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
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
|
//=============================================================================
// MuseScore
// Music Composition & Notation
//
// Copyright (C) 2008-2011 Werner Schweer
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License version 2
// as published by the Free Software Foundation and appearing in
// the file LICENCE.GPL
//=============================================================================
#include "libmscore/xml.h"
#include "libmscore/note.h"
#include "libmscore/sig.h"
#include "libmscore/tie.h"
#include "event.h"
#include "libmscore/staff.h"
#include "libmscore/instrument.h"
#include "libmscore/part.h"
namespace Ms {
//---------------------------------------------------------
// MidiCoreEvent::write
//---------------------------------------------------------
void MidiCoreEvent::write(XmlWriter& xml) const
{
switch(_type) {
case ME_NOTEON:
xml.tagE(QString("note-on channel=\"%1\" pitch=\"%2\" velo=\"%3\"")
.arg(_channel).arg(_a).arg(_b));
break;
case ME_NOTEOFF:
xml.tagE(QString("note-off channel=\"%1\" pitch=\"%2\" velo=\"%3\"")
.arg(_channel).arg(_a).arg(_b));
break;
case ME_CONTROLLER:
if (_a == CTRL_PROGRAM) {
if (_channel == 0) {
xml.tagE(QString("program value=\"%1\"").arg(_b));
}
else {
xml.tagE(QString("program channel=\"%1\" value=\"%2\"")
.arg(channel()).arg(_b));
}
}
else {
if (channel() == 0) {
xml.tagE(QString("controller ctrl=\"%1\" value=\"%2\"")
.arg(_a).arg(_b));
}
else {
xml.tagE(QString("controller channel=\"%1\" ctrl=\"%2\" value=\"%3\"")
.arg(channel()).arg(_a).arg(_b));
}
}
break;
default:
qDebug("MidiCoreEvent::write: unknown type");
break;
}
}
//---------------------------------------------------------
// Event::Event
//---------------------------------------------------------
Event::Event()
{
_type = 0;
_ontime = -1;
_noquantOntime = 0;
_noquantDuration = 0;
_channel = 0;
_a = 0;
_b = 0;
_duration = 0;
_tpc = 0;
_voice = 0;
_edata = 0;
_len = 0;
_metaType = 0;
_note = 0;
_tuning = 0.0;
}
Event::Event(int t)
{
_type = t;
_ontime = -1;
_noquantOntime = 0;
_noquantDuration = 0;
_channel = 0;
_a = 0;
_b = 0;
_duration = 0;
_tpc = 0;
_voice = 0;
_edata = 0;
_len = 0;
_metaType = 0;
_note = 0;
_tuning = 0.0;
}
Event::Event(const Event& e)
: PlayEvent(e)
{
_type = e._type;
_ontime = e._ontime;
_noquantOntime = e._noquantOntime;
_noquantDuration = e._noquantDuration;
_channel = e._channel;
_a = e._a;
_b = e._b;
_duration = e._duration;
_tpc = e._tpc;
_voice = e._voice;
_notes = e._notes;
if (e._edata) {
_edata = new unsigned char[e._len + 1]; // don’t forget trailing zero
memcpy(_edata, e._edata, e._len+1);
}
else
_edata = 0;
_len = e._len;
_metaType = e._metaType;
_note = e._note;
_tuning = e._tuning;
}
Event::~Event()
{
delete[] _edata;
}
//---------------------------------------------------------
// NPlayEvent::NPlayEvent (beatType2metronomeEvent)
//---------------------------------------------------------
NPlayEvent::NPlayEvent(BeatType beatType)
{
setType(ME_TICK2);
setVelo(127);
switch (beatType) {
case BeatType::DOWNBEAT:
setType(ME_TICK1);
break;
case BeatType::SIMPLE_STRESSED:
case BeatType::COMPOUND_STRESSED:
// use defaults
break;
case BeatType::SIMPLE_UNSTRESSED:
case BeatType::COMPOUND_UNSTRESSED:
setVelo(80);
break;
case BeatType::COMPOUND_SUBBEAT:
setVelo(25);
break;
case BeatType::SUBBEAT:
setVelo(15);
break;
}
}
//---------------------------------------------------------
// isMuted
//---------------------------------------------------------
bool NPlayEvent::isMuted() const
{
if (!notes.empty()) {
const Note* n = notes[0];
MasterScore* cs = n->masterScore();
Staff* staff = n->staff();
Instrument* instr = staff->part()->instrument(n->tick());
const Channel* a = instr->playbackChannel(n->subchannel(), cs);
return a->mute() || a->soloMute() || !staff->playbackVoice(n->voice());
}
return false;
}
//---------------------------------------------------------
// dump
//---------------------------------------------------------
void Event::dump() const
{
printf("event ");
switch (_type) {
case ME_NOTEON: printf("noteon "); break;
case ME_CONTROLLER: printf("controller"); break;
case ME_PROGRAM: printf("program "); break;
default: printf("0x%02x ", _type); break;
}
printf(" 0x%02x 0x%02x\n", _a, _b);
}
//---------------------------------------------------------
// isChannelEvent
//---------------------------------------------------------
bool MidiCoreEvent::isChannelEvent() const
{
switch(_type) {
case ME_NOTEOFF:
case ME_NOTEON:
case ME_POLYAFTER:
case ME_CONTROLLER:
case ME_PROGRAM:
case ME_AFTERTOUCH:
case ME_PITCHBEND:
case ME_NOTE:
case ME_CHORD:
return true;
default:
return false;
}
// Prevent "unreachable code" warning.
