/[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 460 by schoenebeck, Mon Mar 14 22:35:44 2005 UTC revision 630 by persson, Sat Jun 11 14:51:49 2005 UTC
# Line 35  namespace LinuxSampler { namespace gig { Line 35  namespace LinuxSampler { namespace gig {
35      const int Voice::FILTER_UPDATE_MASK(CalculateFilterUpdateMask());      const int Voice::FILTER_UPDATE_MASK(CalculateFilterUpdateMask());
36    
37      float Voice::CalculateFilterCutoffCoeff() {      float Voice::CalculateFilterCutoffCoeff() {
38          return log(FILTER_CUTOFF_MIN / FILTER_CUTOFF_MAX);          return log(CONFIG_FILTER_CUTOFF_MIN / CONFIG_FILTER_CUTOFF_MAX);
39      }      }
40    
41      int Voice::CalculateFilterUpdateMask() {      int Voice::CalculateFilterUpdateMask() {
42          if (FILTER_UPDATE_PERIOD <= 0) return 0;          if (CONFIG_FILTER_UPDATE_STEPS <= 0) return 0;
43          int power_of_two;          int power_of_two;
44          for (power_of_two = 0; 1<<power_of_two < FILTER_UPDATE_PERIOD; power_of_two++);          for (power_of_two = 0; 1<<power_of_two < CONFIG_FILTER_UPDATE_STEPS; power_of_two++);
45          return (1 << power_of_two) - 1;          return (1 << power_of_two) - 1;
46      }      }
47    
# Line 61  namespace LinuxSampler { namespace gig { Line 61  namespace LinuxSampler { namespace gig {
61          KeyGroup = 0;          KeyGroup = 0;
62          SynthesisMode = 0; // set all mode bits to 0 first          SynthesisMode = 0; // set all mode bits to 0 first
63          // select synthesis implementation (currently either pure C++ or MMX+SSE(1))          // select synthesis implementation (currently either pure C++ or MMX+SSE(1))
64          #if ARCH_X86          #if CONFIG_ASM && ARCH_X86
65          SYNTHESIS_MODE_SET_IMPLEMENTATION(SynthesisMode, Features::supportsMMX() && Features::supportsSSE());          SYNTHESIS_MODE_SET_IMPLEMENTATION(SynthesisMode, Features::supportsMMX() && Features::supportsSSE());
66          #else          #else
67          SYNTHESIS_MODE_SET_IMPLEMENTATION(SynthesisMode, false);          SYNTHESIS_MODE_SET_IMPLEMENTATION(SynthesisMode, false);
# Line 134  namespace LinuxSampler { namespace gig { Line 134  namespace LinuxSampler { namespace gig {
134             dmsg(1,("voice::trigger: !pInstrument\n"));             dmsg(1,("voice::trigger: !pInstrument\n"));
135             exit(EXIT_FAILURE);             exit(EXIT_FAILURE);
136          }          }
137          if (itNoteOnEvent->FragmentPos() > pEngine->MaxSamplesPerCycle) { // FIXME: should be removed before the final release (purpose: just a sanity check for debugging)          #if CONFIG_DEVMODE
138            if (itNoteOnEvent->FragmentPos() > pEngine->MaxSamplesPerCycle) { // just a sanity check for debugging
139              dmsg(1,("Voice::Trigger(): ERROR, TriggerDelay > Totalsamples\n"));              dmsg(1,("Voice::Trigger(): ERROR, TriggerDelay > Totalsamples\n"));
140          }          }
141            #endif // CONFIG_DEVMODE
142    
143          Type            = type_normal;          Type            = type_normal;
144          MIDIKey         = itNoteOnEvent->Param.Note.Key;          MIDIKey         = itNoteOnEvent->Param.Note.Key;
145          pRegion         = pInstrument->GetRegion(MIDIKey);          pRegion         = pInstrument->GetRegion(MIDIKey);
146          PlaybackState   = playback_state_ram; // we always start playback from RAM cache and switch then to disk if needed          PlaybackState   = playback_state_init; // mark voice as triggered, but no audio rendered yet
147          Delay           = itNoteOnEvent->FragmentPos();          Delay           = itNoteOnEvent->FragmentPos();
148          itTriggerEvent  = itNoteOnEvent;          itTriggerEvent  = itNoteOnEvent;
149          itKillEvent     = Pool<Event>::Iterator();          itKillEvent     = Pool<Event>::Iterator();
# Line 267  namespace LinuxSampler { namespace gig { Line 269  namespace LinuxSampler { namespace gig {
269          pSample = pDimRgn->pSample; // sample won't change until the voice is finished          pSample = pDimRgn->pSample; // sample won't change until the voice is finished
