/[svn]/linuxsampler/trunk/src/engines/gig/Voice.cpp
ViewVC logotype

Diff of /linuxsampler/trunk/src/engines/gig/Voice.cpp

Parent Directory Parent Directory | Revision Log Revision Log | View Patch Patch

revision 830 by persson, Sun Jan 15 18:23:11 2006 UTC revision 2382 by persson, Sun Dec 2 16:30:42 2012 UTC
# Line 3  Line 3 
3   *   LinuxSampler - modular, streaming capable sampler                     *   *   LinuxSampler - modular, streaming capable sampler                     *
4   *                                                                         *   *                                                                         *
5   *   Copyright (C) 2003, 2004 by Benno Senoner and Christian Schoenebeck   *   *   Copyright (C) 2003, 2004 by Benno Senoner and Christian Schoenebeck   *
6   *   Copyright (C) 2005, 2006 Christian Schoenebeck                        *   *   Copyright (C) 2005 - 2008 Christian Schoenebeck                       *
7     *   Copyright (C) 2009 - 2012 Christian Schoenebeck and Grigor Iliev      *
8   *                                                                         *   *                                                                         *
9   *   This program is free software; you can redistribute it and/or modify  *   *   This program is free software; you can redistribute it and/or modify  *
10   *   it under the terms of the GNU General Public License as published by  *   *   it under the terms of the GNU General Public License as published by  *
# Line 24  Line 25 
25  #include "../../common/Features.h"  #include "../../common/Features.h"
26  #include "Synthesizer.h"  #include "Synthesizer.h"
27  #include "Profiler.h"  #include "Profiler.h"
28    #include "Engine.h"
29    #include "EngineChannel.h"
30    
31  #include "Voice.h"  #include "Voice.h"
32    
33  namespace LinuxSampler { namespace gig {  namespace LinuxSampler { namespace gig {
34    
35      const float Voice::FILTER_CUTOFF_COEFF(CalculateFilterCutoffCoeff());      Voice::Voice() {
36            pEngine = NULL;
37            pEG1 = &EG1;
38            pEG2 = &EG2;
39        }
40    
41      float Voice::CalculateFilterCutoffCoeff() {      Voice::~Voice() {
         return log(CONFIG_FILTER_CUTOFF_MAX / CONFIG_FILTER_CUTOFF_MIN);  
42      }      }
43    
44      Voice::Voice() {      EngineChannel* Voice::GetGigEngineChannel() {
45          pEngine     = NULL;          return static_cast<EngineChannel*>(pEngineChannel);
46          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 (currently either pure C++ or MMX+SSE(1))  
         #if CONFIG_ASM && ARCH_X86  
         SYNTHESIS_MODE_SET_IMPLEMENTATION(SynthesisMode, Features::supportsMMX() && Features::supportsSSE());  
         #else  
         SYNTHESIS_MODE_SET_IMPLEMENTATION(SynthesisMode, false);  
         #endif  
         SYNTHESIS_MODE_SET_PROFILING(SynthesisMode, Profiler::isEnabled());  
47    
48          finalSynthesisParameters.filterLeft.Reset();      void Voice::SetEngine(LinuxSampler::Engine* pEngine) {
49          finalSynthesisParameters.filterRight.Reset();          Engine* engine = static_cast<Engine*>(pEngine);
50            this->pEngine     = engine;
51            this->pDiskThread = engine->pDiskThread;
52            dmsg(6,("Voice::SetEngine()\n"));
53      }      }
54    
55      Voice::~Voice() {      Voice::SampleInfo Voice::GetSampleInfo() {
56          if (pLFO1) delete pLFO1;          SampleInfo si;
57          if (pLFO2) delete pLFO2;          si.SampleRate       = pSample->SamplesPerSecond;
58          if (pLFO3) delete pLFO3;          si.ChannelCount     = pSample->Channels;
59            si.FrameSize        = pSample->FrameSize;
60            si.BitDepth         = pSample->BitDepth;
61            si.TotalFrameCount  = pSample->SamplesTotal;
62    
63            si.HasLoops       = pRegion->SampleLoops;
64            si.LoopStart      = (si.HasLoops) ? pRegion->pSampleLoops[0].LoopStart  : 0;
65            si.LoopLength     = (si.HasLoops) ? pRegion->pSampleLoops[0].LoopLength : 0;
66            si.LoopPlayCount  = pSample->LoopPlayCount;
67            si.Unpitched      = !pRegion->PitchTrack;
68    
69            return si;
70      }      }
71    
72      void Voice::SetEngine(Engine* pEngine) {      Voice::RegionInfo Voice::GetRegionInfo() {
73          this->pEngine     = pEngine;          RegionInfo ri;
74          this->pDiskThread = pEngine->pDiskThread;          ri.UnityNote = pRegion->UnityNote;
75          dmsg(6,("Voice::SetEngine()\n"));          ri.FineTune  = pRegion->FineTune;
76            ri.Pan       = pRegion->Pan;
77            ri.SampleStartOffset = pRegion->SampleStartOffset;
78    
79            ri.EG2PreAttack        = pRegion->EG2PreAttack;
80            ri.EG2Attack           = pRegion->EG2Attack;
81            ri.EG2Decay1           = pRegion->EG2Decay1;
82            ri.EG2Decay2           = pRegion->EG2Decay2;
83            ri.EG2Sustain          = pRegion->EG2Sustain;
84            ri.EG2InfiniteSustain  = pRegion->EG2InfiniteSustain;
85            ri.EG2Release          = pRegion->EG2Release;
86    
87            ri.EG3Attack     = pRegion->EG3Attack;
88            ri.EG3Depth      = pRegion->EG3Depth;
89            ri.VCFEnabled    = pRegion->VCFEnabled;
90            ri.VCFType       = Filter::vcf_type_t(pRegion->VCFType);
91            ri.VCFResonance  = pRegion->VCFResonance;
92    
93            ri.ReleaseTriggerDecay = 0.01053 * (256 >> pRegion->ReleaseTriggerDecay);
94    
95            return ri;
96      }      }
97    
98      /**      Voice::InstrumentInfo Voice::GetInstrumentInfo() {
99       *  Initializes and triggers the voice, a disk stream will be launched if          InstrumentInfo ii;
100       *  needed.          ii.FineTune = GetGigEngineChannel()->pInstrument->FineTune;
101       *          ii.PitchbendRange = GetGigEngineChannel()->pInstrument->PitchbendRange;
102       *  @param pEngineChannel - engine channel on which this voice was ordered  
103       *  @param itNoteOnEvent  - event that caused triggering of this voice          return ii;
104       *  @param PitchBend      - MIDI detune factor (-8192 ... +8191)      }
105       *  @param pDimRgn        - points to the dimension region which provides sample wave(s) and articulation data  
106       *  @param VoiceType      - type of this voice      double Voice::GetSampleAttenuation() {
107       *  @param iKeyGroup      - a value > 0 defines a key group in which this voice is member of          return pRegion->SampleAttenuation;
108       *  @returns 0 on success, a value < 0 if the voice wasn't triggered      }
109       *           (either due to an error or e.g. because no region is  
110       *           defined for the given key)      double Voice::GetVelocityAttenuation(uint8_t MIDIKeyVelocity) {
111       */          return pRegion->GetVelocityAttenuation(MIDIKeyVelocity);
112      int Voice::Trigger(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itNoteOnEvent, int PitchBend, ::gig::DimensionRegion* pDimRgn, type_t VoiceType, int iKeyGroup) {      }
113          this->pEngineChannel = pEngineChannel;  
114          this->pDimRgn        = pDimRgn;      double Voice::GetVelocityRelease(uint8_t MIDIKeyVelocity) {
115            return pRegion->GetVelocityRelease(MIDIKeyVelocity);
116          #if CONFIG_DEVMODE      }
117          if (itNoteOnEvent->FragmentPos() > pEngine->MaxSamplesPerCycle) { // just a sanity check for debugging  
118              dmsg(1,("Voice::Trigger(): ERROR, TriggerDelay > Totalsamples\n"));      void Voice::ProcessCCEvent(RTList<Event>::Iterator& itEvent) {
119          }          if (itEvent->Type == Event::type_control_change && itEvent->Param.CC.Controller) { // if (valid) MIDI control change event
120          #endif // CONFIG_DEVMODE              if (pRegion->AttenuationController.type == ::gig::attenuation_ctrl_t::type_controlchange &&
121                    itEvent->Param.CC.Controller == pRegion->AttenuationController.controller_number) {
122          Type            = VoiceType;                  CrossfadeSmoother.update(AbstractEngine::CrossfadeCurve[CrossfadeAttenuation(itEvent->Param.CC.Value)]);
123          MIDIKey         = itNoteOnEvent->Param.Note.Key;              }
         PlaybackState   = playback_state_init; // mark voice as triggered, but no audio rendered yet  
         Delay           = itNoteOnEvent->FragmentPos();  
         itTriggerEvent  = itNoteOnEvent;  
         itKillEvent     = Pool<Event>::Iterator();  
         KeyGroup        = iKeyGroup;  
         pSample         = pDimRgn->pSample; // sample won't change until the voice is finished  
   