// return false;
}
//---------------------------------------------------------
// Event::write
//---------------------------------------------------------
void Event::write(XmlWriter& xml) const
{
switch(_type) {
case ME_NOTE:
xml.tagE(QString("note tick=\"%1\" channel=\"%2\" len=\"%3\" pitch=\"%4\" velo=\"%5\"")
.arg(_ontime).arg(_channel).arg(_duration).arg(_a).arg(_b));
break;
case ME_NOTEON:
xml.tagE(QString("note-on tick=\"%1\" channel=\"%2\" pitch=\"%3\" velo=\"%4\"")
.arg(_ontime).arg(_channel).arg(_a).arg(_b));
break;
case ME_NOTEOFF:
xml.tagE(QString("note-off tick=\"%1\" channel=\"%2\" pitch=\"%3\" velo=\"%4\"")
.arg(_ontime).arg(_channel).arg(_a).arg(_b));
break;
case ME_CONTROLLER:
if (_a == CTRL_PROGRAM) {
if ((_ontime == -1) && (_channel == 0)) {
xml.tagE(QString("program value=\"%1\"").arg(_b));
}
else {
xml.tagE(QString("program tick=\"%1\" channel=\"%2\" value=\"%3\"")
.arg(ontime()).arg(channel()).arg(_b));
}
}
else {
if ((ontime() == -1) && (channel() == 0)) {
xml.tagE(QString("controller ctrl=\"%1\" value=\"%2\"")
.arg(_a).arg(_b));
}
else {
xml.tagE(QString("controller tick=\"%1\" channel=\"%2\" ctrl=\"%3\" value=\"%4\"")
.arg(ontime()).arg(channel()).arg(_a).arg(_b));
}
}
break;
case ME_SYSEX:
xml.stag(QString("sysex tick=\"%1\" len=\"%2\"").arg(ontime()).arg(_len));
xml.dump(_len, _edata);
xml.etag();
break;
case ME_META:
switch(metaType()) {
case META_TRACK_NAME:
xml.tag(QString("TrackName tick=\"%1\"").arg(ontime()), QString((char*)(edata())));
break;
case META_LYRIC:
xml.tag(QString("Lyric tick=\"%1\"").arg(ontime()), QString((char*)(edata())));
break;
case META_KEY_SIGNATURE:
{
const char* keyTable[] = {
"Ces", "Ges", "Des", "As", "Es", "Bes", "F",
"C",
"G", "D", "A", "E", "B", "Fis", "Cis"
};
int key = (char)(_edata[0]) + 7;
if (key < 0 || key > 14) {
qDebug("bad key signature %d", key);
key = 0;
}
QString sex(_edata[1] ? "Minor" : "Major");
QString keyName(keyTable[key]);
xml.tag(QString("Key tick=\"%1\" key=\"%2\" sex=\"%3\"").arg(ontime()).arg(_edata[0]).arg(_edata[1]),
QString("%1 %2").arg(keyName).arg(sex));
}
break;
case META_TIME_SIGNATURE:
xml.tagE(QString("TimeSig tick=\"%1\" num=\"%2\" denom=\"%3\" metro=\"%4\" quarter=\"%5\"")
.arg(ontime())
.arg(int(_edata[0]))
.arg(int(_edata[1]))
.arg(int(_edata[2]))
.arg(int(_edata[3])));
break;
case META_TEMPO:
{
unsigned tempo = _edata[2] + (_edata[1] << 8) + (_edata[0] << 16);
xml.tagE(QString("Tempo tick=\"%1\" value=\"%2\"").arg(ontime()).arg(tempo));
}
break;
default:
xml.stag(QString("Meta tick=\"%1\" type=\"%2\" len=\"%3\" name=\"%4\"")
.arg(ontime()).arg(metaType()).arg(_len).arg(midiMetaName(metaType())));
xml.dump(_len, _edata);
xml.etag();
break;
}
break;
}
}
bool Event::operator==(const Event&) const
{
return false; // TODO
}
//---------------------------------------------------------
// midi_meta_name
//---------------------------------------------------------
QString midiMetaName(int meta)
{
const char* s = "";
switch (meta) {
case 0: s = "Sequence Number"; break;
case 1: s = "Text Event"; break;
case 2: s = "Copyright"; break;
case 3: s = "Sequence/Track Name"; break;
case 4: s = "Instrument Name"; break;
case 5: s = "Lyric"; break;
case 6: s = "Marker"; break;
case 7: s = "Cue Point"; break;
case 8:
case 9:
case 0x0a:
case 0x0b:
case 0x0c:
case 0x0d:
case 0x0e:
case 0x0f: s = "Text"; break;
case 0x20: s = "Channel Prefix"; break;
