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

Files @ r6454:106dbc6c677f

Branch filter:

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

r6454:106dbc6c677f 849 B text/x-c Show Annotation Show as Raw Download as Raw

maedhros

(svn r9613) -Feature: Make it possible to have some control over the town growth. The
default rate is TTD's original rate, and to approximate OpenTTD's previous
behaviour the rate should be set to "Fast" or "Very Fast". Town growth can be
switched off entirely, and if so, buildings will not be rebuilt. It is also
possible to specify a proportion of towns that grow twice as fast as the
others.

/* $Id$ */

#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 */