/[svn]/linuxsampler/trunk/src/engines/gig/Voice.cpp
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revision 783 by persson, Sun Oct 2 14:40:52 2005 UTC revision 3721 by schoenebeck, Mon Jan 20 15:10:05 2020 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          Pos = pDimRgn->SampleStartOffset;          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          if (DiskVoice) { // voice to be streamed from disk          ri.VCFResonance  = pRegion->VCFResonance;
             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  
             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;  
120    
121              if (pDiskThread->OrderNewStream(&DiskStreamRef, pSample, MaxRAMPos, !RAMLoop) < 0) {          ri.ReleaseTriggerDecay = 0.01053 * (256 >> pRegion->ReleaseTriggerDecay);
                 dmsg(1,("Disk stream order failed!\n"));  
                 KillImmediately();  
                 return -1;  
             }  
             dmsg(4,("Disk voice launched (cached samples: %d, total Samples: %d, MaxRAMPos: %d, RAMLooping: %s)\n", cachedsamples, pSample->SamplesTotal, MaxRAMPos, (RAMLoop) ? "yes" : "no"));  
         }  
         else { // RAM only voice  
             MaxRAMPos = cachedsamples;  
             if (pSample->Loops) {  
                 RAMLoop           = true;  
                 loop.uiCyclesLeft = pSample->LoopPlayCount;  
             }  
             else RAMLoop = false;  
             dmsg(4,("RAM only voice launched (Looping: %s)\n", (RAMLoop) ? "yes" : "no"));  
         }  
122    
123            return ri;
124        }
125    
126          // calculate initial pitch value      Voice::InstrumentInfo Voice::GetInstrumentInfo() {
127          {          InstrumentInfo ii;
128              double pitchbasecents = pDimRgn->FineTune + (int) pEngine->ScaleTuning[MIDIKey % 12];          ii.FineTune = GetGigEngineChannel()->pInstrument->FineTune;
129              if (pDimRgn->PitchTrack) pitchbasecents += (MIDIKey - (int) pDimRgn->UnityNote) * 100;          ii.PitchbendRange = GetGigEngineChannel()->pInstrument->PitchbendRange;
             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;  
130    
131              // calculate influence of EG1 controller on EG1's parameters          return ii;
132              // (eg1attack is different from the others)      }
             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,  
                         pDimRgn->EG1Decay1 * eg1decay * velrelease,  
                         pDimRgn->EG1Decay2 * eg1decay * velrelease,  
                         pDimRgn->EG1InfiniteSustain,  
                         pDimRgn->EG1Sustain,  
                         pDimRgn->EG1Release * eg1release * velrelease,  
                         velocityAttenuation,  
                         pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);  
         }  
133    
134        double Voice::GetSampleAttenuation() {
135            return pRegion->SampleAttenuation;
136        }
137    
138        double Voice::GetVelocityAttenuation(uint8_t MIDIKeyVelocity) {
139            return pRegion->GetVelocityAttenuation(MIDIKeyVelocity);
140        }
141    
142          // setup EG 2 (VCF Cutoff EG)      double Voice::GetVelocityRelease(uint8_t MIDIKeyVelocity) {
143          {          return pRegion->GetVelocityRelease(MIDIKeyVelocity);
144              // get current value of EG2 controller      }
145              double eg2controllervalue;  
146              switch (pDimRgn->EG2Controller.type) {      void Voice::ProcessCCEvent(RTList<Event>::Iterator& itEvent) {
147                  case ::gig::eg2_ctrl_t::type_none: // no controller defined          if (itEvent->Type == Event::type_control_change && itEvent->Param.CC.Controller) { // if (valid) MIDI control change event
148                      eg2controllervalue = 0;              if (pRegion->AttenuationController.type == ::gig::attenuation_ctrl_t::type_controlchange &&
149                      break;                  itEvent->Param.CC.Controller == pRegion->AttenuationController.controller_number) {
150                  case ::gig::eg2_ctrl_t::type_channelaftertouch:                  CrossfadeSmoother.update(AbstractEngine::CrossfadeCurve[CrossfadeAttenuation(itEvent->Param.CC.Value)]);
                     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,  
                         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          // setup EG 3 (VCO EG)      uint8_t Voice::MinCutoff() const {
168          {          // If there's a cutoff controller defined then VCFVelocityScale means
169            double eg3depth = RTMath::CentsToFreqRatio(pDimRgn->EG3Depth);          // "minimum cutoff". If there is no MIDI controller defined for cutoff
170            EG3.trigger(eg3depth, pDimRgn->EG3Attack, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);          // 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          // setup LFO 1 (VCA LFO)          // if the selected filter type is an official GigaStudio filter type
183          {          // then we preserve the original (no matter how odd) historical GSt
184              uint16_t lfo1_internal_depth;          // behaviour identically; for our own filter types though we deviate to
185              switch (pDimRgn->LFO1Controller) {          // more meaningful behaviours where appropriate
186                  case ::gig::lfo1_ctrl_internal:          const bool isGStFilter = isGStFilterType(pRegion->VCFType);
187                      lfo1_internal_depth  = pDimRgn->LFO1InternalDepth;  
188                      pLFO1->ExtController = 0; // no external controller          if (pRegion->VCFCutoffControllerInvert) ccvalue = 127 - ccvalue;
189                      bLFO1Enabled         = (lfo1_internal_depth > 0);          // interpret "minimum cutoff" not simply as hard limit, rather
190                      break;          // restrain it to min_cutoff..127 range, but spanned / remapped over
191                  case ::gig::lfo1_ctrl_modwheel:          // the entire controller range (0..127) to avoid a "dead" lower
192                      lfo1_internal_depth  = 0;          // controller zone (that is to avoid a certain CC value range where
193                      pLFO1->ExtController = 1; // MIDI controller 1          // the controller would not change the cutoff frequency)
