/[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 2219 by iliev, Thu Jul 28 12:35:49 2011 UTC revision 2448 by schoenebeck, Fri May 3 14:26:32 2013 UTC
# Line 4  Line 4 
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) 2005-2008 Christian Schoenebeck                         *   *   Copyright (C) 2005-2008 Christian Schoenebeck                         *
7   *   Copyright (C) 2009-2011 Christian Schoenebeck and Grigor Iliev        *   *   Copyright (C) 2009-2012 Christian Schoenebeck and Grigor Iliev        *
8   *                                                                         *   *                                                                         *
9   *   This program is free software; you can redistribute it and/or modify  *   *   This program is free software; you can redistribute it and/or modify  *
10   *   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 43  namespace LinuxSampler { Line 43  namespace LinuxSampler {
43    
44          finalSynthesisParameters.filterLeft.Reset();          finalSynthesisParameters.filterLeft.Reset();
45          finalSynthesisParameters.filterRight.Reset();          finalSynthesisParameters.filterRight.Reset();
46            
47            pEq          = NULL;
48            bEqSupport   = false;
49      }      }
50    
51      AbstractVoice::~AbstractVoice() {      AbstractVoice::~AbstractVoice() {
52          if (pLFO1) delete pLFO1;          if (pLFO1) delete pLFO1;
53          if (pLFO2) delete pLFO2;          if (pLFO2) delete pLFO2;
54          if (pLFO3) delete pLFO3;          if (pLFO3) delete pLFO3;
55            
56            if(pEq != NULL) delete pEq;
57        }
58                
59        void AbstractVoice::CreateEq() {
60            if(!bEqSupport) return;
61            if(pEq != NULL) delete pEq;
62            pEq = new EqSupport;
63            pEq->InitEffect(GetEngine()->pAudioOutputDevice);
64      }      }
65    
66      /**      /**
# Line 100  namespace LinuxSampler { Line 112  namespace LinuxSampler {
112          Type            = VoiceType;          Type            = VoiceType;
113          MIDIKey         = itNoteOnEvent->Param.Note.Key;          MIDIKey         = itNoteOnEvent->Param.Note.Key;
114          MIDIVelocity    = itNoteOnEvent->Param.Note.Velocity;          MIDIVelocity    = itNoteOnEvent->Param.Note.Velocity;
         MIDIPan         = pEngineChannel->ControllerTable[10];  
         if (MIDIPan == 0 && pEngineChannel->GlobalPanRight == 1) MIDIPan = 64; // workaround used to determine whether the MIDI pan has not been set  
115          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
116          Delay           = itNoteOnEvent->FragmentPos();          Delay           = itNoteOnEvent->FragmentPos();
117          itTriggerEvent  = itNoteOnEvent;          itTriggerEvent  = itNoteOnEvent;
# Line 114  namespace LinuxSampler { Line 124  namespace LinuxSampler {
124          RgnInfo    = GetRegionInfo();          RgnInfo    = GetRegionInfo();
125          InstrInfo  = GetInstrumentInfo();          InstrInfo  = GetInstrumentInfo();
126                    
127            MIDIPan    = CalculatePan(pEngineChannel->iLastPanRequest);
128    
129          AboutToTrigger();          AboutToTrigger();
130    
131          // calculate volume          // calculate volume
# Line 129  namespace LinuxSampler { Line 141  namespace LinuxSampler {
141          // get starting crossfade volume level          // get starting crossfade volume level
142          float crossfadeVolume = CalculateCrossfadeVolume(itNoteOnEvent->Param.Note.Velocity);          float crossfadeVolume = CalculateCrossfadeVolume(itNoteOnEvent->Param.Note.Velocity);
143    
144          VolumeLeft  = volume * pKeyInfo->PanLeft  * AbstractEngine::PanCurve[64 - RgnInfo.Pan];          VolumeLeft  = volume * pKeyInfo->PanLeft;
145          VolumeRight = volume * pKeyInfo->PanRight * AbstractEngine::PanCurve[64 + RgnInfo.Pan];          VolumeRight = volume * pKeyInfo->PanRight;
146    
