/[svn]/linuxsampler/trunk/src/engines/gig/Voice.cpp
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revision 770 by schoenebeck, Sun Sep 11 15:56:29 2005 UTC revision 3655 by schoenebeck, Fri Dec 13 17:14:48 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 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        // Returns true for GigaStudio's original filter types (which are resembled
53        // by LS very accurately with same frequency response and patch settings
54        // behaviour), false for our own LS specific filter implementation types.
55        constexpr bool isGStFilterType(::gig::vcf_type_t type) {
56            return type == ::gig::vcf_type_lowpass ||
57                   type == ::gig::vcf_type_lowpassturbo ||
58                   type == ::gig::vcf_type_bandpass ||
59                   type == ::gig::vcf_type_highpass ||
60                   type == ::gig::vcf_type_bandreject;
61      }      }
62    
63      Voice::Voice() {      Voice::Voice() {
64          pEngine     = NULL;          pEngine = NULL;
65          pDiskThread = NULL;          pEG1 = &EG1;
66          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();  
67      }      }
68    
69      Voice::~Voice() {      Voice::~Voice() {
         if (pLFO1) delete pLFO1;  
         if (pLFO2) delete pLFO2;  
         if (pLFO3) delete pLFO3;  
70      }      }
71    
72      void Voice::SetEngine(Engine* pEngine) {      EngineChannel* Voice::GetGigEngineChannel() {
73          this->pEngine     = pEngine;          return static_cast<EngineChannel*>(pEngineChannel);
74          this->pDiskThread = pEngine->pDiskThread;      }
75    
76        void Voice::SetEngine(LinuxSampler::Engine* pEngine) {
77            Engine* engine = static_cast<Engine*>(pEngine);
78            this->pEngine     = engine;
79            this->pDiskThread = engine->pDiskThread;
80          dmsg(6,("Voice::SetEngine()\n"));          dmsg(6,("Voice::SetEngine()\n"));
81      }      }
82    
83      /**      Voice::SampleInfo Voice::GetSampleInfo() {
84       *  Initializes and triggers the voice, a disk stream will be launched if          SampleInfo si;
85       *  needed.          si.SampleRate       = pSample->SamplesPerSecond;
86       *          si.ChannelCount     = pSample->Channels;
87       *  @param pEngineChannel - engine channel on which this voice was ordered          si.FrameSize        = pSample->FrameSize;
88       *  @param itNoteOnEvent  - event that caused triggering of this voice          si.BitDepth         = pSample->BitDepth;
89       *  @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);  
   
         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;  
         }  
90    
91          // select channel mode (mono or stereo)          si.HasLoops       = pRegion->SampleLoops;
92          SYNTHESIS_MODE_SET_CHANNELS(SynthesisMode, pSample->Channels == 2);          si.LoopStart      = (si.HasLoops) ? pRegion->pSampleLoops[0].LoopStart  : 0;
93            si.LoopLength     = (si.HasLoops) ? pRegion->pSampleLoops[0].LoopLength : 0;
94            si.LoopPlayCount  = pSample->LoopPlayCount;
95            si.Unpitched      = !pRegion->PitchTrack;
96    
97          // get starting crossfade volume level          return si;
98          switch (pDimRgn->AttenuationController.type) {      }
             case ::gig::attenuation_ctrl_t::type_channelaftertouch:  
                 CrossfadeVolume = 1.0f; //TODO: aftertouch not supported yet  
                 break;  
             case ::gig::attenuation_ctrl_t::type_velocity:  
                 CrossfadeVolume = CrossfadeAttenuation(itNoteOnEvent->Param.Note.Velocity);  
                 break;  
             case ::gig::attenuation_ctrl_t::type_controlchange: //FIXME: currently not sample accurate  
                 CrossfadeVolume = CrossfadeAttenuation(pEngineChannel->ControllerTable[pDimRgn->AttenuationController.controller_number]);  
                 break;  
             case ::gig::attenuation_ctrl_t::type_none: // no crossfade defined  
             default:  
                 CrossfadeVolume = 1.0f;  
         }  
99    
100          PanLeft  = 1.0f - float(RTMath::Max(pDimRgn->Pan, 0)) /  63.0f;      Voice::RegionInfo Voice::GetRegionInfo() {
101          PanRight = 1.0f - float(RTMath::Min(pDimRgn->Pan, 0)) / -64.0f;          RegionInfo ri;
102            ri.UnityNote = pRegion->UnityNote;
103            ri.FineTune  = pRegion->FineTune;
104            ri.Pan       = pRegion->Pan;
105            ri.SampleStartOffset = pRegion->SampleStartOffset;
106    
107          finalSynthesisParameters.dPos = pDimRgn->SampleStartOffset; // offset where we should start playback of sample (0 - 2000 sample points)          ri.EG2PreAttack        = pRegion->EG2PreAttack;
108            ri.EG2Attack           = pRegion->EG2Attack;
109            ri.EG2Decay1           = pRegion->EG2Decay1;
110            ri.EG2Decay2           = pRegion->EG2Decay2;
111            ri.EG2Sustain          = pRegion->EG2Sustain;
112            ri.EG2InfiniteSustain  = pRegion->EG2InfiniteSustain;
113            ri.EG2Release          = pRegion->EG2Release;
114    
115          // Check if the sample needs disk streaming or is too short for that          ri.EG3Attack     = pRegion->EG3Attack;
116          long cachedsamples = pSample->GetCache().Size / pSample->FrameSize;          ri.EG3Depth      = pRegion->EG3Depth;
117          DiskVoice          = cachedsamples < pSample->SamplesTotal;          ri.VCFEnabled    = pRegion->VCFEnabled;
118            ri.VCFType       = Filter::vcf_type_t(pRegion->VCFType);
119            ri.VCFResonance  = pRegion->VCFResonance;
120    
121          if (DiskVoice) { // voice to be streamed from disk          ri.ReleaseTriggerDecay = 0.01053 * (256 >> pRegion->ReleaseTriggerDecay);
             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)  
122    
123              // check if there's a loop defined which completely fits into the cached (RAM) part of the sample          return ri;
124              if (pSample->Loops && pSample->LoopEnd <= MaxRAMPos) {      }
                 RAMLoop            = true;  
                 loop.uiTotalCycles = pSample->LoopPlayCount;  
                 loop.uiCyclesLeft  = pSample->LoopPlayCount;  
                 loop.uiStart       = pSample->LoopStart;  
                 loop.uiEnd         = pSample->LoopEnd;  
                 loop.uiSize        = pSample->LoopSize;  
             }  
             else RAMLoop = false;  
125    
126              if (pDiskThread->OrderNewStream(&DiskStreamRef, pSample, MaxRAMPos, !RAMLoop) < 0) {      Voice::InstrumentInfo Voice::GetInstrumentInfo() {
127                  dmsg(1,("Disk stream order failed!\n"));          InstrumentInfo ii;
128                  KillImmediately();          ii.FineTune = GetGigEngineChannel()->pInstrument->FineTune;
129                  return -1;          ii.PitchbendRange = GetGigEngineChannel()->pInstrument->PitchbendRange;
             }  
             dmsg(4,("Disk voice launched (cached samples: %d, total Samples: %d, MaxRAMPos: %d, RAMLooping: %s)\n", cachedsamples, pSample->SamplesTotal, MaxRAMPos, (RAMLoop) ? "yes" : "no"));  
         }  
         else { // RAM only voice  
             MaxRAMPos = cachedsamples;  
             if (pSample->Loops) {  
                 RAMLoop           = true;  
                 loop.uiCyclesLeft = pSample->LoopPlayCount;  
             }  
             else RAMLoop = false;  
             dmsg(4,("RAM only voice launched (Looping: %s)\n", (RAMLoop) ? "yes" : "no"));  
         }  
130    
131            return ii;
132        }
133    
134          // calculate initial pitch value      double Voice::GetSampleAttenuation() {
135          {          return pRegion->SampleAttenuation;
136              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;  
137    
138              // calculate influence of EG1 controller on EG1's parameters      double Voice::GetVelocityAttenuation(uint8_t MIDIKeyVelocity) {
139              // (eg1attack is different from the others)          return pRegion->GetVelocityAttenuation(MIDIKeyVelocity);
140              double eg1attack  = (pDimRgn->EG1ControllerAttackInfluence)  ?      }
                 1 + 0.031 * (double) (pDimRgn->EG1ControllerAttackInfluence == 1 ?  