270          if (!pSample || !pSample->SamplesTotal) return -1; // no need to continue if sample is silent          if (!pSample || !pSample->SamplesTotal) return -1; // no need to continue if sample is silent
271    
272            // calculate volume
273            const double velocityAttenuation = pDimRgn->GetVelocityAttenuation(itNoteOnEvent->Param.Note.Velocity);
274    
275            Volume = velocityAttenuation / 32768.0f; // we downscale by 32768 to convert from int16 value range to DSP value range (which is -1.0..1.0)
276    
277            Volume *= pDimRgn->SampleAttenuation;
278    
279            // the volume of release triggered samples depends on note length
280            if (ReleaseTriggerVoice) {
281                float noteLength = float(pEngine->FrameTime + Delay -
282                                         pEngineChannel->pMIDIKeyInfo[MIDIKey].NoteOnTime) / pEngine->SampleRate;
283                float attenuation = 1 - 0.01053 * (256 >> pDimRgn->ReleaseTriggerDecay) * noteLength;
284                if (attenuation <= 0) return -1;
285                Volume *= attenuation;
286            }
287    
288          // select channel mode (mono or stereo)          // select channel mode (mono or stereo)
289          SYNTHESIS_MODE_SET_CHANNELS(SynthesisMode, pSample->Channels == 2);          SYNTHESIS_MODE_SET_CHANNELS(SynthesisMode, pSample->Channels == 2);
290    
# Line 296  namespace LinuxSampler { namespace gig { Line 314  namespace LinuxSampler { namespace gig {
314          DiskVoice          = cachedsamples < pSample->SamplesTotal;          DiskVoice          = cachedsamples < pSample->SamplesTotal;
315    
316          if (DiskVoice) { // voice to be streamed from disk          if (DiskVoice) { // voice to be streamed from disk
317              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)
318    
319              // 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
320              if (pSample->Loops && pSample->LoopEnd <= MaxRAMPos) {              if (pSample->Loops && pSample->LoopEnd <= MaxRAMPos) {
# Line 331  namespace LinuxSampler { namespace gig { Line 349  namespace LinuxSampler { namespace gig {
349              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
350          }          }
351    
352          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)          // the length of the decay and release curves are dependent on the velocity
353            const double velrelease = 1 / pDimRgn->GetVelocityRelease(itNoteOnEvent->Param.Note.Velocity);
         Volume *= pDimRgn->SampleAttenuation;  
354    
355          // setup EG 1 (VCA EG)          // setup EG 1 (VCA EG)
356          {          {
# Line 364  namespace LinuxSampler { namespace gig { Line 381  namespace LinuxSampler { namespace gig {
381                            pDimRgn->EG1Attack + eg1attack,                            pDimRgn->EG1Attack + eg1attack,
382                            pDimRgn->EG1Hold,                            pDimRgn->EG1Hold,
383                            pSample->LoopStart,                            pSample->LoopStart,
384                            pDimRgn->EG1Decay1 + eg1decay,                            (pDimRgn->EG1Decay1 + eg1decay) * velrelease,
385                            pDimRgn->EG1Decay2 + eg1decay,                            (pDimRgn->EG1Decay2 + eg1decay) * velrelease,
386                            pDimRgn->EG1InfiniteSustain,                            pDimRgn->EG1InfiniteSustain,
387                            pDimRgn->EG1Sustain,                            pDimRgn->EG1Sustain,
388                            pDimRgn->EG1Release + eg1release,                            (pDimRgn->EG1Release + eg1release) * velrelease,
389                            // the SSE synthesis implementation requires                            // the SSE synthesis implementation requires
390                            // the vca start to be 16 byte aligned                            // the vca start to be 16 byte aligned
391                            SYNTHESIS_MODE_GET_IMPLEMENTATION(SynthesisMode) ?                            SYNTHESIS_MODE_GET_IMPLEMENTATION(SynthesisMode) ?
