/[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 829 by schoenebeck, Sat Jan 14 14:07:47 2006 UTC revision 3626 by schoenebeck, Thu Oct 3 14:40:17 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, 2006 Christian Schoenebeck                        *   *   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 24  Line 26 
26  #include "../../common/Features.h"  #include "../../common/Features.h"
27  #include "Synthesizer.h"  #include "Synthesizer.h"
28  #include "Profiler.h"  #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());      // sanity checks: fromGigLfoWave() assumes equally mapped enums
37        static_assert(::gig::lfo_wave_sine == LFO::wave_sine);
38      float Voice::CalculateFilterCutoffCoeff() {      static_assert(::gig::lfo_wave_triangle == LFO::wave_triangle);
39          return log(CONFIG_FILTER_CUTOFF_MAX / CONFIG_FILTER_CUTOFF_MIN);      static_assert(::gig::lfo_wave_saw == LFO::wave_saw);
40        static_assert(::gig::lfo_wave_square == LFO::wave_square);
41    
42        // converts ::gig::lfo_wave_t (libgig) -> LFO::wave_t (LinuxSampler)
43        inline LFO::wave_t fromGigLfoWave(::gig::lfo_wave_t wave) {
44            // simply assuming equally mapped enums on both sides
45            return static_cast<LFO::wave_t>(wave);
46      }      }
47    
48      Voice::Voice() {      Voice::Voice() {
49          pEngine     = NULL;          pEngine = NULL;
50          pDiskThread = NULL;          pEG1 = &EG1;
51          PlaybackState = playback_state_end;          pEG2 = &EG2;
         pLFO1 = new LFOUnsigned(1.0f);  // amplitude EG (0..1 range)  
         pLFO2 = new LFOUnsigned(1.0f);  // filter EG (0..1 range)  
         pLFO3 = new LFOSigned(1200.0f); // pitch EG (-1200..+1200 range)  
         KeyGroup = 0;  
         SynthesisMode = 0; // set all mode bits to 0 first  
         // select synthesis implementation (currently either pure C++ or MMX+SSE(1))  
         #if CONFIG_ASM && ARCH_X86  
         SYNTHESIS_MODE_SET_IMPLEMENTATION(SynthesisMode, Features::supportsMMX() && Features::supportsSSE());  
         #else  
         SYNTHESIS_MODE_SET_IMPLEMENTATION(SynthesisMode, false);  
         #endif  
         SYNTHESIS_MODE_SET_PROFILING(SynthesisMode, Profiler::isEnabled());  
   
         finalSynthesisParameters.filterLeft.Reset();  
         finalSynthesisParameters.filterRight.Reset();  
52      }      }
53    
54      Voice::~Voice() {      Voice::~Voice() {
         if (pLFO1) delete pLFO1;  
         if (pLFO2) delete pLFO2;  
         if (pLFO3) delete pLFO3;  
55      }      }
56    
57      void Voice::SetEngine(Engine* pEngine) {      EngineChannel* Voice::GetGigEngineChannel() {
58          this->pEngine     = pEngine;          return static_cast<EngineChannel*>(pEngineChannel);
         this->pDiskThread = pEngine->pDiskThread;  
         dmsg(6,("Voice::SetEngine()\n"));  
59      }      }
60    
61      /**      void Voice::SetEngine(LinuxSampler::Engine* pEngine) {
62       *  Initializes and triggers the voice, a disk stream will be launched if          Engine* engine = static_cast<Engine*>(pEngine);
63       *  needed.          this->pEngine     = engine;
64       *          this->pDiskThread = engine->pDiskThread;
65       *  @param pEngineChannel - engine channel on which this voice was ordered          dmsg(6,("Voice::SetEngine()\n"));
66       *  @param itNoteOnEvent  - event that caused triggering of this voice      }
      *  @param PitchBend      - MIDI detune factor (-8192 ... +8191)  
      *  @param pDimRgn        - points to the dimension region which provides sample wave(s) and articulation data  
      *  @param VoiceType      - type of this voice  
      *  @param iKeyGroup      - a value > 0 defines a key group in which this voice is member of  
      *  @returns 0 on success, a value < 0 if the voice wasn't triggered  
      *           (either due to an error or e.g. because no region is  
      *           defined for the given key)  
      */  
     int Voice::Trigger(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itNoteOnEvent, int PitchBend, ::gig::DimensionRegion* pDimRgn, type_t VoiceType, int iKeyGroup) {  
         this->pEngineChannel = pEngineChannel;  
         this->pDimRgn        = pDimRgn;  
   
         #if CONFIG_DEVMODE  
         if (itNoteOnEvent->FragmentPos() > pEngine->MaxSamplesPerCycle) { // just a sanity check for debugging  
             dmsg(1,("Voice::Trigger(): ERROR, TriggerDelay > Totalsamples\n"));  
         }  
         #endif // CONFIG_DEVMODE  
   
         Type            = VoiceType;  
         MIDIKey         = itNoteOnEvent->Param.Note.Key;  
         PlaybackState   = playback_state_init; // mark voice as triggered, but no audio rendered yet  
         Delay           = itNoteOnEvent->FragmentPos();  
         itTriggerEvent  = itNoteOnEvent;  
         itKillEvent     = Pool<Event>::Iterator();  
         KeyGroup        = iKeyGroup;  
         pSample         = pDimRgn->pSample; // sample won't change until the voice is finished  
   
         // calculate volume  
         const double velocityAttenuation = pDimRgn->GetVelocityAttenuation(itNoteOnEvent->Param.Note.Velocity);  
   
         Volume = velocityAttenuation / 32768.0f; // we downscale by 32768 to convert from int16 value range to DSP value range (which is -1.0..1.0)  
   
         Volume *= pDimRgn->SampleAttenuation;  
   
         // the volume of release triggered samples depends on note length  
         if (Type == type_release_trigger) {  
             float noteLength = float(pEngine->FrameTime + Delay -  
                                      pEngineChannel->pMIDIKeyInfo[MIDIKey].NoteOnTime) / pEngine->SampleRate;  
             float attenuation = 1 - 0.01053 * (256 >> pDimRgn->ReleaseTriggerDecay) * noteLength;  
             if (attenuation <= 0) return -1;  
             Volume *= attenuation;  
         }  
67    
68          // select channel mode (mono or stereo)      Voice::SampleInfo Voice::GetSampleInfo() {
69          SYNTHESIS_MODE_SET_CHANNELS(SynthesisMode, pSample->Channels == 2);          SampleInfo si;
70            si.SampleRate       = pSample->SamplesPerSecond;
71            si.ChannelCount     = pSample->Channels;
72            si.FrameSize        = pSample->FrameSize;
73            si.BitDepth         = pSample->BitDepth;
74            si.TotalFrameCount  = (uint)pSample->SamplesTotal;
75    
76          // get starting crossfade volume level          si.HasLoops       = pRegion->SampleLoops;
77          switch (pDimRgn->AttenuationController.type) {          si.LoopStart      = (si.HasLoops) ? pRegion->pSampleLoops[0].LoopStart  : 0;
78              case ::gig::attenuation_ctrl_t::type_channelaftertouch:          si.LoopLength     = (si.HasLoops) ? pRegion->pSampleLoops[0].LoopLength : 0;
79                  CrossfadeVolume = 1.0f; //TODO: aftertouch not supported yet          si.LoopPlayCount  = pSample->LoopPlayCount;
80                  break;          si.Unpitched      = !pRegion->PitchTrack;
             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(pEngineChannel->ControllerTable[pDimRgn->AttenuationController.controller_number]);  
                 break;  
             case ::gig::attenuation_ctrl_t::type_none: // no crossfade defined  
             default:  
                 CrossfadeVolume = 1.0f;  
         }  
81    
82          PanLeft  = 1.0f - float(RTMath::Max(pDimRgn->Pan, 0)) /  63.0f;          return si;
83          PanRight = 1.0f - float(RTMath::Min(pDimRgn->Pan, 0)) / -64.0f;      }
84    
85          finalSynthesisParameters.dPos = pDimRgn->SampleStartOffset; // offset where we should start playback of sample (0 - 2000 sample points)      Voice::RegionInfo Voice::GetRegionInfo() {
86          Pos = pDimRgn->SampleStartOffset;          RegionInfo ri;
87            ri.UnityNote = pRegion->UnityNote;
88            ri.FineTune  = pRegion->FineTune;
89            ri.Pan       = pRegion->Pan;
90            ri.SampleStartOffset = pRegion->SampleStartOffset;
91    
92          // Check if the sample needs disk streaming or is too short for that          ri.EG2PreAttack        = pRegion->EG2PreAttack;
93          long cachedsamples = pSample->GetCache().Size / pSample->FrameSize;          ri.EG2Attack           = pRegion->EG2Attack;
94          DiskVoice          = cachedsamples < pSample->SamplesTotal;          ri.EG2Decay1           = pRegion->EG2Decay1;
95            ri.EG2Decay2           = pRegion->EG2Decay2;
96            ri.EG2Sustain          = pRegion->EG2Sustain;
97            ri.EG2InfiniteSustain  = pRegion->EG2InfiniteSustain;
98            ri.EG2Release          = pRegion->EG2Release;
99    
100          if (DiskVoice) { // voice to be streamed from disk          ri.EG3Attack     = pRegion->EG3Attack;
101              MaxRAMPos = cachedsamples - (pEngine->MaxSamplesPerCycle << CONFIG_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)          ri.EG3Depth      = pRegion->EG3Depth;
102            ri.VCFEnabled    = pRegion->VCFEnabled;
103            ri.VCFType       = Filter::vcf_type_t(pRegion->VCFType);
104            ri.VCFResonance  = pRegion->VCFResonance;
105    
106              // check if there's a loop defined which completely fits into the cached (RAM) part of the sample          ri.ReleaseTriggerDecay = 0.01053 * (256 >> pRegion->ReleaseTriggerDecay);
             RAMLoop = (pSample->Loops && pSample->LoopEnd <= MaxRAMPos);  
107    
108              if (pDiskThread->OrderNewStream(&DiskStreamRef, pSample, MaxRAMPos, !RAMLoop) < 0) {          return ri;
109                  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;  
             RAMLoop = (pSample->Loops != 0);  
             dmsg(4,("RAM only voice launched (Looping: %s)\n", (RAMLoop) ? "yes" : "no"));  
         }  
         if (RAMLoop) {  
             loop.uiTotalCycles = pSample->LoopPlayCount;  
             loop.uiCyclesLeft  = pSample->LoopPlayCount;  
             loop.uiStart       = pSample->LoopStart;  
             loop.uiEnd         = pSample->LoopEnd;  
             loop.uiSize        = pSample->LoopSize;  
         }  
   
