/[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 285 by schoenebeck, Thu Oct 14 21:31:26 2004 UTC revision 3561 by schoenebeck, Fri Aug 23 11:44:00 2019 UTC
# Line 3  Line 3 
3   *   LinuxSampler - modular, streaming capable sampler                     *   *   LinuxSampler - modular, streaming capable sampler                     *
4   *                                                                         *   *                                                                         *
5   *   Copyright (C) 2003, 2004 by Benno Senoner and Christian Schoenebeck   *   *   Copyright (C) 2003, 2004 by Benno Senoner and Christian Schoenebeck   *
6     *   Copyright (C) 2005 - 2008 Christian Schoenebeck                       *
7     *   Copyright (C) 2009 Christian Schoenebeck and Grigor Iliev             *
8     *   Copyright (C) 2010 - 2017 Christian Schoenebeck and Andreas Persson   *
9   *                                                                         *   *                                                                         *
10   *   This program is free software; you can redistribute it and/or modify  *   *   This program is free software; you can redistribute it and/or modify  *
11   *   it under the terms of the GNU General Public License as published by  *   *   it under the terms of the GNU General Public License as published by  *
# Line 20  Line 23 
23   *   MA  02111-1307  USA                                                   *   *   MA  02111-1307  USA                                                   *
24   ***************************************************************************/   ***************************************************************************/
25    
26  #include "EGADSR.h"  #include "../../common/Features.h"
27  #include "Manipulator.h"  #include "Synthesizer.h"
28    #include "Profiler.h"
29    #include "Engine.h"
30    #include "EngineChannel.h"
31    
32  #include "Voice.h"  #include "Voice.h"
33    
34  namespace LinuxSampler { namespace gig {  namespace LinuxSampler { namespace gig {
35    
36      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;  
         PlaybackState = playback_state_end;  
         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 itNoteOnEvent       - 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(Pool<Event>::Iterator& itNoteOnEvent, int PitchBend, ::gig::Instrument* pInstrument, int iLayer, bool ReleaseTriggerVoice) {  
         if (!pInstrument) {  
            dmsg(1,("voice::trigger: !pInstrument\n"));  
            exit(EXIT_FAILURE);  
         }  
   
         Type            = type_normal;  
         MIDIKey         = itNoteOnEvent->Param.Note.Key;  
         pRegion         = pInstrument->GetRegion(MIDIKey);  
         PlaybackState   = playback_state_ram; // we always start playback from RAM cache and switch then to disk if needed  
         Delay           = itNoteOnEvent->FragmentPos();  
         itTriggerEvent  = itNoteOnEvent;  
         itKillEvent     = Pool<Event>::Iterator();  
         itChildVoice    = Pool<Voice>::Iterator();  
   
         if (!pRegion) {  
             std::cerr << "gig::Voice: No Region defined for MIDI key " << MIDIKey << std::endl << std::flush;  
             KillImmediately();  
             return -1;  
         }  
   
         KeyGroup = pRegion->KeyGroup;  
   
         // get current dimension values to select the right dimension region  
         //FIXME: controller values for selecting the dimension region here are currently not sample accurate  
         uint DimValues[5] = {0,0,0,0,0};  
         for (int i = pRegion->Dimensions - 1; i >= 0; i--) {  
             switch (pRegion->pDimensionDefinitions[i].dimension) {  
                 case ::gig::dimension_samplechannel:  
                     DimValues[i] = 0; //TODO: we currently ignore this dimension  
                     break;  
                 case ::gig::dimension_layer:  
                     DimValues[i] = iLayer;  
                     // if this is the 1st layer then spawn further voices for all the other layers  
                     if (iLayer == 0)  
                         for (int iNewLayer = 1; iNewLayer < pRegion->pDimensionDefinitions[i].zones; iNewLayer++)  
                             itChildVoice = pEngine->LaunchVoice(itNoteOnEvent, iNewLayer, ReleaseTriggerVoice);  
                     break;  
                 case ::gig::dimension_velocity:  
                     DimValues[i] = itNoteOnEvent->Param.Note.Velocity;  
                     break;  
                 case ::gig::dimension_channelaftertouch:  
                     DimValues[i] = 0; //TODO: we currently ignore this dimension  
                     break;  
                 case ::gig::dimension_releasetrigger:  
                     Type = (ReleaseTriggerVoice) ? type_release_trigger : (!iLayer) ? type_release_trigger_required : type_normal;  
                     DimValues[i] = (uint) ReleaseTriggerVoice;  
                     break;  
                 case ::gig::dimension_keyboard:  
                     DimValues[i] = (uint) itNoteOnEvent->Param.Note.Key;  
                     break;  
                 case ::gig::dimension_modwheel:  
                     DimValues[i] = pEngine->ControllerTable[1];  
                     break;  
                 case ::gig::dimension_breath:  
                     DimValues[i] = pEngine->ControllerTable[2];  
                     break;  
                 case ::gig::dimension_foot:  
                     DimValues[i] = pEngine->ControllerTable[4];  
                     break;  
                 case ::gig::dimension_portamentotime:  
                     DimValues[i] = pEngine->ControllerTable[5];  
                     break;  
                 case ::gig::dimension_effect1:  
                     DimValues[i] = pEngine->ControllerTable[12];  
                     break;  
                 case ::gig::dimension_effect2:  
                     DimValues[i] = pEngine->ControllerTable[13];  
                     break;  
                 case ::gig::dimension_genpurpose1:  
                     DimValues[i] = pEngine->ControllerTable[16];  
                     break;  
                 case ::gig::dimension_genpurpose2:  
                     DimValues[i] = pEngine->ControllerTable[17];  
                     break;  
                 case ::gig::dimension_genpurpose3:  
                     DimValues[i] = pEngine->ControllerTable[18];  
                     break;  
                 case ::gig::dimension_genpurpose4:  
                     DimValues[i] = pEngine->ControllerTable[19];  
                     break;  
                 case ::gig::dimension_sustainpedal:  
                     DimValues[i] = pEngine->ControllerTable[64];  
                     break;  
                 case ::gig::dimension_portamento:  
                     DimValues[i] = pEngine->ControllerTable[65];  
                     break;  
                 case ::gig::dimension_sostenutopedal:  
                     DimValues[i] = pEngine->ControllerTable[66];  
                     break;  
                 case ::gig::dimension_softpedal:  
                     DimValues[i] = pEngine->ControllerTable[67];  
                     break;  
                 case ::gig::dimension_genpurpose5:  
                     DimValues[i] = pEngine->ControllerTable[80];  
                     break;  
                 case ::gig::dimension_genpurpose6:  
                     DimValues[i] = pEngine->ControllerTable[81];  
                     break;  
                 case ::gig::dimension_genpurpose7:  
                     DimValues[i] = pEngine->ControllerTable[82];  
                     break;  
                 case ::gig::dimension_genpurpose8:  
                     DimValues[i] = pEngine->ControllerTable[83];  
                     break;  
                 case ::gig::dimension_effect1depth:  
                     DimValues[i] = pEngine->ControllerTable[91];  
                     break;  
                 case ::gig::dimension_effect2depth:  
                     DimValues[i] = pEngine->ControllerTable[92];  
                     break;  
                 case ::gig::dimension_effect3depth:  
                     DimValues[i] = pEngine->ControllerTable[93];  
                     break;  
                 case ::gig::dimension_effect4depth:  
                     DimValues[i] = pEngine->ControllerTable[94];  
                     break;  
                 case ::gig::dimension_effect5depth:  
                     DimValues[i] = pEngine->ControllerTable[95];  
                     break;  
                 case ::gig::dimension_none:  
                     std::cerr << "gig::Voice::Trigger() Error: dimension=none\n" << std::flush;  
                     break;  
                 default:  
                     std::cerr << "gig::Voice::Trigger() Error: Unknown dimension\n" << std::flush;  
             }  
         }  
         pDimRgn = pRegion->GetDimensionRegionByValue(DimValues[4],DimValues[3],DimValues[2],DimValues[1],DimValues[0]);  
   
