/[svn]/linuxsampler/trunk/src/engines/gig/Voice.cpp
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revision 614 by persson, Mon Jun 6 16:54:20 2005 UTC revision 3628 by schoenebeck, Sat Oct 5 14:37:31 2019 UTC
# Line 3  Line 3 
3   *   LinuxSampler - modular, streaming capable sampler                     *   *   LinuxSampler - modular, streaming capable sampler                     *
4   *                                                                         *   *                                                                         *
5   *   Copyright (C) 2003, 2004 by Benno Senoner and Christian Schoenebeck   *   *   Copyright (C) 2003, 2004 by Benno Senoner and Christian Schoenebeck   *
6   *   Copyright (C) 2005 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 21  Line 23 
23   *   MA  02111-1307  USA                                                   *   *   MA  02111-1307  USA                                                   *
24   ***************************************************************************/   ***************************************************************************/
25    
 #include "EGADSR.h"  
 #include "Manipulator.h"  
26  #include "../../common/Features.h"  #include "../../common/Features.h"
27  #include "Synthesizer.h"  #include "Synthesizer.h"
28    #include "Profiler.h"
29    #include "Engine.h"
30    #include "EngineChannel.h"
31    
32  #include "Voice.h"  #include "Voice.h"
33    
34  namespace LinuxSampler { namespace gig {  namespace LinuxSampler { namespace gig {
35    
36      const float Voice::FILTER_CUTOFF_COEFF(CalculateFilterCutoffCoeff());      // sanity checks: fromGigLfoWave() assumes equally mapped enums
37        static_assert(int64_t(::gig::lfo_wave_sine) == int64_t(LFO::wave_sine),
38      const int Voice::FILTER_UPDATE_MASK(CalculateFilterUpdateMask());                    "enum LFO::wave_t not equally value mapped to libgig's enum ::gig::lfo_wave_t");
39        static_assert(int64_t(::gig::lfo_wave_triangle) == int64_t(LFO::wave_triangle),
40      float Voice::CalculateFilterCutoffCoeff() {                    "enum LFO::wave_t not equally value mapped to libgig's enum ::gig::lfo_wave_t");
41          return log(CONFIG_FILTER_CUTOFF_MIN / CONFIG_FILTER_CUTOFF_MAX);      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      int Voice::CalculateFilterUpdateMask() {                    "enum LFO::wave_t not equally value mapped to libgig's enum ::gig::lfo_wave_t");
45          if (CONFIG_FILTER_UPDATE_STEPS <= 0) return 0;  
46          int power_of_two;      // converts ::gig::lfo_wave_t (libgig) -> LFO::wave_t (LinuxSampler)
47          for (power_of_two = 0; 1<<power_of_two < CONFIG_FILTER_UPDATE_STEPS; power_of_two++);      inline LFO::wave_t fromGigLfoWave(::gig::lfo_wave_t wave) {
48          return (1 << power_of_two) - 1;          // simply assuming equally mapped enums on both sides
49            return static_cast<LFO::wave_t>(wave);
50      }      }
51    
52      Voice::Voice() {      Voice::Voice() {
53          pEngine     = NULL;          pEngine = NULL;
54          pDiskThread = NULL;          pEG1 = &EG1;
55          PlaybackState = playback_state_end;          pEG2 = &EG2;
         pEG1   = NULL;  
         pEG2   = NULL;  
         pEG3   = NULL;  
         pVCAManipulator  = NULL;  
         pVCFCManipulator = NULL;  
         pVCOManipulator  = NULL;  
         pLFO1  = NULL;  
         pLFO2  = NULL;  
         pLFO3  = NULL;  
         KeyGroup = 0;  
         SynthesisMode = 0; // set all mode bits to 0 first  
         // select synthesis implementation (currently either pure C++ or MMX+SSE(1))  
         #if ARCH_X86  
         SYNTHESIS_MODE_SET_IMPLEMENTATION(SynthesisMode, Features::supportsMMX() && Features::supportsSSE());  
         #else  
         SYNTHESIS_MODE_SET_IMPLEMENTATION(SynthesisMode, false);  
         #endif  
         SYNTHESIS_MODE_SET_PROFILING(SynthesisMode, true);  
   
         FilterLeft.Reset();  
         FilterRight.Reset();  
56      }      }
57    
58      Voice::~Voice() {      Voice::~Voice() {
         if (pEG1)  delete pEG1;  
         if (pEG2)  delete pEG2;  
         if (pEG3)  delete pEG3;  
         if (pLFO1) delete pLFO1;  
         if (pLFO2) delete pLFO2;  
         if (pLFO3) delete pLFO3;  
         if (pVCAManipulator)  delete pVCAManipulator;  
         if (pVCFCManipulator) delete pVCFCManipulator;  
         if (pVCOManipulator)  delete pVCOManipulator;  
     }  
   
     void Voice::SetEngine(Engine* pEngine) {  
         this->pEngine = pEngine;  
   
         // delete old objects  
         if (pEG1) delete pEG1;  
         if (pEG2) delete pEG2;  
         if (pEG3) delete pEG3;  
         if (pVCAManipulator)  delete pVCAManipulator;  
         if (pVCFCManipulator) delete pVCFCManipulator;  
         if (pVCOManipulator)  delete pVCOManipulator;  
         if (pLFO1) delete pLFO1;  
         if (pLFO2) delete pLFO2;  
         if (pLFO3) delete pLFO3;  
   
         // create new ones  
         pEG1   = new EGADSR(pEngine, Event::destination_vca);  
         pEG2   = new EGADSR(pEngine, Event::destination_vcfc);  
         pEG3   = new EGDecay(pEngine, Event::destination_vco);  
         pVCAManipulator  = new VCAManipulator(pEngine);  
         pVCFCManipulator = new VCFCManipulator(pEngine);  
         pVCOManipulator  = new VCOManipulator(pEngine);  
         pLFO1  = new LFO<gig::VCAManipulator>(0.0f, 1.0f, LFO<VCAManipulator>::propagation_top_down, pVCAManipulator, pEngine->pEventPool);  
         pLFO2  = new LFO<gig::VCFCManipulator>(0.0f, 1.0f, LFO<VCFCManipulator>::propagation_top_down, pVCFCManipulator, pEngine->pEventPool);  
         pLFO3  = new LFO<gig::VCOManipulator>(-1200.0f, 1200.0f, LFO<VCOManipulator>::propagation_middle_balanced, pVCOManipulator, pEngine->pEventPool); // +-1 octave (+-1200 cents) max.  
   
         this->pDiskThread = pEngine->pDiskThread;  
         dmsg(6,("Voice::SetEngine()\n"));  
59      }      }
60    
61      /**      EngineChannel* Voice::GetGigEngineChannel() {
62       *  Initializes and triggers the voice, a disk stream will be launched if          return static_cast<EngineChannel*>(pEngineChannel);
63       *  needed.      }
      *  
      *  @param pEngineChannel       - engine channel on which this voice was ordered  
      *  @param itNoteOnEvent        - event that caused triggering of this voice  
      *  @param PitchBend            - MIDI detune factor (-8192 ... +8191)  
      *  @param pInstrument          - points to the loaded instrument which provides sample wave(s) and articulation data  
      *  @param iLayer               - layer number this voice refers to (only if this is a layered sound of course)  
      *  @param ReleaseTriggerVoice  - if this new voice is a release trigger voice (optional, default = false)  
      *  @param VoiceStealingAllowed - wether the voice is allowed to steal voices for further subvoices  
      *  @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::Instrument* pInstrument, int iLayer, bool ReleaseTriggerVoice, bool VoiceStealingAllowed) {  
         this->pEngineChannel = pEngineChannel;  
         if (!pInstrument) {  
            dmsg(1,("voice::trigger: !pInstrument\n"));  
            exit(EXIT_FAILURE);  
         }  
         #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            = type_normal;  
         MIDIKey         = itNoteOnEvent->Param.Note.Key;  
         pRegion         = pInstrument->GetRegion(MIDIKey);  
         PlaybackState   = playback_state_init; // mark voice as triggered, but no audio rendered yet  
         Delay           = itNoteOnEvent->FragmentPos();  
         itTriggerEvent  = itNoteOnEvent;  
         itKillEvent     = Pool<Event>::Iterator();  
   
