/[svn]/linuxsampler/trunk/src/engines/gig/Voice.cpp
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revision 330 by schoenebeck, Wed Dec 29 01:14:15 2004 UTC revision 2175 by persson, Mon Apr 25 08:12:36 2011 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 - 2011 Christian Schoenebeck and Grigor Iliev      *
8   *                                                                         *   *                                                                         *
9   *   This program is free software; you can redistribute it and/or modify  *   *   This program is free software; you can redistribute it and/or modify  *
10   *   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 22 
22   *   MA  02111-1307  USA                                                   *   *   MA  02111-1307  USA                                                   *
23   ***************************************************************************/   ***************************************************************************/
24    
 #include "EGADSR.h"  
 #include "Manipulator.h"  
25  #include "../../common/Features.h"  #include "../../common/Features.h"
26  #include "Synthesizer.h"  #include "Synthesizer.h"
27    #include "Profiler.h"
28    #include "Engine.h"
29    #include "EngineChannel.h"
30    
31  #include "Voice.h"  #include "Voice.h"
32    
33  namespace LinuxSampler { namespace gig {  namespace LinuxSampler { namespace gig {
34    
35      const float Voice::FILTER_CUTOFF_COEFF(CalculateFilterCutoffCoeff());      Voice::Voice() {
36            pEngine = NULL;
37      const int Voice::FILTER_UPDATE_MASK(CalculateFilterUpdateMask());          pEG1 = &EG1;
38            pEG2 = &EG2;
     float Voice::CalculateFilterCutoffCoeff() {  
         return log(FILTER_CUTOFF_MIN / FILTER_CUTOFF_MAX);  
39      }      }
40    
41      int Voice::CalculateFilterUpdateMask() {      Voice::~Voice() {
         if (FILTER_UPDATE_PERIOD <= 0) return 0;  
         int power_of_two;  
         for (power_of_two = 0; 1<<power_of_two < FILTER_UPDATE_PERIOD; power_of_two++);  
         return (1 << power_of_two) - 1;  
42      }      }
43    
44      Voice::Voice() {      EngineChannel* Voice::GetGigEngineChannel() {
45          pEngine     = NULL;          return static_cast<EngineChannel*>(pEngineChannel);
         pDiskThread = NULL;  
         PlaybackState = playback_state_end;  
         pEG1   = NULL;  
         pEG2   = NULL;  
         pEG3   = NULL;  
         pVCAManipulator  = NULL;  
         pVCFCManipulator = NULL;  
         pVCOManipulator  = NULL;  
         pLFO1  = NULL;  
         pLFO2  = NULL;  
         pLFO3  = NULL;  
         KeyGroup = 0;  
   
         // select synthesis implementation (currently either pure C++ or MMX+SSE(1))  
         SYNTHESIS_MODE_SET_IMPLEMENTATION(SynthesisMode, Features::supportsMMX() && Features::supportsSSE());  
         SYNTHESIS_MODE_SET_PROFILING(SynthesisMode, true);  
46      }      }
47    
48      Voice::~Voice() {      void Voice::SetEngine(LinuxSampler::Engine* pEngine) {
49          if (pEG1)  delete pEG1;          Engine* engine = static_cast<Engine*>(pEngine);
50          if (pEG2)  delete pEG2;          this->pEngine     = engine;
51          if (pEG3)  delete pEG3;          this->pDiskThread = engine->pDiskThread;
         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;  
52          dmsg(6,("Voice::SetEngine()\n"));          dmsg(6,("Voice::SetEngine()\n"));
53      }      }
54    
55      /**      Voice::SampleInfo Voice::GetSampleInfo() {
56       *  Initializes and triggers the voice, a disk stream will be launched if          SampleInfo si;
57       *  needed.          si.SampleRate       = pSample->SamplesPerSecond;
58       *          si.ChannelCount     = pSample->Channels;
59       *  @param itNoteOnEvent       - event that caused triggering of this voice          si.FrameSize        = pSample->FrameSize;
60       *  @param PitchBend           - MIDI detune factor (-8192 ... +8191)          si.BitDepth         = pSample->BitDepth;
61       *  @param pInstrument         - points to the loaded instrument which provides sample wave(s) and articulation data          si.TotalFrameCount  = pSample->SamplesTotal;
      *  @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 VoiceStealing       - wether the voice is allowed to steal voices for further subvoices  
      *  @returns 0 on success, a value < 0 if something failed  
      */  
     int Voice::Trigger(Pool<Event>::Iterator& itNoteOnEvent, int PitchBend, ::gig::Instrument* pInstrument, int iLayer, bool ReleaseTriggerVoice, bool VoiceStealing) {  
         if (!pInstrument) {  
            dmsg(1,("voice::trigger: !pInstrument\n"));  
            exit(EXIT_FAILURE);  
         }  
         if (itNoteOnEvent->FragmentPos() > pEngine->MaxSamplesPerCycle) { // FIXME: should be removed before the final release (purpose: just a sanity check for debugging)  
             dmsg(1,("Voice::Trigger(): ERROR, TriggerDelay > Totalsamples\n"));  
         }  
62    
63          Type            = type_normal;          si.HasLoops       = pRegion->SampleLoops;
64          MIDIKey         = itNoteOnEvent->Param.Note.Key;          si.LoopStart      = (si.HasLoops) ? pRegion->pSampleLoops[0].LoopStart  : 0;
65          pRegion         = pInstrument->GetRegion(MIDIKey);          si.LoopLength     = (si.HasLoops) ? pRegion->pSampleLoops[0].LoopLength : 0;
66          PlaybackState   = playback_state_ram; // we always start playback from RAM cache and switch then to disk if needed          si.LoopPlayCount  = pSample->LoopPlayCount;
