/[svn]/linuxsampler/trunk/src/engines/gig/Voice.cpp
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Diff of /linuxsampler/trunk/src/engines/gig/Voice.cpp

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revision 56 by schoenebeck, Tue Apr 27 09:21:58 2004 UTC revision 3444 by schoenebeck, Sun Dec 23 19:32:11 2018 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 - 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 20  Line 23 
23   *   MA  02111-1307  USA                                                   *   *   MA  02111-1307  USA                                                   *
24   ***************************************************************************/   ***************************************************************************/
25    
26  #include "EGADSR.h"  #include "../../common/Features.h"
27  #include "Manipulator.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    
     // FIXME: no support for layers (nor crossfades) yet  
   
     const float Voice::FILTER_CUTOFF_COEFF(CalculateFilterCutoffCoeff());  
   
     float Voice::CalculateFilterCutoffCoeff() {  
         return log(FILTER_CUTOFF_MIN / FILTER_CUTOFF_MAX);  
     }  
   
36      Voice::Voice() {      Voice::Voice() {
37          pEngine     = NULL;          pEngine = NULL;
38          pDiskThread = NULL;          pEG1 = &EG1;
39          Active = false;          pEG2 = &EG2;
         pEG1   = NULL;  
         pEG2   = NULL;  
         pEG3   = NULL;  
         pVCAManipulator  = NULL;  
         pVCFCManipulator = NULL;  
         pVCOManipulator  = NULL;  
         pLFO1  = NULL;  
         pLFO2  = NULL;  
         pLFO3  = NULL;  
40      }      }
41    
42      Voice::~Voice() {      Voice::~Voice() {
43          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::SetOutput(AudioOutputDevice* pAudioOutputDevice) {  
         this->pOutputLeft        = pAudioOutputDevice->Channel(0)->Buffer();  
         this->pOutputRight       = pAudioOutputDevice->Channel(1)->Buffer();  
         this->MaxSamplesPerCycle = pAudioOutputDevice->MaxSamplesPerCycle();  
         this->SampleRate         = pAudioOutputDevice->SampleRate();  
     }  
   
     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(1,("Voice::SetEngine()\n"));  
     }  
   
     /**  
      *  Initializes and triggers the voice, a disk stream will be launched if  
      *  needed.  
      *  
      *  @param pNoteOnEvent - 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  
      *  @returns            0 on success, a value < 0 if something failed  
      */  
     int Voice::Trigger(Event* pNoteOnEvent, int PitchBend, ::gig::Instrument* pInstrument) {  
         if (!pInstrument) {  
            dmsg(1,("voice::trigger: !pInstrument\n"));  
            exit(EXIT_FAILURE);  
         }  
   
         Active          = true;  
         MIDIKey         = pNoteOnEvent->Key;  
         pRegion         = pInstrument->GetRegion(MIDIKey);  
         PlaybackState   = playback_state_ram; // we always start playback from RAM cache and switch then to disk if needed  
         Pos             = 0;  
         Delay           = pNoteOnEvent->FragmentPos();  
         pTriggerEvent   = pNoteOnEvent;  
   
         if (!pRegion) {  
             std::cerr << "Audio Thread: No Region defined for MIDI key " << MIDIKey << std::endl << std::flush;  
             Kill();  
             return -1;  
         }  
   
         //TODO: current MIDI controller values are not taken into account yet  
         ::gig::DimensionRegion* pDimRgn = NULL;  
         for (int i = pRegion->Dimensions - 1; i >= 0; i--) { // Check if instrument has a velocity split  
             if (pRegion->pDimensionDefinitions[i].dimension == ::gig::dimension_velocity) {  
                 uint DimValues[5] = {0,0,0,0,0};  
                     DimValues[i] = pNoteOnEvent->Velocity;  
                 pDimRgn = pRegion->GetDimensionRegionByValue(DimValues[4],DimValues[3],DimValues[2],DimValues[1],DimValues[0]);  
                 break;  
             }  
         }  
         if (!pDimRgn) { // if there was no velocity split  
             pDimRgn = pRegion->GetDimensionRegionByValue(0,0,0,0,0);  
         }  
44    
45          pSample = pDimRgn->pSample; // sample won't change until the voice is finished      EngineChannel* Voice::GetGigEngineChannel() {
46            return static_cast<EngineChannel*>(pEngineChannel);
47        }
48    
49          // Check if the sample needs disk streaming or is too short for that      void Voice::SetEngine(LinuxSampler::Engine* pEngine) {
50          long cachedsamples = pSample->GetCache().Size / pSample->FrameSize;          Engine* engine = static_cast<Engine*>(pEngine);
51          DiskVoice          = cachedsamples < pSample->SamplesTotal;          this->pEngine     = engine;
52            this->pDiskThread = engine->pDiskThread;
53            dmsg(6,("Voice::SetEngine()\n"));
54        }
55    
56          if (DiskVoice) { // voice to be streamed from disk      Voice::SampleInfo Voice::GetSampleInfo() {
57              MaxRAMPos = cachedsamples - (MaxSamplesPerCycle << 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)          SampleInfo si;
58            si.SampleRate       = pSample->SamplesPerSecond;
59            si.ChannelCount     = pSample->Channels;
60            si.FrameSize        = pSample->FrameSize;
61            si.BitDepth         = pSample->BitDepth;
62            si.TotalFrameCount  = (uint)pSample->SamplesTotal;
63    
64              // check if there's a loop defined which completely fits into the cached (RAM) part of the sample          si.HasLoops       = pRegion->SampleLoops;
65              if (pSample->Loops && pSample->LoopEnd <= MaxRAMPos) {          si.LoopStart      = (si.HasLoops) ? pRegion->pSampleLoops[0].LoopStart  : 0;
66                  RAMLoop        = true;          si.LoopLength     = (si.HasLoops) ? pRegion->pSampleLoops[0].LoopLength : 0;
67                  LoopCyclesLeft = pSample->LoopPlayCount;          si.LoopPlayCount  = pSample->LoopPlayCount;
68              }          si.Unpitched      = !pRegion->PitchTrack;
             else RAMLoop = false;  
   
