/[svn]/linuxsampler/trunk/src/Sampler.cpp
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revision 209 by schoenebeck, Sun Jul 18 00:29:39 2004 UTC revision 1375 by schoenebeck, Wed Oct 3 18:41:09 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 - 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 24  Line 25 
25    
26  #include "Sampler.h"  #include "Sampler.h"
27    
28    #include "engines/EngineFactory.h"
29    #include "engines/EngineChannelFactory.h"
30    #include "plugins/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 "engines/gig/Engine.h"  #include "drivers/midi/MidiInstrumentMapper.h"
34    
35  namespace LinuxSampler {  namespace LinuxSampler {
36    
# Line 35  namespace LinuxSampler { Line 39  namespace LinuxSampler {
39    
40      SamplerChannel::SamplerChannel(Sampler* pS) {      SamplerChannel::SamplerChannel(Sampler* pS) {
41          pSampler           = pS;          pSampler           = pS;
42          pEngine            = NULL;          pEngineChannel     = NULL;
         pMidiInputDevice   = NULL;  
43          pAudioOutputDevice = NULL;          pAudioOutputDevice = NULL;
44          midiPort           = 0;          pMidiInputDevice   = NULL;
45          midiChannel        = MidiInputDevice::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 (pEngine) {          if (pEngineChannel) {
52              MidiInputDevice::MidiInputPort *pMidiInputPort = GetMidiInputDevicePort(this->midiPort);              Engine* engine = pEngineChannel->GetEngine();
53              if (pMidiInputPort) pMidiInputPort->Disconnect(pEngine);              if (pAudioOutputDevice) pAudioOutputDevice->Disconnect(engine);
54              if (pAudioOutputDevice) pAudioOutputDevice->Disconnect(pEngine);  
55              delete pEngine;              MidiInputPort* pMidiInputPort = (pEngineChannel) ? pEngineChannel->GetMidiInputPort() : __GetMidiInputDevicePort(GetMidiInputChannel());
56                if (pMidiInputPort) pMidiInputPort->Disconnect(pEngineChannel);
57                if (pEngineChannel) {
58                    if (pAudioOutputDevice) pEngineChannel->DisconnectAudioOutputDevice();
59                    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::LoadEngine(Engine::type_t EngineType) {      void SamplerChannel::SetEngineType(String EngineType) throw (Exception) {
69          dmsg(2,("SamplerChannel: Loading engine..."));          dmsg(2,("SamplerChannel: Assigning engine type..."));
70            
71          // create new engine          if (pEngineChannel) {
72          Engine* pNewEngine = NULL;              if (!strcasecmp(pEngineChannel->EngineName().c_str(), EngineType.c_str())) {
73          switch (EngineType) {                  dmsg(2,("OK\n"));
74              case Engine::type_gig:                  return;
75                  pNewEngine = new gig::Engine;              }
                 break;  
             default:  
                 throw LinuxSamplerException("Unknown engine type");  
76          }          }
77    
78            // create new engine channel
79            EngineChannel* pNewEngineChannel = EngineChannelFactory::Create(EngineType);
80            if (!pNewEngineChannel) throw Exception("Unknown engine type");
81    
82            //FIXME: hack to allow fast retrieval of engine channel's sampler channel index
83            pNewEngineChannel->iSamplerChannelIndex = Index();
84    
85          // dereference midi input port.          // dereference midi input port.
