/[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 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 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    
30  #include "Voice.h"  #define LN_10_DIV_20 0.115129254649702
31    
32  namespace LinuxSampler { namespace sfz {  namespace LinuxSampler { namespace sfz {
33    
     typedef LinuxSampler::gig::Profiler Profiler; // TODO: remove  
   
34      Voice::Voice() {      Voice::Voice() {
35          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();  
36      }      }
37    
38      Voice::~Voice() {      Voice::~Voice() {
39          if (pLFO1) delete pLFO1;  
40          if (pLFO2) delete pLFO2;      }
41          if (pLFO3) delete pLFO3;  
42        EngineChannel* Voice::GetSfzEngineChannel() {
43            return static_cast<EngineChannel*>(pEngineChannel);
44      }      }
45    
46      void Voice::SetEngine(LinuxSampler::Engine* pEngine) {      void Voice::SetEngine(LinuxSampler::Engine* pEngine) {
# Line 67  namespace LinuxSampler { namespace sfz { Line 50  namespace LinuxSampler { namespace sfz {
50          dmsg(6,("Voice::SetEngine()\n"));          dmsg(6,("Voice::SetEngine()\n"));
51      }      }
52    
53      /**      Voice::SampleInfo Voice::GetSampleInfo() {
54       *  Initializes and triggers the voice, a disk stream will be launched if          SampleInfo si;
55       *  needed.          si.SampleRate       = pSample->GetSampleRate();
56       *          si.ChannelCount     = pSample->GetChannelCount();
57       *  @param pEngineChannel - engine channel on which this voice was ordered          si.FrameSize        = pSample->GetFrameSize();
58       *  @param itNoteOnEvent  - event that caused triggering of this voice          si.BitDepth         = (pSample->GetFrameSize() / pSample->GetChannelCount()) * 8;
59       *  @param PitchBend      - MIDI detune factor (-8192 ... +8191)          si.TotalFrameCount  = pSample->GetTotalFrameCount();
60       *  @param pRegion        - points to the dimension region which provides sample wave(s) and articulation data  
61       *  @param VoiceType      - type of this voice          si.HasLoops       = pRegion->HasLoop();
62       *  @param iKeyGroup      - a value > 0 defines a key group in which this voice is member of          si.LoopStart      = pRegion->GetLoopStart();
63       *  @returns 0 on success, a value < 0 if the voice wasn't triggered          si.LoopLength     = pRegion->GetLoopEnd() - pRegion->GetLoopStart();
64       *           (either due to an error or e.g. because no region is          si.LoopPlayCount  = pRegion->GetLoopCount();
65       *           defined for the given key)          si.Unpitched      = pRegion->pitch_keytrack == 0;
66       */          return si;
67      int Voice::Trigger(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itNoteOnEvent, int PitchBend, ::sfz::Region* pRegion, type_t VoiceType, int iKeyGroup) {      }
68          this->pEngineChannel = pEngineChannel;  
69          this->pRegion        = pRegion;      Voice::RegionInfo Voice::GetRegionInfo() {
70          Orphan = false;          RegionInfo ri;
71            ri.UnityNote = pRegion->pitch_keycenter;
72          #if CONFIG_DEVMODE          ri.FineTune  = pRegion->tune + pRegion->transpose * 100;
73          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
74              dmsg(1,("Voice::Trigger(): ERROR, TriggerDelay > Totalsamples\n"));          ri.SampleStartOffset = 0; // TODO:
75          }  
76          #endif // CONFIG_DEVMODE          ri.EG1PreAttack        = pRegion->ampeg_start * 10;
77            ri.EG1Attack           = pRegion->ampeg_attack;
78            ri.EG1Hold             = pRegion->ampeg_hold;
79            ri.EG1Decay1           = pRegion->ampeg_decay;
80            ri.EG1Decay2           = pRegion->ampeg_decay;
81            ri.EG1Sustain          = pRegion->ampeg_sustain * 10;
82            ri.EG1InfiniteSustain  = true;
83            ri.EG1Release          = pRegion->ampeg_release;
84    
85            ri.EG2PreAttack        = pRegion->fileg_start * 10;
86            ri.EG2Attack           = pRegion->fileg_attack;
87            //ri.EG2Hold             = pRegion->fileg_hold; // TODO:
88            ri.EG2Decay1           = pRegion->fileg_decay;
89            ri.EG2Decay2           = pRegion->fileg_decay;
90            ri.EG2Sustain          = pRegion->fileg_sustain * 10;
91            ri.EG2InfiniteSustain  = true;
92            ri.EG2Release          = pRegion->fileg_release;
93    
94            ri.EG3Attack     = pRegion->pitcheg_attack;
95            ri.EG3Depth      = 0; // TODO:
96            ri.VCFEnabled    = pRegion->cutoff;
97            switch (pRegion->fil_type) {
98            case ::sfz::LPF_1P:
99                ri.VCFType = Filter::vcf_type_1p_lowpass;
100                break;
101            case ::sfz::LPF_2P:
102                ri.VCFType = Filter::vcf_type_2p_lowpass;
103                break;
104            case ::sfz::LPF_4P:
105                ri.VCFType = Filter::vcf_type_4p_lowpass;
106                break;
107            case ::sfz::LPF_6P:
108                ri.VCFType = Filter::vcf_type_6p_lowpass;
109                break;
110            case ::sfz::HPF_1P:
111                ri.VCFType = Filter::vcf_type_1p_highpass;
112                break;
113            case ::sfz::HPF_2P:
114                ri.VCFType = Filter::vcf_type_2p_highpass;
115                break;
116            case ::sfz::HPF_4P:
117                ri.VCFType = Filter::vcf_type_4p_highpass;
118                break;
119            case ::sfz::HPF_6P:
120                ri.VCFType = Filter::vcf_type_6p_highpass;
121                break;
122            case ::sfz::BPF_1P:
123            case ::sfz::BPF_2P:
124                ri.VCFType = Filter::vcf_type_2p_bandpass;
125                break;
126            case ::sfz::BRF_1P:
127            case ::sfz::BRF_2P:
128                ri.VCFType = Filter::vcf_type_2p_bandreject;
129                break;
130            case ::sfz::APF_1P:
131            case ::sfz::PKF_2P:
132            default:
133                ri.VCFEnabled = false;
134                break;
135            }
136    
137            ri.VCFResonance  = pRegion->resonance;
138    
139            // rt_decay is in dB. Precalculate a suitable value for exp in
140            // GetReleaseTriggerAttenuation: -ln(10) / 20 * rt_decay
141            ri.ReleaseTriggerDecay = -LN_10_DIV_20 * pRegion->rt_decay;
142    
143            return ri;
144        }
145    
146        Voice::InstrumentInfo Voice::GetInstrumentInfo() {
147            InstrumentInfo ii;
148            ii.FineTune = 0; // TODO:
149            ii.PitchbendRange = 2; // TODO:
150    
151            return ii;
152        }
153    
154        double Voice::GetSampleAttenuation() {
155            return exp(LN_10_DIV_20 * pRegion->volume);
156        }
157    
158        double Voice::GetVelocityAttenuation(uint8_t MIDIKeyVelocity) {
159            return pRegion->amp_velcurve[MIDIKeyVelocity];
160        }
161    
162        double Voice::GetVelocityRelease(uint8_t MIDIKeyVelocity) {
163            return 0.9; // TODO:
164        }
165    
166        void Voice::ProcessCCEvent(RTList<Event>::Iterator& itEvent) {
167            /*if (itEvent->Type == Event::type_control_change && itEvent->Param.CC.Controller) { // if (valid) MIDI control change event
168                if (pRegion->AttenuationController.type == ::gig::attenuation_ctrl_t::type_controlchange &&
169                    itEvent->Param.CC.Controller == pRegion->AttenuationController.controller_number) {
170                    CrossfadeSmoother.update(AbstractEngine::CrossfadeCurve[CrossfadeAttenuation(itEvent->Param.CC.Value)]);
171                }
172            }*/ // TODO: ^^^
173        }
174    
175          Type            = VoiceType;      void Voice::ProcessCutoffEvent(RTList<Event>::Iterator& itEvent) {
176          MIDIKey         = itNoteOnEvent->Param.Note.Key;          int ccvalue = itEvent->Param.CC.Value;
177          PlaybackState   = playback_state_init; // mark voice as triggered, but no audio rendered yet          if (VCFCutoffCtrl.value == ccvalue) return;
178          Delay           = itNoteOnEvent->FragmentPos();          VCFCutoffCtrl.value = ccvalue;
         itTriggerEvent  = itNoteOnEvent;  
         itKillEvent     = Pool<Event>::Iterator();  
         KeyGroup        = iKeyGroup;  
         pSample         = pRegion->pSample; // sample won't change until the voice is finished  
   
