/[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 322 by senkov, Mon Dec 13 03:33:59 2004 UTC revision 3118 by schoenebeck, Fri Apr 21 13:33:03 2017 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 - 2016 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    
 #include "EGADSR.h"  
 #include "Manipulator.h"  
26  #include "../../common/Features.h"  #include "../../common/Features.h"
27  #include "Synthesizer.h"  #include "Synthesizer.h"
28    #include "Profiler.h"
29    #include "Engine.h"
30    #include "EngineChannel.h"
31    
32  #include "Voice.h"  #include "Voice.h"
33    
34  namespace LinuxSampler { namespace gig {  namespace LinuxSampler { namespace gig {
35    
36      const float Voice::FILTER_CUTOFF_COEFF(CalculateFilterCutoffCoeff());      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;  
   
         // select synthesis implementation (currently either pure C++ or MMX+SSE(1))  
         SYNTHESIS_MODE_SET_IMPLEMENTATION(SynthesisMode, Features::supportsMMX() && Features::supportsSSE());  
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)  
      *  @param VoiceStealing       - wether the voice is allowed to steal voices for further subvoices  
      *  @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, bool VoiceStealing) {  
         if (!pInstrument) {  
            dmsg(1,("voice::trigger: !pInstrument\n"));  
            exit(EXIT_FAILURE);  
         }  
         if (itNoteOnEvent->FragmentPos() > pEngine->MaxSamplesPerCycle) { // FIXME: should be removed before the final release (purpose: just a sanity check for debugging)  
             dmsg(1,("Voice::Trigger(): ERROR, TriggerDelay > Totalsamples\n"));  
         }  
   
         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, VoiceStealing);  
                     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]);  
   
         pSample = pDimRgn->pSample; // sample won't change until the voice is finished  
63    
64          // select channel mode (mono or stereo)          si.HasLoops       = pRegion->SampleLoops;
65          SYNTHESIS_MODE_SET_CHANNELS(SynthesisMode, pSample->Channels == 2);          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          // get starting crossfade volume level          return si;
71          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;  
         }  
72    
73          PanLeft  = 1.0f - float(RTMath::Max(pDimRgn->Pan, 0)) /  63.0f;      Voice::RegionInfo Voice::GetRegionInfo() {
74          PanRight = 1.0f - float(RTMath::Min(pDimRgn->Pan, 0)) / -64.0f;          RegionInfo ri;
75            ri.UnityNote = pRegion->UnityNote;
76            ri.FineTune  = pRegion->FineTune;
77            ri.Pan       = pRegion->Pan;
78            ri.SampleStartOffset = pRegion->SampleStartOffset;
79    
80          Pos = pDimRgn->SampleStartOffset; // offset where we should start playback of sample (0 - 2000 sample points)          ri.EG2PreAttack        = pRegion->EG2PreAttack;
81            ri.EG2Attack           = pRegion->EG2Attack;
82            ri.EG2Decay1           = pRegion->EG2Decay1;
83            ri.EG2Decay2           = pRegion->EG2Decay2;
84            ri.EG2Sustain          = pRegion->EG2Sustain;
85            ri.EG2InfiniteSustain  = pRegion->EG2InfiniteSustain;
86            ri.EG2Release          = pRegion->EG2Release;
87    
88          // Check if the sample needs disk streaming or is too short for that          ri.EG3Attack     = pRegion->EG3Attack;
89          long cachedsamples = pSample->GetCache().Size / pSample->FrameSize;          ri.EG3Depth      = pRegion->EG3Depth;
90          DiskVoice          = cachedsamples < pSample->SamplesTotal;          ri.VCFEnabled    = pRegion->VCFEnabled;
91            ri.VCFType       = Filter::vcf_type_t(pRegion->VCFType);
92            ri.VCFResonance  = pRegion->VCFResonance;
93    
94          if (DiskVoice) { // voice to be streamed from disk          ri.ReleaseTriggerDecay = 0.01053 * (256 >> pRegion->ReleaseTriggerDecay);
             MaxRAMPos = cachedsamples - (pEngine->MaxSamplesPerCycle << MAX_PITCH) / pSample->Channels; //TODO: this calculation is too pessimistic and may better be moved to Render() method, so it calculates MaxRAMPos dependent to the current demand of sample points to be rendered (e.g. in case of JACK)  
95    
96              // check if there's a loop defined which completely fits into the cached (RAM) part of the sample          return ri;
97              if (pSample->Loops && pSample->LoopEnd <= MaxRAMPos) {      }
                 RAMLoop        = true;  
                 LoopCyclesLeft = pSample->LoopPlayCount;  
             }  
             else RAMLoop = false;  
98    
99              if (pDiskThread->OrderNewStream(&DiskStreamRef, pSample, MaxRAMPos, !RAMLoop) < 0) {      Voice::InstrumentInfo Voice::GetInstrumentInfo() {
100                  dmsg(1,("Disk stream order failed!\n"));          InstrumentInfo ii;
101                  KillImmediately();          ii.FineTune = GetGigEngineChannel()->pInstrument->FineTune;
102                  return -1;          ii.PitchbendRange = GetGigEngineChannel()->pInstrument->PitchbendRange;
             }  
             dmsg(4,("Disk voice launched (cached samples: %d, total Samples: %d, MaxRAMPos: %d, RAMLooping: %s)\n", cachedsamples, pSample->SamplesTotal, MaxRAMPos, (RAMLoop) ? "yes" : "no"));  
         }  
         else { // RAM only voice  
             MaxRAMPos = cachedsamples;  
             if (pSample->Loops) {  
                 RAMLoop        = true;  
                 LoopCyclesLeft = pSample->LoopPlayCount;  
             }  
             else RAMLoop = false;  
             dmsg(4,("RAM only voice launched (Looping: %s)\n", (RAMLoop) ? "yes" : "no"));  
         }  
103    
104            return ii;
105        }
106    
107          // calculate initial pitch value      double Voice::GetSampleAttenuation() {
108          {          return pRegion->SampleAttenuation;
109              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  
         }  
   
         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)  
   
