/[svn]/linuxsampler/trunk/src/engines/gig/Voice.cpp
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Diff of /linuxsampler/trunk/src/engines/gig/Voice.cpp

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revision 225 by schoenebeck, Sun Aug 22 14:46:47 2004 UTC revision 361 by schoenebeck, Wed Feb 9 01:22:18 2005 UTC
# Line 22  Line 22 
22    
23  #include "EGADSR.h"  #include "EGADSR.h"
24  #include "Manipulator.h"  #include "Manipulator.h"
25    #include "../../common/Features.h"
26    #include "Synthesizer.h"
27    
28  #include "Voice.h"  #include "Voice.h"
29    
30  namespace LinuxSampler { namespace gig {  namespace LinuxSampler { namespace gig {
31    
     // FIXME: no support for layers (nor crossfades) yet  
   
32      const float Voice::FILTER_CUTOFF_COEFF(CalculateFilterCutoffCoeff());      const float Voice::FILTER_CUTOFF_COEFF(CalculateFilterCutoffCoeff());
33    
34      const int Voice::FILTER_UPDATE_MASK(CalculateFilterUpdateMask());      const int Voice::FILTER_UPDATE_MASK(CalculateFilterUpdateMask());
# Line 47  namespace LinuxSampler { namespace gig { Line 47  namespace LinuxSampler { namespace gig {
47      Voice::Voice() {      Voice::Voice() {
48          pEngine     = NULL;          pEngine     = NULL;
49          pDiskThread = NULL;          pDiskThread = NULL;
50          Active = false;          PlaybackState = playback_state_end;
51          pEG1   = NULL;          pEG1   = NULL;
52          pEG2   = NULL;          pEG2   = NULL;
53          pEG3   = NULL;          pEG3   = NULL;
# Line 57  namespace LinuxSampler { namespace gig { Line 57  namespace LinuxSampler { namespace gig {
57          pLFO1  = NULL;          pLFO1  = NULL;
58          pLFO2  = NULL;          pLFO2  = NULL;
59          pLFO3  = NULL;          pLFO3  = NULL;
60            KeyGroup = 0;
61            SynthesisMode = 0; // set all mode bits to 0 first
62            // select synthesis implementation (currently either pure C++ or MMX+SSE(1))
63            #if ARCH_X86
64            SYNTHESIS_MODE_SET_IMPLEMENTATION(SynthesisMode, Features::supportsMMX() && Features::supportsSSE());
65            #else
66            SYNTHESIS_MODE_SET_IMPLEMENTATION(SynthesisMode, false);
67            #endif
68            SYNTHESIS_MODE_SET_PROFILING(SynthesisMode, true);
69      }      }
70    
71      Voice::~Voice() {      Voice::~Voice() {
# Line 104  namespace LinuxSampler { namespace gig { Line 113  namespace LinuxSampler { namespace gig {
113       *  Initializes and triggers the voice, a disk stream will be launched if       *  Initializes and triggers the voice, a disk stream will be launched if
114       *  needed.       *  needed.
115       *       *
116       *  @param pNoteOnEvent - event that caused triggering of this voice       *  @param itNoteOnEvent       - event that caused triggering of this voice
117       *  @param PitchBend    - MIDI detune factor (-8192 ... +8191)       *  @param PitchBend           - MIDI detune factor (-8192 ... +8191)
118       *  @param pInstrument  - points to the loaded instrument which provides sample wave(s) and articulation data       *  @param pInstrument         - points to the loaded instrument which provides sample wave(s) and articulation data
119       *  @returns            0 on success, a value < 0 if something failed       *  @param iLayer              - layer number this voice refers to (only if this is a layered sound of course)
120         *  @param ReleaseTriggerVoice - if this new voice is a release trigger voice (optional, default = false)
121         *  @param VoiceStealing       - wether the voice is allowed to steal voices for further subvoices
122         *  @returns 0 on success, a value < 0 if the voice wasn't triggered
123         *           (either due to an error or e.g. because no region is
124         *           defined for the given key)
125       */       */
126      int Voice::Trigger(Event* pNoteOnEvent, int PitchBend, ::gig::Instrument* pInstrument) {      int Voice::Trigger(Pool<Event>::Iterator& itNoteOnEvent, int PitchBend, ::gig::Instrument* pInstrument, int iLayer, bool ReleaseTriggerVoice, bool VoiceStealing) {
127          if (!pInstrument) {          if (!pInstrument) {
128             dmsg(1,("voice::trigger: !pInstrument\n"));             dmsg(1,("voice::trigger: !pInstrument\n"));
129             exit(EXIT_FAILURE);             exit(EXIT_FAILURE);
130          }          }
131            if (itNoteOnEvent->FragmentPos() > pEngine->MaxSamplesPerCycle) { // FIXME: should be removed before the final release (purpose: just a sanity check for debugging)
132                dmsg(1,("Voice::Trigger(): ERROR, TriggerDelay > Totalsamples\n"));
133            }
134    
135          Active          = true;          Type            = type_normal;
136          MIDIKey         = pNoteOnEvent->Key;          MIDIKey         = itNoteOnEvent->Param.Note.Key;
137          pRegion         = pInstrument->GetRegion(MIDIKey);          pRegion         = pInstrument->GetRegion(MIDIKey);
138          PlaybackState   = playback_state_ram; // we always start playback from RAM cache and switch then to disk if needed          PlaybackState   = playback_state_ram; // we always start playback from RAM cache and switch then to disk if needed
139          Pos             = 0;          Delay           = itNoteOnEvent->FragmentPos();
140          Delay           = pNoteOnEvent->FragmentPos();          itTriggerEvent  = itNoteOnEvent;
141          pTriggerEvent   = pNoteOnEvent;          itKillEvent     = Pool<Event>::Iterator();
142            itChildVoice    = Pool<Voice>::Iterator();
143    
144          if (!pRegion) {          if (!pRegion) {
145              std::cerr << "Audio Thread: No Region defined for MIDI key " << MIDIKey << std::endl << std::flush;              dmsg(4, ("gig::Voice: No Region defined for MIDI key %d\n", MIDIKey));
             Kill();  
146              return -1;              return -1;
147          }          }
148    
149          //TODO: current MIDI controller values are not taken into account yet          KeyGroup = pRegion->KeyGroup;
150          ::gig::DimensionRegion* pDimRgn = NULL;  
151          for (int i = pRegion->Dimensions - 1; i >= 0; i--) { // Check if instrument has a velocity split          // get current dimension values to select the right dimension region
152              if (pRegion->pDimensionDefinitions[i].dimension == ::gig::dimension_velocity) {          //FIXME: controller values for selecting the dimension region here are currently not sample accurate
153                  uint DimValues[5] = {0,0,0,0,0};          uint DimValues[8] = { 0 };
154                      DimValues[i] = pNoteOnEvent->Velocity;          for (int i = pRegion->Dimensions - 1; i >= 0; i--) {
155                  pDimRgn = pRegion->GetDimensionRegionByValue(DimValues[4],DimValues[3],DimValues[2],DimValues[1],DimValues[0]);              switch (pRegion->pDimensionDefinitions[i].dimension) {
156                  break;                  case ::gig::dimension_samplechannel:
