/[svn]/linuxsampler/trunk/src/engines/gig/Voice.cpp
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revision 841 by persson, Sat Mar 4 16:23:53 2006 UTC revision 3652 by schoenebeck, Wed Dec 11 11:10:24 2019 UTC
# Line 3  Line 3 
3   *   LinuxSampler - modular, streaming capable sampler                     *   *   LinuxSampler - modular, streaming capable sampler                     *
4   *                                                                         *   *                                                                         *
5   *   Copyright (C) 2003, 2004 by Benno Senoner and Christian Schoenebeck   *   *   Copyright (C) 2003, 2004 by Benno Senoner and Christian Schoenebeck   *
6   *   Copyright (C) 2005, 2006 Christian Schoenebeck                        *   *   Copyright (C) 2005 - 2008 Christian Schoenebeck                       *
7     *   Copyright (C) 2009 Christian Schoenebeck and Grigor Iliev             *
8     *   Copyright (C) 2010 - 2017 Christian Schoenebeck and Andreas Persson   *
9   *                                                                         *   *                                                                         *
10   *   This program is free software; you can redistribute it and/or modify  *   *   This program is free software; you can redistribute it and/or modify  *
11   *   it under the terms of the GNU General Public License as published by  *   *   it under the terms of the GNU General Public License as published by  *
# Line 24  Line 26 
26  #include "../../common/Features.h"  #include "../../common/Features.h"
27  #include "Synthesizer.h"  #include "Synthesizer.h"
28  #include "Profiler.h"  #include "Profiler.h"
29    #include "Engine.h"
30    #include "EngineChannel.h"
31    
32  #include "Voice.h"  #include "Voice.h"
33    
34  namespace LinuxSampler { namespace gig {  namespace LinuxSampler { namespace gig {
35    
36      const float Voice::FILTER_CUTOFF_COEFF(CalculateFilterCutoffCoeff());      // sanity checks: fromGigLfoWave() assumes equally mapped enums
37        static_assert(int64_t(::gig::lfo_wave_sine) == int64_t(LFO::wave_sine),
38      float Voice::CalculateFilterCutoffCoeff() {                    "enum LFO::wave_t not equally value mapped to libgig's enum ::gig::lfo_wave_t");
39          return log(CONFIG_FILTER_CUTOFF_MAX / CONFIG_FILTER_CUTOFF_MIN);      static_assert(int64_t(::gig::lfo_wave_triangle) == int64_t(LFO::wave_triangle),
40                      "enum LFO::wave_t not equally value mapped to libgig's enum ::gig::lfo_wave_t");
41        static_assert(int64_t(::gig::lfo_wave_saw) == int64_t(LFO::wave_saw),
42                      "enum LFO::wave_t not equally value mapped to libgig's enum ::gig::lfo_wave_t");
43        static_assert(int64_t(::gig::lfo_wave_square) == int64_t(LFO::wave_square),
44                      "enum LFO::wave_t not equally value mapped to libgig's enum ::gig::lfo_wave_t");
45    
46        // converts ::gig::lfo_wave_t (libgig) -> LFO::wave_t (LinuxSampler)
47        inline LFO::wave_t fromGigLfoWave(::gig::lfo_wave_t wave) {
48            // simply assuming equally mapped enums on both sides
49            return static_cast<LFO::wave_t>(wave);
50      }      }
51    
52      Voice::Voice() {      Voice::Voice() {
53          pEngine     = NULL;          pEngine = NULL;
54          pDiskThread = NULL;          pEG1 = &EG1;
55          PlaybackState = playback_state_end;          pEG2 = &EG2;
         pLFO1 = new LFOUnsigned(1.0f);  // amplitude EG (0..1 range)  
         pLFO2 = new LFOUnsigned(1.0f);  // filter EG (0..1 range)  
         pLFO3 = new LFOSigned(1200.0f); // pitch EG (-1200..+1200 range)  
         KeyGroup = 0;  
         SynthesisMode = 0; // set all mode bits to 0 first  
         // select synthesis implementation (currently either pure C++ or MMX+SSE(1))  
         #if CONFIG_ASM && ARCH_X86  
         SYNTHESIS_MODE_SET_IMPLEMENTATION(SynthesisMode, Features::supportsMMX() && Features::supportsSSE());  
         #else  
         SYNTHESIS_MODE_SET_IMPLEMENTATION(SynthesisMode, false);  
         #endif  
         SYNTHESIS_MODE_SET_PROFILING(SynthesisMode, Profiler::isEnabled());  
   
         finalSynthesisParameters.filterLeft.Reset();  
         finalSynthesisParameters.filterRight.Reset();  
56      }      }
57    
58      Voice::~Voice() {      Voice::~Voice() {
         if (pLFO1) delete pLFO1;  
         if (pLFO2) delete pLFO2;  
         if (pLFO3) delete pLFO3;  
59      }      }
60    
61      void Voice::SetEngine(Engine* pEngine) {      EngineChannel* Voice::GetGigEngineChannel() {
62          this->pEngine     = pEngine;          return static_cast<EngineChannel*>(pEngineChannel);
63          this->pDiskThread = pEngine->pDiskThread;      }
64    
65        void Voice::SetEngine(LinuxSampler::Engine* pEngine) {
66            Engine* engine = static_cast<Engine*>(pEngine);
67            this->pEngine     = engine;
68            this->pDiskThread = engine->pDiskThread;
69          dmsg(6,("Voice::SetEngine()\n"));          dmsg(6,("Voice::SetEngine()\n"));
70      }      }
71    
72      /**      Voice::SampleInfo Voice::GetSampleInfo() {
73       *  Initializes and triggers the voice, a disk stream will be launched if          SampleInfo si;
74       *  needed.          si.SampleRate       = pSample->SamplesPerSecond;
75       *          si.ChannelCount     = pSample->Channels;
76       *  @param pEngineChannel - engine channel on which this voice was ordered          si.FrameSize        = pSample->FrameSize;
77       *  @param itNoteOnEvent  - event that caused triggering of this voice          si.BitDepth         = pSample->BitDepth;
78       *  @param PitchBend      - MIDI detune factor (-8192 ... +8191)          si.TotalFrameCount  = (uint)pSample->SamplesTotal;
      *  @param pDimRgn        - points to the dimension region which provides sample wave(s) and articulation data  
      *  @param VoiceType      - type of this voice  
      *  @param iKeyGroup      - a value > 0 defines a key group in which this voice is member of  
      *  @returns 0 on success, a value < 0 if the voice wasn't triggered  
      *           (either due to an error or e.g. because no region is  
      *           defined for the given key)  
      */  
     int Voice::Trigger(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itNoteOnEvent, int PitchBend, ::gig::DimensionRegion* pDimRgn, type_t VoiceType, int iKeyGroup) {  
         this->pEngineChannel = pEngineChannel;  
         this->pDimRgn        = pDimRgn;  
   
         #if CONFIG_DEVMODE  
         if (itNoteOnEvent->FragmentPos() > pEngine->MaxSamplesPerCycle) { // just a sanity check for debugging  
             dmsg(1,("Voice::Trigger(): ERROR, TriggerDelay > Totalsamples\n"));  
         }  
         #endif // CONFIG_DEVMODE  
   
         Type            = VoiceType;  
         MIDIKey         = itNoteOnEvent->Param.Note.Key;  
         PlaybackState   = playback_state_init; // mark voice as triggered, but no audio rendered yet  
         Delay           = itNoteOnEvent->FragmentPos();  
         itTriggerEvent  = itNoteOnEvent;  
         itKillEvent     = Pool<Event>::Iterator();  
         KeyGroup        = iKeyGroup;  
         pSample         = pDimRgn->pSample; // sample won't change until the voice is finished  
   
         // calculate volume  
         const double velocityAttenuation = pDimRgn->GetVelocityAttenuation(itNoteOnEvent->Param.Note.Velocity);  
   
         float volume = velocityAttenuation / 32768.0f; // we downscale by 32768 to convert from int16 value range to DSP value range (which is -1.0..1.0)  
   
         volume *= pDimRgn->SampleAttenuation;  
   
