/[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 244 by schoenebeck, Fri Sep 17 01:01:11 2004 UTC revision 3017 by schoenebeck, Wed Oct 19 12:28:40 2016 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 - 2015 Christian Schoenebeck and Grigor Iliev      *
8   *                                                                         *   *                                                                         *
9   *   This program is free software; you can redistribute it and/or modify  *   *   This program is free software; you can redistribute it and/or modify  *
10   *   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 22 
22   *   MA  02111-1307  USA                                                   *   *   MA  02111-1307  USA                                                   *
23   ***************************************************************************/   ***************************************************************************/
24    
25  #include "EGADSR.h"  #include "../../common/Features.h"
26  #include "Manipulator.h"  #include "Synthesizer.h"
27    #include "Profiler.h"
28    #include "Engine.h"
29    #include "EngineChannel.h"
30    
31  #include "Voice.h"  #include "Voice.h"
32    
33  namespace LinuxSampler { namespace gig {  namespace LinuxSampler { namespace gig {
34    
35      const float Voice::FILTER_CUTOFF_COEFF(CalculateFilterCutoffCoeff());      Voice::Voice() {
36            pEngine = NULL;
37      const int Voice::FILTER_UPDATE_MASK(CalculateFilterUpdateMask());          pEG1 = &EG1;
38            pEG2 = &EG2;
     float Voice::CalculateFilterCutoffCoeff() {  
         return log(FILTER_CUTOFF_MIN / FILTER_CUTOFF_MAX);  
39      }      }
40    
41      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;  
42      }      }
43    
44      Voice::Voice() {      EngineChannel* Voice::GetGigEngineChannel() {
45          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;  
46      }      }
47    
48      Voice::~Voice() {      void Voice::SetEngine(LinuxSampler::Engine* pEngine) {
49          if (pEG1)  delete pEG1;          Engine* engine = static_cast<Engine*>(pEngine);
50          if (pEG2)  delete pEG2;          this->pEngine     = engine;
51          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;  
52          dmsg(6,("Voice::SetEngine()\n"));          dmsg(6,("Voice::SetEngine()\n"));
53      }      }
54    
55      /**      Voice::SampleInfo Voice::GetSampleInfo() {
56       *  Initializes and triggers the voice, a disk stream will be launched if          SampleInfo si;
57       *  needed.          si.SampleRate       = pSample->SamplesPerSecond;
58       *          si.ChannelCount     = pSample->Channels;
59       *  @param pNoteOnEvent        - event that caused triggering of this voice          si.FrameSize        = pSample->FrameSize;
60       *  @param PitchBend           - MIDI detune factor (-8192 ... +8191)          si.BitDepth         = pSample->BitDepth;
61       *  @param pInstrument         - points to the loaded instrument which provides sample wave(s) and articulation data          si.TotalFrameCount  = 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);  
         }  
62    
63          Type            = type_normal;          si.HasLoops       = pRegion->SampleLoops;
64          Active          = true;          si.LoopStart      = (si.HasLoops) ? pRegion->pSampleLoops[0].LoopStart  : 0;
65          MIDIKey         = pNoteOnEvent->Key;          si.LoopLength     = (si.HasLoops) ? pRegion->pSampleLoops[0].LoopLength : 0;
66          pRegion         = pInstrument->GetRegion(MIDIKey);          si.LoopPlayCount  = pSample->LoopPlayCount;
67          PlaybackState   = playback_state_ram; // we always start playback from RAM cache and switch then to disk if needed          si.Unpitched      = !pRegion->PitchTrack;
         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;  
   
         if (DiskVoice) { // voice to be streamed from disk  
             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)  
   
             // check if there's a loop defined which completely fits into the cached (RAM) part of the sample  
             if (pSample->Loops && pSample->LoopEnd <= MaxRAMPos) {  
                 RAMLoop        = true;  
                 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 + (int) pEngine->ScaleTuning[MIDIKey % 12];  
             if (pDimRgn->PitchTrack) pitchbasecents += (MIDIKey - (int) pDimRgn->UnityNote) * 100;  
             this->PitchBase = RTMath::CentsToFreqRatio(pitchbasecents) * (double(pSample->SamplesPerSecond) / double(pEngine->pAudioOutputDevice->SampleRate()));  
             this->PitchBend = RTMath::CentsToFreqRatio(((double) PitchBend / 8192.0) * 200.0); // pitchbend wheel +-2 semitones = 200 cents  
         }  
68    
69            return si;
70        }
71    
72          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() {
73            RegionInfo ri;
74            ri.UnityNote = pRegion->UnityNote;
75            ri.FineTune  = pRegion->FineTune;
76            ri.Pan       = pRegion->Pan;
77            ri.SampleStartOffset = pRegion->SampleStartOffset;
78    
79            ri.EG2PreAttack        = pRegion->EG2PreAttack;