         if (!pRegion) {  
             dmsg(4, ("gig::Voice: No Region defined for MIDI key %d\n", MIDIKey));  
             return -1;  
         }  
64    
65          // only mark the first voice of a layered voice (group) to be in a      void Voice::SetEngine(LinuxSampler::Engine* pEngine) {
66          // key group, so the layered voices won't kill each other          Engine* engine = static_cast<Engine*>(pEngine);
67          KeyGroup = (iLayer == 0 && !ReleaseTriggerVoice) ? pRegion->KeyGroup : 0;          this->pEngine     = engine;
68            this->pDiskThread = engine->pDiskThread;
69          // get current dimension values to select the right dimension region          dmsg(6,("Voice::SetEngine()\n"));
70          //FIXME: controller values for selecting the dimension region here are currently not sample accurate      }
         uint DimValues[8] = { 0 };  
         for (int i = pRegion->Dimensions - 1; i >= 0; i--) {  
             switch (pRegion->pDimensionDefinitions[i].dimension) {  
                 case ::gig::dimension_samplechannel:  
                     DimValues[i] = 0; //TODO: we currently ignore this dimension  
                     break;  
                 case ::gig::dimension_layer:  
                     DimValues[i] = iLayer;  
                     break;  
                 case ::gig::dimension_velocity:  
                     DimValues[i] = itNoteOnEvent->Param.Note.Velocity;  
                     break;  
                 case ::gig::dimension_channelaftertouch:  
                     DimValues[i] = 0; //TODO: we currently ignore this dimension  
                     break;  
                 case ::gig::dimension_releasetrigger:  
                     Type = (ReleaseTriggerVoice) ? type_release_trigger : (!iLayer) ? type_release_trigger_required : type_normal;  
                     DimValues[i] = (uint) ReleaseTriggerVoice;  
                     break;  
                 case ::gig::dimension_keyboard:  
                     DimValues[i] = (uint) pEngineChannel->CurrentKeyDimension;  
                     break;  
                 case ::gig::dimension_roundrobin:  
                     DimValues[i] = (uint) pEngineChannel->pMIDIKeyInfo[MIDIKey].RoundRobinIndex; // incremented for each note on  
                     break;  
                 case ::gig::dimension_random:  
                     pEngine->RandomSeed = pEngine->RandomSeed * 1103515245 + 12345; // classic pseudo random number generator  
                     DimValues[i] = (uint) pEngine->RandomSeed >> (32 - pRegion->pDimensionDefinitions[i].bits); // highest bits are most random  
                     break;  
                 case ::gig::dimension_modwheel:  
                     DimValues[i] = pEngineChannel->ControllerTable[1];  
                     break;  
                 case ::gig::dimension_breath:  
                     DimValues[i] = pEngineChannel->ControllerTable[2];  
                     break;  
                 case ::gig::dimension_foot:  
                     DimValues[i] = pEngineChannel->ControllerTable[4];  
                     break;  
                 case ::gig::dimension_portamentotime:  
                     DimValues[i] = pEngineChannel->ControllerTable[5];  
                     break;  
                 case ::gig::dimension_effect1:  
                     DimValues[i] = pEngineChannel->ControllerTable[12];  
                     break;  
                 case ::gig::dimension_effect2:  
                     DimValues[i] = pEngineChannel->ControllerTable[13];  
                     break;  
                 case ::gig::dimension_genpurpose1:  
                     DimValues[i] = pEngineChannel->ControllerTable[16];  
                     break;  
                 case ::gig::dimension_genpurpose2:  
                     DimValues[i] = pEngineChannel->ControllerTable[17];  
                     break;  
                 case ::gig::dimension_genpurpose3:  
                     DimValues[i] = pEngineChannel->ControllerTable[18];  
                     break;  
                 case ::gig::dimension_genpurpose4:  
                     DimValues[i] = pEngineChannel->ControllerTable[19];  
                     break;  
                 case ::gig::dimension_sustainpedal:  
                     DimValues[i] = pEngineChannel->ControllerTable[64];  
                     break;  
                 case ::gig::dimension_portamento:  
                     DimValues[i] = pEngineChannel->ControllerTable[65];  
                     break;  
                 case ::gig::dimension_sostenutopedal:  
                     DimValues[i] = pEngineChannel->ControllerTable[66];  
                     break;  
                 case ::gig::dimension_softpedal:  
                     DimValues[i] = pEngineChannel->ControllerTable[67];  
                     break;  
                 case ::gig::dimension_genpurpose5:  
                     DimValues[i] = pEngineChannel->ControllerTable[80];  
                     break;  
                 case ::gig::dimension_genpurpose6:  
                     DimValues[i] = pEngineChannel->ControllerTable[81];  
                     break;  
                 case ::gig::dimension_genpurpose7:  
                     DimValues[i] = pEngineChannel->ControllerTable[82];  
                     break;  
                 case ::gig::dimension_genpurpose8:  
                     DimValues[i] = pEngineChannel->ControllerTable[83];  
                     break;  
                 case ::gig::dimension_effect1depth:  
                     DimValues[i] = pEngineChannel->ControllerTable[91];  
                     break;  
                 case ::gig::dimension_effect2depth:  
                     DimValues[i] = pEngineChannel->ControllerTable[92];  
                     break;  
                 case ::gig::dimension_effect3depth:  
                     DimValues[i] = pEngineChannel->ControllerTable[93];  
                     break;  
                 case ::gig::dimension_effect4depth:  
                     DimValues[i] = pEngineChannel->ControllerTable[94];  
                     break;  
                 case ::gig::dimension_effect5depth:  
                     DimValues[i] = pEngineChannel->ControllerTable[95];  
                     break;  
                 case ::gig::dimension_none:  
                     std::cerr << "gig::Voice::Trigger() Error: dimension=none\n" << std::flush;  
                     break;  
                 default:  
                     std::cerr << "gig::Voice::Trigger() Error: Unknown dimension\n" << std::flush;  
             }  
         }  
         pDimRgn = pRegion->GetDimensionRegionByValue(DimValues);  
71    
72          pSample = pDimRgn->pSample; // sample won't change until the voice is finished      Voice::SampleInfo Voice::GetSampleInfo() {
73          if (!pSample || !pSample->SamplesTotal) return -1; // no need to continue if sample is silent          SampleInfo si;
74            si.SampleRate       = pSample->SamplesPerSecond;
75            si.ChannelCount     = pSample->Channels;
76            si.FrameSize        = pSample->FrameSize;
77            si.BitDepth         = pSample->BitDepth;
78            si.TotalFrameCount  = (uint)pSample->SamplesTotal;
79    
80          // select channel mode (mono or stereo)          si.HasLoops       = pRegion->SampleLoops;
81          SYNTHESIS_MODE_SET_CHANNELS(SynthesisMode, pSample->Channels == 2);          si.LoopStart      = (si.HasLoops) ? pRegion->pSampleLoops[0].LoopStart  : 0;
82            si.LoopLength     = (si.HasLoops) ? pRegion->pSampleLoops[0].LoopLength : 0;
83            si.LoopPlayCount  = pSample->LoopPlayCount;
84            si.Unpitched      = !pRegion->PitchTrack;
85    
86          // get starting crossfade volume level          return si;
87          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;  
         }  
88    
89          PanLeft  = 1.0f - float(RTMath::Max(pDimRgn->Pan, 0)) /  63.0f;      Voice::RegionInfo Voice::GetRegionInfo() {
90          PanRight = 1.0f - float(RTMath::Min(pDimRgn->Pan, 0)) / -64.0f;          RegionInfo ri;
91            ri.UnityNote = pRegion->UnityNote;
92            ri.FineTune  = pRegion->FineTune;
93            ri.Pan       = pRegion->Pan;
94            ri.SampleStartOffset = pRegion->SampleStartOffset;
95    
96          Pos = pDimRgn->SampleStartOffset; // offset where we should start playback of sample (0 - 2000 sample points)          ri.EG2PreAttack        = pRegion->EG2PreAttack;
97            ri.EG2Attack           = pRegion->EG2Attack;
98            ri.EG2Decay1           = pRegion->EG2Decay1;
99            ri.EG2Decay2           = pRegion->EG2Decay2;
100            ri.EG2Sustain          = pRegion->EG2Sustain;
101            ri.EG2InfiniteSustain  = pRegion->EG2InfiniteSustain;
102            ri.EG2Release          = pRegion->EG2Release;
103    
104          // Check if the sample needs disk streaming or is too short for that          ri.EG3Attack     = pRegion->EG3Attack;
105          long cachedsamples = pSample->GetCache().Size / pSample->FrameSize;          ri.EG3Depth      = pRegion->EG3Depth;
106          DiskVoice          = cachedsamples < pSample->SamplesTotal;          ri.VCFEnabled    = pRegion->VCFEnabled;
107            ri.VCFType       = Filter::vcf_type_t(pRegion->VCFType);
108          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;  
                 LoopCyclesLeft = pSample->LoopPlayCount;  
             }  
             else RAMLoop = false;  
109    
110              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;  
                 LoopCyclesLeft = pSample->LoopPlayCount;  
             }  
             else RAMLoop = false;  
             dmsg(4,("RAM only voice launched (Looping: %s)\n", (RAMLoop) ? "yes" : "no"));  
         }  
111    
112            return ri;
113        }
114    
115          // calculate initial pitch value      Voice::InstrumentInfo Voice::GetInstrumentInfo() {
116          {          InstrumentInfo ii;
117              double pitchbasecents = pDimRgn->FineTune + (int) pEngine->ScaleTuning[MIDIKey % 12];          ii.FineTune = GetGigEngineChannel()->pInstrument->FineTune;
118              if (pDimRgn->PitchTrack) pitchbasecents += (MIDIKey - (int) pDimRgn->UnityNote) * 100;          ii.PitchbendRange = GetGigEngineChannel()->pInstrument->PitchbendRange;
             this->PitchBase = RTMath::CentsToFreqRatio(pitchbasecents) * (double(pSample->SamplesPerSecond) / double(pEngine->pAudioOutputDevice->SampleRate()));  
             this->PitchBend = RTMath::CentsToFreqRatio(((double) PitchBend / 8192.0) * 200.0); // pitchbend wheel +-2 semitones = 200 cents  
         }  
119    
120          const double velocityAttenuation = pDimRgn->GetVelocityAttenuation(itNoteOnEvent->Param.Note.Velocity);          return ii;
121        }
122    
123          Volume = velocityAttenuation / 32768.0f; // we downscale by 32768 to convert from int16 value range to DSP value range (which is -1.0..1.0)      double Voice::GetSampleAttenuation() {
124            return pRegion->SampleAttenuation;
125        }
126    
127          Volume *= pDimRgn->SampleAttenuation;      double Voice::GetVelocityAttenuation(uint8_t MIDIKeyVelocity) {
128            return pRegion->GetVelocityAttenuation(MIDIKeyVelocity);
129        }
130    
131          // the length of the decay and release curves are dependent on the velocity      double Voice::GetVelocityRelease(uint8_t MIDIKeyVelocity) {
132          const double velrelease = 1 / pDimRgn->GetVelocityRelease(itNoteOnEvent->Param.Note.Velocity);          return pRegion->GetVelocityRelease(MIDIKeyVelocity);
133        }
134    
135          // setup EG 1 (VCA EG)      void Voice::ProcessCCEvent(RTList<Event>::Iterator& itEvent) {
136          {          if (itEvent->Type == Event::type_control_change && itEvent->Param.CC.Controller) { // if (valid) MIDI control change event
137              // get current value of EG1 controller              if (pRegion->AttenuationController.type == ::gig::attenuation_ctrl_t::type_controlchange &&
138              double eg1controllervalue;                  itEvent->Param.CC.Controller == pRegion->AttenuationController.controller_number) {
139              switch (pDimRgn->EG1Controller.type) {                  CrossfadeSmoother.update(AbstractEngine::CrossfadeCurve[CrossfadeAttenuation(itEvent->Param.CC.Value)]);
                 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;  
140              }              }
             if (pDimRgn->EG1ControllerInvert) eg1controllervalue = 127 - eg1controllervalue;  
   
