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

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revision 1130 by iliev, Sun Mar 25 18:59:14 2007 UTC revision 2123 by schoenebeck, Wed Sep 15 10:04:07 2010 UTC
# Line 3  Line 3 
3   *   LinuxSampler - modular, streaming capable sampler                     *   *   LinuxSampler - modular, streaming capable sampler                     *
4   *                                                                         *   *                                                                         *
5   *   Copyright (C) 2003, 2004 by Benno Senoner and Christian Schoenebeck   *   *   Copyright (C) 2003, 2004 by Benno Senoner and Christian Schoenebeck   *
6   *   Copyright (C) 2005 - 2007 Christian Schoenebeck                       *   *   Copyright (C) 2005 - 2010 Christian Schoenebeck                       *
7   *                                                                         *   *                                                                         *
8   *   This library is free software; you can redistribute it and/or modify  *   *   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  *   *   it under the terms of the GNU General Public License as published by  *
# Line 25  Line 25 
25    
26  #include "Sampler.h"  #include "Sampler.h"
27    
28    #include "common/global_private.h"
29  #include "engines/EngineFactory.h"  #include "engines/EngineFactory.h"
30  #include "engines/EngineChannelFactory.h"  #include "engines/EngineChannelFactory.h"
31    #include "plugins/InstrumentEditorFactory.h"
32  #include "drivers/audio/AudioOutputDeviceFactory.h"  #include "drivers/audio/AudioOutputDeviceFactory.h"
33  #include "drivers/midi/MidiInputDeviceFactory.h"  #include "drivers/midi/MidiInputDeviceFactory.h"
34  #include "drivers/midi/MidiInstrumentMapper.h"  #include "drivers/midi/MidiInstrumentMapper.h"
35    #include "common/Features.h"
36    #include "network/lscpserver.h"
37    
38  namespace LinuxSampler {  namespace LinuxSampler {
39    
# Line 67  namespace LinuxSampler { Line 71  namespace LinuxSampler {
71      void SamplerChannel::SetEngineType(String EngineType) throw (Exception) {      void SamplerChannel::SetEngineType(String EngineType) throw (Exception) {
72          dmsg(2,("SamplerChannel: Assigning engine type..."));          dmsg(2,("SamplerChannel: Assigning engine type..."));
73    
74            if (pEngineChannel) {
75                if (!strcasecmp(pEngineChannel->EngineName().c_str(), EngineType.c_str())) {
76                    dmsg(2,("OK\n"));
77                    return;
78                }
79            }
80    
81            fireEngineToBeChanged();
82    
83          // create new engine channel          // create new engine channel
84          EngineChannel* pNewEngineChannel = EngineChannelFactory::Create(EngineType);          EngineChannel* pNewEngineChannel = EngineChannelFactory::Create(EngineType);
85          if (!pNewEngineChannel) throw Exception("Unknown engine type");          if (!pNewEngineChannel) throw Exception("Unknown engine type");
86    
87          //FIXME: hack to allow fast retrieval of engine channel's sampler channel index          pNewEngineChannel->SetSamplerChannel(this);
         pNewEngineChannel->iSamplerChannelIndex = Index();  
88    
89          // dereference midi input port.          // dereference midi input port.
