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

Diff of /linuxsampler/trunk/src/Sampler.cpp

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-revision 846 by persson,
Sun Mar 19 16:38:22 2006 UTC
+revision 2427 by persson,
Sat Mar  2 07:03:04 2013 UTC
 Line 3
   *   LinuxSampler - modular, streaming capable sampler                     *
   *                                                                         *
   *   Copyright (C) 2003, 2004 by Benno Senoner and Christian Schoenebeck   *
-  *   Copyright (C) 2005 Christian Schoenebeck                              *
+  *   Copyright (C) 2005 - 2013 Christian Schoenebeck                       *
   *                                                                         *
-  *   This program is free software; you can redistribute it and/or modify  *
+  *   This library 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,       *
+  *   This library 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; if not, write to the Free Software           *
+  *   along with this library; if not, write to the Free Software           *
   *   Foundation, Inc., 59 Temple Place, Suite 330, Boston,                 *
   *   MA  02111-1307  USA                                                   *
   ***************************************************************************/
 Line 25
  #include "Sampler.h"
+ #include "common/global_private.h"
  #include "engines/EngineFactory.h"
  #include "engines/EngineChannelFactory.h"
+ #include "plugins/InstrumentEditorFactory.h"
  #include "drivers/audio/AudioOutputDeviceFactory.h"
  #include "drivers/midi/MidiInputDeviceFactory.h"
+ #include "drivers/midi/MidiInstrumentMapper.h"
+ #include "common/Features.h"
  #include "network/lscpserver.h"
  namespace LinuxSampler {
-Line 64 
 namespace LinuxSampler {
+Line 68 
 namespace LinuxSampler {
          }
      }
-     void SamplerChannel::SetEngineType(String EngineType) throw (LinuxSamplerException) {
+     void SamplerChannel::SetEngineType(String EngineType) throw (Exception) {
          dmsg(2,("SamplerChannel: Assigning engine type..."));
+         if (pEngineChannel) {
+             if (!strcasecmp(pEngineChannel->EngineName().c_str(), EngineType.c_str())) {
+                 dmsg(2,("OK\n"));
+                 return;
+             }
+         }
+         fireEngineToBeChanged();
          // create new engine channel
          EngineChannel* pNewEngineChannel = EngineChannelFactory::Create(EngineType);
-         if (!pNewEngineChannel) throw LinuxSamplerException("Unknown engine type");
+         if (!pNewEngineChannel) throw Exception("Unknown engine type");
-         //FIXME: hack to allow fast retrieval of engine channel's sampler channel index
+         pNewEngineChannel->SetSamplerChannel(this);
-         pNewEngineChannel->iSamplerChannelIndex = Index();
          // dereference midi input port.
          MidiInputPort* pMidiInputPort = __GetMidiInputDevicePort(GetMidiInputPort());
+         midi_chan_t midiChannel = GetMidiInputChannel();
          // disconnect old engine channel
          if (pEngineChannel) {
              Engine* engine = pEngineChannel->GetEngine();
-Line 95 
 namespace LinuxSampler {
+Line 108 
 namespace LinuxSampler {
              pNewEngineChannel->Connect(pAudioOutputDevice);
              pAudioOutputDevice->Connect(pNewEngineChannel->GetEngine());
          }
-         if (pMidiInputPort) pMidiInputPort->Connect(pNewEngineChannel, GetMidiInputChannel());
+         if (pMidiInputPort) pMidiInputPort->Connect(pNewEngineChannel, midiChannel);
          pEngineChannel = pNewEngineChannel;
          // from now on get MIDI device and port from EngineChannel object
-Line 103 
 namespace LinuxSampler {
+Line 116 
 namespace LinuxSampler {
          this->iMidiPort        = 0;
