/[svn]/linuxsampler/trunk/src/Sampler.cpp
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revision 203 by schoenebeck, Tue Jul 13 22:44:13 2004 UTC revision 2375 by schoenebeck, Thu Oct 4 17:45:22 2012 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 - 2012 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 "common/global_private.h"
29    #include "engines/EngineFactory.h"
30    #include "engines/EngineChannelFactory.h"
31    #include "plugins/InstrumentEditorFactory.h"
32  #include "drivers/audio/AudioOutputDeviceFactory.h"  #include "drivers/audio/AudioOutputDeviceFactory.h"
33  #include "drivers/midi/MidiInputDeviceFactory.h"  #include "drivers/midi/MidiInputDeviceFactory.h"
34  #include "engines/gig/Engine.h"  #include "drivers/midi/MidiInstrumentMapper.h"
35    #include "common/Features.h"
36    #include "network/lscpserver.h"
37    
38  namespace LinuxSampler {  namespace LinuxSampler {
39    
# Line 35  namespace LinuxSampler { Line 42  namespace LinuxSampler {
42    
43      SamplerChannel::SamplerChannel(Sampler* pS) {      SamplerChannel::SamplerChannel(Sampler* pS) {
44          pSampler           = pS;          pSampler           = pS;
45          pEngine            = NULL;          pEngineChannel     = NULL;
         pMidiInputDevice   = NULL;  
46          pAudioOutputDevice = NULL;          pAudioOutputDevice = NULL;
47          midiPort           = 0;          pMidiInputDevice   = NULL;
48          midiChannel        = MidiInputDevice::MidiInputPort::midi_chan_all;          iMidiPort          = 0;
49            midiChannel        = midi_chan_all;
50          iIndex             = -1;          iIndex             = -1;
51      }      }
52    
53      SamplerChannel::~SamplerChannel() {      SamplerChannel::~SamplerChannel() {
54          if (pEngine) {          if (pEngineChannel) {
55              MidiInputDevice::MidiInputPort *pMidiInputPort = GetMidiInputDevicePort(this->midiPort);              Engine* engine = pEngineChannel->GetEngine();
56              if (pMidiInputPort) pMidiInputPort->Disconnect(pEngine);              if (pAudioOutputDevice) pAudioOutputDevice->Disconnect(engine);
57              if (pAudioOutputDevice) pAudioOutputDevice->Disconnect(pEngine);  
58              delete pEngine;              MidiInputPort* pMidiInputPort = (pEngineChannel) ? pEngineChannel->GetMidiInputPort() : __GetMidiInputDevicePort(GetMidiInputChannel());
59                if (pMidiInputPort) pMidiInputPort->Disconnect(pEngineChannel);
60                if (pEngineChannel) {
61                    if (pAudioOutputDevice) pEngineChannel->DisconnectAudioOutputDevice();
62                    EngineChannelFactory::Destroy(pEngineChannel);
63    
64                    // reconnect engine if it still exists
65                    const std::set<Engine*>& engines = EngineFactory::EngineInstances();
66                    if (engines.find(engine) != engines.end()) pAudioOutputDevice->Connect(engine);
67                }
68          }          }
69      }      }
70    
71      void SamplerChannel::LoadEngine(Engine::type_t EngineType) {      void SamplerChannel::SetEngineType(String EngineType) throw (Exception) {
72          dmsg(2,("SamplerChannel: Loading engine..."));          dmsg(2,("SamplerChannel: Assigning engine type..."));
73    
74          // create new engine          if (pEngineChannel) {
75          Engine* pNewEngine = NULL;              if (!strcasecmp(pEngineChannel->EngineName().c_str(), EngineType.c_str())) {
76          switch (EngineType) {                  dmsg(2,("OK\n"));
77              case Engine::type_gig:                  return;
78                  pNewEngine = new gig::Engine;              }
                 break;  
             default:  
                 throw LinuxSamplerException("Unknown engine type");  
79          }          }
80    
81            fireEngineToBeChanged();
82    
83            // create new engine channel
84            EngineChannel* pNewEngineChannel = EngineChannelFactory::Create(EngineType);
85            if (!pNewEngineChannel) throw Exception("Unknown engine type");
86    
87            pNewEngineChannel->SetSamplerChannel(this);
88    
89          // dereference midi input port.          // dereference midi input port.
