/[svn]/linuxsampler/trunk/src/engines/common/AbstractVoice.cpp
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Diff of /linuxsampler/trunk/src/engines/common/AbstractVoice.cpp

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revision 2216 by iliev, Mon Jul 25 17:21:16 2011 UTC revision 2297 by iliev, Fri Dec 9 15:04:55 2011 UTC
# Line 26  Line 26 
26    
27  namespace LinuxSampler {  namespace LinuxSampler {
28    
29      AbstractVoice::AbstractVoice() {      AbstractVoice::AbstractVoice(SignalUnitRack* pRack): pSignalUnitRack(pRack) {
30          pEngineChannel = NULL;          pEngineChannel = NULL;
31          pLFO1 = new LFOUnsigned(1.0f);  // amplitude LFO (0..1 range)          pLFO1 = new LFOUnsigned(1.0f);  // amplitude LFO (0..1 range)
32          pLFO2 = new LFOUnsigned(1.0f);  // filter LFO (0..1 range)          pLFO2 = new LFOUnsigned(1.0f);  // filter LFO (0..1 range)
# Line 99  namespace LinuxSampler { Line 99  namespace LinuxSampler {
99    
100          Type            = VoiceType;          Type            = VoiceType;
101          MIDIKey         = itNoteOnEvent->Param.Note.Key;          MIDIKey         = itNoteOnEvent->Param.Note.Key;
102            MIDIVelocity    = itNoteOnEvent->Param.Note.Velocity;
103            MIDIPan         = pEngineChannel->ControllerTable[10];
104            if (MIDIPan == 0 && pEngineChannel->GlobalPanRight == 1) MIDIPan = 64; // workaround used to determine whether the MIDI pan has not been set
105          PlaybackState   = playback_state_init; // mark voice as triggered, but no audio rendered yet          PlaybackState   = playback_state_init; // mark voice as triggered, but no audio rendered yet
106          Delay           = itNoteOnEvent->FragmentPos();          Delay           = itNoteOnEvent->FragmentPos();
107          itTriggerEvent  = itNoteOnEvent;          itTriggerEvent  = itNoteOnEvent;
# Line 177  namespace LinuxSampler { Line 180  namespace LinuxSampler {
180          // the length of the decay and release curves are dependent on the velocity          // the length of the decay and release curves are dependent on the velocity
181          const double velrelease = 1 / GetVelocityRelease(itNoteOnEvent->Param.Note.Velocity);          const double velrelease = 1 / GetVelocityRelease(itNoteOnEvent->Param.Note.Velocity);
182    
183          if (GetSignalUnitRack() == NULL) { // setup EG 1 (VCA EG)          if (pSignalUnitRack == NULL) { // setup EG 1 (VCA EG)
184              // get current value of EG1 controller              // get current value of EG1 controller
185              double eg1controllervalue = GetEG1ControllerValue(itNoteOnEvent->Param.Note.Velocity);              double eg1controllervalue = GetEG1ControllerValue(itNoteOnEvent->Param.Note.Velocity);
186    
# Line 186  namespace LinuxSampler { Line 189  namespace LinuxSampler {
189    
190              TriggerEG1(egInfo, velrelease, velocityAttenuation, GetEngine()->SampleRate, itNoteOnEvent->Param.Note.Velocity);              TriggerEG1(egInfo, velrelease, velocityAttenuation, GetEngine()->SampleRate, itNoteOnEvent->Param.Note.Velocity);
191          } else {          } else {
192              GetSignalUnitRack()->Trigger();              pSignalUnitRack->Trigger();
193          }          }
194    
195  #ifdef CONFIG_INTERPOLATE_VOLUME  #ifdef CONFIG_INTERPOLATE_VOLUME
# Line 200  namespace LinuxSampler { Line 203  namespace LinuxSampler {
203      #else      #else
204          {          {
205              float finalVolume;              float finalVolume;
206              if (GetSignalUnitRack() == NULL) {              if (pSignalUnitRack == NULL) {
207                  finalVolume = pEngineChannel->MidiVolume * crossfadeVolume * pEG1->getLevel();                  finalVolume = pEngineChannel->MidiVolume * crossfadeVolume * pEG1->getLevel();
208              } else {              } else {
209                  finalVolume = pEngineChannel->MidiVolume * crossfadeVolume * GetSignalUnitRack()->GetEndpointUnit()->GetVolume();                  finalVolume = pEngineChannel->MidiVolume * crossfadeVolume * pSignalUnitRack->GetEndpointUnit()->GetVolume();