67          Delay           = itNoteOnEvent->FragmentPos();          si.Unpitched      = !pRegion->PitchTrack;
         itTriggerEvent  = itNoteOnEvent;  
         itKillEvent     = Pool<Event>::Iterator();  
         itChildVoice    = Pool<Voice>::Iterator();  
   
         if (!pRegion) {  
             std::cerr << "gig::Voice: No Region defined for MIDI key " << MIDIKey << std::endl << std::flush;  
             KillImmediately();  
             return -1;  
         }  
68    
69          KeyGroup = pRegion->KeyGroup;          return si;
70        }
71    
72          // get current dimension values to select the right dimension region      Voice::RegionInfo Voice::GetRegionInfo() {
73          //FIXME: controller values for selecting the dimension region here are currently not sample accurate          RegionInfo ri;
74          uint DimValues[5] = {0,0,0,0,0};          ri.UnityNote = pRegion->UnityNote;
75          for (int i = pRegion->Dimensions - 1; i >= 0; i--) {          ri.FineTune  = pRegion->FineTune;
76              switch (pRegion->pDimensionDefinitions[i].dimension) {          ri.Pan       = pRegion->Pan;
77                  case ::gig::dimension_samplechannel:          ri.SampleStartOffset = pRegion->SampleStartOffset;
                     DimValues[i] = 0; //TODO: we currently ignore this dimension  
                     break;  
                 case ::gig::dimension_layer:  
                     DimValues[i] = iLayer;  
                     // if this is the 1st layer then spawn further voices for all the other layers  
                     if (iLayer == 0)  
                         for (int iNewLayer = 1; iNewLayer < pRegion->pDimensionDefinitions[i].zones; iNewLayer++)  
                             itChildVoice = pEngine->LaunchVoice(itNoteOnEvent, iNewLayer, ReleaseTriggerVoice, VoiceStealing);  
                     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) itNoteOnEvent->Param.Note.Key;  
                     break;  
                 case ::gig::dimension_modwheel:  
                     DimValues[i] = pEngine->ControllerTable[1];  
                     break;  
                 case ::gig::dimension_breath:  
                     DimValues[i] = pEngine->ControllerTable[2];  
                     break;  
                 case ::gig::dimension_foot:  
                     DimValues[i] = pEngine->ControllerTable[4];  
                     break;  
                 case ::gig::dimension_portamentotime:  
                     DimValues[i] = pEngine->ControllerTable[5];  
                     break;  
                 case ::gig::dimension_effect1:  
                     DimValues[i] = pEngine->ControllerTable[12];  
                     break;  
                 case ::gig::dimension_effect2:  
                     DimValues[i] = pEngine->ControllerTable[13];  
                     break;  
                 case ::gig::dimension_genpurpose1:  
                     DimValues[i] = pEngine->ControllerTable[16];  
                     break;  
                 case ::gig::dimension_genpurpose2:  
                     DimValues[i] = pEngine->ControllerTable[17];  
                     break;  
                 case ::gig::dimension_genpurpose3:  
                     DimValues[i] = pEngine->ControllerTable[18];  
                     break;  
                 case ::gig::dimension_genpurpose4:  
                     DimValues[i] = pEngine->ControllerTable[19];  
                     break;  
                 case ::gig::dimension_sustainpedal:  
                     DimValues[i] = pEngine->ControllerTable[64];  
                     break;  
                 case ::gig::dimension_portamento:  
                     DimValues[i] = pEngine->ControllerTable[65];  
                     break;  
                 case ::gig::dimension_sostenutopedal:  
                     DimValues[i] = pEngine->ControllerTable[66];  
                     break;  
                 case ::gig::dimension_softpedal:  
                     DimValues[i] = pEngine->ControllerTable[67];  
                     break;  
                 case ::gig::dimension_genpurpose5:  
                     DimValues[i] = pEngine->ControllerTable[80];  
                     break;  
                 case ::gig::dimension_genpurpose6:  
                     DimValues[i] = pEngine->ControllerTable[81];  
                     break;  
                 case ::gig::dimension_genpurpose7:  
                     DimValues[i] = pEngine->ControllerTable[82];  
                     break;  
                 case ::gig::dimension_genpurpose8:  
                     DimValues[i] = pEngine->ControllerTable[83];  
                     break;  
                 case ::gig::dimension_effect1depth:  
                     DimValues[i] = pEngine->ControllerTable[91];  
                     break;  
                 case ::gig::dimension_effect2depth:  
                     DimValues[i] = pEngine->ControllerTable[92];  
                     break;  
                 case ::gig::dimension_effect3depth:  
                     DimValues[i] = pEngine->ControllerTable[93];  
                     break;  
                 case ::gig::dimension_effect4depth:  
                     DimValues[i] = pEngine->ControllerTable[94];  
                     break;  
                 case ::gig::dimension_effect5depth:  
                     DimValues[i] = pEngine->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[4],DimValues[3],DimValues[2],DimValues[1],DimValues[0]);  
78    
79          pSample = pDimRgn->pSample; // sample won't change until the voice is finished          ri.EG1PreAttack        = pRegion->EG1PreAttack;