          pEngineChannel->StatusChanged(true);
+         fireEngineChanged();
          dmsg(2,("OK\n"));
      }
-     void SamplerChannel::SetAudioOutputDevice(AudioOutputDevice* pDevice) {
+     void SamplerChannel::SetAudioOutputDevice(AudioOutputDevice* pDevice) throw (Exception) {
+         if(pAudioOutputDevice == pDevice) return;
          // disconnect old device
          if (pAudioOutputDevice && pEngineChannel) {
+             if (!pAudioOutputDevice->isAutonomousDevice())
+                 throw Exception("The audio output device '" + pAudioOutputDevice->Driver() + "' cannot be dropped from this sampler channel!");
              Engine* engine = pEngineChannel->GetEngine();
              pAudioOutputDevice->Disconnect(engine);
-Line 128 
 namespace LinuxSampler {
+Line 146 
 namespace LinuxSampler {
          }
      }
-     void SamplerChannel::SetMidiInputDevice(MidiInputDevice* pDevice) {
+     void SamplerChannel::SetMidiInputDevice(MidiInputDevice* pDevice) throw (Exception) {
         SetMidiInput(pDevice, 0, GetMidiInputChannel());
      }
-     void SamplerChannel::SetMidiInputPort(int MidiPort) {
+     void SamplerChannel::SetMidiInputPort(int MidiPort) throw (Exception) {
         SetMidiInput(GetMidiInputDevice(), MidiPort, GetMidiInputChannel());
      }
-Line 140 
 namespace LinuxSampler {
+Line 158 
 namespace LinuxSampler {
         SetMidiInput(GetMidiInputDevice(), GetMidiInputPort(), MidiChannel);
      }
-     void SamplerChannel::SetMidiInput(MidiInputDevice* pDevice, int iMidiPort, midi_chan_t MidiChannel) {
+     void SamplerChannel::SetMidiInput(MidiInputDevice* pDevice, int iMidiPort, midi_chan_t MidiChannel) throw (Exception) {
-         if (!pDevice) throw LinuxSamplerException("No MIDI input device assigned.");
+         if (!pDevice) throw Exception("No MIDI input device assigned.");
          // get old and new midi input port
          MidiInputPort* pOldMidiInputPort = __GetMidiInputDevicePort(GetMidiInputPort());
          MidiInputPort* pNewMidiInputPort = pDevice->GetPort(iMidiPort);
          // disconnect old device port
-         if (pOldMidiInputPort && pEngineChannel) pOldMidiInputPort->Disconnect(pEngineChannel);
+         if (pOldMidiInputPort && pEngineChannel) {
+             MidiInputDevice* pOldDevice = pOldMidiInputPort->GetDevice();
+             if (pOldMidiInputPort != pNewMidiInputPort &&
+                 pOldDevice && !pOldDevice->isAutonomousDevice()
+             ) throw Exception("The MIDI input port '" + pOldDevice->Driver() + "' cannot be altered on this sampler channel!");
+             pOldMidiInputPort->Disconnect(pEngineChannel);
+         }
          // remember new device, port and channel if not engine channel yet created
          if (!pEngineChannel) {
              this->pMidiInputDevice = pDevice;
-Line 160 
 namespace LinuxSampler {
+Line 186 
 namespace LinuxSampler {
          if (pNewMidiInputPort && pEngineChannel) pNewMidiInputPort->Connect(pEngineChannel, MidiChannel);
          // Ooops.
          if (pNewMidiInputPort == NULL)
-             throw LinuxSamplerException("There is no MIDI input port with index " + ToString(iMidiPort) + ".");
+             throw Exception("There is no MIDI input port with index " + ToString(iMidiPort) + ".");
      }
      EngineChannel* SamplerChannel::GetEngineChannel() {
-Line 199 
 namespace LinuxSampler {
+Line 225 
 namespace LinuxSampler {
              }
          }
-         throw LinuxSamplerException("Internal error: SamplerChannel index not found");
+         throw Exception("Internal error: SamplerChannel index not found");
+     }
+     Sampler* SamplerChannel::GetSampler() {
+         return pSampler;
+     }
+     void SamplerChannel::AddEngineChangeListener(EngineChangeListener* l) {