                                       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,  
                         pSample->LoopStart,  
                         pDimRgn->EG1Decay1 * eg1decay * velrelease,  
                         pDimRgn->EG1Decay2 * eg1decay * velrelease,  
                         pDimRgn->EG1InfiniteSustain,  
                         pDimRgn->EG1Sustain,  
                         pDimRgn->EG1Release * eg1release * velrelease,  
                         velocityAttenuation,  
                         pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);  
         }  
141    
142        double Voice::GetVelocityRelease(uint8_t MIDIKeyVelocity) {
143            return pRegion->GetVelocityRelease(MIDIKeyVelocity);
144        }
145    
146          // setup EG 2 (VCF Cutoff EG)      void Voice::ProcessCCEvent(RTList<Event>::Iterator& itEvent) {
147          {          if (itEvent->Type == Event::type_control_change && itEvent->Param.CC.Controller) { // if (valid) MIDI control change event
148              // get current value of EG2 controller              if (pRegion->AttenuationController.type == ::gig::attenuation_ctrl_t::type_controlchange &&
149              double eg2controllervalue;                  itEvent->Param.CC.Controller == pRegion->AttenuationController.controller_number) {
150              switch (pDimRgn->EG2Controller.type) {                  CrossfadeSmoother.update(AbstractEngine::CrossfadeCurve[CrossfadeAttenuation(itEvent->Param.CC.Value)]);
                 case ::gig::eg2_ctrl_t::type_none: // no controller defined  
                     eg2controllervalue = 0;  
                     break;  
                 case ::gig::eg2_ctrl_t::type_channelaftertouch:  
                     eg2controllervalue = 0; // TODO: aftertouch not yet supported  
                     break;  
                 case ::gig::eg2_ctrl_t::type_velocity:  
                     eg2controllervalue = itNoteOnEvent->Param.Note.Velocity;  
                     break;  
                 case ::gig::eg2_ctrl_t::type_controlchange: // MIDI control change controller  
                     eg2controllervalue = pEngineChannel->ControllerTable[pDimRgn->EG2Controller.controller_number];  
                     break;  
151              }              }
152              if (pDimRgn->EG2ControllerInvert) eg2controllervalue = 127 - eg2controllervalue;          }
153        }
154    
155              // calculate influence of EG2 controller on EG2's parameters      void Voice::ProcessChannelPressureEvent(RTList<Event>::Iterator& itEvent) {
156              double eg2attack  = (pDimRgn->EG2ControllerAttackInfluence)  ? 1 + 0.00775 * (double) (1 << pDimRgn->EG2ControllerAttackInfluence)  * eg2controllervalue : 1.0;          if (itEvent->Type == Event::type_channel_pressure) { // if (valid) MIDI channel pressure (aftertouch) event
157              double eg2decay   = (pDimRgn->EG2ControllerDecayInfluence)   ? 1 + 0.00775 * (double) (1 << pDimRgn->EG2ControllerDecayInfluence)   * eg2controllervalue : 1.0;              if (pRegion->AttenuationController.type == ::gig::attenuation_ctrl_t::type_channelaftertouch) {
158              double eg2release = (pDimRgn->EG2ControllerReleaseInfluence) ? 1 + 0.00775 * (double) (1 << pDimRgn->EG2ControllerReleaseInfluence) * eg2controllervalue : 1.0;                  CrossfadeSmoother.update(AbstractEngine::CrossfadeCurve[CrossfadeAttenuation(itEvent->Param.ChannelPressure.Value)]);
159                }
             EG2.trigger(pDimRgn->EG2PreAttack,  
                         pDimRgn->EG2Attack * eg2attack,  
                         false,  
                         pSample->LoopStart,  
                         pDimRgn->EG2Decay1 * eg2decay * velrelease,  
                         pDimRgn->EG2Decay2 * eg2decay * velrelease,  
                         pDimRgn->EG2InfiniteSustain,  
                         pDimRgn->EG2Sustain,  
                         pDimRgn->EG2Release * eg2release * velrelease,  
                         velocityAttenuation,  
                         pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);  
160          }          }
161        }
162    
163        void Voice::ProcessPolyphonicKeyPressureEvent(RTList<Event>::Iterator& itEvent) {
164            // Not used so far
165        }
166    
167        uint8_t Voice::MinCutoff() const {
168            // If there's a cutoff controller defined then VCFVelocityScale means
169            // "minimum cutoff". If there is no MIDI controller defined for cutoff
170            // then VCFVelocityScale is already taken into account on libgig side
171            // instead by call to pRegion->GetVelocityCutoff(MIDIKeyVelocity).
172            return pRegion->VCFVelocityScale;
173        }
174    
175        // This is called on any cutoff controller changes, however not when the
176        // voice is triggered. So the initial cutoff value is retrieved by a call
177        // to CalculateFinalCutoff() instead.
