1 #ifndef __SOUND_SEQ_MIDI_EVENT_H
2 #define __SOUND_SEQ_MIDI_EVENT_H
5 * MIDI byte <-> sequencer event coder
7 * Copyright (C) 1998,99 Takashi Iwai <tiwai@suse.de>,
8 * Jaroslav Kysela <perex@suse.cz>
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
25 #include "asequencer.h"
27 #define MAX_MIDI_EVENT_BUF 256
29 typedef struct snd_midi_event_t snd_midi_event_t;
32 struct snd_midi_event_t {
33 int qlen; /* queue length */
34 int read; /* chars read */
35 int type; /* current event type */
36 unsigned char lastcmd; /* last command (for MIDI state handling) */
37 unsigned char nostat; /* no state flag */
38 int bufsize; /* allocated buffer size */
39 unsigned char *buf; /* input buffer */
43 int snd_midi_event_new(int bufsize, snd_midi_event_t **rdev);
44 int snd_midi_event_resize_buffer(snd_midi_event_t *dev, int bufsize);
45 void snd_midi_event_free(snd_midi_event_t *dev);
46 void snd_midi_event_init(snd_midi_event_t *dev);
47 void snd_midi_event_reset_encode(snd_midi_event_t *dev);
48 void snd_midi_event_reset_decode(snd_midi_event_t *dev);
49 void snd_midi_event_no_status(snd_midi_event_t *dev, int on);
50 /* encode from byte stream - return number of written bytes if success */
51 long snd_midi_event_encode(snd_midi_event_t *dev, unsigned char *buf, long count, snd_seq_event_t *ev);
52 int snd_midi_event_encode_byte(snd_midi_event_t *dev, int c, snd_seq_event_t *ev);
53 /* decode from event to bytes - return number of written bytes if success */
54 long snd_midi_event_decode(snd_midi_event_t *dev, unsigned char *buf, long count, snd_seq_event_t *ev);
56 #endif /* __SOUND_SEQ_MIDI_EVENT_H */