         // calculate initial pitch value  
         {  
             double pitchbasecents = pDimRgn->FineTune + (int) pEngine->ScaleTuning[MIDIKey % 12];  
             if (pDimRgn->PitchTrack) pitchbasecents += (MIDIKey - (int) pDimRgn->UnityNote) * 100;  
             this->PitchBase = RTMath::CentsToFreqRatio(pitchbasecents) * (double(pSample->SamplesPerSecond) / double(pEngine->SampleRate));  
             this->PitchBend = RTMath::CentsToFreqRatio(((double) PitchBend / 8192.0) * 200.0); // pitchbend wheel +-2 semitones = 200 cents  
         }  
   
         // the length of the decay and release curves are dependent on the velocity  
         const double velrelease = 1 / pDimRgn->GetVelocityRelease(itNoteOnEvent->Param.Note.Velocity);  
   
         // 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 = pEngineChannel->ControllerTable[pDimRgn->EG1Controller.controller_number];  
                     break;  
             }  
             if (pDimRgn->EG1ControllerInvert) eg1controllervalue = 127 - eg1controllervalue;  
110    
111              // calculate influence of EG1 controller on EG1's parameters      Voice::InstrumentInfo Voice::GetInstrumentInfo() {
112              // (eg1attack is different from the others)          InstrumentInfo ii;
113              double eg1attack  = (pDimRgn->EG1ControllerAttackInfluence)  ?          ii.FineTune = GetGigEngineChannel()->pInstrument->FineTune;
114                  1 + 0.031 * (double) (pDimRgn->EG1ControllerAttackInfluence == 1 ?          ii.PitchbendRange = GetGigEngineChannel()->pInstrument->PitchbendRange;
                                       1 : 1 << pDimRgn->EG1ControllerAttackInfluence) * eg1controllervalue : 1.0;  
             double eg1decay   = (pDimRgn->EG1ControllerDecayInfluence)   ? 1 + 0.00775 * (double) (1 << pDimRgn->EG1ControllerDecayInfluence)   * eg1controllervalue : 1.0;  
             double eg1release = (pDimRgn->EG1ControllerReleaseInfluence) ? 1 + 0.00775 * (double) (1 << pDimRgn->EG1ControllerReleaseInfluence) * eg1controllervalue : 1.0;  
   
             EG1.trigger(pDimRgn->EG1PreAttack,  
                         pDimRgn->EG1Attack * eg1attack,  
                         pDimRgn->EG1Hold,  
                         pDimRgn->EG1Decay1 * eg1decay * velrelease,  
                         pDimRgn->EG1Decay2 * eg1decay * velrelease,  
                         pDimRgn->EG1InfiniteSustain,  
                         pDimRgn->EG1Sustain,  
                         pDimRgn->EG1Release * eg1release * velrelease,  
                         velocityAttenuation,  
                         pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);  
         }  
115    
116            return ii;
117        }
118    
119          // setup EG 2 (VCF Cutoff EG)      double Voice::GetSampleAttenuation() {
120          {          return pRegion->SampleAttenuation;
121              // 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 = pEngineChannel->ControllerTable[pDimRgn->EG2Controller.controller_number];  
                     break;  
             }  
             if (pDimRgn->EG2ControllerInvert) eg2controllervalue = 127 - eg2controllervalue;  
122    
123              // calculate influence of EG2 controller on EG2's parameters      double Voice::GetVelocityAttenuation(uint8_t MIDIKeyVelocity) {
124              double eg2attack  = (pDimRgn->EG2ControllerAttackInfluence)  ? 1 + 0.00775 * (double) (1 << pDimRgn->EG2ControllerAttackInfluence)  * eg2controllervalue : 1.0;          return pRegion->GetVelocityAttenuation(MIDIKeyVelocity);
125              double eg2decay   = (pDimRgn->EG2ControllerDecayInfluence)   ? 1 + 0.00775 * (double) (1 << pDimRgn->EG2ControllerDecayInfluence)   * eg2controllervalue : 1.0;      }
             double eg2release = (pDimRgn->EG2ControllerReleaseInfluence) ? 1 + 0.00775 * (double) (1 << pDimRgn->EG2ControllerReleaseInfluence) * eg2controllervalue : 1.0;  
   
             EG2.trigger(pDimRgn->EG2PreAttack,  
                         pDimRgn->EG2Attack * eg2attack,  
                         false,  
                         pDimRgn->EG2Decay1 * eg2decay * velrelease,  
                         pDimRgn->EG2Decay2 * eg2decay * velrelease,  
                         pDimRgn->EG2InfiniteSustain,  
                         pDimRgn->EG2Sustain,  
                         pDimRgn->EG2Release * eg2release * velrelease,  
                         velocityAttenuation,  
                         pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);  
         }  
   
   
         // setup EG 3 (VCO EG)  
         {  
             // if portamento mode is on, we dedicate EG3 purely for portamento, otherwise if portamento is off we do as told by the patch  
             bool  bPortamento = pEngineChannel->PortamentoMode && pEngineChannel->PortamentoPos >= 0.0f;  
             float eg3depth = (bPortamento)  
                                  ? RTMath::CentsToFreqRatio((pEngineChannel->PortamentoPos - (float) MIDIKey) * 100)  
                                  : RTMath::CentsToFreqRatio(pDimRgn->EG3Depth);  
             float eg3time = (bPortamento)  
                                 ? pEngineChannel->PortamentoTime  
                                 : pDimRgn->EG3Attack;  
             EG3.trigger(eg3depth, eg3time, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);  
             dmsg(5,("PortamentoPos=%f, depth=%f, time=%f\n", pEngineChannel->PortamentoPos, eg3depth, eg3time));  
         }  
   
