/[svn]/linuxsampler/trunk/src/engines/gig/Voice.cpp
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revision 841 by persson, Sat Mar 4 16:23:53 2006 UTC revision 3628 by schoenebeck, Sat Oct 5 14:37:31 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(int64_t(::gig::lfo_wave_sine) == int64_t(LFO::wave_sine),
38      float Voice::CalculateFilterCutoffCoeff() {                    "enum LFO::wave_t not equally value mapped to libgig's enum ::gig::lfo_wave_t");
39          return log(CONFIG_FILTER_CUTOFF_MAX / CONFIG_FILTER_CUTOFF_MIN);      static_assert(int64_t(::gig::lfo_wave_triangle) == int64_t(LFO::wave_triangle),
40                      "enum LFO::wave_t not equally value mapped to libgig's enum ::gig::lfo_wave_t");
41        static_assert(int64_t(::gig::lfo_wave_saw) == int64_t(LFO::wave_saw),
42                      "enum LFO::wave_t not equally value mapped to libgig's enum ::gig::lfo_wave_t");
43        static_assert(int64_t(::gig::lfo_wave_square) == int64_t(LFO::wave_square),
44                      "enum LFO::wave_t not equally value mapped to libgig's enum ::gig::lfo_wave_t");
45    
46        // converts ::gig::lfo_wave_t (libgig) -> LFO::wave_t (LinuxSampler)
47        inline LFO::wave_t fromGigLfoWave(::gig::lfo_wave_t wave) {
48            // simply assuming equally mapped enums on both sides
49            return static_cast<LFO::wave_t>(wave);
50      }      }
51    
52      Voice::Voice() {      Voice::Voice() {
53          pEngine     = NULL;          pEngine = NULL;
54          pDiskThread = NULL;          pEG1 = &EG1;
55          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();  
56      }      }
57    
58      Voice::~Voice() {      Voice::~Voice() {
         if (pLFO1) delete pLFO1;  
         if (pLFO2) delete pLFO2;  
         if (pLFO3) delete pLFO3;  
59      }      }
60    
61      void Voice::SetEngine(Engine* pEngine) {      EngineChannel* Voice::GetGigEngineChannel() {
62          this->pEngine     = pEngine;          return static_cast<EngineChannel*>(pEngineChannel);
63          this->pDiskThread = pEngine->pDiskThread;      }
64    
65        void Voice::SetEngine(LinuxSampler::Engine* pEngine) {
66            Engine* engine = static_cast<Engine*>(pEngine);
67            this->pEngine     = engine;
68            this->pDiskThread = engine->pDiskThread;
69          dmsg(6,("Voice::SetEngine()\n"));          dmsg(6,("Voice::SetEngine()\n"));
70      }      }
71    
72      /**      Voice::SampleInfo Voice::GetSampleInfo() {
73       *  Initializes and triggers the voice, a disk stream will be launched if          SampleInfo si;
74       *  needed.          si.SampleRate       = pSample->SamplesPerSecond;
75       *          si.ChannelCount     = pSample->Channels;
76       *  @param pEngineChannel - engine channel on which this voice was ordered          si.FrameSize        = pSample->FrameSize;
77       *  @param itNoteOnEvent  - event that caused triggering of this voice          si.BitDepth         = pSample->BitDepth;
78       *  @param PitchBend      - MIDI detune factor (-8192 ... +8191)          si.TotalFrameCount  = (uint)pSample->SamplesTotal;
      *  @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);  
   
         float 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;  
         }  
79    
80          // select channel mode (mono or stereo)          si.HasLoops       = pRegion->SampleLoops;
81          SYNTHESIS_MODE_SET_CHANNELS(SynthesisMode, pSample->Channels == 2);          si.LoopStart      = (si.HasLoops) ? pRegion->pSampleLoops[0].LoopStart  : 0;
82            si.LoopLength     = (si.HasLoops) ? pRegion->pSampleLoops[0].LoopLength : 0;
83            si.LoopPlayCount  = pSample->LoopPlayCount;
84            si.Unpitched      = !pRegion->PitchTrack;
85    
86          // get starting crossfade volume level          return si;
87          float crossfadeVolume;      }
         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 = Engine::CrossfadeCurve[CrossfadeAttenuation(itNoteOnEvent->Param.Note.Velocity)];  
                 break;  
             case ::gig::attenuation_ctrl_t::type_controlchange: //FIXME: currently not sample accurate  
                 crossfadeVolume = Engine::CrossfadeCurve[CrossfadeAttenuation(pEngineChannel->ControllerTable[pDimRgn->AttenuationController.controller_number])];  
                 break;  
             case ::gig::attenuation_ctrl_t::type_none: // no crossfade defined  
             default:  
                 crossfadeVolume = 1.0f;  
         }  
88    
89          VolumeLeft  = volume * Engine::PanCurve[64 - pDimRgn->Pan];      Voice::RegionInfo Voice::GetRegionInfo() {
90          VolumeRight = volume * Engine::PanCurve[64 + pDimRgn->Pan];          RegionInfo ri;
91            ri.UnityNote = pRegion->UnityNote;
92            ri.FineTune  = pRegion->FineTune;
93            ri.Pan       = pRegion->Pan;
94            ri.SampleStartOffset = pRegion->SampleStartOffset;
95    
96          float subfragmentRate = pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE;          ri.EG2PreAttack        = pRegion->EG2PreAttack;
97          CrossfadeSmoother.trigger(crossfadeVolume, subfragmentRate);          ri.EG2Attack           = pRegion->EG2Attack;
98          VolumeSmoother.trigger(pEngineChannel->GlobalVolume, subfragmentRate);          ri.EG2Decay1           = pRegion->EG2Decay1;
99          PanLeftSmoother.trigger(pEngineChannel->GlobalPanLeft, subfragmentRate);          ri.EG2Decay2           = pRegion->EG2Decay2;
100          PanRightSmoother.trigger(pEngineChannel->GlobalPanRight, subfragmentRate);          ri.EG2Sustain          = pRegion->EG2Sustain;
101            ri.EG2InfiniteSustain  = pRegion->EG2InfiniteSustain;
102          finalSynthesisParameters.dPos = pDimRgn->SampleStartOffset; // offset where we should start playback of sample (0 - 2000 sample points)          ri.EG2Release          = pRegion->EG2Release;
         Pos = pDimRgn->SampleStartOffset;  
   
         // Check if the sample needs disk streaming or is too short for that  
         long cachedsamples = pSample->GetCache().Size / pSample->FrameSize;  
         DiskVoice          = cachedsamples < pSample->SamplesTotal;  
   
         if (DiskVoice) { // voice to be streamed from disk  
             MaxRAMPos = cachedsamples - (pEngine->MaxSamplesPerCycle << 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)  
   
             // check if there's a loop defined which completely fits into the cached (RAM) part of the sample  
             RAMLoop = (pSample->Loops && pSample->LoopEnd <= MaxRAMPos);  
   
             if (pDiskThread->OrderNewStream(&DiskStreamRef, pSample, MaxRAMPos, !RAMLoop) < 0) {  
                 dmsg(1,("Disk stream order failed!\n"));  
                 KillImmediately();  
                 return -1;  
