/[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 738 by schoenebeck, Tue Aug 16 17:14:25 2005 UTC revision 832 by persson, Sun Feb 5 10:24:05 2006 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, 2006 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 23  Line 23 
23    
24  #include "../../common/Features.h"  #include "../../common/Features.h"
25  #include "Synthesizer.h"  #include "Synthesizer.h"
26    #include "Profiler.h"
27    
28  #include "Voice.h"  #include "Voice.h"
29    
# Line 49  namespace LinuxSampler { namespace gig { Line 50  namespace LinuxSampler { namespace gig {
50          #else          #else
51          SYNTHESIS_MODE_SET_IMPLEMENTATION(SynthesisMode, false);          SYNTHESIS_MODE_SET_IMPLEMENTATION(SynthesisMode, false);
52          #endif          #endif
53          SYNTHESIS_MODE_SET_PROFILING(SynthesisMode, true);          SYNTHESIS_MODE_SET_PROFILING(SynthesisMode, Profiler::isEnabled());
54    
55          FilterLeft.Reset();          finalSynthesisParameters.filterLeft.Reset();
56          FilterRight.Reset();          finalSynthesisParameters.filterRight.Reset();
57      }      }
58    
59      Voice::~Voice() {      Voice::~Voice() {
# Line 103  namespace LinuxSampler { namespace gig { Line 104  namespace LinuxSampler { namespace gig {
104          // calculate volume          // calculate volume
105          const double velocityAttenuation = pDimRgn->GetVelocityAttenuation(itNoteOnEvent->Param.Note.Velocity);          const double velocityAttenuation = pDimRgn->GetVelocityAttenuation(itNoteOnEvent->Param.Note.Velocity);
106    
107          Volume = velocityAttenuation / 32768.0f; // we downscale by 32768 to convert from int16 value range to DSP value range (which is -1.0..1.0)          float volume = velocityAttenuation / 32768.0f; // we downscale by 32768 to convert from int16 value range to DSP value range (which is -1.0..1.0)
108    
109          Volume *= pDimRgn->SampleAttenuation;          volume *= pDimRgn->SampleAttenuation;
110    
111          // the volume of release triggered samples depends on note length          // the volume of release triggered samples depends on note length
112          if (Type == type_release_trigger) {          if (Type == type_release_trigger) {
# Line 113  namespace LinuxSampler { namespace gig { Line 114  namespace LinuxSampler { namespace gig {
114                                       pEngineChannel->pMIDIKeyInfo[MIDIKey].NoteOnTime) / pEngine->SampleRate;                                       pEngineChannel->pMIDIKeyInfo[MIDIKey].NoteOnTime) / pEngine->SampleRate;
115              float attenuation = 1 - 0.01053 * (256 >> pDimRgn->ReleaseTriggerDecay) * noteLength;              float attenuation = 1 - 0.01053 * (256 >> pDimRgn->ReleaseTriggerDecay) * noteLength;
116              if (attenuation <= 0) return -1;              if (attenuation <= 0) return -1;
117              Volume *= attenuation;              volume *= attenuation;
118          }          }
119    
120          // select channel mode (mono or stereo)          // select channel mode (mono or stereo)
121          SYNTHESIS_MODE_SET_CHANNELS(SynthesisMode, pSample->Channels == 2);          SYNTHESIS_MODE_SET_CHANNELS(SynthesisMode, pSample->Channels == 2);
122    
123          // get starting crossfade volume level          // get starting crossfade volume level
124            float crossfadeVolume;
125          switch (pDimRgn->AttenuationController.type) {          switch (pDimRgn->AttenuationController.type) {
126              case ::gig::attenuation_ctrl_t::type_channelaftertouch:              case ::gig::attenuation_ctrl_t::type_channelaftertouch:
127                  CrossfadeVolume = 1.0f; //TODO: aftertouch not supported yet                  crossfadeVolume = 1.0f; //TODO: aftertouch not supported yet
128                  break;                  break;
129              case ::gig::attenuation_ctrl_t::type_velocity:              case ::gig::attenuation_ctrl_t::type_velocity:
130                  CrossfadeVolume = CrossfadeAttenuation(itNoteOnEvent->Param.Note.Velocity);                  crossfadeVolume = Engine::CrossfadeCurve[CrossfadeAttenuation(itNoteOnEvent->Param.Note.Velocity)];
131                  break;                  break;
132              case ::gig::attenuation_ctrl_t::type_controlchange: //FIXME: currently not sample accurate              case ::gig::attenuation_ctrl_t::type_controlchange: //FIXME: currently not sample accurate
133                  CrossfadeVolume = CrossfadeAttenuation(pEngineChannel->ControllerTable[pDimRgn->AttenuationController.controller_number]);                  crossfadeVolume = Engine::CrossfadeCurve[CrossfadeAttenuation(pEngineChannel->ControllerTable[pDimRgn->AttenuationController.controller_number])];
134                  break;                  break;
135              case ::gig::attenuation_ctrl_t::type_none: // no crossfade defined              case ::gig::attenuation_ctrl_t::type_none: // no crossfade defined
