/[svn]/linuxsampler/trunk/src/engines/gig/Voice.cpp
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revision 2012 by iliev, Fri Oct 23 17:53:17 2009 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 - 2009 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 31  Line 33 
33    
34  namespace LinuxSampler { namespace gig {  namespace LinuxSampler { namespace gig {
35    
36      Voice::Voice() {      // sanity checks: fromGigLfoWave() assumes equally mapped enums
37          pEngine     = NULL;      static_assert(int64_t(::gig::lfo_wave_sine) == int64_t(LFO::wave_sine),
38          pDiskThread = NULL;                    "enum LFO::wave_t not equally value mapped to libgig's enum ::gig::lfo_wave_t");
39          PlaybackState = playback_state_end;      static_assert(int64_t(::gig::lfo_wave_triangle) == int64_t(LFO::wave_triangle),
40          pLFO1 = new LFOUnsigned(1.0f);  // amplitude EG (0..1 range)                    "enum LFO::wave_t not equally value mapped to libgig's enum ::gig::lfo_wave_t");
41          pLFO2 = new LFOUnsigned(1.0f);  // filter EG (0..1 range)      static_assert(int64_t(::gig::lfo_wave_saw) == int64_t(LFO::wave_saw),
42          pLFO3 = new LFOSigned(1200.0f); // pitch EG (-1200..+1200 range)                    "enum LFO::wave_t not equally value mapped to libgig's enum ::gig::lfo_wave_t");
43          KeyGroup = 0;      static_assert(int64_t(::gig::lfo_wave_square) == int64_t(LFO::wave_square),
44          SynthesisMode = 0; // set all mode bits to 0 first                    "enum LFO::wave_t not equally value mapped to libgig's enum ::gig::lfo_wave_t");
45          // select synthesis implementation (asm core is not supported ATM)  
46          #if 0 // CONFIG_ASM && ARCH_X86      // converts ::gig::lfo_wave_t (libgig) -> LFO::wave_t (LinuxSampler)
47          SYNTHESIS_MODE_SET_IMPLEMENTATION(SynthesisMode, Features::supportsMMX() && Features::supportsSSE());      inline LFO::wave_t fromGigLfoWave(::gig::lfo_wave_t wave) {
48          #else          // simply assuming equally mapped enums on both sides
49          SYNTHESIS_MODE_SET_IMPLEMENTATION(SynthesisMode, false);          return static_cast<LFO::wave_t>(wave);
50          #endif      }
         SYNTHESIS_MODE_SET_PROFILING(SynthesisMode, Profiler::isEnabled());  
51    
52          finalSynthesisParameters.filterLeft.Reset();      Voice::Voice() {
53          finalSynthesisParameters.filterRight.Reset();          pEngine = NULL;
54            pEG1 = &EG1;
55            pEG2 = &EG2;
56      }      }
57    
58      Voice::~Voice() {      Voice::~Voice() {
59          if (pLFO1) delete pLFO1;      }
60          if (pLFO2) delete pLFO2;  
61          if (pLFO3) delete pLFO3;      EngineChannel* Voice::GetGigEngineChannel() {
62            return static_cast<EngineChannel*>(pEngineChannel);
63      }      }
64    
65      void Voice::SetEngine(LinuxSampler::Engine* pEngine) {      void Voice::SetEngine(LinuxSampler::Engine* pEngine) {
# Line 65  namespace LinuxSampler { namespace gig { Line 69  namespace LinuxSampler { namespace gig {
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;  
         Orphan = false;  
   
         #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);  
   
         // For 16 bit samples, we downscale by 32768 to convert from  
         // int16 value range to DSP value range (which is  
         // -1.0..1.0). For 24 bit, we downscale from int32.  
         float volume = velocityAttenuation / (pSample->BitDepth == 16 ? 32768.0f : 32768.0f * 65536.0f);  
   
         volume *= pDimRgn->SampleAttenuation * pEngineChannel->GlobalVolume * GLOBAL_VOLUME;  
   
         // 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;  
         }  
   
         // select channel mode (mono or stereo)  
         SYNTHESIS_MODE_SET_CHANNELS(SynthesisMode, pSample->Channels == 2);  
         // select bit depth (16 or 24)  
         SYNTHESIS_MODE_SET_BITDEPTH24(SynthesisMode, pSample->BitDepth == 24);  
   
         // get starting crossfade volume level  
         float crossfadeVolume;  
         switch (pDimRgn->AttenuationController.type) {  
             case ::gig::attenuation_ctrl_t::type_channelaftertouch:  
                 crossfadeVolume = Engine::CrossfadeCurve[CrossfadeAttenuation(pEngineChannel->ControllerTable[128])];  
                 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;  
         }  
79    
80          VolumeLeft  = volume * Engine::PanCurve[64 - pDimRgn->Pan];          si.HasLoops       = pRegion->SampleLoops;
81          VolumeRight = volume * Engine::PanCurve[64 + pDimRgn->Pan];          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          float subfragmentRate = pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE;          return si;
87          CrossfadeSmoother.trigger(crossfadeVolume, subfragmentRate);      }
         VolumeSmoother.trigger(pEngineChannel->MidiVolume, subfragmentRate);  
         PanLeftSmoother.trigger(pEngineChannel->GlobalPanLeft, subfragmentRate);  
         PanRightSmoother.trigger(pEngineChannel->GlobalPanRight, subfragmentRate);  
   
         finalSynthesisParameters.dPos = pDimRgn->SampleStartOffset; // offset where we should start playback of sample (0 - 2000 sample points)  
         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;  
   