         // the volume of release triggered samples depends on note length  
         if (Type == type_release_trigger) {  
             float noteLength = float(pEngine->FrameTime + Delay -  
                                      pEngineChannel->pMIDIKeyInfo[MIDIKey].NoteOnTime) / pEngine->SampleRate;  
             float attenuation = 1 - 0.01053 * (256 >> pDimRgn->ReleaseTriggerDecay) * noteLength;  
             if (attenuation <= 0) return -1;  
             volume *= attenuation;  
         }  
79    
80          // select channel mode (mono or stereo)          si.HasLoops       = pRegion->SampleLoops;
81          SYNTHESIS_MODE_SET_CHANNELS(SynthesisMode, pSample->Channels == 2);          si.LoopStart      = (si.HasLoops) ? pRegion->pSampleLoops[0].LoopStart  : 0;
82            si.LoopLength     = (si.HasLoops) ? pRegion->pSampleLoops[0].LoopLength : 0;
83            si.LoopPlayCount  = pSample->LoopPlayCount;
84            si.Unpitched      = !pRegion->PitchTrack;
85    
86          // get starting crossfade volume level          return si;
87          float crossfadeVolume;      }
         switch (pDimRgn->AttenuationController.type) {  
             case ::gig::attenuation_ctrl_t::type_channelaftertouch:  
                 crossfadeVolume = 1.0f; //TODO: aftertouch not supported yet  
                 break;  
             case ::gig::attenuation_ctrl_t::type_velocity:  
                 crossfadeVolume = Engine::CrossfadeCurve[CrossfadeAttenuation(itNoteOnEvent->Param.Note.Velocity)];  
                 break;  
             case ::gig::attenuation_ctrl_t::type_controlchange: //FIXME: currently not sample accurate  
                 crossfadeVolume = Engine::CrossfadeCurve[CrossfadeAttenuation(pEngineChannel->ControllerTable[pDimRgn->AttenuationController.controller_number])];  
                 break;  
             case ::gig::attenuation_ctrl_t::type_none: // no crossfade defined  
             default:  
                 crossfadeVolume = 1.0f;  
         }  
88    
89          VolumeLeft  = volume * Engine::PanCurve[64 - pDimRgn->Pan];      Voice::RegionInfo Voice::GetRegionInfo() {
90          VolumeRight = volume * Engine::PanCurve[64 + pDimRgn->Pan];          RegionInfo ri;
91            ri.UnityNote = pRegion->UnityNote;
92            ri.FineTune  = pRegion->FineTune;
93            ri.Pan       = pRegion->Pan;
94            ri.SampleStartOffset = pRegion->SampleStartOffset;
95    
96          float subfragmentRate = pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE;          ri.EG2PreAttack        = pRegion->EG2PreAttack;
97          CrossfadeSmoother.trigger(crossfadeVolume, subfragmentRate);          ri.EG2Attack           = pRegion->EG2Attack;
98          VolumeSmoother.trigger(pEngineChannel->GlobalVolume, subfragmentRate);          ri.EG2Decay1           = pRegion->EG2Decay1;
99          PanLeftSmoother.trigger(pEngineChannel->GlobalPanLeft, subfragmentRate);          ri.EG2Decay2           = pRegion->EG2Decay2;
100          PanRightSmoother.trigger(pEngineChannel->GlobalPanRight, subfragmentRate);          ri.EG2Sustain          = pRegion->EG2Sustain;
101            ri.EG2InfiniteSustain  = pRegion->EG2InfiniteSustain;
102          finalSynthesisParameters.dPos = pDimRgn->SampleStartOffset; // offset where we should start playback of sample (0 - 2000 sample points)          ri.EG2Release          = pRegion->EG2Release;
         Pos = pDimRgn->SampleStartOffset;  
   
         // Check if the sample needs disk streaming or is too short for that  
         long cachedsamples = pSample->GetCache().Size / pSample->FrameSize;  
         DiskVoice          = cachedsamples < pSample->SamplesTotal;  
   
         if (DiskVoice) { // voice to be streamed from disk  
             MaxRAMPos = cachedsamples - (pEngine->MaxSamplesPerCycle << CONFIG_MAX_PITCH) / pSample->Channels; //TODO: this calculation is too pessimistic and may better be moved to Render() method, so it calculates MaxRAMPos dependent to the current demand of sample points to be rendered (e.g. in case of JACK)  
   
             // check if there's a loop defined which completely fits into the cached (RAM) part of the sample  
             RAMLoop = (pSample->Loops && pSample->LoopEnd <= MaxRAMPos);  
   
             if (pDiskThread->OrderNewStream(&DiskStreamRef, pSample, MaxRAMPos, !RAMLoop) < 0) {  
                 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;  
             RAMLoop = (pSample->Loops != 0);  
             dmsg(4,("RAM only voice launched (Looping: %s)\n", (RAMLoop) ? "yes" : "no"));  
         }  
         if (RAMLoop) {  
             loop.uiTotalCycles = pSample->LoopPlayCount;  
             loop.uiCyclesLeft  = pSample->LoopPlayCount;  
             loop.uiStart       = pSample->LoopStart;  
             loop.uiEnd         = pSample->LoopEnd;  
             loop.uiSize        = pSample->LoopSize;  
         }  
   
         // calculate initial pitch value  
         {  
             double pitchbasecents = pDimRgn->FineTune + (int) pEngine->ScaleTuning[MIDIKey % 12];  
             if (pDimRgn->PitchTrack) pitchbasecents += (MIDIKey - (int) pDimRgn->UnityNote) * 100;  
             this->PitchBase = RTMath::CentsToFreqRatio(pitchbasecents) * (double(pSample->SamplesPerSecond) / double(pEngine->SampleRate));  
             this->PitchBend = RTMath::CentsToFreqRatio(((double) PitchBend / 8192.0) * 200.0); // pitchbend wheel +-2 semitones = 200 cents  
         }  
   
         // the length of the decay and release curves are dependent on the velocity  
         const double velrelease = 1 / pDimRgn->GetVelocityRelease(itNoteOnEvent->Param.Note.Velocity);  
   
         // setup EG 1 (VCA EG)  
         {  
             // get current value of EG1 controller  
             double eg1controllervalue;  
             switch (pDimRgn->EG1Controller.type) {  
                 case ::gig::eg1_ctrl_t::type_none: // no controller defined  
                     eg1controllervalue = 0;  
                     break;  
                 case ::gig::eg1_ctrl_t::type_channelaftertouch:  
                     eg1controllervalue = 0; // TODO: aftertouch not yet supported  
                     break;  
                 case ::gig::eg1_ctrl_t::type_velocity:  
                     eg1controllervalue = itNoteOnEvent->Param.Note.Velocity;  
                     break;  
                 case ::gig::eg1_ctrl_t::type_controlchange: // MIDI control change controller  
                     eg1controllervalue = pEngineChannel->ControllerTable[pDimRgn->EG1Controller.controller_number];  
                     break;  
             }  
             if (pDimRgn->EG1ControllerInvert) eg1controllervalue = 127 - eg1controllervalue;  
103    
104              // calculate influence of EG1 controller on EG1's parameters          ri.EG3Attack     = pRegion->EG3Attack;
105              // (eg1attack is different from the others)          ri.EG3Depth      = pRegion->EG3Depth;
106              double eg1attack  = (pDimRgn->EG1ControllerAttackInfluence)  ?          ri.VCFEnabled    = pRegion->VCFEnabled;
107                  1 + 0.031 * (double) (pDimRgn->EG1ControllerAttackInfluence == 1 ?          ri.VCFType       = Filter::vcf_type_t(pRegion->VCFType);
108                                        1 : 1 << pDimRgn->EG1ControllerAttackInfluence) * eg1controllervalue : 1.0;          ri.VCFResonance  = pRegion->VCFResonance;
             double eg1decay   = (pDimRgn->EG1ControllerDecayInfluence)   ? 1 + 0.00775 * (double) (1 << pDimRgn->EG1ControllerDecayInfluence)   * eg1controllervalue : 1.0;  
             double eg1release = (pDimRgn->EG1ControllerReleaseInfluence) ? 1 + 0.00775 * (double) (1 << pDimRgn->EG1ControllerReleaseInfluence) * eg1controllervalue : 1.0;  
   
             EG1.trigger(pDimRgn->EG1PreAttack,  
                         pDimRgn->EG1Attack * eg1attack,  
                         pDimRgn->EG1Hold,  
                         pDimRgn->EG1Decay1 * eg1decay * velrelease,  
                         pDimRgn->EG1Decay2 * eg1decay * velrelease,  
                         pDimRgn->EG1InfiniteSustain,  
                         pDimRgn->EG1Sustain,  
                         pDimRgn->EG1Release * eg1release * velrelease,  
                         velocityAttenuation,  
                         pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);  
         }  
   
 #ifdef CONFIG_INTERPOLATE_VOLUME  
         // setup initial volume in synthesis parameters  
 #ifdef CONFIG_PROCESS_MUTED_CHANNELS  
         if (pEngineChannel->GetMute()) {  
             finalSynthesisParameters.fFinalVolumeLeft  = 0;  
             finalSynthesisParameters.fFinalVolumeRight = 0;  
         }  
         else  
 #else  
         {  
             float finalVolume = pEngineChannel->GlobalVolume * crossfadeVolume * EG1.getLevel();  
   
             finalSynthesisParameters.fFinalVolumeLeft  = finalVolume * VolumeLeft  * pEngineChannel->GlobalPanLeft;  
             finalSynthesisParameters.fFinalVolumeRight = finalVolume * VolumeRight * pEngineChannel->GlobalPanRight;  
         }  
 #endif  
 #endif  
   
         // setup EG 2 (VCF Cutoff EG)  
         {  
             // 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 = pEngineChannel->ControllerTable[pDimRgn->EG2Controller.controller_number];  
                     break;  
             }  
             if (pDimRgn->EG2ControllerInvert) eg2controllervalue = 127 - eg2controllervalue;  
109    
110              // calculate influence of EG2 controller on EG2's parameters          ri.ReleaseTriggerDecay = 0.01053 * (256 >> pRegion->ReleaseTriggerDecay);
             double eg2attack  = (pDimRgn->EG2ControllerAttackInfluence)  ? 1 + 0.00775 * (double) (1 << pDimRgn->EG2ControllerAttackInfluence)  * eg2controllervalue : 1.0;  
             double eg2decay   = (pDimRgn->EG2ControllerDecayInfluence)   ? 1 + 0.00775 * (double) (1 << pDimRgn->EG2ControllerDecayInfluence)   * eg2controllervalue : 1.0;  
             double eg2release = (pDimRgn->EG2ControllerReleaseInfluence) ? 1 + 0.00775 * (double) (1 << pDimRgn->EG2ControllerReleaseInfluence) * eg2controllervalue : 1.0;  
   
             EG2.trigger(pDimRgn->EG2PreAttack,  
                         pDimRgn->EG2Attack * eg2attack,  
                         false,  
                         pDimRgn->EG2Decay1 * eg2decay * velrelease,  
                         pDimRgn->EG2Decay2 * eg2decay * velrelease,  
                         pDimRgn->EG2InfiniteSustain,  
                         pDimRgn->EG2Sustain,  
                         pDimRgn->EG2Release * eg2release * velrelease,  
                         velocityAttenuation,  
                         pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);  
         }  
   
