/[svn]/linuxsampler/trunk/src/engines/gig/Voice.cpp
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revision 1857 by schoenebeck, Sat Mar 7 19:23:10 2009 UTC revision 3017 by schoenebeck, Wed Oct 19 12:28:40 2016 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 - 2015 Christian Schoenebeck and Grigor Iliev      *
8   *                                                                         *   *                                                                         *
9   *   This program is free software; you can redistribute it and/or modify  *   *   This program is free software; you can redistribute it and/or modify  *
10   *   it under the terms of the GNU General Public License as published by  *   *   it under the terms of the GNU General Public License as published by  *
# Line 24  Line 25 
25  #include "../../common/Features.h"  #include "../../common/Features.h"
26  #include "Synthesizer.h"  #include "Synthesizer.h"
27  #include "Profiler.h"  #include "Profiler.h"
28    #include "Engine.h"
29    #include "EngineChannel.h"
30    
31  #include "Voice.h"  #include "Voice.h"
32    
33  namespace LinuxSampler { namespace gig {  namespace LinuxSampler { namespace gig {
34    
35      Voice::Voice() {      Voice::Voice() {
36          pEngine     = NULL;          pEngine = NULL;
37          pDiskThread = NULL;          pEG1 = &EG1;
38          PlaybackState = playback_state_end;          pEG2 = &EG2;
         pLFO1 = new LFOUnsigned(1.0f);  // amplitude EG (0..1 range)  
         pLFO2 = new LFOUnsigned(1.0f);  // filter EG (0..1 range)  
         pLFO3 = new LFOSigned(1200.0f); // pitch EG (-1200..+1200 range)  
         KeyGroup = 0;  
         SynthesisMode = 0; // set all mode bits to 0 first  
         // select synthesis implementation (asm core is not supported ATM)  
         #if 0 // CONFIG_ASM && ARCH_X86  
         SYNTHESIS_MODE_SET_IMPLEMENTATION(SynthesisMode, Features::supportsMMX() && Features::supportsSSE());  
         #else  
         SYNTHESIS_MODE_SET_IMPLEMENTATION(SynthesisMode, false);  
         #endif  
         SYNTHESIS_MODE_SET_PROFILING(SynthesisMode, Profiler::isEnabled());  
   
         finalSynthesisParameters.filterLeft.Reset();  
         finalSynthesisParameters.filterRight.Reset();  
39      }      }
40    
41      Voice::~Voice() {      Voice::~Voice() {
         if (pLFO1) delete pLFO1;  
         if (pLFO2) delete pLFO2;  
         if (pLFO3) delete pLFO3;  
42      }      }
43    
44      void Voice::SetEngine(Engine* pEngine) {      EngineChannel* Voice::GetGigEngineChannel() {
45          this->pEngine     = pEngine;          return static_cast<EngineChannel*>(pEngineChannel);
         this->pDiskThread = pEngine->pDiskThread;  
         dmsg(6,("Voice::SetEngine()\n"));  
46      }      }
47    
48      /**      void Voice::SetEngine(LinuxSampler::Engine* pEngine) {
49       *  Initializes and triggers the voice, a disk stream will be launched if          Engine* engine = static_cast<Engine*>(pEngine);
50       *  needed.          this->pEngine     = engine;
51       *          this->pDiskThread = engine->pDiskThread;
52       *  @param pEngineChannel - engine channel on which this voice was ordered          dmsg(6,("Voice::SetEngine()\n"));
53       *  @param itNoteOnEvent  - event that caused triggering of this voice      }
      *  @param PitchBend      - MIDI detune factor (-8192 ... +8191)  
      *  @param pDimRgn        - points to the dimension region which provides sample wave(s) and articulation data  
      *  @param VoiceType      - type of this voice  
      *  @param iKeyGroup      - a value > 0 defines a key group in which this voice is member of  
      *  @returns 0 on success, a value < 0 if the voice wasn't triggered  
      *           (either due to an error or e.g. because no region is  
      *           defined for the given key)  
      */  
     int Voice::Trigger(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itNoteOnEvent, int PitchBend, ::gig::DimensionRegion* pDimRgn, type_t VoiceType, int iKeyGroup) {  
         this->pEngineChannel = pEngineChannel;  
         this->pDimRgn        = pDimRgn;  
         Orphan = false;  
   
         #if CONFIG_DEVMODE  
         if (itNoteOnEvent->FragmentPos() > pEngine->MaxSamplesPerCycle) { // just a sanity check for debugging  
             dmsg(1,("Voice::Trigger(): ERROR, TriggerDelay > Totalsamples\n"));  
         }  
         #endif // CONFIG_DEVMODE  
   
         Type            = VoiceType;  
         MIDIKey         = itNoteOnEvent->Param.Note.Key;  
         PlaybackState   = playback_state_init; // mark voice as triggered, but no audio rendered yet  
         Delay           = itNoteOnEvent->FragmentPos();  
         itTriggerEvent  = itNoteOnEvent;  
         itKillEvent     = Pool<Event>::Iterator();  
         KeyGroup        = iKeyGroup;  
         pSample         = pDimRgn->pSample; // sample won't change until the voice is finished  
   
         // calculate volume  
         const double velocityAttenuation = pDimRgn->GetVelocityAttenuation(itNoteOnEvent->Param.Note.Velocity);  
   
         // For 16 bit samples, we downscale by 32768 to convert from  
         // int16 value range to DSP value range (which is  
         // -1.0..1.0). For 24 bit, we downscale from int32.  
         float volume = velocityAttenuation / (pSample->BitDepth == 16 ? 32768.0f : 32768.0f * 65536.0f);  
   
         volume *= pDimRgn->SampleAttenuation * pEngineChannel->GlobalVolume * GLOBAL_VOLUME;  
   
         // the volume of release triggered samples depends on note length  
         if (Type == type_release_trigger) {  
             float noteLength = float(pEngine->FrameTime + Delay -  
                                      pEngineChannel->pMIDIKeyInfo[MIDIKey].NoteOnTime) / pEngine->SampleRate;  
             float attenuation = 1 - 0.01053 * (256 >> pDimRgn->ReleaseTriggerDecay) * noteLength;  
             if (attenuation <= 0) return -1;  
             volume *= attenuation;  
         }  
   
         // select channel mode (mono or stereo)  
         SYNTHESIS_MODE_SET_CHANNELS(SynthesisMode, pSample->Channels == 2);  
         // select bit depth (16 or 24)  
         SYNTHESIS_MODE_SET_BITDEPTH24(SynthesisMode, pSample->BitDepth == 24);  
   
         // get starting crossfade volume level  
         float crossfadeVolume;  
         switch (pDimRgn->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[pDimRgn->AttenuationController.controller_number])];  
                 break;  
             case ::gig::attenuation_ctrl_t::type_none: // no crossfade defined  
             default:  
                 crossfadeVolume = 1.0f;  
         }  
   
         VolumeLeft  = volume * Engine::PanCurve[64 - pDimRgn->Pan];  
         VolumeRight = volume * Engine::PanCurve[64 + pDimRgn->Pan];  
   
         float subfragmentRate = pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE;  
         CrossfadeSmoother.trigger(crossfadeVolume, subfragmentRate);  
         VolumeSmoother.trigger(pEngineChannel->MidiVolume, subfragmentRate);  
         PanLeftSmoother.trigger(pEngineChannel->GlobalPanLeft, subfragmentRate);  
         PanRightSmoother.trigger(pEngineChannel->GlobalPanRight, subfragmentRate);  
   
         finalSynthesisParameters.dPos = pDimRgn->SampleStartOffset; // offset where we should start playback of sample (0 - 2000 sample points)  
         Pos = pDimRgn->SampleStartOffset;  
   
         // Check if the sample needs disk streaming or is too short for that  
         long cachedsamples = pSample->GetCache().Size / pSample->FrameSize;  
         DiskVoice          = cachedsamples < pSample->SamplesTotal;  
   
         const DLS::sample_loop_t& loopinfo = pDimRgn->pSampleLoops[0];  
   
         if (DiskVoice) { // voice to be streamed from disk  
             MaxRAMPos = cachedsamples - (pEngine->MaxSamplesPerCycle << CONFIG_MAX_PITCH) / pSample->Channels; //TODO: this calculation is too pessimistic and may better be moved to Render() method, so it calculates MaxRAMPos dependent to the current demand of sample points to be rendered (e.g. in case of JACK)  
   