157                        DimValues[i] = 0; //TODO: we currently ignore this dimension
158                        break;
159                    case ::gig::dimension_layer:
160                        DimValues[i] = iLayer;
161                        // if this is the 1st layer then spawn further voices for all the other layers
162                        if (iLayer == 0)
163                            for (int iNewLayer = 1; iNewLayer < pRegion->pDimensionDefinitions[i].zones; iNewLayer++)
164                                itChildVoice = pEngine->LaunchVoice(itNoteOnEvent, iNewLayer, ReleaseTriggerVoice, VoiceStealing);
165                        break;
166                    case ::gig::dimension_velocity:
167                        DimValues[i] = itNoteOnEvent->Param.Note.Velocity;
168                        break;
169                    case ::gig::dimension_channelaftertouch:
170                        DimValues[i] = 0; //TODO: we currently ignore this dimension
171                        break;
172                    case ::gig::dimension_releasetrigger:
173                        Type = (ReleaseTriggerVoice) ? type_release_trigger : (!iLayer) ? type_release_trigger_required : type_normal;
174                        DimValues[i] = (uint) ReleaseTriggerVoice;
175                        break;
176                    case ::gig::dimension_keyboard:
177                        DimValues[i] = (uint) pEngine->CurrentKeyDimension;
178                        break;
179                    case ::gig::dimension_modwheel:
180                        DimValues[i] = pEngine->ControllerTable[1];
181                        break;
182                    case ::gig::dimension_breath:
183                        DimValues[i] = pEngine->ControllerTable[2];
184                        break;
185                    case ::gig::dimension_foot:
186                        DimValues[i] = pEngine->ControllerTable[4];
187                        break;
188                    case ::gig::dimension_portamentotime:
189                        DimValues[i] = pEngine->ControllerTable[5];
190                        break;
191                    case ::gig::dimension_effect1:
192                        DimValues[i] = pEngine->ControllerTable[12];
193                        break;
194                    case ::gig::dimension_effect2:
195                        DimValues[i] = pEngine->ControllerTable[13];
196                        break;
197                    case ::gig::dimension_genpurpose1:
198                        DimValues[i] = pEngine->ControllerTable[16];
199                        break;
200                    case ::gig::dimension_genpurpose2:
201                        DimValues[i] = pEngine->ControllerTable[17];
202                        break;
203                    case ::gig::dimension_genpurpose3:
204                        DimValues[i] = pEngine->ControllerTable[18];
205                        break;
206                    case ::gig::dimension_genpurpose4:
207                        DimValues[i] = pEngine->ControllerTable[19];
208                        break;
209                    case ::gig::dimension_sustainpedal:
210                        DimValues[i] = pEngine->ControllerTable[64];
211                        break;
212                    case ::gig::dimension_portamento:
213                        DimValues[i] = pEngine->ControllerTable[65];
214                        break;
215                    case ::gig::dimension_sostenutopedal:
216                        DimValues[i] = pEngine->ControllerTable[66];
217                        break;
218                    case ::gig::dimension_softpedal:
219                        DimValues[i] = pEngine->ControllerTable[67];
220                        break;
221                    case ::gig::dimension_genpurpose5:
222                        DimValues[i] = pEngine->ControllerTable[80];
223                        break;
224                    case ::gig::dimension_genpurpose6:
225                        DimValues[i] = pEngine->ControllerTable[81];
226                        break;
227                    case ::gig::dimension_genpurpose7:
228                        DimValues[i] = pEngine->ControllerTable[82];
229                        break;
230                    case ::gig::dimension_genpurpose8:
231                        DimValues[i] = pEngine->ControllerTable[83];
232                        break;
233                    case ::gig::dimension_effect1depth:
234                        DimValues[i] = pEngine->ControllerTable[91];
235                        break;
236                    case ::gig::dimension_effect2depth:
237                        DimValues[i] = pEngine->ControllerTable[92];
238                        break;
239                    case ::gig::dimension_effect3depth:
240                        DimValues[i] = pEngine->ControllerTable[93];
241                        break;
242                    case ::gig::dimension_effect4depth:
243                        DimValues[i] = pEngine->ControllerTable[94];
244                        break;
245                    case ::gig::dimension_effect5depth:
246                        DimValues[i] = pEngine->ControllerTable[95];
247                        break;
248                    case ::gig::dimension_none:
249                        std::cerr << "gig::Voice::Trigger() Error: dimension=none\n" << std::flush;
250                        break;
251                    default:
252                        std::cerr << "gig::Voice::Trigger() Error: Unknown dimension\n" << std::flush;
253              }              }
254          }          }
255          if (!pDimRgn) { // if there was no velocity split          pDimRgn = pRegion->GetDimensionRegionByValue(DimValues);
             pDimRgn = pRegion->GetDimensionRegionByValue(0,0,0,0,0);  
         }  
256    
257          pSample = pDimRgn->pSample; // sample won't change until the voice is finished          pSample = pDimRgn->pSample; // sample won't change until the voice is finished
258            if (!pSample || !pSample->SamplesTotal) return -1; // no need to continue if sample is silent
259    
260            // select channel mode (mono or stereo)
261            SYNTHESIS_MODE_SET_CHANNELS(SynthesisMode, pSample->Channels == 2);
262    
263            // get starting crossfade volume level
264            switch (pDimRgn->AttenuationController.type) {
265                case ::gig::attenuation_ctrl_t::type_channelaftertouch:
266                    CrossfadeVolume = 1.0f; //TODO: aftertouch not supported yet
267                    break;
268                case ::gig::attenuation_ctrl_t::type_velocity:
269                    CrossfadeVolume = CrossfadeAttenuation(itNoteOnEvent->Param.Note.Velocity);
270                    break;
271                case ::gig::attenuation_ctrl_t::type_controlchange: //FIXME: currently not sample accurate
272                    CrossfadeVolume = CrossfadeAttenuation(pEngine->ControllerTable[pDimRgn->AttenuationController.controller_number]);
273                    break;
274                case ::gig::attenuation_ctrl_t::type_none: // no crossfade defined