90          MidiInputPort* pMidiInputPort = __GetMidiInputDevicePort(GetMidiInputPort());          MidiInputPort* pMidiInputPort = __GetMidiInputDevicePort(GetMidiInputPort());
91            midi_chan_t midiChannel = GetMidiInputChannel();
92          // disconnect old engine channel          // disconnect old engine channel
93          if (pEngineChannel) {          if (pEngineChannel) {
94              Engine* engine = pEngineChannel->GetEngine();              Engine* engine = pEngineChannel->GetEngine();
# Line 95  namespace LinuxSampler { Line 108  namespace LinuxSampler {
108              pNewEngineChannel->Connect(pAudioOutputDevice);              pNewEngineChannel->Connect(pAudioOutputDevice);
109              pAudioOutputDevice->Connect(pNewEngineChannel->GetEngine());              pAudioOutputDevice->Connect(pNewEngineChannel->GetEngine());
110          }          }
111          if (pMidiInputPort) pMidiInputPort->Connect(pNewEngineChannel, GetMidiInputChannel());          if (pMidiInputPort) pMidiInputPort->Connect(pNewEngineChannel, midiChannel);
112          pEngineChannel = pNewEngineChannel;          pEngineChannel = pNewEngineChannel;
113    
114          // from now on get MIDI device and port from EngineChannel object          // from now on get MIDI device and port from EngineChannel object
# Line 107  namespace LinuxSampler { Line 120  namespace LinuxSampler {
120          dmsg(2,("OK\n"));          dmsg(2,("OK\n"));
121      }      }
122    
123      void SamplerChannel::SetAudioOutputDevice(AudioOutputDevice* pDevice) {      void SamplerChannel::SetAudioOutputDevice(AudioOutputDevice* pDevice) throw (Exception) {
124          if(pAudioOutputDevice == pDevice) return;          if(pAudioOutputDevice == pDevice) return;
125    
126          // disconnect old device          // disconnect old device
127          if (pAudioOutputDevice && pEngineChannel) {          if (pAudioOutputDevice && pEngineChannel) {
128                if (!pAudioOutputDevice->isAutonomousDevice())
129                    throw Exception("The audio output device '" + pAudioOutputDevice->Driver() + "' cannot be dropped from this sampler channel!");
130    
131              Engine* engine = pEngineChannel->GetEngine();              Engine* engine = pEngineChannel->GetEngine();
132              pAudioOutputDevice->Disconnect(engine);              pAudioOutputDevice->Disconnect(engine);
133    
# Line 130  namespace LinuxSampler { Line 146  namespace LinuxSampler {
146          }          }
147      }      }
148    
149      void SamplerChannel::SetMidiInputDevice(MidiInputDevice* pDevice) {      void SamplerChannel::SetMidiInputDevice(MidiInputDevice* pDevice) throw (Exception) {
150         SetMidiInput(pDevice, 0, GetMidiInputChannel());         SetMidiInput(pDevice, 0, GetMidiInputChannel());
151      }      }
152    
153      void SamplerChannel::SetMidiInputPort(int MidiPort) {      void SamplerChannel::SetMidiInputPort(int MidiPort) throw (Exception) {
154         SetMidiInput(GetMidiInputDevice(), MidiPort, GetMidiInputChannel());         SetMidiInput(GetMidiInputDevice(), MidiPort, GetMidiInputChannel());
155      }      }
156    
# Line 142  namespace LinuxSampler { Line 158  namespace LinuxSampler {
158         SetMidiInput(GetMidiInputDevice(), GetMidiInputPort(), MidiChannel);         SetMidiInput(GetMidiInputDevice(), GetMidiInputPort(), MidiChannel);
159      }      }
160    
161      void SamplerChannel::SetMidiInput(MidiInputDevice* pDevice, int iMidiPort, midi_chan_t MidiChannel) {      void SamplerChannel::SetMidiInput(MidiInputDevice* pDevice, int iMidiPort, midi_chan_t MidiChannel) throw (Exception) {
162          if (!pDevice) throw Exception("No MIDI input device assigned.");          if (!pDevice) throw Exception("No MIDI input device assigned.");
163    
164          // get old and new midi input port          // get old and new midi input port
# Line 150  namespace LinuxSampler { Line 166  namespace LinuxSampler {
166          MidiInputPort* pNewMidiInputPort = pDevice->GetPort(iMidiPort);          MidiInputPort* pNewMidiInputPort = pDevice->GetPort(iMidiPort);
167    
168          // disconnect old device port          // disconnect old device port
169          if (pOldMidiInputPort && pEngineChannel) pOldMidiInputPort->Disconnect(pEngineChannel);          if (pOldMidiInputPort && pEngineChannel) {