80            ri.EG1Attack           = pRegion->EG1Attack;
81            ri.EG1Hold             = pRegion->EG1Hold;
82            ri.EG1Decay1           = pRegion->EG1Decay1;
83            ri.EG1Decay2           = pRegion->EG1Decay2;
84            ri.EG1Sustain          = pRegion->EG1Sustain;
85            ri.EG1InfiniteSustain  = pRegion->EG1InfiniteSustain;
86            ri.EG1Release          = pRegion->EG1Release;
87    
88          // select channel mode (mono or stereo)          ri.EG2PreAttack        = pRegion->EG2PreAttack;
89          SYNTHESIS_MODE_SET_CHANNELS(SynthesisMode, pSample->Channels == 2);          ri.EG2Attack           = pRegion->EG2Attack;
90            ri.EG2Decay1           = pRegion->EG2Decay1;
91            ri.EG2Decay2           = pRegion->EG2Decay2;
92            ri.EG2Sustain          = pRegion->EG2Sustain;
93            ri.EG2InfiniteSustain  = pRegion->EG2InfiniteSustain;
94            ri.EG2Release          = pRegion->EG2Release;
95    
96          // get starting crossfade volume level          ri.EG3Attack     = pRegion->EG3Attack;
97          switch (pDimRgn->AttenuationController.type) {          ri.EG3Depth      = pRegion->EG3Depth;
98              case ::gig::attenuation_ctrl_t::type_channelaftertouch:          ri.VCFEnabled    = pRegion->VCFEnabled;
99                  CrossfadeVolume = 1.0f; //TODO: aftertouch not supported yet          ri.VCFType       = Filter::vcf_type_t(pRegion->VCFType);
100                  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(pEngine->ControllerTable[pDimRgn->AttenuationController.controller_number]);  
                 break;  
             case ::gig::attenuation_ctrl_t::type_none: // no crossfade defined  
             default:  
                 CrossfadeVolume = 1.0f;  
         }  
101    
102          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;  
103    
104          Pos = pDimRgn->SampleStartOffset; // offset where we should start playback of sample (0 - 2000 sample points)          return ri;
105        }
106    
107          // Check if the sample needs disk streaming or is too short for that      Voice::InstrumentInfo Voice::GetInstrumentInfo() {
108          long cachedsamples = pSample->GetCache().Size / pSample->FrameSize;          InstrumentInfo ii;
109          DiskVoice          = cachedsamples < pSample->SamplesTotal;          ii.FineTune = GetGigEngineChannel()->pInstrument->FineTune;
110            ii.PitchbendRange = GetGigEngineChannel()->pInstrument->PitchbendRange;
         if (DiskVoice) { // voice to be streamed from disk  
             MaxRAMPos = cachedsamples - (pEngine->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)  
   
             // 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;  
111    
112              if (pDiskThread->OrderNewStream(&DiskStreamRef, pSample, MaxRAMPos, !RAMLoop) < 0) {          return ii;
113                  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"));  
         }  
114    
115        double Voice::GetSampleAttenuation() {
116            return pRegion->SampleAttenuation;
117        }
118    
119          // calculate initial pitch value      double Voice::GetVelocityAttenuation(uint8_t MIDIKeyVelocity) {
120          {          return pRegion->GetVelocityAttenuation(MIDIKeyVelocity);
121              double pitchbasecents = pDimRgn->FineTune * 10 + (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  
         }  
122    
123          Volume = pDimRgn->GetVelocityAttenuation(itNoteOnEvent->Param.Note.Velocity) / 32768.0f; // we downscale by 32768 to convert from int16 value range to DSP value range (which is -1.0..1.0)      double Voice::GetVelocityRelease(uint8_t MIDIKeyVelocity) {
124            return pRegion->GetVelocityRelease(MIDIKeyVelocity);
125        }
126    
127          // setup EG 1 (VCA EG)      void Voice::ProcessCCEvent(RTList<Event>::Iterator& itEvent) {
128          {          if (itEvent->Type == Event::type_control_change && itEvent->Param.CC.Controller) { // if (valid) MIDI control change event
129              // get current value of EG1 controller              if (pRegion->AttenuationController.type == ::gig::attenuation_ctrl_t::type_controlchange &&
130              double eg1controllervalue;                  itEvent->Param.CC.Controller == pRegion->AttenuationController.controller_number) {
131              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 = pEngine->ControllerTable[pDimRgn->EG1Controller.controller_number];  
                     break;  
132              }              }
             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,  
                           pDimRgn->EG1Decay2 + eg1decay,  
                           pDimRgn->EG1InfiniteSustain,  
                           pDimRgn->EG1Sustain,  
                           pDimRgn->EG1Release + eg1release,  
                           Delay);  
133          }          }
134        }
135    
136        void Voice::ProcessCutoffEvent(RTList<Event>::Iterator& itEvent) {
137            int ccvalue = itEvent->Param.CC.Value;
138            if (VCFCutoffCtrl.value == ccvalue) return;
139            VCFCutoffCtrl.value = ccvalue;
140            if (pRegion->VCFCutoffControllerInvert)  ccvalue = 127 - ccvalue;
141            if (ccvalue < pRegion->VCFVelocityScale) ccvalue = pRegion->VCFVelocityScale;
142            float cutoff = CutoffBase * float(ccvalue);
143            if (cutoff > 127.0f) cutoff = 127.0f;
144    
145          // setup EG 2 (VCF Cutoff EG)          VCFCutoffCtrl.fvalue = cutoff; // needed for initialization of fFinalCutoff next time
146          {          fFinalCutoff = cutoff;
