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

sound_midi.h

/* 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.
 *
 * $URL: https://scummvm.svn.sourceforge.net/svnroot/scummvm/scummvm/tags/release-1-2-1/engines/agi/sound_midi.h $
 * $Id: sound_midi.h 49870 2010-06-15 17:14:38Z wjpalenstijn $
 *
 */

// Music class

#ifndef AGI_SOUND_MIDI_H
#define AGI_SOUND_MIDI_H

#include "sound/mididrv.h"
#include "sound/midiparser.h"
#include "common/mutex.h"

namespace Agi {

00037 class MIDISound : public AgiSound {
public:
      MIDISound(uint8 *data, uint32 len, int resnum, SoundMgr &manager);
      ~MIDISound() { free(_data); }
      virtual uint16 type() { return _type; }
00042       uint8 *_data; ///< Raw sound resource data
00043       uint32 _len;  ///< Length of the raw sound resource

protected:
00046       uint16 _type; ///< Sound resource type
};

00049 class SoundGenMIDI : public SoundGen, public MidiDriver {
public:
      SoundGenMIDI(AgiEngine *vm, Audio::Mixer *pMixer);
      ~SoundGenMIDI();

      void play(int resnum);
      void stop();

      bool isPlaying() { return _isPlaying; }
      void setPlaying(bool playing) { _isPlaying = playing; }

      void setVolume(int volume);
      int getVolume() { return _masterVolume; }
      void syncVolume();

      void setNativeMT32(bool b) { _nativeMT32 = b; }
      bool hasNativeMT32() { return _nativeMT32; }
      void pause();
      void resume();
      void setLoop(bool loop) { _looping = loop; }
      void setPassThrough(bool b) { _passThrough = b; }

      void setGM(bool isGM) { _isGM = isGM; }

      // 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 *)) { }
00081       uint32 getBaseTempo() { return _driver ? _driver->getBaseTempo() : 0; }

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

      MidiParser *_parser;
      Common::Mutex _mutex;

private:

      static void onTimer(void *data);
      void setChannelVolume(int channel);

      MidiChannel *_channel[16];
      MidiDriver *_driver;
      MidiParser *_smfParser;
      byte _channelVolume[16];
      bool _nativeMT32;
      bool _isGM;
      bool _passThrough;

      bool _isPlaying;
      bool _looping;
      byte _masterVolume;

      byte *_midiMusicData;

      SoundMgr *_manager;
};

} // End of namespace Agi

#endif

Generated by  Doxygen 1.6.0   Back to index