/[svn]/linuxsampler/trunk/src/engines/gig/Voice.cpp
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revision 791 by persson, Sun Oct 16 14:50:20 2005 UTC revision 3626 by schoenebeck, Thu Oct 3 14:40:17 2019 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 - 2008 Christian Schoenebeck                       *
7     *   Copyright (C) 2009 Christian Schoenebeck and Grigor Iliev             *
8     *   Copyright (C) 2010 - 2017 Christian Schoenebeck and Andreas Persson   *
9   *                                                                         *   *                                                                         *
10   *   This program is free software; you can redistribute it and/or modify  *   *   This program is free software; you can redistribute it and/or modify  *
11   *   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 24  Line 26 
26  #include "../../common/Features.h"  #include "../../common/Features.h"
27  #include "Synthesizer.h"  #include "Synthesizer.h"
28  #include "Profiler.h"  #include "Profiler.h"
29    #include "Engine.h"
30    #include "EngineChannel.h"
31    
32  #include "Voice.h"  #include "Voice.h"
33    
34  namespace LinuxSampler { namespace gig {  namespace LinuxSampler { namespace gig {
35    
36      const float Voice::FILTER_CUTOFF_COEFF(CalculateFilterCutoffCoeff());      // sanity checks: fromGigLfoWave() assumes equally mapped enums
37        static_assert(::gig::lfo_wave_sine == LFO::wave_sine);
38      float Voice::CalculateFilterCutoffCoeff() {      static_assert(::gig::lfo_wave_triangle == LFO::wave_triangle);
39          return log(CONFIG_FILTER_CUTOFF_MAX / CONFIG_FILTER_CUTOFF_MIN);      static_assert(::gig::lfo_wave_saw == LFO::wave_saw);
40        static_assert(::gig::lfo_wave_square == LFO::wave_square);
41    
42        // converts ::gig::lfo_wave_t (libgig) -> LFO::wave_t (LinuxSampler)
43        inline LFO::wave_t fromGigLfoWave(::gig::lfo_wave_t wave) {
44            // simply assuming equally mapped enums on both sides
45            return static_cast<LFO::wave_t>(wave);
46      }      }
47    
48      Voice::Voice() {      Voice::Voice() {
49          pEngine     = NULL;          pEngine = NULL;
50          pDiskThread = NULL;          pEG1 = &EG1;
51          PlaybackState = playback_state_end;          pEG2 = &EG2;
         pLFO1 = new LFOUnsigned(1.0f);  // amplitude EG (0..1 range)  
         pLFO2 = new LFOUnsigned(1.0f);  // filter EG (0..1 range)  
         pLFO3 = new LFOSigned(1200.0f); // pitch EG (-1200..+1200 range)  
         KeyGroup = 0;  
         SynthesisMode = 0; // set all mode bits to 0 first  
         // select synthesis implementation (currently either pure C++ or MMX+SSE(1))  
         #if CONFIG_ASM && ARCH_X86  
         SYNTHESIS_MODE_SET_IMPLEMENTATION(SynthesisMode, Features::supportsMMX() && Features::supportsSSE());  
         #else  
         SYNTHESIS_MODE_SET_IMPLEMENTATION(SynthesisMode, false);  
         #endif  
         SYNTHESIS_MODE_SET_PROFILING(SynthesisMode, Profiler::isEnabled());  
   
         finalSynthesisParameters.filterLeft.Reset();  
         finalSynthesisParameters.filterRight.Reset();  
52      }      }
53    
54      Voice::~Voice() {      Voice::~Voice() {
         if (pLFO1) delete pLFO1;  
         if (pLFO2) delete pLFO2;  
         if (pLFO3) delete pLFO3;  
55      }      }
56    
57      void Voice::SetEngine(Engine* pEngine) {      EngineChannel* Voice::GetGigEngineChannel() {
58          this->pEngine     = pEngine;          return static_cast<EngineChannel*>(pEngineChannel);
59          this->pDiskThread = pEngine->pDiskThread;      }
60    
61        void Voice::SetEngine(LinuxSampler::Engine* pEngine) {
62            Engine* engine = static_cast<Engine*>(pEngine);
63            this->pEngine     = engine;
64            this->pDiskThread = engine->pDiskThread;
65          dmsg(6,("Voice::SetEngine()\n"));          dmsg(6,("Voice::SetEngine()\n"));
66      }      }
67    
68      /**      Voice::SampleInfo Voice::GetSampleInfo() {
69       *  Initializes and triggers the voice, a disk stream will be launched if          SampleInfo si;
70       *  needed.          si.SampleRate       = pSample->SamplesPerSecond;
71       *          si.ChannelCount     = pSample->Channels;
72       *  @param pEngineChannel - engine channel on which this voice was ordered          si.FrameSize        = pSample->FrameSize;
73       *  @param itNoteOnEvent  - event that caused triggering of this voice          si.BitDepth         = pSample->BitDepth;
74       *  @param PitchBend      - MIDI detune factor (-8192 ... +8191)          si.TotalFrameCount  = (uint)pSample->SamplesTotal;
      *  @param pDimRgn        - points to the dimension region which provides sample wave(s) and articulation data  
      *  @param VoiceType      - type of this voice  
      *  @param iKeyGroup      - a value > 0 defines a key group in which this voice is member of  
      *  @returns 0 on success, a value < 0 if the voice wasn't triggered  
      *           (either due to an error or e.g. because no region is  
      *           defined for the given key)  
      */  
     int Voice::Trigger(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itNoteOnEvent, int PitchBend, ::gig::DimensionRegion* pDimRgn, type_t VoiceType, int iKeyGroup) {  
         this->pEngineChannel = pEngineChannel;  
         this->pDimRgn        = pDimRgn;  
   
         #if CONFIG_DEVMODE  
         if (itNoteOnEvent->FragmentPos() > pEngine->MaxSamplesPerCycle) { // just a sanity check for debugging  
             dmsg(1,("Voice::Trigger(): ERROR, TriggerDelay > Totalsamples\n"));  
         }  
         #endif // CONFIG_DEVMODE  
   
         Type            = VoiceType;  
         MIDIKey         = itNoteOnEvent->Param.Note.Key;  
         PlaybackState   = playback_state_init; // mark voice as triggered, but no audio rendered yet  
         Delay           = itNoteOnEvent->FragmentPos();  
         itTriggerEvent  = itNoteOnEvent;  
         itKillEvent     = Pool<Event>::Iterator();  
         KeyGroup        = iKeyGroup;  
         pSample         = pDimRgn->pSample; // sample won't change until the voice is finished  
   
         // calculate volume  
         const double velocityAttenuation = pDimRgn->GetVelocityAttenuation(itNoteOnEvent->Param.Note.Velocity);  
   
         Volume = velocityAttenuation / 32768.0f; // we downscale by 32768 to convert from int16 value range to DSP value range (which is -1.0..1.0)  
   
         Volume *= pDimRgn->SampleAttenuation;  
   
         // the volume of release triggered samples depends on note length  
         if (Type == type_release_trigger) {  
             float noteLength = float(pEngine->FrameTime + Delay -  
                                      pEngineChannel->pMIDIKeyInfo[MIDIKey].NoteOnTime) / pEngine->SampleRate;  
             float attenuation = 1 - 0.01053 * (256 >> pDimRgn->ReleaseTriggerDecay) * noteLength;  
             if (attenuation <= 0) return -1;  
             Volume *= attenuation;  
         }  
75    
76          // select channel mode (mono or stereo)          si.HasLoops       = pRegion->SampleLoops;
77          SYNTHESIS_MODE_SET_CHANNELS(SynthesisMode, pSample->Channels == 2);          si.LoopStart      = (si.HasLoops) ? pRegion->pSampleLoops[0].LoopStart  : 0;
78            si.LoopLength     = (si.HasLoops) ? pRegion->pSampleLoops[0].LoopLength : 0;
79            si.LoopPlayCount  = pSample->LoopPlayCount;
80            si.Unpitched      = !pRegion->PitchTrack;
81    
82          // get starting crossfade volume level          return si;
83          switch (pDimRgn->AttenuationController.type) {      }
             case ::gig::attenuation_ctrl_t::type_channelaftertouch:  
                 CrossfadeVolume = 1.0f; //TODO: aftertouch not supported yet  
                 break;  
             case ::gig::attenuation_ctrl_t::type_velocity:  
                 CrossfadeVolume = CrossfadeAttenuation(itNoteOnEvent->Param.Note.Velocity);  
                 break;  
             case ::gig::attenuation_ctrl_t::type_controlchange: //FIXME: currently not sample accurate  
                 CrossfadeVolume = CrossfadeAttenuation(pEngineChannel->ControllerTable[pDimRgn->AttenuationController.controller_number]);  
                 break;  
             case ::gig::attenuation_ctrl_t::type_none: // no crossfade defined  
             default:  
                 CrossfadeVolume = 1.0f;  
         }  
84    
85          PanLeft  = 1.0f - float(RTMath::Max(pDimRgn->Pan, 0)) /  63.0f;      Voice::RegionInfo Voice::GetRegionInfo() {
86          PanRight = 1.0f - float(RTMath::Min(pDimRgn->Pan, 0)) / -64.0f;          RegionInfo ri;
87            ri.UnityNote = pRegion->UnityNote;
88            ri.FineTune  = pRegion->FineTune;
89            ri.Pan       = pRegion->Pan;
90            ri.SampleStartOffset = pRegion->SampleStartOffset;
91    
92          finalSynthesisParameters.dPos = pDimRgn->SampleStartOffset; // offset where we should start playback of sample (0 - 2000 sample points)          ri.EG2PreAttack        = pRegion->EG2PreAttack;
93          Pos = pDimRgn->SampleStartOffset;          ri.EG2Attack           = pRegion->EG2Attack;
94            ri.EG2Decay1           = pRegion->EG2Decay1;
95            ri.EG2Decay2           = pRegion->EG2Decay2;
96            ri.EG2Sustain          = pRegion->EG2Sustain;
97            ri.EG2InfiniteSustain  = pRegion->EG2InfiniteSustain;
98            ri.EG2Release          = pRegion->EG2Release;
99    
100          // Check if the sample needs disk streaming or is too short for that          ri.EG3Attack     = pRegion->EG3Attack;
101          long cachedsamples = pSample->GetCache().Size / pSample->FrameSize;          ri.EG3Depth      = pRegion->EG3Depth;
102          DiskVoice          = cachedsamples < pSample->SamplesTotal;          ri.VCFEnabled    = pRegion->VCFEnabled;
103            ri.VCFType       = Filter::vcf_type_t(pRegion->VCFType);
104          if (DiskVoice) { // voice to be streamed from disk          ri.VCFResonance  = pRegion->VCFResonance;
             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)  
   
