/[svn]/linuxsampler/trunk/src/engines/gig/Voice.cpp
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revision 729 by persson, Tue Jul 26 11:18:46 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 21  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(::gig::lfo_wave_sine == LFO::wave_sine);
38      const int Voice::FILTER_UPDATE_MASK(CalculateFilterUpdateMask());      static_assert(::gig::lfo_wave_triangle == LFO::wave_triangle);
39        static_assert(::gig::lfo_wave_saw == LFO::wave_saw);
40      float Voice::CalculateFilterCutoffCoeff() {      static_assert(::gig::lfo_wave_square == LFO::wave_square);
41          return log(CONFIG_FILTER_CUTOFF_MAX / CONFIG_FILTER_CUTOFF_MIN);  
42      }      // converts ::gig::lfo_wave_t (libgig) -> LFO::wave_t (LinuxSampler)
43        inline LFO::wave_t fromGigLfoWave(::gig::lfo_wave_t wave) {
44      int Voice::CalculateFilterUpdateMask() {          // simply assuming equally mapped enums on both sides
45          if (CONFIG_FILTER_UPDATE_STEPS <= 0) return 0;          return static_cast<LFO::wave_t>(wave);
         int power_of_two;  
         for (power_of_two = 0; 1<<power_of_two < CONFIG_FILTER_UPDATE_STEPS; power_of_two++);  
         return (1 << power_of_two) - 1;  
46      }      }
47    
48      Voice::Voice() {      Voice::Voice() {
49          pEngine     = NULL;          pEngine = NULL;
50          pDiskThread = NULL;          pEG1 = &EG1;
51          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;  
         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, true);  
   
         FilterLeft.Reset();  
         FilterRight.Reset();  
52      }      }
53    
54      Voice::~Voice() {      Voice::~Voice() {
55          if (pEG1)  delete pEG1;      }
56          if (pEG2)  delete pEG2;  
57          if (pEG3)  delete pEG3;      EngineChannel* Voice::GetGigEngineChannel() {
58          if (pLFO1) delete pLFO1;          return static_cast<EngineChannel*>(pEngineChannel);
59          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;      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          Pos = pDimRgn->SampleStartOffset; // offset where we should start playback of sample (0 - 2000 sample points)          ri.EG2PreAttack        = pRegion->EG2PreAttack;
93            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            ri.VCFResonance  = pRegion->VCFResonance;
105    
106          if (DiskVoice) { // voice to be streamed from disk          ri.ReleaseTriggerDecay = 0.01053 * (256 >> pRegion->ReleaseTriggerDecay);
             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)  
107    
108              // check if there's a loop defined which completely fits into the cached (RAM) part of the sample          return ri;
109              if (pSample->Loops && pSample->LoopEnd <= MaxRAMPos) {      }
                 RAMLoop        = true;  
                 LoopCyclesLeft = pSample->LoopPlayCount;  
             }  
             else RAMLoop = false;  
110    
111              if (pDiskThread->OrderNewStream(&DiskStreamRef, pSample, MaxRAMPos, !RAMLoop) < 0) {      Voice::InstrumentInfo Voice::GetInstrumentInfo() {
112                  dmsg(1,("Disk stream order failed!\n"));          InstrumentInfo ii;
113                  KillImmediately();          ii.FineTune = GetGigEngineChannel()->pInstrument->FineTune;
114                  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"));  
         }  
115    
116            return ii;
117        }
118    
119          // calculate initial pitch value      double Voice::GetSampleAttenuation() {
120          {          return pRegion->SampleAttenuation;
121              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->pAudioOutputDevice->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;  
122    
123              // calculate influence of EG1 controller on EG1's parameters      double Voice::GetVelocityAttenuation(uint8_t MIDIKeyVelocity) {
124              // (eg1attack is different from the others)          return pRegion->GetVelocityAttenuation(MIDIKeyVelocity);
125              double eg1attack  = (pDimRgn->EG1ControllerAttackInfluence)  ?      }
                 1 + 0.031 * (double) (pDimRgn->EG1ControllerAttackInfluence == 1 ?  
                                       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;  
   
             pEG1->Trigger(pDimRgn->EG1PreAttack,  
                           pDimRgn->EG1Attack * eg1attack,  
                           pDimRgn->EG1Hold,  
                           pSample->LoopStart,  
                           pDimRgn->EG1Decay1 * eg1decay * velrelease,  
                           pDimRgn->EG1Decay2 * eg1decay * velrelease,  
                           pDimRgn->EG1InfiniteSustain,  
                           pDimRgn->EG1Sustain,  
                           pDimRgn->EG1Release * eg1release * velrelease,  
                           // the SSE synthesis implementation requires  
                           // the vca start to be 16 byte aligned  
                           SYNTHESIS_MODE_GET_IMPLEMENTATION(SynthesisMode) ?  
                           Delay & 0xfffffffc : Delay,  
                           velocityAttenuation);  
         }  
126    
127        double Voice::GetVelocityRelease(uint8_t MIDIKeyVelocity) {
128            return pRegion->GetVelocityRelease(MIDIKeyVelocity);
129        }
130    
131          // setup EG 2 (VCF Cutoff 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              // get current value of EG2 controller              if (pRegion->AttenuationController.type == ::gig::attenuation_ctrl_t::type_controlchange &&
134              double eg2controllervalue;                  itEvent->Param.CC.Controller == pRegion->AttenuationController.controller_number) {
135              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 = pEngineChannel->ControllerTable[pDimRgn->EG2Controller.controller_number];  
                     break;  
136              }              }
             if (pDimRgn->EG2ControllerInvert) eg2controllervalue = 127 - eg2controllervalue;  
   
