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/* ScummVM - Scumm Interpreter
* Copyright (C) 2003-2005 The ScummVM project
*
* 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
* $Header$
*
*/
#ifndef ADLIBMUSIC_H
#define ADLIBMUSIC_H
#include "sky/music/musicbase.h"
#include "sound/audiostream.h"
#include "sound/fmopl.h"
namespace Audio {
class Mixer;
}
namespace Sky {
class AdlibMusic : public AudioStream, public MusicBase {
public:
AdlibMusic(Audio::Mixer *pMixer, Disk *pDisk);
~AdlibMusic(void);
virtual void setVolume(uint8 volume);
// AudioStream API
int readBuffer(int16 *buffer, const int numSamples) {
premixerCall(buffer, numSamples / 2);
return numSamples;
}
bool isStereo() const { return true; }
bool endOfData() const { return false; }
int getRate() const { return _sampleRate; }
private:
FM_OPL *_opl;
Audio::Mixer *_mixer;
uint8 *_initSequence;
uint32 _sampleRate, _nextMusicPoll;
virtual void setupPointers(void);
virtual void setupChannels(uint8 *channelData);
virtual void startDriver(void);
void premixerCall(int16 *buf, uint len);
};
} // End of namespace Sky
#endif //ADLIBMUSIC_H
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