-
-
Notifications
You must be signed in to change notification settings - Fork 1k
/
Copy pathCarla.cpp
1138 lines (945 loc) · 34.1 KB
/
Carla.cpp
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
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
/*
* carla.cpp - Carla for LMMS
*
* Copyright (C) 2014-2018 Filipe Coelho <[email protected]>
*
* This file is part of LMMS - https://lmms.io
*
* 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 (see COPYING); if not, write to the
* Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301 USA.
*
*/
#include "Carla.h"
#include "AudioEngine.h"
#include "Engine.h"
#include "GuiApplication.h"
#include "InstrumentPlayHandle.h"
#include "InstrumentTrack.h"
#include "Knob.h"
#include "MidiEventToByteSeq.h"
#include "MainWindow.h"
#include "FontHelper.h"
#include "Song.h"
#include <QApplication>
#include <QComboBox>
#include <QCompleter>
#include <QFileDialog>
#include <QHBoxLayout>
#include <QLabel>
#include <QLineEdit>
#include <QMdiArea>
#include <QPushButton>
#include <QScrollArea>
#include <QSizePolicy>
#include <QSpacerItem>
#include <QSplitter>
#include <QString>
#include <QStringList>
#include <QStringListModel>
#include <QTimerEvent>
#include <QVBoxLayout>
#include <cstring>
#include "embed.h"
namespace lmms
{
// this doesn't seem to be defined anywhere
static const double ticksPerBeat = 48.0;
/*
* Current TODO items:
* - get plugin instance name (to use in external window title)
* - offline mode change callback
* - midi output
*
* All other items are to be done in Carla itself.
*/
// -----------------------------------------------------------------------
#define handlePtr ((CarlaInstrument*)handle)
static uint32_t host_get_buffer_size(NativeHostHandle handle)
{
return handlePtr->handleGetBufferSize();
}
static double host_get_sample_rate(NativeHostHandle handle)
{
return handlePtr->handleGetSampleRate();
}
static bool host_is_offline(NativeHostHandle handle)
{
return handlePtr->handleIsOffline();
}
static const NativeTimeInfo* host_get_time_info(NativeHostHandle handle)
{
return handlePtr->handleGetTimeInfo();
}
static bool host_write_midi_event(NativeHostHandle, const NativeMidiEvent*)
{
return false; // unsupported?
}
static void host_ui_parameter_changed(NativeHostHandle handle, uint32_t index, float value)
{
handlePtr->handleUiParameterChanged(index, value);
}
static void host_ui_custom_data_changed(NativeHostHandle handle, const char* key, const char* value)
{
// unused
}
static void host_ui_closed(NativeHostHandle handle)
{
handlePtr->handleUiClosed();
}
static intptr_t host_dispatcher(NativeHostHandle handle, NativeHostDispatcherOpcode opcode, int32_t index, intptr_t value, void* ptr, float opt)
{
return handlePtr->handleDispatcher(opcode, index, value, ptr, opt);
}
#undef handlePtr
// -----------------------------------------------------------------------
static const char* host_ui_open_file(NativeHostHandle, bool isDir, const char* title, const char* filter)
{
static QByteArray retStr;
const QFileDialog::Options options(isDir ? QFileDialog::ShowDirsOnly : 0x0);
retStr = QFileDialog::getOpenFileName(QApplication::activeWindow(), title, "", filter, nullptr, options).toUtf8();
return retStr.isEmpty() ? nullptr : retStr.constData();
}
static const char* host_ui_save_file(NativeHostHandle, bool isDir, const char* title, const char* filter)
{
static QByteArray retStr;
const QFileDialog::Options options(isDir ? QFileDialog::ShowDirsOnly : 0x0);
retStr = QFileDialog::getSaveFileName(QApplication::activeWindow(), title, "", filter, nullptr, options).toUtf8();
return retStr.isEmpty() ? nullptr : retStr.constData();
}
// -----------------------------------------------------------------------
CarlaInstrument::CarlaInstrument(InstrumentTrack* const instrumentTrack, const Descriptor* const descriptor, const bool isPatchbay)