392                            Delay & 0xfffffffc : Delay);                            Delay & 0xfffffffc : Delay,
393                              velocityAttenuation);
394          }          }
395    
396    
# Line 405  namespace LinuxSampler { namespace gig { Line 423  namespace LinuxSampler { namespace gig {
423                            pDimRgn->EG2Attack + eg2attack,                            pDimRgn->EG2Attack + eg2attack,
424                            false,                            false,
425                            pSample->LoopStart,                            pSample->LoopStart,
426                            pDimRgn->EG2Decay1 + eg2decay,                            (pDimRgn->EG2Decay1 + eg2decay) * velrelease,
427                            pDimRgn->EG2Decay2 + eg2decay,                            (pDimRgn->EG2Decay2 + eg2decay) * velrelease,
428                            pDimRgn->EG2InfiniteSustain,                            pDimRgn->EG2InfiniteSustain,
429                            pDimRgn->EG2Sustain,                            pDimRgn->EG2Sustain,
430                            pDimRgn->EG2Release + eg2release,                            (pDimRgn->EG2Release + eg2release) * velrelease,
431                            Delay);                            Delay,
432                              velocityAttenuation);
433          }          }
434    
435    
# Line 535  namespace LinuxSampler { namespace gig { Line 554  namespace LinuxSampler { namespace gig {
554          }          }
555    
556    
557          #if FORCE_FILTER_USAGE          #if CONFIG_FORCE_FILTER
558          const bool bUseFilter = true;          const bool bUseFilter = true;
559          #else // use filter only if instrument file told so          #else // use filter only if instrument file told so
560          const bool bUseFilter = pDimRgn->VCFEnabled;          const bool bUseFilter = pDimRgn->VCFEnabled;
561          #endif // FORCE_FILTER_USAGE          #endif // CONFIG_FORCE_FILTER
562          SYNTHESIS_MODE_SET_FILTER(SynthesisMode, bUseFilter);          SYNTHESIS_MODE_SET_FILTER(SynthesisMode, bUseFilter);
563          if (bUseFilter) {          if (bUseFilter) {
564              #ifdef OVERRIDE_FILTER_CUTOFF_CTRL              #ifdef CONFIG_OVERRIDE_CUTOFF_CTRL
565              VCFCutoffCtrl.controller = OVERRIDE_FILTER_CUTOFF_CTRL;              VCFCutoffCtrl.controller = CONFIG_OVERRIDE_CUTOFF_CTRL;
566              #else // use the one defined in the instrument file              #else // use the one defined in the instrument file
567              switch (pDimRgn->VCFCutoffController) {              switch (pDimRgn->VCFCutoffController) {
568                  case ::gig::vcf_cutoff_ctrl_modwheel:                  case ::gig::vcf_cutoff_ctrl_modwheel:
# Line 579  namespace LinuxSampler { namespace gig { Line 598  namespace LinuxSampler { namespace gig {
598                      VCFCutoffCtrl.controller = 0;                      VCFCutoffCtrl.controller = 0;
599                      break;                      break;
600              }              }
601              #endif // OVERRIDE_FILTER_CUTOFF_CTRL              #endif // CONFIG_OVERRIDE_CUTOFF_CTRL
602    
603              #ifdef OVERRIDE_FILTER_RES_CTRL              #ifdef CONFIG_OVERRIDE_RESONANCE_CTRL
604              VCFResonanceCtrl.controller = OVERRIDE_FILTER_RES_CTRL;              VCFResonanceCtrl.controller = CONFIG_OVERRIDE_RESONANCE_CTRL;
