/[svn]/linuxsampler/trunk/src/engines/gig/Voice.cpp
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revision 630 by persson, Sat Jun 11 14:51:49 2005 UTC revision 3626 by schoenebeck, Thu Oct 3 14:40:17 2019 UTC
# Line 3  Line 3 
3   *   LinuxSampler - modular, streaming capable sampler                     *   *   LinuxSampler - modular, streaming capable sampler                     *
4   *                                                                         *   *                                                                         *
5   *   Copyright (C) 2003, 2004 by Benno Senoner and Christian Schoenebeck   *   *   Copyright (C) 2003, 2004 by Benno Senoner and Christian Schoenebeck   *
6   *   Copyright (C) 2005 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(::gig::lfo_wave_sine == LFO::wave_sine);
38      const int Voice::FILTER_UPDATE_MASK(CalculateFilterUpdateMask());      static_assert(::gig::lfo_wave_triangle == LFO::wave_triangle);
39        static_assert(::gig::lfo_wave_saw == LFO::wave_saw);
40      float Voice::CalculateFilterCutoffCoeff() {      static_assert(::gig::lfo_wave_square == LFO::wave_square);
41          return log(CONFIG_FILTER_CUTOFF_MIN / CONFIG_FILTER_CUTOFF_MAX);  
42      }      // converts ::gig::lfo_wave_t (libgig) -> LFO::wave_t (LinuxSampler)
43        inline LFO::wave_t fromGigLfoWave(::gig::lfo_wave_t wave) {
44      int Voice::CalculateFilterUpdateMask() {          // simply assuming equally mapped enums on both sides
45          if (CONFIG_FILTER_UPDATE_STEPS <= 0) return 0;          return static_cast<LFO::wave_t>(wave);
         int power_of_two;  
         for (power_of_two = 0; 1<<power_of_two < CONFIG_FILTER_UPDATE_STEPS; power_of_two++);  
         return (1 << power_of_two) - 1;  
46      }      }
47    
48      Voice::Voice() {      Voice::Voice() {
49          pEngine     = NULL;          pEngine = NULL;
50          pDiskThread = NULL;          pEG1 = &EG1;
51          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 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, true);  
   
         FilterLeft.Reset();  
         FilterRight.Reset();  
52      }      }
53    
54      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"));  
55      }      }
56    
57      /**      EngineChannel* Voice::GetGigEngineChannel() {
58       *  Initializes and triggers the voice, a disk stream will be launched if          return static_cast<EngineChannel*>(pEngineChannel);
59       *  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;  
         }  
   
         // only mark the first voice of a layered voice (group) to be in a  
         // key group, so the layered voices won't kill each other  
         KeyGroup = (iLayer == 0 && !ReleaseTriggerVoice) ? pRegion->KeyGroup : 0;  
   
         // get current dimension values to select the right dimension region  
         //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);  
60    
61          pSample = pDimRgn->pSample; // sample won't change until the voice is finished      void Voice::SetEngine(LinuxSampler::Engine* pEngine) {
62          if (!pSample || !pSample->SamplesTotal) return -1; // no need to continue if sample is silent          Engine* engine = static_cast<Engine*>(pEngine);
63            this->pEngine     = engine;
64            this->pDiskThread = engine->pDiskThread;
65            dmsg(6,("Voice::SetEngine()\n"));
66        }
67    
68          // calculate volume      Voice::SampleInfo Voice::GetSampleInfo() {
69          const double velocityAttenuation = pDimRgn->GetVelocityAttenuation(itNoteOnEvent->Param.Note.Velocity);          SampleInfo si;
70            si.SampleRate       = pSample->SamplesPerSecond;
71            si.ChannelCount     = pSample->Channels;
72            si.FrameSize        = pSample->FrameSize;
73            si.BitDepth         = pSample->BitDepth;
74            si.TotalFrameCount  = (uint)pSample->SamplesTotal;
75    
76          Volume = velocityAttenuation / 32768.0f; // we downscale by 32768 to convert from int16 value range to DSP value range (which is -1.0..1.0)          si.HasLoops       = pRegion->SampleLoops;
77            si.LoopStart      = (si.HasLoops) ? pRegion->pSampleLoops[0].LoopStart  : 0;
78            si.LoopLength     = (si.HasLoops) ? pRegion->pSampleLoops[0].LoopLength : 0;
79            si.LoopPlayCount  = pSample->LoopPlayCount;
80            si.Unpitched      = !pRegion->PitchTrack;
81    
82          Volume *= pDimRgn->SampleAttenuation;          return si;
83        }
84    
85          // the volume of release triggered samples depends on note length      Voice::RegionInfo Voice::GetRegionInfo() {
86          if (ReleaseTriggerVoice) {          RegionInfo ri;
87              float noteLength = float(pEngine->FrameTime + Delay -          ri.UnityNote = pRegion->UnityNote;
88                                       pEngineChannel->pMIDIKeyInfo[MIDIKey].NoteOnTime) / pEngine->SampleRate;          ri.FineTune  = pRegion->FineTune;
89              float attenuation = 1 - 0.01053 * (256 >> pDimRgn->ReleaseTriggerDecay) * noteLength;          ri.Pan       = pRegion->Pan;
90              if (attenuation <= 0) return -1;          ri.SampleStartOffset = pRegion->SampleStartOffset;
             Volume *= attenuation;  
         }  
91    
92          // select channel mode (mono or stereo)          ri.EG2PreAttack        = pRegion->EG2PreAttack;
93          SYNTHESIS_MODE_SET_CHANNELS(SynthesisMode, pSample->Channels == 2);          ri.EG2Attack           = pRegion->EG2Attack;
94            ri.EG2Decay1           = pRegion->EG2Decay1;
