/[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 242 by schoenebeck, Wed Sep 15 13:59:08 2004 UTC revision 3444 by schoenebeck, Sun Dec 23 19:32:11 2018 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      const float Voice::FILTER_CUTOFF_COEFF(CalculateFilterCutoffCoeff());      Voice::Voice() {
37            pEngine = NULL;
38      const int Voice::FILTER_UPDATE_MASK(CalculateFilterUpdateMask());          pEG1 = &EG1;
39            pEG2 = &EG2;
     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;  
         KeyGroup = 0;  
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)  
      *  @param ReleaseTriggerVoice - if this new voice is a release trigger voice (optional, default = false)  
      *  @returns 0 on success, a value < 0 if something failed  
      */  
     int Voice::Trigger(Event* pNoteOnEvent, int PitchBend, ::gig::Instrument* pInstrument, int iLayer, bool ReleaseTriggerVoice) {  
         if (!pInstrument) {  
            dmsg(1,("voice::trigger: !pInstrument\n"));  
            exit(EXIT_FAILURE);  
         }  
   
         Type            = type_normal;  
         Active          = true;  
         MIDIKey         = pNoteOnEvent->Key;  
         pRegion         = pInstrument->GetRegion(MIDIKey);  
         PlaybackState   = playback_state_ram; // we always start playback from RAM cache and switch then to disk if needed  
         Delay           = pNoteOnEvent->FragmentPos();  
         pTriggerEvent   = pNoteOnEvent;  
         pKillEvent      = NULL;  
   
         if (!pRegion) {  
             std::cerr << "gig::Voice: No Region defined for MIDI key " << MIDIKey << std::endl << std::flush;  
             KillImmediately();  
             return -1;  
         }  
   
         KeyGroup = pRegion->KeyGroup;  
   
         // get current dimension values to select the right dimension region  
         //FIXME: controller values for selecting the dimension region here are currently not sample accurate  
         uint DimValues[5] = {0,0,0,0,0};  
         for (int i = pRegion->Dimensions - 1; i >= 0; i--) {  
             switch (pRegion->pDimensionDefinitions[i].dimension) {  
                 case ::gig::dimension_samplechannel:  
                     DimValues[i] = 0; //TODO: we currently ignore this dimension  
                     break;  
                 case ::gig::dimension_layer:  
                     DimValues[i] = iLayer;  
                     // if this is the 1st layer then spawn further voices for all the other layers  
                     if (iLayer == 0)  
                         for (int iNewLayer = 1; iNewLayer < pRegion->pDimensionDefinitions[i].zones; iNewLayer++)  
                             pEngine->LaunchVoice(pNoteOnEvent, iNewLayer, ReleaseTriggerVoice);  
                     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:  
                     Type = (ReleaseTriggerVoice) ? type_release_trigger : (!iLayer) ? type_release_trigger_required : type_normal;  
                     DimValues[i] = (uint) ReleaseTriggerVoice;  
                     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;  
         }  
   
         pSample = pDimRgn->pSample; // sample won't change until the voice is finished  
   
         Pos = pDimRgn->SampleStartOffset; // offset where we should start playback of sample (0 - 2000 sample points)  
   
         // Check if the sample needs disk streaming or is too short for that  
         long cachedsamples = pSample->GetCache().Size / pSample->FrameSize;  
         DiskVoice          = cachedsamples < pSample->SamplesTotal;  
63    
64          if (DiskVoice) { // voice to be streamed from disk          si.HasLoops       = pRegion->SampleLoops;
65              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)          si.LoopStart      = (si.HasLoops) ? pRegion->pSampleLoops[0].LoopStart  : 0;
66            si.LoopLength     = (si.HasLoops) ? pRegion->pSampleLoops[0].LoopLength : 0;
67              // check if there's a loop defined which completely fits into the cached (RAM) part of the sample          si.LoopPlayCount  = pSample->LoopPlayCount;
68              if (pSample->Loops && pSample->LoopEnd <= MaxRAMPos) {          si.Unpitched      = !pRegion->PitchTrack;
                 RAMLoop        = true;  
                 LoopCyclesLeft = pSample->LoopPlayCount;  
             }  
             else RAMLoop = false;  
   
             if (pDiskThread->OrderNewStream(&DiskStreamRef, pSample, MaxRAMPos, !RAMLoop) < 0) {  
                 dmsg(1,("Disk stream order failed!\n"));  
                 KillImmediately();  
                 return -1;  
             }  
             dmsg(4,("Disk voice launched (cached samples: %d, total Samples: %d, MaxRAMPos: %d, RAMLooping: %s)\n", cachedsamples, pSample->SamplesTotal, MaxRAMPos, (RAMLoop) ? "yes" : "no"));  
         }  
         else { // RAM only voice  
             MaxRAMPos = cachedsamples;  
             if (pSample->Loops) {  
                 RAMLoop        = true;  
                 LoopCyclesLeft = pSample->LoopPlayCount;  
             }  
             else RAMLoop = false;  
             dmsg(4,("RAM only voice launched (Looping: %s)\n", (RAMLoop) ? "yes" : "no"));  
         }  
   
