/[svn]/linuxsampler/trunk/src/Sampler.cpp
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revision 846 by persson, Sun Mar 19 16:38:22 2006 UTC revision 1008 by schoenebeck, Wed Jan 3 17:49:44 2007 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 Christian Schoenebeck                              *   *   Copyright (C) 2005 - 2007 Christian Schoenebeck                       *
7   *                                                                         *   *                                                                         *
8   *   This program 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  *
10   *   the Free Software Foundation; either version 2 of the License, or     *   *   the Free Software Foundation; either version 2 of the License, or     *
11   *   (at your option) any later version.                                   *   *   (at your option) any later version.                                   *
12   *                                                                         *   *                                                                         *
13   *   This program is distributed in the hope that it will be useful,       *   *   This library is distributed in the hope that it will be useful,       *
14   *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *   *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
15   *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *   *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
16   *   GNU General Public License for more details.                          *   *   GNU General Public License for more details.                          *
17   *                                                                         *   *                                                                         *
18   *   You should have received a copy of the GNU General Public License     *   *   You should have received a copy of the GNU General Public License     *
19   *   along with this program; if not, write to the Free Software           *   *   along with this library; if not, write to the Free Software           *
20   *   Foundation, Inc., 59 Temple Place, Suite 330, Boston,                 *   *   Foundation, Inc., 59 Temple Place, Suite 330, Boston,                 *
21   *   MA  02111-1307  USA                                                   *   *   MA  02111-1307  USA                                                   *
22   ***************************************************************************/   ***************************************************************************/
# Line 29  Line 29 
29  #include "engines/EngineChannelFactory.h"  #include "engines/EngineChannelFactory.h"
30  #include "drivers/audio/AudioOutputDeviceFactory.h"  #include "drivers/audio/AudioOutputDeviceFactory.h"
31  #include "drivers/midi/MidiInputDeviceFactory.h"  #include "drivers/midi/MidiInputDeviceFactory.h"
32    #include "drivers/midi/MidiInstrumentMapper.h"
33  #include "network/lscpserver.h"  #include "network/lscpserver.h"
34    
35  namespace LinuxSampler {  namespace LinuxSampler {
# Line 64  namespace LinuxSampler { Line 65  namespace LinuxSampler {
65          }          }
66      }      }
67    
68      void SamplerChannel::SetEngineType(String EngineType) throw (LinuxSamplerException) {      void SamplerChannel::SetEngineType(String EngineType) throw (Exception) {
69          dmsg(2,("SamplerChannel: Assigning engine type..."));          dmsg(2,("SamplerChannel: Assigning engine type..."));
70    
71          // create new engine channel          // create new engine channel
72          EngineChannel* pNewEngineChannel = EngineChannelFactory::Create(EngineType);          EngineChannel* pNewEngineChannel = EngineChannelFactory::Create(EngineType);
73          if (!pNewEngineChannel) throw LinuxSamplerException("Unknown engine type");          if (!pNewEngineChannel) throw Exception("Unknown engine type");
74    
75          //FIXME: hack to allow fast retrieval of engine channel's sampler channel index          //FIXME: hack to allow fast retrieval of engine channel's sampler channel index
76          pNewEngineChannel->iSamplerChannelIndex = Index();          pNewEngineChannel->iSamplerChannelIndex = Index();
# Line 108  namespace LinuxSampler { Line 109  namespace LinuxSampler {
109      }      }
110    
111      void SamplerChannel::SetAudioOutputDevice(AudioOutputDevice* pDevice) {      void SamplerChannel::SetAudioOutputDevice(AudioOutputDevice* pDevice) {
112            if(pAudioOutputDevice == pDevice) return;
113    
114          // disconnect old device          // disconnect old device
115          if (pAudioOutputDevice && pEngineChannel) {          if (pAudioOutputDevice && pEngineChannel) {
116              Engine* engine = pEngineChannel->GetEngine();              Engine* engine = pEngineChannel->GetEngine();
# Line 141  namespace LinuxSampler { Line 144  namespace LinuxSampler {
144      }      }
145    
146      void SamplerChannel::SetMidiInput(MidiInputDevice* pDevice, int iMidiPort, midi_chan_t MidiChannel) {      void SamplerChannel::SetMidiInput(MidiInputDevice* pDevice, int iMidiPort, midi_chan_t MidiChannel) {
147          if (!pDevice) throw LinuxSamplerException("No MIDI input device assigned.");          if (!pDevice) throw Exception("No MIDI input device assigned.");
148    
149          // get old and new midi input port          // get old and new midi input port
150          MidiInputPort* pOldMidiInputPort = __GetMidiInputDevicePort(GetMidiInputPort());          MidiInputPort* pOldMidiInputPort = __GetMidiInputDevicePort(GetMidiInputPort());
# Line 160  namespace LinuxSampler { Line 163  namespace LinuxSampler {
163          if (pNewMidiInputPort && pEngineChannel) pNewMidiInputPort->Connect(pEngineChannel, MidiChannel);          if (pNewMidiInputPort && pEngineChannel) pNewMidiInputPort->Connect(pEngineChannel, MidiChannel);
164          // Ooops.          // Ooops.
