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

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revision 665 by schoenebeck, Sun Jun 19 15:11:20 2005 UTC revision 690 by schoenebeck, Fri Jul 15 16:43:56 2005 UTC
# Line 240  namespace LinuxSampler { namespace gig { Line 240  namespace LinuxSampler { namespace gig {
240    
241          // FIXME: audio drivers with varying fragment sizes might be a problem here          // FIXME: audio drivers with varying fragment sizes might be a problem here
242          MaxFadeOutPos = MaxSamplesPerCycle - int(double(SampleRate) * CONFIG_EG_MIN_RELEASE_TIME) - 1;          MaxFadeOutPos = MaxSamplesPerCycle - int(double(SampleRate) * CONFIG_EG_MIN_RELEASE_TIME) - 1;
243          if (MaxFadeOutPos < 0)          if (MaxFadeOutPos < 0) {
244              throw LinuxSamplerException("CONFIG_EG_MIN_RELEASE_TIME too big for current audio fragment size / sampling rate!");              std::cerr << "gig::Engine: WARNING, CONFIG_EG_MIN_RELEASE_TIME "
245                          << "too big for current audio fragment size & sampling rate! "
246                          << "May lead to click sounds if voice stealing chimes in!\n" << std::flush;
247                // force volume ramp downs at the beginning of each fragment
248                MaxFadeOutPos = 0;
249                // lower minimum release time
250                const float minReleaseTime = (float) MaxSamplesPerCycle / (float) SampleRate;
251                for (RTList<Voice>::Iterator iterVoice = pVoicePool->allocAppend(); iterVoice == pVoicePool->last(); iterVoice = pVoicePool->allocAppend()) {
252                    iterVoice->pEG1->CalculateFadeOutCoeff(minReleaseTime, SampleRate);
253                }
254                pVoicePool->clear();
255            }
256    
257          // (re)create disk thread          // (re)create disk thread
258          if (this->pDiskThread) {          if (this->pDiskThread) {
# Line 519  namespace LinuxSampler { namespace gig { Line 530  namespace LinuxSampler { namespace gig {
530          for (; itVoiceStealEvent != end; ++itVoiceStealEvent) {          for (; itVoiceStealEvent != end; ++itVoiceStealEvent) {
531              EngineChannel* pEngineChannel = (EngineChannel*) itVoiceStealEvent->pEngineChannel;              EngineChannel* pEngineChannel = (EngineChannel*) itVoiceStealEvent->pEngineChannel;
532              Pool<Voice>::Iterator itNewVoice =              Pool<Voice>::Iterator itNewVoice =
533                  LaunchVoice(pEngineChannel, itVoiceStealEvent, itVoiceStealEvent->Param.Note.Layer, itVoiceStealEvent->Param.Note.ReleaseTrigger, false);                  LaunchVoice(pEngineChannel, itVoiceStealEvent, itVoiceStealEvent->Param.Note.Layer, itVoiceStealEvent->Param.Note.ReleaseTrigger, false, false);
534              if (itNewVoice) {              if (itNewVoice) {
535                  itNewVoice->Render(Samples);                  itNewVoice->Render(Samples);
536                  if (itNewVoice->IsActive()) ActiveVoiceCountTemp++; // still active                  if (itNewVoice->IsActive()) ActiveVoiceCountTemp++; // still active
# Line 647  namespace LinuxSampler { namespace gig { Line 658  namespace LinuxSampler { namespace gig {
658                  int voicesRequired = pRegion->Layers;                  int voicesRequired = pRegion->Layers;
659                  // now launch the required amount of voices                  // now launch the required amount of voices
660                  for (int i = 0; i < voicesRequired; i++)                  for (int i = 0; i < voicesRequired; i++)
661                      LaunchVoice(pEngineChannel, itNoteOnEventOnKeyList, i, false, true);                      LaunchVoice(pEngineChannel, itNoteOnEventOnKeyList, i, false, true, true);
662              }              }
663          }          }
664    
# Line 691  namespace LinuxSampler { namespace gig { Line 702  namespace LinuxSampler { namespace gig {
702    
703                      // now launch the required amount of voices                      // now launch the required amount of voices
704                      for (int i = 0; i < voicesRequired; i++)                      for (int i = 0; i < voicesRequired; i++)
705                          LaunchVoice(pEngineChannel, itNoteOffEventOnKeyList, i, true, false); //FIXME: for the moment we don't perform voice stealing for release triggered samples                          LaunchVoice(pEngineChannel, itNoteOffEventOnKeyList, i, true, false, false); //FIXME: for the moment we don't perform voice stealing for release triggered samples
706                  }                  }
707                  pKey->ReleaseTrigger = false;                  pKey->ReleaseTrigger = false;
708              }              }
# Line 728  namespace LinuxSampler { namespace gig { Line 739  namespace LinuxSampler { namespace gig {
739       *  @param VoiceStealing       - if voice stealing should be performed       *  @param VoiceStealing       - if voice stealing should be performed
740       *                               when there is no free voice       *                               when there is no free voice
741       *                               (optional, default = true)       *                               (optional, default = true)
742         *  @param HandleKeyGroupConflicts - if voices should be killed due to a
743         *                                   key group conflict
744       *  @returns pointer to new voice or NULL if there was no free voice or       *  @returns pointer to new voice or NULL if there was no free voice or
745       *           if the voice wasn't triggered (for example when no region is       *           if the voice wasn't triggered (for example when no region is
746       *           defined for the given key).       *           defined for the given key).
