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

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

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-revision 778 by iliev,
Fri Sep 23 06:58:26 2005 UTC
+revision 1695 by schoenebeck,
Sat Feb 16 01:09:33 2008 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 - 2008 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 "network/lscpserver.h"
+ #include "drivers/midi/MidiInstrumentMapper.h"
  namespace LinuxSampler {
-Line 48 
 namespace LinuxSampler {
+Line 50 
 namespace LinuxSampler {
      SamplerChannel::~SamplerChannel() {
          if (pEngineChannel) {
+             Engine* engine = pEngineChannel->GetEngine();
+             if (pAudioOutputDevice) pAudioOutputDevice->Disconnect(engine);
              MidiInputPort* pMidiInputPort = (pEngineChannel) ? pEngineChannel->GetMidiInputPort() : __GetMidiInputDevicePort(GetMidiInputChannel());
              if (pMidiInputPort) pMidiInputPort->Disconnect(pEngineChannel);
              if (pEngineChannel) {
                  if (pAudioOutputDevice) pEngineChannel->DisconnectAudioOutputDevice();
                  EngineChannelFactory::Destroy(pEngineChannel);
+                 // reconnect engine if it still exists
+                 const std::set<Engine*>& engines = EngineFactory::EngineInstances();
+                 if (engines.find(engine) != engines.end()) pAudioOutputDevice->Connect(engine);
              }
          }
      }
-     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->iSamplerChannelIndex = Index();
-Line 71 
 namespace LinuxSampler {
+Line 89 
 namespace LinuxSampler {
          MidiInputPort* pMidiInputPort = __GetMidiInputDevicePort(GetMidiInputPort());
          // disconnect old engine channel
          if (pEngineChannel) {
+             Engine* engine = pEngineChannel->GetEngine();
+             if (pAudioOutputDevice) pAudioOutputDevice->Disconnect(engine);
              if (pMidiInputPort) pMidiInputPort->Disconnect(pEngineChannel);
              if (pAudioOutputDevice) pEngineChannel->DisconnectAudioOutputDevice();
              EngineChannelFactory::Destroy(pEngineChannel);
+             // reconnect engine if it still exists
+             const std::set<Engine*>& engines = EngineFactory::EngineInstances();
+             if (engines.find(engine) != engines.end()) pAudioOutputDevice->Connect(engine);
          }
          // connect new engine channel
-         if (pMidiInputPort) pMidiInputPort->Connect(pNewEngineChannel, GetMidiInputChannel());
          if (pAudioOutputDevice) {
              pNewEngineChannel->Connect(pAudioOutputDevice);
              pAudioOutputDevice->Connect(pNewEngineChannel->GetEngine());
          }
+         if (pMidiInputPort) pMidiInputPort->Connect(pNewEngineChannel, GetMidiInputChannel());
          pEngineChannel = pNewEngineChannel;
          // from now on get MIDI device and port from EngineChannel object
-Line 89 
 namespace LinuxSampler {
+Line 114 
 namespace LinuxSampler {
          this->iMidiPort        = 0;
          pEngineChannel->StatusChanged(true);
+         fireEngineChanged();
          dmsg(2,("OK\n"));
      }
      void SamplerChannel::SetAudioOutputDevice(AudioOutputDevice* pDevice) {
+         if(pAudioOutputDevice == pDevice) return;
          // disconnect old device
-         if (pAudioOutputDevice && pEngineChannel) pEngineChannel->DisconnectAudioOutputDevice();
+         if (pAudioOutputDevice && pEngineChannel) {
+             Engine* engine = pEngineChannel->GetEngine();
+             pAudioOutputDevice->Disconnect(engine);
+             pEngineChannel->DisconnectAudioOutputDevice();
+             // reconnect engine if it still exists
+             const std::set<Engine*>& engines = EngineFactory::EngineInstances();
+             if (engines.find(engine) != engines.end()) pAudioOutputDevice->Connect(engine);
+         }
          // connect new device
          pAudioOutputDevice = pDevice;
          if (pEngineChannel) {
-Line 117 
 namespace LinuxSampler {
+Line 154 
 namespace LinuxSampler {
      }
      void SamplerChannel::SetMidiInput(MidiInputDevice* pDevice, int iMidiPort, midi_chan_t MidiChannel) {
-         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());
-Line 136 
 namespace LinuxSampler {
+Line 173 
 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 175 
 namespace LinuxSampler {
+Line 212 
 namespace LinuxSampler {
              }
          }
-         throw LinuxSamplerException("Internal error: SamplerChannel index not found");
+         throw Exception("Internal error: SamplerChannel index not found");
+     }
+     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 192 
 namespace LinuxSampler {
+Line 253 
 namespace LinuxSampler {
      // * Sampler
      Sampler::Sampler() {
+         eventHandler.SetSampler(this);
      }
      Sampler::~Sampler() {
-Line 202 
 namespace LinuxSampler {
+Line 264 
