/[svn]/linuxsampler/trunk/src/Sampler.cpp
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revision 203 by schoenebeck, Tue Jul 13 22:44:13 2004 UTC revision 1934 by schoenebeck, Sun Jul 12 10:35:55 2009 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 - 2009 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          // disconnect old engine channel
92          if (pEngine) {          if (pEngineChannel) {
93              if (pMidiInputPort) pMidiInputPort->Disconnect(pEngine);              Engine* engine = pEngineChannel->GetEngine();
94              if (pAudioOutputDevice) pAudioOutputDevice->Disconnect(pEngine);              if (pAudioOutputDevice) pAudioOutputDevice->Disconnect(engine);
95              delete pEngine;  
96          }              if (pMidiInputPort) pMidiInputPort->Disconnect(pEngineChannel);
97                if (pAudioOutputDevice) pEngineChannel->DisconnectAudioOutputDevice();
98                EngineChannelFactory::Destroy(pEngineChannel);
99    
100                // reconnect engine if it still exists
101                const std::set<Engine*>& engines = EngineFactory::EngineInstances();
102                if (engines.find(engine) != engines.end()) pAudioOutputDevice->Connect(engine);
103            }
104    
105            // connect new engine channel
106            if (pAudioOutputDevice) {
107                pNewEngineChannel->Connect(pAudioOutputDevice);
108                pAudioOutputDevice->Connect(pNewEngineChannel->GetEngine());
109            }
110            if (pMidiInputPort) pMidiInputPort->Connect(pNewEngineChannel, GetMidiInputChannel());
111            pEngineChannel = pNewEngineChannel;
112    
113            // from now on get MIDI device and port from EngineChannel object
114            this->pMidiInputDevice = NULL;
115            this->iMidiPort        = 0;
116    
117          // connect new engine          pEngineChannel->StatusChanged(true);
118          pEngine = pNewEngine;          fireEngineChanged();
         if (pMidiInputPort) pMidiInputPort->Connect(pNewEngine, this->midiChannel);  
         if (pAudioOutputDevice) pAudioOutputDevice->Connect(pNewEngine);  
119          dmsg(2,("OK\n"));          dmsg(2,("OK\n"));
120      }      }
121    
122      void SamplerChannel::SetAudioOutputDevice(AudioOutputDevice* pDevice) {      void SamplerChannel::SetAudioOutputDevice(AudioOutputDevice* pDevice) {
123            if(pAudioOutputDevice == pDevice) return;
124    
125          // disconnect old device          // disconnect old device
126          if (pAudioOutputDevice && pEngine) pAudioOutputDevice->Disconnect(pEngine);          if (pAudioOutputDevice && pEngineChannel) {
127                Engine* engine = pEngineChannel->GetEngine();
128                pAudioOutputDevice->Disconnect(engine);
129    
130                pEngineChannel->DisconnectAudioOutputDevice();
131    
132                // reconnect engine if it still exists
133                const std::set<Engine*>& engines = EngineFactory::EngineInstances();
134                if (engines.find(engine) != engines.end()) pAudioOutputDevice->Connect(engine);
135            }
136    
137          // connect new device          // connect new device
138          pAudioOutputDevice = pDevice;          pAudioOutputDevice = pDevice;
139          if (pEngine) pAudioOutputDevice->Connect(pEngine);          if (pEngineChannel) {
140                pEngineChannel->Connect(pAudioOutputDevice);
141                pAudioOutputDevice->Connect(pEngineChannel->GetEngine());
142            }
143      }      }
144    
145      void SamplerChannel::SetMidiInputDevice(MidiInputDevice* pDevice) {      void SamplerChannel::SetMidiInputDevice(MidiInputDevice* pDevice) {
146         SetMidiInput(pDevice, this->midiPort, this->midiChannel);         SetMidiInput(pDevice, 0, GetMidiInputChannel());
147      }      }
148    
149      void SamplerChannel::SetMidiInputPort(int MidiPort) {      void SamplerChannel::SetMidiInputPort(int MidiPort) {
150         SetMidiInput(pMidiInputDevice, MidiPort, this->midiChannel);         SetMidiInput(GetMidiInputDevice(), MidiPort, GetMidiInputChannel());
151      }      }
152    
153      void SamplerChannel::SetMidiInputChannel(MidiInputDevice::MidiInputPort::midi_chan_t MidiChannel) {      void SamplerChannel::SetMidiInputChannel(midi_chan_t MidiChannel) {
154         SetMidiInput(pMidiInputDevice, this->midiPort, MidiChannel);         SetMidiInput(GetMidiInputDevice(), GetMidiInputPort(), MidiChannel);
155      }      }
156    
157      void SamplerChannel::SetMidiInput(MidiInputDevice* pDevice, int MidiPort, MidiInputDevice::MidiInputPort::midi_chan_t MidiChannel) {      void SamplerChannel::SetMidiInput(MidiInputDevice* pDevice, int iMidiPort, midi_chan_t MidiChannel) {