165          if (pNewMidiInputPort == NULL)          if (pNewMidiInputPort == NULL)
166              throw LinuxSamplerException("There is no MIDI input port with index " + ToString(iMidiPort) + ".");              throw Exception("There is no MIDI input port with index " + ToString(iMidiPort) + ".");
167      }      }
168    
169      EngineChannel* SamplerChannel::GetEngineChannel() {      EngineChannel* SamplerChannel::GetEngineChannel() {
# Line 199  namespace LinuxSampler { Line 202  namespace LinuxSampler {
202              }              }
203          }          }
204    
205          throw LinuxSamplerException("Internal error: SamplerChannel index not found");          throw Exception("Internal error: SamplerChannel index not found");
206      }      }
207    
208      MidiInputPort* SamplerChannel::__GetMidiInputDevicePort(int iMidiPort) {      MidiInputPort* SamplerChannel::__GetMidiInputDevicePort(int iMidiPort) {
# Line 249  namespace LinuxSampler { Line 252  namespace LinuxSampler {
252                  LSCPServer::SendLSCPNotify(LSCPEvent(LSCPEvent::event_channel_count, i));                  LSCPServer::SendLSCPNotify(LSCPEvent(LSCPEvent::event_channel_count, i));
253                  return pChannel;                  return pChannel;
254              }              }
255              throw LinuxSamplerException("Internal error: could not find unoccupied sampler channel index.");              throw Exception("Internal error: could not find unoccupied sampler channel index.");
256          }          }
257    
258          // 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
# Line 289  namespace LinuxSampler { Line 292  namespace LinuxSampler {
292          return AudioOutputDeviceFactory::AvailableDrivers();          return AudioOutputDeviceFactory::AvailableDrivers();
293      }      }
294    
295      AudioOutputDevice* Sampler::CreateAudioOutputDevice(String AudioDriver, std::map<String,String> Parameters) throw (LinuxSamplerException) {      std::vector<String> Sampler::AvailableMidiInputDrivers() {
296            return MidiInputDeviceFactory::AvailableDrivers();
297        }
298    
299        std::vector<String> Sampler::AvailableEngineTypes() {
300            return EngineFactory::AvailableEngineTypes();
301        }
302    
303        AudioOutputDevice* Sampler::CreateAudioOutputDevice(String AudioDriver, std::map<String,String> Parameters) throw (Exception) {
304          // create new device          // create new device
305          AudioOutputDevice* pDevice = AudioOutputDeviceFactory::Create(AudioDriver, Parameters);          AudioOutputDevice* pDevice = AudioOutputDeviceFactory::Create(AudioDriver, Parameters);
306    
# Line 301  namespace LinuxSampler { Line 312  namespace LinuxSampler {
312              }              }
313          }          }
314    
315            LSCPServer::SendLSCPNotify(LSCPEvent(LSCPEvent::event_audio_device_count, AudioOutputDevices()));
316          return pDevice;          return pDevice;
317      }      }
318    
# Line 320  namespace LinuxSampler { Line 332  namespace LinuxSampler {
332          return mMidiInputDevices;          return mMidiInputDevices;
333      }      }
334    
335      void Sampler::DestroyAudioOutputDevice(AudioOutputDevice* pDevice) throw (LinuxSamplerException) {      void Sampler::DestroyAudioOutputDevice(AudioOutputDevice* pDevice) throw (Exception) {
336          AudioOutputDeviceMap::iterator iter = mAudioOutputDevices.begin();          AudioOutputDeviceMap::iterator iter = mAudioOutputDevices.begin();
337          for (; iter != mAudioOutputDevices.end(); iter++) {          for (; iter != mAudioOutputDevices.end(); iter++) {
338              if (iter->second == pDevice) {              if (iter->second == pDevice) {
339                  // check if there are still sampler engines connected to this device                  // check if there are still sampler engines connected to this device
340                  for (uint i = 0; i < SamplerChannels(); i++)                  for (uint i = 0; i < SamplerChannels(); i++)