: Instrument(instrumentTrack, descriptor, nullptr, Flag::IsSingleStreamed | Flag::IsMidiBased | Flag::IsNotBendable),
kIsPatchbay(isPatchbay),
fHandle(nullptr),
fDescriptor(isPatchbay ? carla_get_native_patchbay_plugin() : carla_get_native_rack_plugin()),
fMidiEventCount(0),
m_paramModels()
{
fHost.handle = this;
fHost.uiName = nullptr;
fHost.uiParentId = 0;
// carla/resources contains PyQt scripts required for launch
QDir path(carla_get_library_folder());
#if defined(CARLA_OS_LINUX)
path.cdUp();
path.cdUp();
QString resourcesPath = path.absolutePath() + "/share/carla/resources";
#else
// parse prefix from dll filename
QString resourcesPath = path.absolutePath() + "/resources";
#endif
fHost.resourceDir = strdup(resourcesPath.toUtf8().constData());
fHost.get_buffer_size = host_get_buffer_size;
fHost.get_sample_rate = host_get_sample_rate;
fHost.is_offline = host_is_offline;
fHost.get_time_info = host_get_time_info;
fHost.write_midi_event = host_write_midi_event;
fHost.ui_parameter_changed = host_ui_parameter_changed;
fHost.ui_custom_data_changed = host_ui_custom_data_changed;
fHost.ui_closed = host_ui_closed;
fHost.ui_open_file = host_ui_open_file;
fHost.ui_save_file = host_ui_save_file;
fHost.dispatcher = host_dispatcher;
std::memset(&fTimeInfo, 0, sizeof(NativeTimeInfo));
fTimeInfo.bbt.valid = true; // always valid
fHandle = fDescriptor->instantiate(&fHost);
Q_ASSERT(fHandle != nullptr);
if (fHandle != nullptr && fDescriptor->activate != nullptr)
fDescriptor->activate(fHandle);
// we need a play-handle which cares for calling play()
auto iph = new InstrumentPlayHandle(this, instrumentTrack);
Engine::audioEngine()->addPlayHandle( iph );
#if CARLA_VERSION_HEX >= CARLA_MIN_PARAM_VERSION
// text filter completion
m_completerModel = new QStringListModel(this);
m_paramsCompleter = new QCompleter(m_completerModel, this);
m_paramsCompleter->setCaseSensitivity(Qt::CaseInsensitive);
m_paramsCompleter->setCompletionMode(QCompleter::PopupCompletion);
// Add static amount of CarlaParamFloatModel's.
const auto paramCount = fDescriptor->get_parameter_count(fHandle);
m_paramModels.reserve(paramCount);
for (auto i = std::size_t{0}; i < paramCount; ++i)
{
m_paramModels.push_back(new CarlaParamFloatModel(this));
connect(m_paramModels[i], &CarlaParamFloatModel::dataChanged,
this, [this, i]() {paramModelChanged(i);}, Qt::DirectConnection);
}
#endif
connect(Engine::audioEngine(), SIGNAL(sampleRateChanged()), this, SLOT(sampleRateChanged()));
}
CarlaInstrument::~CarlaInstrument()
{
Engine::audioEngine()->removePlayHandlesOfTypes(instrumentTrack(), PlayHandle::Type::NotePlayHandle | PlayHandle::Type::InstrumentPlayHandle);
if (fHost.resourceDir != nullptr)
{
std::free((char*)fHost.resourceDir);
fHost.resourceDir = nullptr;
}
if (fHost.uiName != nullptr)
{
std::free((char*)fHost.uiName);
fHost.uiName = nullptr;
}
if (fHandle == nullptr)
return;
if (fDescriptor->deactivate != nullptr)
fDescriptor->deactivate(fHandle);
if (fDescriptor->cleanup != nullptr)
fDescriptor->cleanup(fHandle);
fHandle = nullptr;
#if CARLA_VERSION_HEX >= CARLA_MIN_PARAM_VERSION
clearParamModels();
#endif
}
// -------------------------------------------------------------------
uint32_t CarlaInstrument::handleGetBufferSize() const
{
return Engine::audioEngine()->framesPerPeriod();
}
double CarlaInstrument::handleGetSampleRate() const
{
return Engine::audioEngine()->outputSampleRate();
}
bool CarlaInstrument::handleIsOffline() const
{
return false; // TODO
}
const NativeTimeInfo* CarlaInstrument::handleGetTimeInfo() const
{
return &fTimeInfo;
}
void CarlaInstrument::handleUiParameterChanged(const uint32_t index, const float value) const
{
if (m_paramModels.size() > index)
{
m_paramModels[index]->setValue(value);
}
}
void CarlaInstrument::handleUiClosed()
