/[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 236 by schoenebeck, Thu Sep 9 18:44:18 2004 UTC revision 3561 by schoenebeck, Fri Aug 23 11:44:00 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    
26  #include "EGADSR.h"  #include "../../common/Features.h"
27  #include "Manipulator.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      // TODO: no support for crossfades yet      Voice::Voice() {
37            pEngine = NULL;
38      const float Voice::FILTER_CUTOFF_COEFF(CalculateFilterCutoffCoeff());          pEG1 = &EG1;
39            pEG2 = &EG2;
     const int Voice::FILTER_UPDATE_MASK(CalculateFilterUpdateMask());  
   
     float Voice::CalculateFilterCutoffCoeff() {  
         return log(FILTER_CUTOFF_MIN / FILTER_CUTOFF_MAX);  
40      }      }
41    
42      int Voice::CalculateFilterUpdateMask() {      Voice::~Voice() {
         if (FILTER_UPDATE_PERIOD <= 0) return 0;  
         int power_of_two;  
         for (power_of_two = 0; 1<<power_of_two < FILTER_UPDATE_PERIOD; power_of_two++);  
         return (1 << power_of_two) - 1;  
43      }      }
44    
45      Voice::Voice() {      EngineChannel* Voice::GetGigEngineChannel() {
46          pEngine     = NULL;          return static_cast<EngineChannel*>(pEngineChannel);
         pDiskThread = NULL;  
         Active = false;  
         pEG1   = NULL;  
         pEG2   = NULL;  
         pEG3   = NULL;  
         pVCAManipulator  = NULL;  
         pVCFCManipulator = NULL;  
         pVCOManipulator  = NULL;  
         pLFO1  = NULL;  
         pLFO2  = NULL;  
         pLFO3  = NULL;  
47      }      }
48    
49      Voice::~Voice() {      void Voice::SetEngine(LinuxSampler::Engine* pEngine) {
50          if (pEG1)  delete pEG1;          Engine* engine = static_cast<Engine*>(pEngine);
51          if (pEG2)  delete pEG2;          this->pEngine     = engine;
52          if (pEG3)  delete pEG3;          this->pDiskThread = engine->pDiskThread;
         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.  
   
         this->pDiskThread = pEngine->pDiskThread;  
53          dmsg(6,("Voice::SetEngine()\n"));          dmsg(6,("Voice::SetEngine()\n"));
54      }      }
55    
56      /**      Voice::SampleInfo Voice::GetSampleInfo() {
57       *  Initializes and triggers the voice, a disk stream will be launched if          SampleInfo si;
58       *  needed.          si.SampleRate       = pSample->SamplesPerSecond;
59       *          si.ChannelCount     = pSample->Channels;
60       *  @param pNoteOnEvent - event that caused triggering of this voice          si.FrameSize        = pSample->FrameSize;
61       *  @param PitchBend    - MIDI detune factor (-8192 ... +8191)          si.BitDepth         = pSample->BitDepth;
62       *  @param pInstrument  - points to the loaded instrument which provides sample wave(s) and articulation data          si.TotalFrameCount  = (uint)pSample->SamplesTotal;
      *  @param iLayer       - layer number this voice refers to (only if this is a layered sound of course)  
      *  @returns            0 on success, a value < 0 if something failed  
      */  
     int Voice::Trigger(Event* pNoteOnEvent, int PitchBend, ::gig::Instrument* pInstrument, int iLayer) {  
         if (!pInstrument) {  
            dmsg(1,("voice::trigger: !pInstrument\n"));  
            exit(EXIT_FAILURE);  
         }  
63    
64          Active          = true;          si.HasLoops       = pRegion->SampleLoops;
65          MIDIKey         = pNoteOnEvent->Key;          si.LoopStart      = (si.HasLoops) ? pRegion->pSampleLoops[0].LoopStart  : 0;
66          pRegion         = pInstrument->GetRegion(MIDIKey);          si.LoopLength     = (si.HasLoops) ? pRegion->pSampleLoops[0].LoopLength : 0;
67          PlaybackState   = playback_state_ram; // we always start playback from RAM cache and switch then to disk if needed          si.LoopPlayCount  = pSample->LoopPlayCount;
68          Delay           = pNoteOnEvent->FragmentPos();          si.Unpitched      = !pRegion->PitchTrack;
         pTriggerEvent   = pNoteOnEvent;  
   
         if (!pRegion) {  
             std::cerr << "gig::Voice: No Region defined for MIDI key " << MIDIKey << std::endl << std::flush;  
             Kill();  
             return -1;  
         }  
69    
70          // get current dimension values to select the right dimension region          return si;
71          //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++)  
                             pEngine->LaunchVoice(pNoteOnEvent, iNewLayer);  
                     break;  
                 case ::gig::dimension_velocity:  
                     DimValues[i] = pNoteOnEvent->Velocity;  
                     break;  
                 case ::gig::dimension_channelaftertouch:  
                     DimValues[i] = 0; //TODO: we currently ignore this dimension  
                     break;  
                 case ::gig::dimension_releasetrigger:  
                     DimValues[i] = 0; //TODO: we currently ignore this dimension  
                     break;  
                 case ::gig::dimension_keyboard:  
                     DimValues[i] = (uint) pNoteOnEvent->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]);  
   
         // get starting crossfade volume level  
         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(pNoteOnEvent->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;  
         }  
72    
73          pSample = pDimRgn->pSample; // sample won't change until the voice is finished      Voice::RegionInfo Voice::GetRegionInfo() {
74            RegionInfo ri;
75            ri.UnityNote = pRegion->UnityNote;
76            ri.FineTune  = pRegion->FineTune;
77            ri.Pan       = pRegion->Pan;
78            ri.SampleStartOffset = pRegion->SampleStartOffset;
79    
80          Pos = pDimRgn->SampleStartOffset; // offset where we should start playback of sample (0 - 2000 sample points)          ri.EG2PreAttack        = pRegion->EG2PreAttack;
81            ri.EG2Attack           = pRegion->EG2Attack;
82            ri.EG2Decay1           = pRegion->EG2Decay1;
83            ri.EG2Decay2           = pRegion->EG2Decay2;
84            ri.EG2Sustain          = pRegion->EG2Sustain;
85            ri.EG2InfiniteSustain  = pRegion->EG2InfiniteSustain;
86            ri.EG2Release          = pRegion->EG2Release;
87    
88          // Check if the sample needs disk streaming or is too short for that          ri.EG3Attack     = pRegion->EG3Attack;
89          long cachedsamples = pSample->GetCache().Size / pSample->FrameSize;          ri.EG3Depth      = pRegion->EG3Depth;
90          DiskVoice          = cachedsamples < pSample->SamplesTotal;          ri.VCFEnabled    = pRegion->VCFEnabled;
91            ri.VCFType       = Filter::vcf_type_t(pRegion->VCFType);
92            ri.VCFResonance  = pRegion->VCFResonance;
93    
94          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)  
95    
96              // check if there's a loop defined which completely fits into the cached (RAM) part of the sample          return ri;
97              if (pSample->Loops && pSample->LoopEnd <= MaxRAMPos) {      }
                 RAMLoop        = true;  
                 LoopCyclesLeft = pSample->LoopPlayCount;  
             }  
             else RAMLoop = false;  
   