   
         // setup EG 3 (VCO EG)  
         {  
             // if portamento mode is on, we dedicate EG3 purely for portamento, otherwise if portamento is off we do as told by the patch  
             bool  bPortamento = pEngineChannel->PortamentoMode && pEngineChannel->PortamentoPos >= 0.0f;  
             float eg3depth = (bPortamento)  
                                  ? RTMath::CentsToFreqRatio((pEngineChannel->PortamentoPos - (float) MIDIKey) * 100)  
                                  : RTMath::CentsToFreqRatio(pDimRgn->EG3Depth);  
             float eg3time = (bPortamento)  
                                 ? pEngineChannel->PortamentoTime  
                                 : pDimRgn->EG3Attack;  
             EG3.trigger(eg3depth, eg3time, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);  
             dmsg(5,("PortamentoPos=%f, depth=%f, time=%f\n", pEngineChannel->PortamentoPos, eg3depth, eg3time));  
         }  
   
   
         // 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  
                     bLFO1Enabled         = (lfo1_internal_depth > 0);  
                     break;  
                 case ::gig::lfo1_ctrl_modwheel:  
                     lfo1_internal_depth  = 0;  
                     pLFO1->ExtController = 1; // MIDI controller 1  
                     bLFO1Enabled         = (pDimRgn->LFO1ControlDepth > 0);  
                     break;  
                 case ::gig::lfo1_ctrl_breath:  
                     lfo1_internal_depth  = 0;  
                     pLFO1->ExtController = 2; // MIDI controller 2  
                     bLFO1Enabled         = (pDimRgn->LFO1ControlDepth > 0);  
                     break;  
                 case ::gig::lfo1_ctrl_internal_modwheel:  
                     lfo1_internal_depth  = pDimRgn->LFO1InternalDepth;  
                     pLFO1->ExtController = 1; // MIDI controller 1  
                     bLFO1Enabled         = (lfo1_internal_depth > 0 || pDimRgn->LFO1ControlDepth > 0);  
                     break;  
                 case ::gig::lfo1_ctrl_internal_breath:  
                     lfo1_internal_depth  = pDimRgn->LFO1InternalDepth;  
                     pLFO1->ExtController = 2; // MIDI controller 2  
                     bLFO1Enabled         = (lfo1_internal_depth > 0 || pDimRgn->LFO1ControlDepth > 0);  
                     break;  
                 default:  
                     lfo1_internal_depth  = 0;  
                     pLFO1->ExtController = 0; // no external controller  
                     bLFO1Enabled         = false;  
             }  
             if (bLFO1Enabled) {  
                 pLFO1->trigger(pDimRgn->LFO1Frequency,  
                                start_level_max,  
                                lfo1_internal_depth,  
                                pDimRgn->LFO1ControlDepth,  
                                pDimRgn->LFO1FlipPhase,  
                                pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);  
                 pLFO1->update(pLFO1->ExtController ? pEngineChannel->ControllerTable[pLFO1->ExtController] : 0);  
             }  
         }  
111    
112            return ri;
113        }
114    
115          // setup LFO 2 (VCF Cutoff LFO)      Voice::InstrumentInfo Voice::GetInstrumentInfo() {
116          {          InstrumentInfo ii;
117              uint16_t lfo2_internal_depth;          ii.FineTune = GetGigEngineChannel()->pInstrument->FineTune;
118              switch (pDimRgn->LFO2Controller) {          ii.PitchbendRange = GetGigEngineChannel()->pInstrument->PitchbendRange;
                 case ::gig::lfo2_ctrl_internal:  
                     lfo2_internal_depth  = pDimRgn->LFO2InternalDepth;  
                     pLFO2->ExtController = 0; // no external controller  
                     bLFO2Enabled         = (lfo2_internal_depth > 0);  
                     break;  
                 case ::gig::lfo2_ctrl_modwheel:  
                     lfo2_internal_depth  = 0;  
                     pLFO2->ExtController = 1; // MIDI controller 1  
                     bLFO2Enabled         = (pDimRgn->LFO2ControlDepth > 0);  
                     break;  
                 case ::gig::lfo2_ctrl_foot:  
                     lfo2_internal_depth  = 0;  
                     pLFO2->ExtController = 4; // MIDI controller 4  
                     bLFO2Enabled         = (pDimRgn->LFO2ControlDepth > 0);  
                     break;  
                 case ::gig::lfo2_ctrl_internal_modwheel:  
                     lfo2_internal_depth  = pDimRgn->LFO2InternalDepth;  
                     pLFO2->ExtController = 1; // MIDI controller 1  
                     bLFO2Enabled         = (lfo2_internal_depth > 0 || pDimRgn->LFO2ControlDepth > 0);  
                     break;  
                 case ::gig::lfo2_ctrl_internal_foot:  
                     lfo2_internal_depth  = pDimRgn->LFO2InternalDepth;  
                     pLFO2->ExtController = 4; // MIDI controller 4  
                     bLFO2Enabled         = (lfo2_internal_depth > 0 || pDimRgn->LFO2ControlDepth > 0);  
                     break;  
                 default:  
                     lfo2_internal_depth  = 0;  
                     pLFO2->ExtController = 0; // no external controller  
                     bLFO2Enabled         = false;  
             }  
             if (bLFO2Enabled) {  
                 pLFO2->trigger(pDimRgn->LFO2Frequency,  
                                start_level_max,  
                                lfo2_internal_depth,  
                                pDimRgn->LFO2ControlDepth,  
                                pDimRgn->LFO2FlipPhase,  
                                pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);  
                 pLFO2->update(pLFO2->ExtController ? pEngineChannel->ControllerTable[pLFO2->ExtController] : 0);  
             }  
         }  
119    
120            return ii;
121        }
122    
123          // setup LFO 3 (VCO LFO)      double Voice::GetSampleAttenuation() {
124          {          return pRegion->SampleAttenuation;
125              uint16_t lfo3_internal_depth;      }
             switch (pDimRgn->LFO3Controller) {  
                 case ::gig::lfo3_ctrl_internal:  
                     lfo3_internal_depth  = pDimRgn->LFO3InternalDepth;  
                     pLFO3->ExtController = 0; // no external controller  
                     bLFO3Enabled         = (lfo3_internal_depth > 0);  
                     break;  
                 case ::gig::lfo3_ctrl_modwheel:  
                     lfo3_internal_depth  = 0;  
                     pLFO3->ExtController = 1; // MIDI controller 1  
                     bLFO3Enabled         = (pDimRgn->LFO3ControlDepth > 0);  
                     break;  
                 case ::gig::lfo3_ctrl_aftertouch:  
                     lfo3_internal_depth  = 0;  
                     pLFO3->ExtController = 0; // TODO: aftertouch not implemented yet  
                     bLFO3Enabled         = false; // see TODO comment in line above  
                     break;  
                 case ::gig::lfo3_ctrl_internal_modwheel:  
                     lfo3_internal_depth  = pDimRgn->LFO3InternalDepth;  
                     pLFO3->ExtController = 1; // MIDI controller 1  
                     bLFO3Enabled         = (lfo3_internal_depth > 0 || pDimRgn->LFO3ControlDepth > 0);  
                     break;  
                 case ::gig::lfo3_ctrl_internal_aftertouch:  
                     lfo3_internal_depth  = pDimRgn->LFO3InternalDepth;  
                     pLFO1->ExtController = 0; // TODO: aftertouch not implemented yet  
                     bLFO3Enabled         = (lfo3_internal_depth > 0 /*|| pDimRgn->LFO3ControlDepth > 0*/); // see TODO comment in line above  
                     break;  
                 default:  
                     lfo3_internal_depth  = 0;  
                     pLFO3->ExtController = 0; // no external controller  
                     bLFO3Enabled         = false;  
             }  
             if (bLFO3Enabled) {  
                 pLFO3->trigger(pDimRgn->LFO3Frequency,  
                                start_level_mid,  
                                lfo3_internal_depth,  
                                pDimRgn->LFO3ControlDepth,  
                                false,  
                                pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);  
                 pLFO3->update(pLFO3->ExtController ? pEngineChannel->ControllerTable[pLFO3->ExtController] : 0);  
             }  
         }  
126    
127        double Voice::GetVelocityAttenuation(uint8_t MIDIKeyVelocity) {
128            return pRegion->GetVelocityAttenuation(MIDIKeyVelocity);
129        }
130    
131          #if CONFIG_FORCE_FILTER      double Voice::GetVelocityRelease(uint8_t MIDIKeyVelocity) {
132          const bool bUseFilter = true;          return pRegion->GetVelocityRelease(MIDIKeyVelocity);
133          #else // use filter only if instrument file told so      }
         const bool bUseFilter = pDimRgn->VCFEnabled;  
         #endif // CONFIG_FORCE_FILTER  
         SYNTHESIS_MODE_SET_FILTER(SynthesisMode, bUseFilter);  
         if (bUseFilter) {  
             #ifdef CONFIG_OVERRIDE_CUTOFF_CTRL  
             VCFCutoffCtrl.controller = CONFIG_OVERRIDE_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 // CONFIG_OVERRIDE_CUTOFF_CTRL  
134    
135              #ifdef CONFIG_OVERRIDE_RESONANCE_CTRL      void Voice::ProcessCCEvent(RTList<Event>::Iterator& itEvent) {
136              VCFResonanceCtrl.controller = CONFIG_OVERRIDE_RESONANCE_CTRL;          if (itEvent->Type == Event::type_control_change && itEvent->Param.CC.Controller) { // if (valid) MIDI control change event
137              #else // use the one defined in the instrument file              if (pRegion->AttenuationController.type == ::gig::attenuation_ctrl_t::type_controlchange &&
138              switch (pDimRgn->VCFResonanceController) {                  itEvent->Param.CC.Controller == pRegion->AttenuationController.controller_number) {
139                  case ::gig::vcf_res_ctrl_genpurpose3:                  CrossfadeSmoother.update(AbstractEngine::CrossfadeCurve[CrossfadeAttenuation(itEvent->Param.CC.Value)]);
                     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;  
140              }              }
141              #endif // CONFIG_OVERRIDE_RESONANCE_CTRL          }
142        }
143    
144              #ifndef CONFIG_OVERRIDE_FILTER_TYPE      void Voice::ProcessChannelPressureEvent(RTList<Event>::Iterator& itEvent) {
145              finalSynthesisParameters.filterLeft.SetType(pDimRgn->VCFType);          if (itEvent->Type == Event::type_channel_pressure) { // if (valid) MIDI channel pressure (aftertouch) event
146              finalSynthesisParameters.filterRight.SetType(pDimRgn->VCFType);              if (pRegion->AttenuationController.type == ::gig::attenuation_ctrl_t::type_channelaftertouch) {
147              #else // override filter type                  CrossfadeSmoother.update(AbstractEngine::CrossfadeCurve[CrossfadeAttenuation(itEvent->Param.ChannelPressure.Value)]);
             FilterLeft.SetType(CONFIG_OVERRIDE_FILTER_TYPE);  
             FilterRight.SetType(CONFIG_OVERRIDE_FILTER_TYPE);  
             #endif // CONFIG_OVERRIDE_FILTER_TYPE  
   
