2 Copyright (C) 1998-99 Paul Barton-Davis
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.
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.
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., 675 Mass Ave, Cambridge, MA 02139, USA.
20 #ifndef __midichannel_h__
21 #define __midichannel_h__
25 #include "pbd/signals.h"
26 #include "midi++/parser.h"
32 /** Stateful MIDI channel class.
34 * This remembers various useful information about the current 'state' of a
35 * MIDI channel (eg current pitch bend value).
37 class LIBMIDIPP_API Channel : public PBD::ScopedConnectionList {
40 Channel (byte channel_number, Port &);
42 Port &midi_port() { return _port; }
43 byte channel() { return _channel_number; }
44 byte program() { return _program_number; }
45 unsigned short bank() { return _bank_number; }
46 byte pressure () { return _chanpress; }
47 byte poly_pressure (byte n) { return _polypress[n]; }
49 byte last_note_on () {
52 byte last_on_velocity () {
53 return _last_on_velocity;
55 byte last_note_off () {
56 return _last_note_off;
58 byte last_off_velocity () {
59 return _last_off_velocity;
62 pitchbend_t pitchbend () {
66 controller_value_t controller_value (byte n) {
67 return _controller_val[n%128];
70 controller_value_t *controller_addr (byte n) {
71 return &_controller_val[n%128];
74 void set_controller (byte n, byte val) {
75 _controller_val[n%128] = val;
78 bool channel_msg (byte id, byte val1, byte val2, timestamp_t timestamp);
79 bool all_notes_off (timestamp_t timestamp) {
80 return channel_msg (MIDI::controller, 123, 0, timestamp);
83 bool control (byte id, byte value, timestamp_t timestamp) {
84 return channel_msg (MIDI::controller, id, value, timestamp);
87 bool note_on (byte note, byte velocity, timestamp_t timestamp) {
88 return channel_msg (MIDI::on, note, velocity, timestamp);
91 bool note_off (byte note, byte velocity, timestamp_t timestamp) {
92 return channel_msg (MIDI::off, note, velocity, timestamp);
95 bool aftertouch (byte value, timestamp_t timestamp) {
96 return channel_msg (MIDI::chanpress, value, 0, timestamp);
99 bool poly_aftertouch (byte note, byte value, timestamp_t timestamp) {
100 return channel_msg (MIDI::polypress, note, value, timestamp);
103 bool program_change (byte value, timestamp_t timestamp) {
104 return channel_msg (MIDI::program, value, 0, timestamp);
107 bool pitchbend (byte msb, byte lsb, timestamp_t timestamp) {
108 return channel_msg (MIDI::pitchbend, lsb, msb, timestamp);
113 void connect_signals ();
118 /* Current channel values */
119 byte _channel_number;
120 unsigned short _bank_number;
121 byte _program_number;
127 byte _polypress[128];
128 bool _controller_14bit[128];
129 controller_value_t _controller_val[128];
130 byte _controller_msb[128];
131 byte _controller_lsb[128];
133 byte _last_on_velocity;
135 byte _last_off_velocity;
136 pitchbend_t _pitch_bend;
142 void reset (timestamp_t timestamp, framecnt_t nframes, bool notes_off = true);
144 void process_note_off (Parser &, EventTwoBytes *);
145 void process_note_on (Parser &, EventTwoBytes *);
146 void process_controller (Parser &, EventTwoBytes *);
147 void process_polypress (Parser &, EventTwoBytes *);
148 void process_program_change (Parser &, byte);
149 void process_chanpress (Parser &, byte);
150 void process_pitchbend (Parser &, pitchbend_t);
151 void process_reset (Parser &);
156 #endif // __midichannel_h__