/[svn]/linuxsampler/trunk/src/engines/gig/EngineChannel.cpp
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Diff of /linuxsampler/trunk/src/engines/gig/EngineChannel.cpp

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revision 554 by schoenebeck, Thu May 19 19:25:14 2005 UTC revision 1309 by iliev, Wed Aug 29 10:36:32 2007 UTC
# Line 3  Line 3 
3   *   LinuxSampler - modular, streaming capable sampler                     *   *   LinuxSampler - modular, streaming capable sampler                     *
4   *                                                                         *   *                                                                         *
5   *   Copyright (C) 2003, 2004 by Benno Senoner and Christian Schoenebeck   *   *   Copyright (C) 2003, 2004 by Benno Senoner and Christian Schoenebeck   *
6   *   Copyright (C) 2005 Christian Schoenebeck                              *   *   Copyright (C) 2005 - 2007 Christian Schoenebeck                       *
7   *                                                                         *   *                                                                         *
8   *   This program is free software; you can redistribute it and/or modify  *   *   This program 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  *
# Line 30  namespace LinuxSampler { namespace gig { Line 30  namespace LinuxSampler { namespace gig {
30          pEngine      = NULL;          pEngine      = NULL;
31          pInstrument  = NULL;          pInstrument  = NULL;
32          pEvents      = NULL; // we allocate when we retrieve the right Engine object          pEvents      = NULL; // we allocate when we retrieve the right Engine object
33          pCCEvents    = NULL; // we allocate when we retrieve the right Engine object          pEventQueue  = new RingBuffer<Event,false>(CONFIG_MAX_EVENTS_PER_FRAGMENT, 0);
         pEventQueue  = new RingBuffer<Event>(CONFIG_MAX_EVENTS_PER_FRAGMENT, 0);  
34          pActiveKeys  = new Pool<uint>(128);          pActiveKeys  = new Pool<uint>(128);
35          for (uint i = 0; i < 128; i++) {          for (uint i = 0; i < 128; i++) {
36              pMIDIKeyInfo[i].pActiveVoices  = NULL; // we allocate when we retrieve the right Engine object              pMIDIKeyInfo[i].pActiveVoices  = NULL; // we allocate when we retrieve the right Engine object
# Line 42  namespace LinuxSampler { namespace gig { Line 41  namespace LinuxSampler { namespace gig {
41              pMIDIKeyInfo[i].VoiceTheftsQueued = 0;              pMIDIKeyInfo[i].VoiceTheftsQueued = 0;
42              pMIDIKeyInfo[i].RoundRobinIndex = 0;              pMIDIKeyInfo[i].RoundRobinIndex = 0;
43          }          }
         for (uint i = 0; i < Event::destination_count; i++) {  
             pSynthesisEvents[i] = NULL; // we allocate when we retrieve the right Engine object  
         }  
44          InstrumentIdx  = -1;          InstrumentIdx  = -1;
45          InstrumentStat = -1;          InstrumentStat = -1;
46            pChannelLeft  = NULL;
47            pChannelRight = NULL;
48          AudioDeviceChannelLeft  = -1;          AudioDeviceChannelLeft  = -1;
49          AudioDeviceChannelRight = -1;          AudioDeviceChannelRight = -1;
50            pMidiInputPort = NULL;
51            midiChannel = midi_chan_all;
52            ResetControllers();
53            SoloMode       = false;
54            PortamentoMode = false;
55            PortamentoTime = CONFIG_PORTAMENTO_TIME_DEFAULT;
56      }      }
57    
58      EngineChannel::~EngineChannel() {      EngineChannel::~EngineChannel() {
# Line 57  namespace LinuxSampler { namespace gig { Line 61  namespace LinuxSampler { namespace gig {
61          if (pEventQueue) delete pEventQueue;          if (pEventQueue) delete pEventQueue;
62          if (pActiveKeys) delete pActiveKeys;          if (pActiveKeys) delete pActiveKeys;
63          if (pMIDIKeyInfo) delete[] pMIDIKeyInfo;          if (pMIDIKeyInfo) delete[] pMIDIKeyInfo;
64            RemoveAllFxSends();
65        }
66    
67        /**
68         * Implementation of virtual method from abstract EngineChannel interface.
69         * This method will periodically be polled (e.g. by the LSCP server) to
70         * check if some engine channel parameter has changed since the last
71         * StatusChanged() call.
72         *
73         * This method can also be used to mark the engine channel as changed
74         * from outside, e.g. by a MIDI input device. The optional argument
75         * \a nNewStatus can be used for this.
76         *
77         * TODO: This "poll method" is just a lazy solution and might be
78         *       replaced in future.