747       */       */
748      Pool<Voice>::Iterator Engine::LaunchVoice(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itNoteOnEvent, int iLayer, bool ReleaseTriggerVoice, bool VoiceStealing) {      Pool<Voice>::Iterator Engine::LaunchVoice(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itNoteOnEvent, int iLayer, bool ReleaseTriggerVoice, bool VoiceStealing, bool HandleKeyGroupConflicts) {
749          midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[itNoteOnEvent->Param.Note.Key];          int MIDIKey            = itNoteOnEvent->Param.Note.Key;
750            midi_key_info_t* pKey  = &pEngineChannel->pMIDIKeyInfo[MIDIKey];
751            ::gig::Region* pRegion = pEngineChannel->pInstrument->GetRegion(MIDIKey);
752    
753            // if nothing defined for this key
754            if (!pRegion) return Pool<Voice>::Iterator(); // nothing to do
755    
756            // only mark the first voice of a layered voice (group) to be in a
757            // key group, so the layered voices won't kill each other
758            int iKeyGroup = (iLayer == 0 && !ReleaseTriggerVoice) ? pRegion->KeyGroup : 0;
759    
760            // handle key group (a.k.a. exclusive group) conflicts
761            if (HandleKeyGroupConflicts) {
762                if (iKeyGroup) { // if this voice / key belongs to a key group
763                    uint** ppKeyGroup = &pEngineChannel->ActiveKeyGroups[iKeyGroup];
764                    if (*ppKeyGroup) { // if there's already an active key in that key group
765                        midi_key_info_t* pOtherKey = &pEngineChannel->pMIDIKeyInfo[**ppKeyGroup];
766                        // kill all voices on the (other) key
767                        RTList<Voice>::Iterator itVoiceToBeKilled = pOtherKey->pActiveVoices->first();
768                        RTList<Voice>::Iterator end               = pOtherKey->pActiveVoices->end();
769                        for (; itVoiceToBeKilled != end; ++itVoiceToBeKilled) {
770                            if (itVoiceToBeKilled->Type != Voice::type_release_trigger) {
771                                itVoiceToBeKilled->Kill(itNoteOnEvent);
772                                --VoiceSpawnsLeft; //FIXME: just a hack, we should better check in StealVoice() if the voice was killed due to key conflict
773                            }
774                        }
775                    }
776                }
777            }
778    
779            Voice::type_t VoiceType = Voice::type_normal;
780    
781            // get current dimension values to select the right dimension region
782            //TODO: for stolen voices this dimension region selection block is processed twice, this should be changed
783            //FIXME: controller values for selecting the dimension region here are currently not sample accurate
784            uint DimValues[8] = { 0 };
785            for (int i = pRegion->Dimensions - 1; i >= 0; i--) {
786                switch (pRegion->pDimensionDefinitions[i].dimension) {
787                    case ::gig::dimension_samplechannel:
788                        DimValues[i] = 0; //TODO: we currently ignore this dimension
789                        break;
790                    case ::gig::dimension_layer:
791                        DimValues[i] = iLayer;
792                        break;
793                    case ::gig::dimension_velocity:
794                        DimValues[i] = itNoteOnEvent->Param.Note.Velocity;
795                        break;
796                    case ::gig::dimension_channelaftertouch:
797                        DimValues[i] = 0; //TODO: we currently ignore this dimension
798                        break;
799                    case ::gig::dimension_releasetrigger:
800                        VoiceType = (ReleaseTriggerVoice) ? Voice::type_release_trigger : (!iLayer) ? Voice::type_release_trigger_required : Voice::type_normal;
801                        DimValues[i] = (uint) ReleaseTriggerVoice;
802                        break;
803                    case ::gig::dimension_keyboard:
804                        DimValues[i] = (uint) pEngineChannel->CurrentKeyDimension;