         // 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(itNoteOnEvent->Param.Note.Velocity);  
                 break;  
             case ::gig::attenuation_ctrl_t::type_controlchange: //FIXME: currently not sample accurate  
                 CrossfadeVolume = CrossfadeAttenuation(pEngine->ControllerTable[pDimRgn->AttenuationController.controller_number]);  
                 break;  
             case ::gig::attenuation_ctrl_t::type_none: // no crossfade defined  
             default:  
                 CrossfadeVolume = 1.0f;  
         }  
   
         PanLeft  = 1.0f - float(RTMath::Max(pDimRgn->Pan, 0)) /  63.0f;  
         PanRight = 1.0f - float(RTMath::Min(pDimRgn->Pan, 0)) / -64.0f;  
   
         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"));  
         }  
63    
64            si.HasLoops       = pRegion->SampleLoops;
65            si.LoopStart      = (si.HasLoops) ? pRegion->pSampleLoops[0].LoopStart  : 0;
66            si.LoopLength     = (si.HasLoops) ? pRegion->pSampleLoops[0].LoopLength : 0;
67            si.LoopPlayCount  = pSample->LoopPlayCount;
68            si.Unpitched      = !pRegion->PitchTrack;
69    
70          // calculate initial pitch value          return si;
71          {      }
             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  
         }  
72    
73        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          Volume = pDimRgn->GetVelocityAttenuation(itNoteOnEvent->Param.Note.Velocity) / 32768.0f; // we downscale by 32768 to convert from int16 value range to DSP value range (which is -1.0..1.0)          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            ri.EG3Attack     = pRegion->EG3Attack;
89            ri.EG3Depth      = pRegion->EG3Depth;
90            ri.VCFEnabled    = pRegion->VCFEnabled;
91            ri.VCFType       = Filter::vcf_type_t(pRegion->VCFType);
92            ri.VCFResonance  = pRegion->VCFResonance;
93    
94          // setup EG 1 (VCA EG)          ri.ReleaseTriggerDecay = 0.01053 * (256 >> pRegion->ReleaseTriggerDecay);
         {  
             // get current value of EG1 controller  
             double eg1controllervalue;  
             switch (pDimRgn->EG1Controller.type) {  
                 case ::gig::eg1_ctrl_t::type_none: // no controller defined  
                     eg1controllervalue = 0;  
                     break;  
                 case ::gig::eg1_ctrl_t::type_channelaftertouch:  
                     eg1controllervalue = 0; // TODO: aftertouch not yet supported  
                     break;  
                 case ::gig::eg1_ctrl_t::type_velocity:  
                     eg1controllervalue = itNoteOnEvent->Param.Note.Velocity;  
                     break;  
                 case ::gig::eg1_ctrl_t::type_controlchange: // MIDI control change controller  
                     eg1controllervalue = pEngine->ControllerTable[pDimRgn->EG1Controller.controller_number];  
                     break;  
             }  
             if (pDimRgn->EG1ControllerInvert) eg1controllervalue = 127 - eg1controllervalue;  
95    
96              // calculate influence of EG1 controller on EG1's parameters (TODO: needs to be fine tuned)          return ri;
97              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);  
         }  
   