95            ri.EG2Decay2           = pRegion->EG2Decay2;
96            ri.EG2Sustain          = pRegion->EG2Sustain;
97            ri.EG2InfiniteSustain  = pRegion->EG2InfiniteSustain;
98            ri.EG2Release          = pRegion->EG2Release;
99    
100          // get starting crossfade volume level          ri.EG3Attack     = pRegion->EG3Attack;
101          switch (pDimRgn->AttenuationController.type) {          ri.EG3Depth      = pRegion->EG3Depth;
102              case ::gig::attenuation_ctrl_t::type_channelaftertouch:          ri.VCFEnabled    = pRegion->VCFEnabled;
103                  CrossfadeVolume = 1.0f; //TODO: aftertouch not supported yet          ri.VCFType       = Filter::vcf_type_t(pRegion->VCFType);
104                  break;          ri.VCFResonance  = pRegion->VCFResonance;
             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;  
         }  
105    
106          PanLeft  = 1.0f - float(RTMath::Max(pDimRgn->Pan, 0)) /  63.0f;          ri.ReleaseTriggerDecay = 0.01053 * (256 >> pRegion->ReleaseTriggerDecay);
         PanRight = 1.0f - float(RTMath::Min(pDimRgn->Pan, 0)) / -64.0f;  
107    
108          Pos = pDimRgn->SampleStartOffset; // offset where we should start playback of sample (0 - 2000 sample points)          return ri;
109        }
110    
111          // Check if the sample needs disk streaming or is too short for that      Voice::InstrumentInfo Voice::GetInstrumentInfo() {
112          long cachedsamples = pSample->GetCache().Size / pSample->FrameSize;          InstrumentInfo ii;
113          DiskVoice          = cachedsamples < pSample->SamplesTotal;          ii.FineTune = GetGigEngineChannel()->pInstrument->FineTune;
114            ii.PitchbendRange = GetGigEngineChannel()->pInstrument->PitchbendRange;
         if (DiskVoice) { // voice to be streamed from disk  
             MaxRAMPos = cachedsamples - (pEngine->MaxSamplesPerCycle << CONFIG_MAX_PITCH) / pSample->Channels; //TODO: this calculation is too pessimistic and may better be moved to Render() method, so it calculates MaxRAMPos dependent to the current demand of sample points to be rendered (e.g. in case of JACK)  
   
             // check if there's a loop defined which completely fits into the cached (RAM) part of the sample  
             if (pSample->Loops && pSample->LoopEnd <= MaxRAMPos) {  
                 RAMLoop        = true;  
                 LoopCyclesLeft = pSample->LoopPlayCount;  
             }  
             else RAMLoop = false;  
115    
116              if (pDiskThread->OrderNewStream(&DiskStreamRef, pSample, MaxRAMPos, !RAMLoop) < 0) {          return ii;
117                  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"));  
         }  
118    
119        double Voice::GetSampleAttenuation() {
120            return pRegion->SampleAttenuation;
121        }
122    
123          // calculate initial pitch value      double Voice::GetVelocityAttenuation(uint8_t MIDIKeyVelocity) {
124          {          return pRegion->GetVelocityAttenuation(MIDIKeyVelocity);
125              double pitchbasecents = pDimRgn->FineTune + (int) pEngine->ScaleTuning[MIDIKey % 12];      }
             if (pDimRgn->PitchTrack) pitchbasecents += (MIDIKey - (int) pDimRgn->UnityNote) * 100;  
             this->PitchBase = RTMath::CentsToFreqRatio(pitchbasecents) * (double(pSample->SamplesPerSecond) / double(pEngine->pAudioOutputDevice->SampleRate()));  
             this->PitchBend = RTMath::CentsToFreqRatio(((double) PitchBend / 8192.0) * 200.0); // pitchbend wheel +-2 semitones = 200 cents  
         }  
126    
127          // the length of the decay and release curves are dependent on the velocity      double Voice::GetVelocityRelease(uint8_t MIDIKeyVelocity) {
128          const double velrelease = 1 / pDimRgn->GetVelocityRelease(itNoteOnEvent->Param.Note.Velocity);          return pRegion->GetVelocityRelease(MIDIKeyVelocity);
129        }
130    
131          // setup EG 1 (VCA EG)      void Voice::ProcessCCEvent(RTList<Event>::Iterator& itEvent) {
132          {          if (itEvent->Type == Event::type_control_change && itEvent->Param.CC.Controller) { // if (valid) MIDI control change event
133              // get current value of EG1 controller              if (pRegion->AttenuationController.type == ::gig::attenuation_ctrl_t::type_controlchange &&
134              double eg1controllervalue;                  itEvent->Param.CC.Controller == pRegion->AttenuationController.controller_number) {
135              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;  
136              }              }
             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);  
137          }          }
138        }
139    
140        void Voice::ProcessChannelPressureEvent(RTList<Event>::Iterator& itEvent) {
141          // setup EG 2 (VCF Cutoff EG)          if (itEvent->Type == Event::type_channel_pressure) { // if (valid) MIDI channel pressure (aftertouch) event
142          {              if (pRegion->AttenuationController.type == ::gig::attenuation_ctrl_t::type_channelaftertouch) {
143              // 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;  
144              }              }
             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);  
145          }          }
146        }
147    
148        void Voice::ProcessPolyphonicKeyPressureEvent(RTList<Event>::Iterator& itEvent) {
149            // Not used so far
150        }
151    
152          // setup LFO 1 (VCA LFO)      void Voice::ProcessCutoffEvent(RTList<Event>::Iterator& itEvent) {
