SDL  2.0
Macros | Functions | Variables
SDL_audiotypecvt.c File Reference
#include "../SDL_internal.h"
#include "SDL_audio.h"
#include "SDL_audio_c.h"
+ Include dependency graph for SDL_audiotypecvt.c:

Go to the source code of this file.

Macros

#define DEBUG_CONVERT   0
 
#define LESS_RESAMPLERS   0
 
#define NO_RESAMPLERS   0
 
#define NO_CONVERTERS   0
 
#define DIVBY127   0.0078740157480315f
 
#define DIVBY32767   3.05185094759972e-05f
 
#define DIVBY2147483647   4.6566128752458e-10f
 

Functions

static void SDL_Convert_U8_to_S8 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Convert_U8_to_U16LSB (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Convert_U8_to_S16LSB (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Convert_U8_to_U16MSB (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Convert_U8_to_S16MSB (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Convert_U8_to_S32LSB (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Convert_U8_to_S32MSB (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Convert_U8_to_F32LSB (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Convert_U8_to_F32MSB (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Convert_S8_to_U8 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Convert_S8_to_U16LSB (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Convert_S8_to_S16LSB (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Convert_S8_to_U16MSB (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Convert_S8_to_S16MSB (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Convert_S8_to_S32LSB (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Convert_S8_to_S32MSB (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Convert_S8_to_F32LSB (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Convert_S8_to_F32MSB (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Convert_U16LSB_to_U8 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Convert_U16LSB_to_S8 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Convert_U16LSB_to_S16LSB (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Convert_U16LSB_to_U16MSB (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Convert_U16LSB_to_S16MSB (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Convert_U16LSB_to_S32LSB (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Convert_U16LSB_to_S32MSB (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Convert_U16LSB_to_F32LSB (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Convert_U16LSB_to_F32MSB (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Convert_S16LSB_to_U8 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Convert_S16LSB_to_S8 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Convert_S16LSB_to_U16LSB (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Convert_S16LSB_to_U16MSB (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Convert_S16LSB_to_S16MSB (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Convert_S16LSB_to_S32LSB (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Convert_S16LSB_to_S32MSB (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Convert_S16LSB_to_F32LSB (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Convert_S16LSB_to_F32MSB (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Convert_U16MSB_to_U8 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Convert_U16MSB_to_S8 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Convert_U16MSB_to_U16LSB (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Convert_U16MSB_to_S16LSB (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Convert_U16MSB_to_S16MSB (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Convert_U16MSB_to_S32LSB (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Convert_U16MSB_to_S32MSB (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Convert_U16MSB_to_F32LSB (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Convert_U16MSB_to_F32MSB (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Convert_S16MSB_to_U8 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Convert_S16MSB_to_S8 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Convert_S16MSB_to_U16LSB (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Convert_S16MSB_to_S16LSB (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Convert_S16MSB_to_U16MSB (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Convert_S16MSB_to_S32LSB (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Convert_S16MSB_to_S32MSB (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Convert_S16MSB_to_F32LSB (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Convert_S16MSB_to_F32MSB (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Convert_S32LSB_to_U8 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Convert_S32LSB_to_S8 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Convert_S32LSB_to_U16LSB (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Convert_S32LSB_to_S16LSB (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Convert_S32LSB_to_U16MSB (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Convert_S32LSB_to_S16MSB (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Convert_S32LSB_to_S32MSB (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Convert_S32LSB_to_F32LSB (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Convert_S32LSB_to_F32MSB (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Convert_S32MSB_to_U8 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Convert_S32MSB_to_S8 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Convert_S32MSB_to_U16LSB (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Convert_S32MSB_to_S16LSB (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Convert_S32MSB_to_U16MSB (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Convert_S32MSB_to_S16MSB (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Convert_S32MSB_to_S32LSB (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Convert_S32MSB_to_F32LSB (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Convert_S32MSB_to_F32MSB (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Convert_F32LSB_to_U8 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Convert_F32LSB_to_S8 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Convert_F32LSB_to_U16LSB (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Convert_F32LSB_to_S16LSB (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Convert_F32LSB_to_U16MSB (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Convert_F32LSB_to_S16MSB (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Convert_F32LSB_to_S32LSB (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Convert_F32LSB_to_S32MSB (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Convert_F32LSB_to_F32MSB (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Convert_F32MSB_to_U8 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Convert_F32MSB_to_S8 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Convert_F32MSB_to_U16LSB (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Convert_F32MSB_to_S16LSB (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Convert_F32MSB_to_U16MSB (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Convert_F32MSB_to_S16MSB (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Convert_F32MSB_to_S32LSB (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Convert_F32MSB_to_S32MSB (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Convert_F32MSB_to_F32LSB (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Upsample_U8_1c (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Downsample_U8_1c (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Upsample_U8_2c (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Downsample_U8_2c (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Upsample_U8_4c (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Downsample_U8_4c (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Upsample_U8_6c (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Downsample_U8_6c (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Upsample_U8_8c (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Downsample_U8_8c (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Upsample_S8_1c (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Downsample_S8_1c (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Upsample_S8_2c (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Downsample_S8_2c (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Upsample_S8_4c (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Downsample_S8_4c (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Upsample_S8_6c (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Downsample_S8_6c (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Upsample_S8_8c (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Downsample_S8_8c (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Upsample_U16LSB_1c (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Downsample_U16LSB_1c (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Upsample_U16LSB_2c (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Downsample_U16LSB_2c (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Upsample_U16LSB_4c (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Downsample_U16LSB_4c (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Upsample_U16LSB_6c (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Downsample_U16LSB_6c (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Upsample_U16LSB_8c (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Downsample_U16LSB_8c (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Upsample_S16LSB_1c (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Downsample_S16LSB_1c (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Upsample_S16LSB_2c (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Downsample_S16LSB_2c (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Upsample_S16LSB_4c (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Downsample_S16LSB_4c (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Upsample_S16LSB_6c (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Downsample_S16LSB_6c (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Upsample_S16LSB_8c (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Downsample_S16LSB_8c (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Upsample_U16MSB_1c (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Downsample_U16MSB_1c (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Upsample_U16MSB_2c (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Downsample_U16MSB_2c (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Upsample_U16MSB_4c (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Downsample_U16MSB_4c (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Upsample_U16MSB_6c (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Downsample_U16MSB_6c (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Upsample_U16MSB_8c (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Downsample_U16MSB_8c (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Upsample_S16MSB_1c (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Downsample_S16MSB_1c (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Upsample_S16MSB_2c (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Downsample_S16MSB_2c (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Upsample_S16MSB_4c (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Downsample_S16MSB_4c (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Upsample_S16MSB_6c (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Downsample_S16MSB_6c (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Upsample_S16MSB_8c (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Downsample_S16MSB_8c (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Upsample_S32LSB_1c (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Downsample_S32LSB_1c (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Upsample_S32LSB_2c (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Downsample_S32LSB_2c (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Upsample_S32LSB_4c (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Downsample_S32LSB_4c (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Upsample_S32LSB_6c (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Downsample_S32LSB_6c (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Upsample_S32LSB_8c (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Downsample_S32LSB_8c (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Upsample_S32MSB_1c (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Downsample_S32MSB_1c (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Upsample_S32MSB_2c (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Downsample_S32MSB_2c (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Upsample_S32MSB_4c (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Downsample_S32MSB_4c (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Upsample_S32MSB_6c (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Downsample_S32MSB_6c (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Upsample_S32MSB_8c (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Downsample_S32MSB_8c (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Upsample_F32LSB_1c (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Downsample_F32LSB_1c (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Upsample_F32LSB_2c (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Downsample_F32LSB_2c (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Upsample_F32LSB_4c (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Downsample_F32LSB_4c (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Upsample_F32LSB_6c (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Downsample_F32LSB_6c (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Upsample_F32LSB_8c (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Downsample_F32LSB_8c (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Upsample_F32MSB_1c (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Downsample_F32MSB_1c (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Upsample_F32MSB_2c (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Downsample_F32MSB_2c (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Upsample_F32MSB_4c (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Downsample_F32MSB_4c (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Upsample_F32MSB_6c (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Downsample_F32MSB_6c (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Upsample_F32MSB_8c (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Downsample_F32MSB_8c (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Upsample_U8_1c_x2 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Downsample_U8_1c_x2 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Upsample_U8_1c_x4 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Downsample_U8_1c_x4 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Upsample_U8_2c_x2 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Downsample_U8_2c_x2 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Upsample_U8_2c_x4 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Downsample_U8_2c_x4 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Upsample_U8_4c_x2 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Downsample_U8_4c_x2 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Upsample_U8_4c_x4 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Downsample_U8_4c_x4 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Upsample_U8_6c_x2 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Downsample_U8_6c_x2 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Upsample_U8_6c_x4 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Downsample_U8_6c_x4 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Upsample_U8_8c_x2 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Downsample_U8_8c_x2 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Upsample_U8_8c_x4 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Downsample_U8_8c_x4 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Upsample_S8_1c_x2 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Downsample_S8_1c_x2 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Upsample_S8_1c_x4 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Downsample_S8_1c_x4 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Upsample_S8_2c_x2 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Downsample_S8_2c_x2 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Upsample_S8_2c_x4 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Downsample_S8_2c_x4 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Upsample_S8_4c_x2 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Downsample_S8_4c_x2 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Upsample_S8_4c_x4 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Downsample_S8_4c_x4 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Upsample_S8_6c_x2 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Downsample_S8_6c_x2 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Upsample_S8_6c_x4 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Downsample_S8_6c_x4 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Upsample_S8_8c_x2 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Downsample_S8_8c_x2 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Upsample_S8_8c_x4 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Downsample_S8_8c_x4 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Upsample_U16LSB_1c_x2 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Downsample_U16LSB_1c_x2 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Upsample_U16LSB_1c_x4 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Downsample_U16LSB_1c_x4 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Upsample_U16LSB_2c_x2 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Downsample_U16LSB_2c_x2 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Upsample_U16LSB_2c_x4 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Downsample_U16LSB_2c_x4 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Upsample_U16LSB_4c_x2 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Downsample_U16LSB_4c_x2 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Upsample_U16LSB_4c_x4 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Downsample_U16LSB_4c_x4 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Upsample_U16LSB_6c_x2 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Downsample_U16LSB_6c_x2 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Upsample_U16LSB_6c_x4 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Downsample_U16LSB_6c_x4 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Upsample_U16LSB_8c_x2 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Downsample_U16LSB_8c_x2 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Upsample_U16LSB_8c_x4 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Downsample_U16LSB_8c_x4 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Upsample_S16LSB_1c_x2 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Downsample_S16LSB_1c_x2 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Upsample_S16LSB_1c_x4 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Downsample_S16LSB_1c_x4 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Upsample_S16LSB_2c_x2 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Downsample_S16LSB_2c_x2 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Upsample_S16LSB_2c_x4 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Downsample_S16LSB_2c_x4 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Upsample_S16LSB_4c_x2 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Downsample_S16LSB_4c_x2 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Upsample_S16LSB_4c_x4 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Downsample_S16LSB_4c_x4 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Upsample_S16LSB_6c_x2 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Downsample_S16LSB_6c_x2 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Upsample_S16LSB_6c_x4 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Downsample_S16LSB_6c_x4 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Upsample_S16LSB_8c_x2 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Downsample_S16LSB_8c_x2 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Upsample_S16LSB_8c_x4 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Downsample_S16LSB_8c_x4 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Upsample_U16MSB_1c_x2 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Downsample_U16MSB_1c_x2 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Upsample_U16MSB_1c_x4 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Downsample_U16MSB_1c_x4 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Upsample_U16MSB_2c_x2 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Downsample_U16MSB_2c_x2 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Upsample_U16MSB_2c_x4 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Downsample_U16MSB_2c_x4 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Upsample_U16MSB_4c_x2 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Downsample_U16MSB_4c_x2 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Upsample_U16MSB_4c_x4 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Downsample_U16MSB_4c_x4 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Upsample_U16MSB_6c_x2 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Downsample_U16MSB_6c_x2 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Upsample_U16MSB_6c_x4 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Downsample_U16MSB_6c_x4 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Upsample_U16MSB_8c_x2 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Downsample_U16MSB_8c_x2 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Upsample_U16MSB_8c_x4 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Downsample_U16MSB_8c_x4 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Upsample_S16MSB_1c_x2 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Downsample_S16MSB_1c_x2 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Upsample_S16MSB_1c_x4 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Downsample_S16MSB_1c_x4 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Upsample_S16MSB_2c_x2 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Downsample_S16MSB_2c_x2 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Upsample_S16MSB_2c_x4 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Downsample_S16MSB_2c_x4 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Upsample_S16MSB_4c_x2 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Downsample_S16MSB_4c_x2 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Upsample_S16MSB_4c_x4 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Downsample_S16MSB_4c_x4 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Upsample_S16MSB_6c_x2 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Downsample_S16MSB_6c_x2 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Upsample_S16MSB_6c_x4 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Downsample_S16MSB_6c_x4 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Upsample_S16MSB_8c_x2 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Downsample_S16MSB_8c_x2 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Upsample_S16MSB_8c_x4 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Downsample_S16MSB_8c_x4 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Upsample_S32LSB_1c_x2 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Downsample_S32LSB_1c_x2 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Upsample_S32LSB_1c_x4 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Downsample_S32LSB_1c_x4 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Upsample_S32LSB_2c_x2 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Downsample_S32LSB_2c_x2 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Upsample_S32LSB_2c_x4 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Downsample_S32LSB_2c_x4 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Upsample_S32LSB_4c_x2 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Downsample_S32LSB_4c_x2 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Upsample_S32LSB_4c_x4 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Downsample_S32LSB_4c_x4 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Upsample_S32LSB_6c_x2 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Downsample_S32LSB_6c_x2 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Upsample_S32LSB_6c_x4 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Downsample_S32LSB_6c_x4 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Upsample_S32LSB_8c_x2 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Downsample_S32LSB_8c_x2 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Upsample_S32LSB_8c_x4 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Downsample_S32LSB_8c_x4 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Upsample_S32MSB_1c_x2 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Downsample_S32MSB_1c_x2 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Upsample_S32MSB_1c_x4 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Downsample_S32MSB_1c_x4 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Upsample_S32MSB_2c_x2 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Downsample_S32MSB_2c_x2 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Upsample_S32MSB_2c_x4 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Downsample_S32MSB_2c_x4 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Upsample_S32MSB_4c_x2 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Downsample_S32MSB_4c_x2 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Upsample_S32MSB_4c_x4 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Downsample_S32MSB_4c_x4 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Upsample_S32MSB_6c_x2 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Downsample_S32MSB_6c_x2 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Upsample_S32MSB_6c_x4 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Downsample_S32MSB_6c_x4 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Upsample_S32MSB_8c_x2 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Downsample_S32MSB_8c_x2 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Upsample_S32MSB_8c_x4 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Downsample_S32MSB_8c_x4 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Upsample_F32LSB_1c_x2 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Downsample_F32LSB_1c_x2 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Upsample_F32LSB_1c_x4 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Downsample_F32LSB_1c_x4 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Upsample_F32LSB_2c_x2 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Downsample_F32LSB_2c_x2 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Upsample_F32LSB_2c_x4 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Downsample_F32LSB_2c_x4 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Upsample_F32LSB_4c_x2 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Downsample_F32LSB_4c_x2 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Upsample_F32LSB_4c_x4 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Downsample_F32LSB_4c_x4 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Upsample_F32LSB_6c_x2 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Downsample_F32LSB_6c_x2 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Upsample_F32LSB_6c_x4 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Downsample_F32LSB_6c_x4 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Upsample_F32LSB_8c_x2 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Downsample_F32LSB_8c_x2 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Upsample_F32LSB_8c_x4 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Downsample_F32LSB_8c_x4 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Upsample_F32MSB_1c_x2 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Downsample_F32MSB_1c_x2 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Upsample_F32MSB_1c_x4 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Downsample_F32MSB_1c_x4 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Upsample_F32MSB_2c_x2 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Downsample_F32MSB_2c_x2 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Upsample_F32MSB_2c_x4 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Downsample_F32MSB_2c_x4 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Upsample_F32MSB_4c_x2 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Downsample_F32MSB_4c_x2 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Upsample_F32MSB_4c_x4 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Downsample_F32MSB_4c_x4 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Upsample_F32MSB_6c_x2 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Downsample_F32MSB_6c_x2 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Upsample_F32MSB_6c_x4 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Downsample_F32MSB_6c_x4 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Upsample_F32MSB_8c_x2 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Downsample_F32MSB_8c_x2 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Upsample_F32MSB_8c_x4 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 
static void SDL_Downsample_F32MSB_8c_x4 (SDL_AudioCVT *cvt, SDL_AudioFormat format)
 

Variables

const SDL_AudioTypeFilters sdl_audio_type_filters []
 
const SDL_AudioRateFilters sdl_audio_rate_filters []
 

Macro Definition Documentation

#define DEBUG_CONVERT   0

Definition at line 28 of file SDL_audiotypecvt.c.

#define DIVBY127   0.0078740157480315f

Definition at line 52 of file SDL_audiotypecvt.c.

Referenced by SDL_Convert_S8_to_F32LSB(), SDL_Convert_S8_to_F32MSB(), SDL_Convert_U8_to_F32LSB(), and SDL_Convert_U8_to_F32MSB().

#define DIVBY2147483647   4.6566128752458e-10f

Definition at line 54 of file SDL_audiotypecvt.c.

Referenced by SDL_Convert_S32LSB_to_F32LSB(), SDL_Convert_S32LSB_to_F32MSB(), SDL_Convert_S32MSB_to_F32LSB(), and SDL_Convert_S32MSB_to_F32MSB().

#define DIVBY32767   3.05185094759972e-05f

Definition at line 53 of file SDL_audiotypecvt.c.

Referenced by SDL_Convert_S16LSB_to_F32LSB(), SDL_Convert_S16LSB_to_F32MSB(), SDL_Convert_S16MSB_to_F32LSB(), SDL_Convert_S16MSB_to_F32MSB(), SDL_Convert_U16LSB_to_F32LSB(), SDL_Convert_U16LSB_to_F32MSB(), SDL_Convert_U16MSB_to_F32LSB(), and SDL_Convert_U16MSB_to_F32MSB().

#define LESS_RESAMPLERS   0

Definition at line 36 of file SDL_audiotypecvt.c.

#define NO_CONVERTERS   0

Definition at line 46 of file SDL_audiotypecvt.c.

#define NO_RESAMPLERS   0

Definition at line 41 of file SDL_audiotypecvt.c.

Function Documentation

static void SDL_Convert_F32LSB_to_F32MSB ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 1957 of file SDL_audiotypecvt.c.

References AUDIO_F32MSB, SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, i, SDL_AudioCVT::len_cvt, SDL_SwapFloatBE, SDL_SwapFloatLE, and SDLCALL.

1958 {
1959  int i;
1960  const float *src;
1961  float *dst;
1962 
1963 #if DEBUG_CONVERT
1964  fprintf(stderr, "Converting AUDIO_F32LSB to AUDIO_F32MSB.\n");
1965 #endif
1966 
1967  src = (const float *) cvt->buf;
1968  dst = (float *) cvt->buf;
1969  for (i = cvt->len_cvt / sizeof (float); i; --i, ++src, ++dst) {
1970  const float val = SDL_SwapFloatLE(*src);
1971  *dst = SDL_SwapFloatBE(val);
1972  }
1973 
1974  if (cvt->filters[++cvt->filter_index]) {
1975  cvt->filters[cvt->filter_index] (cvt, AUDIO_F32MSB);
1976  }
1977 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
SDL_SwapFloatBE
#define SDL_SwapFloatBE(X)
Definition: SDL_endian.h:218
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_SwapFloatLE
#define SDL_SwapFloatLE(X)
Definition: SDL_endian.h:214
AUDIO_F32MSB
#define AUDIO_F32MSB
Definition: SDL_audio.h:113
val
GLuint GLfloat * val
Definition: SDL_opengl_glext.h:1492
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
i
return Display return Display Bool Bool int int int return Display XEvent Bool(*) XPointer return Display return Display Drawable _Xconst char unsigned int unsigned int return Display Pixmap Pixmap XColor XColor unsigned int unsigned int return Display _Xconst char char int char return Display Visual unsigned int int int char unsigned int unsigned int in i)
Definition: SDL_x11sym.h:42
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Convert_F32LSB_to_S16LSB ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 1839 of file SDL_audiotypecvt.c.

References AUDIO_S16LSB, SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, i, SDL_AudioCVT::len_cvt, SDL_SwapFloatLE, SDL_SwapLE16, and SDLCALL.

1840 {
1841  int i;
1842  const float *src;
1843  Sint16 *dst;
1844 
1845 #if DEBUG_CONVERT
1846  fprintf(stderr, "Converting AUDIO_F32LSB to AUDIO_S16LSB.\n");
1847 #endif
1848 
1849  src = (const float *) cvt->buf;
1850  dst = (Sint16 *) cvt->buf;
1851  for (i = cvt->len_cvt / sizeof (float); i; --i, ++src, ++dst) {
1852  const Sint16 val = ((Sint16) (SDL_SwapFloatLE(*src) * 32767.0f));
1853  *dst = ((Sint16) SDL_SwapLE16(val));
1854  }
1855 
1856  cvt->len_cvt /= 2;
1857  if (cvt->filters[++cvt->filter_index]) {
1858  cvt->filters[cvt->filter_index] (cvt, AUDIO_S16LSB);
1859  }
1860 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_SwapFloatLE
#define SDL_SwapFloatLE(X)
Definition: SDL_endian.h:214
val
GLuint GLfloat * val
Definition: SDL_opengl_glext.h:1492
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
i
return Display return Display Bool Bool int int int return Display XEvent Bool(*) XPointer return Display return Display Drawable _Xconst char unsigned int unsigned int return Display Pixmap Pixmap XColor XColor unsigned int unsigned int return Display _Xconst char char int char return Display Visual unsigned int int int char unsigned int unsigned int in i)
Definition: SDL_x11sym.h:42
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
AUDIO_S16LSB
#define AUDIO_S16LSB
Definition: SDL_audio.h:92
SDL_SwapLE16
#define SDL_SwapLE16(X)
Definition: SDL_endian.h:211
src
GLenum src
Definition: SDL_opengl_glext.h:1737
Sint16
int16_t Sint16
A signed 16-bit integer type.
Definition: SDL_stdinc.h:143
static void SDL_Convert_F32LSB_to_S16MSB ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 1887 of file SDL_audiotypecvt.c.

References AUDIO_S16MSB, SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, i, SDL_AudioCVT::len_cvt, SDL_SwapBE16, SDL_SwapFloatLE, and SDLCALL.

1888 {
1889  int i;
1890  const float *src;
1891  Sint16 *dst;
1892 
1893 #if DEBUG_CONVERT
1894  fprintf(stderr, "Converting AUDIO_F32LSB to AUDIO_S16MSB.\n");
1895 #endif
1896 
1897  src = (const float *) cvt->buf;
1898  dst = (Sint16 *) cvt->buf;
1899  for (i = cvt->len_cvt / sizeof (float); i; --i, ++src, ++dst) {
1900  const Sint16 val = ((Sint16) (SDL_SwapFloatLE(*src) * 32767.0f));
1901  *dst = ((Sint16) SDL_SwapBE16(val));
1902  }
1903 
1904  cvt->len_cvt /= 2;
1905  if (cvt->filters[++cvt->filter_index]) {
1906  cvt->filters[cvt->filter_index] (cvt, AUDIO_S16MSB);
1907  }
1908 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_SwapFloatLE
#define SDL_SwapFloatLE(X)
Definition: SDL_endian.h:214
SDL_SwapBE16
#define SDL_SwapBE16(X)
Definition: SDL_endian.h:215
val
GLuint GLfloat * val
Definition: SDL_opengl_glext.h:1492
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
i
return Display return Display Bool Bool int int int return Display XEvent Bool(*) XPointer return Display return Display Drawable _Xconst char unsigned int unsigned int return Display Pixmap Pixmap XColor XColor unsigned int unsigned int return Display _Xconst char char int char return Display Visual unsigned int int int char unsigned int unsigned int in i)
Definition: SDL_x11sym.h:42
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
AUDIO_S16MSB
#define AUDIO_S16MSB
Definition: SDL_audio.h:94
src
GLenum src
Definition: SDL_opengl_glext.h:1737
Sint16
int16_t Sint16
A signed 16-bit integer type.
Definition: SDL_stdinc.h:143
static void SDL_Convert_F32LSB_to_S32LSB ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 1911 of file SDL_audiotypecvt.c.

References AUDIO_S32LSB, SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, i, SDL_AudioCVT::len_cvt, SDL_SwapFloatLE, SDL_SwapLE32, and SDLCALL.

1912 {
1913  int i;
1914  const float *src;
1915  Sint32 *dst;
1916 
1917 #if DEBUG_CONVERT
1918  fprintf(stderr, "Converting AUDIO_F32LSB to AUDIO_S32LSB.\n");
1919 #endif
1920 
1921  src = (const float *) cvt->buf;
1922  dst = (Sint32 *) cvt->buf;
1923  for (i = cvt->len_cvt / sizeof (float); i; --i, ++src, ++dst) {
1924  const Sint32 val = ((Sint32) (SDL_SwapFloatLE(*src) * 2147483647.0));
1925  *dst = ((Sint32) SDL_SwapLE32(val));
1926  }
1927 
1928  if (cvt->filters[++cvt->filter_index]) {
1929  cvt->filters[cvt->filter_index] (cvt, AUDIO_S32LSB);
1930  }
1931 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_SwapFloatLE
#define SDL_SwapFloatLE(X)
Definition: SDL_endian.h:214
val
GLuint GLfloat * val
Definition: SDL_opengl_glext.h:1492
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
SDL_SwapLE32
#define SDL_SwapLE32(X)
Definition: SDL_endian.h:212
AUDIO_S32LSB
#define AUDIO_S32LSB
Definition: SDL_audio.h:103
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
i
return Display return Display Bool Bool int int int return Display XEvent Bool(*) XPointer return Display return Display Drawable _Xconst char unsigned int unsigned int return Display Pixmap Pixmap XColor XColor unsigned int unsigned int return Display _Xconst char char int char return Display Visual unsigned int int int char unsigned int unsigned int in i)
Definition: SDL_x11sym.h:42
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Convert_F32LSB_to_S32MSB ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 1934 of file SDL_audiotypecvt.c.

References AUDIO_S32MSB, SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, i, SDL_AudioCVT::len_cvt, SDL_SwapBE32, SDL_SwapFloatLE, and SDLCALL.

1935 {
1936  int i;
1937  const float *src;
1938  Sint32 *dst;
1939 
1940 #if DEBUG_CONVERT
1941  fprintf(stderr, "Converting AUDIO_F32LSB to AUDIO_S32MSB.\n");
1942 #endif
1943 
1944  src = (const float *) cvt->buf;
1945  dst = (Sint32 *) cvt->buf;
1946  for (i = cvt->len_cvt / sizeof (float); i; --i, ++src, ++dst) {
1947  const Sint32 val = ((Sint32) (SDL_SwapFloatLE(*src) * 2147483647.0));
1948  *dst = ((Sint32) SDL_SwapBE32(val));
1949  }
1950 
1951  if (cvt->filters[++cvt->filter_index]) {
1952  cvt->filters[cvt->filter_index] (cvt, AUDIO_S32MSB);
1953  }
1954 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
AUDIO_S32MSB
#define AUDIO_S32MSB
Definition: SDL_audio.h:104
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_SwapFloatLE
#define SDL_SwapFloatLE(X)
Definition: SDL_endian.h:214
SDL_SwapBE32
#define SDL_SwapBE32(X)
Definition: SDL_endian.h:216
val
GLuint GLfloat * val
Definition: SDL_opengl_glext.h:1492
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
i
return Display return Display Bool Bool int int int return Display XEvent Bool(*) XPointer return Display return Display Drawable _Xconst char unsigned int unsigned int return Display Pixmap Pixmap XColor XColor unsigned int unsigned int return Display _Xconst char char int char return Display Visual unsigned int int int char unsigned int unsigned int in i)
Definition: SDL_x11sym.h:42
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Convert_F32LSB_to_S8 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 1791 of file SDL_audiotypecvt.c.

References AUDIO_S8, SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, i, SDL_AudioCVT::len_cvt, SDL_SwapFloatLE, and SDLCALL.

1792 {
1793  int i;
1794  const float *src;
1795  Sint8 *dst;
1796 
1797 #if DEBUG_CONVERT
1798  fprintf(stderr, "Converting AUDIO_F32LSB to AUDIO_S8.\n");
1799 #endif
1800 
1801  src = (const float *) cvt->buf;
1802  dst = (Sint8 *) cvt->buf;
1803  for (i = cvt->len_cvt / sizeof (float); i; --i, ++src, ++dst) {
1804  const Sint8 val = ((Sint8) (SDL_SwapFloatLE(*src) * 127.0f));
1805  *dst = ((Sint8) val);
1806  }
1807 
1808  cvt->len_cvt /= 4;
1809  if (cvt->filters[++cvt->filter_index]) {
1810  cvt->filters[cvt->filter_index] (cvt, AUDIO_S8);
1811  }
1812 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_SwapFloatLE
#define SDL_SwapFloatLE(X)
Definition: SDL_endian.h:214
val
GLuint GLfloat * val
Definition: SDL_opengl_glext.h:1492
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
Sint8
int8_t Sint8
A signed 8-bit integer type.
Definition: SDL_stdinc.h:135
i
return Display return Display Bool Bool int int int return Display XEvent Bool(*) XPointer return Display return Display Drawable _Xconst char unsigned int unsigned int return Display Pixmap Pixmap XColor XColor unsigned int unsigned int return Display _Xconst char char int char return Display Visual unsigned int int int char unsigned int unsigned int in i)
Definition: SDL_x11sym.h:42
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
AUDIO_S8
#define AUDIO_S8
Definition: SDL_audio.h:90
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Convert_F32LSB_to_U16LSB ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 1815 of file SDL_audiotypecvt.c.

References AUDIO_U16LSB, SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, i, SDL_AudioCVT::len_cvt, SDL_SwapFloatLE, SDL_SwapLE16, and SDLCALL.

1816 {
1817  int i;
1818  const float *src;
1819  Uint16 *dst;
1820 
1821 #if DEBUG_CONVERT
1822  fprintf(stderr, "Converting AUDIO_F32LSB to AUDIO_U16LSB.\n");
1823 #endif
1824 
1825  src = (const float *) cvt->buf;
1826  dst = (Uint16 *) cvt->buf;
1827  for (i = cvt->len_cvt / sizeof (float); i; --i, ++src, ++dst) {
1828  const Uint16 val = ((Uint16) ((SDL_SwapFloatLE(*src) + 1.0f) * 32767.0f));
1829  *dst = SDL_SwapLE16(val);
1830  }
1831 
1832  cvt->len_cvt /= 2;
1833  if (cvt->filters[++cvt->filter_index]) {
1834  cvt->filters[cvt->filter_index] (cvt, AUDIO_U16LSB);
1835  }
1836 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
AUDIO_U16LSB
#define AUDIO_U16LSB
Definition: SDL_audio.h:91
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
f
GLfloat f
Definition: SDL_opengl_glext.h:1870
SDL_SwapFloatLE
#define SDL_SwapFloatLE(X)
Definition: SDL_endian.h:214
val
GLuint GLfloat * val
Definition: SDL_opengl_glext.h:1492
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
i
return Display return Display Bool Bool int int int return Display XEvent Bool(*) XPointer return Display return Display Drawable _Xconst char unsigned int unsigned int return Display Pixmap Pixmap XColor XColor unsigned int unsigned int return Display _Xconst char char int char return Display Visual unsigned int int int char unsigned int unsigned int in i)
Definition: SDL_x11sym.h:42
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
Uint16
uint16_t Uint16
An unsigned 16-bit integer type.
Definition: SDL_stdinc.h:147
SDL_SwapLE16
#define SDL_SwapLE16(X)
Definition: SDL_endian.h:211
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Convert_F32LSB_to_U16MSB ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 1863 of file SDL_audiotypecvt.c.

References AUDIO_U16MSB, SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, i, SDL_AudioCVT::len_cvt, SDL_SwapBE16, SDL_SwapFloatLE, and SDLCALL.

1864 {
1865  int i;
1866  const float *src;
1867  Uint16 *dst;
1868 
1869 #if DEBUG_CONVERT
1870  fprintf(stderr, "Converting AUDIO_F32LSB to AUDIO_U16MSB.\n");
1871 #endif
1872 
1873  src = (const float *) cvt->buf;
1874  dst = (Uint16 *) cvt->buf;
1875  for (i = cvt->len_cvt / sizeof (float); i; --i, ++src, ++dst) {
1876  const Uint16 val = ((Uint16) ((SDL_SwapFloatLE(*src) + 1.0f) * 32767.0f));
1877  *dst = SDL_SwapBE16(val);
1878  }
1879 
1880  cvt->len_cvt /= 2;
1881  if (cvt->filters[++cvt->filter_index]) {
1882  cvt->filters[cvt->filter_index] (cvt, AUDIO_U16MSB);
1883  }
1884 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
f
GLfloat f
Definition: SDL_opengl_glext.h:1870
SDL_SwapFloatLE
#define SDL_SwapFloatLE(X)
Definition: SDL_endian.h:214
SDL_SwapBE16
#define SDL_SwapBE16(X)
Definition: SDL_endian.h:215
val
GLuint GLfloat * val
Definition: SDL_opengl_glext.h:1492
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
i
return Display return Display Bool Bool int int int return Display XEvent Bool(*) XPointer return Display return Display Drawable _Xconst char unsigned int unsigned int return Display Pixmap Pixmap XColor XColor unsigned int unsigned int return Display _Xconst char char int char return Display Visual unsigned int int int char unsigned int unsigned int in i)
Definition: SDL_x11sym.h:42
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
Uint16
uint16_t Uint16
An unsigned 16-bit integer type.
Definition: SDL_stdinc.h:147
src
GLenum src
Definition: SDL_opengl_glext.h:1737
AUDIO_U16MSB
#define AUDIO_U16MSB
Definition: SDL_audio.h:93
static void SDL_Convert_F32LSB_to_U8 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 1767 of file SDL_audiotypecvt.c.

References AUDIO_U8, SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, i, SDL_AudioCVT::len_cvt, SDL_SwapFloatLE, and SDLCALL.

1768 {
1769  int i;
1770  const float *src;
1771  Uint8 *dst;
1772 
1773 #if DEBUG_CONVERT
1774  fprintf(stderr, "Converting AUDIO_F32LSB to AUDIO_U8.\n");
1775 #endif
1776 
1777  src = (const float *) cvt->buf;
1778  dst = (Uint8 *) cvt->buf;
1779  for (i = cvt->len_cvt / sizeof (float); i; --i, ++src, ++dst) {
1780  const Uint8 val = ((Uint8) ((SDL_SwapFloatLE(*src) + 1.0f) * 127.0f));
1781  *dst = val;
1782  }
1783 
1784  cvt->len_cvt /= 4;
1785  if (cvt->filters[++cvt->filter_index]) {
1786  cvt->filters[cvt->filter_index] (cvt, AUDIO_U8);
1787  }
1788 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
f
GLfloat f
Definition: SDL_opengl_glext.h:1870
SDL_SwapFloatLE
#define SDL_SwapFloatLE(X)
Definition: SDL_endian.h:214
AUDIO_U8
#define AUDIO_U8
Definition: SDL_audio.h:89
val
GLuint GLfloat * val
Definition: SDL_opengl_glext.h:1492
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
Uint8
uint8_t Uint8
An unsigned 8-bit integer type.
Definition: SDL_stdinc.h:139
i
return Display return Display Bool Bool int int int return Display XEvent Bool(*) XPointer return Display return Display Drawable _Xconst char unsigned int unsigned int return Display Pixmap Pixmap XColor XColor unsigned int unsigned int return Display _Xconst char char int char return Display Visual unsigned int int int char unsigned int unsigned int in i)
Definition: SDL_x11sym.h:42
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Convert_F32MSB_to_F32LSB ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 2170 of file SDL_audiotypecvt.c.

References AUDIO_F32LSB, SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, i, SDL_AudioCVT::len_cvt, SDL_SwapFloatBE, and SDL_SwapFloatLE.

2171 {
2172  int i;
2173  const float *src;
2174  float *dst;
2175 
2176 #if DEBUG_CONVERT
2177  fprintf(stderr, "Converting AUDIO_F32MSB to AUDIO_F32LSB.\n");
2178 #endif
2179 
2180  src = (const float *) cvt->buf;
2181  dst = (float *) cvt->buf;
2182  for (i = cvt->len_cvt / sizeof (float); i; --i, ++src, ++dst) {
2183  const float val = SDL_SwapFloatBE(*src);
2184  *dst = SDL_SwapFloatLE(val);
2185  }
2186 
2187  if (cvt->filters[++cvt->filter_index]) {
2188  cvt->filters[cvt->filter_index] (cvt, AUDIO_F32LSB);
2189  }
2190 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
SDL_SwapFloatBE
#define SDL_SwapFloatBE(X)
Definition: SDL_endian.h:218
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_SwapFloatLE
#define SDL_SwapFloatLE(X)
Definition: SDL_endian.h:214
val
GLuint GLfloat * val
Definition: SDL_opengl_glext.h:1492
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
AUDIO_F32LSB
#define AUDIO_F32LSB
Definition: SDL_audio.h:112
i
return Display return Display Bool Bool int int int return Display XEvent Bool(*) XPointer return Display return Display Drawable _Xconst char unsigned int unsigned int return Display Pixmap Pixmap XColor XColor unsigned int unsigned int return Display _Xconst char char int char return Display Visual unsigned int int int char unsigned int unsigned int in i)
Definition: SDL_x11sym.h:42
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Convert_F32MSB_to_S16LSB ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 2052 of file SDL_audiotypecvt.c.

References AUDIO_S16LSB, SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, i, SDL_AudioCVT::len_cvt, SDL_SwapFloatBE, SDL_SwapLE16, and SDLCALL.

2053 {
2054  int i;
2055  const float *src;
2056  Sint16 *dst;
2057 
2058 #if DEBUG_CONVERT
2059  fprintf(stderr, "Converting AUDIO_F32MSB to AUDIO_S16LSB.\n");
2060 #endif
2061 
2062  src = (const float *) cvt->buf;
2063  dst = (Sint16 *) cvt->buf;
2064  for (i = cvt->len_cvt / sizeof (float); i; --i, ++src, ++dst) {
2065  const Sint16 val = ((Sint16) (SDL_SwapFloatBE(*src) * 32767.0f));
2066  *dst = ((Sint16) SDL_SwapLE16(val));
2067  }
2068 
2069  cvt->len_cvt /= 2;
2070  if (cvt->filters[++cvt->filter_index]) {
2071  cvt->filters[cvt->filter_index] (cvt, AUDIO_S16LSB);
2072  }
2073 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
SDL_SwapFloatBE
#define SDL_SwapFloatBE(X)
Definition: SDL_endian.h:218
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
val
GLuint GLfloat * val
Definition: SDL_opengl_glext.h:1492
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
i
return Display return Display Bool Bool int int int return Display XEvent Bool(*) XPointer return Display return Display Drawable _Xconst char unsigned int unsigned int return Display Pixmap Pixmap XColor XColor unsigned int unsigned int return Display _Xconst char char int char return Display Visual unsigned int int int char unsigned int unsigned int in i)
Definition: SDL_x11sym.h:42
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
AUDIO_S16LSB
#define AUDIO_S16LSB
Definition: SDL_audio.h:92
SDL_SwapLE16
#define SDL_SwapLE16(X)
Definition: SDL_endian.h:211
src
GLenum src
Definition: SDL_opengl_glext.h:1737
Sint16
int16_t Sint16
A signed 16-bit integer type.
Definition: SDL_stdinc.h:143
static void SDL_Convert_F32MSB_to_S16MSB ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 2100 of file SDL_audiotypecvt.c.

References AUDIO_S16MSB, SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, i, SDL_AudioCVT::len_cvt, SDL_SwapBE16, SDL_SwapFloatBE, and SDLCALL.

2101 {
2102  int i;
2103  const float *src;
2104  Sint16 *dst;
2105 
2106 #if DEBUG_CONVERT
2107  fprintf(stderr, "Converting AUDIO_F32MSB to AUDIO_S16MSB.\n");
2108 #endif
2109 
2110  src = (const float *) cvt->buf;
2111  dst = (Sint16 *) cvt->buf;
2112  for (i = cvt->len_cvt / sizeof (float); i; --i, ++src, ++dst) {
2113  const Sint16 val = ((Sint16) (SDL_SwapFloatBE(*src) * 32767.0f));
2114  *dst = ((Sint16) SDL_SwapBE16(val));
2115  }
2116 
2117  cvt->len_cvt /= 2;
2118  if (cvt->filters[++cvt->filter_index]) {
2119  cvt->filters[cvt->filter_index] (cvt, AUDIO_S16MSB);
2120  }
2121 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
SDL_SwapFloatBE
#define SDL_SwapFloatBE(X)
Definition: SDL_endian.h:218
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_SwapBE16
#define SDL_SwapBE16(X)
Definition: SDL_endian.h:215
val
GLuint GLfloat * val
Definition: SDL_opengl_glext.h:1492
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
i
return Display return Display Bool Bool int int int return Display XEvent Bool(*) XPointer return Display return Display Drawable _Xconst char unsigned int unsigned int return Display Pixmap Pixmap XColor XColor unsigned int unsigned int return Display _Xconst char char int char return Display Visual unsigned int int int char unsigned int unsigned int in i)
Definition: SDL_x11sym.h:42
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
AUDIO_S16MSB
#define AUDIO_S16MSB
Definition: SDL_audio.h:94
src
GLenum src
Definition: SDL_opengl_glext.h:1737
Sint16
int16_t Sint16
A signed 16-bit integer type.
Definition: SDL_stdinc.h:143
static void SDL_Convert_F32MSB_to_S32LSB ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 2124 of file SDL_audiotypecvt.c.

References AUDIO_S32LSB, SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, i, SDL_AudioCVT::len_cvt, SDL_SwapFloatBE, SDL_SwapLE32, and SDLCALL.

2125 {
2126  int i;
2127  const float *src;
2128  Sint32 *dst;
2129 
2130 #if DEBUG_CONVERT
2131  fprintf(stderr, "Converting AUDIO_F32MSB to AUDIO_S32LSB.\n");
2132 #endif
2133 
2134  src = (const float *) cvt->buf;
2135  dst = (Sint32 *) cvt->buf;
2136  for (i = cvt->len_cvt / sizeof (float); i; --i, ++src, ++dst) {
2137  const Sint32 val = ((Sint32) (SDL_SwapFloatBE(*src) * 2147483647.0));
2138  *dst = ((Sint32) SDL_SwapLE32(val));
2139  }
2140 
2141  if (cvt->filters[++cvt->filter_index]) {
2142  cvt->filters[cvt->filter_index] (cvt, AUDIO_S32LSB);
2143  }
2144 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
SDL_SwapFloatBE
#define SDL_SwapFloatBE(X)
Definition: SDL_endian.h:218
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
val
GLuint GLfloat * val
Definition: SDL_opengl_glext.h:1492
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
SDL_SwapLE32
#define SDL_SwapLE32(X)
Definition: SDL_endian.h:212
AUDIO_S32LSB
#define AUDIO_S32LSB
Definition: SDL_audio.h:103
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
i
return Display return Display Bool Bool int int int return Display XEvent Bool(*) XPointer return Display return Display Drawable _Xconst char unsigned int unsigned int return Display Pixmap Pixmap XColor XColor unsigned int unsigned int return Display _Xconst char char int char return Display Visual unsigned int int int char unsigned int unsigned int in i)
Definition: SDL_x11sym.h:42
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Convert_F32MSB_to_S32MSB ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 2147 of file SDL_audiotypecvt.c.

References AUDIO_S32MSB, SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, i, SDL_AudioCVT::len_cvt, SDL_SwapBE32, SDL_SwapFloatBE, and SDLCALL.

2148 {
2149  int i;
2150  const float *src;
2151  Sint32 *dst;
2152 
2153 #if DEBUG_CONVERT
2154  fprintf(stderr, "Converting AUDIO_F32MSB to AUDIO_S32MSB.\n");
2155 #endif
2156 
2157  src = (const float *) cvt->buf;
2158  dst = (Sint32 *) cvt->buf;
2159  for (i = cvt->len_cvt / sizeof (float); i; --i, ++src, ++dst) {
2160  const Sint32 val = ((Sint32) (SDL_SwapFloatBE(*src) * 2147483647.0));
2161  *dst = ((Sint32) SDL_SwapBE32(val));
2162  }
2163 
2164  if (cvt->filters[++cvt->filter_index]) {
2165  cvt->filters[cvt->filter_index] (cvt, AUDIO_S32MSB);
2166  }
2167 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
SDL_SwapFloatBE
#define SDL_SwapFloatBE(X)
Definition: SDL_endian.h:218
AUDIO_S32MSB
#define AUDIO_S32MSB
Definition: SDL_audio.h:104
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_SwapBE32
#define SDL_SwapBE32(X)
Definition: SDL_endian.h:216
val
GLuint GLfloat * val
Definition: SDL_opengl_glext.h:1492
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
i
return Display return Display Bool Bool int int int return Display XEvent Bool(*) XPointer return Display return Display Drawable _Xconst char unsigned int unsigned int return Display Pixmap Pixmap XColor XColor unsigned int unsigned int return Display _Xconst char char int char return Display Visual unsigned int int int char unsigned int unsigned int in i)
Definition: SDL_x11sym.h:42
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Convert_F32MSB_to_S8 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 2004 of file SDL_audiotypecvt.c.

References AUDIO_S8, SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, i, SDL_AudioCVT::len_cvt, SDL_SwapFloatBE, and SDLCALL.

2005 {
2006  int i;
2007  const float *src;
2008  Sint8 *dst;
2009 
2010 #if DEBUG_CONVERT
2011  fprintf(stderr, "Converting AUDIO_F32MSB to AUDIO_S8.\n");
2012 #endif
2013 
2014  src = (const float *) cvt->buf;
2015  dst = (Sint8 *) cvt->buf;
2016  for (i = cvt->len_cvt / sizeof (float); i; --i, ++src, ++dst) {
2017  const Sint8 val = ((Sint8) (SDL_SwapFloatBE(*src) * 127.0f));
2018  *dst = ((Sint8) val);
2019  }
2020 
2021  cvt->len_cvt /= 4;
2022  if (cvt->filters[++cvt->filter_index]) {
2023  cvt->filters[cvt->filter_index] (cvt, AUDIO_S8);
2024  }
2025 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
SDL_SwapFloatBE
#define SDL_SwapFloatBE(X)
Definition: SDL_endian.h:218
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
val
GLuint GLfloat * val
Definition: SDL_opengl_glext.h:1492
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
Sint8
int8_t Sint8
A signed 8-bit integer type.
Definition: SDL_stdinc.h:135
i
return Display return Display Bool Bool int int int return Display XEvent Bool(*) XPointer return Display return Display Drawable _Xconst char unsigned int unsigned int return Display Pixmap Pixmap XColor XColor unsigned int unsigned int return Display _Xconst char char int char return Display Visual unsigned int int int char unsigned int unsigned int in i)
Definition: SDL_x11sym.h:42
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
AUDIO_S8
#define AUDIO_S8
Definition: SDL_audio.h:90
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Convert_F32MSB_to_U16LSB ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 2028 of file SDL_audiotypecvt.c.

References AUDIO_U16LSB, SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, i, SDL_AudioCVT::len_cvt, SDL_SwapFloatBE, SDL_SwapLE16, and SDLCALL.

2029 {
2030  int i;
2031  const float *src;
2032  Uint16 *dst;
2033 
2034 #if DEBUG_CONVERT
2035  fprintf(stderr, "Converting AUDIO_F32MSB to AUDIO_U16LSB.\n");
2036 #endif
2037 
2038  src = (const float *) cvt->buf;
2039  dst = (Uint16 *) cvt->buf;
2040  for (i = cvt->len_cvt / sizeof (float); i; --i, ++src, ++dst) {
2041  const Uint16 val = ((Uint16) ((SDL_SwapFloatBE(*src) + 1.0f) * 32767.0f));
2042  *dst = SDL_SwapLE16(val);
2043  }
2044 
2045  cvt->len_cvt /= 2;
2046  if (cvt->filters[++cvt->filter_index]) {
2047  cvt->filters[cvt->filter_index] (cvt, AUDIO_U16LSB);
2048  }
2049 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
SDL_SwapFloatBE
#define SDL_SwapFloatBE(X)
Definition: SDL_endian.h:218
AUDIO_U16LSB
#define AUDIO_U16LSB
Definition: SDL_audio.h:91
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
f
GLfloat f
Definition: SDL_opengl_glext.h:1870
val
GLuint GLfloat * val
Definition: SDL_opengl_glext.h:1492
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
i
return Display return Display Bool Bool int int int return Display XEvent Bool(*) XPointer return Display return Display Drawable _Xconst char unsigned int unsigned int return Display Pixmap Pixmap XColor XColor unsigned int unsigned int return Display _Xconst char char int char return Display Visual unsigned int int int char unsigned int unsigned int in i)
Definition: SDL_x11sym.h:42
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
Uint16
uint16_t Uint16
An unsigned 16-bit integer type.
Definition: SDL_stdinc.h:147
SDL_SwapLE16
#define SDL_SwapLE16(X)
Definition: SDL_endian.h:211
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Convert_F32MSB_to_U16MSB ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 2076 of file SDL_audiotypecvt.c.

References AUDIO_U16MSB, SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, i, SDL_AudioCVT::len_cvt, SDL_SwapBE16, SDL_SwapFloatBE, and SDLCALL.

2077 {
2078  int i;
2079  const float *src;
2080  Uint16 *dst;
2081 
2082 #if DEBUG_CONVERT
2083  fprintf(stderr, "Converting AUDIO_F32MSB to AUDIO_U16MSB.\n");
2084 #endif
2085 
2086  src = (const float *) cvt->buf;
2087  dst = (Uint16 *) cvt->buf;
2088  for (i = cvt->len_cvt / sizeof (float); i; --i, ++src, ++dst) {
2089  const Uint16 val = ((Uint16) ((SDL_SwapFloatBE(*src) + 1.0f) * 32767.0f));
2090  *dst = SDL_SwapBE16(val);
2091  }
2092 
2093  cvt->len_cvt /= 2;
2094  if (cvt->filters[++cvt->filter_index]) {
2095  cvt->filters[cvt->filter_index] (cvt, AUDIO_U16MSB);
2096  }
2097 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
SDL_SwapFloatBE
#define SDL_SwapFloatBE(X)
Definition: SDL_endian.h:218
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
f
GLfloat f
Definition: SDL_opengl_glext.h:1870
SDL_SwapBE16
#define SDL_SwapBE16(X)
Definition: SDL_endian.h:215
val
GLuint GLfloat * val
Definition: SDL_opengl_glext.h:1492
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
i
return Display return Display Bool Bool int int int return Display XEvent Bool(*) XPointer return Display return Display Drawable _Xconst char unsigned int unsigned int return Display Pixmap Pixmap XColor XColor unsigned int unsigned int return Display _Xconst char char int char return Display Visual unsigned int int int char unsigned int unsigned int in i)
Definition: SDL_x11sym.h:42
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
Uint16
uint16_t Uint16
An unsigned 16-bit integer type.
Definition: SDL_stdinc.h:147
src
GLenum src
Definition: SDL_opengl_glext.h:1737
AUDIO_U16MSB
#define AUDIO_U16MSB
Definition: SDL_audio.h:93
static void SDL_Convert_F32MSB_to_U8 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 1980 of file SDL_audiotypecvt.c.

References AUDIO_U8, SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, i, SDL_AudioCVT::len_cvt, SDL_SwapFloatBE, and SDLCALL.

1981 {
1982  int i;
1983  const float *src;
1984  Uint8 *dst;
1985 
1986 #if DEBUG_CONVERT
1987  fprintf(stderr, "Converting AUDIO_F32MSB to AUDIO_U8.\n");
1988 #endif
1989 
1990  src = (const float *) cvt->buf;
1991  dst = (Uint8 *) cvt->buf;
1992  for (i = cvt->len_cvt / sizeof (float); i; --i, ++src, ++dst) {
1993  const Uint8 val = ((Uint8) ((SDL_SwapFloatBE(*src) + 1.0f) * 127.0f));
1994  *dst = val;
1995  }
1996 
1997  cvt->len_cvt /= 4;
1998  if (cvt->filters[++cvt->filter_index]) {
1999  cvt->filters[cvt->filter_index] (cvt, AUDIO_U8);
2000  }
2001 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
SDL_SwapFloatBE
#define SDL_SwapFloatBE(X)
Definition: SDL_endian.h:218
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
f
GLfloat f
Definition: SDL_opengl_glext.h:1870
AUDIO_U8
#define AUDIO_U8
Definition: SDL_audio.h:89
val
GLuint GLfloat * val
Definition: SDL_opengl_glext.h:1492
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
Uint8
uint8_t Uint8
An unsigned 8-bit integer type.
Definition: SDL_stdinc.h:139
i
return Display return Display Bool Bool int int int return Display XEvent Bool(*) XPointer return Display return Display Drawable _Xconst char unsigned int unsigned int return Display Pixmap Pixmap XColor XColor unsigned int unsigned int return Display _Xconst char char int char return Display Visual unsigned int int int char unsigned int unsigned int in i)
Definition: SDL_x11sym.h:42
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Convert_S16LSB_to_F32LSB ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 867 of file SDL_audiotypecvt.c.

References AUDIO_F32LSB, SDL_AudioCVT::buf, DIVBY32767, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, i, SDL_AudioCVT::len_cvt, SDL_SwapFloatLE, SDL_SwapLE16, and SDLCALL.

868 {
869  int i;
870  const Uint16 *src;
871  float *dst;
872 
873 #if DEBUG_CONVERT
874  fprintf(stderr, "Converting AUDIO_S16LSB to AUDIO_F32LSB.\n");
875 #endif
876 
877  src = ((const Uint16 *) (cvt->buf + cvt->len_cvt)) - 1;
878  dst = ((float *) (cvt->buf + cvt->len_cvt * 2)) - 1;
879  for (i = cvt->len_cvt / sizeof (Uint16); i; --i, --src, --dst) {
880  const float val = (((float) ((Sint16) SDL_SwapLE16(*src))) * DIVBY32767);
881  *dst = SDL_SwapFloatLE(val);
882  }
883 
884  cvt->len_cvt *= 2;
885  if (cvt->filters[++cvt->filter_index]) {
886  cvt->filters[cvt->filter_index] (cvt, AUDIO_F32LSB);
887  }
888 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_SwapFloatLE
#define SDL_SwapFloatLE(X)
Definition: SDL_endian.h:214
val
GLuint GLfloat * val
Definition: SDL_opengl_glext.h:1492
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
AUDIO_F32LSB
#define AUDIO_F32LSB
Definition: SDL_audio.h:112
DIVBY32767
#define DIVBY32767
Definition: SDL_audiotypecvt.c:53
i
return Display return Display Bool Bool int int int return Display XEvent Bool(*) XPointer return Display return Display Drawable _Xconst char unsigned int unsigned int return Display Pixmap Pixmap XColor XColor unsigned int unsigned int return Display _Xconst char char int char return Display Visual unsigned int int int char unsigned int unsigned int in i)
Definition: SDL_x11sym.h:42
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
Uint16
uint16_t Uint16
An unsigned 16-bit integer type.
Definition: SDL_stdinc.h:147
SDL_SwapLE16
#define SDL_SwapLE16(X)
Definition: SDL_endian.h:211
src
GLenum src
Definition: SDL_opengl_glext.h:1737
Sint16
int16_t Sint16
A signed 16-bit integer type.
Definition: SDL_stdinc.h:143
static void SDL_Convert_S16LSB_to_F32MSB ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 891 of file SDL_audiotypecvt.c.

References AUDIO_F32MSB, SDL_AudioCVT::buf, DIVBY32767, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, i, SDL_AudioCVT::len_cvt, SDL_SwapFloatBE, SDL_SwapLE16, and SDLCALL.

892 {
893  int i;
894  const Uint16 *src;
895  float *dst;
896 
897 #if DEBUG_CONVERT
898  fprintf(stderr, "Converting AUDIO_S16LSB to AUDIO_F32MSB.\n");
899 #endif
900 
901  src = ((const Uint16 *) (cvt->buf + cvt->len_cvt)) - 1;
902  dst = ((float *) (cvt->buf + cvt->len_cvt * 2)) - 1;
903  for (i = cvt->len_cvt / sizeof (Uint16); i; --i, --src, --dst) {
904  const float val = (((float) ((Sint16) SDL_SwapLE16(*src))) * DIVBY32767);
905  *dst = SDL_SwapFloatBE(val);
906  }
907 
908  cvt->len_cvt *= 2;
909  if (cvt->filters[++cvt->filter_index]) {
910  cvt->filters[cvt->filter_index] (cvt, AUDIO_F32MSB);
911  }
912 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
SDL_SwapFloatBE
#define SDL_SwapFloatBE(X)
Definition: SDL_endian.h:218
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
AUDIO_F32MSB
#define AUDIO_F32MSB
Definition: SDL_audio.h:113
val
GLuint GLfloat * val
Definition: SDL_opengl_glext.h:1492
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
DIVBY32767
#define DIVBY32767
Definition: SDL_audiotypecvt.c:53
i
return Display return Display Bool Bool int int int return Display XEvent Bool(*) XPointer return Display return Display Drawable _Xconst char unsigned int unsigned int return Display Pixmap Pixmap XColor XColor unsigned int unsigned int return Display _Xconst char char int char return Display Visual unsigned int int int char unsigned int unsigned int in i)
Definition: SDL_x11sym.h:42
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
Uint16
uint16_t Uint16
An unsigned 16-bit integer type.
Definition: SDL_stdinc.h:147
SDL_SwapLE16
#define SDL_SwapLE16(X)
Definition: SDL_endian.h:211
src
GLenum src
Definition: SDL_opengl_glext.h:1737
Sint16
int16_t Sint16
A signed 16-bit integer type.
Definition: SDL_stdinc.h:143
static void SDL_Convert_S16LSB_to_S16MSB ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 796 of file SDL_audiotypecvt.c.

References AUDIO_S16MSB, SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, i, SDL_AudioCVT::len_cvt, SDL_SwapBE16, SDL_SwapLE16, and SDLCALL.

797 {
798  int i;
799  const Uint16 *src;
800  Sint16 *dst;
801 
802 #if DEBUG_CONVERT
803  fprintf(stderr, "Converting AUDIO_S16LSB to AUDIO_S16MSB.\n");
804 #endif
805 
806  src = (const Uint16 *) cvt->buf;
807  dst = (Sint16 *) cvt->buf;
808  for (i = cvt->len_cvt / sizeof (Uint16); i; --i, ++src, ++dst) {
809  const Sint16 val = ((Sint16) SDL_SwapLE16(*src));
810  *dst = ((Sint16) SDL_SwapBE16(val));
811  }
812 
813  if (cvt->filters[++cvt->filter_index]) {
814  cvt->filters[cvt->filter_index] (cvt, AUDIO_S16MSB);
815  }
816 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_SwapBE16
#define SDL_SwapBE16(X)
Definition: SDL_endian.h:215
val
GLuint GLfloat * val
Definition: SDL_opengl_glext.h:1492
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
i
return Display return Display Bool Bool int int int return Display XEvent Bool(*) XPointer return Display return Display Drawable _Xconst char unsigned int unsigned int return Display Pixmap Pixmap XColor XColor unsigned int unsigned int return Display _Xconst char char int char return Display Visual unsigned int int int char unsigned int unsigned int in i)
Definition: SDL_x11sym.h:42
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
AUDIO_S16MSB
#define AUDIO_S16MSB
Definition: SDL_audio.h:94
Uint16
uint16_t Uint16
An unsigned 16-bit integer type.
Definition: SDL_stdinc.h:147
SDL_SwapLE16
#define SDL_SwapLE16(X)
Definition: SDL_endian.h:211
src
GLenum src
Definition: SDL_opengl_glext.h:1737
Sint16
int16_t Sint16
A signed 16-bit integer type.
Definition: SDL_stdinc.h:143
static void SDL_Convert_S16LSB_to_S32LSB ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 819 of file SDL_audiotypecvt.c.

References AUDIO_S32LSB, SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, i, SDL_AudioCVT::len_cvt, SDL_SwapLE16, SDL_SwapLE32, and SDLCALL.

820 {
821  int i;
822  const Uint16 *src;
823  Sint32 *dst;
824 
825 #if DEBUG_CONVERT
826  fprintf(stderr, "Converting AUDIO_S16LSB to AUDIO_S32LSB.\n");
827 #endif
828 
829  src = ((const Uint16 *) (cvt->buf + cvt->len_cvt)) - 1;
830  dst = ((Sint32 *) (cvt->buf + cvt->len_cvt * 2)) - 1;
831  for (i = cvt->len_cvt / sizeof (Uint16); i; --i, --src, --dst) {
832  const Sint32 val = (((Sint32) ((Sint16) SDL_SwapLE16(*src))) << 16);
833  *dst = ((Sint32) SDL_SwapLE32(val));
834  }
835 
836  cvt->len_cvt *= 2;
837  if (cvt->filters[++cvt->filter_index]) {
838  cvt->filters[cvt->filter_index] (cvt, AUDIO_S32LSB);
839  }
840 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
val
GLuint GLfloat * val
Definition: SDL_opengl_glext.h:1492
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
SDL_SwapLE32
#define SDL_SwapLE32(X)
Definition: SDL_endian.h:212
AUDIO_S32LSB
#define AUDIO_S32LSB
Definition: SDL_audio.h:103
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
i
return Display return Display Bool Bool int int int return Display XEvent Bool(*) XPointer return Display return Display Drawable _Xconst char unsigned int unsigned int return Display Pixmap Pixmap XColor XColor unsigned int unsigned int return Display _Xconst char char int char return Display Visual unsigned int int int char unsigned int unsigned int in i)
Definition: SDL_x11sym.h:42
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
Uint16
uint16_t Uint16
An unsigned 16-bit integer type.
Definition: SDL_stdinc.h:147
SDL_SwapLE16
#define SDL_SwapLE16(X)
Definition: SDL_endian.h:211
src
GLenum src
Definition: SDL_opengl_glext.h:1737
Sint16
int16_t Sint16
A signed 16-bit integer type.
Definition: SDL_stdinc.h:143
static void SDL_Convert_S16LSB_to_S32MSB ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 843 of file SDL_audiotypecvt.c.

References AUDIO_S32MSB, SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, i, SDL_AudioCVT::len_cvt, SDL_SwapBE32, SDL_SwapLE16, and SDLCALL.

844 {
845  int i;
846  const Uint16 *src;
847  Sint32 *dst;
848 
849 #if DEBUG_CONVERT
850  fprintf(stderr, "Converting AUDIO_S16LSB to AUDIO_S32MSB.\n");
851 #endif
852 
853  src = ((const Uint16 *) (cvt->buf + cvt->len_cvt)) - 1;
854  dst = ((Sint32 *) (cvt->buf + cvt->len_cvt * 2)) - 1;
855  for (i = cvt->len_cvt / sizeof (Uint16); i; --i, --src, --dst) {
856  const Sint32 val = (((Sint32) ((Sint16) SDL_SwapLE16(*src))) << 16);
857  *dst = ((Sint32) SDL_SwapBE32(val));
858  }
859 
860  cvt->len_cvt *= 2;
861  if (cvt->filters[++cvt->filter_index]) {
862  cvt->filters[cvt->filter_index] (cvt, AUDIO_S32MSB);
863  }
864 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
AUDIO_S32MSB
#define AUDIO_S32MSB
Definition: SDL_audio.h:104
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_SwapBE32
#define SDL_SwapBE32(X)
Definition: SDL_endian.h:216
val
GLuint GLfloat * val
Definition: SDL_opengl_glext.h:1492
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
i
return Display return Display Bool Bool int int int return Display XEvent Bool(*) XPointer return Display return Display Drawable _Xconst char unsigned int unsigned int return Display Pixmap Pixmap XColor XColor unsigned int unsigned int return Display _Xconst char char int char return Display Visual unsigned int int int char unsigned int unsigned int in i)
Definition: SDL_x11sym.h:42
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
Uint16
uint16_t Uint16
An unsigned 16-bit integer type.
Definition: SDL_stdinc.h:147
SDL_SwapLE16
#define SDL_SwapLE16(X)
Definition: SDL_endian.h:211
src
GLenum src
Definition: SDL_opengl_glext.h:1737
Sint16
int16_t Sint16
A signed 16-bit integer type.
Definition: SDL_stdinc.h:143
static void SDL_Convert_S16LSB_to_S8 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 726 of file SDL_audiotypecvt.c.

References AUDIO_S8, SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, i, SDL_AudioCVT::len_cvt, SDL_SwapLE16, and SDLCALL.

727 {
728  int i;
729  const Uint16 *src;
730  Sint8 *dst;
731 
732 #if DEBUG_CONVERT
733  fprintf(stderr, "Converting AUDIO_S16LSB to AUDIO_S8.\n");
734 #endif
735 
736  src = (const Uint16 *) cvt->buf;
737  dst = (Sint8 *) cvt->buf;
738  for (i = cvt->len_cvt / sizeof (Uint16); i; --i, ++src, ++dst) {
739  const Sint8 val = ((Sint8) (((Sint16) SDL_SwapLE16(*src)) >> 8));
740  *dst = ((Sint8) val);
741  }
742 
743  cvt->len_cvt /= 2;
744  if (cvt->filters[++cvt->filter_index]) {
745  cvt->filters[cvt->filter_index] (cvt, AUDIO_S8);
746  }
747 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
val
GLuint GLfloat * val
Definition: SDL_opengl_glext.h:1492
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
Sint8
int8_t Sint8
A signed 8-bit integer type.
Definition: SDL_stdinc.h:135
i
return Display return Display Bool Bool int int int return Display XEvent Bool(*) XPointer return Display return Display Drawable _Xconst char unsigned int unsigned int return Display Pixmap Pixmap XColor XColor unsigned int unsigned int return Display _Xconst char char int char return Display Visual unsigned int int int char unsigned int unsigned int in i)
Definition: SDL_x11sym.h:42
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
Uint16
uint16_t Uint16
An unsigned 16-bit integer type.
Definition: SDL_stdinc.h:147
SDL_SwapLE16
#define SDL_SwapLE16(X)
Definition: SDL_endian.h:211
AUDIO_S8
#define AUDIO_S8
Definition: SDL_audio.h:90
src
GLenum src
Definition: SDL_opengl_glext.h:1737
Sint16
int16_t Sint16
A signed 16-bit integer type.
Definition: SDL_stdinc.h:143
static void SDL_Convert_S16LSB_to_U16LSB ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 750 of file SDL_audiotypecvt.c.

References AUDIO_U16LSB, SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, i, SDL_AudioCVT::len_cvt, SDL_SwapLE16, and SDLCALL.

751 {
752  int i;
753  const Uint16 *src;
754  Uint16 *dst;
755 
756 #if DEBUG_CONVERT
757  fprintf(stderr, "Converting AUDIO_S16LSB to AUDIO_U16LSB.\n");
758 #endif
759 
760  src = (const Uint16 *) cvt->buf;
761  dst = (Uint16 *) cvt->buf;
762  for (i = cvt->len_cvt / sizeof (Uint16); i; --i, ++src, ++dst) {
763  const Uint16 val = ((((Sint16) SDL_SwapLE16(*src))) ^ 0x8000);
764  *dst = SDL_SwapLE16(val);
765  }
766 
767  if (cvt->filters[++cvt->filter_index]) {
768  cvt->filters[cvt->filter_index] (cvt, AUDIO_U16LSB);
769  }
770 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
AUDIO_U16LSB
#define AUDIO_U16LSB
Definition: SDL_audio.h:91
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
val
GLuint GLfloat * val
Definition: SDL_opengl_glext.h:1492
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
i
return Display return Display Bool Bool int int int return Display XEvent Bool(*) XPointer return Display return Display Drawable _Xconst char unsigned int unsigned int return Display Pixmap Pixmap XColor XColor unsigned int unsigned int return Display _Xconst char char int char return Display Visual unsigned int int int char unsigned int unsigned int in i)
Definition: SDL_x11sym.h:42
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
Uint16
uint16_t Uint16
An unsigned 16-bit integer type.
Definition: SDL_stdinc.h:147
SDL_SwapLE16
#define SDL_SwapLE16(X)
Definition: SDL_endian.h:211
src
GLenum src
Definition: SDL_opengl_glext.h:1737
Sint16
int16_t Sint16
A signed 16-bit integer type.
Definition: SDL_stdinc.h:143
static void SDL_Convert_S16LSB_to_U16MSB ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 773 of file SDL_audiotypecvt.c.

References AUDIO_U16MSB, SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, i, SDL_AudioCVT::len_cvt, SDL_SwapBE16, SDL_SwapLE16, and SDLCALL.

774 {
775  int i;
776  const Uint16 *src;
777  Uint16 *dst;
778 
779 #if DEBUG_CONVERT
780  fprintf(stderr, "Converting AUDIO_S16LSB to AUDIO_U16MSB.\n");
781 #endif
782 
783  src = (const Uint16 *) cvt->buf;
784  dst = (Uint16 *) cvt->buf;
785  for (i = cvt->len_cvt / sizeof (Uint16); i; --i, ++src, ++dst) {
786  const Uint16 val = ((((Sint16) SDL_SwapLE16(*src))) ^ 0x8000);
787  *dst = SDL_SwapBE16(val);
788  }
789 
790  if (cvt->filters[++cvt->filter_index]) {
791  cvt->filters[cvt->filter_index] (cvt, AUDIO_U16MSB);
792  }
793 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_SwapBE16
#define SDL_SwapBE16(X)
Definition: SDL_endian.h:215
val
GLuint GLfloat * val
Definition: SDL_opengl_glext.h:1492
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
i
return Display return Display Bool Bool int int int return Display XEvent Bool(*) XPointer return Display return Display Drawable _Xconst char unsigned int unsigned int return Display Pixmap Pixmap XColor XColor unsigned int unsigned int return Display _Xconst char char int char return Display Visual unsigned int int int char unsigned int unsigned int in i)
Definition: SDL_x11sym.h:42
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
Uint16
uint16_t Uint16
An unsigned 16-bit integer type.
Definition: SDL_stdinc.h:147
SDL_SwapLE16
#define SDL_SwapLE16(X)
Definition: SDL_endian.h:211
src
GLenum src
Definition: SDL_opengl_glext.h:1737
Sint16
int16_t Sint16
A signed 16-bit integer type.
Definition: SDL_stdinc.h:143
AUDIO_U16MSB
#define AUDIO_U16MSB
Definition: SDL_audio.h:93
static void SDL_Convert_S16LSB_to_U8 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 702 of file SDL_audiotypecvt.c.

References AUDIO_U8, SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, i, SDL_AudioCVT::len_cvt, SDL_SwapLE16, and SDLCALL.

703 {
704  int i;
705  const Uint16 *src;
706  Uint8 *dst;
707 
708 #if DEBUG_CONVERT
709  fprintf(stderr, "Converting AUDIO_S16LSB to AUDIO_U8.\n");
710 #endif
711 
712  src = (const Uint16 *) cvt->buf;
713  dst = (Uint8 *) cvt->buf;
714  for (i = cvt->len_cvt / sizeof (Uint16); i; --i, ++src, ++dst) {
715  const Uint8 val = ((Uint8) (((((Sint16) SDL_SwapLE16(*src))) ^ 0x8000) >> 8));
716  *dst = val;
717  }
718 
719  cvt->len_cvt /= 2;
720  if (cvt->filters[++cvt->filter_index]) {
721  cvt->filters[cvt->filter_index] (cvt, AUDIO_U8);
722  }
723 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
AUDIO_U8
#define AUDIO_U8
Definition: SDL_audio.h:89
val
GLuint GLfloat * val
Definition: SDL_opengl_glext.h:1492
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
Uint8
uint8_t Uint8
An unsigned 8-bit integer type.
Definition: SDL_stdinc.h:139
i
return Display return Display Bool Bool int int int return Display XEvent Bool(*) XPointer return Display return Display Drawable _Xconst char unsigned int unsigned int return Display Pixmap Pixmap XColor XColor unsigned int unsigned int return Display _Xconst char char int char return Display Visual unsigned int int int char unsigned int unsigned int in i)
Definition: SDL_x11sym.h:42
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
Uint16
uint16_t Uint16
An unsigned 16-bit integer type.
Definition: SDL_stdinc.h:147
SDL_SwapLE16
#define SDL_SwapLE16(X)
Definition: SDL_endian.h:211
src
GLenum src
Definition: SDL_opengl_glext.h:1737
Sint16
int16_t Sint16
A signed 16-bit integer type.
Definition: SDL_stdinc.h:143
static void SDL_Convert_S16MSB_to_F32LSB ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 1293 of file SDL_audiotypecvt.c.

References AUDIO_F32LSB, SDL_AudioCVT::buf, DIVBY32767, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, i, SDL_AudioCVT::len_cvt, SDL_SwapBE16, SDL_SwapFloatLE, and SDLCALL.

1294 {
1295  int i;
1296  const Uint16 *src;
1297  float *dst;
1298 
1299 #if DEBUG_CONVERT
1300  fprintf(stderr, "Converting AUDIO_S16MSB to AUDIO_F32LSB.\n");
1301 #endif
1302 
1303  src = ((const Uint16 *) (cvt->buf + cvt->len_cvt)) - 1;
1304  dst = ((float *) (cvt->buf + cvt->len_cvt * 2)) - 1;
1305  for (i = cvt->len_cvt / sizeof (Uint16); i; --i, --src, --dst) {
1306  const float val = (((float) ((Sint16) SDL_SwapBE16(*src))) * DIVBY32767);
1307  *dst = SDL_SwapFloatLE(val);
1308  }
1309 
1310  cvt->len_cvt *= 2;
1311  if (cvt->filters[++cvt->filter_index]) {
1312  cvt->filters[cvt->filter_index] (cvt, AUDIO_F32LSB);
1313  }
1314 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_SwapFloatLE
#define SDL_SwapFloatLE(X)
Definition: SDL_endian.h:214
SDL_SwapBE16
#define SDL_SwapBE16(X)
Definition: SDL_endian.h:215
val
GLuint GLfloat * val
Definition: SDL_opengl_glext.h:1492
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
AUDIO_F32LSB
#define AUDIO_F32LSB
Definition: SDL_audio.h:112
DIVBY32767
#define DIVBY32767
Definition: SDL_audiotypecvt.c:53
i
return Display return Display Bool Bool int int int return Display XEvent Bool(*) XPointer return Display return Display Drawable _Xconst char unsigned int unsigned int return Display Pixmap Pixmap XColor XColor unsigned int unsigned int return Display _Xconst char char int char return Display Visual unsigned int int int char unsigned int unsigned int in i)
Definition: SDL_x11sym.h:42
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
Uint16
uint16_t Uint16
An unsigned 16-bit integer type.
Definition: SDL_stdinc.h:147
src
GLenum src
Definition: SDL_opengl_glext.h:1737
Sint16
int16_t Sint16
A signed 16-bit integer type.
Definition: SDL_stdinc.h:143
static void SDL_Convert_S16MSB_to_F32MSB ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 1317 of file SDL_audiotypecvt.c.

References AUDIO_F32MSB, SDL_AudioCVT::buf, DIVBY32767, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, i, SDL_AudioCVT::len_cvt, SDL_SwapBE16, SDL_SwapFloatBE, and SDLCALL.

1318 {
1319  int i;
1320  const Uint16 *src;
1321  float *dst;
1322 
1323 #if DEBUG_CONVERT
1324  fprintf(stderr, "Converting AUDIO_S16MSB to AUDIO_F32MSB.\n");
1325 #endif
1326 
1327  src = ((const Uint16 *) (cvt->buf + cvt->len_cvt)) - 1;
1328  dst = ((float *) (cvt->buf + cvt->len_cvt * 2)) - 1;
1329  for (i = cvt->len_cvt / sizeof (Uint16); i; --i, --src, --dst) {
1330  const float val = (((float) ((Sint16) SDL_SwapBE16(*src))) * DIVBY32767);
1331  *dst = SDL_SwapFloatBE(val);
1332  }
1333 
1334  cvt->len_cvt *= 2;
1335  if (cvt->filters[++cvt->filter_index]) {
1336  cvt->filters[cvt->filter_index] (cvt, AUDIO_F32MSB);
1337  }
1338 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
SDL_SwapFloatBE
#define SDL_SwapFloatBE(X)
Definition: SDL_endian.h:218
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_SwapBE16
#define SDL_SwapBE16(X)
Definition: SDL_endian.h:215
AUDIO_F32MSB
#define AUDIO_F32MSB
Definition: SDL_audio.h:113
val
GLuint GLfloat * val
Definition: SDL_opengl_glext.h:1492
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
DIVBY32767
#define DIVBY32767
Definition: SDL_audiotypecvt.c:53
i
return Display return Display Bool Bool int int int return Display XEvent Bool(*) XPointer return Display return Display Drawable _Xconst char unsigned int unsigned int return Display Pixmap Pixmap XColor XColor unsigned int unsigned int return Display _Xconst char char int char return Display Visual unsigned int int int char unsigned int unsigned int in i)
Definition: SDL_x11sym.h:42
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
Uint16
uint16_t Uint16
An unsigned 16-bit integer type.
Definition: SDL_stdinc.h:147
src
GLenum src
Definition: SDL_opengl_glext.h:1737
Sint16
int16_t Sint16
A signed 16-bit integer type.
Definition: SDL_stdinc.h:143
static void SDL_Convert_S16MSB_to_S16LSB ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 1199 of file SDL_audiotypecvt.c.

References AUDIO_S16LSB, SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, i, SDL_AudioCVT::len_cvt, SDL_SwapBE16, SDL_SwapLE16, and SDLCALL.

1200 {
1201  int i;
1202  const Uint16 *src;
1203  Sint16 *dst;
1204 
1205 #if DEBUG_CONVERT
1206  fprintf(stderr, "Converting AUDIO_S16MSB to AUDIO_S16LSB.\n");
1207 #endif
1208 
1209  src = (const Uint16 *) cvt->buf;
1210  dst = (Sint16 *) cvt->buf;
1211  for (i = cvt->len_cvt / sizeof (Uint16); i; --i, ++src, ++dst) {
1212  const Sint16 val = ((Sint16) SDL_SwapBE16(*src));
1213  *dst = ((Sint16) SDL_SwapLE16(val));
1214  }
1215 
1216  if (cvt->filters[++cvt->filter_index]) {
1217  cvt->filters[cvt->filter_index] (cvt, AUDIO_S16LSB);
1218  }
1219 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_SwapBE16
#define SDL_SwapBE16(X)
Definition: SDL_endian.h:215
val
GLuint GLfloat * val
Definition: SDL_opengl_glext.h:1492
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
i
return Display return Display Bool Bool int int int return Display XEvent Bool(*) XPointer return Display return Display Drawable _Xconst char unsigned int unsigned int return Display Pixmap Pixmap XColor XColor unsigned int unsigned int return Display _Xconst char char int char return Display Visual unsigned int int int char unsigned int unsigned int in i)
Definition: SDL_x11sym.h:42
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
AUDIO_S16LSB
#define AUDIO_S16LSB
Definition: SDL_audio.h:92
Uint16
uint16_t Uint16
An unsigned 16-bit integer type.
Definition: SDL_stdinc.h:147
SDL_SwapLE16
#define SDL_SwapLE16(X)
Definition: SDL_endian.h:211
src
GLenum src
Definition: SDL_opengl_glext.h:1737
Sint16
int16_t Sint16
A signed 16-bit integer type.
Definition: SDL_stdinc.h:143
static void SDL_Convert_S16MSB_to_S32LSB ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 1245 of file SDL_audiotypecvt.c.

References AUDIO_S32LSB, SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, i, SDL_AudioCVT::len_cvt, SDL_SwapBE16, SDL_SwapLE32, and SDLCALL.

1246 {
1247  int i;
1248  const Uint16 *src;
1249  Sint32 *dst;
1250 
1251 #if DEBUG_CONVERT
1252  fprintf(stderr, "Converting AUDIO_S16MSB to AUDIO_S32LSB.\n");
1253 #endif
1254 
1255  src = ((const Uint16 *) (cvt->buf + cvt->len_cvt)) - 1;
1256  dst = ((Sint32 *) (cvt->buf + cvt->len_cvt * 2)) - 1;
1257  for (i = cvt->len_cvt / sizeof (Uint16); i; --i, --src, --dst) {
1258  const Sint32 val = (((Sint32) ((Sint16) SDL_SwapBE16(*src))) << 16);
1259  *dst = ((Sint32) SDL_SwapLE32(val));
1260  }
1261 
1262  cvt->len_cvt *= 2;
1263  if (cvt->filters[++cvt->filter_index]) {
1264  cvt->filters[cvt->filter_index] (cvt, AUDIO_S32LSB);
1265  }
1266 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_SwapBE16
#define SDL_SwapBE16(X)
Definition: SDL_endian.h:215
val
GLuint GLfloat * val
Definition: SDL_opengl_glext.h:1492
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
SDL_SwapLE32
#define SDL_SwapLE32(X)
Definition: SDL_endian.h:212
AUDIO_S32LSB
#define AUDIO_S32LSB
Definition: SDL_audio.h:103
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
i
return Display return Display Bool Bool int int int return Display XEvent Bool(*) XPointer return Display return Display Drawable _Xconst char unsigned int unsigned int return Display Pixmap Pixmap XColor XColor unsigned int unsigned int return Display _Xconst char char int char return Display Visual unsigned int int int char unsigned int unsigned int in i)
Definition: SDL_x11sym.h:42
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
Uint16
uint16_t Uint16
An unsigned 16-bit integer type.
Definition: SDL_stdinc.h:147
src
GLenum src
Definition: SDL_opengl_glext.h:1737
Sint16
int16_t Sint16
A signed 16-bit integer type.
Definition: SDL_stdinc.h:143
static void SDL_Convert_S16MSB_to_S32MSB ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 1269 of file SDL_audiotypecvt.c.

References AUDIO_S32MSB, SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, i, SDL_AudioCVT::len_cvt, SDL_SwapBE16, SDL_SwapBE32, and SDLCALL.

1270 {
1271  int i;
1272  const Uint16 *src;
1273  Sint32 *dst;
1274 
1275 #if DEBUG_CONVERT
1276  fprintf(stderr, "Converting AUDIO_S16MSB to AUDIO_S32MSB.\n");
1277 #endif
1278 
1279  src = ((const Uint16 *) (cvt->buf + cvt->len_cvt)) - 1;
1280  dst = ((Sint32 *) (cvt->buf + cvt->len_cvt * 2)) - 1;
1281  for (i = cvt->len_cvt / sizeof (Uint16); i; --i, --src, --dst) {
1282  const Sint32 val = (((Sint32) ((Sint16) SDL_SwapBE16(*src))) << 16);
1283  *dst = ((Sint32) SDL_SwapBE32(val));
1284  }
1285 
1286  cvt->len_cvt *= 2;
1287  if (cvt->filters[++cvt->filter_index]) {
1288  cvt->filters[cvt->filter_index] (cvt, AUDIO_S32MSB);
1289  }
1290 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
AUDIO_S32MSB
#define AUDIO_S32MSB
Definition: SDL_audio.h:104
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_SwapBE32
#define SDL_SwapBE32(X)
Definition: SDL_endian.h:216
SDL_SwapBE16
#define SDL_SwapBE16(X)
Definition: SDL_endian.h:215
val
GLuint GLfloat * val
Definition: SDL_opengl_glext.h:1492
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
i
return Display return Display Bool Bool int int int return Display XEvent Bool(*) XPointer return Display return Display Drawable _Xconst char unsigned int unsigned int return Display Pixmap Pixmap XColor XColor unsigned int unsigned int return Display _Xconst char char int char return Display Visual unsigned int int int char unsigned int unsigned int in i)
Definition: SDL_x11sym.h:42
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
Uint16
uint16_t Uint16
An unsigned 16-bit integer type.
Definition: SDL_stdinc.h:147
src
GLenum src
Definition: SDL_opengl_glext.h:1737
Sint16
int16_t Sint16
A signed 16-bit integer type.
Definition: SDL_stdinc.h:143
static void SDL_Convert_S16MSB_to_S8 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 1152 of file SDL_audiotypecvt.c.

References AUDIO_S8, SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, i, SDL_AudioCVT::len_cvt, SDL_SwapBE16, and SDLCALL.

1153 {
1154  int i;
1155  const Uint16 *src;
1156  Sint8 *dst;
1157 
1158 #if DEBUG_CONVERT
1159  fprintf(stderr, "Converting AUDIO_S16MSB to AUDIO_S8.\n");
1160 #endif
1161 
1162  src = (const Uint16 *) cvt->buf;
1163  dst = (Sint8 *) cvt->buf;
1164  for (i = cvt->len_cvt / sizeof (Uint16); i; --i, ++src, ++dst) {
1165  const Sint8 val = ((Sint8) (((Sint16) SDL_SwapBE16(*src)) >> 8));
1166  *dst = ((Sint8) val);
1167  }
1168 
1169  cvt->len_cvt /= 2;
1170  if (cvt->filters[++cvt->filter_index]) {
1171  cvt->filters[cvt->filter_index] (cvt, AUDIO_S8);
1172  }
1173 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_SwapBE16
#define SDL_SwapBE16(X)
Definition: SDL_endian.h:215
val
GLuint GLfloat * val
Definition: SDL_opengl_glext.h:1492
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
Sint8
int8_t Sint8
A signed 8-bit integer type.
Definition: SDL_stdinc.h:135
i
return Display return Display Bool Bool int int int return Display XEvent Bool(*) XPointer return Display return Display Drawable _Xconst char unsigned int unsigned int return Display Pixmap Pixmap XColor XColor unsigned int unsigned int return Display _Xconst char char int char return Display Visual unsigned int int int char unsigned int unsigned int in i)
Definition: SDL_x11sym.h:42
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
Uint16
uint16_t Uint16
An unsigned 16-bit integer type.
Definition: SDL_stdinc.h:147
AUDIO_S8
#define AUDIO_S8
Definition: SDL_audio.h:90
src
GLenum src
Definition: SDL_opengl_glext.h:1737
Sint16
int16_t Sint16
A signed 16-bit integer type.
Definition: SDL_stdinc.h:143
static void SDL_Convert_S16MSB_to_U16LSB ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 1176 of file SDL_audiotypecvt.c.

References AUDIO_U16LSB, SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, i, SDL_AudioCVT::len_cvt, SDL_SwapBE16, SDL_SwapLE16, and SDLCALL.

1177 {
1178  int i;
1179  const Uint16 *src;
1180  Uint16 *dst;
1181 
1182 #if DEBUG_CONVERT
1183  fprintf(stderr, "Converting AUDIO_S16MSB to AUDIO_U16LSB.\n");
1184 #endif
1185 
1186  src = (const Uint16 *) cvt->buf;
1187  dst = (Uint16 *) cvt->buf;
1188  for (i = cvt->len_cvt / sizeof (Uint16); i; --i, ++src, ++dst) {
1189  const Uint16 val = ((((Sint16) SDL_SwapBE16(*src))) ^ 0x8000);
1190  *dst = SDL_SwapLE16(val);
1191  }
1192 
1193  if (cvt->filters[++cvt->filter_index]) {
1194  cvt->filters[cvt->filter_index] (cvt, AUDIO_U16LSB);
1195  }
1196 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
AUDIO_U16LSB
#define AUDIO_U16LSB
Definition: SDL_audio.h:91
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_SwapBE16
#define SDL_SwapBE16(X)
Definition: SDL_endian.h:215
val
GLuint GLfloat * val
Definition: SDL_opengl_glext.h:1492
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
i
return Display return Display Bool Bool int int int return Display XEvent Bool(*) XPointer return Display return Display Drawable _Xconst char unsigned int unsigned int return Display Pixmap Pixmap XColor XColor unsigned int unsigned int return Display _Xconst char char int char return Display Visual unsigned int int int char unsigned int unsigned int in i)
Definition: SDL_x11sym.h:42
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
Uint16
uint16_t Uint16
An unsigned 16-bit integer type.
Definition: SDL_stdinc.h:147
SDL_SwapLE16
#define SDL_SwapLE16(X)
Definition: SDL_endian.h:211
src
GLenum src
Definition: SDL_opengl_glext.h:1737
Sint16
int16_t Sint16
A signed 16-bit integer type.
Definition: SDL_stdinc.h:143
static void SDL_Convert_S16MSB_to_U16MSB ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 1222 of file SDL_audiotypecvt.c.

References AUDIO_U16MSB, SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, i, SDL_AudioCVT::len_cvt, SDL_SwapBE16, and SDLCALL.

1223 {
1224  int i;
1225  const Uint16 *src;
1226  Uint16 *dst;
1227 
1228 #if DEBUG_CONVERT
1229  fprintf(stderr, "Converting AUDIO_S16MSB to AUDIO_U16MSB.\n");
1230 #endif
1231 
1232  src = (const Uint16 *) cvt->buf;
1233  dst = (Uint16 *) cvt->buf;
1234  for (i = cvt->len_cvt / sizeof (Uint16); i; --i, ++src, ++dst) {
1235  const Uint16 val = ((((Sint16) SDL_SwapBE16(*src))) ^ 0x8000);
1236  *dst = SDL_SwapBE16(val);
1237  }
1238 
1239  if (cvt->filters[++cvt->filter_index]) {
1240  cvt->filters[cvt->filter_index] (cvt, AUDIO_U16MSB);
1241  }
1242 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_SwapBE16
#define SDL_SwapBE16(X)
Definition: SDL_endian.h:215
val
GLuint GLfloat * val
Definition: SDL_opengl_glext.h:1492
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
i
return Display return Display Bool Bool int int int return Display XEvent Bool(*) XPointer return Display return Display Drawable _Xconst char unsigned int unsigned int return Display Pixmap Pixmap XColor XColor unsigned int unsigned int return Display _Xconst char char int char return Display Visual unsigned int int int char unsigned int unsigned int in i)
Definition: SDL_x11sym.h:42
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
Uint16
uint16_t Uint16
An unsigned 16-bit integer type.
Definition: SDL_stdinc.h:147
src
GLenum src
Definition: SDL_opengl_glext.h:1737
Sint16
int16_t Sint16
A signed 16-bit integer type.
Definition: SDL_stdinc.h:143
AUDIO_U16MSB
#define AUDIO_U16MSB
Definition: SDL_audio.h:93
static void SDL_Convert_S16MSB_to_U8 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 1128 of file SDL_audiotypecvt.c.

References AUDIO_U8, SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, i, SDL_AudioCVT::len_cvt, SDL_SwapBE16, and SDLCALL.

1129 {
1130  int i;
1131  const Uint16 *src;
1132  Uint8 *dst;
1133 
1134 #if DEBUG_CONVERT
1135  fprintf(stderr, "Converting AUDIO_S16MSB to AUDIO_U8.\n");
1136 #endif
1137 
1138  src = (const Uint16 *) cvt->buf;
1139  dst = (Uint8 *) cvt->buf;
1140  for (i = cvt->len_cvt / sizeof (Uint16); i; --i, ++src, ++dst) {
1141  const Uint8 val = ((Uint8) (((((Sint16) SDL_SwapBE16(*src))) ^ 0x8000) >> 8));
1142  *dst = val;
1143  }
1144 
1145  cvt->len_cvt /= 2;
1146  if (cvt->filters[++cvt->filter_index]) {
1147  cvt->filters[cvt->filter_index] (cvt, AUDIO_U8);
1148  }
1149 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_SwapBE16
#define SDL_SwapBE16(X)
Definition: SDL_endian.h:215
AUDIO_U8
#define AUDIO_U8
Definition: SDL_audio.h:89
val
GLuint GLfloat * val
Definition: SDL_opengl_glext.h:1492
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
Uint8
uint8_t Uint8
An unsigned 8-bit integer type.
Definition: SDL_stdinc.h:139
i
return Display return Display Bool Bool int int int return Display XEvent Bool(*) XPointer return Display return Display Drawable _Xconst char unsigned int unsigned int return Display Pixmap Pixmap XColor XColor unsigned int unsigned int return Display _Xconst char char int char return Display Visual unsigned int int int char unsigned int unsigned int in i)
Definition: SDL_x11sym.h:42
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
Uint16
uint16_t Uint16
An unsigned 16-bit integer type.
Definition: SDL_stdinc.h:147
src
GLenum src
Definition: SDL_opengl_glext.h:1737
Sint16
int16_t Sint16
A signed 16-bit integer type.
Definition: SDL_stdinc.h:143
static void SDL_Convert_S32LSB_to_F32LSB ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 1508 of file SDL_audiotypecvt.c.

References AUDIO_F32LSB, SDL_AudioCVT::buf, DIVBY2147483647, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, i, SDL_AudioCVT::len_cvt, SDL_SwapFloatLE, SDL_SwapLE32, and SDLCALL.

1509 {
1510  int i;
1511  const Uint32 *src;
1512  float *dst;
1513 
1514 #if DEBUG_CONVERT
1515  fprintf(stderr, "Converting AUDIO_S32LSB to AUDIO_F32LSB.\n");
1516 #endif
1517 
1518  src = (const Uint32 *) cvt->buf;
1519  dst = (float *) cvt->buf;
1520  for (i = cvt->len_cvt / sizeof (Uint32); i; --i, ++src, ++dst) {
1521  const float val = (((float) ((Sint32) SDL_SwapLE32(*src))) * DIVBY2147483647);
1522  *dst = SDL_SwapFloatLE(val);
1523  }
1524 
1525  if (cvt->filters[++cvt->filter_index]) {
1526  cvt->filters[cvt->filter_index] (cvt, AUDIO_F32LSB);
1527  }
1528 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
Uint32
uint32_t Uint32
An unsigned 32-bit integer type.
Definition: SDL_stdinc.h:155
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_SwapFloatLE
#define SDL_SwapFloatLE(X)
Definition: SDL_endian.h:214
val
GLuint GLfloat * val
Definition: SDL_opengl_glext.h:1492
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
SDL_SwapLE32
#define SDL_SwapLE32(X)
Definition: SDL_endian.h:212
AUDIO_F32LSB
#define AUDIO_F32LSB
Definition: SDL_audio.h:112
DIVBY2147483647
#define DIVBY2147483647
Definition: SDL_audiotypecvt.c:54
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
i
return Display return Display Bool Bool int int int return Display XEvent Bool(*) XPointer return Display return Display Drawable _Xconst char unsigned int unsigned int return Display Pixmap Pixmap XColor XColor unsigned int unsigned int return Display _Xconst char char int char return Display Visual unsigned int int int char unsigned int unsigned int in i)
Definition: SDL_x11sym.h:42
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Convert_S32LSB_to_F32MSB ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 1531 of file SDL_audiotypecvt.c.

References AUDIO_F32MSB, SDL_AudioCVT::buf, DIVBY2147483647, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, i, SDL_AudioCVT::len_cvt, SDL_SwapFloatBE, SDL_SwapLE32, and SDLCALL.

1532 {
1533  int i;
1534  const Uint32 *src;
1535  float *dst;
1536 
1537 #if DEBUG_CONVERT
1538  fprintf(stderr, "Converting AUDIO_S32LSB to AUDIO_F32MSB.\n");
1539 #endif
1540 
1541  src = (const Uint32 *) cvt->buf;
1542  dst = (float *) cvt->buf;
1543  for (i = cvt->len_cvt / sizeof (Uint32); i; --i, ++src, ++dst) {
1544  const float val = (((float) ((Sint32) SDL_SwapLE32(*src))) * DIVBY2147483647);
1545  *dst = SDL_SwapFloatBE(val);
1546  }
1547 
1548  if (cvt->filters[++cvt->filter_index]) {
1549  cvt->filters[cvt->filter_index] (cvt, AUDIO_F32MSB);
1550  }
1551 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
SDL_SwapFloatBE
#define SDL_SwapFloatBE(X)
Definition: SDL_endian.h:218
Uint32
uint32_t Uint32
An unsigned 32-bit integer type.
Definition: SDL_stdinc.h:155
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
AUDIO_F32MSB
#define AUDIO_F32MSB
Definition: SDL_audio.h:113
val
GLuint GLfloat * val
Definition: SDL_opengl_glext.h:1492
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
SDL_SwapLE32
#define SDL_SwapLE32(X)
Definition: SDL_endian.h:212
DIVBY2147483647
#define DIVBY2147483647
Definition: SDL_audiotypecvt.c:54
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
i
return Display return Display Bool Bool int int int return Display XEvent Bool(*) XPointer return Display return Display Drawable _Xconst char unsigned int unsigned int return Display Pixmap Pixmap XColor XColor unsigned int unsigned int return Display _Xconst char char int char return Display Visual unsigned int int int char unsigned int unsigned int in i)
Definition: SDL_x11sym.h:42
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Convert_S32LSB_to_S16LSB ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 1413 of file SDL_audiotypecvt.c.

References AUDIO_S16LSB, SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, i, SDL_AudioCVT::len_cvt, SDL_SwapLE16, SDL_SwapLE32, and SDLCALL.

1414 {
1415  int i;
1416  const Uint32 *src;
1417  Sint16 *dst;
1418 
1419 #if DEBUG_CONVERT
1420  fprintf(stderr, "Converting AUDIO_S32LSB to AUDIO_S16LSB.\n");
1421 #endif
1422 
1423  src = (const Uint32 *) cvt->buf;
1424  dst = (Sint16 *) cvt->buf;
1425  for (i = cvt->len_cvt / sizeof (Uint32); i; --i, ++src, ++dst) {
1426  const Sint16 val = ((Sint16) (((Sint32) SDL_SwapLE32(*src)) >> 16));
1427  *dst = ((Sint16) SDL_SwapLE16(val));
1428  }
1429 
1430  cvt->len_cvt /= 2;
1431  if (cvt->filters[++cvt->filter_index]) {
1432  cvt->filters[cvt->filter_index] (cvt, AUDIO_S16LSB);
1433  }
1434 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
Uint32
uint32_t Uint32
An unsigned 32-bit integer type.
Definition: SDL_stdinc.h:155
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
val
GLuint GLfloat * val
Definition: SDL_opengl_glext.h:1492
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
SDL_SwapLE32
#define SDL_SwapLE32(X)
Definition: SDL_endian.h:212
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
i
return Display return Display Bool Bool int int int return Display XEvent Bool(*) XPointer return Display return Display Drawable _Xconst char unsigned int unsigned int return Display Pixmap Pixmap XColor XColor unsigned int unsigned int return Display _Xconst char char int char return Display Visual unsigned int int int char unsigned int unsigned int in i)
Definition: SDL_x11sym.h:42
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
AUDIO_S16LSB
#define AUDIO_S16LSB
Definition: SDL_audio.h:92
SDL_SwapLE16
#define SDL_SwapLE16(X)
Definition: SDL_endian.h:211
src
GLenum src
Definition: SDL_opengl_glext.h:1737
Sint16
int16_t Sint16
A signed 16-bit integer type.
Definition: SDL_stdinc.h:143
static void SDL_Convert_S32LSB_to_S16MSB ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 1461 of file SDL_audiotypecvt.c.

References AUDIO_S16MSB, SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, i, SDL_AudioCVT::len_cvt, SDL_SwapBE16, SDL_SwapLE32, and SDLCALL.

1462 {
1463  int i;
1464  const Uint32 *src;
1465  Sint16 *dst;
1466 
1467 #if DEBUG_CONVERT
1468  fprintf(stderr, "Converting AUDIO_S32LSB to AUDIO_S16MSB.\n");
1469 #endif
1470 
1471  src = (const Uint32 *) cvt->buf;
1472  dst = (Sint16 *) cvt->buf;
1473  for (i = cvt->len_cvt / sizeof (Uint32); i; --i, ++src, ++dst) {
1474  const Sint16 val = ((Sint16) (((Sint32) SDL_SwapLE32(*src)) >> 16));
1475  *dst = ((Sint16) SDL_SwapBE16(val));
1476  }
1477 
1478  cvt->len_cvt /= 2;
1479  if (cvt->filters[++cvt->filter_index]) {
1480  cvt->filters[cvt->filter_index] (cvt, AUDIO_S16MSB);
1481  }
1482 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
Uint32
uint32_t Uint32
An unsigned 32-bit integer type.
Definition: SDL_stdinc.h:155
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_SwapBE16
#define SDL_SwapBE16(X)
Definition: SDL_endian.h:215
val
GLuint GLfloat * val
Definition: SDL_opengl_glext.h:1492
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
SDL_SwapLE32
#define SDL_SwapLE32(X)
Definition: SDL_endian.h:212
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
i
return Display return Display Bool Bool int int int return Display XEvent Bool(*) XPointer return Display return Display Drawable _Xconst char unsigned int unsigned int return Display Pixmap Pixmap XColor XColor unsigned int unsigned int return Display _Xconst char char int char return Display Visual unsigned int int int char unsigned int unsigned int in i)
Definition: SDL_x11sym.h:42
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
AUDIO_S16MSB
#define AUDIO_S16MSB
Definition: SDL_audio.h:94
src
GLenum src
Definition: SDL_opengl_glext.h:1737
Sint16
int16_t Sint16
A signed 16-bit integer type.
Definition: SDL_stdinc.h:143
static void SDL_Convert_S32LSB_to_S32MSB ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 1485 of file SDL_audiotypecvt.c.

References AUDIO_S32MSB, SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, i, SDL_AudioCVT::len_cvt, SDL_SwapBE32, SDL_SwapLE32, and SDLCALL.

1486 {
1487  int i;
1488  const Uint32 *src;
1489  Sint32 *dst;
1490 
1491 #if DEBUG_CONVERT
1492  fprintf(stderr, "Converting AUDIO_S32LSB to AUDIO_S32MSB.\n");
1493 #endif
1494 
1495  src = (const Uint32 *) cvt->buf;
1496  dst = (Sint32 *) cvt->buf;
1497  for (i = cvt->len_cvt / sizeof (Uint32); i; --i, ++src, ++dst) {
1498  const Sint32 val = ((Sint32) SDL_SwapLE32(*src));
1499  *dst = ((Sint32) SDL_SwapBE32(val));
1500  }
1501 
1502  if (cvt->filters[++cvt->filter_index]) {
1503  cvt->filters[cvt->filter_index] (cvt, AUDIO_S32MSB);
1504  }
1505 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
AUDIO_S32MSB
#define AUDIO_S32MSB
Definition: SDL_audio.h:104
Uint32
uint32_t Uint32
An unsigned 32-bit integer type.
Definition: SDL_stdinc.h:155
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_SwapBE32
#define SDL_SwapBE32(X)
Definition: SDL_endian.h:216
val
GLuint GLfloat * val
Definition: SDL_opengl_glext.h:1492
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
SDL_SwapLE32
#define SDL_SwapLE32(X)
Definition: SDL_endian.h:212
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
i
return Display return Display Bool Bool int int int return Display XEvent Bool(*) XPointer return Display return Display Drawable _Xconst char unsigned int unsigned int return Display Pixmap Pixmap XColor XColor unsigned int unsigned int return Display _Xconst char char int char return Display Visual unsigned int int int char unsigned int unsigned int in i)
Definition: SDL_x11sym.h:42
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Convert_S32LSB_to_S8 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 1365 of file SDL_audiotypecvt.c.

References AUDIO_S8, SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, i, SDL_AudioCVT::len_cvt, SDL_SwapLE32, and SDLCALL.

1366 {
1367  int i;
1368  const Uint32 *src;
1369  Sint8 *dst;
1370 
1371 #if DEBUG_CONVERT
1372  fprintf(stderr, "Converting AUDIO_S32LSB to AUDIO_S8.\n");
1373 #endif
1374 
1375  src = (const Uint32 *) cvt->buf;
1376  dst = (Sint8 *) cvt->buf;
1377  for (i = cvt->len_cvt / sizeof (Uint32); i; --i, ++src, ++dst) {
1378  const Sint8 val = ((Sint8) (((Sint32) SDL_SwapLE32(*src)) >> 24));
1379  *dst = ((Sint8) val);
1380  }
1381 
1382  cvt->len_cvt /= 4;
1383  if (cvt->filters[++cvt->filter_index]) {
1384  cvt->filters[cvt->filter_index] (cvt, AUDIO_S8);
1385  }
1386 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
Uint32
uint32_t Uint32
An unsigned 32-bit integer type.
Definition: SDL_stdinc.h:155
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
val
GLuint GLfloat * val
Definition: SDL_opengl_glext.h:1492
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
Sint8
int8_t Sint8
A signed 8-bit integer type.
Definition: SDL_stdinc.h:135
SDL_SwapLE32
#define SDL_SwapLE32(X)
Definition: SDL_endian.h:212
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
i
return Display return Display Bool Bool int int int return Display XEvent Bool(*) XPointer return Display return Display Drawable _Xconst char unsigned int unsigned int return Display Pixmap Pixmap XColor XColor unsigned int unsigned int return Display _Xconst char char int char return Display Visual unsigned int int int char unsigned int unsigned int in i)
Definition: SDL_x11sym.h:42
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
AUDIO_S8
#define AUDIO_S8
Definition: SDL_audio.h:90
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Convert_S32LSB_to_U16LSB ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 1389 of file SDL_audiotypecvt.c.

References AUDIO_U16LSB, SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, i, SDL_AudioCVT::len_cvt, SDL_SwapLE16, SDL_SwapLE32, and SDLCALL.

1390 {
1391  int i;
1392  const Uint32 *src;
1393  Uint16 *dst;
1394 
1395 #if DEBUG_CONVERT
1396  fprintf(stderr, "Converting AUDIO_S32LSB to AUDIO_U16LSB.\n");
1397 #endif
1398 
1399  src = (const Uint32 *) cvt->buf;
1400  dst = (Uint16 *) cvt->buf;
1401  for (i = cvt->len_cvt / sizeof (Uint32); i; --i, ++src, ++dst) {
1402  const Uint16 val = ((Uint16) (((((Sint32) SDL_SwapLE32(*src))) ^ 0x80000000) >> 16));
1403  *dst = SDL_SwapLE16(val);
1404  }
1405 
1406  cvt->len_cvt /= 2;
1407  if (cvt->filters[++cvt->filter_index]) {
1408  cvt->filters[cvt->filter_index] (cvt, AUDIO_U16LSB);
1409  }
1410 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
Uint32
uint32_t Uint32
An unsigned 32-bit integer type.
Definition: SDL_stdinc.h:155
AUDIO_U16LSB
#define AUDIO_U16LSB
Definition: SDL_audio.h:91
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
val
GLuint GLfloat * val
Definition: SDL_opengl_glext.h:1492
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
SDL_SwapLE32
#define SDL_SwapLE32(X)
Definition: SDL_endian.h:212
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
i
return Display return Display Bool Bool int int int return Display XEvent Bool(*) XPointer return Display return Display Drawable _Xconst char unsigned int unsigned int return Display Pixmap Pixmap XColor XColor unsigned int unsigned int return Display _Xconst char char int char return Display Visual unsigned int int int char unsigned int unsigned int in i)
Definition: SDL_x11sym.h:42
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
Uint16
uint16_t Uint16
An unsigned 16-bit integer type.
Definition: SDL_stdinc.h:147
SDL_SwapLE16
#define SDL_SwapLE16(X)
Definition: SDL_endian.h:211
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Convert_S32LSB_to_U16MSB ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 1437 of file SDL_audiotypecvt.c.

References AUDIO_U16MSB, SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, i, SDL_AudioCVT::len_cvt, SDL_SwapBE16, SDL_SwapLE32, and SDLCALL.

1438 {
1439  int i;
1440  const Uint32 *src;
1441  Uint16 *dst;
1442 
1443 #if DEBUG_CONVERT
1444  fprintf(stderr, "Converting AUDIO_S32LSB to AUDIO_U16MSB.\n");
1445 #endif
1446 
1447  src = (const Uint32 *) cvt->buf;
1448  dst = (Uint16 *) cvt->buf;
1449  for (i = cvt->len_cvt / sizeof (Uint32); i; --i, ++src, ++dst) {
1450  const Uint16 val = ((Uint16) (((((Sint32) SDL_SwapLE32(*src))) ^ 0x80000000) >> 16));
1451  *dst = SDL_SwapBE16(val);
1452  }
1453 
1454  cvt->len_cvt /= 2;
1455  if (cvt->filters[++cvt->filter_index]) {
1456  cvt->filters[cvt->filter_index] (cvt, AUDIO_U16MSB);
1457  }
1458 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
Uint32
uint32_t Uint32
An unsigned 32-bit integer type.
Definition: SDL_stdinc.h:155
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_SwapBE16
#define SDL_SwapBE16(X)
Definition: SDL_endian.h:215
val
GLuint GLfloat * val
Definition: SDL_opengl_glext.h:1492
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
SDL_SwapLE32
#define SDL_SwapLE32(X)
Definition: SDL_endian.h:212
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
i
return Display return Display Bool Bool int int int return Display XEvent Bool(*) XPointer return Display return Display Drawable _Xconst char unsigned int unsigned int return Display Pixmap Pixmap XColor XColor unsigned int unsigned int return Display _Xconst char char int char return Display Visual unsigned int int int char unsigned int unsigned int in i)
Definition: SDL_x11sym.h:42
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
Uint16
uint16_t Uint16
An unsigned 16-bit integer type.
Definition: SDL_stdinc.h:147
src
GLenum src
Definition: SDL_opengl_glext.h:1737
AUDIO_U16MSB
#define AUDIO_U16MSB
Definition: SDL_audio.h:93
static void SDL_Convert_S32LSB_to_U8 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 1341 of file SDL_audiotypecvt.c.

References AUDIO_U8, SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, i, SDL_AudioCVT::len_cvt, SDL_SwapLE32, and SDLCALL.

1342 {
1343  int i;
1344  const Uint32 *src;
1345  Uint8 *dst;
1346 
1347 #if DEBUG_CONVERT
1348  fprintf(stderr, "Converting AUDIO_S32LSB to AUDIO_U8.\n");
1349 #endif
1350 
1351  src = (const Uint32 *) cvt->buf;
1352  dst = (Uint8 *) cvt->buf;
1353  for (i = cvt->len_cvt / sizeof (Uint32); i; --i, ++src, ++dst) {
1354  const Uint8 val = ((Uint8) (((((Sint32) SDL_SwapLE32(*src))) ^ 0x80000000) >> 24));
1355  *dst = val;
1356  }
1357 
1358  cvt->len_cvt /= 4;
1359  if (cvt->filters[++cvt->filter_index]) {
1360  cvt->filters[cvt->filter_index] (cvt, AUDIO_U8);
1361  }
1362 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
Uint32
uint32_t Uint32
An unsigned 32-bit integer type.
Definition: SDL_stdinc.h:155
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
AUDIO_U8
#define AUDIO_U8
Definition: SDL_audio.h:89
val
GLuint GLfloat * val
Definition: SDL_opengl_glext.h:1492
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
Uint8
uint8_t Uint8
An unsigned 8-bit integer type.
Definition: SDL_stdinc.h:139
SDL_SwapLE32
#define SDL_SwapLE32(X)
Definition: SDL_endian.h:212
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
i
return Display return Display Bool Bool int int int return Display XEvent Bool(*) XPointer return Display return Display Drawable _Xconst char unsigned int unsigned int return Display Pixmap Pixmap XColor XColor unsigned int unsigned int return Display _Xconst char char int char return Display Visual unsigned int int int char unsigned int unsigned int in i)
Definition: SDL_x11sym.h:42
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Convert_S32MSB_to_F32LSB ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 1721 of file SDL_audiotypecvt.c.

References AUDIO_F32LSB, SDL_AudioCVT::buf, DIVBY2147483647, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, i, SDL_AudioCVT::len_cvt, SDL_SwapBE32, SDL_SwapFloatLE, and SDLCALL.

1722 {
1723  int i;
1724  const Uint32 *src;
1725  float *dst;
1726 
1727 #if DEBUG_CONVERT
1728  fprintf(stderr, "Converting AUDIO_S32MSB to AUDIO_F32LSB.\n");
1729 #endif
1730 
1731  src = (const Uint32 *) cvt->buf;
1732  dst = (float *) cvt->buf;
1733  for (i = cvt->len_cvt / sizeof (Uint32); i; --i, ++src, ++dst) {
1734  const float val = (((float) ((Sint32) SDL_SwapBE32(*src))) * DIVBY2147483647);
1735  *dst = SDL_SwapFloatLE(val);
1736  }
1737 
1738  if (cvt->filters[++cvt->filter_index]) {
1739  cvt->filters[cvt->filter_index] (cvt, AUDIO_F32LSB);
1740  }
1741 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
Uint32
uint32_t Uint32
An unsigned 32-bit integer type.
Definition: SDL_stdinc.h:155
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_SwapFloatLE
#define SDL_SwapFloatLE(X)
Definition: SDL_endian.h:214
SDL_SwapBE32
#define SDL_SwapBE32(X)
Definition: SDL_endian.h:216
val
GLuint GLfloat * val
Definition: SDL_opengl_glext.h:1492
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
AUDIO_F32LSB
#define AUDIO_F32LSB
Definition: SDL_audio.h:112
DIVBY2147483647
#define DIVBY2147483647
Definition: SDL_audiotypecvt.c:54
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
i
return Display return Display Bool Bool int int int return Display XEvent Bool(*) XPointer return Display return Display Drawable _Xconst char unsigned int unsigned int return Display Pixmap Pixmap XColor XColor unsigned int unsigned int return Display _Xconst char char int char return Display Visual unsigned int int int char unsigned int unsigned int in i)
Definition: SDL_x11sym.h:42
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Convert_S32MSB_to_F32MSB ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 1744 of file SDL_audiotypecvt.c.

References AUDIO_F32MSB, SDL_AudioCVT::buf, DIVBY2147483647, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, i, SDL_AudioCVT::len_cvt, SDL_SwapBE32, SDL_SwapFloatBE, and SDLCALL.

1745 {
1746  int i;
1747  const Uint32 *src;
1748  float *dst;
1749 
1750 #if DEBUG_CONVERT
1751  fprintf(stderr, "Converting AUDIO_S32MSB to AUDIO_F32MSB.\n");
1752 #endif
1753 
1754  src = (const Uint32 *) cvt->buf;
1755  dst = (float *) cvt->buf;
1756  for (i = cvt->len_cvt / sizeof (Uint32); i; --i, ++src, ++dst) {
1757  const float val = (((float) ((Sint32) SDL_SwapBE32(*src))) * DIVBY2147483647);
1758  *dst = SDL_SwapFloatBE(val);
1759  }
1760 
1761  if (cvt->filters[++cvt->filter_index]) {
1762  cvt->filters[cvt->filter_index] (cvt, AUDIO_F32MSB);
1763  }
1764 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
SDL_SwapFloatBE
#define SDL_SwapFloatBE(X)
Definition: SDL_endian.h:218
Uint32
uint32_t Uint32
An unsigned 32-bit integer type.
Definition: SDL_stdinc.h:155
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_SwapBE32
#define SDL_SwapBE32(X)
Definition: SDL_endian.h:216
AUDIO_F32MSB
#define AUDIO_F32MSB
Definition: SDL_audio.h:113
val
GLuint GLfloat * val
Definition: SDL_opengl_glext.h:1492
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
DIVBY2147483647
#define DIVBY2147483647
Definition: SDL_audiotypecvt.c:54
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
i
return Display return Display Bool Bool int int int return Display XEvent Bool(*) XPointer return Display return Display Drawable _Xconst char unsigned int unsigned int return Display Pixmap Pixmap XColor XColor unsigned int unsigned int return Display _Xconst char char int char return Display Visual unsigned int int int char unsigned int unsigned int in i)
Definition: SDL_x11sym.h:42
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Convert_S32MSB_to_S16LSB ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 1626 of file SDL_audiotypecvt.c.

References AUDIO_S16LSB, SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, i, SDL_AudioCVT::len_cvt, SDL_SwapBE32, SDL_SwapLE16, and SDLCALL.

1627 {
1628  int i;
1629  const Uint32 *src;
1630  Sint16 *dst;
1631 
1632 #if DEBUG_CONVERT
1633  fprintf(stderr, "Converting AUDIO_S32MSB to AUDIO_S16LSB.\n");
1634 #endif
1635 
1636  src = (const Uint32 *) cvt->buf;
1637  dst = (Sint16 *) cvt->buf;
1638  for (i = cvt->len_cvt / sizeof (Uint32); i; --i, ++src, ++dst) {
1639  const Sint16 val = ((Sint16) (((Sint32) SDL_SwapBE32(*src)) >> 16));
1640  *dst = ((Sint16) SDL_SwapLE16(val));
1641  }
1642 
1643  cvt->len_cvt /= 2;
1644  if (cvt->filters[++cvt->filter_index]) {
1645  cvt->filters[cvt->filter_index] (cvt, AUDIO_S16LSB);
1646  }
1647 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
Uint32
uint32_t Uint32
An unsigned 32-bit integer type.
Definition: SDL_stdinc.h:155
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_SwapBE32
#define SDL_SwapBE32(X)
Definition: SDL_endian.h:216
val
GLuint GLfloat * val
Definition: SDL_opengl_glext.h:1492
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
i
return Display return Display Bool Bool int int int return Display XEvent Bool(*) XPointer return Display return Display Drawable _Xconst char unsigned int unsigned int return Display Pixmap Pixmap XColor XColor unsigned int unsigned int return Display _Xconst char char int char return Display Visual unsigned int int int char unsigned int unsigned int in i)
Definition: SDL_x11sym.h:42
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
AUDIO_S16LSB
#define AUDIO_S16LSB
Definition: SDL_audio.h:92
SDL_SwapLE16
#define SDL_SwapLE16(X)
Definition: SDL_endian.h:211
src
GLenum src
Definition: SDL_opengl_glext.h:1737
Sint16
int16_t Sint16
A signed 16-bit integer type.
Definition: SDL_stdinc.h:143
static void SDL_Convert_S32MSB_to_S16MSB ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 1674 of file SDL_audiotypecvt.c.

References AUDIO_S16MSB, SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, i, SDL_AudioCVT::len_cvt, SDL_SwapBE16, SDL_SwapBE32, and SDLCALL.

1675 {
1676  int i;
1677  const Uint32 *src;
1678  Sint16 *dst;
1679 
1680 #if DEBUG_CONVERT
1681  fprintf(stderr, "Converting AUDIO_S32MSB to AUDIO_S16MSB.\n");
1682 #endif
1683 
1684  src = (const Uint32 *) cvt->buf;
1685  dst = (Sint16 *) cvt->buf;
1686  for (i = cvt->len_cvt / sizeof (Uint32); i; --i, ++src, ++dst) {
1687  const Sint16 val = ((Sint16) (((Sint32) SDL_SwapBE32(*src)) >> 16));
1688  *dst = ((Sint16) SDL_SwapBE16(val));
1689  }
1690 
1691  cvt->len_cvt /= 2;
1692  if (cvt->filters[++cvt->filter_index]) {
1693  cvt->filters[cvt->filter_index] (cvt, AUDIO_S16MSB);
1694  }
1695 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
Uint32
uint32_t Uint32
An unsigned 32-bit integer type.
Definition: SDL_stdinc.h:155
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_SwapBE32
#define SDL_SwapBE32(X)
Definition: SDL_endian.h:216
SDL_SwapBE16
#define SDL_SwapBE16(X)
Definition: SDL_endian.h:215
val
GLuint GLfloat * val
Definition: SDL_opengl_glext.h:1492
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
i
return Display return Display Bool Bool int int int return Display XEvent Bool(*) XPointer return Display return Display Drawable _Xconst char unsigned int unsigned int return Display Pixmap Pixmap XColor XColor unsigned int unsigned int return Display _Xconst char char int char return Display Visual unsigned int int int char unsigned int unsigned int in i)
Definition: SDL_x11sym.h:42
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
AUDIO_S16MSB
#define AUDIO_S16MSB
Definition: SDL_audio.h:94
src
GLenum src
Definition: SDL_opengl_glext.h:1737
Sint16
int16_t Sint16
A signed 16-bit integer type.
Definition: SDL_stdinc.h:143
static void SDL_Convert_S32MSB_to_S32LSB ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 1698 of file SDL_audiotypecvt.c.

References AUDIO_S32LSB, SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, i, SDL_AudioCVT::len_cvt, SDL_SwapBE32, SDL_SwapLE32, and SDLCALL.

1699 {
1700  int i;
1701  const Uint32 *src;
1702  Sint32 *dst;
1703 
1704 #if DEBUG_CONVERT
1705  fprintf(stderr, "Converting AUDIO_S32MSB to AUDIO_S32LSB.\n");
1706 #endif
1707 
1708  src = (const Uint32 *) cvt->buf;
1709  dst = (Sint32 *) cvt->buf;
1710  for (i = cvt->len_cvt / sizeof (Uint32); i; --i, ++src, ++dst) {
1711  const Sint32 val = ((Sint32) SDL_SwapBE32(*src));
1712  *dst = ((Sint32) SDL_SwapLE32(val));
1713  }
1714 
1715  if (cvt->filters[++cvt->filter_index]) {
1716  cvt->filters[cvt->filter_index] (cvt, AUDIO_S32LSB);
1717  }
1718 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
Uint32
uint32_t Uint32
An unsigned 32-bit integer type.
Definition: SDL_stdinc.h:155
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_SwapBE32
#define SDL_SwapBE32(X)
Definition: SDL_endian.h:216
val
GLuint GLfloat * val
Definition: SDL_opengl_glext.h:1492
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
SDL_SwapLE32
#define SDL_SwapLE32(X)
Definition: SDL_endian.h:212
AUDIO_S32LSB
#define AUDIO_S32LSB
Definition: SDL_audio.h:103
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
i
return Display return Display Bool Bool int int int return Display XEvent Bool(*) XPointer return Display return Display Drawable _Xconst char unsigned int unsigned int return Display Pixmap Pixmap XColor XColor unsigned int unsigned int return Display _Xconst char char int char return Display Visual unsigned int int int char unsigned int unsigned int in i)
Definition: SDL_x11sym.h:42
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Convert_S32MSB_to_S8 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 1578 of file SDL_audiotypecvt.c.

References AUDIO_S8, SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, i, SDL_AudioCVT::len_cvt, SDL_SwapBE32, and SDLCALL.

1579 {
1580  int i;
1581  const Uint32 *src;
1582  Sint8 *dst;
1583 
1584 #if DEBUG_CONVERT
1585  fprintf(stderr, "Converting AUDIO_S32MSB to AUDIO_S8.\n");
1586 #endif
1587 
1588  src = (const Uint32 *) cvt->buf;
1589  dst = (Sint8 *) cvt->buf;
1590  for (i = cvt->len_cvt / sizeof (Uint32); i; --i, ++src, ++dst) {
1591  const Sint8 val = ((Sint8) (((Sint32) SDL_SwapBE32(*src)) >> 24));
1592  *dst = ((Sint8) val);
1593  }
1594 
1595  cvt->len_cvt /= 4;
1596  if (cvt->filters[++cvt->filter_index]) {
1597  cvt->filters[cvt->filter_index] (cvt, AUDIO_S8);
1598  }
1599 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
Uint32
uint32_t Uint32
An unsigned 32-bit integer type.
Definition: SDL_stdinc.h:155
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_SwapBE32
#define SDL_SwapBE32(X)
Definition: SDL_endian.h:216
val
GLuint GLfloat * val
Definition: SDL_opengl_glext.h:1492
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
Sint8
int8_t Sint8
A signed 8-bit integer type.
Definition: SDL_stdinc.h:135
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
i
return Display return Display Bool Bool int int int return Display XEvent Bool(*) XPointer return Display return Display Drawable _Xconst char unsigned int unsigned int return Display Pixmap Pixmap XColor XColor unsigned int unsigned int return Display _Xconst char char int char return Display Visual unsigned int int int char unsigned int unsigned int in i)
Definition: SDL_x11sym.h:42
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
AUDIO_S8
#define AUDIO_S8
Definition: SDL_audio.h:90
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Convert_S32MSB_to_U16LSB ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 1602 of file SDL_audiotypecvt.c.

References AUDIO_U16LSB, SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, i, SDL_AudioCVT::len_cvt, SDL_SwapBE32, SDL_SwapLE16, and SDLCALL.

1603 {
1604  int i;
1605  const Uint32 *src;
1606  Uint16 *dst;
1607 
1608 #if DEBUG_CONVERT
1609  fprintf(stderr, "Converting AUDIO_S32MSB to AUDIO_U16LSB.\n");
1610 #endif
1611 
1612  src = (const Uint32 *) cvt->buf;
1613  dst = (Uint16 *) cvt->buf;
1614  for (i = cvt->len_cvt / sizeof (Uint32); i; --i, ++src, ++dst) {
1615  const Uint16 val = ((Uint16) (((((Sint32) SDL_SwapBE32(*src))) ^ 0x80000000) >> 16));
1616  *dst = SDL_SwapLE16(val);
1617  }
1618 
1619  cvt->len_cvt /= 2;
1620  if (cvt->filters[++cvt->filter_index]) {
1621  cvt->filters[cvt->filter_index] (cvt, AUDIO_U16LSB);
1622  }
1623 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
Uint32
uint32_t Uint32
An unsigned 32-bit integer type.
Definition: SDL_stdinc.h:155
AUDIO_U16LSB
#define AUDIO_U16LSB
Definition: SDL_audio.h:91
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_SwapBE32
#define SDL_SwapBE32(X)
Definition: SDL_endian.h:216
val
GLuint GLfloat * val
Definition: SDL_opengl_glext.h:1492
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
i
return Display return Display Bool Bool int int int return Display XEvent Bool(*) XPointer return Display return Display Drawable _Xconst char unsigned int unsigned int return Display Pixmap Pixmap XColor XColor unsigned int unsigned int return Display _Xconst char char int char return Display Visual unsigned int int int char unsigned int unsigned int in i)
Definition: SDL_x11sym.h:42
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
Uint16
uint16_t Uint16
An unsigned 16-bit integer type.
Definition: SDL_stdinc.h:147
SDL_SwapLE16
#define SDL_SwapLE16(X)
Definition: SDL_endian.h:211
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Convert_S32MSB_to_U16MSB ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 1650 of file SDL_audiotypecvt.c.

References AUDIO_U16MSB, SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, i, SDL_AudioCVT::len_cvt, SDL_SwapBE16, SDL_SwapBE32, and SDLCALL.

1651 {
1652  int i;
1653  const Uint32 *src;
1654  Uint16 *dst;
1655 
1656 #if DEBUG_CONVERT
1657  fprintf(stderr, "Converting AUDIO_S32MSB to AUDIO_U16MSB.\n");
1658 #endif
1659 
1660  src = (const Uint32 *) cvt->buf;
1661  dst = (Uint16 *) cvt->buf;
1662  for (i = cvt->len_cvt / sizeof (Uint32); i; --i, ++src, ++dst) {
1663  const Uint16 val = ((Uint16) (((((Sint32) SDL_SwapBE32(*src))) ^ 0x80000000) >> 16));
1664  *dst = SDL_SwapBE16(val);
1665  }
1666 
1667  cvt->len_cvt /= 2;
1668  if (cvt->filters[++cvt->filter_index]) {
1669  cvt->filters[cvt->filter_index] (cvt, AUDIO_U16MSB);
1670  }
1671 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
Uint32
uint32_t Uint32
An unsigned 32-bit integer type.
Definition: SDL_stdinc.h:155
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_SwapBE32
#define SDL_SwapBE32(X)
Definition: SDL_endian.h:216
SDL_SwapBE16
#define SDL_SwapBE16(X)
Definition: SDL_endian.h:215
val
GLuint GLfloat * val
Definition: SDL_opengl_glext.h:1492
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
i
return Display return Display Bool Bool int int int return Display XEvent Bool(*) XPointer return Display return Display Drawable _Xconst char unsigned int unsigned int return Display Pixmap Pixmap XColor XColor unsigned int unsigned int return Display _Xconst char char int char return Display Visual unsigned int int int char unsigned int unsigned int in i)
Definition: SDL_x11sym.h:42
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
Uint16
uint16_t Uint16
An unsigned 16-bit integer type.
Definition: SDL_stdinc.h:147
src
GLenum src
Definition: SDL_opengl_glext.h:1737
AUDIO_U16MSB
#define AUDIO_U16MSB
Definition: SDL_audio.h:93
static void SDL_Convert_S32MSB_to_U8 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 1554 of file SDL_audiotypecvt.c.

References AUDIO_U8, SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, i, SDL_AudioCVT::len_cvt, SDL_SwapBE32, and SDLCALL.

1555 {
1556  int i;
1557  const Uint32 *src;
1558  Uint8 *dst;
1559 
1560 #if DEBUG_CONVERT
1561  fprintf(stderr, "Converting AUDIO_S32MSB to AUDIO_U8.\n");
1562 #endif
1563 
1564  src = (const Uint32 *) cvt->buf;
1565  dst = (Uint8 *) cvt->buf;
1566  for (i = cvt->len_cvt / sizeof (Uint32); i; --i, ++src, ++dst) {
1567  const Uint8 val = ((Uint8) (((((Sint32) SDL_SwapBE32(*src))) ^ 0x80000000) >> 24));
1568  *dst = val;
1569  }
1570 
1571  cvt->len_cvt /= 4;
1572  if (cvt->filters[++cvt->filter_index]) {
1573  cvt->filters[cvt->filter_index] (cvt, AUDIO_U8);
1574  }
1575 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
Uint32
uint32_t Uint32
An unsigned 32-bit integer type.
Definition: SDL_stdinc.h:155
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_SwapBE32
#define SDL_SwapBE32(X)
Definition: SDL_endian.h:216
AUDIO_U8
#define AUDIO_U8
Definition: SDL_audio.h:89
val
GLuint GLfloat * val
Definition: SDL_opengl_glext.h:1492
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
Uint8
uint8_t Uint8
An unsigned 8-bit integer type.
Definition: SDL_stdinc.h:139
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
i
return Display return Display Bool Bool int int int return Display XEvent Bool(*) XPointer return Display return Display Drawable _Xconst char unsigned int unsigned int return Display Pixmap Pixmap XColor XColor unsigned int unsigned int return Display _Xconst char char int char return Display Visual unsigned int int int char unsigned int unsigned int in i)
Definition: SDL_x11sym.h:42
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Convert_S8_to_F32LSB ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 441 of file SDL_audiotypecvt.c.

