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

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revision 841 by persson, Sat Mar 4 16:23:53 2006 UTC revision 3625 by schoenebeck, Thu Oct 3 13:37:25 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());      // converts ::gig::lfo_wave_t (libgig) -> LFO::wave_t (LinuxSampler)
37        inline LFO::wave_t fromGigLfoWave(::gig::lfo_wave_t wave) {
38      float Voice::CalculateFilterCutoffCoeff() {          // simply assuming equally mapped enums on both sides
39          return log(CONFIG_FILTER_CUTOFF_MAX / CONFIG_FILTER_CUTOFF_MIN);          return static_cast<LFO::wave_t>(wave);
40      }      }
41    
42      Voice::Voice() {      Voice::Voice() {
43          pEngine     = NULL;          pEngine = NULL;
44          pDiskThread = NULL;          pEG1 = &EG1;
45          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();  
46      }      }
47    
48      Voice::~Voice() {      Voice::~Voice() {
         if (pLFO1) delete pLFO1;  
         if (pLFO2) delete pLFO2;  
         if (pLFO3) delete pLFO3;  
49      }      }
50    
51      void Voice::SetEngine(Engine* pEngine) {      EngineChannel* Voice::GetGigEngineChannel() {
52          this->pEngine     = pEngine;          return static_cast<EngineChannel*>(pEngineChannel);
53          this->pDiskThread = pEngine->pDiskThread;      }
54    
55        void Voice::SetEngine(LinuxSampler::Engine* pEngine) {
56            Engine* engine = static_cast<Engine*>(pEngine);
57            this->pEngine     = engine;
58            this->pDiskThread = engine->pDiskThread;
59          dmsg(6,("Voice::SetEngine()\n"));          dmsg(6,("Voice::SetEngine()\n"));
60      }      }
61    
62      /**      Voice::SampleInfo Voice::GetSampleInfo() {
63       *  Initializes and triggers the voice, a disk stream will be launched if          SampleInfo si;
64       *  needed.          si.SampleRate       = pSample->SamplesPerSecond;
65       *          si.ChannelCount     = pSample->Channels;
66       *  @param pEngineChannel - engine channel on which this voice was ordered          si.FrameSize        = pSample->FrameSize;
67       *  @param itNoteOnEvent  - event that caused triggering of this voice          si.BitDepth         = pSample->BitDepth;
68       *  @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;  
         }  
69    
70          // select channel mode (mono or stereo)          si.HasLoops       = pRegion->SampleLoops;
71          SYNTHESIS_MODE_SET_CHANNELS(SynthesisMode, pSample->Channels == 2);          si.LoopStart      = (si.HasLoops) ? pRegion->pSampleLoops[0].LoopStart  : 0;
72            si.LoopLength     = (si.HasLoops) ? pRegion->pSampleLoops[0].LoopLength : 0;
73            si.LoopPlayCount  = pSample->LoopPlayCount;
74            si.Unpitched      = !pRegion->PitchTrack;
75    
76          // get starting crossfade volume level          return si;
77          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;  
         }  
78    
79          VolumeLeft  = volume * Engine::PanCurve[64 - pDimRgn->Pan];      Voice::RegionInfo Voice::GetRegionInfo() {
80          VolumeRight = volume * Engine::PanCurve[64 + pDimRgn->Pan];          RegionInfo ri;
81            ri.UnityNote = pRegion->UnityNote;
82            ri.FineTune  = pRegion->FineTune;
83            ri.Pan       = pRegion->Pan;
84            ri.SampleStartOffset = pRegion->SampleStartOffset;
85    
86          float subfragmentRate = pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE;          ri.EG2PreAttack        = pRegion->EG2PreAttack;
87          CrossfadeSmoother.trigger(crossfadeVolume, subfragmentRate);          ri.EG2Attack           = pRegion->EG2Attack;
88          VolumeSmoother.trigger(pEngineChannel->GlobalVolume, subfragmentRate);          ri.EG2Decay1           = pRegion->EG2Decay1;
89          PanLeftSmoother.trigger(pEngineChannel->GlobalPanLeft, subfragmentRate);          ri.EG2Decay2           = pRegion->EG2Decay2;
90          PanRightSmoother.trigger(pEngineChannel->GlobalPanRight, subfragmentRate);          ri.EG2Sustain          = pRegion->EG2Sustain;
91            ri.EG2InfiniteSustain  = pRegion->EG2InfiniteSustain;
92          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;  
93    
94              // calculate influence of EG1 controller on EG1's parameters          ri.EG3Attack     = pRegion->EG3Attack;
95              // (eg1attack is different from the others)          ri.EG3Depth      = pRegion->EG3Depth;
96              double eg1attack  = (pDimRgn->EG1ControllerAttackInfluence)  ?          ri.VCFEnabled    = pRegion->VCFEnabled;
97                  1 + 0.031 * (double) (pDimRgn->EG1ControllerAttackInfluence == 1 ?          ri.VCFType       = Filter::vcf_type_t(pRegion->VCFType);
98                                        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;  
99    
100              // 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);  
             }  
         }  
101    
102            return ri;
103        }
104    
105          // setup LFO 2 (VCF Cutoff LFO)      Voice::InstrumentInfo Voice::GetInstrumentInfo() {
106          {          InstrumentInfo ii;
107              uint16_t lfo2_internal_depth;          ii.FineTune = GetGigEngineChannel()->pInstrument->FineTune;
108              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);  
             }  
         }  
109    
110            return ii;
111        }
112    
113          // setup LFO 3 (VCO LFO)      double Voice::GetSampleAttenuation() {
114          {          return pRegion->SampleAttenuation;
115              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);  