158          // dereference old midi input port.          if (!pDevice) throw Exception("No MIDI input device assigned.");
159          MidiInputDevice::MidiInputPort *pMidiInputPort = GetMidiInputDevicePort(this->midiPort);  
160            // get old and new midi input port
161            MidiInputPort* pOldMidiInputPort = __GetMidiInputDevicePort(GetMidiInputPort());
162            MidiInputPort* pNewMidiInputPort = pDevice->GetPort(iMidiPort);
163    
164          // disconnect old device port          // disconnect old device port
165          if (pMidiInputPort && pEngine) pMidiInputPort->Disconnect(pEngine);          if (pOldMidiInputPort && pEngineChannel) pOldMidiInputPort->Disconnect(pEngineChannel);
166          // new device, port and channel          // remember new device, port and channel if not engine channel yet created
167          pMidiInputDevice = pDevice;          if (!pEngineChannel) {
168          this->midiPort = MidiPort;              this->pMidiInputDevice = pDevice;
169          this->midiChannel = MidiChannel;              this->iMidiPort        = iMidiPort;
170                this->midiChannel      = MidiChannel;
171            }
172    
173          // connect new device port          // connect new device port
174          pMidiInputPort = GetMidiInputDevicePort(this->midiPort);          if (pNewMidiInputPort && pEngineChannel) pNewMidiInputPort->Connect(pEngineChannel, MidiChannel);
         if (pMidiInputPort && pEngine) pMidiInputPort->Connect(pEngine, MidiChannel);  
175          // Ooops.          // Ooops.
176          if (pMidiInputPort == NULL)          if (pNewMidiInputPort == NULL)
177              throw LinuxSamplerException("There is no MIDI input port with index " + ToString(MidiPort) + ".");              throw Exception("There is no MIDI input port with index " + ToString(iMidiPort) + ".");
178      }      }
179    
180      Engine* SamplerChannel::GetEngine() {      EngineChannel* SamplerChannel::GetEngineChannel() {
181          return pEngine;          return pEngineChannel;
182      }      }
183    
184      MidiInputDevice::MidiInputPort::midi_chan_t SamplerChannel::GetMidiInputChannel() {      midi_chan_t SamplerChannel::GetMidiInputChannel() {
185            if (pEngineChannel) this->midiChannel = pEngineChannel->MidiChannel();
186          return this->midiChannel;          return this->midiChannel;
187      }      }
188    
189      int SamplerChannel::GetMidiInputPort() {      int SamplerChannel::GetMidiInputPort() {
190          MidiInputDevice::MidiInputPort *pMidiInputPort = GetMidiInputDevicePort(this->midiPort);          MidiInputPort* pMidiInputPort = (pEngineChannel) ? pEngineChannel->GetMidiInputPort() : NULL;
191          return (pMidiInputPort ? (int) pMidiInputPort->GetPortNumber() : -1);          if (pMidiInputPort) this->iMidiPort = (int) pMidiInputPort->GetPortNumber();
192            return iMidiPort;
193      }      }
194    
195      AudioOutputDevice* SamplerChannel::GetAudioOutputDevice() {      AudioOutputDevice* SamplerChannel::GetAudioOutputDevice() {
# Line 136  namespace LinuxSampler { Line 197  namespace LinuxSampler {
197      }      }
198    
199      MidiInputDevice* SamplerChannel::GetMidiInputDevice() {      MidiInputDevice* SamplerChannel::GetMidiInputDevice() {
200            if (pEngineChannel)
201                pMidiInputDevice = (pEngineChannel->GetMidiInputPort()) ? pEngineChannel->GetMidiInputPort()->GetDevice() : NULL;
202          return pMidiInputDevice;          return pMidiInputDevice;
203      }      }
204    
205      uint SamplerChannel::Index() {      uint SamplerChannel::Index() {
206          if (iIndex >= 0) return iIndex;          if (iIndex >= 0) return iIndex;
207    
208          std::vector<SamplerChannel*>::iterator iter = pSampler->vSamplerChannels.begin();          Sampler::SamplerChannelMap::iterator iter = pSampler->mSamplerChannels.begin();
209          for (int i = 0; iter != pSampler->vSamplerChannels.end(); i++, iter++) {          for (; iter != pSampler->mSamplerChannels.end(); iter++) {
210              if (*iter == this) {              if (iter->second == this) {
211                  iIndex = i;                  iIndex = iter->first;
212                  return i;                  return iIndex;
213              }              }
214          }          }
215    
216          throw LinuxSamplerException("SamplerChannel index not found");          throw Exception("Internal error: SamplerChannel index not found");
217        }
218    
219        Sampler* SamplerChannel::GetSampler() {
220            return pSampler;
221        }
222    
223        void SamplerChannel::AddEngineChangeListener(EngineChangeListener* l) {
224            llEngineChangeListeners.AddListener(l);
225        }
226    
227        void SamplerChannel::RemoveEngineChangeListener(EngineChangeListener* l) {