             if (pDiskThread->OrderNewStream(&DiskStreamRef, pSample, MaxRAMPos, !RAMLoop) < 0) {  
                 dmsg(1,("Disk stream order failed!\n"));  
                 Kill();  
                 return -1;  
             }  
             dmsg(4,("Disk voice launched (cached samples: %d, total Samples: %d, MaxRAMPos: %d, RAMLooping: %s)\n", cachedsamples, pSample->SamplesTotal, MaxRAMPos, (RAMLoop) ? "yes" : "no"));  
         }  
         else { // RAM only voice  
             MaxRAMPos = cachedsamples;  
             if (pSample->Loops) {  
                 RAMLoop        = true;  
                 LoopCyclesLeft = pSample->LoopPlayCount;  
             }  
             else RAMLoop = false;  
             dmsg(4,("RAM only voice launched (Looping: %s)\n", (RAMLoop) ? "yes" : "no"));  
         }  
98    
99        Voice::InstrumentInfo Voice::GetInstrumentInfo() {
100            InstrumentInfo ii;
101            ii.FineTune = GetGigEngineChannel()->pInstrument->FineTune;
102            ii.PitchbendRange = GetGigEngineChannel()->pInstrument->PitchbendRange;
103    
104          // calculate initial pitch value          return ii;
105          {      }
             double pitchbasecents = pDimRgn->FineTune * 10;  
             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  
         }  
106    
107        double Voice::GetSampleAttenuation() {
108            return pRegion->SampleAttenuation;
109        }
110    
111          Volume = pDimRgn->GetVelocityAttenuation(pNoteOnEvent->Velocity) / 32768.0f; // we downscale by 32768 to convert from int16 value range to DSP value range (which is -1.0..1.0)      double Voice::GetVelocityAttenuation(uint8_t MIDIKeyVelocity) {
112            return pRegion->GetVelocityAttenuation(MIDIKeyVelocity);
113        }
114    
115        double Voice::GetVelocityRelease(uint8_t MIDIKeyVelocity) {
116            return pRegion->GetVelocityRelease(MIDIKeyVelocity);
117        }
118    
119          // setup EG 1 (VCA EG)      void Voice::ProcessCCEvent(RTList<Event>::Iterator& itEvent) {
120          {          if (itEvent->Type == Event::type_control_change && itEvent->Param.CC.Controller) { // if (valid) MIDI control change event
121              // get current value of EG1 controller              if (pRegion->AttenuationController.type == ::gig::attenuation_ctrl_t::type_controlchange &&
122              double eg1controllervalue;                  itEvent->Param.CC.Controller == pRegion->AttenuationController.controller_number) {
123              switch (pDimRgn->EG1Controller.type) {                  CrossfadeSmoother.update(AbstractEngine::CrossfadeCurve[CrossfadeAttenuation(itEvent->Param.CC.Value)]);
                 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 = pNoteOnEvent->Velocity;  
                     break;  
                 case ::gig::eg1_ctrl_t::type_controlchange: // MIDI control change controller  
                     eg1controllervalue = pEngine->ControllerTable[pDimRgn->EG1Controller.controller_number];  
                     break;  
124              }              }
             if (pDimRgn->EG1ControllerInvert) eg1controllervalue = 127 - eg1controllervalue;  
   
             // calculate influence of EG1 controller on EG1's parameters (TODO: needs to be fine tuned)  
             double eg1attack  = (pDimRgn->EG1ControllerAttackInfluence)  ? 0.0001 * (double) (1 << pDimRgn->EG1ControllerAttackInfluence)  * eg1controllervalue : 0.0;  
             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);  
125          }          }
126        }
127    
128        void Voice::ProcessChannelPressureEvent(RTList<Event>::Iterator& itEvent) {
129      #if ENABLE_FILTER          if (itEvent->Type == Event::type_channel_pressure) { // if (valid) MIDI channel pressure (aftertouch) event
130          // setup EG 2 (VCF Cutoff EG)              if (pRegion->AttenuationController.type == ::gig::attenuation_ctrl_t::type_channelaftertouch) {
131          {                  CrossfadeSmoother.update(AbstractEngine::CrossfadeCurve[CrossfadeAttenuation(itEvent->Param.ChannelPressure.Value)]);
             // get current value of EG2 controller  
             double eg2controllervalue;  
             switch (pDimRgn->EG2Controller.type) {  
                 case ::gig::eg2_ctrl_t::type_none: // no controller defined  
                     eg2controllervalue = 0;  
                     break;  
                 case ::gig::eg2_ctrl_t::type_channelaftertouch:  
                     eg2controllervalue = 0; // TODO: aftertouch not yet supported  
                     break;  
                 case ::gig::eg2_ctrl_t::type_velocity:  
                     eg2controllervalue = pNoteOnEvent->Velocity;  
                     break;  
                 case ::gig::eg2_ctrl_t::type_controlchange: // MIDI control change controller  
                     eg2controllervalue = pEngine->ControllerTable[pDimRgn->EG2Controller.controller_number];  
                     break;  
132              }              }
             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);  
133          }          }
134      #endif // ENABLE_FILTER      }
135    
136        void Voice::ProcessPolyphonicKeyPressureEvent(RTList<Event>::Iterator& itEvent) {
137            // Not used so far
138        }
139    
140          // setup EG 3 (VCO EG)      void Voice::ProcessCutoffEvent(RTList<Event>::Iterator& itEvent) {
141          {          int ccvalue = itEvent->Param.CC.Value;
142            double eg3depth = RTMath::CentsToFreqRatio(pDimRgn->EG3Depth);          if (VCFCutoffCtrl.value == ccvalue) return;
143            pEG3->Trigger(eg3depth, pDimRgn->EG3Attack, Delay);          VCFCutoffCtrl.value = ccvalue;
144          }          if (pRegion->VCFCutoffControllerInvert)  ccvalue = 127 - ccvalue;
145            if (ccvalue < pRegion->VCFVelocityScale) ccvalue = pRegion->VCFVelocityScale;
146            float cutoff = CutoffBase * float(ccvalue);
147            if (cutoff > 127.0f) cutoff = 127.0f;
148    
149            VCFCutoffCtrl.fvalue = cutoff; // needed for initialization of fFinalCutoff next time
150            fFinalCutoff = cutoff;
151        }
152    
153          // setup LFO 1 (VCA LFO)      double Voice::CalculateCrossfadeVolume(uint8_t MIDIKeyVelocity) {
154          {          float crossfadeVolume;
155              uint16_t lfo1_internal_depth;          switch (pRegion->AttenuationController.type) {
156              switch (pDimRgn->LFO1Controller) {              case ::gig::attenuation_ctrl_t::type_channelaftertouch:
157                  case ::gig::lfo1_ctrl_internal:                  crossfadeVolume = Engine::CrossfadeCurve[CrossfadeAttenuation(GetGigEngineChannel()->ControllerTable[128])];
158                      lfo1_internal_depth  = pDimRgn->LFO1InternalDepth;                  break;
159                      pLFO1->ExtController = 0; // no external controller              case ::gig::attenuation_ctrl_t::type_velocity:
160                      break;                  crossfadeVolume = Engine::CrossfadeCurve[CrossfadeAttenuation(MIDIKeyVelocity)];
161                  case ::gig::lfo1_ctrl_modwheel:                  break;
162                      lfo1_internal_depth  = 0;              case ::gig::attenuation_ctrl_t::type_controlchange: //FIXME: currently not sample accurate
163                      pLFO1->ExtController = 1; // MIDI controller 1                  crossfadeVolume = Engine::CrossfadeCurve[CrossfadeAttenuation(GetGigEngineChannel()->ControllerTable[pRegion->AttenuationController.controller_number])];
164                      break;                  break;
165                  case ::gig::lfo1_ctrl_breath:              case ::gig::attenuation_ctrl_t::type_none: // no crossfade defined
166                      lfo1_internal_depth  = 0;              default:
167                      pLFO1->ExtController = 2; // MIDI controller 2                  crossfadeVolume = 1.0f;
                     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);  
168          }          }
169    
170      #if ENABLE_FILTER          return crossfadeVolume;
171          // setup LFO 2 (VCF Cutoff LFO)      }
         {  
             uint16_t lfo2_internal_depth;  
             switch (pDimRgn->LFO2Controller) {  
                 case ::gig::lfo2_ctrl_internal:  
                     lfo2_internal_depth  = pDimRgn->LFO2InternalDepth;  
                     pLFO2->ExtController = 0; // no external controller  
                     break;  
                 case ::gig::lfo2_ctrl_modwheel:  
                     lfo2_internal_depth  = 0;  
                     pLFO2->ExtController = 1; // MIDI controller 1  
                     break;  
                 case ::gig::lfo2_ctrl_foot:  
                     lfo2_internal_depth  = 0;  
                     pLFO2->ExtController = 4; // MIDI controller 4  
                     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);  
         }  
     #endif // ENABLE_FILTER  
172    
173          // setup LFO 3 (VCO LFO)      double Voice::GetEG1ControllerValue(uint8_t MIDIKeyVelocity) {
174          {          double eg1controllervalue = 0;
175              uint16_t lfo3_internal_depth;          switch (pRegion->EG1Controller.type) {
176              switch (pDimRgn->LFO3Controller) {              case ::gig::eg1_ctrl_t::type_none: // no controller defined
177                  case ::gig::lfo3_ctrl_internal:                  eg1controllervalue = 0;
178                      lfo3_internal_depth  = pDimRgn->LFO3InternalDepth;                  break;
179                      pLFO3->ExtController = 0; // no external controller              case ::gig::eg1_ctrl_t::type_channelaftertouch:
180                      break;                  eg1controllervalue = GetGigEngineChannel()->ControllerTable[128];
181                  case ::gig::lfo3_ctrl_modwheel:                  break;
182                      lfo3_internal_depth  = 0;              case ::gig::eg1_ctrl_t::type_velocity:
183                      pLFO3->ExtController = 1; // MIDI controller 1                  eg1controllervalue = MIDIKeyVelocity;
184                      break;                  break;
185                  case ::gig::lfo3_ctrl_aftertouch:              case ::gig::eg1_ctrl_t::type_controlchange: // MIDI control change controller
186                      lfo3_internal_depth  = 0;                  eg1controllervalue = GetGigEngineChannel()->ControllerTable[pRegion->EG1Controller.controller_number];
187                      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);  
188          }          }
189            if (pRegion->EG1ControllerInvert) eg1controllervalue = 127 - eg1controllervalue;
190    
191      #if ENABLE_FILTER          return eg1controllervalue;
192          #if FORCE_FILTER_USAGE      }
         FilterLeft.Enabled = FilterRight.Enabled = true;  
         #else // use filter only if instrument file told so  
         FilterLeft.Enabled = FilterRight.Enabled = pDimRgn->VCFEnabled;  
         #endif // FORCE_FILTER_USAGE  
         if (pDimRgn->VCFEnabled) {  
             #ifdef OVERRIDE_FILTER_CUTOFF_CTRL  
             VCFCutoffCtrl.controller = OVERRIDE_FILTER_CUTOFF_CTRL;  
             #else // use the one defined in the instrument file  
             switch (pDimRgn->VCFCutoffController) {  
                 case ::gig::vcf_cutoff_ctrl_modwheel:  
                     VCFCutoffCtrl.controller = 1;  
                     break;  
                 case ::gig::vcf_cutoff_ctrl_effect1:  
                     VCFCutoffCtrl.controller = 12;  
                     break;  
                 case ::gig::vcf_cutoff_ctrl_effect2:  
                     VCFCutoffCtrl.controller = 13;  
                     break;  
                 case ::gig::vcf_cutoff_ctrl_breath:  
                     VCFCutoffCtrl.controller = 2;  
                     break;  
                 case ::gig::vcf_cutoff_ctrl_foot:  
                     VCFCutoffCtrl.controller = 4;  
                     break;  
                 case ::gig::vcf_cutoff_ctrl_sustainpedal:  
                     VCFCutoffCtrl.controller = 64;  
                     break;  
                 case ::gig::vcf_cutoff_ctrl_softpedal:  
                     VCFCutoffCtrl.controller = 67;  
                     break;  
                 case ::gig::vcf_cutoff_ctrl_genpurpose7:  
                     VCFCutoffCtrl.controller = 82;  
                     break;  
                 case ::gig::vcf_cutoff_ctrl_genpurpose8:  
                     VCFCutoffCtrl.controller = 83;  
                     break;  
                 case ::gig::vcf_cutoff_ctrl_aftertouch: //TODO: not implemented yet  
                 case ::gig::vcf_cutoff_ctrl_none:  
                 default:  
                     VCFCutoffCtrl.controller = 0;  
                     break;  
             }  
             #endif // OVERRIDE_FILTER_CUTOFF_CTRL  
   