147          float subfragmentRate = GetEngine()->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE;          float subfragmentRate = GetEngine()->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE;
148          CrossfadeSmoother.trigger(crossfadeVolume, subfragmentRate);          CrossfadeSmoother.trigger(crossfadeVolume, subfragmentRate);
149          VolumeSmoother.trigger(pEngineChannel->MidiVolume, subfragmentRate);          VolumeSmoother.trigger(pEngineChannel->MidiVolume, subfragmentRate);
         PanLeftSmoother.trigger(pEngineChannel->GlobalPanLeft, subfragmentRate);  
         PanRightSmoother.trigger(pEngineChannel->GlobalPanRight, subfragmentRate);  
150    
151          // Check if the sample needs disk streaming or is too short for that          // Check if the sample needs disk streaming or is too short for that
152          long cachedsamples = GetSampleCacheSize() / SmplInfo.FrameSize;          long cachedsamples = GetSampleCacheSize() / SmplInfo.FrameSize;
# Line 192  namespace LinuxSampler { Line 202  namespace LinuxSampler {
202              pSignalUnitRack->Trigger();              pSignalUnitRack->Trigger();
203          }          }
204    
205            uint8_t pan = MIDIPan;
206            if (pSignalUnitRack) pan = pSignalUnitRack->GetEndpointUnit()->CalculatePan(MIDIPan);
207            PanLeftSmoother.trigger(AbstractEngine::PanCurve[128 - pan], subfragmentRate);
208            PanRightSmoother.trigger(AbstractEngine::PanCurve[pan], subfragmentRate);
209    
210  #ifdef CONFIG_INTERPOLATE_VOLUME  #ifdef CONFIG_INTERPOLATE_VOLUME
211          // setup initial volume in synthesis parameters          // setup initial volume in synthesis parameters
212      #ifdef CONFIG_PROCESS_MUTED_CHANNELS      #ifdef CONFIG_PROCESS_MUTED_CHANNELS
# Line 209  namespace LinuxSampler { Line 224  namespace LinuxSampler {
224                  finalVolume = pEngineChannel->MidiVolume * crossfadeVolume * pSignalUnitRack->GetEndpointUnit()->GetVolume();                  finalVolume = pEngineChannel->MidiVolume * crossfadeVolume * pSignalUnitRack->GetEndpointUnit()->GetVolume();
225              }              }
226    
227              finalSynthesisParameters.fFinalVolumeLeft  = finalVolume * VolumeLeft  * pEngineChannel->GlobalPanLeft;              finalSynthesisParameters.fFinalVolumeLeft  = finalVolume * VolumeLeft  * PanLeftSmoother.render();
228              finalSynthesisParameters.fFinalVolumeRight = finalVolume * VolumeRight * pEngineChannel->GlobalPanRight;              finalSynthesisParameters.fFinalVolumeRight = finalVolume * VolumeRight * PanRightSmoother.render();
229          }          }
230      #endif      #endif
231  #endif  #endif
# Line 294  namespace LinuxSampler { Line 309  namespace LinuxSampler {
309              VCFCutoffCtrl.controller    = 0;              VCFCutoffCtrl.controller    = 0;
310              VCFResonanceCtrl.controller = 0;              VCFResonanceCtrl.controller = 0;
311          }          }
312            
313            const bool bEq =
314                pSignalUnitRack != NULL && pSignalUnitRack->HasEq() && pEq->HasSupport();
315    
316            if (bEq) {
317                pEq->GetInChannelLeft()->Clear();
318                pEq->GetInChannelRight()->Clear();
319                pEq->RenderAudio(GetEngine()->pAudioOutputDevice->MaxSamplesPerCycle());
320            }
321    
322          return 0; // success          return 0; // success
323      }      }
# Line 312  namespace LinuxSampler { Line 336  namespace LinuxSampler {
336       *  @param Skip    - number of sample points to skip in output buffer       *  @param Skip    - number of sample points to skip in output buffer
337       */       */
338      void AbstractVoice::Synthesize(uint Samples, sample_t* pSrc, uint Skip) {      void AbstractVoice::Synthesize(uint Samples, sample_t* pSrc, uint Skip) {
339            bool delay = false; // Whether the voice playback should be delayed for this call
340            
341            if (pSignalUnitRack != NULL) {
342                uint delaySteps = pSignalUnitRack->GetEndpointUnit()->DelayTrigger();
343                if (delaySteps > 0) { // delay on the endpoint unit means delay of the voice playback
