/[svn]/linuxsampler/trunk/src/Sampler.cpp
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revision 420 by schoenebeck, Thu Mar 3 03:25:17 2005 UTC revision 1212 by schoenebeck, Tue May 29 23:59:36 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 25  Line 25 
25    
26  #include "Sampler.h"  #include "Sampler.h"
27    
28    #include "engines/EngineFactory.h"
29  #include "engines/EngineChannelFactory.h"  #include "engines/EngineChannelFactory.h"
30    #include "engines/InstrumentEditorFactory.h"
31  #include "drivers/audio/AudioOutputDeviceFactory.h"  #include "drivers/audio/AudioOutputDeviceFactory.h"
32  #include "drivers/midi/MidiInputDeviceFactory.h"  #include "drivers/midi/MidiInputDeviceFactory.h"
33  #include "network/lscpserver.h"  #include "drivers/midi/MidiInstrumentMapper.h"
34    
35  namespace LinuxSampler {  namespace LinuxSampler {
36    
# Line 38  namespace LinuxSampler { Line 40  namespace LinuxSampler {
40      SamplerChannel::SamplerChannel(Sampler* pS) {      SamplerChannel::SamplerChannel(Sampler* pS) {
41          pSampler           = pS;          pSampler           = pS;
42          pEngineChannel     = NULL;          pEngineChannel     = NULL;
         pMidiInputDevice   = NULL;  
43          pAudioOutputDevice = NULL;          pAudioOutputDevice = NULL;
44          midiPort           = 0;          pMidiInputDevice   = NULL;
45          midiChannel        = MidiInputPort::midi_chan_all;          iMidiPort          = 0;
46            midiChannel        = midi_chan_all;
47          iIndex             = -1;          iIndex             = -1;
48      }      }
49    
50      SamplerChannel::~SamplerChannel() {      SamplerChannel::~SamplerChannel() {
51          if (pEngineChannel) {          if (pEngineChannel) {
52              MidiInputPort* pMidiInputPort = GetMidiInputDevicePort(this->midiPort);              Engine* engine = pEngineChannel->GetEngine();
53                if (pAudioOutputDevice) pAudioOutputDevice->Disconnect(engine);
54    
55                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                  delete 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
76            pNewEngineChannel->iSamplerChannelIndex = Index();
77    
78          // dereference midi input port.          // dereference midi input port.
79          MidiInputPort* pMidiInputPort = GetMidiInputDevicePort(this->midiPort);          MidiInputPort* pMidiInputPort = __GetMidiInputDevicePort(GetMidiInputPort());
80          // disconnect old engine          // 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              delete 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
         pEngineChannel = pNewEngineChannel;  
         if (pMidiInputPort) pMidiInputPort->Connect(pNewEngineChannel, this->midiChannel);  
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;
101    
102            // from now on get MIDI device and port from EngineChannel object
103            this->pMidiInputDevice = NULL;
104            this->iMidiPort        = 0;
105    
106            pEngineChannel->StatusChanged(true);
107            fireEngineChanged();
108          dmsg(2,("OK\n"));          dmsg(2,("OK\n"));
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 94  namespace LinuxSampler { Line 132  namespace LinuxSampler {
132      }      }
133    
134      void SamplerChannel::SetMidiInputDevice(MidiInputDevice* pDevice) {      void SamplerChannel::SetMidiInputDevice(MidiInputDevice* pDevice) {
135         SetMidiInput(pDevice, this->midiPort, this->midiChannel);         SetMidiInput(pDevice, 0, GetMidiInputChannel());
136      }      }
137    
138      void SamplerChannel::SetMidiInputPort(int MidiPort) {      void SamplerChannel::SetMidiInputPort(int MidiPort) {
139         SetMidiInput(pMidiInputDevice, MidiPort, this->midiChannel);         SetMidiInput(GetMidiInputDevice(), MidiPort, GetMidiInputChannel());
140      }      }
141    
142      void SamplerChannel::SetMidiInputChannel(MidiInputPort::midi_chan_t MidiChannel) {      void SamplerChannel::SetMidiInputChannel(midi_chan_t MidiChannel) {
143         SetMidiInput(pMidiInputDevice, this->midiPort, MidiChannel);         SetMidiInput(GetMidiInputDevice(), GetMidiInputPort(), MidiChannel);
144      }      }
145    