{
emit uiClosed();
}
intptr_t CarlaInstrument::handleDispatcher(const NativeHostDispatcherOpcode opcode, const int32_t index,
const intptr_t value, void* const ptr, const float opt)
{
intptr_t ret = 0;
// source/includes/CarlaNative.h
// NATIVE_HOST_OPCODE_NULL = 0, nothing
// NATIVE_HOST_OPCODE_UPDATE_PARAMETER = 1, uses index, -1 for all
// NATIVE_HOST_OPCODE_UPDATE_MIDI_PROGRAM = 2, uses index, -1 for all; may use value for channel
// NATIVE_HOST_OPCODE_RELOAD_PARAMETERS = 3, nothing
// NATIVE_HOST_OPCODE_RELOAD_MIDI_PROGRAMS = 4, nothing
// NATIVE_HOST_OPCODE_RELOAD_ALL = 5, nothing
// NATIVE_HOST_OPCODE_UI_UNAVAILABLE = 6, nothing
// NATIVE_HOST_OPCODE_HOST_IDLE = 7, nothing
// NATIVE_HOST_OPCODE_INTERNAL_PLUGIN = 8, nothing
// NATIVE_HOST_OPCODE_QUEUE_INLINE_DISPLAY = 9, nothing
// NATIVE_HOST_OPCODE_UI_TOUCH_PARAMETER = 10 uses index, value as bool
switch (opcode)
{
case NATIVE_HOST_OPCODE_UI_UNAVAILABLE:
handleUiClosed();
break;
case NATIVE_HOST_OPCODE_HOST_IDLE:
qApp->processEvents();
break;
#if CARLA_VERSION_HEX >= CARLA_MIN_PARAM_VERSION
case NATIVE_HOST_OPCODE_UI_TOUCH_PARAMETER:
// param index, value as bool
// true = mousePress
// false = mouseRelease
if (!value) {
updateParamModel(index);
}
break;
case NATIVE_HOST_OPCODE_RELOAD_ALL:
refreshParams();
break;
case NATIVE_HOST_OPCODE_UPDATE_PARAMETER:
break;
case NATIVE_HOST_OPCODE_RELOAD_PARAMETERS:
refreshParams();
break;
case NATIVE_HOST_OPCODE_UPDATE_MIDI_PROGRAM:
case NATIVE_HOST_OPCODE_RELOAD_MIDI_PROGRAMS:
case NATIVE_HOST_OPCODE_INTERNAL_PLUGIN:
case NATIVE_HOST_OPCODE_QUEUE_INLINE_DISPLAY:
break;
#endif
default:
break;
}
return ret;
}
// -------------------------------------------------------------------
QString CarlaInstrument::nodeName() const
{
return descriptor()->name;
}
void CarlaInstrument::saveSettings(QDomDocument& doc, QDomElement& parent)
{
if (fHandle == nullptr || fDescriptor->get_state == nullptr)
return;
char* const state = fDescriptor->get_state(fHandle);
if (state == nullptr)
return;
QDomDocument carlaDoc("carla");
if (carlaDoc.setContent(QString(state)))
{
QDomNode n = doc.importNode(carlaDoc.documentElement(), true);
parent.appendChild(n);
}
std::free(state);
#if CARLA_VERSION_HEX >= CARLA_MIN_PARAM_VERSION
for (uint32_t index = 0; index < m_paramModels.size(); ++index)
{
QString idStr = CARLA_SETTING_PREFIX + QString::number(index);
m_paramModels[index]->saveSettings(doc, parent, idStr);
}
#endif
}
void CarlaInstrument::refreshParams(bool init)
{
m_paramGroupCount = 0;
if (fDescriptor->get_parameter_count != nullptr &&
fDescriptor->get_parameter_info != nullptr &&
fDescriptor->get_parameter_value != nullptr &&
fDescriptor->set_parameter_value != nullptr)
{
QList<QString> completerData;
QList<QString> groups; // used to count no. groups.
uint32_t paramCount = fDescriptor->get_parameter_count(fHandle);
for (uint32_t i=0; i < paramCount; ++i)
{
const NativeParameter* paramInfo(fDescriptor->get_parameter_info(fHandle, i));
m_paramModels[i]->setOutput((paramInfo->hints & NATIVE_PARAMETER_IS_OUTPUT));
m_paramModels[i]->setEnabled((paramInfo->hints & NATIVE_PARAMETER_IS_ENABLED));
m_paramModels[i]->setValue(fDescriptor->get_parameter_value(fHandle, i));
// Get parameter name
QString name = "_NO_NAME_";
if (paramInfo->name != nullptr)
{
name = paramInfo->name;
}
if (paramInfo->groupName != nullptr)
{
m_paramModels[i]->setGroupName(paramInfo->groupName);
if (m_paramModels[i]->enabled() && !groups.contains(paramInfo->groupName))
{
groups.push_back(paramInfo->groupName);
m_paramGroupCount++;
}
m_paramModels[i]->setGroupId(groups.indexOf(paramInfo->groupName));
}
completerData.push_back(name);
m_paramModels[i]->setDisplayName(name);
m_paramModels[i]->setRange(paramInfo->ranges.min,
paramInfo->ranges.max,
paramInfo->ranges.step);
// Load settings into model.