         /*// 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: ^^^  
179    
180          // select channel mode (mono or stereo)          float cutoff = CutoffBase * RTMath::CentsToFreqRatioUnlimited(
181          SYNTHESIS_MODE_SET_CHANNELS(SynthesisMode, pSample->GetChannelCount() == 2);              ccvalue / 127.0f * pRegion->cutoff_oncc[VCFCutoffCtrl.controller]);
182          // select bit depth (16 or 24)          if (cutoff > 0.49 * pEngine->SampleRate) cutoff = 0.49 * pEngine->SampleRate;
         SYNTHESIS_MODE_SET_BITDEPTH24(SynthesisMode, (pSample->GetFrameSize() / pSample->GetChannelCount()) > 2);  
183    
184          // get starting crossfade volume level          VCFCutoffCtrl.fvalue = cutoff; // needed for initialization of fFinalCutoff next time
185            fFinalCutoff = cutoff;
186        }
187    
188        double Voice::CalculateCrossfadeVolume(uint8_t MIDIKeyVelocity) {
189          /*float crossfadeVolume;          /*float crossfadeVolume;
190          switch (pRegion->AttenuationController.type) {          switch (pRegion->AttenuationController.type) {
191              case ::gig::attenuation_ctrl_t::type_channelaftertouch:              case ::gig::attenuation_ctrl_t::type_channelaftertouch:
192                  crossfadeVolume = Engine::CrossfadeCurve[CrossfadeAttenuation(pEngineChannel->ControllerTable[128])];                  crossfadeVolume = Engine::CrossfadeCurve[CrossfadeAttenuation(GetSfzEngineChannel()->ControllerTable[128])];
193                  break;                  break;
194              case ::gig::attenuation_ctrl_t::type_velocity:              case ::gig::attenuation_ctrl_t::type_velocity:
195                  crossfadeVolume = Engine::CrossfadeCurve[CrossfadeAttenuation(itNoteOnEvent->Param.Note.Velocity)];                  crossfadeVolume = Engine::CrossfadeCurve[CrossfadeAttenuation(MIDIKeyVelocity)];
196                  break;                  break;
197              case ::gig::attenuation_ctrl_t::type_controlchange: //FIXME: currently not sample accurate              case ::gig::attenuation_ctrl_t::type_controlchange: //FIXME: currently not sample accurate
198                  crossfadeVolume = Engine::CrossfadeCurve[CrossfadeAttenuation(pEngineChannel->ControllerTable[pRegion->AttenuationController.controller_number])];                  crossfadeVolume = Engine::CrossfadeCurve[CrossfadeAttenuation(GetSfzEngineChannel()->ControllerTable[pRegion->AttenuationController.controller_number])];
199                  break;                  break;
200              case ::gig::attenuation_ctrl_t::type_none: // no crossfade defined              case ::gig::attenuation_ctrl_t::type_none: // no crossfade defined
201              default:              default:
202                  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);  
203          }          }
204    
205            return crossfadeVolume;*/ // TODO: ^^^
206            return 1.0f;
207        }
208    
209          // setup EG 3 (VCO EG)      double Voice::GetEG1ControllerValue(uint8_t MIDIKeyVelocity) {
210          {          /*double eg1controllervalue = 0;
211              // 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) {
212              bool  bPortamento = pEngineChannel->PortamentoMode && pEngineChannel->PortamentoPos >= 0.0f;              case ::gig::eg1_ctrl_t::type_none: // no controller defined
213              float eg3depth = (bPortamento)                  eg1controllervalue = 0;
214                                   ? RTMath::CentsToFreqRatio((pEngineChannel->PortamentoPos - (float) MIDIKey) * 100)                  break;
215                                   : RTMath::CentsToFreqRatio(pRegion->EG3Depth);              case ::gig::eg1_ctrl_t::type_channelaftertouch:
216              float eg3time = (bPortamento)                  eg1controllervalue = GetSfzEngineChannel()->ControllerTable[128];
217                                  ? pEngineChannel->PortamentoTime                  break;
218                                  : pRegion->EG3Attack;              case ::gig::eg1_ctrl_t::type_velocity:
219              EG3.trigger(eg3depth, eg3time, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);                  eg1controllervalue = MIDIKeyVelocity;
220              dmsg(5,("PortamentoPos=%f, depth=%f, time=%f\n", pEngineChannel->PortamentoPos, eg3depth, eg3time));                  break;
221                case ::gig::eg1_ctrl_t::type_controlchange: // MIDI control change controller
222                    eg1controllervalue = GetSfzEngineChannel()->ControllerTable[pRegion->EG1Controller.controller_number];
223                    break;
224          }          }
225            if (pRegion->EG1ControllerInvert) eg1controllervalue = 127 - eg1controllervalue;
226    
227            return eg1controllervalue;*/ // TODO: ^^^
228            return 0;
229        }
230    
231          // setup LFO 1 (VCA LFO)      Voice::EGInfo Voice::CalculateEG1ControllerInfluence(double eg1ControllerValue) {
232          {          /*EGInfo eg;
233              uint16_t lfo1_internal_depth;          // (eg1attack is different from the others)
234              switch (pRegion->LFO1Controller) {          eg.Attack  = (pRegion->EG1ControllerAttackInfluence)  ?
235                  case ::gig::lfo1_ctrl_internal:              1 + 0.031 * (double) (pRegion->EG1ControllerAttackInfluence == 1 ?
236                      lfo1_internal_depth  = pRegion->LFO1InternalDepth;                                    1 : 1 << pRegion->EG1ControllerAttackInfluence) * eg1ControllerValue : 1.0;
237                      pLFO1->ExtController = 0; // no external controller          eg.Decay   = (pRegion->EG1ControllerDecayInfluence)   ? 1 + 0.00775 * (double) (1 << pRegion->EG1ControllerDecayInfluence)   * eg1ControllerValue : 1.0;
238                      bLFO1Enabled         = (lfo1_internal_depth > 0);          eg.Release = (pRegion->EG1ControllerReleaseInfluence) ? 1 + 0.00775 * (double) (1 << pRegion->EG1ControllerReleaseInfluence) * eg1ControllerValue : 1.0;
239                      break;  
240                  case ::gig::lfo1_ctrl_modwheel:          return eg;*/ // TODO: ^^^
241                      lfo1_internal_depth  = 0;          EGInfo eg;
242                      pLFO1->ExtController = 1; // MIDI controller 1          eg.Attack = 1.0;
243                      bLFO1Enabled         = (pRegion->LFO1ControlDepth > 0);          eg.Decay = 1.0;
244                      break;          eg.Release = 1.0;
245                  case ::gig::lfo1_ctrl_breath:          return eg;
246                      lfo1_internal_depth  = 0;      }
247                      pLFO1->ExtController = 2; // MIDI controller 2  
