tron@2186: /* $Id$ */
tron@2186: 
richk@10724: /** @file sdl_s.cpp Playing sound via SDL. */
richk@10724: 
Darkvater@6450: #ifdef WITH_SDL
Darkvater@6450: 
tron@2189: #include "../stdafx.h"
tron@2189: 
tron@2189: #include "../driver.h"
tron@2189: #include "../mixer.h"
tron@2189: #include "../sdl.h"
tron@2189: #include "sdl_s.h"
truelight@0: #include <SDL.h>
truelight@0: 
richk@6720: static FSoundDriver_SDL iFSoundDriver_SDL;
richk@6720: 
truelight@0: static void CDECL fill_sound_buffer(void *userdata, Uint8 *stream, int len)
truelight@0: {
tron@2977: 	MxMixSamples(stream, len / 4);
truelight@0: }
truelight@0: 
richk@6720: const char *SoundDriver_SDL::Start(const char * const *parm)
truelight@0: {
truelight@0: 	SDL_AudioSpec spec;
truelight@193: 
tron@1301: 	const char *s = SdlOpen(SDL_INIT_AUDIO);
tron@423: 	if (s != NULL) return s;
tron@423: 
truelight@0: 	spec.freq = GetDriverParamInt(parm, "hz", 11025);
truelight@0: 	spec.format = AUDIO_S16SYS;
truelight@0: 	spec.channels = 2;
truelight@0: 	spec.samples = 512;
tron@423: 	spec.callback = fill_sound_buffer;
truelight@0: 	SDL_CALL SDL_OpenAudio(&spec, &spec);
truelight@0: 	SDL_CALL SDL_PauseAudio(0);
truelight@0: 	return NULL;
truelight@0: }
truelight@0: 
richk@6720: void SoundDriver_SDL::Stop()
truelight@0: {
truelight@0: 	SDL_CALL SDL_CloseAudio();
truelight@0: 	SdlClose(SDL_INIT_AUDIO);
truelight@0: }
truelight@0: 
Darkvater@6314: #endif /* WITH_SDL */