             VCFCutoffCtrl.value    = pEngineChannel->ControllerTable[VCFCutoffCtrl.controller];  
             VCFResonanceCtrl.value = pEngineChannel->ControllerTable[VCFResonanceCtrl.controller];  
   
             // calculate cutoff frequency  
             float cutoff = pDimRgn->GetVelocityCutoff(itNoteOnEvent->Param.Note.Velocity);  
             if (pDimRgn->VCFKeyboardTracking) {  
                 cutoff *= exp((itNoteOnEvent->Param.Note.Key - pDimRgn->VCFKeyboardTrackingBreakpoint) * 0.057762265f); // (ln(2) / 12)  
148              }              }
149              CutoffBase = cutoff;          }
150        }
151    
152              int cvalue;      void Voice::ProcessPolyphonicKeyPressureEvent(RTList<Event>::Iterator& itEvent) {
153              if (VCFCutoffCtrl.controller) {          // Not used so far
154                  cvalue = pEngineChannel->ControllerTable[VCFCutoffCtrl.controller];      }
                 if (pDimRgn->VCFCutoffControllerInvert) cvalue = 127 - cvalue;  
                 // VCFVelocityScale in this case means Minimum cutoff  
                 if (cvalue < pDimRgn->VCFVelocityScale) cvalue = pDimRgn->VCFVelocityScale;  
             }  
             else {  
                 cvalue = pDimRgn->VCFCutoff;  
             }  
             cutoff *= float(cvalue) * 0.00787402f; // (1 / 127)  
             if (cutoff > 1.0) cutoff = 1.0;  
             cutoff = (cutoff < 0.5 ? cutoff * 4826 - 1 : cutoff * 5715 - 449);  
             if (cutoff < 1.0) cutoff = 1.0;  
155    
156              // calculate resonance      void Voice::ProcessCutoffEvent(RTList<Event>::Iterator& itEvent) {
157              float resonance = (float) (VCFResonanceCtrl.controller ? VCFResonanceCtrl.value : pDimRgn->VCFResonance) * 0.00787f; // 0.0..1.0          int ccvalue = itEvent->Param.CC.Value;
158            if (VCFCutoffCtrl.value == ccvalue) return;
159            VCFCutoffCtrl.value = ccvalue;
160            if (pRegion->VCFCutoffControllerInvert)  ccvalue = 127 - ccvalue;
161            if (ccvalue < pRegion->VCFVelocityScale) ccvalue = pRegion->VCFVelocityScale;
162            float cutoff = CutoffBase * float(ccvalue);
163            if (cutoff > 127.0f) cutoff = 127.0f;
164    
165              VCFCutoffCtrl.fvalue    = cutoff - 1.0;          VCFCutoffCtrl.fvalue = cutoff; // needed for initialization of fFinalCutoff next time
166              VCFResonanceCtrl.fvalue = resonance;          fFinalCutoff = cutoff;
167          }      }
168          else {  
169              VCFCutoffCtrl.controller    = 0;      double Voice::CalculateCrossfadeVolume(uint8_t MIDIKeyVelocity) {
170              VCFResonanceCtrl.controller = 0;          float crossfadeVolume;
171            switch (pRegion->AttenuationController.type) {
172                case ::gig::attenuation_ctrl_t::type_channelaftertouch:
173                    crossfadeVolume = Engine::CrossfadeCurve[CrossfadeAttenuation(GetGigEngineChannel()->ControllerTable[128])];
174                    break;
175                case ::gig::attenuation_ctrl_t::type_velocity:
176                    crossfadeVolume = Engine::CrossfadeCurve[CrossfadeAttenuation(MIDIKeyVelocity)];
177                    break;
178                case ::gig::attenuation_ctrl_t::type_controlchange: //FIXME: currently not sample accurate
179                    crossfadeVolume = Engine::CrossfadeCurve[CrossfadeAttenuation(GetGigEngineChannel()->ControllerTable[pRegion->AttenuationController.controller_number])];
180                    break;
181                case ::gig::attenuation_ctrl_t::type_none: // no crossfade defined
182                default:
183                    crossfadeVolume = 1.0f;
184          }          }
185    
186          return 0; // success          return crossfadeVolume;
187      }      }
188    
189      /**      double Voice::GetEG1ControllerValue(uint8_t MIDIKeyVelocity) {
190       *  Renders the audio data for this voice for the current audio fragment.          double eg1controllervalue = 0;
191       *  The sample input data can either come from RAM (cached sample or sample          switch (pRegion->EG1Controller.type) {
192       *  part) or directly from disk. The output signal will be rendered by              case ::gig::eg1_ctrl_t::type_none: // no controller defined
193       *  resampling / interpolation. If this voice is a disk streaming voice and                  eg1controllervalue = 0;
194       *  the voice completely played back the cached RAM part of the sample, it                  break;
195       *  will automatically switch to disk playback for the next RenderAudio()              case ::gig::eg1_ctrl_t::type_channelaftertouch:
196       *  call.                  eg1controllervalue = GetGigEngineChannel()->ControllerTable[128];
197       *                  break;
198       *  @param Samples - number of samples to be rendered in this audio fragment cycle              case ::gig::eg1_ctrl_t::type_velocity:
199       */                  eg1controllervalue = MIDIKeyVelocity;
200      void Voice::Render(uint Samples) {                  break;
201                case ::gig::eg1_ctrl_t::type_controlchange: // MIDI control change controller
202          // select default values for synthesis mode bits                  eg1controllervalue = GetGigEngineChannel()->ControllerTable[pRegion->EG1Controller.controller_number];
203          SYNTHESIS_MODE_SET_LOOP(SynthesisMode, false);                  break;
   
         switch (this->PlaybackState) {  
   
             case playback_state_init:  
                 this->PlaybackState = playback_state_ram; // we always start playback from RAM cache and switch then to disk if needed  
                 // no break - continue with playback_state_ram  
   
             case playback_state_ram: {  
                     if (RAMLoop) SYNTHESIS_MODE_SET_LOOP(SynthesisMode, true); // enable looping  
   
                     // render current fragment  
                     Synthesize(Samples, (sample_t*) pSample->GetCache().pStart, Delay);  
   
                     if (DiskVoice) {  
                         // check if we reached the allowed limit of the sample RAM cache  
                         if (finalSynthesisParameters.dPos > MaxRAMPos) {  
                             dmsg(5,("Voice: switching to disk playback (Pos=%f)\n", finalSynthesisParameters.dPos));  
                             this->PlaybackState = playback_state_disk;  
                         }  
                     } else if (finalSynthesisParameters.dPos >= 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(finalSynthesisParameters.dPos) - MaxRAMPos));  
                         finalSynthesisParameters.dPos -= int(finalSynthesisParameters.dPos);  
                         RealSampleWordsLeftToRead = -1; // -1 means no silence has been added yet  
                     }  
   
                     const int sampleWordsLeftToRead = DiskStreamRef.pStream->GetReadSpace();  
   
                     // add silence sample at the end if we reached the end of the stream (for the interpolator)  
                     if (DiskStreamRef.State == Stream::state_end) {  
                         const int maxSampleWordsPerCycle = (pEngine->MaxSamplesPerCycle << CONFIG_MAX_PITCH) * pSample->Channels + 6; // +6 for the interpolator algorithm  
                         if (sampleWordsLeftToRead <= maxSampleWordsPerCycle) {  
                             // remember how many sample words there are before any silence has been added  
                             if (RealSampleWordsLeftToRead < 0) RealSampleWordsLeftToRead = sampleWordsLeftToRead;  
                             DiskStreamRef.pStream->WriteSilence(maxSampleWordsPerCycle - sampleWordsLeftToRead);  
                         }  
                     }  
   
                     sample_t* ptr = DiskStreamRef.pStream->GetReadPtr(); // get the current read_ptr within the ringbuffer where we read the samples from  
   