136              default:              default:
137                  CrossfadeVolume = 1.0f;                  crossfadeVolume = 1.0f;
138          }          }
139    
140          PanLeft  = 1.0f - float(RTMath::Max(pDimRgn->Pan, 0)) /  63.0f;          VolumeLeft  = volume * Engine::PanCurve[64 - pDimRgn->Pan];
141          PanRight = 1.0f - float(RTMath::Min(pDimRgn->Pan, 0)) / -64.0f;          VolumeRight = volume * Engine::PanCurve[64 + pDimRgn->Pan];
142    
143          Pos = pDimRgn->SampleStartOffset; // offset where we should start playback of sample (0 - 2000 sample points)          float subfragmentRate = pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE;
144            CrossfadeSmoother.trigger(crossfadeVolume, subfragmentRate);
145            VolumeSmoother.trigger(pEngineChannel->GlobalVolume, subfragmentRate);
146            PanLeftSmoother.trigger(pEngineChannel->GlobalPanLeft, subfragmentRate);
147            PanRightSmoother.trigger(pEngineChannel->GlobalPanRight, subfragmentRate);
148    
149            finalSynthesisParameters.dPos = pDimRgn->SampleStartOffset; // offset where we should start playback of sample (0 - 2000 sample points)
150            Pos = pDimRgn->SampleStartOffset;
151    
152          // 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
153          long cachedsamples = pSample->GetCache().Size / pSample->FrameSize;          long cachedsamples = pSample->GetCache().Size / pSample->FrameSize;
# Line 148  namespace LinuxSampler { namespace gig { Line 157  namespace LinuxSampler { namespace gig {
157              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)
158    
159              // 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
160              if (pSample->Loops && pSample->LoopEnd <= MaxRAMPos) {              RAMLoop = (pSample->Loops && pSample->LoopEnd <= MaxRAMPos);
                 RAMLoop        = true;  
                 LoopCyclesLeft = pSample->LoopPlayCount;  
             }  
             else RAMLoop = false;  
161    
162              if (pDiskThread->OrderNewStream(&DiskStreamRef, pSample, MaxRAMPos, !RAMLoop) < 0) {              if (pDiskThread->OrderNewStream(&DiskStreamRef, pSample, MaxRAMPos, !RAMLoop) < 0) {
163                  dmsg(1,("Disk stream order failed!\n"));                  dmsg(1,("Disk stream order failed!\n"));
# Line 163  namespace LinuxSampler { namespace gig { Line 168  namespace LinuxSampler { namespace gig {
168          }          }
169          else { // RAM only voice          else { // RAM only voice
170              MaxRAMPos = cachedsamples;              MaxRAMPos = cachedsamples;
171              if (pSample->Loops) {              RAMLoop = (pSample->Loops != 0);
                 RAMLoop        = true;  
                 LoopCyclesLeft = pSample->LoopPlayCount;  
             }  
             else RAMLoop = false;  
172              dmsg(4,("RAM only voice launched (Looping: %s)\n", (RAMLoop) ? "yes" : "no"));              dmsg(4,("RAM only voice launched (Looping: %s)\n", (RAMLoop) ? "yes" : "no"));
173          }          }
174            if (RAMLoop) {
175                loop.uiTotalCycles = pSample->LoopPlayCount;
176                loop.uiCyclesLeft  = pSample->LoopPlayCount;
177                loop.uiStart       = pSample->LoopStart;
178                loop.uiEnd         = pSample->LoopEnd;
179                loop.uiSize        = pSample->LoopSize;
180            }
181    
182          // calculate initial pitch value          // calculate initial pitch value
183          {          {
# Line 214  namespace LinuxSampler { namespace gig { Line 221  namespace LinuxSampler { namespace gig {
221              EG1.trigger(pDimRgn->EG1PreAttack,              EG1.trigger(pDimRgn->EG1PreAttack,
222                          pDimRgn->EG1Attack * eg1attack,                          pDimRgn->EG1Attack * eg1attack,
223                          pDimRgn->EG1Hold,                          pDimRgn->EG1Hold,
                         pSample->LoopStart,  
224                          pDimRgn->EG1Decay1 * eg1decay * velrelease,                          pDimRgn->EG1Decay1 * eg1decay * velrelease,
225                          pDimRgn->EG1Decay2 * eg1decay * velrelease,                          pDimRgn->EG1Decay2 * eg1decay * velrelease,
226                          pDimRgn->EG1InfiniteSustain,                          pDimRgn->EG1InfiniteSustain,
# Line 224  namespace LinuxSampler { namespace gig { Line 230  namespace LinuxSampler { namespace gig {
230                          pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);                          pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
231          }          }
232    
233    #ifdef CONFIG_INTERPOLATE_VOLUME
234            // setup initial volume in synthesis parameters
235    #ifdef CONFIG_PROCESS_MUTED_CHANNELS
236            if (pEngineChannel->GetMute()) {
237                finalSynthesisParameters.fFinalVolumeLeft  = 0;