275                default:
276                    CrossfadeVolume = 1.0f;
277            }
278    
279            PanLeft  = 1.0f - float(RTMath::Max(pDimRgn->Pan, 0)) /  63.0f;
280            PanRight = 1.0f - float(RTMath::Min(pDimRgn->Pan, 0)) / -64.0f;
281    
282            Pos = pDimRgn->SampleStartOffset; // offset where we should start playback of sample (0 - 2000 sample points)
283    
284          // 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
285          long cachedsamples = pSample->GetCache().Size / pSample->FrameSize;          long cachedsamples = pSample->GetCache().Size / pSample->FrameSize;
# Line 161  namespace LinuxSampler { namespace gig { Line 297  namespace LinuxSampler { namespace gig {
297    
298              if (pDiskThread->OrderNewStream(&DiskStreamRef, pSample, MaxRAMPos, !RAMLoop) < 0) {              if (pDiskThread->OrderNewStream(&DiskStreamRef, pSample, MaxRAMPos, !RAMLoop) < 0) {
299                  dmsg(1,("Disk stream order failed!\n"));                  dmsg(1,("Disk stream order failed!\n"));
300                  Kill();                  KillImmediately();
301                  return -1;                  return -1;
302              }              }
303              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"));
# Line 179  namespace LinuxSampler { namespace gig { Line 315  namespace LinuxSampler { namespace gig {
315    
316          // calculate initial pitch value          // calculate initial pitch value
317          {          {
318              double pitchbasecents = pDimRgn->FineTune * 10;              double pitchbasecents = pDimRgn->FineTune + (int) pEngine->ScaleTuning[MIDIKey % 12];
319              if (pDimRgn->PitchTrack) pitchbasecents += (MIDIKey - (int) pDimRgn->UnityNote) * 100;              if (pDimRgn->PitchTrack) pitchbasecents += (MIDIKey - (int) pDimRgn->UnityNote) * 100;
320              this->PitchBase = RTMath::CentsToFreqRatio(pitchbasecents);              this->PitchBase = RTMath::CentsToFreqRatio(pitchbasecents) * (double(pSample->SamplesPerSecond) / double(pEngine->pAudioOutputDevice->SampleRate()));
321              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
322          }          }
323    
324            Volume = pDimRgn->GetVelocityAttenuation(itNoteOnEvent->Param.Note.Velocity) / 32768.0f; // we downscale by 32768 to convert from int16 value range to DSP value range (which is -1.0..1.0)
         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)  
   
325    
326          // setup EG 1 (VCA EG)          // setup EG 1 (VCA EG)
327          {          {
# Line 201  namespace LinuxSampler { namespace gig { Line 335  namespace LinuxSampler { namespace gig {
335                      eg1controllervalue = 0; // TODO: aftertouch not yet supported                      eg1controllervalue = 0; // TODO: aftertouch not yet supported
336                      break;                      break;
337                  case ::gig::eg1_ctrl_t::type_velocity:                  case ::gig::eg1_ctrl_t::type_velocity:
338                      eg1controllervalue = pNoteOnEvent->Velocity;                      eg1controllervalue = itNoteOnEvent->Param.Note.Velocity;
339                      break;                      break;
340                  case ::gig::eg1_ctrl_t::type_controlchange: // MIDI control change controller                  case ::gig::eg1_ctrl_t::type_controlchange: // MIDI control change controller
341                      eg1controllervalue = pEngine->ControllerTable[pDimRgn->EG1Controller.controller_number];                      eg1controllervalue = pEngine->ControllerTable[pDimRgn->EG1Controller.controller_number];
# Line 227  namespace LinuxSampler { namespace gig { Line 361  namespace LinuxSampler { namespace gig {
361          }          }
362    
363    
     #if ENABLE_FILTER  
364          // setup EG 2 (VCF Cutoff EG)          // setup EG 2 (VCF Cutoff EG)
365          {          {
366              // get current value of EG2 controller              // get current value of EG2 controller
# Line 240  namespace LinuxSampler { namespace gig { Line 373  namespace LinuxSampler { namespace gig {
373                      eg2controllervalue = 0; // TODO: aftertouch not yet supported                      eg2controllervalue = 0; // TODO: aftertouch not yet supported
374                      break;                      break;
375                  case ::gig::eg2_ctrl_t::type_velocity:                  case ::gig::eg2_ctrl_t::type_velocity:
376                      eg2controllervalue = pNoteOnEvent->Velocity;                      eg2controllervalue = itNoteOnEvent->Param.Note.Velocity;
377                      break;                      break;
378                  case ::gig::eg2_ctrl_t::type_controlchange: // MIDI control change controller                  case ::gig::eg2_ctrl_t::type_controlchange: // MIDI control change controller
379                      eg2controllervalue = pEngine->ControllerTable[pDimRgn->EG2Controller.controller_number];                      eg2controllervalue = pEngine->ControllerTable[pDimRgn->EG2Controller.controller_number];
# Line 264  namespace LinuxSampler { namespace gig { Line 397  namespace LinuxSampler { namespace gig {
397                            pDimRgn->EG2Release + eg2release,                            pDimRgn->EG2Release + eg2release,
398                            Delay);                            Delay);
399          }          }
     #endif // ENABLE_FILTER  
400    
401    
402          // setup EG 3 (VCO EG)          // setup EG 3 (VCO EG)
# Line 311  namespace LinuxSampler { namespace gig { Line 443  namespace LinuxSampler { namespace gig {
443                            Delay);                            Delay);
444          }          }
445    
446      #if ENABLE_FILTER  
447          // setup LFO 2 (VCF Cutoff LFO)          // setup LFO 2 (VCF Cutoff LFO)
448          {          {
449              uint16_t lfo2_internal_depth;              uint16_t lfo2_internal_depth;
# Line 348  namespace LinuxSampler { namespace gig { Line 480  namespace LinuxSampler { namespace gig {
480                            pEngine->SampleRate,                            pEngine->SampleRate,
481                            Delay);                            Delay);
482          }          }
483      #endif // ENABLE_FILTER  
484    
485          // setup LFO 3 (VCO LFO)          // setup LFO 3 (VCO LFO)
486          {          {
# Line 387  namespace LinuxSampler { namespace gig { Line 519  namespace LinuxSampler { namespace gig {
519                            Delay);                            Delay);
520          }          }
521    
522      #if ENABLE_FILTER  
523          #if FORCE_FILTER_USAGE          #if FORCE_FILTER_USAGE
524          FilterLeft.Enabled = FilterRight.Enabled = true;          SYNTHESIS_MODE_SET_FILTER(SynthesisMode, true);
525          #else // use filter only if instrument file told so          #else // use filter only if instrument file told so
