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

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revision 2012 by iliev, Fri Oct 23 17:53:17 2009 UTC revision 2061 by persson, Tue Feb 23 18:32:31 2010 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 - 2010 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 21  Line 22 
22   *   MA  02111-1307  USA                                                   *   *   MA  02111-1307  USA                                                   *
23   ***************************************************************************/   ***************************************************************************/
24    
25  #include "../../common/Features.h"  #include "Voice.h"
26  #include "../gig/Synthesizer.h"  
 #include "../gig/Profiler.h"  
27  #include "Engine.h"  #include "Engine.h"
28  #include "EngineChannel.h"  #include "EngineChannel.h"
29    
 #include "Voice.h"  
   
30  namespace LinuxSampler { namespace sfz {  namespace LinuxSampler { namespace sfz {
31    
     typedef LinuxSampler::gig::Profiler Profiler; // TODO: remove  
   
32      Voice::Voice() {      Voice::Voice() {
33          pEngine     = NULL;          pEngine     = NULL;
         pDiskThread = NULL;  
         PlaybackState = playback_state_end;  
         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();  
34      }      }
35    
36      Voice::~Voice() {      Voice::~Voice() {
37          if (pLFO1) delete pLFO1;  
38          if (pLFO2) delete pLFO2;      }
39          if (pLFO3) delete pLFO3;  
40        EngineChannel* Voice::GetSfzEngineChannel() {
41            return static_cast<EngineChannel*>(pEngineChannel);
42      }      }
43    
44      void Voice::SetEngine(LinuxSampler::Engine* pEngine) {      void Voice::SetEngine(LinuxSampler::Engine* pEngine) {
# Line 67  namespace LinuxSampler { namespace sfz { Line 48  namespace LinuxSampler { namespace sfz {
48          dmsg(6,("Voice::SetEngine()\n"));          dmsg(6,("Voice::SetEngine()\n"));
49      }      }
50    
51      /**      Voice::SampleInfo Voice::GetSampleInfo() {
52       *  Initializes and triggers the voice, a disk stream will be launched if          SampleInfo si;
53       *  needed.          si.SampleRate       = pSample->GetSampleRate();
54       *          si.ChannelCount     = pSample->GetChannelCount();
55       *  @param pEngineChannel - engine channel on which this voice was ordered          si.FrameSize        = pSample->GetFrameSize();
56       *  @param itNoteOnEvent  - event that caused triggering of this voice          si.BitDepth         = (pSample->GetFrameSize() / pSample->GetChannelCount()) * 8;
57       *  @param PitchBend      - MIDI detune factor (-8192 ... +8191)          si.TotalFrameCount  = pSample->GetTotalFrameCount();
58       *  @param pRegion        - points to the dimension region which provides sample wave(s) and articulation data  
59       *  @param VoiceType      - type of this voice          si.HasLoops       = pRegion->HasLoop();
60       *  @param iKeyGroup      - a value > 0 defines a key group in which this voice is member of          si.LoopStart      = pRegion->GetLoopStart();
61       *  @returns 0 on success, a value < 0 if the voice wasn't triggered          si.LoopLength     = pRegion->GetLoopEnd() - pRegion->GetLoopStart();
62       *           (either due to an error or e.g. because no region is          si.LoopPlayCount  = pRegion->GetLoopCount();
63       *           defined for the given key)          si.Unpitched      = pRegion->pitch_keytrack == 0;
64       */          return si;
65      int Voice::Trigger(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itNoteOnEvent, int PitchBend, ::sfz::Region* pRegion, type_t VoiceType, int iKeyGroup) {      }
66          this->pEngineChannel = pEngineChannel;  
67          this->pRegion        = pRegion;      Voice::RegionInfo Voice::GetRegionInfo() {
68          Orphan = false;          RegionInfo ri;
69            ri.UnityNote = pRegion->pitch_keycenter;
70          #if CONFIG_DEVMODE          ri.FineTune  = pRegion->tune;
71          if (itNoteOnEvent->FragmentPos() > pEngine->MaxSamplesPerCycle) { // just a sanity check for debugging          ri.Pan       = int(pRegion->pan * 0.63); // convert from -100..100 to -64..63
72              dmsg(1,("Voice::Trigger(): ERROR, TriggerDelay > Totalsamples\n"));          ri.SampleStartOffset = 0; // TODO:
73          }  
74          #endif // CONFIG_DEVMODE          ri.EG1PreAttack        = pRegion->ampeg_start * 10;
75            ri.EG1Attack           = pRegion->ampeg_attack;
76            ri.EG1Hold             = pRegion->ampeg_hold;
77            ri.EG1Decay1           = pRegion->ampeg_decay;
78            ri.EG1Decay2           = pRegion->ampeg_decay;
79            ri.EG1Sustain          = pRegion->ampeg_sustain * 10;
80            ri.EG1InfiniteSustain  = true;
81            ri.EG1Release          = pRegion->ampeg_release;
82    
83            ri.EG2PreAttack        = pRegion->fileg_start * 10;
84            ri.EG2Attack           = pRegion->fileg_attack;
85            //ri.EG2Hold             = pRegion->fileg_hold; // TODO:
86            ri.EG2Decay1           = pRegion->fileg_decay;
87            ri.EG2Decay2           = pRegion->fileg_decay;
88            ri.EG2Sustain          = pRegion->fileg_sustain * 10;
89            ri.EG2InfiniteSustain  = true;
90            ri.EG2Release          = pRegion->fileg_release;
91    
92            ri.EG3Attack     = pRegion->pitcheg_attack;
93            ri.EG3Depth      = 0; // TODO:
94            ri.VCFEnabled    = false; // TODO:
95            ri.VCFType       = ::gig::vcf_type_lowpass; // TODO:
96            ri.VCFResonance  = 0; // TODO:
97    
98            // rt_decay is in dB. Precalculate a suitable value for exp in
99            // GetReleaseTriggerAttenuation: -ln(10) / 20 * rt_decay
100            ri.ReleaseTriggerDecay = -0.115129254649702 * pRegion->rt_decay;
101    
102            return ri;
103        }
104    
105        Voice::InstrumentInfo Voice::GetInstrumentInfo() {
106            InstrumentInfo ii;
107            ii.FineTune = 0; // TODO:
108            ii.PitchbendRange = 2; // TODO:
109    
110            return ii;
111        }
112    
113        double Voice::GetSampleAttenuation() {
114            return 1.0; // TODO:
115        }
116    
117        double Voice::GetVelocityAttenuation(uint8_t MIDIKeyVelocity) {
118            return double(MIDIKeyVelocity) / 127.0f; // TODO:
119        }
120    
121        double Voice::GetVelocityRelease(uint8_t MIDIKeyVelocity) {
122            return 0.9; // TODO:
123        }
124    
125        void Voice::ProcessCCEvent(RTList<Event>::Iterator& itEvent) {
126            /*if (itEvent->Type == Event::type_control_change && itEvent->Param.CC.Controller) { // if (valid) MIDI control change event
127                if (pRegion->AttenuationController.type == ::gig::attenuation_ctrl_t::type_controlchange &&
128                    itEvent->Param.CC.Controller == pRegion->AttenuationController.controller_number) {
129                    CrossfadeSmoother.update(AbstractEngine::CrossfadeCurve[CrossfadeAttenuation(itEvent->Param.CC.Value)]);
130                }
131            }*/ // TODO: ^^^
132        }
133    
134          Type            = VoiceType;      void Voice::ProcessCutoffEvent(RTList<Event>::Iterator& itEvent) {
135          MIDIKey         = itNoteOnEvent->Param.Note.Key;          /*int ccvalue = itEvent->Param.CC.Value;
136          PlaybackState   = playback_state_init; // mark voice as triggered, but no audio rendered yet          if (VCFCutoffCtrl.value == ccvalue) return;
137          Delay           = itNoteOnEvent->FragmentPos();          VCFCutoffCtrl.value == ccvalue;
138          itTriggerEvent  = itNoteOnEvent;          if (pRegion->VCFCutoffControllerInvert)  ccvalue = 127 - ccvalue;
139          itKillEvent     = Pool<Event>::Iterator();          if (ccvalue < pRegion->VCFVelocityScale) ccvalue = pRegion->VCFVelocityScale;
140          KeyGroup        = iKeyGroup;          float cutoff = CutoffBase * float(ccvalue);
141          pSample         = pRegion->pSample; // sample won't change until the voice is finished          if (cutoff > 127.0f) cutoff = 127.0f;
   