             if (pDiskThread->OrderNewStream(&DiskStreamRef, pSample, MaxRAMPos, !RAMLoop) < 0) {  
                 dmsg(1,("Disk stream order failed!\n"));  
                 Kill();  
                 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"));  
         }  
69    
70            return si;
71        }
72    
73          // calculate initial pitch value      Voice::RegionInfo Voice::GetRegionInfo() {
74          {          RegionInfo ri;
75              double pitchbasecents = pDimRgn->FineTune * 10;          ri.UnityNote = pRegion->UnityNote;
76              if (pDimRgn->PitchTrack) pitchbasecents += (MIDIKey - (int) pDimRgn->UnityNote) * 100;          ri.FineTune  = pRegion->FineTune;
77              this->PitchBase = RTMath::CentsToFreqRatio(pitchbasecents);          ri.Pan       = pRegion->Pan;
78              this->PitchBend = RTMath::CentsToFreqRatio(((double) PitchBend / 8192.0) * 200.0); // pitchbend wheel +-2 semitones = 200 cents          ri.SampleStartOffset = pRegion->SampleStartOffset;
         }  
79    
80            ri.EG2PreAttack        = pRegion->EG2PreAttack;
81            ri.EG2Attack           = pRegion->EG2Attack;
82            ri.EG2Decay1           = pRegion->EG2Decay1;
83            ri.EG2Decay2           = pRegion->EG2Decay2;
84            ri.EG2Sustain          = pRegion->EG2Sustain;
85            ri.EG2InfiniteSustain  = pRegion->EG2InfiniteSustain;
86            ri.EG2Release          = pRegion->EG2Release;
87    
88          Volume = pDimRgn->GetVelocityAttenuation(pNoteOnEvent->Velocity) / 32768.0f; // we downscale by 32768 to convert from int16 value range to DSP value range (which is -1.0..1.0)          ri.EG3Attack     = pRegion->EG3Attack;
89            ri.EG3Depth      = pRegion->EG3Depth;
90            ri.VCFEnabled    = pRegion->VCFEnabled;
91          // setup EG 1 (VCA EG)          ri.VCFType       = Filter::vcf_type_t(pRegion->VCFType);
92          {          ri.VCFResonance  = pRegion->VCFResonance;
             // get current value of EG1 controller  
             double eg1controllervalue;  
             switch (pDimRgn->EG1Controller.type) {  
                 case ::gig::eg1_ctrl_t::type_none: // no controller defined  
                     eg1controllervalue = 0;  
                     break;  
                 case ::gig::eg1_ctrl_t::type_channelaftertouch:  
                     eg1controllervalue = 0; // TODO: aftertouch not yet supported  
                     break;  
                 case ::gig::eg1_ctrl_t::type_velocity:  
                     eg1controllervalue = pNoteOnEvent->Velocity;  
                     break;  
                 case ::gig::eg1_ctrl_t::type_controlchange: // MIDI control change controller  
                     eg1controllervalue = pEngine->ControllerTable[pDimRgn->EG1Controller.controller_number];  
                     break;  
             }  
             if (pDimRgn->EG1ControllerInvert) eg1controllervalue = 127 - eg1controllervalue;  
93    
94              // calculate influence of EG1 controller on EG1's parameters (TODO: needs to be fine tuned)          ri.ReleaseTriggerDecay = 0.01053 * (256 >> pRegion->ReleaseTriggerDecay);
             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,  
                           pDimRgn->EG1Decay2 + eg1decay,  
                           pDimRgn->EG1InfiniteSustain,  
                           pDimRgn->EG1Sustain,  
                           pDimRgn->EG1Release + eg1release,  
                           Delay);  
         }  
95    
96            return ri;
97        }
98    
99      #if ENABLE_FILTER      Voice::InstrumentInfo Voice::GetInstrumentInfo() {
100          // setup EG 2 (VCF Cutoff EG)          InstrumentInfo ii;
101          {          ii.FineTune = GetGigEngineChannel()->pInstrument->FineTune;
102              // get current value of EG2 controller          ii.PitchbendRange = GetGigEngineChannel()->pInstrument->PitchbendRange;
             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 = pNoteOnEvent->Velocity;  
                     break;  
                 case ::gig::eg2_ctrl_t::type_controlchange: // MIDI control change controller  
                     eg2controllervalue = pEngine->ControllerTable[pDimRgn->EG2Controller.controller_number];  
                     break;  
             }  
             if (pDimRgn->EG2ControllerInvert) eg2controllervalue = 127 - eg2controllervalue;  
103    
104              // calculate influence of EG2 controller on EG2's parameters (TODO: needs to be fine tuned)          return ii;
105              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,  
                           pDimRgn->EG2Decay2 + eg2decay,  
                           pDimRgn->EG2InfiniteSustain,  
                           pDimRgn->EG2Sustain,  
                           pDimRgn->EG2Release + eg2release,  
                           Delay);  
         }  
     #endif // ENABLE_FILTER  
   
   
         // setup EG 3 (VCO EG)  
         {  
           double eg3depth = RTMath::CentsToFreqRatio(pDimRgn->EG3Depth);  
           pEG3->Trigger(eg3depth, pDimRgn->EG3Attack, Delay);  
         }  
106    
107        double Voice::GetSampleAttenuation() {
108            return pRegion->SampleAttenuation;
109        }
110    
111          // setup LFO 1 (VCA LFO)      double Voice::GetVelocityAttenuation(uint8_t MIDIKeyVelocity) {
112          {          return pRegion->GetVelocityAttenuation(MIDIKeyVelocity);
113              uint16_t lfo1_internal_depth;      }
             switch (pDimRgn->LFO1Controller) {  
                 case ::gig::lfo1_ctrl_internal:  
                     lfo1_internal_depth  = pDimRgn->LFO1InternalDepth;  
                     pLFO1->ExtController = 0; // no external controller  
                     break;  
                 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,  
                           pEngine->ControllerTable[pLFO1->ExtController],  
                           pDimRgn->LFO1FlipPhase,  
                           this->SampleRate,  
                           Delay);  
         }  
   
     #if ENABLE_FILTER  
         // setup LFO 2 (VCF Cutoff LFO)  
         {  
             uint16_t lfo2_internal_depth;  
             switch (pDimRgn->LFO2Controller) {  
                 case ::gig::lfo2_ctrl_internal:  
                     lfo2_internal_depth  = pDimRgn->LFO2InternalDepth;  
                     pLFO2->ExtController = 0; // no external controller  
                     break;  
                 case ::gig::lfo2_ctrl_modwheel:  
                     lfo2_internal_depth  = 0;  
                     pLFO2->ExtController = 1; // MIDI controller 1  
                     break;  
                 case ::gig::lfo2_ctrl_foot:  
                     lfo2_internal_depth  = 0;  
                     pLFO2->ExtController = 4; // MIDI controller 4  
                     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,  
                           pEngine->ControllerTable[pLFO2->ExtController],  
                           pDimRgn->LFO2FlipPhase,  
                           Delay);  
         }  
     #endif // ENABLE_FILTER  
   
         // setup LFO 3 (VCO LFO)  
         {  
             uint16_t lfo3_internal_depth;  
             switch (pDimRgn->LFO3Controller) {  
                 case ::gig::lfo3_ctrl_internal:  
                     lfo3_internal_depth  = pDimRgn->LFO3InternalDepth;  
                     pLFO3->ExtController = 0; // no external controller  
                     break;  
                 case ::gig::lfo3_ctrl_modwheel:  
                     lfo3_internal_depth  = 0;  
                     pLFO3->ExtController = 1; // MIDI controller 1  
                     break;  
                 case ::gig::lfo3_ctrl_aftertouch:  
                     lfo3_internal_depth  = 0;  
                     pLFO3->ExtController = 0; // TODO: aftertouch not implemented yet  
                     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,  
                           pEngine->ControllerTable[pLFO3->ExtController],  
                           false,  
                           this->SampleRate,  
                           Delay);  
         }  
   
