/[svn]/linuxsampler/trunk/src/Sampler.cpp
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Contents of /linuxsampler/trunk/src/Sampler.cpp

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Revision 1695 - (show annotations) (download)
Sat Feb 16 01:09:33 2008 UTC (16 years, 1 month ago) by schoenebeck
File size: 26115 byte(s)
* added new LSCP event "DEVICE_MIDI" which can be used by frontends to
  react on MIDI data arriving on certain MIDI input devices (so far only
  Note-On and Note-Off events are sent via this LSCP event)
* bumped version to 0.5.1.4cvs

1 /***************************************************************************
2 * *
3 * LinuxSampler - modular, streaming capable sampler *
4 * *
5 * Copyright (C) 2003, 2004 by Benno Senoner and Christian Schoenebeck *
6 * Copyright (C) 2005 - 2008 Christian Schoenebeck *
7 * *
8 * This library is free software; you can redistribute it and/or modify *
9 * it under the terms of the GNU General Public License as published by *
10 * the Free Software Foundation; either version 2 of the License, or *
11 * (at your option) any later version. *
12 * *
13 * This library is distributed in the hope that it will be useful, *
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
16 * GNU General Public License for more details. *
17 * *
18 * You should have received a copy of the GNU General Public License *
19 * along with this library; if not, write to the Free Software *
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, *
21 * MA 02111-1307 USA *
22 ***************************************************************************/
23
24 #include <sstream>
25
26 #include "Sampler.h"
27
28 #include "common/global_private.h"
29 #include "engines/EngineFactory.h"
30 #include "engines/EngineChannelFactory.h"
31 #include "plugins/InstrumentEditorFactory.h"
32 #include "drivers/audio/AudioOutputDeviceFactory.h"
33 #include "drivers/midi/MidiInputDeviceFactory.h"
34 #include "drivers/midi/MidiInstrumentMapper.h"
35
36 namespace LinuxSampler {
37
38 // ******************************************************************
39 // * SamplerChannel
40
41 SamplerChannel::SamplerChannel(Sampler* pS) {
42 pSampler = pS;
43 pEngineChannel = NULL;
44 pAudioOutputDevice = NULL;
45 pMidiInputDevice = NULL;
46 iMidiPort = 0;
47 midiChannel = midi_chan_all;
48 iIndex = -1;
49 }
50
51 SamplerChannel::~SamplerChannel() {
52 if (pEngineChannel) {
53 Engine* engine = pEngineChannel->GetEngine();
54 if (pAudioOutputDevice) pAudioOutputDevice->Disconnect(engine);
55
56 MidiInputPort* pMidiInputPort = (pEngineChannel) ? pEngineChannel->GetMidiInputPort() : __GetMidiInputDevicePort(GetMidiInputChannel());
57 if (pMidiInputPort) pMidiInputPort->Disconnect(pEngineChannel);
58 if (pEngineChannel) {
59 if (pAudioOutputDevice) pEngineChannel->DisconnectAudioOutputDevice();
60 EngineChannelFactory::Destroy(pEngineChannel);
61
62 // reconnect engine if it still exists
63 const std::set<Engine*>& engines = EngineFactory::EngineInstances();
64 if (engines.find(engine) != engines.end()) pAudioOutputDevice->Connect(engine);
65 }
66 }
67 }
68
69 void SamplerChannel::SetEngineType(String EngineType) throw (Exception) {
70 dmsg(2,("SamplerChannel: Assigning engine type..."));
71
72 if (pEngineChannel) {
73 if (!strcasecmp(pEngineChannel->EngineName().c_str(), EngineType.c_str())) {
74 dmsg(2,("OK\n"));
75 return;
76 }
77 }
78
79 fireEngineToBeChanged();
80
81 // create new engine channel
82 EngineChannel* pNewEngineChannel = EngineChannelFactory::Create(EngineType);
83 if (!pNewEngineChannel) throw Exception("Unknown engine type");
84
85 //FIXME: hack to allow fast retrieval of engine channel's sampler channel index
86 pNewEngineChannel->iSamplerChannelIndex = Index();
87
88 // dereference midi input port.