147              // get current value of EG2 controller      }
             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 = pEngine->ControllerTable[pDimRgn->EG2Controller.controller_number];  
                     break;  
             }  
             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,  
                           pDimRgn->EG2Decay2 + eg2decay,  
                           pDimRgn->EG2InfiniteSustain,  
                           pDimRgn->EG2Sustain,  
                           pDimRgn->EG2Release + eg2release,  
                           Delay);  
         }  
   
   
         // setup EG 3 (VCO EG)  
         {  
           double eg3depth = RTMath::CentsToFreqRatio(pDimRgn->EG3Depth);  
           pEG3->Trigger(eg3depth, pDimRgn->EG3Attack, Delay);  
         }  
   
   
         // setup LFO 1 (VCA LFO)  
         {  
             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,  
                           pEngine->SampleRate,  
                           Delay);  
         }  
   
148    
149          // setup LFO 2 (VCF Cutoff LFO)      double Voice::CalculateCrossfadeVolume(uint8_t MIDIKeyVelocity) {
150          {          float crossfadeVolume;
151              uint16_t lfo2_internal_depth;          switch (pRegion->AttenuationController.type) {
152              switch (pDimRgn->LFO2Controller) {              case ::gig::attenuation_ctrl_t::type_channelaftertouch:
153                  case ::gig::lfo2_ctrl_internal:                  crossfadeVolume = Engine::CrossfadeCurve[CrossfadeAttenuation(GetGigEngineChannel()->ControllerTable[128])];
154                      lfo2_internal_depth  = pDimRgn->LFO2InternalDepth;                  break;
155                      pLFO2->ExtController = 0; // no external controller              case ::gig::attenuation_ctrl_t::type_velocity:
156                      break;                  crossfadeVolume = Engine::CrossfadeCurve[CrossfadeAttenuation(MIDIKeyVelocity)];
157                  case ::gig::lfo2_ctrl_modwheel:                  break;
158                      lfo2_internal_depth  = 0;              case ::gig::attenuation_ctrl_t::type_controlchange: //FIXME: currently not sample accurate
159                      pLFO2->ExtController = 1; // MIDI controller 1                  crossfadeVolume = Engine::CrossfadeCurve[CrossfadeAttenuation(GetGigEngineChannel()->ControllerTable[pRegion->AttenuationController.controller_number])];
160                      break;                  break;
161                  case ::gig::lfo2_ctrl_foot:              case ::gig::attenuation_ctrl_t::type_none: // no crossfade defined
162                      lfo2_internal_depth  = 0;              default:
163                      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,  
                           pEngine->ControllerTable[pLFO2->ExtController],  
                           pDimRgn->LFO2FlipPhase,  
                           pEngine->SampleRate,  
                           Delay);  
164          }          }
165    
166            return crossfadeVolume;
167        }
168    
169          // setup LFO 3 (VCO LFO)      double Voice::GetEG1ControllerValue(uint8_t MIDIKeyVelocity) {
170          {          double eg1controllervalue = 0;
171              uint16_t lfo3_internal_depth;          switch (pRegion->EG1Controller.type) {
172              switch (pDimRgn->LFO3Controller) {              case ::gig::eg1_ctrl_t::type_none: // no controller defined
173                  case ::gig::lfo3_ctrl_internal:                  eg1controllervalue = 0;
174                      lfo3_internal_depth  = pDimRgn->LFO3InternalDepth;                  break;
175                      pLFO3->ExtController = 0; // no external controller              case ::gig::eg1_ctrl_t::type_channelaftertouch:
176                      break;                  eg1controllervalue = GetGigEngineChannel()->ControllerTable[128];
177                  case ::gig::lfo3_ctrl_modwheel:                  break;
178                      lfo3_internal_depth  = 0;              case ::gig::eg1_ctrl_t::type_velocity:
179                      pLFO3->ExtController = 1; // MIDI controller 1                  eg1controllervalue = MIDIKeyVelocity;
180                      break;                  break;
181                  case ::gig::lfo3_ctrl_aftertouch:              case ::gig::eg1_ctrl_t::type_controlchange: // MIDI control change controller
182                      lfo3_internal_depth  = 0;                  eg1controllervalue = GetGigEngineChannel()->ControllerTable[pRegion->EG1Controller.controller_number];
183                      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,  
                           pEngine->ControllerTable[pLFO3->ExtController],  
                           false,  
                           pEngine->SampleRate,  
                           Delay);  
184          }          }
185            if (pRegion->EG1ControllerInvert) eg1controllervalue = 127 - eg1controllervalue;
186    
187            return eg1controllervalue;
188        }
189    
190          #if FORCE_FILTER_USAGE      Voice::EGInfo Voice::CalculateEG1ControllerInfluence(double eg1ControllerValue) {
191          SYNTHESIS_MODE_SET_FILTER(SynthesisMode, true);          EGInfo eg;
192          #else // use filter only if instrument file told so          // (eg1attack is different from the others)
193          SYNTHESIS_MODE_SET_FILTER(SynthesisMode, pDimRgn->VCFEnabled);          eg.Attack  = (pRegion->EG1ControllerAttackInfluence)  ?
194          #endif // FORCE_FILTER_USAGE              1 + 0.031 * (double) (pRegion->EG1ControllerAttackInfluence == 1 ?