170                MidiInputDevice* pOldDevice = pOldMidiInputPort->GetDevice();
171                if (pOldMidiInputPort != pNewMidiInputPort &&
172                    pOldDevice && !pOldDevice->isAutonomousDevice()
173                ) throw Exception("The MIDI input port '" + pOldDevice->Driver() + "' cannot be altered on this sampler channel!");
174    
175                pOldMidiInputPort->Disconnect(pEngineChannel);
176            }
177    
178          // remember new device, port and channel if not engine channel yet created          // remember new device, port and channel if not engine channel yet created
179          if (!pEngineChannel) {          if (!pEngineChannel) {
180              this->pMidiInputDevice = pDevice;              this->pMidiInputDevice = pDevice;
# Line 204  namespace LinuxSampler { Line 228  namespace LinuxSampler {
228          throw Exception("Internal error: SamplerChannel index not found");          throw Exception("Internal error: SamplerChannel index not found");
229      }      }
230    
231        Sampler* SamplerChannel::GetSampler() {
232            return pSampler;
233        }
234    
235      void SamplerChannel::AddEngineChangeListener(EngineChangeListener* l) {      void SamplerChannel::AddEngineChangeListener(EngineChangeListener* l) {
236          llEngineChangeListeners.AddListener(l);          llEngineChangeListeners.AddListener(l);
237      }      }
# Line 216  namespace LinuxSampler { Line 244  namespace LinuxSampler {
244         llEngineChangeListeners.RemoveAllListeners();         llEngineChangeListeners.RemoveAllListeners();
245      }      }
246    
247        void SamplerChannel::fireEngineToBeChanged() {
248            for (int i = 0; i < llEngineChangeListeners.GetListenerCount(); i++) {
249                llEngineChangeListeners.GetListener(i)->EngineToBeChanged(Index());
250            }
251        }
252    
253      void SamplerChannel::fireEngineChanged() {      void SamplerChannel::fireEngineChanged() {
254          for (int i = 0; i < llEngineChangeListeners.GetListenerCount(); i++) {          for (int i = 0; i < llEngineChangeListeners.GetListenerCount(); i++) {
255              llEngineChangeListeners.GetListener(i)->EngineChanged(Index());              llEngineChangeListeners.GetListener(i)->EngineChanged(Index());
# Line 237  namespace LinuxSampler { Line 271  namespace LinuxSampler {
271    
272      Sampler::Sampler() {      Sampler::Sampler() {
273          eventHandler.SetSampler(this);          eventHandler.SetSampler(this);
274            uiOldTotalVoiceCount = uiOldTotalStreamCount = 0;
275      }      }
276    
277      Sampler::~Sampler() {      Sampler::~Sampler() {
# Line 261  namespace LinuxSampler { Line 296  namespace LinuxSampler {
296          }          }
297      }      }
298    
299        void Sampler::fireChannelAdded(SamplerChannel* pChannel) {
300            for (int i = 0; i < llChannelCountListeners.GetListenerCount(); i++) {
301                llChannelCountListeners.GetListener(i)->ChannelAdded(pChannel);
302            }
303        }
304    
305        void Sampler::fireChannelToBeRemoved(SamplerChannel* pChannel) {
306            for (int i = 0; i < llChannelCountListeners.GetListenerCount(); i++) {
307                llChannelCountListeners.GetListener(i)->ChannelToBeRemoved(pChannel);
308            }
309        }
310    
311      void Sampler::AddAudioDeviceCountListener(AudioDeviceCountListener* l) {      void Sampler::AddAudioDeviceCountListener(AudioDeviceCountListener* l) {
312          llAudioDeviceCountListeners.AddListener(l);          llAudioDeviceCountListeners.AddListener(l);
313      }      }
# Line 289  namespace LinuxSampler { Line 336  namespace LinuxSampler {
336          }          }
337      }      }
338    
339        void Sampler::fireMidiDeviceToBeDestroyed(MidiInputDevice* pDevice) {
340            for (int i = 0; i < llMidiDeviceCountListeners.GetListenerCount(); i++) {
341                llMidiDeviceCountListeners.GetListener(i)->MidiDeviceToBeDestroyed(pDevice);
342            }
343        }
344    
345        void Sampler::fireMidiDeviceCreated(MidiInputDevice* pDevice) {
346            for (int i = 0; i < llMidiDeviceCountListeners.GetListenerCount(); i++) {
347                llMidiDeviceCountListeners.GetListener(i)->MidiDeviceCreated(pDevice);
