/[svn]/linuxsampler/trunk/src/Sampler.cpp
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revision 1723 by schoenebeck, Sun Apr 20 08:53:39 2008 UTC revision 1835 by iliev, Mon Feb 16 17:56:50 2009 UTC
# Line 33  Line 33 
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"  #include "common/Features.h"
36    #include "network/lscpserver.h"
37    
38  namespace LinuxSampler {  namespace LinuxSampler {
39    
# Line 83  namespace LinuxSampler { Line 84  namespace LinuxSampler {
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());
# Line 216  namespace LinuxSampler { Line 216  namespace LinuxSampler {
216          throw Exception("Internal error: SamplerChannel index not found");          throw Exception("Internal error: SamplerChannel index not found");
217      }      }
218    
219        Sampler* SamplerChannel::GetSampler() {
220            return pSampler;
221        }
222    
223      void SamplerChannel::AddEngineChangeListener(EngineChangeListener* l) {      void SamplerChannel::AddEngineChangeListener(EngineChangeListener* l) {
224          llEngineChangeListeners.AddListener(l);          llEngineChangeListeners.AddListener(l);
225      }      }
# Line 255  namespace LinuxSampler { Line 259  namespace LinuxSampler {
259    
260      Sampler::Sampler() {      Sampler::Sampler() {
261          eventHandler.SetSampler(this);          eventHandler.SetSampler(this);
262            uiOldTotalVoiceCount = uiOldTotalStreamCount = 0;
263      }      }
264    
265      Sampler::~Sampler() {      Sampler::~Sampler() {
# Line 340  namespace LinuxSampler { Line 345  namespace LinuxSampler {
345      }      }
346    
347      void Sampler::fireVoiceCountChanged(int ChannelId, int NewCount) {      void Sampler::fireVoiceCountChanged(int ChannelId, int NewCount) {
348            std::map<uint, uint>::iterator it = mOldVoiceCounts.find(ChannelId);
349            if (it != mOldVoiceCounts.end()) {
350                uint oldCount = it->second;
351                if (NewCount == oldCount) return;
352            }
353    
354            mOldVoiceCounts[ChannelId] = NewCount;
355    
356          for (int i = 0; i < llVoiceCountListeners.GetListenerCount(); i++) {          for (int i = 0; i < llVoiceCountListeners.GetListenerCount(); i++) {
357              llVoiceCountListeners.GetListener(i)->VoiceCountChanged(ChannelId, NewCount);              llVoiceCountListeners.GetListener(i)->VoiceCountChanged(ChannelId, NewCount);
358          }          }
# Line 354  namespace LinuxSampler { Line 367  namespace LinuxSampler {
367      }      }
368    
369      void Sampler::fireStreamCountChanged(int ChannelId, int NewCount) {      void Sampler::fireStreamCountChanged(int ChannelId, int NewCount) {
370            std::map<uint, uint>::iterator it = mOldStreamCounts.find(ChannelId);
371            if (it != mOldStreamCounts.end()) {
372                uint oldCount = it->second;
373                if (NewCount == oldCount) return;
374            }
375    
376            mOldStreamCounts[ChannelId] = NewCount;
377    
378          for (int i = 0; i < llStreamCountListeners.GetListenerCount(); i++) {          for (int i = 0; i < llStreamCountListeners.GetListenerCount(); i++) {
379              llStreamCountListeners.GetListener(i)->StreamCountChanged(ChannelId, NewCount);              llStreamCountListeners.GetListener(i)->StreamCountChanged(ChannelId, NewCount);
380          }          }
# Line 382  namespace LinuxSampler { Line 403  namespace LinuxSampler {
403      }      }
404    
405      void Sampler::fireTotalStreamCountChanged(int NewCount) {      void Sampler::fireTotalStreamCountChanged(int NewCount) {
406            if (NewCount == uiOldTotalStreamCount) return;
407            uiOldTotalStreamCount = NewCount;
408    
409          for (int i = 0; i < llTotalStreamCountListeners.GetListenerCount(); i++) {          for (int i = 0; i < llTotalStreamCountListeners.GetListenerCount(); i++) {
410              llTotalStreamCountListeners.GetListener(i)->TotalStreamCountChanged(NewCount);              llTotalStreamCountListeners.GetListener(i)->TotalStreamCountChanged(NewCount);
411          }          }
# Line 396  namespace LinuxSampler { Line 420  namespace LinuxSampler {
420      }      }
421    
422      void Sampler::fireTotalVoiceCountChanged(int NewCount) {      void Sampler::fireTotalVoiceCountChanged(int NewCount) {
423            if (NewCount == uiOldTotalVoiceCount) return;
424            uiOldTotalVoiceCount = NewCount;
425    
426          for (int i = 0; i < llTotalVoiceCountListeners.GetListenerCount(); i++) {          for (int i = 0; i < llTotalVoiceCountListeners.GetListenerCount(); i++) {
427              llTotalVoiceCountListeners.GetListener(i)->TotalVoiceCountChanged(NewCount);              llTotalVoiceCountListeners.GetListener(i)->TotalVoiceCountChanged(NewCount);
428          }          }
# Line 482  namespace LinuxSampler { Line 509  namespace LinuxSampler {
509          for (; iterChan != mSamplerChannels.end(); iterChan++) {          for (; iterChan != mSamplerChannels.end(); iterChan++) {
510              if (iterChan->second == pSamplerChannel) {              if (iterChan->second == pSamplerChannel) {
511                  fireChannelToBeRemoved(pSamplerChannel);                  fireChannelToBeRemoved(pSamplerChannel);
512                    mOldVoiceCounts.erase(pSamplerChannel->Index());