178        void Voice::ProcessCutoffEvent(RTList<Event>::Iterator& itEvent) {
179            if (VCFCutoffCtrl.value == itEvent->Param.CC.Value) return;
180            float ccvalue = VCFCutoffCtrl.value = itEvent->Param.CC.Value;
181    
182            // if the selected filter type is an official GigaStudio filter type
183            // then we preserve the original (no matter how odd) historical GSt
184            // behaviour identically; for our own filter types though we deviate to
185            // more meaningful behaviours where appropriate
186            const bool isGStFilter = isGStFilterType(pRegion->VCFType);
187    
188          // setup EG 3 (VCO EG)          if (pRegion->VCFCutoffControllerInvert) ccvalue = 127 - ccvalue;
189          {          if (isGStFilter) {
190            double eg3depth = RTMath::CentsToFreqRatio(pDimRgn->EG3Depth);              // VCFVelocityScale in this case means "minimum cutoff" for GSt
191            EG3.trigger(eg3depth, pDimRgn->EG3Attack, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);              if (ccvalue < MinCutoff()) ccvalue = MinCutoff();
192            } else {
193                // for our own filter types we interpret "minimum cutoff"
194                // differently: GSt handles this as a simple hard limit with the
195                // consequence that a certain range of the controller is simply
196                // dead; so for our filter types we rather remap that to
197                // restrain within the min_cutoff..127 range as well, but
198                // effectively spanned over the entire controller range (0..127)
199                // to avoid such a "dead" lower controller zone
200                ccvalue = MinCutoff() + (ccvalue / 127.f) * float(127 - MinCutoff());
201          }          }
202    
203            float cutoff = CutoffBase * ccvalue;
204            if (cutoff > 127.0f) cutoff = 127.0f;
205    
206          // setup LFO 1 (VCA LFO)          // the filter implementations of the original GSt filter types take an
207          {          // abstract cutoff parameter range of 0..127, whereas our own filter
208              uint16_t lfo1_internal_depth;          // types take a cutoff parameter in Hz, so remap here:
209              switch (pDimRgn->LFO1Controller) {          // 0 .. 127 [lin] -> 21 Hz .. 18 kHz [x^4] (center @2.2 kHz)
210                  case ::gig::lfo1_ctrl_internal:          if (!isGStFilter) {
211                      lfo1_internal_depth  = pDimRgn->LFO1InternalDepth;              cutoff = (cutoff + 29.f) / (127.f + 29.f);
212                      pLFO1->ExtController = 0; // no external controller              cutoff = cutoff * cutoff * cutoff * cutoff * 18000.f;
213                      bLFO1Enabled         = (lfo1_internal_depth > 0);              if (cutoff > 0.49f * pEngine->SampleRate)
214                      break;                  cutoff = 0.49f * pEngine->SampleRate;
                 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);  
215          }          }
216    
217            fFinalCutoff = VCFCutoffCtrl.fvalue = cutoff;
218        }
219    
220          // setup LFO 2 (VCF Cutoff LFO)      double Voice::CalculateCrossfadeVolume(uint8_t MIDIKeyVelocity) {
221          {          float crossfadeVolume;
222              uint16_t lfo2_internal_depth;          switch (pRegion->AttenuationController.type) {
223              switch (pDimRgn->LFO2Controller) {              case ::gig::attenuation_ctrl_t::type_channelaftertouch:
224                  case ::gig::lfo2_ctrl_internal:                  crossfadeVolume = Engine::CrossfadeCurve[CrossfadeAttenuation(GetGigEngineChannel()->ControllerTable[128])];
225                      lfo2_internal_depth  = pDimRgn->LFO2InternalDepth;                  break;
226                      pLFO2->ExtController = 0; // no external controller              case ::gig::attenuation_ctrl_t::type_velocity:
227                      bLFO2Enabled         = (lfo2_internal_depth > 0);                  crossfadeVolume = Engine::CrossfadeCurve[CrossfadeAttenuation(MIDIKeyVelocity)];
228                      break;                  break;
229                  case ::gig::lfo2_ctrl_modwheel:              case ::gig::attenuation_ctrl_t::type_controlchange: //FIXME: currently not sample accurate
230                      lfo2_internal_depth  = 0;                  crossfadeVolume = Engine::CrossfadeCurve[CrossfadeAttenuation(GetGigEngineChannel()->ControllerTable[pRegion->AttenuationController.controller_number])];
231                      pLFO2->ExtController = 1; // MIDI controller 1                  break;
232                      bLFO2Enabled         = (pDimRgn->LFO2ControlDepth > 0);              case ::gig::attenuation_ctrl_t::type_none: // no crossfade defined
233                      break;              default:
234                  case ::gig::lfo2_ctrl_foot:                  crossfadeVolume = 1.0f;
                     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);  
235          }          }
236    
237            return crossfadeVolume;
238        }
239    
240          // setup LFO 3 (VCO LFO)      double Voice::GetEG1ControllerValue(uint8_t MIDIKeyVelocity) {
241          {          double eg1controllervalue = 0;
242              uint16_t lfo3_internal_depth;          switch (pRegion->EG1Controller.type) {
243              switch (pDimRgn->LFO3Controller) {              case ::gig::eg1_ctrl_t::type_none: // no controller defined
244                  case ::gig::lfo3_ctrl_internal:                  eg1controllervalue = 0;
245                      lfo3_internal_depth  = pDimRgn->LFO3InternalDepth;                  break;
246                      pLFO3->ExtController = 0; // no external controller              case ::gig::eg1_ctrl_t::type_channelaftertouch:
247                      bLFO3Enabled         = (lfo3_internal_depth > 0);                  eg1controllervalue = GetGigEngineChannel()->ControllerTable[128];
248                      break;                  break;
249                  case ::gig::lfo3_ctrl_modwheel:              case ::gig::eg1_ctrl_t::type_velocity:
250                      lfo3_internal_depth  = 0;                  eg1controllervalue = MIDIKeyVelocity;
251                      pLFO3->ExtController = 1; // MIDI controller 1                  break;
252                      bLFO3Enabled         = (pDimRgn->LFO3ControlDepth > 0);              case ::gig::eg1_ctrl_t::type_controlchange: // MIDI control change controller
253                      break;                  eg1controllervalue = GetGigEngineChannel()->ControllerTable[pRegion->EG1Controller.controller_number];
254                  case ::gig::lfo3_ctrl_aftertouch:                  break;
                     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);  
255          }          }
256            if (pRegion->EG1ControllerInvert) eg1controllervalue = 127 - eg1controllervalue;
257    
258            return eg1controllervalue;
259        }
260    
261          #if CONFIG_FORCE_FILTER      Voice::EGInfo Voice::CalculateEG1ControllerInfluence(double eg1ControllerValue) {
262          const bool bUseFilter = true;          EGInfo eg;
263          #else // use filter only if instrument file told so          // (eg1attack is different from the others)
264          const bool bUseFilter = pDimRgn->VCFEnabled;          if (pRegion->EG1Attack < 1e-8 && // attack in gig == 0
265          #endif // CONFIG_FORCE_FILTER              (pRegion->EG1ControllerAttackInfluence == 0 ||
266          SYNTHESIS_MODE_SET_FILTER(SynthesisMode, bUseFilter);               eg1ControllerValue <= 10)) { // strange GSt special case
267          if (bUseFilter) {              eg.Attack = 0; // this will force the attack to be 0 in the call to EG1.trigger
268              #ifdef CONFIG_OVERRIDE_CUTOFF_CTRL          } else {
269              VCFCutoffCtrl.controller = CONFIG_OVERRIDE_CUTOFF_CTRL;              eg.Attack  = (pRegion->EG1ControllerAttackInfluence)  ?
270              #else // use the one defined in the instrument file                  1 + 0.031 * (double) (pRegion->EG1ControllerAttackInfluence == 1 ?
