/[svn]/linuxsampler/trunk/src/engines/sfz/Voice.cpp
ViewVC logotype

Diff of /linuxsampler/trunk/src/engines/sfz/Voice.cpp

Parent Directory Parent Directory | Revision Log Revision Log | View Patch Patch

revision 2045 by persson, Sun Jan 10 13:22:19 2010 UTC revision 2175 by persson, Mon Apr 25 08:12:36 2011 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) 2005-2008 Christian Schoenebeck                         *   *   Copyright (C) 2005 - 2008 Christian Schoenebeck                       *
7   *   Copyright (C) 2009-2010 Christian Schoenebeck and Grigor Iliev        *   *   Copyright (C) 2009 - 2011 Christian Schoenebeck and Grigor Iliev      *
8   *                                                                         *   *                                                                         *
9   *   This program is free software; you can redistribute it and/or modify  *   *   This program is free software; you can redistribute it and/or modify  *
10   *   it under the terms of the GNU General Public License as published by  *   *   it under the terms of the GNU General Public License as published by  *
# Line 27  Line 27 
27  #include "Engine.h"  #include "Engine.h"
28  #include "EngineChannel.h"  #include "EngineChannel.h"
29    
30    #define LN_10_DIV_20 0.115129254649702
31    
32  namespace LinuxSampler { namespace sfz {  namespace LinuxSampler { namespace sfz {
33    
34      Voice::Voice() {      Voice::Voice() {
# Line 67  namespace LinuxSampler { namespace sfz { Line 69  namespace LinuxSampler { namespace sfz {
69      Voice::RegionInfo Voice::GetRegionInfo() {      Voice::RegionInfo Voice::GetRegionInfo() {
70          RegionInfo ri;          RegionInfo ri;
71          ri.UnityNote = pRegion->pitch_keycenter;          ri.UnityNote = pRegion->pitch_keycenter;
72          ri.FineTune  = pRegion->tune;          ri.FineTune  = pRegion->tune + pRegion->transpose * 100;
73          ri.Pan       = int(pRegion->pan * 0.63); // convert from -100..100 to -64..63          ri.Pan       = int(pRegion->pan * 0.63); // convert from -100..100 to -64..63
74          ri.SampleStartOffset = 0; // TODO:          ri.SampleStartOffset = 0; // TODO:
75    
# Line 76  namespace LinuxSampler { namespace sfz { Line 78  namespace LinuxSampler { namespace sfz {
78          ri.EG1Hold             = pRegion->ampeg_hold;          ri.EG1Hold             = pRegion->ampeg_hold;
79          ri.EG1Decay1           = pRegion->ampeg_decay;          ri.EG1Decay1           = pRegion->ampeg_decay;
80          ri.EG1Decay2           = pRegion->ampeg_decay;          ri.EG1Decay2           = pRegion->ampeg_decay;
81          ri.EG1Sustain          = pRegion->ampeg_sustain;          ri.EG1Sustain          = pRegion->ampeg_sustain * 10;
82          ri.EG1InfiniteSustain  = true;          ri.EG1InfiniteSustain  = true;
83          ri.EG1Release          = pRegion->ampeg_release;          ri.EG1Release          = pRegion->ampeg_release;
84    
85          ri.EG2PreAttack        = pRegion->fileg_start;          ri.EG2PreAttack        = pRegion->fileg_start * 10;
86          ri.EG2Attack           = pRegion->fileg_attack;          ri.EG2Attack           = pRegion->fileg_attack;
87          //ri.EG2Hold             = pRegion->fileg_hold; // TODO:          //ri.EG2Hold             = pRegion->fileg_hold; // TODO:
88          ri.EG2Decay1           = pRegion->fileg_decay;          ri.EG2Decay1           = pRegion->fileg_decay;
89          ri.EG2Decay2           = pRegion->fileg_decay;          ri.EG2Decay2           = pRegion->fileg_decay;
90          ri.EG2Sustain          = pRegion->fileg_sustain;          ri.EG2Sustain          = pRegion->fileg_sustain * 10;
91          ri.EG2InfiniteSustain  = true;          ri.EG2InfiniteSustain  = true;
92          ri.EG2Release          = pRegion->fileg_release;          ri.EG2Release          = pRegion->fileg_release;
93    
94          ri.EG3Attack     = pRegion->pitcheg_attack;          ri.EG3Attack     = pRegion->pitcheg_attack;
95          ri.EG3Depth      = 0; // TODO:          ri.EG3Depth      = 0; // TODO:
96          ri.VCFEnabled    = false; // TODO:          ri.VCFEnabled    = pRegion->cutoff;