194                      bLFO1Enabled         = (pDimRgn->LFO1ControlDepth > 0);          ccvalue = MinCutoff() + (ccvalue / 127.f) * float(127 - MinCutoff());
195                      break;  
196                  case ::gig::lfo1_ctrl_breath:          float cutoff = CutoffBase * ccvalue;
197                      lfo1_internal_depth  = 0;          if (cutoff > 127.0f) cutoff = 127.0f;
198                      pLFO1->ExtController = 2; // MIDI controller 2  
199                      bLFO1Enabled         = (pDimRgn->LFO1ControlDepth > 0);          // the filter implementations of the original GSt filter types take an
200                      break;          // abstract cutoff parameter range of 0..127, whereas our own filter
201                  case ::gig::lfo1_ctrl_internal_modwheel:          // types take a cutoff parameter in Hz, so remap here:
202                      lfo1_internal_depth  = pDimRgn->LFO1InternalDepth;          // 0 .. 127 [lin] -> 21 Hz .. 18 kHz [x^4] (center @2.2 kHz)
203                      pLFO1->ExtController = 1; // MIDI controller 1          if (!isGStFilter) {
204                      bLFO1Enabled         = (lfo1_internal_depth > 0 || pDimRgn->LFO1ControlDepth > 0);              cutoff = (cutoff + 29.f) / (127.f + 29.f);
205                      break;              cutoff = cutoff * cutoff * cutoff * cutoff * 18000.f;
206                  case ::gig::lfo1_ctrl_internal_breath:              if (cutoff > 0.49f * pEngine->SampleRate)
207                      lfo1_internal_depth  = pDimRgn->LFO1InternalDepth;                  cutoff = 0.49f * pEngine->SampleRate;
                     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);  
208          }          }
209    
210            fFinalCutoff = VCFCutoffCtrl.fvalue = cutoff;
211        }
212    
213          // setup LFO 2 (VCF Cutoff LFO)      double Voice::CalculateCrossfadeVolume(uint8_t MIDIKeyVelocity) {
214          {          float crossfadeVolume;
215              uint16_t lfo2_internal_depth;          switch (pRegion->AttenuationController.type) {
216              switch (pDimRgn->LFO2Controller) {              case ::gig::attenuation_ctrl_t::type_channelaftertouch:
217                  case ::gig::lfo2_ctrl_internal:                  crossfadeVolume = Engine::CrossfadeCurve[CrossfadeAttenuation(GetGigEngineChannel()->ControllerTable[128])];
218                      lfo2_internal_depth  = pDimRgn->LFO2InternalDepth;                  break;
219                      pLFO2->ExtController = 0; // no external controller              case ::gig::attenuation_ctrl_t::type_velocity:
220                      bLFO2Enabled         = (lfo2_internal_depth > 0);                  crossfadeVolume = Engine::CrossfadeCurve[CrossfadeAttenuation(MIDIKeyVelocity)];
221                      break;                  break;
222                  case ::gig::lfo2_ctrl_modwheel:              case ::gig::attenuation_ctrl_t::type_controlchange: //FIXME: currently not sample accurate
223                      lfo2_internal_depth  = 0;                  crossfadeVolume = Engine::CrossfadeCurve[CrossfadeAttenuation(GetGigEngineChannel()->ControllerTable[pRegion->AttenuationController.controller_number])];
224                      pLFO2->ExtController = 1; // MIDI controller 1                  break;
225                      bLFO2Enabled         = (pDimRgn->LFO2ControlDepth > 0);              case ::gig::attenuation_ctrl_t::type_none: // no crossfade defined
226                      break;              default:
227                  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);  
228          }          }
229    
230            return crossfadeVolume;
231        }
232    
233          // setup LFO 3 (VCO LFO)      double Voice::GetEG1ControllerValue(uint8_t MIDIKeyVelocity) {
234          {          double eg1controllervalue = 0;
235              uint16_t lfo3_internal_depth;          switch (pRegion->EG1Controller.type) {
236              switch (pDimRgn->LFO3Controller) {              case ::gig::eg1_ctrl_t::type_none: // no controller defined
237                  case ::gig::lfo3_ctrl_internal:                  eg1controllervalue = 0;
238                      lfo3_internal_depth  = pDimRgn->LFO3InternalDepth;                  break;
239                      pLFO3->ExtController = 0; // no external controller              case ::gig::eg1_ctrl_t::type_channelaftertouch:
240                      bLFO3Enabled         = (lfo3_internal_depth > 0);                  eg1controllervalue = GetGigEngineChannel()->ControllerTable[128];
241                      break;                  break;
242                  case ::gig::lfo3_ctrl_modwheel:              case ::gig::eg1_ctrl_t::type_velocity:
243                      lfo3_internal_depth  = 0;                  eg1controllervalue = MIDIKeyVelocity;
244                      pLFO3->ExtController = 1; // MIDI controller 1                  break;
245                      bLFO3Enabled         = (pDimRgn->LFO3ControlDepth > 0);              case ::gig::eg1_ctrl_t::type_controlchange: // MIDI control change controller
246                      break;                  eg1controllervalue = GetGigEngineChannel()->ControllerTable[pRegion->EG1Controller.controller_number];
247                  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);  
248          }          }
249            if (pRegion->EG1ControllerInvert) eg1controllervalue = 127 - eg1controllervalue;
250    
251            return eg1controllervalue;
252        }
253    
254          #if CONFIG_FORCE_FILTER      Voice::EGInfo Voice::CalculateEG1ControllerInfluence(double eg1ControllerValue) {
255          const bool bUseFilter = true;          EGInfo eg;
256          #else // use filter only if instrument file told so          // (eg1attack is different from the others)
257          const bool bUseFilter = pDimRgn->VCFEnabled;          if (pRegion->EG1Attack < 1e-8 && // attack in gig == 0
258          #endif // CONFIG_FORCE_FILTER              (pRegion->EG1ControllerAttackInfluence == 0 ||
259          SYNTHESIS_MODE_SET_FILTER(SynthesisMode, bUseFilter);               eg1ControllerValue <= 10)) { // strange GSt special case
260          if (bUseFilter) {              eg.Attack = 0; // this will force the attack to be 0 in the call to EG1.trigger
261              #ifdef CONFIG_OVERRIDE_CUTOFF_CTRL          } else {
262              VCFCutoffCtrl.controller = CONFIG_OVERRIDE_CUTOFF_CTRL;              eg.Attack  = (pRegion->EG1ControllerAttackInfluence)  ?
