/[svn]/linuxsampler/trunk/src/Sampler.cpp
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revision 175 by senkov, Tue Jul 6 04:41:23 2004 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 - 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 "audiodriver/AudioOutputDeviceFactory.h"  #include "engines/EngineFactory.h"
29  #include "mididriver/MidiInputDeviceFactory.h"  #include "engines/EngineChannelFactory.h"
30  #include "engines/gig/Engine.h"  #include "drivers/audio/AudioOutputDeviceFactory.h"
31    #include "drivers/midi/MidiInputDeviceFactory.h"
32    #include "drivers/midi/MidiInstrumentMapper.h"
33    #include "network/lscpserver.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          // create new engine channel
72          Engine* pNewEngine = NULL;          EngineChannel* pNewEngineChannel = EngineChannelFactory::Create(EngineType);
73          switch (EngineType) {          if (!pNewEngineChannel) throw Exception("Unknown engine type");
74              case Engine::type_gig:  
75                  pNewEngine = new gig::Engine;          //FIXME: hack to allow fast retrieval of engine channel's sampler channel index
76                  break;          pNewEngineChannel->iSamplerChannelIndex = Index();
             default:  
                 throw LinuxSamplerException("Unknown engine type");  
         }  
77    
78          // dereference midi input port.          // dereference midi input port.
79          MidiInputDevice::MidiInputPort *pMidiInputPort = GetMidiInputDevicePort(this->midiPort);          MidiInputPort* pMidiInputPort = __GetMidiInputDevicePort(GetMidiInputPort());
80          // disconnect old engine          // disconnect old engine channel
81          if (pEngine) {          if (pEngineChannel) {
82              if (pMidiInputPort) pMidiInputPort->Disconnect(pEngine);              Engine* engine = pEngineChannel->GetEngine();
83              if (pAudioOutputDevice) pAudioOutputDevice->Disconnect(pEngine);              if (pAudioOutputDevice) pAudioOutputDevice->Disconnect(engine);
84              delete pEngine;  
85          }              if (pMidiInputPort) pMidiInputPort->Disconnect(pEngineChannel);
86                if (pAudioOutputDevice) pEngineChannel->DisconnectAudioOutputDevice();
87                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
95            if (pAudioOutputDevice) {
96                pNewEngineChannel->Connect(pAudioOutputDevice);
97                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    
         // connect new engine  
         pEngine = pNewEngine;  
         if (pMidiInputPort) pMidiInputPort->Connect(pNewEngine, this->midiChannel);  
         if (pAudioOutputDevice) pAudioOutputDevice->Connect(pNewEngine);  
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 && pEngine) pAudioOutputDevice->Disconnect(pEngine);          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 (pEngine) pAudioOutputDevice->Connect(pEngine);          if (pEngineChannel) {
129                pEngineChannel->Connect(pAudioOutputDevice);
130                pAudioOutputDevice->Connect(pEngineChannel->GetEngine());
131            }
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(MidiInputDevice::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 MidiPort, MidiInputDevice::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          MidiInputDevice::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 && pEngine) pMidiInputPort->Disconnect(pEngine);          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 = MidiPort;              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 && pEngine) pMidiInputPort->Connect(pEngine, MidiChannel);  
164          // Ooops.          // Ooops.
