/[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 768 by persson, Fri Sep 2 20:11:55 2005 UTC revision 841 by persson, Sat Mar 4 16:23:53 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 305  namespace LinuxSampler { namespace gig { Line 335  namespace LinuxSampler { namespace gig {
335                      pLFO1->ExtController = 0; // no external controller                      pLFO1->ExtController = 0; // no external controller
336                      bLFO1Enabled         = false;                      bLFO1Enabled         = false;
337              }              }
338              if (bLFO1Enabled) pLFO1->trigger(pDimRgn->LFO1Frequency,              if (bLFO1Enabled) {
339                                               start_level_max,                  pLFO1->trigger(pDimRgn->LFO1Frequency,
340                                               lfo1_internal_depth,                                 start_level_max,
341                                               pDimRgn->LFO1ControlDepth,                                 lfo1_internal_depth,
342                                               pDimRgn->LFO1FlipPhase,                                 pDimRgn->LFO1ControlDepth,
343                                               pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);                                 pDimRgn->LFO1FlipPhase,
344                                   pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
345                    pLFO1->update(pLFO1->ExtController ? pEngineChannel->ControllerTable[pLFO1->ExtController] : 0);
346                }
347          }          }
348    
349    
# Line 348  namespace LinuxSampler { namespace gig { Line 381  namespace LinuxSampler { namespace gig {
381                      pLFO2->ExtController = 0; // no external controller                      pLFO2->ExtController = 0; // no external controller
382                      bLFO2Enabled         = false;                      bLFO2Enabled         = false;
383              }              }
384              if (bLFO2Enabled) pLFO2->trigger(pDimRgn->LFO2Frequency,              if (bLFO2Enabled) {
385                                               start_level_max,                  pLFO2->trigger(pDimRgn->LFO2Frequency,
386                                               lfo2_internal_depth,                                 start_level_max,
387                                               pDimRgn->LFO2ControlDepth,                                 lfo2_internal_depth,
388                                               pDimRgn->LFO2FlipPhase,                                 pDimRgn->LFO2ControlDepth,
389                                               pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);                                 pDimRgn->LFO2FlipPhase,
390                                   pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
391                    pLFO2->update(pLFO2->ExtController ? pEngineChannel->ControllerTable[pLFO2->ExtController] : 0);
392                }
393          }          }
394    
395    
# Line 391  namespace LinuxSampler { namespace gig { Line 427  namespace LinuxSampler { namespace gig {
427                      pLFO3->ExtController = 0; // no external controller                      pLFO3->ExtController = 0; // no external controller
428                      bLFO3Enabled         = false;                      bLFO3Enabled         = false;
429              }              }
430              if (bLFO3Enabled) pLFO3->trigger(pDimRgn->LFO3Frequency,              if (bLFO3Enabled) {
431                                               start_level_mid,                  pLFO3->trigger(pDimRgn->LFO3Frequency,
432                                               lfo3_internal_depth,                                 start_level_mid,
433                                               pDimRgn->LFO3ControlDepth,                                 lfo3_internal_depth,
434                                               false,                                 pDimRgn->LFO3ControlDepth,
435                                               pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);                                 false,
436                                   pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
437                    pLFO3->update(pLFO3->ExtController ? pEngineChannel->ControllerTable[pLFO3->ExtController] : 0);
438                }
439          }          }
440    
441    
# Line 469  namespace LinuxSampler { namespace gig { Line 508  namespace LinuxSampler { namespace gig {
508              #endif // CONFIG_OVERRIDE_RESONANCE_CTRL              #endif // CONFIG_OVERRIDE_RESONANCE_CTRL
509    
510              #ifndef CONFIG_OVERRIDE_FILTER_TYPE              #ifndef CONFIG_OVERRIDE_FILTER_TYPE
511              FilterLeft.SetType(pDimRgn->VCFType);              finalSynthesisParameters.filterLeft.SetType(pDimRgn->VCFType);
512              FilterRight.SetType(pDimRgn->VCFType);              finalSynthesisParameters.filterRight.SetType(pDimRgn->VCFType);
513              #else // override filter type              #else // override filter type
514              FilterLeft.SetType(CONFIG_OVERRIDE_FILTER_TYPE);              FilterLeft.SetType(CONFIG_OVERRIDE_FILTER_TYPE);
515              FilterRight.SetType(CONFIG_OVERRIDE_FILTER_TYPE);              FilterRight.SetType(CONFIG_OVERRIDE_FILTER_TYPE);
# Line 490  namespace LinuxSampler { namespace gig { Line 529  namespace LinuxSampler { namespace gig {
529              if (VCFCutoffCtrl.controller) {              if (VCFCutoffCtrl.controller) {
