source: roaraudio/roard/include/midi.h @ 2408:c4e95b4e4aa4

Last change on this file since 2408:c4e95b4e4aa4 was 2408:c4e95b4e4aa4, checked in by phi, 15 years ago

ooops, note off and on was swaped

File size: 3.7 KB
Line 
1//midi.h:
2
3/*
4 *      Copyright (C) Philipp 'ph3-der-loewe' Schafft - 2008
5 *
6 *  This file is part of roard a part of RoarAudio,
7 *  a cross-platform sound system for both, home and professional use.
8 *  See README for details.
9 *
10 *  This file is free software; you can redistribute it and/or modify
11 *  it under the terms of the GNU General Public License version 3
12 *  as published by the Free Software Foundation.
13 *
14 *  RoarAudio is distributed in the hope that it will be useful,
15 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
16 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
17 *  GNU General Public License for more details.
18 *
19 *  You should have received a copy of the GNU General Public License
20 *  along with this software; see the file COPYING.  If not, write to
21 *  the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
22 *
23 */
24
25#ifndef _MIDI_H_
26#define _MIDI_H_
27
28#include <roaraudio.h>
29
30#ifdef __linux__
31#include <sys/ioctl.h>
32#include <linux/kd.h>
33#endif
34
35#define MIDI_CB_NOOVERRIDE 0
36#define MIDI_CB_OVERRIDE   1
37
38#define MIDI_RATE    31250
39
40// standard MIDI commands:
41#define MIDI_TYPE_NOTE_OFF      0x80
42#define MIDI_TYPE_NOTE_ON       0x90
43#define MIDI_TYPE_PA            0xA0
44#define MIDI_TYPE_CONTROLER     0xB0
45#define MIDI_TYPE_PROGRAM       0xC0
46#define MIDI_TYPE_MA            0xD0
47#define MIDI_TYPE_PB            0xE0
48#define MIDI_TYPE_SYSEX         0xF0
49#define MIDI_TYPE_CLOCK_TICK    0xF8
50#define MIDI_TYPE_CLOCK_START   0xFA
51#define MIDI_TYPE_CLOCK_STOP    0xFC
52
53// RoarAudio MIDI Commands:
54#define MIDI_TYPE_NONE          0x00
55#define MIDI_TYPE_RAW_PASS      0x10
56#define MIDI_TYPE_RAW_NOPASS    0x20
57
58// controller events:
59#define MIDI_CCE_MAIN_VOL        7
60#define MIDI_CCE_BALANCE         8
61#define MIDI_CCE_PANORAMA       10
62#define MIDI_CCE_LOCAL_CONTR   122
63#define MIDI_CCE_ALL_NOTE_OFF  123
64
65
66#define MIDI_MES_BUFSIZE        4
67#define MIDI_READ_SIZE          256 /* this should be big enoth in both cfreq=20..100Hz mode */
68
69#define MIDI_MFLAG_FREE_DP     (1<<0)
70
71#define MIDI_INITED_MAIN        0x01
72#define MIDI_INITED_CB          0x02
73#define MIDI_INITED_CLOCK       0x04
74
75struct {
76 int init;
77 int inited;
78 int init_cb;
79 char * console_dev;
80} midi_config;
81
82struct midi_message {
83 unsigned char   type;
84 unsigned char   channel;
85 unsigned char   flags;
86 unsigned char   kk;
87 unsigned char   vv;
88 size_t          datalen;
89 unsigned char * dataptr;
90 union {
91  unsigned char           ldata[MIDI_MES_BUFSIZE];
92  struct roar_note_octave note;
93 }               d;
94};
95
96struct {
97 struct roar_buffer * buf;
98} g_midi_mess;
99
100struct {
101 int      console;
102 int      stream;
103 uint32_t stoptime;
104 int      playing;
105} g_midi_cb;
106
107struct {
108 int stream;
109 uint_least32_t bph; // beats per hour
110 uint_least32_t spt; // samples per tick
111 uint32_t       nt;  // time of next tick
112} g_midi_clock;
113
114
115// general midi interface:
116int midi_init_config(void);
117
118int midi_init (void);
119int midi_free (void);
120
121int midi_update(void);
122int midi_reinit(void);
123
124// streams:
125int midi_check_stream  (int id);
126int midi_send_stream   (int id);
127
128int midi_conv_midi2mes (int id);
129int midi_conv_mes2midi (int id);
130
131int midi_new_bufmes    (struct roar_buffer ** buf, struct midi_message ** mes);
132int midi_add_buf       (int id, struct roar_buffer * buf);
133
134// bridges:
135int midi_check_bridge  (int id);
136
137// clock:
138int midi_clock_init (void);
139int midi_clock_set_bph (uint_least32_t bph);
140int midi_clock_tick (void);
141
142// cb = console beep
143int midi_cb_init(void);
144int midi_cb_free(void);
145int midi_cb_play(float t, float freq, int override);
146int midi_cb_update (void);
147int midi_cb_start(float freq);
148int midi_cb_stop (void);
149int midi_cb_readbuf(void);
150
151// dummys:
152int     midi_vio_set_dummy(int stream);
153int     midi_vio_ok(struct roar_vio_calls * vio, ...);
154
155#endif
156
157//ll
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