348            }
349        }
350    
351      void Sampler::AddVoiceCountListener(VoiceCountListener* l) {      void Sampler::AddVoiceCountListener(VoiceCountListener* l) {
352          llVoiceCountListeners.AddListener(l);          llVoiceCountListeners.AddListener(l);
353      }      }
# Line 298  namespace LinuxSampler { Line 357  namespace LinuxSampler {
357      }      }
358    
359      void Sampler::fireVoiceCountChanged(int ChannelId, int NewCount) {      void Sampler::fireVoiceCountChanged(int ChannelId, int NewCount) {
360            std::map<uint, uint>::iterator it = mOldVoiceCounts.find(ChannelId);
361            if (it != mOldVoiceCounts.end()) {
362                uint oldCount = it->second;
363                if (NewCount == oldCount) return;
364            }
365    
366            mOldVoiceCounts[ChannelId] = NewCount;
367    
368          for (int i = 0; i < llVoiceCountListeners.GetListenerCount(); i++) {          for (int i = 0; i < llVoiceCountListeners.GetListenerCount(); i++) {
369              llVoiceCountListeners.GetListener(i)->VoiceCountChanged(ChannelId, NewCount);              llVoiceCountListeners.GetListener(i)->VoiceCountChanged(ChannelId, NewCount);
370          }          }
# Line 312  namespace LinuxSampler { Line 379  namespace LinuxSampler {
379      }      }
380    
381      void Sampler::fireStreamCountChanged(int ChannelId, int NewCount) {      void Sampler::fireStreamCountChanged(int ChannelId, int NewCount) {
382            std::map<uint, uint>::iterator it = mOldStreamCounts.find(ChannelId);
383            if (it != mOldStreamCounts.end()) {
384                uint oldCount = it->second;
385                if (NewCount == oldCount) return;
386            }
387    
388            mOldStreamCounts[ChannelId] = NewCount;
389    
390          for (int i = 0; i < llStreamCountListeners.GetListenerCount(); i++) {          for (int i = 0; i < llStreamCountListeners.GetListenerCount(); i++) {
391              llStreamCountListeners.GetListener(i)->StreamCountChanged(ChannelId, NewCount);              llStreamCountListeners.GetListener(i)->StreamCountChanged(ChannelId, NewCount);
392          }          }
# Line 331  namespace LinuxSampler { Line 406  namespace LinuxSampler {
406          }          }
407      }      }
408    
409        void Sampler::AddTotalStreamCountListener(TotalStreamCountListener* l) {
410            llTotalStreamCountListeners.AddListener(l);
411        }
412    
413        void Sampler::RemoveTotalStreamCountListener(TotalStreamCountListener* l) {
414            llTotalStreamCountListeners.RemoveListener(l);
415        }
416    
417        void Sampler::fireTotalStreamCountChanged(int NewCount) {
418            if (NewCount == uiOldTotalStreamCount) return;
419            uiOldTotalStreamCount = NewCount;
420    
421            for (int i = 0; i < llTotalStreamCountListeners.GetListenerCount(); i++) {
422                llTotalStreamCountListeners.GetListener(i)->TotalStreamCountChanged(NewCount);
423            }
424        }
425    
426      void Sampler::AddTotalVoiceCountListener(TotalVoiceCountListener* l) {      void Sampler::AddTotalVoiceCountListener(TotalVoiceCountListener* l) {
427          llTotalVoiceCountListeners.AddListener(l);          llTotalVoiceCountListeners.AddListener(l);
428      }      }
# Line 340  namespace LinuxSampler { Line 432  namespace LinuxSampler {
432      }      }
433    
434      void Sampler::fireTotalVoiceCountChanged(int NewCount) {      void Sampler::fireTotalVoiceCountChanged(int NewCount) {
435            if (NewCount == uiOldTotalVoiceCount) return;
436            uiOldTotalVoiceCount = NewCount;
437    
438          for (int i = 0; i < llTotalVoiceCountListeners.GetListenerCount(); i++) {          for (int i = 0; i < llTotalVoiceCountListeners.GetListenerCount(); i++) {
439              llTotalVoiceCountListeners.GetListener(i)->TotalVoiceCountChanged(NewCount);              llTotalVoiceCountListeners.GetListener(i)->TotalVoiceCountChanged(NewCount);
440          }          }
# Line 359  namespace LinuxSampler { Line 454  namespace LinuxSampler {
454          }          }
455      }      }
456    
457        void Sampler::EventHandler::EngineToBeChanged(int ChannelId) {
458            // nothing to do here
459        }
460    