             }  
             dmsg(4,("Disk voice launched (cached samples: %d, total Samples: %d, MaxRAMPos: %d, RAMLooping: %s)\n", cachedsamples, pSample->SamplesTotal, MaxRAMPos, (RAMLoop) ? "yes" : "no"));  
         }  
         else { // RAM only voice  
             MaxRAMPos = cachedsamples;  
             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;  
103    
104              // calculate influence of EG1 controller on EG1's parameters          ri.EG3Attack     = pRegion->EG3Attack;
105              // (eg1attack is different from the others)          ri.EG3Depth      = pRegion->EG3Depth;
106              double eg1attack  = (pDimRgn->EG1ControllerAttackInfluence)  ?          ri.VCFEnabled    = pRegion->VCFEnabled;
107                  1 + 0.031 * (double) (pDimRgn->EG1ControllerAttackInfluence == 1 ?          ri.VCFType       = Filter::vcf_type_t(pRegion->VCFType);
108                                        1 : 1 << pDimRgn->EG1ControllerAttackInfluence) * eg1controllervalue : 1.0;          ri.VCFResonance  = pRegion->VCFResonance;
             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);  
         }  
   
 #ifdef CONFIG_INTERPOLATE_VOLUME  
         // setup initial volume in synthesis parameters  
 #ifdef CONFIG_PROCESS_MUTED_CHANNELS  
         if (pEngineChannel->GetMute()) {  
             finalSynthesisParameters.fFinalVolumeLeft  = 0;  
             finalSynthesisParameters.fFinalVolumeRight = 0;  
         }  
         else  
 #else  
         {  
             float finalVolume = pEngineChannel->GlobalVolume * crossfadeVolume * EG1.getLevel();  
   
             finalSynthesisParameters.fFinalVolumeLeft  = finalVolume * VolumeLeft  * pEngineChannel->GlobalPanLeft;  
             finalSynthesisParameters.fFinalVolumeRight = finalVolume * VolumeRight * pEngineChannel->GlobalPanRight;  
         }  
 #endif  
 #endif  
   
         // setup EG 2 (VCF Cutoff EG)  
         {  
             // get current value of EG2 controller  
             double eg2controllervalue;  
             switch (pDimRgn->EG2Controller.type) {  
                 case ::gig::eg2_ctrl_t::type_none: // no controller defined  
                     eg2controllervalue = 0;  
                     break;  
                 case ::gig::eg2_ctrl_t::type_channelaftertouch:  
                     eg2controllervalue = 0; // TODO: aftertouch not yet supported  
                     break;  
                 case ::gig::eg2_ctrl_t::type_velocity:  
                     eg2controllervalue = itNoteOnEvent->Param.Note.Velocity;  
                     break;  
                 case ::gig::eg2_ctrl_t::type_controlchange: // MIDI control change controller  
                     eg2controllervalue = pEngineChannel->ControllerTable[pDimRgn->EG2Controller.controller_number];  
                     break;  
             }  
             if (pDimRgn->EG2ControllerInvert) eg2controllervalue = 127 - eg2controllervalue;  
109    
110              // calculate influence of EG2 controller on EG2's parameters          ri.ReleaseTriggerDecay = 0.01053 * (256 >> pRegion->ReleaseTriggerDecay);
             double eg2attack  = (pDimRgn->EG2ControllerAttackInfluence)  ? 1 + 0.00775 * (double) (1 << pDimRgn->EG2ControllerAttackInfluence)  * eg2controllervalue : 1.0;  
             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);  
                 pLFO1->update(pLFO1->ExtController ? pEngineChannel->ControllerTable[pLFO1->ExtController] : 0);  
             }  
         }  
111    
112            return ri;
113        }
114    
115          // setup LFO 2 (VCF Cutoff LFO)      Voice::InstrumentInfo Voice::GetInstrumentInfo() {
116          {          InstrumentInfo ii;
117              uint16_t lfo2_internal_depth;          ii.FineTune = GetGigEngineChannel()->pInstrument->FineTune;
118              switch (pDimRgn->LFO2Controller) {          ii.PitchbendRange = GetGigEngineChannel()->pInstrument->PitchbendRange;
                 case ::gig::lfo2_ctrl_internal:  
                     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;  
             }  
             if (bLFO2Enabled) {  
                 pLFO2->trigger(pDimRgn->LFO2Frequency,  
                                start_level_max,  
                                lfo2_internal_depth,  
                                pDimRgn->LFO2ControlDepth,  
                                pDimRgn->LFO2FlipPhase,  
                                pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);  
                 pLFO2->update(pLFO2->ExtController ? pEngineChannel->ControllerTable[pLFO2->ExtController] : 0);  
             }  
         }  
119    
120            return ii;
121        }
122    
123          // setup LFO 3 (VCO LFO)      double Voice::GetSampleAttenuation() {
124          {          return pRegion->SampleAttenuation;
125              uint16_t lfo3_internal_depth;      }
             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;  
             }  
             if (bLFO3Enabled) {  
                 pLFO3->trigger(pDimRgn->LFO3Frequency,  
                                start_level_mid,  
                                lfo3_internal_depth,  
                                pDimRgn->LFO3ControlDepth,  
                                false,  
                                pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);  
                 pLFO3->update(pLFO3->ExtController ? pEngineChannel->ControllerTable[pLFO3->ExtController] : 0);  
             }  
         }  
126    
127        double Voice::GetVelocityAttenuation(uint8_t MIDIKeyVelocity) {
128            return pRegion->GetVelocityAttenuation(MIDIKeyVelocity);
129        }
130    
131          #if CONFIG_FORCE_FILTER      double Voice::GetVelocityRelease(uint8_t MIDIKeyVelocity) {
132          const bool bUseFilter = true;          return pRegion->GetVelocityRelease(MIDIKeyVelocity);
133          #else // use filter only if instrument file told so      }
         const bool bUseFilter = pDimRgn->VCFEnabled;  
         #endif // CONFIG_FORCE_FILTER  
         SYNTHESIS_MODE_SET_FILTER(SynthesisMode, bUseFilter);  
         if (bUseFilter) {  
             #ifdef CONFIG_OVERRIDE_CUTOFF_CTRL  
             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  
134    
135              #ifdef CONFIG_OVERRIDE_RESONANCE_CTRL      void Voice::ProcessCCEvent(RTList<Event>::Iterator& itEvent) {
136              VCFResonanceCtrl.controller = CONFIG_OVERRIDE_RESONANCE_CTRL;          if (itEvent->Type == Event::type_control_change && itEvent->Param.CC.Controller) { // if (valid) MIDI control change event
137              #else // use the one defined in the instrument file              if (pRegion->AttenuationController.type == ::gig::attenuation_ctrl_t::type_controlchange &&