         const DLS::sample_loop_t& loopinfo = pDimRgn->pSampleLoops[0];  
   
         if (DiskVoice) { // voice to be streamed from disk  
             if (cachedsamples > (pEngine->MaxSamplesPerCycle << CONFIG_MAX_PITCH)) {  
                 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)  
             } else {  
                 // The cache is too small to fit a max sample buffer.  
                 // Setting MaxRAMPos to 0 will probably cause a click  
                 // in the audio, but it's better than not handling  
                 // this case at all, which would have caused the  
                 // unsigned MaxRAMPos to be set to a negative number.  
                 MaxRAMPos = 0;  
             }  
88    
89              // check if there's a loop defined which completely fits into the cached (RAM) part of the sample      Voice::RegionInfo Voice::GetRegionInfo() {
90              RAMLoop = (pDimRgn->SampleLoops && (loopinfo.LoopStart + loopinfo.LoopLength) <= MaxRAMPos);          RegionInfo ri;
91            ri.UnityNote = pRegion->UnityNote;
92            ri.FineTune  = pRegion->FineTune;
93            ri.Pan       = pRegion->Pan;
94            ri.SampleStartOffset = pRegion->SampleStartOffset;
95    
96              if (pDiskThread->OrderNewStream(&DiskStreamRef, pDimRgn, MaxRAMPos, !RAMLoop) < 0) {          ri.EG2PreAttack        = pRegion->EG2PreAttack;
97                  dmsg(1,("Disk stream order failed!\n"));          ri.EG2Attack           = pRegion->EG2Attack;
98                  KillImmediately();          ri.EG2Decay1           = pRegion->EG2Decay1;
99                  return -1;          ri.EG2Decay2           = pRegion->EG2Decay2;
100              }          ri.EG2Sustain          = pRegion->EG2Sustain;
101              dmsg(4,("Disk voice launched (cached samples: %d, total Samples: %d, MaxRAMPos: %d, RAMLooping: %s)\n", cachedsamples, pSample->SamplesTotal, MaxRAMPos, (RAMLoop) ? "yes" : "no"));          ri.EG2InfiniteSustain  = pRegion->EG2InfiniteSustain;
102          }          ri.EG2Release          = pRegion->EG2Release;
         else { // RAM only voice  
             MaxRAMPos = cachedsamples;  
             RAMLoop = (pDimRgn->SampleLoops != 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       = loopinfo.LoopStart;  
             loop.uiEnd         = loopinfo.LoopStart + loopinfo.LoopLength;  
             loop.uiSize        = loopinfo.LoopLength;  
         }  
   
         // calculate initial pitch value  
         {  
             double pitchbasecents = pEngineChannel->pInstrument->FineTune + pDimRgn->FineTune + pEngine->ScaleTuning[MIDIKey % 12];  
   
             // GSt behaviour: maximum transpose up is 40 semitones. If  
             // MIDI key is more than 40 semitones above unity note,  
             // the transpose is not done.  
             if (pDimRgn->PitchTrack && (MIDIKey - (int) pDimRgn->UnityNote) < 40) pitchbasecents += (MIDIKey - (int) pDimRgn->UnityNote) * 100;  
   
             this->PitchBase = RTMath::CentsToFreqRatioUnlimited(pitchbasecents) * (double(pSample->SamplesPerSecond) / double(pEngine->SampleRate));  
             this->PitchBendRange = 1.0 / 8192.0 * 100.0 * pEngineChannel->pInstrument->PitchbendRange;  
             this->PitchBend = RTMath::CentsToFreqRatio(PitchBend * PitchBendRange);  
         }  
   
         // 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 = pEngineChannel->ControllerTable[128];  
                     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->MidiVolume * 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 = pEngineChannel->ControllerTable[128];  
                     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;  
   
             // calculate influence of EG2 controller on EG2's parameters  
             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_min,  
                                lfo1_internal_depth,  
                                pDimRgn->LFO1ControlDepth,  
                                pDimRgn->LFO1FlipPhase,  
                                pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);  
                 pLFO1->update(pLFO1->ExtController ? pEngineChannel->ControllerTable[pLFO1->ExtController] : 0);  
             }  
         }  
109    
110            ri.ReleaseTriggerDecay = 0.01053 * (256 >> pRegion->ReleaseTriggerDecay);
111    
112          // setup LFO 2 (VCF Cutoff LFO)          return ri;
113          {      }
             uint16_t lfo2_internal_depth;  
             switch (pDimRgn->LFO2Controller) {  
                 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);  
             }  
         }  
   
   
         // setup LFO 3 (VCO LFO)  
         {  
             uint16_t lfo3_internal_depth;  
             switch (pDimRgn->LFO3Controller) {  
                 case ::gig::lfo3_ctrl_internal:  
                     lfo3_internal_depth  = pDimRgn->LFO3InternalDepth;  
                     pLFO3->ExtController = 0; // no external controller  
                     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 = 128;  
                     bLFO3Enabled         = true;  
                     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 = 128;  
                     bLFO3Enabled         = (lfo3_internal_depth > 0 || pDimRgn->LFO3ControlDepth > 0);  
                     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);  
             }  
         }  
   
   
         #if CONFIG_FORCE_FILTER  
         const bool bUseFilter = true;  
         #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:  
                     VCFCutoffCtrl.controller = 128;  
                     break;  
                 case ::gig::vcf_cutoff_ctrl_none:  
                 default:  
                     VCFCutoffCtrl.controller = 0;  
                     break;  
             }  
             #endif // CONFIG_OVERRIDE_CUTOFF_CTRL  
   