             // calculate influence of EG1 controller on EG1's parameters (TODO: needs to be fine tuned)  
             double eg1attack  = (pDimRgn->EG1ControllerAttackInfluence)  ? 0.0001 * (double) (1 << pDimRgn->EG1ControllerAttackInfluence)  * eg1controllervalue : 0.0;  
             double eg1decay   = (pDimRgn->EG1ControllerDecayInfluence)   ? 0.0001 * (double) (1 << pDimRgn->EG1ControllerDecayInfluence)   * eg1controllervalue : 0.0;  
             double eg1release = (pDimRgn->EG1ControllerReleaseInfluence) ? 0.0001 * (double) (1 << pDimRgn->EG1ControllerReleaseInfluence) * eg1controllervalue : 0.0;  
   
             pEG1->Trigger(pDimRgn->EG1PreAttack,  
                           pDimRgn->EG1Attack + eg1attack,  
                           pDimRgn->EG1Hold,  
                           pSample->LoopStart,  
                           (pDimRgn->EG1Decay1 + eg1decay) * velrelease,  
                           (pDimRgn->EG1Decay2 + eg1decay) * velrelease,  
                           pDimRgn->EG1InfiniteSustain,  
                           pDimRgn->EG1Sustain,  
                           (pDimRgn->EG1Release + eg1release) * velrelease,  
                           // the SSE synthesis implementation requires  
                           // the vca start to be 16 byte aligned  
                           SYNTHESIS_MODE_GET_IMPLEMENTATION(SynthesisMode) ?  
                           Delay & 0xfffffffc : Delay,  
                           velocityAttenuation);  
141          }          }
142        }
143    
144        void Voice::ProcessChannelPressureEvent(RTList<Event>::Iterator& itEvent) {
145          // setup EG 2 (VCF Cutoff EG)          if (itEvent->Type == Event::type_channel_pressure) { // if (valid) MIDI channel pressure (aftertouch) event
146          {              if (pRegion->AttenuationController.type == ::gig::attenuation_ctrl_t::type_channelaftertouch) {
147              // get current value of EG2 controller                  CrossfadeSmoother.update(AbstractEngine::CrossfadeCurve[CrossfadeAttenuation(itEvent->Param.ChannelPressure.Value)]);
             double eg2controllervalue;  
             switch (pDimRgn->EG2Controller.type) {  
                 case ::gig::eg2_ctrl_t::type_none: // no controller defined  
                     eg2controllervalue = 0;  
                     break;  
                 case ::gig::eg2_ctrl_t::type_channelaftertouch:  
                     eg2controllervalue = 0; // TODO: aftertouch not yet supported  
                     break;  
                 case ::gig::eg2_ctrl_t::type_velocity:  
                     eg2controllervalue = itNoteOnEvent->Param.Note.Velocity;  
                     break;  
                 case ::gig::eg2_ctrl_t::type_controlchange: // MIDI control change controller  
                     eg2controllervalue = pEngineChannel->ControllerTable[pDimRgn->EG2Controller.controller_number];  
                     break;  
148              }              }
             if (pDimRgn->EG2ControllerInvert) eg2controllervalue = 127 - eg2controllervalue;  
   
             // calculate influence of EG2 controller on EG2's parameters (TODO: needs to be fine tuned)  
             double eg2attack  = (pDimRgn->EG2ControllerAttackInfluence)  ? 0.0001 * (double) (1 << pDimRgn->EG2ControllerAttackInfluence)  * eg2controllervalue : 0.0;  
             double eg2decay   = (pDimRgn->EG2ControllerDecayInfluence)   ? 0.0001 * (double) (1 << pDimRgn->EG2ControllerDecayInfluence)   * eg2controllervalue : 0.0;  
             double eg2release = (pDimRgn->EG2ControllerReleaseInfluence) ? 0.0001 * (double) (1 << pDimRgn->EG2ControllerReleaseInfluence) * eg2controllervalue : 0.0;  
   
             pEG2->Trigger(pDimRgn->EG2PreAttack,  
                           pDimRgn->EG2Attack + eg2attack,  
                           false,  
                           pSample->LoopStart,  
                           (pDimRgn->EG2Decay1 + eg2decay) * velrelease,  
                           (pDimRgn->EG2Decay2 + eg2decay) * velrelease,  
                           pDimRgn->EG2InfiniteSustain,  
                           pDimRgn->EG2Sustain,  
                           (pDimRgn->EG2Release + eg2release) * velrelease,  
                           Delay,  
                           velocityAttenuation);  
         }  
   