   
     #if ENABLE_FILTER  
         // 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 = itNoteOnEvent->Param.Note.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;  
98    
99              // calculate influence of EG2 controller on EG2's parameters (TODO: needs to be fine tuned)      Voice::InstrumentInfo Voice::GetInstrumentInfo() {
100              double eg2attack  = (pDimRgn->EG2ControllerAttackInfluence)  ? 0.0001 * (double) (1 << pDimRgn->EG2ControllerAttackInfluence)  * eg2controllervalue : 0.0;          InstrumentInfo ii;
101              double eg2decay   = (pDimRgn->EG2ControllerDecayInfluence)   ? 0.0001 * (double) (1 << pDimRgn->EG2ControllerDecayInfluence)   * eg2controllervalue : 0.0;          ii.FineTune = GetGigEngineChannel()->pInstrument->FineTune;
102              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  
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 - itNoteOnEvent->Param.Note.Velocity) * (float) pDimRgn->VCFVelocityScale * 6.2E-5f * FILTER_CUTOFF_COEFF) * FILTER_CUTOFF_MAX  
                 : exp((float) VCFCutoffCtrl.value * 0.00787402f * FILTER_CUTOFF_COEFF) * FILTER_CUTOFF_MAX;  
   
             // calculate resonance  
             float resonance = (float) VCFResonanceCtrl.value * 0.00787f;   // 0.0..1.0  
             if (pDimRgn->VCFKeyboardTracking) {  
                 resonance += (float) (itNoteOnEvent->Param.Note.Key - pDimRgn->VCFKeyboardTrackingBreakpoint) * 0.00787f;  
             }  
             Constrain(resonance, 0.0, 1.0); // correct resonance if outside allowed value range (0.0..1.0)  
   
             VCFCutoffCtrl.fvalue    = cutoff - FILTER_CUTOFF_MIN;  
             VCFResonanceCtrl.fvalue = resonance;  
   
             FilterLeft.SetParameters(cutoff,  resonance, pEngine->SampleRate);  
             FilterRight.SetParameters(cutoff, resonance, pEngine->SampleRate);  
139    
140              FilterUpdateCounter = -1;      void Voice::ProcessCutoffEvent(RTList<Event>::Iterator& itEvent) {
141          }          int ccvalue = itEvent->Param.CC.Value;
142          else {          if (VCFCutoffCtrl.value == ccvalue) return;
143              VCFCutoffCtrl.controller    = 0;          VCFCutoffCtrl.value = ccvalue;
144              VCFResonanceCtrl.controller = 0;          if (pRegion->VCFCutoffControllerInvert)  ccvalue = 127 - ccvalue;
145          }          if (ccvalue < pRegion->VCFVelocityScale) ccvalue = pRegion->VCFVelocityScale;
146      #endif // ENABLE_FILTER          float cutoff = CutoffBase * float(ccvalue);
147            if (cutoff > 127.0f) cutoff = 127.0f;
148    
149          return 0; // success          VCFCutoffCtrl.fvalue = cutoff; // needed for initialization of fFinalCutoff next time
150            fFinalCutoff = cutoff;
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, itTriggerEvent, this->Pos, this->PitchBase * this->PitchBend, itKillEvent);  
     #if ENABLE_FILTER  
         pEG2->Process(Samples, pEngine->pMIDIKeyInfo[MIDIKey].pEvents, itTriggerEvent, 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         InterpolateNoLoop(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  
                     InterpolateNoLoop(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)];
161                  std::cerr << "gig::Voice::Render(): entered with playback_state_end, this is a bug!\n" << std::flush;                  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;                  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          itTriggerEvent = Pool<Event>::Iterator();                  eg1controllervalue = MIDIKeyVelocity;
184                    break;
185          // If sample stream or release stage finished, kill the voice              case ::gig::eg1_ctrl_t::type_controlchange: // MIDI control change controller
186          if (PlaybackState == playback_state_end || pEG1->GetStage() == EGADSR::stage_end) KillImmediately();                  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;  
         PlaybackState = playback_state_end;  
         itTriggerEvent = Pool<Event>::Iterator();  
         itKillEvent    = Pool<Event>::Iterator();  
     }  
   
     /**  
      *  Process the control change event lists of the engine for the current  
      *  audio fragment. Event values will be applied to the synthesis parameter  
      *  matrix.  
      *  
      *  @param Samples - number of samples to be rendered in this audio fragment cycle  
      */  
     void Voice::ProcessEvents(uint Samples) {  
   
         // dispatch control change events  
         RTList<Event>::Iterator itCCEvent = pEngine->pCCEvents->first();  
         if (Delay) { // skip events that happened before this voice was triggered  
             while (itCCEvent && itCCEvent->FragmentPos() <= Delay) ++itCCEvent;  
         }  
         while (itCCEvent) {  
             if (itCCEvent->Param.CC.Controller) { // if valid MIDI controller  
                 #if ENABLE_FILTER  
                 if (itCCEvent->Param.CC.Controller == VCFCutoffCtrl.controller) {  
                     *pEngine->pSynthesisEvents[Event::destination_vcfc]->allocAppend() = *itCCEvent;  
                 }  
                 if (itCCEvent->Param.CC.Controller == VCFResonanceCtrl.controller) {  
                     *pEngine->pSynthesisEvents[Event::destination_vcfr]->allocAppend() = *itCCEvent;  
                 }  
                 #endif // ENABLE_FILTER  
                 if (itCCEvent->Param.CC.Controller == pLFO1->ExtController) {  
                     pLFO1->SendEvent(itCCEvent);  
                 }  
                 #if ENABLE_FILTER  
                 if (itCCEvent->Param.CC.Controller == pLFO2->ExtController) {  
                     pLFO2->SendEvent(itCCEvent);  
                 }  
                 #endif // ENABLE_FILTER  
                 if (itCCEvent->Param.CC.Controller == pLFO3->ExtController) {  
                     pLFO3->SendEvent(itCCEvent);  
                 }  
                 if (pDimRgn->AttenuationController.type == ::gig::attenuation_ctrl_t::type_controlchange &&  
                     itCCEvent->Param.CC.Controller == pDimRgn->AttenuationController.controller_number) { // if crossfade event  
                     *pEngine->pSynthesisEvents[Event::destination_vca]->allocAppend() = *itCCEvent;  
                 }  
             }  
   