195          if (pDimRgn->VCFEnabled) {                                    1 : 1 << pRegion->EG1ControllerAttackInfluence) * eg1ControllerValue : 1.0;
196              #ifdef OVERRIDE_FILTER_CUTOFF_CTRL          eg.Decay   = (pRegion->EG1ControllerDecayInfluence)   ? 1 + 0.00775 * (double) (1 << pRegion->EG1ControllerDecayInfluence)   * eg1ControllerValue : 1.0;
197              VCFCutoffCtrl.controller = OVERRIDE_FILTER_CUTOFF_CTRL;          eg.Release = (pRegion->EG1ControllerReleaseInfluence) ? 1 + 0.00775 * (double) (1 << pRegion->EG1ControllerReleaseInfluence) * eg1ControllerValue : 1.0;
             #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  
   
             #ifdef OVERRIDE_FILTER_RES_CTRL  
             VCFResonanceCtrl.controller = OVERRIDE_FILTER_RES_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 // OVERRIDE_FILTER_RES_CTRL  
   
             #ifndef OVERRIDE_FILTER_TYPE  
             FilterLeft.SetType(pDimRgn->VCFType);  
             FilterRight.SetType(pDimRgn->VCFType);  
             #else // override filter type  
             FilterLeft.SetType(OVERRIDE_FILTER_TYPE);  
             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 - itNoteOnEvent->Param.Note.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) (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 - FILTER_CUTOFF_MIN;  
             VCFResonanceCtrl.fvalue = resonance;  
198    
199              FilterUpdateCounter = -1;          return eg;
         }  
         else {  
             VCFCutoffCtrl.controller    = 0;  
             VCFResonanceCtrl.controller = 0;  
         }  
   
         return 0; // success  
200      }      }
201    
202      /**      double Voice::GetEG2ControllerValue(uint8_t MIDIKeyVelocity) {
203       *  Renders the audio data for this voice for the current audio fragment.          double eg2controllervalue = 0;
204       *  The sample input data can either come from RAM (cached sample or sample          switch (pRegion->EG2Controller.type) {
205       *  part) or directly from disk. The output signal will be rendered by              case ::gig::eg2_ctrl_t::type_none: // no controller defined
206       *  resampling / interpolation. If this voice is a disk streaming voice and                  eg2controllervalue = 0;
207       *  the voice completely played back the cached RAM part of the sample, it                  break;
208       *  will automatically switch to disk playback for the next RenderAudio()              case ::gig::eg2_ctrl_t::type_channelaftertouch:
209       *  call.                  eg2controllervalue = GetGigEngineChannel()->ControllerTable[128];
210       *                  break;
211       *  @param Samples - number of samples to be rendered in this audio fragment cycle              case ::gig::eg2_ctrl_t::type_velocity:
212       */                  eg2controllervalue = MIDIKeyVelocity;
213      void Voice::Render(uint Samples) {                  break;
214                case ::gig::eg2_ctrl_t::type_controlchange: // MIDI control change controller
215          // select default values for synthesis mode bits                  eg2controllervalue = GetGigEngineChannel()->ControllerTable[pRegion->EG2Controller.controller_number];
216          SYNTHESIS_MODE_SET_INTERPOLATE(SynthesisMode, (PitchBase * PitchBend) != 1.0f);                  break;
         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 * pEngine->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, pEngine->pMIDIKeyInfo[MIDIKey].pEvents, itTriggerEvent, this->Pos, this->PitchBase * this->PitchBend, itKillEvent);  
         pEG2->Process(Samples, pEngine->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);  
217          }          }
218            if (pRegion->EG2ControllerInvert) eg2controllervalue = 127 - eg2controllervalue;
219    
220          if (SYNTHESIS_MODE_GET_FILTER(SynthesisMode))          return eg2controllervalue;
221                  CalculateBiquadParameters(Samples); // calculate the final biquad filter parameters      }
222    
223          switch (this->PlaybackState) {      Voice::EGInfo Voice::CalculateEG2ControllerInfluence(double eg2ControllerValue) {
224            EGInfo eg;
225            eg.Attack  = (pRegion->EG2ControllerAttackInfluence)  ? 1 + 0.00775 * (double) (1 << pRegion->EG2ControllerAttackInfluence)  * eg2ControllerValue : 1.0;
226            eg.Decay   = (pRegion->EG2ControllerDecayInfluence)   ? 1 + 0.00775 * (double) (1 << pRegion->EG2ControllerDecayInfluence)   * eg2ControllerValue : 1.0;
227            eg.Release = (pRegion->EG2ControllerReleaseInfluence) ? 1 + 0.00775 * (double) (1 << pRegion->EG2ControllerReleaseInfluence) * eg2ControllerValue : 1.0;
228    
229              case playback_state_ram: {          return eg;
230                      if (RAMLoop) SYNTHESIS_MODE_SET_LOOP(SynthesisMode, true); // enable looping      }
231    
232                      // render current fragment      void Voice::InitLFO1() {
233                      Synthesize(Samples, (sample_t*) pSample->GetCache().pStart, Delay);          uint16_t lfo1_internal_depth;
234            switch (pRegion->LFO1Controller) {
235                      if (DiskVoice) {              case ::gig::lfo1_ctrl_internal:
236                          // check if we reached the allowed limit of the sample RAM cache                  lfo1_internal_depth  = pRegion->LFO1InternalDepth;
237                          if (Pos > MaxRAMPos) {                  pLFO1->ExtController = 0; // no external controller
238                              dmsg(5,("Voice: switching to disk playback (Pos=%f)\n", Pos));                  bLFO1Enabled         = (lfo1_internal_depth > 0);
                             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 << 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;  
                     }  
                 }  
239                  break;                  break;
240                case ::gig::lfo1_ctrl_modwheel:
241              case playback_state_end:                  lfo1_internal_depth  = 0;
242                  std::cerr << "gig::Voice::Render(): entered with playback_state_end, this is a bug!\n" << std::flush;                  pLFO1->ExtController = 1; // MIDI controller 1