         // calculate volume  
         const double velocityAttenuation = pDimRgn->GetVelocityAttenuation(itNoteOnEvent->Param.Note.Velocity);  
   
         Volume = velocityAttenuation / 32768.0f; // we downscale by 32768 to convert from int16 value range to DSP value range (which is -1.0..1.0)  
   
         Volume *= pDimRgn->SampleAttenuation;  
   
         // the volume of release triggered samples depends on note length  
         if (Type == type_release_trigger) {  
             float noteLength = float(pEngine->FrameTime + Delay -  
                                      pEngineChannel->pMIDIKeyInfo[MIDIKey].NoteOnTime) / pEngine->SampleRate;  
             float attenuation = 1 - 0.01053 * (256 >> pDimRgn->ReleaseTriggerDecay) * noteLength;  
             if (attenuation <= 0) return -1;  
             Volume *= attenuation;  
124          }          }
125        }
126    
127          // select channel mode (mono or stereo)      void Voice::ProcessCutoffEvent(RTList<Event>::Iterator& itEvent) {
128          SYNTHESIS_MODE_SET_CHANNELS(SynthesisMode, pSample->Channels == 2);          int ccvalue = itEvent->Param.CC.Value;
129            if (VCFCutoffCtrl.value == ccvalue) return;
130            VCFCutoffCtrl.value = ccvalue;
131            if (pRegion->VCFCutoffControllerInvert)  ccvalue = 127 - ccvalue;
132            if (ccvalue < pRegion->VCFVelocityScale) ccvalue = pRegion->VCFVelocityScale;
133            float cutoff = CutoffBase * float(ccvalue);
134            if (cutoff > 127.0f) cutoff = 127.0f;
135    
136          // get starting crossfade volume level          VCFCutoffCtrl.fvalue = cutoff; // needed for initialization of fFinalCutoff next time
137          switch (pDimRgn->AttenuationController.type) {          fFinalCutoff = cutoff;
138        }
139    
140        double Voice::CalculateCrossfadeVolume(uint8_t MIDIKeyVelocity) {
141            float crossfadeVolume;
142            switch (pRegion->AttenuationController.type) {
143              case ::gig::attenuation_ctrl_t::type_channelaftertouch:              case ::gig::attenuation_ctrl_t::type_channelaftertouch:
144                  CrossfadeVolume = 1.0f; //TODO: aftertouch not supported yet                  crossfadeVolume = Engine::CrossfadeCurve[CrossfadeAttenuation(GetGigEngineChannel()->ControllerTable[128])];
145                  break;                  break;
146              case ::gig::attenuation_ctrl_t::type_velocity:              case ::gig::attenuation_ctrl_t::type_velocity:
147                  CrossfadeVolume = CrossfadeAttenuation(itNoteOnEvent->Param.Note.Velocity);                  crossfadeVolume = Engine::CrossfadeCurve[CrossfadeAttenuation(MIDIKeyVelocity)];
148                  break;                  break;
149              case ::gig::attenuation_ctrl_t::type_controlchange: //FIXME: currently not sample accurate              case ::gig::attenuation_ctrl_t::type_controlchange: //FIXME: currently not sample accurate
150                  CrossfadeVolume = CrossfadeAttenuation(pEngineChannel->ControllerTable[pDimRgn->AttenuationController.controller_number]);                  crossfadeVolume = Engine::CrossfadeCurve[CrossfadeAttenuation(GetGigEngineChannel()->ControllerTable[pRegion->AttenuationController.controller_number])];
151                  break;                  break;
152              case ::gig::attenuation_ctrl_t::type_none: // no crossfade defined              case ::gig::attenuation_ctrl_t::type_none: // no crossfade defined
153              default:              default:
154                  CrossfadeVolume = 1.0f;                  crossfadeVolume = 1.0f;
155          }          }
156    
157          PanLeft  = 1.0f - float(RTMath::Max(pDimRgn->Pan, 0)) /  63.0f;          return crossfadeVolume;
158          PanRight = 1.0f - float(RTMath::Min(pDimRgn->Pan, 0)) / -64.0f;      }
159    
160          finalSynthesisParameters.dPos = pDimRgn->SampleStartOffset; // offset where we should start playback of sample (0 - 2000 sample points)      double Voice::GetEG1ControllerValue(uint8_t MIDIKeyVelocity) {
161          Pos = pDimRgn->SampleStartOffset;          double eg1controllervalue = 0;
162            switch (pRegion->EG1Controller.type) {
163                case ::gig::eg1_ctrl_t::type_none: // no controller defined
164                    eg1controllervalue = 0;
165                    break;
166                case ::gig::eg1_ctrl_t::type_channelaftertouch:
167                    eg1controllervalue = GetGigEngineChannel()->ControllerTable[128];
168                    break;
169                case ::gig::eg1_ctrl_t::type_velocity:
170                    eg1controllervalue = MIDIKeyVelocity;
171                    break;
172                case ::gig::eg1_ctrl_t::type_controlchange: // MIDI control change controller
173                    eg1controllervalue = GetGigEngineChannel()->ControllerTable[pRegion->EG1Controller.controller_number];
174                    break;
175            }
176            if (pRegion->EG1ControllerInvert) eg1controllervalue = 127 - eg1controllervalue;
177    
178          // Check if the sample needs disk streaming or is too short for that          return eg1controllervalue;
179          long cachedsamples = pSample->GetCache().Size / pSample->FrameSize;      }
         DiskVoice          = cachedsamples < pSample->SamplesTotal;  
180    
181          if (DiskVoice) { // voice to be streamed from disk      Voice::EGInfo Voice::CalculateEG1ControllerInfluence(double eg1ControllerValue) {
182              MaxRAMPos = cachedsamples - (pEngine->MaxSamplesPerCycle << CONFIG_MAX_PITCH) / pSample->Channels; //TODO: this calculation is too pessimistic and may better be moved to Render() method, so it calculates MaxRAMPos dependent to the current demand of sample points to be rendered (e.g. in case of JACK)          EGInfo eg;
183            // (eg1attack is different from the others)
184            eg.Attack  = (pRegion->EG1ControllerAttackInfluence)  ?
185                1 + 0.031 * (double) (pRegion->EG1ControllerAttackInfluence == 1 ?
186                                      1 : 1 << pRegion->EG1ControllerAttackInfluence) * eg1ControllerValue : 1.0;
187            eg.Decay   = (pRegion->EG1ControllerDecayInfluence)   ? 1 + 0.00775 * (double) (1 << pRegion->EG1ControllerDecayInfluence)   * eg1ControllerValue : 1.0;
188            eg.Release = (pRegion->EG1ControllerReleaseInfluence) ? 1 + 0.00775 * (double) (1 << pRegion->EG1ControllerReleaseInfluence) * eg1ControllerValue : 1.0;
189    
190              // check if there's a loop defined which completely fits into the cached (RAM) part of the sample          return eg;
191              RAMLoop = (pSample->Loops && pSample->LoopEnd <= MaxRAMPos);      }
192    
193              if (pDiskThread->OrderNewStream(&DiskStreamRef, pSample, MaxRAMPos, !RAMLoop) < 0) {      double Voice::GetEG2ControllerValue(uint8_t MIDIKeyVelocity) {
194                  dmsg(1,("Disk stream order failed!\n"));          double eg2controllervalue = 0;
195                  KillImmediately();          switch (pRegion->EG2Controller.type) {
196                  return -1;              case ::gig::eg2_ctrl_t::type_none: // no controller defined
197              }                  eg2controllervalue = 0;
198              dmsg(4,("Disk voice launched (cached samples: %d, total Samples: %d, MaxRAMPos: %d, RAMLooping: %s)\n", cachedsamples, pSample->SamplesTotal, MaxRAMPos, (RAMLoop) ? "yes" : "no"));                  break;
199                case ::gig::eg2_ctrl_t::type_channelaftertouch:
200                    eg2controllervalue = GetGigEngineChannel()->ControllerTable[128];
201                    break;
202                case ::gig::eg2_ctrl_t::type_velocity:
203                    eg2controllervalue = MIDIKeyVelocity;
204                    break;
205                case ::gig::eg2_ctrl_t::type_controlchange: // MIDI control change controller
206                    eg2controllervalue = GetGigEngineChannel()->ControllerTable[pRegion->EG2Controller.controller_number];
207                    break;
208          }          }
209          else { // RAM only voice          if (pRegion->EG2ControllerInvert) eg2controllervalue = 127 - eg2controllervalue;
             MaxRAMPos = cachedsamples;  
             RAMLoop = (pSample->Loops != 0);  
             dmsg(4,("RAM only voice launched (Looping: %s)\n", (RAMLoop) ? "yes" : "no"));  
         }  
         if (RAMLoop) {  
             loop.uiTotalCycles = pSample->LoopPlayCount;  
             loop.uiCyclesLeft  = pSample->LoopPlayCount;  
             loop.uiStart       = pSample->LoopStart;  
             loop.uiEnd         = pSample->LoopEnd;  
             loop.uiSize        = pSample->LoopSize;  
         }  
   