+         llEngineChangeListeners.AddListener(l);
+     }
+     void SamplerChannel::RemoveEngineChangeListener(EngineChangeListener* l) {
+        llEngineChangeListeners.RemoveListener(l);
+     }
+     void SamplerChannel::RemoveAllEngineChangeListeners() {
+        llEngineChangeListeners.RemoveAllListeners();
+     }
+     void SamplerChannel::fireEngineToBeChanged() {
+         for (int i = 0; i < llEngineChangeListeners.GetListenerCount(); i++) {
+             llEngineChangeListeners.GetListener(i)->EngineToBeChanged(Index());
+         }
+     }
+     void SamplerChannel::fireEngineChanged() {
+         for (int i = 0; i < llEngineChangeListeners.GetListenerCount(); i++) {
+             llEngineChangeListeners.GetListener(i)->EngineChanged(Index());
+         }
      }
      MidiInputPort* SamplerChannel::__GetMidiInputDevicePort(int iMidiPort) {
-Line 216 
 namespace LinuxSampler {
+Line 270 
 namespace LinuxSampler {
      // * Sampler
      Sampler::Sampler() {
+         eventHandler.SetSampler(this);
+         uiOldTotalVoiceCount = uiOldTotalStreamCount = 0;
      }
      Sampler::~Sampler() {
-Line 226 
 namespace LinuxSampler {
+Line 282 
 namespace LinuxSampler {
          return mSamplerChannels.size();
      }
+     void Sampler::AddChannelCountListener(ChannelCountListener* l) {
+         llChannelCountListeners.AddListener(l);
+     }
+     void Sampler::RemoveChannelCountListener(ChannelCountListener* l) {
+        llChannelCountListeners.RemoveListener(l);
+     }
+     void Sampler::fireChannelCountChanged(int NewCount) {
+         for (int i = 0; i < llChannelCountListeners.GetListenerCount(); i++) {
+             llChannelCountListeners.GetListener(i)->ChannelCountChanged(NewCount);
+         }
+     }
+     void Sampler::fireChannelAdded(SamplerChannel* pChannel) {
+         for (int i = 0; i < llChannelCountListeners.GetListenerCount(); i++) {
+             llChannelCountListeners.GetListener(i)->ChannelAdded(pChannel);
+         }
+     }
+     void Sampler::fireChannelToBeRemoved(SamplerChannel* pChannel) {
+         for (int i = 0; i < llChannelCountListeners.GetListenerCount(); i++) {
+             llChannelCountListeners.GetListener(i)->ChannelToBeRemoved(pChannel);
+         }
+     }
+     void Sampler::AddAudioDeviceCountListener(AudioDeviceCountListener* l) {
+         llAudioDeviceCountListeners.AddListener(l);
+     }
+     void Sampler::RemoveAudioDeviceCountListener(AudioDeviceCountListener* l) {
+         llAudioDeviceCountListeners.RemoveListener(l);
+     }
+     void Sampler::fireAudioDeviceCountChanged(int NewCount) {
+         for (int i = 0; i < llAudioDeviceCountListeners.GetListenerCount(); i++) {
+             llAudioDeviceCountListeners.GetListener(i)->AudioDeviceCountChanged(NewCount);
+         }
+     }
+     void Sampler::AddMidiDeviceCountListener(MidiDeviceCountListener* l) {
+         llMidiDeviceCountListeners.AddListener(l);
+     }
+     void Sampler::RemoveMidiDeviceCountListener(MidiDeviceCountListener* l) {
+         llMidiDeviceCountListeners.RemoveListener(l);
+     }
+     void Sampler::fireMidiDeviceCountChanged(int NewCount) {
+         for (int i = 0; i < llMidiDeviceCountListeners.GetListenerCount(); i++) {
+             llMidiDeviceCountListeners.GetListener(i)->MidiDeviceCountChanged(NewCount);
+         }
+     }
+     void Sampler::fireMidiDeviceToBeDestroyed(MidiInputDevice* pDevice) {
+         for (int i = 0; i < llMidiDeviceCountListeners.GetListenerCount(); i++) {
+             llMidiDeviceCountListeners.GetListener(i)->MidiDeviceToBeDestroyed(pDevice);
+         }
+     }
+     void Sampler::fireMidiDeviceCreated(MidiInputDevice* pDevice) {
+         for (int i = 0; i < llMidiDeviceCountListeners.GetListenerCount(); i++) {
+             llMidiDeviceCountListeners.GetListener(i)->MidiDeviceCreated(pDevice);