         // setup EG 1 (VCA EG)  
         {  
             // get current value of EG1 controller  
             double eg1controllervalue;  
             switch (pDimRgn->EG1Controller.type) {  
                 case ::gig::eg1_ctrl_t::type_none: // no controller defined  
                     eg1controllervalue = 0;  
                     break;  
                 case ::gig::eg1_ctrl_t::type_channelaftertouch:  
                     eg1controllervalue = 0; // TODO: aftertouch not yet supported  
                     break;  
                 case ::gig::eg1_ctrl_t::type_velocity:  
                     eg1controllervalue = itNoteOnEvent->Param.Note.Velocity;  
                     break;  
                 case ::gig::eg1_ctrl_t::type_controlchange: // MIDI control change controller  
                     eg1controllervalue = pEngine->ControllerTable[pDimRgn->EG1Controller.controller_number];  
                     break;  
             }  
             if (pDimRgn->EG1ControllerInvert) eg1controllervalue = 127 - eg1controllervalue;  
110    
111              // calculate influence of EG1 controller on EG1's parameters (TODO: needs to be fine tuned)      double Voice::GetVelocityAttenuation(uint8_t MIDIKeyVelocity) {
112              double eg1attack  = (pDimRgn->EG1ControllerAttackInfluence)  ? 0.0001 * (double) (1 << pDimRgn->EG1ControllerAttackInfluence)  * eg1controllervalue : 0.0;          return pRegion->GetVelocityAttenuation(MIDIKeyVelocity);
113              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);  
         }  
114    
115        double Voice::GetVelocityRelease(uint8_t MIDIKeyVelocity) {
116            return pRegion->GetVelocityRelease(MIDIKeyVelocity);
117        }
118    
119          // setup EG 2 (VCF Cutoff EG)      void Voice::ProcessCCEvent(RTList<Event>::Iterator& itEvent) {
120          {          if (itEvent->Type == Event::type_control_change && itEvent->Param.CC.Controller) { // if (valid) MIDI control change event
121              // get current value of EG2 controller              if (pRegion->AttenuationController.type == ::gig::attenuation_ctrl_t::type_controlchange &&
122              double eg2controllervalue;                  itEvent->Param.CC.Controller == pRegion->AttenuationController.controller_number) {
123              switch (pDimRgn->EG2Controller.type) {                  CrossfadeSmoother.update(AbstractEngine::CrossfadeCurve[CrossfadeAttenuation(itEvent->Param.CC.Value)]);
                 case ::gig::eg2_ctrl_t::type_none: // no controller defined  
                     eg2controllervalue = 0;  
                     break;  
                 case ::gig::eg2_ctrl_t::type_channelaftertouch:  
                     eg2controllervalue = 0; // TODO: aftertouch not yet supported  
                     break;  
                 case ::gig::eg2_ctrl_t::type_velocity:  
                     eg2controllervalue = itNoteOnEvent->Param.Note.Velocity;  
                     break;  
                 case ::gig::eg2_ctrl_t::type_controlchange: // MIDI control change controller  
                     eg2controllervalue = pEngine->ControllerTable[pDimRgn->EG2Controller.controller_number];  
                     break;  
124              }              }
             if (pDimRgn->EG2ControllerInvert) eg2controllervalue = 127 - eg2controllervalue;  
   
             // calculate influence of EG2 controller on EG2's parameters (TODO: needs to be fine tuned)  
             double eg2attack  = (pDimRgn->EG2ControllerAttackInfluence)  ? 0.0001 * (double) (1 << pDimRgn->EG2ControllerAttackInfluence)  * eg2controllervalue : 0.0;  
             double eg2decay   = (pDimRgn->EG2ControllerDecayInfluence)   ? 0.0001 * (double) (1 << pDimRgn->EG2ControllerDecayInfluence)   * eg2controllervalue : 0.0;  
             double eg2release = (pDimRgn->EG2ControllerReleaseInfluence) ? 0.0001 * (double) (1 << pDimRgn->EG2ControllerReleaseInfluence) * eg2controllervalue : 0.0;  
   
