cpp/openttd-patchpack/source Files · src/sound/sdl_s.cpp

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Location: cpp/openttd-patchpack/source/src/sound/sdl_s.cpp

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miham

(svn r9392) -Update: WebTranslator2 update to 2007-03-21 19:54:29
brazilian_portuguese - 2 changed by fukumori (2)
danish - 11 fixed, 2 changed by ThomasA (13)
esperanto - 8 fixed by LaPingvino (8)
estonian - 28 fixed by vermon (27), t2t2 (1)
finnish - 19 fixed, 66 changed by pallokala (9), habazi (76)
french - 9 changed by Skiper (9)
italian - 1 fixed, 49 changed by sidew (50)
traditional_chinese - 2 fixed by thomasau (2)
ukrainian - 9 changed by mad (9)

/* $Id$ */

#ifdef WITH_SDL

#include "../stdafx.h"

#include "../driver.h"
#include "../mixer.h"
#include "../sdl.h"
#include "sdl_s.h"
#include <SDL.h>

static void CDECL fill_sound_buffer(void *userdata, Uint8 *stream, int len)
{
	MxMixSamples(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()
{
	SDL_CALL SDL_CloseAudio();
	SdlClose(SDL_INIT_AUDIO);
}

const HalSoundDriver _sdl_sound_driver = {
	SdlSoundStart,
	SdlSoundStop,
};

#endif /* WITH_SDL */