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

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revision 770 by schoenebeck, Sun Sep 11 15:56:29 2005 UTC revision 799 by persson, Sat Nov 5 10:59:37 2005 UTC
# Line 140  namespace LinuxSampler { namespace gig { Line 140  namespace LinuxSampler { namespace gig {
140          PanRight = 1.0f - float(RTMath::Min(pDimRgn->Pan, 0)) / -64.0f;          PanRight = 1.0f - float(RTMath::Min(pDimRgn->Pan, 0)) / -64.0f;
141    
142          finalSynthesisParameters.dPos = pDimRgn->SampleStartOffset; // offset where we should start playback of sample (0 - 2000 sample points)          finalSynthesisParameters.dPos = pDimRgn->SampleStartOffset; // offset where we should start playback of sample (0 - 2000 sample points)
143            Pos = pDimRgn->SampleStartOffset;
144    
145          // 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
146          long cachedsamples = pSample->GetCache().Size / pSample->FrameSize;          long cachedsamples = pSample->GetCache().Size / pSample->FrameSize;
# Line 149  namespace LinuxSampler { namespace gig { Line 150  namespace LinuxSampler { namespace gig {
150              MaxRAMPos = cachedsamples - (pEngine->MaxSamplesPerCycle << CONFIG_MAX_PITCH) / pSample->Channels; //TODO: this calculation is too pessimistic and may better be moved to Render() method, so it calculates MaxRAMPos dependent to the current demand of sample points to be rendered (e.g. in case of JACK)              MaxRAMPos = cachedsamples - (pEngine->MaxSamplesPerCycle << CONFIG_MAX_PITCH) / pSample->Channels; //TODO: this calculation is too pessimistic and may better be moved to Render() method, so it calculates MaxRAMPos dependent to the current demand of sample points to be rendered (e.g. in case of JACK)
151    
152              // check if there's a loop defined which completely fits into the cached (RAM) part of the sample              // check if there's a loop defined which completely fits into the cached (RAM) part of the sample
153              if (pSample->Loops && pSample->LoopEnd <= MaxRAMPos) {              RAMLoop = (pSample->Loops && pSample->LoopEnd <= MaxRAMPos);
                 RAMLoop            = true;  
                 loop.uiTotalCycles = pSample->LoopPlayCount;  
                 loop.uiCyclesLeft  = pSample->LoopPlayCount;  
                 loop.uiStart       = pSample->LoopStart;  
                 loop.uiEnd         = pSample->LoopEnd;  
                 loop.uiSize        = pSample->LoopSize;  
             }  
             else RAMLoop = false;  
154    
155              if (pDiskThread->OrderNewStream(&DiskStreamRef, pSample, MaxRAMPos, !RAMLoop) < 0) {              if (pDiskThread->OrderNewStream(&DiskStreamRef, pSample, MaxRAMPos, !RAMLoop) < 0) {
156                  dmsg(1,("Disk stream order failed!\n"));                  dmsg(1,("Disk stream order failed!\n"));
# Line 168  namespace LinuxSampler { namespace gig { Line 161  namespace LinuxSampler { namespace gig {
161          }          }
162          else { // RAM only voice          else { // RAM only voice
163              MaxRAMPos = cachedsamples;              MaxRAMPos = cachedsamples;
164              if (pSample->Loops) {              RAMLoop = (pSample->Loops != 0);
                 RAMLoop           = true;  
                 loop.uiCyclesLeft = pSample->LoopPlayCount;  
             }  
             else RAMLoop = false;  
165              dmsg(4,("RAM only voice launched (Looping: %s)\n", (RAMLoop) ? "yes" : "no"));              dmsg(4,("RAM only voice launched (Looping: %s)\n", (RAMLoop) ? "yes" : "no"));
166          }          }
167            if (RAMLoop) {
168                loop.uiTotalCycles = pSample->LoopPlayCount;
169                loop.uiCyclesLeft  = pSample->LoopPlayCount;
170                loop.uiStart       = pSample->LoopStart;
171                loop.uiEnd         = pSample->LoopEnd;
172                loop.uiSize        = pSample->LoopSize;
173            }
174    
175          // calculate initial pitch value          // calculate initial pitch value
176          {          {