References AUDIO_F32LSB, SDL_AudioCVT::buf, DIVBY127, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, i, SDL_AudioCVT::len_cvt, SDL_SwapFloatLE, and SDLCALL.

442 {
443  int i;
444  const Uint8 *src;
445  float *dst;
446 
447 #if DEBUG_CONVERT
448  fprintf(stderr, "Converting AUDIO_S8 to AUDIO_F32LSB.\n");
449 #endif
450 
451  src = ((const Uint8 *) (cvt->buf + cvt->len_cvt)) - 1;
452  dst = ((float *) (cvt->buf + cvt->len_cvt * 4)) - 1;
453  for (i = cvt->len_cvt / sizeof (Uint8); i; --i, --src, --dst) {
454  const float val = (((float) ((Sint8) *src)) * DIVBY127);
455  *dst = SDL_SwapFloatLE(val);
456  }
457 
458  cvt->len_cvt *= 4;
459  if (cvt->filters[++cvt->filter_index]) {
460  cvt->filters[cvt->filter_index] (cvt, AUDIO_F32LSB);
461  }
462 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_SwapFloatLE
#define SDL_SwapFloatLE(X)
Definition: SDL_endian.h:214
val
GLuint GLfloat * val
Definition: SDL_opengl_glext.h:1492
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
Sint8
int8_t Sint8
A signed 8-bit integer type.
Definition: SDL_stdinc.h:135
Uint8
uint8_t Uint8
An unsigned 8-bit integer type.
Definition: SDL_stdinc.h:139
AUDIO_F32LSB
#define AUDIO_F32LSB
Definition: SDL_audio.h:112
DIVBY127
#define DIVBY127
Definition: SDL_audiotypecvt.c:52
i
return Display return Display Bool Bool int int int return Display XEvent Bool(*) XPointer return Display return Display Drawable _Xconst char unsigned int unsigned int return Display Pixmap Pixmap XColor XColor unsigned int unsigned int return Display _Xconst char char int char return Display Visual unsigned int int int char unsigned int unsigned int in i)
Definition: SDL_x11sym.h:42
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Convert_S8_to_F32MSB ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 465 of file SDL_audiotypecvt.c.

References AUDIO_F32MSB, SDL_AudioCVT::buf, DIVBY127, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, i, SDL_AudioCVT::len_cvt, SDL_SwapFloatBE, and SDLCALL.

466 {
467  int i;
468  const Uint8 *src;
469  float *dst;
470 
471 #if DEBUG_CONVERT
472  fprintf(stderr, "Converting AUDIO_S8 to AUDIO_F32MSB.\n");
473 #endif
474 
475  src = ((const Uint8 *) (cvt->buf + cvt->len_cvt)) - 1;
476  dst = ((float *) (cvt->buf + cvt->len_cvt * 4)) - 1;
477  for (i = cvt->len_cvt / sizeof (Uint8); i; --i, --src, --dst) {
478  const float val = (((float) ((Sint8) *src)) * DIVBY127);
479  *dst = SDL_SwapFloatBE(val);
480  }
481 
482  cvt->len_cvt *= 4;
483  if (cvt->filters[++cvt->filter_index]) {
484  cvt->filters[cvt->filter_index] (cvt, AUDIO_F32MSB);
485  }
486 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
SDL_SwapFloatBE
#define SDL_SwapFloatBE(X)
Definition: SDL_endian.h:218
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
AUDIO_F32MSB
#define AUDIO_F32MSB
Definition: SDL_audio.h:113
val
GLuint GLfloat * val
Definition: SDL_opengl_glext.h:1492
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
Sint8
int8_t Sint8
A signed 8-bit integer type.
Definition: SDL_stdinc.h:135
Uint8
uint8_t Uint8
An unsigned 8-bit integer type.
Definition: SDL_stdinc.h:139
DIVBY127
#define DIVBY127
Definition: SDL_audiotypecvt.c:52
i
return Display return Display Bool Bool int int int return Display XEvent Bool(*) XPointer return Display return Display Drawable _Xconst char unsigned int unsigned int return Display Pixmap Pixmap XColor XColor unsigned int unsigned int return Display _Xconst char char int char return Display Visual unsigned int int int char unsigned int unsigned int in i)
Definition: SDL_x11sym.h:42
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Convert_S8_to_S16LSB ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 321 of file SDL_audiotypecvt.c.

References AUDIO_S16LSB, SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, i, SDL_AudioCVT::len_cvt, SDL_SwapLE16, and SDLCALL.

322 {
323  int i;
324  const Uint8 *src;
325  Sint16 *dst;
326 
327 #if DEBUG_CONVERT
328  fprintf(stderr, "Converting AUDIO_S8 to AUDIO_S16LSB.\n");
329 #endif
330 
331  src = ((const Uint8 *) (cvt->buf + cvt->len_cvt)) - 1;
332  dst = ((Sint16 *) (cvt->buf + cvt->len_cvt * 2)) - 1;
333  for (i = cvt->len_cvt / sizeof (Uint8); i; --i, --src, --dst) {
334  const Sint16 val = (((Sint16) ((Sint8) *src)) << 8);
335  *dst = ((Sint16) SDL_SwapLE16(val));
336  }
337 
338  cvt->len_cvt *= 2;
339  if (cvt->filters[++cvt->filter_index]) {
340  cvt->filters[cvt->filter_index] (cvt, AUDIO_S16LSB);
341  }
342 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
val
GLuint GLfloat * val
Definition: SDL_opengl_glext.h:1492
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
Sint8
int8_t Sint8
A signed 8-bit integer type.
Definition: SDL_stdinc.h:135
Uint8
uint8_t Uint8
An unsigned 8-bit integer type.
Definition: SDL_stdinc.h:139
i
return Display return Display Bool Bool int int int return Display XEvent Bool(*) XPointer return Display return Display Drawable _Xconst char unsigned int unsigned int return Display Pixmap Pixmap XColor XColor unsigned int unsigned int return Display _Xconst char char int char return Display Visual unsigned int int int char unsigned int unsigned int in i)
Definition: SDL_x11sym.h:42
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
AUDIO_S16LSB
#define AUDIO_S16LSB
Definition: SDL_audio.h:92
SDL_SwapLE16
#define SDL_SwapLE16(X)
Definition: SDL_endian.h:211
src
GLenum src
Definition: SDL_opengl_glext.h:1737
Sint16
int16_t Sint16
A signed 16-bit integer type.
Definition: SDL_stdinc.h:143
static void SDL_Convert_S8_to_S16MSB ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 369 of file SDL_audiotypecvt.c.

References AUDIO_S16MSB, SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, i, SDL_AudioCVT::len_cvt, SDL_SwapBE16, and SDLCALL.

370 {
371  int i;
372  const Uint8 *src;
373  Sint16 *dst;
374 
375 #if DEBUG_CONVERT
376  fprintf(stderr, "Converting AUDIO_S8 to AUDIO_S16MSB.\n");
377 #endif
378 
379  src = ((const Uint8 *) (cvt->buf + cvt->len_cvt)) - 1;
380  dst = ((Sint16 *) (cvt->buf + cvt->len_cvt * 2)) - 1;
381  for (i = cvt->len_cvt / sizeof (Uint8); i; --i, --src, --dst) {
382  const Sint16 val = (((Sint16) ((Sint8) *src)) << 8);
383  *dst = ((Sint16) SDL_SwapBE16(val));
384  }
385 
386  cvt->len_cvt *= 2;
387  if (cvt->filters[++cvt->filter_index]) {
388  cvt->filters[cvt->filter_index] (cvt, AUDIO_S16MSB);
389  }
390 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_SwapBE16
#define SDL_SwapBE16(X)
Definition: SDL_endian.h:215
val
GLuint GLfloat * val
Definition: SDL_opengl_glext.h:1492
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
Sint8
int8_t Sint8
A signed 8-bit integer type.
Definition: SDL_stdinc.h:135
Uint8
uint8_t Uint8
An unsigned 8-bit integer type.
Definition: SDL_stdinc.h:139
i
return Display return Display Bool Bool int int int return Display XEvent Bool(*) XPointer return Display return Display Drawable _Xconst char unsigned int unsigned int return Display Pixmap Pixmap XColor XColor unsigned int unsigned int return Display _Xconst char char int char return Display Visual unsigned int int int char unsigned int unsigned int in i)
Definition: SDL_x11sym.h:42
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
AUDIO_S16MSB
#define AUDIO_S16MSB
Definition: SDL_audio.h:94
src
GLenum src
Definition: SDL_opengl_glext.h:1737
Sint16
int16_t Sint16
A signed 16-bit integer type.
Definition: SDL_stdinc.h:143
static void SDL_Convert_S8_to_S32LSB ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 393 of file SDL_audiotypecvt.c.

References AUDIO_S32LSB, SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, i, SDL_AudioCVT::len_cvt, SDL_SwapLE32, and SDLCALL.

394 {
395  int i;
396  const Uint8 *src;
397  Sint32 *dst;
398 
399 #if DEBUG_CONVERT
400  fprintf(stderr, "Converting AUDIO_S8 to AUDIO_S32LSB.\n");
401 #endif
402 
403  src = ((const Uint8 *) (cvt->buf + cvt->len_cvt)) - 1;
404  dst = ((Sint32 *) (cvt->buf + cvt->len_cvt * 4)) - 1;
405  for (i = cvt->len_cvt / sizeof (Uint8); i; --i, --src, --dst) {
406  const Sint32 val = (((Sint32) ((Sint8) *src)) << 24);
407  *dst = ((Sint32) SDL_SwapLE32(val));
408  }
409 
410  cvt->len_cvt *= 4;
411  if (cvt->filters[++cvt->filter_index]) {
412  cvt->filters[cvt->filter_index] (cvt, AUDIO_S32LSB);
413  }
414 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
val
GLuint GLfloat * val
Definition: SDL_opengl_glext.h:1492
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
Sint8
int8_t Sint8
A signed 8-bit integer type.
Definition: SDL_stdinc.h:135
Uint8
uint8_t Uint8
An unsigned 8-bit integer type.
Definition: SDL_stdinc.h:139
SDL_SwapLE32
#define SDL_SwapLE32(X)
Definition: SDL_endian.h:212
AUDIO_S32LSB
#define AUDIO_S32LSB
Definition: SDL_audio.h:103
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
i
return Display return Display Bool Bool int int int return Display XEvent Bool(*) XPointer return Display return Display Drawable _Xconst char unsigned int unsigned int return Display Pixmap Pixmap XColor XColor unsigned int unsigned int return Display _Xconst char char int char return Display Visual unsigned int int int char unsigned int unsigned int in i)
Definition: SDL_x11sym.h:42
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Convert_S8_to_S32MSB ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 417 of file SDL_audiotypecvt.c.

References AUDIO_S32MSB, SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, i, SDL_AudioCVT::len_cvt, SDL_SwapBE32, and SDLCALL.

418 {
419  int i;
420  const Uint8 *src;
421  Sint32 *dst;
422 
423 #if DEBUG_CONVERT
424  fprintf(stderr, "Converting AUDIO_S8 to AUDIO_S32MSB.\n");
425 #endif
426 
427  src = ((const Uint8 *) (cvt->buf + cvt->len_cvt)) - 1;
428  dst = ((Sint32 *) (cvt->buf + cvt->len_cvt * 4)) - 1;
429  for (i = cvt->len_cvt / sizeof (Uint8); i; --i, --src, --dst) {
430  const Sint32 val = (((Sint32) ((Sint8) *src)) << 24);
431  *dst = ((Sint32) SDL_SwapBE32(val));
432  }
433 
434  cvt->len_cvt *= 4;
435  if (cvt->filters[++cvt->filter_index]) {
436  cvt->filters[cvt->filter_index] (cvt, AUDIO_S32MSB);
437  }
438 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
AUDIO_S32MSB
#define AUDIO_S32MSB
Definition: SDL_audio.h:104
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_SwapBE32
#define SDL_SwapBE32(X)
Definition: SDL_endian.h:216
val
GLuint GLfloat * val
Definition: SDL_opengl_glext.h:1492
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
Sint8
int8_t Sint8
A signed 8-bit integer type.
Definition: SDL_stdinc.h:135
Uint8
uint8_t Uint8
An unsigned 8-bit integer type.
Definition: SDL_stdinc.h:139
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
i
return Display return Display Bool Bool int int int return Display XEvent Bool(*) XPointer return Display return Display Drawable _Xconst char unsigned int unsigned int return Display Pixmap Pixmap XColor XColor unsigned int unsigned int return Display _Xconst char char int char return Display Visual unsigned int int int char unsigned int unsigned int in i)
Definition: SDL_x11sym.h:42
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Convert_S8_to_U16LSB ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 297 of file SDL_audiotypecvt.c.

References AUDIO_U16LSB, SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, i, SDL_AudioCVT::len_cvt, SDL_SwapLE16, and SDLCALL.

298 {
299  int i;
300  const Uint8 *src;
301  Uint16 *dst;
302 
303 #if DEBUG_CONVERT
304  fprintf(stderr, "Converting AUDIO_S8 to AUDIO_U16LSB.\n");
305 #endif
306 
307  src = ((const Uint8 *) (cvt->buf + cvt->len_cvt)) - 1;
308  dst = ((Uint16 *) (cvt->buf + cvt->len_cvt * 2)) - 1;
309  for (i = cvt->len_cvt / sizeof (Uint8); i; --i, --src, --dst) {
310  const Uint16 val = (((Uint16) ((((Sint8) *src)) ^ 0x80)) << 8);
311  *dst = SDL_SwapLE16(val);
312  }
313 
314  cvt->len_cvt *= 2;
315  if (cvt->filters[++cvt->filter_index]) {
316  cvt->filters[cvt->filter_index] (cvt, AUDIO_U16LSB);
317  }
318 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
AUDIO_U16LSB
#define AUDIO_U16LSB
Definition: SDL_audio.h:91
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
val
GLuint GLfloat * val
Definition: SDL_opengl_glext.h:1492
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
Sint8
int8_t Sint8
A signed 8-bit integer type.
Definition: SDL_stdinc.h:135
Uint8
uint8_t Uint8
An unsigned 8-bit integer type.
Definition: SDL_stdinc.h:139
i
return Display return Display Bool Bool int int int return Display XEvent Bool(*) XPointer return Display return Display Drawable _Xconst char unsigned int unsigned int return Display Pixmap Pixmap XColor XColor unsigned int unsigned int return Display _Xconst char char int char return Display Visual unsigned int int int char unsigned int unsigned int in i)
Definition: SDL_x11sym.h:42
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
Uint16
uint16_t Uint16
An unsigned 16-bit integer type.
Definition: SDL_stdinc.h:147
SDL_SwapLE16
#define SDL_SwapLE16(X)
Definition: SDL_endian.h:211
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Convert_S8_to_U16MSB ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 345 of file SDL_audiotypecvt.c.

References AUDIO_U16MSB, SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, i, SDL_AudioCVT::len_cvt, SDL_SwapBE16, and SDLCALL.

346 {
347  int i;
348  const Uint8 *src;
349  Uint16 *dst;
350 
351 #if DEBUG_CONVERT
352  fprintf(stderr, "Converting AUDIO_S8 to AUDIO_U16MSB.\n");
353 #endif
354 
355  src = ((const Uint8 *) (cvt->buf + cvt->len_cvt)) - 1;
356  dst = ((Uint16 *) (cvt->buf + cvt->len_cvt * 2)) - 1;
357  for (i = cvt->len_cvt / sizeof (Uint8); i; --i, --src, --dst) {
358  const Uint16 val = (((Uint16) ((((Sint8) *src)) ^ 0x80)) << 8);
359  *dst = SDL_SwapBE16(val);
360  }
361 
362  cvt->len_cvt *= 2;
363  if (cvt->filters[++cvt->filter_index]) {
364  cvt->filters[cvt->filter_index] (cvt, AUDIO_U16MSB);
365  }
366 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_SwapBE16
#define SDL_SwapBE16(X)
Definition: SDL_endian.h:215
val
GLuint GLfloat * val
Definition: SDL_opengl_glext.h:1492
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
Sint8
int8_t Sint8
A signed 8-bit integer type.
Definition: SDL_stdinc.h:135
Uint8
uint8_t Uint8
An unsigned 8-bit integer type.
Definition: SDL_stdinc.h:139
i
return Display return Display Bool Bool int int int return Display XEvent Bool(*) XPointer return Display return Display Drawable _Xconst char unsigned int unsigned int return Display Pixmap Pixmap XColor XColor unsigned int unsigned int return Display _Xconst char char int char return Display Visual unsigned int int int char unsigned int unsigned int in i)
Definition: SDL_x11sym.h:42
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
Uint16
uint16_t Uint16
An unsigned 16-bit integer type.
Definition: SDL_stdinc.h:147
src
GLenum src
Definition: SDL_opengl_glext.h:1737
AUDIO_U16MSB
#define AUDIO_U16MSB
Definition: SDL_audio.h:93
static void SDL_Convert_S8_to_U8 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 274 of file SDL_audiotypecvt.c.

References AUDIO_U8, SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, i, SDL_AudioCVT::len_cvt, and SDLCALL.

275 {
276  int i;
277  const Uint8 *src;
278  Uint8 *dst;
279 
280 #if DEBUG_CONVERT
281  fprintf(stderr, "Converting AUDIO_S8 to AUDIO_U8.\n");
282 #endif
283 
284  src = (const Uint8 *) cvt->buf;
285  dst = (Uint8 *) cvt->buf;
286  for (i = cvt->len_cvt / sizeof (Uint8); i; --i, ++src, ++dst) {
287  const Uint8 val = ((((Sint8) *src)) ^ 0x80);
288  *dst = val;
289  }
290 
291  if (cvt->filters[++cvt->filter_index]) {
292  cvt->filters[cvt->filter_index] (cvt, AUDIO_U8);
293  }
294 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
AUDIO_U8
#define AUDIO_U8
Definition: SDL_audio.h:89
val
GLuint GLfloat * val
Definition: SDL_opengl_glext.h:1492
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
Sint8
int8_t Sint8
A signed 8-bit integer type.
Definition: SDL_stdinc.h:135
Uint8
uint8_t Uint8
An unsigned 8-bit integer type.
Definition: SDL_stdinc.h:139
i
return Display return Display Bool Bool int int int return Display XEvent Bool(*) XPointer return Display return Display Drawable _Xconst char unsigned int unsigned int return Display Pixmap Pixmap XColor XColor unsigned int unsigned int return Display _Xconst char char int char return Display Visual unsigned int int int char unsigned int unsigned int in i)
Definition: SDL_x11sym.h:42
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Convert_U16LSB_to_F32LSB ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 654 of file SDL_audiotypecvt.c.

References AUDIO_F32LSB, SDL_AudioCVT::buf, DIVBY32767, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, i, SDL_AudioCVT::len_cvt, SDL_SwapFloatLE, SDL_SwapLE16, and SDLCALL.

655 {
656  int i;
657  const Uint16 *src;
658  float *dst;
659 
660 #if DEBUG_CONVERT
661  fprintf(stderr, "Converting AUDIO_U16LSB to AUDIO_F32LSB.\n");
662 #endif
663 
664  src = ((const Uint16 *) (cvt->buf + cvt->len_cvt)) - 1;
665  dst = ((float *) (cvt->buf + cvt->len_cvt * 2)) - 1;
666  for (i = cvt->len_cvt / sizeof (Uint16); i; --i, --src, --dst) {
667  const float val = ((((float) SDL_SwapLE16(*src)) * DIVBY32767) - 1.0f);
668  *dst = SDL_SwapFloatLE(val);
669  }
670 
671  cvt->len_cvt *= 2;
672  if (cvt->filters[++cvt->filter_index]) {
673  cvt->filters[cvt->filter_index] (cvt, AUDIO_F32LSB);
674  }
675 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_SwapFloatLE
#define SDL_SwapFloatLE(X)
Definition: SDL_endian.h:214
val
GLuint GLfloat * val
Definition: SDL_opengl_glext.h:1492
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
AUDIO_F32LSB
#define AUDIO_F32LSB
Definition: SDL_audio.h:112
DIVBY32767
#define DIVBY32767
Definition: SDL_audiotypecvt.c:53
i
return Display return Display Bool Bool int int int return Display XEvent Bool(*) XPointer return Display return Display Drawable _Xconst char unsigned int unsigned int return Display Pixmap Pixmap XColor XColor unsigned int unsigned int return Display _Xconst char char int char return Display Visual unsigned int int int char unsigned int unsigned int in i)
Definition: SDL_x11sym.h:42
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
Uint16
uint16_t Uint16
An unsigned 16-bit integer type.
Definition: SDL_stdinc.h:147
SDL_SwapLE16
#define SDL_SwapLE16(X)
Definition: SDL_endian.h:211
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Convert_U16LSB_to_F32MSB ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 678 of file SDL_audiotypecvt.c.

References AUDIO_F32MSB, SDL_AudioCVT::buf, DIVBY32767, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, i, SDL_AudioCVT::len_cvt, SDL_SwapFloatBE, SDL_SwapLE16, and SDLCALL.

679 {
680  int i;
681  const Uint16 *src;
682  float *dst;
683 
684 #if DEBUG_CONVERT
685  fprintf(stderr, "Converting AUDIO_U16LSB to AUDIO_F32MSB.\n");
686 #endif
687 
688  src = ((const Uint16 *) (cvt->buf + cvt->len_cvt)) - 1;
689  dst = ((float *) (cvt->buf + cvt->len_cvt * 2)) - 1;
690  for (i = cvt->len_cvt / sizeof (Uint16); i; --i, --src, --dst) {
691  const float val = ((((float) SDL_SwapLE16(*src)) * DIVBY32767) - 1.0f);
692  *dst = SDL_SwapFloatBE(val);
693  }
694 
695  cvt->len_cvt *= 2;
696  if (cvt->filters[++cvt->filter_index]) {
697  cvt->filters[cvt->filter_index] (cvt, AUDIO_F32MSB);
698  }
699 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
SDL_SwapFloatBE
#define SDL_SwapFloatBE(X)
Definition: SDL_endian.h:218
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
AUDIO_F32MSB
#define AUDIO_F32MSB
Definition: SDL_audio.h:113
val
GLuint GLfloat * val
Definition: SDL_opengl_glext.h:1492
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
DIVBY32767
#define DIVBY32767
Definition: SDL_audiotypecvt.c:53
i
return Display return Display Bool Bool int int int return Display XEvent Bool(*) XPointer return Display return Display Drawable _Xconst char unsigned int unsigned int return Display Pixmap Pixmap XColor XColor unsigned int unsigned int return Display _Xconst char char int char return Display Visual unsigned int int int char unsigned int unsigned int in i)
Definition: SDL_x11sym.h:42
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
Uint16
uint16_t Uint16
An unsigned 16-bit integer type.
Definition: SDL_stdinc.h:147
SDL_SwapLE16
#define SDL_SwapLE16(X)
Definition: SDL_endian.h:211
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Convert_U16LSB_to_S16LSB ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 537 of file SDL_audiotypecvt.c.

References AUDIO_S16LSB, SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, i, SDL_AudioCVT::len_cvt, SDL_SwapLE16, and SDLCALL.

538 {
539  int i;
540  const Uint16 *src;
541  Sint16 *dst;
542 
543 #if DEBUG_CONVERT
544  fprintf(stderr, "Converting AUDIO_U16LSB to AUDIO_S16LSB.\n");
545 #endif
546 
547  src = (const Uint16 *) cvt->buf;
548  dst = (Sint16 *) cvt->buf;
549  for (i = cvt->len_cvt / sizeof (Uint16); i; --i, ++src, ++dst) {
550  const Sint16 val = ((SDL_SwapLE16(*src)) ^ 0x8000);
551  *dst = ((Sint16) SDL_SwapLE16(val));
552  }
553 
554  if (cvt->filters[++cvt->filter_index]) {
555  cvt->filters[cvt->filter_index] (cvt, AUDIO_S16LSB);
556  }
557 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
val
GLuint GLfloat * val
Definition: SDL_opengl_glext.h:1492
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
i
return Display return Display Bool Bool int int int return Display XEvent Bool(*) XPointer return Display return Display Drawable _Xconst char unsigned int unsigned int return Display Pixmap Pixmap XColor XColor unsigned int unsigned int return Display _Xconst char char int char return Display Visual unsigned int int int char unsigned int unsigned int in i)
Definition: SDL_x11sym.h:42
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
AUDIO_S16LSB
#define AUDIO_S16LSB
Definition: SDL_audio.h:92
Uint16
uint16_t Uint16
An unsigned 16-bit integer type.
Definition: SDL_stdinc.h:147
SDL_SwapLE16
#define SDL_SwapLE16(X)
Definition: SDL_endian.h:211
src
GLenum src
Definition: SDL_opengl_glext.h:1737
Sint16
int16_t Sint16
A signed 16-bit integer type.
Definition: SDL_stdinc.h:143
static void SDL_Convert_U16LSB_to_S16MSB ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 583 of file SDL_audiotypecvt.c.

References AUDIO_S16MSB, SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, i, SDL_AudioCVT::len_cvt, SDL_SwapBE16, SDL_SwapLE16, and SDLCALL.

584 {
585  int i;
586  const Uint16 *src;
587  Sint16 *dst;
588 
589 #if DEBUG_CONVERT
590  fprintf(stderr, "Converting AUDIO_U16LSB to AUDIO_S16MSB.\n");
591 #endif
592 
593  src = (const Uint16 *) cvt->buf;
594  dst = (Sint16 *) cvt->buf;
595  for (i = cvt->len_cvt / sizeof (Uint16); i; --i, ++src, ++dst) {
596  const Sint16 val = ((SDL_SwapLE16(*src)) ^ 0x8000);
597  *dst = ((Sint16) SDL_SwapBE16(val));
598  }
599 
600  if (cvt->filters[++cvt->filter_index]) {
601  cvt->filters[cvt->filter_index] (cvt, AUDIO_S16MSB);
602  }
603 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_SwapBE16
#define SDL_SwapBE16(X)
Definition: SDL_endian.h:215
val
GLuint GLfloat * val
Definition: SDL_opengl_glext.h:1492
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
i
return Display return Display Bool Bool int int int return Display XEvent Bool(*) XPointer return Display return Display Drawable _Xconst char unsigned int unsigned int return Display Pixmap Pixmap XColor XColor unsigned int unsigned int return Display _Xconst char char int char return Display Visual unsigned int int int char unsigned int unsigned int in i)
Definition: SDL_x11sym.h:42
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
AUDIO_S16MSB
#define AUDIO_S16MSB
Definition: SDL_audio.h:94
Uint16
uint16_t Uint16
An unsigned 16-bit integer type.
Definition: SDL_stdinc.h:147
SDL_SwapLE16
#define SDL_SwapLE16(X)
Definition: SDL_endian.h:211
src
GLenum src
Definition: SDL_opengl_glext.h:1737
Sint16
int16_t Sint16
A signed 16-bit integer type.
Definition: SDL_stdinc.h:143
static void SDL_Convert_U16LSB_to_S32LSB ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 606 of file SDL_audiotypecvt.c.

References AUDIO_S32LSB, SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, i, SDL_AudioCVT::len_cvt, SDL_SwapLE16, SDL_SwapLE32, and SDLCALL.

607 {
608  int i;
609  const Uint16 *src;
610  Sint32 *dst;
611 
612 #if DEBUG_CONVERT
613  fprintf(stderr, "Converting AUDIO_U16LSB to AUDIO_S32LSB.\n");
614 #endif
615 
616  src = ((const Uint16 *) (cvt->buf + cvt->len_cvt)) - 1;
617  dst = ((Sint32 *) (cvt->buf + cvt->len_cvt * 2)) - 1;
618  for (i = cvt->len_cvt / sizeof (Uint16); i; --i, --src, --dst) {
619  const Sint32 val = (((Sint32) ((SDL_SwapLE16(*src)) ^ 0x8000)) << 16);
620  *dst = ((Sint32) SDL_SwapLE32(val));
621  }
622 
623  cvt->len_cvt *= 2;
624  if (cvt->filters[++cvt->filter_index]) {
625  cvt->filters[cvt->filter_index] (cvt, AUDIO_S32LSB);
626  }
627 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
val
GLuint GLfloat * val
Definition: SDL_opengl_glext.h:1492
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
SDL_SwapLE32
#define SDL_SwapLE32(X)
Definition: SDL_endian.h:212
AUDIO_S32LSB
#define AUDIO_S32LSB
Definition: SDL_audio.h:103
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
i
return Display return Display Bool Bool int int int return Display XEvent Bool(*) XPointer return Display return Display Drawable _Xconst char unsigned int unsigned int return Display Pixmap Pixmap XColor XColor unsigned int unsigned int return Display _Xconst char char int char return Display Visual unsigned int int int char unsigned int unsigned int in i)
Definition: SDL_x11sym.h:42
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
Uint16
uint16_t Uint16
An unsigned 16-bit integer type.
Definition: SDL_stdinc.h:147
SDL_SwapLE16
#define SDL_SwapLE16(X)
Definition: SDL_endian.h:211
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Convert_U16LSB_to_S32MSB ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 630 of file SDL_audiotypecvt.c.

References AUDIO_S32MSB, SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, i, SDL_AudioCVT::len_cvt, SDL_SwapBE32, SDL_SwapLE16, and SDLCALL.

631 {
632  int i;
633  const Uint16 *src;
634  Sint32 *dst;
635 
636 #if DEBUG_CONVERT
637  fprintf(stderr, "Converting AUDIO_U16LSB to AUDIO_S32MSB.\n");
638 #endif
639 
640  src = ((const Uint16 *) (cvt->buf + cvt->len_cvt)) - 1;
641  dst = ((Sint32 *) (cvt->buf + cvt->len_cvt * 2)) - 1;
642  for (i = cvt->len_cvt / sizeof (Uint16); i; --i, --src, --dst) {
643  const Sint32 val = (((Sint32) ((SDL_SwapLE16(*src)) ^ 0x8000)) << 16);
644  *dst = ((Sint32) SDL_SwapBE32(val));
645  }
646 
647  cvt->len_cvt *= 2;
648  if (cvt->filters[++cvt->filter_index]) {
649  cvt->filters[cvt->filter_index] (cvt, AUDIO_S32MSB);
650  }
651 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
AUDIO_S32MSB
#define AUDIO_S32MSB
Definition: SDL_audio.h:104
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_SwapBE32
#define SDL_SwapBE32(X)
Definition: SDL_endian.h:216
val
GLuint GLfloat * val
Definition: SDL_opengl_glext.h:1492
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
i
return Display return Display Bool Bool int int int return Display XEvent Bool(*) XPointer return Display return Display Drawable _Xconst char unsigned int unsigned int return Display Pixmap Pixmap XColor XColor unsigned int unsigned int return Display _Xconst char char int char return Display Visual unsigned int int int char unsigned int unsigned int in i)
Definition: SDL_x11sym.h:42
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
Uint16
uint16_t Uint16
An unsigned 16-bit integer type.
Definition: SDL_stdinc.h:147
SDL_SwapLE16
#define SDL_SwapLE16(X)
Definition: SDL_endian.h:211
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Convert_U16LSB_to_S8 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 513 of file SDL_audiotypecvt.c.

References AUDIO_S8, SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, i, SDL_AudioCVT::len_cvt, SDL_SwapLE16, and SDLCALL.

514 {
515  int i;
516  const Uint16 *src;
517  Sint8 *dst;
518 
519 #if DEBUG_CONVERT
520  fprintf(stderr, "Converting AUDIO_U16LSB to AUDIO_S8.\n");
521 #endif
522 
523  src = (const Uint16 *) cvt->buf;
524  dst = (Sint8 *) cvt->buf;
525  for (i = cvt->len_cvt / sizeof (Uint16); i; --i, ++src, ++dst) {
526  const Sint8 val = ((Sint8) (((SDL_SwapLE16(*src)) ^ 0x8000) >> 8));
527  *dst = ((Sint8) val);
528  }
529 
530  cvt->len_cvt /= 2;
531  if (cvt->filters[++cvt->filter_index]) {
532  cvt->filters[cvt->filter_index] (cvt, AUDIO_S8);
533  }
534 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
val
GLuint GLfloat * val
Definition: SDL_opengl_glext.h:1492
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
Sint8
int8_t Sint8
A signed 8-bit integer type.
Definition: SDL_stdinc.h:135
i
return Display return Display Bool Bool int int int return Display XEvent Bool(*) XPointer return Display return Display Drawable _Xconst char unsigned int unsigned int return Display Pixmap Pixmap XColor XColor unsigned int unsigned int return Display _Xconst char char int char return Display Visual unsigned int int int char unsigned int unsigned int in i)
Definition: SDL_x11sym.h:42
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
Uint16
uint16_t Uint16
An unsigned 16-bit integer type.
Definition: SDL_stdinc.h:147
SDL_SwapLE16
#define SDL_SwapLE16(X)
Definition: SDL_endian.h:211
AUDIO_S8
#define AUDIO_S8
Definition: SDL_audio.h:90
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Convert_U16LSB_to_U16MSB ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 560 of file SDL_audiotypecvt.c.

References AUDIO_U16MSB, SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, i, SDL_AudioCVT::len_cvt, SDL_SwapBE16, SDL_SwapLE16, and SDLCALL.

561 {
562  int i;
563  const Uint16 *src;
564  Uint16 *dst;
565 
566 #if DEBUG_CONVERT
567  fprintf(stderr, "Converting AUDIO_U16LSB to AUDIO_U16MSB.\n");
568 #endif
569 
570  src = (const Uint16 *) cvt->buf;
571  dst = (Uint16 *) cvt->buf;
572  for (i = cvt->len_cvt / sizeof (Uint16); i; --i, ++src, ++dst) {
573  const Uint16 val = SDL_SwapLE16(*src);
574  *dst = SDL_SwapBE16(val);
575  }
576 
577  if (cvt->filters[++cvt->filter_index]) {
578  cvt->filters[cvt->filter_index] (cvt, AUDIO_U16MSB);
579  }
580 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_SwapBE16
#define SDL_SwapBE16(X)
Definition: SDL_endian.h:215
val
GLuint GLfloat * val
Definition: SDL_opengl_glext.h:1492
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
i
return Display return Display Bool Bool int int int return Display XEvent Bool(*) XPointer return Display return Display Drawable _Xconst char unsigned int unsigned int return Display Pixmap Pixmap XColor XColor unsigned int unsigned int return Display _Xconst char char int char return Display Visual unsigned int int int char unsigned int unsigned int in i)
Definition: SDL_x11sym.h:42
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
Uint16
uint16_t Uint16
An unsigned 16-bit integer type.
Definition: SDL_stdinc.h:147
SDL_SwapLE16
#define SDL_SwapLE16(X)
Definition: SDL_endian.h:211
src
GLenum src
Definition: SDL_opengl_glext.h:1737
AUDIO_U16MSB
#define AUDIO_U16MSB
Definition: SDL_audio.h:93
static void SDL_Convert_U16LSB_to_U8 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 489 of file SDL_audiotypecvt.c.

References AUDIO_U8, SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, i, SDL_AudioCVT::len_cvt, SDL_SwapLE16, and SDLCALL.

490 {
491  int i;
492  const Uint16 *src;
493  Uint8 *dst;
494 
495 #if DEBUG_CONVERT
496  fprintf(stderr, "Converting AUDIO_U16LSB to AUDIO_U8.\n");
497 #endif
498 
499  src = (const Uint16 *) cvt->buf;
500  dst = (Uint8 *) cvt->buf;
501  for (i = cvt->len_cvt / sizeof (Uint16); i; --i, ++src, ++dst) {
502  const Uint8 val = ((Uint8) (SDL_SwapLE16(*src) >> 8));
503  *dst = val;
504  }
505 
506  cvt->len_cvt /= 2;
507  if (cvt->filters[++cvt->filter_index]) {
508  cvt->filters[cvt->filter_index] (cvt, AUDIO_U8);
509  }
510 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
AUDIO_U8
#define AUDIO_U8
Definition: SDL_audio.h:89
val
GLuint GLfloat * val
Definition: SDL_opengl_glext.h:1492
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
Uint8
uint8_t Uint8
An unsigned 8-bit integer type.
Definition: SDL_stdinc.h:139
i
return Display return Display Bool Bool int int int return Display XEvent Bool(*) XPointer return Display return Display Drawable _Xconst char unsigned int unsigned int return Display Pixmap Pixmap XColor XColor unsigned int unsigned int return Display _Xconst char char int char return Display Visual unsigned int int int char unsigned int unsigned int in i)
Definition: SDL_x11sym.h:42
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
Uint16
uint16_t Uint16
An unsigned 16-bit integer type.
Definition: SDL_stdinc.h:147
SDL_SwapLE16
#define SDL_SwapLE16(X)
Definition: SDL_endian.h:211
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Convert_U16MSB_to_F32LSB ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 1080 of file SDL_audiotypecvt.c.

References AUDIO_F32LSB, SDL_AudioCVT::buf, DIVBY32767, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, i, SDL_AudioCVT::len_cvt, SDL_SwapBE16, SDL_SwapFloatLE, and SDLCALL.

1081 {
1082  int i;
1083  const Uint16 *src;
1084  float *dst;
1085 
1086 #if DEBUG_CONVERT
1087  fprintf(stderr, "Converting AUDIO_U16MSB to AUDIO_F32LSB.\n");
1088 #endif
1089 
1090  src = ((const Uint16 *) (cvt->buf + cvt->len_cvt)) - 1;
1091  dst = ((float *) (cvt->buf + cvt->len_cvt * 2)) - 1;
1092  for (i = cvt->len_cvt / sizeof (Uint16); i; --i, --src, --dst) {
1093  const float val = ((((float) SDL_SwapBE16(*src)) * DIVBY32767) - 1.0f);
1094  *dst = SDL_SwapFloatLE(val);
1095  }
1096 
1097  cvt->len_cvt *= 2;
1098  if (cvt->filters[++cvt->filter_index]) {
1099  cvt->filters[cvt->filter_index] (cvt, AUDIO_F32LSB);
1100  }
1101 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_SwapFloatLE
#define SDL_SwapFloatLE(X)
Definition: SDL_endian.h:214
SDL_SwapBE16
#define SDL_SwapBE16(X)
Definition: SDL_endian.h:215
val
GLuint GLfloat * val
Definition: SDL_opengl_glext.h:1492
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
AUDIO_F32LSB
#define AUDIO_F32LSB
Definition: SDL_audio.h:112
DIVBY32767
#define DIVBY32767
Definition: SDL_audiotypecvt.c:53
i
return Display return Display Bool Bool int int int return Display XEvent Bool(*) XPointer return Display return Display Drawable _Xconst char unsigned int unsigned int return Display Pixmap Pixmap XColor XColor unsigned int unsigned int return Display _Xconst char char int char return Display Visual unsigned int int int char unsigned int unsigned int in i)
Definition: SDL_x11sym.h:42
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
Uint16
uint16_t Uint16
An unsigned 16-bit integer type.
Definition: SDL_stdinc.h:147
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Convert_U16MSB_to_F32MSB ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 1104 of file SDL_audiotypecvt.c.

References AUDIO_F32MSB, SDL_AudioCVT::buf, DIVBY32767, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, i, SDL_AudioCVT::len_cvt, SDL_SwapBE16, SDL_SwapFloatBE, and SDLCALL.

1105 {
1106  int i;
1107  const Uint16 *src;
1108  float *dst;
1109 
1110 #if DEBUG_CONVERT
1111  fprintf(stderr, "Converting AUDIO_U16MSB to AUDIO_F32MSB.\n");
1112 #endif
1113 
1114  src = ((const Uint16 *) (cvt->buf + cvt->len_cvt)) - 1;
1115  dst = ((float *) (cvt->buf + cvt->len_cvt * 2)) - 1;
1116  for (i = cvt->len_cvt / sizeof (Uint16); i; --i, --src, --dst) {
1117  const float val = ((((float) SDL_SwapBE16(*src)) * DIVBY32767) - 1.0f);
1118  *dst = SDL_SwapFloatBE(val);
1119  }
1120 
1121  cvt->len_cvt *= 2;
1122  if (cvt->filters[++cvt->filter_index]) {
1123  cvt->filters[cvt->filter_index] (cvt, AUDIO_F32MSB);
1124  }
1125 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
SDL_SwapFloatBE
#define SDL_SwapFloatBE(X)
Definition: SDL_endian.h:218
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_SwapBE16
#define SDL_SwapBE16(X)
Definition: SDL_endian.h:215
AUDIO_F32MSB
#define AUDIO_F32MSB
Definition: SDL_audio.h:113
val
GLuint GLfloat * val
Definition: SDL_opengl_glext.h:1492
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
DIVBY32767
#define DIVBY32767
Definition: SDL_audiotypecvt.c:53
i
return Display return Display Bool Bool int int int return Display XEvent Bool(*) XPointer return Display return Display Drawable _Xconst char unsigned int unsigned int return Display Pixmap Pixmap XColor XColor unsigned int unsigned int return Display _Xconst char char int char return Display Visual unsigned int int int char unsigned int unsigned int in i)
Definition: SDL_x11sym.h:42
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
Uint16
uint16_t Uint16
An unsigned 16-bit integer type.
Definition: SDL_stdinc.h:147
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Convert_U16MSB_to_S16LSB ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 986 of file SDL_audiotypecvt.c.

References AUDIO_S16LSB, SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, i, SDL_AudioCVT::len_cvt, SDL_SwapBE16, SDL_SwapLE16, and SDLCALL.

987 {
988  int i;
989  const Uint16 *src;
990  Sint16 *dst;
991 
992 #if DEBUG_CONVERT
993  fprintf(stderr, "Converting AUDIO_U16MSB to AUDIO_S16LSB.\n");
994 #endif
995 
996  src = (const Uint16 *) cvt->buf;
997  dst = (Sint16 *) cvt->buf;
998  for (i = cvt->len_cvt / sizeof (Uint16); i; --i, ++src, ++dst) {
999  const Sint16 val = ((SDL_SwapBE16(*src)) ^ 0x8000);
1000  *dst = ((Sint16) SDL_SwapLE16(val));
1001  }
1002 
1003  if (cvt->filters[++cvt->filter_index]) {
1004  cvt->filters[cvt->filter_index] (cvt, AUDIO_S16LSB);
1005  }
1006 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_SwapBE16
#define SDL_SwapBE16(X)
Definition: SDL_endian.h:215
val
GLuint GLfloat * val
Definition: SDL_opengl_glext.h:1492
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
i
return Display return Display Bool Bool int int int return Display XEvent Bool(*) XPointer return Display return Display Drawable _Xconst char unsigned int unsigned int return Display Pixmap Pixmap XColor XColor unsigned int unsigned int return Display _Xconst char char int char return Display Visual unsigned int int int char unsigned int unsigned int in i)
Definition: SDL_x11sym.h:42
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
AUDIO_S16LSB
#define AUDIO_S16LSB
Definition: SDL_audio.h:92
Uint16
uint16_t Uint16
An unsigned 16-bit integer type.
Definition: SDL_stdinc.h:147
SDL_SwapLE16
#define SDL_SwapLE16(X)
Definition: SDL_endian.h:211
src
GLenum src
Definition: SDL_opengl_glext.h:1737
Sint16
int16_t Sint16
A signed 16-bit integer type.
Definition: SDL_stdinc.h:143
static void SDL_Convert_U16MSB_to_S16MSB ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 1009 of file SDL_audiotypecvt.c.

References AUDIO_S16MSB, SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, i, SDL_AudioCVT::len_cvt, SDL_SwapBE16, and SDLCALL.

1010 {
1011  int i;
1012  const Uint16 *src;
1013  Sint16 *dst;
1014 
1015 #if DEBUG_CONVERT
1016  fprintf(stderr, "Converting AUDIO_U16MSB to AUDIO_S16MSB.\n");
1017 #endif
1018 
1019  src = (const Uint16 *) cvt->buf;
1020  dst = (Sint16 *) cvt->buf;
1021  for (i = cvt->len_cvt / sizeof (Uint16); i; --i, ++src, ++dst) {
1022  const Sint16 val = ((SDL_SwapBE16(*src)) ^ 0x8000);
1023  *dst = ((Sint16) SDL_SwapBE16(val));
1024  }
1025 
1026  if (cvt->filters[++cvt->filter_index]) {
1027  cvt->filters[cvt->filter_index] (cvt, AUDIO_S16MSB);
1028  }
1029 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_SwapBE16
#define SDL_SwapBE16(X)
Definition: SDL_endian.h:215
val
GLuint GLfloat * val
Definition: SDL_opengl_glext.h:1492
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
i
return Display return Display Bool Bool int int int return Display XEvent Bool(*) XPointer return Display return Display Drawable _Xconst char unsigned int unsigned int return Display Pixmap Pixmap XColor XColor unsigned int unsigned int return Display _Xconst char char int char return Display Visual unsigned int int int char unsigned int unsigned int in i)
Definition: SDL_x11sym.h:42
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
AUDIO_S16MSB
#define AUDIO_S16MSB
Definition: SDL_audio.h:94
Uint16
uint16_t Uint16
An unsigned 16-bit integer type.
Definition: SDL_stdinc.h:147
src
GLenum src
Definition: SDL_opengl_glext.h:1737
Sint16
int16_t Sint16
A signed 16-bit integer type.
Definition: SDL_stdinc.h:143
static void SDL_Convert_U16MSB_to_S32LSB ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 1032 of file SDL_audiotypecvt.c.

References AUDIO_S32LSB, SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, i, SDL_AudioCVT::len_cvt, SDL_SwapBE16, SDL_SwapLE32, and SDLCALL.

1033 {
1034  int i;
1035  const Uint16 *src;
1036  Sint32 *dst;
1037 
1038 #if DEBUG_CONVERT
1039  fprintf(stderr, "Converting AUDIO_U16MSB to AUDIO_S32LSB.\n");
1040 #endif
1041 
1042  src = ((const Uint16 *) (cvt->buf + cvt->len_cvt)) - 1;
1043  dst = ((Sint32 *) (cvt->buf + cvt->len_cvt * 2)) - 1;
1044  for (i = cvt->len_cvt / sizeof (Uint16); i; --i, --src, --dst) {
1045  const Sint32 val = (((Sint32) ((SDL_SwapBE16(*src)) ^ 0x8000)) << 16);
1046  *dst = ((Sint32) SDL_SwapLE32(val));
1047  }
1048 
1049  cvt->len_cvt *= 2;
1050  if (cvt->filters[++cvt->filter_index]) {
1051  cvt->filters[cvt->filter_index] (cvt, AUDIO_S32LSB);
1052  }
1053 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_SwapBE16
#define SDL_SwapBE16(X)
Definition: SDL_endian.h:215
val
GLuint GLfloat * val
Definition: SDL_opengl_glext.h:1492
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
SDL_SwapLE32
#define SDL_SwapLE32(X)
Definition: SDL_endian.h:212
AUDIO_S32LSB
#define AUDIO_S32LSB
Definition: SDL_audio.h:103
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
i
return Display return Display Bool Bool int int int return Display XEvent Bool(*) XPointer return Display return Display Drawable _Xconst char unsigned int unsigned int return Display Pixmap Pixmap XColor XColor unsigned int unsigned int return Display _Xconst char char int char return Display Visual unsigned int int int char unsigned int unsigned int in i)
Definition: SDL_x11sym.h:42
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
Uint16
uint16_t Uint16
An unsigned 16-bit integer type.
Definition: SDL_stdinc.h:147
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Convert_U16MSB_to_S32MSB ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 1056 of file SDL_audiotypecvt.c.

References AUDIO_S32MSB, SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, i, SDL_AudioCVT::len_cvt, SDL_SwapBE16, SDL_SwapBE32, and SDLCALL.

1057 {
1058  int i;
1059  const Uint16 *src;
1060  Sint32 *dst;
1061 
1062 #if DEBUG_CONVERT
1063  fprintf(stderr, "Converting AUDIO_U16MSB to AUDIO_S32MSB.\n");
1064 #endif
1065 
1066  src = ((const Uint16 *) (cvt->buf + cvt->len_cvt)) - 1;
1067  dst = ((Sint32 *) (cvt->buf + cvt->len_cvt * 2)) - 1;
1068  for (i = cvt->len_cvt / sizeof (Uint16); i; --i, --src, --dst) {
1069  const Sint32 val = (((Sint32) ((SDL_SwapBE16(*src)) ^ 0x8000)) << 16);
1070  *dst = ((Sint32) SDL_SwapBE32(val));
1071  }
1072 
1073  cvt->len_cvt *= 2;
1074  if (cvt->filters[++cvt->filter_index]) {
1075  cvt->filters[cvt->filter_index] (cvt, AUDIO_S32MSB);
1076  }
1077 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
AUDIO_S32MSB
#define AUDIO_S32MSB
Definition: SDL_audio.h:104
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_SwapBE32
#define SDL_SwapBE32(X)
Definition: SDL_endian.h:216
SDL_SwapBE16
#define SDL_SwapBE16(X)
Definition: SDL_endian.h:215
val
GLuint GLfloat * val
Definition: SDL_opengl_glext.h:1492
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
i
return Display return Display Bool Bool int int int return Display XEvent Bool(*) XPointer return Display return Display Drawable _Xconst char unsigned int unsigned int return Display Pixmap Pixmap XColor XColor unsigned int unsigned int return Display _Xconst char char int char return Display Visual unsigned int int int char unsigned int unsigned int in i)
Definition: SDL_x11sym.h:42
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
Uint16
uint16_t Uint16
An unsigned 16-bit integer type.
Definition: SDL_stdinc.h:147
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Convert_U16MSB_to_S8 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 939 of file SDL_audiotypecvt.c.

References AUDIO_S8, SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, i, SDL_AudioCVT::len_cvt, SDL_SwapBE16, and SDLCALL.

940 {
941  int i;
942  const Uint16 *src;
943  Sint8 *dst;
944 
945 #if DEBUG_CONVERT
946  fprintf(stderr, "Converting AUDIO_U16MSB to AUDIO_S8.\n");
947 #endif
948 
949  src = (const Uint16 *) cvt->buf;
950  dst = (Sint8 *) cvt->buf;
951  for (i = cvt->len_cvt / sizeof (Uint16); i; --i, ++src, ++dst) {
952  const Sint8 val = ((Sint8) (((SDL_SwapBE16(*src)) ^ 0x8000) >> 8));
953  *dst = ((Sint8) val);
954  }
955 
956  cvt->len_cvt /= 2;
957  if (cvt->filters[++cvt->filter_index]) {
958  cvt->filters[cvt->filter_index] (cvt, AUDIO_S8);
959  }
960 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_SwapBE16
#define SDL_SwapBE16(X)
Definition: SDL_endian.h:215
val
GLuint GLfloat * val
Definition: SDL_opengl_glext.h:1492
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
Sint8
int8_t Sint8
A signed 8-bit integer type.
Definition: SDL_stdinc.h:135
i
return Display return Display Bool Bool int int int return Display XEvent Bool(*) XPointer return Display return Display Drawable _Xconst char unsigned int unsigned int return Display Pixmap Pixmap XColor XColor unsigned int unsigned int return Display _Xconst char char int char return Display Visual unsigned int int int char unsigned int unsigned int in i)
Definition: SDL_x11sym.h:42
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
Uint16
uint16_t Uint16
An unsigned 16-bit integer type.
Definition: SDL_stdinc.h:147
AUDIO_S8
#define AUDIO_S8
Definition: SDL_audio.h:90
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Convert_U16MSB_to_U16LSB ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 963 of file SDL_audiotypecvt.c.

References AUDIO_U16LSB, SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, i, SDL_AudioCVT::len_cvt, SDL_SwapBE16, SDL_SwapLE16, and SDLCALL.

964 {
965  int i;
966  const Uint16 *src;
967  Uint16 *dst;
968 
969 #if DEBUG_CONVERT
970  fprintf(stderr, "Converting AUDIO_U16MSB to AUDIO_U16LSB.\n");
971 #endif
972 
973  src = (const Uint16 *) cvt->buf;
974  dst = (Uint16 *) cvt->buf;
975  for (i = cvt->len_cvt / sizeof (Uint16); i; --i, ++src, ++dst) {
976  const Uint16 val = SDL_SwapBE16(*src);
977  *dst = SDL_SwapLE16(val);
978  }
979 
980  if (cvt->filters[++cvt->filter_index]) {
981  cvt->filters[cvt->filter_index] (cvt, AUDIO_U16LSB);
982  }
983 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
AUDIO_U16LSB
#define AUDIO_U16LSB
Definition: SDL_audio.h:91
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_SwapBE16
#define SDL_SwapBE16(X)
Definition: SDL_endian.h:215
val
GLuint GLfloat * val
Definition: SDL_opengl_glext.h:1492
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
i
return Display return Display Bool Bool int int int return Display XEvent Bool(*) XPointer return Display return Display Drawable _Xconst char unsigned int unsigned int return Display Pixmap Pixmap XColor XColor unsigned int unsigned int return Display _Xconst char char int char return Display Visual unsigned int int int char unsigned int unsigned int in i)
Definition: SDL_x11sym.h:42
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
Uint16
uint16_t Uint16
An unsigned 16-bit integer type.
Definition: SDL_stdinc.h:147
SDL_SwapLE16
#define SDL_SwapLE16(X)
Definition: SDL_endian.h:211
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Convert_U16MSB_to_U8 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 915 of file SDL_audiotypecvt.c.

References AUDIO_U8, SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, i, SDL_AudioCVT::len_cvt, SDL_SwapBE16, and SDLCALL.

916 {
917  int i;
918  const Uint16 *src;
919  Uint8 *dst;
920 
921 #if DEBUG_CONVERT
922  fprintf(stderr, "Converting AUDIO_U16MSB to AUDIO_U8.\n");
923 #endif
924 
925  src = (const Uint16 *) cvt->buf;
926  dst = (Uint8 *) cvt->buf;
927  for (i = cvt->len_cvt / sizeof (Uint16); i; --i, ++src, ++dst) {
928  const Uint8 val = ((Uint8) (SDL_SwapBE16(*src) >> 8));
929  *dst = val;
930  }
931 
932  cvt->len_cvt /= 2;
933  if (cvt->filters[++cvt->filter_index]) {
934  cvt->filters[cvt->filter_index] (cvt, AUDIO_U8);
935  }
936 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_SwapBE16
#define SDL_SwapBE16(X)
Definition: SDL_endian.h:215
AUDIO_U8
#define AUDIO_U8
Definition: SDL_audio.h:89
val
GLuint GLfloat * val
Definition: SDL_opengl_glext.h:1492
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
Uint8
uint8_t Uint8
An unsigned 8-bit integer type.
Definition: SDL_stdinc.h:139
i
return Display return Display Bool Bool int int int return Display XEvent Bool(*) XPointer return Display return Display Drawable _Xconst char unsigned int unsigned int return Display Pixmap Pixmap XColor XColor unsigned int unsigned int return Display _Xconst char char int char return Display Visual unsigned int int int char unsigned int unsigned int in i)
Definition: SDL_x11sym.h:42
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
Uint16
uint16_t Uint16
An unsigned 16-bit integer type.
Definition: SDL_stdinc.h:147
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Convert_U8_to_F32LSB ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 226 of file SDL_audiotypecvt.c.

References AUDIO_F32LSB, SDL_AudioCVT::buf, DIVBY127, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, i, SDL_AudioCVT::len_cvt, SDL_SwapFloatLE, and SDLCALL.

227 {
228  int i;
229  const Uint8 *src;
230  float *dst;
231 
232 #if DEBUG_CONVERT
233  fprintf(stderr, "Converting AUDIO_U8 to AUDIO_F32LSB.\n");
234 #endif
235 
236  src = ((const Uint8 *) (cvt->buf + cvt->len_cvt)) - 1;
237  dst = ((float *) (cvt->buf + cvt->len_cvt * 4)) - 1;
238  for (i = cvt->len_cvt / sizeof (Uint8); i; --i, --src, --dst) {
239  const float val = ((((float) *src) * DIVBY127) - 1.0f);
240  *dst = SDL_SwapFloatLE(val);
241  }
242 
243  cvt->len_cvt *= 4;
244  if (cvt->filters[++cvt->filter_index]) {
245  cvt->filters[cvt->filter_index] (cvt, AUDIO_F32LSB);
246  }
247 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
f
GLfloat f
Definition: SDL_opengl_glext.h:1870
SDL_SwapFloatLE
#define SDL_SwapFloatLE(X)
Definition: SDL_endian.h:214
val
GLuint GLfloat * val
Definition: SDL_opengl_glext.h:1492
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
Uint8
uint8_t Uint8
An unsigned 8-bit integer type.
Definition: SDL_stdinc.h:139
AUDIO_F32LSB
#define AUDIO_F32LSB
Definition: SDL_audio.h:112
DIVBY127
#define DIVBY127
Definition: SDL_audiotypecvt.c:52
i
return Display return Display Bool Bool int int int return Display XEvent Bool(*) XPointer return Display return Display Drawable _Xconst char unsigned int unsigned int return Display Pixmap Pixmap XColor XColor unsigned int unsigned int return Display _Xconst char char int char return Display Visual unsigned int int int char unsigned int unsigned int in i)
Definition: SDL_x11sym.h:42
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Convert_U8_to_F32MSB ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 250 of file SDL_audiotypecvt.c.

References AUDIO_F32MSB, SDL_AudioCVT::buf, DIVBY127, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, i, SDL_AudioCVT::len_cvt, SDL_SwapFloatBE, and SDLCALL.

251 {
252  int i;
253  const Uint8 *src;
254  float *dst;
255 
256 #if DEBUG_CONVERT
257  fprintf(stderr, "Converting AUDIO_U8 to AUDIO_F32MSB.\n");
258 #endif
259 
260  src = ((const Uint8 *) (cvt->buf + cvt->len_cvt)) - 1;
261  dst = ((float *) (cvt->buf + cvt->len_cvt * 4)) - 1;
262  for (i = cvt->len_cvt / sizeof (Uint8); i; --i, --src, --dst) {
263  const float val = ((((float) *src) * DIVBY127) - 1.0f);
264  *dst = SDL_SwapFloatBE(val);
265  }
266 
267  cvt->len_cvt *= 4;
268  if (cvt->filters[++cvt->filter_index]) {
269  cvt->filters[cvt->filter_index] (cvt, AUDIO_F32MSB);
270  }
271 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
SDL_SwapFloatBE
#define SDL_SwapFloatBE(X)
Definition: SDL_endian.h:218
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
f
GLfloat f
Definition: SDL_opengl_glext.h:1870
AUDIO_F32MSB
#define AUDIO_F32MSB
Definition: SDL_audio.h:113
val
GLuint GLfloat * val
Definition: SDL_opengl_glext.h:1492
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
Uint8
uint8_t Uint8
An unsigned 8-bit integer type.
Definition: SDL_stdinc.h:139
DIVBY127
#define DIVBY127
Definition: SDL_audiotypecvt.c:52
i
return Display return Display Bool Bool int int int return Display XEvent Bool(*) XPointer return Display return Display Drawable _Xconst char unsigned int unsigned int return Display Pixmap Pixmap XColor XColor unsigned int unsigned int return Display _Xconst char char int char return Display Visual unsigned int int int char unsigned int unsigned int in i)
Definition: SDL_x11sym.h:42
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Convert_U8_to_S16LSB ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 106 of file SDL_audiotypecvt.c.

References AUDIO_S16LSB, SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, i, SDL_AudioCVT::len_cvt, SDL_SwapLE16, and SDLCALL.

107 {
108  int i;
109  const Uint8 *src;
110  Sint16 *dst;
111 
112 #if DEBUG_CONVERT
113  fprintf(stderr, "Converting AUDIO_U8 to AUDIO_S16LSB.\n");
114 #endif
115 
116  src = ((const Uint8 *) (cvt->buf + cvt->len_cvt)) - 1;
117  dst = ((Sint16 *) (cvt->buf + cvt->len_cvt * 2)) - 1;
118  for (i = cvt->len_cvt / sizeof (Uint8); i; --i, --src, --dst) {
119  const Sint16 val = (((Sint16) ((*src) ^ 0x80)) << 8);
120  *dst = ((Sint16) SDL_SwapLE16(val));
121  }
122 
123  cvt->len_cvt *= 2;
124  if (cvt->filters[++cvt->filter_index]) {
125  cvt->filters[cvt->filter_index] (cvt, AUDIO_S16LSB);
126  }
127 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
val
GLuint GLfloat * val
Definition: SDL_opengl_glext.h:1492
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
Uint8
uint8_t Uint8
An unsigned 8-bit integer type.
Definition: SDL_stdinc.h:139
i
return Display return Display Bool Bool int int int return Display XEvent Bool(*) XPointer return Display return Display Drawable _Xconst char unsigned int unsigned int return Display Pixmap Pixmap XColor XColor unsigned int unsigned int return Display _Xconst char char int char return Display Visual unsigned int int int char unsigned int unsigned int in i)
Definition: SDL_x11sym.h:42
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
AUDIO_S16LSB
#define AUDIO_S16LSB
Definition: SDL_audio.h:92
SDL_SwapLE16
#define SDL_SwapLE16(X)
Definition: SDL_endian.h:211
src
GLenum src
Definition: SDL_opengl_glext.h:1737
Sint16
int16_t Sint16
A signed 16-bit integer type.
Definition: SDL_stdinc.h:143
static void SDL_Convert_U8_to_S16MSB ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 154 of file SDL_audiotypecvt.c.

References AUDIO_S16MSB, SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, i, SDL_AudioCVT::len_cvt, SDL_SwapBE16, and SDLCALL.

155 {
156  int i;
157  const Uint8 *src;
158  Sint16 *dst;
159 
160 #if DEBUG_CONVERT
161  fprintf(stderr, "Converting AUDIO_U8 to AUDIO_S16MSB.\n");
162 #endif
163 
164  src = ((const Uint8 *) (cvt->buf + cvt->len_cvt)) - 1;
165  dst = ((Sint16 *) (cvt->buf + cvt->len_cvt * 2)) - 1;
166  for (i = cvt->len_cvt / sizeof (Uint8); i; --i, --src, --dst) {
167  const Sint16 val = (((Sint16) ((*src) ^ 0x80)) << 8);
168  *dst = ((Sint16) SDL_SwapBE16(val));
169  }
170 
171  cvt->len_cvt *= 2;
172  if (cvt->filters[++cvt->filter_index]) {
173  cvt->filters[cvt->filter_index] (cvt, AUDIO_S16MSB);
174  }
175 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_SwapBE16
#define SDL_SwapBE16(X)
Definition: SDL_endian.h:215
val
GLuint GLfloat * val
Definition: SDL_opengl_glext.h:1492
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
Uint8
uint8_t Uint8
An unsigned 8-bit integer type.
Definition: SDL_stdinc.h:139
i
return Display return Display Bool Bool int int int return Display XEvent Bool(*) XPointer return Display return Display Drawable _Xconst char unsigned int unsigned int return Display Pixmap Pixmap XColor XColor unsigned int unsigned int return Display _Xconst char char int char return Display Visual unsigned int int int char unsigned int unsigned int in i)
Definition: SDL_x11sym.h:42
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
AUDIO_S16MSB
#define AUDIO_S16MSB
Definition: SDL_audio.h:94
src
GLenum src
Definition: SDL_opengl_glext.h:1737
Sint16
int16_t Sint16
A signed 16-bit integer type.
Definition: SDL_stdinc.h:143
static void SDL_Convert_U8_to_S32LSB ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 178 of file SDL_audiotypecvt.c.

References AUDIO_S32LSB, SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, i, SDL_AudioCVT::len_cvt, SDL_SwapLE32, and SDLCALL.

179 {
180  int i;
181  const Uint8 *src;
182  Sint32 *dst;
183 
184 #if DEBUG_CONVERT
185  fprintf(stderr, "Converting AUDIO_U8 to AUDIO_S32LSB.\n");
186 #endif
187 
188  src = ((const Uint8 *) (cvt->buf + cvt->len_cvt)) - 1;
189  dst = ((Sint32 *) (cvt->buf + cvt->len_cvt * 4)) - 1;
190  for (i = cvt->len_cvt / sizeof (Uint8); i; --i, --src, --dst) {
191  const Sint32 val = (((Sint32) ((*src) ^ 0x80)) << 24);
192  *dst = ((Sint32) SDL_SwapLE32(val));
193  }
194 
195  cvt->len_cvt *= 4;
196  if (cvt->filters[++cvt->filter_index]) {
197  cvt->filters[cvt->filter_index] (cvt, AUDIO_S32LSB);
198  }
199 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
val
GLuint GLfloat * val
Definition: SDL_opengl_glext.h:1492
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
Uint8
uint8_t Uint8
An unsigned 8-bit integer type.
Definition: SDL_stdinc.h:139
SDL_SwapLE32
#define SDL_SwapLE32(X)
Definition: SDL_endian.h:212
AUDIO_S32LSB
#define AUDIO_S32LSB
Definition: SDL_audio.h:103
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
i
return Display return Display Bool Bool int int int return Display XEvent Bool(*) XPointer return Display return Display Drawable _Xconst char unsigned int unsigned int return Display Pixmap Pixmap XColor XColor unsigned int unsigned int return Display _Xconst char char int char return Display Visual unsigned int int int char unsigned int unsigned int in i)
Definition: SDL_x11sym.h:42
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Convert_U8_to_S32MSB ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 202 of file SDL_audiotypecvt.c.

References AUDIO_S32MSB, SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, i, SDL_AudioCVT::len_cvt, SDL_SwapBE32, and SDLCALL.

203 {
204  int i;
205  const Uint8 *src;
206  Sint32 *dst;
207 
208 #if DEBUG_CONVERT
209  fprintf(stderr, "Converting AUDIO_U8 to AUDIO_S32MSB.\n");
210 #endif
211 
212  src = ((const Uint8 *) (cvt->buf + cvt->len_cvt)) - 1;
213  dst = ((Sint32 *) (cvt->buf + cvt->len_cvt * 4)) - 1;
214  for (i = cvt->len_cvt / sizeof (Uint8); i; --i, --src, --dst) {
215  const Sint32 val = (((Sint32) ((*src) ^ 0x80)) << 24);
216  *dst = ((Sint32) SDL_SwapBE32(val));
217  }
218 
219  cvt->len_cvt *= 4;
220  if (cvt->filters[++cvt->filter_index]) {
221  cvt->filters[cvt->filter_index] (cvt, AUDIO_S32MSB);
222  }
223 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
AUDIO_S32MSB
#define AUDIO_S32MSB
Definition: SDL_audio.h:104
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_SwapBE32
#define SDL_SwapBE32(X)
Definition: SDL_endian.h:216
val
GLuint GLfloat * val
Definition: SDL_opengl_glext.h:1492
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
Uint8
uint8_t Uint8
An unsigned 8-bit integer type.
Definition: SDL_stdinc.h:139
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
i
return Display return Display Bool Bool int int int return Display XEvent Bool(*) XPointer return Display return Display Drawable _Xconst char unsigned int unsigned int return Display Pixmap Pixmap XColor XColor unsigned int unsigned int return Display _Xconst char char int char return Display Visual unsigned int int int char unsigned int unsigned int in i)
Definition: SDL_x11sym.h:42
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Convert_U8_to_S8 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 59 of file SDL_audiotypecvt.c.

References AUDIO_S8, SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, i, SDL_AudioCVT::len_cvt, and SDLCALL.

60 {
61  int i;
62  const Uint8 *src;
63  Sint8 *dst;
64 
65 #if DEBUG_CONVERT
66  fprintf(stderr, "Converting AUDIO_U8 to AUDIO_S8.\n");
67 #endif
68 
69  src = (const Uint8 *) cvt->buf;
70  dst = (Sint8 *) cvt->buf;
71  for (i = cvt->len_cvt / sizeof (Uint8); i; --i, ++src, ++dst) {
72  const Sint8 val = ((*src) ^ 0x80);
73  *dst = ((Sint8) val);
74  }
75 
76  if (cvt->filters[++cvt->filter_index]) {
77  cvt->filters[cvt->filter_index] (cvt, AUDIO_S8);
78  }
79 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
val
GLuint GLfloat * val
Definition: SDL_opengl_glext.h:1492
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
Sint8
int8_t Sint8
A signed 8-bit integer type.
Definition: SDL_stdinc.h:135
Uint8
uint8_t Uint8
An unsigned 8-bit integer type.
Definition: SDL_stdinc.h:139
i
return Display return Display Bool Bool int int int return Display XEvent Bool(*) XPointer return Display return Display Drawable _Xconst char unsigned int unsigned int return Display Pixmap Pixmap XColor XColor unsigned int unsigned int return Display _Xconst char char int char return Display Visual unsigned int int int char unsigned int unsigned int in i)
Definition: SDL_x11sym.h:42
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
AUDIO_S8
#define AUDIO_S8
Definition: SDL_audio.h:90
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Convert_U8_to_U16LSB ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 82 of file SDL_audiotypecvt.c.

References AUDIO_U16LSB, SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, i, SDL_AudioCVT::len_cvt, SDL_SwapLE16, and SDLCALL.

83 {
84  int i;
85  const Uint8 *src;
86  Uint16 *dst;
87 
88 #if DEBUG_CONVERT
89  fprintf(stderr, "Converting AUDIO_U8 to AUDIO_U16LSB.\n");
90 #endif
91 
92  src = ((const Uint8 *) (cvt->buf + cvt->len_cvt)) - 1;
93  dst = ((Uint16 *) (cvt->buf + cvt->len_cvt * 2)) - 1;
94  for (i = cvt->len_cvt / sizeof (Uint8); i; --i, --src, --dst) {
95  const Uint16 val = (((Uint16) *src) << 8);
96  *dst = SDL_SwapLE16(val);
97  }
98 
99  cvt->len_cvt *= 2;
100  if (cvt->filters[++cvt->filter_index]) {
101  cvt->filters[cvt->filter_index] (cvt, AUDIO_U16LSB);
102  }
103 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
AUDIO_U16LSB
#define AUDIO_U16LSB
Definition: SDL_audio.h:91
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
val
GLuint GLfloat * val
Definition: SDL_opengl_glext.h:1492
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
Uint8
uint8_t Uint8
An unsigned 8-bit integer type.
Definition: SDL_stdinc.h:139
i
return Display return Display Bool Bool int int int return Display XEvent Bool(*) XPointer return Display return Display Drawable _Xconst char unsigned int unsigned int return Display Pixmap Pixmap XColor XColor unsigned int unsigned int return Display _Xconst char char int char return Display Visual unsigned int int int char unsigned int unsigned int in i)
Definition: SDL_x11sym.h:42
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
Uint16
uint16_t Uint16
An unsigned 16-bit integer type.
Definition: SDL_stdinc.h:147
SDL_SwapLE16
#define SDL_SwapLE16(X)
Definition: SDL_endian.h:211
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Convert_U8_to_U16MSB ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 130 of file SDL_audiotypecvt.c.

References AUDIO_U16MSB, SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, i, SDL_AudioCVT::len_cvt, SDL_SwapBE16, and SDLCALL.

131 {
132  int i;
133  const Uint8 *src;
134  Uint16 *dst;
135 
136 #if DEBUG_CONVERT
137  fprintf(stderr, "Converting AUDIO_U8 to AUDIO_U16MSB.\n");
138 #endif
139 
140  src = ((const Uint8 *) (cvt->buf + cvt->len_cvt)) - 1;
141  dst = ((Uint16 *) (cvt->buf + cvt->len_cvt * 2)) - 1;
142  for (i = cvt->len_cvt / sizeof (Uint8); i; --i, --src, --dst) {
143  const Uint16 val = (((Uint16) *src) << 8);
144  *dst = SDL_SwapBE16(val);
145  }
146 
147  cvt->len_cvt *= 2;
148  if (cvt->filters[++cvt->filter_index]) {
149  cvt->filters[cvt->filter_index] (cvt, AUDIO_U16MSB);
150  }
151 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_SwapBE16
#define SDL_SwapBE16(X)
Definition: SDL_endian.h:215
val
GLuint GLfloat * val
Definition: SDL_opengl_glext.h:1492
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
Uint8
uint8_t Uint8
An unsigned 8-bit integer type.
Definition: SDL_stdinc.h:139
i
return Display return Display Bool Bool int int int return Display XEvent Bool(*) XPointer return Display return Display Drawable _Xconst char unsigned int unsigned int return Display Pixmap Pixmap XColor XColor unsigned int unsigned int return Display _Xconst char char int char return Display Visual unsigned int int int char unsigned int unsigned int in i)
Definition: SDL_x11sym.h:42
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
Uint16
uint16_t Uint16
An unsigned 16-bit integer type.
Definition: SDL_stdinc.h:147
src
GLenum src
Definition: SDL_opengl_glext.h:1737
AUDIO_U16MSB
#define AUDIO_U16MSB
Definition: SDL_audio.h:93
static void SDL_Downsample_F32LSB_1c ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 6168 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_AudioCVT::rate_incr, SDL_SwapFloatLE, and SDLCALL.

6169 {
6170 #if DEBUG_CONVERT
6171  fprintf(stderr, "Downsample arbitrary (x%f) AUDIO_F32LSB, 1 channels.\n", cvt->rate_incr);
6172 #endif
6173 
6174  const int srcsize = cvt->len_cvt - 64;
6175  const int dstsize = (int) (((double)(cvt->len_cvt/4)) * cvt->rate_incr) * 4;
6176  register int eps = 0;
6177  float *dst = (float *) cvt->buf;
6178  const float *src = (float *) cvt->buf;
6179  const float *target = (const float *) (cvt->buf + dstsize);
6180  float sample0 = SDL_SwapFloatLE(src[0]);
6181  float last_sample0 = sample0;
6182  while (dst < target) {
6183  src++;
6184  eps += dstsize;
6185  if ((eps << 1) >= srcsize) {
6186  dst[0] = SDL_SwapFloatLE(sample0);
6187  dst++;
6188  sample0 = (float) ((((double) SDL_SwapFloatLE(src[0])) + ((double) last_sample0)) * 0.5);
6189  last_sample0 = sample0;
6190  eps -= srcsize;
6191  }
6192  }
6193  cvt->len_cvt = dstsize;
6194  if (cvt->filters[++cvt->filter_index]) {
6195  cvt->filters[cvt->filter_index] (cvt, format);
6196  }
6197 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_SwapFloatLE
#define SDL_SwapFloatLE(X)
Definition: SDL_endian.h:214
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
SDL_AudioCVT::rate_incr
double rate_incr
Definition: SDL_audio.h:205
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Downsample_F32LSB_1c_x2 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 14006 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_SwapFloatLE, and SDLCALL.

14007 {
14008 #if DEBUG_CONVERT
14009  fprintf(stderr, "Downsample (x2) AUDIO_F32LSB, 1 channels.\n");
14010 #endif
14011 
14012  const int dstsize = cvt->len_cvt / 2;
14013  float *dst = (float *) cvt->buf;
14014  const float *src = (float *) cvt->buf;
14015  const float *target = (const float *) (cvt->buf + dstsize);
14016  double last_sample0 = (double) SDL_SwapFloatLE(src[0]);
14017  while (dst < target) {
14018  const double sample0 = (double) SDL_SwapFloatLE(src[0]);
14019  src += 2;
14020  dst[0] = (float) ((sample0 + last_sample0) * 0.5);
14021  last_sample0 = sample0;
14022  dst++;
14023  }
14024 
14025  cvt->len_cvt = dstsize;
14026  if (cvt->filters[++cvt->filter_index]) {
14027  cvt->filters[cvt->filter_index] (cvt, format);
14028  }
14029 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_SwapFloatLE
#define SDL_SwapFloatLE(X)
Definition: SDL_endian.h:214
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Downsample_F32LSB_1c_x4 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 14061 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_SwapFloatLE, and SDLCALL.

14062 {
14063 #if DEBUG_CONVERT
14064  fprintf(stderr, "Downsample (x4) AUDIO_F32LSB, 1 channels.\n");
14065 #endif
14066 
14067  const int dstsize = cvt->len_cvt / 4;
14068  float *dst = (float *) cvt->buf;
14069  const float *src = (float *) cvt->buf;
14070  const float *target = (const float *) (cvt->buf + dstsize);
14071  double last_sample0 = (double) SDL_SwapFloatLE(src[0]);
14072  while (dst < target) {
14073  const double sample0 = (double) SDL_SwapFloatLE(src[0]);
14074  src += 4;
14075  dst[0] = (float) ((sample0 + last_sample0) * 0.5);
14076  last_sample0 = sample0;
14077  dst++;
14078  }
14079 
14080  cvt->len_cvt = dstsize;
14081  if (cvt->filters[++cvt->filter_index]) {
14082  cvt->filters[cvt->filter_index] (cvt, format);
14083  }
14084 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_SwapFloatLE
#define SDL_SwapFloatLE(X)
Definition: SDL_endian.h:214
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Downsample_F32LSB_2c ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 6237 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_AudioCVT::rate_incr, SDL_SwapFloatLE, and SDLCALL.

6238 {
6239 #if DEBUG_CONVERT
6240  fprintf(stderr, "Downsample arbitrary (x%f) AUDIO_F32LSB, 2 channels.\n", cvt->rate_incr);
6241 #endif
6242 
6243  const int srcsize = cvt->len_cvt - 128;
6244  const int dstsize = (int) (((double)(cvt->len_cvt/8)) * cvt->rate_incr) * 8;
6245  register int eps = 0;
6246  float *dst = (float *) cvt->buf;
6247  const float *src = (float *) cvt->buf;
6248  const float *target = (const float *) (cvt->buf + dstsize);
6249  float sample0 = SDL_SwapFloatLE(src[0]);
6250  float sample1 = SDL_SwapFloatLE(src[1]);
6251  float last_sample0 = sample0;
6252  float last_sample1 = sample1;
6253  while (dst < target) {
6254  src += 2;
6255  eps += dstsize;
6256  if ((eps << 1) >= srcsize) {
6257  dst[0] = SDL_SwapFloatLE(sample0);
6258  dst[1] = SDL_SwapFloatLE(sample1);
6259  dst += 2;
6260  sample0 = (float) ((((double) SDL_SwapFloatLE(src[0])) + ((double) last_sample0)) * 0.5);
6261  sample1 = (float) ((((double) SDL_SwapFloatLE(src[1])) + ((double) last_sample1)) * 0.5);
6262  last_sample0 = sample0;
6263  last_sample1 = sample1;
6264  eps -= srcsize;
6265  }
6266  }
6267  cvt->len_cvt = dstsize;
6268  if (cvt->filters[++cvt->filter_index]) {
6269  cvt->filters[cvt->filter_index] (cvt, format);
6270  }
6271 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_SwapFloatLE
#define SDL_SwapFloatLE(X)
Definition: SDL_endian.h:214
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
SDL_AudioCVT::rate_incr
double rate_incr
Definition: SDL_audio.h:205
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Downsample_F32LSB_2c_x2 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 14119 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_SwapFloatLE, and SDLCALL.

14120 {
14121 #if DEBUG_CONVERT
14122  fprintf(stderr, "Downsample (x2) AUDIO_F32LSB, 2 channels.\n");
14123 #endif
14124 
14125  const int dstsize = cvt->len_cvt / 2;
14126  float *dst = (float *) cvt->buf;
14127  const float *src = (float *) cvt->buf;
14128  const float *target = (const float *) (cvt->buf + dstsize);
14129  double last_sample0 = (double) SDL_SwapFloatLE(src[0]);
14130  double last_sample1 = (double) SDL_SwapFloatLE(src[1]);
14131  while (dst < target) {
14132  const double sample0 = (double) SDL_SwapFloatLE(src[0]);
14133  const double sample1 = (double) SDL_SwapFloatLE(src[1]);
14134  src += 4;
14135  dst[0] = (float) ((sample0 + last_sample0) * 0.5);
14136  dst[1] = (float) ((sample1 + last_sample1) * 0.5);
14137  last_sample0 = sample0;
14138  last_sample1 = sample1;
14139  dst += 2;
14140  }
14141 
14142  cvt->len_cvt = dstsize;
14143  if (cvt->filters[++cvt->filter_index]) {
14144  cvt->filters[cvt->filter_index] (cvt, format);
14145  }
14146 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_SwapFloatLE
#define SDL_SwapFloatLE(X)
Definition: SDL_endian.h:214
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Downsample_F32LSB_2c_x4 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 14185 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_SwapFloatLE, and SDLCALL.

14186 {
14187 #if DEBUG_CONVERT
14188  fprintf(stderr, "Downsample (x4) AUDIO_F32LSB, 2 channels.\n");
14189 #endif
14190 
14191  const int dstsize = cvt->len_cvt / 4;
14192  float *dst = (float *) cvt->buf;
14193  const float *src = (float *) cvt->buf;
14194  const float *target = (const float *) (cvt->buf + dstsize);
14195  double last_sample0 = (double) SDL_SwapFloatLE(src[0]);
14196  double last_sample1 = (double) SDL_SwapFloatLE(src[1]);
14197  while (dst < target) {
14198  const double sample0 = (double) SDL_SwapFloatLE(src[0]);
14199  const double sample1 = (double) SDL_SwapFloatLE(src[1]);
14200  src += 8;
14201  dst[0] = (float) ((sample0 + last_sample0) * 0.5);
14202  dst[1] = (float) ((sample1 + last_sample1) * 0.5);
14203  last_sample0 = sample0;
14204  last_sample1 = sample1;
14205  dst += 2;
14206  }
14207 
14208  cvt->len_cvt = dstsize;
14209  if (cvt->filters[++cvt->filter_index]) {
14210  cvt->filters[cvt->filter_index] (cvt, format);
14211  }
14212 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_SwapFloatLE
#define SDL_SwapFloatLE(X)
Definition: SDL_endian.h:214
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Downsample_F32LSB_4c ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 6321 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_AudioCVT::rate_incr, SDL_SwapFloatLE, and SDLCALL.

6322 {
6323 #if DEBUG_CONVERT
6324  fprintf(stderr, "Downsample arbitrary (x%f) AUDIO_F32LSB, 4 channels.\n", cvt->rate_incr);
6325 #endif
6326 
6327  const int srcsize = cvt->len_cvt - 256;
6328  const int dstsize = (int) (((double)(cvt->len_cvt/16)) * cvt->rate_incr) * 16;
6329  register int eps = 0;
6330  float *dst = (float *) cvt->buf;
6331  const float *src = (float *) cvt->buf;
6332  const float *target = (const float *) (cvt->buf + dstsize);
6333  float sample0 = SDL_SwapFloatLE(src[0]);
6334  float sample1 = SDL_SwapFloatLE(src[1]);
6335  float sample2 = SDL_SwapFloatLE(src[2]);
6336  float sample3 = SDL_SwapFloatLE(src[3]);
6337  float last_sample0 = sample0;
6338  float last_sample1 = sample1;
6339  float last_sample2 = sample2;
6340  float last_sample3 = sample3;
6341  while (dst < target) {
6342  src += 4;
6343  eps += dstsize;
6344  if ((eps << 1) >= srcsize) {
6345  dst[0] = SDL_SwapFloatLE(sample0);
6346  dst[1] = SDL_SwapFloatLE(sample1);
6347  dst[2] = SDL_SwapFloatLE(sample2);
6348  dst[3] = SDL_SwapFloatLE(sample3);
6349  dst += 4;
6350  sample0 = (float) ((((double) SDL_SwapFloatLE(src[0])) + ((double) last_sample0)) * 0.5);
6351  sample1 = (float) ((((double) SDL_SwapFloatLE(src[1])) + ((double) last_sample1)) * 0.5);
6352  sample2 = (float) ((((double) SDL_SwapFloatLE(src[2])) + ((double) last_sample2)) * 0.5);
6353  sample3 = (float) ((((double) SDL_SwapFloatLE(src[3])) + ((double) last_sample3)) * 0.5);
6354  last_sample0 = sample0;
6355  last_sample1 = sample1;
6356  last_sample2 = sample2;
6357  last_sample3 = sample3;
6358  eps -= srcsize;
6359  }
6360  }
6361  cvt->len_cvt = dstsize;
6362  if (cvt->filters[++cvt->filter_index]) {
6363  cvt->filters[cvt->filter_index] (cvt, format);
6364  }
6365 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_SwapFloatLE
#define SDL_SwapFloatLE(X)
Definition: SDL_endian.h:214
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
SDL_AudioCVT::rate_incr
double rate_incr
Definition: SDL_audio.h:205
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Downsample_F32LSB_4c_x2 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 14257 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_SwapFloatLE, and SDLCALL.

14258 {
14259 #if DEBUG_CONVERT
14260  fprintf(stderr, "Downsample (x2) AUDIO_F32LSB, 4 channels.\n");
14261 #endif
14262 
14263  const int dstsize = cvt->len_cvt / 2;
14264  float *dst = (float *) cvt->buf;
14265  const float *src = (float *) cvt->buf;
14266  const float *target = (const float *) (cvt->buf + dstsize);
14267  double last_sample0 = (double) SDL_SwapFloatLE(src[0]);
14268  double last_sample1 = (double) SDL_SwapFloatLE(src[1]);
14269  double last_sample2 = (double) SDL_SwapFloatLE(src[2]);
14270  double last_sample3 = (double) SDL_SwapFloatLE(src[3]);
14271  while (dst < target) {
14272  const double sample0 = (double) SDL_SwapFloatLE(src[0]);
14273  const double sample1 = (double) SDL_SwapFloatLE(src[1]);
14274  const double sample2 = (double) SDL_SwapFloatLE(src[2]);
14275  const double sample3 = (double) SDL_SwapFloatLE(src[3]);
14276  src += 8;
14277  dst[0] = (float) ((sample0 + last_sample0) * 0.5);
14278  dst[1] = (float) ((sample1 + last_sample1) * 0.5);
14279  dst[2] = (float) ((sample2 + last_sample2) * 0.5);
14280  dst[3] = (float) ((sample3 + last_sample3) * 0.5);
14281  last_sample0 = sample0;
14282  last_sample1 = sample1;
14283  last_sample2 = sample2;
14284  last_sample3 = sample3;
14285  dst += 4;
14286  }
14287 
14288  cvt->len_cvt = dstsize;
14289  if (cvt->filters[++cvt->filter_index]) {
14290  cvt->filters[cvt->filter_index] (cvt, format);
14291  }
14292 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_SwapFloatLE
#define SDL_SwapFloatLE(X)
Definition: SDL_endian.h:214
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Downsample_F32LSB_4c_x4 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 14345 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_SwapFloatLE, and SDLCALL.

14346 {
14347 #if DEBUG_CONVERT
14348  fprintf(stderr, "Downsample (x4) AUDIO_F32LSB, 4 channels.\n");
14349 #endif
14350 
14351  const int dstsize = cvt->len_cvt / 4;
14352  float *dst = (float *) cvt->buf;
14353  const float *src = (float *) cvt->buf;
14354  const float *target = (const float *) (cvt->buf + dstsize);
14355  double last_sample0 = (double) SDL_SwapFloatLE(src[0]);
14356  double last_sample1 = (double) SDL_SwapFloatLE(src[1]);
14357  double last_sample2 = (double) SDL_SwapFloatLE(src[2]);
14358  double last_sample3 = (double) SDL_SwapFloatLE(src[3]);
14359  while (dst < target) {
14360  const double sample0 = (double) SDL_SwapFloatLE(src[0]);
14361  const double sample1 = (double) SDL_SwapFloatLE(src[1]);
14362  const double sample2 = (double) SDL_SwapFloatLE(src[2]);
14363  const double sample3 = (double) SDL_SwapFloatLE(src[3]);
14364  src += 16;
14365  dst[0] = (float) ((sample0 + last_sample0) * 0.5);
14366  dst[1] = (float) ((sample1 + last_sample1) * 0.5);
14367  dst[2] = (float) ((sample2 + last_sample2) * 0.5);
14368  dst[3] = (float) ((sample3 + last_sample3) * 0.5);
14369  last_sample0 = sample0;
14370  last_sample1 = sample1;
14371  last_sample2 = sample2;
14372  last_sample3 = sample3;
14373  dst += 4;
14374  }
14375 
14376  cvt->len_cvt = dstsize;
14377  if (cvt->filters[++cvt->filter_index]) {
14378  cvt->filters[cvt->filter_index] (cvt, format);
14379  }
14380 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_SwapFloatLE
#define SDL_SwapFloatLE(X)
Definition: SDL_endian.h:214
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Downsample_F32LSB_6c ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 6425 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_AudioCVT::rate_incr, SDL_SwapFloatLE, and SDLCALL.

6426 {
6427 #if DEBUG_CONVERT
6428  fprintf(stderr, "Downsample arbitrary (x%f) AUDIO_F32LSB, 6 channels.\n", cvt->rate_incr);
6429 #endif
6430 
6431  const int srcsize = cvt->len_cvt - 384;
6432  const int dstsize = (int) (((double)(cvt->len_cvt/24)) * cvt->rate_incr) * 24;
6433  register int eps = 0;
6434  float *dst = (float *) cvt->buf;
6435  const float *src = (float *) cvt->buf;
6436  const float *target = (const float *) (cvt->buf + dstsize);
6437  float sample0 = SDL_SwapFloatLE(src[0]);
6438  float sample1 = SDL_SwapFloatLE(src[1]);
6439  float sample2 = SDL_SwapFloatLE(src[2]);
6440  float sample3 = SDL_SwapFloatLE(src[3]);
6441  float sample4 = SDL_SwapFloatLE(src[4]);
6442  float sample5 = SDL_SwapFloatLE(src[5]);
6443  float last_sample0 = sample0;
6444  float last_sample1 = sample1;
6445  float last_sample2 = sample2;
6446  float last_sample3 = sample3;
6447  float last_sample4 = sample4;
6448  float last_sample5 = sample5;
6449  while (dst < target) {
6450  src += 6;
6451  eps += dstsize;
6452  if ((eps << 1) >= srcsize) {
6453  dst[0] = SDL_SwapFloatLE(sample0);
6454  dst[1] = SDL_SwapFloatLE(sample1);
6455  dst[2] = SDL_SwapFloatLE(sample2);
6456  dst[3] = SDL_SwapFloatLE(sample3);
6457  dst[4] = SDL_SwapFloatLE(sample4);
6458  dst[5] = SDL_SwapFloatLE(sample5);
6459  dst += 6;
6460  sample0 = (float) ((((double) SDL_SwapFloatLE(src[0])) + ((double) last_sample0)) * 0.5);
6461  sample1 = (float) ((((double) SDL_SwapFloatLE(src[1])) + ((double) last_sample1)) * 0.5);
6462  sample2 = (float) ((((double) SDL_SwapFloatLE(src[2])) + ((double) last_sample2)) * 0.5);
6463  sample3 = (float) ((((double) SDL_SwapFloatLE(src[3])) + ((double) last_sample3)) * 0.5);
6464  sample4 = (float) ((((double) SDL_SwapFloatLE(src[4])) + ((double) last_sample4)) * 0.5);
6465  sample5 = (float) ((((double) SDL_SwapFloatLE(src[5])) + ((double) last_sample5)) * 0.5);
6466  last_sample0 = sample0;
6467  last_sample1 = sample1;
6468  last_sample2 = sample2;
6469  last_sample3 = sample3;
6470  last_sample4 = sample4;
6471  last_sample5 = sample5;
6472  eps -= srcsize;
6473  }
6474  }
6475  cvt->len_cvt = dstsize;
6476  if (cvt->filters[++cvt->filter_index]) {
6477  cvt->filters[cvt->filter_index] (cvt, format);
6478  }
6479 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_SwapFloatLE
#define SDL_SwapFloatLE(X)
Definition: SDL_endian.h:214
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
SDL_AudioCVT::rate_incr
double rate_incr
Definition: SDL_audio.h:205
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Downsample_F32LSB_6c_x2 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 14435 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_SwapFloatLE, and SDLCALL.

14436 {
14437 #if DEBUG_CONVERT
14438  fprintf(stderr, "Downsample (x2) AUDIO_F32LSB, 6 channels.\n");
14439 #endif
14440 
14441  const int dstsize = cvt->len_cvt / 2;
14442  float *dst = (float *) cvt->buf;
14443  const float *src = (float *) cvt->buf;
14444  const float *target = (const float *) (cvt->buf + dstsize);
14445  double last_sample0 = (double) SDL_SwapFloatLE(src[0]);
14446  double last_sample1 = (double) SDL_SwapFloatLE(src[1]);
14447  double last_sample2 = (double) SDL_SwapFloatLE(src[2]);
14448  double last_sample3 = (double) SDL_SwapFloatLE(src[3]);
14449  double last_sample4 = (double) SDL_SwapFloatLE(src[4]);
14450  double last_sample5 = (double) SDL_SwapFloatLE(src[5]);
14451  while (dst < target) {
14452  const double sample0 = (double) SDL_SwapFloatLE(src[0]);
14453  const double sample1 = (double) SDL_SwapFloatLE(src[1]);
14454  const double sample2 = (double) SDL_SwapFloatLE(src[2]);
14455  const double sample3 = (double) SDL_SwapFloatLE(src[3]);
14456  const double sample4 = (double) SDL_SwapFloatLE(src[4]);
14457  const double sample5 = (double) SDL_SwapFloatLE(src[5]);
14458  src += 12;
14459  dst[0] = (float) ((sample0 + last_sample0) * 0.5);
14460  dst[1] = (float) ((sample1 + last_sample1) * 0.5);
14461  dst[2] = (float) ((sample2 + last_sample2) * 0.5);
14462  dst[3] = (float) ((sample3 + last_sample3) * 0.5);
14463  dst[4] = (float) ((sample4 + last_sample4) * 0.5);
14464  dst[5] = (float) ((sample5 + last_sample5) * 0.5);
14465  last_sample0 = sample0;
14466  last_sample1 = sample1;
14467  last_sample2 = sample2;
14468  last_sample3 = sample3;
14469  last_sample4 = sample4;
14470  last_sample5 = sample5;
14471  dst += 6;
14472  }
14473 
14474  cvt->len_cvt = dstsize;
14475  if (cvt->filters[++cvt->filter_index]) {
14476  cvt->filters[cvt->filter_index] (cvt, format);
14477  }
14478 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_SwapFloatLE
#define SDL_SwapFloatLE(X)
Definition: SDL_endian.h:214
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Downsample_F32LSB_6c_x4 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 14545 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_SwapFloatLE, and SDLCALL.

14546 {
14547 #if DEBUG_CONVERT
14548  fprintf(stderr, "Downsample (x4) AUDIO_F32LSB, 6 channels.\n");
14549 #endif
14550 
14551  const int dstsize = cvt->len_cvt / 4;
14552  float *dst = (float *) cvt->buf;
14553  const float *src = (float *) cvt->buf;
14554  const float *target = (const float *) (cvt->buf + dstsize);
14555  double last_sample0 = (double) SDL_SwapFloatLE(src[0]);
14556  double last_sample1 = (double) SDL_SwapFloatLE(src[1]);
14557  double last_sample2 = (double) SDL_SwapFloatLE(src[2]);
14558  double last_sample3 = (double) SDL_SwapFloatLE(src[3]);
14559  double last_sample4 = (double) SDL_SwapFloatLE(src[4]);
14560  double last_sample5 = (double) SDL_SwapFloatLE(src[5]);
14561  while (dst < target) {
14562  const double sample0 = (double) SDL_SwapFloatLE(src[0]);
14563  const double sample1 = (double) SDL_SwapFloatLE(src[1]);
14564  const double sample2 = (double) SDL_SwapFloatLE(src[2]);
14565  const double sample3 = (double) SDL_SwapFloatLE(src[3]);
14566  const double sample4 = (double) SDL_SwapFloatLE(src[4]);
14567  const double sample5 = (double) SDL_SwapFloatLE(src[5]);
14568  src += 24;
14569  dst[0] = (float) ((sample0 + last_sample0) * 0.5);
14570  dst[1] = (float) ((sample1 + last_sample1) * 0.5);
14571  dst[2] = (float) ((sample2 + last_sample2) * 0.5);
14572  dst[3] = (float) ((sample3 + last_sample3) * 0.5);
14573  dst[4] = (float) ((sample4 + last_sample4) * 0.5);
14574  dst[5] = (float) ((sample5 + last_sample5) * 0.5);
14575  last_sample0 = sample0;
14576  last_sample1 = sample1;
14577  last_sample2 = sample2;
14578  last_sample3 = sample3;
14579  last_sample4 = sample4;
14580  last_sample5 = sample5;
14581  dst += 6;
14582  }
14583 
14584  cvt->len_cvt = dstsize;
14585  if (cvt->filters[++cvt->filter_index]) {
14586  cvt->filters[cvt->filter_index] (cvt, format);
14587  }
14588 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_SwapFloatLE
#define SDL_SwapFloatLE(X)
Definition: SDL_endian.h:214
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Downsample_F32LSB_8c ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 6549 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_AudioCVT::rate_incr, SDL_SwapFloatLE, and SDLCALL.

6550 {
6551 #if DEBUG_CONVERT
6552  fprintf(stderr, "Downsample arbitrary (x%f) AUDIO_F32LSB, 8 channels.\n", cvt->rate_incr);
6553 #endif
6554 
6555  const int srcsize = cvt->len_cvt - 512;
6556  const int dstsize = (int) (((double)(cvt->len_cvt/32)) * cvt->rate_incr) * 32;
6557  register int eps = 0;
6558  float *dst = (float *) cvt->buf;
6559  const float *src = (float *) cvt->buf;
6560  const float *target = (const float *) (cvt->buf + dstsize);
6561  float sample0 = SDL_SwapFloatLE(src[0]);
6562  float sample1 = SDL_SwapFloatLE(src[1]);
6563  float sample2 = SDL_SwapFloatLE(src[2]);
6564  float sample3 = SDL_SwapFloatLE(src[3]);
6565  float sample4 = SDL_SwapFloatLE(src[4]);
6566  float sample5 = SDL_SwapFloatLE(src[5]);
6567  float sample6 = SDL_SwapFloatLE(src[6]);
6568  float sample7 = SDL_SwapFloatLE(src[7]);
6569  float last_sample0 = sample0;
6570  float last_sample1 = sample1;
6571  float last_sample2 = sample2;
6572  float last_sample3 = sample3;
6573  float last_sample4 = sample4;
6574  float last_sample5 = sample5;
6575  float last_sample6 = sample6;
6576  float last_sample7 = sample7;
6577  while (dst < target) {
6578  src += 8;
6579  eps += dstsize;
6580  if ((eps << 1) >= srcsize) {
6581  dst[0] = SDL_SwapFloatLE(sample0);
6582  dst[1] = SDL_SwapFloatLE(sample1);
6583  dst[2] = SDL_SwapFloatLE(sample2);
6584  dst[3] = SDL_SwapFloatLE(sample3);
6585  dst[4] = SDL_SwapFloatLE(sample4);
6586  dst[5] = SDL_SwapFloatLE(sample5);
6587  dst[6] = SDL_SwapFloatLE(sample6);
6588  dst[7] = SDL_SwapFloatLE(sample7);
6589  dst += 8;
6590  sample0 = (float) ((((double) SDL_SwapFloatLE(src[0])) + ((double) last_sample0)) * 0.5);
6591  sample1 = (float) ((((double) SDL_SwapFloatLE(src[1])) + ((double) last_sample1)) * 0.5);
6592  sample2 = (float) ((((double) SDL_SwapFloatLE(src[2])) + ((double) last_sample2)) * 0.5);
6593  sample3 = (float) ((((double) SDL_SwapFloatLE(src[3])) + ((double) last_sample3)) * 0.5);
6594  sample4 = (float) ((((double) SDL_SwapFloatLE(src[4])) + ((double) last_sample4)) * 0.5);
6595  sample5 = (float) ((((double) SDL_SwapFloatLE(src[5])) + ((double) last_sample5)) * 0.5);
6596  sample6 = (float) ((((double) SDL_SwapFloatLE(src[6])) + ((double) last_sample6)) * 0.5);
6597  sample7 = (float) ((((double) SDL_SwapFloatLE(src[7])) + ((double) last_sample7)) * 0.5);
6598  last_sample0 = sample0;
6599  last_sample1 = sample1;
6600  last_sample2 = sample2;
6601  last_sample3 = sample3;
6602  last_sample4 = sample4;
6603  last_sample5 = sample5;
6604  last_sample6 = sample6;
6605  last_sample7 = sample7;
6606  eps -= srcsize;
6607  }
6608  }
6609  cvt->len_cvt = dstsize;
6610  if (cvt->filters[++cvt->filter_index]) {
6611  cvt->filters[cvt->filter_index] (cvt, format);
6612  }
6613 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_SwapFloatLE
#define SDL_SwapFloatLE(X)
Definition: SDL_endian.h:214
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
SDL_AudioCVT::rate_incr
double rate_incr
Definition: SDL_audio.h:205
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Downsample_F32LSB_8c_x2 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 14653 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_SwapFloatLE, and SDLCALL.

14654 {
14655 #if DEBUG_CONVERT
14656  fprintf(stderr, "Downsample (x2) AUDIO_F32LSB, 8 channels.\n");
14657 #endif
14658 
14659  const int dstsize = cvt->len_cvt / 2;
14660  float *dst = (float *) cvt->buf;
14661  const float *src = (float *) cvt->buf;
14662  const float *target = (const float *) (cvt->buf + dstsize);
14663  double last_sample0 = (double) SDL_SwapFloatLE(src[0]);
14664  double last_sample1 = (double) SDL_SwapFloatLE(src[1]);
14665  double last_sample2 = (double) SDL_SwapFloatLE(src[2]);
14666  double last_sample3 = (double) SDL_SwapFloatLE(src[3]);
14667  double last_sample4 = (double) SDL_SwapFloatLE(src[4]);
14668  double last_sample5 = (double) SDL_SwapFloatLE(src[5]);
14669  double last_sample6 = (double) SDL_SwapFloatLE(src[6]);
14670  double last_sample7 = (double) SDL_SwapFloatLE(src[7]);
14671  while (dst < target) {
14672  const double sample0 = (double) SDL_SwapFloatLE(src[0]);
14673  const double sample1 = (double) SDL_SwapFloatLE(src[1]);
14674  const double sample2 = (double) SDL_SwapFloatLE(src[2]);
14675  const double sample3 = (double) SDL_SwapFloatLE(src[3]);
14676  const double sample4 = (double) SDL_SwapFloatLE(src[4]);
14677  const double sample5 = (double) SDL_SwapFloatLE(src[5]);
14678  const double sample6 = (double) SDL_SwapFloatLE(src[6]);
14679  const double sample7 = (double) SDL_SwapFloatLE(src[7]);
14680  src += 16;
14681  dst[0] = (float) ((sample0 + last_sample0) * 0.5);
14682  dst[1] = (float) ((sample1 + last_sample1) * 0.5);
14683  dst[2] = (float) ((sample2 + last_sample2) * 0.5);
14684  dst[3] = (float) ((sample3 + last_sample3) * 0.5);
14685  dst[4] = (float) ((sample4 + last_sample4) * 0.5);
14686  dst[5] = (float) ((sample5 + last_sample5) * 0.5);
14687  dst[6] = (float) ((sample6 + last_sample6) * 0.5);
14688  dst[7] = (float) ((sample7 + last_sample7) * 0.5);
14689  last_sample0 = sample0;
14690  last_sample1 = sample1;
14691  last_sample2 = sample2;
14692  last_sample3 = sample3;
14693  last_sample4 = sample4;
14694  last_sample5 = sample5;
14695  last_sample6 = sample6;
14696  last_sample7 = sample7;
14697  dst += 8;
14698  }
14699 
14700  cvt->len_cvt = dstsize;
14701  if (cvt->filters[++cvt->filter_index]) {
14702  cvt->filters[cvt->filter_index] (cvt, format);
14703  }
14704 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_SwapFloatLE
#define SDL_SwapFloatLE(X)
Definition: SDL_endian.h:214
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Downsample_F32LSB_8c_x4 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 14785 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_SwapFloatLE, and SDLCALL.

14786 {
14787 #if DEBUG_CONVERT
14788  fprintf(stderr, "Downsample (x4) AUDIO_F32LSB, 8 channels.\n");
14789 #endif
14790 
14791  const int dstsize = cvt->len_cvt / 4;
14792  float *dst = (float *) cvt->buf;
14793  const float *src = (float *) cvt->buf;
14794  const float *target = (const float *) (cvt->buf + dstsize);
14795  double last_sample0 = (double) SDL_SwapFloatLE(src[0]);
14796  double last_sample1 = (double) SDL_SwapFloatLE(src[1]);
14797  double last_sample2 = (double) SDL_SwapFloatLE(src[2]);
14798  double last_sample3 = (double) SDL_SwapFloatLE(src[3]);
14799  double last_sample4 = (double) SDL_SwapFloatLE(src[4]);
14800  double last_sample5 = (double) SDL_SwapFloatLE(src[5]);
14801  double last_sample6 = (double) SDL_SwapFloatLE(src[6]);
14802  double last_sample7 = (double) SDL_SwapFloatLE(src[7]);
14803  while (dst < target) {
14804  const double sample0 = (double) SDL_SwapFloatLE(src[0]);
14805  const double sample1 = (double) SDL_SwapFloatLE(src[1]);
14806  const double sample2 = (double) SDL_SwapFloatLE(src[2]);
14807  const double sample3 = (double) SDL_SwapFloatLE(src[3]);
14808  const double sample4 = (double) SDL_SwapFloatLE(src[4]);
14809  const double sample5 = (double) SDL_SwapFloatLE(src[5]);
14810  const double sample6 = (double) SDL_SwapFloatLE(src[6]);
14811  const double sample7 = (double) SDL_SwapFloatLE(src[7]);
14812  src += 32;
14813  dst[0] = (float) ((sample0 + last_sample0) * 0.5);
14814  dst[1] = (float) ((sample1 + last_sample1) * 0.5);
14815  dst[2] = (float) ((sample2 + last_sample2) * 0.5);
14816  dst[3] = (float) ((sample3 + last_sample3) * 0.5);
14817  dst[4] = (float) ((sample4 + last_sample4) * 0.5);
14818  dst[5] = (float) ((sample5 + last_sample5) * 0.5);
14819  dst[6] = (float) ((sample6 + last_sample6) * 0.5);
14820  dst[7] = (float) ((sample7 + last_sample7) * 0.5);
14821  last_sample0 = sample0;
14822  last_sample1 = sample1;
14823  last_sample2 = sample2;
14824  last_sample3 = sample3;
14825  last_sample4 = sample4;
14826  last_sample5 = sample5;
14827  last_sample6 = sample6;
14828  last_sample7 = sample7;
14829  dst += 8;
14830  }
14831 
14832  cvt->len_cvt = dstsize;
14833  if (cvt->filters[++cvt->filter_index]) {
14834  cvt->filters[cvt->filter_index] (cvt, format);
14835  }
14836 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_SwapFloatLE
#define SDL_SwapFloatLE(X)
Definition: SDL_endian.h:214
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Downsample_F32MSB_1c ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 6648 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_AudioCVT::rate_incr, SDL_SwapFloatBE, and SDLCALL.

6649 {
6650 #if DEBUG_CONVERT
6651  fprintf(stderr, "Downsample arbitrary (x%f) AUDIO_F32MSB, 1 channels.\n", cvt->rate_incr);
6652 #endif
6653 
6654  const int srcsize = cvt->len_cvt - 64;
6655  const int dstsize = (int) (((double)(cvt->len_cvt/4)) * cvt->rate_incr) * 4;
6656  register int eps = 0;
6657  float *dst = (float *) cvt->buf;
6658  const float *src = (float *) cvt->buf;
6659  const float *target = (const float *) (cvt->buf + dstsize);
6660  float sample0 = SDL_SwapFloatBE(src[0]);
6661  float last_sample0 = sample0;
6662  while (dst < target) {
6663  src++;
6664  eps += dstsize;
6665  if ((eps << 1) >= srcsize) {
6666  dst[0] = SDL_SwapFloatBE(sample0);
6667  dst++;
6668  sample0 = (float) ((((double) SDL_SwapFloatBE(src[0])) + ((double) last_sample0)) * 0.5);
6669  last_sample0 = sample0;
6670  eps -= srcsize;
6671  }
6672  }
6673  cvt->len_cvt = dstsize;
6674  if (cvt->filters[++cvt->filter_index]) {
6675  cvt->filters[cvt->filter_index] (cvt, format);
6676  }
6677 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_SwapFloatBE
#define SDL_SwapFloatBE(X)
Definition: SDL_endian.h:218
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
SDL_AudioCVT::rate_incr
double rate_incr
Definition: SDL_audio.h:205
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Downsample_F32MSB_1c_x2 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 14866 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_SwapFloatBE, and SDLCALL.

14867 {
14868 #if DEBUG_CONVERT
14869  fprintf(stderr, "Downsample (x2) AUDIO_F32MSB, 1 channels.\n");
14870 #endif
14871 
14872  const int dstsize = cvt->len_cvt / 2;
14873  float *dst = (float *) cvt->buf;
14874  const float *src = (float *) cvt->buf;
14875  const float *target = (const float *) (cvt->buf + dstsize);
14876  double last_sample0 = (double) SDL_SwapFloatBE(src[0]);
14877  while (dst < target) {
14878  const double sample0 = (double) SDL_SwapFloatBE(src[0]);
14879  src += 2;
14880  dst[0] = (float) ((sample0 + last_sample0) * 0.5);
14881  last_sample0 = sample0;
14882  dst++;
14883  }
14884 
14885  cvt->len_cvt = dstsize;
14886  if (cvt->filters[++cvt->filter_index]) {
14887  cvt->filters[cvt->filter_index] (cvt, format);
14888  }
14889 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_SwapFloatBE
#define SDL_SwapFloatBE(X)
Definition: SDL_endian.h:218
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Downsample_F32MSB_1c_x4 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 14921 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_SwapFloatBE, and SDLCALL.

14922 {
14923 #if DEBUG_CONVERT
14924  fprintf(stderr, "Downsample (x4) AUDIO_F32MSB, 1 channels.\n");
14925 #endif
14926 
14927  const int dstsize = cvt->len_cvt / 4;
14928  float *dst = (float *) cvt->buf;
14929  const float *src = (float *) cvt->buf;
14930  const float *target = (const float *) (cvt->buf + dstsize);
14931  double last_sample0 = (double) SDL_SwapFloatBE(src[0]);
14932  while (dst < target) {
14933  const double sample0 = (double) SDL_SwapFloatBE(src[0]);
14934  src += 4;
14935  dst[0] = (float) ((sample0 + last_sample0) * 0.5);
14936  last_sample0 = sample0;
14937  dst++;
14938  }
14939 
14940  cvt->len_cvt = dstsize;
14941  if (cvt->filters[++cvt->filter_index]) {
14942  cvt->filters[cvt->filter_index] (cvt, format);
14943  }
14944 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_SwapFloatBE
#define SDL_SwapFloatBE(X)
Definition: SDL_endian.h:218
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Downsample_F32MSB_2c ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 6717 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_AudioCVT::rate_incr, SDL_SwapFloatBE, and SDLCALL.

6718 {
6719 #if DEBUG_CONVERT
6720  fprintf(stderr, "Downsample arbitrary (x%f) AUDIO_F32MSB, 2 channels.\n", cvt->rate_incr);
6721 #endif
6722 
6723  const int srcsize = cvt->len_cvt - 128;
6724  const int dstsize = (int) (((double)(cvt->len_cvt/8)) * cvt->rate_incr) * 8;
6725  register int eps = 0;
6726  float *dst = (float *) cvt->buf;
6727  const float *src = (float *) cvt->buf;
6728  const float *target = (const float *) (cvt->buf + dstsize);
6729  float sample0 = SDL_SwapFloatBE(src[0]);
6730  float sample1 = SDL_SwapFloatBE(src[1]);
6731  float last_sample0 = sample0;
6732  float last_sample1 = sample1;
6733  while (dst < target) {
6734  src += 2;
6735  eps += dstsize;
6736  if ((eps << 1) >= srcsize) {
6737  dst[0] = SDL_SwapFloatBE(sample0);
6738  dst[1] = SDL_SwapFloatBE(sample1);
6739  dst += 2;
6740  sample0 = (float) ((((double) SDL_SwapFloatBE(src[0])) + ((double) last_sample0)) * 0.5);
6741  sample1 = (float) ((((double) SDL_SwapFloatBE(src[1])) + ((double) last_sample1)) * 0.5);
6742  last_sample0 = sample0;
6743  last_sample1 = sample1;
6744  eps -= srcsize;
6745  }
6746  }
6747  cvt->len_cvt = dstsize;
6748  if (cvt->filters[++cvt->filter_index]) {
6749  cvt->filters[cvt->filter_index] (cvt, format);
6750  }
6751 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_SwapFloatBE
#define SDL_SwapFloatBE(X)
Definition: SDL_endian.h:218
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
SDL_AudioCVT::rate_incr
double rate_incr
Definition: SDL_audio.h:205
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Downsample_F32MSB_2c_x2 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 14979 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_SwapFloatBE, and SDLCALL.

14980 {
14981 #if DEBUG_CONVERT
14982  fprintf(stderr, "Downsample (x2) AUDIO_F32MSB, 2 channels.\n");
14983 #endif
14984 
14985  const int dstsize = cvt->len_cvt / 2;
14986  float *dst = (float *) cvt->buf;
14987  const float *src = (float *) cvt->buf;
14988  const float *target = (const float *) (cvt->buf + dstsize);
14989  double last_sample0 = (double) SDL_SwapFloatBE(src[0]);
14990  double last_sample1 = (double) SDL_SwapFloatBE(src[1]);
14991  while (dst < target) {
14992  const double sample0 = (double) SDL_SwapFloatBE(src[0]);
14993  const double sample1 = (double) SDL_SwapFloatBE(src[1]);
14994  src += 4;
14995  dst[0] = (float) ((sample0 + last_sample0) * 0.5);
14996  dst[1] = (float) ((sample1 + last_sample1) * 0.5);
14997  last_sample0 = sample0;
14998  last_sample1 = sample1;
14999  dst += 2;
15000  }
15001 
15002  cvt->len_cvt = dstsize;
15003  if (cvt->filters[++cvt->filter_index]) {
15004  cvt->filters[cvt->filter_index] (cvt, format);
15005  }
15006 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_SwapFloatBE
#define SDL_SwapFloatBE(X)
Definition: SDL_endian.h:218
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Downsample_F32MSB_2c_x4 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 15045 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_SwapFloatBE, and SDLCALL.

15046 {
15047 #if DEBUG_CONVERT
15048  fprintf(stderr, "Downsample (x4) AUDIO_F32MSB, 2 channels.\n");
15049 #endif
15050 
15051  const int dstsize = cvt->len_cvt / 4;
15052  float *dst = (float *) cvt->buf;
15053  const float *src = (float *) cvt->buf;
15054  const float *target = (const float *) (cvt->buf + dstsize);
15055  double last_sample0 = (double) SDL_SwapFloatBE(src[0]);
15056  double last_sample1 = (double) SDL_SwapFloatBE(src[1]);
15057  while (dst < target) {
15058  const double sample0 = (double) SDL_SwapFloatBE(src[0]);
15059  const double sample1 = (double) SDL_SwapFloatBE(src[1]);
15060  src += 8;
15061  dst[0] = (float) ((sample0 + last_sample0) * 0.5);
15062  dst[1] = (float) ((sample1 + last_sample1) * 0.5);
15063  last_sample0 = sample0;
15064  last_sample1 = sample1;
15065  dst += 2;
15066  }
15067 
15068  cvt->len_cvt = dstsize;
15069  if (cvt->filters[++cvt->filter_index]) {
15070  cvt->filters[cvt->filter_index] (cvt, format);
15071  }
15072 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_SwapFloatBE
#define SDL_SwapFloatBE(X)
Definition: SDL_endian.h:218
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Downsample_F32MSB_4c ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 6801 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_AudioCVT::rate_incr, SDL_SwapFloatBE, and SDLCALL.

6802 {
6803 #if DEBUG_CONVERT
6804  fprintf(stderr, "Downsample arbitrary (x%f) AUDIO_F32MSB, 4 channels.\n", cvt->rate_incr);
6805 #endif
6806 
6807  const int srcsize = cvt->len_cvt - 256;
6808  const int dstsize = (int) (((double)(cvt->len_cvt/16)) * cvt->rate_incr) * 16;
6809  register int eps = 0;
6810  float *dst = (float *) cvt->buf;
6811  const float *src = (float *) cvt->buf;
6812  const float *target = (const float *) (cvt->buf + dstsize);
6813  float sample0 = SDL_SwapFloatBE(src[0]);
6814  float sample1 = SDL_SwapFloatBE(src[1]);
6815  float sample2 = SDL_SwapFloatBE(src[2]);
6816  float sample3 = SDL_SwapFloatBE(src[3]);
6817  float last_sample0 = sample0;
6818  float last_sample1 = sample1;
6819  float last_sample2 = sample2;
6820  float last_sample3 = sample3;
6821  while (dst < target) {
6822  src += 4;
6823  eps += dstsize;
6824  if ((eps << 1) >= srcsize) {
6825  dst[0] = SDL_SwapFloatBE(sample0);
6826  dst[1] = SDL_SwapFloatBE(sample1);
6827  dst[2] = SDL_SwapFloatBE(sample2);
6828  dst[3] = SDL_SwapFloatBE(sample3);
6829  dst += 4;
6830  sample0 = (float) ((((double) SDL_SwapFloatBE(src[0])) + ((double) last_sample0)) * 0.5);
6831  sample1 = (float) ((((double) SDL_SwapFloatBE(src[1])) + ((double) last_sample1)) * 0.5);
6832  sample2 = (float) ((((double) SDL_SwapFloatBE(src[2])) + ((double) last_sample2)) * 0.5);
6833  sample3 = (float) ((((double) SDL_SwapFloatBE(src[3])) + ((double) last_sample3)) * 0.5);
6834  last_sample0 = sample0;
6835  last_sample1 = sample1;
6836  last_sample2 = sample2;
6837  last_sample3 = sample3;
6838  eps -= srcsize;
6839  }
6840  }
6841  cvt->len_cvt = dstsize;
6842  if (cvt->filters[++cvt->filter_index]) {
6843  cvt->filters[cvt->filter_index] (cvt, format);
6844  }
6845 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_SwapFloatBE
#define SDL_SwapFloatBE(X)
Definition: SDL_endian.h:218
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
SDL_AudioCVT::rate_incr
double rate_incr
Definition: SDL_audio.h:205
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Downsample_F32MSB_4c_x2 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 15117 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_SwapFloatBE, and SDLCALL.

15118 {
15119 #if DEBUG_CONVERT
15120  fprintf(stderr, "Downsample (x2) AUDIO_F32MSB, 4 channels.\n");
15121 #endif
15122 
15123  const int dstsize = cvt->len_cvt / 2;
15124  float *dst = (float *) cvt->buf;
15125  const float *src = (float *) cvt->buf;
15126  const float *target = (const float *) (cvt->buf + dstsize);
15127  double last_sample0 = (double) SDL_SwapFloatBE(src[0]);
15128  double last_sample1 = (double) SDL_SwapFloatBE(src[1]);
15129  double last_sample2 = (double) SDL_SwapFloatBE(src[2]);
15130  double last_sample3 = (double) SDL_SwapFloatBE(src[3]);
15131  while (dst < target) {
15132  const double sample0 = (double) SDL_SwapFloatBE(src[0]);
15133  const double sample1 = (double) SDL_SwapFloatBE(src[1]);
15134  const double sample2 = (double) SDL_SwapFloatBE(src[2]);
15135  const double sample3 = (double) SDL_SwapFloatBE(src[3]);
15136  src += 8;
15137  dst[0] = (float) ((sample0 + last_sample0) * 0.5);
15138  dst[1] = (float) ((sample1 + last_sample1) * 0.5);
15139  dst[2] = (float) ((sample2 + last_sample2) * 0.5);
15140  dst[3] = (float) ((sample3 + last_sample3) * 0.5);
15141  last_sample0 = sample0;
15142  last_sample1 = sample1;
15143  last_sample2 = sample2;
15144  last_sample3 = sample3;
15145  dst += 4;
15146  }
15147 
15148  cvt->len_cvt = dstsize;
15149  if (cvt->filters[++cvt->filter_index]) {
15150  cvt->filters[cvt->filter_index] (cvt, format);
15151  }
15152 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_SwapFloatBE
#define SDL_SwapFloatBE(X)
Definition: SDL_endian.h:218
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Downsample_F32MSB_4c_x4 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 15205 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_SwapFloatBE, and SDLCALL.

15206 {
15207 #if DEBUG_CONVERT
15208  fprintf(stderr, "Downsample (x4) AUDIO_F32MSB, 4 channels.\n");
15209 #endif
15210 
15211  const int dstsize = cvt->len_cvt / 4;
15212  float *dst = (float *) cvt->buf;
15213  const float *src = (float *) cvt->buf;
15214  const float *target = (const float *) (cvt->buf + dstsize);
15215  double last_sample0 = (double) SDL_SwapFloatBE(src[0]);
15216  double last_sample1 = (double) SDL_SwapFloatBE(src[1]);
15217  double last_sample2 = (double) SDL_SwapFloatBE(src[2]);
15218  double last_sample3 = (double) SDL_SwapFloatBE(src[3]);
15219  while (dst < target) {
15220  const double sample0 = (double) SDL_SwapFloatBE(src[0]);
15221  const double sample1 = (double) SDL_SwapFloatBE(src[1]);
15222  const double sample2 = (double) SDL_SwapFloatBE(src[2]);
15223  const double sample3 = (double) SDL_SwapFloatBE(src[3]);
15224  src += 16;
15225  dst[0] = (float) ((sample0 + last_sample0) * 0.5);
15226  dst[1] = (float) ((sample1 + last_sample1) * 0.5);
15227  dst[2] = (float) ((sample2 + last_sample2) * 0.5);
15228  dst[3] = (float) ((sample3 + last_sample3) * 0.5);
15229  last_sample0 = sample0;
15230  last_sample1 = sample1;
15231  last_sample2 = sample2;
15232  last_sample3 = sample3;
15233  dst += 4;
15234  }
15235 
15236  cvt->len_cvt = dstsize;
15237  if (cvt->filters[++cvt->filter_index]) {
15238  cvt->filters[cvt->filter_index] (cvt, format);
15239  }
15240 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_SwapFloatBE
#define SDL_SwapFloatBE(X)
Definition: SDL_endian.h:218
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Downsample_F32MSB_6c ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 6905 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_AudioCVT::rate_incr, SDL_SwapFloatBE, and SDLCALL.

6906 {
6907 #if DEBUG_CONVERT
6908  fprintf(stderr, "Downsample arbitrary (x%f) AUDIO_F32MSB, 6 channels.\n", cvt->rate_incr);
6909 #endif
6910 
6911  const int srcsize = cvt->len_cvt - 384;
6912  const int dstsize = (int) (((double)(cvt->len_cvt/24)) * cvt->rate_incr) * 24;
6913  register int eps = 0;
6914  float *dst = (float *) cvt->buf;
6915  const float *src = (float *) cvt->buf;
6916  const float *target = (const float *) (cvt->buf + dstsize);
6917  float sample0 = SDL_SwapFloatBE(src[0]);
6918  float sample1 = SDL_SwapFloatBE(src[1]);
6919  float sample2 = SDL_SwapFloatBE(src[2]);
6920  float sample3 = SDL_SwapFloatBE(src[3]);
6921  float sample4 = SDL_SwapFloatBE(src[4]);
6922  float sample5 = SDL_SwapFloatBE(src[5]);
6923  float last_sample0 = sample0;
6924  float last_sample1 = sample1;
6925  float last_sample2 = sample2;
6926  float last_sample3 = sample3;
6927  float last_sample4 = sample4;
6928  float last_sample5 = sample5;
6929  while (dst < target) {
6930  src += 6;
6931  eps += dstsize;
6932  if ((eps << 1) >= srcsize) {
6933  dst[0] = SDL_SwapFloatBE(sample0);
6934  dst[1] = SDL_SwapFloatBE(sample1);
6935  dst[2] = SDL_SwapFloatBE(sample2);
6936  dst[3] = SDL_SwapFloatBE(sample3);
6937  dst[4] = SDL_SwapFloatBE(sample4);
6938  dst[5] = SDL_SwapFloatBE(sample5);
6939  dst += 6;
6940  sample0 = (float) ((((double) SDL_SwapFloatBE(src[0])) + ((double) last_sample0)) * 0.5);
6941  sample1 = (float) ((((double) SDL_SwapFloatBE(src[1])) + ((double) last_sample1)) * 0.5);
6942  sample2 = (float) ((((double) SDL_SwapFloatBE(src[2])) + ((double) last_sample2)) * 0.5);
6943  sample3 = (float) ((((double) SDL_SwapFloatBE(src[3])) + ((double) last_sample3)) * 0.5);
6944  sample4 = (float) ((((double) SDL_SwapFloatBE(src[4])) + ((double) last_sample4)) * 0.5);
6945  sample5 = (float) ((((double) SDL_SwapFloatBE(src[5])) + ((double) last_sample5)) * 0.5);
6946  last_sample0 = sample0;
6947  last_sample1 = sample1;
6948  last_sample2 = sample2;
6949  last_sample3 = sample3;
6950  last_sample4 = sample4;
6951  last_sample5 = sample5;
6952  eps -= srcsize;
6953  }
6954  }
6955  cvt->len_cvt = dstsize;
6956  if (cvt->filters[++cvt->filter_index]) {
6957  cvt->filters[cvt->filter_index] (cvt, format);
6958  }
6959 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_SwapFloatBE
#define SDL_SwapFloatBE(X)
Definition: SDL_endian.h:218
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
SDL_AudioCVT::rate_incr
double rate_incr
Definition: SDL_audio.h:205
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Downsample_F32MSB_6c_x2 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 15295 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_SwapFloatBE, and SDLCALL.

15296 {
15297 #if DEBUG_CONVERT
15298  fprintf(stderr, "Downsample (x2) AUDIO_F32MSB, 6 channels.\n");
15299 #endif
15300 
15301  const int dstsize = cvt->len_cvt / 2;
15302  float *dst = (float *) cvt->buf;
15303  const float *src = (float *) cvt->buf;
15304  const float *target = (const float *) (cvt->buf + dstsize);
15305  double last_sample0 = (double) SDL_SwapFloatBE(src[0]);
15306  double last_sample1 = (double) SDL_SwapFloatBE(src[1]);
15307  double last_sample2 = (double) SDL_SwapFloatBE(src[2]);
15308  double last_sample3 = (double) SDL_SwapFloatBE(src[3]);
15309  double last_sample4 = (double) SDL_SwapFloatBE(src[4]);
15310  double last_sample5 = (double) SDL_SwapFloatBE(src[5]);
15311  while (dst < target) {
15312  const double sample0 = (double) SDL_SwapFloatBE(src[0]);
15313  const double sample1 = (double) SDL_SwapFloatBE(src[1]);
15314  const double sample2 = (double) SDL_SwapFloatBE(src[2]);
15315  const double sample3 = (double) SDL_SwapFloatBE(src[3]);
15316  const double sample4 = (double) SDL_SwapFloatBE(src[4]);
15317  const double sample5 = (double) SDL_SwapFloatBE(src[5]);
15318  src += 12;
15319  dst[0] = (float) ((sample0 + last_sample0) * 0.5);
15320  dst[1] = (float) ((sample1 + last_sample1) * 0.5);
15321  dst[2] = (float) ((sample2 + last_sample2) * 0.5);
15322  dst[3] = (float) ((sample3 + last_sample3) * 0.5);
15323  dst[4] = (float) ((sample4 + last_sample4) * 0.5);
15324  dst[5] = (float) ((sample5 + last_sample5) * 0.5);
15325  last_sample0 = sample0;
15326  last_sample1 = sample1;
15327  last_sample2 = sample2;
15328  last_sample3 = sample3;
15329  last_sample4 = sample4;
15330  last_sample5 = sample5;
15331  dst += 6;
15332  }
15333 
15334  cvt->len_cvt = dstsize;
15335  if (cvt->filters[++cvt->filter_index]) {
15336  cvt->filters[cvt->filter_index] (cvt, format);
15337  }
15338 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_SwapFloatBE
#define SDL_SwapFloatBE(X)
Definition: SDL_endian.h:218
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Downsample_F32MSB_6c_x4 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 15405 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_SwapFloatBE, and SDLCALL.

15406 {
15407 #if DEBUG_CONVERT
15408  fprintf(stderr, "Downsample (x4) AUDIO_F32MSB, 6 channels.\n");
15409 #endif
15410 
15411  const int dstsize = cvt->len_cvt / 4;
15412  float *dst = (float *) cvt->buf;
15413  const float *src = (float *) cvt->buf;
15414  const float *target = (const float *) (cvt->buf + dstsize);
15415  double last_sample0 = (double) SDL_SwapFloatBE(src[0]);
15416  double last_sample1 = (double) SDL_SwapFloatBE(src[1]);
15417  double last_sample2 = (double) SDL_SwapFloatBE(src[2]);
15418  double last_sample3 = (double) SDL_SwapFloatBE(src[3]);
15419  double last_sample4 = (double) SDL_SwapFloatBE(src[4]);
15420  double last_sample5 = (double) SDL_SwapFloatBE(src[5]);
15421  while (dst < target) {
15422  const double sample0 = (double) SDL_SwapFloatBE(src[0]);
15423  const double sample1 = (double) SDL_SwapFloatBE(src[1]);
15424  const double sample2 = (double) SDL_SwapFloatBE(src[2]);
15425  const double sample3 = (double) SDL_SwapFloatBE(src[3]);
15426  const double sample4 = (double) SDL_SwapFloatBE(src[4]);
15427  const double sample5 = (double) SDL_SwapFloatBE(src[5]);
15428  src += 24;
15429  dst[0] = (float) ((sample0 + last_sample0) * 0.5);
15430  dst[1] = (float) ((sample1 + last_sample1) * 0.5);
15431  dst[2] = (float) ((sample2 + last_sample2) * 0.5);
15432  dst[3] = (float) ((sample3 + last_sample3) * 0.5);
15433  dst[4] = (float) ((sample4 + last_sample4) * 0.5);
15434  dst[5] = (float) ((sample5 + last_sample5) * 0.5);
15435  last_sample0 = sample0;
15436  last_sample1 = sample1;
15437  last_sample2 = sample2;
15438  last_sample3 = sample3;
15439  last_sample4 = sample4;
15440  last_sample5 = sample5;
15441  dst += 6;
15442  }
15443 
15444  cvt->len_cvt = dstsize;
15445  if (cvt->filters[++cvt->filter_index]) {
15446  cvt->filters[cvt->filter_index] (cvt, format);
15447  }
15448 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_SwapFloatBE
#define SDL_SwapFloatBE(X)
Definition: SDL_endian.h:218
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Downsample_F32MSB_8c ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 7029 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_AudioCVT::rate_incr, SDL_SwapFloatBE, and SDLCALL.