   
         // setup EG 3 (VCO EG)  
         {  
           double eg3depth = RTMath::CentsToFreqRatio(pDimRgn->EG3Depth);  
           pEG3->Trigger(eg3depth, pDimRgn->EG3Attack, Delay);  
149          }          }
150        }
151    
152        void Voice::ProcessPolyphonicKeyPressureEvent(RTList<Event>::Iterator& itEvent) {
153            // Not used so far
154        }
155    
156          // setup LFO 1 (VCA LFO)      void Voice::ProcessCutoffEvent(RTList<Event>::Iterator& itEvent) {
157          {          int ccvalue = itEvent->Param.CC.Value;
158              uint16_t lfo1_internal_depth;          if (VCFCutoffCtrl.value == ccvalue) return;
159              switch (pDimRgn->LFO1Controller) {          VCFCutoffCtrl.value = ccvalue;
160                  case ::gig::lfo1_ctrl_internal:          if (pRegion->VCFCutoffControllerInvert)  ccvalue = 127 - ccvalue;
161                      lfo1_internal_depth  = pDimRgn->LFO1InternalDepth;          if (ccvalue < pRegion->VCFVelocityScale) ccvalue = pRegion->VCFVelocityScale;
162                      pLFO1->ExtController = 0; // no external controller          float cutoff = CutoffBase * float(ccvalue);
163                      break;          if (cutoff > 127.0f) cutoff = 127.0f;
                 case ::gig::lfo1_ctrl_modwheel:  
                     lfo1_internal_depth  = 0;  
                     pLFO1->ExtController = 1; // MIDI controller 1  
                     break;  
                 case ::gig::lfo1_ctrl_breath:  
                     lfo1_internal_depth  = 0;  
                     pLFO1->ExtController = 2; // MIDI controller 2  
                     break;  
                 case ::gig::lfo1_ctrl_internal_modwheel:  
                     lfo1_internal_depth  = pDimRgn->LFO1InternalDepth;  
                     pLFO1->ExtController = 1; // MIDI controller 1  
                     break;  
                 case ::gig::lfo1_ctrl_internal_breath:  
                     lfo1_internal_depth  = pDimRgn->LFO1InternalDepth;  
                     pLFO1->ExtController = 2; // MIDI controller 2  
                     break;  
                 default:  
                     lfo1_internal_depth  = 0;  
                     pLFO1->ExtController = 0; // no external controller  
             }  
             pLFO1->Trigger(pDimRgn->LFO1Frequency,  
                           lfo1_internal_depth,  
                           pDimRgn->LFO1ControlDepth,  
                           pEngineChannel->ControllerTable[pLFO1->ExtController],  
                           pDimRgn->LFO1FlipPhase,  
                           pEngine->SampleRate,  
                           Delay);  
         }  
164    
165            VCFCutoffCtrl.fvalue = cutoff; // needed for initialization of fFinalCutoff next time
166            fFinalCutoff = cutoff;
167        }
168    
169          // setup LFO 2 (VCF Cutoff LFO)      double Voice::CalculateCrossfadeVolume(uint8_t MIDIKeyVelocity) {
170          {          float crossfadeVolume;
171              uint16_t lfo2_internal_depth;          switch (pRegion->AttenuationController.type) {
172              switch (pDimRgn->LFO2Controller) {              case ::gig::attenuation_ctrl_t::type_channelaftertouch:
173                  case ::gig::lfo2_ctrl_internal:                  crossfadeVolume = Engine::CrossfadeCurve[CrossfadeAttenuation(GetGigEngineChannel()->ControllerTable[128])];
174                      lfo2_internal_depth  = pDimRgn->LFO2InternalDepth;                  break;
175                      pLFO2->ExtController = 0; // no external controller              case ::gig::attenuation_ctrl_t::type_velocity:
176                      break;                  crossfadeVolume = Engine::CrossfadeCurve[CrossfadeAttenuation(MIDIKeyVelocity)];
177                  case ::gig::lfo2_ctrl_modwheel:                  break;
178                      lfo2_internal_depth  = 0;              case ::gig::attenuation_ctrl_t::type_controlchange: //FIXME: currently not sample accurate
179                      pLFO2->ExtController = 1; // MIDI controller 1                  crossfadeVolume = Engine::CrossfadeCurve[CrossfadeAttenuation(GetGigEngineChannel()->ControllerTable[pRegion->AttenuationController.controller_number])];
180                      break;                  break;
181                  case ::gig::lfo2_ctrl_foot:              case ::gig::attenuation_ctrl_t::type_none: // no crossfade defined
182                      lfo2_internal_depth  = 0;              default:
183                      pLFO2->ExtController = 4; // MIDI controller 4                  crossfadeVolume = 1.0f;
                     break;  
                 case ::gig::lfo2_ctrl_internal_modwheel:  
                     lfo2_internal_depth  = pDimRgn->LFO2InternalDepth;  
                     pLFO2->ExtController = 1; // MIDI controller 1  
                     break;  
                 case ::gig::lfo2_ctrl_internal_foot:  
                     lfo2_internal_depth  = pDimRgn->LFO2InternalDepth;  
                     pLFO2->ExtController = 4; // MIDI controller 4  
                     break;  
                 default:  
                     lfo2_internal_depth  = 0;  
                     pLFO2->ExtController = 0; // no external controller  
             }  
             pLFO2->Trigger(pDimRgn->LFO2Frequency,  
                           lfo2_internal_depth,  
                           pDimRgn->LFO2ControlDepth,  
                           pEngineChannel->ControllerTable[pLFO2->ExtController],  
                           pDimRgn->LFO2FlipPhase,  
                           pEngine->SampleRate,  
                           Delay);  
184          }          }
185    
186            return crossfadeVolume;
187        }
188    
189          // setup LFO 3 (VCO LFO)      double Voice::GetEG1ControllerValue(uint8_t MIDIKeyVelocity) {
190          {          double eg1controllervalue = 0;
191              uint16_t lfo3_internal_depth;          switch (pRegion->EG1Controller.type) {
192              switch (pDimRgn->LFO3Controller) {              case ::gig::eg1_ctrl_t::type_none: // no controller defined
193                  case ::gig::lfo3_ctrl_internal:                  eg1controllervalue = 0;
194                      lfo3_internal_depth  = pDimRgn->LFO3InternalDepth;                  break;
195                      pLFO3->ExtController = 0; // no external controller              case ::gig::eg1_ctrl_t::type_channelaftertouch:
196                      break;                  eg1controllervalue = GetGigEngineChannel()->ControllerTable[128];
197                  case ::gig::lfo3_ctrl_modwheel:                  break;
198                      lfo3_internal_depth  = 0;              case ::gig::eg1_ctrl_t::type_velocity:
199                      pLFO3->ExtController = 1; // MIDI controller 1                  eg1controllervalue = MIDIKeyVelocity;
200                      break;                  break;
201                  case ::gig::lfo3_ctrl_aftertouch:              case ::gig::eg1_ctrl_t::type_controlchange: // MIDI control change controller
202                      lfo3_internal_depth  = 0;                  eg1controllervalue = GetGigEngineChannel()->ControllerTable[pRegion->EG1Controller.controller_number];
203                      pLFO3->ExtController = 0; // TODO: aftertouch not implemented yet                  break;
                     break;  
                 case ::gig::lfo3_ctrl_internal_modwheel:  
                     lfo3_internal_depth  = pDimRgn->LFO3InternalDepth;  
                     pLFO3->ExtController = 1; // MIDI controller 1  
                     break;  
                 case ::gig::lfo3_ctrl_internal_aftertouch:  
                     lfo3_internal_depth  = pDimRgn->LFO3InternalDepth;  
                     pLFO1->ExtController = 0; // TODO: aftertouch not implemented yet  
                     break;  
                 default:  
                     lfo3_internal_depth  = 0;  
                     pLFO3->ExtController = 0; // no external controller  
             }  
             pLFO3->Trigger(pDimRgn->LFO3Frequency,  
                           lfo3_internal_depth,  
                           pDimRgn->LFO3ControlDepth,  
                           pEngineChannel->ControllerTable[pLFO3->ExtController],  
                           false,  
                           pEngine->SampleRate,  
                           Delay);  
204          }          }
205            if (pRegion->EG1ControllerInvert) eg1controllervalue = 127 - eg1controllervalue;
206    
207            return eg1controllervalue;
208        }
209    
210          #if CONFIG_FORCE_FILTER      Voice::EGInfo Voice::CalculateEG1ControllerInfluence(double eg1ControllerValue) {
211          const bool bUseFilter = true;          EGInfo eg;
212          #else // use filter only if instrument file told so          // (eg1attack is different from the others)
213          const bool bUseFilter = pDimRgn->VCFEnabled;          if (pRegion->EG1Attack < 1e-8 && // attack in gig == 0
214          #endif // CONFIG_FORCE_FILTER              (pRegion->EG1ControllerAttackInfluence == 0 ||
215          SYNTHESIS_MODE_SET_FILTER(SynthesisMode, bUseFilter);               eg1ControllerValue <= 10)) { // strange GSt special case
216          if (bUseFilter) {              eg.Attack = 0; // this will force the attack to be 0 in the call to EG1.trigger
217              #ifdef CONFIG_OVERRIDE_CUTOFF_CTRL          } else {
218              VCFCutoffCtrl.controller = CONFIG_OVERRIDE_CUTOFF_CTRL;              eg.Attack  = (pRegion->EG1ControllerAttackInfluence)  ?
219              #else // use the one defined in the instrument file                  1 + 0.031 * (double) (pRegion->EG1ControllerAttackInfluence == 1 ?
220              switch (pDimRgn->VCFCutoffController) {                                        1 : 1 << pRegion->EG1ControllerAttackInfluence) * eg1ControllerValue : 1.0;
221                  case ::gig::vcf_cutoff_ctrl_modwheel:          }
222                      VCFCutoffCtrl.controller = 1;          eg.Decay   = (pRegion->EG1ControllerDecayInfluence)   ? 1 + 0.00775 * (double) (1 << pRegion->EG1ControllerDecayInfluence)   * eg1ControllerValue : 1.0;
223                      break;          eg.Release = (pRegion->EG1ControllerReleaseInfluence) ? 1 + 0.00775 * (double) (1 << pRegion->EG1ControllerReleaseInfluence) * eg1ControllerValue : 1.0;
224                  case ::gig::vcf_cutoff_ctrl_effect1:  
225                      VCFCutoffCtrl.controller = 12;          return eg;
226                      break;      }
227                  case ::gig::vcf_cutoff_ctrl_effect2:  
228                      VCFCutoffCtrl.controller = 13;      double Voice::GetEG2ControllerValue(uint8_t MIDIKeyVelocity) {
229                      break;          double eg2controllervalue = 0;
230                  case ::gig::vcf_cutoff_ctrl_breath:          switch (pRegion->EG2Controller.type) {
231                      VCFCutoffCtrl.controller = 2;              case ::gig::eg2_ctrl_t::type_none: // no controller defined
232                      break;                  eg2controllervalue = 0;
233                  case ::gig::vcf_cutoff_ctrl_foot:                  break;
234                      VCFCutoffCtrl.controller = 4;              case ::gig::eg2_ctrl_t::type_channelaftertouch:
235                      break;                  eg2controllervalue = GetGigEngineChannel()->ControllerTable[128];
236                  case ::gig::vcf_cutoff_ctrl_sustainpedal:                  break;
237                      VCFCutoffCtrl.controller = 64;              case ::gig::eg2_ctrl_t::type_velocity:
238                      break;                  eg2controllervalue = MIDIKeyVelocity;
239                  case ::gig::vcf_cutoff_ctrl_softpedal:                  break;
240                      VCFCutoffCtrl.controller = 67;              case ::gig::eg2_ctrl_t::type_controlchange: // MIDI control change controller
241                      break;                  eg2controllervalue = GetGigEngineChannel()->ControllerTable[pRegion->EG2Controller.controller_number];
242                  case ::gig::vcf_cutoff_ctrl_genpurpose7:                  break;
                     VCFCutoffCtrl.controller = 82;  
                     break;  
                 case ::gig::vcf_cutoff_ctrl_genpurpose8:  
                     VCFCutoffCtrl.controller = 83;  
                     break;  
                 case ::gig::vcf_cutoff_ctrl_aftertouch: //TODO: not implemented yet  
                 case ::gig::vcf_cutoff_ctrl_none:  
                 default:  
                     VCFCutoffCtrl.controller = 0;  
                     break;  
             }  
             #endif // CONFIG_OVERRIDE_CUTOFF_CTRL  
   
             #ifdef CONFIG_OVERRIDE_RESONANCE_CTRL  
             VCFResonanceCtrl.controller = CONFIG_OVERRIDE_RESONANCE_CTRL;  
             #else // use the one defined in the instrument file  
             switch (pDimRgn->VCFResonanceController) {  
                 case ::gig::vcf_res_ctrl_genpurpose3:  
                     VCFResonanceCtrl.controller = 18;  
                     break;  
                 case ::gig::vcf_res_ctrl_genpurpose4:  
                     VCFResonanceCtrl.controller = 19;  
                     break;  
                 case ::gig::vcf_res_ctrl_genpurpose5:  
                     VCFResonanceCtrl.controller = 80;  
                     break;  
                 case ::gig::vcf_res_ctrl_genpurpose6:  
                     VCFResonanceCtrl.controller = 81;  
                     break;  
                 case ::gig::vcf_res_ctrl_none:  
                 default:  
                     VCFResonanceCtrl.controller = 0;  
             }  
             #endif // CONFIG_OVERRIDE_RESONANCE_CTRL  
   
             #ifndef CONFIG_OVERRIDE_FILTER_TYPE  
             FilterLeft.SetType(pDimRgn->VCFType);  
             FilterRight.SetType(pDimRgn->VCFType);  
             #else // override filter type  
             FilterLeft.SetType(CONFIG_OVERRIDE_FILTER_TYPE);  
             FilterRight.SetType(CONFIG_OVERRIDE_FILTER_TYPE);  
             #endif // CONFIG_OVERRIDE_FILTER_TYPE  
   
             VCFCutoffCtrl.value    = pEngineChannel->ControllerTable[VCFCutoffCtrl.controller];  
             VCFResonanceCtrl.value = pEngineChannel->ControllerTable[VCFResonanceCtrl.controller];  
   