80            ri.EG2Attack           = pRegion->EG2Attack;
81            ri.EG2Decay1           = pRegion->EG2Decay1;
82            ri.EG2Decay2           = pRegion->EG2Decay2;
83            ri.EG2Sustain          = pRegion->EG2Sustain;
84            ri.EG2InfiniteSustain  = pRegion->EG2InfiniteSustain;
85            ri.EG2Release          = pRegion->EG2Release;
86    
87          // setup EG 1 (VCA EG)          ri.EG3Attack     = pRegion->EG3Attack;
88          {          ri.EG3Depth      = pRegion->EG3Depth;
89              // get current value of EG1 controller          ri.VCFEnabled    = pRegion->VCFEnabled;
90              double eg1controllervalue;          ri.VCFType       = Filter::vcf_type_t(pRegion->VCFType);
91              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;  
   
             // 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);  
         }  
92    
93            ri.ReleaseTriggerDecay = 0.01053 * (256 >> pRegion->ReleaseTriggerDecay);
94    
95      #if ENABLE_FILTER          return ri;
96          // setup EG 2 (VCF Cutoff EG)      }
         {  
             // 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;  
             }  
             if (pDimRgn->EG2ControllerInvert) eg2controllervalue = 127 - eg2controllervalue;  
97    
98              // calculate influence of EG2 controller on EG2's parameters (TODO: needs to be fine tuned)      Voice::InstrumentInfo Voice::GetInstrumentInfo() {
99              double eg2attack  = (pDimRgn->EG2ControllerAttackInfluence)  ? 0.0001 * (double) (1 << pDimRgn->EG2ControllerAttackInfluence)  * eg2controllervalue : 0.0;          InstrumentInfo ii;
100              double eg2decay   = (pDimRgn->EG2ControllerDecayInfluence)   ? 0.0001 * (double) (1 << pDimRgn->EG2ControllerDecayInfluence)   * eg2controllervalue : 0.0;          ii.FineTune = GetGigEngineChannel()->pInstrument->FineTune;
101              double eg2release = (pDimRgn->EG2ControllerReleaseInfluence) ? 0.0001 * (double) (1 << pDimRgn->EG2ControllerReleaseInfluence) * eg2controllervalue : 0.0;          ii.PitchbendRange = GetGigEngineChannel()->pInstrument->PitchbendRange;
   
             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  
102    
103            return ii;
104        }
105    
106          // setup EG 3 (VCO EG)      double Voice::GetSampleAttenuation() {
107          {          return pRegion->SampleAttenuation;
108            double eg3depth = RTMath::CentsToFreqRatio(pDimRgn->EG3Depth);      }
           pEG3->Trigger(eg3depth, pDimRgn->EG3Attack, Delay);  
         }  
109    
110        double Voice::GetVelocityAttenuation(uint8_t MIDIKeyVelocity) {
111            return pRegion->GetVelocityAttenuation(MIDIKeyVelocity);
112        }
113    
114          // setup LFO 1 (VCA LFO)      double Voice::GetVelocityRelease(uint8_t MIDIKeyVelocity) {
115          {          return pRegion->GetVelocityRelease(MIDIKeyVelocity);
116              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);  
         }  
117    
118      #if ENABLE_FILTER      void Voice::ProcessCCEvent(RTList<Event>::Iterator& itEvent) {
119          // setup LFO 2 (VCF Cutoff LFO)          if (itEvent->Type == Event::type_control_change && itEvent->Param.CC.Controller) { // if (valid) MIDI control change event
120          {              if (pRegion->AttenuationController.type == ::gig::attenuation_ctrl_t::type_controlchange &&
121              uint16_t lfo2_internal_depth;                  itEvent->Param.CC.Controller == pRegion->AttenuationController.controller_number) {
122              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  
123              }              }
             pLFO2->Trigger(pDimRgn->LFO2Frequency,  
                           lfo2_internal_depth,  
                           pDimRgn->LFO2ControlDepth,  
                           pEngine->ControllerTable[pLFO2->ExtController],  
                           pDimRgn->LFO2FlipPhase,  
                           pEngine->SampleRate,  
                           Delay);  
124          }          }
125      #endif // ENABLE_FILTER      }
126    
127          // setup LFO 3 (VCO LFO)      void Voice::ProcessChannelPressureEvent(RTList<Event>::Iterator& itEvent) {
128          {          if (itEvent->Type == Event::type_channel_pressure) { // if (valid) MIDI channel pressure (aftertouch) event
129              uint16_t lfo3_internal_depth;              if (pRegion->AttenuationController.type == ::gig::attenuation_ctrl_t::type_channelaftertouch) {
130              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  
131              }              }
             pLFO3->Trigger(pDimRgn->LFO3Frequency,  
                           lfo3_internal_depth,  
                           pDimRgn->LFO3ControlDepth,  
                           pEngine->ControllerTable[pLFO3->ExtController],  
                           false,  
                           pEngine->SampleRate,  
                           Delay);  
132          }          }
133        }
134    
135      #if ENABLE_FILTER      void Voice::ProcessPolyphonicKeyPressureEvent(RTList<Event>::Iterator& itEvent) {
136          #if FORCE_FILTER_USAGE          // Not used so far
137          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;  
   