153          {          int ccvalue = itEvent->Param.CC.Value;
154              uint16_t lfo1_internal_depth;          if (VCFCutoffCtrl.value == ccvalue) return;
155              switch (pDimRgn->LFO1Controller) {          VCFCutoffCtrl.value = ccvalue;
156                  case ::gig::lfo1_ctrl_internal:          if (pRegion->VCFCutoffControllerInvert)  ccvalue = 127 - ccvalue;
157                      lfo1_internal_depth  = pDimRgn->LFO1InternalDepth;          if (ccvalue < pRegion->VCFVelocityScale) ccvalue = pRegion->VCFVelocityScale;
158                      pLFO1->ExtController = 0; // no external controller          float cutoff = CutoffBase * float(ccvalue);
159                      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);  
         }  
160    
161            VCFCutoffCtrl.fvalue = cutoff; // needed for initialization of fFinalCutoff next time
162            fFinalCutoff = cutoff;
163        }
164    
165          // setup LFO 2 (VCF Cutoff LFO)      double Voice::CalculateCrossfadeVolume(uint8_t MIDIKeyVelocity) {
166          {          float crossfadeVolume;
167              uint16_t lfo2_internal_depth;          switch (pRegion->AttenuationController.type) {
168              switch (pDimRgn->LFO2Controller) {              case ::gig::attenuation_ctrl_t::type_channelaftertouch:
169                  case ::gig::lfo2_ctrl_internal:                  crossfadeVolume = Engine::CrossfadeCurve[CrossfadeAttenuation(GetGigEngineChannel()->ControllerTable[128])];
170                      lfo2_internal_depth  = pDimRgn->LFO2InternalDepth;                  break;
171                      pLFO2->ExtController = 0; // no external controller              case ::gig::attenuation_ctrl_t::type_velocity:
172                      break;                  crossfadeVolume = Engine::CrossfadeCurve[CrossfadeAttenuation(MIDIKeyVelocity)];
173                  case ::gig::lfo2_ctrl_modwheel:                  break;
174                      lfo2_internal_depth  = 0;              case ::gig::attenuation_ctrl_t::type_controlchange: //FIXME: currently not sample accurate
175                      pLFO2->ExtController = 1; // MIDI controller 1                  crossfadeVolume = Engine::CrossfadeCurve[CrossfadeAttenuation(GetGigEngineChannel()->ControllerTable[pRegion->AttenuationController.controller_number])];
176                      break;                  break;
177                  case ::gig::lfo2_ctrl_foot:              case ::gig::attenuation_ctrl_t::type_none: // no crossfade defined
178                      lfo2_internal_depth  = 0;              default:
179                      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);  
180          }          }
181    
182            return crossfadeVolume;
183        }
184    
185          // setup LFO 3 (VCO LFO)      double Voice::GetEG1ControllerValue(uint8_t MIDIKeyVelocity) {
186          {          double eg1controllervalue = 0;
187              uint16_t lfo3_internal_depth;          switch (pRegion->EG1Controller.type) {
188              switch (pDimRgn->LFO3Controller) {              case ::gig::eg1_ctrl_t::type_none: // no controller defined
189                  case ::gig::lfo3_ctrl_internal:                  eg1controllervalue = 0;
190                      lfo3_internal_depth  = pDimRgn->LFO3InternalDepth;                  break;
191                      pLFO3->ExtController = 0; // no external controller              case ::gig::eg1_ctrl_t::type_channelaftertouch:
192                      break;                  eg1controllervalue = GetGigEngineChannel()->ControllerTable[128];
193                  case ::gig::lfo3_ctrl_modwheel:                  break;
194                      lfo3_internal_depth  = 0;              case ::gig::eg1_ctrl_t::type_velocity:
195                      pLFO3->ExtController = 1; // MIDI controller 1                  eg1controllervalue = MIDIKeyVelocity;
196                      break;                  break;
197                  case ::gig::lfo3_ctrl_aftertouch:              case ::gig::eg1_ctrl_t::type_controlchange: // MIDI control change controller
198                      lfo3_internal_depth  = 0;                  eg1controllervalue = GetGigEngineChannel()->ControllerTable[pRegion->EG1Controller.controller_number];
199                      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);  
200          }          }
201            if (pRegion->EG1ControllerInvert) eg1controllervalue = 127 - eg1controllervalue;
202    
203            return eg1controllervalue;
204        }
205    
206          #if CONFIG_FORCE_FILTER      Voice::EGInfo Voice::CalculateEG1ControllerInfluence(double eg1ControllerValue) {
207          const bool bUseFilter = true;          EGInfo eg;
208          #else // use filter only if instrument file told so          // (eg1attack is different from the others)
209          const bool bUseFilter = pDimRgn->VCFEnabled;          if (pRegion->EG1Attack < 1e-8 && // attack in gig == 0
210          #endif // CONFIG_FORCE_FILTER              (pRegion->EG1ControllerAttackInfluence == 0 ||
211          SYNTHESIS_MODE_SET_FILTER(SynthesisMode, bUseFilter);               eg1ControllerValue <= 10)) { // strange GSt special case
212          if (bUseFilter) {              eg.Attack = 0; // this will force the attack to be 0 in the call to EG1.trigger
213              #ifdef CONFIG_OVERRIDE_CUTOFF_CTRL          } else {
214              VCFCutoffCtrl.controller = CONFIG_OVERRIDE_CUTOFF_CTRL;              eg.Attack  = (pRegion->EG1ControllerAttackInfluence)  ?