530                  cvalue = pEngineChannel->ControllerTable[VCFCutoffCtrl.controller];                  cvalue = pEngineChannel->ControllerTable[VCFCutoffCtrl.controller];
531                  if (pDimRgn->VCFCutoffControllerInvert) cvalue = 127 - cvalue;                  if (pDimRgn->VCFCutoffControllerInvert) cvalue = 127 - cvalue;
532                    // VCFVelocityScale in this case means Minimum cutoff
533                  if (cvalue < pDimRgn->VCFVelocityScale) cvalue = pDimRgn->VCFVelocityScale;                  if (cvalue < pDimRgn->VCFVelocityScale) cvalue = pDimRgn->VCFVelocityScale;
534              }              }
535              else {              else {
# Line 497  namespace LinuxSampler { namespace gig { Line 537  namespace LinuxSampler { namespace gig {
537              }              }
538              cutoff *= float(cvalue) * 0.00787402f; // (1 / 127)              cutoff *= float(cvalue) * 0.00787402f; // (1 / 127)
539              if (cutoff > 1.0) cutoff = 1.0;              if (cutoff > 1.0) cutoff = 1.0;
540              cutoff = exp(cutoff * FILTER_CUTOFF_COEFF) * CONFIG_FILTER_CUTOFF_MIN;              cutoff = (cutoff < 0.5 ? cutoff * 4826 - 1 : cutoff * 5715 - 449);
541                if (cutoff < 1.0) cutoff = 1.0;
542    
543              // calculate resonance              // calculate resonance
544              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)  
545    
546              VCFCutoffCtrl.fvalue    = cutoff - CONFIG_FILTER_CUTOFF_MIN;              VCFCutoffCtrl.fvalue    = cutoff - 1.0;
547              VCFResonanceCtrl.fvalue = resonance;              VCFResonanceCtrl.fvalue = resonance;
548          }          }
549          else {          else {
# Line 547  namespace LinuxSampler { namespace gig { Line 584  namespace LinuxSampler { namespace gig {
584    
585                      if (DiskVoice) {                      if (DiskVoice) {
586                          // check if we reached the allowed limit of the sample RAM cache                          // check if we reached the allowed limit of the sample RAM cache
587                          if (Pos > MaxRAMPos) {                          if (finalSynthesisParameters.dPos > MaxRAMPos) {
588                              dmsg(5,("Voice: switching to disk playback (Pos=%f)\n", Pos));                              dmsg(5,("Voice: switching to disk playback (Pos=%f)\n", finalSynthesisParameters.dPos));
589                              this->PlaybackState = playback_state_disk;                              this->PlaybackState = playback_state_disk;
590                          }                          }
591                      }                      } else if (finalSynthesisParameters.dPos >= pSample->GetCache().Size / pSample->FrameSize) {
                     else if (Pos >= pSample->GetCache().Size / pSample->FrameSize) {  
592                          this->PlaybackState = playback_state_end;                          this->PlaybackState = playback_state_end;
593                      }                      }
594                  }                  }
# Line 567  namespace LinuxSampler { namespace gig { Line 603  namespace LinuxSampler { namespace gig {
603                              KillImmediately();                              KillImmediately();
604                              return;                              return;
605                          }                          }
606                          DiskStreamRef.pStream->IncrementReadPos(pSample->Channels * (int(Pos) - MaxRAMPos));                          DiskStreamRef.pStream->IncrementReadPos(pSample->Channels * (int(finalSynthesisParameters.dPos) - MaxRAMPos));
607                          Pos -= int(Pos);                          finalSynthesisParameters.dPos -= int(finalSynthesisParameters.dPos);
608                          RealSampleWordsLeftToRead = -1; // -1 means no silence has been added yet                          RealSampleWordsLeftToRead = -1; // -1 means no silence has been added yet
609                      }                      }
610    
# Line 589  namespace LinuxSampler { namespace gig { Line 625  namespace LinuxSampler { namespace gig {
625                      // render current audio fragment                      // render current audio fragment
626                      Synthesize(Samples, ptr, Delay);                      Synthesize(Samples, ptr, Delay);
627    
628                      const int iPos = (int) Pos;                      const int iPos = (int) finalSynthesisParameters.dPos;
629                      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
630                      DiskStreamRef.pStream->IncrementReadPos(readSampleWords);                      DiskStreamRef.pStream->IncrementReadPos(readSampleWords);
631                      Pos -= iPos; // just keep fractional part of Pos                      finalSynthesisParameters.dPos -= iPos; // just keep fractional part of playback position
632    
633                      // 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
634                      if (RealSampleWordsLeftToRead >= 0) {                      if (RealSampleWordsLeftToRead >= 0) {
# Line 607  namespace LinuxSampler { namespace gig { Line 643  namespace LinuxSampler { namespace gig {
643                  break;                  break;
644          }          }
645    
         // Reset synthesis event lists  
         pEngineChannel->pEvents->clear();  
   
646          // Reset delay          // Reset delay
647          Delay = 0;          Delay = 0;
648    
# Line 624  namespace LinuxSampler { namespace gig { Line 657  namespace LinuxSampler { namespace gig {
657       *  suspended / not running.       *  suspended / not running.