             // check if there's a loop defined which completely fits into the cached (RAM) part of the sample  
             if (pSample->Loops && pSample->LoopEnd <= MaxRAMPos) {  
                 RAMLoop            = true;  
                 loop.uiTotalCycles = pSample->LoopPlayCount;  
                 loop.uiCyclesLeft  = pSample->LoopPlayCount;  
                 loop.uiStart       = pSample->LoopStart;  
                 loop.uiEnd         = pSample->LoopEnd;  
                 loop.uiSize        = pSample->LoopSize;  
             }  
             else RAMLoop = false;  
   
             if (pDiskThread->OrderNewStream(&DiskStreamRef, pSample, MaxRAMPos, !RAMLoop) < 0) {  
                 dmsg(1,("Disk stream order failed!\n"));  
                 KillImmediately();  
                 return -1;  
             }  
             dmsg(4,("Disk voice launched (cached samples: %d, total Samples: %d, MaxRAMPos: %d, RAMLooping: %s)\n", cachedsamples, pSample->SamplesTotal, MaxRAMPos, (RAMLoop) ? "yes" : "no"));  
         }  
         else { // RAM only voice  
             MaxRAMPos = cachedsamples;  
             if (pSample->Loops) {  
                 RAMLoop           = true;  
                 loop.uiCyclesLeft = pSample->LoopPlayCount;  
             }  
             else RAMLoop = false;  
             dmsg(4,("RAM only voice launched (Looping: %s)\n", (RAMLoop) ? "yes" : "no"));  
         }  
105    
106            ri.ReleaseTriggerDecay = 0.01053 * (256 >> pRegion->ReleaseTriggerDecay);
107    
108          // calculate initial pitch value          return ri;
109          {      }
             double pitchbasecents = pDimRgn->FineTune + (int) pEngine->ScaleTuning[MIDIKey % 12];  
             if (pDimRgn->PitchTrack) pitchbasecents += (MIDIKey - (int) pDimRgn->UnityNote) * 100;  
             this->PitchBase = RTMath::CentsToFreqRatio(pitchbasecents) * (double(pSample->SamplesPerSecond) / double(pEngine->SampleRate));  
             this->PitchBend = RTMath::CentsToFreqRatio(((double) PitchBend / 8192.0) * 200.0); // pitchbend wheel +-2 semitones = 200 cents  
         }  
   
         // the length of the decay and release curves are dependent on the velocity  
         const double velrelease = 1 / pDimRgn->GetVelocityRelease(itNoteOnEvent->Param.Note.Velocity);  
   
         // setup EG 1 (VCA EG)  
         {  
             // get current value of EG1 controller  
             double eg1controllervalue;  
             switch (pDimRgn->EG1Controller.type) {  
                 case ::gig::eg1_ctrl_t::type_none: // no controller defined  
                     eg1controllervalue = 0;  
                     break;  
                 case ::gig::eg1_ctrl_t::type_channelaftertouch:  
                     eg1controllervalue = 0; // TODO: aftertouch not yet supported  
                     break;  
                 case ::gig::eg1_ctrl_t::type_velocity:  
                     eg1controllervalue = itNoteOnEvent->Param.Note.Velocity;  
                     break;  
                 case ::gig::eg1_ctrl_t::type_controlchange: // MIDI control change controller  
                     eg1controllervalue = pEngineChannel->ControllerTable[pDimRgn->EG1Controller.controller_number];  
                     break;  
             }  
             if (pDimRgn->EG1ControllerInvert) eg1controllervalue = 127 - eg1controllervalue;  
110    
111              // calculate influence of EG1 controller on EG1's parameters      Voice::InstrumentInfo Voice::GetInstrumentInfo() {
112              // (eg1attack is different from the others)          InstrumentInfo ii;
113              double eg1attack  = (pDimRgn->EG1ControllerAttackInfluence)  ?          ii.FineTune = GetGigEngineChannel()->pInstrument->FineTune;
114                  1 + 0.031 * (double) (pDimRgn->EG1ControllerAttackInfluence == 1 ?          ii.PitchbendRange = GetGigEngineChannel()->pInstrument->PitchbendRange;
                                       1 : 1 << pDimRgn->EG1ControllerAttackInfluence) * eg1controllervalue : 1.0;  
             double eg1decay   = (pDimRgn->EG1ControllerDecayInfluence)   ? 1 + 0.00775 * (double) (1 << pDimRgn->EG1ControllerDecayInfluence)   * eg1controllervalue : 1.0;  
             double eg1release = (pDimRgn->EG1ControllerReleaseInfluence) ? 1 + 0.00775 * (double) (1 << pDimRgn->EG1ControllerReleaseInfluence) * eg1controllervalue : 1.0;  
   
             EG1.trigger(pDimRgn->EG1PreAttack,  
                         pDimRgn->EG1Attack * eg1attack,  
                         pDimRgn->EG1Hold,  
                         pDimRgn->EG1Decay1 * eg1decay * velrelease,  
                         pDimRgn->EG1Decay2 * eg1decay * velrelease,  
                         pDimRgn->EG1InfiniteSustain,  
                         pDimRgn->EG1Sustain,  
                         pDimRgn->EG1Release * eg1release * velrelease,  
                         velocityAttenuation,  
                         pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);  
         }  
115    
116            return ii;
117        }
118    
119          // setup EG 2 (VCF Cutoff EG)      double Voice::GetSampleAttenuation() {
120          {          return pRegion->SampleAttenuation;
121              // get current value of EG2 controller      }
             double eg2controllervalue;  
             switch (pDimRgn->EG2Controller.type) {  
                 case ::gig::eg2_ctrl_t::type_none: // no controller defined  
                     eg2controllervalue = 0;  
                     break;  
                 case ::gig::eg2_ctrl_t::type_channelaftertouch:  
                     eg2controllervalue = 0; // TODO: aftertouch not yet supported  
                     break;  
                 case ::gig::eg2_ctrl_t::type_velocity:  
                     eg2controllervalue = itNoteOnEvent->Param.Note.Velocity;  
                     break;  
                 case ::gig::eg2_ctrl_t::type_controlchange: // MIDI control change controller  
                     eg2controllervalue = pEngineChannel->ControllerTable[pDimRgn->EG2Controller.controller_number];  
                     break;  
             }  
             if (pDimRgn->EG2ControllerInvert) eg2controllervalue = 127 - eg2controllervalue;  
122    
123              // calculate influence of EG2 controller on EG2's parameters      double Voice::GetVelocityAttenuation(uint8_t MIDIKeyVelocity) {
124              double eg2attack  = (pDimRgn->EG2ControllerAttackInfluence)  ? 1 + 0.00775 * (double) (1 << pDimRgn->EG2ControllerAttackInfluence)  * eg2controllervalue : 1.0;          return pRegion->GetVelocityAttenuation(MIDIKeyVelocity);
125              double eg2decay   = (pDimRgn->EG2ControllerDecayInfluence)   ? 1 + 0.00775 * (double) (1 << pDimRgn->EG2ControllerDecayInfluence)   * eg2controllervalue : 1.0;      }
             double eg2release = (pDimRgn->EG2ControllerReleaseInfluence) ? 1 + 0.00775 * (double) (1 << pDimRgn->EG2ControllerReleaseInfluence) * eg2controllervalue : 1.0;  
   
