/[svn]/linuxsampler/trunk/src/engines/gig/Voice.cpp
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revision 53 by schoenebeck, Mon Apr 26 17:15:51 2004 UTC revision 830 by persson, Sun Jan 15 18:23:11 2006 UTC
# Line 2  Line 2 
2   *                                                                         *   *                                                                         *
3   *   LinuxSampler - modular, streaming capable sampler                     *   *   LinuxSampler - modular, streaming capable sampler                     *
4   *                                                                         *   *                                                                         *
5   *   Copyright (C) 2003 by Benno Senoner and Christian Schoenebeck         *   *   Copyright (C) 2003, 2004 by Benno Senoner and Christian Schoenebeck   *
6     *   Copyright (C) 2005, 2006 Christian Schoenebeck                        *
7   *                                                                         *   *                                                                         *
8   *   This program is free software; you can redistribute it and/or modify  *   *   This program is free software; you can redistribute it and/or modify  *
9   *   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 20  Line 21 
21   *   MA  02111-1307  USA                                                   *   *   MA  02111-1307  USA                                                   *
22   ***************************************************************************/   ***************************************************************************/
23    
24  #include "EGADSR.h"  #include "../../common/Features.h"
25  #include "Manipulator.h"  #include "Synthesizer.h"
26    #include "Profiler.h"
27    
28  #include "Voice.h"  #include "Voice.h"
29    
30  namespace LinuxSampler { namespace gig {  namespace LinuxSampler { namespace gig {
31    
     // FIXME: no support for layers (nor crossfades) yet  
   
32      const float Voice::FILTER_CUTOFF_COEFF(CalculateFilterCutoffCoeff());      const float Voice::FILTER_CUTOFF_COEFF(CalculateFilterCutoffCoeff());
33    
34      float Voice::CalculateFilterCutoffCoeff() {      float Voice::CalculateFilterCutoffCoeff() {
35          return log(FILTER_CUTOFF_MIN / FILTER_CUTOFF_MAX);          return log(CONFIG_FILTER_CUTOFF_MAX / CONFIG_FILTER_CUTOFF_MIN);
36      }      }
37    
38      Voice::Voice() {      Voice::Voice() {
39          pEngine     = NULL;          pEngine     = NULL;
40          pDiskThread = NULL;          pDiskThread = NULL;
41          Active = false;          PlaybackState = playback_state_end;
42          pEG1   = NULL;          pLFO1 = new LFOUnsigned(1.0f);  // amplitude EG (0..1 range)
43          pEG2   = NULL;          pLFO2 = new LFOUnsigned(1.0f);  // filter EG (0..1 range)
44          pEG3   = NULL;          pLFO3 = new LFOSigned(1200.0f); // pitch EG (-1200..+1200 range)
45          pVCAManipulator  = NULL;          KeyGroup = 0;
46          pVCFCManipulator = NULL;          SynthesisMode = 0; // set all mode bits to 0 first
47          pVCOManipulator  = NULL;          // select synthesis implementation (currently either pure C++ or MMX+SSE(1))
48          pLFO1  = NULL;          #if CONFIG_ASM && ARCH_X86
49          pLFO2  = NULL;          SYNTHESIS_MODE_SET_IMPLEMENTATION(SynthesisMode, Features::supportsMMX() && Features::supportsSSE());
50          pLFO3  = NULL;          #else
51            SYNTHESIS_MODE_SET_IMPLEMENTATION(SynthesisMode, false);
52            #endif
53            SYNTHESIS_MODE_SET_PROFILING(SynthesisMode, Profiler::isEnabled());
54    
55            finalSynthesisParameters.filterLeft.Reset();
56            finalSynthesisParameters.filterRight.Reset();
57      }      }
58    
59      Voice::~Voice() {      Voice::~Voice() {
         if (pEG1)  delete pEG1;  
         if (pEG2)  delete pEG2;  
         if (pEG3)  delete pEG3;  
60          if (pLFO1) delete pLFO1;          if (pLFO1) delete pLFO1;
61          if (pLFO2) delete pLFO2;          if (pLFO2) delete pLFO2;
62          if (pLFO3) delete pLFO3;          if (pLFO3) delete pLFO3;
         if (pVCAManipulator)  delete pVCAManipulator;  
         if (pVCFCManipulator) delete pVCFCManipulator;  
         if (pVCOManipulator)  delete pVCOManipulator;  
     }  
   
     void Voice::SetOutput(AudioOutputDevice* pAudioOutputDevice) {  
         this->pOutputLeft        = pAudioOutputDevice->Channel(0)->Buffer();  
         this->pOutputRight       = pAudioOutputDevice->Channel(1)->Buffer();  
         this->MaxSamplesPerCycle = pAudioOutputDevice->MaxSamplesPerCycle();  
         this->SampleRate         = pAudioOutputDevice->SampleRate();  
63      }      }
64    
65      void Voice::SetEngine(Engine* pEngine) {      void Voice::SetEngine(Engine* pEngine) {
66          this->pEngine = pEngine;          this->pEngine     = pEngine;
   
         // delete old objects  
         if (pEG1) delete pEG1;  
         if (pEG2) delete pEG2;  
         if (pEG3) delete pEG3;  
         if (pVCAManipulator)  delete pVCAManipulator;  
         if (pVCFCManipulator) delete pVCFCManipulator;  
         if (pVCOManipulator)  delete pVCOManipulator;  
         if (pLFO1) delete pLFO1;  
         if (pLFO2) delete pLFO2;  
         if (pLFO3) delete pLFO3;  
   
         // create new ones  
         pEG1   = new EGADSR(pEngine, Event::destination_vca);  
         pEG2   = new EGADSR(pEngine, Event::destination_vcfc);  
         pEG3   = new EGDecay(pEngine, Event::destination_vco);  
         pVCAManipulator  = new VCAManipulator(pEngine);  
         pVCFCManipulator = new VCFCManipulator(pEngine);  
         pVCOManipulator  = new VCOManipulator(pEngine);  
         pLFO1  = new LFO<gig::VCAManipulator>(0.0f, 1.0f, LFO<VCAManipulator>::propagation_top_down, pVCAManipulator, pEngine->pEventPool);  
         pLFO2  = new LFO<gig::VCFCManipulator>(0.0f, 1.0f, LFO<VCFCManipulator>::propagation_top_down, pVCFCManipulator, pEngine->pEventPool);  
         pLFO3  = new LFO<gig::VCOManipulator>(-1200.0f, 1200.0f, LFO<VCOManipulator>::propagation_middle_balanced, pVCOManipulator, pEngine->pEventPool); // +-1 octave (+-1200 cents) max.  
   