             // calculate influence of EG2 controller on EG2's parameters  
             double eg2attack  = (pDimRgn->EG2ControllerAttackInfluence)  ? 1 + 0.00775 * (double) (1 << pDimRgn->EG2ControllerAttackInfluence)  * eg2controllervalue : 1.0;  
             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;  
   
             pEG2->Trigger(pDimRgn->EG2PreAttack,  
                           pDimRgn->EG2Attack * eg2attack,  
                           false,  
                           pSample->LoopStart,  
                           pDimRgn->EG2Decay1 * eg2decay * velrelease,  
                           pDimRgn->EG2Decay2 * eg2decay * velrelease,  
                           pDimRgn->EG2InfiniteSustain,  
                           pDimRgn->EG2Sustain,  
                           pDimRgn->EG2Release * eg2release * velrelease,  
                           Delay,  
                           velocityAttenuation);  
137          }          }
138        }
139    
140        void Voice::ProcessChannelPressureEvent(RTList<Event>::Iterator& itEvent) {
141          // setup EG 3 (VCO EG)          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            double eg3depth = RTMath::CentsToFreqRatio(pDimRgn->EG3Depth);                  CrossfadeSmoother.update(AbstractEngine::CrossfadeCurve[CrossfadeAttenuation(itEvent->Param.ChannelPressure.Value)]);
144            pEG3->Trigger(eg3depth, pDimRgn->EG3Attack, Delay);              }
145          }          }
146        }
147    
148        void Voice::ProcessPolyphonicKeyPressureEvent(RTList<Event>::Iterator& itEvent) {
149            // Not used so far
150        }
151    
152          // setup LFO 1 (VCA LFO)      void Voice::ProcessCutoffEvent(RTList<Event>::Iterator& itEvent) {
153          {          int ccvalue = itEvent->Param.CC.Value;
154              uint16_t lfo1_internal_depth;          if (VCFCutoffCtrl.value == ccvalue) return;
155              switch (pDimRgn->LFO1Controller) {          VCFCutoffCtrl.value = ccvalue;
156                  case ::gig::lfo1_ctrl_internal:          if (pRegion->VCFCutoffControllerInvert)  ccvalue = 127 - ccvalue;
157                      lfo1_internal_depth  = pDimRgn->LFO1InternalDepth;          if (ccvalue < pRegion->VCFVelocityScale) ccvalue = pRegion->VCFVelocityScale;
158                      pLFO1->ExtController = 0; // no external controller          float cutoff = CutoffBase * float(ccvalue);
159                      bLFO1Enabled         = (lfo1_internal_depth > 0);          if (cutoff > 127.0f) cutoff = 127.0f;
                     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;  
             }  
             if (bLFO1Enabled) pLFO1->Trigger(pDimRgn->LFO1Frequency,  
                                              lfo1_internal_depth,  
                                              pDimRgn->LFO1ControlDepth,  
                                              pEngineChannel->ControllerTable[pLFO1->ExtController],  
                                              pDimRgn->LFO1FlipPhase,  
                                              pEngine->SampleRate,  
                                              Delay);  
         }  
160    
161            VCFCutoffCtrl.fvalue = cutoff; // needed for initialization of fFinalCutoff next time
162            fFinalCutoff = cutoff;
163        }
164    
165          // setup LFO 2 (VCF Cutoff LFO)      double Voice::CalculateCrossfadeVolume(uint8_t MIDIKeyVelocity) {
166          {          float crossfadeVolume;
167              uint16_t lfo2_internal_depth;          switch (pRegion->AttenuationController.type) {
168              switch (pDimRgn->LFO2Controller) {              case ::gig::attenuation_ctrl_t::type_channelaftertouch:
169                  case ::gig::lfo2_ctrl_internal:                  crossfadeVolume = Engine::CrossfadeCurve[CrossfadeAttenuation(GetGigEngineChannel()->ControllerTable[128])];
170                      lfo2_internal_depth  = pDimRgn->LFO2InternalDepth;                  break;
171                      pLFO2->ExtController = 0; // no external controller              case ::gig::attenuation_ctrl_t::type_velocity:
172                      bLFO2Enabled         = (lfo2_internal_depth > 0);                  crossfadeVolume = Engine::CrossfadeCurve[CrossfadeAttenuation(MIDIKeyVelocity)];
173                      break;                  break;
174                  case ::gig::lfo2_ctrl_modwheel:              case ::gig::attenuation_ctrl_t::type_controlchange: //FIXME: currently not sample accurate
175                      lfo2_internal_depth  = 0;                  crossfadeVolume = Engine::CrossfadeCurve[CrossfadeAttenuation(GetGigEngineChannel()->ControllerTable[pRegion->AttenuationController.controller_number])];
176                      pLFO2->ExtController = 1; // MIDI controller 1                  break;
177                      bLFO2Enabled         = (pDimRgn->LFO2ControlDepth > 0);              case ::gig::attenuation_ctrl_t::type_none: // no crossfade defined
178                      break;              default:
179                  case ::gig::lfo2_ctrl_foot:                  crossfadeVolume = 1.0f;
                     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,  
                                              lfo2_internal_depth,  
                                              pDimRgn->LFO2ControlDepth,  
                                              pEngineChannel->ControllerTable[pLFO2->ExtController],  
                                              pDimRgn->LFO2FlipPhase,  
                                              pEngine->SampleRate,  
                                              Delay);  
180          }          }
181    
182            return crossfadeVolume;
183        }
184    
185          // setup LFO 3 (VCO LFO)      double Voice::GetEG1ControllerValue(uint8_t MIDIKeyVelocity) {
186          {          double eg1controllervalue = 0;
187              uint16_t lfo3_internal_depth;          switch (pRegion->EG1Controller.type) {
188              switch (pDimRgn->LFO3Controller) {              case ::gig::eg1_ctrl_t::type_none: // no controller defined
189                  case ::gig::lfo3_ctrl_internal:                  eg1controllervalue = 0;
190                      lfo3_internal_depth  = pDimRgn->LFO3InternalDepth;                  break;
191                      pLFO3->ExtController = 0; // no external controller              case ::gig::eg1_ctrl_t::type_channelaftertouch:
192                      bLFO3Enabled         = (lfo3_internal_depth > 0);                  eg1controllervalue = GetGigEngineChannel()->ControllerTable[128];
193                      break;                  break;