             EG2.trigger(pDimRgn->EG2PreAttack,  
                         pDimRgn->EG2Attack * eg2attack,  
                         false,  
                         pDimRgn->EG2Decay1 * eg2decay * velrelease,  
                         pDimRgn->EG2Decay2 * eg2decay * velrelease,  
                         pDimRgn->EG2InfiniteSustain,  
                         pDimRgn->EG2Sustain,  
                         pDimRgn->EG2Release * eg2release * velrelease,  
                         velocityAttenuation,  
                         pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);  
         }  
126    
127        double Voice::GetVelocityRelease(uint8_t MIDIKeyVelocity) {
128            return pRegion->GetVelocityRelease(MIDIKeyVelocity);
129        }
130    
131          // setup EG 3 (VCO EG)      void Voice::ProcessCCEvent(RTList<Event>::Iterator& itEvent) {
132          {          if (itEvent->Type == Event::type_control_change && itEvent->Param.CC.Controller) { // if (valid) MIDI control change event
133            double eg3depth = RTMath::CentsToFreqRatio(pDimRgn->EG3Depth);              if (pRegion->AttenuationController.type == ::gig::attenuation_ctrl_t::type_controlchange &&
134            EG3.trigger(eg3depth, pDimRgn->EG3Attack, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);                  itEvent->Param.CC.Controller == pRegion->AttenuationController.controller_number) {
135                    CrossfadeSmoother.update(AbstractEngine::CrossfadeCurve[CrossfadeAttenuation(itEvent->Param.CC.Value)]);
136                }
137          }          }
138        }
139    
140        void Voice::ProcessChannelPressureEvent(RTList<Event>::Iterator& itEvent) {
141          // setup LFO 1 (VCA LFO)          if (itEvent->Type == Event::type_channel_pressure) { // if (valid) MIDI channel pressure (aftertouch) event
142          {              if (pRegion->AttenuationController.type == ::gig::attenuation_ctrl_t::type_channelaftertouch) {
143              uint16_t lfo1_internal_depth;                  CrossfadeSmoother.update(AbstractEngine::CrossfadeCurve[CrossfadeAttenuation(itEvent->Param.ChannelPressure.Value)]);
             switch (pDimRgn->LFO1Controller) {  
                 case ::gig::lfo1_ctrl_internal:  
                     lfo1_internal_depth  = pDimRgn->LFO1InternalDepth;  
                     pLFO1->ExtController = 0; // no external controller  
                     bLFO1Enabled         = (lfo1_internal_depth > 0);  
                     break;  
                 case ::gig::lfo1_ctrl_modwheel:  
                     lfo1_internal_depth  = 0;  
                     pLFO1->ExtController = 1; // MIDI controller 1  
                     bLFO1Enabled         = (pDimRgn->LFO1ControlDepth > 0);  
                     break;  
                 case ::gig::lfo1_ctrl_breath:  
                     lfo1_internal_depth  = 0;  
                     pLFO1->ExtController = 2; // MIDI controller 2  
                     bLFO1Enabled         = (pDimRgn->LFO1ControlDepth > 0);  
                     break;  
                 case ::gig::lfo1_ctrl_internal_modwheel:  
                     lfo1_internal_depth  = pDimRgn->LFO1InternalDepth;  
                     pLFO1->ExtController = 1; // MIDI controller 1  
                     bLFO1Enabled         = (lfo1_internal_depth > 0 || pDimRgn->LFO1ControlDepth > 0);  
                     break;  
                 case ::gig::lfo1_ctrl_internal_breath:  
                     lfo1_internal_depth  = pDimRgn->LFO1InternalDepth;  
                     pLFO1->ExtController = 2; // MIDI controller 2  
                     bLFO1Enabled         = (lfo1_internal_depth > 0 || pDimRgn->LFO1ControlDepth > 0);  
                     break;  
                 default:  
                     lfo1_internal_depth  = 0;  
                     pLFO1->ExtController = 0; // no external controller  
                     bLFO1Enabled         = false;  
144              }              }
             if (bLFO1Enabled) pLFO1->trigger(pDimRgn->LFO1Frequency,  
                                              start_level_max,  
                                              lfo1_internal_depth,  
                                              pDimRgn->LFO1ControlDepth,  
                                              pDimRgn->LFO1FlipPhase,  
                                              pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);  
145          }          }
146        }
147    
148        void Voice::ProcessPolyphonicKeyPressureEvent(RTList<Event>::Iterator& itEvent) {
149            // Not used so far
150        }
151    
152          // setup LFO 2 (VCF Cutoff LFO)      void Voice::ProcessCutoffEvent(RTList<Event>::Iterator& itEvent) {
153          {          int ccvalue = itEvent->Param.CC.Value;
154              uint16_t lfo2_internal_depth;          if (VCFCutoffCtrl.value == ccvalue) return;
155              switch (pDimRgn->LFO2Controller) {          VCFCutoffCtrl.value = ccvalue;
156                  case ::gig::lfo2_ctrl_internal:          if (pRegion->VCFCutoffControllerInvert)  ccvalue = 127 - ccvalue;
157                      lfo2_internal_depth  = pDimRgn->LFO2InternalDepth;          if (ccvalue < pRegion->VCFVelocityScale) ccvalue = pRegion->VCFVelocityScale;
158                      pLFO2->ExtController = 0; // no external controller          float cutoff = CutoffBase * float(ccvalue);
159                      bLFO2Enabled         = (lfo2_internal_depth > 0);          if (cutoff > 127.0f) cutoff = 127.0f;
                     break;  
                 case ::gig::lfo2_ctrl_modwheel:  
                     lfo2_internal_depth  = 0;  
                     pLFO2->ExtController = 1; // MIDI controller 1  
                     bLFO2Enabled         = (pDimRgn->LFO2ControlDepth > 0);  
                     break;  
                 case ::gig::lfo2_ctrl_foot:  
                     lfo2_internal_depth  = 0;  
                     pLFO2->ExtController = 4; // MIDI controller 4  
                     bLFO2Enabled         = (pDimRgn->LFO2ControlDepth > 0);  
                     break;  
                 case ::gig::lfo2_ctrl_internal_modwheel:  
                     lfo2_internal_depth  = pDimRgn->LFO2InternalDepth;  
                     pLFO2->ExtController = 1; // MIDI controller 1  
                     bLFO2Enabled         = (lfo2_internal_depth > 0 || pDimRgn->LFO2ControlDepth > 0);  
                     break;  
                 case ::gig::lfo2_ctrl_internal_foot:  
                     lfo2_internal_depth  = pDimRgn->LFO2InternalDepth;  
                     pLFO2->ExtController = 4; // MIDI controller 4  
                     bLFO2Enabled         = (lfo2_internal_depth > 0 || pDimRgn->LFO2ControlDepth > 0);  
                     break;  
                 default:  
                     lfo2_internal_depth  = 0;  
                     pLFO2->ExtController = 0; // no external controller  
                     bLFO2Enabled         = false;  
             }  
             if (bLFO2Enabled) pLFO2->trigger(pDimRgn->LFO2Frequency,  
                                              start_level_max,  
                                              lfo2_internal_depth,  
                                              pDimRgn->LFO2ControlDepth,  
                                              pDimRgn->LFO2FlipPhase,  
                                              pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);  
         }  
160    
161            VCFCutoffCtrl.fvalue = cutoff; // needed for initialization of fFinalCutoff next time
162            fFinalCutoff = cutoff;
163        }
164    
165          // setup LFO 3 (VCO LFO)      double Voice::CalculateCrossfadeVolume(uint8_t MIDIKeyVelocity) {
166          {          float crossfadeVolume;
167              uint16_t lfo3_internal_depth;          switch (pRegion->AttenuationController.type) {
168              switch (pDimRgn->LFO3Controller) {              case ::gig::attenuation_ctrl_t::type_channelaftertouch:
169                  case ::gig::lfo3_ctrl_internal:                  crossfadeVolume = Engine::CrossfadeCurve[CrossfadeAttenuation(GetGigEngineChannel()->ControllerTable[128])];
170                      lfo3_internal_depth  = pDimRgn->LFO3InternalDepth;                  break;
171                      pLFO3->ExtController = 0; // no external controller              case ::gig::attenuation_ctrl_t::type_velocity:
172                      bLFO3Enabled         = (lfo3_internal_depth > 0);                  crossfadeVolume = Engine::CrossfadeCurve[CrossfadeAttenuation(MIDIKeyVelocity)];
173                      break;                  break;
174                  case ::gig::lfo3_ctrl_modwheel:              case ::gig::attenuation_ctrl_t::type_controlchange: //FIXME: currently not sample accurate
175                      lfo3_internal_depth  = 0;                  crossfadeVolume = Engine::CrossfadeCurve[CrossfadeAttenuation(GetGigEngineChannel()->ControllerTable[pRegion->AttenuationController.controller_number])];
176                      pLFO3->ExtController = 1; // MIDI controller 1                  break;
177                      bLFO3Enabled         = (pDimRgn->LFO3ControlDepth > 0);              case ::gig::attenuation_ctrl_t::type_none: // no crossfade defined
178                      break;              default:
179                  case ::gig::lfo3_ctrl_aftertouch:                  crossfadeVolume = 1.0f;
                     lfo3_internal_depth  = 0;  
                     pLFO3->ExtController = 0; // TODO: aftertouch not implemented yet  
                     bLFO3Enabled         = false; // see TODO comment in line above  
                     break;  
                 case ::gig::lfo3_ctrl_internal_modwheel:  
                     lfo3_internal_depth  = pDimRgn->LFO3InternalDepth;  
                     pLFO3->ExtController = 1; // MIDI controller 1  
                     bLFO3Enabled         = (lfo3_internal_depth > 0 || pDimRgn->LFO3ControlDepth > 0);  
                     break;  
                 case ::gig::lfo3_ctrl_internal_aftertouch:  
                     lfo3_internal_depth  = pDimRgn->LFO3InternalDepth;  
                     pLFO1->ExtController = 0; // TODO: aftertouch not implemented yet  
                     bLFO3Enabled         = (lfo3_internal_depth > 0 /*|| pDimRgn->LFO3ControlDepth > 0*/); // see TODO comment in line above  
                     break;  
                 default:  
                     lfo3_internal_depth  = 0;  
                     pLFO3->ExtController = 0; // no external controller  
                     bLFO3Enabled         = false;  
             }  
             if (bLFO3Enabled) pLFO3->trigger(pDimRgn->LFO3Frequency,  
                                              start_level_mid,  
                                              lfo3_internal_depth,  
                                              pDimRgn->LFO3ControlDepth,  
                                              false,  
                                              pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);  
180          }          }
181    
182            return crossfadeVolume;
183        }
184    
185          #if CONFIG_FORCE_FILTER      double Voice::GetEG1ControllerValue(uint8_t MIDIKeyVelocity) {
186          const bool bUseFilter = true;          double eg1controllervalue = 0;
187          #else // use filter only if instrument file told so          switch (pRegion->EG1Controller.type) {
188          const bool bUseFilter = pDimRgn->VCFEnabled;              case ::gig::eg1_ctrl_t::type_none: // no controller defined
189          #endif // CONFIG_FORCE_FILTER                  eg1controllervalue = 0;
190          SYNTHESIS_MODE_SET_FILTER(SynthesisMode, bUseFilter);                  break;
191          if (bUseFilter) {              case ::gig::eg1_ctrl_t::type_channelaftertouch:
192              #ifdef CONFIG_OVERRIDE_CUTOFF_CTRL                  eg1controllervalue = GetGigEngineChannel()->ControllerTable[128];
193              VCFCutoffCtrl.controller = CONFIG_OVERRIDE_CUTOFF_CTRL;                  break;
194              #else // use the one defined in the instrument file              case ::gig::eg1_ctrl_t::type_velocity:
195              switch (pDimRgn->VCFCutoffController) {                  eg1controllervalue = MIDIKeyVelocity;
196                  case ::gig::vcf_cutoff_ctrl_modwheel:                  break;
197                      VCFCutoffCtrl.controller = 1;              case ::gig::eg1_ctrl_t::type_controlchange: // MIDI control change controller
198                      break;                  eg1controllervalue = GetGigEngineChannel()->ControllerTable[pRegion->EG1Controller.controller_number];
199                  case ::gig::vcf_cutoff_ctrl_effect1:                  break;
200                      VCFCutoffCtrl.controller = 12;          }
201                      break;          if (pRegion->EG1ControllerInvert) eg1controllervalue = 127 - eg1controllervalue;
                 case ::gig::vcf_cutoff_ctrl_effect2:  
                     VCFCutoffCtrl.controller = 13;  
                     break;  
                 case ::gig::vcf_cutoff_ctrl_breath:  
                     VCFCutoffCtrl.controller = 2;  
                     break;  
                 case ::gig::vcf_cutoff_ctrl_foot:  
                     VCFCutoffCtrl.controller = 4;  
                     break;  
                 case ::gig::vcf_cutoff_ctrl_sustainpedal:  
                     VCFCutoffCtrl.controller = 64;  
                     break;  
                 case ::gig::vcf_cutoff_ctrl_softpedal:  
                     VCFCutoffCtrl.controller = 67;  
                     break;  
                 case ::gig::vcf_cutoff_ctrl_genpurpose7:  
                     VCFCutoffCtrl.controller = 82;  
                     break;  
                 case ::gig::vcf_cutoff_ctrl_genpurpose8:  
                     VCFCutoffCtrl.controller = 83;  
                     break;  
                 case ::gig::vcf_cutoff_ctrl_aftertouch: //TODO: not implemented yet  
                 case ::gig::vcf_cutoff_ctrl_none:  
                 default:  
                     VCFCutoffCtrl.controller = 0;  
                     break;  
             }  
             #endif // CONFIG_OVERRIDE_CUTOFF_CTRL  
   