67          this->pDiskThread = pEngine->pDiskThread;          this->pDiskThread = pEngine->pDiskThread;
68          dmsg(1,("Voice::SetEngine()\n"));          dmsg(6,("Voice::SetEngine()\n"));
69      }      }
70    
71      /**      /**
72       *  Initializes and triggers the voice, a disk stream will be launched if       *  Initializes and triggers the voice, a disk stream will be launched if
73       *  needed.       *  needed.
74       *       *
75       *  @param pNoteOnEvent - event that caused triggering of this voice       *  @param pEngineChannel - engine channel on which this voice was ordered
76       *  @param PitchBend    - MIDI detune factor (-8192 ... +8191)       *  @param itNoteOnEvent  - event that caused triggering of this voice
77       *  @param pInstrument  - points to the loaded instrument which provides sample wave(s) and articulation data       *  @param PitchBend      - MIDI detune factor (-8192 ... +8191)
78       *  @returns            0 on success, a value < 0 if something failed       *  @param pDimRgn        - points to the dimension region which provides sample wave(s) and articulation data
79         *  @param VoiceType      - type of this voice
80         *  @param iKeyGroup      - a value > 0 defines a key group in which this voice is member of
81         *  @returns 0 on success, a value < 0 if the voice wasn't triggered
82         *           (either due to an error or e.g. because no region is
83         *           defined for the given key)
84       */       */
85      int Voice::Trigger(Event* pNoteOnEvent, int PitchBend, ::gig::Instrument* pInstrument) {      int Voice::Trigger(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itNoteOnEvent, int PitchBend, ::gig::DimensionRegion* pDimRgn, type_t VoiceType, int iKeyGroup) {
86          if (!pInstrument) {          this->pEngineChannel = pEngineChannel;
87             dmsg(1,("voice::trigger: !pInstrument\n"));          this->pDimRgn        = pDimRgn;
88             exit(EXIT_FAILURE);  
89          }          #if CONFIG_DEVMODE
90            if (itNoteOnEvent->FragmentPos() > pEngine->MaxSamplesPerCycle) { // just a sanity check for debugging
91          Active          = true;              dmsg(1,("Voice::Trigger(): ERROR, TriggerDelay > Totalsamples\n"));
92          MIDIKey         = pNoteOnEvent->Key;          }
93          pRegion         = pInstrument->GetRegion(MIDIKey);          #endif // CONFIG_DEVMODE
94          PlaybackState   = playback_state_ram; // we always start playback from RAM cache and switch then to disk if needed  
95          Pos             = 0;          Type            = VoiceType;
96          Delay           = pNoteOnEvent->FragmentPos();          MIDIKey         = itNoteOnEvent->Param.Note.Key;
97          pTriggerEvent   = pNoteOnEvent;          PlaybackState   = playback_state_init; // mark voice as triggered, but no audio rendered yet
98            Delay           = itNoteOnEvent->FragmentPos();
99          if (!pRegion) {          itTriggerEvent  = itNoteOnEvent;
100              std::cerr << "Audio Thread: No Region defined for MIDI key " << MIDIKey << std::endl << std::flush;          itKillEvent     = Pool<Event>::Iterator();
101              Kill();          KeyGroup        = iKeyGroup;
102              return -1;          pSample         = pDimRgn->pSample; // sample won't change until the voice is finished
103          }  
104            // calculate volume
105          //TODO: current MIDI controller values are not taken into account yet          const double velocityAttenuation = pDimRgn->GetVelocityAttenuation(itNoteOnEvent->Param.Note.Velocity);
106          ::gig::DimensionRegion* pDimRgn = NULL;  
107          for (int i = pRegion->Dimensions - 1; i >= 0; i--) { // Check if instrument has a velocity split          Volume = velocityAttenuation / 32768.0f; // we downscale by 32768 to convert from int16 value range to DSP value range (which is -1.0..1.0)
108              if (pRegion->pDimensionDefinitions[i].dimension == ::gig::dimension_velocity) {  
109                  uint DimValues[5] = {0,0,0,0,0};          Volume *= pDimRgn->SampleAttenuation;
110                      DimValues[i] = pNoteOnEvent->Velocity;  
111                  pDimRgn = pRegion->GetDimensionRegionByValue(DimValues[4],DimValues[3],DimValues[2],DimValues[1],DimValues[0]);          // the volume of release triggered samples depends on note length
112            if (Type == type_release_trigger) {
113                float noteLength = float(pEngine->FrameTime + Delay -
114                                         pEngineChannel->pMIDIKeyInfo[MIDIKey].NoteOnTime) / pEngine->SampleRate;
115                float attenuation = 1 - 0.01053 * (256 >> pDimRgn->ReleaseTriggerDecay) * noteLength;
116                if (attenuation <= 0) return -1;
117                Volume *= attenuation;
118            }
119    
120            // select channel mode (mono or stereo)
121            SYNTHESIS_MODE_SET_CHANNELS(SynthesisMode, pSample->Channels == 2);
122    
123            // get starting crossfade volume level
124            switch (pDimRgn->AttenuationController.type) {
125                case ::gig::attenuation_ctrl_t::type_channelaftertouch:
126                    CrossfadeVolume = 1.0f; //TODO: aftertouch not supported yet
127                  break;                  break;
128              }              case ::gig::attenuation_ctrl_t::type_velocity:
129          }                  CrossfadeVolume = CrossfadeAttenuation(itNoteOnEvent->Param.Note.Velocity);
130          if (!pDimRgn) { // if there was no velocity split                  break;
131              pDimRgn = pRegion->GetDimensionRegionByValue(0,0,0,0,0);              case ::gig::attenuation_ctrl_t::type_controlchange: //FIXME: currently not sample accurate
132                    CrossfadeVolume = CrossfadeAttenuation(pEngineChannel->ControllerTable[pDimRgn->AttenuationController.controller_number]);
133                    break;
134                case ::gig::attenuation_ctrl_t::type_none: // no crossfade defined
135                default:
136                    CrossfadeVolume = 1.0f;
137          }          }
138    
139          pSample = pDimRgn->pSample; // sample won't change until the voice is finished          PanLeft  = 1.0f - float(RTMath::Max(pDimRgn->Pan, 0)) /  63.0f;
140            PanRight = 1.0f - float(RTMath::Min(pDimRgn->Pan, 0)) / -64.0f;
141    
142            finalSynthesisParameters.dPos = pDimRgn->SampleStartOffset; // offset where we should start playback of sample (0 - 2000 sample points)
143            Pos = pDimRgn->SampleStartOffset;
144    
145          // Check if the sample needs disk streaming or is too short for that          // Check if the sample needs disk streaming or is too short for that
146          long cachedsamples = pSample->GetCache().Size / pSample->FrameSize;          long cachedsamples = pSample->GetCache().Size / pSample->FrameSize;
147          DiskVoice          = cachedsamples < pSample->SamplesTotal;          DiskVoice          = cachedsamples < pSample->SamplesTotal;
148    
149          if (DiskVoice) { // voice to be streamed from disk          if (DiskVoice) { // voice to be streamed from disk
150              MaxRAMPos = cachedsamples - (MaxSamplesPerCycle << 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)              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)
151    
152              // check if there's a loop defined which completely fits into the cached (RAM) part of the sample              // check if there's a loop defined which completely fits into the cached (RAM) part of the sample
153              if (pSample->Loops && pSample->LoopEnd <= MaxRAMPos) {              RAMLoop = (pSample->Loops && pSample->LoopEnd <= MaxRAMPos);
                 RAMLoop        = true;  
                 LoopCyclesLeft = pSample->LoopPlayCount;  
             }  
             else RAMLoop = false;  
154    
155              if (pDiskThread->OrderNewStream(&DiskStreamRef, pSample, MaxRAMPos, !RAMLoop) < 0) {              if (pDiskThread->OrderNewStream(&DiskStreamRef, pSample, MaxRAMPos, !RAMLoop) < 0) {
156                  dmsg(1,("Disk stream order failed!\n"));                  dmsg(1,("Disk stream order failed!\n"));
157                  Kill();                  KillImmediately();
158                  return -1;                  return -1;
159              }              }
160              dmsg(4,("Disk voice launched (cached samples: %d, total Samples: %d, MaxRAMPos: %d, RAMLooping: %s)\n", cachedsamples, pSample->SamplesTotal, MaxRAMPos, (RAMLoop) ? "yes" : "no"));              dmsg(4,("Disk voice launched (cached samples: %d, total Samples: %d, MaxRAMPos: %d, RAMLooping: %s)\n", cachedsamples, pSample->SamplesTotal, MaxRAMPos, (RAMLoop) ? "yes" : "no"));
161          }          }
162          else { // RAM only voice          else { // RAM only voice
163              MaxRAMPos = cachedsamples;              MaxRAMPos = cachedsamples;
164              if (pSample->Loops) {              RAMLoop = (pSample->Loops != 0);
                 RAMLoop        = true;  
                 LoopCyclesLeft = pSample->LoopPlayCount;  
             }  
             else RAMLoop = false;  
165              dmsg(4,("RAM only voice launched (Looping: %s)\n", (RAMLoop) ? "yes" : "no"));              dmsg(4,("RAM only voice launched (Looping: %s)\n", (RAMLoop) ? "yes" : "no"));
166          }          }
167            if (RAMLoop) {
168                loop.uiTotalCycles = pSample->LoopPlayCount;
169                loop.uiCyclesLeft  = pSample->LoopPlayCount;
170                loop.uiStart       = pSample->LoopStart;
171                loop.uiEnd         = pSample->LoopEnd;
172                loop.uiSize        = pSample->LoopSize;
173            }
174    
175          // calculate initial pitch value          // calculate initial pitch value
176          {          {
177              double pitchbasecents = pDimRgn->FineTune * 10;              double pitchbasecents = pDimRgn->FineTune + (int) pEngine->ScaleTuning[MIDIKey % 12];
178              if (pDimRgn->PitchTrack) pitchbasecents += (MIDIKey - (int) pDimRgn->UnityNote) * 100;              if (pDimRgn->PitchTrack) pitchbasecents += (MIDIKey - (int) pDimRgn->UnityNote) * 100;
179              this->PitchBase = RTMath::CentsToFreqRatio(pitchbasecents);              this->PitchBase = RTMath::CentsToFreqRatio(pitchbasecents) * (double(pSample->SamplesPerSecond) / double(pEngine->SampleRate));
180              this->PitchBend = RTMath::CentsToFreqRatio(((double) PitchBend / 8192.0) * 200.0); // pitchbend wheel +-2 semitones = 200 cents              this->PitchBend = RTMath::CentsToFreqRatio(((double) PitchBend / 8192.0) * 200.0); // pitchbend wheel +-2 semitones = 200 cents
181          }          }
182    
183            // the length of the decay and release curves are dependent on the velocity
184          Volume = pDimRgn->GetVelocityAttenuation(pNoteOnEvent->Velocity) / 32768.0f; // we downscale by 32768 to convert from int16 value range to DSP value range (which is -1.0..1.0)          const double velrelease = 1 / pDimRgn->GetVelocityRelease(itNoteOnEvent->Param.Note.Velocity);
   