86          MidiInputDevice::MidiInputPort *pMidiInputPort = GetMidiInputDevicePort(this->midiPort);          MidiInputPort* pMidiInputPort = __GetMidiInputDevicePort(GetMidiInputPort());
87          // disconnect old engine          // disconnect old engine channel
88          if (pEngine) {          if (pEngineChannel) {
89              if (pMidiInputPort) pMidiInputPort->Disconnect(pEngine);              Engine* engine = pEngineChannel->GetEngine();
90              if (pAudioOutputDevice) pAudioOutputDevice->Disconnect(pEngine);              if (pAudioOutputDevice) pAudioOutputDevice->Disconnect(engine);
91              delete pEngine;  
92          }              if (pMidiInputPort) pMidiInputPort->Disconnect(pEngineChannel);
93                if (pAudioOutputDevice) pEngineChannel->DisconnectAudioOutputDevice();
94                EngineChannelFactory::Destroy(pEngineChannel);
95    
96                // reconnect engine if it still exists
97                const std::set<Engine*>& engines = EngineFactory::EngineInstances();
98                if (engines.find(engine) != engines.end()) pAudioOutputDevice->Connect(engine);
99            }
100    
101            // connect new engine channel
102            if (pAudioOutputDevice) {
103                pNewEngineChannel->Connect(pAudioOutputDevice);
104                pAudioOutputDevice->Connect(pNewEngineChannel->GetEngine());
105            }
106            if (pMidiInputPort) pMidiInputPort->Connect(pNewEngineChannel, GetMidiInputChannel());
107            pEngineChannel = pNewEngineChannel;
108    
109            // from now on get MIDI device and port from EngineChannel object
110            this->pMidiInputDevice = NULL;
111            this->iMidiPort        = 0;
112    
113          // connect new engine          pEngineChannel->StatusChanged(true);
114          pEngine = pNewEngine;          fireEngineChanged();
         if (pMidiInputPort) pMidiInputPort->Connect(pNewEngine, this->midiChannel);  
         if (pAudioOutputDevice) pAudioOutputDevice->Connect(pNewEngine);  
115          dmsg(2,("OK\n"));          dmsg(2,("OK\n"));
116      }      }
117    
118      void SamplerChannel::SetAudioOutputDevice(AudioOutputDevice* pDevice) {      void SamplerChannel::SetAudioOutputDevice(AudioOutputDevice* pDevice) {
119            if(pAudioOutputDevice == pDevice) return;
120    
121          // disconnect old device          // disconnect old device
122          if (pAudioOutputDevice && pEngine) pAudioOutputDevice->Disconnect(pEngine);          if (pAudioOutputDevice && pEngineChannel) {
123                Engine* engine = pEngineChannel->GetEngine();
124                pAudioOutputDevice->Disconnect(engine);
125    
126                pEngineChannel->DisconnectAudioOutputDevice();
127    
128                // reconnect engine if it still exists
129                const std::set<Engine*>& engines = EngineFactory::EngineInstances();
130                if (engines.find(engine) != engines.end()) pAudioOutputDevice->Connect(engine);
131            }
132    
133          // connect new device          // connect new device
134          pAudioOutputDevice = pDevice;          pAudioOutputDevice = pDevice;
135          if (pEngine) pAudioOutputDevice->Connect(pEngine);          if (pEngineChannel) {
136                pEngineChannel->Connect(pAudioOutputDevice);
137                pAudioOutputDevice->Connect(pEngineChannel->GetEngine());
138            }
139      }      }
140    
141      void SamplerChannel::SetMidiInputDevice(MidiInputDevice* pDevice) {      void SamplerChannel::SetMidiInputDevice(MidiInputDevice* pDevice) {
142         SetMidiInput(pDevice, this->midiPort, this->midiChannel);         SetMidiInput(pDevice, 0, GetMidiInputChannel());
143      }      }
144    
145      void SamplerChannel::SetMidiInputPort(int MidiPort) {      void SamplerChannel::SetMidiInputPort(int MidiPort) {
146         SetMidiInput(pMidiInputDevice, MidiPort, this->midiChannel);         SetMidiInput(GetMidiInputDevice(), MidiPort, GetMidiInputChannel());