             // calculate cutoff frequency  
             float cutoff = (!VCFCutoffCtrl.controller)  
                 ? exp((float) (127 - itNoteOnEvent->Param.Note.Velocity) * (float) pDimRgn->VCFVelocityScale * 6.2E-5f * FILTER_CUTOFF_COEFF) * CONFIG_FILTER_CUTOFF_MAX  
                 : exp((float) VCFCutoffCtrl.value * 0.00787402f * FILTER_CUTOFF_COEFF) * CONFIG_FILTER_CUTOFF_MAX;  
   
             // calculate resonance  
             float resonance = (float) VCFResonanceCtrl.value * 0.00787f;   // 0.0..1.0  
             if (pDimRgn->VCFKeyboardTracking) {  
                 resonance += (float) (itNoteOnEvent->Param.Note.Key - pDimRgn->VCFKeyboardTrackingBreakpoint) * 0.00787f;  
             }  
             Constrain(resonance, 0.0, 1.0); // correct resonance if outside allowed value range (0.0..1.0)  
   
             VCFCutoffCtrl.fvalue    = cutoff - CONFIG_FILTER_CUTOFF_MIN;  
             VCFResonanceCtrl.fvalue = resonance;  
   
             FilterUpdateCounter = -1;  
         }  
         else {  
             VCFCutoffCtrl.controller    = 0;  
             VCFResonanceCtrl.controller = 0;  
243          }          }
244            if (pRegion->EG2ControllerInvert) eg2controllervalue = 127 - eg2controllervalue;
245    
246          return 0; // success          return eg2controllervalue;
247      }      }
248    
249      /**      Voice::EGInfo Voice::CalculateEG2ControllerInfluence(double eg2ControllerValue) {
250       *  Renders the audio data for this voice for the current audio fragment.          EGInfo eg;
251       *  The sample input data can either come from RAM (cached sample or sample          eg.Attack  = (pRegion->EG2ControllerAttackInfluence)  ? 1 + 0.00775 * (double) (1 << pRegion->EG2ControllerAttackInfluence)  * eg2ControllerValue : 1.0;
252       *  part) or directly from disk. The output signal will be rendered by          eg.Decay   = (pRegion->EG2ControllerDecayInfluence)   ? 1 + 0.00775 * (double) (1 << pRegion->EG2ControllerDecayInfluence)   * eg2ControllerValue : 1.0;
253       *  resampling / interpolation. If this voice is a disk streaming voice and          eg.Release = (pRegion->EG2ControllerReleaseInfluence) ? 1 + 0.00775 * (double) (1 << pRegion->EG2ControllerReleaseInfluence) * eg2ControllerValue : 1.0;
      *  the voice completely played back the cached RAM part of the sample, it  
      *  will automatically switch to disk playback for the next RenderAudio()  
      *  call.  
      *  
      *  @param Samples - number of samples to be rendered in this audio fragment cycle  
      */  
     void Voice::Render(uint Samples) {  
   
         // select default values for synthesis mode bits  
         SYNTHESIS_MODE_SET_INTERPOLATE(SynthesisMode, (PitchBase * PitchBend) != 1.0f);  
         SYNTHESIS_MODE_SET_CONSTPITCH(SynthesisMode, true);  
         SYNTHESIS_MODE_SET_LOOP(SynthesisMode, false);  
   
         // Reset the synthesis parameter matrix  
   
         pEngine->ResetSynthesisParameters(Event::destination_vca, this->Volume * this->CrossfadeVolume * pEngineChannel->GlobalVolume);  
         pEngine->ResetSynthesisParameters(Event::destination_vco, this->PitchBase);  
         pEngine->ResetSynthesisParameters(Event::destination_vcfc, VCFCutoffCtrl.fvalue);  
         pEngine->ResetSynthesisParameters(Event::destination_vcfr, VCFResonanceCtrl.fvalue);  
   
         // Apply events to the synthesis parameter matrix  
         ProcessEvents(Samples);  
   
         // Let all modulators write their parameter changes to the synthesis parameter matrix for the current audio fragment  
         pEG1->Process(Samples, pEngineChannel->pMIDIKeyInfo[MIDIKey].pEvents, itTriggerEvent, this->Pos, this->PitchBase * this->PitchBend, itKillEvent);  
         pEG2->Process(Samples, pEngineChannel->pMIDIKeyInfo[MIDIKey].pEvents, itTriggerEvent, this->Pos, this->PitchBase * this->PitchBend);  
         if (pEG3->Process(Samples)) { // if pitch EG is active  
             SYNTHESIS_MODE_SET_INTERPOLATE(SynthesisMode, true);  
             SYNTHESIS_MODE_SET_CONSTPITCH(SynthesisMode, false);  
         }  
         pLFO1->Process(Samples);  
         pLFO2->Process(Samples);  
         if (pLFO3->Process(Samples)) { // if pitch LFO modulation is active  
             SYNTHESIS_MODE_SET_INTERPOLATE(SynthesisMode, true);  
             SYNTHESIS_MODE_SET_CONSTPITCH(SynthesisMode, false);  
         }  
   
         if (SYNTHESIS_MODE_GET_FILTER(SynthesisMode))  
             CalculateBiquadParameters(Samples); // calculate the final biquad filter parameters  
254    
255          switch (this->PlaybackState) {          return eg;
256        }
257    
258              case playback_state_init:      void Voice::InitLFO1() {
259                  this->PlaybackState = playback_state_ram; // we always start playback from RAM cache and switch then to disk if needed          uint16_t lfo1_internal_depth;
260                  // no break - continue with playback_state_ram          switch (pRegion->LFO1Controller) {
261                case ::gig::lfo1_ctrl_internal:
262              case playback_state_ram: {                  lfo1_internal_depth  = pRegion->LFO1InternalDepth;
263                      if (RAMLoop) SYNTHESIS_MODE_SET_LOOP(SynthesisMode, true); // enable looping                  pLFO1->ExtController = 0; // no external controller
264                    bLFO1Enabled         = (lfo1_internal_depth > 0);
                     // render current fragment  
                     Synthesize(Samples, (sample_t*) pSample->GetCache().pStart, Delay);  
   
                     if (DiskVoice) {  
                         // check if we reached the allowed limit of the sample RAM cache  
                         if (Pos > MaxRAMPos) {  
                             dmsg(5,("Voice: switching to disk playback (Pos=%f)\n", Pos));  
                             this->PlaybackState = playback_state_disk;  
                         }  
                     }  
                     else if (Pos >= pSample->GetCache().Size / pSample->FrameSize) {  
                         this->PlaybackState = playback_state_end;  
                     }  
                 }  
                 break;  
   
             case playback_state_disk: {  
                     if (!DiskStreamRef.pStream) {  
                         // check if the disk thread created our ordered disk stream in the meantime  
                         DiskStreamRef.pStream = pDiskThread->AskForCreatedStream(DiskStreamRef.OrderID);  
                         if (!DiskStreamRef.pStream) {  
                             std::cout << stderr << "Disk stream not available in time!" << std::endl << std::flush;  
                             KillImmediately();  
                             return;  
                         }  
                         DiskStreamRef.pStream->IncrementReadPos(pSample->Channels * (int(Pos) - MaxRAMPos));  
                         Pos -= int(Pos);  
                         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) Pos;  
                     const int readSampleWords = iPos * pSample->Channels; // amount of sample words actually been read  
                     DiskStreamRef.pStream->IncrementReadPos(readSampleWords);  
                     Pos -= iPos; // just keep fractional part of Pos  
   