461      void Sampler::EventHandler::EngineChanged(int ChannelId) {      void Sampler::EventHandler::EngineChanged(int ChannelId) {
462          EngineChannel* engineChannel = pSampler->GetSamplerChannel(ChannelId)->GetEngineChannel();          EngineChannel* engineChannel = pSampler->GetSamplerChannel(ChannelId)->GetEngineChannel();
463          if(engineChannel == NULL) return;          if(engineChannel == NULL) return;
# Line 375  namespace LinuxSampler { Line 474  namespace LinuxSampler {
474          if (!mSamplerChannels.size()) {          if (!mSamplerChannels.size()) {
475              SamplerChannel* pChannel = new SamplerChannel(this);              SamplerChannel* pChannel = new SamplerChannel(this);
476              mSamplerChannels[0] = pChannel;              mSamplerChannels[0] = pChannel;
477                fireChannelAdded(pChannel);
478              fireChannelCountChanged(1);              fireChannelCountChanged(1);
479              pChannel->AddEngineChangeListener(&eventHandler);              pChannel->AddEngineChangeListener(&eventHandler);
480              return pChannel;              return pChannel;
# Line 391  namespace LinuxSampler { Line 491  namespace LinuxSampler {
491                  // we found an unused index, so insert the new channel there                  // we found an unused index, so insert the new channel there
492                  SamplerChannel* pChannel = new SamplerChannel(this);                  SamplerChannel* pChannel = new SamplerChannel(this);
493                  mSamplerChannels[i] = pChannel;                  mSamplerChannels[i] = pChannel;
494                    fireChannelAdded(pChannel);
495                  fireChannelCountChanged(SamplerChannels());                  fireChannelCountChanged(SamplerChannels());
496                  pChannel->AddEngineChangeListener(&eventHandler);                  pChannel->AddEngineChangeListener(&eventHandler);
497                  return pChannel;                  return pChannel;
# Line 401  namespace LinuxSampler { Line 502  namespace LinuxSampler {
502          // we have not reached the index limit so we just add the channel past the highest index          // we have not reached the index limit so we just add the channel past the highest index
503          SamplerChannel* pChannel = new SamplerChannel(this);          SamplerChannel* pChannel = new SamplerChannel(this);
504          mSamplerChannels[lastIndex + 1] = pChannel;          mSamplerChannels[lastIndex + 1] = pChannel;
505            fireChannelAdded(pChannel);
506          fireChannelCountChanged(SamplerChannels());          fireChannelCountChanged(SamplerChannels());
507          pChannel->AddEngineChangeListener(&eventHandler);          pChannel->AddEngineChangeListener(&eventHandler);
508          return pChannel;          return pChannel;
# Line 418  namespace LinuxSampler { Line 520  namespace LinuxSampler {
520          SamplerChannelMap::iterator iterChan = mSamplerChannels.begin();          SamplerChannelMap::iterator iterChan = mSamplerChannels.begin();
521          for (; iterChan != mSamplerChannels.end(); iterChan++) {          for (; iterChan != mSamplerChannels.end(); iterChan++) {
522              if (iterChan->second == pSamplerChannel) {              if (iterChan->second == pSamplerChannel) {
523                    fireChannelToBeRemoved(pSamplerChannel);
524                    mOldVoiceCounts.erase(pSamplerChannel->Index());
525                    mOldStreamCounts.erase(pSamplerChannel->Index());
526                  pSamplerChannel->RemoveAllEngineChangeListeners();                  pSamplerChannel->RemoveAllEngineChangeListeners();
527                  mSamplerChannels.erase(iterChan);                  mSamplerChannels.erase(iterChan);
528                  delete pSamplerChannel;                  delete pSamplerChannel;
# Line 433  namespace LinuxSampler { Line 538  namespace LinuxSampler {
538          RemoveSamplerChannel(pChannel);          RemoveSamplerChannel(pChannel);
539      }      }
540    
541        void Sampler::RemoveAllSamplerChannels() {
542            /*
543             * In maps iterator invalidation occurs when the iterator point
544             * to the element that is being erased. So we need to copy the map
545             * by calling GetSamplerChannels() to prevent that.
