/[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 325 by senkov, Tue Dec 21 04:54:37 2004 UTC revision 3646 by schoenebeck, Sun Dec 8 23:17:34 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 - 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 20  Line 23 
23   *   MA  02111-1307  USA                                                   *   *   MA  02111-1307  USA                                                   *
24   ***************************************************************************/   ***************************************************************************/
25    
 #include "EGADSR.h"  
 #include "Manipulator.h"  
26  #include "../../common/Features.h"  #include "../../common/Features.h"
27  #include "Synthesizer.h"  #include "Synthesizer.h"
28    #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(int64_t(::gig::lfo_wave_sine) == int64_t(LFO::wave_sine),
38      const int Voice::FILTER_UPDATE_MASK(CalculateFilterUpdateMask());                    "enum LFO::wave_t not equally value mapped to libgig's enum ::gig::lfo_wave_t");
39        static_assert(int64_t(::gig::lfo_wave_triangle) == int64_t(LFO::wave_triangle),
40      float Voice::CalculateFilterCutoffCoeff() {                    "enum LFO::wave_t not equally value mapped to libgig's enum ::gig::lfo_wave_t");
41          return log(FILTER_CUTOFF_MIN / FILTER_CUTOFF_MAX);      static_assert(int64_t(::gig::lfo_wave_saw) == int64_t(LFO::wave_saw),
42      }                    "enum LFO::wave_t not equally value mapped to libgig's enum ::gig::lfo_wave_t");
43        static_assert(int64_t(::gig::lfo_wave_square) == int64_t(LFO::wave_square),
44      int Voice::CalculateFilterUpdateMask() {                    "enum LFO::wave_t not equally value mapped to libgig's enum ::gig::lfo_wave_t");
45          if (FILTER_UPDATE_PERIOD <= 0) return 0;  
46          int power_of_two;      // converts ::gig::lfo_wave_t (libgig) -> LFO::wave_t (LinuxSampler)
47          for (power_of_two = 0; 1<<power_of_two < FILTER_UPDATE_PERIOD; power_of_two++);      inline LFO::wave_t fromGigLfoWave(::gig::lfo_wave_t wave) {
48          return (1 << power_of_two) - 1;          // simply assuming equally mapped enums on both sides
49            return static_cast<LFO::wave_t>(wave);
50      }      }
51    
52      Voice::Voice() {      Voice::Voice() {
53          pEngine     = NULL;          pEngine = NULL;
54          pDiskThread = NULL;          pEG1 = &EG1;
55          PlaybackState = playback_state_end;          pEG2 = &EG2;
         pEG1   = NULL;  
         pEG2   = NULL;  
         pEG3   = NULL;  
         pVCAManipulator  = NULL;  
         pVCFCManipulator = NULL;  
         pVCOManipulator  = NULL;  
         pLFO1  = NULL;  
         pLFO2  = NULL;  
         pLFO3  = NULL;  
         KeyGroup = 0;  
   
         // select synthesis implementation (currently either pure C++ or MMX+SSE(1))  
         SYNTHESIS_MODE_SET_IMPLEMENTATION(SynthesisMode, Features::supportsMMX() && Features::supportsSSE());  
         SYNTHESIS_MODE_SET_PROFILING(SynthesisMode, true);  
56      }      }
57    
58      Voice::~Voice() {      Voice::~Voice() {
59          if (pEG1)  delete pEG1;      }
         if (pEG2)  delete pEG2;  
         if (pEG3)  delete pEG3;  
         if (pLFO1) delete pLFO1;  
         if (pLFO2) delete pLFO2;  
         if (pLFO3) delete pLFO3;  
         if (pVCAManipulator)  delete pVCAManipulator;  
         if (pVCFCManipulator) delete pVCFCManipulator;  
         if (pVCOManipulator)  delete pVCOManipulator;  
     }  
   
     void Voice::SetEngine(Engine* pEngine) {  
         this->pEngine = pEngine;  
   
         // delete old objects  
         if (pEG1) delete pEG1;  
         if (pEG2) delete pEG2;  
         if (pEG3) delete pEG3;  
         if (pVCAManipulator)  delete pVCAManipulator;  
         if (pVCFCManipulator) delete pVCFCManipulator;  
         if (pVCOManipulator)  delete pVCOManipulator;  
         if (pLFO1) delete pLFO1;  
         if (pLFO2) delete pLFO2;  
         if (pLFO3) delete pLFO3;  
   
         // create new ones  
         pEG1   = new EGADSR(pEngine, Event::destination_vca);  
         pEG2   = new EGADSR(pEngine, Event::destination_vcfc);  
         pEG3   = new EGDecay(pEngine, Event::destination_vco);  
         pVCAManipulator  = new VCAManipulator(pEngine);  
         pVCFCManipulator = new VCFCManipulator(pEngine);  
         pVCOManipulator  = new VCOManipulator(pEngine);  
         pLFO1  = new LFO<gig::VCAManipulator>(0.0f, 1.0f, LFO<VCAManipulator>::propagation_top_down, pVCAManipulator, pEngine->pEventPool);  
         pLFO2  = new LFO<gig::VCFCManipulator>(0.0f, 1.0f, LFO<VCFCManipulator>::propagation_top_down, pVCFCManipulator, pEngine->pEventPool);  
         pLFO3  = new LFO<gig::VCOManipulator>(-1200.0f, 1200.0f, LFO<VCOManipulator>::propagation_middle_balanced, pVCOManipulator, pEngine->pEventPool); // +-1 octave (+-1200 cents) max.  
60    
61          this->pDiskThread = pEngine->pDiskThread;      EngineChannel* Voice::GetGigEngineChannel() {
62          dmsg(6,("Voice::SetEngine()\n"));          return static_cast<EngineChannel*>(pEngineChannel);
63      }      }
64    
65      /**      void Voice::SetEngine(LinuxSampler::Engine* pEngine) {
66       *  Initializes and triggers the voice, a disk stream will be launched if          Engine* engine = static_cast<Engine*>(pEngine);
67       *  needed.          this->pEngine     = engine;
68       *          this->pDiskThread = engine->pDiskThread;
69       *  @param itNoteOnEvent       - event that caused triggering of this voice          dmsg(6,("Voice::SetEngine()\n"));
70       *  @param PitchBend           - MIDI detune factor (-8192 ... +8191)      }
      *  @param pInstrument         - points to the loaded instrument which provides sample wave(s) and articulation data  
      *  @param iLayer              - layer number this voice refers to (only if this is a layered sound of course)  
      *  @param ReleaseTriggerVoice - if this new voice is a release trigger voice (optional, default = false)  
      *  @param VoiceStealing       - wether the voice is allowed to steal voices for further subvoices  
      *  @returns 0 on success, a value < 0 if something failed  
      */  
     int Voice::Trigger(Pool<Event>::Iterator& itNoteOnEvent, int PitchBend, ::gig::Instrument* pInstrument, int iLayer, bool ReleaseTriggerVoice, bool VoiceStealing) {  
         if (!pInstrument) {  
            dmsg(1,("voice::trigger: !pInstrument\n"));  
            exit(EXIT_FAILURE);  
         }  
         if (itNoteOnEvent->FragmentPos() > pEngine->MaxSamplesPerCycle) { // FIXME: should be removed before the final release (purpose: just a sanity check for debugging)  
             dmsg(1,("Voice::Trigger(): ERROR, TriggerDelay > Totalsamples\n"));  
         }  
   
         Type            = type_normal;  
         MIDIKey         = itNoteOnEvent->Param.Note.Key;  
         pRegion         = pInstrument->GetRegion(MIDIKey);  
         PlaybackState   = playback_state_ram; // we always start playback from RAM cache and switch then to disk if needed  
         Delay           = itNoteOnEvent->FragmentPos();  
         itTriggerEvent  = itNoteOnEvent;  
         itKillEvent     = Pool<Event>::Iterator();  
         itChildVoice    = Pool<Voice>::Iterator();  
   
         if (!pRegion) {  
             std::cerr << "gig::Voice: No Region defined for MIDI key " << MIDIKey << std::endl << std::flush;  
             KillImmediately();  
             return -1;  
         }  
   
         KeyGroup = pRegion->KeyGroup;  
   