605              #else // use the one defined in the instrument file              #else // use the one defined in the instrument file
606              switch (pDimRgn->VCFResonanceController) {              switch (pDimRgn->VCFResonanceController) {
607                  case ::gig::vcf_res_ctrl_genpurpose3:                  case ::gig::vcf_res_ctrl_genpurpose3:
# Line 601  namespace LinuxSampler { namespace gig { Line 620  namespace LinuxSampler { namespace gig {
620                  default:                  default:
621                      VCFResonanceCtrl.controller = 0;                      VCFResonanceCtrl.controller = 0;
622              }              }
623              #endif // OVERRIDE_FILTER_RES_CTRL              #endif // CONFIG_OVERRIDE_RESONANCE_CTRL
624    
625              #ifndef OVERRIDE_FILTER_TYPE              #ifndef CONFIG_OVERRIDE_FILTER_TYPE
626              FilterLeft.SetType(pDimRgn->VCFType);              FilterLeft.SetType(pDimRgn->VCFType);
627              FilterRight.SetType(pDimRgn->VCFType);              FilterRight.SetType(pDimRgn->VCFType);
628              #else // override filter type              #else // override filter type
629              FilterLeft.SetType(OVERRIDE_FILTER_TYPE);              FilterLeft.SetType(CONFIG_OVERRIDE_FILTER_TYPE);
630              FilterRight.SetType(OVERRIDE_FILTER_TYPE);              FilterRight.SetType(CONFIG_OVERRIDE_FILTER_TYPE);
631              #endif // OVERRIDE_FILTER_TYPE              #endif // CONFIG_OVERRIDE_FILTER_TYPE
632    
633              VCFCutoffCtrl.value    = pEngineChannel->ControllerTable[VCFCutoffCtrl.controller];              VCFCutoffCtrl.value    = pEngineChannel->ControllerTable[VCFCutoffCtrl.controller];
634              VCFResonanceCtrl.value = pEngineChannel->ControllerTable[VCFResonanceCtrl.controller];              VCFResonanceCtrl.value = pEngineChannel->ControllerTable[VCFResonanceCtrl.controller];
635    
636              // calculate cutoff frequency              // calculate cutoff frequency
637              float cutoff = (!VCFCutoffCtrl.controller)              float cutoff = (!VCFCutoffCtrl.controller)
638                  ? exp((float) (127 - itNoteOnEvent->Param.Note.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) * CONFIG_FILTER_CUTOFF_MAX
639                  : exp((float) VCFCutoffCtrl.value * 0.00787402f * FILTER_CUTOFF_COEFF) * FILTER_CUTOFF_MAX;                  : exp((float) VCFCutoffCtrl.value * 0.00787402f * FILTER_CUTOFF_COEFF) * CONFIG_FILTER_CUTOFF_MAX;
640    
641              // calculate resonance              // calculate resonance
642              float resonance = (float) VCFResonanceCtrl.value * 0.00787f;   // 0.0..1.0              float resonance = (float) VCFResonanceCtrl.value * 0.00787f;   // 0.0..1.0
# Line 626  namespace LinuxSampler { namespace gig { Line 645  namespace LinuxSampler { namespace gig {
645              }              }
646              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)
647    
648              VCFCutoffCtrl.fvalue    = cutoff - FILTER_CUTOFF_MIN;              VCFCutoffCtrl.fvalue    = cutoff - CONFIG_FILTER_CUTOFF_MIN;
649              VCFResonanceCtrl.fvalue = resonance;              VCFResonanceCtrl.fvalue = resonance;
650    
651              FilterUpdateCounter = -1;              FilterUpdateCounter = -1;