             #ifdef CONFIG_OVERRIDE_RESONANCE_CTRL  
             VCFResonanceCtrl.controller = CONFIG_OVERRIDE_RESONANCE_CTRL;  
             #else // use the one defined in the instrument file  
             switch (pDimRgn->VCFResonanceController) {  
                 case ::gig::vcf_res_ctrl_genpurpose3:  
                     VCFResonanceCtrl.controller = 18;  
                     break;  
                 case ::gig::vcf_res_ctrl_genpurpose4:  
                     VCFResonanceCtrl.controller = 19;  
                     break;  
                 case ::gig::vcf_res_ctrl_genpurpose5:  
                     VCFResonanceCtrl.controller = 80;  
                     break;  
                 case ::gig::vcf_res_ctrl_genpurpose6:  
                     VCFResonanceCtrl.controller = 81;  
                     break;  
                 case ::gig::vcf_res_ctrl_none:  
                 default:  
                     VCFResonanceCtrl.controller = 0;  
             }  
             #endif // CONFIG_OVERRIDE_RESONANCE_CTRL  
202    
203              #ifndef CONFIG_OVERRIDE_FILTER_TYPE          return eg1controllervalue;
204              finalSynthesisParameters.filterLeft.SetType(pDimRgn->VCFType);      }
             finalSynthesisParameters.filterRight.SetType(pDimRgn->VCFType);  
             #else // override filter type  
             FilterLeft.SetType(CONFIG_OVERRIDE_FILTER_TYPE);  
             FilterRight.SetType(CONFIG_OVERRIDE_FILTER_TYPE);  
             #endif // CONFIG_OVERRIDE_FILTER_TYPE  
   
             VCFCutoffCtrl.value    = pEngineChannel->ControllerTable[VCFCutoffCtrl.controller];  
             VCFResonanceCtrl.value = pEngineChannel->ControllerTable[VCFResonanceCtrl.controller];  
   