+         }
+     }
+     void Sampler::AddVoiceCountListener(VoiceCountListener* l) {
+         llVoiceCountListeners.AddListener(l);
+     }
+     void Sampler::RemoveVoiceCountListener(VoiceCountListener* l) {
+         llVoiceCountListeners.RemoveListener(l);
+     }
+     void Sampler::fireVoiceCountChanged(int ChannelId, int NewCount) {
+         std::map<uint, uint>::iterator it = mOldVoiceCounts.find(ChannelId);
+         if (it != mOldVoiceCounts.end()) {
+             uint oldCount = it->second;
+             if (NewCount == oldCount) return;
+         }
+         mOldVoiceCounts[ChannelId] = NewCount;
+         for (int i = 0; i < llVoiceCountListeners.GetListenerCount(); i++) {
+             llVoiceCountListeners.GetListener(i)->VoiceCountChanged(ChannelId, NewCount);
+         }
+     }
+     void Sampler::AddStreamCountListener(StreamCountListener* l) {
+         llStreamCountListeners.AddListener(l);
+     }
+     void Sampler::RemoveStreamCountListener(StreamCountListener* l) {
+         llStreamCountListeners.RemoveListener(l);
+     }
+     void Sampler::fireStreamCountChanged(int ChannelId, int NewCount) {
+         std::map<uint, uint>::iterator it = mOldStreamCounts.find(ChannelId);
+         if (it != mOldStreamCounts.end()) {
+             uint oldCount = it->second;
+             if (NewCount == oldCount) return;
+         }
+         mOldStreamCounts[ChannelId] = NewCount;
+         for (int i = 0; i < llStreamCountListeners.GetListenerCount(); i++) {
+             llStreamCountListeners.GetListener(i)->StreamCountChanged(ChannelId, NewCount);
+         }
+     }
+     void Sampler::AddBufferFillListener(BufferFillListener* l) {
+         llBufferFillListeners.AddListener(l);
+     }
+     void Sampler::RemoveBufferFillListener(BufferFillListener* l) {
+         llBufferFillListeners.RemoveListener(l);
+     }
+     void Sampler::fireBufferFillChanged(int ChannelId, String FillData) {
+         for (int i = 0; i < llBufferFillListeners.GetListenerCount(); i++) {
+             llBufferFillListeners.GetListener(i)->BufferFillChanged(ChannelId, FillData);
+         }
+     }
+     void Sampler::AddTotalStreamCountListener(TotalStreamCountListener* l) {
+         llTotalStreamCountListeners.AddListener(l);
+     }
+     void Sampler::RemoveTotalStreamCountListener(TotalStreamCountListener* l) {
+         llTotalStreamCountListeners.RemoveListener(l);
+     }
+     void Sampler::fireTotalStreamCountChanged(int NewCount) {
+         if (NewCount == uiOldTotalStreamCount) return;
+         uiOldTotalStreamCount = NewCount;
+         for (int i = 0; i < llTotalStreamCountListeners.GetListenerCount(); i++) {
+             llTotalStreamCountListeners.GetListener(i)->TotalStreamCountChanged(NewCount);
+         }
+     }
+     void Sampler::AddTotalVoiceCountListener(TotalVoiceCountListener* l) {
+         llTotalVoiceCountListeners.AddListener(l);
+     }
+     void Sampler::RemoveTotalVoiceCountListener(TotalVoiceCountListener* l) {
+         llTotalVoiceCountListeners.RemoveListener(l);
+     }
+     void Sampler::fireTotalVoiceCountChanged(int NewCount) {
+         if (NewCount == uiOldTotalVoiceCount) return;
+         uiOldTotalVoiceCount = NewCount;
+         for (int i = 0; i < llTotalVoiceCountListeners.GetListenerCount(); i++) {
+             llTotalVoiceCountListeners.GetListener(i)->TotalVoiceCountChanged(NewCount);
+         }
+     }
+     void Sampler::AddFxSendCountListener(FxSendCountListener* l) {
+         llFxSendCountListeners.AddListener(l);
+     }
+     void Sampler::RemoveFxSendCountListener(FxSendCountListener* l) {
+         llFxSendCountListeners.RemoveListener(l);
+     }
+     void Sampler::fireFxSendCountChanged(int ChannelId, int NewCount) {