             FilterLeft.SetParameters(cutoff,  resonance, pEngine->SampleRate);  
             FilterRight.SetParameters(cutoff, resonance, pEngine->SampleRate);  
138    
139              FilterUpdateCounter = -1;      void Voice::ProcessCutoffEvent(RTList<Event>::Iterator& itEvent) {
140          }          int ccvalue = itEvent->Param.CC.Value;
141          else {          if (VCFCutoffCtrl.value == ccvalue) return;
142              VCFCutoffCtrl.controller    = 0;          VCFCutoffCtrl.value = ccvalue;
143              VCFResonanceCtrl.controller = 0;          if (pRegion->VCFCutoffControllerInvert)  ccvalue = 127 - ccvalue;
144          }          if (ccvalue < pRegion->VCFVelocityScale) ccvalue = pRegion->VCFVelocityScale;
145      #endif // ENABLE_FILTER          float cutoff = CutoffBase * float(ccvalue);
146            if (cutoff > 127.0f) cutoff = 127.0f;
147    
148          return 0; // success          VCFCutoffCtrl.fvalue = cutoff; // needed for initialization of fFinalCutoff next time
149            fFinalCutoff = cutoff;
150      }      }
151    
152      /**      double Voice::CalculateCrossfadeVolume(uint8_t MIDIKeyVelocity) {
153       *  Renders the audio data for this voice for the current audio fragment.          float crossfadeVolume;
154       *  The sample input data can either come from RAM (cached sample or sample          switch (pRegion->AttenuationController.type) {
155       *  part) or directly from disk. The output signal will be rendered by              case ::gig::attenuation_ctrl_t::type_channelaftertouch:
156       *  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);  
                 }  
157                  break;                  break;
158                case ::gig::attenuation_ctrl_t::type_velocity:
159              case playback_state_end:                  crossfadeVolume = Engine::CrossfadeCurve[CrossfadeAttenuation(MIDIKeyVelocity)];
                 KillImmediately(); // free voice  
160                  break;                  break;
161                case ::gig::attenuation_ctrl_t::type_controlchange: //FIXME: currently not sample accurate
162                    crossfadeVolume = Engine::CrossfadeCurve[CrossfadeAttenuation(GetGigEngineChannel()->ControllerTable[pRegion->AttenuationController.controller_number])];
163                    break;
164                case ::gig::attenuation_ctrl_t::type_none: // no crossfade defined
165                default:
166                    crossfadeVolume = 1.0f;
167          }          }
168    
169            return crossfadeVolume;
170        }
171    
172          // Reset synthesis event lists (except VCO, as VCO events apply channel wide currently)      double Voice::GetEG1ControllerValue(uint8_t MIDIKeyVelocity) {
173          pEngine->pSynthesisEvents[Event::destination_vca]->clear();          double eg1controllervalue = 0;
174      #if ENABLE_FILTER          switch (pRegion->EG1Controller.type) {
175          pEngine->pSynthesisEvents[Event::destination_vcfc]->clear();              case ::gig::eg1_ctrl_t::type_none: // no controller defined
176          pEngine->pSynthesisEvents[Event::destination_vcfr]->clear();                  eg1controllervalue = 0;
177      #endif // ENABLE_FILTER                  break;
178                case ::gig::eg1_ctrl_t::type_channelaftertouch:
179          // Reset delay                  eg1controllervalue = GetGigEngineChannel()->ControllerTable[128];
180          Delay = 0;                  break;
181                case ::gig::eg1_ctrl_t::type_velocity:
182          pTriggerEvent = NULL;                  eg1controllervalue = MIDIKeyVelocity;
183                    break;
184          // If release stage finished, let the voice be killed              case ::gig::eg1_ctrl_t::type_controlchange: // MIDI control change controller
185          if (pEG1->GetStage() == EGADSR::stage_end) this->PlaybackState = playback_state_end;                  eg1controllervalue = GetGigEngineChannel()->ControllerTable[pRegion->EG1Controller.controller_number];
186      }                  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;  
187          }          }
188            if (pRegion->EG1ControllerInvert) eg1controllervalue = 127 - eg1controllervalue;
189    
190          // process volume / attenuation events (TODO: we only handle and _expect_ crossfade events here ATM !)          return eg1controllervalue;
191          {      }
             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;  
                 }  
192    
193                  pVCAEvent = pNextVCAEvent;      Voice::EGInfo Voice::CalculateEG1ControllerInfluence(double eg1ControllerValue) {
194              }          EGInfo eg;
195              if (pVCAEventList->last()) this->CrossfadeVolume = crossfadevolume;          // (eg1attack is different from the others)
196            if (pRegion->EG1Attack < 1e-8 && // attack in gig == 0
197                (pRegion->EG1ControllerAttackInfluence == 0 ||
198                 eg1ControllerValue <= 10)) { // strange GSt special case
199                eg.Attack = 0; // this will force the attack to be 0 in the call to EG1.trigger
200            } else {
201                eg.Attack  = (pRegion->EG1ControllerAttackInfluence)  ?