             // calculate cutoff frequency  
             float cutoff = pDimRgn->GetVelocityCutoff(itNoteOnEvent->Param.Note.Velocity);  
             if (pDimRgn->VCFKeyboardTracking) {  
                 cutoff *= exp((itNoteOnEvent->Param.Note.Key - pDimRgn->VCFKeyboardTrackingBreakpoint) * 0.057762265f); // (ln(2) / 12)  
             }  
             CutoffBase = cutoff;  
205    
206              int cvalue;      Voice::EGInfo Voice::CalculateEG1ControllerInfluence(double eg1ControllerValue) {
207              if (VCFCutoffCtrl.controller) {          EGInfo eg;
208                  cvalue = pEngineChannel->ControllerTable[VCFCutoffCtrl.controller];          // (eg1attack is different from the others)
209                  if (pDimRgn->VCFCutoffControllerInvert) cvalue = 127 - cvalue;          if (pRegion->EG1Attack < 1e-8 && // attack in gig == 0
210                  // VCFVelocityScale in this case means Minimum cutoff              (pRegion->EG1ControllerAttackInfluence == 0 ||
211                  if (cvalue < pDimRgn->VCFVelocityScale) cvalue = pDimRgn->VCFVelocityScale;               eg1ControllerValue <= 10)) { // strange GSt special case
212              }              eg.Attack = 0; // this will force the attack to be 0 in the call to EG1.trigger
213              else {          } else {
214                  cvalue = pDimRgn->VCFCutoff;              eg.Attack  = (pRegion->EG1ControllerAttackInfluence)  ?
215              }                  1 + 0.031 * (double) (pRegion->EG1ControllerAttackInfluence == 1 ?
216              cutoff *= float(cvalue) * 0.00787402f; // (1 / 127)                                        1 : 1 << pRegion->EG1ControllerAttackInfluence) * eg1ControllerValue : 1.0;
217              if (cutoff > 1.0) cutoff = 1.0;          }
218              cutoff = (cutoff < 0.5 ? cutoff * 4826 - 1 : cutoff * 5715 - 449);          eg.Decay   = (pRegion->EG1ControllerDecayInfluence)   ? 1 + 0.00775 * (double) (1 << pRegion->EG1ControllerDecayInfluence)   * eg1ControllerValue : 1.0;
219              if (cutoff < 1.0) cutoff = 1.0;          eg.Release = (pRegion->EG1ControllerReleaseInfluence) ? 1 + 0.00775 * (double) (1 << pRegion->EG1ControllerReleaseInfluence) * eg1ControllerValue : 1.0;
220    
221            return eg;
222        }
223    
224        double Voice::GetEG2ControllerValue(uint8_t MIDIKeyVelocity) {
225            double eg2controllervalue = 0;
226            switch (pRegion->EG2Controller.type) {
227                case ::gig::eg2_ctrl_t::type_none: // no controller defined
228                    eg2controllervalue = 0;
229                    break;
230                case ::gig::eg2_ctrl_t::type_channelaftertouch:
231                    eg2controllervalue = GetGigEngineChannel()->ControllerTable[128];
232                    break;
233                case ::gig::eg2_ctrl_t::type_velocity:
234                    eg2controllervalue = MIDIKeyVelocity;
235                    break;
236                case ::gig::eg2_ctrl_t::type_controlchange: // MIDI control change controller
237                    eg2controllervalue = GetGigEngineChannel()->ControllerTable[pRegion->EG2Controller.controller_number];
238                    break;
239            }
240            if (pRegion->EG2ControllerInvert) eg2controllervalue = 127 - eg2controllervalue;
241    
242              // calculate resonance          return eg2controllervalue;
243              float resonance = (float) (VCFResonanceCtrl.controller ? VCFResonanceCtrl.value : pDimRgn->VCFResonance) * 0.00787f; // 0.0..1.0      }
244    
245              VCFCutoffCtrl.fvalue    = cutoff - 1.0;      Voice::EGInfo Voice::CalculateEG2ControllerInfluence(double eg2ControllerValue) {
246              VCFResonanceCtrl.fvalue = resonance;          EGInfo eg;
247          }          eg.Attack  = (pRegion->EG2ControllerAttackInfluence)  ? 1 + 0.00775 * (double) (1 << pRegion->EG2ControllerAttackInfluence)  * eg2ControllerValue : 1.0;
248          else {          eg.Decay   = (pRegion->EG2ControllerDecayInfluence)   ? 1 + 0.00775 * (double) (1 << pRegion->EG2ControllerDecayInfluence)   * eg2ControllerValue : 1.0;
249              VCFCutoffCtrl.controller    = 0;          eg.Release = (pRegion->EG2ControllerReleaseInfluence) ? 1 + 0.00775 * (double) (1 << pRegion->EG2ControllerReleaseInfluence) * eg2ControllerValue : 1.0;
             VCFResonanceCtrl.controller = 0;  
         }  
250    
251          return 0; // success          return eg;
252      }      }
253    
254      /**      void Voice::InitLFO1() {
255       *  Renders the audio data for this voice for the current audio fragment.          uint16_t lfo1_internal_depth;
256       *  The sample input data can either come from RAM (cached sample or sample          switch (pRegion->LFO1Controller) {
257       *  part) or directly from disk. The output signal will be rendered by              case ::gig::lfo1_ctrl_internal:
258       *  resampling / interpolation. If this voice is a disk streaming voice and                  lfo1_internal_depth  = pRegion->LFO1InternalDepth;
259       *  the voice completely played back the cached RAM part of the sample, it                  pLFO1->ExtController = 0; // no external controller
260       *  will automatically switch to disk playback for the next RenderAudio()                  bLFO1Enabled         = (lfo1_internal_depth > 0);
261       *  call.                  break;
262       *              case ::gig::lfo1_ctrl_modwheel:
263       *  @param Samples - number of samples to be rendered in this audio fragment cycle                  lfo1_internal_depth  = 0;
264       */                  pLFO1->ExtController = 1; // MIDI controller 1
265      void Voice::Render(uint Samples) {                  bLFO1Enabled         = (pRegion->LFO1ControlDepth > 0);
266                    break;
267          // select default values for synthesis mode bits              case ::gig::lfo1_ctrl_breath:
268          SYNTHESIS_MODE_SET_LOOP(SynthesisMode, false);                  lfo1_internal_depth  = 0;
269                    pLFO1->ExtController = 2; // MIDI controller 2
270          switch (this->PlaybackState) {                  bLFO1Enabled         = (pRegion->LFO1ControlDepth > 0);
271                    break;
272              case playback_state_init:              case ::gig::lfo1_ctrl_internal_modwheel:
273                  this->PlaybackState = playback_state_ram; // we always start playback from RAM cache and switch then to disk if needed                  lfo1_internal_depth  = pRegion->LFO1InternalDepth;
274                  // no break - continue with playback_state_ram                  pLFO1->ExtController = 1; // MIDI controller 1
275                    bLFO1Enabled         = (lfo1_internal_depth > 0 || pRegion->LFO1ControlDepth > 0);
276              case playback_state_ram: {                  break;
277                      if (RAMLoop) SYNTHESIS_MODE_SET_LOOP(SynthesisMode, true); // enable looping              case ::gig::lfo1_ctrl_internal_breath:
278                    lfo1_internal_depth  = pRegion->LFO1InternalDepth;
279                      // render current fragment                  pLFO1->ExtController = 2; // MIDI controller 2
280                      Synthesize(Samples, (sample_t*) pSample->GetCache().pStart, Delay);                  bLFO1Enabled         = (lfo1_internal_depth > 0 || pRegion->LFO1ControlDepth > 0);
281                    break;
282                      if (DiskVoice) {              default:
283                          // check if we reached the allowed limit of the sample RAM cache                  lfo1_internal_depth  = 0;
284                          if (finalSynthesisParameters.dPos > MaxRAMPos) {                  pLFO1->ExtController = 0; // no external controller
285                              dmsg(5,("Voice: switching to disk playback (Pos=%f)\n", finalSynthesisParameters.dPos));                  bLFO1Enabled         = false;
286                              this->PlaybackState = playback_state_disk;          }
287                          }          if (bLFO1Enabled) {
288                      } else if (finalSynthesisParameters.dPos >= pSample->GetCache().Size / pSample->FrameSize) {              pLFO1->trigger(fromGigLfoWave(pRegion->LFO1WaveForm),
289                          this->PlaybackState = playback_state_end;                             pRegion->LFO1Frequency,
290                      }                             pRegion->LFO1Phase,
291                  }                             LFO::start_level_mid, // see https://sourceforge.net/p/linuxsampler/mailman/linuxsampler-devel/thread/2189307.cNP0Xbctxq%40silver/#msg36774029
292                  break;                             lfo1_internal_depth,
293                               pRegion->LFO1ControlDepth,
294              case playback_state_disk: {                             pRegion->LFO1FlipPhase,
295                      if (!DiskStreamRef.pStream) {                             pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
296                          // check if the disk thread created our ordered disk stream in the meantime              pLFO1->updateByMIDICtrlValue(pLFO1->ExtController ? GetGigEngineChannel()->ControllerTable[pLFO1->ExtController] : 0);
297                          DiskStreamRef.pStream = pDiskThread->AskForCreatedStream(DiskStreamRef.OrderID);              pLFO1->setScriptDepthFactor(
298                          if (!DiskStreamRef.pStream) {                  pNote->Override.AmpLFODepth.Value,
299                              std::cout << stderr << "Disk stream not available in time!" << std::endl << std::flush;                  pNote->Override.AmpLFODepth.Final
300                              KillImmediately();              );
301                              return;              if (pNote->Override.AmpLFOFreq.isFinal())
302                          }                  pLFO1->setScriptFrequencyFinal(
303                          DiskStreamRef.pStream->IncrementReadPos(pSample->Channels * (int(finalSynthesisParameters.dPos) - MaxRAMPos));                      pNote->Override.AmpLFOFreq.Value, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE
304                          finalSynthesisParameters.dPos -= int(finalSynthesisParameters.dPos);                  );
305                          RealSampleWordsLeftToRead = -1; // -1 means no silence has been added yet              else
306                      }                  pLFO1->setScriptFrequencyFactor(
307                        pNote->Override.AmpLFOFreq.Value, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE
308                      const int sampleWordsLeftToRead = DiskStreamRef.pStream->GetReadSpace();                  );
   
                     // add silence sample at the end if we reached the end of the stream (for the interpolator)  
                     if (DiskStreamRef.State == Stream::state_end) {  
                         const int maxSampleWordsPerCycle = (pEngine->MaxSamplesPerCycle << CONFIG_MAX_PITCH) * pSample->Channels + 6; // +6 for the interpolator algorithm  
                         if (sampleWordsLeftToRead <= maxSampleWordsPerCycle) {  
                             // remember how many sample words there are before any silence has been added  
                             if (RealSampleWordsLeftToRead < 0) RealSampleWordsLeftToRead = sampleWordsLeftToRead;  
                             DiskStreamRef.pStream->WriteSilence(maxSampleWordsPerCycle - sampleWordsLeftToRead);  
                         }  
                     }  
   
                     sample_t* ptr = DiskStreamRef.pStream->GetReadPtr(); // get the current read_ptr within the ringbuffer where we read the samples from  
   
                     // render current audio fragment  
                     Synthesize(Samples, ptr, Delay);  
   
                     const int iPos = (int) finalSynthesisParameters.dPos;  
                     const int readSampleWords = iPos * pSample->Channels; // amount of sample words actually been read  
                     DiskStreamRef.pStream->IncrementReadPos(readSampleWords);  
                     finalSynthesisParameters.dPos -= iPos; // just keep fractional part of playback position  
   
                     // change state of voice to 'end' if we really reached the end of the sample data  
                     if (RealSampleWordsLeftToRead >= 0) {  
                         RealSampleWordsLeftToRead -= readSampleWords;  
                         if (RealSampleWordsLeftToRead <= 0) this->PlaybackState = playback_state_end;  
                     }  
                 }  
                 break;  
   
             case playback_state_end:  
                 std::cerr << "gig::Voice::Render(): entered with playback_state_end, this is a bug!\n" << std::flush;  
                 break;  
         }  
   
         // Reset delay  
         Delay = 0;  
   
         itTriggerEvent = Pool<Event>::Iterator();  
   
         // If sample stream or release stage finished, kill the voice  
         if (PlaybackState == playback_state_end || EG1.getSegmentType() == EGADSR::segment_end) KillImmediately();  
     }  
   
     /**  
      *  Resets voice variables. Should only be called if rendering process is  
      *  suspended / not running.  
      */  
     void Voice::Reset() {  
         finalSynthesisParameters.filterLeft.Reset();  
         finalSynthesisParameters.filterRight.Reset();  
         DiskStreamRef.pStream = NULL;  
         DiskStreamRef.hStream = 0;  
         DiskStreamRef.State   = Stream::state_unused;  
         DiskStreamRef.OrderID = 0;  
         PlaybackState = playback_state_end;  
         itTriggerEvent = Pool<Event>::Iterator();  
         itKillEvent    = Pool<Event>::Iterator();  
     }  
   