146      void SamplerChannel::SetMidiInput(MidiInputDevice* pDevice, int iMidiPort, MidiInputPort::midi_chan_t MidiChannel) {      void SamplerChannel::SetMidiInput(MidiInputDevice* pDevice, int iMidiPort, midi_chan_t MidiChannel) {
147          // dereference old midi input port.          if (!pDevice) throw Exception("No MIDI input device assigned.");
148          MidiInputPort* pMidiInputPort = GetMidiInputDevicePort(this->midiPort);  
149            // get old and new midi input port
150            MidiInputPort* pOldMidiInputPort = __GetMidiInputDevicePort(GetMidiInputPort());
151            MidiInputPort* pNewMidiInputPort = pDevice->GetPort(iMidiPort);
152    
153          // disconnect old device port          // disconnect old device port
154          if (pMidiInputPort && pEngineChannel) pMidiInputPort->Disconnect(pEngineChannel);          if (pOldMidiInputPort && pEngineChannel) pOldMidiInputPort->Disconnect(pEngineChannel);
155          // new device, port and channel          // remember new device, port and channel if not engine channel yet created
156          pMidiInputDevice = pDevice;          if (!pEngineChannel) {
157          this->midiPort = iMidiPort;              this->pMidiInputDevice = pDevice;
158          this->midiChannel = MidiChannel;              this->iMidiPort        = iMidiPort;
159                this->midiChannel      = MidiChannel;
160            }
161    
162          // connect new device port          // connect new device port
163          pMidiInputPort = GetMidiInputDevicePort(this->midiPort);          if (pNewMidiInputPort && pEngineChannel) pNewMidiInputPort->Connect(pEngineChannel, MidiChannel);
         if (pMidiInputPort && pEngineChannel) pMidiInputPort->Connect(pEngineChannel, MidiChannel);  
164          // Ooops.          // Ooops.
165          if (pMidiInputPort == 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() {
170          return pEngineChannel;          return pEngineChannel;
171      }      }
172    
173      MidiInputPort::midi_chan_t SamplerChannel::GetMidiInputChannel() {      midi_chan_t SamplerChannel::GetMidiInputChannel() {
174            if (pEngineChannel) this->midiChannel = pEngineChannel->MidiChannel();
175          return this->midiChannel;          return this->midiChannel;
176      }      }
177    
178      int SamplerChannel::GetMidiInputPort() {      int SamplerChannel::GetMidiInputPort() {
179          MidiInputPort* pMidiInputPort = GetMidiInputDevicePort(this->midiPort);          MidiInputPort* pMidiInputPort = (pEngineChannel) ? pEngineChannel->GetMidiInputPort() : NULL;
180          return (pMidiInputPort ? (int) pMidiInputPort->GetPortNumber() : -1);          if (pMidiInputPort) this->iMidiPort = (int) pMidiInputPort->GetPortNumber();
181            return iMidiPort;
182      }      }
183    
184      AudioOutputDevice* SamplerChannel::GetAudioOutputDevice() {      AudioOutputDevice* SamplerChannel::GetAudioOutputDevice() {
# Line 140  namespace LinuxSampler { Line 186  namespace LinuxSampler {
186      }      }
187    
188      MidiInputDevice* SamplerChannel::GetMidiInputDevice() {      MidiInputDevice* SamplerChannel::GetMidiInputDevice() {
189            if (pEngineChannel)
190                pMidiInputDevice = (pEngineChannel->GetMidiInputPort()) ? pEngineChannel->GetMidiInputPort()->GetDevice() : NULL;
191          return pMidiInputDevice;          return pMidiInputDevice;
192      }      }
193    
# Line 154  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        void SamplerChannel::AddEngineChangeListener(EngineChangeListener* l) {
209            llEngineChangeListeners.AddListener(l);
210        }
211    
212        void SamplerChannel::RemoveEngineChangeListener(EngineChangeListener* l) {
213           llEngineChangeListeners.RemoveListener(l);
214        }
215    
216        void SamplerChannel::RemoveAllEngineChangeListeners() {
217           llEngineChangeListeners.RemoveAllListeners();
218        }
219    
220        void SamplerChannel::fireEngineChanged() {
221            for (int i = 0; i < llEngineChangeListeners.GetListenerCount(); i++) {
222                llEngineChangeListeners.GetListener(i)->EngineChanged(Index());
223            }
224      }      }
225    