+         for (int i = 0; i < llFxSendCountListeners.GetListenerCount(); i++) {
+             llFxSendCountListeners.GetListener(i)->FxSendCountChanged(ChannelId, NewCount);
+         }
+     }
+     void Sampler::EventHandler::EngineToBeChanged(int ChannelId) {
+         // nothing to do here
+     }
+     void Sampler::EventHandler::EngineChanged(int ChannelId) {
+         EngineChannel* engineChannel = pSampler->GetSamplerChannel(ChannelId)->GetEngineChannel();
+         if(engineChannel == NULL) return;
+         engineChannel->AddFxSendCountListener(this);
+     }
+     void Sampler::EventHandler::FxSendCountChanged(int ChannelId, int NewCount) {
+         pSampler->fireFxSendCountChanged(ChannelId, NewCount);
+     }
      SamplerChannel* Sampler::AddSamplerChannel() {
          // if there's no sampler channel yet
          if (!mSamplerChannels.size()) {
              SamplerChannel* pChannel = new SamplerChannel(this);
              mSamplerChannels[0] = pChannel;
-             LSCPServer::SendLSCPNotify(LSCPEvent(LSCPEvent::event_channel_count, 1));
+             fireChannelAdded(pChannel);
+             fireChannelCountChanged(1);
+             pChannel->AddEngineChangeListener(&eventHandler);
              return pChannel;
          }
-Line 246 
 namespace LinuxSampler {
+Line 491 
 namespace LinuxSampler {
                  // we found an unused index, so insert the new channel there
                  SamplerChannel* pChannel = new SamplerChannel(this);
                  mSamplerChannels[i] = pChannel;
-                 LSCPServer::SendLSCPNotify(LSCPEvent(LSCPEvent::event_channel_count, i));
+                 fireChannelAdded(pChannel);
+                 fireChannelCountChanged(SamplerChannels());
+                 pChannel->AddEngineChangeListener(&eventHandler);
                  return pChannel;
              }
-             throw LinuxSamplerException("Internal error: could not find unoccupied sampler channel index.");
+             throw Exception("Internal error: could not find unoccupied sampler channel index.");
          }
          // we have not reached the index limit so we just add the channel past the highest index
          SamplerChannel* pChannel = new SamplerChannel(this);
          mSamplerChannels[lastIndex + 1] = pChannel;
-         LSCPServer::SendLSCPNotify(LSCPEvent(LSCPEvent::event_channel_count, lastIndex + 1));
+         fireChannelAdded(pChannel);
+         fireChannelCountChanged(SamplerChannels());
+         pChannel->AddEngineChangeListener(&eventHandler);
          return pChannel;
      }
-Line 271 
 namespace LinuxSampler {
+Line 520 
 namespace LinuxSampler {
          SamplerChannelMap::iterator iterChan = mSamplerChannels.begin();
          for (; iterChan != mSamplerChannels.end(); iterChan++) {
              if (iterChan->second == pSamplerChannel) {
+                 fireChannelToBeRemoved(pSamplerChannel);
+                 mOldVoiceCounts.erase(pSamplerChannel->Index());
+                 mOldStreamCounts.erase(pSamplerChannel->Index());
+                 pSamplerChannel->RemoveAllEngineChangeListeners();
                  mSamplerChannels.erase(iterChan);
                  delete pSamplerChannel;
-                 LSCPServer::SendLSCPNotify(LSCPEvent(LSCPEvent::event_channel_count, mSamplerChannels.size()));
+                 fireChannelCountChanged(SamplerChannels());
                  return;
              }
          }
-Line 285 
 namespace LinuxSampler {
+Line 538 
 namespace LinuxSampler {
          RemoveSamplerChannel(pChannel);
      }
+     void Sampler::RemoveAllSamplerChannels() {
+         /*
+          * In maps iterator invalidation occurs when the iterator point
+          * to the element that is being erased. So we need to copy the map
+          * by calling GetSamplerChannels() to prevent that.