     #if ENABLE_FILTER  
         #if FORCE_FILTER_USAGE  
         FilterLeft.Enabled = FilterRight.Enabled = true;  
         #else // use filter only if instrument file told so  
         FilterLeft.Enabled = FilterRight.Enabled = pDimRgn->VCFEnabled;  
         #endif // FORCE_FILTER_USAGE  
         if (pDimRgn->VCFEnabled) {  
             #ifdef OVERRIDE_FILTER_CUTOFF_CTRL  
             VCFCutoffCtrl.controller = OVERRIDE_FILTER_CUTOFF_CTRL;  
             #else // use the one defined in the instrument file  
             switch (pDimRgn->VCFCutoffController) {  
                 case ::gig::vcf_cutoff_ctrl_modwheel:  
                     VCFCutoffCtrl.controller = 1;  
                     break;  
                 case ::gig::vcf_cutoff_ctrl_effect1:  
                     VCFCutoffCtrl.controller = 12;  
                     break;  
                 case ::gig::vcf_cutoff_ctrl_effect2:  
                     VCFCutoffCtrl.controller = 13;  
                     break;  
                 case ::gig::vcf_cutoff_ctrl_breath:  
                     VCFCutoffCtrl.controller = 2;  
                     break;  
                 case ::gig::vcf_cutoff_ctrl_foot:  
                     VCFCutoffCtrl.controller = 4;  
                     break;  
                 case ::gig::vcf_cutoff_ctrl_sustainpedal:  
                     VCFCutoffCtrl.controller = 64;  
                     break;  
                 case ::gig::vcf_cutoff_ctrl_softpedal:  
                     VCFCutoffCtrl.controller = 67;  
                     break;  
                 case ::gig::vcf_cutoff_ctrl_genpurpose7:  
                     VCFCutoffCtrl.controller = 82;  
                     break;  
                 case ::gig::vcf_cutoff_ctrl_genpurpose8:  
                     VCFCutoffCtrl.controller = 83;  
                     break;  
                 case ::gig::vcf_cutoff_ctrl_aftertouch: //TODO: not implemented yet  
                 case ::gig::vcf_cutoff_ctrl_none:  
                 default:  
                     VCFCutoffCtrl.controller = 0;  
                     break;  
             }  
             #endif // OVERRIDE_FILTER_CUTOFF_CTRL  
114    
115              #ifdef OVERRIDE_FILTER_RES_CTRL      double Voice::GetVelocityRelease(uint8_t MIDIKeyVelocity) {
116              VCFResonanceCtrl.controller = OVERRIDE_FILTER_RES_CTRL;          return pRegion->GetVelocityRelease(MIDIKeyVelocity);
117              #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 // OVERRIDE_FILTER_RES_CTRL  
118    
119              #ifndef OVERRIDE_FILTER_TYPE      void Voice::ProcessCCEvent(RTList<Event>::Iterator& itEvent) {
120              FilterLeft.SetType(pDimRgn->VCFType);          if (itEvent->Type == Event::type_control_change && itEvent->Param.CC.Controller) { // if (valid) MIDI control change event
121              FilterRight.SetType(pDimRgn->VCFType);              if (pRegion->AttenuationController.type == ::gig::attenuation_ctrl_t::type_controlchange &&
122              #else // override filter type                  itEvent->Param.CC.Controller == pRegion->AttenuationController.controller_number) {
123              FilterLeft.SetType(OVERRIDE_FILTER_TYPE);                  CrossfadeSmoother.update(AbstractEngine::CrossfadeCurve[CrossfadeAttenuation(itEvent->Param.CC.Value)]);
             FilterRight.SetType(OVERRIDE_FILTER_TYPE);  
             #endif // OVERRIDE_FILTER_TYPE  
   
             VCFCutoffCtrl.value    = pEngine->ControllerTable[VCFCutoffCtrl.controller];  
             VCFResonanceCtrl.value = pEngine->ControllerTable[VCFResonanceCtrl.controller];  
   
             // calculate cutoff frequency  
             float cutoff = (!VCFCutoffCtrl.controller)  
                 ? exp((float) (127 - pNoteOnEvent->Velocity) * (float) pDimRgn->VCFVelocityScale * 6.2E-5f * FILTER_CUTOFF_COEFF) * FILTER_CUTOFF_MAX  
                 : exp((float) VCFCutoffCtrl.value * 0.00787402f * FILTER_CUTOFF_COEFF) * FILTER_CUTOFF_MAX;  
   
             // calculate resonance  
             float resonance = (float) VCFResonanceCtrl.value * 0.00787f;   // 0.0..1.0  
             if (pDimRgn->VCFKeyboardTracking) {  
                 resonance += (float) (pNoteOnEvent->Key - pDimRgn->VCFKeyboardTrackingBreakpoint) * 0.00787f;  
124              }              }
             Constrain(resonance, 0.0, 1.0); // correct resonance if outside allowed value range (0.0..1.0)  
   
             VCFCutoffCtrl.fvalue    = cutoff - FILTER_CUTOFF_MIN;  
             VCFResonanceCtrl.fvalue = resonance;  
   
             FilterLeft.SetParameters(cutoff,  resonance, SampleRate);  
             FilterRight.SetParameters(cutoff, resonance, SampleRate);  
   
             FilterUpdateCounter = -1;  
         }  
         else {  
             VCFCutoffCtrl.controller    = 0;  
             VCFResonanceCtrl.controller = 0;  
125          }          }
126      #endif // ENABLE_FILTER      }
127    
128          // ************************************************      void Voice::ProcessChannelPressureEvent(RTList<Event>::Iterator& itEvent) {
129          // TODO: ARTICULATION DATA HANDLING IS MISSING HERE          if (itEvent->Type == Event::type_channel_pressure) { // if (valid) MIDI channel pressure (aftertouch) event
130          // ************************************************              if (pRegion->AttenuationController.type == ::gig::attenuation_ctrl_t::type_channelaftertouch) {
131                    CrossfadeSmoother.update(AbstractEngine::CrossfadeCurve[CrossfadeAttenuation(itEvent->Param.ChannelPressure.Value)]);
         return 0; // success  
     }  
   
     /**  
      *  Renders the audio data for this voice for the current audio fragment.  
      *  The sample input data can either come from RAM (cached sample or sample  
      *  part) or directly from disk. The output signal will be rendered by  
      *  resampling / interpolation. If this voice is a disk streaming voice and  
      *  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) {  
   
         // Reset the synthesis parameter matrix  
         pEngine->ResetSynthesisParameters(Event::destination_vca, this->Volume);  
         pEngine->ResetSynthesisParameters(Event::destination_vco, this->PitchBase);  
     #if ENABLE_FILTER  
         pEngine->ResetSynthesisParameters(Event::destination_vcfc, VCFCutoffCtrl.fvalue);  
         pEngine->ResetSynthesisParameters(Event::destination_vcfr, VCFResonanceCtrl.fvalue);  
     #endif // ENABLE_FILTER  
   
   
         // 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, pEngine->pMIDIKeyInfo[MIDIKey].pEvents, pTriggerEvent, this->Pos, this->PitchBase * this->PitchBend);  
     #if ENABLE_FILTER  
         pEG2->Process(Samples, pEngine->pMIDIKeyInfo[MIDIKey].pEvents, pTriggerEvent, this->Pos, this->PitchBase * this->PitchBend);  
     #endif // ENABLE_FILTER  
         pEG3->Process(Samples);  
         pLFO1->Process(Samples);  
     #if ENABLE_FILTER  
         pLFO2->Process(Samples);  
     #endif // ENABLE_FILTER  
         pLFO3->Process(Samples);  
   
   
         switch (this->PlaybackState) {  
   
             case playback_state_ram: {  
                     if (RAMLoop) InterpolateAndLoop(Samples, (sample_t*) pSample->GetCache().pStart, Delay);  
                     else         Interpolate(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;  
                             Kill();  
                             return;  
                         }  
                         DiskStreamRef.pStream->IncrementReadPos(pSample->Channels * (RTMath::DoubleToInt(Pos) - MaxRAMPos));  
                         Pos -= RTMath::DoubleToInt(Pos);  
                     }  
   