if (init)
{
QString idStr = CARLA_SETTING_PREFIX + QString::number(i);
m_paramModels[i]->loadSettings(m_settingsElem, idStr);
}
}
// Set completer data
m_completerModel->setStringList(completerData);
}
emit paramsUpdated();
}
void CarlaInstrument::clearParamModels()
{
//Delete the models, this also disconnects all connections (automation and controller connections)
for (uint32_t index = 0; index < m_paramModels.size(); ++index)
{
delete m_paramModels[index];
}
//Clear the list
m_paramModels.clear();
m_paramGroupCount = 0;
}
void CarlaInstrument::paramModelChanged(uint32_t index)
{ // Update Carla param (LMMS -> Carla)
if (!m_paramModels[index]->isOutput())
{
if (fDescriptor->set_parameter_value != nullptr)
{
fDescriptor->set_parameter_value(fHandle, index, m_paramModels[index]->value());
}
// TODO? Shouldn't Carla be doing this?
if (fDescriptor->ui_set_parameter_value != nullptr)
{
fDescriptor->ui_set_parameter_value(fHandle, index, m_paramModels[index]->value());
}
}
}
void CarlaInstrument::updateParamModel(uint32_t index)
{ // Called on param changed (Carla -> LMMS)
if (fDescriptor->get_parameter_value != nullptr)
{
m_paramModels[index]->setValue(
fDescriptor->get_parameter_value(fHandle, index)
);
}
}
void CarlaInstrument::loadSettings(const QDomElement& elem)
{
if (fHandle == nullptr || fDescriptor->set_state == nullptr)
return;
QDomDocument carlaDoc("carla");
carlaDoc.appendChild(carlaDoc.importNode(elem.firstChildElement(), true ));
fDescriptor->set_state(fHandle, carlaDoc.toString(0).toUtf8().constData());
#if CARLA_VERSION_HEX >= CARLA_MIN_PARAM_VERSION
// Store to load parameter knobs settings when added.
m_settingsElem = const_cast<QDomElement&>(elem);
refreshParams(true);
#endif
}
void CarlaInstrument::play(SampleFrame* workingBuffer)
{
const uint bufsize = Engine::audioEngine()->framesPerPeriod();
zeroSampleFrames(workingBuffer, bufsize);
if (fHandle == nullptr)
{
return;
}
// set time info
Song * const s = Engine::getSong();
fTimeInfo.playing = s->isPlaying();
fTimeInfo.frame = s->getPlayPos(s->playMode()).frames(Engine::framesPerTick());
fTimeInfo.usecs = s->getMilliseconds()*1000;
fTimeInfo.bbt.bar = s->getBars() + 1;
fTimeInfo.bbt.beat = s->getBeat() + 1;
fTimeInfo.bbt.tick = s->getBeatTicks();
fTimeInfo.bbt.barStartTick = ticksPerBeat*s->getTimeSigModel().getNumerator()*s->getBars();
fTimeInfo.bbt.beatsPerBar = s->getTimeSigModel().getNumerator();
fTimeInfo.bbt.beatType = s->getTimeSigModel().getDenominator();
fTimeInfo.bbt.ticksPerBeat = ticksPerBeat;
fTimeInfo.bbt.beatsPerMinute = s->getTempo();
#ifndef _MSC_VER
float buf1[bufsize];
float buf2[bufsize];
#else
float *buf1 = static_cast<float *>(_alloca(bufsize * sizeof(float)));
float *buf2 = static_cast<float *>(_alloca(bufsize * sizeof(float)));
#endif
float* rBuf[] = { buf1, buf2 };
std::memset(buf1, 0, sizeof(float)*bufsize);
std::memset(buf2, 0, sizeof(float)*bufsize);
{
const QMutexLocker ml(&fMutex);
// TODO FIXME this is just here so it compiles.