89 MidiInputPort* pMidiInputPort = __GetMidiInputDevicePort(GetMidiInputPort());
90 // disconnect old engine channel
91 if (pEngineChannel) {
92 Engine* engine = pEngineChannel->GetEngine();
93 if (pAudioOutputDevice) pAudioOutputDevice->Disconnect(engine);
94
95 if (pMidiInputPort) pMidiInputPort->Disconnect(pEngineChannel);
96 if (pAudioOutputDevice) pEngineChannel->DisconnectAudioOutputDevice();
97 EngineChannelFactory::Destroy(pEngineChannel);
98
99 // reconnect engine if it still exists
100 const std::set<Engine*>& engines = EngineFactory::EngineInstances();
101 if (engines.find(engine) != engines.end()) pAudioOutputDevice->Connect(engine);
102 }
103
104 // connect new engine channel
105 if (pAudioOutputDevice) {
106 pNewEngineChannel->Connect(pAudioOutputDevice);
107 pAudioOutputDevice->Connect(pNewEngineChannel->GetEngine());
108 }
109 if (pMidiInputPort) pMidiInputPort->Connect(pNewEngineChannel, GetMidiInputChannel());
110 pEngineChannel = pNewEngineChannel;
111
112 // from now on get MIDI device and port from EngineChannel object
113 this->pMidiInputDevice = NULL;
114 this->iMidiPort = 0;
115
116 pEngineChannel->StatusChanged(true);
117 fireEngineChanged();
118 dmsg(2,("OK\n"));
119 }
120
121 void SamplerChannel::SetAudioOutputDevice(AudioOutputDevice* pDevice) {
122 if(pAudioOutputDevice == pDevice) return;
123
124 // disconnect old device
125 if (pAudioOutputDevice && pEngineChannel) {
126 Engine* engine = pEngineChannel->GetEngine();
127 pAudioOutputDevice->Disconnect(engine);
128
129 pEngineChannel->DisconnectAudioOutputDevice();
130
131 // reconnect engine if it still exists
132 const std::set<Engine*>& engines = EngineFactory::EngineInstances();
133 if (engines.find(engine) != engines.end()) pAudioOutputDevice->Connect(engine);
134 }
135
136 // connect new device
137 pAudioOutputDevice = pDevice;
138 if (pEngineChannel) {
139 pEngineChannel->Connect(pAudioOutputDevice);
140 pAudioOutputDevice->Connect(pEngineChannel->GetEngine());
141 }
142 }
143
144 void SamplerChannel::SetMidiInputDevice(MidiInputDevice* pDevice) {
145 SetMidiInput(pDevice, 0, GetMidiInputChannel());
146 }
147
148 void SamplerChannel::SetMidiInputPort(int MidiPort) {
149 SetMidiInput(GetMidiInputDevice(), MidiPort, GetMidiInputChannel());
150 }
151
152 void SamplerChannel::SetMidiInputChannel(midi_chan_t MidiChannel) {
153 SetMidiInput(GetMidiInputDevice(), GetMidiInputPort(), MidiChannel);
154 }
155
156 void SamplerChannel::SetMidiInput(MidiInputDevice* pDevice, int iMidiPort, midi_chan_t MidiChannel) {
157 if (!pDevice) throw Exception("No MIDI input device assigned.");
158
159 // get old and new midi input port
160 MidiInputPort* pOldMidiInputPort = __GetMidiInputDevicePort(GetMidiInputPort());
161 MidiInputPort* pNewMidiInputPort = pDevice->GetPort(iMidiPort);
162
163 // disconnect old device port
164 if (pOldMidiInputPort && pEngineChannel) pOldMidiInputPort->Disconnect(pEngineChannel);
165 // remember new device, port and channel if not engine channel yet created
166 if (!pEngineChannel) {
167 this->pMidiInputDevice = pDevice;
168 this->iMidiPort = iMidiPort;
169 this->midiChannel = MidiChannel;
170 }
171
172 // connect new device port
173 if (pNewMidiInputPort && pEngineChannel) pNewMidiInputPort->Connect(pEngineChannel, MidiChannel);
174 // Ooops.
