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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 AGOS_MIDI_H
#define AGOS_MIDI_H
#include "audio/mididrv.h"
#include "audio/midiparser.h"
#include "common/mutex.h"
namespace Common {
class File;
}
namespace AGOS {
struct MusicInfo {
MidiParser *parser;
byte *data;
byte num_songs; // For Type 1 SMF resources
byte *songs[16]; // For Type 1 SMF resources
uint32 song_sizes[16]; // For Type 1 SMF resources
MidiChannel *channel[16]; // Dynamic remapping of channels to resolve conflicts
byte volume[16]; // Current channel volume
MusicInfo() { clear(); }
void clear() {
parser = 0; data = 0; num_songs = 0;
memset(songs, 0, sizeof(songs));
memset(song_sizes, 0, sizeof(song_sizes));
memset(channel, 0, sizeof(channel));
}
};
class MidiPlayer : public MidiDriver {
protected:
Common::Mutex _mutex;
MidiDriver *_driver;
bool _map_mt32_to_gm;
bool _passThrough;
bool _nativeMT32;
MusicInfo _music;
MusicInfo _sfx;
MusicInfo *_current; // Allows us to establish current context for operations.
// These are maintained for both music and SFX
byte _masterVolume; // 0-255
byte _musicVolume;
byte _sfxVolume;
bool _paused;
// These are only used for music.
byte _currentTrack;
bool _loopTrack;
byte _queuedTrack;
bool _loopQueuedTrack;
protected:
static void onTimer(void *data);
void clearConstructs();
void clearConstructs(MusicInfo &info);
void resetVolumeTable();
public:
bool _enable_sfx;
public:
MidiPlayer();
virtual ~MidiPlayer();
void loadSMF(Common::File *in, int song, bool sfx = false);
void loadMultipleSMF(Common::File *in, bool sfx = false);
void loadXMIDI(Common::File *in, bool sfx = false);
void loadS1D(Common::File *in, bool sfx = false);
void mapMT32toGM(bool map);
void setNativeMT32(bool nativeMT32) { _nativeMT32 = nativeMT32; }
void setLoop(bool loop);
void startTrack(int track);
void queueTrack(int track, bool loop);
bool isPlaying(bool check_queued = false) { return (_currentTrack != 255 && (_queuedTrack != 255 || !check_queued)); }
void stop();
void pause(bool b);
int getMusicVolume() { return _musicVolume; }
int getSFXVolume() { return _sfxVolume; }
void setVolume(int musicVol, int sfxVol);
void setDriver(MidiDriver *md);
public:
// MidiDriver interface implementation
int open();
void close();
void send(uint32 b);
void metaEvent(byte type, byte *data, uint16 length);
void setPassThrough(bool b) { _passThrough = b; }
// Timing functions - MidiDriver now operates timers
void setTimerCallback(void *timer_param, void (*timer_proc) (void *)) { }
uint32 getBaseTempo() { return _driver ? _driver->getBaseTempo() : 0; }
// Channel allocation functions
MidiChannel *allocateChannel() { return 0; }
MidiChannel *getPercussionChannel() { return 0; }
};
} // End of namespace AGOS
#endif
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