185    
186          // setup EG 1 (VCA EG)          // setup EG 1 (VCA EG)
187          {          {
# Line 199  namespace LinuxSampler { namespace gig { Line 195  namespace LinuxSampler { namespace gig {
195                      eg1controllervalue = 0; // TODO: aftertouch not yet supported                      eg1controllervalue = 0; // TODO: aftertouch not yet supported
196                      break;                      break;
197                  case ::gig::eg1_ctrl_t::type_velocity:                  case ::gig::eg1_ctrl_t::type_velocity:
198                      eg1controllervalue = pNoteOnEvent->Velocity;                      eg1controllervalue = itNoteOnEvent->Param.Note.Velocity;
199                      break;                      break;
200                  case ::gig::eg1_ctrl_t::type_controlchange: // MIDI control change controller                  case ::gig::eg1_ctrl_t::type_controlchange: // MIDI control change controller
201                      eg1controllervalue = pEngine->ControllerTable[pDimRgn->EG1Controller.controller_number];                      eg1controllervalue = pEngineChannel->ControllerTable[pDimRgn->EG1Controller.controller_number];
202                      break;                      break;
203              }              }
204              if (pDimRgn->EG1ControllerInvert) eg1controllervalue = 127 - eg1controllervalue;              if (pDimRgn->EG1ControllerInvert) eg1controllervalue = 127 - eg1controllervalue;
205    
206              // calculate influence of EG1 controller on EG1's parameters (TODO: needs to be fine tuned)              // calculate influence of EG1 controller on EG1's parameters
207              double eg1attack  = (pDimRgn->EG1ControllerAttackInfluence)  ? 0.0001 * (double) (1 << pDimRgn->EG1ControllerAttackInfluence)  * eg1controllervalue : 0.0;              // (eg1attack is different from the others)
208              double eg1decay   = (pDimRgn->EG1ControllerDecayInfluence)   ? 0.0001 * (double) (1 << pDimRgn->EG1ControllerDecayInfluence)   * eg1controllervalue : 0.0;              double eg1attack  = (pDimRgn->EG1ControllerAttackInfluence)  ?
209              double eg1release = (pDimRgn->EG1ControllerReleaseInfluence) ? 0.0001 * (double) (1 << pDimRgn->EG1ControllerReleaseInfluence) * eg1controllervalue : 0.0;                  1 + 0.031 * (double) (pDimRgn->EG1ControllerAttackInfluence == 1 ?
210                                          1 : 1 << pDimRgn->EG1ControllerAttackInfluence) * eg1controllervalue : 1.0;
211              pEG1->Trigger(pDimRgn->EG1PreAttack,              double eg1decay   = (pDimRgn->EG1ControllerDecayInfluence)   ? 1 + 0.00775 * (double) (1 << pDimRgn->EG1ControllerDecayInfluence)   * eg1controllervalue : 1.0;
212                            pDimRgn->EG1Attack + eg1attack,              double eg1release = (pDimRgn->EG1ControllerReleaseInfluence) ? 1 + 0.00775 * (double) (1 << pDimRgn->EG1ControllerReleaseInfluence) * eg1controllervalue : 1.0;
213                            pDimRgn->EG1Hold,  
214                            pSample->LoopStart,              EG1.trigger(pDimRgn->EG1PreAttack,
215                            pDimRgn->EG1Decay1 + eg1decay,                          pDimRgn->EG1Attack * eg1attack,
216                            pDimRgn->EG1Decay2 + eg1decay,                          pDimRgn->EG1Hold,
217                            pDimRgn->EG1InfiniteSustain,                          pDimRgn->EG1Decay1 * eg1decay * velrelease,
218                            pDimRgn->EG1Sustain,                          pDimRgn->EG1Decay2 * eg1decay * velrelease,
219                            pDimRgn->EG1Release + eg1release,                          pDimRgn->EG1InfiniteSustain,
220                            Delay);                          pDimRgn->EG1Sustain,
221          }                          pDimRgn->EG1Release * eg1release * velrelease,
222                            velocityAttenuation,
223                            pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
224            }
225    
226            // setup initial volume in synthesis parameters
227            fFinalVolume = getVolume() * EG1.getLevel();
228            finalSynthesisParameters.fFinalVolumeLeft  = fFinalVolume * PanLeft;
229            finalSynthesisParameters.fFinalVolumeRight = fFinalVolume * PanRight;
230    
231    
     #if ENABLE_FILTER  
232          // setup EG 2 (VCF Cutoff EG)          // setup EG 2 (VCF Cutoff EG)
233          {          {
234              // get current value of EG2 controller              // get current value of EG2 controller
# Line 238  namespace LinuxSampler { namespace gig { Line 241  namespace LinuxSampler { namespace gig {
241                      eg2controllervalue = 0; // TODO: aftertouch not yet supported                      eg2controllervalue = 0; // TODO: aftertouch not yet supported
242                      break;                      break;
243                  case ::gig::eg2_ctrl_t::type_velocity:                  case ::gig::eg2_ctrl_t::type_velocity:
244                      eg2controllervalue = pNoteOnEvent->Velocity;                      eg2controllervalue = itNoteOnEvent->Param.Note.Velocity;
245                      break;                      break;
246                  case ::gig::eg2_ctrl_t::type_controlchange: // MIDI control change controller                  case ::gig::eg2_ctrl_t::type_controlchange: // MIDI control change controller
247                      eg2controllervalue = pEngine->ControllerTable[pDimRgn->EG2Controller.controller_number];                      eg2controllervalue = pEngineChannel->ControllerTable[pDimRgn->EG2Controller.controller_number];
248                      break;                      break;
249              }              }
250              if (pDimRgn->EG2ControllerInvert) eg2controllervalue = 127 - eg2controllervalue;              if (pDimRgn->EG2ControllerInvert) eg2controllervalue = 127 - eg2controllervalue;
251    
252              // calculate influence of EG2 controller on EG2's parameters (TODO: needs to be fine tuned)              // calculate influence of EG2 controller on EG2's parameters
253              double eg2attack  = (pDimRgn->EG2ControllerAttackInfluence)  ? 0.0001 * (double) (1 << pDimRgn->EG2ControllerAttackInfluence)  * eg2controllervalue : 0.0;              double eg2attack  = (pDimRgn->EG2ControllerAttackInfluence)  ? 1 + 0.00775 * (double) (1 << pDimRgn->EG2ControllerAttackInfluence)  * eg2controllervalue : 1.0;
254              double eg2decay   = (pDimRgn->EG2ControllerDecayInfluence)   ? 0.0001 * (double) (1 << pDimRgn->EG2ControllerDecayInfluence)   * eg2controllervalue : 0.0;              double eg2decay   = (pDimRgn->EG2ControllerDecayInfluence)   ? 1 + 0.00775 * (double) (1 << pDimRgn->EG2ControllerDecayInfluence)   * eg2controllervalue : 1.0;
255              double eg2release = (pDimRgn->EG2ControllerReleaseInfluence) ? 0.0001 * (double) (1 << pDimRgn->EG2ControllerReleaseInfluence) * eg2controllervalue : 0.0;              double eg2release = (pDimRgn->EG2ControllerReleaseInfluence) ? 1 + 0.00775 * (double) (1 << pDimRgn->EG2ControllerReleaseInfluence) * eg2controllervalue : 1.0;
256    
257              pEG2->Trigger(pDimRgn->EG2PreAttack,              EG2.trigger(pDimRgn->EG2PreAttack,
258                            pDimRgn->EG2Attack + eg2attack,                          pDimRgn->EG2Attack * eg2attack,
259                            false,                          false,
260                            pSample->LoopStart,                          pDimRgn->EG2Decay1 * eg2decay * velrelease,
261                            pDimRgn->EG2Decay1 + eg2decay,                          pDimRgn->EG2Decay2 * eg2decay * velrelease,
262                            pDimRgn->EG2Decay2 + eg2decay,                          pDimRgn->EG2InfiniteSustain,
263                            pDimRgn->EG2InfiniteSustain,                          pDimRgn->EG2Sustain,
264                            pDimRgn->EG2Sustain,                          pDimRgn->EG2Release * eg2release * velrelease,
265                            pDimRgn->EG2Release + eg2release,                          velocityAttenuation,
266                            Delay);                          pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
267          }          }
     #endif // ENABLE_FILTER  
268    
269    
270          // setup EG 3 (VCO EG)          // setup EG 3 (VCO EG)
271          {          {
272            double eg3depth = RTMath::CentsToFreqRatio(pDimRgn->EG3Depth);              // if portamento mode is on, we dedicate EG3 purely for portamento, otherwise if portamento is off we do as told by the patch
273            pEG3->Trigger(eg3depth, pDimRgn->EG3Attack, Delay);              bool  bPortamento = pEngineChannel->PortamentoMode && pEngineChannel->PortamentoPos >= 0.0f;
274                float eg3depth = (bPortamento)
275                                     ? RTMath::CentsToFreqRatio((pEngineChannel->PortamentoPos - (float) MIDIKey) * 100)
276                                     : RTMath::CentsToFreqRatio(pDimRgn->EG3Depth);
277                float eg3time = (bPortamento)
278                                    ? pEngineChannel->PortamentoTime
279                                    : pDimRgn->EG3Attack;
280                EG3.trigger(eg3depth, eg3time, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
281                dmsg(5,("PortamentoPos=%f, depth=%f, time=%f\n", pEngineChannel->PortamentoPos, eg3depth, eg3time));
282          }          }
283    
284    
# Line 279  namespace LinuxSampler { namespace gig { Line 289  namespace LinuxSampler { namespace gig {
289                  case ::gig::lfo1_ctrl_internal:                  case ::gig::lfo1_ctrl_internal:
290                      lfo1_internal_depth  = pDimRgn->LFO1InternalDepth;                      lfo1_internal_depth  = pDimRgn->LFO1InternalDepth;
291                      pLFO1->ExtController = 0; // no external controller                      pLFO1->ExtController = 0; // no external controller
292                        bLFO1Enabled         = (lfo1_internal_depth > 0);
293                      break;                      break;
294                  case ::gig::lfo1_ctrl_modwheel:                  case ::gig::lfo1_ctrl_modwheel:
295                      lfo1_internal_depth  = 0;                      lfo1_internal_depth  = 0;
296                      pLFO1->ExtController = 1; // MIDI controller 1                      pLFO1->ExtController = 1; // MIDI controller 1
297                        bLFO1Enabled         = (pDimRgn->LFO1ControlDepth > 0);
298                      break;                      break;
299                  case ::gig::lfo1_ctrl_breath:                  case ::gig::lfo1_ctrl_breath:
300                      lfo1_internal_depth  = 0;                      lfo1_internal_depth  = 0;
301                      pLFO1->ExtController = 2; // MIDI controller 2                      pLFO1->ExtController = 2; // MIDI controller 2
302                        bLFO1Enabled         = (pDimRgn->LFO1ControlDepth > 0);
303                      break;                      break;
304                  case ::gig::lfo1_ctrl_internal_modwheel:                  case ::gig::lfo1_ctrl_internal_modwheel:
305                      lfo1_internal_depth  = pDimRgn->LFO1InternalDepth;                      lfo1_internal_depth  = pDimRgn->LFO1InternalDepth;
306                      pLFO1->ExtController = 1; // MIDI controller 1                      pLFO1->ExtController = 1; // MIDI controller 1
307                        bLFO1Enabled         = (lfo1_internal_depth > 0 || pDimRgn->LFO1ControlDepth > 0);
308                      break;                      break;
309                  case ::gig::lfo1_ctrl_internal_breath:                  case ::gig::lfo1_ctrl_internal_breath:
310                      lfo1_internal_depth  = pDimRgn->LFO1InternalDepth;                      lfo1_internal_depth  = pDimRgn->LFO1InternalDepth;
311                      pLFO1->ExtController = 2; // MIDI controller 2                      pLFO1->ExtController = 2; // MIDI controller 2
312                        bLFO1Enabled         = (lfo1_internal_depth > 0 || pDimRgn->LFO1ControlDepth > 0);
313                      break;                      break;
314                  default:                  default:
315                      lfo1_internal_depth  = 0;                      lfo1_internal_depth  = 0;
316                      pLFO1->ExtController = 0; // no external controller                      pLFO1->ExtController = 0; // no external controller
317                        bLFO1Enabled         = false;
318              }              }
319              pLFO1->Trigger(pDimRgn->LFO1Frequency,              if (bLFO1Enabled) pLFO1->trigger(pDimRgn->LFO1Frequency,
320                            lfo1_internal_depth,                                               start_level_max,
321                            pDimRgn->LFO1ControlDepth,                                               lfo1_internal_depth,
322                            pEngine->ControllerTable[pLFO1->ExtController],                                               pDimRgn->LFO1ControlDepth,
323                            pDimRgn->LFO1FlipPhase,                                               pDimRgn->LFO1FlipPhase,
324                            this->SampleRate,                                               pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
                           Delay);  
325          }          }
326    
327      #if ENABLE_FILTER  
328          // setup LFO 2 (VCF Cutoff LFO)          // setup LFO 2 (VCF Cutoff LFO)
329          {          {
330              uint16_t lfo2_internal_depth;              uint16_t lfo2_internal_depth;
# Line 317  namespace LinuxSampler { namespace gig { Line 332  namespace LinuxSampler { namespace gig {
332                  case ::gig::lfo2_ctrl_internal:                  case ::gig::lfo2_ctrl_internal:
333                      lfo2_internal_depth  = pDimRgn->LFO2InternalDepth;                      lfo2_internal_depth  = pDimRgn->LFO2InternalDepth;
334                      pLFO2->ExtController = 0; // no external controller                      pLFO2->ExtController = 0; // no external controller
335                        bLFO2Enabled         = (lfo2_internal_depth > 0);
336                      break;                      break;
337                  case ::gig::lfo2_ctrl_modwheel:                  case ::gig::lfo2_ctrl_modwheel:
338                      lfo2_internal_depth  = 0;                      lfo2_internal_depth  = 0;
339                      pLFO2->ExtController = 1; // MIDI controller 1                      pLFO2->ExtController = 1; // MIDI controller 1
340                        bLFO2Enabled         = (pDimRgn->LFO2ControlDepth > 0);
341                      break;                      break;
342                  case ::gig::lfo2_ctrl_foot:                  case ::gig::lfo2_ctrl_foot:
343                      lfo2_internal_depth  = 0;                      lfo2_internal_depth  = 0;
344                      pLFO2->ExtController = 4; // MIDI controller 4                      pLFO2->ExtController = 4; // MIDI controller 4
345                        bLFO2Enabled         = (pDimRgn->LFO2ControlDepth > 0);
346                      break;                      break;
347                  case ::gig::lfo2_ctrl_internal_modwheel:                  case ::gig::lfo2_ctrl_internal_modwheel:
348                      lfo2_internal_depth  = pDimRgn->LFO2InternalDepth;                      lfo2_internal_depth  = pDimRgn->LFO2InternalDepth;
349                      pLFO2->ExtController = 1; // MIDI controller 1                      pLFO2->ExtController = 1; // MIDI controller 1
350                        bLFO2Enabled         = (lfo2_internal_depth > 0 || pDimRgn->LFO2ControlDepth > 0);
351                      break;                      break;
352                  case ::gig::lfo2_ctrl_internal_foot:                  case ::gig::lfo2_ctrl_internal_foot:
353                      lfo2_internal_depth  = pDimRgn->LFO2InternalDepth;                      lfo2_internal_depth  = pDimRgn->LFO2InternalDepth;
354                      pLFO2->ExtController = 4; // MIDI controller 4                      pLFO2->ExtController = 4; // MIDI controller 4
355                        bLFO2Enabled         = (lfo2_internal_depth > 0 || pDimRgn->LFO2ControlDepth > 0);
356                      break;                      break;
357                  default:                  default:
358                      lfo2_internal_depth  = 0;                      lfo2_internal_depth  = 0;
359                      pLFO2->ExtController = 0; // no external controller                      pLFO2->ExtController = 0; // no external controller
360                        bLFO2Enabled         = false;
361              }              }
362              pLFO2->Trigger(pDimRgn->LFO2Frequency,              if (bLFO2Enabled) pLFO2->trigger(pDimRgn->LFO2Frequency,
363                            lfo2_internal_depth,                                               start_level_max,
364                            pDimRgn->LFO2ControlDepth,                                               lfo2_internal_depth,
365                            pEngine->ControllerTable[pLFO2->ExtController],                                               pDimRgn->LFO2ControlDepth,
366                            pDimRgn->LFO2FlipPhase,                                               pDimRgn->LFO2FlipPhase,
367                            Delay);                                               pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
368          }          }
369      #endif // ENABLE_FILTER  
370    
371          // setup LFO 3 (VCO LFO)          // setup LFO 3 (VCO LFO)
372          {          {
# Line 354  namespace LinuxSampler { namespace gig { Line 375  namespace LinuxSampler { namespace gig {
375                  case ::gig::lfo3_ctrl_internal:                  case ::gig::lfo3_ctrl_internal:
376                      lfo3_internal_depth  = pDimRgn->LFO3InternalDepth;                      lfo3_internal_depth  = pDimRgn->LFO3InternalDepth;
377                      pLFO3->ExtController = 0; // no external controller                      pLFO3->ExtController = 0; // no external controller
378                        bLFO3Enabled         = (lfo3_internal_depth > 0);
379                      break;                      break;
380                  case ::gig::lfo3_ctrl_modwheel:                  case ::gig::lfo3_ctrl_modwheel:
381                      lfo3_internal_depth  = 0;                      lfo3_internal_depth  = 0;
382                      pLFO3->ExtController = 1; // MIDI controller 1                      pLFO3->ExtController = 1; // MIDI controller 1
383                        bLFO3Enabled         = (pDimRgn->LFO3ControlDepth > 0);
384                      break;                      break;
385                  case ::gig::lfo3_ctrl_aftertouch:                  case ::gig::lfo3_ctrl_aftertouch:
386                      lfo3_internal_depth  = 0;                      lfo3_internal_depth  = 0;
387                      pLFO3->ExtController = 0; // TODO: aftertouch not implemented yet                      pLFO3->ExtController = 0; // TODO: aftertouch not implemented yet
388                        bLFO3Enabled         = false; // see TODO comment in line above
389                      break;                      break;
390                  case ::gig::lfo3_ctrl_internal_modwheel:                  case ::gig::lfo3_ctrl_internal_modwheel:
391                      lfo3_internal_depth  = pDimRgn->LFO3InternalDepth;                      lfo3_internal_depth  = pDimRgn->LFO3InternalDepth;
392                      pLFO3->ExtController = 1; // MIDI controller 1                      pLFO3->ExtController = 1; // MIDI controller 1
393                        bLFO3Enabled         = (lfo3_internal_depth > 0 || pDimRgn->LFO3ControlDepth > 0);
394                      break;                      break;
395                  case ::gig::lfo3_ctrl_internal_aftertouch:                  case ::gig::lfo3_ctrl_internal_aftertouch:
396                      lfo3_internal_depth  = pDimRgn->LFO3InternalDepth;                      lfo3_internal_depth  = pDimRgn->LFO3InternalDepth;
397                      pLFO1->ExtController = 0; // TODO: aftertouch not implemented yet                      pLFO1->ExtController = 0; // TODO: aftertouch not implemented yet
398                        bLFO3Enabled         = (lfo3_internal_depth > 0 /*|| pDimRgn->LFO3ControlDepth > 0*/); // see TODO comment in line above
399                      break;                      break;
400                  default:                  default:
401                      lfo3_internal_depth  = 0;                      lfo3_internal_depth  = 0;
402                      pLFO3->ExtController = 0; // no external controller                      pLFO3->ExtController = 0; // no external controller
403                        bLFO3Enabled         = false;
404              }              }
405              pLFO3->Trigger(pDimRgn->LFO3Frequency,              if (bLFO3Enabled) pLFO3->trigger(pDimRgn->LFO3Frequency,
406                            lfo3_internal_depth,                                               start_level_mid,
407                            pDimRgn->LFO3ControlDepth,                                               lfo3_internal_depth,
408                            pEngine->ControllerTable[pLFO3->ExtController],                                               pDimRgn->LFO3ControlDepth,
409                            false,                                               false,
410                            this->SampleRate,                                               pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
                           Delay);  
411          }          }
412    
413      #if ENABLE_FILTER  
414          #if FORCE_FILTER_USAGE          #if CONFIG_FORCE_FILTER
415          FilterLeft.Enabled = FilterRight.Enabled = true;          const bool bUseFilter = true;
416          #else // use filter only if instrument file told so          #else // use filter only if instrument file told so
417          FilterLeft.Enabled = FilterRight.Enabled = pDimRgn->VCFEnabled;          const bool bUseFilter = pDimRgn->VCFEnabled;
418          #endif // FORCE_FILTER_USAGE          #endif // CONFIG_FORCE_FILTER
419          if (pDimRgn->VCFEnabled) {          SYNTHESIS_MODE_SET_FILTER(SynthesisMode, bUseFilter);
420              #ifdef OVERRIDE_FILTER_CUTOFF_CTRL          if (bUseFilter) {
421              VCFCutoffCtrl.controller = OVERRIDE_FILTER_CUTOFF_CTRL;              #ifdef CONFIG_OVERRIDE_CUTOFF_CTRL
422                VCFCutoffCtrl.controller = CONFIG_OVERRIDE_CUTOFF_CTRL;
423              #else // use the one defined in the instrument file              #else // use the one defined in the instrument file
424              switch (pDimRgn->VCFCutoffController) {              switch (pDimRgn->VCFCutoffController) {
425                  case ::gig::vcf_cutoff_ctrl_modwheel:                  case ::gig::vcf_cutoff_ctrl_modwheel:
# Line 428  namespace LinuxSampler { namespace gig { Line 455  namespace LinuxSampler { namespace gig {
455                      VCFCutoffCtrl.controller = 0;                      VCFCutoffCtrl.controller = 0;
456                      break;                      break;
457              }              }
458              #endif // OVERRIDE_FILTER_CUTOFF_CTRL              #endif // CONFIG_OVERRIDE_CUTOFF_CTRL
459    
460              #ifdef OVERRIDE_FILTER_RES_CTRL              #ifdef CONFIG_OVERRIDE_RESONANCE_CTRL
461              VCFResonanceCtrl.controller = OVERRIDE_FILTER_RES_CTRL;              VCFResonanceCtrl.controller = CONFIG_OVERRIDE_RESONANCE_CTRL;
462              #else // use the one defined in the instrument file              #else // use the one defined in the instrument file
463              switch (pDimRgn->VCFResonanceController) {              switch (pDimRgn->VCFResonanceController) {
464                  case ::gig::vcf_res_ctrl_genpurpose3:                  case ::gig::vcf_res_ctrl_genpurpose3:
# Line 450  namespace LinuxSampler { namespace gig { Line 477  namespace LinuxSampler { namespace gig {
477                  default:                  default:
478                      VCFResonanceCtrl.controller = 0;                      VCFResonanceCtrl.controller = 0;
479              }              }
480              #endif // OVERRIDE_FILTER_RES_CTRL              #endif // CONFIG_OVERRIDE_RESONANCE_CTRL
481    
482              #ifndef OVERRIDE_FILTER_TYPE              #ifndef CONFIG_OVERRIDE_FILTER_TYPE
483              FilterLeft.SetType(pDimRgn->VCFType);              finalSynthesisParameters.filterLeft.SetType(pDimRgn->VCFType);
484              FilterRight.SetType(pDimRgn->VCFType);              finalSynthesisParameters.filterRight.SetType(pDimRgn->VCFType);
485              #else // override filter type              #else // override filter type
486              FilterLeft.SetType(OVERRIDE_FILTER_TYPE);              FilterLeft.SetType(CONFIG_OVERRIDE_FILTER_TYPE);
487              FilterRight.SetType(OVERRIDE_FILTER_TYPE);              FilterRight.SetType(CONFIG_OVERRIDE_FILTER_TYPE);
488              #endif // OVERRIDE_FILTER_TYPE              #endif // CONFIG_OVERRIDE_FILTER_TYPE
489    
490              VCFCutoffCtrl.value    = pEngine->ControllerTable[VCFCutoffCtrl.controller];              VCFCutoffCtrl.value    = pEngineChannel->ControllerTable[VCFCutoffCtrl.controller];
491              VCFResonanceCtrl.value = pEngine->ControllerTable[VCFResonanceCtrl.controller];              VCFResonanceCtrl.value = pEngineChannel->ControllerTable[VCFResonanceCtrl.controller];
492    
493              // calculate cutoff frequency              // calculate cutoff frequency
494              float cutoff = (!VCFCutoffCtrl.controller)              float cutoff = pDimRgn->GetVelocityCutoff(itNoteOnEvent->Param.Note.Velocity);
                 ? exp((float) (127 - pNoteOnEvent->Velocity) * (float) pDimRgn->VCFVelocityScale * 6.2E-5f * FILTER_CUTOFF_COEFF) * FILTER_CUTOFF_MAX  
                 : exp((float) VCFCutoffCtrl.value * 0.00787402f * FILTER_CUTOFF_COEFF) * FILTER_CUTOFF_MAX;  
   
