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/* ScummVM - Graphic Adventure Engine
*
* ScummVM is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
*/
#ifndef BACKENDS_MIXER_DOUBLEBUFFERSDL_H
#define BACKENDS_MIXER_DOUBLEBUFFERSDL_H
#include "backends/mixer/sdl/sdl-mixer.h"
/**
* SDL mixer manager with double buffering support.
*/
class DoubleBufferSDLMixerManager : public SdlMixerManager {
public:
DoubleBufferSDLMixerManager();
virtual ~DoubleBufferSDLMixerManager();
protected:
SDL_mutex *_soundMutex;
SDL_cond *_soundCond;
SDL_Thread *_soundThread;
bool _soundThreadIsRunning;
bool _soundThreadShouldQuit;
byte _activeSoundBuf;
uint _soundBufSize;
byte *_soundBuffers[2];
/**
* Handles and swap the sound buffers
*/
void mixerProducerThread();
/**
* Finish the mixer manager
*/
void deinitThreadedMixer();
/**
* Callback entry point for the sound thread
*/
static int SDLCALL mixerProducerThreadEntry(void *arg);
virtual void startAudio();
virtual void callbackHandler(byte *samples, int len);
};
#endif
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