Jack2  1.9.9
midi_pack.h
1 /*
2  * Copyright (c) 2006,2007 Dmitry S. Baikov
3  *
4  * This program is free software; you can redistribute it and/or modify
5  * it under the terms of the GNU General Public License as published by
6  * the Free Software Foundation; either version 2 of the License, or
7  * (at your option) any later version.
8  *
9  * This program is distributed in the hope that it will be useful,
10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12  * GNU General Public License for more details.
13  *
14  * You should have received a copy of the GNU General Public License
15  * along with this program; if not, write to the Free Software
16  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
17  */
18 
19 #ifndef __jack_midi_pack_h__
20 #define __jack_midi_pack_h__
21 
22 typedef struct
23 {
24  int running_status;
25 }
27 
28 static inline
29 void midi_pack_reset(midi_pack_t *p)
30 {
31  p->running_status = 0;
32 }
33 
34 static
35 void midi_pack_event(midi_pack_t *p, jack_midi_event_t *e)
36 {
37  if (e->buffer[0] >= 0x80 && e->buffer[0] < 0xF0) { // Voice Message
38  if (e->buffer[0] == p->running_status) {
39  e->buffer++;
40  e->size--;
41  } else
42  p->running_status = e->buffer[0];
43  } else if (e->buffer[0] < 0xF8) { // not System Realtime
44  p->running_status = 0;
45  }
46 }
47 
48 #endif /* __jack_midi_pack_h__ */
jack_midi_data_t * buffer
Definition: JackMidiPort.h:37