526          FilterLeft.Enabled = FilterRight.Enabled = pDimRgn->VCFEnabled;          SYNTHESIS_MODE_SET_FILTER(SynthesisMode, pDimRgn->VCFEnabled);
527          #endif // FORCE_FILTER_USAGE          #endif // FORCE_FILTER_USAGE
528          if (pDimRgn->VCFEnabled) {          if (pDimRgn->VCFEnabled) {
529              #ifdef OVERRIDE_FILTER_CUTOFF_CTRL              #ifdef OVERRIDE_FILTER_CUTOFF_CTRL
# Line 468  namespace LinuxSampler { namespace gig { Line 600  namespace LinuxSampler { namespace gig {
600    
601              // calculate cutoff frequency              // calculate cutoff frequency
602              float cutoff = (!VCFCutoffCtrl.controller)              float cutoff = (!VCFCutoffCtrl.controller)
603                  ? exp((float) (127 - pNoteOnEvent->Velocity) * (float) pDimRgn->VCFVelocityScale * 6.2E-5f * FILTER_CUTOFF_COEFF) * FILTER_CUTOFF_MAX                  ? exp((float) (127 - itNoteOnEvent->Param.Note.Velocity) * (float) pDimRgn->VCFVelocityScale * 6.2E-5f * FILTER_CUTOFF_COEFF) * FILTER_CUTOFF_MAX
604                  : exp((float) VCFCutoffCtrl.value * 0.00787402f * FILTER_CUTOFF_COEFF) * FILTER_CUTOFF_MAX;                  : exp((float) VCFCutoffCtrl.value * 0.00787402f * FILTER_CUTOFF_COEFF) * FILTER_CUTOFF_MAX;
605    
606              // calculate resonance              // calculate resonance
607              float resonance = (float) VCFResonanceCtrl.value * 0.00787f;   // 0.0..1.0              float resonance = (float) VCFResonanceCtrl.value * 0.00787f;   // 0.0..1.0
608              if (pDimRgn->VCFKeyboardTracking) {              if (pDimRgn->VCFKeyboardTracking) {
609                  resonance += (float) (pNoteOnEvent->Key - pDimRgn->VCFKeyboardTrackingBreakpoint) * 0.00787f;                  resonance += (float) (itNoteOnEvent->Param.Note.Key - pDimRgn->VCFKeyboardTrackingBreakpoint) * 0.00787f;
610              }              }
611              Constrain(resonance, 0.0, 1.0); // correct resonance if outside allowed value range (0.0..1.0)              Constrain(resonance, 0.0, 1.0); // correct resonance if outside allowed value range (0.0..1.0)
612    
613              VCFCutoffCtrl.fvalue    = cutoff - FILTER_CUTOFF_MIN;              VCFCutoffCtrl.fvalue    = cutoff - FILTER_CUTOFF_MIN;
614              VCFResonanceCtrl.fvalue = resonance;              VCFResonanceCtrl.fvalue = resonance;
615    
             FilterLeft.SetParameters(cutoff,  resonance, pEngine->SampleRate);  
             FilterRight.SetParameters(cutoff, resonance, pEngine->SampleRate);  
   
616              FilterUpdateCounter = -1;              FilterUpdateCounter = -1;
617          }          }
618          else {          else {
619              VCFCutoffCtrl.controller    = 0;              VCFCutoffCtrl.controller    = 0;
620              VCFResonanceCtrl.controller = 0;              VCFResonanceCtrl.controller = 0;
621          }          }
     #endif // ENABLE_FILTER  
   
         // ************************************************  
         // TODO: ARTICULATION DATA HANDLING IS MISSING HERE  
         // ************************************************  
622    
623          return 0; // success          return 0; // success
624      }      }
# Line 512  namespace LinuxSampler { namespace gig { Line 636  namespace LinuxSampler { namespace gig {
636       */       */
637      void Voice::Render(uint Samples) {      void Voice::Render(uint Samples) {
638    
639            // select default values for synthesis mode bits
640            SYNTHESIS_MODE_SET_INTERPOLATE(SynthesisMode, (PitchBase * PitchBend) != 1.0f);
641            SYNTHESIS_MODE_SET_CONSTPITCH(SynthesisMode, true);
642            SYNTHESIS_MODE_SET_LOOP(SynthesisMode, false);
643    
644          // Reset the synthesis parameter matrix          // Reset the synthesis parameter matrix
645          pEngine->ResetSynthesisParameters(Event::destination_vca, this->Volume * pEngine->GlobalVolume);  
646            pEngine->ResetSynthesisParameters(Event::destination_vca, this->Volume * this->CrossfadeVolume * pEngine->GlobalVolume);
647          pEngine->ResetSynthesisParameters(Event::destination_vco, this->PitchBase);          pEngine->ResetSynthesisParameters(Event::destination_vco, this->PitchBase);
     #if ENABLE_FILTER  
648          pEngine->ResetSynthesisParameters(Event::destination_vcfc, VCFCutoffCtrl.fvalue);          pEngine->ResetSynthesisParameters(Event::destination_vcfc, VCFCutoffCtrl.fvalue);
649          pEngine->ResetSynthesisParameters(Event::destination_vcfr, VCFResonanceCtrl.fvalue);          pEngine->ResetSynthesisParameters(Event::destination_vcfr, VCFResonanceCtrl.fvalue);
     #endif // ENABLE_FILTER  
   
650    
651          // Apply events to the synthesis parameter matrix          // Apply events to the synthesis parameter matrix
652          ProcessEvents(Samples);          ProcessEvents(Samples);
653    
   
654          // Let all modulators write their parameter changes to the synthesis parameter matrix for the current audio fragment          // Let all modulators write their parameter changes to the synthesis parameter matrix for the current audio fragment
655          pEG1->Process(Samples, pEngine->pMIDIKeyInfo[MIDIKey].pEvents, pTriggerEvent, this->Pos, this->PitchBase * this->PitchBend);          pEG1->Process(Samples, pEngine->pMIDIKeyInfo[MIDIKey].pEvents, itTriggerEvent, this->Pos, this->PitchBase * this->PitchBend, itKillEvent);
656      #if ENABLE_FILTER          pEG2->Process(Samples, pEngine->pMIDIKeyInfo[MIDIKey].pEvents, itTriggerEvent, this->Pos, this->PitchBase * this->PitchBend);
657          pEG2->Process(Samples, pEngine->pMIDIKeyInfo[MIDIKey].pEvents, pTriggerEvent, this->Pos, this->PitchBase * this->PitchBend);          if (pEG3->Process(Samples)) { // if pitch EG is active
658      #endif // ENABLE_FILTER              SYNTHESIS_MODE_SET_INTERPOLATE(SynthesisMode, true);
659          pEG3->Process(Samples);              SYNTHESIS_MODE_SET_CONSTPITCH(SynthesisMode, false);
660            }
661          pLFO1->Process(Samples);          pLFO1->Process(Samples);
     #if ENABLE_FILTER  
662          pLFO2->Process(Samples);          pLFO2->Process(Samples);
663      #endif // ENABLE_FILTER          if (pLFO3->Process(Samples)) { // if pitch LFO modulation is active
664          pLFO3->Process(Samples);              SYNTHESIS_MODE_SET_INTERPOLATE(SynthesisMode, true);
665                SYNTHESIS_MODE_SET_CONSTPITCH(SynthesisMode, false);
666            }
     #if ENABLE_FILTER  
         CalculateBiquadParameters(Samples); // calculate the final biquad filter parameters  
     #endif // ENABLE_FILTER  
667    
668            if (SYNTHESIS_MODE_GET_FILTER(SynthesisMode))
669                    CalculateBiquadParameters(Samples); // calculate the final biquad filter parameters
670    
671          switch (this->PlaybackState) {          switch (this->PlaybackState) {
672    
673              case playback_state_ram: {              case playback_state_ram: {
674                      if (RAMLoop) InterpolateAndLoop(Samples, (sample_t*) pSample->GetCache().pStart, Delay);                      if (RAMLoop) SYNTHESIS_MODE_SET_LOOP(SynthesisMode, true); // enable looping