             }  
         }  
116    
117        double Voice::GetVelocityAttenuation(uint8_t MIDIKeyVelocity) {
118            return pRegion->GetVelocityAttenuation(MIDIKeyVelocity);
119        }
120    
121          #if CONFIG_FORCE_FILTER      double Voice::GetVelocityRelease(uint8_t MIDIKeyVelocity) {
122          const bool bUseFilter = true;          return pRegion->GetVelocityRelease(MIDIKeyVelocity);
123          #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  
124    
125              #ifdef CONFIG_OVERRIDE_RESONANCE_CTRL      void Voice::ProcessCCEvent(RTList<Event>::Iterator& itEvent) {
126              VCFResonanceCtrl.controller = CONFIG_OVERRIDE_RESONANCE_CTRL;          if (itEvent->Type == Event::type_control_change && itEvent->Param.CC.Controller) { // if (valid) MIDI control change event
127              #else // use the one defined in the instrument file              if (pRegion->AttenuationController.type == ::gig::attenuation_ctrl_t::type_controlchange &&
128              switch (pDimRgn->VCFResonanceController) {                  itEvent->Param.CC.Controller == pRegion->AttenuationController.controller_number) {
129                  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;  
130              }              }
131              #endif // CONFIG_OVERRIDE_RESONANCE_CTRL          }
132        }
133    
134              #ifndef CONFIG_OVERRIDE_FILTER_TYPE      void Voice::ProcessChannelPressureEvent(RTList<Event>::Iterator& itEvent) {
135              finalSynthesisParameters.filterLeft.SetType(pDimRgn->VCFType);          if (itEvent->Type == Event::type_channel_pressure) { // if (valid) MIDI channel pressure (aftertouch) event
136              finalSynthesisParameters.filterRight.SetType(pDimRgn->VCFType);              if (pRegion->AttenuationController.type == ::gig::attenuation_ctrl_t::type_channelaftertouch) {
137              #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)  
138              }              }
139              CutoffBase = cutoff;          }
140        }
141    
142              int cvalue;      void Voice::ProcessPolyphonicKeyPressureEvent(RTList<Event>::Iterator& itEvent) {
143              if (VCFCutoffCtrl.controller) {          // Not used so far
144                  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;  
145    
146              // calculate resonance      void Voice::ProcessCutoffEvent(RTList<Event>::Iterator& itEvent) {
147              float resonance = (float) (VCFResonanceCtrl.controller ? VCFResonanceCtrl.value : pDimRgn->VCFResonance) * 0.00787f; // 0.0..1.0          int ccvalue = itEvent->Param.CC.Value;
148            if (VCFCutoffCtrl.value == ccvalue) return;
149            VCFCutoffCtrl.value = ccvalue;
150            if (pRegion->VCFCutoffControllerInvert)  ccvalue = 127 - ccvalue;
151            if (ccvalue < pRegion->VCFVelocityScale) ccvalue = pRegion->VCFVelocityScale;
152            float cutoff = CutoffBase * float(ccvalue);
153            if (cutoff > 127.0f) cutoff = 127.0f;
154    
155              VCFCutoffCtrl.fvalue    = cutoff - 1.0;          VCFCutoffCtrl.fvalue = cutoff; // needed for initialization of fFinalCutoff next time
156              VCFResonanceCtrl.fvalue = resonance;          fFinalCutoff = cutoff;
157          }      }
158          else {  
159              VCFCutoffCtrl.controller    = 0;      double Voice::CalculateCrossfadeVolume(uint8_t MIDIKeyVelocity) {
160              VCFResonanceCtrl.controller = 0;          float crossfadeVolume;
161            switch (pRegion->AttenuationController.type) {
162                case ::gig::attenuation_ctrl_t::type_channelaftertouch:
163                    crossfadeVolume = Engine::CrossfadeCurve[CrossfadeAttenuation(GetGigEngineChannel()->ControllerTable[128])];
164                    break;
165                case ::gig::attenuation_ctrl_t::type_velocity:
166                    crossfadeVolume = Engine::CrossfadeCurve[CrossfadeAttenuation(MIDIKeyVelocity)];
167                    break;
168                case ::gig::attenuation_ctrl_t::type_controlchange: //FIXME: currently not sample accurate
169                    crossfadeVolume = Engine::CrossfadeCurve[CrossfadeAttenuation(GetGigEngineChannel()->ControllerTable[pRegion->AttenuationController.controller_number])];
170                    break;
171                case ::gig::attenuation_ctrl_t::type_none: // no crossfade defined
172                default:
173                    crossfadeVolume = 1.0f;
174          }          }
175    
176          return 0; // success          return crossfadeVolume;
177      }      }
178    
179      /**      double Voice::GetEG1ControllerValue(uint8_t MIDIKeyVelocity) {
180       *  Renders the audio data for this voice for the current audio fragment.          double eg1controllervalue = 0;
181       *  The sample input data can either come from RAM (cached sample or sample          switch (pRegion->EG1Controller.type) {
182       *  part) or directly from disk. The output signal will be rendered by              case ::gig::eg1_ctrl_t::type_none: // no controller defined
183       *  resampling / interpolation. If this voice is a disk streaming voice and                  eg1controllervalue = 0;
184       *  the voice completely played back the cached RAM part of the sample, it                  break;
185       *  will automatically switch to disk playback for the next RenderAudio()              case ::gig::eg1_ctrl_t::type_channelaftertouch:
186       *  call.                  eg1controllervalue = GetGigEngineChannel()->ControllerTable[128];
187       *                  break;
