/[svn]/linuxsampler/trunk/src/engines/sf2/Voice.cpp
ViewVC logotype

Diff of /linuxsampler/trunk/src/engines/sf2/Voice.cpp

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

revision 2012 by iliev, Fri Oct 23 17:53:17 2009 UTC revision 3444 by schoenebeck, Sun Dec 23 19:32:11 2018 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 - 2016 Christian Schoenebeck and Grigor Iliev      *
8   *                                                                         *   *                                                                         *
9   *   This program is free software; you can redistribute it and/or modify  *   *   This program is free software; you can redistribute it and/or modify  *
10   *   it under the terms of the GNU General Public License as published by  *   *   it under the terms of the GNU General Public License as published by  *
# Line 21  Line 22 
22   *   MA  02111-1307  USA                                                   *   *   MA  02111-1307  USA                                                   *
23   ***************************************************************************/   ***************************************************************************/
24    
25  #include "../../common/Features.h"  #include "Voice.h"
26  #include "../gig/Synthesizer.h"  
 #include "../gig/Profiler.h"  
27  #include "Engine.h"  #include "Engine.h"
28  #include "EngineChannel.h"  #include "EngineChannel.h"
29    
 #include "Voice.h"  
   
30  namespace LinuxSampler { namespace sf2 {  namespace LinuxSampler { namespace sf2 {
31    
32      typedef LinuxSampler::gig::Profiler Profiler; // TODO: remove      typedef LinuxSampler::VoiceBase<EngineChannel, ::sf2::Region, ::sf2::Sample, DiskThread> SF2VoiceBase;
   
     Voice::Voice() {  
         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());  
33    
34          finalSynthesisParameters.filterLeft.Reset();      Voice::Voice(): SF2VoiceBase(&SignalRack), SignalRack(this) {
35          finalSynthesisParameters.filterRight.Reset();          pEngine = NULL;
36            pEG1 = NULL;
37            pEG2 = NULL;
38      }      }
39    
40      Voice::~Voice() {      Voice::~Voice() {
41          if (pLFO1) delete pLFO1;  
42          if (pLFO2) delete pLFO2;      }
43          if (pLFO3) delete pLFO3;  
44        void Voice::AboutToTrigger() {
45            
46        }
47    
48        EngineChannel* Voice::GetSf2EngineChannel() {
49            return static_cast<EngineChannel*>(pEngineChannel);
50      }      }
51    
52      void Voice::SetEngine(LinuxSampler::Engine* pEngine) {      void Voice::SetEngine(LinuxSampler::Engine* pEngine) {
# Line 67  namespace LinuxSampler { namespace sf2 { Line 56  namespace LinuxSampler { namespace sf2 {
56          dmsg(6,("Voice::SetEngine()\n"));          dmsg(6,("Voice::SetEngine()\n"));
57      }      }
58    
59      /**      Voice::SampleInfo Voice::GetSampleInfo() {
60       *  Initializes and triggers the voice, a disk stream will be launched if          SampleInfo si;
61       *  needed.          si.SampleRate       = pSample->SampleRate;
62       *          si.ChannelCount     = pSample->GetChannelCount();
63       *  @param pEngineChannel - engine channel on which this voice was ordered          si.FrameSize        = pSample->GetFrameSize();
64       *  @param itNoteOnEvent  - event that caused triggering of this voice          si.BitDepth         = (pSample->GetFrameSize() / pSample->GetChannelCount()) * 8;
65       *  @param PitchBend      - MIDI detune factor (-8192 ... +8191)          si.TotalFrameCount  = (uint)pSample->GetTotalFrameCount();
66       *  @param pRegion        - points to the dimension region which provides sample wave(s) and articulation data  
67       *  @param VoiceType      - type of this voice          si.HasLoops       = pRegion->HasLoop;
68       *  @param iKeyGroup      - a value > 0 defines a key group in which this voice is member of          si.LoopStart      = (si.HasLoops) ? pRegion->LoopStart : 0;
69       *  @returns 0 on success, a value < 0 if the voice wasn't triggered          si.LoopLength     = (si.HasLoops) ? ((pRegion->LoopEnd) - pRegion->LoopStart): 0;
70       *           (either due to an error or e.g. because no region is          si.LoopPlayCount  = 0; // TODO:
71       *           defined for the given key)          si.Unpitched      = pSample->IsUnpitched();
72       */  
73      int Voice::Trigger(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itNoteOnEvent, int PitchBend, ::sf2::Region* pRegion, type_t VoiceType, int iKeyGroup) {          return si;
74          this->pEngineChannel = pEngineChannel;      }
75          this->pRegion        = pRegion;  
76          Orphan = false;      Voice::RegionInfo Voice::GetRegionInfo() {
77            ::sf2::Region* reg = NULL;
78          #if CONFIG_DEVMODE          ::sf2::Preset* preset = GetSf2EngineChannel()->pInstrument;
79          if (itNoteOnEvent->FragmentPos() > pEngine->MaxSamplesPerCycle) { // just a sanity check for debugging          for (int i = 0; i < preset->GetRegionCount(); i++) { // TODO: some optimization?
80              dmsg(1,("Voice::Trigger(): ERROR, TriggerDelay > Totalsamples\n"));              if (preset->GetRegion(i)->pInstrument == pRegion->GetParentInstrument()) {
81          }                  reg = preset->GetRegion(i); // TODO: Can the instrument belong to more than one preset region?
         #endif // CONFIG_DEVMODE  
   