         /*// calculate volume  
         const double velocityAttenuation = pRegion->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);  
   
         float volume = pRegion->SampleAttenuation * pEngineChannel->GlobalVolume * GLOBAL_VOLUME;  
          */ // TODO: ^^^  
         float volume = 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 >> pRegion->ReleaseTriggerDecay) * noteLength;  
             if (attenuation <= 0) return -1;  
             volume *= attenuation;  
         }  
          */ // TODO: ^^^  
142    
143          // select channel mode (mono or stereo)          VCFCutoffCtrl.fvalue = cutoff; // needed for initialization of fFinalCutoff next time
144          SYNTHESIS_MODE_SET_CHANNELS(SynthesisMode, pSample->GetChannelCount() == 2);          fFinalCutoff = cutoff;*/ // TODO: ^^^
145          // select bit depth (16 or 24)      }
         SYNTHESIS_MODE_SET_BITDEPTH24(SynthesisMode, (pSample->GetFrameSize() / pSample->GetChannelCount()) > 2);  
146    
147          // get starting crossfade volume level      double Voice::CalculateCrossfadeVolume(uint8_t MIDIKeyVelocity) {
148          /*float crossfadeVolume;          /*float crossfadeVolume;
149          switch (pRegion->AttenuationController.type) {          switch (pRegion->AttenuationController.type) {
150              case ::gig::attenuation_ctrl_t::type_channelaftertouch:              case ::gig::attenuation_ctrl_t::type_channelaftertouch:
151                  crossfadeVolume = Engine::CrossfadeCurve[CrossfadeAttenuation(pEngineChannel->ControllerTable[128])];                  crossfadeVolume = Engine::CrossfadeCurve[CrossfadeAttenuation(GetSfzEngineChannel()->ControllerTable[128])];
152                  break;                  break;
153              case ::gig::attenuation_ctrl_t::type_velocity:              case ::gig::attenuation_ctrl_t::type_velocity:
154                  crossfadeVolume = Engine::CrossfadeCurve[CrossfadeAttenuation(itNoteOnEvent->Param.Note.Velocity)];                  crossfadeVolume = Engine::CrossfadeCurve[CrossfadeAttenuation(MIDIKeyVelocity)];
155                  break;                  break;
156              case ::gig::attenuation_ctrl_t::type_controlchange: //FIXME: currently not sample accurate              case ::gig::attenuation_ctrl_t::type_controlchange: //FIXME: currently not sample accurate
157                  crossfadeVolume = Engine::CrossfadeCurve[CrossfadeAttenuation(pEngineChannel->ControllerTable[pRegion->AttenuationController.controller_number])];                  crossfadeVolume = Engine::CrossfadeCurve[CrossfadeAttenuation(GetSfzEngineChannel()->ControllerTable[pRegion->AttenuationController.controller_number])];
158                  break;                  break;
159              case ::gig::attenuation_ctrl_t::type_none: // no crossfade defined              case ::gig::attenuation_ctrl_t::type_none: // no crossfade defined
160              default:              default:
161                  crossfadeVolume = 1.0f;                  crossfadeVolume = 1.0f;
         }*/ // TODO: ^^^  
   
         VolumeLeft  = volume * Engine::PanCurve[64 - pRegion->pan];  
         VolumeRight = volume * Engine::PanCurve[64 + pRegion->pan];  
   
         float subfragmentRate = pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE;  
         //CrossfadeSmoother.trigger(crossfadeVolume, subfragmentRate); // TODO:  
         VolumeSmoother.trigger(pEngineChannel->MidiVolume, subfragmentRate);  
         PanLeftSmoother.trigger(pEngineChannel->GlobalPanLeft, subfragmentRate);  
         PanRightSmoother.trigger(pEngineChannel->GlobalPanRight, subfragmentRate);  
   
         /*finalSynthesisParameters.dPos = pRegion->SampleStartOffset; // offset where we should start playback of sample (0 - 2000 sample points)  
         Pos = pRegion->SampleStartOffset;*/ // TODO: ^^^  
         Pos = finalSynthesisParameters.dPos = 0;  
   
         // Check if the sample needs disk streaming or is too short for that  
         long cachedsamples = pSample->GetCache().Size / pSample->GetFrameSize();  
         DiskVoice          = cachedsamples < pSample->GetTotalFrameCount();  
   
         //const DLS::sample_loop_t& loopinfo = pRegion->pSampleLoops[0]; // TODO:  
   
         if (DiskVoice) { // voice to be streamed from disk  
             if (cachedsamples > (pEngine->MaxSamplesPerCycle << CONFIG_MAX_PITCH)) {  
                 MaxRAMPos = cachedsamples - (pEngine->MaxSamplesPerCycle << CONFIG_MAX_PITCH) / pSample->GetChannelCount(); //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;  
             }  
   
             // check if there's a loop defined which completely fits into the cached (RAM) part of the sample  
             //RAMLoop = (pRegion->SampleLoops && (loopinfo.LoopStart + loopinfo.LoopLength) <= MaxRAMPos); // TODO:  
             if (pDiskThread->OrderNewStream(&DiskStreamRef, pRegion, MaxRAMPos, false) < 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->GetTotalFrameCount(), MaxRAMPos, (RAMLoop) ? "yes" : "no"));  
         }  
         else { // RAM only voice  
             MaxRAMPos = cachedsamples;  
             /*RAMLoop = (pRegion->SampleLoops != 0);  
             dmsg(4,("RAM only voice launched (Looping: %s)\n", (RAMLoop) ? "yes" : "no")); */ // TODO:  
         }  
         /*if (RAMLoop) {  
             loop.uiTotalCycles = pSample->LoopPlayCount;  
             loop.uiCyclesLeft  = pSample->LoopPlayCount;  
             loop.uiStart       = loopinfo.LoopStart;  
             loop.uiEnd         = loopinfo.LoopStart + loopinfo.LoopLength;  
             loop.uiSize        = loopinfo.LoopLength;  
         }*/ // TODO: ^^^  
   