+          */
+         SamplerChannelMap chns = GetSamplerChannels();
+         SamplerChannelMap::iterator iter = chns.begin();
+         for(; iter != chns.end(); iter++) {
+             RemoveSamplerChannel(iter->second);
+         }
+     }
      std::vector<String> Sampler::AvailableAudioOutputDrivers() {
          return AudioOutputDeviceFactory::AvailableDrivers();
      }
-     AudioOutputDevice* Sampler::CreateAudioOutputDevice(String AudioDriver, std::map<String,String> Parameters) throw (LinuxSamplerException) {
+     std::vector<String> Sampler::AvailableMidiInputDrivers() {
+         return MidiInputDeviceFactory::AvailableDrivers();
+     }
+     std::vector<String> Sampler::AvailableEngineTypes() {
+         return EngineFactory::AvailableEngineTypes();
+     }
+     AudioOutputDevice* Sampler::CreateAudioOutputDevice(String AudioDriver, std::map<String,String> Parameters) throw (Exception) {
          // create new device
          AudioOutputDevice* pDevice = AudioOutputDeviceFactory::Create(AudioDriver, Parameters);
-         // add new audio device to the audio device list
+         fireAudioDeviceCountChanged(AudioOutputDevices());
-         for (uint i = 0; ; i++) { // seek for a free place starting from the beginning
-             if (!mAudioOutputDevices[i]) {
-                 mAudioOutputDevices[i] = pDevice;
-                 break;
-             }
-         }
          return pDevice;
      }
      uint Sampler::AudioOutputDevices() {
-         return mAudioOutputDevices.size();
+         return AudioOutputDeviceFactory::Devices().size();
      }
      uint Sampler::MidiInputDevices() {
-         return mMidiInputDevices.size();
+         return MidiInputDeviceFactory::Devices().size();
      }
      std::map<uint, AudioOutputDevice*> Sampler::GetAudioOutputDevices() {
-         return mAudioOutputDevices;
+         return AudioOutputDeviceFactory::Devices();
      }
      std::map<uint, MidiInputDevice*> Sampler::GetMidiInputDevices() {
-         return mMidiInputDevices;
+         return MidiInputDeviceFactory::Devices();
      }
-     void Sampler::DestroyAudioOutputDevice(AudioOutputDevice* pDevice) throw (LinuxSamplerException) {
+     void Sampler::DestroyAudioOutputDevice(AudioOutputDevice* pDevice) throw (Exception) {
-         AudioOutputDeviceMap::iterator iter = mAudioOutputDevices.begin();
+         if (pDevice) {
-         for (; iter != mAudioOutputDevices.end(); iter++) {
+             // check if there are still sampler engines connected to this device
-             if (iter->second == pDevice) {
+             for (SamplerChannelMap::iterator iterChan = mSamplerChannels.begin();
-                 // check if there are still sampler engines connected to this device
+                  iterChan != mSamplerChannels.end(); iterChan++
-                 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.");
-                     if (GetSamplerChannel(i)->GetAudioOutputDevice() == pDevice) throw LinuxSamplerException("Sampler channel " + ToString(i) + " is still connected to the audio output device.");
-                 // disable device
+             //TODO: should we add fireAudioDeviceToBeDestroyed() here ?
-                 pDevice->Stop();
+             AudioOutputDeviceFactory::Destroy(pDevice);
+             fireAudioDeviceCountChanged(AudioOutputDevices());
+         }
+     }
-                 // remove device from the device list
+     void Sampler::DestroyAllAudioOutputDevices() throw (Exception) {
-                 mAudioOutputDevices.erase(iter);
+         /*
+          * In maps iterator invalidation occurs when the iterator point
+          * to the element that is being erased. So we need to copy the map
+          * by calling GetAudioOutputDevices() to prevent that.
+          */
+         std::map<uint, AudioOutputDevice*> devs = GetAudioOutputDevices();
+         std::map<uint, AudioOutputDevice*>::iterator iter = devs.begin();
+         for (; iter != devs.end(); iter++) {
+             AudioOutputDevice* pDevice = iter->second;
-                 // destroy and free device from memory
+             // skip non-autonomous devices
-                 delete pDevice;
+             if (!pDevice->isAutonomousDevice()) continue;
-                 break;
+             DestroyAudioOutputDevice(pDevice);
-             }
          }
      }
-     void Sampler::DestroyMidiInputDevice(MidiInputDevice* pDevice) throw (LinuxSamplerException) {
+     void Sampler::DestroyMidiInputDevice(MidiInputDevice* pDevice) throw (Exception) {
-         MidiInputDeviceMap::iterator iter = mMidiInputDevices.begin();
+         if (pDevice) {
-         for (; iter != mMidiInputDevices.end(); iter++) {
+             // check if there are still sampler engines connected to this device
-             if (iter->second == pDevice) {
+             for (SamplerChannelMap::iterator iterChan = mSamplerChannels.begin();
-                 // check if there are still sampler engines connected to this device
+                  iterChan != mSamplerChannels.end(); iterChan++
-                 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.");
-                     if (GetSamplerChannel(i)->GetMidiInputDevice() == pDevice) throw LinuxSamplerException("Sampler channel " + ToString(i) + " is still connected to the midi input device.");
-                 // disable device
-                 pDevice->StopListen();
-                 // remove device from the device list
+             fireMidiDeviceToBeDestroyed(pDevice);
-                 mMidiInputDevices.erase(iter);
+             MidiInputDeviceFactory::Destroy(pDevice);
+             fireMidiDeviceCountChanged(MidiInputDevices());
+         }
+     }
-                 // destroy and free device from memory
+     void Sampler::DestroyAllMidiInputDevices() throw (Exception) {
-                 delete pDevice;
+         /*
+          * In maps iterator invalidation occurs when the iterator point
+          * to the element that is being erased. So we need to copy the map
+          * by calling GetMidiInputDevices() to prevent that.