202                    1 + 0.031 * (double) (pRegion->EG1ControllerAttackInfluence == 1 ?
203                                          1 : 1 << pRegion->EG1ControllerAttackInfluence) * eg1ControllerValue : 1.0;
204            }
205            eg.Decay   = (pRegion->EG1ControllerDecayInfluence)   ? 1 + 0.00775 * (double) (1 << pRegion->EG1ControllerDecayInfluence)   * eg1ControllerValue : 1.0;
206            eg.Release = (pRegion->EG1ControllerReleaseInfluence) ? 1 + 0.00775 * (double) (1 << pRegion->EG1ControllerReleaseInfluence) * eg1ControllerValue : 1.0;
207    
208            return eg;
209        }
210    
211        double Voice::GetEG2ControllerValue(uint8_t MIDIKeyVelocity) {
212            double eg2controllervalue = 0;
213            switch (pRegion->EG2Controller.type) {
214                case ::gig::eg2_ctrl_t::type_none: // no controller defined
215                    eg2controllervalue = 0;
216                    break;
217                case ::gig::eg2_ctrl_t::type_channelaftertouch:
218                    eg2controllervalue = GetGigEngineChannel()->ControllerTable[128];
219                    break;
220                case ::gig::eg2_ctrl_t::type_velocity:
221                    eg2controllervalue = MIDIKeyVelocity;
222                    break;
223                case ::gig::eg2_ctrl_t::type_controlchange: // MIDI control change controller
224                    eg2controllervalue = GetGigEngineChannel()->ControllerTable[pRegion->EG2Controller.controller_number];
225                    break;
226          }          }
227            if (pRegion->EG2ControllerInvert) eg2controllervalue = 127 - eg2controllervalue;
228    
229      #if ENABLE_FILTER          return eg2controllervalue;
230          // 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;  
231    
232                  cutoff = exp((float) pCutoffEvent->Value * 0.00787402f * FILTER_CUTOFF_COEFF) * FILTER_CUTOFF_MAX - FILTER_CUTOFF_MIN;      Voice::EGInfo Voice::CalculateEG2ControllerInfluence(double eg2ControllerValue) {
233            EGInfo eg;
234            eg.Attack  = (pRegion->EG2ControllerAttackInfluence)  ? 1 + 0.00775 * (double) (1 << pRegion->EG2ControllerAttackInfluence)  * eg2ControllerValue : 1.0;
235            eg.Decay   = (pRegion->EG2ControllerDecayInfluence)   ? 1 + 0.00775 * (double) (1 << pRegion->EG2ControllerDecayInfluence)   * eg2ControllerValue : 1.0;
236            eg.Release = (pRegion->EG2ControllerReleaseInfluence) ? 1 + 0.00775 * (double) (1 << pRegion->EG2ControllerReleaseInfluence) * eg2ControllerValue : 1.0;
237    
238                  // apply cutoff frequency to the cutoff parameter sequence          return eg;
239                  for (uint i = pCutoffEvent->FragmentPos(); i < end; i++) {      }
                     pEngine->pSynthesisParameters[Event::destination_vcfc][i] = cutoff;  
                 }  
240    
241                  pCutoffEvent = pNextCutoffEvent;      void Voice::InitLFO1() {
242              }          uint16_t lfo1_internal_depth;
243              if (pCutoffEventList->last()) VCFCutoffCtrl.fvalue = cutoff; // needed for initialization of parameter matrix next time          switch (pRegion->LFO1Controller) {
244                case ::gig::lfo1_ctrl_internal:
245                    lfo1_internal_depth  = pRegion->LFO1InternalDepth;
246                    pLFO1->ExtController = 0; // no external controller
247                    bLFO1Enabled         = (lfo1_internal_depth > 0);
248                    break;
249                case ::gig::lfo1_ctrl_modwheel:
250                    lfo1_internal_depth  = 0;
251                    pLFO1->ExtController = 1; // MIDI controller 1
252                    bLFO1Enabled         = (pRegion->LFO1ControlDepth > 0);
253                    break;
254                case ::gig::lfo1_ctrl_breath:
255                    lfo1_internal_depth  = 0;
256                    pLFO1->ExtController = 2; // MIDI controller 2
257                    bLFO1Enabled         = (pRegion->LFO1ControlDepth > 0);
258                    break;
259                case ::gig::lfo1_ctrl_internal_modwheel:
260                    lfo1_internal_depth  = pRegion->LFO1InternalDepth;
261                    pLFO1->ExtController = 1; // MIDI controller 1
262                    bLFO1Enabled         = (lfo1_internal_depth > 0 || pRegion->LFO1ControlDepth > 0);
263                    break;
264                case ::gig::lfo1_ctrl_internal_breath:
265                    lfo1_internal_depth  = pRegion->LFO1InternalDepth;
266                    pLFO1->ExtController = 2; // MIDI controller 2
267                    bLFO1Enabled         = (lfo1_internal_depth > 0 || pRegion->LFO1ControlDepth > 0);
268                    break;
269                default:
270                    lfo1_internal_depth  = 0;
271                    pLFO1->ExtController = 0; // no external controller