             #ifdef CONFIG_OVERRIDE_RESONANCE_CTRL  
             VCFResonanceCtrl.controller = CONFIG_OVERRIDE_RESONANCE_CTRL;  
             #else // use the one defined in the instrument file  
             switch (pDimRgn->VCFResonanceController) {  
                 case ::gig::vcf_res_ctrl_genpurpose3:  
                     VCFResonanceCtrl.controller = 18;  
                     break;  
                 case ::gig::vcf_res_ctrl_genpurpose4:  
                     VCFResonanceCtrl.controller = 19;  
                     break;  
                 case ::gig::vcf_res_ctrl_genpurpose5:  
                     VCFResonanceCtrl.controller = 80;  
                     break;  
                 case ::gig::vcf_res_ctrl_genpurpose6:  
                     VCFResonanceCtrl.controller = 81;  
                     break;  
                 case ::gig::vcf_res_ctrl_none:  
                 default:  
                     VCFResonanceCtrl.controller = 0;  
             }  
             #endif // CONFIG_OVERRIDE_RESONANCE_CTRL  
114    
115              #ifndef CONFIG_OVERRIDE_FILTER_TYPE      Voice::InstrumentInfo Voice::GetInstrumentInfo() {
116              finalSynthesisParameters.filterLeft.SetType(pDimRgn->VCFType);          InstrumentInfo ii;
117              finalSynthesisParameters.filterRight.SetType(pDimRgn->VCFType);          ii.FineTune = GetGigEngineChannel()->pInstrument->FineTune;
118              #else // override filter type          ii.PitchbendRange = GetGigEngineChannel()->pInstrument->PitchbendRange;
             finalSynthesisParameters.filterLeft.SetType(CONFIG_OVERRIDE_FILTER_TYPE);  
             finalSynthesisParameters.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)  
             }  
             CutoffBase = cutoff;  
119    
120              int cvalue;          return ii;
121              if (VCFCutoffCtrl.controller) {      }
                 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);  
             if (cutoff > 127.0f) cutoff = 127.0f;  
122    
123              // calculate resonance      double Voice::GetSampleAttenuation() {
124              float resonance = (float) (VCFResonanceCtrl.controller ? VCFResonanceCtrl.value : pDimRgn->VCFResonance);          return pRegion->SampleAttenuation;
125        }
126    
127              VCFCutoffCtrl.fvalue    = cutoff;      double Voice::GetVelocityAttenuation(uint8_t MIDIKeyVelocity) {
128              VCFResonanceCtrl.fvalue = resonance;          return pRegion->GetVelocityAttenuation(MIDIKeyVelocity);
129          }      }
         else {  
             VCFCutoffCtrl.controller    = 0;  
             VCFResonanceCtrl.controller = 0;  
         }  
130    
131          return 0; // success      double Voice::GetVelocityRelease(uint8_t MIDIKeyVelocity) {
132            return pRegion->GetVelocityRelease(MIDIKeyVelocity);
133      }      }
134    
135      /**      void Voice::ProcessCCEvent(RTList<Event>::Iterator& itEvent) {
136       *  Renders the audio data for this voice for the current audio fragment.          if (itEvent->Type == Event::type_control_change && itEvent->Param.CC.Controller) { // if (valid) MIDI control change event
137       *  The sample input data can either come from RAM (cached sample or sample              if (pRegion->AttenuationController.type == ::gig::attenuation_ctrl_t::type_controlchange &&
138       *  part) or directly from disk. The output signal will be rendered by                  itEvent->Param.CC.Controller == pRegion->AttenuationController.controller_number) {
139       *  resampling / interpolation. If this voice is a disk streaming voice and                  CrossfadeSmoother.update(AbstractEngine::CrossfadeCurve[CrossfadeAttenuation(itEvent->Param.CC.Value)]);
      *  the voice completely played back the cached RAM part of the sample, it  
      *  will automatically switch to disk playback for the next RenderAudio()  
      *  call.  
      *  
      *  @param Samples - number of samples to be rendered in this audio fragment cycle  
      */  
     void Voice::Render(uint Samples) {  
   
         // select default values for synthesis mode bits  
         SYNTHESIS_MODE_SET_LOOP(SynthesisMode, false);  
   