   
         // calculate initial pitch value  
         {  
             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  
         }  
69    
70            return si;
71        }
72    
73          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)      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            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          // setup EG 1 (VCA EG)          ri.EG3Attack     = pRegion->EG3Attack;
89          {          ri.EG3Depth      = pRegion->EG3Depth;
90              // get current value of EG1 controller          ri.VCFEnabled    = pRegion->VCFEnabled;
91              double eg1controllervalue;          ri.VCFType       = Filter::vcf_type_t(pRegion->VCFType);
92              switch (pDimRgn->EG1Controller.type) {          ri.VCFResonance  = pRegion->VCFResonance;
                 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;  
             }  
             if (pDimRgn->EG1ControllerInvert) eg1controllervalue = 127 - eg1controllervalue;  
93    
94              // calculate influence of EG1 controller on EG1's parameters (TODO: needs to be fine tuned)          ri.ReleaseTriggerDecay = 0.01053 * (256 >> pRegion->ReleaseTriggerDecay);
             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);  
         }  
95    
96            return ri;
97        }
98    
99      #if ENABLE_FILTER      Voice::InstrumentInfo Voice::GetInstrumentInfo() {
100          // setup EG 2 (VCF Cutoff EG)          InstrumentInfo ii;
101          {          ii.FineTune = GetGigEngineChannel()->pInstrument->FineTune;
102              // get current value of EG2 controller          ii.PitchbendRange = GetGigEngineChannel()->pInstrument->PitchbendRange;
             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;  
             }  
             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);  
         }  
     #endif // ENABLE_FILTER  
103    
104            return ii;
105        }
106    
107          // setup EG 3 (VCO EG)      double Voice::GetSampleAttenuation() {
108          {          return pRegion->SampleAttenuation;
109            double eg3depth = RTMath::CentsToFreqRatio(pDimRgn->EG3Depth);      }
           pEG3->Trigger(eg3depth, pDimRgn->EG3Attack, Delay);  
         }  
110    
111        double Voice::GetVelocityAttenuation(uint8_t MIDIKeyVelocity) {
112            return pRegion->GetVelocityAttenuation(MIDIKeyVelocity);
113        }
114    
115          // setup LFO 1 (VCA LFO)      double Voice::GetVelocityRelease(uint8_t MIDIKeyVelocity) {
116          {          return pRegion->GetVelocityRelease(MIDIKeyVelocity);
117              uint16_t lfo1_internal_depth;      }
             switch (pDimRgn->LFO1Controller) {  
                 case ::gig::lfo1_ctrl_internal:  
                     lfo1_internal_depth  = pDimRgn->LFO1InternalDepth;  
                     pLFO1->ExtController = 0; // no external controller  
                     break;  
                 case ::gig::lfo1_ctrl_modwheel:  
                     lfo1_internal_depth  = 0;  
                     pLFO1->ExtController = 1; // MIDI controller 1  
                     break;  
                 case ::gig::lfo1_ctrl_breath:  
                     lfo1_internal_depth  = 0;  
                     pLFO1->ExtController = 2; // MIDI controller 2  
                     break;  
                 case ::gig::lfo1_ctrl_internal_modwheel:  
                     lfo1_internal_depth  = pDimRgn->LFO1InternalDepth;  
                     pLFO1->ExtController = 1; // MIDI controller 1  
                     break;  
                 case ::gig::lfo1_ctrl_internal_breath:  
                     lfo1_internal_depth  = pDimRgn->LFO1InternalDepth;  
                     pLFO1->ExtController = 2; // MIDI controller 2  
                     break;  
                 default:  
                     lfo1_internal_depth  = 0;  
                     pLFO1->ExtController = 0; // no external controller  
             }  
             pLFO1->Trigger(pDimRgn->LFO1Frequency,  
                           lfo1_internal_depth,  
                           pDimRgn->LFO1ControlDepth,  
                           pEngine->ControllerTable[pLFO1->ExtController],  
                           pDimRgn->LFO1FlipPhase,  
                           pEngine->SampleRate,  
                           Delay);  
         }  
118    
119      #if ENABLE_FILTER      void Voice::ProcessCCEvent(RTList<Event>::Iterator& itEvent) {
120          // setup LFO 2 (VCF Cutoff LFO)          if (itEvent->Type == Event::type_control_change && itEvent->Param.CC.Controller) { // if (valid) MIDI control change event
121          {              if (pRegion->AttenuationController.type == ::gig::attenuation_ctrl_t::type_controlchange &&
122              uint16_t lfo2_internal_depth;                  itEvent->Param.CC.Controller == pRegion->AttenuationController.controller_number) {
123              switch (pDimRgn->LFO2Controller) {                  CrossfadeSmoother.update(AbstractEngine::CrossfadeCurve[CrossfadeAttenuation(itEvent->Param.CC.Value)]);
                 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  
124              }              }
             pLFO2->Trigger(pDimRgn->LFO2Frequency,  
                           lfo2_internal_depth,  
                           pDimRgn->LFO2ControlDepth,  
                           pEngine->ControllerTable[pLFO2->ExtController],  
                           pDimRgn->LFO2FlipPhase,  
                           pEngine->SampleRate,  
                           Delay);  
125          }          }
126      #endif // ENABLE_FILTER      }
127    
128          // setup LFO 3 (VCO LFO)      void Voice::ProcessChannelPressureEvent(RTList<Event>::Iterator& itEvent) {
129          {          if (itEvent->Type == Event::type_channel_pressure) { // if (valid) MIDI channel pressure (aftertouch) event
130              uint16_t lfo3_internal_depth;              if (pRegion->AttenuationController.type == ::gig::attenuation_ctrl_t::type_channelaftertouch) {
131              switch (pDimRgn->LFO3Controller) {                  CrossfadeSmoother.update(AbstractEngine::CrossfadeCurve[CrossfadeAttenuation(itEvent->Param.ChannelPressure.Value)]);
                 case ::gig::lfo3_ctrl_internal:  
                     lfo3_internal_depth  = pDimRgn->LFO3InternalDepth;  
                     pLFO3->ExtController = 0; // no external controller  
                     break;  
                 case ::gig::lfo3_ctrl_modwheel:  
                     lfo3_internal_depth  = 0;  
                     pLFO3->ExtController = 1; // MIDI controller 1  
                     break;  
                 case ::gig::lfo3_ctrl_aftertouch:  
                     lfo3_internal_depth  = 0;  
                     pLFO3->ExtController = 0; // TODO: aftertouch not implemented yet  
                     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  
132              }              }
             pLFO3->Trigger(pDimRgn->LFO3Frequency,  
                           lfo3_internal_depth,  
                           pDimRgn->LFO3ControlDepth,  
                           pEngine->ControllerTable[pLFO3->ExtController],  
                           false,  
                           pEngine->SampleRate,  
                           Delay);  
133          }          }
134        }
135    
136      #if ENABLE_FILTER      void Voice::ProcessPolyphonicKeyPressureEvent(RTList<Event>::Iterator& itEvent) {
137          #if FORCE_FILTER_USAGE          // Not used so far
138          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  
   
