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sound.h

/* ScummVM - Scumm Interpreter
 * Copyright (C) 2004-2005 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/kyra/sound.h,v 1.6.2.1 2005/10/18 02:11:19 sev Exp $
 *
 */

#ifndef SOUND_H
#define SOUND_H

#include "common/stdafx.h"
#include "common/scummsys.h"
#include "sound/mididrv.h"
#include "sound/midiparser.h"
#include "kyra/kyra.h"

namespace Kyra {

class MusicPlayer : public MidiDriver {
public:

      MusicPlayer(MidiDriver *driver, KyraEngine *engine);
      ~MusicPlayer();

      void setVolume(int volume);
      int getVolume() { return _volume; }

      void hasNativeMT32(bool nativeMT32) { _nativeMT32 = nativeMT32; }
      bool isMT32() { return _nativeMT32; }

      void playMusic(const char* file);
      void playMusic(uint8* data, uint32 size);
      void stopMusic();

      void playTrack(uint8 track, bool looping = true);
      void haltTrack() { _isPlaying = false; }
      void startTrack() { _isPlaying = true; }
      void setPassThrough(bool b)   { _passThrough = b; }

      void loadSoundEffectFile(const char* file);
      void loadSoundEffectFile(uint8* data, uint32 size);
      void stopSoundEffect();

      void playSoundEffect(uint8 track);

      void beginFadeOut();

      //MidiDriver interface implementation
      int open();
      void close();
      void send(uint32 b);
      void metaEvent(byte type, byte *data, uint16 length);

      void setTimerCallback(void *timerParam, void (*timerProc)(void *)) { }
      uint32 getBaseTempo(void) { return _driver ? _driver->getBaseTempo() : 0; }

      //Channel allocation functions
      MidiChannel *allocateChannel()            { return 0; }
      MidiChannel *getPercussionChannel() { return 0; }

protected:

      static void onTimer(void *data);

      MidiChannel* _channel[32];
      int _virChannel[16];
      uint8 _channelVolume[16];
      MidiDriver* _driver;
      bool _nativeMT32;
      bool _passThrough;
      uint8 _volume;
      bool _isPlaying;
      bool _sfxIsPlaying;
      uint32 _fadeStartTime;
      bool _fadeMusicOut;
      bool _isLooping;
      bool _eventFromMusic;
      MidiParser *_parser;
      byte *_parserSource;
      MidiParser *_soundEffect;
      byte *_soundEffectSource;
      KyraEngine *_engine;
};

} // end of namespace Kyra

#endif

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