188       *  @param Samples - number of samples to be rendered in this audio fragment cycle              case ::gig::eg1_ctrl_t::type_velocity:
189       */                  eg1controllervalue = MIDIKeyVelocity;
190      void Voice::Render(uint Samples) {                  break;
191                case ::gig::eg1_ctrl_t::type_controlchange: // MIDI control change controller
192          // select default values for synthesis mode bits                  eg1controllervalue = GetGigEngineChannel()->ControllerTable[pRegion->EG1Controller.controller_number];
193          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);  
             }  
194          }          }
195            if (pRegion->EG1ControllerInvert) eg1controllervalue = 127 - eg1controllervalue;
196    
197            return eg1controllervalue;
198      }      }
199    
200      /**      Voice::EGInfo Voice::CalculateEG1ControllerInfluence(double eg1ControllerValue) {
201       * Process given list of MIDI control change and pitch bend events for          EGInfo eg;
202       * the given time.          // (eg1attack is different from the others)
203       *          if (pRegion->EG1Attack < 1e-8 && // attack in gig == 0
204       * @param itEvent - iterator pointing to the next event to be processed              (pRegion->EG1ControllerAttackInfluence == 0 ||
205       * @param End     - youngest time stamp where processing should be stopped               eg1ControllerValue <= 10)) { // strange GSt special case
206       */              eg.Attack = 0; // this will force the attack to be 0 in the call to EG1.trigger
207      void Voice::processCCEvents(RTList<Event>::Iterator& itEvent, uint End) {          } else {
208          for (; itEvent && itEvent->FragmentPos() <= End; ++itEvent) {              eg.Attack  = (pRegion->EG1ControllerAttackInfluence)  ?
209              if (itEvent->Type == Event::type_control_change &&                  1 + 0.031 * (double) (pRegion->EG1ControllerAttackInfluence == 1 ?
210                  itEvent->Param.CC.Controller) { // if (valid) MIDI control change event                                        1 : 1 << pRegion->EG1ControllerAttackInfluence) * eg1ControllerValue : 1.0;
211                  if (itEvent->Param.CC.Controller == VCFCutoffCtrl.controller) {          }
212                      processCutoffEvent(itEvent);          eg.Decay   = (pRegion->EG1ControllerDecayInfluence)   ? 1 + 0.00775 * (double) (1 << pRegion->EG1ControllerDecayInfluence)   * eg1ControllerValue : 1.0;
213                  }          eg.Release = (pRegion->EG1ControllerReleaseInfluence) ? 1 + 0.00775 * (double) (1 << pRegion->EG1ControllerReleaseInfluence) * eg1ControllerValue : 1.0;
214                  if (itEvent->Param.CC.Controller == VCFResonanceCtrl.controller) {  
215                      processResonanceEvent(itEvent);          return eg;
216                  }      }
217                  if (itEvent->Param.CC.Controller == pLFO1->ExtController) {  
218                      pLFO1->update(itEvent->Param.CC.Value);      double Voice::GetEG2ControllerValue(uint8_t MIDIKeyVelocity) {
219                  }          double eg2controllervalue = 0;
220                  if (itEvent->Param.CC.Controller == pLFO2->ExtController) {          switch (pRegion->EG2Controller.type) {
221                      pLFO2->update(itEvent->Param.CC.Value);              case ::gig::eg2_ctrl_t::type_none: // no controller defined
222                  }                  eg2controllervalue = 0;
223                  if (itEvent->Param.CC.Controller == pLFO3->ExtController) {                  break;
224                      pLFO3->update(itEvent->Param.CC.Value);              case ::gig::eg2_ctrl_t::type_channelaftertouch:
225                  }                  eg2controllervalue = GetGigEngineChannel()->ControllerTable[128];
226                  if (pDimRgn->AttenuationController.type == ::gig::attenuation_ctrl_t::type_controlchange &&                  break;
227                      itEvent->Param.CC.Controller == pDimRgn->AttenuationController.controller_number) {              case ::gig::eg2_ctrl_t::type_velocity:
228                      CrossfadeSmoother.update(Engine::CrossfadeCurve[CrossfadeAttenuation(itEvent->Param.CC.Value)]);                  eg2controllervalue = MIDIKeyVelocity;
229                  }                  break;
230                  if (itEvent->Param.CC.Controller == 7) { // volume              case ::gig::eg2_ctrl_t::type_controlchange: // MIDI control change controller
231                      VolumeSmoother.update(Engine::VolumeCurve[itEvent->Param.CC.Value] * CONFIG_GLOBAL_ATTENUATION);                  eg2controllervalue = GetGigEngineChannel()->ControllerTable[pRegion->EG2Controller.controller_number];
232                  } 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);  
             }  
233          }          }
234      }          if (pRegion->EG2ControllerInvert) eg2controllervalue = 127 - eg2controllervalue;
235    
236      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;  
237      }      }
238    
239      void Voice::processCutoffEvent(RTList<Event>::Iterator& itEvent) {      Voice::EGInfo Voice::CalculateEG2ControllerInfluence(double eg2ControllerValue) {
240          int ccvalue = itEvent->Param.CC.Value;          EGInfo eg;
241          if (VCFCutoffCtrl.value == ccvalue) return;          eg.Attack  = (pRegion->EG2ControllerAttackInfluence)  ? 1 + 0.00775 * (double) (1 << pRegion->EG2ControllerAttackInfluence)  * eg2ControllerValue : 1.0;
242          VCFCutoffCtrl.value == ccvalue;          eg.Decay   = (pRegion->EG2ControllerDecayInfluence)   ? 1 + 0.00775 * (double) (1 << pRegion->EG2ControllerDecayInfluence)   * eg2ControllerValue : 1.0;
