/[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 769 by schoenebeck, Sat Sep 3 11:14:30 2005 UTC revision 865 by persson, Sun May 14 07:15:52 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;
154          DiskVoice          = cachedsamples < pSample->SamplesTotal;          DiskVoice          = cachedsamples < pSample->SamplesTotal;
155    
156            const DLS::sample_loop_t& loopinfo = pDimRgn->pSampleLoops[0];
157    
158          if (DiskVoice) { // voice to be streamed from disk          if (DiskVoice) { // voice to be streamed from disk
159              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)
160    
161              // 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
162              if (pSample->Loops && pSample->LoopEnd <= MaxRAMPos) {              RAMLoop = (pDimRgn->SampleLoops && (loopinfo.LoopStart + loopinfo.LoopLength) <= MaxRAMPos);
                 RAMLoop        = true;  
                 LoopCyclesLeft = pSample->LoopPlayCount;  
             }  
             else RAMLoop = false;  
163    
164              if (pDiskThread->OrderNewStream(&DiskStreamRef, pSample, MaxRAMPos, !RAMLoop) < 0) {              if (pDiskThread->OrderNewStream(&DiskStreamRef, pDimRgn, MaxRAMPos, !RAMLoop) < 0) {
165                  dmsg(1,("Disk stream order failed!\n"));                  dmsg(1,("Disk stream order failed!\n"));
166                  KillImmediately();                  KillImmediately();
167                  return -1;                  return -1;
# Line 163  namespace LinuxSampler { namespace gig { Line 170  namespace LinuxSampler { namespace gig {
170          }          }
171          else { // RAM only voice          else { // RAM only voice
172              MaxRAMPos = cachedsamples;              MaxRAMPos = cachedsamples;
173              if (pSample->Loops) {              RAMLoop = (pDimRgn->SampleLoops != 0);
                 RAMLoop        = true;  
                 LoopCyclesLeft = pSample->LoopPlayCount;  
             }  
             else RAMLoop = false;  
174              dmsg(4,("RAM only voice launched (Looping: %s)\n", (RAMLoop) ? "yes" : "no"));              dmsg(4,("RAM only voice launched (Looping: %s)\n", (RAMLoop) ? "yes" : "no"));
175          }          }
176            if (RAMLoop) {
177                loop.uiTotalCycles = pSample->LoopPlayCount;
178                loop.uiCyclesLeft  = pSample->LoopPlayCount;
179                loop.uiStart       = loopinfo.LoopStart;
180                loop.uiEnd         = loopinfo.LoopStart + loopinfo.LoopLength;
181                loop.uiSize        = loopinfo.LoopLength;
182            }
183    
184          // calculate initial pitch value          // calculate initial pitch value
185          {          {
# Line 214  namespace LinuxSampler { namespace gig { Line 223  namespace LinuxSampler { namespace gig {
223              EG1.trigger(pDimRgn->EG1PreAttack,              EG1.trigger(pDimRgn->EG1PreAttack,
224                          pDimRgn->EG1Attack * eg1attack,                          pDimRgn->EG1Attack * eg1attack,
225                          pDimRgn->EG1Hold,                          pDimRgn->EG1Hold,
                         pSample->LoopStart,  
226                          pDimRgn->EG1Decay1 * eg1decay * velrelease,                          pDimRgn->EG1Decay1 * eg1decay * velrelease,
227                          pDimRgn->EG1Decay2 * eg1decay * velrelease,                          pDimRgn->EG1Decay2 * eg1decay * velrelease,
228                          pDimRgn->EG1InfiniteSustain,                          pDimRgn->EG1InfiniteSustain,
# Line 224  namespace LinuxSampler { namespace gig { Line 232  namespace LinuxSampler { namespace gig {
232                          pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);                          pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
233          }          }
234    
235    #ifdef CONFIG_INTERPOLATE_VOLUME
236            // setup initial volume in synthesis parameters
237    #ifdef CONFIG_PROCESS_MUTED_CHANNELS
238            if (pEngineChannel->GetMute()) {
239                finalSynthesisParameters.fFinalVolumeLeft  = 0;
240                finalSynthesisParameters.fFinalVolumeRight = 0;
241            }
242            else
243    #else
244            {
245                float finalVolume = pEngineChannel->GlobalVolume * crossfadeVolume * EG1.getLevel();
246    
247                finalSynthesisParameters.fFinalVolumeLeft  = finalVolume * VolumeLeft  * pEngineChannel->GlobalPanLeft;