             pEG2->Trigger(pDimRgn->EG2PreAttack,  
                           pDimRgn->EG2Attack + eg2attack,  
                           false,  
                           pSample->LoopStart,  
                           pDimRgn->EG2Decay1 + eg2decay,  
                           pDimRgn->EG2Decay2 + eg2decay,  
                           pDimRgn->EG2InfiniteSustain,  
                           pDimRgn->EG2Sustain,  
                           pDimRgn->EG2Release + eg2release,  
                           Delay);  
125          }          }
126        }
127    
128        void Voice::ProcessChannelPressureEvent(RTList<Event>::Iterator& itEvent) {
129          // setup EG 3 (VCO EG)          if (itEvent->Type == Event::type_channel_pressure) { // if (valid) MIDI channel pressure (aftertouch) event
130          {              if (pRegion->AttenuationController.type == ::gig::attenuation_ctrl_t::type_channelaftertouch) {
131            double eg3depth = RTMath::CentsToFreqRatio(pDimRgn->EG3Depth);                  CrossfadeSmoother.update(AbstractEngine::CrossfadeCurve[CrossfadeAttenuation(itEvent->Param.ChannelPressure.Value)]);
132            pEG3->Trigger(eg3depth, pDimRgn->EG3Attack, Delay);              }
133          }          }
134        }
135    
136        void Voice::ProcessPolyphonicKeyPressureEvent(RTList<Event>::Iterator& itEvent) {
137            // Not used so far
138        }
139    
140          // setup LFO 1 (VCA LFO)      void Voice::ProcessCutoffEvent(RTList<Event>::Iterator& itEvent) {
141          {          int ccvalue = itEvent->Param.CC.Value;
142              uint16_t lfo1_internal_depth;          if (VCFCutoffCtrl.value == ccvalue) return;
143              switch (pDimRgn->LFO1Controller) {          VCFCutoffCtrl.value = ccvalue;
144                  case ::gig::lfo1_ctrl_internal:          if (pRegion->VCFCutoffControllerInvert)  ccvalue = 127 - ccvalue;
145                      lfo1_internal_depth  = pDimRgn->LFO1InternalDepth;          if (ccvalue < pRegion->VCFVelocityScale) ccvalue = pRegion->VCFVelocityScale;
146                      pLFO1->ExtController = 0; // no external controller          float cutoff = CutoffBase * float(ccvalue);
147                      break;          if (cutoff > 127.0f) cutoff = 127.0f;
                 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);  
         }  
148    
149            VCFCutoffCtrl.fvalue = cutoff; // needed for initialization of fFinalCutoff next time
150            fFinalCutoff = cutoff;
151        }
152    
153          // setup LFO 2 (VCF Cutoff LFO)      double Voice::CalculateCrossfadeVolume(uint8_t MIDIKeyVelocity) {
154          {          float crossfadeVolume;
155              uint16_t lfo2_internal_depth;          switch (pRegion->AttenuationController.type) {
156              switch (pDimRgn->LFO2Controller) {              case ::gig::attenuation_ctrl_t::type_channelaftertouch:
157                  case ::gig::lfo2_ctrl_internal:                  crossfadeVolume = Engine::CrossfadeCurve[CrossfadeAttenuation(GetGigEngineChannel()->ControllerTable[128])];
158                      lfo2_internal_depth  = pDimRgn->LFO2InternalDepth;                  break;
159                      pLFO2->ExtController = 0; // no external controller              case ::gig::attenuation_ctrl_t::type_velocity:
160                      break;                  crossfadeVolume = Engine::CrossfadeCurve[CrossfadeAttenuation(MIDIKeyVelocity)];
161                  case ::gig::lfo2_ctrl_modwheel:                  break;
162                      lfo2_internal_depth  = 0;              case ::gig::attenuation_ctrl_t::type_controlchange: //FIXME: currently not sample accurate
163                      pLFO2->ExtController = 1; // MIDI controller 1                  crossfadeVolume = Engine::CrossfadeCurve[CrossfadeAttenuation(GetGigEngineChannel()->ControllerTable[pRegion->AttenuationController.controller_number])];
164                      break;                  break;
165                  case ::gig::lfo2_ctrl_foot:              case ::gig::attenuation_ctrl_t::type_none: // no crossfade defined
166                      lfo2_internal_depth  = 0;              default:
167                      pLFO2->ExtController = 4; // MIDI controller 4                  crossfadeVolume = 1.0f;
                     break;  
                 case ::gig::lfo2_ctrl_internal_modwheel:  
                     lfo2_internal_depth  = pDimRgn->LFO2InternalDepth;  
                     pLFO2->ExtController = 1; // MIDI controller 1  
                     break;  
                 case ::gig::lfo2_ctrl_internal_foot:  
                     lfo2_internal_depth  = pDimRgn->LFO2InternalDepth;  
                     pLFO2->ExtController = 4; // MIDI controller 4  
                     break;  
                 default:  
                     lfo2_internal_depth  = 0;  
                     pLFO2->ExtController = 0; // no external controller  
             }  
             pLFO2->Trigger(pDimRgn->LFO2Frequency,  
                           lfo2_internal_depth,  
                           pDimRgn->LFO2ControlDepth,  
                           pEngine->ControllerTable[pLFO2->ExtController],  
                           pDimRgn->LFO2FlipPhase,  
                           pEngine->SampleRate,  
                           Delay);  
168          }          }
169    
170            return crossfadeVolume;
171        }
172    
173          // setup LFO 3 (VCO LFO)      double Voice::GetEG1ControllerValue(uint8_t MIDIKeyVelocity) {
174          {          double eg1controllervalue = 0;
175              uint16_t lfo3_internal_depth;          switch (pRegion->EG1Controller.type) {
176              switch (pDimRgn->LFO3Controller) {              case ::gig::eg1_ctrl_t::type_none: // no controller defined
177                  case ::gig::lfo3_ctrl_internal:                  eg1controllervalue = 0;
178                      lfo3_internal_depth  = pDimRgn->LFO3InternalDepth;                  break;
179                      pLFO3->ExtController = 0; // no external controller              case ::gig::eg1_ctrl_t::type_channelaftertouch:
180                      break;                  eg1controllervalue = GetGigEngineChannel()->ControllerTable[128];
181                  case ::gig::lfo3_ctrl_modwheel:                  break;
182                      lfo3_internal_depth  = 0;              case ::gig::eg1_ctrl_t::type_velocity:
183                      pLFO3->ExtController = 1; // MIDI controller 1                  eg1controllervalue = MIDIKeyVelocity;
184                      break;                  break;
185                  case ::gig::lfo3_ctrl_aftertouch:              case ::gig::eg1_ctrl_t::type_controlchange: // MIDI control change controller
186                      lfo3_internal_depth  = 0;                  eg1controllervalue = GetGigEngineChannel()->ControllerTable[pRegion->EG1Controller.controller_number];
187                      pLFO3->ExtController = 0; // TODO: aftertouch not implemented yet                  break;
                     break;  
                 case ::gig::lfo3_ctrl_internal_modwheel:  
                     lfo3_internal_depth  = pDimRgn->LFO3InternalDepth;  
                     pLFO3->ExtController = 1; // MIDI controller 1  
                     break;  
                 case ::gig::lfo3_ctrl_internal_aftertouch:  
                     lfo3_internal_depth  = pDimRgn->LFO3InternalDepth;  
                     pLFO1->ExtController = 0; // TODO: aftertouch not implemented yet  
                     break;  
                 default:  
                     lfo3_internal_depth  = 0;  
                     pLFO3->ExtController = 0; // no external controller  
             }  
             pLFO3->Trigger(pDimRgn->LFO3Frequency,  
                           lfo3_internal_depth,  
                           pDimRgn->LFO3ControlDepth,  
                           pEngine->ControllerTable[pLFO3->ExtController],  
                           false,  
                           pEngine->SampleRate,  
                           Delay);  
188          }          }
189            if (pRegion->EG1ControllerInvert) eg1controllervalue = 127 - eg1controllervalue;
190    
191            return eg1controllervalue;
192        }
193    
194          #if FORCE_FILTER_USAGE      Voice::EGInfo Voice::CalculateEG1ControllerInfluence(double eg1ControllerValue) {
195          SYNTHESIS_MODE_SET_FILTER(SynthesisMode, true);          EGInfo eg;
196          #else // use filter only if instrument file told so          // (eg1attack is different from the others)
197          SYNTHESIS_MODE_SET_FILTER(SynthesisMode, pDimRgn->VCFEnabled);          if (pRegion->EG1Attack < 1e-8 && // attack in gig == 0
198          #endif // FORCE_FILTER_USAGE              (pRegion->EG1ControllerAttackInfluence == 0 ||
199          if (pDimRgn->VCFEnabled) {               eg1ControllerValue <= 10)) { // strange GSt special case
200              #ifdef OVERRIDE_FILTER_CUTOFF_CTRL              eg.Attack = 0; // this will force the attack to be 0 in the call to EG1.trigger
201              VCFCutoffCtrl.controller = OVERRIDE_FILTER_CUTOFF_CTRL;          } else {
202              #else // use the one defined in the instrument file              eg.Attack  = (pRegion->EG1ControllerAttackInfluence)  ?
203              switch (pDimRgn->VCFCutoffController) {                  1 + 0.031 * (double) (pRegion->EG1ControllerAttackInfluence == 1 ?
204                  case ::gig::vcf_cutoff_ctrl_modwheel:                                        1 : 1 << pRegion->EG1ControllerAttackInfluence) * eg1ControllerValue : 1.0;
205                      VCFCutoffCtrl.controller = 1;          }
206                      break;          eg.Decay   = (pRegion->EG1ControllerDecayInfluence)   ? 1 + 0.00775 * (double) (1 << pRegion->EG1ControllerDecayInfluence)   * eg1ControllerValue : 1.0;
207                  case ::gig::vcf_cutoff_ctrl_effect1:          eg.Release = (pRegion->EG1ControllerReleaseInfluence) ? 1 + 0.00775 * (double) (1 << pRegion->EG1ControllerReleaseInfluence) * eg1ControllerValue : 1.0;
208                      VCFCutoffCtrl.controller = 12;  
209                      break;          return eg;
210                  case ::gig::vcf_cutoff_ctrl_effect2:      }
211                      VCFCutoffCtrl.controller = 13;  
212                      break;      double Voice::GetEG2ControllerValue(uint8_t MIDIKeyVelocity) {
213                  case ::gig::vcf_cutoff_ctrl_breath:          double eg2controllervalue = 0;
214                      VCFCutoffCtrl.controller = 2;          switch (pRegion->EG2Controller.type) {
215                      break;              case ::gig::eg2_ctrl_t::type_none: // no controller defined
216                  case ::gig::vcf_cutoff_ctrl_foot:                  eg2controllervalue = 0;
217                      VCFCutoffCtrl.controller = 4;                  break;
218                      break;              case ::gig::eg2_ctrl_t::type_channelaftertouch:
219                  case ::gig::vcf_cutoff_ctrl_sustainpedal:                  eg2controllervalue = GetGigEngineChannel()->ControllerTable[128];
220                      VCFCutoffCtrl.controller = 64;                  break;
221                      break;              case ::gig::eg2_ctrl_t::type_velocity:
222                  case ::gig::vcf_cutoff_ctrl_softpedal:                  eg2controllervalue = MIDIKeyVelocity;
223                      VCFCutoffCtrl.controller = 67;                  break;
224                      break;              case ::gig::eg2_ctrl_t::type_controlchange: // MIDI control change controller
225                  case ::gig::vcf_cutoff_ctrl_genpurpose7:                  eg2controllervalue = GetGigEngineChannel()->ControllerTable[pRegion->EG2Controller.controller_number];
226                      VCFCutoffCtrl.controller = 82;                  break;
227                      break;          }
228                  case ::gig::vcf_cutoff_ctrl_genpurpose8:          if (pRegion->EG2ControllerInvert) eg2controllervalue = 127 - eg2controllervalue;
                     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  
229    
230              #ifdef OVERRIDE_FILTER_RES_CTRL          return eg2controllervalue;
231              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  
232    
233              #ifndef OVERRIDE_FILTER_TYPE      Voice::EGInfo Voice::CalculateEG2ControllerInfluence(double eg2ControllerValue) {
234              FilterLeft.SetType(pDimRgn->VCFType);          EGInfo eg;
235              FilterRight.SetType(pDimRgn->VCFType);          eg.Attack  = (pRegion->EG2ControllerAttackInfluence)  ? 1 + 0.00775 * (double) (1 << pRegion->EG2ControllerAttackInfluence)  * eg2ControllerValue : 1.0;
236              #else // override filter type          eg.Decay   = (pRegion->EG2ControllerDecayInfluence)   ? 1 + 0.00775 * (double) (1 << pRegion->EG2ControllerDecayInfluence)   * eg2ControllerValue : 1.0;
237              FilterLeft.SetType(OVERRIDE_FILTER_TYPE);          eg.Release = (pRegion->EG2ControllerReleaseInfluence) ? 1 + 0.00775 * (double) (1 << pRegion->EG2ControllerReleaseInfluence) * eg2ControllerValue : 1.0;
             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)  
238    
239              VCFCutoffCtrl.fvalue    = cutoff - FILTER_CUTOFF_MIN;          return eg;
240              VCFResonanceCtrl.fvalue = resonance;      }
241    
242              FilterUpdateCounter = -1;      void Voice::InitLFO1() {
243          }          uint16_t lfo1_internal_depth;
244          else {          switch (pRegion->LFO1Controller) {
245              VCFCutoffCtrl.controller    = 0;              case ::gig::lfo1_ctrl_internal:
246              VCFResonanceCtrl.controller = 0;                  lfo1_internal_depth  = pRegion->LFO1InternalDepth;
247                    pLFO1->ExtController = 0; // no external controller
248                    bLFO1Enabled         = (lfo1_internal_depth > 0);
249                    break;
250                case ::gig::lfo1_ctrl_modwheel:
251                    lfo1_internal_depth  = 0;
252                    pLFO1->ExtController = 1; // MIDI controller 1
253                    bLFO1Enabled         = (pRegion->LFO1ControlDepth > 0);
254                    break;
255                case ::gig::lfo1_ctrl_breath:
256                    lfo1_internal_depth  = 0;
257                    pLFO1->ExtController = 2; // MIDI controller 2
258                    bLFO1Enabled         = (pRegion->LFO1ControlDepth > 0);
259                    break;
260                case ::gig::lfo1_ctrl_internal_modwheel:
261                    lfo1_internal_depth  = pRegion->LFO1InternalDepth;
262                    pLFO1->ExtController = 1; // MIDI controller 1
263                    bLFO1Enabled         = (lfo1_internal_depth > 0 || pRegion->LFO1ControlDepth > 0);
264                    break;
265                case ::gig::lfo1_ctrl_internal_breath:
266                    lfo1_internal_depth  = pRegion->LFO1InternalDepth;
267                    pLFO1->ExtController = 2; // MIDI controller 2
268                    bLFO1Enabled         = (lfo1_internal_depth > 0 || pRegion->LFO1ControlDepth > 0);
269                    break;
270                default:
271                    lfo1_internal_depth  = 0;
272                    pLFO1->ExtController = 0; // no external controller
273                    bLFO1Enabled         = false;
274            }
275            if (bLFO1Enabled) {
276                pLFO1->trigger(pRegion->LFO1Frequency,
277                               start_level_min,
278                               lfo1_internal_depth,
279                               pRegion->LFO1ControlDepth,
280                               pRegion->LFO1FlipPhase,
281                               pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
282                pLFO1->updateByMIDICtrlValue(pLFO1->ExtController ? GetGigEngineChannel()->ControllerTable[pLFO1->ExtController] : 0);
283                pLFO1->setScriptDepthFactor(pNote->Override.AmpLFODepth);
284                pLFO1->setScriptFrequencyFactor(pNote->Override.AmpLFOFreq, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
285          }          }
   