                     // add silence sample at the end if we reached the end of the stream (for the interpolator)  
                     if (DiskStreamRef.State == Stream::state_end && DiskStreamRef.pStream->GetReadSpace() < (MaxSamplesPerCycle << MAX_PITCH) / pSample->Channels) {  
                         DiskStreamRef.pStream->WriteSilence((MaxSamplesPerCycle << MAX_PITCH) / pSample->Channels);  
                         this->PlaybackState = playback_state_end;  
                     }  
   
                     sample_t* ptr = DiskStreamRef.pStream->GetReadPtr(); // get the current read_ptr within the ringbuffer where we read the samples from  
                     Interpolate(Samples, ptr, Delay);  
                     DiskStreamRef.pStream->IncrementReadPos(RTMath::DoubleToInt(Pos) * pSample->Channels);  
                     Pos -= RTMath::DoubleToInt(Pos);  
                 }  
                 break;  
   
             case playback_state_end:  
                 Kill(); // free voice  
                 break;  
         }  
   
   
     #if ENABLE_FILTER  
         // Reset synthesis event lists (except VCO, as VCO events apply channel wide currently)  
         pEngine->pSynthesisEvents[Event::destination_vcfc]->clear();  
         pEngine->pSynthesisEvents[Event::destination_vcfr]->clear();  
     #endif // ENABLE_FILTER  
   
         // Reset delay  
         Delay = 0;  
   
         pTriggerEvent = NULL;  
   
         // If release stage finished, let the voice be killed  
         if (pEG1->GetStage() == EGADSR::stage_end) this->PlaybackState = playback_state_end;  
     }  
   
     /**  
      *  Resets voice variables. Should only be called if rendering process is  
      *  suspended / not running.  
      */  
     void Voice::Reset() {  
         pLFO1->Reset();  
         pLFO2->Reset();  
         pLFO3->Reset();  
         DiskStreamRef.pStream = NULL;  
         DiskStreamRef.hStream = 0;  
         DiskStreamRef.State   = Stream::state_unused;  
         DiskStreamRef.OrderID = 0;  
         Active = false;  
     }  
   
     /**  
      *  Process the control change event lists of the engine for the current  
      *  audio fragment. Event values will be applied to the synthesis parameter  
      *  matrix.  
      *  
      *  @param Samples - number of samples to be rendered in this audio fragment cycle  
      */  
     void Voice::ProcessEvents(uint Samples) {  
   
         // dispatch control change events  
         Event* pCCEvent = pEngine->pCCEvents->first();  
         if (Delay) { // skip events that happened before this voice was triggered  
             while (pCCEvent && pCCEvent->FragmentPos() <= Delay) pCCEvent = pEngine->pCCEvents->next();  
         }  
         while (pCCEvent) {  
             if (pCCEvent->Controller) { // if valid MIDI controller  
                 #if ENABLE_FILTER  
                 if (pCCEvent->Controller == VCFCutoffCtrl.controller) {  
                     pEngine->pSynthesisEvents[Event::destination_vcfc]->alloc_assign(*pCCEvent);  
                 }  
                 if (pCCEvent->Controller == VCFResonanceCtrl.controller) {  
                     pEngine->pSynthesisEvents[Event::destination_vcfr]->alloc_assign(*pCCEvent);  
                 }  
                 #endif // ENABLE_FILTER  
                 if (pCCEvent->Controller == pLFO1->ExtController) {  
                     pLFO1->SendEvent(pCCEvent);  
                 }  
                 #if ENABLE_FILTER  
                 if (pCCEvent->Controller == pLFO2->ExtController) {  
                     pLFO2->SendEvent(pCCEvent);  
                 }  
                 #endif // ENABLE_FILTER  
                 if (pCCEvent->Controller == pLFO3->ExtController) {  
                     pLFO3->SendEvent(pCCEvent);  
                 }  
132              }              }
   
             pCCEvent = pEngine->pCCEvents->next();  
133          }          }
134        }
135    
136        void Voice::ProcessPolyphonicKeyPressureEvent(RTList<Event>::Iterator& itEvent) {
137            // Not used so far
138        }
139    
140          // process pitch events      void Voice::ProcessCutoffEvent(RTList<Event>::Iterator& itEvent) {
141          {          int ccvalue = itEvent->Param.CC.Value;
142              RTEList<Event>* pVCOEventList = pEngine->pSynthesisEvents[Event::destination_vco];          if (VCFCutoffCtrl.value == ccvalue) return;
143              Event* pVCOEvent = pVCOEventList->first();          VCFCutoffCtrl.value = ccvalue;
144              if (Delay) { // skip events that happened before this voice was triggered          if (pRegion->VCFCutoffControllerInvert)  ccvalue = 127 - ccvalue;
145                  while (pVCOEvent && pVCOEvent->FragmentPos() <= Delay) pVCOEvent = pVCOEventList->next();          if (ccvalue < pRegion->VCFVelocityScale) ccvalue = pRegion->VCFVelocityScale;
146              }          float cutoff = CutoffBase * float(ccvalue);
147              // apply old pitchbend value until first pitch event occurs          if (cutoff > 127.0f) cutoff = 127.0f;
             if (this->PitchBend != 1.0) {  
                 uint end = (pVCOEvent) ? pVCOEvent->FragmentPos() : Samples;  
                 for (uint i = Delay; i < end; i++) {  
                     pEngine->pSynthesisParameters[Event::destination_vco][i] *= this->PitchBend;  
                 }  
             }  
             float pitch;  
             while (pVCOEvent) {  
                 Event* pNextVCOEvent = pVCOEventList->next();  
   
                 // calculate the influence length of this event (in sample points)  
                 uint end = (pNextVCOEvent) ? pNextVCOEvent->FragmentPos() : Samples;  
   