         Type            = VoiceType;  
         MIDIKey         = itNoteOnEvent->Param.Note.Key;  
         PlaybackState   = playback_state_init; // mark voice as triggered, but no audio rendered yet  
         Delay           = itNoteOnEvent->FragmentPos();  
         itTriggerEvent  = itNoteOnEvent;  
         itKillEvent     = Pool<Event>::Iterator();  
         KeyGroup        = iKeyGroup;  
         pSample         = 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: ^^^  
   
         // select channel mode (mono or stereo)  
         SYNTHESIS_MODE_SET_CHANNELS(SynthesisMode, pSample->GetChannelCount() == 2);  
         // select bit depth (16 or 24)  
         SYNTHESIS_MODE_SET_BITDEPTH24(SynthesisMode, (pSample->GetFrameSize() / pSample->GetChannelCount()) > 2);  
   
         // get starting crossfade volume level  
         /*float crossfadeVolume;  
         switch (pRegion->AttenuationController.type) {  
             case ::gig::attenuation_ctrl_t::type_channelaftertouch:  
                 crossfadeVolume = Engine::CrossfadeCurve[CrossfadeAttenuation(pEngineChannel->ControllerTable[128])];  
                 break;  
             case ::gig::attenuation_ctrl_t::type_velocity:  
                 crossfadeVolume = Engine::CrossfadeCurve[CrossfadeAttenuation(itNoteOnEvent->Param.Note.Velocity)];  
                 break;  
             case ::gig::attenuation_ctrl_t::type_controlchange: //FIXME: currently not sample accurate  
                 crossfadeVolume = Engine::CrossfadeCurve[CrossfadeAttenuation(pEngineChannel->ControllerTable[pRegion->AttenuationController.controller_number])];  
82                  break;                  break;
83              case ::gig::attenuation_ctrl_t::type_none: // no crossfade defined              }
84              default:          }
85                  crossfadeVolume = 1.0f;          pPresetRegion = reg;
         }*/ // TODO: ^^^  
86    
87          VolumeLeft  = volume * Engine::PanCurve[64 - pRegion->pan];          RegionInfo ri;
88          VolumeRight = volume * Engine::PanCurve[64 + pRegion->pan];          ri.UnityNote = pRegion->GetUnityNote();
89            ri.FineTune  = pRegion->GetFineTune(reg) + (pRegion->GetCoarseTune(reg) * 100);
90            ri.Pan       = pRegion->GetPan(reg);
91            ri.SampleStartOffset = pRegion->startAddrsOffset + pRegion->startAddrsCoarseOffset;
92    
93          float subfragmentRate = pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE;          // sample pitch
94          //CrossfadeSmoother.trigger(crossfadeVolume, subfragmentRate); // TODO:          ri.VCFEnabled    = true; // TODO:
95          VolumeSmoother.trigger(pEngineChannel->MidiVolume, subfragmentRate);          ri.VCFType       = Filter::vcf_type_2p_lowpass; // TODO:
96          PanLeftSmoother.trigger(pEngineChannel->GlobalPanLeft, subfragmentRate);          ri.VCFResonance  = 0; // TODO:
         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;  
             }  
97    
98              // check if there's a loop defined which completely fits into the cached (RAM) part of the sample          ri.ReleaseTriggerDecay = 0; // TODO:
             //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: ^^^  
99    
100          // calculate initial pitch value          return ri;
101          {      }
             double pitchbasecents = /* TODO: pEngineChannel->pInstrument->FineTune*/ + pRegion->fineTune + pEngine->ScaleTuning[MIDIKey % 12];  
   