546             */
547            SamplerChannelMap chns = GetSamplerChannels();
548            SamplerChannelMap::iterator iter = chns.begin();
549            for(; iter != chns.end(); iter++) {
550                RemoveSamplerChannel(iter->second);
551            }
552        }
553    
554      std::vector<String> Sampler::AvailableAudioOutputDrivers() {      std::vector<String> Sampler::AvailableAudioOutputDrivers() {
555          return AudioOutputDeviceFactory::AvailableDrivers();          return AudioOutputDeviceFactory::AvailableDrivers();
556      }      }
# Line 449  namespace LinuxSampler { Line 567  namespace LinuxSampler {
567          // create new device          // create new device
568          AudioOutputDevice* pDevice = AudioOutputDeviceFactory::Create(AudioDriver, Parameters);          AudioOutputDevice* pDevice = AudioOutputDeviceFactory::Create(AudioDriver, Parameters);
569    
         // add new audio device to the audio device list  
         for (uint i = 0; ; i++) { // seek for a free place starting from the beginning  
             if (!mAudioOutputDevices[i]) {  
                 mAudioOutputDevices[i] = pDevice;  
                 break;  
             }  
         }  
   
570          fireAudioDeviceCountChanged(AudioOutputDevices());          fireAudioDeviceCountChanged(AudioOutputDevices());
571          return pDevice;          return pDevice;
572      }      }
573    
574      uint Sampler::AudioOutputDevices() {      uint Sampler::AudioOutputDevices() {
575          return mAudioOutputDevices.size();          return AudioOutputDeviceFactory::Devices().size();
576      }      }
577    
578      uint Sampler::MidiInputDevices() {      uint Sampler::MidiInputDevices() {
579          return mMidiInputDevices.size();          return MidiInputDeviceFactory::Devices().size();
580      }      }
581    
582      std::map<uint, AudioOutputDevice*> Sampler::GetAudioOutputDevices() {      std::map<uint, AudioOutputDevice*> Sampler::GetAudioOutputDevices() {
583          return mAudioOutputDevices;          return AudioOutputDeviceFactory::Devices();
584      }      }
585    
586      std::map<uint, MidiInputDevice*> Sampler::GetMidiInputDevices() {      std::map<uint, MidiInputDevice*> Sampler::GetMidiInputDevices() {
587          return mMidiInputDevices;          return MidiInputDeviceFactory::Devices();
588      }      }
589    
590      void Sampler::DestroyAudioOutputDevice(AudioOutputDevice* pDevice) throw (Exception) {      void Sampler::DestroyAudioOutputDevice(AudioOutputDevice* pDevice) throw (Exception) {
591          AudioOutputDeviceMap::iterator iter = mAudioOutputDevices.begin();          if (pDevice) {
592          for (; iter != mAudioOutputDevices.end(); iter++) {              // check if there are still sampler engines connected to this device
593              if (iter->second == pDevice) {              for (SamplerChannelMap::iterator iterChan = mSamplerChannels.begin();
594                  // check if there are still sampler engines connected to this device                   iterChan != mSamplerChannels.end(); iterChan++
595                  for (uint i = 0; i < SamplerChannels(); i++)              ) if (iterChan->second->GetAudioOutputDevice() == pDevice) throw Exception("Sampler channel " + ToString(iterChan->first) + " is still connected to the audio output device.");
596                      if (GetSamplerChannel(i)->GetAudioOutputDevice() == pDevice) throw Exception("Sampler channel " + ToString(i) + " is still connected to the audio output device.");  
597                //TODO: should we add fireAudioDeviceToBeDestroyed() here ?
598                  // disable device              AudioOutputDeviceFactory::Destroy(pDevice);
599                  pDevice->Stop();              fireAudioDeviceCountChanged(AudioOutputDevices());
600            }
601        }
602    
603                  // remove device from the device list      void Sampler::DestroyAllAudioOutputDevices() throw (Exception) {
604                  mAudioOutputDevices.erase(iter);          /*
605             * In maps iterator invalidation occurs when the iterator point
606             * to the element that is being erased. So we need to copy the map
607             * by calling GetAudioOutputDevices() to prevent that.
608             */
609            std::map<uint, AudioOutputDevice*> devs = GetAudioOutputDevices();
610            std::map<uint, AudioOutputDevice*>::iterator iter = devs.begin();
611            for (; iter != devs.end(); iter++) {
612                AudioOutputDevice* pDevice = iter->second;
613    
614                  // destroy and free device from memory              // skip non-autonomous devices
615                  delete pDevice;              if (!pDevice->isAutonomousDevice()) continue;
616    
617                  fireAudioDeviceCountChanged(AudioOutputDevices());              DestroyAudioOutputDevice(pDevice);
                 break;  
             }  
618          }          }
619      }      }
620    
621      void Sampler::DestroyMidiInputDevice(MidiInputDevice* pDevice) throw (Exception) {      void Sampler::DestroyMidiInputDevice(MidiInputDevice* pDevice) throw (Exception) {
622          MidiInputDeviceMap::iterator iter = mMidiInputDevices.begin();          if (pDevice) {
623          for (; iter != mMidiInputDevices.end(); iter++) {              // check if there are still sampler engines connected to this device
624              if (iter->second == pDevice) {              for (SamplerChannelMap::iterator iterChan = mSamplerChannels.begin();
625                  // check if there are still sampler engines connected to this device                   iterChan != mSamplerChannels.end(); iterChan++
626                  for (uint i = 0; i < SamplerChannels(); i++)              ) if (iterChan->second->GetMidiInputDevice() == pDevice) throw Exception("Sampler channel " + ToString(iterChan->first) + " is still connected to the midi input device.");
627                      if (GetSamplerChannel(i)->GetMidiInputDevice() == pDevice) throw Exception("Sampler channel " + ToString(i) + " is still connected to the midi input device.");  
628                fireMidiDeviceToBeDestroyed(pDevice);
629                  // disable device              MidiInputDeviceFactory::Destroy(pDevice);
630                  pDevice->StopListen();              fireMidiDeviceCountChanged(MidiInputDevices());
631            }
632        }
633    
634                  // remove device from the device list      void Sampler::DestroyAllMidiInputDevices() throw (Exception) {
635                  mMidiInputDevices.erase(iter);          /*
636             * In maps iterator invalidation occurs when the iterator point
637             * to the element that is being erased. So we need to copy the map
638             * by calling GetMidiInputDevices() to prevent that.