         // calculate initial pitch value  
         {  
             double pitchbasecents = pDimRgn->FineTune + (int) pEngine->ScaleTuning[MIDIKey % 12];  
             if (pDimRgn->PitchTrack) pitchbasecents += (MIDIKey - (int) pDimRgn->UnityNote) * 100;  
             this->PitchBase = RTMath::CentsToFreqRatio(pitchbasecents) * (double(pSample->SamplesPerSecond) / double(pEngine->SampleRate));  
             this->PitchBend = RTMath::CentsToFreqRatio(((double) PitchBend / 8192.0) * 200.0); // pitchbend wheel +-2 semitones = 200 cents  
         }  
   
         // the length of the decay and release curves are dependent on the velocity  
         const double velrelease = 1 / pDimRgn->GetVelocityRelease(itNoteOnEvent->Param.Note.Velocity);  
   
         // setup EG 1 (VCA EG)  
         {  
             // get current value of EG1 controller  
             double eg1controllervalue;  
             switch (pDimRgn->EG1Controller.type) {  
                 case ::gig::eg1_ctrl_t::type_none: // no controller defined  
                     eg1controllervalue = 0;  
                     break;  
                 case ::gig::eg1_ctrl_t::type_channelaftertouch:  
                     eg1controllervalue = 0; // TODO: aftertouch not yet supported  
                     break;  
                 case ::gig::eg1_ctrl_t::type_velocity:  
                     eg1controllervalue = itNoteOnEvent->Param.Note.Velocity;  
                     break;  
                 case ::gig::eg1_ctrl_t::type_controlchange: // MIDI control change controller  
                     eg1controllervalue = pEngineChannel->ControllerTable[pDimRgn->EG1Controller.controller_number];  
                     break;  
             }  
             if (pDimRgn->EG1ControllerInvert) eg1controllervalue = 127 - eg1controllervalue;  
210    
211              // calculate influence of EG1 controller on EG1's parameters          return eg2controllervalue;
212              // (eg1attack is different from the others)      }
             double eg1attack  = (pDimRgn->EG1ControllerAttackInfluence)  ?  
                 1 + 0.031 * (double) (pDimRgn->EG1ControllerAttackInfluence == 1 ?  
                                       1 : 1 << pDimRgn->EG1ControllerAttackInfluence) * eg1controllervalue : 1.0;  
             double eg1decay   = (pDimRgn->EG1ControllerDecayInfluence)   ? 1 + 0.00775 * (double) (1 << pDimRgn->EG1ControllerDecayInfluence)   * eg1controllervalue : 1.0;  
             double eg1release = (pDimRgn->EG1ControllerReleaseInfluence) ? 1 + 0.00775 * (double) (1 << pDimRgn->EG1ControllerReleaseInfluence) * eg1controllervalue : 1.0;  
   
             EG1.trigger(pDimRgn->EG1PreAttack,  
                         pDimRgn->EG1Attack * eg1attack,  
                         pDimRgn->EG1Hold,  
                         pDimRgn->EG1Decay1 * eg1decay * velrelease,  
                         pDimRgn->EG1Decay2 * eg1decay * velrelease,  
                         pDimRgn->EG1InfiniteSustain,  
                         pDimRgn->EG1Sustain,  
                         pDimRgn->EG1Release * eg1release * velrelease,  
                         velocityAttenuation,  
                         pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);  
         }  
   
         // setup initial volume in synthesis parameters  
         fFinalVolume = getVolume() * EG1.getLevel();  
         finalSynthesisParameters.fFinalVolumeLeft  = fFinalVolume * PanLeft;  
         finalSynthesisParameters.fFinalVolumeRight = fFinalVolume * PanRight;  
   
   
         // setup EG 2 (VCF Cutoff EG)  
         {  
             // get current value of EG2 controller  
             double eg2controllervalue;  
             switch (pDimRgn->EG2Controller.type) {  
                 case ::gig::eg2_ctrl_t::type_none: // no controller defined  
                     eg2controllervalue = 0;  
                     break;  
                 case ::gig::eg2_ctrl_t::type_channelaftertouch:  
                     eg2controllervalue = 0; // TODO: aftertouch not yet supported  
                     break;  
                 case ::gig::eg2_ctrl_t::type_velocity:  
                     eg2controllervalue = itNoteOnEvent->Param.Note.Velocity;  
                     break;  
                 case ::gig::eg2_ctrl_t::type_controlchange: // MIDI control change controller  
                     eg2controllervalue = pEngineChannel->ControllerTable[pDimRgn->EG2Controller.controller_number];  
                     break;  
             }  
             if (pDimRgn->EG2ControllerInvert) eg2controllervalue = 127 - eg2controllervalue;  
213    
214              // calculate influence of EG2 controller on EG2's parameters      Voice::EGInfo Voice::CalculateEG2ControllerInfluence(double eg2ControllerValue) {
215              double eg2attack  = (pDimRgn->EG2ControllerAttackInfluence)  ? 1 + 0.00775 * (double) (1 << pDimRgn->EG2ControllerAttackInfluence)  * eg2controllervalue : 1.0;          EGInfo eg;
216              double eg2decay   = (pDimRgn->EG2ControllerDecayInfluence)   ? 1 + 0.00775 * (double) (1 << pDimRgn->EG2ControllerDecayInfluence)   * eg2controllervalue : 1.0;          eg.Attack  = (pRegion->EG2ControllerAttackInfluence)  ? 1 + 0.00775 * (double) (1 << pRegion->EG2ControllerAttackInfluence)  * eg2ControllerValue : 1.0;
217              double eg2release = (pDimRgn->EG2ControllerReleaseInfluence) ? 1 + 0.00775 * (double) (1 << pDimRgn->EG2ControllerReleaseInfluence) * eg2controllervalue : 1.0;          eg.Decay   = (pRegion->EG2ControllerDecayInfluence)   ? 1 + 0.00775 * (double) (1 << pRegion->EG2ControllerDecayInfluence)   * eg2ControllerValue : 1.0;
218            eg.Release = (pRegion->EG2ControllerReleaseInfluence) ? 1 + 0.00775 * (double) (1 << pRegion->EG2ControllerReleaseInfluence) * eg2ControllerValue : 1.0;
             EG2.trigger(pDimRgn->EG2PreAttack,  
                         pDimRgn->EG2Attack * eg2attack,  
                         false,  
                         pDimRgn->EG2Decay1 * eg2decay * velrelease,  
                         pDimRgn->EG2Decay2 * eg2decay * velrelease,  
                         pDimRgn->EG2InfiniteSustain,  
                         pDimRgn->EG2Sustain,  
                         pDimRgn->EG2Release * eg2release * velrelease,  
                         velocityAttenuation,  
                         pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);  
         }  
   
