/[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 1857 by schoenebeck, Sat Mar 7 19:23:10 2009 UTC revision 2175 by persson, Mon Apr 25 08:12:36 2011 UTC
# Line 3  Line 3 
3   *   LinuxSampler - modular, streaming capable sampler                     *   *   LinuxSampler - modular, streaming capable sampler                     *
4   *                                                                         *   *                                                                         *
5   *   Copyright (C) 2003, 2004 by Benno Senoner and Christian Schoenebeck   *   *   Copyright (C) 2003, 2004 by Benno Senoner and Christian Schoenebeck   *
6   *   Copyright (C) 2005 - 2009 Christian Schoenebeck                       *   *   Copyright (C) 2005 - 2008 Christian Schoenebeck                       *
7     *   Copyright (C) 2009 - 2011 Christian Schoenebeck and Grigor Iliev      *
8   *                                                                         *   *                                                                         *
9   *   This program is free software; you can redistribute it and/or modify  *   *   This program is free software; you can redistribute it and/or modify  *
10   *   it under the terms of the GNU General Public License as published by  *   *   it under the terms of the GNU General Public License as published by  *
# Line 24  Line 25 
25  #include "../../common/Features.h"  #include "../../common/Features.h"
26  #include "Synthesizer.h"  #include "Synthesizer.h"
27  #include "Profiler.h"  #include "Profiler.h"
28    #include "Engine.h"
29    #include "EngineChannel.h"
30    
31  #include "Voice.h"  #include "Voice.h"
32    
33  namespace LinuxSampler { namespace gig {  namespace LinuxSampler { namespace gig {
34    
35      Voice::Voice() {      Voice::Voice() {
36          pEngine     = NULL;          pEngine = NULL;
37          pDiskThread = NULL;          pEG1 = &EG1;
38          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 (asm core is not supported ATM)  
         #if 0 // 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();  
39      }      }
40    
41      Voice::~Voice() {      Voice::~Voice() {
         if (pLFO1) delete pLFO1;  
         if (pLFO2) delete pLFO2;  
         if (pLFO3) delete pLFO3;  
42      }      }
43    
44      void Voice::SetEngine(Engine* pEngine) {      EngineChannel* Voice::GetGigEngineChannel() {
45          this->pEngine     = pEngine;          return static_cast<EngineChannel*>(pEngineChannel);
46          this->pDiskThread = pEngine->pDiskThread;      }
47    
48        void Voice::SetEngine(LinuxSampler::Engine* pEngine) {
49            Engine* engine = static_cast<Engine*>(pEngine);
50            this->pEngine     = engine;
51            this->pDiskThread = engine->pDiskThread;
52          dmsg(6,("Voice::SetEngine()\n"));          dmsg(6,("Voice::SetEngine()\n"));
53      }      }
54    
55      /**      Voice::SampleInfo Voice::GetSampleInfo() {
56       *  Initializes and triggers the voice, a disk stream will be launched if          SampleInfo si;
57       *  needed.          si.SampleRate       = pSample->SamplesPerSecond;
58       *          si.ChannelCount     = pSample->Channels;
59       *  @param pEngineChannel - engine channel on which this voice was ordered          si.FrameSize        = pSample->FrameSize;
60       *  @param itNoteOnEvent  - event that caused triggering of this voice          si.BitDepth         = pSample->BitDepth;
61       *  @param PitchBend      - MIDI detune factor (-8192 ... +8191)          si.TotalFrameCount  = 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);  
62    
63          // get starting crossfade volume level          si.HasLoops       = pRegion->SampleLoops;
64          float crossfadeVolume;          si.LoopStart      = (si.HasLoops) ? pRegion->pSampleLoops[0].LoopStart  : 0;
65          switch (pDimRgn->AttenuationController.type) {          si.LoopLength     = (si.HasLoops) ? pRegion->pSampleLoops[0].LoopLength : 0;
66              case ::gig::attenuation_ctrl_t::type_channelaftertouch:          si.LoopPlayCount  = pSample->LoopPlayCount;
67                  crossfadeVolume = Engine::CrossfadeCurve[CrossfadeAttenuation(pEngineChannel->ControllerTable[128])];          si.Unpitched      = !pRegion->PitchTrack;
                 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;  
         }  
68    
69          VolumeLeft  = volume * Engine::PanCurve[64 - pDimRgn->Pan];          return si;
70          VolumeRight = volume * Engine::PanCurve[64 + pDimRgn->Pan];      }
71    
72          float subfragmentRate = pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE;      Voice::RegionInfo Voice::GetRegionInfo() {
73          CrossfadeSmoother.trigger(crossfadeVolume, subfragmentRate);          RegionInfo ri;
74          VolumeSmoother.trigger(pEngineChannel->MidiVolume, subfragmentRate);          ri.UnityNote = pRegion->UnityNote;
75          PanLeftSmoother.trigger(pEngineChannel->GlobalPanLeft, subfragmentRate);          ri.FineTune  = pRegion->FineTune;
76          PanRightSmoother.trigger(pEngineChannel->GlobalPanRight, subfragmentRate);          ri.Pan       = pRegion->Pan;
77            ri.SampleStartOffset = pRegion->SampleStartOffset;
         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  
             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 = (pDimRgn->SampleLoops && (loopinfo.LoopStart + loopinfo.LoopLength) <= MaxRAMPos);  
   