194                  case ::gig::lfo3_ctrl_modwheel:              case ::gig::eg1_ctrl_t::type_velocity:
195                      lfo3_internal_depth  = 0;                  eg1controllervalue = MIDIKeyVelocity;
196                      pLFO3->ExtController = 1; // MIDI controller 1                  break;
197                      bLFO3Enabled         = (pDimRgn->LFO3ControlDepth > 0);              case ::gig::eg1_ctrl_t::type_controlchange: // MIDI control change controller
198                      break;                  eg1controllervalue = GetGigEngineChannel()->ControllerTable[pRegion->EG1Controller.controller_number];
199                  case ::gig::lfo3_ctrl_aftertouch:                  break;
                     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,  
                                              lfo3_internal_depth,  
                                              pDimRgn->LFO3ControlDepth,  
                                              pEngineChannel->ControllerTable[pLFO3->ExtController],  
                                              false,  
                                              pEngine->SampleRate,  
                                              Delay);  
200          }          }
201            if (pRegion->EG1ControllerInvert) eg1controllervalue = 127 - eg1controllervalue;
202    
203            return eg1controllervalue;
204        }
205    
206          #if CONFIG_FORCE_FILTER      Voice::EGInfo Voice::CalculateEG1ControllerInfluence(double eg1ControllerValue) {
207          const bool bUseFilter = true;          EGInfo eg;
208          #else // use filter only if instrument file told so          // (eg1attack is different from the others)
209          const bool bUseFilter = pDimRgn->VCFEnabled;          if (pRegion->EG1Attack < 1e-8 && // attack in gig == 0
210          #endif // CONFIG_FORCE_FILTER              (pRegion->EG1ControllerAttackInfluence == 0 ||
211          SYNTHESIS_MODE_SET_FILTER(SynthesisMode, bUseFilter);               eg1ControllerValue <= 10)) { // strange GSt special case
212          if (bUseFilter) {              eg.Attack = 0; // this will force the attack to be 0 in the call to EG1.trigger
213              #ifdef CONFIG_OVERRIDE_CUTOFF_CTRL          } else {
214              VCFCutoffCtrl.controller = CONFIG_OVERRIDE_CUTOFF_CTRL;              eg.Attack  = (pRegion->EG1ControllerAttackInfluence)  ?
215              #else // use the one defined in the instrument file                  1 + 0.031 * (double) (pRegion->EG1ControllerAttackInfluence == 1 ?
216              switch (pDimRgn->VCFCutoffController) {                                        1 : 1 << pRegion->EG1ControllerAttackInfluence) * eg1ControllerValue : 1.0;
217                  case ::gig::vcf_cutoff_ctrl_modwheel:          }
218                      VCFCutoffCtrl.controller = 1;          eg.Decay   = (pRegion->EG1ControllerDecayInfluence)   ? 1 + 0.00775 * (double) (1 << pRegion->EG1ControllerDecayInfluence)   * eg1ControllerValue : 1.0;
219                      break;          eg.Release = (pRegion->EG1ControllerReleaseInfluence) ? 1 + 0.00775 * (double) (1 << pRegion->EG1ControllerReleaseInfluence) * eg1ControllerValue : 1.0;
220                  case ::gig::vcf_cutoff_ctrl_effect1:  
221                      VCFCutoffCtrl.controller = 12;          return eg;
222                      break;      }
223                  case ::gig::vcf_cutoff_ctrl_effect2:  
224                      VCFCutoffCtrl.controller = 13;      double Voice::GetEG2ControllerValue(uint8_t MIDIKeyVelocity) {
225                      break;          double eg2controllervalue = 0;
226                  case ::gig::vcf_cutoff_ctrl_breath:          switch (pRegion->EG2Controller.type) {
227                      VCFCutoffCtrl.controller = 2;              case ::gig::eg2_ctrl_t::type_none: // no controller defined
228                      break;                  eg2controllervalue = 0;
229                  case ::gig::vcf_cutoff_ctrl_foot:                  break;
230                      VCFCutoffCtrl.controller = 4;              case ::gig::eg2_ctrl_t::type_channelaftertouch:
231                      break;                  eg2controllervalue = GetGigEngineChannel()->ControllerTable[128];
232                  case ::gig::vcf_cutoff_ctrl_sustainpedal:                  break;
233                      VCFCutoffCtrl.controller = 64;              case ::gig::eg2_ctrl_t::type_velocity:
234                      break;                  eg2controllervalue = MIDIKeyVelocity;
235                  case ::gig::vcf_cutoff_ctrl_softpedal:                  break;
236                      VCFCutoffCtrl.controller = 67;              case ::gig::eg2_ctrl_t::type_controlchange: // MIDI control change controller
237                      break;                  eg2controllervalue = GetGigEngineChannel()->ControllerTable[pRegion->EG2Controller.controller_number];
238                  case ::gig::vcf_cutoff_ctrl_genpurpose7:                  break;
239                      VCFCutoffCtrl.controller = 82;          }
240                      break;          if (pRegion->EG2ControllerInvert) eg2controllervalue = 127 - eg2controllervalue;
                 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  
241    
242              #ifndef CONFIG_OVERRIDE_FILTER_TYPE          return eg2controllervalue;
243              FilterLeft.SetType(pDimRgn->VCFType);      }
             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;  
244    
245              int cvalue;      Voice::EGInfo Voice::CalculateEG2ControllerInfluence(double eg2ControllerValue) {
246              if (VCFCutoffCtrl.controller) {          EGInfo eg;
247                  cvalue = pEngineChannel->ControllerTable[VCFCutoffCtrl.controller];          eg.Attack  = (pRegion->EG2ControllerAttackInfluence)  ? 1 + 0.00775 * (double) (1 << pRegion->EG2ControllerAttackInfluence)  * eg2ControllerValue : 1.0;
248                  if (pDimRgn->VCFCutoffControllerInvert) cvalue = 127 - cvalue;          eg.Decay   = (pRegion->EG2ControllerDecayInfluence)   ? 1 + 0.00775 * (double) (1 << pRegion->EG2ControllerDecayInfluence)   * eg2ControllerValue : 1.0;
249                  if (cvalue < pDimRgn->VCFVelocityScale) cvalue = pDimRgn->VCFVelocityScale;          eg.Release = (pRegion->EG2ControllerReleaseInfluence) ? 1 + 0.00775 * (double) (1 << pRegion->EG2ControllerReleaseInfluence) * eg2ControllerValue : 1.0;
             }  
             else {  
                 cvalue = pDimRgn->VCFCutoff;  
             }  
             cutoff *= float(cvalue) * 0.00787402f; // (1 / 127)  
             if (cutoff > 1.0) cutoff = 1.0;  
             cutoff = exp(cutoff * FILTER_CUTOFF_COEFF) * CONFIG_FILTER_CUTOFF_MIN;  
   