         // get current dimension values to select the right dimension region  
         //FIXME: controller values for selecting the dimension region here are currently not sample accurate  
         uint DimValues[5] = {0,0,0,0,0};  
         for (int i = pRegion->Dimensions - 1; i >= 0; i--) {  
             switch (pRegion->pDimensionDefinitions[i].dimension) {  
                 case ::gig::dimension_samplechannel:  
                     DimValues[i] = 0; //TODO: we currently ignore this dimension  
                     break;  
                 case ::gig::dimension_layer:  
                     DimValues[i] = iLayer;  
                     // if this is the 1st layer then spawn further voices for all the other layers  
                     if (iLayer == 0)  
                         for (int iNewLayer = 1; iNewLayer < pRegion->pDimensionDefinitions[i].zones; iNewLayer++)  
                             itChildVoice = pEngine->LaunchVoice(itNoteOnEvent, iNewLayer, ReleaseTriggerVoice, VoiceStealing);  
                     break;  
                 case ::gig::dimension_velocity:  
                     DimValues[i] = itNoteOnEvent->Param.Note.Velocity;  
                     break;  
                 case ::gig::dimension_channelaftertouch:  
                     DimValues[i] = 0; //TODO: we currently ignore this dimension  
                     break;  
                 case ::gig::dimension_releasetrigger:  
                     Type = (ReleaseTriggerVoice) ? type_release_trigger : (!iLayer) ? type_release_trigger_required : type_normal;  
                     DimValues[i] = (uint) ReleaseTriggerVoice;  
                     break;  
                 case ::gig::dimension_keyboard:  
                     DimValues[i] = (uint) itNoteOnEvent->Param.Note.Key;  
                     break;  
                 case ::gig::dimension_modwheel:  
                     DimValues[i] = pEngine->ControllerTable[1];  
                     break;  
                 case ::gig::dimension_breath:  
                     DimValues[i] = pEngine->ControllerTable[2];  
                     break;  
                 case ::gig::dimension_foot:  
                     DimValues[i] = pEngine->ControllerTable[4];  
                     break;  
                 case ::gig::dimension_portamentotime:  
                     DimValues[i] = pEngine->ControllerTable[5];  
                     break;  
                 case ::gig::dimension_effect1:  
                     DimValues[i] = pEngine->ControllerTable[12];  
                     break;  
                 case ::gig::dimension_effect2:  
                     DimValues[i] = pEngine->ControllerTable[13];  
                     break;  
                 case ::gig::dimension_genpurpose1:  
                     DimValues[i] = pEngine->ControllerTable[16];  
                     break;  
                 case ::gig::dimension_genpurpose2:  
                     DimValues[i] = pEngine->ControllerTable[17];  
                     break;  
                 case ::gig::dimension_genpurpose3:  
                     DimValues[i] = pEngine->ControllerTable[18];  
                     break;  
                 case ::gig::dimension_genpurpose4:  
                     DimValues[i] = pEngine->ControllerTable[19];  
                     break;  
                 case ::gig::dimension_sustainpedal:  
                     DimValues[i] = pEngine->ControllerTable[64];  
                     break;  
                 case ::gig::dimension_portamento:  
                     DimValues[i] = pEngine->ControllerTable[65];  
                     break;  
                 case ::gig::dimension_sostenutopedal:  
                     DimValues[i] = pEngine->ControllerTable[66];  
                     break;  
                 case ::gig::dimension_softpedal:  
                     DimValues[i] = pEngine->ControllerTable[67];  
                     break;  
                 case ::gig::dimension_genpurpose5:  
                     DimValues[i] = pEngine->ControllerTable[80];  
                     break;  
                 case ::gig::dimension_genpurpose6:  
                     DimValues[i] = pEngine->ControllerTable[81];  
                     break;  
                 case ::gig::dimension_genpurpose7:  
                     DimValues[i] = pEngine->ControllerTable[82];  
                     break;  
                 case ::gig::dimension_genpurpose8:  
                     DimValues[i] = pEngine->ControllerTable[83];  
                     break;  
                 case ::gig::dimension_effect1depth:  
                     DimValues[i] = pEngine->ControllerTable[91];  
                     break;  
                 case ::gig::dimension_effect2depth:  
                     DimValues[i] = pEngine->ControllerTable[92];  
                     break;  
                 case ::gig::dimension_effect3depth:  
                     DimValues[i] = pEngine->ControllerTable[93];  
                     break;  
                 case ::gig::dimension_effect4depth:  
                     DimValues[i] = pEngine->ControllerTable[94];  
                     break;  
                 case ::gig::dimension_effect5depth:  
                     DimValues[i] = pEngine->ControllerTable[95];  
                     break;  
                 case ::gig::dimension_none:  
                     std::cerr << "gig::Voice::Trigger() Error: dimension=none\n" << std::flush;  
                     break;  
                 default:  
                     std::cerr << "gig::Voice::Trigger() Error: Unknown dimension\n" << std::flush;  
             }  
         }  
         pDimRgn = pRegion->GetDimensionRegionByValue(DimValues[4],DimValues[3],DimValues[2],DimValues[1],DimValues[0]);  
71    
72          pSample = pDimRgn->pSample; // sample won't change until the voice is finished      Voice::SampleInfo Voice::GetSampleInfo() {
73            SampleInfo si;
74            si.SampleRate       = pSample->SamplesPerSecond;
75            si.ChannelCount     = pSample->Channels;
76            si.FrameSize        = pSample->FrameSize;
77            si.BitDepth         = pSample->BitDepth;
78            si.TotalFrameCount  = (uint)pSample->SamplesTotal;
79    
80          // select channel mode (mono or stereo)          si.HasLoops       = pRegion->SampleLoops;
81          SYNTHESIS_MODE_SET_CHANNELS(SynthesisMode, pSample->Channels == 2);          si.LoopStart      = (si.HasLoops) ? pRegion->pSampleLoops[0].LoopStart  : 0;
82            si.LoopLength     = (si.HasLoops) ? pRegion->pSampleLoops[0].LoopLength : 0;
83            si.LoopPlayCount  = pSample->LoopPlayCount;
84            si.Unpitched      = !pRegion->PitchTrack;
85    
86          // get starting crossfade volume level          return si;
87          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(pEngine->ControllerTable[pDimRgn->AttenuationController.controller_number]);  
                 break;  
             case ::gig::attenuation_ctrl_t::type_none: // no crossfade defined  
             default:  
                 CrossfadeVolume = 1.0f;  
         }  
88    
89          PanLeft  = 1.0f - float(RTMath::Max(pDimRgn->Pan, 0)) /  63.0f;      Voice::RegionInfo Voice::GetRegionInfo() {
90          PanRight = 1.0f - float(RTMath::Min(pDimRgn->Pan, 0)) / -64.0f;          RegionInfo ri;
91            ri.UnityNote = pRegion->UnityNote;
92            ri.FineTune  = pRegion->FineTune;
93            ri.Pan       = pRegion->Pan;
94            ri.SampleStartOffset = pRegion->SampleStartOffset;
95    
96          Pos = pDimRgn->SampleStartOffset; // offset where we should start playback of sample (0 - 2000 sample points)          ri.EG2PreAttack        = pRegion->EG2PreAttack;
97            ri.EG2Attack           = pRegion->EG2Attack;
98            ri.EG2Decay1           = pRegion->EG2Decay1;
99            ri.EG2Decay2           = pRegion->EG2Decay2;
100            ri.EG2Sustain          = pRegion->EG2Sustain;
101            ri.EG2InfiniteSustain  = pRegion->EG2InfiniteSustain;
102            ri.EG2Release          = pRegion->EG2Release;
103    
104          // Check if the sample needs disk streaming or is too short for that          ri.EG3Attack     = pRegion->EG3Attack;
105          long cachedsamples = pSample->GetCache().Size / pSample->FrameSize;          ri.EG3Depth      = pRegion->EG3Depth;
106          DiskVoice          = cachedsamples < pSample->SamplesTotal;          ri.VCFEnabled    = pRegion->VCFEnabled;
107            ri.VCFType       = Filter::vcf_type_t(pRegion->VCFType);
108            ri.VCFResonance  = pRegion->VCFResonance;
109    
110          if (DiskVoice) { // voice to be streamed from disk          ri.ReleaseTriggerDecay = 0.01053 * (256 >> pRegion->ReleaseTriggerDecay);
             MaxRAMPos = cachedsamples - (pEngine->MaxSamplesPerCycle << 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)  
111    
112              // check if there's a loop defined which completely fits into the cached (RAM) part of the sample          return ri;
113              if (pSample->Loops && pSample->LoopEnd <= MaxRAMPos) {      }
                 RAMLoop        = true;  
                 LoopCyclesLeft = pSample->LoopPlayCount;  
             }  
             else RAMLoop = false;  
114    
115              if (pDiskThread->OrderNewStream(&DiskStreamRef, pSample, MaxRAMPos, !RAMLoop) < 0) {      Voice::InstrumentInfo Voice::GetInstrumentInfo() {
116                  dmsg(1,("Disk stream order failed!\n"));          InstrumentInfo ii;
117                  KillImmediately();          ii.FineTune = GetGigEngineChannel()->pInstrument->FineTune;
118                  return -1;          ii.PitchbendRange = GetGigEngineChannel()->pInstrument->PitchbendRange;
             }  
             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;  
                 LoopCyclesLeft = pSample->LoopPlayCount;  
             }  
             else RAMLoop = false;  
             dmsg(4,("RAM only voice launched (Looping: %s)\n", (RAMLoop) ? "yes" : "no"));  
         }  
119    
120            return ii;
121        }
122    
123          // calculate initial pitch value      double Voice::GetSampleAttenuation() {
124          {          return pRegion->SampleAttenuation;
125              double pitchbasecents = pDimRgn->FineTune * 10 + (int) pEngine->ScaleTuning[MIDIKey % 12];      }
             if (pDimRgn->PitchTrack) pitchbasecents += (MIDIKey - (int) pDimRgn->UnityNote) * 100;  
             this->PitchBase = RTMath::CentsToFreqRatio(pitchbasecents) * (double(pSample->SamplesPerSecond) / double(pEngine->pAudioOutputDevice->SampleRate()));  
             this->PitchBend = RTMath::CentsToFreqRatio(((double) PitchBend / 8192.0) * 200.0); // pitchbend wheel +-2 semitones = 200 cents  
         }  
   
         Volume = pDimRgn->GetVelocityAttenuation(itNoteOnEvent->Param.Note.Velocity) / 32768.0f; // we downscale by 32768 to convert from int16 value range to DSP value range (which is -1.0..1.0)  
   