248                      bLFO1Enabled         = (pRegion->LFO1ControlDepth > 0);      void Voice::TriggerEG1(const EGInfo& egInfo, double velrelease, double velocityAttenuation, uint sampleRate, uint8_t velocity) {
249                      break;  
250                  case ::gig::lfo1_ctrl_internal_modwheel:          // TODO: controller modulation
251                      lfo1_internal_depth  = pRegion->LFO1InternalDepth;  
252                      pLFO1->ExtController = 1; // MIDI controller 1          // first check if there is a v2 EG for amplitude
253                      bLFO1Enabled         = (lfo1_internal_depth > 0 || pRegion->LFO1ControlDepth > 0);          for (int i = 0 ; i < pRegion->eg.size() ; i++) {
254                      break;              if (pRegion->eg[i].amplitude > 0) {
255                  case ::gig::lfo1_ctrl_internal_breath:                  // TODO: actually use the value of the amplitude parameter
256                      lfo1_internal_depth  = pRegion->LFO1InternalDepth;                  pEG1 = &EG1;
257                      pLFO1->ExtController = 2; // MIDI controller 2                  EG1.trigger(pRegion->eg[i], sampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE, velocity);
258                      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);  
259              }              }
260          }          }
261    
262            // otherwise use the v1 EGADSR
263          // setup LFO 2 (VCF Cutoff LFO)          pEG1 = &EGADSR1;
264          {          EGADSR1.trigger(uint(RgnInfo.EG1PreAttack),
265              uint16_t lfo2_internal_depth;                          RgnInfo.EG1Attack,
266              switch (pRegion->LFO2Controller) {                          RgnInfo.EG1Hold,
267                  case ::gig::lfo2_ctrl_internal:                          RgnInfo.EG1Decay1,
268                      lfo2_internal_depth  = pRegion->LFO2InternalDepth;                          uint(RgnInfo.EG1Sustain),
269                      pLFO2->ExtController = 0; // no external controller                          RgnInfo.EG1Release,
270                      bLFO2Enabled         = (lfo2_internal_depth > 0);                          sampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
271                      break;       }
272                  case ::gig::lfo2_ctrl_modwheel:  
273                      lfo2_internal_depth  = 0;       double Voice::GetEG2ControllerValue(uint8_t MIDIKeyVelocity) {
274                      pLFO2->ExtController = 1; // MIDI controller 1          /*double eg2controllervalue = 0;
275                      bLFO2Enabled         = (pRegion->LFO2ControlDepth > 0);          switch (pRegion->EG2Controller.type) {
276                      break;              case ::gig::eg2_ctrl_t::type_none: // no controller defined
277                  case ::gig::lfo2_ctrl_foot:                  eg2controllervalue = 0;
278                      lfo2_internal_depth  = 0;                  break;
279                      pLFO2->ExtController = 4; // MIDI controller 4              case ::gig::eg2_ctrl_t::type_channelaftertouch:
280                      bLFO2Enabled         = (pRegion->LFO2ControlDepth > 0);                  eg2controllervalue = GetSfzEngineChannel()->ControllerTable[128];
281                      break;                  break;
282                  case ::gig::lfo2_ctrl_internal_modwheel:              case ::gig::eg2_ctrl_t::type_velocity:
283                      lfo2_internal_depth  = pRegion->LFO2InternalDepth;                  eg2controllervalue = MIDIKeyVelocity;
284                      pLFO2->ExtController = 1; // MIDI controller 1                  break;
285                      bLFO2Enabled         = (lfo2_internal_depth > 0 || pRegion->LFO2ControlDepth > 0);              case ::gig::eg2_ctrl_t::type_controlchange: // MIDI control change controller
286                      break;                  eg2controllervalue = GetSfzEngineChannel()->ControllerTable[pRegion->EG2Controller.controller_number];
287                  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);  
             }  
288          }          }
289            if (pRegion->EG2ControllerInvert) eg2controllervalue = 127 - eg2controllervalue;
290    
291            return eg2controllervalue;*/ // TODO: ^^^
292            return 0;
293        }
294    
295          // setup LFO 3 (VCO LFO)      Voice::EGInfo Voice::CalculateEG2ControllerInfluence(double eg2ControllerValue) {
296          {          /*EGInfo eg;
297              uint16_t lfo3_internal_depth;          eg.Attack  = (pRegion->EG2ControllerAttackInfluence)  ? 1 + 0.00775 * (double) (1 << pRegion->EG2ControllerAttackInfluence)  * eg2ControllerValue : 1.0;
298              switch (pRegion->LFO3Controller) {          eg.Decay   = (pRegion->EG2ControllerDecayInfluence)   ? 1 + 0.00775 * (double) (1 << pRegion->EG2ControllerDecayInfluence)   * eg2ControllerValue : 1.0;
299                  case ::gig::lfo3_ctrl_internal:          eg.Release = (pRegion->EG2ControllerReleaseInfluence) ? 1 + 0.00775 * (double) (1 << pRegion->EG2ControllerReleaseInfluence) * eg2ControllerValue : 1.0;
                     lfo3_internal_depth  = pRegion->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         = (pRegion->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  = pRegion->LFO3InternalDepth;  
                     pLFO3->ExtController = 1; // MIDI controller 1  
                     bLFO3Enabled         = (lfo3_internal_depth > 0 || pRegion->LFO3ControlDepth > 0);  
                     break;  
                 case ::gig::lfo3_ctrl_internal_aftertouch:  
                     lfo3_internal_depth  = pRegion->LFO3InternalDepth;  
                     pLFO1->ExtController = 128;  
                     bLFO3Enabled         = (lfo3_internal_depth > 0 || pRegion->LFO3ControlDepth > 0);  
                     break;  
                 default:  
                     lfo3_internal_depth  = 0;  
                     pLFO3->ExtController = 0; // no external controller  
                     bLFO3Enabled         = false;  
             }  
             if (bLFO3Enabled) {  
                 pLFO3->trigger(pRegion->LFO3Frequency,  
                                start_level_mid,  
                                lfo3_internal_depth,  
                                pRegion->LFO3ControlDepth,  
                                false,  
                                pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);  
                 pLFO3->update(pLFO3->ExtController ? pEngineChannel->ControllerTable[pLFO3->ExtController] : 0);  
             }  
         }*/ // TODO: ^^^  
   