238                finalSynthesisParameters.fFinalVolumeRight = 0;
239            }
240            else
241    #else
242            {
243                float finalVolume = pEngineChannel->GlobalVolume * crossfadeVolume * EG1.getLevel();
244    
245                finalSynthesisParameters.fFinalVolumeLeft  = finalVolume * VolumeLeft  * pEngineChannel->GlobalPanLeft;
246                finalSynthesisParameters.fFinalVolumeRight = finalVolume * VolumeRight * pEngineChannel->GlobalPanRight;
247            }
248    #endif
249    #endif
250    
251          // setup EG 2 (VCF Cutoff EG)          // setup EG 2 (VCF Cutoff EG)
252          {          {
# Line 253  namespace LinuxSampler { namespace gig { Line 276  namespace LinuxSampler { namespace gig {
276              EG2.trigger(pDimRgn->EG2PreAttack,              EG2.trigger(pDimRgn->EG2PreAttack,
277                          pDimRgn->EG2Attack * eg2attack,                          pDimRgn->EG2Attack * eg2attack,
278                          false,                          false,
                         pSample->LoopStart,  
279                          pDimRgn->EG2Decay1 * eg2decay * velrelease,                          pDimRgn->EG2Decay1 * eg2decay * velrelease,
280                          pDimRgn->EG2Decay2 * eg2decay * velrelease,                          pDimRgn->EG2Decay2 * eg2decay * velrelease,
281                          pDimRgn->EG2InfiniteSustain,                          pDimRgn->EG2InfiniteSustain,
# Line 266  namespace LinuxSampler { namespace gig { Line 288  namespace LinuxSampler { namespace gig {
288    
289          // setup EG 3 (VCO EG)          // setup EG 3 (VCO EG)
290          {          {
291            double eg3depth = RTMath::CentsToFreqRatio(pDimRgn->EG3Depth);              // if portamento mode is on, we dedicate EG3 purely for portamento, otherwise if portamento is off we do as told by the patch
292            EG3.trigger(eg3depth, pDimRgn->EG3Attack, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);              bool  bPortamento = pEngineChannel->PortamentoMode && pEngineChannel->PortamentoPos >= 0.0f;
293                float eg3depth = (bPortamento)
294                                     ? RTMath::CentsToFreqRatio((pEngineChannel->PortamentoPos - (float) MIDIKey) * 100)
295                                     : RTMath::CentsToFreqRatio(pDimRgn->EG3Depth);
296                float eg3time = (bPortamento)
297                                    ? pEngineChannel->PortamentoTime
298                                    : pDimRgn->EG3Attack;
299                EG3.trigger(eg3depth, eg3time, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
300                dmsg(5,("PortamentoPos=%f, depth=%f, time=%f\n", pEngineChannel->PortamentoPos, eg3depth, eg3time));
301          }          }
302    
303    
# Line 469  namespace LinuxSampler { namespace gig { Line 499  namespace LinuxSampler { namespace gig {
499              #endif // CONFIG_OVERRIDE_RESONANCE_CTRL              #endif // CONFIG_OVERRIDE_RESONANCE_CTRL
500    
501              #ifndef CONFIG_OVERRIDE_FILTER_TYPE              #ifndef CONFIG_OVERRIDE_FILTER_TYPE
502              FilterLeft.SetType(pDimRgn->VCFType);              finalSynthesisParameters.filterLeft.SetType(pDimRgn->VCFType);
503              FilterRight.SetType(pDimRgn->VCFType);              finalSynthesisParameters.filterRight.SetType(pDimRgn->VCFType);
504              #else // override filter type              #else // override filter type
505              FilterLeft.SetType(CONFIG_OVERRIDE_FILTER_TYPE);              FilterLeft.SetType(CONFIG_OVERRIDE_FILTER_TYPE);
506              FilterRight.SetType(CONFIG_OVERRIDE_FILTER_TYPE);              FilterRight.SetType(CONFIG_OVERRIDE_FILTER_TYPE);
# Line 490  namespace LinuxSampler { namespace gig { Line 520  namespace LinuxSampler { namespace gig {
520              if (VCFCutoffCtrl.controller) {              if (VCFCutoffCtrl.controller) {
521                  cvalue = pEngineChannel->ControllerTable[VCFCutoffCtrl.controller];                  cvalue = pEngineChannel->ControllerTable[VCFCutoffCtrl.controller];
522                  if (pDimRgn->VCFCutoffControllerInvert) cvalue = 127 - cvalue;                  if (pDimRgn->VCFCutoffControllerInvert) cvalue = 127 - cvalue;
523                    // VCFVelocityScale in this case means Minimum cutoff
524                  if (cvalue < pDimRgn->VCFVelocityScale) cvalue = pDimRgn->VCFVelocityScale;                  if (cvalue < pDimRgn->VCFVelocityScale) cvalue = pDimRgn->VCFVelocityScale;
525              }              }
526              else {              else {
# Line 497  namespace LinuxSampler { namespace gig { Line 528  namespace LinuxSampler { namespace gig {
528              }              }
529              cutoff *= float(cvalue) * 0.00787402f; // (1 / 127)              cutoff *= float(cvalue) * 0.00787402f; // (1 / 127)
530              if (cutoff > 1.0) cutoff = 1.0;              if (cutoff > 1.0) cutoff = 1.0;