             // 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)  
250    
251              VCFCutoffCtrl.fvalue    = cutoff - CONFIG_FILTER_CUTOFF_MIN;          return eg;
252              VCFResonanceCtrl.fvalue = resonance;      }
253    
254              FilterUpdateCounter = -1;      void Voice::InitLFO1() {
255          }          uint16_t lfo1_internal_depth;
256          else {          switch (pRegion->LFO1Controller) {
257              VCFCutoffCtrl.controller    = 0;              case ::gig::lfo1_ctrl_internal:
258              VCFResonanceCtrl.controller = 0;                  lfo1_internal_depth  = pRegion->LFO1InternalDepth;
259                    pLFO1->ExtController = 0; // no external controller
260                    bLFO1Enabled         = (lfo1_internal_depth > 0);
261                    break;
262                case ::gig::lfo1_ctrl_modwheel:
263                    lfo1_internal_depth  = 0;
264                    pLFO1->ExtController = 1; // MIDI controller 1
265                    bLFO1Enabled         = (pRegion->LFO1ControlDepth > 0);
266                    break;
267                case ::gig::lfo1_ctrl_breath:
268                    lfo1_internal_depth  = 0;
269                    pLFO1->ExtController = 2; // MIDI controller 2
270                    bLFO1Enabled         = (pRegion->LFO1ControlDepth > 0);
271                    break;
272                case ::gig::lfo1_ctrl_internal_modwheel:
273                    lfo1_internal_depth  = pRegion->LFO1InternalDepth;
274                    pLFO1->ExtController = 1; // MIDI controller 1
275                    bLFO1Enabled         = (lfo1_internal_depth > 0 || pRegion->LFO1ControlDepth > 0);
276                    break;
277                case ::gig::lfo1_ctrl_internal_breath:
278                    lfo1_internal_depth  = pRegion->LFO1InternalDepth;
279                    pLFO1->ExtController = 2; // MIDI controller 2
280                    bLFO1Enabled         = (lfo1_internal_depth > 0 || pRegion->LFO1ControlDepth > 0);
281                    break;
282                default:
283                    lfo1_internal_depth  = 0;
284                    pLFO1->ExtController = 0; // no external controller
285                    bLFO1Enabled         = false;
286            }
287            if (bLFO1Enabled) {
288                pLFO1->trigger(fromGigLfoWave(pRegion->LFO1WaveForm),
289                               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                               lfo1_internal_depth,
293                               pRegion->LFO1ControlDepth,
294                               pRegion->LFO1FlipPhase,
295                               pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
296                pLFO1->updateByMIDICtrlValue(pLFO1->ExtController ? GetGigEngineChannel()->ControllerTable[pLFO1->ExtController] : 0);
297                pLFO1->setScriptDepthFactor(
298                    pNote->Override.AmpLFODepth.Value,
299                    pNote->Override.AmpLFODepth.Final
300                );
301                if (pNote->Override.AmpLFOFreq.isFinal())
302                    pLFO1->setScriptFrequencyFinal(
303                        pNote->Override.AmpLFOFreq.Value, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE
304                    );
305                else
306                    pLFO1->setScriptFrequencyFactor(
307                        pNote->Override.AmpLFOFreq.Value, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE
308                    );
309          }          }
310        }
311    
312          return 0; // success      void Voice::InitLFO2() {
313            uint16_t lfo2_internal_depth;
314            switch (pRegion->LFO2Controller) {
315                case ::gig::lfo2_ctrl_internal:
316                    lfo2_internal_depth  = pRegion->LFO2InternalDepth;
317                    pLFO2->ExtController = 0; // no external controller
318                    bLFO2Enabled         = (lfo2_internal_depth > 0);
319                    break;
320                case ::gig::lfo2_ctrl_modwheel:
321                    lfo2_internal_depth  = 0;
322                    pLFO2->ExtController = 1; // MIDI controller 1
323                    bLFO2Enabled         = (pRegion->LFO2ControlDepth > 0);
324                    break;
325                case ::gig::lfo2_ctrl_foot:
326                    lfo2_internal_depth  = 0;
327                    pLFO2->ExtController = 4; // MIDI controller 4
328                    bLFO2Enabled         = (pRegion->LFO2ControlDepth > 0);
329                    break;
330                case ::gig::lfo2_ctrl_internal_modwheel:
331                    lfo2_internal_depth  = pRegion->LFO2InternalDepth;
332                    pLFO2->ExtController = 1; // MIDI controller 1
333                    bLFO2Enabled         = (lfo2_internal_depth > 0 || pRegion->LFO2ControlDepth > 0);
334                    break;
335                case ::gig::lfo2_ctrl_internal_foot:
336                    lfo2_internal_depth  = pRegion->LFO2InternalDepth;
337                    pLFO2->ExtController = 4; // MIDI controller 4
338                    bLFO2Enabled         = (lfo2_internal_depth > 0 || pRegion->LFO2ControlDepth > 0);
339                    break;
340                default:
341                    lfo2_internal_depth  = 0;
342                    pLFO2->ExtController = 0; // no external controller
343                    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::InitLFO3() {
367       *  Renders the audio data for this voice for the current audio fragment.          uint16_t lfo3_internal_depth;
368       *  The sample input data can either come from RAM (cached sample or sample          switch (pRegion->LFO3Controller) {
369       *  part) or directly from disk. The output signal will be rendered by              case ::gig::lfo3_ctrl_internal:
370       *  resampling / interpolation. If this voice is a disk streaming voice and                  lfo3_internal_depth  = pRegion->LFO3InternalDepth;