// https://github.com/falkTX/Carla/blob/8bceb9ed173a10b29038f8abb4383710c0e497c1/source/includes/CarlaNative.h
// FIXME for v3.0, use const for the input buffer
#if CARLA_VERSION_HEX >= CARLA_VERSION_HEX_3
fDescriptor->process(fHandle, (const float**)rBuf, rBuf, bufsize, fMidiEvents, fMidiEventCount);
#else
fDescriptor->process(fHandle, rBuf, rBuf, bufsize, fMidiEvents, fMidiEventCount);
#endif
fMidiEventCount = 0;
}
for (uint i=0; i < bufsize; ++i)
{
workingBuffer[i][0] = buf1[i];
workingBuffer[i][1] = buf2[i];
}
}
bool CarlaInstrument::handleMidiEvent(const MidiEvent& event, const TimePos&, f_cnt_t offset)
{
const QMutexLocker ml(&fMutex);
if (fMidiEventCount >= kMaxMidiEvents)
return false;
NativeMidiEvent& nEvent(fMidiEvents[fMidiEventCount++]);
std::memset(&nEvent, 0, sizeof(NativeMidiEvent));
nEvent.port = 0;
nEvent.time = offset;
std::size_t written = writeToByteSeq(event, nEvent.data, sizeof(NativeMidiEvent::data));
if(written) { nEvent.size = written; }
else { --fMidiEventCount; }
return true;
}
gui::PluginView* CarlaInstrument::instantiateView(QWidget* parent)
{
// Disable plugin focus per https://bugreports.qt.io/browse/QTBUG-30181
#ifndef CARLA_OS_MAC
if (QWidget* const window = parent->window())
// TODO: Remove cast; Only needed for Qt4
fHost.uiParentId = (uintptr_t)window->winId();
else
#endif
fHost.uiParentId = 0;
std::free((char*)fHost.uiName);
// TODO - get plugin instance name
//fHost.uiName = strdup(parent->windowTitle().toUtf8().constData());
fHost.uiName = strdup(kIsPatchbay ? "CarlaPatchbay-LMMS" : "CarlaRack-LMMS");
return new gui::CarlaInstrumentView(this, parent);
}
void CarlaInstrument::sampleRateChanged()
{
fDescriptor->dispatcher(fHandle, NATIVE_PLUGIN_OPCODE_SAMPLE_RATE_CHANGED, 0, 0, nullptr, handleGetSampleRate());
}
// -------------------------------------------------------------------
namespace gui
{
CarlaInstrumentView::CarlaInstrumentView(CarlaInstrument* const instrument, QWidget* const parent)
: InstrumentViewFixedSize(instrument, parent),
fHandle(instrument->fHandle),
fDescriptor(instrument->fDescriptor),
fTimerId(fHandle != nullptr && fDescriptor->ui_idle != nullptr ? startTimer(30) : 0),
m_carlaInstrument(instrument),
m_parent(parent),
m_paramsSubWindow(nullptr),
m_paramsView(nullptr)
{
setAutoFillBackground(true);
QPalette pal;
pal.setBrush(backgroundRole(), instrument->kIsPatchbay ? PLUGIN_NAME::getIconPixmap("artwork-patchbay") : PLUGIN_NAME::getIconPixmap("artwork-rack"));
setPalette(pal);
auto l = new QHBoxLayout(this);
l->setContentsMargins( 20, 180, 10, 10 );
l->setSpacing(3);
l->setAlignment(Qt::AlignTop);
// Show GUI button
m_toggleUIButton = new QPushButton( tr( "Show GUI" ), this );
m_toggleUIButton->setCheckable( true );
m_toggleUIButton->setChecked( false );
m_toggleUIButton->setIcon( embed::getIconPixmap( "zoom" ) );
m_toggleUIButton->setFont(adjustedToPixelSize(m_toggleUIButton->font(), SMALL_FONT_SIZE));
connect( m_toggleUIButton, SIGNAL( clicked(bool) ), this, SLOT( toggleUI( bool ) ) );
m_toggleUIButton->setToolTip(
tr("Click here to show or hide the graphical user interface (GUI) of Carla."));
// Open params sub window button
m_toggleParamsWindowButton = new QPushButton(tr("Params"), this);
m_toggleParamsWindowButton->setIcon(embed::getIconPixmap("controller"));
m_toggleParamsWindowButton->setCheckable(true);