         // 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 = pEngine->ControllerTable[pDimRgn->EG1Controller.controller_number];  
                     break;  
             }  
             if (pDimRgn->EG1ControllerInvert) eg1controllervalue = 127 - eg1controllervalue;  
126    
127              // calculate influence of EG1 controller on EG1's parameters (TODO: needs to be fine tuned)      double Voice::GetVelocityAttenuation(uint8_t MIDIKeyVelocity) {
128              double eg1attack  = (pDimRgn->EG1ControllerAttackInfluence)  ? 0.0001 * (double) (1 << pDimRgn->EG1ControllerAttackInfluence)  * eg1controllervalue : 0.0;          return pRegion->GetVelocityAttenuation(MIDIKeyVelocity);
129              double eg1decay   = (pDimRgn->EG1ControllerDecayInfluence)   ? 0.0001 * (double) (1 << pDimRgn->EG1ControllerDecayInfluence)   * eg1controllervalue : 0.0;      }
             double eg1release = (pDimRgn->EG1ControllerReleaseInfluence) ? 0.0001 * (double) (1 << pDimRgn->EG1ControllerReleaseInfluence) * eg1controllervalue : 0.0;  
   
             pEG1->Trigger(pDimRgn->EG1PreAttack,  
                           pDimRgn->EG1Attack + eg1attack,  
                           pDimRgn->EG1Hold,  
                           pSample->LoopStart,  
                           pDimRgn->EG1Decay1 + eg1decay,  
                           pDimRgn->EG1Decay2 + eg1decay,  
                           pDimRgn->EG1InfiniteSustain,  
                           pDimRgn->EG1Sustain,  
                           pDimRgn->EG1Release + eg1release,  
                           Delay);  
         }  
130    
131        double Voice::GetVelocityRelease(uint8_t MIDIKeyVelocity) {
132            return pRegion->GetVelocityRelease(MIDIKeyVelocity);
133        }
134    
135          // setup EG 2 (VCF Cutoff EG)      void Voice::ProcessCCEvent(RTList<Event>::Iterator& itEvent) {
136          {          if (itEvent->Type == Event::type_control_change && itEvent->Param.CC.Controller) { // if (valid) MIDI control change event
137              // get current value of EG2 controller              if (pRegion->AttenuationController.type == ::gig::attenuation_ctrl_t::type_controlchange &&
138              double eg2controllervalue;                  itEvent->Param.CC.Controller == pRegion->AttenuationController.controller_number) {
139              switch (pDimRgn->EG2Controller.type) {                  CrossfadeSmoother.update(AbstractEngine::CrossfadeCurve[CrossfadeAttenuation(itEvent->Param.CC.Value)]);
                 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 = pEngine->ControllerTable[pDimRgn->EG2Controller.controller_number];  
                     break;  
140              }              }
             if (pDimRgn->EG2ControllerInvert) eg2controllervalue = 127 - eg2controllervalue;  
   
             // calculate influence of EG2 controller on EG2's parameters (TODO: needs to be fine tuned)  
             double eg2attack  = (pDimRgn->EG2ControllerAttackInfluence)  ? 0.0001 * (double) (1 << pDimRgn->EG2ControllerAttackInfluence)  * eg2controllervalue : 0.0;  
             double eg2decay   = (pDimRgn->EG2ControllerDecayInfluence)   ? 0.0001 * (double) (1 << pDimRgn->EG2ControllerDecayInfluence)   * eg2controllervalue : 0.0;  
             double eg2release = (pDimRgn->EG2ControllerReleaseInfluence) ? 0.0001 * (double) (1 << pDimRgn->EG2ControllerReleaseInfluence) * eg2controllervalue : 0.0;  
   