210              }              }
211    
212              finalSynthesisParameters.fFinalVolumeLeft  = finalVolume * VolumeLeft  * pEngineChannel->GlobalPanLeft;              finalSynthesisParameters.fFinalVolumeLeft  = finalVolume * VolumeLeft  * pEngineChannel->GlobalPanLeft;
# Line 212  namespace LinuxSampler { Line 215  namespace LinuxSampler {
215      #endif      #endif
216  #endif  #endif
217    
218          if (GetSignalUnitRack() == NULL) {          if (pSignalUnitRack == NULL) {
219              // setup EG 2 (VCF Cutoff EG)              // setup EG 2 (VCF Cutoff EG)
220              {              {
221                  // get current value of EG2 controller                  // get current value of EG2 controller
# Line 309  namespace LinuxSampler { Line 312  namespace LinuxSampler {
312       *  @param Skip    - number of sample points to skip in output buffer       *  @param Skip    - number of sample points to skip in output buffer
313       */       */
314      void AbstractVoice::Synthesize(uint Samples, sample_t* pSrc, uint Skip) {      void AbstractVoice::Synthesize(uint Samples, sample_t* pSrc, uint Skip) {
315            bool delay = false; // Whether the voice playback should be delayed for this call
316            
317            if (pSignalUnitRack != NULL) {
318                uint delaySteps = pSignalUnitRack->GetEndpointUnit()->DelayTrigger();
319                if (delaySteps > 0) { // delay on the endpoint unit means delay of the voice playback
320                    if (delaySteps >= Samples) {
321                        pSignalUnitRack->GetEndpointUnit()->DecreaseDelay(Samples);
322                        delay = true;
323                    } else {
324                        pSignalUnitRack->GetEndpointUnit()->DecreaseDelay(delaySteps);
325                        Samples -= delaySteps;
326                        Skip += delaySteps;
327                    }
328                }
329            }
330            
331          AbstractEngineChannel* pChannel = pEngineChannel;          AbstractEngineChannel* pChannel = pEngineChannel;
332          MidiKeyBase* pMidiKeyInfo = GetMidiKeyInfo(MIDIKey);          MidiKeyBase* pMidiKeyInfo = GetMidiKeyInfo(MIDIKey);
333    
334          const bool bVoiceRequiresDedicatedRouting =          const bool bVoiceRequiresDedicatedRouting =
335              pEngineChannel->GetFxSendCount() > 0 &&              pEngineChannel->GetFxSendCount() > 0 &&
336              (pMidiKeyInfo->ReverbSend || pMidiKeyInfo->ChorusSend);              (pMidiKeyInfo->ReverbSend || pMidiKeyInfo->ChorusSend);
337            
338            const bool bEq =
339                pSignalUnitRack != NULL && pSignalUnitRack->HasEq() && GetEngine()->pEq->HasSupport();
340    
341          if (bVoiceRequiresDedicatedRouting) {          if (bEq) {
342                GetEngine()->pEq->GetInChannelLeft()->Clear();
343                GetEngine()->pEq->GetInChannelRight()->Clear();
344                finalSynthesisParameters.pOutLeft  = &GetEngine()->pEq->GetInChannelLeft()->Buffer()[Skip];
345                finalSynthesisParameters.pOutRight = &GetEngine()->pEq->GetInChannelRight()->Buffer()[Skip];
346                pSignalUnitRack->UpdateEqSettings(GetEngine()->pEq);
347            } else if (bVoiceRequiresDedicatedRouting) {
348              finalSynthesisParameters.pOutLeft  = &GetEngine()->pDedicatedVoiceChannelLeft->Buffer()[Skip];              finalSynthesisParameters.pOutLeft  = &GetEngine()->pDedicatedVoiceChannelLeft->Buffer()[Skip];
349              finalSynthesisParameters.pOutRight = &GetEngine()->pDedicatedVoiceChannelRight->Buffer()[Skip];              finalSynthesisParameters.pOutRight = &GetEngine()->pDedicatedVoiceChannelRight->Buffer()[Skip];
350          } else {          } else {
# Line 356  namespace LinuxSampler { Line 384  namespace LinuxSampler {
384                  // drivers that use Samples < MaxSamplesPerCycle).                  // drivers that use Samples < MaxSamplesPerCycle).