371       *  the voice completely played back the cached RAM part of the sample, it                  pLFO3->ExtController = 0; // no external controller
372       *  will automatically switch to disk playback for the next RenderAudio()                  bLFO3Enabled         = (lfo3_internal_depth > 0);
373       *  call.                  break;
374       *              case ::gig::lfo3_ctrl_modwheel:
375       *  @param Samples - number of samples to be rendered in this audio fragment cycle                  lfo3_internal_depth  = 0;
376       */                  pLFO3->ExtController = 1; // MIDI controller 1
377      void Voice::Render(uint Samples) {                  bLFO3Enabled         = (pRegion->LFO3ControlDepth > 0);
378                    break;
379          // select default values for synthesis mode bits              case ::gig::lfo3_ctrl_aftertouch:
380          SYNTHESIS_MODE_SET_INTERPOLATE(SynthesisMode, (PitchBase * PitchBend) != 1.0f);                  lfo3_internal_depth  = 0;
381          SYNTHESIS_MODE_SET_CONSTPITCH(SynthesisMode, true);                  pLFO3->ExtController = CTRL_TABLE_IDX_AFTERTOUCH;
382          SYNTHESIS_MODE_SET_LOOP(SynthesisMode, false);                  bLFO3Enabled         = true;
383                    break;
384          // Reset the synthesis parameter matrix              case ::gig::lfo3_ctrl_internal_modwheel:
385                    lfo3_internal_depth  = pRegion->LFO3InternalDepth;
386          #if CONFIG_PROCESS_MUTED_CHANNELS                  pLFO3->ExtController = 1; // MIDI controller 1
387          pEngine->ResetSynthesisParameters(Event::destination_vca, this->Volume * this->CrossfadeVolume * (pEngineChannel->GetMute() ? 0 : pEngineChannel->GlobalVolume));                  bLFO3Enabled         = (lfo3_internal_depth > 0 || pRegion->LFO3ControlDepth > 0);
388          #else                  break;
389          pEngine->ResetSynthesisParameters(Event::destination_vca, this->Volume * this->CrossfadeVolume * pEngineChannel->GlobalVolume);              case ::gig::lfo3_ctrl_internal_aftertouch:
390          #endif                  lfo3_internal_depth  = pRegion->LFO3InternalDepth;
391          pEngine->ResetSynthesisParameters(Event::destination_vco, this->PitchBase);                  pLFO3->ExtController = CTRL_TABLE_IDX_AFTERTOUCH;
392          pEngine->ResetSynthesisParameters(Event::destination_vcfc, VCFCutoffCtrl.fvalue);                  bLFO3Enabled         = (lfo3_internal_depth > 0 || pRegion->LFO3ControlDepth > 0);
393          pEngine->ResetSynthesisParameters(Event::destination_vcfr, VCFResonanceCtrl.fvalue);                  break;
394                default:
395          // Apply events to the synthesis parameter matrix                  lfo3_internal_depth  = 0;
396          ProcessEvents(Samples);                  pLFO3->ExtController = 0; // no external controller
397                    bLFO3Enabled         = false;
         // Let all modulators write their parameter changes to the synthesis parameter matrix for the current audio fragment  
         pEG1->Process(Samples, pEngineChannel->pMIDIKeyInfo[MIDIKey].pEvents, itTriggerEvent, this->Pos, this->PitchBase * this->PitchBend, itKillEvent);  
         pEG2->Process(Samples, pEngineChannel->pMIDIKeyInfo[MIDIKey].pEvents, itTriggerEvent, this->Pos, this->PitchBase * this->PitchBend);  
         if (pEG3->Process(Samples)) { // if pitch EG is active  
             SYNTHESIS_MODE_SET_INTERPOLATE(SynthesisMode, true);  
             SYNTHESIS_MODE_SET_CONSTPITCH(SynthesisMode, false);  
398          }          }
         if (bLFO1Enabled) pLFO1->Process(Samples);  
         if (bLFO2Enabled) pLFO2->Process(Samples);  
399          if (bLFO3Enabled) {          if (bLFO3Enabled) {
400              if (pLFO3->Process(Samples)) { // if pitch LFO modulation is active              pLFO3->trigger(fromGigLfoWave(pRegion->LFO3WaveForm),
401                  SYNTHESIS_MODE_SET_INTERPOLATE(SynthesisMode, true);                             pRegion->LFO3Frequency,
402                  SYNTHESIS_MODE_SET_CONSTPITCH(SynthesisMode, false);                             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          if (SYNTHESIS_MODE_GET_FILTER(SynthesisMode))      float Voice::CalculateCutoffBase(uint8_t MIDIKeyVelocity) {
421              CalculateBiquadParameters(Samples); // calculate the final biquad filter parameters          float cutoff = pRegion->GetVelocityCutoff(MIDIKeyVelocity);
422            if (pRegion->VCFKeyboardTracking) {
423          switch (this->PlaybackState) {              cutoff *= RTMath::CentsToFreqRatioUnlimited((MIDIKey() - pRegion->VCFKeyboardTrackingBreakpoint) * 100);
424            }
425              case playback_state_init:          return cutoff;
426                  this->PlaybackState = playback_state_ram; // we always start playback from RAM cache and switch then to disk if needed      }
427                  // no break - continue with playback_state_ram  
428        float Voice::CalculateFinalCutoff(float cutoffBase) {
429              case playback_state_ram: {          int cvalue;
430                      if (RAMLoop) SYNTHESIS_MODE_SET_LOOP(SynthesisMode, true); // enable looping          if (VCFCutoffCtrl.controller) {
431                cvalue = GetGigEngineChannel()->ControllerTable[VCFCutoffCtrl.controller];
432                      // render current fragment              if (pRegion->VCFCutoffControllerInvert) cvalue = 127 - cvalue;
433                      Synthesize(Samples, (sample_t*) pSample->GetCache().pStart, Delay);              // VCFVelocityScale in this case means Minimum cutoff
434                if (cvalue < pRegion->VCFVelocityScale) cvalue = pRegion->VCFVelocityScale;
                     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);  
                         RealSampleWordsLeftToRead = -1; // -1 means no silence has been added yet  
                     }  
   