         return 0; // success  
286      }      }
287    
288      /**      void Voice::InitLFO2() {
289       *  Renders the audio data for this voice for the current audio fragment.          uint16_t lfo2_internal_depth;
290       *  The sample input data can either come from RAM (cached sample or sample          switch (pRegion->LFO2Controller) {
291       *  part) or directly from disk. The output signal will be rendered by              case ::gig::lfo2_ctrl_internal:
292       *  resampling / interpolation. If this voice is a disk streaming voice and                  lfo2_internal_depth  = pRegion->LFO2InternalDepth;
293       *  the voice completely played back the cached RAM part of the sample, it                  pLFO2->ExtController = 0; // no external controller
294       *  will automatically switch to disk playback for the next RenderAudio()                  bLFO2Enabled         = (lfo2_internal_depth > 0);
295       *  call.                  break;
296       *              case ::gig::lfo2_ctrl_modwheel:
297       *  @param Samples - number of samples to be rendered in this audio fragment cycle                  lfo2_internal_depth  = 0;
298       */                  pLFO2->ExtController = 1; // MIDI controller 1
299      void Voice::Render(uint Samples) {                  bLFO2Enabled         = (pRegion->LFO2ControlDepth > 0);
300                    break;
301          // select default values for synthesis mode bits              case ::gig::lfo2_ctrl_foot:
302          SYNTHESIS_MODE_SET_INTERPOLATE(SynthesisMode, (PitchBase * PitchBend) != 1.0f);                  lfo2_internal_depth  = 0;
303          SYNTHESIS_MODE_SET_CONSTPITCH(SynthesisMode, true);                  pLFO2->ExtController = 4; // MIDI controller 4
304          SYNTHESIS_MODE_SET_LOOP(SynthesisMode, false);                  bLFO2Enabled         = (pRegion->LFO2ControlDepth > 0);
305                    break;
306          // Reset the synthesis parameter matrix              case ::gig::lfo2_ctrl_internal_modwheel:
307                    lfo2_internal_depth  = pRegion->LFO2InternalDepth;
308          pEngine->ResetSynthesisParameters(Event::destination_vca, this->Volume * this->CrossfadeVolume * pEngine->GlobalVolume);                  pLFO2->ExtController = 1; // MIDI controller 1
309          pEngine->ResetSynthesisParameters(Event::destination_vco, this->PitchBase);                  bLFO2Enabled         = (lfo2_internal_depth > 0 || pRegion->LFO2ControlDepth > 0);
310          pEngine->ResetSynthesisParameters(Event::destination_vcfc, VCFCutoffCtrl.fvalue);                  break;
311          pEngine->ResetSynthesisParameters(Event::destination_vcfr, VCFResonanceCtrl.fvalue);              case ::gig::lfo2_ctrl_internal_foot:
312                    lfo2_internal_depth  = pRegion->LFO2InternalDepth;
313          // Apply events to the synthesis parameter matrix                  pLFO2->ExtController = 4; // MIDI controller 4
314          ProcessEvents(Samples);                  bLFO2Enabled         = (lfo2_internal_depth > 0 || pRegion->LFO2ControlDepth > 0);
315                    break;
316          // Let all modulators write their parameter changes to the synthesis parameter matrix for the current audio fragment              default:
317          pEG1->Process(Samples, pEngine->pMIDIKeyInfo[MIDIKey].pEvents, itTriggerEvent, this->Pos, this->PitchBase * this->PitchBend, itKillEvent);                  lfo2_internal_depth  = 0;
318          pEG2->Process(Samples, pEngine->pMIDIKeyInfo[MIDIKey].pEvents, itTriggerEvent, this->Pos, this->PitchBase * this->PitchBend);                  pLFO2->ExtController = 0; // no external controller
319          if (pEG3->Process(Samples)) { // if pitch EG is active                  bLFO2Enabled         = false;
320              SYNTHESIS_MODE_SET_INTERPOLATE(SynthesisMode, true);          }
321              SYNTHESIS_MODE_SET_CONSTPITCH(SynthesisMode, false);          if (bLFO2Enabled) {
322          }              pLFO2->trigger(pRegion->LFO2Frequency,
323          pLFO1->Process(Samples);                             start_level_max,
324          pLFO2->Process(Samples);                             lfo2_internal_depth,
325          if (pLFO3->Process(Samples)) { // if pitch LFO modulation is active                             pRegion->LFO2ControlDepth,
326              SYNTHESIS_MODE_SET_INTERPOLATE(SynthesisMode, true);                             pRegion->LFO2FlipPhase,
327              SYNTHESIS_MODE_SET_CONSTPITCH(SynthesisMode, false);                             pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
328          }              pLFO2->updateByMIDICtrlValue(pLFO2->ExtController ? GetGigEngineChannel()->ControllerTable[pLFO2->ExtController] : 0);
   