272                    bLFO1Enabled         = false;
273            }
274            if (bLFO1Enabled) {
275                pLFO1->trigger(pRegion->LFO1Frequency,
276                               start_level_min,
277                               lfo1_internal_depth,
278                               pRegion->LFO1ControlDepth,
279                               pRegion->LFO1FlipPhase,
280                               pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
281                pLFO1->update(pLFO1->ExtController ? GetGigEngineChannel()->ControllerTable[pLFO1->ExtController] : 0);
282          }          }
283        }
284    
285          // process filter resonance events      void Voice::InitLFO2() {
286          {          uint16_t lfo2_internal_depth;
287              RTEList<Event>* pResonanceEventList = pEngine->pSynthesisEvents[Event::destination_vcfr];          switch (pRegion->LFO2Controller) {
288              Event* pResonanceEvent = pResonanceEventList->first();              case ::gig::lfo2_ctrl_internal:
289              if (Delay) { // skip events that happened before this voice was triggered                  lfo2_internal_depth  = pRegion->LFO2InternalDepth;
290                  while (pResonanceEvent && pResonanceEvent->FragmentPos() <= Delay) pResonanceEvent = pResonanceEventList->next();                  pLFO2->ExtController = 0; // no external controller
291              }                  bLFO2Enabled         = (lfo2_internal_depth > 0);
292              while (pResonanceEvent) {                  break;
293                  Event* pNextResonanceEvent = pResonanceEventList->next();              case ::gig::lfo2_ctrl_modwheel:
294                    lfo2_internal_depth  = 0;
295                  // calculate the influence length of this event (in sample points)                  pLFO2->ExtController = 1; // MIDI controller 1
296                  uint end = (pNextResonanceEvent) ? pNextResonanceEvent->FragmentPos() : Samples;                  bLFO2Enabled         = (pRegion->LFO2ControlDepth > 0);
297                    break;
298                  // convert absolute controller value to differential              case ::gig::lfo2_ctrl_foot:
299                  int ctrldelta = pResonanceEvent->Value - VCFResonanceCtrl.value;                  lfo2_internal_depth  = 0;
300                  VCFResonanceCtrl.value = pResonanceEvent->Value;                  pLFO2->ExtController = 4; // MIDI controller 4
301                    bLFO2Enabled         = (pRegion->LFO2ControlDepth > 0);
302                  float resonancedelta = (float) ctrldelta * 0.00787f; // 0.0..1.0                  break;
303                case ::gig::lfo2_ctrl_internal_modwheel:
304                  // apply cutoff frequency to the cutoff parameter sequence                  lfo2_internal_depth  = pRegion->LFO2InternalDepth;
305                  for (uint i = pResonanceEvent->FragmentPos(); i < end; i++) {                  pLFO2->ExtController = 1; // MIDI controller 1
306                      pEngine->pSynthesisParameters[Event::destination_vcfr][i] += resonancedelta;                  bLFO2Enabled         = (lfo2_internal_depth > 0 || pRegion->LFO2ControlDepth > 0);
307                  }                  break;
308                case ::gig::lfo2_ctrl_internal_foot:
309                  pResonanceEvent = pNextResonanceEvent;                  lfo2_internal_depth  = pRegion->LFO2InternalDepth;
310              }                  pLFO2->ExtController = 4; // MIDI controller 4
311              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);
312                    break;
313                default:
314                    lfo2_internal_depth  = 0;
315                    pLFO2->ExtController = 0; // no external controller
316                    bLFO2Enabled         = false;
317            }
318            if (bLFO2Enabled) {
319                pLFO2->trigger(pRegion->LFO2Frequency,
320                               start_level_max,
321                               lfo2_internal_depth,
322                               pRegion->LFO2ControlDepth,
323                               pRegion->LFO2FlipPhase,
324                               pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
325                pLFO2->update(pLFO2->ExtController ? GetGigEngineChannel()->ControllerTable[pLFO2->ExtController] : 0);
326          }          }
     #endif // ENABLE_FILTER  
327      }      }
328    
329      #if ENABLE_FILTER      void Voice::InitLFO3() {
330      /**          uint16_t lfo3_internal_depth;
331       * Calculate all necessary, final biquad filter parameters.          switch (pRegion->LFO3Controller) {
332       *              case ::gig::lfo3_ctrl_internal:
333       * @param Samples - number of samples to be rendered in this audio fragment cycle                  lfo3_internal_depth  = pRegion->LFO3InternalDepth;