531              cutoff = exp(cutoff * FILTER_CUTOFF_COEFF) * CONFIG_FILTER_CUTOFF_MIN;              cutoff = (cutoff < 0.5 ? cutoff * 4826 - 1 : cutoff * 5715 - 449);
532                if (cutoff < 1.0) cutoff = 1.0;
533    
534              // calculate resonance              // calculate resonance
535              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)  
536    
537              VCFCutoffCtrl.fvalue    = cutoff - CONFIG_FILTER_CUTOFF_MIN;              VCFCutoffCtrl.fvalue    = cutoff - 1.0;
538              VCFResonanceCtrl.fvalue = resonance;              VCFResonanceCtrl.fvalue = resonance;
539          }          }
540          else {          else {
# Line 547  namespace LinuxSampler { namespace gig { Line 575  namespace LinuxSampler { namespace gig {
575    
576                      if (DiskVoice) {                      if (DiskVoice) {
577                          // check if we reached the allowed limit of the sample RAM cache                          // check if we reached the allowed limit of the sample RAM cache
578                          if (Pos > MaxRAMPos) {                          if (finalSynthesisParameters.dPos > MaxRAMPos) {
579                              dmsg(5,("Voice: switching to disk playback (Pos=%f)\n", Pos));                              dmsg(5,("Voice: switching to disk playback (Pos=%f)\n", finalSynthesisParameters.dPos));
580                              this->PlaybackState = playback_state_disk;                              this->PlaybackState = playback_state_disk;
581                          }                          }
582                      }                      } else if (finalSynthesisParameters.dPos >= pSample->GetCache().Size / pSample->FrameSize) {
                     else if (Pos >= pSample->GetCache().Size / pSample->FrameSize) {  
583                          this->PlaybackState = playback_state_end;                          this->PlaybackState = playback_state_end;
584                      }                      }
585                  }                  }
# Line 567  namespace LinuxSampler { namespace gig { Line 594  namespace LinuxSampler { namespace gig {
594                              KillImmediately();                              KillImmediately();
595                              return;                              return;
596                          }                          }
597                          DiskStreamRef.pStream->IncrementReadPos(pSample->Channels * (int(Pos) - MaxRAMPos));                          DiskStreamRef.pStream->IncrementReadPos(pSample->Channels * (int(finalSynthesisParameters.dPos) - MaxRAMPos));
598                          Pos -= int(Pos);                          finalSynthesisParameters.dPos -= int(finalSynthesisParameters.dPos);
599                          RealSampleWordsLeftToRead = -1; // -1 means no silence has been added yet                          RealSampleWordsLeftToRead = -1; // -1 means no silence has been added yet
600                      }                      }
601    
# Line 589  namespace LinuxSampler { namespace gig { Line 616  namespace LinuxSampler { namespace gig {
616                      // render current audio fragment                      // render current audio fragment
617                      Synthesize(Samples, ptr, Delay);                      Synthesize(Samples, ptr, Delay);
618    
619                      const int iPos = (int) Pos;                      const int iPos = (int) finalSynthesisParameters.dPos;
620                      const int readSampleWords = iPos * pSample->Channels; // amount of sample words actually been read                      const int readSampleWords = iPos * pSample->Channels; // amount of sample words actually been read
621                      DiskStreamRef.pStream->IncrementReadPos(readSampleWords);                      DiskStreamRef.pStream->IncrementReadPos(readSampleWords);
622                      Pos -= iPos; // just keep fractional part of Pos                      finalSynthesisParameters.dPos -= iPos; // just keep fractional part of playback position
623    
624                      // change state of voice to 'end' if we really reached the end of the sample data                      // change state of voice to 'end' if we really reached the end of the sample data
625                      if (RealSampleWordsLeftToRead >= 0) {                      if (RealSampleWordsLeftToRead >= 0) {
# Line 607  namespace LinuxSampler { namespace gig { Line 634  namespace LinuxSampler { namespace gig {
634                  break;                  break;
635          }          }
636    
         // Reset synthesis event lists  
         pEngineChannel->pEvents->clear();  
   
637          // Reset delay          // Reset delay
638          Delay = 0;          Delay = 0;
639    
# Line 624  namespace LinuxSampler { namespace gig { Line 648  namespace LinuxSampler { namespace gig {
648       *  suspended / not running.       *  suspended / not running.