             // calculate resonance  
             float resonance = (float) VCFResonanceCtrl.value * 0.00787f;   // 0.0..1.0  
495              if (pDimRgn->VCFKeyboardTracking) {              if (pDimRgn->VCFKeyboardTracking) {
496                  resonance += (float) (pNoteOnEvent->Key - pDimRgn->VCFKeyboardTrackingBreakpoint) * 0.00787f;                  cutoff *= exp((itNoteOnEvent->Param.Note.Key - pDimRgn->VCFKeyboardTrackingBreakpoint) * 0.057762265f); // (ln(2) / 12)
497              }              }
498              Constrain(resonance, 0.0, 1.0); // correct resonance if outside allowed value range (0.0..1.0)              CutoffBase = cutoff;
499    
500              VCFCutoffCtrl.fvalue    = cutoff - FILTER_CUTOFF_MIN;              int cvalue;
501              VCFResonanceCtrl.fvalue = resonance;              if (VCFCutoffCtrl.controller) {
502                    cvalue = pEngineChannel->ControllerTable[VCFCutoffCtrl.controller];
503                    if (pDimRgn->VCFCutoffControllerInvert) cvalue = 127 - cvalue;
504                    // VCFVelocityScale in this case means Minimum cutoff
505                    if (cvalue < pDimRgn->VCFVelocityScale) cvalue = pDimRgn->VCFVelocityScale;
506                }
507                else {
508                    cvalue = pDimRgn->VCFCutoff;
509                }
510                cutoff *= float(cvalue) * 0.00787402f; // (1 / 127)
511                if (cutoff > 1.0) cutoff = 1.0;
512                cutoff = (cutoff < 0.5 ? cutoff * 4826 - 1 : cutoff * 5715 - 449);
513                if (cutoff < 1.0) cutoff = 1.0;
514    
515              FilterLeft.SetParameters(cutoff,  resonance, SampleRate);              // calculate resonance
516              FilterRight.SetParameters(cutoff, resonance, SampleRate);              float resonance = (float) (VCFResonanceCtrl.controller ? VCFResonanceCtrl.value : pDimRgn->VCFResonance) * 0.00787f; // 0.0..1.0
517    
518              FilterUpdateCounter = -1;              VCFCutoffCtrl.fvalue    = cutoff - 1.0;
519                VCFResonanceCtrl.fvalue = resonance;
520          }          }
521          else {          else {
522              VCFCutoffCtrl.controller    = 0;              VCFCutoffCtrl.controller    = 0;
523              VCFResonanceCtrl.controller = 0;              VCFResonanceCtrl.controller = 0;
524          }          }
     #endif // ENABLE_FILTER  
   