263              #else // use the one defined in the instrument file                  1 + 0.031 * (double) (pRegion->EG1ControllerAttackInfluence == 1 ?
264              switch (pDimRgn->VCFCutoffController) {                                        1 : 1 << pRegion->EG1ControllerAttackInfluence) * eg1ControllerValue : 1.0;
265                  case ::gig::vcf_cutoff_ctrl_modwheel:          }
266                      VCFCutoffCtrl.controller = 1;          eg.Decay   = (pRegion->EG1ControllerDecayInfluence)   ? 1 + 0.00775 * (double) (1 << pRegion->EG1ControllerDecayInfluence)   * eg1ControllerValue : 1.0;
267                      break;          eg.Release = (pRegion->EG1ControllerReleaseInfluence) ? 1 + 0.00775 * (double) (1 << pRegion->EG1ControllerReleaseInfluence) * eg1ControllerValue : 1.0;
268                  case ::gig::vcf_cutoff_ctrl_effect1:  
269                      VCFCutoffCtrl.controller = 12;          return eg;
270                      break;      }
271                  case ::gig::vcf_cutoff_ctrl_effect2:  
272                      VCFCutoffCtrl.controller = 13;      double Voice::GetEG2ControllerValue(uint8_t MIDIKeyVelocity) {
273                      break;          double eg2controllervalue = 0;
274                  case ::gig::vcf_cutoff_ctrl_breath:          switch (pRegion->EG2Controller.type) {
275                      VCFCutoffCtrl.controller = 2;              case ::gig::eg2_ctrl_t::type_none: // no controller defined
276                      break;                  eg2controllervalue = 0;
277                  case ::gig::vcf_cutoff_ctrl_foot:                  break;
278                      VCFCutoffCtrl.controller = 4;              case ::gig::eg2_ctrl_t::type_channelaftertouch:
279                      break;                  eg2controllervalue = GetGigEngineChannel()->ControllerTable[128];
280                  case ::gig::vcf_cutoff_ctrl_sustainpedal:                  break;
281                      VCFCutoffCtrl.controller = 64;              case ::gig::eg2_ctrl_t::type_velocity:
282                      break;                  eg2controllervalue = MIDIKeyVelocity;
283                  case ::gig::vcf_cutoff_ctrl_softpedal:                  break;
284                      VCFCutoffCtrl.controller = 67;              case ::gig::eg2_ctrl_t::type_controlchange: // MIDI control change controller
285                      break;                  eg2controllervalue = GetGigEngineChannel()->ControllerTable[pRegion->EG2Controller.controller_number];
286                  case ::gig::vcf_cutoff_ctrl_genpurpose7:                  break;
287                      VCFCutoffCtrl.controller = 82;          }
288                      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  
289    
290              #ifdef CONFIG_OVERRIDE_RESONANCE_CTRL          return eg2controllervalue;
291              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  
292    
293              #ifndef CONFIG_OVERRIDE_FILTER_TYPE      Voice::EGInfo Voice::CalculateEG2ControllerInfluence(double eg2ControllerValue) {
294              finalSynthesisParameters.filterLeft.SetType(pDimRgn->VCFType);          EGInfo eg;
295              finalSynthesisParameters.filterRight.SetType(pDimRgn->VCFType);          eg.Attack  = (pRegion->EG2ControllerAttackInfluence)  ? 1 + 0.00775 * (double) (1 << pRegion->EG2ControllerAttackInfluence)  * eg2ControllerValue : 1.0;
296              #else // override filter type          eg.Decay   = (pRegion->EG2ControllerDecayInfluence)   ? 1 + 0.00775 * (double) (1 << pRegion->EG2ControllerDecayInfluence)   * eg2ControllerValue : 1.0;
297              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;  
298    
299              int cvalue;          return eg;
300              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)  
301    
302              VCFCutoffCtrl.fvalue    = cutoff - CONFIG_FILTER_CUTOFF_MIN;      void Voice::InitLFO1() {
303              VCFResonanceCtrl.fvalue = resonance;          uint16_t lfo1_internal_depth;
304          }          switch (pRegion->LFO1Controller) {
305          else {              case ::gig::lfo1_ctrl_internal:
306              VCFCutoffCtrl.controller    = 0;                  lfo1_internal_depth  = pRegion->LFO1InternalDepth;
307              VCFResonanceCtrl.controller = 0;                  pLFO1->ExtController = 0; // no external controller
308          }                  bLFO1Enabled         = (lfo1_internal_depth > 0);
309                    break;
310          return 0; // success              case ::gig::lfo1_ctrl_modwheel:
311      }                  lfo1_internal_depth  = 0;
312                    pLFO1->ExtController = 1; // MIDI controller 1
313      /**                  bLFO1Enabled         = (pRegion->LFO1ControlDepth > 0);
314       *  Renders the audio data for this voice for the current audio fragment.                  break;
315       *  The sample input data can either come from RAM (cached sample or sample              case ::gig::lfo1_ctrl_breath:
316       *  part) or directly from disk. The output signal will be rendered by                  lfo1_internal_depth  = 0;
317       *  resampling / interpolation. If this voice is a disk streaming voice and                  pLFO1->ExtController = 2; // MIDI controller 2
318       *  the voice completely played back the cached RAM part of the sample, it                  bLFO1Enabled         = (pRegion->LFO1ControlDepth > 0);
319       *  will automatically switch to disk playback for the next RenderAudio()                  break;
320       *  call.              case ::gig::lfo1_ctrl_internal_modwheel:
321       *                  lfo1_internal_depth  = pRegion->LFO1InternalDepth;
322       *  @param Samples - number of samples to be rendered in this audio fragment cycle                  pLFO1->ExtController = 1; // MIDI controller 1
323       */                  bLFO1Enabled         = (lfo1_internal_depth > 0 || pRegion->LFO1ControlDepth > 0);
324      void Voice::Render(uint Samples) {                  break;
325                case ::gig::lfo1_ctrl_internal_breath:
326          // select default values for synthesis mode bits                  lfo1_internal_depth  = pRegion->LFO1InternalDepth;
327          SYNTHESIS_MODE_SET_LOOP(SynthesisMode, false);                  pLFO1->ExtController = 2; // MIDI controller 2