97          ri.VCFType       = ::gig::vcf_type_lowpass; // TODO:          switch (pRegion->fil_type) {
98          ri.VCFResonance  = 0; // TODO:          case ::sfz::LPF_1P:
99                ri.VCFType = Filter::vcf_type_1p_lowpass;
100          ri.ReleaseTriggerDecay = 0;              break;
101            case ::sfz::LPF_2P:
102                ri.VCFType = Filter::vcf_type_2p_lowpass;
103                break;
104            case ::sfz::LPF_4P:
105                ri.VCFType = Filter::vcf_type_4p_lowpass;
106                break;
107            case ::sfz::LPF_6P:
108                ri.VCFType = Filter::vcf_type_6p_lowpass;
109                break;
110            case ::sfz::HPF_1P:
111                ri.VCFType = Filter::vcf_type_1p_highpass;
112                break;
113            case ::sfz::HPF_2P:
114                ri.VCFType = Filter::vcf_type_2p_highpass;
115                break;
116            case ::sfz::HPF_4P:
117                ri.VCFType = Filter::vcf_type_4p_highpass;
118                break;
119            case ::sfz::HPF_6P:
120                ri.VCFType = Filter::vcf_type_6p_highpass;
121                break;
122            case ::sfz::BPF_1P:
123            case ::sfz::BPF_2P:
124                ri.VCFType = Filter::vcf_type_2p_bandpass;
125                break;
126            case ::sfz::BRF_1P:
127            case ::sfz::BRF_2P:
128                ri.VCFType = Filter::vcf_type_2p_bandreject;
129                break;
130            case ::sfz::APF_1P:
131            case ::sfz::PKF_2P:
132            default:
133                ri.VCFEnabled = false;
134                break;
135            }
136    
137            ri.VCFResonance  = pRegion->resonance;
138    
139            // rt_decay is in dB. Precalculate a suitable value for exp in
140            // GetReleaseTriggerAttenuation: -ln(10) / 20 * rt_decay
141            ri.ReleaseTriggerDecay = -LN_10_DIV_20 * pRegion->rt_decay;
142    
143          return ri;          return ri;
144      }      }
# Line 109  namespace LinuxSampler { namespace sfz { Line 152  namespace LinuxSampler { namespace sfz {
152      }      }
153    
154      double Voice::GetSampleAttenuation() {      double Voice::GetSampleAttenuation() {
155          return 1.0; // TODO:          return exp(LN_10_DIV_20 * pRegion->volume);
156      }      }
157    
158      double Voice::GetVelocityAttenuation(uint8_t MIDIKeyVelocity) {      double Voice::GetVelocityAttenuation(uint8_t MIDIKeyVelocity) {
159          return double(MIDIKeyVelocity) / 127.0f; // TODO:          return pRegion->amp_velcurve[MIDIKeyVelocity];
160      }      }
161    
162      double Voice::GetVelocityRelease(uint8_t MIDIKeyVelocity) {      double Voice::GetVelocityRelease(uint8_t MIDIKeyVelocity) {
# Line 130  namespace LinuxSampler { namespace sfz { Line 173  namespace LinuxSampler { namespace sfz {
173      }      }
174    
175      void Voice::ProcessCutoffEvent(RTList<Event>::Iterator& itEvent) {      void Voice::ProcessCutoffEvent(RTList<Event>::Iterator& itEvent) {
176          /*int ccvalue = itEvent->Param.CC.Value;          int ccvalue = itEvent->Param.CC.Value;
177          if (VCFCutoffCtrl.value == ccvalue) return;          if (VCFCutoffCtrl.value == ccvalue) return;
178          VCFCutoffCtrl.value == ccvalue;          VCFCutoffCtrl.value = ccvalue;
179          if (pRegion->VCFCutoffControllerInvert)  ccvalue = 127 - ccvalue;  
180          if (ccvalue < pRegion->VCFVelocityScale) ccvalue = pRegion->VCFVelocityScale;          float cutoff = CutoffBase * RTMath::CentsToFreqRatioUnlimited(
181          float cutoff = CutoffBase * float(ccvalue);              ccvalue / 127.0f * pRegion->cutoff_oncc[VCFCutoffCtrl.controller]);
182          if (cutoff > 127.0f) cutoff = 127.0f;          if (cutoff > 0.49 * pEngine->SampleRate) cutoff = 0.49 * pEngine->SampleRate;
183    
184          VCFCutoffCtrl.fvalue = cutoff; // needed for initialization of fFinalCutoff next time          VCFCutoffCtrl.fvalue = cutoff; // needed for initialization of fFinalCutoff next time
185          fFinalCutoff = cutoff;*/ // TODO: ^^^          fFinalCutoff = cutoff;
186      }      }
187    