334       */                  pLFO3->ExtController = 0; // no external controller
335      void Voice::CalculateBiquadParameters(uint Samples) {                  bLFO3Enabled         = (lfo3_internal_depth > 0);
336          if (!FilterLeft.Enabled) return;                  break;
337                case ::gig::lfo3_ctrl_modwheel:
338          biquad_param_t bqbase;                  lfo3_internal_depth  = 0;
339          biquad_param_t bqmain;                  pLFO3->ExtController = 1; // MIDI controller 1
340          float prev_cutoff = pEngine->pSynthesisParameters[Event::destination_vcfc][0];                  bLFO3Enabled         = (pRegion->LFO3ControlDepth > 0);
341          float prev_res    = pEngine->pSynthesisParameters[Event::destination_vcfr][0];                  break;
342          FilterLeft.SetParameters(&bqbase, &bqmain, prev_cutoff, prev_res, pEngine->SampleRate);              case ::gig::lfo3_ctrl_aftertouch:
343          pEngine->pBasicFilterParameters[0] = bqbase;                  lfo3_internal_depth  = 0;
344          pEngine->pMainFilterParameters[0]  = bqmain;                  pLFO3->ExtController = CTRL_TABLE_IDX_AFTERTOUCH;
345                    bLFO3Enabled         = true;
346          float* bq;                  break;
347          for (int i = 1; i < Samples; i++) {              case ::gig::lfo3_ctrl_internal_modwheel:
348              // recalculate biquad parameters if cutoff or resonance differ from previous sample point                  lfo3_internal_depth  = pRegion->LFO3InternalDepth;
349              if (!(i & FILTER_UPDATE_MASK)) if (pEngine->pSynthesisParameters[Event::destination_vcfr][i] != prev_res ||                  pLFO3->ExtController = 1; // MIDI controller 1
350                                                 pEngine->pSynthesisParameters[Event::destination_vcfc][i] != prev_cutoff) {                  bLFO3Enabled         = (lfo3_internal_depth > 0 || pRegion->LFO3ControlDepth > 0);
351                  prev_cutoff = pEngine->pSynthesisParameters[Event::destination_vcfc][i];                  break;
352                  prev_res    = pEngine->pSynthesisParameters[Event::destination_vcfr][i];              case ::gig::lfo3_ctrl_internal_aftertouch:
353                  FilterLeft.SetParameters(&bqbase, &bqmain, prev_cutoff, prev_res, pEngine->SampleRate);                  lfo3_internal_depth  = pRegion->LFO3InternalDepth;
354              }                  pLFO3->ExtController = CTRL_TABLE_IDX_AFTERTOUCH;
355                    bLFO3Enabled         = (lfo3_internal_depth > 0 || pRegion->LFO3ControlDepth > 0);
356              //same as 'pEngine->pBasicFilterParameters[i] = bqbase;'                  break;
357              bq    = (float*) &pEngine->pBasicFilterParameters[i];              default:
358              bq[0] = bqbase.a1;                  lfo3_internal_depth  = 0;
359              bq[1] = bqbase.a2;                  pLFO3->ExtController = 0; // no external controller
360              bq[2] = bqbase.b0;                  bLFO3Enabled         = false;
361              bq[3] = bqbase.b1;          }
362              bq[4] = bqbase.b2;          if (bLFO3Enabled) {
363                pLFO3->trigger(pRegion->LFO3Frequency,
364              // same as 'pEngine->pMainFilterParameters[i] = bqmain;'                             start_level_mid,
365              bq    = (float*) &pEngine->pMainFilterParameters[i];                             lfo3_internal_depth,
366              bq[0] = bqmain.a1;                             pRegion->LFO3ControlDepth,
367              bq[1] = bqmain.a2;                             false,
368              bq[2] = bqmain.b0;                             pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
369              bq[3] = bqmain.b1;              pLFO3->update(pLFO3->ExtController ? GetGigEngineChannel()->ControllerTable[pLFO3->ExtController] : 0);
             bq[4] = bqmain.b2;  
370          }          }
371      }      }
     #endif // ENABLE_FILTER  
372    
373      /**      float Voice::CalculateCutoffBase(uint8_t MIDIKeyVelocity) {
374       *  Interpolates the input audio data (no loop).          float cutoff = pRegion->GetVelocityCutoff(MIDIKeyVelocity);
375       *          if (pRegion->VCFKeyboardTracking) {
376       *  @param Samples - number of sample points to be rendered in this audio              cutoff *= RTMath::CentsToFreqRatioUnlimited((MIDIKey() - pRegion->VCFKeyboardTrackingBreakpoint) * 100);
377       *                   fragment cycle          }
378       *  @param pSrc    - pointer to input sample data          return cutoff;
379       *  @param Skip    - number of sample points to skip in output buffer      }
380       */  
381      void Voice::Interpolate(uint Samples, sample_t* pSrc, uint Skip) {      float Voice::CalculateFinalCutoff(float cutoffBase) {
382          int i = Skip;          int cvalue;