215              #else // use the one defined in the instrument file                  1 + 0.031 * (double) (pRegion->EG1ControllerAttackInfluence == 1 ?
216              switch (pDimRgn->VCFCutoffController) {                                        1 : 1 << pRegion->EG1ControllerAttackInfluence) * eg1ControllerValue : 1.0;
217                  case ::gig::vcf_cutoff_ctrl_modwheel:          }
218                      VCFCutoffCtrl.controller = 1;          eg.Decay   = (pRegion->EG1ControllerDecayInfluence)   ? 1 + 0.00775 * (double) (1 << pRegion->EG1ControllerDecayInfluence)   * eg1ControllerValue : 1.0;
219                      break;          eg.Release = (pRegion->EG1ControllerReleaseInfluence) ? 1 + 0.00775 * (double) (1 << pRegion->EG1ControllerReleaseInfluence) * eg1ControllerValue : 1.0;
220                  case ::gig::vcf_cutoff_ctrl_effect1:  
221                      VCFCutoffCtrl.controller = 12;          return eg;
222                      break;      }
223                  case ::gig::vcf_cutoff_ctrl_effect2:  
224                      VCFCutoffCtrl.controller = 13;      double Voice::GetEG2ControllerValue(uint8_t MIDIKeyVelocity) {
225                      break;          double eg2controllervalue = 0;
226                  case ::gig::vcf_cutoff_ctrl_breath:          switch (pRegion->EG2Controller.type) {
227                      VCFCutoffCtrl.controller = 2;              case ::gig::eg2_ctrl_t::type_none: // no controller defined
228                      break;                  eg2controllervalue = 0;
229                  case ::gig::vcf_cutoff_ctrl_foot:                  break;
230                      VCFCutoffCtrl.controller = 4;              case ::gig::eg2_ctrl_t::type_channelaftertouch:
231                      break;                  eg2controllervalue = GetGigEngineChannel()->ControllerTable[128];
232                  case ::gig::vcf_cutoff_ctrl_sustainpedal:                  break;
233                      VCFCutoffCtrl.controller = 64;              case ::gig::eg2_ctrl_t::type_velocity:
234                      break;                  eg2controllervalue = MIDIKeyVelocity;
235                  case ::gig::vcf_cutoff_ctrl_softpedal:                  break;
236                      VCFCutoffCtrl.controller = 67;              case ::gig::eg2_ctrl_t::type_controlchange: // MIDI control change controller
237                      break;                  eg2controllervalue = GetGigEngineChannel()->ControllerTable[pRegion->EG2Controller.controller_number];
238                  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;  
239          }          }
240            if (pRegion->EG2ControllerInvert) eg2controllervalue = 127 - eg2controllervalue;
241    
242          return 0; // success          return eg2controllervalue;
243      }      }
244    
245      /**      Voice::EGInfo Voice::CalculateEG2ControllerInfluence(double eg2ControllerValue) {
246       *  Renders the audio data for this voice for the current audio fragment.          EGInfo eg;
247       *  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;
248       *  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;
249       *  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);  
         }  
250    
251          if (SYNTHESIS_MODE_GET_FILTER(SynthesisMode))          return eg;
252              CalculateBiquadParameters(Samples); // calculate the final biquad filter parameters      }
   
         switch (this->PlaybackState) {  
253    
254              case playback_state_init:      void Voice::InitLFO1() {
255                  this->PlaybackState = playback_state_ram; // we always start playback from RAM cache and switch then to disk if needed          uint16_t lfo1_internal_depth;
256                  // no break - continue with playback_state_ram          switch (pRegion->LFO1Controller) {
257                case ::gig::lfo1_ctrl_internal:
258              case playback_state_ram: {                  lfo1_internal_depth  = pRegion->LFO1InternalDepth;
259                      if (RAMLoop) SYNTHESIS_MODE_SET_LOOP(SynthesisMode, true); // enable looping                  pLFO1->ExtController = 0; // no external controller
260                    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;  
                     }  
                 }  
261                  break;                  break;
262                case ::gig::lfo1_ctrl_modwheel:
263              case playback_state_end:                  lfo1_internal_depth  = 0;
264                  std::cerr << "gig::Voice::Render(): entered with playback_state_end, this is a bug!\n" << std::flush;                  pLFO1->ExtController = 1; // MIDI controller 1
265                    bLFO1Enabled         = (pRegion->LFO1ControlDepth > 0);
266                    break;
267                case ::gig::lfo1_ctrl_breath:
268                    lfo1_internal_depth  = 0;
269                    pLFO1->ExtController = 2; // MIDI controller 2
270                    bLFO1Enabled         = (pRegion->LFO1ControlDepth > 0);
271                    break;
272                case ::gig::lfo1_ctrl_internal_modwheel:
273                    lfo1_internal_depth  = pRegion->LFO1InternalDepth;
274                    pLFO1->ExtController = 1; // MIDI controller 1
275                    bLFO1Enabled         = (lfo1_internal_depth > 0 || pRegion->LFO1ControlDepth > 0);
276                  break;                  break;
277                case ::gig::lfo1_ctrl_internal_breath:
278                    lfo1_internal_depth  = pRegion->LFO1InternalDepth;
279                    pLFO1->ExtController = 2; // MIDI controller 2
280                    bLFO1Enabled         = (lfo1_internal_depth > 0 || pRegion->LFO1ControlDepth > 0);
281                    break;
282                default:
283                    lfo1_internal_depth  = 0;
284                    pLFO1->ExtController = 0; // no external controller
285                    bLFO1Enabled         = false;
286            }
287            if (bLFO1Enabled) {
288                pLFO1->trigger(fromGigLfoWave(pRegion->LFO1WaveForm),
289                               pRegion->LFO1Frequency,
290                               pRegion->LFO1Phase,
291                               LFO::start_level_mid, // see https://sourceforge.net/p/linuxsampler/mailman/linuxsampler-devel/thread/2189307.cNP0Xbctxq%40silver/#msg36774029
292                               lfo1_internal_depth,
293                               pRegion->LFO1ControlDepth,
294                               pRegion->LFO1FlipPhase,
295                               pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
296                pLFO1->updateByMIDICtrlValue(pLFO1->ExtController ? GetGigEngineChannel()->ControllerTable[pLFO1->ExtController] : 0);
297                pLFO1->setScriptDepthFactor(
298                    pNote->Override.AmpLFODepth.Value,
299                    pNote->Override.AmpLFODepth.Final
300                );
301                if (pNote->Override.AmpLFOFreq.isFinal())
302                    pLFO1->setScriptFrequencyFinal(
303                        pNote->Override.AmpLFOFreq.Value, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE
304                    );
305                else
306                    pLFO1->setScriptFrequencyFactor(
307                        pNote->Override.AmpLFOFreq.Value, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE
308                    );
309          }          }
310        }
311    
312          // Reset synthesis event lists (except VCO, as VCO events apply channel wide currently)      void Voice::InitLFO2() {
313          pEngineChannel->pSynthesisEvents[Event::destination_vca]->clear();          uint16_t lfo2_internal_depth;
314          pEngineChannel->pSynthesisEvents[Event::destination_vcfc]->clear();          switch (pRegion->LFO2Controller) {
315          pEngineChannel->pSynthesisEvents[Event::destination_vcfr]->clear();              case ::gig::lfo2_ctrl_internal:
316                    lfo2_internal_depth  = pRegion->LFO2InternalDepth;
317          // Reset delay                  pLFO2->ExtController = 0; // no external controller
318          Delay = 0;                  bLFO2Enabled         = (lfo2_internal_depth > 0);
319                    break;
320          itTriggerEvent = Pool<Event>::Iterator();              case ::gig::lfo2_ctrl_modwheel:
321                    lfo2_internal_depth  = 0;
322          // If sample stream or release stage finished, kill the voice                  pLFO2->ExtController = 1; // MIDI controller 1
323          if (PlaybackState == playback_state_end || pEG1->GetStage() == EGADSR::stage_end) KillImmediately();                  bLFO2Enabled         = (pRegion->LFO2ControlDepth > 0);
324      }                  break;
325                case ::gig::lfo2_ctrl_foot:
326      /**                  lfo2_internal_depth  = 0;
327       *  Resets voice variables. Should only be called if rendering process is                  pLFO2->ExtController = 4; // MIDI controller 4
328       *  suspended / not running.                  bLFO2Enabled         = (pRegion->LFO2ControlDepth > 0);
329       */                  break;
330      void Voice::Reset() {              case ::gig::lfo2_ctrl_internal_modwheel:
331          pLFO1->Reset();                  lfo2_internal_depth  = pRegion->LFO2InternalDepth;
332          pLFO2->Reset();                  pLFO2->ExtController = 1; // MIDI controller 1
333          pLFO3->Reset();                  bLFO2Enabled         = (lfo2_internal_depth > 0 || pRegion->LFO2ControlDepth > 0);
334          FilterLeft.Reset();                  break;
335          FilterRight.Reset();              case ::gig::lfo2_ctrl_internal_foot:
336          DiskStreamRef.pStream = NULL;                  lfo2_internal_depth  = pRegion->LFO2InternalDepth;
337          DiskStreamRef.hStream = 0;                  pLFO2->ExtController = 4; // MIDI controller 4
338          DiskStreamRef.State   = Stream::state_unused;                  bLFO2Enabled         = (lfo2_internal_depth > 0 || pRegion->LFO2ControlDepth > 0);
339          DiskStreamRef.OrderID = 0;                  break;
340          PlaybackState = playback_state_end;              default:
341          itTriggerEvent = Pool<Event>::Iterator();                  lfo2_internal_depth  = 0;
342          itKillEvent    = Pool<Event>::Iterator();                  pLFO2->ExtController = 0; // no external controller
343      }                  bLFO2Enabled         = false;
344            }
345      /**          if (bLFO2Enabled) {
346       *  Process the control change event lists of the engine for the current              pLFO2->trigger(fromGigLfoWave(pRegion->LFO2WaveForm),
347       *  audio fragment. Event values will be applied to the synthesis parameter                             pRegion->LFO2Frequency,
348       *  matrix.                             pRegion->LFO2Phase,
349       *                             LFO::start_level_mid, // see https://sourceforge.net/p/linuxsampler/mailman/linuxsampler-devel/thread/2189307.cNP0Xbctxq%40silver/#msg36774029
350       *  @param Samples - number of samples to be rendered in this audio fragment cycle                             lfo2_internal_depth,
351       */                             pRegion->LFO2ControlDepth,
352      void Voice::ProcessEvents(uint Samples) {                             pRegion->LFO2FlipPhase,
353                               pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
354          // dispatch control change events              pLFO2->updateByMIDICtrlValue(pLFO2->ExtController ? GetGigEngineChannel()->ControllerTable[pLFO2->ExtController] : 0);