             // check if there's a loop defined which completely fits into the cached (RAM) part of the sample  
             RAMLoop = (pDimRgn->SampleLoops && (loopinfo.LoopStart + loopinfo.LoopLength) <= MaxRAMPos);  
   
             if (pDiskThread->OrderNewStream(&DiskStreamRef, pDimRgn, MaxRAMPos, !RAMLoop) < 0) {  
                 dmsg(1,("Disk stream order failed!\n"));  
                 KillImmediately();  
                 return -1;  
             }  
             dmsg(4,("Disk voice launched (cached samples: %d, total Samples: %d, MaxRAMPos: %d, RAMLooping: %s)\n", cachedsamples, pSample->SamplesTotal, MaxRAMPos, (RAMLoop) ? "yes" : "no"));  
         }  
         else { // RAM only voice  
             MaxRAMPos = cachedsamples;  
             RAMLoop = (pDimRgn->SampleLoops != 0);  
             dmsg(4,("RAM only voice launched (Looping: %s)\n", (RAMLoop) ? "yes" : "no"));  
         }  
         if (RAMLoop) {  
             loop.uiTotalCycles = pSample->LoopPlayCount;  
             loop.uiCyclesLeft  = pSample->LoopPlayCount;  
             loop.uiStart       = loopinfo.LoopStart;  
             loop.uiEnd         = loopinfo.LoopStart + loopinfo.LoopLength;  
             loop.uiSize        = loopinfo.LoopLength;  
         }  
   
         // calculate initial pitch value  
         {  
             double pitchbasecents = pDimRgn->FineTune + (int) pEngine->ScaleTuning[MIDIKey % 12];  
   
             // GSt behaviour: maximum transpose up is 40 semitones. If  
             // MIDI key is more than 40 semitones above unity note,  
             // the transpose is not done.  
             if (pDimRgn->PitchTrack && (MIDIKey - (int) pDimRgn->UnityNote) < 40) pitchbasecents += (MIDIKey - (int) pDimRgn->UnityNote) * 100;  
   
             this->PitchBase = RTMath::CentsToFreqRatio(pitchbasecents) * (double(pSample->SamplesPerSecond) / double(pEngine->SampleRate));  
             this->PitchBend = RTMath::CentsToFreqRatio(((double) PitchBend / 8192.0) * 200.0); // pitchbend wheel +-2 semitones = 200 cents  
         }  
   
         // the length of the decay and release curves are dependent on the velocity  
         const double velrelease = 1 / pDimRgn->GetVelocityRelease(itNoteOnEvent->Param.Note.Velocity);  
   
         // setup EG 1 (VCA EG)  
         {  
             // get current value of EG1 controller  
             double eg1controllervalue;  
             switch (pDimRgn->EG1Controller.type) {  
                 case ::gig::eg1_ctrl_t::type_none: // no controller defined  
                     eg1controllervalue = 0;  
                     break;  
                 case ::gig::eg1_ctrl_t::type_channelaftertouch:  
                     eg1controllervalue = pEngineChannel->ControllerTable[128];  
                     break;  
                 case ::gig::eg1_ctrl_t::type_velocity:  
                     eg1controllervalue = itNoteOnEvent->Param.Note.Velocity;  
                     break;  
                 case ::gig::eg1_ctrl_t::type_controlchange: // MIDI control change controller  
                     eg1controllervalue = pEngineChannel->ControllerTable[pDimRgn->EG1Controller.controller_number];  
                     break;  
             }  
             if (pDimRgn->EG1ControllerInvert) eg1controllervalue = 127 - eg1controllervalue;  
   
             // calculate influence of EG1 controller on EG1's parameters  
             // (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);  
         }  
   
 #ifdef CONFIG_INTERPOLATE_VOLUME  
         // setup initial volume in synthesis parameters  
 #ifdef CONFIG_PROCESS_MUTED_CHANNELS  
         if (pEngineChannel->GetMute()) {  
             finalSynthesisParameters.fFinalVolumeLeft  = 0;  
             finalSynthesisParameters.fFinalVolumeRight = 0;  
         }  
         else  
 #else  
         {  
             float finalVolume = pEngineChannel->MidiVolume * crossfadeVolume * EG1.getLevel();  
   
             finalSynthesisParameters.fFinalVolumeLeft  = finalVolume * VolumeLeft  * pEngineChannel->GlobalPanLeft;  
             finalSynthesisParameters.fFinalVolumeRight = finalVolume * VolumeRight * pEngineChannel->GlobalPanRight;  
         }  
 #endif  
 #endif  
   
         // setup EG 2 (VCF Cutoff EG)  
         {  
             // get current value of EG2 controller  
             double eg2controllervalue;  
             switch (pDimRgn->EG2Controller.type) {  
                 case ::gig::eg2_ctrl_t::type_none: // no controller defined  
                     eg2controllervalue = 0;  
                     break;  
                 case ::gig::eg2_ctrl_t::type_channelaftertouch:  
                     eg2controllervalue = pEngineChannel->ControllerTable[128];  
                     break;  
                 case ::gig::eg2_ctrl_t::type_velocity:  
                     eg2controllervalue = itNoteOnEvent->Param.Note.Velocity;  
                     break;  
                 case ::gig::eg2_ctrl_t::type_controlchange: // MIDI control change controller  
                     eg2controllervalue = pEngineChannel->ControllerTable[pDimRgn->EG2Controller.controller_number];  
                     break;  
             }  
             if (pDimRgn->EG2ControllerInvert) eg2controllervalue = 127 - eg2controllervalue;  
54    
55              // calculate influence of EG2 controller on EG2's parameters      Voice::SampleInfo Voice::GetSampleInfo() {
56              double eg2attack  = (pDimRgn->EG2ControllerAttackInfluence)  ? 1 + 0.00775 * (double) (1 << pDimRgn->EG2ControllerAttackInfluence)  * eg2controllervalue : 1.0;          SampleInfo si;
57              double eg2decay   = (pDimRgn->EG2ControllerDecayInfluence)   ? 1 + 0.00775 * (double) (1 << pDimRgn->EG2ControllerDecayInfluence)   * eg2controllervalue : 1.0;          si.SampleRate       = pSample->SamplesPerSecond;
58              double eg2release = (pDimRgn->EG2ControllerReleaseInfluence) ? 1 + 0.00775 * (double) (1 << pDimRgn->EG2ControllerReleaseInfluence) * eg2controllervalue : 1.0;          si.ChannelCount     = pSample->Channels;
59            si.FrameSize        = pSample->FrameSize;
60              EG2.trigger(pDimRgn->EG2PreAttack,          si.BitDepth         = pSample->BitDepth;
61                          pDimRgn->EG2Attack * eg2attack,          si.TotalFrameCount  = pSample->SamplesTotal;
                         false,  
                         pDimRgn->EG2Decay1 * eg2decay * velrelease,  
                         pDimRgn->EG2Decay2 * eg2decay * velrelease,  
                         pDimRgn->EG2InfiniteSustain,  
                         pDimRgn->EG2Sustain,  
                         pDimRgn->EG2Release * eg2release * velrelease,  
                         velocityAttenuation,  
                         pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);  
         }  
   
   
         // setup EG 3 (VCO EG)  
         {  
             // if portamento mode is on, we dedicate EG3 purely for portamento, otherwise if portamento is off we do as told by the patch  
             bool  bPortamento = pEngineChannel->PortamentoMode && pEngineChannel->PortamentoPos >= 0.0f;  
             float eg3depth = (bPortamento)  
                                  ? RTMath::CentsToFreqRatio((pEngineChannel->PortamentoPos - (float) MIDIKey) * 100)  
                                  : RTMath::CentsToFreqRatio(pDimRgn->EG3Depth);  
             float eg3time = (bPortamento)  
                                 ? pEngineChannel->PortamentoTime  
                                 : pDimRgn->EG3Attack;  
             EG3.trigger(eg3depth, eg3time, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);  
             dmsg(5,("PortamentoPos=%f, depth=%f, time=%f\n", pEngineChannel->PortamentoPos, eg3depth, eg3time));  
         }  
   