             #ifndef OVERRIDE_FILTER_TYPE  
             FilterLeft.SetType(pDimRgn->VCFType);  
             FilterRight.SetType(pDimRgn->VCFType);  
             #else // override filter type  
             FilterLeft.SetType(OVERRIDE_FILTER_TYPE);  
             FilterRight.SetType(OVERRIDE_FILTER_TYPE);  
             #endif // OVERRIDE_FILTER_TYPE  
   
             VCFCutoffCtrl.value    = pEngine->ControllerTable[VCFCutoffCtrl.controller];  
             VCFResonanceCtrl.value = pEngine->ControllerTable[VCFResonanceCtrl.controller];  
   
             // calculate cutoff frequency  
             float cutoff = (!VCFCutoffCtrl.controller)  
                 ? exp((float) (127 - pNoteOnEvent->Velocity) * (float) pDimRgn->VCFVelocityScale * 6.2E-5f * FILTER_CUTOFF_COEFF) * FILTER_CUTOFF_MAX  
                 : exp((float) VCFCutoffCtrl.value * 0.00787402f * FILTER_CUTOFF_COEFF) * FILTER_CUTOFF_MAX;  
   
             // calculate resonance  
             float resonance = (float) VCFResonanceCtrl.value * 0.00787f;   // 0.0..1.0  
             if (pDimRgn->VCFKeyboardTracking) {  
                 resonance += (float) (pNoteOnEvent->Key - pDimRgn->VCFKeyboardTrackingBreakpoint) * 0.00787f;  
             }  
             Constrain(resonance, 0.0, 1.0); // correct resonance if outside allowed value range (0.0..1.0)  
   
             VCFCutoffCtrl.fvalue    = cutoff - FILTER_CUTOFF_MIN;  
             VCFResonanceCtrl.fvalue = resonance;  
139    
140              FilterLeft.SetParameters(cutoff,  resonance, pEngine->SampleRate);      void Voice::ProcessCutoffEvent(RTList<Event>::Iterator& itEvent) {
141              FilterRight.SetParameters(cutoff, resonance, pEngine->SampleRate);          int ccvalue = itEvent->Param.CC.Value;
142            if (VCFCutoffCtrl.value == ccvalue) return;
143            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              FilterUpdateCounter = -1;          VCFCutoffCtrl.fvalue = cutoff; // needed for initialization of fFinalCutoff next time
150          }          fFinalCutoff = cutoff;
         else {  
             VCFCutoffCtrl.controller    = 0;  
             VCFResonanceCtrl.controller = 0;  
         }  
     #endif // ENABLE_FILTER  
   
         return 0; // success  
151      }      }
152    
153      /**      double Voice::CalculateCrossfadeVolume(uint8_t MIDIKeyVelocity) {
154       *  Renders the audio data for this voice for the current audio fragment.          float crossfadeVolume;
155       *  The sample input data can either come from RAM (cached sample or sample          switch (pRegion->AttenuationController.type) {
156       *  part) or directly from disk. The output signal will be rendered by              case ::gig::attenuation_ctrl_t::type_channelaftertouch:
157       *  resampling / interpolation. If this voice is a disk streaming voice and                  crossfadeVolume = Engine::CrossfadeCurve[CrossfadeAttenuation(GetGigEngineChannel()->ControllerTable[128])];
      *  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, pKillEvent);  
     #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;  
                             KillImmediately();  
                             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);  
                 }  
158                  break;                  break;
159                case ::gig::attenuation_ctrl_t::type_velocity:
160              case playback_state_end:                  crossfadeVolume = Engine::CrossfadeCurve[CrossfadeAttenuation(MIDIKeyVelocity)];
                 KillImmediately(); // free voice  
161                  break;                  break;
162                case ::gig::attenuation_ctrl_t::type_controlchange: //FIXME: currently not sample accurate
163                    crossfadeVolume = Engine::CrossfadeCurve[CrossfadeAttenuation(GetGigEngineChannel()->ControllerTable[pRegion->AttenuationController.controller_number])];
164                    break;
165                case ::gig::attenuation_ctrl_t::type_none: // no crossfade defined
166                default:
167                    crossfadeVolume = 1.0f;
168          }          }
169    
170            return crossfadeVolume;
171        }
172    
173          // Reset synthesis event lists (except VCO, as VCO events apply channel wide currently)      double Voice::GetEG1ControllerValue(uint8_t MIDIKeyVelocity) {
174          pEngine->pSynthesisEvents[Event::destination_vca]->clear();          double eg1controllervalue = 0;
175      #if ENABLE_FILTER          switch (pRegion->EG1Controller.type) {
176          pEngine->pSynthesisEvents[Event::destination_vcfc]->clear();              case ::gig::eg1_ctrl_t::type_none: // no controller defined
177          pEngine->pSynthesisEvents[Event::destination_vcfr]->clear();                  eg1controllervalue = 0;
178      #endif // ENABLE_FILTER                  break;
179                case ::gig::eg1_ctrl_t::type_channelaftertouch:
180          // Reset delay                  eg1controllervalue = GetGigEngineChannel()->ControllerTable[128];
181          Delay = 0;                  break;
182                case ::gig::eg1_ctrl_t::type_velocity:
183          pTriggerEvent = NULL;                  eg1controllervalue = MIDIKeyVelocity;
184                    break;
185          // If release stage finished, let the voice be killed              case ::gig::eg1_ctrl_t::type_controlchange: // MIDI control change controller
186          if (pEG1->GetStage() == EGADSR::stage_end) this->PlaybackState = playback_state_end;                  eg1controllervalue = GetGigEngineChannel()->ControllerTable[pRegion->EG1Controller.controller_number];
187      }                  break;
   