188      double Voice::CalculateCrossfadeVolume(uint8_t MIDIKeyVelocity) {      double Voice::CalculateCrossfadeVolume(uint8_t MIDIKeyVelocity) {
# Line 202  namespace LinuxSampler { namespace sfz { Line 245  namespace LinuxSampler { namespace sfz {
245          return eg;          return eg;
246      }      }
247    
248      double Voice::GetEG2ControllerValue(uint8_t MIDIKeyVelocity) {      void Voice::TriggerEG1(const EGInfo& egInfo, double velrelease, double velocityAttenuation, uint sampleRate, uint8_t velocity) {
249    
250            // TODO: controller modulation
251    
252            // first check if there is a v2 EG for amplitude
253            for (int i = 0 ; i < pRegion->eg.size() ; i++) {
254                if (pRegion->eg[i].amplitude > 0) {
255                    // TODO: actually use the value of the amplitude parameter
256                    pEG1 = &EG1;
257                    EG1.trigger(pRegion->eg[i], sampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE, velocity);
258                    return;
259                }
260            }
261    
262            // otherwise use the v1 EGADSR
263            pEG1 = &EGADSR1;
264            EGADSR1.trigger(uint(RgnInfo.EG1PreAttack),
265                            RgnInfo.EG1Attack,
266                            RgnInfo.EG1Hold,
267                            RgnInfo.EG1Decay1,
268                            uint(RgnInfo.EG1Sustain),
269                            RgnInfo.EG1Release,
270                            sampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
271         }
272    
273         double Voice::GetEG2ControllerValue(uint8_t MIDIKeyVelocity) {
274          /*double eg2controllervalue = 0;          /*double eg2controllervalue = 0;
275          switch (pRegion->EG2Controller.type) {          switch (pRegion->EG2Controller.type) {
276              case ::gig::eg2_ctrl_t::type_none: // no controller defined              case ::gig::eg2_ctrl_t::type_none: // no controller defined
# Line 238  namespace LinuxSampler { namespace sfz { Line 306  namespace LinuxSampler { namespace sfz {
306          return eg;          return eg;
307      }      }
308    
309        void Voice::TriggerEG2(const EGInfo& egInfo, double velrelease, double velocityAttenuation, uint sampleRate, uint8_t velocity) {
310    
311            // TODO: the sfz filter EG should modulate cents, not hertz,
312            // so we can't use the EG or EGADSR as it is. Disable for now.
313    
314            pEG2 = &EGADSR2;
315            EGADSR2.trigger(0,
316                            0,
317                            false,
318                            0,
319                            1000,
320                            0,
321                            sampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
322        }
323    
324      void Voice::InitLFO1() {      void Voice::InitLFO1() {
325          /*uint16_t lfo1_internal_depth;          /*uint16_t lfo1_internal_depth;
326          switch (pRegion->LFO1Controller) {          switch (pRegion->LFO1Controller) {
# Line 374  namespace LinuxSampler { namespace sfz { Line 457  namespace LinuxSampler { namespace sfz {
457      }      }
458    
459      float Voice::CalculateCutoffBase(uint8_t MIDIKeyVelocity) {      float Voice::CalculateCutoffBase(uint8_t MIDIKeyVelocity) {
460          /*float cutoff = pRegion->GetVelocityCutoff(MIDIKeyVelocity);          float cutoff = *pRegion->cutoff;
461          if (pRegion->VCFKeyboardTracking) {          cutoff *= RTMath::CentsToFreqRatioUnlimited(
462              cutoff *= exp((MIDIKeyVelocity - pRegion->VCFKeyboardTrackingBreakpoint) * 0.057762265f); // (ln(2) / 12)              MIDIKeyVelocity / 127.0f * pRegion->fil_veltrack +
463          }              (MIDIKey - pRegion->fil_keycenter) * pRegion->fil_keytrack);
464          return cutoff;*/ // TODO: ^^^          return cutoff;
         return 1.0f;  
465      }      }
466    
467      float Voice::CalculateFinalCutoff(float cutoffBase) {      float Voice::CalculateFinalCutoff(float cutoffBase) {
468          /*int cvalue;          float cutoff;
469          if (VCFCutoffCtrl.controller) {          if (VCFCutoffCtrl.controller) {