355          RTList<Event>::Iterator itCCEvent = pEngineChannel->pCCEvents->first();              pLFO2->setScriptDepthFactor(
356          if (Delay) { // skip events that happened before this voice was triggered                  pNote->Override.CutoffLFODepth.Value,
357              while (itCCEvent && itCCEvent->FragmentPos() <= Delay) ++itCCEvent;                  pNote->Override.CutoffLFODepth.Final
358                );
359                if (pNote->Override.CutoffLFOFreq.isFinal())
360                    pLFO2->setScriptFrequencyFinal(pNote->Override.CutoffLFOFreq.Value, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
361                else
362                    pLFO2->setScriptFrequencyFactor(pNote->Override.CutoffLFOFreq.Value, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
363          }          }
364          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;  
                 }  
             }  
365    
366              ++itCCEvent;      void Voice::InitLFO3() {
367            uint16_t lfo3_internal_depth;
368            switch (pRegion->LFO3Controller) {
369                case ::gig::lfo3_ctrl_internal:
370                    lfo3_internal_depth  = pRegion->LFO3InternalDepth;
371                    pLFO3->ExtController = 0; // no external controller
372                    bLFO3Enabled         = (lfo3_internal_depth > 0);
373                    break;
374                case ::gig::lfo3_ctrl_modwheel:
375                    lfo3_internal_depth  = 0;
376                    pLFO3->ExtController = 1; // MIDI controller 1
377                    bLFO3Enabled         = (pRegion->LFO3ControlDepth > 0);
378                    break;
379                case ::gig::lfo3_ctrl_aftertouch:
380                    lfo3_internal_depth  = 0;
381                    pLFO3->ExtController = CTRL_TABLE_IDX_AFTERTOUCH;
382                    bLFO3Enabled         = true;
383                    break;
384                case ::gig::lfo3_ctrl_internal_modwheel:
385                    lfo3_internal_depth  = pRegion->LFO3InternalDepth;
386                    pLFO3->ExtController = 1; // MIDI controller 1
387                    bLFO3Enabled         = (lfo3_internal_depth > 0 || pRegion->LFO3ControlDepth > 0);
388                    break;
389                case ::gig::lfo3_ctrl_internal_aftertouch:
390                    lfo3_internal_depth  = pRegion->LFO3InternalDepth;
391                    pLFO3->ExtController = CTRL_TABLE_IDX_AFTERTOUCH;
392                    bLFO3Enabled         = (lfo3_internal_depth > 0 || pRegion->LFO3ControlDepth > 0);
393                    break;
394                default:
395                    lfo3_internal_depth  = 0;
396                    pLFO3->ExtController = 0; // no external controller
397                    bLFO3Enabled         = false;
398            }
399            if (bLFO3Enabled) {
400                pLFO3->trigger(fromGigLfoWave(pRegion->LFO3WaveForm),
401                               pRegion->LFO3Frequency,
402                               pRegion->LFO3Phase,
403                               LFO::start_level_max, // see https://sourceforge.net/p/linuxsampler/mailman/linuxsampler-devel/thread/2189307.cNP0Xbctxq%40silver/#msg36774029
404                               lfo3_internal_depth,
405                               pRegion->LFO3ControlDepth,
406                               pRegion->LFO3FlipPhase,
407                               pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
408                pLFO3->updateByMIDICtrlValue(pLFO3->ExtController ? GetGigEngineChannel()->ControllerTable[pLFO3->ExtController] : 0);
409                pLFO3->setScriptDepthFactor(
410                    pNote->Override.PitchLFODepth.Value,
411                    pNote->Override.PitchLFODepth.Final
412                );
413                if (pNote->Override.PitchLFOFreq.isFinal())
414                    pLFO3->setScriptFrequencyFinal(pNote->Override.PitchLFOFreq.Value, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
415                else
416                    pLFO3->setScriptFrequencyFactor(pNote->Override.PitchLFOFreq.Value, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
417          }          }
418        }
419    
420        float Voice::CalculateCutoffBase(uint8_t MIDIKeyVelocity) {
421          // process pitch events          float cutoff = pRegion->GetVelocityCutoff(MIDIKeyVelocity);
422          {          if (pRegion->VCFKeyboardTracking) {
423              RTList<Event>* pVCOEventList = pEngineChannel->pSynthesisEvents[Event::destination_vco];              cutoff *= RTMath::CentsToFreqRatioUnlimited((MIDIKey() - pRegion->VCFKeyboardTrackingBreakpoint) * 100);
424              RTList<Event>::Iterator itVCOEvent = pVCOEventList->first();          }
425              if (Delay) { // skip events that happened before this voice was triggered          return cutoff;
426                  while (itVCOEvent && itVCOEvent->FragmentPos() <= Delay) ++itVCOEvent;      }
427              }  
428              // apply old pitchbend value until first pitch event occurs      float Voice::CalculateFinalCutoff(float cutoffBase) {
429              if (this->PitchBend != 1.0) {          int cvalue;
430                  uint end = (itVCOEvent) ? itVCOEvent->FragmentPos() : Samples;          if (VCFCutoffCtrl.controller) {
431                  for (uint i = Delay; i < end; i++) {              cvalue = GetGigEngineChannel()->ControllerTable[VCFCutoffCtrl.controller];
432                      pEngine->pSynthesisParameters[Event::destination_vco][i] *= this->PitchBend;              if (pRegion->VCFCutoffControllerInvert) cvalue = 127 - cvalue;
433                  }              // VCFVelocityScale in this case means Minimum cutoff