147      }      }
148    
149      void SamplerChannel::SetMidiInputChannel(MidiInputDevice::MidiInputPort::midi_chan_t MidiChannel) {      void SamplerChannel::SetMidiInputChannel(midi_chan_t MidiChannel) {
150         SetMidiInput(pMidiInputDevice, this->midiPort, MidiChannel);         SetMidiInput(GetMidiInputDevice(), GetMidiInputPort(), MidiChannel);
151      }      }
152    
153      void SamplerChannel::SetMidiInput(MidiInputDevice* pDevice, int MidiPort, MidiInputDevice::MidiInputPort::midi_chan_t MidiChannel) {      void SamplerChannel::SetMidiInput(MidiInputDevice* pDevice, int iMidiPort, midi_chan_t MidiChannel) {
154          // dereference old midi input port.          if (!pDevice) throw Exception("No MIDI input device assigned.");
155          MidiInputDevice::MidiInputPort *pMidiInputPort = GetMidiInputDevicePort(this->midiPort);  
156            // get old and new midi input port
157            MidiInputPort* pOldMidiInputPort = __GetMidiInputDevicePort(GetMidiInputPort());
158            MidiInputPort* pNewMidiInputPort = pDevice->GetPort(iMidiPort);
159    
160          // disconnect old device port          // disconnect old device port
161          if (pMidiInputPort && pEngine) pMidiInputPort->Disconnect(pEngine);          if (pOldMidiInputPort && pEngineChannel) pOldMidiInputPort->Disconnect(pEngineChannel);
162          // new device, port and channel          // remember new device, port and channel if not engine channel yet created
163          pMidiInputDevice = pDevice;          if (!pEngineChannel) {
164          this->midiPort = MidiPort;              this->pMidiInputDevice = pDevice;
165          this->midiChannel = MidiChannel;              this->iMidiPort        = iMidiPort;
166                this->midiChannel      = MidiChannel;
167            }
168    
169          // connect new device port          // connect new device port
170          pMidiInputPort = GetMidiInputDevicePort(this->midiPort);          if (pNewMidiInputPort && pEngineChannel) pNewMidiInputPort->Connect(pEngineChannel, MidiChannel);
         if (pMidiInputPort && pEngine) pMidiInputPort->Connect(pEngine, MidiChannel);  
171          // Ooops.          // Ooops.
172          if (pMidiInputPort == NULL)          if (pNewMidiInputPort == NULL)
173              throw LinuxSamplerException("There is no MIDI input port with index " + ToString(MidiPort) + ".");              throw Exception("There is no MIDI input port with index " + ToString(iMidiPort) + ".");
174      }      }
175    
176      Engine* SamplerChannel::GetEngine() {      EngineChannel* SamplerChannel::GetEngineChannel() {
177          return pEngine;          return pEngineChannel;
178      }      }
179    
180      MidiInputDevice::MidiInputPort::midi_chan_t SamplerChannel::GetMidiInputChannel() {      midi_chan_t SamplerChannel::GetMidiInputChannel() {
181            if (pEngineChannel) this->midiChannel = pEngineChannel->MidiChannel();
182          return this->midiChannel;          return this->midiChannel;
183      }      }
184    
185      int SamplerChannel::GetMidiInputPort() {      int SamplerChannel::GetMidiInputPort() {
186          MidiInputDevice::MidiInputPort *pMidiInputPort = GetMidiInputDevicePort(this->midiPort);          MidiInputPort* pMidiInputPort = (pEngineChannel) ? pEngineChannel->GetMidiInputPort() : NULL;
187          return (pMidiInputPort ? (int) pMidiInputPort->GetPortNumber() : -1);          if (pMidiInputPort) this->iMidiPort = (int) pMidiInputPort->GetPortNumber();
188            return iMidiPort;
189      }      }
190    
191      AudioOutputDevice* SamplerChannel::GetAudioOutputDevice() {      AudioOutputDevice* SamplerChannel::GetAudioOutputDevice() {
# Line 136  namespace LinuxSampler { Line 193  namespace LinuxSampler {
193      }      }
194    
195      MidiInputDevice* SamplerChannel::GetMidiInputDevice() {      MidiInputDevice* SamplerChannel::GetMidiInputDevice() {
196            if (pEngineChannel)
197                pMidiInputDevice = (pEngineChannel->GetMidiInputPort()) ? pEngineChannel->GetMidiInputPort()->GetDevice() : NULL;