         // calculate initial pitch value  
         {  
             double pitchbasecents = /* TODO: pEngineChannel->pInstrument->FineTune*/ + pRegion->tune + 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 (pRegion->PitchTrack && (MIDIKey - (int) pRegion->UnityNote) < 40) pitchbasecents += (MIDIKey - (int) pRegion->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);*/ // TODO: ^^^  
         }  
   
         // the length of the decay and release curves are dependent on the velocity  
         //const double velrelease = 1 / pRegion->GetVelocityRelease(itNoteOnEvent->Param.Note.Velocity); //TODO:  
   
         // setup EG 1 (VCA EG)  
         {  
         /*    // get current value of EG1 controller  
             double eg1controllervalue;  
             switch (pRegion->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[pRegion->EG1Controller.controller_number];  
                     break;  
             }  
             if (pRegion->EG1ControllerInvert) eg1controllervalue = 127 - eg1controllervalue;  
   
             // calculate influence of EG1 controller on EG1's parameters  
             // (eg1attack is different from the others)  
             double eg1attack  = (pRegion->EG1ControllerAttackInfluence)  ?  
                 1 + 0.031 * (double) (pRegion->EG1ControllerAttackInfluence == 1 ?  
                                       1 : 1 << pRegion->EG1ControllerAttackInfluence) * eg1controllervalue : 1.0;  
             double eg1decay   = (pRegion->EG1ControllerDecayInfluence)   ? 1 + 0.00775 * (double) (1 << pRegion->EG1ControllerDecayInfluence)   * eg1controllervalue : 1.0;  
             double eg1release = (pRegion->EG1ControllerReleaseInfluence) ? 1 + 0.00775 * (double) (1 << pRegion->EG1ControllerReleaseInfluence) * eg1controllervalue : 1.0;  
   
             EG1.trigger(pRegion->EG1PreAttack,  
                         pRegion->EG1Attack * eg1attack,  
                         pRegion->EG1Hold,  
                         pRegion->EG1Decay1 * eg1decay * velrelease,  
                         pRegion->EG1Decay2 * eg1decay * velrelease,  
                         pRegion->EG1InfiniteSustain,  
                         pRegion->EG1Sustain,  
                         pRegion->EG1Release * eg1release * velrelease,  
                         velocityAttenuation,  
                         pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);  
         }*/ // TODO: ^^^  
             EG1.trigger(0,  
                         0,  
                         false,  
                         0,  
                         0,  
                         true,  
                         100,  
                         0,  
                         1,  
                         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(); // TODO:  
             float finalVolume = pEngineChannel->MidiVolume;  
   
             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 (pRegion->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[pRegion->EG2Controller.controller_number];  
                     break;  
             }  
             if (pRegion->EG2ControllerInvert) eg2controllervalue = 127 - eg2controllervalue;  
   
             // calculate influence of EG2 controller on EG2's parameters  
             double eg2attack  = (pRegion->EG2ControllerAttackInfluence)  ? 1 + 0.00775 * (double) (1 << pRegion->EG2ControllerAttackInfluence)  * eg2controllervalue : 1.0;  
             double eg2decay   = (pRegion->EG2ControllerDecayInfluence)   ? 1 + 0.00775 * (double) (1 << pRegion->EG2ControllerDecayInfluence)   * eg2controllervalue : 1.0;  
             double eg2release = (pRegion->EG2ControllerReleaseInfluence) ? 1 + 0.00775 * (double) (1 << pRegion->EG2ControllerReleaseInfluence) * eg2controllervalue : 1.0;  
   