             // GSt behaviour: maximum transpose up is 40 semitones. If  
             // MIDI key is more than 40 semitones above unity note,  
             // the transpose is not done.  
             /*if (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: ^^^  
         }  
102    
103          // the length of the decay and release curves are dependent on the velocity      Voice::InstrumentInfo Voice::GetInstrumentInfo() {
104          //const double velrelease = 1 / pRegion->GetVelocityRelease(itNoteOnEvent->Param.Note.Velocity); //TODO:          InstrumentInfo ii;
105            ii.FineTune = 0; // TODO:
106            ii.PitchbendRange = 2; // TODO:
107    
108          // setup EG 1 (VCA EG)          return ii;
109          {      }
         /*    // 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;  
110    
111              // calculate influence of EG1 controller on EG1's parameters      double Voice::GetSampleAttenuation() {
112              // (eg1attack is different from the others)          return 1.0; // TODO:
113              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);  
         }  
114    
115  #ifdef CONFIG_INTERPOLATE_VOLUME      double Voice::GetVelocityAttenuation(uint8_t MIDIKeyVelocity) {
116          // setup initial volume in synthesis parameters          return double(MIDIKeyVelocity) / 127.0f; // TODO:
117  #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;  
118    
119              finalSynthesisParameters.fFinalVolumeLeft  = finalVolume * VolumeLeft  * pEngineChannel->GlobalPanLeft;      double Voice::GetVelocityRelease(uint8_t MIDIKeyVelocity) {
120              finalSynthesisParameters.fFinalVolumeRight = finalVolume * VolumeRight * pEngineChannel->GlobalPanRight;          return 0.9; // TODO:
121          }      }
 #endif  
 #endif  
122    
123          // setup EG 2 (VCF Cutoff EG)      void Voice::ProcessCCEvent(RTList<Event>::Iterator& itEvent) {
124          /*{          /*if (itEvent->Type == Event::type_control_change && itEvent->Param.CC.Controller) { // if (valid) MIDI control change event
125              // get current value of EG2 controller              if (pRegion->AttenuationController.type == ::gig::attenuation_ctrl_t::type_controlchange &&
126              double eg2controllervalue;                  itEvent->Param.CC.Controller == pRegion->AttenuationController.controller_number) {
127              switch (pRegion->EG2Controller.type) {                  CrossfadeSmoother.update(AbstractEngine::CrossfadeCurve[CrossfadeAttenuation(itEvent->Param.CC.Value)]);
                 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;  
128              }              }
129              if (pRegion->EG2ControllerInvert) eg2controllervalue = 127 - eg2controllervalue;          }*/ // TODO: ^^^
130        }
131        
132        void Voice::ProcessChannelPressureEvent(RTList<Event>::Iterator& itEvent) {
133            //TODO: ...
134        }
135        
136        void Voice::ProcessPolyphonicKeyPressureEvent(RTList<Event>::Iterator& itEvent) {
137            //TODO: ...
138        }
139    
140              // calculate influence of EG2 controller on EG2's parameters      void Voice::ProcessCutoffEvent(RTList<Event>::Iterator& itEvent) {
141              double eg2attack  = (pRegion->EG2ControllerAttackInfluence)  ? 1 + 0.00775 * (double) (1 << pRegion->EG2ControllerAttackInfluence)  * eg2controllervalue : 1.0;          /*int ccvalue = itEvent->Param.CC.Value;
142              double eg2decay   = (pRegion->EG2ControllerDecayInfluence)   ? 1 + 0.00775 * (double) (1 << pRegion->EG2ControllerDecayInfluence)   * eg2controllervalue : 1.0;          if (VCFCutoffCtrl.value == ccvalue) return;
143              double eg2release = (pRegion->EG2ControllerReleaseInfluence) ? 1 + 0.00775 * (double) (1 << pRegion->EG2ControllerReleaseInfluence) * eg2controllervalue : 1.0;          VCFCutoffCtrl.value == ccvalue;
144            if (pRegion->VCFCutoffControllerInvert)  ccvalue = 127 - ccvalue;
145              EG2.trigger(pRegion->EG2PreAttack,          if (ccvalue < pRegion->VCFVelocityScale) ccvalue = pRegion->VCFVelocityScale;
146                          pRegion->EG2Attack * eg2attack,          float cutoff = CutoffBase * float(ccvalue);
147                          false,          if (cutoff > 127.0f) cutoff = 127.0f;
                         pRegion->EG2Decay1 * eg2decay * velrelease,  
                         pRegion->EG2Decay2 * eg2decay * velrelease,  
                         pRegion->EG2InfiniteSustain,  