248                finalSynthesisParameters.fFinalVolumeRight = finalVolume * VolumeRight * pEngineChannel->GlobalPanRight;
249            }
250    #endif
251    #endif
252    
253          // setup EG 2 (VCF Cutoff EG)          // setup EG 2 (VCF Cutoff EG)
254          {          {
# Line 253  namespace LinuxSampler { namespace gig { Line 278  namespace LinuxSampler { namespace gig {
278              EG2.trigger(pDimRgn->EG2PreAttack,              EG2.trigger(pDimRgn->EG2PreAttack,
279                          pDimRgn->EG2Attack * eg2attack,                          pDimRgn->EG2Attack * eg2attack,
280                          false,                          false,
                         pSample->LoopStart,  
281                          pDimRgn->EG2Decay1 * eg2decay * velrelease,                          pDimRgn->EG2Decay1 * eg2decay * velrelease,
282                          pDimRgn->EG2Decay2 * eg2decay * velrelease,                          pDimRgn->EG2Decay2 * eg2decay * velrelease,
283                          pDimRgn->EG2InfiniteSustain,                          pDimRgn->EG2InfiniteSustain,
# Line 266  namespace LinuxSampler { namespace gig { Line 290  namespace LinuxSampler { namespace gig {
290    
291          // setup EG 3 (VCO EG)          // setup EG 3 (VCO EG)
292          {          {
293            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
294            EG3.trigger(eg3depth, pDimRgn->EG3Attack, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);              bool  bPortamento = pEngineChannel->PortamentoMode && pEngineChannel->PortamentoPos >= 0.0f;
295                float eg3depth = (bPortamento)
296                                     ? RTMath::CentsToFreqRatio((pEngineChannel->PortamentoPos - (float) MIDIKey) * 100)
297                                     : RTMath::CentsToFreqRatio(pDimRgn->EG3Depth);
298                float eg3time = (bPortamento)
299                                    ? pEngineChannel->PortamentoTime
300                                    : pDimRgn->EG3Attack;
301                EG3.trigger(eg3depth, eg3time, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
302                dmsg(5,("PortamentoPos=%f, depth=%f, time=%f\n", pEngineChannel->PortamentoPos, eg3depth, eg3time));
303          }          }
304    
305    
# Line 305  namespace LinuxSampler { namespace gig { Line 337  namespace LinuxSampler { namespace gig {
337                      pLFO1->ExtController = 0; // no external controller                      pLFO1->ExtController = 0; // no external controller
338                      bLFO1Enabled         = false;                      bLFO1Enabled         = false;
339              }              }
340              if (bLFO1Enabled) pLFO1->trigger(pDimRgn->LFO1Frequency,              if (bLFO1Enabled) {
341                                               start_level_max,                  pLFO1->trigger(pDimRgn->LFO1Frequency,
342                                               lfo1_internal_depth,                                 start_level_max,
343                                               pDimRgn->LFO1ControlDepth,                                 lfo1_internal_depth,
344                                               pDimRgn->LFO1FlipPhase,                                 pDimRgn->LFO1ControlDepth,
345                                               pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);                                 pDimRgn->LFO1FlipPhase,
346                                   pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
347                    pLFO1->update(pLFO1->ExtController ? pEngineChannel->ControllerTable[pLFO1->ExtController] : 0);
348                }
349          }          }
350    
351    
# Line 348  namespace LinuxSampler { namespace gig { Line 383  namespace LinuxSampler { namespace gig {
383                      pLFO2->ExtController = 0; // no external controller                      pLFO2->ExtController = 0; // no external controller
384                      bLFO2Enabled         = false;                      bLFO2Enabled         = false;
385              }              }
386              if (bLFO2Enabled) pLFO2->trigger(pDimRgn->LFO2Frequency,              if (bLFO2Enabled) {
387                                               start_level_max,                  pLFO2->trigger(pDimRgn->LFO2Frequency,
388                                               lfo2_internal_depth,                                 start_level_max,