             ++itCCEvent;  
188          }          }
189            if (pRegion->EG1ControllerInvert) eg1controllervalue = 127 - eg1controllervalue;
190    
191            return eg1controllervalue;
192        }
193    
194          // process pitch events      Voice::EGInfo Voice::CalculateEG1ControllerInfluence(double eg1ControllerValue) {
195          {          EGInfo eg;
196              RTList<Event>* pVCOEventList = pEngine->pSynthesisEvents[Event::destination_vco];          // (eg1attack is different from the others)
197              RTList<Event>::Iterator itVCOEvent = pVCOEventList->first();          if (pRegion->EG1Attack < 1e-8 && // attack in gig == 0
198              if (Delay) { // skip events that happened before this voice was triggered              (pRegion->EG1ControllerAttackInfluence == 0 ||
199                  while (itVCOEvent && itVCOEvent->FragmentPos() <= Delay) ++itVCOEvent;               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              // apply old pitchbend value until first pitch event occurs          } else {
202              if (this->PitchBend != 1.0) {              eg.Attack  = (pRegion->EG1ControllerAttackInfluence)  ?
203                  uint end = (itVCOEvent) ? itVCOEvent->FragmentPos() : Samples;                  1 + 0.031 * (double) (pRegion->EG1ControllerAttackInfluence == 1 ?
204                  for (uint i = Delay; i < end; i++) {                                        1 : 1 << pRegion->EG1ControllerAttackInfluence) * eg1ControllerValue : 1.0;
205                      pEngine->pSynthesisParameters[Event::destination_vco][i] *= this->PitchBend;          }
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              float pitch;  
209              while (itVCOEvent) {          return eg;
210                  RTList<Event>::Iterator itNextVCOEvent = itVCOEvent;      }
211                  ++itNextVCOEvent;  
212        double Voice::GetEG2ControllerValue(uint8_t MIDIKeyVelocity) {
213                  // calculate the influence length of this event (in sample points)          double eg2controllervalue = 0;
214                  uint end = (itNextVCOEvent) ? itNextVCOEvent->FragmentPos() : Samples;          switch (pRegion->EG2Controller.type) {
215                case ::gig::eg2_ctrl_t::type_none: // no controller defined
216                  pitch = RTMath::CentsToFreqRatio(((double) itVCOEvent->Param.Pitch.Pitch / 8192.0) * 200.0); // +-two semitones = +-200 cents                  eg2controllervalue = 0;
217                    break;
218                  // apply pitch value to the pitch parameter sequence              case ::gig::eg2_ctrl_t::type_channelaftertouch:
219                  for (uint i = itVCOEvent->FragmentPos(); i < end; i++) {                  eg2controllervalue = GetGigEngineChannel()->ControllerTable[128];
220                      pEngine->pSynthesisParameters[Event::destination_vco][i] *= pitch;                  break;
221                  }              case ::gig::eg2_ctrl_t::type_velocity:
222                    eg2controllervalue = MIDIKeyVelocity;
223                  itVCOEvent = itNextVCOEvent;                  break;
224              }              case ::gig::eg2_ctrl_t::type_controlchange: // MIDI control change controller
225              if (!pVCOEventList->isEmpty()) this->PitchBend = pitch;                  eg2controllervalue = GetGigEngineChannel()->ControllerTable[pRegion->EG2Controller.controller_number];
226                    break;
227          }          }
228            if (pRegion->EG2ControllerInvert) eg2controllervalue = 127 - eg2controllervalue;
229    
230          // process volume / attenuation events (TODO: we only handle and _expect_ crossfade events here ATM !)          return eg2controllervalue;
231          {      }
             RTList<Event>* pVCAEventList = pEngine->pSynthesisEvents[Event::destination_vca];  
             RTList<Event>::Iterator itVCAEvent = pVCAEventList->first();  
             if (Delay) { // skip events that happened before this voice was triggered  
                 while (itVCAEvent && itVCAEvent->FragmentPos() <= Delay) ++itVCAEvent;  
             }  
             float crossfadevolume;  
             while (itVCAEvent) {  
                 RTList<Event>::Iterator itNextVCAEvent = itVCAEvent;  
                 ++itNextVCAEvent;  
   
                 // calculate the influence length of this event (in sample points)  
                 uint end = (itNextVCAEvent) ? itNextVCAEvent->FragmentPos() : Samples;  
   
                 crossfadevolume = CrossfadeAttenuation(itVCAEvent->Param.CC.Value);  
   
                 float effective_volume = crossfadevolume * this->Volume * pEngine->GlobalVolume;  
   
                 // apply volume value to the volume parameter sequence  
                 for (uint i = itVCAEvent->FragmentPos(); i < end; i++) {  
                     pEngine->pSynthesisParameters[Event::destination_vca][i] = effective_volume;  
                 }  
232    
233                  itVCAEvent = itNextVCAEvent;      Voice::EGInfo Voice::CalculateEG2ControllerInfluence(double eg2ControllerValue) {
234              }          EGInfo eg;
235              if (!pVCAEventList->isEmpty()) this->CrossfadeVolume = crossfadevolume;          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      #if ENABLE_FILTER          return eg;
240          // process filter cutoff events      }
         {  
             RTList<Event>* pCutoffEventList = pEngine->pSynthesisEvents[Event::destination_vcfc];  
             RTList<Event>::Iterator itCutoffEvent = pCutoffEventList->first();  
             if (Delay) { // skip events that happened before this voice was triggered  
                 while (itCutoffEvent && itCutoffEvent->FragmentPos() <= Delay) ++itCutoffEvent;  
             }  
             float cutoff;  
             while (itCutoffEvent) {  
                 RTList<Event>::Iterator itNextCutoffEvent = itCutoffEvent;  
                 ++itNextCutoffEvent;  
   