385                  // End the EG1 here, at pos 0, with a shorter max fade                  // End the EG1 here, at pos 0, with a shorter max fade
386                  // out time.                  // out time.
387                  if (GetSignalUnitRack() == NULL) {                  if (pSignalUnitRack == NULL) {
388                      pEG1->enterFadeOutStage(Samples / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);                      pEG1->enterFadeOutStage(Samples / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
389                  } else {                  } else {
390                      // TODO:                      // TODO:
# Line 377  namespace LinuxSampler { Line 405  namespace LinuxSampler {
405    
406              // process MIDI control change and pitchbend events for this subfragment              // process MIDI control change and pitchbend events for this subfragment
407              processCCEvents(itCCEvent, iSubFragmentEnd);              processCCEvents(itCCEvent, iSubFragmentEnd);
408                uint8_t pan = MIDIPan;
409                if (pSignalUnitRack != NULL) pan = pSignalUnitRack->GetEndpointUnit()->CaluclatePan(pan);
410                
411                PanLeftSmoother.update(AbstractEngine::PanCurve[128 - pan]);
412                PanRightSmoother.update(AbstractEngine::PanCurve[pan]);
413    
414              finalSynthesisParameters.fFinalPitch = Pitch.PitchBase * Pitch.PitchBend;              finalSynthesisParameters.fFinalPitch = Pitch.PitchBase * Pitch.PitchBend;
415              float fFinalVolume = VolumeSmoother.render() * CrossfadeSmoother.render();              float fFinalVolume = VolumeSmoother.render() * CrossfadeSmoother.render();
# Line 387  namespace LinuxSampler { Line 420  namespace LinuxSampler {
420              // process transition events (note on, note off & sustain pedal)              // process transition events (note on, note off & sustain pedal)
421              processTransitionEvents(itNoteEvent, iSubFragmentEnd);              processTransitionEvents(itNoteEvent, iSubFragmentEnd);
422              processGroupEvents(itGroupEvent, iSubFragmentEnd);              processGroupEvents(itGroupEvent, iSubFragmentEnd);
423                
424              if (GetSignalUnitRack() == NULL) {              if (pSignalUnitRack == NULL) {
425                  // if the voice was killed in this subfragment, or if the                  // if the voice was killed in this subfragment, or if the
426                  // filter EG is finished, switch EG1 to fade out stage                  // filter EG is finished, switch EG1 to fade out stage
427                  if ((itKillEvent && killPos <= iSubFragmentEnd) ||                  if ((itKillEvent && killPos <= iSubFragmentEnd) ||
# Line 444  namespace LinuxSampler { Line 477  namespace LinuxSampler {
477                  }*/                  }*/
478                  // TODO: ^^^                  // TODO: ^^^
479    
480                  fFinalVolume   *= GetSignalUnitRack()->GetEndpointUnit()->GetVolume();                  fFinalVolume   *= pSignalUnitRack->GetEndpointUnit()->GetVolume();
481                  fFinalCutoff    = GetSignalUnitRack()->GetEndpointUnit()->CalculateFilterCutoff(fFinalCutoff);                  fFinalCutoff    = pSignalUnitRack->GetEndpointUnit()->CalculateFilterCutoff(fFinalCutoff);
482                  fFinalResonance = GetSignalUnitRack()->GetEndpointUnit()->CalculateResonance(fFinalResonance);                  fFinalResonance = pSignalUnitRack->GetEndpointUnit()->CalculateResonance(fFinalResonance);
483                                    
484                  finalSynthesisParameters.fFinalPitch =                  finalSynthesisParameters.fFinalPitch =
485                      GetSignalUnitRack()->GetEndpointUnit()->CalculatePitch(finalSynthesisParameters.fFinalPitch);                      pSignalUnitRack->GetEndpointUnit()->CalculatePitch(finalSynthesisParameters.fFinalPitch);
486                                            
487              }              }
488                            
# Line 485  namespace LinuxSampler { Line 518  namespace LinuxSampler {
518                  fFinalVolume * VolumeRight * PanRightSmoother.render();                  fFinalVolume * VolumeRight * PanRightSmoother.render();
519  #endif  #endif
520              // render audio for one subfragment              // render audio for one subfragment
521              RunSynthesisFunction(SynthesisMode, &finalSynthesisParameters, &loop);              if (!delay) RunSynthesisFunction(SynthesisMode, &finalSynthesisParameters, &loop);
522    
523              if (GetSignalUnitRack() == NULL) {              if (pSignalUnitRack == NULL) {