   
         /*#if CONFIG_FORCE_FILTER  
         const bool bUseFilter = true;  
         #else // use filter only if instrument file told so  
         const bool bUseFilter = pRegion->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 (pRegion->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  
300    
301              #ifdef CONFIG_OVERRIDE_RESONANCE_CTRL          return eg;*/ // TODO: ^^^
302              VCFResonanceCtrl.controller = CONFIG_OVERRIDE_RESONANCE_CTRL;          EGInfo eg;
303              #else // use the one defined in the instrument file          eg.Attack = 1.0;
304              switch (pRegion->VCFResonanceController) {          eg.Decay = 1.0;
305                  case ::gig::vcf_res_ctrl_genpurpose3:          eg.Release = 1.0;
306                      VCFResonanceCtrl.controller = 18;          return eg;
307                      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  
308    
309              #ifndef CONFIG_OVERRIDE_FILTER_TYPE      void Voice::TriggerEG2(const EGInfo& egInfo, double velrelease, double velocityAttenuation, uint sampleRate, uint8_t velocity) {
             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;  
310    
311              int cvalue;          // TODO: the sfz filter EG should modulate cents, not hertz,
312              if (VCFCutoffCtrl.controller) {          // so we can't use the EG or EGADSR as it is. Disable for now.
                 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;  
313    
314              // calculate resonance          pEG2 = &EGADSR2;
315              float resonance = (float) (VCFResonanceCtrl.controller ? VCFResonanceCtrl.value : pRegion->VCFResonance);          EGADSR2.trigger(0,
316                            0,
317                            false,
318                            0,
319                            1000,
320                            0,
321                            sampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
322        }
323    
324              VCFCutoffCtrl.fvalue    = cutoff;      void Voice::InitLFO1() {
325              VCFResonanceCtrl.fvalue = resonance;          /*uint16_t lfo1_internal_depth;
326          }          switch (pRegion->LFO1Controller) {
327          else {              case ::gig::lfo1_ctrl_internal:
328              VCFCutoffCtrl.controller    = 0;                  lfo1_internal_depth  = pRegion->LFO1InternalDepth;
329              VCFResonanceCtrl.controller = 0;                  pLFO1->ExtController = 0; // no external controller
330                    bLFO1Enabled         = (lfo1_internal_depth > 0);
331                    break;
332                case ::gig::lfo1_ctrl_modwheel:
333                    lfo1_internal_depth  = 0;
334                    pLFO1->ExtController = 1; // MIDI controller 1
335                    bLFO1Enabled         = (pRegion->LFO1ControlDepth > 0);
336                    break;
337                case ::gig::lfo1_ctrl_breath:
338                    lfo1_internal_depth  = 0;
339                    pLFO1->ExtController = 2; // MIDI controller 2
340                    bLFO1Enabled         = (pRegion->LFO1ControlDepth > 0);
341                    break;
342                case ::gig::lfo1_ctrl_internal_modwheel:
343                    lfo1_internal_depth  = pRegion->LFO1InternalDepth;
344                    pLFO1->ExtController = 1; // MIDI controller 1
345                    bLFO1Enabled         = (lfo1_internal_depth > 0 || pRegion->LFO1ControlDepth > 0);
346                    break;
347                case ::gig::lfo1_ctrl_internal_breath:
348                    lfo1_internal_depth  = pRegion->LFO1InternalDepth;
349                    pLFO1->ExtController = 2; // MIDI controller 2
350                    bLFO1Enabled         = (lfo1_internal_depth > 0 || pRegion->LFO1ControlDepth > 0);
351                    break;
352                default:
353                    lfo1_internal_depth  = 0;
354                    pLFO1->ExtController = 0; // no external controller
355                    bLFO1Enabled         = false;
356            }
357            if (bLFO1Enabled) {
358                pLFO1->trigger(pRegion->LFO1Frequency,
359                               start_level_min,
360                               lfo1_internal_depth,
361                               pRegion->LFO1ControlDepth,
362                               pRegion->LFO1FlipPhase,
363                               pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
364                pLFO1->update(pLFO1->ExtController ? GetSfzEngineChannel()->ControllerTable[pLFO1->ExtController] : 0);
365          }*/ // TODO: ^^^          }*/ // TODO: ^^^
366            bLFO1Enabled = false;
         return 0; // success  
367      }      }
368    
369      /**      void Voice::InitLFO2() {
370       *  Renders the audio data for this voice for the current audio fragment.          /*uint16_t lfo2_internal_depth;
371       *  The sample input data can either come from RAM (cached sample or sample          switch (pRegion->LFO2Controller) {
372       *  part) or directly from disk. The output signal will be rendered by              case ::gig::lfo2_ctrl_internal:
373       *  resampling / interpolation. If this voice is a disk streaming voice and                  lfo2_internal_depth  = pRegion->LFO2InternalDepth;
374       *  the voice completely played back the cached RAM part of the sample, it                  pLFO2->ExtController = 0; // no external controller
375       *  will automatically switch to disk playback for the next RenderAudio()                  bLFO2Enabled         = (lfo2_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;  
                     }  
                 }  
376                  break;                  break;
377                case ::gig::lfo2_ctrl_modwheel:
378              case playback_state_end:                  lfo2_internal_depth  = 0;
379                  std::cerr << "gig::Voice::Render(): entered with playback_state_end, this is a bug!\n" << std::flush;                  pLFO2->ExtController = 1; // MIDI controller 1
380                    bLFO2Enabled         = (pRegion->LFO2ControlDepth > 0);
381                  break;                  break;
382          }              case ::gig::lfo2_ctrl_foot:
383                    lfo2_internal_depth  = 0;
384          // Reset delay                  pLFO2->ExtController = 4; // MIDI controller 4
385          Delay = 0;                  bLFO2Enabled         = (pRegion->LFO2ControlDepth > 0);
386                    break;
387          itTriggerEvent = Pool<Event>::Iterator();              case ::gig::lfo2_ctrl_internal_modwheel:
388                    lfo2_internal_depth  = pRegion->LFO2InternalDepth;
389          // If sample stream or release stage finished, kill the voice                  pLFO2->ExtController = 1; // MIDI controller 1
390          if (PlaybackState == playback_state_end || EG1.getSegmentType() == EGADSR::segment_end) KillImmediately();                  bLFO2Enabled         = (lfo2_internal_depth > 0 || pRegion->LFO2ControlDepth > 0);
391                    break;
392                case ::gig::lfo2_ctrl_internal_foot:
393                    lfo2_internal_depth  = pRegion->LFO2InternalDepth;
394                    pLFO2->ExtController = 4; // MIDI controller 4
395                    bLFO2Enabled         = (lfo2_internal_depth > 0 || pRegion->LFO2ControlDepth > 0);
396                    break;
397                default:
398                    lfo2_internal_depth  = 0;
399                    pLFO2->ExtController = 0; // no external controller
400                    bLFO2Enabled         = false;
401            }
402            if (bLFO2Enabled) {
403                pLFO2->trigger(pRegion->LFO2Frequency,
404                               start_level_max,
405                               lfo2_internal_depth,
406                               pRegion->LFO2ControlDepth,
407                               pRegion->LFO2FlipPhase,
408                               pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
409                pLFO2->update(pLFO2->ExtController ? GetSfzEngineChannel()->ControllerTable[pLFO2->ExtController] : 0);
410            }*/ // TODO: ^^^
411            bLFO2Enabled = false;
412      }      }
413    
414      /**      void Voice::InitLFO3() {
415       *  Resets voice variables. Should only be called if rendering process is          /*uint16_t lfo3_internal_depth;
416       *  suspended / not running.          switch (pRegion->LFO3Controller) {
417       */              case ::gig::lfo3_ctrl_internal:
418      void Voice::Reset() {                  lfo3_internal_depth  = pRegion->LFO3InternalDepth;