m_toggleParamsWindowButton->setFont(adjustedToPixelSize(m_toggleParamsWindowButton->font(), SMALL_FONT_SIZE));
#if CARLA_VERSION_HEX < CARLA_MIN_PARAM_VERSION
m_toggleParamsWindowButton->setEnabled(false);
m_toggleParamsWindowButton->setToolTip(tr("Available from Carla version 2.1 and up."));
#else
connect(m_toggleParamsWindowButton, SIGNAL(clicked(bool)), this, SLOT(toggleParamsWindow()));
#endif
// Add widgets to layout
l->addWidget( m_toggleUIButton );
l->addWidget(m_toggleParamsWindowButton);
// Connect signals
connect(m_toggleUIButton, SIGNAL(clicked(bool)), this, SLOT(toggleUI(bool)));
connect(instrument, SIGNAL(uiClosed()), this, SLOT(uiClosed()));
}
CarlaInstrumentView::~CarlaInstrumentView()
{
if (m_toggleUIButton->isChecked())
{
toggleUI(false);
}
#if CARLA_VERSION_HEX >= CARLA_MIN_PARAM_VERSION
if (m_paramsView)
{
delete m_paramsView;
m_paramsView = nullptr;
}
#endif
}
void CarlaInstrumentView::toggleUI(bool visible)
{
if (fHandle != nullptr && fDescriptor->ui_show != nullptr) {
// TODO: remove when fixed upstream
// change working path to location of carla.dll to avoid conflict with lmms
#if defined(CARLA_OS_WIN32) || defined(CARLA_OS_WIN64)
if (visible) {
QString backupDir = QDir::currentPath();
QDir::setCurrent(carla_get_library_folder());
fDescriptor->ui_show(fHandle, true);
QDir::setCurrent(backupDir);
return;
}
#endif
fDescriptor->ui_show(fHandle, visible);
}
}
void CarlaInstrumentView::uiClosed()
{
m_toggleUIButton->setChecked(false);
}
void CarlaInstrumentView::modelChanged()
{
}
void CarlaInstrumentView::timerEvent(QTimerEvent* event)
{
if (event->timerId() == fTimerId)
fDescriptor->ui_idle(fHandle);
InstrumentView::timerEvent(event);
}
void CarlaInstrumentView::toggleParamsWindow()
{
if (!m_paramsSubWindow)
{
m_paramsView = new CarlaParamsView(this, m_parent);
connect(m_paramsSubWindow, SIGNAL(uiClosed()), this, SLOT(paramsUiClosed()));
}
else
{
if (m_paramsSubWindow->isVisible())
{
m_paramsSubWindow->hide();
}
else
{
m_paramsSubWindow->show();
}
}
}
void CarlaInstrumentView::paramsUiClosed()
{
m_toggleParamsWindowButton->setChecked(false);
}
// -------------------------------------------------------------------
CarlaParamsView::CarlaParamsView(CarlaInstrumentView* const instrumentView, QWidget* const parent)
: InstrumentView(instrumentView->m_carlaInstrument, parent),
m_carlaInstrument(instrumentView->m_carlaInstrument),
m_carlaInstrumentView(instrumentView),
m_maxColumns(6),
m_curColumn(0),
m_curRow(0),
m_curOutColumn(0),
m_curOutRow(0)
{
auto centralWidget = new QWidget(this);
auto verticalLayout = new QVBoxLayout(centralWidget);
// -- Toolbar
m_toolBarLayout = new QHBoxLayout();
// Toolbar widgets
QSizePolicy sizePolicy(QSizePolicy::Maximum, QSizePolicy::Fixed);
sizePolicy.setHorizontalStretch(0);
sizePolicy.setVerticalStretch(0);
// Params filter line edit
m_paramsFilterLineEdit = new QLineEdit(this);
m_paramsFilterLineEdit->setPlaceholderText(tr("Search.."));
m_paramsFilterLineEdit->setCompleter(m_carlaInstrument->m_paramsCompleter);
// Clear filter line edit button
m_clearFilterButton = new QPushButton(tr(""), this);
m_clearFilterButton->setIcon(embed::getIconPixmap("edit_erase"));
m_clearFilterButton->setToolTip(tr("Clear filter text"));
sizePolicy.setHeightForWidth(m_clearFilterButton->sizePolicy().hasHeightForWidth());
m_clearFilterButton->setSizePolicy(sizePolicy);
// Show automated only button