228           llEngineChangeListeners.RemoveListener(l);
229        }
230    
231        void SamplerChannel::RemoveAllEngineChangeListeners() {
232           llEngineChangeListeners.RemoveAllListeners();
233        }
234    
235        void SamplerChannel::fireEngineToBeChanged() {
236            for (int i = 0; i < llEngineChangeListeners.GetListenerCount(); i++) {
237                llEngineChangeListeners.GetListener(i)->EngineToBeChanged(Index());
238            }
239        }
240    
241        void SamplerChannel::fireEngineChanged() {
242            for (int i = 0; i < llEngineChangeListeners.GetListenerCount(); i++) {
243                llEngineChangeListeners.GetListener(i)->EngineChanged(Index());
244            }
245      }      }
246    
247      MidiInputDevice::MidiInputPort* SamplerChannel::GetMidiInputDevicePort(int MidiPort) {      MidiInputPort* SamplerChannel::__GetMidiInputDevicePort(int iMidiPort) {
248          MidiInputDevice::MidiInputPort *pMidiInputPort = NULL;          MidiInputPort* pMidiInputPort = NULL;
249            MidiInputDevice* pMidiInputDevice = GetMidiInputDevice();
250          if (pMidiInputDevice)          if (pMidiInputDevice)
251              pMidiInputPort = pMidiInputDevice->GetPort(MidiPort);              pMidiInputPort = pMidiInputDevice->GetPort(iMidiPort);
252          return pMidiInputPort;          return pMidiInputPort;
253      }      }
254    
255    
256    
257      // ******************************************************************      // ******************************************************************
258      // * Sampler      // * Sampler
259    
260      Sampler::Sampler() {      Sampler::Sampler() {
261            eventHandler.SetSampler(this);
262            uiOldTotalVoiceCount = uiOldTotalStreamCount = 0;
263      }      }
264    
265      Sampler::~Sampler() {      Sampler::~Sampler() {
266          // delete sampler channels          Reset();
267          {      }
268              std::vector<SamplerChannel*>::iterator iter = vSamplerChannels.begin();  
269              for (; iter != vSamplerChannels.end(); iter++) delete *iter;      uint Sampler::SamplerChannels() {
270            return mSamplerChannels.size();
271        }
272    
273        void Sampler::AddChannelCountListener(ChannelCountListener* l) {
274            llChannelCountListeners.AddListener(l);
275        }
276    
277        void Sampler::RemoveChannelCountListener(ChannelCountListener* l) {
278           llChannelCountListeners.RemoveListener(l);
279        }
280    
281        void Sampler::fireChannelCountChanged(int NewCount) {
282            for (int i = 0; i < llChannelCountListeners.GetListenerCount(); i++) {
283                llChannelCountListeners.GetListener(i)->ChannelCountChanged(NewCount);
284          }          }
285        }
286    
287          // delete midi input devices      void Sampler::fireChannelAdded(SamplerChannel* pChannel) {
288          {          for (int i = 0; i < llChannelCountListeners.GetListenerCount(); i++) {
289              MidiInputDeviceMap::iterator iter = mMidiInputDevices.begin();              llChannelCountListeners.GetListener(i)->ChannelAdded(pChannel);
             for (; iter != mMidiInputDevices.end(); iter++) {  
                 MidiInputDevice* pDevice = iter->second;  
                 pDevice->StopListen();  
                 delete pDevice;  
             }  
290          }          }
291        }
292    
293          // delete audio output devices      void Sampler::fireChannelToBeRemoved(SamplerChannel* pChannel) {
294          {          for (int i = 0; i < llChannelCountListeners.GetListenerCount(); i++) {
295              AudioOutputDeviceMap::iterator iter = mAudioOutputDevices.begin();              llChannelCountListeners.GetListener(i)->ChannelToBeRemoved(pChannel);
             for (; iter != mAudioOutputDevices.end(); iter++) {  
                 AudioOutputDevice* pDevice = iter->second;  
                 pDevice->Stop();  
                 delete pDevice;  
             }  
296          }          }
297      }      }
298    
299      uint Sampler::SamplerChannels() {      void Sampler::AddAudioDeviceCountListener(AudioDeviceCountListener* l) {
300          return vSamplerChannels.size();          llAudioDeviceCountListeners.AddListener(l);
301        }
302    
303        void Sampler::RemoveAudioDeviceCountListener(AudioDeviceCountListener* l) {
304            llAudioDeviceCountListeners.RemoveListener(l);
305        }
306    
307        void Sampler::fireAudioDeviceCountChanged(int NewCount) {
308            for (int i = 0; i < llAudioDeviceCountListeners.GetListenerCount(); i++) {
309                llAudioDeviceCountListeners.GetListener(i)->AudioDeviceCountChanged(NewCount);
310            }
311        }
312    