             if (pDiskThread->OrderNewStream(&DiskStreamRef, pDimRgn, 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 = (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 = pDimRgn->FineTune + (int) 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::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 = 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;  
78    
79              // calculate influence of EG1 controller on EG1's parameters          ri.EG1PreAttack        = pRegion->EG1PreAttack;
80              // (eg1attack is different from the others)          ri.EG1Attack           = pRegion->EG1Attack;
81              double eg1attack  = (pDimRgn->EG1ControllerAttackInfluence)  ?          ri.EG1Hold             = pRegion->EG1Hold;
82                  1 + 0.031 * (double) (pDimRgn->EG1ControllerAttackInfluence == 1 ?          ri.EG1Decay1           = pRegion->EG1Decay1;
83                                        1 : 1 << pDimRgn->EG1ControllerAttackInfluence) * eg1controllervalue : 1.0;          ri.EG1Decay2           = pRegion->EG1Decay2;
84              double eg1decay   = (pDimRgn->EG1ControllerDecayInfluence)   ? 1 + 0.00775 * (double) (1 << pDimRgn->EG1ControllerDecayInfluence)   * eg1controllervalue : 1.0;          ri.EG1Sustain          = pRegion->EG1Sustain;
85              double eg1release = (pDimRgn->EG1ControllerReleaseInfluence) ? 1 + 0.00775 * (double) (1 << pDimRgn->EG1ControllerReleaseInfluence) * eg1controllervalue : 1.0;          ri.EG1InfiniteSustain  = pRegion->EG1InfiniteSustain;
86            ri.EG1Release          = pRegion->EG1Release;
             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;  
87    
88              // calculate influence of EG2 controller on EG2's parameters          ri.EG2PreAttack        = pRegion->EG2PreAttack;
89              double eg2attack  = (pDimRgn->EG2ControllerAttackInfluence)  ? 1 + 0.00775 * (double) (1 << pDimRgn->EG2ControllerAttackInfluence)  * eg2controllervalue : 1.0;          ri.EG2Attack           = pRegion->EG2Attack;
90              double eg2decay   = (pDimRgn->EG2ControllerDecayInfluence)   ? 1 + 0.00775 * (double) (1 << pDimRgn->EG2ControllerDecayInfluence)   * eg2controllervalue : 1.0;          ri.EG2Decay1           = pRegion->EG2Decay1;
91              double eg2release = (pDimRgn->EG2ControllerReleaseInfluence) ? 1 + 0.00775 * (double) (1 << pDimRgn->EG2ControllerReleaseInfluence) * eg2controllervalue : 1.0;          ri.EG2Decay2           = pRegion->EG2Decay2;
92            ri.EG2Sustain          = pRegion->EG2Sustain;
93              EG2.trigger(pDimRgn->EG2PreAttack,          ri.EG2InfiniteSustain  = pRegion->EG2InfiniteSustain;
94                          pDimRgn->EG2Attack * eg2attack,          ri.EG2Release          = pRegion->EG2Release;
                         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);  
             }  
         }  
95    
96            ri.EG3Attack     = pRegion->EG3Attack;
97            ri.EG3Depth      = pRegion->EG3Depth;
98            ri.VCFEnabled    = pRegion->VCFEnabled;
99            ri.VCFType       = Filter::vcf_type_t(pRegion->VCFType);
100            ri.VCFResonance  = pRegion->VCFResonance;
101    
102          // setup LFO 2 (VCF Cutoff LFO)          ri.ReleaseTriggerDecay = 0.01053 * (256 >> pRegion->ReleaseTriggerDecay);
         {  
             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);  
             }  
         }  
103    
104            return ri;
105        }
106    
107          // setup LFO 3 (VCO LFO)      Voice::InstrumentInfo Voice::GetInstrumentInfo() {
108          {          InstrumentInfo ii;
109              uint16_t lfo3_internal_depth;          ii.FineTune = GetGigEngineChannel()->pInstrument->FineTune;
110              switch (pDimRgn->LFO3Controller) {          ii.PitchbendRange = GetGigEngineChannel()->pInstrument->PitchbendRange;
                 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);  
             }  
         }  
111    
112            return ii;
113        }
114    
115          #if CONFIG_FORCE_FILTER      double Voice::GetSampleAttenuation() {
116          const bool bUseFilter = true;          return pRegion->SampleAttenuation;
117          #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  
118    
119              #ifdef CONFIG_OVERRIDE_RESONANCE_CTRL      double Voice::GetVelocityAttenuation(uint8_t MIDIKeyVelocity) {
120              VCFResonanceCtrl.controller = CONFIG_OVERRIDE_RESONANCE_CTRL;          return pRegion->GetVelocityAttenuation(MIDIKeyVelocity);
121              #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  
122    
123              #ifndef CONFIG_OVERRIDE_FILTER_TYPE      double Voice::GetVelocityRelease(uint8_t MIDIKeyVelocity) {
124              finalSynthesisParameters.filterLeft.SetType(pDimRgn->VCFType);          return pRegion->GetVelocityRelease(MIDIKeyVelocity);
125              finalSynthesisParameters.filterRight.SetType(pDimRgn->VCFType);      }
             #else // override filter type  
             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;  
126    
127              int cvalue;      void Voice::ProcessCCEvent(RTList<Event>::Iterator& itEvent) {
128              if (VCFCutoffCtrl.controller) {          if (itEvent->Type == Event::type_control_change && itEvent->Param.CC.Controller) { // if (valid) MIDI control change event
