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

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revision 2251 by iliev, Fri Aug 12 13:07:05 2011 UTC revision 2252 by iliev, Sat Aug 20 14:01:36 2011 UTC
# Line 153  namespace LinuxSampler { namespace sfz { Line 153  namespace LinuxSampler { namespace sfz {
153          }*/ // TODO: ^^^          }*/ // TODO: ^^^
154      }      }
155    
     void Voice::ProcessCutoffEvent(RTList<Event>::Iterator& itEvent) {  
         int ccvalue = itEvent->Param.CC.Value;  
         if (VCFCutoffCtrl.value == ccvalue) return;  
         VCFCutoffCtrl.value = ccvalue;  
   
         float cutoff = CutoffBase * RTMath::CentsToFreqRatioUnlimited(  
             ccvalue / 127.0f * pRegion->cutoff_oncc[VCFCutoffCtrl.controller]);  
         if (cutoff > 0.49 * pEngine->SampleRate) cutoff = 0.49 * pEngine->SampleRate;  
   
         VCFCutoffCtrl.fvalue = cutoff; // needed for initialization of fFinalCutoff next time  
         fFinalCutoff = cutoff;  
     }  
   
156      double Voice::CalculateCrossfadeVolume(uint8_t MIDIKeyVelocity) {      double Voice::CalculateCrossfadeVolume(uint8_t MIDIKeyVelocity) {
157          /*float crossfadeVolume;          /*float crossfadeVolume;
158          switch (pRegion->AttenuationController.type) {          switch (pRegion->AttenuationController.type) {
# Line 271  namespace LinuxSampler { namespace sfz { Line 258  namespace LinuxSampler { namespace sfz {
258      }      }
259    
260      float Voice::CalculateFinalCutoff(float cutoffBase) {      float Voice::CalculateFinalCutoff(float cutoffBase) {
261          float cutoff;          float cutoff = cutoffBase;
         if (VCFCutoffCtrl.controller) {  
             int ccvalue = GetSfzEngineChannel()->ControllerTable[VCFCutoffCtrl.controller];  
             cutoff = CutoffBase * RTMath::CentsToFreqRatioUnlimited(  
                 ccvalue / 127.0f * pRegion->cutoff_oncc[VCFCutoffCtrl.controller]);  
         } else {  
             cutoff = cutoffBase;  
         }  
262          if (cutoff > 0.49 * pEngine->SampleRate) cutoff = 0.49 * pEngine->SampleRate;          if (cutoff > 0.49 * pEngine->SampleRate) cutoff = 0.49 * pEngine->SampleRate;
263          return cutoff;          return cutoff;
264      }      }
265    
     uint8_t Voice::GetVCFCutoffCtrl() {  
         // TODO: the sfz format allows several CC for the same  
         // modulation destination. The Voice interface needs to be  
         // changed to support that.  
         if (pRegion->cutoff_cc) return pRegion->cutoff_cc;  
         else if (pRegion->cutoff_chanaft) return 128;  
         return 0;  
     }  
   
     uint8_t Voice::GetVCFResonanceCtrl() {  
         /*uint8_t ctrl;  
         switch (pRegion->VCFResonanceController) {  
             case ::gig::vcf_res_ctrl_genpurpose3:  
                 ctrl = 18;  
                 break;  
             case ::gig::vcf_res_ctrl_genpurpose4:  
                 ctrl = 19;  
                 break;  
             case ::gig::vcf_res_ctrl_genpurpose5:  
                 ctrl = 80;  
                 break;  
             case ::gig::vcf_res_ctrl_genpurpose6:  
                 ctrl = 81;  
                 break;  
             case ::gig::vcf_res_ctrl_none:  
             default:  
                 ctrl = 0;  
         }  
   
         return ctrl;*/ // TODO: ^^^  
         return 0;  
     }  
   
266      float Voice::GetReleaseTriggerAttenuation(float noteLength) {      float Voice::GetReleaseTriggerAttenuation(float noteLength) {
267          // pow(10, -rt_decay * noteLength / 20):          // pow(10, -rt_decay * noteLength / 20):
268          return expf(RgnInfo.ReleaseTriggerDecay * noteLength);          return expf(RgnInfo.ReleaseTriggerDecay * noteLength);
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