226      MidiInputPort* SamplerChannel::GetMidiInputDevicePort(int iMidiPort) {      MidiInputPort* SamplerChannel::__GetMidiInputDevicePort(int iMidiPort) {
227          MidiInputPort* pMidiInputPort = NULL;          MidiInputPort* pMidiInputPort = NULL;
228            MidiInputDevice* pMidiInputDevice = GetMidiInputDevice();
229          if (pMidiInputDevice)          if (pMidiInputDevice)
230              pMidiInputPort = pMidiInputDevice->GetPort(iMidiPort);              pMidiInputPort = pMidiInputDevice->GetPort(iMidiPort);
231          return pMidiInputPort;          return pMidiInputPort;
# Line 170  namespace LinuxSampler { Line 237  namespace LinuxSampler {
237      // * Sampler      // * Sampler
238    
239      Sampler::Sampler() {      Sampler::Sampler() {
240            eventHandler.SetSampler(this);
241      }      }
242    
243      Sampler::~Sampler() {      Sampler::~Sampler() {
# Line 180  namespace LinuxSampler { Line 248  namespace LinuxSampler {
248          return mSamplerChannels.size();          return mSamplerChannels.size();
249      }      }
250    
251        void Sampler::AddChannelCountListener(ChannelCountListener* l) {
252            llChannelCountListeners.AddListener(l);
253        }
254    
255        void Sampler::RemoveChannelCountListener(ChannelCountListener* l) {
256           llChannelCountListeners.RemoveListener(l);
257        }
258    
259        void Sampler::fireChannelCountChanged(int NewCount) {
260            for (int i = 0; i < llChannelCountListeners.GetListenerCount(); i++) {
261                llChannelCountListeners.GetListener(i)->ChannelCountChanged(NewCount);
262            }
263        }
264    
265        void Sampler::AddAudioDeviceCountListener(AudioDeviceCountListener* l) {
266            llAudioDeviceCountListeners.AddListener(l);
267        }
268    
269        void Sampler::RemoveAudioDeviceCountListener(AudioDeviceCountListener* l) {
270            llAudioDeviceCountListeners.RemoveListener(l);
271        }
272    
273        void Sampler::fireAudioDeviceCountChanged(int NewCount) {
274            for (int i = 0; i < llAudioDeviceCountListeners.GetListenerCount(); i++) {
275                llAudioDeviceCountListeners.GetListener(i)->AudioDeviceCountChanged(NewCount);
276            }
277        }
278    
279        void Sampler::AddMidiDeviceCountListener(MidiDeviceCountListener* l) {
280            llMidiDeviceCountListeners.AddListener(l);
281        }
282    
283        void Sampler::RemoveMidiDeviceCountListener(MidiDeviceCountListener* l) {
284            llMidiDeviceCountListeners.RemoveListener(l);
285        }
286    
287        void Sampler::fireMidiDeviceCountChanged(int NewCount) {
288            for (int i = 0; i < llMidiDeviceCountListeners.GetListenerCount(); i++) {
289                llMidiDeviceCountListeners.GetListener(i)->MidiDeviceCountChanged(NewCount);
290            }
291        }
292    
293        void Sampler::AddVoiceCountListener(VoiceCountListener* l) {
294            llVoiceCountListeners.AddListener(l);
295        }
296    
297        void Sampler::RemoveVoiceCountListener(VoiceCountListener* l) {
298            llVoiceCountListeners.RemoveListener(l);
299        }
300    
301        void Sampler::fireVoiceCountChanged(int ChannelId, int NewCount) {
302            for (int i = 0; i < llVoiceCountListeners.GetListenerCount(); i++) {
303                llVoiceCountListeners.GetListener(i)->VoiceCountChanged(ChannelId, NewCount);
304            }
305        }
306    
307        void Sampler::AddStreamCountListener(StreamCountListener* l) {
308            llStreamCountListeners.AddListener(l);
309        }
310    
311        void Sampler::RemoveStreamCountListener(StreamCountListener* l) {
312            llStreamCountListeners.RemoveListener(l);
313        }
314    
315        void Sampler::fireStreamCountChanged(int ChannelId, int NewCount) {
316            for (int i = 0; i < llStreamCountListeners.GetListenerCount(); i++) {
317                llStreamCountListeners.GetListener(i)->StreamCountChanged(ChannelId, NewCount);
318            }
319        }
320    
321        void Sampler::AddBufferFillListener(BufferFillListener* l) {
322            llBufferFillListeners.AddListener(l);
323        }
324    
325        void Sampler::RemoveBufferFillListener(BufferFillListener* l) {