90          MidiInputDevice::MidiInputPort *pMidiInputPort = GetMidiInputDevicePort(this->midiPort);          MidiInputPort* pMidiInputPort = __GetMidiInputDevicePort(GetMidiInputPort());
91          // disconnect old engine          midi_chan_t midiChannel = GetMidiInputChannel();
92          if (pEngine) {          // disconnect old engine channel
93              if (pMidiInputPort) pMidiInputPort->Disconnect(pEngine);          if (pEngineChannel) {
94              if (pAudioOutputDevice) pAudioOutputDevice->Disconnect(pEngine);              Engine* engine = pEngineChannel->GetEngine();
95              delete pEngine;              if (pAudioOutputDevice) pAudioOutputDevice->Disconnect(engine);
96          }  
97                if (pMidiInputPort) pMidiInputPort->Disconnect(pEngineChannel);
98                if (pAudioOutputDevice) pEngineChannel->DisconnectAudioOutputDevice();
99                EngineChannelFactory::Destroy(pEngineChannel);
100    
101                // reconnect engine if it still exists
102                const std::set<Engine*>& engines = EngineFactory::EngineInstances();
103                if (engines.find(engine) != engines.end()) pAudioOutputDevice->Connect(engine);
104            }
105    
106            // connect new engine channel
107            if (pAudioOutputDevice) {
108                pNewEngineChannel->Connect(pAudioOutputDevice);
109                pAudioOutputDevice->Connect(pNewEngineChannel->GetEngine());
110            }
111            if (pMidiInputPort) pMidiInputPort->Connect(pNewEngineChannel, midiChannel);
112            pEngineChannel = pNewEngineChannel;
113    
114            // from now on get MIDI device and port from EngineChannel object
115            this->pMidiInputDevice = NULL;
116            this->iMidiPort        = 0;
117    
118          // connect new engine          pEngineChannel->StatusChanged(true);
119          pEngine = pNewEngine;          fireEngineChanged();
         if (pMidiInputPort) pMidiInputPort->Connect(pNewEngine, this->midiChannel);  
         if (pAudioOutputDevice) pAudioOutputDevice->Connect(pNewEngine);  
120          dmsg(2,("OK\n"));          dmsg(2,("OK\n"));
121      }      }
122    
123      void SamplerChannel::SetAudioOutputDevice(AudioOutputDevice* pDevice) {      void SamplerChannel::SetAudioOutputDevice(AudioOutputDevice* pDevice) throw (Exception) {
124            if(pAudioOutputDevice == pDevice) return;
125    
126          // disconnect old device          // disconnect old device
127          if (pAudioOutputDevice && pEngine) pAudioOutputDevice->Disconnect(pEngine);          if (pAudioOutputDevice && pEngineChannel) {
128                if (!pAudioOutputDevice->isAutonomousDevice())
129                    throw Exception("The audio output device '" + pAudioOutputDevice->Driver() + "' cannot be dropped from this sampler channel!");
130    
131                Engine* engine = pEngineChannel->GetEngine();
132                pAudioOutputDevice->Disconnect(engine);
133    
134                pEngineChannel->DisconnectAudioOutputDevice();
135    
136                // reconnect engine if it still exists
137                const std::set<Engine*>& engines = EngineFactory::EngineInstances();
138                if (engines.find(engine) != engines.end()) pAudioOutputDevice->Connect(engine);
139            }
140    
141          // connect new device          // connect new device
142          pAudioOutputDevice = pDevice;          pAudioOutputDevice = pDevice;
143          if (pEngine) pAudioOutputDevice->Connect(pEngine);          if (pEngineChannel) {
144                pEngineChannel->Connect(pAudioOutputDevice);
145                pAudioOutputDevice->Connect(pEngineChannel->GetEngine());
146            }
147      }      }
148    
149      void SamplerChannel::SetMidiInputDevice(MidiInputDevice* pDevice) {      void SamplerChannel::SetMidiInputDevice(MidiInputDevice* pDevice) throw (Exception) {
150         SetMidiInput(pDevice, this->midiPort, this->midiChannel);         SetMidiInput(pDevice, 0, GetMidiInputChannel());
151      }      }
152    
153      void SamplerChannel::SetMidiInputPort(int MidiPort) {      void SamplerChannel::SetMidiInputPort(int MidiPort) throw (Exception) {
154         SetMidiInput(pMidiInputDevice, MidiPort, this->midiChannel);         SetMidiInput(GetMidiInputDevice(), MidiPort, GetMidiInputChannel());
155      }      }
156    
157      void SamplerChannel::SetMidiInputChannel(MidiInputDevice::MidiInputPort::midi_chan_t MidiChannel) {      void SamplerChannel::SetMidiInputChannel(midi_chan_t MidiChannel) {
158         SetMidiInput(pMidiInputDevice, this->midiPort, MidiChannel);         SetMidiInput(GetMidiInputDevice(), GetMidiInputPort(), MidiChannel);
159      }      }
160    
161      void SamplerChannel::SetMidiInput(MidiInputDevice* pDevice, int MidiPort, MidiInputDevice::MidiInputPort::midi_chan_t MidiChannel) {      void SamplerChannel::SetMidiInput(MidiInputDevice* pDevice, int iMidiPort, midi_chan_t MidiChannel) throw (Exception) {
162          // dereference old midi input port.          if (!pDevice) throw Exception("No MIDI input device assigned.");
163          MidiInputDevice::MidiInputPort *pMidiInputPort = GetMidiInputDevicePort(this->midiPort);  
164            // get old and new midi input port
165            MidiInputPort* pOldMidiInputPort = __GetMidiInputDevicePort(GetMidiInputPort());
166            MidiInputPort* pNewMidiInputPort = pDevice->GetPort(iMidiPort);
167    
168          // disconnect old device port          // disconnect old device port
169          if (pMidiInputPort && pEngine) pMidiInputPort->Disconnect(pEngine);          if (pOldMidiInputPort && pEngineChannel) {
170          // new device, port and channel              MidiInputDevice* pOldDevice = pOldMidiInputPort->GetDevice();
171          pMidiInputDevice = pDevice;              if (pOldMidiInputPort != pNewMidiInputPort &&
172          this->midiPort = MidiPort;                  pOldDevice && !pOldDevice->isAutonomousDevice()
173          this->midiChannel = MidiChannel;              ) throw Exception("The MIDI input port '" + pOldDevice->Driver() + "' cannot be altered on this sampler channel!");
174    
175                pOldMidiInputPort->Disconnect(pEngineChannel);
176            }
177    
178            // remember new device, port and channel if not engine channel yet created
179            if (!pEngineChannel) {
180                this->pMidiInputDevice = pDevice;
181                this->iMidiPort        = iMidiPort;
182                this->midiChannel      = MidiChannel;
183            }
184    
185          // connect new device port          // connect new device port
186          pMidiInputPort = GetMidiInputDevicePort(this->midiPort);          if (pNewMidiInputPort && pEngineChannel) pNewMidiInputPort->Connect(pEngineChannel, MidiChannel);
         if (pMidiInputPort && pEngine) pMidiInputPort->Connect(pEngine, MidiChannel);  
187          // Ooops.          // Ooops.