271              switch (pDimRgn->VCFCutoffController) {                                        1 : 1 << pRegion->EG1ControllerAttackInfluence) * eg1ControllerValue : 1.0;
272                  case ::gig::vcf_cutoff_ctrl_modwheel:          }
273                      VCFCutoffCtrl.controller = 1;          eg.Decay   = (pRegion->EG1ControllerDecayInfluence)   ? 1 + 0.00775 * (double) (1 << pRegion->EG1ControllerDecayInfluence)   * eg1ControllerValue : 1.0;
274                      break;          eg.Release = (pRegion->EG1ControllerReleaseInfluence) ? 1 + 0.00775 * (double) (1 << pRegion->EG1ControllerReleaseInfluence) * eg1ControllerValue : 1.0;
275                  case ::gig::vcf_cutoff_ctrl_effect1:  
276                      VCFCutoffCtrl.controller = 12;          return eg;
277                      break;      }
278                  case ::gig::vcf_cutoff_ctrl_effect2:  
279                      VCFCutoffCtrl.controller = 13;      double Voice::GetEG2ControllerValue(uint8_t MIDIKeyVelocity) {
280                      break;          double eg2controllervalue = 0;
281                  case ::gig::vcf_cutoff_ctrl_breath:          switch (pRegion->EG2Controller.type) {
282                      VCFCutoffCtrl.controller = 2;              case ::gig::eg2_ctrl_t::type_none: // no controller defined
283                      break;                  eg2controllervalue = 0;
284                  case ::gig::vcf_cutoff_ctrl_foot:                  break;
285                      VCFCutoffCtrl.controller = 4;              case ::gig::eg2_ctrl_t::type_channelaftertouch:
286                      break;                  eg2controllervalue = GetGigEngineChannel()->ControllerTable[128];
287                  case ::gig::vcf_cutoff_ctrl_sustainpedal:                  break;
288                      VCFCutoffCtrl.controller = 64;              case ::gig::eg2_ctrl_t::type_velocity:
289                      break;                  eg2controllervalue = MIDIKeyVelocity;
290                  case ::gig::vcf_cutoff_ctrl_softpedal:                  break;
291                      VCFCutoffCtrl.controller = 67;              case ::gig::eg2_ctrl_t::type_controlchange: // MIDI control change controller
292                      break;                  eg2controllervalue = GetGigEngineChannel()->ControllerTable[pRegion->EG2Controller.controller_number];
293                  case ::gig::vcf_cutoff_ctrl_genpurpose7:                  break;
294                      VCFCutoffCtrl.controller = 82;          }
295                      break;          if (pRegion->EG2ControllerInvert) eg2controllervalue = 127 - eg2controllervalue;
                 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  
296    
297              #ifdef CONFIG_OVERRIDE_RESONANCE_CTRL          return eg2controllervalue;
298              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  
299    
300              #ifndef CONFIG_OVERRIDE_FILTER_TYPE      Voice::EGInfo Voice::CalculateEG2ControllerInfluence(double eg2ControllerValue) {
301              finalSynthesisParameters.filterLeft.SetType(pDimRgn->VCFType);          EGInfo eg;
302              finalSynthesisParameters.filterRight.SetType(pDimRgn->VCFType);          eg.Attack  = (pRegion->EG2ControllerAttackInfluence)  ? 1 + 0.00775 * (double) (1 << pRegion->EG2ControllerAttackInfluence)  * eg2ControllerValue : 1.0;
303              #else // override filter type          eg.Decay   = (pRegion->EG2ControllerDecayInfluence)   ? 1 + 0.00775 * (double) (1 << pRegion->EG2ControllerDecayInfluence)   * eg2ControllerValue : 1.0;
304              FilterLeft.SetType(CONFIG_OVERRIDE_FILTER_TYPE);          eg.Release = (pRegion->EG2ControllerReleaseInfluence) ? 1 + 0.00775 * (double) (1 << pRegion->EG2ControllerReleaseInfluence) * eg2ControllerValue : 1.0;
             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;  
305    
306              int cvalue;          return eg;
307              if (VCFCutoffCtrl.controller) {      }
                 cvalue = pEngineChannel->ControllerTable[VCFCutoffCtrl.controller];  
                 if (pDimRgn->VCFCutoffControllerInvert) cvalue = 127 - cvalue;  
                 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 = exp(cutoff * FILTER_CUTOFF_COEFF) * CONFIG_FILTER_CUTOFF_MIN;  
   
             // calculate resonance  
             float resonance = (float) VCFResonanceCtrl.value * 0.00787f;   // 0.0..1.0  
             if (pDimRgn->VCFKeyboardTracking) {  
                 resonance += (float) (itNoteOnEvent->Param.Note.Key - pDimRgn->VCFKeyboardTrackingBreakpoint) * 0.00787f;  
             }  
             Constrain(resonance, 0.0, 1.0); // correct resonance if outside allowed value range (0.0..1.0)  
308    
309              VCFCutoffCtrl.fvalue    = cutoff - CONFIG_FILTER_CUTOFF_MIN;      void Voice::InitLFO1() {
310              VCFResonanceCtrl.fvalue = resonance;          uint16_t lfo1_internal_depth;
311          }          switch (pRegion->LFO1Controller) {
312          else {              case ::gig::lfo1_ctrl_internal:
313              VCFCutoffCtrl.controller    = 0;                  lfo1_internal_depth  = pRegion->LFO1InternalDepth;
314              VCFResonanceCtrl.controller = 0;                  pLFO1->ExtController = 0; // no external controller
315          }                  bLFO1Enabled         = (lfo1_internal_depth > 0);
316                    break;
317          return 0; // success              case ::gig::lfo1_ctrl_modwheel:
318      }                  lfo1_internal_depth  = 0;
319                    pLFO1->ExtController = 1; // MIDI controller 1
320      /**                  bLFO1Enabled         = (pRegion->LFO1ControlDepth > 0);
321       *  Renders the audio data for this voice for the current audio fragment.                  break;
322       *  The sample input data can either come from RAM (cached sample or sample              case ::gig::lfo1_ctrl_breath:
323       *  part) or directly from disk. The output signal will be rendered by                  lfo1_internal_depth  = 0;
324       *  resampling / interpolation. If this voice is a disk streaming voice and                  pLFO1->ExtController = 2; // MIDI controller 2
325       *  the voice completely played back the cached RAM part of the sample, it                  bLFO1Enabled         = (pRegion->LFO1ControlDepth > 0);
326       *  will automatically switch to disk playback for the next RenderAudio()                  break;
327       *  call.              case ::gig::lfo1_ctrl_internal_modwheel:
328       *                  lfo1_internal_depth  = pRegion->LFO1InternalDepth;
329       *  @param Samples - number of samples to be rendered in this audio fragment cycle                  pLFO1->ExtController = 1; // MIDI controller 1
330       */                  bLFO1Enabled         = (lfo1_internal_depth > 0 || pRegion->LFO1ControlDepth > 0);
331      void Voice::Render(uint Samples) {                  break;
332                case ::gig::lfo1_ctrl_internal_breath:
333          // select default values for synthesis mode bits                  lfo1_internal_depth  = pRegion->LFO1InternalDepth;
334          SYNTHESIS_MODE_SET_LOOP(SynthesisMode, false);                  pLFO1->ExtController = 2; // MIDI controller 2
335                    bLFO1Enabled         = (lfo1_internal_depth > 0 || pRegion->LFO1ControlDepth > 0);
336          switch (this->PlaybackState) {                  break;
337                default:
338              case playback_state_init:                  lfo1_internal_depth  = 0;
339                  this->PlaybackState = playback_state_ram; // we always start playback from RAM cache and switch then to disk if needed                  pLFO1->ExtController = 0; // no external controller
340                  // no break - continue with playback_state_ram                  bLFO1Enabled         = false;