# Line 219  namespace LinuxSampler { namespace gig { Line 214  namespace LinuxSampler { namespace gig {
214              EG1.trigger(pDimRgn->EG1PreAttack,              EG1.trigger(pDimRgn->EG1PreAttack,
215                          pDimRgn->EG1Attack * eg1attack,                          pDimRgn->EG1Attack * eg1attack,
216                          pDimRgn->EG1Hold,                          pDimRgn->EG1Hold,
                         pSample->LoopStart,  
217                          pDimRgn->EG1Decay1 * eg1decay * velrelease,                          pDimRgn->EG1Decay1 * eg1decay * velrelease,
218                          pDimRgn->EG1Decay2 * eg1decay * velrelease,                          pDimRgn->EG1Decay2 * eg1decay * velrelease,
219                          pDimRgn->EG1InfiniteSustain,                          pDimRgn->EG1InfiniteSustain,
# Line 258  namespace LinuxSampler { namespace gig { Line 252  namespace LinuxSampler { namespace gig {
252              EG2.trigger(pDimRgn->EG2PreAttack,              EG2.trigger(pDimRgn->EG2PreAttack,
253                          pDimRgn->EG2Attack * eg2attack,                          pDimRgn->EG2Attack * eg2attack,
254                          false,                          false,
                         pSample->LoopStart,  
255                          pDimRgn->EG2Decay1 * eg2decay * velrelease,                          pDimRgn->EG2Decay1 * eg2decay * velrelease,
256                          pDimRgn->EG2Decay2 * eg2decay * velrelease,                          pDimRgn->EG2Decay2 * eg2decay * velrelease,
257                          pDimRgn->EG2InfiniteSustain,                          pDimRgn->EG2InfiniteSustain,
# Line 495  namespace LinuxSampler { namespace gig { Line 488  namespace LinuxSampler { namespace gig {
488              if (VCFCutoffCtrl.controller) {              if (VCFCutoffCtrl.controller) {
489                  cvalue = pEngineChannel->ControllerTable[VCFCutoffCtrl.controller];                  cvalue = pEngineChannel->ControllerTable[VCFCutoffCtrl.controller];
490                  if (pDimRgn->VCFCutoffControllerInvert) cvalue = 127 - cvalue;                  if (pDimRgn->VCFCutoffControllerInvert) cvalue = 127 - cvalue;
491                    // VCFVelocityScale in this case means Minimum cutoff
492                  if (cvalue < pDimRgn->VCFVelocityScale) cvalue = pDimRgn->VCFVelocityScale;                  if (cvalue < pDimRgn->VCFVelocityScale) cvalue = pDimRgn->VCFVelocityScale;
493              }              }
494              else {              else {
# Line 502  namespace LinuxSampler { namespace gig { Line 496  namespace LinuxSampler { namespace gig {
496              }              }
497              cutoff *= float(cvalue) * 0.00787402f; // (1 / 127)              cutoff *= float(cvalue) * 0.00787402f; // (1 / 127)
498              if (cutoff > 1.0) cutoff = 1.0;              if (cutoff > 1.0) cutoff = 1.0;
499              cutoff = exp(cutoff * FILTER_CUTOFF_COEFF) * CONFIG_FILTER_CUTOFF_MIN;              cutoff = (cutoff < 0.5 ? cutoff * 4826 - 1 : cutoff * 5715 - 449);
500                if (cutoff < 1.0) cutoff = 1.0;
501    
502              // calculate resonance              // calculate resonance
503              float resonance = (float) VCFResonanceCtrl.value * 0.00787f;   // 0.0..1.0              float resonance = (float) (VCFResonanceCtrl.controller ? VCFResonanceCtrl.value : pDimRgn->VCFResonance) * 0.00787f; // 0.0..1.0
             if (pDimRgn->VCFKeyboardTracking) {  
                 resonance += (float) (itNoteOnEvent->Param.Note.Key - pDimRgn->VCFKeyboardTrackingBreakpoint) * 0.00787f;  
             }  
             Constrain(resonance, 0.0, 1.0); // correct resonance if outside allowed value range (0.0..1.0)  
504    
505              VCFCutoffCtrl.fvalue    = cutoff - CONFIG_FILTER_CUTOFF_MIN;              VCFCutoffCtrl.fvalue    = cutoff - 1.0;
506              VCFResonanceCtrl.fvalue = resonance;              VCFResonanceCtrl.fvalue = resonance;
507          }          }
508          else {          else {
# Line 611  namespace LinuxSampler { namespace gig { Line 602  namespace LinuxSampler { namespace gig {
602                  break;                  break;
603          }          }
604    
         // Reset synthesis event lists  