389                                               pDimRgn->LFO2ControlDepth,                                 lfo2_internal_depth,
390                                               pDimRgn->LFO2FlipPhase,                                 pDimRgn->LFO2ControlDepth,
391                                               pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);                                 pDimRgn->LFO2FlipPhase,
392                                   pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
393                    pLFO2->update(pLFO2->ExtController ? pEngineChannel->ControllerTable[pLFO2->ExtController] : 0);
394                }
395          }          }
396    
397    
# Line 391  namespace LinuxSampler { namespace gig { Line 429  namespace LinuxSampler { namespace gig {
429                      pLFO3->ExtController = 0; // no external controller                      pLFO3->ExtController = 0; // no external controller
430                      bLFO3Enabled         = false;                      bLFO3Enabled         = false;
431              }              }
432              if (bLFO3Enabled) pLFO3->trigger(pDimRgn->LFO3Frequency,              if (bLFO3Enabled) {
433                                               start_level_mid,                  pLFO3->trigger(pDimRgn->LFO3Frequency,
434                                               lfo3_internal_depth,                                 start_level_mid,
435                                               pDimRgn->LFO3ControlDepth,                                 lfo3_internal_depth,
436                                               false,                                 pDimRgn->LFO3ControlDepth,
437                                               pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);                                 false,
438                                   pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
439                    pLFO3->update(pLFO3->ExtController ? pEngineChannel->ControllerTable[pLFO3->ExtController] : 0);
440                }
441          }          }
442    
443    
# Line 469  namespace LinuxSampler { namespace gig { Line 510  namespace LinuxSampler { namespace gig {
510              #endif // CONFIG_OVERRIDE_RESONANCE_CTRL              #endif // CONFIG_OVERRIDE_RESONANCE_CTRL
511    
512              #ifndef CONFIG_OVERRIDE_FILTER_TYPE              #ifndef CONFIG_OVERRIDE_FILTER_TYPE
513              FilterLeft.SetType(pDimRgn->VCFType);              finalSynthesisParameters.filterLeft.SetType(pDimRgn->VCFType);
514              FilterRight.SetType(pDimRgn->VCFType);              finalSynthesisParameters.filterRight.SetType(pDimRgn->VCFType);
515              #else // override filter type              #else // override filter type
516              FilterLeft.SetType(CONFIG_OVERRIDE_FILTER_TYPE);              FilterLeft.SetType(CONFIG_OVERRIDE_FILTER_TYPE);
517              FilterRight.SetType(CONFIG_OVERRIDE_FILTER_TYPE);              FilterRight.SetType(CONFIG_OVERRIDE_FILTER_TYPE);
# Line 490  namespace LinuxSampler { namespace gig { Line 531  namespace LinuxSampler { namespace gig {
531              if (VCFCutoffCtrl.controller) {              if (VCFCutoffCtrl.controller) {
532                  cvalue = pEngineChannel->ControllerTable[VCFCutoffCtrl.controller];                  cvalue = pEngineChannel->ControllerTable[VCFCutoffCtrl.controller];
533                  if (pDimRgn->VCFCutoffControllerInvert) cvalue = 127 - cvalue;                  if (pDimRgn->VCFCutoffControllerInvert) cvalue = 127 - cvalue;
534                    // VCFVelocityScale in this case means Minimum cutoff
535                  if (cvalue < pDimRgn->VCFVelocityScale) cvalue = pDimRgn->VCFVelocityScale;                  if (cvalue < pDimRgn->VCFVelocityScale) cvalue = pDimRgn->VCFVelocityScale;
536              }              }
537              else {              else {
# Line 497  namespace LinuxSampler { namespace gig { Line 539  namespace LinuxSampler { namespace gig {
539              }              }
540              cutoff *= float(cvalue) * 0.00787402f; // (1 / 127)              cutoff *= float(cvalue) * 0.00787402f; // (1 / 127)
541              if (cutoff > 1.0) cutoff = 1.0;              if (cutoff > 1.0) cutoff = 1.0;
542              cutoff = exp(cutoff * FILTER_CUTOFF_COEFF) * CONFIG_FILTER_CUTOFF_MIN;              cutoff = (cutoff < 0.5 ? cutoff * 4826 - 1 : cutoff * 5715 - 449);
543                if (cutoff < 1.0) cutoff = 1.0;