175 if (pNewMidiInputPort == NULL)
176 throw Exception("There is no MIDI input port with index " + ToString(iMidiPort) + ".");
177 }
178
179 EngineChannel* SamplerChannel::GetEngineChannel() {
180 return pEngineChannel;
181 }
182
183 midi_chan_t SamplerChannel::GetMidiInputChannel() {
184 if (pEngineChannel) this->midiChannel = pEngineChannel->MidiChannel();
185 return this->midiChannel;
186 }
187
188 int SamplerChannel::GetMidiInputPort() {
189 MidiInputPort* pMidiInputPort = (pEngineChannel) ? pEngineChannel->GetMidiInputPort() : NULL;
190 if (pMidiInputPort) this->iMidiPort = (int) pMidiInputPort->GetPortNumber();
191 return iMidiPort;
192 }
193
194 AudioOutputDevice* SamplerChannel::GetAudioOutputDevice() {
195 return pAudioOutputDevice;
196 }
197
198 MidiInputDevice* SamplerChannel::GetMidiInputDevice() {
199 if (pEngineChannel)
200 pMidiInputDevice = (pEngineChannel->GetMidiInputPort()) ? pEngineChannel->GetMidiInputPort()->GetDevice() : NULL;
201 return pMidiInputDevice;
202 }
203
204 uint SamplerChannel::Index() {
205 if (iIndex >= 0) return iIndex;
206
207 Sampler::SamplerChannelMap::iterator iter = pSampler->mSamplerChannels.begin();
208 for (; iter != pSampler->mSamplerChannels.end(); iter++) {
209 if (iter->second == this) {
210 iIndex = iter->first;
211 return iIndex;
212 }
213 }
214
215 throw Exception("Internal error: SamplerChannel index not found");
216 }
217
218 void SamplerChannel::AddEngineChangeListener(EngineChangeListener* l) {
219 llEngineChangeListeners.AddListener(l);
220 }
221
222 void SamplerChannel::RemoveEngineChangeListener(EngineChangeListener* l) {
223 llEngineChangeListeners.RemoveListener(l);
224 }
225
226 void SamplerChannel::RemoveAllEngineChangeListeners() {
227 llEngineChangeListeners.RemoveAllListeners();
228 }
229
230 void SamplerChannel::fireEngineToBeChanged() {
231 for (int i = 0; i < llEngineChangeListeners.GetListenerCount(); i++) {
232 llEngineChangeListeners.GetListener(i)->EngineToBeChanged(Index());
233 }
234 }
235
236 void SamplerChannel::fireEngineChanged() {
237 for (int i = 0; i < llEngineChangeListeners.GetListenerCount(); i++) {
238 llEngineChangeListeners.GetListener(i)->EngineChanged(Index());
239 }
240 }
241
242 MidiInputPort* SamplerChannel::__GetMidiInputDevicePort(int iMidiPort) {
243 MidiInputPort* pMidiInputPort = NULL;
244 MidiInputDevice* pMidiInputDevice = GetMidiInputDevice();
245 if (pMidiInputDevice)
246 pMidiInputPort = pMidiInputDevice->GetPort(iMidiPort);
247 return pMidiInputPort;
248 }
249
250
251
252 // ******************************************************************
253 // * Sampler
254
255 Sampler::Sampler() {
256 eventHandler.SetSampler(this);
257 }
258
259 Sampler::~Sampler() {
260 Reset();
261 }
262
263 uint Sampler::SamplerChannels() {
264 return mSamplerChannels.size();
265 }
266
267 void Sampler::AddChannelCountListener(ChannelCountListener* l) {
268 llChannelCountListeners.AddListener(l);
269 }
270
271 void Sampler::RemoveChannelCountListener(ChannelCountListener* l) {
272 llChannelCountListeners.RemoveListener(l);
273 }
274
275 void Sampler::fireChannelCountChanged(int NewCount) {
276 for (int i = 0; i < llChannelCountListeners.GetListenerCount(); i++) {
277 llChannelCountListeners.GetListener(i)->ChannelCountChanged(NewCount);
278 }
279 }
280
281 void Sampler::fireChannelAdded(SamplerChannel* pChannel) {
282 for (int i = 0; i < llChannelCountListeners.GetListenerCount(); i++) {