             #ifdef OVERRIDE_FILTER_RES_CTRL  
             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  
193    
194              #ifndef OVERRIDE_FILTER_TYPE      Voice::EGInfo Voice::CalculateEG1ControllerInfluence(double eg1ControllerValue) {
195              FilterLeft.SetType(pDimRgn->VCFType);          EGInfo eg;
196              FilterRight.SetType(pDimRgn->VCFType);          // (eg1attack is different from the others)
197              #else // override filter type          if (pRegion->EG1Attack < 1e-8 && // attack in gig == 0
198              FilterLeft.SetType(OVERRIDE_FILTER_TYPE);              (pRegion->EG1ControllerAttackInfluence == 0 ||
199              FilterRight.SetType(OVERRIDE_FILTER_TYPE);               eg1ControllerValue <= 10)) { // strange GSt special case
200              #endif // OVERRIDE_FILTER_TYPE              eg.Attack = 0; // this will force the attack to be 0 in the call to EG1.trigger
201            } else {
202              VCFCutoffCtrl.value    = pEngine->ControllerTable[VCFCutoffCtrl.controller];              eg.Attack  = (pRegion->EG1ControllerAttackInfluence)  ?
203              VCFResonanceCtrl.value = pEngine->ControllerTable[VCFResonanceCtrl.controller];                  1 + 0.031 * (double) (pRegion->EG1ControllerAttackInfluence == 1 ?
204                                          1 : 1 << pRegion->EG1ControllerAttackInfluence) * eg1ControllerValue : 1.0;
205              // calculate cutoff frequency          }
206              float cutoff = (!VCFCutoffCtrl.controller)          eg.Decay   = (pRegion->EG1ControllerDecayInfluence)   ? 1 + 0.00775 * (double) (1 << pRegion->EG1ControllerDecayInfluence)   * eg1ControllerValue : 1.0;
207                  ? exp((float) (127 - pNoteOnEvent->Velocity) * (float) pDimRgn->VCFVelocityScale * 6.2E-5f * FILTER_CUTOFF_COEFF) * FILTER_CUTOFF_MAX          eg.Release = (pRegion->EG1ControllerReleaseInfluence) ? 1 + 0.00775 * (double) (1 << pRegion->EG1ControllerReleaseInfluence) * eg1ControllerValue : 1.0;
208                  : exp((float) VCFCutoffCtrl.value * 0.00787402f * FILTER_CUTOFF_COEFF) * FILTER_CUTOFF_MAX;  
209            return eg;
210              // calculate resonance      }
211              float resonance = (float) VCFResonanceCtrl.value * 0.00787f;   // 0.0..1.0  
212              if (pDimRgn->VCFKeyboardTracking) {      double Voice::GetEG2ControllerValue(uint8_t MIDIKeyVelocity) {
213                  resonance += (float) (pNoteOnEvent->Key - pDimRgn->VCFKeyboardTrackingBreakpoint) * 0.00787f;          double eg2controllervalue = 0;
214              }          switch (pRegion->EG2Controller.type) {
215              Constrain(resonance, 0.0, 1.0); // correct resonance if outside allowed value range (0.0..1.0)              case ::gig::eg2_ctrl_t::type_none: // no controller defined
216                    eg2controllervalue = 0;
217                    break;
218                case ::gig::eg2_ctrl_t::type_channelaftertouch:
219                    eg2controllervalue = GetGigEngineChannel()->ControllerTable[128];
220                    break;
221                case ::gig::eg2_ctrl_t::type_velocity:
222                    eg2controllervalue = MIDIKeyVelocity;
223                    break;
224                case ::gig::eg2_ctrl_t::type_controlchange: // MIDI control change controller
225                    eg2controllervalue = GetGigEngineChannel()->ControllerTable[pRegion->EG2Controller.controller_number];
226                    break;
227            }
228            if (pRegion->EG2ControllerInvert) eg2controllervalue = 127 - eg2controllervalue;
229    
230              VCFCutoffCtrl.fvalue    = cutoff - FILTER_CUTOFF_MIN;          return eg2controllervalue;
231              VCFResonanceCtrl.fvalue = resonance;      }
232    
233              FilterLeft.SetParameters(cutoff,  resonance, pEngine->SampleRate);      Voice::EGInfo Voice::CalculateEG2ControllerInfluence(double eg2ControllerValue) {
234              FilterRight.SetParameters(cutoff, resonance, pEngine->SampleRate);          EGInfo eg;
235            eg.Attack  = (pRegion->EG2ControllerAttackInfluence)  ? 1 + 0.00775 * (double) (1 << pRegion->EG2ControllerAttackInfluence)  * eg2ControllerValue : 1.0;
236            eg.Decay   = (pRegion->EG2ControllerDecayInfluence)   ? 1 + 0.00775 * (double) (1 << pRegion->EG2ControllerDecayInfluence)   * eg2ControllerValue : 1.0;
237            eg.Release = (pRegion->EG2ControllerReleaseInfluence) ? 1 + 0.00775 * (double) (1 << pRegion->EG2ControllerReleaseInfluence) * eg2ControllerValue : 1.0;
238    
239              FilterUpdateCounter = -1;          return eg;
240          }      }
         else {  
             VCFCutoffCtrl.controller    = 0;  
             VCFResonanceCtrl.controller = 0;  
         }  
     #endif // ENABLE_FILTER  
241    
242          // ************************************************      void Voice::InitLFO1() {
243          // TODO: ARTICULATION DATA HANDLING IS MISSING HERE          uint16_t lfo1_internal_depth;
244          // ************************************************          switch (pRegion->LFO1Controller) {
245                case ::gig::lfo1_ctrl_internal:
246          return 0; // success                  lfo1_internal_depth  = pRegion->LFO1InternalDepth;
247      }                  pLFO1->ExtController = 0; // no external controller
248                    bLFO1Enabled         = (lfo1_internal_depth > 0);
     /**  
      *  Renders the audio data for this voice for the current audio fragment.  
      *  The sample input data can either come from RAM (cached sample or sample  
      *  part) or directly from disk. The output signal will be rendered by  
      *  resampling / interpolation. If this voice is a disk streaming voice and  
      *  the voice completely played back the cached RAM part of the sample, it  
      *  will automatically switch to disk playback for the next RenderAudio()  
      *  call.  
      *  
      *  @param Samples - number of samples to be rendered in this audio fragment cycle  
      */  
     void Voice::Render(uint Samples) {  
   