         if (SYNTHESIS_MODE_GET_FILTER(SynthesisMode))  
                 CalculateBiquadParameters(Samples); // calculate the final biquad filter parameters  
   
         switch (this->PlaybackState) {  
   
             case playback_state_ram: {  
                     if (RAMLoop) SYNTHESIS_MODE_SET_LOOP(SynthesisMode, true); // enable looping  
   
                     // render current fragment  
                     Synthesize(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 * (int(Pos) - MaxRAMPos));  
                         Pos -= int(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  
   
                     // render current audio fragment  
                     Synthesize(Samples, ptr, Delay);  
   
                     DiskStreamRef.pStream->IncrementReadPos(int(Pos) * pSample->Channels);  
                     Pos -= int(Pos);  
                 }  
                 break;  
   
             case playback_state_end:  
                 std::cerr << "gig::Voice::Render(): entered with playback_state_end, this is a bug!\n" << std::flush;  
                 break;  
         }  
   
         // Reset synthesis event lists (except VCO, as VCO events apply channel wide currently)  
         pEngine->pSynthesisEvents[Event::destination_vca]->clear();  
         pEngine->pSynthesisEvents[Event::destination_vcfc]->clear();  
         pEngine->pSynthesisEvents[Event::destination_vcfr]->clear();  
   
         // Reset delay  
         Delay = 0;  
   
         itTriggerEvent = Pool<Event>::Iterator();  
   
         // If sample stream or release stage finished, kill the voice  
         if (PlaybackState == playback_state_end || pEG1->GetStage() == EGADSR::stage_end) KillImmediately();  
     }  
   
     /**  
      *  Resets voice variables. Should only be called if rendering process is  
      *  suspended / not running.  
      */  
     void Voice::Reset() {  
         pLFO1->Reset();  
         pLFO2->Reset();  
         pLFO3->Reset();  
         FilterLeft.Reset();  
         FilterRight.Reset();  
         DiskStreamRef.pStream = NULL;  
         DiskStreamRef.hStream = 0;  
         DiskStreamRef.State   = Stream::state_unused;  
         DiskStreamRef.OrderID = 0;  
         PlaybackState = playback_state_end;  
         itTriggerEvent = Pool<Event>::Iterator();  
         itKillEvent    = Pool<Event>::Iterator();  
     }  
   