283 llChannelCountListeners.GetListener(i)->ChannelAdded(pChannel);
284 }
285 }
286
287 void Sampler::fireChannelToBeRemoved(SamplerChannel* pChannel) {
288 for (int i = 0; i < llChannelCountListeners.GetListenerCount(); i++) {
289 llChannelCountListeners.GetListener(i)->ChannelToBeRemoved(pChannel);
290 }
291 }
292
293 void Sampler::AddAudioDeviceCountListener(AudioDeviceCountListener* l) {
294 llAudioDeviceCountListeners.AddListener(l);
295 }
296
297 void Sampler::RemoveAudioDeviceCountListener(AudioDeviceCountListener* l) {
298 llAudioDeviceCountListeners.RemoveListener(l);
299 }
300
301 void Sampler::fireAudioDeviceCountChanged(int NewCount) {
302 for (int i = 0; i < llAudioDeviceCountListeners.GetListenerCount(); i++) {
303 llAudioDeviceCountListeners.GetListener(i)->AudioDeviceCountChanged(NewCount);
304 }
305 }
306
307 void Sampler::AddMidiDeviceCountListener(MidiDeviceCountListener* l) {
308 llMidiDeviceCountListeners.AddListener(l);
309 }
310
311 void Sampler::RemoveMidiDeviceCountListener(MidiDeviceCountListener* l) {
312 llMidiDeviceCountListeners.RemoveListener(l);
313 }
314
315 void Sampler::fireMidiDeviceCountChanged(int NewCount) {
316 for (int i = 0; i < llMidiDeviceCountListeners.GetListenerCount(); i++) {
317 llMidiDeviceCountListeners.GetListener(i)->MidiDeviceCountChanged(NewCount);
318 }
319 }
320
321 void Sampler::fireMidiDeviceToBeDestroyed(MidiInputDevice* pDevice) {
322 for (int i = 0; i < llMidiDeviceCountListeners.GetListenerCount(); i++) {
323 llMidiDeviceCountListeners.GetListener(i)->MidiDeviceToBeDestroyed(pDevice);
324 }
325 }
326
327 void Sampler::fireMidiDeviceCreated(MidiInputDevice* pDevice) {
328 for (int i = 0; i < llMidiDeviceCountListeners.GetListenerCount(); i++) {
329 llMidiDeviceCountListeners.GetListener(i)->MidiDeviceCreated(pDevice);
330 }
331 }
332
333 void Sampler::AddVoiceCountListener(VoiceCountListener* l) {
334 llVoiceCountListeners.AddListener(l);
335 }
336
337 void Sampler::RemoveVoiceCountListener(VoiceCountListener* l) {
338 llVoiceCountListeners.RemoveListener(l);
339 }
340
341 void Sampler::fireVoiceCountChanged(int ChannelId, int NewCount) {
342 for (int i = 0; i < llVoiceCountListeners.GetListenerCount(); i++) {
343 llVoiceCountListeners.GetListener(i)->VoiceCountChanged(ChannelId, NewCount);
344 }
345 }
346
347 void Sampler::AddStreamCountListener(StreamCountListener* l) {
348 llStreamCountListeners.AddListener(l);
349 }
350
351 void Sampler::RemoveStreamCountListener(StreamCountListener* l) {
352 llStreamCountListeners.RemoveListener(l);
353 }
354
355 void Sampler::fireStreamCountChanged(int ChannelId, int NewCount) {
356 for (int i = 0; i < llStreamCountListeners.GetListenerCount(); i++) {
357 llStreamCountListeners.GetListener(i)->StreamCountChanged(ChannelId, NewCount);
358 }
359 }
360
361 void Sampler::AddBufferFillListener(BufferFillListener* l) {
362 llBufferFillListeners.AddListener(l);
363 }
364
365 void Sampler::RemoveBufferFillListener(BufferFillListener* l) {
366 llBufferFillListeners.RemoveListener(l);
367 }
368
369 void Sampler::fireBufferFillChanged(int ChannelId, String FillData) {
370 for (int i = 0; i < llBufferFillListeners.GetListenerCount(); i++) {
371 llBufferFillListeners.GetListener(i)->BufferFillChanged(ChannelId, FillData);
372 }
373 }
374
375 void Sampler::AddTotalStreamCountListener(TotalStreamCountListener* l) {
376 llTotalStreamCountListeners.AddListener(l);
377 }
378
