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101 lines
2.3 KiB
C++
101 lines
2.3 KiB
C++
/* ScummVM - Scumm Interpreter
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* Copyright (C) 2001/2002 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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class MidiDriver;
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class MidiStreamer;
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class File;
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struct MidiEvent;
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class MidiPlayer {
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public:
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MidiPlayer();
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bool _midi_sfx_toggle;
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void read_all_songs (File *in, uint music);
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void read_all_songs_old (File *in, uint music, uint16 size);
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void read_all_songs_old (File *in, uint music);
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void initialize();
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void shutdown();
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void play();
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void pause (bool b);
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int get_volume();
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void set_volume (int volume);
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void set_driver (MidiDriver *md);
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private:
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struct Track {
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uint32 a;
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uint32 data_size;
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uint32 data_cur_size;
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byte *data_ptr;
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byte *data_cur_ptr;
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uint32 delay;
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byte last_cmd;
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};
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struct Song {
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uint ppqn;
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uint midi_format;
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uint num_tracks;
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Track *tracks;
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};
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struct NoteRec {
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uint32 delay;
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byte cmd;
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byte param_1;
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byte param_2;
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uint cmd_length;
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byte *sysex_data;
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};
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MidiStreamer *_midiDriver;
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uint _lastDelay;
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Song *_currentSong;
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Song _songs[8];
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byte _volumeTable[16]; // 0-127
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byte _masterVolume; // 0-255
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bool _paused;
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void read_mthd(File *in, Song *s, bool old, uint music, uint16 size);
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void read_one_song(File *in, Song *s, uint music, uint16 size = 0);
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static uint32 track_read_gamma(Track *t);
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static byte track_read_byte(Track *t);
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int fill (MidiEvent *me, int num_event);
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bool fill_helper (NoteRec *nr, MidiEvent *me);
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void reset_tracks();
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void read_next_note(Track *t, NoteRec *nr);
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void unload();
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static int on_fill(void *param, MidiEvent *ev, int num);
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};
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#endif
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