m_automatedOnlyButton = new QPushButton(tr(""), this);
m_automatedOnlyButton->setIcon(embed::getIconPixmap("automation"));
m_automatedOnlyButton->setToolTip(
tr("Only show knobs with a connection."));
m_automatedOnlyButton->setCheckable(true);
sizePolicy.setHeightForWidth(m_automatedOnlyButton->sizePolicy().hasHeightForWidth());
m_automatedOnlyButton->setSizePolicy(sizePolicy);
// Group name combobox
m_groupFilterCombo = new QComboBox(this);
m_groupFilterModel = new QStringListModel(this);
m_groupFilterCombo->setModel(m_groupFilterModel);
// Add stuff to toolbar
m_toolBarLayout->addWidget(m_paramsFilterLineEdit);
m_toolBarLayout->addWidget(m_clearFilterButton);
m_toolBarLayout->addWidget(m_automatedOnlyButton);
m_toolBarLayout->addWidget(m_groupFilterCombo);
// -- Input params
auto inputFrame = new QFrame(this);
auto inputLayout = new QVBoxLayout(inputFrame);
auto inputLabel = new QLabel("Input parameters", inputFrame);
m_inputScrollArea = new QScrollArea(inputFrame);
m_inputScrollAreaWidgetContent = new QWidget();
m_inputScrollAreaLayout = new QGridLayout(m_inputScrollAreaWidgetContent);
m_inputScrollAreaWidgetContent->setLayout(m_inputScrollAreaLayout);
m_inputScrollAreaWidgetContent->setSizePolicy(QSizePolicy::MinimumExpanding, QSizePolicy::Preferred);
m_inputScrollArea->setVerticalScrollBarPolicy(Qt::ScrollBarAsNeeded);
m_inputScrollArea->setWidget(m_inputScrollAreaWidgetContent);
m_inputScrollArea->setWidgetResizable(true);
m_inputScrollArea->setFrameShadow(QFrame::Plain);
m_inputScrollArea->setFrameShape(QFrame::NoFrame);
m_inputScrollAreaLayout->setContentsMargins(3, 3, 3, 3);
m_inputScrollAreaLayout->setVerticalSpacing(12);
m_inputScrollAreaLayout->setHorizontalSpacing(6);
m_inputScrollAreaLayout->setColumnStretch(m_maxColumns, 1);
inputLayout->addWidget(inputLabel);
inputLayout->addWidget(m_inputScrollArea);
// -- Output params
auto outputFrame = new QFrame(this);
auto outputLayout = new QVBoxLayout(outputFrame);
auto outputLabel = new QLabel("Output parameters", outputFrame);
m_outputScrollArea = new QScrollArea(outputFrame);
m_outputScrollAreaWidgetContent = new QWidget();
m_outputScrollAreaLayout = new QGridLayout(m_outputScrollAreaWidgetContent);
m_outputScrollAreaWidgetContent->setLayout(m_outputScrollAreaLayout);
m_outputScrollAreaWidgetContent->setSizePolicy(QSizePolicy::MinimumExpanding, QSizePolicy::Preferred);
m_outputScrollArea->setVerticalScrollBarPolicy(Qt::ScrollBarAsNeeded);
m_outputScrollArea->setWidget(m_outputScrollAreaWidgetContent);
m_outputScrollArea->setWidgetResizable(true);
m_outputScrollArea->setFrameShadow(QFrame::Plain);
m_outputScrollArea->setFrameShape(QFrame::NoFrame);
m_outputScrollAreaLayout->setContentsMargins(3, 28, 3, 3);
m_outputScrollAreaLayout->setVerticalSpacing(12);
m_outputScrollAreaLayout->setHorizontalSpacing(6);
m_outputScrollAreaLayout->setColumnStretch(m_maxColumns, 1);
outputLayout->addWidget(outputLabel);
outputLayout->addWidget(m_outputScrollArea);
// -- QSplitter
auto splitter = new QSplitter(Qt::Vertical, this);
// -- Add layout and widgets.
verticalLayout->addLayout(m_toolBarLayout);
splitter->addWidget(inputFrame);
splitter->addWidget(outputFrame);
verticalLayout->addWidget(splitter);
#if QT_VERSION < 0x50C00
// Workaround for a bug in Qt versions below 5.12,
// where argument-dependent-lookup fails for QFlags operators
// declared inside a namepsace.