129                  cvalue = pEngineChannel->ControllerTable[VCFCutoffCtrl.controller];              if (pRegion->AttenuationController.type == ::gig::attenuation_ctrl_t::type_controlchange &&
130                  if (pDimRgn->VCFCutoffControllerInvert) cvalue = 127 - cvalue;                  itEvent->Param.CC.Controller == pRegion->AttenuationController.controller_number) {
131                  // VCFVelocityScale in this case means Minimum cutoff                  CrossfadeSmoother.update(AbstractEngine::CrossfadeCurve[CrossfadeAttenuation(itEvent->Param.CC.Value)]);
                 if (cvalue < pDimRgn->VCFVelocityScale) cvalue = pDimRgn->VCFVelocityScale;  
             }  
             else {  
                 cvalue = pDimRgn->VCFCutoff;  
132              }              }
133              cutoff *= float(cvalue);          }
134              if (cutoff > 127.0f) cutoff = 127.0f;      }
135    
136              // calculate resonance      void Voice::ProcessCutoffEvent(RTList<Event>::Iterator& itEvent) {
137              float resonance = (float) (VCFResonanceCtrl.controller ? VCFResonanceCtrl.value : pDimRgn->VCFResonance);          int ccvalue = itEvent->Param.CC.Value;
138            if (VCFCutoffCtrl.value == ccvalue) return;
139            VCFCutoffCtrl.value = ccvalue;
140            if (pRegion->VCFCutoffControllerInvert)  ccvalue = 127 - ccvalue;
141            if (ccvalue < pRegion->VCFVelocityScale) ccvalue = pRegion->VCFVelocityScale;
142            float cutoff = CutoffBase * float(ccvalue);
143            if (cutoff > 127.0f) cutoff = 127.0f;
144    
145              VCFCutoffCtrl.fvalue    = cutoff;          VCFCutoffCtrl.fvalue = cutoff; // needed for initialization of fFinalCutoff next time
146              VCFResonanceCtrl.fvalue = resonance;          fFinalCutoff = cutoff;
147          }      }
148          else {  
149              VCFCutoffCtrl.controller    = 0;      double Voice::CalculateCrossfadeVolume(uint8_t MIDIKeyVelocity) {
150              VCFResonanceCtrl.controller = 0;          float crossfadeVolume;
151            switch (pRegion->AttenuationController.type) {
152                case ::gig::attenuation_ctrl_t::type_channelaftertouch:
153                    crossfadeVolume = Engine::CrossfadeCurve[CrossfadeAttenuation(GetGigEngineChannel()->ControllerTable[128])];
154                    break;
155                case ::gig::attenuation_ctrl_t::type_velocity:
156                    crossfadeVolume = Engine::CrossfadeCurve[CrossfadeAttenuation(MIDIKeyVelocity)];
157                    break;
158                case ::gig::attenuation_ctrl_t::type_controlchange: //FIXME: currently not sample accurate
159                    crossfadeVolume = Engine::CrossfadeCurve[CrossfadeAttenuation(GetGigEngineChannel()->ControllerTable[pRegion->AttenuationController.controller_number])];
160                    break;
161                case ::gig::attenuation_ctrl_t::type_none: // no crossfade defined
162                default:
163                    crossfadeVolume = 1.0f;
164          }          }
165    
166          return 0; // success          return crossfadeVolume;
167      }      }
168    
169      /**      double Voice::GetEG1ControllerValue(uint8_t MIDIKeyVelocity) {
170       *  Renders the audio data for this voice for the current audio fragment.          double eg1controllervalue = 0;
171       *  The sample input data can either come from RAM (cached sample or sample          switch (pRegion->EG1Controller.type) {
172       *  part) or directly from disk. The output signal will be rendered by              case ::gig::eg1_ctrl_t::type_none: // no controller defined
173       *  resampling / interpolation. If this voice is a disk streaming voice and                  eg1controllervalue = 0;
174       *  the voice completely played back the cached RAM part of the sample, it                  break;
175       *  will automatically switch to disk playback for the next RenderAudio()              case ::gig::eg1_ctrl_t::type_channelaftertouch:
176       *  call.                  eg1controllervalue = GetGigEngineChannel()->ControllerTable[128];
177       *                  break;
178       *  @param Samples - number of samples to be rendered in this audio fragment cycle              case ::gig::eg1_ctrl_t::type_velocity:
179       */                  eg1controllervalue = MIDIKeyVelocity;
180      void Voice::Render(uint Samples) {                  break;
181                case ::gig::eg1_ctrl_t::type_controlchange: // MIDI control change controller
182          // select default values for synthesis mode bits                  eg1controllervalue = GetGigEngineChannel()->ControllerTable[pRegion->EG1Controller.controller_number];
183          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 = (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);  
             }  
184          }          }
185            if (pRegion->EG1ControllerInvert) eg1controllervalue = 127 - eg1controllervalue;
186    
187            return eg1controllervalue;
188      }      }
189    
190      /**      Voice::EGInfo Voice::CalculateEG1ControllerInfluence(double eg1ControllerValue) {
191       * Process given list of MIDI control change and pitch bend events for          EGInfo eg;
192       * the given time.          // (eg1attack is different from the others)
193       *          eg.Attack  = (pRegion->EG1ControllerAttackInfluence)  ?