                         pRegion->EG2Sustain,  
                         pRegion->EG2Release * eg2release * velrelease,  
                         velocityAttenuation,  
                         pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);  
         }  
148    
149            VCFCutoffCtrl.fvalue = cutoff; // needed for initialization of fFinalCutoff next time
150            fFinalCutoff = cutoff;*/ // TODO: ^^^
151        }
152    
153          // setup EG 3 (VCO EG)      double Voice::CalculateCrossfadeVolume(uint8_t MIDIKeyVelocity) {
154          {          /*float crossfadeVolume;
155              // 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->AttenuationController.type) {
156              bool  bPortamento = pEngineChannel->PortamentoMode && pEngineChannel->PortamentoPos >= 0.0f;              case ::gig::attenuation_ctrl_t::type_channelaftertouch:
157              float eg3depth = (bPortamento)                  crossfadeVolume = Engine::CrossfadeCurve[CrossfadeAttenuation(GetSf2EngineChannel()->ControllerTable[128])];
158                                   ? RTMath::CentsToFreqRatio((pEngineChannel->PortamentoPos - (float) MIDIKey) * 100)                  break;
159                                   : RTMath::CentsToFreqRatio(pRegion->EG3Depth);              case ::gig::attenuation_ctrl_t::type_velocity:
160              float eg3time = (bPortamento)                  crossfadeVolume = Engine::CrossfadeCurve[CrossfadeAttenuation(MIDIKeyVelocity)];
161                                  ? pEngineChannel->PortamentoTime                  break;
162                                  : pRegion->EG3Attack;              case ::gig::attenuation_ctrl_t::type_controlchange: //FIXME: currently not sample accurate
163              EG3.trigger(eg3depth, eg3time, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);                  crossfadeVolume = Engine::CrossfadeCurve[CrossfadeAttenuation(GetSf2EngineChannel()->ControllerTable[pRegion->AttenuationController.controller_number])];
164              dmsg(5,("PortamentoPos=%f, depth=%f, time=%f\n", pEngineChannel->PortamentoPos, eg3depth, eg3time));                  break;
165                case ::gig::attenuation_ctrl_t::type_none: // no crossfade defined
166                default:
167                    crossfadeVolume = 1.0f;
168          }          }
169    
170            return crossfadeVolume;*/ // TODO: ^^^
171            return 1.0f;
172        }
173    
174          // setup LFO 1 (VCA LFO)      double Voice::GetEG1ControllerValue(uint8_t MIDIKeyVelocity) {
175          {          /*double eg1controllervalue = 0;
176              uint16_t lfo1_internal_depth;          switch (pRegion->EG1Controller.type) {
177              switch (pRegion->LFO1Controller) {              case ::gig::eg1_ctrl_t::type_none: // no controller defined
178                  case ::gig::lfo1_ctrl_internal:                  eg1controllervalue = 0;
179                      lfo1_internal_depth  = pRegion->LFO1InternalDepth;                  break;
180                      pLFO1->ExtController = 0; // no external controller              case ::gig::eg1_ctrl_t::type_channelaftertouch:
181                      bLFO1Enabled         = (lfo1_internal_depth > 0);                  eg1controllervalue = GetSf2EngineChannel()->ControllerTable[128];
182                      break;                  break;
183                  case ::gig::lfo1_ctrl_modwheel:              case ::gig::eg1_ctrl_t::type_velocity:
184                      lfo1_internal_depth  = 0;                  eg1controllervalue = MIDIKeyVelocity;
185                      pLFO1->ExtController = 1; // MIDI controller 1                  break;
186                      bLFO1Enabled         = (pRegion->LFO1ControlDepth > 0);              case ::gig::eg1_ctrl_t::type_controlchange: // MIDI control change controller
187                      break;                  eg1controllervalue = GetSf2EngineChannel()->ControllerTable[pRegion->EG1Controller.controller_number];
188                  case ::gig::lfo1_ctrl_breath:                  break;
                     lfo1_internal_depth  = 0;  
                     pLFO1->ExtController = 2; // MIDI controller 2  
                     bLFO1Enabled         = (pRegion->LFO1ControlDepth > 0);  
                     break;  
                 case ::gig::lfo1_ctrl_internal_modwheel:  
                     lfo1_internal_depth  = pRegion->LFO1InternalDepth;  
                     pLFO1->ExtController = 1; // MIDI controller 1  