   
         // setup LFO 1 (VCA LFO)  
         {  
             uint16_t lfo1_internal_depth;  
             switch (pDimRgn->LFO1Controller) {  
                 case ::gig::lfo1_ctrl_internal:  
                     lfo1_internal_depth  = pDimRgn->LFO1InternalDepth;  
                     pLFO1->ExtController = 0; // no external controller  
                     bLFO1Enabled         = (lfo1_internal_depth > 0);  
                     break;  
                 case ::gig::lfo1_ctrl_modwheel:  
                     lfo1_internal_depth  = 0;  
                     pLFO1->ExtController = 1; // MIDI controller 1  
                     bLFO1Enabled         = (pDimRgn->LFO1ControlDepth > 0);  
                     break;  
                 case ::gig::lfo1_ctrl_breath:  
                     lfo1_internal_depth  = 0;  
                     pLFO1->ExtController = 2; // MIDI controller 2  
                     bLFO1Enabled         = (pDimRgn->LFO1ControlDepth > 0);  
                     break;  
                 case ::gig::lfo1_ctrl_internal_modwheel:  
                     lfo1_internal_depth  = pDimRgn->LFO1InternalDepth;  
                     pLFO1->ExtController = 1; // MIDI controller 1  
                     bLFO1Enabled         = (lfo1_internal_depth > 0 || pDimRgn->LFO1ControlDepth > 0);  
                     break;  
                 case ::gig::lfo1_ctrl_internal_breath:  
                     lfo1_internal_depth  = pDimRgn->LFO1InternalDepth;  
                     pLFO1->ExtController = 2; // MIDI controller 2  
                     bLFO1Enabled         = (lfo1_internal_depth > 0 || pDimRgn->LFO1ControlDepth > 0);  
                     break;  
                 default:  
                     lfo1_internal_depth  = 0;  
                     pLFO1->ExtController = 0; // no external controller  
                     bLFO1Enabled         = false;  
             }  
             if (bLFO1Enabled) {  
                 pLFO1->trigger(pDimRgn->LFO1Frequency,  
                                start_level_min,  
                                lfo1_internal_depth,  
                                pDimRgn->LFO1ControlDepth,  
                                pDimRgn->LFO1FlipPhase,  
                                pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);  
                 pLFO1->update(pLFO1->ExtController ? pEngineChannel->ControllerTable[pLFO1->ExtController] : 0);  
             }  
         }  
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          // setup LFO 2 (VCF Cutoff LFO)          return si;
70          {      }
             uint16_t lfo2_internal_depth;  
             switch (pDimRgn->LFO2Controller) {  
                 case ::gig::lfo2_ctrl_internal:  
                     lfo2_internal_depth  = pDimRgn->LFO2InternalDepth;  
                     pLFO2->ExtController = 0; // no external controller  
                     bLFO2Enabled         = (lfo2_internal_depth > 0);  
                     break;  
                 case ::gig::lfo2_ctrl_modwheel:  
                     lfo2_internal_depth  = 0;  
                     pLFO2->ExtController = 1; // MIDI controller 1  
                     bLFO2Enabled         = (pDimRgn->LFO2ControlDepth > 0);  
                     break;  
                 case ::gig::lfo2_ctrl_foot:  
                     lfo2_internal_depth  = 0;  
                     pLFO2->ExtController = 4; // MIDI controller 4  
                     bLFO2Enabled         = (pDimRgn->LFO2ControlDepth > 0);  
                     break;  
                 case ::gig::lfo2_ctrl_internal_modwheel:  
                     lfo2_internal_depth  = pDimRgn->LFO2InternalDepth;  
                     pLFO2->ExtController = 1; // MIDI controller 1  
                     bLFO2Enabled         = (lfo2_internal_depth > 0 || pDimRgn->LFO2ControlDepth > 0);  
                     break;  
                 case ::gig::lfo2_ctrl_internal_foot:  
                     lfo2_internal_depth  = pDimRgn->LFO2InternalDepth;  
                     pLFO2->ExtController = 4; // MIDI controller 4  
                     bLFO2Enabled         = (lfo2_internal_depth > 0 || pDimRgn->LFO2ControlDepth > 0);  
                     break;  
                 default:  
                     lfo2_internal_depth  = 0;  
                     pLFO2->ExtController = 0; // no external controller  
                     bLFO2Enabled         = false;  
             }  
             if (bLFO2Enabled) {  
                 pLFO2->trigger(pDimRgn->LFO2Frequency,  
                                start_level_max,  
                                lfo2_internal_depth,  
                                pDimRgn->LFO2ControlDepth,  
                                pDimRgn->LFO2FlipPhase,  
                                pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);  
                 pLFO2->update(pLFO2->ExtController ? pEngineChannel->ControllerTable[pLFO2->ExtController] : 0);  
             }  
         }  
71    
72        Voice::RegionInfo Voice::GetRegionInfo() {
73            RegionInfo ri;
74            ri.UnityNote = pRegion->UnityNote;
75            ri.FineTune  = pRegion->FineTune;
76            ri.Pan       = pRegion->Pan;
77            ri.SampleStartOffset = pRegion->SampleStartOffset;
78    
79          // setup LFO 3 (VCO LFO)          ri.EG2PreAttack        = pRegion->EG2PreAttack;
80          {          ri.EG2Attack           = pRegion->EG2Attack;
81              uint16_t lfo3_internal_depth;          ri.EG2Decay1           = pRegion->EG2Decay1;
82              switch (pDimRgn->LFO3Controller) {          ri.EG2Decay2           = pRegion->EG2Decay2;
83                  case ::gig::lfo3_ctrl_internal:          ri.EG2Sustain          = pRegion->EG2Sustain;
84                      lfo3_internal_depth  = pDimRgn->LFO3InternalDepth;          ri.EG2InfiniteSustain  = pRegion->EG2InfiniteSustain;
85                      pLFO3->ExtController = 0; // no external controller          ri.EG2Release          = pRegion->EG2Release;
                     bLFO3Enabled         = (lfo3_internal_depth > 0);  
                     break;  
                 case ::gig::lfo3_ctrl_modwheel:  
                     lfo3_internal_depth  = 0;  
                     pLFO3->ExtController = 1; // MIDI controller 1  
                     bLFO3Enabled         = (pDimRgn->LFO3ControlDepth > 0);  
                     break;  
                 case ::gig::lfo3_ctrl_aftertouch:  
                     lfo3_internal_depth  = 0;  
                     pLFO3->ExtController = 128;  
                     bLFO3Enabled         = true;  
                     break;  
                 case ::gig::lfo3_ctrl_internal_modwheel:  
                     lfo3_internal_depth  = pDimRgn->LFO3InternalDepth;  
                     pLFO3->ExtController = 1; // MIDI controller 1  
                     bLFO3Enabled         = (lfo3_internal_depth > 0 || pDimRgn->LFO3ControlDepth > 0);  
                     break;  
                 case ::gig::lfo3_ctrl_internal_aftertouch:  
                     lfo3_internal_depth  = pDimRgn->LFO3InternalDepth;  
                     pLFO1->ExtController = 128;  
                     bLFO3Enabled         = (lfo3_internal_depth > 0 || pDimRgn->LFO3ControlDepth > 0);  
                     break;  
                 default:  
                     lfo3_internal_depth  = 0;  
                     pLFO3->ExtController = 0; // no external controller  
                     bLFO3Enabled         = false;  
             }  
             if (bLFO3Enabled) {  
                 pLFO3->trigger(pDimRgn->LFO3Frequency,  
                                start_level_mid,  
                                lfo3_internal_depth,  
                                pDimRgn->LFO3ControlDepth,  
                                false,  
                                pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);  
                 pLFO3->update(pLFO3->ExtController ? pEngineChannel->ControllerTable[pLFO3->ExtController] : 0);  
             }  
         }  
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          #if CONFIG_FORCE_FILTER          ri.ReleaseTriggerDecay = 0.01053 * (256 >> pRegion->ReleaseTriggerDecay);
         const bool bUseFilter = true;  
         #else // use filter only if instrument file told so  
         const bool bUseFilter = pDimRgn->VCFEnabled;  
         #endif // CONFIG_FORCE_FILTER  
         SYNTHESIS_MODE_SET_FILTER(SynthesisMode, bUseFilter);  
         if (bUseFilter) {  
             #ifdef CONFIG_OVERRIDE_CUTOFF_CTRL  
             VCFCutoffCtrl.controller = CONFIG_OVERRIDE_CUTOFF_CTRL;  
             #else // use the one defined in the instrument file  
             switch (pDimRgn->VCFCutoffController) {  
                 case ::gig::vcf_cutoff_ctrl_modwheel:  
                     VCFCutoffCtrl.controller = 1;  
                     break;  
                 case ::gig::vcf_cutoff_ctrl_effect1:  
                     VCFCutoffCtrl.controller = 12;  
                     break;  
                 case ::gig::vcf_cutoff_ctrl_effect2:  
                     VCFCutoffCtrl.controller = 13;  
                     break;  
                 case ::gig::vcf_cutoff_ctrl_breath:  
                     VCFCutoffCtrl.controller = 2;  
                     break;  
                 case ::gig::vcf_cutoff_ctrl_foot:  
                     VCFCutoffCtrl.controller = 4;  
                     break;  
                 case ::gig::vcf_cutoff_ctrl_sustainpedal:  
                     VCFCutoffCtrl.controller = 64;  
                     break;  
                 case ::gig::vcf_cutoff_ctrl_softpedal:  
                     VCFCutoffCtrl.controller = 67;  
                     break;  
                 case ::gig::vcf_cutoff_ctrl_genpurpose7:  
                     VCFCutoffCtrl.controller = 82;  
                     break;  
                 case ::gig::vcf_cutoff_ctrl_genpurpose8:  
                     VCFCutoffCtrl.controller = 83;  
                     break;  
                 case ::gig::vcf_cutoff_ctrl_aftertouch:  
                     VCFCutoffCtrl.controller = 128;  
                     break;  
                 case ::gig::vcf_cutoff_ctrl_none:  
                 default:  
                     VCFCutoffCtrl.controller = 0;  
                     break;  
             }  
             #endif // CONFIG_OVERRIDE_CUTOFF_CTRL  
94    
95              #ifdef CONFIG_OVERRIDE_RESONANCE_CTRL          return ri;
96              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  
97    
98              #ifndef CONFIG_OVERRIDE_FILTER_TYPE      Voice::InstrumentInfo Voice::GetInstrumentInfo() {
99              finalSynthesisParameters.filterLeft.SetType(pDimRgn->VCFType);          InstrumentInfo ii;
100              finalSynthesisParameters.filterRight.SetType(pDimRgn->VCFType);          ii.FineTune = GetGigEngineChannel()->pInstrument->FineTune;
101              #else // override filter type          ii.PitchbendRange = GetGigEngineChannel()->pInstrument->PitchbendRange;
             finalSynthesisParameters.filterLeft.SetType(CONFIG_OVERRIDE_FILTER_TYPE);  
             finalSynthesisParameters.filterRight.SetType(CONFIG_OVERRIDE_FILTER_TYPE);  
             #endif // CONFIG_OVERRIDE_FILTER_TYPE  
   