341            }
342              case playback_state_ram: {          if (bLFO1Enabled) {
343                      if (RAMLoop) SYNTHESIS_MODE_SET_LOOP(SynthesisMode, true); // enable looping              pLFO1->trigger(fromGigLfoWave(pRegion->LFO1WaveForm),
344                               pRegion->LFO1Frequency,
345                      // render current fragment                             pRegion->LFO1Phase,
346                      Synthesize(Samples, (sample_t*) pSample->GetCache().pStart, Delay);                             LFO::start_level_mid, // see https://sourceforge.net/p/linuxsampler/mailman/linuxsampler-devel/thread/2189307.cNP0Xbctxq%40silver/#msg36774029
347                               lfo1_internal_depth,
348                      if (DiskVoice) {                             pRegion->LFO1ControlDepth,
349                          // check if we reached the allowed limit of the sample RAM cache                             pRegion->LFO1FlipPhase,
350                          if (finalSynthesisParameters.dPos > MaxRAMPos) {                             pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
351                              dmsg(5,("Voice: switching to disk playback (Pos=%f)\n", finalSynthesisParameters.dPos));              pLFO1->updateByMIDICtrlValue(pLFO1->ExtController ? GetGigEngineChannel()->ControllerTable[pLFO1->ExtController] : 0);
352                              this->PlaybackState = playback_state_disk;              pLFO1->setScriptDepthFactor(
353                          }                  pNote->Override.AmpLFODepth.Value,
354                      } else if (finalSynthesisParameters.dPos >= pSample->GetCache().Size / pSample->FrameSize) {                  pNote->Override.AmpLFODepth.Final
355                          this->PlaybackState = playback_state_end;              );
356                      }              if (pNote->Override.AmpLFOFreq.isFinal())
357                  }                  pLFO1->setScriptFrequencyFinal(
358                  break;                      pNote->Override.AmpLFOFreq.Value, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE
359                    );
360              case playback_state_disk: {              else
361                      if (!DiskStreamRef.pStream) {                  pLFO1->setScriptFrequencyFactor(
362                          // check if the disk thread created our ordered disk stream in the meantime                      pNote->Override.AmpLFOFreq.Value, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE
363                          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 synthesis event lists  
         pEngineChannel->pEvents->clear();  
   
         // 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, finalSynthesisParameters.dPos, finalSynthesisParameters.fFinalPitch, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);  
                 EG2.update(EGADSR::event_release, finalSynthesisParameters.dPos, finalSynthesisParameters.fFinalPitch, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);  
             } else if (itEvent->Type == Event::type_cancel_release) {  
                 EG1.update(EGADSR::event_cancel_release, finalSynthesisParameters.dPos, finalSynthesisParameters.fFinalPitch, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);  
                 EG2.update(EGADSR::event_cancel_release, finalSynthesisParameters.dPos, finalSynthesisParameters.fFinalPitch, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);  
             }  
364          }          }
365      }      }
366    
367      /**      void Voice::InitLFO2() {
368       * Process given list of MIDI control change and pitch bend events for          uint16_t lfo2_internal_depth;
369       * the given time.          switch (pRegion->LFO2Controller) {
370       *              case ::gig::lfo2_ctrl_internal:
371       * @param itEvent - iterator pointing to the next event to be processed                  lfo2_internal_depth  = pRegion->LFO2InternalDepth;
372       * @param End     - youngest time stamp where processing should be stopped                  pLFO2->ExtController = 0; // no external controller
373       */                  bLFO2Enabled         = (lfo2_internal_depth > 0);
374      void Voice::processCCEvents(RTList<Event>::Iterator& itEvent, uint End) {                  break;
375          for (; itEvent && itEvent->FragmentPos() <= End; ++itEvent) {              case ::gig::lfo2_ctrl_modwheel:
376              if (itEvent->Type == Event::type_control_change &&                  lfo2_internal_depth  = 0;
377                  itEvent->Param.CC.Controller) { // if (valid) MIDI control change event                  pLFO2->ExtController = 1; // MIDI controller 1
378                  if (itEvent->Param.CC.Controller == VCFCutoffCtrl.controller) {                  bLFO2Enabled         = (pRegion->LFO2ControlDepth > 0);
379                      processCutoffEvent(itEvent);                  break;
380                  }              case ::gig::lfo2_ctrl_foot:
381                  if (itEvent->Param.CC.Controller == VCFResonanceCtrl.controller) {                  lfo2_internal_depth  = 0;
382                      processResonanceEvent(itEvent);                  pLFO2->ExtController = 4; // MIDI controller 4
383                  }                  bLFO2Enabled         = (pRegion->LFO2ControlDepth > 0);
384                  if (itEvent->Param.CC.Controller == pLFO1->ExtController) {                  break;
385                      pLFO1->update(itEvent->Param.CC.Value);              case ::gig::lfo2_ctrl_internal_modwheel:
386                  }                  lfo2_internal_depth  = pRegion->LFO2InternalDepth;
387                  if (itEvent->Param.CC.Controller == pLFO2->ExtController) {                  pLFO2->ExtController = 1; // MIDI controller 1
388                      pLFO2->update(itEvent->Param.CC.Value);                  bLFO2Enabled         = (lfo2_internal_depth > 0 || pRegion->LFO2ControlDepth > 0);
389                  }                  break;
390                  if (itEvent->Param.CC.Controller == pLFO3->ExtController) {              case ::gig::lfo2_ctrl_internal_foot:
391                      pLFO3->update(itEvent->Param.CC.Value);                  lfo2_internal_depth  = pRegion->LFO2InternalDepth;
392                  }                  pLFO2->ExtController = 4; // MIDI controller 4
393                  if (pDimRgn->AttenuationController.type == ::gig::attenuation_ctrl_t::type_controlchange &&                  bLFO2Enabled         = (lfo2_internal_depth > 0 || pRegion->LFO2ControlDepth > 0);
394                      itEvent->Param.CC.Controller == pDimRgn->AttenuationController.controller_number) {                  break;
395                      processCrossFadeEvent(itEvent);              default:
396                  }                  lfo2_internal_depth  = 0;
397              } else if (itEvent->Type == Event::type_pitchbend) { // if pitch bend event                  pLFO2->ExtController = 0; // no external controller
398                  processPitchEvent(itEvent);                  bLFO2Enabled         = false;
399              }          }
400            if (bLFO2Enabled) {
401                pLFO2->trigger(fromGigLfoWave(pRegion->LFO2WaveForm),
402                               pRegion->LFO2Frequency,
403                               pRegion->LFO2Phase,
404                               LFO::start_level_mid, // see https://sourceforge.net/p/linuxsampler/mailman/linuxsampler-devel/thread/2189307.cNP0Xbctxq%40silver/#msg36774029
405                               lfo2_internal_depth,
406                               pRegion->LFO2ControlDepth,
407                               pRegion->LFO2FlipPhase,