544    
545              // calculate resonance              // calculate resonance
546              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)  
547    
548              VCFCutoffCtrl.fvalue    = cutoff - CONFIG_FILTER_CUTOFF_MIN;              VCFCutoffCtrl.fvalue    = cutoff - 1.0;
549              VCFResonanceCtrl.fvalue = resonance;              VCFResonanceCtrl.fvalue = resonance;
550          }          }
551          else {          else {
# Line 547  namespace LinuxSampler { namespace gig { Line 586  namespace LinuxSampler { namespace gig {
586    
587                      if (DiskVoice) {                      if (DiskVoice) {
588                          // check if we reached the allowed limit of the sample RAM cache                          // check if we reached the allowed limit of the sample RAM cache
589                          if (Pos > MaxRAMPos) {                          if (finalSynthesisParameters.dPos > MaxRAMPos) {
590                              dmsg(5,("Voice: switching to disk playback (Pos=%f)\n", Pos));                              dmsg(5,("Voice: switching to disk playback (Pos=%f)\n", finalSynthesisParameters.dPos));
591                              this->PlaybackState = playback_state_disk;                              this->PlaybackState = playback_state_disk;
592                          }                          }
593                      }                      } else if (finalSynthesisParameters.dPos >= pSample->GetCache().Size / pSample->FrameSize) {
                     else if (Pos >= pSample->GetCache().Size / pSample->FrameSize) {  
594                          this->PlaybackState = playback_state_end;                          this->PlaybackState = playback_state_end;
595                      }                      }
596                  }                  }
# Line 567  namespace LinuxSampler { namespace gig { Line 605  namespace LinuxSampler { namespace gig {
605                              KillImmediately();                              KillImmediately();
606                              return;                              return;
607                          }                          }
608                          DiskStreamRef.pStream->IncrementReadPos(pSample->Channels * (int(Pos) - MaxRAMPos));                          DiskStreamRef.pStream->IncrementReadPos(pSample->Channels * (int(finalSynthesisParameters.dPos) - MaxRAMPos));
609                          Pos -= int(Pos);                          finalSynthesisParameters.dPos -= int(finalSynthesisParameters.dPos);
610                          RealSampleWordsLeftToRead = -1; // -1 means no silence has been added yet                          RealSampleWordsLeftToRead = -1; // -1 means no silence has been added yet
611                      }                      }
612    
# Line 589  namespace LinuxSampler { namespace gig { Line 627  namespace LinuxSampler { namespace gig {
627                      // render current audio fragment                      // render current audio fragment
628                      Synthesize(Samples, ptr, Delay);                      Synthesize(Samples, ptr, Delay);
629    
630                      const int iPos = (int) Pos;                      const int iPos = (int) finalSynthesisParameters.dPos;
631                      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
632                      DiskStreamRef.pStream->IncrementReadPos(readSampleWords);                      DiskStreamRef.pStream->IncrementReadPos(readSampleWords);
633                      Pos -= iPos; // just keep fractional part of Pos                      finalSynthesisParameters.dPos -= iPos; // just keep fractional part of playback position
634    
635                      // 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
636                      if (RealSampleWordsLeftToRead >= 0) {                      if (RealSampleWordsLeftToRead >= 0) {
# Line 607  namespace LinuxSampler { namespace gig { Line 645  namespace LinuxSampler { namespace gig {
645                  break;                  break;
646          }          }
647    
         // Reset synthesis event lists  
         pEngineChannel->pEvents->clear();  
   
648          // Reset delay          // Reset delay
649          Delay = 0;          Delay = 0;
650    
# Line 624  namespace LinuxSampler { namespace gig { Line 659  namespace LinuxSampler { namespace gig {
659       *  suspended / not running.       *  suspended / not running.
