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

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

r9583:b6e25a00b908 866 B text/x-c Show Annotation Show as Raw Download as Raw

rubidium

(svn r13621) -Fix: building roadbits in the wrong direction on bridges or building roadbits from underneath the bridge to the bridgehead is impossible, so don't silently ignore that error when building over houses and industries is not ignored.

/* $Id$ */

/** @file sdl_s.cpp Playing sound via SDL. */

#ifdef WITH_SDL

#include "../stdafx.h"

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

static FSoundDriver_SDL iFSoundDriver_SDL;

static void CDECL fill_sound_buffer(void *userdata, Uint8 *stream, int len)
{
	MxMixSamples(stream, len / 4);
}

const char *SoundDriver_SDL::Start(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;
}

void SoundDriver_SDL::Stop()
{
	SDL_CALL SDL_CloseAudio();
	SdlClose(SDL_INIT_AUDIO);
}

#endif /* WITH_SDL */