             pEG2->Trigger(pDimRgn->EG2PreAttack,  
                           pDimRgn->EG2Attack + eg2attack,  
                           false,  
                           pSample->LoopStart,  
                           pDimRgn->EG2Decay1 + eg2decay,  
                           pDimRgn->EG2Decay2 + eg2decay,  
                           pDimRgn->EG2InfiniteSustain,  
                           pDimRgn->EG2Sustain,  
                           pDimRgn->EG2Release + eg2release,  
                           Delay);  
141          }          }
142        }
143    
144        void Voice::ProcessChannelPressureEvent(RTList<Event>::Iterator& itEvent) {
145          // setup EG 3 (VCO EG)          if (itEvent->Type == Event::type_channel_pressure) { // if (valid) MIDI channel pressure (aftertouch) event
146          {              if (pRegion->AttenuationController.type == ::gig::attenuation_ctrl_t::type_channelaftertouch) {
147            double eg3depth = RTMath::CentsToFreqRatio(pDimRgn->EG3Depth);                  CrossfadeSmoother.update(AbstractEngine::CrossfadeCurve[CrossfadeAttenuation(itEvent->Param.ChannelPressure.Value)]);
148            pEG3->Trigger(eg3depth, pDimRgn->EG3Attack, Delay);              }
149          }          }
150        }
151    
152        void Voice::ProcessPolyphonicKeyPressureEvent(RTList<Event>::Iterator& itEvent) {
153            // Not used so far
154        }
155    
156          // setup LFO 1 (VCA LFO)      void Voice::ProcessCutoffEvent(RTList<Event>::Iterator& itEvent) {
157          {          int ccvalue = itEvent->Param.CC.Value;
158              uint16_t lfo1_internal_depth;          if (VCFCutoffCtrl.value == ccvalue) return;
159              switch (pDimRgn->LFO1Controller) {          VCFCutoffCtrl.value = ccvalue;
160                  case ::gig::lfo1_ctrl_internal:          if (pRegion->VCFCutoffControllerInvert)  ccvalue = 127 - ccvalue;
161                      lfo1_internal_depth  = pDimRgn->LFO1InternalDepth;          if (ccvalue < pRegion->VCFVelocityScale) ccvalue = pRegion->VCFVelocityScale;
162                      pLFO1->ExtController = 0; // no external controller          float cutoff = CutoffBase * float(ccvalue);
163                      break;          if (cutoff > 127.0f) cutoff = 127.0f;
                 case ::gig::lfo1_ctrl_modwheel:  
                     lfo1_internal_depth  = 0;  
                     pLFO1->ExtController = 1; // MIDI controller 1  
                     break;  
                 case ::gig::lfo1_ctrl_breath:  
                     lfo1_internal_depth  = 0;  
                     pLFO1->ExtController = 2; // MIDI controller 2  
                     break;  
                 case ::gig::lfo1_ctrl_internal_modwheel:  
                     lfo1_internal_depth  = pDimRgn->LFO1InternalDepth;  
                     pLFO1->ExtController = 1; // MIDI controller 1  
                     break;  
                 case ::gig::lfo1_ctrl_internal_breath:  
                     lfo1_internal_depth  = pDimRgn->LFO1InternalDepth;  
                     pLFO1->ExtController = 2; // MIDI controller 2  
                     break;  
                 default:  
                     lfo1_internal_depth  = 0;  
                     pLFO1->ExtController = 0; // no external controller  
             }  
             pLFO1->Trigger(pDimRgn->LFO1Frequency,  
                           lfo1_internal_depth,  
                           pDimRgn->LFO1ControlDepth,  
                           pEngine->ControllerTable[pLFO1->ExtController],  
                           pDimRgn->LFO1FlipPhase,  
                           pEngine->SampleRate,  
                           Delay);  
         }  
164    
165            VCFCutoffCtrl.fvalue = cutoff; // needed for initialization of fFinalCutoff next time
166            fFinalCutoff = cutoff;
167        }
168    
169          // setup LFO 2 (VCF Cutoff LFO)      double Voice::CalculateCrossfadeVolume(uint8_t MIDIKeyVelocity) {
170          {          float crossfadeVolume;
171              uint16_t lfo2_internal_depth;          switch (pRegion->AttenuationController.type) {
172              switch (pDimRgn->LFO2Controller) {              case ::gig::attenuation_ctrl_t::type_channelaftertouch:
173                  case ::gig::lfo2_ctrl_internal:                  crossfadeVolume = Engine::CrossfadeCurve[CrossfadeAttenuation(GetGigEngineChannel()->ControllerTable[128])];
174                      lfo2_internal_depth  = pDimRgn->LFO2InternalDepth;                  break;
175                      pLFO2->ExtController = 0; // no external controller              case ::gig::attenuation_ctrl_t::type_velocity:
176                      break;                  crossfadeVolume = Engine::CrossfadeCurve[CrossfadeAttenuation(MIDIKeyVelocity)];
177                  case ::gig::lfo2_ctrl_modwheel:                  break;
178                      lfo2_internal_depth  = 0;              case ::gig::attenuation_ctrl_t::type_controlchange: //FIXME: currently not sample accurate
179                      pLFO2->ExtController = 1; // MIDI controller 1                  crossfadeVolume = Engine::CrossfadeCurve[CrossfadeAttenuation(GetGigEngineChannel()->ControllerTable[pRegion->AttenuationController.controller_number])];
180                      break;                  break;
181                  case ::gig::lfo2_ctrl_foot:              case ::gig::attenuation_ctrl_t::type_none: // no crossfade defined
182                      lfo2_internal_depth  = 0;              default:
183                      pLFO2->ExtController = 4; // MIDI controller 4                  crossfadeVolume = 1.0f;
                     break;  
                 case ::gig::lfo2_ctrl_internal_modwheel:  
                     lfo2_internal_depth  = pDimRgn->LFO2InternalDepth;  
                     pLFO2->ExtController = 1; // MIDI controller 1  
                     break;  
                 case ::gig::lfo2_ctrl_internal_foot:  
                     lfo2_internal_depth  = pDimRgn->LFO2InternalDepth;  
                     pLFO2->ExtController = 4; // MIDI controller 4  
                     break;  
                 default:  
                     lfo2_internal_depth  = 0;  
                     pLFO2->ExtController = 0; // no external controller  
             }  
             pLFO2->Trigger(pDimRgn->LFO2Frequency,  
                           lfo2_internal_depth,  
                           pDimRgn->LFO2ControlDepth,  
                           pEngine->ControllerTable[pLFO2->ExtController],  
                           pDimRgn->LFO2FlipPhase,  
                           pEngine->SampleRate,  
                           Delay);  
184          }          }
185    
186            return crossfadeVolume;
187        }
188    
189          // setup LFO 3 (VCO LFO)      double Voice::GetEG1ControllerValue(uint8_t MIDIKeyVelocity) {
190          {          double eg1controllervalue = 0;
191              uint16_t lfo3_internal_depth;          switch (pRegion->EG1Controller.type) {
192              switch (pDimRgn->LFO3Controller) {              case ::gig::eg1_ctrl_t::type_none: // no controller defined
193                  case ::gig::lfo3_ctrl_internal:                  eg1controllervalue = 0;
194                      lfo3_internal_depth  = pDimRgn->LFO3InternalDepth;                  break;
195                      pLFO3->ExtController = 0; // no external controller              case ::gig::eg1_ctrl_t::type_channelaftertouch:
196                      break;                  eg1controllervalue = GetGigEngineChannel()->ControllerTable[128];
197                  case ::gig::lfo3_ctrl_modwheel:                  break;
198                      lfo3_internal_depth  = 0;              case ::gig::eg1_ctrl_t::type_velocity:
199                      pLFO3->ExtController = 1; // MIDI controller 1                  eg1controllervalue = MIDIKeyVelocity;
200                      break;                  break;
201                  case ::gig::lfo3_ctrl_aftertouch:              case ::gig::eg1_ctrl_t::type_controlchange: // MIDI control change controller
202                      lfo3_internal_depth  = 0;                  eg1controllervalue = GetGigEngineChannel()->ControllerTable[pRegion->EG1Controller.controller_number];
203                      pLFO3->ExtController = 0; // TODO: aftertouch not implemented yet                  break;
                     break;  
                 case ::gig::lfo3_ctrl_internal_modwheel:  
                     lfo3_internal_depth  = pDimRgn->LFO3InternalDepth;  
                     pLFO3->ExtController = 1; // MIDI controller 1  
                     break;  
                 case ::gig::lfo3_ctrl_internal_aftertouch:  
                     lfo3_internal_depth  = pDimRgn->LFO3InternalDepth;  
                     pLFO1->ExtController = 0; // TODO: aftertouch not implemented yet  
                     break;  
                 default:  
                     lfo3_internal_depth  = 0;  
                     pLFO3->ExtController = 0; // no external controller  
             }  
             pLFO3->Trigger(pDimRgn->LFO3Frequency,  
                           lfo3_internal_depth,  
                           pDimRgn->LFO3ControlDepth,  
                           pEngine->ControllerTable[pLFO3->ExtController],  
                           false,  
                           pEngine->SampleRate,  
                           Delay);  
204          }          }
205            if (pRegion->EG1ControllerInvert) eg1controllervalue = 127 - eg1controllervalue;
206    
207            return eg1controllervalue;
208        }
209    
210          #if FORCE_FILTER_USAGE      Voice::EGInfo Voice::CalculateEG1ControllerInfluence(double eg1ControllerValue) {
211          SYNTHESIS_MODE_SET_FILTER(SynthesisMode, true);          EGInfo eg;
212          #else // use filter only if instrument file told so          // (eg1attack is different from the others)
213          SYNTHESIS_MODE_SET_FILTER(SynthesisMode, pDimRgn->VCFEnabled);          if (pRegion->EG1Attack < 1e-8 && // attack in gig == 0
214          #endif // FORCE_FILTER_USAGE              (pRegion->EG1ControllerAttackInfluence == 0 ||
215          if (pDimRgn->VCFEnabled) {               eg1ControllerValue <= 10)) { // strange GSt special case
216              #ifdef OVERRIDE_FILTER_CUTOFF_CTRL              eg.Attack = 0; // this will force the attack to be 0 in the call to EG1.trigger
217              VCFCutoffCtrl.controller = OVERRIDE_FILTER_CUTOFF_CTRL;          } else {
218              #else // use the one defined in the instrument file              eg.Attack  = (pRegion->EG1ControllerAttackInfluence)  ?
219              switch (pDimRgn->VCFCutoffController) {                  1 + 0.031 * (double) (pRegion->EG1ControllerAttackInfluence == 1 ?
220                  case ::gig::vcf_cutoff_ctrl_modwheel:                                        1 : 1 << pRegion->EG1ControllerAttackInfluence) * eg1ControllerValue : 1.0;
221                      VCFCutoffCtrl.controller = 1;          }
222                      break;          eg.Decay   = (pRegion->EG1ControllerDecayInfluence)   ? 1 + 0.00775 * (double) (1 << pRegion->EG1ControllerDecayInfluence)   * eg1ControllerValue : 1.0;
223                  case ::gig::vcf_cutoff_ctrl_effect1:          eg.Release = (pRegion->EG1ControllerReleaseInfluence) ? 1 + 0.00775 * (double) (1 << pRegion->EG1ControllerReleaseInfluence) * eg1ControllerValue : 1.0;
224                      VCFCutoffCtrl.controller = 12;  
225                      break;          return eg;
226                  case ::gig::vcf_cutoff_ctrl_effect2:      }
227                      VCFCutoffCtrl.controller = 13;  
228                      break;      double Voice::GetEG2ControllerValue(uint8_t MIDIKeyVelocity) {
229                  case ::gig::vcf_cutoff_ctrl_breath:          double eg2controllervalue = 0;
230                      VCFCutoffCtrl.controller = 2;          switch (pRegion->EG2Controller.type) {
231                      break;              case ::gig::eg2_ctrl_t::type_none: // no controller defined
232                  case ::gig::vcf_cutoff_ctrl_foot:                  eg2controllervalue = 0;
233                      VCFCutoffCtrl.controller = 4;                  break;
234                      break;              case ::gig::eg2_ctrl_t::type_channelaftertouch:
235                  case ::gig::vcf_cutoff_ctrl_sustainpedal:                  eg2controllervalue = GetGigEngineChannel()->ControllerTable[128];
236                      VCFCutoffCtrl.controller = 64;                  break;
237                      break;              case ::gig::eg2_ctrl_t::type_velocity:
238                  case ::gig::vcf_cutoff_ctrl_softpedal:                  eg2controllervalue = MIDIKeyVelocity;
239                      VCFCutoffCtrl.controller = 67;                  break;
240                      break;              case ::gig::eg2_ctrl_t::type_controlchange: // MIDI control change controller
241                  case ::gig::vcf_cutoff_ctrl_genpurpose7:                  eg2controllervalue = GetGigEngineChannel()->ControllerTable[pRegion->EG2Controller.controller_number];
242                      VCFCutoffCtrl.controller = 82;                  break;
243                      break;          }
244                  case ::gig::vcf_cutoff_ctrl_genpurpose8:          if (pRegion->EG2ControllerInvert) eg2controllervalue = 127 - eg2controllervalue;
                     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 // OVERRIDE_FILTER_CUTOFF_CTRL  
245    
246              #ifdef OVERRIDE_FILTER_RES_CTRL          return eg2controllervalue;
247              VCFResonanceCtrl.controller = OVERRIDE_FILTER_RES_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 // OVERRIDE_FILTER_RES_CTRL  
248    
249              #ifndef OVERRIDE_FILTER_TYPE      Voice::EGInfo Voice::CalculateEG2ControllerInfluence(double eg2ControllerValue) {
250              FilterLeft.SetType(pDimRgn->VCFType);          EGInfo eg;
251              FilterRight.SetType(pDimRgn->VCFType);          eg.Attack  = (pRegion->EG2ControllerAttackInfluence)  ? 1 + 0.00775 * (double) (1 << pRegion->EG2ControllerAttackInfluence)  * eg2ControllerValue : 1.0;
252              #else // override filter type          eg.Decay   = (pRegion->EG2ControllerDecayInfluence)   ? 1 + 0.00775 * (double) (1 << pRegion->EG2ControllerDecayInfluence)   * eg2ControllerValue : 1.0;
253              FilterLeft.SetType(OVERRIDE_FILTER_TYPE);          eg.Release = (pRegion->EG2ControllerReleaseInfluence) ? 1 + 0.00775 * (double) (1 << pRegion->EG2ControllerReleaseInfluence) * eg2ControllerValue : 1.0;
             FilterRight.SetType(OVERRIDE_FILTER_TYPE);  
             #endif // OVERRIDE_FILTER_TYPE  
   
             VCFCutoffCtrl.value    = pEngine->ControllerTable[VCFCutoffCtrl.controller];  
             VCFResonanceCtrl.value = pEngine->ControllerTable[VCFResonanceCtrl.controller];  
   