79         * @param bNewStatus - (optional, default: false) sets the new status flag
80         * @returns true if engine channel status has changed since last
81         *          StatusChanged() call
82         */
83        bool EngineChannel::StatusChanged(bool bNewStatus) {
84            bool b = bStatusChanged;
85            bStatusChanged = bNewStatus;
86            return b;
87        }
88    
89        void EngineChannel::Reset() {
90            if (pEngine) pEngine->DisableAndLock();
91            ResetInternal();
92            ResetControllers();
93            if (pEngine) {
94                pEngine->Enable();
95                pEngine->Reset();
96            }
97      }      }
98    
99      /**      /**
100       * This method is not thread safe!       * This method is not thread safe!
101       */       */
102      void EngineChannel::ResetInternal() {      void EngineChannel::ResetInternal() {
         Pitch               = 0;  
         SustainPedal        = false;  
         GlobalVolume        = 1.0;  
         GlobalPanLeft       = 1.0f;  
         GlobalPanRight      = 1.0f;  
103          CurrentKeyDimension = 0;          CurrentKeyDimension = 0;
104    
         ResetControllers();  
   
105          // reset key info          // reset key info
106          for (uint i = 0; i < 128; i++) {          for (uint i = 0; i < 128; i++) {
107              if (pMIDIKeyInfo[i].pActiveVoices)              if (pMIDIKeyInfo[i].pActiveVoices)
# Line 84  namespace LinuxSampler { namespace gig { Line 114  namespace LinuxSampler { namespace gig {
114              pMIDIKeyInfo[i].itSelf         = Pool<uint>::Iterator();              pMIDIKeyInfo[i].itSelf         = Pool<uint>::Iterator();
115              pMIDIKeyInfo[i].VoiceTheftsQueued = 0;              pMIDIKeyInfo[i].VoiceTheftsQueued = 0;
116          }          }
117            SoloKey       = -1;    // no solo key active yet
118            PortamentoPos = -1.0f; // no portamento active yet
119    
120          // reset all key groups          // reset all key groups
121          std::map<uint,uint*>::iterator iter = ActiveKeyGroups.begin();          std::map<uint,uint*>::iterator iter = ActiveKeyGroups.begin();
# Line 96  namespace LinuxSampler { namespace gig { Line 128  namespace LinuxSampler { namespace gig {
128          pEventQueue->init();          pEventQueue->init();
129    
130          if (pEngine) pEngine->ResetInternal();          if (pEngine) pEngine->ResetInternal();
131    
132            // status of engine channel has changed, so set notify flag
133            bStatusChanged = true;
134      }      }
135    
136      LinuxSampler::Engine* EngineChannel::GetEngine() {      LinuxSampler::Engine* EngineChannel::GetEngine() {
# Line 124  namespace LinuxSampler { namespace gig { Line 159  namespace LinuxSampler { namespace gig {
159       * This method will then actually start to load the instrument and block       * This method will then actually start to load the instrument and block
160       * the calling thread until loading was completed.       * the calling thread until loading was completed.
161       *       *
      * @returns detailed description of the method call result  
162       * @see PrepareLoadInstrument()       * @see PrepareLoadInstrument()
163       */       */
164      void EngineChannel::LoadInstrument() {      void EngineChannel::LoadInstrument() {
165            ::gig::Instrument* oldInstrument = pInstrument;
         if (pEngine) pEngine->DisableAndLock();  
   
         ResetInternal();  
166    
167          // free old instrument          // free old instrument
168          if (pInstrument) {          if (oldInstrument) {
169              // give old instrument back to instrument manager              if (pEngine) {
170              Engine::instruments.HandBack(pInstrument, this);                  // make sure we don't trigger any new notes with the
171                    // old instrument
172                    ::gig::DimensionRegion** dimRegionsInUse = pEngine->ChangeInstrument(this, 0);
173    
174                    // give old instrument back to instrument manager, but
175                    // keep the dimension regions and samples that are in
176                    // use
177                    Engine::instruments.HandBackInstrument(oldInstrument, this, dimRegionsInUse);
178                } else {
179                    Engine::instruments.HandBack(oldInstrument, this);
180                }
181          }          }
182    
183          // delete all key groups          // delete all key groups
184          ActiveKeyGroups.clear();          ActiveKeyGroups.clear();
185    
186          // request gig instrument from instrument manager          // request gig instrument from instrument manager
187            ::gig::Instrument* newInstrument;
188          try {          try {
189              instrument_id_t instrid;              InstrumentManager::instrument_id_t instrid;
