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/* 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.
*
* $URL$
* $Id$
*
*/
#ifndef QUEEN_MUSIC_H
#define QUEEN_MUSIC_H
#include "common/util.h"
#include "common/mutex.h"
#include "common/random.h"
#include "audio/mididrv.h"
class MidiParser;
namespace Queen {
struct TuneData;
class QueenEngine;
class MidiMusic : public MidiDriver_BASE {
public:
MidiMusic(QueenEngine *vm);
~MidiMusic();
void setVolume(int volume);
int getVolume() const { return _masterVolume; }
void playSong(uint16 songNum);
void stopSong() { stopMusic(); }
void playMusic();
void stopMusic();
void setLoop(bool loop) { _isLooping = loop; }
void queueTuneList(int16 tuneList);
bool queueSong(uint16 songNum);
void queueClear();
void toggleVChange();
// MidiDriver_BASE interface implementation
virtual void send(uint32 b);
virtual void metaEvent(byte type, byte *data, uint16 length);
protected:
enum {
MUSIC_QUEUE_SIZE = 14
};
void queueUpdatePos();
uint8 randomQueuePos();
void onTimer();
uint32 songOffset(uint16 songNum) const;
uint32 songLength(uint16 songNum) const;
static void timerCallback(void *refCon) { ((MidiMusic *)refCon)->onTimer(); }
MidiDriver *_driver;
MidiParser *_parser;
MidiChannel *_channelsTable[16];
byte _channelsVolume[16];
bool _adlib;
bool _nativeMT32;
Common::Mutex _mutex;
Common::RandomSource _rnd;
bool _isPlaying;
bool _isLooping;
bool _randomLoop;
byte _masterVolume;
uint8 _queuePos;
int16 _currentSong;
int16 _lastSong; //first song from previous queue
int16 _songQueue[MUSIC_QUEUE_SIZE];
uint16 _numSongs;
uint16 *_buf;
uint32 _musicDataSize;
bool _vToggle;
byte *_musicData;
const TuneData *_tune;
};
} // End of namespace Queen
#endif
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