7030 {
7031 #if DEBUG_CONVERT
7032  fprintf(stderr, "Downsample arbitrary (x%f) AUDIO_F32MSB, 8 channels.\n", cvt->rate_incr);
7033 #endif
7034 
7035  const int srcsize = cvt->len_cvt - 512;
7036  const int dstsize = (int) (((double)(cvt->len_cvt/32)) * cvt->rate_incr) * 32;
7037  register int eps = 0;
7038  float *dst = (float *) cvt->buf;
7039  const float *src = (float *) cvt->buf;
7040  const float *target = (const float *) (cvt->buf + dstsize);
7041  float sample0 = SDL_SwapFloatBE(src[0]);
7042  float sample1 = SDL_SwapFloatBE(src[1]);
7043  float sample2 = SDL_SwapFloatBE(src[2]);
7044  float sample3 = SDL_SwapFloatBE(src[3]);
7045  float sample4 = SDL_SwapFloatBE(src[4]);
7046  float sample5 = SDL_SwapFloatBE(src[5]);
7047  float sample6 = SDL_SwapFloatBE(src[6]);
7048  float sample7 = SDL_SwapFloatBE(src[7]);
7049  float last_sample0 = sample0;
7050  float last_sample1 = sample1;
7051  float last_sample2 = sample2;
7052  float last_sample3 = sample3;
7053  float last_sample4 = sample4;
7054  float last_sample5 = sample5;
7055  float last_sample6 = sample6;
7056  float last_sample7 = sample7;
7057  while (dst < target) {
7058  src += 8;
7059  eps += dstsize;
7060  if ((eps << 1) >= srcsize) {
7061  dst[0] = SDL_SwapFloatBE(sample0);
7062  dst[1] = SDL_SwapFloatBE(sample1);
7063  dst[2] = SDL_SwapFloatBE(sample2);
7064  dst[3] = SDL_SwapFloatBE(sample3);
7065  dst[4] = SDL_SwapFloatBE(sample4);
7066  dst[5] = SDL_SwapFloatBE(sample5);
7067  dst[6] = SDL_SwapFloatBE(sample6);
7068  dst[7] = SDL_SwapFloatBE(sample7);
7069  dst += 8;
7070  sample0 = (float) ((((double) SDL_SwapFloatBE(src[0])) + ((double) last_sample0)) * 0.5);
7071  sample1 = (float) ((((double) SDL_SwapFloatBE(src[1])) + ((double) last_sample1)) * 0.5);
7072  sample2 = (float) ((((double) SDL_SwapFloatBE(src[2])) + ((double) last_sample2)) * 0.5);
7073  sample3 = (float) ((((double) SDL_SwapFloatBE(src[3])) + ((double) last_sample3)) * 0.5);
7074  sample4 = (float) ((((double) SDL_SwapFloatBE(src[4])) + ((double) last_sample4)) * 0.5);
7075  sample5 = (float) ((((double) SDL_SwapFloatBE(src[5])) + ((double) last_sample5)) * 0.5);
7076  sample6 = (float) ((((double) SDL_SwapFloatBE(src[6])) + ((double) last_sample6)) * 0.5);
7077  sample7 = (float) ((((double) SDL_SwapFloatBE(src[7])) + ((double) last_sample7)) * 0.5);
7078  last_sample0 = sample0;
7079  last_sample1 = sample1;
7080  last_sample2 = sample2;
7081  last_sample3 = sample3;
7082  last_sample4 = sample4;
7083  last_sample5 = sample5;
7084  last_sample6 = sample6;
7085  last_sample7 = sample7;
7086  eps -= srcsize;
7087  }
7088  }
7089  cvt->len_cvt = dstsize;
7090  if (cvt->filters[++cvt->filter_index]) {
7091  cvt->filters[cvt->filter_index] (cvt, format);
7092  }
7093 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_SwapFloatBE
#define SDL_SwapFloatBE(X)
Definition: SDL_endian.h:218
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
SDL_AudioCVT::rate_incr
double rate_incr
Definition: SDL_audio.h:205
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Downsample_F32MSB_8c_x2 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 15513 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_SwapFloatBE, and SDLCALL.

15514 {
15515 #if DEBUG_CONVERT
15516  fprintf(stderr, "Downsample (x2) AUDIO_F32MSB, 8 channels.\n");
15517 #endif
15518 
15519  const int dstsize = cvt->len_cvt / 2;
15520  float *dst = (float *) cvt->buf;
15521  const float *src = (float *) cvt->buf;
15522  const float *target = (const float *) (cvt->buf + dstsize);
15523  double last_sample0 = (double) SDL_SwapFloatBE(src[0]);
15524  double last_sample1 = (double) SDL_SwapFloatBE(src[1]);
15525  double last_sample2 = (double) SDL_SwapFloatBE(src[2]);
15526  double last_sample3 = (double) SDL_SwapFloatBE(src[3]);
15527  double last_sample4 = (double) SDL_SwapFloatBE(src[4]);
15528  double last_sample5 = (double) SDL_SwapFloatBE(src[5]);
15529  double last_sample6 = (double) SDL_SwapFloatBE(src[6]);
15530  double last_sample7 = (double) SDL_SwapFloatBE(src[7]);
15531  while (dst < target) {
15532  const double sample0 = (double) SDL_SwapFloatBE(src[0]);
15533  const double sample1 = (double) SDL_SwapFloatBE(src[1]);
15534  const double sample2 = (double) SDL_SwapFloatBE(src[2]);
15535  const double sample3 = (double) SDL_SwapFloatBE(src[3]);
15536  const double sample4 = (double) SDL_SwapFloatBE(src[4]);
15537  const double sample5 = (double) SDL_SwapFloatBE(src[5]);
15538  const double sample6 = (double) SDL_SwapFloatBE(src[6]);
15539  const double sample7 = (double) SDL_SwapFloatBE(src[7]);
15540  src += 16;
15541  dst[0] = (float) ((sample0 + last_sample0) * 0.5);
15542  dst[1] = (float) ((sample1 + last_sample1) * 0.5);
15543  dst[2] = (float) ((sample2 + last_sample2) * 0.5);
15544  dst[3] = (float) ((sample3 + last_sample3) * 0.5);
15545  dst[4] = (float) ((sample4 + last_sample4) * 0.5);
15546  dst[5] = (float) ((sample5 + last_sample5) * 0.5);
15547  dst[6] = (float) ((sample6 + last_sample6) * 0.5);
15548  dst[7] = (float) ((sample7 + last_sample7) * 0.5);
15549  last_sample0 = sample0;
15550  last_sample1 = sample1;
15551  last_sample2 = sample2;
15552  last_sample3 = sample3;
15553  last_sample4 = sample4;
15554  last_sample5 = sample5;
15555  last_sample6 = sample6;
15556  last_sample7 = sample7;
15557  dst += 8;
15558  }
15559 
15560  cvt->len_cvt = dstsize;
15561  if (cvt->filters[++cvt->filter_index]) {
15562  cvt->filters[cvt->filter_index] (cvt, format);
15563  }
15564 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_SwapFloatBE
#define SDL_SwapFloatBE(X)
Definition: SDL_endian.h:218
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Downsample_F32MSB_8c_x4 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 15645 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, and SDL_SwapFloatBE.

15646 {
15647 #if DEBUG_CONVERT
15648  fprintf(stderr, "Downsample (x4) AUDIO_F32MSB, 8 channels.\n");
15649 #endif
15650 
15651  const int dstsize = cvt->len_cvt / 4;
15652  float *dst = (float *) cvt->buf;
15653  const float *src = (float *) cvt->buf;
15654  const float *target = (const float *) (cvt->buf + dstsize);
15655  double last_sample0 = (double) SDL_SwapFloatBE(src[0]);
15656  double last_sample1 = (double) SDL_SwapFloatBE(src[1]);
15657  double last_sample2 = (double) SDL_SwapFloatBE(src[2]);
15658  double last_sample3 = (double) SDL_SwapFloatBE(src[3]);
15659  double last_sample4 = (double) SDL_SwapFloatBE(src[4]);
15660  double last_sample5 = (double) SDL_SwapFloatBE(src[5]);
15661  double last_sample6 = (double) SDL_SwapFloatBE(src[6]);
15662  double last_sample7 = (double) SDL_SwapFloatBE(src[7]);
15663  while (dst < target) {
15664  const double sample0 = (double) SDL_SwapFloatBE(src[0]);
15665  const double sample1 = (double) SDL_SwapFloatBE(src[1]);
15666  const double sample2 = (double) SDL_SwapFloatBE(src[2]);
15667  const double sample3 = (double) SDL_SwapFloatBE(src[3]);
15668  const double sample4 = (double) SDL_SwapFloatBE(src[4]);
15669  const double sample5 = (double) SDL_SwapFloatBE(src[5]);
15670  const double sample6 = (double) SDL_SwapFloatBE(src[6]);
15671  const double sample7 = (double) SDL_SwapFloatBE(src[7]);
15672  src += 32;
15673  dst[0] = (float) ((sample0 + last_sample0) * 0.5);
15674  dst[1] = (float) ((sample1 + last_sample1) * 0.5);
15675  dst[2] = (float) ((sample2 + last_sample2) * 0.5);
15676  dst[3] = (float) ((sample3 + last_sample3) * 0.5);
15677  dst[4] = (float) ((sample4 + last_sample4) * 0.5);
15678  dst[5] = (float) ((sample5 + last_sample5) * 0.5);
15679  dst[6] = (float) ((sample6 + last_sample6) * 0.5);
15680  dst[7] = (float) ((sample7 + last_sample7) * 0.5);
15681  last_sample0 = sample0;
15682  last_sample1 = sample1;
15683  last_sample2 = sample2;
15684  last_sample3 = sample3;
15685  last_sample4 = sample4;
15686  last_sample5 = sample5;
15687  last_sample6 = sample6;
15688  last_sample7 = sample7;
15689  dst += 8;
15690  }
15691 
15692  cvt->len_cvt = dstsize;
15693  if (cvt->filters[++cvt->filter_index]) {
15694  cvt->filters[cvt->filter_index] (cvt, format);
15695  }
15696 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_SwapFloatBE
#define SDL_SwapFloatBE(X)
Definition: SDL_endian.h:218
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Downsample_S16LSB_1c ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 3768 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_AudioCVT::rate_incr, SDL_SwapLE16, and SDLCALL.

3769 {
3770 #if DEBUG_CONVERT
3771  fprintf(stderr, "Downsample arbitrary (x%f) AUDIO_S16LSB, 1 channels.\n", cvt->rate_incr);
3772 #endif
3773 
3774  const int srcsize = cvt->len_cvt - 32;
3775  const int dstsize = (int) (((double)(cvt->len_cvt/2)) * cvt->rate_incr) * 2;
3776  register int eps = 0;
3777  Sint16 *dst = (Sint16 *) cvt->buf;
3778  const Sint16 *src = (Sint16 *) cvt->buf;
3779  const Sint16 *target = (const Sint16 *) (cvt->buf + dstsize);
3780  Sint16 sample0 = ((Sint16) SDL_SwapLE16(src[0]));
3781  Sint16 last_sample0 = sample0;
3782  while (dst < target) {
3783  src++;
3784  eps += dstsize;
3785  if ((eps << 1) >= srcsize) {
3786  dst[0] = ((Sint16) SDL_SwapLE16(sample0));
3787  dst++;
3788  sample0 = (Sint16) ((((Sint32) ((Sint16) SDL_SwapLE16(src[0]))) + ((Sint32) last_sample0)) >> 1);
3789  last_sample0 = sample0;
3790  eps -= srcsize;
3791  }
3792  }
3793  cvt->len_cvt = dstsize;
3794  if (cvt->filters[++cvt->filter_index]) {
3795  cvt->filters[cvt->filter_index] (cvt, format);
3796  }
3797 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
SDL_AudioCVT::rate_incr
double rate_incr
Definition: SDL_audio.h:205
SDL_SwapLE16
#define SDL_SwapLE16(X)
Definition: SDL_endian.h:211
src
GLenum src
Definition: SDL_opengl_glext.h:1737
Sint16
int16_t Sint16
A signed 16-bit integer type.
Definition: SDL_stdinc.h:143
static void SDL_Downsample_S16LSB_1c_x2 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 9706 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_SwapLE16, and SDLCALL.

9707 {
9708 #if DEBUG_CONVERT
9709  fprintf(stderr, "Downsample (x2) AUDIO_S16LSB, 1 channels.\n");
9710 #endif
9711 
9712  const int dstsize = cvt->len_cvt / 2;
9713  Sint16 *dst = (Sint16 *) cvt->buf;
9714  const Sint16 *src = (Sint16 *) cvt->buf;
9715  const Sint16 *target = (const Sint16 *) (cvt->buf + dstsize);
9716  Sint32 last_sample0 = (Sint32) ((Sint16) SDL_SwapLE16(src[0]));
9717  while (dst < target) {
9718  const Sint32 sample0 = (Sint32) ((Sint16) SDL_SwapLE16(src[0]));
9719  src += 2;
9720  dst[0] = (Sint16) ((sample0 + last_sample0) >> 1);
9721  last_sample0 = sample0;
9722  dst++;
9723  }
9724 
9725  cvt->len_cvt = dstsize;
9726  if (cvt->filters[++cvt->filter_index]) {
9727  cvt->filters[cvt->filter_index] (cvt, format);
9728  }
9729 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
SDL_SwapLE16
#define SDL_SwapLE16(X)
Definition: SDL_endian.h:211
src
GLenum src
Definition: SDL_opengl_glext.h:1737
Sint16
int16_t Sint16
A signed 16-bit integer type.
Definition: SDL_stdinc.h:143
static void SDL_Downsample_S16LSB_1c_x4 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 9761 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_SwapLE16, and SDLCALL.

9762 {
9763 #if DEBUG_CONVERT
9764  fprintf(stderr, "Downsample (x4) AUDIO_S16LSB, 1 channels.\n");
9765 #endif
9766 
9767  const int dstsize = cvt->len_cvt / 4;
9768  Sint16 *dst = (Sint16 *) cvt->buf;
9769  const Sint16 *src = (Sint16 *) cvt->buf;
9770  const Sint16 *target = (const Sint16 *) (cvt->buf + dstsize);
9771  Sint32 last_sample0 = (Sint32) ((Sint16) SDL_SwapLE16(src[0]));
9772  while (dst < target) {
9773  const Sint32 sample0 = (Sint32) ((Sint16) SDL_SwapLE16(src[0]));
9774  src += 4;
9775  dst[0] = (Sint16) ((sample0 + last_sample0) >> 1);
9776  last_sample0 = sample0;
9777  dst++;
9778  }
9779 
9780  cvt->len_cvt = dstsize;
9781  if (cvt->filters[++cvt->filter_index]) {
9782  cvt->filters[cvt->filter_index] (cvt, format);
9783  }
9784 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
SDL_SwapLE16
#define SDL_SwapLE16(X)
Definition: SDL_endian.h:211
src
GLenum src
Definition: SDL_opengl_glext.h:1737
Sint16
int16_t Sint16
A signed 16-bit integer type.
Definition: SDL_stdinc.h:143
static void SDL_Downsample_S16LSB_2c ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 3837 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_AudioCVT::rate_incr, SDL_SwapLE16, and SDLCALL.

3838 {
3839 #if DEBUG_CONVERT
3840  fprintf(stderr, "Downsample arbitrary (x%f) AUDIO_S16LSB, 2 channels.\n", cvt->rate_incr);
3841 #endif
3842 
3843  const int srcsize = cvt->len_cvt - 64;
3844  const int dstsize = (int) (((double)(cvt->len_cvt/4)) * cvt->rate_incr) * 4;
3845  register int eps = 0;
3846  Sint16 *dst = (Sint16 *) cvt->buf;
3847  const Sint16 *src = (Sint16 *) cvt->buf;
3848  const Sint16 *target = (const Sint16 *) (cvt->buf + dstsize);
3849  Sint16 sample0 = ((Sint16) SDL_SwapLE16(src[0]));
3850  Sint16 sample1 = ((Sint16) SDL_SwapLE16(src[1]));
3851  Sint16 last_sample0 = sample0;
3852  Sint16 last_sample1 = sample1;
3853  while (dst < target) {
3854  src += 2;
3855  eps += dstsize;
3856  if ((eps << 1) >= srcsize) {
3857  dst[0] = ((Sint16) SDL_SwapLE16(sample0));
3858  dst[1] = ((Sint16) SDL_SwapLE16(sample1));
3859  dst += 2;
3860  sample0 = (Sint16) ((((Sint32) ((Sint16) SDL_SwapLE16(src[0]))) + ((Sint32) last_sample0)) >> 1);
3861  sample1 = (Sint16) ((((Sint32) ((Sint16) SDL_SwapLE16(src[1]))) + ((Sint32) last_sample1)) >> 1);
3862  last_sample0 = sample0;
3863  last_sample1 = sample1;
3864  eps -= srcsize;
3865  }
3866  }
3867  cvt->len_cvt = dstsize;
3868  if (cvt->filters[++cvt->filter_index]) {
3869  cvt->filters[cvt->filter_index] (cvt, format);
3870  }
3871 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
SDL_AudioCVT::rate_incr
double rate_incr
Definition: SDL_audio.h:205
SDL_SwapLE16
#define SDL_SwapLE16(X)
Definition: SDL_endian.h:211
src
GLenum src
Definition: SDL_opengl_glext.h:1737
Sint16
int16_t Sint16
A signed 16-bit integer type.
Definition: SDL_stdinc.h:143
static void SDL_Downsample_S16LSB_2c_x2 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 9819 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_SwapLE16, and SDLCALL.

9820 {
9821 #if DEBUG_CONVERT
9822  fprintf(stderr, "Downsample (x2) AUDIO_S16LSB, 2 channels.\n");
9823 #endif
9824 
9825  const int dstsize = cvt->len_cvt / 2;
9826  Sint16 *dst = (Sint16 *) cvt->buf;
9827  const Sint16 *src = (Sint16 *) cvt->buf;
9828  const Sint16 *target = (const Sint16 *) (cvt->buf + dstsize);
9829  Sint32 last_sample0 = (Sint32) ((Sint16) SDL_SwapLE16(src[0]));
9830  Sint32 last_sample1 = (Sint32) ((Sint16) SDL_SwapLE16(src[1]));
9831  while (dst < target) {
9832  const Sint32 sample0 = (Sint32) ((Sint16) SDL_SwapLE16(src[0]));
9833  const Sint32 sample1 = (Sint32) ((Sint16) SDL_SwapLE16(src[1]));
9834  src += 4;
9835  dst[0] = (Sint16) ((sample0 + last_sample0) >> 1);
9836  dst[1] = (Sint16) ((sample1 + last_sample1) >> 1);
9837  last_sample0 = sample0;
9838  last_sample1 = sample1;
9839  dst += 2;
9840  }
9841 
9842  cvt->len_cvt = dstsize;
9843  if (cvt->filters[++cvt->filter_index]) {
9844  cvt->filters[cvt->filter_index] (cvt, format);
9845  }
9846 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
SDL_SwapLE16
#define SDL_SwapLE16(X)
Definition: SDL_endian.h:211
src
GLenum src
Definition: SDL_opengl_glext.h:1737
Sint16
int16_t Sint16
A signed 16-bit integer type.
Definition: SDL_stdinc.h:143
static void SDL_Downsample_S16LSB_2c_x4 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 9885 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_SwapLE16, and SDLCALL.

9886 {
9887 #if DEBUG_CONVERT
9888  fprintf(stderr, "Downsample (x4) AUDIO_S16LSB, 2 channels.\n");
9889 #endif
9890 
9891  const int dstsize = cvt->len_cvt / 4;
9892  Sint16 *dst = (Sint16 *) cvt->buf;
9893  const Sint16 *src = (Sint16 *) cvt->buf;
9894  const Sint16 *target = (const Sint16 *) (cvt->buf + dstsize);
9895  Sint32 last_sample0 = (Sint32) ((Sint16) SDL_SwapLE16(src[0]));
9896  Sint32 last_sample1 = (Sint32) ((Sint16) SDL_SwapLE16(src[1]));
9897  while (dst < target) {
9898  const Sint32 sample0 = (Sint32) ((Sint16) SDL_SwapLE16(src[0]));
9899  const Sint32 sample1 = (Sint32) ((Sint16) SDL_SwapLE16(src[1]));
9900  src += 8;
9901  dst[0] = (Sint16) ((sample0 + last_sample0) >> 1);
9902  dst[1] = (Sint16) ((sample1 + last_sample1) >> 1);
9903  last_sample0 = sample0;
9904  last_sample1 = sample1;
9905  dst += 2;
9906  }
9907 
9908  cvt->len_cvt = dstsize;
9909  if (cvt->filters[++cvt->filter_index]) {
9910  cvt->filters[cvt->filter_index] (cvt, format);
9911  }
9912 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
SDL_SwapLE16
#define SDL_SwapLE16(X)
Definition: SDL_endian.h:211
src
GLenum src
Definition: SDL_opengl_glext.h:1737
Sint16
int16_t Sint16
A signed 16-bit integer type.
Definition: SDL_stdinc.h:143
static void SDL_Downsample_S16LSB_4c ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 3921 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_AudioCVT::rate_incr, SDL_SwapLE16, and SDLCALL.

3922 {
3923 #if DEBUG_CONVERT
3924  fprintf(stderr, "Downsample arbitrary (x%f) AUDIO_S16LSB, 4 channels.\n", cvt->rate_incr);
3925 #endif
3926 
3927  const int srcsize = cvt->len_cvt - 128;
3928  const int dstsize = (int) (((double)(cvt->len_cvt/8)) * cvt->rate_incr) * 8;
3929  register int eps = 0;
3930  Sint16 *dst = (Sint16 *) cvt->buf;
3931  const Sint16 *src = (Sint16 *) cvt->buf;
3932  const Sint16 *target = (const Sint16 *) (cvt->buf + dstsize);
3933  Sint16 sample0 = ((Sint16) SDL_SwapLE16(src[0]));
3934  Sint16 sample1 = ((Sint16) SDL_SwapLE16(src[1]));
3935  Sint16 sample2 = ((Sint16) SDL_SwapLE16(src[2]));
3936  Sint16 sample3 = ((Sint16) SDL_SwapLE16(src[3]));
3937  Sint16 last_sample0 = sample0;
3938  Sint16 last_sample1 = sample1;
3939  Sint16 last_sample2 = sample2;
3940  Sint16 last_sample3 = sample3;
3941  while (dst < target) {
3942  src += 4;
3943  eps += dstsize;
3944  if ((eps << 1) >= srcsize) {
3945  dst[0] = ((Sint16) SDL_SwapLE16(sample0));
3946  dst[1] = ((Sint16) SDL_SwapLE16(sample1));
3947  dst[2] = ((Sint16) SDL_SwapLE16(sample2));
3948  dst[3] = ((Sint16) SDL_SwapLE16(sample3));
3949  dst += 4;
3950  sample0 = (Sint16) ((((Sint32) ((Sint16) SDL_SwapLE16(src[0]))) + ((Sint32) last_sample0)) >> 1);
3951  sample1 = (Sint16) ((((Sint32) ((Sint16) SDL_SwapLE16(src[1]))) + ((Sint32) last_sample1)) >> 1);
3952  sample2 = (Sint16) ((((Sint32) ((Sint16) SDL_SwapLE16(src[2]))) + ((Sint32) last_sample2)) >> 1);
3953  sample3 = (Sint16) ((((Sint32) ((Sint16) SDL_SwapLE16(src[3]))) + ((Sint32) last_sample3)) >> 1);
3954  last_sample0 = sample0;
3955  last_sample1 = sample1;
3956  last_sample2 = sample2;
3957  last_sample3 = sample3;
3958  eps -= srcsize;
3959  }
3960  }
3961  cvt->len_cvt = dstsize;
3962  if (cvt->filters[++cvt->filter_index]) {
3963  cvt->filters[cvt->filter_index] (cvt, format);
3964  }
3965 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
SDL_AudioCVT::rate_incr
double rate_incr
Definition: SDL_audio.h:205
SDL_SwapLE16
#define SDL_SwapLE16(X)
Definition: SDL_endian.h:211
src
GLenum src
Definition: SDL_opengl_glext.h:1737
Sint16
int16_t Sint16
A signed 16-bit integer type.
Definition: SDL_stdinc.h:143
static void SDL_Downsample_S16LSB_4c_x2 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 9957 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_SwapLE16, and SDLCALL.

9958 {
9959 #if DEBUG_CONVERT
9960  fprintf(stderr, "Downsample (x2) AUDIO_S16LSB, 4 channels.\n");
9961 #endif
9962 
9963  const int dstsize = cvt->len_cvt / 2;
9964  Sint16 *dst = (Sint16 *) cvt->buf;
9965  const Sint16 *src = (Sint16 *) cvt->buf;
9966  const Sint16 *target = (const Sint16 *) (cvt->buf + dstsize);
9967  Sint32 last_sample0 = (Sint32) ((Sint16) SDL_SwapLE16(src[0]));
9968  Sint32 last_sample1 = (Sint32) ((Sint16) SDL_SwapLE16(src[1]));
9969  Sint32 last_sample2 = (Sint32) ((Sint16) SDL_SwapLE16(src[2]));
9970  Sint32 last_sample3 = (Sint32) ((Sint16) SDL_SwapLE16(src[3]));
9971  while (dst < target) {
9972  const Sint32 sample0 = (Sint32) ((Sint16) SDL_SwapLE16(src[0]));
9973  const Sint32 sample1 = (Sint32) ((Sint16) SDL_SwapLE16(src[1]));
9974  const Sint32 sample2 = (Sint32) ((Sint16) SDL_SwapLE16(src[2]));
9975  const Sint32 sample3 = (Sint32) ((Sint16) SDL_SwapLE16(src[3]));
9976  src += 8;
9977  dst[0] = (Sint16) ((sample0 + last_sample0) >> 1);
9978  dst[1] = (Sint16) ((sample1 + last_sample1) >> 1);
9979  dst[2] = (Sint16) ((sample2 + last_sample2) >> 1);
9980  dst[3] = (Sint16) ((sample3 + last_sample3) >> 1);
9981  last_sample0 = sample0;
9982  last_sample1 = sample1;
9983  last_sample2 = sample2;
9984  last_sample3 = sample3;
9985  dst += 4;
9986  }
9987 
9988  cvt->len_cvt = dstsize;
9989  if (cvt->filters[++cvt->filter_index]) {
9990  cvt->filters[cvt->filter_index] (cvt, format);
9991  }
9992 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
SDL_SwapLE16
#define SDL_SwapLE16(X)
Definition: SDL_endian.h:211
src
GLenum src
Definition: SDL_opengl_glext.h:1737
Sint16
int16_t Sint16
A signed 16-bit integer type.
Definition: SDL_stdinc.h:143
static void SDL_Downsample_S16LSB_4c_x4 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 10045 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_SwapLE16, and SDLCALL.

10046 {
10047 #if DEBUG_CONVERT
10048  fprintf(stderr, "Downsample (x4) AUDIO_S16LSB, 4 channels.\n");
10049 #endif
10050 
10051  const int dstsize = cvt->len_cvt / 4;
10052  Sint16 *dst = (Sint16 *) cvt->buf;
10053  const Sint16 *src = (Sint16 *) cvt->buf;
10054  const Sint16 *target = (const Sint16 *) (cvt->buf + dstsize);
10055  Sint32 last_sample0 = (Sint32) ((Sint16) SDL_SwapLE16(src[0]));
10056  Sint32 last_sample1 = (Sint32) ((Sint16) SDL_SwapLE16(src[1]));
10057  Sint32 last_sample2 = (Sint32) ((Sint16) SDL_SwapLE16(src[2]));
10058  Sint32 last_sample3 = (Sint32) ((Sint16) SDL_SwapLE16(src[3]));
10059  while (dst < target) {
10060  const Sint32 sample0 = (Sint32) ((Sint16) SDL_SwapLE16(src[0]));
10061  const Sint32 sample1 = (Sint32) ((Sint16) SDL_SwapLE16(src[1]));
10062  const Sint32 sample2 = (Sint32) ((Sint16) SDL_SwapLE16(src[2]));
10063  const Sint32 sample3 = (Sint32) ((Sint16) SDL_SwapLE16(src[3]));
10064  src += 16;
10065  dst[0] = (Sint16) ((sample0 + last_sample0) >> 1);
10066  dst[1] = (Sint16) ((sample1 + last_sample1) >> 1);
10067  dst[2] = (Sint16) ((sample2 + last_sample2) >> 1);
10068  dst[3] = (Sint16) ((sample3 + last_sample3) >> 1);
10069  last_sample0 = sample0;
10070  last_sample1 = sample1;
10071  last_sample2 = sample2;
10072  last_sample3 = sample3;
10073  dst += 4;
10074  }
10075 
10076  cvt->len_cvt = dstsize;
10077  if (cvt->filters[++cvt->filter_index]) {
10078  cvt->filters[cvt->filter_index] (cvt, format);
10079  }
10080 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
SDL_SwapLE16
#define SDL_SwapLE16(X)
Definition: SDL_endian.h:211
src
GLenum src
Definition: SDL_opengl_glext.h:1737
Sint16
int16_t Sint16
A signed 16-bit integer type.
Definition: SDL_stdinc.h:143
static void SDL_Downsample_S16LSB_6c ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 4025 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_AudioCVT::rate_incr, SDL_SwapLE16, and SDLCALL.

4026 {
4027 #if DEBUG_CONVERT
4028  fprintf(stderr, "Downsample arbitrary (x%f) AUDIO_S16LSB, 6 channels.\n", cvt->rate_incr);
4029 #endif
4030 
4031  const int srcsize = cvt->len_cvt - 192;
4032  const int dstsize = (int) (((double)(cvt->len_cvt/12)) * cvt->rate_incr) * 12;
4033  register int eps = 0;
4034  Sint16 *dst = (Sint16 *) cvt->buf;
4035  const Sint16 *src = (Sint16 *) cvt->buf;
4036  const Sint16 *target = (const Sint16 *) (cvt->buf + dstsize);
4037  Sint16 sample0 = ((Sint16) SDL_SwapLE16(src[0]));
4038  Sint16 sample1 = ((Sint16) SDL_SwapLE16(src[1]));
4039  Sint16 sample2 = ((Sint16) SDL_SwapLE16(src[2]));
4040  Sint16 sample3 = ((Sint16) SDL_SwapLE16(src[3]));
4041  Sint16 sample4 = ((Sint16) SDL_SwapLE16(src[4]));
4042  Sint16 sample5 = ((Sint16) SDL_SwapLE16(src[5]));
4043  Sint16 last_sample0 = sample0;
4044  Sint16 last_sample1 = sample1;
4045  Sint16 last_sample2 = sample2;
4046  Sint16 last_sample3 = sample3;
4047  Sint16 last_sample4 = sample4;
4048  Sint16 last_sample5 = sample5;
4049  while (dst < target) {
4050  src += 6;
4051  eps += dstsize;
4052  if ((eps << 1) >= srcsize) {
4053  dst[0] = ((Sint16) SDL_SwapLE16(sample0));
4054  dst[1] = ((Sint16) SDL_SwapLE16(sample1));
4055  dst[2] = ((Sint16) SDL_SwapLE16(sample2));
4056  dst[3] = ((Sint16) SDL_SwapLE16(sample3));
4057  dst[4] = ((Sint16) SDL_SwapLE16(sample4));
4058  dst[5] = ((Sint16) SDL_SwapLE16(sample5));
4059  dst += 6;
4060  sample0 = (Sint16) ((((Sint32) ((Sint16) SDL_SwapLE16(src[0]))) + ((Sint32) last_sample0)) >> 1);
4061  sample1 = (Sint16) ((((Sint32) ((Sint16) SDL_SwapLE16(src[1]))) + ((Sint32) last_sample1)) >> 1);
4062  sample2 = (Sint16) ((((Sint32) ((Sint16) SDL_SwapLE16(src[2]))) + ((Sint32) last_sample2)) >> 1);
4063  sample3 = (Sint16) ((((Sint32) ((Sint16) SDL_SwapLE16(src[3]))) + ((Sint32) last_sample3)) >> 1);
4064  sample4 = (Sint16) ((((Sint32) ((Sint16) SDL_SwapLE16(src[4]))) + ((Sint32) last_sample4)) >> 1);
4065  sample5 = (Sint16) ((((Sint32) ((Sint16) SDL_SwapLE16(src[5]))) + ((Sint32) last_sample5)) >> 1);
4066  last_sample0 = sample0;
4067  last_sample1 = sample1;
4068  last_sample2 = sample2;
4069  last_sample3 = sample3;
4070  last_sample4 = sample4;
4071  last_sample5 = sample5;
4072  eps -= srcsize;
4073  }
4074  }
4075  cvt->len_cvt = dstsize;
4076  if (cvt->filters[++cvt->filter_index]) {
4077  cvt->filters[cvt->filter_index] (cvt, format);
4078  }
4079 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
SDL_AudioCVT::rate_incr
double rate_incr
Definition: SDL_audio.h:205
SDL_SwapLE16
#define SDL_SwapLE16(X)
Definition: SDL_endian.h:211
src
GLenum src
Definition: SDL_opengl_glext.h:1737
Sint16
int16_t Sint16
A signed 16-bit integer type.
Definition: SDL_stdinc.h:143
static void SDL_Downsample_S16LSB_6c_x2 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 10135 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_SwapLE16, and SDLCALL.

10136 {
10137 #if DEBUG_CONVERT
10138  fprintf(stderr, "Downsample (x2) AUDIO_S16LSB, 6 channels.\n");
10139 #endif
10140 
10141  const int dstsize = cvt->len_cvt / 2;
10142  Sint16 *dst = (Sint16 *) cvt->buf;
10143  const Sint16 *src = (Sint16 *) cvt->buf;
10144  const Sint16 *target = (const Sint16 *) (cvt->buf + dstsize);
10145  Sint32 last_sample0 = (Sint32) ((Sint16) SDL_SwapLE16(src[0]));
10146  Sint32 last_sample1 = (Sint32) ((Sint16) SDL_SwapLE16(src[1]));
10147  Sint32 last_sample2 = (Sint32) ((Sint16) SDL_SwapLE16(src[2]));
10148  Sint32 last_sample3 = (Sint32) ((Sint16) SDL_SwapLE16(src[3]));
10149  Sint32 last_sample4 = (Sint32) ((Sint16) SDL_SwapLE16(src[4]));
10150  Sint32 last_sample5 = (Sint32) ((Sint16) SDL_SwapLE16(src[5]));
10151  while (dst < target) {
10152  const Sint32 sample0 = (Sint32) ((Sint16) SDL_SwapLE16(src[0]));
10153  const Sint32 sample1 = (Sint32) ((Sint16) SDL_SwapLE16(src[1]));
10154  const Sint32 sample2 = (Sint32) ((Sint16) SDL_SwapLE16(src[2]));
10155  const Sint32 sample3 = (Sint32) ((Sint16) SDL_SwapLE16(src[3]));
10156  const Sint32 sample4 = (Sint32) ((Sint16) SDL_SwapLE16(src[4]));
10157  const Sint32 sample5 = (Sint32) ((Sint16) SDL_SwapLE16(src[5]));
10158  src += 12;
10159  dst[0] = (Sint16) ((sample0 + last_sample0) >> 1);
10160  dst[1] = (Sint16) ((sample1 + last_sample1) >> 1);
10161  dst[2] = (Sint16) ((sample2 + last_sample2) >> 1);
10162  dst[3] = (Sint16) ((sample3 + last_sample3) >> 1);
10163  dst[4] = (Sint16) ((sample4 + last_sample4) >> 1);
10164  dst[5] = (Sint16) ((sample5 + last_sample5) >> 1);
10165  last_sample0 = sample0;
10166  last_sample1 = sample1;
10167  last_sample2 = sample2;
10168  last_sample3 = sample3;
10169  last_sample4 = sample4;
10170  last_sample5 = sample5;
10171  dst += 6;
10172  }
10173 
10174  cvt->len_cvt = dstsize;
10175  if (cvt->filters[++cvt->filter_index]) {
10176  cvt->filters[cvt->filter_index] (cvt, format);
10177  }
10178 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
SDL_SwapLE16
#define SDL_SwapLE16(X)
Definition: SDL_endian.h:211
src
GLenum src
Definition: SDL_opengl_glext.h:1737
Sint16
int16_t Sint16
A signed 16-bit integer type.
Definition: SDL_stdinc.h:143
static void SDL_Downsample_S16LSB_6c_x4 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 10245 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_SwapLE16, and SDLCALL.

10246 {
10247 #if DEBUG_CONVERT
10248  fprintf(stderr, "Downsample (x4) AUDIO_S16LSB, 6 channels.\n");
10249 #endif
10250 
10251  const int dstsize = cvt->len_cvt / 4;
10252  Sint16 *dst = (Sint16 *) cvt->buf;
10253  const Sint16 *src = (Sint16 *) cvt->buf;
10254  const Sint16 *target = (const Sint16 *) (cvt->buf + dstsize);
10255  Sint32 last_sample0 = (Sint32) ((Sint16) SDL_SwapLE16(src[0]));
10256  Sint32 last_sample1 = (Sint32) ((Sint16) SDL_SwapLE16(src[1]));
10257  Sint32 last_sample2 = (Sint32) ((Sint16) SDL_SwapLE16(src[2]));
10258  Sint32 last_sample3 = (Sint32) ((Sint16) SDL_SwapLE16(src[3]));
10259  Sint32 last_sample4 = (Sint32) ((Sint16) SDL_SwapLE16(src[4]));
10260  Sint32 last_sample5 = (Sint32) ((Sint16) SDL_SwapLE16(src[5]));
10261  while (dst < target) {
10262  const Sint32 sample0 = (Sint32) ((Sint16) SDL_SwapLE16(src[0]));
10263  const Sint32 sample1 = (Sint32) ((Sint16) SDL_SwapLE16(src[1]));
10264  const Sint32 sample2 = (Sint32) ((Sint16) SDL_SwapLE16(src[2]));
10265  const Sint32 sample3 = (Sint32) ((Sint16) SDL_SwapLE16(src[3]));
10266  const Sint32 sample4 = (Sint32) ((Sint16) SDL_SwapLE16(src[4]));
10267  const Sint32 sample5 = (Sint32) ((Sint16) SDL_SwapLE16(src[5]));
10268  src += 24;
10269  dst[0] = (Sint16) ((sample0 + last_sample0) >> 1);
10270  dst[1] = (Sint16) ((sample1 + last_sample1) >> 1);
10271  dst[2] = (Sint16) ((sample2 + last_sample2) >> 1);
10272  dst[3] = (Sint16) ((sample3 + last_sample3) >> 1);
10273  dst[4] = (Sint16) ((sample4 + last_sample4) >> 1);
10274  dst[5] = (Sint16) ((sample5 + last_sample5) >> 1);
10275  last_sample0 = sample0;
10276  last_sample1 = sample1;
10277  last_sample2 = sample2;
10278  last_sample3 = sample3;
10279  last_sample4 = sample4;
10280  last_sample5 = sample5;
10281  dst += 6;
10282  }
10283 
10284  cvt->len_cvt = dstsize;
10285  if (cvt->filters[++cvt->filter_index]) {
10286  cvt->filters[cvt->filter_index] (cvt, format);
10287  }
10288 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
SDL_SwapLE16
#define SDL_SwapLE16(X)
Definition: SDL_endian.h:211
src
GLenum src
Definition: SDL_opengl_glext.h:1737
Sint16
int16_t Sint16
A signed 16-bit integer type.
Definition: SDL_stdinc.h:143
static void SDL_Downsample_S16LSB_8c ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 4149 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_AudioCVT::rate_incr, SDL_SwapLE16, and SDLCALL.

4150 {
4151 #if DEBUG_CONVERT
4152  fprintf(stderr, "Downsample arbitrary (x%f) AUDIO_S16LSB, 8 channels.\n", cvt->rate_incr);
4153 #endif
4154 
4155  const int srcsize = cvt->len_cvt - 256;
4156  const int dstsize = (int) (((double)(cvt->len_cvt/16)) * cvt->rate_incr) * 16;
4157  register int eps = 0;
4158  Sint16 *dst = (Sint16 *) cvt->buf;
4159  const Sint16 *src = (Sint16 *) cvt->buf;
4160  const Sint16 *target = (const Sint16 *) (cvt->buf + dstsize);
4161  Sint16 sample0 = ((Sint16) SDL_SwapLE16(src[0]));
4162  Sint16 sample1 = ((Sint16) SDL_SwapLE16(src[1]));
4163  Sint16 sample2 = ((Sint16) SDL_SwapLE16(src[2]));
4164  Sint16 sample3 = ((Sint16) SDL_SwapLE16(src[3]));
4165  Sint16 sample4 = ((Sint16) SDL_SwapLE16(src[4]));
4166  Sint16 sample5 = ((Sint16) SDL_SwapLE16(src[5]));
4167  Sint16 sample6 = ((Sint16) SDL_SwapLE16(src[6]));
4168  Sint16 sample7 = ((Sint16) SDL_SwapLE16(src[7]));
4169  Sint16 last_sample0 = sample0;
4170  Sint16 last_sample1 = sample1;
4171  Sint16 last_sample2 = sample2;
4172  Sint16 last_sample3 = sample3;
4173  Sint16 last_sample4 = sample4;
4174  Sint16 last_sample5 = sample5;
4175  Sint16 last_sample6 = sample6;
4176  Sint16 last_sample7 = sample7;
4177  while (dst < target) {
4178  src += 8;
4179  eps += dstsize;
4180  if ((eps << 1) >= srcsize) {
4181  dst[0] = ((Sint16) SDL_SwapLE16(sample0));
4182  dst[1] = ((Sint16) SDL_SwapLE16(sample1));
4183  dst[2] = ((Sint16) SDL_SwapLE16(sample2));
4184  dst[3] = ((Sint16) SDL_SwapLE16(sample3));
4185  dst[4] = ((Sint16) SDL_SwapLE16(sample4));
4186  dst[5] = ((Sint16) SDL_SwapLE16(sample5));
4187  dst[6] = ((Sint16) SDL_SwapLE16(sample6));
4188  dst[7] = ((Sint16) SDL_SwapLE16(sample7));
4189  dst += 8;
4190  sample0 = (Sint16) ((((Sint32) ((Sint16) SDL_SwapLE16(src[0]))) + ((Sint32) last_sample0)) >> 1);
4191  sample1 = (Sint16) ((((Sint32) ((Sint16) SDL_SwapLE16(src[1]))) + ((Sint32) last_sample1)) >> 1);
4192  sample2 = (Sint16) ((((Sint32) ((Sint16) SDL_SwapLE16(src[2]))) + ((Sint32) last_sample2)) >> 1);
4193  sample3 = (Sint16) ((((Sint32) ((Sint16) SDL_SwapLE16(src[3]))) + ((Sint32) last_sample3)) >> 1);
4194  sample4 = (Sint16) ((((Sint32) ((Sint16) SDL_SwapLE16(src[4]))) + ((Sint32) last_sample4)) >> 1);
4195  sample5 = (Sint16) ((((Sint32) ((Sint16) SDL_SwapLE16(src[5]))) + ((Sint32) last_sample5)) >> 1);
4196  sample6 = (Sint16) ((((Sint32) ((Sint16) SDL_SwapLE16(src[6]))) + ((Sint32) last_sample6)) >> 1);
4197  sample7 = (Sint16) ((((Sint32) ((Sint16) SDL_SwapLE16(src[7]))) + ((Sint32) last_sample7)) >> 1);
4198  last_sample0 = sample0;
4199  last_sample1 = sample1;
4200  last_sample2 = sample2;
4201  last_sample3 = sample3;
4202  last_sample4 = sample4;
4203  last_sample5 = sample5;
4204  last_sample6 = sample6;
4205  last_sample7 = sample7;
4206  eps -= srcsize;
4207  }
4208  }
4209  cvt->len_cvt = dstsize;
4210  if (cvt->filters[++cvt->filter_index]) {
4211  cvt->filters[cvt->filter_index] (cvt, format);
4212  }
4213 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
SDL_AudioCVT::rate_incr
double rate_incr
Definition: SDL_audio.h:205
SDL_SwapLE16
#define SDL_SwapLE16(X)
Definition: SDL_endian.h:211
src
GLenum src
Definition: SDL_opengl_glext.h:1737
Sint16
int16_t Sint16
A signed 16-bit integer type.
Definition: SDL_stdinc.h:143
static void SDL_Downsample_S16LSB_8c_x2 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 10353 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_SwapLE16, and SDLCALL.

10354 {
10355 #if DEBUG_CONVERT
10356  fprintf(stderr, "Downsample (x2) AUDIO_S16LSB, 8 channels.\n");
10357 #endif
10358 
10359  const int dstsize = cvt->len_cvt / 2;
10360  Sint16 *dst = (Sint16 *) cvt->buf;
10361  const Sint16 *src = (Sint16 *) cvt->buf;
10362  const Sint16 *target = (const Sint16 *) (cvt->buf + dstsize);
10363  Sint32 last_sample0 = (Sint32) ((Sint16) SDL_SwapLE16(src[0]));
10364  Sint32 last_sample1 = (Sint32) ((Sint16) SDL_SwapLE16(src[1]));
10365  Sint32 last_sample2 = (Sint32) ((Sint16) SDL_SwapLE16(src[2]));
10366  Sint32 last_sample3 = (Sint32) ((Sint16) SDL_SwapLE16(src[3]));
10367  Sint32 last_sample4 = (Sint32) ((Sint16) SDL_SwapLE16(src[4]));
10368  Sint32 last_sample5 = (Sint32) ((Sint16) SDL_SwapLE16(src[5]));
10369  Sint32 last_sample6 = (Sint32) ((Sint16) SDL_SwapLE16(src[6]));
10370  Sint32 last_sample7 = (Sint32) ((Sint16) SDL_SwapLE16(src[7]));
10371  while (dst < target) {
10372  const Sint32 sample0 = (Sint32) ((Sint16) SDL_SwapLE16(src[0]));
10373  const Sint32 sample1 = (Sint32) ((Sint16) SDL_SwapLE16(src[1]));
10374  const Sint32 sample2 = (Sint32) ((Sint16) SDL_SwapLE16(src[2]));
10375  const Sint32 sample3 = (Sint32) ((Sint16) SDL_SwapLE16(src[3]));
10376  const Sint32 sample4 = (Sint32) ((Sint16) SDL_SwapLE16(src[4]));
10377  const Sint32 sample5 = (Sint32) ((Sint16) SDL_SwapLE16(src[5]));
10378  const Sint32 sample6 = (Sint32) ((Sint16) SDL_SwapLE16(src[6]));
10379  const Sint32 sample7 = (Sint32) ((Sint16) SDL_SwapLE16(src[7]));
10380  src += 16;
10381  dst[0] = (Sint16) ((sample0 + last_sample0) >> 1);
10382  dst[1] = (Sint16) ((sample1 + last_sample1) >> 1);
10383  dst[2] = (Sint16) ((sample2 + last_sample2) >> 1);
10384  dst[3] = (Sint16) ((sample3 + last_sample3) >> 1);
10385  dst[4] = (Sint16) ((sample4 + last_sample4) >> 1);
10386  dst[5] = (Sint16) ((sample5 + last_sample5) >> 1);
10387  dst[6] = (Sint16) ((sample6 + last_sample6) >> 1);
10388  dst[7] = (Sint16) ((sample7 + last_sample7) >> 1);
10389  last_sample0 = sample0;
10390  last_sample1 = sample1;
10391  last_sample2 = sample2;
10392  last_sample3 = sample3;
10393  last_sample4 = sample4;
10394  last_sample5 = sample5;
10395  last_sample6 = sample6;
10396  last_sample7 = sample7;
10397  dst += 8;
10398  }
10399 
10400  cvt->len_cvt = dstsize;
10401  if (cvt->filters[++cvt->filter_index]) {
10402  cvt->filters[cvt->filter_index] (cvt, format);
10403  }
10404 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
SDL_SwapLE16
#define SDL_SwapLE16(X)
Definition: SDL_endian.h:211
src
GLenum src
Definition: SDL_opengl_glext.h:1737
Sint16
int16_t Sint16
A signed 16-bit integer type.
Definition: SDL_stdinc.h:143
static void SDL_Downsample_S16LSB_8c_x4 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 10485 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_SwapLE16, and SDLCALL.

10486 {
10487 #if DEBUG_CONVERT
10488  fprintf(stderr, "Downsample (x4) AUDIO_S16LSB, 8 channels.\n");
10489 #endif
10490 
10491  const int dstsize = cvt->len_cvt / 4;
10492  Sint16 *dst = (Sint16 *) cvt->buf;
10493  const Sint16 *src = (Sint16 *) cvt->buf;
10494  const Sint16 *target = (const Sint16 *) (cvt->buf + dstsize);
10495  Sint32 last_sample0 = (Sint32) ((Sint16) SDL_SwapLE16(src[0]));
10496  Sint32 last_sample1 = (Sint32) ((Sint16) SDL_SwapLE16(src[1]));
10497  Sint32 last_sample2 = (Sint32) ((Sint16) SDL_SwapLE16(src[2]));
10498  Sint32 last_sample3 = (Sint32) ((Sint16) SDL_SwapLE16(src[3]));
10499  Sint32 last_sample4 = (Sint32) ((Sint16) SDL_SwapLE16(src[4]));
10500  Sint32 last_sample5 = (Sint32) ((Sint16) SDL_SwapLE16(src[5]));
10501  Sint32 last_sample6 = (Sint32) ((Sint16) SDL_SwapLE16(src[6]));
10502  Sint32 last_sample7 = (Sint32) ((Sint16) SDL_SwapLE16(src[7]));
10503  while (dst < target) {
10504  const Sint32 sample0 = (Sint32) ((Sint16) SDL_SwapLE16(src[0]));
10505  const Sint32 sample1 = (Sint32) ((Sint16) SDL_SwapLE16(src[1]));
10506  const Sint32 sample2 = (Sint32) ((Sint16) SDL_SwapLE16(src[2]));
10507  const Sint32 sample3 = (Sint32) ((Sint16) SDL_SwapLE16(src[3]));
10508  const Sint32 sample4 = (Sint32) ((Sint16) SDL_SwapLE16(src[4]));
10509  const Sint32 sample5 = (Sint32) ((Sint16) SDL_SwapLE16(src[5]));
10510  const Sint32 sample6 = (Sint32) ((Sint16) SDL_SwapLE16(src[6]));
10511  const Sint32 sample7 = (Sint32) ((Sint16) SDL_SwapLE16(src[7]));
10512  src += 32;
10513  dst[0] = (Sint16) ((sample0 + last_sample0) >> 1);
10514  dst[1] = (Sint16) ((sample1 + last_sample1) >> 1);
10515  dst[2] = (Sint16) ((sample2 + last_sample2) >> 1);
10516  dst[3] = (Sint16) ((sample3 + last_sample3) >> 1);
10517  dst[4] = (Sint16) ((sample4 + last_sample4) >> 1);
10518  dst[5] = (Sint16) ((sample5 + last_sample5) >> 1);
10519  dst[6] = (Sint16) ((sample6 + last_sample6) >> 1);
10520  dst[7] = (Sint16) ((sample7 + last_sample7) >> 1);
10521  last_sample0 = sample0;
10522  last_sample1 = sample1;
10523  last_sample2 = sample2;
10524  last_sample3 = sample3;
10525  last_sample4 = sample4;
10526  last_sample5 = sample5;
10527  last_sample6 = sample6;
10528  last_sample7 = sample7;
10529  dst += 8;
10530  }
10531 
10532  cvt->len_cvt = dstsize;
10533  if (cvt->filters[++cvt->filter_index]) {
10534  cvt->filters[cvt->filter_index] (cvt, format);
10535  }
10536 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
SDL_SwapLE16
#define SDL_SwapLE16(X)
Definition: SDL_endian.h:211
src
GLenum src
Definition: SDL_opengl_glext.h:1737
Sint16
int16_t Sint16
A signed 16-bit integer type.
Definition: SDL_stdinc.h:143
static void SDL_Downsample_S16MSB_1c ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 4728 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_AudioCVT::rate_incr, SDL_SwapBE16, and SDLCALL.

4729 {
4730 #if DEBUG_CONVERT
4731  fprintf(stderr, "Downsample arbitrary (x%f) AUDIO_S16MSB, 1 channels.\n", cvt->rate_incr);
4732 #endif
4733 
4734  const int srcsize = cvt->len_cvt - 32;
4735  const int dstsize = (int) (((double)(cvt->len_cvt/2)) * cvt->rate_incr) * 2;
4736  register int eps = 0;
4737  Sint16 *dst = (Sint16 *) cvt->buf;
4738  const Sint16 *src = (Sint16 *) cvt->buf;
4739  const Sint16 *target = (const Sint16 *) (cvt->buf + dstsize);
4740  Sint16 sample0 = ((Sint16) SDL_SwapBE16(src[0]));
4741  Sint16 last_sample0 = sample0;
4742  while (dst < target) {
4743  src++;
4744  eps += dstsize;
4745  if ((eps << 1) >= srcsize) {
4746  dst[0] = ((Sint16) SDL_SwapBE16(sample0));
4747  dst++;
4748  sample0 = (Sint16) ((((Sint32) ((Sint16) SDL_SwapBE16(src[0]))) + ((Sint32) last_sample0)) >> 1);
4749  last_sample0 = sample0;
4750  eps -= srcsize;
4751  }
4752  }
4753  cvt->len_cvt = dstsize;
4754  if (cvt->filters[++cvt->filter_index]) {
4755  cvt->filters[cvt->filter_index] (cvt, format);
4756  }
4757 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_SwapBE16
#define SDL_SwapBE16(X)
Definition: SDL_endian.h:215
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
SDL_AudioCVT::rate_incr
double rate_incr
Definition: SDL_audio.h:205
src
GLenum src
Definition: SDL_opengl_glext.h:1737
Sint16
int16_t Sint16
A signed 16-bit integer type.
Definition: SDL_stdinc.h:143
static void SDL_Downsample_S16MSB_1c_x2 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 11426 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_SwapBE16, and SDLCALL.

11427 {
11428 #if DEBUG_CONVERT
11429  fprintf(stderr, "Downsample (x2) AUDIO_S16MSB, 1 channels.\n");
11430 #endif
11431 
11432  const int dstsize = cvt->len_cvt / 2;
11433  Sint16 *dst = (Sint16 *) cvt->buf;
11434  const Sint16 *src = (Sint16 *) cvt->buf;
11435  const Sint16 *target = (const Sint16 *) (cvt->buf + dstsize);
11436  Sint32 last_sample0 = (Sint32) ((Sint16) SDL_SwapBE16(src[0]));
11437  while (dst < target) {
11438  const Sint32 sample0 = (Sint32) ((Sint16) SDL_SwapBE16(src[0]));
11439  src += 2;
11440  dst[0] = (Sint16) ((sample0 + last_sample0) >> 1);
11441  last_sample0 = sample0;
11442  dst++;
11443  }
11444 
11445  cvt->len_cvt = dstsize;
11446  if (cvt->filters[++cvt->filter_index]) {
11447  cvt->filters[cvt->filter_index] (cvt, format);
11448  }
11449 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_SwapBE16
#define SDL_SwapBE16(X)
Definition: SDL_endian.h:215
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
src
GLenum src
Definition: SDL_opengl_glext.h:1737
Sint16
int16_t Sint16
A signed 16-bit integer type.
Definition: SDL_stdinc.h:143
static void SDL_Downsample_S16MSB_1c_x4 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 11481 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_SwapBE16, and SDLCALL.

11482 {
11483 #if DEBUG_CONVERT
11484  fprintf(stderr, "Downsample (x4) AUDIO_S16MSB, 1 channels.\n");
11485 #endif
11486 
11487  const int dstsize = cvt->len_cvt / 4;
11488  Sint16 *dst = (Sint16 *) cvt->buf;
11489  const Sint16 *src = (Sint16 *) cvt->buf;
11490  const Sint16 *target = (const Sint16 *) (cvt->buf + dstsize);
11491  Sint32 last_sample0 = (Sint32) ((Sint16) SDL_SwapBE16(src[0]));
11492  while (dst < target) {
11493  const Sint32 sample0 = (Sint32) ((Sint16) SDL_SwapBE16(src[0]));
11494  src += 4;
11495  dst[0] = (Sint16) ((sample0 + last_sample0) >> 1);
11496  last_sample0 = sample0;
11497  dst++;
11498  }
11499 
11500  cvt->len_cvt = dstsize;
11501  if (cvt->filters[++cvt->filter_index]) {
11502  cvt->filters[cvt->filter_index] (cvt, format);
11503  }
11504 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_SwapBE16
#define SDL_SwapBE16(X)
Definition: SDL_endian.h:215
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
src
GLenum src
Definition: SDL_opengl_glext.h:1737
Sint16
int16_t Sint16
A signed 16-bit integer type.
Definition: SDL_stdinc.h:143
static void SDL_Downsample_S16MSB_2c ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 4797 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_AudioCVT::rate_incr, SDL_SwapBE16, and SDLCALL.

4798 {
4799 #if DEBUG_CONVERT
4800  fprintf(stderr, "Downsample arbitrary (x%f) AUDIO_S16MSB, 2 channels.\n", cvt->rate_incr);
4801 #endif
4802 
4803  const int srcsize = cvt->len_cvt - 64;
4804  const int dstsize = (int) (((double)(cvt->len_cvt/4)) * cvt->rate_incr) * 4;
4805  register int eps = 0;
4806  Sint16 *dst = (Sint16 *) cvt->buf;
4807  const Sint16 *src = (Sint16 *) cvt->buf;
4808  const Sint16 *target = (const Sint16 *) (cvt->buf + dstsize);
4809  Sint16 sample0 = ((Sint16) SDL_SwapBE16(src[0]));
4810  Sint16 sample1 = ((Sint16) SDL_SwapBE16(src[1]));
4811  Sint16 last_sample0 = sample0;
4812  Sint16 last_sample1 = sample1;
4813  while (dst < target) {
4814  src += 2;
4815  eps += dstsize;
4816  if ((eps << 1) >= srcsize) {
4817  dst[0] = ((Sint16) SDL_SwapBE16(sample0));
4818  dst[1] = ((Sint16) SDL_SwapBE16(sample1));
4819  dst += 2;
4820  sample0 = (Sint16) ((((Sint32) ((Sint16) SDL_SwapBE16(src[0]))) + ((Sint32) last_sample0)) >> 1);
4821  sample1 = (Sint16) ((((Sint32) ((Sint16) SDL_SwapBE16(src[1]))) + ((Sint32) last_sample1)) >> 1);
4822  last_sample0 = sample0;
4823  last_sample1 = sample1;
4824  eps -= srcsize;
4825  }
4826  }
4827  cvt->len_cvt = dstsize;
4828  if (cvt->filters[++cvt->filter_index]) {
4829  cvt->filters[cvt->filter_index] (cvt, format);
4830  }
4831 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_SwapBE16
#define SDL_SwapBE16(X)
Definition: SDL_endian.h:215
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
SDL_AudioCVT::rate_incr
double rate_incr
Definition: SDL_audio.h:205
src
GLenum src
Definition: SDL_opengl_glext.h:1737
Sint16
int16_t Sint16
A signed 16-bit integer type.
Definition: SDL_stdinc.h:143
static void SDL_Downsample_S16MSB_2c_x2 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 11539 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_SwapBE16, and SDLCALL.

11540 {
11541 #if DEBUG_CONVERT
11542  fprintf(stderr, "Downsample (x2) AUDIO_S16MSB, 2 channels.\n");
11543 #endif
11544 
11545  const int dstsize = cvt->len_cvt / 2;
11546  Sint16 *dst = (Sint16 *) cvt->buf;
11547  const Sint16 *src = (Sint16 *) cvt->buf;
11548  const Sint16 *target = (const Sint16 *) (cvt->buf + dstsize);
11549  Sint32 last_sample0 = (Sint32) ((Sint16) SDL_SwapBE16(src[0]));
11550  Sint32 last_sample1 = (Sint32) ((Sint16) SDL_SwapBE16(src[1]));
11551  while (dst < target) {
11552  const Sint32 sample0 = (Sint32) ((Sint16) SDL_SwapBE16(src[0]));
11553  const Sint32 sample1 = (Sint32) ((Sint16) SDL_SwapBE16(src[1]));
11554  src += 4;
11555  dst[0] = (Sint16) ((sample0 + last_sample0) >> 1);
11556  dst[1] = (Sint16) ((sample1 + last_sample1) >> 1);
11557  last_sample0 = sample0;
11558  last_sample1 = sample1;
11559  dst += 2;
11560  }
11561 
11562  cvt->len_cvt = dstsize;
11563  if (cvt->filters[++cvt->filter_index]) {
11564  cvt->filters[cvt->filter_index] (cvt, format);
11565  }
11566 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_SwapBE16
#define SDL_SwapBE16(X)
Definition: SDL_endian.h:215
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
src
GLenum src
Definition: SDL_opengl_glext.h:1737
Sint16
int16_t Sint16
A signed 16-bit integer type.
Definition: SDL_stdinc.h:143
static void SDL_Downsample_S16MSB_2c_x4 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 11605 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_SwapBE16, and SDLCALL.

11606 {
11607 #if DEBUG_CONVERT
11608  fprintf(stderr, "Downsample (x4) AUDIO_S16MSB, 2 channels.\n");
11609 #endif
11610 
11611  const int dstsize = cvt->len_cvt / 4;
11612  Sint16 *dst = (Sint16 *) cvt->buf;
11613  const Sint16 *src = (Sint16 *) cvt->buf;
11614  const Sint16 *target = (const Sint16 *) (cvt->buf + dstsize);
11615  Sint32 last_sample0 = (Sint32) ((Sint16) SDL_SwapBE16(src[0]));
11616  Sint32 last_sample1 = (Sint32) ((Sint16) SDL_SwapBE16(src[1]));
11617  while (dst < target) {
11618  const Sint32 sample0 = (Sint32) ((Sint16) SDL_SwapBE16(src[0]));
11619  const Sint32 sample1 = (Sint32) ((Sint16) SDL_SwapBE16(src[1]));
11620  src += 8;
11621  dst[0] = (Sint16) ((sample0 + last_sample0) >> 1);
11622  dst[1] = (Sint16) ((sample1 + last_sample1) >> 1);
11623  last_sample0 = sample0;
11624  last_sample1 = sample1;
11625  dst += 2;
11626  }
11627 
11628  cvt->len_cvt = dstsize;
11629  if (cvt->filters[++cvt->filter_index]) {
11630  cvt->filters[cvt->filter_index] (cvt, format);
11631  }
11632 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_SwapBE16
#define SDL_SwapBE16(X)
Definition: SDL_endian.h:215
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
src
GLenum src
Definition: SDL_opengl_glext.h:1737
Sint16
int16_t Sint16
A signed 16-bit integer type.
Definition: SDL_stdinc.h:143
static void SDL_Downsample_S16MSB_4c ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 4881 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_AudioCVT::rate_incr, SDL_SwapBE16, and SDLCALL.

4882 {
4883 #if DEBUG_CONVERT
4884  fprintf(stderr, "Downsample arbitrary (x%f) AUDIO_S16MSB, 4 channels.\n", cvt->rate_incr);
4885 #endif
4886 
4887  const int srcsize = cvt->len_cvt - 128;
4888  const int dstsize = (int) (((double)(cvt->len_cvt/8)) * cvt->rate_incr) * 8;
4889  register int eps = 0;
4890  Sint16 *dst = (Sint16 *) cvt->buf;
4891  const Sint16 *src = (Sint16 *) cvt->buf;
4892  const Sint16 *target = (const Sint16 *) (cvt->buf + dstsize);
4893  Sint16 sample0 = ((Sint16) SDL_SwapBE16(src[0]));
4894  Sint16 sample1 = ((Sint16) SDL_SwapBE16(src[1]));
4895  Sint16 sample2 = ((Sint16) SDL_SwapBE16(src[2]));
4896  Sint16 sample3 = ((Sint16) SDL_SwapBE16(src[3]));
4897  Sint16 last_sample0 = sample0;
4898  Sint16 last_sample1 = sample1;
4899  Sint16 last_sample2 = sample2;
4900  Sint16 last_sample3 = sample3;
4901  while (dst < target) {
4902  src += 4;
4903  eps += dstsize;
4904  if ((eps << 1) >= srcsize) {
4905  dst[0] = ((Sint16) SDL_SwapBE16(sample0));
4906  dst[1] = ((Sint16) SDL_SwapBE16(sample1));
4907  dst[2] = ((Sint16) SDL_SwapBE16(sample2));
4908  dst[3] = ((Sint16) SDL_SwapBE16(sample3));
4909  dst += 4;
4910  sample0 = (Sint16) ((((Sint32) ((Sint16) SDL_SwapBE16(src[0]))) + ((Sint32) last_sample0)) >> 1);
4911  sample1 = (Sint16) ((((Sint32) ((Sint16) SDL_SwapBE16(src[1]))) + ((Sint32) last_sample1)) >> 1);
4912  sample2 = (Sint16) ((((Sint32) ((Sint16) SDL_SwapBE16(src[2]))) + ((Sint32) last_sample2)) >> 1);
4913  sample3 = (Sint16) ((((Sint32) ((Sint16) SDL_SwapBE16(src[3]))) + ((Sint32) last_sample3)) >> 1);
4914  last_sample0 = sample0;
4915  last_sample1 = sample1;
4916  last_sample2 = sample2;
4917  last_sample3 = sample3;
4918  eps -= srcsize;
4919  }
4920  }
4921  cvt->len_cvt = dstsize;
4922  if (cvt->filters[++cvt->filter_index]) {
4923  cvt->filters[cvt->filter_index] (cvt, format);
4924  }
4925 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_SwapBE16
#define SDL_SwapBE16(X)
Definition: SDL_endian.h:215
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
SDL_AudioCVT::rate_incr
double rate_incr
Definition: SDL_audio.h:205
src
GLenum src
Definition: SDL_opengl_glext.h:1737
Sint16
int16_t Sint16
A signed 16-bit integer type.
Definition: SDL_stdinc.h:143
static void SDL_Downsample_S16MSB_4c_x2 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 11677 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_SwapBE16, and SDLCALL.

11678 {
11679 #if DEBUG_CONVERT
11680  fprintf(stderr, "Downsample (x2) AUDIO_S16MSB, 4 channels.\n");
11681 #endif
11682 
11683  const int dstsize = cvt->len_cvt / 2;
11684  Sint16 *dst = (Sint16 *) cvt->buf;
11685  const Sint16 *src = (Sint16 *) cvt->buf;
11686  const Sint16 *target = (const Sint16 *) (cvt->buf + dstsize);
11687  Sint32 last_sample0 = (Sint32) ((Sint16) SDL_SwapBE16(src[0]));
11688  Sint32 last_sample1 = (Sint32) ((Sint16) SDL_SwapBE16(src[1]));
11689  Sint32 last_sample2 = (Sint32) ((Sint16) SDL_SwapBE16(src[2]));
11690  Sint32 last_sample3 = (Sint32) ((Sint16) SDL_SwapBE16(src[3]));
11691  while (dst < target) {
11692  const Sint32 sample0 = (Sint32) ((Sint16) SDL_SwapBE16(src[0]));
11693  const Sint32 sample1 = (Sint32) ((Sint16) SDL_SwapBE16(src[1]));
11694  const Sint32 sample2 = (Sint32) ((Sint16) SDL_SwapBE16(src[2]));
11695  const Sint32 sample3 = (Sint32) ((Sint16) SDL_SwapBE16(src[3]));
11696  src += 8;
11697  dst[0] = (Sint16) ((sample0 + last_sample0) >> 1);
11698  dst[1] = (Sint16) ((sample1 + last_sample1) >> 1);
11699  dst[2] = (Sint16) ((sample2 + last_sample2) >> 1);
11700  dst[3] = (Sint16) ((sample3 + last_sample3) >> 1);
11701  last_sample0 = sample0;
11702  last_sample1 = sample1;
11703  last_sample2 = sample2;
11704  last_sample3 = sample3;
11705  dst += 4;
11706  }
11707 
11708  cvt->len_cvt = dstsize;
11709  if (cvt->filters[++cvt->filter_index]) {
11710  cvt->filters[cvt->filter_index] (cvt, format);
11711  }
11712 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_SwapBE16
#define SDL_SwapBE16(X)
Definition: SDL_endian.h:215
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
src
GLenum src
Definition: SDL_opengl_glext.h:1737
Sint16
int16_t Sint16
A signed 16-bit integer type.
Definition: SDL_stdinc.h:143
static void SDL_Downsample_S16MSB_4c_x4 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 11765 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_SwapBE16, and SDLCALL.

11766 {
11767 #if DEBUG_CONVERT
11768  fprintf(stderr, "Downsample (x4) AUDIO_S16MSB, 4 channels.\n");
11769 #endif
11770 
11771  const int dstsize = cvt->len_cvt / 4;
11772  Sint16 *dst = (Sint16 *) cvt->buf;
11773  const Sint16 *src = (Sint16 *) cvt->buf;
11774  const Sint16 *target = (const Sint16 *) (cvt->buf + dstsize);
11775  Sint32 last_sample0 = (Sint32) ((Sint16) SDL_SwapBE16(src[0]));
11776  Sint32 last_sample1 = (Sint32) ((Sint16) SDL_SwapBE16(src[1]));
11777  Sint32 last_sample2 = (Sint32) ((Sint16) SDL_SwapBE16(src[2]));
11778  Sint32 last_sample3 = (Sint32) ((Sint16) SDL_SwapBE16(src[3]));
11779  while (dst < target) {
11780  const Sint32 sample0 = (Sint32) ((Sint16) SDL_SwapBE16(src[0]));
11781  const Sint32 sample1 = (Sint32) ((Sint16) SDL_SwapBE16(src[1]));
11782  const Sint32 sample2 = (Sint32) ((Sint16) SDL_SwapBE16(src[2]));
11783  const Sint32 sample3 = (Sint32) ((Sint16) SDL_SwapBE16(src[3]));
11784  src += 16;
11785  dst[0] = (Sint16) ((sample0 + last_sample0) >> 1);
11786  dst[1] = (Sint16) ((sample1 + last_sample1) >> 1);
11787  dst[2] = (Sint16) ((sample2 + last_sample2) >> 1);
11788  dst[3] = (Sint16) ((sample3 + last_sample3) >> 1);
11789  last_sample0 = sample0;
11790  last_sample1 = sample1;
11791  last_sample2 = sample2;
11792  last_sample3 = sample3;
11793  dst += 4;
11794  }
11795 
11796  cvt->len_cvt = dstsize;
11797  if (cvt->filters[++cvt->filter_index]) {
11798  cvt->filters[cvt->filter_index] (cvt, format);
11799  }
11800 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_SwapBE16
#define SDL_SwapBE16(X)
Definition: SDL_endian.h:215
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
src
GLenum src
Definition: SDL_opengl_glext.h:1737
Sint16
int16_t Sint16
A signed 16-bit integer type.
Definition: SDL_stdinc.h:143
static void SDL_Downsample_S16MSB_6c ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 4985 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_AudioCVT::rate_incr, SDL_SwapBE16, and SDLCALL.

4986 {
4987 #if DEBUG_CONVERT
4988  fprintf(stderr, "Downsample arbitrary (x%f) AUDIO_S16MSB, 6 channels.\n", cvt->rate_incr);
4989 #endif
4990 
4991  const int srcsize = cvt->len_cvt - 192;
4992  const int dstsize = (int) (((double)(cvt->len_cvt/12)) * cvt->rate_incr) * 12;
4993  register int eps = 0;
4994  Sint16 *dst = (Sint16 *) cvt->buf;
4995  const Sint16 *src = (Sint16 *) cvt->buf;
4996  const Sint16 *target = (const Sint16 *) (cvt->buf + dstsize);
4997  Sint16 sample0 = ((Sint16) SDL_SwapBE16(src[0]));
4998  Sint16 sample1 = ((Sint16) SDL_SwapBE16(src[1]));
4999  Sint16 sample2 = ((Sint16) SDL_SwapBE16(src[2]));
5000  Sint16 sample3 = ((Sint16) SDL_SwapBE16(src[3]));
5001  Sint16 sample4 = ((Sint16) SDL_SwapBE16(src[4]));
5002  Sint16 sample5 = ((Sint16) SDL_SwapBE16(src[5]));
5003  Sint16 last_sample0 = sample0;
5004  Sint16 last_sample1 = sample1;
5005  Sint16 last_sample2 = sample2;
5006  Sint16 last_sample3 = sample3;
5007  Sint16 last_sample4 = sample4;
5008  Sint16 last_sample5 = sample5;
5009  while (dst < target) {
5010  src += 6;
5011  eps += dstsize;
5012  if ((eps << 1) >= srcsize) {
5013  dst[0] = ((Sint16) SDL_SwapBE16(sample0));
5014  dst[1] = ((Sint16) SDL_SwapBE16(sample1));
5015  dst[2] = ((Sint16) SDL_SwapBE16(sample2));
5016  dst[3] = ((Sint16) SDL_SwapBE16(sample3));
5017  dst[4] = ((Sint16) SDL_SwapBE16(sample4));
5018  dst[5] = ((Sint16) SDL_SwapBE16(sample5));
5019  dst += 6;
5020  sample0 = (Sint16) ((((Sint32) ((Sint16) SDL_SwapBE16(src[0]))) + ((Sint32) last_sample0)) >> 1);
5021  sample1 = (Sint16) ((((Sint32) ((Sint16) SDL_SwapBE16(src[1]))) + ((Sint32) last_sample1)) >> 1);
5022  sample2 = (Sint16) ((((Sint32) ((Sint16) SDL_SwapBE16(src[2]))) + ((Sint32) last_sample2)) >> 1);
5023  sample3 = (Sint16) ((((Sint32) ((Sint16) SDL_SwapBE16(src[3]))) + ((Sint32) last_sample3)) >> 1);
5024  sample4 = (Sint16) ((((Sint32) ((Sint16) SDL_SwapBE16(src[4]))) + ((Sint32) last_sample4)) >> 1);
5025  sample5 = (Sint16) ((((Sint32) ((Sint16) SDL_SwapBE16(src[5]))) + ((Sint32) last_sample5)) >> 1);
5026  last_sample0 = sample0;
5027  last_sample1 = sample1;
5028  last_sample2 = sample2;
5029  last_sample3 = sample3;
5030  last_sample4 = sample4;
5031  last_sample5 = sample5;
5032  eps -= srcsize;
5033  }
5034  }
5035  cvt->len_cvt = dstsize;
5036  if (cvt->filters[++cvt->filter_index]) {
5037  cvt->filters[cvt->filter_index] (cvt, format);
5038  }
5039 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_SwapBE16
#define SDL_SwapBE16(X)
Definition: SDL_endian.h:215
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
SDL_AudioCVT::rate_incr
double rate_incr
Definition: SDL_audio.h:205
src
GLenum src
Definition: SDL_opengl_glext.h:1737
Sint16
int16_t Sint16
A signed 16-bit integer type.
Definition: SDL_stdinc.h:143
static void SDL_Downsample_S16MSB_6c_x2 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 11855 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_SwapBE16, and SDLCALL.

11856 {
11857 #if DEBUG_CONVERT
11858  fprintf(stderr, "Downsample (x2) AUDIO_S16MSB, 6 channels.\n");
11859 #endif
11860 
11861  const int dstsize = cvt->len_cvt / 2;
11862  Sint16 *dst = (Sint16 *) cvt->buf;
11863  const Sint16 *src = (Sint16 *) cvt->buf;
11864  const Sint16 *target = (const Sint16 *) (cvt->buf + dstsize);
11865  Sint32 last_sample0 = (Sint32) ((Sint16) SDL_SwapBE16(src[0]));
11866  Sint32 last_sample1 = (Sint32) ((Sint16) SDL_SwapBE16(src[1]));
11867  Sint32 last_sample2 = (Sint32) ((Sint16) SDL_SwapBE16(src[2]));
11868  Sint32 last_sample3 = (Sint32) ((Sint16) SDL_SwapBE16(src[3]));
11869  Sint32 last_sample4 = (Sint32) ((Sint16) SDL_SwapBE16(src[4]));
11870  Sint32 last_sample5 = (Sint32) ((Sint16) SDL_SwapBE16(src[5]));
11871  while (dst < target) {
11872  const Sint32 sample0 = (Sint32) ((Sint16) SDL_SwapBE16(src[0]));
11873  const Sint32 sample1 = (Sint32) ((Sint16) SDL_SwapBE16(src[1]));
11874  const Sint32 sample2 = (Sint32) ((Sint16) SDL_SwapBE16(src[2]));
11875  const Sint32 sample3 = (Sint32) ((Sint16) SDL_SwapBE16(src[3]));
11876  const Sint32 sample4 = (Sint32) ((Sint16) SDL_SwapBE16(src[4]));
11877  const Sint32 sample5 = (Sint32) ((Sint16) SDL_SwapBE16(src[5]));
11878  src += 12;
11879  dst[0] = (Sint16) ((sample0 + last_sample0) >> 1);
11880  dst[1] = (Sint16) ((sample1 + last_sample1) >> 1);
11881  dst[2] = (Sint16) ((sample2 + last_sample2) >> 1);
11882  dst[3] = (Sint16) ((sample3 + last_sample3) >> 1);
11883  dst[4] = (Sint16) ((sample4 + last_sample4) >> 1);
11884  dst[5] = (Sint16) ((sample5 + last_sample5) >> 1);
11885  last_sample0 = sample0;
11886  last_sample1 = sample1;
11887  last_sample2 = sample2;
11888  last_sample3 = sample3;
11889  last_sample4 = sample4;
11890  last_sample5 = sample5;
11891  dst += 6;
11892  }
11893 
11894  cvt->len_cvt = dstsize;
11895  if (cvt->filters[++cvt->filter_index]) {
11896  cvt->filters[cvt->filter_index] (cvt, format);
11897  }
11898 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_SwapBE16
#define SDL_SwapBE16(X)
Definition: SDL_endian.h:215
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
src
GLenum src
Definition: SDL_opengl_glext.h:1737
Sint16
int16_t Sint16
A signed 16-bit integer type.
Definition: SDL_stdinc.h:143
static void SDL_Downsample_S16MSB_6c_x4 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 11965 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_SwapBE16, and SDLCALL.

11966 {
11967 #if DEBUG_CONVERT
11968  fprintf(stderr, "Downsample (x4) AUDIO_S16MSB, 6 channels.\n");
11969 #endif
11970 
11971  const int dstsize = cvt->len_cvt / 4;
11972  Sint16 *dst = (Sint16 *) cvt->buf;
11973  const Sint16 *src = (Sint16 *) cvt->buf;
11974  const Sint16 *target = (const Sint16 *) (cvt->buf + dstsize);
11975  Sint32 last_sample0 = (Sint32) ((Sint16) SDL_SwapBE16(src[0]));
11976  Sint32 last_sample1 = (Sint32) ((Sint16) SDL_SwapBE16(src[1]));
11977  Sint32 last_sample2 = (Sint32) ((Sint16) SDL_SwapBE16(src[2]));
11978  Sint32 last_sample3 = (Sint32) ((Sint16) SDL_SwapBE16(src[3]));
11979  Sint32 last_sample4 = (Sint32) ((Sint16) SDL_SwapBE16(src[4]));
11980  Sint32 last_sample5 = (Sint32) ((Sint16) SDL_SwapBE16(src[5]));
11981  while (dst < target) {
11982  const Sint32 sample0 = (Sint32) ((Sint16) SDL_SwapBE16(src[0]));
11983  const Sint32 sample1 = (Sint32) ((Sint16) SDL_SwapBE16(src[1]));
11984  const Sint32 sample2 = (Sint32) ((Sint16) SDL_SwapBE16(src[2]));
11985  const Sint32 sample3 = (Sint32) ((Sint16) SDL_SwapBE16(src[3]));
11986  const Sint32 sample4 = (Sint32) ((Sint16) SDL_SwapBE16(src[4]));
11987  const Sint32 sample5 = (Sint32) ((Sint16) SDL_SwapBE16(src[5]));
11988  src += 24;
11989  dst[0] = (Sint16) ((sample0 + last_sample0) >> 1);
11990  dst[1] = (Sint16) ((sample1 + last_sample1) >> 1);
11991  dst[2] = (Sint16) ((sample2 + last_sample2) >> 1);
11992  dst[3] = (Sint16) ((sample3 + last_sample3) >> 1);
11993  dst[4] = (Sint16) ((sample4 + last_sample4) >> 1);
11994  dst[5] = (Sint16) ((sample5 + last_sample5) >> 1);
11995  last_sample0 = sample0;
11996  last_sample1 = sample1;
11997  last_sample2 = sample2;
11998  last_sample3 = sample3;
11999  last_sample4 = sample4;
12000  last_sample5 = sample5;
12001  dst += 6;
12002  }
12003 
12004  cvt->len_cvt = dstsize;
12005  if (cvt->filters[++cvt->filter_index]) {
12006  cvt->filters[cvt->filter_index] (cvt, format);
12007  }
12008 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_SwapBE16
#define SDL_SwapBE16(X)
Definition: SDL_endian.h:215
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
src
GLenum src
Definition: SDL_opengl_glext.h:1737
Sint16
int16_t Sint16
A signed 16-bit integer type.
Definition: SDL_stdinc.h:143
static void SDL_Downsample_S16MSB_8c ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 5109 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_AudioCVT::rate_incr, SDL_SwapBE16, and SDLCALL.

5110 {
5111 #if DEBUG_CONVERT
5112  fprintf(stderr, "Downsample arbitrary (x%f) AUDIO_S16MSB, 8 channels.\n", cvt->rate_incr);
5113 #endif
5114 
5115  const int srcsize = cvt->len_cvt - 256;
5116  const int dstsize = (int) (((double)(cvt->len_cvt/16)) * cvt->rate_incr) * 16;
5117  register int eps = 0;
5118  Sint16 *dst = (Sint16 *) cvt->buf;
5119  const Sint16 *src = (Sint16 *) cvt->buf;
5120  const Sint16 *target = (const Sint16 *) (cvt->buf + dstsize);
5121  Sint16 sample0 = ((Sint16) SDL_SwapBE16(src[0]));
5122  Sint16 sample1 = ((Sint16) SDL_SwapBE16(src[1]));
5123  Sint16 sample2 = ((Sint16) SDL_SwapBE16(src[2]));
5124  Sint16 sample3 = ((Sint16) SDL_SwapBE16(src[3]));
5125  Sint16 sample4 = ((Sint16) SDL_SwapBE16(src[4]));
5126  Sint16 sample5 = ((Sint16) SDL_SwapBE16(src[5]));
5127  Sint16 sample6 = ((Sint16) SDL_SwapBE16(src[6]));
5128  Sint16 sample7 = ((Sint16) SDL_SwapBE16(src[7]));
5129  Sint16 last_sample0 = sample0;
5130  Sint16 last_sample1 = sample1;
5131  Sint16 last_sample2 = sample2;
5132  Sint16 last_sample3 = sample3;
5133  Sint16 last_sample4 = sample4;
5134  Sint16 last_sample5 = sample5;
5135  Sint16 last_sample6 = sample6;
5136  Sint16 last_sample7 = sample7;
5137  while (dst < target) {
5138  src += 8;
5139  eps += dstsize;
5140  if ((eps << 1) >= srcsize) {
5141  dst[0] = ((Sint16) SDL_SwapBE16(sample0));
5142  dst[1] = ((Sint16) SDL_SwapBE16(sample1));
5143  dst[2] = ((Sint16) SDL_SwapBE16(sample2));
5144  dst[3] = ((Sint16) SDL_SwapBE16(sample3));
5145  dst[4] = ((Sint16) SDL_SwapBE16(sample4));
5146  dst[5] = ((Sint16) SDL_SwapBE16(sample5));
5147  dst[6] = ((Sint16) SDL_SwapBE16(sample6));
5148  dst[7] = ((Sint16) SDL_SwapBE16(sample7));
5149  dst += 8;
5150  sample0 = (Sint16) ((((Sint32) ((Sint16) SDL_SwapBE16(src[0]))) + ((Sint32) last_sample0)) >> 1);
5151  sample1 = (Sint16) ((((Sint32) ((Sint16) SDL_SwapBE16(src[1]))) + ((Sint32) last_sample1)) >> 1);
5152  sample2 = (Sint16) ((((Sint32) ((Sint16) SDL_SwapBE16(src[2]))) + ((Sint32) last_sample2)) >> 1);
5153  sample3 = (Sint16) ((((Sint32) ((Sint16) SDL_SwapBE16(src[3]))) + ((Sint32) last_sample3)) >> 1);
5154  sample4 = (Sint16) ((((Sint32) ((Sint16) SDL_SwapBE16(src[4]))) + ((Sint32) last_sample4)) >> 1);
5155  sample5 = (Sint16) ((((Sint32) ((Sint16) SDL_SwapBE16(src[5]))) + ((Sint32) last_sample5)) >> 1);
5156  sample6 = (Sint16) ((((Sint32) ((Sint16) SDL_SwapBE16(src[6]))) + ((Sint32) last_sample6)) >> 1);
5157  sample7 = (Sint16) ((((Sint32) ((Sint16) SDL_SwapBE16(src[7]))) + ((Sint32) last_sample7)) >> 1);
5158  last_sample0 = sample0;
5159  last_sample1 = sample1;
5160  last_sample2 = sample2;
5161  last_sample3 = sample3;
5162  last_sample4 = sample4;
5163  last_sample5 = sample5;
5164  last_sample6 = sample6;
5165  last_sample7 = sample7;
5166  eps -= srcsize;
5167  }
5168  }
5169  cvt->len_cvt = dstsize;
5170  if (cvt->filters[++cvt->filter_index]) {
5171  cvt->filters[cvt->filter_index] (cvt, format);
5172  }
5173 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_SwapBE16
#define SDL_SwapBE16(X)
Definition: SDL_endian.h:215
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
SDL_AudioCVT::rate_incr
double rate_incr
Definition: SDL_audio.h:205
src
GLenum src
Definition: SDL_opengl_glext.h:1737
Sint16
int16_t Sint16
A signed 16-bit integer type.
Definition: SDL_stdinc.h:143
static void SDL_Downsample_S16MSB_8c_x2 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 12073 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_SwapBE16, and SDLCALL.

12074 {
12075 #if DEBUG_CONVERT
12076  fprintf(stderr, "Downsample (x2) AUDIO_S16MSB, 8 channels.\n");
12077 #endif
12078 
12079  const int dstsize = cvt->len_cvt / 2;
12080  Sint16 *dst = (Sint16 *) cvt->buf;
12081  const Sint16 *src = (Sint16 *) cvt->buf;
12082  const Sint16 *target = (const Sint16 *) (cvt->buf + dstsize);
12083  Sint32 last_sample0 = (Sint32) ((Sint16) SDL_SwapBE16(src[0]));
12084  Sint32 last_sample1 = (Sint32) ((Sint16) SDL_SwapBE16(src[1]));
12085  Sint32 last_sample2 = (Sint32) ((Sint16) SDL_SwapBE16(src[2]));
12086  Sint32 last_sample3 = (Sint32) ((Sint16) SDL_SwapBE16(src[3]));
12087  Sint32 last_sample4 = (Sint32) ((Sint16) SDL_SwapBE16(src[4]));
12088  Sint32 last_sample5 = (Sint32) ((Sint16) SDL_SwapBE16(src[5]));
12089  Sint32 last_sample6 = (Sint32) ((Sint16) SDL_SwapBE16(src[6]));
12090  Sint32 last_sample7 = (Sint32) ((Sint16) SDL_SwapBE16(src[7]));
12091  while (dst < target) {
12092  const Sint32 sample0 = (Sint32) ((Sint16) SDL_SwapBE16(src[0]));
12093  const Sint32 sample1 = (Sint32) ((Sint16) SDL_SwapBE16(src[1]));
12094  const Sint32 sample2 = (Sint32) ((Sint16) SDL_SwapBE16(src[2]));
12095  const Sint32 sample3 = (Sint32) ((Sint16) SDL_SwapBE16(src[3]));
12096  const Sint32 sample4 = (Sint32) ((Sint16) SDL_SwapBE16(src[4]));
12097  const Sint32 sample5 = (Sint32) ((Sint16) SDL_SwapBE16(src[5]));
12098  const Sint32 sample6 = (Sint32) ((Sint16) SDL_SwapBE16(src[6]));
12099  const Sint32 sample7 = (Sint32) ((Sint16) SDL_SwapBE16(src[7]));
12100  src += 16;
12101  dst[0] = (Sint16) ((sample0 + last_sample0) >> 1);
12102  dst[1] = (Sint16) ((sample1 + last_sample1) >> 1);
12103  dst[2] = (Sint16) ((sample2 + last_sample2) >> 1);
12104  dst[3] = (Sint16) ((sample3 + last_sample3) >> 1);
12105  dst[4] = (Sint16) ((sample4 + last_sample4) >> 1);
12106  dst[5] = (Sint16) ((sample5 + last_sample5) >> 1);
12107  dst[6] = (Sint16) ((sample6 + last_sample6) >> 1);
12108  dst[7] = (Sint16) ((sample7 + last_sample7) >> 1);
12109  last_sample0 = sample0;
12110  last_sample1 = sample1;
12111  last_sample2 = sample2;
12112  last_sample3 = sample3;
12113  last_sample4 = sample4;
12114  last_sample5 = sample5;
12115  last_sample6 = sample6;
12116  last_sample7 = sample7;
12117  dst += 8;
12118  }
12119 
12120  cvt->len_cvt = dstsize;
12121  if (cvt->filters[++cvt->filter_index]) {
12122  cvt->filters[cvt->filter_index] (cvt, format);
12123  }
12124 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_SwapBE16
#define SDL_SwapBE16(X)
Definition: SDL_endian.h:215
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
src
GLenum src
Definition: SDL_opengl_glext.h:1737
Sint16
int16_t Sint16
A signed 16-bit integer type.
Definition: SDL_stdinc.h:143
static void SDL_Downsample_S16MSB_8c_x4 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 12205 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_SwapBE16, and SDLCALL.

12206 {
12207 #if DEBUG_CONVERT
12208  fprintf(stderr, "Downsample (x4) AUDIO_S16MSB, 8 channels.\n");
12209 #endif
12210 
12211  const int dstsize = cvt->len_cvt / 4;
12212  Sint16 *dst = (Sint16 *) cvt->buf;
12213  const Sint16 *src = (Sint16 *) cvt->buf;
12214  const Sint16 *target = (const Sint16 *) (cvt->buf + dstsize);
12215  Sint32 last_sample0 = (Sint32) ((Sint16) SDL_SwapBE16(src[0]));
12216  Sint32 last_sample1 = (Sint32) ((Sint16) SDL_SwapBE16(src[1]));
12217  Sint32 last_sample2 = (Sint32) ((Sint16) SDL_SwapBE16(src[2]));
12218  Sint32 last_sample3 = (Sint32) ((Sint16) SDL_SwapBE16(src[3]));
12219  Sint32 last_sample4 = (Sint32) ((Sint16) SDL_SwapBE16(src[4]));
12220  Sint32 last_sample5 = (Sint32) ((Sint16) SDL_SwapBE16(src[5]));
12221  Sint32 last_sample6 = (Sint32) ((Sint16) SDL_SwapBE16(src[6]));
12222  Sint32 last_sample7 = (Sint32) ((Sint16) SDL_SwapBE16(src[7]));
12223  while (dst < target) {
12224  const Sint32 sample0 = (Sint32) ((Sint16) SDL_SwapBE16(src[0]));
12225  const Sint32 sample1 = (Sint32) ((Sint16) SDL_SwapBE16(src[1]));
12226  const Sint32 sample2 = (Sint32) ((Sint16) SDL_SwapBE16(src[2]));
12227  const Sint32 sample3 = (Sint32) ((Sint16) SDL_SwapBE16(src[3]));
12228  const Sint32 sample4 = (Sint32) ((Sint16) SDL_SwapBE16(src[4]));
12229  const Sint32 sample5 = (Sint32) ((Sint16) SDL_SwapBE16(src[5]));
12230  const Sint32 sample6 = (Sint32) ((Sint16) SDL_SwapBE16(src[6]));
12231  const Sint32 sample7 = (Sint32) ((Sint16) SDL_SwapBE16(src[7]));
12232  src += 32;
12233  dst[0] = (Sint16) ((sample0 + last_sample0) >> 1);
12234  dst[1] = (Sint16) ((sample1 + last_sample1) >> 1);
12235  dst[2] = (Sint16) ((sample2 + last_sample2) >> 1);
12236  dst[3] = (Sint16) ((sample3 + last_sample3) >> 1);
12237  dst[4] = (Sint16) ((sample4 + last_sample4) >> 1);
12238  dst[5] = (Sint16) ((sample5 + last_sample5) >> 1);
12239  dst[6] = (Sint16) ((sample6 + last_sample6) >> 1);
12240  dst[7] = (Sint16) ((sample7 + last_sample7) >> 1);
12241  last_sample0 = sample0;
12242  last_sample1 = sample1;
12243  last_sample2 = sample2;
12244  last_sample3 = sample3;
12245  last_sample4 = sample4;
12246  last_sample5 = sample5;
12247  last_sample6 = sample6;
12248  last_sample7 = sample7;
12249  dst += 8;
12250  }
12251 
12252  cvt->len_cvt = dstsize;
12253  if (cvt->filters[++cvt->filter_index]) {
12254  cvt->filters[cvt->filter_index] (cvt, format);
12255  }
12256 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_SwapBE16
#define SDL_SwapBE16(X)
Definition: SDL_endian.h:215
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
src
GLenum src
Definition: SDL_opengl_glext.h:1737
Sint16
int16_t Sint16
A signed 16-bit integer type.
Definition: SDL_stdinc.h:143
static void SDL_Downsample_S32LSB_1c ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 5208 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_AudioCVT::rate_incr, SDL_SwapLE32, and SDLCALL.

5209 {
5210 #if DEBUG_CONVERT
5211  fprintf(stderr, "Downsample arbitrary (x%f) AUDIO_S32LSB, 1 channels.\n", cvt->rate_incr);
5212 #endif
5213 
5214  const int srcsize = cvt->len_cvt - 64;
5215  const int dstsize = (int) (((double)(cvt->len_cvt/4)) * cvt->rate_incr) * 4;
5216  register int eps = 0;
5217  Sint32 *dst = (Sint32 *) cvt->buf;
5218  const Sint32 *src = (Sint32 *) cvt->buf;
5219  const Sint32 *target = (const Sint32 *) (cvt->buf + dstsize);
5220  Sint32 sample0 = ((Sint32) SDL_SwapLE32(src[0]));
5221  Sint32 last_sample0 = sample0;
5222  while (dst < target) {
5223  src++;
5224  eps += dstsize;
5225  if ((eps << 1) >= srcsize) {
5226  dst[0] = ((Sint32) SDL_SwapLE32(sample0));
5227  dst++;
5228  sample0 = (Sint32) ((((Sint64) ((Sint32) SDL_SwapLE32(src[0]))) + ((Sint64) last_sample0)) >> 1);
5229  last_sample0 = sample0;
5230  eps -= srcsize;
5231  }
5232  }
5233  cvt->len_cvt = dstsize;
5234  if (cvt->filters[++cvt->filter_index]) {
5235  cvt->filters[cvt->filter_index] (cvt, format);
5236  }
5237 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
SDL_SwapLE32
#define SDL_SwapLE32(X)
Definition: SDL_endian.h:212
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
SDL_AudioCVT::rate_incr
double rate_incr
Definition: SDL_audio.h:205
Sint64
int64_t Sint64
A signed 64-bit integer type.
Definition: SDL_stdinc.h:160
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Downsample_S32LSB_1c_x2 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 12286 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_SwapLE32, and SDLCALL.

12287 {
12288 #if DEBUG_CONVERT
12289  fprintf(stderr, "Downsample (x2) AUDIO_S32LSB, 1 channels.\n");
12290 #endif
12291 
12292  const int dstsize = cvt->len_cvt / 2;
12293  Sint32 *dst = (Sint32 *) cvt->buf;
12294  const Sint32 *src = (Sint32 *) cvt->buf;
12295  const Sint32 *target = (const Sint32 *) (cvt->buf + dstsize);
12296  Sint64 last_sample0 = (Sint64) ((Sint32) SDL_SwapLE32(src[0]));
12297  while (dst < target) {
12298  const Sint64 sample0 = (Sint64) ((Sint32) SDL_SwapLE32(src[0]));
12299  src += 2;
12300  dst[0] = (Sint32) ((sample0 + last_sample0) >> 1);
12301  last_sample0 = sample0;
12302  dst++;
12303  }
12304 
12305  cvt->len_cvt = dstsize;
12306  if (cvt->filters[++cvt->filter_index]) {
12307  cvt->filters[cvt->filter_index] (cvt, format);
12308  }
12309 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
SDL_SwapLE32
#define SDL_SwapLE32(X)
Definition: SDL_endian.h:212
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
Sint64
int64_t Sint64
A signed 64-bit integer type.
Definition: SDL_stdinc.h:160
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Downsample_S32LSB_1c_x4 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 12341 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_SwapLE32, and SDLCALL.

12342 {
12343 #if DEBUG_CONVERT
12344  fprintf(stderr, "Downsample (x4) AUDIO_S32LSB, 1 channels.\n");
12345 #endif
12346 
12347  const int dstsize = cvt->len_cvt / 4;
12348  Sint32 *dst = (Sint32 *) cvt->buf;
12349  const Sint32 *src = (Sint32 *) cvt->buf;
12350  const Sint32 *target = (const Sint32 *) (cvt->buf + dstsize);
12351  Sint64 last_sample0 = (Sint64) ((Sint32) SDL_SwapLE32(src[0]));
12352  while (dst < target) {
12353  const Sint64 sample0 = (Sint64) ((Sint32) SDL_SwapLE32(src[0]));
12354  src += 4;
12355  dst[0] = (Sint32) ((sample0 + last_sample0) >> 1);
12356  last_sample0 = sample0;
12357  dst++;
12358  }
12359 
12360  cvt->len_cvt = dstsize;
12361  if (cvt->filters[++cvt->filter_index]) {
12362  cvt->filters[cvt->filter_index] (cvt, format);
12363  }
12364 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
SDL_SwapLE32
#define SDL_SwapLE32(X)
Definition: SDL_endian.h:212
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
Sint64
int64_t Sint64
A signed 64-bit integer type.
Definition: SDL_stdinc.h:160
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Downsample_S32LSB_2c ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 5277 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_AudioCVT::rate_incr, SDL_SwapLE32, and SDLCALL.

5278 {
5279 #if DEBUG_CONVERT
5280  fprintf(stderr, "Downsample arbitrary (x%f) AUDIO_S32LSB, 2 channels.\n", cvt->rate_incr);
5281 #endif
5282 
5283  const int srcsize = cvt->len_cvt - 128;
5284  const int dstsize = (int) (((double)(cvt->len_cvt/8)) * cvt->rate_incr) * 8;
5285  register int eps = 0;
5286  Sint32 *dst = (Sint32 *) cvt->buf;
5287  const Sint32 *src = (Sint32 *) cvt->buf;
5288  const Sint32 *target = (const Sint32 *) (cvt->buf + dstsize);
5289  Sint32 sample0 = ((Sint32) SDL_SwapLE32(src[0]));
5290  Sint32 sample1 = ((Sint32) SDL_SwapLE32(src[1]));
5291  Sint32 last_sample0 = sample0;
5292  Sint32 last_sample1 = sample1;
5293  while (dst < target) {
5294  src += 2;
5295  eps += dstsize;
5296  if ((eps << 1) >= srcsize) {
5297  dst[0] = ((Sint32) SDL_SwapLE32(sample0));
5298  dst[1] = ((Sint32) SDL_SwapLE32(sample1));
5299  dst += 2;
5300  sample0 = (Sint32) ((((Sint64) ((Sint32) SDL_SwapLE32(src[0]))) + ((Sint64) last_sample0)) >> 1);
5301  sample1 = (Sint32) ((((Sint64) ((Sint32) SDL_SwapLE32(src[1]))) + ((Sint64) last_sample1)) >> 1);
5302  last_sample0 = sample0;
5303  last_sample1 = sample1;
5304  eps -= srcsize;
5305  }
5306  }
5307  cvt->len_cvt = dstsize;
5308  if (cvt->filters[++cvt->filter_index]) {
5309  cvt->filters[cvt->filter_index] (cvt, format);
5310  }
5311 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
SDL_SwapLE32
#define SDL_SwapLE32(X)
Definition: SDL_endian.h:212
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
SDL_AudioCVT::rate_incr
double rate_incr
Definition: SDL_audio.h:205
Sint64
int64_t Sint64
A signed 64-bit integer type.
Definition: SDL_stdinc.h:160
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Downsample_S32LSB_2c_x2 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 12399 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_SwapLE32, and SDLCALL.

12400 {
12401 #if DEBUG_CONVERT
12402  fprintf(stderr, "Downsample (x2) AUDIO_S32LSB, 2 channels.\n");
12403 #endif
12404 
12405  const int dstsize = cvt->len_cvt / 2;
12406  Sint32 *dst = (Sint32 *) cvt->buf;
12407  const Sint32 *src = (Sint32 *) cvt->buf;
12408  const Sint32 *target = (const Sint32 *) (cvt->buf + dstsize);
12409  Sint64 last_sample0 = (Sint64) ((Sint32) SDL_SwapLE32(src[0]));
12410  Sint64 last_sample1 = (Sint64) ((Sint32) SDL_SwapLE32(src[1]));
12411  while (dst < target) {
12412  const Sint64 sample0 = (Sint64) ((Sint32) SDL_SwapLE32(src[0]));
12413  const Sint64 sample1 = (Sint64) ((Sint32) SDL_SwapLE32(src[1]));
12414  src += 4;
12415  dst[0] = (Sint32) ((sample0 + last_sample0) >> 1);
12416  dst[1] = (Sint32) ((sample1 + last_sample1) >> 1);
12417  last_sample0 = sample0;
12418  last_sample1 = sample1;
12419  dst += 2;
12420  }
12421 
12422  cvt->len_cvt = dstsize;
12423  if (cvt->filters[++cvt->filter_index]) {
12424  cvt->filters[cvt->filter_index] (cvt, format);
12425  }
12426 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
SDL_SwapLE32
#define SDL_SwapLE32(X)
Definition: SDL_endian.h:212
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
Sint64
int64_t Sint64
A signed 64-bit integer type.
Definition: SDL_stdinc.h:160
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Downsample_S32LSB_2c_x4 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 12465 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_SwapLE32, and SDLCALL.

12466 {
12467 #if DEBUG_CONVERT
12468  fprintf(stderr, "Downsample (x4) AUDIO_S32LSB, 2 channels.\n");
12469 #endif
12470 
12471  const int dstsize = cvt->len_cvt / 4;
12472  Sint32 *dst = (Sint32 *) cvt->buf;
12473  const Sint32 *src = (Sint32 *) cvt->buf;
12474  const Sint32 *target = (const Sint32 *) (cvt->buf + dstsize);
12475  Sint64 last_sample0 = (Sint64) ((Sint32) SDL_SwapLE32(src[0]));
12476  Sint64 last_sample1 = (Sint64) ((Sint32) SDL_SwapLE32(src[1]));
12477  while (dst < target) {
12478  const Sint64 sample0 = (Sint64) ((Sint32) SDL_SwapLE32(src[0]));
12479  const Sint64 sample1 = (Sint64) ((Sint32) SDL_SwapLE32(src[1]));
12480  src += 8;
12481  dst[0] = (Sint32) ((sample0 + last_sample0) >> 1);
12482  dst[1] = (Sint32) ((sample1 + last_sample1) >> 1);
12483  last_sample0 = sample0;
12484  last_sample1 = sample1;
12485  dst += 2;
12486  }
12487 
12488  cvt->len_cvt = dstsize;
12489  if (cvt->filters[++cvt->filter_index]) {
12490  cvt->filters[cvt->filter_index] (cvt, format);
12491  }
12492 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
SDL_SwapLE32
#define SDL_SwapLE32(X)
Definition: SDL_endian.h:212
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
Sint64
int64_t Sint64
A signed 64-bit integer type.
Definition: SDL_stdinc.h:160
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Downsample_S32LSB_4c ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 5361 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_AudioCVT::rate_incr, SDL_SwapLE32, and SDLCALL.

5362 {
5363 #if DEBUG_CONVERT
5364  fprintf(stderr, "Downsample arbitrary (x%f) AUDIO_S32LSB, 4 channels.\n", cvt->rate_incr);
5365 #endif
5366 
5367  const int srcsize = cvt->len_cvt - 256;
5368  const int dstsize = (int) (((double)(cvt->len_cvt/16)) * cvt->rate_incr) * 16;
5369  register int eps = 0;
5370  Sint32 *dst = (Sint32 *) cvt->buf;
5371  const Sint32 *src = (Sint32 *) cvt->buf;
5372  const Sint32 *target = (const Sint32 *) (cvt->buf + dstsize);
5373  Sint32 sample0 = ((Sint32) SDL_SwapLE32(src[0]));
5374  Sint32 sample1 = ((Sint32) SDL_SwapLE32(src[1]));
5375  Sint32 sample2 = ((Sint32) SDL_SwapLE32(src[2]));
5376  Sint32 sample3 = ((Sint32) SDL_SwapLE32(src[3]));
5377  Sint32 last_sample0 = sample0;
5378  Sint32 last_sample1 = sample1;
5379  Sint32 last_sample2 = sample2;
5380  Sint32 last_sample3 = sample3;
5381  while (dst < target) {
5382  src += 4;
5383  eps += dstsize;
5384  if ((eps << 1) >= srcsize) {
5385  dst[0] = ((Sint32) SDL_SwapLE32(sample0));
5386  dst[1] = ((Sint32) SDL_SwapLE32(sample1));
5387  dst[2] = ((Sint32) SDL_SwapLE32(sample2));
5388  dst[3] = ((Sint32) SDL_SwapLE32(sample3));
5389  dst += 4;
5390  sample0 = (Sint32) ((((Sint64) ((Sint32) SDL_SwapLE32(src[0]))) + ((Sint64) last_sample0)) >> 1);
5391  sample1 = (Sint32) ((((Sint64) ((Sint32) SDL_SwapLE32(src[1]))) + ((Sint64) last_sample1)) >> 1);
5392  sample2 = (Sint32) ((((Sint64) ((Sint32) SDL_SwapLE32(src[2]))) + ((Sint64) last_sample2)) >> 1);
5393  sample3 = (Sint32) ((((Sint64) ((Sint32) SDL_SwapLE32(src[3]))) + ((Sint64) last_sample3)) >> 1);
5394  last_sample0 = sample0;
5395  last_sample1 = sample1;
5396  last_sample2 = sample2;
5397  last_sample3 = sample3;
5398  eps -= srcsize;
5399  }
5400  }
5401  cvt->len_cvt = dstsize;
5402  if (cvt->filters[++cvt->filter_index]) {
5403  cvt->filters[cvt->filter_index] (cvt, format);
5404  }
5405 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
SDL_SwapLE32
#define SDL_SwapLE32(X)
Definition: SDL_endian.h:212
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
SDL_AudioCVT::rate_incr
double rate_incr
Definition: SDL_audio.h:205
Sint64
int64_t Sint64
A signed 64-bit integer type.
Definition: SDL_stdinc.h:160
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Downsample_S32LSB_4c_x2 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 12537 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_SwapLE32, and SDLCALL.

12538 {
12539 #if DEBUG_CONVERT
12540  fprintf(stderr, "Downsample (x2) AUDIO_S32LSB, 4 channels.\n");
12541 #endif
12542 
12543  const int dstsize = cvt->len_cvt / 2;
12544  Sint32 *dst = (Sint32 *) cvt->buf;
12545  const Sint32 *src = (Sint32 *) cvt->buf;
12546  const Sint32 *target = (const Sint32 *) (cvt->buf + dstsize);
12547  Sint64 last_sample0 = (Sint64) ((Sint32) SDL_SwapLE32(src[0]));
12548  Sint64 last_sample1 = (Sint64) ((Sint32) SDL_SwapLE32(src[1]));
12549  Sint64 last_sample2 = (Sint64) ((Sint32) SDL_SwapLE32(src[2]));
12550  Sint64 last_sample3 = (Sint64) ((Sint32) SDL_SwapLE32(src[3]));
12551  while (dst < target) {
12552  const Sint64 sample0 = (Sint64) ((Sint32) SDL_SwapLE32(src[0]));
12553  const Sint64 sample1 = (Sint64) ((Sint32) SDL_SwapLE32(src[1]));
12554  const Sint64 sample2 = (Sint64) ((Sint32) SDL_SwapLE32(src[2]));
12555  const Sint64 sample3 = (Sint64) ((Sint32) SDL_SwapLE32(src[3]));
12556  src += 8;
12557  dst[0] = (Sint32) ((sample0 + last_sample0) >> 1);
12558  dst[1] = (Sint32) ((sample1 + last_sample1) >> 1);
12559  dst[2] = (Sint32) ((sample2 + last_sample2) >> 1);
12560  dst[3] = (Sint32) ((sample3 + last_sample3) >> 1);
12561  last_sample0 = sample0;
12562  last_sample1 = sample1;
12563  last_sample2 = sample2;
12564  last_sample3 = sample3;
12565  dst += 4;
12566  }
12567 
12568  cvt->len_cvt = dstsize;
12569  if (cvt->filters[++cvt->filter_index]) {
12570  cvt->filters[cvt->filter_index] (cvt, format);
12571  }
12572 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
SDL_SwapLE32
#define SDL_SwapLE32(X)
Definition: SDL_endian.h:212
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
Sint64
int64_t Sint64
A signed 64-bit integer type.
Definition: SDL_stdinc.h:160
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Downsample_S32LSB_4c_x4 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 12625 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_SwapLE32, and SDLCALL.

12626 {
12627 #if DEBUG_CONVERT
12628  fprintf(stderr, "Downsample (x4) AUDIO_S32LSB, 4 channels.\n");
12629 #endif
12630 
12631  const int dstsize = cvt->len_cvt / 4;
12632  Sint32 *dst = (Sint32 *) cvt->buf;
12633  const Sint32 *src = (Sint32 *) cvt->buf;
12634  const Sint32 *target = (const Sint32 *) (cvt->buf + dstsize);
12635  Sint64 last_sample0 = (Sint64) ((Sint32) SDL_SwapLE32(src[0]));
12636  Sint64 last_sample1 = (Sint64) ((Sint32) SDL_SwapLE32(src[1]));
12637  Sint64 last_sample2 = (Sint64) ((Sint32) SDL_SwapLE32(src[2]));
12638  Sint64 last_sample3 = (Sint64) ((Sint32) SDL_SwapLE32(src[3]));
12639  while (dst < target) {
12640  const Sint64 sample0 = (Sint64) ((Sint32) SDL_SwapLE32(src[0]));
12641  const Sint64 sample1 = (Sint64) ((Sint32) SDL_SwapLE32(src[1]));
12642  const Sint64 sample2 = (Sint64) ((Sint32) SDL_SwapLE32(src[2]));
12643  const Sint64 sample3 = (Sint64) ((Sint32) SDL_SwapLE32(src[3]));
12644  src += 16;
12645  dst[0] = (Sint32) ((sample0 + last_sample0) >> 1);
12646  dst[1] = (Sint32) ((sample1 + last_sample1) >> 1);
12647  dst[2] = (Sint32) ((sample2 + last_sample2) >> 1);
12648  dst[3] = (Sint32) ((sample3 + last_sample3) >> 1);
12649  last_sample0 = sample0;
12650  last_sample1 = sample1;
12651  last_sample2 = sample2;
12652  last_sample3 = sample3;
12653  dst += 4;
12654  }
12655 
12656  cvt->len_cvt = dstsize;
12657  if (cvt->filters[++cvt->filter_index]) {
12658  cvt->filters[cvt->filter_index] (cvt, format);
12659  }
12660 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
SDL_SwapLE32
#define SDL_SwapLE32(X)
Definition: SDL_endian.h:212
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
Sint64
int64_t Sint64
A signed 64-bit integer type.
Definition: SDL_stdinc.h:160
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Downsample_S32LSB_6c ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 5465 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_AudioCVT::rate_incr, SDL_SwapLE32, and SDLCALL.

5466 {
5467 #if DEBUG_CONVERT
5468  fprintf(stderr, "Downsample arbitrary (x%f) AUDIO_S32LSB, 6 channels.\n", cvt->rate_incr);
5469 #endif
5470 
5471  const int srcsize = cvt->len_cvt - 384;
5472  const int dstsize = (int) (((double)(cvt->len_cvt/24)) * cvt->rate_incr) * 24;
5473  register int eps = 0;
5474  Sint32 *dst = (Sint32 *) cvt->buf;
5475  const Sint32 *src = (Sint32 *) cvt->buf;
5476  const Sint32 *target = (const Sint32 *) (cvt->buf + dstsize);
5477  Sint32 sample0 = ((Sint32) SDL_SwapLE32(src[0]));
5478  Sint32 sample1 = ((Sint32) SDL_SwapLE32(src[1]));
5479  Sint32 sample2 = ((Sint32) SDL_SwapLE32(src[2]));
5480  Sint32 sample3 = ((Sint32) SDL_SwapLE32(src[3]));
5481  Sint32 sample4 = ((Sint32) SDL_SwapLE32(src[4]));
5482  Sint32 sample5 = ((Sint32) SDL_SwapLE32(src[5]));
5483  Sint32 last_sample0 = sample0;
5484  Sint32 last_sample1 = sample1;
5485  Sint32 last_sample2 = sample2;
5486  Sint32 last_sample3 = sample3;
5487  Sint32 last_sample4 = sample4;
5488  Sint32 last_sample5 = sample5;
5489  while (dst < target) {
5490  src += 6;
5491  eps += dstsize;
5492  if ((eps << 1) >= srcsize) {
5493  dst[0] = ((Sint32) SDL_SwapLE32(sample0));
5494  dst[1] = ((Sint32) SDL_SwapLE32(sample1));
5495  dst[2] = ((Sint32) SDL_SwapLE32(sample2));
5496  dst[3] = ((Sint32) SDL_SwapLE32(sample3));
5497  dst[4] = ((Sint32) SDL_SwapLE32(sample4));
5498  dst[5] = ((Sint32) SDL_SwapLE32(sample5));
5499  dst += 6;
5500  sample0 = (Sint32) ((((Sint64) ((Sint32) SDL_SwapLE32(src[0]))) + ((Sint64) last_sample0)) >> 1);
5501  sample1 = (Sint32) ((((Sint64) ((Sint32) SDL_SwapLE32(src[1]))) + ((Sint64) last_sample1)) >> 1);
5502  sample2 = (Sint32) ((((Sint64) ((Sint32) SDL_SwapLE32(src[2]))) + ((Sint64) last_sample2)) >> 1);
5503  sample3 = (Sint32) ((((Sint64) ((Sint32) SDL_SwapLE32(src[3]))) + ((Sint64) last_sample3)) >> 1);
5504  sample4 = (Sint32) ((((Sint64) ((Sint32) SDL_SwapLE32(src[4]))) + ((Sint64) last_sample4)) >> 1);
5505  sample5 = (Sint32) ((((Sint64) ((Sint32) SDL_SwapLE32(src[5]))) + ((Sint64) last_sample5)) >> 1);
5506  last_sample0 = sample0;
5507  last_sample1 = sample1;
5508  last_sample2 = sample2;
5509  last_sample3 = sample3;
5510  last_sample4 = sample4;
5511  last_sample5 = sample5;
5512  eps -= srcsize;
5513  }
5514  }
5515  cvt->len_cvt = dstsize;
5516  if (cvt->filters[++cvt->filter_index]) {
5517  cvt->filters[cvt->filter_index] (cvt, format);
5518  }
5519 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
SDL_SwapLE32
#define SDL_SwapLE32(X)
Definition: SDL_endian.h:212
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
SDL_AudioCVT::rate_incr
double rate_incr
Definition: SDL_audio.h:205
Sint64
int64_t Sint64
A signed 64-bit integer type.
Definition: SDL_stdinc.h:160
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Downsample_S32LSB_6c_x2 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 12715 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_SwapLE32, and SDLCALL.

12716 {
12717 #if DEBUG_CONVERT
12718  fprintf(stderr, "Downsample (x2) AUDIO_S32LSB, 6 channels.\n");
12719 #endif
12720 
12721  const int dstsize = cvt->len_cvt / 2;
12722  Sint32 *dst = (Sint32 *) cvt->buf;
12723  const Sint32 *src = (Sint32 *) cvt->buf;
12724  const Sint32 *target = (const Sint32 *) (cvt->buf + dstsize);
12725  Sint64 last_sample0 = (Sint64) ((Sint32) SDL_SwapLE32(src[0]));
12726  Sint64 last_sample1 = (Sint64) ((Sint32) SDL_SwapLE32(src[1]));
12727  Sint64 last_sample2 = (Sint64) ((Sint32) SDL_SwapLE32(src[2]));
12728  Sint64 last_sample3 = (Sint64) ((Sint32) SDL_SwapLE32(src[3]));
12729  Sint64 last_sample4 = (Sint64) ((Sint32) SDL_SwapLE32(src[4]));
12730  Sint64 last_sample5 = (Sint64) ((Sint32) SDL_SwapLE32(src[5]));
12731  while (dst < target) {
12732  const Sint64 sample0 = (Sint64) ((Sint32) SDL_SwapLE32(src[0]));
12733  const Sint64 sample1 = (Sint64) ((Sint32) SDL_SwapLE32(src[1]));
12734  const Sint64 sample2 = (Sint64) ((Sint32) SDL_SwapLE32(src[2]));
12735  const Sint64 sample3 = (Sint64) ((Sint32) SDL_SwapLE32(src[3]));
12736  const Sint64 sample4 = (Sint64) ((Sint32) SDL_SwapLE32(src[4]));
12737  const Sint64 sample5 = (Sint64) ((Sint32) SDL_SwapLE32(src[5]));
12738  src += 12;
12739  dst[0] = (Sint32) ((sample0 + last_sample0) >> 1);
12740  dst[1] = (Sint32) ((sample1 + last_sample1) >> 1);
12741  dst[2] = (Sint32) ((sample2 + last_sample2) >> 1);
12742  dst[3] = (Sint32) ((sample3 + last_sample3) >> 1);
12743  dst[4] = (Sint32) ((sample4 + last_sample4) >> 1);
12744  dst[5] = (Sint32) ((sample5 + last_sample5) >> 1);
12745  last_sample0 = sample0;
12746  last_sample1 = sample1;
12747  last_sample2 = sample2;
12748  last_sample3 = sample3;
12749  last_sample4 = sample4;
12750  last_sample5 = sample5;
12751  dst += 6;
12752  }
12753 
12754  cvt->len_cvt = dstsize;
12755  if (cvt->filters[++cvt->filter_index]) {
12756  cvt->filters[cvt->filter_index] (cvt, format);
12757  }
12758 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
SDL_SwapLE32
#define SDL_SwapLE32(X)
Definition: SDL_endian.h:212
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
Sint64
int64_t Sint64
A signed 64-bit integer type.
Definition: SDL_stdinc.h:160
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Downsample_S32LSB_6c_x4 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 12825 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_SwapLE32, and SDLCALL.

12826 {
12827 #if DEBUG_CONVERT
12828  fprintf(stderr, "Downsample (x4) AUDIO_S32LSB, 6 channels.\n");
12829 #endif
12830 
12831  const int dstsize = cvt->len_cvt / 4;
12832  Sint32 *dst = (Sint32 *) cvt->buf;
12833  const Sint32 *src = (Sint32 *) cvt->buf;
12834  const Sint32 *target = (const Sint32 *) (cvt->buf + dstsize);
12835  Sint64 last_sample0 = (Sint64) ((Sint32) SDL_SwapLE32(src[0]));
12836  Sint64 last_sample1 = (Sint64) ((Sint32) SDL_SwapLE32(src[1]));
12837  Sint64 last_sample2 = (Sint64) ((Sint32) SDL_SwapLE32(src[2]));
12838  Sint64 last_sample3 = (Sint64) ((Sint32) SDL_SwapLE32(src[3]));
12839  Sint64 last_sample4 = (Sint64) ((Sint32) SDL_SwapLE32(src[4]));
12840  Sint64 last_sample5 = (Sint64) ((Sint32) SDL_SwapLE32(src[5]));
12841  while (dst < target) {
12842  const Sint64 sample0 = (Sint64) ((Sint32) SDL_SwapLE32(src[0]));
12843  const Sint64 sample1 = (Sint64) ((Sint32) SDL_SwapLE32(src[1]));
12844  const Sint64 sample2 = (Sint64) ((Sint32) SDL_SwapLE32(src[2]));
12845  const Sint64 sample3 = (Sint64) ((Sint32) SDL_SwapLE32(src[3]));
12846  const Sint64 sample4 = (Sint64) ((Sint32) SDL_SwapLE32(src[4]));
12847  const Sint64 sample5 = (Sint64) ((Sint32) SDL_SwapLE32(src[5]));
12848  src += 24;
12849  dst[0] = (Sint32) ((sample0 + last_sample0) >> 1);
12850  dst[1] = (Sint32) ((sample1 + last_sample1) >> 1);
12851  dst[2] = (Sint32) ((sample2 + last_sample2) >> 1);
12852  dst[3] = (Sint32) ((sample3 + last_sample3) >> 1);
12853  dst[4] = (Sint32) ((sample4 + last_sample4) >> 1);
12854  dst[5] = (Sint32) ((sample5 + last_sample5) >> 1);
12855  last_sample0 = sample0;
12856  last_sample1 = sample1;
12857  last_sample2 = sample2;
12858  last_sample3 = sample3;
12859  last_sample4 = sample4;
12860  last_sample5 = sample5;
12861  dst += 6;
12862  }
12863 
12864  cvt->len_cvt = dstsize;
12865  if (cvt->filters[++cvt->filter_index]) {
12866  cvt->filters[cvt->filter_index] (cvt, format);
12867  }
12868 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
SDL_SwapLE32
#define SDL_SwapLE32(X)
Definition: SDL_endian.h:212
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
Sint64
int64_t Sint64
A signed 64-bit integer type.
Definition: SDL_stdinc.h:160
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Downsample_S32LSB_8c ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 5589 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_AudioCVT::rate_incr, SDL_SwapLE32, and SDLCALL.

5590 {
5591 #if DEBUG_CONVERT
5592  fprintf(stderr, "Downsample arbitrary (x%f) AUDIO_S32LSB, 8 channels.\n", cvt->rate_incr);
5593 #endif
5594 
5595  const int srcsize = cvt->len_cvt - 512;
5596  const int dstsize = (int) (((double)(cvt->len_cvt/32)) * cvt->rate_incr) * 32;
5597  register int eps = 0;
5598  Sint32 *dst = (Sint32 *) cvt->buf;
5599  const Sint32 *src = (Sint32 *) cvt->buf;
5600  const Sint32 *target = (const Sint32 *) (cvt->buf + dstsize);
5601  Sint32 sample0 = ((Sint32) SDL_SwapLE32(src[0]));
5602  Sint32 sample1 = ((Sint32) SDL_SwapLE32(src[1]));
5603  Sint32 sample2 = ((Sint32) SDL_SwapLE32(src[2]));
5604  Sint32 sample3 = ((Sint32) SDL_SwapLE32(src[3]));
5605  Sint32 sample4 = ((Sint32) SDL_SwapLE32(src[4]));
5606  Sint32 sample5 = ((Sint32) SDL_SwapLE32(src[5]));
5607  Sint32 sample6 = ((Sint32) SDL_SwapLE32(src[6]));
5608  Sint32 sample7 = ((Sint32) SDL_SwapLE32(src[7]));
5609  Sint32 last_sample0 = sample0;
5610  Sint32 last_sample1 = sample1;
5611  Sint32 last_sample2 = sample2;
5612  Sint32 last_sample3 = sample3;
5613  Sint32 last_sample4 = sample4;
5614  Sint32 last_sample5 = sample5;
5615  Sint32 last_sample6 = sample6;
5616  Sint32 last_sample7 = sample7;
5617  while (dst < target) {
5618  src += 8;
5619  eps += dstsize;
5620  if ((eps << 1) >= srcsize) {
5621  dst[0] = ((Sint32) SDL_SwapLE32(sample0));
5622  dst[1] = ((Sint32) SDL_SwapLE32(sample1));
5623  dst[2] = ((Sint32) SDL_SwapLE32(sample2));
5624  dst[3] = ((Sint32) SDL_SwapLE32(sample3));
5625  dst[4] = ((Sint32) SDL_SwapLE32(sample4));
5626  dst[5] = ((Sint32) SDL_SwapLE32(sample5));
5627  dst[6] = ((Sint32) SDL_SwapLE32(sample6));
5628  dst[7] = ((Sint32) SDL_SwapLE32(sample7));
5629  dst += 8;
5630  sample0 = (Sint32) ((((Sint64) ((Sint32) SDL_SwapLE32(src[0]))) + ((Sint64) last_sample0)) >> 1);
5631  sample1 = (Sint32) ((((Sint64) ((Sint32) SDL_SwapLE32(src[1]))) + ((Sint64) last_sample1)) >> 1);
5632  sample2 = (Sint32) ((((Sint64) ((Sint32) SDL_SwapLE32(src[2]))) + ((Sint64) last_sample2)) >> 1);
5633  sample3 = (Sint32) ((((Sint64) ((Sint32) SDL_SwapLE32(src[3]))) + ((Sint64) last_sample3)) >> 1);
5634  sample4 = (Sint32) ((((Sint64) ((Sint32) SDL_SwapLE32(src[4]))) + ((Sint64) last_sample4)) >> 1);
5635  sample5 = (Sint32) ((((Sint64) ((Sint32) SDL_SwapLE32(src[5]))) + ((Sint64) last_sample5)) >> 1);
5636  sample6 = (Sint32) ((((Sint64) ((Sint32) SDL_SwapLE32(src[6]))) + ((Sint64) last_sample6)) >> 1);
5637  sample7 = (Sint32) ((((Sint64) ((Sint32) SDL_SwapLE32(src[7]))) + ((Sint64) last_sample7)) >> 1);
5638  last_sample0 = sample0;
5639  last_sample1 = sample1;
5640  last_sample2 = sample2;
5641  last_sample3 = sample3;
5642  last_sample4 = sample4;
5643  last_sample5 = sample5;
5644  last_sample6 = sample6;
5645  last_sample7 = sample7;
5646  eps -= srcsize;
5647  }
5648  }
5649  cvt->len_cvt = dstsize;
5650  if (cvt->filters[++cvt->filter_index]) {
5651  cvt->filters[cvt->filter_index] (cvt, format);
5652  }
5653 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
SDL_SwapLE32
#define SDL_SwapLE32(X)
Definition: SDL_endian.h:212
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
SDL_AudioCVT::rate_incr
double rate_incr
Definition: SDL_audio.h:205
Sint64
int64_t Sint64
A signed 64-bit integer type.
Definition: SDL_stdinc.h:160
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Downsample_S32LSB_8c_x2 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 12933 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_SwapLE32, and SDLCALL.

12934 {
12935 #if DEBUG_CONVERT
12936  fprintf(stderr, "Downsample (x2) AUDIO_S32LSB, 8 channels.\n");
12937 #endif
12938 
12939  const int dstsize = cvt->len_cvt / 2;
12940  Sint32 *dst = (Sint32 *) cvt->buf;
12941  const Sint32 *src = (Sint32 *) cvt->buf;
12942  const Sint32 *target = (const Sint32 *) (cvt->buf + dstsize);
12943  Sint64 last_sample0 = (Sint64) ((Sint32) SDL_SwapLE32(src[0]));
12944  Sint64 last_sample1 = (Sint64) ((Sint32) SDL_SwapLE32(src[1]));
12945  Sint64 last_sample2 = (Sint64) ((Sint32) SDL_SwapLE32(src[2]));
12946  Sint64 last_sample3 = (Sint64) ((Sint32) SDL_SwapLE32(src[3]));
12947  Sint64 last_sample4 = (Sint64) ((Sint32) SDL_SwapLE32(src[4]));
12948  Sint64 last_sample5 = (Sint64) ((Sint32) SDL_SwapLE32(src[5]));
12949  Sint64 last_sample6 = (Sint64) ((Sint32) SDL_SwapLE32(src[6]));
12950  Sint64 last_sample7 = (Sint64) ((Sint32) SDL_SwapLE32(src[7]));
12951  while (dst < target) {
12952  const Sint64 sample0 = (Sint64) ((Sint32) SDL_SwapLE32(src[0]));
12953  const Sint64 sample1 = (Sint64) ((Sint32) SDL_SwapLE32(src[1]));
12954  const Sint64 sample2 = (Sint64) ((Sint32) SDL_SwapLE32(src[2]));
12955  const Sint64 sample3 = (Sint64) ((Sint32) SDL_SwapLE32(src[3]));
12956  const Sint64 sample4 = (Sint64) ((Sint32) SDL_SwapLE32(src[4]));
12957  const Sint64 sample5 = (Sint64) ((Sint32) SDL_SwapLE32(src[5]));
12958  const Sint64 sample6 = (Sint64) ((Sint32) SDL_SwapLE32(src[6]));
12959  const Sint64 sample7 = (Sint64) ((Sint32) SDL_SwapLE32(src[7]));
12960  src += 16;
12961  dst[0] = (Sint32) ((sample0 + last_sample0) >> 1);
12962  dst[1] = (Sint32) ((sample1 + last_sample1) >> 1);
12963  dst[2] = (Sint32) ((sample2 + last_sample2) >> 1);
12964  dst[3] = (Sint32) ((sample3 + last_sample3) >> 1);
12965  dst[4] = (Sint32) ((sample4 + last_sample4) >> 1);
12966  dst[5] = (Sint32) ((sample5 + last_sample5) >> 1);
12967  dst[6] = (Sint32) ((sample6 + last_sample6) >> 1);
12968  dst[7] = (Sint32) ((sample7 + last_sample7) >> 1);
12969  last_sample0 = sample0;
12970  last_sample1 = sample1;
12971  last_sample2 = sample2;
12972  last_sample3 = sample3;
12973  last_sample4 = sample4;
12974  last_sample5 = sample5;
12975  last_sample6 = sample6;
12976  last_sample7 = sample7;
12977  dst += 8;
12978  }
12979 
12980  cvt->len_cvt = dstsize;
12981  if (cvt->filters[++cvt->filter_index]) {
12982  cvt->filters[cvt->filter_index] (cvt, format);
12983  }
12984 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
SDL_SwapLE32
#define SDL_SwapLE32(X)
Definition: SDL_endian.h:212
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
Sint64
int64_t Sint64
A signed 64-bit integer type.
Definition: SDL_stdinc.h:160
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Downsample_S32LSB_8c_x4 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 13065 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_SwapLE32, and SDLCALL.