             EG2.trigger(pRegion->EG2PreAttack,  
                         pRegion->EG2Attack * eg2attack,  
                         false,  
                         pRegion->EG2Decay1 * eg2decay * velrelease,  
                         pRegion->EG2Decay2 * eg2decay * velrelease,  
                         pRegion->EG2InfiniteSustain,  
                         pRegion->EG2Sustain,  
                         pRegion->EG2Release * eg2release * velrelease,  
                         velocityAttenuation,  
                         pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);  
162          }          }
163    
164            return crossfadeVolume;*/ // TODO: ^^^
165            return 1.0f;
166        }
167    
168          // setup EG 3 (VCO EG)      double Voice::GetEG1ControllerValue(uint8_t MIDIKeyVelocity) {
169          {          /*double eg1controllervalue = 0;
170              // if portamento mode is on, we dedicate EG3 purely for portamento, otherwise if portamento is off we do as told by the patch          switch (pRegion->EG1Controller.type) {
171              bool  bPortamento = pEngineChannel->PortamentoMode && pEngineChannel->PortamentoPos >= 0.0f;              case ::gig::eg1_ctrl_t::type_none: // no controller defined
172              float eg3depth = (bPortamento)                  eg1controllervalue = 0;
173                                   ? RTMath::CentsToFreqRatio((pEngineChannel->PortamentoPos - (float) MIDIKey) * 100)                  break;
174                                   : RTMath::CentsToFreqRatio(pRegion->EG3Depth);              case ::gig::eg1_ctrl_t::type_channelaftertouch:
175              float eg3time = (bPortamento)                  eg1controllervalue = GetSfzEngineChannel()->ControllerTable[128];
176                                  ? pEngineChannel->PortamentoTime                  break;
177                                  : pRegion->EG3Attack;              case ::gig::eg1_ctrl_t::type_velocity:
178              EG3.trigger(eg3depth, eg3time, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);                  eg1controllervalue = MIDIKeyVelocity;
179              dmsg(5,("PortamentoPos=%f, depth=%f, time=%f\n", pEngineChannel->PortamentoPos, eg3depth, eg3time));                  break;
180                case ::gig::eg1_ctrl_t::type_controlchange: // MIDI control change controller
181                    eg1controllervalue = GetSfzEngineChannel()->ControllerTable[pRegion->EG1Controller.controller_number];
182                    break;
183          }          }
184            if (pRegion->EG1ControllerInvert) eg1controllervalue = 127 - eg1controllervalue;
185    
186            return eg1controllervalue;*/ // TODO: ^^^
187            return 0;
188        }
189    
190          // setup LFO 1 (VCA LFO)      Voice::EGInfo Voice::CalculateEG1ControllerInfluence(double eg1ControllerValue) {
191          {          /*EGInfo eg;
192              uint16_t lfo1_internal_depth;          // (eg1attack is different from the others)
193              switch (pRegion->LFO1Controller) {          eg.Attack  = (pRegion->EG1ControllerAttackInfluence)  ?
194                  case ::gig::lfo1_ctrl_internal:              1 + 0.031 * (double) (pRegion->EG1ControllerAttackInfluence == 1 ?
195                      lfo1_internal_depth  = pRegion->LFO1InternalDepth;                                    1 : 1 << pRegion->EG1ControllerAttackInfluence) * eg1ControllerValue : 1.0;
196                      pLFO1->ExtController = 0; // no external controller          eg.Decay   = (pRegion->EG1ControllerDecayInfluence)   ? 1 + 0.00775 * (double) (1 << pRegion->EG1ControllerDecayInfluence)   * eg1ControllerValue : 1.0;
197                      bLFO1Enabled         = (lfo1_internal_depth > 0);          eg.Release = (pRegion->EG1ControllerReleaseInfluence) ? 1 + 0.00775 * (double) (1 << pRegion->EG1ControllerReleaseInfluence) * eg1ControllerValue : 1.0;
198                      break;  
199                  case ::gig::lfo1_ctrl_modwheel:          return eg;*/ // TODO: ^^^
200                      lfo1_internal_depth  = 0;          EGInfo eg;
201                      pLFO1->ExtController = 1; // MIDI controller 1          eg.Attack = 1.0;
202                      bLFO1Enabled         = (pRegion->LFO1ControlDepth > 0);          eg.Decay = 1.0;
203                      break;          eg.Release = 1.0;
204                  case ::gig::lfo1_ctrl_breath:          return eg;
205                      lfo1_internal_depth  = 0;      }
206                      pLFO1->ExtController = 2; // MIDI controller 2  
207                      bLFO1Enabled         = (pRegion->LFO1ControlDepth > 0);      void Voice::TriggerEG1(const EGInfo& egInfo, double velrelease, double velocityAttenuation, uint sampleRate, uint8_t velocity) {
208                      break;  
209                  case ::gig::lfo1_ctrl_internal_modwheel:          // TODO: controller modulation
210                      lfo1_internal_depth  = pRegion->LFO1InternalDepth;  
211                      pLFO1->ExtController = 1; // MIDI controller 1          // first check if there is a v2 EG for amplitude
212                      bLFO1Enabled         = (lfo1_internal_depth > 0 || pRegion->LFO1ControlDepth > 0);          for (int i = 0 ; i < pRegion->eg.size() ; i++) {
213                      break;              if (pRegion->eg[i].amplitude > 0) {
214                  case ::gig::lfo1_ctrl_internal_breath:                  // TODO: actually use the value of the amplitude parameter
215                      lfo1_internal_depth  = pRegion->LFO1InternalDepth;                  pEG1 = &EG1;
216                      pLFO1->ExtController = 2; // MIDI controller 2                  EG1.trigger(pRegion->eg[i], sampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE, velocity);
217                      bLFO1Enabled         = (lfo1_internal_depth > 0 || pRegion->LFO1ControlDepth > 0);                  return;
                     break;  
                 default:  
                     lfo1_internal_depth  = 0;  
                     pLFO1->ExtController = 0; // no external controller  
                     bLFO1Enabled         = false;  
             }  
             if (bLFO1Enabled) {  
                 pLFO1->trigger(pRegion->LFO1Frequency,  
                                start_level_min,  
                                lfo1_internal_depth,  
                                pRegion->LFO1ControlDepth,  
                                pRegion->LFO1FlipPhase,  
                                pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);  
                 pLFO1->update(pLFO1->ExtController ? pEngineChannel->ControllerTable[pLFO1->ExtController] : 0);  
218              }              }
219          }          }
220    
221            // otherwise use the v1 EGADSR
222          // setup LFO 2 (VCF Cutoff LFO)          pEG1 = &EGADSR1;
223          {          EGADSR1.trigger(uint(RgnInfo.EG1PreAttack),
224              uint16_t lfo2_internal_depth;                          RgnInfo.EG1Attack,
225              switch (pRegion->LFO2Controller) {                          RgnInfo.EG1Hold,
226                  case ::gig::lfo2_ctrl_internal:                          RgnInfo.EG1Decay1,
227                      lfo2_internal_depth  = pRegion->LFO2InternalDepth;                          uint(RgnInfo.EG1Sustain),
228                      pLFO2->ExtController = 0; // no external controller                          RgnInfo.EG1Release,
229                      bLFO2Enabled         = (lfo2_internal_depth > 0);                          sampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
230                      break;       }
231                  case ::gig::lfo2_ctrl_modwheel:  
232                      lfo2_internal_depth  = 0;       double Voice::GetEG2ControllerValue(uint8_t MIDIKeyVelocity) {
233                      pLFO2->ExtController = 1; // MIDI controller 1          /*double eg2controllervalue = 0;
234                      bLFO2Enabled         = (pRegion->LFO2ControlDepth > 0);          switch (pRegion->EG2Controller.type) {
235                      break;              case ::gig::eg2_ctrl_t::type_none: // no controller defined
236                  case ::gig::lfo2_ctrl_foot:                  eg2controllervalue = 0;
237                      lfo2_internal_depth  = 0;                  break;
238                      pLFO2->ExtController = 4; // MIDI controller 4              case ::gig::eg2_ctrl_t::type_channelaftertouch:
239                      bLFO2Enabled         = (pRegion->LFO2ControlDepth > 0);                  eg2controllervalue = GetSfzEngineChannel()->ControllerTable[128];
240                      break;                  break;
241                  case ::gig::lfo2_ctrl_internal_modwheel:              case ::gig::eg2_ctrl_t::type_velocity:
242                      lfo2_internal_depth  = pRegion->LFO2InternalDepth;                  eg2controllervalue = MIDIKeyVelocity;
243                      pLFO2->ExtController = 1; // MIDI controller 1                  break;
244                      bLFO2Enabled         = (lfo2_internal_depth > 0 || pRegion->LFO2ControlDepth > 0);              case ::gig::eg2_ctrl_t::type_controlchange: // MIDI control change controller
245                      break;                  eg2controllervalue = GetSfzEngineChannel()->ControllerTable[pRegion->EG2Controller.controller_number];
246                  case ::gig::lfo2_ctrl_internal_foot:                  break;
                     lfo2_internal_depth  = pRegion->LFO2InternalDepth;  
                     pLFO2->ExtController = 4; // MIDI controller 4  
                     bLFO2Enabled         = (lfo2_internal_depth > 0 || pRegion->LFO2ControlDepth > 0);  
                     break;  
                 default:  
                     lfo2_internal_depth  = 0;  
                     pLFO2->ExtController = 0; // no external controller  
                     bLFO2Enabled         = false;  
             }  
             if (bLFO2Enabled) {  
                 pLFO2->trigger(pRegion->LFO2Frequency,  
                                start_level_max,  
                                lfo2_internal_depth,  
                                pRegion->LFO2ControlDepth,  
                                pRegion->LFO2FlipPhase,  