243          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;  
244    
245          VCFCutoffCtrl.fvalue = cutoff - 1.0; // needed for initialization of fFinalCutoff next time          return eg;
         fFinalCutoff = cutoff;  
246      }      }
247    
248      void Voice::processResonanceEvent(RTList<Event>::Iterator& itEvent) {      void Voice::InitLFO1() {
249          // convert absolute controller value to differential          uint16_t lfo1_internal_depth;
250          const int ctrldelta = itEvent->Param.CC.Value - VCFResonanceCtrl.value;          switch (pRegion->LFO1Controller) {
251          VCFResonanceCtrl.value = itEvent->Param.CC.Value;              case ::gig::lfo1_ctrl_internal:
252          const float resonancedelta = (float) ctrldelta * 0.00787f; // 0.0..1.0                  lfo1_internal_depth  = pRegion->LFO1InternalDepth;
253          fFinalResonance += resonancedelta;                  pLFO1->ExtController = 0; // no external controller
254          // needed for initialization of parameter                  bLFO1Enabled         = (lfo1_internal_depth > 0);
255          VCFResonanceCtrl.fvalue = itEvent->Param.CC.Value * 0.00787f;                  break;
256      }              case ::gig::lfo1_ctrl_modwheel:
257                    lfo1_internal_depth  = 0;
258      /**                  pLFO1->ExtController = 1; // MIDI controller 1
259       *  Synthesizes the current audio fragment for this voice.                  bLFO1Enabled         = (pRegion->LFO1ControlDepth > 0);
260       *                  break;
261       *  @param Samples - number of sample points to be rendered in this audio              case ::gig::lfo1_ctrl_breath:
262       *                   fragment cycle                  lfo1_internal_depth  = 0;
263       *  @param pSrc    - pointer to input sample data                  pLFO1->ExtController = 2; // MIDI controller 2
264       *  @param Skip    - number of sample points to skip in output buffer                  bLFO1Enabled         = (pRegion->LFO1ControlDepth > 0);
265       */                  break;
266      void Voice::Synthesize(uint Samples, sample_t* pSrc, uint Skip) {              case ::gig::lfo1_ctrl_internal_modwheel:
267          finalSynthesisParameters.pOutLeft  = &pEngineChannel->pOutputLeft[Skip];                  lfo1_internal_depth  = pRegion->LFO1InternalDepth;
268          finalSynthesisParameters.pOutRight = &pEngineChannel->pOutputRight[Skip];                  pLFO1->ExtController = 1; // MIDI controller 1
269          finalSynthesisParameters.pSrc      = pSrc;                  bLFO1Enabled         = (lfo1_internal_depth > 0 || pRegion->LFO1ControlDepth > 0);
270                    break;
271          RTList<Event>::Iterator itCCEvent = pEngineChannel->pEvents->first();              case ::gig::lfo1_ctrl_internal_breath:
272          RTList<Event>::Iterator itNoteEvent = pEngineChannel->pMIDIKeyInfo[MIDIKey].pEvents->first();                  lfo1_internal_depth  = pRegion->LFO1InternalDepth;
273                    pLFO1->ExtController = 2; // MIDI controller 2
274          if (Skip) { // skip events that happened before this voice was triggered                  bLFO1Enabled         = (lfo1_internal_depth > 0 || pRegion->LFO1ControlDepth > 0);
275              while (itCCEvent && itCCEvent->FragmentPos() <= Skip) ++itCCEvent;                  break;
276              while (itNoteEvent && itNoteEvent->FragmentPos() <= Skip) ++itNoteEvent;              default:
277          }                  lfo1_internal_depth  = 0;
278                    pLFO1->ExtController = 0; // no external controller
279          uint killPos;                  bLFO1Enabled         = false;
280          if (itKillEvent) killPos = RTMath::Min(itKillEvent->FragmentPos(), pEngine->MaxFadeOutPos);          }
281            if (bLFO1Enabled) {
282          uint i = Skip;              pLFO1->trigger(fromGigLfoWave(pRegion->LFO1WaveForm),
283          while (i < Samples) {                             pRegion->LFO1Frequency,
284              int iSubFragmentEnd = RTMath::Min(i + CONFIG_DEFAULT_SUBFRAGMENT_SIZE, Samples);                             pRegion->LFO1Phase,
285                               LFO::start_level_mid, // see https://sourceforge.net/p/linuxsampler/mailman/linuxsampler-devel/thread/2189307.cNP0Xbctxq%40silver/#msg36774029
286              // initialize all final synthesis parameters                             lfo1_internal_depth,
287              finalSynthesisParameters.fFinalPitch = PitchBase * PitchBend;                             pRegion->LFO1ControlDepth,
288              fFinalCutoff    = VCFCutoffCtrl.fvalue;                             pRegion->LFO1FlipPhase,
289              fFinalResonance = VCFResonanceCtrl.fvalue;                             pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
290                pLFO1->updateByMIDICtrlValue(pLFO1->ExtController ? GetGigEngineChannel()->ControllerTable[pLFO1->ExtController] : 0);
291              // process MIDI control change and pitchbend events for this subfragment              pLFO1->setScriptDepthFactor(
292              processCCEvents(itCCEvent, iSubFragmentEnd);                  pNote->Override.AmpLFODepth.Value,
293                    pNote->Override.AmpLFODepth.Final
294              float fFinalVolume = VolumeSmoother.render() * CrossfadeSmoother.render();              );
295  #ifdef CONFIG_PROCESS_MUTED_CHANNELS              if (pNote->Override.AmpLFOFreq.isFinal())
296              if (pEngineChannel->GetMute()) fFinalVolume = 0;                  pLFO1->setScriptFrequencyFinal(