   
         // setup LFO 1 (VCA LFO)  
         {  
             uint16_t lfo1_internal_depth;  
             switch (pDimRgn->LFO1Controller) {  
                 case ::gig::lfo1_ctrl_internal:  
                     lfo1_internal_depth  = pDimRgn->LFO1InternalDepth;  
                     pLFO1->ExtController = 0; // no external controller  
                     bLFO1Enabled         = (lfo1_internal_depth > 0);  
                     break;  
                 case ::gig::lfo1_ctrl_modwheel:  
                     lfo1_internal_depth  = 0;  
                     pLFO1->ExtController = 1; // MIDI controller 1  
                     bLFO1Enabled         = (pDimRgn->LFO1ControlDepth > 0);  
                     break;  
                 case ::gig::lfo1_ctrl_breath:  
                     lfo1_internal_depth  = 0;  
                     pLFO1->ExtController = 2; // MIDI controller 2  
                     bLFO1Enabled         = (pDimRgn->LFO1ControlDepth > 0);  
                     break;  
                 case ::gig::lfo1_ctrl_internal_modwheel:  
                     lfo1_internal_depth  = pDimRgn->LFO1InternalDepth;  
                     pLFO1->ExtController = 1; // MIDI controller 1  
                     bLFO1Enabled         = (lfo1_internal_depth > 0 || pDimRgn->LFO1ControlDepth > 0);  
                     break;  
                 case ::gig::lfo1_ctrl_internal_breath:  
                     lfo1_internal_depth  = pDimRgn->LFO1InternalDepth;  
                     pLFO1->ExtController = 2; // MIDI controller 2  
                     bLFO1Enabled         = (lfo1_internal_depth > 0 || pDimRgn->LFO1ControlDepth > 0);  
                     break;  
                 default:  
                     lfo1_internal_depth  = 0;  
                     pLFO1->ExtController = 0; // no external controller  
                     bLFO1Enabled         = false;  
             }  
             if (bLFO1Enabled) pLFO1->trigger(pDimRgn->LFO1Frequency,  
                                              start_level_max,  
                                              lfo1_internal_depth,  
                                              pDimRgn->LFO1ControlDepth,  
                                              pDimRgn->LFO1FlipPhase,  
                                              pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);  
         }  
126    
127        double Voice::GetVelocityRelease(uint8_t MIDIKeyVelocity) {
128            return pRegion->GetVelocityRelease(MIDIKeyVelocity);
129        }
130    
131          // setup LFO 2 (VCF Cutoff LFO)      void Voice::ProcessCCEvent(RTList<Event>::Iterator& itEvent) {
132          {          if (itEvent->Type == Event::type_control_change && itEvent->Param.CC.Controller) { // if (valid) MIDI control change event
133              uint16_t lfo2_internal_depth;              if (pRegion->AttenuationController.type == ::gig::attenuation_ctrl_t::type_controlchange &&
134              switch (pDimRgn->LFO2Controller) {                  itEvent->Param.CC.Controller == pRegion->AttenuationController.controller_number) {
135                  case ::gig::lfo2_ctrl_internal:                  CrossfadeSmoother.update(AbstractEngine::CrossfadeCurve[CrossfadeAttenuation(itEvent->Param.CC.Value)]);
                     lfo2_internal_depth  = pDimRgn->LFO2InternalDepth;  
                     pLFO2->ExtController = 0; // no external controller  
                     bLFO2Enabled         = (lfo2_internal_depth > 0);  
                     break;  
                 case ::gig::lfo2_ctrl_modwheel:  
                     lfo2_internal_depth  = 0;  
                     pLFO2->ExtController = 1; // MIDI controller 1  
                     bLFO2Enabled         = (pDimRgn->LFO2ControlDepth > 0);  
                     break;  
                 case ::gig::lfo2_ctrl_foot:  
                     lfo2_internal_depth  = 0;  
                     pLFO2->ExtController = 4; // MIDI controller 4  
                     bLFO2Enabled         = (pDimRgn->LFO2ControlDepth > 0);  
                     break;  
                 case ::gig::lfo2_ctrl_internal_modwheel:  
                     lfo2_internal_depth  = pDimRgn->LFO2InternalDepth;  
                     pLFO2->ExtController = 1; // MIDI controller 1  
                     bLFO2Enabled         = (lfo2_internal_depth > 0 || pDimRgn->LFO2ControlDepth > 0);  
                     break;  
                 case ::gig::lfo2_ctrl_internal_foot:  
                     lfo2_internal_depth  = pDimRgn->LFO2InternalDepth;  
                     pLFO2->ExtController = 4; // MIDI controller 4  
                     bLFO2Enabled         = (lfo2_internal_depth > 0 || pDimRgn->LFO2ControlDepth > 0);  
                     break;  
                 default:  
                     lfo2_internal_depth  = 0;  
                     pLFO2->ExtController = 0; // no external controller  
                     bLFO2Enabled         = false;  
136              }              }
             if (bLFO2Enabled) pLFO2->trigger(pDimRgn->LFO2Frequency,  
                                              start_level_max,  
                                              lfo2_internal_depth,  
                                              pDimRgn->LFO2ControlDepth,  
                                              pDimRgn->LFO2FlipPhase,  
                                              pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);  
137          }          }
138        }
139    
140        void Voice::ProcessChannelPressureEvent(RTList<Event>::Iterator& itEvent) {
141          // setup LFO 3 (VCO LFO)          if (itEvent->Type == Event::type_channel_pressure) { // if (valid) MIDI channel pressure (aftertouch) event
142          {              if (pRegion->AttenuationController.type == ::gig::attenuation_ctrl_t::type_channelaftertouch) {
143              uint16_t lfo3_internal_depth;                  CrossfadeSmoother.update(AbstractEngine::CrossfadeCurve[CrossfadeAttenuation(itEvent->Param.ChannelPressure.Value)]);
             switch (pDimRgn->LFO3Controller) {  
                 case ::gig::lfo3_ctrl_internal:  
                     lfo3_internal_depth  = pDimRgn->LFO3InternalDepth;  
                     pLFO3->ExtController = 0; // no external controller  
                     bLFO3Enabled         = (lfo3_internal_depth > 0);  
                     break;  
                 case ::gig::lfo3_ctrl_modwheel:  
                     lfo3_internal_depth  = 0;  
                     pLFO3->ExtController = 1; // MIDI controller 1  
                     bLFO3Enabled         = (pDimRgn->LFO3ControlDepth > 0);  
                     break;  
                 case ::gig::lfo3_ctrl_aftertouch:  
                     lfo3_internal_depth  = 0;  
                     pLFO3->ExtController = 0; // TODO: aftertouch not implemented yet  
                     bLFO3Enabled         = false; // see TODO comment in line above  
                     break;  
                 case ::gig::lfo3_ctrl_internal_modwheel:  
                     lfo3_internal_depth  = pDimRgn->LFO3InternalDepth;  
                     pLFO3->ExtController = 1; // MIDI controller 1  
                     bLFO3Enabled         = (lfo3_internal_depth > 0 || pDimRgn->LFO3ControlDepth > 0);  
                     break;  
                 case ::gig::lfo3_ctrl_internal_aftertouch:  
                     lfo3_internal_depth  = pDimRgn->LFO3InternalDepth;  
                     pLFO1->ExtController = 0; // TODO: aftertouch not implemented yet  
                     bLFO3Enabled         = (lfo3_internal_depth > 0 /*|| pDimRgn->LFO3ControlDepth > 0*/); // see TODO comment in line above  
                     break;  
                 default:  
                     lfo3_internal_depth  = 0;  
                     pLFO3->ExtController = 0; // no external controller  
                     bLFO3Enabled         = false;  
144              }              }
             if (bLFO3Enabled) pLFO3->trigger(pDimRgn->LFO3Frequency,  
                                              start_level_mid,  
                                              lfo3_internal_depth,  
                                              pDimRgn->LFO3ControlDepth,  
                                              false,  
                                              pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);  
145          }          }
146        }
147    
148        void Voice::ProcessPolyphonicKeyPressureEvent(RTList<Event>::Iterator& itEvent) {
149            // Not used so far
150        }
151    
152          #if CONFIG_FORCE_FILTER      void Voice::ProcessCutoffEvent(RTList<Event>::Iterator& itEvent) {
153          const bool bUseFilter = true;          int ccvalue = itEvent->Param.CC.Value;
154          #else // use filter only if instrument file told so          if (VCFCutoffCtrl.value == ccvalue) return;
155          const bool bUseFilter = pDimRgn->VCFEnabled;          VCFCutoffCtrl.value = ccvalue;
156          #endif // CONFIG_FORCE_FILTER          if (pRegion->VCFCutoffControllerInvert)  ccvalue = 127 - ccvalue;
157          SYNTHESIS_MODE_SET_FILTER(SynthesisMode, bUseFilter);          if (ccvalue < pRegion->VCFVelocityScale) ccvalue = pRegion->VCFVelocityScale;
158          if (bUseFilter) {          float cutoff = CutoffBase * float(ccvalue);
159              #ifdef CONFIG_OVERRIDE_CUTOFF_CTRL          if (cutoff > 127.0f) cutoff = 127.0f;
             VCFCutoffCtrl.controller = CONFIG_OVERRIDE_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 // CONFIG_OVERRIDE_CUTOFF_CTRL  
   