         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 = (sample_t*)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);  
140              }              }
141          }          }
142      }      }
143    
144      /**      void Voice::ProcessChannelPressureEvent(RTList<Event>::Iterator& itEvent) {
145       * Process given list of MIDI control change and pitch bend events for          if (itEvent->Type == Event::type_channel_pressure) { // if (valid) MIDI channel pressure (aftertouch) event
146       * the given time.              if (pRegion->AttenuationController.type == ::gig::attenuation_ctrl_t::type_channelaftertouch) {
147       *                  CrossfadeSmoother.update(AbstractEngine::CrossfadeCurve[CrossfadeAttenuation(itEvent->Param.ChannelPressure.Value)]);
      * @param itEvent - iterator pointing to the next event to be processed  
      * @param End     - youngest time stamp where processing should be stopped  
      */  
     void Voice::processCCEvents(RTList<Event>::Iterator& itEvent, uint End) {  
         for (; itEvent && itEvent->FragmentPos() <= End; ++itEvent) {  
             if (itEvent->Type == Event::type_control_change &&  
                 itEvent->Param.CC.Controller) { // if (valid) MIDI control change event  
                 if (itEvent->Param.CC.Controller == VCFCutoffCtrl.controller) {  
                     processCutoffEvent(itEvent);  
                 }  
                 if (itEvent->Param.CC.Controller == VCFResonanceCtrl.controller) {  
                     processResonanceEvent(itEvent);  
                 }  
                 if (itEvent->Param.CC.Controller == pLFO1->ExtController) {  
                     pLFO1->update(itEvent->Param.CC.Value);  
                 }  
                 if (itEvent->Param.CC.Controller == pLFO2->ExtController) {  
                     pLFO2->update(itEvent->Param.CC.Value);  
                 }  
                 if (itEvent->Param.CC.Controller == pLFO3->ExtController) {  
                     pLFO3->update(itEvent->Param.CC.Value);  
                 }  
                 if (pDimRgn->AttenuationController.type == ::gig::attenuation_ctrl_t::type_controlchange &&  
                     itEvent->Param.CC.Controller == pDimRgn->AttenuationController.controller_number) {  
                     CrossfadeSmoother.update(Engine::CrossfadeCurve[CrossfadeAttenuation(itEvent->Param.CC.Value)]);  
                 }  
                 if (itEvent->Param.CC.Controller == 7) { // volume  
                     VolumeSmoother.update(Engine::VolumeCurve[itEvent->Param.CC.Value]);  
                 } else if (itEvent->Param.CC.Controller == 10) { // panpot  
                     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);  
148              }              }
149          }          }
150      }      }
151    
152      void Voice::processPitchEvent(RTList<Event>::Iterator& itEvent) {      void Voice::ProcessPolyphonicKeyPressureEvent(RTList<Event>::Iterator& itEvent) {
153          PitchBend = RTMath::CentsToFreqRatio(itEvent->Param.Pitch.Pitch * PitchBendRange);          // Not used so far
154      }      }
155    
156      void Voice::processCutoffEvent(RTList<Event>::Iterator& itEvent) {      void Voice::ProcessCutoffEvent(RTList<Event>::Iterator& itEvent) {
157          int ccvalue = itEvent->Param.CC.Value;          int ccvalue = itEvent->Param.CC.Value;
158          if (VCFCutoffCtrl.value == ccvalue) return;          if (VCFCutoffCtrl.value == ccvalue) return;
159          VCFCutoffCtrl.value == ccvalue;          VCFCutoffCtrl.value = ccvalue;
160          if (pDimRgn->VCFCutoffControllerInvert)  ccvalue = 127 - ccvalue;          if (pRegion->VCFCutoffControllerInvert)  ccvalue = 127 - ccvalue;
161          if (ccvalue < pDimRgn->VCFVelocityScale) ccvalue = pDimRgn->VCFVelocityScale;          if (ccvalue < pRegion->VCFVelocityScale) ccvalue = pRegion->VCFVelocityScale;
162          float cutoff = CutoffBase * float(ccvalue);          float cutoff = CutoffBase * float(ccvalue);
163          if (cutoff > 127.0f) cutoff = 127.0f;          if (cutoff > 127.0f) cutoff = 127.0f;
164    
# Line 766  namespace LinuxSampler { namespace gig { Line 166  namespace LinuxSampler { namespace gig {
166          fFinalCutoff = cutoff;          fFinalCutoff = cutoff;
167      }      }
168    
169      void Voice::processResonanceEvent(RTList<Event>::Iterator& itEvent) {      double Voice::CalculateCrossfadeVolume(uint8_t MIDIKeyVelocity) {
170          // convert absolute controller value to differential          float crossfadeVolume;
171          const int ctrldelta = itEvent->Param.CC.Value - VCFResonanceCtrl.value;          switch (pRegion->AttenuationController.type) {
172          VCFResonanceCtrl.value = itEvent->Param.CC.Value;              case ::gig::attenuation_ctrl_t::type_channelaftertouch:
173          const float resonancedelta = (float) ctrldelta;                  crossfadeVolume = Engine::CrossfadeCurve[CrossfadeAttenuation(GetGigEngineChannel()->ControllerTable[128])];
174          fFinalResonance += resonancedelta;                  break;
175          // needed for initialization of parameter              case ::gig::attenuation_ctrl_t::type_velocity:
176          VCFResonanceCtrl.fvalue = itEvent->Param.CC.Value;                  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       *  Synthesizes the current audio fragment for this voice.                  break;
181       *              case ::gig::attenuation_ctrl_t::type_none: // no crossfade defined
182       *  @param Samples - number of sample points to be rendered in this audio              default:
183       *                   fragment cycle                  crossfadeVolume = 1.0f;
      *  @param pSrc    - pointer to input sample data  
      *  @param Skip    - number of sample points to skip in output buffer  
      */  
     void Voice::Synthesize(uint Samples, sample_t* pSrc, uint Skip) {  
         finalSynthesisParameters.pOutLeft  = &pEngineChannel->pChannelLeft->Buffer()[Skip];  
         finalSynthesisParameters.pOutRight = &pEngineChannel->pChannelRight->Buffer()[Skip];  
         finalSynthesisParameters.pSrc      = pSrc;  
   
