/[svn]/linuxsampler/trunk/src/engines/gig/Voice.cpp
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revision 236 by schoenebeck, Thu Sep 9 18:44:18 2004 UTC revision 841 by persson, Sat Mar 4 16:23:53 2006 UTC
# Line 3  Line 3 
3   *   LinuxSampler - modular, streaming capable sampler                     *   *   LinuxSampler - modular, streaming capable sampler                     *
4   *                                                                         *   *                                                                         *
5   *   Copyright (C) 2003, 2004 by Benno Senoner and Christian Schoenebeck   *   *   Copyright (C) 2003, 2004 by Benno Senoner and Christian Schoenebeck   *
6     *   Copyright (C) 2005, 2006 Christian Schoenebeck                        *
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    
     // TODO: no support for crossfades yet  
   
32      const float Voice::FILTER_CUTOFF_COEFF(CalculateFilterCutoffCoeff());      const float Voice::FILTER_CUTOFF_COEFF(CalculateFilterCutoffCoeff());
33    
     const int Voice::FILTER_UPDATE_MASK(CalculateFilterUpdateMask());  
   
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);
     }  
   
     int Voice::CalculateFilterUpdateMask() {  
         if (FILTER_UPDATE_PERIOD <= 0) return 0;  
         int power_of_two;  
         for (power_of_two = 0; 1<<power_of_two < FILTER_UPDATE_PERIOD; power_of_two++);  
         return (1 << power_of_two) - 1;  
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;  
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(6,("Voice::SetEngine()\n"));          dmsg(6,("Voice::SetEngine()\n"));
69      }      }
# Line 104  namespace LinuxSampler { namespace gig { Line 72  namespace LinuxSampler { namespace gig {
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       *  @param iLayer       - layer number this voice refers to (only if this is a layered sound of course)       *  @param pDimRgn        - points to the dimension region which provides sample wave(s) and articulation data
79       *  @returns            0 on success, a value < 0 if something failed       *  @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 iLayer) {      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                dmsg(1,("Voice::Trigger(): ERROR, TriggerDelay > Totalsamples\n"));
92            }
93            #endif // CONFIG_DEVMODE
94    
95            Type            = VoiceType;
96            MIDIKey         = itNoteOnEvent->Param.Note.Key;
97            PlaybackState   = playback_state_init; // mark voice as triggered, but no audio rendered yet
98            Delay           = itNoteOnEvent->FragmentPos();
99            itTriggerEvent  = itNoteOnEvent;
100            itKillEvent     = Pool<Event>::Iterator();
101            KeyGroup        = iKeyGroup;
102            pSample         = pDimRgn->pSample; // sample won't change until the voice is finished
103    
104            // calculate volume
105            const double velocityAttenuation = pDimRgn->GetVelocityAttenuation(itNoteOnEvent->Param.Note.Velocity);
106    
107            float 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    
109            volume *= pDimRgn->SampleAttenuation;
110    
111            // 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          Active          = true;          // select channel mode (mono or stereo)
121          MIDIKey         = pNoteOnEvent->Key;          SYNTHESIS_MODE_SET_CHANNELS(SynthesisMode, pSample->Channels == 2);
         pRegion         = pInstrument->GetRegion(MIDIKey);  
         PlaybackState   = playback_state_ram; // we always start playback from RAM cache and switch then to disk if needed  
         Delay           = pNoteOnEvent->FragmentPos();  
         pTriggerEvent   = pNoteOnEvent;  
   
         if (!pRegion) {  
             std::cerr << "gig::Voice: No Region defined for MIDI key " << MIDIKey << std::endl << std::flush;  
             Kill();  
             return -1;  
         }  
   
         // get current dimension values to select the right dimension region  
         //FIXME: controller values for selecting the dimension region here are currently not sample accurate  
         uint DimValues[5] = {0,0,0,0,0};  
         for (int i = pRegion->Dimensions - 1; i >= 0; i--) {  
             switch (pRegion->pDimensionDefinitions[i].dimension) {  
                 case ::gig::dimension_samplechannel:  
                     DimValues[i] = 0; //TODO: we currently ignore this dimension  
                     break;  
                 case ::gig::dimension_layer:  
                     DimValues[i] = iLayer;  
                     // if this is the 1st layer then spawn further voices for all the other layers  
                     if (iLayer == 0)  
                         for (int iNewLayer = 1; iNewLayer < pRegion->pDimensionDefinitions[i].zones; iNewLayer++)  
                             pEngine->LaunchVoice(pNoteOnEvent, iNewLayer);  
                     break;  
                 case ::gig::dimension_velocity:  
                     DimValues[i] = pNoteOnEvent->Velocity;  
                     break;  
                 case ::gig::dimension_channelaftertouch:  
                     DimValues[i] = 0; //TODO: we currently ignore this dimension  
                     break;  
                 case ::gig::dimension_releasetrigger:  
                     DimValues[i] = 0; //TODO: we currently ignore this dimension  
                     break;  
                 case ::gig::dimension_keyboard:  
                     DimValues[i] = (uint) pNoteOnEvent->Key;  
                     break;  
                 case ::gig::dimension_modwheel:  
                     DimValues[i] = pEngine->ControllerTable[1];  
                     break;  
                 case ::gig::dimension_breath:  
                     DimValues[i] = pEngine->ControllerTable[2];  
                     break;  
                 case ::gig::dimension_foot:  
                     DimValues[i] = pEngine->ControllerTable[4];  
                     break;  
                 case ::gig::dimension_portamentotime:  
                     DimValues[i] = pEngine->ControllerTable[5];  
                     break;  
                 case ::gig::dimension_effect1:  
                     DimValues[i] = pEngine->ControllerTable[12];  
                     break;  
                 case ::gig::dimension_effect2:  
                     DimValues[i] = pEngine->ControllerTable[13];  
                     break;  
                 case ::gig::dimension_genpurpose1:  
                     DimValues[i] = pEngine->ControllerTable[16];  
                     break;  
                 case ::gig::dimension_genpurpose2:  
                     DimValues[i] = pEngine->ControllerTable[17];  
                     break;  
                 case ::gig::dimension_genpurpose3:  
                     DimValues[i] = pEngine->ControllerTable[18];  
                     break;  
                 case ::gig::dimension_genpurpose4:  
                     DimValues[i] = pEngine->ControllerTable[19];  
                     break;  
                 case ::gig::dimension_sustainpedal:  
                     DimValues[i] = pEngine->ControllerTable[64];  
                     break;  
                 case ::gig::dimension_portamento:  
                     DimValues[i] = pEngine->ControllerTable[65];  
                     break;  
                 case ::gig::dimension_sostenutopedal:  
                     DimValues[i] = pEngine->ControllerTable[66];  
                     break;  
                 case ::gig::dimension_softpedal:  
                     DimValues[i] = pEngine->ControllerTable[67];  
                     break;  
                 case ::gig::dimension_genpurpose5:  
                     DimValues[i] = pEngine->ControllerTable[80];  
                     break;  
                 case ::gig::dimension_genpurpose6:  
                     DimValues[i] = pEngine->ControllerTable[81];  
                     break;  
                 case ::gig::dimension_genpurpose7:  
                     DimValues[i] = pEngine->ControllerTable[82];  
                     break;  
                 case ::gig::dimension_genpurpose8:  
                     DimValues[i] = pEngine->ControllerTable[83];  
                     break;  
                 case ::gig::dimension_effect1depth:  
                     DimValues[i] = pEngine->ControllerTable[91];  
                     break;  
                 case ::gig::dimension_effect2depth:  
                     DimValues[i] = pEngine->ControllerTable[92];  
                     break;  
                 case ::gig::dimension_effect3depth:  
                     DimValues[i] = pEngine->ControllerTable[93];  
                     break;  
                 case ::gig::dimension_effect4depth:  
                     DimValues[i] = pEngine->ControllerTable[94];  
                     break;  
                 case ::gig::dimension_effect5depth:  
                     DimValues[i] = pEngine->ControllerTable[95];  
                     break;  
                 case ::gig::dimension_none:  
                     std::cerr << "gig::Voice::Trigger() Error: dimension=none\n" << std::flush;  
                     break;  
                 default:  
                     std::cerr << "gig::Voice::Trigger() Error: Unknown dimension\n" << std::flush;  
             }  
         }  
         pDimRgn = pRegion->GetDimensionRegionByValue(DimValues[4],DimValues[3],DimValues[2],DimValues[1],DimValues[0]);  
122    
123          // get starting crossfade volume level          // get starting crossfade volume level
124            float crossfadeVolume;
125          switch (pDimRgn->AttenuationController.type) {          switch (pDimRgn->AttenuationController.type) {
126              case ::gig::attenuation_ctrl_t::type_channelaftertouch:              case ::gig::attenuation_ctrl_t::type_channelaftertouch:
127                  CrossfadeVolume = 1.0f; //TODO: aftertouch not supported yet                  crossfadeVolume = 1.0f; //TODO: aftertouch not supported yet
128                  break;                  break;
129              case ::gig::attenuation_ctrl_t::type_velocity:              case ::gig::attenuation_ctrl_t::type_velocity:
130                  CrossfadeVolume = CrossfadeAttenuation(pNoteOnEvent->Velocity);                  crossfadeVolume = Engine::CrossfadeCurve[CrossfadeAttenuation(itNoteOnEvent->Param.Note.Velocity)];
131                  break;                  break;
132              case ::gig::attenuation_ctrl_t::type_controlchange: //FIXME: currently not sample accurate              case ::gig::attenuation_ctrl_t::type_controlchange: //FIXME: currently not sample accurate
133                  CrossfadeVolume = CrossfadeAttenuation(pEngine->ControllerTable[pDimRgn->AttenuationController.controller_number]);                  crossfadeVolume = Engine::CrossfadeCurve[CrossfadeAttenuation(pEngineChannel->ControllerTable[pDimRgn->AttenuationController.controller_number])];
134                  break;                  break;
135              case ::gig::attenuation_ctrl_t::type_none: // no crossfade defined              case ::gig::attenuation_ctrl_t::type_none: // no crossfade defined
136              default:              default:
137                  CrossfadeVolume = 1.0f;                  crossfadeVolume = 1.0f;
138          }          }
139    
140          pSample = pDimRgn->pSample; // sample won't change until the voice is finished          VolumeLeft  = volume * Engine::PanCurve[64 - pDimRgn->Pan];
141            VolumeRight = volume * Engine::PanCurve[64 + pDimRgn->Pan];
142    
143            float subfragmentRate = pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE;
144            CrossfadeSmoother.trigger(crossfadeVolume, subfragmentRate);
145            VolumeSmoother.trigger(pEngineChannel->GlobalVolume, subfragmentRate);
146            PanLeftSmoother.trigger(pEngineChannel->GlobalPanLeft, subfragmentRate);
147            PanRightSmoother.trigger(pEngineChannel->GlobalPanRight, subfragmentRate);
148    
149          Pos = pDimRgn->SampleStartOffset; // offset where we should start playback of sample (0 - 2000 sample points)          finalSynthesisParameters.dPos = pDimRgn->SampleStartOffset; // offset where we should start playback of sample (0 - 2000 sample points)
150            Pos = pDimRgn->SampleStartOffset;
151    
152          // 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
153          long cachedsamples = pSample->GetCache().Size / pSample->FrameSize;          long cachedsamples = pSample->GetCache().Size / pSample->FrameSize;
154          DiskVoice          = cachedsamples < pSample->SamplesTotal;          DiskVoice          = cachedsamples < pSample->SamplesTotal;
155    
156          if (DiskVoice) { // voice to be streamed from disk          if (DiskVoice) { // voice to be streamed from disk
157              MaxRAMPos = cachedsamples - (pEngine->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)
158    
159              // 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
160              if (pSample->Loops && pSample->LoopEnd <= MaxRAMPos) {              RAMLoop = (pSample->Loops && pSample->LoopEnd <= MaxRAMPos);
                 RAMLoop        = true;  
                 LoopCyclesLeft = pSample->LoopPlayCount;  
             }  
             else RAMLoop = false;  
161    
162              if (pDiskThread->OrderNewStream(&DiskStreamRef, pSample, MaxRAMPos, !RAMLoop) < 0) {              if (pDiskThread->OrderNewStream(&DiskStreamRef, pSample, MaxRAMPos, !RAMLoop) < 0) {
163                  dmsg(1,("Disk stream order failed!\n"));                  dmsg(1,("Disk stream order failed!\n"));
164                  Kill();                  KillImmediately();
165                  return -1;                  return -1;
166              }              }
167              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"));
168          }          }
169          else { // RAM only voice          else { // RAM only voice
170              MaxRAMPos = cachedsamples;              MaxRAMPos = cachedsamples;
171              if (pSample->Loops) {              RAMLoop = (pSample->Loops != 0);
                 RAMLoop        = true;  
                 LoopCyclesLeft = pSample->LoopPlayCount;  
             }  
             else RAMLoop = false;  
172              dmsg(4,("RAM only voice launched (Looping: %s)\n", (RAMLoop) ? "yes" : "no"));              dmsg(4,("RAM only voice launched (Looping: %s)\n", (RAMLoop) ? "yes" : "no"));
173          }          }
174            if (RAMLoop) {
175                loop.uiTotalCycles = pSample->LoopPlayCount;
176                loop.uiCyclesLeft  = pSample->LoopPlayCount;
177                loop.uiStart       = pSample->LoopStart;
178                loop.uiEnd         = pSample->LoopEnd;
179                loop.uiSize        = pSample->LoopSize;
180            }
181    
182          // calculate initial pitch value          // calculate initial pitch value
183          {          {
184              double pitchbasecents = pDimRgn->FineTune * 10;              double pitchbasecents = pDimRgn->FineTune + (int) pEngine->ScaleTuning[MIDIKey % 12];
185              if (pDimRgn->PitchTrack) pitchbasecents += (MIDIKey - (int) pDimRgn->UnityNote) * 100;              if (pDimRgn->PitchTrack) pitchbasecents += (MIDIKey - (int) pDimRgn->UnityNote) * 100;
186              this->PitchBase = RTMath::CentsToFreqRatio(pitchbasecents) * (double(pSample->SamplesPerSecond) / double(pEngine->pAudioOutputDevice->SampleRate()));              this->PitchBase = RTMath::CentsToFreqRatio(pitchbasecents) * (double(pSample->SamplesPerSecond) / double(pEngine->SampleRate));
187              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
188          }          }
189    
190            // the length of the decay and release curves are dependent on the velocity
191          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);
   