                     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) 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 (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 synthesis event lists (except VCO, as VCO events apply channel wide currently)  
         pEngineChannel->pSynthesisEvents[Event::destination_vca]->clear();  
         pEngineChannel->pSynthesisEvents[Event::destination_vcfc]->clear();  
         pEngineChannel->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 = pEngineChannel->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) {  
                     *pEngineChannel->pSynthesisEvents[Event::destination_vcfc]->allocAppend() = *itCCEvent;  
                 }  
                 if (itCCEvent->Param.CC.Controller == VCFResonanceCtrl.controller) {  
                     *pEngineChannel->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  
                     *pEngineChannel->pSynthesisEvents[Event::destination_vca]->allocAppend() = *itCCEvent;  
                 }  
             }  
   
             ++itCCEvent;  
435          }          }
436            else {
437                cvalue = pRegion->VCFCutoff;
         // process pitch events  
         {  
             RTList<Event>* pVCOEventList = pEngineChannel->pSynthesisEvents[Event::destination_vco];  
             RTList<Event>::Iterator itVCOEvent = pVCOEventList->first();  
             if (Delay) { // skip events that happened before this voice was triggered  
                 while (itVCOEvent && itVCOEvent->FragmentPos() <= Delay) ++itVCOEvent;  
             }  
             // apply old pitchbend value until first pitch event occurs  
             if (this->PitchBend != 1.0) {  
                 uint end = (itVCOEvent) ? itVCOEvent->FragmentPos() : Samples;  
                 for (uint i = Delay; i < end; i++) {  
                     pEngine->pSynthesisParameters[Event::destination_vco][i] *= this->PitchBend;  
                 }  
             }  
             float pitch;  
             while (itVCOEvent) {  
                 RTList<Event>::Iterator itNextVCOEvent = itVCOEvent;  
                 ++itNextVCOEvent;  
   
                 // calculate the influence length of this event (in sample points)  
                 uint end = (itNextVCOEvent) ? itNextVCOEvent->FragmentPos() : Samples;  
   
                 pitch = RTMath::CentsToFreqRatio(((double) itVCOEvent->Param.Pitch.Pitch / 8192.0) * 200.0); // +-two semitones = +-200 cents  
   
                 // apply pitch value to the pitch parameter sequence  
                 for (uint i = itVCOEvent->FragmentPos(); i < end; i++) {  
                     pEngine->pSynthesisParameters[Event::destination_vco][i] *= pitch;  
                 }  
   
                 itVCOEvent = itNextVCOEvent;  
             }  
             if (!pVCOEventList->isEmpty()) {  
                 this->PitchBend = pitch;  
                 SYNTHESIS_MODE_SET_INTERPOLATE(SynthesisMode, true);  
                 SYNTHESIS_MODE_SET_CONSTPITCH(SynthesisMode, false);  
             }  
438          }          }
439            float fco = cutoffBase * float(cvalue);
440            if (fco > 127.0f) fco = 127.0f;
441    
442          // process volume / attenuation events (TODO: we only handle and _expect_ crossfade events here ATM !)          return fco;
443          {      }
             RTList<Event>* pVCAEventList = pEngineChannel->pSynthesisEvents[Event::destination_vca];  
             RTList<Event>::Iterator itVCAEvent = pVCAEventList->first();  
             if (Delay) { // skip events that happened before this voice was triggered  
                 while (itVCAEvent && itVCAEvent->FragmentPos() <= Delay) ++itVCAEvent;  
             }  
             float crossfadevolume;  
             while (itVCAEvent) {  
                 RTList<Event>::Iterator itNextVCAEvent = itVCAEvent;  
                 ++itNextVCAEvent;  
   