194       * @param itEvent - iterator pointing to the next event to be processed              1 + 0.031 * (double) (pRegion->EG1ControllerAttackInfluence == 1 ?
195       * @param End     - youngest time stamp where processing should be stopped                                    1 : 1 << pRegion->EG1ControllerAttackInfluence) * eg1ControllerValue : 1.0;
196       */          eg.Decay   = (pRegion->EG1ControllerDecayInfluence)   ? 1 + 0.00775 * (double) (1 << pRegion->EG1ControllerDecayInfluence)   * eg1ControllerValue : 1.0;
197      void Voice::processCCEvents(RTList<Event>::Iterator& itEvent, uint End) {          eg.Release = (pRegion->EG1ControllerReleaseInfluence) ? 1 + 0.00775 * (double) (1 << pRegion->EG1ControllerReleaseInfluence) * eg1ControllerValue : 1.0;
198          for (; itEvent && itEvent->FragmentPos() <= End; ++itEvent) {  
199              if (itEvent->Type == Event::type_control_change &&          return eg;
                 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);  
             }  
         }  
200      }      }
201    
202      void Voice::processPitchEvent(RTList<Event>::Iterator& itEvent) {      double Voice::GetEG2ControllerValue(uint8_t MIDIKeyVelocity) {
203          const float pitch = RTMath::CentsToFreqRatio(((double) itEvent->Param.Pitch.Pitch / 8192.0) * 200.0); // +-two semitones = +-200 cents          double eg2controllervalue = 0;
204          finalSynthesisParameters.fFinalPitch *= pitch;          switch (pRegion->EG2Controller.type) {
205          PitchBend = pitch;              case ::gig::eg2_ctrl_t::type_none: // no controller defined
206                    eg2controllervalue = 0;
207                    break;
208                case ::gig::eg2_ctrl_t::type_channelaftertouch:
209                    eg2controllervalue = GetGigEngineChannel()->ControllerTable[128];
210                    break;
211                case ::gig::eg2_ctrl_t::type_velocity:
212                    eg2controllervalue = MIDIKeyVelocity;
213                    break;
214                case ::gig::eg2_ctrl_t::type_controlchange: // MIDI control change controller
215                    eg2controllervalue = GetGigEngineChannel()->ControllerTable[pRegion->EG2Controller.controller_number];
216                    break;
217            }
218            if (pRegion->EG2ControllerInvert) eg2controllervalue = 127 - eg2controllervalue;
219    
220            return eg2controllervalue;
221      }      }
222    
223      void Voice::processCutoffEvent(RTList<Event>::Iterator& itEvent) {      Voice::EGInfo Voice::CalculateEG2ControllerInfluence(double eg2ControllerValue) {
224          int ccvalue = itEvent->Param.CC.Value;          EGInfo eg;
225          if (VCFCutoffCtrl.value == ccvalue) return;          eg.Attack  = (pRegion->EG2ControllerAttackInfluence)  ? 1 + 0.00775 * (double) (1 << pRegion->EG2ControllerAttackInfluence)  * eg2ControllerValue : 1.0;
226          VCFCutoffCtrl.value == ccvalue;          eg.Decay   = (pRegion->EG2ControllerDecayInfluence)   ? 1 + 0.00775 * (double) (1 << pRegion->EG2ControllerDecayInfluence)   * eg2ControllerValue : 1.0;
227          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);  
         if (cutoff > 127.0f) cutoff = 127.0f;  
228    
229          VCFCutoffCtrl.fvalue = cutoff; // needed for initialization of fFinalCutoff next time          return eg;
         fFinalCutoff = cutoff;  
230      }      }
231    
232      void Voice::processResonanceEvent(RTList<Event>::Iterator& itEvent) {      void Voice::InitLFO1() {
233          // convert absolute controller value to differential          uint16_t lfo1_internal_depth;
234          const int ctrldelta = itEvent->Param.CC.Value - VCFResonanceCtrl.value;          switch (pRegion->LFO1Controller) {
235          VCFResonanceCtrl.value = itEvent->Param.CC.Value;              case ::gig::lfo1_ctrl_internal:
236          const float resonancedelta = (float) ctrldelta;                  lfo1_internal_depth  = pRegion->LFO1InternalDepth;
237          fFinalResonance += resonancedelta;                  pLFO1->ExtController = 0; // no external controller
238          // needed for initialization of parameter                  bLFO1Enabled         = (lfo1_internal_depth > 0);
239          VCFResonanceCtrl.fvalue = itEvent->Param.CC.Value;                  break;
240      }              case ::gig::lfo1_ctrl_modwheel:
241                    lfo1_internal_depth  = 0;
242      /**                  pLFO1->ExtController = 1; // MIDI controller 1
243       *  Synthesizes the current audio fragment for this voice.                  bLFO1Enabled         = (pRegion->LFO1ControlDepth > 0);
244       *                  break;
245       *  @param Samples - number of sample points to be rendered in this audio              case ::gig::lfo1_ctrl_breath:
246       *                   fragment cycle                  lfo1_internal_depth  = 0;
247       *  @param pSrc    - pointer to input sample data                  pLFO1->ExtController = 2; // MIDI controller 2
248       *  @param Skip    - number of sample points to skip in output buffer                  bLFO1Enabled         = (pRegion->LFO1ControlDepth > 0);
249       */                  break;
250      void Voice::Synthesize(uint Samples, sample_t* pSrc, uint Skip) {              case ::gig::lfo1_ctrl_internal_modwheel:
251          finalSynthesisParameters.pOutLeft  = &pEngineChannel->pChannelLeft->Buffer()[Skip];                  lfo1_internal_depth  = pRegion->LFO1InternalDepth;
252          finalSynthesisParameters.pOutRight = &pEngineChannel->pChannelRight->Buffer()[Skip];                  pLFO1->ExtController = 1; // MIDI controller 1
253          finalSynthesisParameters.pSrc      = pSrc;                  bLFO1Enabled         = (lfo1_internal_depth > 0 || pRegion->LFO1ControlDepth > 0);
254                    break;
255          RTList<Event>::Iterator itCCEvent = pEngineChannel->pEvents->first();              case ::gig::lfo1_ctrl_internal_breath:
256          RTList<Event>::Iterator itNoteEvent = pEngineChannel->pMIDIKeyInfo[MIDIKey].pEvents->first();                  lfo1_internal_depth  = pRegion->LFO1InternalDepth;
257                    pLFO1->ExtController = 2; // MIDI controller 2
258          if (itTriggerEvent) { // skip events that happened before this voice was triggered                  bLFO1Enabled         = (lfo1_internal_depth > 0 || pRegion->LFO1ControlDepth > 0);
259              while (itCCEvent && itCCEvent->FragmentPos() <= Skip) ++itCCEvent;                  break;
260              // we can't simply compare the timestamp here, because note events              default:
261              // might happen on the same time stamp, so we have to deal on the                  lfo1_internal_depth  = 0;
262              // actual sequence the note events arrived instead (see bug #112)                  pLFO1->ExtController = 0; // no external controller
263              for (; itNoteEvent; ++itNoteEvent) {                  bLFO1Enabled         = false;
264                  if (itTriggerEvent == itNoteEvent) {          }
265                      ++itNoteEvent;          if (bLFO1Enabled) {
266                      break;              pLFO1->trigger(pRegion->LFO1Frequency,
267                  }                             start_level_min,
268              }                             lfo1_internal_depth,
269                               pRegion->LFO1ControlDepth,
270                               pRegion->LFO1FlipPhase,
271                               pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
272                pLFO1->update(pLFO1->ExtController ? GetGigEngineChannel()->ControllerTable[pLFO1->ExtController] : 0);
273          }          }
274        }
275    
276          uint killPos;      void Voice::InitLFO2() {
277          if (itKillEvent) {          uint16_t lfo2_internal_depth;
278              int maxFadeOutPos = Samples - pEngine->MinFadeOutSamples;          switch (pRegion->LFO2Controller) {
279              if (maxFadeOutPos < 0) {              case ::gig::lfo2_ctrl_internal:
280                  // There's not enough space in buffer to do a fade out                  lfo2_internal_depth  = pRegion->LFO2InternalDepth;
281                  // from max volume (this can only happen for audio                  pLFO2->ExtController = 0; // no external controller
282                  // drivers that use Samples < MaxSamplesPerCycle).                  bLFO2Enabled         = (lfo2_internal_depth > 0);
283                  // End the EG1 here, at pos 0, with a shorter max fade                  break;
284                  // out time.              case ::gig::lfo2_ctrl_modwheel:
285                  EG1.enterFadeOutStage(Samples / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);                  lfo2_internal_depth  = 0;
286                  itKillEvent = Pool<Event>::Iterator();                  pLFO2->ExtController = 1; // MIDI controller 1
287              } else {                  bLFO2Enabled         = (pRegion->LFO2ControlDepth > 0);
288                  killPos = RTMath::Min(itKillEvent->FragmentPos(), maxFadeOutPos);                  break;
289              }              case ::gig::lfo2_ctrl_foot:
290                    lfo2_internal_depth  = 0;
291                    pLFO2->ExtController = 4; // MIDI controller 4
292                    bLFO2Enabled         = (pRegion->LFO2ControlDepth > 0);
293                    break;
294                case ::gig::lfo2_ctrl_internal_modwheel:
295                    lfo2_internal_depth  = pRegion->LFO2InternalDepth;
296                    pLFO2->ExtController = 1; // MIDI controller 1
297                    bLFO2Enabled         = (lfo2_internal_depth > 0 || pRegion->LFO2ControlDepth > 0);
298                    break;
299                case ::gig::lfo2_ctrl_internal_foot:
300                    lfo2_internal_depth  = pRegion->LFO2InternalDepth;
301                    pLFO2->ExtController = 4; // MIDI controller 4
302                    bLFO2Enabled         = (lfo2_internal_depth > 0 || pRegion->LFO2ControlDepth > 0);
303                    break;
304                default:
305                    lfo2_internal_depth  = 0;
306                    pLFO2->ExtController = 0; // no external controller
307                    bLFO2Enabled         = false;
308            }
309            if (bLFO2Enabled) {
310                pLFO2->trigger(pRegion->LFO2Frequency,
311                               start_level_max,
312                               lfo2_internal_depth,
313                               pRegion->LFO2ControlDepth,