313        void Sampler::AddMidiDeviceCountListener(MidiDeviceCountListener* l) {
314            llMidiDeviceCountListeners.AddListener(l);
315        }
316    
317        void Sampler::RemoveMidiDeviceCountListener(MidiDeviceCountListener* l) {
318            llMidiDeviceCountListeners.RemoveListener(l);
319        }
320    
321        void Sampler::fireMidiDeviceCountChanged(int NewCount) {
322            for (int i = 0; i < llMidiDeviceCountListeners.GetListenerCount(); i++) {
323                llMidiDeviceCountListeners.GetListener(i)->MidiDeviceCountChanged(NewCount);
324            }
325        }
326    
327        void Sampler::fireMidiDeviceToBeDestroyed(MidiInputDevice* pDevice) {
328            for (int i = 0; i < llMidiDeviceCountListeners.GetListenerCount(); i++) {
329                llMidiDeviceCountListeners.GetListener(i)->MidiDeviceToBeDestroyed(pDevice);
330            }
331        }
332    
333        void Sampler::fireMidiDeviceCreated(MidiInputDevice* pDevice) {
334            for (int i = 0; i < llMidiDeviceCountListeners.GetListenerCount(); i++) {
335                llMidiDeviceCountListeners.GetListener(i)->MidiDeviceCreated(pDevice);
336            }
337        }
338    
339        void Sampler::AddVoiceCountListener(VoiceCountListener* l) {
340            llVoiceCountListeners.AddListener(l);
341        }
342    
343        void Sampler::RemoveVoiceCountListener(VoiceCountListener* l) {
344            llVoiceCountListeners.RemoveListener(l);
345        }
346    
347        void Sampler::fireVoiceCountChanged(int ChannelId, int NewCount) {
348            std::map<uint, uint>::iterator it = mOldVoiceCounts.find(ChannelId);
349            if (it != mOldVoiceCounts.end()) {
350                uint oldCount = it->second;
351                if (NewCount == oldCount) return;
352            }
353    
354            mOldVoiceCounts[ChannelId] = NewCount;
355    
356            for (int i = 0; i < llVoiceCountListeners.GetListenerCount(); i++) {
357                llVoiceCountListeners.GetListener(i)->VoiceCountChanged(ChannelId, NewCount);
358            }
359        }
360    
361        void Sampler::AddStreamCountListener(StreamCountListener* l) {
362            llStreamCountListeners.AddListener(l);
363        }
364    
365        void Sampler::RemoveStreamCountListener(StreamCountListener* l) {
366            llStreamCountListeners.RemoveListener(l);
367        }
368    
369        void Sampler::fireStreamCountChanged(int ChannelId, int NewCount) {
370            std::map<uint, uint>::iterator it = mOldStreamCounts.find(ChannelId);
371            if (it != mOldStreamCounts.end()) {
372                uint oldCount = it->second;
373                if (NewCount == oldCount) return;
374            }
375    
376            mOldStreamCounts[ChannelId] = NewCount;
377    
378            for (int i = 0; i < llStreamCountListeners.GetListenerCount(); i++) {
379                llStreamCountListeners.GetListener(i)->StreamCountChanged(ChannelId, NewCount);
380            }
381        }
382    
383        void Sampler::AddBufferFillListener(BufferFillListener* l) {
384            llBufferFillListeners.AddListener(l);
385        }
386    
387        void Sampler::RemoveBufferFillListener(BufferFillListener* l) {
388            llBufferFillListeners.RemoveListener(l);
389        }
390    
391        void Sampler::fireBufferFillChanged(int ChannelId, String FillData) {
392            for (int i = 0; i < llBufferFillListeners.GetListenerCount(); i++) {
393                llBufferFillListeners.GetListener(i)->BufferFillChanged(ChannelId, FillData);
394            }
395      }      }
396    
397        void Sampler::AddTotalStreamCountListener(TotalStreamCountListener* l) {
398            llTotalStreamCountListeners.AddListener(l);
399        }
400    
401        void Sampler::RemoveTotalStreamCountListener(TotalStreamCountListener* l) {
402            llTotalStreamCountListeners.RemoveListener(l);
403        }
404    
405        void Sampler::fireTotalStreamCountChanged(int NewCount) {
406            if (NewCount == uiOldTotalStreamCount) return;
407            uiOldTotalStreamCount = NewCount;
408    
409            for (int i = 0; i < llTotalStreamCountListeners.GetListenerCount(); i++) {
410                llTotalStreamCountListeners.GetListener(i)->TotalStreamCountChanged(NewCount);
411            }
412        }
413    
414        void Sampler::AddTotalVoiceCountListener(TotalVoiceCountListener* l) {
415            llTotalVoiceCountListeners.AddListener(l);
416        }
417    
418        void Sampler::RemoveTotalVoiceCountListener(TotalVoiceCountListener* l) {
419            llTotalVoiceCountListeners.RemoveListener(l);
420        }
421    
422        void Sampler::fireTotalVoiceCountChanged(int NewCount) {
423            if (NewCount == uiOldTotalVoiceCount) return;