             // calculate cutoff frequency  
             float cutoff = (!VCFCutoffCtrl.controller)  
                 ? exp((float) (127 - itNoteOnEvent->Param.Note.Velocity) * (float) pDimRgn->VCFVelocityScale * 6.2E-5f * FILTER_CUTOFF_COEFF) * FILTER_CUTOFF_MAX  
                 : exp((float) VCFCutoffCtrl.value * 0.00787402f * FILTER_CUTOFF_COEFF) * FILTER_CUTOFF_MAX;  
   
             // calculate resonance  
             float resonance = (float) VCFResonanceCtrl.value * 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)  
254    
255              VCFCutoffCtrl.fvalue    = cutoff - FILTER_CUTOFF_MIN;          return eg;
256              VCFResonanceCtrl.fvalue = resonance;      }
257    
258              FilterUpdateCounter = -1;      void Voice::InitLFO1() {
259          }          uint16_t lfo1_internal_depth;
260          else {          switch (pRegion->LFO1Controller) {
261              VCFCutoffCtrl.controller    = 0;              case ::gig::lfo1_ctrl_internal:
262              VCFResonanceCtrl.controller = 0;                  lfo1_internal_depth  = pRegion->LFO1InternalDepth;
263                    pLFO1->ExtController = 0; // no external controller
264                    bLFO1Enabled         = (lfo1_internal_depth > 0);
265                    break;
266                case ::gig::lfo1_ctrl_modwheel:
267                    lfo1_internal_depth  = 0;
268                    pLFO1->ExtController = 1; // MIDI controller 1
269                    bLFO1Enabled         = (pRegion->LFO1ControlDepth > 0);
270                    break;
271                case ::gig::lfo1_ctrl_breath:
272                    lfo1_internal_depth  = 0;
273                    pLFO1->ExtController = 2; // MIDI controller 2
274                    bLFO1Enabled         = (pRegion->LFO1ControlDepth > 0);
275                    break;
276                case ::gig::lfo1_ctrl_internal_modwheel:
277                    lfo1_internal_depth  = pRegion->LFO1InternalDepth;
278                    pLFO1->ExtController = 1; // MIDI controller 1
279                    bLFO1Enabled         = (lfo1_internal_depth > 0 || pRegion->LFO1ControlDepth > 0);
280                    break;
281                case ::gig::lfo1_ctrl_internal_breath:
282                    lfo1_internal_depth  = pRegion->LFO1InternalDepth;
283                    pLFO1->ExtController = 2; // MIDI controller 2
284                    bLFO1Enabled         = (lfo1_internal_depth > 0 || pRegion->LFO1ControlDepth > 0);
285                    break;
286                default:
287                    lfo1_internal_depth  = 0;
288                    pLFO1->ExtController = 0; // no external controller
289                    bLFO1Enabled         = false;
290            }
291            if (bLFO1Enabled) {
292                pLFO1->trigger(fromGigLfoWave(pRegion->LFO1WaveForm),
293                               pRegion->LFO1Frequency,
294                               pRegion->LFO1Phase,
295                               LFO::start_level_mid, // see https://sourceforge.net/p/linuxsampler/mailman/linuxsampler-devel/thread/2189307.cNP0Xbctxq%40silver/#msg36774029
296                               lfo1_internal_depth,
297                               pRegion->LFO1ControlDepth,
298                               pRegion->LFO1FlipPhase,
299                               pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
300                pLFO1->updateByMIDICtrlValue(pLFO1->ExtController ? GetGigEngineChannel()->ControllerTable[pLFO1->ExtController] : 0);
301                pLFO1->setScriptDepthFactor(
302                    pNote->Override.AmpLFODepth.Value,
303                    pNote->Override.AmpLFODepth.Final
304                );
305                if (pNote->Override.AmpLFOFreq.isFinal())
306                    pLFO1->setScriptFrequencyFinal(
307                        pNote->Override.AmpLFOFreq.Value, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE
308                    );
309                else
310                    pLFO1->setScriptFrequencyFactor(
311                        pNote->Override.AmpLFOFreq.Value, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE
312                    );
313          }          }
   
         return 0; // success  
314      }      }
315    
316      /**      void Voice::InitLFO2() {
317       *  Renders the audio data for this voice for the current audio fragment.          uint16_t lfo2_internal_depth;
318       *  The sample input data can either come from RAM (cached sample or sample          switch (pRegion->LFO2Controller) {
319       *  part) or directly from disk. The output signal will be rendered by              case ::gig::lfo2_ctrl_internal:
320       *  resampling / interpolation. If this voice is a disk streaming voice and                  lfo2_internal_depth  = pRegion->LFO2InternalDepth;
321       *  the voice completely played back the cached RAM part of the sample, it                  pLFO2->ExtController = 0; // no external controller
322       *  will automatically switch to disk playback for the next RenderAudio()                  bLFO2Enabled         = (lfo2_internal_depth > 0);
323       *  call.                  break;
324       *              case ::gig::lfo2_ctrl_modwheel:
325       *  @param Samples - number of samples to be rendered in this audio fragment cycle                  lfo2_internal_depth  = 0;
326       */                  pLFO2->ExtController = 1; // MIDI controller 1
327      void Voice::Render(uint Samples) {                  bLFO2Enabled         = (pRegion->LFO2ControlDepth > 0);
328                    break;
329          // select default values for synthesis mode bits              case ::gig::lfo2_ctrl_foot:
330          SYNTHESIS_MODE_SET_INTERPOLATE(SynthesisMode, (PitchBase * PitchBend) != 1.0f);                  lfo2_internal_depth  = 0;
331          SYNTHESIS_MODE_SET_CONSTPITCH(SynthesisMode, true);                  pLFO2->ExtController = 4; // MIDI controller 4
332          SYNTHESIS_MODE_SET_LOOP(SynthesisMode, false);                  bLFO2Enabled         = (pRegion->LFO2ControlDepth > 0);
333                    break;
334          // Reset the synthesis parameter matrix              case ::gig::lfo2_ctrl_internal_modwheel:
335                    lfo2_internal_depth  = pRegion->LFO2InternalDepth;
336          pEngine->ResetSynthesisParameters(Event::destination_vca, this->Volume * this->CrossfadeVolume * pEngine->GlobalVolume);                  pLFO2->ExtController = 1; // MIDI controller 1
337          pEngine->ResetSynthesisParameters(Event::destination_vco, this->PitchBase);                  bLFO2Enabled         = (lfo2_internal_depth > 0 || pRegion->LFO2ControlDepth > 0);
338          pEngine->ResetSynthesisParameters(Event::destination_vcfc, VCFCutoffCtrl.fvalue);                  break;
339          pEngine->ResetSynthesisParameters(Event::destination_vcfr, VCFResonanceCtrl.fvalue);              case ::gig::lfo2_ctrl_internal_foot:
340                    lfo2_internal_depth  = pRegion->LFO2InternalDepth;
341          // Apply events to the synthesis parameter matrix                  pLFO2->ExtController = 4; // MIDI controller 4
342          ProcessEvents(Samples);                  bLFO2Enabled         = (lfo2_internal_depth > 0 || pRegion->LFO2ControlDepth > 0);
343                    break;
344          // Let all modulators write their parameter changes to the synthesis parameter matrix for the current audio fragment              default:
345          pEG1->Process(Samples, pEngine->pMIDIKeyInfo[MIDIKey].pEvents, itTriggerEvent, this->Pos, this->PitchBase * this->PitchBend, itKillEvent);                  lfo2_internal_depth  = 0;
346          pEG2->Process(Samples, pEngine->pMIDIKeyInfo[MIDIKey].pEvents, itTriggerEvent, this->Pos, this->PitchBase * this->PitchBend);                  pLFO2->ExtController = 0; // no external controller
347          if (pEG3->Process(Samples)) { // if pitch EG is active                  bLFO2Enabled         = false;
348              SYNTHESIS_MODE_SET_INTERPOLATE(SynthesisMode, true);          }
349              SYNTHESIS_MODE_SET_CONSTPITCH(SynthesisMode, false);          if (bLFO2Enabled) {
350          }              pLFO2->trigger(fromGigLfoWave(pRegion->LFO2WaveForm),
351          pLFO1->Process(Samples);                             pRegion->LFO2Frequency,
352          pLFO2->Process(Samples);                             pRegion->LFO2Phase,
353          if (pLFO3->Process(Samples)) { // if pitch LFO modulation is active                             LFO::start_level_mid, // see https://sourceforge.net/p/linuxsampler/mailman/linuxsampler-devel/thread/2189307.cNP0Xbctxq%40silver/#msg36774029
354              SYNTHESIS_MODE_SET_INTERPOLATE(SynthesisMode, true);                             lfo2_internal_depth,
355              SYNTHESIS_MODE_SET_CONSTPITCH(SynthesisMode, false);                             pRegion->LFO2ControlDepth,
356          }                             pRegion->LFO2FlipPhase,
357                               pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
358          if (SYNTHESIS_MODE_GET_FILTER(SynthesisMode))              pLFO2->updateByMIDICtrlValue(pLFO2->ExtController ? GetGigEngineChannel()->ControllerTable[pLFO2->ExtController] : 0);
359                  CalculateBiquadParameters(Samples); // calculate the final biquad filter parameters              pLFO2->setScriptDepthFactor(
360                    pNote->Override.CutoffLFODepth.Value,
361          switch (this->PlaybackState) {                  pNote->Override.CutoffLFODepth.Final
362                );
363              case playback_state_ram: {              if (pNote->Override.CutoffLFOFreq.isFinal())
364                      if (RAMLoop) SYNTHESIS_MODE_SET_LOOP(SynthesisMode, true); // enable looping                  pLFO2->setScriptFrequencyFinal(pNote->Override.CutoffLFOFreq.Value, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
365                else
366                      // render current fragment                  pLFO2->setScriptFrequencyFactor(pNote->Override.CutoffLFOFreq.Value, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
                     Synthesize(Samples, (sample_t*) pSample->GetCache().pStart, Delay);  
   