198          return pMidiInputDevice;          return pMidiInputDevice;
199      }      }
200    
# Line 150  namespace LinuxSampler { Line 209  namespace LinuxSampler {
209              }              }
210          }          }
211    
212          throw LinuxSamplerException("Internal error: SamplerChannel index not found");          throw Exception("Internal error: SamplerChannel index not found");
213      }      }
214    
215      MidiInputDevice::MidiInputPort* SamplerChannel::GetMidiInputDevicePort(int MidiPort) {      void SamplerChannel::AddEngineChangeListener(EngineChangeListener* l) {
216          MidiInputDevice::MidiInputPort *pMidiInputPort = NULL;          llEngineChangeListeners.AddListener(l);
217        }
218    
219        void SamplerChannel::RemoveEngineChangeListener(EngineChangeListener* l) {
220           llEngineChangeListeners.RemoveListener(l);
221        }
222    
223        void SamplerChannel::RemoveAllEngineChangeListeners() {
224           llEngineChangeListeners.RemoveAllListeners();
225        }
226    
227        void SamplerChannel::fireEngineChanged() {
228            for (int i = 0; i < llEngineChangeListeners.GetListenerCount(); i++) {
229                llEngineChangeListeners.GetListener(i)->EngineChanged(Index());
230            }
231        }
232    
233        MidiInputPort* SamplerChannel::__GetMidiInputDevicePort(int iMidiPort) {
234            MidiInputPort* pMidiInputPort = NULL;
235            MidiInputDevice* pMidiInputDevice = GetMidiInputDevice();
236          if (pMidiInputDevice)          if (pMidiInputDevice)
237              pMidiInputPort = pMidiInputDevice->GetPort(MidiPort);              pMidiInputPort = pMidiInputDevice->GetPort(iMidiPort);
238          return pMidiInputPort;          return pMidiInputPort;
239      }      }
240    
241    
242    
243      // ******************************************************************      // ******************************************************************
244      // * Sampler      // * Sampler
245    
246      Sampler::Sampler() {      Sampler::Sampler() {
247            eventHandler.SetSampler(this);
248      }      }
249    
250      Sampler::~Sampler() {      Sampler::~Sampler() {
251          // delete sampler channels          Reset();
252          {      }
253              SamplerChannelMap::iterator iter = mSamplerChannels.begin();  
254              for (; iter != mSamplerChannels.end(); iter++) delete iter->second;      uint Sampler::SamplerChannels() {
255            return mSamplerChannels.size();
256        }
257    
258        void Sampler::AddChannelCountListener(ChannelCountListener* l) {
259            llChannelCountListeners.AddListener(l);
260        }
261    
262        void Sampler::RemoveChannelCountListener(ChannelCountListener* l) {
263           llChannelCountListeners.RemoveListener(l);
264        }
265    
266        void Sampler::fireChannelCountChanged(int NewCount) {
267            for (int i = 0; i < llChannelCountListeners.GetListenerCount(); i++) {
268                llChannelCountListeners.GetListener(i)->ChannelCountChanged(NewCount);
269          }          }
270        }
271    
272          // delete midi input devices      void Sampler::AddAudioDeviceCountListener(AudioDeviceCountListener* l) {
273          {          llAudioDeviceCountListeners.AddListener(l);
274              MidiInputDeviceMap::iterator iter = mMidiInputDevices.begin();      }
275              for (; iter != mMidiInputDevices.end(); iter++) {  
276                  MidiInputDevice* pDevice = iter->second;      void Sampler::RemoveAudioDeviceCountListener(AudioDeviceCountListener* l) {
277                  pDevice->StopListen();          llAudioDeviceCountListeners.RemoveListener(l);
278                  delete pDevice;      }
279              }  
280        void Sampler::fireAudioDeviceCountChanged(int NewCount) {
281            for (int i = 0; i < llAudioDeviceCountListeners.GetListenerCount(); i++) {
282                llAudioDeviceCountListeners.GetListener(i)->AudioDeviceCountChanged(NewCount);