                                pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);  
                 pLFO2->update(pLFO2->ExtController ? pEngineChannel->ControllerTable[pLFO2->ExtController] : 0);  
             }  
247          }          }
248            if (pRegion->EG2ControllerInvert) eg2controllervalue = 127 - eg2controllervalue;
249    
250            return eg2controllervalue;*/ // TODO: ^^^
251            return 0;
252        }
253    
254          // setup LFO 3 (VCO LFO)      Voice::EGInfo Voice::CalculateEG2ControllerInfluence(double eg2ControllerValue) {
255          {          /*EGInfo eg;
256              uint16_t lfo3_internal_depth;          eg.Attack  = (pRegion->EG2ControllerAttackInfluence)  ? 1 + 0.00775 * (double) (1 << pRegion->EG2ControllerAttackInfluence)  * eg2ControllerValue : 1.0;
257              switch (pRegion->LFO3Controller) {          eg.Decay   = (pRegion->EG2ControllerDecayInfluence)   ? 1 + 0.00775 * (double) (1 << pRegion->EG2ControllerDecayInfluence)   * eg2ControllerValue : 1.0;
258                  case ::gig::lfo3_ctrl_internal:          eg.Release = (pRegion->EG2ControllerReleaseInfluence) ? 1 + 0.00775 * (double) (1 << pRegion->EG2ControllerReleaseInfluence) * eg2ControllerValue : 1.0;
259                      lfo3_internal_depth  = pRegion->LFO3InternalDepth;  
260                      pLFO3->ExtController = 0; // no external controller          return eg;*/ // TODO: ^^^
261                      bLFO3Enabled         = (lfo3_internal_depth > 0);          EGInfo eg;
262                      break;          eg.Attack = 1.0;
263                  case ::gig::lfo3_ctrl_modwheel:          eg.Decay = 1.0;
264                      lfo3_internal_depth  = 0;          eg.Release = 1.0;
265                      pLFO3->ExtController = 1; // MIDI controller 1          return eg;
266                      bLFO3Enabled         = (pRegion->LFO3ControlDepth > 0);      }
267                      break;  
268                  case ::gig::lfo3_ctrl_aftertouch:      void Voice::InitLFO1() {
269                      lfo3_internal_depth  = 0;          /*uint16_t lfo1_internal_depth;
270                      pLFO3->ExtController = 128;          switch (pRegion->LFO1Controller) {
271                      bLFO3Enabled         = true;              case ::gig::lfo1_ctrl_internal:
272                      break;                  lfo1_internal_depth  = pRegion->LFO1InternalDepth;
273                  case ::gig::lfo3_ctrl_internal_modwheel:                  pLFO1->ExtController = 0; // no external controller
274                      lfo3_internal_depth  = pRegion->LFO3InternalDepth;                  bLFO1Enabled         = (lfo1_internal_depth > 0);
275                      pLFO3->ExtController = 1; // MIDI controller 1                  break;
276                      bLFO3Enabled         = (lfo3_internal_depth > 0 || pRegion->LFO3ControlDepth > 0);              case ::gig::lfo1_ctrl_modwheel:
277                      break;                  lfo1_internal_depth  = 0;
278                  case ::gig::lfo3_ctrl_internal_aftertouch:                  pLFO1->ExtController = 1; // MIDI controller 1
279                      lfo3_internal_depth  = pRegion->LFO3InternalDepth;                  bLFO1Enabled         = (pRegion->LFO1ControlDepth > 0);
280                      pLFO1->ExtController = 128;                  break;
281                      bLFO3Enabled         = (lfo3_internal_depth > 0 || pRegion->LFO3ControlDepth > 0);              case ::gig::lfo1_ctrl_breath:
282                      break;                  lfo1_internal_depth  = 0;
283                  default:                  pLFO1->ExtController = 2; // MIDI controller 2
284                      lfo3_internal_depth  = 0;                  bLFO1Enabled         = (pRegion->LFO1ControlDepth > 0);
285                      pLFO3->ExtController = 0; // no external controller                  break;
286                      bLFO3Enabled         = false;              case ::gig::lfo1_ctrl_internal_modwheel:
287              }                  lfo1_internal_depth  = pRegion->LFO1InternalDepth;
288              if (bLFO3Enabled) {                  pLFO1->ExtController = 1; // MIDI controller 1
289                  pLFO3->trigger(pRegion->LFO3Frequency,                  bLFO1Enabled         = (lfo1_internal_depth > 0 || pRegion->LFO1ControlDepth > 0);
290                                 start_level_mid,                  break;
291                                 lfo3_internal_depth,              case ::gig::lfo1_ctrl_internal_breath:
292                                 pRegion->LFO3ControlDepth,                  lfo1_internal_depth  = pRegion->LFO1InternalDepth;
293                                 false,                  pLFO1->ExtController = 2; // MIDI controller 2
294                                 pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);                  bLFO1Enabled         = (lfo1_internal_depth > 0 || pRegion->LFO1ControlDepth > 0);
295                  pLFO3->update(pLFO3->ExtController ? pEngineChannel->ControllerTable[pLFO3->ExtController] : 0);                  break;
296              }              default:
297                    lfo1_internal_depth  = 0;
298                    pLFO1->ExtController = 0; // no external controller
299                    bLFO1Enabled         = false;
300            }
301            if (bLFO1Enabled) {
302                pLFO1->trigger(pRegion->LFO1Frequency,
303                               start_level_min,
304                               lfo1_internal_depth,
305                               pRegion->LFO1ControlDepth,
306                               pRegion->LFO1FlipPhase,
307                               pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
308                pLFO1->update(pLFO1->ExtController ? GetSfzEngineChannel()->ControllerTable[pLFO1->ExtController] : 0);
309          }*/ // TODO: ^^^          }*/ // TODO: ^^^
310            bLFO1Enabled = false;
311        }
312    
313        void Voice::InitLFO2() {
314          /*#if CONFIG_FORCE_FILTER          /*uint16_t lfo2_internal_depth;
315          const bool bUseFilter = true;          switch (pRegion->LFO2Controller) {
316          #else // use filter only if instrument file told so              case ::gig::lfo2_ctrl_internal:
317          const bool bUseFilter = pRegion->VCFEnabled;                  lfo2_internal_depth  = pRegion->LFO2InternalDepth;
318          #endif // CONFIG_FORCE_FILTER                  pLFO2->ExtController = 0; // no external controller
319          SYNTHESIS_MODE_SET_FILTER(SynthesisMode, bUseFilter);                  bLFO2Enabled         = (lfo2_internal_depth > 0);
320          if (bUseFilter) {                  break;
321              #ifdef CONFIG_OVERRIDE_CUTOFF_CTRL              case ::gig::lfo2_ctrl_modwheel:
322              VCFCutoffCtrl.controller = CONFIG_OVERRIDE_CUTOFF_CTRL;                  lfo2_internal_depth  = 0;
323              #else // use the one defined in the instrument file                  pLFO2->ExtController = 1; // MIDI controller 1
324              switch (pRegion->VCFCutoffController) {                  bLFO2Enabled         = (pRegion->LFO2ControlDepth > 0);
325                  case ::gig::vcf_cutoff_ctrl_modwheel:                  break;
326                      VCFCutoffCtrl.controller = 1;              case ::gig::lfo2_ctrl_foot:
327                      break;                  lfo2_internal_depth  = 0;
328                  case ::gig::vcf_cutoff_ctrl_effect1:                  pLFO2->ExtController = 4; // MIDI controller 4
329                      VCFCutoffCtrl.controller = 12;                  bLFO2Enabled         = (pRegion->LFO2ControlDepth > 0);
330                      break;                  break;
331                  case ::gig::vcf_cutoff_ctrl_effect2:              case ::gig::lfo2_ctrl_internal_modwheel:
332                      VCFCutoffCtrl.controller = 13;                  lfo2_internal_depth  = pRegion->LFO2InternalDepth;
333                      break;                  pLFO2->ExtController = 1; // MIDI controller 1
334                  case ::gig::vcf_cutoff_ctrl_breath:                  bLFO2Enabled         = (lfo2_internal_depth > 0 || pRegion->LFO2ControlDepth > 0);
335                      VCFCutoffCtrl.controller = 2;                  break;
336                      break;              case ::gig::lfo2_ctrl_internal_foot:
337                  case ::gig::vcf_cutoff_ctrl_foot:                  lfo2_internal_depth  = pRegion->LFO2InternalDepth;
338                      VCFCutoffCtrl.controller = 4;                  pLFO2->ExtController = 4; // MIDI controller 4
339                      break;                  bLFO2Enabled         = (lfo2_internal_depth > 0 || pRegion->LFO2ControlDepth > 0);
340                  case ::gig::vcf_cutoff_ctrl_sustainpedal:                  break;
341                      VCFCutoffCtrl.controller = 64;              default:
342                      break;                  lfo2_internal_depth  = 0;
343                  case ::gig::vcf_cutoff_ctrl_softpedal:                  pLFO2->ExtController = 0; // no external controller
344                      VCFCutoffCtrl.controller = 67;                  bLFO2Enabled         = false;
345                      break;          }
346                  case ::gig::vcf_cutoff_ctrl_genpurpose7:          if (bLFO2Enabled) {
347                      VCFCutoffCtrl.controller = 82;              pLFO2->trigger(pRegion->LFO2Frequency,
348                      break;                             start_level_max,
349                  case ::gig::vcf_cutoff_ctrl_genpurpose8:                             lfo2_internal_depth,
350                      VCFCutoffCtrl.controller = 83;                             pRegion->LFO2ControlDepth,
351                      break;                             pRegion->LFO2FlipPhase,
352                  case ::gig::vcf_cutoff_ctrl_aftertouch:                             pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
353                      VCFCutoffCtrl.controller = 128;              pLFO2->update(pLFO2->ExtController ? GetSfzEngineChannel()->ControllerTable[pLFO2->ExtController] : 0);
                     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 (pRegion->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  
   