     /**  
      *  Resets voice variables. Should only be called if rendering process is  
      *  suspended / not running.  
      */  
     void Voice::Reset() {  
         pLFO1->Reset();  
         pLFO2->Reset();  
         pLFO3->Reset();  
         DiskStreamRef.pStream = NULL;  
         DiskStreamRef.hStream = 0;  
         DiskStreamRef.State   = Stream::state_unused;  
         DiskStreamRef.OrderID = 0;  
         Active = false;  
     }  
   
     /**  
      *  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  
         Event* pCCEvent = pEngine->pCCEvents->first();  
         if (Delay) { // skip events that happened before this voice was triggered  
             while (pCCEvent && pCCEvent->FragmentPos() <= Delay) pCCEvent = pEngine->pCCEvents->next();  
         }  
         while (pCCEvent) {  
             if (pCCEvent->Controller) { // if valid MIDI controller  
                 #if ENABLE_FILTER  
                 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();  
         }  
   
   
         // process pitch events  
         {  
             RTEList<Event>* pVCOEventList = pEngine->pSynthesisEvents[Event::destination_vco];  
             Event* pVCOEvent = pVCOEventList->first();  
             if (Delay) { // skip events that happened before this voice was triggered  
                 while (pVCOEvent && pVCOEvent->FragmentPos() <= Delay) pVCOEvent = pVCOEventList->next();  
             }  
             // apply old pitchbend value until first pitch event occurs  
             if (this->PitchBend != 1.0) {  
                 uint end = (pVCOEvent) ? pVCOEvent->FragmentPos() : Samples;  
                 for (uint i = Delay; i < end; i++) {  
                     pEngine->pSynthesisParameters[Event::destination_vco][i] *= this->PitchBend;  
                 }  
             }  
             float pitch;  
             while (pVCOEvent) {  
                 Event* pNextVCOEvent = pVCOEventList->next();  
   
                 // calculate the influence length of this event (in sample points)  
                 uint end = (pNextVCOEvent) ? pNextVCOEvent->FragmentPos() : Samples;  
   
                 pitch = RTMath::CentsToFreqRatio(((double) pVCOEvent->Pitch / 8192.0) * 200.0); // +-two semitones = +-200 cents  
   
                 // apply pitch value to the pitch parameter sequence  
                 for (uint i = pVCOEvent->FragmentPos(); i < end; i++) {  
                     pEngine->pSynthesisParameters[Event::destination_vco][i] *= pitch;  
                 }  
   
                 pVCOEvent = pNextVCOEvent;  
             }  
             if (pVCOEventList->last()) this->PitchBend = pitch;  
188          }          }
189            if (pRegion->EG1ControllerInvert) eg1controllervalue = 127 - eg1controllervalue;
190    
191          // process volume / attenuation events (TODO: we only handle and _expect_ crossfade events here ATM !)          return eg1controllervalue;
192          {      }
             RTEList<Event>* pVCAEventList = pEngine->pSynthesisEvents[Event::destination_vca];  
             Event* pVCAEvent = pVCAEventList->first();  
             if (Delay) { // skip events that happened before this voice was triggered  
                 while (pVCAEvent && pVCAEvent->FragmentPos() <= Delay) pVCAEvent = pVCAEventList->next();  
             }  
             float crossfadevolume;  
             while (pVCAEvent) {  
                 Event* pNextVCAEvent = pVCAEventList->next();  
   
                 // calculate the influence length of this event (in sample points)  
                 uint end = (pNextVCAEvent) ? pNextVCAEvent->FragmentPos() : Samples;  
   
                 crossfadevolume = CrossfadeAttenuation(pVCAEvent->Value);  
   