             #ifdef CONFIG_OVERRIDE_RESONANCE_CTRL  
             VCFResonanceCtrl.controller = CONFIG_OVERRIDE_RESONANCE_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 // CONFIG_OVERRIDE_RESONANCE_CTRL  
   
             #ifndef CONFIG_OVERRIDE_FILTER_TYPE  
             finalSynthesisParameters.filterLeft.SetType(pDimRgn->VCFType);  
             finalSynthesisParameters.filterRight.SetType(pDimRgn->VCFType);  
             #else // override filter type  
             FilterLeft.SetType(CONFIG_OVERRIDE_FILTER_TYPE);  
             FilterRight.SetType(CONFIG_OVERRIDE_FILTER_TYPE);  
             #endif // CONFIG_OVERRIDE_FILTER_TYPE  
   
             VCFCutoffCtrl.value    = pEngineChannel->ControllerTable[VCFCutoffCtrl.controller];  
             VCFResonanceCtrl.value = pEngineChannel->ControllerTable[VCFResonanceCtrl.controller];  
   
             // calculate cutoff frequency  
             float cutoff = pDimRgn->GetVelocityCutoff(itNoteOnEvent->Param.Note.Velocity);  
             if (pDimRgn->VCFKeyboardTracking) {  
                 cutoff *= exp((itNoteOnEvent->Param.Note.Key - pDimRgn->VCFKeyboardTrackingBreakpoint) * 0.057762265f); // (ln(2) / 12)  
             }  
             CutoffBase = cutoff;  
   
             int cvalue;  
             if (VCFCutoffCtrl.controller) {  
                 cvalue = pEngineChannel->ControllerTable[VCFCutoffCtrl.controller];  
                 if (pDimRgn->VCFCutoffControllerInvert) cvalue = 127 - cvalue;  
                 // VCFVelocityScale in this case means Minimum cutoff  
                 if (cvalue < pDimRgn->VCFVelocityScale) cvalue = pDimRgn->VCFVelocityScale;  
             }  
             else {  
                 cvalue = pDimRgn->VCFCutoff;  
             }  
             cutoff *= float(cvalue) * 0.00787402f; // (1 / 127)  
             if (cutoff > 1.0) cutoff = 1.0;  
             cutoff = (cutoff < 0.5 ? cutoff * 4826 - 1 : cutoff * 5715 - 449);  
             if (cutoff < 1.0) cutoff = 1.0;  
160    
161              // calculate resonance          VCFCutoffCtrl.fvalue = cutoff; // needed for initialization of fFinalCutoff next time
162              float resonance = (float) (VCFResonanceCtrl.controller ? VCFResonanceCtrl.value : pDimRgn->VCFResonance) * 0.00787f; // 0.0..1.0          fFinalCutoff = cutoff;
163        }
164    
165              VCFCutoffCtrl.fvalue    = cutoff - 1.0;      double Voice::CalculateCrossfadeVolume(uint8_t MIDIKeyVelocity) {
166              VCFResonanceCtrl.fvalue = resonance;          float crossfadeVolume;
167          }          switch (pRegion->AttenuationController.type) {
168          else {              case ::gig::attenuation_ctrl_t::type_channelaftertouch:
169              VCFCutoffCtrl.controller    = 0;                  crossfadeVolume = Engine::CrossfadeCurve[CrossfadeAttenuation(GetGigEngineChannel()->ControllerTable[128])];
170              VCFResonanceCtrl.controller = 0;                  break;
171                case ::gig::attenuation_ctrl_t::type_velocity:
172                    crossfadeVolume = Engine::CrossfadeCurve[CrossfadeAttenuation(MIDIKeyVelocity)];
173                    break;
174                case ::gig::attenuation_ctrl_t::type_controlchange: //FIXME: currently not sample accurate
175                    crossfadeVolume = Engine::CrossfadeCurve[CrossfadeAttenuation(GetGigEngineChannel()->ControllerTable[pRegion->AttenuationController.controller_number])];
176                    break;
177                case ::gig::attenuation_ctrl_t::type_none: // no crossfade defined
178                default:
179                    crossfadeVolume = 1.0f;
180          }          }
181    
182          return 0; // success          return crossfadeVolume;
183      }      }
184    
185      /**      double Voice::GetEG1ControllerValue(uint8_t MIDIKeyVelocity) {
186       *  Renders the audio data for this voice for the current audio fragment.          double eg1controllervalue = 0;
187       *  The sample input data can either come from RAM (cached sample or sample          switch (pRegion->EG1Controller.type) {
188       *  part) or directly from disk. The output signal will be rendered by              case ::gig::eg1_ctrl_t::type_none: // no controller defined
189       *  resampling / interpolation. If this voice is a disk streaming voice and                  eg1controllervalue = 0;
190       *  the voice completely played back the cached RAM part of the sample, it                  break;
191       *  will automatically switch to disk playback for the next RenderAudio()              case ::gig::eg1_ctrl_t::type_channelaftertouch:
192       *  call.                  eg1controllervalue = GetGigEngineChannel()->ControllerTable[128];
193       *                  break;
194       *  @param Samples - number of samples to be rendered in this audio fragment cycle              case ::gig::eg1_ctrl_t::type_velocity:
195       */                  eg1controllervalue = MIDIKeyVelocity;
196      void Voice::Render(uint Samples) {                  break;
197                case ::gig::eg1_ctrl_t::type_controlchange: // MIDI control change controller
198          // select default values for synthesis mode bits                  eg1controllervalue = GetGigEngineChannel()->ControllerTable[pRegion->EG1Controller.controller_number];
199          SYNTHESIS_MODE_SET_LOOP(SynthesisMode, false);                  break;
   
         switch (this->PlaybackState) {  
   
             case playback_state_init:  
                 this->PlaybackState = playback_state_ram; // we always start playback from RAM cache and switch then to disk if needed  
                 // no break - continue with playback_state_ram  
   
             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 (finalSynthesisParameters.dPos > MaxRAMPos) {  
                             dmsg(5,("Voice: switching to disk playback (Pos=%f)\n", finalSynthesisParameters.dPos));  
                             this->PlaybackState = playback_state_disk;  
                         }  
                     } else if (finalSynthesisParameters.dPos >= 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(finalSynthesisParameters.dPos) - MaxRAMPos));  
                         finalSynthesisParameters.dPos -= int(finalSynthesisParameters.dPos);  
                         RealSampleWordsLeftToRead = -1; // -1 means no silence has been added yet  
                     }  
   
                     const int sampleWordsLeftToRead = DiskStreamRef.pStream->GetReadSpace();  
   
                     // add silence sample at the end if we reached the end of the stream (for the interpolator)  
                     if (DiskStreamRef.State == Stream::state_end) {  
                         const int maxSampleWordsPerCycle = (pEngine->MaxSamplesPerCycle << CONFIG_MAX_PITCH) * pSample->Channels + 6; // +6 for the interpolator algorithm  
                         if (sampleWordsLeftToRead <= maxSampleWordsPerCycle) {  
                             // remember how many sample words there are before any silence has been added  
                             if (RealSampleWordsLeftToRead < 0) RealSampleWordsLeftToRead = sampleWordsLeftToRead;  
                             DiskStreamRef.pStream->WriteSilence(maxSampleWordsPerCycle - sampleWordsLeftToRead);  
                         }  
                     }  
   
                     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);  
   
                     const int iPos = (int) finalSynthesisParameters.dPos;  
                     const int readSampleWords = iPos * pSample->Channels; // amount of sample words actually been read  
                     DiskStreamRef.pStream->IncrementReadPos(readSampleWords);  
                     finalSynthesisParameters.dPos -= iPos; // just keep fractional part of playback position  
   
                     // change state of voice to 'end' if we really reached the end of the sample data  
                     if (RealSampleWordsLeftToRead >= 0) {  
                         RealSampleWordsLeftToRead -= readSampleWords;  
                         if (RealSampleWordsLeftToRead <= 0) this->PlaybackState = playback_state_end;  
                     }  
                 }  
                 break;  
   
             case playback_state_end:  
                 std::cerr << "gig::Voice::Render(): entered with playback_state_end, this is a bug!\n" << std::flush;  
                 break;  
         }  
   
         // Reset delay  
         Delay = 0;  
   
         itTriggerEvent = Pool<Event>::Iterator();  
   
         // If sample stream or release stage finished, kill the voice  
         if (PlaybackState == playback_state_end || EG1.getSegmentType() == EGADSR::segment_end) KillImmediately();  
     }  
   