             #ifndef CONFIG_OVERRIDE_FILTER_TYPE  
             finalSynthesisParameters.filterLeft.SetType(pRegion->VCFType);  
             finalSynthesisParameters.filterRight.SetType(pRegion->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 = pRegion->GetVelocityCutoff(itNoteOnEvent->Param.Note.Velocity);  
             if (pRegion->VCFKeyboardTracking) {  
                 cutoff *= exp((itNoteOnEvent->Param.Note.Key - pRegion->VCFKeyboardTrackingBreakpoint) * 0.057762265f); // (ln(2) / 12)  
             }  
             CutoffBase = cutoff;  
   
             int cvalue;  
             if (VCFCutoffCtrl.controller) {  
                 cvalue = pEngineChannel->ControllerTable[VCFCutoffCtrl.controller];  
                 if (pRegion->VCFCutoffControllerInvert) cvalue = 127 - cvalue;  
                 // VCFVelocityScale in this case means Minimum cutoff  
                 if (cvalue < pRegion->VCFVelocityScale) cvalue = pRegion->VCFVelocityScale;  
             }  
             else {  
                 cvalue = pRegion->VCFCutoff;  
             }  
             cutoff *= float(cvalue);  
             if (cutoff > 127.0f) cutoff = 127.0f;  
   
             // calculate resonance  
             float resonance = (float) (VCFResonanceCtrl.controller ? VCFResonanceCtrl.value : pRegion->VCFResonance);  
   
             VCFCutoffCtrl.fvalue    = cutoff;  
             VCFResonanceCtrl.fvalue = resonance;  
         }  
         else {  
             VCFCutoffCtrl.controller    = 0;  
             VCFResonanceCtrl.controller = 0;  
354          }*/ // TODO: ^^^          }*/ // TODO: ^^^
355            bLFO2Enabled = false;
         return 0; // success  
356      }      }
357    
358      /**      void Voice::InitLFO3() {
359       *  Renders the audio data for this voice for the current audio fragment.          /*uint16_t lfo3_internal_depth;
360       *  The sample input data can either come from RAM (cached sample or sample          switch (pRegion->LFO3Controller) {
361       *  part) or directly from disk. The output signal will be rendered by              case ::gig::lfo3_ctrl_internal:
362       *  resampling / interpolation. If this voice is a disk streaming voice and                  lfo3_internal_depth  = pRegion->LFO3InternalDepth;
363       *  the voice completely played back the cached RAM part of the sample, it                  pLFO3->ExtController = 0; // no external controller
364       *  will automatically switch to disk playback for the next RenderAudio()                  bLFO3Enabled         = (lfo3_internal_depth > 0);
      *  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->GetFrameSize()) {  
                         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->GetChannelCount() * (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->GetChannelCount() + 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->GetChannelCount(); // 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;  
                     }  
                 }  
365                  break;                  break;
366                case ::gig::lfo3_ctrl_modwheel:
367              case playback_state_end:                  lfo3_internal_depth  = 0;
368                  std::cerr << "gig::Voice::Render(): entered with playback_state_end, this is a bug!\n" << std::flush;                  pLFO3->ExtController = 1; // MIDI controller 1
369                    bLFO3Enabled         = (pRegion->LFO3ControlDepth > 0);
370                  break;                  break;
371          }              case ::gig::lfo3_ctrl_aftertouch:
372                    lfo3_internal_depth  = 0;
373          // Reset delay                  pLFO3->ExtController = 128;
374          Delay = 0;                  bLFO3Enabled         = true;
375                    break;
376          itTriggerEvent = Pool<Event>::Iterator();              case ::gig::lfo3_ctrl_internal_modwheel:
377                    lfo3_internal_depth  = pRegion->LFO3InternalDepth;
378          // If sample stream or release stage finished, kill the voice                  pLFO3->ExtController = 1; // MIDI controller 1
379          if (PlaybackState == playback_state_end || EG1.getSegmentType() == EGADSR::segment_end) KillImmediately();                  bLFO3Enabled         = (lfo3_internal_depth > 0 || pRegion->LFO3ControlDepth > 0);
380                    break;
381                case ::gig::lfo3_ctrl_internal_aftertouch:
382                    lfo3_internal_depth  = pRegion->LFO3InternalDepth;
383                    pLFO1->ExtController = 128;
384                    bLFO3Enabled         = (lfo3_internal_depth > 0 || pRegion->LFO3ControlDepth > 0);
385                    break;
386                default:
387                    lfo3_internal_depth  = 0;
388                    pLFO3->ExtController = 0; // no external controller
389                    bLFO3Enabled         = false;
390            }
391            if (bLFO3Enabled) {
392                pLFO3->trigger(pRegion->LFO3Frequency,
393                               start_level_mid,
394                               lfo3_internal_depth,
395                               pRegion->LFO3ControlDepth,
396                               false,
397                               pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
398                pLFO3->update(pLFO3->ExtController ? GetSfzEngineChannel()->ControllerTable[pLFO3->ExtController] : 0);
399            }*/ // TODO: ^^^
400            bLFO3Enabled = false;
401      }      }
402    
403      /**      float Voice::CalculateCutoffBase(uint8_t MIDIKeyVelocity) {
404       *  Resets voice variables. Should only be called if rendering process is          /*float cutoff = pRegion->GetVelocityCutoff(MIDIKeyVelocity);
405       *  suspended / not running.          if (pRegion->VCFKeyboardTracking) {
406       */              cutoff *= exp((MIDIKeyVelocity - pRegion->VCFKeyboardTrackingBreakpoint) * 0.057762265f); // (ln(2) / 12)
     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);  
             }  
407          }          }
408            return cutoff;*/ // TODO: ^^^
409            return 1.0f;
410      }      }
411    
412      /**      float Voice::CalculateFinalCutoff(float cutoffBase) {
413       * Process given list of MIDI control change and pitch bend events for          /*int cvalue;
414       * the given time.          if (VCFCutoffCtrl.controller) {
415       *              cvalue = GetSfzEngineChannel()->ControllerTable[VCFCutoffCtrl.controller];
416       * @param itEvent - iterator pointing to the next event to be processed              if (pRegion->VCFCutoffControllerInvert) cvalue = 127 - cvalue;
417       * @param End     - youngest time stamp where processing should be stopped              // VCFVelocityScale in this case means Minimum cutoff
418       */              if (cvalue < pRegion->VCFVelocityScale) cvalue = pRegion->VCFVelocityScale;
     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 (pRegion->AttenuationController.type == ::gig::attenuation_ctrl_t::type_controlchange &&  
                     itEvent->Param.CC.Controller == pRegion->AttenuationController.controller_number) {  
                     CrossfadeSmoother.update(Engine::CrossfadeCurve[CrossfadeAttenuation(itEvent->Param.CC.Value)]);  
                 }*/ // TODO:  
                 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);  
             }  
419          }          }
420      }          else {
421                cvalue = pRegion->VCFCutoff;
422      void Voice::processPitchEvent(RTList<Event>::Iterator& itEvent) {          }
423          PitchBend = RTMath::CentsToFreqRatio(itEvent->Param.Pitch.Pitch * PitchBendRange);          float fco = cutoffBase * float(cvalue);
424      }          if (fco > 127.0f) fco = 127.0f;
   