13066 {
13067 #if DEBUG_CONVERT
13068  fprintf(stderr, "Downsample (x4) AUDIO_S32LSB, 8 channels.\n");
13069 #endif
13070 
13071  const int dstsize = cvt->len_cvt / 4;
13072  Sint32 *dst = (Sint32 *) cvt->buf;
13073  const Sint32 *src = (Sint32 *) cvt->buf;
13074  const Sint32 *target = (const Sint32 *) (cvt->buf + dstsize);
13075  Sint64 last_sample0 = (Sint64) ((Sint32) SDL_SwapLE32(src[0]));
13076  Sint64 last_sample1 = (Sint64) ((Sint32) SDL_SwapLE32(src[1]));
13077  Sint64 last_sample2 = (Sint64) ((Sint32) SDL_SwapLE32(src[2]));
13078  Sint64 last_sample3 = (Sint64) ((Sint32) SDL_SwapLE32(src[3]));
13079  Sint64 last_sample4 = (Sint64) ((Sint32) SDL_SwapLE32(src[4]));
13080  Sint64 last_sample5 = (Sint64) ((Sint32) SDL_SwapLE32(src[5]));
13081  Sint64 last_sample6 = (Sint64) ((Sint32) SDL_SwapLE32(src[6]));
13082  Sint64 last_sample7 = (Sint64) ((Sint32) SDL_SwapLE32(src[7]));
13083  while (dst < target) {
13084  const Sint64 sample0 = (Sint64) ((Sint32) SDL_SwapLE32(src[0]));
13085  const Sint64 sample1 = (Sint64) ((Sint32) SDL_SwapLE32(src[1]));
13086  const Sint64 sample2 = (Sint64) ((Sint32) SDL_SwapLE32(src[2]));
13087  const Sint64 sample3 = (Sint64) ((Sint32) SDL_SwapLE32(src[3]));
13088  const Sint64 sample4 = (Sint64) ((Sint32) SDL_SwapLE32(src[4]));
13089  const Sint64 sample5 = (Sint64) ((Sint32) SDL_SwapLE32(src[5]));
13090  const Sint64 sample6 = (Sint64) ((Sint32) SDL_SwapLE32(src[6]));
13091  const Sint64 sample7 = (Sint64) ((Sint32) SDL_SwapLE32(src[7]));
13092  src += 32;
13093  dst[0] = (Sint32) ((sample0 + last_sample0) >> 1);
13094  dst[1] = (Sint32) ((sample1 + last_sample1) >> 1);
13095  dst[2] = (Sint32) ((sample2 + last_sample2) >> 1);
13096  dst[3] = (Sint32) ((sample3 + last_sample3) >> 1);
13097  dst[4] = (Sint32) ((sample4 + last_sample4) >> 1);
13098  dst[5] = (Sint32) ((sample5 + last_sample5) >> 1);
13099  dst[6] = (Sint32) ((sample6 + last_sample6) >> 1);
13100  dst[7] = (Sint32) ((sample7 + last_sample7) >> 1);
13101  last_sample0 = sample0;
13102  last_sample1 = sample1;
13103  last_sample2 = sample2;
13104  last_sample3 = sample3;
13105  last_sample4 = sample4;
13106  last_sample5 = sample5;
13107  last_sample6 = sample6;
13108  last_sample7 = sample7;
13109  dst += 8;
13110  }
13111 
13112  cvt->len_cvt = dstsize;
13113  if (cvt->filters[++cvt->filter_index]) {
13114  cvt->filters[cvt->filter_index] (cvt, format);
13115  }
13116 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
SDL_SwapLE32
#define SDL_SwapLE32(X)
Definition: SDL_endian.h:212
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
Sint64
int64_t Sint64
A signed 64-bit integer type.
Definition: SDL_stdinc.h:160
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Downsample_S32MSB_1c ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 5688 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_AudioCVT::rate_incr, SDL_SwapBE32, and SDLCALL.

5689 {
5690 #if DEBUG_CONVERT
5691  fprintf(stderr, "Downsample arbitrary (x%f) AUDIO_S32MSB, 1 channels.\n", cvt->rate_incr);
5692 #endif
5693 
5694  const int srcsize = cvt->len_cvt - 64;
5695  const int dstsize = (int) (((double)(cvt->len_cvt/4)) * cvt->rate_incr) * 4;
5696  register int eps = 0;
5697  Sint32 *dst = (Sint32 *) cvt->buf;
5698  const Sint32 *src = (Sint32 *) cvt->buf;
5699  const Sint32 *target = (const Sint32 *) (cvt->buf + dstsize);
5700  Sint32 sample0 = ((Sint32) SDL_SwapBE32(src[0]));
5701  Sint32 last_sample0 = sample0;
5702  while (dst < target) {
5703  src++;
5704  eps += dstsize;
5705  if ((eps << 1) >= srcsize) {
5706  dst[0] = ((Sint32) SDL_SwapBE32(sample0));
5707  dst++;
5708  sample0 = (Sint32) ((((Sint64) ((Sint32) SDL_SwapBE32(src[0]))) + ((Sint64) last_sample0)) >> 1);
5709  last_sample0 = sample0;
5710  eps -= srcsize;
5711  }
5712  }
5713  cvt->len_cvt = dstsize;
5714  if (cvt->filters[++cvt->filter_index]) {
5715  cvt->filters[cvt->filter_index] (cvt, format);
5716  }
5717 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_SwapBE32
#define SDL_SwapBE32(X)
Definition: SDL_endian.h:216
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
SDL_AudioCVT::rate_incr
double rate_incr
Definition: SDL_audio.h:205
Sint64
int64_t Sint64
A signed 64-bit integer type.
Definition: SDL_stdinc.h:160
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Downsample_S32MSB_1c_x2 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 13146 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_SwapBE32, and SDLCALL.

13147 {
13148 #if DEBUG_CONVERT
13149  fprintf(stderr, "Downsample (x2) AUDIO_S32MSB, 1 channels.\n");
13150 #endif
13151 
13152  const int dstsize = cvt->len_cvt / 2;
13153  Sint32 *dst = (Sint32 *) cvt->buf;
13154  const Sint32 *src = (Sint32 *) cvt->buf;
13155  const Sint32 *target = (const Sint32 *) (cvt->buf + dstsize);
13156  Sint64 last_sample0 = (Sint64) ((Sint32) SDL_SwapBE32(src[0]));
13157  while (dst < target) {
13158  const Sint64 sample0 = (Sint64) ((Sint32) SDL_SwapBE32(src[0]));
13159  src += 2;
13160  dst[0] = (Sint32) ((sample0 + last_sample0) >> 1);
13161  last_sample0 = sample0;
13162  dst++;
13163  }
13164 
13165  cvt->len_cvt = dstsize;
13166  if (cvt->filters[++cvt->filter_index]) {
13167  cvt->filters[cvt->filter_index] (cvt, format);
13168  }
13169 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_SwapBE32
#define SDL_SwapBE32(X)
Definition: SDL_endian.h:216
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
Sint64
int64_t Sint64
A signed 64-bit integer type.
Definition: SDL_stdinc.h:160
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Downsample_S32MSB_1c_x4 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 13201 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_SwapBE32, and SDLCALL.

13202 {
13203 #if DEBUG_CONVERT
13204  fprintf(stderr, "Downsample (x4) AUDIO_S32MSB, 1 channels.\n");
13205 #endif
13206 
13207  const int dstsize = cvt->len_cvt / 4;
13208  Sint32 *dst = (Sint32 *) cvt->buf;
13209  const Sint32 *src = (Sint32 *) cvt->buf;
13210  const Sint32 *target = (const Sint32 *) (cvt->buf + dstsize);
13211  Sint64 last_sample0 = (Sint64) ((Sint32) SDL_SwapBE32(src[0]));
13212  while (dst < target) {
13213  const Sint64 sample0 = (Sint64) ((Sint32) SDL_SwapBE32(src[0]));
13214  src += 4;
13215  dst[0] = (Sint32) ((sample0 + last_sample0) >> 1);
13216  last_sample0 = sample0;
13217  dst++;
13218  }
13219 
13220  cvt->len_cvt = dstsize;
13221  if (cvt->filters[++cvt->filter_index]) {
13222  cvt->filters[cvt->filter_index] (cvt, format);
13223  }
13224 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_SwapBE32
#define SDL_SwapBE32(X)
Definition: SDL_endian.h:216
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
Sint64
int64_t Sint64
A signed 64-bit integer type.
Definition: SDL_stdinc.h:160
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Downsample_S32MSB_2c ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 5757 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_AudioCVT::rate_incr, SDL_SwapBE32, and SDLCALL.

5758 {
5759 #if DEBUG_CONVERT
5760  fprintf(stderr, "Downsample arbitrary (x%f) AUDIO_S32MSB, 2 channels.\n", cvt->rate_incr);
5761 #endif
5762 
5763  const int srcsize = cvt->len_cvt - 128;
5764  const int dstsize = (int) (((double)(cvt->len_cvt/8)) * cvt->rate_incr) * 8;
5765  register int eps = 0;
5766  Sint32 *dst = (Sint32 *) cvt->buf;
5767  const Sint32 *src = (Sint32 *) cvt->buf;
5768  const Sint32 *target = (const Sint32 *) (cvt->buf + dstsize);
5769  Sint32 sample0 = ((Sint32) SDL_SwapBE32(src[0]));
5770  Sint32 sample1 = ((Sint32) SDL_SwapBE32(src[1]));
5771  Sint32 last_sample0 = sample0;
5772  Sint32 last_sample1 = sample1;
5773  while (dst < target) {
5774  src += 2;
5775  eps += dstsize;
5776  if ((eps << 1) >= srcsize) {
5777  dst[0] = ((Sint32) SDL_SwapBE32(sample0));
5778  dst[1] = ((Sint32) SDL_SwapBE32(sample1));
5779  dst += 2;
5780  sample0 = (Sint32) ((((Sint64) ((Sint32) SDL_SwapBE32(src[0]))) + ((Sint64) last_sample0)) >> 1);
5781  sample1 = (Sint32) ((((Sint64) ((Sint32) SDL_SwapBE32(src[1]))) + ((Sint64) last_sample1)) >> 1);
5782  last_sample0 = sample0;
5783  last_sample1 = sample1;
5784  eps -= srcsize;
5785  }
5786  }
5787  cvt->len_cvt = dstsize;
5788  if (cvt->filters[++cvt->filter_index]) {
5789  cvt->filters[cvt->filter_index] (cvt, format);
5790  }
5791 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_SwapBE32
#define SDL_SwapBE32(X)
Definition: SDL_endian.h:216
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
SDL_AudioCVT::rate_incr
double rate_incr
Definition: SDL_audio.h:205
Sint64
int64_t Sint64
A signed 64-bit integer type.
Definition: SDL_stdinc.h:160
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Downsample_S32MSB_2c_x2 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 13259 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_SwapBE32, and SDLCALL.

13260 {
13261 #if DEBUG_CONVERT
13262  fprintf(stderr, "Downsample (x2) AUDIO_S32MSB, 2 channels.\n");
13263 #endif
13264 
13265  const int dstsize = cvt->len_cvt / 2;
13266  Sint32 *dst = (Sint32 *) cvt->buf;
13267  const Sint32 *src = (Sint32 *) cvt->buf;
13268  const Sint32 *target = (const Sint32 *) (cvt->buf + dstsize);
13269  Sint64 last_sample0 = (Sint64) ((Sint32) SDL_SwapBE32(src[0]));
13270  Sint64 last_sample1 = (Sint64) ((Sint32) SDL_SwapBE32(src[1]));
13271  while (dst < target) {
13272  const Sint64 sample0 = (Sint64) ((Sint32) SDL_SwapBE32(src[0]));
13273  const Sint64 sample1 = (Sint64) ((Sint32) SDL_SwapBE32(src[1]));
13274  src += 4;
13275  dst[0] = (Sint32) ((sample0 + last_sample0) >> 1);
13276  dst[1] = (Sint32) ((sample1 + last_sample1) >> 1);
13277  last_sample0 = sample0;
13278  last_sample1 = sample1;
13279  dst += 2;
13280  }
13281 
13282  cvt->len_cvt = dstsize;
13283  if (cvt->filters[++cvt->filter_index]) {
13284  cvt->filters[cvt->filter_index] (cvt, format);
13285  }
13286 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_SwapBE32
#define SDL_SwapBE32(X)
Definition: SDL_endian.h:216
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
Sint64
int64_t Sint64
A signed 64-bit integer type.
Definition: SDL_stdinc.h:160
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Downsample_S32MSB_2c_x4 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 13325 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_SwapBE32, and SDLCALL.

13326 {
13327 #if DEBUG_CONVERT
13328  fprintf(stderr, "Downsample (x4) AUDIO_S32MSB, 2 channels.\n");
13329 #endif
13330 
13331  const int dstsize = cvt->len_cvt / 4;
13332  Sint32 *dst = (Sint32 *) cvt->buf;
13333  const Sint32 *src = (Sint32 *) cvt->buf;
13334  const Sint32 *target = (const Sint32 *) (cvt->buf + dstsize);
13335  Sint64 last_sample0 = (Sint64) ((Sint32) SDL_SwapBE32(src[0]));
13336  Sint64 last_sample1 = (Sint64) ((Sint32) SDL_SwapBE32(src[1]));
13337  while (dst < target) {
13338  const Sint64 sample0 = (Sint64) ((Sint32) SDL_SwapBE32(src[0]));
13339  const Sint64 sample1 = (Sint64) ((Sint32) SDL_SwapBE32(src[1]));
13340  src += 8;
13341  dst[0] = (Sint32) ((sample0 + last_sample0) >> 1);
13342  dst[1] = (Sint32) ((sample1 + last_sample1) >> 1);
13343  last_sample0 = sample0;
13344  last_sample1 = sample1;
13345  dst += 2;
13346  }
13347 
13348  cvt->len_cvt = dstsize;
13349  if (cvt->filters[++cvt->filter_index]) {
13350  cvt->filters[cvt->filter_index] (cvt, format);
13351  }
13352 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_SwapBE32
#define SDL_SwapBE32(X)
Definition: SDL_endian.h:216
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
Sint64
int64_t Sint64
A signed 64-bit integer type.
Definition: SDL_stdinc.h:160
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Downsample_S32MSB_4c ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 5841 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_AudioCVT::rate_incr, SDL_SwapBE32, and SDLCALL.

5842 {
5843 #if DEBUG_CONVERT
5844  fprintf(stderr, "Downsample arbitrary (x%f) AUDIO_S32MSB, 4 channels.\n", cvt->rate_incr);
5845 #endif
5846 
5847  const int srcsize = cvt->len_cvt - 256;
5848  const int dstsize = (int) (((double)(cvt->len_cvt/16)) * cvt->rate_incr) * 16;
5849  register int eps = 0;
5850  Sint32 *dst = (Sint32 *) cvt->buf;
5851  const Sint32 *src = (Sint32 *) cvt->buf;
5852  const Sint32 *target = (const Sint32 *) (cvt->buf + dstsize);
5853  Sint32 sample0 = ((Sint32) SDL_SwapBE32(src[0]));
5854  Sint32 sample1 = ((Sint32) SDL_SwapBE32(src[1]));
5855  Sint32 sample2 = ((Sint32) SDL_SwapBE32(src[2]));
5856  Sint32 sample3 = ((Sint32) SDL_SwapBE32(src[3]));
5857  Sint32 last_sample0 = sample0;
5858  Sint32 last_sample1 = sample1;
5859  Sint32 last_sample2 = sample2;
5860  Sint32 last_sample3 = sample3;
5861  while (dst < target) {
5862  src += 4;
5863  eps += dstsize;
5864  if ((eps << 1) >= srcsize) {
5865  dst[0] = ((Sint32) SDL_SwapBE32(sample0));
5866  dst[1] = ((Sint32) SDL_SwapBE32(sample1));
5867  dst[2] = ((Sint32) SDL_SwapBE32(sample2));
5868  dst[3] = ((Sint32) SDL_SwapBE32(sample3));
5869  dst += 4;
5870  sample0 = (Sint32) ((((Sint64) ((Sint32) SDL_SwapBE32(src[0]))) + ((Sint64) last_sample0)) >> 1);
5871  sample1 = (Sint32) ((((Sint64) ((Sint32) SDL_SwapBE32(src[1]))) + ((Sint64) last_sample1)) >> 1);
5872  sample2 = (Sint32) ((((Sint64) ((Sint32) SDL_SwapBE32(src[2]))) + ((Sint64) last_sample2)) >> 1);
5873  sample3 = (Sint32) ((((Sint64) ((Sint32) SDL_SwapBE32(src[3]))) + ((Sint64) last_sample3)) >> 1);
5874  last_sample0 = sample0;
5875  last_sample1 = sample1;
5876  last_sample2 = sample2;
5877  last_sample3 = sample3;
5878  eps -= srcsize;
5879  }
5880  }
5881  cvt->len_cvt = dstsize;
5882  if (cvt->filters[++cvt->filter_index]) {
5883  cvt->filters[cvt->filter_index] (cvt, format);
5884  }
5885 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_SwapBE32
#define SDL_SwapBE32(X)
Definition: SDL_endian.h:216
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
SDL_AudioCVT::rate_incr
double rate_incr
Definition: SDL_audio.h:205
Sint64
int64_t Sint64
A signed 64-bit integer type.
Definition: SDL_stdinc.h:160
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Downsample_S32MSB_4c_x2 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 13397 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_SwapBE32, and SDLCALL.

13398 {
13399 #if DEBUG_CONVERT
13400  fprintf(stderr, "Downsample (x2) AUDIO_S32MSB, 4 channels.\n");
13401 #endif
13402 
13403  const int dstsize = cvt->len_cvt / 2;
13404  Sint32 *dst = (Sint32 *) cvt->buf;
13405  const Sint32 *src = (Sint32 *) cvt->buf;
13406  const Sint32 *target = (const Sint32 *) (cvt->buf + dstsize);
13407  Sint64 last_sample0 = (Sint64) ((Sint32) SDL_SwapBE32(src[0]));
13408  Sint64 last_sample1 = (Sint64) ((Sint32) SDL_SwapBE32(src[1]));
13409  Sint64 last_sample2 = (Sint64) ((Sint32) SDL_SwapBE32(src[2]));
13410  Sint64 last_sample3 = (Sint64) ((Sint32) SDL_SwapBE32(src[3]));
13411  while (dst < target) {
13412  const Sint64 sample0 = (Sint64) ((Sint32) SDL_SwapBE32(src[0]));
13413  const Sint64 sample1 = (Sint64) ((Sint32) SDL_SwapBE32(src[1]));
13414  const Sint64 sample2 = (Sint64) ((Sint32) SDL_SwapBE32(src[2]));
13415  const Sint64 sample3 = (Sint64) ((Sint32) SDL_SwapBE32(src[3]));
13416  src += 8;
13417  dst[0] = (Sint32) ((sample0 + last_sample0) >> 1);
13418  dst[1] = (Sint32) ((sample1 + last_sample1) >> 1);
13419  dst[2] = (Sint32) ((sample2 + last_sample2) >> 1);
13420  dst[3] = (Sint32) ((sample3 + last_sample3) >> 1);
13421  last_sample0 = sample0;
13422  last_sample1 = sample1;
13423  last_sample2 = sample2;
13424  last_sample3 = sample3;
13425  dst += 4;
13426  }
13427 
13428  cvt->len_cvt = dstsize;
13429  if (cvt->filters[++cvt->filter_index]) {
13430  cvt->filters[cvt->filter_index] (cvt, format);
13431  }
13432 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_SwapBE32
#define SDL_SwapBE32(X)
Definition: SDL_endian.h:216
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
Sint64
int64_t Sint64
A signed 64-bit integer type.
Definition: SDL_stdinc.h:160
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Downsample_S32MSB_4c_x4 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 13485 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_SwapBE32, and SDLCALL.

13486 {
13487 #if DEBUG_CONVERT
13488  fprintf(stderr, "Downsample (x4) AUDIO_S32MSB, 4 channels.\n");
13489 #endif
13490 
13491  const int dstsize = cvt->len_cvt / 4;
13492  Sint32 *dst = (Sint32 *) cvt->buf;
13493  const Sint32 *src = (Sint32 *) cvt->buf;
13494  const Sint32 *target = (const Sint32 *) (cvt->buf + dstsize);
13495  Sint64 last_sample0 = (Sint64) ((Sint32) SDL_SwapBE32(src[0]));
13496  Sint64 last_sample1 = (Sint64) ((Sint32) SDL_SwapBE32(src[1]));
13497  Sint64 last_sample2 = (Sint64) ((Sint32) SDL_SwapBE32(src[2]));
13498  Sint64 last_sample3 = (Sint64) ((Sint32) SDL_SwapBE32(src[3]));
13499  while (dst < target) {
13500  const Sint64 sample0 = (Sint64) ((Sint32) SDL_SwapBE32(src[0]));
13501  const Sint64 sample1 = (Sint64) ((Sint32) SDL_SwapBE32(src[1]));
13502  const Sint64 sample2 = (Sint64) ((Sint32) SDL_SwapBE32(src[2]));
13503  const Sint64 sample3 = (Sint64) ((Sint32) SDL_SwapBE32(src[3]));
13504  src += 16;
13505  dst[0] = (Sint32) ((sample0 + last_sample0) >> 1);
13506  dst[1] = (Sint32) ((sample1 + last_sample1) >> 1);
13507  dst[2] = (Sint32) ((sample2 + last_sample2) >> 1);
13508  dst[3] = (Sint32) ((sample3 + last_sample3) >> 1);
13509  last_sample0 = sample0;
13510  last_sample1 = sample1;
13511  last_sample2 = sample2;
13512  last_sample3 = sample3;
13513  dst += 4;
13514  }
13515 
13516  cvt->len_cvt = dstsize;
13517  if (cvt->filters[++cvt->filter_index]) {
13518  cvt->filters[cvt->filter_index] (cvt, format);
13519  }
13520 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_SwapBE32
#define SDL_SwapBE32(X)
Definition: SDL_endian.h:216
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
Sint64
int64_t Sint64
A signed 64-bit integer type.
Definition: SDL_stdinc.h:160
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Downsample_S32MSB_6c ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 5945 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_AudioCVT::rate_incr, SDL_SwapBE32, and SDLCALL.

5946 {
5947 #if DEBUG_CONVERT
5948  fprintf(stderr, "Downsample arbitrary (x%f) AUDIO_S32MSB, 6 channels.\n", cvt->rate_incr);
5949 #endif
5950 
5951  const int srcsize = cvt->len_cvt - 384;
5952  const int dstsize = (int) (((double)(cvt->len_cvt/24)) * cvt->rate_incr) * 24;
5953  register int eps = 0;
5954  Sint32 *dst = (Sint32 *) cvt->buf;
5955  const Sint32 *src = (Sint32 *) cvt->buf;
5956  const Sint32 *target = (const Sint32 *) (cvt->buf + dstsize);
5957  Sint32 sample0 = ((Sint32) SDL_SwapBE32(src[0]));
5958  Sint32 sample1 = ((Sint32) SDL_SwapBE32(src[1]));
5959  Sint32 sample2 = ((Sint32) SDL_SwapBE32(src[2]));
5960  Sint32 sample3 = ((Sint32) SDL_SwapBE32(src[3]));
5961  Sint32 sample4 = ((Sint32) SDL_SwapBE32(src[4]));
5962  Sint32 sample5 = ((Sint32) SDL_SwapBE32(src[5]));
5963  Sint32 last_sample0 = sample0;
5964  Sint32 last_sample1 = sample1;
5965  Sint32 last_sample2 = sample2;
5966  Sint32 last_sample3 = sample3;
5967  Sint32 last_sample4 = sample4;
5968  Sint32 last_sample5 = sample5;
5969  while (dst < target) {
5970  src += 6;
5971  eps += dstsize;
5972  if ((eps << 1) >= srcsize) {
5973  dst[0] = ((Sint32) SDL_SwapBE32(sample0));
5974  dst[1] = ((Sint32) SDL_SwapBE32(sample1));
5975  dst[2] = ((Sint32) SDL_SwapBE32(sample2));
5976  dst[3] = ((Sint32) SDL_SwapBE32(sample3));
5977  dst[4] = ((Sint32) SDL_SwapBE32(sample4));
5978  dst[5] = ((Sint32) SDL_SwapBE32(sample5));
5979  dst += 6;
5980  sample0 = (Sint32) ((((Sint64) ((Sint32) SDL_SwapBE32(src[0]))) + ((Sint64) last_sample0)) >> 1);
5981  sample1 = (Sint32) ((((Sint64) ((Sint32) SDL_SwapBE32(src[1]))) + ((Sint64) last_sample1)) >> 1);
5982  sample2 = (Sint32) ((((Sint64) ((Sint32) SDL_SwapBE32(src[2]))) + ((Sint64) last_sample2)) >> 1);
5983  sample3 = (Sint32) ((((Sint64) ((Sint32) SDL_SwapBE32(src[3]))) + ((Sint64) last_sample3)) >> 1);
5984  sample4 = (Sint32) ((((Sint64) ((Sint32) SDL_SwapBE32(src[4]))) + ((Sint64) last_sample4)) >> 1);
5985  sample5 = (Sint32) ((((Sint64) ((Sint32) SDL_SwapBE32(src[5]))) + ((Sint64) last_sample5)) >> 1);
5986  last_sample0 = sample0;
5987  last_sample1 = sample1;
5988  last_sample2 = sample2;
5989  last_sample3 = sample3;
5990  last_sample4 = sample4;
5991  last_sample5 = sample5;
5992  eps -= srcsize;
5993  }
5994  }
5995  cvt->len_cvt = dstsize;
5996  if (cvt->filters[++cvt->filter_index]) {
5997  cvt->filters[cvt->filter_index] (cvt, format);
5998  }
5999 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_SwapBE32
#define SDL_SwapBE32(X)
Definition: SDL_endian.h:216
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
SDL_AudioCVT::rate_incr
double rate_incr
Definition: SDL_audio.h:205
Sint64
int64_t Sint64
A signed 64-bit integer type.
Definition: SDL_stdinc.h:160
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Downsample_S32MSB_6c_x2 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 13575 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_SwapBE32, and SDLCALL.

13576 {
13577 #if DEBUG_CONVERT
13578  fprintf(stderr, "Downsample (x2) AUDIO_S32MSB, 6 channels.\n");
13579 #endif
13580 
13581  const int dstsize = cvt->len_cvt / 2;
13582  Sint32 *dst = (Sint32 *) cvt->buf;
13583  const Sint32 *src = (Sint32 *) cvt->buf;
13584  const Sint32 *target = (const Sint32 *) (cvt->buf + dstsize);
13585  Sint64 last_sample0 = (Sint64) ((Sint32) SDL_SwapBE32(src[0]));
13586  Sint64 last_sample1 = (Sint64) ((Sint32) SDL_SwapBE32(src[1]));
13587  Sint64 last_sample2 = (Sint64) ((Sint32) SDL_SwapBE32(src[2]));
13588  Sint64 last_sample3 = (Sint64) ((Sint32) SDL_SwapBE32(src[3]));
13589  Sint64 last_sample4 = (Sint64) ((Sint32) SDL_SwapBE32(src[4]));
13590  Sint64 last_sample5 = (Sint64) ((Sint32) SDL_SwapBE32(src[5]));
13591  while (dst < target) {
13592  const Sint64 sample0 = (Sint64) ((Sint32) SDL_SwapBE32(src[0]));
13593  const Sint64 sample1 = (Sint64) ((Sint32) SDL_SwapBE32(src[1]));
13594  const Sint64 sample2 = (Sint64) ((Sint32) SDL_SwapBE32(src[2]));
13595  const Sint64 sample3 = (Sint64) ((Sint32) SDL_SwapBE32(src[3]));
13596  const Sint64 sample4 = (Sint64) ((Sint32) SDL_SwapBE32(src[4]));
13597  const Sint64 sample5 = (Sint64) ((Sint32) SDL_SwapBE32(src[5]));
13598  src += 12;
13599  dst[0] = (Sint32) ((sample0 + last_sample0) >> 1);
13600  dst[1] = (Sint32) ((sample1 + last_sample1) >> 1);
13601  dst[2] = (Sint32) ((sample2 + last_sample2) >> 1);
13602  dst[3] = (Sint32) ((sample3 + last_sample3) >> 1);
13603  dst[4] = (Sint32) ((sample4 + last_sample4) >> 1);
13604  dst[5] = (Sint32) ((sample5 + last_sample5) >> 1);
13605  last_sample0 = sample0;
13606  last_sample1 = sample1;
13607  last_sample2 = sample2;
13608  last_sample3 = sample3;
13609  last_sample4 = sample4;
13610  last_sample5 = sample5;
13611  dst += 6;
13612  }
13613 
13614  cvt->len_cvt = dstsize;
13615  if (cvt->filters[++cvt->filter_index]) {
13616  cvt->filters[cvt->filter_index] (cvt, format);
13617  }
13618 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_SwapBE32
#define SDL_SwapBE32(X)
Definition: SDL_endian.h:216
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
Sint64
int64_t Sint64
A signed 64-bit integer type.
Definition: SDL_stdinc.h:160
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Downsample_S32MSB_6c_x4 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 13685 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_SwapBE32, and SDLCALL.

13686 {
13687 #if DEBUG_CONVERT
13688  fprintf(stderr, "Downsample (x4) AUDIO_S32MSB, 6 channels.\n");
13689 #endif
13690 
13691  const int dstsize = cvt->len_cvt / 4;
13692  Sint32 *dst = (Sint32 *) cvt->buf;
13693  const Sint32 *src = (Sint32 *) cvt->buf;
13694  const Sint32 *target = (const Sint32 *) (cvt->buf + dstsize);
13695  Sint64 last_sample0 = (Sint64) ((Sint32) SDL_SwapBE32(src[0]));
13696  Sint64 last_sample1 = (Sint64) ((Sint32) SDL_SwapBE32(src[1]));
13697  Sint64 last_sample2 = (Sint64) ((Sint32) SDL_SwapBE32(src[2]));
13698  Sint64 last_sample3 = (Sint64) ((Sint32) SDL_SwapBE32(src[3]));
13699  Sint64 last_sample4 = (Sint64) ((Sint32) SDL_SwapBE32(src[4]));
13700  Sint64 last_sample5 = (Sint64) ((Sint32) SDL_SwapBE32(src[5]));
13701  while (dst < target) {
13702  const Sint64 sample0 = (Sint64) ((Sint32) SDL_SwapBE32(src[0]));
13703  const Sint64 sample1 = (Sint64) ((Sint32) SDL_SwapBE32(src[1]));
13704  const Sint64 sample2 = (Sint64) ((Sint32) SDL_SwapBE32(src[2]));
13705  const Sint64 sample3 = (Sint64) ((Sint32) SDL_SwapBE32(src[3]));
13706  const Sint64 sample4 = (Sint64) ((Sint32) SDL_SwapBE32(src[4]));
13707  const Sint64 sample5 = (Sint64) ((Sint32) SDL_SwapBE32(src[5]));
13708  src += 24;
13709  dst[0] = (Sint32) ((sample0 + last_sample0) >> 1);
13710  dst[1] = (Sint32) ((sample1 + last_sample1) >> 1);
13711  dst[2] = (Sint32) ((sample2 + last_sample2) >> 1);
13712  dst[3] = (Sint32) ((sample3 + last_sample3) >> 1);
13713  dst[4] = (Sint32) ((sample4 + last_sample4) >> 1);
13714  dst[5] = (Sint32) ((sample5 + last_sample5) >> 1);
13715  last_sample0 = sample0;
13716  last_sample1 = sample1;
13717  last_sample2 = sample2;
13718  last_sample3 = sample3;
13719  last_sample4 = sample4;
13720  last_sample5 = sample5;
13721  dst += 6;
13722  }
13723 
13724  cvt->len_cvt = dstsize;
13725  if (cvt->filters[++cvt->filter_index]) {
13726  cvt->filters[cvt->filter_index] (cvt, format);
13727  }
13728 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_SwapBE32
#define SDL_SwapBE32(X)
Definition: SDL_endian.h:216
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
Sint64
int64_t Sint64
A signed 64-bit integer type.
Definition: SDL_stdinc.h:160
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Downsample_S32MSB_8c ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 6069 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_AudioCVT::rate_incr, SDL_SwapBE32, and SDLCALL.

6070 {
6071 #if DEBUG_CONVERT
6072  fprintf(stderr, "Downsample arbitrary (x%f) AUDIO_S32MSB, 8 channels.\n", cvt->rate_incr);
6073 #endif
6074 
6075  const int srcsize = cvt->len_cvt - 512;
6076  const int dstsize = (int) (((double)(cvt->len_cvt/32)) * cvt->rate_incr) * 32;
6077  register int eps = 0;
6078  Sint32 *dst = (Sint32 *) cvt->buf;
6079  const Sint32 *src = (Sint32 *) cvt->buf;
6080  const Sint32 *target = (const Sint32 *) (cvt->buf + dstsize);
6081  Sint32 sample0 = ((Sint32) SDL_SwapBE32(src[0]));
6082  Sint32 sample1 = ((Sint32) SDL_SwapBE32(src[1]));
6083  Sint32 sample2 = ((Sint32) SDL_SwapBE32(src[2]));
6084  Sint32 sample3 = ((Sint32) SDL_SwapBE32(src[3]));
6085  Sint32 sample4 = ((Sint32) SDL_SwapBE32(src[4]));
6086  Sint32 sample5 = ((Sint32) SDL_SwapBE32(src[5]));
6087  Sint32 sample6 = ((Sint32) SDL_SwapBE32(src[6]));
6088  Sint32 sample7 = ((Sint32) SDL_SwapBE32(src[7]));
6089  Sint32 last_sample0 = sample0;
6090  Sint32 last_sample1 = sample1;
6091  Sint32 last_sample2 = sample2;
6092  Sint32 last_sample3 = sample3;
6093  Sint32 last_sample4 = sample4;
6094  Sint32 last_sample5 = sample5;
6095  Sint32 last_sample6 = sample6;
6096  Sint32 last_sample7 = sample7;
6097  while (dst < target) {
6098  src += 8;
6099  eps += dstsize;
6100  if ((eps << 1) >= srcsize) {
6101  dst[0] = ((Sint32) SDL_SwapBE32(sample0));
6102  dst[1] = ((Sint32) SDL_SwapBE32(sample1));
6103  dst[2] = ((Sint32) SDL_SwapBE32(sample2));
6104  dst[3] = ((Sint32) SDL_SwapBE32(sample3));
6105  dst[4] = ((Sint32) SDL_SwapBE32(sample4));
6106  dst[5] = ((Sint32) SDL_SwapBE32(sample5));
6107  dst[6] = ((Sint32) SDL_SwapBE32(sample6));
6108  dst[7] = ((Sint32) SDL_SwapBE32(sample7));
6109  dst += 8;
6110  sample0 = (Sint32) ((((Sint64) ((Sint32) SDL_SwapBE32(src[0]))) + ((Sint64) last_sample0)) >> 1);
6111  sample1 = (Sint32) ((((Sint64) ((Sint32) SDL_SwapBE32(src[1]))) + ((Sint64) last_sample1)) >> 1);
6112  sample2 = (Sint32) ((((Sint64) ((Sint32) SDL_SwapBE32(src[2]))) + ((Sint64) last_sample2)) >> 1);
6113  sample3 = (Sint32) ((((Sint64) ((Sint32) SDL_SwapBE32(src[3]))) + ((Sint64) last_sample3)) >> 1);
6114  sample4 = (Sint32) ((((Sint64) ((Sint32) SDL_SwapBE32(src[4]))) + ((Sint64) last_sample4)) >> 1);
6115  sample5 = (Sint32) ((((Sint64) ((Sint32) SDL_SwapBE32(src[5]))) + ((Sint64) last_sample5)) >> 1);
6116  sample6 = (Sint32) ((((Sint64) ((Sint32) SDL_SwapBE32(src[6]))) + ((Sint64) last_sample6)) >> 1);
6117  sample7 = (Sint32) ((((Sint64) ((Sint32) SDL_SwapBE32(src[7]))) + ((Sint64) last_sample7)) >> 1);
6118  last_sample0 = sample0;
6119  last_sample1 = sample1;
6120  last_sample2 = sample2;
6121  last_sample3 = sample3;
6122  last_sample4 = sample4;
6123  last_sample5 = sample5;
6124  last_sample6 = sample6;
6125  last_sample7 = sample7;
6126  eps -= srcsize;
6127  }
6128  }
6129  cvt->len_cvt = dstsize;
6130  if (cvt->filters[++cvt->filter_index]) {
6131  cvt->filters[cvt->filter_index] (cvt, format);
6132  }
6133 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_SwapBE32
#define SDL_SwapBE32(X)
Definition: SDL_endian.h:216
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
SDL_AudioCVT::rate_incr
double rate_incr
Definition: SDL_audio.h:205
Sint64
int64_t Sint64
A signed 64-bit integer type.
Definition: SDL_stdinc.h:160
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Downsample_S32MSB_8c_x2 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 13793 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_SwapBE32, and SDLCALL.

13794 {
13795 #if DEBUG_CONVERT
13796  fprintf(stderr, "Downsample (x2) AUDIO_S32MSB, 8 channels.\n");
13797 #endif
13798 
13799  const int dstsize = cvt->len_cvt / 2;
13800  Sint32 *dst = (Sint32 *) cvt->buf;
13801  const Sint32 *src = (Sint32 *) cvt->buf;
13802  const Sint32 *target = (const Sint32 *) (cvt->buf + dstsize);
13803  Sint64 last_sample0 = (Sint64) ((Sint32) SDL_SwapBE32(src[0]));
13804  Sint64 last_sample1 = (Sint64) ((Sint32) SDL_SwapBE32(src[1]));
13805  Sint64 last_sample2 = (Sint64) ((Sint32) SDL_SwapBE32(src[2]));
13806  Sint64 last_sample3 = (Sint64) ((Sint32) SDL_SwapBE32(src[3]));
13807  Sint64 last_sample4 = (Sint64) ((Sint32) SDL_SwapBE32(src[4]));
13808  Sint64 last_sample5 = (Sint64) ((Sint32) SDL_SwapBE32(src[5]));
13809  Sint64 last_sample6 = (Sint64) ((Sint32) SDL_SwapBE32(src[6]));
13810  Sint64 last_sample7 = (Sint64) ((Sint32) SDL_SwapBE32(src[7]));
13811  while (dst < target) {
13812  const Sint64 sample0 = (Sint64) ((Sint32) SDL_SwapBE32(src[0]));
13813  const Sint64 sample1 = (Sint64) ((Sint32) SDL_SwapBE32(src[1]));
13814  const Sint64 sample2 = (Sint64) ((Sint32) SDL_SwapBE32(src[2]));
13815  const Sint64 sample3 = (Sint64) ((Sint32) SDL_SwapBE32(src[3]));
13816  const Sint64 sample4 = (Sint64) ((Sint32) SDL_SwapBE32(src[4]));
13817  const Sint64 sample5 = (Sint64) ((Sint32) SDL_SwapBE32(src[5]));
13818  const Sint64 sample6 = (Sint64) ((Sint32) SDL_SwapBE32(src[6]));
13819  const Sint64 sample7 = (Sint64) ((Sint32) SDL_SwapBE32(src[7]));
13820  src += 16;
13821  dst[0] = (Sint32) ((sample0 + last_sample0) >> 1);
13822  dst[1] = (Sint32) ((sample1 + last_sample1) >> 1);
13823  dst[2] = (Sint32) ((sample2 + last_sample2) >> 1);
13824  dst[3] = (Sint32) ((sample3 + last_sample3) >> 1);
13825  dst[4] = (Sint32) ((sample4 + last_sample4) >> 1);
13826  dst[5] = (Sint32) ((sample5 + last_sample5) >> 1);
13827  dst[6] = (Sint32) ((sample6 + last_sample6) >> 1);
13828  dst[7] = (Sint32) ((sample7 + last_sample7) >> 1);
13829  last_sample0 = sample0;
13830  last_sample1 = sample1;
13831  last_sample2 = sample2;
13832  last_sample3 = sample3;
13833  last_sample4 = sample4;
13834  last_sample5 = sample5;
13835  last_sample6 = sample6;
13836  last_sample7 = sample7;
13837  dst += 8;
13838  }
13839 
13840  cvt->len_cvt = dstsize;
13841  if (cvt->filters[++cvt->filter_index]) {
13842  cvt->filters[cvt->filter_index] (cvt, format);
13843  }
13844 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_SwapBE32
#define SDL_SwapBE32(X)
Definition: SDL_endian.h:216
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
Sint64
int64_t Sint64
A signed 64-bit integer type.
Definition: SDL_stdinc.h:160
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Downsample_S32MSB_8c_x4 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 13925 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_SwapBE32, and SDLCALL.

13926 {
13927 #if DEBUG_CONVERT
13928  fprintf(stderr, "Downsample (x4) AUDIO_S32MSB, 8 channels.\n");
13929 #endif
13930 
13931  const int dstsize = cvt->len_cvt / 4;
13932  Sint32 *dst = (Sint32 *) cvt->buf;
13933  const Sint32 *src = (Sint32 *) cvt->buf;
13934  const Sint32 *target = (const Sint32 *) (cvt->buf + dstsize);
13935  Sint64 last_sample0 = (Sint64) ((Sint32) SDL_SwapBE32(src[0]));
13936  Sint64 last_sample1 = (Sint64) ((Sint32) SDL_SwapBE32(src[1]));
13937  Sint64 last_sample2 = (Sint64) ((Sint32) SDL_SwapBE32(src[2]));
13938  Sint64 last_sample3 = (Sint64) ((Sint32) SDL_SwapBE32(src[3]));
13939  Sint64 last_sample4 = (Sint64) ((Sint32) SDL_SwapBE32(src[4]));
13940  Sint64 last_sample5 = (Sint64) ((Sint32) SDL_SwapBE32(src[5]));
13941  Sint64 last_sample6 = (Sint64) ((Sint32) SDL_SwapBE32(src[6]));
13942  Sint64 last_sample7 = (Sint64) ((Sint32) SDL_SwapBE32(src[7]));
13943  while (dst < target) {
13944  const Sint64 sample0 = (Sint64) ((Sint32) SDL_SwapBE32(src[0]));
13945  const Sint64 sample1 = (Sint64) ((Sint32) SDL_SwapBE32(src[1]));
13946  const Sint64 sample2 = (Sint64) ((Sint32) SDL_SwapBE32(src[2]));
13947  const Sint64 sample3 = (Sint64) ((Sint32) SDL_SwapBE32(src[3]));
13948  const Sint64 sample4 = (Sint64) ((Sint32) SDL_SwapBE32(src[4]));
13949  const Sint64 sample5 = (Sint64) ((Sint32) SDL_SwapBE32(src[5]));
13950  const Sint64 sample6 = (Sint64) ((Sint32) SDL_SwapBE32(src[6]));
13951  const Sint64 sample7 = (Sint64) ((Sint32) SDL_SwapBE32(src[7]));
13952  src += 32;
13953  dst[0] = (Sint32) ((sample0 + last_sample0) >> 1);
13954  dst[1] = (Sint32) ((sample1 + last_sample1) >> 1);
13955  dst[2] = (Sint32) ((sample2 + last_sample2) >> 1);
13956  dst[3] = (Sint32) ((sample3 + last_sample3) >> 1);
13957  dst[4] = (Sint32) ((sample4 + last_sample4) >> 1);
13958  dst[5] = (Sint32) ((sample5 + last_sample5) >> 1);
13959  dst[6] = (Sint32) ((sample6 + last_sample6) >> 1);
13960  dst[7] = (Sint32) ((sample7 + last_sample7) >> 1);
13961  last_sample0 = sample0;
13962  last_sample1 = sample1;
13963  last_sample2 = sample2;
13964  last_sample3 = sample3;
13965  last_sample4 = sample4;
13966  last_sample5 = sample5;
13967  last_sample6 = sample6;
13968  last_sample7 = sample7;
13969  dst += 8;
13970  }
13971 
13972  cvt->len_cvt = dstsize;
13973  if (cvt->filters[++cvt->filter_index]) {
13974  cvt->filters[cvt->filter_index] (cvt, format);
13975  }
13976 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_SwapBE32
#define SDL_SwapBE32(X)
Definition: SDL_endian.h:216
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
Sint64
int64_t Sint64
A signed 64-bit integer type.
Definition: SDL_stdinc.h:160
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Downsample_S8_1c ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 2808 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_AudioCVT::rate_incr, and SDLCALL.

2809 {
2810 #if DEBUG_CONVERT
2811  fprintf(stderr, "Downsample arbitrary (x%f) AUDIO_S8, 1 channels.\n", cvt->rate_incr);
2812 #endif
2813 
2814  const int srcsize = cvt->len_cvt - 16;
2815  const int dstsize = (int) (((double)(cvt->len_cvt/1)) * cvt->rate_incr) * 1;
2816  register int eps = 0;
2817  Sint8 *dst = (Sint8 *) cvt->buf;
2818  const Sint8 *src = (Sint8 *) cvt->buf;
2819  const Sint8 *target = (const Sint8 *) (cvt->buf + dstsize);
2820  Sint8 sample0 = ((Sint8) src[0]);
2821  Sint8 last_sample0 = sample0;
2822  while (dst < target) {
2823  src++;
2824  eps += dstsize;
2825  if ((eps << 1) >= srcsize) {
2826  dst[0] = ((Sint8) sample0);
2827  dst++;
2828  sample0 = (Sint8) ((((Sint16) ((Sint8) src[0])) + ((Sint16) last_sample0)) >> 1);
2829  last_sample0 = sample0;
2830  eps -= srcsize;
2831  }
2832  }
2833  cvt->len_cvt = dstsize;
2834  if (cvt->filters[++cvt->filter_index]) {
2835  cvt->filters[cvt->filter_index] (cvt, format);
2836  }
2837 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
Sint8
int8_t Sint8
A signed 8-bit integer type.
Definition: SDL_stdinc.h:135
target
GLenum target
Definition: SDL_opengl_glext.h:1551
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
SDL_AudioCVT::rate_incr
double rate_incr
Definition: SDL_audio.h:205
src
GLenum src
Definition: SDL_opengl_glext.h:1737
Sint16
int16_t Sint16
A signed 16-bit integer type.
Definition: SDL_stdinc.h:143
static void SDL_Downsample_S8_1c_x2 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 7986 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, and SDLCALL.

7987 {
7988 #if DEBUG_CONVERT
7989  fprintf(stderr, "Downsample (x2) AUDIO_S8, 1 channels.\n");
7990 #endif
7991 
7992  const int dstsize = cvt->len_cvt / 2;
7993  Sint8 *dst = (Sint8 *) cvt->buf;
7994  const Sint8 *src = (Sint8 *) cvt->buf;
7995  const Sint8 *target = (const Sint8 *) (cvt->buf + dstsize);
7996  Sint16 last_sample0 = (Sint16) ((Sint8) src[0]);
7997  while (dst < target) {
7998  const Sint16 sample0 = (Sint16) ((Sint8) src[0]);
7999  src += 2;
8000  dst[0] = (Sint8) ((sample0 + last_sample0) >> 1);
8001  last_sample0 = sample0;
8002  dst++;
8003  }
8004 
8005  cvt->len_cvt = dstsize;
8006  if (cvt->filters[++cvt->filter_index]) {
8007  cvt->filters[cvt->filter_index] (cvt, format);
8008  }
8009 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
Sint8
int8_t Sint8
A signed 8-bit integer type.
Definition: SDL_stdinc.h:135
target
GLenum target
Definition: SDL_opengl_glext.h:1551
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
src
GLenum src
Definition: SDL_opengl_glext.h:1737
Sint16
int16_t Sint16
A signed 16-bit integer type.
Definition: SDL_stdinc.h:143
static void SDL_Downsample_S8_1c_x4 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 8041 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, and SDLCALL.

8042 {
8043 #if DEBUG_CONVERT
8044  fprintf(stderr, "Downsample (x4) AUDIO_S8, 1 channels.\n");
8045 #endif
8046 
8047  const int dstsize = cvt->len_cvt / 4;
8048  Sint8 *dst = (Sint8 *) cvt->buf;
8049  const Sint8 *src = (Sint8 *) cvt->buf;
8050  const Sint8 *target = (const Sint8 *) (cvt->buf + dstsize);
8051  Sint16 last_sample0 = (Sint16) ((Sint8) src[0]);
8052  while (dst < target) {
8053  const Sint16 sample0 = (Sint16) ((Sint8) src[0]);
8054  src += 4;
8055  dst[0] = (Sint8) ((sample0 + last_sample0) >> 1);
8056  last_sample0 = sample0;
8057  dst++;
8058  }
8059 
8060  cvt->len_cvt = dstsize;
8061  if (cvt->filters[++cvt->filter_index]) {
8062  cvt->filters[cvt->filter_index] (cvt, format);
8063  }
8064 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
Sint8
int8_t Sint8
A signed 8-bit integer type.
Definition: SDL_stdinc.h:135
target
GLenum target
Definition: SDL_opengl_glext.h:1551
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
src
GLenum src
Definition: SDL_opengl_glext.h:1737
Sint16
int16_t Sint16
A signed 16-bit integer type.
Definition: SDL_stdinc.h:143
static void SDL_Downsample_S8_2c ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 2877 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_AudioCVT::rate_incr, and SDLCALL.

2878 {
2879 #if DEBUG_CONVERT
2880  fprintf(stderr, "Downsample arbitrary (x%f) AUDIO_S8, 2 channels.\n", cvt->rate_incr);
2881 #endif
2882 
2883  const int srcsize = cvt->len_cvt - 32;
2884  const int dstsize = (int) (((double)(cvt->len_cvt/2)) * cvt->rate_incr) * 2;
2885  register int eps = 0;
2886  Sint8 *dst = (Sint8 *) cvt->buf;
2887  const Sint8 *src = (Sint8 *) cvt->buf;
2888  const Sint8 *target = (const Sint8 *) (cvt->buf + dstsize);
2889  Sint8 sample0 = ((Sint8) src[0]);
2890  Sint8 sample1 = ((Sint8) src[1]);
2891  Sint8 last_sample0 = sample0;
2892  Sint8 last_sample1 = sample1;
2893  while (dst < target) {
2894  src += 2;
2895  eps += dstsize;
2896  if ((eps << 1) >= srcsize) {
2897  dst[0] = ((Sint8) sample0);
2898  dst[1] = ((Sint8) sample1);
2899  dst += 2;
2900  sample0 = (Sint8) ((((Sint16) ((Sint8) src[0])) + ((Sint16) last_sample0)) >> 1);
2901  sample1 = (Sint8) ((((Sint16) ((Sint8) src[1])) + ((Sint16) last_sample1)) >> 1);
2902  last_sample0 = sample0;
2903  last_sample1 = sample1;
2904  eps -= srcsize;
2905  }
2906  }
2907  cvt->len_cvt = dstsize;
2908  if (cvt->filters[++cvt->filter_index]) {
2909  cvt->filters[cvt->filter_index] (cvt, format);
2910  }
2911 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
Sint8
int8_t Sint8
A signed 8-bit integer type.
Definition: SDL_stdinc.h:135
target
GLenum target
Definition: SDL_opengl_glext.h:1551
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
SDL_AudioCVT::rate_incr
double rate_incr
Definition: SDL_audio.h:205
src
GLenum src
Definition: SDL_opengl_glext.h:1737
Sint16
int16_t Sint16
A signed 16-bit integer type.
Definition: SDL_stdinc.h:143
static void SDL_Downsample_S8_2c_x2 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 8099 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, and SDLCALL.

8100 {
8101 #if DEBUG_CONVERT
8102  fprintf(stderr, "Downsample (x2) AUDIO_S8, 2 channels.\n");
8103 #endif
8104 
8105  const int dstsize = cvt->len_cvt / 2;
8106  Sint8 *dst = (Sint8 *) cvt->buf;
8107  const Sint8 *src = (Sint8 *) cvt->buf;
8108  const Sint8 *target = (const Sint8 *) (cvt->buf + dstsize);
8109  Sint16 last_sample0 = (Sint16) ((Sint8) src[0]);
8110  Sint16 last_sample1 = (Sint16) ((Sint8) src[1]);
8111  while (dst < target) {
8112  const Sint16 sample0 = (Sint16) ((Sint8) src[0]);
8113  const Sint16 sample1 = (Sint16) ((Sint8) src[1]);
8114  src += 4;
8115  dst[0] = (Sint8) ((sample0 + last_sample0) >> 1);
8116  dst[1] = (Sint8) ((sample1 + last_sample1) >> 1);
8117  last_sample0 = sample0;
8118  last_sample1 = sample1;
8119  dst += 2;
8120  }
8121 
8122  cvt->len_cvt = dstsize;
8123  if (cvt->filters[++cvt->filter_index]) {
8124  cvt->filters[cvt->filter_index] (cvt, format);
8125  }
8126 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
Sint8
int8_t Sint8
A signed 8-bit integer type.
Definition: SDL_stdinc.h:135
target
GLenum target
Definition: SDL_opengl_glext.h:1551
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
src
GLenum src
Definition: SDL_opengl_glext.h:1737
Sint16
int16_t Sint16
A signed 16-bit integer type.
Definition: SDL_stdinc.h:143
static void SDL_Downsample_S8_2c_x4 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 8165 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, and SDLCALL.

8166 {
8167 #if DEBUG_CONVERT
8168  fprintf(stderr, "Downsample (x4) AUDIO_S8, 2 channels.\n");
8169 #endif
8170 
8171  const int dstsize = cvt->len_cvt / 4;
8172  Sint8 *dst = (Sint8 *) cvt->buf;
8173  const Sint8 *src = (Sint8 *) cvt->buf;
8174  const Sint8 *target = (const Sint8 *) (cvt->buf + dstsize);
8175  Sint16 last_sample0 = (Sint16) ((Sint8) src[0]);
8176  Sint16 last_sample1 = (Sint16) ((Sint8) src[1]);
8177  while (dst < target) {
8178  const Sint16 sample0 = (Sint16) ((Sint8) src[0]);
8179  const Sint16 sample1 = (Sint16) ((Sint8) src[1]);
8180  src += 8;
8181  dst[0] = (Sint8) ((sample0 + last_sample0) >> 1);
8182  dst[1] = (Sint8) ((sample1 + last_sample1) >> 1);
8183  last_sample0 = sample0;
8184  last_sample1 = sample1;
8185  dst += 2;
8186  }
8187 
8188  cvt->len_cvt = dstsize;
8189  if (cvt->filters[++cvt->filter_index]) {
8190  cvt->filters[cvt->filter_index] (cvt, format);
8191  }
8192 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
Sint8
int8_t Sint8
A signed 8-bit integer type.
Definition: SDL_stdinc.h:135
target
GLenum target
Definition: SDL_opengl_glext.h:1551
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
src
GLenum src
Definition: SDL_opengl_glext.h:1737
Sint16
int16_t Sint16
A signed 16-bit integer type.
Definition: SDL_stdinc.h:143
static void SDL_Downsample_S8_4c ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 2961 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_AudioCVT::rate_incr, and SDLCALL.

2962 {
2963 #if DEBUG_CONVERT
2964  fprintf(stderr, "Downsample arbitrary (x%f) AUDIO_S8, 4 channels.\n", cvt->rate_incr);
2965 #endif
2966 
2967  const int srcsize = cvt->len_cvt - 64;
2968  const int dstsize = (int) (((double)(cvt->len_cvt/4)) * cvt->rate_incr) * 4;
2969  register int eps = 0;
2970  Sint8 *dst = (Sint8 *) cvt->buf;
2971  const Sint8 *src = (Sint8 *) cvt->buf;
2972  const Sint8 *target = (const Sint8 *) (cvt->buf + dstsize);
2973  Sint8 sample0 = ((Sint8) src[0]);
2974  Sint8 sample1 = ((Sint8) src[1]);
2975  Sint8 sample2 = ((Sint8) src[2]);
2976  Sint8 sample3 = ((Sint8) src[3]);
2977  Sint8 last_sample0 = sample0;
2978  Sint8 last_sample1 = sample1;
2979  Sint8 last_sample2 = sample2;
2980  Sint8 last_sample3 = sample3;
2981  while (dst < target) {
2982  src += 4;
2983  eps += dstsize;
2984  if ((eps << 1) >= srcsize) {
2985  dst[0] = ((Sint8) sample0);
2986  dst[1] = ((Sint8) sample1);
2987  dst[2] = ((Sint8) sample2);
2988  dst[3] = ((Sint8) sample3);
2989  dst += 4;
2990  sample0 = (Sint8) ((((Sint16) ((Sint8) src[0])) + ((Sint16) last_sample0)) >> 1);
2991  sample1 = (Sint8) ((((Sint16) ((Sint8) src[1])) + ((Sint16) last_sample1)) >> 1);
2992  sample2 = (Sint8) ((((Sint16) ((Sint8) src[2])) + ((Sint16) last_sample2)) >> 1);
2993  sample3 = (Sint8) ((((Sint16) ((Sint8) src[3])) + ((Sint16) last_sample3)) >> 1);
2994  last_sample0 = sample0;
2995  last_sample1 = sample1;
2996  last_sample2 = sample2;
2997  last_sample3 = sample3;
2998  eps -= srcsize;
2999  }
3000  }
3001  cvt->len_cvt = dstsize;
3002  if (cvt->filters[++cvt->filter_index]) {
3003  cvt->filters[cvt->filter_index] (cvt, format);
3004  }
3005 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
Sint8
int8_t Sint8
A signed 8-bit integer type.
Definition: SDL_stdinc.h:135
target
GLenum target
Definition: SDL_opengl_glext.h:1551
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
SDL_AudioCVT::rate_incr
double rate_incr
Definition: SDL_audio.h:205
src
GLenum src
Definition: SDL_opengl_glext.h:1737
Sint16
int16_t Sint16
A signed 16-bit integer type.
Definition: SDL_stdinc.h:143
static void SDL_Downsample_S8_4c_x2 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 8237 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, and SDLCALL.

8238 {
8239 #if DEBUG_CONVERT
8240  fprintf(stderr, "Downsample (x2) AUDIO_S8, 4 channels.\n");
8241 #endif
8242 
8243  const int dstsize = cvt->len_cvt / 2;
8244  Sint8 *dst = (Sint8 *) cvt->buf;
8245  const Sint8 *src = (Sint8 *) cvt->buf;
8246  const Sint8 *target = (const Sint8 *) (cvt->buf + dstsize);
8247  Sint16 last_sample0 = (Sint16) ((Sint8) src[0]);
8248  Sint16 last_sample1 = (Sint16) ((Sint8) src[1]);
8249  Sint16 last_sample2 = (Sint16) ((Sint8) src[2]);
8250  Sint16 last_sample3 = (Sint16) ((Sint8) src[3]);
8251  while (dst < target) {
8252  const Sint16 sample0 = (Sint16) ((Sint8) src[0]);
8253  const Sint16 sample1 = (Sint16) ((Sint8) src[1]);
8254  const Sint16 sample2 = (Sint16) ((Sint8) src[2]);
8255  const Sint16 sample3 = (Sint16) ((Sint8) src[3]);
8256  src += 8;
8257  dst[0] = (Sint8) ((sample0 + last_sample0) >> 1);
8258  dst[1] = (Sint8) ((sample1 + last_sample1) >> 1);
8259  dst[2] = (Sint8) ((sample2 + last_sample2) >> 1);
8260  dst[3] = (Sint8) ((sample3 + last_sample3) >> 1);
8261  last_sample0 = sample0;
8262  last_sample1 = sample1;
8263  last_sample2 = sample2;
8264  last_sample3 = sample3;
8265  dst += 4;
8266  }
8267 
8268  cvt->len_cvt = dstsize;
8269  if (cvt->filters[++cvt->filter_index]) {
8270  cvt->filters[cvt->filter_index] (cvt, format);
8271  }
8272 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
Sint8
int8_t Sint8
A signed 8-bit integer type.
Definition: SDL_stdinc.h:135
target
GLenum target
Definition: SDL_opengl_glext.h:1551
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
src
GLenum src
Definition: SDL_opengl_glext.h:1737
Sint16
int16_t Sint16
A signed 16-bit integer type.
Definition: SDL_stdinc.h:143
static void SDL_Downsample_S8_4c_x4 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 8325 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, and SDLCALL.

8326 {
8327 #if DEBUG_CONVERT
8328  fprintf(stderr, "Downsample (x4) AUDIO_S8, 4 channels.\n");
8329 #endif
8330 
8331  const int dstsize = cvt->len_cvt / 4;
8332  Sint8 *dst = (Sint8 *) cvt->buf;
8333  const Sint8 *src = (Sint8 *) cvt->buf;
8334  const Sint8 *target = (const Sint8 *) (cvt->buf + dstsize);
8335  Sint16 last_sample0 = (Sint16) ((Sint8) src[0]);
8336  Sint16 last_sample1 = (Sint16) ((Sint8) src[1]);
8337  Sint16 last_sample2 = (Sint16) ((Sint8) src[2]);
8338  Sint16 last_sample3 = (Sint16) ((Sint8) src[3]);
8339  while (dst < target) {
8340  const Sint16 sample0 = (Sint16) ((Sint8) src[0]);
8341  const Sint16 sample1 = (Sint16) ((Sint8) src[1]);
8342  const Sint16 sample2 = (Sint16) ((Sint8) src[2]);
8343  const Sint16 sample3 = (Sint16) ((Sint8) src[3]);
8344  src += 16;
8345  dst[0] = (Sint8) ((sample0 + last_sample0) >> 1);
8346  dst[1] = (Sint8) ((sample1 + last_sample1) >> 1);
8347  dst[2] = (Sint8) ((sample2 + last_sample2) >> 1);
8348  dst[3] = (Sint8) ((sample3 + last_sample3) >> 1);
8349  last_sample0 = sample0;
8350  last_sample1 = sample1;
8351  last_sample2 = sample2;
8352  last_sample3 = sample3;
8353  dst += 4;
8354  }
8355 
8356  cvt->len_cvt = dstsize;
8357  if (cvt->filters[++cvt->filter_index]) {
8358  cvt->filters[cvt->filter_index] (cvt, format);
8359  }
8360 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
Sint8
int8_t Sint8
A signed 8-bit integer type.
Definition: SDL_stdinc.h:135
target
GLenum target
Definition: SDL_opengl_glext.h:1551
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
src
GLenum src
Definition: SDL_opengl_glext.h:1737
Sint16
int16_t Sint16
A signed 16-bit integer type.
Definition: SDL_stdinc.h:143
static void SDL_Downsample_S8_6c ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 3065 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_AudioCVT::rate_incr, and SDLCALL.

3066 {
3067 #if DEBUG_CONVERT
3068  fprintf(stderr, "Downsample arbitrary (x%f) AUDIO_S8, 6 channels.\n", cvt->rate_incr);
3069 #endif
3070 
3071  const int srcsize = cvt->len_cvt - 96;
3072  const int dstsize = (int) (((double)(cvt->len_cvt/6)) * cvt->rate_incr) * 6;
3073  register int eps = 0;
3074  Sint8 *dst = (Sint8 *) cvt->buf;
3075  const Sint8 *src = (Sint8 *) cvt->buf;
3076  const Sint8 *target = (const Sint8 *) (cvt->buf + dstsize);
3077  Sint8 sample0 = ((Sint8) src[0]);
3078  Sint8 sample1 = ((Sint8) src[1]);
3079  Sint8 sample2 = ((Sint8) src[2]);
3080  Sint8 sample3 = ((Sint8) src[3]);
3081  Sint8 sample4 = ((Sint8) src[4]);
3082  Sint8 sample5 = ((Sint8) src[5]);
3083  Sint8 last_sample0 = sample0;
3084  Sint8 last_sample1 = sample1;
3085  Sint8 last_sample2 = sample2;
3086  Sint8 last_sample3 = sample3;
3087  Sint8 last_sample4 = sample4;
3088  Sint8 last_sample5 = sample5;
3089  while (dst < target) {
3090  src += 6;
3091  eps += dstsize;
3092  if ((eps << 1) >= srcsize) {
3093  dst[0] = ((Sint8) sample0);
3094  dst[1] = ((Sint8) sample1);
3095  dst[2] = ((Sint8) sample2);
3096  dst[3] = ((Sint8) sample3);
3097  dst[4] = ((Sint8) sample4);
3098  dst[5] = ((Sint8) sample5);
3099  dst += 6;
3100  sample0 = (Sint8) ((((Sint16) ((Sint8) src[0])) + ((Sint16) last_sample0)) >> 1);
3101  sample1 = (Sint8) ((((Sint16) ((Sint8) src[1])) + ((Sint16) last_sample1)) >> 1);
3102  sample2 = (Sint8) ((((Sint16) ((Sint8) src[2])) + ((Sint16) last_sample2)) >> 1);
3103  sample3 = (Sint8) ((((Sint16) ((Sint8) src[3])) + ((Sint16) last_sample3)) >> 1);
3104  sample4 = (Sint8) ((((Sint16) ((Sint8) src[4])) + ((Sint16) last_sample4)) >> 1);
3105  sample5 = (Sint8) ((((Sint16) ((Sint8) src[5])) + ((Sint16) last_sample5)) >> 1);
3106  last_sample0 = sample0;
3107  last_sample1 = sample1;
3108  last_sample2 = sample2;
3109  last_sample3 = sample3;
3110  last_sample4 = sample4;
3111  last_sample5 = sample5;
3112  eps -= srcsize;
3113  }
3114  }
3115  cvt->len_cvt = dstsize;
3116  if (cvt->filters[++cvt->filter_index]) {
3117  cvt->filters[cvt->filter_index] (cvt, format);
3118  }
3119 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
Sint8
int8_t Sint8
A signed 8-bit integer type.
Definition: SDL_stdinc.h:135
target
GLenum target
Definition: SDL_opengl_glext.h:1551
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
SDL_AudioCVT::rate_incr
double rate_incr
Definition: SDL_audio.h:205
src
GLenum src
Definition: SDL_opengl_glext.h:1737
Sint16
int16_t Sint16
A signed 16-bit integer type.
Definition: SDL_stdinc.h:143
static void SDL_Downsample_S8_6c_x2 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 8415 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, and SDLCALL.

8416 {
8417 #if DEBUG_CONVERT
8418  fprintf(stderr, "Downsample (x2) AUDIO_S8, 6 channels.\n");
8419 #endif
8420 
8421  const int dstsize = cvt->len_cvt / 2;
8422  Sint8 *dst = (Sint8 *) cvt->buf;
8423  const Sint8 *src = (Sint8 *) cvt->buf;
8424  const Sint8 *target = (const Sint8 *) (cvt->buf + dstsize);
8425  Sint16 last_sample0 = (Sint16) ((Sint8) src[0]);
8426  Sint16 last_sample1 = (Sint16) ((Sint8) src[1]);
8427  Sint16 last_sample2 = (Sint16) ((Sint8) src[2]);
8428  Sint16 last_sample3 = (Sint16) ((Sint8) src[3]);
8429  Sint16 last_sample4 = (Sint16) ((Sint8) src[4]);
8430  Sint16 last_sample5 = (Sint16) ((Sint8) src[5]);
8431  while (dst < target) {
8432  const Sint16 sample0 = (Sint16) ((Sint8) src[0]);
8433  const Sint16 sample1 = (Sint16) ((Sint8) src[1]);
8434  const Sint16 sample2 = (Sint16) ((Sint8) src[2]);
8435  const Sint16 sample3 = (Sint16) ((Sint8) src[3]);
8436  const Sint16 sample4 = (Sint16) ((Sint8) src[4]);
8437  const Sint16 sample5 = (Sint16) ((Sint8) src[5]);
8438  src += 12;
8439  dst[0] = (Sint8) ((sample0 + last_sample0) >> 1);
8440  dst[1] = (Sint8) ((sample1 + last_sample1) >> 1);
8441  dst[2] = (Sint8) ((sample2 + last_sample2) >> 1);
8442  dst[3] = (Sint8) ((sample3 + last_sample3) >> 1);
8443  dst[4] = (Sint8) ((sample4 + last_sample4) >> 1);
8444  dst[5] = (Sint8) ((sample5 + last_sample5) >> 1);
8445  last_sample0 = sample0;
8446  last_sample1 = sample1;
8447  last_sample2 = sample2;
8448  last_sample3 = sample3;
8449  last_sample4 = sample4;
8450  last_sample5 = sample5;
8451  dst += 6;
8452  }
8453 
8454  cvt->len_cvt = dstsize;
8455  if (cvt->filters[++cvt->filter_index]) {
8456  cvt->filters[cvt->filter_index] (cvt, format);
8457  }
8458 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
Sint8
int8_t Sint8
A signed 8-bit integer type.
Definition: SDL_stdinc.h:135
target
GLenum target
Definition: SDL_opengl_glext.h:1551
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
src
GLenum src
Definition: SDL_opengl_glext.h:1737
Sint16
int16_t Sint16
A signed 16-bit integer type.
Definition: SDL_stdinc.h:143
static void SDL_Downsample_S8_6c_x4 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 8525 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, and SDLCALL.

8526 {
8527 #if DEBUG_CONVERT
8528  fprintf(stderr, "Downsample (x4) AUDIO_S8, 6 channels.\n");
8529 #endif
8530 
8531  const int dstsize = cvt->len_cvt / 4;
8532  Sint8 *dst = (Sint8 *) cvt->buf;
8533  const Sint8 *src = (Sint8 *) cvt->buf;
8534  const Sint8 *target = (const Sint8 *) (cvt->buf + dstsize);
8535  Sint16 last_sample0 = (Sint16) ((Sint8) src[0]);
8536  Sint16 last_sample1 = (Sint16) ((Sint8) src[1]);
8537  Sint16 last_sample2 = (Sint16) ((Sint8) src[2]);
8538  Sint16 last_sample3 = (Sint16) ((Sint8) src[3]);
8539  Sint16 last_sample4 = (Sint16) ((Sint8) src[4]);
8540  Sint16 last_sample5 = (Sint16) ((Sint8) src[5]);
8541  while (dst < target) {
8542  const Sint16 sample0 = (Sint16) ((Sint8) src[0]);
8543  const Sint16 sample1 = (Sint16) ((Sint8) src[1]);
8544  const Sint16 sample2 = (Sint16) ((Sint8) src[2]);
8545  const Sint16 sample3 = (Sint16) ((Sint8) src[3]);
8546  const Sint16 sample4 = (Sint16) ((Sint8) src[4]);
8547  const Sint16 sample5 = (Sint16) ((Sint8) src[5]);
8548  src += 24;
8549  dst[0] = (Sint8) ((sample0 + last_sample0) >> 1);
8550  dst[1] = (Sint8) ((sample1 + last_sample1) >> 1);
8551  dst[2] = (Sint8) ((sample2 + last_sample2) >> 1);
8552  dst[3] = (Sint8) ((sample3 + last_sample3) >> 1);
8553  dst[4] = (Sint8) ((sample4 + last_sample4) >> 1);
8554  dst[5] = (Sint8) ((sample5 + last_sample5) >> 1);
8555  last_sample0 = sample0;
8556  last_sample1 = sample1;
8557  last_sample2 = sample2;
8558  last_sample3 = sample3;
8559  last_sample4 = sample4;
8560  last_sample5 = sample5;
8561  dst += 6;
8562  }
8563 
8564  cvt->len_cvt = dstsize;
8565  if (cvt->filters[++cvt->filter_index]) {
8566  cvt->filters[cvt->filter_index] (cvt, format);
8567  }
8568 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
Sint8
int8_t Sint8
A signed 8-bit integer type.
Definition: SDL_stdinc.h:135
target
GLenum target
Definition: SDL_opengl_glext.h:1551
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
src
GLenum src
Definition: SDL_opengl_glext.h:1737
Sint16
int16_t Sint16
A signed 16-bit integer type.
Definition: SDL_stdinc.h:143
static void SDL_Downsample_S8_8c ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 3189 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_AudioCVT::rate_incr, and SDLCALL.

3190 {
3191 #if DEBUG_CONVERT
3192  fprintf(stderr, "Downsample arbitrary (x%f) AUDIO_S8, 8 channels.\n", cvt->rate_incr);
3193 #endif
3194 
3195  const int srcsize = cvt->len_cvt - 128;
3196  const int dstsize = (int) (((double)(cvt->len_cvt/8)) * cvt->rate_incr) * 8;
3197  register int eps = 0;
3198  Sint8 *dst = (Sint8 *) cvt->buf;
3199  const Sint8 *src = (Sint8 *) cvt->buf;
3200  const Sint8 *target = (const Sint8 *) (cvt->buf + dstsize);
3201  Sint8 sample0 = ((Sint8) src[0]);
3202  Sint8 sample1 = ((Sint8) src[1]);
3203  Sint8 sample2 = ((Sint8) src[2]);
3204  Sint8 sample3 = ((Sint8) src[3]);
3205  Sint8 sample4 = ((Sint8) src[4]);
3206  Sint8 sample5 = ((Sint8) src[5]);
3207  Sint8 sample6 = ((Sint8) src[6]);
3208  Sint8 sample7 = ((Sint8) src[7]);
3209  Sint8 last_sample0 = sample0;
3210  Sint8 last_sample1 = sample1;
3211  Sint8 last_sample2 = sample2;
3212  Sint8 last_sample3 = sample3;
3213  Sint8 last_sample4 = sample4;
3214  Sint8 last_sample5 = sample5;
3215  Sint8 last_sample6 = sample6;
3216  Sint8 last_sample7 = sample7;
3217  while (dst < target) {
3218  src += 8;
3219  eps += dstsize;
3220  if ((eps << 1) >= srcsize) {
3221  dst[0] = ((Sint8) sample0);
3222  dst[1] = ((Sint8) sample1);
3223  dst[2] = ((Sint8) sample2);
3224  dst[3] = ((Sint8) sample3);
3225  dst[4] = ((Sint8) sample4);
3226  dst[5] = ((Sint8) sample5);
3227  dst[6] = ((Sint8) sample6);
3228  dst[7] = ((Sint8) sample7);
3229  dst += 8;
3230  sample0 = (Sint8) ((((Sint16) ((Sint8) src[0])) + ((Sint16) last_sample0)) >> 1);
3231  sample1 = (Sint8) ((((Sint16) ((Sint8) src[1])) + ((Sint16) last_sample1)) >> 1);
3232  sample2 = (Sint8) ((((Sint16) ((Sint8) src[2])) + ((Sint16) last_sample2)) >> 1);
3233  sample3 = (Sint8) ((((Sint16) ((Sint8) src[3])) + ((Sint16) last_sample3)) >> 1);
3234  sample4 = (Sint8) ((((Sint16) ((Sint8) src[4])) + ((Sint16) last_sample4)) >> 1);
3235  sample5 = (Sint8) ((((Sint16) ((Sint8) src[5])) + ((Sint16) last_sample5)) >> 1);
3236  sample6 = (Sint8) ((((Sint16) ((Sint8) src[6])) + ((Sint16) last_sample6)) >> 1);
3237  sample7 = (Sint8) ((((Sint16) ((Sint8) src[7])) + ((Sint16) last_sample7)) >> 1);
3238  last_sample0 = sample0;
3239  last_sample1 = sample1;
3240  last_sample2 = sample2;
3241  last_sample3 = sample3;
3242  last_sample4 = sample4;
3243  last_sample5 = sample5;
3244  last_sample6 = sample6;
3245  last_sample7 = sample7;
3246  eps -= srcsize;
3247  }
3248  }
3249  cvt->len_cvt = dstsize;
3250  if (cvt->filters[++cvt->filter_index]) {
3251  cvt->filters[cvt->filter_index] (cvt, format);
3252  }
3253 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
Sint8
int8_t Sint8
A signed 8-bit integer type.
Definition: SDL_stdinc.h:135
target
GLenum target
Definition: SDL_opengl_glext.h:1551
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
SDL_AudioCVT::rate_incr
double rate_incr
Definition: SDL_audio.h:205
src
GLenum src
Definition: SDL_opengl_glext.h:1737
Sint16
int16_t Sint16
A signed 16-bit integer type.
Definition: SDL_stdinc.h:143
static void SDL_Downsample_S8_8c_x2 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 8633 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, and SDLCALL.

8634 {
8635 #if DEBUG_CONVERT
8636  fprintf(stderr, "Downsample (x2) AUDIO_S8, 8 channels.\n");
8637 #endif
8638 
8639  const int dstsize = cvt->len_cvt / 2;
8640  Sint8 *dst = (Sint8 *) cvt->buf;
8641  const Sint8 *src = (Sint8 *) cvt->buf;
8642  const Sint8 *target = (const Sint8 *) (cvt->buf + dstsize);
8643  Sint16 last_sample0 = (Sint16) ((Sint8) src[0]);
8644  Sint16 last_sample1 = (Sint16) ((Sint8) src[1]);
8645  Sint16 last_sample2 = (Sint16) ((Sint8) src[2]);
8646  Sint16 last_sample3 = (Sint16) ((Sint8) src[3]);
8647  Sint16 last_sample4 = (Sint16) ((Sint8) src[4]);
8648  Sint16 last_sample5 = (Sint16) ((Sint8) src[5]);
8649  Sint16 last_sample6 = (Sint16) ((Sint8) src[6]);
8650  Sint16 last_sample7 = (Sint16) ((Sint8) src[7]);
8651  while (dst < target) {
8652  const Sint16 sample0 = (Sint16) ((Sint8) src[0]);
8653  const Sint16 sample1 = (Sint16) ((Sint8) src[1]);
8654  const Sint16 sample2 = (Sint16) ((Sint8) src[2]);
8655  const Sint16 sample3 = (Sint16) ((Sint8) src[3]);
8656  const Sint16 sample4 = (Sint16) ((Sint8) src[4]);
8657  const Sint16 sample5 = (Sint16) ((Sint8) src[5]);
8658  const Sint16 sample6 = (Sint16) ((Sint8) src[6]);
8659  const Sint16 sample7 = (Sint16) ((Sint8) src[7]);
8660  src += 16;
8661  dst[0] = (Sint8) ((sample0 + last_sample0) >> 1);
8662  dst[1] = (Sint8) ((sample1 + last_sample1) >> 1);
8663  dst[2] = (Sint8) ((sample2 + last_sample2) >> 1);
8664  dst[3] = (Sint8) ((sample3 + last_sample3) >> 1);
8665  dst[4] = (Sint8) ((sample4 + last_sample4) >> 1);
8666  dst[5] = (Sint8) ((sample5 + last_sample5) >> 1);
8667  dst[6] = (Sint8) ((sample6 + last_sample6) >> 1);
8668  dst[7] = (Sint8) ((sample7 + last_sample7) >> 1);
8669  last_sample0 = sample0;
8670  last_sample1 = sample1;
8671  last_sample2 = sample2;
8672  last_sample3 = sample3;
8673  last_sample4 = sample4;
8674  last_sample5 = sample5;
8675  last_sample6 = sample6;
8676  last_sample7 = sample7;
8677  dst += 8;
8678  }
8679 
8680  cvt->len_cvt = dstsize;
8681  if (cvt->filters[++cvt->filter_index]) {
8682  cvt->filters[cvt->filter_index] (cvt, format);
8683  }
8684 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
Sint8
int8_t Sint8
A signed 8-bit integer type.
Definition: SDL_stdinc.h:135
target
GLenum target
Definition: SDL_opengl_glext.h:1551
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
src
GLenum src
Definition: SDL_opengl_glext.h:1737
Sint16
int16_t Sint16
A signed 16-bit integer type.
Definition: SDL_stdinc.h:143
static void SDL_Downsample_S8_8c_x4 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 8765 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, and SDLCALL.

8766 {
8767 #if DEBUG_CONVERT
8768  fprintf(stderr, "Downsample (x4) AUDIO_S8, 8 channels.\n");
8769 #endif
8770 
8771  const int dstsize = cvt->len_cvt / 4;
8772  Sint8 *dst = (Sint8 *) cvt->buf;
8773  const Sint8 *src = (Sint8 *) cvt->buf;
8774  const Sint8 *target = (const Sint8 *) (cvt->buf + dstsize);
8775  Sint16 last_sample0 = (Sint16) ((Sint8) src[0]);
8776  Sint16 last_sample1 = (Sint16) ((Sint8) src[1]);
8777  Sint16 last_sample2 = (Sint16) ((Sint8) src[2]);
8778  Sint16 last_sample3 = (Sint16) ((Sint8) src[3]);
8779  Sint16 last_sample4 = (Sint16) ((Sint8) src[4]);
8780  Sint16 last_sample5 = (Sint16) ((Sint8) src[5]);
8781  Sint16 last_sample6 = (Sint16) ((Sint8) src[6]);
8782  Sint16 last_sample7 = (Sint16) ((Sint8) src[7]);
8783  while (dst < target) {
8784  const Sint16 sample0 = (Sint16) ((Sint8) src[0]);
8785  const Sint16 sample1 = (Sint16) ((Sint8) src[1]);
8786  const Sint16 sample2 = (Sint16) ((Sint8) src[2]);
8787  const Sint16 sample3 = (Sint16) ((Sint8) src[3]);
8788  const Sint16 sample4 = (Sint16) ((Sint8) src[4]);
8789  const Sint16 sample5 = (Sint16) ((Sint8) src[5]);
8790  const Sint16 sample6 = (Sint16) ((Sint8) src[6]);
8791  const Sint16 sample7 = (Sint16) ((Sint8) src[7]);
8792  src += 32;
8793  dst[0] = (Sint8) ((sample0 + last_sample0) >> 1);
8794  dst[1] = (Sint8) ((sample1 + last_sample1) >> 1);
8795  dst[2] = (Sint8) ((sample2 + last_sample2) >> 1);
8796  dst[3] = (Sint8) ((sample3 + last_sample3) >> 1);
8797  dst[4] = (Sint8) ((sample4 + last_sample4) >> 1);
8798  dst[5] = (Sint8) ((sample5 + last_sample5) >> 1);
8799  dst[6] = (Sint8) ((sample6 + last_sample6) >> 1);
8800  dst[7] = (Sint8) ((sample7 + last_sample7) >> 1);
8801  last_sample0 = sample0;
8802  last_sample1 = sample1;
8803  last_sample2 = sample2;
8804  last_sample3 = sample3;
8805  last_sample4 = sample4;
8806  last_sample5 = sample5;
8807  last_sample6 = sample6;
8808  last_sample7 = sample7;
8809  dst += 8;
8810  }
8811 
8812  cvt->len_cvt = dstsize;
8813  if (cvt->filters[++cvt->filter_index]) {
8814  cvt->filters[cvt->filter_index] (cvt, format);
8815  }
8816 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
Sint8
int8_t Sint8
A signed 8-bit integer type.
Definition: SDL_stdinc.h:135
target
GLenum target
Definition: SDL_opengl_glext.h:1551
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
src
GLenum src
Definition: SDL_opengl_glext.h:1737
Sint16
int16_t Sint16
A signed 16-bit integer type.
Definition: SDL_stdinc.h:143
static void SDL_Downsample_U16LSB_1c ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 3288 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_AudioCVT::rate_incr, SDL_SwapLE16, and SDLCALL.

3289 {
3290 #if DEBUG_CONVERT
3291  fprintf(stderr, "Downsample arbitrary (x%f) AUDIO_U16LSB, 1 channels.\n", cvt->rate_incr);
3292 #endif
3293 
3294  const int srcsize = cvt->len_cvt - 32;
3295  const int dstsize = (int) (((double)(cvt->len_cvt/2)) * cvt->rate_incr) * 2;
3296  register int eps = 0;
3297  Uint16 *dst = (Uint16 *) cvt->buf;
3298  const Uint16 *src = (Uint16 *) cvt->buf;
3299  const Uint16 *target = (const Uint16 *) (cvt->buf + dstsize);
3300  Uint16 sample0 = SDL_SwapLE16(src[0]);
3301  Uint16 last_sample0 = sample0;
3302  while (dst < target) {
3303  src++;
3304  eps += dstsize;
3305  if ((eps << 1) >= srcsize) {
3306  dst[0] = SDL_SwapLE16(sample0);
3307  dst++;
3308  sample0 = (Uint16) ((((Sint32) SDL_SwapLE16(src[0])) + ((Sint32) last_sample0)) >> 1);
3309  last_sample0 = sample0;
3310  eps -= srcsize;
3311  }
3312  }
3313  cvt->len_cvt = dstsize;
3314  if (cvt->filters[++cvt->filter_index]) {
3315  cvt->filters[cvt->filter_index] (cvt, format);
3316  }
3317 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
SDL_AudioCVT::rate_incr
double rate_incr
Definition: SDL_audio.h:205
Uint16
uint16_t Uint16
An unsigned 16-bit integer type.
Definition: SDL_stdinc.h:147
SDL_SwapLE16
#define SDL_SwapLE16(X)
Definition: SDL_endian.h:211
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Downsample_U16LSB_1c_x2 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 8846 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_SwapLE16, and SDLCALL.

8847 {
8848 #if DEBUG_CONVERT
8849  fprintf(stderr, "Downsample (x2) AUDIO_U16LSB, 1 channels.\n");
8850 #endif
8851 
8852  const int dstsize = cvt->len_cvt / 2;
8853  Uint16 *dst = (Uint16 *) cvt->buf;
8854  const Uint16 *src = (Uint16 *) cvt->buf;
8855  const Uint16 *target = (const Uint16 *) (cvt->buf + dstsize);
8856  Sint32 last_sample0 = (Sint32) SDL_SwapLE16(src[0]);
8857  while (dst < target) {
8858  const Sint32 sample0 = (Sint32) SDL_SwapLE16(src[0]);
8859  src += 2;
8860  dst[0] = (Uint16) ((sample0 + last_sample0) >> 1);
8861  last_sample0 = sample0;
8862  dst++;
8863  }
8864 
8865  cvt->len_cvt = dstsize;
8866  if (cvt->filters[++cvt->filter_index]) {
8867  cvt->filters[cvt->filter_index] (cvt, format);
8868  }
8869 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
Uint16
uint16_t Uint16
An unsigned 16-bit integer type.
Definition: SDL_stdinc.h:147
SDL_SwapLE16
#define SDL_SwapLE16(X)
Definition: SDL_endian.h:211
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Downsample_U16LSB_1c_x4 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 8901 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_SwapLE16, and SDLCALL.

8902 {
8903 #if DEBUG_CONVERT
8904  fprintf(stderr, "Downsample (x4) AUDIO_U16LSB, 1 channels.\n");
8905 #endif
8906 
8907  const int dstsize = cvt->len_cvt / 4;
8908  Uint16 *dst = (Uint16 *) cvt->buf;
8909  const Uint16 *src = (Uint16 *) cvt->buf;
8910  const Uint16 *target = (const Uint16 *) (cvt->buf + dstsize);
8911  Sint32 last_sample0 = (Sint32) SDL_SwapLE16(src[0]);
8912  while (dst < target) {
8913  const Sint32 sample0 = (Sint32) SDL_SwapLE16(src[0]);
8914  src += 4;
8915  dst[0] = (Uint16) ((sample0 + last_sample0) >> 1);
8916  last_sample0 = sample0;
8917  dst++;
8918  }
8919 
8920  cvt->len_cvt = dstsize;
8921  if (cvt->filters[++cvt->filter_index]) {
8922  cvt->filters[cvt->filter_index] (cvt, format);
8923  }
8924 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
Uint16
uint16_t Uint16
An unsigned 16-bit integer type.
Definition: SDL_stdinc.h:147
SDL_SwapLE16
#define SDL_SwapLE16(X)
Definition: SDL_endian.h:211
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Downsample_U16LSB_2c ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 3357 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_AudioCVT::rate_incr, SDL_SwapLE16, and SDLCALL.

3358 {
3359 #if DEBUG_CONVERT
3360  fprintf(stderr, "Downsample arbitrary (x%f) AUDIO_U16LSB, 2 channels.\n", cvt->rate_incr);
3361 #endif
3362 
3363  const int srcsize = cvt->len_cvt - 64;
3364  const int dstsize = (int) (((double)(cvt->len_cvt/4)) * cvt->rate_incr) * 4;
3365  register int eps = 0;
3366  Uint16 *dst = (Uint16 *) cvt->buf;
3367  const Uint16 *src = (Uint16 *) cvt->buf;
3368  const Uint16 *target = (const Uint16 *) (cvt->buf + dstsize);
3369  Uint16 sample0 = SDL_SwapLE16(src[0]);
3370  Uint16 sample1 = SDL_SwapLE16(src[1]);
3371  Uint16 last_sample0 = sample0;
3372  Uint16 last_sample1 = sample1;
3373  while (dst < target) {
3374  src += 2;
3375  eps += dstsize;
3376  if ((eps << 1) >= srcsize) {
3377  dst[0] = SDL_SwapLE16(sample0);
3378  dst[1] = SDL_SwapLE16(sample1);
3379  dst += 2;
3380  sample0 = (Uint16) ((((Sint32) SDL_SwapLE16(src[0])) + ((Sint32) last_sample0)) >> 1);
3381  sample1 = (Uint16) ((((Sint32) SDL_SwapLE16(src[1])) + ((Sint32) last_sample1)) >> 1);
3382  last_sample0 = sample0;
3383  last_sample1 = sample1;
3384  eps -= srcsize;
3385  }
3386  }
3387  cvt->len_cvt = dstsize;
3388  if (cvt->filters[++cvt->filter_index]) {
3389  cvt->filters[cvt->filter_index] (cvt, format);
3390  }
3391 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
SDL_AudioCVT::rate_incr
double rate_incr
Definition: SDL_audio.h:205
Uint16
uint16_t Uint16
An unsigned 16-bit integer type.
Definition: SDL_stdinc.h:147
SDL_SwapLE16
#define SDL_SwapLE16(X)
Definition: SDL_endian.h:211
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Downsample_U16LSB_2c_x2 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 8959 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_SwapLE16, and SDLCALL.

8960 {
8961 #if DEBUG_CONVERT
8962  fprintf(stderr, "Downsample (x2) AUDIO_U16LSB, 2 channels.\n");
8963 #endif
8964 
8965  const int dstsize = cvt->len_cvt / 2;
8966  Uint16 *dst = (Uint16 *) cvt->buf;
8967  const Uint16 *src = (Uint16 *) cvt->buf;
8968  const Uint16 *target = (const Uint16 *) (cvt->buf + dstsize);
8969  Sint32 last_sample0 = (Sint32) SDL_SwapLE16(src[0]);
8970  Sint32 last_sample1 = (Sint32) SDL_SwapLE16(src[1]);
8971  while (dst < target) {
8972  const Sint32 sample0 = (Sint32) SDL_SwapLE16(src[0]);
8973  const Sint32 sample1 = (Sint32) SDL_SwapLE16(src[1]);
8974  src += 4;
8975  dst[0] = (Uint16) ((sample0 + last_sample0) >> 1);
8976  dst[1] = (Uint16) ((sample1 + last_sample1) >> 1);
8977  last_sample0 = sample0;
8978  last_sample1 = sample1;
8979  dst += 2;
8980  }
8981 
8982  cvt->len_cvt = dstsize;
8983  if (cvt->filters[++cvt->filter_index]) {
8984  cvt->filters[cvt->filter_index] (cvt, format);
8985  }
8986 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
Uint16
uint16_t Uint16
An unsigned 16-bit integer type.
Definition: SDL_stdinc.h:147
SDL_SwapLE16
#define SDL_SwapLE16(X)
Definition: SDL_endian.h:211
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Downsample_U16LSB_2c_x4 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 9025 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_SwapLE16, and SDLCALL.

9026 {
9027 #if DEBUG_CONVERT
9028  fprintf(stderr, "Downsample (x4) AUDIO_U16LSB, 2 channels.\n");
9029 #endif
9030 
9031  const int dstsize = cvt->len_cvt / 4;
9032  Uint16 *dst = (Uint16 *) cvt->buf;
9033  const Uint16 *src = (Uint16 *) cvt->buf;
9034  const Uint16 *target = (const Uint16 *) (cvt->buf + dstsize);
9035  Sint32 last_sample0 = (Sint32) SDL_SwapLE16(src[0]);
9036  Sint32 last_sample1 = (Sint32) SDL_SwapLE16(src[1]);
9037  while (dst < target) {
9038  const Sint32 sample0 = (Sint32) SDL_SwapLE16(src[0]);
9039  const Sint32 sample1 = (Sint32) SDL_SwapLE16(src[1]);
9040  src += 8;
9041  dst[0] = (Uint16) ((sample0 + last_sample0) >> 1);
9042  dst[1] = (Uint16) ((sample1 + last_sample1) >> 1);
9043  last_sample0 = sample0;
9044  last_sample1 = sample1;
9045  dst += 2;
9046  }
9047 
9048  cvt->len_cvt = dstsize;
9049  if (cvt->filters[++cvt->filter_index]) {
9050  cvt->filters[cvt->filter_index] (cvt, format);
9051  }
9052 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
Uint16
uint16_t Uint16
An unsigned 16-bit integer type.
Definition: SDL_stdinc.h:147
SDL_SwapLE16
#define SDL_SwapLE16(X)
Definition: SDL_endian.h:211
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Downsample_U16LSB_4c ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 3441 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_AudioCVT::rate_incr, SDL_SwapLE16, and SDLCALL.

3442 {
3443 #if DEBUG_CONVERT
3444  fprintf(stderr, "Downsample arbitrary (x%f) AUDIO_U16LSB, 4 channels.\n", cvt->rate_incr);
3445 #endif
3446 
3447  const int srcsize = cvt->len_cvt - 128;
3448  const int dstsize = (int) (((double)(cvt->len_cvt/8)) * cvt->rate_incr) * 8;
3449  register int eps = 0;
3450  Uint16 *dst = (Uint16 *) cvt->buf;
3451  const Uint16 *src = (Uint16 *) cvt->buf;
3452  const Uint16 *target = (const Uint16 *) (cvt->buf + dstsize);
3453  Uint16 sample0 = SDL_SwapLE16(src[0]);
3454  Uint16 sample1 = SDL_SwapLE16(src[1]);
3455  Uint16 sample2 = SDL_SwapLE16(src[2]);
3456  Uint16 sample3 = SDL_SwapLE16(src[3]);
3457  Uint16 last_sample0 = sample0;
3458  Uint16 last_sample1 = sample1;
3459  Uint16 last_sample2 = sample2;
3460  Uint16 last_sample3 = sample3;
3461  while (dst < target) {
3462  src += 4;
3463  eps += dstsize;
3464  if ((eps << 1) >= srcsize) {
3465  dst[0] = SDL_SwapLE16(sample0);
3466  dst[1] = SDL_SwapLE16(sample1);
3467  dst[2] = SDL_SwapLE16(sample2);
3468  dst[3] = SDL_SwapLE16(sample3);
3469  dst += 4;
3470  sample0 = (Uint16) ((((Sint32) SDL_SwapLE16(src[0])) + ((Sint32) last_sample0)) >> 1);
3471  sample1 = (Uint16) ((((Sint32) SDL_SwapLE16(src[1])) + ((Sint32) last_sample1)) >> 1);
3472  sample2 = (Uint16) ((((Sint32) SDL_SwapLE16(src[2])) + ((Sint32) last_sample2)) >> 1);
3473  sample3 = (Uint16) ((((Sint32) SDL_SwapLE16(src[3])) + ((Sint32) last_sample3)) >> 1);
3474  last_sample0 = sample0;
3475  last_sample1 = sample1;
3476  last_sample2 = sample2;
3477  last_sample3 = sample3;
3478  eps -= srcsize;
3479  }
3480  }
3481  cvt->len_cvt = dstsize;
3482  if (cvt->filters[++cvt->filter_index]) {
3483  cvt->filters[cvt->filter_index] (cvt, format);
3484  }
3485 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
SDL_AudioCVT::rate_incr
double rate_incr
Definition: SDL_audio.h:205
Uint16
uint16_t Uint16
An unsigned 16-bit integer type.
Definition: SDL_stdinc.h:147
SDL_SwapLE16
#define SDL_SwapLE16(X)
Definition: SDL_endian.h:211
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Downsample_U16LSB_4c_x2 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 9097 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_SwapLE16, and SDLCALL.

9098 {
9099 #if DEBUG_CONVERT
9100  fprintf(stderr, "Downsample (x2) AUDIO_U16LSB, 4 channels.\n");
9101 #endif
9102 
9103  const int dstsize = cvt->len_cvt / 2;
9104  Uint16 *dst = (Uint16 *) cvt->buf;
9105  const Uint16 *src = (Uint16 *) cvt->buf;
9106  const Uint16 *target = (const Uint16 *) (cvt->buf + dstsize);
9107  Sint32 last_sample0 = (Sint32) SDL_SwapLE16(src[0]);
9108  Sint32 last_sample1 = (Sint32) SDL_SwapLE16(src[1]);
9109  Sint32 last_sample2 = (Sint32) SDL_SwapLE16(src[2]);
9110  Sint32 last_sample3 = (Sint32) SDL_SwapLE16(src[3]);
9111  while (dst < target) {
9112  const Sint32 sample0 = (Sint32) SDL_SwapLE16(src[0]);
9113  const Sint32 sample1 = (Sint32) SDL_SwapLE16(src[1]);
9114  const Sint32 sample2 = (Sint32) SDL_SwapLE16(src[2]);
9115  const Sint32 sample3 = (Sint32) SDL_SwapLE16(src[3]);
9116  src += 8;
9117  dst[0] = (Uint16) ((sample0 + last_sample0) >> 1);
9118  dst[1] = (Uint16) ((sample1 + last_sample1) >> 1);
9119  dst[2] = (Uint16) ((sample2 + last_sample2) >> 1);
9120  dst[3] = (Uint16) ((sample3 + last_sample3) >> 1);
9121  last_sample0 = sample0;
9122  last_sample1 = sample1;
9123  last_sample2 = sample2;
9124  last_sample3 = sample3;
9125  dst += 4;
9126  }
9127 
9128  cvt->len_cvt = dstsize;
9129  if (cvt->filters[++cvt->filter_index]) {
9130  cvt->filters[cvt->filter_index] (cvt, format);
9131  }
9132 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
Uint16
uint16_t Uint16
An unsigned 16-bit integer type.
Definition: SDL_stdinc.h:147
SDL_SwapLE16
#define SDL_SwapLE16(X)
Definition: SDL_endian.h:211
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Downsample_U16LSB_4c_x4 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 9185 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_SwapLE16, and SDLCALL.

9186 {
9187 #if DEBUG_CONVERT
9188  fprintf(stderr, "Downsample (x4) AUDIO_U16LSB, 4 channels.\n");
9189 #endif
9190 
9191  const int dstsize = cvt->len_cvt / 4;
9192  Uint16 *dst = (Uint16 *) cvt->buf;
9193  const Uint16 *src = (Uint16 *) cvt->buf;
9194  const Uint16 *target = (const Uint16 *) (cvt->buf + dstsize);
9195  Sint32 last_sample0 = (Sint32) SDL_SwapLE16(src[0]);
9196  Sint32 last_sample1 = (Sint32) SDL_SwapLE16(src[1]);
9197  Sint32 last_sample2 = (Sint32) SDL_SwapLE16(src[2]);
9198  Sint32 last_sample3 = (Sint32) SDL_SwapLE16(src[3]);
9199  while (dst < target) {
9200  const Sint32 sample0 = (Sint32) SDL_SwapLE16(src[0]);
9201  const Sint32 sample1 = (Sint32) SDL_SwapLE16(src[1]);
9202  const Sint32 sample2 = (Sint32) SDL_SwapLE16(src[2]);
9203  const Sint32 sample3 = (Sint32) SDL_SwapLE16(src[3]);
9204  src += 16;
9205  dst[0] = (Uint16) ((sample0 + last_sample0) >> 1);
9206  dst[1] = (Uint16) ((sample1 + last_sample1) >> 1);
9207  dst[2] = (Uint16) ((sample2 + last_sample2) >> 1);
9208  dst[3] = (Uint16) ((sample3 + last_sample3) >> 1);
9209  last_sample0 = sample0;
9210  last_sample1 = sample1;
9211  last_sample2 = sample2;
9212  last_sample3 = sample3;
9213  dst += 4;
9214  }
9215 
9216  cvt->len_cvt = dstsize;
9217  if (cvt->filters[++cvt->filter_index]) {
9218  cvt->filters[cvt->filter_index] (cvt, format);
9219  }
9220 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
Uint16
uint16_t Uint16
An unsigned 16-bit integer type.
Definition: SDL_stdinc.h:147
SDL_SwapLE16
#define SDL_SwapLE16(X)
Definition: SDL_endian.h:211
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Downsample_U16LSB_6c ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 3545 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_AudioCVT::rate_incr, SDL_SwapLE16, and SDLCALL.

3546 {
3547 #if DEBUG_CONVERT
3548  fprintf(stderr, "Downsample arbitrary (x%f) AUDIO_U16LSB, 6 channels.\n", cvt->rate_incr);
3549 #endif
3550 
3551  const int srcsize = cvt->len_cvt - 192;
3552  const int dstsize = (int) (((double)(cvt->len_cvt/12)) * cvt->rate_incr) * 12;
3553  register int eps = 0;
3554  Uint16 *dst = (Uint16 *) cvt->buf;
3555  const Uint16 *src = (Uint16 *) cvt->buf;
3556  const Uint16 *target = (const Uint16 *) (cvt->buf + dstsize);
3557  Uint16 sample0 = SDL_SwapLE16(src[0]);
3558  Uint16 sample1 = SDL_SwapLE16(src[1]);
3559  Uint16 sample2 = SDL_SwapLE16(src[2]);
3560  Uint16 sample3 = SDL_SwapLE16(src[3]);
3561  Uint16 sample4 = SDL_SwapLE16(src[4]);
3562  Uint16 sample5 = SDL_SwapLE16(src[5]);
3563  Uint16 last_sample0 = sample0;
3564  Uint16 last_sample1 = sample1;
3565  Uint16 last_sample2 = sample2;
3566  Uint16 last_sample3 = sample3;
3567  Uint16 last_sample4 = sample4;
3568  Uint16 last_sample5 = sample5;
3569  while (dst < target) {
3570  src += 6;
3571  eps += dstsize;
3572  if ((eps << 1) >= srcsize) {
3573  dst[0] = SDL_SwapLE16(sample0);
3574  dst[1] = SDL_SwapLE16(sample1);
3575  dst[2] = SDL_SwapLE16(sample2);
3576  dst[3] = SDL_SwapLE16(sample3);
3577  dst[4] = SDL_SwapLE16(sample4);
3578  dst[5] = SDL_SwapLE16(sample5);
3579  dst += 6;
3580  sample0 = (Uint16) ((((Sint32) SDL_SwapLE16(src[0])) + ((Sint32) last_sample0)) >> 1);
3581  sample1 = (Uint16) ((((Sint32) SDL_SwapLE16(src[1])) + ((Sint32) last_sample1)) >> 1);
3582  sample2 = (Uint16) ((((Sint32) SDL_SwapLE16(src[2])) + ((Sint32) last_sample2)) >> 1);
3583  sample3 = (Uint16) ((((Sint32) SDL_SwapLE16(src[3])) + ((Sint32) last_sample3)) >> 1);
3584  sample4 = (Uint16) ((((Sint32) SDL_SwapLE16(src[4])) + ((Sint32) last_sample4)) >> 1);
3585  sample5 = (Uint16) ((((Sint32) SDL_SwapLE16(src[5])) + ((Sint32) last_sample5)) >> 1);
3586  last_sample0 = sample0;
3587  last_sample1 = sample1;
3588  last_sample2 = sample2;
3589  last_sample3 = sample3;
3590  last_sample4 = sample4;
3591  last_sample5 = sample5;
3592  eps -= srcsize;
3593  }
3594  }
3595  cvt->len_cvt = dstsize;
3596  if (cvt->filters[++cvt->filter_index]) {
3597  cvt->filters[cvt->filter_index] (cvt, format);
3598  }
3599 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
SDL_AudioCVT::rate_incr
double rate_incr
Definition: SDL_audio.h:205
Uint16
uint16_t Uint16
An unsigned 16-bit integer type.
Definition: SDL_stdinc.h:147
SDL_SwapLE16
#define SDL_SwapLE16(X)
Definition: SDL_endian.h:211
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Downsample_U16LSB_6c_x2 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 9275 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_SwapLE16, and SDLCALL.

9276 {
9277 #if DEBUG_CONVERT
9278  fprintf(stderr, "Downsample (x2) AUDIO_U16LSB, 6 channels.\n");
9279 #endif
9280 
9281  const int dstsize = cvt->len_cvt / 2;
9282  Uint16 *dst = (Uint16 *) cvt->buf;
9283  const Uint16 *src = (Uint16 *) cvt->buf;
9284  const Uint16 *target = (const Uint16 *) (cvt->buf + dstsize);
9285  Sint32 last_sample0 = (Sint32) SDL_SwapLE16(src[0]);
9286  Sint32 last_sample1 = (Sint32) SDL_SwapLE16(src[1]);
9287  Sint32 last_sample2 = (Sint32) SDL_SwapLE16(src[2]);
9288  Sint32 last_sample3 = (Sint32) SDL_SwapLE16(src[3]);
9289  Sint32 last_sample4 = (Sint32) SDL_SwapLE16(src[4]);
9290  Sint32 last_sample5 = (Sint32) SDL_SwapLE16(src[5]);
9291  while (dst < target) {
9292  const Sint32 sample0 = (Sint32) SDL_SwapLE16(src[0]);
9293  const Sint32 sample1 = (Sint32) SDL_SwapLE16(src[1]);
9294  const Sint32 sample2 = (Sint32) SDL_SwapLE16(src[2]);
9295  const Sint32 sample3 = (Sint32) SDL_SwapLE16(src[3]);
9296  const Sint32 sample4 = (Sint32) SDL_SwapLE16(src[4]);
9297  const Sint32 sample5 = (Sint32) SDL_SwapLE16(src[5]);
9298  src += 12;
9299  dst[0] = (Uint16) ((sample0 + last_sample0) >> 1);
9300  dst[1] = (Uint16) ((sample1 + last_sample1) >> 1);
9301  dst[2] = (Uint16) ((sample2 + last_sample2) >> 1);
9302  dst[3] = (Uint16) ((sample3 + last_sample3) >> 1);
9303  dst[4] = (Uint16) ((sample4 + last_sample4) >> 1);
9304  dst[5] = (Uint16) ((sample5 + last_sample5) >> 1);
9305  last_sample0 = sample0;
9306  last_sample1 = sample1;
9307  last_sample2 = sample2;
9308  last_sample3 = sample3;
9309  last_sample4 = sample4;
9310  last_sample5 = sample5;
9311  dst += 6;
9312  }
9313 
9314  cvt->len_cvt = dstsize;
9315  if (cvt->filters[++cvt->filter_index]) {
9316  cvt->filters[cvt->filter_index] (cvt, format);
9317  }
9318 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
Uint16
uint16_t Uint16
An unsigned 16-bit integer type.
Definition: SDL_stdinc.h:147
SDL_SwapLE16
#define SDL_SwapLE16(X)
Definition: SDL_endian.h:211
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Downsample_U16LSB_6c_x4 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 9385 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_SwapLE16, and SDLCALL.

9386 {
9387 #if DEBUG_CONVERT
9388  fprintf(stderr, "Downsample (x4) AUDIO_U16LSB, 6 channels.\n");
9389 #endif
9390 
9391  const int dstsize = cvt->len_cvt / 4;
9392  Uint16 *dst = (Uint16 *) cvt->buf;
9393  const Uint16 *src = (Uint16 *) cvt->buf;
9394  const Uint16 *target = (const Uint16 *) (cvt->buf + dstsize);
9395  Sint32 last_sample0 = (Sint32) SDL_SwapLE16(src[0]);
9396  Sint32 last_sample1 = (Sint32) SDL_SwapLE16(src[1]);
9397  Sint32 last_sample2 = (Sint32) SDL_SwapLE16(src[2]);
9398  Sint32 last_sample3 = (Sint32) SDL_SwapLE16(src[3]);
9399  Sint32 last_sample4 = (Sint32) SDL_SwapLE16(src[4]);
9400  Sint32 last_sample5 = (Sint32) SDL_SwapLE16(src[5]);
9401  while (dst < target) {
9402  const Sint32 sample0 = (Sint32) SDL_SwapLE16(src[0]);
9403  const Sint32 sample1 = (Sint32) SDL_SwapLE16(src[1]);
9404  const Sint32 sample2 = (Sint32) SDL_SwapLE16(src[2]);
9405  const Sint32 sample3 = (Sint32) SDL_SwapLE16(src[3]);
9406  const Sint32 sample4 = (Sint32) SDL_SwapLE16(src[4]);
9407  const Sint32 sample5 = (Sint32) SDL_SwapLE16(src[5]);
9408  src += 24;
9409  dst[0] = (Uint16) ((sample0 + last_sample0) >> 1);
9410  dst[1] = (Uint16) ((sample1 + last_sample1) >> 1);
9411  dst[2] = (Uint16) ((sample2 + last_sample2) >> 1);
9412  dst[3] = (Uint16) ((sample3 + last_sample3) >> 1);
9413  dst[4] = (Uint16) ((sample4 + last_sample4) >> 1);
9414  dst[5] = (Uint16) ((sample5 + last_sample5) >> 1);
9415  last_sample0 = sample0;
9416  last_sample1 = sample1;
9417  last_sample2 = sample2;
9418  last_sample3 = sample3;
9419  last_sample4 = sample4;
9420  last_sample5 = sample5;
9421  dst += 6;
9422  }
9423 
9424  cvt->len_cvt = dstsize;
9425  if (cvt->filters[++cvt->filter_index]) {
9426  cvt->filters[cvt->filter_index] (cvt, format);
9427  }
9428 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
Uint16
uint16_t Uint16
An unsigned 16-bit integer type.
Definition: SDL_stdinc.h:147
SDL_SwapLE16
#define SDL_SwapLE16(X)
Definition: SDL_endian.h:211
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Downsample_U16LSB_8c ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 3669 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_AudioCVT::rate_incr, SDL_SwapLE16, and SDLCALL.

3670 {
3671 #if DEBUG_CONVERT
3672  fprintf(stderr, "Downsample arbitrary (x%f) AUDIO_U16LSB, 8 channels.\n", cvt->rate_incr);
3673 #endif
3674 
3675  const int srcsize = cvt->len_cvt - 256;
3676  const int dstsize = (int) (((double)(cvt->len_cvt/16)) * cvt->rate_incr) * 16;
3677  register int eps = 0;
3678  Uint16 *dst = (Uint16 *) cvt->buf;
3679  const Uint16 *src = (Uint16 *) cvt->buf;
3680  const Uint16 *target = (const Uint16 *) (cvt->buf + dstsize);
3681  Uint16 sample0 = SDL_SwapLE16(src[0]);
3682  Uint16 sample1 = SDL_SwapLE16(src[1]);
3683  Uint16 sample2 = SDL_SwapLE16(src[2]);
3684  Uint16 sample3 = SDL_SwapLE16(src[3]);
3685  Uint16 sample4 = SDL_SwapLE16(src[4]);
3686  Uint16 sample5 = SDL_SwapLE16(src[5]);
3687  Uint16 sample6 = SDL_SwapLE16(src[6]);
3688  Uint16 sample7 = SDL_SwapLE16(src[7]);
3689  Uint16 last_sample0 = sample0;
3690  Uint16 last_sample1 = sample1;
3691  Uint16 last_sample2 = sample2;
3692  Uint16 last_sample3 = sample3;
3693  Uint16 last_sample4 = sample4;
3694  Uint16 last_sample5 = sample5;
3695  Uint16 last_sample6 = sample6;
3696  Uint16 last_sample7 = sample7;
3697  while (dst < target) {
3698  src += 8;
3699  eps += dstsize;
3700  if ((eps << 1) >= srcsize) {
3701  dst[0] = SDL_SwapLE16(sample0);
3702  dst[1] = SDL_SwapLE16(sample1);
3703  dst[2] = SDL_SwapLE16(sample2);
3704  dst[3] = SDL_SwapLE16(sample3);
3705  dst[4] = SDL_SwapLE16(sample4);
3706  dst[5] = SDL_SwapLE16(sample5);
3707  dst[6] = SDL_SwapLE16(sample6);
3708  dst[7] = SDL_SwapLE16(sample7);
3709  dst += 8;
3710  sample0 = (Uint16) ((((Sint32) SDL_SwapLE16(src[0])) + ((Sint32) last_sample0)) >> 1);
3711  sample1 = (Uint16) ((((Sint32) SDL_SwapLE16(src[1])) + ((Sint32) last_sample1)) >> 1);
3712  sample2 = (Uint16) ((((Sint32) SDL_SwapLE16(src[2])) + ((Sint32) last_sample2)) >> 1);
3713  sample3 = (Uint16) ((((Sint32) SDL_SwapLE16(src[3])) + ((Sint32) last_sample3)) >> 1);
3714  sample4 = (Uint16) ((((Sint32) SDL_SwapLE16(src[4])) + ((Sint32) last_sample4)) >> 1);
3715  sample5 = (Uint16) ((((Sint32) SDL_SwapLE16(src[5])) + ((Sint32) last_sample5)) >> 1);
3716  sample6 = (Uint16) ((((Sint32) SDL_SwapLE16(src[6])) + ((Sint32) last_sample6)) >> 1);
3717  sample7 = (Uint16) ((((Sint32) SDL_SwapLE16(src[7])) + ((Sint32) last_sample7)) >> 1);
3718  last_sample0 = sample0;
3719  last_sample1 = sample1;
3720  last_sample2 = sample2;
3721  last_sample3 = sample3;
3722  last_sample4 = sample4;
3723  last_sample5 = sample5;
3724  last_sample6 = sample6;
3725  last_sample7 = sample7;
3726  eps -= srcsize;
3727  }
3728  }
3729  cvt->len_cvt = dstsize;
3730  if (cvt->filters[++cvt->filter_index]) {
3731  cvt->filters[cvt->filter_index] (cvt, format);
3732  }
3733 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
SDL_AudioCVT::rate_incr
double rate_incr
Definition: SDL_audio.h:205
Uint16
uint16_t Uint16
An unsigned 16-bit integer type.
Definition: SDL_stdinc.h:147
SDL_SwapLE16
#define SDL_SwapLE16(X)
Definition: SDL_endian.h:211
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Downsample_U16LSB_8c_x2 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 9493 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_SwapLE16, and SDLCALL.

9494 {
9495 #if DEBUG_CONVERT
9496  fprintf(stderr, "Downsample (x2) AUDIO_U16LSB, 8 channels.\n");
9497 #endif
9498 
9499  const int dstsize = cvt->len_cvt / 2;
9500  Uint16 *dst = (Uint16 *) cvt->buf;
9501  const Uint16 *src = (Uint16 *) cvt->buf;
9502  const Uint16 *target = (const Uint16 *) (cvt->buf + dstsize);
9503  Sint32 last_sample0 = (Sint32) SDL_SwapLE16(src[0]);
9504  Sint32 last_sample1 = (Sint32) SDL_SwapLE16(src[1]);
9505  Sint32 last_sample2 = (Sint32) SDL_SwapLE16(src[2]);
9506  Sint32 last_sample3 = (Sint32) SDL_SwapLE16(src[3]);
9507  Sint32 last_sample4 = (Sint32) SDL_SwapLE16(src[4]);
9508  Sint32 last_sample5 = (Sint32) SDL_SwapLE16(src[5]);
9509  Sint32 last_sample6 = (Sint32) SDL_SwapLE16(src[6]);
9510  Sint32 last_sample7 = (Sint32) SDL_SwapLE16(src[7]);
9511  while (dst < target) {
9512  const Sint32 sample0 = (Sint32) SDL_SwapLE16(src[0]);
9513  const Sint32 sample1 = (Sint32) SDL_SwapLE16(src[1]);
9514  const Sint32 sample2 = (Sint32) SDL_SwapLE16(src[2]);
9515  const Sint32 sample3 = (Sint32) SDL_SwapLE16(src[3]);
9516  const Sint32 sample4 = (Sint32) SDL_SwapLE16(src[4]);
9517  const Sint32 sample5 = (Sint32) SDL_SwapLE16(src[5]);
9518  const Sint32 sample6 = (Sint32) SDL_SwapLE16(src[6]);
9519  const Sint32 sample7 = (Sint32) SDL_SwapLE16(src[7]);
9520  src += 16;
9521  dst[0] = (Uint16) ((sample0 + last_sample0) >> 1);
9522  dst[1] = (Uint16) ((sample1 + last_sample1) >> 1);
9523  dst[2] = (Uint16) ((sample2 + last_sample2) >> 1);
9524  dst[3] = (Uint16) ((sample3 + last_sample3) >> 1);
9525  dst[4] = (Uint16) ((sample4 + last_sample4) >> 1);
9526  dst[5] = (Uint16) ((sample5 + last_sample5) >> 1);
9527  dst[6] = (Uint16) ((sample6 + last_sample6) >> 1);
9528  dst[7] = (Uint16) ((sample7 + last_sample7) >> 1);
9529  last_sample0 = sample0;
9530  last_sample1 = sample1;
9531  last_sample2 = sample2;
9532  last_sample3 = sample3;
9533  last_sample4 = sample4;
9534  last_sample5 = sample5;
9535  last_sample6 = sample6;
9536  last_sample7 = sample7;
9537  dst += 8;
9538  }
9539 
9540  cvt->len_cvt = dstsize;
9541  if (cvt->filters[++cvt->filter_index]) {
9542  cvt->filters[cvt->filter_index] (cvt, format);
9543  }
9544 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
Uint16
uint16_t Uint16
An unsigned 16-bit integer type.
Definition: SDL_stdinc.h:147
SDL_SwapLE16
#define SDL_SwapLE16(X)
Definition: SDL_endian.h:211
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Downsample_U16LSB_8c_x4 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 9625 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_SwapLE16, and SDLCALL.

9626 {
9627 #if DEBUG_CONVERT
9628  fprintf(stderr, "Downsample (x4) AUDIO_U16LSB, 8 channels.\n");
9629 #endif
9630 
9631  const int dstsize = cvt->len_cvt / 4;
9632  Uint16 *dst = (Uint16 *) cvt->buf;
9633  const Uint16 *src = (Uint16 *) cvt->buf;
9634  const Uint16 *target = (const Uint16 *) (cvt->buf + dstsize);
9635  Sint32 last_sample0 = (Sint32) SDL_SwapLE16(src[0]);
9636  Sint32 last_sample1 = (Sint32) SDL_SwapLE16(src[1]);
9637  Sint32 last_sample2 = (Sint32) SDL_SwapLE16(src[2]);
9638  Sint32 last_sample3 = (Sint32) SDL_SwapLE16(src[3]);
9639  Sint32 last_sample4 = (Sint32) SDL_SwapLE16(src[4]);
9640  Sint32 last_sample5 = (Sint32) SDL_SwapLE16(src[5]);
9641  Sint32 last_sample6 = (Sint32) SDL_SwapLE16(src[6]);
9642  Sint32 last_sample7 = (Sint32) SDL_SwapLE16(src[7]);
9643  while (dst < target) {
9644  const Sint32 sample0 = (Sint32) SDL_SwapLE16(src[0]);
9645  const Sint32 sample1 = (Sint32) SDL_SwapLE16(src[1]);
9646  const Sint32 sample2 = (Sint32) SDL_SwapLE16(src[2]);
9647  const Sint32 sample3 = (Sint32) SDL_SwapLE16(src[3]);
9648  const Sint32 sample4 = (Sint32) SDL_SwapLE16(src[4]);
9649  const Sint32 sample5 = (Sint32) SDL_SwapLE16(src[5]);
9650  const Sint32 sample6 = (Sint32) SDL_SwapLE16(src[6]);
9651  const Sint32 sample7 = (Sint32) SDL_SwapLE16(src[7]);
9652  src += 32;
9653  dst[0] = (Uint16) ((sample0 + last_sample0) >> 1);
9654  dst[1] = (Uint16) ((sample1 + last_sample1) >> 1);
9655  dst[2] = (Uint16) ((sample2 + last_sample2) >> 1);
9656  dst[3] = (Uint16) ((sample3 + last_sample3) >> 1);
9657  dst[4] = (Uint16) ((sample4 + last_sample4) >> 1);
9658  dst[5] = (Uint16) ((sample5 + last_sample5) >> 1);
9659  dst[6] = (Uint16) ((sample6 + last_sample6) >> 1);
9660  dst[7] = (Uint16) ((sample7 + last_sample7) >> 1);
9661  last_sample0 = sample0;
9662  last_sample1 = sample1;
9663  last_sample2 = sample2;
9664  last_sample3 = sample3;
9665  last_sample4 = sample4;
9666  last_sample5 = sample5;
9667  last_sample6 = sample6;
9668  last_sample7 = sample7;
9669  dst += 8;
9670  }
9671 
9672  cvt->len_cvt = dstsize;
9673  if (cvt->filters[++cvt->filter_index]) {
9674  cvt->filters[cvt->filter_index] (cvt, format);
9675  }
9676 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
Uint16
uint16_t Uint16
An unsigned 16-bit integer type.
Definition: SDL_stdinc.h:147
SDL_SwapLE16
#define SDL_SwapLE16(X)
Definition: SDL_endian.h:211
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Downsample_U16MSB_1c ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 4248 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_AudioCVT::rate_incr, SDL_SwapBE16, and SDLCALL.

4249 {
4250 #if DEBUG_CONVERT
4251  fprintf(stderr, "Downsample arbitrary (x%f) AUDIO_U16MSB, 1 channels.\n", cvt->rate_incr);
4252 #endif
4253 
4254  const int srcsize = cvt->len_cvt - 32;
4255  const int dstsize = (int) (((double)(cvt->len_cvt/2)) * cvt->rate_incr) * 2;
4256  register int eps = 0;
4257  Uint16 *dst = (Uint16 *) cvt->buf;
4258  const Uint16 *src = (Uint16 *) cvt->buf;
4259  const Uint16 *target = (const Uint16 *) (cvt->buf + dstsize);
4260  Uint16 sample0 = SDL_SwapBE16(src[0]);
4261  Uint16 last_sample0 = sample0;
4262  while (dst < target) {
4263  src++;
4264  eps += dstsize;
4265  if ((eps << 1) >= srcsize) {
4266  dst[0] = SDL_SwapBE16(sample0);
4267  dst++;
4268  sample0 = (Uint16) ((((Sint32) SDL_SwapBE16(src[0])) + ((Sint32) last_sample0)) >> 1);
4269  last_sample0 = sample0;
4270  eps -= srcsize;
4271  }
4272  }
4273  cvt->len_cvt = dstsize;
4274  if (cvt->filters[++cvt->filter_index]) {
4275  cvt->filters[cvt->filter_index] (cvt, format);
4276  }
4277 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_SwapBE16
#define SDL_SwapBE16(X)
Definition: SDL_endian.h:215
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
SDL_AudioCVT::rate_incr
double rate_incr
Definition: SDL_audio.h:205
Uint16
uint16_t Uint16
An unsigned 16-bit integer type.
Definition: SDL_stdinc.h:147
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Downsample_U16MSB_1c_x2 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 10566 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_SwapBE16, and SDLCALL.

10567 {
10568 #if DEBUG_CONVERT
10569  fprintf(stderr, "Downsample (x2) AUDIO_U16MSB, 1 channels.\n");
10570 #endif
10571 
10572  const int dstsize = cvt->len_cvt / 2;
10573  Uint16 *dst = (Uint16 *) cvt->buf;
10574  const Uint16 *src = (Uint16 *) cvt->buf;
10575  const Uint16 *target = (const Uint16 *) (cvt->buf + dstsize);
10576  Sint32 last_sample0 = (Sint32) SDL_SwapBE16(src[0]);
10577  while (dst < target) {
10578  const Sint32 sample0 = (Sint32) SDL_SwapBE16(src[0]);
10579  src += 2;
10580  dst[0] = (Uint16) ((sample0 + last_sample0) >> 1);
10581  last_sample0 = sample0;
10582  dst++;
10583  }
10584 
10585  cvt->len_cvt = dstsize;
10586  if (cvt->filters[++cvt->filter_index]) {
10587  cvt->filters[cvt->filter_index] (cvt, format);
10588  }
10589 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_SwapBE16
#define SDL_SwapBE16(X)
Definition: SDL_endian.h:215
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
Uint16
uint16_t Uint16
An unsigned 16-bit integer type.
Definition: SDL_stdinc.h:147
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Downsample_U16MSB_1c_x4 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 10621 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_SwapBE16, and SDLCALL.

10622 {
10623 #if DEBUG_CONVERT
10624  fprintf(stderr, "Downsample (x4) AUDIO_U16MSB, 1 channels.\n");
10625 #endif
10626 
10627  const int dstsize = cvt->len_cvt / 4;
10628  Uint16 *dst = (Uint16 *) cvt->buf;
10629  const Uint16 *src = (Uint16 *) cvt->buf;
10630  const Uint16 *target = (const Uint16 *) (cvt->buf + dstsize);
10631  Sint32 last_sample0 = (Sint32) SDL_SwapBE16(src[0]);
10632  while (dst < target) {
10633  const Sint32 sample0 = (Sint32) SDL_SwapBE16(src[0]);
10634  src += 4;
10635  dst[0] = (Uint16) ((sample0 + last_sample0) >> 1);
10636  last_sample0 = sample0;
10637  dst++;
10638  }
10639 
10640  cvt->len_cvt = dstsize;
10641  if (cvt->filters[++cvt->filter_index]) {
10642  cvt->filters[cvt->filter_index] (cvt, format);
10643  }
10644 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_SwapBE16
#define SDL_SwapBE16(X)
Definition: SDL_endian.h:215
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
Uint16
uint16_t Uint16
An unsigned 16-bit integer type.
Definition: SDL_stdinc.h:147
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Downsample_U16MSB_2c ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 4317 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_AudioCVT::rate_incr, SDL_SwapBE16, and SDLCALL.

4318 {
4319 #if DEBUG_CONVERT
4320  fprintf(stderr, "Downsample arbitrary (x%f) AUDIO_U16MSB, 2 channels.\n", cvt->rate_incr);
4321 #endif
4322 
4323  const int srcsize = cvt->len_cvt - 64;
4324  const int dstsize = (int) (((double)(cvt->len_cvt/4)) * cvt->rate_incr) * 4;
4325  register int eps = 0;
4326  Uint16 *dst = (Uint16 *) cvt->buf;
4327  const Uint16 *src = (Uint16 *) cvt->buf;
4328  const Uint16 *target = (const Uint16 *) (cvt->buf + dstsize);
4329  Uint16 sample0 = SDL_SwapBE16(src[0]);
4330  Uint16 sample1 = SDL_SwapBE16(src[1]);
4331  Uint16 last_sample0 = sample0;
4332  Uint16 last_sample1 = sample1;
4333  while (dst < target) {
4334  src += 2;
4335  eps += dstsize;
4336  if ((eps << 1) >= srcsize) {
4337  dst[0] = SDL_SwapBE16(sample0);
4338  dst[1] = SDL_SwapBE16(sample1);
4339  dst += 2;
4340  sample0 = (Uint16) ((((Sint32) SDL_SwapBE16(src[0])) + ((Sint32) last_sample0)) >> 1);
4341  sample1 = (Uint16) ((((Sint32) SDL_SwapBE16(src[1])) + ((Sint32) last_sample1)) >> 1);
4342  last_sample0 = sample0;
4343  last_sample1 = sample1;
4344  eps -= srcsize;
4345  }
4346  }
4347  cvt->len_cvt = dstsize;
4348  if (cvt->filters[++cvt->filter_index]) {
4349  cvt->filters[cvt->filter_index] (cvt, format);
4350  }
4351 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_SwapBE16
#define SDL_SwapBE16(X)
Definition: SDL_endian.h:215
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
SDL_AudioCVT::rate_incr
double rate_incr
Definition: SDL_audio.h:205
Uint16
uint16_t Uint16
An unsigned 16-bit integer type.
Definition: SDL_stdinc.h:147
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Downsample_U16MSB_2c_x2 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 10679 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_SwapBE16, and SDLCALL.