660       */       */
661      void Voice::Reset() {      void Voice::Reset() {
662          FilterLeft.Reset();          finalSynthesisParameters.filterLeft.Reset();
663          FilterRight.Reset();          finalSynthesisParameters.filterRight.Reset();
664          DiskStreamRef.pStream = NULL;          DiskStreamRef.pStream = NULL;
665          DiskStreamRef.hStream = 0;          DiskStreamRef.hStream = 0;
666          DiskStreamRef.State   = Stream::state_unused;          DiskStreamRef.State   = Stream::state_unused;
# Line 640  namespace LinuxSampler { namespace gig { Line 675  namespace LinuxSampler { namespace gig {
675       * for the given time.       * for the given time.
676       *       *
677       * @param itEvent - iterator pointing to the next event to be processed       * @param itEvent - iterator pointing to the next event to be processed
678       * @param End     - youngest time stamp where processing should be stopped       * @param End     - youngest time stamp where processing should be stopped
679       */       */
680      void Voice::processTransitionEvents(RTList<Event>::Iterator& itEvent, uint End) {      void Voice::processTransitionEvents(RTList<Event>::Iterator& itEvent, uint End) {
681          for (; itEvent && itEvent->FragmentPos() <= End; ++itEvent) {          for (; itEvent && itEvent->FragmentPos() <= End; ++itEvent) {
682              if (itEvent->Type == Event::type_release) {              if (itEvent->Type == Event::type_release) {
683                  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);
684                  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);
685              } else if (itEvent->Type == Event::type_cancel_release) {              } else if (itEvent->Type == Event::type_cancel_release) {
686                  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);
687                  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);
688              }              }
689          }          }
690      }      }
# Line 659  namespace LinuxSampler { namespace gig { Line 694  namespace LinuxSampler { namespace gig {
694       * the given time.       * the given time.
695       *       *
696       * @param itEvent - iterator pointing to the next event to be processed       * @param itEvent - iterator pointing to the next event to be processed
697       * @param End     - youngest time stamp where processing should be stopped       * @param End     - youngest time stamp where processing should be stopped
698       */       */
699      void Voice::processCCEvents(RTList<Event>::Iterator& itEvent, uint End) {      void Voice::processCCEvents(RTList<Event>::Iterator& itEvent, uint End) {
700          for (; itEvent && itEvent->FragmentPos() <= End; ++itEvent) {          for (; itEvent && itEvent->FragmentPos() <= End; ++itEvent) {
# Line 682  namespace LinuxSampler { namespace gig { Line 717  namespace LinuxSampler { namespace gig {
717                  }                  }
718                  if (pDimRgn->AttenuationController.type == ::gig::attenuation_ctrl_t::type_controlchange &&                  if (pDimRgn->AttenuationController.type == ::gig::attenuation_ctrl_t::type_controlchange &&
719                      itEvent->Param.CC.Controller == pDimRgn->AttenuationController.controller_number) {                      itEvent->Param.CC.Controller == pDimRgn->AttenuationController.controller_number) {
720                      processCrossFadeEvent(itEvent);                      CrossfadeSmoother.update(Engine::CrossfadeCurve[CrossfadeAttenuation(itEvent->Param.CC.Value)]);
721                    }
722                    if (itEvent->Param.CC.Controller == 7) { // volume
723                        VolumeSmoother.update(Engine::VolumeCurve[itEvent->Param.CC.Value] * CONFIG_GLOBAL_ATTENUATION);
724                    } else if (itEvent->Param.CC.Controller == 10) { // panpot
725                        PanLeftSmoother.update(Engine::PanCurve[128 - itEvent->Param.CC.Value]);