190              instrid.FileName    = InstrumentFile;              instrid.FileName  = InstrumentFile;
191              instrid.iInstrument = InstrumentIdx;              instrid.Index     = InstrumentIdx;
192              pInstrument = Engine::instruments.Borrow(instrid, this);              newInstrument = Engine::instruments.Borrow(instrid, this);
193              if (!pInstrument) {              if (!newInstrument) {
194                  InstrumentStat = -1;                  throw InstrumentManagerException("resource was not created");
                 dmsg(1,("no instrument loaded!!!\n"));  
                 exit(EXIT_FAILURE);  
195              }              }
196          }          }
197          catch (RIFF::Exception e) {          catch (RIFF::Exception e) {
198              InstrumentStat = -2;              InstrumentStat = -2;
199                StatusChanged(true);
200              String msg = "gig::Engine error: Failed to load instrument, cause: " + e.Message;              String msg = "gig::Engine error: Failed to load instrument, cause: " + e.Message;
201              throw LinuxSamplerException(msg);              throw Exception(msg);
202          }          }
203          catch (InstrumentResourceManagerException e) {          catch (InstrumentManagerException e) {
204              InstrumentStat = -3;              InstrumentStat = -3;
205                StatusChanged(true);
206              String msg = "gig::Engine error: Failed to load instrument, cause: " + e.Message();              String msg = "gig::Engine error: Failed to load instrument, cause: " + e.Message();
207              throw LinuxSamplerException(msg);              throw Exception(msg);
208          }          }
209          catch (...) {          catch (...) {
210              InstrumentStat = -4;              InstrumentStat = -4;
211              throw LinuxSamplerException("gig::Engine error: Failed to load instrument, cause: Unknown exception while trying to parse gig file.");              StatusChanged(true);
212                throw Exception("gig::Engine error: Failed to load instrument, cause: Unknown exception while trying to parse gig file.");
213          }          }
214    
215          // rebuild ActiveKeyGroups map with key groups of current instrument          // rebuild ActiveKeyGroups map with key groups of current instrument
216          for (::gig::Region* pRegion = pInstrument->GetFirstRegion(); pRegion; pRegion = pInstrument->GetNextRegion())          for (::gig::Region* pRegion = newInstrument->GetFirstRegion(); pRegion; pRegion = newInstrument->GetNextRegion())
217              if (pRegion->KeyGroup) ActiveKeyGroups[pRegion->KeyGroup] = NULL;              if (pRegion->KeyGroup) ActiveKeyGroups[pRegion->KeyGroup] = NULL;
218    
219          InstrumentIdxName = pInstrument->pInfo->Name;          InstrumentIdxName = newInstrument->pInfo->Name;
220          InstrumentStat = 100;          InstrumentStat = 100;
221    
222          // inform audio driver for the need of two channels          if (pEngine) pEngine->ChangeInstrument(this, newInstrument);
223          try {          else pInstrument = newInstrument;
224              if (pEngine && pEngine->pAudioOutputDevice)          
225                  pEngine->pAudioOutputDevice->AcquireChannels(2); // gig Engine only stereo          StatusChanged(true);
         }  
         catch (AudioOutputException e) {  
             String msg = "Audio output device unable to provide 2 audio channels, cause: " + e.Message();  
             throw LinuxSamplerException(msg);  
         }  
   
         if (pEngine) pEngine->Enable();  
226      }      }
227    
228      /**      /**
# Line 208  namespace LinuxSampler { namespace gig { Line 244  namespace LinuxSampler { namespace gig {
244      void EngineChannel::ResourceUpdated(::gig::Instrument* pOldResource, ::gig::Instrument* pNewResource, void* pUpdateArg) {      void EngineChannel::ResourceUpdated(::gig::Instrument* pOldResource, ::gig::Instrument* pNewResource, void* pUpdateArg) {
245          this->pInstrument = pNewResource; //TODO: there are couple of engine parameters we should update here as well if the instrument was updated (see LoadInstrument())          this->pInstrument = pNewResource; //TODO: there are couple of engine parameters we should update here as well if the instrument was updated (see LoadInstrument())
246          if (pEngine) pEngine->Enable();          if (pEngine) pEngine->Enable();
247            bStatusChanged = true; // status of engine has changed, so set notify flag
248      }      }
249    
250      /**      /**
# Line 219  namespace LinuxSampler { namespace gig { Line 256  namespace LinuxSampler { namespace gig {
256      void EngineChannel::OnResourceProgress(float fProgress) {      void EngineChannel::OnResourceProgress(float fProgress) {
257          this->InstrumentStat = int(fProgress * 100.0f);          this->InstrumentStat = int(fProgress * 100.0f);
