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.
21 #ifndef __midichannel_h__
22 #define __midichannel_h__
26 #include <sigc++/sigc++.h>
28 #include <midi++/types.h>
29 #include <midi++/parser.h>
35 /** Stateful MIDI channel class.
37 * This remembers various useful information about the current 'state' of a
38 * MIDI channel (eg current pitch bend value).
40 class Channel : public sigc::trackable {
43 Channel (byte channel_number, Port &);
45 Port &midi_port() { return _port; }
46 byte channel() { return _channel_number; }
47 byte program() { return _program_number; }
48 byte bank() { return _bank_number; }
49 byte pressure () { return _chanpress; }
50 byte poly_pressure (byte n) { return _polypress[n]; }
52 byte last_note_on () {
55 byte last_on_velocity () {
56 return _last_on_velocity;
58 byte last_note_off () {
59 return _last_note_off;
61 byte last_off_velocity () {
62 return _last_off_velocity;
65 pitchbend_t pitchbend () {
69 controller_value_t controller_value (byte n) {
70 return _controller_val[n%128];
73 controller_value_t *controller_addr (byte n) {
74 return &_controller_val[n%128];
77 void set_controller (byte n, byte val) {
78 _controller_val[n%128] = val;
81 bool channel_msg (byte id, byte val1, byte val2, timestamp_t timestamp);
82 bool all_notes_off (timestamp_t timestamp) {
83 return channel_msg (MIDI::controller, 123, 0, timestamp);
86 bool control (byte id, byte value, timestamp_t timestamp) {
87 return channel_msg (MIDI::controller, id, value, timestamp);
90 bool note_on (byte note, byte velocity, timestamp_t timestamp) {
91 return channel_msg (MIDI::on, note, velocity, timestamp);
94 bool note_off (byte note, byte velocity, timestamp_t timestamp) {
95 return channel_msg (MIDI::off, note, velocity, timestamp);
98 bool aftertouch (byte value, timestamp_t timestamp) {
99 return channel_msg (MIDI::chanpress, value, 0, timestamp);
102 bool poly_aftertouch (byte note, byte value, timestamp_t timestamp) {
103 return channel_msg (MIDI::polypress, note, value, timestamp);
106 bool program_change (byte value, timestamp_t timestamp) {
107 return channel_msg (MIDI::program, value, 0, timestamp);
110 bool pitchbend (byte msb, byte lsb, timestamp_t timestamp) {
111 return channel_msg (MIDI::pitchbend, lsb, msb, timestamp);
116 void connect_input_signals ();
117 void connect_output_signals ();
122 /* Current channel values */
123 byte _channel_number;
125 byte _program_number;
131 byte _polypress[128];
132 bool _controller_14bit[128];
133 controller_value_t _controller_val[128];
134 byte _controller_msb[128];
135 byte _controller_lsb[128];
137 byte _last_on_velocity;
139 byte _last_off_velocity;
140 pitchbend_t _pitch_bend;
146 void reset (timestamp_t timestamp, nframes_t nframes, bool notes_off = true);
148 void process_note_off (Parser &, EventTwoBytes *);
149 void process_note_on (Parser &, EventTwoBytes *);
150 void process_controller (Parser &, EventTwoBytes *);
151 void process_polypress (Parser &, EventTwoBytes *);
152 void process_program_change (Parser &, byte);
153 void process_chanpress (Parser &, byte);
154 void process_pitchbend (Parser &, pitchbend_t);
155 void process_reset (Parser &);
160 #endif // __midichannel_h__