2 Copyright (C) 1998 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 __midi_parse_h__
21 #define __midi_parse_h__
26 #include "pbd/signals.h"
28 #include "midi++/libmidi_visibility.h"
29 #include "midi++/types.h"
36 typedef PBD::Signal1<void,Parser&> ZeroByteSignal;
37 typedef PBD::Signal2<void,Parser&,framecnt_t> TimestampedSignal;
38 typedef PBD::Signal2<void,Parser&, byte> OneByteSignal;
39 typedef PBD::Signal2<void,Parser &, EventTwoBytes *> TwoByteSignal;
40 typedef PBD::Signal2<void,Parser &, pitchbend_t> PitchBendSignal;
41 typedef PBD::Signal3<void,Parser &, byte *, size_t> Signal;
43 class LIBMIDIPP_API Parser {
48 /* sets the time that will be reported for any MTC or MIDI Clock
49 message the next time ::scanner() parses such a message. It should
50 therefore be set before every byte passed into ::scanner().
53 framecnt_t get_timestamp() const { return _timestamp; }
54 void set_timestamp (const framecnt_t timestamp) { _timestamp = timestamp; }
56 /* signals that anyone can connect to */
58 OneByteSignal bank_change;
59 TwoByteSignal note_on;
60 TwoByteSignal note_off;
61 TwoByteSignal poly_pressure;
62 OneByteSignal pressure;
63 OneByteSignal program_change;
64 PitchBendSignal pitchbend;
65 TwoByteSignal controller;
67 OneByteSignal channel_bank_change[16];
68 TwoByteSignal channel_note_on[16];
69 TwoByteSignal channel_note_off[16];
70 TwoByteSignal channel_poly_pressure[16];
71 OneByteSignal channel_pressure[16];
72 OneByteSignal channel_program_change[16];
73 PitchBendSignal channel_pitchbend[16];
74 TwoByteSignal channel_controller[16];
75 ZeroByteSignal channel_active_preparse[16];
76 ZeroByteSignal channel_active_postparse[16];
78 OneByteSignal mtc_quarter_frame; /* see below for more useful signals */
88 ZeroByteSignal all_notes_off;
90 ZeroByteSignal active_sense;
94 TimestampedSignal timing;
95 TimestampedSignal start;
96 TimestampedSignal stop;
97 TimestampedSignal contineu; /* note spelling */
99 /* This should really be protected, but then derivatives of Port
103 void scanner (byte c);
105 size_t *message_counts() { return message_counter; }
106 const char *midi_event_type_name (MIDI::eventType);
107 void trace (bool onoff, std::ostream *o, const std::string &prefix = "");
108 bool tracing() { return trace_stream != 0; }
110 void set_offline (bool);
111 bool offline() const { return _offline; }
112 PBD::Signal0<void> OfflineStatusChanged;
114 PBD::Signal2<int,byte *, size_t> edit;
116 void set_mmc_forwarding (bool yn) {
122 MTC_FPS mtc_fps() const { return _mtc_fps; }
123 MTC_Status mtc_running() const { return _mtc_running; }
124 const byte *mtc_current() const { return _mtc_time; }
125 bool mtc_locked() const { return _mtc_locked; }
127 PBD::Signal3<void, Parser &, int, framecnt_t> mtc_qtr;
128 PBD::Signal3<void, const byte *, bool, framecnt_t> mtc_time;
129 PBD::Signal1<void, MTC_Status> mtc_status;
130 PBD::Signal0<bool> mtc_skipped;
132 void set_mtc_forwarding (bool yn) {
136 void reset_mtc_state ();
141 std::ostream *trace_stream;
142 std::string trace_prefix;
143 void trace_event (Parser &p, byte *msg, size_t len);
144 PBD::ScopedConnection trace_connection;
146 size_t message_counter[256];
155 unsigned char *msgbuf;
158 MIDI::eventType msgtype;
165 int expected_mtc_quarter_frame_code;
167 byte _qtr_mtc_time[5];
168 unsigned long consecutive_qtr_frame_cnt;
170 MTC_Status _mtc_running;
174 framecnt_t _timestamp;
176 ParseState pre_variable_state;
177 MIDI::eventType pre_variable_msgtype;
178 byte last_status_byte;
180 void channel_msg (byte);
181 void realtime_msg (byte);
182 void system_msg (byte);
183 void signal (byte *msg, size_t msglen);
184 bool possible_mmc (byte *msg, size_t msglen);
185 bool possible_mtc (byte *msg, size_t msglen);
186 void process_mtc_quarter_frame (byte *msg);
191 #endif // __midi_parse_h__