10680 {
10681 #if DEBUG_CONVERT
10682  fprintf(stderr, "Downsample (x2) AUDIO_U16MSB, 2 channels.\n");
10683 #endif
10684 
10685  const int dstsize = cvt->len_cvt / 2;
10686  Uint16 *dst = (Uint16 *) cvt->buf;
10687  const Uint16 *src = (Uint16 *) cvt->buf;
10688  const Uint16 *target = (const Uint16 *) (cvt->buf + dstsize);
10689  Sint32 last_sample0 = (Sint32) SDL_SwapBE16(src[0]);
10690  Sint32 last_sample1 = (Sint32) SDL_SwapBE16(src[1]);
10691  while (dst < target) {
10692  const Sint32 sample0 = (Sint32) SDL_SwapBE16(src[0]);
10693  const Sint32 sample1 = (Sint32) SDL_SwapBE16(src[1]);
10694  src += 4;
10695  dst[0] = (Uint16) ((sample0 + last_sample0) >> 1);
10696  dst[1] = (Uint16) ((sample1 + last_sample1) >> 1);
10697  last_sample0 = sample0;
10698  last_sample1 = sample1;
10699  dst += 2;
10700  }
10701 
10702  cvt->len_cvt = dstsize;
10703  if (cvt->filters[++cvt->filter_index]) {
10704  cvt->filters[cvt->filter_index] (cvt, format);
10705  }
10706 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_SwapBE16
#define SDL_SwapBE16(X)
Definition: SDL_endian.h:215
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
Uint16
uint16_t Uint16
An unsigned 16-bit integer type.
Definition: SDL_stdinc.h:147
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Downsample_U16MSB_2c_x4 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 10745 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_SwapBE16, and SDLCALL.

10746 {
10747 #if DEBUG_CONVERT
10748  fprintf(stderr, "Downsample (x4) AUDIO_U16MSB, 2 channels.\n");
10749 #endif
10750 
10751  const int dstsize = cvt->len_cvt / 4;
10752  Uint16 *dst = (Uint16 *) cvt->buf;
10753  const Uint16 *src = (Uint16 *) cvt->buf;
10754  const Uint16 *target = (const Uint16 *) (cvt->buf + dstsize);
10755  Sint32 last_sample0 = (Sint32) SDL_SwapBE16(src[0]);
10756  Sint32 last_sample1 = (Sint32) SDL_SwapBE16(src[1]);
10757  while (dst < target) {
10758  const Sint32 sample0 = (Sint32) SDL_SwapBE16(src[0]);
10759  const Sint32 sample1 = (Sint32) SDL_SwapBE16(src[1]);
10760  src += 8;
10761  dst[0] = (Uint16) ((sample0 + last_sample0) >> 1);
10762  dst[1] = (Uint16) ((sample1 + last_sample1) >> 1);
10763  last_sample0 = sample0;
10764  last_sample1 = sample1;
10765  dst += 2;
10766  }
10767 
10768  cvt->len_cvt = dstsize;
10769  if (cvt->filters[++cvt->filter_index]) {
10770  cvt->filters[cvt->filter_index] (cvt, format);
10771  }
10772 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_SwapBE16
#define SDL_SwapBE16(X)
Definition: SDL_endian.h:215
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
Uint16
uint16_t Uint16
An unsigned 16-bit integer type.
Definition: SDL_stdinc.h:147
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Downsample_U16MSB_4c ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 4401 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_AudioCVT::rate_incr, SDL_SwapBE16, and SDLCALL.

4402 {
4403 #if DEBUG_CONVERT
4404  fprintf(stderr, "Downsample arbitrary (x%f) AUDIO_U16MSB, 4 channels.\n", cvt->rate_incr);
4405 #endif
4406 
4407  const int srcsize = cvt->len_cvt - 128;
4408  const int dstsize = (int) (((double)(cvt->len_cvt/8)) * cvt->rate_incr) * 8;
4409  register int eps = 0;
4410  Uint16 *dst = (Uint16 *) cvt->buf;
4411  const Uint16 *src = (Uint16 *) cvt->buf;
4412  const Uint16 *target = (const Uint16 *) (cvt->buf + dstsize);
4413  Uint16 sample0 = SDL_SwapBE16(src[0]);
4414  Uint16 sample1 = SDL_SwapBE16(src[1]);
4415  Uint16 sample2 = SDL_SwapBE16(src[2]);
4416  Uint16 sample3 = SDL_SwapBE16(src[3]);
4417  Uint16 last_sample0 = sample0;
4418  Uint16 last_sample1 = sample1;
4419  Uint16 last_sample2 = sample2;
4420  Uint16 last_sample3 = sample3;
4421  while (dst < target) {
4422  src += 4;
4423  eps += dstsize;
4424  if ((eps << 1) >= srcsize) {
4425  dst[0] = SDL_SwapBE16(sample0);
4426  dst[1] = SDL_SwapBE16(sample1);
4427  dst[2] = SDL_SwapBE16(sample2);
4428  dst[3] = SDL_SwapBE16(sample3);
4429  dst += 4;
4430  sample0 = (Uint16) ((((Sint32) SDL_SwapBE16(src[0])) + ((Sint32) last_sample0)) >> 1);
4431  sample1 = (Uint16) ((((Sint32) SDL_SwapBE16(src[1])) + ((Sint32) last_sample1)) >> 1);
4432  sample2 = (Uint16) ((((Sint32) SDL_SwapBE16(src[2])) + ((Sint32) last_sample2)) >> 1);
4433  sample3 = (Uint16) ((((Sint32) SDL_SwapBE16(src[3])) + ((Sint32) last_sample3)) >> 1);
4434  last_sample0 = sample0;
4435  last_sample1 = sample1;
4436  last_sample2 = sample2;
4437  last_sample3 = sample3;
4438  eps -= srcsize;
4439  }
4440  }
4441  cvt->len_cvt = dstsize;
4442  if (cvt->filters[++cvt->filter_index]) {
4443  cvt->filters[cvt->filter_index] (cvt, format);
4444  }
4445 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_SwapBE16
#define SDL_SwapBE16(X)
Definition: SDL_endian.h:215
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
SDL_AudioCVT::rate_incr
double rate_incr
Definition: SDL_audio.h:205
Uint16
uint16_t Uint16
An unsigned 16-bit integer type.
Definition: SDL_stdinc.h:147
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Downsample_U16MSB_4c_x2 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 10817 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_SwapBE16, and SDLCALL.

10818 {
10819 #if DEBUG_CONVERT
10820  fprintf(stderr, "Downsample (x2) AUDIO_U16MSB, 4 channels.\n");
10821 #endif
10822 
10823  const int dstsize = cvt->len_cvt / 2;
10824  Uint16 *dst = (Uint16 *) cvt->buf;
10825  const Uint16 *src = (Uint16 *) cvt->buf;
10826  const Uint16 *target = (const Uint16 *) (cvt->buf + dstsize);
10827  Sint32 last_sample0 = (Sint32) SDL_SwapBE16(src[0]);
10828  Sint32 last_sample1 = (Sint32) SDL_SwapBE16(src[1]);
10829  Sint32 last_sample2 = (Sint32) SDL_SwapBE16(src[2]);
10830  Sint32 last_sample3 = (Sint32) SDL_SwapBE16(src[3]);
10831  while (dst < target) {
10832  const Sint32 sample0 = (Sint32) SDL_SwapBE16(src[0]);
10833  const Sint32 sample1 = (Sint32) SDL_SwapBE16(src[1]);
10834  const Sint32 sample2 = (Sint32) SDL_SwapBE16(src[2]);
10835  const Sint32 sample3 = (Sint32) SDL_SwapBE16(src[3]);
10836  src += 8;
10837  dst[0] = (Uint16) ((sample0 + last_sample0) >> 1);
10838  dst[1] = (Uint16) ((sample1 + last_sample1) >> 1);
10839  dst[2] = (Uint16) ((sample2 + last_sample2) >> 1);
10840  dst[3] = (Uint16) ((sample3 + last_sample3) >> 1);
10841  last_sample0 = sample0;
10842  last_sample1 = sample1;
10843  last_sample2 = sample2;
10844  last_sample3 = sample3;
10845  dst += 4;
10846  }
10847 
10848  cvt->len_cvt = dstsize;
10849  if (cvt->filters[++cvt->filter_index]) {
10850  cvt->filters[cvt->filter_index] (cvt, format);
10851  }
10852 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_SwapBE16
#define SDL_SwapBE16(X)
Definition: SDL_endian.h:215
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
Uint16
uint16_t Uint16
An unsigned 16-bit integer type.
Definition: SDL_stdinc.h:147
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Downsample_U16MSB_4c_x4 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 10905 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_SwapBE16, and SDLCALL.

10906 {
10907 #if DEBUG_CONVERT
10908  fprintf(stderr, "Downsample (x4) AUDIO_U16MSB, 4 channels.\n");
10909 #endif
10910 
10911  const int dstsize = cvt->len_cvt / 4;
10912  Uint16 *dst = (Uint16 *) cvt->buf;
10913  const Uint16 *src = (Uint16 *) cvt->buf;
10914  const Uint16 *target = (const Uint16 *) (cvt->buf + dstsize);
10915  Sint32 last_sample0 = (Sint32) SDL_SwapBE16(src[0]);
10916  Sint32 last_sample1 = (Sint32) SDL_SwapBE16(src[1]);
10917  Sint32 last_sample2 = (Sint32) SDL_SwapBE16(src[2]);
10918  Sint32 last_sample3 = (Sint32) SDL_SwapBE16(src[3]);
10919  while (dst < target) {
10920  const Sint32 sample0 = (Sint32) SDL_SwapBE16(src[0]);
10921  const Sint32 sample1 = (Sint32) SDL_SwapBE16(src[1]);
10922  const Sint32 sample2 = (Sint32) SDL_SwapBE16(src[2]);
10923  const Sint32 sample3 = (Sint32) SDL_SwapBE16(src[3]);
10924  src += 16;
10925  dst[0] = (Uint16) ((sample0 + last_sample0) >> 1);
10926  dst[1] = (Uint16) ((sample1 + last_sample1) >> 1);
10927  dst[2] = (Uint16) ((sample2 + last_sample2) >> 1);
10928  dst[3] = (Uint16) ((sample3 + last_sample3) >> 1);
10929  last_sample0 = sample0;
10930  last_sample1 = sample1;
10931  last_sample2 = sample2;
10932  last_sample3 = sample3;
10933  dst += 4;
10934  }
10935 
10936  cvt->len_cvt = dstsize;
10937  if (cvt->filters[++cvt->filter_index]) {
10938  cvt->filters[cvt->filter_index] (cvt, format);
10939  }
10940 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_SwapBE16
#define SDL_SwapBE16(X)
Definition: SDL_endian.h:215
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
Uint16
uint16_t Uint16
An unsigned 16-bit integer type.
Definition: SDL_stdinc.h:147
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Downsample_U16MSB_6c ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 4505 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_AudioCVT::rate_incr, SDL_SwapBE16, and SDLCALL.

4506 {
4507 #if DEBUG_CONVERT
4508  fprintf(stderr, "Downsample arbitrary (x%f) AUDIO_U16MSB, 6 channels.\n", cvt->rate_incr);
4509 #endif
4510 
4511  const int srcsize = cvt->len_cvt - 192;
4512  const int dstsize = (int) (((double)(cvt->len_cvt/12)) * cvt->rate_incr) * 12;
4513  register int eps = 0;
4514  Uint16 *dst = (Uint16 *) cvt->buf;
4515  const Uint16 *src = (Uint16 *) cvt->buf;
4516  const Uint16 *target = (const Uint16 *) (cvt->buf + dstsize);
4517  Uint16 sample0 = SDL_SwapBE16(src[0]);
4518  Uint16 sample1 = SDL_SwapBE16(src[1]);
4519  Uint16 sample2 = SDL_SwapBE16(src[2]);
4520  Uint16 sample3 = SDL_SwapBE16(src[3]);
4521  Uint16 sample4 = SDL_SwapBE16(src[4]);
4522  Uint16 sample5 = SDL_SwapBE16(src[5]);
4523  Uint16 last_sample0 = sample0;
4524  Uint16 last_sample1 = sample1;
4525  Uint16 last_sample2 = sample2;
4526  Uint16 last_sample3 = sample3;
4527  Uint16 last_sample4 = sample4;
4528  Uint16 last_sample5 = sample5;
4529  while (dst < target) {
4530  src += 6;
4531  eps += dstsize;
4532  if ((eps << 1) >= srcsize) {
4533  dst[0] = SDL_SwapBE16(sample0);
4534  dst[1] = SDL_SwapBE16(sample1);
4535  dst[2] = SDL_SwapBE16(sample2);
4536  dst[3] = SDL_SwapBE16(sample3);
4537  dst[4] = SDL_SwapBE16(sample4);
4538  dst[5] = SDL_SwapBE16(sample5);
4539  dst += 6;
4540  sample0 = (Uint16) ((((Sint32) SDL_SwapBE16(src[0])) + ((Sint32) last_sample0)) >> 1);
4541  sample1 = (Uint16) ((((Sint32) SDL_SwapBE16(src[1])) + ((Sint32) last_sample1)) >> 1);
4542  sample2 = (Uint16) ((((Sint32) SDL_SwapBE16(src[2])) + ((Sint32) last_sample2)) >> 1);
4543  sample3 = (Uint16) ((((Sint32) SDL_SwapBE16(src[3])) + ((Sint32) last_sample3)) >> 1);
4544  sample4 = (Uint16) ((((Sint32) SDL_SwapBE16(src[4])) + ((Sint32) last_sample4)) >> 1);
4545  sample5 = (Uint16) ((((Sint32) SDL_SwapBE16(src[5])) + ((Sint32) last_sample5)) >> 1);
4546  last_sample0 = sample0;
4547  last_sample1 = sample1;
4548  last_sample2 = sample2;
4549  last_sample3 = sample3;
4550  last_sample4 = sample4;
4551  last_sample5 = sample5;
4552  eps -= srcsize;
4553  }
4554  }
4555  cvt->len_cvt = dstsize;
4556  if (cvt->filters[++cvt->filter_index]) {
4557  cvt->filters[cvt->filter_index] (cvt, format);
4558  }
4559 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_SwapBE16
#define SDL_SwapBE16(X)
Definition: SDL_endian.h:215
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
SDL_AudioCVT::rate_incr
double rate_incr
Definition: SDL_audio.h:205
Uint16
uint16_t Uint16
An unsigned 16-bit integer type.
Definition: SDL_stdinc.h:147
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Downsample_U16MSB_6c_x2 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 10995 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_SwapBE16, and SDLCALL.

10996 {
10997 #if DEBUG_CONVERT
10998  fprintf(stderr, "Downsample (x2) AUDIO_U16MSB, 6 channels.\n");
10999 #endif
11000 
11001  const int dstsize = cvt->len_cvt / 2;
11002  Uint16 *dst = (Uint16 *) cvt->buf;
11003  const Uint16 *src = (Uint16 *) cvt->buf;
11004  const Uint16 *target = (const Uint16 *) (cvt->buf + dstsize);
11005  Sint32 last_sample0 = (Sint32) SDL_SwapBE16(src[0]);
11006  Sint32 last_sample1 = (Sint32) SDL_SwapBE16(src[1]);
11007  Sint32 last_sample2 = (Sint32) SDL_SwapBE16(src[2]);
11008  Sint32 last_sample3 = (Sint32) SDL_SwapBE16(src[3]);
11009  Sint32 last_sample4 = (Sint32) SDL_SwapBE16(src[4]);
11010  Sint32 last_sample5 = (Sint32) SDL_SwapBE16(src[5]);
11011  while (dst < target) {
11012  const Sint32 sample0 = (Sint32) SDL_SwapBE16(src[0]);
11013  const Sint32 sample1 = (Sint32) SDL_SwapBE16(src[1]);
11014  const Sint32 sample2 = (Sint32) SDL_SwapBE16(src[2]);
11015  const Sint32 sample3 = (Sint32) SDL_SwapBE16(src[3]);
11016  const Sint32 sample4 = (Sint32) SDL_SwapBE16(src[4]);
11017  const Sint32 sample5 = (Sint32) SDL_SwapBE16(src[5]);
11018  src += 12;
11019  dst[0] = (Uint16) ((sample0 + last_sample0) >> 1);
11020  dst[1] = (Uint16) ((sample1 + last_sample1) >> 1);
11021  dst[2] = (Uint16) ((sample2 + last_sample2) >> 1);
11022  dst[3] = (Uint16) ((sample3 + last_sample3) >> 1);
11023  dst[4] = (Uint16) ((sample4 + last_sample4) >> 1);
11024  dst[5] = (Uint16) ((sample5 + last_sample5) >> 1);
11025  last_sample0 = sample0;
11026  last_sample1 = sample1;
11027  last_sample2 = sample2;
11028  last_sample3 = sample3;
11029  last_sample4 = sample4;
11030  last_sample5 = sample5;
11031  dst += 6;
11032  }
11033 
11034  cvt->len_cvt = dstsize;
11035  if (cvt->filters[++cvt->filter_index]) {
11036  cvt->filters[cvt->filter_index] (cvt, format);
11037  }
11038 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_SwapBE16
#define SDL_SwapBE16(X)
Definition: SDL_endian.h:215
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
Uint16
uint16_t Uint16
An unsigned 16-bit integer type.
Definition: SDL_stdinc.h:147
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Downsample_U16MSB_6c_x4 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 11105 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_SwapBE16, and SDLCALL.

11106 {
11107 #if DEBUG_CONVERT
11108  fprintf(stderr, "Downsample (x4) AUDIO_U16MSB, 6 channels.\n");
11109 #endif
11110 
11111  const int dstsize = cvt->len_cvt / 4;
11112  Uint16 *dst = (Uint16 *) cvt->buf;
11113  const Uint16 *src = (Uint16 *) cvt->buf;
11114  const Uint16 *target = (const Uint16 *) (cvt->buf + dstsize);
11115  Sint32 last_sample0 = (Sint32) SDL_SwapBE16(src[0]);
11116  Sint32 last_sample1 = (Sint32) SDL_SwapBE16(src[1]);
11117  Sint32 last_sample2 = (Sint32) SDL_SwapBE16(src[2]);
11118  Sint32 last_sample3 = (Sint32) SDL_SwapBE16(src[3]);
11119  Sint32 last_sample4 = (Sint32) SDL_SwapBE16(src[4]);
11120  Sint32 last_sample5 = (Sint32) SDL_SwapBE16(src[5]);
11121  while (dst < target) {
11122  const Sint32 sample0 = (Sint32) SDL_SwapBE16(src[0]);
11123  const Sint32 sample1 = (Sint32) SDL_SwapBE16(src[1]);
11124  const Sint32 sample2 = (Sint32) SDL_SwapBE16(src[2]);
11125  const Sint32 sample3 = (Sint32) SDL_SwapBE16(src[3]);
11126  const Sint32 sample4 = (Sint32) SDL_SwapBE16(src[4]);
11127  const Sint32 sample5 = (Sint32) SDL_SwapBE16(src[5]);
11128  src += 24;
11129  dst[0] = (Uint16) ((sample0 + last_sample0) >> 1);
11130  dst[1] = (Uint16) ((sample1 + last_sample1) >> 1);
11131  dst[2] = (Uint16) ((sample2 + last_sample2) >> 1);
11132  dst[3] = (Uint16) ((sample3 + last_sample3) >> 1);
11133  dst[4] = (Uint16) ((sample4 + last_sample4) >> 1);
11134  dst[5] = (Uint16) ((sample5 + last_sample5) >> 1);
11135  last_sample0 = sample0;
11136  last_sample1 = sample1;
11137  last_sample2 = sample2;
11138  last_sample3 = sample3;
11139  last_sample4 = sample4;
11140  last_sample5 = sample5;
11141  dst += 6;
11142  }
11143 
11144  cvt->len_cvt = dstsize;
11145  if (cvt->filters[++cvt->filter_index]) {
11146  cvt->filters[cvt->filter_index] (cvt, format);
11147  }
11148 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_SwapBE16
#define SDL_SwapBE16(X)
Definition: SDL_endian.h:215
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
Uint16
uint16_t Uint16
An unsigned 16-bit integer type.
Definition: SDL_stdinc.h:147
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Downsample_U16MSB_8c ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 4629 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_AudioCVT::rate_incr, SDL_SwapBE16, and SDLCALL.

4630 {
4631 #if DEBUG_CONVERT
4632  fprintf(stderr, "Downsample arbitrary (x%f) AUDIO_U16MSB, 8 channels.\n", cvt->rate_incr);
4633 #endif
4634 
4635  const int srcsize = cvt->len_cvt - 256;
4636  const int dstsize = (int) (((double)(cvt->len_cvt/16)) * cvt->rate_incr) * 16;
4637  register int eps = 0;
4638  Uint16 *dst = (Uint16 *) cvt->buf;
4639  const Uint16 *src = (Uint16 *) cvt->buf;
4640  const Uint16 *target = (const Uint16 *) (cvt->buf + dstsize);
4641  Uint16 sample0 = SDL_SwapBE16(src[0]);
4642  Uint16 sample1 = SDL_SwapBE16(src[1]);
4643  Uint16 sample2 = SDL_SwapBE16(src[2]);
4644  Uint16 sample3 = SDL_SwapBE16(src[3]);
4645  Uint16 sample4 = SDL_SwapBE16(src[4]);
4646  Uint16 sample5 = SDL_SwapBE16(src[5]);
4647  Uint16 sample6 = SDL_SwapBE16(src[6]);
4648  Uint16 sample7 = SDL_SwapBE16(src[7]);
4649  Uint16 last_sample0 = sample0;
4650  Uint16 last_sample1 = sample1;
4651  Uint16 last_sample2 = sample2;
4652  Uint16 last_sample3 = sample3;
4653  Uint16 last_sample4 = sample4;
4654  Uint16 last_sample5 = sample5;
4655  Uint16 last_sample6 = sample6;
4656  Uint16 last_sample7 = sample7;
4657  while (dst < target) {
4658  src += 8;
4659  eps += dstsize;
4660  if ((eps << 1) >= srcsize) {
4661  dst[0] = SDL_SwapBE16(sample0);
4662  dst[1] = SDL_SwapBE16(sample1);
4663  dst[2] = SDL_SwapBE16(sample2);
4664  dst[3] = SDL_SwapBE16(sample3);
4665  dst[4] = SDL_SwapBE16(sample4);
4666  dst[5] = SDL_SwapBE16(sample5);
4667  dst[6] = SDL_SwapBE16(sample6);
4668  dst[7] = SDL_SwapBE16(sample7);
4669  dst += 8;
4670  sample0 = (Uint16) ((((Sint32) SDL_SwapBE16(src[0])) + ((Sint32) last_sample0)) >> 1);
4671  sample1 = (Uint16) ((((Sint32) SDL_SwapBE16(src[1])) + ((Sint32) last_sample1)) >> 1);
4672  sample2 = (Uint16) ((((Sint32) SDL_SwapBE16(src[2])) + ((Sint32) last_sample2)) >> 1);
4673  sample3 = (Uint16) ((((Sint32) SDL_SwapBE16(src[3])) + ((Sint32) last_sample3)) >> 1);
4674  sample4 = (Uint16) ((((Sint32) SDL_SwapBE16(src[4])) + ((Sint32) last_sample4)) >> 1);
4675  sample5 = (Uint16) ((((Sint32) SDL_SwapBE16(src[5])) + ((Sint32) last_sample5)) >> 1);
4676  sample6 = (Uint16) ((((Sint32) SDL_SwapBE16(src[6])) + ((Sint32) last_sample6)) >> 1);
4677  sample7 = (Uint16) ((((Sint32) SDL_SwapBE16(src[7])) + ((Sint32) last_sample7)) >> 1);
4678  last_sample0 = sample0;
4679  last_sample1 = sample1;
4680  last_sample2 = sample2;
4681  last_sample3 = sample3;
4682  last_sample4 = sample4;
4683  last_sample5 = sample5;
4684  last_sample6 = sample6;
4685  last_sample7 = sample7;
4686  eps -= srcsize;
4687  }
4688  }
4689  cvt->len_cvt = dstsize;
4690  if (cvt->filters[++cvt->filter_index]) {
4691  cvt->filters[cvt->filter_index] (cvt, format);
4692  }
4693 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_SwapBE16
#define SDL_SwapBE16(X)
Definition: SDL_endian.h:215
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
SDL_AudioCVT::rate_incr
double rate_incr
Definition: SDL_audio.h:205
Uint16
uint16_t Uint16
An unsigned 16-bit integer type.
Definition: SDL_stdinc.h:147
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Downsample_U16MSB_8c_x2 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 11213 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_SwapBE16, and SDLCALL.

11214 {
11215 #if DEBUG_CONVERT
11216  fprintf(stderr, "Downsample (x2) AUDIO_U16MSB, 8 channels.\n");
11217 #endif
11218 
11219  const int dstsize = cvt->len_cvt / 2;
11220  Uint16 *dst = (Uint16 *) cvt->buf;
11221  const Uint16 *src = (Uint16 *) cvt->buf;
11222  const Uint16 *target = (const Uint16 *) (cvt->buf + dstsize);
11223  Sint32 last_sample0 = (Sint32) SDL_SwapBE16(src[0]);
11224  Sint32 last_sample1 = (Sint32) SDL_SwapBE16(src[1]);
11225  Sint32 last_sample2 = (Sint32) SDL_SwapBE16(src[2]);
11226  Sint32 last_sample3 = (Sint32) SDL_SwapBE16(src[3]);
11227  Sint32 last_sample4 = (Sint32) SDL_SwapBE16(src[4]);
11228  Sint32 last_sample5 = (Sint32) SDL_SwapBE16(src[5]);
11229  Sint32 last_sample6 = (Sint32) SDL_SwapBE16(src[6]);
11230  Sint32 last_sample7 = (Sint32) SDL_SwapBE16(src[7]);
11231  while (dst < target) {
11232  const Sint32 sample0 = (Sint32) SDL_SwapBE16(src[0]);
11233  const Sint32 sample1 = (Sint32) SDL_SwapBE16(src[1]);
11234  const Sint32 sample2 = (Sint32) SDL_SwapBE16(src[2]);
11235  const Sint32 sample3 = (Sint32) SDL_SwapBE16(src[3]);
11236  const Sint32 sample4 = (Sint32) SDL_SwapBE16(src[4]);
11237  const Sint32 sample5 = (Sint32) SDL_SwapBE16(src[5]);
11238  const Sint32 sample6 = (Sint32) SDL_SwapBE16(src[6]);
11239  const Sint32 sample7 = (Sint32) SDL_SwapBE16(src[7]);
11240  src += 16;
11241  dst[0] = (Uint16) ((sample0 + last_sample0) >> 1);
11242  dst[1] = (Uint16) ((sample1 + last_sample1) >> 1);
11243  dst[2] = (Uint16) ((sample2 + last_sample2) >> 1);
11244  dst[3] = (Uint16) ((sample3 + last_sample3) >> 1);
11245  dst[4] = (Uint16) ((sample4 + last_sample4) >> 1);
11246  dst[5] = (Uint16) ((sample5 + last_sample5) >> 1);
11247  dst[6] = (Uint16) ((sample6 + last_sample6) >> 1);
11248  dst[7] = (Uint16) ((sample7 + last_sample7) >> 1);
11249  last_sample0 = sample0;
11250  last_sample1 = sample1;
11251  last_sample2 = sample2;
11252  last_sample3 = sample3;
11253  last_sample4 = sample4;
11254  last_sample5 = sample5;
11255  last_sample6 = sample6;
11256  last_sample7 = sample7;
11257  dst += 8;
11258  }
11259 
11260  cvt->len_cvt = dstsize;
11261  if (cvt->filters[++cvt->filter_index]) {
11262  cvt->filters[cvt->filter_index] (cvt, format);
11263  }
11264 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_SwapBE16
#define SDL_SwapBE16(X)
Definition: SDL_endian.h:215
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
Uint16
uint16_t Uint16
An unsigned 16-bit integer type.
Definition: SDL_stdinc.h:147
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Downsample_U16MSB_8c_x4 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 11345 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_SwapBE16, and SDLCALL.

11346 {
11347 #if DEBUG_CONVERT
11348  fprintf(stderr, "Downsample (x4) AUDIO_U16MSB, 8 channels.\n");
11349 #endif
11350 
11351  const int dstsize = cvt->len_cvt / 4;
11352  Uint16 *dst = (Uint16 *) cvt->buf;
11353  const Uint16 *src = (Uint16 *) cvt->buf;
11354  const Uint16 *target = (const Uint16 *) (cvt->buf + dstsize);
11355  Sint32 last_sample0 = (Sint32) SDL_SwapBE16(src[0]);
11356  Sint32 last_sample1 = (Sint32) SDL_SwapBE16(src[1]);
11357  Sint32 last_sample2 = (Sint32) SDL_SwapBE16(src[2]);
11358  Sint32 last_sample3 = (Sint32) SDL_SwapBE16(src[3]);
11359  Sint32 last_sample4 = (Sint32) SDL_SwapBE16(src[4]);
11360  Sint32 last_sample5 = (Sint32) SDL_SwapBE16(src[5]);
11361  Sint32 last_sample6 = (Sint32) SDL_SwapBE16(src[6]);
11362  Sint32 last_sample7 = (Sint32) SDL_SwapBE16(src[7]);
11363  while (dst < target) {
11364  const Sint32 sample0 = (Sint32) SDL_SwapBE16(src[0]);
11365  const Sint32 sample1 = (Sint32) SDL_SwapBE16(src[1]);
11366  const Sint32 sample2 = (Sint32) SDL_SwapBE16(src[2]);
11367  const Sint32 sample3 = (Sint32) SDL_SwapBE16(src[3]);
11368  const Sint32 sample4 = (Sint32) SDL_SwapBE16(src[4]);
11369  const Sint32 sample5 = (Sint32) SDL_SwapBE16(src[5]);
11370  const Sint32 sample6 = (Sint32) SDL_SwapBE16(src[6]);
11371  const Sint32 sample7 = (Sint32) SDL_SwapBE16(src[7]);
11372  src += 32;
11373  dst[0] = (Uint16) ((sample0 + last_sample0) >> 1);
11374  dst[1] = (Uint16) ((sample1 + last_sample1) >> 1);
11375  dst[2] = (Uint16) ((sample2 + last_sample2) >> 1);
11376  dst[3] = (Uint16) ((sample3 + last_sample3) >> 1);
11377  dst[4] = (Uint16) ((sample4 + last_sample4) >> 1);
11378  dst[5] = (Uint16) ((sample5 + last_sample5) >> 1);
11379  dst[6] = (Uint16) ((sample6 + last_sample6) >> 1);
11380  dst[7] = (Uint16) ((sample7 + last_sample7) >> 1);
11381  last_sample0 = sample0;
11382  last_sample1 = sample1;
11383  last_sample2 = sample2;
11384  last_sample3 = sample3;
11385  last_sample4 = sample4;
11386  last_sample5 = sample5;
11387  last_sample6 = sample6;
11388  last_sample7 = sample7;
11389  dst += 8;
11390  }
11391 
11392  cvt->len_cvt = dstsize;
11393  if (cvt->filters[++cvt->filter_index]) {
11394  cvt->filters[cvt->filter_index] (cvt, format);
11395  }
11396 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_SwapBE16
#define SDL_SwapBE16(X)
Definition: SDL_endian.h:215
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
Uint16
uint16_t Uint16
An unsigned 16-bit integer type.
Definition: SDL_stdinc.h:147
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Downsample_U8_1c ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 2328 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_AudioCVT::rate_incr, and SDLCALL.

2329 {
2330 #if DEBUG_CONVERT
2331  fprintf(stderr, "Downsample arbitrary (x%f) AUDIO_U8, 1 channels.\n", cvt->rate_incr);
2332 #endif
2333 
2334  const int srcsize = cvt->len_cvt - 16;
2335  const int dstsize = (int) (((double)(cvt->len_cvt/1)) * cvt->rate_incr) * 1;
2336  register int eps = 0;
2337  Uint8 *dst = (Uint8 *) cvt->buf;
2338  const Uint8 *src = (Uint8 *) cvt->buf;
2339  const Uint8 *target = (const Uint8 *) (cvt->buf + dstsize);
2340  Uint8 sample0 = src[0];
2341  Uint8 last_sample0 = sample0;
2342  while (dst < target) {
2343  src++;
2344  eps += dstsize;
2345  if ((eps << 1) >= srcsize) {
2346  dst[0] = sample0;
2347  dst++;
2348  sample0 = (Uint8) ((((Sint16) src[0]) + ((Sint16) last_sample0)) >> 1);
2349  last_sample0 = sample0;
2350  eps -= srcsize;
2351  }
2352  }
2353  cvt->len_cvt = dstsize;
2354  if (cvt->filters[++cvt->filter_index]) {
2355  cvt->filters[cvt->filter_index] (cvt, format);
2356  }
2357 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
Uint8
uint8_t Uint8
An unsigned 8-bit integer type.
Definition: SDL_stdinc.h:139
target
GLenum target
Definition: SDL_opengl_glext.h:1551
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
SDL_AudioCVT::rate_incr
double rate_incr
Definition: SDL_audio.h:205
src
GLenum src
Definition: SDL_opengl_glext.h:1737
Sint16
int16_t Sint16
A signed 16-bit integer type.
Definition: SDL_stdinc.h:143
static void SDL_Downsample_U8_1c_x2 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 7126 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, and SDLCALL.

7127 {
7128 #if DEBUG_CONVERT
7129  fprintf(stderr, "Downsample (x2) AUDIO_U8, 1 channels.\n");
7130 #endif
7131 
7132  const int dstsize = cvt->len_cvt / 2;
7133  Uint8 *dst = (Uint8 *) cvt->buf;
7134  const Uint8 *src = (Uint8 *) cvt->buf;
7135  const Uint8 *target = (const Uint8 *) (cvt->buf + dstsize);
7136  Sint16 last_sample0 = (Sint16) src[0];
7137  while (dst < target) {
7138  const Sint16 sample0 = (Sint16) src[0];
7139  src += 2;
7140  dst[0] = (Uint8) ((sample0 + last_sample0) >> 1);
7141  last_sample0 = sample0;
7142  dst++;
7143  }
7144 
7145  cvt->len_cvt = dstsize;
7146  if (cvt->filters[++cvt->filter_index]) {
7147  cvt->filters[cvt->filter_index] (cvt, format);
7148  }
7149 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
Uint8
uint8_t Uint8
An unsigned 8-bit integer type.
Definition: SDL_stdinc.h:139
target
GLenum target
Definition: SDL_opengl_glext.h:1551
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
src
GLenum src
Definition: SDL_opengl_glext.h:1737
Sint16
int16_t Sint16
A signed 16-bit integer type.
Definition: SDL_stdinc.h:143
static void SDL_Downsample_U8_1c_x4 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 7181 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, and SDLCALL.

7182 {
7183 #if DEBUG_CONVERT
7184  fprintf(stderr, "Downsample (x4) AUDIO_U8, 1 channels.\n");
7185 #endif
7186 
7187  const int dstsize = cvt->len_cvt / 4;
7188  Uint8 *dst = (Uint8 *) cvt->buf;
7189  const Uint8 *src = (Uint8 *) cvt->buf;
7190  const Uint8 *target = (const Uint8 *) (cvt->buf + dstsize);
7191  Sint16 last_sample0 = (Sint16) src[0];
7192  while (dst < target) {
7193  const Sint16 sample0 = (Sint16) src[0];
7194  src += 4;
7195  dst[0] = (Uint8) ((sample0 + last_sample0) >> 1);
7196  last_sample0 = sample0;
7197  dst++;
7198  }
7199 
7200  cvt->len_cvt = dstsize;
7201  if (cvt->filters[++cvt->filter_index]) {
7202  cvt->filters[cvt->filter_index] (cvt, format);
7203  }
7204 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
Uint8
uint8_t Uint8
An unsigned 8-bit integer type.
Definition: SDL_stdinc.h:139
target
GLenum target
Definition: SDL_opengl_glext.h:1551
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
src
GLenum src
Definition: SDL_opengl_glext.h:1737
Sint16
int16_t Sint16
A signed 16-bit integer type.
Definition: SDL_stdinc.h:143
static void SDL_Downsample_U8_2c ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 2397 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_AudioCVT::rate_incr, and SDLCALL.

2398 {
2399 #if DEBUG_CONVERT
2400  fprintf(stderr, "Downsample arbitrary (x%f) AUDIO_U8, 2 channels.\n", cvt->rate_incr);
2401 #endif
2402 
2403  const int srcsize = cvt->len_cvt - 32;
2404  const int dstsize = (int) (((double)(cvt->len_cvt/2)) * cvt->rate_incr) * 2;
2405  register int eps = 0;
2406  Uint8 *dst = (Uint8 *) cvt->buf;
2407  const Uint8 *src = (Uint8 *) cvt->buf;
2408  const Uint8 *target = (const Uint8 *) (cvt->buf + dstsize);
2409  Uint8 sample0 = src[0];
2410  Uint8 sample1 = src[1];
2411  Uint8 last_sample0 = sample0;
2412  Uint8 last_sample1 = sample1;
2413  while (dst < target) {
2414  src += 2;
2415  eps += dstsize;
2416  if ((eps << 1) >= srcsize) {
2417  dst[0] = sample0;
2418  dst[1] = sample1;
2419  dst += 2;
2420  sample0 = (Uint8) ((((Sint16) src[0]) + ((Sint16) last_sample0)) >> 1);
2421  sample1 = (Uint8) ((((Sint16) src[1]) + ((Sint16) last_sample1)) >> 1);
2422  last_sample0 = sample0;
2423  last_sample1 = sample1;
2424  eps -= srcsize;
2425  }
2426  }
2427  cvt->len_cvt = dstsize;
2428  if (cvt->filters[++cvt->filter_index]) {
2429  cvt->filters[cvt->filter_index] (cvt, format);
2430  }
2431 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
Uint8
uint8_t Uint8
An unsigned 8-bit integer type.
Definition: SDL_stdinc.h:139
target
GLenum target
Definition: SDL_opengl_glext.h:1551
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
SDL_AudioCVT::rate_incr
double rate_incr
Definition: SDL_audio.h:205
src
GLenum src
Definition: SDL_opengl_glext.h:1737
Sint16
int16_t Sint16
A signed 16-bit integer type.
Definition: SDL_stdinc.h:143
static void SDL_Downsample_U8_2c_x2 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 7239 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, and SDLCALL.

7240 {
7241 #if DEBUG_CONVERT
7242  fprintf(stderr, "Downsample (x2) AUDIO_U8, 2 channels.\n");
7243 #endif
7244 
7245  const int dstsize = cvt->len_cvt / 2;
7246  Uint8 *dst = (Uint8 *) cvt->buf;
7247  const Uint8 *src = (Uint8 *) cvt->buf;
7248  const Uint8 *target = (const Uint8 *) (cvt->buf + dstsize);
7249  Sint16 last_sample0 = (Sint16) src[0];
7250  Sint16 last_sample1 = (Sint16) src[1];
7251  while (dst < target) {
7252  const Sint16 sample0 = (Sint16) src[0];
7253  const Sint16 sample1 = (Sint16) src[1];
7254  src += 4;
7255  dst[0] = (Uint8) ((sample0 + last_sample0) >> 1);
7256  dst[1] = (Uint8) ((sample1 + last_sample1) >> 1);
7257  last_sample0 = sample0;
7258  last_sample1 = sample1;
7259  dst += 2;
7260  }
7261 
7262  cvt->len_cvt = dstsize;
7263  if (cvt->filters[++cvt->filter_index]) {
7264  cvt->filters[cvt->filter_index] (cvt, format);
7265  }
7266 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
Uint8
uint8_t Uint8
An unsigned 8-bit integer type.
Definition: SDL_stdinc.h:139
target
GLenum target
Definition: SDL_opengl_glext.h:1551
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
src
GLenum src
Definition: SDL_opengl_glext.h:1737
Sint16
int16_t Sint16
A signed 16-bit integer type.
Definition: SDL_stdinc.h:143
static void SDL_Downsample_U8_2c_x4 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 7305 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, and SDLCALL.

7306 {
7307 #if DEBUG_CONVERT
7308  fprintf(stderr, "Downsample (x4) AUDIO_U8, 2 channels.\n");
7309 #endif
7310 
7311  const int dstsize = cvt->len_cvt / 4;
7312  Uint8 *dst = (Uint8 *) cvt->buf;
7313  const Uint8 *src = (Uint8 *) cvt->buf;
7314  const Uint8 *target = (const Uint8 *) (cvt->buf + dstsize);
7315  Sint16 last_sample0 = (Sint16) src[0];
7316  Sint16 last_sample1 = (Sint16) src[1];
7317  while (dst < target) {
7318  const Sint16 sample0 = (Sint16) src[0];
7319  const Sint16 sample1 = (Sint16) src[1];
7320  src += 8;
7321  dst[0] = (Uint8) ((sample0 + last_sample0) >> 1);
7322  dst[1] = (Uint8) ((sample1 + last_sample1) >> 1);
7323  last_sample0 = sample0;
7324  last_sample1 = sample1;
7325  dst += 2;
7326  }
7327 
7328  cvt->len_cvt = dstsize;
7329  if (cvt->filters[++cvt->filter_index]) {
7330  cvt->filters[cvt->filter_index] (cvt, format);
7331  }
7332 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
Uint8
uint8_t Uint8
An unsigned 8-bit integer type.
Definition: SDL_stdinc.h:139
target
GLenum target
Definition: SDL_opengl_glext.h:1551
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
src
GLenum src
Definition: SDL_opengl_glext.h:1737
Sint16
int16_t Sint16
A signed 16-bit integer type.
Definition: SDL_stdinc.h:143
static void SDL_Downsample_U8_4c ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 2481 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_AudioCVT::rate_incr, and SDLCALL.

2482 {
2483 #if DEBUG_CONVERT
2484  fprintf(stderr, "Downsample arbitrary (x%f) AUDIO_U8, 4 channels.\n", cvt->rate_incr);
2485 #endif
2486 
2487  const int srcsize = cvt->len_cvt - 64;
2488  const int dstsize = (int) (((double)(cvt->len_cvt/4)) * cvt->rate_incr) * 4;
2489  register int eps = 0;
2490  Uint8 *dst = (Uint8 *) cvt->buf;
2491  const Uint8 *src = (Uint8 *) cvt->buf;
2492  const Uint8 *target = (const Uint8 *) (cvt->buf + dstsize);
2493  Uint8 sample0 = src[0];
2494  Uint8 sample1 = src[1];
2495  Uint8 sample2 = src[2];
2496  Uint8 sample3 = src[3];
2497  Uint8 last_sample0 = sample0;
2498  Uint8 last_sample1 = sample1;
2499  Uint8 last_sample2 = sample2;
2500  Uint8 last_sample3 = sample3;
2501  while (dst < target) {
2502  src += 4;
2503  eps += dstsize;
2504  if ((eps << 1) >= srcsize) {
2505  dst[0] = sample0;
2506  dst[1] = sample1;
2507  dst[2] = sample2;
2508  dst[3] = sample3;
2509  dst += 4;
2510  sample0 = (Uint8) ((((Sint16) src[0]) + ((Sint16) last_sample0)) >> 1);
2511  sample1 = (Uint8) ((((Sint16) src[1]) + ((Sint16) last_sample1)) >> 1);
2512  sample2 = (Uint8) ((((Sint16) src[2]) + ((Sint16) last_sample2)) >> 1);
2513  sample3 = (Uint8) ((((Sint16) src[3]) + ((Sint16) last_sample3)) >> 1);
2514  last_sample0 = sample0;
2515  last_sample1 = sample1;
2516  last_sample2 = sample2;
2517  last_sample3 = sample3;
2518  eps -= srcsize;
2519  }
2520  }
2521  cvt->len_cvt = dstsize;
2522  if (cvt->filters[++cvt->filter_index]) {
2523  cvt->filters[cvt->filter_index] (cvt, format);
2524  }
2525 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
Uint8
uint8_t Uint8
An unsigned 8-bit integer type.
Definition: SDL_stdinc.h:139
target
GLenum target
Definition: SDL_opengl_glext.h:1551
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
SDL_AudioCVT::rate_incr
double rate_incr
Definition: SDL_audio.h:205
src
GLenum src
Definition: SDL_opengl_glext.h:1737
Sint16
int16_t Sint16
A signed 16-bit integer type.
Definition: SDL_stdinc.h:143
static void SDL_Downsample_U8_4c_x2 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 7377 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, and SDLCALL.

7378 {
7379 #if DEBUG_CONVERT
7380  fprintf(stderr, "Downsample (x2) AUDIO_U8, 4 channels.\n");
7381 #endif
7382 
7383  const int dstsize = cvt->len_cvt / 2;
7384  Uint8 *dst = (Uint8 *) cvt->buf;
7385  const Uint8 *src = (Uint8 *) cvt->buf;
7386  const Uint8 *target = (const Uint8 *) (cvt->buf + dstsize);
7387  Sint16 last_sample0 = (Sint16) src[0];
7388  Sint16 last_sample1 = (Sint16) src[1];
7389  Sint16 last_sample2 = (Sint16) src[2];
7390  Sint16 last_sample3 = (Sint16) src[3];
7391  while (dst < target) {
7392  const Sint16 sample0 = (Sint16) src[0];
7393  const Sint16 sample1 = (Sint16) src[1];
7394  const Sint16 sample2 = (Sint16) src[2];
7395  const Sint16 sample3 = (Sint16) src[3];
7396  src += 8;
7397  dst[0] = (Uint8) ((sample0 + last_sample0) >> 1);
7398  dst[1] = (Uint8) ((sample1 + last_sample1) >> 1);
7399  dst[2] = (Uint8) ((sample2 + last_sample2) >> 1);
7400  dst[3] = (Uint8) ((sample3 + last_sample3) >> 1);
7401  last_sample0 = sample0;
7402  last_sample1 = sample1;
7403  last_sample2 = sample2;
7404  last_sample3 = sample3;
7405  dst += 4;
7406  }
7407 
7408  cvt->len_cvt = dstsize;
7409  if (cvt->filters[++cvt->filter_index]) {
7410  cvt->filters[cvt->filter_index] (cvt, format);
7411  }
7412 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
Uint8
uint8_t Uint8
An unsigned 8-bit integer type.
Definition: SDL_stdinc.h:139
target
GLenum target
Definition: SDL_opengl_glext.h:1551
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
src
GLenum src
Definition: SDL_opengl_glext.h:1737
Sint16
int16_t Sint16
A signed 16-bit integer type.
Definition: SDL_stdinc.h:143
static void SDL_Downsample_U8_4c_x4 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 7465 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, and SDLCALL.

7466 {
7467 #if DEBUG_CONVERT
7468  fprintf(stderr, "Downsample (x4) AUDIO_U8, 4 channels.\n");
7469 #endif
7470 
7471  const int dstsize = cvt->len_cvt / 4;
7472  Uint8 *dst = (Uint8 *) cvt->buf;
7473  const Uint8 *src = (Uint8 *) cvt->buf;
7474  const Uint8 *target = (const Uint8 *) (cvt->buf + dstsize);
7475  Sint16 last_sample0 = (Sint16) src[0];
7476  Sint16 last_sample1 = (Sint16) src[1];
7477  Sint16 last_sample2 = (Sint16) src[2];
7478  Sint16 last_sample3 = (Sint16) src[3];
7479  while (dst < target) {
7480  const Sint16 sample0 = (Sint16) src[0];
7481  const Sint16 sample1 = (Sint16) src[1];
7482  const Sint16 sample2 = (Sint16) src[2];
7483  const Sint16 sample3 = (Sint16) src[3];
7484  src += 16;
7485  dst[0] = (Uint8) ((sample0 + last_sample0) >> 1);
7486  dst[1] = (Uint8) ((sample1 + last_sample1) >> 1);
7487  dst[2] = (Uint8) ((sample2 + last_sample2) >> 1);
7488  dst[3] = (Uint8) ((sample3 + last_sample3) >> 1);
7489  last_sample0 = sample0;
7490  last_sample1 = sample1;
7491  last_sample2 = sample2;
7492  last_sample3 = sample3;
7493  dst += 4;
7494  }
7495 
7496  cvt->len_cvt = dstsize;
7497  if (cvt->filters[++cvt->filter_index]) {
7498  cvt->filters[cvt->filter_index] (cvt, format);
7499  }
7500 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
Uint8
uint8_t Uint8
An unsigned 8-bit integer type.
Definition: SDL_stdinc.h:139
target
GLenum target
Definition: SDL_opengl_glext.h:1551
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
src
GLenum src
Definition: SDL_opengl_glext.h:1737
Sint16
int16_t Sint16
A signed 16-bit integer type.
Definition: SDL_stdinc.h:143
static void SDL_Downsample_U8_6c ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 2585 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_AudioCVT::rate_incr, and SDLCALL.

2586 {
2587 #if DEBUG_CONVERT
2588  fprintf(stderr, "Downsample arbitrary (x%f) AUDIO_U8, 6 channels.\n", cvt->rate_incr);
2589 #endif
2590 
2591  const int srcsize = cvt->len_cvt - 96;
2592  const int dstsize = (int) (((double)(cvt->len_cvt/6)) * cvt->rate_incr) * 6;
2593  register int eps = 0;
2594  Uint8 *dst = (Uint8 *) cvt->buf;
2595  const Uint8 *src = (Uint8 *) cvt->buf;
2596  const Uint8 *target = (const Uint8 *) (cvt->buf + dstsize);
2597  Uint8 sample0 = src[0];
2598  Uint8 sample1 = src[1];
2599  Uint8 sample2 = src[2];
2600  Uint8 sample3 = src[3];
2601  Uint8 sample4 = src[4];
2602  Uint8 sample5 = src[5];
2603  Uint8 last_sample0 = sample0;
2604  Uint8 last_sample1 = sample1;
2605  Uint8 last_sample2 = sample2;
2606  Uint8 last_sample3 = sample3;
2607  Uint8 last_sample4 = sample4;
2608  Uint8 last_sample5 = sample5;
2609  while (dst < target) {
2610  src += 6;
2611  eps += dstsize;
2612  if ((eps << 1) >= srcsize) {
2613  dst[0] = sample0;
2614  dst[1] = sample1;
2615  dst[2] = sample2;
2616  dst[3] = sample3;
2617  dst[4] = sample4;
2618  dst[5] = sample5;
2619  dst += 6;
2620  sample0 = (Uint8) ((((Sint16) src[0]) + ((Sint16) last_sample0)) >> 1);
2621  sample1 = (Uint8) ((((Sint16) src[1]) + ((Sint16) last_sample1)) >> 1);
2622  sample2 = (Uint8) ((((Sint16) src[2]) + ((Sint16) last_sample2)) >> 1);
2623  sample3 = (Uint8) ((((Sint16) src[3]) + ((Sint16) last_sample3)) >> 1);
2624  sample4 = (Uint8) ((((Sint16) src[4]) + ((Sint16) last_sample4)) >> 1);
2625  sample5 = (Uint8) ((((Sint16) src[5]) + ((Sint16) last_sample5)) >> 1);
2626  last_sample0 = sample0;
2627  last_sample1 = sample1;
2628  last_sample2 = sample2;
2629  last_sample3 = sample3;
2630  last_sample4 = sample4;
2631  last_sample5 = sample5;
2632  eps -= srcsize;
2633  }
2634  }
2635  cvt->len_cvt = dstsize;
2636  if (cvt->filters[++cvt->filter_index]) {
2637  cvt->filters[cvt->filter_index] (cvt, format);
2638  }
2639 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
Uint8
uint8_t Uint8
An unsigned 8-bit integer type.
Definition: SDL_stdinc.h:139
target
GLenum target
Definition: SDL_opengl_glext.h:1551
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
SDL_AudioCVT::rate_incr
double rate_incr
Definition: SDL_audio.h:205
src
GLenum src
Definition: SDL_opengl_glext.h:1737
Sint16
int16_t Sint16
A signed 16-bit integer type.
Definition: SDL_stdinc.h:143
static void SDL_Downsample_U8_6c_x2 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 7555 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, and SDLCALL.

7556 {
7557 #if DEBUG_CONVERT
7558  fprintf(stderr, "Downsample (x2) AUDIO_U8, 6 channels.\n");
7559 #endif
7560 
7561  const int dstsize = cvt->len_cvt / 2;
7562  Uint8 *dst = (Uint8 *) cvt->buf;
7563  const Uint8 *src = (Uint8 *) cvt->buf;
7564  const Uint8 *target = (const Uint8 *) (cvt->buf + dstsize);
7565  Sint16 last_sample0 = (Sint16) src[0];
7566  Sint16 last_sample1 = (Sint16) src[1];
7567  Sint16 last_sample2 = (Sint16) src[2];
7568  Sint16 last_sample3 = (Sint16) src[3];
7569  Sint16 last_sample4 = (Sint16) src[4];
7570  Sint16 last_sample5 = (Sint16) src[5];
7571  while (dst < target) {
7572  const Sint16 sample0 = (Sint16) src[0];
7573  const Sint16 sample1 = (Sint16) src[1];
7574  const Sint16 sample2 = (Sint16) src[2];
7575  const Sint16 sample3 = (Sint16) src[3];
7576  const Sint16 sample4 = (Sint16) src[4];
7577  const Sint16 sample5 = (Sint16) src[5];
7578  src += 12;
7579  dst[0] = (Uint8) ((sample0 + last_sample0) >> 1);
7580  dst[1] = (Uint8) ((sample1 + last_sample1) >> 1);
7581  dst[2] = (Uint8) ((sample2 + last_sample2) >> 1);
7582  dst[3] = (Uint8) ((sample3 + last_sample3) >> 1);
7583  dst[4] = (Uint8) ((sample4 + last_sample4) >> 1);
7584  dst[5] = (Uint8) ((sample5 + last_sample5) >> 1);
7585  last_sample0 = sample0;
7586  last_sample1 = sample1;
7587  last_sample2 = sample2;
7588  last_sample3 = sample3;
7589  last_sample4 = sample4;
7590  last_sample5 = sample5;
7591  dst += 6;
7592  }
7593 
7594  cvt->len_cvt = dstsize;
7595  if (cvt->filters[++cvt->filter_index]) {
7596  cvt->filters[cvt->filter_index] (cvt, format);
7597  }
7598 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
Uint8
uint8_t Uint8
An unsigned 8-bit integer type.
Definition: SDL_stdinc.h:139
target
GLenum target
Definition: SDL_opengl_glext.h:1551
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
src
GLenum src
Definition: SDL_opengl_glext.h:1737
Sint16
int16_t Sint16
A signed 16-bit integer type.
Definition: SDL_stdinc.h:143
static void SDL_Downsample_U8_6c_x4 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 7665 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, and SDLCALL.

7666 {
7667 #if DEBUG_CONVERT
7668  fprintf(stderr, "Downsample (x4) AUDIO_U8, 6 channels.\n");
7669 #endif
7670 
7671  const int dstsize = cvt->len_cvt / 4;
7672  Uint8 *dst = (Uint8 *) cvt->buf;
7673  const Uint8 *src = (Uint8 *) cvt->buf;
7674  const Uint8 *target = (const Uint8 *) (cvt->buf + dstsize);
7675  Sint16 last_sample0 = (Sint16) src[0];
7676  Sint16 last_sample1 = (Sint16) src[1];
7677  Sint16 last_sample2 = (Sint16) src[2];
7678  Sint16 last_sample3 = (Sint16) src[3];
7679  Sint16 last_sample4 = (Sint16) src[4];
7680  Sint16 last_sample5 = (Sint16) src[5];
7681  while (dst < target) {
7682  const Sint16 sample0 = (Sint16) src[0];
7683  const Sint16 sample1 = (Sint16) src[1];
7684  const Sint16 sample2 = (Sint16) src[2];
7685  const Sint16 sample3 = (Sint16) src[3];
7686  const Sint16 sample4 = (Sint16) src[4];
7687  const Sint16 sample5 = (Sint16) src[5];
7688  src += 24;
7689  dst[0] = (Uint8) ((sample0 + last_sample0) >> 1);
7690  dst[1] = (Uint8) ((sample1 + last_sample1) >> 1);
7691  dst[2] = (Uint8) ((sample2 + last_sample2) >> 1);
7692  dst[3] = (Uint8) ((sample3 + last_sample3) >> 1);
7693  dst[4] = (Uint8) ((sample4 + last_sample4) >> 1);
7694  dst[5] = (Uint8) ((sample5 + last_sample5) >> 1);
7695  last_sample0 = sample0;
7696  last_sample1 = sample1;
7697  last_sample2 = sample2;
7698  last_sample3 = sample3;
7699  last_sample4 = sample4;
7700  last_sample5 = sample5;
7701  dst += 6;
7702  }
7703 
7704  cvt->len_cvt = dstsize;
7705  if (cvt->filters[++cvt->filter_index]) {
7706  cvt->filters[cvt->filter_index] (cvt, format);
7707  }
7708 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
Uint8
uint8_t Uint8
An unsigned 8-bit integer type.
Definition: SDL_stdinc.h:139
target
GLenum target
Definition: SDL_opengl_glext.h:1551
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
src
GLenum src
Definition: SDL_opengl_glext.h:1737
Sint16
int16_t Sint16
A signed 16-bit integer type.
Definition: SDL_stdinc.h:143
static void SDL_Downsample_U8_8c ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 2709 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_AudioCVT::rate_incr, and SDLCALL.

2710 {
2711 #if DEBUG_CONVERT
2712  fprintf(stderr, "Downsample arbitrary (x%f) AUDIO_U8, 8 channels.\n", cvt->rate_incr);
2713 #endif
2714 
2715  const int srcsize = cvt->len_cvt - 128;
2716  const int dstsize = (int) (((double)(cvt->len_cvt/8)) * cvt->rate_incr) * 8;
2717  register int eps = 0;
2718  Uint8 *dst = (Uint8 *) cvt->buf;
2719  const Uint8 *src = (Uint8 *) cvt->buf;
2720  const Uint8 *target = (const Uint8 *) (cvt->buf + dstsize);
2721  Uint8 sample0 = src[0];
2722  Uint8 sample1 = src[1];
2723  Uint8 sample2 = src[2];
2724  Uint8 sample3 = src[3];
2725  Uint8 sample4 = src[4];
2726  Uint8 sample5 = src[5];
2727  Uint8 sample6 = src[6];
2728  Uint8 sample7 = src[7];
2729  Uint8 last_sample0 = sample0;
2730  Uint8 last_sample1 = sample1;
2731  Uint8 last_sample2 = sample2;
2732  Uint8 last_sample3 = sample3;
2733  Uint8 last_sample4 = sample4;
2734  Uint8 last_sample5 = sample5;
2735  Uint8 last_sample6 = sample6;
2736  Uint8 last_sample7 = sample7;
2737  while (dst < target) {
2738  src += 8;
2739  eps += dstsize;
2740  if ((eps << 1) >= srcsize) {
2741  dst[0] = sample0;
2742  dst[1] = sample1;
2743  dst[2] = sample2;
2744  dst[3] = sample3;
2745  dst[4] = sample4;
2746  dst[5] = sample5;
2747  dst[6] = sample6;
2748  dst[7] = sample7;
2749  dst += 8;
2750  sample0 = (Uint8) ((((Sint16) src[0]) + ((Sint16) last_sample0)) >> 1);
2751  sample1 = (Uint8) ((((Sint16) src[1]) + ((Sint16) last_sample1)) >> 1);
2752  sample2 = (Uint8) ((((Sint16) src[2]) + ((Sint16) last_sample2)) >> 1);
2753  sample3 = (Uint8) ((((Sint16) src[3]) + ((Sint16) last_sample3)) >> 1);
2754  sample4 = (Uint8) ((((Sint16) src[4]) + ((Sint16) last_sample4)) >> 1);
2755  sample5 = (Uint8) ((((Sint16) src[5]) + ((Sint16) last_sample5)) >> 1);
2756  sample6 = (Uint8) ((((Sint16) src[6]) + ((Sint16) last_sample6)) >> 1);
2757  sample7 = (Uint8) ((((Sint16) src[7]) + ((Sint16) last_sample7)) >> 1);
2758  last_sample0 = sample0;
2759  last_sample1 = sample1;
2760  last_sample2 = sample2;
2761  last_sample3 = sample3;
2762  last_sample4 = sample4;
2763  last_sample5 = sample5;
2764  last_sample6 = sample6;
2765  last_sample7 = sample7;
2766  eps -= srcsize;
2767  }
2768  }
2769  cvt->len_cvt = dstsize;
2770  if (cvt->filters[++cvt->filter_index]) {
2771  cvt->filters[cvt->filter_index] (cvt, format);
2772  }
2773 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
Uint8
uint8_t Uint8
An unsigned 8-bit integer type.
Definition: SDL_stdinc.h:139
target
GLenum target
Definition: SDL_opengl_glext.h:1551
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
SDL_AudioCVT::rate_incr
double rate_incr
Definition: SDL_audio.h:205
src
GLenum src
Definition: SDL_opengl_glext.h:1737
Sint16
int16_t Sint16
A signed 16-bit integer type.
Definition: SDL_stdinc.h:143
static void SDL_Downsample_U8_8c_x2 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 7773 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, and SDLCALL.

7774 {
7775 #if DEBUG_CONVERT
7776  fprintf(stderr, "Downsample (x2) AUDIO_U8, 8 channels.\n");
7777 #endif
7778 
7779  const int dstsize = cvt->len_cvt / 2;
7780  Uint8 *dst = (Uint8 *) cvt->buf;
7781  const Uint8 *src = (Uint8 *) cvt->buf;
7782  const Uint8 *target = (const Uint8 *) (cvt->buf + dstsize);
7783  Sint16 last_sample0 = (Sint16) src[0];
7784  Sint16 last_sample1 = (Sint16) src[1];
7785  Sint16 last_sample2 = (Sint16) src[2];
7786  Sint16 last_sample3 = (Sint16) src[3];
7787  Sint16 last_sample4 = (Sint16) src[4];
7788  Sint16 last_sample5 = (Sint16) src[5];
7789  Sint16 last_sample6 = (Sint16) src[6];
7790  Sint16 last_sample7 = (Sint16) src[7];
7791  while (dst < target) {
7792  const Sint16 sample0 = (Sint16) src[0];
7793  const Sint16 sample1 = (Sint16) src[1];
7794  const Sint16 sample2 = (Sint16) src[2];
7795  const Sint16 sample3 = (Sint16) src[3];
7796  const Sint16 sample4 = (Sint16) src[4];
7797  const Sint16 sample5 = (Sint16) src[5];
7798  const Sint16 sample6 = (Sint16) src[6];
7799  const Sint16 sample7 = (Sint16) src[7];
7800  src += 16;
7801  dst[0] = (Uint8) ((sample0 + last_sample0) >> 1);
7802  dst[1] = (Uint8) ((sample1 + last_sample1) >> 1);
7803  dst[2] = (Uint8) ((sample2 + last_sample2) >> 1);
7804  dst[3] = (Uint8) ((sample3 + last_sample3) >> 1);
7805  dst[4] = (Uint8) ((sample4 + last_sample4) >> 1);
7806  dst[5] = (Uint8) ((sample5 + last_sample5) >> 1);
7807  dst[6] = (Uint8) ((sample6 + last_sample6) >> 1);
7808  dst[7] = (Uint8) ((sample7 + last_sample7) >> 1);
7809  last_sample0 = sample0;
7810  last_sample1 = sample1;
7811  last_sample2 = sample2;
7812  last_sample3 = sample3;
7813  last_sample4 = sample4;
7814  last_sample5 = sample5;
7815  last_sample6 = sample6;
7816  last_sample7 = sample7;
7817  dst += 8;
7818  }
7819 
7820  cvt->len_cvt = dstsize;
7821  if (cvt->filters[++cvt->filter_index]) {
7822  cvt->filters[cvt->filter_index] (cvt, format);
7823  }
7824 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
Uint8
uint8_t Uint8
An unsigned 8-bit integer type.
Definition: SDL_stdinc.h:139
target
GLenum target
Definition: SDL_opengl_glext.h:1551
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
src
GLenum src
Definition: SDL_opengl_glext.h:1737
Sint16
int16_t Sint16
A signed 16-bit integer type.
Definition: SDL_stdinc.h:143
static void SDL_Downsample_U8_8c_x4 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 7905 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, and SDLCALL.

7906 {
7907 #if DEBUG_CONVERT
7908  fprintf(stderr, "Downsample (x4) AUDIO_U8, 8 channels.\n");
7909 #endif
7910 
7911  const int dstsize = cvt->len_cvt / 4;
7912  Uint8 *dst = (Uint8 *) cvt->buf;
7913  const Uint8 *src = (Uint8 *) cvt->buf;
7914  const Uint8 *target = (const Uint8 *) (cvt->buf + dstsize);
7915  Sint16 last_sample0 = (Sint16) src[0];
7916  Sint16 last_sample1 = (Sint16) src[1];
7917  Sint16 last_sample2 = (Sint16) src[2];
7918  Sint16 last_sample3 = (Sint16) src[3];
7919  Sint16 last_sample4 = (Sint16) src[4];
7920  Sint16 last_sample5 = (Sint16) src[5];
7921  Sint16 last_sample6 = (Sint16) src[6];
7922  Sint16 last_sample7 = (Sint16) src[7];
7923  while (dst < target) {
7924  const Sint16 sample0 = (Sint16) src[0];
7925  const Sint16 sample1 = (Sint16) src[1];
7926  const Sint16 sample2 = (Sint16) src[2];
7927  const Sint16 sample3 = (Sint16) src[3];
7928  const Sint16 sample4 = (Sint16) src[4];
7929  const Sint16 sample5 = (Sint16) src[5];
7930  const Sint16 sample6 = (Sint16) src[6];
7931  const Sint16 sample7 = (Sint16) src[7];
7932  src += 32;
7933  dst[0] = (Uint8) ((sample0 + last_sample0) >> 1);
7934  dst[1] = (Uint8) ((sample1 + last_sample1) >> 1);
7935  dst[2] = (Uint8) ((sample2 + last_sample2) >> 1);
7936  dst[3] = (Uint8) ((sample3 + last_sample3) >> 1);
7937  dst[4] = (Uint8) ((sample4 + last_sample4) >> 1);
7938  dst[5] = (Uint8) ((sample5 + last_sample5) >> 1);
7939  dst[6] = (Uint8) ((sample6 + last_sample6) >> 1);
7940  dst[7] = (Uint8) ((sample7 + last_sample7) >> 1);
7941  last_sample0 = sample0;
7942  last_sample1 = sample1;
7943  last_sample2 = sample2;
7944  last_sample3 = sample3;
7945  last_sample4 = sample4;
7946  last_sample5 = sample5;
7947  last_sample6 = sample6;
7948  last_sample7 = sample7;
7949  dst += 8;
7950  }
7951 
7952  cvt->len_cvt = dstsize;
7953  if (cvt->filters[++cvt->filter_index]) {
7954  cvt->filters[cvt->filter_index] (cvt, format);
7955  }
7956 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
Uint8
uint8_t Uint8
An unsigned 8-bit integer type.
Definition: SDL_stdinc.h:139
target
GLenum target
Definition: SDL_opengl_glext.h:1551
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
src
GLenum src
Definition: SDL_opengl_glext.h:1737
Sint16
int16_t Sint16
A signed 16-bit integer type.
Definition: SDL_stdinc.h:143
static void SDL_Upsample_F32LSB_1c ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 6136 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_AudioCVT::rate_incr, SDL_SwapFloatLE, and SDLCALL.

6137 {
6138 #if DEBUG_CONVERT
6139  fprintf(stderr, "Upsample arbitrary (x%f) AUDIO_F32LSB, 1 channels.\n", cvt->rate_incr);
6140 #endif
6141 
6142  const int srcsize = cvt->len_cvt - 64;
6143  const int dstsize = (int) (((double)(cvt->len_cvt/4)) * cvt->rate_incr) * 4;
6144  register int eps = 0;
6145  float *dst = ((float *) (cvt->buf + dstsize)) - 1;
6146  const float *src = ((float *) (cvt->buf + cvt->len_cvt)) - 1;
6147  const float *target = ((const float *) cvt->buf);
6148  float sample0 = SDL_SwapFloatLE(src[0]);
6149  float last_sample0 = sample0;
6150  while (dst >= target) {
6151  dst[0] = SDL_SwapFloatLE(sample0);
6152  dst--;
6153  eps += srcsize;
6154  if ((eps << 1) >= dstsize) {
6155  src--;
6156  sample0 = (float) ((((double) SDL_SwapFloatLE(src[0])) + ((double) last_sample0)) * 0.5);
6157  last_sample0 = sample0;
6158  eps -= dstsize;
6159  }
6160  }
6161  cvt->len_cvt = dstsize;
6162  if (cvt->filters[++cvt->filter_index]) {
6163  cvt->filters[cvt->filter_index] (cvt, format);
6164  }
6165 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_SwapFloatLE
#define SDL_SwapFloatLE(X)
Definition: SDL_endian.h:214
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
SDL_AudioCVT::rate_incr
double rate_incr
Definition: SDL_audio.h:205
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Upsample_F32LSB_1c_x2 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 13979 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_SwapFloatLE, and SDLCALL.

13980 {
13981 #if DEBUG_CONVERT
13982  fprintf(stderr, "Upsample (x2) AUDIO_F32LSB, 1 channels.\n");
13983 #endif
13984 
13985  const int dstsize = cvt->len_cvt * 2;
13986  float *dst = ((float *) (cvt->buf + dstsize)) - 1 * 2;
13987  const float *src = ((float *) (cvt->buf + cvt->len_cvt)) - 1;
13988  const float *target = ((const float *) cvt->buf);
13989  double last_sample0 = (double) SDL_SwapFloatLE(src[0]);
13990  while (dst >= target) {
13991  const double sample0 = (double) SDL_SwapFloatLE(src[0]);
13992  src--;
13993  dst[1] = (float) ((sample0 + last_sample0) * 0.5);
13994  dst[0] = (float) sample0;
13995  last_sample0 = sample0;
13996  dst -= 2;
13997  }
13998 
13999  cvt->len_cvt = dstsize;
14000  if (cvt->filters[++cvt->filter_index]) {
14001  cvt->filters[cvt->filter_index] (cvt, format);
14002  }
14003 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_SwapFloatLE
#define SDL_SwapFloatLE(X)
Definition: SDL_endian.h:214
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Upsample_F32LSB_1c_x4 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 14032 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_SwapFloatLE, and SDLCALL.

14033 {
14034 #if DEBUG_CONVERT
14035  fprintf(stderr, "Upsample (x4) AUDIO_F32LSB, 1 channels.\n");
14036 #endif
14037 
14038  const int dstsize = cvt->len_cvt * 4;
14039  float *dst = ((float *) (cvt->buf + dstsize)) - 1 * 4;
14040  const float *src = ((float *) (cvt->buf + cvt->len_cvt)) - 1;
14041  const float *target = ((const float *) cvt->buf);
14042  double last_sample0 = (double) SDL_SwapFloatLE(src[0]);
14043  while (dst >= target) {
14044  const double sample0 = (double) SDL_SwapFloatLE(src[0]);
14045  src--;
14046  dst[3] = (float) ((sample0 + (3.0 * last_sample0)) * 0.25);
14047  dst[2] = (float) ((sample0 + last_sample0) * 0.5);
14048  dst[1] = (float) (((3.0 * sample0) + last_sample0) * 0.25);
14049  dst[0] = (float) sample0;
14050  last_sample0 = sample0;
14051  dst -= 4;
14052  }
14053 
14054  cvt->len_cvt = dstsize;
14055  if (cvt->filters[++cvt->filter_index]) {
14056  cvt->filters[cvt->filter_index] (cvt, format);
14057  }
14058 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_SwapFloatLE
#define SDL_SwapFloatLE(X)
Definition: SDL_endian.h:214
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Upsample_F32LSB_2c ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 6200 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_AudioCVT::rate_incr, SDL_SwapFloatLE, and SDLCALL.

6201 {
6202 #if DEBUG_CONVERT
6203  fprintf(stderr, "Upsample arbitrary (x%f) AUDIO_F32LSB, 2 channels.\n", cvt->rate_incr);
6204 #endif
6205 
6206  const int srcsize = cvt->len_cvt - 128;
6207  const int dstsize = (int) (((double)(cvt->len_cvt/8)) * cvt->rate_incr) * 8;
6208  register int eps = 0;
6209  float *dst = ((float *) (cvt->buf + dstsize)) - 2;
6210  const float *src = ((float *) (cvt->buf + cvt->len_cvt)) - 2;
6211  const float *target = ((const float *) cvt->buf);
6212  float sample1 = SDL_SwapFloatLE(src[1]);
6213  float sample0 = SDL_SwapFloatLE(src[0]);
6214  float last_sample1 = sample1;
6215  float last_sample0 = sample0;
6216  while (dst >= target) {
6217  dst[1] = SDL_SwapFloatLE(sample1);
6218  dst[0] = SDL_SwapFloatLE(sample0);
6219  dst -= 2;
6220  eps += srcsize;
6221  if ((eps << 1) >= dstsize) {
6222  src -= 2;
6223  sample1 = (float) ((((double) SDL_SwapFloatLE(src[1])) + ((double) last_sample1)) * 0.5);
6224  sample0 = (float) ((((double) SDL_SwapFloatLE(src[0])) + ((double) last_sample0)) * 0.5);
6225  last_sample1 = sample1;
6226  last_sample0 = sample0;
6227  eps -= dstsize;
6228  }
6229  }
6230  cvt->len_cvt = dstsize;
6231  if (cvt->filters[++cvt->filter_index]) {
6232  cvt->filters[cvt->filter_index] (cvt, format);
6233  }
6234 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_SwapFloatLE
#define SDL_SwapFloatLE(X)
Definition: SDL_endian.h:214
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
SDL_AudioCVT::rate_incr
double rate_incr
Definition: SDL_audio.h:205
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Upsample_F32LSB_2c_x2 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 14087 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_SwapFloatLE, and SDLCALL.

14088 {
14089 #if DEBUG_CONVERT
14090  fprintf(stderr, "Upsample (x2) AUDIO_F32LSB, 2 channels.\n");
14091 #endif
14092 
14093  const int dstsize = cvt->len_cvt * 2;
14094  float *dst = ((float *) (cvt->buf + dstsize)) - 2 * 2;
14095  const float *src = ((float *) (cvt->buf + cvt->len_cvt)) - 2;
14096  const float *target = ((const float *) cvt->buf);
14097  double last_sample1 = (double) SDL_SwapFloatLE(src[1]);
14098  double last_sample0 = (double) SDL_SwapFloatLE(src[0]);
14099  while (dst >= target) {
14100  const double sample1 = (double) SDL_SwapFloatLE(src[1]);
14101  const double sample0 = (double) SDL_SwapFloatLE(src[0]);
14102  src -= 2;
14103  dst[3] = (float) ((sample1 + last_sample1) * 0.5);
14104  dst[2] = (float) ((sample0 + last_sample0) * 0.5);
14105  dst[1] = (float) sample1;
14106  dst[0] = (float) sample0;
14107  last_sample1 = sample1;
14108  last_sample0 = sample0;
14109  dst -= 4;
14110  }
14111 
14112  cvt->len_cvt = dstsize;
14113  if (cvt->filters[++cvt->filter_index]) {
14114  cvt->filters[cvt->filter_index] (cvt, format);
14115  }
14116 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_SwapFloatLE
#define SDL_SwapFloatLE(X)
Definition: SDL_endian.h:214
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Upsample_F32LSB_2c_x4 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 14149 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_SwapFloatLE, and SDLCALL.

14150 {
14151 #if DEBUG_CONVERT
14152  fprintf(stderr, "Upsample (x4) AUDIO_F32LSB, 2 channels.\n");
14153 #endif
14154 
14155  const int dstsize = cvt->len_cvt * 4;
14156  float *dst = ((float *) (cvt->buf + dstsize)) - 2 * 4;
14157  const float *src = ((float *) (cvt->buf + cvt->len_cvt)) - 2;
14158  const float *target = ((const float *) cvt->buf);
14159  double last_sample1 = (double) SDL_SwapFloatLE(src[1]);
14160  double last_sample0 = (double) SDL_SwapFloatLE(src[0]);
14161  while (dst >= target) {
14162  const double sample1 = (double) SDL_SwapFloatLE(src[1]);
14163  const double sample0 = (double) SDL_SwapFloatLE(src[0]);
14164  src -= 2;
14165  dst[7] = (float) ((sample1 + (3.0 * last_sample1)) * 0.25);
14166  dst[6] = (float) ((sample0 + (3.0 * last_sample0)) * 0.25);
14167  dst[5] = (float) ((sample1 + last_sample1) * 0.5);
14168  dst[4] = (float) ((sample0 + last_sample0) * 0.5);
14169  dst[3] = (float) (((3.0 * sample1) + last_sample1) * 0.25);
14170  dst[2] = (float) (((3.0 * sample0) + last_sample0) * 0.25);
14171  dst[1] = (float) sample1;
14172  dst[0] = (float) sample0;
14173  last_sample1 = sample1;
14174  last_sample0 = sample0;
14175  dst -= 8;
14176  }
14177 
14178  cvt->len_cvt = dstsize;
14179  if (cvt->filters[++cvt->filter_index]) {
14180  cvt->filters[cvt->filter_index] (cvt, format);
14181  }
14182 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_SwapFloatLE
#define SDL_SwapFloatLE(X)
Definition: SDL_endian.h:214
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Upsample_F32LSB_4c ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 6274 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_AudioCVT::rate_incr, SDL_SwapFloatLE, and SDLCALL.

6275 {
6276 #if DEBUG_CONVERT
6277  fprintf(stderr, "Upsample arbitrary (x%f) AUDIO_F32LSB, 4 channels.\n", cvt->rate_incr);
6278 #endif
6279 
6280  const int srcsize = cvt->len_cvt - 256;
6281  const int dstsize = (int) (((double)(cvt->len_cvt/16)) * cvt->rate_incr) * 16;
6282  register int eps = 0;
6283  float *dst = ((float *) (cvt->buf + dstsize)) - 4;
6284  const float *src = ((float *) (cvt->buf + cvt->len_cvt)) - 4;
6285  const float *target = ((const float *) cvt->buf);
6286  float sample3 = SDL_SwapFloatLE(src[3]);
6287  float sample2 = SDL_SwapFloatLE(src[2]);
6288  float sample1 = SDL_SwapFloatLE(src[1]);
6289  float sample0 = SDL_SwapFloatLE(src[0]);
6290  float last_sample3 = sample3;
6291  float last_sample2 = sample2;
6292  float last_sample1 = sample1;
6293  float last_sample0 = sample0;
6294  while (dst >= target) {
6295  dst[3] = SDL_SwapFloatLE(sample3);
6296  dst[2] = SDL_SwapFloatLE(sample2);
6297  dst[1] = SDL_SwapFloatLE(sample1);
6298  dst[0] = SDL_SwapFloatLE(sample0);
6299  dst -= 4;
6300  eps += srcsize;
6301  if ((eps << 1) >= dstsize) {
6302  src -= 4;
6303  sample3 = (float) ((((double) SDL_SwapFloatLE(src[3])) + ((double) last_sample3)) * 0.5);
6304  sample2 = (float) ((((double) SDL_SwapFloatLE(src[2])) + ((double) last_sample2)) * 0.5);
6305  sample1 = (float) ((((double) SDL_SwapFloatLE(src[1])) + ((double) last_sample1)) * 0.5);
6306  sample0 = (float) ((((double) SDL_SwapFloatLE(src[0])) + ((double) last_sample0)) * 0.5);
6307  last_sample3 = sample3;
6308  last_sample2 = sample2;
6309  last_sample1 = sample1;
6310  last_sample0 = sample0;
6311  eps -= dstsize;
6312  }
6313  }
6314  cvt->len_cvt = dstsize;
6315  if (cvt->filters[++cvt->filter_index]) {
6316  cvt->filters[cvt->filter_index] (cvt, format);
6317  }
6318 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_SwapFloatLE
#define SDL_SwapFloatLE(X)
Definition: SDL_endian.h:214
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
SDL_AudioCVT::rate_incr
double rate_incr
Definition: SDL_audio.h:205
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Upsample_F32LSB_4c_x2 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 14215 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_SwapFloatLE, and SDLCALL.

14216 {
14217 #if DEBUG_CONVERT
14218  fprintf(stderr, "Upsample (x2) AUDIO_F32LSB, 4 channels.\n");
14219 #endif
14220 
14221  const int dstsize = cvt->len_cvt * 2;
14222  float *dst = ((float *) (cvt->buf + dstsize)) - 4 * 2;
14223  const float *src = ((float *) (cvt->buf + cvt->len_cvt)) - 4;
14224  const float *target = ((const float *) cvt->buf);
14225  double last_sample3 = (double) SDL_SwapFloatLE(src[3]);
14226  double last_sample2 = (double) SDL_SwapFloatLE(src[2]);
14227  double last_sample1 = (double) SDL_SwapFloatLE(src[1]);
14228  double last_sample0 = (double) SDL_SwapFloatLE(src[0]);
14229  while (dst >= target) {
14230  const double sample3 = (double) SDL_SwapFloatLE(src[3]);
14231  const double sample2 = (double) SDL_SwapFloatLE(src[2]);
14232  const double sample1 = (double) SDL_SwapFloatLE(src[1]);
14233  const double sample0 = (double) SDL_SwapFloatLE(src[0]);
14234  src -= 4;
14235  dst[7] = (float) ((sample3 + last_sample3) * 0.5);
14236  dst[6] = (float) ((sample2 + last_sample2) * 0.5);
14237  dst[5] = (float) ((sample1 + last_sample1) * 0.5);
14238  dst[4] = (float) ((sample0 + last_sample0) * 0.5);
14239  dst[3] = (float) sample3;
14240  dst[2] = (float) sample2;
14241  dst[1] = (float) sample1;
14242  dst[0] = (float) sample0;
14243  last_sample3 = sample3;
14244  last_sample2 = sample2;
14245  last_sample1 = sample1;
14246  last_sample0 = sample0;
14247  dst -= 8;
14248  }
14249 
14250  cvt->len_cvt = dstsize;
14251  if (cvt->filters[++cvt->filter_index]) {
14252  cvt->filters[cvt->filter_index] (cvt, format);
14253  }
14254 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_SwapFloatLE
#define SDL_SwapFloatLE(X)
Definition: SDL_endian.h:214
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Upsample_F32LSB_4c_x4 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 14295 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_SwapFloatLE, and SDLCALL.

14296 {
14297 #if DEBUG_CONVERT
14298  fprintf(stderr, "Upsample (x4) AUDIO_F32LSB, 4 channels.\n");
14299 #endif
14300 
14301  const int dstsize = cvt->len_cvt * 4;
14302  float *dst = ((float *) (cvt->buf + dstsize)) - 4 * 4;
14303  const float *src = ((float *) (cvt->buf + cvt->len_cvt)) - 4;
14304  const float *target = ((const float *) cvt->buf);
14305  double last_sample3 = (double) SDL_SwapFloatLE(src[3]);
14306  double last_sample2 = (double) SDL_SwapFloatLE(src[2]);
14307  double last_sample1 = (double) SDL_SwapFloatLE(src[1]);
14308  double last_sample0 = (double) SDL_SwapFloatLE(src[0]);
14309  while (dst >= target) {
14310  const double sample3 = (double) SDL_SwapFloatLE(src[3]);
14311  const double sample2 = (double) SDL_SwapFloatLE(src[2]);
14312  const double sample1 = (double) SDL_SwapFloatLE(src[1]);
14313  const double sample0 = (double) SDL_SwapFloatLE(src[0]);
14314  src -= 4;
14315  dst[15] = (float) ((sample3 + (3.0 * last_sample3)) * 0.25);
14316  dst[14] = (float) ((sample2 + (3.0 * last_sample2)) * 0.25);
14317  dst[13] = (float) ((sample1 + (3.0 * last_sample1)) * 0.25);
14318  dst[12] = (float) ((sample0 + (3.0 * last_sample0)) * 0.25);
14319  dst[11] = (float) ((sample3 + last_sample3) * 0.5);
14320  dst[10] = (float) ((sample2 + last_sample2) * 0.5);
14321  dst[9] = (float) ((sample1 + last_sample1) * 0.5);
14322  dst[8] = (float) ((sample0 + last_sample0) * 0.5);
14323  dst[7] = (float) (((3.0 * sample3) + last_sample3) * 0.25);
14324  dst[6] = (float) (((3.0 * sample2) + last_sample2) * 0.25);
14325  dst[5] = (float) (((3.0 * sample1) + last_sample1) * 0.25);
14326  dst[4] = (float) (((3.0 * sample0) + last_sample0) * 0.25);
14327  dst[3] = (float) sample3;
14328  dst[2] = (float) sample2;
14329  dst[1] = (float) sample1;
14330  dst[0] = (float) sample0;
14331  last_sample3 = sample3;
14332  last_sample2 = sample2;
14333  last_sample1 = sample1;
14334  last_sample0 = sample0;
14335  dst -= 16;
14336  }
14337 
14338  cvt->len_cvt = dstsize;
14339  if (cvt->filters[++cvt->filter_index]) {
14340  cvt->filters[cvt->filter_index] (cvt, format);
14341  }
14342 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_SwapFloatLE
#define SDL_SwapFloatLE(X)
Definition: SDL_endian.h:214
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Upsample_F32LSB_6c ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 6368 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_AudioCVT::rate_incr, SDL_SwapFloatLE, and SDLCALL.

6369 {
6370 #if DEBUG_CONVERT
6371  fprintf(stderr, "Upsample arbitrary (x%f) AUDIO_F32LSB, 6 channels.\n", cvt->rate_incr);
6372 #endif
6373 
6374  const int srcsize = cvt->len_cvt - 384;
6375  const int dstsize = (int) (((double)(cvt->len_cvt/24)) * cvt->rate_incr) * 24;
6376  register int eps = 0;
6377  float *dst = ((float *) (cvt->buf + dstsize)) - 6;
6378  const float *src = ((float *) (cvt->buf + cvt->len_cvt)) - 6;
6379  const float *target = ((const float *) cvt->buf);
6380  float sample5 = SDL_SwapFloatLE(src[5]);
6381  float sample4 = SDL_SwapFloatLE(src[4]);
6382  float sample3 = SDL_SwapFloatLE(src[3]);
6383  float sample2 = SDL_SwapFloatLE(src[2]);
6384  float sample1 = SDL_SwapFloatLE(src[1]);
6385  float sample0 = SDL_SwapFloatLE(src[0]);
6386  float last_sample5 = sample5;
6387  float last_sample4 = sample4;
6388  float last_sample3 = sample3;
6389  float last_sample2 = sample2;
6390  float last_sample1 = sample1;
6391  float last_sample0 = sample0;
6392  while (dst >= target) {
6393  dst[5] = SDL_SwapFloatLE(sample5);
6394  dst[4] = SDL_SwapFloatLE(sample4);
6395  dst[3] = SDL_SwapFloatLE(sample3);
6396  dst[2] = SDL_SwapFloatLE(sample2);
6397  dst[1] = SDL_SwapFloatLE(sample1);
6398  dst[0] = SDL_SwapFloatLE(sample0);
6399  dst -= 6;
6400  eps += srcsize;
6401  if ((eps << 1) >= dstsize) {
6402  src -= 6;
6403  sample5 = (float) ((((double) SDL_SwapFloatLE(src[5])) + ((double) last_sample5)) * 0.5);
6404  sample4 = (float) ((((double) SDL_SwapFloatLE(src[4])) + ((double) last_sample4)) * 0.5);
6405  sample3 = (float) ((((double) SDL_SwapFloatLE(src[3])) + ((double) last_sample3)) * 0.5);
6406  sample2 = (float) ((((double) SDL_SwapFloatLE(src[2])) + ((double) last_sample2)) * 0.5);
6407  sample1 = (float) ((((double) SDL_SwapFloatLE(src[1])) + ((double) last_sample1)) * 0.5);
6408  sample0 = (float) ((((double) SDL_SwapFloatLE(src[0])) + ((double) last_sample0)) * 0.5);
6409  last_sample5 = sample5;
6410  last_sample4 = sample4;
6411  last_sample3 = sample3;
6412  last_sample2 = sample2;
6413  last_sample1 = sample1;
6414  last_sample0 = sample0;
6415  eps -= dstsize;
6416  }
6417  }
6418  cvt->len_cvt = dstsize;
6419  if (cvt->filters[++cvt->filter_index]) {
6420  cvt->filters[cvt->filter_index] (cvt, format);
6421  }
6422 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_SwapFloatLE
#define SDL_SwapFloatLE(X)
Definition: SDL_endian.h:214
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
SDL_AudioCVT::rate_incr
double rate_incr
Definition: SDL_audio.h:205
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Upsample_F32LSB_6c_x2 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 14383 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_SwapFloatLE, and SDLCALL.

14384 {
14385 #if DEBUG_CONVERT
14386  fprintf(stderr, "Upsample (x2) AUDIO_F32LSB, 6 channels.\n");
14387 #endif
14388 
14389  const int dstsize = cvt->len_cvt * 2;
14390  float *dst = ((float *) (cvt->buf + dstsize)) - 6 * 2;
14391  const float *src = ((float *) (cvt->buf + cvt->len_cvt)) - 6;
14392  const float *target = ((const float *) cvt->buf);
14393  double last_sample5 = (double) SDL_SwapFloatLE(src[5]);
14394  double last_sample4 = (double) SDL_SwapFloatLE(src[4]);
14395  double last_sample3 = (double) SDL_SwapFloatLE(src[3]);
14396  double last_sample2 = (double) SDL_SwapFloatLE(src[2]);
14397  double last_sample1 = (double) SDL_SwapFloatLE(src[1]);
14398  double last_sample0 = (double) SDL_SwapFloatLE(src[0]);
14399  while (dst >= target) {
14400  const double sample5 = (double) SDL_SwapFloatLE(src[5]);
14401  const double sample4 = (double) SDL_SwapFloatLE(src[4]);
14402  const double sample3 = (double) SDL_SwapFloatLE(src[3]);
14403  const double sample2 = (double) SDL_SwapFloatLE(src[2]);
14404  const double sample1 = (double) SDL_SwapFloatLE(src[1]);
14405  const double sample0 = (double) SDL_SwapFloatLE(src[0]);
14406  src -= 6;
14407  dst[11] = (float) ((sample5 + last_sample5) * 0.5);
14408  dst[10] = (float) ((sample4 + last_sample4) * 0.5);
14409  dst[9] = (float) ((sample3 + last_sample3) * 0.5);
14410  dst[8] = (float) ((sample2 + last_sample2) * 0.5);
14411  dst[7] = (float) ((sample1 + last_sample1) * 0.5);
14412  dst[6] = (float) ((sample0 + last_sample0) * 0.5);
14413  dst[5] = (float) sample5;
14414  dst[4] = (float) sample4;
14415  dst[3] = (float) sample3;
14416  dst[2] = (float) sample2;
14417  dst[1] = (float) sample1;
14418  dst[0] = (float) sample0;
14419  last_sample5 = sample5;
14420  last_sample4 = sample4;
14421  last_sample3 = sample3;
14422  last_sample2 = sample2;
14423  last_sample1 = sample1;
14424  last_sample0 = sample0;
14425  dst -= 12;
14426  }
14427 
14428  cvt->len_cvt = dstsize;
14429  if (cvt->filters[++cvt->filter_index]) {
14430  cvt->filters[cvt->filter_index] (cvt, format);
14431  }
14432 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_SwapFloatLE
#define SDL_SwapFloatLE(X)
Definition: SDL_endian.h:214
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Upsample_F32LSB_6c_x4 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 14481 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_SwapFloatLE, and SDLCALL.

14482 {
14483 #if DEBUG_CONVERT
14484  fprintf(stderr, "Upsample (x4) AUDIO_F32LSB, 6 channels.\n");
14485 #endif
14486 
14487  const int dstsize = cvt->len_cvt * 4;
14488  float *dst = ((float *) (cvt->buf + dstsize)) - 6 * 4;
14489  const float *src = ((float *) (cvt->buf + cvt->len_cvt)) - 6;
14490  const float *target = ((const float *) cvt->buf);
14491  double last_sample5 = (double) SDL_SwapFloatLE(src[5]);
14492  double last_sample4 = (double) SDL_SwapFloatLE(src[4]);
14493  double last_sample3 = (double) SDL_SwapFloatLE(src[3]);
14494  double last_sample2 = (double) SDL_SwapFloatLE(src[2]);
14495  double last_sample1 = (double) SDL_SwapFloatLE(src[1]);
14496  double last_sample0 = (double) SDL_SwapFloatLE(src[0]);
14497  while (dst >= target) {
14498  const double sample5 = (double) SDL_SwapFloatLE(src[5]);
14499  const double sample4 = (double) SDL_SwapFloatLE(src[4]);
14500  const double sample3 = (double) SDL_SwapFloatLE(src[3]);
14501  const double sample2 = (double) SDL_SwapFloatLE(src[2]);
14502  const double sample1 = (double) SDL_SwapFloatLE(src[1]);
14503  const double sample0 = (double) SDL_SwapFloatLE(src[0]);
14504  src -= 6;
14505  dst[23] = (float) ((sample5 + (3.0 * last_sample5)) * 0.25);
14506  dst[22] = (float) ((sample4 + (3.0 * last_sample4)) * 0.25);
14507  dst[21] = (float) ((sample3 + (3.0 * last_sample3)) * 0.25);
14508  dst[20] = (float) ((sample2 + (3.0 * last_sample2)) * 0.25);
14509  dst[19] = (float) ((sample1 + (3.0 * last_sample1)) * 0.25);
14510  dst[18] = (float) ((sample0 + (3.0 * last_sample0)) * 0.25);
14511  dst[17] = (float) ((sample5 + last_sample5) * 0.5);
14512  dst[16] = (float) ((sample4 + last_sample4) * 0.5);
14513  dst[15] = (float) ((sample3 + last_sample3) * 0.5);
14514  dst[14] = (float) ((sample2 + last_sample2) * 0.5);
14515  dst[13] = (float) ((sample1 + last_sample1) * 0.5);
14516  dst[12] = (float) ((sample0 + last_sample0) * 0.5);
14517  dst[11] = (float) (((3.0 * sample5) + last_sample5) * 0.25);
14518  dst[10] = (float) (((3.0 * sample4) + last_sample4) * 0.25);
14519  dst[9] = (float) (((3.0 * sample3) + last_sample3) * 0.25);
14520  dst[8] = (float) (((3.0 * sample2) + last_sample2) * 0.25);
14521  dst[7] = (float) (((3.0 * sample1) + last_sample1) * 0.25);
14522  dst[6] = (float) (((3.0 * sample0) + last_sample0) * 0.25);
14523  dst[5] = (float) sample5;
14524  dst[4] = (float) sample4;
14525  dst[3] = (float) sample3;
14526  dst[2] = (float) sample2;
14527  dst[1] = (float) sample1;
14528  dst[0] = (float) sample0;
14529  last_sample5 = sample5;
14530  last_sample4 = sample4;
14531  last_sample3 = sample3;
14532  last_sample2 = sample2;
14533  last_sample1 = sample1;
14534  last_sample0 = sample0;
14535  dst -= 24;
14536  }
14537 
14538  cvt->len_cvt = dstsize;
14539  if (cvt->filters[++cvt->filter_index]) {
14540  cvt->filters[cvt->filter_index] (cvt, format);
14541  }
14542 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_SwapFloatLE
#define SDL_SwapFloatLE(X)
Definition: SDL_endian.h:214
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Upsample_F32LSB_8c ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 6482 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_AudioCVT::rate_incr, SDL_SwapFloatLE, and SDLCALL.

6483 {
6484 #if DEBUG_CONVERT
6485  fprintf(stderr, "Upsample arbitrary (x%f) AUDIO_F32LSB, 8 channels.\n", cvt->rate_incr);
6486 #endif
6487 
6488  const int srcsize = cvt->len_cvt - 512;
6489  const int dstsize = (int) (((double)(cvt->len_cvt/32)) * cvt->rate_incr) * 32;
6490  register int eps = 0;
6491  float *dst = ((float *) (cvt->buf + dstsize)) - 8;
6492  const float *src = ((float *) (cvt->buf + cvt->len_cvt)) - 8;
6493  const float *target = ((const float *) cvt->buf);
6494  float sample7 = SDL_SwapFloatLE(src[7]);
6495  float sample6 = SDL_SwapFloatLE(src[6]);
6496  float sample5 = SDL_SwapFloatLE(src[5]);
6497  float sample4 = SDL_SwapFloatLE(src[4]);
6498  float sample3 = SDL_SwapFloatLE(src[3]);
6499  float sample2 = SDL_SwapFloatLE(src[2]);
6500  float sample1 = SDL_SwapFloatLE(src[1]);
6501  float sample0 = SDL_SwapFloatLE(src[0]);
6502  float last_sample7 = sample7;
6503  float last_sample6 = sample6;
6504  float last_sample5 = sample5;
6505  float last_sample4 = sample4;
6506  float last_sample3 = sample3;
6507  float last_sample2 = sample2;
6508  float last_sample1 = sample1;
6509  float last_sample0 = sample0;
6510  while (dst >= target) {
6511  dst[7] = SDL_SwapFloatLE(sample7);
6512  dst[6] = SDL_SwapFloatLE(sample6);
6513  dst[5] = SDL_SwapFloatLE(sample5);
6514  dst[4] = SDL_SwapFloatLE(sample4);
6515  dst[3] = SDL_SwapFloatLE(sample3);
6516  dst[2] = SDL_SwapFloatLE(sample2);
6517  dst[1] = SDL_SwapFloatLE(sample1);
6518  dst[0] = SDL_SwapFloatLE(sample0);
6519  dst -= 8;
6520  eps += srcsize;
6521  if ((eps << 1) >= dstsize) {
6522  src -= 8;
6523  sample7 = (float) ((((double) SDL_SwapFloatLE(src[7])) + ((double) last_sample7)) * 0.5);
6524  sample6 = (float) ((((double) SDL_SwapFloatLE(src[6])) + ((double) last_sample6)) * 0.5);
6525  sample5 = (float) ((((double) SDL_SwapFloatLE(src[5])) + ((double) last_sample5)) * 0.5);
6526  sample4 = (float) ((((double) SDL_SwapFloatLE(src[4])) + ((double) last_sample4)) * 0.5);
6527  sample3 = (float) ((((double) SDL_SwapFloatLE(src[3])) + ((double) last_sample3)) * 0.5);
6528  sample2 = (float) ((((double) SDL_SwapFloatLE(src[2])) + ((double) last_sample2)) * 0.5);
6529  sample1 = (float) ((((double) SDL_SwapFloatLE(src[1])) + ((double) last_sample1)) * 0.5);
6530  sample0 = (float) ((((double) SDL_SwapFloatLE(src[0])) + ((double) last_sample0)) * 0.5);
6531  last_sample7 = sample7;
6532  last_sample6 = sample6;
6533  last_sample5 = sample5;
6534  last_sample4 = sample4;
6535  last_sample3 = sample3;
6536  last_sample2 = sample2;
6537  last_sample1 = sample1;
6538  last_sample0 = sample0;
6539  eps -= dstsize;
6540  }
6541  }
6542  cvt->len_cvt = dstsize;
6543  if (cvt->filters[++cvt->filter_index]) {
6544  cvt->filters[cvt->filter_index] (cvt, format);
6545  }
6546 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_SwapFloatLE
#define SDL_SwapFloatLE(X)
Definition: SDL_endian.h:214
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
SDL_AudioCVT::rate_incr
double rate_incr
Definition: SDL_audio.h:205
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Upsample_F32LSB_8c_x2 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 14591 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_SwapFloatLE, and SDLCALL.

14592 {
14593 #if DEBUG_CONVERT
14594  fprintf(stderr, "Upsample (x2) AUDIO_F32LSB, 8 channels.\n");
14595 #endif
14596 
14597  const int dstsize = cvt->len_cvt * 2;
14598  float *dst = ((float *) (cvt->buf + dstsize)) - 8 * 2;
14599  const float *src = ((float *) (cvt->buf + cvt->len_cvt)) - 8;
14600  const float *target = ((const float *) cvt->buf);
14601  double last_sample7 = (double) SDL_SwapFloatLE(src[7]);
14602  double last_sample6 = (double) SDL_SwapFloatLE(src[6]);
14603  double last_sample5 = (double) SDL_SwapFloatLE(src[5]);
14604  double last_sample4 = (double) SDL_SwapFloatLE(src[4]);
14605  double last_sample3 = (double) SDL_SwapFloatLE(src[3]);
14606  double last_sample2 = (double) SDL_SwapFloatLE(src[2]);
14607  double last_sample1 = (double) SDL_SwapFloatLE(src[1]);
14608  double last_sample0 = (double) SDL_SwapFloatLE(src[0]);
14609  while (dst >= target) {
14610  const double sample7 = (double) SDL_SwapFloatLE(src[7]);
14611  const double sample6 = (double) SDL_SwapFloatLE(src[6]);
14612  const double sample5 = (double) SDL_SwapFloatLE(src[5]);
14613  const double sample4 = (double) SDL_SwapFloatLE(src[4]);
14614  const double sample3 = (double) SDL_SwapFloatLE(src[3]);
14615  const double sample2 = (double) SDL_SwapFloatLE(src[2]);
14616  const double sample1 = (double) SDL_SwapFloatLE(src[1]);
14617  const double sample0 = (double) SDL_SwapFloatLE(src[0]);
14618  src -= 8;
14619  dst[15] = (float) ((sample7 + last_sample7) * 0.5);
14620  dst[14] = (float) ((sample6 + last_sample6) * 0.5);
14621  dst[13] = (float) ((sample5 + last_sample5) * 0.5);
14622  dst[12] = (float) ((sample4 + last_sample4) * 0.5);
14623  dst[11] = (float) ((sample3 + last_sample3) * 0.5);
14624  dst[10] = (float) ((sample2 + last_sample2) * 0.5);
14625  dst[9] = (float) ((sample1 + last_sample1) * 0.5);
14626  dst[8] = (float) ((sample0 + last_sample0) * 0.5);
14627  dst[7] = (float) sample7;
14628  dst[6] = (float) sample6;
14629  dst[5] = (float) sample5;
14630  dst[4] = (float) sample4;
14631  dst[3] = (float) sample3;
14632  dst[2] = (float) sample2;
14633  dst[1] = (float) sample1;
14634  dst[0] = (float) sample0;
14635  last_sample7 = sample7;
14636  last_sample6 = sample6;
14637  last_sample5 = sample5;
14638  last_sample4 = sample4;
14639  last_sample3 = sample3;
14640  last_sample2 = sample2;
14641  last_sample1 = sample1;
14642  last_sample0 = sample0;
14643  dst -= 16;
14644  }
14645 
14646  cvt->len_cvt = dstsize;
14647  if (cvt->filters[++cvt->filter_index]) {
14648  cvt->filters[cvt->filter_index] (cvt, format);
14649  }
14650 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_SwapFloatLE
#define SDL_SwapFloatLE(X)
Definition: SDL_endian.h:214
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Upsample_F32LSB_8c_x4 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 14707 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_SwapFloatLE, and SDLCALL.

14708 {
14709 #if DEBUG_CONVERT
14710  fprintf(stderr, "Upsample (x4) AUDIO_F32LSB, 8 channels.\n");
14711 #endif
14712 
14713  const int dstsize = cvt->len_cvt * 4;
14714  float *dst = ((float *) (cvt->buf + dstsize)) - 8 * 4;
14715  const float *src = ((float *) (cvt->buf + cvt->len_cvt)) - 8;
14716  const float *target = ((const float *) cvt->buf);
14717  double last_sample7 = (double) SDL_SwapFloatLE(src[7]);
14718  double last_sample6 = (double) SDL_SwapFloatLE(src[6]);
14719  double last_sample5 = (double) SDL_SwapFloatLE(src[5]);
14720  double last_sample4 = (double) SDL_SwapFloatLE(src[4]);
14721  double last_sample3 = (double) SDL_SwapFloatLE(src[3]);
14722  double last_sample2 = (double) SDL_SwapFloatLE(src[2]);
14723  double last_sample1 = (double) SDL_SwapFloatLE(src[1]);
14724  double last_sample0 = (double) SDL_SwapFloatLE(src[0]);
14725  while (dst >= target) {
14726  const double sample7 = (double) SDL_SwapFloatLE(src[7]);
14727  const double sample6 = (double) SDL_SwapFloatLE(src[6]);
14728  const double sample5 = (double) SDL_SwapFloatLE(src[5]);
14729  const double sample4 = (double) SDL_SwapFloatLE(src[4]);
14730  const double sample3 = (double) SDL_SwapFloatLE(src[3]);
14731  const double sample2 = (double) SDL_SwapFloatLE(src[2]);
14732  const double sample1 = (double) SDL_SwapFloatLE(src[1]);
14733  const double sample0 = (double) SDL_SwapFloatLE(src[0]);
14734  src -= 8;
14735  dst[31] = (float) ((sample7 + (3.0 * last_sample7)) * 0.25);
14736  dst[30] = (float) ((sample6 + (3.0 * last_sample6)) * 0.25);
14737  dst[29] = (float) ((sample5 + (3.0 * last_sample5)) * 0.25);
14738  dst[28] = (float) ((sample4 + (3.0 * last_sample4)) * 0.25);
14739  dst[27] = (float) ((sample3 + (3.0 * last_sample3)) * 0.25);
14740  dst[26] = (float) ((sample2 + (3.0 * last_sample2)) * 0.25);
14741  dst[25] = (float) ((sample1 + (3.0 * last_sample1)) * 0.25);
14742  dst[24] = (float) ((sample0 + (3.0 * last_sample0)) * 0.25);
14743  dst[23] = (float) ((sample7 + last_sample7) * 0.5);
14744  dst[22] = (float) ((sample6 + last_sample6) * 0.5);
14745  dst[21] = (float) ((sample5 + last_sample5) * 0.5);
14746  dst[20] = (float) ((sample4 + last_sample4) * 0.5);
14747  dst[19] = (float) ((sample3 + last_sample3) * 0.5);
14748  dst[18] = (float) ((sample2 + last_sample2) * 0.5);
14749  dst[17] = (float) ((sample1 + last_sample1) * 0.5);
14750  dst[16] = (float) ((sample0 + last_sample0) * 0.5);
14751  dst[15] = (float) (((3.0 * sample7) + last_sample7) * 0.25);
14752  dst[14] = (float) (((3.0 * sample6) + last_sample6) * 0.25);
14753  dst[13] = (float) (((3.0 * sample5) + last_sample5) * 0.25);
14754  dst[12] = (float) (((3.0 * sample4) + last_sample4) * 0.25);
14755  dst[11] = (float) (((3.0 * sample3) + last_sample3) * 0.25);
14756  dst[10] = (float) (((3.0 * sample2) + last_sample2) * 0.25);
14757  dst[9] = (float) (((3.0 * sample1) + last_sample1) * 0.25);
14758  dst[8] = (float) (((3.0 * sample0) + last_sample0) * 0.25);
14759  dst[7] = (float) sample7;
14760  dst[6] = (float) sample6;
14761  dst[5] = (float) sample5;
14762  dst[4] = (float) sample4;
14763  dst[3] = (float) sample3;
14764  dst[2] = (float) sample2;
14765  dst[1] = (float) sample1;
14766  dst[0] = (float) sample0;
14767  last_sample7 = sample7;
14768  last_sample6 = sample6;
14769  last_sample5 = sample5;
14770  last_sample4 = sample4;
14771  last_sample3 = sample3;
14772  last_sample2 = sample2;
14773  last_sample1 = sample1;
14774  last_sample0 = sample0;
14775  dst -= 32;
14776  }
14777 
14778  cvt->len_cvt = dstsize;
14779  if (cvt->filters[++cvt->filter_index]) {
14780  cvt->filters[cvt->filter_index] (cvt, format);
14781  }
14782 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_SwapFloatLE
#define SDL_SwapFloatLE(X)
Definition: SDL_endian.h:214
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Upsample_F32MSB_1c ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 6616 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_AudioCVT::rate_incr, SDL_SwapFloatBE, and SDLCALL.

6617 {
6618 #if DEBUG_CONVERT
6619  fprintf(stderr, "Upsample arbitrary (x%f) AUDIO_F32MSB, 1 channels.\n", cvt->rate_incr);
6620 #endif
6621 
6622  const int srcsize = cvt->len_cvt - 64;
6623  const int dstsize = (int) (((double)(cvt->len_cvt/4)) * cvt->rate_incr) * 4;
6624  register int eps = 0;
6625  float *dst = ((float *) (cvt->buf + dstsize)) - 1;
6626  const float *src = ((float *) (cvt->buf + cvt->len_cvt)) - 1;
6627  const float *target = ((const float *) cvt->buf);
6628  float sample0 = SDL_SwapFloatBE(src[0]);
6629  float last_sample0 = sample0;
6630  while (dst >= target) {
6631  dst[0] = SDL_SwapFloatBE(sample0);
6632  dst--;
6633  eps += srcsize;
6634  if ((eps << 1) >= dstsize) {
6635  src--;
6636  sample0 = (float) ((((double) SDL_SwapFloatBE(src[0])) + ((double) last_sample0)) * 0.5);
6637  last_sample0 = sample0;
6638  eps -= dstsize;
6639  }
6640  }
6641  cvt->len_cvt = dstsize;
6642  if (cvt->filters[++cvt->filter_index]) {
6643  cvt->filters[cvt->filter_index] (cvt, format);
6644  }
6645 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_SwapFloatBE
#define SDL_SwapFloatBE(X)
Definition: SDL_endian.h:218
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
SDL_AudioCVT::rate_incr
double rate_incr
Definition: SDL_audio.h:205
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Upsample_F32MSB_1c_x2 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 14839 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_SwapFloatBE, and SDLCALL.

14840 {
14841 #if DEBUG_CONVERT
14842  fprintf(stderr, "Upsample (x2) AUDIO_F32MSB, 1 channels.\n");
14843 #endif
14844 
14845  const int dstsize = cvt->len_cvt * 2;
14846  float *dst = ((float *) (cvt->buf + dstsize)) - 1 * 2;
14847  const float *src = ((float *) (cvt->buf + cvt->len_cvt)) - 1;
14848  const float *target = ((const float *) cvt->buf);
14849  double last_sample0 = (double) SDL_SwapFloatBE(src[0]);
14850  while (dst >= target) {
14851  const double sample0 = (double) SDL_SwapFloatBE(src[0]);
14852  src--;
14853  dst[1] = (float) ((sample0 + last_sample0) * 0.5);
14854  dst[0] = (float) sample0;
14855  last_sample0 = sample0;
14856  dst -= 2;
14857  }
14858 
14859  cvt->len_cvt = dstsize;
14860  if (cvt->filters[++cvt->filter_index]) {
14861  cvt->filters[cvt->filter_index] (cvt, format);
14862  }
14863 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_SwapFloatBE
#define SDL_SwapFloatBE(X)
Definition: SDL_endian.h:218
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Upsample_F32MSB_1c_x4 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 14892 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_SwapFloatBE, and SDLCALL.

14893 {
14894 #if DEBUG_CONVERT
14895  fprintf(stderr, "Upsample (x4) AUDIO_F32MSB, 1 channels.\n");
14896 #endif
14897 
14898  const int dstsize = cvt->len_cvt * 4;
14899  float *dst = ((float *) (cvt->buf + dstsize)) - 1 * 4;
14900  const float *src = ((float *) (cvt->buf + cvt->len_cvt)) - 1;
14901  const float *target = ((const float *) cvt->buf);
14902  double last_sample0 = (double) SDL_SwapFloatBE(src[0]);
14903  while (dst >= target) {
14904  const double sample0 = (double) SDL_SwapFloatBE(src[0]);
14905  src--;
14906  dst[3] = (float) ((sample0 + (3.0 * last_sample0)) * 0.25);
14907  dst[2] = (float) ((sample0 + last_sample0) * 0.5);
14908  dst[1] = (float) (((3.0 * sample0) + last_sample0) * 0.25);
14909  dst[0] = (float) sample0;
14910  last_sample0 = sample0;
14911  dst -= 4;
14912  }
14913 
14914  cvt->len_cvt = dstsize;
14915  if (cvt->filters[++cvt->filter_index]) {
14916  cvt->filters[cvt->filter_index] (cvt, format);
14917  }
14918 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_SwapFloatBE
#define SDL_SwapFloatBE(X)
Definition: SDL_endian.h:218
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Upsample_F32MSB_2c ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 6680 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_AudioCVT::rate_incr, SDL_SwapFloatBE, and SDLCALL.

6681 {
6682 #if DEBUG_CONVERT
6683  fprintf(stderr, "Upsample arbitrary (x%f) AUDIO_F32MSB, 2 channels.\n", cvt->rate_incr);
6684 #endif
6685 
6686  const int srcsize = cvt->len_cvt - 128;
6687  const int dstsize = (int) (((double)(cvt->len_cvt/8)) * cvt->rate_incr) * 8;
6688  register int eps = 0;
6689  float *dst = ((float *) (cvt->buf + dstsize)) - 2;
6690  const float *src = ((float *) (cvt->buf + cvt->len_cvt)) - 2;
6691  const float *target = ((const float *) cvt->buf);
6692  float sample1 = SDL_SwapFloatBE(src[1]);
6693  float sample0 = SDL_SwapFloatBE(src[0]);
6694  float last_sample1 = sample1;
6695  float last_sample0 = sample0;
6696  while (dst >= target) {
6697  dst[1] = SDL_SwapFloatBE(sample1);
6698  dst[0] = SDL_SwapFloatBE(sample0);
6699  dst -= 2;
6700  eps += srcsize;
6701  if ((eps << 1) >= dstsize) {
6702  src -= 2;
6703  sample1 = (float) ((((double) SDL_SwapFloatBE(src[1])) + ((double) last_sample1)) * 0.5);
6704  sample0 = (float) ((((double) SDL_SwapFloatBE(src[0])) + ((double) last_sample0)) * 0.5);
6705  last_sample1 = sample1;
6706  last_sample0 = sample0;
6707  eps -= dstsize;
6708  }
6709  }
6710  cvt->len_cvt = dstsize;
6711  if (cvt->filters[++cvt->filter_index]) {
6712  cvt->filters[cvt->filter_index] (cvt, format);
6713  }
6714 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_SwapFloatBE
#define SDL_SwapFloatBE(X)
Definition: SDL_endian.h:218
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
SDL_AudioCVT::rate_incr
double rate_incr
Definition: SDL_audio.h:205
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Upsample_F32MSB_2c_x2 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 14947 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_SwapFloatBE, and SDLCALL.

14948 {
14949 #if DEBUG_CONVERT
14950  fprintf(stderr, "Upsample (x2) AUDIO_F32MSB, 2 channels.\n");
14951 #endif
14952 
14953  const int dstsize = cvt->len_cvt * 2;
14954  float *dst = ((float *) (cvt->buf + dstsize)) - 2 * 2;
14955  const float *src = ((float *) (cvt->buf + cvt->len_cvt)) - 2;
14956  const float *target = ((const float *) cvt->buf);
14957  double last_sample1 = (double) SDL_SwapFloatBE(src[1]);
14958  double last_sample0 = (double) SDL_SwapFloatBE(src[0]);
14959  while (dst >= target) {
14960  const double sample1 = (double) SDL_SwapFloatBE(src[1]);
14961  const double sample0 = (double) SDL_SwapFloatBE(src[0]);
14962  src -= 2;
14963  dst[3] = (float) ((sample1 + last_sample1) * 0.5);
14964  dst[2] = (float) ((sample0 + last_sample0) * 0.5);
14965  dst[1] = (float) sample1;
14966  dst[0] = (float) sample0;
14967  last_sample1 = sample1;
14968  last_sample0 = sample0;
14969  dst -= 4;
14970  }
14971 
14972  cvt->len_cvt = dstsize;
14973  if (cvt->filters[++cvt->filter_index]) {
14974  cvt->filters[cvt->filter_index] (cvt, format);
14975  }
14976 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_SwapFloatBE
#define SDL_SwapFloatBE(X)
Definition: SDL_endian.h:218
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Upsample_F32MSB_2c_x4 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 15009 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_SwapFloatBE, and SDLCALL.

15010 {
15011 #if DEBUG_CONVERT
15012  fprintf(stderr, "Upsample (x4) AUDIO_F32MSB, 2 channels.\n");
15013 #endif
15014 
15015  const int dstsize = cvt->len_cvt * 4;
15016  float *dst = ((float *) (cvt->buf + dstsize)) - 2 * 4;
15017  const float *src = ((float *) (cvt->buf + cvt->len_cvt)) - 2;
15018  const float *target = ((const float *) cvt->buf);
15019  double last_sample1 = (double) SDL_SwapFloatBE(src[1]);
15020  double last_sample0 = (double) SDL_SwapFloatBE(src[0]);
15021  while (dst >= target) {
15022  const double sample1 = (double) SDL_SwapFloatBE(src[1]);
15023  const double sample0 = (double) SDL_SwapFloatBE(src[0]);
15024  src -= 2;
15025  dst[7] = (float) ((sample1 + (3.0 * last_sample1)) * 0.25);
15026  dst[6] = (float) ((sample0 + (3.0 * last_sample0)) * 0.25);
15027  dst[5] = (float) ((sample1 + last_sample1) * 0.5);
15028  dst[4] = (float) ((sample0 + last_sample0) * 0.5);
15029  dst[3] = (float) (((3.0 * sample1) + last_sample1) * 0.25);
15030  dst[2] = (float) (((3.0 * sample0) + last_sample0) * 0.25);
15031  dst[1] = (float) sample1;
15032  dst[0] = (float) sample0;
15033  last_sample1 = sample1;
15034  last_sample0 = sample0;
15035  dst -= 8;
15036  }
15037 
15038  cvt->len_cvt = dstsize;
15039  if (cvt->filters[++cvt->filter_index]) {
15040  cvt->filters[cvt->filter_index] (cvt, format);
15041  }
15042 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_SwapFloatBE
#define SDL_SwapFloatBE(X)
Definition: SDL_endian.h:218
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Upsample_F32MSB_4c ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 6754 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_AudioCVT::rate_incr, SDL_SwapFloatBE, and SDLCALL.

6755 {
6756 #if DEBUG_CONVERT
6757  fprintf(stderr, "Upsample arbitrary (x%f) AUDIO_F32MSB, 4 channels.\n", cvt->rate_incr);
6758 #endif
6759 
6760  const int srcsize = cvt->len_cvt - 256;
6761  const int dstsize = (int) (((double)(cvt->len_cvt/16)) * cvt->rate_incr) * 16;
6762  register int eps = 0;
6763  float *dst = ((float *) (cvt->buf + dstsize)) - 4;
6764  const float *src = ((float *) (cvt->buf + cvt->len_cvt)) - 4;
6765  const float *target = ((const float *) cvt->buf);
6766  float sample3 = SDL_SwapFloatBE(src[3]);
6767  float sample2 = SDL_SwapFloatBE(src[2]);
6768  float sample1 = SDL_SwapFloatBE(src[1]);
6769  float sample0 = SDL_SwapFloatBE(src[0]);
6770  float last_sample3 = sample3;
6771  float last_sample2 = sample2;
6772  float last_sample1 = sample1;
6773  float last_sample0 = sample0;
6774  while (dst >= target) {
6775  dst[3] = SDL_SwapFloatBE(sample3);
6776  dst[2] = SDL_SwapFloatBE(sample2);
6777  dst[1] = SDL_SwapFloatBE(sample1);
6778  dst[0] = SDL_SwapFloatBE(sample0);
6779  dst -= 4;
6780  eps += srcsize;
6781  if ((eps << 1) >= dstsize) {
6782  src -= 4;
6783  sample3 = (float) ((((double) SDL_SwapFloatBE(src[3])) + ((double) last_sample3)) * 0.5);
6784  sample2 = (float) ((((double) SDL_SwapFloatBE(src[2])) + ((double) last_sample2)) * 0.5);
6785  sample1 = (float) ((((double) SDL_SwapFloatBE(src[1])) + ((double) last_sample1)) * 0.5);
6786  sample0 = (float) ((((double) SDL_SwapFloatBE(src[0])) + ((double) last_sample0)) * 0.5);
6787  last_sample3 = sample3;
6788  last_sample2 = sample2;
6789  last_sample1 = sample1;
6790  last_sample0 = sample0;
6791  eps -= dstsize;
6792  }
6793  }
6794  cvt->len_cvt = dstsize;
6795  if (cvt->filters[++cvt->filter_index]) {
6796  cvt->filters[cvt->filter_index] (cvt, format);
6797  }
6798 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_SwapFloatBE
#define SDL_SwapFloatBE(X)
Definition: SDL_endian.h:218
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
SDL_AudioCVT::rate_incr
double rate_incr
Definition: SDL_audio.h:205
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Upsample_F32MSB_4c_x2 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 15075 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_SwapFloatBE, and SDLCALL.

15076 {
15077 #if DEBUG_CONVERT
15078  fprintf(stderr, "Upsample (x2) AUDIO_F32MSB, 4 channels.\n");
15079 #endif
15080 
15081  const int dstsize = cvt->len_cvt * 2;
15082  float *dst = ((float *) (cvt->buf + dstsize)) - 4 * 2;
15083  const float *src = ((float *) (cvt->buf + cvt->len_cvt)) - 4;
15084  const float *target = ((const float *) cvt->buf);
15085  double last_sample3 = (double) SDL_SwapFloatBE(src[3]);
15086  double last_sample2 = (double) SDL_SwapFloatBE(src[2]);
15087  double last_sample1 = (double) SDL_SwapFloatBE(src[1]);
15088  double last_sample0 = (double) SDL_SwapFloatBE(src[0]);
15089  while (dst >= target) {
15090  const double sample3 = (double) SDL_SwapFloatBE(src[3]);
15091  const double sample2 = (double) SDL_SwapFloatBE(src[2]);
15092  const double sample1 = (double) SDL_SwapFloatBE(src[1]);
15093  const double sample0 = (double) SDL_SwapFloatBE(src[0]);
15094  src -= 4;
15095  dst[7] = (float) ((sample3 + last_sample3) * 0.5);
15096  dst[6] = (float) ((sample2 + last_sample2) * 0.5);
15097  dst[5] = (float) ((sample1 + last_sample1) * 0.5);
15098  dst[4] = (float) ((sample0 + last_sample0) * 0.5);
15099  dst[3] = (float) sample3;
15100  dst[2] = (float) sample2;
15101  dst[1] = (float) sample1;
15102  dst[0] = (float) sample0;
15103  last_sample3 = sample3;
15104  last_sample2 = sample2;
15105  last_sample1 = sample1;
15106  last_sample0 = sample0;
15107  dst -= 8;
15108  }
15109 
15110  cvt->len_cvt = dstsize;
15111  if (cvt->filters[++cvt->filter_index]) {
15112  cvt->filters[cvt->filter_index] (cvt, format);
15113  }
15114 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_SwapFloatBE
#define SDL_SwapFloatBE(X)
Definition: SDL_endian.h:218
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Upsample_F32MSB_4c_x4 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 15155 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_SwapFloatBE, and SDLCALL.

15156 {
15157 #if DEBUG_CONVERT
15158  fprintf(stderr, "Upsample (x4) AUDIO_F32MSB, 4 channels.\n");
15159 #endif
15160 
15161  const int dstsize = cvt->len_cvt * 4;
15162  float *dst = ((float *) (cvt->buf + dstsize)) - 4 * 4;
15163  const float *src = ((float *) (cvt->buf + cvt->len_cvt)) - 4;
15164  const float *target = ((const float *) cvt->buf);
15165  double last_sample3 = (double) SDL_SwapFloatBE(src[3]);
15166  double last_sample2 = (double) SDL_SwapFloatBE(src[2]);
15167  double last_sample1 = (double) SDL_SwapFloatBE(src[1]);
15168  double last_sample0 = (double) SDL_SwapFloatBE(src[0]);
15169  while (dst >= target) {
15170  const double sample3 = (double) SDL_SwapFloatBE(src[3]);
15171  const double sample2 = (double) SDL_SwapFloatBE(src[2]);
15172  const double sample1 = (double) SDL_SwapFloatBE(src[1]);
15173  const double sample0 = (double) SDL_SwapFloatBE(src[0]);
15174  src -= 4;
15175  dst[15] = (float) ((sample3 + (3.0 * last_sample3)) * 0.25);
15176  dst[14] = (float) ((sample2 + (3.0 * last_sample2)) * 0.25);
15177  dst[13] = (float) ((sample1 + (3.0 * last_sample1)) * 0.25);
15178  dst[12] = (float) ((sample0 + (3.0 * last_sample0)) * 0.25);
15179  dst[11] = (float) ((sample3 + last_sample3) * 0.5);
15180  dst[10] = (float) ((sample2 + last_sample2) * 0.5);
15181  dst[9] = (float) ((sample1 + last_sample1) * 0.5);
15182  dst[8] = (float) ((sample0 + last_sample0) * 0.5);
15183  dst[7] = (float) (((3.0 * sample3) + last_sample3) * 0.25);
15184  dst[6] = (float) (((3.0 * sample2) + last_sample2) * 0.25);
15185  dst[5] = (float) (((3.0 * sample1) + last_sample1) * 0.25);
15186  dst[4] = (float) (((3.0 * sample0) + last_sample0) * 0.25);
15187  dst[3] = (float) sample3;
15188  dst[2] = (float) sample2;
15189  dst[1] = (float) sample1;
15190  dst[0] = (float) sample0;
15191  last_sample3 = sample3;
15192  last_sample2 = sample2;
15193  last_sample1 = sample1;
15194  last_sample0 = sample0;
15195  dst -= 16;
15196  }
15197 
15198  cvt->len_cvt = dstsize;
15199  if (cvt->filters[++cvt->filter_index]) {
15200  cvt->filters[cvt->filter_index] (cvt, format);
15201  }
15202 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_SwapFloatBE
#define SDL_SwapFloatBE(X)
Definition: SDL_endian.h:218
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Upsample_F32MSB_6c ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 6848 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_AudioCVT::rate_incr, SDL_SwapFloatBE, and SDLCALL.

6849 {
6850 #if DEBUG_CONVERT
6851  fprintf(stderr, "Upsample arbitrary (x%f) AUDIO_F32MSB, 6 channels.\n", cvt->rate_incr);
6852 #endif
6853 
6854  const int srcsize = cvt->len_cvt - 384;
6855  const int dstsize = (int) (((double)(cvt->len_cvt/24)) * cvt->rate_incr) * 24;
6856  register int eps = 0;
6857  float *dst = ((float *) (cvt->buf + dstsize)) - 6;
6858  const float *src = ((float *) (cvt->buf + cvt->len_cvt)) - 6;
6859  const float *target = ((const float *) cvt->buf);
6860  float sample5 = SDL_SwapFloatBE(src[5]);
6861  float sample4 = SDL_SwapFloatBE(src[4]);
6862  float sample3 = SDL_SwapFloatBE(src[3]);
6863  float sample2 = SDL_SwapFloatBE(src[2]);
6864  float sample1 = SDL_SwapFloatBE(src[1]);
6865  float sample0 = SDL_SwapFloatBE(src[0]);
6866  float last_sample5 = sample5;
6867  float last_sample4 = sample4;
6868  float last_sample3 = sample3;
6869  float last_sample2 = sample2;
6870  float last_sample1 = sample1;
6871  float last_sample0 = sample0;
6872  while (dst >= target) {
6873  dst[5] = SDL_SwapFloatBE(sample5);
6874  dst[4] = SDL_SwapFloatBE(sample4);
6875  dst[3] = SDL_SwapFloatBE(sample3);
6876  dst[2] = SDL_SwapFloatBE(sample2);
6877  dst[1] = SDL_SwapFloatBE(sample1);
6878  dst[0] = SDL_SwapFloatBE(sample0);
6879  dst -= 6;
6880  eps += srcsize;
6881  if ((eps << 1) >= dstsize) {
6882  src -= 6;
6883  sample5 = (float) ((((double) SDL_SwapFloatBE(src[5])) + ((double) last_sample5)) * 0.5);
6884  sample4 = (float) ((((double) SDL_SwapFloatBE(src[4])) + ((double) last_sample4)) * 0.5);
6885  sample3 = (float) ((((double) SDL_SwapFloatBE(src[3])) + ((double) last_sample3)) * 0.5);
6886  sample2 = (float) ((((double) SDL_SwapFloatBE(src[2])) + ((double) last_sample2)) * 0.5);
6887  sample1 = (float) ((((double) SDL_SwapFloatBE(src[1])) + ((double) last_sample1)) * 0.5);
6888  sample0 = (float) ((((double) SDL_SwapFloatBE(src[0])) + ((double) last_sample0)) * 0.5);
6889  last_sample5 = sample5;
6890  last_sample4 = sample4;
6891  last_sample3 = sample3;
6892  last_sample2 = sample2;
6893  last_sample1 = sample1;
6894  last_sample0 = sample0;
6895  eps -= dstsize;
6896  }
6897  }
6898  cvt->len_cvt = dstsize;
6899  if (cvt->filters[++cvt->filter_index]) {
6900  cvt->filters[cvt->filter_index] (cvt, format);
6901  }
6902 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_SwapFloatBE
#define SDL_SwapFloatBE(X)
Definition: SDL_endian.h:218
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
SDL_AudioCVT::rate_incr
double rate_incr
Definition: SDL_audio.h:205
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Upsample_F32MSB_6c_x2 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 15243 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_SwapFloatBE, and SDLCALL.

15244 {
15245 #if DEBUG_CONVERT
15246  fprintf(stderr, "Upsample (x2) AUDIO_F32MSB, 6 channels.\n");
15247 #endif
15248 
15249  const int dstsize = cvt->len_cvt * 2;
15250  float *dst = ((float *) (cvt->buf + dstsize)) - 6 * 2;
15251  const float *src = ((float *) (cvt->buf + cvt->len_cvt)) - 6;
15252  const float *target = ((const float *) cvt->buf);
15253  double last_sample5 = (double) SDL_SwapFloatBE(src[5]);
15254  double last_sample4 = (double) SDL_SwapFloatBE(src[4]);
15255  double last_sample3 = (double) SDL_SwapFloatBE(src[3]);
15256  double last_sample2 = (double) SDL_SwapFloatBE(src[2]);
15257  double last_sample1 = (double) SDL_SwapFloatBE(src[1]);
15258  double last_sample0 = (double) SDL_SwapFloatBE(src[0]);
15259  while (dst >= target) {
15260  const double sample5 = (double) SDL_SwapFloatBE(src[5]);
15261  const double sample4 = (double) SDL_SwapFloatBE(src[4]);
15262  const double sample3 = (double) SDL_SwapFloatBE(src[3]);
15263  const double sample2 = (double) SDL_SwapFloatBE(src[2]);
15264  const double sample1 = (double) SDL_SwapFloatBE(src[1]);
15265  const double sample0 = (double) SDL_SwapFloatBE(src[0]);
15266  src -= 6;
15267  dst[11] = (float) ((sample5 + last_sample5) * 0.5);
15268  dst[10] = (float) ((sample4 + last_sample4) * 0.5);
15269  dst[9] = (float) ((sample3 + last_sample3) * 0.5);
15270  dst[8] = (float) ((sample2 + last_sample2) * 0.5);
15271  dst[7] = (float) ((sample1 + last_sample1) * 0.5);
15272  dst[6] = (float) ((sample0 + last_sample0) * 0.5);
15273  dst[5] = (float) sample5;
15274  dst[4] = (float) sample4;
15275  dst[3] = (float) sample3;
15276  dst[2] = (float) sample2;
15277  dst[1] = (float) sample1;
15278  dst[0] = (float) sample0;
15279  last_sample5 = sample5;
15280  last_sample4 = sample4;
15281  last_sample3 = sample3;
15282  last_sample2 = sample2;
15283  last_sample1 = sample1;
15284  last_sample0 = sample0;
15285  dst -= 12;
15286  }
15287 
15288  cvt->len_cvt = dstsize;
15289  if (cvt->filters[++cvt->filter_index]) {
15290  cvt->filters[cvt->filter_index] (cvt, format);
15291  }
15292 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_SwapFloatBE
#define SDL_SwapFloatBE(X)
Definition: SDL_endian.h:218
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Upsample_F32MSB_6c_x4 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 15341 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_SwapFloatBE, and SDLCALL.