         // Reset the synthesis parameter matrix  
         pEngine->ResetSynthesisParameters(Event::destination_vca, this->Volume * this->CrossfadeVolume * pEngine->GlobalVolume);  
         pEngine->ResetSynthesisParameters(Event::destination_vco, this->PitchBase);  
     #if ENABLE_FILTER  
         pEngine->ResetSynthesisParameters(Event::destination_vcfc, VCFCutoffCtrl.fvalue);  
         pEngine->ResetSynthesisParameters(Event::destination_vcfr, VCFResonanceCtrl.fvalue);  
     #endif // ENABLE_FILTER  
   
   
         // Apply events to the synthesis parameter matrix  
         ProcessEvents(Samples);  
   
   
         // Let all modulators write their parameter changes to the synthesis parameter matrix for the current audio fragment  
         pEG1->Process(Samples, pEngine->pMIDIKeyInfo[MIDIKey].pEvents, pTriggerEvent, this->Pos, this->PitchBase * this->PitchBend);  
     #if ENABLE_FILTER  
         pEG2->Process(Samples, pEngine->pMIDIKeyInfo[MIDIKey].pEvents, pTriggerEvent, this->Pos, this->PitchBase * this->PitchBend);  
     #endif // ENABLE_FILTER  
         pEG3->Process(Samples);  
         pLFO1->Process(Samples);  
     #if ENABLE_FILTER  
         pLFO2->Process(Samples);  
     #endif // ENABLE_FILTER  
         pLFO3->Process(Samples);  
   
   
     #if ENABLE_FILTER  
         CalculateBiquadParameters(Samples); // calculate the final biquad filter parameters  
     #endif // ENABLE_FILTER  
   
   
         switch (this->PlaybackState) {  
   
             case playback_state_ram: {  
                     if (RAMLoop) InterpolateAndLoop(Samples, (sample_t*) pSample->GetCache().pStart, Delay);  
                     else         Interpolate(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;  
                             Kill();  
                             return;  
                         }  
                         DiskStreamRef.pStream->IncrementReadPos(pSample->Channels * (RTMath::DoubleToInt(Pos) - MaxRAMPos));  
                         Pos -= RTMath::DoubleToInt(Pos);  
                     }  
   
                     // add silence sample at the end if we reached the end of the stream (for the interpolator)  
                     if (DiskStreamRef.State == Stream::state_end && DiskStreamRef.pStream->GetReadSpace() < (pEngine->MaxSamplesPerCycle << MAX_PITCH) / pSample->Channels) {  
                         DiskStreamRef.pStream->WriteSilence((pEngine->MaxSamplesPerCycle << MAX_PITCH) / pSample->Channels);  
                         this->PlaybackState = playback_state_end;  
                     }  
   