297  #endif                      pNote->Override.AmpLFOFreq.Value, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE
298                    );
299              // process transition events (note on, note off & sustain pedal)              else
300              processTransitionEvents(itNoteEvent, iSubFragmentEnd);                  pLFO1->setScriptFrequencyFactor(
301                        pNote->Override.AmpLFOFreq.Value, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE
302              // if the voice was killed in this subfragment switch EG1 to fade out stage                  );
303              if (itKillEvent && killPos <= iSubFragmentEnd) {          }
304                  EG1.enterFadeOutStage();      }
                 itKillEvent = Pool<Event>::Iterator();  
             }  
305    
306              // process envelope generators      void Voice::InitLFO2() {
307              switch (EG1.getSegmentType()) {          uint16_t lfo2_internal_depth;
308                  case EGADSR::segment_lin:          switch (pRegion->LFO2Controller) {
309                      fFinalVolume *= EG1.processLin();              case ::gig::lfo2_ctrl_internal:
310                      break;                  lfo2_internal_depth  = pRegion->LFO2InternalDepth;
311                  case EGADSR::segment_exp:                  pLFO2->ExtController = 0; // no external controller
312                      fFinalVolume *= EG1.processExp();                  bLFO2Enabled         = (lfo2_internal_depth > 0);
313                      break;                  break;
314                  case EGADSR::segment_end:              case ::gig::lfo2_ctrl_modwheel:
315                      fFinalVolume *= EG1.getLevel();                  lfo2_internal_depth  = 0;
316                      break; // noop                  pLFO2->ExtController = 1; // MIDI controller 1
317              }                  bLFO2Enabled         = (pRegion->LFO2ControlDepth > 0);
318              switch (EG2.getSegmentType()) {                  break;
319                  case EGADSR::segment_lin:              case ::gig::lfo2_ctrl_foot:
320                      fFinalCutoff *= EG2.processLin();                  lfo2_internal_depth  = 0;
321                      break;                  pLFO2->ExtController = 4; // MIDI controller 4
322                  case EGADSR::segment_exp:                  bLFO2Enabled         = (pRegion->LFO2ControlDepth > 0);
323                      fFinalCutoff *= EG2.processExp();                  break;
324                      break;              case ::gig::lfo2_ctrl_internal_modwheel:
325                  case EGADSR::segment_end:                  lfo2_internal_depth  = pRegion->LFO2InternalDepth;
326                      fFinalCutoff *= EG2.getLevel();                  pLFO2->ExtController = 1; // MIDI controller 1
327                      break; // noop                  bLFO2Enabled         = (lfo2_internal_depth > 0 || pRegion->LFO2ControlDepth > 0);
328              }                  break;
329              if (EG3.active()) finalSynthesisParameters.fFinalPitch *= EG3.render();              case ::gig::lfo2_ctrl_internal_foot:
330                    lfo2_internal_depth  = pRegion->LFO2InternalDepth;
331                    pLFO2->ExtController = 4; // MIDI controller 4
332                    bLFO2Enabled         = (lfo2_internal_depth > 0 || pRegion->LFO2ControlDepth > 0);
333                    break;
334                default:
335                    lfo2_internal_depth  = 0;
336                    pLFO2->ExtController = 0; // no external controller
337                    bLFO2Enabled         = false;
338            }
339            if (bLFO2Enabled) {
340                pLFO2->trigger(fromGigLfoWave(pRegion->LFO2WaveForm),
341                               pRegion->LFO2Frequency,
342                               pRegion->LFO2Phase,
343                               LFO::start_level_mid, // see https://sourceforge.net/p/linuxsampler/mailman/linuxsampler-devel/thread/2189307.cNP0Xbctxq%40silver/#msg36774029
344                               lfo2_internal_depth,
345                               pRegion->LFO2ControlDepth,
346                               pRegion->LFO2FlipPhase,
347                               pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
348                pLFO2->updateByMIDICtrlValue(pLFO2->ExtController ? GetGigEngineChannel()->ControllerTable[pLFO2->ExtController] : 0);
349                pLFO2->setScriptDepthFactor(
350                    pNote->Override.CutoffLFODepth.Value,
351                    pNote->Override.CutoffLFODepth.Final
352                );
353                if (pNote->Override.CutoffLFOFreq.isFinal())
354                    pLFO2->setScriptFrequencyFinal(pNote->Override.CutoffLFOFreq.Value, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
355                else
356                    pLFO2->setScriptFrequencyFactor(pNote->Override.CutoffLFOFreq.Value, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
357            }
358        }
359    
360              // process low frequency oscillators      void Voice::InitLFO3() {
361              if (bLFO1Enabled) fFinalVolume *= pLFO1->render();          uint16_t lfo3_internal_depth;
362              if (bLFO2Enabled) fFinalCutoff *= pLFO2->render();          switch (pRegion->LFO3Controller) {
363              if (bLFO3Enabled) finalSynthesisParameters.fFinalPitch *= RTMath::CentsToFreqRatio(pLFO3->render());              case ::gig::lfo3_ctrl_internal:
364                    lfo3_internal_depth  = pRegion->LFO3InternalDepth;
