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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 GROOVIE_MUSIC_H
#define GROOVIE_MUSIC_H
#include "common/array.h"
#include "common/mutex.h"
#include "audio/mididrv.h"
class MidiParser;
namespace Groovie {
class GroovieEngine;
class MusicPlayer {
public:
MusicPlayer(GroovieEngine *vm);
virtual ~MusicPlayer();
void playSong(uint32 fileref);
void setBackgroundSong(uint32 fileref);
void playCD(uint8 track);
void startBackground();
void frameTick();
void setBackgroundDelay(uint16 delay);
// Volume
void setUserVolume(uint16 volume);
void setGameVolume(uint16 volume, uint16 time);
private:
// Song playback
bool play(uint32 fileref, bool loop);
bool _isPlaying;
uint32 _backgroundFileRef;
uint8 _prevCDtrack;
uint16 _backgroundDelay;
// Volume fading
uint32 _fadingStartTime;
uint16 _fadingStartVolume;
uint16 _fadingEndVolume;
uint16 _fadingDuration;
void applyFading();
protected:
GroovieEngine *_vm;
// Callback
static void onTimer(void *data);
virtual void onTimerInternal() {}
Common::Mutex _mutex;
// User volume
uint16 _userVolume;
// Game volume
uint16 _gameVolume;
// These are specific for each type of music
virtual void updateVolume() = 0;
virtual bool load(uint32 fileref, bool loop) = 0;
virtual void unload();
};
class MusicPlayerMidi : public MusicPlayer, public MidiDriver {
public:
MusicPlayerMidi(GroovieEngine *vm);
~MusicPlayerMidi();
// MidiDriver interface
int open();
void close();
void send(uint32 b);
void metaEvent(byte type, byte *data, uint16 length);
void setTimerCallback(void *timer_param, Common::TimerManager::TimerProc timer_proc);
uint32 getBaseTempo();
MidiChannel *allocateChannel();
MidiChannel *getPercussionChannel();
private:
// Channel volumes
byte _chanVolumes[0x10];
void updateChanVolume(byte channel);
void endTrack();
protected:
byte *_data;
MidiParser *_midiParser;
MidiDriver *_driver;
void onTimerInternal();
void updateVolume();
void unload();
bool loadParser(Common::SeekableReadStream *stream, bool loop);
};
class MusicPlayerXMI : public MusicPlayerMidi {
public:
MusicPlayerXMI(GroovieEngine *vm, const Common::String >lName);
~MusicPlayerXMI();
void send(uint32 b);
protected:
bool load(uint32 fileref, bool loop);
private:
// Channel banks
byte _chanBanks[0x10];
// Output music type
uint8 _musicType;
// Timbres
class Timbre {
public:
Timbre() : data(NULL) {}
byte patch;
byte bank;
uint32 size;
byte *data;
};
Common::Array<Timbre> _timbres;
void loadTimbres(const Common::String &filename);
void clearTimbres();
void setTimbreAD(byte channel, const Timbre &timbre);
void setTimbreMT(byte channel, const Timbre &timbre);
};
class MusicPlayerMac : public MusicPlayerMidi {
public:
MusicPlayerMac(GroovieEngine *vm);
protected:
bool load(uint32 fileref, bool loop);
private:
Common::SeekableReadStream *decompressMidi(Common::SeekableReadStream *stream);
};
} // End of Groovie namespace
#endif // GROOVIE_MUSIC_H
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