258          dmsg(7,("gig::EngineChannel: progress %d%", InstrumentStat));          dmsg(7,("gig::EngineChannel: progress %d%", InstrumentStat));
259            bStatusChanged = true; // status of engine has changed, so set notify flag
260      }      }
261    
262      void EngineChannel::Connect(AudioOutputDevice* pAudioOut) {      void EngineChannel::Connect(AudioOutputDevice* pAudioOut) {
# Line 228  namespace LinuxSampler { namespace gig { Line 266  namespace LinuxSampler { namespace gig {
266          }          }
267          pEngine = Engine::AcquireEngine(this, pAudioOut);          pEngine = Engine::AcquireEngine(this, pAudioOut);
268          ResetInternal();          ResetInternal();
269          pEvents   = new RTList<Event>(pEngine->pEventPool);          pEvents = new RTList<Event>(pEngine->pEventPool);
         pCCEvents = new RTList<Event>(pEngine->pEventPool);  
         for (uint i = 0; i < Event::destination_count; i++) {  
             pSynthesisEvents[i] = new RTList<Event>(pEngine->pEventPool);  
         }  
270          for (uint i = 0; i < 128; i++) {          for (uint i = 0; i < 128; i++) {
271              pMIDIKeyInfo[i].pActiveVoices = new RTList<Voice>(pEngine->pVoicePool);              pMIDIKeyInfo[i].pActiveVoices = new RTList<Voice>(pEngine->pVoicePool);
272              pMIDIKeyInfo[i].pEvents       = new RTList<Event>(pEngine->pEventPool);              pMIDIKeyInfo[i].pEvents       = new RTList<Event>(pEngine->pEventPool);
273          }          }
274          AudioDeviceChannelLeft  = 0;          AudioDeviceChannelLeft  = 0;
275          AudioDeviceChannelRight = 1;          AudioDeviceChannelRight = 1;
276          pOutputLeft             = pAudioOut->Channel(0)->Buffer();          if (fxSends.empty()) { // render directly into the AudioDevice's output buffers
277          pOutputRight            = pAudioOut->Channel(1)->Buffer();              pChannelLeft  = pAudioOut->Channel(AudioDeviceChannelLeft);
278                pChannelRight = pAudioOut->Channel(AudioDeviceChannelRight);
279            } else { // use local buffers for rendering and copy later
280                // ensure the local buffers have the correct size
281                if (pChannelLeft)  delete pChannelLeft;
282                if (pChannelRight) delete pChannelRight;
283                pChannelLeft  = new AudioChannel(0, pAudioOut->MaxSamplesPerCycle());
284                pChannelRight = new AudioChannel(1, pAudioOut->MaxSamplesPerCycle());
285            }
286            if (pEngine->EngineDisabled.GetUnsafe()) pEngine->Enable();
287            MidiInputPort::AddSysexListener(pEngine);
288      }      }
289    
290      void EngineChannel::DisconnectAudioOutputDevice() {      void EngineChannel::DisconnectAudioOutputDevice() {
# Line 250  namespace LinuxSampler { namespace gig { Line 294  namespace LinuxSampler { namespace gig {
294                  delete pEvents;                  delete pEvents;
295                  pEvents = NULL;                  pEvents = NULL;
296              }              }
             if (pCCEvents) {  
                 delete pCCEvents;  
                 pCCEvents = NULL;  
             }  
297              for (uint i = 0; i < 128; i++) {              for (uint i = 0; i < 128; i++) {
298                  if (pMIDIKeyInfo[i].pActiveVoices) {                  if (pMIDIKeyInfo[i].pActiveVoices) {
299                      delete pMIDIKeyInfo[i].pActiveVoices;                      delete pMIDIKeyInfo[i].pActiveVoices;
# Line 264  namespace LinuxSampler { namespace gig { Line 304  namespace LinuxSampler { namespace gig {
304                      pMIDIKeyInfo[i].pEvents = NULL;                      pMIDIKeyInfo[i].pEvents = NULL;
305                  }                  }
306              }              }
             for (uint i = 0; i < Event::destination_count; i++) {  
                 if (pSynthesisEvents[i]) {  
                     delete pSynthesisEvents[i];  
                     pSynthesisEvents[i] = NULL;  
                 }  
             }  
307              Engine* oldEngine = pEngine;              Engine* oldEngine = pEngine;
308              AudioOutputDevice* oldAudioDevice = pEngine->pAudioOutputDevice;              AudioOutputDevice* oldAudioDevice = pEngine->pAudioOutputDevice;
309              pEngine = NULL;              pEngine = NULL;
310              Engine::FreeEngine(this, oldAudioDevice);              Engine::FreeEngine(this, oldAudioDevice);
311              AudioDeviceChannelLeft  = -1;              AudioDeviceChannelLeft  = -1;
312              AudioDeviceChannelRight = -1;              AudioDeviceChannelRight = -1;
313                if (!fxSends.empty()) { // free the local rendering buffers
314                    if (pChannelLeft)  delete pChannelLeft;
315                    if (pChannelRight) delete pChannelRight;
316                }