                 // calculate the influence length of this event (in sample points)  
                 uint end = (itNextCutoffEvent) ? itNextCutoffEvent->FragmentPos() : Samples;  
   
                 cutoff = exp((float) itCutoffEvent->Param.CC.Value * 0.00787402f * FILTER_CUTOFF_COEFF) * FILTER_CUTOFF_MAX - FILTER_CUTOFF_MIN;  
   
                 // apply cutoff frequency to the cutoff parameter sequence  
                 for (uint i = itCutoffEvent->FragmentPos(); i < end; i++) {  
                     pEngine->pSynthesisParameters[Event::destination_vcfc][i] = cutoff;  
                 }  
241    
242                  itCutoffEvent = itNextCutoffEvent;      void Voice::InitLFO1() {
243              }          uint16_t lfo1_internal_depth;
244              if (!pCutoffEventList->isEmpty()) 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(
284                    pNote->Override.AmpLFODepth.Value,
285                    pNote->Override.AmpLFODepth.Final
286                );
287                if (pNote->Override.AmpLFOFreq.isFinal())
288                    pLFO1->setScriptFrequencyFinal(
289                        pNote->Override.AmpLFOFreq.Value, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE
290                    );
291                else
292                    pLFO1->setScriptFrequencyFactor(
293                        pNote->Override.AmpLFOFreq.Value, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE
294                    );
295          }          }
296        }
297    
298          // process filter resonance events      void Voice::InitLFO2() {
299          {          uint16_t lfo2_internal_depth;
300              RTList<Event>* pResonanceEventList = pEngine->pSynthesisEvents[Event::destination_vcfr];          switch (pRegion->LFO2Controller) {
301              RTList<Event>::Iterator itResonanceEvent = pResonanceEventList->first();              case ::gig::lfo2_ctrl_internal:
302              if (Delay) { // skip events that happened before this voice was triggered                  lfo2_internal_depth  = pRegion->LFO2InternalDepth;
303                  while (itResonanceEvent && itResonanceEvent->FragmentPos() <= Delay) ++itResonanceEvent;                  pLFO2->ExtController = 0; // no external controller
304              }                  bLFO2Enabled         = (lfo2_internal_depth > 0);
305              while (itResonanceEvent) {                  break;
306                  RTList<Event>::Iterator itNextResonanceEvent = itResonanceEvent;              case ::gig::lfo2_ctrl_modwheel:
307                  ++itNextResonanceEvent;                  lfo2_internal_depth  = 0;
308                    pLFO2->ExtController = 1; // MIDI controller 1
309                  // calculate the influence length of this event (in sample points)                  bLFO2Enabled         = (pRegion->LFO2ControlDepth > 0);
310                  uint end = (itNextResonanceEvent) ? itNextResonanceEvent->FragmentPos() : Samples;                  break;
311                case ::gig::lfo2_ctrl_foot:
312                  // convert absolute controller value to differential                  lfo2_internal_depth  = 0;
313                  int ctrldelta = itResonanceEvent->Param.CC.Value - VCFResonanceCtrl.value;                  pLFO2->ExtController = 4; // MIDI controller 4
314                  VCFResonanceCtrl.value = itResonanceEvent->Param.CC.Value;                  bLFO2Enabled         = (pRegion->LFO2ControlDepth > 0);
315                    break;
316                  float resonancedelta = (float) ctrldelta * 0.00787f; // 0.0..1.0              case ::gig::lfo2_ctrl_internal_modwheel:
317                    lfo2_internal_depth  = pRegion->LFO2InternalDepth;
318                  // apply cutoff frequency to the cutoff parameter sequence                  pLFO2->ExtController = 1; // MIDI controller 1
319                  for (uint i = itResonanceEvent->FragmentPos(); i < end; i++) {                  bLFO2Enabled         = (lfo2_internal_depth > 0 || pRegion->LFO2ControlDepth > 0);
320                      pEngine->pSynthesisParameters[Event::destination_vcfr][i] += resonancedelta;                  break;
321                  }              case ::gig::lfo2_ctrl_internal_foot:
322                    lfo2_internal_depth  = pRegion->LFO2InternalDepth;
323                  itResonanceEvent = itNextResonanceEvent;                  pLFO2->ExtController = 4; // MIDI controller 4
324              }                  bLFO2Enabled         = (lfo2_internal_depth > 0 || pRegion->LFO2ControlDepth > 0);
325              if (!pResonanceEventList->isEmpty()) VCFResonanceCtrl.fvalue = pResonanceEventList->last()->Param.CC.Value * 0.00787f; // needed for initialization of parameter matrix next time                  break;
326                default:
327                    lfo2_internal_depth  = 0;
328                    pLFO2->ExtController = 0; // no external controller
329                    bLFO2Enabled         = false;
330            }
331            if (bLFO2Enabled) {
332                pLFO2->trigger(pRegion->LFO2Frequency,
333                               start_level_max,
334                               lfo2_internal_depth,
335                               pRegion->LFO2ControlDepth,
336                               pRegion->LFO2FlipPhase,
337                               pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
338                pLFO2->updateByMIDICtrlValue(pLFO2->ExtController ? GetGigEngineChannel()->ControllerTable[pLFO2->ExtController] : 0);
339                pLFO2->setScriptDepthFactor(
340                    pNote->Override.CutoffLFODepth.Value,
341                    pNote->Override.CutoffLFODepth.Final
342                );
343                if (pNote->Override.CutoffLFOFreq.isFinal())
344                    pLFO2->setScriptFrequencyFinal(pNote->Override.CutoffLFOFreq.Value, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
345                else