             VCFCutoffCtrl.value    = pEngineChannel->ControllerTable[VCFCutoffCtrl.controller];  
             VCFResonanceCtrl.value = pEngineChannel->ControllerTable[VCFResonanceCtrl.controller];  
   
             // calculate cutoff frequency  
             float cutoff = pDimRgn->GetVelocityCutoff(itNoteOnEvent->Param.Note.Velocity);  
             if (pDimRgn->VCFKeyboardTracking) {  
                 cutoff *= exp((itNoteOnEvent->Param.Note.Key - pDimRgn->VCFKeyboardTrackingBreakpoint) * 0.057762265f); // (ln(2) / 12)  
             }  
             CutoffBase = cutoff;  
102    
103              int cvalue;          return ii;
104              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);  
             if (cutoff > 127.0f) cutoff = 127.0f;  
105    
106              // calculate resonance      double Voice::GetSampleAttenuation() {
107              float resonance = (float) (VCFResonanceCtrl.controller ? VCFResonanceCtrl.value : pDimRgn->VCFResonance);          return pRegion->SampleAttenuation;
108        }
109    
110              VCFCutoffCtrl.fvalue    = cutoff;      double Voice::GetVelocityAttenuation(uint8_t MIDIKeyVelocity) {
111              VCFResonanceCtrl.fvalue = resonance;          return pRegion->GetVelocityAttenuation(MIDIKeyVelocity);
112          }      }
         else {  
             VCFCutoffCtrl.controller    = 0;  
             VCFResonanceCtrl.controller = 0;  
         }  
113    
114          return 0; // success      double Voice::GetVelocityRelease(uint8_t MIDIKeyVelocity) {
115            return pRegion->GetVelocityRelease(MIDIKeyVelocity);
116      }      }
117    
118      /**      void Voice::ProcessCCEvent(RTList<Event>::Iterator& itEvent) {
119       *  Renders the audio data for this voice for the current audio fragment.          if (itEvent->Type == Event::type_control_change && itEvent->Param.CC.Controller) { // if (valid) MIDI control change event
120       *  The sample input data can either come from RAM (cached sample or sample              if (pRegion->AttenuationController.type == ::gig::attenuation_ctrl_t::type_controlchange &&
121       *  part) or directly from disk. The output signal will be rendered by                  itEvent->Param.CC.Controller == pRegion->AttenuationController.controller_number) {
122       *  resampling / interpolation. If this voice is a disk streaming voice and                  CrossfadeSmoother.update(AbstractEngine::CrossfadeCurve[CrossfadeAttenuation(itEvent->Param.CC.Value)]);
      *  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);  
   
                     if (DiskVoice) {  
                         // check if we reached the allowed limit of the sample RAM cache  
                         if (finalSynthesisParameters.dPos > MaxRAMPos) {  
                             dmsg(5,("Voice: switching to disk playback (Pos=%f)\n", finalSynthesisParameters.dPos));  
                             this->PlaybackState = playback_state_disk;  
                         }  
                     } else if (finalSynthesisParameters.dPos >= pSample->GetCache().Size / pSample->FrameSize) {  
                         this->PlaybackState = playback_state_end;  
                     }  
                 }  
                 break;  
   
             case playback_state_disk: {  
                     if (!DiskStreamRef.pStream) {  
                         // check if the disk thread created our ordered disk stream in the meantime  
                         DiskStreamRef.pStream = pDiskThread->AskForCreatedStream(DiskStreamRef.OrderID);  
                         if (!DiskStreamRef.pStream) {  
                             std::cout << stderr << "Disk stream not available in time!" << std::endl << std::flush;  
                             KillImmediately();  
                             return;  
                         }  
                         DiskStreamRef.pStream->IncrementReadPos(pSample->Channels * (int(finalSynthesisParameters.dPos) - MaxRAMPos));  
                         finalSynthesisParameters.dPos -= int(finalSynthesisParameters.dPos);  
                         RealSampleWordsLeftToRead = -1; // -1 means no silence has been added yet  
                     }  
   
                     const int sampleWordsLeftToRead = DiskStreamRef.pStream->GetReadSpace();  
   
                     // add silence sample at the end if we reached the end of the stream (for the interpolator)  
                     if (DiskStreamRef.State == Stream::state_end) {  
                         const int maxSampleWordsPerCycle = (pEngine->MaxSamplesPerCycle << CONFIG_MAX_PITCH) * pSample->Channels + 6; // +6 for the interpolator algorithm  
                         if (sampleWordsLeftToRead <= maxSampleWordsPerCycle) {  
                             // remember how many sample words there are before any silence has been added  
                             if (RealSampleWordsLeftToRead < 0) RealSampleWordsLeftToRead = sampleWordsLeftToRead;  
                             DiskStreamRef.pStream->WriteSilence(maxSampleWordsPerCycle - sampleWordsLeftToRead);  
                         }  
                     }  
   
                     sample_t* ptr = (sample_t*)DiskStreamRef.pStream->GetReadPtr(); // get the current read_ptr within the ringbuffer where we read the samples from  
   