379 void Sampler::RemoveTotalStreamCountListener(TotalStreamCountListener* l) {
380 llTotalStreamCountListeners.RemoveListener(l);
381 }
382
383 void Sampler::fireTotalStreamCountChanged(int NewCount) {
384 for (int i = 0; i < llTotalStreamCountListeners.GetListenerCount(); i++) {
385 llTotalStreamCountListeners.GetListener(i)->TotalStreamCountChanged(NewCount);
386 }
387 }
388
389 void Sampler::AddTotalVoiceCountListener(TotalVoiceCountListener* l) {
390 llTotalVoiceCountListeners.AddListener(l);
391 }
392
393 void Sampler::RemoveTotalVoiceCountListener(TotalVoiceCountListener* l) {
394 llTotalVoiceCountListeners.RemoveListener(l);
395 }
396
397 void Sampler::fireTotalVoiceCountChanged(int NewCount) {
398 for (int i = 0; i < llTotalVoiceCountListeners.GetListenerCount(); i++) {
399 llTotalVoiceCountListeners.GetListener(i)->TotalVoiceCountChanged(NewCount);
400 }
401 }
402
403 void Sampler::AddFxSendCountListener(FxSendCountListener* l) {
404 llFxSendCountListeners.AddListener(l);
405 }
406
407 void Sampler::RemoveFxSendCountListener(FxSendCountListener* l) {
408 llFxSendCountListeners.RemoveListener(l);
409 }
410
411 void Sampler::fireFxSendCountChanged(int ChannelId, int NewCount) {
412 for (int i = 0; i < llFxSendCountListeners.GetListenerCount(); i++) {
413 llFxSendCountListeners.GetListener(i)->FxSendCountChanged(ChannelId, NewCount);
414 }
415 }
416
417 void Sampler::EventHandler::EngineToBeChanged(int ChannelId) {
418 // nothing to do here
419 }
420
421 void Sampler::EventHandler::EngineChanged(int ChannelId) {
422 EngineChannel* engineChannel = pSampler->GetSamplerChannel(ChannelId)->GetEngineChannel();
423 if(engineChannel == NULL) return;
424 engineChannel->AddFxSendCountListener(this);
425 }
426
427 void Sampler::EventHandler::FxSendCountChanged(int ChannelId, int NewCount) {
428 pSampler->fireFxSendCountChanged(ChannelId, NewCount);
429 }
430
431
432 SamplerChannel* Sampler::AddSamplerChannel() {
433 // if there's no sampler channel yet
434 if (!mSamplerChannels.size()) {
435 SamplerChannel* pChannel = new SamplerChannel(this);
436 mSamplerChannels[0] = pChannel;
437 fireChannelAdded(pChannel);
438 fireChannelCountChanged(1);
439 pChannel->AddEngineChangeListener(&eventHandler);
440 return pChannel;
441 }
442
443 // get the highest used sampler channel index
444 uint lastIndex = (--(mSamplerChannels.end()))->first;
445
446 // check if we reached the index limit
447 if (lastIndex + 1 < lastIndex) {
448 // search for an unoccupied sampler channel index starting from 0
449 for (uint i = 0; i < lastIndex; i++) {
450 if (mSamplerChannels.find(i) != mSamplerChannels.end()) continue;
451 // we found an unused index, so insert the new channel there
452 SamplerChannel* pChannel = new SamplerChannel(this);
453 mSamplerChannels[i] = pChannel;
454 fireChannelAdded(pChannel);
455 fireChannelCountChanged(SamplerChannels());
456 pChannel->AddEngineChangeListener(&eventHandler);
457 return pChannel;
458 }
459 throw Exception("Internal error: could not find unoccupied sampler channel index.");
460 }
461
462 // we have not reached the index limit so we just add the channel past the highest index
463 SamplerChannel* pChannel = new SamplerChannel(this);
464 mSamplerChannels[lastIndex + 1] = pChannel;
465 fireChannelAdded(pChannel);
466 fireChannelCountChanged(SamplerChannels());
467 pChannel->AddEngineChangeListener(&eventHandler);
468 return pChannel;
469 }
470
471 SamplerChannel* Sampler::GetSamplerChannel(uint uiSamplerChannel) {