344                    if (delaySteps >= Samples) {
345                        pSignalUnitRack->GetEndpointUnit()->DecreaseDelay(Samples);
346                        delay = true;
347                    } else {
348                        pSignalUnitRack->GetEndpointUnit()->DecreaseDelay(delaySteps);
349                        Samples -= delaySteps;
350                        Skip += delaySteps;
351                    }
352                }
353            }
354            
355          AbstractEngineChannel* pChannel = pEngineChannel;          AbstractEngineChannel* pChannel = pEngineChannel;
356          MidiKeyBase* pMidiKeyInfo = GetMidiKeyInfo(MIDIKey);          MidiKeyBase* pMidiKeyInfo = GetMidiKeyInfo(MIDIKey);
357    
358          const bool bVoiceRequiresDedicatedRouting =          const bool bVoiceRequiresDedicatedRouting =
359              pEngineChannel->GetFxSendCount() > 0 &&              pEngineChannel->GetFxSendCount() > 0 &&
360              (pMidiKeyInfo->ReverbSend || pMidiKeyInfo->ChorusSend);              (pMidiKeyInfo->ReverbSend || pMidiKeyInfo->ChorusSend);
361            
362            const bool bEq =
363                pSignalUnitRack != NULL && pSignalUnitRack->HasEq() && pEq->HasSupport();
364    
365          if (bVoiceRequiresDedicatedRouting) {          if (bEq) {
366                pEq->GetInChannelLeft()->Clear();
367                pEq->GetInChannelRight()->Clear();
368                finalSynthesisParameters.pOutLeft  = &pEq->GetInChannelLeft()->Buffer()[Skip];
369                finalSynthesisParameters.pOutRight = &pEq->GetInChannelRight()->Buffer()[Skip];
370                pSignalUnitRack->UpdateEqSettings(pEq);
371            } else if (bVoiceRequiresDedicatedRouting) {
372              finalSynthesisParameters.pOutLeft  = &GetEngine()->pDedicatedVoiceChannelLeft->Buffer()[Skip];              finalSynthesisParameters.pOutLeft  = &GetEngine()->pDedicatedVoiceChannelLeft->Buffer()[Skip];
373              finalSynthesisParameters.pOutRight = &GetEngine()->pDedicatedVoiceChannelRight->Buffer()[Skip];              finalSynthesisParameters.pOutRight = &GetEngine()->pDedicatedVoiceChannelRight->Buffer()[Skip];
374          } else {          } else {
# Line 333  namespace LinuxSampler { Line 382  namespace LinuxSampler {
382          GetFirstEventOnKey(MIDIKey, itNoteEvent);          GetFirstEventOnKey(MIDIKey, itNoteEvent);
383    
384          RTList<Event>::Iterator itGroupEvent;          RTList<Event>::Iterator itGroupEvent;
385          if (pGroupEvents) itGroupEvent = pGroupEvents->first();          if (pGroupEvents && !Orphan) itGroupEvent = pGroupEvents->first();
386    
387          if (itTriggerEvent) { // skip events that happened before this voice was triggered          if (itTriggerEvent) { // skip events that happened before this voice was triggered
388              while (itCCEvent && itCCEvent->FragmentPos() <= Skip) ++itCCEvent;              while (itCCEvent && itCCEvent->FragmentPos() <= Skip) ++itCCEvent;
# Line 362  namespace LinuxSampler { Line 411  namespace LinuxSampler {
411                  if (pSignalUnitRack == NULL) {                  if (pSignalUnitRack == NULL) {
412                      pEG1->enterFadeOutStage(Samples / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);                      pEG1->enterFadeOutStage(Samples / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
413                  } else {                  } else {
414                      // TODO:                      pSignalUnitRack->EnterFadeOutStage(Samples / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
415                  }                  }
416                  itKillEvent = Pool<Event>::Iterator();                  itKillEvent = Pool<Event>::Iterator();
417              } else {              } else {
# Line 381  namespace LinuxSampler { Line 430  namespace LinuxSampler {
430              // process MIDI control change and pitchbend events for this subfragment              // process MIDI control change and pitchbend events for this subfragment