                     // render current audio fragment  
                     Synthesize(Samples, ptr, Delay);  
   
                     const int iPos = (int) finalSynthesisParameters.dPos;  
                     const int readSampleWords = iPos * pSample->Channels; // amount of sample words actually been read  
                     DiskStreamRef.pStream->IncrementReadPos(readSampleWords);  
                     finalSynthesisParameters.dPos -= iPos; // just keep fractional part of playback position  
   
                     // change state of voice to 'end' if we really reached the end of the sample data  
                     if (RealSampleWordsLeftToRead >= 0) {  
                         RealSampleWordsLeftToRead -= readSampleWords;  
                         if (RealSampleWordsLeftToRead <= 0) this->PlaybackState = playback_state_end;  
                     }  
                 }  
                 break;  
   
             case playback_state_end:  
                 std::cerr << "gig::Voice::Render(): entered with playback_state_end, this is a bug!\n" << std::flush;  
                 break;  
         }  
   
         // Reset delay  
         Delay = 0;  
   
         itTriggerEvent = Pool<Event>::Iterator();  
   
         // If sample stream or release stage finished, kill the voice  
         if (PlaybackState == playback_state_end || EG1.getSegmentType() == EGADSR::segment_end) KillImmediately();  
     }  
   
     /**  
      *  Resets voice variables. Should only be called if rendering process is  
      *  suspended / not running.  
      */  
     void Voice::Reset() {  
         finalSynthesisParameters.filterLeft.Reset();  
         finalSynthesisParameters.filterRight.Reset();  
         DiskStreamRef.pStream = NULL;  
         DiskStreamRef.hStream = 0;  
         DiskStreamRef.State   = Stream::state_unused;  
         DiskStreamRef.OrderID = 0;  
         PlaybackState = playback_state_end;  
         itTriggerEvent = Pool<Event>::Iterator();  
         itKillEvent    = Pool<Event>::Iterator();  
     }  
   
     /**  
      * Process given list of MIDI note on, note off and sustain pedal events  
      * for the given time.  
      *  
      * @param itEvent - iterator pointing to the next event to be processed  
      * @param End     - youngest time stamp where processing should be stopped  
      */  
     void Voice::processTransitionEvents(RTList<Event>::Iterator& itEvent, uint End) {  
         for (; itEvent && itEvent->FragmentPos() <= End; ++itEvent) {  
             if (itEvent->Type == Event::type_release) {  
                 EG1.update(EGADSR::event_release, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);  
                 EG2.update(EGADSR::event_release, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);  
             } else if (itEvent->Type == Event::type_cancel_release) {  
                 EG1.update(EGADSR::event_cancel_release, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);  
                 EG2.update(EGADSR::event_cancel_release, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);  
             }  
204          }          }
205            if (pRegion->EG1ControllerInvert) eg1controllervalue = 127 - eg1controllervalue;
206    
207            return eg1controllervalue;
208      }      }
209    
210      /**      Voice::EGInfo Voice::CalculateEG1ControllerInfluence(double eg1ControllerValue) {
211       * Process given list of MIDI control change and pitch bend events for          EGInfo eg;
212       * the given time.          // (eg1attack is different from the others)
213       *          if (pRegion->EG1Attack < 1e-8 && // attack in gig == 0
214       * @param itEvent - iterator pointing to the next event to be processed              (pRegion->EG1ControllerAttackInfluence == 0 ||
215       * @param End     - youngest time stamp where processing should be stopped               eg1ControllerValue <= 10)) { // strange GSt special case
216       */              eg.Attack = 0; // this will force the attack to be 0 in the call to EG1.trigger
217      void Voice::processCCEvents(RTList<Event>::Iterator& itEvent, uint End) {          } else {
218          for (; itEvent && itEvent->FragmentPos() <= End; ++itEvent) {              eg.Attack  = (pRegion->EG1ControllerAttackInfluence)  ?
219              if (itEvent->Type == Event::type_control_change &&                  1 + 0.031 * (double) (pRegion->EG1ControllerAttackInfluence == 1 ?
220                  itEvent->Param.CC.Controller) { // if (valid) MIDI control change event                                        1 : 1 << pRegion->EG1ControllerAttackInfluence) * eg1ControllerValue : 1.0;
221                  if (itEvent->Param.CC.Controller == VCFCutoffCtrl.controller) {          }
222                      processCutoffEvent(itEvent);          eg.Decay   = (pRegion->EG1ControllerDecayInfluence)   ? 1 + 0.00775 * (double) (1 << pRegion->EG1ControllerDecayInfluence)   * eg1ControllerValue : 1.0;
223                  }          eg.Release = (pRegion->EG1ControllerReleaseInfluence) ? 1 + 0.00775 * (double) (1 << pRegion->EG1ControllerReleaseInfluence) * eg1ControllerValue : 1.0;
224                  if (itEvent->Param.CC.Controller == VCFResonanceCtrl.controller) {  
225                      processResonanceEvent(itEvent);          return eg;
226                  }      }
227                  if (itEvent->Param.CC.Controller == pLFO1->ExtController) {  
228                      pLFO1->update(itEvent->Param.CC.Value);      double Voice::GetEG2ControllerValue(uint8_t MIDIKeyVelocity) {
229                  }          double eg2controllervalue = 0;
230                  if (itEvent->Param.CC.Controller == pLFO2->ExtController) {          switch (pRegion->EG2Controller.type) {
231                      pLFO2->update(itEvent->Param.CC.Value);              case ::gig::eg2_ctrl_t::type_none: // no controller defined
232                  }                  eg2controllervalue = 0;
233                  if (itEvent->Param.CC.Controller == pLFO3->ExtController) {                  break;
234                      pLFO3->update(itEvent->Param.CC.Value);              case ::gig::eg2_ctrl_t::type_channelaftertouch:
235                  }                  eg2controllervalue = GetGigEngineChannel()->ControllerTable[128];
236                  if (pDimRgn->AttenuationController.type == ::gig::attenuation_ctrl_t::type_controlchange &&                  break;
237                      itEvent->Param.CC.Controller == pDimRgn->AttenuationController.controller_number) {              case ::gig::eg2_ctrl_t::type_velocity:
238                      CrossfadeSmoother.update(Engine::CrossfadeCurve[CrossfadeAttenuation(itEvent->Param.CC.Value)]);                  eg2controllervalue = MIDIKeyVelocity;
239                  }                  break;
240                  if (itEvent->Param.CC.Controller == 7) { // volume              case ::gig::eg2_ctrl_t::type_controlchange: // MIDI control change controller
241                      VolumeSmoother.update(Engine::VolumeCurve[itEvent->Param.CC.Value] * CONFIG_GLOBAL_ATTENUATION);                  eg2controllervalue = GetGigEngineChannel()->ControllerTable[pRegion->EG2Controller.controller_number];
242                  } else if (itEvent->Param.CC.Controller == 10) { // panpot                  break;
                     PanLeftSmoother.update(Engine::PanCurve[128 - itEvent->Param.CC.Value]);  
                     PanRightSmoother.update(Engine::PanCurve[itEvent->Param.CC.Value]);  
                 }  
             } else if (itEvent->Type == Event::type_pitchbend) { // if pitch bend event  
                 processPitchEvent(itEvent);  
             }  
243          }          }
244      }          if (pRegion->EG2ControllerInvert) eg2controllervalue = 127 - eg2controllervalue;
245    
246      void Voice::processPitchEvent(RTList<Event>::Iterator& itEvent) {          return eg2controllervalue;
         const float pitch = RTMath::CentsToFreqRatio(((double) itEvent->Param.Pitch.Pitch / 8192.0) * 200.0); // +-two semitones = +-200 cents  
         finalSynthesisParameters.fFinalPitch *= pitch;  
         PitchBend = pitch;  
247      }      }
248    
249      void Voice::processCutoffEvent(RTList<Event>::Iterator& itEvent) {      Voice::EGInfo Voice::CalculateEG2ControllerInfluence(double eg2ControllerValue) {
250          int ccvalue = itEvent->Param.CC.Value;          EGInfo eg;
251          if (VCFCutoffCtrl.value == ccvalue) return;          eg.Attack  = (pRegion->EG2ControllerAttackInfluence)  ? 1 + 0.00775 * (double) (1 << pRegion->EG2ControllerAttackInfluence)  * eg2ControllerValue : 1.0;
252          VCFCutoffCtrl.value == ccvalue;          eg.Decay   = (pRegion->EG2ControllerDecayInfluence)   ? 1 + 0.00775 * (double) (1 << pRegion->EG2ControllerDecayInfluence)   * eg2ControllerValue : 1.0;
253          if (pDimRgn->VCFCutoffControllerInvert)  ccvalue = 127 - ccvalue;          eg.Release = (pRegion->EG2ControllerReleaseInfluence) ? 1 + 0.00775 * (double) (1 << pRegion->EG2ControllerReleaseInfluence) * eg2ControllerValue : 1.0;
         if (ccvalue < pDimRgn->VCFVelocityScale) ccvalue = pDimRgn->VCFVelocityScale;  
         float cutoff = CutoffBase * float(ccvalue) * 0.00787402f; // (1 / 127)  
         if (cutoff > 1.0) cutoff = 1.0;  
         cutoff = (cutoff < 0.5 ? cutoff * 4826 - 1 : cutoff * 5715 - 449);  
         if (cutoff < 1.0) cutoff = 1.0;  
254    
255          VCFCutoffCtrl.fvalue = cutoff - 1.0; // needed for initialization of fFinalCutoff next time          return eg;
         fFinalCutoff = cutoff;  
256      }      }
257    
258      void Voice::processResonanceEvent(RTList<Event>::Iterator& itEvent) {      void Voice::InitLFO1() {
259          // convert absolute controller value to differential          uint16_t lfo1_internal_depth;
260          const int ctrldelta = itEvent->Param.CC.Value - VCFResonanceCtrl.value;          switch (pRegion->LFO1Controller) {
261          VCFResonanceCtrl.value = itEvent->Param.CC.Value;              case ::gig::lfo1_ctrl_internal:
262          const float resonancedelta = (float) ctrldelta * 0.00787f; // 0.0..1.0                  lfo1_internal_depth  = pRegion->LFO1InternalDepth;
263          fFinalResonance += resonancedelta;                  pLFO1->ExtController = 0; // no external controller
264          // needed for initialization of parameter                  bLFO1Enabled         = (lfo1_internal_depth > 0);
265          VCFResonanceCtrl.fvalue = itEvent->Param.CC.Value * 0.00787f;                  break;
266      }              case ::gig::lfo1_ctrl_modwheel:
267                    lfo1_internal_depth  = 0;
268      /**                  pLFO1->ExtController = 1; // MIDI controller 1
269       *  Synthesizes the current audio fragment for this voice.                  bLFO1Enabled         = (pRegion->LFO1ControlDepth > 0);
270       *                  break;
271       *  @param Samples - number of sample points to be rendered in this audio              case ::gig::lfo1_ctrl_breath:
272       *                   fragment cycle                  lfo1_internal_depth  = 0;
273       *  @param pSrc    - pointer to input sample data                  pLFO1->ExtController = 2; // MIDI controller 2
274       *  @param Skip    - number of sample points to skip in output buffer                  bLFO1Enabled         = (pRegion->LFO1ControlDepth > 0);
275       */                  break;
276      void Voice::Synthesize(uint Samples, sample_t* pSrc, uint Skip) {              case ::gig::lfo1_ctrl_internal_modwheel:
277          finalSynthesisParameters.pOutLeft  = &pEngineChannel->pOutputLeft[Skip];                  lfo1_internal_depth  = pRegion->LFO1InternalDepth;
278          finalSynthesisParameters.pOutRight = &pEngineChannel->pOutputRight[Skip];                  pLFO1->ExtController = 1; // MIDI controller 1
279          finalSynthesisParameters.pSrc      = pSrc;                  bLFO1Enabled         = (lfo1_internal_depth > 0 || pRegion->LFO1ControlDepth > 0);
280                    break;
281          RTList<Event>::Iterator itCCEvent = pEngineChannel->pEvents->first();              case ::gig::lfo1_ctrl_internal_breath:
282          RTList<Event>::Iterator itNoteEvent = pEngineChannel->pMIDIKeyInfo[MIDIKey].pEvents->first();                  lfo1_internal_depth  = pRegion->LFO1InternalDepth;
283                    pLFO1->ExtController = 2; // MIDI controller 2
284          if (Skip) { // skip events that happened before this voice was triggered                  bLFO1Enabled         = (lfo1_internal_depth > 0 || pRegion->LFO1ControlDepth > 0);
285              while (itCCEvent && itCCEvent->FragmentPos() <= Skip) ++itCCEvent;                  break;
286              while (itNoteEvent && itNoteEvent->FragmentPos() <= Skip) ++itNoteEvent;              default:
287          }                  lfo1_internal_depth  = 0;
288                    pLFO1->ExtController = 0; // no external controller
289          uint killPos;                  bLFO1Enabled         = false;
290          if (itKillEvent) killPos = RTMath::Min(itKillEvent->FragmentPos(), pEngine->MaxFadeOutPos);          }
291            if (bLFO1Enabled) {
292          uint i = Skip;              pLFO1->trigger(fromGigLfoWave(pRegion->LFO1WaveForm),
293          while (i < Samples) {                             pRegion->LFO1Frequency,
294              int iSubFragmentEnd = RTMath::Min(i + CONFIG_DEFAULT_SUBFRAGMENT_SIZE, Samples);                             pRegion->LFO1Phase,
295                               LFO::start_level_mid, // see https://sourceforge.net/p/linuxsampler/mailman/linuxsampler-devel/thread/2189307.cNP0Xbctxq%40silver/#msg36774029
296              // initialize all final synthesis parameters                             lfo1_internal_depth,
297              finalSynthesisParameters.fFinalPitch = PitchBase * PitchBend;                             pRegion->LFO1ControlDepth,
298              fFinalCutoff    = VCFCutoffCtrl.fvalue;                             pRegion->LFO1FlipPhase,
299              fFinalResonance = VCFResonanceCtrl.fvalue;                             pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
300                pLFO1->updateByMIDICtrlValue(pLFO1->ExtController ? GetGigEngineChannel()->ControllerTable[pLFO1->ExtController] : 0);
301              // process MIDI control change and pitchbend events for this subfragment              pLFO1->setScriptDepthFactor(
302              processCCEvents(itCCEvent, iSubFragmentEnd);                  pNote->Override.AmpLFODepth.Value,
303                    pNote->Override.AmpLFODepth.Final
304              float fFinalVolume = VolumeSmoother.render() * CrossfadeSmoother.render();              );
305  #ifdef CONFIG_PROCESS_MUTED_CHANNELS              if (pNote->Override.AmpLFOFreq.isFinal())
306              if (pEngineChannel->GetMute()) fFinalVolume = 0;                  pLFO1->setScriptFrequencyFinal(
307  #endif                      pNote->Override.AmpLFOFreq.Value, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE
308                    );
309              // process transition events (note on, note off & sustain pedal)              else
310              processTransitionEvents(itNoteEvent, iSubFragmentEnd);                  pLFO1->setScriptFrequencyFactor(
311                        pNote->Override.AmpLFOFreq.Value, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE
312              // if the voice was killed in this subfragment switch EG1 to fade out stage                  );
313              if (itKillEvent && killPos <= iSubFragmentEnd) {          }
314                  EG1.enterFadeOutStage();      }
                 itKillEvent = Pool<Event>::Iterator();  
             }  
   