                     // 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;  
                     }  
                 }  
265                  break;                  break;
266                case ::gig::lfo1_ctrl_modwheel:
267              case playback_state_end:                  lfo1_internal_depth  = 0;
268                  std::cerr << "gig::Voice::Render(): entered with playback_state_end, this is a bug!\n" << std::flush;                  pLFO1->ExtController = 1; // MIDI controller 1
269                    bLFO1Enabled         = (pRegion->LFO1ControlDepth > 0);
270                  break;                  break;
271                case ::gig::lfo1_ctrl_breath:
272                    lfo1_internal_depth  = 0;
273                    pLFO1->ExtController = 2; // MIDI controller 2
274                    bLFO1Enabled         = (pRegion->LFO1ControlDepth > 0);
275                    break;
276                case ::gig::lfo1_ctrl_internal_modwheel:
277                    lfo1_internal_depth  = pRegion->LFO1InternalDepth;
278                    pLFO1->ExtController = 1; // MIDI controller 1
279                    bLFO1Enabled         = (lfo1_internal_depth > 0 || pRegion->LFO1ControlDepth > 0);
280                    break;
281                case ::gig::lfo1_ctrl_internal_breath:
282                    lfo1_internal_depth  = pRegion->LFO1InternalDepth;
283                    pLFO1->ExtController = 2; // MIDI controller 2
284                    bLFO1Enabled         = (lfo1_internal_depth > 0 || pRegion->LFO1ControlDepth > 0);
285                    break;
286                default:
287                    lfo1_internal_depth  = 0;
288                    pLFO1->ExtController = 0; // no external controller
289                    bLFO1Enabled         = false;
290            }
291            if (bLFO1Enabled) {
292                pLFO1->trigger(fromGigLfoWave(pRegion->LFO1WaveForm),
293                               pRegion->LFO1Frequency,
294                               pRegion->LFO1Phase,
295                               LFO::start_level_mid, // see https://sourceforge.net/p/linuxsampler/mailman/linuxsampler-devel/thread/2189307.cNP0Xbctxq%40silver/#msg36774029
296                               lfo1_internal_depth,
297                               pRegion->LFO1ControlDepth,
298                               pRegion->LFO1FlipPhase,
299                               pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
300                pLFO1->updateByMIDICtrlValue(pLFO1->ExtController ? GetGigEngineChannel()->ControllerTable[pLFO1->ExtController] : 0);
301                pLFO1->setScriptDepthFactor(
302                    pNote->Override.AmpLFODepth.Value,
303                    pNote->Override.AmpLFODepth.Final
304                );
305                if (pNote->Override.AmpLFOFreq.isFinal())
306                    pLFO1->setScriptFrequencyFinal(
307                        pNote->Override.AmpLFOFreq.Value, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE
308                    );
309                else
310                    pLFO1->setScriptFrequencyFactor(
311                        pNote->Override.AmpLFOFreq.Value, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE
312                    );
313          }          }
314        }
315    
316          // Reset synthesis event lists (except VCO, as VCO events apply channel wide currently)      void Voice::InitLFO2() {
317          pEngineChannel->pSynthesisEvents[Event::destination_vca]->clear();          uint16_t lfo2_internal_depth;
318          pEngineChannel->pSynthesisEvents[Event::destination_vcfc]->clear();          switch (pRegion->LFO2Controller) {
319          pEngineChannel->pSynthesisEvents[Event::destination_vcfr]->clear();              case ::gig::lfo2_ctrl_internal:
320                    lfo2_internal_depth  = pRegion->LFO2InternalDepth;
321          // Reset delay                  pLFO2->ExtController = 0; // no external controller
322          Delay = 0;                  bLFO2Enabled         = (lfo2_internal_depth > 0);
323                    break;
324          itTriggerEvent = Pool<Event>::Iterator();              case ::gig::lfo2_ctrl_modwheel:
325                    lfo2_internal_depth  = 0;
326          // If sample stream or release stage finished, kill the voice                  pLFO2->ExtController = 1; // MIDI controller 1
327          if (PlaybackState == playback_state_end || pEG1->GetStage() == EGADSR::stage_end) KillImmediately();                  bLFO2Enabled         = (pRegion->LFO2ControlDepth > 0);
328      }                  break;
329                case ::gig::lfo2_ctrl_foot:
330      /**                  lfo2_internal_depth  = 0;
331       *  Resets voice variables. Should only be called if rendering process is                  pLFO2->ExtController = 4; // MIDI controller 4
332       *  suspended / not running.                  bLFO2Enabled         = (pRegion->LFO2ControlDepth > 0);
333       */                  break;
334      void Voice::Reset() {              case ::gig::lfo2_ctrl_internal_modwheel:
335          pLFO1->Reset();                  lfo2_internal_depth  = pRegion->LFO2InternalDepth;
336          pLFO2->Reset();                  pLFO2->ExtController = 1; // MIDI controller 1
337          pLFO3->Reset();                  bLFO2Enabled         = (lfo2_internal_depth > 0 || pRegion->LFO2ControlDepth > 0);
338          FilterLeft.Reset();                  break;
339          FilterRight.Reset();              case ::gig::lfo2_ctrl_internal_foot:
340          DiskStreamRef.pStream = NULL;                  lfo2_internal_depth  = pRegion->LFO2InternalDepth;
341          DiskStreamRef.hStream = 0;                  pLFO2->ExtController = 4; // MIDI controller 4
342          DiskStreamRef.State   = Stream::state_unused;                  bLFO2Enabled         = (lfo2_internal_depth > 0 || pRegion->LFO2ControlDepth > 0);
343          DiskStreamRef.OrderID = 0;                  break;
344          PlaybackState = playback_state_end;              default:
345          itTriggerEvent = Pool<Event>::Iterator();                  lfo2_internal_depth  = 0;
346          itKillEvent    = Pool<Event>::Iterator();                  pLFO2->ExtController = 0; // no external controller
347      }                  bLFO2Enabled         = false;
348            }
349      /**          if (bLFO2Enabled) {
350       *  Process the control change event lists of the engine for the current              pLFO2->trigger(fromGigLfoWave(pRegion->LFO2WaveForm),
351       *  audio fragment. Event values will be applied to the synthesis parameter                             pRegion->LFO2Frequency,
352       *  matrix.                             pRegion->LFO2Phase,
353       *                             LFO::start_level_mid, // see https://sourceforge.net/p/linuxsampler/mailman/linuxsampler-devel/thread/2189307.cNP0Xbctxq%40silver/#msg36774029
354       *  @param Samples - number of samples to be rendered in this audio fragment cycle                             lfo2_internal_depth,
355       */                             pRegion->LFO2ControlDepth,
356      void Voice::ProcessEvents(uint Samples) {                             pRegion->LFO2FlipPhase,
357                               pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
358          // dispatch control change events              pLFO2->updateByMIDICtrlValue(pLFO2->ExtController ? GetGigEngineChannel()->ControllerTable[pLFO2->ExtController] : 0);
359          RTList<Event>::Iterator itCCEvent = pEngineChannel->pCCEvents->first();              pLFO2->setScriptDepthFactor(
360          if (Delay) { // skip events that happened before this voice was triggered                  pNote->Override.CutoffLFODepth.Value,
361              while (itCCEvent && itCCEvent->FragmentPos() <= Delay) ++itCCEvent;                  pNote->Override.CutoffLFODepth.Final
362                );
363                if (pNote->Override.CutoffLFOFreq.isFinal())
364                    pLFO2->setScriptFrequencyFinal(pNote->Override.CutoffLFOFreq.Value, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
365                else
366                    pLFO2->setScriptFrequencyFactor(pNote->Override.CutoffLFOFreq.Value, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
367          }          }
368          while (itCCEvent) {      }
             if (itCCEvent->Param.CC.Controller) { // if valid MIDI controller  
                 if (itCCEvent->Param.CC.Controller == VCFCutoffCtrl.controller) {  
                     *pEngineChannel->pSynthesisEvents[Event::destination_vcfc]->allocAppend() = *itCCEvent;  
                 }  
                 if (itCCEvent->Param.CC.Controller == VCFResonanceCtrl.controller) {  
                     *pEngineChannel->pSynthesisEvents[Event::destination_vcfr]->allocAppend() = *itCCEvent;  
                 }  
                 if (itCCEvent->Param.CC.Controller == pLFO1->ExtController) {  
                     pLFO1->SendEvent(itCCEvent);  
                 }  
                 if (itCCEvent->Param.CC.Controller == pLFO2->ExtController) {  
                     pLFO2->SendEvent(itCCEvent);  
                 }  
                 if (itCCEvent->Param.CC.Controller == pLFO3->ExtController) {  
                     pLFO3->SendEvent(itCCEvent);  
                 }  
                 if (pDimRgn->AttenuationController.type == ::gig::attenuation_ctrl_t::type_controlchange &&  
                     itCCEvent->Param.CC.Controller == pDimRgn->AttenuationController.controller_number) { // if crossfade event  
                     *pEngineChannel->pSynthesisEvents[Event::destination_vca]->allocAppend() = *itCCEvent;  
                 }  
             }  
369    
370              ++itCCEvent;      void Voice::InitLFO3() {
371            uint16_t lfo3_internal_depth;
372            switch (pRegion->LFO3Controller) {
373                case ::gig::lfo3_ctrl_internal:
374                    lfo3_internal_depth  = pRegion->LFO3InternalDepth;
375                    pLFO3->ExtController = 0; // no external controller
376                    bLFO3Enabled         = (lfo3_internal_depth > 0);
377                    break;
378                case ::gig::lfo3_ctrl_modwheel:
379                    lfo3_internal_depth  = 0;
380                    pLFO3->ExtController = 1; // MIDI controller 1
381                    bLFO3Enabled         = (pRegion->LFO3ControlDepth > 0);
382                    break;
383                case ::gig::lfo3_ctrl_aftertouch:
384                    lfo3_internal_depth  = 0;
385                    pLFO3->ExtController = CTRL_TABLE_IDX_AFTERTOUCH;
386                    bLFO3Enabled         = true;
387                    break;
388                case ::gig::lfo3_ctrl_internal_modwheel:
389                    lfo3_internal_depth  = pRegion->LFO3InternalDepth;
390                    pLFO3->ExtController = 1; // MIDI controller 1
391                    bLFO3Enabled         = (lfo3_internal_depth > 0 || pRegion->LFO3ControlDepth > 0);
392                    break;
393                case ::gig::lfo3_ctrl_internal_aftertouch:
394                    lfo3_internal_depth  = pRegion->LFO3InternalDepth;
395                    pLFO3->ExtController = CTRL_TABLE_IDX_AFTERTOUCH;
396                    bLFO3Enabled         = (lfo3_internal_depth > 0 || pRegion->LFO3ControlDepth > 0);
397                    break;
398                default:
399                    lfo3_internal_depth  = 0;
400                    pLFO3->ExtController = 0; // no external controller
401                    bLFO3Enabled         = false;
402            }
403            if (bLFO3Enabled) {
404                pLFO3->trigger(fromGigLfoWave(pRegion->LFO3WaveForm),
405                               pRegion->LFO3Frequency,
406                               pRegion->LFO3Phase,
407                               LFO::start_level_max, // see https://sourceforge.net/p/linuxsampler/mailman/linuxsampler-devel/thread/2189307.cNP0Xbctxq%40silver/#msg36774029
408                               lfo3_internal_depth,
409                               pRegion->LFO3ControlDepth,
410                               pRegion->LFO3FlipPhase,
411                               pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
412                pLFO3->updateByMIDICtrlValue(pLFO3->ExtController ? GetGigEngineChannel()->ControllerTable[pLFO3->ExtController] : 0);
413                pLFO3->setScriptDepthFactor(
414                    pNote->Override.PitchLFODepth.Value,
415                    pNote->Override.PitchLFODepth.Final
416                );
417                if (pNote->Override.PitchLFOFreq.isFinal())
418                    pLFO3->setScriptFrequencyFinal(pNote->Override.PitchLFOFreq.Value, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
419                else
420                    pLFO3->setScriptFrequencyFactor(pNote->Override.PitchLFOFreq.Value, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
421          }          }
422        }
423    
424        float Voice::CalculateCutoffBase(uint8_t MIDIKeyVelocity) {
425          // process pitch events          float cutoff = pRegion->GetVelocityCutoff(MIDIKeyVelocity);
426          {          if (pRegion->VCFKeyboardTracking) {
427              RTList<Event>* pVCOEventList = pEngineChannel->pSynthesisEvents[Event::destination_vco];              cutoff *= RTMath::CentsToFreqRatioUnlimited((MIDIKey() - pRegion->VCFKeyboardTrackingBreakpoint) * 100);
428              RTList<Event>::Iterator itVCOEvent = pVCOEventList->first();          }
429              if (Delay) { // skip events that happened before this voice was triggered          return cutoff;
430                  while (itVCOEvent && itVCOEvent->FragmentPos() <= Delay) ++itVCOEvent;      }
431              }  
432              // apply old pitchbend value until first pitch event occurs      float Voice::CalculateFinalCutoff(float cutoffBase) {
433              if (this->PitchBend != 1.0) {          int cvalue;
434                  uint end = (itVCOEvent) ? itVCOEvent->FragmentPos() : Samples;          if (VCFCutoffCtrl.controller) {
435                  for (uint i = Delay; i < end; i++) {              cvalue = GetGigEngineChannel()->ControllerTable[VCFCutoffCtrl.controller];
436                      pEngine->pSynthesisParameters[Event::destination_vco][i] *= this->PitchBend;              if (pRegion->VCFCutoffControllerInvert) cvalue = 127 - cvalue;
437                  }              // VCFVelocityScale in this case means Minimum cutoff
438              }              if (cvalue < pRegion->VCFVelocityScale) cvalue = pRegion->VCFVelocityScale;
             float pitch;  
             while (itVCOEvent) {  
                 RTList<Event>::Iterator itNextVCOEvent = itVCOEvent;  
                 ++itNextVCOEvent;  
   