         // ************************************************  
         // TODO: ARTICULATION DATA HANDLING IS MISSING HERE  
         // ************************************************  
525    
526          return 0; // success          return 0; // success
527      }      }
# Line 509  namespace LinuxSampler { namespace gig { Line 539  namespace LinuxSampler { namespace gig {
539       */       */
540      void Voice::Render(uint Samples) {      void Voice::Render(uint Samples) {
541    
542          // Reset the synthesis parameter matrix          // select default values for synthesis mode bits
543          pEngine->ResetSynthesisParameters(Event::destination_vca, this->Volume);          SYNTHESIS_MODE_SET_LOOP(SynthesisMode, false);
         pEngine->ResetSynthesisParameters(Event::destination_vco, this->PitchBase);  
     #if ENABLE_FILTER  
         pEngine->ResetSynthesisParameters(Event::destination_vcfc, VCFCutoffCtrl.fvalue);  
         pEngine->ResetSynthesisParameters(Event::destination_vcfr, VCFResonanceCtrl.fvalue);  
     #endif // ENABLE_FILTER  
   
   
         // Apply events to the synthesis parameter matrix  
         ProcessEvents(Samples);  
   
   
         // Let all modulators write their parameter changes to the synthesis parameter matrix for the current audio fragment  
         pEG1->Process(Samples, pEngine->pMIDIKeyInfo[MIDIKey].pEvents, pTriggerEvent, this->Pos, this->PitchBase * this->PitchBend);  
     #if ENABLE_FILTER  
         pEG2->Process(Samples, pEngine->pMIDIKeyInfo[MIDIKey].pEvents, pTriggerEvent, this->Pos, this->PitchBase * this->PitchBend);  
     #endif // ENABLE_FILTER  
         pEG3->Process(Samples);  
         pLFO1->Process(Samples);  
     #if ENABLE_FILTER  
         pLFO2->Process(Samples);  
     #endif // ENABLE_FILTER  
         pLFO3->Process(Samples);  
   
544    
545          switch (this->PlaybackState) {          switch (this->PlaybackState) {
546    
547                case playback_state_init:
548                    this->PlaybackState = playback_state_ram; // we always start playback from RAM cache and switch then to disk if needed
549                    // no break - continue with playback_state_ram
550    
551              case playback_state_ram: {              case playback_state_ram: {
552                      if (RAMLoop) InterpolateAndLoop(Samples, (sample_t*) pSample->GetCache().pStart, Delay);                      if (RAMLoop) SYNTHESIS_MODE_SET_LOOP(SynthesisMode, true); // enable looping
553                      else         Interpolate(Samples, (sample_t*) pSample->GetCache().pStart, Delay);  
554                        // render current fragment
555                        Synthesize(Samples, (sample_t*) pSample->GetCache().pStart, Delay);
556    
557                      if (DiskVoice) {                      if (DiskVoice) {
558                          // check if we reached the allowed limit of the sample RAM cache                          // check if we reached the allowed limit of the sample RAM cache
559                          if (Pos > MaxRAMPos) {                          if (finalSynthesisParameters.dPos > MaxRAMPos) {
560                              dmsg(5,("Voice: switching to disk playback (Pos=%f)\n", Pos));                              dmsg(5,("Voice: switching to disk playback (Pos=%f)\n", finalSynthesisParameters.dPos));
561                              this->PlaybackState = playback_state_disk;                              this->PlaybackState = playback_state_disk;
562                          }                          }
563                      }                      } else if (finalSynthesisParameters.dPos >= pSample->GetCache().Size / pSample->FrameSize) {
                     else if (Pos >= pSample->GetCache().Size / pSample->FrameSize) {  
564                          this->PlaybackState = playback_state_end;                          this->PlaybackState = playback_state_end;
565                      }                      }
566                  }                  }
# Line 559  namespace LinuxSampler { namespace gig { Line 572  namespace LinuxSampler { namespace gig {
572                          DiskStreamRef.pStream = pDiskThread->AskForCreatedStream(DiskStreamRef.OrderID);                          DiskStreamRef.pStream = pDiskThread->AskForCreatedStream(DiskStreamRef.OrderID);
573                          if (!DiskStreamRef.pStream) {                          if (!DiskStreamRef.pStream) {
574                              std::cout << stderr << "Disk stream not available in time!" << std::endl << std::flush;                              std::cout << stderr << "Disk stream not available in time!" << std::endl << std::flush;
575                              Kill();                              KillImmediately();
576                              return;                              return;
577                          }                          }
578                          DiskStreamRef.pStream->IncrementReadPos(pSample->Channels * (RTMath::DoubleToInt(Pos) - MaxRAMPos));                          DiskStreamRef.pStream->IncrementReadPos(pSample->Channels * (int(finalSynthesisParameters.dPos) - MaxRAMPos));
579                          Pos -= RTMath::DoubleToInt(Pos);                          finalSynthesisParameters.dPos -= int(finalSynthesisParameters.dPos);
580                            RealSampleWordsLeftToRead = -1; // -1 means no silence has been added yet
581                      }                      }
582    
583                        const int sampleWordsLeftToRead = DiskStreamRef.pStream->GetReadSpace();
584    
585                      // add silence sample at the end if we reached the end of the stream (for the interpolator)                      // add silence sample at the end if we reached the end of the stream (for the interpolator)
586                      if (DiskStreamRef.State == Stream::state_end && DiskStreamRef.pStream->GetReadSpace() < (MaxSamplesPerCycle << MAX_PITCH) / pSample->Channels) {                      if (DiskStreamRef.State == Stream::state_end) {
587                          DiskStreamRef.pStream->WriteSilence((MaxSamplesPerCycle << MAX_PITCH) / pSample->Channels);                          const int maxSampleWordsPerCycle = (pEngine->MaxSamplesPerCycle << CONFIG_MAX_PITCH) * pSample->Channels + 6; // +6 for the interpolator algorithm
588                          this->PlaybackState = playback_state_end;                          if (sampleWordsLeftToRead <= maxSampleWordsPerCycle) {
589                                // remember how many sample words there are before any silence has been added
590                                if (RealSampleWordsLeftToRead < 0) RealSampleWordsLeftToRead = sampleWordsLeftToRead;
591                                DiskStreamRef.pStream->WriteSilence(maxSampleWordsPerCycle - sampleWordsLeftToRead);
592                            }
593                      }                      }
594    
595                      sample_t* ptr = DiskStreamRef.pStream->GetReadPtr(); // get the current read_ptr within the ringbuffer where we read the samples from                      sample_t* ptr = DiskStreamRef.pStream->GetReadPtr(); // get the current read_ptr within the ringbuffer where we read the samples from
596                      Interpolate(Samples, ptr, Delay);  
597                      DiskStreamRef.pStream->IncrementReadPos(RTMath::DoubleToInt(Pos) * pSample->Channels);                      // render current audio fragment
598                      Pos -= RTMath::DoubleToInt(Pos);                      Synthesize(Samples, ptr, Delay);
599    
600                        const int iPos = (int) finalSynthesisParameters.dPos;
601                        const int readSampleWords = iPos * pSample->Channels; // amount of sample words actually been read
602                        DiskStreamRef.pStream->IncrementReadPos(readSampleWords);
603                        finalSynthesisParameters.dPos -= iPos; // just keep fractional part of playback position
604    
605                        // change state of voice to 'end' if we really reached the end of the sample data
606                        if (RealSampleWordsLeftToRead >= 0) {
607                            RealSampleWordsLeftToRead -= readSampleWords;
608                            if (RealSampleWordsLeftToRead <= 0) this->PlaybackState = playback_state_end;
609                        }
610                  }                  }
611                  break;                  break;
612    
613              case playback_state_end:              case playback_state_end:
614                  Kill(); // free voice                  std::cerr << "gig::Voice::Render(): entered with playback_state_end, this is a bug!\n" << std::flush;
615                  break;                  break;
616          }          }
617    
   