424            uiOldTotalVoiceCount = NewCount;
425    
426            for (int i = 0; i < llTotalVoiceCountListeners.GetListenerCount(); i++) {
427                llTotalVoiceCountListeners.GetListener(i)->TotalVoiceCountChanged(NewCount);
428            }
429        }
430    
431        void Sampler::AddFxSendCountListener(FxSendCountListener* l) {
432            llFxSendCountListeners.AddListener(l);
433        }
434    
435        void Sampler::RemoveFxSendCountListener(FxSendCountListener* l) {
436            llFxSendCountListeners.RemoveListener(l);
437        }
438    
439        void Sampler::fireFxSendCountChanged(int ChannelId, int NewCount) {
440            for (int i = 0; i < llFxSendCountListeners.GetListenerCount(); i++) {
441                llFxSendCountListeners.GetListener(i)->FxSendCountChanged(ChannelId, NewCount);
442            }
443        }
444    
445        void Sampler::EventHandler::EngineToBeChanged(int ChannelId) {
446            // nothing to do here
447        }
448    
449        void Sampler::EventHandler::EngineChanged(int ChannelId) {
450            EngineChannel* engineChannel = pSampler->GetSamplerChannel(ChannelId)->GetEngineChannel();
451            if(engineChannel == NULL) return;
452            engineChannel->AddFxSendCountListener(this);
453        }
454    
455        void Sampler::EventHandler::FxSendCountChanged(int ChannelId, int NewCount) {
456            pSampler->fireFxSendCountChanged(ChannelId, NewCount);
457        }
458    
459    
460      SamplerChannel* Sampler::AddSamplerChannel() {      SamplerChannel* Sampler::AddSamplerChannel() {
461            // if there's no sampler channel yet
462            if (!mSamplerChannels.size()) {
463                SamplerChannel* pChannel = new SamplerChannel(this);
464                mSamplerChannels[0] = pChannel;
465                fireChannelAdded(pChannel);
466                fireChannelCountChanged(1);
467                pChannel->AddEngineChangeListener(&eventHandler);
468                return pChannel;
469            }
470    
471            // get the highest used sampler channel index
472            uint lastIndex = (--(mSamplerChannels.end()))->first;
473    
474            // check if we reached the index limit
475            if (lastIndex + 1 < lastIndex) {
476                // search for an unoccupied sampler channel index starting from 0
477                for (uint i = 0; i < lastIndex; i++) {
478                    if (mSamplerChannels.find(i) != mSamplerChannels.end()) continue;
479                    // we found an unused index, so insert the new channel there
480                    SamplerChannel* pChannel = new SamplerChannel(this);
481                    mSamplerChannels[i] = pChannel;
482                    fireChannelAdded(pChannel);
483                    fireChannelCountChanged(SamplerChannels());
484                    pChannel->AddEngineChangeListener(&eventHandler);
485                    return pChannel;
486                }
487                throw Exception("Internal error: could not find unoccupied sampler channel index.");
488            }
489    
490            // we have not reached the index limit so we just add the channel past the highest index
491          SamplerChannel* pChannel = new SamplerChannel(this);          SamplerChannel* pChannel = new SamplerChannel(this);
492          vSamplerChannels.push_back(pChannel);          mSamplerChannels[lastIndex + 1] = pChannel;
493            fireChannelAdded(pChannel);
494            fireChannelCountChanged(SamplerChannels());
495            pChannel->AddEngineChangeListener(&eventHandler);
496          return pChannel;          return pChannel;
497      }      }
498    
499      SamplerChannel* Sampler::GetSamplerChannel(uint uiSamplerChannel) {      SamplerChannel* Sampler::GetSamplerChannel(uint uiSamplerChannel) {
500          if (uiSamplerChannel >= SamplerChannels()) return NULL;          return (mSamplerChannels.find(uiSamplerChannel) != mSamplerChannels.end()) ? mSamplerChannels[uiSamplerChannel] : NULL;
501          return vSamplerChannels[uiSamplerChannel];      }
502    
503        std::map<uint, SamplerChannel*> Sampler::GetSamplerChannels() {
504            return mSamplerChannels;
505      }      }
506    
507      void Sampler::RemoveSamplerChannel(SamplerChannel* pSamplerChannel) {      void Sampler::RemoveSamplerChannel(SamplerChannel* pSamplerChannel) {
508          std::vector<SamplerChannel*>::iterator iterChan = vSamplerChannels.begin();          SamplerChannelMap::iterator iterChan = mSamplerChannels.begin();
509          for (; iterChan != vSamplerChannels.end(); iterChan++) {          for (; iterChan != mSamplerChannels.end(); iterChan++) {
510              if (*iterChan == pSamplerChannel) {              if (iterChan->second == pSamplerChannel) {