431              processCCEvents(itCCEvent, iSubFragmentEnd);              processCCEvents(itCCEvent, iSubFragmentEnd);
432              uint8_t pan = MIDIPan;              uint8_t pan = MIDIPan;
433              if (pSignalUnitRack != NULL) pan = pSignalUnitRack->GetEndpointUnit()->CaluclatePan(pan);              if (pSignalUnitRack != NULL) pan = pSignalUnitRack->GetEndpointUnit()->CalculatePan(MIDIPan);
434                            
435              PanLeftSmoother.update(AbstractEngine::PanCurve[128 - pan]);              PanLeftSmoother.update(AbstractEngine::PanCurve[128 - pan]);
436              PanRightSmoother.update(AbstractEngine::PanCurve[pan]);              PanRightSmoother.update(AbstractEngine::PanCurve[pan]);
# Line 395  namespace LinuxSampler { Line 444  namespace LinuxSampler {
444              // process transition events (note on, note off & sustain pedal)              // process transition events (note on, note off & sustain pedal)
445              processTransitionEvents(itNoteEvent, iSubFragmentEnd);              processTransitionEvents(itNoteEvent, iSubFragmentEnd);
446              processGroupEvents(itGroupEvent, iSubFragmentEnd);              processGroupEvents(itGroupEvent, iSubFragmentEnd);
447                
448              if (pSignalUnitRack == NULL) {              if (pSignalUnitRack == NULL) {
449                  // if the voice was killed in this subfragment, or if the                  // if the voice was killed in this subfragment, or if the
450                  // filter EG is finished, switch EG1 to fade out stage                  // filter EG is finished, switch EG1 to fade out stage
# Line 442  namespace LinuxSampler { Line 491  namespace LinuxSampler {
491                  if (bLFO2Enabled) fFinalCutoff *= pLFO2->render();                  if (bLFO2Enabled) fFinalCutoff *= pLFO2->render();
492                  if (bLFO3Enabled) finalSynthesisParameters.fFinalPitch *= RTMath::CentsToFreqRatio(pLFO3->render());                  if (bLFO3Enabled) finalSynthesisParameters.fFinalPitch *= RTMath::CentsToFreqRatio(pLFO3->render());
493              } else {              } else {
494                  // if the voice was killed in this subfragment, or if the                  // if the voice was killed in this subfragment, enter fade out stage
495                  // filter EG is finished, switch EG1 to fade out stage                  if (itKillEvent && killPos <= iSubFragmentEnd) {
496                  /*if ((itKillEvent && killPos <= iSubFragmentEnd) ||                      pSignalUnitRack->EnterFadeOutStage();
497                      (SYNTHESIS_MODE_GET_FILTER(SynthesisMode) &&                      itKillEvent = Pool<Event>::Iterator();
498                      pEG2->getSegmentType() == EG::segment_end)) {                  }
499                    
500                    // if the filter EG is finished, switch EG1 to fade out stage
501                    /*if (SYNTHESIS_MODE_GET_FILTER(SynthesisMode) &&
502                        pEG2->getSegmentType() == EG::segment_end) {
503                      pEG1->enterFadeOutStage();                      pEG1->enterFadeOutStage();
504                      itKillEvent = Pool<Event>::Iterator();                      itKillEvent = Pool<Event>::Iterator();
505                  }*/                  }*/
# Line 493  namespace LinuxSampler { Line 546  namespace LinuxSampler {
546                  fFinalVolume * VolumeRight * PanRightSmoother.render();                  fFinalVolume * VolumeRight * PanRightSmoother.render();
547  #endif  #endif
548              // render audio for one subfragment              // render audio for one subfragment
549              RunSynthesisFunction(SynthesisMode, &finalSynthesisParameters, &loop);              if (!delay) RunSynthesisFunction(SynthesisMode, &finalSynthesisParameters, &loop);
550    
551              if (pSignalUnitRack == NULL) {              if (pSignalUnitRack == NULL) {
552                  // stop the rendering if volume EG is finished                  // stop the rendering if volume EG is finished