   
         // setup EG 3 (VCO EG)  
         {  
             // if portamento mode is on, we dedicate EG3 purely for portamento, otherwise if portamento is off we do as told by the patch  
             bool  bPortamento = pEngineChannel->PortamentoMode && pEngineChannel->PortamentoPos >= 0.0f;  
             float eg3depth = (bPortamento)  
                                  ? RTMath::CentsToFreqRatio((pEngineChannel->PortamentoPos - (float) MIDIKey) * 100)  
                                  : RTMath::CentsToFreqRatio(pDimRgn->EG3Depth);  
             float eg3time = (bPortamento)  
                                 ? pEngineChannel->PortamentoTime  
                                 : pDimRgn->EG3Attack;  
             EG3.trigger(eg3depth, eg3time, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);  
             dmsg(5,("PortamentoPos=%f, depth=%f, time=%f\n", pEngineChannel->PortamentoPos, eg3depth, eg3time));  
         }  
   
   
         // setup LFO 1 (VCA LFO)  
         {  
             uint16_t lfo1_internal_depth;  
             switch (pDimRgn->LFO1Controller) {  
                 case ::gig::lfo1_ctrl_internal:  
                     lfo1_internal_depth  = pDimRgn->LFO1InternalDepth;  
                     pLFO1->ExtController = 0; // no external controller  
                     bLFO1Enabled         = (lfo1_internal_depth > 0);  
                     break;  
                 case ::gig::lfo1_ctrl_modwheel:  
                     lfo1_internal_depth  = 0;  
                     pLFO1->ExtController = 1; // MIDI controller 1  
                     bLFO1Enabled         = (pDimRgn->LFO1ControlDepth > 0);  
                     break;  
                 case ::gig::lfo1_ctrl_breath:  
                     lfo1_internal_depth  = 0;  
                     pLFO1->ExtController = 2; // MIDI controller 2  
                     bLFO1Enabled         = (pDimRgn->LFO1ControlDepth > 0);  
                     break;  
                 case ::gig::lfo1_ctrl_internal_modwheel:  
                     lfo1_internal_depth  = pDimRgn->LFO1InternalDepth;  
                     pLFO1->ExtController = 1; // MIDI controller 1  
                     bLFO1Enabled         = (lfo1_internal_depth > 0 || pDimRgn->LFO1ControlDepth > 0);  
                     break;  
                 case ::gig::lfo1_ctrl_internal_breath:  
                     lfo1_internal_depth  = pDimRgn->LFO1InternalDepth;  
                     pLFO1->ExtController = 2; // MIDI controller 2  
                     bLFO1Enabled         = (lfo1_internal_depth > 0 || pDimRgn->LFO1ControlDepth > 0);  
                     break;  
                 default:  
                     lfo1_internal_depth  = 0;  
                     pLFO1->ExtController = 0; // no external controller  
                     bLFO1Enabled         = false;  
             }  
             if (bLFO1Enabled) pLFO1->trigger(pDimRgn->LFO1Frequency,  
                                              start_level_max,  
                                              lfo1_internal_depth,  
                                              pDimRgn->LFO1ControlDepth,  
                                              pDimRgn->LFO1FlipPhase,  
                                              pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);  
         }  
219    
220            return eg;
221        }
222    
223          // setup LFO 2 (VCF Cutoff LFO)      void Voice::InitLFO1() {
224          {          uint16_t lfo1_internal_depth;
225              uint16_t lfo2_internal_depth;          switch (pRegion->LFO1Controller) {
226              switch (pDimRgn->LFO2Controller) {              case ::gig::lfo1_ctrl_internal:
227                  case ::gig::lfo2_ctrl_internal:                  lfo1_internal_depth  = pRegion->LFO1InternalDepth;
228                      lfo2_internal_depth  = pDimRgn->LFO2InternalDepth;                  pLFO1->ExtController = 0; // no external controller
229                      pLFO2->ExtController = 0; // no external controller                  bLFO1Enabled         = (lfo1_internal_depth > 0);
230                      bLFO2Enabled         = (lfo2_internal_depth > 0);                  break;
231                      break;              case ::gig::lfo1_ctrl_modwheel:
232                  case ::gig::lfo2_ctrl_modwheel:                  lfo1_internal_depth  = 0;
233                      lfo2_internal_depth  = 0;                  pLFO1->ExtController = 1; // MIDI controller 1
234                      pLFO2->ExtController = 1; // MIDI controller 1                  bLFO1Enabled         = (pRegion->LFO1ControlDepth > 0);
235                      bLFO2Enabled         = (pDimRgn->LFO2ControlDepth > 0);                  break;
236                      break;              case ::gig::lfo1_ctrl_breath:
237                  case ::gig::lfo2_ctrl_foot:                  lfo1_internal_depth  = 0;
238                      lfo2_internal_depth  = 0;                  pLFO1->ExtController = 2; // MIDI controller 2
239                      pLFO2->ExtController = 4; // MIDI controller 4                  bLFO1Enabled         = (pRegion->LFO1ControlDepth > 0);
240                      bLFO2Enabled         = (pDimRgn->LFO2ControlDepth > 0);                  break;
241                      break;              case ::gig::lfo1_ctrl_internal_modwheel:
242                  case ::gig::lfo2_ctrl_internal_modwheel:                  lfo1_internal_depth  = pRegion->LFO1InternalDepth;
243                      lfo2_internal_depth  = pDimRgn->LFO2InternalDepth;                  pLFO1->ExtController = 1; // MIDI controller 1
244                      pLFO2->ExtController = 1; // MIDI controller 1                  bLFO1Enabled         = (lfo1_internal_depth > 0 || pRegion->LFO1ControlDepth > 0);
245                      bLFO2Enabled         = (lfo2_internal_depth > 0 || pDimRgn->LFO2ControlDepth > 0);                  break;
246                      break;              case ::gig::lfo1_ctrl_internal_breath:
247                  case ::gig::lfo2_ctrl_internal_foot:                  lfo1_internal_depth  = pRegion->LFO1InternalDepth;
248                      lfo2_internal_depth  = pDimRgn->LFO2InternalDepth;                  pLFO1->ExtController = 2; // MIDI controller 2
249                      pLFO2->ExtController = 4; // MIDI controller 4                  bLFO1Enabled         = (lfo1_internal_depth > 0 || pRegion->LFO1ControlDepth > 0);
250                      bLFO2Enabled         = (lfo2_internal_depth > 0 || pDimRgn->LFO2ControlDepth > 0);                  break;
251                      break;              default:
252                  default:                  lfo1_internal_depth  = 0;
253                      lfo2_internal_depth  = 0;                  pLFO1->ExtController = 0; // no external controller
254                      pLFO2->ExtController = 0; // no external controller                  bLFO1Enabled         = false;
255                      bLFO2Enabled         = false;          }
256              }          if (bLFO1Enabled) {
257              if (bLFO2Enabled) pLFO2->trigger(pDimRgn->LFO2Frequency,              pLFO1->trigger(pRegion->LFO1Frequency,
258                                               start_level_max,                             start_level_min,
259                                               lfo2_internal_depth,                             lfo1_internal_depth,
260                                               pDimRgn->LFO2ControlDepth,                             pRegion->LFO1ControlDepth,
261                                               pDimRgn->LFO2FlipPhase,                             pRegion->LFO1FlipPhase,
262                                               pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);                             pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
263                pLFO1->update(pLFO1->ExtController ? GetGigEngineChannel()->ControllerTable[pLFO1->ExtController] : 0);
264          }          }
265        }
266    
267        void Voice::InitLFO2() {
268          // setup LFO 3 (VCO LFO)          uint16_t lfo2_internal_depth;
269          {          switch (pRegion->LFO2Controller) {
270              uint16_t lfo3_internal_depth;              case ::gig::lfo2_ctrl_internal:
271              switch (pDimRgn->LFO3Controller) {                  lfo2_internal_depth  = pRegion->LFO2InternalDepth;
272                  case ::gig::lfo3_ctrl_internal:                  pLFO2->ExtController = 0; // no external controller
273                      lfo3_internal_depth  = pDimRgn->LFO3InternalDepth;                  bLFO2Enabled         = (lfo2_internal_depth > 0);
274                      pLFO3->ExtController = 0; // no external controller                  break;
275                      bLFO3Enabled         = (lfo3_internal_depth > 0);              case ::gig::lfo2_ctrl_modwheel:
276                      break;                  lfo2_internal_depth  = 0;
277                  case ::gig::lfo3_ctrl_modwheel:                  pLFO2->ExtController = 1; // MIDI controller 1