675                      else         Interpolate(Samples, (sample_t*) pSample->GetCache().pStart, Delay);  
676                        // render current fragment
677                        Synthesize(Samples, (sample_t*) pSample->GetCache().pStart, Delay);
678    
679                      if (DiskVoice) {                      if (DiskVoice) {
680                          // check if we reached the allowed limit of the sample RAM cache                          // check if we reached the allowed limit of the sample RAM cache
681                          if (Pos > MaxRAMPos) {                          if (Pos > MaxRAMPos) {
# Line 567  namespace LinuxSampler { namespace gig { Line 695  namespace LinuxSampler { namespace gig {
695                          DiskStreamRef.pStream = pDiskThread->AskForCreatedStream(DiskStreamRef.OrderID);                          DiskStreamRef.pStream = pDiskThread->AskForCreatedStream(DiskStreamRef.OrderID);
696                          if (!DiskStreamRef.pStream) {                          if (!DiskStreamRef.pStream) {
697                              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;
698                              Kill();                              KillImmediately();
699                              return;                              return;
700                          }                          }
701                          DiskStreamRef.pStream->IncrementReadPos(pSample->Channels * (RTMath::DoubleToInt(Pos) - MaxRAMPos));                          DiskStreamRef.pStream->IncrementReadPos(pSample->Channels * (int(Pos) - MaxRAMPos));
702                          Pos -= RTMath::DoubleToInt(Pos);                          Pos -= int(Pos);
703                            RealSampleWordsLeftToRead = -1; // -1 means no silence has been added yet
704                      }                      }
705    
706                        const int sampleWordsLeftToRead = DiskStreamRef.pStream->GetReadSpace();
707    
708                      // 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)
709                      if (DiskStreamRef.State == Stream::state_end && DiskStreamRef.pStream->GetReadSpace() < (pEngine->MaxSamplesPerCycle << MAX_PITCH) / pSample->Channels) {                      if (DiskStreamRef.State == Stream::state_end) {
710                          DiskStreamRef.pStream->WriteSilence((pEngine->MaxSamplesPerCycle << MAX_PITCH) / pSample->Channels);                          const int maxSampleWordsPerCycle = (pEngine->MaxSamplesPerCycle << MAX_PITCH) * pSample->Channels + 6; // +6 for the interpolator algorithm
711                          this->PlaybackState = playback_state_end;                          if (sampleWordsLeftToRead <= maxSampleWordsPerCycle) {
712                                // remember how many sample words there are before any silence has been added
713                                if (RealSampleWordsLeftToRead < 0) RealSampleWordsLeftToRead = sampleWordsLeftToRead;
714                                DiskStreamRef.pStream->WriteSilence(maxSampleWordsPerCycle - sampleWordsLeftToRead);
715                            }
716                      }                      }
717    
718                      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
719                      Interpolate(Samples, ptr, Delay);  
720                      DiskStreamRef.pStream->IncrementReadPos(RTMath::DoubleToInt(Pos) * pSample->Channels);                      // render current audio fragment
721                      Pos -= RTMath::DoubleToInt(Pos);                      Synthesize(Samples, ptr, Delay);
722    
723                        const int iPos = (int) Pos;
724                        const int readSampleWords = iPos * pSample->Channels; // amount of sample words actually been read
725                        DiskStreamRef.pStream->IncrementReadPos(readSampleWords);
726                        Pos -= iPos; // just keep fractional part of Pos
727    
728                        // change state of voice to 'end' if we really reached the end of the sample data
729                        if (RealSampleWordsLeftToRead >= 0) {
730                            RealSampleWordsLeftToRead -= readSampleWords;
731                            if (RealSampleWordsLeftToRead <= 0) this->PlaybackState = playback_state_end;
732                        }
733                  }                  }
734                  break;                  break;
735    
736              case playback_state_end:              case playback_state_end:
737                  Kill(); // free voice                  std::cerr << "gig::Voice::Render(): entered with playback_state_end, this is a bug!\n" << std::flush;
738                  break;                  break;
739          }          }
740    
   
     #if ENABLE_FILTER  
741          // Reset synthesis event lists (except VCO, as VCO events apply channel wide currently)          // Reset synthesis event lists (except VCO, as VCO events apply channel wide currently)
742            pEngine->pSynthesisEvents[Event::destination_vca]->clear();
743          pEngine->pSynthesisEvents[Event::destination_vcfc]->clear();          pEngine->pSynthesisEvents[Event::destination_vcfc]->clear();
744          pEngine->pSynthesisEvents[Event::destination_vcfr]->clear();          pEngine->pSynthesisEvents[Event::destination_vcfr]->clear();
     #endif // ENABLE_FILTER  
745    
746          // Reset delay          // Reset delay
747          Delay = 0;          Delay = 0;
748    
749          pTriggerEvent = NULL;          itTriggerEvent = Pool<Event>::Iterator();
750    
751          // If release stage finished, let the voice be killed          // If sample stream or release stage finished, kill the voice
752          if (pEG1->GetStage() == EGADSR::stage_end) this->PlaybackState = playback_state_end;          if (PlaybackState == playback_state_end || pEG1->GetStage() == EGADSR::stage_end) KillImmediately();
753      }      }
754    
755      /**      /**
# Line 616  namespace LinuxSampler { namespace gig { Line 760  namespace LinuxSampler { namespace gig {
760          pLFO1->Reset();          pLFO1->Reset();
761          pLFO2->Reset();          pLFO2->Reset();
762          pLFO3->Reset();          pLFO3->Reset();
763            FilterLeft.Reset();
764            FilterRight.Reset();
765          DiskStreamRef.pStream = NULL;          DiskStreamRef.pStream = NULL;
766          DiskStreamRef.hStream = 0;          DiskStreamRef.hStream = 0;
767          DiskStreamRef.State   = Stream::state_unused;          DiskStreamRef.State   = Stream::state_unused;
768          DiskStreamRef.OrderID = 0;          DiskStreamRef.OrderID = 0;
769          Active = false;          PlaybackState = playback_state_end;
770            itTriggerEvent = Pool<Event>::Iterator();
771            itKillEvent    = Pool<Event>::Iterator();
772      }      }
773    
774      /**      /**