192    
193          // setup EG 1 (VCA EG)          // setup EG 1 (VCA EG)
194          {          {
# Line 310  namespace LinuxSampler { namespace gig { Line 202  namespace LinuxSampler { namespace gig {
202                      eg1controllervalue = 0; // TODO: aftertouch not yet supported                      eg1controllervalue = 0; // TODO: aftertouch not yet supported
203                      break;                      break;
204                  case ::gig::eg1_ctrl_t::type_velocity:                  case ::gig::eg1_ctrl_t::type_velocity:
205                      eg1controllervalue = pNoteOnEvent->Velocity;                      eg1controllervalue = itNoteOnEvent->Param.Note.Velocity;
206                      break;                      break;
207                  case ::gig::eg1_ctrl_t::type_controlchange: // MIDI control change controller                  case ::gig::eg1_ctrl_t::type_controlchange: // MIDI control change controller
208                      eg1controllervalue = pEngine->ControllerTable[pDimRgn->EG1Controller.controller_number];                      eg1controllervalue = pEngineChannel->ControllerTable[pDimRgn->EG1Controller.controller_number];
209                      break;                      break;
210              }              }
211              if (pDimRgn->EG1ControllerInvert) eg1controllervalue = 127 - eg1controllervalue;              if (pDimRgn->EG1ControllerInvert) eg1controllervalue = 127 - eg1controllervalue;
212    
213              // calculate influence of EG1 controller on EG1's parameters (TODO: needs to be fine tuned)              // calculate influence of EG1 controller on EG1's parameters
214              double eg1attack  = (pDimRgn->EG1ControllerAttackInfluence)  ? 0.0001 * (double) (1 << pDimRgn->EG1ControllerAttackInfluence)  * eg1controllervalue : 0.0;              // (eg1attack is different from the others)
215              double eg1decay   = (pDimRgn->EG1ControllerDecayInfluence)   ? 0.0001 * (double) (1 << pDimRgn->EG1ControllerDecayInfluence)   * eg1controllervalue : 0.0;              double eg1attack  = (pDimRgn->EG1ControllerAttackInfluence)  ?
216              double eg1release = (pDimRgn->EG1ControllerReleaseInfluence) ? 0.0001 * (double) (1 << pDimRgn->EG1ControllerReleaseInfluence) * eg1controllervalue : 0.0;                  1 + 0.031 * (double) (pDimRgn->EG1ControllerAttackInfluence == 1 ?
217                                          1 : 1 << pDimRgn->EG1ControllerAttackInfluence) * eg1controllervalue : 1.0;
218              pEG1->Trigger(pDimRgn->EG1PreAttack,              double eg1decay   = (pDimRgn->EG1ControllerDecayInfluence)   ? 1 + 0.00775 * (double) (1 << pDimRgn->EG1ControllerDecayInfluence)   * eg1controllervalue : 1.0;
219                            pDimRgn->EG1Attack + eg1attack,              double eg1release = (pDimRgn->EG1ControllerReleaseInfluence) ? 1 + 0.00775 * (double) (1 << pDimRgn->EG1ControllerReleaseInfluence) * eg1controllervalue : 1.0;
220                            pDimRgn->EG1Hold,  
221                            pSample->LoopStart,              EG1.trigger(pDimRgn->EG1PreAttack,
222                            pDimRgn->EG1Decay1 + eg1decay,                          pDimRgn->EG1Attack * eg1attack,
223                            pDimRgn->EG1Decay2 + eg1decay,                          pDimRgn->EG1Hold,
224                            pDimRgn->EG1InfiniteSustain,                          pDimRgn->EG1Decay1 * eg1decay * velrelease,
225                            pDimRgn->EG1Sustain,                          pDimRgn->EG1Decay2 * eg1decay * velrelease,
226                            pDimRgn->EG1Release + eg1release,                          pDimRgn->EG1InfiniteSustain,
227                            Delay);                          pDimRgn->EG1Sustain,
228          }                          pDimRgn->EG1Release * eg1release * velrelease,
229                            velocityAttenuation,
230                            pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
231            }
232    
233    #ifdef CONFIG_INTERPOLATE_VOLUME
234            // setup initial volume in synthesis parameters
235    #ifdef CONFIG_PROCESS_MUTED_CHANNELS
236            if (pEngineChannel->GetMute()) {
237                finalSynthesisParameters.fFinalVolumeLeft  = 0;
238                finalSynthesisParameters.fFinalVolumeRight = 0;
239            }
240            else
241    #else
242            {
243                float finalVolume = pEngineChannel->GlobalVolume * crossfadeVolume * EG1.getLevel();
244    
245                finalSynthesisParameters.fFinalVolumeLeft  = finalVolume * VolumeLeft  * pEngineChannel->GlobalPanLeft;
246                finalSynthesisParameters.fFinalVolumeRight = finalVolume * VolumeRight * pEngineChannel->GlobalPanRight;
247            }
248    #endif
249    #endif
250    
     #if ENABLE_FILTER  
251          // setup EG 2 (VCF Cutoff EG)          // setup EG 2 (VCF Cutoff EG)
252          {          {
253              // get current value of EG2 controller              // get current value of EG2 controller
# Line 349  namespace LinuxSampler { namespace gig { Line 260  namespace LinuxSampler { namespace gig {
260                      eg2controllervalue = 0; // TODO: aftertouch not yet supported                      eg2controllervalue = 0; // TODO: aftertouch not yet supported
261                      break;                      break;
262                  case ::gig::eg2_ctrl_t::type_velocity:                  case ::gig::eg2_ctrl_t::type_velocity:
263                      eg2controllervalue = pNoteOnEvent->Velocity;                      eg2controllervalue = itNoteOnEvent->Param.Note.Velocity;
264                      break;                      break;
265                  case ::gig::eg2_ctrl_t::type_controlchange: // MIDI control change controller                  case ::gig::eg2_ctrl_t::type_controlchange: // MIDI control change controller
266                      eg2controllervalue = pEngine->ControllerTable[pDimRgn->EG2Controller.controller_number];                      eg2controllervalue = pEngineChannel->ControllerTable[pDimRgn->EG2Controller.controller_number];
267                      break;                      break;
268              }              }
269              if (pDimRgn->EG2ControllerInvert) eg2controllervalue = 127 - eg2controllervalue;              if (pDimRgn->EG2ControllerInvert) eg2controllervalue = 127 - eg2controllervalue;
270    
271              // calculate influence of EG2 controller on EG2's parameters (TODO: needs to be fine tuned)              // calculate influence of EG2 controller on EG2's parameters
272              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;
273              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;
274              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;
275    
276              pEG2->Trigger(pDimRgn->EG2PreAttack,              EG2.trigger(pDimRgn->EG2PreAttack,
277                            pDimRgn->EG2Attack + eg2attack,                          pDimRgn->EG2Attack * eg2attack,
278                            false,                          false,
279                            pSample->LoopStart,                          pDimRgn->EG2Decay1 * eg2decay * velrelease,
280                            pDimRgn->EG2Decay1 + eg2decay,                          pDimRgn->EG2Decay2 * eg2decay * velrelease,
281                            pDimRgn->EG2Decay2 + eg2decay,                          pDimRgn->EG2InfiniteSustain,
282                            pDimRgn->EG2InfiniteSustain,                          pDimRgn->EG2Sustain,
283                            pDimRgn->EG2Sustain,                          pDimRgn->EG2Release * eg2release * velrelease,
284                            pDimRgn->EG2Release + eg2release,                          velocityAttenuation,
285                            Delay);                          pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
286          }          }
     #endif // ENABLE_FILTER  
287    
288    
289          // setup EG 3 (VCO EG)          // setup EG 3 (VCO EG)
290          {          {
291            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
292            pEG3->Trigger(eg3depth, pDimRgn->EG3Attack, Delay);              bool  bPortamento = pEngineChannel->PortamentoMode && pEngineChannel->PortamentoPos >= 0.0f;
293                float eg3depth = (bPortamento)
294                                     ? RTMath::CentsToFreqRatio((pEngineChannel->PortamentoPos - (float) MIDIKey) * 100)
295                                     : RTMath::CentsToFreqRatio(pDimRgn->EG3Depth);
296                float eg3time = (bPortamento)
297                                    ? pEngineChannel->PortamentoTime
298                                    : pDimRgn->EG3Attack;
299                EG3.trigger(eg3depth, eg3time, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
300                dmsg(5,("PortamentoPos=%f, depth=%f, time=%f\n", pEngineChannel->PortamentoPos, eg3depth, eg3time));
301          }          }
302    
303    
# Line 390  namespace LinuxSampler { namespace gig { Line 308  namespace LinuxSampler { namespace gig {
308                  case ::gig::lfo1_ctrl_internal:                  case ::gig::lfo1_ctrl_internal:
309                      lfo1_internal_depth  = pDimRgn->LFO1InternalDepth;                      lfo1_internal_depth  = pDimRgn->LFO1InternalDepth;