                     bLFO1Enabled         = (lfo1_internal_depth > 0 || pRegion->LFO1ControlDepth > 0);  
                     break;  
                 case ::gig::lfo1_ctrl_internal_breath:  
                     lfo1_internal_depth  = pRegion->LFO1InternalDepth;  
                     pLFO1->ExtController = 2; // MIDI controller 2  
                     bLFO1Enabled         = (lfo1_internal_depth > 0 || pRegion->LFO1ControlDepth > 0);  
                     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);  
             }  
189          }          }
190            if (pRegion->EG1ControllerInvert) eg1controllervalue = 127 - eg1controllervalue;
191    
192            return eg1controllervalue;*/ // TODO: ^^^
193            return 0;
194        }
195    
196          // setup LFO 2 (VCF Cutoff LFO)      Voice::EGInfo Voice::CalculateEG1ControllerInfluence(double eg1ControllerValue) {
197          {          /*EGInfo eg;
198              uint16_t lfo2_internal_depth;          // (eg1attack is different from the others)
199              switch (pRegion->LFO2Controller) {          eg.Attack  = (pRegion->EG1ControllerAttackInfluence)  ?
200                  case ::gig::lfo2_ctrl_internal:              1 + 0.031 * (double) (pRegion->EG1ControllerAttackInfluence == 1 ?
201                      lfo2_internal_depth  = pRegion->LFO2InternalDepth;                                    1 : 1 << pRegion->EG1ControllerAttackInfluence) * eg1ControllerValue : 1.0;
202                      pLFO2->ExtController = 0; // no external controller          eg.Decay   = (pRegion->EG1ControllerDecayInfluence)   ? 1 + 0.00775 * (double) (1 << pRegion->EG1ControllerDecayInfluence)   * eg1ControllerValue : 1.0;
203                      bLFO2Enabled         = (lfo2_internal_depth > 0);          eg.Release = (pRegion->EG1ControllerReleaseInfluence) ? 1 + 0.00775 * (double) (1 << pRegion->EG1ControllerReleaseInfluence) * eg1ControllerValue : 1.0;
204                      break;  
205                  case ::gig::lfo2_ctrl_modwheel:          return eg;*/ // TODO: ^^^
206                      lfo2_internal_depth  = 0;          EGInfo eg;
207                      pLFO2->ExtController = 1; // MIDI controller 1          eg.Attack = 1.0;
208                      bLFO2Enabled         = (pRegion->LFO2ControlDepth > 0);          eg.Decay = 1.0;
209                      break;          eg.Release = 1.0;
210                  case ::gig::lfo2_ctrl_foot:          return eg;
211                      lfo2_internal_depth  = 0;      }
212                      pLFO2->ExtController = 4; // MIDI controller 4  
213                      bLFO2Enabled         = (pRegion->LFO2ControlDepth > 0);      double Voice::GetEG2ControllerValue(uint8_t MIDIKeyVelocity) {
214                      break;          /*double eg2controllervalue = 0;
215                  case ::gig::lfo2_ctrl_internal_modwheel:          switch (pRegion->EG2Controller.type) {
216                      lfo2_internal_depth  = pRegion->LFO2InternalDepth;              case ::gig::eg2_ctrl_t::type_none: // no controller defined
217                      pLFO2->ExtController = 1; // MIDI controller 1                  eg2controllervalue = 0;
218                      bLFO2Enabled         = (lfo2_internal_depth > 0 || pRegion->LFO2ControlDepth > 0);                  break;
219                      break;              case ::gig::eg2_ctrl_t::type_channelaftertouch:
220                  case ::gig::lfo2_ctrl_internal_foot:                  eg2controllervalue = GetSf2EngineChannel()->ControllerTable[128];
221                      lfo2_internal_depth  = pRegion->LFO2InternalDepth;                  break;
222                      pLFO2->ExtController = 4; // MIDI controller 4              case ::gig::eg2_ctrl_t::type_velocity:
223                      bLFO2Enabled         = (lfo2_internal_depth > 0 || pRegion->LFO2ControlDepth > 0);                  eg2controllervalue = MIDIKeyVelocity;
224                      break;                  break;
225                  default:              case ::gig::eg2_ctrl_t::type_controlchange: // MIDI control change controller
226                      lfo2_internal_depth  = 0;                  eg2controllervalue = GetSf2EngineChannel()->ControllerTable[pRegion->EG2Controller.controller_number];
227                      pLFO2->ExtController = 0; // no external controller                  break;
                     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);  
             }  
228          }          }