658       */       */
659      void Voice::Reset() {      void Voice::Reset() {
660          FilterLeft.Reset();          finalSynthesisParameters.filterLeft.Reset();
661          FilterRight.Reset();          finalSynthesisParameters.filterRight.Reset();
662          DiskStreamRef.pStream = NULL;          DiskStreamRef.pStream = NULL;
663          DiskStreamRef.hStream = 0;          DiskStreamRef.hStream = 0;
664          DiskStreamRef.State   = Stream::state_unused;          DiskStreamRef.State   = Stream::state_unused;
# Line 640  namespace LinuxSampler { namespace gig { Line 673  namespace LinuxSampler { namespace gig {
673       * for the given time.       * for the given time.
674       *       *
675       * @param itEvent - iterator pointing to the next event to be processed       * @param itEvent - iterator pointing to the next event to be processed
676       * @param End     - youngest time stamp where processing should be stopped       * @param End     - youngest time stamp where processing should be stopped
677       */       */
678      void Voice::processTransitionEvents(RTList<Event>::Iterator& itEvent, uint End) {      void Voice::processTransitionEvents(RTList<Event>::Iterator& itEvent, uint End) {
679          for (; itEvent && itEvent->FragmentPos() <= End; ++itEvent) {          for (; itEvent && itEvent->FragmentPos() <= End; ++itEvent) {
680              if (itEvent->Type == Event::type_release) {              if (itEvent->Type == Event::type_release) {
681                  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);
682                  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);
683              } else if (itEvent->Type == Event::type_cancel_release) {              } else if (itEvent->Type == Event::type_cancel_release) {
684                  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);
685                  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);
686              }              }
687          }          }
688      }      }
# Line 659  namespace LinuxSampler { namespace gig { Line 692  namespace LinuxSampler { namespace gig {
692       * the given time.       * the given time.