                     sample_t* ptr = DiskStreamRef.pStream->GetReadPtr(); // get the current read_ptr within the ringbuffer where we read the samples from  
                     Interpolate(Samples, ptr, Delay);  
                     DiskStreamRef.pStream->IncrementReadPos(RTMath::DoubleToInt(Pos) * pSample->Channels);  
                     Pos -= RTMath::DoubleToInt(Pos);  
                 }  
249                  break;                  break;
250                case ::gig::lfo1_ctrl_modwheel:
251              case playback_state_end:                  lfo1_internal_depth  = 0;
252                  Kill(); // free voice                  pLFO1->ExtController = 1; // MIDI controller 1
253                    bLFO1Enabled         = (pRegion->LFO1ControlDepth > 0);
254                  break;                  break;
255                case ::gig::lfo1_ctrl_breath:
256                    lfo1_internal_depth  = 0;
257                    pLFO1->ExtController = 2; // MIDI controller 2
258                    bLFO1Enabled         = (pRegion->LFO1ControlDepth > 0);
259                    break;
260                case ::gig::lfo1_ctrl_internal_modwheel:
261                    lfo1_internal_depth  = pRegion->LFO1InternalDepth;
262                    pLFO1->ExtController = 1; // MIDI controller 1
263                    bLFO1Enabled         = (lfo1_internal_depth > 0 || pRegion->LFO1ControlDepth > 0);
264                    break;
265                case ::gig::lfo1_ctrl_internal_breath:
266                    lfo1_internal_depth  = pRegion->LFO1InternalDepth;
267                    pLFO1->ExtController = 2; // MIDI controller 2
268                    bLFO1Enabled         = (lfo1_internal_depth > 0 || pRegion->LFO1ControlDepth > 0);
269                    break;
270                default:
271                    lfo1_internal_depth  = 0;
272                    pLFO1->ExtController = 0; // no external controller
273                    bLFO1Enabled         = false;
274            }
275            if (bLFO1Enabled) {
276                pLFO1->trigger(pRegion->LFO1Frequency,
277                               start_level_min,
278                               lfo1_internal_depth,
279                               pRegion->LFO1ControlDepth,
280                               pRegion->LFO1FlipPhase,
281                               pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
282                pLFO1->updateByMIDICtrlValue(pLFO1->ExtController ? GetGigEngineChannel()->ControllerTable[pLFO1->ExtController] : 0);
283                pLFO1->setScriptDepthFactor(
284                    pNote->Override.AmpLFODepth.Value,
285                    pNote->Override.AmpLFODepth.Final
286                );
287                if (pNote->Override.AmpLFOFreq.isFinal())
288                    pLFO1->setScriptFrequencyFinal(
289                        pNote->Override.AmpLFOFreq.Value, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE
290                    );
291                else
292                    pLFO1->setScriptFrequencyFactor(
293                        pNote->Override.AmpLFOFreq.Value, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE
294                    );
295          }          }
296        }
297    
298        void Voice::InitLFO2() {
299          // Reset synthesis event lists (except VCO, as VCO events apply channel wide currently)          uint16_t lfo2_internal_depth;
300          pEngine->pSynthesisEvents[Event::destination_vca]->clear();          switch (pRegion->LFO2Controller) {
301      #if ENABLE_FILTER              case ::gig::lfo2_ctrl_internal:
302          pEngine->pSynthesisEvents[Event::destination_vcfc]->clear();                  lfo2_internal_depth  = pRegion->LFO2InternalDepth;
303          pEngine->pSynthesisEvents[Event::destination_vcfr]->clear();                  pLFO2->ExtController = 0; // no external controller
304      #endif // ENABLE_FILTER                  bLFO2Enabled         = (lfo2_internal_depth > 0);
305                    break;
306          // Reset delay              case ::gig::lfo2_ctrl_modwheel:
307          Delay = 0;                  lfo2_internal_depth  = 0;
308                    pLFO2->ExtController = 1; // MIDI controller 1
309          pTriggerEvent = NULL;                  bLFO2Enabled         = (pRegion->LFO2ControlDepth > 0);
310                    break;
311          // If release stage finished, let the voice be killed              case ::gig::lfo2_ctrl_foot:
312          if (pEG1->GetStage() == EGADSR::stage_end) this->PlaybackState = playback_state_end;                  lfo2_internal_depth  = 0;
313      }                  pLFO2->ExtController = 4; // MIDI controller 4
314                    bLFO2Enabled         = (pRegion->LFO2ControlDepth > 0);
315      /**                  break;
316       *  Resets voice variables. Should only be called if rendering process is              case ::gig::lfo2_ctrl_internal_modwheel:
317       *  suspended / not running.                  lfo2_internal_depth  = pRegion->LFO2InternalDepth;
318       */                  pLFO2->ExtController = 1; // MIDI controller 1
319      void Voice::Reset() {                  bLFO2Enabled         = (lfo2_internal_depth > 0 || pRegion->LFO2ControlDepth > 0);
320          pLFO1->Reset();                  break;
321          pLFO2->Reset();              case ::gig::lfo2_ctrl_internal_foot:
322          pLFO3->Reset();                  lfo2_internal_depth  = pRegion->LFO2InternalDepth;
323          DiskStreamRef.pStream = NULL;                  pLFO2->ExtController = 4; // MIDI controller 4
324          DiskStreamRef.hStream = 0;                  bLFO2Enabled         = (lfo2_internal_depth > 0 || pRegion->LFO2ControlDepth > 0);
325          DiskStreamRef.State   = Stream::state_unused;                  break;
326          DiskStreamRef.OrderID = 0;              default:
327          Active = false;                  lfo2_internal_depth  = 0;
328      }                  pLFO2->ExtController = 0; // no external controller
329                    bLFO2Enabled         = false;
330      /**          }
331       *  Process the control change event lists of the engine for the current          if (bLFO2Enabled) {
332       *  audio fragment. Event values will be applied to the synthesis parameter              pLFO2->trigger(pRegion->LFO2Frequency,
333       *  matrix.                             start_level_max,
334       *                             lfo2_internal_depth,
335       *  @param Samples - number of samples to be rendered in this audio fragment cycle                             pRegion->LFO2ControlDepth,
336       */                             pRegion->LFO2FlipPhase,
337      void Voice::ProcessEvents(uint Samples) {                             pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
338                pLFO2->updateByMIDICtrlValue(pLFO2->ExtController ? GetGigEngineChannel()->ControllerTable[pLFO2->ExtController] : 0);
339          // dispatch control change events              pLFO2->setScriptDepthFactor(
340          Event* pCCEvent = pEngine->pCCEvents->first();                  pNote->Override.CutoffLFODepth.Value,
341          if (Delay) { // skip events that happened before this voice was triggered                  pNote->Override.CutoffLFODepth.Final
342              while (pCCEvent && pCCEvent->FragmentPos() <= Delay) pCCEvent = pEngine->pCCEvents->next();              );
343          }              if (pNote->Override.CutoffLFOFreq.isFinal())
344          while (pCCEvent) {                  pLFO2->setScriptFrequencyFinal(pNote->Override.CutoffLFOFreq.Value, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
345              if (pCCEvent->Controller) { // if valid MIDI controller              else
346                  #if ENABLE_FILTER                  pLFO2->setScriptFrequencyFactor(pNote->Override.CutoffLFOFreq.Value, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
                 if (pCCEvent->Controller == VCFCutoffCtrl.controller) {  
                     pEngine->pSynthesisEvents[Event::destination_vcfc]->alloc_assign(*pCCEvent);  
                 }  
                 if (pCCEvent->Controller == VCFResonanceCtrl.controller) {  
                     pEngine->pSynthesisEvents[Event::destination_vcfr]->alloc_assign(*pCCEvent);  
                 }  
                 #endif // ENABLE_FILTER  
                 if (pCCEvent->Controller == pLFO1->ExtController) {  
                     pLFO1->SendEvent(pCCEvent);  
                 }  
                 #if ENABLE_FILTER  
                 if (pCCEvent->Controller == pLFO2->ExtController) {  
                     pLFO2->SendEvent(pCCEvent);  
                 }  
                 #endif // ENABLE_FILTER  
                 if (pCCEvent->Controller == pLFO3->ExtController) {  
                     pLFO3->SendEvent(pCCEvent);  
                 }  
                 if (pDimRgn->AttenuationController.type == ::gig::attenuation_ctrl_t::type_controlchange &&  
                     pCCEvent->Controller == pDimRgn->AttenuationController.controller_number) { // if crossfade event  
                     pEngine->pSynthesisEvents[Event::destination_vca]->alloc_assign(*pCCEvent);  
                 }  
             }  
   