                     // render current audio fragment  
                     Synthesize(Samples, ptr, Delay);  
   
                     const int iPos = (int) finalSynthesisParameters.dPos;  
                     const int readSampleWords = iPos * pSample->Channels; // amount of sample words actually been read  
                     DiskStreamRef.pStream->IncrementReadPos(readSampleWords);  
                     finalSynthesisParameters.dPos -= iPos; // just keep fractional part of playback position  
   
                     // change state of voice to 'end' if we really reached the end of the sample data  
                     if (RealSampleWordsLeftToRead >= 0) {  
                         RealSampleWordsLeftToRead -= readSampleWords;  
                         if (RealSampleWordsLeftToRead <= 0) this->PlaybackState = playback_state_end;  
                     }  
                 }  
                 break;  
   
             case playback_state_end:  
                 std::cerr << "gig::Voice::Render(): entered with playback_state_end, this is a bug!\n" << std::flush;  
                 break;  
         }  
   
         // Reset delay  
         Delay = 0;  
   
         itTriggerEvent = Pool<Event>::Iterator();  
   
         // If sample stream or release stage finished, kill the voice  
         if (PlaybackState == playback_state_end || EG1.getSegmentType() == EGADSR::segment_end) KillImmediately();  
     }  
   
     /**  
      *  Resets voice variables. Should only be called if rendering process is  
      *  suspended / not running.  
      */  
     void Voice::Reset() {  
         finalSynthesisParameters.filterLeft.Reset();  
         finalSynthesisParameters.filterRight.Reset();  
         DiskStreamRef.pStream = NULL;  
         DiskStreamRef.hStream = 0;  
         DiskStreamRef.State   = Stream::state_unused;  
         DiskStreamRef.OrderID = 0;  
         PlaybackState = playback_state_end;  
         itTriggerEvent = Pool<Event>::Iterator();  
         itKillEvent    = Pool<Event>::Iterator();  
     }  
   
     /**  
      * Process given list of MIDI note on, note off and sustain pedal events  
      * for the given time.  
      *  
      * @param itEvent - iterator pointing to the next event to be processed  
      * @param End     - youngest time stamp where processing should be stopped  
      */  
     void Voice::processTransitionEvents(RTList<Event>::Iterator& itEvent, uint End) {  
         for (; itEvent && itEvent->FragmentPos() <= End; ++itEvent) {  
             if (itEvent->Type == Event::type_release) {  
                 EG1.update(EGADSR::event_release, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);  
                 EG2.update(EGADSR::event_release, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);  
             } else if (itEvent->Type == Event::type_cancel_release) {  
                 EG1.update(EGADSR::event_cancel_release, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);  
                 EG2.update(EGADSR::event_cancel_release, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);  
123              }              }
124          }          }
125      }      }
126    
127      /**      void Voice::ProcessChannelPressureEvent(RTList<Event>::Iterator& itEvent) {
128       * Process given list of MIDI control change and pitch bend events for          if (itEvent->Type == Event::type_channel_pressure) { // if (valid) MIDI channel pressure (aftertouch) event
129       * the given time.              if (pRegion->AttenuationController.type == ::gig::attenuation_ctrl_t::type_channelaftertouch) {
130       *                  CrossfadeSmoother.update(AbstractEngine::CrossfadeCurve[CrossfadeAttenuation(itEvent->Param.ChannelPressure.Value)]);
      * @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) {  
                     CrossfadeSmoother.update(Engine::CrossfadeCurve[CrossfadeAttenuation(itEvent->Param.CC.Value)]);  
                 }  
                 if (itEvent->Param.CC.Controller == 7) { // volume  
                     VolumeSmoother.update(Engine::VolumeCurve[itEvent->Param.CC.Value]);  
                 } else if (itEvent->Param.CC.Controller == 10) { // panpot  
                     PanLeftSmoother.update(Engine::PanCurve[128 - itEvent->Param.CC.Value]);  
                     PanRightSmoother.update(Engine::PanCurve[itEvent->Param.CC.Value]);  
                 }  
             } else if (itEvent->Type == Event::type_pitchbend) { // if pitch bend event  
                 processPitchEvent(itEvent);  
131              }              }
132          }          }
133      }      }
134    
135      void Voice::processPitchEvent(RTList<Event>::Iterator& itEvent) {      void Voice::ProcessPolyphonicKeyPressureEvent(RTList<Event>::Iterator& itEvent) {
136          const float pitch = RTMath::CentsToFreqRatio(((double) itEvent->Param.Pitch.Pitch / 8192.0) * 200.0); // +-two semitones = +-200 cents          // Not used so far
         finalSynthesisParameters.fFinalPitch *= pitch;  
         PitchBend = pitch;  
137      }      }
138    
139      void Voice::processCutoffEvent(RTList<Event>::Iterator& itEvent) {      void Voice::ProcessCutoffEvent(RTList<Event>::Iterator& itEvent) {
140          int ccvalue = itEvent->Param.CC.Value;          int ccvalue = itEvent->Param.CC.Value;
141          if (VCFCutoffCtrl.value == ccvalue) return;          if (VCFCutoffCtrl.value == ccvalue) return;
142          VCFCutoffCtrl.value == ccvalue;          VCFCutoffCtrl.value = ccvalue;
143          if (pDimRgn->VCFCutoffControllerInvert)  ccvalue = 127 - ccvalue;          if (pRegion->VCFCutoffControllerInvert)  ccvalue = 127 - ccvalue;
144          if (ccvalue < pDimRgn->VCFVelocityScale) ccvalue = pDimRgn->VCFVelocityScale;          if (ccvalue < pRegion->VCFVelocityScale) ccvalue = pRegion->VCFVelocityScale;
145          float cutoff = CutoffBase * float(ccvalue);          float cutoff = CutoffBase * float(ccvalue);
146          if (cutoff > 127.0f) cutoff = 127.0f;          if (cutoff > 127.0f) cutoff = 127.0f;
147    
# Line 755  namespace LinuxSampler { namespace gig { Line 149  namespace LinuxSampler { namespace gig {
149          fFinalCutoff = cutoff;          fFinalCutoff = cutoff;
150      }      }
151    
152      void Voice::processResonanceEvent(RTList<Event>::Iterator& itEvent) {      double Voice::CalculateCrossfadeVolume(uint8_t MIDIKeyVelocity) {
153          // convert absolute controller value to differential          float crossfadeVolume;
154          const int ctrldelta = itEvent->Param.CC.Value - VCFResonanceCtrl.value;          switch (pRegion->AttenuationController.type) {
155          VCFResonanceCtrl.value = itEvent->Param.CC.Value;              case ::gig::attenuation_ctrl_t::type_channelaftertouch:
156          const float resonancedelta = (float) ctrldelta;                  crossfadeVolume = Engine::CrossfadeCurve[CrossfadeAttenuation(GetGigEngineChannel()->ControllerTable[128])];
157          fFinalResonance += resonancedelta;                  break;
158          // needed for initialization of parameter              case ::gig::attenuation_ctrl_t::type_velocity:
159          VCFResonanceCtrl.fvalue = itEvent->Param.CC.Value;                  crossfadeVolume = Engine::CrossfadeCurve[CrossfadeAttenuation(MIDIKeyVelocity)];
160      }                  break;
161                case ::gig::attenuation_ctrl_t::type_controlchange: //FIXME: currently not sample accurate
162      /**                  crossfadeVolume = Engine::CrossfadeCurve[CrossfadeAttenuation(GetGigEngineChannel()->ControllerTable[pRegion->AttenuationController.controller_number])];
163       *  Synthesizes the current audio fragment for this voice.                  break;
164       *              case ::gig::attenuation_ctrl_t::type_none: // no crossfade defined
165       *  @param Samples - number of sample points to be rendered in this audio              default:
166       *                   fragment cycle                  crossfadeVolume = 1.0f;
      *  @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;  
                 }  
             }  
167          }          }
168    
169          uint killPos;          return crossfadeVolume;
170          if (itKillEvent) {      }
171              int maxFadeOutPos = Samples - pEngine->MinFadeOutSamples;  
172              if (maxFadeOutPos < 0) {      double Voice::GetEG1ControllerValue(uint8_t MIDIKeyVelocity) {
173                  // There's not enough space in buffer to do a fade out          double eg1controllervalue = 0;
174                  // from max volume (this can only happen for audio          switch (pRegion->EG1Controller.type) {
175                  // drivers that use Samples < MaxSamplesPerCycle).              case ::gig::eg1_ctrl_t::type_none: // no controller defined
176                  // End the EG1 here, at pos 0, with a shorter max fade                  eg1controllervalue = 0;
177                  // out time.                  break;
178                  EG1.enterFadeOutStage(Samples / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);              case ::gig::eg1_ctrl_t::type_channelaftertouch:
179                  itKillEvent = Pool<Event>::Iterator();                  eg1controllervalue = GetGigEngineChannel()->ControllerTable[128];
180              } else {                  break;
181                  killPos = RTMath::Min(itKillEvent->FragmentPos(), maxFadeOutPos);              case ::gig::eg1_ctrl_t::type_velocity:
182              }                  eg1controllervalue = MIDIKeyVelocity;
183                    break;
184                case ::gig::eg1_ctrl_t::type_controlchange: // MIDI control change controller
185                    eg1controllervalue = GetGigEngineChannel()->ControllerTable[pRegion->EG1Controller.controller_number];
186                    break;
187          }          }
188            if (pRegion->EG1ControllerInvert) eg1controllervalue = 127 - eg1controllervalue;
189    
190          uint i = Skip;          return eg1controllervalue;
191          while (i < Samples) {      }
             int iSubFragmentEnd = RTMath::Min(i + CONFIG_DEFAULT_SUBFRAGMENT_SIZE, Samples);  
   