408                               pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
409                pLFO2->updateByMIDICtrlValue(pLFO2->ExtController ? GetGigEngineChannel()->ControllerTable[pLFO2->ExtController] : 0);
410                pLFO2->setScriptDepthFactor(
411                    pNote->Override.CutoffLFODepth.Value,
412                    pNote->Override.CutoffLFODepth.Final
413                );
414                if (pNote->Override.CutoffLFOFreq.isFinal())
415                    pLFO2->setScriptFrequencyFinal(pNote->Override.CutoffLFOFreq.Value, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
416                else
417                    pLFO2->setScriptFrequencyFactor(pNote->Override.CutoffLFOFreq.Value, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
418          }          }
419      }      }
420    
421      void Voice::processPitchEvent(RTList<Event>::Iterator& itEvent) {      void Voice::InitLFO3() {
422          const float pitch = RTMath::CentsToFreqRatio(((double) itEvent->Param.Pitch.Pitch / 8192.0) * 200.0); // +-two semitones = +-200 cents          uint16_t lfo3_internal_depth;
423          finalSynthesisParameters.fFinalPitch *= pitch;          switch (pRegion->LFO3Controller) {
424          PitchBend = pitch;              case ::gig::lfo3_ctrl_internal:
425      }                  lfo3_internal_depth  = pRegion->LFO3InternalDepth;
426                    pLFO3->ExtController = 0; // no external controller
427      void Voice::processCrossFadeEvent(RTList<Event>::Iterator& itEvent) {                  bLFO3Enabled         = (lfo3_internal_depth > 0);
428          CrossfadeVolume = CrossfadeAttenuation(itEvent->Param.CC.Value);                  break;
429          #if CONFIG_PROCESS_MUTED_CHANNELS              case ::gig::lfo3_ctrl_modwheel:
430          const float effectiveVolume = CrossfadeVolume * Volume * (pEngineChannel->GetMute() ? 0 : pEngineChannel->GlobalVolume);                  lfo3_internal_depth  = 0;
431          #else                  pLFO3->ExtController = 1; // MIDI controller 1
432          const float effectiveVolume = CrossfadeVolume * Volume * pEngineChannel->GlobalVolume;                  bLFO3Enabled         = (pRegion->LFO3ControlDepth > 0);
433          #endif                  break;
434          fFinalVolume = effectiveVolume;              case ::gig::lfo3_ctrl_aftertouch:
435      }                  lfo3_internal_depth  = 0;
436                    pLFO3->ExtController = CTRL_TABLE_IDX_AFTERTOUCH;
437      void Voice::processCutoffEvent(RTList<Event>::Iterator& itEvent) {                  bLFO3Enabled         = true;
438          int ccvalue = itEvent->Param.CC.Value;                  break;
439          if (VCFCutoffCtrl.value == ccvalue) return;              case ::gig::lfo3_ctrl_internal_modwheel:
440          VCFCutoffCtrl.value == ccvalue;                  lfo3_internal_depth  = pRegion->LFO3InternalDepth;
441          if (pDimRgn->VCFCutoffControllerInvert)  ccvalue = 127 - ccvalue;                  pLFO3->ExtController = 1; // MIDI controller 1
442          if (ccvalue < pDimRgn->VCFVelocityScale) ccvalue = pDimRgn->VCFVelocityScale;                  bLFO3Enabled         = (lfo3_internal_depth > 0 || pRegion->LFO3ControlDepth > 0);
443          float cutoff = CutoffBase * float(ccvalue) * 0.00787402f; // (1 / 127)                  break;
444          if (cutoff > 1.0) cutoff = 1.0;              case ::gig::lfo3_ctrl_internal_aftertouch:
445          cutoff = exp(cutoff * FILTER_CUTOFF_COEFF) * CONFIG_FILTER_CUTOFF_MIN - CONFIG_FILTER_CUTOFF_MIN;                  lfo3_internal_depth  = pRegion->LFO3InternalDepth;
446          VCFCutoffCtrl.fvalue = cutoff; // needed for initialization of fFinalCutoff next time                  pLFO3->ExtController = CTRL_TABLE_IDX_AFTERTOUCH;
447          fFinalCutoff = cutoff;                  bLFO3Enabled         = (lfo3_internal_depth > 0 || pRegion->LFO3ControlDepth > 0);
448      }                  break;
449                default:
450      void Voice::processResonanceEvent(RTList<Event>::Iterator& itEvent) {                  lfo3_internal_depth  = 0;
451          // convert absolute controller value to differential                  pLFO3->ExtController = 0; // no external controller
452          const int ctrldelta = itEvent->Param.CC.Value - VCFResonanceCtrl.value;                  bLFO3Enabled         = false;
453          VCFResonanceCtrl.value = itEvent->Param.CC.Value;          }
454          const float resonancedelta = (float) ctrldelta * 0.00787f; // 0.0..1.0          if (bLFO3Enabled) {
455          fFinalResonance += resonancedelta;              pLFO3->trigger(fromGigLfoWave(pRegion->LFO3WaveForm),
456          // needed for initialization of parameter                             pRegion->LFO3Frequency,
457          VCFResonanceCtrl.fvalue = itEvent->Param.CC.Value * 0.00787f;                             pRegion->LFO3Phase,
458      }                             LFO::start_level_max, // see https://sourceforge.net/p/linuxsampler/mailman/linuxsampler-devel/thread/2189307.cNP0Xbctxq%40silver/#msg36774029
459                               lfo3_internal_depth,
460      /**                             pRegion->LFO3ControlDepth,
461       *  Synthesizes the current audio fragment for this voice.                             pRegion->LFO3FlipPhase,
462       *                             pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
463       *  @param Samples - number of sample points to be rendered in this audio              pLFO3->updateByMIDICtrlValue(pLFO3->ExtController ? GetGigEngineChannel()->ControllerTable[pLFO3->ExtController] : 0);
464       *                   fragment cycle              pLFO3->setScriptDepthFactor(
465       *  @param pSrc    - pointer to input sample data                  pNote->Override.PitchLFODepth.Value,
466       *  @param Skip    - number of sample points to skip in output buffer                  pNote->Override.PitchLFODepth.Final
467       */              );
468      void Voice::Synthesize(uint Samples, sample_t* pSrc, uint Skip) {              if (pNote->Override.PitchLFOFreq.isFinal())
469          finalSynthesisParameters.pOutLeft  = &pEngineChannel->pOutputLeft[Skip];                  pLFO3->setScriptFrequencyFinal(pNote->Override.PitchLFOFreq.Value, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
470          finalSynthesisParameters.pOutRight = &pEngineChannel->pOutputRight[Skip];              else
471          finalSynthesisParameters.pSrc      = pSrc;                  pLFO3->setScriptFrequencyFactor(pNote->Override.PitchLFOFreq.Value, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
472            }
473          RTList<Event>::Iterator itCCEvent = pEngineChannel->pEvents->first();      }
474          RTList<Event>::Iterator itNoteEvent = pEngineChannel->pMIDIKeyInfo[MIDIKey].pEvents->first();  
475        float Voice::CalculateCutoffBase(uint8_t MIDIKeyVelocity) {
476          if (Skip) { // skip events that happened before this voice was triggered          float cutoff = pRegion->GetVelocityCutoff(MIDIKeyVelocity);
477              while (itCCEvent && itCCEvent->FragmentPos() <= Skip) ++itCCEvent;          if (pRegion->VCFKeyboardTracking) {
478              while (itNoteEvent && itNoteEvent->FragmentPos() <= Skip) ++itNoteEvent;              cutoff *= RTMath::CentsToFreqRatioUnlimited((MIDIKey() - pRegion->VCFKeyboardTrackingBreakpoint) * 100);
479          }          }
480            return cutoff;
481          uint i = Skip;      }
482          while (i < Samples) {  
483              int iSubFragmentEnd = RTMath::Min(i + CONFIG_DEFAULT_SUBFRAGMENT_SIZE, Samples);      // This is just called when the voice is triggered. On any subsequent cutoff
484        // controller changes ProcessCutoffEvent() is called instead.