243                    bLFO1Enabled         = (pRegion->LFO1ControlDepth > 0);
244                    break;
245                case ::gig::lfo1_ctrl_breath:
246                    lfo1_internal_depth  = 0;
247                    pLFO1->ExtController = 2; // MIDI controller 2
248                    bLFO1Enabled         = (pRegion->LFO1ControlDepth > 0);
249                    break;
250                case ::gig::lfo1_ctrl_internal_modwheel:
251                    lfo1_internal_depth  = pRegion->LFO1InternalDepth;
252                    pLFO1->ExtController = 1; // MIDI controller 1
253                    bLFO1Enabled         = (lfo1_internal_depth > 0 || pRegion->LFO1ControlDepth > 0);
254                  break;                  break;
255                case ::gig::lfo1_ctrl_internal_breath:
256                    lfo1_internal_depth  = pRegion->LFO1InternalDepth;
257                    pLFO1->ExtController = 2; // MIDI controller 2
258                    bLFO1Enabled         = (lfo1_internal_depth > 0 || pRegion->LFO1ControlDepth > 0);
259                    break;
260                default:
261                    lfo1_internal_depth  = 0;
262                    pLFO1->ExtController = 0; // no external controller
263                    bLFO1Enabled         = false;
264            }
265            if (bLFO1Enabled) {
266                pLFO1->trigger(pRegion->LFO1Frequency,
267                               start_level_min,
268                               lfo1_internal_depth,
269                               pRegion->LFO1ControlDepth,
270                               pRegion->LFO1FlipPhase,
271                               pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
272                pLFO1->update(pLFO1->ExtController ? GetGigEngineChannel()->ControllerTable[pLFO1->ExtController] : 0);
273          }          }
274        }
275    
276          // Reset synthesis event lists (except VCO, as VCO events apply channel wide currently)      void Voice::InitLFO2() {
277          pEngine->pSynthesisEvents[Event::destination_vca]->clear();          uint16_t lfo2_internal_depth;
278          pEngine->pSynthesisEvents[Event::destination_vcfc]->clear();          switch (pRegion->LFO2Controller) {
279          pEngine->pSynthesisEvents[Event::destination_vcfr]->clear();              case ::gig::lfo2_ctrl_internal:
280                    lfo2_internal_depth  = pRegion->LFO2InternalDepth;
281          // Reset delay                  pLFO2->ExtController = 0; // no external controller
282          Delay = 0;                  bLFO2Enabled         = (lfo2_internal_depth > 0);
283                    break;
284          itTriggerEvent = Pool<Event>::Iterator();              case ::gig::lfo2_ctrl_modwheel:
285                    lfo2_internal_depth  = 0;
286          // If sample stream or release stage finished, kill the voice                  pLFO2->ExtController = 1; // MIDI controller 1
287          if (PlaybackState == playback_state_end || pEG1->GetStage() == EGADSR::stage_end) KillImmediately();                  bLFO2Enabled         = (pRegion->LFO2ControlDepth > 0);
288      }                  break;
289                case ::gig::lfo2_ctrl_foot:
290      /**                  lfo2_internal_depth  = 0;
291       *  Resets voice variables. Should only be called if rendering process is                  pLFO2->ExtController = 4; // MIDI controller 4
292       *  suspended / not running.                  bLFO2Enabled         = (pRegion->LFO2ControlDepth > 0);
293       */                  break;
294      void Voice::Reset() {              case ::gig::lfo2_ctrl_internal_modwheel:
295          pLFO1->Reset();                  lfo2_internal_depth  = pRegion->LFO2InternalDepth;
296          pLFO2->Reset();                  pLFO2->ExtController = 1; // MIDI controller 1
297          pLFO3->Reset();                  bLFO2Enabled         = (lfo2_internal_depth > 0 || pRegion->LFO2ControlDepth > 0);
298          FilterLeft.Reset();                  break;
299          FilterRight.Reset();              case ::gig::lfo2_ctrl_internal_foot:
300          DiskStreamRef.pStream = NULL;                  lfo2_internal_depth  = pRegion->LFO2InternalDepth;
301          DiskStreamRef.hStream = 0;                  pLFO2->ExtController = 4; // MIDI controller 4
302          DiskStreamRef.State   = Stream::state_unused;                  bLFO2Enabled         = (lfo2_internal_depth > 0 || pRegion->LFO2ControlDepth > 0);
303          DiskStreamRef.OrderID = 0;                  break;
304          PlaybackState = playback_state_end;              default:
305          itTriggerEvent = Pool<Event>::Iterator();                  lfo2_internal_depth  = 0;
306          itKillEvent    = Pool<Event>::Iterator();                  pLFO2->ExtController = 0; // no external controller
307      }                  bLFO2Enabled         = false;
308            }
309      /**          if (bLFO2Enabled) {
310       *  Process the control change event lists of the engine for the current              pLFO2->trigger(pRegion->LFO2Frequency,
311       *  audio fragment. Event values will be applied to the synthesis parameter                             start_level_max,
312       *  matrix.                             lfo2_internal_depth,
313       *                             pRegion->LFO2ControlDepth,
314       *  @param Samples - number of samples to be rendered in this audio fragment cycle                             pRegion->LFO2FlipPhase,
315       */                             pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
316      void Voice::ProcessEvents(uint Samples) {              pLFO2->update(pLFO2->ExtController ? GetGigEngineChannel()->ControllerTable[pLFO2->ExtController] : 0);
   
         // dispatch control change events  
         RTList<Event>::Iterator itCCEvent = pEngine->pCCEvents->first();  
         if (Delay) { // skip events that happened before this voice was triggered  
             while (itCCEvent && itCCEvent->FragmentPos() <= Delay) ++itCCEvent;  
317          }          }
318          while (itCCEvent) {      }
             if (itCCEvent->Param.CC.Controller) { // if valid MIDI controller  
                 if (itCCEvent->Param.CC.Controller == VCFCutoffCtrl.controller) {  