165          if (pMidiInputPort == NULL)          if (pNewMidiInputPort == NULL)
166              throw LinuxSamplerException("There is no MIDI input port with index " + ToString(MidiPort) + ".");              throw Exception("There is no MIDI input port with index " + ToString(iMidiPort) + ".");
167      }      }
168    
169      Engine* SamplerChannel::GetEngine() {      EngineChannel* SamplerChannel::GetEngineChannel() {
170          return pEngine;          return pEngineChannel;
171      }      }
172    
173      MidiInputDevice::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          MidiInputDevice::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 136  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    
194      uint SamplerChannel::Index() {      uint SamplerChannel::Index() {
195          if (iIndex >= 0) return iIndex;          if (iIndex >= 0) return iIndex;
196    
197          std::vector<SamplerChannel*>::iterator iter = pSampler->vSamplerChannels.begin();          Sampler::SamplerChannelMap::iterator iter = pSampler->mSamplerChannels.begin();
198          for (int i = 0; iter != pSampler->vSamplerChannels.end(); i++, iter++) {          for (; iter != pSampler->mSamplerChannels.end(); iter++) {
199              if (*iter == this) {              if (iter->second == this) {
200                  iIndex = i;                  iIndex = iter->first;
201                  return i;                  return iIndex;
202              }              }
203          }          }
204    
205          throw LinuxSamplerException("SamplerChannel index not found");          throw Exception("Internal error: SamplerChannel index not found");
206      }      }
207    
208      MidiInputDevice::MidiInputPort* SamplerChannel::GetMidiInputDevicePort(int MidiPort) {      MidiInputPort* SamplerChannel::__GetMidiInputDevicePort(int iMidiPort) {
209          MidiInputDevice::MidiInputPort *pMidiInputPort = NULL;          MidiInputPort* pMidiInputPort = NULL;
210            MidiInputDevice* pMidiInputDevice = GetMidiInputDevice();
211          if (pMidiInputDevice)          if (pMidiInputDevice)
212              pMidiInputPort = pMidiInputDevice->GetPort(MidiPort);              pMidiInputPort = pMidiInputDevice->GetPort(iMidiPort);
213          return pMidiInputPort;          return pMidiInputPort;
214      }      }
215    
216    
217    
218      // ******************************************************************      // ******************************************************************
219      // * Sampler      // * Sampler
220    
# Line 167  namespace LinuxSampler { Line 222  namespace LinuxSampler {
222      }      }
223    
224      Sampler::~Sampler() {      Sampler::~Sampler() {
225          // delete sampler channels          Reset();
         {  
             std::vector<SamplerChannel*>::iterator iter = vSamplerChannels.begin();  
             for (; iter != vSamplerChannels.end(); iter++) delete *iter;  
         }  
   
         // delete midi input devices  
         {  
             MidiInputDeviceMap::iterator iter = mMidiInputDevices.begin();  
             for (; iter != mMidiInputDevices.end(); iter++) {  
                 MidiInputDevice* pDevice = iter->second;  
                 pDevice->StopListen();  
                 delete pDevice;  
             }  
         }  
   
         // delete audio output devices  
         {  
             AudioOutputDeviceMap::iterator iter = mAudioOutputDevices.begin();  
             for (; iter != mAudioOutputDevices.end(); iter++) {  
                 AudioOutputDevice* pDevice = iter->second;  
                 pDevice->Stop();  
                 delete pDevice;  
             }  
         }  
226      }      }
227    
228      uint Sampler::SamplerChannels() {      uint Sampler::SamplerChannels() {
229          return vSamplerChannels.size();          return mSamplerChannels.size();
230      }      }
231    
232      SamplerChannel* Sampler::AddSamplerChannel() {      SamplerChannel* Sampler::AddSamplerChannel() {
233            // if there's no sampler channel yet
234            if (!mSamplerChannels.size()) {
235                SamplerChannel* pChannel = new SamplerChannel(this);
236                mSamplerChannels[0] = pChannel;
237                LSCPServer::SendLSCPNotify(LSCPEvent(LSCPEvent::event_channel_count, 1));
238                return pChannel;
239            }
240    
241            // get the highest used sampler channel index
242            uint lastIndex = (--(mSamplerChannels.end()))->first;
243    
244            // check if we reached the index limit
245            if (lastIndex + 1 < lastIndex) {
246                // search for an unoccupied sampler channel index starting from 0
247                for (uint i = 0; i < lastIndex; i++) {
248                    if (mSamplerChannels.find(i) != mSamplerChannels.end()) continue;
249                    // we found an unused index, so insert the new channel there
250                    SamplerChannel* pChannel = new SamplerChannel(this);
251                    mSamplerChannels[i] = pChannel;
252                    LSCPServer::SendLSCPNotify(LSCPEvent(LSCPEvent::event_channel_count, i));
253                    return pChannel;