317                pChannelLeft  = NULL;
318                pChannelRight = NULL;
319          }          }
320      }      }
321    
322        AudioOutputDevice* EngineChannel::GetAudioOutputDevice() {
323            return (pEngine) ? pEngine->pAudioOutputDevice : NULL;
324        }
325    
326      void EngineChannel::SetOutputChannel(uint EngineAudioChannel, uint AudioDeviceChannel) {      void EngineChannel::SetOutputChannel(uint EngineAudioChannel, uint AudioDeviceChannel) {
327          if (!pEngine || !pEngine->pAudioOutputDevice) throw AudioOutputException("No audio output device connected yet.");          if (!pEngine || !pEngine->pAudioOutputDevice) throw AudioOutputException("No audio output device connected yet.");
328    
# Line 286  namespace LinuxSampler { namespace gig { Line 330  namespace LinuxSampler { namespace gig {
330          if (!pChannel) throw AudioOutputException("Invalid audio output device channel " + ToString(AudioDeviceChannel));          if (!pChannel) throw AudioOutputException("Invalid audio output device channel " + ToString(AudioDeviceChannel));
331          switch (EngineAudioChannel) {          switch (EngineAudioChannel) {
332              case 0: // left output channel              case 0: // left output channel
333                  pOutputLeft = pChannel->Buffer();                  if (fxSends.empty()) pChannelLeft = pChannel;
334                  AudioDeviceChannelLeft = AudioDeviceChannel;                  AudioDeviceChannelLeft = AudioDeviceChannel;
335                  break;                  break;
336              case 1: // right output channel              case 1: // right output channel
337                  pOutputRight = pChannel->Buffer();                  if (fxSends.empty()) pChannelRight = pChannel;
338                  AudioDeviceChannelRight = AudioDeviceChannel;                  AudioDeviceChannelRight = AudioDeviceChannel;
339                  break;                  break;
340              default:              default:
341                  throw AudioOutputException("Invalid engine audio channel " + ToString(EngineAudioChannel));                  throw AudioOutputException("Invalid engine audio channel " + ToString(EngineAudioChannel));
342          }          }
343    
344            bStatusChanged = true;
345      }      }
346    
347      int EngineChannel::OutputChannel(uint EngineAudioChannel) {      int EngineChannel::OutputChannel(uint EngineAudioChannel) {
# Line 309  namespace LinuxSampler { namespace gig { Line 355  namespace LinuxSampler { namespace gig {
355          }          }
356      }      }
357    
358        void EngineChannel::Connect(MidiInputPort* pMidiPort, midi_chan_t MidiChannel) {
359            if (!pMidiPort || pMidiPort == this->pMidiInputPort) return;
360            DisconnectMidiInputPort();
361            this->pMidiInputPort = pMidiPort;
362            this->midiChannel    = MidiChannel;
363            pMidiPort->Connect(this, MidiChannel);
364        }
365    
366        void EngineChannel::DisconnectMidiInputPort() {
367            MidiInputPort* pOldPort = this->pMidiInputPort;
368            this->pMidiInputPort = NULL;
369            if (pOldPort) pOldPort->Disconnect(this);
370        }
371    
372        MidiInputPort* EngineChannel::GetMidiInputPort() {
373            return pMidiInputPort;
374        }
375    
376        midi_chan_t EngineChannel::MidiChannel() {
377            return midiChannel;
378        }
379    
380        FxSend* EngineChannel::AddFxSend(uint8_t MidiCtrl, String Name) throw (Exception) {
381            if (pEngine) pEngine->DisableAndLock();
382            FxSend* pFxSend = new FxSend(this, MidiCtrl, Name);
383            if (fxSends.empty()) {
384                if (pEngine && pEngine->pAudioOutputDevice) {
385                    AudioOutputDevice* pDevice = pEngine->pAudioOutputDevice;
386                    // create local render buffers
387                    pChannelLeft  = new AudioChannel(0, pDevice->MaxSamplesPerCycle());
388                    pChannelRight = new AudioChannel(1, pDevice->MaxSamplesPerCycle());
389                } else {
390                    // postpone local render buffer creation until audio device is assigned
391                    pChannelLeft  = NULL;
392                    pChannelRight = NULL;
393                }
394            }
395            fxSends.push_back(pFxSend);
396            if (pEngine) pEngine->Enable();
397            fireFxSendCountChanged(iSamplerChannelIndex, GetFxSendCount());
398            
399            return pFxSend;
400        }
401    
402        FxSend* EngineChannel::GetFxSend(uint FxSendIndex) {
403            return (FxSendIndex < fxSends.size()) ? fxSends[FxSendIndex] : NULL;
404        }
405    
406        uint EngineChannel::GetFxSendCount() {
407            return fxSends.size();
408        }
409    
410        void EngineChannel::RemoveFxSend(FxSend* pFxSend) {