# Line 686  namespace LinuxSampler { namespace gig { Line 705  namespace LinuxSampler { namespace gig {
705    
706          switch (this->PlaybackState) {          switch (this->PlaybackState) {
707    
708                case playback_state_init:
709                    this->PlaybackState = playback_state_ram; // we always start playback from RAM cache and switch then to disk if needed
710                    // no break - continue with playback_state_ram
711    
712              case playback_state_ram: {              case playback_state_ram: {
713                      if (RAMLoop) SYNTHESIS_MODE_SET_LOOP(SynthesisMode, true); // enable looping                      if (RAMLoop) SYNTHESIS_MODE_SET_LOOP(SynthesisMode, true); // enable looping
714    
# Line 723  namespace LinuxSampler { namespace gig { Line 746  namespace LinuxSampler { namespace gig {
746    
747                      // 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)
748                      if (DiskStreamRef.State == Stream::state_end) {                      if (DiskStreamRef.State == Stream::state_end) {
749                          const int maxSampleWordsPerCycle = (pEngine->MaxSamplesPerCycle << MAX_PITCH) * pSample->Channels + 6; // +6 for the interpolator algorithm                          const int maxSampleWordsPerCycle = (pEngine->MaxSamplesPerCycle << CONFIG_MAX_PITCH) * pSample->Channels + 6; // +6 for the interpolator algorithm
750                          if (sampleWordsLeftToRead <= maxSampleWordsPerCycle) {                          if (sampleWordsLeftToRead <= maxSampleWordsPerCycle) {
751                              // remember how many sample words there are before any silence has been added                              // remember how many sample words there are before any silence has been added
752                              if (RealSampleWordsLeftToRead < 0) RealSampleWordsLeftToRead = sampleWordsLeftToRead;                              if (RealSampleWordsLeftToRead < 0) RealSampleWordsLeftToRead = sampleWordsLeftToRead;
# Line 910  namespace LinuxSampler { namespace gig { Line 933  namespace LinuxSampler { namespace gig {
933                  // calculate the influence length of this event (in sample points)                  // calculate the influence length of this event (in sample points)
934                  uint end = (itNextCutoffEvent) ? itNextCutoffEvent->FragmentPos() : Samples;                  uint end = (itNextCutoffEvent) ? itNextCutoffEvent->FragmentPos() : Samples;
935    
936                  cutoff = exp((float) itCutoffEvent->Param.CC.Value * 0.00787402f * FILTER_CUTOFF_COEFF) * FILTER_CUTOFF_MAX - FILTER_CUTOFF_MIN;                  cutoff = exp((float) itCutoffEvent->Param.CC.Value * 0.00787402f * FILTER_CUTOFF_COEFF) * CONFIG_FILTER_CUTOFF_MAX - CONFIG_FILTER_CUTOFF_MIN;
937    
938                  // apply cutoff frequency to the cutoff parameter sequence                  // apply cutoff frequency to the cutoff parameter sequence
939                  for (uint i = itCutoffEvent->FragmentPos(); i < end; i++) {                  for (uint i = itCutoffEvent->FragmentPos(); i < end; i++) {
# Line 963  namespace LinuxSampler { namespace gig { Line 986  namespace LinuxSampler { namespace gig {
986          biquad_param_t bqmain;          biquad_param_t bqmain;
987          float prev_cutoff = pEngine->pSynthesisParameters[Event::destination_vcfc][0];          float prev_cutoff = pEngine->pSynthesisParameters[Event::destination_vcfc][0];