     /**  
      * Process given list of MIDI note on, note off and sustain pedal events  
      * for the given time.  
      *  
      * @param itEvent - iterator pointing to the next event to be processed  
      * @param End     - youngest time stamp where processing should be stopped  
      */  
     void Voice::processTransitionEvents(RTList<Event>::Iterator& itEvent, uint End) {  
         for (; itEvent && itEvent->FragmentPos() <= End; ++itEvent) {  
             if (itEvent->Type == Event::type_release) {  
                 EG1.update(EGADSR::event_release, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);  
                 EG2.update(EGADSR::event_release, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);  
             } else if (itEvent->Type == Event::type_cancel_release) {  
                 EG1.update(EGADSR::event_cancel_release, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);  
                 EG2.update(EGADSR::event_cancel_release, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);  
             }  
309          }          }
310      }      }
311    
312      /**      void Voice::InitLFO2() {
313       * Process given list of MIDI control change and pitch bend events for          uint16_t lfo2_internal_depth;
314       * the given time.          switch (pRegion->LFO2Controller) {
315       *              case ::gig::lfo2_ctrl_internal:
316       * @param itEvent - iterator pointing to the next event to be processed                  lfo2_internal_depth  = pRegion->LFO2InternalDepth;
317       * @param End     - youngest time stamp where processing should be stopped                  pLFO2->ExtController = 0; // no external controller
318       */                  bLFO2Enabled         = (lfo2_internal_depth > 0);
319      void Voice::processCCEvents(RTList<Event>::Iterator& itEvent, uint End) {                  break;
320          for (; itEvent && itEvent->FragmentPos() <= End; ++itEvent) {              case ::gig::lfo2_ctrl_modwheel:
321              if (itEvent->Type == Event::type_control_change &&                  lfo2_internal_depth  = 0;
322                  itEvent->Param.CC.Controller) { // if (valid) MIDI control change event                  pLFO2->ExtController = 1; // MIDI controller 1
323                  if (itEvent->Param.CC.Controller == VCFCutoffCtrl.controller) {                  bLFO2Enabled         = (pRegion->LFO2ControlDepth > 0);
324                      processCutoffEvent(itEvent);                  break;
325                  }              case ::gig::lfo2_ctrl_foot:
326                  if (itEvent->Param.CC.Controller == VCFResonanceCtrl.controller) {                  lfo2_internal_depth  = 0;
327                      processResonanceEvent(itEvent);                  pLFO2->ExtController = 4; // MIDI controller 4
328                  }                  bLFO2Enabled         = (pRegion->LFO2ControlDepth > 0);
329                  if (itEvent->Param.CC.Controller == pLFO1->ExtController) {                  break;
330                      pLFO1->update(itEvent->Param.CC.Value);              case ::gig::lfo2_ctrl_internal_modwheel:
331                  }                  lfo2_internal_depth  = pRegion->LFO2InternalDepth;
332                  if (itEvent->Param.CC.Controller == pLFO2->ExtController) {                  pLFO2->ExtController = 1; // MIDI controller 1
333                      pLFO2->update(itEvent->Param.CC.Value);                  bLFO2Enabled         = (lfo2_internal_depth > 0 || pRegion->LFO2ControlDepth > 0);
334                  }                  break;
335                  if (itEvent->Param.CC.Controller == pLFO3->ExtController) {              case ::gig::lfo2_ctrl_internal_foot:
336                      pLFO3->update(itEvent->Param.CC.Value);                  lfo2_internal_depth  = pRegion->LFO2InternalDepth;
337                  }                  pLFO2->ExtController = 4; // MIDI controller 4
338                  if (pDimRgn->AttenuationController.type == ::gig::attenuation_ctrl_t::type_controlchange &&                  bLFO2Enabled         = (lfo2_internal_depth > 0 || pRegion->LFO2ControlDepth > 0);
339                      itEvent->Param.CC.Controller == pDimRgn->AttenuationController.controller_number) {                  break;
340                      processCrossFadeEvent(itEvent);              default:
341                  }                  lfo2_internal_depth  = 0;
342              } else if (itEvent->Type == Event::type_pitchbend) { // if pitch bend event                  pLFO2->ExtController = 0; // no external controller
343                  processPitchEvent(itEvent);                  bLFO2Enabled         = false;
344              }          }
345            if (bLFO2Enabled) {
346                pLFO2->trigger(fromGigLfoWave(pRegion->LFO2WaveForm),
347                               pRegion->LFO2Frequency,
348                               pRegion->LFO2Phase,
349                               LFO::start_level_mid, // see https://sourceforge.net/p/linuxsampler/mailman/linuxsampler-devel/thread/2189307.cNP0Xbctxq%40silver/#msg36774029
350                               lfo2_internal_depth,
351                               pRegion->LFO2ControlDepth,
352                               pRegion->LFO2FlipPhase,
353                               pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
354                pLFO2->updateByMIDICtrlValue(pLFO2->ExtController ? GetGigEngineChannel()->ControllerTable[pLFO2->ExtController] : 0);
355                pLFO2->setScriptDepthFactor(
356                    pNote->Override.CutoffLFODepth.Value,
357                    pNote->Override.CutoffLFODepth.Final
358                );
359                if (pNote->Override.CutoffLFOFreq.isFinal())
360                    pLFO2->setScriptFrequencyFinal(pNote->Override.CutoffLFOFreq.Value, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
361                else
362                    pLFO2->setScriptFrequencyFactor(pNote->Override.CutoffLFOFreq.Value, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
363          }          }
364      }      }
365    
366      void Voice::processPitchEvent(RTList<Event>::Iterator& itEvent) {      void Voice::InitLFO3() {
367          const float pitch = RTMath::CentsToFreqRatio(((double) itEvent->Param.Pitch.Pitch / 8192.0) * 200.0); // +-two semitones = +-200 cents          uint16_t lfo3_internal_depth;
368          finalSynthesisParameters.fFinalPitch *= pitch;          switch (pRegion->LFO3Controller) {
369          PitchBend = pitch;              case ::gig::lfo3_ctrl_internal:
370      }                  lfo3_internal_depth  = pRegion->LFO3InternalDepth;
371                    pLFO3->ExtController = 0; // no external controller
372      void Voice::processCrossFadeEvent(RTList<Event>::Iterator& itEvent) {                  bLFO3Enabled         = (lfo3_internal_depth > 0);
373          CrossfadeVolume = CrossfadeAttenuation(itEvent->Param.CC.Value);                  break;
374          #if CONFIG_PROCESS_MUTED_CHANNELS              case ::gig::lfo3_ctrl_modwheel:
375          const float effectiveVolume = CrossfadeVolume * Volume * (pEngineChannel->GetMute() ? 0 : pEngineChannel->GlobalVolume);                  lfo3_internal_depth  = 0;
376          #else                  pLFO3->ExtController = 1; // MIDI controller 1
377          const float effectiveVolume = CrossfadeVolume * Volume * pEngineChannel->GlobalVolume;                  bLFO3Enabled         = (pRegion->LFO3ControlDepth > 0);
378          #endif                  break;
379          fFinalVolume = effectiveVolume;              case ::gig::lfo3_ctrl_aftertouch:
380                    lfo3_internal_depth  = 0;
381                    pLFO3->ExtController = CTRL_TABLE_IDX_AFTERTOUCH;
382                    bLFO3Enabled         = true;
383                    break;
384                case ::gig::lfo3_ctrl_internal_modwheel:
385                    lfo3_internal_depth  = pRegion->LFO3InternalDepth;
386                    pLFO3->ExtController = 1; // MIDI controller 1
387                    bLFO3Enabled         = (lfo3_internal_depth > 0 || pRegion->LFO3ControlDepth > 0);
388                    break;
389                case ::gig::lfo3_ctrl_internal_aftertouch:
390                    lfo3_internal_depth  = pRegion->LFO3InternalDepth;
391                    pLFO3->ExtController = CTRL_TABLE_IDX_AFTERTOUCH;
392                    bLFO3Enabled         = (lfo3_internal_depth > 0 || pRegion->LFO3ControlDepth > 0);
393                    break;
394                default:
395                    lfo3_internal_depth  = 0;
396                    pLFO3->ExtController = 0; // no external controller
397                    bLFO3Enabled         = false;
398            }
399            if (bLFO3Enabled) {
400                pLFO3->trigger(fromGigLfoWave(pRegion->LFO3WaveForm),
401                               pRegion->LFO3Frequency,
402                               pRegion->LFO3Phase,
403                               LFO::start_level_max, // see https://sourceforge.net/p/linuxsampler/mailman/linuxsampler-devel/thread/2189307.cNP0Xbctxq%40silver/#msg36774029
404                               lfo3_internal_depth,
405                               pRegion->LFO3ControlDepth,
406                               pRegion->LFO3FlipPhase,
407                               pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
408                pLFO3->updateByMIDICtrlValue(pLFO3->ExtController ? GetGigEngineChannel()->ControllerTable[pLFO3->ExtController] : 0);
409                pLFO3->setScriptDepthFactor(
410                    pNote->Override.PitchLFODepth.Value,
411                    pNote->Override.PitchLFODepth.Final
412                );
413                if (pNote->Override.PitchLFOFreq.isFinal())
414                    pLFO3->setScriptFrequencyFinal(pNote->Override.PitchLFOFreq.Value, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
415                else
416                    pLFO3->setScriptFrequencyFactor(pNote->Override.PitchLFOFreq.Value, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
417            }
418      }      }
419    
420      void Voice::processCutoffEvent(RTList<Event>::Iterator& itEvent) {      float Voice::CalculateCutoffBase(uint8_t MIDIKeyVelocity) {
421          int ccvalue = itEvent->Param.CC.Value;          float cutoff = pRegion->GetVelocityCutoff(MIDIKeyVelocity);
422          if (VCFCutoffCtrl.value == ccvalue) return;          if (pRegion->VCFKeyboardTracking) {
423          VCFCutoffCtrl.value == ccvalue;              cutoff *= RTMath::CentsToFreqRatioUnlimited((MIDIKey() - pRegion->VCFKeyboardTrackingBreakpoint) * 100);
424          if (pDimRgn->VCFCutoffControllerInvert)  ccvalue = 127 - ccvalue;          }
425          if (ccvalue < pDimRgn->VCFVelocityScale) ccvalue = pDimRgn->VCFVelocityScale;          return cutoff;
426          float cutoff = CutoffBase * float(ccvalue) * 0.00787402f; // (1 / 127)      }
427          if (cutoff > 1.0) cutoff = 1.0;  
428          cutoff = (cutoff < 0.5 ? cutoff * 4826 - 1 : cutoff * 5715 - 449);      float Voice::CalculateFinalCutoff(float cutoffBase) {
429          if (cutoff < 1.0) cutoff = 1.0;          int cvalue;
430            if (VCFCutoffCtrl.controller) {
431                cvalue = GetGigEngineChannel()->ControllerTable[VCFCutoffCtrl.controller];
432                if (pRegion->VCFCutoffControllerInvert) cvalue = 127 - cvalue;
433                // VCFVelocityScale in this case means Minimum cutoff
434                if (cvalue < pRegion->VCFVelocityScale) cvalue = pRegion->VCFVelocityScale;
435            }
436            else {
437                cvalue = pRegion->VCFCutoff;
438            }
439            float fco = cutoffBase * float(cvalue);
440            if (fco > 127.0f) fco = 127.0f;
441    
442          VCFCutoffCtrl.fvalue = cutoff - 1.0; // needed for initialization of fFinalCutoff next time          return fco;
         fFinalCutoff = cutoff;  
443      }      }
444    
445      void Voice::processResonanceEvent(RTList<Event>::Iterator& itEvent) {      uint8_t Voice::GetVCFCutoffCtrl() {
446          // convert absolute controller value to differential          uint8_t ctrl;
447          const int ctrldelta = itEvent->Param.CC.Value - VCFResonanceCtrl.value;          switch (pRegion->VCFCutoffController) {
448          VCFResonanceCtrl.value = itEvent->Param.CC.Value;              case ::gig::vcf_cutoff_ctrl_modwheel:
449          const float resonancedelta = (float) ctrldelta * 0.00787f; // 0.0..1.0                  ctrl = 1;
450          fFinalResonance += resonancedelta;                  break;
451          // needed for initialization of parameter              case ::gig::vcf_cutoff_ctrl_effect1:
452          VCFResonanceCtrl.fvalue = itEvent->Param.CC.Value * 0.00787f;                  ctrl = 12;
453      }                  break;
454                case ::gig::vcf_cutoff_ctrl_effect2:
455      /**                  ctrl = 13;
456       *  Synthesizes the current audio fragment for this voice.                  break;
457       *              case ::gig::vcf_cutoff_ctrl_breath:
458       *  @param Samples - number of sample points to be rendered in this audio                  ctrl = 2;
459       *                   fragment cycle                  break;
460       *  @param pSrc    - pointer to input sample data              case ::gig::vcf_cutoff_ctrl_foot:
461       *  @param Skip    - number of sample points to skip in output buffer                  ctrl = 4;
462       */                  break;
463      void Voice::Synthesize(uint Samples, sample_t* pSrc, uint Skip) {              case ::gig::vcf_cutoff_ctrl_sustainpedal:
464          finalSynthesisParameters.pOutLeft  = &pEngineChannel->pOutputLeft[Skip];                  ctrl = 64;
465          finalSynthesisParameters.pOutRight = &pEngineChannel->pOutputRight[Skip];                  break;
466          finalSynthesisParameters.pSrc      = pSrc;              case ::gig::vcf_cutoff_ctrl_softpedal:
467                    ctrl = 67;
468          RTList<Event>::Iterator itCCEvent = pEngineChannel->pEvents->first();                  break;
469          RTList<Event>::Iterator itNoteEvent = pEngineChannel->pMIDIKeyInfo[MIDIKey].pEvents->first();              case ::gig::vcf_cutoff_ctrl_genpurpose7:
470                    ctrl = 82;
471          if (Skip) { // skip events that happened before this voice was triggered                  break;
472              while (itCCEvent && itCCEvent->FragmentPos() <= Skip) ++itCCEvent;              case ::gig::vcf_cutoff_ctrl_genpurpose8:
473              while (itNoteEvent && itNoteEvent->FragmentPos() <= Skip) ++itNoteEvent;                  ctrl = 83;
474          }                  break;
475                case ::gig::vcf_cutoff_ctrl_aftertouch:
476          uint i = Skip;                  ctrl = CTRL_TABLE_IDX_AFTERTOUCH;
477          while (i < Samples) {                  break;
478              int iSubFragmentEnd = RTMath::Min(i + CONFIG_DEFAULT_SUBFRAGMENT_SIZE, Samples);              case ::gig::vcf_cutoff_ctrl_none:
479                default:
480              // initialize all final synthesis parameters                  ctrl = 0;
481              finalSynthesisParameters.fFinalPitch = PitchBase * PitchBend;                  break;
482              #if CONFIG_PROCESS_MUTED_CHANNELS          }
             fFinalVolume = this->Volume * this->CrossfadeVolume * (pEngineChannel->GetMute() ? 0 : pEngineChannel->GlobalVolume);  
             #else  
             fFinalVolume = this->Volume * this->CrossfadeVolume * pEngineChannel->GlobalVolume;  
             #endif  
             fFinalCutoff    = VCFCutoffCtrl.fvalue;  
             fFinalResonance = VCFResonanceCtrl.fvalue;  
   