726                        PanRightSmoother.update(Engine::PanCurve[itEvent->Param.CC.Value]);
727                  }                  }
728              } else if (itEvent->Type == Event::type_pitchbend) { // if pitch bend event              } else if (itEvent->Type == Event::type_pitchbend) { // if pitch bend event
729                  processPitchEvent(itEvent);                  processPitchEvent(itEvent);
# Line 692  namespace LinuxSampler { namespace gig { Line 733  namespace LinuxSampler { namespace gig {
733    
734      void Voice::processPitchEvent(RTList<Event>::Iterator& itEvent) {      void Voice::processPitchEvent(RTList<Event>::Iterator& itEvent) {
735          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
736          fFinalPitch *= pitch;          finalSynthesisParameters.fFinalPitch *= pitch;
737          PitchBend = pitch;          PitchBend = pitch;
738      }      }
739    
     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;  
     }  
   
740      void Voice::processCutoffEvent(RTList<Event>::Iterator& itEvent) {      void Voice::processCutoffEvent(RTList<Event>::Iterator& itEvent) {
741          int ccvalue = itEvent->Param.CC.Value;          int ccvalue = itEvent->Param.CC.Value;
742          if (VCFCutoffCtrl.value == ccvalue) return;          if (VCFCutoffCtrl.value == ccvalue) return;
# Line 714  namespace LinuxSampler { namespace gig { Line 745  namespace LinuxSampler { namespace gig {
745          if (ccvalue < pDimRgn->VCFVelocityScale) ccvalue = pDimRgn->VCFVelocityScale;          if (ccvalue < pDimRgn->VCFVelocityScale) ccvalue = pDimRgn->VCFVelocityScale;
746          float cutoff = CutoffBase * float(ccvalue) * 0.00787402f; // (1 / 127)          float cutoff = CutoffBase * float(ccvalue) * 0.00787402f; // (1 / 127)
747          if (cutoff > 1.0) cutoff = 1.0;          if (cutoff > 1.0) cutoff = 1.0;
748          cutoff = exp(cutoff * FILTER_CUTOFF_COEFF) * CONFIG_FILTER_CUTOFF_MIN - CONFIG_FILTER_CUTOFF_MIN;          cutoff = (cutoff < 0.5 ? cutoff * 4826 - 1 : cutoff * 5715 - 449);
749          VCFCutoffCtrl.fvalue = cutoff; // needed for initialization of fFinalCutoff next time          if (cutoff < 1.0) cutoff = 1.0;
750    
751            VCFCutoffCtrl.fvalue = cutoff - 1.0; // needed for initialization of fFinalCutoff next time
752          fFinalCutoff = cutoff;          fFinalCutoff = cutoff;
753      }      }
754    
# Line 738  namespace LinuxSampler { namespace gig { Line 771  namespace LinuxSampler { namespace gig {
771       *  @param Skip    - number of sample points to skip in output buffer       *  @param Skip    - number of sample points to skip in output buffer
772       */       */
773      void Voice::Synthesize(uint Samples, sample_t* pSrc, uint Skip) {      void Voice::Synthesize(uint Samples, sample_t* pSrc, uint Skip) {
774            finalSynthesisParameters.pOutLeft  = &pEngineChannel->pOutputLeft[Skip];
775            finalSynthesisParameters.pOutRight = &pEngineChannel->pOutputRight[Skip];
776            finalSynthesisParameters.pSrc      = pSrc;
777    
778          RTList<Event>::Iterator itCCEvent = pEngineChannel->pEvents->first();          RTList<Event>::Iterator itCCEvent = pEngineChannel->pEvents->first();
779          RTList<Event>::Iterator itNoteEvent = pEngineChannel->pMIDIKeyInfo[MIDIKey].pEvents->first();          RTList<Event>::Iterator itNoteEvent = pEngineChannel->pMIDIKeyInfo[MIDIKey].pEvents->first();
780    
# Line 746  namespace LinuxSampler { namespace gig { Line 783  namespace LinuxSampler { namespace gig {
783              while (itNoteEvent && itNoteEvent->FragmentPos() <= Skip) ++itNoteEvent;              while (itNoteEvent && itNoteEvent->FragmentPos() <= Skip) ++itNoteEvent;
784          }          }
785    
786            uint killPos;
787            if (itKillEvent) killPos = RTMath::Min(itKillEvent->FragmentPos(), pEngine->MaxFadeOutPos);
788    
789          uint i = Skip;          uint i = Skip;
790          while (i < Samples) {          while (i < Samples) {