                     *pEngine->pSynthesisEvents[Event::destination_vcfc]->allocAppend() = *itCCEvent;  
                 }  
                 if (itCCEvent->Param.CC.Controller == VCFResonanceCtrl.controller) {  
                     *pEngine->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  
                     *pEngine->pSynthesisEvents[Event::destination_vca]->allocAppend() = *itCCEvent;  
                 }  
             }  
319    
320              ++itCCEvent;      void Voice::InitLFO3() {
321            uint16_t lfo3_internal_depth;
322            switch (pRegion->LFO3Controller) {
323                case ::gig::lfo3_ctrl_internal:
324                    lfo3_internal_depth  = pRegion->LFO3InternalDepth;
325                    pLFO3->ExtController = 0; // no external controller
326                    bLFO3Enabled         = (lfo3_internal_depth > 0);
327                    break;
328                case ::gig::lfo3_ctrl_modwheel:
329                    lfo3_internal_depth  = 0;
330                    pLFO3->ExtController = 1; // MIDI controller 1
331                    bLFO3Enabled         = (pRegion->LFO3ControlDepth > 0);
332                    break;
333                case ::gig::lfo3_ctrl_aftertouch:
334                    lfo3_internal_depth  = 0;
335                    pLFO3->ExtController = 128;
336                    bLFO3Enabled         = true;
337                    break;
338                case ::gig::lfo3_ctrl_internal_modwheel:
339                    lfo3_internal_depth  = pRegion->LFO3InternalDepth;
340                    pLFO3->ExtController = 1; // MIDI controller 1
341                    bLFO3Enabled         = (lfo3_internal_depth > 0 || pRegion->LFO3ControlDepth > 0);
342                    break;
343                case ::gig::lfo3_ctrl_internal_aftertouch:
344                    lfo3_internal_depth  = pRegion->LFO3InternalDepth;
345                    pLFO3->ExtController = 128;
346                    bLFO3Enabled         = (lfo3_internal_depth > 0 || pRegion->LFO3ControlDepth > 0);
347                    break;
348                default:
349                    lfo3_internal_depth  = 0;
350                    pLFO3->ExtController = 0; // no external controller
351                    bLFO3Enabled         = false;
352            }
353            if (bLFO3Enabled) {
354                pLFO3->trigger(pRegion->LFO3Frequency,
355                               start_level_mid,
356                               lfo3_internal_depth,
357                               pRegion->LFO3ControlDepth,
358                               false,
359                               pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
360                pLFO3->update(pLFO3->ExtController ? GetGigEngineChannel()->ControllerTable[pLFO3->ExtController] : 0);
361          }          }
362        }
363    
364        float Voice::CalculateCutoffBase(uint8_t MIDIKeyVelocity) {
365          // process pitch events          float cutoff = pRegion->GetVelocityCutoff(MIDIKeyVelocity);
366          {          if (pRegion->VCFKeyboardTracking) {
367              RTList<Event>* pVCOEventList = pEngine->pSynthesisEvents[Event::destination_vco];              cutoff *= RTMath::CentsToFreqRatioUnlimited((MIDIKey - pRegion->VCFKeyboardTrackingBreakpoint) * 100);
368              RTList<Event>::Iterator itVCOEvent = pVCOEventList->first();          }
369              if (Delay) { // skip events that happened before this voice was triggered          return cutoff;
370                  while (itVCOEvent && itVCOEvent->FragmentPos() <= Delay) ++itVCOEvent;      }
371              }  
372              // apply old pitchbend value until first pitch event occurs      float Voice::CalculateFinalCutoff(float cutoffBase) {
373              if (this->PitchBend != 1.0) {          int cvalue;
374                  uint end = (itVCOEvent) ? itVCOEvent->FragmentPos() : Samples;          if (VCFCutoffCtrl.controller) {
375                  for (uint i = Delay; i < end; i++) {              cvalue = GetGigEngineChannel()->ControllerTable[VCFCutoffCtrl.controller];
376                      pEngine->pSynthesisParameters[Event::destination_vco][i] *= this->PitchBend;              if (pRegion->VCFCutoffControllerInvert) cvalue = 127 - cvalue;
377                  }              // VCFVelocityScale in this case means Minimum cutoff
378              }              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);  
             }  
379          }          }
380            else {
381          // process volume / attenuation events (TODO: we only handle and _expect_ crossfade events here ATM !)              cvalue = pRegion->VCFCutoff;
         {  
             RTList<Event>* pVCAEventList = pEngine->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 * pEngine->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;  
382          }          }
383            float fco = cutoffBase * float(cvalue);
384            if (fco > 127.0f) fco = 127.0f;
385    
386          // process filter cutoff events          return fco;
387          {      }
             RTList<Event>* pCutoffEventList = pEngine->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) * FILTER_CUTOFF_MAX - 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;  
                 }  
388    
389                  itCutoffEvent = itNextCutoffEvent;      uint8_t Voice::GetVCFCutoffCtrl() {
390              }          uint8_t ctrl;
391              if (!pCutoffEventList->isEmpty()) VCFCutoffCtrl.fvalue = cutoff; // needed for initialization of parameter matrix next time          switch (pRegion->VCFCutoffController) {
392                case ::gig::vcf_cutoff_ctrl_modwheel:
393                    ctrl = 1;
394                    break;
395                case ::gig::vcf_cutoff_ctrl_effect1:
396                    ctrl = 12;
397                    break;
398                case ::gig::vcf_cutoff_ctrl_effect2:
399                    ctrl = 13;
400                    break;
401                case ::gig::vcf_cutoff_ctrl_breath:
402                    ctrl = 2;
403                    break;
404                case ::gig::vcf_cutoff_ctrl_foot:
405                    ctrl = 4;
406                    break;