     /**  
      *  Process the control change event lists of the engine for the current  
      *  audio fragment. Event values will be applied to the synthesis parameter  
      *  matrix.  
      *  
      *  @param Samples - number of samples to be rendered in this audio fragment cycle  
      */  
     void Voice::ProcessEvents(uint Samples) {  
   
         // dispatch control change events  
         RTList<Event>::Iterator itCCEvent = 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 (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;  
                 }  
                 if (itCCEvent->Param.CC.Controller == pLFO1->ExtController) {  
                     pLFO1->SendEvent(itCCEvent);  
                 }  
                 if (itCCEvent->Param.CC.Controller == pLFO2->ExtController) {  
                     pLFO2->SendEvent(itCCEvent);  
                 }  
                 if (itCCEvent->Param.CC.Controller == pLFO3->ExtController) {  
                     pLFO3->SendEvent(itCCEvent);  
                 }  
                 if (pDimRgn->AttenuationController.type == ::gig::attenuation_ctrl_t::type_controlchange &&  
                     itCCEvent->Param.CC.Controller == pDimRgn->AttenuationController.controller_number) { // if crossfade event  
                     *pEngine->pSynthesisEvents[Event::destination_vca]->allocAppend() = *itCCEvent;  
                 }  
             }  
   
             ++itCCEvent;  
329          }          }
330        }
331    
332        void Voice::InitLFO3() {
333          // process pitch events          uint16_t lfo3_internal_depth;
334          {          switch (pRegion->LFO3Controller) {
335              RTList<Event>* pVCOEventList = pEngine->pSynthesisEvents[Event::destination_vco];              case ::gig::lfo3_ctrl_internal:
336              RTList<Event>::Iterator itVCOEvent = pVCOEventList->first();                  lfo3_internal_depth  = pRegion->LFO3InternalDepth;
337              if (Delay) { // skip events that happened before this voice was triggered                  pLFO3->ExtController = 0; // no external controller
338                  while (itVCOEvent && itVCOEvent->FragmentPos() <= Delay) ++itVCOEvent;                  bLFO3Enabled         = (lfo3_internal_depth > 0);
339              }                  break;
340              // apply old pitchbend value until first pitch event occurs              case ::gig::lfo3_ctrl_modwheel:
341              if (this->PitchBend != 1.0) {                  lfo3_internal_depth  = 0;
342                  uint end = (itVCOEvent) ? itVCOEvent->FragmentPos() : Samples;                  pLFO3->ExtController = 1; // MIDI controller 1
343                  for (uint i = Delay; i < end; i++) {                  bLFO3Enabled         = (pRegion->LFO3ControlDepth > 0);
344                      pEngine->pSynthesisParameters[Event::destination_vco][i] *= this->PitchBend;                  break;
345                  }              case ::gig::lfo3_ctrl_aftertouch:
346              }                  lfo3_internal_depth  = 0;
347              float pitch;                  pLFO3->ExtController = CTRL_TABLE_IDX_AFTERTOUCH;
348              while (itVCOEvent) {                  bLFO3Enabled         = true;
349                  RTList<Event>::Iterator itNextVCOEvent = itVCOEvent;                  break;
350                  ++itNextVCOEvent;              case ::gig::lfo3_ctrl_internal_modwheel:
351                    lfo3_internal_depth  = pRegion->LFO3InternalDepth;
352                  // calculate the influence length of this event (in sample points)                  pLFO3->ExtController = 1; // MIDI controller 1
353                  uint end = (itNextVCOEvent) ? itNextVCOEvent->FragmentPos() : Samples;                  bLFO3Enabled         = (lfo3_internal_depth > 0 || pRegion->LFO3ControlDepth > 0);
354                    break;
355                  pitch = RTMath::CentsToFreqRatio(((double) itVCOEvent->Param.Pitch.Pitch / 8192.0) * 200.0); // +-two semitones = +-200 cents              case ::gig::lfo3_ctrl_internal_aftertouch:
356                    lfo3_internal_depth  = pRegion->LFO3InternalDepth;
357                  // apply pitch value to the pitch parameter sequence                  pLFO3->ExtController = CTRL_TABLE_IDX_AFTERTOUCH;
358                  for (uint i = itVCOEvent->FragmentPos(); i < end; i++) {                  bLFO3Enabled         = (lfo3_internal_depth > 0 || pRegion->LFO3ControlDepth > 0);
359                      pEngine->pSynthesisParameters[Event::destination_vco][i] *= pitch;                  break;
360                  }              default:
361                    lfo3_internal_depth  = 0;
362                  itVCOEvent = itNextVCOEvent;                  pLFO3->ExtController = 0; // no external controller
363              }                  bLFO3Enabled         = false;
364              if (!pVCOEventList->isEmpty()) {          }
365                  this->PitchBend = pitch;          if (bLFO3Enabled) {
366                  SYNTHESIS_MODE_SET_INTERPOLATE(SynthesisMode, true);              pLFO3->trigger(pRegion->LFO3Frequency,
367                  SYNTHESIS_MODE_SET_CONSTPITCH(SynthesisMode, false);                             start_level_mid,
368              }                             lfo3_internal_depth,
369                               pRegion->LFO3ControlDepth,
370                               false,
371                               pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
372                pLFO3->updateByMIDICtrlValue(pLFO3->ExtController ? GetGigEngineChannel()->ControllerTable[pLFO3->ExtController] : 0);
373                pLFO3->setScriptDepthFactor(pNote->Override.PitchLFODepth);
374                pLFO3->setScriptFrequencyFactor(pNote->Override.PitchLFOFreq, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
375          }          }
376        }
377    
378          // process volume / attenuation events (TODO: we only handle and _expect_ crossfade events here ATM !)      float Voice::CalculateCutoffBase(uint8_t MIDIKeyVelocity) {
379          {          float cutoff = pRegion->GetVelocityCutoff(MIDIKeyVelocity);
380              RTList<Event>* pVCAEventList = pEngine->pSynthesisEvents[Event::destination_vca];          if (pRegion->VCFKeyboardTracking) {
381              RTList<Event>::Iterator itVCAEvent = pVCAEventList->first();              cutoff *= RTMath::CentsToFreqRatioUnlimited((MIDIKey() - pRegion->VCFKeyboardTrackingBreakpoint) * 100);
382              if (Delay) { // skip events that happened before this voice was triggered          }
383                  while (itVCAEvent && itVCAEvent->FragmentPos() <= Delay) ++itVCAEvent;          return cutoff;
384              }      }
385              float crossfadevolume;  
386              while (itVCAEvent) {      float Voice::CalculateFinalCutoff(float cutoffBase) {
387                  RTList<Event>::Iterator itNextVCAEvent = itVCAEvent;          int cvalue;
388                  ++itNextVCAEvent;          if (VCFCutoffCtrl.controller) {
389                cvalue = GetGigEngineChannel()->ControllerTable[VCFCutoffCtrl.controller];
390                  // calculate the influence length of this event (in sample points)              if (pRegion->VCFCutoffControllerInvert) cvalue = 127 - cvalue;
391                  uint end = (itNextVCAEvent) ? itNextVCAEvent->FragmentPos() : Samples;              // VCFVelocityScale in this case means Minimum cutoff
392                if (cvalue < pRegion->VCFVelocityScale) cvalue = pRegion->VCFVelocityScale;
                 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;  
                 }  
   
