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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.
*
*/
#ifndef GOB_SOUND_MUSPLAYER_H
#define GOB_SOUND_MUSPLAYER_H
#include "common/str.h"
#include "common/array.h"
#include "gob/sound/adlib.h"
namespace Common {
class SeekableReadStream;
}
namespace Gob {
/** A player for the AdLib MUS format, with the instrument information in SND files.
*
* In the Gob engine, those files are usually named .MDY and .TBR instead.
*/
class MUSPlayer : public AdLib {
public:
MUSPlayer(Audio::Mixer &mixer);
~MUSPlayer();
/** Load the instruments (.SND or .TBR) */
bool loadSND(Common::SeekableReadStream &snd);
/** Load the melody (.MUS or .MDY) */
bool loadMUS(Common::SeekableReadStream &mus);
void unload();
uint32 getSongID() const;
const Common::String &getSongName() const;
protected:
// AdLib interface
uint32 pollMusic(bool first);
void rewind();
private:
struct Timbre {
Common::String name;
uint16 params[kOperatorsPerVoice * kParamCount];
};
Common::Array<Timbre> _timbres;
byte *_songData;
uint32 _songDataSize;
const byte *_playPos;
uint32 _songID;
Common::String _songName;
uint8 _ticksPerBeat;
uint8 _beatsPerMeasure;
uint8 _soundMode;
uint8 _pitchBendRange;
uint16 _baseTempo;
uint16 _tempo;
byte _lastCommand;
void unloadSND();
void unloadMUS();
bool readSNDHeader (Common::SeekableReadStream &snd, int &timbreCount, int &timbrePos);
bool readSNDTimbres(Common::SeekableReadStream &snd, int timbreCount, int timbrePos);
bool readMUSHeader(Common::SeekableReadStream &mus);
bool readMUSSong (Common::SeekableReadStream &mus);
uint32 getSampleDelay(uint16 delay) const;
void setInstrument(uint8 voice, uint8 instrument);
void skipToTiming();
static bool readString(Common::SeekableReadStream &stream, Common::String &string, byte *buffer, uint size);
};
} // End of namespace Gob
#endif // GOB_SOUND_MUSPLAYER_H
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