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https://github.com/libretro/scummvm.git
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114 lines
2.3 KiB
C++
114 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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struct MidiEvent;
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class MidiPlayer {
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public:
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void read_all_songs(FILE *in);
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void read_all_songs_old(FILE *in);
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void initialize();
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void shutdown();
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void play();
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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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MidiDriver *_md;
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FILE *_input;
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uint _midi_var10, _midi_5;
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bool _midi_var9;
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byte _midi_var1;
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bool _shutting_down;
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uint _midi_var8;
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uint _midi_var11;
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uint32 _midi_tempo;
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Track *_midi_tick_track_ptr;
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Track *_midi_track_ptr;
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int16 _midi_song_id;
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int16 _midi_song_id_2;
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int16 _midi_var2;
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Song *_midi_cur_song_ptr;
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uint32 _midi_volume_table[16];
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Song _midi_songs[8];
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void read_mthd(Song *s, bool old);
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void read_from_file(void *dst, uint size);
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void read_one_song(Song *s);
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byte read_byte_from_file();
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uint32 read_uint32_from_file();
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uint16 read_uint16_from_file();
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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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