310                      pLFO1->ExtController = 0; // no external controller                      pLFO1->ExtController = 0; // no external controller
311                        bLFO1Enabled         = (lfo1_internal_depth > 0);
312                      break;                      break;
313                  case ::gig::lfo1_ctrl_modwheel:                  case ::gig::lfo1_ctrl_modwheel:
314                      lfo1_internal_depth  = 0;                      lfo1_internal_depth  = 0;
315                      pLFO1->ExtController = 1; // MIDI controller 1                      pLFO1->ExtController = 1; // MIDI controller 1
316                        bLFO1Enabled         = (pDimRgn->LFO1ControlDepth > 0);
317                      break;                      break;
318                  case ::gig::lfo1_ctrl_breath:                  case ::gig::lfo1_ctrl_breath:
319                      lfo1_internal_depth  = 0;                      lfo1_internal_depth  = 0;
320                      pLFO1->ExtController = 2; // MIDI controller 2                      pLFO1->ExtController = 2; // MIDI controller 2
321                        bLFO1Enabled         = (pDimRgn->LFO1ControlDepth > 0);
322                      break;                      break;
323                  case ::gig::lfo1_ctrl_internal_modwheel:                  case ::gig::lfo1_ctrl_internal_modwheel:
324                      lfo1_internal_depth  = pDimRgn->LFO1InternalDepth;                      lfo1_internal_depth  = pDimRgn->LFO1InternalDepth;
325                      pLFO1->ExtController = 1; // MIDI controller 1                      pLFO1->ExtController = 1; // MIDI controller 1
326                        bLFO1Enabled         = (lfo1_internal_depth > 0 || pDimRgn->LFO1ControlDepth > 0);
327                      break;                      break;
328                  case ::gig::lfo1_ctrl_internal_breath:                  case ::gig::lfo1_ctrl_internal_breath:
329                      lfo1_internal_depth  = pDimRgn->LFO1InternalDepth;                      lfo1_internal_depth  = pDimRgn->LFO1InternalDepth;
330                      pLFO1->ExtController = 2; // MIDI controller 2                      pLFO1->ExtController = 2; // MIDI controller 2
331                        bLFO1Enabled         = (lfo1_internal_depth > 0 || pDimRgn->LFO1ControlDepth > 0);
332                      break;                      break;
333                  default:                  default:
334                      lfo1_internal_depth  = 0;                      lfo1_internal_depth  = 0;
335                      pLFO1->ExtController = 0; // no external controller                      pLFO1->ExtController = 0; // no external controller
336                        bLFO1Enabled         = false;
337                }
338                if (bLFO1Enabled) {
339                    pLFO1->trigger(pDimRgn->LFO1Frequency,
340                                   start_level_max,
341                                   lfo1_internal_depth,
342                                   pDimRgn->LFO1ControlDepth,
343                                   pDimRgn->LFO1FlipPhase,
344                                   pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
345                    pLFO1->update(pLFO1->ExtController ? pEngineChannel->ControllerTable[pLFO1->ExtController] : 0);
346              }              }
             pLFO1->Trigger(pDimRgn->LFO1Frequency,  
                           lfo1_internal_depth,  
                           pDimRgn->LFO1ControlDepth,  
                           pEngine->ControllerTable[pLFO1->ExtController],  
                           pDimRgn->LFO1FlipPhase,  
                           pEngine->SampleRate,  
                           Delay);  
347          }          }
348    
349      #if ENABLE_FILTER  
350          // setup LFO 2 (VCF Cutoff LFO)          // setup LFO 2 (VCF Cutoff LFO)
351          {          {
352              uint16_t lfo2_internal_depth;              uint16_t lfo2_internal_depth;
# Line 428  namespace LinuxSampler { namespace gig { Line 354  namespace LinuxSampler { namespace gig {
354                  case ::gig::lfo2_ctrl_internal:                  case ::gig::lfo2_ctrl_internal:
355                      lfo2_internal_depth  = pDimRgn->LFO2InternalDepth;                      lfo2_internal_depth  = pDimRgn->LFO2InternalDepth;
356                      pLFO2->ExtController = 0; // no external controller                      pLFO2->ExtController = 0; // no external controller
357                        bLFO2Enabled         = (lfo2_internal_depth > 0);
358                      break;                      break;
359                  case ::gig::lfo2_ctrl_modwheel:                  case ::gig::lfo2_ctrl_modwheel:
360                      lfo2_internal_depth  = 0;                      lfo2_internal_depth  = 0;
361                      pLFO2->ExtController = 1; // MIDI controller 1                      pLFO2->ExtController = 1; // MIDI controller 1
362                        bLFO2Enabled         = (pDimRgn->LFO2ControlDepth > 0);
363                      break;                      break;
364                  case ::gig::lfo2_ctrl_foot:                  case ::gig::lfo2_ctrl_foot:
365                      lfo2_internal_depth  = 0;                      lfo2_internal_depth  = 0;
366                      pLFO2->ExtController = 4; // MIDI controller 4                      pLFO2->ExtController = 4; // MIDI controller 4
367                        bLFO2Enabled         = (pDimRgn->LFO2ControlDepth > 0);
368                      break;                      break;
369                  case ::gig::lfo2_ctrl_internal_modwheel:                  case ::gig::lfo2_ctrl_internal_modwheel:
370                      lfo2_internal_depth  = pDimRgn->LFO2InternalDepth;                      lfo2_internal_depth  = pDimRgn->LFO2InternalDepth;
371                      pLFO2->ExtController = 1; // MIDI controller 1                      pLFO2->ExtController = 1; // MIDI controller 1
372                        bLFO2Enabled         = (lfo2_internal_depth > 0 || pDimRgn->LFO2ControlDepth > 0);
373                      break;                      break;
374                  case ::gig::lfo2_ctrl_internal_foot:                  case ::gig::lfo2_ctrl_internal_foot:
375                      lfo2_internal_depth  = pDimRgn->LFO2InternalDepth;                      lfo2_internal_depth  = pDimRgn->LFO2InternalDepth;
376                      pLFO2->ExtController = 4; // MIDI controller 4                      pLFO2->ExtController = 4; // MIDI controller 4
377                        bLFO2Enabled         = (lfo2_internal_depth > 0 || pDimRgn->LFO2ControlDepth > 0);
378                      break;                      break;
379                  default:                  default:
380                      lfo2_internal_depth  = 0;                      lfo2_internal_depth  = 0;
381                      pLFO2->ExtController = 0; // no external controller                      pLFO2->ExtController = 0; // no external controller
382                        bLFO2Enabled         = false;
383                }
384                if (bLFO2Enabled) {
385                    pLFO2->trigger(pDimRgn->LFO2Frequency,
386                                   start_level_max,
387                                   lfo2_internal_depth,
388                                   pDimRgn->LFO2ControlDepth,
389                                   pDimRgn->LFO2FlipPhase,
390                                   pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
391                    pLFO2->update(pLFO2->ExtController ? pEngineChannel->ControllerTable[pLFO2->ExtController] : 0);
392              }              }
             pLFO2->Trigger(pDimRgn->LFO2Frequency,  
                           lfo2_internal_depth,  
                           pDimRgn->LFO2ControlDepth,  
                           pEngine->ControllerTable[pLFO2->ExtController],  
                           pDimRgn->LFO2FlipPhase,  
                           pEngine->SampleRate,  
                           Delay);  
393          }          }
394      #endif // ENABLE_FILTER  
395    
396          // setup LFO 3 (VCO LFO)          // setup LFO 3 (VCO LFO)
397          {          {
# Line 466  namespace LinuxSampler { namespace gig { Line 400  namespace LinuxSampler { namespace gig {
400                  case ::gig::lfo3_ctrl_internal:                  case ::gig::lfo3_ctrl_internal:
401                      lfo3_internal_depth  = pDimRgn->LFO3InternalDepth;                      lfo3_internal_depth  = pDimRgn->LFO3InternalDepth;
402                      pLFO3->ExtController = 0; // no external controller                      pLFO3->ExtController = 0; // no external controller
403                        bLFO3Enabled         = (lfo3_internal_depth > 0);
404                      break;                      break;
405                  case ::gig::lfo3_ctrl_modwheel:                  case ::gig::lfo3_ctrl_modwheel:
406                      lfo3_internal_depth  = 0;                      lfo3_internal_depth  = 0;
407                      pLFO3->ExtController = 1; // MIDI controller 1                      pLFO3->ExtController = 1; // MIDI controller 1
408                        bLFO3Enabled         = (pDimRgn->LFO3ControlDepth > 0);
409                      break;                      break;