485              // initialize all final synthesis parameters      float Voice::CalculateFinalCutoff(float cutoffBase) {
486              finalSynthesisParameters.fFinalPitch = PitchBase * PitchBend;          // if the selected filter type is an official GigaStudio filter type
487              #if CONFIG_PROCESS_MUTED_CHANNELS          // then we preserve the original (no matter how odd) historical GSt
488              fFinalVolume = this->Volume * this->CrossfadeVolume * (pEngineChannel->GetMute() ? 0 : pEngineChannel->GlobalVolume);          // behaviour identically; for our own filter types though we deviate to
489              #else          // more meaningful behaviours where appropriate
490              fFinalVolume = this->Volume * this->CrossfadeVolume * pEngineChannel->GlobalVolume;          const bool isGStFilter = isGStFilterType(pRegion->VCFType);
491              #endif  
492              fFinalCutoff    = VCFCutoffCtrl.fvalue;          // get current cutoff CC or velocity value (always 0..127)
493              fFinalResonance = VCFResonanceCtrl.fvalue;          float cvalue;
494            if (VCFCutoffCtrl.controller) {
495              // process MIDI control change and pitchbend events for this subfragment              cvalue = GetGigEngineChannel()->ControllerTable[VCFCutoffCtrl.controller];
496              processCCEvents(itCCEvent, iSubFragmentEnd);              if (pRegion->VCFCutoffControllerInvert) cvalue = 127 - cvalue;
497                if (isGStFilter) {
498              // process transition events (note on, note off & sustain pedal)                  // VCFVelocityScale in this case means "minimum cutoff" for GSt
499              processTransitionEvents(itNoteEvent, iSubFragmentEnd);                  if (cvalue < MinCutoff()) cvalue = MinCutoff();
500                } else {
501              // process envelope generators                  // for our own filter types we interpret "minimum cutoff"
502              switch (EG1.getSegmentType()) {                  // differently: GSt handles this as a simple hard limit with the
503                  case EGADSR::segment_lin:                  // consequence that a certain range of the controller is simply
504                      fFinalVolume *= EG1.processLin();                  // dead; so for our filter types we rather remap that to
505                      break;                  // restrain within the min_cutoff..127 range as well, but
506                  case EGADSR::segment_exp:                  // effectively spanned over the entire controller range (0..127)
507                      fFinalVolume *= EG1.processExp();                  // to avoid such a "dead" lower controller zone
508                      break;                  cvalue = MinCutoff() + (cvalue / 127.f) * float(127 - MinCutoff());
509                  case EGADSR::segment_end:              }
510                      fFinalVolume *= EG1.getLevel();          } else {
511                      break; // noop              // in case of velocity, VCFVelocityScale parameter is already
512              }              // handled on libgig side (so by calling
513              switch (EG2.getSegmentType()) {              // pRegion->GetVelocityCutoff(velo) in CalculateCutoffBase() above)
514                  case EGADSR::segment_lin:              cvalue = pRegion->VCFCutoff;
515                      fFinalCutoff *= EG2.processLin();          }
516                      break;  
517                  case EGADSR::segment_exp:          float fco = cutoffBase * cvalue;
518                      fFinalCutoff *= EG2.processExp();          if (fco > 127.0f) fco = 127.0f;
519                      break;  
520                  case EGADSR::segment_end:          // the filter implementations of the original GSt filter types take an
521                      fFinalCutoff *= EG2.getLevel();          // abstract cutoff parameter range of 0..127, ...
522                      break; // noop          if (isGStFilter)
523              }              return fco;
524              if (EG3.active()) finalSynthesisParameters.fFinalPitch *= RTMath::CentsToFreqRatio(EG3.render());  
525            // ... whereas our own filter types take a cutoff parameter in Hz, so
526              // process low frequency oscillators          // remap here 0 .. 127 [lin] -> 21 Hz .. 18 kHz [x^4] (center @2.2 kHz)
527              if (bLFO1Enabled) fFinalVolume *= pLFO1->render();          fco = (fco + 29.f) / (127.f + 29.f);
528              if (bLFO2Enabled) fFinalCutoff *= pLFO2->render();          fco = fco * fco * fco * fco * 18000.f;
529              if (bLFO3Enabled) finalSynthesisParameters.fFinalPitch *= RTMath::CentsToFreqRatio(pLFO3->render());          if (fco > 0.49f * pEngine->SampleRate)
530                fco = 0.49f * pEngine->SampleRate;
531              // if filter enabled then update filter coefficients          return fco;
532              if (SYNTHESIS_MODE_GET_FILTER(SynthesisMode)) {      }
533                  finalSynthesisParameters.filterLeft.SetParameters(fFinalCutoff, fFinalResonance, pEngine->SampleRate);  
534                  finalSynthesisParameters.filterRight.SetParameters(fFinalCutoff, fFinalResonance, pEngine->SampleRate);      uint8_t Voice::GetVCFCutoffCtrl() {
535              }          uint8_t ctrl;
536            switch (pRegion->VCFCutoffController) {
537                case ::gig::vcf_cutoff_ctrl_modwheel:
538                    ctrl = 1;
539                    break;
540                case ::gig::vcf_cutoff_ctrl_effect1:
541                    ctrl = 12;
542                    break;
543                case ::gig::vcf_cutoff_ctrl_effect2:
544                    ctrl = 13;
545                    break;
546                case ::gig::vcf_cutoff_ctrl_breath:
547                    ctrl = 2;
548                    break;
549                case ::gig::vcf_cutoff_ctrl_foot:
550                    ctrl = 4;
551                    break;
552                case ::gig::vcf_cutoff_ctrl_sustainpedal:
553                    ctrl = 64;
554                    break;
555                case ::gig::vcf_cutoff_ctrl_softpedal:
556                    ctrl = 67;
557                    break;
558                case ::gig::vcf_cutoff_ctrl_genpurpose7:
559                    ctrl = 82;
560                    break;
561                case ::gig::vcf_cutoff_ctrl_genpurpose8:
562                    ctrl = 83;
563                    break;
564                case ::gig::vcf_cutoff_ctrl_aftertouch:
565                    ctrl = CTRL_TABLE_IDX_AFTERTOUCH;
566                    break;
567                case ::gig::vcf_cutoff_ctrl_none:
568                default:
569                    ctrl = 0;
570                    break;
571            }
572    
573              // do we need resampling?          return ctrl;
574              const float __PLUS_ONE_CENT  = 1.000577789506554859250142541782224725466f;      }
             const float __MINUS_ONE_CENT = 0.9994225441413807496009516495583113737666f;  
             const bool bResamplingRequired = !(finalSynthesisParameters.fFinalPitch <= __PLUS_ONE_CENT &&  
                                                finalSynthesisParameters.fFinalPitch >= __MINUS_ONE_CENT);  
             SYNTHESIS_MODE_SET_INTERPOLATE(SynthesisMode, bResamplingRequired);  
   
             // prepare final synthesis parameters structure  
             finalSynthesisParameters.fFinalVolumeLeft  = fFinalVolume * PanLeft;  
             finalSynthesisParameters.fFinalVolumeRight = fFinalVolume * PanRight;  
             finalSynthesisParameters.uiToGo            = iSubFragmentEnd - i;  
   
             // render audio for one subfragment  
             RunSynthesisFunction(SynthesisMode, &finalSynthesisParameters, &loop);  
   
             // increment envelopes' positions  
             if (EG1.active()) {  
                 EG1.increment(1);  
                 if (!EG1.toStageEndLeft()) EG1.update(EGADSR::event_stage_end, finalSynthesisParameters.dPos, finalSynthesisParameters.fFinalPitch, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);  
             }  
             if (EG2.active()) {  
                 EG2.increment(1);  
                 if (!EG2.toStageEndLeft()) EG2.update(EGADSR::event_stage_end, finalSynthesisParameters.dPos, finalSynthesisParameters.fFinalPitch, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);  
             }  
             EG3.increment(1);  
             if (!EG3.toEndLeft()) EG3.update(); // neutralize envelope coefficient if end reached  
575    
576              i = iSubFragmentEnd;      uint8_t Voice::GetVCFResonanceCtrl() {
577            uint8_t ctrl;
578            switch (pRegion->VCFResonanceController) {
579                case ::gig::vcf_res_ctrl_genpurpose3:
580                    ctrl = 18;
581                    break;
582                case ::gig::vcf_res_ctrl_genpurpose4:
583                    ctrl = 19;
584                    break;
585                case ::gig::vcf_res_ctrl_genpurpose5:
586                    ctrl = 80;
587                    break;
588                case ::gig::vcf_res_ctrl_genpurpose6:
589                    ctrl = 81;
590                    break;
591                case ::gig::vcf_res_ctrl_none:
592                default:
593                    ctrl = 0;
594          }          }
     }  
595    
596      /**          return ctrl;
597       *  Immediately kill the voice. This method should not be used to kill      }
      *  a normal, active voice, because it doesn't take care of things like  
      *  fading down the volume level to avoid clicks and regular processing  
      *  until the kill event actually occured!  