278                      lfo3_internal_depth  = 0;                  bLFO2Enabled         = (pRegion->LFO2ControlDepth > 0);
279                      pLFO3->ExtController = 1; // MIDI controller 1                  break;
280                      bLFO3Enabled         = (pDimRgn->LFO3ControlDepth > 0);              case ::gig::lfo2_ctrl_foot:
281                      break;                  lfo2_internal_depth  = 0;
282                  case ::gig::lfo3_ctrl_aftertouch:                  pLFO2->ExtController = 4; // MIDI controller 4
283                      lfo3_internal_depth  = 0;                  bLFO2Enabled         = (pRegion->LFO2ControlDepth > 0);
284                      pLFO3->ExtController = 0; // TODO: aftertouch not implemented yet                  break;
285                      bLFO3Enabled         = false; // see TODO comment in line above              case ::gig::lfo2_ctrl_internal_modwheel:
286                      break;                  lfo2_internal_depth  = pRegion->LFO2InternalDepth;
287                  case ::gig::lfo3_ctrl_internal_modwheel:                  pLFO2->ExtController = 1; // MIDI controller 1
288                      lfo3_internal_depth  = pDimRgn->LFO3InternalDepth;                  bLFO2Enabled         = (lfo2_internal_depth > 0 || pRegion->LFO2ControlDepth > 0);
289                      pLFO3->ExtController = 1; // MIDI controller 1                  break;
290                      bLFO3Enabled         = (lfo3_internal_depth > 0 || pDimRgn->LFO3ControlDepth > 0);              case ::gig::lfo2_ctrl_internal_foot:
291                      break;                  lfo2_internal_depth  = pRegion->LFO2InternalDepth;
292                  case ::gig::lfo3_ctrl_internal_aftertouch:                  pLFO2->ExtController = 4; // MIDI controller 4
293                      lfo3_internal_depth  = pDimRgn->LFO3InternalDepth;                  bLFO2Enabled         = (lfo2_internal_depth > 0 || pRegion->LFO2ControlDepth > 0);
294                      pLFO1->ExtController = 0; // TODO: aftertouch not implemented yet                  break;
295                      bLFO3Enabled         = (lfo3_internal_depth > 0 /*|| pDimRgn->LFO3ControlDepth > 0*/); // see TODO comment in line above              default:
296                      break;                  lfo2_internal_depth  = 0;
297                  default:                  pLFO2->ExtController = 0; // no external controller
298                      lfo3_internal_depth  = 0;                  bLFO2Enabled         = false;
299                      pLFO3->ExtController = 0; // no external controller          }
300                      bLFO3Enabled         = false;          if (bLFO2Enabled) {
301              }              pLFO2->trigger(pRegion->LFO2Frequency,
302              if (bLFO3Enabled) pLFO3->trigger(pDimRgn->LFO3Frequency,                             start_level_max,
303                                               start_level_mid,                             lfo2_internal_depth,
304                                               lfo3_internal_depth,                             pRegion->LFO2ControlDepth,
305                                               pDimRgn->LFO3ControlDepth,                             pRegion->LFO2FlipPhase,
306                                               false,                             pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
307                                               pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);              pLFO2->update(pLFO2->ExtController ? GetGigEngineChannel()->ControllerTable[pLFO2->ExtController] : 0);
308          }          }
309        }
310    
311        void Voice::InitLFO3() {
312            uint16_t lfo3_internal_depth;
313            switch (pRegion->LFO3Controller) {
314                case ::gig::lfo3_ctrl_internal:
315                    lfo3_internal_depth  = pRegion->LFO3InternalDepth;
316                    pLFO3->ExtController = 0; // no external controller
317                    bLFO3Enabled         = (lfo3_internal_depth > 0);
318                    break;
319                case ::gig::lfo3_ctrl_modwheel:
320                    lfo3_internal_depth  = 0;
321                    pLFO3->ExtController = 1; // MIDI controller 1
322                    bLFO3Enabled         = (pRegion->LFO3ControlDepth > 0);
323                    break;
324                case ::gig::lfo3_ctrl_aftertouch:
325                    lfo3_internal_depth  = 0;
326                    pLFO3->ExtController = 128;
327                    bLFO3Enabled         = true;
328                    break;
329                case ::gig::lfo3_ctrl_internal_modwheel:
330                    lfo3_internal_depth  = pRegion->LFO3InternalDepth;
331                    pLFO3->ExtController = 1; // MIDI controller 1
332                    bLFO3Enabled         = (lfo3_internal_depth > 0 || pRegion->LFO3ControlDepth > 0);
333                    break;
334                case ::gig::lfo3_ctrl_internal_aftertouch:
335                    lfo3_internal_depth  = pRegion->LFO3InternalDepth;
336                    pLFO3->ExtController = 128;
337                    bLFO3Enabled         = (lfo3_internal_depth > 0 || pRegion->LFO3ControlDepth > 0);
338                    break;
339                default:
340                    lfo3_internal_depth  = 0;
341                    pLFO3->ExtController = 0; // no external controller
342                    bLFO3Enabled         = false;
343            }
344            if (bLFO3Enabled) {
345                pLFO3->trigger(pRegion->LFO3Frequency,
346                               start_level_mid,
347                               lfo3_internal_depth,
348                               pRegion->LFO3ControlDepth,
349                               false,
350                               pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
351                pLFO3->update(pLFO3->ExtController ? GetGigEngineChannel()->ControllerTable[pLFO3->ExtController] : 0);
352            }
353        }
354    
355          #if CONFIG_FORCE_FILTER      float Voice::CalculateCutoffBase(uint8_t MIDIKeyVelocity) {
356          const bool bUseFilter = true;          float cutoff = pRegion->GetVelocityCutoff(MIDIKeyVelocity);
357          #else // use filter only if instrument file told so          if (pRegion->VCFKeyboardTracking) {
358          const bool bUseFilter = pDimRgn->VCFEnabled;              cutoff *= RTMath::CentsToFreqRatioUnlimited((MIDIKey - pRegion->VCFKeyboardTrackingBreakpoint) * 100);
359          #endif // CONFIG_FORCE_FILTER          }
360          SYNTHESIS_MODE_SET_FILTER(SynthesisMode, bUseFilter);          return cutoff;
361          if (bUseFilter) {      }
362              #ifdef CONFIG_OVERRIDE_CUTOFF_CTRL  
363              VCFCutoffCtrl.controller = CONFIG_OVERRIDE_CUTOFF_CTRL;      float Voice::CalculateFinalCutoff(float cutoffBase) {
364              #else // use the one defined in the instrument file          int cvalue;
365              switch (pDimRgn->VCFCutoffController) {          if (VCFCutoffCtrl.controller) {
366                  case ::gig::vcf_cutoff_ctrl_modwheel:              cvalue = GetGigEngineChannel()->ControllerTable[VCFCutoffCtrl.controller];
367                      VCFCutoffCtrl.controller = 1;              if (pRegion->VCFCutoffControllerInvert) cvalue = 127 - cvalue;
368                      break;              // VCFVelocityScale in this case means Minimum cutoff
369                  case ::gig::vcf_cutoff_ctrl_effect1:              if (cvalue < pRegion->VCFVelocityScale) cvalue = pRegion->VCFVelocityScale;
                     VCFCutoffCtrl.controller = 12;  
                     break;  
                 case ::gig::vcf_cutoff_ctrl_effect2:  
                     VCFCutoffCtrl.controller = 13;  
                     break;  
                 case ::gig::vcf_cutoff_ctrl_breath:  
                     VCFCutoffCtrl.controller = 2;  
                     break;  
                 case ::gig::vcf_cutoff_ctrl_foot:  
                     VCFCutoffCtrl.controller = 4;  
                     break;  
                 case ::gig::vcf_cutoff_ctrl_sustainpedal:  
                     VCFCutoffCtrl.controller = 64;  
                     break;  
                 case ::gig::vcf_cutoff_ctrl_softpedal:  
                     VCFCutoffCtrl.controller = 67;  
                     break;  
                 case ::gig::vcf_cutoff_ctrl_genpurpose7:  
                     VCFCutoffCtrl.controller = 82;  
                     break;  
                 case ::gig::vcf_cutoff_ctrl_genpurpose8:  
                     VCFCutoffCtrl.controller = 83;  
                     break;  
                 case ::gig::vcf_cutoff_ctrl_aftertouch: //TODO: not implemented yet  
                 case ::gig::vcf_cutoff_ctrl_none:  
                 default:  
                     VCFCutoffCtrl.controller = 0;  
                     break;  
             }  
             #endif // CONFIG_OVERRIDE_CUTOFF_CTRL  
   