     void Voice::processCutoffEvent(RTList<Event>::Iterator& itEvent) {  
         /*int ccvalue = itEvent->Param.CC.Value;  
         if (VCFCutoffCtrl.value == ccvalue) return;  
         VCFCutoffCtrl.value == ccvalue;  
         if (pRegion->VCFCutoffControllerInvert)  ccvalue = 127 - ccvalue;  
         if (ccvalue < pRegion->VCFVelocityScale) ccvalue = pRegion->VCFVelocityScale;  
         float cutoff = CutoffBase * float(ccvalue);  
         if (cutoff > 127.0f) cutoff = 127.0f;  
425    
426          VCFCutoffCtrl.fvalue = cutoff; // needed for initialization of fFinalCutoff next time          return fco;*/ // TODO: ^^^
427          fFinalCutoff = cutoff;*/ // TODO: ^^^          return 127.0f;
428      }      }
429    
430      void Voice::processResonanceEvent(RTList<Event>::Iterator& itEvent) {      uint8_t Voice::GetVCFCutoffCtrl() {
431          // convert absolute controller value to differential          /*uint8_t ctrl;
432          const int ctrldelta = itEvent->Param.CC.Value - VCFResonanceCtrl.value;          switch (pRegion->VCFCutoffController) {
433          VCFResonanceCtrl.value = itEvent->Param.CC.Value;              case ::gig::vcf_cutoff_ctrl_modwheel:
434          const float resonancedelta = (float) ctrldelta;                  ctrl = 1;
435          fFinalResonance += resonancedelta;                  break;
436          // needed for initialization of parameter              case ::gig::vcf_cutoff_ctrl_effect1:
437          VCFResonanceCtrl.fvalue = itEvent->Param.CC.Value;                  ctrl = 12;
438      }                  break;
439                case ::gig::vcf_cutoff_ctrl_effect2:
440      /**                  ctrl = 13;
441       *  Synthesizes the current audio fragment for this voice.                  break;
442       *              case ::gig::vcf_cutoff_ctrl_breath:
443       *  @param Samples - number of sample points to be rendered in this audio                  ctrl = 2;
444       *                   fragment cycle                  break;
445       *  @param pSrc    - pointer to input sample data              case ::gig::vcf_cutoff_ctrl_foot:
446       *  @param Skip    - number of sample points to skip in output buffer                  ctrl = 4;
447       */                  break;
448      void Voice::Synthesize(uint Samples, sample_t* pSrc, uint Skip) {              case ::gig::vcf_cutoff_ctrl_sustainpedal:
449          finalSynthesisParameters.pOutLeft  = &pEngineChannel->pChannelLeft->Buffer()[Skip];                  ctrl = 64;
450          finalSynthesisParameters.pOutRight = &pEngineChannel->pChannelRight->Buffer()[Skip];                  break;
451          finalSynthesisParameters.pSrc      = pSrc;              case ::gig::vcf_cutoff_ctrl_softpedal:
452                    ctrl = 67;
453          RTList<Event>::Iterator itCCEvent = pEngineChannel->pEvents->first();                  break;
454          RTList<Event>::Iterator itNoteEvent = pEngineChannel->pMIDIKeyInfo[MIDIKey].pEvents->first();              case ::gig::vcf_cutoff_ctrl_genpurpose7:
455                            ctrl = 82;
456                    break;
457          if (itTriggerEvent) { // skip events that happened before this voice was triggered              case ::gig::vcf_cutoff_ctrl_genpurpose8:
458              while (itCCEvent && itCCEvent->FragmentPos() <= Skip) ++itCCEvent;                  ctrl = 83;
459              // we can't simply compare the timestamp here, because note events                  break;
460              // might happen on the same time stamp, so we have to deal on the              case ::gig::vcf_cutoff_ctrl_aftertouch:
461              // actual sequence the note events arrived instead (see bug #112)                  ctrl = 128;
462              for (; itNoteEvent; ++itNoteEvent) {                  break;
463                  if (itTriggerEvent == itNoteEvent) {              case ::gig::vcf_cutoff_ctrl_none:
464                      ++itNoteEvent;              default:
465                      break;                  ctrl = 0;
466                  }                  break;
             }  
         }  
   
         uint killPos;  
         if (itKillEvent) {  
             int maxFadeOutPos = Samples - pEngine->MinFadeOutSamples;  
             if (maxFadeOutPos < 0) {  
                 // There's not enough space in buffer to do a fade out  
                 // from max volume (this can only happen for audio  
                 // drivers that use Samples < MaxSamplesPerCycle).  
                 // End the EG1 here, at pos 0, with a shorter max fade  
                 // out time.  
                 EG1.enterFadeOutStage(Samples / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);  
                 itKillEvent = Pool<Event>::Iterator();  
             } else {  
                 killPos = RTMath::Min(itKillEvent->FragmentPos(), maxFadeOutPos);  
             }  
467          }          }
468    
469          uint i = Skip;          return ctrl;*/ // TODO: ^^^
470          /*while (i < Samples) {          return 0;
             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();  
             }  
   