             // process MIDI control change and pitchbend events for this subfragment  
             processCCEvents(itCCEvent, iSubFragmentEnd);  
   
             // process transition events (note on, note off & sustain pedal)  
             processTransitionEvents(itNoteEvent, iSubFragmentEnd);  
   
             // process envelope generators  
             switch (EG1.getSegmentType()) {  
                 case EGADSR::segment_lin:  
                     fFinalVolume *= EG1.processLin();  
                     break;  
                 case EGADSR::segment_exp:  
                     fFinalVolume *= EG1.processExp();  
                     break;  
                 case EGADSR::segment_end:  
                     fFinalVolume *= EG1.getLevel();  
                     break; // noop  
             }  
             switch (EG2.getSegmentType()) {  
                 case EGADSR::segment_lin:  
                     fFinalCutoff *= EG2.processLin();  
                     break;  
                 case EGADSR::segment_exp:  
                     fFinalCutoff *= EG2.processExp();  
                     break;  
                 case EGADSR::segment_end:  
                     fFinalCutoff *= EG2.getLevel();  
                     break; // noop  
             }  
             if (EG3.active()) finalSynthesisParameters.fFinalPitch *= RTMath::CentsToFreqRatio(EG3.render());  
   
             // process low frequency oscillators  
             if (bLFO1Enabled) fFinalVolume *= pLFO1->render();  
             if (bLFO2Enabled) fFinalCutoff *= pLFO2->render();  
             if (bLFO3Enabled) finalSynthesisParameters.fFinalPitch *= RTMath::CentsToFreqRatio(pLFO3->render());  
   
             // if filter enabled then update filter coefficients  
             if (SYNTHESIS_MODE_GET_FILTER(SynthesisMode)) {  
                 finalSynthesisParameters.filterLeft.SetParameters(fFinalCutoff + 1.0, fFinalResonance, pEngine->SampleRate);  
                 finalSynthesisParameters.filterRight.SetParameters(fFinalCutoff + 1.0, fFinalResonance, pEngine->SampleRate);  
             }  
   
             // do we need resampling?  
             const float __PLUS_ONE_CENT  = 1.000577789506554859250142541782224725466f;  
             const float __MINUS_ONE_CENT = 0.9994225441413807496009516495583113737666f;  
             const bool bResamplingRequired = !(finalSynthesisParameters.fFinalPitch <= __PLUS_ONE_CENT &&  
                                                finalSynthesisParameters.fFinalPitch >= __MINUS_ONE_CENT);  
             SYNTHESIS_MODE_SET_INTERPOLATE(SynthesisMode, bResamplingRequired);  
   
             // prepare final synthesis parameters structure  
             finalSynthesisParameters.fFinalVolumeLeft  = fFinalVolume * PanLeft;  
             finalSynthesisParameters.fFinalVolumeRight = fFinalVolume * PanRight;  
             finalSynthesisParameters.uiToGo            = iSubFragmentEnd - i;  
   