                 // calculate the influence length of this event (in sample points)  
                 uint end = (itNextVCOEvent) ? itNextVCOEvent->FragmentPos() : Samples;  
   
                 pitch = RTMath::CentsToFreqRatio(((double) itVCOEvent->Param.Pitch.Pitch / 8192.0) * 200.0); // +-two semitones = +-200 cents  
   
                 // apply pitch value to the pitch parameter sequence  
                 for (uint i = itVCOEvent->FragmentPos(); i < end; i++) {  
                     pEngine->pSynthesisParameters[Event::destination_vco][i] *= pitch;  
                 }  
   
                 itVCOEvent = itNextVCOEvent;  
             }  
             if (!pVCOEventList->isEmpty()) {  
                 this->PitchBend = pitch;  
                 SYNTHESIS_MODE_SET_INTERPOLATE(SynthesisMode, true);  
                 SYNTHESIS_MODE_SET_CONSTPITCH(SynthesisMode, false);  
             }  
439          }          }
440            else {
441          // process volume / attenuation events (TODO: we only handle and _expect_ crossfade events here ATM !)              cvalue = pRegion->VCFCutoff;
         {  
             RTList<Event>* pVCAEventList = pEngineChannel->pSynthesisEvents[Event::destination_vca];  
             RTList<Event>::Iterator itVCAEvent = pVCAEventList->first();  
             if (Delay) { // skip events that happened before this voice was triggered  
                 while (itVCAEvent && itVCAEvent->FragmentPos() <= Delay) ++itVCAEvent;  
             }  
             float crossfadevolume;  
             while (itVCAEvent) {  
                 RTList<Event>::Iterator itNextVCAEvent = itVCAEvent;  
                 ++itNextVCAEvent;  
   
                 // calculate the influence length of this event (in sample points)  
                 uint end = (itNextVCAEvent) ? itNextVCAEvent->FragmentPos() : Samples;  
   
                 crossfadevolume = CrossfadeAttenuation(itVCAEvent->Param.CC.Value);  
   
                 float effective_volume = crossfadevolume * this->Volume * pEngineChannel->GlobalVolume;  
   
                 // apply volume value to the volume parameter sequence  
                 for (uint i = itVCAEvent->FragmentPos(); i < end; i++) {  
                     pEngine->pSynthesisParameters[Event::destination_vca][i] = effective_volume;  
                 }  
   
                 itVCAEvent = itNextVCAEvent;  
             }  
             if (!pVCAEventList->isEmpty()) this->CrossfadeVolume = crossfadevolume;  
442          }          }
443            float fco = cutoffBase * float(cvalue);
444            if (fco > 127.0f) fco = 127.0f;
445    
446          // process filter cutoff events          return fco;
447          {      }
             RTList<Event>* pCutoffEventList = pEngineChannel->pSynthesisEvents[Event::destination_vcfc];  
             RTList<Event>::Iterator itCutoffEvent = pCutoffEventList->first();  
             if (Delay) { // skip events that happened before this voice was triggered  
                 while (itCutoffEvent && itCutoffEvent->FragmentPos() <= Delay) ++itCutoffEvent;  
             }  
             float cutoff;  
             while (itCutoffEvent) {  
                 RTList<Event>::Iterator itNextCutoffEvent = itCutoffEvent;  
                 ++itNextCutoffEvent;  
   
                 // calculate the influence length of this event (in sample points)  
                 uint end = (itNextCutoffEvent) ? itNextCutoffEvent->FragmentPos() : Samples;  
   
                 cutoff = exp((float) itCutoffEvent->Param.CC.Value * 0.00787402f * FILTER_CUTOFF_COEFF) * CONFIG_FILTER_CUTOFF_MAX - CONFIG_FILTER_CUTOFF_MIN;  
   
                 // apply cutoff frequency to the cutoff parameter sequence  
                 for (uint i = itCutoffEvent->FragmentPos(); i < end; i++) {  
                     pEngine->pSynthesisParameters[Event::destination_vcfc][i] = cutoff;  
                 }  
448    
449                  itCutoffEvent = itNextCutoffEvent;      uint8_t Voice::GetVCFCutoffCtrl() {
450              }          uint8_t ctrl;
451              if (!pCutoffEventList->isEmpty()) VCFCutoffCtrl.fvalue = cutoff; // needed for initialization of parameter matrix next time          switch (pRegion->VCFCutoffController) {
452                case ::gig::vcf_cutoff_ctrl_modwheel:
453                    ctrl = 1;
454                    break;
455                case ::gig::vcf_cutoff_ctrl_effect1:
456                    ctrl = 12;
457                    break;
458                case ::gig::vcf_cutoff_ctrl_effect2:
459                    ctrl = 13;
460                    break;
461                case ::gig::vcf_cutoff_ctrl_breath:
462                    ctrl = 2;
463                    break;
464                case ::gig::vcf_cutoff_ctrl_foot:
465                    ctrl = 4;
466                    break;
467                case ::gig::vcf_cutoff_ctrl_sustainpedal:
468                    ctrl = 64;
469                    break;
470                case ::gig::vcf_cutoff_ctrl_softpedal:
471                    ctrl = 67;
472                    break;
473                case ::gig::vcf_cutoff_ctrl_genpurpose7:
474                    ctrl = 82;
475                    break;
476                case ::gig::vcf_cutoff_ctrl_genpurpose8:
477                    ctrl = 83;
478                    break;
479                case ::gig::vcf_cutoff_ctrl_aftertouch:
480                    ctrl = CTRL_TABLE_IDX_AFTERTOUCH;
481                    break;
482                case ::gig::vcf_cutoff_ctrl_none:
483                default:
484                    ctrl = 0;
485                    break;
486          }          }
487    
488          // process filter resonance events          return ctrl;
         {  
             RTList<Event>* pResonanceEventList = pEngineChannel->pSynthesisEvents[Event::destination_vcfr];  
             RTList<Event>::Iterator itResonanceEvent = pResonanceEventList->first();  
             if (Delay) { // skip events that happened before this voice was triggered  
                 while (itResonanceEvent && itResonanceEvent->FragmentPos() <= Delay) ++itResonanceEvent;  
             }  
             while (itResonanceEvent) {  
                 RTList<Event>::Iterator itNextResonanceEvent = itResonanceEvent;  
                 ++itNextResonanceEvent;  
   
                 // calculate the influence length of this event (in sample points)  
                 uint end = (itNextResonanceEvent) ? itNextResonanceEvent->FragmentPos() : Samples;  
   
                 // convert absolute controller value to differential  
                 int ctrldelta = itResonanceEvent->Param.CC.Value - VCFResonanceCtrl.value;  
                 VCFResonanceCtrl.value = itResonanceEvent->Param.CC.Value;  
   
                 float resonancedelta = (float) ctrldelta * 0.00787f; // 0.0..1.0  
   
                 // apply cutoff frequency to the cutoff parameter sequence  
                 for (uint i = itResonanceEvent->FragmentPos(); i < end; i++) {  
                     pEngine->pSynthesisParameters[Event::destination_vcfr][i] += resonancedelta;  
                 }  
   