524                  // stop the rendering if volume EG is finished                  // stop the rendering if volume EG is finished
525                  if (pEG1->getSegmentType() == EG::segment_end) break;                  if (pEG1->getSegmentType() == EG::segment_end) break;
526              } else {              } else {
527                  // stop the rendering if the endpoint unit is not active                  // stop the rendering if the endpoint unit is not active
528                  if (!GetSignalUnitRack()->GetEndpointUnit()->Active()) break;                  if (!pSignalUnitRack->GetEndpointUnit()->Active()) break;
529              }              }
530    
531              const double newPos = Pos + (iSubFragmentEnd - i) * finalSynthesisParameters.fFinalPitch;              const double newPos = Pos + (iSubFragmentEnd - i) * finalSynthesisParameters.fFinalPitch;
532    
533              if (GetSignalUnitRack() == NULL) {              if (pSignalUnitRack == NULL) {
534                  // increment envelopes' positions                  // increment envelopes' positions
535                  if (pEG1->active()) {                  if (pEG1->active()) {
536    
# Line 522  namespace LinuxSampler { Line 555  namespace LinuxSampler {
555                      }*/                      }*/
556                  // TODO: ^^^                  // TODO: ^^^
557                                    
558                  GetSignalUnitRack()->Increment();                  if (!delay) pSignalUnitRack->Increment();
559              }              }
560    
561              Pos = newPos;              Pos = newPos;
562              i = iSubFragmentEnd;              i = iSubFragmentEnd;
563          }          }
564            
565            if (delay) return;
566    
567          if (bVoiceRequiresDedicatedRouting) {          if (bVoiceRequiresDedicatedRouting) {
568                if (bEq) {
569                    GetEngine()->pEq->RenderAudio(Samples);
570                    GetEngine()->pEq->GetOutChannelLeft()->CopyTo(GetEngine()->pDedicatedVoiceChannelLeft, Samples);
571                    GetEngine()->pEq->GetOutChannelRight()->CopyTo(GetEngine()->pDedicatedVoiceChannelRight, Samples);
572                }
573              optional<float> effectSendLevels[2] = {              optional<float> effectSendLevels[2] = {
574                  pMidiKeyInfo->ReverbSend,                  pMidiKeyInfo->ReverbSend,
575                  pMidiKeyInfo->ChorusSend                  pMidiKeyInfo->ChorusSend
576              };              };
577              GetEngine()->RouteDedicatedVoiceChannels(pEngineChannel, effectSendLevels, Samples);              GetEngine()->RouteDedicatedVoiceChannels(pEngineChannel, effectSendLevels, Samples);
578            } else if (bEq) {
579                GetEngine()->pEq->RenderAudio(Samples);
580                GetEngine()->pEq->GetOutChannelLeft()->CopyTo(pChannel->pChannelLeft, Samples);
581                GetEngine()->pEq->GetOutChannelRight()->CopyTo(pChannel->pChannelRight, Samples);
582          }          }
583      }      }
584    
# Line 554  namespace LinuxSampler { Line 598  namespace LinuxSampler {
598                  if (itEvent->Param.CC.Controller == VCFResonanceCtrl.controller) {                  if (itEvent->Param.CC.Controller == VCFResonanceCtrl.controller) {
599                      processResonanceEvent(itEvent);                      processResonanceEvent(itEvent);
600                  }                  }
601                  if (GetSignalUnitRack() == NULL) {                  if (pSignalUnitRack == NULL) {
602                      if (itEvent->Param.CC.Controller == pLFO1->ExtController) {                      if (itEvent->Param.CC.Controller == pLFO1->ExtController) {
603                          pLFO1->update(itEvent->Param.CC.Value);                          pLFO1->update(itEvent->Param.CC.Value);
604                      }                      }
# Line 568  namespace LinuxSampler { Line 612  namespace LinuxSampler {
612                  if (itEvent->Param.CC.Controller == 7) { // volume                  if (itEvent->Param.CC.Controller == 7) { // volume
613                      VolumeSmoother.update(AbstractEngine::VolumeCurve[itEvent->Param.CC.Value]);                      VolumeSmoother.update(AbstractEngine::VolumeCurve[itEvent->Param.CC.Value]);
614                  } else if (itEvent->Param.CC.Controller == 10) { // panpot                  } else if (itEvent->Param.CC.Controller == 10) { // panpot
615                      PanLeftSmoother.update(AbstractEngine::PanCurve[128 - itEvent->Param.CC.Value]);                      MIDIPan = itEvent->Param.CC.Value;