             // process envelope generators  
             switch (EG1.getSegmentType()) {  
                 case EGADSR::segment_lin:  
                     fFinalVolume *= EG1.processLin();  
                     break;  
                 case EGADSR::segment_exp:  
                     fFinalVolume *= EG1.processExp();  
                     break;  
                 case EGADSR::segment_end:  
                     fFinalVolume *= EG1.getLevel();  
                     break; // noop  
             }  
             switch (EG2.getSegmentType()) {  
                 case EGADSR::segment_lin:  
                     fFinalCutoff *= EG2.processLin();  
                     break;  
                 case EGADSR::segment_exp:  
                     fFinalCutoff *= EG2.processExp();  
                     break;  
                 case EGADSR::segment_end:  
                     fFinalCutoff *= EG2.getLevel();  
                     break; // noop  
             }  
             if (EG3.active()) finalSynthesisParameters.fFinalPitch *= EG3.render();  
315    
316              // process low frequency oscillators      void Voice::InitLFO2() {
317              if (bLFO1Enabled) fFinalVolume *= pLFO1->render();          uint16_t lfo2_internal_depth;
318              if (bLFO2Enabled) fFinalCutoff *= pLFO2->render();          switch (pRegion->LFO2Controller) {
319              if (bLFO3Enabled) finalSynthesisParameters.fFinalPitch *= RTMath::CentsToFreqRatio(pLFO3->render());              case ::gig::lfo2_ctrl_internal:
320                    lfo2_internal_depth  = pRegion->LFO2InternalDepth;
321              // if filter enabled then update filter coefficients                  pLFO2->ExtController = 0; // no external controller
322              if (SYNTHESIS_MODE_GET_FILTER(SynthesisMode)) {                  bLFO2Enabled         = (lfo2_internal_depth > 0);
323                  finalSynthesisParameters.filterLeft.SetParameters(fFinalCutoff + 1.0, fFinalResonance, pEngine->SampleRate);                  break;
324                  finalSynthesisParameters.filterRight.SetParameters(fFinalCutoff + 1.0, fFinalResonance, pEngine->SampleRate);              case ::gig::lfo2_ctrl_modwheel:
325              }                  lfo2_internal_depth  = 0;
326                    pLFO2->ExtController = 1; // MIDI controller 1
327                    bLFO2Enabled         = (pRegion->LFO2ControlDepth > 0);
328                    break;
329                case ::gig::lfo2_ctrl_foot:
330                    lfo2_internal_depth  = 0;
331                    pLFO2->ExtController = 4; // MIDI controller 4
332                    bLFO2Enabled         = (pRegion->LFO2ControlDepth > 0);
333                    break;
334                case ::gig::lfo2_ctrl_internal_modwheel:
335                    lfo2_internal_depth  = pRegion->LFO2InternalDepth;
336                    pLFO2->ExtController = 1; // MIDI controller 1
337                    bLFO2Enabled         = (lfo2_internal_depth > 0 || pRegion->LFO2ControlDepth > 0);
338                    break;
339                case ::gig::lfo2_ctrl_internal_foot:
340                    lfo2_internal_depth  = pRegion->LFO2InternalDepth;
341                    pLFO2->ExtController = 4; // MIDI controller 4
342                    bLFO2Enabled         = (lfo2_internal_depth > 0 || pRegion->LFO2ControlDepth > 0);
343                    break;
344                default:
345                    lfo2_internal_depth  = 0;
346                    pLFO2->ExtController = 0; // no external controller
347                    bLFO2Enabled         = false;
348            }
349            if (bLFO2Enabled) {
350                pLFO2->trigger(fromGigLfoWave(pRegion->LFO2WaveForm),
351                               pRegion->LFO2Frequency,
352                               pRegion->LFO2Phase,
353                               LFO::start_level_mid, // see https://sourceforge.net/p/linuxsampler/mailman/linuxsampler-devel/thread/2189307.cNP0Xbctxq%40silver/#msg36774029
354                               lfo2_internal_depth,
355                               pRegion->LFO2ControlDepth,
356                               pRegion->LFO2FlipPhase,
357                               pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
358                pLFO2->updateByMIDICtrlValue(pLFO2->ExtController ? GetGigEngineChannel()->ControllerTable[pLFO2->ExtController] : 0);
359                pLFO2->setScriptDepthFactor(
360                    pNote->Override.CutoffLFODepth.Value,
361                    pNote->Override.CutoffLFODepth.Final
362                );
363                if (pNote->Override.CutoffLFOFreq.isFinal())
364                    pLFO2->setScriptFrequencyFinal(pNote->Override.CutoffLFOFreq.Value, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
365                else
366                    pLFO2->setScriptFrequencyFactor(pNote->Override.CutoffLFOFreq.Value, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
367            }
368        }
369    
370              // do we need resampling?      void Voice::InitLFO3() {
371              const float __PLUS_ONE_CENT  = 1.000577789506554859250142541782224725466f;          uint16_t lfo3_internal_depth;
372              const float __MINUS_ONE_CENT = 0.9994225441413807496009516495583113737666f;          switch (pRegion->LFO3Controller) {
373              const bool bResamplingRequired = !(finalSynthesisParameters.fFinalPitch <= __PLUS_ONE_CENT &&              case ::gig::lfo3_ctrl_internal:
374                                                 finalSynthesisParameters.fFinalPitch >= __MINUS_ONE_CENT);                  lfo3_internal_depth  = pRegion->LFO3InternalDepth;
375              SYNTHESIS_MODE_SET_INTERPOLATE(SynthesisMode, bResamplingRequired);                  pLFO3->ExtController = 0; // no external controller
376                    bLFO3Enabled         = (lfo3_internal_depth > 0);
377              // prepare final synthesis parameters structure                  break;
378              finalSynthesisParameters.uiToGo            = iSubFragmentEnd - i;              case ::gig::lfo3_ctrl_modwheel:
379  #ifdef CONFIG_INTERPOLATE_VOLUME                  lfo3_internal_depth  = 0;
380              finalSynthesisParameters.fFinalVolumeDeltaLeft  =                  pLFO3->ExtController = 1; // MIDI controller 1
381                  (fFinalVolume * VolumeLeft  * PanLeftSmoother.render() -                  bLFO3Enabled         = (pRegion->LFO3ControlDepth > 0);
382                   finalSynthesisParameters.fFinalVolumeLeft) / finalSynthesisParameters.uiToGo;                  break;
383              finalSynthesisParameters.fFinalVolumeDeltaRight =              case ::gig::lfo3_ctrl_aftertouch:
384                  (fFinalVolume * VolumeRight * PanRightSmoother.render() -                  lfo3_internal_depth  = 0;
385                   finalSynthesisParameters.fFinalVolumeRight) / finalSynthesisParameters.uiToGo;                  pLFO3->ExtController = CTRL_TABLE_IDX_AFTERTOUCH;
386  #else                  bLFO3Enabled         = true;
387              finalSynthesisParameters.fFinalVolumeLeft  =                  break;
388                  fFinalVolume * VolumeLeft  * PanLeftSmoother.render();              case ::gig::lfo3_ctrl_internal_modwheel:
389              finalSynthesisParameters.fFinalVolumeRight =                  lfo3_internal_depth  = pRegion->LFO3InternalDepth;
390                  fFinalVolume * VolumeRight * PanRightSmoother.render();                  pLFO3->ExtController = 1; // MIDI controller 1
391  #endif                  bLFO3Enabled         = (lfo3_internal_depth > 0 || pRegion->LFO3ControlDepth > 0);
392              // render audio for one subfragment                  break;
393              RunSynthesisFunction(SynthesisMode, &finalSynthesisParameters, &loop);              case ::gig::lfo3_ctrl_internal_aftertouch:
394                    lfo3_internal_depth  = pRegion->LFO3InternalDepth;
395              // stop the rendering if volume EG is finished                  pLFO3->ExtController = CTRL_TABLE_IDX_AFTERTOUCH;
396              if (EG1.getSegmentType() == EGADSR::segment_end) break;                  bLFO3Enabled         = (lfo3_internal_depth > 0 || pRegion->LFO3ControlDepth > 0);
397                    break;
398              const double newPos = Pos + (iSubFragmentEnd - i) * finalSynthesisParameters.fFinalPitch;              default:
