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Code Issues Releases Wiki Activity

make the internal sdl mixer optional, idea by Reimar Doffinger 

git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@12674 b3059339-0415-0410-9bf9-f77b7e298cf2
This commit is contained in:
alex 2004-06-26 09:21:07 +00:00
parent ba3c4568fb
commit 309e81bcee
1 changed files with 12 additions and 1 deletions
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13
libao2/ao_sdl.c
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@ -35,6 +35,9 @@ static ao_info_t info =
LIBAO_EXTERN(sdl)
// turn this on if you want to use the slower SDL_MixAudio
#undef USE_SDL_INTERNAL_MIXER
// Samplesize used by the SDLlib AudioSpec struct
#ifdef WIN32
#define SAMPLESIZE 2048
@ -53,7 +56,9 @@ static unsigned int buf_read=0;
static unsigned int buf_write=0;
static unsigned int buf_read_pos=0;
static unsigned int buf_write_pos=0;
#ifdef USE_SDL_INTERNAL_MIXER
static unsigned char volume=SDL_MIX_MAXVOLUME;
#endif
static int full_buffers=0;
static int buffered_bytes=0;
@ -87,7 +92,11 @@ static int read_buffer(unsigned char* data,int len){
x=BUFFSIZE-buf_read_pos;
if(x>len) x=len;
if (x>buffered_bytes) x=buffered_bytes;
#ifdef USE_SDL_INTERNAL_MIXER
SDL_MixAudio(data+len2,buffer[buf_read]+buf_read_pos,x,volume);
#else
memcpy(data+len2,buffer[buf_read]+buf_read_pos,x);
#endif
len2+=x; len-=x;
buffered_bytes-=x; buf_read_pos+=x;
if(buf_read_pos>=BUFFSIZE){
@ -121,6 +130,7 @@ static void setenv(const char *name, const char *val, int _xx)
// to set/get/query special features/parameters
static int control(int cmd,void *arg){
#ifdef USE_SDL_INTERNAL_MIXER
switch (cmd) {
case AOCONTROL_GET_VOLUME:
{
@ -137,7 +147,8 @@ static int control(int cmd,void *arg){
return CONTROL_OK;
}
}
return -1;
#endif
return CONTROL_UNKNOWN;
}
// SDL Callback function