/[svn]/linuxsampler/trunk/src/Sampler.cpp
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revision 835 by persson, Mon Feb 6 18:07:17 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 48  namespace LinuxSampler { Line 49  namespace LinuxSampler {
49    
50      SamplerChannel::~SamplerChannel() {      SamplerChannel::~SamplerChannel() {
51          if (pEngineChannel) {          if (pEngineChannel) {
52                Engine* engine = pEngineChannel->GetEngine();
53                if (pAudioOutputDevice) pAudioOutputDevice->Disconnect(engine);
54    
55              MidiInputPort* pMidiInputPort = (pEngineChannel) ? pEngineChannel->GetMidiInputPort() : __GetMidiInputDevicePort(GetMidiInputChannel());              MidiInputPort* pMidiInputPort = (pEngineChannel) ? pEngineChannel->GetMidiInputPort() : __GetMidiInputDevicePort(GetMidiInputChannel());
56              if (pMidiInputPort) pMidiInputPort->Disconnect(pEngineChannel);              if (pMidiInputPort) pMidiInputPort->Disconnect(pEngineChannel);
57              if (pEngineChannel) {              if (pEngineChannel) {
58                  if (pAudioOutputDevice) pEngineChannel->DisconnectAudioOutputDevice();                  if (pAudioOutputDevice) pEngineChannel->DisconnectAudioOutputDevice();
59                  EngineChannelFactory::Destroy(pEngineChannel);                  EngineChannelFactory::Destroy(pEngineChannel);
60    
61                    // reconnect engine if it still exists
62                    const std::set<Engine*>& engines = EngineFactory::EngineInstances();
63                    if (engines.find(engine) != engines.end()) pAudioOutputDevice->Connect(engine);
64              }              }
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 71  namespace LinuxSampler { Line 79  namespace LinuxSampler {
79          MidiInputPort* pMidiInputPort = __GetMidiInputDevicePort(GetMidiInputPort());          MidiInputPort* pMidiInputPort = __GetMidiInputDevicePort(GetMidiInputPort());
80          // disconnect old engine channel          // disconnect old engine channel
81          if (pEngineChannel) {          if (pEngineChannel) {
82                Engine* engine = pEngineChannel->GetEngine();
83                if (pAudioOutputDevice) pAudioOutputDevice->Disconnect(engine);
84    
85              if (pMidiInputPort) pMidiInputPort->Disconnect(pEngineChannel);              if (pMidiInputPort) pMidiInputPort->Disconnect(pEngineChannel);
86              if (pAudioOutputDevice) pEngineChannel->DisconnectAudioOutputDevice();              if (pAudioOutputDevice) pEngineChannel->DisconnectAudioOutputDevice();
87              EngineChannelFactory::Destroy(pEngineChannel);              EngineChannelFactory::Destroy(pEngineChannel);
88    
89                // reconnect engine if it still exists
90                const std::set<Engine*>& engines = EngineFactory::EngineInstances();
91                if (engines.find(engine) != engines.end()) pAudioOutputDevice->Connect(engine);
92          }          }
93    
94          // connect new engine channel          // connect new engine channel
         if (pMidiInputPort) pMidiInputPort->Connect(pNewEngineChannel, GetMidiInputChannel());  
95          if (pAudioOutputDevice) {          if (pAudioOutputDevice) {
96              pNewEngineChannel->Connect(pAudioOutputDevice);              pNewEngineChannel->Connect(pAudioOutputDevice);
97              pAudioOutputDevice->Connect(pNewEngineChannel->GetEngine());              pAudioOutputDevice->Connect(pNewEngineChannel->GetEngine());
98          }          }
99            if (pMidiInputPort) pMidiInputPort->Connect(pNewEngineChannel, GetMidiInputChannel());
100          pEngineChannel = pNewEngineChannel;          pEngineChannel = pNewEngineChannel;
101    
102          // from now on get MIDI device and port from EngineChannel object          // from now on get MIDI device and port from EngineChannel object
# Line 94  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) pEngineChannel->DisconnectAudioOutputDevice();          if (pAudioOutputDevice && pEngineChannel) {
116                Engine* engine = pEngineChannel->GetEngine();
117                pAudioOutputDevice->Disconnect(engine);
118    
119                pEngineChannel->DisconnectAudioOutputDevice();
120    
121                // reconnect engine if it still exists
122                const std::set<Engine*>& engines = EngineFactory::EngineInstances();
123                if (engines.find(engine) != engines.end()) pAudioOutputDevice->Connect(engine);
124            }
125    
126          // connect new device          // connect new device
127          pAudioOutputDevice = pDevice;          pAudioOutputDevice = pDevice;
128          if (pEngineChannel) {          if (pEngineChannel) {
# Line 117  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 136  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 175  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 225  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 265  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 277  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 296  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();
345    
346                    // remove device from the device list
347                    mAudioOutputDevices.erase(iter);
348    
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;
354              }              }
355          }          }
         // remove devices from the device list  
         mAudioOutputDevices.clear();  
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();
368    
369                    // remove device from the device list
370                    mMidiInputDevices.erase(iter);
371    
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;
377              }              }
378          }          }
         // remove devices from the device list  
         mMidiInputDevices.clear();  
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 346  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 399  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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