283          }          }
284        }
285    
286          // delete audio output devices      void Sampler::AddMidiDeviceCountListener(MidiDeviceCountListener* l) {
287          {          llMidiDeviceCountListeners.AddListener(l);
288              AudioOutputDeviceMap::iterator iter = mAudioOutputDevices.begin();      }
289              for (; iter != mAudioOutputDevices.end(); iter++) {  
290                  AudioOutputDevice* pDevice = iter->second;      void Sampler::RemoveMidiDeviceCountListener(MidiDeviceCountListener* l) {
291                  pDevice->Stop();          llMidiDeviceCountListeners.RemoveListener(l);
292                  delete pDevice;      }
293              }  
294        void Sampler::fireMidiDeviceCountChanged(int NewCount) {
295            for (int i = 0; i < llMidiDeviceCountListeners.GetListenerCount(); i++) {
296                llMidiDeviceCountListeners.GetListener(i)->MidiDeviceCountChanged(NewCount);
297          }          }
298      }      }
299    
300      uint Sampler::SamplerChannels() {      void Sampler::AddVoiceCountListener(VoiceCountListener* l) {
301          return mSamplerChannels.size();          llVoiceCountListeners.AddListener(l);
302        }
303    
304        void Sampler::RemoveVoiceCountListener(VoiceCountListener* l) {
305            llVoiceCountListeners.RemoveListener(l);
306        }
307    
308        void Sampler::fireVoiceCountChanged(int ChannelId, int NewCount) {
309            for (int i = 0; i < llVoiceCountListeners.GetListenerCount(); i++) {
310                llVoiceCountListeners.GetListener(i)->VoiceCountChanged(ChannelId, NewCount);
311            }
312        }
313    
314        void Sampler::AddStreamCountListener(StreamCountListener* l) {
315            llStreamCountListeners.AddListener(l);
316        }
317    
318        void Sampler::RemoveStreamCountListener(StreamCountListener* l) {
319            llStreamCountListeners.RemoveListener(l);
320        }
321    
322        void Sampler::fireStreamCountChanged(int ChannelId, int NewCount) {
323            for (int i = 0; i < llStreamCountListeners.GetListenerCount(); i++) {
324                llStreamCountListeners.GetListener(i)->StreamCountChanged(ChannelId, NewCount);
325            }
326        }
327    
328        void Sampler::AddBufferFillListener(BufferFillListener* l) {
329            llBufferFillListeners.AddListener(l);
330        }
331    
332        void Sampler::RemoveBufferFillListener(BufferFillListener* l) {
333            llBufferFillListeners.RemoveListener(l);
334        }
335    
336        void Sampler::fireBufferFillChanged(int ChannelId, String FillData) {
337            for (int i = 0; i < llBufferFillListeners.GetListenerCount(); i++) {
338                llBufferFillListeners.GetListener(i)->BufferFillChanged(ChannelId, FillData);
339            }
340        }
341    
342        void Sampler::AddTotalVoiceCountListener(TotalVoiceCountListener* l) {
343            llTotalVoiceCountListeners.AddListener(l);
344        }
345    
346        void Sampler::RemoveTotalVoiceCountListener(TotalVoiceCountListener* l) {
347            llTotalVoiceCountListeners.RemoveListener(l);
348      }      }
349    
350        void Sampler::fireTotalVoiceCountChanged(int NewCount) {
351            for (int i = 0; i < llTotalVoiceCountListeners.GetListenerCount(); i++) {
352                llTotalVoiceCountListeners.GetListener(i)->TotalVoiceCountChanged(NewCount);
353            }
354        }
355    
356        void Sampler::AddFxSendCountListener(FxSendCountListener* l) {
357            llFxSendCountListeners.AddListener(l);
358        }
359    
360        void Sampler::RemoveFxSendCountListener(FxSendCountListener* l) {
361            llFxSendCountListeners.RemoveListener(l);
362        }
363    
364        void Sampler::fireFxSendCountChanged(int ChannelId, int NewCount) {
365            for (int i = 0; i < llFxSendCountListeners.GetListenerCount(); i++) {
366                llFxSendCountListeners.GetListener(i)->FxSendCountChanged(ChannelId, NewCount);