988          float prev_res    = pEngine->pSynthesisParameters[Event::destination_vcfr][0];          float prev_res    = pEngine->pSynthesisParameters[Event::destination_vcfr][0];
989          FilterLeft.SetParameters( &bqbase, &bqmain, prev_cutoff + FILTER_CUTOFF_MIN, prev_res, pEngine->SampleRate);          FilterLeft.SetParameters( &bqbase, &bqmain, prev_cutoff + CONFIG_FILTER_CUTOFF_MIN, prev_res, pEngine->SampleRate);
990          FilterRight.SetParameters(&bqbase, &bqmain, prev_cutoff + FILTER_CUTOFF_MIN, prev_res, pEngine->SampleRate);          FilterRight.SetParameters(&bqbase, &bqmain, prev_cutoff + CONFIG_FILTER_CUTOFF_MIN, prev_res, pEngine->SampleRate);
991          pEngine->pBasicFilterParameters[0] = bqbase;          pEngine->pBasicFilterParameters[0] = bqbase;
992          pEngine->pMainFilterParameters[0]  = bqmain;          pEngine->pMainFilterParameters[0]  = bqmain;
993    
# Line 977  namespace LinuxSampler { namespace gig { Line 1000  namespace LinuxSampler { namespace gig {
1000                  {                  {
1001                      prev_cutoff = pEngine->pSynthesisParameters[Event::destination_vcfc][i];                      prev_cutoff = pEngine->pSynthesisParameters[Event::destination_vcfc][i];
1002                      prev_res    = pEngine->pSynthesisParameters[Event::destination_vcfr][i];                      prev_res    = pEngine->pSynthesisParameters[Event::destination_vcfr][i];
1003                      FilterLeft.SetParameters( &bqbase, &bqmain, prev_cutoff + FILTER_CUTOFF_MIN, prev_res, pEngine->SampleRate);                      FilterLeft.SetParameters( &bqbase, &bqmain, prev_cutoff + CONFIG_FILTER_CUTOFF_MIN, prev_res, pEngine->SampleRate);
1004                      FilterRight.SetParameters(&bqbase, &bqmain, prev_cutoff + FILTER_CUTOFF_MIN, prev_res, pEngine->SampleRate);                      FilterRight.SetParameters(&bqbase, &bqmain, prev_cutoff + CONFIG_FILTER_CUTOFF_MIN, prev_res, pEngine->SampleRate);
1005                  }                  }
1006              }              }
1007    
# Line 1037  namespace LinuxSampler { namespace gig { Line 1060  namespace LinuxSampler { namespace gig {
1060       *  @param itKillEvent - event which caused the voice to be killed       *  @param itKillEvent - event which caused the voice to be killed
1061       */       */
1062      void Voice::Kill(Pool<Event>::Iterator& itKillEvent) {      void Voice::Kill(Pool<Event>::Iterator& itKillEvent) {
1063          //FIXME: just two sanity checks for debugging, can be removed          #if CONFIG_DEVMODE
1064          if (!itKillEvent) dmsg(1,("gig::Voice::Kill(): ERROR, !itKillEvent !!!\n"));          if (!itKillEvent) dmsg(1,("gig::Voice::Kill(): ERROR, !itKillEvent !!!\n"));
1065          if (itKillEvent && !itKillEvent.isValid()) dmsg(1,("gig::Voice::Kill(): ERROR, itKillEvent invalid !!!\n"));          if (itKillEvent && !itKillEvent.isValid()) dmsg(1,("gig::Voice::Kill(): ERROR, itKillEvent invalid !!!\n"));
1066            #endif // CONFIG_DEVMODE
1067    
1068          if (itTriggerEvent && itKillEvent->FragmentPos() <= itTriggerEvent->FragmentPos()) return;          if (itTriggerEvent && itKillEvent->FragmentPos() <= itTriggerEvent->FragmentPos()) return;
1069          this->itKillEvent = itKillEvent;          this->itKillEvent = itKillEvent;
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