                 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;  
                 }  
193    
194                  pVCAEvent = pNextVCAEvent;      Voice::EGInfo Voice::CalculateEG1ControllerInfluence(double eg1ControllerValue) {
195              }          EGInfo eg;
196              if (pVCAEventList->last()) this->CrossfadeVolume = crossfadevolume;          // (eg1attack is different from the others)
197            if (pRegion->EG1Attack < 1e-8 && // attack in gig == 0
198                (pRegion->EG1ControllerAttackInfluence == 0 ||
199                 eg1ControllerValue <= 10)) { // strange GSt special case
200                eg.Attack = 0; // this will force the attack to be 0 in the call to EG1.trigger
201            } else {
202                eg.Attack  = (pRegion->EG1ControllerAttackInfluence)  ?
203                    1 + 0.031 * (double) (pRegion->EG1ControllerAttackInfluence == 1 ?
204                                          1 : 1 << pRegion->EG1ControllerAttackInfluence) * eg1ControllerValue : 1.0;
205            }
206            eg.Decay   = (pRegion->EG1ControllerDecayInfluence)   ? 1 + 0.00775 * (double) (1 << pRegion->EG1ControllerDecayInfluence)   * eg1ControllerValue : 1.0;
207            eg.Release = (pRegion->EG1ControllerReleaseInfluence) ? 1 + 0.00775 * (double) (1 << pRegion->EG1ControllerReleaseInfluence) * eg1ControllerValue : 1.0;
208    
209            return eg;
210        }
211    
212        double Voice::GetEG2ControllerValue(uint8_t MIDIKeyVelocity) {
213            double eg2controllervalue = 0;
214            switch (pRegion->EG2Controller.type) {
215                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      #if ENABLE_FILTER          return eg2controllervalue;
231          // 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;  
232    
233                  cutoff = exp((float) pCutoffEvent->Value * 0.00787402f * FILTER_CUTOFF_COEFF) * FILTER_CUTOFF_MAX - FILTER_CUTOFF_MIN;      Voice::EGInfo Voice::CalculateEG2ControllerInfluence(double eg2ControllerValue) {
234            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                  // apply cutoff frequency to the cutoff parameter sequence          return eg;
240                  for (uint i = pCutoffEvent->FragmentPos(); i < end; i++) {      }
                     pEngine->pSynthesisParameters[Event::destination_vcfc][i] = cutoff;  
                 }  
241    
242                  pCutoffEvent = pNextCutoffEvent;      void Voice::InitLFO1() {
243              }          uint16_t lfo1_internal_depth;
244              if (pCutoffEventList->last()) VCFCutoffCtrl.fvalue = cutoff; // needed for initialization of parameter matrix next time          switch (pRegion->LFO1Controller) {
245                case ::gig::lfo1_ctrl_internal:
246                    lfo1_internal_depth  = pRegion->LFO1InternalDepth;
247                    pLFO1->ExtController = 0; // no external controller
248                    bLFO1Enabled         = (lfo1_internal_depth > 0);
249                    break;
250                case ::gig::lfo1_ctrl_modwheel:
251                    lfo1_internal_depth  = 0;
252                    pLFO1->ExtController = 1; // MIDI controller 1
253                    bLFO1Enabled         = (pRegion->LFO1ControlDepth > 0);
254                    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(pNote->Override.AmpLFODepth);
284                pLFO1->setScriptFrequencyFactor(pNote->Override.AmpLFOFreq, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
285          }          }
286        }
287    
288          // process filter resonance events      void Voice::InitLFO2() {
289          {          uint16_t lfo2_internal_depth;
290              RTEList<Event>* pResonanceEventList = pEngine->pSynthesisEvents[Event::destination_vcfr];          switch (pRegion->LFO2Controller) {
291              Event* pResonanceEvent = pResonanceEventList->first();              case ::gig::lfo2_ctrl_internal:
292              if (Delay) { // skip events that happened before this voice was triggered                  lfo2_internal_depth  = pRegion->LFO2InternalDepth;
293                  while (pResonanceEvent && pResonanceEvent->FragmentPos() <= Delay) pResonanceEvent = pResonanceEventList->next();                  pLFO2->ExtController = 0; // no external controller
294              }                  bLFO2Enabled         = (lfo2_internal_depth > 0);
295              while (pResonanceEvent) {                  break;
296                  Event* pNextResonanceEvent = pResonanceEventList->next();              case ::gig::lfo2_ctrl_modwheel:
297                    lfo2_internal_depth  = 0;
298                  // calculate the influence length of this event (in sample points)                  pLFO2->ExtController = 1; // MIDI controller 1
299                  uint end = (pNextResonanceEvent) ? pNextResonanceEvent->FragmentPos() : Samples;                  bLFO2Enabled         = (pRegion->LFO2ControlDepth > 0);
300                    break;
301                  // convert absolute controller value to differential              case ::gig::lfo2_ctrl_foot:
302                  int ctrldelta = pResonanceEvent->Value - VCFResonanceCtrl.value;                  lfo2_internal_depth  = 0;
303                  VCFResonanceCtrl.value = pResonanceEvent->Value;                  pLFO2->ExtController = 4; // MIDI controller 4
304                    bLFO2Enabled         = (pRegion->LFO2ControlDepth > 0);
305                  float resonancedelta = (float) ctrldelta * 0.00787f; // 0.0..1.0                  break;
306                case ::gig::lfo2_ctrl_internal_modwheel:
307                  // apply cutoff frequency to the cutoff parameter sequence                  lfo2_internal_depth  = pRegion->LFO2InternalDepth;
308                  for (uint i = pResonanceEvent->FragmentPos(); i < end; i++) {                  pLFO2->ExtController = 1; // MIDI controller 1
309                      pEngine->pSynthesisParameters[Event::destination_vcfr][i] += resonancedelta;                  bLFO2Enabled         = (lfo2_internal_depth > 0 || pRegion->LFO2ControlDepth > 0);
310                  }                  break;
311                case ::gig::lfo2_ctrl_internal_foot:
312                  pResonanceEvent = pNextResonanceEvent;                  lfo2_internal_depth  = pRegion->LFO2InternalDepth;