     /**  
      *  Resets voice variables. Should only be called if rendering process is  
      *  suspended / not running.  
      */  
     void Voice::Reset() {  
         finalSynthesisParameters.filterLeft.Reset();  
         finalSynthesisParameters.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 given list of MIDI note on, note off and sustain pedal events  
      * for the given time.  
      *  
      * @param itEvent - iterator pointing to the next event to be processed  
      * @param End     - youngest time stamp where processing should be stopped  
      */  
     void Voice::processTransitionEvents(RTList<Event>::Iterator& itEvent, uint End) {  
         for (; itEvent && itEvent->FragmentPos() <= End; ++itEvent) {  
             if (itEvent->Type == Event::type_release) {  
                 EG1.update(EGADSR::event_release, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);  
                 EG2.update(EGADSR::event_release, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);  
             } else if (itEvent->Type == Event::type_cancel_release) {  
                 EG1.update(EGADSR::event_cancel_release, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);  
                 EG2.update(EGADSR::event_cancel_release, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);  
             }  
200          }          }
201            if (pRegion->EG1ControllerInvert) eg1controllervalue = 127 - eg1controllervalue;
202    
203            return eg1controllervalue;
204      }      }
205    
206      /**      Voice::EGInfo Voice::CalculateEG1ControllerInfluence(double eg1ControllerValue) {
207       * Process given list of MIDI control change and pitch bend events for          EGInfo eg;
208       * the given time.          // (eg1attack is different from the others)
209       *          if (pRegion->EG1Attack < 1e-8 && // attack in gig == 0
210       * @param itEvent - iterator pointing to the next event to be processed              (pRegion->EG1ControllerAttackInfluence == 0 ||
211       * @param End     - youngest time stamp where processing should be stopped               eg1ControllerValue <= 10)) { // strange GSt special case
212       */              eg.Attack = 0; // this will force the attack to be 0 in the call to EG1.trigger
213      void Voice::processCCEvents(RTList<Event>::Iterator& itEvent, uint End) {          } else {
214          for (; itEvent && itEvent->FragmentPos() <= End; ++itEvent) {              eg.Attack  = (pRegion->EG1ControllerAttackInfluence)  ?
215              if (itEvent->Type == Event::type_control_change &&                  1 + 0.031 * (double) (pRegion->EG1ControllerAttackInfluence == 1 ?
216                  itEvent->Param.CC.Controller) { // if (valid) MIDI control change event                                        1 : 1 << pRegion->EG1ControllerAttackInfluence) * eg1ControllerValue : 1.0;
217                  if (itEvent->Param.CC.Controller == VCFCutoffCtrl.controller) {          }
218                      processCutoffEvent(itEvent);          eg.Decay   = (pRegion->EG1ControllerDecayInfluence)   ? 1 + 0.00775 * (double) (1 << pRegion->EG1ControllerDecayInfluence)   * eg1ControllerValue : 1.0;
219                  }          eg.Release = (pRegion->EG1ControllerReleaseInfluence) ? 1 + 0.00775 * (double) (1 << pRegion->EG1ControllerReleaseInfluence) * eg1ControllerValue : 1.0;
220                  if (itEvent->Param.CC.Controller == VCFResonanceCtrl.controller) {  
221                      processResonanceEvent(itEvent);          return eg;
222                  }      }
223                  if (itEvent->Param.CC.Controller == pLFO1->ExtController) {  
224                      pLFO1->update(itEvent->Param.CC.Value);      double Voice::GetEG2ControllerValue(uint8_t MIDIKeyVelocity) {
225                  }          double eg2controllervalue = 0;
226                  if (itEvent->Param.CC.Controller == pLFO2->ExtController) {          switch (pRegion->EG2Controller.type) {
227                      pLFO2->update(itEvent->Param.CC.Value);              case ::gig::eg2_ctrl_t::type_none: // no controller defined
228                  }                  eg2controllervalue = 0;
229                  if (itEvent->Param.CC.Controller == pLFO3->ExtController) {                  break;
230                      pLFO3->update(itEvent->Param.CC.Value);              case ::gig::eg2_ctrl_t::type_channelaftertouch:
231                  }                  eg2controllervalue = GetGigEngineChannel()->ControllerTable[128];
232                  if (pDimRgn->AttenuationController.type == ::gig::attenuation_ctrl_t::type_controlchange &&                  break;
233                      itEvent->Param.CC.Controller == pDimRgn->AttenuationController.controller_number) {              case ::gig::eg2_ctrl_t::type_velocity:
234                      processCrossFadeEvent(itEvent);                  eg2controllervalue = MIDIKeyVelocity;
235                  }                  break;
236              } else if (itEvent->Type == Event::type_pitchbend) { // if pitch bend event              case ::gig::eg2_ctrl_t::type_controlchange: // MIDI control change controller
237                  processPitchEvent(itEvent);                  eg2controllervalue = GetGigEngineChannel()->ControllerTable[pRegion->EG2Controller.controller_number];
238              }                  break;
239          }          }
240      }          if (pRegion->EG2ControllerInvert) eg2controllervalue = 127 - eg2controllervalue;
241    
242      void Voice::processPitchEvent(RTList<Event>::Iterator& itEvent) {          return eg2controllervalue;
         const float pitch = RTMath::CentsToFreqRatio(((double) itEvent->Param.Pitch.Pitch / 8192.0) * 200.0); // +-two semitones = +-200 cents  
         finalSynthesisParameters.fFinalPitch *= pitch;  
         PitchBend = pitch;  
     }  
   