      *  
      *  @see Kill()  
      */  
     void Voice::KillImmediately() {  
         if (DiskVoice && DiskStreamRef.State != Stream::state_unused) {  
             pDiskThread->OrderDeletionOfStream(&DiskStreamRef);  
         }  
         Reset();  
     }  
   
     /**  
      *  Kill the voice in regular sense. Let the voice render audio until  
      *  the kill event actually occured and then fade down the volume level  
      *  very quickly and let the voice die finally. Unlike a normal release  
      *  of a voice, a kill process cannot be cancalled and is therefore  
      *  usually used for voice stealing and key group conflicts.  
      *  
      *  @param itKillEvent - event which caused the voice to be killed  
      */  
     void Voice::Kill(Pool<Event>::Iterator& itKillEvent) {  
         #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  
598    
599          if (itTriggerEvent && itKillEvent->FragmentPos() <= itTriggerEvent->FragmentPos()) return;      void Voice::TriggerEG1(const EGInfo& egInfo, double velrelease, double velocityAttenuation, uint sampleRate, uint8_t velocity) {
600          this->itKillEvent = itKillEvent;          EG1.setStateOptions(
601                pRegion->EG1Options.AttackCancel,
602                pRegion->EG1Options.AttackHoldCancel,
603                pRegion->EG1Options.Decay1Cancel,
604                pRegion->EG1Options.Decay2Cancel,
605                pRegion->EG1Options.ReleaseCancel
606            );
607            EG1.trigger(pRegion->EG1PreAttack,
608                        (pNote && pNote->Override.Attack.isFinal()) ?
609                            pNote->Override.Attack.Value :
610                            RTMath::Max(pRegion->EG1Attack, 0.0316) * egInfo.Attack,
611                        pRegion->EG1Hold,
612                        (pNote && pNote->Override.Decay.isFinal()) ?
613                            pNote->Override.Decay.Value :
614                            pRegion->EG1Decay1 * egInfo.Decay * velrelease,
615                        (pNote && pNote->Override.Decay.isFinal()) ?
616                            pNote->Override.Decay.Value :
617                            pRegion->EG1Decay2 * egInfo.Decay * velrelease,
618                        pRegion->EG1InfiniteSustain,
619                        (pNote && pNote->Override.Sustain.Final) ?
620                            uint(pNote->Override.Sustain.Value * 1000.f) :
621                            pRegion->EG1Sustain * (pNote ? pNote->Override.Sustain.Value : 1.f),
622                        (pNote && pNote->Override.Release.isFinal()) ?
623                            pNote->Override.Release.Value :
624                            RTMath::Max(pRegion->EG1Release * velrelease, 0.014) * egInfo.Release,
625                        velocityAttenuation,
626                        sampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
627        }
628    
629        void Voice::TriggerEG2(const EGInfo& egInfo, double velrelease, double velocityAttenuation, uint sampleRate, uint8_t velocity) {
630            EG2.setStateOptions(
631                pRegion->EG2Options.AttackCancel,
632                pRegion->EG2Options.AttackHoldCancel,
633                pRegion->EG2Options.Decay1Cancel,
634                pRegion->EG2Options.Decay2Cancel,
635                pRegion->EG2Options.ReleaseCancel
636            );
637            EG2.trigger(uint(RgnInfo.EG2PreAttack),
638                        (pNote && pNote->Override.CutoffAttack.isFinal()) ?
639                            pNote->Override.CutoffAttack.Value :
640                            RgnInfo.EG2Attack * egInfo.Attack,
641                        false,
642                        (pNote && pNote->Override.CutoffDecay.isFinal()) ?
643                            pNote->Override.CutoffDecay.Value :
644                            RgnInfo.EG2Decay1 * egInfo.Decay * velrelease,
645                        (pNote && pNote->Override.CutoffDecay.isFinal()) ?
646                            pNote->Override.CutoffDecay.Value :
647                            RgnInfo.EG2Decay2 * egInfo.Decay * velrelease,
648                        RgnInfo.EG2InfiniteSustain,
649                        (pNote && pNote->Override.CutoffSustain.Final) ?
650                            uint(pNote->Override.CutoffSustain.Value * 1000.f) :
651                            uint(RgnInfo.EG2Sustain),
652                        (pNote && pNote->Override.CutoffRelease.isFinal()) ?
653                            pNote->Override.CutoffRelease.Value :
654                            RgnInfo.EG2Release * egInfo.Release * velrelease,
655                        velocityAttenuation,
656                        sampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
657        }
658    
659        void Voice::ProcessGroupEvent(RTList<Event>::Iterator& itEvent) {
660            dmsg(4,("Voice %p processGroupEvents event type=%d", (void*)this, itEvent->Type));
661    
662            // TODO: The SustainPedal condition could be wrong, maybe the
663            // check should be if this Voice is in release stage or is a
664            // release sample instead. Need to test this in GSt.
665            // -- Andreas
666            //
667            // Commented sustain pedal check out. I don't think voices of the same
668            // note should be stopped at all, because it doesn't sound naturally
669            // with a drumkit.
670            // -- Christian, 2013-01-08
671            if (itEvent->Param.Note.Key != HostKey() /*||
672                !GetGigEngineChannel()->SustainPedal*/) {
673                dmsg(4,("Voice %p - kill", (void*)this));
674    
675                // kill the voice fast
676                pEG1->enterFadeOutStage();
677            }
678        }
679    
680        void Voice::CalculateFadeOutCoeff(float FadeOutTime, float SampleRate) {
681            EG1.CalculateFadeOutCoeff(FadeOutTime, SampleRate);
682        }
683    
684        int Voice::CalculatePan(uint8_t pan) {
685            int p;
686            // Gst behaviour: -64 and 63 are special cases
687            if (RgnInfo.Pan == -64)     p = pan * 2 - 127;
688            else if (RgnInfo.Pan == 63) p = pan * 2;
689            else                        p = pan + RgnInfo.Pan;
690    
691            if (p < 0) return 0;
692            if (p > 127) return 127;
693            return p;
694        }
695    
696        release_trigger_t Voice::GetReleaseTriggerFlags() {
697            release_trigger_t flags =
698                (pRegion->NoNoteOffReleaseTrigger) ?
699                    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
700            switch (pRegion->SustainReleaseTrigger) {
701                case ::gig::sust_rel_trg_none:
702                    break;
703                case ::gig::sust_rel_trg_maxvelocity:
704                    flags |= release_trigger_sustain_maxvelocity;
705                    break;
706                case ::gig::sust_rel_trg_keyvelocity:
707                    flags |= release_trigger_sustain_keyvelocity;
708                    break;
709            }
710            return flags;
711      }      }
712    
713  }} // namespace LinuxSampler::gig  }} // namespace LinuxSampler::gig
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