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Added source color and alpha modulation support.

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Added perl script to generate optimized render copy functions.

--HG--
extra : convert_revision : svn%3Ac70aab31-4412-0410-b14c-859654838e24/trunk%402032
This commit is contained in:
Sam Lantinga 2006-08-28 03:17:39 +00:00
parent aebbf8cb6e
commit fdafca64b3
25 changed files with 6938 additions and 288 deletions
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26
include/SDL_audio.h
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@ -132,22 +132,22 @@ typedef struct SDL_AudioSpec
/* A structure to hold a set of audio conversion filters and buffers */
struct SDL_AudioCVT;
typedef void (SDLCALL * SDL_AudioFilter)(struct SDL_AudioCVT *cvt,
SDL_AudioFormat format);
typedef void (SDLCALL * SDL_AudioFilter) (struct SDL_AudioCVT * cvt,
SDL_AudioFormat format);
typedef struct SDL_AudioCVT
{
int needed; /* Set to 1 if conversion possible */
SDL_AudioFormat src_format; /* Source audio format */
SDL_AudioFormat dst_format; /* Target audio format */
double rate_incr; /* Rate conversion increment */
Uint8 *buf; /* Buffer to hold entire audio data */
int len; /* Length of original audio buffer */
int len_cvt; /* Length of converted audio buffer */
int len_mult; /* buffer must be len*len_mult big */
double len_ratio; /* Given len, final size is len*len_ratio */
SDL_AudioFilter filters[10]; /* Filter list */
int filter_index; /* Current audio conversion function */
int needed; /* Set to 1 if conversion possible */
SDL_AudioFormat src_format; /* Source audio format */
SDL_AudioFormat dst_format; /* Target audio format */
double rate_incr; /* Rate conversion increment */
Uint8 *buf; /* Buffer to hold entire audio data */
int len; /* Length of original audio buffer */
int len_cvt; /* Length of converted audio buffer */
int len_mult; /* buffer must be len*len_mult big */
double len_ratio; /* Given len, final size is len*len_ratio */
SDL_AudioFilter filters[10]; /* Filter list */
int filter_index; /* Current audio conversion function */
} SDL_AudioCVT;