             pCCEvent = pEngine->pCCEvents->next();  
347          }          }
348        }
349    
350        void Voice::InitLFO3() {
351          // process pitch events          uint16_t lfo3_internal_depth;
352          {          switch (pRegion->LFO3Controller) {
353              RTEList<Event>* pVCOEventList = pEngine->pSynthesisEvents[Event::destination_vco];              case ::gig::lfo3_ctrl_internal:
354              Event* pVCOEvent = pVCOEventList->first();                  lfo3_internal_depth  = pRegion->LFO3InternalDepth;
355              if (Delay) { // skip events that happened before this voice was triggered                  pLFO3->ExtController = 0; // no external controller
356                  while (pVCOEvent && pVCOEvent->FragmentPos() <= Delay) pVCOEvent = pVCOEventList->next();                  bLFO3Enabled         = (lfo3_internal_depth > 0);
357              }                  break;
358              // apply old pitchbend value until first pitch event occurs              case ::gig::lfo3_ctrl_modwheel:
359              if (this->PitchBend != 1.0) {                  lfo3_internal_depth  = 0;
360                  uint end = (pVCOEvent) ? pVCOEvent->FragmentPos() : Samples;                  pLFO3->ExtController = 1; // MIDI controller 1
361                  for (uint i = Delay; i < end; i++) {                  bLFO3Enabled         = (pRegion->LFO3ControlDepth > 0);
362                      pEngine->pSynthesisParameters[Event::destination_vco][i] *= this->PitchBend;                  break;
363                  }              case ::gig::lfo3_ctrl_aftertouch:
364              }                  lfo3_internal_depth  = 0;
365              float pitch;                  pLFO3->ExtController = CTRL_TABLE_IDX_AFTERTOUCH;
366              while (pVCOEvent) {                  bLFO3Enabled         = true;
367                  Event* pNextVCOEvent = pVCOEventList->next();                  break;
368                case ::gig::lfo3_ctrl_internal_modwheel:
369                  // calculate the influence length of this event (in sample points)                  lfo3_internal_depth  = pRegion->LFO3InternalDepth;
370                  uint end = (pNextVCOEvent) ? pNextVCOEvent->FragmentPos() : Samples;                  pLFO3->ExtController = 1; // MIDI controller 1
371                    bLFO3Enabled         = (lfo3_internal_depth > 0 || pRegion->LFO3ControlDepth > 0);
372                  pitch = RTMath::CentsToFreqRatio(((double) pVCOEvent->Pitch / 8192.0) * 200.0); // +-two semitones = +-200 cents                  break;
373                case ::gig::lfo3_ctrl_internal_aftertouch:
374                  // apply pitch value to the pitch parameter sequence                  lfo3_internal_depth  = pRegion->LFO3InternalDepth;
375                  for (uint i = pVCOEvent->FragmentPos(); i < end; i++) {                  pLFO3->ExtController = CTRL_TABLE_IDX_AFTERTOUCH;
376                      pEngine->pSynthesisParameters[Event::destination_vco][i] *= pitch;                  bLFO3Enabled         = (lfo3_internal_depth > 0 || pRegion->LFO3ControlDepth > 0);
377                  }                  break;
378                default:
379                  pVCOEvent = pNextVCOEvent;                  lfo3_internal_depth  = 0;
380              }                  pLFO3->ExtController = 0; // no external controller
381              if (pVCOEventList->last()) this->PitchBend = pitch;                  bLFO3Enabled         = false;
382            }
383            if (bLFO3Enabled) {
384                pLFO3->trigger(pRegion->LFO3Frequency,
385                               start_level_mid,
386                               lfo3_internal_depth,
387                               pRegion->LFO3ControlDepth,
388                               false,
389                               pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
390                pLFO3->updateByMIDICtrlValue(pLFO3->ExtController ? GetGigEngineChannel()->ControllerTable[pLFO3->ExtController] : 0);
391                pLFO3->setScriptDepthFactor(
392                    pNote->Override.PitchLFODepth.Value,
393                    pNote->Override.PitchLFODepth.Final
394                );
395                if (pNote->Override.PitchLFOFreq.isFinal())
396                    pLFO3->setScriptFrequencyFinal(pNote->Override.PitchLFOFreq.Value, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
397                else
398                    pLFO3->setScriptFrequencyFactor(pNote->Override.PitchLFOFreq.Value, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
399          }          }
400        }
401    
402          // process volume / attenuation events (TODO: we only handle and _expect_ crossfade events here ATM !)      float Voice::CalculateCutoffBase(uint8_t MIDIKeyVelocity) {
403          {          float cutoff = pRegion->GetVelocityCutoff(MIDIKeyVelocity);
404              RTEList<Event>* pVCAEventList = pEngine->pSynthesisEvents[Event::destination_vca];          if (pRegion->VCFKeyboardTracking) {
405              Event* pVCAEvent = pVCAEventList->first();              cutoff *= RTMath::CentsToFreqRatioUnlimited((MIDIKey() - pRegion->VCFKeyboardTrackingBreakpoint) * 100);
406              if (Delay) { // skip events that happened before this voice was triggered          }
407                  while (pVCAEvent && pVCAEvent->FragmentPos() <= Delay) pVCAEvent = pVCAEventList->next();          return cutoff;
408              }      }
409              float crossfadevolume;  
410              while (pVCAEvent) {      float Voice::CalculateFinalCutoff(float cutoffBase) {
411                  Event* pNextVCAEvent = pVCAEventList->next();          int cvalue;
412            if (VCFCutoffCtrl.controller) {
413                  // calculate the influence length of this event (in sample points)              cvalue = GetGigEngineChannel()->ControllerTable[VCFCutoffCtrl.controller];
414                  uint end = (pNextVCAEvent) ? pNextVCAEvent->FragmentPos() : Samples;              if (pRegion->VCFCutoffControllerInvert) cvalue = 127 - cvalue;
415                // VCFVelocityScale in this case means Minimum cutoff
416                  crossfadevolume = CrossfadeAttenuation(pVCAEvent->Value);              if (cvalue < pRegion->VCFVelocityScale) cvalue = pRegion->VCFVelocityScale;
   
                 float effective_volume = crossfadevolume * this->Volume * pEngine->GlobalVolume;  
   
                 // apply volume value to the volume parameter sequence  
                 for (uint i = pVCAEvent->FragmentPos(); i < end; i++) {  
                     pEngine->pSynthesisParameters[Event::destination_vca][i] = effective_volume;  
                 }  
   
                 pVCAEvent = pNextVCAEvent;  
             }  
             if (pVCAEventList->last()) this->CrossfadeVolume = crossfadevolume;  
417          }          }
418            else {
419      #if ENABLE_FILTER              cvalue = pRegion->VCFCutoff;
         // process filter cutoff events  
         {  
             RTEList<Event>* pCutoffEventList = pEngine->pSynthesisEvents[Event::destination_vcfc];  
             Event* pCutoffEvent = pCutoffEventList->first();  
             if (Delay) { // skip events that happened before this voice was triggered  
                 while (pCutoffEvent && pCutoffEvent->FragmentPos() <= Delay) pCutoffEvent = pCutoffEventList->next();  
             }  
             float cutoff;  
             while (pCutoffEvent) {  
                 Event* pNextCutoffEvent = pCutoffEventList->next();  
   
                 // calculate the influence length of this event (in sample points)  
                 uint end = (pNextCutoffEvent) ? pNextCutoffEvent->FragmentPos() : Samples;  
   
                 cutoff = exp((float) pCutoffEvent->Value * 0.00787402f * FILTER_CUTOFF_COEFF) * FILTER_CUTOFF_MAX - FILTER_CUTOFF_MIN;  
   
                 // apply cutoff frequency to the cutoff parameter sequence  
                 for (uint i = pCutoffEvent->FragmentPos(); i < end; i++) {  
                     pEngine->pSynthesisParameters[Event::destination_vcfc][i] = cutoff;  
                 }  
   
                 pCutoffEvent = pNextCutoffEvent;  
             }  
             if (pCutoffEventList->last()) VCFCutoffCtrl.fvalue = cutoff; // needed for initialization of parameter matrix next time  
420          }          }
421            float fco = cutoffBase * float(cvalue);
422            if (fco > 127.0f) fco = 127.0f;
423    
424          // process filter resonance events          return fco;
         {  
             RTEList<Event>* pResonanceEventList = pEngine->pSynthesisEvents[Event::destination_vcfr];  
             Event* pResonanceEvent = pResonanceEventList->first();  
             if (Delay) { // skip events that happened before this voice was triggered  
                 while (pResonanceEvent && pResonanceEvent->FragmentPos() <= Delay) pResonanceEvent = pResonanceEventList->next();  
             }  
             while (pResonanceEvent) {  
                 Event* pNextResonanceEvent = pResonanceEventList->next();  
   