// This affects the Q_DECLARE_OPERATORS_FOR_FLAGS macro in Instrument.h
// See also: https://codereview.qt-project.org/c/qt/qtbase/+/225348
using ::operator|;
#endif
// -- Sub window
auto win = new CarlaParamsSubWindow(getGUI()->mainWindow()->workspace()->viewport(),
Qt::SubWindow | Qt::CustomizeWindowHint | Qt::WindowTitleHint | Qt::WindowSystemMenuHint);
m_carlaInstrumentView->m_paramsSubWindow = getGUI()->mainWindow()->workspace()->addSubWindow(win);
m_carlaInstrumentView->m_paramsSubWindow->setSizePolicy(
QSizePolicy::MinimumExpanding, QSizePolicy::MinimumExpanding);
m_carlaInstrumentView->m_paramsSubWindow->setMinimumHeight(200);
m_carlaInstrumentView->m_paramsSubWindow->setMinimumWidth(200);
m_carlaInstrumentView->m_paramsSubWindow->resize(600, 400);
m_carlaInstrumentView->m_paramsSubWindow->setWidget(centralWidget);
centralWidget->setWindowTitle(m_carlaInstrument->instrumentTrack()->name() + tr(" - Parameters"));
// -- Connect signals
connect(m_carlaInstrumentView->m_paramsSubWindow, SIGNAL(resized()), this, SLOT(windowResized()));
connect(m_paramsFilterLineEdit, SIGNAL(textChanged(const QString)), this, SLOT(filterKnobs()));
connect(m_clearFilterButton, SIGNAL(clicked(bool)), this, SLOT(clearFilterText()));
connect(m_automatedOnlyButton, SIGNAL(toggled(bool)), this, SLOT(filterKnobs()));
connect(m_groupFilterCombo, SIGNAL(currentTextChanged(const QString)), this, SLOT(filterKnobs()));
connect(m_carlaInstrument, SIGNAL(paramsUpdated()), this, SLOT(refreshKnobs()));
m_carlaInstrumentView->m_paramsSubWindow->show(); // Show the subwindow
// Add knobs if there are any already.
// Call this after show() so the m_inputScrollArea->width() is set properly.
refreshKnobs(); // Will trigger filterKnobs() due m_groupFilterCombo->setCurrentIndex(0)
}
CarlaParamsView::~CarlaParamsView()
{
// Close and delete m_paramsSubWindow
if (m_carlaInstrumentView->m_paramsSubWindow)
{
m_carlaInstrumentView->m_paramsSubWindow->setAttribute(Qt::WA_DeleteOnClose);
m_carlaInstrumentView->m_paramsSubWindow->close();
delete m_carlaInstrumentView->m_paramsSubWindow;
m_carlaInstrumentView->m_paramsSubWindow = nullptr;
}
m_carlaInstrumentView->m_paramsView = nullptr;
// Clear models
if (!m_carlaInstrument->m_paramModels.empty())
{
m_carlaInstrument->clearParamModels();
}
}
void CarlaParamsView::clearFilterText()
{
m_paramsFilterLineEdit->setText("");
}
void CarlaParamsView::filterKnobs()
{
clearKnobs(); // Remove all knobs from the layout.
if (!m_carlaInstrument->m_paramGroupCount)
{
return;
}
// Calc how many knobs will fit horizontal in the params window.
uint16_t maxKnobWidth = m_maxKnobWidthPerGroup[m_groupFilterCombo->currentIndex()];
maxKnobWidth += m_inputScrollAreaLayout->spacing();
if (!maxKnobWidth)
{
// Prevent possible division by zero.
return;
}
m_maxColumns = m_inputScrollArea->width() / maxKnobWidth;
QString text = m_paramsFilterLineEdit->text();
for (uint32_t i = 0; i < m_knobs.size(); ++i)
{
// Don't show disabled (unused) knobs.
if (!m_carlaInstrument->m_paramModels[i]->enabled())
{
continue;
}
// Filter on automation only
if (m_automatedOnlyButton->isChecked())
{
if (! m_carlaInstrument->m_paramModels[i]->isAutomatedOrControlled())
{
continue;
}
}
// Filter on group name
if (m_groupFilterCombo->currentText() != m_carlaInstrument->m_paramModels[i]->groupName())
{
continue;
}
// Filter on text
if (text != "")
{
if (m_knobs[i]->objectName().contains(text, Qt::CaseInsensitive))
{
addKnob(i);
}
}
else
{
addKnob(i);
}
}
// Add spacer so all knobs go to top
auto verticalSpacer = new QSpacerItem(20, 40, QSizePolicy::Minimum, QSizePolicy::Expanding);
m_inputScrollAreaLayout->addItem(verticalSpacer, m_curRow+1, 0, 1, 1);
}
void CarlaParamsView::refreshKnobs()
{
// Make sure all the knobs are deleted.
for (uint32_t i = 0; i < m_knobs.size(); ++i)
{
delete m_knobs[i]; // Delete knob widgets itself.
}
m_knobs.clear(); // Clear the pointer list.
// Reset position data.
m_curColumn = 0;
m_curRow = 0;
m_curOutColumn = 0;
m_curOutRow = 0;
// Clear max knob width per group
m_maxKnobWidthPerGroup.clear();
m_maxKnobWidthPerGroup.reserve(m_carlaInstrument->m_paramGroupCount);
for (uint8_t i = 0; i < m_carlaInstrument->m_paramGroupCount; i++)
{
m_maxKnobWidthPerGroup[i] = 0;
}
if (m_carlaInstrument->m_paramModels.empty()) { return; }