+          */
+         std::map<uint, MidiInputDevice*> devs = GetMidiInputDevices();
+         std::map<uint, MidiInputDevice*>::iterator iter = devs.begin();
+         for (; iter != devs.end(); iter++) {
+             MidiInputDevice* pDevice = iter->second;
-                 break;
+             // skip non-autonomous devices
-             }
+             if (!pDevice->isAutonomousDevice()) continue;
+             DestroyMidiInputDevice(pDevice);
          }
      }
-     MidiInputDevice* Sampler::CreateMidiInputDevice(String MidiDriver, std::map<String,String> Parameters) throw (LinuxSamplerException) {
+     MidiInputDevice* Sampler::CreateMidiInputDevice(String MidiDriver, std::map<String,String> Parameters) throw (Exception) {
          // create new device
          MidiInputDevice* pDevice = MidiInputDeviceFactory::Create(MidiDriver, Parameters, this);
-         // add new device to the midi device list
+         fireMidiDeviceCreated(pDevice);
-         for (uint i = 0; ; i++) { // seek for a free place starting from the beginning
+         fireMidiDeviceCountChanged(MidiInputDevices());
-                 if (!mMidiInputDevices[i]) {
-                         mMidiInputDevices[i] = pDevice;
-                         break;
-                 }
-         }
          return pDevice;
      }
+     int Sampler::GetDiskStreamCount() {
+         int count = 0;
+         std::set<Engine*>::iterator it = EngineFactory::EngineInstances().begin();
+         for(; it != EngineFactory::EngineInstances().end(); it++) {
+             count += (*it)->DiskStreamCount();
+         }
+         return count;
+     }
      int Sampler::GetVoiceCount() {
          int count = 0;
          std::set<Engine*>::iterator it = EngineFactory::EngineInstances().begin();
-Line 390 
 namespace LinuxSampler {
+Line 680 
 namespace LinuxSampler {
          return count;
      }
+     int Sampler::GetGlobalMaxVoices() {
+         return GLOBAL_MAX_VOICES; // see common/global_private.cpp
+     }
+     int Sampler::GetGlobalMaxStreams() {
+         return GLOBAL_MAX_STREAMS; // see common/global_private.cpp
+     }
+     void Sampler::SetGlobalMaxVoices(int n) throw (Exception) {
+         if (n < 1) throw Exception("Maximum voices may not be less than 1");
+         GLOBAL_MAX_VOICES = n; // see common/global_private.cpp
+         const std::set<Engine*>& engines = EngineFactory::EngineInstances();
+         if (engines.size() > 0) {
+             std::set<Engine*>::iterator iter = engines.begin();
+             std::set<Engine*>::iterator end  = engines.end();
+             for (; iter != end; ++iter) {
+                 (*iter)->SetMaxVoices(n);
+             }
+         }
+     }
+     void Sampler::SetGlobalMaxStreams(int n) throw (Exception) {
+         if (n < 0) throw Exception("Maximum disk streams may not be negative");
+         GLOBAL_MAX_STREAMS = n; // see common/global_private.cpp
+         const std::set<Engine*>& engines = EngineFactory::EngineInstances();
+         if (engines.size() > 0) {
+             std::set<Engine*>::iterator iter = engines.begin();
+             std::set<Engine*>::iterator end  = engines.end();
+             for (; iter != end; ++iter) {
+                 (*iter)->SetMaxDiskStreams(n);
+             }
+         }
+     }
      void Sampler::Reset() {
          // delete sampler channels
          try {
-             while (true) {
+             RemoveAllSamplerChannels();
-                     SamplerChannelMap::iterator iter = mSamplerChannels.begin();
-                     if (iter == mSamplerChannels.end()) break;
-                     RemoveSamplerChannel(iter->second);
-             }
          }
          catch(...) {
              std::cerr << "Sampler::Reset(): Exception occured while trying to delete all sampler channels, exiting.\n" << std::flush;
-Line 406 
 namespace LinuxSampler {
+Line 726 
 namespace LinuxSampler {
          // delete midi input devices
          try {
-             while (true) {