313              }                  pLFO2->ExtController = 4; // MIDI controller 4
314              if (pResonanceEventList->last()) VCFResonanceCtrl.fvalue = pResonanceEventList->last()->Value * 0.00787f; // needed for initialization of parameter matrix next time                  bLFO2Enabled         = (lfo2_internal_depth > 0 || pRegion->LFO2ControlDepth > 0);
315                    break;
316                default:
317                    lfo2_internal_depth  = 0;
318                    pLFO2->ExtController = 0; // no external controller
319                    bLFO2Enabled         = false;
320            }
321            if (bLFO2Enabled) {
322                pLFO2->trigger(pRegion->LFO2Frequency,
323                               start_level_max,
324                               lfo2_internal_depth,
325                               pRegion->LFO2ControlDepth,
326                               pRegion->LFO2FlipPhase,
327                               pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
328                pLFO2->updateByMIDICtrlValue(pLFO2->ExtController ? GetGigEngineChannel()->ControllerTable[pLFO2->ExtController] : 0);
329                pLFO2->setScriptDepthFactor(pNote->Override.CutoffLFODepth);
330                pLFO2->setScriptFrequencyFactor(pNote->Override.CutoffLFOFreq, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
331          }          }
     #endif // ENABLE_FILTER  
332      }      }
333    
334      #if ENABLE_FILTER      void Voice::InitLFO3() {
335      /**          uint16_t lfo3_internal_depth;
336       * Calculate all necessary, final biquad filter parameters.          switch (pRegion->LFO3Controller) {
337       *              case ::gig::lfo3_ctrl_internal:
338       * @param Samples - number of samples to be rendered in this audio fragment cycle                  lfo3_internal_depth  = pRegion->LFO3InternalDepth;
339       */                  pLFO3->ExtController = 0; // no external controller
340      void Voice::CalculateBiquadParameters(uint Samples) {                  bLFO3Enabled         = (lfo3_internal_depth > 0);
341          if (!FilterLeft.Enabled) return;                  break;
342                case ::gig::lfo3_ctrl_modwheel:
343          biquad_param_t bqbase;                  lfo3_internal_depth  = 0;
344          biquad_param_t bqmain;                  pLFO3->ExtController = 1; // MIDI controller 1
345          float prev_cutoff = pEngine->pSynthesisParameters[Event::destination_vcfc][0];                  bLFO3Enabled         = (pRegion->LFO3ControlDepth > 0);
346          float prev_res    = pEngine->pSynthesisParameters[Event::destination_vcfr][0];                  break;
347          FilterLeft.SetParameters(&bqbase, &bqmain, prev_cutoff, prev_res, pEngine->SampleRate);              case ::gig::lfo3_ctrl_aftertouch:
348          pEngine->pBasicFilterParameters[0] = bqbase;                  lfo3_internal_depth  = 0;
349          pEngine->pMainFilterParameters[0]  = bqmain;                  pLFO3->ExtController = CTRL_TABLE_IDX_AFTERTOUCH;
350                    bLFO3Enabled         = true;
351          float* bq;                  break;
352          for (int i = 1; i < Samples; i++) {              case ::gig::lfo3_ctrl_internal_modwheel:
353              // recalculate biquad parameters if cutoff or resonance differ from previous sample point                  lfo3_internal_depth  = pRegion->LFO3InternalDepth;
354              if (!(i & FILTER_UPDATE_MASK)) if (pEngine->pSynthesisParameters[Event::destination_vcfr][i] != prev_res ||                  pLFO3->ExtController = 1; // MIDI controller 1
355                                                 pEngine->pSynthesisParameters[Event::destination_vcfc][i] != prev_cutoff) {                  bLFO3Enabled         = (lfo3_internal_depth > 0 || pRegion->LFO3ControlDepth > 0);
356                  prev_cutoff = pEngine->pSynthesisParameters[Event::destination_vcfc][i];                  break;
357                  prev_res    = pEngine->pSynthesisParameters[Event::destination_vcfr][i];              case ::gig::lfo3_ctrl_internal_aftertouch:
358                  FilterLeft.SetParameters(&bqbase, &bqmain, prev_cutoff, prev_res, pEngine->SampleRate);                  lfo3_internal_depth  = pRegion->LFO3InternalDepth;
359              }                  pLFO3->ExtController = CTRL_TABLE_IDX_AFTERTOUCH;
360                    bLFO3Enabled         = (lfo3_internal_depth > 0 || pRegion->LFO3ControlDepth > 0);
361              //same as 'pEngine->pBasicFilterParameters[i] = bqbase;'                  break;
362              bq    = (float*) &pEngine->pBasicFilterParameters[i];              default:
363              bq[0] = bqbase.a1;                  lfo3_internal_depth  = 0;
364              bq[1] = bqbase.a2;                  pLFO3->ExtController = 0; // no external controller
365              bq[2] = bqbase.b0;                  bLFO3Enabled         = false;
366              bq[3] = bqbase.b1;          }
367              bq[4] = bqbase.b2;          if (bLFO3Enabled) {
368                pLFO3->trigger(pRegion->LFO3Frequency,
369              // same as 'pEngine->pMainFilterParameters[i] = bqmain;'                             start_level_mid,
370              bq    = (float*) &pEngine->pMainFilterParameters[i];                             lfo3_internal_depth,
371              bq[0] = bqmain.a1;                             pRegion->LFO3ControlDepth,
372              bq[1] = bqmain.a2;                             false,
373              bq[2] = bqmain.b0;                             pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
374              bq[3] = bqmain.b1;              pLFO3->updateByMIDICtrlValue(pLFO3->ExtController ? GetGigEngineChannel()->ControllerTable[pLFO3->ExtController] : 0);
375              bq[4] = bqmain.b2;              pLFO3->setScriptDepthFactor(pNote->Override.PitchLFODepth);
376                pLFO3->setScriptFrequencyFactor(pNote->Override.PitchLFOFreq, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
377          }          }
378      }      }
     #endif // ENABLE_FILTER  
379    
380      /**      float Voice::CalculateCutoffBase(uint8_t MIDIKeyVelocity) {
381       *  Interpolates the input audio data (no loop).          float cutoff = pRegion->GetVelocityCutoff(MIDIKeyVelocity);