410                  case ::gig::lfo3_ctrl_aftertouch:                  case ::gig::lfo3_ctrl_aftertouch:
411                      lfo3_internal_depth  = 0;                      lfo3_internal_depth  = 0;
412                      pLFO3->ExtController = 0; // TODO: aftertouch not implemented yet                      pLFO3->ExtController = 0; // TODO: aftertouch not implemented yet
413                        bLFO3Enabled         = false; // see TODO comment in line above
414                      break;                      break;
415                  case ::gig::lfo3_ctrl_internal_modwheel:                  case ::gig::lfo3_ctrl_internal_modwheel:
416                      lfo3_internal_depth  = pDimRgn->LFO3InternalDepth;                      lfo3_internal_depth  = pDimRgn->LFO3InternalDepth;
417                      pLFO3->ExtController = 1; // MIDI controller 1                      pLFO3->ExtController = 1; // MIDI controller 1
418                        bLFO3Enabled         = (lfo3_internal_depth > 0 || pDimRgn->LFO3ControlDepth > 0);
419                      break;                      break;
420                  case ::gig::lfo3_ctrl_internal_aftertouch:                  case ::gig::lfo3_ctrl_internal_aftertouch:
421                      lfo3_internal_depth  = pDimRgn->LFO3InternalDepth;                      lfo3_internal_depth  = pDimRgn->LFO3InternalDepth;
422                      pLFO1->ExtController = 0; // TODO: aftertouch not implemented yet                      pLFO1->ExtController = 0; // TODO: aftertouch not implemented yet
423                        bLFO3Enabled         = (lfo3_internal_depth > 0 /*|| pDimRgn->LFO3ControlDepth > 0*/); // see TODO comment in line above
424                      break;                      break;
425                  default:                  default:
426                      lfo3_internal_depth  = 0;                      lfo3_internal_depth  = 0;
427                      pLFO3->ExtController = 0; // no external controller                      pLFO3->ExtController = 0; // no external controller
428                        bLFO3Enabled         = false;
429                }
430                if (bLFO3Enabled) {
431                    pLFO3->trigger(pDimRgn->LFO3Frequency,
432                                   start_level_mid,
433                                   lfo3_internal_depth,
434                                   pDimRgn->LFO3ControlDepth,
435                                   false,
436                                   pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
437                    pLFO3->update(pLFO3->ExtController ? pEngineChannel->ControllerTable[pLFO3->ExtController] : 0);
438              }              }
             pLFO3->Trigger(pDimRgn->LFO3Frequency,  
                           lfo3_internal_depth,  
                           pDimRgn->LFO3ControlDepth,  
                           pEngine->ControllerTable[pLFO3->ExtController],  
                           false,  
                           pEngine->SampleRate,  
                           Delay);  
439          }          }
440    
441      #if ENABLE_FILTER  
442          #if FORCE_FILTER_USAGE          #if CONFIG_FORCE_FILTER
443          FilterLeft.Enabled = FilterRight.Enabled = true;          const bool bUseFilter = true;
444          #else // use filter only if instrument file told so          #else // use filter only if instrument file told so
445          FilterLeft.Enabled = FilterRight.Enabled = pDimRgn->VCFEnabled;          const bool bUseFilter = pDimRgn->VCFEnabled;
446          #endif // FORCE_FILTER_USAGE          #endif // CONFIG_FORCE_FILTER
447          if (pDimRgn->VCFEnabled) {          SYNTHESIS_MODE_SET_FILTER(SynthesisMode, bUseFilter);
448              #ifdef OVERRIDE_FILTER_CUTOFF_CTRL          if (bUseFilter) {
449              VCFCutoffCtrl.controller = OVERRIDE_FILTER_CUTOFF_CTRL;              #ifdef CONFIG_OVERRIDE_CUTOFF_CTRL
450                VCFCutoffCtrl.controller = CONFIG_OVERRIDE_CUTOFF_CTRL;
451              #else // use the one defined in the instrument file              #else // use the one defined in the instrument file
452              switch (pDimRgn->VCFCutoffController) {              switch (pDimRgn->VCFCutoffController) {
453                  case ::gig::vcf_cutoff_ctrl_modwheel:                  case ::gig::vcf_cutoff_ctrl_modwheel:
# Line 540  namespace LinuxSampler { namespace gig { Line 483  namespace LinuxSampler { namespace gig {
483                      VCFCutoffCtrl.controller = 0;                      VCFCutoffCtrl.controller = 0;
484                      break;                      break;
485              }              }
486              #endif // OVERRIDE_FILTER_CUTOFF_CTRL              #endif // CONFIG_OVERRIDE_CUTOFF_CTRL
487    
488              #ifdef OVERRIDE_FILTER_RES_CTRL              #ifdef CONFIG_OVERRIDE_RESONANCE_CTRL
489              VCFResonanceCtrl.controller = OVERRIDE_FILTER_RES_CTRL;              VCFResonanceCtrl.controller = CONFIG_OVERRIDE_RESONANCE_CTRL;
490              #else // use the one defined in the instrument file              #else // use the one defined in the instrument file
491              switch (pDimRgn->VCFResonanceController) {              switch (pDimRgn->VCFResonanceController) {
492                  case ::gig::vcf_res_ctrl_genpurpose3:                  case ::gig::vcf_res_ctrl_genpurpose3:
# Line 562  namespace LinuxSampler { namespace gig { Line 505  namespace LinuxSampler { namespace gig {
505                  default:                  default:
506                      VCFResonanceCtrl.controller = 0;                      VCFResonanceCtrl.controller = 0;
507              }              }
508              #endif // OVERRIDE_FILTER_RES_CTRL              #endif // CONFIG_OVERRIDE_RESONANCE_CTRL
509    
510              #ifndef OVERRIDE_FILTER_TYPE              #ifndef CONFIG_OVERRIDE_FILTER_TYPE
511              FilterLeft.SetType(pDimRgn->VCFType);              finalSynthesisParameters.filterLeft.SetType(pDimRgn->VCFType);
512              FilterRight.SetType(pDimRgn->VCFType);              finalSynthesisParameters.filterRight.SetType(pDimRgn->VCFType);
513              #else // override filter type              #else // override filter type
514              FilterLeft.SetType(OVERRIDE_FILTER_TYPE);              FilterLeft.SetType(CONFIG_OVERRIDE_FILTER_TYPE);
515              FilterRight.SetType(OVERRIDE_FILTER_TYPE);              FilterRight.SetType(CONFIG_OVERRIDE_FILTER_TYPE);
516              #endif // OVERRIDE_FILTER_TYPE              #endif // CONFIG_OVERRIDE_FILTER_TYPE
517    
518              VCFCutoffCtrl.value    = pEngine->ControllerTable[VCFCutoffCtrl.controller];              VCFCutoffCtrl.value    = pEngineChannel->ControllerTable[VCFCutoffCtrl.controller];
519              VCFResonanceCtrl.value = pEngine->ControllerTable[VCFResonanceCtrl.controller];              VCFResonanceCtrl.value = pEngineChannel->ControllerTable[VCFResonanceCtrl.controller];
520    
521              // calculate cutoff frequency              // calculate cutoff frequency
522              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  
523              if (pDimRgn->VCFKeyboardTracking) {              if (pDimRgn->VCFKeyboardTracking) {
524                  resonance += (float) (pNoteOnEvent->Key - pDimRgn->VCFKeyboardTrackingBreakpoint) * 0.00787f;                  cutoff *= exp((itNoteOnEvent->Param.Note.Key - pDimRgn->VCFKeyboardTrackingBreakpoint) * 0.057762265f); // (ln(2) / 12)
525              }              }
526              Constrain(resonance, 0.0, 1.0); // correct resonance if outside allowed value range (0.0..1.0)              CutoffBase = cutoff;
527    
528              VCFCutoffCtrl.fvalue    = cutoff - FILTER_CUTOFF_MIN;              int cvalue;
529              VCFResonanceCtrl.fvalue = resonance;              if (VCFCutoffCtrl.controller) {
530                    cvalue = pEngineChannel->ControllerTable[VCFCutoffCtrl.controller];
531                    if (pDimRgn->VCFCutoffControllerInvert) cvalue = 127 - cvalue;
532                    // VCFVelocityScale in this case means Minimum cutoff
533                    if (cvalue < pDimRgn->VCFVelocityScale) cvalue = pDimRgn->VCFVelocityScale;
534                }
535                else {
536                    cvalue = pDimRgn->VCFCutoff;
537                }
538                cutoff *= float(cvalue) * 0.00787402f; // (1 / 127)
539                if (cutoff > 1.0) cutoff = 1.0;
540                cutoff = (cutoff < 0.5 ? cutoff * 4826 - 1 : cutoff * 5715 - 449);
541                if (cutoff < 1.0) cutoff = 1.0;
542    
543              FilterLeft.SetParameters(cutoff,  resonance, pEngine->SampleRate);              // calculate resonance
544              FilterRight.SetParameters(cutoff, resonance, pEngine->SampleRate);              float resonance = (float) (VCFResonanceCtrl.controller ? VCFResonanceCtrl.value : pDimRgn->VCFResonance) * 0.00787f; // 0.0..1.0
545    
546              FilterUpdateCounter = -1;              VCFCutoffCtrl.fvalue    = cutoff - 1.0;
547                VCFResonanceCtrl.fvalue = resonance;
548          }          }
549          else {          else {
550              VCFCutoffCtrl.controller    = 0;              VCFCutoffCtrl.controller    = 0;
551              VCFResonanceCtrl.controller = 0;              VCFResonanceCtrl.controller = 0;
552          }          }
     #endif // ENABLE_FILTER  
   