254                }
255                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
259          SamplerChannel* pChannel = new SamplerChannel(this);          SamplerChannel* pChannel = new SamplerChannel(this);
260          vSamplerChannels.push_back(pChannel);          mSamplerChannels[lastIndex + 1] = pChannel;
261            LSCPServer::SendLSCPNotify(LSCPEvent(LSCPEvent::event_channel_count, lastIndex + 1));
262          return pChannel;          return pChannel;
263      }      }
264    
265      SamplerChannel* Sampler::GetSamplerChannel(uint uiSamplerChannel) {      SamplerChannel* Sampler::GetSamplerChannel(uint uiSamplerChannel) {
266          if (uiSamplerChannel >= SamplerChannels()) return NULL;          return (mSamplerChannels.find(uiSamplerChannel) != mSamplerChannels.end()) ? mSamplerChannels[uiSamplerChannel] : NULL;
267          return vSamplerChannels[uiSamplerChannel];      }
268    
269        std::map<uint, SamplerChannel*> Sampler::GetSamplerChannels() {
270            return mSamplerChannels;
271      }      }
272    
273      void Sampler::RemoveSamplerChannel(SamplerChannel* pSamplerChannel) {      void Sampler::RemoveSamplerChannel(SamplerChannel* pSamplerChannel) {
274          std::vector<SamplerChannel*>::iterator iterChan = vSamplerChannels.begin();          SamplerChannelMap::iterator iterChan = mSamplerChannels.begin();
275          for (; iterChan != vSamplerChannels.end(); iterChan++) {          for (; iterChan != mSamplerChannels.end(); iterChan++) {
276              if (*iterChan == pSamplerChannel) {              if (iterChan->second == pSamplerChannel) {
277                  vSamplerChannels.erase(iterChan);                  mSamplerChannels.erase(iterChan);
278                  delete pSamplerChannel;                  delete pSamplerChannel;
279                    LSCPServer::SendLSCPNotify(LSCPEvent(LSCPEvent::event_channel_count, mSamplerChannels.size()));
280                  return;                  return;
281              }              }
282          }          }
# Line 230  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 242  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 261  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 277  namespace LinuxSampler { Line 348  namespace LinuxSampler {
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          }          }
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 297  namespace LinuxSampler { Line 371  namespace LinuxSampler {
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          }          }
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);          MidiInputDevice* pDevice = MidiInputDeviceFactory::Create(MidiDriver, Parameters, this);
384    
385          // add new device to the midi device list          // add new device to the midi device list
386          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 313  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    
397        int Sampler::GetVoiceCount() {
398            int count = 0;
399            std::set<Engine*>::iterator it = EngineFactory::EngineInstances().begin();
400    
401            for(; it != EngineFactory::EngineInstances().end(); it++) {
402                count += (*it)->VoiceCount();
403            }
404    
405            return count;
406        }
407    
408        void Sampler::Reset() {
409            // delete sampler channels
410            try {
411                while (true) {
412                        SamplerChannelMap::iterator iter = mSamplerChannels.begin();
413                        if (iter == mSamplerChannels.end()) break;
414                        RemoveSamplerChannel(iter->second);
415                }
416            }
417            catch(...) {
418                std::cerr << "Sampler::Reset(): Exception occured while trying to delete all sampler channels, exiting.\n" << std::flush;
419                exit(EXIT_FAILURE);
420            }
421    
422            // delete midi input devices
423            try {
424                while (true) {
425                        MidiInputDeviceMap::iterator iter = mMidiInputDevices.begin();
426                        if (iter == mMidiInputDevices.end()) break;
427                        DestroyMidiInputDevice(iter->second);
428                }
429            }
430            catch(...) {
431                std::cerr << "Sampler::Reset(): Exception occured while trying to delete all MIDI input devices, exiting.\n" << std::flush;
432                exit(EXIT_FAILURE);
433            }
434    
435            // delete audio output devices
436            try {
437                while (true) {
438                        AudioOutputDeviceMap::iterator iter = mAudioOutputDevices.begin();
439                        if (iter == mAudioOutputDevices.end()) break;
440                        DestroyAudioOutputDevice(iter->second);
441                }
442            }
443            catch(...) {
444                std::cerr << "Sampler::Reset(): Exception occured while trying to delete all audio output devices, exiting.\n" << std::flush;
445                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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