188          if (pMidiInputPort == NULL)          if (pNewMidiInputPort == NULL)
189              throw LinuxSamplerException("There is no MIDI input port with index " + ToString(MidiPort) + ".");              throw Exception("There is no MIDI input port with index " + ToString(iMidiPort) + ".");
190      }      }
191    
192      Engine* SamplerChannel::GetEngine() {      EngineChannel* SamplerChannel::GetEngineChannel() {
193          return pEngine;          return pEngineChannel;
194      }      }
195    
196      MidiInputDevice::MidiInputPort::midi_chan_t SamplerChannel::GetMidiInputChannel() {      midi_chan_t SamplerChannel::GetMidiInputChannel() {
197            if (pEngineChannel) this->midiChannel = pEngineChannel->MidiChannel();
198          return this->midiChannel;          return this->midiChannel;
199      }      }
200    
201      int SamplerChannel::GetMidiInputPort() {      int SamplerChannel::GetMidiInputPort() {
202          MidiInputDevice::MidiInputPort *pMidiInputPort = GetMidiInputDevicePort(this->midiPort);          MidiInputPort* pMidiInputPort = (pEngineChannel) ? pEngineChannel->GetMidiInputPort() : NULL;
203          return (pMidiInputPort ? (int) pMidiInputPort->GetPortNumber() : -1);          if (pMidiInputPort) this->iMidiPort = (int) pMidiInputPort->GetPortNumber();
204            return iMidiPort;
205      }      }
206    
207      AudioOutputDevice* SamplerChannel::GetAudioOutputDevice() {      AudioOutputDevice* SamplerChannel::GetAudioOutputDevice() {
# Line 136  namespace LinuxSampler { Line 209  namespace LinuxSampler {
209      }      }
210    
211      MidiInputDevice* SamplerChannel::GetMidiInputDevice() {      MidiInputDevice* SamplerChannel::GetMidiInputDevice() {
212            if (pEngineChannel)
213                pMidiInputDevice = (pEngineChannel->GetMidiInputPort()) ? pEngineChannel->GetMidiInputPort()->GetDevice() : NULL;
214          return pMidiInputDevice;          return pMidiInputDevice;
215      }      }
216    
217      uint SamplerChannel::Index() {      uint SamplerChannel::Index() {
218          if (iIndex >= 0) return iIndex;          if (iIndex >= 0) return iIndex;
219    
220          std::vector<SamplerChannel*>::iterator iter = pSampler->vSamplerChannels.begin();          Sampler::SamplerChannelMap::iterator iter = pSampler->mSamplerChannels.begin();
221          for (int i = 0; iter != pSampler->vSamplerChannels.end(); i++, iter++) {          for (; iter != pSampler->mSamplerChannels.end(); iter++) {
222              if (*iter == this) {              if (iter->second == this) {
223                  iIndex = i;                  iIndex = iter->first;
224                  return i;                  return iIndex;
225              }              }
226          }          }
227    
228          throw LinuxSamplerException("SamplerChannel index not found");          throw Exception("Internal error: SamplerChannel index not found");
229      }      }
230    
231      MidiInputDevice::MidiInputPort* SamplerChannel::GetMidiInputDevicePort(int MidiPort) {      Sampler* SamplerChannel::GetSampler() {
232          MidiInputDevice::MidiInputPort *pMidiInputPort = NULL;          return pSampler;
233        }
234    
235        void SamplerChannel::AddEngineChangeListener(EngineChangeListener* l) {
236            llEngineChangeListeners.AddListener(l);
237        }
238    
239        void SamplerChannel::RemoveEngineChangeListener(EngineChangeListener* l) {
240           llEngineChangeListeners.RemoveListener(l);
241        }
242    
243        void SamplerChannel::RemoveAllEngineChangeListeners() {
244           llEngineChangeListeners.RemoveAllListeners();
245        }
246    
247        void SamplerChannel::fireEngineToBeChanged() {
248            for (int i = 0; i < llEngineChangeListeners.GetListenerCount(); i++) {
249                llEngineChangeListeners.GetListener(i)->EngineToBeChanged(Index());
250            }
251        }
252    
253        void SamplerChannel::fireEngineChanged() {
254            for (int i = 0; i < llEngineChangeListeners.GetListenerCount(); i++) {
255                llEngineChangeListeners.GetListener(i)->EngineChanged(Index());
256            }
257        }
258    
259        MidiInputPort* SamplerChannel::__GetMidiInputDevicePort(int iMidiPort) {
260            MidiInputPort* pMidiInputPort = NULL;
261            MidiInputDevice* pMidiInputDevice = GetMidiInputDevice();
262          if (pMidiInputDevice)          if (pMidiInputDevice)
263              pMidiInputPort = pMidiInputDevice->GetPort(MidiPort);              pMidiInputPort = pMidiInputDevice->GetPort(iMidiPort);
264          return pMidiInputPort;          return pMidiInputPort;
265      }      }
266    
267    
268    
269      // ******************************************************************      // ******************************************************************
270      // * Sampler      // * Sampler
271    
272      Sampler::Sampler() {      Sampler::Sampler() {
273            eventHandler.SetSampler(this);
274            uiOldTotalVoiceCount = uiOldTotalStreamCount = 0;
275      }      }
276    
277      Sampler::~Sampler() {      Sampler::~Sampler() {
278          // delete sampler channels          Reset();
279          {      }
280              std::vector<SamplerChannel*>::iterator iter = vSamplerChannels.begin();  
281              for (; iter != vSamplerChannels.end(); iter++) delete *iter;      uint Sampler::SamplerChannels() {
282            return mSamplerChannels.size();
283        }
284    
285        void Sampler::AddChannelCountListener(ChannelCountListener* l) {
286            llChannelCountListeners.AddListener(l);
287        }
288    
289        void Sampler::RemoveChannelCountListener(ChannelCountListener* l) {