         pEngineChannel->pEvents->clear();  
   
605          // Reset delay          // Reset delay
606          Delay = 0;          Delay = 0;
607    
# Line 649  namespace LinuxSampler { namespace gig { Line 637  namespace LinuxSampler { namespace gig {
637      void Voice::processTransitionEvents(RTList<Event>::Iterator& itEvent, uint End) {      void Voice::processTransitionEvents(RTList<Event>::Iterator& itEvent, uint End) {
638          for (; itEvent && itEvent->FragmentPos() <= End; ++itEvent) {          for (; itEvent && itEvent->FragmentPos() <= End; ++itEvent) {
639              if (itEvent->Type == Event::type_release) {              if (itEvent->Type == Event::type_release) {
640                  EG1.update(EGADSR::event_release, finalSynthesisParameters.dPos, finalSynthesisParameters.fFinalPitch, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);                  EG1.update(EGADSR::event_release, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
641                  EG2.update(EGADSR::event_release, finalSynthesisParameters.dPos, finalSynthesisParameters.fFinalPitch, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);                  EG2.update(EGADSR::event_release, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
642              } else if (itEvent->Type == Event::type_cancel_release) {              } else if (itEvent->Type == Event::type_cancel_release) {
643                  EG1.update(EGADSR::event_cancel_release, finalSynthesisParameters.dPos, finalSynthesisParameters.fFinalPitch, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);                  EG1.update(EGADSR::event_cancel_release, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
644                  EG2.update(EGADSR::event_cancel_release, finalSynthesisParameters.dPos, finalSynthesisParameters.fFinalPitch, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);                  EG2.update(EGADSR::event_cancel_release, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
645              }              }
646          }          }
647      }      }
# Line 718  namespace LinuxSampler { namespace gig { Line 706  namespace LinuxSampler { namespace gig {
706          if (ccvalue < pDimRgn->VCFVelocityScale) ccvalue = pDimRgn->VCFVelocityScale;          if (ccvalue < pDimRgn->VCFVelocityScale) ccvalue = pDimRgn->VCFVelocityScale;
707          float cutoff = CutoffBase * float(ccvalue) * 0.00787402f; // (1 / 127)          float cutoff = CutoffBase * float(ccvalue) * 0.00787402f; // (1 / 127)
708          if (cutoff > 1.0) cutoff = 1.0;          if (cutoff > 1.0) cutoff = 1.0;
709          cutoff = exp(cutoff * FILTER_CUTOFF_COEFF) * CONFIG_FILTER_CUTOFF_MIN - CONFIG_FILTER_CUTOFF_MIN;          cutoff = (cutoff < 0.5 ? cutoff * 4826 - 1 : cutoff * 5715 - 449);
710          VCFCutoffCtrl.fvalue = cutoff; // needed for initialization of fFinalCutoff next time          if (cutoff < 1.0) cutoff = 1.0;
711    
712            VCFCutoffCtrl.fvalue = cutoff - 1.0; // needed for initialization of fFinalCutoff next time
713          fFinalCutoff = cutoff;          fFinalCutoff = cutoff;
714      }      }
715    
# Line 754  namespace LinuxSampler { namespace gig { Line 744  namespace LinuxSampler { namespace gig {
744              while (itNoteEvent && itNoteEvent->FragmentPos() <= Skip) ++itNoteEvent;              while (itNoteEvent && itNoteEvent->FragmentPos() <= Skip) ++itNoteEvent;
745          }          }
746    
747            uint killPos;
748            if (itKillEvent) killPos = RTMath::Min(itKillEvent->FragmentPos(), pEngine->MaxFadeOutPos);
749    
750          uint i = Skip;          uint i = Skip;
751          while (i < Samples) {          while (i < Samples) {
752              int iSubFragmentEnd = RTMath::Min(i + CONFIG_DEFAULT_SUBFRAGMENT_SIZE, Samples);              int iSubFragmentEnd = RTMath::Min(i + CONFIG_DEFAULT_SUBFRAGMENT_SIZE, Samples);
# Line 774  namespace LinuxSampler { namespace gig { Line 767  namespace LinuxSampler { namespace gig {
767              // process transition events (note on, note off & sustain pedal)              // process transition events (note on, note off & sustain pedal)