     #if ENABLE_FILTER  
         // Reset synthesis event lists (except VCO, as VCO events apply channel wide currently)  
         pEngine->pSynthesisEvents[Event::destination_vcfc]->clear();  
         pEngine->pSynthesisEvents[Event::destination_vcfr]->clear();  
     #endif // ENABLE_FILTER  
   
618          // Reset delay          // Reset delay
619          Delay = 0;          Delay = 0;
620    
621          pTriggerEvent = NULL;          itTriggerEvent = Pool<Event>::Iterator();
622    
623          // If release stage finished, let the voice be killed          // If sample stream or release stage finished, kill the voice
624          if (pEG1->GetStage() == EGADSR::stage_end) this->PlaybackState = playback_state_end;          if (PlaybackState == playback_state_end || EG1.getSegmentType() == EGADSR::segment_end) KillImmediately();
625      }      }
626    
627      /**      /**
# Line 605  namespace LinuxSampler { namespace gig { Line 629  namespace LinuxSampler { namespace gig {
629       *  suspended / not running.       *  suspended / not running.
630       */       */
631      void Voice::Reset() {      void Voice::Reset() {
632          pLFO1->Reset();          finalSynthesisParameters.filterLeft.Reset();
633          pLFO2->Reset();          finalSynthesisParameters.filterRight.Reset();
         pLFO3->Reset();  
634          DiskStreamRef.pStream = NULL;          DiskStreamRef.pStream = NULL;
635          DiskStreamRef.hStream = 0;          DiskStreamRef.hStream = 0;
636          DiskStreamRef.State   = Stream::state_unused;          DiskStreamRef.State   = Stream::state_unused;
637          DiskStreamRef.OrderID = 0;          DiskStreamRef.OrderID = 0;
638          Active = false;          PlaybackState = playback_state_end;
639            itTriggerEvent = Pool<Event>::Iterator();
640            itKillEvent    = Pool<Event>::Iterator();
641      }      }
642    
643      /**      /**
644       *  Process the control change event lists of the engine for the current       * Process given list of MIDI note on, note off and sustain pedal events
645       *  audio fragment. Event values will be applied to the synthesis parameter       * for the given time.
      *  matrix.  
646       *       *
647       *  @param Samples - number of samples to be rendered in this audio fragment cycle       * @param itEvent - iterator pointing to the next event to be processed
648         * @param End     - youngest time stamp where processing should be stopped
649       */       */
650      void Voice::ProcessEvents(uint Samples) {      void Voice::processTransitionEvents(RTList<Event>::Iterator& itEvent, uint End) {
651            for (; itEvent && itEvent->FragmentPos() <= End; ++itEvent) {
652                if (itEvent->Type == Event::type_release) {
653                    EG1.update(EGADSR::event_release, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
654                    EG2.update(EGADSR::event_release, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
655                } else if (itEvent->Type == Event::type_cancel_release) {
656                    EG1.update(EGADSR::event_cancel_release, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
657                    EG2.update(EGADSR::event_cancel_release, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
658                }
659            }
660        }
661    
662          // dispatch control change events      /**
663          Event* pCCEvent = pEngine->pCCEvents->first();       * Process given list of MIDI control change and pitch bend events for
664          if (Delay) { // skip events that happened before this voice was triggered       * the given time.
665              while (pCCEvent && pCCEvent->FragmentPos() <= Delay) pCCEvent = pEngine->pCCEvents->next();       *
666          }       * @param itEvent - iterator pointing to the next event to be processed
667          while (pCCEvent) {       * @param End     - youngest time stamp where processing should be stopped
668              if (pCCEvent->Controller) { // if valid MIDI controller       */
669                  #if ENABLE_FILTER      void Voice::processCCEvents(RTList<Event>::Iterator& itEvent, uint End) {
670                  if (pCCEvent->Controller == VCFCutoffCtrl.controller) {          for (; itEvent && itEvent->FragmentPos() <= End; ++itEvent) {
671                      pEngine->pSynthesisEvents[Event::destination_vcfc]->alloc_assign(*pCCEvent);              if (itEvent->Type == Event::type_control_change &&
672                  }                  itEvent->Param.CC.Controller) { // if (valid) MIDI control change event
673                  if (pCCEvent->Controller == VCFResonanceCtrl.controller) {                  if (itEvent->Param.CC.Controller == VCFCutoffCtrl.controller) {
674                      pEngine->pSynthesisEvents[Event::destination_vcfr]->alloc_assign(*pCCEvent);                      processCutoffEvent(itEvent);
675                  }                  }
676                  #endif // ENABLE_FILTER                  if (itEvent->Param.CC.Controller == VCFResonanceCtrl.controller) {
677                  if (pCCEvent->Controller == pLFO1->ExtController) {                      processResonanceEvent(itEvent);
                     pLFO1->SendEvent(pCCEvent);  
678                  }                  }
679                  #if ENABLE_FILTER                  if (itEvent->Param.CC.Controller == pLFO1->ExtController) {
680                  if (pCCEvent->Controller == pLFO2->ExtController) {                      pLFO1->update(itEvent->Param.CC.Value);
                     pLFO2->SendEvent(pCCEvent);  
681                  }                  }
682                  #endif // ENABLE_FILTER                  if (itEvent->Param.CC.Controller == pLFO2->ExtController) {
683                  if (pCCEvent->Controller == pLFO3->ExtController) {                      pLFO2->update(itEvent->Param.CC.Value);
                     pLFO3->SendEvent(pCCEvent);  
684                  }                  }
685              }                  if (itEvent->Param.CC.Controller == pLFO3->ExtController) {
686                        pLFO3->update(itEvent->Param.CC.Value);
             pCCEvent = pEngine->pCCEvents->next();  
         }  
   
   
         // process pitch events  
         {  
             RTEList<Event>* pVCOEventList = pEngine->pSynthesisEvents[Event::destination_vco];  
             Event* pVCOEvent = pVCOEventList->first();  
             if (Delay) { // skip events that happened before this voice was triggered  
                 while (pVCOEvent && pVCOEvent->FragmentPos() <= Delay) pVCOEvent = pVCOEventList->next();  
             }  
             // apply old pitchbend value until first pitch event occurs  
             if (this->PitchBend != 1.0) {  
                 uint end = (pVCOEvent) ? pVCOEvent->FragmentPos() : Samples;  
                 for (uint i = Delay; i < end; i++) {  
                     pEngine->pSynthesisParameters[Event::destination_vco][i] *= this->PitchBend;  
687                  }                  }
688              }                  if (pDimRgn->AttenuationController.type == ::gig::attenuation_ctrl_t::type_controlchange &&
689              float pitch;                      itEvent->Param.CC.Controller == pDimRgn->AttenuationController.controller_number) {
690              while (pVCOEvent) {                      processCrossFadeEvent(itEvent);
                 Event* pNextVCOEvent = pVCOEventList->next();  
   
                 // calculate the influence length of this event (in sample points)  
                 uint end = (pNextVCOEvent) ? pNextVCOEvent->FragmentPos() : Samples;  
   
                 pitch = RTMath::CentsToFreqRatio(((double) pVCOEvent->Pitch / 8192.0) * 200.0); // +-two semitones = +-200 cents  
   