                     if (DiskVoice) {  
                         // check if we reached the allowed limit of the sample RAM cache  
                         if (Pos > MaxRAMPos) {  
                             dmsg(5,("Voice: switching to disk playback (Pos=%f)\n", Pos));  
                             this->PlaybackState = playback_state_disk;  
                         }  
                     }  
                     else if (Pos >= pSample->GetCache().Size / pSample->FrameSize) {  
                         this->PlaybackState = playback_state_end;  
                     }  
                 }  
                 break;  
   
             case playback_state_disk: {  
                     if (!DiskStreamRef.pStream) {  
                         // check if the disk thread created our ordered disk stream in the meantime  
                         DiskStreamRef.pStream = pDiskThread->AskForCreatedStream(DiskStreamRef.OrderID);  
                         if (!DiskStreamRef.pStream) {  
                             std::cout << stderr << "Disk stream not available in time!" << std::endl << std::flush;  
                             KillImmediately();  
                             return;  
                         }  
                         DiskStreamRef.pStream->IncrementReadPos(pSample->Channels * (int(Pos) - MaxRAMPos));  
                         Pos -= int(Pos);  
                     }  
   
                     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 << MAX_PITCH) * pSample->Channels + 6; // +6 for the interpolator algorithm  
                         if (sampleWordsLeftToRead <= maxSampleWordsPerCycle) {  
                             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) Pos;  
                     const int readSampleWords = iPos * pSample->Channels; // amount of sample words actually been read  
                     DiskStreamRef.pStream->IncrementReadPos(readSampleWords);  
                     Pos -= iPos; // just keep fractional part of Pos  
   
                     // change state of voice to 'end' if we really reached the end of the sample data  
                     if (DiskStreamRef.State == Stream::state_end && readSampleWords >= sampleWordsLeftToRead) 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 synthesis event lists (except VCO, as VCO events apply channel wide currently)  
         pEngine->pSynthesisEvents[Event::destination_vca]->clear();  
         pEngine->pSynthesisEvents[Event::destination_vcfc]->clear();  
         pEngine->pSynthesisEvents[Event::destination_vcfr]->clear();  
   
         // Reset delay  
         Delay = 0;  
   
         itTriggerEvent = Pool<Event>::Iterator();  
   
         // If sample stream or release stage finished, kill the voice  
         if (PlaybackState == playback_state_end || pEG1->GetStage() == EGADSR::stage_end) KillImmediately();  
     }  
   
     /**  
      *  Resets voice variables. Should only be called if rendering process is  
      *  suspended / not running.  
      */  
     void Voice::Reset() {  
         pLFO1->Reset();  
         pLFO2->Reset();  
         pLFO3->Reset();  
         FilterLeft.Reset();  
         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 the control change event lists of the engine for the current  
      *  audio fragment. Event values will be applied to the synthesis parameter  
      *  matrix.  
      *  
      *  @param Samples - number of samples to be rendered in this audio fragment cycle  
      */  
     void Voice::ProcessEvents(uint Samples) {  
   
         // dispatch control change events  
         RTList<Event>::Iterator itCCEvent = pEngine->pCCEvents->first();  
         if (Delay) { // skip events that happened before this voice was triggered  
             while (itCCEvent && itCCEvent->FragmentPos() <= Delay) ++itCCEvent;  
         }  
         while (itCCEvent) {  
             if (itCCEvent->Param.CC.Controller) { // if valid MIDI controller  
                 if (itCCEvent->Param.CC.Controller == VCFCutoffCtrl.controller) {  
                     *pEngine->pSynthesisEvents[Event::destination_vcfc]->allocAppend() = *itCCEvent;  
                 }  
                 if (itCCEvent->Param.CC.Controller == VCFResonanceCtrl.controller) {  
                     *pEngine->pSynthesisEvents[Event::destination_vcfr]->allocAppend() = *itCCEvent;  
                 }  
                 if (itCCEvent->Param.CC.Controller == pLFO1->ExtController) {  
                     pLFO1->SendEvent(itCCEvent);  
                 }  
                 if (itCCEvent->Param.CC.Controller == pLFO2->ExtController) {  
                     pLFO2->SendEvent(itCCEvent);  
                 }  
                 if (itCCEvent->Param.CC.Controller == pLFO3->ExtController) {  
                     pLFO3->SendEvent(itCCEvent);  
                 }  
                 if (pDimRgn->AttenuationController.type == ::gig::attenuation_ctrl_t::type_controlchange &&  
                     itCCEvent->Param.CC.Controller == pDimRgn->AttenuationController.controller_number) { // if crossfade event  
                     *pEngine->pSynthesisEvents[Event::destination_vca]->allocAppend() = *itCCEvent;  
                 }  
             }  
   
             ++itCCEvent;  
367          }          }
368        }
369    
370        void Voice::InitLFO3() {
371          // process pitch events          uint16_t lfo3_internal_depth;
372          {          switch (pRegion->LFO3Controller) {
373              RTList<Event>* pVCOEventList = pEngine->pSynthesisEvents[Event::destination_vco];              case ::gig::lfo3_ctrl_internal:
374              RTList<Event>::Iterator itVCOEvent = pVCOEventList->first();                  lfo3_internal_depth  = pRegion->LFO3InternalDepth;
375              if (Delay) { // skip events that happened before this voice was triggered                  pLFO3->ExtController = 0; // no external controller
376                  while (itVCOEvent && itVCOEvent->FragmentPos() <= Delay) ++itVCOEvent;                  bLFO3Enabled         = (lfo3_internal_depth > 0);
377              }                  break;
378              // apply old pitchbend value until first pitch event occurs              case ::gig::lfo3_ctrl_modwheel:
379              if (this->PitchBend != 1.0) {                  lfo3_internal_depth  = 0;
380                  uint end = (itVCOEvent) ? itVCOEvent->FragmentPos() : Samples;                  pLFO3->ExtController = 1; // MIDI controller 1
381                  for (uint i = Delay; i < end; i++) {                  bLFO3Enabled         = (pRegion->LFO3ControlDepth > 0);
382                      pEngine->pSynthesisParameters[Event::destination_vco][i] *= this->PitchBend;                  break;
383                  }              case ::gig::lfo3_ctrl_aftertouch:
384              }                  lfo3_internal_depth  = 0;
385              float pitch;                  pLFO3->ExtController = CTRL_TABLE_IDX_AFTERTOUCH;
386              while (itVCOEvent) {                  bLFO3Enabled         = true;
387                  RTList<Event>::Iterator itNextVCOEvent = itVCOEvent;                  break;
388                  ++itNextVCOEvent;              case ::gig::lfo3_ctrl_internal_modwheel:
389                    lfo3_internal_depth  = pRegion->LFO3InternalDepth;
390                  // calculate the influence length of this event (in sample points)                  pLFO3->ExtController = 1; // MIDI controller 1
391                  uint end = (itNextVCOEvent) ? itNextVCOEvent->FragmentPos() : Samples;                  bLFO3Enabled         = (lfo3_internal_depth > 0 || pRegion->LFO3ControlDepth > 0);
392                    break;
393                  pitch = RTMath::CentsToFreqRatio(((double) itVCOEvent->Param.Pitch.Pitch / 8192.0) * 200.0); // +-two semitones = +-200 cents              case ::gig::lfo3_ctrl_internal_aftertouch:
394                    lfo3_internal_depth  = pRegion->LFO3InternalDepth;
395                  // apply pitch value to the pitch parameter sequence                  pLFO3->ExtController = CTRL_TABLE_IDX_AFTERTOUCH;
396                  for (uint i = itVCOEvent->FragmentPos(); i < end; i++) {                  bLFO3Enabled         = (lfo3_internal_depth > 0 || pRegion->LFO3ControlDepth > 0);
397                      pEngine->pSynthesisParameters[Event::destination_vco][i] *= pitch;                  break;
398                  }              default:
399                    lfo3_internal_depth  = 0;
400                  itVCOEvent = itNextVCOEvent;                  pLFO3->ExtController = 0; // no external controller
401              }                  bLFO3Enabled         = false;
402              if (!pVCOEventList->isEmpty()) {          }
403                  this->PitchBend = pitch;          if (bLFO3Enabled) {
404                  SYNTHESIS_MODE_SET_INTERPOLATE(SynthesisMode, true);              pLFO3->trigger(fromGigLfoWave(pRegion->LFO3WaveForm),
405                  SYNTHESIS_MODE_SET_CONSTPITCH(SynthesisMode, false);                             pRegion->LFO3Frequency,
406              }                             pRegion->LFO3Phase,
407                               LFO::start_level_max, // see https://sourceforge.net/p/linuxsampler/mailman/linuxsampler-devel/thread/2189307.cNP0Xbctxq%40silver/#msg36774029
408                               lfo3_internal_depth,
409                               pRegion->LFO3ControlDepth,
410                               pRegion->LFO3FlipPhase,
411                               pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
412                pLFO3->updateByMIDICtrlValue(pLFO3->ExtController ? GetGigEngineChannel()->ControllerTable[pLFO3->ExtController] : 0);
413                pLFO3->setScriptDepthFactor(
414                    pNote->Override.PitchLFODepth.Value,
415                    pNote->Override.PitchLFODepth.Final
416                );
417                if (pNote->Override.PitchLFOFreq.isFinal())
418                    pLFO3->setScriptFrequencyFinal(pNote->Override.PitchLFOFreq.Value, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
419                else
420                    pLFO3->setScriptFrequencyFactor(pNote->Override.PitchLFOFreq.Value, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
421          }          }
422        }
423    
424          // process volume / attenuation events (TODO: we only handle and _expect_ crossfade events here ATM !)      float Voice::CalculateCutoffBase(uint8_t MIDIKeyVelocity) {
425          {          float cutoff = pRegion->GetVelocityCutoff(MIDIKeyVelocity);
426              RTList<Event>* pVCAEventList = pEngine->pSynthesisEvents[Event::destination_vca];          if (pRegion->VCFKeyboardTracking) {
427              RTList<Event>::Iterator itVCAEvent = pVCAEventList->first();              cutoff *= RTMath::CentsToFreqRatioUnlimited((MIDIKey() - pRegion->VCFKeyboardTrackingBreakpoint) * 100);
428              if (Delay) { // skip events that happened before this voice was triggered          }
429                  while (itVCAEvent && itVCAEvent->FragmentPos() <= Delay) ++itVCAEvent;          return cutoff;
430              }      }
431              float crossfadevolume;  
432              while (itVCAEvent) {      /// Returns true for GigaStudio's original filter types.
433                  RTList<Event>::Iterator itNextVCAEvent = itVCAEvent;      constexpr bool isGStFilterType(::gig::vcf_type_t type) {
434                  ++itNextVCAEvent;          return type == ::gig::vcf_type_lowpass ||
435                   type == ::gig::vcf_type_lowpassturbo ||
436                  // calculate the influence length of this event (in sample points)                 type == ::gig::vcf_type_bandpass ||
437                  uint end = (itNextVCAEvent) ? itNextVCAEvent->FragmentPos() : Samples;                 type == ::gig::vcf_type_highpass ||
438                   type == ::gig::vcf_type_bandreject;
439                  crossfadevolume = CrossfadeAttenuation(itVCAEvent->Param.CC.Value);      }
440    
441                  float effective_volume = crossfadevolume * this->Volume * pEngine->GlobalVolume;      float Voice::CalculateFinalCutoff(float cutoffBase) {
442            int cvalue;
443                  // apply volume value to the volume parameter sequence          if (VCFCutoffCtrl.controller) {
444                  for (uint i = itVCAEvent->FragmentPos(); i < end; i++) {              cvalue = GetGigEngineChannel()->ControllerTable[VCFCutoffCtrl.controller];
445                      pEngine->pSynthesisParameters[Event::destination_vca][i] = effective_volume;              if (pRegion->VCFCutoffControllerInvert) cvalue = 127 - cvalue;
446                  }              // VCFVelocityScale in this case means Minimum cutoff
447                if (cvalue < pRegion->VCFVelocityScale) cvalue = pRegion->VCFVelocityScale;
                 itVCAEvent = itNextVCAEvent;  
             }  
             if (!pVCAEventList->isEmpty()) this->CrossfadeVolume = crossfadevolume;  
448          }          }
449            else {
450          // process filter cutoff events              cvalue = pRegion->VCFCutoff;
         {  
             RTList<Event>* pCutoffEventList = pEngine->pSynthesisEvents[Event::destination_vcfc];  
             RTList<Event>::Iterator itCutoffEvent = pCutoffEventList->first();  
             if (Delay) { // skip events that happened before this voice was triggered  
                 while (itCutoffEvent && itCutoffEvent->FragmentPos() <= Delay) ++itCutoffEvent;  
             }  
             float cutoff;  
             while (itCutoffEvent) {  
                 RTList<Event>::Iterator itNextCutoffEvent = itCutoffEvent;  
                 ++itNextCutoffEvent;  
   