                 itVCAEvent = itNextVCAEvent;  
             }  
             if (!pVCAEventList->isEmpty()) this->CrossfadeVolume = crossfadevolume;  
393          }          }
394            else {
395          // process filter cutoff events              cvalue = pRegion->VCFCutoff;
         {  
             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;  
                 }  
   
                 itCutoffEvent = itNextCutoffEvent;  
             }  
             if (!pCutoffEventList->isEmpty()) VCFCutoffCtrl.fvalue = cutoff; // needed for initialization of parameter matrix next time  
396          }          }
397            float fco = cutoffBase * float(cvalue);
398            if (fco > 127.0f) fco = 127.0f;
399    
400          // process filter resonance events          return fco;
401          {      }
             RTList<Event>* pResonanceEventList = pEngine->pSynthesisEvents[Event::destination_vcfr];  
             RTList<Event>::Iterator itResonanceEvent = pResonanceEventList->first();  
             if (Delay) { // skip events that happened before this voice was triggered  
                 while (itResonanceEvent && itResonanceEvent->FragmentPos() <= Delay) ++itResonanceEvent;  
             }  
             while (itResonanceEvent) {  
                 RTList<Event>::Iterator itNextResonanceEvent = itResonanceEvent;  
                 ++itNextResonanceEvent;  
   
                 // calculate the influence length of this event (in sample points)  
                 uint end = (itNextResonanceEvent) ? itNextResonanceEvent->FragmentPos() : Samples;  
   
                 // convert absolute controller value to differential  
                 int ctrldelta = itResonanceEvent->Param.CC.Value - VCFResonanceCtrl.value;  
                 VCFResonanceCtrl.value = itResonanceEvent->Param.CC.Value;  
   
                 float resonancedelta = (float) ctrldelta * 0.00787f; // 0.0..1.0  
   
                 // apply cutoff frequency to the cutoff parameter sequence  
                 for (uint i = itResonanceEvent->FragmentPos(); i < end; i++) {  
                     pEngine->pSynthesisParameters[Event::destination_vcfr][i] += resonancedelta;  
                 }  
402    
403                  itResonanceEvent = itNextResonanceEvent;      uint8_t Voice::GetVCFCutoffCtrl() {
404              }          uint8_t ctrl;
405              if (!pResonanceEventList->isEmpty()) VCFResonanceCtrl.fvalue = pResonanceEventList->last()->Param.CC.Value * 0.00787f; // needed for initialization of parameter matrix next time          switch (pRegion->VCFCutoffController) {
406                case ::gig::vcf_cutoff_ctrl_modwheel:
407                    ctrl = 1;
408                    break;
409                case ::gig::vcf_cutoff_ctrl_effect1:
410                    ctrl = 12;
411                    break;
412                case ::gig::vcf_cutoff_ctrl_effect2:
413                    ctrl = 13;
414                    break;
415                case ::gig::vcf_cutoff_ctrl_breath:
416                    ctrl = 2;
417                    break;
418                case ::gig::vcf_cutoff_ctrl_foot:
419                    ctrl = 4;
420                    break;
421                case ::gig::vcf_cutoff_ctrl_sustainpedal:
422                    ctrl = 64;
423                    break;
424                case ::gig::vcf_cutoff_ctrl_softpedal:
425                    ctrl = 67;
426                    break;
427                case ::gig::vcf_cutoff_ctrl_genpurpose7:
428                    ctrl = 82;
429                    break;
430                case ::gig::vcf_cutoff_ctrl_genpurpose8:
431                    ctrl = 83;
432                    break;
433                case ::gig::vcf_cutoff_ctrl_aftertouch:
434                    ctrl = CTRL_TABLE_IDX_AFTERTOUCH;
435                    break;
436                case ::gig::vcf_cutoff_ctrl_none:
437                default:
438                    ctrl = 0;
439                    break;
440          }          }
441    
442            return ctrl;
443      }      }
444    
445      /**      uint8_t Voice::GetVCFResonanceCtrl() {
446       * Calculate all necessary, final biquad filter parameters.          uint8_t ctrl;
447       *          switch (pRegion->VCFResonanceController) {
448       * @param Samples - number of samples to be rendered in this audio fragment cycle              case ::gig::vcf_res_ctrl_genpurpose3:
449       */                  ctrl = 18;
450      void Voice::CalculateBiquadParameters(uint Samples) {                  break;
451          biquad_param_t bqbase;              case ::gig::vcf_res_ctrl_genpurpose4:
452          biquad_param_t bqmain;                  ctrl = 19;
453          float prev_cutoff = pEngine->pSynthesisParameters[Event::destination_vcfc][0];                  break;
454          float prev_res    = pEngine->pSynthesisParameters[Event::destination_vcfr][0];              case ::gig::vcf_res_ctrl_genpurpose5:
455          FilterLeft.SetParameters(&bqbase, &bqmain, prev_cutoff, prev_res, pEngine->SampleRate);                  ctrl = 80;
456          FilterRight.SetParameters(&bqbase, &bqmain, prev_cutoff, prev_res, pEngine->SampleRate);                  break;
457          pEngine->pBasicFilterParameters[0] = bqbase;              case ::gig::vcf_res_ctrl_genpurpose6:
458          pEngine->pMainFilterParameters[0]  = bqmain;                  ctrl = 81;
459                    break;
460          float* bq;              case ::gig::vcf_res_ctrl_none:
461          for (int i = 1; i < Samples; i++) {              default:
462              // recalculate biquad parameters if cutoff or resonance differ from previous sample point                  ctrl = 0;
463              if (!(i & FILTER_UPDATE_MASK)) {          }
                 if (pEngine->pSynthesisParameters[Event::destination_vcfr][i] != prev_res ||  
                     pEngine->pSynthesisParameters[Event::destination_vcfc][i] != prev_cutoff)  
                 {  
                     prev_cutoff = pEngine->pSynthesisParameters[Event::destination_vcfc][i];  
                     prev_res    = pEngine->pSynthesisParameters[Event::destination_vcfr][i];  
                     FilterLeft.SetParameters(&bqbase, &bqmain, prev_cutoff, prev_res, pEngine->SampleRate);  
                     FilterRight.SetParameters(&bqbase, &bqmain, prev_cutoff, prev_res, pEngine->SampleRate);  
                 }  
             }  
464    
465              //same as 'pEngine->pBasicFilterParameters[i] = bqbase;'          return ctrl;
466              bq    = (float*) &pEngine->pBasicFilterParameters[i];      }
             bq[0] = bqbase.a1;  
             bq[1] = bqbase.a2;  
             bq[2] = bqbase.b0;  
             bq[3] = bqbase.b1;  
             bq[4] = bqbase.b2;  
   