314                               pRegion->LFO2FlipPhase,
315                               pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
316                pLFO2->update(pLFO2->ExtController ? GetGigEngineChannel()->ControllerTable[pLFO2->ExtController] : 0);
317          }          }
318        }
319    
320          uint i = Skip;      void Voice::InitLFO3() {
321          while (i < Samples) {          uint16_t lfo3_internal_depth;
322              int iSubFragmentEnd = RTMath::Min(i + CONFIG_DEFAULT_SUBFRAGMENT_SIZE, Samples);          switch (pRegion->LFO3Controller) {
323                case ::gig::lfo3_ctrl_internal:
324              // initialize all final synthesis parameters                  lfo3_internal_depth  = pRegion->LFO3InternalDepth;
325              finalSynthesisParameters.fFinalPitch = PitchBase * PitchBend;                  pLFO3->ExtController = 0; // no external controller
326              fFinalCutoff    = VCFCutoffCtrl.fvalue;                  bLFO3Enabled         = (lfo3_internal_depth > 0);
327              fFinalResonance = VCFResonanceCtrl.fvalue;                  break;
328                case ::gig::lfo3_ctrl_modwheel:
329              // process MIDI control change and pitchbend events for this subfragment                  lfo3_internal_depth  = 0;
330              processCCEvents(itCCEvent, iSubFragmentEnd);                  pLFO3->ExtController = 1; // MIDI controller 1
331                    bLFO3Enabled         = (pRegion->LFO3ControlDepth > 0);
332              float fFinalVolume = VolumeSmoother.render() * CrossfadeSmoother.render();                  break;
333  #ifdef CONFIG_PROCESS_MUTED_CHANNELS              case ::gig::lfo3_ctrl_aftertouch:
334              if (pEngineChannel->GetMute()) fFinalVolume = 0;                  lfo3_internal_depth  = 0;
335  #endif                  pLFO3->ExtController = 128;
336                    bLFO3Enabled         = true;
337              // process transition events (note on, note off & sustain pedal)                  break;
338              processTransitionEvents(itNoteEvent, iSubFragmentEnd);              case ::gig::lfo3_ctrl_internal_modwheel:
339                    lfo3_internal_depth  = pRegion->LFO3InternalDepth;
340              // if the voice was killed in this subfragment, or if the                  pLFO3->ExtController = 1; // MIDI controller 1
341              // filter EG is finished, switch EG1 to fade out stage                  bLFO3Enabled         = (lfo3_internal_depth > 0 || pRegion->LFO3ControlDepth > 0);
342              if ((itKillEvent && killPos <= iSubFragmentEnd) ||                  break;
343                  (SYNTHESIS_MODE_GET_FILTER(SynthesisMode) &&              case ::gig::lfo3_ctrl_internal_aftertouch:
344                   EG2.getSegmentType() == EGADSR::segment_end)) {                  lfo3_internal_depth  = pRegion->LFO3InternalDepth;
345                  EG1.enterFadeOutStage();                  pLFO3->ExtController = 128;
346                  itKillEvent = Pool<Event>::Iterator();                  bLFO3Enabled         = (lfo3_internal_depth > 0 || pRegion->LFO3ControlDepth > 0);
347              }                  break;
348                default:
349                    lfo3_internal_depth  = 0;
350                    pLFO3->ExtController = 0; // no external controller
351                    bLFO3Enabled         = false;
352            }
353            if (bLFO3Enabled) {
354                pLFO3->trigger(pRegion->LFO3Frequency,
355                               start_level_mid,
356                               lfo3_internal_depth,
357                               pRegion->LFO3ControlDepth,
358                               false,
359                               pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
360                pLFO3->update(pLFO3->ExtController ? GetGigEngineChannel()->ControllerTable[pLFO3->ExtController] : 0);
361            }
362        }
363    
364              // process envelope generators      float Voice::CalculateCutoffBase(uint8_t MIDIKeyVelocity) {
365              switch (EG1.getSegmentType()) {          float cutoff = pRegion->GetVelocityCutoff(MIDIKeyVelocity);
366                  case EGADSR::segment_lin:          if (pRegion->VCFKeyboardTracking) {
367                      fFinalVolume *= EG1.processLin();              cutoff *= RTMath::CentsToFreqRatioUnlimited((MIDIKey - pRegion->VCFKeyboardTrackingBreakpoint) * 100);
368                      break;          }
369                  case EGADSR::segment_exp:          return cutoff;
370                      fFinalVolume *= EG1.processExp();      }
371                      break;  
372                  case EGADSR::segment_end:      float Voice::CalculateFinalCutoff(float cutoffBase) {
373                      fFinalVolume *= EG1.getLevel();          int cvalue;
374                      break; // noop          if (VCFCutoffCtrl.controller) {
375              }              cvalue = GetGigEngineChannel()->ControllerTable[VCFCutoffCtrl.controller];
376              switch (EG2.getSegmentType()) {              if (pRegion->VCFCutoffControllerInvert) cvalue = 127 - cvalue;
377                  case EGADSR::segment_lin:              // VCFVelocityScale in this case means Minimum cutoff