346                    pLFO2->setScriptFrequencyFactor(pNote->Override.CutoffLFOFreq.Value, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
347          }          }
     #endif // ENABLE_FILTER  
348      }      }
349    
350      #if ENABLE_FILTER      void Voice::InitLFO3() {
351      /**          uint16_t lfo3_internal_depth;
352       * Calculate all necessary, final biquad filter parameters.          switch (pRegion->LFO3Controller) {
353       *              case ::gig::lfo3_ctrl_internal:
354       * @param Samples - number of samples to be rendered in this audio fragment cycle                  lfo3_internal_depth  = pRegion->LFO3InternalDepth;
355       */                  pLFO3->ExtController = 0; // no external controller
356      void Voice::CalculateBiquadParameters(uint Samples) {                  bLFO3Enabled         = (lfo3_internal_depth > 0);
357          if (!FilterLeft.Enabled) return;                  break;
358                case ::gig::lfo3_ctrl_modwheel:
359          biquad_param_t bqbase;                  lfo3_internal_depth  = 0;
360          biquad_param_t bqmain;                  pLFO3->ExtController = 1; // MIDI controller 1
361          float prev_cutoff = pEngine->pSynthesisParameters[Event::destination_vcfc][0];                  bLFO3Enabled         = (pRegion->LFO3ControlDepth > 0);
362          float prev_res    = pEngine->pSynthesisParameters[Event::destination_vcfr][0];                  break;
363          FilterLeft.SetParameters(&bqbase, &bqmain, prev_cutoff, prev_res, pEngine->SampleRate);              case ::gig::lfo3_ctrl_aftertouch:
364          pEngine->pBasicFilterParameters[0] = bqbase;                  lfo3_internal_depth  = 0;
365          pEngine->pMainFilterParameters[0]  = bqmain;                  pLFO3->ExtController = CTRL_TABLE_IDX_AFTERTOUCH;
366                    bLFO3Enabled         = true;
367          float* bq;                  break;
368          for (int i = 1; i < Samples; i++) {              case ::gig::lfo3_ctrl_internal_modwheel:
369              // recalculate biquad parameters if cutoff or resonance differ from previous sample point                  lfo3_internal_depth  = pRegion->LFO3InternalDepth;
370              if (!(i & FILTER_UPDATE_MASK)) if (pEngine->pSynthesisParameters[Event::destination_vcfr][i] != prev_res ||                  pLFO3->ExtController = 1; // MIDI controller 1
371                                                 pEngine->pSynthesisParameters[Event::destination_vcfc][i] != prev_cutoff) {                  bLFO3Enabled         = (lfo3_internal_depth > 0 || pRegion->LFO3ControlDepth > 0);
372                  prev_cutoff = pEngine->pSynthesisParameters[Event::destination_vcfc][i];                  break;
373                  prev_res    = pEngine->pSynthesisParameters[Event::destination_vcfr][i];              case ::gig::lfo3_ctrl_internal_aftertouch:
374                  FilterLeft.SetParameters(&bqbase, &bqmain, prev_cutoff, prev_res, pEngine->SampleRate);                  lfo3_internal_depth  = pRegion->LFO3InternalDepth;
375              }                  pLFO3->ExtController = CTRL_TABLE_IDX_AFTERTOUCH;
376                    bLFO3Enabled         = (lfo3_internal_depth > 0 || pRegion->LFO3ControlDepth > 0);
377              //same as 'pEngine->pBasicFilterParameters[i] = bqbase;'                  break;
378              bq    = (float*) &pEngine->pBasicFilterParameters[i];              default:
379              bq[0] = bqbase.a1;                  lfo3_internal_depth  = 0;
380              bq[1] = bqbase.a2;                  pLFO3->ExtController = 0; // no external controller
381              bq[2] = bqbase.b0;                  bLFO3Enabled         = false;
382              bq[3] = bqbase.b1;          }
383              bq[4] = bqbase.b2;          if (bLFO3Enabled) {
384                pLFO3->trigger(pRegion->LFO3Frequency,
385              // same as 'pEngine->pMainFilterParameters[i] = bqmain;'                             start_level_mid,
386              bq    = (float*) &pEngine->pMainFilterParameters[i];                             lfo3_internal_depth,
387              bq[0] = bqmain.a1;                             pRegion->LFO3ControlDepth,
388              bq[1] = bqmain.a2;                             false,
389              bq[2] = bqmain.b0;                             pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
390              bq[3] = bqmain.b1;              pLFO3->updateByMIDICtrlValue(pLFO3->ExtController ? GetGigEngineChannel()->ControllerTable[pLFO3->ExtController] : 0);
391              bq[4] = bqmain.b2;              pLFO3->setScriptDepthFactor(
392                    pNote->Override.PitchLFODepth.Value,
393                    pNote->Override.PitchLFODepth.Final
394                );
395                if (pNote->Override.PitchLFOFreq.isFinal())
396                    pLFO3->setScriptFrequencyFinal(pNote->Override.PitchLFOFreq.Value, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
397                else
398                    pLFO3->setScriptFrequencyFactor(pNote->Override.PitchLFOFreq.Value, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
399          }          }
400      }      }
     #endif // ENABLE_FILTER  
401    
402      /**      float Voice::CalculateCutoffBase(uint8_t MIDIKeyVelocity) {
403       *  Interpolates the input audio data (without looping).          float cutoff = pRegion->GetVelocityCutoff(MIDIKeyVelocity);
404       *          if (pRegion->VCFKeyboardTracking) {
405       *  @param Samples - number of sample points to be rendered in this audio              cutoff *= RTMath::CentsToFreqRatioUnlimited((MIDIKey() - pRegion->VCFKeyboardTrackingBreakpoint) * 100);
406       *                   fragment cycle          }
407       *  @param pSrc    - pointer to input sample data          return cutoff;
408       *  @param Skip    - number of sample points to skip in output buffer      }
409       */  
410      void Voice::InterpolateNoLoop(uint Samples, sample_t* pSrc, uint Skip) {      float Voice::CalculateFinalCutoff(float cutoffBase) {