         // ************************************************  
         // TODO: ARTICULATION DATA HANDLING IS MISSING HERE  
         // ************************************************  
553    
554          return 0; // success          return 0; // success
555      }      }
# Line 621  namespace LinuxSampler { namespace gig { Line 567  namespace LinuxSampler { namespace gig {
567       */       */
568      void Voice::Render(uint Samples) {      void Voice::Render(uint Samples) {
569    
570          // Reset the synthesis parameter matrix          // select default values for synthesis mode bits
571          pEngine->ResetSynthesisParameters(Event::destination_vca, this->Volume * this->CrossfadeVolume * pEngine->GlobalVolume);          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);  
   
   
     #if ENABLE_FILTER  
         CalculateBiquadParameters(Samples); // calculate the final biquad filter parameters  
     #endif // ENABLE_FILTER  
   
572    
573          switch (this->PlaybackState) {          switch (this->PlaybackState) {
574    
575                case playback_state_init:
576                    this->PlaybackState = playback_state_ram; // we always start playback from RAM cache and switch then to disk if needed
577                    // no break - continue with playback_state_ram
578    
579              case playback_state_ram: {              case playback_state_ram: {
580                      if (RAMLoop) InterpolateAndLoop(Samples, (sample_t*) pSample->GetCache().pStart, Delay);                      if (RAMLoop) SYNTHESIS_MODE_SET_LOOP(SynthesisMode, true); // enable looping
581                      else         Interpolate(Samples, (sample_t*) pSample->GetCache().pStart, Delay);  
582                        // render current fragment
583                        Synthesize(Samples, (sample_t*) pSample->GetCache().pStart, Delay);
584    
585                      if (DiskVoice) {                      if (DiskVoice) {
586                          // check if we reached the allowed limit of the sample RAM cache                          // check if we reached the allowed limit of the sample RAM cache
587                          if (Pos > MaxRAMPos) {                          if (finalSynthesisParameters.dPos > MaxRAMPos) {
588                              dmsg(5,("Voice: switching to disk playback (Pos=%f)\n", Pos));                              dmsg(5,("Voice: switching to disk playback (Pos=%f)\n", finalSynthesisParameters.dPos));
589                              this->PlaybackState = playback_state_disk;                              this->PlaybackState = playback_state_disk;
590                          }                          }
591                      }                      } else if (finalSynthesisParameters.dPos >= pSample->GetCache().Size / pSample->FrameSize) {
                     else if (Pos >= pSample->GetCache().Size / pSample->FrameSize) {  
592                          this->PlaybackState = playback_state_end;                          this->PlaybackState = playback_state_end;
593                      }                      }
594                  }                  }
# Line 676  namespace LinuxSampler { namespace gig { Line 600  namespace LinuxSampler { namespace gig {
600                          DiskStreamRef.pStream = pDiskThread->AskForCreatedStream(DiskStreamRef.OrderID);                          DiskStreamRef.pStream = pDiskThread->AskForCreatedStream(DiskStreamRef.OrderID);
601                          if (!DiskStreamRef.pStream) {                          if (!DiskStreamRef.pStream) {
602                              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;
603                              Kill();                              KillImmediately();
604                              return;                              return;
605                          }                          }
606                          DiskStreamRef.pStream->IncrementReadPos(pSample->Channels * (RTMath::DoubleToInt(Pos) - MaxRAMPos));                          DiskStreamRef.pStream->IncrementReadPos(pSample->Channels * (int(finalSynthesisParameters.dPos) - MaxRAMPos));
607                          Pos -= RTMath::DoubleToInt(Pos);                          finalSynthesisParameters.dPos -= int(finalSynthesisParameters.dPos);
608                            RealSampleWordsLeftToRead = -1; // -1 means no silence has been added yet
609                      }                      }
610    
611                        const int sampleWordsLeftToRead = DiskStreamRef.pStream->GetReadSpace();
612    
613                      // 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)
614                      if (DiskStreamRef.State == Stream::state_end && DiskStreamRef.pStream->GetReadSpace() < (pEngine->MaxSamplesPerCycle << MAX_PITCH) / pSample->Channels) {                      if (DiskStreamRef.State == Stream::state_end) {
615                          DiskStreamRef.pStream->WriteSilence((pEngine->MaxSamplesPerCycle << MAX_PITCH) / pSample->Channels);                          const int maxSampleWordsPerCycle = (pEngine->MaxSamplesPerCycle << CONFIG_MAX_PITCH) * pSample->Channels + 6; // +6 for the interpolator algorithm
616                          this->PlaybackState = playback_state_end;                          if (sampleWordsLeftToRead <= maxSampleWordsPerCycle) {
617                                // remember how many sample words there are before any silence has been added
618                                if (RealSampleWordsLeftToRead < 0) RealSampleWordsLeftToRead = sampleWordsLeftToRead;
619                                DiskStreamRef.pStream->WriteSilence(maxSampleWordsPerCycle - sampleWordsLeftToRead);
620                            }
621                      }                      }
622    
623                      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
624                      Interpolate(Samples, ptr, Delay);  
625                      DiskStreamRef.pStream->IncrementReadPos(RTMath::DoubleToInt(Pos) * pSample->Channels);                      // render current audio fragment
626                      Pos -= RTMath::DoubleToInt(Pos);                      Synthesize(Samples, ptr, Delay);
627    
628                        const int iPos = (int) finalSynthesisParameters.dPos;
629                        const int readSampleWords = iPos * pSample->Channels; // amount of sample words actually been read
630                        DiskStreamRef.pStream->IncrementReadPos(readSampleWords);
631                        finalSynthesisParameters.dPos -= iPos; // just keep fractional part of playback position
632    
633                        // change state of voice to 'end' if we really reached the end of the sample data
634                        if (RealSampleWordsLeftToRead >= 0) {
635                            RealSampleWordsLeftToRead -= readSampleWords;
636                            if (RealSampleWordsLeftToRead <= 0) this->PlaybackState = playback_state_end;
637                        }
638                  }                  }
639                  break;                  break;
640    
641              case playback_state_end:              case playback_state_end:
642                  Kill(); // free voice                  std::cerr << "gig::Voice::Render(): entered with playback_state_end, this is a bug!\n" << std::flush;
643                  break;                  break;
644          }          }
645    
   
         // Reset synthesis event lists (except VCO, as VCO events apply channel wide currently)  
         pEngine->pSynthesisEvents[Event::destination_vca]->clear();  
     #if ENABLE_FILTER  
         pEngine->pSynthesisEvents[Event::destination_vcfc]->clear();  
         pEngine->pSynthesisEvents[Event::destination_vcfr]->clear();  
     #endif // ENABLE_FILTER  
   