# Line 633  namespace LinuxSampler { namespace gig { Line 781  namespace LinuxSampler { namespace gig {
781      void Voice::ProcessEvents(uint Samples) {      void Voice::ProcessEvents(uint Samples) {
782    
783          // dispatch control change events          // dispatch control change events
784          Event* pCCEvent = pEngine->pCCEvents->first();          RTList<Event>::Iterator itCCEvent = pEngine->pCCEvents->first();
785          if (Delay) { // skip events that happened before this voice was triggered          if (Delay) { // skip events that happened before this voice was triggered
786              while (pCCEvent && pCCEvent->FragmentPos() <= Delay) pCCEvent = pEngine->pCCEvents->next();              while (itCCEvent && itCCEvent->FragmentPos() <= Delay) ++itCCEvent;
787          }          }
788          while (pCCEvent) {          while (itCCEvent) {
789              if (pCCEvent->Controller) { // if valid MIDI controller              if (itCCEvent->Param.CC.Controller) { // if valid MIDI controller
790                  #if ENABLE_FILTER                  if (itCCEvent->Param.CC.Controller == VCFCutoffCtrl.controller) {
791                  if (pCCEvent->Controller == VCFCutoffCtrl.controller) {                      *pEngine->pSynthesisEvents[Event::destination_vcfc]->allocAppend() = *itCCEvent;
792                      pEngine->pSynthesisEvents[Event::destination_vcfc]->alloc_assign(*pCCEvent);                  }
793                    if (itCCEvent->Param.CC.Controller == VCFResonanceCtrl.controller) {
794                        *pEngine->pSynthesisEvents[Event::destination_vcfr]->allocAppend() = *itCCEvent;
795                  }                  }
796                  if (pCCEvent->Controller == VCFResonanceCtrl.controller) {                  if (itCCEvent->Param.CC.Controller == pLFO1->ExtController) {
797                      pEngine->pSynthesisEvents[Event::destination_vcfr]->alloc_assign(*pCCEvent);                      pLFO1->SendEvent(itCCEvent);
798                  }                  }
799                  #endif // ENABLE_FILTER                  if (itCCEvent->Param.CC.Controller == pLFO2->ExtController) {
800                  if (pCCEvent->Controller == pLFO1->ExtController) {                      pLFO2->SendEvent(itCCEvent);
                     pLFO1->SendEvent(pCCEvent);  
801                  }                  }
802                  #if ENABLE_FILTER                  if (itCCEvent->Param.CC.Controller == pLFO3->ExtController) {
803                  if (pCCEvent->Controller == pLFO2->ExtController) {                      pLFO3->SendEvent(itCCEvent);
                     pLFO2->SendEvent(pCCEvent);  
804                  }                  }
805                  #endif // ENABLE_FILTER                  if (pDimRgn->AttenuationController.type == ::gig::attenuation_ctrl_t::type_controlchange &&
806                  if (pCCEvent->Controller == pLFO3->ExtController) {                      itCCEvent->Param.CC.Controller == pDimRgn->AttenuationController.controller_number) { // if crossfade event
807                      pLFO3->SendEvent(pCCEvent);                      *pEngine->pSynthesisEvents[Event::destination_vca]->allocAppend() = *itCCEvent;
808                  }                  }
809              }              }
810    
811              pCCEvent = pEngine->pCCEvents->next();              ++itCCEvent;
812          }          }
813    
814    
815          // process pitch events          // process pitch events
816          {          {
817              RTEList<Event>* pVCOEventList = pEngine->pSynthesisEvents[Event::destination_vco];              RTList<Event>* pVCOEventList = pEngine->pSynthesisEvents[Event::destination_vco];
818              Event* pVCOEvent = pVCOEventList->first();              RTList<Event>::Iterator itVCOEvent = pVCOEventList->first();
819              if (Delay) { // skip events that happened before this voice was triggered              if (Delay) { // skip events that happened before this voice was triggered
820                  while (pVCOEvent && pVCOEvent->FragmentPos() <= Delay) pVCOEvent = pVCOEventList->next();                  while (itVCOEvent && itVCOEvent->FragmentPos() <= Delay) ++itVCOEvent;
821              }              }
822              // apply old pitchbend value until first pitch event occurs              // apply old pitchbend value until first pitch event occurs
823              if (this->PitchBend != 1.0) {              if (this->PitchBend != 1.0) {
824                  uint end = (pVCOEvent) ? pVCOEvent->FragmentPos() : Samples;                  uint end = (itVCOEvent) ? itVCOEvent->FragmentPos() : Samples;
825                  for (uint i = Delay; i < end; i++) {                  for (uint i = Delay; i < end; i++) {
826                      pEngine->pSynthesisParameters[Event::destination_vco][i] *= this->PitchBend;                      pEngine->pSynthesisParameters[Event::destination_vco][i] *= this->PitchBend;
827                  }                  }
828              }              }
829              float pitch;              float pitch;
830              while (pVCOEvent) {              while (itVCOEvent) {
831                  Event* pNextVCOEvent = pVCOEventList->next();                  RTList<Event>::Iterator itNextVCOEvent = itVCOEvent;
832                    ++itNextVCOEvent;
833    
834                  // calculate the influence length of this event (in sample points)                  // calculate the influence length of this event (in sample points)
835                  uint end = (pNextVCOEvent) ? pNextVCOEvent->FragmentPos() : Samples;                  uint end = (itNextVCOEvent) ? itNextVCOEvent->FragmentPos() : Samples;
836    
837                  pitch = RTMath::CentsToFreqRatio(((double) pVCOEvent->Pitch / 8192.0) * 200.0); // +-two semitones = +-200 cents                  pitch = RTMath::CentsToFreqRatio(((double) itVCOEvent->Param.Pitch.Pitch / 8192.0) * 200.0); // +-two semitones = +-200 cents
838    
839                  // apply pitch value to the pitch parameter sequence                  // apply pitch value to the pitch parameter sequence
840                  for (uint i = pVCOEvent->FragmentPos(); i < end; i++) {                  for (uint i = itVCOEvent->FragmentPos(); i < end; i++) {
841                      pEngine->pSynthesisParameters[Event::destination_vco][i] *= pitch;                      pEngine->pSynthesisParameters[Event::destination_vco][i] *= pitch;
842                  }                  }
843    
844                  pVCOEvent = pNextVCOEvent;                  itVCOEvent = itNextVCOEvent;
845                }
846                if (!pVCOEventList->isEmpty()) {
847                    this->PitchBend = pitch;
848                    SYNTHESIS_MODE_SET_INTERPOLATE(SynthesisMode, true);
849                    SYNTHESIS_MODE_SET_CONSTPITCH(SynthesisMode, false);
850              }              }
             if (pVCOEventList->last()) this->PitchBend = pitch;  
851          }          }
852    
853            // process volume / attenuation events (TODO: we only handle and _expect_ crossfade events here ATM !)