326            llBufferFillListeners.RemoveListener(l);
327        }
328    
329        void Sampler::fireBufferFillChanged(int ChannelId, String FillData) {
330            for (int i = 0; i < llBufferFillListeners.GetListenerCount(); i++) {
331                llBufferFillListeners.GetListener(i)->BufferFillChanged(ChannelId, FillData);
332            }
333        }
334    
335        void Sampler::AddTotalVoiceCountListener(TotalVoiceCountListener* l) {
336            llTotalVoiceCountListeners.AddListener(l);
337        }
338    
339        void Sampler::RemoveTotalVoiceCountListener(TotalVoiceCountListener* l) {
340            llTotalVoiceCountListeners.RemoveListener(l);
341        }
342    
343        void Sampler::fireTotalVoiceCountChanged(int NewCount) {
344            for (int i = 0; i < llTotalVoiceCountListeners.GetListenerCount(); i++) {
345                llTotalVoiceCountListeners.GetListener(i)->TotalVoiceCountChanged(NewCount);
346            }
347        }
348    
349        void Sampler::AddFxSendCountListener(FxSendCountListener* l) {
350            llFxSendCountListeners.AddListener(l);
351        }
352    
353        void Sampler::RemoveFxSendCountListener(FxSendCountListener* l) {
354            llFxSendCountListeners.RemoveListener(l);
355        }
356    
357        void Sampler::fireFxSendCountChanged(int ChannelId, int NewCount) {
358            for (int i = 0; i < llFxSendCountListeners.GetListenerCount(); i++) {
359                llFxSendCountListeners.GetListener(i)->FxSendCountChanged(ChannelId, NewCount);
360            }
361        }
362    
363        void Sampler::EventHandler::EngineChanged(int ChannelId) {
364            EngineChannel* engineChannel = pSampler->GetSamplerChannel(ChannelId)->GetEngineChannel();
365            if(engineChannel == NULL) return;
366            engineChannel->AddFxSendCountListener(this);
367        }
368    
369        void Sampler::EventHandler::FxSendCountChanged(int ChannelId, int NewCount) {
370            pSampler->fireFxSendCountChanged(ChannelId, NewCount);
371        }
372    
373    
374      SamplerChannel* Sampler::AddSamplerChannel() {      SamplerChannel* Sampler::AddSamplerChannel() {
375          // if there's no sampler channel yet          // if there's no sampler channel yet
376          if (!mSamplerChannels.size()) {          if (!mSamplerChannels.size()) {
377              SamplerChannel* pChannel = new SamplerChannel(this);              SamplerChannel* pChannel = new SamplerChannel(this);
378              mSamplerChannels[0] = pChannel;              mSamplerChannels[0] = pChannel;
379              LSCPServer::SendLSCPNotify(LSCPEvent(LSCPEvent::event_channels, 1));              fireChannelCountChanged(1);
380                pChannel->AddEngineChangeListener(&eventHandler);
381              return pChannel;              return pChannel;
382          }          }
383    
# Line 200  namespace LinuxSampler { Line 392  namespace LinuxSampler {
392                  // we found an unused index, so insert the new channel there                  // we found an unused index, so insert the new channel there
393                  SamplerChannel* pChannel = new SamplerChannel(this);                  SamplerChannel* pChannel = new SamplerChannel(this);
394                  mSamplerChannels[i] = pChannel;                  mSamplerChannels[i] = pChannel;
395                  LSCPServer::SendLSCPNotify(LSCPEvent(LSCPEvent::event_channels, i));                  fireChannelCountChanged(SamplerChannels());
396                    pChannel->AddEngineChangeListener(&eventHandler);
397                  return pChannel;                  return pChannel;
398              }              }
399              throw LinuxSamplerException("Internal error: could not find unoccupied sampler channel index.");              throw Exception("Internal error: could not find unoccupied sampler channel index.");
400          }          }
401    
402          // 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
403          SamplerChannel* pChannel = new SamplerChannel(this);          SamplerChannel* pChannel = new SamplerChannel(this);
404          mSamplerChannels[lastIndex + 1] = pChannel;          mSamplerChannels[lastIndex + 1] = pChannel;