513                    mOldStreamCounts.erase(pSamplerChannel->Index());
514                  pSamplerChannel->RemoveAllEngineChangeListeners();                  pSamplerChannel->RemoveAllEngineChangeListeners();
515                  mSamplerChannels.erase(iterChan);                  mSamplerChannels.erase(iterChan);
516                  delete pSamplerChannel;                  delete pSamplerChannel;
# Line 497  namespace LinuxSampler { Line 526  namespace LinuxSampler {
526          RemoveSamplerChannel(pChannel);          RemoveSamplerChannel(pChannel);
527      }      }
528    
529        void Sampler::RemoveAllSamplerChannels() {
530            /*
531             * In maps iterator invalidation occurs when the iterator point
532             * to the element that is being erased. So we need to copy the map
533             * by calling GetSamplerChannels() to prevent that.
534             */
535            SamplerChannelMap chns = GetSamplerChannels();
536            SamplerChannelMap::iterator iter = chns.begin();
537            for(; iter != chns.end(); iter++) {
538                RemoveSamplerChannel(iter->second);
539            }
540        }
541    
542      std::vector<String> Sampler::AvailableAudioOutputDrivers() {      std::vector<String> Sampler::AvailableAudioOutputDrivers() {
543          return AudioOutputDeviceFactory::AvailableDrivers();          return AudioOutputDeviceFactory::AvailableDrivers();
544      }      }
# Line 546  namespace LinuxSampler { Line 588  namespace LinuxSampler {
588          for (; iter != mAudioOutputDevices.end(); iter++) {          for (; iter != mAudioOutputDevices.end(); iter++) {
589              if (iter->second == pDevice) {              if (iter->second == pDevice) {
590                  // check if there are still sampler engines connected to this device                  // check if there are still sampler engines connected to this device
591                  for (uint i = 0; i < SamplerChannels(); i++)                  for (SamplerChannelMap::iterator iterChan = mSamplerChannels.begin();
592                      if (GetSamplerChannel(i)->GetAudioOutputDevice() == pDevice) throw Exception("Sampler channel " + ToString(i) + " is still connected to the audio output device.");                       iterChan != mSamplerChannels.end(); iterChan++)
593                        if (iterChan->second->GetAudioOutputDevice() == pDevice) throw Exception("Sampler channel " + ToString(iterChan->first) + " is still connected to the audio output device.");
594    
595                  // disable device                  // disable device
596                  pDevice->Stop();                  pDevice->Stop();
# Line 564  namespace LinuxSampler { Line 607  namespace LinuxSampler {
607          }          }
608      }      }
609    
610        void Sampler::DestroyAllAudioOutputDevices() throw (Exception) {
611            /*
612             * In maps iterator invalidation occurs when the iterator point
613             * to the element that is being erased. So we need to copy the map
614             * by calling GetAudioOutputDevices() to prevent that.
615             */
616            AudioOutputDeviceMap devs = GetAudioOutputDevices();
617            AudioOutputDeviceMap::iterator iter = devs.begin();
618            for(; iter != devs.end(); iter++) {
619                DestroyAudioOutputDevice(iter->second);
620            }
621        }
622    
623      void Sampler::DestroyMidiInputDevice(MidiInputDevice* pDevice) throw (Exception) {      void Sampler::DestroyMidiInputDevice(MidiInputDevice* pDevice) throw (Exception) {
624          MidiInputDeviceMap::iterator iter = mMidiInputDevices.begin();          MidiInputDeviceMap::iterator iter = mMidiInputDevices.begin();
625          for (; iter != mMidiInputDevices.end(); iter++) {          for (; iter != mMidiInputDevices.end(); iter++) {
626              if (iter->second == pDevice) {              if (iter->second == pDevice) {
627                  // check if there are still sampler engines connected to this device                  // check if there are still sampler engines connected to this device
628                  for (uint i = 0; i < SamplerChannels(); i++)                  for (SamplerChannelMap::iterator iterChan = mSamplerChannels.begin();
629                      if (GetSamplerChannel(i)->GetMidiInputDevice() == pDevice) throw Exception("Sampler channel " + ToString(i) + " is still connected to the midi input device.");                       iterChan != mSamplerChannels.end(); iterChan++)
630                        if (iterChan->second->GetMidiInputDevice() == pDevice) throw Exception("Sampler channel " + ToString(iterChan->first) + " is still connected to the midi input device.");
631    
632                  fireMidiDeviceToBeDestroyed(pDevice);                  fireMidiDeviceToBeDestroyed(pDevice);
633    
# Line 589  namespace LinuxSampler { Line 646  namespace LinuxSampler {
646          }          }
647      }      }
648    
649        void Sampler::DestroyAllMidiInputDevices() throw (Exception) {
650            /*
651             * In maps iterator invalidation occurs when the iterator point
652             * to the element that is being erased. So we need to copy the map
653             * by calling GetMidiInputDevices() to prevent that.
