rlm@1: // VisualBoyAdvance - Nintendo Gameboy/GameboyAdvance (TM) emulator.
rlm@1: // Copyright (C) 2008 VBA-M development team
rlm@1: 
rlm@1: // This program is free software; you can redistribute it and/or modify
rlm@1: // it under the terms of the GNU General Public License as published by
rlm@1: // the Free Software Foundation; either version 2, or(at your option)
rlm@1: // any later version.
rlm@1: //
rlm@1: // This program is distributed in the hope that it will be useful,
rlm@1: // but WITHOUT ANY WARRANTY; without even the implied warranty of
rlm@1: // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
rlm@1: // GNU General Public License for more details.
rlm@1: //
rlm@1: // You should have received a copy of the GNU General Public License
rlm@1: // along with this program; if not, write to the Free Software Foundation,
rlm@1: // Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
rlm@1: 
rlm@1: #ifndef __VBA_SOUND_SDL_H__
rlm@1: #define __VBA_SOUND_SDL_H__
rlm@1: 
rlm@1: #include "SoundDriver.h"
rlm@1: #include "RingBuffer.h"
rlm@1: 
rlm@1: #include <SDL.h>
rlm@1: 
rlm@1: const int SDL_SAMPLE_RATE = 44100;
rlm@1: 
rlm@1: class SoundSDL: public SoundDriver
rlm@1: {
rlm@1: public:
rlm@1: 	SoundSDL();
rlm@1: 	virtual ~SoundSDL();
rlm@1: 
rlm@1: 	virtual bool init();
rlm@1: 	virtual void pause();
rlm@1: 	virtual void reset();
rlm@1: 	virtual void resume();
rlm@1: 	virtual void write(u16 * finalWave, int length);
rlm@1: 	virtual bool setThrottle(unsigned short throttle);
rlm@1: 
rlm@1: //private:
rlm@1: 	RingBuffer<u16> _rbuf;
rlm@1: 
rlm@1: 	SDL_cond  * _cond;
rlm@1: 	SDL_mutex * _mutex;
rlm@1: 
rlm@1: 	bool _initialized;
rlm@1: 
rlm@1: 	// Defines what delay in seconds we keep in the sound buffer
rlm@1: 	static const float _delay;
rlm@1: 
rlm@1: 	static void soundCallback(void *data, u8 *stream, int length);
rlm@1: 	virtual void read(u16 * stream, int length);
rlm@1: };
rlm@1: 
rlm@1: #endif // __VBA_SOUND_SDL_H__