             // same as 'pEngine->pMainFilterParameters[i] = bqmain;'  
             bq    = (float*) &pEngine->pMainFilterParameters[i];  
             bq[0] = bqmain.a1;  
             bq[1] = bqmain.a2;  
             bq[2] = bqmain.b0;  
             bq[3] = bqmain.b1;  
             bq[4] = bqmain.b2;  
         }  
     }  
   
     /**  
      *  Synthesizes the current audio fragment for this voice.  
      *  
      *  @param Samples - number of sample points to be rendered in this audio  
      *                   fragment cycle  
      *  @param pSrc    - pointer to input sample data  
      *  @param Skip    - number of sample points to skip in output buffer  
      */  
     void Voice::Synthesize(uint Samples, sample_t* pSrc, int Skip) {  
         UpdateSynthesisMode();  
         SynthesizeFragment_Fn* f = (SynthesizeFragment_Fn*) SynthesizeFragmentFnPtr;  
         f(*this, Samples, pSrc, Skip);  
     }  
   
     /**  
      *  Determine the respective synthesis function for the given synthesis  
      *  mode.  
      */  
     void Voice::UpdateSynthesisMode() {  
         SynthesizeFragmentFnPtr = GetSynthesisFunction(SynthesisMode);  
     }  
   
     /**  
      *  Immediately kill the voice. This method should not be used to kill  
      *  a normal, active voice, because it doesn't take care of things like  
      *  fading down the volume level to avoid clicks and regular processing  
      *  until the kill event actually occured!  
      *  
      *  @see Kill()  
      */  
     void Voice::KillImmediately() {  
         if (DiskVoice && DiskStreamRef.State != Stream::state_unused) {  
             pDiskThread->OrderDeletionOfStream(&DiskStreamRef);  
         }  
         Reset();  
     }  
   
     /**  
      *  Kill the voice in regular sense. Let the voice render audio until  
      *  the kill event actually occured and then fade down the volume level  
      *  very quickly and let the voice die finally. Unlike a normal release  
      *  of a voice, a kill process cannot be cancalled and is therefore  
      *  usually used for voice stealing and key group conflicts.  
      *  
      *  @param itKillEvent - event which caused the voice to be killed  
      */  
     void Voice::Kill(Pool<Event>::Iterator& itKillEvent) {  
         //FIXME: just two sanity checks for debugging, can be removed  
         if (!itKillEvent) dmsg(1,("gig::Voice::Kill(): ERROR, !itKillEvent !!!\n"));  
         if (itKillEvent && !itKillEvent.isValid()) dmsg(1,("gig::Voice::Kill(): ERROR, itKillEvent invalid !!!\n"));  
467    
468          if (itTriggerEvent && itKillEvent->FragmentPos() <= itTriggerEvent->FragmentPos()) return;      void Voice::TriggerEG1(const EGInfo& egInfo, double velrelease, double velocityAttenuation, uint sampleRate, uint8_t velocity) {
469          this->itKillEvent = itKillEvent;          EG1.trigger(pRegion->EG1PreAttack,
470                        RTMath::Max(pRegion->EG1Attack, 0.0316) * egInfo.Attack,
471                        pRegion->EG1Hold,
472                        pRegion->EG1Decay1 * egInfo.Decay * velrelease,
473                        pRegion->EG1Decay2 * egInfo.Decay * velrelease,
474                        pRegion->EG1InfiniteSustain,
475                        pRegion->EG1Sustain,
476                        RTMath::Max(pRegion->EG1Release * velrelease, 0.014) * egInfo.Release,
477                        velocityAttenuation,
478                        sampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
479        }
480    
481        void Voice::TriggerEG2(const EGInfo& egInfo, double velrelease, double velocityAttenuation, uint sampleRate, uint8_t velocity) {
482            EG2.trigger(uint(RgnInfo.EG2PreAttack),
483                        RgnInfo.EG2Attack * egInfo.Attack,
484                        false,
485                        RgnInfo.EG2Decay1 * egInfo.Decay * velrelease,
486                        RgnInfo.EG2Decay2 * egInfo.Decay * velrelease,
487                        RgnInfo.EG2InfiniteSustain,
488                        uint(RgnInfo.EG2Sustain),
489                        RgnInfo.EG2Release * egInfo.Release * velrelease,
490                        velocityAttenuation,
491                        sampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
492        }
493    
494        void Voice::ProcessGroupEvent(RTList<Event>::Iterator& itEvent) {
495            dmsg(4,("Voice %p processGroupEvents event type=%d", (void*)this, itEvent->Type));
496    
497            // TODO: The SustainPedal condition could be wrong, maybe the
498            // check should be if this Voice is in release stage or is a
499            // release sample instead. Need to test this in GSt.
500            // -- Andreas
501            //
502            // Commented sustain pedal check out. I don't think voices of the same
503            // note should be stopped at all, because it doesn't sound naturally
504            // with a drumkit.
505            // -- Christian, 2013-01-08
506            if (itEvent->Param.Note.Key != HostKey() /*||
507                !GetGigEngineChannel()->SustainPedal*/) {
508                dmsg(4,("Voice %p - kill", (void*)this));
509    
510                // kill the voice fast
511                pEG1->enterFadeOutStage();
512            }
513        }
514    
515        void Voice::CalculateFadeOutCoeff(float FadeOutTime, float SampleRate) {
516            EG1.CalculateFadeOutCoeff(FadeOutTime, SampleRate);
517        }
518    
519        int Voice::CalculatePan(uint8_t pan) {
520            int p;
521            // Gst behaviour: -64 and 63 are special cases
522            if (RgnInfo.Pan == -64)     p = pan * 2 - 127;
523            else if (RgnInfo.Pan == 63) p = pan * 2;
524            else                        p = pan + RgnInfo.Pan;
525    
526            if (p < 0) return 0;
527            if (p > 127) return 127;
528            return p;
529      }      }
530    
531  }} // namespace LinuxSampler::gig  }} // namespace LinuxSampler::gig
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