 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) {
+         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) {
+         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) {
+         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) {
+         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 222 
 namespace LinuxSampler {
+Line 451 
 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 247 
 namespace LinuxSampler {
+Line 480 
 namespace LinuxSampler {
          SamplerChannelMap::iterator iterChan = mSamplerChannels.begin();
          for (; iterChan != mSamplerChannels.end(); iterChan++) {
              if (iterChan->second == pSamplerChannel) {
+                 fireChannelToBeRemoved(pSamplerChannel);
+                 pSamplerChannel->RemoveAllEngineChangeListeners();
                  mSamplerChannels.erase(iterChan);
                  delete pSamplerChannel;
-                 LSCPServer::SendLSCPNotify(LSCPEvent(LSCPEvent::event_channel_count, mSamplerChannels.size()));
+                 fireChannelCountChanged(SamplerChannels());
                  return;
              }
          }
-Line 265 
 namespace LinuxSampler {
+Line 500 
 namespace LinuxSampler {
          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);
-Line 277 
 namespace LinuxSampler {
+Line 520 
 namespace LinuxSampler {
              }
          }
+         fireAudioDeviceCountChanged(AudioOutputDevices());
          return pDevice;
      }
-Line 296 
 namespace LinuxSampler {
+Line 540 
 namespace LinuxSampler {
          return mMidiInputDevices;
      }
-     void Sampler::DestroyAudioOutputDevice(AudioOutputDevice* pDevice) throw (LinuxSamplerException) {
+     void Sampler::DestroyAudioOutputDevice(AudioOutputDevice* pDevice) throw (Exception) {
          AudioOutputDeviceMap::iterator iter = mAudioOutputDevices.begin();
          for (; iter != mAudioOutputDevices.end(); iter++) {
              if (iter->second == pDevice) {
                  // check if there are still sampler engines connected to this device
                  for (uint i = 0; i < SamplerChannels(); i++)
-                     if (GetSamplerChannel(i)->GetAudioOutputDevice() == pDevice) throw LinuxSamplerException("Sampler channel " + ToString(i) + " is still connected to the audio output device.");
+                     if (GetSamplerChannel(i)->GetAudioOutputDevice() == pDevice) throw Exception("Sampler channel " + ToString(i) + " is still connected to the audio output device.");
                  // disable device
                  pDevice->Stop();
-Line 312 
 namespace LinuxSampler {
+Line 556 
 namespace LinuxSampler {
                  // destroy and free device from memory
                  delete pDevice;
+                 fireAudioDeviceCountChanged(AudioOutputDevices());
+                 break;
              }
          }
      }
-     void Sampler::DestroyMidiInputDevice(MidiInputDevice* pDevice) throw (LinuxSamplerException) {
+     void Sampler::DestroyMidiInputDevice(MidiInputDevice* pDevice) throw (Exception) {
          MidiInputDeviceMap::iterator iter = mMidiInputDevices.begin();
          for (; iter != mMidiInputDevices.end(); iter++) {
              if (iter->second == pDevice) {
                  // check if there are still sampler engines connected to this device
                  for (uint i = 0; i < SamplerChannels(); i++)
-                     if (GetSamplerChannel(i)->GetMidiInputDevice() == pDevice) throw LinuxSamplerException("Sampler channel " + ToString(i) + " is still connected to the midi input device.");
+                     if (GetSamplerChannel(i)->GetMidiInputDevice() == pDevice) throw Exception("Sampler channel " + ToString(i) + " is still connected to the midi input device.");
+                 fireMidiDeviceToBeDestroyed(pDevice);
                  // disable device
                  pDevice->StopListen();
-Line 332 
 namespace LinuxSampler {
+Line 581 
 namespace LinuxSampler {
                  // destroy and free device from memory
                  delete pDevice;
+                 fireMidiDeviceCountChanged(MidiInputDevices());
+                 break;
              }
          }
      }
-     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);
-Line 348 
 namespace LinuxSampler {
+Line 600 
 namespace LinuxSampler {
                  }
          }
+         fireMidiDeviceCreated(pDevice);
+         fireMidiDeviceCountChanged(MidiInputDevices());
          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 401 
 namespace LinuxSampler {
+Line 666 
 namespace LinuxSampler {
              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();
      }
  } // namespace LinuxSampler

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Removed from v.778
 


changed lines


 
Added in v.1695
 Legend:



Removed from v.778
 


changed lines


 
Added in v.1695
-Removed from v.778
+Added in v.1695

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