854            {
855                RTList<Event>* pVCAEventList = pEngine->pSynthesisEvents[Event::destination_vca];
856                RTList<Event>::Iterator itVCAEvent = pVCAEventList->first();
857                if (Delay) { // skip events that happened before this voice was triggered
858                    while (itVCAEvent && itVCAEvent->FragmentPos() <= Delay) ++itVCAEvent;
859                }
860                float crossfadevolume;
861                while (itVCAEvent) {
862                    RTList<Event>::Iterator itNextVCAEvent = itVCAEvent;
863                    ++itNextVCAEvent;
864    
865                    // calculate the influence length of this event (in sample points)
866                    uint end = (itNextVCAEvent) ? itNextVCAEvent->FragmentPos() : Samples;
867    
868                    crossfadevolume = CrossfadeAttenuation(itVCAEvent->Param.CC.Value);
869    
870                    float effective_volume = crossfadevolume * this->Volume * pEngine->GlobalVolume;
871    
872                    // apply volume value to the volume parameter sequence
873                    for (uint i = itVCAEvent->FragmentPos(); i < end; i++) {
874                        pEngine->pSynthesisParameters[Event::destination_vca][i] = effective_volume;
875                    }
876    
877                    itVCAEvent = itNextVCAEvent;
878                }
879                if (!pVCAEventList->isEmpty()) this->CrossfadeVolume = crossfadevolume;
880            }
881    
     #if ENABLE_FILTER  
882          // process filter cutoff events          // process filter cutoff events
883          {          {
884              RTEList<Event>* pCutoffEventList = pEngine->pSynthesisEvents[Event::destination_vcfc];              RTList<Event>* pCutoffEventList = pEngine->pSynthesisEvents[Event::destination_vcfc];
885              Event* pCutoffEvent = pCutoffEventList->first();              RTList<Event>::Iterator itCutoffEvent = pCutoffEventList->first();
886              if (Delay) { // skip events that happened before this voice was triggered              if (Delay) { // skip events that happened before this voice was triggered
887                  while (pCutoffEvent && pCutoffEvent->FragmentPos() <= Delay) pCutoffEvent = pCutoffEventList->next();                  while (itCutoffEvent && itCutoffEvent->FragmentPos() <= Delay) ++itCutoffEvent;
888              }              }
889              float cutoff;              float cutoff;
890              while (pCutoffEvent) {              while (itCutoffEvent) {
891                  Event* pNextCutoffEvent = pCutoffEventList->next();                  RTList<Event>::Iterator itNextCutoffEvent = itCutoffEvent;
892                    ++itNextCutoffEvent;
893    
894                  // calculate the influence length of this event (in sample points)                  // calculate the influence length of this event (in sample points)
895                  uint end = (pNextCutoffEvent) ? pNextCutoffEvent->FragmentPos() : Samples;                  uint end = (itNextCutoffEvent) ? itNextCutoffEvent->FragmentPos() : Samples;
896    
897                  cutoff = exp((float) pCutoffEvent->Value * 0.00787402f * FILTER_CUTOFF_COEFF) * FILTER_CUTOFF_MAX - FILTER_CUTOFF_MIN;                  cutoff = exp((float) itCutoffEvent->Param.CC.Value * 0.00787402f * FILTER_CUTOFF_COEFF) * FILTER_CUTOFF_MAX - FILTER_CUTOFF_MIN;
898    
899                  // apply cutoff frequency to the cutoff parameter sequence                  // apply cutoff frequency to the cutoff parameter sequence
900                  for (uint i = pCutoffEvent->FragmentPos(); i < end; i++) {                  for (uint i = itCutoffEvent->FragmentPos(); i < end; i++) {
901                      pEngine->pSynthesisParameters[Event::destination_vcfc][i] = cutoff;                      pEngine->pSynthesisParameters[Event::destination_vcfc][i] = cutoff;
902                  }                  }
903    
904                  pCutoffEvent = pNextCutoffEvent;                  itCutoffEvent = itNextCutoffEvent;
905              }              }
906              if (pCutoffEventList->last()) VCFCutoffCtrl.fvalue = cutoff; // needed for initialization of parameter matrix next time              if (!pCutoffEventList->isEmpty()) VCFCutoffCtrl.fvalue = cutoff; // needed for initialization of parameter matrix next time
907          }          }
908    
909          // process filter resonance events          // process filter resonance events
910          {          {
911              RTEList<Event>* pResonanceEventList = pEngine->pSynthesisEvents[Event::destination_vcfr];              RTList<Event>* pResonanceEventList = pEngine->pSynthesisEvents[Event::destination_vcfr];
912              Event* pResonanceEvent = pResonanceEventList->first();              RTList<Event>::Iterator itResonanceEvent = pResonanceEventList->first();
913              if (Delay) { // skip events that happened before this voice was triggered              if (Delay) { // skip events that happened before this voice was triggered
914                  while (pResonanceEvent && pResonanceEvent->FragmentPos() <= Delay) pResonanceEvent = pResonanceEventList->next();                  while (itResonanceEvent && itResonanceEvent->FragmentPos() <= Delay) ++itResonanceEvent;
915              }              }
916              while (pResonanceEvent) {              while (itResonanceEvent) {
917                  Event* pNextResonanceEvent = pResonanceEventList->next();                  RTList<Event>::Iterator itNextResonanceEvent = itResonanceEvent;
918                    ++itNextResonanceEvent;
919    
920                  // calculate the influence length of this event (in sample points)                  // calculate the influence length of this event (in sample points)
921                  uint end = (pNextResonanceEvent) ? pNextResonanceEvent->FragmentPos() : Samples;                  uint end = (itNextResonanceEvent) ? itNextResonanceEvent->FragmentPos() : Samples;
922    
923                  // convert absolute controller value to differential                  // convert absolute controller value to differential
924                  int ctrldelta = pResonanceEvent->Value - VCFResonanceCtrl.value;                  int ctrldelta = itResonanceEvent->Param.CC.Value - VCFResonanceCtrl.value;
925                  VCFResonanceCtrl.value = pResonanceEvent->Value;                  VCFResonanceCtrl.value = itResonanceEvent->Param.CC.Value;
926    
927                  float resonancedelta = (float) ctrldelta * 0.00787f; // 0.0..1.0                  float resonancedelta = (float) ctrldelta * 0.00787f; // 0.0..1.0
928    
929                  // apply cutoff frequency to the cutoff parameter sequence                  // apply cutoff frequency to the cutoff parameter sequence
930                  for (uint i = pResonanceEvent->FragmentPos(); i < end; i++) {                  for (uint i = itResonanceEvent->FragmentPos(); i < end; i++) {
931                      pEngine->pSynthesisParameters[Event::destination_vcfr][i] += resonancedelta;                      pEngine->pSynthesisParameters[Event::destination_vcfr][i] += resonancedelta;
932                  }                  }
933    
934                  pResonanceEvent = pNextResonanceEvent;                  itResonanceEvent = itNextResonanceEvent;
935              }              }
936              if (pResonanceEventList->last()) VCFResonanceCtrl.fvalue = pResonanceEventList->last()->Value * 0.00787f; // needed for initialization of parameter matrix next time              if (!pResonanceEventList->isEmpty()) VCFResonanceCtrl.fvalue = pResonanceEventList->last()->Param.CC.Value * 0.00787f; // needed for initialization of parameter matrix next time
937          }          }
     #endif // ENABLE_FILTER  
938      }      }
939    
     #if ENABLE_FILTER  
940      /**      /**
941       * Calculate all necessary, final biquad filter parameters.       * Calculate all necessary, final biquad filter parameters.
