/*
Copyright (C) 1998 Paul Barton-Davis
- This file was inspired by the MIDI parser for KeyKit by
- Tim Thompson.
-
+ This file was inspired by the MIDI parser for KeyKit by
+ Tim Thompson.
+
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
case MIDI::any:
return "any midi message";
-
+
case off:
return "note off";
-
+
case on:
return "note on";
-
+
case polypress:
return "aftertouch";
-
+
case MIDI::controller:
return "controller";
-
+
case program:
return "program change";
-
+
case chanpress:
return "channel pressure";
-
+
case MIDI::pitchbend:
return "pitch bend";
-
+
case MIDI::sysex:
return "system exclusive";
-
+
case MIDI::song:
return "song position";
-
+
case MIDI::tune:
return "tune";
-
+
case MIDI::eox:
return "end of sysex";
-
+
case MIDI::timing:
return "timing";
-
+
case MIDI::start:
return "start";
-
+
case MIDI::stop:
return "continue";
-
+
case MIDI::contineu:
return "stop";
-
+
case active:
return "active sense";
-
+
default:
return "unknow MIDI event type";
}
}
-Parser::Parser (Port &p)
- : _port(p)
+Parser::Parser ()
{
trace_stream = 0;
trace_prefix = "";
Parser::~Parser ()
{
- delete msgbuf;
+ free (msgbuf);
}
void
if ((o = trace_stream) == NULL) { /* can be asynchronously removed */
return;
}
-
+
type = (eventType) (msg[0]&0xF0);
switch (type) {
<< (int) msg[2]
<< endmsg;
break;
-
+
case on:
*o << trace_prefix
<< "Channel "
<< (int) msg[2]
<< endmsg;
break;
-
+
case polypress:
*o << trace_prefix
<< "Channel "
<< (msg[0]&0xF)+1
- << " PolyPressure"
+ << " PolyPressure "
<< (int) msg[1]
<< endmsg;
break;
-
+
case MIDI::controller:
*o << trace_prefix
<< "Channel "
<< (int) msg[2]
<< endmsg;
break;
-
+
case program:
- *o << trace_prefix
+ *o << trace_prefix
<< "Channel "
<< (msg[0]&0xF)+1
<< " Program Change ProgNum "
<< (int) msg[1]
<< endmsg;
break;
-
+
case chanpress:
- *o << trace_prefix
+ *o << trace_prefix
<< "Channel "
<< (msg[0]&0xF)+1
<< " Channel Pressure "
<< (int) msg[1]
<< endmsg;
break;
-
+
case MIDI::pitchbend:
*o << trace_prefix
<< "Channel "
<< ((msg[2]<<7)|msg[1])
<< endmsg;
break;
-
+
case MIDI::sysex:
if (len == 1) {
switch (msg[0]) {
default:
*o << trace_prefix
<< "System Exclusive (1 byte : " << hex << (int) *msg << dec << ')'
- << endmsg;
+ << endmsg;
break;
- }
+ }
} else {
*o << trace_prefix
<< "System Exclusive (" << len << ") = [ " << hex;
*o << (int) msgbuf[i] << ' ';
}
*o << dec << ']' << endmsg;
-
+
}
break;
-
+
case MIDI::song:
*o << trace_prefix << "Song" << endmsg;
break;
-
+
case MIDI::tune:
*o << trace_prefix << "Tune" << endmsg;
break;
-
+
case MIDI::eox:
*o << trace_prefix << "End-of-System Exclusive" << endmsg;
break;
-
+
case MIDI::timing:
*o << trace_prefix << "Timing" << endmsg;
break;
-
+
case MIDI::start:
*o << trace_prefix << "Start" << endmsg;
break;
-
+
case MIDI::stop:
*o << trace_prefix << "Stop" << endmsg;
break;
-
+
case MIDI::contineu:
*o << trace_prefix << "Continue" << endmsg;
break;
-
+
case active:
*o << trace_prefix << "Active Sense" << endmsg;
break;
-
+
default:
*o << trace_prefix << "Unrecognized MIDI message" << endmsg;
break;
boost::optional<int> edit_result;
// cerr << "parse: " << hex << (int) inbyte << dec << " state = " << state << " msgindex = " << msgindex << " runnable = " << runnable << endl;
-
- /* Check active sensing early, so it doesn't interrupt sysex.
-
+
+ /* Check active sensing early, so it doesn't interrupt sysex.
+
NOTE: active sense messages are not considered to fit under
"any" for the purposes of callbacks. If a caller wants
active sense messages handled, which is unlikely, then
every other MIDI message in terms of semantics that its
counter-productive to treat them similarly.
*/
-
+
if (inbyte == 0xfe) {
message_counter[inbyte]++;
if (!_offline) {
}
return;
}
-
+
/* If necessary, allocate larger message buffer. */
-
+
if (msgindex >= msglen) {
msglen *= 2;
msgbuf = (unsigned char *) realloc (msgbuf, msglen);
}
-
+
/*
Real time messages can occur ANYPLACE,
- but do not interrupt running status.
+ but do not interrupt running status.