649       */       */
650      void Voice::Reset() {      void Voice::Reset() {
651          FilterLeft.Reset();          finalSynthesisParameters.filterLeft.Reset();
652          FilterRight.Reset();          finalSynthesisParameters.filterRight.Reset();
653          DiskStreamRef.pStream = NULL;          DiskStreamRef.pStream = NULL;
654          DiskStreamRef.hStream = 0;          DiskStreamRef.hStream = 0;
655          DiskStreamRef.State   = Stream::state_unused;          DiskStreamRef.State   = Stream::state_unused;
# Line 640  namespace LinuxSampler { namespace gig { Line 664  namespace LinuxSampler { namespace gig {
664       * for the given time.       * for the given time.
665       *       *
666       * @param itEvent - iterator pointing to the next event to be processed       * @param itEvent - iterator pointing to the next event to be processed
667       * @param End     - youngest time stamp where processing should be stopped       * @param End     - youngest time stamp where processing should be stopped
668       */       */
669      void Voice::processTransitionEvents(RTList<Event>::Iterator& itEvent, uint End) {      void Voice::processTransitionEvents(RTList<Event>::Iterator& itEvent, uint End) {
670          for (; itEvent && itEvent->FragmentPos() <= End; ++itEvent) {          for (; itEvent && itEvent->FragmentPos() <= End; ++itEvent) {
671              if (itEvent->Type == Event::type_release) {              if (itEvent->Type == Event::type_release) {
672                  EG1.update(EGADSR::event_release, this->Pos, fFinalPitch, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);                  EG1.update(EGADSR::event_release, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
673                  EG2.update(EGADSR::event_release, this->Pos, fFinalPitch, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);                  EG2.update(EGADSR::event_release, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
674              } else if (itEvent->Type == Event::type_cancel_release) {              } else if (itEvent->Type == Event::type_cancel_release) {
675                  EG1.update(EGADSR::event_cancel_release, this->Pos, fFinalPitch, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);                  EG1.update(EGADSR::event_cancel_release, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
676                  EG2.update(EGADSR::event_cancel_release, this->Pos, fFinalPitch, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);                  EG2.update(EGADSR::event_cancel_release, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
677              }              }
678          }          }
679      }      }
# Line 659  namespace LinuxSampler { namespace gig { Line 683  namespace LinuxSampler { namespace gig {
683       * the given time.       * the given time.
684       *       *
685       * @param itEvent - iterator pointing to the next event to be processed       * @param itEvent - iterator pointing to the next event to be processed
686       * @param End     - youngest time stamp where processing should be stopped       * @param End     - youngest time stamp where processing should be stopped
687       */       */
688      void Voice::processCCEvents(RTList<Event>::Iterator& itEvent, uint End) {      void Voice::processCCEvents(RTList<Event>::Iterator& itEvent, uint End) {
689          for (; itEvent && itEvent->FragmentPos() <= End; ++itEvent) {          for (; itEvent && itEvent->FragmentPos() <= End; ++itEvent) {
# Line 682  namespace LinuxSampler { namespace gig { Line 706  namespace LinuxSampler { namespace gig {
706                  }                  }
707                  if (pDimRgn->AttenuationController.type == ::gig::attenuation_ctrl_t::type_controlchange &&                  if (pDimRgn->AttenuationController.type == ::gig::attenuation_ctrl_t::type_controlchange &&
708                      itEvent->Param.CC.Controller == pDimRgn->AttenuationController.controller_number) {                      itEvent->Param.CC.Controller == pDimRgn->AttenuationController.controller_number) {
709                      processCrossFadeEvent(itEvent);                      CrossfadeSmoother.update(Engine::CrossfadeCurve[CrossfadeAttenuation(itEvent->Param.CC.Value)]);
710                    }
711                    if (itEvent->Param.CC.Controller == 7) { // volume
712                        VolumeSmoother.update(Engine::VolumeCurve[itEvent->Param.CC.Value] * CONFIG_GLOBAL_ATTENUATION);
713                    } else if (itEvent->Param.CC.Controller == 10) { // panpot