367            }
368        }
369    
370        void Sampler::EventHandler::EngineChanged(int ChannelId) {
371            EngineChannel* engineChannel = pSampler->GetSamplerChannel(ChannelId)->GetEngineChannel();
372            if(engineChannel == NULL) return;
373            engineChannel->AddFxSendCountListener(this);
374        }
375    
376        void Sampler::EventHandler::FxSendCountChanged(int ChannelId, int NewCount) {
377            pSampler->fireFxSendCountChanged(ChannelId, NewCount);
378        }
379    
380    
381      SamplerChannel* Sampler::AddSamplerChannel() {      SamplerChannel* Sampler::AddSamplerChannel() {
382          // if there's no sampler channel yet          // if there's no sampler channel yet
383          if (!mSamplerChannels.size()) {          if (!mSamplerChannels.size()) {
384              SamplerChannel* pChannel = new SamplerChannel(this);              SamplerChannel* pChannel = new SamplerChannel(this);
385              mSamplerChannels[0] = pChannel;              mSamplerChannels[0] = pChannel;
386                fireChannelCountChanged(1);
387                pChannel->AddEngineChangeListener(&eventHandler);
388              return pChannel;              return pChannel;
389          }          }
390    
# Line 217  namespace LinuxSampler { Line 399  namespace LinuxSampler {
399                  // we found an unused index, so insert the new channel there                  // we found an unused index, so insert the new channel there
400                  SamplerChannel* pChannel = new SamplerChannel(this);                  SamplerChannel* pChannel = new SamplerChannel(this);
401                  mSamplerChannels[i] = pChannel;                  mSamplerChannels[i] = pChannel;
402                    fireChannelCountChanged(SamplerChannels());
403                    pChannel->AddEngineChangeListener(&eventHandler);
404                  return pChannel;                  return pChannel;
405              }              }
406              throw LinuxSamplerException("Internal error: could not find unoccupied sampler channel index.");              throw Exception("Internal error: could not find unoccupied sampler channel index.");
407          }          }
408    
409          // 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
410          SamplerChannel* pChannel = new SamplerChannel(this);          SamplerChannel* pChannel = new SamplerChannel(this);
411          mSamplerChannels[lastIndex + 1] = pChannel;          mSamplerChannels[lastIndex + 1] = pChannel;
412            fireChannelCountChanged(SamplerChannels());
413            pChannel->AddEngineChangeListener(&eventHandler);
414          return pChannel;          return pChannel;
415      }      }
416    
# Line 240  namespace LinuxSampler { Line 426  namespace LinuxSampler {
426          SamplerChannelMap::iterator iterChan = mSamplerChannels.begin();          SamplerChannelMap::iterator iterChan = mSamplerChannels.begin();
427          for (; iterChan != mSamplerChannels.end(); iterChan++) {          for (; iterChan != mSamplerChannels.end(); iterChan++) {
428              if (iterChan->second == pSamplerChannel) {              if (iterChan->second == pSamplerChannel) {
429                    pSamplerChannel->RemoveAllEngineChangeListeners();
430                  mSamplerChannels.erase(iterChan);                  mSamplerChannels.erase(iterChan);
431                  delete pSamplerChannel;                  delete pSamplerChannel;
432                    fireChannelCountChanged(SamplerChannels());
433                  return;                  return;
434              }              }
435          }          }
# Line 257  namespace LinuxSampler { Line 445  namespace LinuxSampler {
445          return AudioOutputDeviceFactory::AvailableDrivers();          return AudioOutputDeviceFactory::AvailableDrivers();
446      }      }
447    
448      AudioOutputDevice* Sampler::CreateAudioOutputDevice(String AudioDriver, std::map<String,String> Parameters) throw (LinuxSamplerException) {      std::vector<String> Sampler::AvailableMidiInputDrivers() {