419          finalSynthesisParameters.filterLeft.Reset();                  pLFO3->ExtController = 0; // no external controller
420          finalSynthesisParameters.filterRight.Reset();                  bLFO3Enabled         = (lfo3_internal_depth > 0);
421          DiskStreamRef.pStream = NULL;                  break;
422          DiskStreamRef.hStream = 0;              case ::gig::lfo3_ctrl_modwheel:
423          DiskStreamRef.State   = Stream::state_unused;                  lfo3_internal_depth  = 0;
424          DiskStreamRef.OrderID = 0;                  pLFO3->ExtController = 1; // MIDI controller 1
425          PlaybackState = playback_state_end;                  bLFO3Enabled         = (pRegion->LFO3ControlDepth > 0);
426          itTriggerEvent = Pool<Event>::Iterator();                  break;
427          itKillEvent    = Pool<Event>::Iterator();              case ::gig::lfo3_ctrl_aftertouch:
428      }                  lfo3_internal_depth  = 0;
429                    pLFO3->ExtController = 128;
430      /**                  bLFO3Enabled         = true;
431       * Process given list of MIDI note on, note off and sustain pedal events                  break;
432       * for the given time.              case ::gig::lfo3_ctrl_internal_modwheel:
433       *                  lfo3_internal_depth  = pRegion->LFO3InternalDepth;
434       * @param itEvent - iterator pointing to the next event to be processed                  pLFO3->ExtController = 1; // MIDI controller 1
435       * @param End     - youngest time stamp where processing should be stopped                  bLFO3Enabled         = (lfo3_internal_depth > 0 || pRegion->LFO3ControlDepth > 0);
436       */                  break;
437      void Voice::processTransitionEvents(RTList<Event>::Iterator& itEvent, uint End) {              case ::gig::lfo3_ctrl_internal_aftertouch:
438          for (; itEvent && itEvent->FragmentPos() <= End; ++itEvent) {                  lfo3_internal_depth  = pRegion->LFO3InternalDepth;
439              if (itEvent->Type == Event::type_release) {                  pLFO1->ExtController = 128;
440                  EG1.update(EGADSR::event_release, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);                  bLFO3Enabled         = (lfo3_internal_depth > 0 || pRegion->LFO3ControlDepth > 0);
441                  EG2.update(EGADSR::event_release, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);                  break;
442              } else if (itEvent->Type == Event::type_cancel_release) {              default:
443                  EG1.update(EGADSR::event_cancel_release, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);                  lfo3_internal_depth  = 0;
444                  EG2.update(EGADSR::event_cancel_release, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);                  pLFO3->ExtController = 0; // no external controller
445              }                  bLFO3Enabled         = false;
446          }          }
447            if (bLFO3Enabled) {
448                pLFO3->trigger(pRegion->LFO3Frequency,
449                               start_level_mid,
450                               lfo3_internal_depth,
451                               pRegion->LFO3ControlDepth,
452                               false,
453                               pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
454                pLFO3->update(pLFO3->ExtController ? GetSfzEngineChannel()->ControllerTable[pLFO3->ExtController] : 0);
455            }*/ // TODO: ^^^
456            bLFO3Enabled = false;
457      }      }
458    
459      /**      float Voice::CalculateCutoffBase(uint8_t MIDIKeyVelocity) {
460       * Process given list of MIDI control change and pitch bend events for          float cutoff = *pRegion->cutoff;
461       * the given time.          cutoff *= RTMath::CentsToFreqRatioUnlimited(
462       *              MIDIKeyVelocity / 127.0f * pRegion->fil_veltrack +
463       * @param itEvent - iterator pointing to the next event to be processed              (MIDIKey - pRegion->fil_keycenter) * pRegion->fil_keytrack);
464       * @param End     - youngest time stamp where processing should be stopped          return cutoff;
465       */      }
466      void Voice::processCCEvents(RTList<Event>::Iterator& itEvent, uint End) {  
467          for (; itEvent && itEvent->FragmentPos() <= End; ++itEvent) {      float Voice::CalculateFinalCutoff(float cutoffBase) {
468              if (itEvent->Type == Event::type_control_change &&          float cutoff;
469                  itEvent->Param.CC.Controller) { // if (valid) MIDI control change event          if (VCFCutoffCtrl.controller) {
470                  if (itEvent->Param.CC.Controller == VCFCutoffCtrl.controller) {              int ccvalue = GetSfzEngineChannel()->ControllerTable[VCFCutoffCtrl.controller];
471                      processCutoffEvent(itEvent);              cutoff = CutoffBase * RTMath::CentsToFreqRatioUnlimited(
472                  }                  ccvalue / 127.0f * pRegion->cutoff_oncc[VCFCutoffCtrl.controller]);
473                  if (itEvent->Param.CC.Controller == VCFResonanceCtrl.controller) {          } else {
474                      processResonanceEvent(itEvent);              cutoff = cutoffBase;
475                  }          }
476                  if (itEvent->Param.CC.Controller == pLFO1->ExtController) {          if (cutoff > 0.49 * pEngine->SampleRate) cutoff = 0.49 * pEngine->SampleRate;
477                      pLFO1->update(itEvent->Param.CC.Value);          return cutoff;
478                  }      }
479                  if (itEvent->Param.CC.Controller == pLFO2->ExtController) {  
480                      pLFO2->update(itEvent->Param.CC.Value);      uint8_t Voice::GetVCFCutoffCtrl() {
481                  }          // TODO: the sfz format allows several CC for the same
482                  if (itEvent->Param.CC.Controller == pLFO3->ExtController) {          // modulation destination. The Voice interface needs to be
483                      pLFO3->update(itEvent->Param.CC.Value);          // changed to support that.
484                  }          if (pRegion->cutoff_cc) return pRegion->cutoff_cc;
485                  /*if (pRegion->AttenuationController.type == ::gig::attenuation_ctrl_t::type_controlchange &&          else if (pRegion->cutoff_chanaft) return 128;
486                      itEvent->Param.CC.Controller == pRegion->AttenuationController.controller_number) {          return 0;
487                      CrossfadeSmoother.update(Engine::CrossfadeCurve[CrossfadeAttenuation(itEvent->Param.CC.Value)]);      }
488                  }*/ // TODO:  
489                  if (itEvent->Param.CC.Controller == 7) { // volume      uint8_t Voice::GetVCFResonanceCtrl() {
490                      VolumeSmoother.update(Engine::VolumeCurve[itEvent->Param.CC.Value]);          /*uint8_t ctrl;
491                  } else if (itEvent->Param.CC.Controller == 10) { // panpot          switch (pRegion->VCFResonanceController) {
492                      PanLeftSmoother.update(Engine::PanCurve[128 - itEvent->Param.CC.Value]);              case ::gig::vcf_res_ctrl_genpurpose3:
493                      PanRightSmoother.update(Engine::PanCurve[itEvent->Param.CC.Value]);                  ctrl = 18;
494                  }                  break;
495              } else if (itEvent->Type == Event::type_pitchbend) { // if pitch bend event              case ::gig::vcf_res_ctrl_genpurpose4:
496                  processPitchEvent(itEvent);                  ctrl = 19;
497              }                  break;
498                case ::gig::vcf_res_ctrl_genpurpose5:
499                    ctrl = 80;
500                    break;
501                case ::gig::vcf_res_ctrl_genpurpose6:
502                    ctrl = 81;
503                    break;
504                case ::gig::vcf_res_ctrl_none:
505                default:
506                    ctrl = 0;
507          }          }
     }  
508    
509      void Voice::processPitchEvent(RTList<Event>::Iterator& itEvent) {          return ctrl;*/ // TODO: ^^^
510          PitchBend = RTMath::CentsToFreqRatio(itEvent->Param.Pitch.Pitch * PitchBendRange);          return 0;
511      }      }
512    
513      void Voice::processCutoffEvent(RTList<Event>::Iterator& itEvent) {      float Voice::GetReleaseTriggerAttenuation(float noteLength) {
514          /*int ccvalue = itEvent->Param.CC.Value;          // pow(10, -rt_decay * noteLength / 20):
515          if (VCFCutoffCtrl.value == ccvalue) return;          return expf(RgnInfo.ReleaseTriggerDecay * noteLength);
         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;  
   