654             */
655            MidiInputDeviceMap devs = GetMidiInputDevices();
656            MidiInputDeviceMap::iterator iter = devs.begin();
657            for(; iter != devs.end(); iter++) {
658                DestroyMidiInputDevice(iter->second);
659            }
660        }
661    
662      MidiInputDevice* Sampler::CreateMidiInputDevice(String MidiDriver, std::map<String,String> Parameters) throw (Exception) {      MidiInputDevice* Sampler::CreateMidiInputDevice(String MidiDriver, std::map<String,String> Parameters) throw (Exception) {
663          // create new device          // create new device
664          MidiInputDevice* pDevice = MidiInputDeviceFactory::Create(MidiDriver, Parameters, this);          MidiInputDevice* pDevice = MidiInputDeviceFactory::Create(MidiDriver, Parameters, this);
# Line 631  namespace LinuxSampler { Line 701  namespace LinuxSampler {
701      void Sampler::Reset() {      void Sampler::Reset() {
702          // delete sampler channels          // delete sampler channels
703          try {          try {
704              while (true) {              RemoveAllSamplerChannels();
                     SamplerChannelMap::iterator iter = mSamplerChannels.begin();  
                     if (iter == mSamplerChannels.end()) break;  
                     RemoveSamplerChannel(iter->second);  
             }  
705          }          }
706          catch(...) {          catch(...) {
707              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 644  namespace LinuxSampler { Line 710  namespace LinuxSampler {
710    
711          // delete midi input devices          // delete midi input devices
712          try {          try {
713              while (true) {              DestroyAllMidiInputDevices();
                     MidiInputDeviceMap::iterator iter = mMidiInputDevices.begin();  
                     if (iter == mMidiInputDevices.end()) break;  
                     DestroyMidiInputDevice(iter->second);  
             }  
714          }          }
715          catch(...) {          catch(...) {
716              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 657  namespace LinuxSampler { Line 719  namespace LinuxSampler {
719    
720          // delete audio output devices          // delete audio output devices
721          try {          try {
722              while (true) {              DestroyAllAudioOutputDevices();
                     AudioOutputDeviceMap::iterator iter = mAudioOutputDevices.begin();  
                     if (iter == mAudioOutputDevices.end()) break;  
                     DestroyAudioOutputDevice(iter->second);  
             }  
723          }          }
724          catch(...) {          catch(...) {
725              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 686  namespace LinuxSampler { Line 744  namespace LinuxSampler {
744          return Features::enableDenormalsAreZeroMode();          return Features::enableDenormalsAreZeroMode();
745      }      }
746    
747        void Sampler::fireStatistics() {
748            static const LSCPEvent::event_t eventsArr[] = {
749                LSCPEvent::event_voice_count, LSCPEvent::event_stream_count,
750                LSCPEvent::event_buffer_fill, LSCPEvent::event_total_voice_count
751            };
752            static const std::list<LSCPEvent::event_t> events(eventsArr, eventsArr + 4);
753    
754            if (LSCPServer::EventSubscribers(events))
755            {
756                LSCPServer::LockRTNotify();
757                std::map<uint,SamplerChannel*> channels = GetSamplerChannels();
758                std::map<uint,SamplerChannel*>::iterator iter = channels.begin();
759                for (; iter != channels.end(); iter++) {
760                    SamplerChannel* pSamplerChannel = iter->second;
761                    EngineChannel* pEngineChannel = pSamplerChannel->GetEngineChannel();
762                    if (!pEngineChannel) continue;
763                    Engine* pEngine = pEngineChannel->GetEngine();
764                    if (!pEngine) continue;
765                    fireVoiceCountChanged(iter->first, pEngineChannel->GetVoiceCount());
766                    fireStreamCountChanged(iter->first, pEngineChannel->GetDiskStreamCount());
767                    fireBufferFillChanged(iter->first, pEngine->DiskStreamBufferFillPercentage());
768                }
769                
770                fireTotalStreamCountChanged(GetDiskStreamCount());
771                fireTotalVoiceCountChanged(GetVoiceCount());
772    
773                LSCPServer::UnlockRTNotify();
774            }
775        }
776    
777  } // namespace LinuxSampler  } // namespace LinuxSampler
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