511                  vSamplerChannels.erase(iterChan);                  fireChannelToBeRemoved(pSamplerChannel);
512                    mOldVoiceCounts.erase(pSamplerChannel->Index());
513                    mOldStreamCounts.erase(pSamplerChannel->Index());
514                    pSamplerChannel->RemoveAllEngineChangeListeners();
515                    mSamplerChannels.erase(iterChan);
516                  delete pSamplerChannel;                  delete pSamplerChannel;
517                    fireChannelCountChanged(SamplerChannels());
518                  return;                  return;
519              }              }
520          }          }
# Line 226  namespace LinuxSampler { Line 526  namespace LinuxSampler {
526          RemoveSamplerChannel(pChannel);          RemoveSamplerChannel(pChannel);
527      }      }
528    
529        void Sampler::RemoveAllSamplerChannels() {
530            /*
531             * In maps iterator invalidation occurs when the iterator point
532             * to the element that is being erased. So we need to copy the map
533             * by calling GetSamplerChannels() to prevent that.
534             */
535            SamplerChannelMap chns = GetSamplerChannels();
536            SamplerChannelMap::iterator iter = chns.begin();
537            for(; iter != chns.end(); iter++) {
538                RemoveSamplerChannel(iter->second);
539            }
540        }
541    
542      std::vector<String> Sampler::AvailableAudioOutputDrivers() {      std::vector<String> Sampler::AvailableAudioOutputDrivers() {
543          return AudioOutputDeviceFactory::AvailableDrivers();          return AudioOutputDeviceFactory::AvailableDrivers();
544      }      }
545    
546      AudioOutputDevice* Sampler::CreateAudioOutputDevice(String AudioDriver, std::map<String,String> Parameters) throw (LinuxSamplerException) {      std::vector<String> Sampler::AvailableMidiInputDrivers() {
547            return MidiInputDeviceFactory::AvailableDrivers();
548        }
549    
550        std::vector<String> Sampler::AvailableEngineTypes() {
551            return EngineFactory::AvailableEngineTypes();
552        }
553    
554        AudioOutputDevice* Sampler::CreateAudioOutputDevice(String AudioDriver, std::map<String,String> Parameters) throw (Exception) {
555          // create new device          // create new device
556          AudioOutputDevice* pDevice = AudioOutputDeviceFactory::Create(AudioDriver, Parameters);          AudioOutputDevice* pDevice = AudioOutputDeviceFactory::Create(AudioDriver, Parameters);
557    
558          // 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;  
             }  
         }  
   
559          return pDevice;          return pDevice;
560      }      }
561    
562      uint Sampler::AudioOutputDevices() {      uint Sampler::AudioOutputDevices() {
563          return mAudioOutputDevices.size();          return AudioOutputDeviceFactory::Devices().size();
564      }      }
565    
566      uint Sampler::MidiInputDevices() {      uint Sampler::MidiInputDevices() {
567          return mMidiInputDevices.size();          return MidiInputDeviceFactory::Devices().size();
568      }      }
569    
570      std::map<uint, AudioOutputDevice*> Sampler::GetAudioOutputDevices() {      std::map<uint, AudioOutputDevice*> Sampler::GetAudioOutputDevices() {
571          return mAudioOutputDevices;          return AudioOutputDeviceFactory::Devices();
572      }      }
573    
574      std::map<uint, MidiInputDevice*> Sampler::GetMidiInputDevices() {      std::map<uint, MidiInputDevice*> Sampler::GetMidiInputDevices() {
575          return mMidiInputDevices;          return MidiInputDeviceFactory::Devices();
576      }      }
577    
578      void Sampler::DestroyAudioOutputDevice(AudioOutputDevice* pDevice) throw (LinuxSamplerException) {      void Sampler::DestroyAudioOutputDevice(AudioOutputDevice* pDevice) throw (Exception) {
579          AudioOutputDeviceMap::iterator iter = mAudioOutputDevices.begin();          if (pDevice) {
580          for (; iter != mAudioOutputDevices.end(); iter++) {              // check if there are still sampler engines connected to this device
581              if (iter->second == pDevice) {              for (SamplerChannelMap::iterator iterChan = mSamplerChannels.begin();
582                  // check if there are still sampler engines connected to this device                   iterChan != mSamplerChannels.end(); iterChan++
583                  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.");
584                      if (GetSamplerChannel(i)->GetAudioOutputDevice() == pDevice) throw LinuxSamplerException("Sampler channel " + ToString(i) + " is still connected to the audio output device.");  
585                //TODO: should we add fireAudioDeviceToBeDestroyed() here ?