             #ifdef CONFIG_OVERRIDE_RESONANCE_CTRL  
             VCFResonanceCtrl.controller = CONFIG_OVERRIDE_RESONANCE_CTRL;  
             #else // use the one defined in the instrument file  
             switch (pDimRgn->VCFResonanceController) {  
                 case ::gig::vcf_res_ctrl_genpurpose3:  
                     VCFResonanceCtrl.controller = 18;  
                     break;  
                 case ::gig::vcf_res_ctrl_genpurpose4:  
                     VCFResonanceCtrl.controller = 19;  
                     break;  
                 case ::gig::vcf_res_ctrl_genpurpose5:  
                     VCFResonanceCtrl.controller = 80;  
                     break;  
                 case ::gig::vcf_res_ctrl_genpurpose6:  
                     VCFResonanceCtrl.controller = 81;  
                     break;  
                 case ::gig::vcf_res_ctrl_none:  
                 default:  
                     VCFResonanceCtrl.controller = 0;  
             }  
             #endif // CONFIG_OVERRIDE_RESONANCE_CTRL  
   
             #ifndef CONFIG_OVERRIDE_FILTER_TYPE  
             finalSynthesisParameters.filterLeft.SetType(pDimRgn->VCFType);  
             finalSynthesisParameters.filterRight.SetType(pDimRgn->VCFType);  
             #else // override filter type  
             FilterLeft.SetType(CONFIG_OVERRIDE_FILTER_TYPE);  
             FilterRight.SetType(CONFIG_OVERRIDE_FILTER_TYPE);  
             #endif // CONFIG_OVERRIDE_FILTER_TYPE  
   
             VCFCutoffCtrl.value    = pEngineChannel->ControllerTable[VCFCutoffCtrl.controller];  
             VCFResonanceCtrl.value = pEngineChannel->ControllerTable[VCFResonanceCtrl.controller];  
   
             // calculate cutoff frequency  
             float cutoff = pDimRgn->GetVelocityCutoff(itNoteOnEvent->Param.Note.Velocity);  
             if (pDimRgn->VCFKeyboardTracking) {  
                 cutoff *= exp((itNoteOnEvent->Param.Note.Key - pDimRgn->VCFKeyboardTrackingBreakpoint) * 0.057762265f); // (ln(2) / 12)  
             }  
             CutoffBase = cutoff;  
   
             int cvalue;  
             if (VCFCutoffCtrl.controller) {  
                 cvalue = pEngineChannel->ControllerTable[VCFCutoffCtrl.controller];  
                 if (pDimRgn->VCFCutoffControllerInvert) cvalue = 127 - cvalue;  
                 // VCFVelocityScale in this case means Minimum cutoff  
                 if (cvalue < pDimRgn->VCFVelocityScale) cvalue = pDimRgn->VCFVelocityScale;  
             }  
             else {  
                 cvalue = pDimRgn->VCFCutoff;  
             }  
             cutoff *= float(cvalue) * 0.00787402f; // (1 / 127)  
             if (cutoff > 1.0) cutoff = 1.0;  
             cutoff = (cutoff < 0.5 ? cutoff * 4826 - 1 : cutoff * 5715 - 449);  
             if (cutoff < 1.0) cutoff = 1.0;  
   
             // calculate resonance  
             float resonance = (float) (VCFResonanceCtrl.controller ? VCFResonanceCtrl.value : pDimRgn->VCFResonance) * 0.00787f; // 0.0..1.0  
   
             VCFCutoffCtrl.fvalue    = cutoff - 1.0;  
             VCFResonanceCtrl.fvalue = resonance;  
370          }          }
371          else {          else {
372              VCFCutoffCtrl.controller    = 0;              cvalue = pRegion->VCFCutoff;
             VCFResonanceCtrl.controller = 0;  
373          }          }
374            float fco = cutoffBase * float(cvalue);
375            if (fco > 127.0f) fco = 127.0f;
376    
377          return 0; // success          return fco;
378      }      }
379    
380      /**      uint8_t Voice::GetVCFCutoffCtrl() {
381       *  Renders the audio data for this voice for the current audio fragment.          uint8_t ctrl;
382       *  The sample input data can either come from RAM (cached sample or sample          switch (pRegion->VCFCutoffController) {
383       *  part) or directly from disk. The output signal will be rendered by              case ::gig::vcf_cutoff_ctrl_modwheel:
384       *  resampling / interpolation. If this voice is a disk streaming voice and                  ctrl = 1;
385       *  the voice completely played back the cached RAM part of the sample, it                  break;
386       *  will automatically switch to disk playback for the next RenderAudio()              case ::gig::vcf_cutoff_ctrl_effect1:
387       *  call.                  ctrl = 12;
388       *                  break;
389       *  @param Samples - number of samples to be rendered in this audio fragment cycle              case ::gig::vcf_cutoff_ctrl_effect2:
390       */                  ctrl = 13;
391      void Voice::Render(uint Samples) {                  break;
392                case ::gig::vcf_cutoff_ctrl_breath:
393          // select default values for synthesis mode bits                  ctrl = 2;
394          SYNTHESIS_MODE_SET_LOOP(SynthesisMode, false);                  break;
395                case ::gig::vcf_cutoff_ctrl_foot:
396          switch (this->PlaybackState) {                  ctrl = 4;
397                    break;
398              case playback_state_init:              case ::gig::vcf_cutoff_ctrl_sustainpedal:
399                  this->PlaybackState = playback_state_ram; // we always start playback from RAM cache and switch then to disk if needed                  ctrl = 64;
400                  // no break - continue with playback_state_ram                  break;
401                case ::gig::vcf_cutoff_ctrl_softpedal:
402              case playback_state_ram: {                  ctrl = 67;
403                      if (RAMLoop) SYNTHESIS_MODE_SET_LOOP(SynthesisMode, true); // enable looping                  break;
404                case ::gig::vcf_cutoff_ctrl_genpurpose7:
405                      // render current fragment                  ctrl = 82;
406                      Synthesize(Samples, (sample_t*) pSample->GetCache().pStart, Delay);                  break;
407                case ::gig::vcf_cutoff_ctrl_genpurpose8:
408                      if (DiskVoice) {                  ctrl = 83;
409                          // check if we reached the allowed limit of the sample RAM cache                  break;
410                          if (finalSynthesisParameters.dPos > MaxRAMPos) {              case ::gig::vcf_cutoff_ctrl_aftertouch:
411                              dmsg(5,("Voice: switching to disk playback (Pos=%f)\n", finalSynthesisParameters.dPos));                  ctrl = 128;
412                              this->PlaybackState = playback_state_disk;                  break;
413                          }              case ::gig::vcf_cutoff_ctrl_none:
414                      } else if (finalSynthesisParameters.dPos >= pSample->GetCache().Size / pSample->FrameSize) {              default:
415                          this->PlaybackState = playback_state_end;                  ctrl = 0;
416                      }                  break;
                 }  
                 break;  
   
             case playback_state_disk: {  
                     if (!DiskStreamRef.pStream) {  
                         // check if the disk thread created our ordered disk stream in the meantime  
                         DiskStreamRef.pStream = pDiskThread->AskForCreatedStream(DiskStreamRef.OrderID);  
                         if (!DiskStreamRef.pStream) {  
                             std::cout << stderr << "Disk stream not available in time!" << std::endl << std::flush;  
                             KillImmediately();  
                             return;  
                         }  
                         DiskStreamRef.pStream->IncrementReadPos(pSample->Channels * (int(finalSynthesisParameters.dPos) - MaxRAMPos));  
                         finalSynthesisParameters.dPos -= int(finalSynthesisParameters.dPos);  
                         RealSampleWordsLeftToRead = -1; // -1 means no silence has been added yet  
                     }  
   
                     const int sampleWordsLeftToRead = DiskStreamRef.pStream->GetReadSpace();  
   
                     // add silence sample at the end if we reached the end of the stream (for the interpolator)  
                     if (DiskStreamRef.State == Stream::state_end) {  
                         const int maxSampleWordsPerCycle = (pEngine->MaxSamplesPerCycle << CONFIG_MAX_PITCH) * pSample->Channels + 6; // +6 for the interpolator algorithm  
                         if (sampleWordsLeftToRead <= maxSampleWordsPerCycle) {  
                             // remember how many sample words there are before any silence has been added  
                             if (RealSampleWordsLeftToRead < 0) RealSampleWordsLeftToRead = sampleWordsLeftToRead;  
                             DiskStreamRef.pStream->WriteSilence(maxSampleWordsPerCycle - sampleWordsLeftToRead);  
                         }  
                     }  
   
                     sample_t* ptr = DiskStreamRef.pStream->GetReadPtr(); // get the current read_ptr within the ringbuffer where we read the samples from  
   