                 pitch = RTMath::CentsToFreqRatio(((double) pVCOEvent->Pitch / 8192.0) * 200.0); // +-two semitones = +-200 cents  
148    
149                  // apply pitch value to the pitch parameter sequence          VCFCutoffCtrl.fvalue = cutoff; // needed for initialization of fFinalCutoff next time
150                  for (uint i = pVCOEvent->FragmentPos(); i < end; i++) {          fFinalCutoff = cutoff;
151                      pEngine->pSynthesisParameters[Event::destination_vco][i] *= pitch;      }
                 }  
152    
153                  pVCOEvent = pNextVCOEvent;      double Voice::CalculateCrossfadeVolume(uint8_t MIDIKeyVelocity) {
154              }          float crossfadeVolume;
155              if (pVCOEventList->last()) this->PitchBend = pitch;          switch (pRegion->AttenuationController.type) {
156                case ::gig::attenuation_ctrl_t::type_channelaftertouch:
157                    crossfadeVolume = Engine::CrossfadeCurve[CrossfadeAttenuation(GetGigEngineChannel()->ControllerTable[128])];
158                    break;
159                case ::gig::attenuation_ctrl_t::type_velocity:
160                    crossfadeVolume = Engine::CrossfadeCurve[CrossfadeAttenuation(MIDIKeyVelocity)];
161                    break;
162                case ::gig::attenuation_ctrl_t::type_controlchange: //FIXME: currently not sample accurate
163                    crossfadeVolume = Engine::CrossfadeCurve[CrossfadeAttenuation(GetGigEngineChannel()->ControllerTable[pRegion->AttenuationController.controller_number])];
164                    break;
165                case ::gig::attenuation_ctrl_t::type_none: // no crossfade defined
166                default:
167                    crossfadeVolume = 1.0f;
168          }          }
169    
170            return crossfadeVolume;
171        }
172    
173      #if ENABLE_FILTER      double Voice::GetEG1ControllerValue(uint8_t MIDIKeyVelocity) {
174          // process filter cutoff events          double eg1controllervalue = 0;
175          {          switch (pRegion->EG1Controller.type) {
176              RTEList<Event>* pCutoffEventList = pEngine->pSynthesisEvents[Event::destination_vcfc];              case ::gig::eg1_ctrl_t::type_none: // no controller defined
177              Event* pCutoffEvent = pCutoffEventList->first();                  eg1controllervalue = 0;
178              if (Delay) { // skip events that happened before this voice was triggered                  break;
179                  while (pCutoffEvent && pCutoffEvent->FragmentPos() <= Delay) pCutoffEvent = pCutoffEventList->next();              case ::gig::eg1_ctrl_t::type_channelaftertouch:
180              }                  eg1controllervalue = GetGigEngineChannel()->ControllerTable[128];
181              float cutoff;                  break;
182              while (pCutoffEvent) {              case ::gig::eg1_ctrl_t::type_velocity:
183                  Event* pNextCutoffEvent = pCutoffEventList->next();                  eg1controllervalue = MIDIKeyVelocity;
184                    break;
185                  // calculate the influence length of this event (in sample points)              case ::gig::eg1_ctrl_t::type_controlchange: // MIDI control change controller
186                  uint end = (pNextCutoffEvent) ? pNextCutoffEvent->FragmentPos() : Samples;                  eg1controllervalue = GetGigEngineChannel()->ControllerTable[pRegion->EG1Controller.controller_number];
187                    break;
188                  cutoff = exp((float) pCutoffEvent->Value * 0.00787402f * FILTER_CUTOFF_COEFF) * FILTER_CUTOFF_MAX - FILTER_CUTOFF_MIN;          }
189            if (pRegion->EG1ControllerInvert) eg1controllervalue = 127 - eg1controllervalue;
190    
191                  // apply cutoff frequency to the cutoff parameter sequence          return eg1controllervalue;
192                  for (uint i = pCutoffEvent->FragmentPos(); i < end; i++) {      }
                     pEngine->pSynthesisParameters[Event::destination_vcfc][i] = cutoff;  
                 }  
193    
194                  pCutoffEvent = pNextCutoffEvent;      Voice::EGInfo Voice::CalculateEG1ControllerInfluence(double eg1ControllerValue) {
195              }          EGInfo eg;
196              if (pCutoffEventList->last()) VCFCutoffCtrl.fvalue = cutoff; // needed for initialization of parameter matrix next time          // (eg1attack is different from the others)
197            if (pRegion->EG1Attack < 1e-8 && // attack in gig == 0
198                (pRegion->EG1ControllerAttackInfluence == 0 ||
199                 eg1ControllerValue <= 10)) { // strange GSt special case
200                eg.Attack = 0; // this will force the attack to be 0 in the call to EG1.trigger
201            } else {
202                eg.Attack  = (pRegion->EG1ControllerAttackInfluence)  ?
203                    1 + 0.031 * (double) (pRegion->EG1ControllerAttackInfluence == 1 ?
204                                          1 : 1 << pRegion->EG1ControllerAttackInfluence) * eg1ControllerValue : 1.0;
205            }
206            eg.Decay   = (pRegion->EG1ControllerDecayInfluence)   ? 1 + 0.00775 * (double) (1 << pRegion->EG1ControllerDecayInfluence)   * eg1ControllerValue : 1.0;
207            eg.Release = (pRegion->EG1ControllerReleaseInfluence) ? 1 + 0.00775 * (double) (1 << pRegion->EG1ControllerReleaseInfluence) * eg1ControllerValue : 1.0;
208    
209            return eg;
210        }
211    
212        double Voice::GetEG2ControllerValue(uint8_t MIDIKeyVelocity) {
213            double eg2controllervalue = 0;
214            switch (pRegion->EG2Controller.type) {
215                case ::gig::eg2_ctrl_t::type_none: // no controller defined
216                    eg2controllervalue = 0;
217                    break;
218                case ::gig::eg2_ctrl_t::type_channelaftertouch:
219                    eg2controllervalue = GetGigEngineChannel()->ControllerTable[128];
220                    break;
221                case ::gig::eg2_ctrl_t::type_velocity:
222                    eg2controllervalue = MIDIKeyVelocity;
223                    break;
224                case ::gig::eg2_ctrl_t::type_controlchange: // MIDI control change controller
225                    eg2controllervalue = GetGigEngineChannel()->ControllerTable[pRegion->EG2Controller.controller_number];
226                    break;
227          }          }
228            if (pRegion->EG2ControllerInvert) eg2controllervalue = 127 - eg2controllervalue;
229    
230          // process filter resonance events          return eg2controllervalue;
231          {      }
             RTEList<Event>* pResonanceEventList = pEngine->pSynthesisEvents[Event::destination_vcfr];  
             Event* pResonanceEvent = pResonanceEventList->first();  
             if (Delay) { // skip events that happened before this voice was triggered  
                 while (pResonanceEvent && pResonanceEvent->FragmentPos() <= Delay) pResonanceEvent = pResonanceEventList->next();  
             }  
             while (pResonanceEvent) {  
                 Event* pNextResonanceEvent = pResonanceEventList->next();  
232    
233                  // calculate the influence length of this event (in sample points)      Voice::EGInfo Voice::CalculateEG2ControllerInfluence(double eg2ControllerValue) {
234                  uint end = (pNextResonanceEvent) ? pNextResonanceEvent->FragmentPos() : Samples;          EGInfo eg;
235            eg.Attack  = (pRegion->EG2ControllerAttackInfluence)  ? 1 + 0.00775 * (double) (1 << pRegion->EG2ControllerAttackInfluence)  * eg2ControllerValue : 1.0;
236            eg.Decay   = (pRegion->EG2ControllerDecayInfluence)   ? 1 + 0.00775 * (double) (1 << pRegion->EG2ControllerDecayInfluence)   * eg2ControllerValue : 1.0;
237            eg.Release = (pRegion->EG2ControllerReleaseInfluence) ? 1 + 0.00775 * (double) (1 << pRegion->EG2ControllerReleaseInfluence) * eg2ControllerValue : 1.0;
238    