         RTList<Event>::Iterator itCCEvent = pEngineChannel->pEvents->first();  
         RTList<Event>::Iterator itNoteEvent = pEngineChannel->pMIDIKeyInfo[MIDIKey].pEvents->first();  
   
         if (itTriggerEvent) { // skip events that happened before this voice was triggered  
             while (itCCEvent && itCCEvent->FragmentPos() <= Skip) ++itCCEvent;  
             // we can't simply compare the timestamp here, because note events  
             // might happen on the same time stamp, so we have to deal on the  
             // actual sequence the note events arrived instead (see bug #112)  
             for (; itNoteEvent; ++itNoteEvent) {  
                 if (itTriggerEvent == itNoteEvent) {  
                     ++itNoteEvent;  
                     break;  
                 }  
             }  
184          }          }
185    
186          uint killPos;          return crossfadeVolume;
187          if (itKillEvent) {      }
188              int maxFadeOutPos = Samples - pEngine->MinFadeOutSamples;  
189              if (maxFadeOutPos < 0) {      double Voice::GetEG1ControllerValue(uint8_t MIDIKeyVelocity) {
190                  // There's not enough space in buffer to do a fade out          double eg1controllervalue = 0;
191                  // from max volume (this can only happen for audio          switch (pRegion->EG1Controller.type) {
192                  // drivers that use Samples < MaxSamplesPerCycle).              case ::gig::eg1_ctrl_t::type_none: // no controller defined
193                  // End the EG1 here, at pos 0, with a shorter max fade                  eg1controllervalue = 0;
194                  // out time.                  break;
195                  EG1.enterFadeOutStage(Samples / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);              case ::gig::eg1_ctrl_t::type_channelaftertouch:
196                  itKillEvent = Pool<Event>::Iterator();                  eg1controllervalue = GetGigEngineChannel()->ControllerTable[128];
197              } else {                  break;
198                  killPos = RTMath::Min(itKillEvent->FragmentPos(), maxFadeOutPos);              case ::gig::eg1_ctrl_t::type_velocity:
199              }                  eg1controllervalue = MIDIKeyVelocity;
200                    break;
201                case ::gig::eg1_ctrl_t::type_controlchange: // MIDI control change controller
202                    eg1controllervalue = GetGigEngineChannel()->ControllerTable[pRegion->EG1Controller.controller_number];
203                    break;
204          }          }
205            if (pRegion->EG1ControllerInvert) eg1controllervalue = 127 - eg1controllervalue;
206    
207          uint i = Skip;          return eg1controllervalue;
208          while (i < Samples) {      }
             int iSubFragmentEnd = RTMath::Min(i + CONFIG_DEFAULT_SUBFRAGMENT_SIZE, Samples);  
   
             // initialize all final synthesis parameters  
             fFinalCutoff    = VCFCutoffCtrl.fvalue;  
             fFinalResonance = VCFResonanceCtrl.fvalue;  
   
             // process MIDI control change and pitchbend events for this subfragment  
             processCCEvents(itCCEvent, iSubFragmentEnd);  
   
             finalSynthesisParameters.fFinalPitch = PitchBase * PitchBend;  
             float fFinalVolume = VolumeSmoother.render() * CrossfadeSmoother.render();  
 #ifdef CONFIG_PROCESS_MUTED_CHANNELS  
             if (pEngineChannel->GetMute()) fFinalVolume = 0;  
 #endif  
   
             // process transition events (note on, note off & sustain pedal)  
             processTransitionEvents(itNoteEvent, iSubFragmentEnd);  
   
             // if the voice was killed in this subfragment, or if the  
             // filter EG is finished, switch EG1 to fade out stage  
             if ((itKillEvent && killPos <= iSubFragmentEnd) ||  
                 (SYNTHESIS_MODE_GET_FILTER(SynthesisMode) &&  
                  EG2.getSegmentType() == EGADSR::segment_end)) {  
                 EG1.enterFadeOutStage();  
                 itKillEvent = Pool<Event>::Iterator();  
             }  
209    
210              // process envelope generators      Voice::EGInfo Voice::CalculateEG1ControllerInfluence(double eg1ControllerValue) {
211              switch (EG1.getSegmentType()) {          EGInfo eg;
212                  case EGADSR::segment_lin:          // (eg1attack is different from the others)
213                      fFinalVolume *= EG1.processLin();          if (pRegion->EG1Attack < 1e-8 && // attack in gig == 0
214                      break;              (pRegion->EG1ControllerAttackInfluence == 0 ||
215                  case EGADSR::segment_exp:               eg1ControllerValue <= 10)) { // strange GSt special case
216                      fFinalVolume *= EG1.processExp();              eg.Attack = 0; // this will force the attack to be 0 in the call to EG1.trigger
217                      break;          } else {
218                  case EGADSR::segment_end:              eg.Attack  = (pRegion->EG1ControllerAttackInfluence)  ?
219                      fFinalVolume *= EG1.getLevel();                  1 + 0.031 * (double) (pRegion->EG1ControllerAttackInfluence == 1 ?
220                      break; // noop                                        1 : 1 << pRegion->EG1ControllerAttackInfluence) * eg1ControllerValue : 1.0;
221              }          }
222              switch (EG2.getSegmentType()) {          eg.Decay   = (pRegion->EG1ControllerDecayInfluence)   ? 1 + 0.00775 * (double) (1 << pRegion->EG1ControllerDecayInfluence)   * eg1ControllerValue : 1.0;
223                  case EGADSR::segment_lin:          eg.Release = (pRegion->EG1ControllerReleaseInfluence) ? 1 + 0.00775 * (double) (1 << pRegion->EG1ControllerReleaseInfluence) * eg1ControllerValue : 1.0;
224                      fFinalCutoff *= EG2.processLin();  
225                      break;          return eg;
226                  case EGADSR::segment_exp:      }
227                      fFinalCutoff *= EG2.processExp();  
228                      break;      double Voice::GetEG2ControllerValue(uint8_t MIDIKeyVelocity) {
229                  case EGADSR::segment_end:          double eg2controllervalue = 0;
230                      fFinalCutoff *= EG2.getLevel();          switch (pRegion->EG2Controller.type) {
231                      break; // noop              case ::gig::eg2_ctrl_t::type_none: // no controller defined
232              }                  eg2controllervalue = 0;
233              if (EG3.active()) finalSynthesisParameters.fFinalPitch *= EG3.render();                  break;
234                case ::gig::eg2_ctrl_t::type_channelaftertouch:
235                    eg2controllervalue = GetGigEngineChannel()->ControllerTable[128];
236                    break;
237                case ::gig::eg2_ctrl_t::type_velocity:
238                    eg2controllervalue = MIDIKeyVelocity;
239                    break;
240                case ::gig::eg2_ctrl_t::type_controlchange: // MIDI control change controller
241                    eg2controllervalue = GetGigEngineChannel()->ControllerTable[pRegion->EG2Controller.controller_number];
242                    break;
243            }
244            if (pRegion->EG2ControllerInvert) eg2controllervalue = 127 - eg2controllervalue;
245    
246              // process low frequency oscillators          return eg2controllervalue;
247              if (bLFO1Enabled) fFinalVolume *= (1.0f - pLFO1->render());      }
             if (bLFO2Enabled) fFinalCutoff *= pLFO2->render();  
             if (bLFO3Enabled) finalSynthesisParameters.fFinalPitch *= RTMath::CentsToFreqRatio(pLFO3->render());  
   