405          LSCPServer::SendLSCPNotify(LSCPEvent(LSCPEvent::event_channels, lastIndex + 1));          fireChannelCountChanged(SamplerChannels());
406            pChannel->AddEngineChangeListener(&eventHandler);
407          return pChannel;          return pChannel;
408      }      }
409    
# Line 225  namespace LinuxSampler { Line 419  namespace LinuxSampler {
419          SamplerChannelMap::iterator iterChan = mSamplerChannels.begin();          SamplerChannelMap::iterator iterChan = mSamplerChannels.begin();
420          for (; iterChan != mSamplerChannels.end(); iterChan++) {          for (; iterChan != mSamplerChannels.end(); iterChan++) {
421              if (iterChan->second == pSamplerChannel) {              if (iterChan->second == pSamplerChannel) {
422                    pSamplerChannel->RemoveAllEngineChangeListeners();
423                  mSamplerChannels.erase(iterChan);                  mSamplerChannels.erase(iterChan);
424                  delete pSamplerChannel;                  delete pSamplerChannel;
425                  LSCPServer::SendLSCPNotify(LSCPEvent(LSCPEvent::event_channels, mSamplerChannels.size()));                  fireChannelCountChanged(SamplerChannels());
426                  return;                  return;
427              }              }
428          }          }
# Line 243  namespace LinuxSampler { Line 438  namespace LinuxSampler {
438          return AudioOutputDeviceFactory::AvailableDrivers();          return AudioOutputDeviceFactory::AvailableDrivers();
439      }      }
440    
441      AudioOutputDevice* Sampler::CreateAudioOutputDevice(String AudioDriver, std::map<String,String> Parameters) throw (LinuxSamplerException) {      std::vector<String> Sampler::AvailableMidiInputDrivers() {
442            return MidiInputDeviceFactory::AvailableDrivers();
443        }
444    
445        std::vector<String> Sampler::AvailableEngineTypes() {
446            return EngineFactory::AvailableEngineTypes();
447        }
448    
449        AudioOutputDevice* Sampler::CreateAudioOutputDevice(String AudioDriver, std::map<String,String> Parameters) throw (Exception) {
450          // create new device          // create new device
451          AudioOutputDevice* pDevice = AudioOutputDeviceFactory::Create(AudioDriver, Parameters);          AudioOutputDevice* pDevice = AudioOutputDeviceFactory::Create(AudioDriver, Parameters);
452    
# Line 255  namespace LinuxSampler { Line 458  namespace LinuxSampler {
458              }              }
459          }          }
460    
461            fireAudioDeviceCountChanged(AudioOutputDevices());
462          return pDevice;          return pDevice;
463      }      }
464    
# Line 274  namespace LinuxSampler { Line 478  namespace LinuxSampler {
478          return mMidiInputDevices;          return mMidiInputDevices;
479      }      }
480    
481      void Sampler::DestroyAudioOutputDevice(AudioOutputDevice* pDevice) throw (LinuxSamplerException) {      void Sampler::DestroyAudioOutputDevice(AudioOutputDevice* pDevice) throw (Exception) {
482          AudioOutputDeviceMap::iterator iter = mAudioOutputDevices.begin();          AudioOutputDeviceMap::iterator iter = mAudioOutputDevices.begin();
483          for (; iter != mAudioOutputDevices.end(); iter++) {          for (; iter != mAudioOutputDevices.end(); iter++) {
484              if (iter->second == pDevice) {              if (iter->second == pDevice) {
485                  // check if there are still sampler engines connected to this device                  // check if there are still sampler engines connected to this device
486                  for (uint i = 0; i < SamplerChannels(); i++)                  for (uint i = 0; i < SamplerChannels(); i++)
487                      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.");
488    
489                  // disable device                  // disable device
490                  pDevice->Stop();                  pDevice->Stop();
# Line 290  namespace LinuxSampler { Line 494  namespace LinuxSampler {
494    
495                  // destroy and free device from memory                  // destroy and free device from memory
496                  delete pDevice;                  delete pDevice;
497    