                 // apply pitch value to the pitch parameter sequence  
                 for (uint i = pVCOEvent->FragmentPos(); i < end; i++) {  
                     pEngine->pSynthesisParameters[Event::destination_vco][i] *= pitch;  
691                  }                  }
692                } else if (itEvent->Type == Event::type_pitchbend) { // if pitch bend event
693                  pVCOEvent = pNextVCOEvent;                  processPitchEvent(itEvent);
694              }              }
             if (pVCOEventList->last()) this->PitchBend = pitch;  
695          }          }
696        }
697    
698        void Voice::processPitchEvent(RTList<Event>::Iterator& itEvent) {
699            const float pitch = RTMath::CentsToFreqRatio(((double) itEvent->Param.Pitch.Pitch / 8192.0) * 200.0); // +-two semitones = +-200 cents
700            finalSynthesisParameters.fFinalPitch *= pitch;
701            PitchBend = pitch;
702        }
703    
704      #if ENABLE_FILTER      void Voice::processCrossFadeEvent(RTList<Event>::Iterator& itEvent) {
705          // process filter cutoff events          CrossfadeVolume = CrossfadeAttenuation(itEvent->Param.CC.Value);
706          {          fFinalVolume = getVolume();
707              RTEList<Event>* pCutoffEventList = pEngine->pSynthesisEvents[Event::destination_vcfc];      }
             Event* pCutoffEvent = pCutoffEventList->first();  
             if (Delay) { // skip events that happened before this voice was triggered  
                 while (pCutoffEvent && pCutoffEvent->FragmentPos() <= Delay) pCutoffEvent = pCutoffEventList->next();  
             }  
             float cutoff;  
             while (pCutoffEvent) {  
                 Event* pNextCutoffEvent = pCutoffEventList->next();  
   
                 // calculate the influence length of this event (in sample points)  
                 uint end = (pNextCutoffEvent) ? pNextCutoffEvent->FragmentPos() : Samples;  
   
                 cutoff = exp((float) pCutoffEvent->Value * 0.00787402f * FILTER_CUTOFF_COEFF) * FILTER_CUTOFF_MAX - FILTER_CUTOFF_MIN;  
   
                 // apply cutoff frequency to the cutoff parameter sequence  
                 for (uint i = pCutoffEvent->FragmentPos(); i < end; i++) {  
                     pEngine->pSynthesisParameters[Event::destination_vcfc][i] = cutoff;  
                 }  
708    
709                  pCutoffEvent = pNextCutoffEvent;      float Voice::getVolume() {
710              }          #if CONFIG_PROCESS_MUTED_CHANNELS
711              if (pCutoffEventList->last()) VCFCutoffCtrl.fvalue = cutoff; // needed for initialization of parameter matrix next time          return pEngineChannel->GetMute() ? 0 : (Volume * CrossfadeVolume * pEngineChannel->GlobalVolume);
712          }          #else
713            return Volume * CrossfadeVolume * pEngineChannel->GlobalVolume;
714            #endif
715        }
716    
717          // process filter resonance events      void Voice::processCutoffEvent(RTList<Event>::Iterator& itEvent) {
718          {          int ccvalue = itEvent->Param.CC.Value;
719              RTEList<Event>* pResonanceEventList = pEngine->pSynthesisEvents[Event::destination_vcfr];          if (VCFCutoffCtrl.value == ccvalue) return;
720              Event* pResonanceEvent = pResonanceEventList->first();          VCFCutoffCtrl.value == ccvalue;
721              if (Delay) { // skip events that happened before this voice was triggered          if (pDimRgn->VCFCutoffControllerInvert)  ccvalue = 127 - ccvalue;
722                  while (pResonanceEvent && pResonanceEvent->FragmentPos() <= Delay) pResonanceEvent = pResonanceEventList->next();          if (ccvalue < pDimRgn->VCFVelocityScale) ccvalue = pDimRgn->VCFVelocityScale;
723              }          float cutoff = CutoffBase * float(ccvalue) * 0.00787402f; // (1 / 127)
724              while (pResonanceEvent) {          if (cutoff > 1.0) cutoff = 1.0;
725                  Event* pNextResonanceEvent = pResonanceEventList->next();          cutoff = (cutoff < 0.5 ? cutoff * 4826 - 1 : cutoff * 5715 - 449);
726            if (cutoff < 1.0) cutoff = 1.0;
                 // calculate the influence length of this event (in sample points)  
                 uint end = (pNextResonanceEvent) ? pNextResonanceEvent->FragmentPos() : Samples;  
   
                 // convert absolute controller value to differential  
                 int ctrldelta = pResonanceEvent->Value - VCFResonanceCtrl.value;  
                 VCFResonanceCtrl.value = pResonanceEvent->Value;  
   