399                    lfo3_internal_depth  = 0;
400              // increment envelopes' positions                  pLFO3->ExtController = 0; // no external controller
401              if (EG1.active()) {                  bLFO3Enabled         = false;
402            }
403                  // if sample has a loop and loop start has been reached in this subfragment, send a special event to EG1 to let it finish the attack hold stage          if (bLFO3Enabled) {
404                  if (pSample->Loops && Pos <= pSample->LoopStart && pSample->LoopStart < newPos) {              pLFO3->trigger(fromGigLfoWave(pRegion->LFO3WaveForm),
405                      EG1.update(EGADSR::event_hold_end, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);                             pRegion->LFO3Frequency,
406                  }                             pRegion->LFO3Phase,
407                               LFO::start_level_max, // see https://sourceforge.net/p/linuxsampler/mailman/linuxsampler-devel/thread/2189307.cNP0Xbctxq%40silver/#msg36774029
408                               lfo3_internal_depth,
409                               pRegion->LFO3ControlDepth,
410                               pRegion->LFO3FlipPhase,
411                               pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
412                pLFO3->updateByMIDICtrlValue(pLFO3->ExtController ? GetGigEngineChannel()->ControllerTable[pLFO3->ExtController] : 0);
413                pLFO3->setScriptDepthFactor(
414                    pNote->Override.PitchLFODepth.Value,
415                    pNote->Override.PitchLFODepth.Final
416                );
417                if (pNote->Override.PitchLFOFreq.isFinal())
418                    pLFO3->setScriptFrequencyFinal(pNote->Override.PitchLFOFreq.Value, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
419                else
420                    pLFO3->setScriptFrequencyFactor(pNote->Override.PitchLFOFreq.Value, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
421            }
422        }
423    
424                  EG1.increment(1);      float Voice::CalculateCutoffBase(uint8_t MIDIKeyVelocity) {
425                  if (!EG1.toStageEndLeft()) EG1.update(EGADSR::event_stage_end, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);          float cutoff = pRegion->GetVelocityCutoff(MIDIKeyVelocity);
426              }          if (pRegion->VCFKeyboardTracking) {
427              if (EG2.active()) {              cutoff *= RTMath::CentsToFreqRatioUnlimited((MIDIKey() - pRegion->VCFKeyboardTrackingBreakpoint) * 100);
428                  EG2.increment(1);          }
429                  if (!EG2.toStageEndLeft()) EG2.update(EGADSR::event_stage_end, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);          return cutoff;
430              }      }
431              EG3.increment(1);  
432              if (!EG3.toEndLeft()) EG3.update(); // neutralize envelope coefficient if end reached      /// Returns true for GigaStudio's original filter types.
433        constexpr bool isGStFilterType(::gig::vcf_type_t type) {
434            return type == ::gig::vcf_type_lowpass ||
435                   type == ::gig::vcf_type_lowpassturbo ||
436                   type == ::gig::vcf_type_bandpass ||
437                   type == ::gig::vcf_type_highpass ||
438                   type == ::gig::vcf_type_bandreject;
439        }
440    
441        float Voice::CalculateFinalCutoff(float cutoffBase) {
442            int cvalue;
443            if (VCFCutoffCtrl.controller) {
444                cvalue = GetGigEngineChannel()->ControllerTable[VCFCutoffCtrl.controller];
445                if (pRegion->VCFCutoffControllerInvert) cvalue = 127 - cvalue;
446                // VCFVelocityScale in this case means Minimum cutoff
447                if (cvalue < pRegion->VCFVelocityScale) cvalue = pRegion->VCFVelocityScale;
448            }
449            else {
450                cvalue = pRegion->VCFCutoff;
451            }
452            float fco = cutoffBase * float(cvalue);
453            if (fco > 127.0f) fco = 127.0f;
454    
455              Pos = newPos;          // the filter implementations of the original GSt filter types take an
456              i = iSubFragmentEnd;          // abstract cutoff parameter range of 0..127, ...
457            if (isGStFilterType(pRegion->VCFType))
458                return fco;
459    
460            // ... whereas our own filter types take a cutoff parameter in Hz, so
461            // remap here 0 .. 127 [lin] -> 21 Hz .. 18 kHz [x^4] (center @2.2 kHz)
462            fco = (fco + 29.f) / (127.f + 29.f);
463            fco = fco * fco * fco * fco * 18000.f;
464            if (fco > 0.49f * pEngine->SampleRate)
465                fco = 0.49f * pEngine->SampleRate;
466            return fco;
467        }
468    
469        uint8_t Voice::GetVCFCutoffCtrl() {
470            uint8_t ctrl;
471            switch (pRegion->VCFCutoffController) {
472                case ::gig::vcf_cutoff_ctrl_modwheel:
473                    ctrl = 1;
474                    break;
475                case ::gig::vcf_cutoff_ctrl_effect1:
476                    ctrl = 12;
477                    break;
478                case ::gig::vcf_cutoff_ctrl_effect2:
479                    ctrl = 13;
480                    break;
481                case ::gig::vcf_cutoff_ctrl_breath:
482                    ctrl = 2;
483                    break;
484                case ::gig::vcf_cutoff_ctrl_foot:
485                    ctrl = 4;
486                    break;
487                case ::gig::vcf_cutoff_ctrl_sustainpedal:
488                    ctrl = 64;
489                    break;
490                case ::gig::vcf_cutoff_ctrl_softpedal:
491                    ctrl = 67;
492                    break;
493                case ::gig::vcf_cutoff_ctrl_genpurpose7:
494                    ctrl = 82;
495                    break;
496                case ::gig::vcf_cutoff_ctrl_genpurpose8:
497                    ctrl = 83;
498                    break;
499                case ::gig::vcf_cutoff_ctrl_aftertouch:
500                    ctrl = CTRL_TABLE_IDX_AFTERTOUCH;
501                    break;
502                case ::gig::vcf_cutoff_ctrl_none:
503                default:
504                    ctrl = 0;
505                    break;
506          }          }
507    
508            return ctrl;
509      }      }
510    
511      /** @brief Update current portamento position.      uint8_t Voice::GetVCFResonanceCtrl() {
512       *          uint8_t ctrl;
513       * Will be called when portamento mode is enabled to get the final          switch (pRegion->VCFResonanceController) {
514       * portamento position of this active voice from where the next voice(s)              case ::gig::vcf_res_ctrl_genpurpose3:
515       * might continue to slide on.                  ctrl = 18;
516       *                  break;
517       * @param itNoteOffEvent - event which causes this voice to die soon              case ::gig::vcf_res_ctrl_genpurpose4:
518       */                  ctrl = 19;
519      void Voice::UpdatePortamentoPos(Pool<Event>::Iterator& itNoteOffEvent) {                  break;
520          const float fFinalEG3Level = EG3.level(itNoteOffEvent->FragmentPos());              case ::gig::vcf_res_ctrl_genpurpose5:
521          pEngineChannel->PortamentoPos = (float) MIDIKey + RTMath::FreqRatioToCents(fFinalEG3Level) * 0.01f;                  ctrl = 80;
522      }                  break;
523                case ::gig::vcf_res_ctrl_genpurpose6:
524      /**                  ctrl = 81;
525       *  Immediately kill the voice. This method should not be used to kill                  break;
526       *  a normal, active voice, because it doesn't take care of things like              case ::gig::vcf_res_ctrl_none:
527       *  fading down the volume level to avoid clicks and regular processing              default:
528       *  until the kill event actually occured!                  ctrl = 0;
529       *          }
530       *  @see Kill()  
531       */          return ctrl;
532      void Voice::KillImmediately() {      }
         if (DiskVoice && DiskStreamRef.State != Stream::state_unused) {  
             pDiskThread->OrderDeletionOfStream(&DiskStreamRef);  
         }  
         Reset();  
     }  
   