             // render audio for one subfragment  
             RunSynthesisFunction(SynthesisMode, &finalSynthesisParameters, &loop);  
   
             const double newPos = Pos + (iSubFragmentEnd - i) * finalSynthesisParameters.fFinalPitch;  
   
             // increment envelopes' positions  
             if (EG1.active()) {  
   
                 // 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  
                 if (pSample->Loops && Pos <= pSample->LoopStart && pSample->LoopStart < newPos) {  
                     EG1.update(EGADSR::event_hold_end, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);  
                 }  
483    
484                  EG1.increment(1);          return ctrl;
485                  if (!EG1.toStageEndLeft()) EG1.update(EGADSR::event_stage_end, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);      }
             }  
             if (EG2.active()) {  
                 EG2.increment(1);  
                 if (!EG2.toStageEndLeft()) EG2.update(EGADSR::event_stage_end, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);  
             }  
             EG3.increment(1);  
             if (!EG3.toEndLeft()) EG3.update(); // neutralize envelope coefficient if end reached  
486    
487              Pos = newPos;      uint8_t Voice::GetVCFResonanceCtrl() {
488              i = iSubFragmentEnd;          uint8_t ctrl;
489            switch (pRegion->VCFResonanceController) {
490                case ::gig::vcf_res_ctrl_genpurpose3:
491                    ctrl = 18;
492                    break;
493                case ::gig::vcf_res_ctrl_genpurpose4:
494                    ctrl = 19;
495                    break;
496                case ::gig::vcf_res_ctrl_genpurpose5:
497                    ctrl = 80;
498                    break;
499                case ::gig::vcf_res_ctrl_genpurpose6:
500                    ctrl = 81;
501                    break;
502                case ::gig::vcf_res_ctrl_none:
503                default:
504                    ctrl = 0;
505          }          }
     }  
506    
507      /**          return ctrl;
508       *  Immediately kill the voice. This method should not be used to kill      }
      *  a normal, active voice, because it doesn't take care of things like  
      *  fading down the volume level to avoid clicks and regular processing  
      *  until the kill event actually occured!  
      *  
      *  @see Kill()  
      */  
     void Voice::KillImmediately() {  
         if (DiskVoice && DiskStreamRef.State != Stream::state_unused) {  
             pDiskThread->OrderDeletionOfStream(&DiskStreamRef);  
         }  
         Reset();  
     }  
   
     /**  
      *  Kill the voice in regular sense. Let the voice render audio until  
      *  the kill event actually occured and then fade down the volume level  
      *  very quickly and let the voice die finally. Unlike a normal release  
      *  of a voice, a kill process cannot be cancalled and is therefore  
      *  usually used for voice stealing and key group conflicts.  
      *  
      *  @param itKillEvent - event which caused the voice to be killed  
      */  
     void Voice::Kill(Pool<Event>::Iterator& itKillEvent) {  
         #if CONFIG_DEVMODE  
         if (!itKillEvent) dmsg(1,("gig::Voice::Kill(): ERROR, !itKillEvent !!!\n"));  
         if (itKillEvent && !itKillEvent.isValid()) dmsg(1,("gig::Voice::Kill(): ERROR, itKillEvent invalid !!!\n"));  
         #endif // CONFIG_DEVMODE  
509    
510          if (itTriggerEvent && itKillEvent->FragmentPos() <= itTriggerEvent->FragmentPos()) return;      void Voice::TriggerEG1(const EGInfo& egInfo, double velrelease, double velocityAttenuation, uint sampleRate, uint8_t velocity) {
511          this->itKillEvent = itKillEvent;          EG1.setStateOptions(
512                pRegion->EG1Options.AttackCancel,
513                pRegion->EG1Options.AttackHoldCancel,
514                pRegion->EG1Options.Decay1Cancel,
515                pRegion->EG1Options.Decay2Cancel,
516                pRegion->EG1Options.ReleaseCancel
517            );
518            EG1.trigger(pRegion->EG1PreAttack,
519                        (pNote && pNote->Override.Attack.isFinal()) ?
520                            pNote->Override.Attack.Value :
521                            RTMath::Max(pRegion->EG1Attack, 0.0316) * egInfo.Attack,
522                        pRegion->EG1Hold,
523                        (pNote && pNote->Override.Decay.isFinal()) ?
524                            pNote->Override.Decay.Value :
525                            pRegion->EG1Decay1 * egInfo.Decay * velrelease,
526                        (pNote && pNote->Override.Decay.isFinal()) ?
527                            pNote->Override.Decay.Value :
528                            pRegion->EG1Decay2 * egInfo.Decay * velrelease,
529                        pRegion->EG1InfiniteSustain,
530                        (pNote && pNote->Override.Sustain.Final) ?
531                            uint(pNote->Override.Sustain.Value * 1000.f) :
532                            pRegion->EG1Sustain * (pNote ? pNote->Override.Sustain.Value : 1.f),
533                        (pNote && pNote->Override.Release.isFinal()) ?
534                            pNote->Override.Release.Value :
535                            RTMath::Max(pRegion->EG1Release * velrelease, 0.014) * egInfo.Release,
536                        velocityAttenuation,
537                        sampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
538        }
539    
540        void Voice::TriggerEG2(const EGInfo& egInfo, double velrelease, double velocityAttenuation, uint sampleRate, uint8_t velocity) {
541            EG2.setStateOptions(
542                pRegion->EG2Options.AttackCancel,
543                pRegion->EG2Options.AttackHoldCancel,
544                pRegion->EG2Options.Decay1Cancel,
545                pRegion->EG2Options.Decay2Cancel,
546                pRegion->EG2Options.ReleaseCancel
547            );
548            EG2.trigger(uint(RgnInfo.EG2PreAttack),
549                        (pNote && pNote->Override.CutoffAttack.isFinal()) ?
550                            pNote->Override.CutoffAttack.Value :
551                            RgnInfo.EG2Attack * egInfo.Attack,
552                        false,
553                        (pNote && pNote->Override.CutoffDecay.isFinal()) ?
554                            pNote->Override.CutoffDecay.Value :
555                            RgnInfo.EG2Decay1 * egInfo.Decay * velrelease,
556                        (pNote && pNote->Override.CutoffDecay.isFinal()) ?
557                            pNote->Override.CutoffDecay.Value :
558                            RgnInfo.EG2Decay2 * egInfo.Decay * velrelease,
559                        RgnInfo.EG2InfiniteSustain,
560                        (pNote && pNote->Override.CutoffSustain.Final) ?
561                            uint(pNote->Override.CutoffSustain.Value * 1000.f) :
562                            uint(RgnInfo.EG2Sustain),
563                        (pNote && pNote->Override.CutoffRelease.isFinal()) ?
564                            pNote->Override.CutoffRelease.Value :
565                            RgnInfo.EG2Release * egInfo.Release * velrelease,
566                        velocityAttenuation,
567                        sampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
568        }
569    
570        void Voice::ProcessGroupEvent(RTList<Event>::Iterator& itEvent) {
571            dmsg(4,("Voice %p processGroupEvents event type=%d", (void*)this, itEvent->Type));
572    
573            // TODO: The SustainPedal condition could be wrong, maybe the
574            // check should be if this Voice is in release stage or is a
575            // release sample instead. Need to test this in GSt.
576            // -- Andreas
577            //
578            // Commented sustain pedal check out. I don't think voices of the same
579            // note should be stopped at all, because it doesn't sound naturally
580            // with a drumkit.
581            // -- Christian, 2013-01-08
582            if (itEvent->Param.Note.Key != HostKey() /*||
583                !GetGigEngineChannel()->SustainPedal*/) {
584                dmsg(4,("Voice %p - kill", (void*)this));
585    
586                // kill the voice fast
587                pEG1->enterFadeOutStage();
588            }
589        }
590    
591        void Voice::CalculateFadeOutCoeff(float FadeOutTime, float SampleRate) {
592            EG1.CalculateFadeOutCoeff(FadeOutTime, SampleRate);
593        }
594    
595        int Voice::CalculatePan(uint8_t pan) {
596            int p;
597            // Gst behaviour: -64 and 63 are special cases
598            if (RgnInfo.Pan == -64)     p = pan * 2 - 127;
599            else if (RgnInfo.Pan == 63) p = pan * 2;
600            else                        p = pan + RgnInfo.Pan;
601    
602            if (p < 0) return 0;
603            if (p > 127) return 127;
604            return p;
605        }
606    
607        release_trigger_t Voice::GetReleaseTriggerFlags() {
608            release_trigger_t flags =
609                (pRegion->NoNoteOffReleaseTrigger) ?
610                    release_trigger_none : release_trigger_noteoff; //HACK: currently this method is actually only called by EngineBase if it already knows that this voice requires release trigger, so I took the short way instead of checking (again) the existence of a ::gig::dimension_releasetrigger
611            switch (pRegion->SustainReleaseTrigger) {
612                case ::gig::sust_rel_trg_none:
613                    break;
614                case ::gig::sust_rel_trg_maxvelocity:
615                    flags |= release_trigger_sustain_maxvelocity;
616                    break;
617                case ::gig::sust_rel_trg_keyvelocity:
618                    flags |= release_trigger_sustain_keyvelocity;
619                    break;
620            }
621            return flags;
622      }      }
623    
624  }} // namespace LinuxSampler::gig  }} // namespace LinuxSampler::gig
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