290           llChannelCountListeners.RemoveListener(l);
291        }
292    
293        void Sampler::fireChannelCountChanged(int NewCount) {
294            for (int i = 0; i < llChannelCountListeners.GetListenerCount(); i++) {
295                llChannelCountListeners.GetListener(i)->ChannelCountChanged(NewCount);
296          }          }
297        }
298    
299          // delete midi input devices      void Sampler::fireChannelAdded(SamplerChannel* pChannel) {
300          {          for (int i = 0; i < llChannelCountListeners.GetListenerCount(); i++) {
301              MidiInputDeviceMap::iterator iter = mMidiInputDevices.begin();              llChannelCountListeners.GetListener(i)->ChannelAdded(pChannel);
             for (; iter != mMidiInputDevices.end(); iter++) {  
                 MidiInputDevice* pDevice = iter->second;  
                 pDevice->StopListen();  
                 delete pDevice;  
             }  
302          }          }
303        }
304    
305          // delete audio output devices      void Sampler::fireChannelToBeRemoved(SamplerChannel* pChannel) {
306          {          for (int i = 0; i < llChannelCountListeners.GetListenerCount(); i++) {
307              AudioOutputDeviceMap::iterator iter = mAudioOutputDevices.begin();              llChannelCountListeners.GetListener(i)->ChannelToBeRemoved(pChannel);
             for (; iter != mAudioOutputDevices.end(); iter++) {  
                 AudioOutputDevice* pDevice = iter->second;  
                 pDevice->Stop();  
                 delete pDevice;  
             }  
308          }          }
309      }      }
310    
311      uint Sampler::SamplerChannels() {      void Sampler::AddAudioDeviceCountListener(AudioDeviceCountListener* l) {
312          return vSamplerChannels.size();          llAudioDeviceCountListeners.AddListener(l);
313        }
314    
315        void Sampler::RemoveAudioDeviceCountListener(AudioDeviceCountListener* l) {
316            llAudioDeviceCountListeners.RemoveListener(l);
317        }
318    
319        void Sampler::fireAudioDeviceCountChanged(int NewCount) {
320            for (int i = 0; i < llAudioDeviceCountListeners.GetListenerCount(); i++) {
321                llAudioDeviceCountListeners.GetListener(i)->AudioDeviceCountChanged(NewCount);
322            }
323        }
324    
325        void Sampler::AddMidiDeviceCountListener(MidiDeviceCountListener* l) {
326            llMidiDeviceCountListeners.AddListener(l);
327      }      }
328    
329        void Sampler::RemoveMidiDeviceCountListener(MidiDeviceCountListener* l) {
330            llMidiDeviceCountListeners.RemoveListener(l);
331        }
332    
333        void Sampler::fireMidiDeviceCountChanged(int NewCount) {
334            for (int i = 0; i < llMidiDeviceCountListeners.GetListenerCount(); i++) {
335                llMidiDeviceCountListeners.GetListener(i)->MidiDeviceCountChanged(NewCount);
336            }
337        }
338    
339        void Sampler::fireMidiDeviceToBeDestroyed(MidiInputDevice* pDevice) {
340            for (int i = 0; i < llMidiDeviceCountListeners.GetListenerCount(); i++) {
341                llMidiDeviceCountListeners.GetListener(i)->MidiDeviceToBeDestroyed(pDevice);
342            }
343        }
344    
345        void Sampler::fireMidiDeviceCreated(MidiInputDevice* pDevice) {
346            for (int i = 0; i < llMidiDeviceCountListeners.GetListenerCount(); i++) {
347                llMidiDeviceCountListeners.GetListener(i)->MidiDeviceCreated(pDevice);
348            }
349        }
350    
351        void Sampler::AddVoiceCountListener(VoiceCountListener* l) {
352            llVoiceCountListeners.AddListener(l);
353        }
354    
355        void Sampler::RemoveVoiceCountListener(VoiceCountListener* l) {
356            llVoiceCountListeners.RemoveListener(l);
357        }
358    
359        void Sampler::fireVoiceCountChanged(int ChannelId, int NewCount) {
360            std::map<uint, uint>::iterator it = mOldVoiceCounts.find(ChannelId);
361            if (it != mOldVoiceCounts.end()) {
362                uint oldCount = it->second;
363                if (NewCount == oldCount) return;
364            }
365    
366            mOldVoiceCounts[ChannelId] = NewCount;
367    
368            for (int i = 0; i < llVoiceCountListeners.GetListenerCount(); i++) {
369                llVoiceCountListeners.GetListener(i)->VoiceCountChanged(ChannelId, NewCount);
370            }
371        }
372    
373        void Sampler::AddStreamCountListener(StreamCountListener* l) {
374            llStreamCountListeners.AddListener(l);
375        }
376    
377        void Sampler::RemoveStreamCountListener(StreamCountListener* l) {
378            llStreamCountListeners.RemoveListener(l);
379        }
380    
381        void Sampler::fireStreamCountChanged(int ChannelId, int NewCount) {
382            std::map<uint, uint>::iterator it = mOldStreamCounts.find(ChannelId);
383            if (it != mOldStreamCounts.end()) {
384                uint oldCount = it->second;
385                if (NewCount == oldCount) return;
386            }
387    
388            mOldStreamCounts[ChannelId] = NewCount;
389    
390            for (int i = 0; i < llStreamCountListeners.GetListenerCount(); i++) {
391                llStreamCountListeners.GetListener(i)->StreamCountChanged(ChannelId, NewCount);
392            }
393        }
394    
395        void Sampler::AddBufferFillListener(BufferFillListener* l) {
396            llBufferFillListeners.AddListener(l);
397        }
398    
399        void Sampler::RemoveBufferFillListener(BufferFillListener* l) {
400            llBufferFillListeners.RemoveListener(l);
401        }
402    
403        void Sampler::fireBufferFillChanged(int ChannelId, String FillData) {