                 // calculate the influence length of this event (in sample points)  
                 uint end = (itNextCutoffEvent) ? itNextCutoffEvent->FragmentPos() : Samples;  
   
                 cutoff = exp((float) itCutoffEvent->Param.CC.Value * 0.00787402f * FILTER_CUTOFF_COEFF) * FILTER_CUTOFF_MAX - FILTER_CUTOFF_MIN;  
   
                 // apply cutoff frequency to the cutoff parameter sequence  
                 for (uint i = itCutoffEvent->FragmentPos(); i < end; i++) {  
                     pEngine->pSynthesisParameters[Event::destination_vcfc][i] = cutoff;  
                 }  
   
                 itCutoffEvent = itNextCutoffEvent;  
             }  
             if (!pCutoffEventList->isEmpty()) VCFCutoffCtrl.fvalue = cutoff; // needed for initialization of parameter matrix next time  
451          }          }
452            float fco = cutoffBase * float(cvalue);
453            if (fco > 127.0f) fco = 127.0f;
454    
455          // process filter resonance events          // the filter implementations of the original GSt filter types take an
456          {          // abstract cutoff parameter range of 0..127, ...
457              RTList<Event>* pResonanceEventList = pEngine->pSynthesisEvents[Event::destination_vcfr];          if (isGStFilterType(pRegion->VCFType))
458              RTList<Event>::Iterator itResonanceEvent = pResonanceEventList->first();              return fco;
459              if (Delay) { // skip events that happened before this voice was triggered  
460                  while (itResonanceEvent && itResonanceEvent->FragmentPos() <= Delay) ++itResonanceEvent;          // ... whereas our own filter types take a cutoff parameter in Hz, so
461              }          // remap here 0 .. 127 [lin] -> 21 Hz .. 18 kHz [log4] (center @2.2 kHz)
462              while (itResonanceEvent) {          fco = (fco + 29.f) / (127.f + 29.f);
463                  RTList<Event>::Iterator itNextResonanceEvent = itResonanceEvent;          fco = fco * fco * fco * fco * 18000.f;
464                  ++itNextResonanceEvent;          if (fco > 0.49f * pEngine->SampleRate)
465                fco = 0.49f * pEngine->SampleRate;
466                  // calculate the influence length of this event (in sample points)          return fco;
467                  uint end = (itNextResonanceEvent) ? itNextResonanceEvent->FragmentPos() : Samples;      }
468    
469                  // convert absolute controller value to differential      uint8_t Voice::GetVCFCutoffCtrl() {
470                  int ctrldelta = itResonanceEvent->Param.CC.Value - VCFResonanceCtrl.value;          uint8_t ctrl;
471                  VCFResonanceCtrl.value = itResonanceEvent->Param.CC.Value;          switch (pRegion->VCFCutoffController) {
472                case ::gig::vcf_cutoff_ctrl_modwheel:
473                  float resonancedelta = (float) ctrldelta * 0.00787f; // 0.0..1.0                  ctrl = 1;
474                    break;
475                  // apply cutoff frequency to the cutoff parameter sequence              case ::gig::vcf_cutoff_ctrl_effect1:
476                  for (uint i = itResonanceEvent->FragmentPos(); i < end; i++) {                  ctrl = 12;
477                      pEngine->pSynthesisParameters[Event::destination_vcfr][i] += resonancedelta;                  break;
478                  }              case ::gig::vcf_cutoff_ctrl_effect2:
479                    ctrl = 13;
480                  itResonanceEvent = itNextResonanceEvent;                  break;
481              }              case ::gig::vcf_cutoff_ctrl_breath:
482              if (!pResonanceEventList->isEmpty()) VCFResonanceCtrl.fvalue = pResonanceEventList->last()->Param.CC.Value * 0.00787f; // needed for initialization of parameter matrix next time                  ctrl = 2;
483                    break;
484                case ::gig::vcf_cutoff_ctrl_foot:
485                    ctrl = 4;
486                    break;
487                case ::gig::vcf_cutoff_ctrl_sustainpedal:
488                    ctrl = 64;
489                    break;
490                case ::gig::vcf_cutoff_ctrl_softpedal:
491                    ctrl = 67;
492                    break;
493                case ::gig::vcf_cutoff_ctrl_genpurpose7:
494                    ctrl = 82;
495                    break;
496                case ::gig::vcf_cutoff_ctrl_genpurpose8:
497                    ctrl = 83;
498                    break;
499                case ::gig::vcf_cutoff_ctrl_aftertouch:
500                    ctrl = CTRL_TABLE_IDX_AFTERTOUCH;
501                    break;
502                case ::gig::vcf_cutoff_ctrl_none:
503                default:
504                    ctrl = 0;
505                    break;
506          }          }
     }  
507    
508      /**          return ctrl;
509       * Calculate all necessary, final biquad filter parameters.      }
      *  
      * @param Samples - number of samples to be rendered in this audio fragment cycle  
      */  
     void Voice::CalculateBiquadParameters(uint Samples) {  
         biquad_param_t bqbase;  
         biquad_param_t bqmain;  
         float prev_cutoff = pEngine->pSynthesisParameters[Event::destination_vcfc][0];  
         float prev_res    = pEngine->pSynthesisParameters[Event::destination_vcfr][0];  
         FilterLeft.SetParameters(&bqbase, &bqmain, prev_cutoff, prev_res, pEngine->SampleRate);  
         FilterRight.SetParameters(&bqbase, &bqmain, prev_cutoff, prev_res, pEngine->SampleRate);  
         pEngine->pBasicFilterParameters[0] = bqbase;  
         pEngine->pMainFilterParameters[0]  = bqmain;  
   