714                        PanLeftSmoother.update(Engine::PanCurve[128 - itEvent->Param.CC.Value]);
715                        PanRightSmoother.update(Engine::PanCurve[itEvent->Param.CC.Value]);
716                  }                  }
717              } else if (itEvent->Type == Event::type_pitchbend) { // if pitch bend event              } else if (itEvent->Type == Event::type_pitchbend) { // if pitch bend event
718                  processPitchEvent(itEvent);                  processPitchEvent(itEvent);
# Line 692  namespace LinuxSampler { namespace gig { Line 722  namespace LinuxSampler { namespace gig {
722    
723      void Voice::processPitchEvent(RTList<Event>::Iterator& itEvent) {      void Voice::processPitchEvent(RTList<Event>::Iterator& itEvent) {
724          const float pitch = RTMath::CentsToFreqRatio(((double) itEvent->Param.Pitch.Pitch / 8192.0) * 200.0); // +-two semitones = +-200 cents          const float pitch = RTMath::CentsToFreqRatio(((double) itEvent->Param.Pitch.Pitch / 8192.0) * 200.0); // +-two semitones = +-200 cents
725          fFinalPitch *= pitch;          finalSynthesisParameters.fFinalPitch *= pitch;
726      }          PitchBend = pitch;
   
     void Voice::processCrossFadeEvent(RTList<Event>::Iterator& itEvent) {  
         CrossfadeVolume = CrossfadeAttenuation(itEvent->Param.CC.Value);  
         #if CONFIG_PROCESS_MUTED_CHANNELS  
         const float effectiveVolume = CrossfadeVolume * Volume * (pEngineChannel->GetMute() ? 0 : pEngineChannel->GlobalVolume);  
         #else  
         const float effectiveVolume = CrossfadeVolume * Volume * pEngineChannel->GlobalVolume;  
         #endif  
         fFinalVolume = effectiveVolume;  
727      }      }
728    
729      void Voice::processCutoffEvent(RTList<Event>::Iterator& itEvent) {      void Voice::processCutoffEvent(RTList<Event>::Iterator& itEvent) {
# Line 713  namespace LinuxSampler { namespace gig { Line 734  namespace LinuxSampler { namespace gig {
734          if (ccvalue < pDimRgn->VCFVelocityScale) ccvalue = pDimRgn->VCFVelocityScale;          if (ccvalue < pDimRgn->VCFVelocityScale) ccvalue = pDimRgn->VCFVelocityScale;
735          float cutoff = CutoffBase * float(ccvalue) * 0.00787402f; // (1 / 127)          float cutoff = CutoffBase * float(ccvalue) * 0.00787402f; // (1 / 127)
736          if (cutoff > 1.0) cutoff = 1.0;          if (cutoff > 1.0) cutoff = 1.0;
737          cutoff = exp(cutoff * FILTER_CUTOFF_COEFF) * CONFIG_FILTER_CUTOFF_MIN - CONFIG_FILTER_CUTOFF_MIN;          cutoff = (cutoff < 0.5 ? cutoff * 4826 - 1 : cutoff * 5715 - 449);
738          VCFCutoffCtrl.fvalue = cutoff; // needed for initialization of fFinalCutoff next time          if (cutoff < 1.0) cutoff = 1.0;
739    
740            VCFCutoffCtrl.fvalue = cutoff - 1.0; // needed for initialization of fFinalCutoff next time
741          fFinalCutoff = cutoff;          fFinalCutoff = cutoff;
742      }      }
743    
# Line 737  namespace LinuxSampler { namespace gig { Line 760  namespace LinuxSampler { namespace gig {
760       *  @param Skip    - number of sample points to skip in output buffer       *  @param Skip    - number of sample points to skip in output buffer
761       */       */
762      void Voice::Synthesize(uint Samples, sample_t* pSrc, uint Skip) {      void Voice::Synthesize(uint Samples, sample_t* pSrc, uint Skip) {
763            finalSynthesisParameters.pOutLeft  = &pEngineChannel->pOutputLeft[Skip];
764            finalSynthesisParameters.pOutRight = &pEngineChannel->pOutputRight[Skip];
765            finalSynthesisParameters.pSrc      = pSrc;
766    
767          RTList<Event>::Iterator itCCEvent = pEngineChannel->pEvents->first();          RTList<Event>::Iterator itCCEvent = pEngineChannel->pEvents->first();
768          RTList<Event>::Iterator itNoteEvent = pEngineChannel->pMIDIKeyInfo[MIDIKey].pEvents->first();          RTList<Event>::Iterator itNoteEvent = pEngineChannel->pMIDIKeyInfo[MIDIKey].pEvents->first();
769                    
770          if (Skip) { // skip events that happened before this voice was triggered          if (Skip) { // skip events that happened before this voice was triggered
771              while (itCCEvent && itCCEvent->FragmentPos() <= Skip) ++itCCEvent;              while (itCCEvent && itCCEvent->FragmentPos() <= Skip) ++itCCEvent;
772              while (itNoteEvent && itNoteEvent->FragmentPos() <= Skip) ++itNoteEvent;              while (itNoteEvent && itNoteEvent->FragmentPos() <= Skip) ++itNoteEvent;
773          }          }
774            
775            uint killPos;