     void Voice::processCrossFadeEvent(RTList<Event>::Iterator& itEvent) {  
         CrossfadeVolume = CrossfadeAttenuation(itEvent->Param.CC.Value);  
         #if CONFIG_PROCESS_MUTED_CHANNELS  
         const float effectiveVolume = CrossfadeVolume * Volume * (pEngineChannel->GetMute() ? 0 : pEngineChannel->GlobalVolume);  
         #else  
         const float effectiveVolume = CrossfadeVolume * Volume * pEngineChannel->GlobalVolume;  
         #endif  
         fFinalVolume = effectiveVolume;  
243      }      }
244    
245      void Voice::processCutoffEvent(RTList<Event>::Iterator& itEvent) {      Voice::EGInfo Voice::CalculateEG2ControllerInfluence(double eg2ControllerValue) {
246          int ccvalue = itEvent->Param.CC.Value;          EGInfo eg;
247          if (VCFCutoffCtrl.value == ccvalue) return;          eg.Attack  = (pRegion->EG2ControllerAttackInfluence)  ? 1 + 0.00775 * (double) (1 << pRegion->EG2ControllerAttackInfluence)  * eg2ControllerValue : 1.0;
248          VCFCutoffCtrl.value == ccvalue;          eg.Decay   = (pRegion->EG2ControllerDecayInfluence)   ? 1 + 0.00775 * (double) (1 << pRegion->EG2ControllerDecayInfluence)   * eg2ControllerValue : 1.0;
249          if (pDimRgn->VCFCutoffControllerInvert)  ccvalue = 127 - ccvalue;          eg.Release = (pRegion->EG2ControllerReleaseInfluence) ? 1 + 0.00775 * (double) (1 << pRegion->EG2ControllerReleaseInfluence) * eg2ControllerValue : 1.0;
         if (ccvalue < pDimRgn->VCFVelocityScale) ccvalue = pDimRgn->VCFVelocityScale;  
         float cutoff = CutoffBase * float(ccvalue) * 0.00787402f; // (1 / 127)  
         if (cutoff > 1.0) cutoff = 1.0;  
         cutoff = (cutoff < 0.5 ? cutoff * 4826 - 1 : cutoff * 5715 - 449);  
         if (cutoff < 1.0) cutoff = 1.0;  
250    
251          VCFCutoffCtrl.fvalue = cutoff - 1.0; // needed for initialization of fFinalCutoff next time          return eg;
         fFinalCutoff = cutoff;  
252      }      }
253    
254      void Voice::processResonanceEvent(RTList<Event>::Iterator& itEvent) {      void Voice::InitLFO1() {
255          // convert absolute controller value to differential          uint16_t lfo1_internal_depth;
256          const int ctrldelta = itEvent->Param.CC.Value - VCFResonanceCtrl.value;          switch (pRegion->LFO1Controller) {
257          VCFResonanceCtrl.value = itEvent->Param.CC.Value;              case ::gig::lfo1_ctrl_internal:
258          const float resonancedelta = (float) ctrldelta * 0.00787f; // 0.0..1.0                  lfo1_internal_depth  = pRegion->LFO1InternalDepth;
259          fFinalResonance += resonancedelta;                  pLFO1->ExtController = 0; // no external controller
260          // needed for initialization of parameter                  bLFO1Enabled         = (lfo1_internal_depth > 0);
261          VCFResonanceCtrl.fvalue = itEvent->Param.CC.Value * 0.00787f;                  break;
262      }              case ::gig::lfo1_ctrl_modwheel:
263                    lfo1_internal_depth  = 0;
264      /**                  pLFO1->ExtController = 1; // MIDI controller 1
265       *  Synthesizes the current audio fragment for this voice.                  bLFO1Enabled         = (pRegion->LFO1ControlDepth > 0);
266       *                  break;
267       *  @param Samples - number of sample points to be rendered in this audio              case ::gig::lfo1_ctrl_breath:
268       *                   fragment cycle                  lfo1_internal_depth  = 0;
269       *  @param pSrc    - pointer to input sample data                  pLFO1->ExtController = 2; // MIDI controller 2
270       *  @param Skip    - number of sample points to skip in output buffer                  bLFO1Enabled         = (pRegion->LFO1ControlDepth > 0);
271       */                  break;
272      void Voice::Synthesize(uint Samples, sample_t* pSrc, uint Skip) {              case ::gig::lfo1_ctrl_internal_modwheel:
273          finalSynthesisParameters.pOutLeft  = &pEngineChannel->pOutputLeft[Skip];                  lfo1_internal_depth  = pRegion->LFO1InternalDepth;
274          finalSynthesisParameters.pOutRight = &pEngineChannel->pOutputRight[Skip];                  pLFO1->ExtController = 1; // MIDI controller 1
275          finalSynthesisParameters.pSrc      = pSrc;                  bLFO1Enabled         = (lfo1_internal_depth > 0 || pRegion->LFO1ControlDepth > 0);
276                    break;
277          RTList<Event>::Iterator itCCEvent = pEngineChannel->pEvents->first();              case ::gig::lfo1_ctrl_internal_breath:
278          RTList<Event>::Iterator itNoteEvent = pEngineChannel->pMIDIKeyInfo[MIDIKey].pEvents->first();                  lfo1_internal_depth  = pRegion->LFO1InternalDepth;
279                    pLFO1->ExtController = 2; // MIDI controller 2
280          if (Skip) { // skip events that happened before this voice was triggered                  bLFO1Enabled         = (lfo1_internal_depth > 0 || pRegion->LFO1ControlDepth > 0);
281              while (itCCEvent && itCCEvent->FragmentPos() <= Skip) ++itCCEvent;                  break;
282              while (itNoteEvent && itNoteEvent->FragmentPos() <= Skip) ++itNoteEvent;              default:
283          }                  lfo1_internal_depth  = 0;
284                    pLFO1->ExtController = 0; // no external controller
285          uint killPos;                  bLFO1Enabled         = false;
286          if (itKillEvent) killPos = RTMath::Min(itKillEvent->FragmentPos(), pEngine->MaxFadeOutPos);          }
287            if (bLFO1Enabled) {
288          uint i = Skip;              pLFO1->trigger(fromGigLfoWave(pRegion->LFO1WaveForm),
289          while (i < Samples) {                             pRegion->LFO1Frequency,
290              int iSubFragmentEnd = RTMath::Min(i + CONFIG_DEFAULT_SUBFRAGMENT_SIZE, Samples);                             pRegion->LFO1Phase,
291                               LFO::start_level_mid, // see https://sourceforge.net/p/linuxsampler/mailman/linuxsampler-devel/thread/2189307.cNP0Xbctxq%40silver/#msg36774029
292              // initialize all final synthesis parameters                             lfo1_internal_depth,
293              finalSynthesisParameters.fFinalPitch = PitchBase * PitchBend;                             pRegion->LFO1ControlDepth,
294              #if CONFIG_PROCESS_MUTED_CHANNELS                             pRegion->LFO1FlipPhase,
295              fFinalVolume = this->Volume * this->CrossfadeVolume * (pEngineChannel->GetMute() ? 0 : pEngineChannel->GlobalVolume);                             pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
296              #else              pLFO1->updateByMIDICtrlValue(pLFO1->ExtController ? GetGigEngineChannel()->ControllerTable[pLFO1->ExtController] : 0);
297              fFinalVolume = this->Volume * this->CrossfadeVolume * pEngineChannel->GlobalVolume;              pLFO1->setScriptDepthFactor(
298              #endif                  pNote->Override.AmpLFODepth.Value,
299              fFinalCutoff    = VCFCutoffCtrl.fvalue;                  pNote->Override.AmpLFODepth.Final
300              fFinalResonance = VCFResonanceCtrl.fvalue;              );
301                if (pNote->Override.AmpLFOFreq.isFinal())
302              // process MIDI control change and pitchbend events for this subfragment                  pLFO1->setScriptFrequencyFinal(
303              processCCEvents(itCCEvent, iSubFragmentEnd);                      pNote->Override.AmpLFOFreq.Value, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE
304                    );
305              // process transition events (note on, note off & sustain pedal)              else
306              processTransitionEvents(itNoteEvent, iSubFragmentEnd);                  pLFO1->setScriptFrequencyFactor(
307                        pNote->Override.AmpLFOFreq.Value, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE
308              // if the voice was killed in this subfragment switch EG1 to fade out stage                  );
309              if (itKillEvent && killPos <= iSubFragmentEnd) {          }
310                  EG1.enterFadeOutStage();      }
                 itKillEvent = Pool<Event>::Iterator();  
             }  
311    
312              // process envelope generators      void Voice::InitLFO2() {
313              switch (EG1.getSegmentType()) {          uint16_t lfo2_internal_depth;
314                  case EGADSR::segment_lin:          switch (pRegion->LFO2Controller) {
315                      fFinalVolume *= EG1.processLin();              case ::gig::lfo2_ctrl_internal:
316                      break;                  lfo2_internal_depth  = pRegion->LFO2InternalDepth;
317                  case EGADSR::segment_exp:                  pLFO2->ExtController = 0; // no external controller
318                      fFinalVolume *= EG1.processExp();                  bLFO2Enabled         = (lfo2_internal_depth > 0);
319                      break;                  break;
320                  case EGADSR::segment_end:              case ::gig::lfo2_ctrl_modwheel:
321                      fFinalVolume *= EG1.getLevel();                  lfo2_internal_depth  = 0;
322                      break; // noop                  pLFO2->ExtController = 1; // MIDI controller 1
323              }                  bLFO2Enabled         = (pRegion->LFO2ControlDepth > 0);
324              switch (EG2.getSegmentType()) {                  break;
325                  case EGADSR::segment_lin:              case ::gig::lfo2_ctrl_foot:
326                      fFinalCutoff *= EG2.processLin();                  lfo2_internal_depth  = 0;
327                      break;                  pLFO2->ExtController = 4; // MIDI controller 4
328                  case EGADSR::segment_exp:                  bLFO2Enabled         = (pRegion->LFO2ControlDepth > 0);
329                      fFinalCutoff *= EG2.processExp();                  break;