341                      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.");
342    
343                  // disable device                  // disable device
344                  pDevice->Stop();                  pDevice->Stop();
# Line 337  namespace LinuxSampler { Line 349  namespace LinuxSampler {
349                  // destroy and free device from memory                  // destroy and free device from memory
350                  delete pDevice;                  delete pDevice;
351    
352                    LSCPServer::SendLSCPNotify(LSCPEvent(LSCPEvent::event_audio_device_count, AudioOutputDevices()));
353                  break;                  break;
354              }              }
355          }          }
356      }      }
357    
358      void Sampler::DestroyMidiInputDevice(MidiInputDevice* pDevice) throw (LinuxSamplerException) {      void Sampler::DestroyMidiInputDevice(MidiInputDevice* pDevice) throw (Exception) {
359          MidiInputDeviceMap::iterator iter = mMidiInputDevices.begin();          MidiInputDeviceMap::iterator iter = mMidiInputDevices.begin();
360          for (; iter != mMidiInputDevices.end(); iter++) {          for (; iter != mMidiInputDevices.end(); iter++) {
361              if (iter->second == pDevice) {              if (iter->second == pDevice) {
362                  // check if there are still sampler engines connected to this device                  // check if there are still sampler engines connected to this device
363                  for (uint i = 0; i < SamplerChannels(); i++)                  for (uint i = 0; i < SamplerChannels(); i++)
364                      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.");
365    
366                  // disable device                  // disable device
367                  pDevice->StopListen();                  pDevice->StopListen();
# Line 359  namespace LinuxSampler { Line 372  namespace LinuxSampler {
372                  // destroy and free device from memory                  // destroy and free device from memory
373                  delete pDevice;                  delete pDevice;
374    
375                    LSCPServer::SendLSCPNotify(LSCPEvent(LSCPEvent::event_midi_device_count, MidiInputDevices()));
376                  break;                  break;
377              }              }
378          }          }
379      }      }
380    
381      MidiInputDevice* Sampler::CreateMidiInputDevice(String MidiDriver, std::map<String,String> Parameters) throw (LinuxSamplerException) {      MidiInputDevice* Sampler::CreateMidiInputDevice(String MidiDriver, std::map<String,String> Parameters) throw (Exception) {
382          // create new device          // create new device
383          MidiInputDevice* pDevice = MidiInputDeviceFactory::Create(MidiDriver, Parameters, this);          MidiInputDevice* pDevice = MidiInputDeviceFactory::Create(MidiDriver, Parameters, this);
384    
# Line 376  namespace LinuxSampler { Line 390  namespace LinuxSampler {
390                  }                  }
391          }          }
392    
393            LSCPServer::SendLSCPNotify(LSCPEvent(LSCPEvent::event_midi_device_count, MidiInputDevices()));
394          return pDevice;          return pDevice;
395      }      }
396    
# Line 429  namespace LinuxSampler { Line 444  namespace LinuxSampler {
444              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;
445              exit(EXIT_FAILURE);              exit(EXIT_FAILURE);
446          }          }
447    
448            // delete MIDI instrument maps
449            try {
450                MidiInstrumentMapper::RemoveAllMaps();
451            }
452            catch(...) {
453                std::cerr << "Sampler::Reset(): Exception occured while trying to delete all MIDI instrument maps, exiting.\n" << std::flush;
454                exit(EXIT_FAILURE);
455            }
456      }      }
457    
458  } // namespace LinuxSampler  } // namespace LinuxSampler
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