411            if (pEngine) pEngine->DisableAndLock();
412            for (
413                std::vector<FxSend*>::iterator iter = fxSends.begin();
414                iter != fxSends.end(); iter++
415            ) {
416                if (*iter == pFxSend) {
417                    delete pFxSend;
418                    fxSends.erase(iter);
419                    if (fxSends.empty()) {
420                        // destroy local render buffers
421                        if (pChannelLeft)  delete pChannelLeft;
422                        if (pChannelRight) delete pChannelRight;
423                        // fallback to render directly into AudioOutputDevice's buffers
424                        if (pEngine && pEngine->pAudioOutputDevice) {
425                            pChannelLeft  = pEngine->pAudioOutputDevice->Channel(AudioDeviceChannelLeft);
426                            pChannelRight = pEngine->pAudioOutputDevice->Channel(AudioDeviceChannelRight);
427                        } else { // we update the pointers later
428                            pChannelLeft  = NULL;
429                            pChannelRight = NULL;
430                        }
431                    }
432                    break;
433                }
434            }
435            if (pEngine) pEngine->Enable();
436            fireFxSendCountChanged(iSamplerChannelIndex, GetFxSendCount());
437        }
438    
439      /**      /**
440       *  Will be called by the MIDIIn Thread to let the audio thread trigger a new       *  Will be called by the MIDIIn Thread to let the audio thread trigger a new
441       *  voice for the given key.       *  voice for the given key. This method is meant for real time rendering,
442         *  that is an event will immediately be created with the current system
443         *  time as time stamp.
444       *       *
445       *  @param Key      - MIDI key number of the triggered key       *  @param Key      - MIDI key number of the triggered key
446       *  @param Velocity - MIDI velocity value of the triggered key       *  @param Velocity - MIDI velocity value of the triggered key
# Line 329  namespace LinuxSampler { namespace gig { Line 458  namespace LinuxSampler { namespace gig {
458      }      }
459    
460      /**      /**
461         *  Will be called by the MIDIIn Thread to let the audio thread trigger a new
462         *  voice for the given key. This method is meant for offline rendering
463         *  and / or for cases where the exact position of the event in the current
464         *  audio fragment is already known.
465         *
466         *  @param Key         - MIDI key number of the triggered key
467         *  @param Velocity    - MIDI velocity value of the triggered key
468         *  @param FragmentPos - sample point position in the current audio
469         *                       fragment to which this event belongs to
470         */
471        void EngineChannel::SendNoteOn(uint8_t Key, uint8_t Velocity, int32_t FragmentPos) {
472            if (FragmentPos < 0) {
473                dmsg(1,("EngineChannel::SendNoteOn(): negative FragmentPos! Seems MIDI driver is buggy!"));
474            }
475            else if (pEngine) {
476                Event event               = pEngine->pEventGenerator->CreateEvent(FragmentPos);
477                event.Type                = Event::type_note_on;
478                event.Param.Note.Key      = Key;
479                event.Param.Note.Velocity = Velocity;
480                event.pEngineChannel      = this;
481                if (this->pEventQueue->write_space() > 0) this->pEventQueue->push(&event);
482                else dmsg(1,("EngineChannel: Input event queue full!"));
483            }
484        }
485    
486        /**
487       *  Will be called by the MIDIIn Thread to signal the audio thread to release       *  Will be called by the MIDIIn Thread to signal the audio thread to release
488       *  voice(s) on the given key.       *  voice(s) on the given key. This method is meant for real time rendering,
489         *  that is an event will immediately be created with the current system
490         *  time as time stamp.
491       *       *
492       *  @param Key      - MIDI key number of the released key       *  @param Key      - MIDI key number of the released key
493       *  @param Velocity - MIDI release velocity value of the released key       *  @param Velocity - MIDI release velocity value of the released key
# Line 348  namespace LinuxSampler { namespace gig { Line 505  namespace LinuxSampler { namespace gig {
505      }      }
506    
507      /**      /**
508         *  Will be called by the MIDIIn Thread to signal the audio thread to release
509         *  voice(s) on the given key. This method is meant for offline rendering
510         *  and / or for cases where the exact position of the event in the current
511         *  audio fragment is already known.