*/
bool rtmsg = false;
-
+
switch (inbyte) {
case 0xf8:
rtmsg = true;
if (rtmsg) {
boost::optional<int> res = edit (&inbyte, 1);
-
+
if (res.get_value_or (1) >= 0 && !_offline) {
realtime_msg (inbyte);
- }
-
+ }
+
return;
- }
+ }
statusbit = (inbyte & 0x80);
}
if (!_offline) {
any (*this, msgbuf, msgindex);
- }
+ }
}
}
}
-
+
/*
* Status bytes always start a new message, except EOX
*/
-
+
if (statusbit) {
msgindex = 0;
return;
}
-
+
/*
* We've got a Data byte.
*/
-
+
msgbuf[msgindex++] = inbyte;
switch (state) {
* messages, so just handle it silently.
*/
break;
-
+
case NEEDTWOBYTES:
/* wait for the second byte */
if (msgindex < 3)
return;
/*FALLTHRU*/
-
+
case NEEDONEBYTE:
/* We've completed a 1 or 2 byte message. */
edit_result = edit (msgbuf, msgindex);
-
+
if (edit_result.get_value_or (1)) {
-
+
/* message not cancelled by an editor */
-
+
message_counter[msgbuf[0] & 0xF0]++;
if (!_offline) {
signal (msgbuf, msgindex);
}
}
-
+
if (runnable) {
- /* In Runnable mode, we reset the message
- index, but keep the callbacks_pending and state the
- same. This provides the "running status
+ /* In Runnable mode, we reset the message
+ index, but keep the callbacks_pending and state the
+ same. This provides the "running status
byte" feature.
*/
msgindex = 1;
state = NEEDSTATUS;
}
break;
-
+
case VARIABLELENGTH:
/* nothing to do */
break;
break;
case 0xfe:
/* !!! active sense message in realtime_msg: should not reach here
- */
+ */
break;
case 0xff:
reset (*this);
{
last_status_byte = inbyte;
runnable = true; /* Channel messages can use running status */
-
+
/* The high 4 bits, which determine the type of channel message. */
-
+
switch (inbyte&0xF0) {
case 0x80:
msgtype = off;
break;
}
- // all these messages will be sent via any()
+ // all these messages will be sent via any()
// when they are complete.
// any (*this, &inbyte, 1);
}
-void
+void
Parser::signal (MIDI::byte *msg, size_t len)
{
channel_t chan = msg[0]&0xF;
switch (msgtype) {
case none:
break;
-
+
case off:
channel_active_preparse[chan_i] (*this);
note_off (*this, (EventTwoBytes *) &msg[1]);
- channel_note_off[chan_i]
+ channel_note_off[chan_i]
(*this, (EventTwoBytes *) &msg[1]);
channel_active_postparse[chan_i] (*this);
break;
-
+
case on:
channel_active_preparse[chan_i] (*this);
if (msg[2] == 0) {
note_off (*this, (EventTwoBytes *) &msg[1]);
- channel_note_off[chan_i]
+ channel_note_off[chan_i]
(*this, (EventTwoBytes *) &msg[1]);
} else {
note_on (*this, (EventTwoBytes *) &msg[1]);
- channel_note_on[chan_i]
+ channel_note_on[chan_i]
(*this, (EventTwoBytes *) &msg[1]);
}
channel_active_postparse[chan_i] (*this);
break;
-
+
case MIDI::controller:
channel_active_preparse[chan_i] (*this);
controller (*this, (EventTwoBytes *) &msg[1]);
- channel_controller[chan_i]
+ channel_controller[chan_i]
(*this, (EventTwoBytes *) &msg[1]);
channel_active_postparse[chan_i] (*this);
break;
-
+
case program:
channel_active_preparse[chan_i] (*this);
program_change (*this, msg[1]);
channel_program_change[chan_i] (*this, msg[1]);
channel_active_postparse[chan_i] (*this);
break;
-
+
case chanpress:
channel_active_preparse[chan_i] (*this);
pressure (*this, msg[1]);
channel_pressure[chan_i] (*this, msg[1]);
channel_active_postparse[chan_i] (*this);
break;
-
+
case polypress:
channel_active_preparse[chan_i] (*this);
poly_pressure (*this, (EventTwoBytes *) &msg[1]);
- channel_poly_pressure[chan_i]
+ channel_poly_pressure[chan_i]
(*this, (EventTwoBytes *) &msg[1]);
channel_active_postparse[chan_i] (*this);
break;
-
+
case MIDI::pitchbend:
channel_active_preparse[chan_i] (*this);
pitchbend (*this, (msg[2]<<7)|msg[1]);
channel_pitchbend[chan_i] (*this, (msg[2]<<7)|msg[1]);
channel_active_postparse[chan_i] (*this);
break;
-
+
case MIDI::sysex:
sysex (*this, msg, len);
break;
process_mtc_quarter_frame (msg);
mtc_quarter_frame (*this, *msg);
break;
-
+
case MIDI::position:
position (*this, msg, len);
break;
-
+
case MIDI::song:
song (*this, msg, len);
break;
-
+
case MIDI::tune:
tune (*this);
-
+
default:
/* XXX some kind of warning ? */
break;
}
-
+
any (*this, msg, len);
}
/* this hack deals with the possibility of our first MIDI
bytes being running status messages.
*/
-
+
channel_msg (0x90);
state = NEEDSTATUS;
}
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