case 0x21: s = "Port Change"; break;
case 0x2f: s = "End of Track"; break;
case META_TEMPO: s = "Tempo"; break;
case 0x54: s = "SMPTE Offset"; break;
case META_TIME_SIGNATURE: s = "Time Signature"; break;
case META_KEY_SIGNATURE: s = "Key Signature"; break;
case 0x74: s = "Sequencer-Specific1"; break;
case 0x7f: s = "Sequencer-Specific2"; break;
default:
break;
}
return QString(s);
}
//---------------------------------------------------------
// insert
//---------------------------------------------------------
void EventList::insert(const Event& e)
{
int ontime = e.ontime();
if (!isEmpty() && last().ontime() > ontime) {
for (auto i = begin(); i != end(); ++i) {
if (i->ontime() > ontime) {
QList<Event>::insert(i, e);
return;
}
}
}
append(e);
}
//---------------------------------------------------------
// class EventMap::fixupMIDI
//---------------------------------------------------------
static void logCollisionNote(const Note* note, unsigned int indent)
{
QString info = note->accessibleInfo() + note->accessibleBarbeat();
fprintf(stderr, " %*s%s\n", indent, "- ", qPrintable(info));
}
static void logCollisionNotes(const NPlayEvent* event)
{
for (auto it = event->notes.cbegin(); it != event->notes.cend(); ++it) {
const Note* note1 = *it;
unsigned int indent = /* initial */ 2;
while (note1) {
logCollisionNote(note1, indent);
indent += /* linked */ 4;
for (ScoreElement* se : note1->linkList()) {
if (se != note1 && se->isNote())
logCollisionNote(toNote(se), indent);
}
indent -= /* linked */ 4 - /* next level */ 2;
note1 = note1->tieFor() ? note1->tieFor()->endNote() : 0;
}
}
}
void EventMap::fixupMIDI()
{
/* track info for each of the 128 possible MIDI notes */
struct channelInfo {
/* which event the first ME_NOTEON came from */
NPlayEvent *event[128];
/* how often is the note on right now? */
unsigned short nowPlaying[128];
};
/* track info for each channel (on the heap, 0-initialised) */
struct channelInfo *info = (struct channelInfo *)calloc(_highestChannel + 1, sizeof(struct channelInfo));
auto it = begin();
while (it != end()) {
bool discard = false;
NPlayEvent& event = it->second;
/* ME_NOTEOFF is never emitted, no need to check for it */
if (event.type() == ME_NOTEON && !event.isMuted()) {
unsigned short np = info[event.channel()].nowPlaying[event.pitch()];
if (event.velo() == 0) {
/* already off (should not happen) or still playing? */
if (np == 0 || --np > 0)
discard = true;
else {
/* hoist NOTEOFF to same track as NOTEON */
event.setOriginatingStaff(info[event.channel()].event[event.pitch()]->getOriginatingStaff());
/* copy linked Notes */
event.notes = info[event.channel()].event[event.pitch()]->notes;
}
}
else if (++np > 1) {
/* already playing */
discard = true;
/* log the collision */
fprintf(stderr, "MIDI collision detected: newly played...\n");
logCollisionNotes(&event);
fprintf(stderr, " ... interferes with already playing...\n");
logCollisionNotes(info[event.channel()].event[event.pitch()]);
fprintf(stderr, " ... which will continue to sound.\n");
/* carry over the corresponding score notes */
info[event.channel()].event[event.pitch()]->notes.insert(info[event.channel()].event[event.pitch()]->notes.end(), event.notes.begin(), event.notes.end());
}
else {
info[event.channel()].event[event.pitch()] = &event;
}
info[event.channel()].nowPlaying[event.pitch()] = np;
}
if (discard)
it = erase(it);
else
++it;
}
free((void *)info);
}
}
|