512         *
513         *  @param Key         - MIDI key number of the released key
514         *  @param Velocity    - MIDI release velocity value of the released key
515         *  @param FragmentPos - sample point position in the current audio
516         *                       fragment to which this event belongs to
517         */
518        void EngineChannel::SendNoteOff(uint8_t Key, uint8_t Velocity, int32_t FragmentPos) {
519            if (FragmentPos < 0) {
520                dmsg(1,("EngineChannel::SendNoteOff(): negative FragmentPos! Seems MIDI driver is buggy!"));
521            }
522            else if (pEngine) {
523                Event event               = pEngine->pEventGenerator->CreateEvent(FragmentPos);
524                event.Type                = Event::type_note_off;
525                event.Param.Note.Key      = Key;
526                event.Param.Note.Velocity = Velocity;
527                event.pEngineChannel      = this;
528                if (this->pEventQueue->write_space() > 0) this->pEventQueue->push(&event);
529                else dmsg(1,("EngineChannel: Input event queue full!"));
530            }
531        }
532    
533        /**
534       *  Will be called by the MIDIIn Thread to signal the audio thread to change       *  Will be called by the MIDIIn Thread to signal the audio thread to change
535       *  the pitch value for all voices.       *  the pitch value for all voices. This method is meant for real time
536         *  rendering, that is an event will immediately be created with the
537         *  current system time as time stamp.
538       *       *
539       *  @param Pitch - MIDI pitch value (-8192 ... +8191)       *  @param Pitch - MIDI pitch value (-8192 ... +8191)
540       */       */
# Line 365  namespace LinuxSampler { namespace gig { Line 550  namespace LinuxSampler { namespace gig {
550      }      }
551    
552      /**      /**
553         *  Will be called by the MIDIIn Thread to signal the audio thread to change
554         *  the pitch value for all voices. This method is meant for offline
555         *  rendering and / or for cases where the exact position of the event in
556         *  the current audio fragment is already known.
557         *
558         *  @param Pitch       - MIDI pitch value (-8192 ... +8191)
559         *  @param FragmentPos - sample point position in the current audio
560         *                       fragment to which this event belongs to
561         */
562        void EngineChannel::SendPitchbend(int Pitch, int32_t FragmentPos) {
563            if (FragmentPos < 0) {
564                dmsg(1,("EngineChannel::SendPitchBend(): negative FragmentPos! Seems MIDI driver is buggy!"));
565            }
566            else if (pEngine) {
567                Event event             = pEngine->pEventGenerator->CreateEvent(FragmentPos);
568                event.Type              = Event::type_pitchbend;
569                event.Param.Pitch.Pitch = Pitch;
570                event.pEngineChannel    = this;
571                if (this->pEventQueue->write_space() > 0) this->pEventQueue->push(&event);
572                else dmsg(1,("EngineChannel: Input event queue full!"));
573            }
574        }
575    
576        /**
577       *  Will be called by the MIDIIn Thread to signal the audio thread that a       *  Will be called by the MIDIIn Thread to signal the audio thread that a
578       *  continuous controller value has changed.       *  continuous controller value has changed. This method is meant for real
579         *  time rendering, that is an event will immediately be created with the
580         *  current system time as time stamp.
581       *       *
582       *  @param Controller - MIDI controller number of the occured control change       *  @param Controller - MIDI controller number of the occured control change
583       *  @param Value      - value of the control change       *  @param Value      - value of the control change
# Line 383  namespace LinuxSampler { namespace gig { Line 594  namespace LinuxSampler { namespace gig {
594          }          }
595      }      }
596    
597        /**
598         *  Will be called by the MIDIIn Thread to signal the audio thread that a
599         *  continuous controller value has changed. This method is meant for
600         *  offline rendering and / or for cases where the exact position of the
601         *  event in the current audio fragment is already known.