404            for (int i = 0; i < llBufferFillListeners.GetListenerCount(); i++) {
405                llBufferFillListeners.GetListener(i)->BufferFillChanged(ChannelId, FillData);
406            }
407        }
408    
409        void Sampler::AddTotalStreamCountListener(TotalStreamCountListener* l) {
410            llTotalStreamCountListeners.AddListener(l);
411        }
412    
413        void Sampler::RemoveTotalStreamCountListener(TotalStreamCountListener* l) {
414            llTotalStreamCountListeners.RemoveListener(l);
415        }
416    
417        void Sampler::fireTotalStreamCountChanged(int NewCount) {
418            if (NewCount == uiOldTotalStreamCount) return;
419            uiOldTotalStreamCount = NewCount;
420    
421            for (int i = 0; i < llTotalStreamCountListeners.GetListenerCount(); i++) {
422                llTotalStreamCountListeners.GetListener(i)->TotalStreamCountChanged(NewCount);
423            }
424        }
425    
426        void Sampler::AddTotalVoiceCountListener(TotalVoiceCountListener* l) {
427            llTotalVoiceCountListeners.AddListener(l);
428        }
429    
430        void Sampler::RemoveTotalVoiceCountListener(TotalVoiceCountListener* l) {
431            llTotalVoiceCountListeners.RemoveListener(l);
432        }
433    
434        void Sampler::fireTotalVoiceCountChanged(int NewCount) {
435            if (NewCount == uiOldTotalVoiceCount) return;
436            uiOldTotalVoiceCount = NewCount;
437    
438            for (int i = 0; i < llTotalVoiceCountListeners.GetListenerCount(); i++) {
439                llTotalVoiceCountListeners.GetListener(i)->TotalVoiceCountChanged(NewCount);
440            }
441        }
442    
443        void Sampler::AddFxSendCountListener(FxSendCountListener* l) {
444            llFxSendCountListeners.AddListener(l);
445        }
446    
447        void Sampler::RemoveFxSendCountListener(FxSendCountListener* l) {
448            llFxSendCountListeners.RemoveListener(l);
449        }
450    
451        void Sampler::fireFxSendCountChanged(int ChannelId, int NewCount) {
452            for (int i = 0; i < llFxSendCountListeners.GetListenerCount(); i++) {
453                llFxSendCountListeners.GetListener(i)->FxSendCountChanged(ChannelId, NewCount);
454            }
455        }
456    
457        void Sampler::EventHandler::EngineToBeChanged(int ChannelId) {
458            // nothing to do here
459        }
460    
461        void Sampler::EventHandler::EngineChanged(int ChannelId) {
462            EngineChannel* engineChannel = pSampler->GetSamplerChannel(ChannelId)->GetEngineChannel();
463            if(engineChannel == NULL) return;
464            engineChannel->AddFxSendCountListener(this);
465        }
466    
467        void Sampler::EventHandler::FxSendCountChanged(int ChannelId, int NewCount) {
468            pSampler->fireFxSendCountChanged(ChannelId, NewCount);
469        }
470    
471    
472      SamplerChannel* Sampler::AddSamplerChannel() {      SamplerChannel* Sampler::AddSamplerChannel() {
473            // if there's no sampler channel yet
474            if (!mSamplerChannels.size()) {
475                SamplerChannel* pChannel = new SamplerChannel(this);
476                mSamplerChannels[0] = pChannel;
477                fireChannelAdded(pChannel);
478                fireChannelCountChanged(1);
479                pChannel->AddEngineChangeListener(&eventHandler);
480                return pChannel;
481            }
482    
483            // get the highest used sampler channel index
484            uint lastIndex = (--(mSamplerChannels.end()))->first;
485    
486            // check if we reached the index limit
487            if (lastIndex + 1 < lastIndex) {
488                // search for an unoccupied sampler channel index starting from 0
489                for (uint i = 0; i < lastIndex; i++) {
490                    if (mSamplerChannels.find(i) != mSamplerChannels.end()) continue;
491                    // we found an unused index, so insert the new channel there
492                    SamplerChannel* pChannel = new SamplerChannel(this);
493                    mSamplerChannels[i] = pChannel;
494                    fireChannelAdded(pChannel);
495                    fireChannelCountChanged(SamplerChannels());
496                    pChannel->AddEngineChangeListener(&eventHandler);
497                    return pChannel;
498                }
499                throw Exception("Internal error: could not find unoccupied sampler channel index.");
500            }
501    
502            // we have not reached the index limit so we just add the channel past the highest index
503          SamplerChannel* pChannel = new SamplerChannel(this);          SamplerChannel* pChannel = new SamplerChannel(this);
504          vSamplerChannels.push_back(pChannel);          mSamplerChannels[lastIndex + 1] = pChannel;
505            fireChannelAdded(pChannel);
506            fireChannelCountChanged(SamplerChannels());
507            pChannel->AddEngineChangeListener(&eventHandler);
508          return pChannel;          return pChannel;
509      }      }
510    
511      SamplerChannel* Sampler::GetSamplerChannel(uint uiSamplerChannel) {      SamplerChannel* Sampler::GetSamplerChannel(uint uiSamplerChannel) {
512          if (uiSamplerChannel >= SamplerChannels()) return NULL;          return (mSamplerChannels.find(uiSamplerChannel) != mSamplerChannels.end()) ? mSamplerChannels[uiSamplerChannel] : NULL;
513          return vSamplerChannels[uiSamplerChannel];      }
514    
515        std::map<uint, SamplerChannel*> Sampler::GetSamplerChannels() {
516            return mSamplerChannels;
517      }      }
518    
519      void Sampler::RemoveSamplerChannel(SamplerChannel* pSamplerChannel) {      void Sampler::RemoveSamplerChannel(SamplerChannel* pSamplerChannel) {