15342 {
15343 #if DEBUG_CONVERT
15344  fprintf(stderr, "Upsample (x4) AUDIO_F32MSB, 6 channels.\n");
15345 #endif
15346 
15347  const int dstsize = cvt->len_cvt * 4;
15348  float *dst = ((float *) (cvt->buf + dstsize)) - 6 * 4;
15349  const float *src = ((float *) (cvt->buf + cvt->len_cvt)) - 6;
15350  const float *target = ((const float *) cvt->buf);
15351  double last_sample5 = (double) SDL_SwapFloatBE(src[5]);
15352  double last_sample4 = (double) SDL_SwapFloatBE(src[4]);
15353  double last_sample3 = (double) SDL_SwapFloatBE(src[3]);
15354  double last_sample2 = (double) SDL_SwapFloatBE(src[2]);
15355  double last_sample1 = (double) SDL_SwapFloatBE(src[1]);
15356  double last_sample0 = (double) SDL_SwapFloatBE(src[0]);
15357  while (dst >= target) {
15358  const double sample5 = (double) SDL_SwapFloatBE(src[5]);
15359  const double sample4 = (double) SDL_SwapFloatBE(src[4]);
15360  const double sample3 = (double) SDL_SwapFloatBE(src[3]);
15361  const double sample2 = (double) SDL_SwapFloatBE(src[2]);
15362  const double sample1 = (double) SDL_SwapFloatBE(src[1]);
15363  const double sample0 = (double) SDL_SwapFloatBE(src[0]);
15364  src -= 6;
15365  dst[23] = (float) ((sample5 + (3.0 * last_sample5)) * 0.25);
15366  dst[22] = (float) ((sample4 + (3.0 * last_sample4)) * 0.25);
15367  dst[21] = (float) ((sample3 + (3.0 * last_sample3)) * 0.25);
15368  dst[20] = (float) ((sample2 + (3.0 * last_sample2)) * 0.25);
15369  dst[19] = (float) ((sample1 + (3.0 * last_sample1)) * 0.25);
15370  dst[18] = (float) ((sample0 + (3.0 * last_sample0)) * 0.25);
15371  dst[17] = (float) ((sample5 + last_sample5) * 0.5);
15372  dst[16] = (float) ((sample4 + last_sample4) * 0.5);
15373  dst[15] = (float) ((sample3 + last_sample3) * 0.5);
15374  dst[14] = (float) ((sample2 + last_sample2) * 0.5);
15375  dst[13] = (float) ((sample1 + last_sample1) * 0.5);
15376  dst[12] = (float) ((sample0 + last_sample0) * 0.5);
15377  dst[11] = (float) (((3.0 * sample5) + last_sample5) * 0.25);
15378  dst[10] = (float) (((3.0 * sample4) + last_sample4) * 0.25);
15379  dst[9] = (float) (((3.0 * sample3) + last_sample3) * 0.25);
15380  dst[8] = (float) (((3.0 * sample2) + last_sample2) * 0.25);
15381  dst[7] = (float) (((3.0 * sample1) + last_sample1) * 0.25);
15382  dst[6] = (float) (((3.0 * sample0) + last_sample0) * 0.25);
15383  dst[5] = (float) sample5;
15384  dst[4] = (float) sample4;
15385  dst[3] = (float) sample3;
15386  dst[2] = (float) sample2;
15387  dst[1] = (float) sample1;
15388  dst[0] = (float) sample0;
15389  last_sample5 = sample5;
15390  last_sample4 = sample4;
15391  last_sample3 = sample3;
15392  last_sample2 = sample2;
15393  last_sample1 = sample1;
15394  last_sample0 = sample0;
15395  dst -= 24;
15396  }
15397 
15398  cvt->len_cvt = dstsize;
15399  if (cvt->filters[++cvt->filter_index]) {
15400  cvt->filters[cvt->filter_index] (cvt, format);
15401  }
15402 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_SwapFloatBE
#define SDL_SwapFloatBE(X)
Definition: SDL_endian.h:218
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Upsample_F32MSB_8c ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 6962 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_AudioCVT::rate_incr, SDL_SwapFloatBE, and SDLCALL.

6963 {
6964 #if DEBUG_CONVERT
6965  fprintf(stderr, "Upsample arbitrary (x%f) AUDIO_F32MSB, 8 channels.\n", cvt->rate_incr);
6966 #endif
6967 
6968  const int srcsize = cvt->len_cvt - 512;
6969  const int dstsize = (int) (((double)(cvt->len_cvt/32)) * cvt->rate_incr) * 32;
6970  register int eps = 0;
6971  float *dst = ((float *) (cvt->buf + dstsize)) - 8;
6972  const float *src = ((float *) (cvt->buf + cvt->len_cvt)) - 8;
6973  const float *target = ((const float *) cvt->buf);
6974  float sample7 = SDL_SwapFloatBE(src[7]);
6975  float sample6 = SDL_SwapFloatBE(src[6]);
6976  float sample5 = SDL_SwapFloatBE(src[5]);
6977  float sample4 = SDL_SwapFloatBE(src[4]);
6978  float sample3 = SDL_SwapFloatBE(src[3]);
6979  float sample2 = SDL_SwapFloatBE(src[2]);
6980  float sample1 = SDL_SwapFloatBE(src[1]);
6981  float sample0 = SDL_SwapFloatBE(src[0]);
6982  float last_sample7 = sample7;
6983  float last_sample6 = sample6;
6984  float last_sample5 = sample5;
6985  float last_sample4 = sample4;
6986  float last_sample3 = sample3;
6987  float last_sample2 = sample2;
6988  float last_sample1 = sample1;
6989  float last_sample0 = sample0;
6990  while (dst >= target) {
6991  dst[7] = SDL_SwapFloatBE(sample7);
6992  dst[6] = SDL_SwapFloatBE(sample6);
6993  dst[5] = SDL_SwapFloatBE(sample5);
6994  dst[4] = SDL_SwapFloatBE(sample4);
6995  dst[3] = SDL_SwapFloatBE(sample3);
6996  dst[2] = SDL_SwapFloatBE(sample2);
6997  dst[1] = SDL_SwapFloatBE(sample1);
6998  dst[0] = SDL_SwapFloatBE(sample0);
6999  dst -= 8;
7000  eps += srcsize;
7001  if ((eps << 1) >= dstsize) {
7002  src -= 8;
7003  sample7 = (float) ((((double) SDL_SwapFloatBE(src[7])) + ((double) last_sample7)) * 0.5);
7004  sample6 = (float) ((((double) SDL_SwapFloatBE(src[6])) + ((double) last_sample6)) * 0.5);
7005  sample5 = (float) ((((double) SDL_SwapFloatBE(src[5])) + ((double) last_sample5)) * 0.5);
7006  sample4 = (float) ((((double) SDL_SwapFloatBE(src[4])) + ((double) last_sample4)) * 0.5);
7007  sample3 = (float) ((((double) SDL_SwapFloatBE(src[3])) + ((double) last_sample3)) * 0.5);
7008  sample2 = (float) ((((double) SDL_SwapFloatBE(src[2])) + ((double) last_sample2)) * 0.5);
7009  sample1 = (float) ((((double) SDL_SwapFloatBE(src[1])) + ((double) last_sample1)) * 0.5);
7010  sample0 = (float) ((((double) SDL_SwapFloatBE(src[0])) + ((double) last_sample0)) * 0.5);
7011  last_sample7 = sample7;
7012  last_sample6 = sample6;
7013  last_sample5 = sample5;
7014  last_sample4 = sample4;
7015  last_sample3 = sample3;
7016  last_sample2 = sample2;
7017  last_sample1 = sample1;
7018  last_sample0 = sample0;
7019  eps -= dstsize;
7020  }
7021  }
7022  cvt->len_cvt = dstsize;
7023  if (cvt->filters[++cvt->filter_index]) {
7024  cvt->filters[cvt->filter_index] (cvt, format);
7025  }
7026 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_SwapFloatBE
#define SDL_SwapFloatBE(X)
Definition: SDL_endian.h:218
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
SDL_AudioCVT::rate_incr
double rate_incr
Definition: SDL_audio.h:205
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Upsample_F32MSB_8c_x2 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 15451 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_SwapFloatBE, and SDLCALL.

15452 {
15453 #if DEBUG_CONVERT
15454  fprintf(stderr, "Upsample (x2) AUDIO_F32MSB, 8 channels.\n");
15455 #endif
15456 
15457  const int dstsize = cvt->len_cvt * 2;
15458  float *dst = ((float *) (cvt->buf + dstsize)) - 8 * 2;
15459  const float *src = ((float *) (cvt->buf + cvt->len_cvt)) - 8;
15460  const float *target = ((const float *) cvt->buf);
15461  double last_sample7 = (double) SDL_SwapFloatBE(src[7]);
15462  double last_sample6 = (double) SDL_SwapFloatBE(src[6]);
15463  double last_sample5 = (double) SDL_SwapFloatBE(src[5]);
15464  double last_sample4 = (double) SDL_SwapFloatBE(src[4]);
15465  double last_sample3 = (double) SDL_SwapFloatBE(src[3]);
15466  double last_sample2 = (double) SDL_SwapFloatBE(src[2]);
15467  double last_sample1 = (double) SDL_SwapFloatBE(src[1]);
15468  double last_sample0 = (double) SDL_SwapFloatBE(src[0]);
15469  while (dst >= target) {
15470  const double sample7 = (double) SDL_SwapFloatBE(src[7]);
15471  const double sample6 = (double) SDL_SwapFloatBE(src[6]);
15472  const double sample5 = (double) SDL_SwapFloatBE(src[5]);
15473  const double sample4 = (double) SDL_SwapFloatBE(src[4]);
15474  const double sample3 = (double) SDL_SwapFloatBE(src[3]);
15475  const double sample2 = (double) SDL_SwapFloatBE(src[2]);
15476  const double sample1 = (double) SDL_SwapFloatBE(src[1]);
15477  const double sample0 = (double) SDL_SwapFloatBE(src[0]);
15478  src -= 8;
15479  dst[15] = (float) ((sample7 + last_sample7) * 0.5);
15480  dst[14] = (float) ((sample6 + last_sample6) * 0.5);
15481  dst[13] = (float) ((sample5 + last_sample5) * 0.5);
15482  dst[12] = (float) ((sample4 + last_sample4) * 0.5);
15483  dst[11] = (float) ((sample3 + last_sample3) * 0.5);
15484  dst[10] = (float) ((sample2 + last_sample2) * 0.5);
15485  dst[9] = (float) ((sample1 + last_sample1) * 0.5);
15486  dst[8] = (float) ((sample0 + last_sample0) * 0.5);
15487  dst[7] = (float) sample7;
15488  dst[6] = (float) sample6;
15489  dst[5] = (float) sample5;
15490  dst[4] = (float) sample4;
15491  dst[3] = (float) sample3;
15492  dst[2] = (float) sample2;
15493  dst[1] = (float) sample1;
15494  dst[0] = (float) sample0;
15495  last_sample7 = sample7;
15496  last_sample6 = sample6;
15497  last_sample5 = sample5;
15498  last_sample4 = sample4;
15499  last_sample3 = sample3;
15500  last_sample2 = sample2;
15501  last_sample1 = sample1;
15502  last_sample0 = sample0;
15503  dst -= 16;
15504  }
15505 
15506  cvt->len_cvt = dstsize;
15507  if (cvt->filters[++cvt->filter_index]) {
15508  cvt->filters[cvt->filter_index] (cvt, format);
15509  }
15510 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_SwapFloatBE
#define SDL_SwapFloatBE(X)
Definition: SDL_endian.h:218
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Upsample_F32MSB_8c_x4 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 15567 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_SwapFloatBE, and SDLCALL.

15568 {
15569 #if DEBUG_CONVERT
15570  fprintf(stderr, "Upsample (x4) AUDIO_F32MSB, 8 channels.\n");
15571 #endif
15572 
15573  const int dstsize = cvt->len_cvt * 4;
15574  float *dst = ((float *) (cvt->buf + dstsize)) - 8 * 4;
15575  const float *src = ((float *) (cvt->buf + cvt->len_cvt)) - 8;
15576  const float *target = ((const float *) cvt->buf);
15577  double last_sample7 = (double) SDL_SwapFloatBE(src[7]);
15578  double last_sample6 = (double) SDL_SwapFloatBE(src[6]);
15579  double last_sample5 = (double) SDL_SwapFloatBE(src[5]);
15580  double last_sample4 = (double) SDL_SwapFloatBE(src[4]);
15581  double last_sample3 = (double) SDL_SwapFloatBE(src[3]);
15582  double last_sample2 = (double) SDL_SwapFloatBE(src[2]);
15583  double last_sample1 = (double) SDL_SwapFloatBE(src[1]);
15584  double last_sample0 = (double) SDL_SwapFloatBE(src[0]);
15585  while (dst >= target) {
15586  const double sample7 = (double) SDL_SwapFloatBE(src[7]);
15587  const double sample6 = (double) SDL_SwapFloatBE(src[6]);
15588  const double sample5 = (double) SDL_SwapFloatBE(src[5]);
15589  const double sample4 = (double) SDL_SwapFloatBE(src[4]);
15590  const double sample3 = (double) SDL_SwapFloatBE(src[3]);
15591  const double sample2 = (double) SDL_SwapFloatBE(src[2]);
15592  const double sample1 = (double) SDL_SwapFloatBE(src[1]);
15593  const double sample0 = (double) SDL_SwapFloatBE(src[0]);
15594  src -= 8;
15595  dst[31] = (float) ((sample7 + (3.0 * last_sample7)) * 0.25);
15596  dst[30] = (float) ((sample6 + (3.0 * last_sample6)) * 0.25);
15597  dst[29] = (float) ((sample5 + (3.0 * last_sample5)) * 0.25);
15598  dst[28] = (float) ((sample4 + (3.0 * last_sample4)) * 0.25);
15599  dst[27] = (float) ((sample3 + (3.0 * last_sample3)) * 0.25);
15600  dst[26] = (float) ((sample2 + (3.0 * last_sample2)) * 0.25);
15601  dst[25] = (float) ((sample1 + (3.0 * last_sample1)) * 0.25);
15602  dst[24] = (float) ((sample0 + (3.0 * last_sample0)) * 0.25);
15603  dst[23] = (float) ((sample7 + last_sample7) * 0.5);
15604  dst[22] = (float) ((sample6 + last_sample6) * 0.5);
15605  dst[21] = (float) ((sample5 + last_sample5) * 0.5);
15606  dst[20] = (float) ((sample4 + last_sample4) * 0.5);
15607  dst[19] = (float) ((sample3 + last_sample3) * 0.5);
15608  dst[18] = (float) ((sample2 + last_sample2) * 0.5);
15609  dst[17] = (float) ((sample1 + last_sample1) * 0.5);
15610  dst[16] = (float) ((sample0 + last_sample0) * 0.5);
15611  dst[15] = (float) (((3.0 * sample7) + last_sample7) * 0.25);
15612  dst[14] = (float) (((3.0 * sample6) + last_sample6) * 0.25);
15613  dst[13] = (float) (((3.0 * sample5) + last_sample5) * 0.25);
15614  dst[12] = (float) (((3.0 * sample4) + last_sample4) * 0.25);
15615  dst[11] = (float) (((3.0 * sample3) + last_sample3) * 0.25);
15616  dst[10] = (float) (((3.0 * sample2) + last_sample2) * 0.25);
15617  dst[9] = (float) (((3.0 * sample1) + last_sample1) * 0.25);
15618  dst[8] = (float) (((3.0 * sample0) + last_sample0) * 0.25);
15619  dst[7] = (float) sample7;
15620  dst[6] = (float) sample6;
15621  dst[5] = (float) sample5;
15622  dst[4] = (float) sample4;
15623  dst[3] = (float) sample3;
15624  dst[2] = (float) sample2;
15625  dst[1] = (float) sample1;
15626  dst[0] = (float) sample0;
15627  last_sample7 = sample7;
15628  last_sample6 = sample6;
15629  last_sample5 = sample5;
15630  last_sample4 = sample4;
15631  last_sample3 = sample3;
15632  last_sample2 = sample2;
15633  last_sample1 = sample1;
15634  last_sample0 = sample0;
15635  dst -= 32;
15636  }
15637 
15638  cvt->len_cvt = dstsize;
15639  if (cvt->filters[++cvt->filter_index]) {
15640  cvt->filters[cvt->filter_index] (cvt, format);
15641  }
15642 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_SwapFloatBE
#define SDL_SwapFloatBE(X)
Definition: SDL_endian.h:218
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Upsample_S16LSB_1c ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 3736 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_AudioCVT::rate_incr, SDL_SwapLE16, and SDLCALL.

3737 {
3738 #if DEBUG_CONVERT
3739  fprintf(stderr, "Upsample arbitrary (x%f) AUDIO_S16LSB, 1 channels.\n", cvt->rate_incr);
3740 #endif
3741 
3742  const int srcsize = cvt->len_cvt - 32;
3743  const int dstsize = (int) (((double)(cvt->len_cvt/2)) * cvt->rate_incr) * 2;
3744  register int eps = 0;
3745  Sint16 *dst = ((Sint16 *) (cvt->buf + dstsize)) - 1;
3746  const Sint16 *src = ((Sint16 *) (cvt->buf + cvt->len_cvt)) - 1;
3747  const Sint16 *target = ((const Sint16 *) cvt->buf);
3748  Sint16 sample0 = ((Sint16) SDL_SwapLE16(src[0]));
3749  Sint16 last_sample0 = sample0;
3750  while (dst >= target) {
3751  dst[0] = ((Sint16) SDL_SwapLE16(sample0));
3752  dst--;
3753  eps += srcsize;
3754  if ((eps << 1) >= dstsize) {
3755  src--;
3756  sample0 = (Sint16) ((((Sint32) ((Sint16) SDL_SwapLE16(src[0]))) + ((Sint32) last_sample0)) >> 1);
3757  last_sample0 = sample0;
3758  eps -= dstsize;
3759  }
3760  }
3761  cvt->len_cvt = dstsize;
3762  if (cvt->filters[++cvt->filter_index]) {
3763  cvt->filters[cvt->filter_index] (cvt, format);
3764  }
3765 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
SDL_AudioCVT::rate_incr
double rate_incr
Definition: SDL_audio.h:205
SDL_SwapLE16
#define SDL_SwapLE16(X)
Definition: SDL_endian.h:211
src
GLenum src
Definition: SDL_opengl_glext.h:1737
Sint16
int16_t Sint16
A signed 16-bit integer type.
Definition: SDL_stdinc.h:143
static void SDL_Upsample_S16LSB_1c_x2 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 9679 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_SwapLE16, and SDLCALL.

9680 {
9681 #if DEBUG_CONVERT
9682  fprintf(stderr, "Upsample (x2) AUDIO_S16LSB, 1 channels.\n");
9683 #endif
9684 
9685  const int dstsize = cvt->len_cvt * 2;
9686  Sint16 *dst = ((Sint16 *) (cvt->buf + dstsize)) - 1 * 2;
9687  const Sint16 *src = ((Sint16 *) (cvt->buf + cvt->len_cvt)) - 1;
9688  const Sint16 *target = ((const Sint16 *) cvt->buf);
9689  Sint32 last_sample0 = (Sint32) ((Sint16) SDL_SwapLE16(src[0]));
9690  while (dst >= target) {
9691  const Sint32 sample0 = (Sint32) ((Sint16) SDL_SwapLE16(src[0]));
9692  src--;
9693  dst[1] = (Sint16) ((sample0 + last_sample0) >> 1);
9694  dst[0] = (Sint16) sample0;
9695  last_sample0 = sample0;
9696  dst -= 2;
9697  }
9698 
9699  cvt->len_cvt = dstsize;
9700  if (cvt->filters[++cvt->filter_index]) {
9701  cvt->filters[cvt->filter_index] (cvt, format);
9702  }
9703 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
SDL_SwapLE16
#define SDL_SwapLE16(X)
Definition: SDL_endian.h:211
src
GLenum src
Definition: SDL_opengl_glext.h:1737
Sint16
int16_t Sint16
A signed 16-bit integer type.
Definition: SDL_stdinc.h:143
static void SDL_Upsample_S16LSB_1c_x4 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 9732 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_SwapLE16, and SDLCALL.

9733 {
9734 #if DEBUG_CONVERT
9735  fprintf(stderr, "Upsample (x4) AUDIO_S16LSB, 1 channels.\n");
9736 #endif
9737 
9738  const int dstsize = cvt->len_cvt * 4;
9739  Sint16 *dst = ((Sint16 *) (cvt->buf + dstsize)) - 1 * 4;
9740  const Sint16 *src = ((Sint16 *) (cvt->buf + cvt->len_cvt)) - 1;
9741  const Sint16 *target = ((const Sint16 *) cvt->buf);
9742  Sint32 last_sample0 = (Sint32) ((Sint16) SDL_SwapLE16(src[0]));
9743  while (dst >= target) {
9744  const Sint32 sample0 = (Sint32) ((Sint16) SDL_SwapLE16(src[0]));
9745  src--;
9746  dst[3] = (Sint16) ((sample0 + (3 * last_sample0)) >> 2);
9747  dst[2] = (Sint16) ((sample0 + last_sample0) >> 1);
9748  dst[1] = (Sint16) (((3 * sample0) + last_sample0) >> 2);
9749  dst[0] = (Sint16) sample0;
9750  last_sample0 = sample0;
9751  dst -= 4;
9752  }
9753 
9754  cvt->len_cvt = dstsize;
9755  if (cvt->filters[++cvt->filter_index]) {
9756  cvt->filters[cvt->filter_index] (cvt, format);
9757  }
9758 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
SDL_SwapLE16
#define SDL_SwapLE16(X)
Definition: SDL_endian.h:211
src
GLenum src
Definition: SDL_opengl_glext.h:1737
Sint16
int16_t Sint16
A signed 16-bit integer type.
Definition: SDL_stdinc.h:143
static void SDL_Upsample_S16LSB_2c ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 3800 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_AudioCVT::rate_incr, SDL_SwapLE16, and SDLCALL.

3801 {
3802 #if DEBUG_CONVERT
3803  fprintf(stderr, "Upsample arbitrary (x%f) AUDIO_S16LSB, 2 channels.\n", cvt->rate_incr);
3804 #endif
3805 
3806  const int srcsize = cvt->len_cvt - 64;
3807  const int dstsize = (int) (((double)(cvt->len_cvt/4)) * cvt->rate_incr) * 4;
3808  register int eps = 0;
3809  Sint16 *dst = ((Sint16 *) (cvt->buf + dstsize)) - 2;
3810  const Sint16 *src = ((Sint16 *) (cvt->buf + cvt->len_cvt)) - 2;
3811  const Sint16 *target = ((const Sint16 *) cvt->buf);
3812  Sint16 sample1 = ((Sint16) SDL_SwapLE16(src[1]));
3813  Sint16 sample0 = ((Sint16) SDL_SwapLE16(src[0]));
3814  Sint16 last_sample1 = sample1;
3815  Sint16 last_sample0 = sample0;
3816  while (dst >= target) {
3817  dst[1] = ((Sint16) SDL_SwapLE16(sample1));
3818  dst[0] = ((Sint16) SDL_SwapLE16(sample0));
3819  dst -= 2;
3820  eps += srcsize;
3821  if ((eps << 1) >= dstsize) {
3822  src -= 2;
3823  sample1 = (Sint16) ((((Sint32) ((Sint16) SDL_SwapLE16(src[1]))) + ((Sint32) last_sample1)) >> 1);
3824  sample0 = (Sint16) ((((Sint32) ((Sint16) SDL_SwapLE16(src[0]))) + ((Sint32) last_sample0)) >> 1);
3825  last_sample1 = sample1;
3826  last_sample0 = sample0;
3827  eps -= dstsize;
3828  }
3829  }
3830  cvt->len_cvt = dstsize;
3831  if (cvt->filters[++cvt->filter_index]) {
3832  cvt->filters[cvt->filter_index] (cvt, format);
3833  }
3834 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
SDL_AudioCVT::rate_incr
double rate_incr
Definition: SDL_audio.h:205
SDL_SwapLE16
#define SDL_SwapLE16(X)
Definition: SDL_endian.h:211
src
GLenum src
Definition: SDL_opengl_glext.h:1737
Sint16
int16_t Sint16
A signed 16-bit integer type.
Definition: SDL_stdinc.h:143
static void SDL_Upsample_S16LSB_2c_x2 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 9787 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_SwapLE16, and SDLCALL.

9788 {
9789 #if DEBUG_CONVERT
9790  fprintf(stderr, "Upsample (x2) AUDIO_S16LSB, 2 channels.\n");
9791 #endif
9792 
9793  const int dstsize = cvt->len_cvt * 2;
9794  Sint16 *dst = ((Sint16 *) (cvt->buf + dstsize)) - 2 * 2;
9795  const Sint16 *src = ((Sint16 *) (cvt->buf + cvt->len_cvt)) - 2;
9796  const Sint16 *target = ((const Sint16 *) cvt->buf);
9797  Sint32 last_sample1 = (Sint32) ((Sint16) SDL_SwapLE16(src[1]));
9798  Sint32 last_sample0 = (Sint32) ((Sint16) SDL_SwapLE16(src[0]));
9799  while (dst >= target) {
9800  const Sint32 sample1 = (Sint32) ((Sint16) SDL_SwapLE16(src[1]));
9801  const Sint32 sample0 = (Sint32) ((Sint16) SDL_SwapLE16(src[0]));
9802  src -= 2;
9803  dst[3] = (Sint16) ((sample1 + last_sample1) >> 1);
9804  dst[2] = (Sint16) ((sample0 + last_sample0) >> 1);
9805  dst[1] = (Sint16) sample1;
9806  dst[0] = (Sint16) sample0;
9807  last_sample1 = sample1;
9808  last_sample0 = sample0;
9809  dst -= 4;
9810  }
9811 
9812  cvt->len_cvt = dstsize;
9813  if (cvt->filters[++cvt->filter_index]) {
9814  cvt->filters[cvt->filter_index] (cvt, format);
9815  }
9816 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
SDL_SwapLE16
#define SDL_SwapLE16(X)
Definition: SDL_endian.h:211
src
GLenum src
Definition: SDL_opengl_glext.h:1737
Sint16
int16_t Sint16
A signed 16-bit integer type.
Definition: SDL_stdinc.h:143
static void SDL_Upsample_S16LSB_2c_x4 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 9849 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_SwapLE16, and SDLCALL.

9850 {
9851 #if DEBUG_CONVERT
9852  fprintf(stderr, "Upsample (x4) AUDIO_S16LSB, 2 channels.\n");
9853 #endif
9854 
9855  const int dstsize = cvt->len_cvt * 4;
9856  Sint16 *dst = ((Sint16 *) (cvt->buf + dstsize)) - 2 * 4;
9857  const Sint16 *src = ((Sint16 *) (cvt->buf + cvt->len_cvt)) - 2;
9858  const Sint16 *target = ((const Sint16 *) cvt->buf);
9859  Sint32 last_sample1 = (Sint32) ((Sint16) SDL_SwapLE16(src[1]));
9860  Sint32 last_sample0 = (Sint32) ((Sint16) SDL_SwapLE16(src[0]));
9861  while (dst >= target) {
9862  const Sint32 sample1 = (Sint32) ((Sint16) SDL_SwapLE16(src[1]));
9863  const Sint32 sample0 = (Sint32) ((Sint16) SDL_SwapLE16(src[0]));
9864  src -= 2;
9865  dst[7] = (Sint16) ((sample1 + (3 * last_sample1)) >> 2);
9866  dst[6] = (Sint16) ((sample0 + (3 * last_sample0)) >> 2);
9867  dst[5] = (Sint16) ((sample1 + last_sample1) >> 1);
9868  dst[4] = (Sint16) ((sample0 + last_sample0) >> 1);
9869  dst[3] = (Sint16) (((3 * sample1) + last_sample1) >> 2);
9870  dst[2] = (Sint16) (((3 * sample0) + last_sample0) >> 2);
9871  dst[1] = (Sint16) sample1;
9872  dst[0] = (Sint16) sample0;
9873  last_sample1 = sample1;
9874  last_sample0 = sample0;
9875  dst -= 8;
9876  }
9877 
9878  cvt->len_cvt = dstsize;
9879  if (cvt->filters[++cvt->filter_index]) {
9880  cvt->filters[cvt->filter_index] (cvt, format);
9881  }
9882 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
SDL_SwapLE16
#define SDL_SwapLE16(X)
Definition: SDL_endian.h:211
src
GLenum src
Definition: SDL_opengl_glext.h:1737
Sint16
int16_t Sint16
A signed 16-bit integer type.
Definition: SDL_stdinc.h:143
static void SDL_Upsample_S16LSB_4c ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 3874 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_AudioCVT::rate_incr, SDL_SwapLE16, and SDLCALL.

3875 {
3876 #if DEBUG_CONVERT
3877  fprintf(stderr, "Upsample arbitrary (x%f) AUDIO_S16LSB, 4 channels.\n", cvt->rate_incr);
3878 #endif
3879 
3880  const int srcsize = cvt->len_cvt - 128;
3881  const int dstsize = (int) (((double)(cvt->len_cvt/8)) * cvt->rate_incr) * 8;
3882  register int eps = 0;
3883  Sint16 *dst = ((Sint16 *) (cvt->buf + dstsize)) - 4;
3884  const Sint16 *src = ((Sint16 *) (cvt->buf + cvt->len_cvt)) - 4;
3885  const Sint16 *target = ((const Sint16 *) cvt->buf);
3886  Sint16 sample3 = ((Sint16) SDL_SwapLE16(src[3]));
3887  Sint16 sample2 = ((Sint16) SDL_SwapLE16(src[2]));
3888  Sint16 sample1 = ((Sint16) SDL_SwapLE16(src[1]));
3889  Sint16 sample0 = ((Sint16) SDL_SwapLE16(src[0]));
3890  Sint16 last_sample3 = sample3;
3891  Sint16 last_sample2 = sample2;
3892  Sint16 last_sample1 = sample1;
3893  Sint16 last_sample0 = sample0;
3894  while (dst >= target) {
3895  dst[3] = ((Sint16) SDL_SwapLE16(sample3));
3896  dst[2] = ((Sint16) SDL_SwapLE16(sample2));
3897  dst[1] = ((Sint16) SDL_SwapLE16(sample1));
3898  dst[0] = ((Sint16) SDL_SwapLE16(sample0));
3899  dst -= 4;
3900  eps += srcsize;
3901  if ((eps << 1) >= dstsize) {
3902  src -= 4;
3903  sample3 = (Sint16) ((((Sint32) ((Sint16) SDL_SwapLE16(src[3]))) + ((Sint32) last_sample3)) >> 1);
3904  sample2 = (Sint16) ((((Sint32) ((Sint16) SDL_SwapLE16(src[2]))) + ((Sint32) last_sample2)) >> 1);
3905  sample1 = (Sint16) ((((Sint32) ((Sint16) SDL_SwapLE16(src[1]))) + ((Sint32) last_sample1)) >> 1);
3906  sample0 = (Sint16) ((((Sint32) ((Sint16) SDL_SwapLE16(src[0]))) + ((Sint32) last_sample0)) >> 1);
3907  last_sample3 = sample3;
3908  last_sample2 = sample2;
3909  last_sample1 = sample1;
3910  last_sample0 = sample0;
3911  eps -= dstsize;
3912  }
3913  }
3914  cvt->len_cvt = dstsize;
3915  if (cvt->filters[++cvt->filter_index]) {
3916  cvt->filters[cvt->filter_index] (cvt, format);
3917  }
3918 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
SDL_AudioCVT::rate_incr
double rate_incr
Definition: SDL_audio.h:205
SDL_SwapLE16
#define SDL_SwapLE16(X)
Definition: SDL_endian.h:211
src
GLenum src
Definition: SDL_opengl_glext.h:1737
Sint16
int16_t Sint16
A signed 16-bit integer type.
Definition: SDL_stdinc.h:143
static void SDL_Upsample_S16LSB_4c_x2 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 9915 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_SwapLE16, and SDLCALL.

9916 {
9917 #if DEBUG_CONVERT
9918  fprintf(stderr, "Upsample (x2) AUDIO_S16LSB, 4 channels.\n");
9919 #endif
9920 
9921  const int dstsize = cvt->len_cvt * 2;
9922  Sint16 *dst = ((Sint16 *) (cvt->buf + dstsize)) - 4 * 2;
9923  const Sint16 *src = ((Sint16 *) (cvt->buf + cvt->len_cvt)) - 4;
9924  const Sint16 *target = ((const Sint16 *) cvt->buf);
9925  Sint32 last_sample3 = (Sint32) ((Sint16) SDL_SwapLE16(src[3]));
9926  Sint32 last_sample2 = (Sint32) ((Sint16) SDL_SwapLE16(src[2]));
9927  Sint32 last_sample1 = (Sint32) ((Sint16) SDL_SwapLE16(src[1]));
9928  Sint32 last_sample0 = (Sint32) ((Sint16) SDL_SwapLE16(src[0]));
9929  while (dst >= target) {
9930  const Sint32 sample3 = (Sint32) ((Sint16) SDL_SwapLE16(src[3]));
9931  const Sint32 sample2 = (Sint32) ((Sint16) SDL_SwapLE16(src[2]));
9932  const Sint32 sample1 = (Sint32) ((Sint16) SDL_SwapLE16(src[1]));
9933  const Sint32 sample0 = (Sint32) ((Sint16) SDL_SwapLE16(src[0]));
9934  src -= 4;
9935  dst[7] = (Sint16) ((sample3 + last_sample3) >> 1);
9936  dst[6] = (Sint16) ((sample2 + last_sample2) >> 1);
9937  dst[5] = (Sint16) ((sample1 + last_sample1) >> 1);
9938  dst[4] = (Sint16) ((sample0 + last_sample0) >> 1);
9939  dst[3] = (Sint16) sample3;
9940  dst[2] = (Sint16) sample2;
9941  dst[1] = (Sint16) sample1;
9942  dst[0] = (Sint16) sample0;
9943  last_sample3 = sample3;
9944  last_sample2 = sample2;
9945  last_sample1 = sample1;
9946  last_sample0 = sample0;
9947  dst -= 8;
9948  }
9949 
9950  cvt->len_cvt = dstsize;
9951  if (cvt->filters[++cvt->filter_index]) {
9952  cvt->filters[cvt->filter_index] (cvt, format);
9953  }
9954 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
SDL_SwapLE16
#define SDL_SwapLE16(X)
Definition: SDL_endian.h:211
src
GLenum src
Definition: SDL_opengl_glext.h:1737
Sint16
int16_t Sint16
A signed 16-bit integer type.
Definition: SDL_stdinc.h:143
static void SDL_Upsample_S16LSB_4c_x4 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 9995 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_SwapLE16, and SDLCALL.

9996 {
9997 #if DEBUG_CONVERT
9998  fprintf(stderr, "Upsample (x4) AUDIO_S16LSB, 4 channels.\n");
9999 #endif
10000 
10001  const int dstsize = cvt->len_cvt * 4;
10002  Sint16 *dst = ((Sint16 *) (cvt->buf + dstsize)) - 4 * 4;
10003  const Sint16 *src = ((Sint16 *) (cvt->buf + cvt->len_cvt)) - 4;
10004  const Sint16 *target = ((const Sint16 *) cvt->buf);
10005  Sint32 last_sample3 = (Sint32) ((Sint16) SDL_SwapLE16(src[3]));
10006  Sint32 last_sample2 = (Sint32) ((Sint16) SDL_SwapLE16(src[2]));
10007  Sint32 last_sample1 = (Sint32) ((Sint16) SDL_SwapLE16(src[1]));
10008  Sint32 last_sample0 = (Sint32) ((Sint16) SDL_SwapLE16(src[0]));
10009  while (dst >= target) {
10010  const Sint32 sample3 = (Sint32) ((Sint16) SDL_SwapLE16(src[3]));
10011  const Sint32 sample2 = (Sint32) ((Sint16) SDL_SwapLE16(src[2]));
10012  const Sint32 sample1 = (Sint32) ((Sint16) SDL_SwapLE16(src[1]));
10013  const Sint32 sample0 = (Sint32) ((Sint16) SDL_SwapLE16(src[0]));
10014  src -= 4;
10015  dst[15] = (Sint16) ((sample3 + (3 * last_sample3)) >> 2);
10016  dst[14] = (Sint16) ((sample2 + (3 * last_sample2)) >> 2);
10017  dst[13] = (Sint16) ((sample1 + (3 * last_sample1)) >> 2);
10018  dst[12] = (Sint16) ((sample0 + (3 * last_sample0)) >> 2);
10019  dst[11] = (Sint16) ((sample3 + last_sample3) >> 1);
10020  dst[10] = (Sint16) ((sample2 + last_sample2) >> 1);
10021  dst[9] = (Sint16) ((sample1 + last_sample1) >> 1);
10022  dst[8] = (Sint16) ((sample0 + last_sample0) >> 1);
10023  dst[7] = (Sint16) (((3 * sample3) + last_sample3) >> 2);
10024  dst[6] = (Sint16) (((3 * sample2) + last_sample2) >> 2);
10025  dst[5] = (Sint16) (((3 * sample1) + last_sample1) >> 2);
10026  dst[4] = (Sint16) (((3 * sample0) + last_sample0) >> 2);
10027  dst[3] = (Sint16) sample3;
10028  dst[2] = (Sint16) sample2;
10029  dst[1] = (Sint16) sample1;
10030  dst[0] = (Sint16) sample0;
10031  last_sample3 = sample3;
10032  last_sample2 = sample2;
10033  last_sample1 = sample1;
10034  last_sample0 = sample0;
10035  dst -= 16;
10036  }
10037 
10038  cvt->len_cvt = dstsize;
10039  if (cvt->filters[++cvt->filter_index]) {
10040  cvt->filters[cvt->filter_index] (cvt, format);
10041  }
10042 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
SDL_SwapLE16
#define SDL_SwapLE16(X)
Definition: SDL_endian.h:211
src
GLenum src
Definition: SDL_opengl_glext.h:1737
Sint16
int16_t Sint16
A signed 16-bit integer type.
Definition: SDL_stdinc.h:143
static void SDL_Upsample_S16LSB_6c ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 3968 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_AudioCVT::rate_incr, SDL_SwapLE16, and SDLCALL.

3969 {
3970 #if DEBUG_CONVERT
3971  fprintf(stderr, "Upsample arbitrary (x%f) AUDIO_S16LSB, 6 channels.\n", cvt->rate_incr);
3972 #endif
3973 
3974  const int srcsize = cvt->len_cvt - 192;
3975  const int dstsize = (int) (((double)(cvt->len_cvt/12)) * cvt->rate_incr) * 12;
3976  register int eps = 0;
3977  Sint16 *dst = ((Sint16 *) (cvt->buf + dstsize)) - 6;
3978  const Sint16 *src = ((Sint16 *) (cvt->buf + cvt->len_cvt)) - 6;
3979  const Sint16 *target = ((const Sint16 *) cvt->buf);
3980  Sint16 sample5 = ((Sint16) SDL_SwapLE16(src[5]));
3981  Sint16 sample4 = ((Sint16) SDL_SwapLE16(src[4]));
3982  Sint16 sample3 = ((Sint16) SDL_SwapLE16(src[3]));
3983  Sint16 sample2 = ((Sint16) SDL_SwapLE16(src[2]));
3984  Sint16 sample1 = ((Sint16) SDL_SwapLE16(src[1]));
3985  Sint16 sample0 = ((Sint16) SDL_SwapLE16(src[0]));
3986  Sint16 last_sample5 = sample5;
3987  Sint16 last_sample4 = sample4;
3988  Sint16 last_sample3 = sample3;
3989  Sint16 last_sample2 = sample2;
3990  Sint16 last_sample1 = sample1;
3991  Sint16 last_sample0 = sample0;
3992  while (dst >= target) {
3993  dst[5] = ((Sint16) SDL_SwapLE16(sample5));
3994  dst[4] = ((Sint16) SDL_SwapLE16(sample4));
3995  dst[3] = ((Sint16) SDL_SwapLE16(sample3));
3996  dst[2] = ((Sint16) SDL_SwapLE16(sample2));
3997  dst[1] = ((Sint16) SDL_SwapLE16(sample1));
3998  dst[0] = ((Sint16) SDL_SwapLE16(sample0));
3999  dst -= 6;
4000  eps += srcsize;
4001  if ((eps << 1) >= dstsize) {
4002  src -= 6;
4003  sample5 = (Sint16) ((((Sint32) ((Sint16) SDL_SwapLE16(src[5]))) + ((Sint32) last_sample5)) >> 1);
4004  sample4 = (Sint16) ((((Sint32) ((Sint16) SDL_SwapLE16(src[4]))) + ((Sint32) last_sample4)) >> 1);
4005  sample3 = (Sint16) ((((Sint32) ((Sint16) SDL_SwapLE16(src[3]))) + ((Sint32) last_sample3)) >> 1);
4006  sample2 = (Sint16) ((((Sint32) ((Sint16) SDL_SwapLE16(src[2]))) + ((Sint32) last_sample2)) >> 1);
4007  sample1 = (Sint16) ((((Sint32) ((Sint16) SDL_SwapLE16(src[1]))) + ((Sint32) last_sample1)) >> 1);
4008  sample0 = (Sint16) ((((Sint32) ((Sint16) SDL_SwapLE16(src[0]))) + ((Sint32) last_sample0)) >> 1);
4009  last_sample5 = sample5;
4010  last_sample4 = sample4;
4011  last_sample3 = sample3;
4012  last_sample2 = sample2;
4013  last_sample1 = sample1;
4014  last_sample0 = sample0;
4015  eps -= dstsize;
4016  }
4017  }
4018  cvt->len_cvt = dstsize;
4019  if (cvt->filters[++cvt->filter_index]) {
4020  cvt->filters[cvt->filter_index] (cvt, format);
4021  }
4022 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
SDL_AudioCVT::rate_incr
double rate_incr
Definition: SDL_audio.h:205
SDL_SwapLE16
#define SDL_SwapLE16(X)
Definition: SDL_endian.h:211
src
GLenum src
Definition: SDL_opengl_glext.h:1737
Sint16
int16_t Sint16
A signed 16-bit integer type.
Definition: SDL_stdinc.h:143
static void SDL_Upsample_S16LSB_6c_x2 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 10083 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_SwapLE16, and SDLCALL.

10084 {
10085 #if DEBUG_CONVERT
10086  fprintf(stderr, "Upsample (x2) AUDIO_S16LSB, 6 channels.\n");
10087 #endif
10088 
10089  const int dstsize = cvt->len_cvt * 2;
10090  Sint16 *dst = ((Sint16 *) (cvt->buf + dstsize)) - 6 * 2;
10091  const Sint16 *src = ((Sint16 *) (cvt->buf + cvt->len_cvt)) - 6;
10092  const Sint16 *target = ((const Sint16 *) cvt->buf);
10093  Sint32 last_sample5 = (Sint32) ((Sint16) SDL_SwapLE16(src[5]));
10094  Sint32 last_sample4 = (Sint32) ((Sint16) SDL_SwapLE16(src[4]));
10095  Sint32 last_sample3 = (Sint32) ((Sint16) SDL_SwapLE16(src[3]));
10096  Sint32 last_sample2 = (Sint32) ((Sint16) SDL_SwapLE16(src[2]));
10097  Sint32 last_sample1 = (Sint32) ((Sint16) SDL_SwapLE16(src[1]));
10098  Sint32 last_sample0 = (Sint32) ((Sint16) SDL_SwapLE16(src[0]));
10099  while (dst >= target) {
10100  const Sint32 sample5 = (Sint32) ((Sint16) SDL_SwapLE16(src[5]));
10101  const Sint32 sample4 = (Sint32) ((Sint16) SDL_SwapLE16(src[4]));
10102  const Sint32 sample3 = (Sint32) ((Sint16) SDL_SwapLE16(src[3]));
10103  const Sint32 sample2 = (Sint32) ((Sint16) SDL_SwapLE16(src[2]));
10104  const Sint32 sample1 = (Sint32) ((Sint16) SDL_SwapLE16(src[1]));
10105  const Sint32 sample0 = (Sint32) ((Sint16) SDL_SwapLE16(src[0]));
10106  src -= 6;
10107  dst[11] = (Sint16) ((sample5 + last_sample5) >> 1);
10108  dst[10] = (Sint16) ((sample4 + last_sample4) >> 1);
10109  dst[9] = (Sint16) ((sample3 + last_sample3) >> 1);
10110  dst[8] = (Sint16) ((sample2 + last_sample2) >> 1);
10111  dst[7] = (Sint16) ((sample1 + last_sample1) >> 1);
10112  dst[6] = (Sint16) ((sample0 + last_sample0) >> 1);
10113  dst[5] = (Sint16) sample5;
10114  dst[4] = (Sint16) sample4;
10115  dst[3] = (Sint16) sample3;
10116  dst[2] = (Sint16) sample2;
10117  dst[1] = (Sint16) sample1;
10118  dst[0] = (Sint16) sample0;
10119  last_sample5 = sample5;
10120  last_sample4 = sample4;
10121  last_sample3 = sample3;
10122  last_sample2 = sample2;
10123  last_sample1 = sample1;
10124  last_sample0 = sample0;
10125  dst -= 12;
10126  }
10127 
10128  cvt->len_cvt = dstsize;
10129  if (cvt->filters[++cvt->filter_index]) {
10130  cvt->filters[cvt->filter_index] (cvt, format);
10131  }
10132 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
SDL_SwapLE16
#define SDL_SwapLE16(X)
Definition: SDL_endian.h:211
src
GLenum src
Definition: SDL_opengl_glext.h:1737
Sint16
int16_t Sint16
A signed 16-bit integer type.
Definition: SDL_stdinc.h:143
static void SDL_Upsample_S16LSB_6c_x4 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 10181 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_SwapLE16, and SDLCALL.

10182 {
10183 #if DEBUG_CONVERT
10184  fprintf(stderr, "Upsample (x4) AUDIO_S16LSB, 6 channels.\n");
10185 #endif
10186 
10187  const int dstsize = cvt->len_cvt * 4;
10188  Sint16 *dst = ((Sint16 *) (cvt->buf + dstsize)) - 6 * 4;
10189  const Sint16 *src = ((Sint16 *) (cvt->buf + cvt->len_cvt)) - 6;
10190  const Sint16 *target = ((const Sint16 *) cvt->buf);
10191  Sint32 last_sample5 = (Sint32) ((Sint16) SDL_SwapLE16(src[5]));
10192  Sint32 last_sample4 = (Sint32) ((Sint16) SDL_SwapLE16(src[4]));
10193  Sint32 last_sample3 = (Sint32) ((Sint16) SDL_SwapLE16(src[3]));
10194  Sint32 last_sample2 = (Sint32) ((Sint16) SDL_SwapLE16(src[2]));
10195  Sint32 last_sample1 = (Sint32) ((Sint16) SDL_SwapLE16(src[1]));
10196  Sint32 last_sample0 = (Sint32) ((Sint16) SDL_SwapLE16(src[0]));
10197  while (dst >= target) {
10198  const Sint32 sample5 = (Sint32) ((Sint16) SDL_SwapLE16(src[5]));
10199  const Sint32 sample4 = (Sint32) ((Sint16) SDL_SwapLE16(src[4]));
10200  const Sint32 sample3 = (Sint32) ((Sint16) SDL_SwapLE16(src[3]));
10201  const Sint32 sample2 = (Sint32) ((Sint16) SDL_SwapLE16(src[2]));
10202  const Sint32 sample1 = (Sint32) ((Sint16) SDL_SwapLE16(src[1]));
10203  const Sint32 sample0 = (Sint32) ((Sint16) SDL_SwapLE16(src[0]));
10204  src -= 6;
10205  dst[23] = (Sint16) ((sample5 + (3 * last_sample5)) >> 2);
10206  dst[22] = (Sint16) ((sample4 + (3 * last_sample4)) >> 2);
10207  dst[21] = (Sint16) ((sample3 + (3 * last_sample3)) >> 2);
10208  dst[20] = (Sint16) ((sample2 + (3 * last_sample2)) >> 2);
10209  dst[19] = (Sint16) ((sample1 + (3 * last_sample1)) >> 2);
10210  dst[18] = (Sint16) ((sample0 + (3 * last_sample0)) >> 2);
10211  dst[17] = (Sint16) ((sample5 + last_sample5) >> 1);
10212  dst[16] = (Sint16) ((sample4 + last_sample4) >> 1);
10213  dst[15] = (Sint16) ((sample3 + last_sample3) >> 1);
10214  dst[14] = (Sint16) ((sample2 + last_sample2) >> 1);
10215  dst[13] = (Sint16) ((sample1 + last_sample1) >> 1);
10216  dst[12] = (Sint16) ((sample0 + last_sample0) >> 1);
10217  dst[11] = (Sint16) (((3 * sample5) + last_sample5) >> 2);
10218  dst[10] = (Sint16) (((3 * sample4) + last_sample4) >> 2);
10219  dst[9] = (Sint16) (((3 * sample3) + last_sample3) >> 2);
10220  dst[8] = (Sint16) (((3 * sample2) + last_sample2) >> 2);
10221  dst[7] = (Sint16) (((3 * sample1) + last_sample1) >> 2);
10222  dst[6] = (Sint16) (((3 * sample0) + last_sample0) >> 2);
10223  dst[5] = (Sint16) sample5;
10224  dst[4] = (Sint16) sample4;
10225  dst[3] = (Sint16) sample3;
10226  dst[2] = (Sint16) sample2;
10227  dst[1] = (Sint16) sample1;
10228  dst[0] = (Sint16) sample0;
10229  last_sample5 = sample5;
10230  last_sample4 = sample4;
10231  last_sample3 = sample3;
10232  last_sample2 = sample2;
10233  last_sample1 = sample1;
10234  last_sample0 = sample0;
10235  dst -= 24;
10236  }
10237 
10238  cvt->len_cvt = dstsize;
10239  if (cvt->filters[++cvt->filter_index]) {
10240  cvt->filters[cvt->filter_index] (cvt, format);
10241  }
10242 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
SDL_SwapLE16
#define SDL_SwapLE16(X)
Definition: SDL_endian.h:211
src
GLenum src
Definition: SDL_opengl_glext.h:1737
Sint16
int16_t Sint16
A signed 16-bit integer type.
Definition: SDL_stdinc.h:143
static void SDL_Upsample_S16LSB_8c ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 4082 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_AudioCVT::rate_incr, SDL_SwapLE16, and SDLCALL.

4083 {
4084 #if DEBUG_CONVERT
4085  fprintf(stderr, "Upsample arbitrary (x%f) AUDIO_S16LSB, 8 channels.\n", cvt->rate_incr);
4086 #endif
4087 
4088  const int srcsize = cvt->len_cvt - 256;
4089  const int dstsize = (int) (((double)(cvt->len_cvt/16)) * cvt->rate_incr) * 16;
4090  register int eps = 0;
4091  Sint16 *dst = ((Sint16 *) (cvt->buf + dstsize)) - 8;
4092  const Sint16 *src = ((Sint16 *) (cvt->buf + cvt->len_cvt)) - 8;
4093  const Sint16 *target = ((const Sint16 *) cvt->buf);
4094  Sint16 sample7 = ((Sint16) SDL_SwapLE16(src[7]));
4095  Sint16 sample6 = ((Sint16) SDL_SwapLE16(src[6]));
4096  Sint16 sample5 = ((Sint16) SDL_SwapLE16(src[5]));
4097  Sint16 sample4 = ((Sint16) SDL_SwapLE16(src[4]));
4098  Sint16 sample3 = ((Sint16) SDL_SwapLE16(src[3]));
4099  Sint16 sample2 = ((Sint16) SDL_SwapLE16(src[2]));
4100  Sint16 sample1 = ((Sint16) SDL_SwapLE16(src[1]));
4101  Sint16 sample0 = ((Sint16) SDL_SwapLE16(src[0]));
4102  Sint16 last_sample7 = sample7;
4103  Sint16 last_sample6 = sample6;
4104  Sint16 last_sample5 = sample5;
4105  Sint16 last_sample4 = sample4;
4106  Sint16 last_sample3 = sample3;
4107  Sint16 last_sample2 = sample2;
4108  Sint16 last_sample1 = sample1;
4109  Sint16 last_sample0 = sample0;
4110  while (dst >= target) {
4111  dst[7] = ((Sint16) SDL_SwapLE16(sample7));
4112  dst[6] = ((Sint16) SDL_SwapLE16(sample6));
4113  dst[5] = ((Sint16) SDL_SwapLE16(sample5));
4114  dst[4] = ((Sint16) SDL_SwapLE16(sample4));
4115  dst[3] = ((Sint16) SDL_SwapLE16(sample3));
4116  dst[2] = ((Sint16) SDL_SwapLE16(sample2));
4117  dst[1] = ((Sint16) SDL_SwapLE16(sample1));
4118  dst[0] = ((Sint16) SDL_SwapLE16(sample0));
4119  dst -= 8;
4120  eps += srcsize;
4121  if ((eps << 1) >= dstsize) {
4122  src -= 8;
4123  sample7 = (Sint16) ((((Sint32) ((Sint16) SDL_SwapLE16(src[7]))) + ((Sint32) last_sample7)) >> 1);
4124  sample6 = (Sint16) ((((Sint32) ((Sint16) SDL_SwapLE16(src[6]))) + ((Sint32) last_sample6)) >> 1);
4125  sample5 = (Sint16) ((((Sint32) ((Sint16) SDL_SwapLE16(src[5]))) + ((Sint32) last_sample5)) >> 1);
4126  sample4 = (Sint16) ((((Sint32) ((Sint16) SDL_SwapLE16(src[4]))) + ((Sint32) last_sample4)) >> 1);
4127  sample3 = (Sint16) ((((Sint32) ((Sint16) SDL_SwapLE16(src[3]))) + ((Sint32) last_sample3)) >> 1);
4128  sample2 = (Sint16) ((((Sint32) ((Sint16) SDL_SwapLE16(src[2]))) + ((Sint32) last_sample2)) >> 1);
4129  sample1 = (Sint16) ((((Sint32) ((Sint16) SDL_SwapLE16(src[1]))) + ((Sint32) last_sample1)) >> 1);
4130  sample0 = (Sint16) ((((Sint32) ((Sint16) SDL_SwapLE16(src[0]))) + ((Sint32) last_sample0)) >> 1);
4131  last_sample7 = sample7;
4132  last_sample6 = sample6;
4133  last_sample5 = sample5;
4134  last_sample4 = sample4;
4135  last_sample3 = sample3;
4136  last_sample2 = sample2;
4137  last_sample1 = sample1;
4138  last_sample0 = sample0;
4139  eps -= dstsize;
4140  }
4141  }
4142  cvt->len_cvt = dstsize;
4143  if (cvt->filters[++cvt->filter_index]) {
4144  cvt->filters[cvt->filter_index] (cvt, format);
4145  }
4146 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
SDL_AudioCVT::rate_incr
double rate_incr
Definition: SDL_audio.h:205
SDL_SwapLE16
#define SDL_SwapLE16(X)
Definition: SDL_endian.h:211
src
GLenum src
Definition: SDL_opengl_glext.h:1737
Sint16
int16_t Sint16
A signed 16-bit integer type.
Definition: SDL_stdinc.h:143
static void SDL_Upsample_S16LSB_8c_x2 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 10291 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_SwapLE16, and SDLCALL.

10292 {
10293 #if DEBUG_CONVERT
10294  fprintf(stderr, "Upsample (x2) AUDIO_S16LSB, 8 channels.\n");
10295 #endif
10296 
10297  const int dstsize = cvt->len_cvt * 2;
10298  Sint16 *dst = ((Sint16 *) (cvt->buf + dstsize)) - 8 * 2;
10299  const Sint16 *src = ((Sint16 *) (cvt->buf + cvt->len_cvt)) - 8;
10300  const Sint16 *target = ((const Sint16 *) cvt->buf);
10301  Sint32 last_sample7 = (Sint32) ((Sint16) SDL_SwapLE16(src[7]));
10302  Sint32 last_sample6 = (Sint32) ((Sint16) SDL_SwapLE16(src[6]));
10303  Sint32 last_sample5 = (Sint32) ((Sint16) SDL_SwapLE16(src[5]));
10304  Sint32 last_sample4 = (Sint32) ((Sint16) SDL_SwapLE16(src[4]));
10305  Sint32 last_sample3 = (Sint32) ((Sint16) SDL_SwapLE16(src[3]));
10306  Sint32 last_sample2 = (Sint32) ((Sint16) SDL_SwapLE16(src[2]));
10307  Sint32 last_sample1 = (Sint32) ((Sint16) SDL_SwapLE16(src[1]));
10308  Sint32 last_sample0 = (Sint32) ((Sint16) SDL_SwapLE16(src[0]));
10309  while (dst >= target) {
10310  const Sint32 sample7 = (Sint32) ((Sint16) SDL_SwapLE16(src[7]));
10311  const Sint32 sample6 = (Sint32) ((Sint16) SDL_SwapLE16(src[6]));
10312  const Sint32 sample5 = (Sint32) ((Sint16) SDL_SwapLE16(src[5]));
10313  const Sint32 sample4 = (Sint32) ((Sint16) SDL_SwapLE16(src[4]));
10314  const Sint32 sample3 = (Sint32) ((Sint16) SDL_SwapLE16(src[3]));
10315  const Sint32 sample2 = (Sint32) ((Sint16) SDL_SwapLE16(src[2]));
10316  const Sint32 sample1 = (Sint32) ((Sint16) SDL_SwapLE16(src[1]));
10317  const Sint32 sample0 = (Sint32) ((Sint16) SDL_SwapLE16(src[0]));
10318  src -= 8;
10319  dst[15] = (Sint16) ((sample7 + last_sample7) >> 1);
10320  dst[14] = (Sint16) ((sample6 + last_sample6) >> 1);
10321  dst[13] = (Sint16) ((sample5 + last_sample5) >> 1);
10322  dst[12] = (Sint16) ((sample4 + last_sample4) >> 1);
10323  dst[11] = (Sint16) ((sample3 + last_sample3) >> 1);
10324  dst[10] = (Sint16) ((sample2 + last_sample2) >> 1);
10325  dst[9] = (Sint16) ((sample1 + last_sample1) >> 1);
10326  dst[8] = (Sint16) ((sample0 + last_sample0) >> 1);
10327  dst[7] = (Sint16) sample7;
10328  dst[6] = (Sint16) sample6;
10329  dst[5] = (Sint16) sample5;
10330  dst[4] = (Sint16) sample4;
10331  dst[3] = (Sint16) sample3;
10332  dst[2] = (Sint16) sample2;
10333  dst[1] = (Sint16) sample1;
10334  dst[0] = (Sint16) sample0;
10335  last_sample7 = sample7;
10336  last_sample6 = sample6;
10337  last_sample5 = sample5;
10338  last_sample4 = sample4;
10339  last_sample3 = sample3;
10340  last_sample2 = sample2;
10341  last_sample1 = sample1;
10342  last_sample0 = sample0;
10343  dst -= 16;
10344  }
10345 
10346  cvt->len_cvt = dstsize;
10347  if (cvt->filters[++cvt->filter_index]) {
10348  cvt->filters[cvt->filter_index] (cvt, format);
10349  }
10350 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
SDL_SwapLE16
#define SDL_SwapLE16(X)
Definition: SDL_endian.h:211
src
GLenum src
Definition: SDL_opengl_glext.h:1737
Sint16
int16_t Sint16
A signed 16-bit integer type.
Definition: SDL_stdinc.h:143
static void SDL_Upsample_S16LSB_8c_x4 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 10407 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_SwapLE16, and SDLCALL.

10408 {
10409 #if DEBUG_CONVERT
10410  fprintf(stderr, "Upsample (x4) AUDIO_S16LSB, 8 channels.\n");
10411 #endif
10412 
10413  const int dstsize = cvt->len_cvt * 4;
10414  Sint16 *dst = ((Sint16 *) (cvt->buf + dstsize)) - 8 * 4;
10415  const Sint16 *src = ((Sint16 *) (cvt->buf + cvt->len_cvt)) - 8;
10416  const Sint16 *target = ((const Sint16 *) cvt->buf);
10417  Sint32 last_sample7 = (Sint32) ((Sint16) SDL_SwapLE16(src[7]));
10418  Sint32 last_sample6 = (Sint32) ((Sint16) SDL_SwapLE16(src[6]));
10419  Sint32 last_sample5 = (Sint32) ((Sint16) SDL_SwapLE16(src[5]));
10420  Sint32 last_sample4 = (Sint32) ((Sint16) SDL_SwapLE16(src[4]));
10421  Sint32 last_sample3 = (Sint32) ((Sint16) SDL_SwapLE16(src[3]));
10422  Sint32 last_sample2 = (Sint32) ((Sint16) SDL_SwapLE16(src[2]));
10423  Sint32 last_sample1 = (Sint32) ((Sint16) SDL_SwapLE16(src[1]));
10424  Sint32 last_sample0 = (Sint32) ((Sint16) SDL_SwapLE16(src[0]));
10425  while (dst >= target) {
10426  const Sint32 sample7 = (Sint32) ((Sint16) SDL_SwapLE16(src[7]));
10427  const Sint32 sample6 = (Sint32) ((Sint16) SDL_SwapLE16(src[6]));
10428  const Sint32 sample5 = (Sint32) ((Sint16) SDL_SwapLE16(src[5]));
10429  const Sint32 sample4 = (Sint32) ((Sint16) SDL_SwapLE16(src[4]));
10430  const Sint32 sample3 = (Sint32) ((Sint16) SDL_SwapLE16(src[3]));
10431  const Sint32 sample2 = (Sint32) ((Sint16) SDL_SwapLE16(src[2]));
10432  const Sint32 sample1 = (Sint32) ((Sint16) SDL_SwapLE16(src[1]));
10433  const Sint32 sample0 = (Sint32) ((Sint16) SDL_SwapLE16(src[0]));
10434  src -= 8;
10435  dst[31] = (Sint16) ((sample7 + (3 * last_sample7)) >> 2);
10436  dst[30] = (Sint16) ((sample6 + (3 * last_sample6)) >> 2);
10437  dst[29] = (Sint16) ((sample5 + (3 * last_sample5)) >> 2);
10438  dst[28] = (Sint16) ((sample4 + (3 * last_sample4)) >> 2);
10439  dst[27] = (Sint16) ((sample3 + (3 * last_sample3)) >> 2);
10440  dst[26] = (Sint16) ((sample2 + (3 * last_sample2)) >> 2);
10441  dst[25] = (Sint16) ((sample1 + (3 * last_sample1)) >> 2);
10442  dst[24] = (Sint16) ((sample0 + (3 * last_sample0)) >> 2);
10443  dst[23] = (Sint16) ((sample7 + last_sample7) >> 1);
10444  dst[22] = (Sint16) ((sample6 + last_sample6) >> 1);
10445  dst[21] = (Sint16) ((sample5 + last_sample5) >> 1);
10446  dst[20] = (Sint16) ((sample4 + last_sample4) >> 1);
10447  dst[19] = (Sint16) ((sample3 + last_sample3) >> 1);
10448  dst[18] = (Sint16) ((sample2 + last_sample2) >> 1);
10449  dst[17] = (Sint16) ((sample1 + last_sample1) >> 1);
10450  dst[16] = (Sint16) ((sample0 + last_sample0) >> 1);
10451  dst[15] = (Sint16) (((3 * sample7) + last_sample7) >> 2);
10452  dst[14] = (Sint16) (((3 * sample6) + last_sample6) >> 2);
10453  dst[13] = (Sint16) (((3 * sample5) + last_sample5) >> 2);
10454  dst[12] = (Sint16) (((3 * sample4) + last_sample4) >> 2);
10455  dst[11] = (Sint16) (((3 * sample3) + last_sample3) >> 2);
10456  dst[10] = (Sint16) (((3 * sample2) + last_sample2) >> 2);
10457  dst[9] = (Sint16) (((3 * sample1) + last_sample1) >> 2);
10458  dst[8] = (Sint16) (((3 * sample0) + last_sample0) >> 2);
10459  dst[7] = (Sint16) sample7;
10460  dst[6] = (Sint16) sample6;
10461  dst[5] = (Sint16) sample5;
10462  dst[4] = (Sint16) sample4;
10463  dst[3] = (Sint16) sample3;
10464  dst[2] = (Sint16) sample2;
10465  dst[1] = (Sint16) sample1;
10466  dst[0] = (Sint16) sample0;
10467  last_sample7 = sample7;
10468  last_sample6 = sample6;
10469  last_sample5 = sample5;
10470  last_sample4 = sample4;
10471  last_sample3 = sample3;
10472  last_sample2 = sample2;
10473  last_sample1 = sample1;
10474  last_sample0 = sample0;
10475  dst -= 32;
10476  }
10477 
10478  cvt->len_cvt = dstsize;
10479  if (cvt->filters[++cvt->filter_index]) {
10480  cvt->filters[cvt->filter_index] (cvt, format);
10481  }
10482 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
SDL_SwapLE16
#define SDL_SwapLE16(X)
Definition: SDL_endian.h:211
src
GLenum src
Definition: SDL_opengl_glext.h:1737
Sint16
int16_t Sint16
A signed 16-bit integer type.
Definition: SDL_stdinc.h:143
static void SDL_Upsample_S16MSB_1c ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 4696 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_AudioCVT::rate_incr, SDL_SwapBE16, and SDLCALL.

4697 {
4698 #if DEBUG_CONVERT
4699  fprintf(stderr, "Upsample arbitrary (x%f) AUDIO_S16MSB, 1 channels.\n", cvt->rate_incr);
4700 #endif
4701 
4702  const int srcsize = cvt->len_cvt - 32;
4703  const int dstsize = (int) (((double)(cvt->len_cvt/2)) * cvt->rate_incr) * 2;
4704  register int eps = 0;
4705  Sint16 *dst = ((Sint16 *) (cvt->buf + dstsize)) - 1;
4706  const Sint16 *src = ((Sint16 *) (cvt->buf + cvt->len_cvt)) - 1;
4707  const Sint16 *target = ((const Sint16 *) cvt->buf);
4708  Sint16 sample0 = ((Sint16) SDL_SwapBE16(src[0]));
4709  Sint16 last_sample0 = sample0;
4710  while (dst >= target) {
4711  dst[0] = ((Sint16) SDL_SwapBE16(sample0));
4712  dst--;
4713  eps += srcsize;
4714  if ((eps << 1) >= dstsize) {
4715  src--;
4716  sample0 = (Sint16) ((((Sint32) ((Sint16) SDL_SwapBE16(src[0]))) + ((Sint32) last_sample0)) >> 1);
4717  last_sample0 = sample0;
4718  eps -= dstsize;
4719  }
4720  }
4721  cvt->len_cvt = dstsize;
4722  if (cvt->filters[++cvt->filter_index]) {
4723  cvt->filters[cvt->filter_index] (cvt, format);
4724  }
4725 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_SwapBE16
#define SDL_SwapBE16(X)
Definition: SDL_endian.h:215
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
SDL_AudioCVT::rate_incr
double rate_incr
Definition: SDL_audio.h:205
src
GLenum src
Definition: SDL_opengl_glext.h:1737
Sint16
int16_t Sint16
A signed 16-bit integer type.
Definition: SDL_stdinc.h:143
static void SDL_Upsample_S16MSB_1c_x2 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 11399 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_SwapBE16, and SDLCALL.

11400 {
11401 #if DEBUG_CONVERT
11402  fprintf(stderr, "Upsample (x2) AUDIO_S16MSB, 1 channels.\n");
11403 #endif
11404 
11405  const int dstsize = cvt->len_cvt * 2;
11406  Sint16 *dst = ((Sint16 *) (cvt->buf + dstsize)) - 1 * 2;
11407  const Sint16 *src = ((Sint16 *) (cvt->buf + cvt->len_cvt)) - 1;
11408  const Sint16 *target = ((const Sint16 *) cvt->buf);
11409  Sint32 last_sample0 = (Sint32) ((Sint16) SDL_SwapBE16(src[0]));
11410  while (dst >= target) {
11411  const Sint32 sample0 = (Sint32) ((Sint16) SDL_SwapBE16(src[0]));
11412  src--;
11413  dst[1] = (Sint16) ((sample0 + last_sample0) >> 1);
11414  dst[0] = (Sint16) sample0;
11415  last_sample0 = sample0;
11416  dst -= 2;
11417  }
11418 
11419  cvt->len_cvt = dstsize;
11420  if (cvt->filters[++cvt->filter_index]) {
11421  cvt->filters[cvt->filter_index] (cvt, format);
11422  }
11423 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_SwapBE16
#define SDL_SwapBE16(X)
Definition: SDL_endian.h:215
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
src
GLenum src
Definition: SDL_opengl_glext.h:1737
Sint16
int16_t Sint16
A signed 16-bit integer type.
Definition: SDL_stdinc.h:143
static void SDL_Upsample_S16MSB_1c_x4 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 11452 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_SwapBE16, and SDLCALL.

11453 {
11454 #if DEBUG_CONVERT
11455  fprintf(stderr, "Upsample (x4) AUDIO_S16MSB, 1 channels.\n");
11456 #endif
11457 
11458  const int dstsize = cvt->len_cvt * 4;
11459  Sint16 *dst = ((Sint16 *) (cvt->buf + dstsize)) - 1 * 4;
11460  const Sint16 *src = ((Sint16 *) (cvt->buf + cvt->len_cvt)) - 1;
11461  const Sint16 *target = ((const Sint16 *) cvt->buf);
11462  Sint32 last_sample0 = (Sint32) ((Sint16) SDL_SwapBE16(src[0]));
11463  while (dst >= target) {
11464  const Sint32 sample0 = (Sint32) ((Sint16) SDL_SwapBE16(src[0]));
11465  src--;
11466  dst[3] = (Sint16) ((sample0 + (3 * last_sample0)) >> 2);
11467  dst[2] = (Sint16) ((sample0 + last_sample0) >> 1);
11468  dst[1] = (Sint16) (((3 * sample0) + last_sample0) >> 2);
11469  dst[0] = (Sint16) sample0;
11470  last_sample0 = sample0;
11471  dst -= 4;
11472  }
11473 
11474  cvt->len_cvt = dstsize;
11475  if (cvt->filters[++cvt->filter_index]) {
11476  cvt->filters[cvt->filter_index] (cvt, format);
11477  }
11478 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_SwapBE16
#define SDL_SwapBE16(X)
Definition: SDL_endian.h:215
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
src
GLenum src
Definition: SDL_opengl_glext.h:1737
Sint16
int16_t Sint16
A signed 16-bit integer type.
Definition: SDL_stdinc.h:143
static void SDL_Upsample_S16MSB_2c ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 4760 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_AudioCVT::rate_incr, SDL_SwapBE16, and SDLCALL.

4761 {
4762 #if DEBUG_CONVERT
4763  fprintf(stderr, "Upsample arbitrary (x%f) AUDIO_S16MSB, 2 channels.\n", cvt->rate_incr);
4764 #endif
4765 
4766  const int srcsize = cvt->len_cvt - 64;
4767  const int dstsize = (int) (((double)(cvt->len_cvt/4)) * cvt->rate_incr) * 4;
4768  register int eps = 0;
4769  Sint16 *dst = ((Sint16 *) (cvt->buf + dstsize)) - 2;
4770  const Sint16 *src = ((Sint16 *) (cvt->buf + cvt->len_cvt)) - 2;
4771  const Sint16 *target = ((const Sint16 *) cvt->buf);
4772  Sint16 sample1 = ((Sint16) SDL_SwapBE16(src[1]));
4773  Sint16 sample0 = ((Sint16) SDL_SwapBE16(src[0]));
4774  Sint16 last_sample1 = sample1;
4775  Sint16 last_sample0 = sample0;
4776  while (dst >= target) {
4777  dst[1] = ((Sint16) SDL_SwapBE16(sample1));
4778  dst[0] = ((Sint16) SDL_SwapBE16(sample0));
4779  dst -= 2;
4780  eps += srcsize;
4781  if ((eps << 1) >= dstsize) {
4782  src -= 2;
4783  sample1 = (Sint16) ((((Sint32) ((Sint16) SDL_SwapBE16(src[1]))) + ((Sint32) last_sample1)) >> 1);
4784  sample0 = (Sint16) ((((Sint32) ((Sint16) SDL_SwapBE16(src[0]))) + ((Sint32) last_sample0)) >> 1);
4785  last_sample1 = sample1;
4786  last_sample0 = sample0;
4787  eps -= dstsize;
4788  }
4789  }
4790  cvt->len_cvt = dstsize;
4791  if (cvt->filters[++cvt->filter_index]) {
4792  cvt->filters[cvt->filter_index] (cvt, format);
4793  }
4794 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_SwapBE16
#define SDL_SwapBE16(X)
Definition: SDL_endian.h:215
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
SDL_AudioCVT::rate_incr
double rate_incr
Definition: SDL_audio.h:205
src
GLenum src
Definition: SDL_opengl_glext.h:1737
Sint16
int16_t Sint16
A signed 16-bit integer type.
Definition: SDL_stdinc.h:143
static void SDL_Upsample_S16MSB_2c_x2 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 11507 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_SwapBE16, and SDLCALL.

11508 {
11509 #if DEBUG_CONVERT
11510  fprintf(stderr, "Upsample (x2) AUDIO_S16MSB, 2 channels.\n");
11511 #endif
11512 
11513  const int dstsize = cvt->len_cvt * 2;
11514  Sint16 *dst = ((Sint16 *) (cvt->buf + dstsize)) - 2 * 2;
11515  const Sint16 *src = ((Sint16 *) (cvt->buf + cvt->len_cvt)) - 2;
11516  const Sint16 *target = ((const Sint16 *) cvt->buf);
11517  Sint32 last_sample1 = (Sint32) ((Sint16) SDL_SwapBE16(src[1]));
11518  Sint32 last_sample0 = (Sint32) ((Sint16) SDL_SwapBE16(src[0]));
11519  while (dst >= target) {
11520  const Sint32 sample1 = (Sint32) ((Sint16) SDL_SwapBE16(src[1]));
11521  const Sint32 sample0 = (Sint32) ((Sint16) SDL_SwapBE16(src[0]));
11522  src -= 2;
11523  dst[3] = (Sint16) ((sample1 + last_sample1) >> 1);
11524  dst[2] = (Sint16) ((sample0 + last_sample0) >> 1);
11525  dst[1] = (Sint16) sample1;
11526  dst[0] = (Sint16) sample0;
11527  last_sample1 = sample1;
11528  last_sample0 = sample0;
11529  dst -= 4;
11530  }
11531 
11532  cvt->len_cvt = dstsize;
11533  if (cvt->filters[++cvt->filter_index]) {
11534  cvt->filters[cvt->filter_index] (cvt, format);
11535  }
11536 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_SwapBE16
#define SDL_SwapBE16(X)
Definition: SDL_endian.h:215
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
src
GLenum src
Definition: SDL_opengl_glext.h:1737
Sint16
int16_t Sint16
A signed 16-bit integer type.
Definition: SDL_stdinc.h:143
static void SDL_Upsample_S16MSB_2c_x4 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 11569 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_SwapBE16, and SDLCALL.

11570 {
11571 #if DEBUG_CONVERT
11572  fprintf(stderr, "Upsample (x4) AUDIO_S16MSB, 2 channels.\n");
11573 #endif
11574 
11575  const int dstsize = cvt->len_cvt * 4;
11576  Sint16 *dst = ((Sint16 *) (cvt->buf + dstsize)) - 2 * 4;
11577  const Sint16 *src = ((Sint16 *) (cvt->buf + cvt->len_cvt)) - 2;
11578  const Sint16 *target = ((const Sint16 *) cvt->buf);
11579  Sint32 last_sample1 = (Sint32) ((Sint16) SDL_SwapBE16(src[1]));
11580  Sint32 last_sample0 = (Sint32) ((Sint16) SDL_SwapBE16(src[0]));
11581  while (dst >= target) {
11582  const Sint32 sample1 = (Sint32) ((Sint16) SDL_SwapBE16(src[1]));
11583  const Sint32 sample0 = (Sint32) ((Sint16) SDL_SwapBE16(src[0]));
11584  src -= 2;
11585  dst[7] = (Sint16) ((sample1 + (3 * last_sample1)) >> 2);
11586  dst[6] = (Sint16) ((sample0 + (3 * last_sample0)) >> 2);
11587  dst[5] = (Sint16) ((sample1 + last_sample1) >> 1);
11588  dst[4] = (Sint16) ((sample0 + last_sample0) >> 1);
11589  dst[3] = (Sint16) (((3 * sample1) + last_sample1) >> 2);
11590  dst[2] = (Sint16) (((3 * sample0) + last_sample0) >> 2);
11591  dst[1] = (Sint16) sample1;
11592  dst[0] = (Sint16) sample0;
11593  last_sample1 = sample1;
11594  last_sample0 = sample0;
11595  dst -= 8;
11596  }
11597 
11598  cvt->len_cvt = dstsize;
11599  if (cvt->filters[++cvt->filter_index]) {
11600  cvt->filters[cvt->filter_index] (cvt, format);
11601  }
11602 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_SwapBE16
#define SDL_SwapBE16(X)
Definition: SDL_endian.h:215
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
src
GLenum src
Definition: SDL_opengl_glext.h:1737
Sint16
int16_t Sint16
A signed 16-bit integer type.
Definition: SDL_stdinc.h:143
static void SDL_Upsample_S16MSB_4c ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 4834 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_AudioCVT::rate_incr, SDL_SwapBE16, and SDLCALL.

4835 {
4836 #if DEBUG_CONVERT
4837  fprintf(stderr, "Upsample arbitrary (x%f) AUDIO_S16MSB, 4 channels.\n", cvt->rate_incr);
4838 #endif
4839 
4840  const int srcsize = cvt->len_cvt - 128;
4841  const int dstsize = (int) (((double)(cvt->len_cvt/8)) * cvt->rate_incr) * 8;
4842  register int eps = 0;
4843  Sint16 *dst = ((Sint16 *) (cvt->buf + dstsize)) - 4;
4844  const Sint16 *src = ((Sint16 *) (cvt->buf + cvt->len_cvt)) - 4;
4845  const Sint16 *target = ((const Sint16 *) cvt->buf);
4846  Sint16 sample3 = ((Sint16) SDL_SwapBE16(src[3]));
4847  Sint16 sample2 = ((Sint16) SDL_SwapBE16(src[2]));
4848  Sint16 sample1 = ((Sint16) SDL_SwapBE16(src[1]));
4849  Sint16 sample0 = ((Sint16) SDL_SwapBE16(src[0]));
4850  Sint16 last_sample3 = sample3;
4851  Sint16 last_sample2 = sample2;
4852  Sint16 last_sample1 = sample1;
4853  Sint16 last_sample0 = sample0;
4854  while (dst >= target) {
4855  dst[3] = ((Sint16) SDL_SwapBE16(sample3));
4856  dst[2] = ((Sint16) SDL_SwapBE16(sample2));
4857  dst[1] = ((Sint16) SDL_SwapBE16(sample1));
4858  dst[0] = ((Sint16) SDL_SwapBE16(sample0));
4859  dst -= 4;
4860  eps += srcsize;
4861  if ((eps << 1) >= dstsize) {
4862  src -= 4;
4863  sample3 = (Sint16) ((((Sint32) ((Sint16) SDL_SwapBE16(src[3]))) + ((Sint32) last_sample3)) >> 1);
4864  sample2 = (Sint16) ((((Sint32) ((Sint16) SDL_SwapBE16(src[2]))) + ((Sint32) last_sample2)) >> 1);
4865  sample1 = (Sint16) ((((Sint32) ((Sint16) SDL_SwapBE16(src[1]))) + ((Sint32) last_sample1)) >> 1);
4866  sample0 = (Sint16) ((((Sint32) ((Sint16) SDL_SwapBE16(src[0]))) + ((Sint32) last_sample0)) >> 1);
4867  last_sample3 = sample3;
4868  last_sample2 = sample2;
4869  last_sample1 = sample1;
4870  last_sample0 = sample0;
4871  eps -= dstsize;
4872  }
4873  }
4874  cvt->len_cvt = dstsize;
4875  if (cvt->filters[++cvt->filter_index]) {
4876  cvt->filters[cvt->filter_index] (cvt, format);
4877  }
4878 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_SwapBE16
#define SDL_SwapBE16(X)
Definition: SDL_endian.h:215
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
SDL_AudioCVT::rate_incr
double rate_incr
Definition: SDL_audio.h:205
src
GLenum src
Definition: SDL_opengl_glext.h:1737
Sint16
int16_t Sint16
A signed 16-bit integer type.
Definition: SDL_stdinc.h:143
static void SDL_Upsample_S16MSB_4c_x2 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 11635 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_SwapBE16, and SDLCALL.

11636 {
11637 #if DEBUG_CONVERT
11638  fprintf(stderr, "Upsample (x2) AUDIO_S16MSB, 4 channels.\n");
11639 #endif
11640 
11641  const int dstsize = cvt->len_cvt * 2;
11642  Sint16 *dst = ((Sint16 *) (cvt->buf + dstsize)) - 4 * 2;
11643  const Sint16 *src = ((Sint16 *) (cvt->buf + cvt->len_cvt)) - 4;
11644  const Sint16 *target = ((const Sint16 *) cvt->buf);
11645  Sint32 last_sample3 = (Sint32) ((Sint16) SDL_SwapBE16(src[3]));
11646  Sint32 last_sample2 = (Sint32) ((Sint16) SDL_SwapBE16(src[2]));
11647  Sint32 last_sample1 = (Sint32) ((Sint16) SDL_SwapBE16(src[1]));
11648  Sint32 last_sample0 = (Sint32) ((Sint16) SDL_SwapBE16(src[0]));
11649  while (dst >= target) {
11650  const Sint32 sample3 = (Sint32) ((Sint16) SDL_SwapBE16(src[3]));
11651  const Sint32 sample2 = (Sint32) ((Sint16) SDL_SwapBE16(src[2]));
11652  const Sint32 sample1 = (Sint32) ((Sint16) SDL_SwapBE16(src[1]));
11653  const Sint32 sample0 = (Sint32) ((Sint16) SDL_SwapBE16(src[0]));
11654  src -= 4;
11655  dst[7] = (Sint16) ((sample3 + last_sample3) >> 1);
11656  dst[6] = (Sint16) ((sample2 + last_sample2) >> 1);
11657  dst[5] = (Sint16) ((sample1 + last_sample1) >> 1);
11658  dst[4] = (Sint16) ((sample0 + last_sample0) >> 1);
11659  dst[3] = (Sint16) sample3;
11660  dst[2] = (Sint16) sample2;
11661  dst[1] = (Sint16) sample1;
11662  dst[0] = (Sint16) sample0;
11663  last_sample3 = sample3;
11664  last_sample2 = sample2;
11665  last_sample1 = sample1;
11666  last_sample0 = sample0;
11667  dst -= 8;
11668  }
11669 
11670  cvt->len_cvt = dstsize;
11671  if (cvt->filters[++cvt->filter_index]) {
11672  cvt->filters[cvt->filter_index] (cvt, format);
11673  }
11674 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_SwapBE16
#define SDL_SwapBE16(X)
Definition: SDL_endian.h:215
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
src
GLenum src
Definition: SDL_opengl_glext.h:1737
Sint16
int16_t Sint16
A signed 16-bit integer type.
Definition: SDL_stdinc.h:143
static void SDL_Upsample_S16MSB_4c_x4 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 11715 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_SwapBE16, and SDLCALL.

11716 {
11717 #if DEBUG_CONVERT
11718  fprintf(stderr, "Upsample (x4) AUDIO_S16MSB, 4 channels.\n");
11719 #endif
11720 
11721  const int dstsize = cvt->len_cvt * 4;
11722  Sint16 *dst = ((Sint16 *) (cvt->buf + dstsize)) - 4 * 4;
11723  const Sint16 *src = ((Sint16 *) (cvt->buf + cvt->len_cvt)) - 4;
11724  const Sint16 *target = ((const Sint16 *) cvt->buf);
11725  Sint32 last_sample3 = (Sint32) ((Sint16) SDL_SwapBE16(src[3]));
11726  Sint32 last_sample2 = (Sint32) ((Sint16) SDL_SwapBE16(src[2]));
11727  Sint32 last_sample1 = (Sint32) ((Sint16) SDL_SwapBE16(src[1]));
11728  Sint32 last_sample0 = (Sint32) ((Sint16) SDL_SwapBE16(src[0]));
11729  while (dst >= target) {
11730  const Sint32 sample3 = (Sint32) ((Sint16) SDL_SwapBE16(src[3]));
11731  const Sint32 sample2 = (Sint32) ((Sint16) SDL_SwapBE16(src[2]));
11732  const Sint32 sample1 = (Sint32) ((Sint16) SDL_SwapBE16(src[1]));
11733  const Sint32 sample0 = (Sint32) ((Sint16) SDL_SwapBE16(src[0]));
11734  src -= 4;
11735  dst[15] = (Sint16) ((sample3 + (3 * last_sample3)) >> 2);
11736  dst[14] = (Sint16) ((sample2 + (3 * last_sample2)) >> 2);
11737  dst[13] = (Sint16) ((sample1 + (3 * last_sample1)) >> 2);
11738  dst[12] = (Sint16) ((sample0 + (3 * last_sample0)) >> 2);
11739  dst[11] = (Sint16) ((sample3 + last_sample3) >> 1);
11740  dst[10] = (Sint16) ((sample2 + last_sample2) >> 1);
11741  dst[9] = (Sint16) ((sample1 + last_sample1) >> 1);
11742  dst[8] = (Sint16) ((sample0 + last_sample0) >> 1);
11743  dst[7] = (Sint16) (((3 * sample3) + last_sample3) >> 2);
11744  dst[6] = (Sint16) (((3 * sample2) + last_sample2) >> 2);
11745  dst[5] = (Sint16) (((3 * sample1) + last_sample1) >> 2);
11746  dst[4] = (Sint16) (((3 * sample0) + last_sample0) >> 2);
11747  dst[3] = (Sint16) sample3;
11748  dst[2] = (Sint16) sample2;
11749  dst[1] = (Sint16) sample1;
11750  dst[0] = (Sint16) sample0;
11751  last_sample3 = sample3;
11752  last_sample2 = sample2;
11753  last_sample1 = sample1;
11754  last_sample0 = sample0;
11755  dst -= 16;
11756  }
11757 
11758  cvt->len_cvt = dstsize;
11759  if (cvt->filters[++cvt->filter_index]) {
11760  cvt->filters[cvt->filter_index] (cvt, format);
11761  }
11762 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_SwapBE16
#define SDL_SwapBE16(X)
Definition: SDL_endian.h:215
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
src
GLenum src
Definition: SDL_opengl_glext.h:1737
Sint16
int16_t Sint16
A signed 16-bit integer type.
Definition: SDL_stdinc.h:143
static void SDL_Upsample_S16MSB_6c ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 4928 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_AudioCVT::rate_incr, SDL_SwapBE16, and SDLCALL.

4929 {
4930 #if DEBUG_CONVERT
4931  fprintf(stderr, "Upsample arbitrary (x%f) AUDIO_S16MSB, 6 channels.\n", cvt->rate_incr);
4932 #endif
4933 
4934  const int srcsize = cvt->len_cvt - 192;
4935  const int dstsize = (int) (((double)(cvt->len_cvt/12)) * cvt->rate_incr) * 12;
4936  register int eps = 0;
4937  Sint16 *dst = ((Sint16 *) (cvt->buf + dstsize)) - 6;
4938  const Sint16 *src = ((Sint16 *) (cvt->buf + cvt->len_cvt)) - 6;
4939  const Sint16 *target = ((const Sint16 *) cvt->buf);
4940  Sint16 sample5 = ((Sint16) SDL_SwapBE16(src[5]));
4941  Sint16 sample4 = ((Sint16) SDL_SwapBE16(src[4]));
4942  Sint16 sample3 = ((Sint16) SDL_SwapBE16(src[3]));
4943  Sint16 sample2 = ((Sint16) SDL_SwapBE16(src[2]));
4944  Sint16 sample1 = ((Sint16) SDL_SwapBE16(src[1]));
4945  Sint16 sample0 = ((Sint16) SDL_SwapBE16(src[0]));
4946  Sint16 last_sample5 = sample5;
4947  Sint16 last_sample4 = sample4;
4948  Sint16 last_sample3 = sample3;
4949  Sint16 last_sample2 = sample2;
4950  Sint16 last_sample1 = sample1;
4951  Sint16 last_sample0 = sample0;
4952  while (dst >= target) {
4953  dst[5] = ((Sint16) SDL_SwapBE16(sample5));
4954  dst[4] = ((Sint16) SDL_SwapBE16(sample4));
4955  dst[3] = ((Sint16) SDL_SwapBE16(sample3));
4956  dst[2] = ((Sint16) SDL_SwapBE16(sample2));
4957  dst[1] = ((Sint16) SDL_SwapBE16(sample1));
4958  dst[0] = ((Sint16) SDL_SwapBE16(sample0));
4959  dst -= 6;
4960  eps += srcsize;
4961  if ((eps << 1) >= dstsize) {
4962  src -= 6;
4963  sample5 = (Sint16) ((((Sint32) ((Sint16) SDL_SwapBE16(src[5]))) + ((Sint32) last_sample5)) >> 1);
4964  sample4 = (Sint16) ((((Sint32) ((Sint16) SDL_SwapBE16(src[4]))) + ((Sint32) last_sample4)) >> 1);
4965  sample3 = (Sint16) ((((Sint32) ((Sint16) SDL_SwapBE16(src[3]))) + ((Sint32) last_sample3)) >> 1);
4966  sample2 = (Sint16) ((((Sint32) ((Sint16) SDL_SwapBE16(src[2]))) + ((Sint32) last_sample2)) >> 1);
4967  sample1 = (Sint16) ((((Sint32) ((Sint16) SDL_SwapBE16(src[1]))) + ((Sint32) last_sample1)) >> 1);
4968  sample0 = (Sint16) ((((Sint32) ((Sint16) SDL_SwapBE16(src[0]))) + ((Sint32) last_sample0)) >> 1);
4969  last_sample5 = sample5;
4970  last_sample4 = sample4;
4971  last_sample3 = sample3;
4972  last_sample2 = sample2;
4973  last_sample1 = sample1;
4974  last_sample0 = sample0;
4975  eps -= dstsize;
4976  }
4977  }
4978  cvt->len_cvt = dstsize;
4979  if (cvt->filters[++cvt->filter_index]) {
4980  cvt->filters[cvt->filter_index] (cvt, format);
4981  }
4982 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_SwapBE16
#define SDL_SwapBE16(X)
Definition: SDL_endian.h:215
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
SDL_AudioCVT::rate_incr
double rate_incr
Definition: SDL_audio.h:205
src
GLenum src
Definition: SDL_opengl_glext.h:1737
Sint16
int16_t Sint16
A signed 16-bit integer type.
Definition: SDL_stdinc.h:143
static void SDL_Upsample_S16MSB_6c_x2 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 11803 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_SwapBE16, and SDLCALL.

11804 {
11805 #if DEBUG_CONVERT
11806  fprintf(stderr, "Upsample (x2) AUDIO_S16MSB, 6 channels.\n");
11807 #endif
11808 
11809  const int dstsize = cvt->len_cvt * 2;
11810  Sint16 *dst = ((Sint16 *) (cvt->buf + dstsize)) - 6 * 2;
11811  const Sint16 *src = ((Sint16 *) (cvt->buf + cvt->len_cvt)) - 6;
11812  const Sint16 *target = ((const Sint16 *) cvt->buf);
11813  Sint32 last_sample5 = (Sint32) ((Sint16) SDL_SwapBE16(src[5]));
11814  Sint32 last_sample4 = (Sint32) ((Sint16) SDL_SwapBE16(src[4]));
11815  Sint32 last_sample3 = (Sint32) ((Sint16) SDL_SwapBE16(src[3]));
11816  Sint32 last_sample2 = (Sint32) ((Sint16) SDL_SwapBE16(src[2]));
11817  Sint32 last_sample1 = (Sint32) ((Sint16) SDL_SwapBE16(src[1]));
11818  Sint32 last_sample0 = (Sint32) ((Sint16) SDL_SwapBE16(src[0]));
11819  while (dst >= target) {
11820  const Sint32 sample5 = (Sint32) ((Sint16) SDL_SwapBE16(src[5]));
11821  const Sint32 sample4 = (Sint32) ((Sint16) SDL_SwapBE16(src[4]));
11822  const Sint32 sample3 = (Sint32) ((Sint16) SDL_SwapBE16(src[3]));
11823  const Sint32 sample2 = (Sint32) ((Sint16) SDL_SwapBE16(src[2]));
11824  const Sint32 sample1 = (Sint32) ((Sint16) SDL_SwapBE16(src[1]));
11825  const Sint32 sample0 = (Sint32) ((Sint16) SDL_SwapBE16(src[0]));
11826  src -= 6;
11827  dst[11] = (Sint16) ((sample5 + last_sample5) >> 1);
11828  dst[10] = (Sint16) ((sample4 + last_sample4) >> 1);
11829  dst[9] = (Sint16) ((sample3 + last_sample3) >> 1);
11830  dst[8] = (Sint16) ((sample2 + last_sample2) >> 1);
11831  dst[7] = (Sint16) ((sample1 + last_sample1) >> 1);
11832  dst[6] = (Sint16) ((sample0 + last_sample0) >> 1);
11833  dst[5] = (Sint16) sample5;
11834  dst[4] = (Sint16) sample4;
11835  dst[3] = (Sint16) sample3;
11836  dst[2] = (Sint16) sample2;
11837  dst[1] = (Sint16) sample1;
11838  dst[0] = (Sint16) sample0;
11839  last_sample5 = sample5;
11840  last_sample4 = sample4;
11841  last_sample3 = sample3;
11842  last_sample2 = sample2;
11843  last_sample1 = sample1;
11844  last_sample0 = sample0;
11845  dst -= 12;
11846  }
11847 
11848  cvt->len_cvt = dstsize;
11849  if (cvt->filters[++cvt->filter_index]) {
11850  cvt->filters[cvt->filter_index] (cvt, format);
11851  }
11852 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_SwapBE16
#define SDL_SwapBE16(X)
Definition: SDL_endian.h:215
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
src
GLenum src
Definition: SDL_opengl_glext.h:1737
Sint16
int16_t Sint16
A signed 16-bit integer type.
Definition: SDL_stdinc.h:143
static void SDL_Upsample_S16MSB_6c_x4 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 11901 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_SwapBE16, and SDLCALL.

11902 {
11903 #if DEBUG_CONVERT
11904  fprintf(stderr, "Upsample (x4) AUDIO_S16MSB, 6 channels.\n");
11905 #endif
11906 
11907  const int dstsize = cvt->len_cvt * 4;
11908  Sint16 *dst = ((Sint16 *) (cvt->buf + dstsize)) - 6 * 4;
11909  const Sint16 *src = ((Sint16 *) (cvt->buf + cvt->len_cvt)) - 6;
11910  const Sint16 *target = ((const Sint16 *) cvt->buf);
11911  Sint32 last_sample5 = (Sint32) ((Sint16) SDL_SwapBE16(src[5]));
11912  Sint32 last_sample4 = (Sint32) ((Sint16) SDL_SwapBE16(src[4]));
11913  Sint32 last_sample3 = (Sint32) ((Sint16) SDL_SwapBE16(src[3]));
11914  Sint32 last_sample2 = (Sint32) ((Sint16) SDL_SwapBE16(src[2]));
11915  Sint32 last_sample1 = (Sint32) ((Sint16) SDL_SwapBE16(src[1]));
11916  Sint32 last_sample0 = (Sint32) ((Sint16) SDL_SwapBE16(src[0]));
11917  while (dst >= target) {
11918  const Sint32 sample5 = (Sint32) ((Sint16) SDL_SwapBE16(src[5]));
11919  const Sint32 sample4 = (Sint32) ((Sint16) SDL_SwapBE16(src[4]));
11920  const Sint32 sample3 = (Sint32) ((Sint16) SDL_SwapBE16(src[3]));
11921  const Sint32 sample2 = (Sint32) ((Sint16) SDL_SwapBE16(src[2]));
11922  const Sint32 sample1 = (Sint32) ((Sint16) SDL_SwapBE16(src[1]));
11923  const Sint32 sample0 = (Sint32) ((Sint16) SDL_SwapBE16(src[0]));
11924  src -= 6;
11925  dst[23] = (Sint16) ((sample5 + (3 * last_sample5)) >> 2);
11926  dst[22] = (Sint16) ((sample4 + (3 * last_sample4)) >> 2);
11927  dst[21] = (Sint16) ((sample3 + (3 * last_sample3)) >> 2);
11928  dst[20] = (Sint16) ((sample2 + (3 * last_sample2)) >> 2);
11929  dst[19] = (Sint16) ((sample1 + (3 * last_sample1)) >> 2);
11930  dst[18] = (Sint16) ((sample0 + (3 * last_sample0)) >> 2);
11931  dst[17] = (Sint16) ((sample5 + last_sample5) >> 1);
11932  dst[16] = (Sint16) ((sample4 + last_sample4) >> 1);
11933  dst[15] = (Sint16) ((sample3 + last_sample3) >> 1);
11934  dst[14] = (Sint16) ((sample2 + last_sample2) >> 1);
11935  dst[13] = (Sint16) ((sample1 + last_sample1) >> 1);
11936  dst[12] = (Sint16) ((sample0 + last_sample0) >> 1);
11937  dst[11] = (Sint16) (((3 * sample5) + last_sample5) >> 2);
11938  dst[10] = (Sint16) (((3 * sample4) + last_sample4) >> 2);
11939  dst[9] = (Sint16) (((3 * sample3) + last_sample3) >> 2);
11940  dst[8] = (Sint16) (((3 * sample2) + last_sample2) >> 2);
11941  dst[7] = (Sint16) (((3 * sample1) + last_sample1) >> 2);
11942  dst[6] = (Sint16) (((3 * sample0) + last_sample0) >> 2);
11943  dst[5] = (Sint16) sample5;
11944  dst[4] = (Sint16) sample4;
11945  dst[3] = (Sint16) sample3;
11946  dst[2] = (Sint16) sample2;
11947  dst[1] = (Sint16) sample1;
11948  dst[0] = (Sint16) sample0;
11949  last_sample5 = sample5;
11950  last_sample4 = sample4;
11951  last_sample3 = sample3;
11952  last_sample2 = sample2;
11953  last_sample1 = sample1;
11954  last_sample0 = sample0;
11955  dst -= 24;
11956  }
11957 
11958  cvt->len_cvt = dstsize;
11959  if (cvt->filters[++cvt->filter_index]) {
11960  cvt->filters[cvt->filter_index] (cvt, format);
11961  }
11962 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_SwapBE16
#define SDL_SwapBE16(X)
Definition: SDL_endian.h:215
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
src
GLenum src
Definition: SDL_opengl_glext.h:1737
Sint16
int16_t Sint16
A signed 16-bit integer type.
Definition: SDL_stdinc.h:143
static void SDL_Upsample_S16MSB_8c ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 5042 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_AudioCVT::rate_incr, SDL_SwapBE16, and SDLCALL.

5043 {
5044 #if DEBUG_CONVERT
5045  fprintf(stderr, "Upsample arbitrary (x%f) AUDIO_S16MSB, 8 channels.\n", cvt->rate_incr);
5046 #endif
5047 
5048  const int srcsize = cvt->len_cvt - 256;
5049  const int dstsize = (int) (((double)(cvt->len_cvt/16)) * cvt->rate_incr) * 16;
5050  register int eps = 0;
5051  Sint16 *dst = ((Sint16 *) (cvt->buf + dstsize)) - 8;
5052  const Sint16 *src = ((Sint16 *) (cvt->buf + cvt->len_cvt)) - 8;
5053  const Sint16 *target = ((const Sint16 *) cvt->buf);
5054  Sint16 sample7 = ((Sint16) SDL_SwapBE16(src[7]));
5055  Sint16 sample6 = ((Sint16) SDL_SwapBE16(src[6]));
5056  Sint16 sample5 = ((Sint16) SDL_SwapBE16(src[5]));
5057  Sint16 sample4 = ((Sint16) SDL_SwapBE16(src[4]));
5058  Sint16 sample3 = ((Sint16) SDL_SwapBE16(src[3]));
5059  Sint16 sample2 = ((Sint16) SDL_SwapBE16(src[2]));
5060  Sint16 sample1 = ((Sint16) SDL_SwapBE16(src[1]));
5061  Sint16 sample0 = ((Sint16) SDL_SwapBE16(src[0]));
5062  Sint16 last_sample7 = sample7;
5063  Sint16 last_sample6 = sample6;
5064  Sint16 last_sample5 = sample5;
5065  Sint16 last_sample4 = sample4;
5066  Sint16 last_sample3 = sample3;
5067  Sint16 last_sample2 = sample2;
5068  Sint16 last_sample1 = sample1;
5069  Sint16 last_sample0 = sample0;
5070  while (dst >= target) {
5071  dst[7] = ((Sint16) SDL_SwapBE16(sample7));
5072  dst[6] = ((Sint16) SDL_SwapBE16(sample6));
5073  dst[5] = ((Sint16) SDL_SwapBE16(sample5));
5074  dst[4] = ((Sint16) SDL_SwapBE16(sample4));
5075  dst[3] = ((Sint16) SDL_SwapBE16(sample3));
5076  dst[2] = ((Sint16) SDL_SwapBE16(sample2));
5077  dst[1] = ((Sint16) SDL_SwapBE16(sample1));
5078  dst[0] = ((Sint16) SDL_SwapBE16(sample0));
5079  dst -= 8;
5080  eps += srcsize;
5081  if ((eps << 1) >= dstsize) {
5082  src -= 8;
5083  sample7 = (Sint16) ((((Sint32) ((Sint16) SDL_SwapBE16(src[7]))) + ((Sint32) last_sample7)) >> 1);
5084  sample6 = (Sint16) ((((Sint32) ((Sint16) SDL_SwapBE16(src[6]))) + ((Sint32) last_sample6)) >> 1);
5085  sample5 = (Sint16) ((((Sint32) ((Sint16) SDL_SwapBE16(src[5]))) + ((Sint32) last_sample5)) >> 1);
5086  sample4 = (Sint16) ((((Sint32) ((Sint16) SDL_SwapBE16(src[4]))) + ((Sint32) last_sample4)) >> 1);
5087  sample3 = (Sint16) ((((Sint32) ((Sint16) SDL_SwapBE16(src[3]))) + ((Sint32) last_sample3)) >> 1);
5088  sample2 = (Sint16) ((((Sint32) ((Sint16) SDL_SwapBE16(src[2]))) + ((Sint32) last_sample2)) >> 1);
5089  sample1 = (Sint16) ((((Sint32) ((Sint16) SDL_SwapBE16(src[1]))) + ((Sint32) last_sample1)) >> 1);
5090  sample0 = (Sint16) ((((Sint32) ((Sint16) SDL_SwapBE16(src[0]))) + ((Sint32) last_sample0)) >> 1);
5091  last_sample7 = sample7;
5092  last_sample6 = sample6;
5093  last_sample5 = sample5;
5094  last_sample4 = sample4;
5095  last_sample3 = sample3;
5096  last_sample2 = sample2;
5097  last_sample1 = sample1;
5098  last_sample0 = sample0;
5099  eps -= dstsize;
5100  }
5101  }
5102  cvt->len_cvt = dstsize;
5103  if (cvt->filters[++cvt->filter_index]) {
5104  cvt->filters[cvt->filter_index] (cvt, format);
5105  }
5106 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_SwapBE16
#define SDL_SwapBE16(X)
Definition: SDL_endian.h:215
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
SDL_AudioCVT::rate_incr
double rate_incr
Definition: SDL_audio.h:205
src
GLenum src
Definition: SDL_opengl_glext.h:1737
Sint16
int16_t Sint16
A signed 16-bit integer type.
Definition: SDL_stdinc.h:143
static void SDL_Upsample_S16MSB_8c_x2 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 12011 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_SwapBE16, and SDLCALL.

12012 {
12013 #if DEBUG_CONVERT
12014  fprintf(stderr, "Upsample (x2) AUDIO_S16MSB, 8 channels.\n");
12015 #endif
12016 
12017  const int dstsize = cvt->len_cvt * 2;
12018  Sint16 *dst = ((Sint16 *) (cvt->buf + dstsize)) - 8 * 2;
12019  const Sint16 *src = ((Sint16 *) (cvt->buf + cvt->len_cvt)) - 8;
12020  const Sint16 *target = ((const Sint16 *) cvt->buf);
12021  Sint32 last_sample7 = (Sint32) ((Sint16) SDL_SwapBE16(src[7]));
12022  Sint32 last_sample6 = (Sint32) ((Sint16) SDL_SwapBE16(src[6]));
12023  Sint32 last_sample5 = (Sint32) ((Sint16) SDL_SwapBE16(src[5]));
12024  Sint32 last_sample4 = (Sint32) ((Sint16) SDL_SwapBE16(src[4]));
12025  Sint32 last_sample3 = (Sint32) ((Sint16) SDL_SwapBE16(src[3]));
12026  Sint32 last_sample2 = (Sint32) ((Sint16) SDL_SwapBE16(src[2]));
12027  Sint32 last_sample1 = (Sint32) ((Sint16) SDL_SwapBE16(src[1]));
12028  Sint32 last_sample0 = (Sint32) ((Sint16) SDL_SwapBE16(src[0]));
12029  while (dst >= target) {
12030  const Sint32 sample7 = (Sint32) ((Sint16) SDL_SwapBE16(src[7]));
12031  const Sint32 sample6 = (Sint32) ((Sint16) SDL_SwapBE16(src[6]));
12032  const Sint32 sample5 = (Sint32) ((Sint16) SDL_SwapBE16(src[5]));
12033  const Sint32 sample4 = (Sint32) ((Sint16) SDL_SwapBE16(src[4]));
12034  const Sint32 sample3 = (Sint32) ((Sint16) SDL_SwapBE16(src[3]));
12035  const Sint32 sample2 = (Sint32) ((Sint16) SDL_SwapBE16(src[2]));
12036  const Sint32 sample1 = (Sint32) ((Sint16) SDL_SwapBE16(src[1]));
12037  const Sint32 sample0 = (Sint32) ((Sint16) SDL_SwapBE16(src[0]));
12038  src -= 8;
12039  dst[15] = (Sint16) ((sample7 + last_sample7) >> 1);
12040  dst[14] = (Sint16) ((sample6 + last_sample6) >> 1);
12041  dst[13] = (Sint16) ((sample5 + last_sample5) >> 1);
12042  dst[12] = (Sint16) ((sample4 + last_sample4) >> 1);
12043  dst[11] = (Sint16) ((sample3 + last_sample3) >> 1);
12044  dst[10] = (Sint16) ((sample2 + last_sample2) >> 1);
12045  dst[9] = (Sint16) ((sample1 + last_sample1) >> 1);
12046  dst[8] = (Sint16) ((sample0 + last_sample0) >> 1);
12047  dst[7] = (Sint16) sample7;
12048  dst[6] = (Sint16) sample6;
12049  dst[5] = (Sint16) sample5;
12050  dst[4] = (Sint16) sample4;
12051  dst[3] = (Sint16) sample3;
12052  dst[2] = (Sint16) sample2;
12053  dst[1] = (Sint16) sample1;
12054  dst[0] = (Sint16) sample0;
12055  last_sample7 = sample7;
12056  last_sample6 = sample6;
12057  last_sample5 = sample5;
12058  last_sample4 = sample4;
12059  last_sample3 = sample3;
12060  last_sample2 = sample2;
12061  last_sample1 = sample1;
12062  last_sample0 = sample0;
12063  dst -= 16;
12064  }
12065 
12066  cvt->len_cvt = dstsize;
12067  if (cvt->filters[++cvt->filter_index]) {
12068  cvt->filters[cvt->filter_index] (cvt, format);
12069  }
12070 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_SwapBE16
#define SDL_SwapBE16(X)
Definition: SDL_endian.h:215
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
src
GLenum src
Definition: SDL_opengl_glext.h:1737
Sint16
int16_t Sint16
A signed 16-bit integer type.
Definition: SDL_stdinc.h:143
static void SDL_Upsample_S16MSB_8c_x4 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 12127 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_SwapBE16, and SDLCALL.

12128 {
12129 #if DEBUG_CONVERT
12130  fprintf(stderr, "Upsample (x4) AUDIO_S16MSB, 8 channels.\n");
12131 #endif
12132 
12133  const int dstsize = cvt->len_cvt * 4;
12134  Sint16 *dst = ((Sint16 *) (cvt->buf + dstsize)) - 8 * 4;
12135  const Sint16 *src = ((Sint16 *) (cvt->buf + cvt->len_cvt)) - 8;
12136  const Sint16 *target = ((const Sint16 *) cvt->buf);
12137  Sint32 last_sample7 = (Sint32) ((Sint16) SDL_SwapBE16(src[7]));
12138  Sint32 last_sample6 = (Sint32) ((Sint16) SDL_SwapBE16(src[6]));
12139  Sint32 last_sample5 = (Sint32) ((Sint16) SDL_SwapBE16(src[5]));
12140  Sint32 last_sample4 = (Sint32) ((Sint16) SDL_SwapBE16(src[4]));
12141  Sint32 last_sample3 = (Sint32) ((Sint16) SDL_SwapBE16(src[3]));
12142  Sint32 last_sample2 = (Sint32) ((Sint16) SDL_SwapBE16(src[2]));
12143  Sint32 last_sample1 = (Sint32) ((Sint16) SDL_SwapBE16(src[1]));
12144  Sint32 last_sample0 = (Sint32) ((Sint16) SDL_SwapBE16(src[0]));
12145  while (dst >= target) {
12146  const Sint32 sample7 = (Sint32) ((Sint16) SDL_SwapBE16(src[7]));
12147  const Sint32 sample6 = (Sint32) ((Sint16) SDL_SwapBE16(src[6]));
12148  const Sint32 sample5 = (Sint32) ((Sint16) SDL_SwapBE16(src[5]));
12149  const Sint32 sample4 = (Sint32) ((Sint16) SDL_SwapBE16(src[4]));
12150  const Sint32 sample3 = (Sint32) ((Sint16) SDL_SwapBE16(src[3]));
12151  const Sint32 sample2 = (Sint32) ((Sint16) SDL_SwapBE16(src[2]));
12152  const Sint32 sample1 = (Sint32) ((Sint16) SDL_SwapBE16(src[1]));
12153  const Sint32 sample0 = (Sint32) ((Sint16) SDL_SwapBE16(src[0]));
12154  src -= 8;
12155  dst[31] = (Sint16) ((sample7 + (3 * last_sample7)) >> 2);
12156  dst[30] = (Sint16) ((sample6 + (3 * last_sample6)) >> 2);
12157  dst[29] = (Sint16) ((sample5 + (3 * last_sample5)) >> 2);
12158  dst[28] = (Sint16) ((sample4 + (3 * last_sample4)) >> 2);
12159  dst[27] = (Sint16) ((sample3 + (3 * last_sample3)) >> 2);
12160  dst[26] = (Sint16) ((sample2 + (3 * last_sample2)) >> 2);
12161  dst[25] = (Sint16) ((sample1 + (3 * last_sample1)) >> 2);
12162  dst[24] = (Sint16) ((sample0 + (3 * last_sample0)) >> 2);
12163  dst[23] = (Sint16) ((sample7 + last_sample7) >> 1);
12164  dst[22] = (Sint16) ((sample6 + last_sample6) >> 1);
12165  dst[21] = (Sint16) ((sample5 + last_sample5) >> 1);
12166  dst[20] = (Sint16) ((sample4 + last_sample4) >> 1);
12167  dst[19] = (Sint16) ((sample3 + last_sample3) >> 1);
12168  dst[18] = (Sint16) ((sample2 + last_sample2) >> 1);
12169  dst[17] = (Sint16) ((sample1 + last_sample1) >> 1);
12170  dst[16] = (Sint16) ((sample0 + last_sample0) >> 1);
12171  dst[15] = (Sint16) (((3 * sample7) + last_sample7) >> 2);
12172  dst[14] = (Sint16) (((3 * sample6) + last_sample6) >> 2);
12173  dst[13] = (Sint16) (((3 * sample5) + last_sample5) >> 2);
12174  dst[12] = (Sint16) (((3 * sample4) + last_sample4) >> 2);
12175  dst[11] = (Sint16) (((3 * sample3) + last_sample3) >> 2);
12176  dst[10] = (Sint16) (((3 * sample2) + last_sample2) >> 2);
12177  dst[9] = (Sint16) (((3 * sample1) + last_sample1) >> 2);
12178  dst[8] = (Sint16) (((3 * sample0) + last_sample0) >> 2);
12179  dst[7] = (Sint16) sample7;
12180  dst[6] = (Sint16) sample6;
12181  dst[5] = (Sint16) sample5;
12182  dst[4] = (Sint16) sample4;
12183  dst[3] = (Sint16) sample3;
12184  dst[2] = (Sint16) sample2;
12185  dst[1] = (Sint16) sample1;
12186  dst[0] = (Sint16) sample0;
12187  last_sample7 = sample7;
12188  last_sample6 = sample6;
12189  last_sample5 = sample5;
12190  last_sample4 = sample4;
12191  last_sample3 = sample3;
12192  last_sample2 = sample2;
12193  last_sample1 = sample1;
12194  last_sample0 = sample0;
12195  dst -= 32;
12196  }
12197 
12198  cvt->len_cvt = dstsize;
12199  if (cvt->filters[++cvt->filter_index]) {
12200  cvt->filters[cvt->filter_index] (cvt, format);
12201  }
12202 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_SwapBE16
#define SDL_SwapBE16(X)
Definition: SDL_endian.h:215
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
src
GLenum src
Definition: SDL_opengl_glext.h:1737
Sint16
int16_t Sint16
A signed 16-bit integer type.
Definition: SDL_stdinc.h:143
static void SDL_Upsample_S32LSB_1c ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 5176 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_AudioCVT::rate_incr, SDL_SwapLE32, and SDLCALL.

5177 {
5178 #if DEBUG_CONVERT
5179  fprintf(stderr, "Upsample arbitrary (x%f) AUDIO_S32LSB, 1 channels.\n", cvt->rate_incr);
5180 #endif
5181 
5182  const int srcsize = cvt->len_cvt - 64;
5183  const int dstsize = (int) (((double)(cvt->len_cvt/4)) * cvt->rate_incr) * 4;
5184  register int eps = 0;
5185  Sint32 *dst = ((Sint32 *) (cvt->buf + dstsize)) - 1;
5186  const Sint32 *src = ((Sint32 *) (cvt->buf + cvt->len_cvt)) - 1;
5187  const Sint32 *target = ((const Sint32 *) cvt->buf);
5188  Sint32 sample0 = ((Sint32) SDL_SwapLE32(src[0]));
5189  Sint32 last_sample0 = sample0;
5190  while (dst >= target) {
5191  dst[0] = ((Sint32) SDL_SwapLE32(sample0));
5192  dst--;
5193  eps += srcsize;
5194  if ((eps << 1) >= dstsize) {
5195  src--;
5196  sample0 = (Sint32) ((((Sint64) ((Sint32) SDL_SwapLE32(src[0]))) + ((Sint64) last_sample0)) >> 1);
5197  last_sample0 = sample0;
5198  eps -= dstsize;
5199  }
5200  }
5201  cvt->len_cvt = dstsize;
5202  if (cvt->filters[++cvt->filter_index]) {
5203  cvt->filters[cvt->filter_index] (cvt, format);
5204  }
5205 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
SDL_SwapLE32
#define SDL_SwapLE32(X)
Definition: SDL_endian.h:212
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
SDL_AudioCVT::rate_incr
double rate_incr
Definition: SDL_audio.h:205
Sint64
int64_t Sint64
A signed 64-bit integer type.
Definition: SDL_stdinc.h:160
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Upsample_S32LSB_1c_x2 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 12259 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_SwapLE32, and SDLCALL.

12260 {
12261 #if DEBUG_CONVERT
12262  fprintf(stderr, "Upsample (x2) AUDIO_S32LSB, 1 channels.\n");
12263 #endif
12264 
12265  const int dstsize = cvt->len_cvt * 2;
12266  Sint32 *dst = ((Sint32 *) (cvt->buf + dstsize)) - 1 * 2;
12267  const Sint32 *src = ((Sint32 *) (cvt->buf + cvt->len_cvt)) - 1;
12268  const Sint32 *target = ((const Sint32 *) cvt->buf);
12269  Sint64 last_sample0 = (Sint64) ((Sint32) SDL_SwapLE32(src[0]));
12270  while (dst >= target) {
12271  const Sint64 sample0 = (Sint64) ((Sint32) SDL_SwapLE32(src[0]));
12272  src--;
12273  dst[1] = (Sint32) ((sample0 + last_sample0) >> 1);
12274  dst[0] = (Sint32) sample0;
12275  last_sample0 = sample0;
12276  dst -= 2;
12277  }
12278 
12279  cvt->len_cvt = dstsize;
12280  if (cvt->filters[++cvt->filter_index]) {
12281  cvt->filters[cvt->filter_index] (cvt, format);
12282  }
12283 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
SDL_SwapLE32
#define SDL_SwapLE32(X)
Definition: SDL_endian.h:212
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
Sint64
int64_t Sint64
A signed 64-bit integer type.
Definition: SDL_stdinc.h:160
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Upsample_S32LSB_1c_x4 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 12312 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_SwapLE32, and SDLCALL.

12313 {
12314 #if DEBUG_CONVERT
12315  fprintf(stderr, "Upsample (x4) AUDIO_S32LSB, 1 channels.\n");
12316 #endif
12317 
12318  const int dstsize = cvt->len_cvt * 4;
12319  Sint32 *dst = ((Sint32 *) (cvt->buf + dstsize)) - 1 * 4;
12320  const Sint32 *src = ((Sint32 *) (cvt->buf + cvt->len_cvt)) - 1;
12321  const Sint32 *target = ((const Sint32 *) cvt->buf);
12322  Sint64 last_sample0 = (Sint64) ((Sint32) SDL_SwapLE32(src[0]));
12323  while (dst >= target) {
12324  const Sint64 sample0 = (Sint64) ((Sint32) SDL_SwapLE32(src[0]));
12325  src--;
12326  dst[3] = (Sint32) ((sample0 + (3 * last_sample0)) >> 2);
12327  dst[2] = (Sint32) ((sample0 + last_sample0) >> 1);
12328  dst[1] = (Sint32) (((3 * sample0) + last_sample0) >> 2);
12329  dst[0] = (Sint32) sample0;
12330  last_sample0 = sample0;
12331  dst -= 4;
12332  }
12333 
12334  cvt->len_cvt = dstsize;
12335  if (cvt->filters[++cvt->filter_index]) {
12336  cvt->filters[cvt->filter_index] (cvt, format);
12337  }
12338 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
SDL_SwapLE32
#define SDL_SwapLE32(X)
Definition: SDL_endian.h:212
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
Sint64
int64_t Sint64
A signed 64-bit integer type.
Definition: SDL_stdinc.h:160
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Upsample_S32LSB_2c ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 5240 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_AudioCVT::rate_incr, SDL_SwapLE32, and SDLCALL.

5241 {
5242 #if DEBUG_CONVERT
5243  fprintf(stderr, "Upsample arbitrary (x%f) AUDIO_S32LSB, 2 channels.\n", cvt->rate_incr);
5244 #endif
5245 
5246  const int srcsize = cvt->len_cvt - 128;
5247  const int dstsize = (int) (((double)(cvt->len_cvt/8)) * cvt->rate_incr) * 8;
5248  register int eps = 0;
5249  Sint32 *dst = ((Sint32 *) (cvt->buf + dstsize)) - 2;
5250  const Sint32 *src = ((Sint32 *) (cvt->buf + cvt->len_cvt)) - 2;
5251  const Sint32 *target = ((const Sint32 *) cvt->buf);
5252  Sint32 sample1 = ((Sint32) SDL_SwapLE32(src[1]));
5253  Sint32 sample0 = ((Sint32) SDL_SwapLE32(src[0]));
5254  Sint32 last_sample1 = sample1;
5255  Sint32 last_sample0 = sample0;
5256  while (dst >= target) {
5257  dst[1] = ((Sint32) SDL_SwapLE32(sample1));
5258  dst[0] = ((Sint32) SDL_SwapLE32(sample0));
5259  dst -= 2;
5260  eps += srcsize;
5261  if ((eps << 1) >= dstsize) {
5262  src -= 2;
5263  sample1 = (Sint32) ((((Sint64) ((Sint32) SDL_SwapLE32(src[1]))) + ((Sint64) last_sample1)) >> 1);
5264  sample0 = (Sint32) ((((Sint64) ((Sint32) SDL_SwapLE32(src[0]))) + ((Sint64) last_sample0)) >> 1);
5265  last_sample1 = sample1;
5266  last_sample0 = sample0;
5267  eps -= dstsize;
5268  }
5269  }
5270  cvt->len_cvt = dstsize;
5271  if (cvt->filters[++cvt->filter_index]) {
5272  cvt->filters[cvt->filter_index] (cvt, format);
5273  }
5274 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
SDL_SwapLE32
#define SDL_SwapLE32(X)
Definition: SDL_endian.h:212
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
SDL_AudioCVT::rate_incr
double rate_incr
Definition: SDL_audio.h:205
Sint64
int64_t Sint64
A signed 64-bit integer type.
Definition: SDL_stdinc.h:160
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Upsample_S32LSB_2c_x2 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 12367 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_SwapLE32, and SDLCALL.

12368 {
12369 #if DEBUG_CONVERT
12370  fprintf(stderr, "Upsample (x2) AUDIO_S32LSB, 2 channels.\n");
12371 #endif
12372 
12373  const int dstsize = cvt->len_cvt * 2;
12374  Sint32 *dst = ((Sint32 *) (cvt->buf + dstsize)) - 2 * 2;
12375  const Sint32 *src = ((Sint32 *) (cvt->buf + cvt->len_cvt)) - 2;
12376  const Sint32 *target = ((const Sint32 *) cvt->buf);
12377  Sint64 last_sample1 = (Sint64) ((Sint32) SDL_SwapLE32(src[1]));
12378  Sint64 last_sample0 = (Sint64) ((Sint32) SDL_SwapLE32(src[0]));
12379  while (dst >= target) {
12380  const Sint64 sample1 = (Sint64) ((Sint32) SDL_SwapLE32(src[1]));
12381  const Sint64 sample0 = (Sint64) ((Sint32) SDL_SwapLE32(src[0]));
12382  src -= 2;
12383  dst[3] = (Sint32) ((sample1 + last_sample1) >> 1);
12384  dst[2] = (Sint32) ((sample0 + last_sample0) >> 1);
12385  dst[1] = (Sint32) sample1;
12386  dst[0] = (Sint32) sample0;
12387  last_sample1 = sample1;
12388  last_sample0 = sample0;
12389  dst -= 4;
12390  }
12391 
12392  cvt->len_cvt = dstsize;
12393  if (cvt->filters[++cvt->filter_index]) {
12394  cvt->filters[cvt->filter_index] (cvt, format);
12395  }
12396 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
SDL_SwapLE32
#define SDL_SwapLE32(X)
Definition: SDL_endian.h:212
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
Sint64
int64_t Sint64
A signed 64-bit integer type.
Definition: SDL_stdinc.h:160
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Upsample_S32LSB_2c_x4 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 12429 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_SwapLE32, and SDLCALL.

12430 {
12431 #if DEBUG_CONVERT
12432  fprintf(stderr, "Upsample (x4) AUDIO_S32LSB, 2 channels.\n");
12433 #endif
12434 
12435  const int dstsize = cvt->len_cvt * 4;
12436  Sint32 *dst = ((Sint32 *) (cvt->buf + dstsize)) - 2 * 4;
12437  const Sint32 *src = ((Sint32 *) (cvt->buf + cvt->len_cvt)) - 2;
12438  const Sint32 *target = ((const Sint32 *) cvt->buf);
12439  Sint64 last_sample1 = (Sint64) ((Sint32) SDL_SwapLE32(src[1]));
12440  Sint64 last_sample0 = (Sint64) ((Sint32) SDL_SwapLE32(src[0]));
12441  while (dst >= target) {
12442  const Sint64 sample1 = (Sint64) ((Sint32) SDL_SwapLE32(src[1]));
12443  const Sint64 sample0 = (Sint64) ((Sint32) SDL_SwapLE32(src[0]));
12444  src -= 2;
12445  dst[7] = (Sint32) ((sample1 + (3 * last_sample1)) >> 2);
12446  dst[6] = (Sint32) ((sample0 + (3 * last_sample0)) >> 2);
12447  dst[5] = (Sint32) ((sample1 + last_sample1) >> 1);
12448  dst[4] = (Sint32) ((sample0 + last_sample0) >> 1);
12449  dst[3] = (Sint32) (((3 * sample1) + last_sample1) >> 2);
12450  dst[2] = (Sint32) (((3 * sample0) + last_sample0) >> 2);
12451  dst[1] = (Sint32) sample1;
12452  dst[0] = (Sint32) sample0;
12453  last_sample1 = sample1;
12454  last_sample0 = sample0;
12455  dst -= 8;
12456  }
12457 
12458  cvt->len_cvt = dstsize;
12459  if (cvt->filters[++cvt->filter_index]) {
12460  cvt->filters[cvt->filter_index] (cvt, format);
12461  }
12462 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
SDL_SwapLE32
#define SDL_SwapLE32(X)
Definition: SDL_endian.h:212
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
Sint64
int64_t Sint64
A signed 64-bit integer type.
Definition: SDL_stdinc.h:160
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Upsample_S32LSB_4c ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 5314 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_AudioCVT::rate_incr, SDL_SwapLE32, and SDLCALL.

5315 {
5316 #if DEBUG_CONVERT
5317  fprintf(stderr, "Upsample arbitrary (x%f) AUDIO_S32LSB, 4 channels.\n", cvt->rate_incr);
5318 #endif
5319 
5320  const int srcsize = cvt->len_cvt - 256;
5321  const int dstsize = (int) (((double)(cvt->len_cvt/16)) * cvt->rate_incr) * 16;
5322  register int eps = 0;
5323  Sint32 *dst = ((Sint32 *) (cvt->buf + dstsize)) - 4;
5324  const Sint32 *src = ((Sint32 *) (cvt->buf + cvt->len_cvt)) - 4;
5325  const Sint32 *target = ((const Sint32 *) cvt->buf);
5326  Sint32 sample3 = ((Sint32) SDL_SwapLE32(src[3]));
5327  Sint32 sample2 = ((Sint32) SDL_SwapLE32(src[2]));
5328  Sint32 sample1 = ((Sint32) SDL_SwapLE32(src[1]));
5329  Sint32 sample0 = ((Sint32) SDL_SwapLE32(src[0]));
5330  Sint32 last_sample3 = sample3;
5331  Sint32 last_sample2 = sample2;
5332  Sint32 last_sample1 = sample1;
5333  Sint32 last_sample0 = sample0;
5334  while (dst >= target) {
5335  dst[3] = ((Sint32) SDL_SwapLE32(sample3));
5336  dst[2] = ((Sint32) SDL_SwapLE32(sample2));
5337  dst[1] = ((Sint32) SDL_SwapLE32(sample1));
5338  dst[0] = ((Sint32) SDL_SwapLE32(sample0));
5339  dst -= 4;
5340  eps += srcsize;
5341  if ((eps << 1) >= dstsize) {
5342  src -= 4;
5343  sample3 = (Sint32) ((((Sint64) ((Sint32) SDL_SwapLE32(src[3]))) + ((Sint64) last_sample3)) >> 1);
5344  sample2 = (Sint32) ((((Sint64) ((Sint32) SDL_SwapLE32(src[2]))) + ((Sint64) last_sample2)) >> 1);
5345  sample1 = (Sint32) ((((Sint64) ((Sint32) SDL_SwapLE32(src[1]))) + ((Sint64) last_sample1)) >> 1);
5346  sample0 = (Sint32) ((((Sint64) ((Sint32) SDL_SwapLE32(src[0]))) + ((Sint64) last_sample0)) >> 1);
5347  last_sample3 = sample3;
5348  last_sample2 = sample2;
5349  last_sample1 = sample1;
5350  last_sample0 = sample0;
5351  eps -= dstsize;
5352  }
5353  }
5354  cvt->len_cvt = dstsize;
5355  if (cvt->filters[++cvt->filter_index]) {
5356  cvt->filters[cvt->filter_index] (cvt, format);
5357  }
5358 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
SDL_SwapLE32
#define SDL_SwapLE32(X)
Definition: SDL_endian.h:212
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
SDL_AudioCVT::rate_incr
double rate_incr
Definition: SDL_audio.h:205
Sint64
int64_t Sint64
A signed 64-bit integer type.
Definition: SDL_stdinc.h:160
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Upsample_S32LSB_4c_x2 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 12495 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_SwapLE32, and SDLCALL.