328                    bLFO1Enabled         = (lfo1_internal_depth > 0 || pRegion->LFO1ControlDepth > 0);
329          switch (this->PlaybackState) {                  break;
330                default:
331              case playback_state_init:                  lfo1_internal_depth  = 0;
332                  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
333                  // no break - continue with playback_state_ram                  bLFO1Enabled         = false;
334            }
335              case playback_state_ram: {          if (bLFO1Enabled) {
336                      if (RAMLoop) SYNTHESIS_MODE_SET_LOOP(SynthesisMode, true); // enable looping              pLFO1->trigger(fromGigLfoWave(pRegion->LFO1WaveForm),
337                               pRegion->LFO1Frequency,
338                      // render current fragment                             pRegion->LFO1Phase,
339                      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
340                               lfo1_internal_depth,
341                      if (DiskVoice) {                             pRegion->LFO1ControlDepth,
342                          // check if we reached the allowed limit of the sample RAM cache                             pRegion->LFO1FlipPhase,
343                          if (finalSynthesisParameters.dPos > MaxRAMPos) {                             pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
344                              dmsg(5,("Voice: switching to disk playback (Pos=%f)\n", finalSynthesisParameters.dPos));              pLFO1->updateByMIDICtrlValue(pLFO1->ExtController ? GetGigEngineChannel()->ControllerTable[pLFO1->ExtController] : 0);
345                              this->PlaybackState = playback_state_disk;              pLFO1->setScriptDepthFactor(
346                          }                  pNote->Override.AmpLFODepth.Value,
347                      } else if (finalSynthesisParameters.dPos >= pSample->GetCache().Size / pSample->FrameSize) {                  pNote->Override.AmpLFODepth.Final
348                          this->PlaybackState = playback_state_end;              );
349                      }              if (pNote->Override.AmpLFOFreq.isFinal())
350                  }                  pLFO1->setScriptFrequencyFinal(
351                  break;                      pNote->Override.AmpLFOFreq.Value, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE
352                    );
353              case playback_state_disk: {              else
354                      if (!DiskStreamRef.pStream) {                  pLFO1->setScriptFrequencyFactor(
355                          // check if the disk thread created our ordered disk stream in the meantime                      pNote->Override.AmpLFOFreq.Value, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE
356                          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);  
             }  
357          }          }
358      }      }
359    
360      /**      void Voice::InitLFO2() {
361       * Process given list of MIDI control change and pitch bend events for          uint16_t lfo2_internal_depth;
362       * the given time.          switch (pRegion->LFO2Controller) {
363       *              case ::gig::lfo2_ctrl_internal:
364       * @param itEvent - iterator pointing to the next event to be processed                  lfo2_internal_depth  = pRegion->LFO2InternalDepth;
365       * @param End     - youngest time stamp where processing should be stopped                  pLFO2->ExtController = 0; // no external controller
366       */                  bLFO2Enabled         = (lfo2_internal_depth > 0);
367      void Voice::processCCEvents(RTList<Event>::Iterator& itEvent, uint End) {                  break;
368          for (; itEvent && itEvent->FragmentPos() <= End; ++itEvent) {              case ::gig::lfo2_ctrl_modwheel:
369              if (itEvent->Type == Event::type_control_change &&                  lfo2_internal_depth  = 0;
370                  itEvent->Param.CC.Controller) { // if (valid) MIDI control change event                  pLFO2->ExtController = 1; // MIDI controller 1
371                  if (itEvent->Param.CC.Controller == VCFCutoffCtrl.controller) {                  bLFO2Enabled         = (pRegion->LFO2ControlDepth > 0);
372                      processCutoffEvent(itEvent);                  break;
373                  }              case ::gig::lfo2_ctrl_foot:
374                  if (itEvent->Param.CC.Controller == VCFResonanceCtrl.controller) {                  lfo2_internal_depth  = 0;
375                      processResonanceEvent(itEvent);                  pLFO2->ExtController = 4; // MIDI controller 4
376                  }                  bLFO2Enabled         = (pRegion->LFO2ControlDepth > 0);
377                  if (itEvent->Param.CC.Controller == pLFO1->ExtController) {                  break;
378                      pLFO1->update(itEvent->Param.CC.Value);              case ::gig::lfo2_ctrl_internal_modwheel:
379                  }                  lfo2_internal_depth  = pRegion->LFO2InternalDepth;
380                  if (itEvent->Param.CC.Controller == pLFO2->ExtController) {                  pLFO2->ExtController = 1; // MIDI controller 1
381                      pLFO2->update(itEvent->Param.CC.Value);                  bLFO2Enabled         = (lfo2_internal_depth > 0 || pRegion->LFO2ControlDepth > 0);
382                  }                  break;
383                  if (itEvent->Param.CC.Controller == pLFO3->ExtController) {              case ::gig::lfo2_ctrl_internal_foot:
384                      pLFO3->update(itEvent->Param.CC.Value);                  lfo2_internal_depth  = pRegion->LFO2InternalDepth;
385                  }                  pLFO2->ExtController = 4; // MIDI controller 4
386                  if (pDimRgn->AttenuationController.type == ::gig::attenuation_ctrl_t::type_controlchange &&                  bLFO2Enabled         = (lfo2_internal_depth > 0 || pRegion->LFO2ControlDepth > 0);
387                      itEvent->Param.CC.Controller == pDimRgn->AttenuationController.controller_number) {                  break;
388                      processCrossFadeEvent(itEvent);              default:
389                  }                  lfo2_internal_depth  = 0;