                 float resonancedelta = (float) ctrldelta * 0.00787f; // 0.0..1.0  
   
                 // apply cutoff frequency to the cutoff parameter sequence  
                 for (uint i = pResonanceEvent->FragmentPos(); i < end; i++) {  
                     pEngine->pSynthesisParameters[Event::destination_vcfr][i] += resonancedelta;  
                 }  
727    
728                  pResonanceEvent = pNextResonanceEvent;          VCFCutoffCtrl.fvalue = cutoff - 1.0; // needed for initialization of fFinalCutoff next time
729              }          fFinalCutoff = cutoff;
730              if (pResonanceEventList->last()) VCFResonanceCtrl.fvalue = pResonanceEventList->last()->Value * 0.00787f; // needed for initialization of parameter matrix next time      }
731          }  
732      #endif // ENABLE_FILTER      void Voice::processResonanceEvent(RTList<Event>::Iterator& itEvent) {
733            // convert absolute controller value to differential
734            const int ctrldelta = itEvent->Param.CC.Value - VCFResonanceCtrl.value;
735            VCFResonanceCtrl.value = itEvent->Param.CC.Value;
736            const float resonancedelta = (float) ctrldelta * 0.00787f; // 0.0..1.0
737            fFinalResonance += resonancedelta;
738            // needed for initialization of parameter
739            VCFResonanceCtrl.fvalue = itEvent->Param.CC.Value * 0.00787f;
740      }      }
741    
742      /**      /**
743       *  Interpolates the input audio data (no loop).       *  Synthesizes the current audio fragment for this voice.
744       *       *
745       *  @param Samples - number of sample points to be rendered in this audio       *  @param Samples - number of sample points to be rendered in this audio
746       *                   fragment cycle       *                   fragment cycle
747       *  @param pSrc    - pointer to input sample data       *  @param pSrc    - pointer to input sample data
748       *  @param Skip    - number of sample points to skip in output buffer       *  @param Skip    - number of sample points to skip in output buffer
749       */       */
750      void Voice::Interpolate(uint Samples, sample_t* pSrc, uint Skip) {      void Voice::Synthesize(uint Samples, sample_t* pSrc, uint Skip) {
751          int i = Skip;          finalSynthesisParameters.pOutLeft  = &pEngineChannel->pOutputLeft[Skip];
752            finalSynthesisParameters.pOutRight = &pEngineChannel->pOutputRight[Skip];
753            finalSynthesisParameters.pSrc      = pSrc;
754    
755          // FIXME: assuming either mono or stereo          RTList<Event>::Iterator itCCEvent = pEngineChannel->pEvents->first();
756          if (this->pSample->Channels == 2) { // Stereo Sample          RTList<Event>::Iterator itNoteEvent = pEngineChannel->pMIDIKeyInfo[MIDIKey].pEvents->first();
757              while (i < Samples) {  
758                  InterpolateOneStep_Stereo(pSrc, i,          if (Skip) { // skip events that happened before this voice was triggered
759                                            pEngine->pSynthesisParameters[Event::destination_vca][i],              while (itCCEvent && itCCEvent->FragmentPos() <= Skip) ++itCCEvent;
760                                            pEngine->pSynthesisParameters[Event::destination_vco][i],              while (itNoteEvent && itNoteEvent->FragmentPos() <= Skip) ++itNoteEvent;
                                           pEngine->pSynthesisParameters[Event::destination_vcfc][i],  
                                           pEngine->pSynthesisParameters[Event::destination_vcfr][i]);  
             }  
         }  
         else { // Mono Sample  
             while (i < Samples) {  
                 InterpolateOneStep_Mono(pSrc, i,  
                                         pEngine->pSynthesisParameters[Event::destination_vca][i],  
                                         pEngine->pSynthesisParameters[Event::destination_vco][i],  
                                         pEngine->pSynthesisParameters[Event::destination_vcfc][i],  
                                         pEngine->pSynthesisParameters[Event::destination_vcfr][i]);  
             }  
761          }          }
     }  
762    
763      /**          uint killPos;
764       *  Interpolates the input audio data, this method honors looping.          if (itKillEvent) killPos = RTMath::Min(itKillEvent->FragmentPos(), pEngine->MaxFadeOutPos);
      *  
      *  @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::InterpolateAndLoop(uint Samples, sample_t* pSrc, uint Skip) {  
         int i = Skip;  
765    
766          // FIXME: assuming either mono or stereo          uint i = Skip;
767          if (pSample->Channels == 2) { // Stereo Sample          while (i < Samples) {
768              if (pSample->LoopPlayCount) {              int iSubFragmentEnd = RTMath::Min(i + CONFIG_DEFAULT_SUBFRAGMENT_SIZE, Samples);
769                  // render loop (loop count limited)  
770                  while (i < Samples && LoopCyclesLeft) {              // initialize all final synthesis parameters
771                      InterpolateOneStep_Stereo(pSrc, i,              finalSynthesisParameters.fFinalPitch = PitchBase * PitchBend;
772                                                pEngine->pSynthesisParameters[Event::destination_vca][i],              fFinalVolume    = getVolume();
773                                                pEngine->pSynthesisParameters[Event::destination_vco][i],              fFinalCutoff    = VCFCutoffCtrl.fvalue;
774                                                pEngine->pSynthesisParameters[Event::destination_vcfc][i],              fFinalResonance = VCFResonanceCtrl.fvalue;
775                                                pEngine->pSynthesisParameters[Event::destination_vcfr][i]);  
776                      if (Pos > pSample->LoopEnd) {              // process MIDI control change and pitchbend events for this subfragment
777                          Pos = pSample->LoopStart + fmod(Pos - pSample->LoopEnd, pSample->LoopSize);;              processCCEvents(itCCEvent, iSubFragmentEnd);
778                          LoopCyclesLeft--;  
779                      }              // process transition events (note on, note off & sustain pedal)
780                  }              processTransitionEvents(itNoteEvent, iSubFragmentEnd);
781                  // render on without loop  
782                  while (i < Samples) {              // if the voice was killed in this subfragment switch EG1 to fade out stage
783                      InterpolateOneStep_Stereo(pSrc, i,              if (itKillEvent && killPos <= iSubFragmentEnd) {
784                                                pEngine->pSynthesisParameters[Event::destination_vca][i],                  EG1.enterFadeOutStage();
785                                                pEngine->pSynthesisParameters[Event::destination_vco][i],                  itKillEvent = Pool<Event>::Iterator();
                                               pEngine->pSynthesisParameters[Event::destination_vcfc][i],  
                                               pEngine->pSynthesisParameters[Event::destination_vcfr][i]);  
                 }  
786              }              }
787              else { // render loop (endless loop)  
788                  while (i < Samples) {              // process envelope generators
789                      InterpolateOneStep_Stereo(pSrc, i,              switch (EG1.getSegmentType()) {
790                                                pEngine->pSynthesisParameters[Event::destination_vca][i],                  case EGADSR::segment_lin:
791                                                pEngine->pSynthesisParameters[Event::destination_vco][i],                      fFinalVolume *= EG1.processLin();
792                                                pEngine->pSynthesisParameters[Event::destination_vcfc][i],                      break;
793                                                pEngine->pSynthesisParameters[Event::destination_vcfr][i]);                  case EGADSR::segment_exp:
794                      if (Pos > pSample->LoopEnd) {                      fFinalVolume *= EG1.processExp();
795                          Pos = pSample->LoopStart + fmod(Pos - pSample->LoopEnd, pSample->LoopSize);                      break;
796                      }                  case EGADSR::segment_end:
797                  }                      fFinalVolume *= EG1.getLevel();
798                        break; // noop
799              }              }
800          }              switch (EG2.getSegmentType()) {
801          else { // Mono Sample                  case EGADSR::segment_lin:
802              if (pSample->LoopPlayCount) {                      fFinalCutoff *= EG2.processLin();
803                  // render loop (loop count limited)                      break;
804                  while (i < Samples && LoopCyclesLeft) {                  case EGADSR::segment_exp:
805                      InterpolateOneStep_Mono(pSrc, i,                      fFinalCutoff *= EG2.processExp();
806                                              pEngine->pSynthesisParameters[Event::destination_vca][i],                      break;
807                                              pEngine->pSynthesisParameters[Event::destination_vco][i],                  case EGADSR::segment_end:
808                                              pEngine->pSynthesisParameters[Event::destination_vcfc][i],                      fFinalCutoff *= EG2.getLevel();
809                                              pEngine->pSynthesisParameters[Event::destination_vcfr][i]);                      break; // noop
                     if (Pos > pSample->LoopEnd) {  
                         Pos = pSample->LoopStart + fmod(Pos - pSample->LoopEnd, pSample->LoopSize);;  
                         LoopCyclesLeft--;  
                     }  
                 }  
                 // render on without loop  
                 while (i < Samples) {  
                     InterpolateOneStep_Mono(pSrc, i,  
                                             pEngine->pSynthesisParameters[Event::destination_vca][i],  
                                             pEngine->pSynthesisParameters[Event::destination_vco][i],  
                                             pEngine->pSynthesisParameters[Event::destination_vcfc][i],  
                                             pEngine->pSynthesisParameters[Event::destination_vcfr][i]);  
                 }  
810              }              }
811              else { // render loop (endless loop)              if (EG3.active()) finalSynthesisParameters.fFinalPitch *= EG3.render();
812                  while (i < Samples) {  
813                      InterpolateOneStep_Mono(pSrc, i,              // process low frequency oscillators
814                                              pEngine->pSynthesisParameters[Event::destination_vca][i],              if (bLFO1Enabled) fFinalVolume *= pLFO1->render();
815                                              pEngine->pSynthesisParameters[Event::destination_vco][i],              if (bLFO2Enabled) fFinalCutoff *= pLFO2->render();
816                                              pEngine->pSynthesisParameters[Event::destination_vcfc][i],              if (bLFO3Enabled) finalSynthesisParameters.fFinalPitch *= RTMath::CentsToFreqRatio(pLFO3->render());
817                                              pEngine->pSynthesisParameters[Event::destination_vcfr][i]);  
818                      if (Pos > pSample->LoopEnd) {              // if filter enabled then update filter coefficients
819                          Pos = pSample->LoopStart + fmod(Pos - pSample->LoopEnd, pSample->LoopSize);;              if (SYNTHESIS_MODE_GET_FILTER(SynthesisMode)) {
820                      }                  finalSynthesisParameters.filterLeft.SetParameters(fFinalCutoff + 1.0, fFinalResonance, pEngine->SampleRate);
821                    finalSynthesisParameters.filterRight.SetParameters(fFinalCutoff + 1.0, fFinalResonance, pEngine->SampleRate);
822                }
823    
824                // do we need resampling?
825                const float __PLUS_ONE_CENT  = 1.000577789506554859250142541782224725466f;
826                const float __MINUS_ONE_CENT = 0.9994225441413807496009516495583113737666f;
827                const bool bResamplingRequired = !(finalSynthesisParameters.fFinalPitch <= __PLUS_ONE_CENT &&
828                                                   finalSynthesisParameters.fFinalPitch >= __MINUS_ONE_CENT);
829                SYNTHESIS_MODE_SET_INTERPOLATE(SynthesisMode, bResamplingRequired);
830    
831                // prepare final synthesis parameters structure
832                finalSynthesisParameters.uiToGo            = iSubFragmentEnd - i;
833    #ifdef CONFIG_INTERPOLATE_VOLUME
834                finalSynthesisParameters.fFinalVolumeDeltaLeft  =
835                    (fFinalVolume * PanLeft - finalSynthesisParameters.fFinalVolumeLeft) / finalSynthesisParameters.uiToGo;
836                finalSynthesisParameters.fFinalVolumeDeltaRight =
837                    (fFinalVolume * PanRight - finalSynthesisParameters.fFinalVolumeRight) / finalSynthesisParameters.uiToGo;
838    #else
839                finalSynthesisParameters.fFinalVolumeLeft  = fFinalVolume * PanLeft;
840                finalSynthesisParameters.fFinalVolumeRight = fFinalVolume * PanRight;
841    #endif
842                // render audio for one subfragment
843                RunSynthesisFunction(SynthesisMode, &finalSynthesisParameters, &loop);
844    
845                // stop the rendering if volume EG is finished
846                if (EG1.getSegmentType() == EGADSR::segment_end) break;
847    
848                const double newPos = Pos + (iSubFragmentEnd - i) * finalSynthesisParameters.fFinalPitch;
849    
850                // increment envelopes' positions
851                if (EG1.active()) {
852    
853                    // 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
854                    if (pSample->Loops && Pos <= pSample->LoopStart && pSample->LoopStart < newPos) {
855                        EG1.update(EGADSR::event_hold_end, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
856                  }                  }
857    
858                    EG1.increment(1);
859                    if (!EG1.toStageEndLeft()) EG1.update(EGADSR::event_stage_end, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
860                }
861                if (EG2.active()) {
862                    EG2.increment(1);
863                    if (!EG2.toStageEndLeft()) EG2.update(EGADSR::event_stage_end, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
864              }              }
865                EG3.increment(1);
866                if (!EG3.toEndLeft()) EG3.update(); // neutralize envelope coefficient if end reached
867    
868                Pos = newPos;
869                i = iSubFragmentEnd;
870          }          }
871      }      }
872    
873        /** @brief Update current portamento position.
874         *
875         * Will be called when portamento mode is enabled to get the final
876         * portamento position of this active voice from where the next voice(s)
877         * might continue to slide on.
878         *
879         * @param itNoteOffEvent - event which causes this voice to die soon
880         */
881        void Voice::UpdatePortamentoPos(Pool<Event>::Iterator& itNoteOffEvent) {
882            const float fFinalEG3Level = EG3.level(itNoteOffEvent->FragmentPos());
883            pEngineChannel->PortamentoPos = (float) MIDIKey + RTMath::FreqRatioToCents(fFinalEG3Level) * 0.01f;
884        }
885    
886      /**      /**
887       *  Immediately kill the voice.       *  Immediately kill the voice. This method should not be used to kill
888         *  a normal, active voice, because it doesn't take care of things like
889         *  fading down the volume level to avoid clicks and regular processing
890         *  until the kill event actually occured!
891         *
892         *  @see Kill()
893       */       */
894      void Voice::Kill() {      void Voice::KillImmediately() {
895          if (DiskVoice && DiskStreamRef.State != Stream::state_unused) {          if (DiskVoice && DiskStreamRef.State != Stream::state_unused) {
896              pDiskThread->OrderDeletionOfStream(&DiskStreamRef);              pDiskThread->OrderDeletionOfStream(&DiskStreamRef);
897          }          }
898          Reset();          Reset();
899      }      }
900    
901        /**
902         *  Kill the voice in regular sense. Let the voice render audio until
903         *  the kill event actually occured and then fade down the volume level
904         *  very quickly and let the voice die finally. Unlike a normal release
905         *  of a voice, a kill process cannot be cancalled and is therefore
906         *  usually used for voice stealing and key group conflicts.
907         *
908         *  @param itKillEvent - event which caused the voice to be killed
909         */
910        void Voice::Kill(Pool<Event>::Iterator& itKillEvent) {
911            #if CONFIG_DEVMODE
912            if (!itKillEvent) dmsg(1,("gig::Voice::Kill(): ERROR, !itKillEvent !!!\n"));
913            if (itKillEvent && !itKillEvent.isValid()) dmsg(1,("gig::Voice::Kill(): ERROR, itKillEvent invalid !!!\n"));
914            #endif // CONFIG_DEVMODE
915    
916            if (itTriggerEvent && itKillEvent->FragmentPos() <= itTriggerEvent->FragmentPos()) return;
917            this->itKillEvent = itKillEvent;
918        }
919    
920  }} // namespace LinuxSampler::gig  }} // namespace LinuxSampler::gig

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