586                AudioOutputDeviceFactory::Destroy(pDevice);
587                fireAudioDeviceCountChanged(AudioOutputDevices());
588            }
589        }
590    
591                  // disable device      void Sampler::DestroyAllAudioOutputDevices() throw (Exception) {
592                  pDevice->Stop();          /*
593             * In maps iterator invalidation occurs when the iterator point
594             * to the element that is being erased. So we need to copy the map
595             * by calling GetAudioOutputDevices() to prevent that.
596             */
597            std::map<uint, AudioOutputDevice*> devs = GetAudioOutputDevices();
598            std::map<uint, AudioOutputDevice*>::iterator iter = devs.begin();
599            for (; iter != devs.end(); iter++) {
600                AudioOutputDevice* pDevice = iter->second;
601    
602                  // remove device from the device list              // skip non-autonomous devices
603                  mAudioOutputDevices.erase(iter);              if (!pDevice->isAutonomousDevice()) continue;
604    
605                  // destroy and free device from memory              DestroyAudioOutputDevice(pDevice);
                 delete pDevice;  
             }  
606          }          }
607      }      }
608    
609      void Sampler::DestroyMidiInputDevice(MidiInputDevice* pDevice) throw (LinuxSamplerException) {      void Sampler::DestroyMidiInputDevice(MidiInputDevice* pDevice) throw (Exception) {
610          MidiInputDeviceMap::iterator iter = mMidiInputDevices.begin();          if (pDevice) {
611          for (; iter != mMidiInputDevices.end(); iter++) {              // check if there are still sampler engines connected to this device
612              if (iter->second == pDevice) {              for (SamplerChannelMap::iterator iterChan = mSamplerChannels.begin();
613                  // check if there are still sampler engines connected to this device                   iterChan != mSamplerChannels.end(); iterChan++
614                  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.");  
615    
616                  // disable device              fireMidiDeviceToBeDestroyed(pDevice);
617                  pDevice->StopListen();              MidiInputDeviceFactory::Destroy(pDevice);
618                fireMidiDeviceCountChanged(MidiInputDevices());
619            }
620        }
621    
622                  // remove device from the device list      void Sampler::DestroyAllMidiInputDevices() throw (Exception) {
623                  mMidiInputDevices.erase(iter);          /*
624             * In maps iterator invalidation occurs when the iterator point
625             * to the element that is being erased. So we need to copy the map
626             * by calling GetMidiInputDevices() to prevent that.