520          std::vector<SamplerChannel*>::iterator iterChan = vSamplerChannels.begin();          SamplerChannelMap::iterator iterChan = mSamplerChannels.begin();
521          for (; iterChan != vSamplerChannels.end(); iterChan++) {          for (; iterChan != mSamplerChannels.end(); iterChan++) {
522              if (*iterChan == pSamplerChannel) {              if (iterChan->second == pSamplerChannel) {
523                  vSamplerChannels.erase(iterChan);                  fireChannelToBeRemoved(pSamplerChannel);
524                    mOldVoiceCounts.erase(pSamplerChannel->Index());
525                    mOldStreamCounts.erase(pSamplerChannel->Index());
526                    pSamplerChannel->RemoveAllEngineChangeListeners();
527                    mSamplerChannels.erase(iterChan);
528                  delete pSamplerChannel;                  delete pSamplerChannel;
529                    fireChannelCountChanged(SamplerChannels());
530                  return;                  return;
531              }              }
532          }          }
# Line 226  namespace LinuxSampler { Line 538  namespace LinuxSampler {
538          RemoveSamplerChannel(pChannel);          RemoveSamplerChannel(pChannel);
539      }      }
540    
541        void Sampler::RemoveAllSamplerChannels() {
542            /*
543             * In maps iterator invalidation occurs when the iterator point
544             * to the element that is being erased. So we need to copy the map
545             * by calling GetSamplerChannels() to prevent that.
546             */
547            SamplerChannelMap chns = GetSamplerChannels();
548            SamplerChannelMap::iterator iter = chns.begin();
549            for(; iter != chns.end(); iter++) {
550                RemoveSamplerChannel(iter->second);
551            }
552        }
553    
554      std::vector<String> Sampler::AvailableAudioOutputDrivers() {      std::vector<String> Sampler::AvailableAudioOutputDrivers() {
555          return AudioOutputDeviceFactory::AvailableDrivers();          return AudioOutputDeviceFactory::AvailableDrivers();
556      }      }
557    
558      AudioOutputDevice* Sampler::CreateAudioOutputDevice(String AudioDriver, std::map<String,String> Parameters) throw (LinuxSamplerException) {      std::vector<String> Sampler::AvailableMidiInputDrivers() {
559            return MidiInputDeviceFactory::AvailableDrivers();
560        }
561    
562        std::vector<String> Sampler::AvailableEngineTypes() {
563            return EngineFactory::AvailableEngineTypes();
564        }
565    
566        AudioOutputDevice* Sampler::CreateAudioOutputDevice(String AudioDriver, std::map<String,String> Parameters) throw (Exception) {
567          // create new device          // create new device
568          AudioOutputDevice* pDevice = AudioOutputDeviceFactory::Create(AudioDriver, Parameters);          AudioOutputDevice* pDevice = AudioOutputDeviceFactory::Create(AudioDriver, Parameters);
569    
570          // add new audio device to the audio device list          fireAudioDeviceCountChanged(AudioOutputDevices());
         for (uint i = 0; ; i++) { // seek for a free place starting from the beginning  
             if (!mAudioOutputDevices[i]) {  
                 mAudioOutputDevices[i] = pDevice;  
                 break;  
             }  
         }  
   
571          return pDevice;          return pDevice;
572      }      }
573    
574      uint Sampler::AudioOutputDevices() {      uint Sampler::AudioOutputDevices() {
575          return mAudioOutputDevices.size();          return AudioOutputDeviceFactory::Devices().size();
576      }      }
577    
578      uint Sampler::MidiInputDevices() {      uint Sampler::MidiInputDevices() {
579          return mMidiInputDevices.size();          return MidiInputDeviceFactory::Devices().size();
580      }      }
581    
582      std::map<uint, AudioOutputDevice*> Sampler::GetAudioOutputDevices() {      std::map<uint, AudioOutputDevice*> Sampler::GetAudioOutputDevices() {
583          return mAudioOutputDevices;          return AudioOutputDeviceFactory::Devices();
584      }      }
585    
586      std::map<uint, MidiInputDevice*> Sampler::GetMidiInputDevices() {      std::map<uint, MidiInputDevice*> Sampler::GetMidiInputDevices() {
587          return mMidiInputDevices;          return MidiInputDeviceFactory::Devices();
588      }      }
589    
590      void Sampler::DestroyAudioOutputDevice(AudioOutputDevice* pDevice) throw (LinuxSamplerException) {      void Sampler::DestroyAudioOutputDevice(AudioOutputDevice* pDevice) throw (Exception) {
591          AudioOutputDeviceMap::iterator iter = mAudioOutputDevices.begin();          if (pDevice) {
592          for (; iter != mAudioOutputDevices.end(); iter++) {              // check if there are still sampler engines connected to this device
593              if (iter->second == pDevice) {              for (SamplerChannelMap::iterator iterChan = mSamplerChannels.begin();
594                  // check if there are still sampler engines connected to this device                   iterChan != mSamplerChannels.end(); iterChan++
595                  for (uint i = 0; i < SamplerChannels(); i++)              ) if (iterChan->second->GetAudioOutputDevice() == pDevice) throw Exception("Sampler channel " + ToString(iterChan->first) + " is still connected to the audio output device.");
                     if (GetSamplerChannel(i)->GetAudioOutputDevice() == pDevice) throw LinuxSamplerException("Sampler channel " + ToString(i) + " is still connected to the audio output device.");  
596    
597                  // disable device              //TODO: should we add fireAudioDeviceToBeDestroyed() here ?
