/**
* Initialize the audio subsystem.
*/
int InitSound()
{
int sound, soundrate, soundbufsize, soundvolume, soundtrianglevolume,
soundsquare1volume, soundsquare2volume, soundnoisevolume,
soundpcmvolume, soundq, lowpass, samples;
FCEUI_printf("Initializing audio...\n");
g_config->getOption("SDL.Sound", &sound);
if (!sound) return 0;
memset(&spec, 0, sizeof(spec));
if(SDL_InitSubSystem(SDL_INIT_AUDIO) < 0) {
puts(SDL_GetError());
KillSound();
return(0);
}
char driverName[8];
SDL_AudioDriverName(driverName, 8);
fprintf(stderr, "Loading SDL sound with %s driver...\n", driverName);
// load configuration variables
g_config->getOption("SDL.Sound.Rate", &soundrate);
g_config->getOption("SDL.Sound.BufSize", &soundbufsize);
g_config->getOption("SDL.Sound.Volume", &soundvolume);
g_config->getOption("SDL.Sound.Quality", &soundq);
g_config->getOption("SDL.Sound.TriangleVolume", &soundtrianglevolume);
g_config->getOption("SDL.Sound.Square1Volume", &soundsquare1volume);
g_config->getOption("SDL.Sound.Square2Volume", &soundsquare2volume);
g_config->getOption("SDL.Sound.NoiseVolume", &soundnoisevolume);
g_config->getOption("SDL.Sound.PCMVolume", &soundpcmvolume);
g_config->getOption("SDL.Sound.LowPass", &lowpass);
spec.freq = soundrate;
spec.format = AUDIO_S16;
spec.channels = 2;
spec.samples = 512;
spec.callback = fillaudio;
spec.userdata = 0;
while(spec.samples < (soundrate / 60) * 1) spec.samples <<= 1;
s_BufferSize = spec.samples * 4;
s_Buffer = (int16 *) malloc(sizeof(int16) * s_BufferSize);
if (!s_Buffer) return 0;
s_BufferRead = s_BufferWrite = s_BufferIn = 0;
printf("SDL Size: %d, Internal size: %d\n", spec.samples, s_BufferSize);
if(SDL_OpenAudio(&spec, 0) < 0) {
puts(SDL_GetError());
KillSound();
return(0);
}
SDL_PauseAudio(0);
FCEUI_SetSoundVolume(soundvolume);
FCEUI_SetSoundQuality(soundq);
FCEUI_Sound(soundrate);
FCEUI_SetTriangleVolume(soundtrianglevolume);
FCEUI_SetSquare1Volume(soundsquare1volume);
FCEUI_SetSquare2Volume(soundsquare2volume);
FCEUI_SetNoiseVolume(soundnoisevolume);
FCEUI_SetPCMVolume(soundpcmvolume);
FCEUI_SetLowPass(lowpass);
return (1);
}
/**
* Initialize the audio subsystem.
*/
int
InitSound()
{
int sound, soundrate, soundbufsize, soundvolume, soundtrianglevolume, soundsquare1volume, soundsquare2volume, soundnoisevolume, soundpcmvolume, soundq;
SDL_AudioSpec spec;
g_config->getOption("SDL.Sound", &sound);
if(!sound) {
return 0;
}
memset(&spec, 0, sizeof(spec));
if(SDL_InitSubSystem(SDL_INIT_AUDIO) < 0) {
puts(SDL_GetError());
KillSound();
return 0;
}
char driverName[8];
#if SDL_VERSION_ATLEAST(2, 0, 0)
// TODO - SDL 2
#else
SDL_AudioDriverName(driverName, 8);
fprintf(stderr, "Loading SDL sound with %s driver...\n", driverName);
#endif
// load configuration variables
g_config->getOption("SDL.Sound.Rate", &soundrate);
g_config->getOption("SDL.Sound.BufSize", &soundbufsize);
g_config->getOption("SDL.Sound.Volume", &soundvolume);
g_config->getOption("SDL.Sound.Quality", &soundq);
g_config->getOption("SDL.Sound.TriangleVolume", &soundtrianglevolume);
g_config->getOption("SDL.Sound.Square1Volume", &soundsquare1volume);
g_config->getOption("SDL.Sound.Square2Volume", &soundsquare2volume);
g_config->getOption("SDL.Sound.NoiseVolume", &soundnoisevolume);
g_config->getOption("SDL.Sound.PCMVolume", &soundpcmvolume);
spec.freq = soundrate;
spec.format = AUDIO_S16SYS;
spec.channels = 1;
spec.samples = 512;
spec.callback = fillaudio;
spec.userdata = 0;
s_BufferSize = soundbufsize * soundrate / 1000;
// For safety, set a bare minimum:
if (s_BufferSize < spec.samples * 2)
s_BufferSize = spec.samples * 2;
s_Buffer = (int *)FCEU_dmalloc(sizeof(int) * s_BufferSize);
if (!s_Buffer)
return 0;
s_BufferRead = s_BufferWrite = s_BufferIn = 0;
if(SDL_OpenAudio(&spec, 0) < 0)
{
puts(SDL_GetError());
KillSound();
return 0;
}
SDL_PauseAudio(0);
FCEUI_SetSoundVolume(soundvolume);
FCEUI_SetSoundQuality(soundq);
FCEUI_Sound(soundrate);
FCEUI_SetTriangleVolume(soundtrianglevolume);
FCEUI_SetSquare1Volume(soundsquare1volume);
FCEUI_SetSquare2Volume(soundsquare2volume);
FCEUI_SetNoiseVolume(soundnoisevolume);
FCEUI_SetPCMVolume(soundpcmvolume);
return 1;
}