791              int iSubFragmentEnd = RTMath::Min(i + CONFIG_DEFAULT_SUBFRAGMENT_SIZE, Samples);              int iSubFragmentEnd = RTMath::Min(i + CONFIG_DEFAULT_SUBFRAGMENT_SIZE, Samples);
792    
793              // initialize all final synthesis parameters              // initialize all final synthesis parameters
794              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  
795              fFinalCutoff    = VCFCutoffCtrl.fvalue;              fFinalCutoff    = VCFCutoffCtrl.fvalue;
796              fFinalResonance = VCFResonanceCtrl.fvalue;              fFinalResonance = VCFResonanceCtrl.fvalue;
797    
798              // process MIDI control change and pitchbend events for this subfragment              // process MIDI control change and pitchbend events for this subfragment
799              processCCEvents(itCCEvent, iSubFragmentEnd);              processCCEvents(itCCEvent, iSubFragmentEnd);
800    
801                float fFinalVolume = VolumeSmoother.render() * CrossfadeSmoother.render();
802    #ifdef CONFIG_PROCESS_MUTED_CHANNELS
803                if (pEngineChannel->GetMute()) fFinalVolume = 0;
804    #endif
805    
806              // process transition events (note on, note off & sustain pedal)              // process transition events (note on, note off & sustain pedal)
807              processTransitionEvents(itNoteEvent, iSubFragmentEnd);              processTransitionEvents(itNoteEvent, iSubFragmentEnd);
808    
809                // if the voice was killed in this subfragment switch EG1 to fade out stage
810                if (itKillEvent && killPos <= iSubFragmentEnd) {
811                    EG1.enterFadeOutStage();
812                    itKillEvent = Pool<Event>::Iterator();
813                }
814    
815              // process envelope generators              // process envelope generators
816              switch (EG1.getSegmentType()) {              switch (EG1.getSegmentType()) {
817                  case EGADSR::segment_lin:                  case EGADSR::segment_lin:
# Line 789  namespace LinuxSampler { namespace gig { Line 835  namespace LinuxSampler { namespace gig {
835                      fFinalCutoff *= EG2.getLevel();                      fFinalCutoff *= EG2.getLevel();
836                      break; // noop                      break; // noop
837              }              }
838              fFinalPitch *= RTMath::CentsToFreqRatio(EG3.render());              if (EG3.active()) finalSynthesisParameters.fFinalPitch *= EG3.render();
839    
840              // process low frequency oscillators              // process low frequency oscillators
841              if (bLFO1Enabled) fFinalVolume *= pLFO1->render();              if (bLFO1Enabled) fFinalVolume *= pLFO1->render();
842              if (bLFO2Enabled) fFinalCutoff *= pLFO2->render();              if (bLFO2Enabled) fFinalCutoff *= pLFO2->render();
843              if (bLFO3Enabled) fFinalPitch  *= RTMath::CentsToFreqRatio(pLFO3->render());              if (bLFO3Enabled) finalSynthesisParameters.fFinalPitch *= RTMath::CentsToFreqRatio(pLFO3->render());
844    
845              // if filter enabled then update filter coefficients              // if filter enabled then update filter coefficients
846              if (SYNTHESIS_MODE_GET_FILTER(SynthesisMode)) {              if (SYNTHESIS_MODE_GET_FILTER(SynthesisMode)) {
847                  FilterLeft.SetParameters(fFinalCutoff, fFinalResonance, pEngine->SampleRate);                  finalSynthesisParameters.filterLeft.SetParameters(fFinalCutoff + 1.0, fFinalResonance, pEngine->SampleRate);
848                  FilterRight.SetParameters(fFinalCutoff, fFinalResonance, pEngine->SampleRate);                  finalSynthesisParameters.filterRight.SetParameters(fFinalCutoff + 1.0, fFinalResonance, pEngine->SampleRate);
849              }              }
850    
851              // how many steps do we calculate for this next subfragment              // do we need resampling?