693       *       *
694       * @param itEvent - iterator pointing to the next event to be processed       * @param itEvent - iterator pointing to the next event to be processed
695       * @param End     - youngest time stamp where processing should be stopped       * @param End     - youngest time stamp where processing should be stopped
696       */       */
697      void Voice::processCCEvents(RTList<Event>::Iterator& itEvent, uint End) {      void Voice::processCCEvents(RTList<Event>::Iterator& itEvent, uint End) {
698          for (; itEvent && itEvent->FragmentPos() <= End; ++itEvent) {          for (; itEvent && itEvent->FragmentPos() <= End; ++itEvent) {
# Line 682  namespace LinuxSampler { namespace gig { Line 715  namespace LinuxSampler { namespace gig {
715                  }                  }
716                  if (pDimRgn->AttenuationController.type == ::gig::attenuation_ctrl_t::type_controlchange &&                  if (pDimRgn->AttenuationController.type == ::gig::attenuation_ctrl_t::type_controlchange &&
717                      itEvent->Param.CC.Controller == pDimRgn->AttenuationController.controller_number) {                      itEvent->Param.CC.Controller == pDimRgn->AttenuationController.controller_number) {
718                      processCrossFadeEvent(itEvent);                      CrossfadeSmoother.update(Engine::CrossfadeCurve[CrossfadeAttenuation(itEvent->Param.CC.Value)]);
719                    }
720                    if (itEvent->Param.CC.Controller == 7) { // volume
721                        VolumeSmoother.update(Engine::VolumeCurve[itEvent->Param.CC.Value] * CONFIG_GLOBAL_ATTENUATION);
722                    } else if (itEvent->Param.CC.Controller == 10) { // panpot
723                        PanLeftSmoother.update(Engine::PanCurve[128 - itEvent->Param.CC.Value]);
724                        PanRightSmoother.update(Engine::PanCurve[itEvent->Param.CC.Value]);
725                  }                  }
726              } else if (itEvent->Type == Event::type_pitchbend) { // if pitch bend event              } else if (itEvent->Type == Event::type_pitchbend) { // if pitch bend event
727                  processPitchEvent(itEvent);                  processPitchEvent(itEvent);
# Line 692  namespace LinuxSampler { namespace gig { Line 731  namespace LinuxSampler { namespace gig {
731    
732      void Voice::processPitchEvent(RTList<Event>::Iterator& itEvent) {      void Voice::processPitchEvent(RTList<Event>::Iterator& itEvent) {
733          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
734          fFinalPitch *= pitch;          finalSynthesisParameters.fFinalPitch *= pitch;
735      }          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;  
736      }      }
737    
738      void Voice::processCutoffEvent(RTList<Event>::Iterator& itEvent) {      void Voice::processCutoffEvent(RTList<Event>::Iterator& itEvent) {
# Line 713  namespace LinuxSampler { namespace gig { Line 743  namespace LinuxSampler { namespace gig {
743          if (ccvalue < pDimRgn->VCFVelocityScale) ccvalue = pDimRgn->VCFVelocityScale;          if (ccvalue < pDimRgn->VCFVelocityScale) ccvalue = pDimRgn->VCFVelocityScale;
744          float cutoff = CutoffBase * float(ccvalue) * 0.00787402f; // (1 / 127)          float cutoff = CutoffBase * float(ccvalue) * 0.00787402f; // (1 / 127)
745          if (cutoff > 1.0) cutoff = 1.0;          if (cutoff > 1.0) cutoff = 1.0;
746          cutoff = exp(cutoff * FILTER_CUTOFF_COEFF) * CONFIG_FILTER_CUTOFF_MIN - CONFIG_FILTER_CUTOFF_MIN;          cutoff = (cutoff < 0.5 ? cutoff * 4826 - 1 : cutoff * 5715 - 449);
747          VCFCutoffCtrl.fvalue = cutoff; // needed for initialization of fFinalCutoff next time          if (cutoff < 1.0) cutoff = 1.0;
748    
749            VCFCutoffCtrl.fvalue = cutoff - 1.0; // needed for initialization of fFinalCutoff next time
750          fFinalCutoff = cutoff;          fFinalCutoff = cutoff;
751      }      }
752    
# Line 737  namespace LinuxSampler { namespace gig { Line 769  namespace LinuxSampler { namespace gig {
769       *  @param Skip    - number of sample points to skip in output buffer       *  @param Skip    - number of sample points to skip in output buffer
770       */       */
771      void Voice::Synthesize(uint Samples, sample_t* pSrc, uint Skip) {      void Voice::Synthesize(uint Samples, sample_t* pSrc, uint Skip) {
772            finalSynthesisParameters.pOutLeft  = &pEngineChannel->pOutputLeft[Skip];
773            finalSynthesisParameters.pOutRight = &pEngineChannel->pOutputRight[Skip];
774            finalSynthesisParameters.pSrc      = pSrc;
775    
776          RTList<Event>::Iterator itCCEvent = pEngineChannel->pEvents->first();          RTList<Event>::Iterator itCCEvent = pEngineChannel->pEvents->first();