470              cvalue = GetSfzEngineChannel()->ControllerTable[VCFCutoffCtrl.controller];              int ccvalue = GetSfzEngineChannel()->ControllerTable[VCFCutoffCtrl.controller];
471              if (pRegion->VCFCutoffControllerInvert) cvalue = 127 - cvalue;              cutoff = CutoffBase * RTMath::CentsToFreqRatioUnlimited(
472              // VCFVelocityScale in this case means Minimum cutoff                  ccvalue / 127.0f * pRegion->cutoff_oncc[VCFCutoffCtrl.controller]);
473              if (cvalue < pRegion->VCFVelocityScale) cvalue = pRegion->VCFVelocityScale;          } else {
474                cutoff = cutoffBase;
475          }          }
476          else {          if (cutoff > 0.49 * pEngine->SampleRate) cutoff = 0.49 * pEngine->SampleRate;
477              cvalue = pRegion->VCFCutoff;          return cutoff;
         }  
         float fco = cutoffBase * float(cvalue);  
         if (fco > 127.0f) fco = 127.0f;  
   
         return fco;*/ // TODO: ^^^  
         return 127.0f;  
478      }      }
479    
480      uint8_t Voice::GetVCFCutoffCtrl() {      uint8_t Voice::GetVCFCutoffCtrl() {
481          /*uint8_t ctrl;          // TODO: the sfz format allows several CC for the same
482          switch (pRegion->VCFCutoffController) {          // modulation destination. The Voice interface needs to be
483              case ::gig::vcf_cutoff_ctrl_modwheel:          // changed to support that.
484                  ctrl = 1;          if (pRegion->cutoff_cc) return pRegion->cutoff_cc;
485                  break;          else if (pRegion->cutoff_chanaft) return 128;
             case ::gig::vcf_cutoff_ctrl_effect1:  
                 ctrl = 12;  
                 break;  
             case ::gig::vcf_cutoff_ctrl_effect2:  
                 ctrl = 13;  
                 break;  
             case ::gig::vcf_cutoff_ctrl_breath:  
                 ctrl = 2;  
                 break;  
             case ::gig::vcf_cutoff_ctrl_foot:  
                 ctrl = 4;  
                 break;  
             case ::gig::vcf_cutoff_ctrl_sustainpedal:  
                 ctrl = 64;  
                 break;  
             case ::gig::vcf_cutoff_ctrl_softpedal:  
                 ctrl = 67;  
                 break;  
             case ::gig::vcf_cutoff_ctrl_genpurpose7:  
                 ctrl = 82;  
                 break;  
             case ::gig::vcf_cutoff_ctrl_genpurpose8:  
                 ctrl = 83;  
                 break;  
             case ::gig::vcf_cutoff_ctrl_aftertouch:  
                 ctrl = 128;  
                 break;  
             case ::gig::vcf_cutoff_ctrl_none:  
             default:  
                 ctrl = 0;  
                 break;  
         }  
   
         return ctrl;*/ // TODO: ^^^  
486          return 0;          return 0;
487      }      }
488    
# Line 467  namespace LinuxSampler { namespace sfz { Line 510  namespace LinuxSampler { namespace sfz {
510          return 0;          return 0;
511      }      }
512    
513        float Voice::GetReleaseTriggerAttenuation(float noteLength) {
514            // pow(10, -rt_decay * noteLength / 20):
515            return expf(RgnInfo.ReleaseTriggerDecay * noteLength);
516        }
517    
518        void Voice::ProcessGroupEvent(RTList<Event>::Iterator& itEvent) {
519            dmsg(4,("Voice %x processGroupEvents event type=%d", this, itEvent->Type));
520            if (itEvent->Type == Event::type_control_change ||
521                (Type & Voice::type_controller_triggered) ||
522                itEvent->Param.Note.Key != MIDIKey) {
523                dmsg(4,("Voice %x - kill", this));
524                if (pRegion->off_mode == ::sfz::OFF_NORMAL) {
525                    // turn off the voice by entering release envelope stage
526                    EnterReleaseStage();
527                } else {
528                    // kill the voice fast
529                    pEG1->enterFadeOutStage();
530                }
531            }
532        }
533    
534  }} // namespace LinuxSampler::sfz  }} // namespace LinuxSampler::sfz
Legend:
Removed from v.2045  
changed lines
  Added in v.2175
  ViewVC Help
Powered by ViewVC