390              } else if (itEvent->Type == Event::type_pitchbend) { // if pitch bend event                  pLFO2->ExtController = 0; // no external controller
391                  processPitchEvent(itEvent);                  bLFO2Enabled         = false;
392              }          }
393            if (bLFO2Enabled) {
394                pLFO2->trigger(fromGigLfoWave(pRegion->LFO2WaveForm),
395                               pRegion->LFO2Frequency,
396                               pRegion->LFO2Phase,
397                               LFO::start_level_mid, // see https://sourceforge.net/p/linuxsampler/mailman/linuxsampler-devel/thread/2189307.cNP0Xbctxq%40silver/#msg36774029
398                               lfo2_internal_depth,
399                               pRegion->LFO2ControlDepth,
400                               pRegion->LFO2FlipPhase,
401                               pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
402                pLFO2->updateByMIDICtrlValue(pLFO2->ExtController ? GetGigEngineChannel()->ControllerTable[pLFO2->ExtController] : 0);
403                pLFO2->setScriptDepthFactor(
404                    pNote->Override.CutoffLFODepth.Value,
405                    pNote->Override.CutoffLFODepth.Final
406                );
407                if (pNote->Override.CutoffLFOFreq.isFinal())
408                    pLFO2->setScriptFrequencyFinal(pNote->Override.CutoffLFOFreq.Value, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
409                else
410                    pLFO2->setScriptFrequencyFactor(pNote->Override.CutoffLFOFreq.Value, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
411          }          }
412      }      }
413    
414      void Voice::processPitchEvent(RTList<Event>::Iterator& itEvent) {      void Voice::InitLFO3() {
415          const float pitch = RTMath::CentsToFreqRatio(((double) itEvent->Param.Pitch.Pitch / 8192.0) * 200.0); // +-two semitones = +-200 cents          uint16_t lfo3_internal_depth;
416          finalSynthesisParameters.fFinalPitch *= pitch;          switch (pRegion->LFO3Controller) {
417          PitchBend = pitch;              case ::gig::lfo3_ctrl_internal:
418      }                  lfo3_internal_depth  = pRegion->LFO3InternalDepth;
419                    pLFO3->ExtController = 0; // no external controller
420      void Voice::processCrossFadeEvent(RTList<Event>::Iterator& itEvent) {                  bLFO3Enabled         = (lfo3_internal_depth > 0);
421          CrossfadeVolume = CrossfadeAttenuation(itEvent->Param.CC.Value);                  break;
422          #if CONFIG_PROCESS_MUTED_CHANNELS              case ::gig::lfo3_ctrl_modwheel:
423          const float effectiveVolume = CrossfadeVolume * Volume * (pEngineChannel->GetMute() ? 0 : pEngineChannel->GlobalVolume);                  lfo3_internal_depth  = 0;
424          #else                  pLFO3->ExtController = 1; // MIDI controller 1
425          const float effectiveVolume = CrossfadeVolume * Volume * pEngineChannel->GlobalVolume;                  bLFO3Enabled         = (pRegion->LFO3ControlDepth > 0);
426          #endif                  break;
427          fFinalVolume = effectiveVolume;              case ::gig::lfo3_ctrl_aftertouch:
428      }                  lfo3_internal_depth  = 0;
429                    pLFO3->ExtController = CTRL_TABLE_IDX_AFTERTOUCH;
430      void Voice::processCutoffEvent(RTList<Event>::Iterator& itEvent) {                  bLFO3Enabled         = true;
431          int ccvalue = itEvent->Param.CC.Value;                  break;
432          if (VCFCutoffCtrl.value == ccvalue) return;              case ::gig::lfo3_ctrl_internal_modwheel:
433          VCFCutoffCtrl.value == ccvalue;                  lfo3_internal_depth  = pRegion->LFO3InternalDepth;
434          if (pDimRgn->VCFCutoffControllerInvert)  ccvalue = 127 - ccvalue;                  pLFO3->ExtController = 1; // MIDI controller 1
435          if (ccvalue < pDimRgn->VCFVelocityScale) ccvalue = pDimRgn->VCFVelocityScale;                  bLFO3Enabled         = (lfo3_internal_depth > 0 || pRegion->LFO3ControlDepth > 0);
436          float cutoff = CutoffBase * float(ccvalue) * 0.00787402f; // (1 / 127)                  break;
437          if (cutoff > 1.0) cutoff = 1.0;              case ::gig::lfo3_ctrl_internal_aftertouch:
438          cutoff = exp(cutoff * FILTER_CUTOFF_COEFF) * CONFIG_FILTER_CUTOFF_MIN - CONFIG_FILTER_CUTOFF_MIN;                  lfo3_internal_depth  = pRegion->LFO3InternalDepth;
439          VCFCutoffCtrl.fvalue = cutoff; // needed for initialization of fFinalCutoff next time                  pLFO3->ExtController = CTRL_TABLE_IDX_AFTERTOUCH;
440          fFinalCutoff = cutoff;                  bLFO3Enabled         = (lfo3_internal_depth > 0 || pRegion->LFO3ControlDepth > 0);
441      }                  break;
442                default:
443      void Voice::processResonanceEvent(RTList<Event>::Iterator& itEvent) {                  lfo3_internal_depth  = 0;
444          // convert absolute controller value to differential                  pLFO3->ExtController = 0; // no external controller
445          const int ctrldelta = itEvent->Param.CC.Value - VCFResonanceCtrl.value;                  bLFO3Enabled         = false;
446          VCFResonanceCtrl.value = itEvent->Param.CC.Value;          }
447          const float resonancedelta = (float) ctrldelta * 0.00787f; // 0.0..1.0          if (bLFO3Enabled) {
448          fFinalResonance += resonancedelta;              pLFO3->trigger(fromGigLfoWave(pRegion->LFO3WaveForm),
449          // needed for initialization of parameter                             pRegion->LFO3Frequency,
450          VCFResonanceCtrl.fvalue = itEvent->Param.CC.Value * 0.00787f;                             pRegion->LFO3Phase,
451      }                             LFO::start_level_max, // see https://sourceforge.net/p/linuxsampler/mailman/linuxsampler-devel/thread/2189307.cNP0Xbctxq%40silver/#msg36774029
452                               lfo3_internal_depth,
453      /**                             pRegion->LFO3ControlDepth,
454       *  Synthesizes the current audio fragment for this voice.                             pRegion->LFO3FlipPhase,
455       *                             pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