852              const int steps = iSubFragmentEnd - i;              const float __PLUS_ONE_CENT  = 1.000577789506554859250142541782224725466f;
853                const float __MINUS_ONE_CENT = 0.9994225441413807496009516495583113737666f;
854                const bool bResamplingRequired = !(finalSynthesisParameters.fFinalPitch <= __PLUS_ONE_CENT &&
855                                                   finalSynthesisParameters.fFinalPitch >= __MINUS_ONE_CENT);
856                SYNTHESIS_MODE_SET_INTERPOLATE(SynthesisMode, bResamplingRequired);
857    
858                // prepare final synthesis parameters structure
859                finalSynthesisParameters.uiToGo            = iSubFragmentEnd - i;
860    #ifdef CONFIG_INTERPOLATE_VOLUME
861                finalSynthesisParameters.fFinalVolumeDeltaLeft  =
862                    (fFinalVolume * VolumeLeft  * PanLeftSmoother.render() -
863                     finalSynthesisParameters.fFinalVolumeLeft) / finalSynthesisParameters.uiToGo;
864                finalSynthesisParameters.fFinalVolumeDeltaRight =
865                    (fFinalVolume * VolumeRight * PanRightSmoother.render() -
866                     finalSynthesisParameters.fFinalVolumeRight) / finalSynthesisParameters.uiToGo;
867    #else
868                finalSynthesisParameters.fFinalVolumeLeft  =
869                    fFinalVolume * VolumeLeft  * PanLeftSmoother.render();
870                finalSynthesisParameters.fFinalVolumeRight =
871                    fFinalVolume * VolumeRight * PanRightSmoother.render();
872    #endif
873                // render audio for one subfragment
874                RunSynthesisFunction(SynthesisMode, &finalSynthesisParameters, &loop);
875    
876              // select the appropriate synthesis mode              // stop the rendering if volume EG is finished
877              SYNTHESIS_MODE_SET_INTERPOLATE(SynthesisMode, fFinalPitch != 1.0f);              if (EG1.getSegmentType() == EGADSR::segment_end) break;
878    
879              // render audio for one subfragment              const double newPos = Pos + (iSubFragmentEnd - i) * finalSynthesisParameters.fFinalPitch;
             RunSynthesisFunction(SynthesisMode, *this, iSubFragmentEnd, pSrc, i);  
880    
881              // increment envelopes' positions              // increment envelopes' positions
882              if (EG1.active()) {              if (EG1.active()) {
883    
884                    // 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
885                    if (pDimRgn->SampleLoops && Pos <= pDimRgn->pSampleLoops[0].LoopStart && pDimRgn->pSampleLoops[0].LoopStart < newPos) {
886                        EG1.update(EGADSR::event_hold_end, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
887                    }
888    
889                  EG1.increment(1);                  EG1.increment(1);
890                  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);
891              }              }
892              if (EG2.active()) {              if (EG2.active()) {
893                  EG2.increment(1);                  EG2.increment(1);
894                  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);
895              }              }
896              EG3.increment(1);              EG3.increment(1);
897              if (!EG3.toEndLeft()) EG3.update(); // neutralize envelope coefficient if end reached              if (!EG3.toEndLeft()) EG3.update(); // neutralize envelope coefficient if end reached
898    
899                Pos = newPos;
900              i = iSubFragmentEnd;              i = iSubFragmentEnd;
901          }          }
902      }      }
903    
904        /** @brief Update current portamento position.
905         *
906         * Will be called when portamento mode is enabled to get the final
907         * portamento position of this active voice from where the next voice(s)
908         * might continue to slide on.
909         *
910         * @param itNoteOffEvent - event which causes this voice to die soon
911         */
912        void Voice::UpdatePortamentoPos(Pool<Event>::Iterator& itNoteOffEvent) {
913            const float fFinalEG3Level = EG3.level(itNoteOffEvent->FragmentPos());
914            pEngineChannel->PortamentoPos = (float) MIDIKey + RTMath::FreqRatioToCents(fFinalEG3Level) * 0.01f;
915        }
916    
917      /**      /**
918       *  Immediately kill the voice. This method should not be used to kill       *  Immediately kill the voice. This method should not be used to kill
919       *  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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