                 // calculate the influence length of this event (in sample points)  
                 uint end = (pNextResonanceEvent) ? pNextResonanceEvent->FragmentPos() : Samples;  
   
                 // convert absolute controller value to differential  
                 int ctrldelta = pResonanceEvent->Value - VCFResonanceCtrl.value;  
                 VCFResonanceCtrl.value = pResonanceEvent->Value;  
   
                 float resonancedelta = (float) ctrldelta * 0.00787f; // 0.0..1.0  
   
                 // apply cutoff frequency to the cutoff parameter sequence  
                 for (uint i = pResonanceEvent->FragmentPos(); i < end; i++) {  
                     pEngine->pSynthesisParameters[Event::destination_vcfr][i] += resonancedelta;  
                 }  
   
                 pResonanceEvent = pNextResonanceEvent;  
             }  
             if (pResonanceEventList->last()) VCFResonanceCtrl.fvalue = pResonanceEventList->last()->Value * 0.00787f; // needed for initialization of parameter matrix next time  
         }  
     #endif // ENABLE_FILTER  
425      }      }
426    
427      #if ENABLE_FILTER      uint8_t Voice::GetVCFCutoffCtrl() {
428      /**          uint8_t ctrl;
429       * Calculate all necessary, final biquad filter parameters.          switch (pRegion->VCFCutoffController) {
430       *              case ::gig::vcf_cutoff_ctrl_modwheel:
431       * @param Samples - number of samples to be rendered in this audio fragment cycle                  ctrl = 1;
432       */                  break;
433      void Voice::CalculateBiquadParameters(uint Samples) {              case ::gig::vcf_cutoff_ctrl_effect1:
434          if (!FilterLeft.Enabled) return;                  ctrl = 12;
435                    break;
436          biquad_param_t bqbase;              case ::gig::vcf_cutoff_ctrl_effect2:
437          biquad_param_t bqmain;                  ctrl = 13;
438          float prev_cutoff = pEngine->pSynthesisParameters[Event::destination_vcfc][0];                  break;
439          float prev_res    = pEngine->pSynthesisParameters[Event::destination_vcfr][0];              case ::gig::vcf_cutoff_ctrl_breath:
440          FilterLeft.SetParameters(&bqbase, &bqmain, prev_cutoff, prev_res, pEngine->SampleRate);                  ctrl = 2;
441          pEngine->pBasicFilterParameters[0] = bqbase;                  break;
442          pEngine->pMainFilterParameters[0]  = bqmain;              case ::gig::vcf_cutoff_ctrl_foot:
443                    ctrl = 4;
444          float* bq;                  break;
445          for (int i = 1; i < Samples; i++) {              case ::gig::vcf_cutoff_ctrl_sustainpedal:
446              // recalculate biquad parameters if cutoff or resonance differ from previous sample point                  ctrl = 64;
447              if (!(i & FILTER_UPDATE_MASK)) if (pEngine->pSynthesisParameters[Event::destination_vcfr][i] != prev_res ||                  break;
448                                                 pEngine->pSynthesisParameters[Event::destination_vcfc][i] != prev_cutoff) {              case ::gig::vcf_cutoff_ctrl_softpedal:
449                  prev_cutoff = pEngine->pSynthesisParameters[Event::destination_vcfc][i];                  ctrl = 67;
450                  prev_res    = pEngine->pSynthesisParameters[Event::destination_vcfr][i];                  break;
451                  FilterLeft.SetParameters(&bqbase, &bqmain, prev_cutoff, prev_res, pEngine->SampleRate);              case ::gig::vcf_cutoff_ctrl_genpurpose7:
452              }                  ctrl = 82;
453                    break;
454              //same as 'pEngine->pBasicFilterParameters[i] = bqbase;'              case ::gig::vcf_cutoff_ctrl_genpurpose8:
455              bq    = (float*) &pEngine->pBasicFilterParameters[i];                  ctrl = 83;
456              bq[0] = bqbase.a1;                  break;
457              bq[1] = bqbase.a2;              case ::gig::vcf_cutoff_ctrl_aftertouch:
458              bq[2] = bqbase.b0;                  ctrl = CTRL_TABLE_IDX_AFTERTOUCH;
459              bq[3] = bqbase.b1;                  break;
460              bq[4] = bqbase.b2;              case ::gig::vcf_cutoff_ctrl_none:
461                default:
462              // same as 'pEngine->pMainFilterParameters[i] = bqmain;'                  ctrl = 0;
463              bq    = (float*) &pEngine->pMainFilterParameters[i];                  break;
             bq[0] = bqmain.a1;  
             bq[1] = bqmain.a2;  
             bq[2] = bqmain.b0;  
             bq[3] = bqmain.b1;  
             bq[4] = bqmain.b2;  
464          }          }
     }  
     #endif // ENABLE_FILTER  
465    
466      /**          return ctrl;
      *  Interpolates the input audio data (no loop).  
      *  
      *  @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::Interpolate(uint Samples, sample_t* pSrc, uint Skip) {  
         int i = Skip;  
   