383            if (VCFCutoffCtrl.controller) {
384          // FIXME: assuming either mono or stereo              cvalue = GetGigEngineChannel()->ControllerTable[VCFCutoffCtrl.controller];
385          if (this->pSample->Channels == 2) { // Stereo Sample              if (pRegion->VCFCutoffControllerInvert) cvalue = 127 - cvalue;
386              while (i < Samples) {              // VCFVelocityScale in this case means Minimum cutoff
387                  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]);  
             }  
388          }          }
389          else { // Mono Sample          else {
390              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]);  
             }  
391          }          }
392            float fco = cutoffBase * float(cvalue);
393            if (fco > 127.0f) fco = 127.0f;
394    
395            return fco;
396      }      }
397    
398      /**      uint8_t Voice::GetVCFCutoffCtrl() {
399       *  Interpolates the input audio data, this method honors looping.          uint8_t ctrl;
400       *          switch (pRegion->VCFCutoffController) {
401       *  @param Samples - number of sample points to be rendered in this audio              case ::gig::vcf_cutoff_ctrl_modwheel:
402       *                   fragment cycle                  ctrl = 1;
403       *  @param pSrc    - pointer to input sample data                  break;
404       *  @param Skip    - number of sample points to skip in output buffer              case ::gig::vcf_cutoff_ctrl_effect1:
405       */                  ctrl = 12;
406      void Voice::InterpolateAndLoop(uint Samples, sample_t* pSrc, uint Skip) {                  break;
407          int i = Skip;              case ::gig::vcf_cutoff_ctrl_effect2:
408                    ctrl = 13;
409          // FIXME: assuming either mono or stereo                  break;
410          if (pSample->Channels == 2) { // Stereo Sample              case ::gig::vcf_cutoff_ctrl_breath:
411              if (pSample->LoopPlayCount) {                  ctrl = 2;
412                  // render loop (loop count limited)                  break;
413                  while (i < Samples && LoopCyclesLeft) {              case ::gig::vcf_cutoff_ctrl_foot:
414                      InterpolateOneStep_Stereo(pSrc, i,                  ctrl = 4;
415                                                pEngine->pSynthesisParameters[Event::destination_vca][i],                  break;
416                                                pEngine->pSynthesisParameters[Event::destination_vco][i],              case ::gig::vcf_cutoff_ctrl_sustainpedal:
417                                                pEngine->pBasicFilterParameters[i],                  ctrl = 64;
418                                                pEngine->pMainFilterParameters[i]);                  break;
419                      if (Pos > pSample->LoopEnd) {              case ::gig::vcf_cutoff_ctrl_softpedal:
420                          Pos = pSample->LoopStart + fmod(Pos - pSample->LoopEnd, pSample->LoopSize);;                  ctrl = 67;
421                          LoopCyclesLeft--;                  break;
422                      }              case ::gig::vcf_cutoff_ctrl_genpurpose7:
423                  }                  ctrl = 82;
424                  // render on without loop                  break;
425                  while (i < Samples) {              case ::gig::vcf_cutoff_ctrl_genpurpose8:
426                      InterpolateOneStep_Stereo(pSrc, i,                  ctrl = 83;
427                                                pEngine->pSynthesisParameters[Event::destination_vca][i],                  break;
428                                                pEngine->pSynthesisParameters[Event::destination_vco][i],              case ::gig::vcf_cutoff_ctrl_aftertouch:
429                                                pEngine->pBasicFilterParameters[i],                  ctrl = CTRL_TABLE_IDX_AFTERTOUCH;
430                                                pEngine->pMainFilterParameters[i]);                  break;
431                  }              case ::gig::vcf_cutoff_ctrl_none:
432              }              default:
433              else { // render loop (endless loop)                  ctrl = 0;
434                  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);;  
                     }  
                 }  
             }  
435          }          }
436    
437            return ctrl;
438      }      }
439    
440      /**      uint8_t Voice::GetVCFResonanceCtrl() {
441       *  Immediately kill the voice. This method should not be used to kill          uint8_t ctrl;
442       *  a normal, active voice, because it doesn't take care of things like          switch (pRegion->VCFResonanceController) {
443       *  fading down the volume level to avoid clicks and regular processing              case ::gig::vcf_res_ctrl_genpurpose3:
444       *  until the kill event actually occured!                  ctrl = 18;
445       *                  break;
446       *  @see Kill()              case ::gig::vcf_res_ctrl_genpurpose4:
447       */                  ctrl = 19;
448      void Voice::KillImmediately() {                  break;
449          if (DiskVoice && DiskStreamRef.State != Stream::state_unused) {              case ::gig::vcf_res_ctrl_genpurpose5:
450              pDiskThread->OrderDeletionOfStream(&DiskStreamRef);                  ctrl = 80;
451                    break;
452                case ::gig::vcf_res_ctrl_genpurpose6:
453                    ctrl = 81;
454                    break;
455                case ::gig::vcf_res_ctrl_none:
456                default:
457                    ctrl = 0;
458          }          }
459          Reset();  
460            return ctrl;
461      }      }
462    
463      /**      void Voice::TriggerEG1(const EGInfo& egInfo, double velrelease, double velocityAttenuation, uint sampleRate, uint8_t velocity) {
464       *  Kill the voice in regular sense. Let the voice render audio until          EG1.trigger(pRegion->EG1PreAttack,
465       *  the kill event actually occured and then fade down the volume level                      RTMath::Max(pRegion->EG1Attack, 0.0316) * egInfo.Attack,
466       *  very quickly and let the voice die finally. Unlike a normal release                      pRegion->EG1Hold,
467       *  of a voice, a kill process cannot be cancalled and is therefore                      pRegion->EG1Decay1 * egInfo.Decay * velrelease,
468       *  usually used for voice stealing and key group conflicts.                      pRegion->EG1Decay2 * egInfo.Decay * velrelease,
469       *                      pRegion->EG1InfiniteSustain,
470       *  @param pKillEvent - event which caused the voice to be killed                      pRegion->EG1Sustain,
471       */                      RTMath::Max(pRegion->EG1Release * velrelease, 0.014) * egInfo.Release,
472      void Voice::Kill(Event* pKillEvent) {                      velocityAttenuation,
473          if (pTriggerEvent && pKillEvent->FragmentPos() <= pTriggerEvent->FragmentPos()) return;                      sampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
474          this->pKillEvent = pKillEvent;      }
475    
476        void Voice::TriggerEG2(const EGInfo& egInfo, double velrelease, double velocityAttenuation, uint sampleRate, uint8_t velocity) {
477            EG2.trigger(uint(RgnInfo.EG2PreAttack),
478                        RgnInfo.EG2Attack * egInfo.Attack,
479                        false,
480                        RgnInfo.EG2Decay1 * egInfo.Decay * velrelease,
481                        RgnInfo.EG2Decay2 * egInfo.Decay * velrelease,
482                        RgnInfo.EG2InfiniteSustain,
483                        uint(RgnInfo.EG2Sustain),
484                        RgnInfo.EG2Release * egInfo.Release * velrelease,
485                        velocityAttenuation,
486                        sampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
487        }
488    
489        void Voice::ProcessGroupEvent(RTList<Event>::Iterator& itEvent) {
490            dmsg(4,("Voice %p processGroupEvents event type=%d", (void*)this, itEvent->Type));
491    
492            // TODO: The SustainPedal condition could be wrong, maybe the
493            // check should be if this Voice is in release stage or is a
494            // release sample instead. Need to test this in GSt.
495            // -- Andreas
496            //
497            // Commented sustain pedal check out. I don't think voices of the same
498            // note should be stopped at all, because it doesn't sound naturally
499            // with a drumkit.
500            // -- Christian, 2013-01-08
501            if (itEvent->Param.Note.Key != HostKey() /*||
502                !GetGigEngineChannel()->SustainPedal*/) {
503                dmsg(4,("Voice %p - kill", (void*)this));
504    
505                // kill the voice fast
506                pEG1->enterFadeOutStage();
507            }
508        }
509    
510        void Voice::CalculateFadeOutCoeff(float FadeOutTime, float SampleRate) {
511            EG1.CalculateFadeOutCoeff(FadeOutTime, SampleRate);
512        }
513    
514        int Voice::CalculatePan(uint8_t pan) {
515            int p;
516            // Gst behaviour: -64 and 63 are special cases
517            if (RgnInfo.Pan == -64)     p = pan * 2 - 127;
518            else if (RgnInfo.Pan == 63) p = pan * 2;
519            else                        p = pan + RgnInfo.Pan;
520    
521            if (p < 0) return 0;
522            if (p > 127) return 127;
523            return p;
524      }      }
525    
526  }} // namespace LinuxSampler::gig  }} // namespace LinuxSampler::gig
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