             // process envelope generators  
             switch (EG1.getSegmentType()) {  
                 case EGADSR::segment_lin:  
                     fFinalVolume *= EG1.processLin();  
                     break;  
                 case EGADSR::segment_exp:  
                     fFinalVolume *= EG1.processExp();  
                     break;  
                 case EGADSR::segment_end:  
                     fFinalVolume *= EG1.getLevel();  
                     break; // noop  
             }  
             switch (EG2.getSegmentType()) {  
                 case EGADSR::segment_lin:  
                     fFinalCutoff *= EG2.processLin();  
                     break;  
                 case EGADSR::segment_exp:  
                     fFinalCutoff *= EG2.processExp();  
                     break;  
                 case EGADSR::segment_end:  
                     fFinalCutoff *= EG2.getLevel();  
                     break; // noop  
             }  
             if (EG3.active()) finalSynthesisParameters.fFinalPitch *= EG3.render();  
   
             // process low frequency oscillators  
             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);  
             }  
   
             // do we need resampling?  
             const float __PLUS_ONE_CENT  = 1.000577789506554859250142541782224725466f;  
             const float __MINUS_ONE_CENT = 0.9994225441413807496009516495583113737666f;  
             const bool bResamplingRequired = !(finalSynthesisParameters.fFinalPitch <= __PLUS_ONE_CENT &&  
                                                finalSynthesisParameters.fFinalPitch >= __MINUS_ONE_CENT);  
             SYNTHESIS_MODE_SET_INTERPOLATE(SynthesisMode, bResamplingRequired);  
   
             fFinalVolume = 1.0;  
             // prepare final synthesis parameters structure  
             finalSynthesisParameters.uiToGo            = iSubFragmentEnd - i;  
 #ifdef CONFIG_INTERPOLATE_VOLUME  
             finalSynthesisParameters.fFinalVolumeDeltaLeft  = 1;  
             finalSynthesisParameters.fFinalVolumeDeltaRight = 1;  
 #else  
             finalSynthesisParameters.fFinalVolumeLeft  =1;  
             finalSynthesisParameters.fFinalVolumeRight =1;  
 #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 (pRegion->SampleLoops && Pos <= pRegion->pSampleLoops[0].LoopStart && pRegion->pSampleLoops[0].LoopStart < newPos) {  
                     EG1.update(EGADSR::event_hold_end, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);  
                 } // TODO:  
   
                 EG1.increment(1);  
                 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  
   
             Pos = newPos;  
             i = iSubFragmentEnd;  
         }*/  
   
             int32_t* pSrc2 = NULL;  
             if((pSample->GetFrameSize() / pSample->GetChannelCount()) == 4) pSrc2 = (int32_t*)pSrc;  
             for(int j = 0; j < Samples; j++) {  
                 int lp, rp;  
                 if(pSample->GetChannelCount() == 1) {  
                     lp = (int)(finalSynthesisParameters.dPos + j);  
                     rp = (int)(finalSynthesisParameters.dPos + j);  
                 } else {  
                     lp = (int)(finalSynthesisParameters.dPos + j) * 2;  
                     rp = (int)(finalSynthesisParameters.dPos + j) * 2 + 1;  
                 }  
                 float left, right;  
                 if(pSrc2 != NULL) {  
                     left = pSrc2[lp]; right = pSrc2[rp];  
                 } else {  
                     left = pSrc[lp]; right = pSrc[rp];  
                 }  
                 float f = (pSrc2 == NULL ? 32768.0f : 32768.0f * 65536.0f);  
                 left /= f; right /= f;  
                 finalSynthesisParameters.pOutLeft[j] += left;  
                 finalSynthesisParameters.pOutRight[j] += right;  
             }  
             finalSynthesisParameters.dPos += Samples;  
471      }      }
472    
473      /** @brief Update current portamento position.      uint8_t Voice::GetVCFResonanceCtrl() {
474       *          /*uint8_t ctrl;
475       * Will be called when portamento mode is enabled to get the final          switch (pRegion->VCFResonanceController) {
476       * portamento position of this active voice from where the next voice(s)              case ::gig::vcf_res_ctrl_genpurpose3:
477       * might continue to slide on.                  ctrl = 18;
478       *                  break;
479       * @param itNoteOffEvent - event which causes this voice to die soon              case ::gig::vcf_res_ctrl_genpurpose4:
480       */                  ctrl = 19;
481      void Voice::UpdatePortamentoPos(Pool<Event>::Iterator& itNoteOffEvent) {                  break;
482          const float fFinalEG3Level = EG3.level(itNoteOffEvent->FragmentPos());              case ::gig::vcf_res_ctrl_genpurpose5:
483          pEngineChannel->PortamentoPos = (float) MIDIKey + RTMath::FreqRatioToCents(fFinalEG3Level) * 0.01f;                  ctrl = 80;
484      }                  break;
485                case ::gig::vcf_res_ctrl_genpurpose6:
486      /**                  ctrl = 81;
487       *  Immediately kill the voice. This method should not be used to kill                  break;
488       *  a normal, active voice, because it doesn't take care of things like              case ::gig::vcf_res_ctrl_none:
489       *  fading down the volume level to avoid clicks and regular processing              default:
490       *  until the kill event actually occured!                  ctrl = 0;
      *  
      * If it's necessary to know when the voice's disk stream was actually  
      * deleted, then one can set the optional @a bRequestNotification  
      * parameter and this method will then return the handle of the disk  
      * stream (unique identifier) and one can use this handle to poll the  
      * disk thread if this stream has been deleted. In any case this method  
      * will return immediately and will not block until the stream actually  
      * was deleted.  
      *  
      * @param bRequestNotification - (optional) whether the disk thread shall  
      *                                provide a notification once it deleted  
      *                               the respective disk stream  
      *                               (default=false)  
      * @returns handle to the voice's disk stream or @c Stream::INVALID_HANDLE  
      *          if the voice did not use a disk stream at all  
      * @see Kill()  
      */  
     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;  
491          }          }
         Reset();  
         return hStream;  
     }  
492    
493      /**          return ctrl;*/ // TODO: ^^^
494       *  Kill the voice in regular sense. Let the voice render audio until          return 0;
495       *  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  
496    
497          if (itTriggerEvent && itKillEvent->FragmentPos() <= itTriggerEvent->FragmentPos()) return;      float Voice::GetReleaseTriggerAttenuation(float noteLength) {
498          this->itKillEvent = itKillEvent;          // pow(10, -rt_decay * noteLength / 20):
499            return expf(RgnInfo.ReleaseTriggerDecay * noteLength);
500      }      }
501    
502  }} // namespace LinuxSampler::sfz  }} // namespace LinuxSampler::sfz
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