777          RTList<Event>::Iterator itNoteEvent = pEngineChannel->pMIDIKeyInfo[MIDIKey].pEvents->first();          RTList<Event>::Iterator itNoteEvent = pEngineChannel->pMIDIKeyInfo[MIDIKey].pEvents->first();
778    
# Line 745  namespace LinuxSampler { namespace gig { Line 781  namespace LinuxSampler { namespace gig {
781              while (itNoteEvent && itNoteEvent->FragmentPos() <= Skip) ++itNoteEvent;              while (itNoteEvent && itNoteEvent->FragmentPos() <= Skip) ++itNoteEvent;
782          }          }
783    
784            uint killPos;
785            if (itKillEvent) killPos = RTMath::Min(itKillEvent->FragmentPos(), pEngine->MaxFadeOutPos);
786    
787          uint i = Skip;          uint i = Skip;
788          while (i < Samples) {          while (i < Samples) {
789              int iSubFragmentEnd = RTMath::Min(i + CONFIG_DEFAULT_SUBFRAGMENT_SIZE, Samples);              int iSubFragmentEnd = RTMath::Min(i + CONFIG_DEFAULT_SUBFRAGMENT_SIZE, Samples);
790    
791              // initialize all final synthesis parameters              // initialize all final synthesis parameters
792              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  
793              fFinalCutoff    = VCFCutoffCtrl.fvalue;              fFinalCutoff    = VCFCutoffCtrl.fvalue;
794              fFinalResonance = VCFResonanceCtrl.fvalue;              fFinalResonance = VCFResonanceCtrl.fvalue;
795    
796              // process MIDI control change and pitchbend events for this subfragment              // process MIDI control change and pitchbend events for this subfragment
797              processCCEvents(itCCEvent, iSubFragmentEnd);              processCCEvents(itCCEvent, iSubFragmentEnd);
798    
799                float fFinalVolume = VolumeSmoother.render() * CrossfadeSmoother.render();
800    #ifdef CONFIG_PROCESS_MUTED_CHANNELS
801                if (pEngineChannel->GetMute()) fFinalVolume = 0;
802    #endif
803    
804              // process transition events (note on, note off & sustain pedal)              // process transition events (note on, note off & sustain pedal)
805              processTransitionEvents(itNoteEvent, iSubFragmentEnd);              processTransitionEvents(itNoteEvent, iSubFragmentEnd);
806    
807                // if the voice was killed in this subfragment switch EG1 to fade out stage
808                if (itKillEvent && killPos <= iSubFragmentEnd) {
809                    EG1.enterFadeOutStage();
810                    itKillEvent = Pool<Event>::Iterator();
811                }
812    
813              // process envelope generators              // process envelope generators
814              switch (EG1.getSegmentType()) {              switch (EG1.getSegmentType()) {
815                  case EGADSR::segment_lin:                  case EGADSR::segment_lin:
# Line 788  namespace LinuxSampler { namespace gig { Line 833  namespace LinuxSampler { namespace gig {
833                      fFinalCutoff *= EG2.getLevel();                      fFinalCutoff *= EG2.getLevel();
834                      break; // noop                      break; // noop
835              }              }
836              fFinalPitch *= RTMath::CentsToFreqRatio(EG3.render());              if (EG3.active()) finalSynthesisParameters.fFinalPitch *= EG3.render();
837    
838              // process low frequency oscillators              // process low frequency oscillators
839              if (bLFO1Enabled) fFinalVolume *= pLFO1->render();              if (bLFO1Enabled) fFinalVolume *= pLFO1->render();
840              if (bLFO2Enabled) fFinalCutoff *= pLFO2->render();              if (bLFO2Enabled) fFinalCutoff *= pLFO2->render();
841              if (bLFO3Enabled) fFinalPitch  *= RTMath::CentsToFreqRatio(pLFO3->render());              if (bLFO3Enabled) finalSynthesisParameters.fFinalPitch *= RTMath::CentsToFreqRatio(pLFO3->render());
842    
843              // if filter enabled then update filter coefficients              // if filter enabled then update filter coefficients
844              if (SYNTHESIS_MODE_GET_FILTER(SynthesisMode)) {              if (SYNTHESIS_MODE_GET_FILTER(SynthesisMode)) {
845                  FilterLeft.SetParameters(fFinalCutoff, fFinalResonance, pEngine->SampleRate);                  finalSynthesisParameters.filterLeft.SetParameters(fFinalCutoff + 1.0, fFinalResonance, pEngine->SampleRate);
846                  FilterRight.SetParameters(fFinalCutoff, fFinalResonance, pEngine->SampleRate);                  finalSynthesisParameters.filterRight.SetParameters(fFinalCutoff + 1.0, fFinalResonance, pEngine->SampleRate);
847              }              }
848    
849              // how many steps do we calculate for this next subfragment              // do we need resampling?
