Logo Search packages:      
Sourcecode: scummvm version File versions  Download package

adlibmusic.h

/* 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 *
 * $Header: /cvsroot/scummvm/scummvm/sky/music/adlibmusic.h,v 1.14.2.1 2005/10/18 02:11:26 sev Exp $
 *
 */

#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

Generated by  Doxygen 1.6.0   Back to index