598                  pDevice->Stop();              AudioOutputDeviceFactory::Destroy(pDevice);
599                fireAudioDeviceCountChanged(AudioOutputDevices());
600            }
601        }
602    
603                  // remove device from the device list      void Sampler::DestroyAllAudioOutputDevices() throw (Exception) {
604                  mAudioOutputDevices.erase(iter);          /*
605             * In maps iterator invalidation occurs when the iterator point
606             * to the element that is being erased. So we need to copy the map
607             * by calling GetAudioOutputDevices() to prevent that.
608             */
609            std::map<uint, AudioOutputDevice*> devs = GetAudioOutputDevices();
610            std::map<uint, AudioOutputDevice*>::iterator iter = devs.begin();
611            for (; iter != devs.end(); iter++) {
612                AudioOutputDevice* pDevice = iter->second;
613    
614                  // destroy and free device from memory              // skip non-autonomous devices
615                  delete pDevice;              if (!pDevice->isAutonomousDevice()) continue;
616              }  
617                DestroyAudioOutputDevice(pDevice);
618          }          }
619      }      }
620    
621      void Sampler::DestroyMidiInputDevice(MidiInputDevice* pDevice) throw (LinuxSamplerException) {      void Sampler::DestroyMidiInputDevice(MidiInputDevice* pDevice) throw (Exception) {
622          MidiInputDeviceMap::iterator iter = mMidiInputDevices.begin();          if (pDevice) {
623          for (; iter != mMidiInputDevices.end(); iter++) {              // check if there are still sampler engines connected to this device
624              if (iter->second == pDevice) {              for (SamplerChannelMap::iterator iterChan = mSamplerChannels.begin();
625                  // check if there are still sampler engines connected to this device                   iterChan != mSamplerChannels.end(); iterChan++
626                  for (uint i = 0; i < SamplerChannels(); i++)              ) if (iterChan->second->GetMidiInputDevice() == pDevice) throw Exception("Sampler channel " + ToString(iterChan->first) + " is still connected to the midi input device.");
                     if (GetSamplerChannel(i)->GetMidiInputDevice() == pDevice) throw LinuxSamplerException("Sampler channel " + ToString(i) + " is still connected to the midi input device.");  
627    
628                  // disable device              fireMidiDeviceToBeDestroyed(pDevice);
629                  pDevice->StopListen();              MidiInputDeviceFactory::Destroy(pDevice);
630                fireMidiDeviceCountChanged(MidiInputDevices());
631            }
632        }
633    
634                  // remove device from the device list      void Sampler::DestroyAllMidiInputDevices() throw (Exception) {
635                  mMidiInputDevices.erase(iter);          /*
636             * In maps iterator invalidation occurs when the iterator point
637             * to the element that is being erased. So we need to copy the map
638             * by calling GetMidiInputDevices() to prevent that.
639             */
640            std::map<uint, MidiInputDevice*> devs = GetMidiInputDevices();
641            std::map<uint, MidiInputDevice*>::iterator iter = devs.begin();
642            for (; iter != devs.end(); iter++) {
643                MidiInputDevice* pDevice = iter->second;
644    
645                  // destroy and free device from memory              // skip non-autonomous devices
646                  delete pDevice;              if (!pDevice->isAutonomousDevice()) continue;
647              }  
648                DestroyMidiInputDevice(pDevice);
649          }          }
650      }      }
651    
652      MidiInputDevice* Sampler::CreateMidiInputDevice(String MidiDriver, std::map<String,String> Parameters) throw (LinuxSamplerException) {      MidiInputDevice* Sampler::CreateMidiInputDevice(String MidiDriver, std::map<String,String> Parameters) throw (Exception) {
653          // create new device          // create new device
654          MidiInputDevice* pDevice = MidiInputDeviceFactory::Create(MidiDriver, Parameters);          MidiInputDevice* pDevice = MidiInputDeviceFactory::Create(MidiDriver, Parameters, this);
   
         // add new device to the midi device list  
         for (uint i = 0; ; i++) { // seek for a free place starting from the beginning  
                 if (!mMidiInputDevices[i]) {  
                         mMidiInputDevices[i] = pDevice;  
                         break;  
                 }  
         }  
655    
656            fireMidiDeviceCreated(pDevice);
657            fireMidiDeviceCountChanged(MidiInputDevices());
658          return pDevice;          return pDevice;
659      }      }
660    
661        int Sampler::GetDiskStreamCount() {
662            int count = 0;
663            std::set<Engine*>::iterator it = EngineFactory::EngineInstances().begin();
664    
665            for(; it != EngineFactory::EngineInstances().end(); it++) {
666                count += (*it)->DiskStreamCount();
667            }
668    
669            return count;
670        }
671    
672        int Sampler::GetVoiceCount() {
673            int count = 0;
674            std::set<Engine*>::iterator it = EngineFactory::EngineInstances().begin();
675    
676            for(; it != EngineFactory::EngineInstances().end(); it++) {
677                count += (*it)->VoiceCount();
678            }
679    
680            return count;
681        }
682    
683        int Sampler::GetGlobalMaxVoices() {
684            return GLOBAL_MAX_VOICES; // see common/global_private.cpp
685        }
686    
687        int Sampler::GetGlobalMaxStreams() {