# Line 530  namespace LinuxSampler { Line 583  namespace LinuxSampler {
583                      }*/                      }*/
584                  // TODO: ^^^                  // TODO: ^^^
585                                    
586                  pSignalUnitRack->Increment();                  if (!delay) pSignalUnitRack->Increment();
587              }              }
588    
589              Pos = newPos;              Pos = newPos;
590              i = iSubFragmentEnd;              i = iSubFragmentEnd;
591          }          }
592            
593            if (delay) return;
594    
595          if (bVoiceRequiresDedicatedRouting) {          if (bVoiceRequiresDedicatedRouting) {
596                if (bEq) {
597                    pEq->RenderAudio(Samples);
598                    pEq->GetOutChannelLeft()->CopyTo(GetEngine()->pDedicatedVoiceChannelLeft, Samples);
599                    pEq->GetOutChannelRight()->CopyTo(GetEngine()->pDedicatedVoiceChannelRight, Samples);
600                }
601              optional<float> effectSendLevels[2] = {              optional<float> effectSendLevels[2] = {
602                  pMidiKeyInfo->ReverbSend,                  pMidiKeyInfo->ReverbSend,
603                  pMidiKeyInfo->ChorusSend                  pMidiKeyInfo->ChorusSend
604              };              };
605              GetEngine()->RouteDedicatedVoiceChannels(pEngineChannel, effectSendLevels, Samples);              GetEngine()->RouteDedicatedVoiceChannels(pEngineChannel, effectSendLevels, Samples);
606            } else if (bEq) {
607                pEq->RenderAudio(Samples);
608                pEq->GetOutChannelLeft()->MixTo(pChannel->pChannelLeft, Samples);
609                pEq->GetOutChannelRight()->MixTo(pChannel->pChannelRight, Samples);
610          }          }
611      }      }
612    
# Line 576  namespace LinuxSampler { Line 640  namespace LinuxSampler {
640                  if (itEvent->Param.CC.Controller == 7) { // volume                  if (itEvent->Param.CC.Controller == 7) { // volume
641                      VolumeSmoother.update(AbstractEngine::VolumeCurve[itEvent->Param.CC.Value]);                      VolumeSmoother.update(AbstractEngine::VolumeCurve[itEvent->Param.CC.Value]);
642                  } else if (itEvent->Param.CC.Controller == 10) { // panpot                  } else if (itEvent->Param.CC.Controller == 10) { // panpot
643                      MIDIPan = itEvent->Param.CC.Value;                      MIDIPan = CalculatePan(itEvent->Param.CC.Value);
644                  }                  }
645              } else if (itEvent->Type == Event::type_pitchbend) { // if pitch bend event              } else if (itEvent->Type == Event::type_pitchbend) { // if pitch bend event
646                  processPitchEvent(itEvent);                  processPitchEvent(itEvent);
# Line 691  namespace LinuxSampler { Line 755  namespace LinuxSampler {
755    
756          return pitch;          return pitch;
757      }      }
758        
759        void AbstractVoice::onScaleTuningChanged() {
760            PitchInfo pitch = this->Pitch;
761            double pitchbasecents = InstrInfo.FineTune + RgnInfo.FineTune + GetEngine()->ScaleTuning[MIDIKey % 12];
762            
763            // GSt behaviour: maximum transpose up is 40 semitones. If
764            // MIDI key is more than 40 semitones above unity note,
765            // the transpose is not done.
766            if (!SmplInfo.Unpitched && (MIDIKey - (int) RgnInfo.UnityNote) < 40) pitchbasecents += (MIDIKey - (int) RgnInfo.UnityNote) * 100;
767            
768            pitch.PitchBase = RTMath::CentsToFreqRatioUnlimited(pitchbasecents) * (double(SmplInfo.SampleRate) / double(GetEngine()->SampleRate));
769            this->Pitch = pitch;
770        }
771    
772      double AbstractVoice::CalculateVolume(double velocityAttenuation) {      double AbstractVoice::CalculateVolume(double velocityAttenuation) {
773          // For 16 bit samples, we downscale by 32768 to convert from          // For 16 bit samples, we downscale by 32768 to convert from
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