646          // Reset delay          // Reset delay
647          Delay = 0;          Delay = 0;
648    
649          pTriggerEvent = NULL;          itTriggerEvent = Pool<Event>::Iterator();
650    
651          // If release stage finished, let the voice be killed          // If sample stream or release stage finished, kill the voice
652          if (pEG1->GetStage() == EGADSR::stage_end) this->PlaybackState = playback_state_end;          if (PlaybackState == playback_state_end || EG1.getSegmentType() == EGADSR::segment_end) KillImmediately();
653      }      }
654    
655      /**      /**
# Line 723  namespace LinuxSampler { namespace gig { Line 657  namespace LinuxSampler { namespace gig {
657       *  suspended / not running.       *  suspended / not running.
658       */       */
659      void Voice::Reset() {      void Voice::Reset() {
660          pLFO1->Reset();          finalSynthesisParameters.filterLeft.Reset();
661          pLFO2->Reset();          finalSynthesisParameters.filterRight.Reset();
         pLFO3->Reset();  
662          DiskStreamRef.pStream = NULL;          DiskStreamRef.pStream = NULL;
663          DiskStreamRef.hStream = 0;          DiskStreamRef.hStream = 0;
664          DiskStreamRef.State   = Stream::state_unused;          DiskStreamRef.State   = Stream::state_unused;
665          DiskStreamRef.OrderID = 0;          DiskStreamRef.OrderID = 0;
666          Active = false;          PlaybackState = playback_state_end;
667            itTriggerEvent = Pool<Event>::Iterator();
668            itKillEvent    = Pool<Event>::Iterator();
669      }      }
670    
671      /**      /**
672       *  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
673       *  audio fragment. Event values will be applied to the synthesis parameter       * for the given time.
      *  matrix.  
674       *       *
675       *  @param Samples - number of samples to be rendered in this audio fragment cycle       * @param itEvent - iterator pointing to the next event to be processed
676         * @param End     - youngest time stamp where processing should be stopped
677       */       */
678      void Voice::ProcessEvents(uint Samples) {      void Voice::processTransitionEvents(RTList<Event>::Iterator& itEvent, uint End) {
679            for (; itEvent && itEvent->FragmentPos() <= End; ++itEvent) {
680                if (itEvent->Type == Event::type_release) {
681                    EG1.update(EGADSR::event_release, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
682                    EG2.update(EGADSR::event_release, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
683                } else if (itEvent->Type == Event::type_cancel_release) {
684                    EG1.update(EGADSR::event_cancel_release, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
685                    EG2.update(EGADSR::event_cancel_release, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
686                }
687            }
688        }
689    
690          // dispatch control change events      /**
691          Event* pCCEvent = pEngine->pCCEvents->first();       * Process given list of MIDI control change and pitch bend events for
692          if (Delay) { // skip events that happened before this voice was triggered       * the given time.
693              while (pCCEvent && pCCEvent->FragmentPos() <= Delay) pCCEvent = pEngine->pCCEvents->next();       *
694          }       * @param itEvent - iterator pointing to the next event to be processed
695          while (pCCEvent) {       * @param End     - youngest time stamp where processing should be stopped
696              if (pCCEvent->Controller) { // if valid MIDI controller       */
697                  #if ENABLE_FILTER      void Voice::processCCEvents(RTList<Event>::Iterator& itEvent, uint End) {
698                  if (pCCEvent->Controller == VCFCutoffCtrl.controller) {          for (; itEvent && itEvent->FragmentPos() <= End; ++itEvent) {
699                      pEngine->pSynthesisEvents[Event::destination_vcfc]->alloc_assign(*pCCEvent);              if (itEvent->Type == Event::type_control_change &&
700                  }                  itEvent->Param.CC.Controller) { // if (valid) MIDI control change event
701                  if (pCCEvent->Controller == VCFResonanceCtrl.controller) {                  if (itEvent->Param.CC.Controller == VCFCutoffCtrl.controller) {
702                      pEngine->pSynthesisEvents[Event::destination_vcfr]->alloc_assign(*pCCEvent);                      processCutoffEvent(itEvent);
703                    }
704                    if (itEvent->Param.CC.Controller == VCFResonanceCtrl.controller) {
705                        processResonanceEvent(itEvent);
706                  }                  }
707                  #endif // ENABLE_FILTER                  if (itEvent->Param.CC.Controller == pLFO1->ExtController) {
708                  if (pCCEvent->Controller == pLFO1->ExtController) {                      pLFO1->update(itEvent->Param.CC.Value);
                     pLFO1->SendEvent(pCCEvent);  
709                  }                  }
710                  #if ENABLE_FILTER                  if (itEvent->Param.CC.Controller == pLFO2->ExtController) {
711                  if (pCCEvent->Controller == pLFO2->ExtController) {                      pLFO2->update(itEvent->Param.CC.Value);
                     pLFO2->SendEvent(pCCEvent);  
712                  }                  }
713                  #endif // ENABLE_FILTER                  if (itEvent->Param.CC.Controller == pLFO3->ExtController) {
714                  if (pCCEvent->Controller == pLFO3->ExtController) {                      pLFO3->update(itEvent->Param.CC.Value);
                     pLFO3->SendEvent(pCCEvent);  
715                  }                  }
716                  if (pDimRgn->AttenuationController.type == ::gig::attenuation_ctrl_t::type_controlchange &&                  if (pDimRgn->AttenuationController.type == ::gig::attenuation_ctrl_t::type_controlchange &&
717                      pCCEvent->Controller == pDimRgn->AttenuationController.controller_number) { // if crossfade event                      itEvent->Param.CC.Controller == pDimRgn->AttenuationController.controller_number) {
718                      pEngine->pSynthesisEvents[Event::destination_vca]->alloc_assign(*pCCEvent);                      CrossfadeSmoother.update(Engine::CrossfadeCurve[CrossfadeAttenuation(itEvent->Param.CC.Value)]);
719                  }                  }
720                    if (itEvent->Param.CC.Controller == 7) { // volume
721                        VolumeSmoother.update(Engine::VolumeCurve[itEvent->Param.CC.Value] * CONFIG_GLOBAL_ATTENUATION);
722                    } else if (itEvent->Param.CC.Controller == 10) { // panpot
723                        PanLeftSmoother.update(Engine::PanCurve[128 - itEvent->Param.CC.Value]);
724                        PanRightSmoother.update(Engine::PanCurve[itEvent->Param.CC.Value]);
725                    }
726                } else if (itEvent->Type == Event::type_pitchbend) { // if pitch bend event
727                    processPitchEvent(itEvent);
728              }              }
   