378                      fFinalCutoff *= EG2.processLin();              if (cvalue < pRegion->VCFVelocityScale) cvalue = pRegion->VCFVelocityScale;
379                      break;          }
380                  case EGADSR::segment_exp:          else {
381                      fFinalCutoff *= EG2.processExp();              cvalue = pRegion->VCFCutoff;
382                      break;          }
383                  case EGADSR::segment_end:          float fco = cutoffBase * float(cvalue);
384                      fFinalCutoff *= EG2.getLevel();          if (fco > 127.0f) fco = 127.0f;
                     break; // noop  
             }  
             if (EG3.active()) finalSynthesisParameters.fFinalPitch *= EG3.render();  
385    
386              // process low frequency oscillators          return fco;
387              if (bLFO1Enabled) fFinalVolume *= (1.0f - pLFO1->render());      }
             if (bLFO2Enabled) fFinalCutoff *= pLFO2->render();  
             if (bLFO3Enabled) finalSynthesisParameters.fFinalPitch *= RTMath::CentsToFreqRatio(pLFO3->render());  
   
             // 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);  
             }  
388    
389              // do we need resampling?      uint8_t Voice::GetVCFCutoffCtrl() {
390              const float __PLUS_ONE_CENT  = 1.000577789506554859250142541782224725466f;          uint8_t ctrl;
391              const float __MINUS_ONE_CENT = 0.9994225441413807496009516495583113737666f;          switch (pRegion->VCFCutoffController) {
392              const bool bResamplingRequired = !(finalSynthesisParameters.fFinalPitch <= __PLUS_ONE_CENT &&              case ::gig::vcf_cutoff_ctrl_modwheel:
393                                                 finalSynthesisParameters.fFinalPitch >= __MINUS_ONE_CENT);                  ctrl = 1;
394              SYNTHESIS_MODE_SET_INTERPOLATE(SynthesisMode, bResamplingRequired);                  break;
395                case ::gig::vcf_cutoff_ctrl_effect1:
396              // prepare final synthesis parameters structure                  ctrl = 12;
397              finalSynthesisParameters.uiToGo            = iSubFragmentEnd - i;                  break;
398  #ifdef CONFIG_INTERPOLATE_VOLUME              case ::gig::vcf_cutoff_ctrl_effect2:
399              finalSynthesisParameters.fFinalVolumeDeltaLeft  =                  ctrl = 13;
400                  (fFinalVolume * VolumeLeft  * PanLeftSmoother.render() -                  break;
401                   finalSynthesisParameters.fFinalVolumeLeft) / finalSynthesisParameters.uiToGo;              case ::gig::vcf_cutoff_ctrl_breath:
402              finalSynthesisParameters.fFinalVolumeDeltaRight =                  ctrl = 2;
403                  (fFinalVolume * VolumeRight * PanRightSmoother.render() -                  break;
404                   finalSynthesisParameters.fFinalVolumeRight) / finalSynthesisParameters.uiToGo;              case ::gig::vcf_cutoff_ctrl_foot:
405  #else                  ctrl = 4;
406              finalSynthesisParameters.fFinalVolumeLeft  =                  break;
407                  fFinalVolume * VolumeLeft  * PanLeftSmoother.render();              case ::gig::vcf_cutoff_ctrl_sustainpedal:
408              finalSynthesisParameters.fFinalVolumeRight =                  ctrl = 64;
409                  fFinalVolume * VolumeRight * PanRightSmoother.render();                  break;
410  #endif              case ::gig::vcf_cutoff_ctrl_softpedal:
411              // render audio for one subfragment                  ctrl = 67;
412              RunSynthesisFunction(SynthesisMode, &finalSynthesisParameters, &loop);                  break;
413                case ::gig::vcf_cutoff_ctrl_genpurpose7:
414              // stop the rendering if volume EG is finished                  ctrl = 82;
415              if (EG1.getSegmentType() == EGADSR::segment_end) break;                  break;
416                case ::gig::vcf_cutoff_ctrl_genpurpose8:
417              const double newPos = Pos + (iSubFragmentEnd - i) * finalSynthesisParameters.fFinalPitch;                  ctrl = 83;
418                    break;
419              // increment envelopes' positions              case ::gig::vcf_cutoff_ctrl_aftertouch:
420              if (EG1.active()) {                  ctrl = 128;
421                    break;
422                  // 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              case ::gig::vcf_cutoff_ctrl_none:
423                  if (pDimRgn->SampleLoops && Pos <= pDimRgn->pSampleLoops[0].LoopStart && pDimRgn->pSampleLoops[0].LoopStart < newPos) {              default:
424                      EG1.update(EGADSR::event_hold_end, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);                  ctrl = 0;
425                  }                  break;
426            }
427    
428                  EG1.increment(1);          return ctrl;
429                  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  
430    
431              Pos = newPos;      uint8_t Voice::GetVCFResonanceCtrl() {
432              i = iSubFragmentEnd;          uint8_t ctrl;
433            switch (pRegion->VCFResonanceController) {
434                case ::gig::vcf_res_ctrl_genpurpose3:
435                    ctrl = 18;
436                    break;
437                case ::gig::vcf_res_ctrl_genpurpose4:
438                    ctrl = 19;
439                    break;
440                case ::gig::vcf_res_ctrl_genpurpose5:
441                    ctrl = 80;
442                    break;
443                case ::gig::vcf_res_ctrl_genpurpose6:
444                    ctrl = 81;
445                    break;
446                case ::gig::vcf_res_ctrl_none:
447                default:
448                    ctrl = 0;
449          }          }
450    
451            return ctrl;
452      }      }
453    
454      /** @brief Update current portamento position.      void Voice::TriggerEG1(const EGInfo& egInfo, double velrelease, double velocityAttenuation, uint sampleRate, uint8_t velocity) {
455       *          EG1.trigger(uint(RgnInfo.EG1PreAttack),
456       * Will be called when portamento mode is enabled to get the final                      RgnInfo.EG1Attack * egInfo.Attack,
457       * portamento position of this active voice from where the next voice(s)                      RgnInfo.EG1Hold,
458       * might continue to slide on.                      RgnInfo.EG1Decay1 * egInfo.Decay * velrelease,
459       *                      RgnInfo.EG1Decay2 * egInfo.Decay * velrelease,
460       * @param itNoteOffEvent - event which causes this voice to die soon                      RgnInfo.EG1InfiniteSustain,
461       */                      uint(RgnInfo.EG1Sustain),
462      void Voice::UpdatePortamentoPos(Pool<Event>::Iterator& itNoteOffEvent) {                      RgnInfo.EG1Release * egInfo.Release * velrelease,
463          const float fFinalEG3Level = EG3.level(itNoteOffEvent->FragmentPos());                      velocityAttenuation,
464          pEngineChannel->PortamentoPos = (float) MIDIKey + RTMath::FreqRatioToCents(fFinalEG3Level) * 0.01f;                      sampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
465      }      }
466    
467      /**      void Voice::TriggerEG2(const EGInfo& egInfo, double velrelease, double velocityAttenuation, uint sampleRate, uint8_t velocity) {
468       *  Immediately kill the voice. This method should not be used to kill          EG2.trigger(uint(RgnInfo.EG2PreAttack),
469       *  a normal, active voice, because it doesn't take care of things like                      RgnInfo.EG2Attack * egInfo.Attack,
470       *  fading down the volume level to avoid clicks and regular processing                      false,
471       *  until the kill event actually occured!                      RgnInfo.EG2Decay1 * egInfo.Decay * velrelease,
472       *                      RgnInfo.EG2Decay2 * egInfo.Decay * velrelease,
473       * If it's necessary to know when the voice's disk stream was actually                      RgnInfo.EG2InfiniteSustain,
474       * deleted, then one can set the optional @a bRequestNotification                      uint(RgnInfo.EG2Sustain),
475       * parameter and this method will then return the handle of the disk                      RgnInfo.EG2Release * egInfo.Release * velrelease,
476       * stream (unique identifier) and one can use this handle to poll the                      velocityAttenuation,
477       * disk thread if this stream has been deleted. In any case this method                      sampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
478       * will return immediately and will not block until the stream actually      }
479       * was deleted.  
480       *      void Voice::ProcessGroupEvent(RTList<Event>::Iterator& itEvent) {
481       * @param bRequestNotification - (optional) whether the disk thread shall          dmsg(4,("Voice %x processGroupEvents event type=%d", this, itEvent->Type));
482       *                                provide a notification once it deleted  
483       *                               the respective disk stream          // TODO: The SustainPedal condition could be wrong, maybe the
484       *                               (default=false)          // check should be if this Voice is in release stage or is a
485       * @returns handle to the voice's disk stream or @c Stream::INVALID_HANDLE          // release sample instead. Need to test this in GSt.
486       *          if the voice did not use a disk stream at all          if (itEvent->Param.Note.Key != MIDIKey ||
487       * @see Kill()              !GetGigEngineChannel()->SustainPedal) {
488       */              dmsg(4,("Voice %x - kill", this));
     Stream::Handle Voice::KillImmediately(bool bRequestNotification) {  
         Stream::Handle hStream = Stream::INVALID_HANDLE;  
         if (DiskVoice && DiskStreamRef.State != Stream::state_unused) {  
             pDiskThread->OrderDeletionOfStream(&DiskStreamRef, bRequestNotification);  
             hStream = DiskStreamRef.hStream;  
         }  
         Reset();  
         return hStream;  
     }  
   
     /**  
      *  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  
489    
490          if (itTriggerEvent && itKillEvent->FragmentPos() <= itTriggerEvent->FragmentPos()) return;              // kill the voice fast
491          this->itKillEvent = itKillEvent;              pEG1->enterFadeOutStage();
492            }
493      }      }
494    
495  }} // namespace LinuxSampler::gig  }} // namespace LinuxSampler::gig
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