                 // calculate the influence length of this event (in sample points)  
                 uint end = (itNextVCAEvent) ? itNextVCAEvent->FragmentPos() : Samples;  
   
                 crossfadevolume = CrossfadeAttenuation(itVCAEvent->Param.CC.Value);  
   
                 #if CONFIG_PROCESS_MUTED_CHANNELS  
                 float effective_volume = crossfadevolume * this->Volume * (pEngineChannel->GetMute() ? 0 : pEngineChannel->GlobalVolume);  
                 #else  
                 float effective_volume = crossfadevolume * this->Volume * pEngineChannel->GlobalVolume;  
                 #endif  
   
                 // apply volume value to the volume parameter sequence  
                 for (uint i = itVCAEvent->FragmentPos(); i < end; i++) {  
                     pEngine->pSynthesisParameters[Event::destination_vca][i] = effective_volume;  
                 }  
444    
445                  itVCAEvent = itNextVCAEvent;      uint8_t Voice::GetVCFCutoffCtrl() {
446              }          uint8_t ctrl;
447              if (!pVCAEventList->isEmpty()) this->CrossfadeVolume = crossfadevolume;          switch (pRegion->VCFCutoffController) {
448                case ::gig::vcf_cutoff_ctrl_modwheel:
449                    ctrl = 1;
450                    break;
451                case ::gig::vcf_cutoff_ctrl_effect1:
452                    ctrl = 12;
453                    break;
454                case ::gig::vcf_cutoff_ctrl_effect2:
455                    ctrl = 13;
456                    break;
457                case ::gig::vcf_cutoff_ctrl_breath:
458                    ctrl = 2;
459                    break;
460                case ::gig::vcf_cutoff_ctrl_foot:
461                    ctrl = 4;
462                    break;
463                case ::gig::vcf_cutoff_ctrl_sustainpedal:
464                    ctrl = 64;
465                    break;
466                case ::gig::vcf_cutoff_ctrl_softpedal:
467                    ctrl = 67;
468                    break;
469                case ::gig::vcf_cutoff_ctrl_genpurpose7:
470                    ctrl = 82;
471                    break;
472                case ::gig::vcf_cutoff_ctrl_genpurpose8:
473                    ctrl = 83;
474                    break;
475                case ::gig::vcf_cutoff_ctrl_aftertouch:
476                    ctrl = CTRL_TABLE_IDX_AFTERTOUCH;
477                    break;
478                case ::gig::vcf_cutoff_ctrl_none:
479                default:
480                    ctrl = 0;
481                    break;
482          }          }
483    
484          // process filter cutoff events          return ctrl;
485          {      }
             RTList<Event>* pCutoffEventList = pEngineChannel->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;  
   
                 int cvalue = pEngineChannel->ControllerTable[VCFCutoffCtrl.controller];  
                 if (pDimRgn->VCFCutoffControllerInvert) cvalue = 127 - cvalue;  
                 if (cvalue < pDimRgn->VCFVelocityScale) cvalue = pDimRgn->VCFVelocityScale;  
                 cutoff = CutoffBase * float(cvalue) * 0.00787402f; // (1 / 127)  
                 if (cutoff > 1.0) cutoff = 1.0;  
                 cutoff = exp(cutoff * FILTER_CUTOFF_COEFF) * CONFIG_FILTER_CUTOFF_MIN - CONFIG_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;  
                 }  
486    
487                  itCutoffEvent = itNextCutoffEvent;      uint8_t Voice::GetVCFResonanceCtrl() {
488              }          uint8_t ctrl;
489              if (!pCutoffEventList->isEmpty()) VCFCutoffCtrl.fvalue = cutoff; // needed for initialization of parameter matrix next time          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          // process filter resonance events          return ctrl;
         {  
             RTList<Event>* pResonanceEventList = pEngineChannel->pSynthesisEvents[Event::destination_vcfr];  
             RTList<Event>::Iterator itResonanceEvent = pResonanceEventList->first();  
             if (Delay) { // skip events that happened before this voice was triggered  
                 while (itResonanceEvent && itResonanceEvent->FragmentPos() <= Delay) ++itResonanceEvent;  
             }  
             while (itResonanceEvent) {  
                 RTList<Event>::Iterator itNextResonanceEvent = itResonanceEvent;  
                 ++itNextResonanceEvent;  
   
                 // calculate the influence length of this event (in sample points)  
                 uint end = (itNextResonanceEvent) ? itNextResonanceEvent->FragmentPos() : Samples;  
   
