#include "stdafx.h"

#include "openttd.h"

#include "driver.h"

#include "mixer.h"

#include "sdl.h"

#include "sound/sdl_s.h"

#include <SDL.h>

static void CDECL fill_sound_buffer(void *userdata, Uint8 *stream, int len)

{

	MxMixSamples(_mixer, stream, len / 4);

}

static const char *SdlSoundStart(const char * const *parm)

{

	SDL_AudioSpec spec;

	const char *s = SdlOpen(SDL_INIT_AUDIO);

	if (s != NULL) return s;

	spec.freq = GetDriverParamInt(parm, "hz", 11025);

	spec.format = AUDIO_S16SYS;

	spec.channels = 2;

	spec.samples = 512;

	spec.callback = fill_sound_buffer;

	SDL_CALL SDL_OpenAudio(&spec, &spec);

	SDL_CALL SDL_PauseAudio(0);

	return NULL;

}

static void SdlSoundStop(void)

{

	SDL_CALL SDL_CloseAudio();

	SdlClose(SDL_INIT_AUDIO);

}

const HalSoundDriver _sdl_sound_driver = {

	SdlSoundStart,

	SdlSoundStop,

};