                     // render current audio fragment  
                     Synthesize(Samples, ptr, Delay);  
   
                     const int iPos = (int) finalSynthesisParameters.dPos;  
                     const int readSampleWords = iPos * pSample->Channels; // amount of sample words actually been read  
                     DiskStreamRef.pStream->IncrementReadPos(readSampleWords);  
                     finalSynthesisParameters.dPos -= iPos; // just keep fractional part of playback position  
   
                     // change state of voice to 'end' if we really reached the end of the sample data  
                     if (RealSampleWordsLeftToRead >= 0) {  
                         RealSampleWordsLeftToRead -= readSampleWords;  
                         if (RealSampleWordsLeftToRead <= 0) this->PlaybackState = playback_state_end;  
                     }  
                 }  
                 break;  
   
             case playback_state_end:  
                 std::cerr << "gig::Voice::Render(): entered with playback_state_end, this is a bug!\n" << std::flush;  
                 break;  
         }  
   
         // Reset delay  
         Delay = 0;  
   
         itTriggerEvent = Pool<Event>::Iterator();  
   
         // If sample stream or release stage finished, kill the voice  
         if (PlaybackState == playback_state_end || EG1.getSegmentType() == EGADSR::segment_end) KillImmediately();  
     }  
   
     /**  
      *  Resets voice variables. Should only be called if rendering process is  
      *  suspended / not running.  
      */  
     void Voice::Reset() {  
         finalSynthesisParameters.filterLeft.Reset();  
         finalSynthesisParameters.filterRight.Reset();  
         DiskStreamRef.pStream = NULL;  
         DiskStreamRef.hStream = 0;  
         DiskStreamRef.State   = Stream::state_unused;  
         DiskStreamRef.OrderID = 0;  
         PlaybackState = playback_state_end;  
         itTriggerEvent = Pool<Event>::Iterator();  
         itKillEvent    = Pool<Event>::Iterator();  
     }  
   
     /**  
      * Process given list of MIDI note on, note off and sustain pedal events  
      * for the given time.  
      *  
      * @param itEvent - iterator pointing to the next event to be processed  
      * @param End     - youngest time stamp where processing should be stopped  
      */  
     void Voice::processTransitionEvents(RTList<Event>::Iterator& itEvent, uint End) {  
         for (; itEvent && itEvent->FragmentPos() <= End; ++itEvent) {  
             if (itEvent->Type == Event::type_release) {  
                 EG1.update(EGADSR::event_release, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);  
                 EG2.update(EGADSR::event_release, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);  
             } else if (itEvent->Type == Event::type_cancel_release) {  
                 EG1.update(EGADSR::event_cancel_release, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);  
                 EG2.update(EGADSR::event_cancel_release, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);  
             }  
417          }          }
     }  
418    
419      /**          return ctrl;
      * Process given list of MIDI control change and pitch bend 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::processCCEvents(RTList<Event>::Iterator& itEvent, uint End) {  
         for (; itEvent && itEvent->FragmentPos() <= End; ++itEvent) {  
             if (itEvent->Type == Event::type_control_change &&  
                 itEvent->Param.CC.Controller) { // if (valid) MIDI control change event  
                 if (itEvent->Param.CC.Controller == VCFCutoffCtrl.controller) {  
                     processCutoffEvent(itEvent);  
                 }  
                 if (itEvent->Param.CC.Controller == VCFResonanceCtrl.controller) {  
                     processResonanceEvent(itEvent);  
                 }  
                 if (itEvent->Param.CC.Controller == pLFO1->ExtController) {  
                     pLFO1->update(itEvent->Param.CC.Value);  
                 }  
                 if (itEvent->Param.CC.Controller == pLFO2->ExtController) {  
                     pLFO2->update(itEvent->Param.CC.Value);  
                 }  
                 if (itEvent->Param.CC.Controller == pLFO3->ExtController) {  
                     pLFO3->update(itEvent->Param.CC.Value);  
                 }  
                 if (pDimRgn->AttenuationController.type == ::gig::attenuation_ctrl_t::type_controlchange &&  
                     itEvent->Param.CC.Controller == pDimRgn->AttenuationController.controller_number) {  
                     processCrossFadeEvent(itEvent);  
                 }  
             } else if (itEvent->Type == Event::type_pitchbend) { // if pitch bend event  
                 processPitchEvent(itEvent);  
             }  
         }  
420      }      }
421    
422      void Voice::processPitchEvent(RTList<Event>::Iterator& itEvent) {      uint8_t Voice::GetVCFResonanceCtrl() {
423          const float pitch = RTMath::CentsToFreqRatio(((double) itEvent->Param.Pitch.Pitch / 8192.0) * 200.0); // +-two semitones = +-200 cents          uint8_t ctrl;
424          finalSynthesisParameters.fFinalPitch *= pitch;          switch (pRegion->VCFResonanceController) {
425          PitchBend = pitch;              case ::gig::vcf_res_ctrl_genpurpose3:
426      }                  ctrl = 18;
427                    break;
428                case ::gig::vcf_res_ctrl_genpurpose4:
429                    ctrl = 19;
430                    break;
431                case ::gig::vcf_res_ctrl_genpurpose5:
432                    ctrl = 80;
433                    break;
434                case ::gig::vcf_res_ctrl_genpurpose6:
435                    ctrl = 81;
436                    break;
437                case ::gig::vcf_res_ctrl_none:
438                default:
439                    ctrl = 0;
440            }
441    
442      void Voice::processCrossFadeEvent(RTList<Event>::Iterator& itEvent) {          return ctrl;
         CrossfadeVolume = CrossfadeAttenuation(itEvent->Param.CC.Value);  
         fFinalVolume = getVolume();  
443      }      }
444    
445      float Voice::getVolume() {      void Voice::TriggerEG1(const EGInfo& egInfo, double velrelease, double velocityAttenuation, uint sampleRate, uint8_t velocity) {
446          #if CONFIG_PROCESS_MUTED_CHANNELS          EG1.trigger(pRegion->EG1PreAttack,
447          return pEngineChannel->GetMute() ? 0 : (Volume * CrossfadeVolume * pEngineChannel->GlobalVolume);                      pRegion->EG1Attack * egInfo.Attack,
448          #else                      pRegion->EG1Hold,
449          return Volume * CrossfadeVolume * pEngineChannel->GlobalVolume;                      pRegion->EG1Decay1 * egInfo.Decay * velrelease,
450          #endif                      pRegion->EG1Decay2 * egInfo.Decay * velrelease,
451                        pRegion->EG1InfiniteSustain,
452                        pRegion->EG1Sustain,
453                        pRegion->EG1Release * egInfo.Release * velrelease,
454                        velocityAttenuation,
455                        sampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
456      }      }
457    
458      void Voice::processCutoffEvent(RTList<Event>::Iterator& itEvent) {      void Voice::TriggerEG2(const EGInfo& egInfo, double velrelease, double velocityAttenuation, uint sampleRate, uint8_t velocity) {
459          int ccvalue = itEvent->Param.CC.Value;          EG2.trigger(uint(RgnInfo.EG2PreAttack),
460          if (VCFCutoffCtrl.value == ccvalue) return;                      RgnInfo.EG2Attack * egInfo.Attack,
461          VCFCutoffCtrl.value == ccvalue;                      false,
462          if (pDimRgn->VCFCutoffControllerInvert)  ccvalue = 127 - ccvalue;                      RgnInfo.EG2Decay1 * egInfo.Decay * velrelease,
463          if (ccvalue < pDimRgn->VCFVelocityScale) ccvalue = pDimRgn->VCFVelocityScale;                      RgnInfo.EG2Decay2 * egInfo.Decay * velrelease,
464          float cutoff = CutoffBase * float(ccvalue) * 0.00787402f; // (1 / 127)                      RgnInfo.EG2InfiniteSustain,
465          if (cutoff > 1.0) cutoff = 1.0;                      uint(RgnInfo.EG2Sustain),
466          cutoff = (cutoff < 0.5 ? cutoff * 4826 - 1 : cutoff * 5715 - 449);                      RgnInfo.EG2Release * egInfo.Release * velrelease,
467          if (cutoff < 1.0) cutoff = 1.0;                      velocityAttenuation,
468                        sampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
         VCFCutoffCtrl.fvalue = cutoff - 1.0; // needed for initialization of fFinalCutoff next time  
         fFinalCutoff = cutoff;  
469      }      }
470    
471      void Voice::processResonanceEvent(RTList<Event>::Iterator& itEvent) {      void Voice::ProcessGroupEvent(RTList<Event>::Iterator& itEvent) {
472          // convert absolute controller value to differential          dmsg(4,("Voice %x processGroupEvents event type=%d", this, itEvent->Type));
         const int ctrldelta = itEvent->Param.CC.Value - VCFResonanceCtrl.value;  
         VCFResonanceCtrl.value = itEvent->Param.CC.Value;  
         const float resonancedelta = (float) ctrldelta * 0.00787f; // 0.0..1.0  
         fFinalResonance += resonancedelta;  
         // needed for initialization of parameter  
         VCFResonanceCtrl.fvalue = itEvent->Param.CC.Value * 0.00787f;  
     }  
   