472 return (mSamplerChannels.find(uiSamplerChannel) != mSamplerChannels.end()) ? mSamplerChannels[uiSamplerChannel] : NULL;
473 }
474
475 std::map<uint, SamplerChannel*> Sampler::GetSamplerChannels() {
476 return mSamplerChannels;
477 }
478
479 void Sampler::RemoveSamplerChannel(SamplerChannel* pSamplerChannel) {
480 SamplerChannelMap::iterator iterChan = mSamplerChannels.begin();
481 for (; iterChan != mSamplerChannels.end(); iterChan++) {
482 if (iterChan->second == pSamplerChannel) {
483 fireChannelToBeRemoved(pSamplerChannel);
484 pSamplerChannel->RemoveAllEngineChangeListeners();
485 mSamplerChannels.erase(iterChan);
486 delete pSamplerChannel;
487 fireChannelCountChanged(SamplerChannels());
488 return;
489 }
490 }
491 }
492
493 void Sampler::RemoveSamplerChannel(uint uiSamplerChannel) {
494 SamplerChannel* pChannel = GetSamplerChannel(uiSamplerChannel);
495 if (!pChannel) return;
496 RemoveSamplerChannel(pChannel);
497 }
498
499 std::vector<String> Sampler::AvailableAudioOutputDrivers() {
500 return AudioOutputDeviceFactory::AvailableDrivers();
501 }
502
503 std::vector<String> Sampler::AvailableMidiInputDrivers() {
504 return MidiInputDeviceFactory::AvailableDrivers();
505 }
506
507 std::vector<String> Sampler::AvailableEngineTypes() {
508 return EngineFactory::AvailableEngineTypes();
509 }
510
511 AudioOutputDevice* Sampler::CreateAudioOutputDevice(String AudioDriver, std::map<String,String> Parameters) throw (Exception) {
512 // create new device
513 AudioOutputDevice* pDevice = AudioOutputDeviceFactory::Create(AudioDriver, Parameters);
514
515 // add new audio device to the audio device list
516 for (uint i = 0; ; i++) { // seek for a free place starting from the beginning
517 if (!mAudioOutputDevices[i]) {
518 mAudioOutputDevices[i] = pDevice;
519 break;
520 }
521 }
522
523 fireAudioDeviceCountChanged(AudioOutputDevices());
524 return pDevice;
525 }
526
527 uint Sampler::AudioOutputDevices() {
528 return mAudioOutputDevices.size();
529 }
530
531 uint Sampler::MidiInputDevices() {
532 return mMidiInputDevices.size();
533 }
534
535 std::map<uint, AudioOutputDevice*> Sampler::GetAudioOutputDevices() {
536 return mAudioOutputDevices;
537 }
538
539 std::map<uint, MidiInputDevice*> Sampler::GetMidiInputDevices() {
540 return mMidiInputDevices;
541 }
542
543 void Sampler::DestroyAudioOutputDevice(AudioOutputDevice* pDevice) throw (Exception) {
544 AudioOutputDeviceMap::iterator iter = mAudioOutputDevices.begin();
545 for (; iter != mAudioOutputDevices.end(); iter++) {
546 if (iter->second == pDevice) {
547 // check if there are still sampler engines connected to this device
548 for (uint i = 0; i < SamplerChannels(); i++)
549 if (GetSamplerChannel(i)->GetAudioOutputDevice() == pDevice) throw Exception("Sampler channel " + ToString(i) + " is still connected to the audio output device.");
550
551 // disable device
552 pDevice->Stop();
553
554 // remove device from the device list
555 mAudioOutputDevices.erase(iter);
556
557 // destroy and free device from memory
558 delete pDevice;
559
560 fireAudioDeviceCountChanged(AudioOutputDevices());
561 break;
562 }
563 }
564 }
565
566 void Sampler::DestroyMidiInputDevice(MidiInputDevice* pDevice) throw (Exception) {
567 MidiInputDeviceMap::iterator iter = mMidiInputDevices.begin();
568 for (; iter != mMidiInputDevices.end(); iter++) {
569 if (iter->second == pDevice) {
570 // check if there are still sampler engines connected to this device
