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65 lines
1.7 KiB
C++
65 lines
1.7 KiB
C++
/* ScummVM - Scumm Interpreter
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* Copyright (C) 2003-2005 The ScummVM project
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*
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* $Header$
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*
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*/
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#ifndef ADLIBMUSIC_H
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#define ADLIBMUSIC_H
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#include "sky/music/musicbase.h"
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#include "sound/audiostream.h"
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#include "sound/fmopl.h"
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namespace Audio {
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class Mixer;
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}
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namespace Sky {
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class AdlibMusic : public AudioStream, public MusicBase {
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public:
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AdlibMusic(Audio::Mixer *pMixer, Disk *pDisk);
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~AdlibMusic(void);
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virtual void setVolume(uint8 volume);
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// AudioStream API
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int readBuffer(int16 *buffer, const int numSamples) {
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premixerCall(buffer, numSamples / 2);
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return numSamples;
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}
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bool isStereo() const { return true; }
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bool endOfData() const { return false; }
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int getRate() const { return _sampleRate; }
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private:
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FM_OPL *_opl;
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Audio::Mixer *_mixer;
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uint8 *_initSequence;
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uint32 _sampleRate, _nextMusicPoll;
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virtual void setupPointers(void);
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virtual void setupChannels(uint8 *channelData);
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virtual void startDriver(void);
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void premixerCall(int16 *buf, uint len);
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};
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} // End of namespace Sky
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#endif //ADLIBMUSIC_H
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