138              switch (pDimRgn->VCFResonanceController) {                  itEvent->Param.CC.Controller == pRegion->AttenuationController.controller_number) {
139                  case ::gig::vcf_res_ctrl_genpurpose3:                  CrossfadeSmoother.update(AbstractEngine::CrossfadeCurve[CrossfadeAttenuation(itEvent->Param.CC.Value)]);
                     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;  
140              }              }
141              #endif // CONFIG_OVERRIDE_RESONANCE_CTRL          }
142        }
143    
144              #ifndef CONFIG_OVERRIDE_FILTER_TYPE      void Voice::ProcessChannelPressureEvent(RTList<Event>::Iterator& itEvent) {
145              finalSynthesisParameters.filterLeft.SetType(pDimRgn->VCFType);          if (itEvent->Type == Event::type_channel_pressure) { // if (valid) MIDI channel pressure (aftertouch) event
146              finalSynthesisParameters.filterRight.SetType(pDimRgn->VCFType);              if (pRegion->AttenuationController.type == ::gig::attenuation_ctrl_t::type_channelaftertouch) {
147              #else // override filter type                  CrossfadeSmoother.update(AbstractEngine::CrossfadeCurve[CrossfadeAttenuation(itEvent->Param.ChannelPressure.Value)]);
             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)  
148              }              }
149              CutoffBase = cutoff;          }
150        }
151    
152              int cvalue;      void Voice::ProcessPolyphonicKeyPressureEvent(RTList<Event>::Iterator& itEvent) {
153              if (VCFCutoffCtrl.controller) {          // Not used so far
154                  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;  
155    
156              // calculate resonance      void Voice::ProcessCutoffEvent(RTList<Event>::Iterator& itEvent) {
157              float resonance = (float) (VCFResonanceCtrl.controller ? VCFResonanceCtrl.value : pDimRgn->VCFResonance) * 0.00787f; // 0.0..1.0          int ccvalue = itEvent->Param.CC.Value;
158            if (VCFCutoffCtrl.value == ccvalue) return;
159            VCFCutoffCtrl.value = ccvalue;
160            if (pRegion->VCFCutoffControllerInvert)  ccvalue = 127 - ccvalue;
161            if (ccvalue < pRegion->VCFVelocityScale) ccvalue = pRegion->VCFVelocityScale;
162            float cutoff = CutoffBase * float(ccvalue);
163            if (cutoff > 127.0f) cutoff = 127.0f;
164    
165              VCFCutoffCtrl.fvalue    = cutoff - 1.0;          VCFCutoffCtrl.fvalue = cutoff; // needed for initialization of fFinalCutoff next time
166              VCFResonanceCtrl.fvalue = resonance;          fFinalCutoff = cutoff;
167          }      }
168          else {  
169              VCFCutoffCtrl.controller    = 0;      double Voice::CalculateCrossfadeVolume(uint8_t MIDIKeyVelocity) {
170              VCFResonanceCtrl.controller = 0;          float crossfadeVolume;
171            switch (pRegion->AttenuationController.type) {
172                case ::gig::attenuation_ctrl_t::type_channelaftertouch:
173                    crossfadeVolume = Engine::CrossfadeCurve[CrossfadeAttenuation(GetGigEngineChannel()->ControllerTable[128])];
174                    break;
175                case ::gig::attenuation_ctrl_t::type_velocity:
176                    crossfadeVolume = Engine::CrossfadeCurve[CrossfadeAttenuation(MIDIKeyVelocity)];
177                    break;
178                case ::gig::attenuation_ctrl_t::type_controlchange: //FIXME: currently not sample accurate
179                    crossfadeVolume = Engine::CrossfadeCurve[CrossfadeAttenuation(GetGigEngineChannel()->ControllerTable[pRegion->AttenuationController.controller_number])];
180                    break;
181                case ::gig::attenuation_ctrl_t::type_none: // no crossfade defined
182                default:
183                    crossfadeVolume = 1.0f;
184          }          }
185    
186          return 0; // success          return crossfadeVolume;
187      }      }
188    
189      /**      double Voice::GetEG1ControllerValue(uint8_t MIDIKeyVelocity) {
190       *  Renders the audio data for this voice for the current audio fragment.          double eg1controllervalue = 0;
191       *  The sample input data can either come from RAM (cached sample or sample          switch (pRegion->EG1Controller.type) {
192       *  part) or directly from disk. The output signal will be rendered by              case ::gig::eg1_ctrl_t::type_none: // no controller defined
193       *  resampling / interpolation. If this voice is a disk streaming voice and                  eg1controllervalue = 0;
194       *  the voice completely played back the cached RAM part of the sample, it                  break;
195       *  will automatically switch to disk playback for the next RenderAudio()              case ::gig::eg1_ctrl_t::type_channelaftertouch:
196       *  call.                  eg1controllervalue = GetGigEngineChannel()->ControllerTable[128];
197       *                  break;
198       *  @param Samples - number of samples to be rendered in this audio fragment cycle              case ::gig::eg1_ctrl_t::type_velocity:
199       */                  eg1controllervalue = MIDIKeyVelocity;
200      void Voice::Render(uint Samples) {                  break;
201                case ::gig::eg1_ctrl_t::type_controlchange: // MIDI control change controller
202          // select default values for synthesis mode bits                  eg1controllervalue = GetGigEngineChannel()->ControllerTable[pRegion->EG1Controller.controller_number];
203          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);  
             }  
204          }          }
205            if (pRegion->EG1ControllerInvert) eg1controllervalue = 127 - eg1controllervalue;
206    
207            return eg1controllervalue;
208      }      }
209    
210      /**      Voice::EGInfo Voice::CalculateEG1ControllerInfluence(double eg1ControllerValue) {
211       * Process given list of MIDI control change and pitch bend events for          EGInfo eg;
212       * the given time.          // (eg1attack is different from the others)
213       *          if (pRegion->EG1Attack < 1e-8 && // attack in gig == 0
214       * @param itEvent - iterator pointing to the next event to be processed              (pRegion->EG1ControllerAttackInfluence == 0 ||
215       * @param End     - youngest time stamp where processing should be stopped               eg1ControllerValue <= 10)) { // strange GSt special case
216       */              eg.Attack = 0; // this will force the attack to be 0 in the call to EG1.trigger
217      void Voice::processCCEvents(RTList<Event>::Iterator& itEvent, uint End) {          } else {
218          for (; itEvent && itEvent->FragmentPos() <= End; ++itEvent) {              eg.Attack  = (pRegion->EG1ControllerAttackInfluence)  ?