229            if (pRegion->EG2ControllerInvert) eg2controllervalue = 127 - eg2controllervalue;
230    
231            return eg2controllervalue;*/ // TODO: ^^^
232            return 0;
233        }
234    
235          // setup LFO 3 (VCO LFO)      Voice::EGInfo Voice::CalculateEG2ControllerInfluence(double eg2ControllerValue) {
236          {          /*EGInfo eg;
237              uint16_t lfo3_internal_depth;          eg.Attack  = (pRegion->EG2ControllerAttackInfluence)  ? 1 + 0.00775 * (double) (1 << pRegion->EG2ControllerAttackInfluence)  * eg2ControllerValue : 1.0;
238              switch (pRegion->LFO3Controller) {          eg.Decay   = (pRegion->EG2ControllerDecayInfluence)   ? 1 + 0.00775 * (double) (1 << pRegion->EG2ControllerDecayInfluence)   * eg2ControllerValue : 1.0;
239                  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  
240    
241              #ifdef CONFIG_OVERRIDE_RESONANCE_CTRL          return eg;*/ // TODO: ^^^
242              VCFResonanceCtrl.controller = CONFIG_OVERRIDE_RESONANCE_CTRL;          EGInfo eg;
243              #else // use the one defined in the instrument file          eg.Attack = 1.0;
244              switch (pRegion->VCFResonanceController) {          eg.Decay = 1.0;
245                  case ::gig::vcf_res_ctrl_genpurpose3:          eg.Release = 1.0;
246                      VCFResonanceCtrl.controller = 18;          return eg;
247                      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  
248    
249              #ifndef CONFIG_OVERRIDE_FILTER_TYPE      float Voice::CalculateCutoffBase(uint8_t MIDIKeyVelocity) {
250              finalSynthesisParameters.filterLeft.SetType(pRegion->VCFType);          float cutoff = pRegion->GetInitialFilterFc(pPresetRegion);
251              finalSynthesisParameters.filterRight.SetType(pRegion->VCFType);          if (MIDIKeyVelocity == 0) return cutoff;
             #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;  
252    
253              int cvalue;          cutoff *= RTMath::CentsToFreqRatioUnlimited (
254              if (VCFCutoffCtrl.controller) {              ((127 - MIDIKeyVelocity) / 127.0) * -2400 // 8.4.2 MIDI Note-On Velocity to Filter Cutoff
255                  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;  
256    
257              // calculate resonance          return cutoff;
258              float resonance = (float) (VCFResonanceCtrl.controller ? VCFResonanceCtrl.value : pRegion->VCFResonance);      }
259    
260              VCFCutoffCtrl.fvalue    = cutoff;      float Voice::CalculateFinalCutoff(float cutoffBase) {
261              VCFResonanceCtrl.fvalue = resonance;          /*int cvalue;
262            if (VCFCutoffCtrl.controller) {
263                cvalue = GetSf2EngineChannel()->ControllerTable[VCFCutoffCtrl.controller];
264                if (pRegion->VCFCutoffControllerInvert) cvalue = 127 - cvalue;
265                // VCFVelocityScale in this case means Minimum cutoff
266                if (cvalue < pRegion->VCFVelocityScale) cvalue = pRegion->VCFVelocityScale;
267          }          }
268          else {          else {
269              VCFCutoffCtrl.controller    = 0;              cvalue = pRegion->VCFCutoff;
270              VCFResonanceCtrl.controller = 0;          }
271          }*/ // TODO: ^^^          float fco = cutoffBase * float(cvalue);
272            if (fco > 127.0f) fco = 127.0f;
273    
274          return 0; // success          return fco;*/ // TODO: ^^^
275            return cutoffBase;
276      }      }
277    
278      /**      uint8_t Voice::GetVCFCutoffCtrl() {
279       *  Renders the audio data for this voice for the current audio fragment.          /*uint8_t ctrl;
280       *  The sample input data can either come from RAM (cached sample or sample          switch (pRegion->VCFCutoffController) {
281       *  part) or directly from disk. The output signal will be rendered by              case ::gig::vcf_cutoff_ctrl_modwheel:
282       *  resampling / interpolation. If this voice is a disk streaming voice and                  ctrl = 1;
      *  the voice completely played back the cached RAM part of the sample, it  
      *  will automatically switch to disk playback for the next RenderAudio()  
      *  call.  
      *  
      *  @param Samples - number of samples to be rendered in this audio fragment cycle  
      */  
     void Voice::Render(uint Samples) {  
         // select default values for synthesis mode bits  
         SYNTHESIS_MODE_SET_LOOP(SynthesisMode, false);  
   