             pCCEvent = pEngine->pCCEvents->next();  
729          }          }
730        }
731    
732        void Voice::processPitchEvent(RTList<Event>::Iterator& itEvent) {
733            const float pitch = RTMath::CentsToFreqRatio(((double) itEvent->Param.Pitch.Pitch / 8192.0) * 200.0); // +-two semitones = +-200 cents
734            finalSynthesisParameters.fFinalPitch *= pitch;
735            PitchBend = pitch;
736        }
737    
738        void Voice::processCutoffEvent(RTList<Event>::Iterator& itEvent) {
739            int ccvalue = itEvent->Param.CC.Value;
740            if (VCFCutoffCtrl.value == ccvalue) return;
741            VCFCutoffCtrl.value == ccvalue;
742            if (pDimRgn->VCFCutoffControllerInvert)  ccvalue = 127 - ccvalue;
743            if (ccvalue < pDimRgn->VCFVelocityScale) ccvalue = pDimRgn->VCFVelocityScale;
744            float cutoff = CutoffBase * float(ccvalue) * 0.00787402f; // (1 / 127)
745            if (cutoff > 1.0) cutoff = 1.0;
746            cutoff = (cutoff < 0.5 ? cutoff * 4826 - 1 : cutoff * 5715 - 449);
747            if (cutoff < 1.0) cutoff = 1.0;
748    
749            VCFCutoffCtrl.fvalue = cutoff - 1.0; // needed for initialization of fFinalCutoff next time
750            fFinalCutoff = cutoff;
751        }
752    
753        void Voice::processResonanceEvent(RTList<Event>::Iterator& itEvent) {
754            // convert absolute controller value to differential
755            const int ctrldelta = itEvent->Param.CC.Value - VCFResonanceCtrl.value;
756            VCFResonanceCtrl.value = itEvent->Param.CC.Value;
757            const float resonancedelta = (float) ctrldelta * 0.00787f; // 0.0..1.0
758            fFinalResonance += resonancedelta;
759            // needed for initialization of parameter
760            VCFResonanceCtrl.fvalue = itEvent->Param.CC.Value * 0.00787f;
761        }
762    
763          // process pitch events      /**
764          {       *  Synthesizes the current audio fragment for this voice.
765              RTEList<Event>* pVCOEventList = pEngine->pSynthesisEvents[Event::destination_vco];       *
766              Event* pVCOEvent = pVCOEventList->first();       *  @param Samples - number of sample points to be rendered in this audio
767              if (Delay) { // skip events that happened before this voice was triggered       *                   fragment cycle
768                  while (pVCOEvent && pVCOEvent->FragmentPos() <= Delay) pVCOEvent = pVCOEventList->next();       *  @param pSrc    - pointer to input sample data
769              }       *  @param Skip    - number of sample points to skip in output buffer
770              // apply old pitchbend value until first pitch event occurs       */
771              if (this->PitchBend != 1.0) {      void Voice::Synthesize(uint Samples, sample_t* pSrc, uint Skip) {
772                  uint end = (pVCOEvent) ? pVCOEvent->FragmentPos() : Samples;          finalSynthesisParameters.pOutLeft  = &pEngineChannel->pOutputLeft[Skip];
773                  for (uint i = Delay; i < end; i++) {          finalSynthesisParameters.pOutRight = &pEngineChannel->pOutputRight[Skip];
774                      pEngine->pSynthesisParameters[Event::destination_vco][i] *= this->PitchBend;          finalSynthesisParameters.pSrc      = pSrc;
                 }  
             }  
             float pitch;  
             while (pVCOEvent) {  
                 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;  
                 }  
775    
776                  pVCOEvent = pNextVCOEvent;          RTList<Event>::Iterator itCCEvent = pEngineChannel->pEvents->first();
777              }          RTList<Event>::Iterator itNoteEvent = pEngineChannel->pMIDIKeyInfo[MIDIKey].pEvents->first();
778              if (pVCOEventList->last()) this->PitchBend = pitch;  
779            if (Skip) { // skip events that happened before this voice was triggered
780                while (itCCEvent && itCCEvent->FragmentPos() <= Skip) ++itCCEvent;
781                while (itNoteEvent && itNoteEvent->FragmentPos() <= Skip) ++itNoteEvent;
782          }          }
783    
784          // process volume / attenuation events (TODO: we only handle and _expect_ crossfade events here ATM !)          uint killPos;
785          {          if (itKillEvent) killPos = RTMath::Min(itKillEvent->FragmentPos(), pEngine->MaxFadeOutPos);
             RTEList<Event>* pVCAEventList = pEngine->pSynthesisEvents[Event::destination_vca];  
             Event* pVCAEvent = pVCAEventList->first();  
             if (Delay) { // skip events that happened before this voice was triggered  
                 while (pVCAEvent && pVCAEvent->FragmentPos() <= Delay) pVCAEvent = pVCAEventList->next();  
             }  
             float crossfadevolume;  
             while (pVCAEvent) {  
                 Event* pNextVCAEvent = pVCAEventList->next();  
786    
787                  // calculate the influence length of this event (in sample points)          uint i = Skip;
788                  uint end = (pNextVCAEvent) ? pNextVCAEvent->FragmentPos() : Samples;          while (i < Samples) {
789                int iSubFragmentEnd = RTMath::Min(i + CONFIG_DEFAULT_SUBFRAGMENT_SIZE, Samples);
790    
791                  crossfadevolume = CrossfadeAttenuation(pVCAEvent->Value);              // initialize all final synthesis parameters
792                finalSynthesisParameters.fFinalPitch = PitchBase * PitchBend;
793                fFinalCutoff    = VCFCutoffCtrl.fvalue;
794                fFinalResonance = VCFResonanceCtrl.fvalue;
795    
796                  float effective_volume = crossfadevolume * this->Volume * pEngine->GlobalVolume;              // process MIDI control change and pitchbend events for this subfragment
797                processCCEvents(itCCEvent, iSubFragmentEnd);
798    
799                  // apply volume value to the volume parameter sequence              float fFinalVolume = VolumeSmoother.render() * CrossfadeSmoother.render();
800                  for (uint i = pVCAEvent->FragmentPos(); i < end; i++) {  #ifdef CONFIG_PROCESS_MUTED_CHANNELS
801                      pEngine->pSynthesisParameters[Event::destination_vca][i] = effective_volume;              if (pEngineChannel->GetMute()) fFinalVolume = 0;
802                  }  #endif
803    
804                // process transition events (note on, note off & sustain pedal)
805                processTransitionEvents(itNoteEvent, iSubFragmentEnd);
806    
807                  pVCAEvent = pNextVCAEvent;              // if the voice was killed in this subfragment switch EG1 to fade out stage
808                if (itKillEvent && killPos <= iSubFragmentEnd) {
809                    EG1.enterFadeOutStage();
810                    itKillEvent = Pool<Event>::Iterator();
811              }              }
             if (pVCAEventList->last()) this->CrossfadeVolume = crossfadevolume;  
         }  
812    
813      #if ENABLE_FILTER              // process envelope generators
814          // process filter cutoff events              switch (EG1.getSegmentType()) {
815          {                  case EGADSR::segment_lin:
816              RTEList<Event>* pCutoffEventList = pEngine->pSynthesisEvents[Event::destination_vcfc];                      fFinalVolume *= EG1.processLin();
817              Event* pCutoffEvent = pCutoffEventList->first();                      break;
818              if (Delay) { // skip events that happened before this voice was triggered                  case EGADSR::segment_exp:
819                  while (pCutoffEvent && pCutoffEvent->FragmentPos() <= Delay) pCutoffEvent = pCutoffEventList->next();                      fFinalVolume *= EG1.processExp();
820              }                      break;
821              float cutoff;                  case EGADSR::segment_end:
822              while (pCutoffEvent) {                      fFinalVolume *= EG1.getLevel();
823                  Event* pNextCutoffEvent = pCutoffEventList->next();                      break; // noop
824                }
825                  // calculate the influence length of this event (in sample points)              switch (EG2.getSegmentType()) {
826                  uint end = (pNextCutoffEvent) ? pNextCutoffEvent->FragmentPos() : Samples;                  case EGADSR::segment_lin:
827                        fFinalCutoff *= EG2.processLin();
828                  cutoff = exp((float) pCutoffEvent->Value * 0.00787402f * FILTER_CUTOFF_COEFF) * FILTER_CUTOFF_MAX - FILTER_CUTOFF_MIN;                      break;
829                    case EGADSR::segment_exp:
830                  // apply cutoff frequency to the cutoff parameter sequence                      fFinalCutoff *= EG2.processExp();
831                  for (uint i = pCutoffEvent->FragmentPos(); i < end; i++) {                      break;
832                      pEngine->pSynthesisParameters[Event::destination_vcfc][i] = cutoff;                  case EGADSR::segment_end:
833                  }                      fFinalCutoff *= EG2.getLevel();
834                        break; // noop
835                }
836                if (EG3.active()) finalSynthesisParameters.fFinalPitch *= EG3.render();
837    
838                // process low frequency oscillators
839                if (bLFO1Enabled) fFinalVolume *= pLFO1->render();
840                if (bLFO2Enabled) fFinalCutoff *= pLFO2->render();
841                if (bLFO3Enabled) finalSynthesisParameters.fFinalPitch *= RTMath::CentsToFreqRatio(pLFO3->render());
842    
843                  pCutoffEvent = pNextCutoffEvent;              // if filter enabled then update filter coefficients
844                if (SYNTHESIS_MODE_GET_FILTER(SynthesisMode)) {
845                    finalSynthesisParameters.filterLeft.SetParameters(fFinalCutoff + 1.0, fFinalResonance, pEngine->SampleRate);
846                    finalSynthesisParameters.filterRight.SetParameters(fFinalCutoff + 1.0, fFinalResonance, pEngine->SampleRate);
847              }              }
             if (pCutoffEventList->last()) VCFCutoffCtrl.fvalue = cutoff; // needed for initialization of parameter matrix next time  
         }  
848    
849          // process filter resonance events              // do we need resampling?
850          {              const float __PLUS_ONE_CENT  = 1.000577789506554859250142541782224725466f;
851              RTEList<Event>* pResonanceEventList = pEngine->pSynthesisEvents[Event::destination_vcfr];              const float __MINUS_ONE_CENT = 0.9994225441413807496009516495583113737666f;
852              Event* pResonanceEvent = pResonanceEventList->first();              const bool bResamplingRequired = !(finalSynthesisParameters.fFinalPitch <= __PLUS_ONE_CENT &&
853              if (Delay) { // skip events that happened before this voice was triggered                                                 finalSynthesisParameters.fFinalPitch >= __MINUS_ONE_CENT);
854                  while (pResonanceEvent && pResonanceEvent->FragmentPos() <= Delay) pResonanceEvent = pResonanceEventList->next();              SYNTHESIS_MODE_SET_INTERPOLATE(SynthesisMode, bResamplingRequired);
855              }  
856              while (pResonanceEvent) {              // prepare final synthesis parameters structure
857                  Event* pNextResonanceEvent = pResonanceEventList->next();              finalSynthesisParameters.uiToGo            = iSubFragmentEnd - i;
858    #ifdef CONFIG_INTERPOLATE_VOLUME
859                  // calculate the influence length of this event (in sample points)              finalSynthesisParameters.fFinalVolumeDeltaLeft  =
860                  uint end = (pNextResonanceEvent) ? pNextResonanceEvent->FragmentPos() : Samples;                  (fFinalVolume * VolumeLeft  * PanLeftSmoother.render() -
861                     finalSynthesisParameters.fFinalVolumeLeft) / finalSynthesisParameters.uiToGo;
862                  // convert absolute controller value to differential              finalSynthesisParameters.fFinalVolumeDeltaRight =
863                  int ctrldelta = pResonanceEvent->Value - VCFResonanceCtrl.value;                  (fFinalVolume * VolumeRight * PanRightSmoother.render() -
864                  VCFResonanceCtrl.value = pResonanceEvent->Value;                   finalSynthesisParameters.fFinalVolumeRight) / finalSynthesisParameters.uiToGo;
865    #else
866                  float resonancedelta = (float) ctrldelta * 0.00787f; // 0.0..1.0              finalSynthesisParameters.fFinalVolumeLeft  =
867                    fFinalVolume * VolumeLeft  * PanLeftSmoother.render();
868                  // apply cutoff frequency to the cutoff parameter sequence              finalSynthesisParameters.fFinalVolumeRight =
869                  for (uint i = pResonanceEvent->FragmentPos(); i < end; i++) {                  fFinalVolume * VolumeRight * PanRightSmoother.render();
870                      pEngine->pSynthesisParameters[Event::destination_vcfr][i] += resonancedelta;  #endif
871                // render audio for one subfragment
872                RunSynthesisFunction(SynthesisMode, &finalSynthesisParameters, &loop);
873    
874                // stop the rendering if volume EG is finished
875                if (EG1.getSegmentType() == EGADSR::segment_end) break;
876    
877                const double newPos = Pos + (iSubFragmentEnd - i) * finalSynthesisParameters.fFinalPitch;
878    
879                // increment envelopes' positions
880                if (EG1.active()) {
881    
882                    // 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
883                    if (pSample->Loops && Pos <= pSample->LoopStart && pSample->LoopStart < newPos) {
884                        EG1.update(EGADSR::event_hold_end, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
885                  }                  }
886    
887                  pResonanceEvent = pNextResonanceEvent;                  EG1.increment(1);
888                    if (!EG1.toStageEndLeft()) EG1.update(EGADSR::event_stage_end, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
889                }
890                if (EG2.active()) {
891                    EG2.increment(1);
892                    if (!EG2.toStageEndLeft()) EG2.update(EGADSR::event_stage_end, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
893              }              }
894              if (pResonanceEventList->last()) VCFResonanceCtrl.fvalue = pResonanceEventList->last()->Value * 0.00787f; // needed for initialization of parameter matrix next time              EG3.increment(1);
895                if (!EG3.toEndLeft()) EG3.update(); // neutralize envelope coefficient if end reached
896    
897                Pos = newPos;
898                i = iSubFragmentEnd;
899          }          }
     #endif // ENABLE_FILTER  
900      }      }
901    
902      #if ENABLE_FILTER      /** @brief Update current portamento position.
903      /**       *
904       * Calculate all necessary, final biquad filter parameters.       * Will be called when portamento mode is enabled to get the final
905         * portamento position of this active voice from where the next voice(s)
906         * might continue to slide on.
907       *       *
908       * @param Samples - number of samples to be rendered in this audio fragment cycle       * @param itNoteOffEvent - event which causes this voice to die soon
909       */       */
910      void Voice::CalculateBiquadParameters(uint Samples) {      void Voice::UpdatePortamentoPos(Pool<Event>::Iterator& itNoteOffEvent) {
911          if (!FilterLeft.Enabled) return;          const float fFinalEG3Level = EG3.level(itNoteOffEvent->FragmentPos());
912            pEngineChannel->PortamentoPos = (float) MIDIKey + RTMath::FreqRatioToCents(fFinalEG3Level) * 0.01f;
         biquad_param_t bqbase;  
         biquad_param_t bqmain;  
         float prev_cutoff = pEngine->pSynthesisParameters[Event::destination_vcfc][0];  
         float prev_res    = pEngine->pSynthesisParameters[Event::destination_vcfr][0];  
         FilterLeft.SetParameters(&bqbase, &bqmain, prev_cutoff, prev_res, pEngine->SampleRate);  
         pEngine->pBasicFilterParameters[0] = bqbase;  
         pEngine->pMainFilterParameters[0]  = bqmain;  
   