         // FIXME: assuming either mono or stereo  
         if (this->pSample->Channels == 2) { // Stereo Sample  
             while (i < Samples) {  
                 InterpolateOneStep_Stereo(pSrc, i,  
                                           pEngine->pSynthesisParameters[Event::destination_vca][i],  
                                           pEngine->pSynthesisParameters[Event::destination_vco][i],  
                                           pEngine->pBasicFilterParameters[i],  
                                           pEngine->pMainFilterParameters[i]);  
             }  
         }  
         else { // Mono Sample  
             while (i < Samples) {  
                 InterpolateOneStep_Mono(pSrc, i,  
                                         pEngine->pSynthesisParameters[Event::destination_vca][i],  
                                         pEngine->pSynthesisParameters[Event::destination_vco][i],  
                                         pEngine->pBasicFilterParameters[i],  
                                         pEngine->pMainFilterParameters[i]);  
             }  
         }  
467      }      }
468    
469      /**      uint8_t Voice::GetVCFResonanceCtrl() {
470       *  Interpolates the input audio data, this method honors looping.          uint8_t ctrl;
471       *          switch (pRegion->VCFResonanceController) {
472       *  @param Samples - number of sample points to be rendered in this audio              case ::gig::vcf_res_ctrl_genpurpose3:
473       *                   fragment cycle                  ctrl = 18;
474       *  @param pSrc    - pointer to input sample data                  break;
475       *  @param Skip    - number of sample points to skip in output buffer              case ::gig::vcf_res_ctrl_genpurpose4:
476       */                  ctrl = 19;
477      void Voice::InterpolateAndLoop(uint Samples, sample_t* pSrc, uint Skip) {                  break;
478          int i = Skip;              case ::gig::vcf_res_ctrl_genpurpose5:
479                    ctrl = 80;
480          // FIXME: assuming either mono or stereo                  break;
481          if (pSample->Channels == 2) { // Stereo Sample              case ::gig::vcf_res_ctrl_genpurpose6:
482              if (pSample->LoopPlayCount) {                  ctrl = 81;
483                  // render loop (loop count limited)                  break;
484                  while (i < Samples && LoopCyclesLeft) {              case ::gig::vcf_res_ctrl_none:
485                      InterpolateOneStep_Stereo(pSrc, i,              default:
486                                                pEngine->pSynthesisParameters[Event::destination_vca][i],                  ctrl = 0;
                                               pEngine->pSynthesisParameters[Event::destination_vco][i],  
                                               pEngine->pBasicFilterParameters[i],  
                                               pEngine->pMainFilterParameters[i]);  
                     if (Pos > pSample->LoopEnd) {  
                         Pos = pSample->LoopStart + fmod(Pos - pSample->LoopEnd, pSample->LoopSize);;  
                         LoopCyclesLeft--;  
                     }  
                 }  
                 // render on without loop  
                 while (i < Samples) {  
                     InterpolateOneStep_Stereo(pSrc, i,  
                                               pEngine->pSynthesisParameters[Event::destination_vca][i],  
                                               pEngine->pSynthesisParameters[Event::destination_vco][i],  
                                               pEngine->pBasicFilterParameters[i],  
                                               pEngine->pMainFilterParameters[i]);  
                 }  
             }  
             else { // render loop (endless loop)  
                 while (i < Samples) {  
                     InterpolateOneStep_Stereo(pSrc, i,  
                                               pEngine->pSynthesisParameters[Event::destination_vca][i],  
                                               pEngine->pSynthesisParameters[Event::destination_vco][i],  
                                               pEngine->pBasicFilterParameters[i],  
                                               pEngine->pMainFilterParameters[i]);  
                     if (Pos > pSample->LoopEnd) {  
                         Pos = pSample->LoopStart + fmod(Pos - pSample->LoopEnd, pSample->LoopSize);  
                     }  
                 }  
             }  
         }  
         else { // Mono Sample  
             if (pSample->LoopPlayCount) {  
                 // render loop (loop count limited)  
                 while (i < Samples && LoopCyclesLeft) {  
                     InterpolateOneStep_Mono(pSrc, i,  
                                             pEngine->pSynthesisParameters[Event::destination_vca][i],  
                                             pEngine->pSynthesisParameters[Event::destination_vco][i],  
                                             pEngine->pBasicFilterParameters[i],  
                                             pEngine->pMainFilterParameters[i]);  
                     if (Pos > pSample->LoopEnd) {  
                         Pos = pSample->LoopStart + fmod(Pos - pSample->LoopEnd, pSample->LoopSize);;  
                         LoopCyclesLeft--;  
                     }  
                 }  
                 // render on without loop  
                 while (i < Samples) {  
                     InterpolateOneStep_Mono(pSrc, i,  
                                             pEngine->pSynthesisParameters[Event::destination_vca][i],  
                                             pEngine->pSynthesisParameters[Event::destination_vco][i],  
                                             pEngine->pBasicFilterParameters[i],  
                                             pEngine->pMainFilterParameters[i]);  
                 }  
             }  
             else { // render loop (endless loop)  
                 while (i < Samples) {  
                     InterpolateOneStep_Mono(pSrc, i,  
                                             pEngine->pSynthesisParameters[Event::destination_vca][i],  
                                             pEngine->pSynthesisParameters[Event::destination_vco][i],  
                                             pEngine->pBasicFilterParameters[i],  
                                             pEngine->pMainFilterParameters[i]);  
                     if (Pos > pSample->LoopEnd) {  
                         Pos = pSample->LoopStart + fmod(Pos - pSample->LoopEnd, pSample->LoopSize);;  
                     }  
                 }  
             }  
487          }          }
488    
489            return ctrl;
490      }      }
491    
492      /**      void Voice::TriggerEG1(const EGInfo& egInfo, double velrelease, double velocityAttenuation, uint sampleRate, uint8_t velocity) {
493       *  Immediately kill the voice.          EG1.setStateOptions(
494       */              pRegion->EG1Options.AttackCancel,
495      void Voice::Kill() {              pRegion->EG1Options.AttackHoldCancel,
496          if (DiskVoice && DiskStreamRef.State != Stream::state_unused) {              pRegion->EG1Options.Decay1Cancel,
497              pDiskThread->OrderDeletionOfStream(&DiskStreamRef);              pRegion->EG1Options.Decay2Cancel,
498                pRegion->EG1Options.ReleaseCancel
499            );
500            EG1.trigger(pRegion->EG1PreAttack,
501                        RTMath::Max(pRegion->EG1Attack, 0.0316) * egInfo.Attack,
502                        pRegion->EG1Hold,
503                        pRegion->EG1Decay1 * egInfo.Decay * velrelease,
504                        pRegion->EG1Decay2 * egInfo.Decay * velrelease,
505                        pRegion->EG1InfiniteSustain,
506                        (pNote && pNote->Override.Sustain.Final) ?
507                            pNote->Override.Sustain.Value :
508                            pRegion->EG1Sustain * (pNote ? pNote->Override.Sustain.Value : 1.f),
509                        RTMath::Max(pRegion->EG1Release * velrelease, 0.014) * egInfo.Release,
510                        velocityAttenuation,
511                        sampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
512        }
513    
514        void Voice::TriggerEG2(const EGInfo& egInfo, double velrelease, double velocityAttenuation, uint sampleRate, uint8_t velocity) {
515            EG2.setStateOptions(
516                pRegion->EG2Options.AttackCancel,
517                pRegion->EG2Options.AttackHoldCancel,
518                pRegion->EG2Options.Decay1Cancel,
519                pRegion->EG2Options.Decay2Cancel,
520                pRegion->EG2Options.ReleaseCancel
521            );
522            EG2.trigger(uint(RgnInfo.EG2PreAttack),
523                        RgnInfo.EG2Attack * egInfo.Attack,
524                        false,
525                        RgnInfo.EG2Decay1 * egInfo.Decay * velrelease,
526                        RgnInfo.EG2Decay2 * egInfo.Decay * velrelease,
527                        RgnInfo.EG2InfiniteSustain,
528                        uint(RgnInfo.EG2Sustain),
529                        RgnInfo.EG2Release * egInfo.Release * velrelease,
530                        velocityAttenuation,
531                        sampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
532        }
533    
534        void Voice::ProcessGroupEvent(RTList<Event>::Iterator& itEvent) {
535            dmsg(4,("Voice %p processGroupEvents event type=%d", (void*)this, itEvent->Type));
536    
537            // TODO: The SustainPedal condition could be wrong, maybe the
538            // check should be if this Voice is in release stage or is a
539            // release sample instead. Need to test this in GSt.
540            // -- Andreas
541            //
542            // Commented sustain pedal check out. I don't think voices of the same
543            // note should be stopped at all, because it doesn't sound naturally
544            // with a drumkit.
545            // -- Christian, 2013-01-08
546            if (itEvent->Param.Note.Key != HostKey() /*||
547                !GetGigEngineChannel()->SustainPedal*/) {
548                dmsg(4,("Voice %p - kill", (void*)this));
549    
550                // kill the voice fast
551                pEG1->enterFadeOutStage();
552            }
553        }
554    
555        void Voice::CalculateFadeOutCoeff(float FadeOutTime, float SampleRate) {
556            EG1.CalculateFadeOutCoeff(FadeOutTime, SampleRate);
557        }
558    
559        int Voice::CalculatePan(uint8_t pan) {
560            int p;
561            // Gst behaviour: -64 and 63 are special cases
562            if (RgnInfo.Pan == -64)     p = pan * 2 - 127;
563            else if (RgnInfo.Pan == 63) p = pan * 2;
564            else                        p = pan + RgnInfo.Pan;
565    
566            if (p < 0) return 0;
567            if (p > 127) return 127;
568            return p;
569        }
570    
571        release_trigger_t Voice::GetReleaseTriggerFlags() {
572            release_trigger_t flags =
573                (pRegion->NoNoteOffReleaseTrigger) ?
574                    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
575            switch (pRegion->SustainReleaseTrigger) {
576                case ::gig::sust_rel_trg_none:
577                    break;
578                case ::gig::sust_rel_trg_maxvelocity:
579                    flags |= release_trigger_sustain_maxvelocity;
580                    break;
581                case ::gig::sust_rel_trg_keyvelocity:
582                    flags |= release_trigger_sustain_keyvelocity;
583                    break;
584          }          }
585          Reset();          return flags;
586      }      }
587    
588  }} // namespace LinuxSampler::gig  }} // namespace LinuxSampler::gig
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