688            return GLOBAL_MAX_STREAMS; // see common/global_private.cpp
689        }
690    
691        void Sampler::SetGlobalMaxVoices(int n) throw (Exception) {
692            if (n < 1) throw Exception("Maximum voices may not be less than 1");
693            GLOBAL_MAX_VOICES = n; // see common/global_private.cpp
694            const std::set<Engine*>& engines = EngineFactory::EngineInstances();
695            if (engines.size() > 0) {
696                std::set<Engine*>::iterator iter = engines.begin();
697                std::set<Engine*>::iterator end  = engines.end();
698                for (; iter != end; ++iter) {
699                    (*iter)->SetMaxVoices(n);
700                }
701            }
702        }
703    
704        void Sampler::SetGlobalMaxStreams(int n) throw (Exception) {
705            if (n < 0) throw Exception("Maximum disk streams may not be negative");
706            GLOBAL_MAX_STREAMS = n; // see common/global_private.cpp
707            const std::set<Engine*>& engines = EngineFactory::EngineInstances();
708            if (engines.size() > 0) {
709                std::set<Engine*>::iterator iter = engines.begin();
710                std::set<Engine*>::iterator end  = engines.end();
711                for (; iter != end; ++iter) {
712                    (*iter)->SetMaxDiskStreams(n);
713                }
714            }
715        }
716    
717        void Sampler::Reset() {
718            // delete sampler channels
719            try {
720                RemoveAllSamplerChannels();
721            }
722            catch(...) {
723                std::cerr << "Sampler::Reset(): Exception occured while trying to delete all sampler channels, exiting.\n" << std::flush;
724                exit(EXIT_FAILURE);
725            }
726    
727            // delete midi input devices
728            try {
729                DestroyAllMidiInputDevices();
730            }
731            catch(...) {
732                std::cerr << "Sampler::Reset(): Exception occured while trying to delete all MIDI input devices, exiting.\n" << std::flush;
733                exit(EXIT_FAILURE);
734            }
735    
736            // delete audio output devices
737            try {
738                DestroyAllAudioOutputDevices();
739            }
740            catch(...) {
741                std::cerr << "Sampler::Reset(): Exception occured while trying to delete all audio output devices, exiting.\n" << std::flush;
742                exit(EXIT_FAILURE);
743            }
744    
745            // delete MIDI instrument maps
746            try {
747                MidiInstrumentMapper::RemoveAllMaps();
748            }
749            catch(...) {
750                std::cerr << "Sampler::Reset(): Exception occured while trying to delete all MIDI instrument maps, exiting.\n" << std::flush;
751                exit(EXIT_FAILURE);
752            }
753    
754            // unload all instrument editor DLLs
755            InstrumentEditorFactory::ClosePlugins();
756        }
757    
758        bool Sampler::EnableDenormalsAreZeroMode() {
759            Features::detect();
760            return Features::enableDenormalsAreZeroMode();
761        }
762    
763        void Sampler::fireStatistics() {
764            static const LSCPEvent::event_t eventsArr[] = {
765                LSCPEvent::event_voice_count, LSCPEvent::event_stream_count,
766                LSCPEvent::event_buffer_fill, LSCPEvent::event_total_voice_count
767            };
768            static const std::list<LSCPEvent::event_t> events(eventsArr, eventsArr + 4);
769    
770            if (LSCPServer::EventSubscribers(events))
771            {
772                LSCPServer::LockRTNotify();
773                std::map<uint,SamplerChannel*> channels = GetSamplerChannels();
774                std::map<uint,SamplerChannel*>::iterator iter = channels.begin();
775                for (; iter != channels.end(); iter++) {
776                    SamplerChannel* pSamplerChannel = iter->second;
777                    EngineChannel* pEngineChannel = pSamplerChannel->GetEngineChannel();
778                    if (!pEngineChannel) continue;
779                    Engine* pEngine = pEngineChannel->GetEngine();
780                    if (!pEngine) continue;
781                    fireVoiceCountChanged(iter->first, pEngineChannel->GetVoiceCount());
782                    fireStreamCountChanged(iter->first, pEngineChannel->GetDiskStreamCount());
783                    fireBufferFillChanged(iter->first, pEngine->DiskStreamBufferFillPercentage());
784                }
785    
786                fireTotalStreamCountChanged(GetDiskStreamCount());
787                fireTotalVoiceCountChanged(GetVoiceCount());
788    
789                LSCPServer::UnlockRTNotify();
790            }
791        }
792    
793    #if defined(WIN32)
794        static HINSTANCE dllInstance = NULL;
795    
796        String Sampler::GetInstallDir() {
797            char buf[MAX_PATH + 1];
798            if (GetModuleFileName(dllInstance, buf, MAX_PATH)) {
799                String s(buf);
800                size_t n = s.rfind('\\');
801                if (n != String::npos) {
802                    return s.substr(0, n);
803                }
804            }
805            return "";
806        }
807    #endif
808  } // namespace LinuxSampler  } // namespace LinuxSampler
809    
810    #if defined(WIN32)
811    extern "C" {
812        BOOL WINAPI DllMain(HINSTANCE instance, DWORD reason, LPVOID reserved)
813        {
814            switch (reason) {
815            case DLL_PROCESS_ATTACH:
816                LinuxSampler::dllInstance = instance;
817                break;
818            }
819            return TRUE;
820        }
821    }
822    #endif
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