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

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

r10062:9a719b26b56e 866 B text/x-c Show Annotation Show as Raw Download as Raw

rubidium

(svn r14229) -Feature: allow overriding the palette of the base GRFs. This way you can play with NewGRFs made for the Windows palette with the DOS palettes base GRFs (and vice versa). Note that for this to work correctly ALL NewGRFs must use the same palette; mix and match is not yet supported.

/* $Id$ */

/** @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 */