942       *       *
943       * @param Samples - number of samples to be rendered in this audio fragment cycle       * @param Samples - number of samples to be rendered in this audio fragment cycle
944       */       */
945      void Voice::CalculateBiquadParameters(uint Samples) {      void Voice::CalculateBiquadParameters(uint Samples) {
         if (!FilterLeft.Enabled) return;  
   
946          biquad_param_t bqbase;          biquad_param_t bqbase;
947          biquad_param_t bqmain;          biquad_param_t bqmain;
948          float prev_cutoff = pEngine->pSynthesisParameters[Event::destination_vcfc][0];          float prev_cutoff = pEngine->pSynthesisParameters[Event::destination_vcfc][0];
949          float prev_res    = pEngine->pSynthesisParameters[Event::destination_vcfr][0];          float prev_res    = pEngine->pSynthesisParameters[Event::destination_vcfr][0];
950          FilterLeft.SetParameters(&bqbase, &bqmain, prev_cutoff, prev_res, pEngine->SampleRate);          FilterLeft.SetParameters(&bqbase, &bqmain, prev_cutoff, prev_res, pEngine->SampleRate);
951            FilterRight.SetParameters(&bqbase, &bqmain, prev_cutoff, prev_res, pEngine->SampleRate);
952          pEngine->pBasicFilterParameters[0] = bqbase;          pEngine->pBasicFilterParameters[0] = bqbase;
953          pEngine->pMainFilterParameters[0]  = bqmain;          pEngine->pMainFilterParameters[0]  = bqmain;
954    
955          float* bq;          float* bq;
956          for (int i = 1; i < Samples; i++) {          for (int i = 1; i < Samples; i++) {
957              // recalculate biquad parameters if cutoff or resonance differ from previous sample point              // recalculate biquad parameters if cutoff or resonance differ from previous sample point
958              if (!(i & FILTER_UPDATE_MASK)) if (pEngine->pSynthesisParameters[Event::destination_vcfr][i] != prev_res ||              if (!(i & FILTER_UPDATE_MASK)) {
959                                                 pEngine->pSynthesisParameters[Event::destination_vcfc][i] != prev_cutoff) {                  if (pEngine->pSynthesisParameters[Event::destination_vcfr][i] != prev_res ||
960                  prev_cutoff = pEngine->pSynthesisParameters[Event::destination_vcfc][i];                      pEngine->pSynthesisParameters[Event::destination_vcfc][i] != prev_cutoff)
961                  prev_res    = pEngine->pSynthesisParameters[Event::destination_vcfr][i];                  {
962                  FilterLeft.SetParameters(&bqbase, &bqmain, prev_cutoff, prev_res, pEngine->SampleRate);                      prev_cutoff = pEngine->pSynthesisParameters[Event::destination_vcfc][i];
963                        prev_res    = pEngine->pSynthesisParameters[Event::destination_vcfr][i];
964                        FilterLeft.SetParameters(&bqbase, &bqmain, prev_cutoff, prev_res, pEngine->SampleRate);
965                        FilterRight.SetParameters(&bqbase, &bqmain, prev_cutoff, prev_res, pEngine->SampleRate);
966                    }
967              }              }
968    
969              //same as 'pEngine->pBasicFilterParameters[i] = bqbase;'              //same as 'pEngine->pBasicFilterParameters[i] = bqbase;'
970              bq    = (float*) &pEngine->pBasicFilterParameters[i];              bq    = (float*) &pEngine->pBasicFilterParameters[i];
971              bq[0] = bqbase.a1;              bq[0] = bqbase.b0;
972              bq[1] = bqbase.a2;              bq[1] = bqbase.b1;
973              bq[2] = bqbase.b0;              bq[2] = bqbase.b2;
974              bq[3] = bqbase.b1;              bq[3] = bqbase.a1;
975              bq[4] = bqbase.b2;              bq[4] = bqbase.a2;
976    
977              // same as 'pEngine->pMainFilterParameters[i] = bqmain;'              // same as 'pEngine->pMainFilterParameters[i] = bqmain;'
978              bq    = (float*) &pEngine->pMainFilterParameters[i];              bq    = (float*) &pEngine->pMainFilterParameters[i];
979              bq[0] = bqmain.a1;              bq[0] = bqmain.b0;
980              bq[1] = bqmain.a2;              bq[1] = bqmain.b1;
981              bq[2] = bqmain.b0;              bq[2] = bqmain.b2;
982              bq[3] = bqmain.b1;              bq[3] = bqmain.a1;
983              bq[4] = bqmain.b2;              bq[4] = bqmain.a2;
984          }          }
985      }      }
     #endif // ENABLE_FILTER  
986    
987      /**      /**
988       *  Interpolates the input audio data (no loop).       *  Synthesizes the current audio fragment for this voice.
989       *       *
990       *  @param Samples - number of sample points to be rendered in this audio       *  @param Samples - number of sample points to be rendered in this audio
991       *                   fragment cycle       *                   fragment cycle
992       *  @param pSrc    - pointer to input sample data       *  @param pSrc    - pointer to input sample data
993       *  @param Skip    - number of sample points to skip in output buffer       *  @param Skip    - number of sample points to skip in output buffer
994       */       */
995      void Voice::Interpolate(uint Samples, sample_t* pSrc, uint Skip) {      void Voice::Synthesize(uint Samples, sample_t* pSrc, uint Skip) {
996          int i = Skip;          RunSynthesisFunction(SynthesisMode, *this, Samples, pSrc, Skip);
   
         // 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]);  
             }  
         }  
997      }      }
998    
999      /**      /**
1000       *  Interpolates the input audio data, this method honors looping.       *  Immediately kill the voice. This method should not be used to kill
1001         *  a normal, active voice, because it doesn't take care of things like
1002         *  fading down the volume level to avoid clicks and regular processing
1003         *  until the kill event actually occured!
1004       *       *
1005       *  @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  
1006       */       */
1007      void Voice::InterpolateAndLoop(uint Samples, sample_t* pSrc, uint Skip) {      void Voice::KillImmediately() {
1008          int i = Skip;          if (DiskVoice && DiskStreamRef.State != Stream::state_unused) {
1009                pDiskThread->OrderDeletionOfStream(&DiskStreamRef);
         // FIXME: assuming either mono or stereo  
         if (pSample->Channels == 2) { // Stereo Sample  
             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);;  
                     }  
                 }  
             }  
1010          }          }
1011            Reset();
1012      }      }
1013    
1014      /**      /**
1015       *  Immediately kill the voice.       *  Kill the voice in regular sense. Let the voice render audio until
1016         *  the kill event actually occured and then fade down the volume level
1017         *  very quickly and let the voice die finally. Unlike a normal release
1018         *  of a voice, a kill process cannot be cancalled and is therefore
1019         *  usually used for voice stealing and key group conflicts.
1020         *
1021         *  @param itKillEvent - event which caused the voice to be killed
1022       */       */
1023      void Voice::Kill() {      void Voice::Kill(Pool<Event>::Iterator& itKillEvent) {
1024          if (DiskVoice && DiskStreamRef.State != Stream::state_unused) {          //FIXME: just two sanity checks for debugging, can be removed
1025              pDiskThread->OrderDeletionOfStream(&DiskStreamRef);          if (!itKillEvent) dmsg(1,("gig::Voice::Kill(): ERROR, !itKillEvent !!!\n"));
1026          }          if (itKillEvent && !itKillEvent.isValid()) dmsg(1,("gig::Voice::Kill(): ERROR, itKillEvent invalid !!!\n"));
1027          Reset();  
1028            if (itTriggerEvent && itKillEvent->FragmentPos() <= itTriggerEvent->FragmentPos()) return;
1029            this->itKillEvent = itKillEvent;
1030      }      }
1031    
1032  }} // namespace LinuxSampler::gig  }} // namespace LinuxSampler::gig
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