219              if (itEvent->Type == Event::type_control_change &&                  1 + 0.031 * (double) (pRegion->EG1ControllerAttackInfluence == 1 ?
220                  itEvent->Param.CC.Controller) { // if (valid) MIDI control change event                                        1 : 1 << pRegion->EG1ControllerAttackInfluence) * eg1ControllerValue : 1.0;
221                  if (itEvent->Param.CC.Controller == VCFCutoffCtrl.controller) {          }
222                      processCutoffEvent(itEvent);          eg.Decay   = (pRegion->EG1ControllerDecayInfluence)   ? 1 + 0.00775 * (double) (1 << pRegion->EG1ControllerDecayInfluence)   * eg1ControllerValue : 1.0;
223                  }          eg.Release = (pRegion->EG1ControllerReleaseInfluence) ? 1 + 0.00775 * (double) (1 << pRegion->EG1ControllerReleaseInfluence) * eg1ControllerValue : 1.0;
224                  if (itEvent->Param.CC.Controller == VCFResonanceCtrl.controller) {  
225                      processResonanceEvent(itEvent);          return eg;
226                  }      }
227                  if (itEvent->Param.CC.Controller == pLFO1->ExtController) {  
228                      pLFO1->update(itEvent->Param.CC.Value);      double Voice::GetEG2ControllerValue(uint8_t MIDIKeyVelocity) {
229                  }          double eg2controllervalue = 0;
230                  if (itEvent->Param.CC.Controller == pLFO2->ExtController) {          switch (pRegion->EG2Controller.type) {
231                      pLFO2->update(itEvent->Param.CC.Value);              case ::gig::eg2_ctrl_t::type_none: // no controller defined
232                  }                  eg2controllervalue = 0;
233                  if (itEvent->Param.CC.Controller == pLFO3->ExtController) {                  break;
234                      pLFO3->update(itEvent->Param.CC.Value);              case ::gig::eg2_ctrl_t::type_channelaftertouch:
235                  }                  eg2controllervalue = GetGigEngineChannel()->ControllerTable[128];
236                  if (pDimRgn->AttenuationController.type == ::gig::attenuation_ctrl_t::type_controlchange &&                  break;
237                      itEvent->Param.CC.Controller == pDimRgn->AttenuationController.controller_number) {              case ::gig::eg2_ctrl_t::type_velocity:
238                      CrossfadeSmoother.update(Engine::CrossfadeCurve[CrossfadeAttenuation(itEvent->Param.CC.Value)]);                  eg2controllervalue = MIDIKeyVelocity;
239                  }                  break;
240                  if (itEvent->Param.CC.Controller == 7) { // volume              case ::gig::eg2_ctrl_t::type_controlchange: // MIDI control change controller
241                      VolumeSmoother.update(Engine::VolumeCurve[itEvent->Param.CC.Value] * CONFIG_GLOBAL_ATTENUATION);                  eg2controllervalue = GetGigEngineChannel()->ControllerTable[pRegion->EG2Controller.controller_number];
242                  } else if (itEvent->Param.CC.Controller == 10) { // panpot                  break;
                     PanLeftSmoother.update(Engine::PanCurve[128 - itEvent->Param.CC.Value]);  
                     PanRightSmoother.update(Engine::PanCurve[itEvent->Param.CC.Value]);  
                 }  
             } else if (itEvent->Type == Event::type_pitchbend) { // if pitch bend event  
                 processPitchEvent(itEvent);  
             }  
243          }          }
244      }          if (pRegion->EG2ControllerInvert) eg2controllervalue = 127 - eg2controllervalue;
245    
246      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;  
247      }      }
248    
249      void Voice::processCutoffEvent(RTList<Event>::Iterator& itEvent) {      Voice::EGInfo Voice::CalculateEG2ControllerInfluence(double eg2ControllerValue) {
250          int ccvalue = itEvent->Param.CC.Value;          EGInfo eg;
251          if (VCFCutoffCtrl.value == ccvalue) return;          eg.Attack  = (pRegion->EG2ControllerAttackInfluence)  ? 1 + 0.00775 * (double) (1 << pRegion->EG2ControllerAttackInfluence)  * eg2ControllerValue : 1.0;
252          VCFCutoffCtrl.value == ccvalue;          eg.Decay   = (pRegion->EG2ControllerDecayInfluence)   ? 1 + 0.00775 * (double) (1 << pRegion->EG2ControllerDecayInfluence)   * eg2ControllerValue : 1.0;
253          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;  
254    
255          VCFCutoffCtrl.fvalue = cutoff - 1.0; // needed for initialization of fFinalCutoff next time          return eg;
         fFinalCutoff = cutoff;  
256      }      }
257    
258      void Voice::processResonanceEvent(RTList<Event>::Iterator& itEvent) {      void Voice::InitLFO1() {
259          // convert absolute controller value to differential          uint16_t lfo1_internal_depth;
260          const int ctrldelta = itEvent->Param.CC.Value - VCFResonanceCtrl.value;          switch (pRegion->LFO1Controller) {
261          VCFResonanceCtrl.value = itEvent->Param.CC.Value;              case ::gig::lfo1_ctrl_internal:
262          const float resonancedelta = (float) ctrldelta * 0.00787f; // 0.0..1.0                  lfo1_internal_depth  = pRegion->LFO1InternalDepth;
263          fFinalResonance += resonancedelta;                  pLFO1->ExtController = 0; // no external controller
264          // needed for initialization of parameter                  bLFO1Enabled         = (lfo1_internal_depth > 0);
265          VCFResonanceCtrl.fvalue = itEvent->Param.CC.Value * 0.00787f;                  break;
266      }              case ::gig::lfo1_ctrl_modwheel:
267                    lfo1_internal_depth  = 0;
268      /**                  pLFO1->ExtController = 1; // MIDI controller 1
269       *  Synthesizes the current audio fragment for this voice.                  bLFO1Enabled         = (pRegion->LFO1ControlDepth > 0);
270       *                  break;
271       *  @param Samples - number of sample points to be rendered in this audio              case ::gig::lfo1_ctrl_breath:
272       *                   fragment cycle                  lfo1_internal_depth  = 0;
273       *  @param pSrc    - pointer to input sample data                  pLFO1->ExtController = 2; // MIDI controller 2
274       *  @param Skip    - number of sample points to skip in output buffer                  bLFO1Enabled         = (pRegion->LFO1ControlDepth > 0);
275       */                  break;
276      void Voice::Synthesize(uint Samples, sample_t* pSrc, uint Skip) {              case ::gig::lfo1_ctrl_internal_modwheel:
277          finalSynthesisParameters.pOutLeft  = &pEngineChannel->pOutputLeft[Skip];                  lfo1_internal_depth  = pRegion->LFO1InternalDepth;