         float* bq;  
         for (int i = 1; i < Samples; i++) {  
             // recalculate biquad parameters if cutoff or resonance differ from previous sample point  
             if (!(i & FILTER_UPDATE_MASK)) if (pEngine->pSynthesisParameters[Event::destination_vcfr][i] != prev_res ||  
                                                pEngine->pSynthesisParameters[Event::destination_vcfc][i] != prev_cutoff) {  
                 prev_cutoff = pEngine->pSynthesisParameters[Event::destination_vcfc][i];  
                 prev_res    = pEngine->pSynthesisParameters[Event::destination_vcfr][i];  
                 FilterLeft.SetParameters(&bqbase, &bqmain, prev_cutoff, prev_res, pEngine->SampleRate);  
             }  
   
             //same as 'pEngine->pBasicFilterParameters[i] = bqbase;'  
             bq    = (float*) &pEngine->pBasicFilterParameters[i];  
             bq[0] = bqbase.a1;  
             bq[1] = bqbase.a2;  
             bq[2] = bqbase.b0;  
             bq[3] = bqbase.b1;  
             bq[4] = bqbase.b2;  
   
             // same as 'pEngine->pMainFilterParameters[i] = bqmain;'  
             bq    = (float*) &pEngine->pMainFilterParameters[i];  
             bq[0] = bqmain.a1;  
             bq[1] = bqmain.a2;  
             bq[2] = bqmain.b0;  
             bq[3] = bqmain.b1;  
             bq[4] = bqmain.b2;  
         }  
913      }      }
     #endif // ENABLE_FILTER  
914    
915      /**      /**
916       *  Interpolates the input audio data (no loop).       *  Immediately kill the voice. This method should not be used to kill
917         *  a normal, active voice, because it doesn't take care of things like
918         *  fading down the volume level to avoid clicks and regular processing
919         *  until the kill event actually occured!
920       *       *
921       *  @param Samples - number of sample points to be rendered in this audio       *  @see Kill()
      *                   fragment cycle  
      *  @param pSrc    - pointer to input sample data  
      *  @param Skip    - number of sample points to skip in output buffer  
922       */       */
923      void Voice::Interpolate(uint Samples, sample_t* pSrc, uint Skip) {      void Voice::KillImmediately() {
924          int i = Skip;          if (DiskVoice && DiskStreamRef.State != Stream::state_unused) {
925                pDiskThread->OrderDeletionOfStream(&DiskStreamRef);
         // FIXME: assuming either mono or stereo  
         if (this->pSample->Channels == 2) { // Stereo Sample  
             while (i < Samples) {  
                 InterpolateOneStep_Stereo(pSrc, i,  
                                           pEngine->pSynthesisParameters[Event::destination_vca][i],  
                                           pEngine->pSynthesisParameters[Event::destination_vco][i],  
                                           pEngine->pBasicFilterParameters[i],  
                                           pEngine->pMainFilterParameters[i]);  
             }  
         }  
         else { // Mono Sample  
             while (i < Samples) {  
                 InterpolateOneStep_Mono(pSrc, i,  
                                         pEngine->pSynthesisParameters[Event::destination_vca][i],  
                                         pEngine->pSynthesisParameters[Event::destination_vco][i],  
                                         pEngine->pBasicFilterParameters[i],  
                                         pEngine->pMainFilterParameters[i]);  
             }  
926          }          }
927            Reset();
928      }      }
929    
930      /**      /**
931       *  Interpolates the input audio data, this method honors looping.       *  Kill the voice in regular sense. Let the voice render audio until
932         *  the kill event actually occured and then fade down the volume level
933         *  very quickly and let the voice die finally. Unlike a normal release
934         *  of a voice, a kill process cannot be cancalled and is therefore
935         *  usually used for voice stealing and key group conflicts.
936       *       *
937       *  @param Samples - number of sample points to be rendered in this audio       *  @param itKillEvent - event which caused the voice to be killed
      *                   fragment cycle  
      *  @param pSrc    - pointer to input sample data  
      *  @param Skip    - number of sample points to skip in output buffer  
938       */       */
939      void Voice::InterpolateAndLoop(uint Samples, sample_t* pSrc, uint Skip) {      void Voice::Kill(Pool<Event>::Iterator& itKillEvent) {
940          int i = Skip;          #if CONFIG_DEVMODE
941            if (!itKillEvent) dmsg(1,("gig::Voice::Kill(): ERROR, !itKillEvent !!!\n"));
942          // FIXME: assuming either mono or stereo          if (itKillEvent && !itKillEvent.isValid()) dmsg(1,("gig::Voice::Kill(): ERROR, itKillEvent invalid !!!\n"));
943          if (pSample->Channels == 2) { // Stereo Sample          #endif // CONFIG_DEVMODE
             if (pSample->LoopPlayCount) {  
                 // render loop (loop count limited)  
                 while (i < Samples && LoopCyclesLeft) {  
                     InterpolateOneStep_Stereo(pSrc, i,  
                                               pEngine->pSynthesisParameters[Event::destination_vca][i],  
                                               pEngine->pSynthesisParameters[Event::destination_vco][i],  
                                               pEngine->pBasicFilterParameters[i],  
                                               pEngine->pMainFilterParameters[i]);  
                     if (Pos > pSample->LoopEnd) {  
                         Pos = pSample->LoopStart + fmod(Pos - pSample->LoopEnd, pSample->LoopSize);;  
                         LoopCyclesLeft--;  
                     }  
                 }  
                 // render on without loop  
                 while (i < Samples) {  
                     InterpolateOneStep_Stereo(pSrc, i,  
                                               pEngine->pSynthesisParameters[Event::destination_vca][i],  
                                               pEngine->pSynthesisParameters[Event::destination_vco][i],  
                                               pEngine->pBasicFilterParameters[i],  
                                               pEngine->pMainFilterParameters[i]);  
                 }  
             }  
             else { // render loop (endless loop)  
                 while (i < Samples) {  
                     InterpolateOneStep_Stereo(pSrc, i,  
                                               pEngine->pSynthesisParameters[Event::destination_vca][i],  
                                               pEngine->pSynthesisParameters[Event::destination_vco][i],  
                                               pEngine->pBasicFilterParameters[i],  
                                               pEngine->pMainFilterParameters[i]);  
                     if (Pos > pSample->LoopEnd) {  
                         Pos = pSample->LoopStart + fmod(Pos - pSample->LoopEnd, pSample->LoopSize);  
                     }  
                 }  
             }  
         }  
         else { // Mono Sample  
             if (pSample->LoopPlayCount) {  
                 // render loop (loop count limited)  
                 while (i < Samples && LoopCyclesLeft) {  
                     InterpolateOneStep_Mono(pSrc, i,  
                                             pEngine->pSynthesisParameters[Event::destination_vca][i],  
                                             pEngine->pSynthesisParameters[Event::destination_vco][i],  
                                             pEngine->pBasicFilterParameters[i],  
                                             pEngine->pMainFilterParameters[i]);  
                     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->pBasicFilterParameters[i],  
                                             pEngine->pMainFilterParameters[i]);  
                 }  
             }  
             else { // render loop (endless loop)  
                 while (i < Samples) {  
                     InterpolateOneStep_Mono(pSrc, i,  
                                             pEngine->pSynthesisParameters[Event::destination_vca][i],  
                                             pEngine->pSynthesisParameters[Event::destination_vco][i],  
                                             pEngine->pBasicFilterParameters[i],  
                                             pEngine->pMainFilterParameters[i]);  
                     if (Pos > pSample->LoopEnd) {  
                         Pos = pSample->LoopStart + fmod(Pos - pSample->LoopEnd, pSample->LoopSize);;  
                     }  
                 }  
             }  
         }  
     }  
944    
945      /**          if (itTriggerEvent && itKillEvent->FragmentPos() <= itTriggerEvent->FragmentPos()) return;
946       *  Immediately kill the voice.          this->itKillEvent = itKillEvent;
      */  
     void Voice::Kill() {  
         if (DiskVoice && DiskStreamRef.State != Stream::state_unused) {  
             pDiskThread->OrderDeletionOfStream(&DiskStreamRef);  
         }  
         Reset();  
947      }      }
948    
949  }} // namespace LinuxSampler::gig  }} // namespace LinuxSampler::gig
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