411          int i = Skip;          int cvalue;
412            if (VCFCutoffCtrl.controller) {
413          // FIXME: assuming either mono or stereo              cvalue = GetGigEngineChannel()->ControllerTable[VCFCutoffCtrl.controller];
414          if (this->pSample->Channels == 2) { // Stereo Sample              if (pRegion->VCFCutoffControllerInvert) cvalue = 127 - cvalue;
415              while (i < Samples) InterpolateStereo(pSrc, i);              // VCFVelocityScale in this case means Minimum cutoff
416                if (cvalue < pRegion->VCFVelocityScale) cvalue = pRegion->VCFVelocityScale;
417          }          }
418          else { // Mono Sample          else {
419              while (i < Samples) InterpolateMono(pSrc, i);              cvalue = pRegion->VCFCutoff;
420          }          }
421            float fco = cutoffBase * float(cvalue);
422            if (fco > 127.0f) fco = 127.0f;
423    
424            return fco;
425      }      }
426    
427      /**      uint8_t Voice::GetVCFCutoffCtrl() {
428       *  Interpolates the input audio data, this method honors looping.          uint8_t ctrl;
429       *          switch (pRegion->VCFCutoffController) {
430       *  @param Samples - number of sample points to be rendered in this audio              case ::gig::vcf_cutoff_ctrl_modwheel:
431       *                   fragment cycle                  ctrl = 1;
432       *  @param pSrc    - pointer to input sample data                  break;
433       *  @param Skip    - number of sample points to skip in output buffer              case ::gig::vcf_cutoff_ctrl_effect1:
434       */                  ctrl = 12;
435      void Voice::InterpolateAndLoop(uint Samples, sample_t* pSrc, uint Skip) {                  break;
436          int i = Skip;              case ::gig::vcf_cutoff_ctrl_effect2:
437                    ctrl = 13;
438          // FIXME: assuming either mono or stereo                  break;
439          if (pSample->Channels == 2) { // Stereo Sample              case ::gig::vcf_cutoff_ctrl_breath:
440              if (pSample->LoopPlayCount) {                  ctrl = 2;
441                  // render loop (loop count limited)                  break;
442                  while (i < Samples && LoopCyclesLeft) {              case ::gig::vcf_cutoff_ctrl_foot:
443                      InterpolateStereo(pSrc, i);                  ctrl = 4;
444                      if (Pos > pSample->LoopEnd) {                  break;
445                          Pos = pSample->LoopStart + fmod(Pos - pSample->LoopEnd, pSample->LoopSize);;              case ::gig::vcf_cutoff_ctrl_sustainpedal:
446                          LoopCyclesLeft--;                  ctrl = 64;
447                      }                  break;
448                  }              case ::gig::vcf_cutoff_ctrl_softpedal:
449                  // render on without loop                  ctrl = 67;
450                  while (i < Samples) InterpolateStereo(pSrc, i);                  break;
451              }              case ::gig::vcf_cutoff_ctrl_genpurpose7:
452              else { // render loop (endless loop)                  ctrl = 82;
453                  while (i < Samples) {                  break;
454                      InterpolateStereo(pSrc, i);              case ::gig::vcf_cutoff_ctrl_genpurpose8:
455                      if (Pos > pSample->LoopEnd) {                  ctrl = 83;
456                          Pos = pSample->LoopStart + fmod(Pos - pSample->LoopEnd, pSample->LoopSize);                  break;
457                      }              case ::gig::vcf_cutoff_ctrl_aftertouch:
458                  }                  ctrl = CTRL_TABLE_IDX_AFTERTOUCH;
459              }                  break;
460          }              case ::gig::vcf_cutoff_ctrl_none:
461          else { // Mono Sample              default:
462              if (pSample->LoopPlayCount) {                  ctrl = 0;
463                  // render loop (loop count limited)                  break;
                 while (i < Samples && LoopCyclesLeft) {  
                     InterpolateMono(pSrc, i);  
                     if (Pos > pSample->LoopEnd) {  
                         Pos = pSample->LoopStart + fmod(Pos - pSample->LoopEnd, pSample->LoopSize);;  
                         LoopCyclesLeft--;  
                     }  
                 }  
                 // render on without loop  
                 while (i < Samples) InterpolateMono(pSrc, i);  
             }  
             else { // render loop (endless loop)  
                 while (i < Samples) {  
                     InterpolateMono(pSrc, i);  
                     if (Pos > pSample->LoopEnd) {  
                         Pos = pSample->LoopStart + fmod(Pos - pSample->LoopEnd, pSample->LoopSize);;  
                     }  
                 }  
             }  
464          }          }
465    
466            return ctrl;
467      }      }
468    
469      /**      uint8_t Voice::GetVCFResonanceCtrl() {
470       *  Immediately kill the voice. This method should not be used to kill          uint8_t ctrl;
471       *  a normal, active voice, because it doesn't take care of things like          switch (pRegion->VCFResonanceController) {
472       *  fading down the volume level to avoid clicks and regular processing              case ::gig::vcf_res_ctrl_genpurpose3:
473       *  until the kill event actually occured!                  ctrl = 18;
474       *                  break;
475       *  @see Kill()              case ::gig::vcf_res_ctrl_genpurpose4:
476       */                  ctrl = 19;
477      void Voice::KillImmediately() {                  break;
478          if (DiskVoice && DiskStreamRef.State != Stream::state_unused) {              case ::gig::vcf_res_ctrl_genpurpose5:
479              pDiskThread->OrderDeletionOfStream(&DiskStreamRef);                  ctrl = 80;
480                    break;
481                case ::gig::vcf_res_ctrl_genpurpose6:
482                    ctrl = 81;
483                    break;