             // initialize all final synthesis parameters  
             finalSynthesisParameters.fFinalPitch = PitchBase * PitchBend;  
             fFinalCutoff    = VCFCutoffCtrl.fvalue;  
             fFinalResonance = VCFResonanceCtrl.fvalue;  
   
             // process MIDI control change and pitchbend events for this subfragment  
             processCCEvents(itCCEvent, iSubFragmentEnd);  
   
             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();  
             }  
192    
193              // process envelope generators      Voice::EGInfo Voice::CalculateEG1ControllerInfluence(double eg1ControllerValue) {
194              switch (EG1.getSegmentType()) {          EGInfo eg;
195                  case EGADSR::segment_lin:          // (eg1attack is different from the others)
196                      fFinalVolume *= EG1.processLin();          if (pRegion->EG1Attack < 1e-8 && // attack in gig == 0
197                      break;              (pRegion->EG1ControllerAttackInfluence == 0 ||
198                  case EGADSR::segment_exp:               eg1ControllerValue <= 10)) { // strange GSt special case
199                      fFinalVolume *= EG1.processExp();              eg.Attack = 0; // this will force the attack to be 0 in the call to EG1.trigger
200                      break;          } else {
201                  case EGADSR::segment_end:              eg.Attack  = (pRegion->EG1ControllerAttackInfluence)  ?
202                      fFinalVolume *= EG1.getLevel();                  1 + 0.031 * (double) (pRegion->EG1ControllerAttackInfluence == 1 ?
203                      break; // noop                                        1 : 1 << pRegion->EG1ControllerAttackInfluence) * eg1ControllerValue : 1.0;
204              }          }
205              switch (EG2.getSegmentType()) {          eg.Decay   = (pRegion->EG1ControllerDecayInfluence)   ? 1 + 0.00775 * (double) (1 << pRegion->EG1ControllerDecayInfluence)   * eg1ControllerValue : 1.0;
206                  case EGADSR::segment_lin:          eg.Release = (pRegion->EG1ControllerReleaseInfluence) ? 1 + 0.00775 * (double) (1 << pRegion->EG1ControllerReleaseInfluence) * eg1ControllerValue : 1.0;
207                      fFinalCutoff *= EG2.processLin();  
208                      break;          return eg;
209                  case EGADSR::segment_exp:      }
210                      fFinalCutoff *= EG2.processExp();  
211                      break;      double Voice::GetEG2ControllerValue(uint8_t MIDIKeyVelocity) {
212                  case EGADSR::segment_end:          double eg2controllervalue = 0;
213                      fFinalCutoff *= EG2.getLevel();          switch (pRegion->EG2Controller.type) {
214                      break; // noop              case ::gig::eg2_ctrl_t::type_none: // no controller defined
215              }                  eg2controllervalue = 0;
216              if (EG3.active()) finalSynthesisParameters.fFinalPitch *= EG3.render();                  break;
217                case ::gig::eg2_ctrl_t::type_channelaftertouch:
218                    eg2controllervalue = GetGigEngineChannel()->ControllerTable[128];
219                    break;
220                case ::gig::eg2_ctrl_t::type_velocity:
221                    eg2controllervalue = MIDIKeyVelocity;
222                    break;
223                case ::gig::eg2_ctrl_t::type_controlchange: // MIDI control change controller
224                    eg2controllervalue = GetGigEngineChannel()->ControllerTable[pRegion->EG2Controller.controller_number];
225                    break;
226            }
227            if (pRegion->EG2ControllerInvert) eg2controllervalue = 127 - eg2controllervalue;
228    
229              // process low frequency oscillators          return eg2controllervalue;
230              if (bLFO1Enabled) fFinalVolume *= (1.0f - pLFO1->render());      }
             if (bLFO2Enabled) fFinalCutoff *= pLFO2->render();  
             if (bLFO3Enabled) finalSynthesisParameters.fFinalPitch *= RTMath::CentsToFreqRatio(pLFO3->render());  
   
             // if filter enabled then update filter coefficients  
             if (SYNTHESIS_MODE_GET_FILTER(SynthesisMode)) {  
                 finalSynthesisParameters.filterLeft.SetParameters(fFinalCutoff, fFinalResonance, pEngine->SampleRate);  
                 finalSynthesisParameters.filterRight.SetParameters(fFinalCutoff, fFinalResonance, pEngine->SampleRate);  
             }  
231    
232              // do we need resampling?      Voice::EGInfo Voice::CalculateEG2ControllerInfluence(double eg2ControllerValue) {
233              const float __PLUS_ONE_CENT  = 1.000577789506554859250142541782224725466f;          EGInfo eg;
234              const float __MINUS_ONE_CENT = 0.9994225441413807496009516495583113737666f;          eg.Attack  = (pRegion->EG2ControllerAttackInfluence)  ? 1 + 0.00775 * (double) (1 << pRegion->EG2ControllerAttackInfluence)  * eg2ControllerValue : 1.0;
235              const bool bResamplingRequired = !(finalSynthesisParameters.fFinalPitch <= __PLUS_ONE_CENT &&          eg.Decay   = (pRegion->EG2ControllerDecayInfluence)   ? 1 + 0.00775 * (double) (1 << pRegion->EG2ControllerDecayInfluence)   * eg2ControllerValue : 1.0;
236                                                 finalSynthesisParameters.fFinalPitch >= __MINUS_ONE_CENT);          eg.Release = (pRegion->EG2ControllerReleaseInfluence) ? 1 + 0.00775 * (double) (1 << pRegion->EG2ControllerReleaseInfluence) * eg2ControllerValue : 1.0;
             SYNTHESIS_MODE_SET_INTERPOLATE(SynthesisMode, bResamplingRequired);  
   