571 for (uint i = 0; i < SamplerChannels(); i++)
572 if (GetSamplerChannel(i)->GetMidiInputDevice() == pDevice) throw Exception("Sampler channel " + ToString(i) + " is still connected to the midi input device.");
573
574 fireMidiDeviceToBeDestroyed(pDevice);
575
576 // disable device
577 pDevice->StopListen();
578
579 // remove device from the device list
580 mMidiInputDevices.erase(iter);
581
582 // destroy and free device from memory
583 delete pDevice;
584
585 fireMidiDeviceCountChanged(MidiInputDevices());
586 break;
587 }
588 }
589 }
590
591 MidiInputDevice* Sampler::CreateMidiInputDevice(String MidiDriver, std::map<String,String> Parameters) throw (Exception) {
592 // create new device
593 MidiInputDevice* pDevice = MidiInputDeviceFactory::Create(MidiDriver, Parameters, this);
594
595 // add new device to the midi device list
596 for (uint i = 0; ; i++) { // seek for a free place starting from the beginning
597 if (!mMidiInputDevices[i]) {
598 mMidiInputDevices[i] = pDevice;
599 break;
600 }
601 }
602
603 fireMidiDeviceCreated(pDevice);
604 fireMidiDeviceCountChanged(MidiInputDevices());
605 return pDevice;
606 }
607
608 int Sampler::GetDiskStreamCount() {
609 int count = 0;
610 std::set<Engine*>::iterator it = EngineFactory::EngineInstances().begin();
611
612 for(; it != EngineFactory::EngineInstances().end(); it++) {
613 count += (*it)->DiskStreamCount();
614 }
615
616 return count;
617 }
618
619 int Sampler::GetVoiceCount() {
620 int count = 0;
621 std::set<Engine*>::iterator it = EngineFactory::EngineInstances().begin();
622
623 for(; it != EngineFactory::EngineInstances().end(); it++) {
624 count += (*it)->VoiceCount();
625 }
626
627 return count;
628 }
629
630 void Sampler::Reset() {
631 // delete sampler channels
632 try {
633 while (true) {
634 SamplerChannelMap::iterator iter = mSamplerChannels.begin();
635 if (iter == mSamplerChannels.end()) break;
636 RemoveSamplerChannel(iter->second);
637 }
638 }
639 catch(...) {
640 std::cerr << "Sampler::Reset(): Exception occured while trying to delete all sampler channels, exiting.\n" << std::flush;
641 exit(EXIT_FAILURE);
642 }
643
644 // delete midi input devices
645 try {
646 while (true) {
647 MidiInputDeviceMap::iterator iter = mMidiInputDevices.begin();
648 if (iter == mMidiInputDevices.end()) break;
649 DestroyMidiInputDevice(iter->second);
650 }
651 }
652 catch(...) {
653 std::cerr << "Sampler::Reset(): Exception occured while trying to delete all MIDI input devices, exiting.\n" << std::flush;
654 exit(EXIT_FAILURE);
655 }
656
657 // delete audio output devices
658 try {
659 while (true) {
660 AudioOutputDeviceMap::iterator iter = mAudioOutputDevices.begin();
661 if (iter == mAudioOutputDevices.end()) break;
662 DestroyAudioOutputDevice(iter->second);
663 }
664 }
665 catch(...) {
666 std::cerr << "Sampler::Reset(): Exception occured while trying to delete all audio output devices, exiting.\n" << std::flush;
667 exit(EXIT_FAILURE);
668 }
669
670 // delete MIDI instrument maps
671 try {
672 MidiInstrumentMapper::RemoveAllMaps();
673 }
674 catch(...) {
675 std::cerr << "Sampler::Reset(): Exception occured while trying to delete all MIDI instrument maps, exiting.\n" << std::flush;
676 exit(EXIT_FAILURE);
677 }
678
679 // unload all instrument editor DLLs
680 InstrumentEditorFactory::ClosePlugins();
681 }
682
683 } // namespace LinuxSampler

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