639             */
640            std::map<uint, MidiInputDevice*> devs = GetMidiInputDevices();
641            std::map<uint, MidiInputDevice*>::iterator iter = devs.begin();
642            for (; iter != devs.end(); iter++) {
643                MidiInputDevice* pDevice = iter->second;
644    
645                  // destroy and free device from memory              // skip non-autonomous devices
646                  delete pDevice;              if (!pDevice->isAutonomousDevice()) continue;
647    
648                  fireMidiDeviceCountChanged(MidiInputDevices());              DestroyMidiInputDevice(pDevice);
                 break;  
             }  
649          }          }
650      }      }
651    
# Line 527  namespace LinuxSampler { Line 653  namespace LinuxSampler {
653          // create new device          // create new device
654          MidiInputDevice* pDevice = MidiInputDeviceFactory::Create(MidiDriver, Parameters, this);          MidiInputDevice* pDevice = MidiInputDeviceFactory::Create(MidiDriver, Parameters, this);
655    
656          // add new device to the midi device list          fireMidiDeviceCreated(pDevice);
         for (uint i = 0; ; i++) { // seek for a free place starting from the beginning  
                 if (!mMidiInputDevices[i]) {  
                         mMidiInputDevices[i] = pDevice;  
                         break;  
                 }  
         }  
   
657          fireMidiDeviceCountChanged(MidiInputDevices());          fireMidiDeviceCountChanged(MidiInputDevices());
658          return pDevice;          return pDevice;
659      }      }
660    
661        int Sampler::GetDiskStreamCount() {
662            int count = 0;
663            std::set<Engine*>::iterator it = EngineFactory::EngineInstances().begin();
664    
665            for(; it != EngineFactory::EngineInstances().end(); it++) {
666                count += (*it)->DiskStreamCount();
667            }
668    
669            return count;
670        }
671    
672      int Sampler::GetVoiceCount() {      int Sampler::GetVoiceCount() {
673          int count = 0;          int count = 0;
674          std::set<Engine*>::iterator it = EngineFactory::EngineInstances().begin();          std::set<Engine*>::iterator it = EngineFactory::EngineInstances().begin();
# Line 553  namespace LinuxSampler { Line 683  namespace LinuxSampler {
683      void Sampler::Reset() {      void Sampler::Reset() {
684          // delete sampler channels          // delete sampler channels
685          try {          try {
686              while (true) {              RemoveAllSamplerChannels();
                     SamplerChannelMap::iterator iter = mSamplerChannels.begin();  
                     if (iter == mSamplerChannels.end()) break;  
                     RemoveSamplerChannel(iter->second);  
             }  
687          }          }
688          catch(...) {          catch(...) {
689              std::cerr << "Sampler::Reset(): Exception occured while trying to delete all sampler channels, exiting.\n" << std::flush;              std::cerr << "Sampler::Reset(): Exception occured while trying to delete all sampler channels, exiting.\n" << std::flush;
# Line 566  namespace LinuxSampler { Line 692  namespace LinuxSampler {
692    
693          // delete midi input devices          // delete midi input devices
694          try {          try {
695              while (true) {              DestroyAllMidiInputDevices();
                     MidiInputDeviceMap::iterator iter = mMidiInputDevices.begin();  
                     if (iter == mMidiInputDevices.end()) break;  
                     DestroyMidiInputDevice(iter->second);  
             }  
696          }          }
697          catch(...) {          catch(...) {
698              std::cerr << "Sampler::Reset(): Exception occured while trying to delete all MIDI input devices, exiting.\n" << std::flush;              std::cerr << "Sampler::Reset(): Exception occured while trying to delete all MIDI input devices, exiting.\n" << std::flush;
# Line 579  namespace LinuxSampler { Line 701  namespace LinuxSampler {
701    