627             */
628            std::map<uint, MidiInputDevice*> devs = GetMidiInputDevices();
629            std::map<uint, MidiInputDevice*>::iterator iter = devs.begin();
630            for (; iter != devs.end(); iter++) {
631                MidiInputDevice* pDevice = iter->second;
632    
633                  // destroy and free device from memory              // skip non-autonomous devices
634                  delete pDevice;              if (!pDevice->isAutonomousDevice()) continue;
635              }  
636                DestroyMidiInputDevice(pDevice);
637          }          }
638      }      }
639    
640      MidiInputDevice* Sampler::CreateMidiInputDevice(String MidiDriver, std::map<String,String> Parameters) throw (LinuxSamplerException) {      MidiInputDevice* Sampler::CreateMidiInputDevice(String MidiDriver, std::map<String,String> Parameters) throw (Exception) {
641          // create new device          // create new device
642          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;  
                 }  
         }  
643    
644            fireMidiDeviceCreated(pDevice);
645            fireMidiDeviceCountChanged(MidiInputDevices());
646          return pDevice;          return pDevice;
647      }      }
648    
649        int Sampler::GetDiskStreamCount() {
650            int count = 0;
651            std::set<Engine*>::iterator it = EngineFactory::EngineInstances().begin();
652    
653            for(; it != EngineFactory::EngineInstances().end(); it++) {
654                count += (*it)->DiskStreamCount();
655            }
656    
657            return count;
658        }
659    
660        int Sampler::GetVoiceCount() {
661            int count = 0;
662            std::set<Engine*>::iterator it = EngineFactory::EngineInstances().begin();
663    
664            for(; it != EngineFactory::EngineInstances().end(); it++) {
665                count += (*it)->VoiceCount();
666            }
667    
668            return count;
669        }
670    
671        void Sampler::Reset() {
672            // delete sampler channels
673            try {
674                RemoveAllSamplerChannels();
675            }
676            catch(...) {
677                std::cerr << "Sampler::Reset(): Exception occured while trying to delete all sampler channels, exiting.\n" << std::flush;
678                exit(EXIT_FAILURE);
679            }
680    
681            // delete midi input devices
682            try {
683                DestroyAllMidiInputDevices();
684            }
685            catch(...) {
686                std::cerr << "Sampler::Reset(): Exception occured while trying to delete all MIDI input devices, exiting.\n" << std::flush;
687                exit(EXIT_FAILURE);
688            }
689    
690            // delete audio output devices
691            try {
692                DestroyAllAudioOutputDevices();
693            }
694            catch(...) {
695                std::cerr << "Sampler::Reset(): Exception occured while trying to delete all audio output devices, exiting.\n" << std::flush;
696                exit(EXIT_FAILURE);
697            }
698    
699            // delete MIDI instrument maps
700            try {
701                MidiInstrumentMapper::RemoveAllMaps();
702            }
703            catch(...) {
704                std::cerr << "Sampler::Reset(): Exception occured while trying to delete all MIDI instrument maps, exiting.\n" << std::flush;
705                exit(EXIT_FAILURE);
706            }
707    
708            // unload all instrument editor DLLs
709            InstrumentEditorFactory::ClosePlugins();
710        }
711    
712        bool Sampler::EnableDenormalsAreZeroMode() {
713            Features::detect();
714            return Features::enableDenormalsAreZeroMode();
715        }
716    
717        void Sampler::fireStatistics() {
718            static const LSCPEvent::event_t eventsArr[] = {
719                LSCPEvent::event_voice_count, LSCPEvent::event_stream_count,
720                LSCPEvent::event_buffer_fill, LSCPEvent::event_total_voice_count
721            };
722            static const std::list<LSCPEvent::event_t> events(eventsArr, eventsArr + 4);
723    
724            if (LSCPServer::EventSubscribers(events))
725            {
726                LSCPServer::LockRTNotify();
727                std::map<uint,SamplerChannel*> channels = GetSamplerChannels();
728                std::map<uint,SamplerChannel*>::iterator iter = channels.begin();
729                for (; iter != channels.end(); iter++) {
730                    SamplerChannel* pSamplerChannel = iter->second;
731                    EngineChannel* pEngineChannel = pSamplerChannel->GetEngineChannel();
732                    if (!pEngineChannel) continue;
733                    Engine* pEngine = pEngineChannel->GetEngine();
734                    if (!pEngine) continue;
735                    fireVoiceCountChanged(iter->first, pEngineChannel->GetVoiceCount());
736                    fireStreamCountChanged(iter->first, pEngineChannel->GetDiskStreamCount());
737                    fireBufferFillChanged(iter->first, pEngine->DiskStreamBufferFillPercentage());
738                }
739    
740                fireTotalStreamCountChanged(GetDiskStreamCount());
741                fireTotalVoiceCountChanged(GetVoiceCount());
742    
743                LSCPServer::UnlockRTNotify();
744            }
745        }
746    
747    #if defined(WIN32)
748        static HINSTANCE dllInstance = NULL;
749    
750        String Sampler::GetInstallDir() {
751            char buf[MAX_PATH + 1];
752            if (GetModuleFileName(dllInstance, buf, MAX_PATH)) {
753                String s(buf);
754                size_t n = s.rfind('\\');
755                if (n != String::npos) {
756                    return s.substr(0, n);
757                }
758            }
759            return "";
760        }
761    #endif
762  } // namespace LinuxSampler  } // namespace LinuxSampler
763    
764    #if defined(WIN32)
765    extern "C" {
766        BOOL WINAPI DllMain(HINSTANCE instance, DWORD reason, LPVOID reserved)
767        {
768            switch (reason) {
769            case DLL_PROCESS_ATTACH:
770                LinuxSampler::dllInstance = instance;
771                break;
772            }
773            return TRUE;
774        }
775    }
776    #endif
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