434              }              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);  
             }  
435          }          }
436            else {
437          // 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;  
438          }          }
439            float fco = cutoffBase * float(cvalue);
440            if (fco > 127.0f) fco = 127.0f;
441    
442          // process filter cutoff events          return fco;
443          {      }
             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;  
                 }  
444    
445                  itCutoffEvent = itNextCutoffEvent;      uint8_t Voice::GetVCFCutoffCtrl() {
446              }          uint8_t ctrl;
447              if (!pCutoffEventList->isEmpty()) VCFCutoffCtrl.fvalue = cutoff; // needed for initialization of parameter matrix next time          switch (pRegion->VCFCutoffController) {
448                case ::gig::vcf_cutoff_ctrl_modwheel:
449                    ctrl = 1;
450                    break;
451                case ::gig::vcf_cutoff_ctrl_effect1:
452                    ctrl = 12;
453                    break;
454                case ::gig::vcf_cutoff_ctrl_effect2:
455                    ctrl = 13;
456                    break;
457                case ::gig::vcf_cutoff_ctrl_breath:
458                    ctrl = 2;
459                    break;
460                case ::gig::vcf_cutoff_ctrl_foot:
461                    ctrl = 4;
462                    break;
463                case ::gig::vcf_cutoff_ctrl_sustainpedal:
464                    ctrl = 64;
465                    break;
466                case ::gig::vcf_cutoff_ctrl_softpedal:
467                    ctrl = 67;
468                    break;
469                case ::gig::vcf_cutoff_ctrl_genpurpose7:
470                    ctrl = 82;
471                    break;
472                case ::gig::vcf_cutoff_ctrl_genpurpose8:
473                    ctrl = 83;
474                    break;
475                case ::gig::vcf_cutoff_ctrl_aftertouch:
476                    ctrl = CTRL_TABLE_IDX_AFTERTOUCH;
477                    break;
478                case ::gig::vcf_cutoff_ctrl_none:
479                default:
480                    ctrl = 0;
481                    break;
482          }          }
483    
484          // 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  
         }  
485      }      }
486    
487      /**      uint8_t Voice::GetVCFResonanceCtrl() {
488       * Calculate all necessary, final biquad filter parameters.          uint8_t ctrl;
489       *          switch (pRegion->VCFResonanceController) {
490       * @param Samples - number of samples to be rendered in this audio fragment cycle              case ::gig::vcf_res_ctrl_genpurpose3:
491       */                  ctrl = 18;
492      void Voice::CalculateBiquadParameters(uint Samples) {                  break;
493          biquad_param_t bqbase;              case ::gig::vcf_res_ctrl_genpurpose4:
494          biquad_param_t bqmain;                  ctrl = 19;
495          float prev_cutoff = pEngine->pSynthesisParameters[Event::destination_vcfc][0];                  break;
496          float prev_res    = pEngine->pSynthesisParameters[Event::destination_vcfr][0];              case ::gig::vcf_res_ctrl_genpurpose5:
497          FilterLeft.SetParameters( &bqbase, &bqmain, prev_cutoff + CONFIG_FILTER_CUTOFF_MIN, prev_res, pEngine->SampleRate);                  ctrl = 80;
498          FilterRight.SetParameters(&bqbase, &bqmain, prev_cutoff + CONFIG_FILTER_CUTOFF_MIN, prev_res, pEngine->SampleRate);                  break;
499          pEngine->pBasicFilterParameters[0] = bqbase;              case ::gig::vcf_res_ctrl_genpurpose6:
500          pEngine->pMainFilterParameters[0]  = bqmain;                  ctrl = 81;
501                    break;
502          float* bq;              case ::gig::vcf_res_ctrl_none:
503          for (int i = 1; i < Samples; i++) {              default:
504              // 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;  
505          }          }
     }  
506    
507      /**          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();  
508      }      }
509    
510      /**      void Voice::TriggerEG1(const EGInfo& egInfo, double velrelease, double velocityAttenuation, uint sampleRate, uint8_t velocity) {
511       *  Kill the voice in regular sense. Let the voice render audio until          EG1.setStateOptions(
512       *  the kill event actually occured and then fade down the volume level              pRegion->EG1Options.AttackCancel,
513       *  very quickly and let the voice die finally. Unlike a normal release              pRegion->EG1Options.AttackHoldCancel,
514       *  of a voice, a kill process cannot be cancalled and is therefore              pRegion->EG1Options.Decay1Cancel,
515       *  usually used for voice stealing and key group conflicts.              pRegion->EG1Options.Decay2Cancel,
516       *              pRegion->EG1Options.ReleaseCancel
517       *  @param itKillEvent - event which caused the voice to be killed          );
518       */          EG1.trigger(pRegion->EG1PreAttack,
519      void Voice::Kill(Pool<Event>::Iterator& itKillEvent) {                      (pNote && pNote->Override.Attack.isFinal()) ?
520          #if CONFIG_DEVMODE                          pNote->Override.Attack.Value :
521          if (!itKillEvent) dmsg(1,("gig::Voice::Kill(): ERROR, !itKillEvent !!!\n"));                          RTMath::Max(pRegion->EG1Attack, 0.0316) * egInfo.Attack,
522          if (itKillEvent && !itKillEvent.isValid()) dmsg(1,("gig::Voice::Kill(): ERROR, itKillEvent invalid !!!\n"));                      pRegion->EG1Hold,
523          #endif // CONFIG_DEVMODE                      (pNote && pNote->Override.Decay.isFinal()) ?