             // limit the pitch so we don't read outside the buffer  
             finalSynthesisParameters.fFinalPitch = RTMath::Min(finalSynthesisParameters.fFinalPitch, float(1 << CONFIG_MAX_PITCH));  
   
             // if filter enabled then update filter coefficients  
             if (SYNTHESIS_MODE_GET_FILTER(SynthesisMode)) {  
                 finalSynthesisParameters.filterLeft.SetParameters(fFinalCutoff, fFinalResonance, pEngine->SampleRate);  
                 finalSynthesisParameters.filterRight.SetParameters(fFinalCutoff, fFinalResonance, pEngine->SampleRate);  
             }  
248    
249              // do we need resampling?      Voice::EGInfo Voice::CalculateEG2ControllerInfluence(double eg2ControllerValue) {
250              const float __PLUS_ONE_CENT  = 1.000577789506554859250142541782224725466f;          EGInfo eg;
251              const float __MINUS_ONE_CENT = 0.9994225441413807496009516495583113737666f;          eg.Attack  = (pRegion->EG2ControllerAttackInfluence)  ? 1 + 0.00775 * (double) (1 << pRegion->EG2ControllerAttackInfluence)  * eg2ControllerValue : 1.0;
252              const bool bResamplingRequired = !(finalSynthesisParameters.fFinalPitch <= __PLUS_ONE_CENT &&          eg.Decay   = (pRegion->EG2ControllerDecayInfluence)   ? 1 + 0.00775 * (double) (1 << pRegion->EG2ControllerDecayInfluence)   * eg2ControllerValue : 1.0;
253                                                 finalSynthesisParameters.fFinalPitch >= __MINUS_ONE_CENT);          eg.Release = (pRegion->EG2ControllerReleaseInfluence) ? 1 + 0.00775 * (double) (1 << pRegion->EG2ControllerReleaseInfluence) * eg2ControllerValue : 1.0;
             SYNTHESIS_MODE_SET_INTERPOLATE(SynthesisMode, bResamplingRequired);  
   