239                  // convert absolute controller value to differential          return eg;
240                  int ctrldelta = pResonanceEvent->Value - VCFResonanceCtrl.value;      }
                 VCFResonanceCtrl.value = pResonanceEvent->Value;  
241    
242                  float resonancedelta = (float) ctrldelta * 0.00787f; // 0.0..1.0      void Voice::InitLFO1() {
243            uint16_t lfo1_internal_depth;
244            switch (pRegion->LFO1Controller) {
245                case ::gig::lfo1_ctrl_internal:
246                    lfo1_internal_depth  = pRegion->LFO1InternalDepth;
247                    pLFO1->ExtController = 0; // no external controller
248                    bLFO1Enabled         = (lfo1_internal_depth > 0);
249                    break;
250                case ::gig::lfo1_ctrl_modwheel:
251                    lfo1_internal_depth  = 0;
252                    pLFO1->ExtController = 1; // MIDI controller 1
253                    bLFO1Enabled         = (pRegion->LFO1ControlDepth > 0);
254                    break;
255                case ::gig::lfo1_ctrl_breath:
256                    lfo1_internal_depth  = 0;
257                    pLFO1->ExtController = 2; // MIDI controller 2
258                    bLFO1Enabled         = (pRegion->LFO1ControlDepth > 0);
259                    break;
260                case ::gig::lfo1_ctrl_internal_modwheel:
261                    lfo1_internal_depth  = pRegion->LFO1InternalDepth;
262                    pLFO1->ExtController = 1; // MIDI controller 1
263                    bLFO1Enabled         = (lfo1_internal_depth > 0 || pRegion->LFO1ControlDepth > 0);
264                    break;
265                case ::gig::lfo1_ctrl_internal_breath:
266                    lfo1_internal_depth  = pRegion->LFO1InternalDepth;
267                    pLFO1->ExtController = 2; // MIDI controller 2
268                    bLFO1Enabled         = (lfo1_internal_depth > 0 || pRegion->LFO1ControlDepth > 0);
269                    break;
270                default:
271                    lfo1_internal_depth  = 0;
272                    pLFO1->ExtController = 0; // no external controller
273                    bLFO1Enabled         = false;
274            }
275            if (bLFO1Enabled) {
276                pLFO1->trigger(pRegion->LFO1Frequency,
277                               start_level_min,
278                               lfo1_internal_depth,
279                               pRegion->LFO1ControlDepth,
280                               pRegion->LFO1FlipPhase,
281                               pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
282                pLFO1->updateByMIDICtrlValue(pLFO1->ExtController ? GetGigEngineChannel()->ControllerTable[pLFO1->ExtController] : 0);
283                pLFO1->setScriptDepthFactor(pNote->Override.AmpLFODepth);
284                pLFO1->setScriptFrequencyFactor(pNote->Override.AmpLFOFreq, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
285            }
286        }
287    
288                  // apply cutoff frequency to the cutoff parameter sequence      void Voice::InitLFO2() {
289                  for (uint i = pResonanceEvent->FragmentPos(); i < end; i++) {          uint16_t lfo2_internal_depth;
290                      pEngine->pSynthesisParameters[Event::destination_vcfr][i] += resonancedelta;          switch (pRegion->LFO2Controller) {
291                  }              case ::gig::lfo2_ctrl_internal:
292                    lfo2_internal_depth  = pRegion->LFO2InternalDepth;
293                    pLFO2->ExtController = 0; // no external controller
294                    bLFO2Enabled         = (lfo2_internal_depth > 0);
295                    break;
296                case ::gig::lfo2_ctrl_modwheel:
297                    lfo2_internal_depth  = 0;
298                    pLFO2->ExtController = 1; // MIDI controller 1
299                    bLFO2Enabled         = (pRegion->LFO2ControlDepth > 0);
300                    break;
301                case ::gig::lfo2_ctrl_foot:
302                    lfo2_internal_depth  = 0;
303                    pLFO2->ExtController = 4; // MIDI controller 4
304                    bLFO2Enabled         = (pRegion->LFO2ControlDepth > 0);
305                    break;
306                case ::gig::lfo2_ctrl_internal_modwheel:
307                    lfo2_internal_depth  = pRegion->LFO2InternalDepth;
308                    pLFO2->ExtController = 1; // MIDI controller 1
309                    bLFO2Enabled         = (lfo2_internal_depth > 0 || pRegion->LFO2ControlDepth > 0);
310                    break;
311                case ::gig::lfo2_ctrl_internal_foot:
312                    lfo2_internal_depth  = pRegion->LFO2InternalDepth;
313                    pLFO2->ExtController = 4; // MIDI controller 4
314                    bLFO2Enabled         = (lfo2_internal_depth > 0 || pRegion->LFO2ControlDepth > 0);
315                    break;
316                default:
317                    lfo2_internal_depth  = 0;
318                    pLFO2->ExtController = 0; // no external controller
319                    bLFO2Enabled         = false;
320            }
321            if (bLFO2Enabled) {
322                pLFO2->trigger(pRegion->LFO2Frequency,
323                               start_level_max,
324                               lfo2_internal_depth,
325                               pRegion->LFO2ControlDepth,
326                               pRegion->LFO2FlipPhase,
327                               pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
328                pLFO2->updateByMIDICtrlValue(pLFO2->ExtController ? GetGigEngineChannel()->ControllerTable[pLFO2->ExtController] : 0);
329                pLFO2->setScriptDepthFactor(pNote->Override.CutoffLFODepth);
330                pLFO2->setScriptFrequencyFactor(pNote->Override.CutoffLFOFreq, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
331            }
332        }
333    
334                  pResonanceEvent = pNextResonanceEvent;      void Voice::InitLFO3() {
335              }          uint16_t lfo3_internal_depth;
336              if (pResonanceEventList->last()) VCFResonanceCtrl.fvalue = pResonanceEventList->last()->Value * 0.00787f; // needed for initialization of parameter matrix next time          switch (pRegion->LFO3Controller) {
337                case ::gig::lfo3_ctrl_internal:
338                    lfo3_internal_depth  = pRegion->LFO3InternalDepth;
339                    pLFO3->ExtController = 0; // no external controller
340                    bLFO3Enabled         = (lfo3_internal_depth > 0);
341                    break;
342                case ::gig::lfo3_ctrl_modwheel:
343                    lfo3_internal_depth  = 0;
344                    pLFO3->ExtController = 1; // MIDI controller 1
345                    bLFO3Enabled         = (pRegion->LFO3ControlDepth > 0);
346                    break;
347                case ::gig::lfo3_ctrl_aftertouch:
348                    lfo3_internal_depth  = 0;
349                    pLFO3->ExtController = CTRL_TABLE_IDX_AFTERTOUCH;
350                    bLFO3Enabled         = true;
351                    break;
352                case ::gig::lfo3_ctrl_internal_modwheel:
353                    lfo3_internal_depth  = pRegion->LFO3InternalDepth;
354                    pLFO3->ExtController = 1; // MIDI controller 1
355                    bLFO3Enabled         = (lfo3_internal_depth > 0 || pRegion->LFO3ControlDepth > 0);
356                    break;
357                case ::gig::lfo3_ctrl_internal_aftertouch:
358                    lfo3_internal_depth  = pRegion->LFO3InternalDepth;
359                    pLFO3->ExtController = CTRL_TABLE_IDX_AFTERTOUCH;
360                    bLFO3Enabled         = (lfo3_internal_depth > 0 || pRegion->LFO3ControlDepth > 0);
361                    break;
362                default:
363                    lfo3_internal_depth  = 0;
364                    pLFO3->ExtController = 0; // no external controller