                 // convert absolute controller value to differential  
                 int ctrldelta = itResonanceEvent->Param.CC.Value - VCFResonanceCtrl.value;  
                 VCFResonanceCtrl.value = itResonanceEvent->Param.CC.Value;  
   
                 float resonancedelta = (float) ctrldelta * 0.00787f; // 0.0..1.0  
   
                 // apply cutoff frequency to the cutoff parameter sequence  
                 for (uint i = itResonanceEvent->FragmentPos(); i < end; i++) {  
                     pEngine->pSynthesisParameters[Event::destination_vcfr][i] += resonancedelta;  
                 }  
   
                 itResonanceEvent = itNextResonanceEvent;  
             }  
             if (!pResonanceEventList->isEmpty()) VCFResonanceCtrl.fvalue = pResonanceEventList->last()->Param.CC.Value * 0.00787f; // needed for initialization of parameter matrix next time  
         }  
508      }      }
509    
510      /**      void Voice::TriggerEG1(const EGInfo& egInfo, double velrelease, double velocityAttenuation, uint sampleRate, uint8_t velocity) {
511       * Calculate all necessary, final biquad filter parameters.          EG1.setStateOptions(
512       *              pRegion->EG1Options.AttackCancel,
513       * @param Samples - number of samples to be rendered in this audio fragment cycle              pRegion->EG1Options.AttackHoldCancel,
514       */              pRegion->EG1Options.Decay1Cancel,
515      void Voice::CalculateBiquadParameters(uint Samples) {              pRegion->EG1Options.Decay2Cancel,
516          biquad_param_t bqbase;              pRegion->EG1Options.ReleaseCancel
517          biquad_param_t bqmain;          );
518          float prev_cutoff = pEngine->pSynthesisParameters[Event::destination_vcfc][0];          EG1.trigger(pRegion->EG1PreAttack,
519          float prev_res    = pEngine->pSynthesisParameters[Event::destination_vcfr][0];                      (pNote && pNote->Override.Attack.isFinal()) ?
520          FilterLeft.SetParameters( &bqbase, &bqmain, prev_cutoff + CONFIG_FILTER_CUTOFF_MIN, prev_res, pEngine->SampleRate);                          pNote->Override.Attack.Value :
521          FilterRight.SetParameters(&bqbase, &bqmain, prev_cutoff + CONFIG_FILTER_CUTOFF_MIN, prev_res, pEngine->SampleRate);                          RTMath::Max(pRegion->EG1Attack, 0.0316) * egInfo.Attack,
522          pEngine->pBasicFilterParameters[0] = bqbase;                      pRegion->EG1Hold,
523          pEngine->pMainFilterParameters[0]  = bqmain;                      (pNote && pNote->Override.Decay.isFinal()) ?
524                            pNote->Override.Decay.Value :
525          float* bq;                          pRegion->EG1Decay1 * egInfo.Decay * velrelease,
526          for (int i = 1; i < Samples; i++) {                      (pNote && pNote->Override.Decay.isFinal()) ?
527              // recalculate biquad parameters if cutoff or resonance differ from previous sample point                          pNote->Override.Decay.Value :
528              if (!(i & FILTER_UPDATE_MASK)) {                          pRegion->EG1Decay2 * egInfo.Decay * velrelease,
529                  if (pEngine->pSynthesisParameters[Event::destination_vcfr][i] != prev_res ||                      pRegion->EG1InfiniteSustain,
530                      pEngine->pSynthesisParameters[Event::destination_vcfc][i] != prev_cutoff)                      (pNote && pNote->Override.Sustain.Final) ?
531                  {                          uint(pNote->Override.Sustain.Value * 1000.f) :
532                      prev_cutoff = pEngine->pSynthesisParameters[Event::destination_vcfc][i];                          pRegion->EG1Sustain * (pNote ? pNote->Override.Sustain.Value : 1.f),
533                      prev_res    = pEngine->pSynthesisParameters[Event::destination_vcfr][i];                      (pNote && pNote->Override.Release.isFinal()) ?
534                      FilterLeft.SetParameters( &bqbase, &bqmain, prev_cutoff + CONFIG_FILTER_CUTOFF_MIN, prev_res, pEngine->SampleRate);                          pNote->Override.Release.Value :
535                      FilterRight.SetParameters(&bqbase, &bqmain, prev_cutoff + CONFIG_FILTER_CUTOFF_MIN, prev_res, pEngine->SampleRate);                          RTMath::Max(pRegion->EG1Release * velrelease, 0.014) * egInfo.Release,
536                  }                      velocityAttenuation,
537              }                      sampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
538        }
539              //same as 'pEngine->pBasicFilterParameters[i] = bqbase;'  
540              bq    = (float*) &pEngine->pBasicFilterParameters[i];      void Voice::TriggerEG2(const EGInfo& egInfo, double velrelease, double velocityAttenuation, uint sampleRate, uint8_t velocity) {
541              bq[0] = bqbase.b0;          EG2.setStateOptions(
542              bq[1] = bqbase.b1;              pRegion->EG2Options.AttackCancel,
543              bq[2] = bqbase.b2;              pRegion->EG2Options.AttackHoldCancel,
544              bq[3] = bqbase.a1;              pRegion->EG2Options.Decay1Cancel,
545              bq[4] = bqbase.a2;              pRegion->EG2Options.Decay2Cancel,
546                pRegion->EG2Options.ReleaseCancel
547              // same as 'pEngine->pMainFilterParameters[i] = bqmain;'          );
548              bq    = (float*) &pEngine->pMainFilterParameters[i];          EG2.trigger(uint(RgnInfo.EG2PreAttack),
549              bq[0] = bqmain.b0;                      (pNote && pNote->Override.CutoffAttack.isFinal()) ?
550              bq[1] = bqmain.b1;                          pNote->Override.CutoffAttack.Value :
551              bq[2] = bqmain.b2;                          RgnInfo.EG2Attack * egInfo.Attack,
552              bq[3] = bqmain.a1;                      false,
553              bq[4] = bqmain.a2;                      (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;
   
     /**  
      *  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) {  
         #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  
   
         if (itTriggerEvent && itKillEvent->FragmentPos() <= itTriggerEvent->FragmentPos()) return;  
         this->itKillEvent = itKillEvent;  
622      }      }
623    
624  }} // namespace LinuxSampler::gig  }} // namespace LinuxSampler::gig
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