             // prepare final synthesis parameters structure  
             finalSynthesisParameters.uiToGo            = iSubFragmentEnd - i;  
 #ifdef CONFIG_INTERPOLATE_VOLUME  
             finalSynthesisParameters.fFinalVolumeDeltaLeft  =  
                 (fFinalVolume * VolumeLeft  * PanLeftSmoother.render() -  
                  finalSynthesisParameters.fFinalVolumeLeft) / finalSynthesisParameters.uiToGo;  
             finalSynthesisParameters.fFinalVolumeDeltaRight =  
                 (fFinalVolume * VolumeRight * PanRightSmoother.render() -  
                  finalSynthesisParameters.fFinalVolumeRight) / finalSynthesisParameters.uiToGo;  
 #else  
             finalSynthesisParameters.fFinalVolumeLeft  =  
                 fFinalVolume * VolumeLeft  * PanLeftSmoother.render();  
             finalSynthesisParameters.fFinalVolumeRight =  
                 fFinalVolume * VolumeRight * PanRightSmoother.render();  
 #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 (pDimRgn->SampleLoops && Pos <= pDimRgn->pSampleLoops[0].LoopStart && pDimRgn->pSampleLoops[0].LoopStart < newPos) {  
                     EG1.update(EGADSR::event_hold_end, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);  
                 }  
254    
255                  EG1.increment(1);          return eg;
256                  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  
257    
258              Pos = newPos;      void Voice::InitLFO1() {
259              i = iSubFragmentEnd;          uint16_t lfo1_internal_depth;
260            switch (pRegion->LFO1Controller) {
261                case ::gig::lfo1_ctrl_internal:
262                    lfo1_internal_depth  = pRegion->LFO1InternalDepth;
263                    pLFO1->ExtController = 0; // no external controller
264                    bLFO1Enabled         = (lfo1_internal_depth > 0);
265                    break;
266                case ::gig::lfo1_ctrl_modwheel:
267                    lfo1_internal_depth  = 0;
268                    pLFO1->ExtController = 1; // MIDI controller 1
269                    bLFO1Enabled         = (pRegion->LFO1ControlDepth > 0);
270                    break;
271                case ::gig::lfo1_ctrl_breath:
272                    lfo1_internal_depth  = 0;
273                    pLFO1->ExtController = 2; // MIDI controller 2
274                    bLFO1Enabled         = (pRegion->LFO1ControlDepth > 0);
275                    break;
276                case ::gig::lfo1_ctrl_internal_modwheel:
277                    lfo1_internal_depth  = pRegion->LFO1InternalDepth;
278                    pLFO1->ExtController = 1; // MIDI controller 1
279                    bLFO1Enabled         = (lfo1_internal_depth > 0 || pRegion->LFO1ControlDepth > 0);
280                    break;
281                case ::gig::lfo1_ctrl_internal_breath:
282                    lfo1_internal_depth  = pRegion->LFO1InternalDepth;
283                    pLFO1->ExtController = 2; // MIDI controller 2
284                    bLFO1Enabled         = (lfo1_internal_depth > 0 || pRegion->LFO1ControlDepth > 0);
285                    break;
286                default:
287                    lfo1_internal_depth  = 0;
288                    pLFO1->ExtController = 0; // no external controller
289                    bLFO1Enabled         = false;
290            }
291            if (bLFO1Enabled) {
292                pLFO1->trigger(fromGigLfoWave(pRegion->LFO1WaveForm),
293                               pRegion->LFO1Frequency,
294                               pRegion->LFO1Phase,
295                               LFO::start_level_mid, // see https://sourceforge.net/p/linuxsampler/mailman/linuxsampler-devel/thread/2189307.cNP0Xbctxq%40silver/#msg36774029
296                               lfo1_internal_depth,
297                               pRegion->LFO1ControlDepth,
298                               pRegion->LFO1FlipPhase,
299                               pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
300                pLFO1->updateByMIDICtrlValue(pLFO1->ExtController ? GetGigEngineChannel()->ControllerTable[pLFO1->ExtController] : 0);
301                pLFO1->setScriptDepthFactor(
302                    pNote->Override.AmpLFODepth.Value,
303                    pNote->Override.AmpLFODepth.Final
304                );
305                if (pNote->Override.AmpLFOFreq.isFinal())
306                    pLFO1->setScriptFrequencyFinal(
307                        pNote->Override.AmpLFOFreq.Value, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE
308                    );
309                else
310                    pLFO1->setScriptFrequencyFactor(
311                        pNote->Override.AmpLFOFreq.Value, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE
312                    );
313          }          }
314      }      }
315    
316      /** @brief Update current portamento position.      void Voice::InitLFO2() {
317       *          uint16_t lfo2_internal_depth;
318       * Will be called when portamento mode is enabled to get the final          switch (pRegion->LFO2Controller) {
319       * portamento position of this active voice from where the next voice(s)              case ::gig::lfo2_ctrl_internal:
320       * might continue to slide on.                  lfo2_internal_depth  = pRegion->LFO2InternalDepth;
321       *                  pLFO2->ExtController = 0; // no external controller
322       * @param itNoteOffEvent - event which causes this voice to die soon                  bLFO2Enabled         = (lfo2_internal_depth > 0);
323       */                  break;
324      void Voice::UpdatePortamentoPos(Pool<Event>::Iterator& itNoteOffEvent) {              case ::gig::lfo2_ctrl_modwheel:
325          const float fFinalEG3Level = EG3.level(itNoteOffEvent->FragmentPos());                  lfo2_internal_depth  = 0;
326          pEngineChannel->PortamentoPos = (float) MIDIKey + RTMath::FreqRatioToCents(fFinalEG3Level) * 0.01f;                  pLFO2->ExtController = 1; // MIDI controller 1
327      }                  bLFO2Enabled         = (pRegion->LFO2ControlDepth > 0);
328                    break;
329      /**              case ::gig::lfo2_ctrl_foot:
330       *  Immediately kill the voice. This method should not be used to kill                  lfo2_internal_depth  = 0;
331       *  a normal, active voice, because it doesn't take care of things like                  pLFO2->ExtController = 4; // MIDI controller 4
332       *  fading down the volume level to avoid clicks and regular processing                  bLFO2Enabled         = (pRegion->LFO2ControlDepth > 0);
333       *  until the kill event actually occured!                  break;
334       *              case ::gig::lfo2_ctrl_internal_modwheel:
335       * If it's necessary to know when the voice's disk stream was actually                  lfo2_internal_depth  = pRegion->LFO2InternalDepth;
336       * deleted, then one can set the optional @a bRequestNotification                  pLFO2->ExtController = 1; // MIDI controller 1
337       * parameter and this method will then return the handle of the disk                  bLFO2Enabled         = (lfo2_internal_depth > 0 || pRegion->LFO2ControlDepth > 0);
338       * stream (unique identifier) and one can use this handle to poll the                  break;