278          finalSynthesisParameters.pOutRight = &pEngineChannel->pOutputRight[Skip];                  pLFO1->ExtController = 1; // MIDI controller 1
279          finalSynthesisParameters.pSrc      = pSrc;                  bLFO1Enabled         = (lfo1_internal_depth > 0 || pRegion->LFO1ControlDepth > 0);
280                    break;
281          RTList<Event>::Iterator itCCEvent = pEngineChannel->pEvents->first();              case ::gig::lfo1_ctrl_internal_breath:
282          RTList<Event>::Iterator itNoteEvent = pEngineChannel->pMIDIKeyInfo[MIDIKey].pEvents->first();                  lfo1_internal_depth  = pRegion->LFO1InternalDepth;
283                    pLFO1->ExtController = 2; // MIDI controller 2
284          if (Skip) { // skip events that happened before this voice was triggered                  bLFO1Enabled         = (lfo1_internal_depth > 0 || pRegion->LFO1ControlDepth > 0);
285              while (itCCEvent && itCCEvent->FragmentPos() <= Skip) ++itCCEvent;                  break;
286              while (itNoteEvent && itNoteEvent->FragmentPos() <= Skip) ++itNoteEvent;              default:
287          }                  lfo1_internal_depth  = 0;
288                    pLFO1->ExtController = 0; // no external controller
289          uint killPos;                  bLFO1Enabled         = false;
290          if (itKillEvent) killPos = RTMath::Min(itKillEvent->FragmentPos(), pEngine->MaxFadeOutPos);          }
291            if (bLFO1Enabled) {
292          uint i = Skip;              pLFO1->trigger(fromGigLfoWave(pRegion->LFO1WaveForm),
293          while (i < Samples) {                             pRegion->LFO1Frequency,
294              int iSubFragmentEnd = RTMath::Min(i + CONFIG_DEFAULT_SUBFRAGMENT_SIZE, Samples);                             pRegion->LFO1Phase,
295                               LFO::start_level_mid, // see https://sourceforge.net/p/linuxsampler/mailman/linuxsampler-devel/thread/2189307.cNP0Xbctxq%40silver/#msg36774029
296              // initialize all final synthesis parameters                             lfo1_internal_depth,
297              finalSynthesisParameters.fFinalPitch = PitchBase * PitchBend;                             pRegion->LFO1ControlDepth,
298              fFinalCutoff    = VCFCutoffCtrl.fvalue;                             pRegion->LFO1FlipPhase,
299              fFinalResonance = VCFResonanceCtrl.fvalue;                             pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
300                pLFO1->updateByMIDICtrlValue(pLFO1->ExtController ? GetGigEngineChannel()->ControllerTable[pLFO1->ExtController] : 0);
301              // process MIDI control change and pitchbend events for this subfragment              pLFO1->setScriptDepthFactor(
302              processCCEvents(itCCEvent, iSubFragmentEnd);                  pNote->Override.AmpLFODepth.Value,
303                    pNote->Override.AmpLFODepth.Final
304              float fFinalVolume = VolumeSmoother.render() * CrossfadeSmoother.render();              );
305  #ifdef CONFIG_PROCESS_MUTED_CHANNELS              if (pNote->Override.AmpLFOFreq.isFinal())
306              if (pEngineChannel->GetMute()) fFinalVolume = 0;                  pLFO1->setScriptFrequencyFinal(
307  #endif                      pNote->Override.AmpLFOFreq.Value, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE
308                    );
309              // process transition events (note on, note off & sustain pedal)              else
310              processTransitionEvents(itNoteEvent, iSubFragmentEnd);                  pLFO1->setScriptFrequencyFactor(
311                        pNote->Override.AmpLFOFreq.Value, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE
312              // if the voice was killed in this subfragment switch EG1 to fade out stage                  );
313              if (itKillEvent && killPos <= iSubFragmentEnd) {          }
314                  EG1.enterFadeOutStage();      }
                 itKillEvent = Pool<Event>::Iterator();  
             }  
315    
316              // process envelope generators      void Voice::InitLFO2() {
317              switch (EG1.getSegmentType()) {          uint16_t lfo2_internal_depth;
318                  case EGADSR::segment_lin:          switch (pRegion->LFO2Controller) {
319                      fFinalVolume *= EG1.processLin();              case ::gig::lfo2_ctrl_internal:
320                      break;                  lfo2_internal_depth  = pRegion->LFO2InternalDepth;
321                  case EGADSR::segment_exp:                  pLFO2->ExtController = 0; // no external controller
322                      fFinalVolume *= EG1.processExp();                  bLFO2Enabled         = (lfo2_internal_depth > 0);
323                      break;                  break;
324                  case EGADSR::segment_end:              case ::gig::lfo2_ctrl_modwheel:
325                      fFinalVolume *= EG1.getLevel();                  lfo2_internal_depth  = 0;
326                      break; // noop                  pLFO2->ExtController = 1; // MIDI controller 1
327              }                  bLFO2Enabled         = (pRegion->LFO2ControlDepth > 0);
328              switch (EG2.getSegmentType()) {                  break;
329                  case EGADSR::segment_lin:              case ::gig::lfo2_ctrl_foot:
330                      fFinalCutoff *= EG2.processLin();                  lfo2_internal_depth  = 0;
331                      break;                  pLFO2->ExtController = 4; // MIDI controller 4
332                  case EGADSR::segment_exp:                  bLFO2Enabled         = (pRegion->LFO2ControlDepth > 0);
333                      fFinalCutoff *= EG2.processExp();                  break;
334                      break;              case ::gig::lfo2_ctrl_internal_modwheel:
335                  case EGADSR::segment_end:                  lfo2_internal_depth  = pRegion->LFO2InternalDepth;
336                      fFinalCutoff *= EG2.getLevel();                  pLFO2->ExtController = 1; // MIDI controller 1
337                      break; // noop                  bLFO2Enabled         = (lfo2_internal_depth > 0 || pRegion->LFO2ControlDepth > 0);
338              }                  break;
339              if (EG3.active()) finalSynthesisParameters.fFinalPitch *= EG3.render();              case ::gig::lfo2_ctrl_internal_foot:
340                    lfo2_internal_depth  = pRegion->LFO2InternalDepth;
341                    pLFO2->ExtController = 4; // MIDI controller 4