             // prepare final synthesis parameters structure  
             finalSynthesisParameters.uiToGo            = iSubFragmentEnd - i;  
 #ifdef CONFIG_INTERPOLATE_VOLUME  
             finalSynthesisParameters.fFinalVolumeDeltaLeft  =  
                 (fFinalVolume * VolumeLeft  * PanLeftSmoother.render() -  
                  finalSynthesisParameters.fFinalVolumeLeft) / finalSynthesisParameters.uiToGo;  
             finalSynthesisParameters.fFinalVolumeDeltaRight =  
                 (fFinalVolume * VolumeRight * PanRightSmoother.render() -  
                  finalSynthesisParameters.fFinalVolumeRight) / finalSynthesisParameters.uiToGo;  
 #else  
             finalSynthesisParameters.fFinalVolumeLeft  =  
                 fFinalVolume * VolumeLeft  * PanLeftSmoother.render();  
             finalSynthesisParameters.fFinalVolumeRight =  
                 fFinalVolume * VolumeRight * PanRightSmoother.render();  
 #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 (pDimRgn->SampleLoops && Pos <= pDimRgn->pSampleLoops[0].LoopStart && pDimRgn->pSampleLoops[0].LoopStart < newPos) {  
                     EG1.update(EGADSR::event_hold_end, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);  
                 }  
237    
238                  EG1.increment(1);          return eg;
239                  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  
240    
241              Pos = newPos;      void Voice::InitLFO1() {
242              i = iSubFragmentEnd;          uint16_t lfo1_internal_depth;
243            switch (pRegion->LFO1Controller) {
244                case ::gig::lfo1_ctrl_internal:
245                    lfo1_internal_depth  = pRegion->LFO1InternalDepth;
246                    pLFO1->ExtController = 0; // no external controller
247                    bLFO1Enabled         = (lfo1_internal_depth > 0);
248                    break;
249                case ::gig::lfo1_ctrl_modwheel:
250                    lfo1_internal_depth  = 0;
251                    pLFO1->ExtController = 1; // MIDI controller 1
252                    bLFO1Enabled         = (pRegion->LFO1ControlDepth > 0);
253                    break;
254                case ::gig::lfo1_ctrl_breath:
255                    lfo1_internal_depth  = 0;
256                    pLFO1->ExtController = 2; // MIDI controller 2
257                    bLFO1Enabled         = (pRegion->LFO1ControlDepth > 0);
258                    break;
259                case ::gig::lfo1_ctrl_internal_modwheel:
260                    lfo1_internal_depth  = pRegion->LFO1InternalDepth;
261                    pLFO1->ExtController = 1; // MIDI controller 1
262                    bLFO1Enabled         = (lfo1_internal_depth > 0 || pRegion->LFO1ControlDepth > 0);
263                    break;
264                case ::gig::lfo1_ctrl_internal_breath:
265                    lfo1_internal_depth  = pRegion->LFO1InternalDepth;
266                    pLFO1->ExtController = 2; // MIDI controller 2
267                    bLFO1Enabled         = (lfo1_internal_depth > 0 || pRegion->LFO1ControlDepth > 0);
268                    break;
269                default:
270                    lfo1_internal_depth  = 0;
271                    pLFO1->ExtController = 0; // no external controller
272                    bLFO1Enabled         = false;
273            }
274            if (bLFO1Enabled) {
275                pLFO1->trigger(pRegion->LFO1Frequency,
276                               start_level_min,
277                               lfo1_internal_depth,
278                               pRegion->LFO1ControlDepth,
279                               pRegion->LFO1FlipPhase,
280                               pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
281                pLFO1->update(pLFO1->ExtController ? GetGigEngineChannel()->ControllerTable[pLFO1->ExtController] : 0);
282          }          }
283      }      }
284    
285      /** @brief Update current portamento position.      void Voice::InitLFO2() {
286       *          uint16_t lfo2_internal_depth;
287       * Will be called when portamento mode is enabled to get the final          switch (pRegion->LFO2Controller) {
288       * portamento position of this active voice from where the next voice(s)              case ::gig::lfo2_ctrl_internal:
289       * might continue to slide on.                  lfo2_internal_depth  = pRegion->LFO2InternalDepth;
290       *                  pLFO2->ExtController = 0; // no external controller
291       * @param itNoteOffEvent - event which causes this voice to die soon                  bLFO2Enabled         = (lfo2_internal_depth > 0);
292       */                  break;
293      void Voice::UpdatePortamentoPos(Pool<Event>::Iterator& itNoteOffEvent) {              case ::gig::lfo2_ctrl_modwheel:
294          const float fFinalEG3Level = EG3.level(itNoteOffEvent->FragmentPos());                  lfo2_internal_depth  = 0;
295          pEngineChannel->PortamentoPos = (float) MIDIKey + RTMath::FreqRatioToCents(fFinalEG3Level) * 0.01f;                  pLFO2->ExtController = 1; // MIDI controller 1
296      }                  bLFO2Enabled         = (pRegion->LFO2ControlDepth > 0);
297                    break;
298      /**              case ::gig::lfo2_ctrl_foot:
299       *  Immediately kill the voice. This method should not be used to kill                  lfo2_internal_depth  = 0;
300       *  a normal, active voice, because it doesn't take care of things like                  pLFO2->ExtController = 4; // MIDI controller 4
301       *  fading down the volume level to avoid clicks and regular processing                  bLFO2Enabled         = (pRegion->LFO2ControlDepth > 0);
302       *  until the kill event actually occured!                  break;
303       *              case ::gig::lfo2_ctrl_internal_modwheel:
304       * If it's necessary to know when the voice's disk stream was actually                  lfo2_internal_depth  = pRegion->LFO2InternalDepth;
305       * deleted, then one can set the optional @a bRequestNotification                  pLFO2->ExtController = 1; // MIDI controller 1
306       * parameter and this method will then return the handle of the disk                  bLFO2Enabled         = (lfo2_internal_depth > 0 || pRegion->LFO2ControlDepth > 0);
307       * stream (unique identifier) and one can use this handle to poll the                  break;
308       * disk thread if this stream has been deleted. In any case this method              case ::gig::lfo2_ctrl_internal_foot:
309       * will return immediately and will not block until the stream actually                  lfo2_internal_depth  = pRegion->LFO2InternalDepth;
310       * was deleted.                  pLFO2->ExtController = 4; // MIDI controller 4
311       *                  bLFO2Enabled         = (lfo2_internal_depth > 0 || pRegion->LFO2ControlDepth > 0);
312       * @param bRequestNotification - (optional) whether the disk thread shall                  break;
313       *                                provide a notification once it deleted              default:
314       *                               the respective disk stream                  lfo2_internal_depth  = 0;
315       *                               (default=false)                  pLFO2->ExtController = 0; // no external controller
316       * @returns handle to the voice's disk stream or @c Stream::INVALID_HANDLE                  bLFO2Enabled         = false;
317       *          if the voice did not use a disk stream at all          }
318       * @see Kill()          if (bLFO2Enabled) {
319       */              pLFO2->trigger(pRegion->LFO2Frequency,
320      Stream::Handle Voice::KillImmediately(bool bRequestNotification) {                             start_level_max,
321          Stream::Handle hStream = Stream::INVALID_HANDLE;                             lfo2_internal_depth,
322          if (DiskVoice && DiskStreamRef.State != Stream::state_unused) {                             pRegion->LFO2ControlDepth,
323              pDiskThread->OrderDeletionOfStream(&DiskStreamRef, bRequestNotification);                             pRegion->LFO2FlipPhase,
324              hStream = DiskStreamRef.hStream;                             pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
325          }              pLFO2->update(pLFO2->ExtController ? GetGigEngineChannel()->ControllerTable[pLFO2->ExtController] : 0);
326          Reset();          }
327          return hStream;      }
328      }  
329        void Voice::InitLFO3() {
330      /**          uint16_t lfo3_internal_depth;
331       *  Kill the voice in regular sense. Let the voice render audio until          switch (pRegion->LFO3Controller) {
332       *  the kill event actually occured and then fade down the volume level              case ::gig::lfo3_ctrl_internal:
333       *  very quickly and let the voice die finally. Unlike a normal release                  lfo3_internal_depth  = pRegion->LFO3InternalDepth;
334       *  of a voice, a kill process cannot be cancalled and is therefore                  pLFO3->ExtController = 0; // no external controller
335       *  usually used for voice stealing and key group conflicts.                  bLFO3Enabled         = (lfo3_internal_depth > 0);
336       *                  break;