12496 {
12497 #if DEBUG_CONVERT
12498  fprintf(stderr, "Upsample (x2) AUDIO_S32LSB, 4 channels.\n");
12499 #endif
12500 
12501  const int dstsize = cvt->len_cvt * 2;
12502  Sint32 *dst = ((Sint32 *) (cvt->buf + dstsize)) - 4 * 2;
12503  const Sint32 *src = ((Sint32 *) (cvt->buf + cvt->len_cvt)) - 4;
12504  const Sint32 *target = ((const Sint32 *) cvt->buf);
12505  Sint64 last_sample3 = (Sint64) ((Sint32) SDL_SwapLE32(src[3]));
12506  Sint64 last_sample2 = (Sint64) ((Sint32) SDL_SwapLE32(src[2]));
12507  Sint64 last_sample1 = (Sint64) ((Sint32) SDL_SwapLE32(src[1]));
12508  Sint64 last_sample0 = (Sint64) ((Sint32) SDL_SwapLE32(src[0]));
12509  while (dst >= target) {
12510  const Sint64 sample3 = (Sint64) ((Sint32) SDL_SwapLE32(src[3]));
12511  const Sint64 sample2 = (Sint64) ((Sint32) SDL_SwapLE32(src[2]));
12512  const Sint64 sample1 = (Sint64) ((Sint32) SDL_SwapLE32(src[1]));
12513  const Sint64 sample0 = (Sint64) ((Sint32) SDL_SwapLE32(src[0]));
12514  src -= 4;
12515  dst[7] = (Sint32) ((sample3 + last_sample3) >> 1);
12516  dst[6] = (Sint32) ((sample2 + last_sample2) >> 1);
12517  dst[5] = (Sint32) ((sample1 + last_sample1) >> 1);
12518  dst[4] = (Sint32) ((sample0 + last_sample0) >> 1);
12519  dst[3] = (Sint32) sample3;
12520  dst[2] = (Sint32) sample2;
12521  dst[1] = (Sint32) sample1;
12522  dst[0] = (Sint32) sample0;
12523  last_sample3 = sample3;
12524  last_sample2 = sample2;
12525  last_sample1 = sample1;
12526  last_sample0 = sample0;
12527  dst -= 8;
12528  }
12529 
12530  cvt->len_cvt = dstsize;
12531  if (cvt->filters[++cvt->filter_index]) {
12532  cvt->filters[cvt->filter_index] (cvt, format);
12533  }
12534 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
SDL_SwapLE32
#define SDL_SwapLE32(X)
Definition: SDL_endian.h:212
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
Sint64
int64_t Sint64
A signed 64-bit integer type.
Definition: SDL_stdinc.h:160
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Upsample_S32LSB_4c_x4 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 12575 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_SwapLE32, and SDLCALL.

12576 {
12577 #if DEBUG_CONVERT
12578  fprintf(stderr, "Upsample (x4) AUDIO_S32LSB, 4 channels.\n");
12579 #endif
12580 
12581  const int dstsize = cvt->len_cvt * 4;
12582  Sint32 *dst = ((Sint32 *) (cvt->buf + dstsize)) - 4 * 4;
12583  const Sint32 *src = ((Sint32 *) (cvt->buf + cvt->len_cvt)) - 4;
12584  const Sint32 *target = ((const Sint32 *) cvt->buf);
12585  Sint64 last_sample3 = (Sint64) ((Sint32) SDL_SwapLE32(src[3]));
12586  Sint64 last_sample2 = (Sint64) ((Sint32) SDL_SwapLE32(src[2]));
12587  Sint64 last_sample1 = (Sint64) ((Sint32) SDL_SwapLE32(src[1]));
12588  Sint64 last_sample0 = (Sint64) ((Sint32) SDL_SwapLE32(src[0]));
12589  while (dst >= target) {
12590  const Sint64 sample3 = (Sint64) ((Sint32) SDL_SwapLE32(src[3]));
12591  const Sint64 sample2 = (Sint64) ((Sint32) SDL_SwapLE32(src[2]));
12592  const Sint64 sample1 = (Sint64) ((Sint32) SDL_SwapLE32(src[1]));
12593  const Sint64 sample0 = (Sint64) ((Sint32) SDL_SwapLE32(src[0]));
12594  src -= 4;
12595  dst[15] = (Sint32) ((sample3 + (3 * last_sample3)) >> 2);
12596  dst[14] = (Sint32) ((sample2 + (3 * last_sample2)) >> 2);
12597  dst[13] = (Sint32) ((sample1 + (3 * last_sample1)) >> 2);
12598  dst[12] = (Sint32) ((sample0 + (3 * last_sample0)) >> 2);
12599  dst[11] = (Sint32) ((sample3 + last_sample3) >> 1);
12600  dst[10] = (Sint32) ((sample2 + last_sample2) >> 1);
12601  dst[9] = (Sint32) ((sample1 + last_sample1) >> 1);
12602  dst[8] = (Sint32) ((sample0 + last_sample0) >> 1);
12603  dst[7] = (Sint32) (((3 * sample3) + last_sample3) >> 2);
12604  dst[6] = (Sint32) (((3 * sample2) + last_sample2) >> 2);
12605  dst[5] = (Sint32) (((3 * sample1) + last_sample1) >> 2);
12606  dst[4] = (Sint32) (((3 * sample0) + last_sample0) >> 2);
12607  dst[3] = (Sint32) sample3;
12608  dst[2] = (Sint32) sample2;
12609  dst[1] = (Sint32) sample1;
12610  dst[0] = (Sint32) sample0;
12611  last_sample3 = sample3;
12612  last_sample2 = sample2;
12613  last_sample1 = sample1;
12614  last_sample0 = sample0;
12615  dst -= 16;
12616  }
12617 
12618  cvt->len_cvt = dstsize;
12619  if (cvt->filters[++cvt->filter_index]) {
12620  cvt->filters[cvt->filter_index] (cvt, format);
12621  }
12622 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
SDL_SwapLE32
#define SDL_SwapLE32(X)
Definition: SDL_endian.h:212
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
Sint64
int64_t Sint64
A signed 64-bit integer type.
Definition: SDL_stdinc.h:160
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Upsample_S32LSB_6c ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 5408 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_AudioCVT::rate_incr, SDL_SwapLE32, and SDLCALL.

5409 {
5410 #if DEBUG_CONVERT
5411  fprintf(stderr, "Upsample arbitrary (x%f) AUDIO_S32LSB, 6 channels.\n", cvt->rate_incr);
5412 #endif
5413 
5414  const int srcsize = cvt->len_cvt - 384;
5415  const int dstsize = (int) (((double)(cvt->len_cvt/24)) * cvt->rate_incr) * 24;
5416  register int eps = 0;
5417  Sint32 *dst = ((Sint32 *) (cvt->buf + dstsize)) - 6;
5418  const Sint32 *src = ((Sint32 *) (cvt->buf + cvt->len_cvt)) - 6;
5419  const Sint32 *target = ((const Sint32 *) cvt->buf);
5420  Sint32 sample5 = ((Sint32) SDL_SwapLE32(src[5]));
5421  Sint32 sample4 = ((Sint32) SDL_SwapLE32(src[4]));
5422  Sint32 sample3 = ((Sint32) SDL_SwapLE32(src[3]));
5423  Sint32 sample2 = ((Sint32) SDL_SwapLE32(src[2]));
5424  Sint32 sample1 = ((Sint32) SDL_SwapLE32(src[1]));
5425  Sint32 sample0 = ((Sint32) SDL_SwapLE32(src[0]));
5426  Sint32 last_sample5 = sample5;
5427  Sint32 last_sample4 = sample4;
5428  Sint32 last_sample3 = sample3;
5429  Sint32 last_sample2 = sample2;
5430  Sint32 last_sample1 = sample1;
5431  Sint32 last_sample0 = sample0;
5432  while (dst >= target) {
5433  dst[5] = ((Sint32) SDL_SwapLE32(sample5));
5434  dst[4] = ((Sint32) SDL_SwapLE32(sample4));
5435  dst[3] = ((Sint32) SDL_SwapLE32(sample3));
5436  dst[2] = ((Sint32) SDL_SwapLE32(sample2));
5437  dst[1] = ((Sint32) SDL_SwapLE32(sample1));
5438  dst[0] = ((Sint32) SDL_SwapLE32(sample0));
5439  dst -= 6;
5440  eps += srcsize;
5441  if ((eps << 1) >= dstsize) {
5442  src -= 6;
5443  sample5 = (Sint32) ((((Sint64) ((Sint32) SDL_SwapLE32(src[5]))) + ((Sint64) last_sample5)) >> 1);
5444  sample4 = (Sint32) ((((Sint64) ((Sint32) SDL_SwapLE32(src[4]))) + ((Sint64) last_sample4)) >> 1);
5445  sample3 = (Sint32) ((((Sint64) ((Sint32) SDL_SwapLE32(src[3]))) + ((Sint64) last_sample3)) >> 1);
5446  sample2 = (Sint32) ((((Sint64) ((Sint32) SDL_SwapLE32(src[2]))) + ((Sint64) last_sample2)) >> 1);
5447  sample1 = (Sint32) ((((Sint64) ((Sint32) SDL_SwapLE32(src[1]))) + ((Sint64) last_sample1)) >> 1);
5448  sample0 = (Sint32) ((((Sint64) ((Sint32) SDL_SwapLE32(src[0]))) + ((Sint64) last_sample0)) >> 1);
5449  last_sample5 = sample5;
5450  last_sample4 = sample4;
5451  last_sample3 = sample3;
5452  last_sample2 = sample2;
5453  last_sample1 = sample1;
5454  last_sample0 = sample0;
5455  eps -= dstsize;
5456  }
5457  }
5458  cvt->len_cvt = dstsize;
5459  if (cvt->filters[++cvt->filter_index]) {
5460  cvt->filters[cvt->filter_index] (cvt, format);
5461  }
5462 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
SDL_SwapLE32
#define SDL_SwapLE32(X)
Definition: SDL_endian.h:212
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
SDL_AudioCVT::rate_incr
double rate_incr
Definition: SDL_audio.h:205
Sint64
int64_t Sint64
A signed 64-bit integer type.
Definition: SDL_stdinc.h:160
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Upsample_S32LSB_6c_x2 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 12663 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_SwapLE32, and SDLCALL.

12664 {
12665 #if DEBUG_CONVERT
12666  fprintf(stderr, "Upsample (x2) AUDIO_S32LSB, 6 channels.\n");
12667 #endif
12668 
12669  const int dstsize = cvt->len_cvt * 2;
12670  Sint32 *dst = ((Sint32 *) (cvt->buf + dstsize)) - 6 * 2;
12671  const Sint32 *src = ((Sint32 *) (cvt->buf + cvt->len_cvt)) - 6;
12672  const Sint32 *target = ((const Sint32 *) cvt->buf);
12673  Sint64 last_sample5 = (Sint64) ((Sint32) SDL_SwapLE32(src[5]));
12674  Sint64 last_sample4 = (Sint64) ((Sint32) SDL_SwapLE32(src[4]));
12675  Sint64 last_sample3 = (Sint64) ((Sint32) SDL_SwapLE32(src[3]));
12676  Sint64 last_sample2 = (Sint64) ((Sint32) SDL_SwapLE32(src[2]));
12677  Sint64 last_sample1 = (Sint64) ((Sint32) SDL_SwapLE32(src[1]));
12678  Sint64 last_sample0 = (Sint64) ((Sint32) SDL_SwapLE32(src[0]));
12679  while (dst >= target) {
12680  const Sint64 sample5 = (Sint64) ((Sint32) SDL_SwapLE32(src[5]));
12681  const Sint64 sample4 = (Sint64) ((Sint32) SDL_SwapLE32(src[4]));
12682  const Sint64 sample3 = (Sint64) ((Sint32) SDL_SwapLE32(src[3]));
12683  const Sint64 sample2 = (Sint64) ((Sint32) SDL_SwapLE32(src[2]));
12684  const Sint64 sample1 = (Sint64) ((Sint32) SDL_SwapLE32(src[1]));
12685  const Sint64 sample0 = (Sint64) ((Sint32) SDL_SwapLE32(src[0]));
12686  src -= 6;
12687  dst[11] = (Sint32) ((sample5 + last_sample5) >> 1);
12688  dst[10] = (Sint32) ((sample4 + last_sample4) >> 1);
12689  dst[9] = (Sint32) ((sample3 + last_sample3) >> 1);
12690  dst[8] = (Sint32) ((sample2 + last_sample2) >> 1);
12691  dst[7] = (Sint32) ((sample1 + last_sample1) >> 1);
12692  dst[6] = (Sint32) ((sample0 + last_sample0) >> 1);
12693  dst[5] = (Sint32) sample5;
12694  dst[4] = (Sint32) sample4;
12695  dst[3] = (Sint32) sample3;
12696  dst[2] = (Sint32) sample2;
12697  dst[1] = (Sint32) sample1;
12698  dst[0] = (Sint32) sample0;
12699  last_sample5 = sample5;
12700  last_sample4 = sample4;
12701  last_sample3 = sample3;
12702  last_sample2 = sample2;
12703  last_sample1 = sample1;
12704  last_sample0 = sample0;
12705  dst -= 12;
12706  }
12707 
12708  cvt->len_cvt = dstsize;
12709  if (cvt->filters[++cvt->filter_index]) {
12710  cvt->filters[cvt->filter_index] (cvt, format);
12711  }
12712 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
SDL_SwapLE32
#define SDL_SwapLE32(X)
Definition: SDL_endian.h:212
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
Sint64
int64_t Sint64
A signed 64-bit integer type.
Definition: SDL_stdinc.h:160
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Upsample_S32LSB_6c_x4 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 12761 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_SwapLE32, and SDLCALL.

12762 {
12763 #if DEBUG_CONVERT
12764  fprintf(stderr, "Upsample (x4) AUDIO_S32LSB, 6 channels.\n");
12765 #endif
12766 
12767  const int dstsize = cvt->len_cvt * 4;
12768  Sint32 *dst = ((Sint32 *) (cvt->buf + dstsize)) - 6 * 4;
12769  const Sint32 *src = ((Sint32 *) (cvt->buf + cvt->len_cvt)) - 6;
12770  const Sint32 *target = ((const Sint32 *) cvt->buf);
12771  Sint64 last_sample5 = (Sint64) ((Sint32) SDL_SwapLE32(src[5]));
12772  Sint64 last_sample4 = (Sint64) ((Sint32) SDL_SwapLE32(src[4]));
12773  Sint64 last_sample3 = (Sint64) ((Sint32) SDL_SwapLE32(src[3]));
12774  Sint64 last_sample2 = (Sint64) ((Sint32) SDL_SwapLE32(src[2]));
12775  Sint64 last_sample1 = (Sint64) ((Sint32) SDL_SwapLE32(src[1]));
12776  Sint64 last_sample0 = (Sint64) ((Sint32) SDL_SwapLE32(src[0]));
12777  while (dst >= target) {
12778  const Sint64 sample5 = (Sint64) ((Sint32) SDL_SwapLE32(src[5]));
12779  const Sint64 sample4 = (Sint64) ((Sint32) SDL_SwapLE32(src[4]));
12780  const Sint64 sample3 = (Sint64) ((Sint32) SDL_SwapLE32(src[3]));
12781  const Sint64 sample2 = (Sint64) ((Sint32) SDL_SwapLE32(src[2]));
12782  const Sint64 sample1 = (Sint64) ((Sint32) SDL_SwapLE32(src[1]));
12783  const Sint64 sample0 = (Sint64) ((Sint32) SDL_SwapLE32(src[0]));
12784  src -= 6;
12785  dst[23] = (Sint32) ((sample5 + (3 * last_sample5)) >> 2);
12786  dst[22] = (Sint32) ((sample4 + (3 * last_sample4)) >> 2);
12787  dst[21] = (Sint32) ((sample3 + (3 * last_sample3)) >> 2);
12788  dst[20] = (Sint32) ((sample2 + (3 * last_sample2)) >> 2);
12789  dst[19] = (Sint32) ((sample1 + (3 * last_sample1)) >> 2);
12790  dst[18] = (Sint32) ((sample0 + (3 * last_sample0)) >> 2);
12791  dst[17] = (Sint32) ((sample5 + last_sample5) >> 1);
12792  dst[16] = (Sint32) ((sample4 + last_sample4) >> 1);
12793  dst[15] = (Sint32) ((sample3 + last_sample3) >> 1);
12794  dst[14] = (Sint32) ((sample2 + last_sample2) >> 1);
12795  dst[13] = (Sint32) ((sample1 + last_sample1) >> 1);
12796  dst[12] = (Sint32) ((sample0 + last_sample0) >> 1);
12797  dst[11] = (Sint32) (((3 * sample5) + last_sample5) >> 2);
12798  dst[10] = (Sint32) (((3 * sample4) + last_sample4) >> 2);
12799  dst[9] = (Sint32) (((3 * sample3) + last_sample3) >> 2);
12800  dst[8] = (Sint32) (((3 * sample2) + last_sample2) >> 2);
12801  dst[7] = (Sint32) (((3 * sample1) + last_sample1) >> 2);
12802  dst[6] = (Sint32) (((3 * sample0) + last_sample0) >> 2);
12803  dst[5] = (Sint32) sample5;
12804  dst[4] = (Sint32) sample4;
12805  dst[3] = (Sint32) sample3;
12806  dst[2] = (Sint32) sample2;
12807  dst[1] = (Sint32) sample1;
12808  dst[0] = (Sint32) sample0;
12809  last_sample5 = sample5;
12810  last_sample4 = sample4;
12811  last_sample3 = sample3;
12812  last_sample2 = sample2;
12813  last_sample1 = sample1;
12814  last_sample0 = sample0;
12815  dst -= 24;
12816  }
12817 
12818  cvt->len_cvt = dstsize;
12819  if (cvt->filters[++cvt->filter_index]) {
12820  cvt->filters[cvt->filter_index] (cvt, format);
12821  }
12822 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
SDL_SwapLE32
#define SDL_SwapLE32(X)
Definition: SDL_endian.h:212
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
Sint64
int64_t Sint64
A signed 64-bit integer type.
Definition: SDL_stdinc.h:160
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Upsample_S32LSB_8c ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 5522 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_AudioCVT::rate_incr, SDL_SwapLE32, and SDLCALL.

5523 {
5524 #if DEBUG_CONVERT
5525  fprintf(stderr, "Upsample arbitrary (x%f) AUDIO_S32LSB, 8 channels.\n", cvt->rate_incr);
5526 #endif
5527 
5528  const int srcsize = cvt->len_cvt - 512;
5529  const int dstsize = (int) (((double)(cvt->len_cvt/32)) * cvt->rate_incr) * 32;
5530  register int eps = 0;
5531  Sint32 *dst = ((Sint32 *) (cvt->buf + dstsize)) - 8;
5532  const Sint32 *src = ((Sint32 *) (cvt->buf + cvt->len_cvt)) - 8;
5533  const Sint32 *target = ((const Sint32 *) cvt->buf);
5534  Sint32 sample7 = ((Sint32) SDL_SwapLE32(src[7]));
5535  Sint32 sample6 = ((Sint32) SDL_SwapLE32(src[6]));
5536  Sint32 sample5 = ((Sint32) SDL_SwapLE32(src[5]));
5537  Sint32 sample4 = ((Sint32) SDL_SwapLE32(src[4]));
5538  Sint32 sample3 = ((Sint32) SDL_SwapLE32(src[3]));
5539  Sint32 sample2 = ((Sint32) SDL_SwapLE32(src[2]));
5540  Sint32 sample1 = ((Sint32) SDL_SwapLE32(src[1]));
5541  Sint32 sample0 = ((Sint32) SDL_SwapLE32(src[0]));
5542  Sint32 last_sample7 = sample7;
5543  Sint32 last_sample6 = sample6;
5544  Sint32 last_sample5 = sample5;
5545  Sint32 last_sample4 = sample4;
5546  Sint32 last_sample3 = sample3;
5547  Sint32 last_sample2 = sample2;
5548  Sint32 last_sample1 = sample1;
5549  Sint32 last_sample0 = sample0;
5550  while (dst >= target) {
5551  dst[7] = ((Sint32) SDL_SwapLE32(sample7));
5552  dst[6] = ((Sint32) SDL_SwapLE32(sample6));
5553  dst[5] = ((Sint32) SDL_SwapLE32(sample5));
5554  dst[4] = ((Sint32) SDL_SwapLE32(sample4));
5555  dst[3] = ((Sint32) SDL_SwapLE32(sample3));
5556  dst[2] = ((Sint32) SDL_SwapLE32(sample2));
5557  dst[1] = ((Sint32) SDL_SwapLE32(sample1));
5558  dst[0] = ((Sint32) SDL_SwapLE32(sample0));
5559  dst -= 8;
5560  eps += srcsize;
5561  if ((eps << 1) >= dstsize) {
5562  src -= 8;
5563  sample7 = (Sint32) ((((Sint64) ((Sint32) SDL_SwapLE32(src[7]))) + ((Sint64) last_sample7)) >> 1);
5564  sample6 = (Sint32) ((((Sint64) ((Sint32) SDL_SwapLE32(src[6]))) + ((Sint64) last_sample6)) >> 1);
5565  sample5 = (Sint32) ((((Sint64) ((Sint32) SDL_SwapLE32(src[5]))) + ((Sint64) last_sample5)) >> 1);
5566  sample4 = (Sint32) ((((Sint64) ((Sint32) SDL_SwapLE32(src[4]))) + ((Sint64) last_sample4)) >> 1);
5567  sample3 = (Sint32) ((((Sint64) ((Sint32) SDL_SwapLE32(src[3]))) + ((Sint64) last_sample3)) >> 1);
5568  sample2 = (Sint32) ((((Sint64) ((Sint32) SDL_SwapLE32(src[2]))) + ((Sint64) last_sample2)) >> 1);
5569  sample1 = (Sint32) ((((Sint64) ((Sint32) SDL_SwapLE32(src[1]))) + ((Sint64) last_sample1)) >> 1);
5570  sample0 = (Sint32) ((((Sint64) ((Sint32) SDL_SwapLE32(src[0]))) + ((Sint64) last_sample0)) >> 1);
5571  last_sample7 = sample7;
5572  last_sample6 = sample6;
5573  last_sample5 = sample5;
5574  last_sample4 = sample4;
5575  last_sample3 = sample3;
5576  last_sample2 = sample2;
5577  last_sample1 = sample1;
5578  last_sample0 = sample0;
5579  eps -= dstsize;
5580  }
5581  }
5582  cvt->len_cvt = dstsize;
5583  if (cvt->filters[++cvt->filter_index]) {
5584  cvt->filters[cvt->filter_index] (cvt, format);
5585  }
5586 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
SDL_SwapLE32
#define SDL_SwapLE32(X)
Definition: SDL_endian.h:212
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
SDL_AudioCVT::rate_incr
double rate_incr
Definition: SDL_audio.h:205
Sint64
int64_t Sint64
A signed 64-bit integer type.
Definition: SDL_stdinc.h:160
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Upsample_S32LSB_8c_x2 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 12871 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_SwapLE32, and SDLCALL.

12872 {
12873 #if DEBUG_CONVERT
12874  fprintf(stderr, "Upsample (x2) AUDIO_S32LSB, 8 channels.\n");
12875 #endif
12876 
12877  const int dstsize = cvt->len_cvt * 2;
12878  Sint32 *dst = ((Sint32 *) (cvt->buf + dstsize)) - 8 * 2;
12879  const Sint32 *src = ((Sint32 *) (cvt->buf + cvt->len_cvt)) - 8;
12880  const Sint32 *target = ((const Sint32 *) cvt->buf);
12881  Sint64 last_sample7 = (Sint64) ((Sint32) SDL_SwapLE32(src[7]));
12882  Sint64 last_sample6 = (Sint64) ((Sint32) SDL_SwapLE32(src[6]));
12883  Sint64 last_sample5 = (Sint64) ((Sint32) SDL_SwapLE32(src[5]));
12884  Sint64 last_sample4 = (Sint64) ((Sint32) SDL_SwapLE32(src[4]));
12885  Sint64 last_sample3 = (Sint64) ((Sint32) SDL_SwapLE32(src[3]));
12886  Sint64 last_sample2 = (Sint64) ((Sint32) SDL_SwapLE32(src[2]));
12887  Sint64 last_sample1 = (Sint64) ((Sint32) SDL_SwapLE32(src[1]));
12888  Sint64 last_sample0 = (Sint64) ((Sint32) SDL_SwapLE32(src[0]));
12889  while (dst >= target) {
12890  const Sint64 sample7 = (Sint64) ((Sint32) SDL_SwapLE32(src[7]));
12891  const Sint64 sample6 = (Sint64) ((Sint32) SDL_SwapLE32(src[6]));
12892  const Sint64 sample5 = (Sint64) ((Sint32) SDL_SwapLE32(src[5]));
12893  const Sint64 sample4 = (Sint64) ((Sint32) SDL_SwapLE32(src[4]));
12894  const Sint64 sample3 = (Sint64) ((Sint32) SDL_SwapLE32(src[3]));
12895  const Sint64 sample2 = (Sint64) ((Sint32) SDL_SwapLE32(src[2]));
12896  const Sint64 sample1 = (Sint64) ((Sint32) SDL_SwapLE32(src[1]));
12897  const Sint64 sample0 = (Sint64) ((Sint32) SDL_SwapLE32(src[0]));
12898  src -= 8;
12899  dst[15] = (Sint32) ((sample7 + last_sample7) >> 1);
12900  dst[14] = (Sint32) ((sample6 + last_sample6) >> 1);
12901  dst[13] = (Sint32) ((sample5 + last_sample5) >> 1);
12902  dst[12] = (Sint32) ((sample4 + last_sample4) >> 1);
12903  dst[11] = (Sint32) ((sample3 + last_sample3) >> 1);
12904  dst[10] = (Sint32) ((sample2 + last_sample2) >> 1);
12905  dst[9] = (Sint32) ((sample1 + last_sample1) >> 1);
12906  dst[8] = (Sint32) ((sample0 + last_sample0) >> 1);
12907  dst[7] = (Sint32) sample7;
12908  dst[6] = (Sint32) sample6;
12909  dst[5] = (Sint32) sample5;
12910  dst[4] = (Sint32) sample4;
12911  dst[3] = (Sint32) sample3;
12912  dst[2] = (Sint32) sample2;
12913  dst[1] = (Sint32) sample1;
12914  dst[0] = (Sint32) sample0;
12915  last_sample7 = sample7;
12916  last_sample6 = sample6;
12917  last_sample5 = sample5;
12918  last_sample4 = sample4;
12919  last_sample3 = sample3;
12920  last_sample2 = sample2;
12921  last_sample1 = sample1;
12922  last_sample0 = sample0;
12923  dst -= 16;
12924  }
12925 
12926  cvt->len_cvt = dstsize;
12927  if (cvt->filters[++cvt->filter_index]) {
12928  cvt->filters[cvt->filter_index] (cvt, format);
12929  }
12930 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
SDL_SwapLE32
#define SDL_SwapLE32(X)
Definition: SDL_endian.h:212
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
Sint64
int64_t Sint64
A signed 64-bit integer type.
Definition: SDL_stdinc.h:160
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Upsample_S32LSB_8c_x4 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 12987 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_SwapLE32, and SDLCALL.

12988 {
12989 #if DEBUG_CONVERT
12990  fprintf(stderr, "Upsample (x4) AUDIO_S32LSB, 8 channels.\n");
12991 #endif
12992 
12993  const int dstsize = cvt->len_cvt * 4;
12994  Sint32 *dst = ((Sint32 *) (cvt->buf + dstsize)) - 8 * 4;
12995  const Sint32 *src = ((Sint32 *) (cvt->buf + cvt->len_cvt)) - 8;
12996  const Sint32 *target = ((const Sint32 *) cvt->buf);
12997  Sint64 last_sample7 = (Sint64) ((Sint32) SDL_SwapLE32(src[7]));
12998  Sint64 last_sample6 = (Sint64) ((Sint32) SDL_SwapLE32(src[6]));
12999  Sint64 last_sample5 = (Sint64) ((Sint32) SDL_SwapLE32(src[5]));
13000  Sint64 last_sample4 = (Sint64) ((Sint32) SDL_SwapLE32(src[4]));
13001  Sint64 last_sample3 = (Sint64) ((Sint32) SDL_SwapLE32(src[3]));
13002  Sint64 last_sample2 = (Sint64) ((Sint32) SDL_SwapLE32(src[2]));
13003  Sint64 last_sample1 = (Sint64) ((Sint32) SDL_SwapLE32(src[1]));
13004  Sint64 last_sample0 = (Sint64) ((Sint32) SDL_SwapLE32(src[0]));
13005  while (dst >= target) {
13006  const Sint64 sample7 = (Sint64) ((Sint32) SDL_SwapLE32(src[7]));
13007  const Sint64 sample6 = (Sint64) ((Sint32) SDL_SwapLE32(src[6]));
13008  const Sint64 sample5 = (Sint64) ((Sint32) SDL_SwapLE32(src[5]));
13009  const Sint64 sample4 = (Sint64) ((Sint32) SDL_SwapLE32(src[4]));
13010  const Sint64 sample3 = (Sint64) ((Sint32) SDL_SwapLE32(src[3]));
13011  const Sint64 sample2 = (Sint64) ((Sint32) SDL_SwapLE32(src[2]));
13012  const Sint64 sample1 = (Sint64) ((Sint32) SDL_SwapLE32(src[1]));
13013  const Sint64 sample0 = (Sint64) ((Sint32) SDL_SwapLE32(src[0]));
13014  src -= 8;
13015  dst[31] = (Sint32) ((sample7 + (3 * last_sample7)) >> 2);
13016  dst[30] = (Sint32) ((sample6 + (3 * last_sample6)) >> 2);
13017  dst[29] = (Sint32) ((sample5 + (3 * last_sample5)) >> 2);
13018  dst[28] = (Sint32) ((sample4 + (3 * last_sample4)) >> 2);
13019  dst[27] = (Sint32) ((sample3 + (3 * last_sample3)) >> 2);
13020  dst[26] = (Sint32) ((sample2 + (3 * last_sample2)) >> 2);
13021  dst[25] = (Sint32) ((sample1 + (3 * last_sample1)) >> 2);
13022  dst[24] = (Sint32) ((sample0 + (3 * last_sample0)) >> 2);
13023  dst[23] = (Sint32) ((sample7 + last_sample7) >> 1);
13024  dst[22] = (Sint32) ((sample6 + last_sample6) >> 1);
13025  dst[21] = (Sint32) ((sample5 + last_sample5) >> 1);
13026  dst[20] = (Sint32) ((sample4 + last_sample4) >> 1);
13027  dst[19] = (Sint32) ((sample3 + last_sample3) >> 1);
13028  dst[18] = (Sint32) ((sample2 + last_sample2) >> 1);
13029  dst[17] = (Sint32) ((sample1 + last_sample1) >> 1);
13030  dst[16] = (Sint32) ((sample0 + last_sample0) >> 1);
13031  dst[15] = (Sint32) (((3 * sample7) + last_sample7) >> 2);
13032  dst[14] = (Sint32) (((3 * sample6) + last_sample6) >> 2);
13033  dst[13] = (Sint32) (((3 * sample5) + last_sample5) >> 2);
13034  dst[12] = (Sint32) (((3 * sample4) + last_sample4) >> 2);
13035  dst[11] = (Sint32) (((3 * sample3) + last_sample3) >> 2);
13036  dst[10] = (Sint32) (((3 * sample2) + last_sample2) >> 2);
13037  dst[9] = (Sint32) (((3 * sample1) + last_sample1) >> 2);
13038  dst[8] = (Sint32) (((3 * sample0) + last_sample0) >> 2);
13039  dst[7] = (Sint32) sample7;
13040  dst[6] = (Sint32) sample6;
13041  dst[5] = (Sint32) sample5;
13042  dst[4] = (Sint32) sample4;
13043  dst[3] = (Sint32) sample3;
13044  dst[2] = (Sint32) sample2;
13045  dst[1] = (Sint32) sample1;
13046  dst[0] = (Sint32) sample0;
13047  last_sample7 = sample7;
13048  last_sample6 = sample6;
13049  last_sample5 = sample5;
13050  last_sample4 = sample4;
13051  last_sample3 = sample3;
13052  last_sample2 = sample2;
13053  last_sample1 = sample1;
13054  last_sample0 = sample0;
13055  dst -= 32;
13056  }
13057 
13058  cvt->len_cvt = dstsize;
13059  if (cvt->filters[++cvt->filter_index]) {
13060  cvt->filters[cvt->filter_index] (cvt, format);
13061  }
13062 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
SDL_SwapLE32
#define SDL_SwapLE32(X)
Definition: SDL_endian.h:212
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
Sint64
int64_t Sint64
A signed 64-bit integer type.
Definition: SDL_stdinc.h:160
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Upsample_S32MSB_1c ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 5656 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_AudioCVT::rate_incr, SDL_SwapBE32, and SDLCALL.

5657 {
5658 #if DEBUG_CONVERT
5659  fprintf(stderr, "Upsample arbitrary (x%f) AUDIO_S32MSB, 1 channels.\n", cvt->rate_incr);
5660 #endif
5661 
5662  const int srcsize = cvt->len_cvt - 64;
5663  const int dstsize = (int) (((double)(cvt->len_cvt/4)) * cvt->rate_incr) * 4;
5664  register int eps = 0;
5665  Sint32 *dst = ((Sint32 *) (cvt->buf + dstsize)) - 1;
5666  const Sint32 *src = ((Sint32 *) (cvt->buf + cvt->len_cvt)) - 1;
5667  const Sint32 *target = ((const Sint32 *) cvt->buf);
5668  Sint32 sample0 = ((Sint32) SDL_SwapBE32(src[0]));
5669  Sint32 last_sample0 = sample0;
5670  while (dst >= target) {
5671  dst[0] = ((Sint32) SDL_SwapBE32(sample0));
5672  dst--;
5673  eps += srcsize;
5674  if ((eps << 1) >= dstsize) {
5675  src--;
5676  sample0 = (Sint32) ((((Sint64) ((Sint32) SDL_SwapBE32(src[0]))) + ((Sint64) last_sample0)) >> 1);
5677  last_sample0 = sample0;
5678  eps -= dstsize;
5679  }
5680  }
5681  cvt->len_cvt = dstsize;
5682  if (cvt->filters[++cvt->filter_index]) {
5683  cvt->filters[cvt->filter_index] (cvt, format);
5684  }
5685 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_SwapBE32
#define SDL_SwapBE32(X)
Definition: SDL_endian.h:216
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
SDL_AudioCVT::rate_incr
double rate_incr
Definition: SDL_audio.h:205
Sint64
int64_t Sint64
A signed 64-bit integer type.
Definition: SDL_stdinc.h:160
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Upsample_S32MSB_1c_x2 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 13119 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_SwapBE32, and SDLCALL.

13120 {
13121 #if DEBUG_CONVERT
13122  fprintf(stderr, "Upsample (x2) AUDIO_S32MSB, 1 channels.\n");
13123 #endif
13124 
13125  const int dstsize = cvt->len_cvt * 2;
13126  Sint32 *dst = ((Sint32 *) (cvt->buf + dstsize)) - 1 * 2;
13127  const Sint32 *src = ((Sint32 *) (cvt->buf + cvt->len_cvt)) - 1;
13128  const Sint32 *target = ((const Sint32 *) cvt->buf);
13129  Sint64 last_sample0 = (Sint64) ((Sint32) SDL_SwapBE32(src[0]));
13130  while (dst >= target) {
13131  const Sint64 sample0 = (Sint64) ((Sint32) SDL_SwapBE32(src[0]));
13132  src--;
13133  dst[1] = (Sint32) ((sample0 + last_sample0) >> 1);
13134  dst[0] = (Sint32) sample0;
13135  last_sample0 = sample0;
13136  dst -= 2;
13137  }
13138 
13139  cvt->len_cvt = dstsize;
13140  if (cvt->filters[++cvt->filter_index]) {
13141  cvt->filters[cvt->filter_index] (cvt, format);
13142  }
13143 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_SwapBE32
#define SDL_SwapBE32(X)
Definition: SDL_endian.h:216
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
Sint64
int64_t Sint64
A signed 64-bit integer type.
Definition: SDL_stdinc.h:160
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Upsample_S32MSB_1c_x4 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 13172 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_SwapBE32, and SDLCALL.

13173 {
13174 #if DEBUG_CONVERT
13175  fprintf(stderr, "Upsample (x4) AUDIO_S32MSB, 1 channels.\n");
13176 #endif
13177 
13178  const int dstsize = cvt->len_cvt * 4;
13179  Sint32 *dst = ((Sint32 *) (cvt->buf + dstsize)) - 1 * 4;
13180  const Sint32 *src = ((Sint32 *) (cvt->buf + cvt->len_cvt)) - 1;
13181  const Sint32 *target = ((const Sint32 *) cvt->buf);
13182  Sint64 last_sample0 = (Sint64) ((Sint32) SDL_SwapBE32(src[0]));
13183  while (dst >= target) {
13184  const Sint64 sample0 = (Sint64) ((Sint32) SDL_SwapBE32(src[0]));
13185  src--;
13186  dst[3] = (Sint32) ((sample0 + (3 * last_sample0)) >> 2);
13187  dst[2] = (Sint32) ((sample0 + last_sample0) >> 1);
13188  dst[1] = (Sint32) (((3 * sample0) + last_sample0) >> 2);
13189  dst[0] = (Sint32) sample0;
13190  last_sample0 = sample0;
13191  dst -= 4;
13192  }
13193 
13194  cvt->len_cvt = dstsize;
13195  if (cvt->filters[++cvt->filter_index]) {
13196  cvt->filters[cvt->filter_index] (cvt, format);
13197  }
13198 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_SwapBE32
#define SDL_SwapBE32(X)
Definition: SDL_endian.h:216
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
Sint64
int64_t Sint64
A signed 64-bit integer type.
Definition: SDL_stdinc.h:160
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Upsample_S32MSB_2c ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 5720 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_AudioCVT::rate_incr, SDL_SwapBE32, and SDLCALL.

5721 {
5722 #if DEBUG_CONVERT
5723  fprintf(stderr, "Upsample arbitrary (x%f) AUDIO_S32MSB, 2 channels.\n", cvt->rate_incr);
5724 #endif
5725 
5726  const int srcsize = cvt->len_cvt - 128;
5727  const int dstsize = (int) (((double)(cvt->len_cvt/8)) * cvt->rate_incr) * 8;
5728  register int eps = 0;
5729  Sint32 *dst = ((Sint32 *) (cvt->buf + dstsize)) - 2;
5730  const Sint32 *src = ((Sint32 *) (cvt->buf + cvt->len_cvt)) - 2;
5731  const Sint32 *target = ((const Sint32 *) cvt->buf);
5732  Sint32 sample1 = ((Sint32) SDL_SwapBE32(src[1]));
5733  Sint32 sample0 = ((Sint32) SDL_SwapBE32(src[0]));
5734  Sint32 last_sample1 = sample1;
5735  Sint32 last_sample0 = sample0;
5736  while (dst >= target) {
5737  dst[1] = ((Sint32) SDL_SwapBE32(sample1));
5738  dst[0] = ((Sint32) SDL_SwapBE32(sample0));
5739  dst -= 2;
5740  eps += srcsize;
5741  if ((eps << 1) >= dstsize) {
5742  src -= 2;
5743  sample1 = (Sint32) ((((Sint64) ((Sint32) SDL_SwapBE32(src[1]))) + ((Sint64) last_sample1)) >> 1);
5744  sample0 = (Sint32) ((((Sint64) ((Sint32) SDL_SwapBE32(src[0]))) + ((Sint64) last_sample0)) >> 1);
5745  last_sample1 = sample1;
5746  last_sample0 = sample0;
5747  eps -= dstsize;
5748  }
5749  }
5750  cvt->len_cvt = dstsize;
5751  if (cvt->filters[++cvt->filter_index]) {
5752  cvt->filters[cvt->filter_index] (cvt, format);
5753  }
5754 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_SwapBE32
#define SDL_SwapBE32(X)
Definition: SDL_endian.h:216
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
SDL_AudioCVT::rate_incr
double rate_incr
Definition: SDL_audio.h:205
Sint64
int64_t Sint64
A signed 64-bit integer type.
Definition: SDL_stdinc.h:160
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Upsample_S32MSB_2c_x2 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 13227 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_SwapBE32, and SDLCALL.

13228 {
13229 #if DEBUG_CONVERT
13230  fprintf(stderr, "Upsample (x2) AUDIO_S32MSB, 2 channels.\n");
13231 #endif
13232 
13233  const int dstsize = cvt->len_cvt * 2;
13234  Sint32 *dst = ((Sint32 *) (cvt->buf + dstsize)) - 2 * 2;
13235  const Sint32 *src = ((Sint32 *) (cvt->buf + cvt->len_cvt)) - 2;
13236  const Sint32 *target = ((const Sint32 *) cvt->buf);
13237  Sint64 last_sample1 = (Sint64) ((Sint32) SDL_SwapBE32(src[1]));
13238  Sint64 last_sample0 = (Sint64) ((Sint32) SDL_SwapBE32(src[0]));
13239  while (dst >= target) {
13240  const Sint64 sample1 = (Sint64) ((Sint32) SDL_SwapBE32(src[1]));
13241  const Sint64 sample0 = (Sint64) ((Sint32) SDL_SwapBE32(src[0]));
13242  src -= 2;
13243  dst[3] = (Sint32) ((sample1 + last_sample1) >> 1);
13244  dst[2] = (Sint32) ((sample0 + last_sample0) >> 1);
13245  dst[1] = (Sint32) sample1;
13246  dst[0] = (Sint32) sample0;
13247  last_sample1 = sample1;
13248  last_sample0 = sample0;
13249  dst -= 4;
13250  }
13251 
13252  cvt->len_cvt = dstsize;
13253  if (cvt->filters[++cvt->filter_index]) {
13254  cvt->filters[cvt->filter_index] (cvt, format);
13255  }
13256 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_SwapBE32
#define SDL_SwapBE32(X)
Definition: SDL_endian.h:216
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
Sint64
int64_t Sint64
A signed 64-bit integer type.
Definition: SDL_stdinc.h:160
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Upsample_S32MSB_2c_x4 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 13289 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_SwapBE32, and SDLCALL.

13290 {
13291 #if DEBUG_CONVERT
13292  fprintf(stderr, "Upsample (x4) AUDIO_S32MSB, 2 channels.\n");
13293 #endif
13294 
13295  const int dstsize = cvt->len_cvt * 4;
13296  Sint32 *dst = ((Sint32 *) (cvt->buf + dstsize)) - 2 * 4;
13297  const Sint32 *src = ((Sint32 *) (cvt->buf + cvt->len_cvt)) - 2;
13298  const Sint32 *target = ((const Sint32 *) cvt->buf);
13299  Sint64 last_sample1 = (Sint64) ((Sint32) SDL_SwapBE32(src[1]));
13300  Sint64 last_sample0 = (Sint64) ((Sint32) SDL_SwapBE32(src[0]));
13301  while (dst >= target) {
13302  const Sint64 sample1 = (Sint64) ((Sint32) SDL_SwapBE32(src[1]));
13303  const Sint64 sample0 = (Sint64) ((Sint32) SDL_SwapBE32(src[0]));
13304  src -= 2;
13305  dst[7] = (Sint32) ((sample1 + (3 * last_sample1)) >> 2);
13306  dst[6] = (Sint32) ((sample0 + (3 * last_sample0)) >> 2);
13307  dst[5] = (Sint32) ((sample1 + last_sample1) >> 1);
13308  dst[4] = (Sint32) ((sample0 + last_sample0) >> 1);
13309  dst[3] = (Sint32) (((3 * sample1) + last_sample1) >> 2);
13310  dst[2] = (Sint32) (((3 * sample0) + last_sample0) >> 2);
13311  dst[1] = (Sint32) sample1;
13312  dst[0] = (Sint32) sample0;
13313  last_sample1 = sample1;
13314  last_sample0 = sample0;
13315  dst -= 8;
13316  }
13317 
13318  cvt->len_cvt = dstsize;
13319  if (cvt->filters[++cvt->filter_index]) {
13320  cvt->filters[cvt->filter_index] (cvt, format);
13321  }
13322 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_SwapBE32
#define SDL_SwapBE32(X)
Definition: SDL_endian.h:216
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
Sint64
int64_t Sint64
A signed 64-bit integer type.
Definition: SDL_stdinc.h:160
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Upsample_S32MSB_4c ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 5794 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_AudioCVT::rate_incr, SDL_SwapBE32, and SDLCALL.

5795 {
5796 #if DEBUG_CONVERT
5797  fprintf(stderr, "Upsample arbitrary (x%f) AUDIO_S32MSB, 4 channels.\n", cvt->rate_incr);
5798 #endif
5799 
5800  const int srcsize = cvt->len_cvt - 256;
5801  const int dstsize = (int) (((double)(cvt->len_cvt/16)) * cvt->rate_incr) * 16;
5802  register int eps = 0;
5803  Sint32 *dst = ((Sint32 *) (cvt->buf + dstsize)) - 4;
5804  const Sint32 *src = ((Sint32 *) (cvt->buf + cvt->len_cvt)) - 4;
5805  const Sint32 *target = ((const Sint32 *) cvt->buf);
5806  Sint32 sample3 = ((Sint32) SDL_SwapBE32(src[3]));
5807  Sint32 sample2 = ((Sint32) SDL_SwapBE32(src[2]));
5808  Sint32 sample1 = ((Sint32) SDL_SwapBE32(src[1]));
5809  Sint32 sample0 = ((Sint32) SDL_SwapBE32(src[0]));
5810  Sint32 last_sample3 = sample3;
5811  Sint32 last_sample2 = sample2;
5812  Sint32 last_sample1 = sample1;
5813  Sint32 last_sample0 = sample0;
5814  while (dst >= target) {
5815  dst[3] = ((Sint32) SDL_SwapBE32(sample3));
5816  dst[2] = ((Sint32) SDL_SwapBE32(sample2));
5817  dst[1] = ((Sint32) SDL_SwapBE32(sample1));
5818  dst[0] = ((Sint32) SDL_SwapBE32(sample0));
5819  dst -= 4;
5820  eps += srcsize;
5821  if ((eps << 1) >= dstsize) {
5822  src -= 4;
5823  sample3 = (Sint32) ((((Sint64) ((Sint32) SDL_SwapBE32(src[3]))) + ((Sint64) last_sample3)) >> 1);
5824  sample2 = (Sint32) ((((Sint64) ((Sint32) SDL_SwapBE32(src[2]))) + ((Sint64) last_sample2)) >> 1);
5825  sample1 = (Sint32) ((((Sint64) ((Sint32) SDL_SwapBE32(src[1]))) + ((Sint64) last_sample1)) >> 1);
5826  sample0 = (Sint32) ((((Sint64) ((Sint32) SDL_SwapBE32(src[0]))) + ((Sint64) last_sample0)) >> 1);
5827  last_sample3 = sample3;
5828  last_sample2 = sample2;
5829  last_sample1 = sample1;
5830  last_sample0 = sample0;
5831  eps -= dstsize;
5832  }
5833  }
5834  cvt->len_cvt = dstsize;
5835  if (cvt->filters[++cvt->filter_index]) {
5836  cvt->filters[cvt->filter_index] (cvt, format);
5837  }
5838 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_SwapBE32
#define SDL_SwapBE32(X)
Definition: SDL_endian.h:216
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
SDL_AudioCVT::rate_incr
double rate_incr
Definition: SDL_audio.h:205
Sint64
int64_t Sint64
A signed 64-bit integer type.
Definition: SDL_stdinc.h:160
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Upsample_S32MSB_4c_x2 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 13355 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_SwapBE32, and SDLCALL.

13356 {
13357 #if DEBUG_CONVERT
13358  fprintf(stderr, "Upsample (x2) AUDIO_S32MSB, 4 channels.\n");
13359 #endif
13360 
13361  const int dstsize = cvt->len_cvt * 2;
13362  Sint32 *dst = ((Sint32 *) (cvt->buf + dstsize)) - 4 * 2;
13363  const Sint32 *src = ((Sint32 *) (cvt->buf + cvt->len_cvt)) - 4;
13364  const Sint32 *target = ((const Sint32 *) cvt->buf);
13365  Sint64 last_sample3 = (Sint64) ((Sint32) SDL_SwapBE32(src[3]));
13366  Sint64 last_sample2 = (Sint64) ((Sint32) SDL_SwapBE32(src[2]));
13367  Sint64 last_sample1 = (Sint64) ((Sint32) SDL_SwapBE32(src[1]));
13368  Sint64 last_sample0 = (Sint64) ((Sint32) SDL_SwapBE32(src[0]));
13369  while (dst >= target) {
13370  const Sint64 sample3 = (Sint64) ((Sint32) SDL_SwapBE32(src[3]));
13371  const Sint64 sample2 = (Sint64) ((Sint32) SDL_SwapBE32(src[2]));
13372  const Sint64 sample1 = (Sint64) ((Sint32) SDL_SwapBE32(src[1]));
13373  const Sint64 sample0 = (Sint64) ((Sint32) SDL_SwapBE32(src[0]));
13374  src -= 4;
13375  dst[7] = (Sint32) ((sample3 + last_sample3) >> 1);
13376  dst[6] = (Sint32) ((sample2 + last_sample2) >> 1);
13377  dst[5] = (Sint32) ((sample1 + last_sample1) >> 1);
13378  dst[4] = (Sint32) ((sample0 + last_sample0) >> 1);
13379  dst[3] = (Sint32) sample3;
13380  dst[2] = (Sint32) sample2;
13381  dst[1] = (Sint32) sample1;
13382  dst[0] = (Sint32) sample0;
13383  last_sample3 = sample3;
13384  last_sample2 = sample2;
13385  last_sample1 = sample1;
13386  last_sample0 = sample0;
13387  dst -= 8;
13388  }
13389 
13390  cvt->len_cvt = dstsize;
13391  if (cvt->filters[++cvt->filter_index]) {
13392  cvt->filters[cvt->filter_index] (cvt, format);
13393  }
13394 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_SwapBE32
#define SDL_SwapBE32(X)
Definition: SDL_endian.h:216
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
Sint64
int64_t Sint64
A signed 64-bit integer type.
Definition: SDL_stdinc.h:160
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Upsample_S32MSB_4c_x4 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 13435 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_SwapBE32, and SDLCALL.

13436 {
13437 #if DEBUG_CONVERT
13438  fprintf(stderr, "Upsample (x4) AUDIO_S32MSB, 4 channels.\n");
13439 #endif
13440 
13441  const int dstsize = cvt->len_cvt * 4;
13442  Sint32 *dst = ((Sint32 *) (cvt->buf + dstsize)) - 4 * 4;
13443  const Sint32 *src = ((Sint32 *) (cvt->buf + cvt->len_cvt)) - 4;
13444  const Sint32 *target = ((const Sint32 *) cvt->buf);
13445  Sint64 last_sample3 = (Sint64) ((Sint32) SDL_SwapBE32(src[3]));
13446  Sint64 last_sample2 = (Sint64) ((Sint32) SDL_SwapBE32(src[2]));
13447  Sint64 last_sample1 = (Sint64) ((Sint32) SDL_SwapBE32(src[1]));
13448  Sint64 last_sample0 = (Sint64) ((Sint32) SDL_SwapBE32(src[0]));
13449  while (dst >= target) {
13450  const Sint64 sample3 = (Sint64) ((Sint32) SDL_SwapBE32(src[3]));
13451  const Sint64 sample2 = (Sint64) ((Sint32) SDL_SwapBE32(src[2]));
13452  const Sint64 sample1 = (Sint64) ((Sint32) SDL_SwapBE32(src[1]));
13453  const Sint64 sample0 = (Sint64) ((Sint32) SDL_SwapBE32(src[0]));
13454  src -= 4;
13455  dst[15] = (Sint32) ((sample3 + (3 * last_sample3)) >> 2);
13456  dst[14] = (Sint32) ((sample2 + (3 * last_sample2)) >> 2);
13457  dst[13] = (Sint32) ((sample1 + (3 * last_sample1)) >> 2);
13458  dst[12] = (Sint32) ((sample0 + (3 * last_sample0)) >> 2);
13459  dst[11] = (Sint32) ((sample3 + last_sample3) >> 1);
13460  dst[10] = (Sint32) ((sample2 + last_sample2) >> 1);
13461  dst[9] = (Sint32) ((sample1 + last_sample1) >> 1);
13462  dst[8] = (Sint32) ((sample0 + last_sample0) >> 1);
13463  dst[7] = (Sint32) (((3 * sample3) + last_sample3) >> 2);
13464  dst[6] = (Sint32) (((3 * sample2) + last_sample2) >> 2);
13465  dst[5] = (Sint32) (((3 * sample1) + last_sample1) >> 2);
13466  dst[4] = (Sint32) (((3 * sample0) + last_sample0) >> 2);
13467  dst[3] = (Sint32) sample3;
13468  dst[2] = (Sint32) sample2;
13469  dst[1] = (Sint32) sample1;
13470  dst[0] = (Sint32) sample0;
13471  last_sample3 = sample3;
13472  last_sample2 = sample2;
13473  last_sample1 = sample1;
13474  last_sample0 = sample0;
13475  dst -= 16;
13476  }
13477 
13478  cvt->len_cvt = dstsize;
13479  if (cvt->filters[++cvt->filter_index]) {
13480  cvt->filters[cvt->filter_index] (cvt, format);
13481  }
13482 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_SwapBE32
#define SDL_SwapBE32(X)
Definition: SDL_endian.h:216
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
Sint64
int64_t Sint64
A signed 64-bit integer type.
Definition: SDL_stdinc.h:160
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Upsample_S32MSB_6c ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 5888 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_AudioCVT::rate_incr, SDL_SwapBE32, and SDLCALL.

5889 {
5890 #if DEBUG_CONVERT
5891  fprintf(stderr, "Upsample arbitrary (x%f) AUDIO_S32MSB, 6 channels.\n", cvt->rate_incr);
5892 #endif
5893 
5894  const int srcsize = cvt->len_cvt - 384;
5895  const int dstsize = (int) (((double)(cvt->len_cvt/24)) * cvt->rate_incr) * 24;
5896  register int eps = 0;
5897  Sint32 *dst = ((Sint32 *) (cvt->buf + dstsize)) - 6;
5898  const Sint32 *src = ((Sint32 *) (cvt->buf + cvt->len_cvt)) - 6;
5899  const Sint32 *target = ((const Sint32 *) cvt->buf);
5900  Sint32 sample5 = ((Sint32) SDL_SwapBE32(src[5]));
5901  Sint32 sample4 = ((Sint32) SDL_SwapBE32(src[4]));
5902  Sint32 sample3 = ((Sint32) SDL_SwapBE32(src[3]));
5903  Sint32 sample2 = ((Sint32) SDL_SwapBE32(src[2]));
5904  Sint32 sample1 = ((Sint32) SDL_SwapBE32(src[1]));
5905  Sint32 sample0 = ((Sint32) SDL_SwapBE32(src[0]));
5906  Sint32 last_sample5 = sample5;
5907  Sint32 last_sample4 = sample4;
5908  Sint32 last_sample3 = sample3;
5909  Sint32 last_sample2 = sample2;
5910  Sint32 last_sample1 = sample1;
5911  Sint32 last_sample0 = sample0;
5912  while (dst >= target) {
5913  dst[5] = ((Sint32) SDL_SwapBE32(sample5));
5914  dst[4] = ((Sint32) SDL_SwapBE32(sample4));
5915  dst[3] = ((Sint32) SDL_SwapBE32(sample3));
5916  dst[2] = ((Sint32) SDL_SwapBE32(sample2));
5917  dst[1] = ((Sint32) SDL_SwapBE32(sample1));
5918  dst[0] = ((Sint32) SDL_SwapBE32(sample0));
5919  dst -= 6;
5920  eps += srcsize;
5921  if ((eps << 1) >= dstsize) {
5922  src -= 6;
5923  sample5 = (Sint32) ((((Sint64) ((Sint32) SDL_SwapBE32(src[5]))) + ((Sint64) last_sample5)) >> 1);
5924  sample4 = (Sint32) ((((Sint64) ((Sint32) SDL_SwapBE32(src[4]))) + ((Sint64) last_sample4)) >> 1);
5925  sample3 = (Sint32) ((((Sint64) ((Sint32) SDL_SwapBE32(src[3]))) + ((Sint64) last_sample3)) >> 1);
5926  sample2 = (Sint32) ((((Sint64) ((Sint32) SDL_SwapBE32(src[2]))) + ((Sint64) last_sample2)) >> 1);
5927  sample1 = (Sint32) ((((Sint64) ((Sint32) SDL_SwapBE32(src[1]))) + ((Sint64) last_sample1)) >> 1);
5928  sample0 = (Sint32) ((((Sint64) ((Sint32) SDL_SwapBE32(src[0]))) + ((Sint64) last_sample0)) >> 1);
5929  last_sample5 = sample5;
5930  last_sample4 = sample4;
5931  last_sample3 = sample3;
5932  last_sample2 = sample2;
5933  last_sample1 = sample1;
5934  last_sample0 = sample0;
5935  eps -= dstsize;
5936  }
5937  }
5938  cvt->len_cvt = dstsize;
5939  if (cvt->filters[++cvt->filter_index]) {
5940  cvt->filters[cvt->filter_index] (cvt, format);
5941  }
5942 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_SwapBE32
#define SDL_SwapBE32(X)
Definition: SDL_endian.h:216
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
SDL_AudioCVT::rate_incr
double rate_incr
Definition: SDL_audio.h:205
Sint64
int64_t Sint64
A signed 64-bit integer type.
Definition: SDL_stdinc.h:160
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Upsample_S32MSB_6c_x2 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 13523 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_SwapBE32, and SDLCALL.

13524 {
13525 #if DEBUG_CONVERT
13526  fprintf(stderr, "Upsample (x2) AUDIO_S32MSB, 6 channels.\n");
13527 #endif
13528 
13529  const int dstsize = cvt->len_cvt * 2;
13530  Sint32 *dst = ((Sint32 *) (cvt->buf + dstsize)) - 6 * 2;
13531  const Sint32 *src = ((Sint32 *) (cvt->buf + cvt->len_cvt)) - 6;
13532  const Sint32 *target = ((const Sint32 *) cvt->buf);
13533  Sint64 last_sample5 = (Sint64) ((Sint32) SDL_SwapBE32(src[5]));
13534  Sint64 last_sample4 = (Sint64) ((Sint32) SDL_SwapBE32(src[4]));
13535  Sint64 last_sample3 = (Sint64) ((Sint32) SDL_SwapBE32(src[3]));
13536  Sint64 last_sample2 = (Sint64) ((Sint32) SDL_SwapBE32(src[2]));
13537  Sint64 last_sample1 = (Sint64) ((Sint32) SDL_SwapBE32(src[1]));
13538  Sint64 last_sample0 = (Sint64) ((Sint32) SDL_SwapBE32(src[0]));
13539  while (dst >= target) {
13540  const Sint64 sample5 = (Sint64) ((Sint32) SDL_SwapBE32(src[5]));
13541  const Sint64 sample4 = (Sint64) ((Sint32) SDL_SwapBE32(src[4]));
13542  const Sint64 sample3 = (Sint64) ((Sint32) SDL_SwapBE32(src[3]));
13543  const Sint64 sample2 = (Sint64) ((Sint32) SDL_SwapBE32(src[2]));
13544  const Sint64 sample1 = (Sint64) ((Sint32) SDL_SwapBE32(src[1]));
13545  const Sint64 sample0 = (Sint64) ((Sint32) SDL_SwapBE32(src[0]));
13546  src -= 6;
13547  dst[11] = (Sint32) ((sample5 + last_sample5) >> 1);
13548  dst[10] = (Sint32) ((sample4 + last_sample4) >> 1);
13549  dst[9] = (Sint32) ((sample3 + last_sample3) >> 1);
13550  dst[8] = (Sint32) ((sample2 + last_sample2) >> 1);
13551  dst[7] = (Sint32) ((sample1 + last_sample1) >> 1);
13552  dst[6] = (Sint32) ((sample0 + last_sample0) >> 1);
13553  dst[5] = (Sint32) sample5;
13554  dst[4] = (Sint32) sample4;
13555  dst[3] = (Sint32) sample3;
13556  dst[2] = (Sint32) sample2;
13557  dst[1] = (Sint32) sample1;
13558  dst[0] = (Sint32) sample0;
13559  last_sample5 = sample5;
13560  last_sample4 = sample4;
13561  last_sample3 = sample3;
13562  last_sample2 = sample2;
13563  last_sample1 = sample1;
13564  last_sample0 = sample0;
13565  dst -= 12;
13566  }
13567 
13568  cvt->len_cvt = dstsize;
13569  if (cvt->filters[++cvt->filter_index]) {
13570  cvt->filters[cvt->filter_index] (cvt, format);
13571  }
13572 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_SwapBE32
#define SDL_SwapBE32(X)
Definition: SDL_endian.h:216
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
Sint64
int64_t Sint64
A signed 64-bit integer type.
Definition: SDL_stdinc.h:160
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Upsample_S32MSB_6c_x4 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 13621 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_SwapBE32, and SDLCALL.

13622 {
13623 #if DEBUG_CONVERT
13624  fprintf(stderr, "Upsample (x4) AUDIO_S32MSB, 6 channels.\n");
13625 #endif
13626 
13627  const int dstsize = cvt->len_cvt * 4;
13628  Sint32 *dst = ((Sint32 *) (cvt->buf + dstsize)) - 6 * 4;
13629  const Sint32 *src = ((Sint32 *) (cvt->buf + cvt->len_cvt)) - 6;
13630  const Sint32 *target = ((const Sint32 *) cvt->buf);
13631  Sint64 last_sample5 = (Sint64) ((Sint32) SDL_SwapBE32(src[5]));
13632  Sint64 last_sample4 = (Sint64) ((Sint32) SDL_SwapBE32(src[4]));
13633  Sint64 last_sample3 = (Sint64) ((Sint32) SDL_SwapBE32(src[3]));
13634  Sint64 last_sample2 = (Sint64) ((Sint32) SDL_SwapBE32(src[2]));
13635  Sint64 last_sample1 = (Sint64) ((Sint32) SDL_SwapBE32(src[1]));
13636  Sint64 last_sample0 = (Sint64) ((Sint32) SDL_SwapBE32(src[0]));
13637  while (dst >= target) {
13638  const Sint64 sample5 = (Sint64) ((Sint32) SDL_SwapBE32(src[5]));
13639  const Sint64 sample4 = (Sint64) ((Sint32) SDL_SwapBE32(src[4]));
13640  const Sint64 sample3 = (Sint64) ((Sint32) SDL_SwapBE32(src[3]));
13641  const Sint64 sample2 = (Sint64) ((Sint32) SDL_SwapBE32(src[2]));
13642  const Sint64 sample1 = (Sint64) ((Sint32) SDL_SwapBE32(src[1]));
13643  const Sint64 sample0 = (Sint64) ((Sint32) SDL_SwapBE32(src[0]));
13644  src -= 6;
13645  dst[23] = (Sint32) ((sample5 + (3 * last_sample5)) >> 2);
13646  dst[22] = (Sint32) ((sample4 + (3 * last_sample4)) >> 2);
13647  dst[21] = (Sint32) ((sample3 + (3 * last_sample3)) >> 2);
13648  dst[20] = (Sint32) ((sample2 + (3 * last_sample2)) >> 2);
13649  dst[19] = (Sint32) ((sample1 + (3 * last_sample1)) >> 2);
13650  dst[18] = (Sint32) ((sample0 + (3 * last_sample0)) >> 2);
13651  dst[17] = (Sint32) ((sample5 + last_sample5) >> 1);
13652  dst[16] = (Sint32) ((sample4 + last_sample4) >> 1);
13653  dst[15] = (Sint32) ((sample3 + last_sample3) >> 1);
13654  dst[14] = (Sint32) ((sample2 + last_sample2) >> 1);
13655  dst[13] = (Sint32) ((sample1 + last_sample1) >> 1);
13656  dst[12] = (Sint32) ((sample0 + last_sample0) >> 1);
13657  dst[11] = (Sint32) (((3 * sample5) + last_sample5) >> 2);
13658  dst[10] = (Sint32) (((3 * sample4) + last_sample4) >> 2);
13659  dst[9] = (Sint32) (((3 * sample3) + last_sample3) >> 2);
13660  dst[8] = (Sint32) (((3 * sample2) + last_sample2) >> 2);
13661  dst[7] = (Sint32) (((3 * sample1) + last_sample1) >> 2);
13662  dst[6] = (Sint32) (((3 * sample0) + last_sample0) >> 2);
13663  dst[5] = (Sint32) sample5;
13664  dst[4] = (Sint32) sample4;
13665  dst[3] = (Sint32) sample3;
13666  dst[2] = (Sint32) sample2;
13667  dst[1] = (Sint32) sample1;
13668  dst[0] = (Sint32) sample0;
13669  last_sample5 = sample5;
13670  last_sample4 = sample4;
13671  last_sample3 = sample3;
13672  last_sample2 = sample2;
13673  last_sample1 = sample1;
13674  last_sample0 = sample0;
13675  dst -= 24;
13676  }
13677 
13678  cvt->len_cvt = dstsize;
13679  if (cvt->filters[++cvt->filter_index]) {
13680  cvt->filters[cvt->filter_index] (cvt, format);
13681  }
13682 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_SwapBE32
#define SDL_SwapBE32(X)
Definition: SDL_endian.h:216
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
Sint64
int64_t Sint64
A signed 64-bit integer type.
Definition: SDL_stdinc.h:160
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Upsample_S32MSB_8c ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 6002 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_AudioCVT::rate_incr, SDL_SwapBE32, and SDLCALL.

6003 {
6004 #if DEBUG_CONVERT
6005  fprintf(stderr, "Upsample arbitrary (x%f) AUDIO_S32MSB, 8 channels.\n", cvt->rate_incr);
6006 #endif
6007 
6008  const int srcsize = cvt->len_cvt - 512;
6009  const int dstsize = (int) (((double)(cvt->len_cvt/32)) * cvt->rate_incr) * 32;
6010  register int eps = 0;
6011  Sint32 *dst = ((Sint32 *) (cvt->buf + dstsize)) - 8;
6012  const Sint32 *src = ((Sint32 *) (cvt->buf + cvt->len_cvt)) - 8;
6013  const Sint32 *target = ((const Sint32 *) cvt->buf);
6014  Sint32 sample7 = ((Sint32) SDL_SwapBE32(src[7]));
6015  Sint32 sample6 = ((Sint32) SDL_SwapBE32(src[6]));
6016  Sint32 sample5 = ((Sint32) SDL_SwapBE32(src[5]));
6017  Sint32 sample4 = ((Sint32) SDL_SwapBE32(src[4]));
6018  Sint32 sample3 = ((Sint32) SDL_SwapBE32(src[3]));
6019  Sint32 sample2 = ((Sint32) SDL_SwapBE32(src[2]));
6020  Sint32 sample1 = ((Sint32) SDL_SwapBE32(src[1]));
6021  Sint32 sample0 = ((Sint32) SDL_SwapBE32(src[0]));
6022  Sint32 last_sample7 = sample7;
6023  Sint32 last_sample6 = sample6;
6024  Sint32 last_sample5 = sample5;
6025  Sint32 last_sample4 = sample4;
6026  Sint32 last_sample3 = sample3;
6027  Sint32 last_sample2 = sample2;
6028  Sint32 last_sample1 = sample1;
6029  Sint32 last_sample0 = sample0;
6030  while (dst >= target) {
6031  dst[7] = ((Sint32) SDL_SwapBE32(sample7));
6032  dst[6] = ((Sint32) SDL_SwapBE32(sample6));
6033  dst[5] = ((Sint32) SDL_SwapBE32(sample5));
6034  dst[4] = ((Sint32) SDL_SwapBE32(sample4));
6035  dst[3] = ((Sint32) SDL_SwapBE32(sample3));
6036  dst[2] = ((Sint32) SDL_SwapBE32(sample2));
6037  dst[1] = ((Sint32) SDL_SwapBE32(sample1));
6038  dst[0] = ((Sint32) SDL_SwapBE32(sample0));
6039  dst -= 8;
6040  eps += srcsize;
6041  if ((eps << 1) >= dstsize) {
6042  src -= 8;
6043  sample7 = (Sint32) ((((Sint64) ((Sint32) SDL_SwapBE32(src[7]))) + ((Sint64) last_sample7)) >> 1);
6044  sample6 = (Sint32) ((((Sint64) ((Sint32) SDL_SwapBE32(src[6]))) + ((Sint64) last_sample6)) >> 1);
6045  sample5 = (Sint32) ((((Sint64) ((Sint32) SDL_SwapBE32(src[5]))) + ((Sint64) last_sample5)) >> 1);
6046  sample4 = (Sint32) ((((Sint64) ((Sint32) SDL_SwapBE32(src[4]))) + ((Sint64) last_sample4)) >> 1);
6047  sample3 = (Sint32) ((((Sint64) ((Sint32) SDL_SwapBE32(src[3]))) + ((Sint64) last_sample3)) >> 1);
6048  sample2 = (Sint32) ((((Sint64) ((Sint32) SDL_SwapBE32(src[2]))) + ((Sint64) last_sample2)) >> 1);
6049  sample1 = (Sint32) ((((Sint64) ((Sint32) SDL_SwapBE32(src[1]))) + ((Sint64) last_sample1)) >> 1);
6050  sample0 = (Sint32) ((((Sint64) ((Sint32) SDL_SwapBE32(src[0]))) + ((Sint64) last_sample0)) >> 1);
6051  last_sample7 = sample7;
6052  last_sample6 = sample6;
6053  last_sample5 = sample5;
6054  last_sample4 = sample4;
6055  last_sample3 = sample3;
6056  last_sample2 = sample2;
6057  last_sample1 = sample1;
6058  last_sample0 = sample0;
6059  eps -= dstsize;
6060  }
6061  }
6062  cvt->len_cvt = dstsize;
6063  if (cvt->filters[++cvt->filter_index]) {
6064  cvt->filters[cvt->filter_index] (cvt, format);
6065  }
6066 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_SwapBE32
#define SDL_SwapBE32(X)
Definition: SDL_endian.h:216
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
SDL_AudioCVT::rate_incr
double rate_incr
Definition: SDL_audio.h:205
Sint64
int64_t Sint64
A signed 64-bit integer type.
Definition: SDL_stdinc.h:160
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Upsample_S32MSB_8c_x2 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 13731 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_SwapBE32, and SDLCALL.

13732 {
13733 #if DEBUG_CONVERT
13734  fprintf(stderr, "Upsample (x2) AUDIO_S32MSB, 8 channels.\n");
13735 #endif
13736 
13737  const int dstsize = cvt->len_cvt * 2;
13738  Sint32 *dst = ((Sint32 *) (cvt->buf + dstsize)) - 8 * 2;
13739  const Sint32 *src = ((Sint32 *) (cvt->buf + cvt->len_cvt)) - 8;
13740  const Sint32 *target = ((const Sint32 *) cvt->buf);
13741  Sint64 last_sample7 = (Sint64) ((Sint32) SDL_SwapBE32(src[7]));
13742  Sint64 last_sample6 = (Sint64) ((Sint32) SDL_SwapBE32(src[6]));
13743  Sint64 last_sample5 = (Sint64) ((Sint32) SDL_SwapBE32(src[5]));
13744  Sint64 last_sample4 = (Sint64) ((Sint32) SDL_SwapBE32(src[4]));
13745  Sint64 last_sample3 = (Sint64) ((Sint32) SDL_SwapBE32(src[3]));
13746  Sint64 last_sample2 = (Sint64) ((Sint32) SDL_SwapBE32(src[2]));
13747  Sint64 last_sample1 = (Sint64) ((Sint32) SDL_SwapBE32(src[1]));
13748  Sint64 last_sample0 = (Sint64) ((Sint32) SDL_SwapBE32(src[0]));
13749  while (dst >= target) {
13750  const Sint64 sample7 = (Sint64) ((Sint32) SDL_SwapBE32(src[7]));
13751  const Sint64 sample6 = (Sint64) ((Sint32) SDL_SwapBE32(src[6]));
13752  const Sint64 sample5 = (Sint64) ((Sint32) SDL_SwapBE32(src[5]));
13753  const Sint64 sample4 = (Sint64) ((Sint32) SDL_SwapBE32(src[4]));
13754  const Sint64 sample3 = (Sint64) ((Sint32) SDL_SwapBE32(src[3]));
13755  const Sint64 sample2 = (Sint64) ((Sint32) SDL_SwapBE32(src[2]));
13756  const Sint64 sample1 = (Sint64) ((Sint32) SDL_SwapBE32(src[1]));
13757  const Sint64 sample0 = (Sint64) ((Sint32) SDL_SwapBE32(src[0]));
13758  src -= 8;
13759  dst[15] = (Sint32) ((sample7 + last_sample7) >> 1);
13760  dst[14] = (Sint32) ((sample6 + last_sample6) >> 1);
13761  dst[13] = (Sint32) ((sample5 + last_sample5) >> 1);
13762  dst[12] = (Sint32) ((sample4 + last_sample4) >> 1);
13763  dst[11] = (Sint32) ((sample3 + last_sample3) >> 1);
13764  dst[10] = (Sint32) ((sample2 + last_sample2) >> 1);
13765  dst[9] = (Sint32) ((sample1 + last_sample1) >> 1);
13766  dst[8] = (Sint32) ((sample0 + last_sample0) >> 1);
13767  dst[7] = (Sint32) sample7;
13768  dst[6] = (Sint32) sample6;
13769  dst[5] = (Sint32) sample5;
13770  dst[4] = (Sint32) sample4;
13771  dst[3] = (Sint32) sample3;
13772  dst[2] = (Sint32) sample2;
13773  dst[1] = (Sint32) sample1;
13774  dst[0] = (Sint32) sample0;
13775  last_sample7 = sample7;
13776  last_sample6 = sample6;
13777  last_sample5 = sample5;
13778  last_sample4 = sample4;
13779  last_sample3 = sample3;
13780  last_sample2 = sample2;
13781  last_sample1 = sample1;
13782  last_sample0 = sample0;
13783  dst -= 16;
13784  }
13785 
13786  cvt->len_cvt = dstsize;
13787  if (cvt->filters[++cvt->filter_index]) {
13788  cvt->filters[cvt->filter_index] (cvt, format);
13789  }
13790 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_SwapBE32
#define SDL_SwapBE32(X)
Definition: SDL_endian.h:216
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
Sint64
int64_t Sint64
A signed 64-bit integer type.
Definition: SDL_stdinc.h:160
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Upsample_S32MSB_8c_x4 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 13847 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_SwapBE32, and SDLCALL.

13848 {
13849 #if DEBUG_CONVERT
13850  fprintf(stderr, "Upsample (x4) AUDIO_S32MSB, 8 channels.\n");
13851 #endif
13852 
13853  const int dstsize = cvt->len_cvt * 4;
13854  Sint32 *dst = ((Sint32 *) (cvt->buf + dstsize)) - 8 * 4;
13855  const Sint32 *src = ((Sint32 *) (cvt->buf + cvt->len_cvt)) - 8;
13856  const Sint32 *target = ((const Sint32 *) cvt->buf);
13857  Sint64 last_sample7 = (Sint64) ((Sint32) SDL_SwapBE32(src[7]));
13858  Sint64 last_sample6 = (Sint64) ((Sint32) SDL_SwapBE32(src[6]));
13859  Sint64 last_sample5 = (Sint64) ((Sint32) SDL_SwapBE32(src[5]));
13860  Sint64 last_sample4 = (Sint64) ((Sint32) SDL_SwapBE32(src[4]));
13861  Sint64 last_sample3 = (Sint64) ((Sint32) SDL_SwapBE32(src[3]));
13862  Sint64 last_sample2 = (Sint64) ((Sint32) SDL_SwapBE32(src[2]));
13863  Sint64 last_sample1 = (Sint64) ((Sint32) SDL_SwapBE32(src[1]));
13864  Sint64 last_sample0 = (Sint64) ((Sint32) SDL_SwapBE32(src[0]));
13865  while (dst >= target) {
13866  const Sint64 sample7 = (Sint64) ((Sint32) SDL_SwapBE32(src[7]));
13867  const Sint64 sample6 = (Sint64) ((Sint32) SDL_SwapBE32(src[6]));
13868  const Sint64 sample5 = (Sint64) ((Sint32) SDL_SwapBE32(src[5]));
13869  const Sint64 sample4 = (Sint64) ((Sint32) SDL_SwapBE32(src[4]));
13870  const Sint64 sample3 = (Sint64) ((Sint32) SDL_SwapBE32(src[3]));
13871  const Sint64 sample2 = (Sint64) ((Sint32) SDL_SwapBE32(src[2]));
13872  const Sint64 sample1 = (Sint64) ((Sint32) SDL_SwapBE32(src[1]));
13873  const Sint64 sample0 = (Sint64) ((Sint32) SDL_SwapBE32(src[0]));
13874  src -= 8;
13875  dst[31] = (Sint32) ((sample7 + (3 * last_sample7)) >> 2);
13876  dst[30] = (Sint32) ((sample6 + (3 * last_sample6)) >> 2);
13877  dst[29] = (Sint32) ((sample5 + (3 * last_sample5)) >> 2);
13878  dst[28] = (Sint32) ((sample4 + (3 * last_sample4)) >> 2);
13879  dst[27] = (Sint32) ((sample3 + (3 * last_sample3)) >> 2);
13880  dst[26] = (Sint32) ((sample2 + (3 * last_sample2)) >> 2);
13881  dst[25] = (Sint32) ((sample1 + (3 * last_sample1)) >> 2);
13882  dst[24] = (Sint32) ((sample0 + (3 * last_sample0)) >> 2);
13883  dst[23] = (Sint32) ((sample7 + last_sample7) >> 1);
13884  dst[22] = (Sint32) ((sample6 + last_sample6) >> 1);
13885  dst[21] = (Sint32) ((sample5 + last_sample5) >> 1);
13886  dst[20] = (Sint32) ((sample4 + last_sample4) >> 1);
13887  dst[19] = (Sint32) ((sample3 + last_sample3) >> 1);
13888  dst[18] = (Sint32) ((sample2 + last_sample2) >> 1);
13889  dst[17] = (Sint32) ((sample1 + last_sample1) >> 1);
13890  dst[16] = (Sint32) ((sample0 + last_sample0) >> 1);
13891  dst[15] = (Sint32) (((3 * sample7) + last_sample7) >> 2);
13892  dst[14] = (Sint32) (((3 * sample6) + last_sample6) >> 2);
13893  dst[13] = (Sint32) (((3 * sample5) + last_sample5) >> 2);
13894  dst[12] = (Sint32) (((3 * sample4) + last_sample4) >> 2);
13895  dst[11] = (Sint32) (((3 * sample3) + last_sample3) >> 2);
13896  dst[10] = (Sint32) (((3 * sample2) + last_sample2) >> 2);
13897  dst[9] = (Sint32) (((3 * sample1) + last_sample1) >> 2);
13898  dst[8] = (Sint32) (((3 * sample0) + last_sample0) >> 2);
13899  dst[7] = (Sint32) sample7;
13900  dst[6] = (Sint32) sample6;
13901  dst[5] = (Sint32) sample5;
13902  dst[4] = (Sint32) sample4;
13903  dst[3] = (Sint32) sample3;
13904  dst[2] = (Sint32) sample2;
13905  dst[1] = (Sint32) sample1;
13906  dst[0] = (Sint32) sample0;
13907  last_sample7 = sample7;
13908  last_sample6 = sample6;
13909  last_sample5 = sample5;
13910  last_sample4 = sample4;
13911  last_sample3 = sample3;
13912  last_sample2 = sample2;
13913  last_sample1 = sample1;
13914  last_sample0 = sample0;
13915  dst -= 32;
13916  }
13917 
13918  cvt->len_cvt = dstsize;
13919  if (cvt->filters[++cvt->filter_index]) {
13920  cvt->filters[cvt->filter_index] (cvt, format);
13921  }
13922 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_SwapBE32
#define SDL_SwapBE32(X)
Definition: SDL_endian.h:216
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
Sint64
int64_t Sint64
A signed 64-bit integer type.
Definition: SDL_stdinc.h:160
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Upsample_S8_1c ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 2776 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_AudioCVT::rate_incr, and SDLCALL.

2777 {
2778 #if DEBUG_CONVERT
2779  fprintf(stderr, "Upsample arbitrary (x%f) AUDIO_S8, 1 channels.\n", cvt->rate_incr);
2780 #endif
2781 
2782  const int srcsize = cvt->len_cvt - 16;
2783  const int dstsize = (int) (((double)(cvt->len_cvt/1)) * cvt->rate_incr) * 1;
2784  register int eps = 0;
2785  Sint8 *dst = ((Sint8 *) (cvt->buf + dstsize)) - 1;
2786  const Sint8 *src = ((Sint8 *) (cvt->buf + cvt->len_cvt)) - 1;
2787  const Sint8 *target = ((const Sint8 *) cvt->buf);
2788  Sint8 sample0 = ((Sint8) src[0]);
2789  Sint8 last_sample0 = sample0;
2790  while (dst >= target) {
2791  dst[0] = ((Sint8) sample0);
2792  dst--;
2793  eps += srcsize;
2794  if ((eps << 1) >= dstsize) {
2795  src--;
2796  sample0 = (Sint8) ((((Sint16) ((Sint8) src[0])) + ((Sint16) last_sample0)) >> 1);
2797  last_sample0 = sample0;
2798  eps -= dstsize;
2799  }
2800  }
2801  cvt->len_cvt = dstsize;
2802  if (cvt->filters[++cvt->filter_index]) {
2803  cvt->filters[cvt->filter_index] (cvt, format);
2804  }
2805 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
Sint8
int8_t Sint8
A signed 8-bit integer type.
Definition: SDL_stdinc.h:135
target
GLenum target
Definition: SDL_opengl_glext.h:1551
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
SDL_AudioCVT::rate_incr
double rate_incr
Definition: SDL_audio.h:205
src
GLenum src
Definition: SDL_opengl_glext.h:1737
Sint16
int16_t Sint16
A signed 16-bit integer type.
Definition: SDL_stdinc.h:143
static void SDL_Upsample_S8_1c_x2 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 7959 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, and SDLCALL.

7960 {
7961 #if DEBUG_CONVERT
7962  fprintf(stderr, "Upsample (x2) AUDIO_S8, 1 channels.\n");
7963 #endif
7964 
7965  const int dstsize = cvt->len_cvt * 2;
7966  Sint8 *dst = ((Sint8 *) (cvt->buf + dstsize)) - 1 * 2;
7967  const Sint8 *src = ((Sint8 *) (cvt->buf + cvt->len_cvt)) - 1;
7968  const Sint8 *target = ((const Sint8 *) cvt->buf);
7969  Sint16 last_sample0 = (Sint16) ((Sint8) src[0]);
7970  while (dst >= target) {
7971  const Sint16 sample0 = (Sint16) ((Sint8) src[0]);
7972  src--;
7973  dst[1] = (Sint8) ((sample0 + last_sample0) >> 1);
7974  dst[0] = (Sint8) sample0;
7975  last_sample0 = sample0;
7976  dst -= 2;
7977  }
7978 
7979  cvt->len_cvt = dstsize;
7980  if (cvt->filters[++cvt->filter_index]) {
7981  cvt->filters[cvt->filter_index] (cvt, format);
7982  }
7983 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
Sint8
int8_t Sint8
A signed 8-bit integer type.
Definition: SDL_stdinc.h:135
target
GLenum target
Definition: SDL_opengl_glext.h:1551
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
src
GLenum src
Definition: SDL_opengl_glext.h:1737
Sint16
int16_t Sint16
A signed 16-bit integer type.
Definition: SDL_stdinc.h:143
static void SDL_Upsample_S8_1c_x4 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 8012 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, and SDLCALL.

8013 {
8014 #if DEBUG_CONVERT
8015  fprintf(stderr, "Upsample (x4) AUDIO_S8, 1 channels.\n");
8016 #endif
8017 
8018  const int dstsize = cvt->len_cvt * 4;
8019  Sint8 *dst = ((Sint8 *) (cvt->buf + dstsize)) - 1 * 4;
8020  const Sint8 *src = ((Sint8 *) (cvt->buf + cvt->len_cvt)) - 1;
8021  const Sint8 *target = ((const Sint8 *) cvt->buf);
8022  Sint16 last_sample0 = (Sint16) ((Sint8) src[0]);
8023  while (dst >= target) {
8024  const Sint16 sample0 = (Sint16) ((Sint8) src[0]);
8025  src--;
8026  dst[3] = (Sint8) ((sample0 + (3 * last_sample0)) >> 2);
8027  dst[2] = (Sint8) ((sample0 + last_sample0) >> 1);
8028  dst[1] = (Sint8) (((3 * sample0) + last_sample0) >> 2);
8029  dst[0] = (Sint8) sample0;
8030  last_sample0 = sample0;
8031  dst -= 4;
8032  }
8033 
8034  cvt->len_cvt = dstsize;
8035  if (cvt->filters[++cvt->filter_index]) {
8036  cvt->filters[cvt->filter_index] (cvt, format);
8037  }
8038 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
Sint8
int8_t Sint8
A signed 8-bit integer type.
Definition: SDL_stdinc.h:135
target
GLenum target
Definition: SDL_opengl_glext.h:1551
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
src
GLenum src
Definition: SDL_opengl_glext.h:1737
Sint16
int16_t Sint16
A signed 16-bit integer type.
Definition: SDL_stdinc.h:143
static void SDL_Upsample_S8_2c ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 2840 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_AudioCVT::rate_incr, and SDLCALL.

2841 {
2842 #if DEBUG_CONVERT
2843  fprintf(stderr, "Upsample arbitrary (x%f) AUDIO_S8, 2 channels.\n", cvt->rate_incr);
2844 #endif
2845 
2846  const int srcsize = cvt->len_cvt - 32;
2847  const int dstsize = (int) (((double)(cvt->len_cvt/2)) * cvt->rate_incr) * 2;
2848  register int eps = 0;
2849  Sint8 *dst = ((Sint8 *) (cvt->buf + dstsize)) - 2;
2850  const Sint8 *src = ((Sint8 *) (cvt->buf + cvt->len_cvt)) - 2;
2851  const Sint8 *target = ((const Sint8 *) cvt->buf);
2852  Sint8 sample1 = ((Sint8) src[1]);
2853  Sint8 sample0 = ((Sint8) src[0]);
2854  Sint8 last_sample1 = sample1;
2855  Sint8 last_sample0 = sample0;
2856  while (dst >= target) {
2857  dst[1] = ((Sint8) sample1);
2858  dst[0] = ((Sint8) sample0);
2859  dst -= 2;
2860  eps += srcsize;
2861  if ((eps << 1) >= dstsize) {
2862  src -= 2;
2863  sample1 = (Sint8) ((((Sint16) ((Sint8) src[1])) + ((Sint16) last_sample1)) >> 1);
2864  sample0 = (Sint8) ((((Sint16) ((Sint8) src[0])) + ((Sint16) last_sample0)) >> 1);
2865  last_sample1 = sample1;
2866  last_sample0 = sample0;
2867  eps -= dstsize;
2868  }
2869  }
2870  cvt->len_cvt = dstsize;
2871  if (cvt->filters[++cvt->filter_index]) {
2872  cvt->filters[cvt->filter_index] (cvt, format);
2873  }
2874 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
Sint8
int8_t Sint8
A signed 8-bit integer type.
Definition: SDL_stdinc.h:135
target
GLenum target
Definition: SDL_opengl_glext.h:1551
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
SDL_AudioCVT::rate_incr
double rate_incr
Definition: SDL_audio.h:205
src
GLenum src
Definition: SDL_opengl_glext.h:1737
Sint16
int16_t Sint16
A signed 16-bit integer type.
Definition: SDL_stdinc.h:143
static void SDL_Upsample_S8_2c_x2 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 8067 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, and SDLCALL.

8068 {
8069 #if DEBUG_CONVERT
8070  fprintf(stderr, "Upsample (x2) AUDIO_S8, 2 channels.\n");
8071 #endif
8072 
8073  const int dstsize = cvt->len_cvt * 2;
8074  Sint8 *dst = ((Sint8 *) (cvt->buf + dstsize)) - 2 * 2;
8075  const Sint8 *src = ((Sint8 *) (cvt->buf + cvt->len_cvt)) - 2;
8076  const Sint8 *target = ((const Sint8 *) cvt->buf);
8077  Sint16 last_sample1 = (Sint16) ((Sint8) src[1]);
8078  Sint16 last_sample0 = (Sint16) ((Sint8) src[0]);
8079  while (dst >= target) {
8080  const Sint16 sample1 = (Sint16) ((Sint8) src[1]);
8081  const Sint16 sample0 = (Sint16) ((Sint8) src[0]);
8082  src -= 2;
8083  dst[3] = (Sint8) ((sample1 + last_sample1) >> 1);
8084  dst[2] = (Sint8) ((sample0 + last_sample0) >> 1);
8085  dst[1] = (Sint8) sample1;
8086  dst[0] = (Sint8) sample0;
8087  last_sample1 = sample1;
8088  last_sample0 = sample0;
8089  dst -= 4;
8090  }
8091 
8092  cvt->len_cvt = dstsize;
8093  if (cvt->filters[++cvt->filter_index]) {
8094  cvt->filters[cvt->filter_index] (cvt, format);
8095  }
8096 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
Sint8
int8_t Sint8
A signed 8-bit integer type.
Definition: SDL_stdinc.h:135
target
GLenum target
Definition: SDL_opengl_glext.h:1551
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
src
GLenum src
Definition: SDL_opengl_glext.h:1737
Sint16
int16_t Sint16
A signed 16-bit integer type.
Definition: SDL_stdinc.h:143
static void SDL_Upsample_S8_2c_x4 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 8129 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, and SDLCALL.

8130 {
8131 #if DEBUG_CONVERT
8132  fprintf(stderr, "Upsample (x4) AUDIO_S8, 2 channels.\n");
8133 #endif
8134 
8135  const int dstsize = cvt->len_cvt * 4;
8136  Sint8 *dst = ((Sint8 *) (cvt->buf + dstsize)) - 2 * 4;
8137  const Sint8 *src = ((Sint8 *) (cvt->buf + cvt->len_cvt)) - 2;
8138  const Sint8 *target = ((const Sint8 *) cvt->buf);
8139  Sint16 last_sample1 = (Sint16) ((Sint8) src[1]);
8140  Sint16 last_sample0 = (Sint16) ((Sint8) src[0]);
8141  while (dst >= target) {
8142  const Sint16 sample1 = (Sint16) ((Sint8) src[1]);
8143  const Sint16 sample0 = (Sint16) ((Sint8) src[0]);
8144  src -= 2;
8145  dst[7] = (Sint8) ((sample1 + (3 * last_sample1)) >> 2);
8146  dst[6] = (Sint8) ((sample0 + (3 * last_sample0)) >> 2);
8147  dst[5] = (Sint8) ((sample1 + last_sample1) >> 1);
8148  dst[4] = (Sint8) ((sample0 + last_sample0) >> 1);
8149  dst[3] = (Sint8) (((3 * sample1) + last_sample1) >> 2);
8150  dst[2] = (Sint8) (((3 * sample0) + last_sample0) >> 2);
8151  dst[1] = (Sint8) sample1;
8152  dst[0] = (Sint8) sample0;
8153  last_sample1 = sample1;
8154  last_sample0 = sample0;
8155  dst -= 8;
8156  }
8157 
8158  cvt->len_cvt = dstsize;
8159  if (cvt->filters[++cvt->filter_index]) {
8160  cvt->filters[cvt->filter_index] (cvt, format);
8161  }
8162 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
Sint8
int8_t Sint8
A signed 8-bit integer type.
Definition: SDL_stdinc.h:135
target
GLenum target
Definition: SDL_opengl_glext.h:1551
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
src
GLenum src
Definition: SDL_opengl_glext.h:1737
Sint16
int16_t Sint16
A signed 16-bit integer type.
Definition: SDL_stdinc.h:143
static void SDL_Upsample_S8_4c ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 2914 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_AudioCVT::rate_incr, and SDLCALL.

2915 {
2916 #if DEBUG_CONVERT
2917  fprintf(stderr, "Upsample arbitrary (x%f) AUDIO_S8, 4 channels.\n", cvt->rate_incr);
2918 #endif
2919 
2920  const int srcsize = cvt->len_cvt - 64;
2921  const int dstsize = (int) (((double)(cvt->len_cvt/4)) * cvt->rate_incr) * 4;
2922  register int eps = 0;
2923  Sint8 *dst = ((Sint8 *) (cvt->buf + dstsize)) - 4;
2924  const Sint8 *src = ((Sint8 *) (cvt->buf + cvt->len_cvt)) - 4;
2925  const Sint8 *target = ((const Sint8 *) cvt->buf);
2926  Sint8 sample3 = ((Sint8) src[3]);
2927  Sint8 sample2 = ((Sint8) src[2]);
2928  Sint8 sample1 = ((Sint8) src[1]);
2929  Sint8 sample0 = ((Sint8) src[0]);
2930  Sint8 last_sample3 = sample3;
2931  Sint8 last_sample2 = sample2;
2932  Sint8 last_sample1 = sample1;
2933  Sint8 last_sample0 = sample0;
2934  while (dst >= target) {
2935  dst[3] = ((Sint8) sample3);
2936  dst[2] = ((Sint8) sample2);
2937  dst[1] = ((Sint8) sample1);
2938  dst[0] = ((Sint8) sample0);
2939  dst -= 4;
2940  eps += srcsize;
2941  if ((eps << 1) >= dstsize) {
2942  src -= 4;
2943  sample3 = (Sint8) ((((Sint16) ((Sint8) src[3])) + ((Sint16) last_sample3)) >> 1);
2944  sample2 = (Sint8) ((((Sint16) ((Sint8) src[2])) + ((Sint16) last_sample2)) >> 1);
2945  sample1 = (Sint8) ((((Sint16) ((Sint8) src[1])) + ((Sint16) last_sample1)) >> 1);
2946  sample0 = (Sint8) ((((Sint16) ((Sint8) src[0])) + ((Sint16) last_sample0)) >> 1);
2947  last_sample3 = sample3;
2948  last_sample2 = sample2;
2949  last_sample1 = sample1;
2950  last_sample0 = sample0;
2951  eps -= dstsize;
2952  }
2953  }
2954  cvt->len_cvt = dstsize;
2955  if (cvt->filters[++cvt->filter_index]) {
2956  cvt->filters[cvt->filter_index] (cvt, format);
2957  }
2958 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
Sint8
int8_t Sint8
A signed 8-bit integer type.
Definition: SDL_stdinc.h:135
target
GLenum target
Definition: SDL_opengl_glext.h:1551
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
SDL_AudioCVT::rate_incr
double rate_incr
Definition: SDL_audio.h:205
src
GLenum src
Definition: SDL_opengl_glext.h:1737
Sint16
int16_t Sint16
A signed 16-bit integer type.
Definition: SDL_stdinc.h:143
static void SDL_Upsample_S8_4c_x2 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 8195 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, and SDLCALL.

8196 {
8197 #if DEBUG_CONVERT
8198  fprintf(stderr, "Upsample (x2) AUDIO_S8, 4 channels.\n");
8199 #endif
8200 
8201  const int dstsize = cvt->len_cvt * 2;
8202  Sint8 *dst = ((Sint8 *) (cvt->buf + dstsize)) - 4 * 2;
8203  const Sint8 *src = ((Sint8 *) (cvt->buf + cvt->len_cvt)) - 4;
8204  const Sint8 *target = ((const Sint8 *) cvt->buf);
8205  Sint16 last_sample3 = (Sint16) ((Sint8) src[3]);
8206  Sint16 last_sample2 = (Sint16) ((Sint8) src[2]);
8207  Sint16 last_sample1 = (Sint16) ((Sint8) src[1]);
8208  Sint16 last_sample0 = (Sint16) ((Sint8) src[0]);
8209  while (dst >= target) {
8210  const Sint16 sample3 = (Sint16) ((Sint8) src[3]);
8211  const Sint16 sample2 = (Sint16) ((Sint8) src[2]);
8212  const Sint16 sample1 = (Sint16) ((Sint8) src[1]);
8213  const Sint16 sample0 = (Sint16) ((Sint8) src[0]);
8214  src -= 4;
8215  dst[7] = (Sint8) ((sample3 + last_sample3) >> 1);
8216  dst[6] = (Sint8) ((sample2 + last_sample2) >> 1);
8217  dst[5] = (Sint8) ((sample1 + last_sample1) >> 1);
8218  dst[4] = (Sint8) ((sample0 + last_sample0) >> 1);
8219  dst[3] = (Sint8) sample3;
8220  dst[2] = (Sint8) sample2;
8221  dst[1] = (Sint8) sample1;
8222  dst[0] = (Sint8) sample0;
8223  last_sample3 = sample3;
8224  last_sample2 = sample2;
8225  last_sample1 = sample1;
8226  last_sample0 = sample0;
8227  dst -= 8;
8228  }
8229 
8230  cvt->len_cvt = dstsize;
8231  if (cvt->filters[++cvt->filter_index]) {
8232  cvt->filters[cvt->filter_index] (cvt, format);
8233  }
8234 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
Sint8
int8_t Sint8
A signed 8-bit integer type.
Definition: SDL_stdinc.h:135
target
GLenum target
Definition: SDL_opengl_glext.h:1551
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
src
GLenum src
Definition: SDL_opengl_glext.h:1737
Sint16
int16_t Sint16
A signed 16-bit integer type.
Definition: SDL_stdinc.h:143
static void SDL_Upsample_S8_4c_x4 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 8275 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, and SDLCALL.

8276 {
8277 #if DEBUG_CONVERT
8278  fprintf(stderr, "Upsample (x4) AUDIO_S8, 4 channels.\n");
8279 #endif
8280 
8281  const int dstsize = cvt->len_cvt * 4;
8282  Sint8 *dst = ((Sint8 *) (cvt->buf + dstsize)) - 4 * 4;
8283  const Sint8 *src = ((Sint8 *) (cvt->buf + cvt->len_cvt)) - 4;
8284  const Sint8 *target = ((const Sint8 *) cvt->buf);
8285  Sint16 last_sample3 = (Sint16) ((Sint8) src[3]);
8286  Sint16 last_sample2 = (Sint16) ((Sint8) src[2]);
8287  Sint16 last_sample1 = (Sint16) ((Sint8) src[1]);
8288  Sint16 last_sample0 = (Sint16) ((Sint8) src[0]);
8289  while (dst >= target) {
8290  const Sint16 sample3 = (Sint16) ((Sint8) src[3]);
8291  const Sint16 sample2 = (Sint16) ((Sint8) src[2]);
8292  const Sint16 sample1 = (Sint16) ((Sint8) src[1]);
8293  const Sint16 sample0 = (Sint16) ((Sint8) src[0]);
8294  src -= 4;
8295  dst[15] = (Sint8) ((sample3 + (3 * last_sample3)) >> 2);
8296  dst[14] = (Sint8) ((sample2 + (3 * last_sample2)) >> 2);
8297  dst[13] = (Sint8) ((sample1 + (3 * last_sample1)) >> 2);
8298  dst[12] = (Sint8) ((sample0 + (3 * last_sample0)) >> 2);
8299  dst[11] = (Sint8) ((sample3 + last_sample3) >> 1);
8300  dst[10] = (Sint8) ((sample2 + last_sample2) >> 1);
8301  dst[9] = (Sint8) ((sample1 + last_sample1) >> 1);
8302  dst[8] = (Sint8) ((sample0 + last_sample0) >> 1);
8303  dst[7] = (Sint8) (((3 * sample3) + last_sample3) >> 2);
8304  dst[6] = (Sint8) (((3 * sample2) + last_sample2) >> 2);
8305  dst[5] = (Sint8) (((3 * sample1) + last_sample1) >> 2);
8306  dst[4] = (Sint8) (((3 * sample0) + last_sample0) >> 2);
8307  dst[3] = (Sint8) sample3;
8308  dst[2] = (Sint8) sample2;
8309  dst[1] = (Sint8) sample1;
8310  dst[0] = (Sint8) sample0;
8311  last_sample3 = sample3;
8312  last_sample2 = sample2;
8313  last_sample1 = sample1;
8314  last_sample0 = sample0;
8315  dst -= 16;
8316  }
8317 
8318  cvt->len_cvt = dstsize;
8319  if (cvt->filters[++cvt->filter_index]) {
8320  cvt->filters[cvt->filter_index] (cvt, format);
8321  }
8322 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
Sint8
int8_t Sint8
A signed 8-bit integer type.
Definition: SDL_stdinc.h:135
target
GLenum target
Definition: SDL_opengl_glext.h:1551
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
src
GLenum src
Definition: SDL_opengl_glext.h:1737
Sint16
int16_t Sint16
A signed 16-bit integer type.
Definition: SDL_stdinc.h:143
static void SDL_Upsample_S8_6c ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 3008 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_AudioCVT::rate_incr, and SDLCALL.

3009 {
3010 #if DEBUG_CONVERT
3011  fprintf(stderr, "Upsample arbitrary (x%f) AUDIO_S8, 6 channels.\n", cvt->rate_incr);
3012 #endif
3013 
3014  const int srcsize = cvt->len_cvt - 96;
3015  const int dstsize = (int) (((double)(cvt->len_cvt/6)) * cvt->rate_incr) * 6;
3016  register int eps = 0;
3017  Sint8 *dst = ((Sint8 *) (cvt->buf + dstsize)) - 6;
3018  const Sint8 *src = ((Sint8 *) (cvt->buf + cvt->len_cvt)) - 6;
3019  const Sint8 *target = ((const Sint8 *) cvt->buf);
3020  Sint8 sample5 = ((Sint8) src[5]);
3021  Sint8 sample4 = ((Sint8) src[4]);
3022  Sint8 sample3 = ((Sint8) src[3]);
3023  Sint8 sample2 = ((Sint8) src[2]);
3024  Sint8 sample1 = ((Sint8) src[1]);
3025  Sint8 sample0 = ((Sint8) src[0]);
3026  Sint8 last_sample5 = sample5;
3027  Sint8 last_sample4 = sample4;
3028  Sint8 last_sample3 = sample3;
3029  Sint8 last_sample2 = sample2;
3030  Sint8 last_sample1 = sample1;
3031  Sint8 last_sample0 = sample0;
3032  while (dst >= target) {
3033  dst[5] = ((Sint8) sample5);
3034  dst[4] = ((Sint8) sample4);
3035  dst[3] = ((Sint8) sample3);
3036  dst[2] = ((Sint8) sample2);
3037  dst[1] = ((Sint8) sample1);
3038  dst[0] = ((Sint8) sample0);
3039  dst -= 6;
3040  eps += srcsize;
3041  if ((eps << 1) >= dstsize) {
3042  src -= 6;
3043  sample5 = (Sint8) ((((Sint16) ((Sint8) src[5])) + ((Sint16) last_sample5)) >> 1);
3044  sample4 = (Sint8) ((((Sint16) ((Sint8) src[4])) + ((Sint16) last_sample4)) >> 1);
3045  sample3 = (Sint8) ((((Sint16) ((Sint8) src[3])) + ((Sint16) last_sample3)) >> 1);
3046  sample2 = (Sint8) ((((Sint16) ((Sint8) src[2])) + ((Sint16) last_sample2)) >> 1);
3047  sample1 = (Sint8) ((((Sint16) ((Sint8) src[1])) + ((Sint16) last_sample1)) >> 1);
3048  sample0 = (Sint8) ((((Sint16) ((Sint8) src[0])) + ((Sint16) last_sample0)) >> 1);
3049  last_sample5 = sample5;
3050  last_sample4 = sample4;
3051  last_sample3 = sample3;
3052  last_sample2 = sample2;
3053  last_sample1 = sample1;
3054  last_sample0 = sample0;
3055  eps -= dstsize;
3056  }
3057  }
3058  cvt->len_cvt = dstsize;
3059  if (cvt->filters[++cvt->filter_index]) {
3060  cvt->filters[cvt->filter_index] (cvt, format);
3061  }
3062 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
Sint8
int8_t Sint8
A signed 8-bit integer type.
Definition: SDL_stdinc.h:135
target
GLenum target
Definition: SDL_opengl_glext.h:1551
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
SDL_AudioCVT::rate_incr
double rate_incr
Definition: SDL_audio.h:205
src
GLenum src
Definition: SDL_opengl_glext.h:1737
Sint16
int16_t Sint16
A signed 16-bit integer type.
Definition: SDL_stdinc.h:143
static void SDL_Upsample_S8_6c_x2 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 8363 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, and SDLCALL.

8364 {
8365 #if DEBUG_CONVERT
8366  fprintf(stderr, "Upsample (x2) AUDIO_S8, 6 channels.\n");
8367 #endif
8368 
8369  const int dstsize = cvt->len_cvt * 2;
8370  Sint8 *dst = ((Sint8 *) (cvt->buf + dstsize)) - 6 * 2;
8371  const Sint8 *src = ((Sint8 *) (cvt->buf + cvt->len_cvt)) - 6;
8372  const Sint8 *target = ((const Sint8 *) cvt->buf);
8373  Sint16 last_sample5 = (Sint16) ((Sint8) src[5]);
8374  Sint16 last_sample4 = (Sint16) ((Sint8) src[4]);
8375  Sint16 last_sample3 = (Sint16) ((Sint8) src[3]);
8376  Sint16 last_sample2 = (Sint16) ((Sint8) src[2]);
8377  Sint16 last_sample1 = (Sint16) ((Sint8) src[1]);
8378  Sint16 last_sample0 = (Sint16) ((Sint8) src[0]);
8379  while (dst >= target) {
8380  const Sint16 sample5 = (Sint16) ((Sint8) src[5]);
8381  const Sint16 sample4 = (Sint16) ((Sint8) src[4]);
8382  const Sint16 sample3 = (Sint16) ((Sint8) src[3]);
8383  const Sint16 sample2 = (Sint16) ((Sint8) src[2]);
8384  const Sint16 sample1 = (Sint16) ((Sint8) src[1]);
8385  const Sint16 sample0 = (Sint16) ((Sint8) src[0]);
8386  src -= 6;
8387  dst[11] = (Sint8) ((sample5 + last_sample5) >> 1);
8388  dst[10] = (Sint8) ((sample4 + last_sample4) >> 1);
8389  dst[9] = (Sint8) ((sample3 + last_sample3) >> 1);
8390  dst[8] = (Sint8) ((sample2 + last_sample2) >> 1);
8391  dst[7] = (Sint8) ((sample1 + last_sample1) >> 1);
8392  dst[6] = (Sint8) ((sample0 + last_sample0) >> 1);
8393  dst[5] = (Sint8) sample5;
8394  dst[4] = (Sint8) sample4;
8395  dst[3] = (Sint8) sample3;
8396  dst[2] = (Sint8) sample2;
8397  dst[1] = (Sint8) sample1;
8398  dst[0] = (Sint8) sample0;
8399  last_sample5 = sample5;
8400  last_sample4 = sample4;
8401  last_sample3 = sample3;
8402  last_sample2 = sample2;
8403  last_sample1 = sample1;
8404  last_sample0 = sample0;
8405  dst -= 12;
8406  }
8407 
8408  cvt->len_cvt = dstsize;
8409  if (cvt->filters[++cvt->filter_index]) {
8410  cvt->filters[cvt->filter_index] (cvt, format);
8411  }
8412 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
Sint8
int8_t Sint8
A signed 8-bit integer type.
Definition: SDL_stdinc.h:135
target
GLenum target
Definition: SDL_opengl_glext.h:1551
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
src
GLenum src
Definition: SDL_opengl_glext.h:1737
Sint16
int16_t Sint16
A signed 16-bit integer type.
Definition: SDL_stdinc.h:143
static void SDL_Upsample_S8_6c_x4 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 8461 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, and SDLCALL.

8462 {
8463 #if DEBUG_CONVERT
8464  fprintf(stderr, "Upsample (x4) AUDIO_S8, 6 channels.\n");
8465 #endif
8466 
8467  const int dstsize = cvt->len_cvt * 4;
8468  Sint8 *dst = ((Sint8 *) (cvt->buf + dstsize)) - 6 * 4;
8469  const Sint8 *src = ((Sint8 *) (cvt->buf + cvt->len_cvt)) - 6;
8470  const Sint8 *target = ((const Sint8 *) cvt->buf);
8471  Sint16 last_sample5 = (Sint16) ((Sint8) src[5]);
8472  Sint16 last_sample4 = (Sint16) ((Sint8) src[4]);
8473  Sint16 last_sample3 = (Sint16) ((Sint8) src[3]);
8474  Sint16 last_sample2 = (Sint16) ((Sint8) src[2]);
8475  Sint16 last_sample1 = (Sint16) ((Sint8) src[1]);
8476  Sint16 last_sample0 = (Sint16) ((Sint8) src[0]);
8477  while (dst >= target) {
8478  const Sint16 sample5 = (Sint16) ((Sint8) src[5]);
8479  const Sint16 sample4 = (Sint16) ((Sint8) src[4]);
8480  const Sint16 sample3 = (Sint16) ((Sint8) src[3]);
8481  const Sint16 sample2 = (Sint16) ((Sint8) src[2]);
8482  const Sint16 sample1 = (Sint16) ((Sint8) src[1]);
8483  const Sint16 sample0 = (Sint16) ((Sint8) src[0]);
8484  src -= 6;
8485  dst[23] = (Sint8) ((sample5 + (3 * last_sample5)) >> 2);
8486  dst[22] = (Sint8) ((sample4 + (3 * last_sample4)) >> 2);
8487  dst[21] = (Sint8) ((sample3 + (3 * last_sample3)) >> 2);
8488  dst[20] = (Sint8) ((sample2 + (3 * last_sample2)) >> 2);
8489  dst[19] = (Sint8) ((sample1 + (3 * last_sample1)) >> 2);
8490  dst[18] = (Sint8) ((sample0 + (3 * last_sample0)) >> 2);
8491  dst[17] = (Sint8) ((sample5 + last_sample5) >> 1);
8492  dst[16] = (Sint8) ((sample4 + last_sample4) >> 1);
8493  dst[15] = (Sint8) ((sample3 + last_sample3) >> 1);
8494  dst[14] = (Sint8) ((sample2 + last_sample2) >> 1);
8495  dst[13] = (Sint8) ((sample1 + last_sample1) >> 1);
8496  dst[12] = (Sint8) ((sample0 + last_sample0) >> 1);
8497  dst[11] = (Sint8) (((3 * sample5) + last_sample5) >> 2);
8498  dst[10] = (Sint8) (((3 * sample4) + last_sample4) >> 2);
8499  dst[9] = (Sint8) (((3 * sample3) + last_sample3) >> 2);
8500  dst[8] = (Sint8) (((3 * sample2) + last_sample2) >> 2);
8501  dst[7] = (Sint8) (((3 * sample1) + last_sample1) >> 2);
8502  dst[6] = (Sint8) (((3 * sample0) + last_sample0) >> 2);
8503  dst[5] = (Sint8) sample5;
8504  dst[4] = (Sint8) sample4;
8505  dst[3] = (Sint8) sample3;
8506  dst[2] = (Sint8) sample2;
8507  dst[1] = (Sint8) sample1;
8508  dst[0] = (Sint8) sample0;
8509  last_sample5 = sample5;
8510  last_sample4 = sample4;
8511  last_sample3 = sample3;
8512  last_sample2 = sample2;
8513  last_sample1 = sample1;
8514  last_sample0 = sample0;
8515  dst -= 24;
8516  }
8517 
8518  cvt->len_cvt = dstsize;
8519  if (cvt->filters[++cvt->filter_index]) {
8520  cvt->filters[cvt->filter_index] (cvt, format);
8521  }
8522 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
Sint8
int8_t Sint8
A signed 8-bit integer type.
Definition: SDL_stdinc.h:135
target
GLenum target
Definition: SDL_opengl_glext.h:1551
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
src
GLenum src
Definition: SDL_opengl_glext.h:1737
Sint16
int16_t Sint16
A signed 16-bit integer type.
Definition: SDL_stdinc.h:143
static void SDL_Upsample_S8_8c ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 3122 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_AudioCVT::rate_incr, and SDLCALL.

3123 {
3124 #if DEBUG_CONVERT
3125  fprintf(stderr, "Upsample arbitrary (x%f) AUDIO_S8, 8 channels.\n", cvt->rate_incr);
3126 #endif
3127 
3128  const int srcsize = cvt->len_cvt - 128;
3129  const int dstsize = (int) (((double)(cvt->len_cvt/8)) * cvt->rate_incr) * 8;
3130  register int eps = 0;
3131  Sint8 *dst = ((Sint8 *) (cvt->buf + dstsize)) - 8;
3132  const Sint8 *src = ((Sint8 *) (cvt->buf + cvt->len_cvt)) - 8;
3133  const Sint8 *target = ((const Sint8 *) cvt->buf);
3134  Sint8 sample7 = ((Sint8) src[7]);
3135  Sint8 sample6 = ((Sint8) src[6]);
3136  Sint8 sample5 = ((Sint8) src[5]);
3137  Sint8 sample4 = ((Sint8) src[4]);
3138  Sint8 sample3 = ((Sint8) src[3]);
3139  Sint8 sample2 = ((Sint8) src[2]);
3140  Sint8 sample1 = ((Sint8) src[1]);
3141  Sint8 sample0 = ((Sint8) src[0]);
3142  Sint8 last_sample7 = sample7;
3143  Sint8 last_sample6 = sample6;
3144  Sint8 last_sample5 = sample5;
3145  Sint8 last_sample4 = sample4;
3146  Sint8 last_sample3 = sample3;
3147  Sint8 last_sample2 = sample2;
3148  Sint8 last_sample1 = sample1;
3149  Sint8 last_sample0 = sample0;
3150  while (dst >= target) {
3151  dst[7] = ((Sint8) sample7);
3152  dst[6] = ((Sint8) sample6);
3153  dst[5] = ((Sint8) sample5);
3154  dst[4] = ((Sint8) sample4);
3155  dst[3] = ((Sint8) sample3);
3156  dst[2] = ((Sint8) sample2);
3157  dst[1] = ((Sint8) sample1);
3158  dst[0] = ((Sint8) sample0);
3159  dst -= 8;
3160  eps += srcsize;
3161  if ((eps << 1) >= dstsize) {
3162  src -= 8;
3163  sample7 = (Sint8) ((((Sint16) ((Sint8) src[7])) + ((Sint16) last_sample7)) >> 1);
3164  sample6 = (Sint8) ((((Sint16) ((Sint8) src[6])) + ((Sint16) last_sample6)) >> 1);
3165  sample5 = (Sint8) ((((Sint16) ((Sint8) src[5])) + ((Sint16) last_sample5)) >> 1);
3166  sample4 = (Sint8) ((((Sint16) ((Sint8) src[4])) + ((Sint16) last_sample4)) >> 1);
3167  sample3 = (Sint8) ((((Sint16) ((Sint8) src[3])) + ((Sint16) last_sample3)) >> 1);
3168  sample2 = (Sint8) ((((Sint16) ((Sint8) src[2])) + ((Sint16) last_sample2)) >> 1);
3169  sample1 = (Sint8) ((((Sint16) ((Sint8) src[1])) + ((Sint16) last_sample1)) >> 1);
3170  sample0 = (Sint8) ((((Sint16) ((Sint8) src[0])) + ((Sint16) last_sample0)) >> 1);
3171  last_sample7 = sample7;
3172  last_sample6 = sample6;
3173  last_sample5 = sample5;
3174  last_sample4 = sample4;
3175  last_sample3 = sample3;
3176  last_sample2 = sample2;
3177  last_sample1 = sample1;
3178  last_sample0 = sample0;
3179  eps -= dstsize;
3180  }
3181  }
3182  cvt->len_cvt = dstsize;
3183  if (cvt->filters[++cvt->filter_index]) {
3184  cvt->filters[cvt->filter_index] (cvt, format);
3185  }
3186 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
Sint8
int8_t Sint8
A signed 8-bit integer type.
Definition: SDL_stdinc.h:135
target
GLenum target
Definition: SDL_opengl_glext.h:1551
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
SDL_AudioCVT::rate_incr
double rate_incr
Definition: SDL_audio.h:205
src
GLenum src
Definition: SDL_opengl_glext.h:1737
Sint16
int16_t Sint16
A signed 16-bit integer type.
Definition: SDL_stdinc.h:143
static void SDL_Upsample_S8_8c_x2 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 8571 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, and SDLCALL.

8572 {
8573 #if DEBUG_CONVERT
8574  fprintf(stderr, "Upsample (x2) AUDIO_S8, 8 channels.\n");
8575 #endif
8576 
8577  const int dstsize = cvt->len_cvt * 2;
8578  Sint8 *dst = ((Sint8 *) (cvt->buf + dstsize)) - 8 * 2;
8579  const Sint8 *src = ((Sint8 *) (cvt->buf + cvt->len_cvt)) - 8;
8580  const Sint8 *target = ((const Sint8 *) cvt->buf);
8581  Sint16 last_sample7 = (Sint16) ((Sint8) src[7]);
8582  Sint16 last_sample6 = (Sint16) ((Sint8) src[6]);
8583  Sint16 last_sample5 = (Sint16) ((Sint8) src[5]);
8584  Sint16 last_sample4 = (Sint16) ((Sint8) src[4]);
8585  Sint16 last_sample3 = (Sint16) ((Sint8) src[3]);
8586  Sint16 last_sample2 = (Sint16) ((Sint8) src[2]);
8587  Sint16 last_sample1 = (Sint16) ((Sint8) src[1]);
8588  Sint16 last_sample0 = (Sint16) ((Sint8) src[0]);
8589  while (dst >= target) {
8590  const Sint16 sample7 = (Sint16) ((Sint8) src[7]);
8591  const Sint16 sample6 = (Sint16) ((Sint8) src[6]);
8592  const Sint16 sample5 = (Sint16) ((Sint8) src[5]);
8593  const Sint16 sample4 = (Sint16) ((Sint8) src[4]);
8594  const Sint16 sample3 = (Sint16) ((Sint8) src[3]);
8595  const Sint16 sample2 = (Sint16) ((Sint8) src[2]);
8596  const Sint16 sample1 = (Sint16) ((Sint8) src[1]);
8597  const Sint16 sample0 = (Sint16) ((Sint8) src[0]);
8598  src -= 8;
8599  dst[15] = (Sint8) ((sample7 + last_sample7) >> 1);
8600  dst[14] = (Sint8) ((sample6 + last_sample6) >> 1);
8601  dst[13] = (Sint8) ((sample5 + last_sample5) >> 1);
8602  dst[12] = (Sint8) ((sample4 + last_sample4) >> 1);
8603  dst[11] = (Sint8) ((sample3 + last_sample3) >> 1);
8604  dst[10] = (Sint8) ((sample2 + last_sample2) >> 1);
8605  dst[9] = (Sint8) ((sample1 + last_sample1) >> 1);
8606  dst[8] = (Sint8) ((sample0 + last_sample0) >> 1);
8607  dst[7] = (Sint8) sample7;
8608  dst[6] = (Sint8) sample6;
8609  dst[5] = (Sint8) sample5;
8610  dst[4] = (Sint8) sample4;
8611  dst[3] = (Sint8) sample3;
8612  dst[2] = (Sint8) sample2;
8613  dst[1] = (Sint8) sample1;
8614  dst[0] = (Sint8) sample0;
8615  last_sample7 = sample7;
8616  last_sample6 = sample6;
8617  last_sample5 = sample5;
8618  last_sample4 = sample4;
8619  last_sample3 = sample3;
8620  last_sample2 = sample2;
8621  last_sample1 = sample1;
8622  last_sample0 = sample0;
8623  dst -= 16;
8624  }
8625 
8626  cvt->len_cvt = dstsize;
8627  if (cvt->filters[++cvt->filter_index]) {
8628  cvt->filters[cvt->filter_index] (cvt, format);
8629  }
8630 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
Sint8
int8_t Sint8
A signed 8-bit integer type.
Definition: SDL_stdinc.h:135
target
GLenum target
Definition: SDL_opengl_glext.h:1551
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
src
GLenum src
Definition: SDL_opengl_glext.h:1737
Sint16
int16_t Sint16
A signed 16-bit integer type.
Definition: SDL_stdinc.h:143
static void SDL_Upsample_S8_8c_x4 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 8687 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, and SDLCALL.

8688 {
8689 #if DEBUG_CONVERT
8690  fprintf(stderr, "Upsample (x4) AUDIO_S8, 8 channels.\n");
8691 #endif
8692 
8693  const int dstsize = cvt->len_cvt * 4;
8694  Sint8 *dst = ((Sint8 *) (cvt->buf + dstsize)) - 8 * 4;
8695  const Sint8 *src = ((Sint8 *) (cvt->buf + cvt->len_cvt)) - 8;
8696  const Sint8 *target = ((const Sint8 *) cvt->buf);
8697  Sint16 last_sample7 = (Sint16) ((Sint8) src[7]);
8698  Sint16 last_sample6 = (Sint16) ((Sint8) src[6]);
8699  Sint16 last_sample5 = (Sint16) ((Sint8) src[5]);
8700  Sint16 last_sample4 = (Sint16) ((Sint8) src[4]);
8701  Sint16 last_sample3 = (Sint16) ((Sint8) src[3]);
8702  Sint16 last_sample2 = (Sint16) ((Sint8) src[2]);
8703  Sint16 last_sample1 = (Sint16) ((Sint8) src[1]);
8704  Sint16 last_sample0 = (Sint16) ((Sint8) src[0]);
8705  while (dst >= target) {
8706  const Sint16 sample7 = (Sint16) ((Sint8) src[7]);
8707  const Sint16 sample6 = (Sint16) ((Sint8) src[6]);
8708  const Sint16 sample5 = (Sint16) ((Sint8) src[5]);
8709  const Sint16 sample4 = (Sint16) ((Sint8) src[4]);
8710  const Sint16 sample3 = (Sint16) ((Sint8) src[3]);
8711  const Sint16 sample2 = (Sint16) ((Sint8) src[2]);
8712  const Sint16 sample1 = (Sint16) ((Sint8) src[1]);
8713  const Sint16 sample0 = (Sint16) ((Sint8) src[0]);
8714  src -= 8;
8715  dst[31] = (Sint8) ((sample7 + (3 * last_sample7)) >> 2);
8716  dst[30] = (Sint8) ((sample6 + (3 * last_sample6)) >> 2);
8717  dst[29] = (Sint8) ((sample5 + (3 * last_sample5)) >> 2);
8718  dst[28] = (Sint8) ((sample4 + (3 * last_sample4)) >> 2);
8719  dst[27] = (Sint8) ((sample3 + (3 * last_sample3)) >> 2);
8720  dst[26] = (Sint8) ((sample2 + (3 * last_sample2)) >> 2);
8721  dst[25] = (Sint8) ((sample1 + (3 * last_sample1)) >> 2);
8722  dst[24] = (Sint8) ((sample0 + (3 * last_sample0)) >> 2);
8723  dst[23] = (Sint8) ((sample7 + last_sample7) >> 1);
8724  dst[22] = (Sint8) ((sample6 + last_sample6) >> 1);
8725  dst[21] = (Sint8) ((sample5 + last_sample5) >> 1);
8726  dst[20] = (Sint8) ((sample4 + last_sample4) >> 1);
8727  dst[19] = (Sint8) ((sample3 + last_sample3) >> 1);
8728  dst[18] = (Sint8) ((sample2 + last_sample2) >> 1);
8729  dst[17] = (Sint8) ((sample1 + last_sample1) >> 1);
8730  dst[16] = (Sint8) ((sample0 + last_sample0) >> 1);
8731  dst[15] = (Sint8) (((3 * sample7) + last_sample7) >> 2);
8732  dst[14] = (Sint8) (((3 * sample6) + last_sample6) >> 2);
8733  dst[13] = (Sint8) (((3 * sample5) + last_sample5) >> 2);
8734  dst[12] = (Sint8) (((3 * sample4) + last_sample4) >> 2);
8735  dst[11] = (Sint8) (((3 * sample3) + last_sample3) >> 2);
8736  dst[10] = (Sint8) (((3 * sample2) + last_sample2) >> 2);
8737  dst[9] = (Sint8) (((3 * sample1) + last_sample1) >> 2);
8738  dst[8] = (Sint8) (((3 * sample0) + last_sample0) >> 2);
8739  dst[7] = (Sint8) sample7;
8740  dst[6] = (Sint8) sample6;
8741  dst[5] = (Sint8) sample5;
8742  dst[4] = (Sint8) sample4;
8743  dst[3] = (Sint8) sample3;
8744  dst[2] = (Sint8) sample2;
8745  dst[1] = (Sint8) sample1;
8746  dst[0] = (Sint8) sample0;
8747  last_sample7 = sample7;
8748  last_sample6 = sample6;
8749  last_sample5 = sample5;
8750  last_sample4 = sample4;
8751  last_sample3 = sample3;
8752  last_sample2 = sample2;
8753  last_sample1 = sample1;
8754  last_sample0 = sample0;
8755  dst -= 32;
8756  }
8757 
8758  cvt->len_cvt = dstsize;
8759  if (cvt->filters[++cvt->filter_index]) {
8760  cvt->filters[cvt->filter_index] (cvt, format);
8761  }
8762 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
Sint8
int8_t Sint8
A signed 8-bit integer type.
Definition: SDL_stdinc.h:135
target
GLenum target
Definition: SDL_opengl_glext.h:1551
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
src
GLenum src
Definition: SDL_opengl_glext.h:1737
Sint16
int16_t Sint16
A signed 16-bit integer type.
Definition: SDL_stdinc.h:143
static void SDL_Upsample_U16LSB_1c ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 3256 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_AudioCVT::rate_incr, SDL_SwapLE16, and SDLCALL.

3257 {
3258 #if DEBUG_CONVERT
3259  fprintf(stderr, "Upsample arbitrary (x%f) AUDIO_U16LSB, 1 channels.\n", cvt->rate_incr);
3260 #endif
3261 
3262  const int srcsize = cvt->len_cvt - 32;
3263  const int dstsize = (int) (((double)(cvt->len_cvt/2)) * cvt->rate_incr) * 2;
3264  register int eps = 0;
3265  Uint16 *dst = ((Uint16 *) (cvt->buf + dstsize)) - 1;
3266  const Uint16 *src = ((Uint16 *) (cvt->buf + cvt->len_cvt)) - 1;
3267  const Uint16 *target = ((const Uint16 *) cvt->buf);
3268  Uint16 sample0 = SDL_SwapLE16(src[0]);
3269  Uint16 last_sample0 = sample0;
3270  while (dst >= target) {
3271  dst[0] = SDL_SwapLE16(sample0);
3272  dst--;
3273  eps += srcsize;
3274  if ((eps << 1) >= dstsize) {
3275  src--;
3276  sample0 = (Uint16) ((((Sint32) SDL_SwapLE16(src[0])) + ((Sint32) last_sample0)) >> 1);
3277  last_sample0 = sample0;
3278  eps -= dstsize;
3279  }
3280  }
3281  cvt->len_cvt = dstsize;
3282  if (cvt->filters[++cvt->filter_index]) {
3283  cvt->filters[cvt->filter_index] (cvt, format);
3284  }
3285 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
SDL_AudioCVT::rate_incr
double rate_incr
Definition: SDL_audio.h:205
Uint16
uint16_t Uint16
An unsigned 16-bit integer type.
Definition: SDL_stdinc.h:147
SDL_SwapLE16
#define SDL_SwapLE16(X)
Definition: SDL_endian.h:211
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Upsample_U16LSB_1c_x2 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 8819 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_SwapLE16, and SDLCALL.

8820 {
8821 #if DEBUG_CONVERT
8822  fprintf(stderr, "Upsample (x2) AUDIO_U16LSB, 1 channels.\n");
8823 #endif
8824 
8825  const int dstsize = cvt->len_cvt * 2;
8826  Uint16 *dst = ((Uint16 *) (cvt->buf + dstsize)) - 1 * 2;
8827  const Uint16 *src = ((Uint16 *) (cvt->buf + cvt->len_cvt)) - 1;
8828  const Uint16 *target = ((const Uint16 *) cvt->buf);
8829  Sint32 last_sample0 = (Sint32) SDL_SwapLE16(src[0]);
8830  while (dst >= target) {
8831  const Sint32 sample0 = (Sint32) SDL_SwapLE16(src[0]);
8832  src--;
8833  dst[1] = (Uint16) ((sample0 + last_sample0) >> 1);
8834  dst[0] = (Uint16) sample0;
8835  last_sample0 = sample0;
8836  dst -= 2;
8837  }
8838 
8839  cvt->len_cvt = dstsize;
8840  if (cvt->filters[++cvt->filter_index]) {
8841  cvt->filters[cvt->filter_index] (cvt, format);
8842  }
8843 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
Uint16
uint16_t Uint16
An unsigned 16-bit integer type.
Definition: SDL_stdinc.h:147
SDL_SwapLE16
#define SDL_SwapLE16(X)
Definition: SDL_endian.h:211
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Upsample_U16LSB_1c_x4 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 8872 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_SwapLE16, and SDLCALL.

8873 {
8874 #if DEBUG_CONVERT
8875  fprintf(stderr, "Upsample (x4) AUDIO_U16LSB, 1 channels.\n");
8876 #endif
8877 
8878  const int dstsize = cvt->len_cvt * 4;
8879  Uint16 *dst = ((Uint16 *) (cvt->buf + dstsize)) - 1 * 4;
8880  const Uint16 *src = ((Uint16 *) (cvt->buf + cvt->len_cvt)) - 1;
8881  const Uint16 *target = ((const Uint16 *) cvt->buf);
8882  Sint32 last_sample0 = (Sint32) SDL_SwapLE16(src[0]);
8883  while (dst >= target) {
8884  const Sint32 sample0 = (Sint32) SDL_SwapLE16(src[0]);
8885  src--;
8886  dst[3] = (Uint16) ((sample0 + (3 * last_sample0)) >> 2);
8887  dst[2] = (Uint16) ((sample0 + last_sample0) >> 1);
8888  dst[1] = (Uint16) (((3 * sample0) + last_sample0) >> 2);
8889  dst[0] = (Uint16) sample0;
8890  last_sample0 = sample0;
8891  dst -= 4;
8892  }
8893 
8894  cvt->len_cvt = dstsize;
8895  if (cvt->filters[++cvt->filter_index]) {
8896  cvt->filters[cvt->filter_index] (cvt, format);
8897  }
8898 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
Uint16
uint16_t Uint16
An unsigned 16-bit integer type.
Definition: SDL_stdinc.h:147
SDL_SwapLE16
#define SDL_SwapLE16(X)
Definition: SDL_endian.h:211
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Upsample_U16LSB_2c ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 3320 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_AudioCVT::rate_incr, SDL_SwapLE16, and SDLCALL.