         float* bq;  
         for (int i = 1; i < Samples; i++) {  
             // recalculate biquad parameters if cutoff or resonance differ from previous sample point  
             if (!(i & FILTER_UPDATE_MASK)) {  
                 if (pEngine->pSynthesisParameters[Event::destination_vcfr][i] != prev_res ||  
                     pEngine->pSynthesisParameters[Event::destination_vcfc][i] != prev_cutoff)  
                 {  
                     prev_cutoff = pEngine->pSynthesisParameters[Event::destination_vcfc][i];  
                     prev_res    = pEngine->pSynthesisParameters[Event::destination_vcfr][i];  
                     FilterLeft.SetParameters(&bqbase, &bqmain, prev_cutoff, prev_res, pEngine->SampleRate);  
                     FilterRight.SetParameters(&bqbase, &bqmain, prev_cutoff, prev_res, pEngine->SampleRate);  
                 }  
             }  
510    
511              //same as 'pEngine->pBasicFilterParameters[i] = bqbase;'      uint8_t Voice::GetVCFResonanceCtrl() {
512              bq    = (float*) &pEngine->pBasicFilterParameters[i];          uint8_t ctrl;
513              bq[0] = bqbase.b0;          switch (pRegion->VCFResonanceController) {
514              bq[1] = bqbase.b1;              case ::gig::vcf_res_ctrl_genpurpose3:
515              bq[2] = bqbase.b2;                  ctrl = 18;
516              bq[3] = bqbase.a1;                  break;
517              bq[4] = bqbase.a2;              case ::gig::vcf_res_ctrl_genpurpose4:
518                    ctrl = 19;
519              // same as 'pEngine->pMainFilterParameters[i] = bqmain;'                  break;
520              bq    = (float*) &pEngine->pMainFilterParameters[i];              case ::gig::vcf_res_ctrl_genpurpose5:
521              bq[0] = bqmain.b0;                  ctrl = 80;
522              bq[1] = bqmain.b1;                  break;
523              bq[2] = bqmain.b2;              case ::gig::vcf_res_ctrl_genpurpose6:
524              bq[3] = bqmain.a1;                  ctrl = 81;
525              bq[4] = bqmain.a2;                  break;
526                case ::gig::vcf_res_ctrl_none:
527                default:
528                    ctrl = 0;
529          }          }
     }  
530    
531      /**          return ctrl;
532       *  Synthesizes the current audio fragment for this voice.      }
      *  
      *  @param Samples - number of sample points to be rendered in this audio  
      *                   fragment cycle  
      *  @param pSrc    - pointer to input sample data  
      *  @param Skip    - number of sample points to skip in output buffer  
      */  
     void Voice::Synthesize(uint Samples, sample_t* pSrc, uint Skip) {  
         RunSynthesisFunction(SynthesisMode, *this, Samples, pSrc, Skip);  
     }  
   
     /**  
      *  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) {  
         //FIXME: just two sanity checks for debugging, can be removed  
         if (!itKillEvent) dmsg(1,("gig::Voice::Kill(): ERROR, !itKillEvent !!!\n"));  
         if (itKillEvent && !itKillEvent.isValid()) dmsg(1,("gig::Voice::Kill(): ERROR, itKillEvent invalid !!!\n"));  
533    
534          if (itTriggerEvent && itKillEvent->FragmentPos() <= itTriggerEvent->FragmentPos()) return;      void Voice::TriggerEG1(const EGInfo& egInfo, double velrelease, double velocityAttenuation, uint sampleRate, uint8_t velocity) {
535          this->itKillEvent = itKillEvent;          EG1.setStateOptions(
536                pRegion->EG1Options.AttackCancel,
537                pRegion->EG1Options.AttackHoldCancel,
538                pRegion->EG1Options.Decay1Cancel,
539                pRegion->EG1Options.Decay2Cancel,
540                pRegion->EG1Options.ReleaseCancel
541            );
542            EG1.trigger(pRegion->EG1PreAttack,
543                        (pNote && pNote->Override.Attack.isFinal()) ?
544                            pNote->Override.Attack.Value :
545                            RTMath::Max(pRegion->EG1Attack, 0.0316) * egInfo.Attack,
546                        pRegion->EG1Hold,
547                        (pNote && pNote->Override.Decay.isFinal()) ?
548                            pNote->Override.Decay.Value :
549                            pRegion->EG1Decay1 * egInfo.Decay * velrelease,
550                        (pNote && pNote->Override.Decay.isFinal()) ?
551                            pNote->Override.Decay.Value :
552                            pRegion->EG1Decay2 * egInfo.Decay * velrelease,
553                        pRegion->EG1InfiniteSustain,
554                        (pNote && pNote->Override.Sustain.Final) ?
555                            uint(pNote->Override.Sustain.Value * 1000.f) :
556                            pRegion->EG1Sustain * (pNote ? pNote->Override.Sustain.Value : 1.f),
557                        (pNote && pNote->Override.Release.isFinal()) ?
558                            pNote->Override.Release.Value :
559                            RTMath::Max(pRegion->EG1Release * velrelease, 0.014) * egInfo.Release,
560                        velocityAttenuation,
561                        sampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
562        }
563    
564        void Voice::TriggerEG2(const EGInfo& egInfo, double velrelease, double velocityAttenuation, uint sampleRate, uint8_t velocity) {
565            EG2.setStateOptions(
566                pRegion->EG2Options.AttackCancel,
567                pRegion->EG2Options.AttackHoldCancel,
568                pRegion->EG2Options.Decay1Cancel,
569                pRegion->EG2Options.Decay2Cancel,
570                pRegion->EG2Options.ReleaseCancel
571            );
572            EG2.trigger(uint(RgnInfo.EG2PreAttack),
573                        (pNote && pNote->Override.CutoffAttack.isFinal()) ?
574                            pNote->Override.CutoffAttack.Value :
575                            RgnInfo.EG2Attack * egInfo.Attack,
576                        false,
577                        (pNote && pNote->Override.CutoffDecay.isFinal()) ?
578                            pNote->Override.CutoffDecay.Value :
579                            RgnInfo.EG2Decay1 * egInfo.Decay * velrelease,
580                        (pNote && pNote->Override.CutoffDecay.isFinal()) ?
581                            pNote->Override.CutoffDecay.Value :
582                            RgnInfo.EG2Decay2 * egInfo.Decay * velrelease,
583                        RgnInfo.EG2InfiniteSustain,
584                        (pNote && pNote->Override.CutoffSustain.Final) ?
585                            uint(pNote->Override.CutoffSustain.Value * 1000.f) :
586                            uint(RgnInfo.EG2Sustain),
587                        (pNote && pNote->Override.CutoffRelease.isFinal()) ?
588                            pNote->Override.CutoffRelease.Value :
589                            RgnInfo.EG2Release * egInfo.Release * velrelease,
590                        velocityAttenuation,
591                        sampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
592        }
593    
594        void Voice::ProcessGroupEvent(RTList<Event>::Iterator& itEvent) {
595            dmsg(4,("Voice %p processGroupEvents event type=%d", (void*)this, itEvent->Type));
596    
597            // TODO: The SustainPedal condition could be wrong, maybe the
598            // check should be if this Voice is in release stage or is a
599            // release sample instead. Need to test this in GSt.
600            // -- Andreas
601            //
602            // Commented sustain pedal check out. I don't think voices of the same
603            // note should be stopped at all, because it doesn't sound naturally
604            // with a drumkit.
605            // -- Christian, 2013-01-08
606            if (itEvent->Param.Note.Key != HostKey() /*||
607                !GetGigEngineChannel()->SustainPedal*/) {
608                dmsg(4,("Voice %p - kill", (void*)this));
609    
610                // kill the voice fast
611                pEG1->enterFadeOutStage();
612            }
613        }
614    
615        void Voice::CalculateFadeOutCoeff(float FadeOutTime, float SampleRate) {
616            EG1.CalculateFadeOutCoeff(FadeOutTime, SampleRate);
617        }
618    
619        int Voice::CalculatePan(uint8_t pan) {
620            int p;
621            // Gst behaviour: -64 and 63 are special cases
622            if (RgnInfo.Pan == -64)     p = pan * 2 - 127;
623            else if (RgnInfo.Pan == 63) p = pan * 2;
624            else                        p = pan + RgnInfo.Pan;
625    
626            if (p < 0) return 0;
627            if (p > 127) return 127;
628            return p;
629        }
630    
631        release_trigger_t Voice::GetReleaseTriggerFlags() {
632            release_trigger_t flags =
633                (pRegion->NoNoteOffReleaseTrigger) ?
634                    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
635            switch (pRegion->SustainReleaseTrigger) {
636                case ::gig::sust_rel_trg_none:
637                    break;
638                case ::gig::sust_rel_trg_maxvelocity:
639                    flags |= release_trigger_sustain_maxvelocity;
640                    break;
641                case ::gig::sust_rel_trg_keyvelocity:
642                    flags |= release_trigger_sustain_keyvelocity;
643                    break;
644            }
645            return flags;
646      }      }
647    
648  }} // namespace LinuxSampler::gig  }} // namespace LinuxSampler::gig
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