365                    bLFO3Enabled         = false;
366            }
367            if (bLFO3Enabled) {
368                pLFO3->trigger(pRegion->LFO3Frequency,
369                               start_level_mid,
370                               lfo3_internal_depth,
371                               pRegion->LFO3ControlDepth,
372                               false,
373                               pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
374                pLFO3->updateByMIDICtrlValue(pLFO3->ExtController ? GetGigEngineChannel()->ControllerTable[pLFO3->ExtController] : 0);
375                pLFO3->setScriptDepthFactor(pNote->Override.PitchLFODepth);
376                pLFO3->setScriptFrequencyFactor(pNote->Override.PitchLFOFreq, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
377          }          }
     #endif // ENABLE_FILTER  
378      }      }
379    
380      /**      float Voice::CalculateCutoffBase(uint8_t MIDIKeyVelocity) {
381       *  Interpolates the input audio data (no loop).          float cutoff = pRegion->GetVelocityCutoff(MIDIKeyVelocity);
382       *          if (pRegion->VCFKeyboardTracking) {
383       *  @param Samples - number of sample points to be rendered in this audio              cutoff *= RTMath::CentsToFreqRatioUnlimited((MIDIKey() - pRegion->VCFKeyboardTrackingBreakpoint) * 100);
384       *                   fragment cycle          }
385       *  @param pSrc    - pointer to input sample data          return cutoff;
386       *  @param Skip    - number of sample points to skip in output buffer      }
387       */  
388      void Voice::Interpolate(uint Samples, sample_t* pSrc, uint Skip) {      float Voice::CalculateFinalCutoff(float cutoffBase) {
389          int i = Skip;          int cvalue;
390            if (VCFCutoffCtrl.controller) {
391          // FIXME: assuming either mono or stereo              cvalue = GetGigEngineChannel()->ControllerTable[VCFCutoffCtrl.controller];
392          if (this->pSample->Channels == 2) { // Stereo Sample              if (pRegion->VCFCutoffControllerInvert) cvalue = 127 - cvalue;
393              while (i < Samples) {              // VCFVelocityScale in this case means Minimum cutoff
394                  InterpolateOneStep_Stereo(pSrc, i,              if (cvalue < pRegion->VCFVelocityScale) cvalue = pRegion->VCFVelocityScale;
                                           pEngine->pSynthesisParameters[Event::destination_vca][i],  
                                           pEngine->pSynthesisParameters[Event::destination_vco][i],  
                                           pEngine->pSynthesisParameters[Event::destination_vcfc][i],  
                                           pEngine->pSynthesisParameters[Event::destination_vcfr][i]);  
             }  
395          }          }
396          else { // Mono Sample          else {
397              while (i < Samples) {              cvalue = pRegion->VCFCutoff;
                 InterpolateOneStep_Mono(pSrc, i,  
                                         pEngine->pSynthesisParameters[Event::destination_vca][i],  
                                         pEngine->pSynthesisParameters[Event::destination_vco][i],  
                                         pEngine->pSynthesisParameters[Event::destination_vcfc][i],  
                                         pEngine->pSynthesisParameters[Event::destination_vcfr][i]);  
             }  
398          }          }
399            float fco = cutoffBase * float(cvalue);
400            if (fco > 127.0f) fco = 127.0f;
401    
402            return fco;
403      }      }
404    
405      /**      uint8_t Voice::GetVCFCutoffCtrl() {
406       *  Interpolates the input audio data, this method honors looping.          uint8_t ctrl;
407       *          switch (pRegion->VCFCutoffController) {
408       *  @param Samples - number of sample points to be rendered in this audio              case ::gig::vcf_cutoff_ctrl_modwheel:
409       *                   fragment cycle                  ctrl = 1;
410       *  @param pSrc    - pointer to input sample data                  break;
411       *  @param Skip    - number of sample points to skip in output buffer              case ::gig::vcf_cutoff_ctrl_effect1:
412       */                  ctrl = 12;
413      void Voice::InterpolateAndLoop(uint Samples, sample_t* pSrc, uint Skip) {                  break;
414          int i = Skip;              case ::gig::vcf_cutoff_ctrl_effect2:
415                    ctrl = 13;
416          // FIXME: assuming either mono or stereo                  break;
417          if (pSample->Channels == 2) { // Stereo Sample              case ::gig::vcf_cutoff_ctrl_breath:
418              if (pSample->LoopPlayCount) {                  ctrl = 2;
419                  // render loop (loop count limited)                  break;
420                  while (i < Samples && LoopCyclesLeft) {              case ::gig::vcf_cutoff_ctrl_foot:
421                      InterpolateOneStep_Stereo(pSrc, i,                  ctrl = 4;
422                                                pEngine->pSynthesisParameters[Event::destination_vca][i],                  break;
423                                                pEngine->pSynthesisParameters[Event::destination_vco][i],              case ::gig::vcf_cutoff_ctrl_sustainpedal:
424                                                pEngine->pSynthesisParameters[Event::destination_vcfc][i],                  ctrl = 64;
425                                                pEngine->pSynthesisParameters[Event::destination_vcfr][i]);                  break;
426                      if (Pos > pSample->LoopEnd) {              case ::gig::vcf_cutoff_ctrl_softpedal:
427                          Pos = pSample->LoopStart + fmod(Pos - pSample->LoopEnd, pSample->LoopSize);;                  ctrl = 67;
428                          LoopCyclesLeft--;                  break;
429                      }              case ::gig::vcf_cutoff_ctrl_genpurpose7:
430                  }                  ctrl = 82;
431                  // render on without loop                  break;
432                  while (i < Samples) {              case ::gig::vcf_cutoff_ctrl_genpurpose8:
433                      InterpolateOneStep_Stereo(pSrc, i,                  ctrl = 83;
434                                                pEngine->pSynthesisParameters[Event::destination_vca][i],                  break;
435                                                pEngine->pSynthesisParameters[Event::destination_vco][i],              case ::gig::vcf_cutoff_ctrl_aftertouch:
436                                                pEngine->pSynthesisParameters[Event::destination_vcfc][i],                  ctrl = CTRL_TABLE_IDX_AFTERTOUCH;
437                                                pEngine->pSynthesisParameters[Event::destination_vcfr][i]);                  break;
438                  }              case ::gig::vcf_cutoff_ctrl_none:
439              }              default:
440              else { // render loop (endless loop)                  ctrl = 0;
441                  while (i < Samples) {                  break;
                     InterpolateOneStep_Stereo(pSrc, i,  
                                               pEngine->pSynthesisParameters[Event::destination_vca][i],  
                                               pEngine->pSynthesisParameters[Event::destination_vco][i],  
                                               pEngine->pSynthesisParameters[Event::destination_vcfc][i],  
                                               pEngine->pSynthesisParameters[Event::destination_vcfr][i]);  
                     if (Pos > pSample->LoopEnd) {  
                         Pos = pSample->LoopStart + fmod(Pos - pSample->LoopEnd, pSample->LoopSize);  
                     }  
                 }  
             }  
         }  
         else { // Mono Sample  
             if (pSample->LoopPlayCount) {  
                 // render loop (loop count limited)  