850              const int steps = iSubFragmentEnd - i;              const float __PLUS_ONE_CENT  = 1.000577789506554859250142541782224725466f;
851                const float __MINUS_ONE_CENT = 0.9994225441413807496009516495583113737666f;
852                const bool bResamplingRequired = !(finalSynthesisParameters.fFinalPitch <= __PLUS_ONE_CENT &&
853                                                   finalSynthesisParameters.fFinalPitch >= __MINUS_ONE_CENT);
854                SYNTHESIS_MODE_SET_INTERPOLATE(SynthesisMode, bResamplingRequired);
855    
856                // prepare final synthesis parameters structure
857                finalSynthesisParameters.uiToGo            = iSubFragmentEnd - i;
858    #ifdef CONFIG_INTERPOLATE_VOLUME
859                finalSynthesisParameters.fFinalVolumeDeltaLeft  =
860                    (fFinalVolume * VolumeLeft  * PanLeftSmoother.render() -
861                     finalSynthesisParameters.fFinalVolumeLeft) / finalSynthesisParameters.uiToGo;
862                finalSynthesisParameters.fFinalVolumeDeltaRight =
863                    (fFinalVolume * VolumeRight * PanRightSmoother.render() -
864                     finalSynthesisParameters.fFinalVolumeRight) / finalSynthesisParameters.uiToGo;
865    #else
866                finalSynthesisParameters.fFinalVolumeLeft  =
867                    fFinalVolume * VolumeLeft  * PanLeftSmoother.render();
868                finalSynthesisParameters.fFinalVolumeRight =
869                    fFinalVolume * VolumeRight * PanRightSmoother.render();
870    #endif
871                // render audio for one subfragment
872                RunSynthesisFunction(SynthesisMode, &finalSynthesisParameters, &loop);
873    
874              // select the appropriate synthesis mode              // stop the rendering if volume EG is finished
875              SYNTHESIS_MODE_SET_INTERPOLATE(SynthesisMode, fFinalPitch != 1.0f);              if (EG1.getSegmentType() == EGADSR::segment_end) break;
876    
877              // render audio for one subfragment              const double newPos = Pos + (iSubFragmentEnd - i) * finalSynthesisParameters.fFinalPitch;
             RunSynthesisFunction(SynthesisMode, *this, iSubFragmentEnd, pSrc, i);  
878    
879              // increment envelopes' positions              // increment envelopes' positions
880              if (EG1.active()) {              if (EG1.active()) {
881    
882                    // 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
883                    if (pSample->Loops && Pos <= pSample->LoopStart && pSample->LoopStart < newPos) {
884                        EG1.update(EGADSR::event_hold_end, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
885                    }
886    
887                  EG1.increment(1);                  EG1.increment(1);
888                  if (!EG1.toStageEndLeft()) EG1.update(EGADSR::event_stage_end, this->Pos, fFinalPitch, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);                  if (!EG1.toStageEndLeft()) EG1.update(EGADSR::event_stage_end, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
889              }              }
890              if (EG2.active()) {              if (EG2.active()) {
891                  EG2.increment(1);                  EG2.increment(1);
892                  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);
893              }              }
894              EG3.increment(1);              EG3.increment(1);
895              if (!EG3.toEndLeft()) EG3.update(); // neutralize envelope coefficient if end reached              if (!EG3.toEndLeft()) EG3.update(); // neutralize envelope coefficient if end reached
896    
897                Pos = newPos;
898              i = iSubFragmentEnd;              i = iSubFragmentEnd;
899          }          }
900      }      }
901    
902        /** @brief Update current portamento position.
903         *
904         * Will be called when portamento mode is enabled to get the final
905         * portamento position of this active voice from where the next voice(s)
906         * might continue to slide on.
907         *
908         * @param itNoteOffEvent - event which causes this voice to die soon
909         */
910        void Voice::UpdatePortamentoPos(Pool<Event>::Iterator& itNoteOffEvent) {
911            const float fFinalEG3Level = EG3.level(itNoteOffEvent->FragmentPos());
912            pEngineChannel->PortamentoPos = (float) MIDIKey + RTMath::FreqRatioToCents(fFinalEG3Level) * 0.01f;
913        }
914    
915      /**      /**
916       *  Immediately kill the voice. This method should not be used to kill       *  Immediately kill the voice. This method should not be used to kill
917       *  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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