776            if (itKillEvent) killPos = RTMath::Min(itKillEvent->FragmentPos(), pEngine->MaxFadeOutPos);
777    
778          uint i = Skip;          uint i = Skip;
779          while (i < Samples) {          while (i < Samples) {
780              int iSubFragmentEnd = RTMath::Min(i + CONFIG_DEFAULT_SUBFRAGMENT_SIZE, Samples);              int iSubFragmentEnd = RTMath::Min(i + CONFIG_DEFAULT_SUBFRAGMENT_SIZE, Samples);
781                
782              // initialize all final synthesis parameters              // initialize all final synthesis parameters
783              fFinalPitch = PitchBase * PitchBend;              finalSynthesisParameters.fFinalPitch = PitchBase * PitchBend;
             #if CONFIG_PROCESS_MUTED_CHANNELS  
             fFinalVolume = this->Volume * this->CrossfadeVolume * (pEngineChannel->GetMute() ? 0 : pEngineChannel->GlobalVolume));  
             #else  
             fFinalVolume = this->Volume * this->CrossfadeVolume * pEngineChannel->GlobalVolume;  
             #endif  
784              fFinalCutoff    = VCFCutoffCtrl.fvalue;              fFinalCutoff    = VCFCutoffCtrl.fvalue;
785              fFinalResonance = VCFResonanceCtrl.fvalue;              fFinalResonance = VCFResonanceCtrl.fvalue;
786                
787              // process MIDI control change and pitchbend events for this subfragment              // process MIDI control change and pitchbend events for this subfragment
788              processCCEvents(itCCEvent, iSubFragmentEnd);              processCCEvents(itCCEvent, iSubFragmentEnd);
789    
790                float fFinalVolume = VolumeSmoother.render() * CrossfadeSmoother.render();
791    #ifdef CONFIG_PROCESS_MUTED_CHANNELS
792                if (pEngineChannel->GetMute()) fFinalVolume = 0;
793    #endif
794    
795              // process transition events (note on, note off & sustain pedal)              // process transition events (note on, note off & sustain pedal)
796              processTransitionEvents(itNoteEvent, iSubFragmentEnd);              processTransitionEvents(itNoteEvent, iSubFragmentEnd);
797                
798                // if the voice was killed in this subfragment switch EG1 to fade out stage
799                if (itKillEvent && killPos <= iSubFragmentEnd) {
800                    EG1.enterFadeOutStage();
801                    itKillEvent = Pool<Event>::Iterator();
802                }
803    
804              // process envelope generators              // process envelope generators
805              switch (EG1.getSegmentType()) {              switch (EG1.getSegmentType()) {
806                  case EGADSR::segment_lin:                  case EGADSR::segment_lin:
# Line 788  namespace LinuxSampler { namespace gig { Line 824  namespace LinuxSampler { namespace gig {
824                      fFinalCutoff *= EG2.getLevel();                      fFinalCutoff *= EG2.getLevel();
825                      break; // noop                      break; // noop
826              }              }
827              fFinalPitch *= RTMath::CentsToFreqRatio(EG3.render());              if (EG3.active()) finalSynthesisParameters.fFinalPitch *= EG3.render();
828                
829              // process low frequency oscillators              // process low frequency oscillators
830              if (bLFO1Enabled) fFinalVolume *= pLFO1->render();              if (bLFO1Enabled) fFinalVolume *= pLFO1->render();
831              if (bLFO2Enabled) fFinalCutoff *= pLFO2->render();              if (bLFO2Enabled) fFinalCutoff *= pLFO2->render();
832              if (bLFO3Enabled) fFinalPitch  *= RTMath::CentsToFreqRatio(pLFO3->render());              if (bLFO3Enabled) finalSynthesisParameters.fFinalPitch *= RTMath::CentsToFreqRatio(pLFO3->render());
833    
834              // if filter enabled then update filter coefficients              // if filter enabled then update filter coefficients
835              if (SYNTHESIS_MODE_GET_FILTER(SynthesisMode)) {              if (SYNTHESIS_MODE_GET_FILTER(SynthesisMode)) {
836                  FilterLeft.SetParameters(fFinalCutoff, fFinalResonance, pEngine->SampleRate);                  finalSynthesisParameters.filterLeft.SetParameters(fFinalCutoff + 1.0, fFinalResonance, pEngine->SampleRate);
837                  FilterRight.SetParameters(fFinalCutoff, fFinalResonance, pEngine->SampleRate);                  finalSynthesisParameters.filterRight.SetParameters(fFinalCutoff + 1.0, fFinalResonance, pEngine->SampleRate);
838              }              }
839    
840              // how many steps do we calculate for this next subfragment              // do we need resampling?