         switch (this->PlaybackState) {  
   
             case playback_state_init:  
                 this->PlaybackState = playback_state_ram; // we always start playback from RAM cache and switch then to disk if needed  
                 // no break - continue with playback_state_ram  
   
             case playback_state_ram: {  
                     //if (RAMLoop) SYNTHESIS_MODE_SET_LOOP(SynthesisMode, true); // enable looping  
   
                     // render current fragment  
                     Synthesize(Samples, (sample_t*) pSample->GetCache().pStart, Delay);  
                     /*uint8_t* pBuf = (uint8_t*)pSample->GetCache().pStart;  
                     pBuf += pRegion->startAddrsOffset * pSample->GetFrameSize();  
                     Synthesize(Samples, (sample_t*) pBuf, Delay);*/ // TODO: implement startAddrsOffset  
   
                     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;  
                     }  
                 }  
283                  break;                  break;
284                case ::gig::vcf_cutoff_ctrl_effect1:
285              case playback_state_end:                  ctrl = 12;
286                  std::cerr << "gig::Voice::Render(): entered with playback_state_end, this is a bug!\n" << std::flush;                  break;
287                case ::gig::vcf_cutoff_ctrl_effect2:
288                    ctrl = 13;
289                    break;
290                case ::gig::vcf_cutoff_ctrl_breath:
291                    ctrl = 2;
292                    break;
293                case ::gig::vcf_cutoff_ctrl_foot:
294                    ctrl = 4;
295                    break;
296                case ::gig::vcf_cutoff_ctrl_sustainpedal:
297                    ctrl = 64;
298                    break;
299                case ::gig::vcf_cutoff_ctrl_softpedal:
300                    ctrl = 67;
301                    break;
302                case ::gig::vcf_cutoff_ctrl_genpurpose7:
303                    ctrl = 82;
304                    break;
305                case ::gig::vcf_cutoff_ctrl_genpurpose8:
306                    ctrl = 83;
307                    break;
308                case ::gig::vcf_cutoff_ctrl_aftertouch:
309                    ctrl = CTRL_TABLE_IDX_AFTERTOUCH;
310                    break;
311                case ::gig::vcf_cutoff_ctrl_none:
312                default:
313                    ctrl = 0;
314                  break;                  break;
315          }          }
316    
317          // Reset delay          return ctrl;*/ // TODO: ^^^
318          Delay = 0;          return 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();  
319      }      }
320    
321      /**      uint8_t Voice::GetVCFResonanceCtrl() {
322       *  Resets voice variables. Should only be called if rendering process is          /*uint8_t ctrl;
323       *  suspended / not running.          switch (pRegion->VCFResonanceController) {
324       */              case ::gig::vcf_res_ctrl_genpurpose3:
325      void Voice::Reset() {                  ctrl = 18;
326          finalSynthesisParameters.filterLeft.Reset();                  break;
327          finalSynthesisParameters.filterRight.Reset();              case ::gig::vcf_res_ctrl_genpurpose4:
328          DiskStreamRef.pStream = NULL;                  ctrl = 19;
329          DiskStreamRef.hStream = 0;                  break;
330          DiskStreamRef.State   = Stream::state_unused;              case ::gig::vcf_res_ctrl_genpurpose5:
331          DiskStreamRef.OrderID = 0;                  ctrl = 80;
332          PlaybackState = playback_state_end;                  break;
333          itTriggerEvent = Pool<Event>::Iterator();              case ::gig::vcf_res_ctrl_genpurpose6:
334          itKillEvent    = Pool<Event>::Iterator();                  ctrl = 81;
335      }                  break;
336                case ::gig::vcf_res_ctrl_none:
337      /**              default:
338       * Process given list of MIDI note on, note off and sustain pedal events                  ctrl = 0;