3321 {
3322 #if DEBUG_CONVERT
3323  fprintf(stderr, "Upsample arbitrary (x%f) AUDIO_U16LSB, 2 channels.\n", cvt->rate_incr);
3324 #endif
3325 
3326  const int srcsize = cvt->len_cvt - 64;
3327  const int dstsize = (int) (((double)(cvt->len_cvt/4)) * cvt->rate_incr) * 4;
3328  register int eps = 0;
3329  Uint16 *dst = ((Uint16 *) (cvt->buf + dstsize)) - 2;
3330  const Uint16 *src = ((Uint16 *) (cvt->buf + cvt->len_cvt)) - 2;
3331  const Uint16 *target = ((const Uint16 *) cvt->buf);
3332  Uint16 sample1 = SDL_SwapLE16(src[1]);
3333  Uint16 sample0 = SDL_SwapLE16(src[0]);
3334  Uint16 last_sample1 = sample1;
3335  Uint16 last_sample0 = sample0;
3336  while (dst >= target) {
3337  dst[1] = SDL_SwapLE16(sample1);
3338  dst[0] = SDL_SwapLE16(sample0);
3339  dst -= 2;
3340  eps += srcsize;
3341  if ((eps << 1) >= dstsize) {
3342  src -= 2;
3343  sample1 = (Uint16) ((((Sint32) SDL_SwapLE16(src[1])) + ((Sint32) last_sample1)) >> 1);
3344  sample0 = (Uint16) ((((Sint32) SDL_SwapLE16(src[0])) + ((Sint32) last_sample0)) >> 1);
3345  last_sample1 = sample1;
3346  last_sample0 = sample0;
3347  eps -= dstsize;
3348  }
3349  }
3350  cvt->len_cvt = dstsize;
3351  if (cvt->filters[++cvt->filter_index]) {
3352  cvt->filters[cvt->filter_index] (cvt, format);
3353  }
3354 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
SDL_AudioCVT::rate_incr
double rate_incr
Definition: SDL_audio.h:205
Uint16
uint16_t Uint16
An unsigned 16-bit integer type.
Definition: SDL_stdinc.h:147
SDL_SwapLE16
#define SDL_SwapLE16(X)
Definition: SDL_endian.h:211
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Upsample_U16LSB_2c_x2 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 8927 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_SwapLE16, and SDLCALL.

8928 {
8929 #if DEBUG_CONVERT
8930  fprintf(stderr, "Upsample (x2) AUDIO_U16LSB, 2 channels.\n");
8931 #endif
8932 
8933  const int dstsize = cvt->len_cvt * 2;
8934  Uint16 *dst = ((Uint16 *) (cvt->buf + dstsize)) - 2 * 2;
8935  const Uint16 *src = ((Uint16 *) (cvt->buf + cvt->len_cvt)) - 2;
8936  const Uint16 *target = ((const Uint16 *) cvt->buf);
8937  Sint32 last_sample1 = (Sint32) SDL_SwapLE16(src[1]);
8938  Sint32 last_sample0 = (Sint32) SDL_SwapLE16(src[0]);
8939  while (dst >= target) {
8940  const Sint32 sample1 = (Sint32) SDL_SwapLE16(src[1]);
8941  const Sint32 sample0 = (Sint32) SDL_SwapLE16(src[0]);
8942  src -= 2;
8943  dst[3] = (Uint16) ((sample1 + last_sample1) >> 1);
8944  dst[2] = (Uint16) ((sample0 + last_sample0) >> 1);
8945  dst[1] = (Uint16) sample1;
8946  dst[0] = (Uint16) sample0;
8947  last_sample1 = sample1;
8948  last_sample0 = sample0;
8949  dst -= 4;
8950  }
8951 
8952  cvt->len_cvt = dstsize;
8953  if (cvt->filters[++cvt->filter_index]) {
8954  cvt->filters[cvt->filter_index] (cvt, format);
8955  }
8956 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
Uint16
uint16_t Uint16
An unsigned 16-bit integer type.
Definition: SDL_stdinc.h:147
SDL_SwapLE16
#define SDL_SwapLE16(X)
Definition: SDL_endian.h:211
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Upsample_U16LSB_2c_x4 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 8989 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_SwapLE16, and SDLCALL.

8990 {
8991 #if DEBUG_CONVERT
8992  fprintf(stderr, "Upsample (x4) AUDIO_U16LSB, 2 channels.\n");
8993 #endif
8994 
8995  const int dstsize = cvt->len_cvt * 4;
8996  Uint16 *dst = ((Uint16 *) (cvt->buf + dstsize)) - 2 * 4;
8997  const Uint16 *src = ((Uint16 *) (cvt->buf + cvt->len_cvt)) - 2;
8998  const Uint16 *target = ((const Uint16 *) cvt->buf);
8999  Sint32 last_sample1 = (Sint32) SDL_SwapLE16(src[1]);
9000  Sint32 last_sample0 = (Sint32) SDL_SwapLE16(src[0]);
9001  while (dst >= target) {
9002  const Sint32 sample1 = (Sint32) SDL_SwapLE16(src[1]);
9003  const Sint32 sample0 = (Sint32) SDL_SwapLE16(src[0]);
9004  src -= 2;
9005  dst[7] = (Uint16) ((sample1 + (3 * last_sample1)) >> 2);
9006  dst[6] = (Uint16) ((sample0 + (3 * last_sample0)) >> 2);
9007  dst[5] = (Uint16) ((sample1 + last_sample1) >> 1);
9008  dst[4] = (Uint16) ((sample0 + last_sample0) >> 1);
9009  dst[3] = (Uint16) (((3 * sample1) + last_sample1) >> 2);
9010  dst[2] = (Uint16) (((3 * sample0) + last_sample0) >> 2);
9011  dst[1] = (Uint16) sample1;
9012  dst[0] = (Uint16) sample0;
9013  last_sample1 = sample1;
9014  last_sample0 = sample0;
9015  dst -= 8;
9016  }
9017 
9018  cvt->len_cvt = dstsize;
9019  if (cvt->filters[++cvt->filter_index]) {
9020  cvt->filters[cvt->filter_index] (cvt, format);
9021  }
9022 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
Uint16
uint16_t Uint16
An unsigned 16-bit integer type.
Definition: SDL_stdinc.h:147
SDL_SwapLE16
#define SDL_SwapLE16(X)
Definition: SDL_endian.h:211
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Upsample_U16LSB_4c ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 3394 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_AudioCVT::rate_incr, SDL_SwapLE16, and SDLCALL.

3395 {
3396 #if DEBUG_CONVERT
3397  fprintf(stderr, "Upsample arbitrary (x%f) AUDIO_U16LSB, 4 channels.\n", cvt->rate_incr);
3398 #endif
3399 
3400  const int srcsize = cvt->len_cvt - 128;
3401  const int dstsize = (int) (((double)(cvt->len_cvt/8)) * cvt->rate_incr) * 8;
3402  register int eps = 0;
3403  Uint16 *dst = ((Uint16 *) (cvt->buf + dstsize)) - 4;
3404  const Uint16 *src = ((Uint16 *) (cvt->buf + cvt->len_cvt)) - 4;
3405  const Uint16 *target = ((const Uint16 *) cvt->buf);
3406  Uint16 sample3 = SDL_SwapLE16(src[3]);
3407  Uint16 sample2 = SDL_SwapLE16(src[2]);
3408  Uint16 sample1 = SDL_SwapLE16(src[1]);
3409  Uint16 sample0 = SDL_SwapLE16(src[0]);
3410  Uint16 last_sample3 = sample3;
3411  Uint16 last_sample2 = sample2;
3412  Uint16 last_sample1 = sample1;
3413  Uint16 last_sample0 = sample0;
3414  while (dst >= target) {
3415  dst[3] = SDL_SwapLE16(sample3);
3416  dst[2] = SDL_SwapLE16(sample2);
3417  dst[1] = SDL_SwapLE16(sample1);
3418  dst[0] = SDL_SwapLE16(sample0);
3419  dst -= 4;
3420  eps += srcsize;
3421  if ((eps << 1) >= dstsize) {
3422  src -= 4;
3423  sample3 = (Uint16) ((((Sint32) SDL_SwapLE16(src[3])) + ((Sint32) last_sample3)) >> 1);
3424  sample2 = (Uint16) ((((Sint32) SDL_SwapLE16(src[2])) + ((Sint32) last_sample2)) >> 1);
3425  sample1 = (Uint16) ((((Sint32) SDL_SwapLE16(src[1])) + ((Sint32) last_sample1)) >> 1);
3426  sample0 = (Uint16) ((((Sint32) SDL_SwapLE16(src[0])) + ((Sint32) last_sample0)) >> 1);
3427  last_sample3 = sample3;
3428  last_sample2 = sample2;
3429  last_sample1 = sample1;
3430  last_sample0 = sample0;
3431  eps -= dstsize;
3432  }
3433  }
3434  cvt->len_cvt = dstsize;
3435  if (cvt->filters[++cvt->filter_index]) {
3436  cvt->filters[cvt->filter_index] (cvt, format);
3437  }
3438 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
SDL_AudioCVT::rate_incr
double rate_incr
Definition: SDL_audio.h:205
Uint16
uint16_t Uint16
An unsigned 16-bit integer type.
Definition: SDL_stdinc.h:147
SDL_SwapLE16
#define SDL_SwapLE16(X)
Definition: SDL_endian.h:211
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Upsample_U16LSB_4c_x2 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 9055 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_SwapLE16, and SDLCALL.

9056 {
9057 #if DEBUG_CONVERT
9058  fprintf(stderr, "Upsample (x2) AUDIO_U16LSB, 4 channels.\n");
9059 #endif
9060 
9061  const int dstsize = cvt->len_cvt * 2;
9062  Uint16 *dst = ((Uint16 *) (cvt->buf + dstsize)) - 4 * 2;
9063  const Uint16 *src = ((Uint16 *) (cvt->buf + cvt->len_cvt)) - 4;
9064  const Uint16 *target = ((const Uint16 *) cvt->buf);
9065  Sint32 last_sample3 = (Sint32) SDL_SwapLE16(src[3]);
9066  Sint32 last_sample2 = (Sint32) SDL_SwapLE16(src[2]);
9067  Sint32 last_sample1 = (Sint32) SDL_SwapLE16(src[1]);
9068  Sint32 last_sample0 = (Sint32) SDL_SwapLE16(src[0]);
9069  while (dst >= target) {
9070  const Sint32 sample3 = (Sint32) SDL_SwapLE16(src[3]);
9071  const Sint32 sample2 = (Sint32) SDL_SwapLE16(src[2]);
9072  const Sint32 sample1 = (Sint32) SDL_SwapLE16(src[1]);
9073  const Sint32 sample0 = (Sint32) SDL_SwapLE16(src[0]);
9074  src -= 4;
9075  dst[7] = (Uint16) ((sample3 + last_sample3) >> 1);
9076  dst[6] = (Uint16) ((sample2 + last_sample2) >> 1);
9077  dst[5] = (Uint16) ((sample1 + last_sample1) >> 1);
9078  dst[4] = (Uint16) ((sample0 + last_sample0) >> 1);
9079  dst[3] = (Uint16) sample3;
9080  dst[2] = (Uint16) sample2;
9081  dst[1] = (Uint16) sample1;
9082  dst[0] = (Uint16) sample0;
9083  last_sample3 = sample3;
9084  last_sample2 = sample2;
9085  last_sample1 = sample1;
9086  last_sample0 = sample0;
9087  dst -= 8;
9088  }
9089 
9090  cvt->len_cvt = dstsize;
9091  if (cvt->filters[++cvt->filter_index]) {
9092  cvt->filters[cvt->filter_index] (cvt, format);
9093  }
9094 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
Uint16
uint16_t Uint16
An unsigned 16-bit integer type.
Definition: SDL_stdinc.h:147
SDL_SwapLE16
#define SDL_SwapLE16(X)
Definition: SDL_endian.h:211
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Upsample_U16LSB_4c_x4 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 9135 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_SwapLE16, and SDLCALL.

9136 {
9137 #if DEBUG_CONVERT
9138  fprintf(stderr, "Upsample (x4) AUDIO_U16LSB, 4 channels.\n");
9139 #endif
9140 
9141  const int dstsize = cvt->len_cvt * 4;
9142  Uint16 *dst = ((Uint16 *) (cvt->buf + dstsize)) - 4 * 4;
9143  const Uint16 *src = ((Uint16 *) (cvt->buf + cvt->len_cvt)) - 4;
9144  const Uint16 *target = ((const Uint16 *) cvt->buf);
9145  Sint32 last_sample3 = (Sint32) SDL_SwapLE16(src[3]);
9146  Sint32 last_sample2 = (Sint32) SDL_SwapLE16(src[2]);
9147  Sint32 last_sample1 = (Sint32) SDL_SwapLE16(src[1]);
9148  Sint32 last_sample0 = (Sint32) SDL_SwapLE16(src[0]);
9149  while (dst >= target) {
9150  const Sint32 sample3 = (Sint32) SDL_SwapLE16(src[3]);
9151  const Sint32 sample2 = (Sint32) SDL_SwapLE16(src[2]);
9152  const Sint32 sample1 = (Sint32) SDL_SwapLE16(src[1]);
9153  const Sint32 sample0 = (Sint32) SDL_SwapLE16(src[0]);
9154  src -= 4;
9155  dst[15] = (Uint16) ((sample3 + (3 * last_sample3)) >> 2);
9156  dst[14] = (Uint16) ((sample2 + (3 * last_sample2)) >> 2);
9157  dst[13] = (Uint16) ((sample1 + (3 * last_sample1)) >> 2);
9158  dst[12] = (Uint16) ((sample0 + (3 * last_sample0)) >> 2);
9159  dst[11] = (Uint16) ((sample3 + last_sample3) >> 1);
9160  dst[10] = (Uint16) ((sample2 + last_sample2) >> 1);
9161  dst[9] = (Uint16) ((sample1 + last_sample1) >> 1);
9162  dst[8] = (Uint16) ((sample0 + last_sample0) >> 1);
9163  dst[7] = (Uint16) (((3 * sample3) + last_sample3) >> 2);
9164  dst[6] = (Uint16) (((3 * sample2) + last_sample2) >> 2);
9165  dst[5] = (Uint16) (((3 * sample1) + last_sample1) >> 2);
9166  dst[4] = (Uint16) (((3 * sample0) + last_sample0) >> 2);
9167  dst[3] = (Uint16) sample3;
9168  dst[2] = (Uint16) sample2;
9169  dst[1] = (Uint16) sample1;
9170  dst[0] = (Uint16) sample0;
9171  last_sample3 = sample3;
9172  last_sample2 = sample2;
9173  last_sample1 = sample1;
9174  last_sample0 = sample0;
9175  dst -= 16;
9176  }
9177 
9178  cvt->len_cvt = dstsize;
9179  if (cvt->filters[++cvt->filter_index]) {
9180  cvt->filters[cvt->filter_index] (cvt, format);
9181  }
9182 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
Uint16
uint16_t Uint16
An unsigned 16-bit integer type.
Definition: SDL_stdinc.h:147
SDL_SwapLE16
#define SDL_SwapLE16(X)
Definition: SDL_endian.h:211
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Upsample_U16LSB_6c ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 3488 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_AudioCVT::rate_incr, SDL_SwapLE16, and SDLCALL.

3489 {
3490 #if DEBUG_CONVERT
3491  fprintf(stderr, "Upsample arbitrary (x%f) AUDIO_U16LSB, 6 channels.\n", cvt->rate_incr);
3492 #endif
3493 
3494  const int srcsize = cvt->len_cvt - 192;
3495  const int dstsize = (int) (((double)(cvt->len_cvt/12)) * cvt->rate_incr) * 12;
3496  register int eps = 0;
3497  Uint16 *dst = ((Uint16 *) (cvt->buf + dstsize)) - 6;
3498  const Uint16 *src = ((Uint16 *) (cvt->buf + cvt->len_cvt)) - 6;
3499  const Uint16 *target = ((const Uint16 *) cvt->buf);
3500  Uint16 sample5 = SDL_SwapLE16(src[5]);
3501  Uint16 sample4 = SDL_SwapLE16(src[4]);
3502  Uint16 sample3 = SDL_SwapLE16(src[3]);
3503  Uint16 sample2 = SDL_SwapLE16(src[2]);
3504  Uint16 sample1 = SDL_SwapLE16(src[1]);
3505  Uint16 sample0 = SDL_SwapLE16(src[0]);
3506  Uint16 last_sample5 = sample5;
3507  Uint16 last_sample4 = sample4;
3508  Uint16 last_sample3 = sample3;
3509  Uint16 last_sample2 = sample2;
3510  Uint16 last_sample1 = sample1;
3511  Uint16 last_sample0 = sample0;
3512  while (dst >= target) {
3513  dst[5] = SDL_SwapLE16(sample5);
3514  dst[4] = SDL_SwapLE16(sample4);
3515  dst[3] = SDL_SwapLE16(sample3);
3516  dst[2] = SDL_SwapLE16(sample2);
3517  dst[1] = SDL_SwapLE16(sample1);
3518  dst[0] = SDL_SwapLE16(sample0);
3519  dst -= 6;
3520  eps += srcsize;
3521  if ((eps << 1) >= dstsize) {
3522  src -= 6;
3523  sample5 = (Uint16) ((((Sint32) SDL_SwapLE16(src[5])) + ((Sint32) last_sample5)) >> 1);
3524  sample4 = (Uint16) ((((Sint32) SDL_SwapLE16(src[4])) + ((Sint32) last_sample4)) >> 1);
3525  sample3 = (Uint16) ((((Sint32) SDL_SwapLE16(src[3])) + ((Sint32) last_sample3)) >> 1);
3526  sample2 = (Uint16) ((((Sint32) SDL_SwapLE16(src[2])) + ((Sint32) last_sample2)) >> 1);
3527  sample1 = (Uint16) ((((Sint32) SDL_SwapLE16(src[1])) + ((Sint32) last_sample1)) >> 1);
3528  sample0 = (Uint16) ((((Sint32) SDL_SwapLE16(src[0])) + ((Sint32) last_sample0)) >> 1);
3529  last_sample5 = sample5;
3530  last_sample4 = sample4;
3531  last_sample3 = sample3;
3532  last_sample2 = sample2;
3533  last_sample1 = sample1;
3534  last_sample0 = sample0;
3535  eps -= dstsize;
3536  }
3537  }
3538  cvt->len_cvt = dstsize;
3539  if (cvt->filters[++cvt->filter_index]) {
3540  cvt->filters[cvt->filter_index] (cvt, format);
3541  }
3542 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
SDL_AudioCVT::rate_incr
double rate_incr
Definition: SDL_audio.h:205
Uint16
uint16_t Uint16
An unsigned 16-bit integer type.
Definition: SDL_stdinc.h:147
SDL_SwapLE16
#define SDL_SwapLE16(X)
Definition: SDL_endian.h:211
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Upsample_U16LSB_6c_x2 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 9223 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_SwapLE16, and SDLCALL.

9224 {
9225 #if DEBUG_CONVERT
9226  fprintf(stderr, "Upsample (x2) AUDIO_U16LSB, 6 channels.\n");
9227 #endif
9228 
9229  const int dstsize = cvt->len_cvt * 2;
9230  Uint16 *dst = ((Uint16 *) (cvt->buf + dstsize)) - 6 * 2;
9231  const Uint16 *src = ((Uint16 *) (cvt->buf + cvt->len_cvt)) - 6;
9232  const Uint16 *target = ((const Uint16 *) cvt->buf);
9233  Sint32 last_sample5 = (Sint32) SDL_SwapLE16(src[5]);
9234  Sint32 last_sample4 = (Sint32) SDL_SwapLE16(src[4]);
9235  Sint32 last_sample3 = (Sint32) SDL_SwapLE16(src[3]);
9236  Sint32 last_sample2 = (Sint32) SDL_SwapLE16(src[2]);
9237  Sint32 last_sample1 = (Sint32) SDL_SwapLE16(src[1]);
9238  Sint32 last_sample0 = (Sint32) SDL_SwapLE16(src[0]);
9239  while (dst >= target) {
9240  const Sint32 sample5 = (Sint32) SDL_SwapLE16(src[5]);
9241  const Sint32 sample4 = (Sint32) SDL_SwapLE16(src[4]);
9242  const Sint32 sample3 = (Sint32) SDL_SwapLE16(src[3]);
9243  const Sint32 sample2 = (Sint32) SDL_SwapLE16(src[2]);
9244  const Sint32 sample1 = (Sint32) SDL_SwapLE16(src[1]);
9245  const Sint32 sample0 = (Sint32) SDL_SwapLE16(src[0]);
9246  src -= 6;
9247  dst[11] = (Uint16) ((sample5 + last_sample5) >> 1);
9248  dst[10] = (Uint16) ((sample4 + last_sample4) >> 1);
9249  dst[9] = (Uint16) ((sample3 + last_sample3) >> 1);
9250  dst[8] = (Uint16) ((sample2 + last_sample2) >> 1);
9251  dst[7] = (Uint16) ((sample1 + last_sample1) >> 1);
9252  dst[6] = (Uint16) ((sample0 + last_sample0) >> 1);
9253  dst[5] = (Uint16) sample5;
9254  dst[4] = (Uint16) sample4;
9255  dst[3] = (Uint16) sample3;
9256  dst[2] = (Uint16) sample2;
9257  dst[1] = (Uint16) sample1;
9258  dst[0] = (Uint16) sample0;
9259  last_sample5 = sample5;
9260  last_sample4 = sample4;
9261  last_sample3 = sample3;
9262  last_sample2 = sample2;
9263  last_sample1 = sample1;
9264  last_sample0 = sample0;
9265  dst -= 12;
9266  }
9267 
9268  cvt->len_cvt = dstsize;
9269  if (cvt->filters[++cvt->filter_index]) {
9270  cvt->filters[cvt->filter_index] (cvt, format);
9271  }
9272 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
Uint16
uint16_t Uint16
An unsigned 16-bit integer type.
Definition: SDL_stdinc.h:147
SDL_SwapLE16
#define SDL_SwapLE16(X)
Definition: SDL_endian.h:211
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Upsample_U16LSB_6c_x4 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 9321 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_SwapLE16, and SDLCALL.

9322 {
9323 #if DEBUG_CONVERT
9324  fprintf(stderr, "Upsample (x4) AUDIO_U16LSB, 6 channels.\n");
9325 #endif
9326 
9327  const int dstsize = cvt->len_cvt * 4;
9328  Uint16 *dst = ((Uint16 *) (cvt->buf + dstsize)) - 6 * 4;
9329  const Uint16 *src = ((Uint16 *) (cvt->buf + cvt->len_cvt)) - 6;
9330  const Uint16 *target = ((const Uint16 *) cvt->buf);
9331  Sint32 last_sample5 = (Sint32) SDL_SwapLE16(src[5]);
9332  Sint32 last_sample4 = (Sint32) SDL_SwapLE16(src[4]);
9333  Sint32 last_sample3 = (Sint32) SDL_SwapLE16(src[3]);
9334  Sint32 last_sample2 = (Sint32) SDL_SwapLE16(src[2]);
9335  Sint32 last_sample1 = (Sint32) SDL_SwapLE16(src[1]);
9336  Sint32 last_sample0 = (Sint32) SDL_SwapLE16(src[0]);
9337  while (dst >= target) {
9338  const Sint32 sample5 = (Sint32) SDL_SwapLE16(src[5]);
9339  const Sint32 sample4 = (Sint32) SDL_SwapLE16(src[4]);
9340  const Sint32 sample3 = (Sint32) SDL_SwapLE16(src[3]);
9341  const Sint32 sample2 = (Sint32) SDL_SwapLE16(src[2]);
9342  const Sint32 sample1 = (Sint32) SDL_SwapLE16(src[1]);
9343  const Sint32 sample0 = (Sint32) SDL_SwapLE16(src[0]);
9344  src -= 6;
9345  dst[23] = (Uint16) ((sample5 + (3 * last_sample5)) >> 2);
9346  dst[22] = (Uint16) ((sample4 + (3 * last_sample4)) >> 2);
9347  dst[21] = (Uint16) ((sample3 + (3 * last_sample3)) >> 2);
9348  dst[20] = (Uint16) ((sample2 + (3 * last_sample2)) >> 2);
9349  dst[19] = (Uint16) ((sample1 + (3 * last_sample1)) >> 2);
9350  dst[18] = (Uint16) ((sample0 + (3 * last_sample0)) >> 2);
9351  dst[17] = (Uint16) ((sample5 + last_sample5) >> 1);
9352  dst[16] = (Uint16) ((sample4 + last_sample4) >> 1);
9353  dst[15] = (Uint16) ((sample3 + last_sample3) >> 1);
9354  dst[14] = (Uint16) ((sample2 + last_sample2) >> 1);
9355  dst[13] = (Uint16) ((sample1 + last_sample1) >> 1);
9356  dst[12] = (Uint16) ((sample0 + last_sample0) >> 1);
9357  dst[11] = (Uint16) (((3 * sample5) + last_sample5) >> 2);
9358  dst[10] = (Uint16) (((3 * sample4) + last_sample4) >> 2);
9359  dst[9] = (Uint16) (((3 * sample3) + last_sample3) >> 2);
9360  dst[8] = (Uint16) (((3 * sample2) + last_sample2) >> 2);
9361  dst[7] = (Uint16) (((3 * sample1) + last_sample1) >> 2);
9362  dst[6] = (Uint16) (((3 * sample0) + last_sample0) >> 2);
9363  dst[5] = (Uint16) sample5;
9364  dst[4] = (Uint16) sample4;
9365  dst[3] = (Uint16) sample3;
9366  dst[2] = (Uint16) sample2;
9367  dst[1] = (Uint16) sample1;
9368  dst[0] = (Uint16) sample0;
9369  last_sample5 = sample5;
9370  last_sample4 = sample4;
9371  last_sample3 = sample3;
9372  last_sample2 = sample2;
9373  last_sample1 = sample1;
9374  last_sample0 = sample0;
9375  dst -= 24;
9376  }
9377 
9378  cvt->len_cvt = dstsize;
9379  if (cvt->filters[++cvt->filter_index]) {
9380  cvt->filters[cvt->filter_index] (cvt, format);
9381  }
9382 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
Uint16
uint16_t Uint16
An unsigned 16-bit integer type.
Definition: SDL_stdinc.h:147
SDL_SwapLE16
#define SDL_SwapLE16(X)
Definition: SDL_endian.h:211
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Upsample_U16LSB_8c ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 3602 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_AudioCVT::rate_incr, SDL_SwapLE16, and SDLCALL.

3603 {
3604 #if DEBUG_CONVERT
3605  fprintf(stderr, "Upsample arbitrary (x%f) AUDIO_U16LSB, 8 channels.\n", cvt->rate_incr);
3606 #endif
3607 
3608  const int srcsize = cvt->len_cvt - 256;
3609  const int dstsize = (int) (((double)(cvt->len_cvt/16)) * cvt->rate_incr) * 16;
3610  register int eps = 0;
3611  Uint16 *dst = ((Uint16 *) (cvt->buf + dstsize)) - 8;
3612  const Uint16 *src = ((Uint16 *) (cvt->buf + cvt->len_cvt)) - 8;
3613  const Uint16 *target = ((const Uint16 *) cvt->buf);
3614  Uint16 sample7 = SDL_SwapLE16(src[7]);
3615  Uint16 sample6 = SDL_SwapLE16(src[6]);
3616  Uint16 sample5 = SDL_SwapLE16(src[5]);
3617  Uint16 sample4 = SDL_SwapLE16(src[4]);
3618  Uint16 sample3 = SDL_SwapLE16(src[3]);
3619  Uint16 sample2 = SDL_SwapLE16(src[2]);
3620  Uint16 sample1 = SDL_SwapLE16(src[1]);
3621  Uint16 sample0 = SDL_SwapLE16(src[0]);
3622  Uint16 last_sample7 = sample7;
3623  Uint16 last_sample6 = sample6;
3624  Uint16 last_sample5 = sample5;
3625  Uint16 last_sample4 = sample4;
3626  Uint16 last_sample3 = sample3;
3627  Uint16 last_sample2 = sample2;
3628  Uint16 last_sample1 = sample1;
3629  Uint16 last_sample0 = sample0;
3630  while (dst >= target) {
3631  dst[7] = SDL_SwapLE16(sample7);
3632  dst[6] = SDL_SwapLE16(sample6);
3633  dst[5] = SDL_SwapLE16(sample5);
3634  dst[4] = SDL_SwapLE16(sample4);
3635  dst[3] = SDL_SwapLE16(sample3);
3636  dst[2] = SDL_SwapLE16(sample2);
3637  dst[1] = SDL_SwapLE16(sample1);
3638  dst[0] = SDL_SwapLE16(sample0);
3639  dst -= 8;
3640  eps += srcsize;
3641  if ((eps << 1) >= dstsize) {
3642  src -= 8;
3643  sample7 = (Uint16) ((((Sint32) SDL_SwapLE16(src[7])) + ((Sint32) last_sample7)) >> 1);
3644  sample6 = (Uint16) ((((Sint32) SDL_SwapLE16(src[6])) + ((Sint32) last_sample6)) >> 1);
3645  sample5 = (Uint16) ((((Sint32) SDL_SwapLE16(src[5])) + ((Sint32) last_sample5)) >> 1);
3646  sample4 = (Uint16) ((((Sint32) SDL_SwapLE16(src[4])) + ((Sint32) last_sample4)) >> 1);
3647  sample3 = (Uint16) ((((Sint32) SDL_SwapLE16(src[3])) + ((Sint32) last_sample3)) >> 1);
3648  sample2 = (Uint16) ((((Sint32) SDL_SwapLE16(src[2])) + ((Sint32) last_sample2)) >> 1);
3649  sample1 = (Uint16) ((((Sint32) SDL_SwapLE16(src[1])) + ((Sint32) last_sample1)) >> 1);
3650  sample0 = (Uint16) ((((Sint32) SDL_SwapLE16(src[0])) + ((Sint32) last_sample0)) >> 1);
3651  last_sample7 = sample7;
3652  last_sample6 = sample6;
3653  last_sample5 = sample5;
3654  last_sample4 = sample4;
3655  last_sample3 = sample3;
3656  last_sample2 = sample2;
3657  last_sample1 = sample1;
3658  last_sample0 = sample0;
3659  eps -= dstsize;
3660  }
3661  }
3662  cvt->len_cvt = dstsize;
3663  if (cvt->filters[++cvt->filter_index]) {
3664  cvt->filters[cvt->filter_index] (cvt, format);
3665  }
3666 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
SDL_AudioCVT::rate_incr
double rate_incr
Definition: SDL_audio.h:205
Uint16
uint16_t Uint16
An unsigned 16-bit integer type.
Definition: SDL_stdinc.h:147
SDL_SwapLE16
#define SDL_SwapLE16(X)
Definition: SDL_endian.h:211
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Upsample_U16LSB_8c_x2 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 9431 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_SwapLE16, and SDLCALL.

9432 {
9433 #if DEBUG_CONVERT
9434  fprintf(stderr, "Upsample (x2) AUDIO_U16LSB, 8 channels.\n");
9435 #endif
9436 
9437  const int dstsize = cvt->len_cvt * 2;
9438  Uint16 *dst = ((Uint16 *) (cvt->buf + dstsize)) - 8 * 2;
9439  const Uint16 *src = ((Uint16 *) (cvt->buf + cvt->len_cvt)) - 8;
9440  const Uint16 *target = ((const Uint16 *) cvt->buf);
9441  Sint32 last_sample7 = (Sint32) SDL_SwapLE16(src[7]);
9442  Sint32 last_sample6 = (Sint32) SDL_SwapLE16(src[6]);
9443  Sint32 last_sample5 = (Sint32) SDL_SwapLE16(src[5]);
9444  Sint32 last_sample4 = (Sint32) SDL_SwapLE16(src[4]);
9445  Sint32 last_sample3 = (Sint32) SDL_SwapLE16(src[3]);
9446  Sint32 last_sample2 = (Sint32) SDL_SwapLE16(src[2]);
9447  Sint32 last_sample1 = (Sint32) SDL_SwapLE16(src[1]);
9448  Sint32 last_sample0 = (Sint32) SDL_SwapLE16(src[0]);
9449  while (dst >= target) {
9450  const Sint32 sample7 = (Sint32) SDL_SwapLE16(src[7]);
9451  const Sint32 sample6 = (Sint32) SDL_SwapLE16(src[6]);
9452  const Sint32 sample5 = (Sint32) SDL_SwapLE16(src[5]);
9453  const Sint32 sample4 = (Sint32) SDL_SwapLE16(src[4]);
9454  const Sint32 sample3 = (Sint32) SDL_SwapLE16(src[3]);
9455  const Sint32 sample2 = (Sint32) SDL_SwapLE16(src[2]);
9456  const Sint32 sample1 = (Sint32) SDL_SwapLE16(src[1]);
9457  const Sint32 sample0 = (Sint32) SDL_SwapLE16(src[0]);
9458  src -= 8;
9459  dst[15] = (Uint16) ((sample7 + last_sample7) >> 1);
9460  dst[14] = (Uint16) ((sample6 + last_sample6) >> 1);
9461  dst[13] = (Uint16) ((sample5 + last_sample5) >> 1);
9462  dst[12] = (Uint16) ((sample4 + last_sample4) >> 1);
9463  dst[11] = (Uint16) ((sample3 + last_sample3) >> 1);
9464  dst[10] = (Uint16) ((sample2 + last_sample2) >> 1);
9465  dst[9] = (Uint16) ((sample1 + last_sample1) >> 1);
9466  dst[8] = (Uint16) ((sample0 + last_sample0) >> 1);
9467  dst[7] = (Uint16) sample7;
9468  dst[6] = (Uint16) sample6;
9469  dst[5] = (Uint16) sample5;
9470  dst[4] = (Uint16) sample4;
9471  dst[3] = (Uint16) sample3;
9472  dst[2] = (Uint16) sample2;
9473  dst[1] = (Uint16) sample1;
9474  dst[0] = (Uint16) sample0;
9475  last_sample7 = sample7;
9476  last_sample6 = sample6;
9477  last_sample5 = sample5;
9478  last_sample4 = sample4;
9479  last_sample3 = sample3;
9480  last_sample2 = sample2;
9481  last_sample1 = sample1;
9482  last_sample0 = sample0;
9483  dst -= 16;
9484  }
9485 
9486  cvt->len_cvt = dstsize;
9487  if (cvt->filters[++cvt->filter_index]) {
9488  cvt->filters[cvt->filter_index] (cvt, format);
9489  }
9490 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
Uint16
uint16_t Uint16
An unsigned 16-bit integer type.
Definition: SDL_stdinc.h:147
SDL_SwapLE16
#define SDL_SwapLE16(X)
Definition: SDL_endian.h:211
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Upsample_U16LSB_8c_x4 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 9547 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_SwapLE16, and SDLCALL.

9548 {
9549 #if DEBUG_CONVERT
9550  fprintf(stderr, "Upsample (x4) AUDIO_U16LSB, 8 channels.\n");
9551 #endif
9552 
9553  const int dstsize = cvt->len_cvt * 4;
9554  Uint16 *dst = ((Uint16 *) (cvt->buf + dstsize)) - 8 * 4;
9555  const Uint16 *src = ((Uint16 *) (cvt->buf + cvt->len_cvt)) - 8;
9556  const Uint16 *target = ((const Uint16 *) cvt->buf);
9557  Sint32 last_sample7 = (Sint32) SDL_SwapLE16(src[7]);
9558  Sint32 last_sample6 = (Sint32) SDL_SwapLE16(src[6]);
9559  Sint32 last_sample5 = (Sint32) SDL_SwapLE16(src[5]);
9560  Sint32 last_sample4 = (Sint32) SDL_SwapLE16(src[4]);
9561  Sint32 last_sample3 = (Sint32) SDL_SwapLE16(src[3]);
9562  Sint32 last_sample2 = (Sint32) SDL_SwapLE16(src[2]);
9563  Sint32 last_sample1 = (Sint32) SDL_SwapLE16(src[1]);
9564  Sint32 last_sample0 = (Sint32) SDL_SwapLE16(src[0]);
9565  while (dst >= target) {
9566  const Sint32 sample7 = (Sint32) SDL_SwapLE16(src[7]);
9567  const Sint32 sample6 = (Sint32) SDL_SwapLE16(src[6]);
9568  const Sint32 sample5 = (Sint32) SDL_SwapLE16(src[5]);
9569  const Sint32 sample4 = (Sint32) SDL_SwapLE16(src[4]);
9570  const Sint32 sample3 = (Sint32) SDL_SwapLE16(src[3]);
9571  const Sint32 sample2 = (Sint32) SDL_SwapLE16(src[2]);
9572  const Sint32 sample1 = (Sint32) SDL_SwapLE16(src[1]);
9573  const Sint32 sample0 = (Sint32) SDL_SwapLE16(src[0]);
9574  src -= 8;
9575  dst[31] = (Uint16) ((sample7 + (3 * last_sample7)) >> 2);
9576  dst[30] = (Uint16) ((sample6 + (3 * last_sample6)) >> 2);
9577  dst[29] = (Uint16) ((sample5 + (3 * last_sample5)) >> 2);
9578  dst[28] = (Uint16) ((sample4 + (3 * last_sample4)) >> 2);
9579  dst[27] = (Uint16) ((sample3 + (3 * last_sample3)) >> 2);
9580  dst[26] = (Uint16) ((sample2 + (3 * last_sample2)) >> 2);
9581  dst[25] = (Uint16) ((sample1 + (3 * last_sample1)) >> 2);
9582  dst[24] = (Uint16) ((sample0 + (3 * last_sample0)) >> 2);
9583  dst[23] = (Uint16) ((sample7 + last_sample7) >> 1);
9584  dst[22] = (Uint16) ((sample6 + last_sample6) >> 1);
9585  dst[21] = (Uint16) ((sample5 + last_sample5) >> 1);
9586  dst[20] = (Uint16) ((sample4 + last_sample4) >> 1);
9587  dst[19] = (Uint16) ((sample3 + last_sample3) >> 1);
9588  dst[18] = (Uint16) ((sample2 + last_sample2) >> 1);
9589  dst[17] = (Uint16) ((sample1 + last_sample1) >> 1);
9590  dst[16] = (Uint16) ((sample0 + last_sample0) >> 1);
9591  dst[15] = (Uint16) (((3 * sample7) + last_sample7) >> 2);
9592  dst[14] = (Uint16) (((3 * sample6) + last_sample6) >> 2);
9593  dst[13] = (Uint16) (((3 * sample5) + last_sample5) >> 2);
9594  dst[12] = (Uint16) (((3 * sample4) + last_sample4) >> 2);
9595  dst[11] = (Uint16) (((3 * sample3) + last_sample3) >> 2);
9596  dst[10] = (Uint16) (((3 * sample2) + last_sample2) >> 2);
9597  dst[9] = (Uint16) (((3 * sample1) + last_sample1) >> 2);
9598  dst[8] = (Uint16) (((3 * sample0) + last_sample0) >> 2);
9599  dst[7] = (Uint16) sample7;
9600  dst[6] = (Uint16) sample6;
9601  dst[5] = (Uint16) sample5;
9602  dst[4] = (Uint16) sample4;
9603  dst[3] = (Uint16) sample3;
9604  dst[2] = (Uint16) sample2;
9605  dst[1] = (Uint16) sample1;
9606  dst[0] = (Uint16) sample0;
9607  last_sample7 = sample7;
9608  last_sample6 = sample6;
9609  last_sample5 = sample5;
9610  last_sample4 = sample4;
9611  last_sample3 = sample3;
9612  last_sample2 = sample2;
9613  last_sample1 = sample1;
9614  last_sample0 = sample0;
9615  dst -= 32;
9616  }
9617 
9618  cvt->len_cvt = dstsize;
9619  if (cvt->filters[++cvt->filter_index]) {
9620  cvt->filters[cvt->filter_index] (cvt, format);
9621  }
9622 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
Uint16
uint16_t Uint16
An unsigned 16-bit integer type.
Definition: SDL_stdinc.h:147
SDL_SwapLE16
#define SDL_SwapLE16(X)
Definition: SDL_endian.h:211
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Upsample_U16MSB_1c ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 4216 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_AudioCVT::rate_incr, SDL_SwapBE16, and SDLCALL.

4217 {
4218 #if DEBUG_CONVERT
4219  fprintf(stderr, "Upsample arbitrary (x%f) AUDIO_U16MSB, 1 channels.\n", cvt->rate_incr);
4220 #endif
4221 
4222  const int srcsize = cvt->len_cvt - 32;
4223  const int dstsize = (int) (((double)(cvt->len_cvt/2)) * cvt->rate_incr) * 2;
4224  register int eps = 0;
4225  Uint16 *dst = ((Uint16 *) (cvt->buf + dstsize)) - 1;
4226  const Uint16 *src = ((Uint16 *) (cvt->buf + cvt->len_cvt)) - 1;
4227  const Uint16 *target = ((const Uint16 *) cvt->buf);
4228  Uint16 sample0 = SDL_SwapBE16(src[0]);
4229  Uint16 last_sample0 = sample0;
4230  while (dst >= target) {
4231  dst[0] = SDL_SwapBE16(sample0);
4232  dst--;
4233  eps += srcsize;
4234  if ((eps << 1) >= dstsize) {
4235  src--;
4236  sample0 = (Uint16) ((((Sint32) SDL_SwapBE16(src[0])) + ((Sint32) last_sample0)) >> 1);
4237  last_sample0 = sample0;
4238  eps -= dstsize;
4239  }
4240  }
4241  cvt->len_cvt = dstsize;
4242  if (cvt->filters[++cvt->filter_index]) {
4243  cvt->filters[cvt->filter_index] (cvt, format);
4244  }
4245 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_SwapBE16
#define SDL_SwapBE16(X)
Definition: SDL_endian.h:215
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
SDL_AudioCVT::rate_incr
double rate_incr
Definition: SDL_audio.h:205
Uint16
uint16_t Uint16
An unsigned 16-bit integer type.
Definition: SDL_stdinc.h:147
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Upsample_U16MSB_1c_x2 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 10539 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_SwapBE16, and SDLCALL.

10540 {
10541 #if DEBUG_CONVERT
10542  fprintf(stderr, "Upsample (x2) AUDIO_U16MSB, 1 channels.\n");
10543 #endif
10544 
10545  const int dstsize = cvt->len_cvt * 2;
10546  Uint16 *dst = ((Uint16 *) (cvt->buf + dstsize)) - 1 * 2;
10547  const Uint16 *src = ((Uint16 *) (cvt->buf + cvt->len_cvt)) - 1;
10548  const Uint16 *target = ((const Uint16 *) cvt->buf);
10549  Sint32 last_sample0 = (Sint32) SDL_SwapBE16(src[0]);
10550  while (dst >= target) {
10551  const Sint32 sample0 = (Sint32) SDL_SwapBE16(src[0]);
10552  src--;
10553  dst[1] = (Uint16) ((sample0 + last_sample0) >> 1);
10554  dst[0] = (Uint16) sample0;
10555  last_sample0 = sample0;
10556  dst -= 2;
10557  }
10558 
10559  cvt->len_cvt = dstsize;
10560  if (cvt->filters[++cvt->filter_index]) {
10561  cvt->filters[cvt->filter_index] (cvt, format);
10562  }
10563 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_SwapBE16
#define SDL_SwapBE16(X)
Definition: SDL_endian.h:215
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
Uint16
uint16_t Uint16
An unsigned 16-bit integer type.
Definition: SDL_stdinc.h:147
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Upsample_U16MSB_1c_x4 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 10592 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_SwapBE16, and SDLCALL.

10593 {
10594 #if DEBUG_CONVERT
10595  fprintf(stderr, "Upsample (x4) AUDIO_U16MSB, 1 channels.\n");
10596 #endif
10597 
10598  const int dstsize = cvt->len_cvt * 4;
10599  Uint16 *dst = ((Uint16 *) (cvt->buf + dstsize)) - 1 * 4;
10600  const Uint16 *src = ((Uint16 *) (cvt->buf + cvt->len_cvt)) - 1;
10601  const Uint16 *target = ((const Uint16 *) cvt->buf);
10602  Sint32 last_sample0 = (Sint32) SDL_SwapBE16(src[0]);
10603  while (dst >= target) {
10604  const Sint32 sample0 = (Sint32) SDL_SwapBE16(src[0]);
10605  src--;
10606  dst[3] = (Uint16) ((sample0 + (3 * last_sample0)) >> 2);
10607  dst[2] = (Uint16) ((sample0 + last_sample0) >> 1);
10608  dst[1] = (Uint16) (((3 * sample0) + last_sample0) >> 2);
10609  dst[0] = (Uint16) sample0;
10610  last_sample0 = sample0;
10611  dst -= 4;
10612  }
10613 
10614  cvt->len_cvt = dstsize;
10615  if (cvt->filters[++cvt->filter_index]) {
10616  cvt->filters[cvt->filter_index] (cvt, format);
10617  }
10618 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_SwapBE16
#define SDL_SwapBE16(X)
Definition: SDL_endian.h:215
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
Uint16
uint16_t Uint16
An unsigned 16-bit integer type.
Definition: SDL_stdinc.h:147
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Upsample_U16MSB_2c ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 4280 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_AudioCVT::rate_incr, SDL_SwapBE16, and SDLCALL.

4281 {
4282 #if DEBUG_CONVERT
4283  fprintf(stderr, "Upsample arbitrary (x%f) AUDIO_U16MSB, 2 channels.\n", cvt->rate_incr);
4284 #endif
4285 
4286  const int srcsize = cvt->len_cvt - 64;
4287  const int dstsize = (int) (((double)(cvt->len_cvt/4)) * cvt->rate_incr) * 4;
4288  register int eps = 0;
4289  Uint16 *dst = ((Uint16 *) (cvt->buf + dstsize)) - 2;
4290  const Uint16 *src = ((Uint16 *) (cvt->buf + cvt->len_cvt)) - 2;
4291  const Uint16 *target = ((const Uint16 *) cvt->buf);
4292  Uint16 sample1 = SDL_SwapBE16(src[1]);
4293  Uint16 sample0 = SDL_SwapBE16(src[0]);
4294  Uint16 last_sample1 = sample1;
4295  Uint16 last_sample0 = sample0;
4296  while (dst >= target) {
4297  dst[1] = SDL_SwapBE16(sample1);
4298  dst[0] = SDL_SwapBE16(sample0);
4299  dst -= 2;
4300  eps += srcsize;
4301  if ((eps << 1) >= dstsize) {
4302  src -= 2;
4303  sample1 = (Uint16) ((((Sint32) SDL_SwapBE16(src[1])) + ((Sint32) last_sample1)) >> 1);
4304  sample0 = (Uint16) ((((Sint32) SDL_SwapBE16(src[0])) + ((Sint32) last_sample0)) >> 1);
4305  last_sample1 = sample1;
4306  last_sample0 = sample0;
4307  eps -= dstsize;
4308  }
4309  }
4310  cvt->len_cvt = dstsize;
4311  if (cvt->filters[++cvt->filter_index]) {
4312  cvt->filters[cvt->filter_index] (cvt, format);
4313  }
4314 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_SwapBE16
#define SDL_SwapBE16(X)
Definition: SDL_endian.h:215
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
SDL_AudioCVT::rate_incr
double rate_incr
Definition: SDL_audio.h:205
Uint16
uint16_t Uint16
An unsigned 16-bit integer type.
Definition: SDL_stdinc.h:147
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Upsample_U16MSB_2c_x2 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 10647 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_SwapBE16, and SDLCALL.

10648 {
10649 #if DEBUG_CONVERT
10650  fprintf(stderr, "Upsample (x2) AUDIO_U16MSB, 2 channels.\n");
10651 #endif
10652 
10653  const int dstsize = cvt->len_cvt * 2;
10654  Uint16 *dst = ((Uint16 *) (cvt->buf + dstsize)) - 2 * 2;
10655  const Uint16 *src = ((Uint16 *) (cvt->buf + cvt->len_cvt)) - 2;
10656  const Uint16 *target = ((const Uint16 *) cvt->buf);
10657  Sint32 last_sample1 = (Sint32) SDL_SwapBE16(src[1]);
10658  Sint32 last_sample0 = (Sint32) SDL_SwapBE16(src[0]);
10659  while (dst >= target) {
10660  const Sint32 sample1 = (Sint32) SDL_SwapBE16(src[1]);
10661  const Sint32 sample0 = (Sint32) SDL_SwapBE16(src[0]);
10662  src -= 2;
10663  dst[3] = (Uint16) ((sample1 + last_sample1) >> 1);
10664  dst[2] = (Uint16) ((sample0 + last_sample0) >> 1);
10665  dst[1] = (Uint16) sample1;
10666  dst[0] = (Uint16) sample0;
10667  last_sample1 = sample1;
10668  last_sample0 = sample0;
10669  dst -= 4;
10670  }
10671 
10672  cvt->len_cvt = dstsize;
10673  if (cvt->filters[++cvt->filter_index]) {
10674  cvt->filters[cvt->filter_index] (cvt, format);
10675  }
10676 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_SwapBE16
#define SDL_SwapBE16(X)
Definition: SDL_endian.h:215
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
Uint16
uint16_t Uint16
An unsigned 16-bit integer type.
Definition: SDL_stdinc.h:147
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Upsample_U16MSB_2c_x4 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 10709 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_SwapBE16, and SDLCALL.

10710 {
10711 #if DEBUG_CONVERT
10712  fprintf(stderr, "Upsample (x4) AUDIO_U16MSB, 2 channels.\n");
10713 #endif
10714 
10715  const int dstsize = cvt->len_cvt * 4;
10716  Uint16 *dst = ((Uint16 *) (cvt->buf + dstsize)) - 2 * 4;
10717  const Uint16 *src = ((Uint16 *) (cvt->buf + cvt->len_cvt)) - 2;
10718  const Uint16 *target = ((const Uint16 *) cvt->buf);
10719  Sint32 last_sample1 = (Sint32) SDL_SwapBE16(src[1]);
10720  Sint32 last_sample0 = (Sint32) SDL_SwapBE16(src[0]);
10721  while (dst >= target) {
10722  const Sint32 sample1 = (Sint32) SDL_SwapBE16(src[1]);
10723  const Sint32 sample0 = (Sint32) SDL_SwapBE16(src[0]);
10724  src -= 2;
10725  dst[7] = (Uint16) ((sample1 + (3 * last_sample1)) >> 2);
10726  dst[6] = (Uint16) ((sample0 + (3 * last_sample0)) >> 2);
10727  dst[5] = (Uint16) ((sample1 + last_sample1) >> 1);
10728  dst[4] = (Uint16) ((sample0 + last_sample0) >> 1);
10729  dst[3] = (Uint16) (((3 * sample1) + last_sample1) >> 2);
10730  dst[2] = (Uint16) (((3 * sample0) + last_sample0) >> 2);
10731  dst[1] = (Uint16) sample1;
10732  dst[0] = (Uint16) sample0;
10733  last_sample1 = sample1;
10734  last_sample0 = sample0;
10735  dst -= 8;
10736  }
10737 
10738  cvt->len_cvt = dstsize;
10739  if (cvt->filters[++cvt->filter_index]) {
10740  cvt->filters[cvt->filter_index] (cvt, format);
10741  }
10742 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_SwapBE16
#define SDL_SwapBE16(X)
Definition: SDL_endian.h:215
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
Uint16
uint16_t Uint16
An unsigned 16-bit integer type.
Definition: SDL_stdinc.h:147
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Upsample_U16MSB_4c ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 4354 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_AudioCVT::rate_incr, SDL_SwapBE16, and SDLCALL.

4355 {
4356 #if DEBUG_CONVERT
4357  fprintf(stderr, "Upsample arbitrary (x%f) AUDIO_U16MSB, 4 channels.\n", cvt->rate_incr);
4358 #endif
4359 
4360  const int srcsize = cvt->len_cvt - 128;
4361  const int dstsize = (int) (((double)(cvt->len_cvt/8)) * cvt->rate_incr) * 8;
4362  register int eps = 0;
4363  Uint16 *dst = ((Uint16 *) (cvt->buf + dstsize)) - 4;
4364  const Uint16 *src = ((Uint16 *) (cvt->buf + cvt->len_cvt)) - 4;
4365  const Uint16 *target = ((const Uint16 *) cvt->buf);
4366  Uint16 sample3 = SDL_SwapBE16(src[3]);
4367  Uint16 sample2 = SDL_SwapBE16(src[2]);
4368  Uint16 sample1 = SDL_SwapBE16(src[1]);
4369  Uint16 sample0 = SDL_SwapBE16(src[0]);
4370  Uint16 last_sample3 = sample3;
4371  Uint16 last_sample2 = sample2;
4372  Uint16 last_sample1 = sample1;
4373  Uint16 last_sample0 = sample0;
4374  while (dst >= target) {
4375  dst[3] = SDL_SwapBE16(sample3);
4376  dst[2] = SDL_SwapBE16(sample2);
4377  dst[1] = SDL_SwapBE16(sample1);
4378  dst[0] = SDL_SwapBE16(sample0);
4379  dst -= 4;
4380  eps += srcsize;
4381  if ((eps << 1) >= dstsize) {
4382  src -= 4;
4383  sample3 = (Uint16) ((((Sint32) SDL_SwapBE16(src[3])) + ((Sint32) last_sample3)) >> 1);
4384  sample2 = (Uint16) ((((Sint32) SDL_SwapBE16(src[2])) + ((Sint32) last_sample2)) >> 1);
4385  sample1 = (Uint16) ((((Sint32) SDL_SwapBE16(src[1])) + ((Sint32) last_sample1)) >> 1);
4386  sample0 = (Uint16) ((((Sint32) SDL_SwapBE16(src[0])) + ((Sint32) last_sample0)) >> 1);
4387  last_sample3 = sample3;
4388  last_sample2 = sample2;
4389  last_sample1 = sample1;
4390  last_sample0 = sample0;
4391  eps -= dstsize;
4392  }
4393  }
4394  cvt->len_cvt = dstsize;
4395  if (cvt->filters[++cvt->filter_index]) {
4396  cvt->filters[cvt->filter_index] (cvt, format);
4397  }
4398 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_SwapBE16
#define SDL_SwapBE16(X)
Definition: SDL_endian.h:215
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
SDL_AudioCVT::rate_incr
double rate_incr
Definition: SDL_audio.h:205
Uint16
uint16_t Uint16
An unsigned 16-bit integer type.
Definition: SDL_stdinc.h:147
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Upsample_U16MSB_4c_x2 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 10775 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_SwapBE16, and SDLCALL.

10776 {
10777 #if DEBUG_CONVERT
10778  fprintf(stderr, "Upsample (x2) AUDIO_U16MSB, 4 channels.\n");
10779 #endif
10780 
10781  const int dstsize = cvt->len_cvt * 2;
10782  Uint16 *dst = ((Uint16 *) (cvt->buf + dstsize)) - 4 * 2;
10783  const Uint16 *src = ((Uint16 *) (cvt->buf + cvt->len_cvt)) - 4;
10784  const Uint16 *target = ((const Uint16 *) cvt->buf);
10785  Sint32 last_sample3 = (Sint32) SDL_SwapBE16(src[3]);
10786  Sint32 last_sample2 = (Sint32) SDL_SwapBE16(src[2]);
10787  Sint32 last_sample1 = (Sint32) SDL_SwapBE16(src[1]);
10788  Sint32 last_sample0 = (Sint32) SDL_SwapBE16(src[0]);
10789  while (dst >= target) {
10790  const Sint32 sample3 = (Sint32) SDL_SwapBE16(src[3]);
10791  const Sint32 sample2 = (Sint32) SDL_SwapBE16(src[2]);
10792  const Sint32 sample1 = (Sint32) SDL_SwapBE16(src[1]);
10793  const Sint32 sample0 = (Sint32) SDL_SwapBE16(src[0]);
10794  src -= 4;
10795  dst[7] = (Uint16) ((sample3 + last_sample3) >> 1);
10796  dst[6] = (Uint16) ((sample2 + last_sample2) >> 1);
10797  dst[5] = (Uint16) ((sample1 + last_sample1) >> 1);
10798  dst[4] = (Uint16) ((sample0 + last_sample0) >> 1);
10799  dst[3] = (Uint16) sample3;
10800  dst[2] = (Uint16) sample2;
10801  dst[1] = (Uint16) sample1;
10802  dst[0] = (Uint16) sample0;
10803  last_sample3 = sample3;
10804  last_sample2 = sample2;
10805  last_sample1 = sample1;
10806  last_sample0 = sample0;
10807  dst -= 8;
10808  }
10809 
10810  cvt->len_cvt = dstsize;
10811  if (cvt->filters[++cvt->filter_index]) {
10812  cvt->filters[cvt->filter_index] (cvt, format);
10813  }
10814 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_SwapBE16
#define SDL_SwapBE16(X)
Definition: SDL_endian.h:215
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
Uint16
uint16_t Uint16
An unsigned 16-bit integer type.
Definition: SDL_stdinc.h:147
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Upsample_U16MSB_4c_x4 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 10855 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_SwapBE16, and SDLCALL.

10856 {
10857 #if DEBUG_CONVERT
10858  fprintf(stderr, "Upsample (x4) AUDIO_U16MSB, 4 channels.\n");
10859 #endif
10860 
10861  const int dstsize = cvt->len_cvt * 4;
10862  Uint16 *dst = ((Uint16 *) (cvt->buf + dstsize)) - 4 * 4;
10863  const Uint16 *src = ((Uint16 *) (cvt->buf + cvt->len_cvt)) - 4;
10864  const Uint16 *target = ((const Uint16 *) cvt->buf);
10865  Sint32 last_sample3 = (Sint32) SDL_SwapBE16(src[3]);
10866  Sint32 last_sample2 = (Sint32) SDL_SwapBE16(src[2]);
10867  Sint32 last_sample1 = (Sint32) SDL_SwapBE16(src[1]);
10868  Sint32 last_sample0 = (Sint32) SDL_SwapBE16(src[0]);
10869  while (dst >= target) {
10870  const Sint32 sample3 = (Sint32) SDL_SwapBE16(src[3]);
10871  const Sint32 sample2 = (Sint32) SDL_SwapBE16(src[2]);
10872  const Sint32 sample1 = (Sint32) SDL_SwapBE16(src[1]);
10873  const Sint32 sample0 = (Sint32) SDL_SwapBE16(src[0]);
10874  src -= 4;
10875  dst[15] = (Uint16) ((sample3 + (3 * last_sample3)) >> 2);
10876  dst[14] = (Uint16) ((sample2 + (3 * last_sample2)) >> 2);
10877  dst[13] = (Uint16) ((sample1 + (3 * last_sample1)) >> 2);
10878  dst[12] = (Uint16) ((sample0 + (3 * last_sample0)) >> 2);
10879  dst[11] = (Uint16) ((sample3 + last_sample3) >> 1);
10880  dst[10] = (Uint16) ((sample2 + last_sample2) >> 1);
10881  dst[9] = (Uint16) ((sample1 + last_sample1) >> 1);
10882  dst[8] = (Uint16) ((sample0 + last_sample0) >> 1);
10883  dst[7] = (Uint16) (((3 * sample3) + last_sample3) >> 2);
10884  dst[6] = (Uint16) (((3 * sample2) + last_sample2) >> 2);
10885  dst[5] = (Uint16) (((3 * sample1) + last_sample1) >> 2);
10886  dst[4] = (Uint16) (((3 * sample0) + last_sample0) >> 2);
10887  dst[3] = (Uint16) sample3;
10888  dst[2] = (Uint16) sample2;
10889  dst[1] = (Uint16) sample1;
10890  dst[0] = (Uint16) sample0;
10891  last_sample3 = sample3;
10892  last_sample2 = sample2;
10893  last_sample1 = sample1;
10894  last_sample0 = sample0;
10895  dst -= 16;
10896  }
10897 
10898  cvt->len_cvt = dstsize;
10899  if (cvt->filters[++cvt->filter_index]) {
10900  cvt->filters[cvt->filter_index] (cvt, format);
10901  }
10902 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_SwapBE16
#define SDL_SwapBE16(X)
Definition: SDL_endian.h:215
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
Uint16
uint16_t Uint16
An unsigned 16-bit integer type.
Definition: SDL_stdinc.h:147
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Upsample_U16MSB_6c ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 4448 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_AudioCVT::rate_incr, SDL_SwapBE16, and SDLCALL.

4449 {
4450 #if DEBUG_CONVERT
4451  fprintf(stderr, "Upsample arbitrary (x%f) AUDIO_U16MSB, 6 channels.\n", cvt->rate_incr);
4452 #endif
4453 
4454  const int srcsize = cvt->len_cvt - 192;
4455  const int dstsize = (int) (((double)(cvt->len_cvt/12)) * cvt->rate_incr) * 12;
4456  register int eps = 0;
4457  Uint16 *dst = ((Uint16 *) (cvt->buf + dstsize)) - 6;
4458  const Uint16 *src = ((Uint16 *) (cvt->buf + cvt->len_cvt)) - 6;
4459  const Uint16 *target = ((const Uint16 *) cvt->buf);
4460  Uint16 sample5 = SDL_SwapBE16(src[5]);
4461  Uint16 sample4 = SDL_SwapBE16(src[4]);
4462  Uint16 sample3 = SDL_SwapBE16(src[3]);
4463  Uint16 sample2 = SDL_SwapBE16(src[2]);
4464  Uint16 sample1 = SDL_SwapBE16(src[1]);
4465  Uint16 sample0 = SDL_SwapBE16(src[0]);
4466  Uint16 last_sample5 = sample5;
4467  Uint16 last_sample4 = sample4;
4468  Uint16 last_sample3 = sample3;
4469  Uint16 last_sample2 = sample2;
4470  Uint16 last_sample1 = sample1;
4471  Uint16 last_sample0 = sample0;
4472  while (dst >= target) {
4473  dst[5] = SDL_SwapBE16(sample5);
4474  dst[4] = SDL_SwapBE16(sample4);
4475  dst[3] = SDL_SwapBE16(sample3);
4476  dst[2] = SDL_SwapBE16(sample2);
4477  dst[1] = SDL_SwapBE16(sample1);
4478  dst[0] = SDL_SwapBE16(sample0);
4479  dst -= 6;
4480  eps += srcsize;
4481  if ((eps << 1) >= dstsize) {
4482  src -= 6;
4483  sample5 = (Uint16) ((((Sint32) SDL_SwapBE16(src[5])) + ((Sint32) last_sample5)) >> 1);
4484  sample4 = (Uint16) ((((Sint32) SDL_SwapBE16(src[4])) + ((Sint32) last_sample4)) >> 1);
4485  sample3 = (Uint16) ((((Sint32) SDL_SwapBE16(src[3])) + ((Sint32) last_sample3)) >> 1);
4486  sample2 = (Uint16) ((((Sint32) SDL_SwapBE16(src[2])) + ((Sint32) last_sample2)) >> 1);
4487  sample1 = (Uint16) ((((Sint32) SDL_SwapBE16(src[1])) + ((Sint32) last_sample1)) >> 1);
4488  sample0 = (Uint16) ((((Sint32) SDL_SwapBE16(src[0])) + ((Sint32) last_sample0)) >> 1);
4489  last_sample5 = sample5;
4490  last_sample4 = sample4;
4491  last_sample3 = sample3;
4492  last_sample2 = sample2;
4493  last_sample1 = sample1;
4494  last_sample0 = sample0;
4495  eps -= dstsize;
4496  }
4497  }
4498  cvt->len_cvt = dstsize;
4499  if (cvt->filters[++cvt->filter_index]) {
4500  cvt->filters[cvt->filter_index] (cvt, format);
4501  }
4502 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_SwapBE16
#define SDL_SwapBE16(X)
Definition: SDL_endian.h:215
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
SDL_AudioCVT::rate_incr
double rate_incr
Definition: SDL_audio.h:205
Uint16
uint16_t Uint16
An unsigned 16-bit integer type.
Definition: SDL_stdinc.h:147
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Upsample_U16MSB_6c_x2 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 10943 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_SwapBE16, and SDLCALL.

10944 {
10945 #if DEBUG_CONVERT
10946  fprintf(stderr, "Upsample (x2) AUDIO_U16MSB, 6 channels.\n");
10947 #endif
10948 
10949  const int dstsize = cvt->len_cvt * 2;
10950  Uint16 *dst = ((Uint16 *) (cvt->buf + dstsize)) - 6 * 2;
10951  const Uint16 *src = ((Uint16 *) (cvt->buf + cvt->len_cvt)) - 6;
10952  const Uint16 *target = ((const Uint16 *) cvt->buf);
10953  Sint32 last_sample5 = (Sint32) SDL_SwapBE16(src[5]);
10954  Sint32 last_sample4 = (Sint32) SDL_SwapBE16(src[4]);
10955  Sint32 last_sample3 = (Sint32) SDL_SwapBE16(src[3]);
10956  Sint32 last_sample2 = (Sint32) SDL_SwapBE16(src[2]);
10957  Sint32 last_sample1 = (Sint32) SDL_SwapBE16(src[1]);
10958  Sint32 last_sample0 = (Sint32) SDL_SwapBE16(src[0]);
10959  while (dst >= target) {
10960  const Sint32 sample5 = (Sint32) SDL_SwapBE16(src[5]);
10961  const Sint32 sample4 = (Sint32) SDL_SwapBE16(src[4]);
10962  const Sint32 sample3 = (Sint32) SDL_SwapBE16(src[3]);
10963  const Sint32 sample2 = (Sint32) SDL_SwapBE16(src[2]);
10964  const Sint32 sample1 = (Sint32) SDL_SwapBE16(src[1]);
10965  const Sint32 sample0 = (Sint32) SDL_SwapBE16(src[0]);
10966  src -= 6;
10967  dst[11] = (Uint16) ((sample5 + last_sample5) >> 1);
10968  dst[10] = (Uint16) ((sample4 + last_sample4) >> 1);
10969  dst[9] = (Uint16) ((sample3 + last_sample3) >> 1);
10970  dst[8] = (Uint16) ((sample2 + last_sample2) >> 1);
10971  dst[7] = (Uint16) ((sample1 + last_sample1) >> 1);
10972  dst[6] = (Uint16) ((sample0 + last_sample0) >> 1);
10973  dst[5] = (Uint16) sample5;
10974  dst[4] = (Uint16) sample4;
10975  dst[3] = (Uint16) sample3;
10976  dst[2] = (Uint16) sample2;
10977  dst[1] = (Uint16) sample1;
10978  dst[0] = (Uint16) sample0;
10979  last_sample5 = sample5;
10980  last_sample4 = sample4;
10981  last_sample3 = sample3;
10982  last_sample2 = sample2;
10983  last_sample1 = sample1;
10984  last_sample0 = sample0;
10985  dst -= 12;
10986  }
10987 
10988  cvt->len_cvt = dstsize;
10989  if (cvt->filters[++cvt->filter_index]) {
10990  cvt->filters[cvt->filter_index] (cvt, format);
10991  }
10992 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_SwapBE16
#define SDL_SwapBE16(X)
Definition: SDL_endian.h:215
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
Uint16
uint16_t Uint16
An unsigned 16-bit integer type.
Definition: SDL_stdinc.h:147
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Upsample_U16MSB_6c_x4 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 11041 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_SwapBE16, and SDLCALL.

11042 {
11043 #if DEBUG_CONVERT
11044  fprintf(stderr, "Upsample (x4) AUDIO_U16MSB, 6 channels.\n");
11045 #endif
11046 
11047  const int dstsize = cvt->len_cvt * 4;
11048  Uint16 *dst = ((Uint16 *) (cvt->buf + dstsize)) - 6 * 4;
11049  const Uint16 *src = ((Uint16 *) (cvt->buf + cvt->len_cvt)) - 6;
11050  const Uint16 *target = ((const Uint16 *) cvt->buf);
11051  Sint32 last_sample5 = (Sint32) SDL_SwapBE16(src[5]);
11052  Sint32 last_sample4 = (Sint32) SDL_SwapBE16(src[4]);
11053  Sint32 last_sample3 = (Sint32) SDL_SwapBE16(src[3]);
11054  Sint32 last_sample2 = (Sint32) SDL_SwapBE16(src[2]);
11055  Sint32 last_sample1 = (Sint32) SDL_SwapBE16(src[1]);
11056  Sint32 last_sample0 = (Sint32) SDL_SwapBE16(src[0]);
11057  while (dst >= target) {
11058  const Sint32 sample5 = (Sint32) SDL_SwapBE16(src[5]);
11059  const Sint32 sample4 = (Sint32) SDL_SwapBE16(src[4]);
11060  const Sint32 sample3 = (Sint32) SDL_SwapBE16(src[3]);
11061  const Sint32 sample2 = (Sint32) SDL_SwapBE16(src[2]);
11062  const Sint32 sample1 = (Sint32) SDL_SwapBE16(src[1]);
11063  const Sint32 sample0 = (Sint32) SDL_SwapBE16(src[0]);
11064  src -= 6;
11065  dst[23] = (Uint16) ((sample5 + (3 * last_sample5)) >> 2);
11066  dst[22] = (Uint16) ((sample4 + (3 * last_sample4)) >> 2);
11067  dst[21] = (Uint16) ((sample3 + (3 * last_sample3)) >> 2);
11068  dst[20] = (Uint16) ((sample2 + (3 * last_sample2)) >> 2);
11069  dst[19] = (Uint16) ((sample1 + (3 * last_sample1)) >> 2);
11070  dst[18] = (Uint16) ((sample0 + (3 * last_sample0)) >> 2);
11071  dst[17] = (Uint16) ((sample5 + last_sample5) >> 1);
11072  dst[16] = (Uint16) ((sample4 + last_sample4) >> 1);
11073  dst[15] = (Uint16) ((sample3 + last_sample3) >> 1);
11074  dst[14] = (Uint16) ((sample2 + last_sample2) >> 1);
11075  dst[13] = (Uint16) ((sample1 + last_sample1) >> 1);
11076  dst[12] = (Uint16) ((sample0 + last_sample0) >> 1);
11077  dst[11] = (Uint16) (((3 * sample5) + last_sample5) >> 2);
11078  dst[10] = (Uint16) (((3 * sample4) + last_sample4) >> 2);
11079  dst[9] = (Uint16) (((3 * sample3) + last_sample3) >> 2);
11080  dst[8] = (Uint16) (((3 * sample2) + last_sample2) >> 2);
11081  dst[7] = (Uint16) (((3 * sample1) + last_sample1) >> 2);
11082  dst[6] = (Uint16) (((3 * sample0) + last_sample0) >> 2);
11083  dst[5] = (Uint16) sample5;
11084  dst[4] = (Uint16) sample4;
11085  dst[3] = (Uint16) sample3;
11086  dst[2] = (Uint16) sample2;
11087  dst[1] = (Uint16) sample1;
11088  dst[0] = (Uint16) sample0;
11089  last_sample5 = sample5;
11090  last_sample4 = sample4;
11091  last_sample3 = sample3;
11092  last_sample2 = sample2;
11093  last_sample1 = sample1;
11094  last_sample0 = sample0;
11095  dst -= 24;
11096  }
11097 
11098  cvt->len_cvt = dstsize;
11099  if (cvt->filters[++cvt->filter_index]) {
11100  cvt->filters[cvt->filter_index] (cvt, format);
11101  }
11102 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_SwapBE16
#define SDL_SwapBE16(X)
Definition: SDL_endian.h:215
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
Uint16
uint16_t Uint16
An unsigned 16-bit integer type.
Definition: SDL_stdinc.h:147
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Upsample_U16MSB_8c ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 4562 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_AudioCVT::rate_incr, SDL_SwapBE16, and SDLCALL.

4563 {
4564 #if DEBUG_CONVERT
4565  fprintf(stderr, "Upsample arbitrary (x%f) AUDIO_U16MSB, 8 channels.\n", cvt->rate_incr);
4566 #endif
4567 
4568  const int srcsize = cvt->len_cvt - 256;
4569  const int dstsize = (int) (((double)(cvt->len_cvt/16)) * cvt->rate_incr) * 16;
4570  register int eps = 0;
4571  Uint16 *dst = ((Uint16 *) (cvt->buf + dstsize)) - 8;
4572  const Uint16 *src = ((Uint16 *) (cvt->buf + cvt->len_cvt)) - 8;
4573  const Uint16 *target = ((const Uint16 *) cvt->buf);
4574  Uint16 sample7 = SDL_SwapBE16(src[7]);
4575  Uint16 sample6 = SDL_SwapBE16(src[6]);
4576  Uint16 sample5 = SDL_SwapBE16(src[5]);
4577  Uint16 sample4 = SDL_SwapBE16(src[4]);
4578  Uint16 sample3 = SDL_SwapBE16(src[3]);
4579  Uint16 sample2 = SDL_SwapBE16(src[2]);
4580  Uint16 sample1 = SDL_SwapBE16(src[1]);
4581  Uint16 sample0 = SDL_SwapBE16(src[0]);
4582  Uint16 last_sample7 = sample7;
4583  Uint16 last_sample6 = sample6;
4584  Uint16 last_sample5 = sample5;
4585  Uint16 last_sample4 = sample4;
4586  Uint16 last_sample3 = sample3;
4587  Uint16 last_sample2 = sample2;
4588  Uint16 last_sample1 = sample1;
4589  Uint16 last_sample0 = sample0;
4590  while (dst >= target) {
4591  dst[7] = SDL_SwapBE16(sample7);
4592  dst[6] = SDL_SwapBE16(sample6);
4593  dst[5] = SDL_SwapBE16(sample5);
4594  dst[4] = SDL_SwapBE16(sample4);
4595  dst[3] = SDL_SwapBE16(sample3);
4596  dst[2] = SDL_SwapBE16(sample2);
4597  dst[1] = SDL_SwapBE16(sample1);
4598  dst[0] = SDL_SwapBE16(sample0);
4599  dst -= 8;
4600  eps += srcsize;
4601  if ((eps << 1) >= dstsize) {
4602  src -= 8;
4603  sample7 = (Uint16) ((((Sint32) SDL_SwapBE16(src[7])) + ((Sint32) last_sample7)) >> 1);
4604  sample6 = (Uint16) ((((Sint32) SDL_SwapBE16(src[6])) + ((Sint32) last_sample6)) >> 1);
4605  sample5 = (Uint16) ((((Sint32) SDL_SwapBE16(src[5])) + ((Sint32) last_sample5)) >> 1);
4606  sample4 = (Uint16) ((((Sint32) SDL_SwapBE16(src[4])) + ((Sint32) last_sample4)) >> 1);
4607  sample3 = (Uint16) ((((Sint32) SDL_SwapBE16(src[3])) + ((Sint32) last_sample3)) >> 1);
4608  sample2 = (Uint16) ((((Sint32) SDL_SwapBE16(src[2])) + ((Sint32) last_sample2)) >> 1);
4609  sample1 = (Uint16) ((((Sint32) SDL_SwapBE16(src[1])) + ((Sint32) last_sample1)) >> 1);
4610  sample0 = (Uint16) ((((Sint32) SDL_SwapBE16(src[0])) + ((Sint32) last_sample0)) >> 1);
4611  last_sample7 = sample7;
4612  last_sample6 = sample6;
4613  last_sample5 = sample5;
4614  last_sample4 = sample4;
4615  last_sample3 = sample3;
4616  last_sample2 = sample2;
4617  last_sample1 = sample1;
4618  last_sample0 = sample0;
4619  eps -= dstsize;
4620  }
4621  }
4622  cvt->len_cvt = dstsize;
4623  if (cvt->filters[++cvt->filter_index]) {
4624  cvt->filters[cvt->filter_index] (cvt, format);
4625  }
4626 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_SwapBE16
#define SDL_SwapBE16(X)
Definition: SDL_endian.h:215
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
SDL_AudioCVT::rate_incr
double rate_incr
Definition: SDL_audio.h:205
Uint16
uint16_t Uint16
An unsigned 16-bit integer type.
Definition: SDL_stdinc.h:147
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Upsample_U16MSB_8c_x2 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 11151 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_SwapBE16, and SDLCALL.

11152 {
11153 #if DEBUG_CONVERT
11154  fprintf(stderr, "Upsample (x2) AUDIO_U16MSB, 8 channels.\n");
11155 #endif
11156 
11157  const int dstsize = cvt->len_cvt * 2;
11158  Uint16 *dst = ((Uint16 *) (cvt->buf + dstsize)) - 8 * 2;
11159  const Uint16 *src = ((Uint16 *) (cvt->buf + cvt->len_cvt)) - 8;
11160  const Uint16 *target = ((const Uint16 *) cvt->buf);
11161  Sint32 last_sample7 = (Sint32) SDL_SwapBE16(src[7]);
11162  Sint32 last_sample6 = (Sint32) SDL_SwapBE16(src[6]);
11163  Sint32 last_sample5 = (Sint32) SDL_SwapBE16(src[5]);
11164  Sint32 last_sample4 = (Sint32) SDL_SwapBE16(src[4]);
11165  Sint32 last_sample3 = (Sint32) SDL_SwapBE16(src[3]);
11166  Sint32 last_sample2 = (Sint32) SDL_SwapBE16(src[2]);
11167  Sint32 last_sample1 = (Sint32) SDL_SwapBE16(src[1]);
11168  Sint32 last_sample0 = (Sint32) SDL_SwapBE16(src[0]);
11169  while (dst >= target) {
11170  const Sint32 sample7 = (Sint32) SDL_SwapBE16(src[7]);
11171  const Sint32 sample6 = (Sint32) SDL_SwapBE16(src[6]);
11172  const Sint32 sample5 = (Sint32) SDL_SwapBE16(src[5]);
11173  const Sint32 sample4 = (Sint32) SDL_SwapBE16(src[4]);
11174  const Sint32 sample3 = (Sint32) SDL_SwapBE16(src[3]);
11175  const Sint32 sample2 = (Sint32) SDL_SwapBE16(src[2]);
11176  const Sint32 sample1 = (Sint32) SDL_SwapBE16(src[1]);
11177  const Sint32 sample0 = (Sint32) SDL_SwapBE16(src[0]);
11178  src -= 8;
11179  dst[15] = (Uint16) ((sample7 + last_sample7) >> 1);
11180  dst[14] = (Uint16) ((sample6 + last_sample6) >> 1);
11181  dst[13] = (Uint16) ((sample5 + last_sample5) >> 1);
11182  dst[12] = (Uint16) ((sample4 + last_sample4) >> 1);
11183  dst[11] = (Uint16) ((sample3 + last_sample3) >> 1);
11184  dst[10] = (Uint16) ((sample2 + last_sample2) >> 1);
11185  dst[9] = (Uint16) ((sample1 + last_sample1) >> 1);
11186  dst[8] = (Uint16) ((sample0 + last_sample0) >> 1);
11187  dst[7] = (Uint16) sample7;
11188  dst[6] = (Uint16) sample6;
11189  dst[5] = (Uint16) sample5;
11190  dst[4] = (Uint16) sample4;
11191  dst[3] = (Uint16) sample3;
11192  dst[2] = (Uint16) sample2;
11193  dst[1] = (Uint16) sample1;
11194  dst[0] = (Uint16) sample0;
11195  last_sample7 = sample7;
11196  last_sample6 = sample6;
11197  last_sample5 = sample5;
11198  last_sample4 = sample4;
11199  last_sample3 = sample3;
11200  last_sample2 = sample2;
11201  last_sample1 = sample1;
11202  last_sample0 = sample0;
11203  dst -= 16;
11204  }
11205 
11206  cvt->len_cvt = dstsize;
11207  if (cvt->filters[++cvt->filter_index]) {
11208  cvt->filters[cvt->filter_index] (cvt, format);
11209  }
11210 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_SwapBE16
#define SDL_SwapBE16(X)
Definition: SDL_endian.h:215
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
Uint16
uint16_t Uint16
An unsigned 16-bit integer type.
Definition: SDL_stdinc.h:147
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Upsample_U16MSB_8c_x4 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 11267 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_SwapBE16, and SDLCALL.

11268 {
11269 #if DEBUG_CONVERT
11270  fprintf(stderr, "Upsample (x4) AUDIO_U16MSB, 8 channels.\n");
11271 #endif
11272 
11273  const int dstsize = cvt->len_cvt * 4;
11274  Uint16 *dst = ((Uint16 *) (cvt->buf + dstsize)) - 8 * 4;
11275  const Uint16 *src = ((Uint16 *) (cvt->buf + cvt->len_cvt)) - 8;
11276  const Uint16 *target = ((const Uint16 *) cvt->buf);
11277  Sint32 last_sample7 = (Sint32) SDL_SwapBE16(src[7]);
11278  Sint32 last_sample6 = (Sint32) SDL_SwapBE16(src[6]);
11279  Sint32 last_sample5 = (Sint32) SDL_SwapBE16(src[5]);
11280  Sint32 last_sample4 = (Sint32) SDL_SwapBE16(src[4]);
11281  Sint32 last_sample3 = (Sint32) SDL_SwapBE16(src[3]);
11282  Sint32 last_sample2 = (Sint32) SDL_SwapBE16(src[2]);
11283  Sint32 last_sample1 = (Sint32) SDL_SwapBE16(src[1]);
11284  Sint32 last_sample0 = (Sint32) SDL_SwapBE16(src[0]);
11285  while (dst >= target) {
11286  const Sint32 sample7 = (Sint32) SDL_SwapBE16(src[7]);
11287  const Sint32 sample6 = (Sint32) SDL_SwapBE16(src[6]);
11288  const Sint32 sample5 = (Sint32) SDL_SwapBE16(src[5]);
11289  const Sint32 sample4 = (Sint32) SDL_SwapBE16(src[4]);
11290  const Sint32 sample3 = (Sint32) SDL_SwapBE16(src[3]);
11291  const Sint32 sample2 = (Sint32) SDL_SwapBE16(src[2]);
11292  const Sint32 sample1 = (Sint32) SDL_SwapBE16(src[1]);
11293  const Sint32 sample0 = (Sint32) SDL_SwapBE16(src[0]);
11294  src -= 8;
11295  dst[31] = (Uint16) ((sample7 + (3 * last_sample7)) >> 2);
11296  dst[30] = (Uint16) ((sample6 + (3 * last_sample6)) >> 2);
11297  dst[29] = (Uint16) ((sample5 + (3 * last_sample5)) >> 2);
11298  dst[28] = (Uint16) ((sample4 + (3 * last_sample4)) >> 2);
11299  dst[27] = (Uint16) ((sample3 + (3 * last_sample3)) >> 2);
11300  dst[26] = (Uint16) ((sample2 + (3 * last_sample2)) >> 2);
11301  dst[25] = (Uint16) ((sample1 + (3 * last_sample1)) >> 2);
11302  dst[24] = (Uint16) ((sample0 + (3 * last_sample0)) >> 2);
11303  dst[23] = (Uint16) ((sample7 + last_sample7) >> 1);
11304  dst[22] = (Uint16) ((sample6 + last_sample6) >> 1);
11305  dst[21] = (Uint16) ((sample5 + last_sample5) >> 1);
11306  dst[20] = (Uint16) ((sample4 + last_sample4) >> 1);
11307  dst[19] = (Uint16) ((sample3 + last_sample3) >> 1);
11308  dst[18] = (Uint16) ((sample2 + last_sample2) >> 1);
11309  dst[17] = (Uint16) ((sample1 + last_sample1) >> 1);
11310  dst[16] = (Uint16) ((sample0 + last_sample0) >> 1);
11311  dst[15] = (Uint16) (((3 * sample7) + last_sample7) >> 2);
11312  dst[14] = (Uint16) (((3 * sample6) + last_sample6) >> 2);
11313  dst[13] = (Uint16) (((3 * sample5) + last_sample5) >> 2);
11314  dst[12] = (Uint16) (((3 * sample4) + last_sample4) >> 2);
11315  dst[11] = (Uint16) (((3 * sample3) + last_sample3) >> 2);
11316  dst[10] = (Uint16) (((3 * sample2) + last_sample2) >> 2);
11317  dst[9] = (Uint16) (((3 * sample1) + last_sample1) >> 2);
11318  dst[8] = (Uint16) (((3 * sample0) + last_sample0) >> 2);
11319  dst[7] = (Uint16) sample7;
11320  dst[6] = (Uint16) sample6;
11321  dst[5] = (Uint16) sample5;
11322  dst[4] = (Uint16) sample4;
11323  dst[3] = (Uint16) sample3;
11324  dst[2] = (Uint16) sample2;
11325  dst[1] = (Uint16) sample1;
11326  dst[0] = (Uint16) sample0;
11327  last_sample7 = sample7;
11328  last_sample6 = sample6;
11329  last_sample5 = sample5;
11330  last_sample4 = sample4;
11331  last_sample3 = sample3;
11332  last_sample2 = sample2;
11333  last_sample1 = sample1;
11334  last_sample0 = sample0;
11335  dst -= 32;
11336  }
11337 
11338  cvt->len_cvt = dstsize;
11339  if (cvt->filters[++cvt->filter_index]) {
11340  cvt->filters[cvt->filter_index] (cvt, format);
11341  }
11342 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_SwapBE16
#define SDL_SwapBE16(X)
Definition: SDL_endian.h:215
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
target
GLenum target
Definition: SDL_opengl_glext.h:1551
Sint32
int32_t Sint32
A signed 32-bit integer type.
Definition: SDL_stdinc.h:151
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
Uint16
uint16_t Uint16
An unsigned 16-bit integer type.
Definition: SDL_stdinc.h:147
src
GLenum src
Definition: SDL_opengl_glext.h:1737
static void SDL_Upsample_U8_1c ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 2296 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_AudioCVT::rate_incr, and SDLCALL.

2297 {
2298 #if DEBUG_CONVERT
2299  fprintf(stderr, "Upsample arbitrary (x%f) AUDIO_U8, 1 channels.\n", cvt->rate_incr);
2300 #endif
2301 
2302  const int srcsize = cvt->len_cvt - 16;
2303  const int dstsize = (int) (((double)(cvt->len_cvt/1)) * cvt->rate_incr) * 1;
2304  register int eps = 0;
2305  Uint8 *dst = ((Uint8 *) (cvt->buf + dstsize)) - 1;
2306  const Uint8 *src = ((Uint8 *) (cvt->buf + cvt->len_cvt)) - 1;
2307  const Uint8 *target = ((const Uint8 *) cvt->buf);
2308  Uint8 sample0 = src[0];
2309  Uint8 last_sample0 = sample0;
2310  while (dst >= target) {
2311  dst[0] = sample0;
2312  dst--;
2313  eps += srcsize;
2314  if ((eps << 1) >= dstsize) {
2315  src--;
2316  sample0 = (Uint8) ((((Sint16) src[0]) + ((Sint16) last_sample0)) >> 1);
2317  last_sample0 = sample0;
2318  eps -= dstsize;
2319  }
2320  }
2321  cvt->len_cvt = dstsize;
2322  if (cvt->filters[++cvt->filter_index]) {
2323  cvt->filters[cvt->filter_index] (cvt, format);
2324  }
2325 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
Uint8
uint8_t Uint8
An unsigned 8-bit integer type.
Definition: SDL_stdinc.h:139
target
GLenum target
Definition: SDL_opengl_glext.h:1551
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
SDL_AudioCVT::rate_incr
double rate_incr
Definition: SDL_audio.h:205
src
GLenum src
Definition: SDL_opengl_glext.h:1737
Sint16
int16_t Sint16
A signed 16-bit integer type.
Definition: SDL_stdinc.h:143
static void SDL_Upsample_U8_1c_x2 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 7099 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, and SDLCALL.

7100 {
7101 #if DEBUG_CONVERT
7102  fprintf(stderr, "Upsample (x2) AUDIO_U8, 1 channels.\n");
7103 #endif
7104 
7105  const int dstsize = cvt->len_cvt * 2;
7106  Uint8 *dst = ((Uint8 *) (cvt->buf + dstsize)) - 1 * 2;
7107  const Uint8 *src = ((Uint8 *) (cvt->buf + cvt->len_cvt)) - 1;
7108  const Uint8 *target = ((const Uint8 *) cvt->buf);
7109  Sint16 last_sample0 = (Sint16) src[0];
7110  while (dst >= target) {
7111  const Sint16 sample0 = (Sint16) src[0];
7112  src--;
7113  dst[1] = (Uint8) ((sample0 + last_sample0) >> 1);
7114  dst[0] = (Uint8) sample0;
7115  last_sample0 = sample0;
7116  dst -= 2;
7117  }
7118 
7119  cvt->len_cvt = dstsize;
7120  if (cvt->filters[++cvt->filter_index]) {
7121  cvt->filters[cvt->filter_index] (cvt, format);
7122  }
7123 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
Uint8
uint8_t Uint8
An unsigned 8-bit integer type.
Definition: SDL_stdinc.h:139
target
GLenum target
Definition: SDL_opengl_glext.h:1551
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
src
GLenum src
Definition: SDL_opengl_glext.h:1737
Sint16
int16_t Sint16
A signed 16-bit integer type.
Definition: SDL_stdinc.h:143
static void SDL_Upsample_U8_1c_x4 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 7152 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, and SDLCALL.

7153 {
7154 #if DEBUG_CONVERT
7155  fprintf(stderr, "Upsample (x4) AUDIO_U8, 1 channels.\n");
7156 #endif
7157 
7158  const int dstsize = cvt->len_cvt * 4;
7159  Uint8 *dst = ((Uint8 *) (cvt->buf + dstsize)) - 1 * 4;
7160  const Uint8 *src = ((Uint8 *) (cvt->buf + cvt->len_cvt)) - 1;
7161  const Uint8 *target = ((const Uint8 *) cvt->buf);
7162  Sint16 last_sample0 = (Sint16) src[0];
7163  while (dst >= target) {
7164  const Sint16 sample0 = (Sint16) src[0];
7165  src--;
7166  dst[3] = (Uint8) ((sample0 + (3 * last_sample0)) >> 2);
7167  dst[2] = (Uint8) ((sample0 + last_sample0) >> 1);
7168  dst[1] = (Uint8) (((3 * sample0) + last_sample0) >> 2);
7169  dst[0] = (Uint8) sample0;
7170  last_sample0 = sample0;
7171  dst -= 4;
7172  }
7173 
7174  cvt->len_cvt = dstsize;
7175  if (cvt->filters[++cvt->filter_index]) {
7176  cvt->filters[cvt->filter_index] (cvt, format);
7177  }
7178 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
Uint8
uint8_t Uint8
An unsigned 8-bit integer type.
Definition: SDL_stdinc.h:139
target
GLenum target
Definition: SDL_opengl_glext.h:1551
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
src
GLenum src
Definition: SDL_opengl_glext.h:1737
Sint16
int16_t Sint16
A signed 16-bit integer type.
Definition: SDL_stdinc.h:143
static void SDL_Upsample_U8_2c ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 2360 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_AudioCVT::rate_incr, and SDLCALL.

2361 {
2362 #if DEBUG_CONVERT
2363  fprintf(stderr, "Upsample arbitrary (x%f) AUDIO_U8, 2 channels.\n", cvt->rate_incr);
2364 #endif
2365 
2366  const int srcsize = cvt->len_cvt - 32;
2367  const int dstsize = (int) (((double)(cvt->len_cvt/2)) * cvt->rate_incr) * 2;
2368  register int eps = 0;
2369  Uint8 *dst = ((Uint8 *) (cvt->buf + dstsize)) - 2;
2370  const Uint8 *src = ((Uint8 *) (cvt->buf + cvt->len_cvt)) - 2;
2371  const Uint8 *target = ((const Uint8 *) cvt->buf);
2372  Uint8 sample1 = src[1];
2373  Uint8 sample0 = src[0];
2374  Uint8 last_sample1 = sample1;
2375  Uint8 last_sample0 = sample0;
2376  while (dst >= target) {
2377  dst[1] = sample1;
2378  dst[0] = sample0;
2379  dst -= 2;
2380  eps += srcsize;
2381  if ((eps << 1) >= dstsize) {
2382  src -= 2;
2383  sample1 = (Uint8) ((((Sint16) src[1]) + ((Sint16) last_sample1)) >> 1);
2384  sample0 = (Uint8) ((((Sint16) src[0]) + ((Sint16) last_sample0)) >> 1);
2385  last_sample1 = sample1;
2386  last_sample0 = sample0;
2387  eps -= dstsize;
2388  }
2389  }
2390  cvt->len_cvt = dstsize;
2391  if (cvt->filters[++cvt->filter_index]) {
2392  cvt->filters[cvt->filter_index] (cvt, format);
2393  }
2394 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
Uint8
uint8_t Uint8
An unsigned 8-bit integer type.
Definition: SDL_stdinc.h:139
target
GLenum target
Definition: SDL_opengl_glext.h:1551
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
SDL_AudioCVT::rate_incr
double rate_incr
Definition: SDL_audio.h:205
src
GLenum src
Definition: SDL_opengl_glext.h:1737
Sint16
int16_t Sint16
A signed 16-bit integer type.
Definition: SDL_stdinc.h:143
static void SDL_Upsample_U8_2c_x2 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 7207 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, and SDLCALL.

7208 {
7209 #if DEBUG_CONVERT
7210  fprintf(stderr, "Upsample (x2) AUDIO_U8, 2 channels.\n");
7211 #endif
7212 
7213  const int dstsize = cvt->len_cvt * 2;
7214  Uint8 *dst = ((Uint8 *) (cvt->buf + dstsize)) - 2 * 2;
7215  const Uint8 *src = ((Uint8 *) (cvt->buf + cvt->len_cvt)) - 2;
7216  const Uint8 *target = ((const Uint8 *) cvt->buf);
7217  Sint16 last_sample1 = (Sint16) src[1];
7218  Sint16 last_sample0 = (Sint16) src[0];
7219  while (dst >= target) {
7220  const Sint16 sample1 = (Sint16) src[1];
7221  const Sint16 sample0 = (Sint16) src[0];
7222  src -= 2;
7223  dst[3] = (Uint8) ((sample1 + last_sample1) >> 1);
7224  dst[2] = (Uint8) ((sample0 + last_sample0) >> 1);
7225  dst[1] = (Uint8) sample1;
7226  dst[0] = (Uint8) sample0;
7227  last_sample1 = sample1;
7228  last_sample0 = sample0;
7229  dst -= 4;
7230  }
7231 
7232  cvt->len_cvt = dstsize;
7233  if (cvt->filters[++cvt->filter_index]) {
7234  cvt->filters[cvt->filter_index] (cvt, format);
7235  }
7236 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
Uint8
uint8_t Uint8
An unsigned 8-bit integer type.
Definition: SDL_stdinc.h:139
target
GLenum target
Definition: SDL_opengl_glext.h:1551
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
src
GLenum src
Definition: SDL_opengl_glext.h:1737
Sint16
int16_t Sint16
A signed 16-bit integer type.
Definition: SDL_stdinc.h:143
static void SDL_Upsample_U8_2c_x4 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 7269 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, and SDLCALL.

7270 {
7271 #if DEBUG_CONVERT
7272  fprintf(stderr, "Upsample (x4) AUDIO_U8, 2 channels.\n");
7273 #endif
7274 
7275  const int dstsize = cvt->len_cvt * 4;
7276  Uint8 *dst = ((Uint8 *) (cvt->buf + dstsize)) - 2 * 4;
7277  const Uint8 *src = ((Uint8 *) (cvt->buf + cvt->len_cvt)) - 2;
7278  const Uint8 *target = ((const Uint8 *) cvt->buf);
7279  Sint16 last_sample1 = (Sint16) src[1];
7280  Sint16 last_sample0 = (Sint16) src[0];
7281  while (dst >= target) {
7282  const Sint16 sample1 = (Sint16) src[1];
7283  const Sint16 sample0 = (Sint16) src[0];
7284  src -= 2;
7285  dst[7] = (Uint8) ((sample1 + (3 * last_sample1)) >> 2);
7286  dst[6] = (Uint8) ((sample0 + (3 * last_sample0)) >> 2);
7287  dst[5] = (Uint8) ((sample1 + last_sample1) >> 1);
7288  dst[4] = (Uint8) ((sample0 + last_sample0) >> 1);
7289  dst[3] = (Uint8) (((3 * sample1) + last_sample1) >> 2);
7290  dst[2] = (Uint8) (((3 * sample0) + last_sample0) >> 2);
7291  dst[1] = (Uint8) sample1;
7292  dst[0] = (Uint8) sample0;
7293  last_sample1 = sample1;
7294  last_sample0 = sample0;
7295  dst -= 8;
7296  }
7297 
7298  cvt->len_cvt = dstsize;
7299  if (cvt->filters[++cvt->filter_index]) {
7300  cvt->filters[cvt->filter_index] (cvt, format);
7301  }
7302 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
Uint8
uint8_t Uint8
An unsigned 8-bit integer type.
Definition: SDL_stdinc.h:139
target
GLenum target
Definition: SDL_opengl_glext.h:1551
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
src
GLenum src
Definition: SDL_opengl_glext.h:1737
Sint16
int16_t Sint16
A signed 16-bit integer type.
Definition: SDL_stdinc.h:143
static void SDL_Upsample_U8_4c ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 2434 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_AudioCVT::rate_incr, and SDLCALL.

2435 {
2436 #if DEBUG_CONVERT
2437  fprintf(stderr, "Upsample arbitrary (x%f) AUDIO_U8, 4 channels.\n", cvt->rate_incr);
2438 #endif
2439 
2440  const int srcsize = cvt->len_cvt - 64;
2441  const int dstsize = (int) (((double)(cvt->len_cvt/4)) * cvt->rate_incr) * 4;
2442  register int eps = 0;
2443  Uint8 *dst = ((Uint8 *) (cvt->buf + dstsize)) - 4;
2444  const Uint8 *src = ((Uint8 *) (cvt->buf + cvt->len_cvt)) - 4;
2445  const Uint8 *target = ((const Uint8 *) cvt->buf);
2446  Uint8 sample3 = src[3];
2447  Uint8 sample2 = src[2];
2448  Uint8 sample1 = src[1];
2449  Uint8 sample0 = src[0];
2450  Uint8 last_sample3 = sample3;
2451  Uint8 last_sample2 = sample2;
2452  Uint8 last_sample1 = sample1;
2453  Uint8 last_sample0 = sample0;
2454  while (dst >= target) {
2455  dst[3] = sample3;
2456  dst[2] = sample2;
2457  dst[1] = sample1;
2458  dst[0] = sample0;
2459  dst -= 4;
2460  eps += srcsize;
2461  if ((eps << 1) >= dstsize) {
2462  src -= 4;
2463  sample3 = (Uint8) ((((Sint16) src[3]) + ((Sint16) last_sample3)) >> 1);
2464  sample2 = (Uint8) ((((Sint16) src[2]) + ((Sint16) last_sample2)) >> 1);
2465  sample1 = (Uint8) ((((Sint16) src[1]) + ((Sint16) last_sample1)) >> 1);
2466  sample0 = (Uint8) ((((Sint16) src[0]) + ((Sint16) last_sample0)) >> 1);
2467  last_sample3 = sample3;
2468  last_sample2 = sample2;
2469  last_sample1 = sample1;
2470  last_sample0 = sample0;
2471  eps -= dstsize;
2472  }
2473  }
2474  cvt->len_cvt = dstsize;
2475  if (cvt->filters[++cvt->filter_index]) {
2476  cvt->filters[cvt->filter_index] (cvt, format);
2477  }
2478 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
Uint8
uint8_t Uint8
An unsigned 8-bit integer type.
Definition: SDL_stdinc.h:139
target
GLenum target
Definition: SDL_opengl_glext.h:1551
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
SDL_AudioCVT::rate_incr
double rate_incr
Definition: SDL_audio.h:205
src
GLenum src
Definition: SDL_opengl_glext.h:1737
Sint16
int16_t Sint16
A signed 16-bit integer type.
Definition: SDL_stdinc.h:143
static void SDL_Upsample_U8_4c_x2 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 7335 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, and SDLCALL.

7336 {
7337 #if DEBUG_CONVERT
7338  fprintf(stderr, "Upsample (x2) AUDIO_U8, 4 channels.\n");
7339 #endif
7340 
7341  const int dstsize = cvt->len_cvt * 2;
7342  Uint8 *dst = ((Uint8 *) (cvt->buf + dstsize)) - 4 * 2;
7343  const Uint8 *src = ((Uint8 *) (cvt->buf + cvt->len_cvt)) - 4;
7344  const Uint8 *target = ((const Uint8 *) cvt->buf);
7345  Sint16 last_sample3 = (Sint16) src[3];
7346  Sint16 last_sample2 = (Sint16) src[2];
7347  Sint16 last_sample1 = (Sint16) src[1];
7348  Sint16 last_sample0 = (Sint16) src[0];
7349  while (dst >= target) {
7350  const Sint16 sample3 = (Sint16) src[3];
7351  const Sint16 sample2 = (Sint16) src[2];
7352  const Sint16 sample1 = (Sint16) src[1];
7353  const Sint16 sample0 = (Sint16) src[0];
7354  src -= 4;
7355  dst[7] = (Uint8) ((sample3 + last_sample3) >> 1);
7356  dst[6] = (Uint8) ((sample2 + last_sample2) >> 1);
7357  dst[5] = (Uint8) ((sample1 + last_sample1) >> 1);
7358  dst[4] = (Uint8) ((sample0 + last_sample0) >> 1);
7359  dst[3] = (Uint8) sample3;
7360  dst[2] = (Uint8) sample2;
7361  dst[1] = (Uint8) sample1;
7362  dst[0] = (Uint8) sample0;
7363  last_sample3 = sample3;
7364  last_sample2 = sample2;
7365  last_sample1 = sample1;
7366  last_sample0 = sample0;
7367  dst -= 8;
7368  }
7369 
7370  cvt->len_cvt = dstsize;
7371  if (cvt->filters[++cvt->filter_index]) {
7372  cvt->filters[cvt->filter_index] (cvt, format);
7373  }
7374 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
Uint8
uint8_t Uint8
An unsigned 8-bit integer type.
Definition: SDL_stdinc.h:139
target
GLenum target
Definition: SDL_opengl_glext.h:1551
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
src
GLenum src
Definition: SDL_opengl_glext.h:1737
Sint16
int16_t Sint16
A signed 16-bit integer type.
Definition: SDL_stdinc.h:143
static void SDL_Upsample_U8_4c_x4 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 7415 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, and SDLCALL.

7416 {
7417 #if DEBUG_CONVERT
7418  fprintf(stderr, "Upsample (x4) AUDIO_U8, 4 channels.\n");
7419 #endif
7420 
7421  const int dstsize = cvt->len_cvt * 4;
7422  Uint8 *dst = ((Uint8 *) (cvt->buf + dstsize)) - 4 * 4;
7423  const Uint8 *src = ((Uint8 *) (cvt->buf + cvt->len_cvt)) - 4;
7424  const Uint8 *target = ((const Uint8 *) cvt->buf);
7425  Sint16 last_sample3 = (Sint16) src[3];
7426  Sint16 last_sample2 = (Sint16) src[2];
7427  Sint16 last_sample1 = (Sint16) src[1];
7428  Sint16 last_sample0 = (Sint16) src[0];
7429  while (dst >= target) {
7430  const Sint16 sample3 = (Sint16) src[3];
7431  const Sint16 sample2 = (Sint16) src[2];
7432  const Sint16 sample1 = (Sint16) src[1];
7433  const Sint16 sample0 = (Sint16) src[0];
7434  src -= 4;
7435  dst[15] = (Uint8) ((sample3 + (3 * last_sample3)) >> 2);
7436  dst[14] = (Uint8) ((sample2 + (3 * last_sample2)) >> 2);
7437  dst[13] = (Uint8) ((sample1 + (3 * last_sample1)) >> 2);
7438  dst[12] = (Uint8) ((sample0 + (3 * last_sample0)) >> 2);
7439  dst[11] = (Uint8) ((sample3 + last_sample3) >> 1);
7440  dst[10] = (Uint8) ((sample2 + last_sample2) >> 1);
7441  dst[9] = (Uint8) ((sample1 + last_sample1) >> 1);
7442  dst[8] = (Uint8) ((sample0 + last_sample0) >> 1);
7443  dst[7] = (Uint8) (((3 * sample3) + last_sample3) >> 2);
7444  dst[6] = (Uint8) (((3 * sample2) + last_sample2) >> 2);
7445  dst[5] = (Uint8) (((3 * sample1) + last_sample1) >> 2);
7446  dst[4] = (Uint8) (((3 * sample0) + last_sample0) >> 2);
7447  dst[3] = (Uint8) sample3;
7448  dst[2] = (Uint8) sample2;
7449  dst[1] = (Uint8) sample1;
7450  dst[0] = (Uint8) sample0;
7451  last_sample3 = sample3;
7452  last_sample2 = sample2;
7453  last_sample1 = sample1;
7454  last_sample0 = sample0;
7455  dst -= 16;
7456  }
7457 
7458  cvt->len_cvt = dstsize;
7459  if (cvt->filters[++cvt->filter_index]) {
7460  cvt->filters[cvt->filter_index] (cvt, format);
7461  }
7462 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
Uint8
uint8_t Uint8
An unsigned 8-bit integer type.
Definition: SDL_stdinc.h:139
target
GLenum target
Definition: SDL_opengl_glext.h:1551
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
src
GLenum src
Definition: SDL_opengl_glext.h:1737
Sint16
int16_t Sint16
A signed 16-bit integer type.
Definition: SDL_stdinc.h:143
static void SDL_Upsample_U8_6c ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 2528 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_AudioCVT::rate_incr, and SDLCALL.

2529 {
2530 #if DEBUG_CONVERT
2531  fprintf(stderr, "Upsample arbitrary (x%f) AUDIO_U8, 6 channels.\n", cvt->rate_incr);
2532 #endif
2533 
2534  const int srcsize = cvt->len_cvt - 96;
2535  const int dstsize = (int) (((double)(cvt->len_cvt/6)) * cvt->rate_incr) * 6;
2536  register int eps = 0;
2537  Uint8 *dst = ((Uint8 *) (cvt->buf + dstsize)) - 6;
2538  const Uint8 *src = ((Uint8 *) (cvt->buf + cvt->len_cvt)) - 6;
2539  const Uint8 *target = ((const Uint8 *) cvt->buf);
2540  Uint8 sample5 = src[5];
2541  Uint8 sample4 = src[4];
2542  Uint8 sample3 = src[3];
2543  Uint8 sample2 = src[2];
2544  Uint8 sample1 = src[1];
2545  Uint8 sample0 = src[0];
2546  Uint8 last_sample5 = sample5;
2547  Uint8 last_sample4 = sample4;
2548  Uint8 last_sample3 = sample3;
2549  Uint8 last_sample2 = sample2;
2550  Uint8 last_sample1 = sample1;
2551  Uint8 last_sample0 = sample0;
2552  while (dst >= target) {
2553  dst[5] = sample5;
2554  dst[4] = sample4;
2555  dst[3] = sample3;
2556  dst[2] = sample2;
2557  dst[1] = sample1;
2558  dst[0] = sample0;
2559  dst -= 6;
2560  eps += srcsize;
2561  if ((eps << 1) >= dstsize) {
2562  src -= 6;
2563  sample5 = (Uint8) ((((Sint16) src[5]) + ((Sint16) last_sample5)) >> 1);
2564  sample4 = (Uint8) ((((Sint16) src[4]) + ((Sint16) last_sample4)) >> 1);
2565  sample3 = (Uint8) ((((Sint16) src[3]) + ((Sint16) last_sample3)) >> 1);
2566  sample2 = (Uint8) ((((Sint16) src[2]) + ((Sint16) last_sample2)) >> 1);
2567  sample1 = (Uint8) ((((Sint16) src[1]) + ((Sint16) last_sample1)) >> 1);
2568  sample0 = (Uint8) ((((Sint16) src[0]) + ((Sint16) last_sample0)) >> 1);
2569  last_sample5 = sample5;
2570  last_sample4 = sample4;
2571  last_sample3 = sample3;
2572  last_sample2 = sample2;
2573  last_sample1 = sample1;
2574  last_sample0 = sample0;
2575  eps -= dstsize;
2576  }
2577  }
2578  cvt->len_cvt = dstsize;
2579  if (cvt->filters[++cvt->filter_index]) {
2580  cvt->filters[cvt->filter_index] (cvt, format);
2581  }
2582 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
Uint8
uint8_t Uint8
An unsigned 8-bit integer type.
Definition: SDL_stdinc.h:139
target
GLenum target
Definition: SDL_opengl_glext.h:1551
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
SDL_AudioCVT::rate_incr
double rate_incr
Definition: SDL_audio.h:205
src
GLenum src
Definition: SDL_opengl_glext.h:1737
Sint16
int16_t Sint16
A signed 16-bit integer type.
Definition: SDL_stdinc.h:143
static void SDL_Upsample_U8_6c_x2 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 7503 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, and SDLCALL.

7504 {
7505 #if DEBUG_CONVERT
7506  fprintf(stderr, "Upsample (x2) AUDIO_U8, 6 channels.\n");
7507 #endif
7508 
7509  const int dstsize = cvt->len_cvt * 2;
7510  Uint8 *dst = ((Uint8 *) (cvt->buf + dstsize)) - 6 * 2;
7511  const Uint8 *src = ((Uint8 *) (cvt->buf + cvt->len_cvt)) - 6;
7512  const Uint8 *target = ((const Uint8 *) cvt->buf);
7513  Sint16 last_sample5 = (Sint16) src[5];
7514  Sint16 last_sample4 = (Sint16) src[4];
7515  Sint16 last_sample3 = (Sint16) src[3];
7516  Sint16 last_sample2 = (Sint16) src[2];
7517  Sint16 last_sample1 = (Sint16) src[1];
7518  Sint16 last_sample0 = (Sint16) src[0];
7519  while (dst >= target) {
7520  const Sint16 sample5 = (Sint16) src[5];
7521  const Sint16 sample4 = (Sint16) src[4];
7522  const Sint16 sample3 = (Sint16) src[3];
7523  const Sint16 sample2 = (Sint16) src[2];
7524  const Sint16 sample1 = (Sint16) src[1];
7525  const Sint16 sample0 = (Sint16) src[0];
7526  src -= 6;
7527  dst[11] = (Uint8) ((sample5 + last_sample5) >> 1);
7528  dst[10] = (Uint8) ((sample4 + last_sample4) >> 1);
7529  dst[9] = (Uint8) ((sample3 + last_sample3) >> 1);
7530  dst[8] = (Uint8) ((sample2 + last_sample2) >> 1);
7531  dst[7] = (Uint8) ((sample1 + last_sample1) >> 1);
7532  dst[6] = (Uint8) ((sample0 + last_sample0) >> 1);
7533  dst[5] = (Uint8) sample5;
7534  dst[4] = (Uint8) sample4;
7535  dst[3] = (Uint8) sample3;
7536  dst[2] = (Uint8) sample2;
7537  dst[1] = (Uint8) sample1;
7538  dst[0] = (Uint8) sample0;
7539  last_sample5 = sample5;
7540  last_sample4 = sample4;
7541  last_sample3 = sample3;
7542  last_sample2 = sample2;
7543  last_sample1 = sample1;
7544  last_sample0 = sample0;
7545  dst -= 12;
7546  }
7547 
7548  cvt->len_cvt = dstsize;
7549  if (cvt->filters[++cvt->filter_index]) {
7550  cvt->filters[cvt->filter_index] (cvt, format);
7551  }
7552 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
Uint8
uint8_t Uint8
An unsigned 8-bit integer type.
Definition: SDL_stdinc.h:139
target
GLenum target
Definition: SDL_opengl_glext.h:1551
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
src
GLenum src
Definition: SDL_opengl_glext.h:1737
Sint16
int16_t Sint16
A signed 16-bit integer type.
Definition: SDL_stdinc.h:143
static void SDL_Upsample_U8_6c_x4 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 7601 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, and SDLCALL.

7602 {
7603 #if DEBUG_CONVERT
7604  fprintf(stderr, "Upsample (x4) AUDIO_U8, 6 channels.\n");
7605 #endif
7606 
7607  const int dstsize = cvt->len_cvt * 4;
7608  Uint8 *dst = ((Uint8 *) (cvt->buf + dstsize)) - 6 * 4;
7609  const Uint8 *src = ((Uint8 *) (cvt->buf + cvt->len_cvt)) - 6;
7610  const Uint8 *target = ((const Uint8 *) cvt->buf);
7611  Sint16 last_sample5 = (Sint16) src[5];
7612  Sint16 last_sample4 = (Sint16) src[4];
7613  Sint16 last_sample3 = (Sint16) src[3];
7614  Sint16 last_sample2 = (Sint16) src[2];
7615  Sint16 last_sample1 = (Sint16) src[1];
7616  Sint16 last_sample0 = (Sint16) src[0];
7617  while (dst >= target) {
7618  const Sint16 sample5 = (Sint16) src[5];
7619  const Sint16 sample4 = (Sint16) src[4];
7620  const Sint16 sample3 = (Sint16) src[3];
7621  const Sint16 sample2 = (Sint16) src[2];
7622  const Sint16 sample1 = (Sint16) src[1];
7623  const Sint16 sample0 = (Sint16) src[0];
7624  src -= 6;
7625  dst[23] = (Uint8) ((sample5 + (3 * last_sample5)) >> 2);
7626  dst[22] = (Uint8) ((sample4 + (3 * last_sample4)) >> 2);
7627  dst[21] = (Uint8) ((sample3 + (3 * last_sample3)) >> 2);
7628  dst[20] = (Uint8) ((sample2 + (3 * last_sample2)) >> 2);
7629  dst[19] = (Uint8) ((sample1 + (3 * last_sample1)) >> 2);
7630  dst[18] = (Uint8) ((sample0 + (3 * last_sample0)) >> 2);
7631  dst[17] = (Uint8) ((sample5 + last_sample5) >> 1);
7632  dst[16] = (Uint8) ((sample4 + last_sample4) >> 1);
7633  dst[15] = (Uint8) ((sample3 + last_sample3) >> 1);
7634  dst[14] = (Uint8) ((sample2 + last_sample2) >> 1);
7635  dst[13] = (Uint8) ((sample1 + last_sample1) >> 1);
7636  dst[12] = (Uint8) ((sample0 + last_sample0) >> 1);
7637  dst[11] = (Uint8) (((3 * sample5) + last_sample5) >> 2);
7638  dst[10] = (Uint8) (((3 * sample4) + last_sample4) >> 2);
7639  dst[9] = (Uint8) (((3 * sample3) + last_sample3) >> 2);
7640  dst[8] = (Uint8) (((3 * sample2) + last_sample2) >> 2);
7641  dst[7] = (Uint8) (((3 * sample1) + last_sample1) >> 2);
7642  dst[6] = (Uint8) (((3 * sample0) + last_sample0) >> 2);
7643  dst[5] = (Uint8) sample5;
7644  dst[4] = (Uint8) sample4;
7645  dst[3] = (Uint8) sample3;
7646  dst[2] = (Uint8) sample2;
7647  dst[1] = (Uint8) sample1;
7648  dst[0] = (Uint8) sample0;
7649  last_sample5 = sample5;
7650  last_sample4 = sample4;
7651  last_sample3 = sample3;
7652  last_sample2 = sample2;
7653  last_sample1 = sample1;
7654  last_sample0 = sample0;
7655  dst -= 24;
7656  }
7657 
7658  cvt->len_cvt = dstsize;
7659  if (cvt->filters[++cvt->filter_index]) {
7660  cvt->filters[cvt->filter_index] (cvt, format);
7661  }
7662 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
Uint8
uint8_t Uint8
An unsigned 8-bit integer type.
Definition: SDL_stdinc.h:139
target
GLenum target
Definition: SDL_opengl_glext.h:1551
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
src
GLenum src
Definition: SDL_opengl_glext.h:1737
Sint16
int16_t Sint16
A signed 16-bit integer type.
Definition: SDL_stdinc.h:143
static void SDL_Upsample_U8_8c ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 2642 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, SDL_AudioCVT::rate_incr, and SDLCALL.

2643 {
2644 #if DEBUG_CONVERT
2645  fprintf(stderr, "Upsample arbitrary (x%f) AUDIO_U8, 8 channels.\n", cvt->rate_incr);
2646 #endif
2647 
2648  const int srcsize = cvt->len_cvt - 128;
2649  const int dstsize = (int) (((double)(cvt->len_cvt/8)) * cvt->rate_incr) * 8;
2650  register int eps = 0;
2651  Uint8 *dst = ((Uint8 *) (cvt->buf + dstsize)) - 8;
2652  const Uint8 *src = ((Uint8 *) (cvt->buf + cvt->len_cvt)) - 8;
2653  const Uint8 *target = ((const Uint8 *) cvt->buf);
2654  Uint8 sample7 = src[7];
2655  Uint8 sample6 = src[6];
2656  Uint8 sample5 = src[5];
2657  Uint8 sample4 = src[4];
2658  Uint8 sample3 = src[3];
2659  Uint8 sample2 = src[2];
2660  Uint8 sample1 = src[1];
2661  Uint8 sample0 = src[0];
2662  Uint8 last_sample7 = sample7;
2663  Uint8 last_sample6 = sample6;
2664  Uint8 last_sample5 = sample5;
2665  Uint8 last_sample4 = sample4;
2666  Uint8 last_sample3 = sample3;
2667  Uint8 last_sample2 = sample2;
2668  Uint8 last_sample1 = sample1;
2669  Uint8 last_sample0 = sample0;
2670  while (dst >= target) {
2671  dst[7] = sample7;
2672  dst[6] = sample6;
2673  dst[5] = sample5;
2674  dst[4] = sample4;
2675  dst[3] = sample3;
2676  dst[2] = sample2;
2677  dst[1] = sample1;
2678  dst[0] = sample0;
2679  dst -= 8;
2680  eps += srcsize;
2681  if ((eps << 1) >= dstsize) {
2682  src -= 8;
2683  sample7 = (Uint8) ((((Sint16) src[7]) + ((Sint16) last_sample7)) >> 1);
2684  sample6 = (Uint8) ((((Sint16) src[6]) + ((Sint16) last_sample6)) >> 1);
2685  sample5 = (Uint8) ((((Sint16) src[5]) + ((Sint16) last_sample5)) >> 1);
2686  sample4 = (Uint8) ((((Sint16) src[4]) + ((Sint16) last_sample4)) >> 1);
2687  sample3 = (Uint8) ((((Sint16) src[3]) + ((Sint16) last_sample3)) >> 1);
2688  sample2 = (Uint8) ((((Sint16) src[2]) + ((Sint16) last_sample2)) >> 1);
2689  sample1 = (Uint8) ((((Sint16) src[1]) + ((Sint16) last_sample1)) >> 1);
2690  sample0 = (Uint8) ((((Sint16) src[0]) + ((Sint16) last_sample0)) >> 1);
2691  last_sample7 = sample7;
2692  last_sample6 = sample6;
2693  last_sample5 = sample5;
2694  last_sample4 = sample4;
2695  last_sample3 = sample3;
2696  last_sample2 = sample2;
2697  last_sample1 = sample1;
2698  last_sample0 = sample0;
2699  eps -= dstsize;
2700  }
2701  }
2702  cvt->len_cvt = dstsize;
2703  if (cvt->filters[++cvt->filter_index]) {
2704  cvt->filters[cvt->filter_index] (cvt, format);
2705  }
2706 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
Uint8
uint8_t Uint8
An unsigned 8-bit integer type.
Definition: SDL_stdinc.h:139
target
GLenum target
Definition: SDL_opengl_glext.h:1551
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
SDL_AudioCVT::rate_incr
double rate_incr
Definition: SDL_audio.h:205
src
GLenum src
Definition: SDL_opengl_glext.h:1737
Sint16
int16_t Sint16
A signed 16-bit integer type.
Definition: SDL_stdinc.h:143
static void SDL_Upsample_U8_8c_x2 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 7711 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, and SDLCALL.

7712 {
7713 #if DEBUG_CONVERT
7714  fprintf(stderr, "Upsample (x2) AUDIO_U8, 8 channels.\n");
7715 #endif
7716 
7717  const int dstsize = cvt->len_cvt * 2;
7718  Uint8 *dst = ((Uint8 *) (cvt->buf + dstsize)) - 8 * 2;
7719  const Uint8 *src = ((Uint8 *) (cvt->buf + cvt->len_cvt)) - 8;
7720  const Uint8 *target = ((const Uint8 *) cvt->buf);
7721  Sint16 last_sample7 = (Sint16) src[7];
7722  Sint16 last_sample6 = (Sint16) src[6];
7723  Sint16 last_sample5 = (Sint16) src[5];
7724  Sint16 last_sample4 = (Sint16) src[4];
7725  Sint16 last_sample3 = (Sint16) src[3];
7726  Sint16 last_sample2 = (Sint16) src[2];
7727  Sint16 last_sample1 = (Sint16) src[1];
7728  Sint16 last_sample0 = (Sint16) src[0];
7729  while (dst >= target) {
7730  const Sint16 sample7 = (Sint16) src[7];
7731  const Sint16 sample6 = (Sint16) src[6];
7732  const Sint16 sample5 = (Sint16) src[5];
7733  const Sint16 sample4 = (Sint16) src[4];
7734  const Sint16 sample3 = (Sint16) src[3];
7735  const Sint16 sample2 = (Sint16) src[2];
7736  const Sint16 sample1 = (Sint16) src[1];
7737  const Sint16 sample0 = (Sint16) src[0];
7738  src -= 8;
7739  dst[15] = (Uint8) ((sample7 + last_sample7) >> 1);
7740  dst[14] = (Uint8) ((sample6 + last_sample6) >> 1);
7741  dst[13] = (Uint8) ((sample5 + last_sample5) >> 1);
7742  dst[12] = (Uint8) ((sample4 + last_sample4) >> 1);
7743  dst[11] = (Uint8) ((sample3 + last_sample3) >> 1);
7744  dst[10] = (Uint8) ((sample2 + last_sample2) >> 1);
7745  dst[9] = (Uint8) ((sample1 + last_sample1) >> 1);
7746  dst[8] = (Uint8) ((sample0 + last_sample0) >> 1);
7747  dst[7] = (Uint8) sample7;
7748  dst[6] = (Uint8) sample6;
7749  dst[5] = (Uint8) sample5;
7750  dst[4] = (Uint8) sample4;
7751  dst[3] = (Uint8) sample3;
7752  dst[2] = (Uint8) sample2;
7753  dst[1] = (Uint8) sample1;
7754  dst[0] = (Uint8) sample0;
7755  last_sample7 = sample7;
7756  last_sample6 = sample6;
7757  last_sample5 = sample5;
7758  last_sample4 = sample4;
7759  last_sample3 = sample3;
7760  last_sample2 = sample2;
7761  last_sample1 = sample1;
7762  last_sample0 = sample0;
7763  dst -= 16;
7764  }
7765 
7766  cvt->len_cvt = dstsize;
7767  if (cvt->filters[++cvt->filter_index]) {
7768  cvt->filters[cvt->filter_index] (cvt, format);
7769  }
7770 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
Uint8
uint8_t Uint8
An unsigned 8-bit integer type.
Definition: SDL_stdinc.h:139
target
GLenum target
Definition: SDL_opengl_glext.h:1551
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
src
GLenum src
Definition: SDL_opengl_glext.h:1737
Sint16
int16_t Sint16
A signed 16-bit integer type.
Definition: SDL_stdinc.h:143
static void SDL_Upsample_U8_8c_x4 ( SDL_AudioCVT *  cvt,
SDL_AudioFormat  format 
)
static

Definition at line 7827 of file SDL_audiotypecvt.c.

References SDL_AudioCVT::buf, SDL_AudioCVT::filter_index, SDL_AudioCVT::filters, SDL_AudioCVT::len_cvt, and SDLCALL.

7828 {
7829 #if DEBUG_CONVERT
7830  fprintf(stderr, "Upsample (x4) AUDIO_U8, 8 channels.\n");
7831 #endif
7832 
7833  const int dstsize = cvt->len_cvt * 4;
7834  Uint8 *dst = ((Uint8 *) (cvt->buf + dstsize)) - 8 * 4;
7835  const Uint8 *src = ((Uint8 *) (cvt->buf + cvt->len_cvt)) - 8;
7836  const Uint8 *target = ((const Uint8 *) cvt->buf);
7837  Sint16 last_sample7 = (Sint16) src[7];
7838  Sint16 last_sample6 = (Sint16) src[6];
7839  Sint16 last_sample5 = (Sint16) src[5];
7840  Sint16 last_sample4 = (Sint16) src[4];
7841  Sint16 last_sample3 = (Sint16) src[3];
7842  Sint16 last_sample2 = (Sint16) src[2];
7843  Sint16 last_sample1 = (Sint16) src[1];
7844  Sint16 last_sample0 = (Sint16) src[0];
7845  while (dst >= target) {
7846  const Sint16 sample7 = (Sint16) src[7];
7847  const Sint16 sample6 = (Sint16) src[6];
7848  const Sint16 sample5 = (Sint16) src[5];
7849  const Sint16 sample4 = (Sint16) src[4];
7850  const Sint16 sample3 = (Sint16) src[3];
7851  const Sint16 sample2 = (Sint16) src[2];
7852  const Sint16 sample1 = (Sint16) src[1];
7853  const Sint16 sample0 = (Sint16) src[0];
7854  src -= 8;
7855  dst[31] = (Uint8) ((sample7 + (3 * last_sample7)) >> 2);
7856  dst[30] = (Uint8) ((sample6 + (3 * last_sample6)) >> 2);
7857  dst[29] = (Uint8) ((sample5 + (3 * last_sample5)) >> 2);
7858  dst[28] = (Uint8) ((sample4 + (3 * last_sample4)) >> 2);
7859  dst[27] = (Uint8) ((sample3 + (3 * last_sample3)) >> 2);
7860  dst[26] = (Uint8) ((sample2 + (3 * last_sample2)) >> 2);
7861  dst[25] = (Uint8) ((sample1 + (3 * last_sample1)) >> 2);
7862  dst[24] = (Uint8) ((sample0 + (3 * last_sample0)) >> 2);
7863  dst[23] = (Uint8) ((sample7 + last_sample7) >> 1);
7864  dst[22] = (Uint8) ((sample6 + last_sample6) >> 1);
7865  dst[21] = (Uint8) ((sample5 + last_sample5) >> 1);
7866  dst[20] = (Uint8) ((sample4 + last_sample4) >> 1);
7867  dst[19] = (Uint8) ((sample3 + last_sample3) >> 1);
7868  dst[18] = (Uint8) ((sample2 + last_sample2) >> 1);
7869  dst[17] = (Uint8) ((sample1 + last_sample1) >> 1);
7870  dst[16] = (Uint8) ((sample0 + last_sample0) >> 1);
7871  dst[15] = (Uint8) (((3 * sample7) + last_sample7) >> 2);
7872  dst[14] = (Uint8) (((3 * sample6) + last_sample6) >> 2);
7873  dst[13] = (Uint8) (((3 * sample5) + last_sample5) >> 2);
7874  dst[12] = (Uint8) (((3 * sample4) + last_sample4) >> 2);
7875  dst[11] = (Uint8) (((3 * sample3) + last_sample3) >> 2);
7876  dst[10] = (Uint8) (((3 * sample2) + last_sample2) >> 2);
7877  dst[9] = (Uint8) (((3 * sample1) + last_sample1) >> 2);
7878  dst[8] = (Uint8) (((3 * sample0) + last_sample0) >> 2);
7879  dst[7] = (Uint8) sample7;
7880  dst[6] = (Uint8) sample6;
7881  dst[5] = (Uint8) sample5;
7882  dst[4] = (Uint8) sample4;
7883  dst[3] = (Uint8) sample3;
7884  dst[2] = (Uint8) sample2;
7885  dst[1] = (Uint8) sample1;
7886  dst[0] = (Uint8) sample0;
7887  last_sample7 = sample7;
7888  last_sample6 = sample6;
7889  last_sample5 = sample5;
7890  last_sample4 = sample4;
7891  last_sample3 = sample3;
7892  last_sample2 = sample2;
7893  last_sample1 = sample1;
7894  last_sample0 = sample0;
7895  dst -= 32;
7896  }
7897 
7898  cvt->len_cvt = dstsize;
7899  if (cvt->filters[++cvt->filter_index]) {
7900  cvt->filters[cvt->filter_index] (cvt, format);
7901  }
7902 }
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_AudioCVT::buf
Uint8 * buf
Definition: SDL_audio.h:206
SDL_AudioCVT::filter_index
int filter_index
Definition: SDL_audio.h:212
SDL_AudioCVT::filters
SDL_AudioFilter filters[10]
Definition: SDL_audio.h:211
Uint8
uint8_t Uint8
An unsigned 8-bit integer type.
Definition: SDL_stdinc.h:139
target
GLenum target
Definition: SDL_opengl_glext.h:1551
SDL_AudioCVT::len_cvt
int len_cvt
Definition: SDL_audio.h:208
src
GLenum src
Definition: SDL_opengl_glext.h:1737
Sint16
int16_t Sint16
A signed 16-bit integer type.
Definition: SDL_stdinc.h:143

Variable Documentation

const SDL_AudioRateFilters sdl_audio_rate_filters[]

Definition at line 15702 of file SDL_audiotypecvt.c.

Referenced by SDL_BuildAudioResampleCVT().

const SDL_AudioTypeFilters sdl_audio_type_filters[]

Definition at line 2195 of file SDL_audiotypecvt.c.

Referenced by SDL_BuildAudioTypeCVT().