342                    bLFO2Enabled         = (lfo2_internal_depth > 0 || pRegion->LFO2ControlDepth > 0);
343                    break;
344                default:
345                    lfo2_internal_depth  = 0;
346                    pLFO2->ExtController = 0; // no external controller
347                    bLFO2Enabled         = false;
348            }
349            if (bLFO2Enabled) {
350                pLFO2->trigger(fromGigLfoWave(pRegion->LFO2WaveForm),
351                               pRegion->LFO2Frequency,
352                               pRegion->LFO2Phase,
353                               LFO::start_level_mid, // see https://sourceforge.net/p/linuxsampler/mailman/linuxsampler-devel/thread/2189307.cNP0Xbctxq%40silver/#msg36774029
354                               lfo2_internal_depth,
355                               pRegion->LFO2ControlDepth,
356                               pRegion->LFO2FlipPhase,
357                               pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
358                pLFO2->updateByMIDICtrlValue(pLFO2->ExtController ? GetGigEngineChannel()->ControllerTable[pLFO2->ExtController] : 0);
359                pLFO2->setScriptDepthFactor(
360                    pNote->Override.CutoffLFODepth.Value,
361                    pNote->Override.CutoffLFODepth.Final
362                );
363                if (pNote->Override.CutoffLFOFreq.isFinal())
364                    pLFO2->setScriptFrequencyFinal(pNote->Override.CutoffLFOFreq.Value, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
365                else
366                    pLFO2->setScriptFrequencyFactor(pNote->Override.CutoffLFOFreq.Value, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
367            }
368        }
369    
370              // process low frequency oscillators      void Voice::InitLFO3() {
371              if (bLFO1Enabled) fFinalVolume *= pLFO1->render();          uint16_t lfo3_internal_depth;
372              if (bLFO2Enabled) fFinalCutoff *= pLFO2->render();          switch (pRegion->LFO3Controller) {
373              if (bLFO3Enabled) finalSynthesisParameters.fFinalPitch *= RTMath::CentsToFreqRatio(pLFO3->render());              case ::gig::lfo3_ctrl_internal:
374                    lfo3_internal_depth  = pRegion->LFO3InternalDepth;
375              // if filter enabled then update filter coefficients                  pLFO3->ExtController = 0; // no external controller
376              if (SYNTHESIS_MODE_GET_FILTER(SynthesisMode)) {                  bLFO3Enabled         = (lfo3_internal_depth > 0);
377                  finalSynthesisParameters.filterLeft.SetParameters(fFinalCutoff + 1.0, fFinalResonance, pEngine->SampleRate);                  break;
378                  finalSynthesisParameters.filterRight.SetParameters(fFinalCutoff + 1.0, fFinalResonance, pEngine->SampleRate);              case ::gig::lfo3_ctrl_modwheel:
379              }                  lfo3_internal_depth  = 0;
380                    pLFO3->ExtController = 1; // MIDI controller 1
381                    bLFO3Enabled         = (pRegion->LFO3ControlDepth > 0);
382                    break;
383                case ::gig::lfo3_ctrl_aftertouch:
384                    lfo3_internal_depth  = 0;
385                    pLFO3->ExtController = CTRL_TABLE_IDX_AFTERTOUCH;
386                    bLFO3Enabled         = true;
387                    break;
388                case ::gig::lfo3_ctrl_internal_modwheel:
389                    lfo3_internal_depth  = pRegion->LFO3InternalDepth;
390                    pLFO3->ExtController = 1; // MIDI controller 1
391                    bLFO3Enabled         = (lfo3_internal_depth > 0 || pRegion->LFO3ControlDepth > 0);
392                    break;
393                case ::gig::lfo3_ctrl_internal_aftertouch:
394                    lfo3_internal_depth  = pRegion->LFO3InternalDepth;
395                    pLFO3->ExtController = CTRL_TABLE_IDX_AFTERTOUCH;
396                    bLFO3Enabled         = (lfo3_internal_depth > 0 || pRegion->LFO3ControlDepth > 0);
397                    break;
398                default:
399                    lfo3_internal_depth  = 0;
400                    pLFO3->ExtController = 0; // no external controller
401                    bLFO3Enabled         = false;
402            }
403            if (bLFO3Enabled) {
404                pLFO3->trigger(fromGigLfoWave(pRegion->LFO3WaveForm),
405                               pRegion->LFO3Frequency,
406                               pRegion->LFO3Phase,
407                               LFO::start_level_max, // see https://sourceforge.net/p/linuxsampler/mailman/linuxsampler-devel/thread/2189307.cNP0Xbctxq%40silver/#msg36774029
408                               lfo3_internal_depth,
409                               pRegion->LFO3ControlDepth,
410                               pRegion->LFO3FlipPhase,
411                               pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
412                pLFO3->updateByMIDICtrlValue(pLFO3->ExtController ? GetGigEngineChannel()->ControllerTable[pLFO3->ExtController] : 0);
413                pLFO3->setScriptDepthFactor(
414                    pNote->Override.PitchLFODepth.Value,
415                    pNote->Override.PitchLFODepth.Final
416                );
417                if (pNote->Override.PitchLFOFreq.isFinal())
418                    pLFO3->setScriptFrequencyFinal(pNote->Override.PitchLFOFreq.Value, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
419                else
420                    pLFO3->setScriptFrequencyFactor(pNote->Override.PitchLFOFreq.Value, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
421            }
422        }
423    
424              // do we need resampling?      float Voice::CalculateCutoffBase(uint8_t MIDIKeyVelocity) {
425              const float __PLUS_ONE_CENT  = 1.000577789506554859250142541782224725466f;          float cutoff = pRegion->GetVelocityCutoff(MIDIKeyVelocity);
426              const float __MINUS_ONE_CENT = 0.9994225441413807496009516495583113737666f;          if (pRegion->VCFKeyboardTracking) {
427              const bool bResamplingRequired = !(finalSynthesisParameters.fFinalPitch <= __PLUS_ONE_CENT &&              cutoff *= RTMath::CentsToFreqRatioUnlimited((MIDIKey() - pRegion->VCFKeyboardTrackingBreakpoint) * 100);
428                                                 finalSynthesisParameters.fFinalPitch >= __MINUS_ONE_CENT);          }
429              SYNTHESIS_MODE_SET_INTERPOLATE(SynthesisMode, bResamplingRequired);          return cutoff;
430        }