456       *  @param Samples - number of sample points to be rendered in this audio              pLFO3->updateByMIDICtrlValue(pLFO3->ExtController ? GetGigEngineChannel()->ControllerTable[pLFO3->ExtController] : 0);
457       *                   fragment cycle              pLFO3->setScriptDepthFactor(
458       *  @param pSrc    - pointer to input sample data                  pNote->Override.PitchLFODepth.Value,
459       *  @param Skip    - number of sample points to skip in output buffer                  pNote->Override.PitchLFODepth.Final
460       */              );
461      void Voice::Synthesize(uint Samples, sample_t* pSrc, uint Skip) {              if (pNote->Override.PitchLFOFreq.isFinal())
462          finalSynthesisParameters.pOutLeft  = &pEngineChannel->pOutputLeft[Skip];                  pLFO3->setScriptFrequencyFinal(pNote->Override.PitchLFOFreq.Value, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
463          finalSynthesisParameters.pOutRight = &pEngineChannel->pOutputRight[Skip];              else
464          finalSynthesisParameters.pSrc      = pSrc;                  pLFO3->setScriptFrequencyFactor(pNote->Override.PitchLFOFreq.Value, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
465            }
466          RTList<Event>::Iterator itCCEvent = pEngineChannel->pEvents->first();      }
467          RTList<Event>::Iterator itNoteEvent = pEngineChannel->pMIDIKeyInfo[MIDIKey].pEvents->first();  
468        float Voice::CalculateCutoffBase(uint8_t MIDIKeyVelocity) {
469          if (Skip) { // skip events that happened before this voice was triggered          float cutoff = pRegion->GetVelocityCutoff(MIDIKeyVelocity);
470              while (itCCEvent && itCCEvent->FragmentPos() <= Skip) ++itCCEvent;          if (pRegion->VCFKeyboardTracking) {
471              while (itNoteEvent && itNoteEvent->FragmentPos() <= Skip) ++itNoteEvent;              cutoff *= RTMath::CentsToFreqRatioUnlimited((MIDIKey() - pRegion->VCFKeyboardTrackingBreakpoint) * 100);
472          }          }
473            return cutoff;
474          uint i = Skip;      }
475          while (i < Samples) {  
476              int iSubFragmentEnd = RTMath::Min(i + CONFIG_DEFAULT_SUBFRAGMENT_SIZE, Samples);      // This is just called when the voice is triggered. On any subsequent cutoff
477        // controller changes ProcessCutoffEvent() is called instead.
478              // initialize all final synthesis parameters      float Voice::CalculateFinalCutoff(float cutoffBase) {
479              finalSynthesisParameters.fFinalPitch = PitchBase * PitchBend;          // if the selected filter type is an official GigaStudio filter type
480              #if CONFIG_PROCESS_MUTED_CHANNELS          // then we preserve the original (no matter how odd) historical GSt
481              fFinalVolume = this->Volume * this->CrossfadeVolume * (pEngineChannel->GetMute() ? 0 : pEngineChannel->GlobalVolume);          // behaviour identically; for our own filter types though we deviate to
482              #else          // more meaningful behaviours where appropriate
483              fFinalVolume = this->Volume * this->CrossfadeVolume * pEngineChannel->GlobalVolume;          const bool isGStFilter = isGStFilterType(pRegion->VCFType);
484              #endif  
485              fFinalCutoff    = VCFCutoffCtrl.fvalue;          // get current cutoff CC or velocity value (always 0..127)
486              fFinalResonance = VCFResonanceCtrl.fvalue;          float cvalue;
487            if (VCFCutoffCtrl.controller) {
488              // process MIDI control change and pitchbend events for this subfragment              cvalue = GetGigEngineChannel()->ControllerTable[VCFCutoffCtrl.controller];
489              processCCEvents(itCCEvent, iSubFragmentEnd);              if (pRegion->VCFCutoffControllerInvert) cvalue = 127 - cvalue;
490                if (isGStFilter) {
491              // process transition events (note on, note off & sustain pedal)                  // VCFVelocityScale in this case means "minimum cutoff" for GSt
492              processTransitionEvents(itNoteEvent, iSubFragmentEnd);                  if (cvalue < MinCutoff()) cvalue = MinCutoff();
493                } else {
494              // process envelope generators                  // for our own filter types we interpret "minimum cutoff"
495              switch (EG1.getSegmentType()) {                  // differently: GSt handles this as a simple hard limit with the
496                  case EGADSR::segment_lin:                  // consequence that a certain range of the controller is simply
497                      fFinalVolume *= EG1.processLin();                  // dead; so for our filter types we rather remap that to
498                      break;                  // restrain within the min_cutoff..127 range as well, but
499                  case EGADSR::segment_exp:                  // effectively spanned over the entire controller range (0..127)
500                      fFinalVolume *= EG1.processExp();                  // to avoid such a "dead" lower controller zone
501                      break;                  cvalue = MinCutoff() + (cvalue / 127.f) * float(127 - MinCutoff());
502                  case EGADSR::segment_end:              }
503                      fFinalVolume *= EG1.getLevel();          } else {
504                      break; // noop              // in case of velocity, VCFVelocityScale parameter is already
505              }              // handled on libgig side (so by calling
506              switch (EG2.getSegmentType()) {              // pRegion->GetVelocityCutoff(velo) in CalculateCutoffBase() above)
507                  case EGADSR::segment_lin:              cvalue = pRegion->VCFCutoff;
508                      fFinalCutoff *= EG2.processLin();          }
509                      break;  
510                  case EGADSR::segment_exp:          float fco = cutoffBase * cvalue;
511                      fFinalCutoff *= EG2.processExp();          if (fco > 127.0f) fco = 127.0f;
512                      break;  
513                  case EGADSR::segment_end:          // the filter implementations of the original GSt filter types take an
514                      fFinalCutoff *= EG2.getLevel();          // abstract cutoff parameter range of 0..127, ...
