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/* ScummVM - Scumm Interpreter
* Copyright (C) 2001-2005 The ScummVM project
*
* 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
* $Header$
*
*/
#ifndef SIMON_MIDI_H
#define SIMON_MIDI_H
#include "sound/mididrv.h"
#include "sound/midiparser.h"
class File;
class OSystem;
namespace Simon {
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:
OSystem *_system;
OSystem::MutexRef _mutex;
MidiDriver *_driver;
bool _map_mt32_to_gm;
bool _passThrough;
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
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 (OSystem *system);
virtual ~MidiPlayer();
void loadSMF (File *in, int song, bool sfx = false);
void loadMultipleSMF (File *in, bool sfx = false);
void loadXMIDI (File *in, bool sfx = false);
void loadS1D (File *in, bool sfx = false);
void mapMT32toGM (bool map);
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 get_volume() { return _masterVolume; }
void set_volume (int volume);
void set_driver (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 (void) { return _driver ? _driver->getBaseTempo() : 0; }
// Channel allocation functions
MidiChannel *allocateChannel() { return 0; }
MidiChannel *getPercussionChannel() { return 0; }
};
} // End of namespace Simon
#endif
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