     /**  
      *  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->pOutputLeft[Skip];  
         finalSynthesisParameters.pOutRight = &pEngineChannel->pOutputRight[Skip];  
         finalSynthesisParameters.pSrc      = pSrc;  
   
         RTList<Event>::Iterator itCCEvent = pEngineChannel->pEvents->first();  
         RTList<Event>::Iterator itNoteEvent = pEngineChannel->pMIDIKeyInfo[MIDIKey].pEvents->first();  
   
         if (Skip) { // skip events that happened before this voice was triggered  
             while (itCCEvent && itCCEvent->FragmentPos() <= Skip) ++itCCEvent;  
             while (itNoteEvent && itNoteEvent->FragmentPos() <= Skip) ++itNoteEvent;  
         }  
   
         uint killPos;  
         if (itKillEvent) killPos = RTMath::Min(itKillEvent->FragmentPos(), pEngine->MaxFadeOutPos);  
   
         uint i = Skip;  
         while (i < Samples) {  
             int iSubFragmentEnd = RTMath::Min(i + CONFIG_DEFAULT_SUBFRAGMENT_SIZE, Samples);  
   
             // initialize all final synthesis parameters  
             finalSynthesisParameters.fFinalPitch = PitchBase * PitchBend;  
             fFinalVolume    = getVolume();  
             fFinalCutoff    = VCFCutoffCtrl.fvalue;  
             fFinalResonance = VCFResonanceCtrl.fvalue;  
   
             // process MIDI control change and pitchbend events for this subfragment  
             processCCEvents(itCCEvent, iSubFragmentEnd);  
   
             // process transition events (note on, note off & sustain pedal)  
             processTransitionEvents(itNoteEvent, iSubFragmentEnd);  
   
             // if the voice was killed in this subfragment switch EG1 to fade out stage  
             if (itKillEvent && killPos <= iSubFragmentEnd) {  
                 EG1.enterFadeOutStage();  
                 itKillEvent = Pool<Event>::Iterator();  
             }  
473    
474              // process envelope generators          // TODO: The SustainPedal condition could be wrong, maybe the
475              switch (EG1.getSegmentType()) {          // check should be if this Voice is in release stage or is a
476                  case EGADSR::segment_lin:          // release sample instead. Need to test this in GSt.
477                      fFinalVolume *= EG1.processLin();          if (itEvent->Param.Note.Key != MIDIKey ||
478                      break;              !GetGigEngineChannel()->SustainPedal) {
479                  case EGADSR::segment_exp:              dmsg(4,("Voice %x - kill", this));
                     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();  
480    
481              // process low frequency oscillators              // kill the voice fast
482              if (bLFO1Enabled) fFinalVolume *= pLFO1->render();              pEG1->enterFadeOutStage();
             if (bLFO2Enabled) fFinalCutoff *= pLFO2->render();  
             if (bLFO3Enabled) finalSynthesisParameters.fFinalPitch *= RTMath::CentsToFreqRatio(pLFO3->render());  
   
             // if filter enabled then update filter coefficients  
             if (SYNTHESIS_MODE_GET_FILTER(SynthesisMode)) {  
                 finalSynthesisParameters.filterLeft.SetParameters(fFinalCutoff + 1.0, fFinalResonance, pEngine->SampleRate);  
                 finalSynthesisParameters.filterRight.SetParameters(fFinalCutoff + 1.0, 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);  
   
             // prepare final synthesis parameters structure  
             finalSynthesisParameters.uiToGo            = iSubFragmentEnd - i;  
 #ifdef CONFIG_INTERPOLATE_VOLUME  
             finalSynthesisParameters.fFinalVolumeDeltaLeft  =  
                 (fFinalVolume * PanLeft - finalSynthesisParameters.fFinalVolumeLeft) / finalSynthesisParameters.uiToGo;  
             finalSynthesisParameters.fFinalVolumeDeltaRight =  
                 (fFinalVolume * PanRight - finalSynthesisParameters.fFinalVolumeRight) / finalSynthesisParameters.uiToGo;  
 #else  
             finalSynthesisParameters.fFinalVolumeLeft  = fFinalVolume * PanLeft;  
             finalSynthesisParameters.fFinalVolumeRight = fFinalVolume * PanRight;  
 #endif  
             // render audio for one subfragment  
             RunSynthesisFunction(SynthesisMode, &finalSynthesisParameters, &loop);  
   
             // stop the rendering if volume EG is finished  
             if (EG1.getSegmentType() == EGADSR::segment_end) break;  
   
             const double newPos = Pos + (iSubFragmentEnd - i) * finalSynthesisParameters.fFinalPitch;  
   
             // increment envelopes' positions  
             if (EG1.active()) {  
   
                 // if sample has a loop and loop start has been reached in this subfragment, send a special event to EG1 to let it finish the attack hold stage  
                 if (pSample->Loops && Pos <= pSample->LoopStart && pSample->LoopStart < newPos) {  
                     EG1.update(EGADSR::event_hold_end, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);  
                 }  
   
                 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;  
483          }          }
484      }      }
485    
486      /** @brief Update current portamento position.      void Voice::CalculateFadeOutCoeff(float FadeOutTime, float SampleRate) {
487       *          EG1.CalculateFadeOutCoeff(FadeOutTime, SampleRate);
488       * Will be called when portamento mode is enabled to get the final      }
489       * portamento position of this active voice from where the next voice(s)  
490       * might continue to slide on.      int Voice::CalculatePan(uint8_t pan) {
491       *          int p;
492       * @param itNoteOffEvent - event which causes this voice to die soon          // Gst behaviour: -64 and 63 are special cases
493       */          if (RgnInfo.Pan == -64)     p = pan * 2 - 127;
494      void Voice::UpdatePortamentoPos(Pool<Event>::Iterator& itNoteOffEvent) {          else if (RgnInfo.Pan == 63) p = pan * 2;
495          const float fFinalEG3Level = EG3.level(itNoteOffEvent->FragmentPos());          else                        p = pan + RgnInfo.Pan;
         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!  
      *  
      *  @see Kill()  
      */  
     void Voice::KillImmediately() {  
         if (DiskVoice && DiskStreamRef.State != Stream::state_unused) {  
             pDiskThread->OrderDeletionOfStream(&DiskStreamRef);  
         }  
         Reset();  
     }  
   
     /**  
      *  Kill the voice in regular sense. Let the voice render audio until  
      *  the kill event actually occured and then fade down the volume level  
      *  very quickly and let the voice die finally. Unlike a normal release  
      *  of a voice, a kill process cannot be cancalled and is therefore  
      *  usually used for voice stealing and key group conflicts.  
      *  
      *  @param itKillEvent - event which caused the voice to be killed  
      */  
     void Voice::Kill(Pool<Event>::Iterator& itKillEvent) {  
         #if CONFIG_DEVMODE  
         if (!itKillEvent) dmsg(1,("gig::Voice::Kill(): ERROR, !itKillEvent !!!\n"));  
         if (itKillEvent && !itKillEvent.isValid()) dmsg(1,("gig::Voice::Kill(): ERROR, itKillEvent invalid !!!\n"));  
         #endif // CONFIG_DEVMODE  
496    
497          if (itTriggerEvent && itKillEvent->FragmentPos() <= itTriggerEvent->FragmentPos()) return;          if (p < 0) return 0;
498          this->itKillEvent = itKillEvent;          if (p > 127) return 127;
499            return p;
500      }      }
501    
502  }} // namespace LinuxSampler::gig  }} // namespace LinuxSampler::gig
Legend:
Removed from v.830  
changed lines
  Added in v.2382
  ViewVC Help
Powered by ViewVC