382       *          if (pRegion->VCFKeyboardTracking) {
383       *  @param Samples - number of sample points to be rendered in this audio              cutoff *= RTMath::CentsToFreqRatioUnlimited((MIDIKey() - pRegion->VCFKeyboardTrackingBreakpoint) * 100);
384       *                   fragment cycle          }
385       *  @param pSrc    - pointer to input sample data          return cutoff;
386       *  @param Skip    - number of sample points to skip in output buffer      }
387       */  
388      void Voice::Interpolate(uint Samples, sample_t* pSrc, uint Skip) {      float Voice::CalculateFinalCutoff(float cutoffBase) {
389          int i = Skip;          int cvalue;
390            if (VCFCutoffCtrl.controller) {
391          // FIXME: assuming either mono or stereo              cvalue = GetGigEngineChannel()->ControllerTable[VCFCutoffCtrl.controller];
392          if (this->pSample->Channels == 2) { // Stereo Sample              if (pRegion->VCFCutoffControllerInvert) cvalue = 127 - cvalue;
393              while (i < Samples) {              // VCFVelocityScale in this case means Minimum cutoff
394                  InterpolateOneStep_Stereo(pSrc, i,              if (cvalue < pRegion->VCFVelocityScale) cvalue = pRegion->VCFVelocityScale;
                                           pEngine->pSynthesisParameters[Event::destination_vca][i],  
                                           pEngine->pSynthesisParameters[Event::destination_vco][i],  
                                           pEngine->pBasicFilterParameters[i],  
                                           pEngine->pMainFilterParameters[i]);  
             }  
395          }          }
396          else { // Mono Sample          else {
397              while (i < Samples) {              cvalue = pRegion->VCFCutoff;
                 InterpolateOneStep_Mono(pSrc, i,  
                                         pEngine->pSynthesisParameters[Event::destination_vca][i],  
                                         pEngine->pSynthesisParameters[Event::destination_vco][i],  
                                         pEngine->pBasicFilterParameters[i],  
                                         pEngine->pMainFilterParameters[i]);  
             }  
398          }          }
399            float fco = cutoffBase * float(cvalue);
400            if (fco > 127.0f) fco = 127.0f;
401    
402            return fco;
403      }      }
404    
405      /**      uint8_t Voice::GetVCFCutoffCtrl() {
406       *  Interpolates the input audio data, this method honors looping.          uint8_t ctrl;
407       *          switch (pRegion->VCFCutoffController) {
408       *  @param Samples - number of sample points to be rendered in this audio              case ::gig::vcf_cutoff_ctrl_modwheel:
409       *                   fragment cycle                  ctrl = 1;
410       *  @param pSrc    - pointer to input sample data                  break;
411       *  @param Skip    - number of sample points to skip in output buffer              case ::gig::vcf_cutoff_ctrl_effect1:
412       */                  ctrl = 12;
413      void Voice::InterpolateAndLoop(uint Samples, sample_t* pSrc, uint Skip) {                  break;
414          int i = Skip;              case ::gig::vcf_cutoff_ctrl_effect2:
415                    ctrl = 13;
416          // FIXME: assuming either mono or stereo                  break;
417          if (pSample->Channels == 2) { // Stereo Sample              case ::gig::vcf_cutoff_ctrl_breath:
418              if (pSample->LoopPlayCount) {                  ctrl = 2;
419                  // render loop (loop count limited)                  break;
420                  while (i < Samples && LoopCyclesLeft) {              case ::gig::vcf_cutoff_ctrl_foot:
421                      InterpolateOneStep_Stereo(pSrc, i,                  ctrl = 4;
422                                                pEngine->pSynthesisParameters[Event::destination_vca][i],                  break;
423                                                pEngine->pSynthesisParameters[Event::destination_vco][i],              case ::gig::vcf_cutoff_ctrl_sustainpedal:
424                                                pEngine->pBasicFilterParameters[i],                  ctrl = 64;
425                                                pEngine->pMainFilterParameters[i]);                  break;
426                      if (Pos > pSample->LoopEnd) {              case ::gig::vcf_cutoff_ctrl_softpedal:
427                          Pos = pSample->LoopStart + fmod(Pos - pSample->LoopEnd, pSample->LoopSize);;                  ctrl = 67;
428                          LoopCyclesLeft--;                  break;
429                      }              case ::gig::vcf_cutoff_ctrl_genpurpose7:
430                  }                  ctrl = 82;
431                  // render on without loop                  break;
432                  while (i < Samples) {              case ::gig::vcf_cutoff_ctrl_genpurpose8:
433                      InterpolateOneStep_Stereo(pSrc, i,                  ctrl = 83;
434                                                pEngine->pSynthesisParameters[Event::destination_vca][i],                  break;
435                                                pEngine->pSynthesisParameters[Event::destination_vco][i],              case ::gig::vcf_cutoff_ctrl_aftertouch:
436                                                pEngine->pBasicFilterParameters[i],                  ctrl = CTRL_TABLE_IDX_AFTERTOUCH;
437                                                pEngine->pMainFilterParameters[i]);                  break;
438                  }              case ::gig::vcf_cutoff_ctrl_none:
439              }              default:
440              else { // render loop (endless loop)                  ctrl = 0;
441                  while (i < Samples) {                  break;
                     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);;  
                     }  
                 }  
             }  
442          }          }
443    
444            return ctrl;
445      }      }
446    
447      /**      uint8_t Voice::GetVCFResonanceCtrl() {
448       *  Immediately kill the voice. This method should not be used to kill          uint8_t ctrl;
449       *  a normal, active voice, because it doesn't take care of things like          switch (pRegion->VCFResonanceController) {