498                    fireAudioDeviceCountChanged(AudioOutputDevices());
499                    break;
500              }              }
501          }          }
502      }      }
503    
504      void Sampler::DestroyMidiInputDevice(MidiInputDevice* pDevice) throw (LinuxSamplerException) {      void Sampler::DestroyMidiInputDevice(MidiInputDevice* pDevice) throw (Exception) {
505          MidiInputDeviceMap::iterator iter = mMidiInputDevices.begin();          MidiInputDeviceMap::iterator iter = mMidiInputDevices.begin();
506          for (; iter != mMidiInputDevices.end(); iter++) {          for (; iter != mMidiInputDevices.end(); iter++) {
507              if (iter->second == pDevice) {              if (iter->second == pDevice) {
508                  // check if there are still sampler engines connected to this device                  // check if there are still sampler engines connected to this device
509                  for (uint i = 0; i < SamplerChannels(); i++)                  for (uint i = 0; i < SamplerChannels(); i++)
510                      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.");
511    
512                  // disable device                  // disable device
513                  pDevice->StopListen();                  pDevice->StopListen();
# Line 310  namespace LinuxSampler { Line 517  namespace LinuxSampler {
517    
518                  // destroy and free device from memory                  // destroy and free device from memory
519                  delete pDevice;                  delete pDevice;
520    
521                    fireMidiDeviceCountChanged(MidiInputDevices());
522                    break;
523              }              }
524          }          }
525      }      }
526    
527      MidiInputDevice* Sampler::CreateMidiInputDevice(String MidiDriver, std::map<String,String> Parameters) throw (LinuxSamplerException) {      MidiInputDevice* Sampler::CreateMidiInputDevice(String MidiDriver, std::map<String,String> Parameters) throw (Exception) {
528          // create new device          // create new device
529          MidiInputDevice* pDevice = MidiInputDeviceFactory::Create(MidiDriver, Parameters);          MidiInputDevice* pDevice = MidiInputDeviceFactory::Create(MidiDriver, Parameters, this);
530    
531          // add new device to the midi device list          // add new device to the midi device list
532          for (uint i = 0; ; i++) { // seek for a free place starting from the beginning          for (uint i = 0; ; i++) { // seek for a free place starting from the beginning
# Line 326  namespace LinuxSampler { Line 536  namespace LinuxSampler {
536                  }                  }
537          }          }
538    
539            fireMidiDeviceCountChanged(MidiInputDevices());
540          return pDevice;          return pDevice;
541      }      }
542    
543        int Sampler::GetVoiceCount() {
544            int count = 0;
545            std::set<Engine*>::iterator it = EngineFactory::EngineInstances().begin();
546    
547            for(; it != EngineFactory::EngineInstances().end(); it++) {
548                count += (*it)->VoiceCount();
549            }
550    
551            return count;
552        }
553    
554      void Sampler::Reset() {      void Sampler::Reset() {
555          // delete sampler channels          // delete sampler channels
556          try {          try {
# Line 368  namespace LinuxSampler { Line 590  namespace LinuxSampler {
590              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;
591              exit(EXIT_FAILURE);              exit(EXIT_FAILURE);
592          }          }
593    
594            // delete MIDI instrument maps
595            try {
596                MidiInstrumentMapper::RemoveAllMaps();
597            }
598            catch(...) {
599                std::cerr << "Sampler::Reset(): Exception occured while trying to delete all MIDI instrument maps, exiting.\n" << std::flush;
600                exit(EXIT_FAILURE);
601            }
602    
603            // unload all instrument editor DLLs
604            InstrumentEditorFactory::ClosePlugins();
605      }      }
606    
607  } // namespace LinuxSampler  } // namespace LinuxSampler
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