449            return MidiInputDeviceFactory::AvailableDrivers();
450        }
451    
452        std::vector<String> Sampler::AvailableEngineTypes() {
453            return EngineFactory::AvailableEngineTypes();
454        }
455    
456        AudioOutputDevice* Sampler::CreateAudioOutputDevice(String AudioDriver, std::map<String,String> Parameters) throw (Exception) {
457          // create new device          // create new device
458          AudioOutputDevice* pDevice = AudioOutputDeviceFactory::Create(AudioDriver, Parameters);          AudioOutputDevice* pDevice = AudioOutputDeviceFactory::Create(AudioDriver, Parameters);
459    
# Line 269  namespace LinuxSampler { Line 465  namespace LinuxSampler {
465              }              }
466          }          }
467    
468            fireAudioDeviceCountChanged(AudioOutputDevices());
469          return pDevice;          return pDevice;
470      }      }
471    
# Line 288  namespace LinuxSampler { Line 485  namespace LinuxSampler {
485          return mMidiInputDevices;          return mMidiInputDevices;
486      }      }
487    
488      void Sampler::DestroyAudioOutputDevice(AudioOutputDevice* pDevice) throw (LinuxSamplerException) {      void Sampler::DestroyAudioOutputDevice(AudioOutputDevice* pDevice) throw (Exception) {
489          AudioOutputDeviceMap::iterator iter = mAudioOutputDevices.begin();          AudioOutputDeviceMap::iterator iter = mAudioOutputDevices.begin();
490          for (; iter != mAudioOutputDevices.end(); iter++) {          for (; iter != mAudioOutputDevices.end(); iter++) {
491              if (iter->second == pDevice) {              if (iter->second == pDevice) {
492                  // check if there are still sampler engines connected to this device                  // check if there are still sampler engines connected to this device
493                  for (uint i = 0; i < SamplerChannels(); i++)                  for (uint i = 0; i < SamplerChannels(); i++)
494                      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.");
495    
496                  // disable device                  // disable device
497                  pDevice->Stop();                  pDevice->Stop();
# Line 304  namespace LinuxSampler { Line 501  namespace LinuxSampler {
501    
502                  // destroy and free device from memory                  // destroy and free device from memory
503                  delete pDevice;                  delete pDevice;
504    
505                    fireAudioDeviceCountChanged(AudioOutputDevices());
506                    break;
507              }              }
508          }          }
509      }      }
510    
511      void Sampler::DestroyMidiInputDevice(MidiInputDevice* pDevice) throw (LinuxSamplerException) {      void Sampler::DestroyMidiInputDevice(MidiInputDevice* pDevice) throw (Exception) {
512          MidiInputDeviceMap::iterator iter = mMidiInputDevices.begin();          MidiInputDeviceMap::iterator iter = mMidiInputDevices.begin();
513          for (; iter != mMidiInputDevices.end(); iter++) {          for (; iter != mMidiInputDevices.end(); iter++) {
514              if (iter->second == pDevice) {              if (iter->second == pDevice) {
515                  // check if there are still sampler engines connected to this device                  // check if there are still sampler engines connected to this device
516                  for (uint i = 0; i < SamplerChannels(); i++)                  for (uint i = 0; i < SamplerChannels(); i++)
517                      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.");
518    
519                  // disable device                  // disable device
520                  pDevice->StopListen();                  pDevice->StopListen();
# Line 324  namespace LinuxSampler { Line 524  namespace LinuxSampler {
524    
525                  // destroy and free device from memory                  // destroy and free device from memory