602         *
603         *  @param Controller  - MIDI controller number of the occured control change
604         *  @param Value       - value of the control change
605         *  @param FragmentPos - sample point position in the current audio
606         *                       fragment to which this event belongs to
607         */
608        void EngineChannel::SendControlChange(uint8_t Controller, uint8_t Value, int32_t FragmentPos) {
609            if (FragmentPos < 0) {
610                dmsg(1,("EngineChannel::SendControlChange(): negative FragmentPos! Seems MIDI driver is buggy!"));
611            }
612            else if (pEngine) {
613                Event event               = pEngine->pEventGenerator->CreateEvent(FragmentPos);
614                event.Type                = Event::type_control_change;
615                event.Param.CC.Controller = Controller;
616                event.Param.CC.Value      = Value;
617                event.pEngineChannel      = this;
618                if (this->pEventQueue->write_space() > 0) this->pEventQueue->push(&event);
619                else dmsg(1,("EngineChannel: Input event queue full!"));
620            }
621        }
622    
623      void EngineChannel::ClearEventLists() {      void EngineChannel::ClearEventLists() {
624          pEvents->clear();          pEvents->clear();
         pCCEvents->clear();  
         for (uint i = 0; i < Event::destination_count; i++) {  
             pSynthesisEvents[i]->clear();  
         }  
625          // empty MIDI key specific event lists          // empty MIDI key specific event lists
626          {          {
627              RTList<uint>::Iterator iuiKey = pActiveKeys->first();              RTList<uint>::Iterator iuiKey = pActiveKeys->first();
# Line 400  namespace LinuxSampler { namespace gig { Line 633  namespace LinuxSampler { namespace gig {
633      }      }
634    
635      void EngineChannel::ResetControllers() {      void EngineChannel::ResetControllers() {
636            Pitch          = 0;
637            SustainPedal   = false;
638            SostenutoPedal = false;
639            GlobalVolume   = 1.0f;
640            MidiVolume     = 1.0;
641            GlobalPanLeft  = 1.0f;
642            GlobalPanRight = 1.0f;
643            GlobalTranspose = 0;
644          // set all MIDI controller values to zero          // set all MIDI controller values to zero
645          memset(ControllerTable, 0x00, 128);          memset(ControllerTable, 0x00, 129);
646            // reset all FX Send levels
647            for (
648                std::vector<FxSend*>::iterator iter = fxSends.begin();
649                iter != fxSends.end(); iter++
650            ) {
651                (*iter)->Reset();
652            }
653      }      }
654    
655      /**      /**
# Line 418  namespace LinuxSampler { namespace gig { Line 666  namespace LinuxSampler { namespace gig {
666       *                  current audio cycle       *                  current audio cycle
667       */       */
668      void EngineChannel::ImportEvents(uint Samples) {      void EngineChannel::ImportEvents(uint Samples) {
669          RingBuffer<Event>::NonVolatileReader eventQueueReader = pEventQueue->get_non_volatile_reader();          RingBuffer<Event,false>::NonVolatileReader eventQueueReader = pEventQueue->get_non_volatile_reader();
670          Event* pEvent;          Event* pEvent;
671          while (true) {          while (true) {
672              // get next event from input event queue              // get next event from input event queue
# Line 440  namespace LinuxSampler { namespace gig { Line 688  namespace LinuxSampler { namespace gig {
688          eventQueueReader.free(); // free all copied events from input queue          eventQueueReader.free(); // free all copied events from input queue
689      }      }
690    
691        void EngineChannel::RemoveAllFxSends() {
692            if (pEngine) pEngine->DisableAndLock();
693            if (!fxSends.empty()) { // free local render buffers
694                if (pChannelLeft) {
695                    delete pChannelLeft;
696                    if (pEngine && pEngine->pAudioOutputDevice) {
697                        // fallback to render directly to the AudioOutputDevice's buffer
698                        pChannelLeft = pEngine->pAudioOutputDevice->Channel(AudioDeviceChannelLeft);
699                    } else pChannelLeft = NULL;
700                }
701                if (pChannelRight) {
702                    delete pChannelRight;
703                    if (pEngine && pEngine->pAudioOutputDevice) {
704                        // fallback to render directly to the AudioOutputDevice's buffer
705                        pChannelRight = pEngine->pAudioOutputDevice->Channel(AudioDeviceChannelRight);
706                    } else pChannelRight = NULL;
707                }
708            }
709            for (int i = 0; i < fxSends.size(); i++) delete fxSends[i];
710            fxSends.clear();
711            if (pEngine) pEngine->Enable();
712        }
713    
714      float EngineChannel::Volume() {      float EngineChannel::Volume() {
715          return GlobalVolume;          return GlobalVolume;
716      }      }
717    
718      void EngineChannel::Volume(float f) {      void EngineChannel::Volume(float f) {
719          GlobalVolume = f;          GlobalVolume = f;
720            bStatusChanged = true; // status of engine channel has changed, so set notify flag
721      }      }
722    
723      uint EngineChannel::Channels() {      uint EngineChannel::Channels() {
# Line 471  namespace LinuxSampler { namespace gig { Line 743  namespace LinuxSampler { namespace gig {
743      String EngineChannel::EngineName() {      String EngineChannel::EngineName() {
744          return LS_GIG_ENGINE_NAME;          return LS_GIG_ENGINE_NAME;
745      }      }
746        
747  }} // namespace LinuxSampler::gig  }} // namespace LinuxSampler::gig
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