scummvm/engines/saga/music.h
2011-05-12 01:16:22 +02:00

111 lines
2.7 KiB
C++

/* 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.
*
*/
// Music class
#ifndef SAGA_MUSIC_H
#define SAGA_MUSIC_H
#include "audio/midiplayer.h"
#include "audio/midiparser.h"
#include "audio/mixer.h"
#include "audio/decoders/mp3.h"
#include "audio/decoders/vorbis.h"
#include "audio/decoders/flac.h"
#include "common/mutex.h"
namespace Saga {
enum MusicFlags {
MUSIC_NORMAL = 0,
MUSIC_LOOP = 0x0001,
MUSIC_DEFAULT = 0xffff
};
class MusicDriver : public Audio::MidiPlayer {
public:
MusicDriver();
void play(SagaEngine *vm, ByteArray *buffer, bool loop);
virtual void pause();
virtual void resume();
bool isAdlib() const { return _driverType == MT_ADLIB; }
// FIXME
bool isPlaying() const { return _parser && _parser->isPlaying(); }
// MidiDriver_BASE interface implementation
virtual void send(uint32 b);
virtual void metaEvent(byte type, byte *data, uint16 length);
protected:
MusicType _driverType;
bool _isGM;
};
class Music {
public:
Music(SagaEngine *vm, Audio::Mixer *mixer);
~Music();
bool isPlaying();
bool hasDigitalMusic() { return _digitalMusic; }
void play(uint32 resourceId, MusicFlags flags = MUSIC_DEFAULT);
void pause();
void resume();
void stop();
void setVolume(int volume, int time = 1);
int getVolume() { return _currentVolume; }
Common::Array<int32> _songTable;
private:
SagaEngine *_vm;
Audio::Mixer *_mixer;
MusicDriver *_player;
Audio::SoundHandle _musicHandle;
uint32 _trackNumber;
int _targetVolume;
int _currentVolume;
int _currentVolumePercent;
bool _digitalMusic;
ResourceContext *_musicContext;
ResourceContext *_digitalMusicContext;
static void musicVolumeGaugeCallback(void *refCon);
static void onTimer(void *refCon);
void musicVolumeGauge();
ByteArray *_currentMusicBuffer;
ByteArray _musicBuffer[2];
};
} // End of namespace Saga
#endif