768              processTransitionEvents(itNoteEvent, iSubFragmentEnd);              processTransitionEvents(itNoteEvent, iSubFragmentEnd);
769    
770                // if the voice was killed in this subfragment switch EG1 to fade out stage
771                if (itKillEvent && killPos <= iSubFragmentEnd) {
772                    EG1.enterFadeOutStage();
773                    itKillEvent = Pool<Event>::Iterator();
774                }
775    
776              // process envelope generators              // process envelope generators
777              switch (EG1.getSegmentType()) {              switch (EG1.getSegmentType()) {
778                  case EGADSR::segment_lin:                  case EGADSR::segment_lin:
# Line 806  namespace LinuxSampler { namespace gig { Line 805  namespace LinuxSampler { namespace gig {
805    
806              // if filter enabled then update filter coefficients              // if filter enabled then update filter coefficients
807              if (SYNTHESIS_MODE_GET_FILTER(SynthesisMode)) {              if (SYNTHESIS_MODE_GET_FILTER(SynthesisMode)) {
808                  finalSynthesisParameters.filterLeft.SetParameters(fFinalCutoff, fFinalResonance, pEngine->SampleRate);                  finalSynthesisParameters.filterLeft.SetParameters(fFinalCutoff + 1.0, fFinalResonance, pEngine->SampleRate);
809                  finalSynthesisParameters.filterRight.SetParameters(fFinalCutoff, fFinalResonance, pEngine->SampleRate);                  finalSynthesisParameters.filterRight.SetParameters(fFinalCutoff + 1.0, fFinalResonance, pEngine->SampleRate);
810              }              }
811    
812              // do we need resampling?              // do we need resampling?
# Line 825  namespace LinuxSampler { namespace gig { Line 824  namespace LinuxSampler { namespace gig {
824              // render audio for one subfragment              // render audio for one subfragment
825              RunSynthesisFunction(SynthesisMode, &finalSynthesisParameters, &loop);              RunSynthesisFunction(SynthesisMode, &finalSynthesisParameters, &loop);
826    
827                const double newPos = Pos + (iSubFragmentEnd - i) * finalSynthesisParameters.fFinalPitch;
828    
829              // increment envelopes' positions              // increment envelopes' positions
830              if (EG1.active()) {              if (EG1.active()) {
831    
832                    // if sample has a loop and loop start has been reached in this subfragment, send a special event to EG1 to let it finish the attack hold stage
833                    if (pSample->Loops && Pos <= pSample->LoopStart && pSample->LoopStart < newPos) {
834                        EG1.update(EGADSR::event_hold_end, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
835                    }
836    
837                  EG1.increment(1);                  EG1.increment(1);
838                  if (!EG1.toStageEndLeft()) EG1.update(EGADSR::event_stage_end, finalSynthesisParameters.dPos, finalSynthesisParameters.fFinalPitch, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);                  if (!EG1.toStageEndLeft()) EG1.update(EGADSR::event_stage_end, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
839              }              }
840              if (EG2.active()) {              if (EG2.active()) {
841                  EG2.increment(1);                  EG2.increment(1);
842                  if (!EG2.toStageEndLeft()) EG2.update(EGADSR::event_stage_end, finalSynthesisParameters.dPos, finalSynthesisParameters.fFinalPitch, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);                  if (!EG2.toStageEndLeft()) EG2.update(EGADSR::event_stage_end, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
843              }              }
844              EG3.increment(1);              EG3.increment(1);
845              if (!EG3.toEndLeft()) EG3.update(); // neutralize envelope coefficient if end reached              if (!EG3.toEndLeft()) EG3.update(); // neutralize envelope coefficient if end reached
846    
847                Pos = newPos;
848              i = iSubFragmentEnd;              i = iSubFragmentEnd;
849          }          }
850      }      }
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