330                      break;              case ::gig::lfo2_ctrl_internal_modwheel:
331                  case EGADSR::segment_end:                  lfo2_internal_depth  = pRegion->LFO2InternalDepth;
332                      fFinalCutoff *= EG2.getLevel();                  pLFO2->ExtController = 1; // MIDI controller 1
333                      break; // noop                  bLFO2Enabled         = (lfo2_internal_depth > 0 || pRegion->LFO2ControlDepth > 0);
334              }                  break;
335              if (EG3.active()) finalSynthesisParameters.fFinalPitch *= EG3.render();              case ::gig::lfo2_ctrl_internal_foot:
336                    lfo2_internal_depth  = pRegion->LFO2InternalDepth;
337                    pLFO2->ExtController = 4; // MIDI controller 4
338                    bLFO2Enabled         = (lfo2_internal_depth > 0 || pRegion->LFO2ControlDepth > 0);
339                    break;
340                default:
341                    lfo2_internal_depth  = 0;
342                    pLFO2->ExtController = 0; // no external controller
343                    bLFO2Enabled         = false;
344            }
345            if (bLFO2Enabled) {
346                pLFO2->trigger(fromGigLfoWave(pRegion->LFO2WaveForm),
347                               pRegion->LFO2Frequency,
348                               pRegion->LFO2Phase,
349                               LFO::start_level_mid, // see https://sourceforge.net/p/linuxsampler/mailman/linuxsampler-devel/thread/2189307.cNP0Xbctxq%40silver/#msg36774029
350                               lfo2_internal_depth,
351                               pRegion->LFO2ControlDepth,
352                               pRegion->LFO2FlipPhase,
353                               pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
354                pLFO2->updateByMIDICtrlValue(pLFO2->ExtController ? GetGigEngineChannel()->ControllerTable[pLFO2->ExtController] : 0);
355                pLFO2->setScriptDepthFactor(
356                    pNote->Override.CutoffLFODepth.Value,
357                    pNote->Override.CutoffLFODepth.Final
358                );
359                if (pNote->Override.CutoffLFOFreq.isFinal())
360                    pLFO2->setScriptFrequencyFinal(pNote->Override.CutoffLFOFreq.Value, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
361                else
362                    pLFO2->setScriptFrequencyFactor(pNote->Override.CutoffLFOFreq.Value, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
363            }
364        }
365    
366              // process low frequency oscillators      void Voice::InitLFO3() {
367              if (bLFO1Enabled) fFinalVolume *= pLFO1->render();          uint16_t lfo3_internal_depth;
368              if (bLFO2Enabled) fFinalCutoff *= pLFO2->render();          switch (pRegion->LFO3Controller) {
369              if (bLFO3Enabled) finalSynthesisParameters.fFinalPitch *= RTMath::CentsToFreqRatio(pLFO3->render());              case ::gig::lfo3_ctrl_internal:
370                    lfo3_internal_depth  = pRegion->LFO3InternalDepth;
371              // if filter enabled then update filter coefficients                  pLFO3->ExtController = 0; // no external controller
372              if (SYNTHESIS_MODE_GET_FILTER(SynthesisMode)) {                  bLFO3Enabled         = (lfo3_internal_depth > 0);
373                  finalSynthesisParameters.filterLeft.SetParameters(fFinalCutoff + 1.0, fFinalResonance, pEngine->SampleRate);                  break;
374                  finalSynthesisParameters.filterRight.SetParameters(fFinalCutoff + 1.0, fFinalResonance, pEngine->SampleRate);              case ::gig::lfo3_ctrl_modwheel:
375              }                  lfo3_internal_depth  = 0;
376                    pLFO3->ExtController = 1; // MIDI controller 1
377                    bLFO3Enabled         = (pRegion->LFO3ControlDepth > 0);
378                    break;
379                case ::gig::lfo3_ctrl_aftertouch:
380                    lfo3_internal_depth  = 0;
381                    pLFO3->ExtController = CTRL_TABLE_IDX_AFTERTOUCH;
382                    bLFO3Enabled         = true;
383                    break;
384                case ::gig::lfo3_ctrl_internal_modwheel:
385                    lfo3_internal_depth  = pRegion->LFO3InternalDepth;
386                    pLFO3->ExtController = 1; // MIDI controller 1
387                    bLFO3Enabled         = (lfo3_internal_depth > 0 || pRegion->LFO3ControlDepth > 0);
388                    break;
389                case ::gig::lfo3_ctrl_internal_aftertouch:
390                    lfo3_internal_depth  = pRegion->LFO3InternalDepth;
391                    pLFO3->ExtController = CTRL_TABLE_IDX_AFTERTOUCH;
392                    bLFO3Enabled         = (lfo3_internal_depth > 0 || pRegion->LFO3ControlDepth > 0);
393                    break;
394                default:
395                    lfo3_internal_depth  = 0;
396                    pLFO3->ExtController = 0; // no external controller
397                    bLFO3Enabled         = false;
398            }
399            if (bLFO3Enabled) {
400                pLFO3->trigger(fromGigLfoWave(pRegion->LFO3WaveForm),
401                               pRegion->LFO3Frequency,
402                               pRegion->LFO3Phase,
403                               LFO::start_level_max, // see https://sourceforge.net/p/linuxsampler/mailman/linuxsampler-devel/thread/2189307.cNP0Xbctxq%40silver/#msg36774029
404                               lfo3_internal_depth,
405                               pRegion->LFO3ControlDepth,
406                               pRegion->LFO3FlipPhase,
407                               pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
408                pLFO3->updateByMIDICtrlValue(pLFO3->ExtController ? GetGigEngineChannel()->ControllerTable[pLFO3->ExtController] : 0);
409                pLFO3->setScriptDepthFactor(
410                    pNote->Override.PitchLFODepth.Value,
411                    pNote->Override.PitchLFODepth.Final
412                );
413                if (pNote->Override.PitchLFOFreq.isFinal())
414                    pLFO3->setScriptFrequencyFinal(pNote->Override.PitchLFOFreq.Value, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
415                else
416                    pLFO3->setScriptFrequencyFactor(pNote->Override.PitchLFOFreq.Value, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
417            }
418        }
419    
420              // do we need resampling?      float Voice::CalculateCutoffBase(uint8_t MIDIKeyVelocity) {
421              const float __PLUS_ONE_CENT  = 1.000577789506554859250142541782224725466f;          float cutoff = pRegion->GetVelocityCutoff(MIDIKeyVelocity);
422              const float __MINUS_ONE_CENT = 0.9994225441413807496009516495583113737666f;          if (pRegion->VCFKeyboardTracking) {
423              const bool bResamplingRequired = !(finalSynthesisParameters.fFinalPitch <= __PLUS_ONE_CENT &&              cutoff *= RTMath::CentsToFreqRatioUnlimited((MIDIKey() - pRegion->VCFKeyboardTrackingBreakpoint) * 100);
424                                                 finalSynthesisParameters.fFinalPitch >= __MINUS_ONE_CENT);          }
425              SYNTHESIS_MODE_SET_INTERPOLATE(SynthesisMode, bResamplingRequired);          return cutoff;
426        }
427              // prepare final synthesis parameters structure  
428              finalSynthesisParameters.fFinalVolumeLeft  = fFinalVolume * PanLeft;      float Voice::CalculateFinalCutoff(float cutoffBase) {
429              finalSynthesisParameters.fFinalVolumeRight = fFinalVolume * PanRight;          int cvalue;
430              finalSynthesisParameters.uiToGo            = iSubFragmentEnd - i;          if (VCFCutoffCtrl.controller) {
431                cvalue = GetGigEngineChannel()->ControllerTable[VCFCutoffCtrl.controller];
432              // render audio for one subfragment              if (pRegion->VCFCutoffControllerInvert) cvalue = 127 - cvalue;
433              RunSynthesisFunction(SynthesisMode, &finalSynthesisParameters, &loop);              // VCFVelocityScale in this case means Minimum cutoff
434                if (cvalue < pRegion->VCFVelocityScale) cvalue = pRegion->VCFVelocityScale;
435              const double newPos = Pos + (iSubFragmentEnd - i) * finalSynthesisParameters.fFinalPitch;          }
436            else {
437              // increment envelopes' positions              cvalue = pRegion->VCFCutoff;
438              if (EG1.active()) {          }
439            float fco = cutoffBase * float(cvalue);
440                  // if sample has a loop and loop start has been reached in this subfragment, send a special event to EG1 to let it finish the attack hold stage          if (fco > 127.0f) fco = 127.0f;
                 if (pSample->Loops && Pos <= pSample->LoopStart && pSample->LoopStart < newPos) {  
                     EG1.update(EGADSR::event_hold_end, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);  
                 }  
441    
442                  EG1.increment(1);          return fco;
443                  if (!EG1.toStageEndLeft()) EG1.update(EGADSR::event_stage_end, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);      }
             }  
             if (EG2.active()) {  
                 EG2.increment(1);  
                 if (!EG2.toStageEndLeft()) EG2.update(EGADSR::event_stage_end, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);  
             }  
             EG3.increment(1);  
             if (!EG3.toEndLeft()) EG3.update(); // neutralize envelope coefficient if end reached  
444    
445              Pos = newPos;      uint8_t Voice::GetVCFCutoffCtrl() {
446              i = iSubFragmentEnd;          uint8_t ctrl;
447            switch (pRegion->VCFCutoffController) {