484                case ::gig::vcf_res_ctrl_none:
485                default:
486                    ctrl = 0;
487          }          }
488          Reset();  
489            return ctrl;
490      }      }
491    
492      /**      void Voice::TriggerEG1(const EGInfo& egInfo, double velrelease, double velocityAttenuation, uint sampleRate, uint8_t velocity) {
493       *  Kill the voice in regular sense. Let the voice render audio until          EG1.setStateOptions(
494       *  the kill event actually occured and then fade down the volume level              pRegion->EG1Options.AttackCancel,
495       *  very quickly and let the voice die finally. Unlike a normal release              pRegion->EG1Options.AttackHoldCancel,
496       *  of a voice, a kill process cannot be cancalled and is therefore              pRegion->EG1Options.Decay1Cancel,
497       *  usually used for voice stealing and key group conflicts.              pRegion->EG1Options.Decay2Cancel,
498       *              pRegion->EG1Options.ReleaseCancel
499       *  @param itKillEvent - event which caused the voice to be killed          );
500       */          EG1.trigger(pRegion->EG1PreAttack,
501      void Voice::Kill(Pool<Event>::Iterator& itKillEvent) {                      RTMath::Max(pRegion->EG1Attack, 0.0316) * egInfo.Attack,
502          if (itTriggerEvent && itKillEvent->FragmentPos() <= itTriggerEvent->FragmentPos()) return;                      pRegion->EG1Hold,
503          this->itKillEvent = itKillEvent;                      pRegion->EG1Decay1 * egInfo.Decay * velrelease,
504                        pRegion->EG1Decay2 * egInfo.Decay * velrelease,
505                        pRegion->EG1InfiniteSustain,
506                        (pNote && pNote->Override.Sustain.Final) ?
507                            pNote->Override.Sustain.Value :
508                            pRegion->EG1Sustain * (pNote ? pNote->Override.Sustain.Value : 1.f),
509                        RTMath::Max(pRegion->EG1Release * velrelease, 0.014) * egInfo.Release,
510                        velocityAttenuation,
511                        sampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
512        }
513    
514        void Voice::TriggerEG2(const EGInfo& egInfo, double velrelease, double velocityAttenuation, uint sampleRate, uint8_t velocity) {
515            EG2.setStateOptions(
516                pRegion->EG2Options.AttackCancel,
517                pRegion->EG2Options.AttackHoldCancel,
518                pRegion->EG2Options.Decay1Cancel,
519                pRegion->EG2Options.Decay2Cancel,
520                pRegion->EG2Options.ReleaseCancel
521            );
522            EG2.trigger(uint(RgnInfo.EG2PreAttack),
523                        RgnInfo.EG2Attack * egInfo.Attack,
524                        false,
525                        RgnInfo.EG2Decay1 * egInfo.Decay * velrelease,
526                        RgnInfo.EG2Decay2 * egInfo.Decay * velrelease,
527                        RgnInfo.EG2InfiniteSustain,
528                        uint(RgnInfo.EG2Sustain),
529                        RgnInfo.EG2Release * egInfo.Release * velrelease,
530                        velocityAttenuation,
531                        sampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
532        }
533    
534        void Voice::ProcessGroupEvent(RTList<Event>::Iterator& itEvent) {
535            dmsg(4,("Voice %p processGroupEvents event type=%d", (void*)this, itEvent->Type));
536    
537            // TODO: The SustainPedal condition could be wrong, maybe the
538            // check should be if this Voice is in release stage or is a
539            // release sample instead. Need to test this in GSt.
540            // -- Andreas
541            //
542            // Commented sustain pedal check out. I don't think voices of the same
543            // note should be stopped at all, because it doesn't sound naturally
544            // with a drumkit.
545            // -- Christian, 2013-01-08
546            if (itEvent->Param.Note.Key != HostKey() /*||
547                !GetGigEngineChannel()->SustainPedal*/) {
548                dmsg(4,("Voice %p - kill", (void*)this));
549    
550                // kill the voice fast
551                pEG1->enterFadeOutStage();
552            }
553        }
554    
555        void Voice::CalculateFadeOutCoeff(float FadeOutTime, float SampleRate) {
556            EG1.CalculateFadeOutCoeff(FadeOutTime, SampleRate);
557        }
558    
559        int Voice::CalculatePan(uint8_t pan) {
560            int p;
561            // Gst behaviour: -64 and 63 are special cases
562            if (RgnInfo.Pan == -64)     p = pan * 2 - 127;
563            else if (RgnInfo.Pan == 63) p = pan * 2;
564            else                        p = pan + RgnInfo.Pan;
565    
566            if (p < 0) return 0;
567            if (p > 127) return 127;
568            return p;
569        }
570    
571        release_trigger_t Voice::GetReleaseTriggerFlags() {
572            release_trigger_t flags =
573                (pRegion->NoNoteOffReleaseTrigger) ?
574                    release_trigger_none : release_trigger_noteoff; //HACK: currently this method is actually only called by EngineBase if it already knows that this voice requires release trigger, so I took the short way instead of checking (again) the existence of a ::gig::dimension_releasetrigger
575            switch (pRegion->SustainReleaseTrigger) {
576                case ::gig::sust_rel_trg_none:
577                    break;
578                case ::gig::sust_rel_trg_maxvelocity:
579                    flags |= release_trigger_sustain_maxvelocity;
580                    break;
581                case ::gig::sust_rel_trg_keyvelocity:
582                    flags |= release_trigger_sustain_keyvelocity;
583                    break;
584            }
585            return flags;
586      }      }
587    
588  }} // namespace LinuxSampler::gig  }} // namespace LinuxSampler::gig
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