337       *  @param itKillEvent - event which caused the voice to be killed              case ::gig::lfo3_ctrl_modwheel:
338       */                  lfo3_internal_depth  = 0;
339      void Voice::Kill(Pool<Event>::Iterator& itKillEvent) {                  pLFO3->ExtController = 1; // MIDI controller 1
340          #if CONFIG_DEVMODE                  bLFO3Enabled         = (pRegion->LFO3ControlDepth > 0);
341          if (!itKillEvent) dmsg(1,("gig::Voice::Kill(): ERROR, !itKillEvent !!!\n"));                  break;
342          if (itKillEvent && !itKillEvent.isValid()) dmsg(1,("gig::Voice::Kill(): ERROR, itKillEvent invalid !!!\n"));              case ::gig::lfo3_ctrl_aftertouch:
343          #endif // CONFIG_DEVMODE                  lfo3_internal_depth  = 0;
344                    pLFO3->ExtController = CTRL_TABLE_IDX_AFTERTOUCH;
345                    bLFO3Enabled         = true;
346                    break;
347                case ::gig::lfo3_ctrl_internal_modwheel:
348                    lfo3_internal_depth  = pRegion->LFO3InternalDepth;
349                    pLFO3->ExtController = 1; // MIDI controller 1
350                    bLFO3Enabled         = (lfo3_internal_depth > 0 || pRegion->LFO3ControlDepth > 0);
351                    break;
352                case ::gig::lfo3_ctrl_internal_aftertouch:
353                    lfo3_internal_depth  = pRegion->LFO3InternalDepth;
354                    pLFO3->ExtController = CTRL_TABLE_IDX_AFTERTOUCH;
355                    bLFO3Enabled         = (lfo3_internal_depth > 0 || pRegion->LFO3ControlDepth > 0);
356                    break;
357                default:
358                    lfo3_internal_depth  = 0;
359                    pLFO3->ExtController = 0; // no external controller
360                    bLFO3Enabled         = false;
361            }
362            if (bLFO3Enabled) {
363                pLFO3->trigger(pRegion->LFO3Frequency,
364                               start_level_mid,
365                               lfo3_internal_depth,
366                               pRegion->LFO3ControlDepth,
367                               false,
368                               pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
369                pLFO3->update(pLFO3->ExtController ? GetGigEngineChannel()->ControllerTable[pLFO3->ExtController] : 0);
370            }
371        }
372    
373        float Voice::CalculateCutoffBase(uint8_t MIDIKeyVelocity) {
374            float cutoff = pRegion->GetVelocityCutoff(MIDIKeyVelocity);
375            if (pRegion->VCFKeyboardTracking) {
376                cutoff *= RTMath::CentsToFreqRatioUnlimited((MIDIKey() - pRegion->VCFKeyboardTrackingBreakpoint) * 100);
377            }
378            return cutoff;
379        }
380    
381        float Voice::CalculateFinalCutoff(float cutoffBase) {
382            int cvalue;
383            if (VCFCutoffCtrl.controller) {
384                cvalue = GetGigEngineChannel()->ControllerTable[VCFCutoffCtrl.controller];
385                if (pRegion->VCFCutoffControllerInvert) cvalue = 127 - cvalue;
386                // VCFVelocityScale in this case means Minimum cutoff
387                if (cvalue < pRegion->VCFVelocityScale) cvalue = pRegion->VCFVelocityScale;
388            }
389            else {
390                cvalue = pRegion->VCFCutoff;
391            }
392            float fco = cutoffBase * float(cvalue);
393            if (fco > 127.0f) fco = 127.0f;
394    
395            return fco;
396        }
397    
398        uint8_t Voice::GetVCFCutoffCtrl() {
399            uint8_t ctrl;
400            switch (pRegion->VCFCutoffController) {
401                case ::gig::vcf_cutoff_ctrl_modwheel:
402                    ctrl = 1;
403                    break;
404                case ::gig::vcf_cutoff_ctrl_effect1:
405                    ctrl = 12;
406                    break;
407                case ::gig::vcf_cutoff_ctrl_effect2:
408                    ctrl = 13;
409                    break;
410                case ::gig::vcf_cutoff_ctrl_breath:
411                    ctrl = 2;
412                    break;
413                case ::gig::vcf_cutoff_ctrl_foot:
414                    ctrl = 4;
415                    break;
416                case ::gig::vcf_cutoff_ctrl_sustainpedal:
417                    ctrl = 64;
418                    break;
419                case ::gig::vcf_cutoff_ctrl_softpedal:
420                    ctrl = 67;
421                    break;
422                case ::gig::vcf_cutoff_ctrl_genpurpose7:
423                    ctrl = 82;
424                    break;
425                case ::gig::vcf_cutoff_ctrl_genpurpose8:
426                    ctrl = 83;
427                    break;
428                case ::gig::vcf_cutoff_ctrl_aftertouch:
429                    ctrl = CTRL_TABLE_IDX_AFTERTOUCH;
430                    break;
431                case ::gig::vcf_cutoff_ctrl_none:
432                default:
433                    ctrl = 0;
434                    break;
435            }
436    
437            return ctrl;
438        }
439    
440        uint8_t Voice::GetVCFResonanceCtrl() {
441            uint8_t ctrl;
442            switch (pRegion->VCFResonanceController) {
443                case ::gig::vcf_res_ctrl_genpurpose3:
444                    ctrl = 18;
445                    break;
446                case ::gig::vcf_res_ctrl_genpurpose4:
447                    ctrl = 19;
448                    break;
449                case ::gig::vcf_res_ctrl_genpurpose5:
450                    ctrl = 80;
451                    break;
452                case ::gig::vcf_res_ctrl_genpurpose6:
453                    ctrl = 81;
454                    break;
455                case ::gig::vcf_res_ctrl_none:
456                default:
457                    ctrl = 0;
458            }
459    
460            return ctrl;
461        }
462    
463          if (itTriggerEvent && itKillEvent->FragmentPos() <= itTriggerEvent->FragmentPos()) return;      void Voice::TriggerEG1(const EGInfo& egInfo, double velrelease, double velocityAttenuation, uint sampleRate, uint8_t velocity) {
464          this->itKillEvent = itKillEvent;          EG1.trigger(pRegion->EG1PreAttack,
465                        RTMath::Max(pRegion->EG1Attack, 0.0316) * egInfo.Attack,
466                        pRegion->EG1Hold,
467                        pRegion->EG1Decay1 * egInfo.Decay * velrelease,
468                        pRegion->EG1Decay2 * egInfo.Decay * velrelease,
469                        pRegion->EG1InfiniteSustain,
470                        pRegion->EG1Sustain,
471                        RTMath::Max(pRegion->EG1Release * velrelease, 0.014) * egInfo.Release,
472                        velocityAttenuation,
473                        sampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
474        }
475    
476        void Voice::TriggerEG2(const EGInfo& egInfo, double velrelease, double velocityAttenuation, uint sampleRate, uint8_t velocity) {
477            EG2.trigger(uint(RgnInfo.EG2PreAttack),
478                        RgnInfo.EG2Attack * egInfo.Attack,
479                        false,
480                        RgnInfo.EG2Decay1 * egInfo.Decay * velrelease,
481                        RgnInfo.EG2Decay2 * egInfo.Decay * velrelease,
482                        RgnInfo.EG2InfiniteSustain,
483                        uint(RgnInfo.EG2Sustain),
484                        RgnInfo.EG2Release * egInfo.Release * velrelease,
485                        velocityAttenuation,
486                        sampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
487        }
488    
489        void Voice::ProcessGroupEvent(RTList<Event>::Iterator& itEvent) {
490            dmsg(4,("Voice %p processGroupEvents event type=%d", (void*)this, itEvent->Type));
491    
492            // TODO: The SustainPedal condition could be wrong, maybe the
493            // check should be if this Voice is in release stage or is a
494            // release sample instead. Need to test this in GSt.
495            // -- Andreas
496            //
497            // Commented sustain pedal check out. I don't think voices of the same
498            // note should be stopped at all, because it doesn't sound naturally
499            // with a drumkit.
500            // -- Christian, 2013-01-08
501            if (itEvent->Param.Note.Key != HostKey() /*||
502                !GetGigEngineChannel()->SustainPedal*/) {
503                dmsg(4,("Voice %p - kill", (void*)this));
504    
505                // kill the voice fast
506                pEG1->enterFadeOutStage();
507            }
508        }
509    
510        void Voice::CalculateFadeOutCoeff(float FadeOutTime, float SampleRate) {
511            EG1.CalculateFadeOutCoeff(FadeOutTime, SampleRate);
512        }
513    
514        int Voice::CalculatePan(uint8_t pan) {
515            int p;
516            // Gst behaviour: -64 and 63 are special cases
517            if (RgnInfo.Pan == -64)     p = pan * 2 - 127;
518            else if (RgnInfo.Pan == 63) p = pan * 2;
519            else                        p = pan + RgnInfo.Pan;
520    
521            if (p < 0) return 0;
522            if (p > 127) return 127;
523            return p;
524      }      }
525    
526  }} // namespace LinuxSampler::gig  }} // namespace LinuxSampler::gig
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