450       *  fading down the volume level to avoid clicks and regular processing              case ::gig::vcf_res_ctrl_genpurpose3:
451       *  until the kill event actually occured!                  ctrl = 18;
452       *                  break;
453       *  @see Kill()              case ::gig::vcf_res_ctrl_genpurpose4:
454       */                  ctrl = 19;
455      void Voice::KillImmediately() {                  break;
456          if (DiskVoice && DiskStreamRef.State != Stream::state_unused) {              case ::gig::vcf_res_ctrl_genpurpose5:
457              pDiskThread->OrderDeletionOfStream(&DiskStreamRef);                  ctrl = 80;
458                    break;
459                case ::gig::vcf_res_ctrl_genpurpose6:
460                    ctrl = 81;
461                    break;
462                case ::gig::vcf_res_ctrl_none:
463                default:
464                    ctrl = 0;
465          }          }
466          Reset();  
467            return ctrl;
468      }      }
469    
470      /**      void Voice::TriggerEG1(const EGInfo& egInfo, double velrelease, double velocityAttenuation, uint sampleRate, uint8_t velocity) {
471       *  Kill the voice in regular sense. Let the voice render audio until          EG1.setStateOptions(
472       *  the kill event actually occured and then fade down the volume level              pRegion->EG1Options.AttackCancel,
473       *  very quickly and let the voice die finally. Unlike a normal release              pRegion->EG1Options.AttackHoldCancel,
474       *  of a voice, a kill process cannot be cancalled and is therefore              pRegion->EG1Options.Decay1Cancel,
475       *  usually used for voice stealing and key group conflicts.              pRegion->EG1Options.Decay2Cancel,
476       *              pRegion->EG1Options.ReleaseCancel
477       *  @param pKillEvent - event which caused the voice to be killed          );
478       */          EG1.trigger(pRegion->EG1PreAttack,
479      void Voice::Kill(Event* pKillEvent) {                      RTMath::Max(pRegion->EG1Attack, 0.0316) * egInfo.Attack,
480          if (pTriggerEvent && pKillEvent->FragmentPos() <= pTriggerEvent->FragmentPos()) return;                      pRegion->EG1Hold,
481          this->pKillEvent = pKillEvent;                      pRegion->EG1Decay1 * egInfo.Decay * velrelease,
482                        pRegion->EG1Decay2 * egInfo.Decay * velrelease,
483                        pRegion->EG1InfiniteSustain,
484                        pRegion->EG1Sustain * (pNote ? pNote->Override.Sustain : 1.f),
485                        RTMath::Max(pRegion->EG1Release * velrelease, 0.014) * egInfo.Release,
486                        velocityAttenuation,
487                        sampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
488        }
489    
490        void Voice::TriggerEG2(const EGInfo& egInfo, double velrelease, double velocityAttenuation, uint sampleRate, uint8_t velocity) {
491            EG2.setStateOptions(
492                pRegion->EG2Options.AttackCancel,
493                pRegion->EG2Options.AttackHoldCancel,
494                pRegion->EG2Options.Decay1Cancel,
495                pRegion->EG2Options.Decay2Cancel,
496                pRegion->EG2Options.ReleaseCancel
497            );
498            EG2.trigger(uint(RgnInfo.EG2PreAttack),
499                        RgnInfo.EG2Attack * egInfo.Attack,
500                        false,
501                        RgnInfo.EG2Decay1 * egInfo.Decay * velrelease,
502                        RgnInfo.EG2Decay2 * egInfo.Decay * velrelease,
503                        RgnInfo.EG2InfiniteSustain,
504                        uint(RgnInfo.EG2Sustain),
505                        RgnInfo.EG2Release * egInfo.Release * velrelease,
506                        velocityAttenuation,
507                        sampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
508        }
509    
510        void Voice::ProcessGroupEvent(RTList<Event>::Iterator& itEvent) {
511            dmsg(4,("Voice %p processGroupEvents event type=%d", (void*)this, itEvent->Type));
512    
513            // TODO: The SustainPedal condition could be wrong, maybe the
514            // check should be if this Voice is in release stage or is a
515            // release sample instead. Need to test this in GSt.
516            // -- Andreas
517            //
518            // Commented sustain pedal check out. I don't think voices of the same
519            // note should be stopped at all, because it doesn't sound naturally
520            // with a drumkit.
521            // -- Christian, 2013-01-08
522            if (itEvent->Param.Note.Key != HostKey() /*||
523                !GetGigEngineChannel()->SustainPedal*/) {
524                dmsg(4,("Voice %p - kill", (void*)this));
525    
526                // kill the voice fast
527                pEG1->enterFadeOutStage();
528            }
529        }
530    
531        void Voice::CalculateFadeOutCoeff(float FadeOutTime, float SampleRate) {
532            EG1.CalculateFadeOutCoeff(FadeOutTime, SampleRate);
533        }
534    
535        int Voice::CalculatePan(uint8_t pan) {
536            int p;
537            // Gst behaviour: -64 and 63 are special cases
538            if (RgnInfo.Pan == -64)     p = pan * 2 - 127;
539            else if (RgnInfo.Pan == 63) p = pan * 2;
540            else                        p = pan + RgnInfo.Pan;
541    
542            if (p < 0) return 0;
543            if (p > 127) return 127;
544            return p;
545        }
546    
547        release_trigger_t Voice::GetReleaseTriggerFlags() {
548            release_trigger_t flags = 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
549            switch (pRegion->SustainReleaseTrigger) {
550                case ::gig::sust_rel_trg_none:
551                    break;
552                case ::gig::sust_rel_trg_maxvelocity:
553                    flags |= release_trigger_sustain_maxvelocity;
554                    break;
555                case ::gig::sust_rel_trg_keyvelocity:
556                    flags |= release_trigger_sustain_keyvelocity;
557                    break;
558            }
559            return flags;
560      }      }
561    
562  }} // namespace LinuxSampler::gig  }} // namespace LinuxSampler::gig
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