515                      break; // noop          if (isGStFilter)
516              }              return fco;
517              if (EG3.active()) finalSynthesisParameters.fFinalPitch *= RTMath::CentsToFreqRatio(EG3.render());  
518            // ... whereas our own filter types take a cutoff parameter in Hz, so
519              // process low frequency oscillators          // remap here 0 .. 127 [lin] -> 21 Hz .. 18 kHz [x^4] (center @2.2 kHz)
520              if (bLFO1Enabled) fFinalVolume *= pLFO1->render();          fco = (fco + 29.f) / (127.f + 29.f);
521              if (bLFO2Enabled) fFinalCutoff *= pLFO2->render();          fco = fco * fco * fco * fco * 18000.f;
522              if (bLFO3Enabled) finalSynthesisParameters.fFinalPitch *= RTMath::CentsToFreqRatio(pLFO3->render());          if (fco > 0.49f * pEngine->SampleRate)
523                fco = 0.49f * pEngine->SampleRate;
524              // if filter enabled then update filter coefficients          return fco;
525              if (SYNTHESIS_MODE_GET_FILTER(SynthesisMode)) {      }
526                  finalSynthesisParameters.filterLeft.SetParameters(fFinalCutoff, fFinalResonance, pEngine->SampleRate);  
527                  finalSynthesisParameters.filterRight.SetParameters(fFinalCutoff, fFinalResonance, pEngine->SampleRate);      uint8_t Voice::GetVCFCutoffCtrl() {
528              }          uint8_t ctrl;
529            switch (pRegion->VCFCutoffController) {
530              // do we need resampling?              case ::gig::vcf_cutoff_ctrl_modwheel:
531              const float __PLUS_ONE_CENT  = 1.000577789506554859250142541782224725466f;                  ctrl = 1;
532              const float __MINUS_ONE_CENT = 0.9994225441413807496009516495583113737666f;                  break;
533              const bool bResamplingRequired = !(finalSynthesisParameters.fFinalPitch <= __PLUS_ONE_CENT &&              case ::gig::vcf_cutoff_ctrl_effect1:
534                                                 finalSynthesisParameters.fFinalPitch >= __MINUS_ONE_CENT);                  ctrl = 12;
535              SYNTHESIS_MODE_SET_INTERPOLATE(SynthesisMode, bResamplingRequired);                  break;
536                case ::gig::vcf_cutoff_ctrl_effect2:
537              // prepare final synthesis parameters structure                  ctrl = 13;
538              finalSynthesisParameters.fFinalVolumeLeft  = fFinalVolume * PanLeft;                  break;
539              finalSynthesisParameters.fFinalVolumeRight = fFinalVolume * PanRight;              case ::gig::vcf_cutoff_ctrl_breath:
540              finalSynthesisParameters.uiToGo            = iSubFragmentEnd - i;                  ctrl = 2;
541                    break;
542              // render audio for one subfragment              case ::gig::vcf_cutoff_ctrl_foot:
543              RunSynthesisFunction(SynthesisMode, &finalSynthesisParameters, &loop);                  ctrl = 4;
544                    break;
545              const double newPos = Pos + (iSubFragmentEnd - i) * finalSynthesisParameters.fFinalPitch;              case ::gig::vcf_cutoff_ctrl_sustainpedal:
546                    ctrl = 64;
547              // increment envelopes' positions                  break;
548              if (EG1.active()) {              case ::gig::vcf_cutoff_ctrl_softpedal:
549                    ctrl = 67;
550                  // 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                  break;
551                  if (pSample->Loops && Pos <= pSample->LoopStart && pSample->LoopStart < newPos) {              case ::gig::vcf_cutoff_ctrl_genpurpose7:
552                      EG1.update(EGADSR::event_hold_end, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);                  ctrl = 82;
553                  }                  break;
554                case ::gig::vcf_cutoff_ctrl_genpurpose8:
555                    ctrl = 83;
556                    break;
557                case ::gig::vcf_cutoff_ctrl_aftertouch:
558                    ctrl = CTRL_TABLE_IDX_AFTERTOUCH;
559                    break;
560                case ::gig::vcf_cutoff_ctrl_none:
561                default:
562                    ctrl = 0;
563                    break;
564            }
565    
566                  EG1.increment(1);          return ctrl;
567                  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  
568    
569              Pos = newPos;      uint8_t Voice::GetVCFResonanceCtrl() {
570              i = iSubFragmentEnd;          uint8_t ctrl;
571            switch (pRegion->VCFResonanceController) {
572                case ::gig::vcf_res_ctrl_genpurpose3:
573                    ctrl = 18;
574                    break;
575                case ::gig::vcf_res_ctrl_genpurpose4:
576                    ctrl = 19;
577                    break;
578                case ::gig::vcf_res_ctrl_genpurpose5:
579                    ctrl = 80;
580                    break;
581                case ::gig::vcf_res_ctrl_genpurpose6:
582                    ctrl = 81;
583                    break;
584                case ::gig::vcf_res_ctrl_none:
585                default:
586                    ctrl = 0;
587          }          }
     }  
588    
589      /**          return ctrl;
590       *  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  
591    
592          if (itTriggerEvent && itKillEvent->FragmentPos() <= itTriggerEvent->FragmentPos()) return;      void Voice::TriggerEG1(const EGInfo& egInfo, double velrelease, double velocityAttenuation, uint sampleRate, uint8_t velocity) {
593          this->itKillEvent = itKillEvent;          EG1.setStateOptions(
594                pRegion->EG1Options.AttackCancel,
595                pRegion->EG1Options.AttackHoldCancel,
596                pRegion->EG1Options.Decay1Cancel,
597                pRegion->EG1Options.Decay2Cancel,
598                pRegion->EG1Options.ReleaseCancel
599            );
600            EG1.trigger(pRegion->EG1PreAttack,
601                        (pNote && pNote->Override.Attack.isFinal()) ?