448                case ::gig::vcf_cutoff_ctrl_modwheel:
449                    ctrl = 1;
450                    break;
451                case ::gig::vcf_cutoff_ctrl_effect1:
452                    ctrl = 12;
453                    break;
454                case ::gig::vcf_cutoff_ctrl_effect2:
455                    ctrl = 13;
456                    break;
457                case ::gig::vcf_cutoff_ctrl_breath:
458                    ctrl = 2;
459                    break;
460                case ::gig::vcf_cutoff_ctrl_foot:
461                    ctrl = 4;
462                    break;
463                case ::gig::vcf_cutoff_ctrl_sustainpedal:
464                    ctrl = 64;
465                    break;
466                case ::gig::vcf_cutoff_ctrl_softpedal:
467                    ctrl = 67;
468                    break;
469                case ::gig::vcf_cutoff_ctrl_genpurpose7:
470                    ctrl = 82;
471                    break;
472                case ::gig::vcf_cutoff_ctrl_genpurpose8:
473                    ctrl = 83;
474                    break;
475                case ::gig::vcf_cutoff_ctrl_aftertouch:
476                    ctrl = CTRL_TABLE_IDX_AFTERTOUCH;
477                    break;
478                case ::gig::vcf_cutoff_ctrl_none:
479                default:
480                    ctrl = 0;
481                    break;
482          }          }
483    
484            return ctrl;
485      }      }
486    
487      /** @brief Update current portamento position.      uint8_t Voice::GetVCFResonanceCtrl() {
488       *          uint8_t ctrl;
489       * Will be called when portamento mode is enabled to get the final          switch (pRegion->VCFResonanceController) {
490       * portamento position of this active voice from where the next voice(s)              case ::gig::vcf_res_ctrl_genpurpose3:
491       * might continue to slide on.                  ctrl = 18;
492       *                  break;
493       * @param itNoteOffEvent - event which causes this voice to die soon              case ::gig::vcf_res_ctrl_genpurpose4:
494       */                  ctrl = 19;
495      void Voice::UpdatePortamentoPos(Pool<Event>::Iterator& itNoteOffEvent) {                  break;
496          const float fFinalEG3Level = EG3.level(itNoteOffEvent->FragmentPos());              case ::gig::vcf_res_ctrl_genpurpose5:
497          pEngineChannel->PortamentoPos = (float) MIDIKey + RTMath::FreqRatioToCents(fFinalEG3Level) * 0.01f;                  ctrl = 80;
498      }                  break;
499                case ::gig::vcf_res_ctrl_genpurpose6:
500      /**                  ctrl = 81;
501       *  Immediately kill the voice. This method should not be used to kill                  break;
502       *  a normal, active voice, because it doesn't take care of things like              case ::gig::vcf_res_ctrl_none:
503       *  fading down the volume level to avoid clicks and regular processing              default:
504       *  until the kill event actually occured!                  ctrl = 0;
505       *          }
506       *  @see Kill()  
507       */          return ctrl;
508      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) {  
         #if CONFIG_DEVMODE  
         if (!itKillEvent) dmsg(1,("gig::Voice::Kill(): ERROR, !itKillEvent !!!\n"));  
         if (itKillEvent && !itKillEvent.isValid()) dmsg(1,("gig::Voice::Kill(): ERROR, itKillEvent invalid !!!\n"));  
         #endif // CONFIG_DEVMODE  
509    
510          if (itTriggerEvent && itKillEvent->FragmentPos() <= itTriggerEvent->FragmentPos()) return;      void Voice::TriggerEG1(const EGInfo& egInfo, double velrelease, double velocityAttenuation, uint sampleRate, uint8_t velocity) {
511          this->itKillEvent = itKillEvent;          EG1.setStateOptions(
512                pRegion->EG1Options.AttackCancel,
513                pRegion->EG1Options.AttackHoldCancel,
514                pRegion->EG1Options.Decay1Cancel,
515                pRegion->EG1Options.Decay2Cancel,
516                pRegion->EG1Options.ReleaseCancel
517            );
518            EG1.trigger(pRegion->EG1PreAttack,
519                        (pNote && pNote->Override.Attack.isFinal()) ?
520                            pNote->Override.Attack.Value :
521                            RTMath::Max(pRegion->EG1Attack, 0.0316) * egInfo.Attack,
522                        pRegion->EG1Hold,
523                        (pNote && pNote->Override.Decay.isFinal()) ?
524                            pNote->Override.Decay.Value :
525                            pRegion->EG1Decay1 * egInfo.Decay * velrelease,
526                        (pNote && pNote->Override.Decay.isFinal()) ?
527                            pNote->Override.Decay.Value :
528                            pRegion->EG1Decay2 * egInfo.Decay * velrelease,
529                        pRegion->EG1InfiniteSustain,
530                        (pNote && pNote->Override.Sustain.Final) ?
531                            uint(pNote->Override.Sustain.Value * 1000.f) :
532                            pRegion->EG1Sustain * (pNote ? pNote->Override.Sustain.Value : 1.f),
533                        (pNote && pNote->Override.Release.isFinal()) ?
534                            pNote->Override.Release.Value :
535                            RTMath::Max(pRegion->EG1Release * velrelease, 0.014) * egInfo.Release,
536                        velocityAttenuation,
537                        sampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
538        }
539    
540        void Voice::TriggerEG2(const EGInfo& egInfo, double velrelease, double velocityAttenuation, uint sampleRate, uint8_t velocity) {
541            EG2.setStateOptions(
542                pRegion->EG2Options.AttackCancel,
543                pRegion->EG2Options.AttackHoldCancel,
544                pRegion->EG2Options.Decay1Cancel,
545                pRegion->EG2Options.Decay2Cancel,
546                pRegion->EG2Options.ReleaseCancel
547            );
548            EG2.trigger(uint(RgnInfo.EG2PreAttack),
549                        (pNote && pNote->Override.CutoffAttack.isFinal()) ?
550                            pNote->Override.CutoffAttack.Value :
551                            RgnInfo.EG2Attack * egInfo.Attack,
552                        false,
553                        (pNote && pNote->Override.CutoffDecay.isFinal()) ?
554                            pNote->Override.CutoffDecay.Value :
555                            RgnInfo.EG2Decay1 * egInfo.Decay * velrelease,
556                        (pNote && pNote->Override.CutoffDecay.isFinal()) ?
557                            pNote->Override.CutoffDecay.Value :
558                            RgnInfo.EG2Decay2 * egInfo.Decay * velrelease,
559                        RgnInfo.EG2InfiniteSustain,
560                        (pNote && pNote->Override.CutoffSustain.Final) ?
561                            uint(pNote->Override.CutoffSustain.Value * 1000.f) :
562                            uint(RgnInfo.EG2Sustain),
563                        (pNote && pNote->Override.CutoffRelease.isFinal()) ?
564                            pNote->Override.CutoffRelease.Value :
565                            RgnInfo.EG2Release * egInfo.Release * velrelease,
566                        velocityAttenuation,
567                        sampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
568        }
569    
570        void Voice::ProcessGroupEvent(RTList<Event>::Iterator& itEvent) {
571            dmsg(4,("Voice %p processGroupEvents event type=%d", (void*)this, itEvent->Type));
572    
573            // TODO: The SustainPedal condition could be wrong, maybe the
574            // check should be if this Voice is in release stage or is a
575            // release sample instead. Need to test this in GSt.
576            // -- Andreas
577            //
578            // Commented sustain pedal check out. I don't think voices of the same
579            // note should be stopped at all, because it doesn't sound naturally
580            // with a drumkit.
581            // -- Christian, 2013-01-08
582            if (itEvent->Param.Note.Key != HostKey() /*||
583                !GetGigEngineChannel()->SustainPedal*/) {
584                dmsg(4,("Voice %p - kill", (void*)this));
585    
586                // kill the voice fast
587                pEG1->enterFadeOutStage();
588            }
589        }
590    
591        void Voice::CalculateFadeOutCoeff(float FadeOutTime, float SampleRate) {
592            EG1.CalculateFadeOutCoeff(FadeOutTime, SampleRate);
593        }
594    
595        int Voice::CalculatePan(uint8_t pan) {
596            int p;
597            // Gst behaviour: -64 and 63 are special cases
598            if (RgnInfo.Pan == -64)     p = pan * 2 - 127;
599            else if (RgnInfo.Pan == 63) p = pan * 2;
600            else                        p = pan + RgnInfo.Pan;
601    
602            if (p < 0) return 0;
603            if (p > 127) return 127;
604            return p;
605        }
606    
607        release_trigger_t Voice::GetReleaseTriggerFlags() {
608            release_trigger_t flags =
609                (pRegion->NoNoteOffReleaseTrigger) ?
610                    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
611            switch (pRegion->SustainReleaseTrigger) {
612                case ::gig::sust_rel_trg_none:
613                    break;
614                case ::gig::sust_rel_trg_maxvelocity:
615                    flags |= release_trigger_sustain_maxvelocity;
616                    break;
617                case ::gig::sust_rel_trg_keyvelocity:
618                    flags |= release_trigger_sustain_keyvelocity;
619                    break;
620            }
621            return flags;
622      }      }
623    
624  }} // namespace LinuxSampler::gig  }} // namespace LinuxSampler::gig
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