365              // if filter enabled then update filter coefficients                  pLFO3->ExtController = 0; // no external controller
366              if (SYNTHESIS_MODE_GET_FILTER(SynthesisMode)) {                  bLFO3Enabled         = (lfo3_internal_depth > 0);
367                  finalSynthesisParameters.filterLeft.SetParameters(fFinalCutoff + 1.0, fFinalResonance, pEngine->SampleRate);                  break;
368                  finalSynthesisParameters.filterRight.SetParameters(fFinalCutoff + 1.0, fFinalResonance, pEngine->SampleRate);              case ::gig::lfo3_ctrl_modwheel:
369              }                  lfo3_internal_depth  = 0;
370                    pLFO3->ExtController = 1; // MIDI controller 1
371                    bLFO3Enabled         = (pRegion->LFO3ControlDepth > 0);
372                    break;
373                case ::gig::lfo3_ctrl_aftertouch:
374                    lfo3_internal_depth  = 0;
375                    pLFO3->ExtController = CTRL_TABLE_IDX_AFTERTOUCH;
376                    bLFO3Enabled         = true;
377                    break;
378                case ::gig::lfo3_ctrl_internal_modwheel:
379                    lfo3_internal_depth  = pRegion->LFO3InternalDepth;
380                    pLFO3->ExtController = 1; // MIDI controller 1
381                    bLFO3Enabled         = (lfo3_internal_depth > 0 || pRegion->LFO3ControlDepth > 0);
382                    break;
383                case ::gig::lfo3_ctrl_internal_aftertouch:
384                    lfo3_internal_depth  = pRegion->LFO3InternalDepth;
385                    pLFO3->ExtController = CTRL_TABLE_IDX_AFTERTOUCH;
386                    bLFO3Enabled         = (lfo3_internal_depth > 0 || pRegion->LFO3ControlDepth > 0);
387                    break;
388                default:
389                    lfo3_internal_depth  = 0;
390                    pLFO3->ExtController = 0; // no external controller
391                    bLFO3Enabled         = false;
392            }
393            if (bLFO3Enabled) {
394                pLFO3->trigger(fromGigLfoWave(pRegion->LFO3WaveForm),
395                               pRegion->LFO3Frequency,
396                               pRegion->LFO3Phase,
397                               LFO::start_level_max, // see https://sourceforge.net/p/linuxsampler/mailman/linuxsampler-devel/thread/2189307.cNP0Xbctxq%40silver/#msg36774029
398                               lfo3_internal_depth,
399                               pRegion->LFO3ControlDepth,
400                               pRegion->LFO3FlipPhase,
401                               pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
402                pLFO3->updateByMIDICtrlValue(pLFO3->ExtController ? GetGigEngineChannel()->ControllerTable[pLFO3->ExtController] : 0);
403                pLFO3->setScriptDepthFactor(
404                    pNote->Override.PitchLFODepth.Value,
405                    pNote->Override.PitchLFODepth.Final
406                );
407                if (pNote->Override.PitchLFOFreq.isFinal())
408                    pLFO3->setScriptFrequencyFinal(pNote->Override.PitchLFOFreq.Value, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
409                else
410                    pLFO3->setScriptFrequencyFactor(pNote->Override.PitchLFOFreq.Value, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
411            }
412        }
413    
414              // do we need resampling?      float Voice::CalculateCutoffBase(uint8_t MIDIKeyVelocity) {
415              const float __PLUS_ONE_CENT  = 1.000577789506554859250142541782224725466f;          float cutoff = pRegion->GetVelocityCutoff(MIDIKeyVelocity);
416              const float __MINUS_ONE_CENT = 0.9994225441413807496009516495583113737666f;          if (pRegion->VCFKeyboardTracking) {
417              const bool bResamplingRequired = !(finalSynthesisParameters.fFinalPitch <= __PLUS_ONE_CENT &&              cutoff *= RTMath::CentsToFreqRatioUnlimited((MIDIKey() - pRegion->VCFKeyboardTrackingBreakpoint) * 100);
418                                                 finalSynthesisParameters.fFinalPitch >= __MINUS_ONE_CENT);          }
419              SYNTHESIS_MODE_SET_INTERPOLATE(SynthesisMode, bResamplingRequired);          return cutoff;
420        }
421              // prepare final synthesis parameters structure  
422              finalSynthesisParameters.uiToGo            = iSubFragmentEnd - i;      float Voice::CalculateFinalCutoff(float cutoffBase) {
423  #ifdef CONFIG_INTERPOLATE_VOLUME          int cvalue;
424              finalSynthesisParameters.fFinalVolumeDeltaLeft  =          if (VCFCutoffCtrl.controller) {
425                  (fFinalVolume * VolumeLeft  * PanLeftSmoother.render() -              cvalue = GetGigEngineChannel()->ControllerTable[VCFCutoffCtrl.controller];
426                   finalSynthesisParameters.fFinalVolumeLeft) / finalSynthesisParameters.uiToGo;              if (pRegion->VCFCutoffControllerInvert) cvalue = 127 - cvalue;
427              finalSynthesisParameters.fFinalVolumeDeltaRight =              // VCFVelocityScale in this case means Minimum cutoff
428                  (fFinalVolume * VolumeRight * PanRightSmoother.render() -              if (cvalue < pRegion->VCFVelocityScale) cvalue = pRegion->VCFVelocityScale;
429                   finalSynthesisParameters.fFinalVolumeRight) / finalSynthesisParameters.uiToGo;          }
430  #else          else {
431              finalSynthesisParameters.fFinalVolumeLeft  =              cvalue = pRegion->VCFCutoff;
432                  fFinalVolume * VolumeLeft  * PanLeftSmoother.render();          }
433              finalSynthesisParameters.fFinalVolumeRight =          float fco = cutoffBase * float(cvalue);