702          // delete audio output devices          // delete audio output devices
703          try {          try {
704              while (true) {              DestroyAllAudioOutputDevices();
                     AudioOutputDeviceMap::iterator iter = mAudioOutputDevices.begin();  
                     if (iter == mAudioOutputDevices.end()) break;  
                     DestroyAudioOutputDevice(iter->second);  
             }  
705          }          }
706          catch(...) {          catch(...) {
707              std::cerr << "Sampler::Reset(): Exception occured while trying to delete all audio output devices, exiting.\n" << std::flush;              std::cerr << "Sampler::Reset(): Exception occured while trying to delete all audio output devices, exiting.\n" << std::flush;
# Line 598  namespace LinuxSampler { Line 716  namespace LinuxSampler {
716              std::cerr << "Sampler::Reset(): Exception occured while trying to delete all MIDI instrument maps, exiting.\n" << std::flush;              std::cerr << "Sampler::Reset(): Exception occured while trying to delete all MIDI instrument maps, exiting.\n" << std::flush;
717              exit(EXIT_FAILURE);              exit(EXIT_FAILURE);
718          }          }
719    
720            // unload all instrument editor DLLs
721            InstrumentEditorFactory::ClosePlugins();
722        }
723    
724        bool Sampler::EnableDenormalsAreZeroMode() {
725            Features::detect();
726            return Features::enableDenormalsAreZeroMode();
727        }
728    
729        void Sampler::fireStatistics() {
730            static const LSCPEvent::event_t eventsArr[] = {
731                LSCPEvent::event_voice_count, LSCPEvent::event_stream_count,
732                LSCPEvent::event_buffer_fill, LSCPEvent::event_total_voice_count
733            };
734            static const std::list<LSCPEvent::event_t> events(eventsArr, eventsArr + 4);
735    
736            if (LSCPServer::EventSubscribers(events))
737            {
738                LSCPServer::LockRTNotify();
739                std::map<uint,SamplerChannel*> channels = GetSamplerChannels();
740                std::map<uint,SamplerChannel*>::iterator iter = channels.begin();
741                for (; iter != channels.end(); iter++) {
742                    SamplerChannel* pSamplerChannel = iter->second;
743                    EngineChannel* pEngineChannel = pSamplerChannel->GetEngineChannel();
744                    if (!pEngineChannel) continue;
745                    Engine* pEngine = pEngineChannel->GetEngine();
746                    if (!pEngine) continue;
747                    fireVoiceCountChanged(iter->first, pEngineChannel->GetVoiceCount());
748                    fireStreamCountChanged(iter->first, pEngineChannel->GetDiskStreamCount());
749                    fireBufferFillChanged(iter->first, pEngine->DiskStreamBufferFillPercentage());
750                }
751    
752                fireTotalStreamCountChanged(GetDiskStreamCount());
753                fireTotalVoiceCountChanged(GetVoiceCount());
754    
755                LSCPServer::UnlockRTNotify();
756            }
757      }      }
758    
759    #if defined(WIN32)
760        static HINSTANCE dllInstance = NULL;
761    
762        String Sampler::GetInstallDir() {
763            char buf[MAX_PATH + 1];
764            if (GetModuleFileName(dllInstance, buf, MAX_PATH)) {
765                String s(buf);
766                size_t n = s.rfind('\\');
767                if (n != String::npos) {
768                    return s.substr(0, n);
769                }
770            }
771            return "";
772        }
773    #endif
774  } // namespace LinuxSampler  } // namespace LinuxSampler
775    
776    #if defined(WIN32)
777    extern "C" {
778        BOOL WINAPI DllMain(HINSTANCE instance, DWORD reason, LPVOID reserved)
779        {
780            switch (reason) {
781            case DLL_PROCESS_ATTACH:
782                LinuxSampler::dllInstance = instance;
783                break;
784            }
785            return TRUE;
786        }
787    }
788    #endif
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