      * 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);  
             }  
339          }          }
340    
341            return ctrl;*/ // TODO: ^^^
342            return 0;
343      }      }
344    
345      /**      void Voice::ProcessGroupEvent(RTList<Event>::Iterator& itEvent) {
346       * Process given list of MIDI control change and pitch bend events for          if (itEvent->Param.Note.Key != HostKey()) {
347       * the given time.              // kill the voice fast
348       *              SignalRack.EnterFadeOutStage();
      * @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 (pRegion->AttenuationController.type == ::gig::attenuation_ctrl_t::type_controlchange &&  
                     itEvent->Param.CC.Controller == pRegion->AttenuationController.controller_number) {  
                     CrossfadeSmoother.update(Engine::CrossfadeCurve[CrossfadeAttenuation(itEvent->Param.CC.Value)]);  
                 }*/ // TODO:  
                 if (itEvent->Param.CC.Controller == 7) { // volume  
                     VolumeSmoother.update(Engine::VolumeCurve[itEvent->Param.CC.Value]);  
                 } else if (itEvent->Param.CC.Controller == 10) { // panpot  
                     PanLeftSmoother.update(Engine::PanCurve[128 - itEvent->Param.CC.Value]);  
                     PanRightSmoother.update(Engine::PanCurve[itEvent->Param.CC.Value]);  
                 }  
             } else if (itEvent->Type == Event::type_pitchbend) { // if pitch bend event  
                 processPitchEvent(itEvent);  
             }  
349          }          }
350      }      }
351    
352      void Voice::processPitchEvent(RTList<Event>::Iterator& itEvent) {      void Voice::CalculateFadeOutCoeff(float FadeOutTime, float SampleRate) {
353          PitchBend = RTMath::CentsToFreqRatio(itEvent->Param.Pitch.Pitch * PitchBendRange);          SignalRack.CalculateFadeOutCoeff(FadeOutTime, SampleRate);
354      }      }
355    
356      void Voice::processCutoffEvent(RTList<Event>::Iterator& itEvent) {      int Voice::CalculatePan(uint8_t pan) {
357          /*int ccvalue = itEvent->Param.CC.Value;          int p = pan + RgnInfo.Pan;
         if (VCFCutoffCtrl.value == ccvalue) return;  
         VCFCutoffCtrl.value == ccvalue;  
         if (pRegion->VCFCutoffControllerInvert)  ccvalue = 127 - ccvalue;  
         if (ccvalue < pRegion->VCFVelocityScale) ccvalue = pRegion->VCFVelocityScale;  
         float cutoff = CutoffBase * float(ccvalue);  
         if (cutoff > 127.0f) cutoff = 127.0f;  
358    
359          VCFCutoffCtrl.fvalue = cutoff; // needed for initialization of fFinalCutoff next time          if (p < 0) return 0;
360          fFinalCutoff = cutoff;*/ // TODO: ^^^          if (p > 127) return 127;
361            return p;
362      }      }
363    
364      void Voice::processResonanceEvent(RTList<Event>::Iterator& itEvent) {      release_trigger_t Voice::GetReleaseTriggerFlags() {
365          // convert absolute controller value to differential          return release_trigger_none;
         const int ctrldelta = itEvent->Param.CC.Value - VCFResonanceCtrl.value;  
         VCFResonanceCtrl.value = itEvent->Param.CC.Value;  
         const float resonancedelta = (float) ctrldelta;  
         fFinalResonance += resonancedelta;  
         // needed for initialization of parameter  
         VCFResonanceCtrl.fvalue = itEvent->Param.CC.Value;  
     }  
   
     /**  
      *  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();  
             } else {  
                 killPos = RTMath::Min(itKillEvent->FragmentPos(), maxFadeOutPos);  
             }  
         }  
   
         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);  
             }  
             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;  
         }  
         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;  
366      }      }
367    
368  }} // namespace LinuxSampler::sf2  }} // namespace LinuxSampler::sf2

Legend:
Removed from v.2012  
changed lines
  Added in v.3444

  ViewVC Help
Powered by ViewVC