841              const int steps = iSubFragmentEnd - i;              const float __PLUS_ONE_CENT  = 1.000577789506554859250142541782224725466f;
842                            const float __MINUS_ONE_CENT = 0.9994225441413807496009516495583113737666f;
843              // select the appropriate synthesis mode              const bool bResamplingRequired = !(finalSynthesisParameters.fFinalPitch <= __PLUS_ONE_CENT &&
844              SYNTHESIS_MODE_SET_INTERPOLATE(SynthesisMode, fFinalPitch != 1.0f);                                                 finalSynthesisParameters.fFinalPitch >= __MINUS_ONE_CENT);
845                            SYNTHESIS_MODE_SET_INTERPOLATE(SynthesisMode, bResamplingRequired);
846    
847                // prepare final synthesis parameters structure
848                finalSynthesisParameters.uiToGo            = iSubFragmentEnd - i;
849    #ifdef CONFIG_INTERPOLATE_VOLUME
850                finalSynthesisParameters.fFinalVolumeDeltaLeft  =
851                    (fFinalVolume * VolumeLeft  * PanLeftSmoother.render() -
852                     finalSynthesisParameters.fFinalVolumeLeft) / finalSynthesisParameters.uiToGo;
853                finalSynthesisParameters.fFinalVolumeDeltaRight =
854                    (fFinalVolume * VolumeRight * PanRightSmoother.render() -
855                     finalSynthesisParameters.fFinalVolumeRight) / finalSynthesisParameters.uiToGo;
856    #else
857                finalSynthesisParameters.fFinalVolumeLeft  =
858                    fFinalVolume * VolumeLeft  * PanLeftSmoother.render();
859                finalSynthesisParameters.fFinalVolumeRight =
860                    fFinalVolume * VolumeRight * PanRightSmoother.render();
861    #endif
862              // render audio for one subfragment              // render audio for one subfragment
863              RunSynthesisFunction(SynthesisMode, *this, iSubFragmentEnd, pSrc, i);              RunSynthesisFunction(SynthesisMode, &finalSynthesisParameters, &loop);
864    
865                // stop the rendering if volume EG is finished
866                if (EG1.getSegmentType() == EGADSR::segment_end) break;
867    
868              // increment envelopes' positions                          const double newPos = Pos + (iSubFragmentEnd - i) * finalSynthesisParameters.fFinalPitch;
869    
870                // increment envelopes' positions
871              if (EG1.active()) {              if (EG1.active()) {
872                  EG1.increment(steps);  
873                  if (!EG1.toStageEndLeft()) EG1.update(EGADSR::event_stage_end, this->Pos, fFinalPitch, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);                  // 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
874                    if (pSample->Loops && Pos <= pSample->LoopStart && pSample->LoopStart < newPos) {
875                        EG1.update(EGADSR::event_hold_end, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
876                    }
877    
878                    EG1.increment(1);
879                    if (!EG1.toStageEndLeft()) EG1.update(EGADSR::event_stage_end, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
880              }              }
881              if (EG2.active()) {              if (EG2.active()) {
882                  EG2.increment(steps);                  EG2.increment(1);
883                  if (!EG2.toStageEndLeft()) EG2.update(EGADSR::event_stage_end, this->Pos, fFinalPitch, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);                  if (!EG2.toStageEndLeft()) EG2.update(EGADSR::event_stage_end, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
884              }              }
885              EG3.increment(steps);              EG3.increment(1);
886              if (!EG3.toEndLeft()) EG3.update(); // neutralize envelope coefficient if end reached              if (!EG3.toEndLeft()) EG3.update(); // neutralize envelope coefficient if end reached
887    
888                Pos = newPos;
889                i = iSubFragmentEnd;
890          }          }
891      }      }
892    
893        /** @brief Update current portamento position.
894         *
895         * Will be called when portamento mode is enabled to get the final
896         * portamento position of this active voice from where the next voice(s)
897         * might continue to slide on.
898         *
899         * @param itNoteOffEvent - event which causes this voice to die soon
900         */
901        void Voice::UpdatePortamentoPos(Pool<Event>::Iterator& itNoteOffEvent) {
902            const float fFinalEG3Level = EG3.level(itNoteOffEvent->FragmentPos());
903            pEngineChannel->PortamentoPos = (float) MIDIKey + RTMath::FreqRatioToCents(fFinalEG3Level) * 0.01f;
904        }
905    
906      /**      /**
907       *  Immediately kill the voice. This method should not be used to kill       *  Immediately kill the voice. This method should not be used to kill
908       *  a normal, active voice, because it doesn't take care of things like       *  a normal, active voice, because it doesn't take care of things like
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