524                            pNote->Override.Decay.Value :
525          if (itTriggerEvent && itKillEvent->FragmentPos() <= itTriggerEvent->FragmentPos()) return;                          pRegion->EG1Decay1 * egInfo.Decay * velrelease,
526          this->itKillEvent = itKillEvent;                      (pNote && pNote->Override.Decay.isFinal()) ?
527                            pNote->Override.Decay.Value :
528                            pRegion->EG1Decay2 * egInfo.Decay * velrelease,
529                        pRegion->EG1InfiniteSustain,
530                        (pNote && pNote->Override.Sustain.Final) ?
531                            uint(pNote->Override.Sustain.Value * 1000.f) :
532                            pRegion->EG1Sustain * (pNote ? pNote->Override.Sustain.Value : 1.f),
533                        (pNote && pNote->Override.Release.isFinal()) ?
534                            pNote->Override.Release.Value :
535                            RTMath::Max(pRegion->EG1Release * velrelease, 0.014) * egInfo.Release,
536                        velocityAttenuation,
537                        sampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
538        }
539    
540        void Voice::TriggerEG2(const EGInfo& egInfo, double velrelease, double velocityAttenuation, uint sampleRate, uint8_t velocity) {
541            EG2.setStateOptions(
542                pRegion->EG2Options.AttackCancel,
543                pRegion->EG2Options.AttackHoldCancel,
544                pRegion->EG2Options.Decay1Cancel,
545                pRegion->EG2Options.Decay2Cancel,
546                pRegion->EG2Options.ReleaseCancel
547            );
548            EG2.trigger(uint(RgnInfo.EG2PreAttack),
549                        (pNote && pNote->Override.CutoffAttack.isFinal()) ?
550                            pNote->Override.CutoffAttack.Value :
551                            RgnInfo.EG2Attack * egInfo.Attack,
552                        false,
553                        (pNote && pNote->Override.CutoffDecay.isFinal()) ?
554                            pNote->Override.CutoffDecay.Value :
555                            RgnInfo.EG2Decay1 * egInfo.Decay * velrelease,
556                        (pNote && pNote->Override.CutoffDecay.isFinal()) ?
557                            pNote->Override.CutoffDecay.Value :
558                            RgnInfo.EG2Decay2 * egInfo.Decay * velrelease,
559                        RgnInfo.EG2InfiniteSustain,
560                        (pNote && pNote->Override.CutoffSustain.Final) ?
561                            uint(pNote->Override.CutoffSustain.Value * 1000.f) :
562                            uint(RgnInfo.EG2Sustain),
563                        (pNote && pNote->Override.CutoffRelease.isFinal()) ?
564                            pNote->Override.CutoffRelease.Value :
565                            RgnInfo.EG2Release * egInfo.Release * velrelease,
566                        velocityAttenuation,
567                        sampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
568        }
569    
570        void Voice::ProcessGroupEvent(RTList<Event>::Iterator& itEvent) {
571            dmsg(4,("Voice %p processGroupEvents event type=%d", (void*)this, itEvent->Type));
572    
573            // TODO: The SustainPedal condition could be wrong, maybe the
574            // check should be if this Voice is in release stage or is a
575            // release sample instead. Need to test this in GSt.
576            // -- Andreas
577            //
578            // Commented sustain pedal check out. I don't think voices of the same
579            // note should be stopped at all, because it doesn't sound naturally
580            // with a drumkit.
581            // -- Christian, 2013-01-08
582            if (itEvent->Param.Note.Key != HostKey() /*||
583                !GetGigEngineChannel()->SustainPedal*/) {
584                dmsg(4,("Voice %p - kill", (void*)this));
585    
586                // kill the voice fast
587                pEG1->enterFadeOutStage();
588            }
589        }
590    
591        void Voice::CalculateFadeOutCoeff(float FadeOutTime, float SampleRate) {
592            EG1.CalculateFadeOutCoeff(FadeOutTime, SampleRate);
593        }
594    
595        int Voice::CalculatePan(uint8_t pan) {
596            int p;
597            // Gst behaviour: -64 and 63 are special cases
598            if (RgnInfo.Pan == -64)     p = pan * 2 - 127;
599            else if (RgnInfo.Pan == 63) p = pan * 2;
600            else                        p = pan + RgnInfo.Pan;
601    
602            if (p < 0) return 0;
603            if (p > 127) return 127;
604            return p;
605        }
606    
607        release_trigger_t Voice::GetReleaseTriggerFlags() {
608            release_trigger_t flags =
609                (pRegion->NoNoteOffReleaseTrigger) ?
610                    release_trigger_none : release_trigger_noteoff; //HACK: currently this method is actually only called by EngineBase if it already knows that this voice requires release trigger, so I took the short way instead of checking (again) the existence of a ::gig::dimension_releasetrigger
611            switch (pRegion->SustainReleaseTrigger) {
612                case ::gig::sust_rel_trg_none:
613                    break;
614                case ::gig::sust_rel_trg_maxvelocity:
615                    flags |= release_trigger_sustain_maxvelocity;
616                    break;
617                case ::gig::sust_rel_trg_keyvelocity:
618                    flags |= release_trigger_sustain_keyvelocity;
619                    break;
620            }
621            return flags;
622      }      }
623    
624  }} // namespace LinuxSampler::gig  }} // namespace LinuxSampler::gig
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