     /**  
      *  Kill the voice in regular sense. Let the voice render audio until  
      *  the kill event actually occured and then fade down the volume level  
      *  very quickly and let the voice die finally. Unlike a normal release  
      *  of a voice, a kill process cannot be cancalled and is therefore  
      *  usually used for voice stealing and key group conflicts.  
      *  
      *  @param itKillEvent - event which caused the voice to be killed  
      */  
     void Voice::Kill(Pool<Event>::Iterator& itKillEvent) {  
         #if CONFIG_DEVMODE  
         if (!itKillEvent) dmsg(1,("gig::Voice::Kill(): ERROR, !itKillEvent !!!\n"));  
         if (itKillEvent && !itKillEvent.isValid()) dmsg(1,("gig::Voice::Kill(): ERROR, itKillEvent invalid !!!\n"));  
         #endif // CONFIG_DEVMODE  
533    
534          if (itTriggerEvent && itKillEvent->FragmentPos() <= itTriggerEvent->FragmentPos()) return;      void Voice::TriggerEG1(const EGInfo& egInfo, double velrelease, double velocityAttenuation, uint sampleRate, uint8_t velocity) {
535          this->itKillEvent = itKillEvent;          EG1.setStateOptions(
536                pRegion->EG1Options.AttackCancel,
537                pRegion->EG1Options.AttackHoldCancel,
538                pRegion->EG1Options.Decay1Cancel,
539                pRegion->EG1Options.Decay2Cancel,
540                pRegion->EG1Options.ReleaseCancel
541            );
542            EG1.trigger(pRegion->EG1PreAttack,
543                        (pNote && pNote->Override.Attack.isFinal()) ?
544                            pNote->Override.Attack.Value :
545                            RTMath::Max(pRegion->EG1Attack, 0.0316) * egInfo.Attack,
546                        pRegion->EG1Hold,
547                        (pNote && pNote->Override.Decay.isFinal()) ?
548                            pNote->Override.Decay.Value :
549                            pRegion->EG1Decay1 * egInfo.Decay * velrelease,
550                        (pNote && pNote->Override.Decay.isFinal()) ?
551                            pNote->Override.Decay.Value :
552                            pRegion->EG1Decay2 * egInfo.Decay * velrelease,
553                        pRegion->EG1InfiniteSustain,
554                        (pNote && pNote->Override.Sustain.Final) ?
555                            uint(pNote->Override.Sustain.Value * 1000.f) :
556                            pRegion->EG1Sustain * (pNote ? pNote->Override.Sustain.Value : 1.f),
557                        (pNote && pNote->Override.Release.isFinal()) ?
558                            pNote->Override.Release.Value :
559                            RTMath::Max(pRegion->EG1Release * velrelease, 0.014) * egInfo.Release,
560                        velocityAttenuation,
561                        sampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
562        }
563    
564        void Voice::TriggerEG2(const EGInfo& egInfo, double velrelease, double velocityAttenuation, uint sampleRate, uint8_t velocity) {
565            EG2.setStateOptions(
566                pRegion->EG2Options.AttackCancel,
567                pRegion->EG2Options.AttackHoldCancel,
568                pRegion->EG2Options.Decay1Cancel,
569                pRegion->EG2Options.Decay2Cancel,
570                pRegion->EG2Options.ReleaseCancel
571            );
572            EG2.trigger(uint(RgnInfo.EG2PreAttack),
573                        (pNote && pNote->Override.CutoffAttack.isFinal()) ?
574                            pNote->Override.CutoffAttack.Value :
575                            RgnInfo.EG2Attack * egInfo.Attack,
576                        false,
577                        (pNote && pNote->Override.CutoffDecay.isFinal()) ?
578                            pNote->Override.CutoffDecay.Value :
579                            RgnInfo.EG2Decay1 * egInfo.Decay * velrelease,
580                        (pNote && pNote->Override.CutoffDecay.isFinal()) ?
581                            pNote->Override.CutoffDecay.Value :
582                            RgnInfo.EG2Decay2 * egInfo.Decay * velrelease,
583                        RgnInfo.EG2InfiniteSustain,
584                        (pNote && pNote->Override.CutoffSustain.Final) ?
585                            uint(pNote->Override.CutoffSustain.Value * 1000.f) :
586                            uint(RgnInfo.EG2Sustain),
587                        (pNote && pNote->Override.CutoffRelease.isFinal()) ?
588                            pNote->Override.CutoffRelease.Value :
589                            RgnInfo.EG2Release * egInfo.Release * velrelease,
590                        velocityAttenuation,
591                        sampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
592        }
593    
594        void Voice::ProcessGroupEvent(RTList<Event>::Iterator& itEvent) {
595            dmsg(4,("Voice %p processGroupEvents event type=%d", (void*)this, itEvent->Type));
596    
597            // TODO: The SustainPedal condition could be wrong, maybe the
598            // check should be if this Voice is in release stage or is a
599            // release sample instead. Need to test this in GSt.
600            // -- Andreas
601            //
602            // Commented sustain pedal check out. I don't think voices of the same
603            // note should be stopped at all, because it doesn't sound naturally
604            // with a drumkit.
605            // -- Christian, 2013-01-08
606            if (itEvent->Param.Note.Key != HostKey() /*||
607                !GetGigEngineChannel()->SustainPedal*/) {
608                dmsg(4,("Voice %p - kill", (void*)this));
609    
610                // kill the voice fast
611                pEG1->enterFadeOutStage();
612            }
613        }
614    
615        void Voice::CalculateFadeOutCoeff(float FadeOutTime, float SampleRate) {
616            EG1.CalculateFadeOutCoeff(FadeOutTime, SampleRate);
617        }
618    
619        int Voice::CalculatePan(uint8_t pan) {
620            int p;
621            // Gst behaviour: -64 and 63 are special cases
622            if (RgnInfo.Pan == -64)     p = pan * 2 - 127;
623            else if (RgnInfo.Pan == 63) p = pan * 2;
624            else                        p = pan + RgnInfo.Pan;
625    
626            if (p < 0) return 0;
627            if (p > 127) return 127;
628            return p;
629        }
630    
631        release_trigger_t Voice::GetReleaseTriggerFlags() {
632            release_trigger_t flags =
633                (pRegion->NoNoteOffReleaseTrigger) ?
634                    release_trigger_none : release_trigger_noteoff; //HACK: currently this method is actually only called by EngineBase if it already knows that this voice requires release trigger, so I took the short way instead of checking (again) the existence of a ::gig::dimension_releasetrigger
635            switch (pRegion->SustainReleaseTrigger) {
636                case ::gig::sust_rel_trg_none:
637                    break;
638                case ::gig::sust_rel_trg_maxvelocity:
639                    flags |= release_trigger_sustain_maxvelocity;
640                    break;
641                case ::gig::sust_rel_trg_keyvelocity:
642                    flags |= release_trigger_sustain_keyvelocity;
643                    break;
644            }
645            return flags;
646      }      }
647    
648  }} // namespace LinuxSampler::gig  }} // namespace LinuxSampler::gig
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