434                  fFinalVolume * VolumeRight * PanRightSmoother.render();          if (fco > 127.0f) fco = 127.0f;
 #endif  
             // render audio for one subfragment  
             RunSynthesisFunction(SynthesisMode, &finalSynthesisParameters, &loop);  
   
             // stop the rendering if volume EG is finished  
             if (EG1.getSegmentType() == EGADSR::segment_end) break;  
   
             const double newPos = Pos + (iSubFragmentEnd - i) * finalSynthesisParameters.fFinalPitch;  
   
             // increment envelopes' positions  
             if (EG1.active()) {  
   
                 // 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 (pSample->Loops && Pos <= pSample->LoopStart && pSample->LoopStart < newPos) {  
                     EG1.update(EGADSR::event_hold_end, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);  
                 }  
435    
436                  EG1.increment(1);          return fco;
437                  if (!EG1.toStageEndLeft()) EG1.update(EGADSR::event_stage_end, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);      }
             }  
             if (EG2.active()) {  
                 EG2.increment(1);  
                 if (!EG2.toStageEndLeft()) EG2.update(EGADSR::event_stage_end, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);  
             }  
             EG3.increment(1);  
             if (!EG3.toEndLeft()) EG3.update(); // neutralize envelope coefficient if end reached  
438    
439              Pos = newPos;      uint8_t Voice::GetVCFCutoffCtrl() {
440              i = iSubFragmentEnd;          uint8_t ctrl;
441            switch (pRegion->VCFCutoffController) {
442                case ::gig::vcf_cutoff_ctrl_modwheel:
443                    ctrl = 1;
444                    break;
445                case ::gig::vcf_cutoff_ctrl_effect1:
446                    ctrl = 12;
447                    break;
448                case ::gig::vcf_cutoff_ctrl_effect2:
449                    ctrl = 13;
450                    break;
451                case ::gig::vcf_cutoff_ctrl_breath:
452                    ctrl = 2;
453                    break;
454                case ::gig::vcf_cutoff_ctrl_foot:
455                    ctrl = 4;
456                    break;
457                case ::gig::vcf_cutoff_ctrl_sustainpedal:
458                    ctrl = 64;
459                    break;
460                case ::gig::vcf_cutoff_ctrl_softpedal:
461                    ctrl = 67;
462                    break;
463                case ::gig::vcf_cutoff_ctrl_genpurpose7:
464                    ctrl = 82;
465                    break;
466                case ::gig::vcf_cutoff_ctrl_genpurpose8:
467                    ctrl = 83;
468                    break;
469                case ::gig::vcf_cutoff_ctrl_aftertouch:
470                    ctrl = CTRL_TABLE_IDX_AFTERTOUCH;
471                    break;
472                case ::gig::vcf_cutoff_ctrl_none:
473                default:
474                    ctrl = 0;
475                    break;
476          }          }
477    
478            return ctrl;
479      }      }
480    
481      /** @brief Update current portamento position.      uint8_t Voice::GetVCFResonanceCtrl() {
482       *          uint8_t ctrl;
483       * Will be called when portamento mode is enabled to get the final          switch (pRegion->VCFResonanceController) {
484       * portamento position of this active voice from where the next voice(s)              case ::gig::vcf_res_ctrl_genpurpose3:
485       * might continue to slide on.                  ctrl = 18;
486       *                  break;
487       * @param itNoteOffEvent - event which causes this voice to die soon              case ::gig::vcf_res_ctrl_genpurpose4:
488       */                  ctrl = 19;
489      void Voice::UpdatePortamentoPos(Pool<Event>::Iterator& itNoteOffEvent) {                  break;
490          const float fFinalEG3Level = EG3.level(itNoteOffEvent->FragmentPos());              case ::gig::vcf_res_ctrl_genpurpose5:
491          pEngineChannel->PortamentoPos = (float) MIDIKey + RTMath::FreqRatioToCents(fFinalEG3Level) * 0.01f;                  ctrl = 80;
492      }                  break;
493                case ::gig::vcf_res_ctrl_genpurpose6:
494      /**                  ctrl = 81;
495       *  Immediately kill the voice. This method should not be used to kill                  break;
496       *  a normal, active voice, because it doesn't take care of things like              case ::gig::vcf_res_ctrl_none:
497       *  fading down the volume level to avoid clicks and regular processing              default:
498       *  until the kill event actually occured!                  ctrl = 0;
499       *          }
500       *  @see Kill()  
501       */          return ctrl;
502      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  
503    
504          if (itTriggerEvent && itKillEvent->FragmentPos() <= itTriggerEvent->FragmentPos()) return;      void Voice::TriggerEG1(const EGInfo& egInfo, double velrelease, double velocityAttenuation, uint sampleRate, uint8_t velocity) {
505          this->itKillEvent = itKillEvent;          EG1.setStateOptions(
506                pRegion->EG1Options.AttackCancel,
507                pRegion->EG1Options.AttackHoldCancel,
508                pRegion->EG1Options.Decay1Cancel,
509                pRegion->EG1Options.Decay2Cancel,
510                pRegion->EG1Options.ReleaseCancel
511            );
512            EG1.trigger(pRegion->EG1PreAttack,
513                        (pNote && pNote->Override.Attack.isFinal()) ?