         VCFCutoffCtrl.fvalue = cutoff; // needed for initialization of fFinalCutoff next time  
         fFinalCutoff = cutoff;*/ // TODO: ^^^  
516      }      }
517    
518      void Voice::processResonanceEvent(RTList<Event>::Iterator& itEvent) {      void Voice::ProcessGroupEvent(RTList<Event>::Iterator& itEvent) {
519          // convert absolute controller value to differential          dmsg(4,("Voice %x processGroupEvents event type=%d", this, itEvent->Type));
520          const int ctrldelta = itEvent->Param.CC.Value - VCFResonanceCtrl.value;          if (itEvent->Type == Event::type_control_change ||
521          VCFResonanceCtrl.value = itEvent->Param.CC.Value;              (Type & Voice::type_controller_triggered) ||
522          const float resonancedelta = (float) ctrldelta;              itEvent->Param.Note.Key != MIDIKey) {
523          fFinalResonance += resonancedelta;              dmsg(4,("Voice %x - kill", this));
524          // needed for initialization of parameter              if (pRegion->off_mode == ::sfz::OFF_NORMAL) {
525          VCFResonanceCtrl.fvalue = itEvent->Param.CC.Value;                  // turn off the voice by entering release envelope stage
526      }                  EnterReleaseStage();
   