339       * disk thread if this stream has been deleted. In any case this method              case ::gig::lfo2_ctrl_internal_foot:
340       * will return immediately and will not block until the stream actually                  lfo2_internal_depth  = pRegion->LFO2InternalDepth;
341       * was deleted.                  pLFO2->ExtController = 4; // MIDI controller 4
342       *                  bLFO2Enabled         = (lfo2_internal_depth > 0 || pRegion->LFO2ControlDepth > 0);
343       * @param bRequestNotification - (optional) whether the disk thread shall                  break;
344       *                                provide a notification once it deleted              default:
345       *                               the respective disk stream                  lfo2_internal_depth  = 0;
346       *                               (default=false)                  pLFO2->ExtController = 0; // no external controller
347       * @returns handle to the voice's disk stream or @c Stream::INVALID_HANDLE                  bLFO2Enabled         = false;
348       *          if the voice did not use a disk stream at all          }
349       * @see Kill()          if (bLFO2Enabled) {
350       */              pLFO2->trigger(fromGigLfoWave(pRegion->LFO2WaveForm),
351      Stream::Handle Voice::KillImmediately(bool bRequestNotification) {                             pRegion->LFO2Frequency,
352          Stream::Handle hStream = Stream::INVALID_HANDLE;                             pRegion->LFO2Phase,
353          if (DiskVoice && DiskStreamRef.State != Stream::state_unused) {                             LFO::start_level_mid, // see https://sourceforge.net/p/linuxsampler/mailman/linuxsampler-devel/thread/2189307.cNP0Xbctxq%40silver/#msg36774029
354              pDiskThread->OrderDeletionOfStream(&DiskStreamRef, bRequestNotification);                             lfo2_internal_depth,
355              hStream = DiskStreamRef.hStream;                             pRegion->LFO2ControlDepth,
356          }                             pRegion->LFO2FlipPhase,
357          Reset();                             pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
358          return hStream;              pLFO2->updateByMIDICtrlValue(pLFO2->ExtController ? GetGigEngineChannel()->ControllerTable[pLFO2->ExtController] : 0);
359      }              pLFO2->setScriptDepthFactor(
360                    pNote->Override.CutoffLFODepth.Value,
361      /**                  pNote->Override.CutoffLFODepth.Final
362       *  Kill the voice in regular sense. Let the voice render audio until              );
363       *  the kill event actually occured and then fade down the volume level              if (pNote->Override.CutoffLFOFreq.isFinal())
364       *  very quickly and let the voice die finally. Unlike a normal release                  pLFO2->setScriptFrequencyFinal(pNote->Override.CutoffLFOFreq.Value, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
365       *  of a voice, a kill process cannot be cancalled and is therefore              else
366       *  usually used for voice stealing and key group conflicts.                  pLFO2->setScriptFrequencyFactor(pNote->Override.CutoffLFOFreq.Value, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
367       *          }
368       *  @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  
369    
370          if (itTriggerEvent && itKillEvent->FragmentPos() <= itTriggerEvent->FragmentPos()) return;      void Voice::InitLFO3() {
371          this->itKillEvent = itKillEvent;          uint16_t lfo3_internal_depth;
372            switch (pRegion->LFO3Controller) {
373                case ::gig::lfo3_ctrl_internal:
374                    lfo3_internal_depth  = pRegion->LFO3InternalDepth;
375                    pLFO3->ExtController = 0; // no external controller
376                    bLFO3Enabled         = (lfo3_internal_depth > 0);
377                    break;
378                case ::gig::lfo3_ctrl_modwheel:
379                    lfo3_internal_depth  = 0;
380                    pLFO3->ExtController = 1; // MIDI controller 1
381                    bLFO3Enabled         = (pRegion->LFO3ControlDepth > 0);
382                    break;
383                case ::gig::lfo3_ctrl_aftertouch:
384                    lfo3_internal_depth  = 0;
385                    pLFO3->ExtController = CTRL_TABLE_IDX_AFTERTOUCH;
386                    bLFO3Enabled         = true;
387                    break;
388                case ::gig::lfo3_ctrl_internal_modwheel:
389                    lfo3_internal_depth  = pRegion->LFO3InternalDepth;
390                    pLFO3->ExtController = 1; // MIDI controller 1
391                    bLFO3Enabled         = (lfo3_internal_depth > 0 || pRegion->LFO3ControlDepth > 0);
392                    break;
393                case ::gig::lfo3_ctrl_internal_aftertouch:
394                    lfo3_internal_depth  = pRegion->LFO3InternalDepth;
395                    pLFO3->ExtController = CTRL_TABLE_IDX_AFTERTOUCH;
396                    bLFO3Enabled         = (lfo3_internal_depth > 0 || pRegion->LFO3ControlDepth > 0);
397                    break;
398                default:
399                    lfo3_internal_depth  = 0;
400                    pLFO3->ExtController = 0; // no external controller
401                    bLFO3Enabled         = false;
402            }
403            if (bLFO3Enabled) {
404                pLFO3->trigger(fromGigLfoWave(pRegion->LFO3WaveForm),
405                               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        float Voice::CalculateCutoffBase(uint8_t MIDIKeyVelocity) {
425            float cutoff = pRegion->GetVelocityCutoff(MIDIKeyVelocity);
426            if (pRegion->VCFKeyboardTracking) {
427                cutoff *= RTMath::CentsToFreqRatioUnlimited((MIDIKey() - pRegion->VCFKeyboardTrackingBreakpoint) * 100);
428            }
429            return cutoff;
430        }
431    
432        /// 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            // the filter implementations of the original GSt filter types take an
456            // 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        uint8_t Voice::GetVCFResonanceCtrl() {
512            uint8_t ctrl;
513            switch (pRegion->VCFResonanceController) {
514                case ::gig::vcf_res_ctrl_genpurpose3:
515                    ctrl = 18;
516                    break;
517                case ::gig::vcf_res_ctrl_genpurpose4:
518                    ctrl = 19;
519                    break;
520                case ::gig::vcf_res_ctrl_genpurpose5:
521                    ctrl = 80;
522                    break;
523                case ::gig::vcf_res_ctrl_genpurpose6:
524                    ctrl = 81;
525                    break;
526                case ::gig::vcf_res_ctrl_none:
527                default:
528                    ctrl = 0;
529            }
530    
531            return ctrl;
532        }
533    
534        void Voice::TriggerEG1(const EGInfo& egInfo, double velrelease, double velocityAttenuation, uint sampleRate, uint8_t velocity) {
535            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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