431              // prepare final synthesis parameters structure  
432              finalSynthesisParameters.uiToGo            = iSubFragmentEnd - i;      float Voice::CalculateFinalCutoff(float cutoffBase) {
433  #ifdef CONFIG_INTERPOLATE_VOLUME          int cvalue;
434              finalSynthesisParameters.fFinalVolumeDeltaLeft  =          if (VCFCutoffCtrl.controller) {
435                  (fFinalVolume * VolumeLeft  * PanLeftSmoother.render() -              cvalue = GetGigEngineChannel()->ControllerTable[VCFCutoffCtrl.controller];
436                   finalSynthesisParameters.fFinalVolumeLeft) / finalSynthesisParameters.uiToGo;              if (pRegion->VCFCutoffControllerInvert) cvalue = 127 - cvalue;
437              finalSynthesisParameters.fFinalVolumeDeltaRight =              // VCFVelocityScale in this case means Minimum cutoff
438                  (fFinalVolume * VolumeRight * PanRightSmoother.render() -              if (cvalue < pRegion->VCFVelocityScale) cvalue = pRegion->VCFVelocityScale;
439                   finalSynthesisParameters.fFinalVolumeRight) / finalSynthesisParameters.uiToGo;          }
440  #else          else {
441              finalSynthesisParameters.fFinalVolumeLeft  =              cvalue = pRegion->VCFCutoff;
442                  fFinalVolume * VolumeLeft  * PanLeftSmoother.render();          }
443              finalSynthesisParameters.fFinalVolumeRight =          float fco = cutoffBase * float(cvalue);
444                  fFinalVolume * VolumeRight * PanRightSmoother.render();          if (fco > 127.0f) fco = 127.0f;
 #endif  
             // render audio for one subfragment  
             RunSynthesisFunction(SynthesisMode, &finalSynthesisParameters, &loop);  
   
             // stop the rendering if volume EG is finished  
             if (EG1.getSegmentType() == EGADSR::segment_end) break;  
   
             const double newPos = Pos + (iSubFragmentEnd - i) * finalSynthesisParameters.fFinalPitch;  
   
             // increment envelopes' positions  
             if (EG1.active()) {  
   
                 // 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 (pSample->Loops && Pos <= pSample->LoopStart && pSample->LoopStart < newPos) {  
                     EG1.update(EGADSR::event_hold_end, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);  
                 }  
445    
446                  EG1.increment(1);          return fco;
447                  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  
448    
449              Pos = newPos;      uint8_t Voice::GetVCFCutoffCtrl() {
450              i = iSubFragmentEnd;          uint8_t ctrl;
451            switch (pRegion->VCFCutoffController) {
452                case ::gig::vcf_cutoff_ctrl_modwheel:
453                    ctrl = 1;
454                    break;
455                case ::gig::vcf_cutoff_ctrl_effect1:
456                    ctrl = 12;
457                    break;
458                case ::gig::vcf_cutoff_ctrl_effect2:
459                    ctrl = 13;
460                    break;
461                case ::gig::vcf_cutoff_ctrl_breath:
462                    ctrl = 2;
463                    break;
464                case ::gig::vcf_cutoff_ctrl_foot:
465                    ctrl = 4;
466                    break;
467                case ::gig::vcf_cutoff_ctrl_sustainpedal:
468                    ctrl = 64;
469                    break;
470                case ::gig::vcf_cutoff_ctrl_softpedal:
471                    ctrl = 67;
472                    break;
473                case ::gig::vcf_cutoff_ctrl_genpurpose7:
474                    ctrl = 82;
475                    break;
476                case ::gig::vcf_cutoff_ctrl_genpurpose8:
477                    ctrl = 83;
478                    break;
479                case ::gig::vcf_cutoff_ctrl_aftertouch:
480                    ctrl = CTRL_TABLE_IDX_AFTERTOUCH;
481                    break;
482                case ::gig::vcf_cutoff_ctrl_none:
483                default:
484                    ctrl = 0;
485                    break;
486          }          }
487    
488            return ctrl;
489      }      }
490    
491      /** @brief Update current portamento position.      uint8_t Voice::GetVCFResonanceCtrl() {
492       *          uint8_t ctrl;
493       * Will be called when portamento mode is enabled to get the final          switch (pRegion->VCFResonanceController) {
494       * portamento position of this active voice from where the next voice(s)              case ::gig::vcf_res_ctrl_genpurpose3:
495       * might continue to slide on.                  ctrl = 18;
496       *                  break;
497       * @param itNoteOffEvent - event which causes this voice to die soon              case ::gig::vcf_res_ctrl_genpurpose4:
498       */                  ctrl = 19;
499      void Voice::UpdatePortamentoPos(Pool<Event>::Iterator& itNoteOffEvent) {                  break;
500          const float fFinalEG3Level = EG3.level(itNoteOffEvent->FragmentPos());              case ::gig::vcf_res_ctrl_genpurpose5:
501          pEngineChannel->PortamentoPos = (float) MIDIKey + RTMath::FreqRatioToCents(fFinalEG3Level) * 0.01f;                  ctrl = 80;
502      }                  break;
503                case ::gig::vcf_res_ctrl_genpurpose6:
504      /**                  ctrl = 81;
505       *  Immediately kill the voice. This method should not be used to kill                  break;
506       *  a normal, active voice, because it doesn't take care of things like              case ::gig::vcf_res_ctrl_none:
507       *  fading down the volume level to avoid clicks and regular processing              default:
508       *  until the kill event actually occured!                  ctrl = 0;
509       *          }
510       *  @see Kill()  
511       */          return ctrl;
512      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  
513    
514          if (itTriggerEvent && itKillEvent->FragmentPos() <= itTriggerEvent->FragmentPos()) return;      void Voice::TriggerEG1(const EGInfo& egInfo, double velrelease, double velocityAttenuation, uint sampleRate, uint8_t velocity) {
515          this->itKillEvent = itKillEvent;          EG1.setStateOptions(
516                pRegion->EG1Options.AttackCancel,
517                pRegion->EG1Options.AttackHoldCancel,
518                pRegion->EG1Options.Decay1Cancel,
519                pRegion->EG1Options.Decay2Cancel,
520                pRegion->EG1Options.ReleaseCancel
521            );
522            EG1.trigger(pRegion->EG1PreAttack,
523                        (pNote && pNote->Override.Attack.isFinal()) ?