+             DestroyAllMidiInputDevices();
-                     MidiInputDeviceMap::iterator iter = mMidiInputDevices.begin();
-                     if (iter == mMidiInputDevices.end()) break;
-                     DestroyMidiInputDevice(iter->second);
-             }
          }
          catch(...) {
              std::cerr << "Sampler::Reset(): Exception occured while trying to delete all MIDI input devices, exiting.\n" << std::flush;
-Line 419 
 namespace LinuxSampler {
+Line 735 
 namespace LinuxSampler {
          // delete audio output devices
          try {
-             while (true) {
+             DestroyAllAudioOutputDevices();
-                     AudioOutputDeviceMap::iterator iter = mAudioOutputDevices.begin();
-                     if (iter == mAudioOutputDevices.end()) break;
-                     DestroyAudioOutputDevice(iter->second);
-             }
          }
          catch(...) {
              std::cerr << "Sampler::Reset(): Exception occured while trying to delete all audio output devices, exiting.\n" << std::flush;
              exit(EXIT_FAILURE);
          }
+         // delete MIDI instrument maps
+         try {
+             MidiInstrumentMapper::RemoveAllMaps();
+         }
+         catch(...) {
+             std::cerr << "Sampler::Reset(): Exception occured while trying to delete all MIDI instrument maps, exiting.\n" << std::flush;
+             exit(EXIT_FAILURE);
+         }
+         // unload all instrument editor DLLs
+         InstrumentEditorFactory::ClosePlugins();
+     }
+     bool Sampler::EnableDenormalsAreZeroMode() {
+         Features::detect();
+         return Features::enableDenormalsAreZeroMode();
+     }
+     void Sampler::fireStatistics() {
+         static const LSCPEvent::event_t eventsArr[] = {
+             LSCPEvent::event_voice_count, LSCPEvent::event_stream_count,
+             LSCPEvent::event_buffer_fill, LSCPEvent::event_total_voice_count
+         };
+         static const std::list<LSCPEvent::event_t> events(eventsArr, eventsArr + 4);
+         if (LSCPServer::EventSubscribers(events))
+         {
+             LockGuard lock(LSCPServer::RTNotifyMutex);
+             std::map<uint,SamplerChannel*> channels = GetSamplerChannels();
+             std::map<uint,SamplerChannel*>::iterator iter = channels.begin();
+             for (; iter != channels.end(); iter++) {
+                 SamplerChannel* pSamplerChannel = iter->second;
+                 EngineChannel* pEngineChannel = pSamplerChannel->GetEngineChannel();
+                 if (!pEngineChannel) continue;
+                 Engine* pEngine = pEngineChannel->GetEngine();
+                 if (!pEngine) continue;
+                 fireVoiceCountChanged(iter->first, pEngineChannel->GetVoiceCount());
+                 fireStreamCountChanged(iter->first, pEngineChannel->GetDiskStreamCount());
+                 fireBufferFillChanged(iter->first, pEngine->DiskStreamBufferFillPercentage());
+             }
+             fireTotalStreamCountChanged(GetDiskStreamCount());
+             fireTotalVoiceCountChanged(GetVoiceCount());
+         }
      }
+ #if defined(WIN32)
+     static HINSTANCE dllInstance = NULL;
+     String Sampler::GetInstallDir() {
+         char buf[MAX_PATH + 1];
+         if (GetModuleFileName(dllInstance, buf, MAX_PATH)) {
+             String s(buf);
+             size_t n = s.rfind('\\');
+             if (n != String::npos) {
+                 return s.substr(0, n);
+             }
+         }
+         return "";
+     }
+ #endif
  } // namespace LinuxSampler
+ #if defined(WIN32)
+ extern "C" {
+     BOOL WINAPI DllMain(HINSTANCE instance, DWORD reason, LPVOID reserved)
+     {
+         switch (reason) {
+         case DLL_PROCESS_ATTACH:
+             LinuxSampler::dllInstance = instance;
+             break;
+         }
+         return TRUE;
+     }
+ }
+ #endif

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+Added in v.2427

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