1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
|
/*
Copyright (C) 2006-2008 Paul Davis
Author: Torben Hohn
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 (at your option)
any later version.
This program is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
You should have received a copy of the GNU General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <iostream>
#include "ardour/event_type_map.h"
#include "ardour/midi_state_tracker.h"
using namespace std;
using namespace ARDOUR;
MidiStateTracker::MidiStateTracker ()
{
reset ();
}
void
MidiStateTracker::reset ()
{
memset (_active_notes, 0, sizeof (_active_notes));
}
void
MidiStateTracker::track_note_onoffs (const Evoral::MIDIEvent<MidiBuffer::TimeType>& event)
{
if (event.is_note_on()) {
_active_notes [event.note() + 128 * event.channel()]++;
} else if (event.is_note_off()){
if (_active_notes[event.note() + 128 * event.channel()]) {
_active_notes [event.note() + 128 * event.channel()]--;
}
}
}
void
MidiStateTracker::track (const MidiBuffer::iterator &from, const MidiBuffer::iterator &to, bool& looped)
{
looped = false;
for (MidiBuffer::iterator i = from; i != to; ++i) {
const Evoral::MIDIEvent<MidiBuffer::TimeType> ev(*i, false);
if (ev.event_type() == LoopEventType) {
looped = true;
continue;
}
track_note_onoffs (ev);
}
}
void
MidiStateTracker::resolve_notes (MidiBuffer &dst, nframes_t time)
{
for (int channel = 0; channel < 16; ++channel) {
for (int note = 0; note < 128; ++note) {
while (_active_notes[channel * 128 + note]) {
uint8_t buffer[3] = { MIDI_CMD_NOTE_OFF | channel, note, 0 };
Evoral::MIDIEvent<MidiBuffer::TimeType> noteoff
(time, MIDI_CMD_NOTE_OFF, 3, buffer, false);
dst.push_back (noteoff);
_active_notes[channel * 128 + note]--;
}
}
}
}
void
MidiStateTracker::dump (ostream& o)
{
o << "******\n";
for (int c = 0; c < 16; ++c) {
for (int x = 0; x < 128; ++x) {
if (_active_notes[c * 128 + x]) {
o << "Channel " << c+1 << " Note " << x << " is on ("
<< (int) _active_notes[c*128+x] << "times)\n";
}
}
}
o << "+++++\n";
}
|