                 itResonanceEvent = itNextResonanceEvent;  
             }  
             if (!pResonanceEventList->isEmpty()) VCFResonanceCtrl.fvalue = pResonanceEventList->last()->Param.CC.Value * 0.00787f; // needed for initialization of parameter matrix next time  
         }  
489      }      }
490    
491      /**      uint8_t Voice::GetVCFResonanceCtrl() {
492       * Calculate all necessary, final biquad filter parameters.          uint8_t ctrl;
493       *          switch (pRegion->VCFResonanceController) {
494       * @param Samples - number of samples to be rendered in this audio fragment cycle              case ::gig::vcf_res_ctrl_genpurpose3:
495       */                  ctrl = 18;
496      void Voice::CalculateBiquadParameters(uint Samples) {                  break;
497          biquad_param_t bqbase;              case ::gig::vcf_res_ctrl_genpurpose4:
498          biquad_param_t bqmain;                  ctrl = 19;
499          float prev_cutoff = pEngine->pSynthesisParameters[Event::destination_vcfc][0];                  break;
500          float prev_res    = pEngine->pSynthesisParameters[Event::destination_vcfr][0];              case ::gig::vcf_res_ctrl_genpurpose5:
501          FilterLeft.SetParameters( &bqbase, &bqmain, prev_cutoff + CONFIG_FILTER_CUTOFF_MIN, prev_res, pEngine->SampleRate);                  ctrl = 80;
502          FilterRight.SetParameters(&bqbase, &bqmain, prev_cutoff + CONFIG_FILTER_CUTOFF_MIN, prev_res, pEngine->SampleRate);                  break;
503          pEngine->pBasicFilterParameters[0] = bqbase;              case ::gig::vcf_res_ctrl_genpurpose6:
504          pEngine->pMainFilterParameters[0]  = bqmain;                  ctrl = 81;
505                    break;
506          float* bq;              case ::gig::vcf_res_ctrl_none:
507          for (int i = 1; i < Samples; i++) {              default:
508              // recalculate biquad parameters if cutoff or resonance differ from previous sample point                  ctrl = 0;
             if (!(i & FILTER_UPDATE_MASK)) {  
                 if (pEngine->pSynthesisParameters[Event::destination_vcfr][i] != prev_res ||  
                     pEngine->pSynthesisParameters[Event::destination_vcfc][i] != prev_cutoff)  
                 {  
                     prev_cutoff = pEngine->pSynthesisParameters[Event::destination_vcfc][i];  
                     prev_res    = pEngine->pSynthesisParameters[Event::destination_vcfr][i];  
                     FilterLeft.SetParameters( &bqbase, &bqmain, prev_cutoff + CONFIG_FILTER_CUTOFF_MIN, prev_res, pEngine->SampleRate);  
                     FilterRight.SetParameters(&bqbase, &bqmain, prev_cutoff + CONFIG_FILTER_CUTOFF_MIN, prev_res, pEngine->SampleRate);  
                 }  
             }  
   
             //same as 'pEngine->pBasicFilterParameters[i] = bqbase;'  
             bq    = (float*) &pEngine->pBasicFilterParameters[i];  
             bq[0] = bqbase.b0;  
             bq[1] = bqbase.b1;  
             bq[2] = bqbase.b2;  
             bq[3] = bqbase.a1;  
             bq[4] = bqbase.a2;  
   
             // same as 'pEngine->pMainFilterParameters[i] = bqmain;'  
             bq    = (float*) &pEngine->pMainFilterParameters[i];  
             bq[0] = bqmain.b0;  
             bq[1] = bqmain.b1;  
             bq[2] = bqmain.b2;  
             bq[3] = bqmain.a1;  
             bq[4] = bqmain.a2;  
509          }          }
     }  
510    
511      /**          return ctrl;
      *  Synthesizes the current audio fragment for this voice.  
      *  
      *  @param Samples - number of sample points to be rendered in this audio  
      *                   fragment cycle  
      *  @param pSrc    - pointer to input sample data  
      *  @param Skip    - number of sample points to skip in output buffer  
      */  
     void Voice::Synthesize(uint Samples, sample_t* pSrc, uint Skip) {  
         RunSynthesisFunction(SynthesisMode, *this, Samples, pSrc, Skip);  
     }  
   
     /**  
      *  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();  
512      }      }
513    
514      /**      void Voice::TriggerEG1(const EGInfo& egInfo, double velrelease, double velocityAttenuation, uint sampleRate, uint8_t velocity) {
515       *  Kill the voice in regular sense. Let the voice render audio until          EG1.setStateOptions(
516       *  the kill event actually occured and then fade down the volume level              pRegion->EG1Options.AttackCancel,
517       *  very quickly and let the voice die finally. Unlike a normal release              pRegion->EG1Options.AttackHoldCancel,
518       *  of a voice, a kill process cannot be cancalled and is therefore              pRegion->EG1Options.Decay1Cancel,
519       *  usually used for voice stealing and key group conflicts.              pRegion->EG1Options.Decay2Cancel,
520       *              pRegion->EG1Options.ReleaseCancel
521       *  @param itKillEvent - event which caused the voice to be killed          );
522       */          EG1.trigger(pRegion->EG1PreAttack,
523      void Voice::Kill(Pool<Event>::Iterator& itKillEvent) {                      (pNote && pNote->Override.Attack.isFinal()) ?
524          #if CONFIG_DEVMODE                          pNote->Override.Attack.Value :
525          if (!itKillEvent) dmsg(1,("gig::Voice::Kill(): ERROR, !itKillEvent !!!\n"));                          RTMath::Max(pRegion->EG1Attack, 0.0316) * egInfo.Attack,
526          if (itKillEvent && !itKillEvent.isValid()) dmsg(1,("gig::Voice::Kill(): ERROR, itKillEvent invalid !!!\n"));                      pRegion->EG1Hold,
527          #endif // CONFIG_DEVMODE                      (pNote && pNote->Override.Decay.isFinal()) ?
528                            pNote->Override.Decay.Value :
529          if (itTriggerEvent && itKillEvent->FragmentPos() <= itTriggerEvent->FragmentPos()) return;                          pRegion->EG1Decay1 * egInfo.Decay * velrelease,
530          this->itKillEvent = itKillEvent;                      (pNote && pNote->Override.Decay.isFinal()) ?
531                            pNote->Override.Decay.Value :
532                            pRegion->EG1Decay2 * egInfo.Decay * velrelease,
533                        pRegion->EG1InfiniteSustain,
534                        (pNote && pNote->Override.Sustain.Final) ?
535                            uint(pNote->Override.Sustain.Value * 1000.f) :
536                            pRegion->EG1Sustain * (pNote ? pNote->Override.Sustain.Value : 1.f),
537                        (pNote && pNote->Override.Release.isFinal()) ?
538                            pNote->Override.Release.Value :
539                            RTMath::Max(pRegion->EG1Release * velrelease, 0.014) * egInfo.Release,
540                        velocityAttenuation,
541                        sampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
542        }
543    
544        void Voice::TriggerEG2(const EGInfo& egInfo, double velrelease, double velocityAttenuation, uint sampleRate, uint8_t velocity) {
545            EG2.setStateOptions(
546                pRegion->EG2Options.AttackCancel,
547                pRegion->EG2Options.AttackHoldCancel,
548                pRegion->EG2Options.Decay1Cancel,
549                pRegion->EG2Options.Decay2Cancel,
550                pRegion->EG2Options.ReleaseCancel
551            );
552            EG2.trigger(uint(RgnInfo.EG2PreAttack),
553                        (pNote && pNote->Override.CutoffAttack.isFinal()) ?
554                            pNote->Override.CutoffAttack.Value :
555                            RgnInfo.EG2Attack * egInfo.Attack,
556                        false,
557                        (pNote && pNote->Override.CutoffDecay.isFinal()) ?
558                            pNote->Override.CutoffDecay.Value :
559                            RgnInfo.EG2Decay1 * egInfo.Decay * velrelease,
560                        (pNote && pNote->Override.CutoffDecay.isFinal()) ?
561                            pNote->Override.CutoffDecay.Value :
562                            RgnInfo.EG2Decay2 * egInfo.Decay * velrelease,
563                        RgnInfo.EG2InfiniteSustain,
564                        (pNote && pNote->Override.CutoffSustain.Final) ?
565                            uint(pNote->Override.CutoffSustain.Value * 1000.f) :
566                            uint(RgnInfo.EG2Sustain),
567                        (pNote && pNote->Override.CutoffRelease.isFinal()) ?
568                            pNote->Override.CutoffRelease.Value :
569                            RgnInfo.EG2Release * egInfo.Release * velrelease,
570                        velocityAttenuation,
571                        sampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
572        }
573    
574        void Voice::ProcessGroupEvent(RTList<Event>::Iterator& itEvent) {
575            dmsg(4,("Voice %p processGroupEvents event type=%d", (void*)this, itEvent->Type));
576    
577            // TODO: The SustainPedal condition could be wrong, maybe the
578            // check should be if this Voice is in release stage or is a
579            // release sample instead. Need to test this in GSt.
580            // -- Andreas
581            //
582            // Commented sustain pedal check out. I don't think voices of the same
583            // note should be stopped at all, because it doesn't sound naturally
584            // with a drumkit.
585            // -- Christian, 2013-01-08
586            if (itEvent->Param.Note.Key != HostKey() /*||
587                !GetGigEngineChannel()->SustainPedal*/) {
588                dmsg(4,("Voice %p - kill", (void*)this));
589    
590                // kill the voice fast
591                pEG1->enterFadeOutStage();
592            }
593        }
594    
595        void Voice::CalculateFadeOutCoeff(float FadeOutTime, float SampleRate) {
596            EG1.CalculateFadeOutCoeff(FadeOutTime, SampleRate);
597        }
598    
599        int Voice::CalculatePan(uint8_t pan) {
600            int p;
601            // Gst behaviour: -64 and 63 are special cases
602            if (RgnInfo.Pan == -64)     p = pan * 2 - 127;
603            else if (RgnInfo.Pan == 63) p = pan * 2;
604            else                        p = pan + RgnInfo.Pan;
605    
606            if (p < 0) return 0;
607            if (p > 127) return 127;
608            return p;
609        }
610    
611        release_trigger_t Voice::GetReleaseTriggerFlags() {
612            release_trigger_t flags =
613                (pRegion->NoNoteOffReleaseTrigger) ?
614                    release_trigger_none : release_trigger_noteoff; //HACK: currently this method is actually only called by EngineBase if it already knows that this voice requires release trigger, so I took the short way instead of checking (again) the existence of a ::gig::dimension_releasetrigger
615            switch (pRegion->SustainReleaseTrigger) {
616                case ::gig::sust_rel_trg_none:
617                    break;
618                case ::gig::sust_rel_trg_maxvelocity:
619                    flags |= release_trigger_sustain_maxvelocity;
620                    break;
621                case ::gig::sust_rel_trg_keyvelocity:
622                    flags |= release_trigger_sustain_keyvelocity;
623                    break;
624            }
625            return flags;
626      }      }
627    
628  }} // namespace LinuxSampler::gig  }} // namespace LinuxSampler::gig
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