     /**  
      *  Synthesizes the current audio fragment for this voice.  
      *  
      *  @param Samples - number of sample points to be rendered in this audio  
      *                   fragment cycle  
      *  @param pSrc    - pointer to input sample data  
      *  @param Skip    - number of sample points to skip in output buffer  
      */  
     void Voice::Synthesize(uint Samples, sample_t* pSrc, uint Skip) {  
         finalSynthesisParameters.pOutLeft  = &pEngineChannel->pChannelLeft->Buffer()[Skip];  
         finalSynthesisParameters.pOutRight = &pEngineChannel->pChannelRight->Buffer()[Skip];  
         finalSynthesisParameters.pSrc      = pSrc;  
   
         RTList<Event>::Iterator itCCEvent = pEngineChannel->pEvents->first();  
         RTList<Event>::Iterator itNoteEvent = pEngineChannel->pMIDIKeyInfo[MIDIKey].pEvents->first();  
           
   
         if (itTriggerEvent) { // skip events that happened before this voice was triggered  
             while (itCCEvent && itCCEvent->FragmentPos() <= Skip) ++itCCEvent;  
             // we can't simply compare the timestamp here, because note events  
             // might happen on the same time stamp, so we have to deal on the  
             // actual sequence the note events arrived instead (see bug #112)  
             for (; itNoteEvent; ++itNoteEvent) {  
                 if (itTriggerEvent == itNoteEvent) {  
                     ++itNoteEvent;  
                     break;  
                 }  
             }  
         }  
   