407                case ::gig::vcf_cutoff_ctrl_sustainpedal:
408                    ctrl = 64;
409                    break;
410                case ::gig::vcf_cutoff_ctrl_softpedal:
411                    ctrl = 67;
412                    break;
413                case ::gig::vcf_cutoff_ctrl_genpurpose7:
414                    ctrl = 82;
415                    break;
416                case ::gig::vcf_cutoff_ctrl_genpurpose8:
417                    ctrl = 83;
418                    break;
419                case ::gig::vcf_cutoff_ctrl_aftertouch:
420                    ctrl = 128;
421                    break;
422                case ::gig::vcf_cutoff_ctrl_none:
423                default:
424                    ctrl = 0;
425                    break;
426          }          }
427    
428          // process filter resonance events          return ctrl;
         {  
             RTList<Event>* pResonanceEventList = pEngine->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  
         }  
429      }      }
430    
431      /**      uint8_t Voice::GetVCFResonanceCtrl() {
432       * Calculate all necessary, final biquad filter parameters.          uint8_t ctrl;
433       *          switch (pRegion->VCFResonanceController) {
434       * @param Samples - number of samples to be rendered in this audio fragment cycle              case ::gig::vcf_res_ctrl_genpurpose3:
435       */                  ctrl = 18;
436      void Voice::CalculateBiquadParameters(uint Samples) {                  break;
437          biquad_param_t bqbase;              case ::gig::vcf_res_ctrl_genpurpose4:
438          biquad_param_t bqmain;                  ctrl = 19;
439          float prev_cutoff = pEngine->pSynthesisParameters[Event::destination_vcfc][0];                  break;
440          float prev_res    = pEngine->pSynthesisParameters[Event::destination_vcfr][0];              case ::gig::vcf_res_ctrl_genpurpose5:
441          FilterLeft.SetParameters(&bqbase, &bqmain, prev_cutoff, prev_res, pEngine->SampleRate);                  ctrl = 80;
442          FilterRight.SetParameters(&bqbase, &bqmain, prev_cutoff, prev_res, pEngine->SampleRate);                  break;
443          pEngine->pBasicFilterParameters[0] = bqbase;              case ::gig::vcf_res_ctrl_genpurpose6:
444          pEngine->pMainFilterParameters[0]  = bqmain;                  ctrl = 81;
445                    break;
446          float* bq;              case ::gig::vcf_res_ctrl_none:
447          for (int i = 1; i < Samples; i++) {              default:
448              // 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, prev_res, pEngine->SampleRate);  
                     FilterRight.SetParameters(&bqbase, &bqmain, prev_cutoff, 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;  
449          }          }
     }  
450    
451      /**          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();  
452      }      }
453    
454      /**      void Voice::TriggerEG1(const EGInfo& egInfo, double velrelease, double velocityAttenuation, uint sampleRate, uint8_t velocity) {
455       *  Kill the voice in regular sense. Let the voice render audio until          EG1.trigger(uint(RgnInfo.EG1PreAttack),
456       *  the kill event actually occured and then fade down the volume level                      RgnInfo.EG1Attack * egInfo.Attack,
457       *  very quickly and let the voice die finally. Unlike a normal release                      RgnInfo.EG1Hold,
458       *  of a voice, a kill process cannot be cancalled and is therefore                      RgnInfo.EG1Decay1 * egInfo.Decay * velrelease,
459       *  usually used for voice stealing and key group conflicts.                      RgnInfo.EG1Decay2 * egInfo.Decay * velrelease,
460       *                      RgnInfo.EG1InfiniteSustain,
461       *  @param itKillEvent - event which caused the voice to be killed                      uint(RgnInfo.EG1Sustain),
462       */                      RgnInfo.EG1Release * egInfo.Release * velrelease,
463      void Voice::Kill(Pool<Event>::Iterator& itKillEvent) {                      velocityAttenuation,
464          //FIXME: just two sanity checks for debugging, can be removed                      sampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
465          if (!itKillEvent) dmsg(1,("gig::Voice::Kill(): ERROR, !itKillEvent !!!\n"));      }
466          if (itKillEvent && !itKillEvent.isValid()) dmsg(1,("gig::Voice::Kill(): ERROR, itKillEvent invalid !!!\n"));  
467        void Voice::TriggerEG2(const EGInfo& egInfo, double velrelease, double velocityAttenuation, uint sampleRate, uint8_t velocity) {
468            EG2.trigger(uint(RgnInfo.EG2PreAttack),
469                        RgnInfo.EG2Attack * egInfo.Attack,
470                        false,
471                        RgnInfo.EG2Decay1 * egInfo.Decay * velrelease,
472                        RgnInfo.EG2Decay2 * egInfo.Decay * velrelease,
473                        RgnInfo.EG2InfiniteSustain,
474                        uint(RgnInfo.EG2Sustain),
475                        RgnInfo.EG2Release * egInfo.Release * velrelease,
476                        velocityAttenuation,
477                        sampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
478        }
479    
480        void Voice::ProcessGroupEvent(RTList<Event>::Iterator& itEvent) {
481            dmsg(4,("Voice %x processGroupEvents event type=%d", this, itEvent->Type));
482    
483            // TODO: The SustainPedal condition could be wrong, maybe the
484            // check should be if this Voice is in release stage or is a
485            // release sample instead. Need to test this in GSt.
486            if (itEvent->Param.Note.Key != MIDIKey ||
487                !GetGigEngineChannel()->SustainPedal) {
488                dmsg(4,("Voice %x - kill", this));
489    
490          if (itTriggerEvent && itKillEvent->FragmentPos() <= itTriggerEvent->FragmentPos()) return;              // kill the voice fast
491          this->itKillEvent = itKillEvent;              pEG1->enterFadeOutStage();
492            }
493      }      }
494    
495  }} // namespace LinuxSampler::gig  }} // namespace LinuxSampler::gig
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