514                            pNote->Override.Attack.Value :
515                            RTMath::Max(pRegion->EG1Attack, 0.0316) * egInfo.Attack,
516                        pRegion->EG1Hold,
517                        (pNote && pNote->Override.Decay.isFinal()) ?
518                            pNote->Override.Decay.Value :
519                            pRegion->EG1Decay1 * egInfo.Decay * velrelease,
520                        (pNote && pNote->Override.Decay.isFinal()) ?
521                            pNote->Override.Decay.Value :
522                            pRegion->EG1Decay2 * egInfo.Decay * velrelease,
523                        pRegion->EG1InfiniteSustain,
524                        (pNote && pNote->Override.Sustain.Final) ?
525                            uint(pNote->Override.Sustain.Value * 1000.f) :
526                            pRegion->EG1Sustain * (pNote ? pNote->Override.Sustain.Value : 1.f),
527                        (pNote && pNote->Override.Release.isFinal()) ?
528                            pNote->Override.Release.Value :
529                            RTMath::Max(pRegion->EG1Release * velrelease, 0.014) * egInfo.Release,
530                        velocityAttenuation,
531                        sampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
532        }
533    
534        void Voice::TriggerEG2(const EGInfo& egInfo, double velrelease, double velocityAttenuation, uint sampleRate, uint8_t velocity) {
535            EG2.setStateOptions(
536                pRegion->EG2Options.AttackCancel,
537                pRegion->EG2Options.AttackHoldCancel,
538                pRegion->EG2Options.Decay1Cancel,
539                pRegion->EG2Options.Decay2Cancel,
540                pRegion->EG2Options.ReleaseCancel
541            );
542            EG2.trigger(uint(RgnInfo.EG2PreAttack),
543                        (pNote && pNote->Override.CutoffAttack.isFinal()) ?
544                            pNote->Override.CutoffAttack.Value :
545                            RgnInfo.EG2Attack * egInfo.Attack,
546                        false,
547                        (pNote && pNote->Override.CutoffDecay.isFinal()) ?
548                            pNote->Override.CutoffDecay.Value :
549                            RgnInfo.EG2Decay1 * egInfo.Decay * velrelease,
550                        (pNote && pNote->Override.CutoffDecay.isFinal()) ?
551                            pNote->Override.CutoffDecay.Value :
552                            RgnInfo.EG2Decay2 * egInfo.Decay * velrelease,
553                        RgnInfo.EG2InfiniteSustain,
554                        (pNote && pNote->Override.CutoffSustain.Final) ?
555                            uint(pNote->Override.CutoffSustain.Value * 1000.f) :
556                            uint(RgnInfo.EG2Sustain),
557                        (pNote && pNote->Override.CutoffRelease.isFinal()) ?
558                            pNote->Override.CutoffRelease.Value :
559                            RgnInfo.EG2Release * egInfo.Release * velrelease,
560                        velocityAttenuation,
561                        sampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
562        }
563    
564        void Voice::ProcessGroupEvent(RTList<Event>::Iterator& itEvent) {
565            dmsg(4,("Voice %p processGroupEvents event type=%d", (void*)this, itEvent->Type));
566    
567            // TODO: The SustainPedal condition could be wrong, maybe the
568            // check should be if this Voice is in release stage or is a
569            // release sample instead. Need to test this in GSt.
570            // -- Andreas
571            //
572            // Commented sustain pedal check out. I don't think voices of the same
573            // note should be stopped at all, because it doesn't sound naturally
574            // with a drumkit.
575            // -- Christian, 2013-01-08
576            if (itEvent->Param.Note.Key != HostKey() /*||
577                !GetGigEngineChannel()->SustainPedal*/) {
578                dmsg(4,("Voice %p - kill", (void*)this));
579    
580                // kill the voice fast
581                pEG1->enterFadeOutStage();
582            }
583        }
584    
585        void Voice::CalculateFadeOutCoeff(float FadeOutTime, float SampleRate) {
586            EG1.CalculateFadeOutCoeff(FadeOutTime, SampleRate);
587        }
588    
589        int Voice::CalculatePan(uint8_t pan) {
590            int p;
591            // Gst behaviour: -64 and 63 are special cases
592            if (RgnInfo.Pan == -64)     p = pan * 2 - 127;
593            else if (RgnInfo.Pan == 63) p = pan * 2;
594            else                        p = pan + RgnInfo.Pan;
595    
596            if (p < 0) return 0;
597            if (p > 127) return 127;
598            return p;
599        }
600    
601        release_trigger_t Voice::GetReleaseTriggerFlags() {
602            release_trigger_t flags =
603                (pRegion->NoNoteOffReleaseTrigger) ?
604                    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
605            switch (pRegion->SustainReleaseTrigger) {
606                case ::gig::sust_rel_trg_none:
607                    break;
608                case ::gig::sust_rel_trg_maxvelocity:
609                    flags |= release_trigger_sustain_maxvelocity;
610                    break;
611                case ::gig::sust_rel_trg_keyvelocity:
612                    flags |= release_trigger_sustain_keyvelocity;
613                    break;
614            }
615            return flags;
616      }      }
617    
618  }} // namespace LinuxSampler::gig  }} // namespace LinuxSampler::gig
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