526                  delete pDevice;                  delete pDevice;
527    
528                    fireMidiDeviceCountChanged(MidiInputDevices());
529                    break;
530              }              }
531          }          }
532      }      }
533    
534      MidiInputDevice* Sampler::CreateMidiInputDevice(String MidiDriver, std::map<String,String> Parameters) throw (LinuxSamplerException) {      MidiInputDevice* Sampler::CreateMidiInputDevice(String MidiDriver, std::map<String,String> Parameters) throw (Exception) {
535          // create new device          // create new device
536          MidiInputDevice* pDevice = MidiInputDeviceFactory::Create(MidiDriver, Parameters);          MidiInputDevice* pDevice = MidiInputDeviceFactory::Create(MidiDriver, Parameters, this);
537    
538          // add new device to the midi device list          // add new device to the midi device list
539          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 340  namespace LinuxSampler { Line 543  namespace LinuxSampler {
543                  }                  }
544          }          }
545    
546            fireMidiDeviceCountChanged(MidiInputDevices());
547          return pDevice;          return pDevice;
548      }      }
549    
550        int Sampler::GetVoiceCount() {
551            int count = 0;
552            std::set<Engine*>::iterator it = EngineFactory::EngineInstances().begin();
553    
554            for(; it != EngineFactory::EngineInstances().end(); it++) {
555                count += (*it)->VoiceCount();
556            }
557    
558            return count;
559        }
560    
561        void Sampler::Reset() {
562            // delete sampler channels
563            try {
564                while (true) {
565                        SamplerChannelMap::iterator iter = mSamplerChannels.begin();
566                        if (iter == mSamplerChannels.end()) break;
567                        RemoveSamplerChannel(iter->second);
568                }
569            }
570            catch(...) {
571                std::cerr << "Sampler::Reset(): Exception occured while trying to delete all sampler channels, exiting.\n" << std::flush;
572                exit(EXIT_FAILURE);
573            }
574    
575            // delete midi input devices
576            try {
577                while (true) {
578                        MidiInputDeviceMap::iterator iter = mMidiInputDevices.begin();
579                        if (iter == mMidiInputDevices.end()) break;
580                        DestroyMidiInputDevice(iter->second);
581                }
582            }
583            catch(...) {
584                std::cerr << "Sampler::Reset(): Exception occured while trying to delete all MIDI input devices, exiting.\n" << std::flush;
585                exit(EXIT_FAILURE);
586            }
587    
588            // delete audio output devices
589            try {
590                while (true) {
591                        AudioOutputDeviceMap::iterator iter = mAudioOutputDevices.begin();
592                        if (iter == mAudioOutputDevices.end()) break;
593                        DestroyAudioOutputDevice(iter->second);
594                }
595            }
596            catch(...) {
597                std::cerr << "Sampler::Reset(): Exception occured while trying to delete all audio output devices, exiting.\n" << std::flush;
598                exit(EXIT_FAILURE);
599            }
600    
601            // delete MIDI instrument maps
602            try {
603                MidiInstrumentMapper::RemoveAllMaps();
604            }
605            catch(...) {
606                std::cerr << "Sampler::Reset(): Exception occured while trying to delete all MIDI instrument maps, exiting.\n" << std::flush;
607                exit(EXIT_FAILURE);
608            }
609    
610            // unload all instrument editor DLLs
611            InstrumentEditorFactory::ClosePlugins();
612        }
613    
614  } // namespace LinuxSampler  } // namespace LinuxSampler
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