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125 lines
3.3 KiB
C++
125 lines
3.3 KiB
C++
/* ScummVM - Scumm Interpreter
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* Copyright (C) 2001-2005 The ScummVM project
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*
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* $Header$
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*
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*/
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#ifndef SIMON_MIDI_H
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#define SIMON_MIDI_H
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#include "sound/mididrv.h"
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#include "sound/midiparser.h"
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#include "common/mutex.h"
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class File;
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namespace Simon {
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struct MusicInfo {
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MidiParser *parser;
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byte * data;
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byte num_songs; // For Type 1 SMF resources
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byte * songs[16]; // For Type 1 SMF resources
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uint32 song_sizes[16]; // For Type 1 SMF resources
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MidiChannel *channel[16]; // Dynamic remapping of channels to resolve conflicts
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byte volume[16]; // Current channel volume
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MusicInfo() { clear(); }
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void clear() {
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parser = 0; data = 0; num_songs = 0;
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memset (songs, 0, sizeof (songs));
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memset (song_sizes, 0, sizeof (song_sizes));
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memset (channel, 0, sizeof (channel));
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}
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};
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class MidiPlayer : public MidiDriver {
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protected:
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Common::Mutex _mutex;
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MidiDriver *_driver;
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bool _map_mt32_to_gm;
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bool _passThrough;
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MusicInfo _music;
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MusicInfo _sfx;
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MusicInfo *_current; // Allows us to establish current context for operations.
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// These are maintained for both music and SFX
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byte _masterVolume; // 0-255
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bool _paused;
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// These are only used for music.
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byte _currentTrack;
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bool _loopTrack;
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byte _queuedTrack;
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bool _loopQueuedTrack;
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protected:
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static void onTimer (void *data);
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void clearConstructs();
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void clearConstructs (MusicInfo &info);
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void resetVolumeTable();
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public:
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bool _enable_sfx;
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public:
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MidiPlayer (OSystem *system);
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virtual ~MidiPlayer();
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void loadSMF (File *in, int song, bool sfx = false);
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void loadMultipleSMF (File *in, bool sfx = false);
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void loadXMIDI (File *in, bool sfx = false);
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void loadS1D (File *in, bool sfx = false);
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void mapMT32toGM (bool map);
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void setLoop (bool loop);
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void startTrack(int track);
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void queueTrack (int track, bool loop);
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bool isPlaying (bool check_queued = false) { return (_currentTrack != 255 && (_queuedTrack != 255 || !check_queued)); }
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void stop();
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void pause (bool b);
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int get_volume() { return _masterVolume; }
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void set_volume (int volume);
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void set_driver (MidiDriver *md);
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public:
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// MidiDriver interface implementation
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int open();
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void close();
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void send(uint32 b);
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void metaEvent (byte type, byte *data, uint16 length);
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void setPassThrough(bool b) { _passThrough = b; }
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// Timing functions - MidiDriver now operates timers
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void setTimerCallback (void *timer_param, void (*timer_proc) (void *)) { }
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uint32 getBaseTempo (void) { return _driver ? _driver->getBaseTempo() : 0; }
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// Channel allocation functions
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MidiChannel *allocateChannel() { return 0; }
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MidiChannel *getPercussionChannel() { return 0; }
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};
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} // End of namespace Simon
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#endif
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