602                            pNote->Override.Attack.Value :
603                            RTMath::Max(pRegion->EG1Attack, 0.0316) * egInfo.Attack,
604                        pRegion->EG1Hold,
605                        (pNote && pNote->Override.Decay.isFinal()) ?
606                            pNote->Override.Decay.Value :
607                            pRegion->EG1Decay1 * egInfo.Decay * velrelease,
608                        (pNote && pNote->Override.Decay.isFinal()) ?
609                            pNote->Override.Decay.Value :
610                            pRegion->EG1Decay2 * egInfo.Decay * velrelease,
611                        pRegion->EG1InfiniteSustain,
612                        (pNote && pNote->Override.Sustain.Final) ?
613                            uint(pNote->Override.Sustain.Value * 1000.f) :
614                            pRegion->EG1Sustain * (pNote ? pNote->Override.Sustain.Value : 1.f),
615                        (pNote && pNote->Override.Release.isFinal()) ?
616                            pNote->Override.Release.Value :
617                            RTMath::Max(pRegion->EG1Release * velrelease, 0.014) * egInfo.Release,
618                        velocityAttenuation,
619                        sampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
620        }
621    
622        void Voice::TriggerEG2(const EGInfo& egInfo, double velrelease, double velocityAttenuation, uint sampleRate, uint8_t velocity) {
623            EG2.setStateOptions(
624                pRegion->EG2Options.AttackCancel,
625                pRegion->EG2Options.AttackHoldCancel,
626                pRegion->EG2Options.Decay1Cancel,
627                pRegion->EG2Options.Decay2Cancel,
628                pRegion->EG2Options.ReleaseCancel
629            );
630            EG2.trigger(uint(RgnInfo.EG2PreAttack),
631                        (pNote && pNote->Override.CutoffAttack.isFinal()) ?
632                            pNote->Override.CutoffAttack.Value :
633                            RgnInfo.EG2Attack * egInfo.Attack,
634                        false,
635                        (pNote && pNote->Override.CutoffDecay.isFinal()) ?
636                            pNote->Override.CutoffDecay.Value :
637                            RgnInfo.EG2Decay1 * egInfo.Decay * velrelease,
638                        (pNote && pNote->Override.CutoffDecay.isFinal()) ?
639                            pNote->Override.CutoffDecay.Value :
640                            RgnInfo.EG2Decay2 * egInfo.Decay * velrelease,
641                        RgnInfo.EG2InfiniteSustain,
642                        (pNote && pNote->Override.CutoffSustain.Final) ?
643                            uint(pNote->Override.CutoffSustain.Value * 1000.f) :
644                            uint(RgnInfo.EG2Sustain),
645                        (pNote && pNote->Override.CutoffRelease.isFinal()) ?
646                            pNote->Override.CutoffRelease.Value :
647                            RgnInfo.EG2Release * egInfo.Release * velrelease,
648                        velocityAttenuation,
649                        sampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
650        }
651    
652        void Voice::ProcessGroupEvent(RTList<Event>::Iterator& itEvent) {
653            dmsg(4,("Voice %p processGroupEvents event type=%d", (void*)this, itEvent->Type));
654    
655            // TODO: The SustainPedal condition could be wrong, maybe the
656            // check should be if this Voice is in release stage or is a
657            // release sample instead. Need to test this in GSt.
658            // -- Andreas
659            //
660            // Commented sustain pedal check out. I don't think voices of the same
661            // note should be stopped at all, because it doesn't sound naturally
662            // with a drumkit.
663            // -- Christian, 2013-01-08
664            if (itEvent->Param.Note.Key != HostKey() /*||
665                !GetGigEngineChannel()->SustainPedal*/) {
666                dmsg(4,("Voice %p - kill", (void*)this));
667    
668                // kill the voice fast
669                pEG1->enterFadeOutStage();
670            }
671        }
672    
673        void Voice::CalculateFadeOutCoeff(float FadeOutTime, float SampleRate) {
674            EG1.CalculateFadeOutCoeff(FadeOutTime, SampleRate);
675        }
676    
677        int Voice::CalculatePan(uint8_t pan) {
678            int p;
679            // Gst behaviour: -64 and 63 are special cases
680            if (RgnInfo.Pan == -64)     p = pan * 2 - 127;
681            else if (RgnInfo.Pan == 63) p = pan * 2;
682            else                        p = pan + RgnInfo.Pan;
683    
684            if (p < 0) return 0;
685            if (p > 127) return 127;
686            return p;
687        }
688    
689        release_trigger_t Voice::GetReleaseTriggerFlags() {
690            release_trigger_t flags =
691                (pRegion->NoNoteOffReleaseTrigger) ?
692                    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
693            switch (pRegion->SustainReleaseTrigger) {
694                case ::gig::sust_rel_trg_none:
695                    break;
696                case ::gig::sust_rel_trg_maxvelocity:
697                    flags |= release_trigger_sustain_maxvelocity;
698                    break;
699                case ::gig::sust_rel_trg_keyvelocity:
700                    flags |= release_trigger_sustain_keyvelocity;
701                    break;
702            }
703            return flags;
704      }      }
705    
706  }} // namespace LinuxSampler::gig  }} // namespace LinuxSampler::gig
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