                     PanRightSmoother.update(AbstractEngine::PanCurve[itEvent->Param.CC.Value]);  
616                  }                  }
617              } else if (itEvent->Type == Event::type_pitchbend) { // if pitch bend event              } else if (itEvent->Type == Event::type_pitchbend) { // if pitch bend event
618                  processPitchEvent(itEvent);                  processPitchEvent(itEvent);
619              }              }
620    
621              ProcessCCEvent(itEvent);              ProcessCCEvent(itEvent);
622              if (GetSignalUnitRack() != NULL) {              if (pSignalUnitRack != NULL) {
623                  GetSignalUnitRack()->ProcessCCEvent(itEvent);                  pSignalUnitRack->ProcessCCEvent(itEvent);
624              }              }
625          }          }
626      }      }
# Line 610  namespace LinuxSampler { Line 653  namespace LinuxSampler {
653                  if (itEvent->Type == Event::type_release) {                  if (itEvent->Type == Event::type_release) {
654                      EnterReleaseStage();                      EnterReleaseStage();
655                  } else if (itEvent->Type == Event::type_cancel_release) {                  } else if (itEvent->Type == Event::type_cancel_release) {
656                      if (GetSignalUnitRack() == NULL) {                      if (pSignalUnitRack == NULL) {
657                          pEG1->update(EG::event_cancel_release, GetEngine()->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);                          pEG1->update(EG::event_cancel_release, GetEngine()->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
658                          pEG2->update(EG::event_cancel_release, GetEngine()->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);                          pEG2->update(EG::event_cancel_release, GetEngine()->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
659                      } else {                      } else {
660                          GetSignalUnitRack()->CancelRelease();                          pSignalUnitRack->CancelRelease();
661                      }                      }
662                  }                  }
663              }              }
# Line 642  namespace LinuxSampler { Line 685  namespace LinuxSampler {
685       * @param itNoteOffEvent - event which causes this voice to die soon       * @param itNoteOffEvent - event which causes this voice to die soon
686       */       */
687      void AbstractVoice::UpdatePortamentoPos(Pool<Event>::Iterator& itNoteOffEvent) {      void AbstractVoice::UpdatePortamentoPos(Pool<Event>::Iterator& itNoteOffEvent) {
688          if (GetSignalUnitRack() == NULL) {          if (pSignalUnitRack == NULL) {
689              const float fFinalEG3Level = EG3.level(itNoteOffEvent->FragmentPos());              const float fFinalEG3Level = EG3.level(itNoteOffEvent->FragmentPos());
690              pEngineChannel->PortamentoPos = (float) MIDIKey + RTMath::FreqRatioToCents(fFinalEG3Level) * 0.01f;              pEngineChannel->PortamentoPos = (float) MIDIKey + RTMath::FreqRatioToCents(fFinalEG3Level) * 0.01f;
691          } else {          } else {
# Line 709  namespace LinuxSampler { Line 752  namespace LinuxSampler {
752      }      }
753    
754      void AbstractVoice::EnterReleaseStage() {      void AbstractVoice::EnterReleaseStage() {
755          if (GetSignalUnitRack() == NULL) {          if (pSignalUnitRack == NULL) {
756              pEG1->update(EG::event_release, GetEngine()->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);              pEG1->update(EG::event_release, GetEngine()->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
757              pEG2->update(EG::event_release, GetEngine()->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);              pEG2->update(EG::event_release, GetEngine()->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
758          } else {          } else {
759              GetSignalUnitRack()->EnterReleaseStage();              pSignalUnitRack->EnterReleaseStage();
760          }          }
761      }      }
762    
763      bool AbstractVoice::EG1Finished() {      bool AbstractVoice::EG1Finished() {
764          if (GetSignalUnitRack() == NULL) {          if (pSignalUnitRack == NULL) {
765              return pEG1->getSegmentType() == EG::segment_end;              return pEG1->getSegmentType() == EG::segment_end;
766          } else {          } else {
767              return !GetSignalUnitRack()->GetEndpointUnit()->Active();              return !pSignalUnitRack->GetEndpointUnit()->Active();
768          }          }
769      }      }
770    
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