524                            pNote->Override.Attack.Value :
525                            RTMath::Max(pRegion->EG1Attack, 0.0316) * egInfo.Attack,
526                        pRegion->EG1Hold,
527                        (pNote && pNote->Override.Decay.isFinal()) ?
528                            pNote->Override.Decay.Value :
529                            pRegion->EG1Decay1 * egInfo.Decay * velrelease,
530                        (pNote && pNote->Override.Decay.isFinal()) ?
531                            pNote->Override.Decay.Value :
532                            pRegion->EG1Decay2 * egInfo.Decay * velrelease,
533                        pRegion->EG1InfiniteSustain,
534                        (pNote && pNote->Override.Sustain.Final) ?
535                            uint(pNote->Override.Sustain.Value * 1000.f) :
536                            pRegion->EG1Sustain * (pNote ? pNote->Override.Sustain.Value : 1.f),
537                        (pNote && pNote->Override.Release.isFinal()) ?
538                            pNote->Override.Release.Value :
539                            RTMath::Max(pRegion->EG1Release * velrelease, 0.014) * egInfo.Release,
540                        velocityAttenuation,
541                        sampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
542        }
543    
544        void Voice::TriggerEG2(const EGInfo& egInfo, double velrelease, double velocityAttenuation, uint sampleRate, uint8_t velocity) {
545            EG2.setStateOptions(
546                pRegion->EG2Options.AttackCancel,
547                pRegion->EG2Options.AttackHoldCancel,
548                pRegion->EG2Options.Decay1Cancel,
549                pRegion->EG2Options.Decay2Cancel,
550                pRegion->EG2Options.ReleaseCancel
551            );
552            EG2.trigger(uint(RgnInfo.EG2PreAttack),
553                        (pNote && pNote->Override.CutoffAttack.isFinal()) ?
554                            pNote->Override.CutoffAttack.Value :
555                            RgnInfo.EG2Attack * egInfo.Attack,
556                        false,
557                        (pNote && pNote->Override.CutoffDecay.isFinal()) ?
558                            pNote->Override.CutoffDecay.Value :
559                            RgnInfo.EG2Decay1 * egInfo.Decay * velrelease,
560                        (pNote && pNote->Override.CutoffDecay.isFinal()) ?
561                            pNote->Override.CutoffDecay.Value :
562                            RgnInfo.EG2Decay2 * egInfo.Decay * velrelease,
563                        RgnInfo.EG2InfiniteSustain,
564                        (pNote && pNote->Override.CutoffSustain.Final) ?
565                            uint(pNote->Override.CutoffSustain.Value * 1000.f) :
566                            uint(RgnInfo.EG2Sustain),
567                        (pNote && pNote->Override.CutoffRelease.isFinal()) ?
568                            pNote->Override.CutoffRelease.Value :
569                            RgnInfo.EG2Release * egInfo.Release * velrelease,
570                        velocityAttenuation,
571                        sampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
572        }
573    
574        void Voice::ProcessGroupEvent(RTList<Event>::Iterator& itEvent) {
575            dmsg(4,("Voice %p processGroupEvents event type=%d", (void*)this, itEvent->Type));
576    
577            // TODO: The SustainPedal condition could be wrong, maybe the
578            // check should be if this Voice is in release stage or is a
579            // release sample instead. Need to test this in GSt.
580            // -- Andreas
581            //
582            // Commented sustain pedal check out. I don't think voices of the same
583            // note should be stopped at all, because it doesn't sound naturally
584            // with a drumkit.
585            // -- Christian, 2013-01-08
586            if (itEvent->Param.Note.Key != HostKey() /*||
587                !GetGigEngineChannel()->SustainPedal*/) {
588                dmsg(4,("Voice %p - kill", (void*)this));
589    
590                // kill the voice fast
591                pEG1->enterFadeOutStage();
592            }
593        }
594    
595        void Voice::CalculateFadeOutCoeff(float FadeOutTime, float SampleRate) {
596            EG1.CalculateFadeOutCoeff(FadeOutTime, SampleRate);
597        }
598    
599        int Voice::CalculatePan(uint8_t pan) {
600            int p;
601            // Gst behaviour: -64 and 63 are special cases
602            if (RgnInfo.Pan == -64)     p = pan * 2 - 127;
603            else if (RgnInfo.Pan == 63) p = pan * 2;
604            else                        p = pan + RgnInfo.Pan;
605    
606            if (p < 0) return 0;
607            if (p > 127) return 127;
608            return p;
609        }
610    
611        release_trigger_t Voice::GetReleaseTriggerFlags() {
612            release_trigger_t flags =
613                (pRegion->NoNoteOffReleaseTrigger) ?
614                    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
615            switch (pRegion->SustainReleaseTrigger) {
616                case ::gig::sust_rel_trg_none:
617                    break;
618                case ::gig::sust_rel_trg_maxvelocity:
619                    flags |= release_trigger_sustain_maxvelocity;
620                    break;
621                case ::gig::sust_rel_trg_keyvelocity:
622                    flags |= release_trigger_sustain_keyvelocity;
623                    break;
624            }
625            return flags;
626      }      }
627    
628  }} // namespace LinuxSampler::gig  }} // namespace LinuxSampler::gig
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