                 while (i < Samples && LoopCyclesLeft) {  
                     InterpolateOneStep_Mono(pSrc, i,  
                                             pEngine->pSynthesisParameters[Event::destination_vca][i],  
                                             pEngine->pSynthesisParameters[Event::destination_vco][i],  
                                             pEngine->pSynthesisParameters[Event::destination_vcfc][i],  
                                             pEngine->pSynthesisParameters[Event::destination_vcfr][i]);  
                     if (Pos > pSample->LoopEnd) {  
                         Pos = pSample->LoopStart + fmod(Pos - pSample->LoopEnd, pSample->LoopSize);;  
                         LoopCyclesLeft--;  
                     }  
                 }  
                 // render on without loop  
                 while (i < Samples) {  
                     InterpolateOneStep_Mono(pSrc, i,  
                                             pEngine->pSynthesisParameters[Event::destination_vca][i],  
                                             pEngine->pSynthesisParameters[Event::destination_vco][i],  
                                             pEngine->pSynthesisParameters[Event::destination_vcfc][i],  
                                             pEngine->pSynthesisParameters[Event::destination_vcfr][i]);  
                 }  
             }  
             else { // render loop (endless loop)  
                 while (i < Samples) {  
                     InterpolateOneStep_Mono(pSrc, i,  
                                             pEngine->pSynthesisParameters[Event::destination_vca][i],  
                                             pEngine->pSynthesisParameters[Event::destination_vco][i],  
                                             pEngine->pSynthesisParameters[Event::destination_vcfc][i],  
                                             pEngine->pSynthesisParameters[Event::destination_vcfr][i]);  
                     if (Pos > pSample->LoopEnd) {  
                         Pos = pSample->LoopStart + fmod(Pos - pSample->LoopEnd, pSample->LoopSize);;  
                     }  
                 }  
             }  
442          }          }
443    
444            return ctrl;
445      }      }
446    
447      /**      uint8_t Voice::GetVCFResonanceCtrl() {
448       *  Immediately kill the voice.          uint8_t ctrl;
449       */          switch (pRegion->VCFResonanceController) {
450      void Voice::Kill() {              case ::gig::vcf_res_ctrl_genpurpose3:
451          if (DiskVoice && DiskStreamRef.State != Stream::state_unused) {                  ctrl = 18;
452              pDiskThread->OrderDeletionOfStream(&DiskStreamRef);                  break;
453                case ::gig::vcf_res_ctrl_genpurpose4:
454                    ctrl = 19;
455                    break;
456                case ::gig::vcf_res_ctrl_genpurpose5:
457                    ctrl = 80;
458                    break;
459                case ::gig::vcf_res_ctrl_genpurpose6:
460                    ctrl = 81;
461                    break;
462                case ::gig::vcf_res_ctrl_none:
463                default:
464                    ctrl = 0;
465            }
466    
467            return ctrl;
468        }
469    
470        void Voice::TriggerEG1(const EGInfo& egInfo, double velrelease, double velocityAttenuation, uint sampleRate, uint8_t velocity) {
471            EG1.setStateOptions(
472                pRegion->EG1Options.AttackCancel,
473                pRegion->EG1Options.AttackHoldCancel,
474                pRegion->EG1Options.Decay1Cancel,
475                pRegion->EG1Options.Decay2Cancel,
476                pRegion->EG1Options.ReleaseCancel
477            );
478            EG1.trigger(pRegion->EG1PreAttack,
479                        RTMath::Max(pRegion->EG1Attack, 0.0316) * egInfo.Attack,
480                        pRegion->EG1Hold,
481                        pRegion->EG1Decay1 * egInfo.Decay * velrelease,
482                        pRegion->EG1Decay2 * egInfo.Decay * velrelease,
483                        pRegion->EG1InfiniteSustain,
484                        pRegion->EG1Sustain * (pNote ? pNote->Override.Sustain : 1.f),
485                        RTMath::Max(pRegion->EG1Release * velrelease, 0.014) * egInfo.Release,
486                        velocityAttenuation,
487                        sampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
488        }
489    
490        void Voice::TriggerEG2(const EGInfo& egInfo, double velrelease, double velocityAttenuation, uint sampleRate, uint8_t velocity) {
491            EG2.setStateOptions(
492                pRegion->EG2Options.AttackCancel,
493                pRegion->EG2Options.AttackHoldCancel,
494                pRegion->EG2Options.Decay1Cancel,
495                pRegion->EG2Options.Decay2Cancel,
496                pRegion->EG2Options.ReleaseCancel
497            );
498            EG2.trigger(uint(RgnInfo.EG2PreAttack),
499                        RgnInfo.EG2Attack * egInfo.Attack,
500                        false,
501                        RgnInfo.EG2Decay1 * egInfo.Decay * velrelease,
502                        RgnInfo.EG2Decay2 * egInfo.Decay * velrelease,
503                        RgnInfo.EG2InfiniteSustain,
504                        uint(RgnInfo.EG2Sustain),
505                        RgnInfo.EG2Release * egInfo.Release * velrelease,
506                        velocityAttenuation,
507                        sampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
508        }
509    
510        void Voice::ProcessGroupEvent(RTList<Event>::Iterator& itEvent) {
511            dmsg(4,("Voice %p processGroupEvents event type=%d", (void*)this, itEvent->Type));
512    
513            // TODO: The SustainPedal condition could be wrong, maybe the
514            // check should be if this Voice is in release stage or is a
515            // release sample instead. Need to test this in GSt.
516            // -- Andreas
517            //
518            // Commented sustain pedal check out. I don't think voices of the same
519            // note should be stopped at all, because it doesn't sound naturally
520            // with a drumkit.
521            // -- Christian, 2013-01-08
522            if (itEvent->Param.Note.Key != HostKey() /*||
523                !GetGigEngineChannel()->SustainPedal*/) {
524                dmsg(4,("Voice %p - kill", (void*)this));
525    
526                // kill the voice fast
527                pEG1->enterFadeOutStage();
528            }
529        }
530    
531        void Voice::CalculateFadeOutCoeff(float FadeOutTime, float SampleRate) {
532            EG1.CalculateFadeOutCoeff(FadeOutTime, SampleRate);
533        }
534    
535        int Voice::CalculatePan(uint8_t pan) {
536            int p;
537            // Gst behaviour: -64 and 63 are special cases
538            if (RgnInfo.Pan == -64)     p = pan * 2 - 127;
539            else if (RgnInfo.Pan == 63) p = pan * 2;
540            else                        p = pan + RgnInfo.Pan;
541    
542            if (p < 0) return 0;
543            if (p > 127) return 127;
544            return p;
545        }
546    
547        release_trigger_t Voice::GetReleaseTriggerFlags() {
548            release_trigger_t flags = 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
549            switch (pRegion->SustainReleaseTrigger) {
550                case ::gig::sust_rel_trg_none:
551                    break;
552                case ::gig::sust_rel_trg_maxvelocity:
553                    flags |= release_trigger_sustain_maxvelocity;
554                    break;
555                case ::gig::sust_rel_trg_keyvelocity:
556                    flags |= release_trigger_sustain_keyvelocity;
557                    break;
558          }          }
559          Reset();          return flags;
560      }      }
561    
562  }} // namespace LinuxSampler::gig  }} // namespace LinuxSampler::gig
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