         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();  
527              } else {              } else {
528                  killPos = RTMath::Min(itKillEvent->FragmentPos(), maxFadeOutPos);                  // kill the voice fast
529              }                  pEG1->enterFadeOutStage();
         }  
   
         uint i = Skip;  
         /*while (i < Samples) {  
             int iSubFragmentEnd = RTMath::Min(i + CONFIG_DEFAULT_SUBFRAGMENT_SIZE, Samples);  
   
             // initialize all final synthesis parameters  
             fFinalCutoff    = VCFCutoffCtrl.fvalue;  
             fFinalResonance = VCFResonanceCtrl.fvalue;  
   
             // process MIDI control change and pitchbend events for this subfragment  
             processCCEvents(itCCEvent, iSubFragmentEnd);  
   
             finalSynthesisParameters.fFinalPitch = PitchBase * PitchBend;  
             float fFinalVolume = VolumeSmoother.render() * CrossfadeSmoother.render();  
 #ifdef CONFIG_PROCESS_MUTED_CHANNELS  
             if (pEngineChannel->GetMute()) fFinalVolume = 0;  
 #endif  
   
             // process transition events (note on, note off & sustain pedal)  
             processTransitionEvents(itNoteEvent, iSubFragmentEnd);  
   
             // if the voice was killed in this subfragment, or if the  
             // filter EG is finished, switch EG1 to fade out stage  
             if ((itKillEvent && killPos <= iSubFragmentEnd) ||  
                 (SYNTHESIS_MODE_GET_FILTER(SynthesisMode) &&  
                  EG2.getSegmentType() == EGADSR::segment_end)) {  
                 EG1.enterFadeOutStage();  
                 itKillEvent = Pool<Event>::Iterator();  
             }  
   
             // 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);  
530              }              }
             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;  
     }  
   
     /** @brief Update current portamento position.  
      *  
      * Will be called when portamento mode is enabled to get the final  
      * portamento position of this active voice from where the next voice(s)  
      * might continue to slide on.  
      *  
      * @param itNoteOffEvent - event which causes this voice to die soon  
      */  
     void Voice::UpdatePortamentoPos(Pool<Event>::Iterator& itNoteOffEvent) {  
         const float fFinalEG3Level = EG3.level(itNoteOffEvent->FragmentPos());  
         pEngineChannel->PortamentoPos = (float) MIDIKey + RTMath::FreqRatioToCents(fFinalEG3Level) * 0.01f;  
     }  
   
     /**  
      *  Immediately kill the voice. This method should not be used to kill  
      *  a normal, active voice, because it doesn't take care of things like  
      *  fading down the volume level to avoid clicks and regular processing  
      *  until the kill event actually occured!  
      *  
      * 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;  
531          }          }
         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  
   
         if (itTriggerEvent && itKillEvent->FragmentPos() <= itTriggerEvent->FragmentPos()) return;  
         this->itKillEvent = itKillEvent;  
532      }      }
533    
534  }} // namespace LinuxSampler::sfz  }} // namespace LinuxSampler::sfz
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