805                        break;
806                    case ::gig::dimension_roundrobin:
807                        DimValues[i] = (uint) pEngineChannel->pMIDIKeyInfo[MIDIKey].RoundRobinIndex; // incremented for each note on
808                        break;
809                    case ::gig::dimension_random:
810                        RandomSeed   = RandomSeed * 1103515245 + 12345; // classic pseudo random number generator
811                        DimValues[i] = (uint) RandomSeed >> (32 - pRegion->pDimensionDefinitions[i].bits); // highest bits are most random
812                        break;
813                    case ::gig::dimension_modwheel:
814                        DimValues[i] = pEngineChannel->ControllerTable[1];
815                        break;
816                    case ::gig::dimension_breath:
817                        DimValues[i] = pEngineChannel->ControllerTable[2];
818                        break;
819                    case ::gig::dimension_foot:
820                        DimValues[i] = pEngineChannel->ControllerTable[4];
821                        break;
822                    case ::gig::dimension_portamentotime:
823                        DimValues[i] = pEngineChannel->ControllerTable[5];
824                        break;
825                    case ::gig::dimension_effect1:
826                        DimValues[i] = pEngineChannel->ControllerTable[12];
827                        break;
828                    case ::gig::dimension_effect2:
829                        DimValues[i] = pEngineChannel->ControllerTable[13];
830                        break;
831                    case ::gig::dimension_genpurpose1:
832                        DimValues[i] = pEngineChannel->ControllerTable[16];
833                        break;
834                    case ::gig::dimension_genpurpose2:
835                        DimValues[i] = pEngineChannel->ControllerTable[17];
836                        break;
837                    case ::gig::dimension_genpurpose3:
838                        DimValues[i] = pEngineChannel->ControllerTable[18];
839                        break;
840                    case ::gig::dimension_genpurpose4:
841                        DimValues[i] = pEngineChannel->ControllerTable[19];
842                        break;
843                    case ::gig::dimension_sustainpedal:
844                        DimValues[i] = pEngineChannel->ControllerTable[64];
845                        break;
846                    case ::gig::dimension_portamento:
847                        DimValues[i] = pEngineChannel->ControllerTable[65];
848                        break;
849                    case ::gig::dimension_sostenutopedal:
850                        DimValues[i] = pEngineChannel->ControllerTable[66];
851                        break;
852                    case ::gig::dimension_softpedal:
853                        DimValues[i] = pEngineChannel->ControllerTable[67];
854                        break;
855                    case ::gig::dimension_genpurpose5:
856                        DimValues[i] = pEngineChannel->ControllerTable[80];
857                        break;
858                    case ::gig::dimension_genpurpose6:
859                        DimValues[i] = pEngineChannel->ControllerTable[81];
860                        break;
861                    case ::gig::dimension_genpurpose7:
862                        DimValues[i] = pEngineChannel->ControllerTable[82];
863                        break;
864                    case ::gig::dimension_genpurpose8:
865                        DimValues[i] = pEngineChannel->ControllerTable[83];
866                        break;
867                    case ::gig::dimension_effect1depth:
868                        DimValues[i] = pEngineChannel->ControllerTable[91];
869                        break;
870                    case ::gig::dimension_effect2depth:
871                        DimValues[i] = pEngineChannel->ControllerTable[92];
872                        break;
873                    case ::gig::dimension_effect3depth:
874                        DimValues[i] = pEngineChannel->ControllerTable[93];
875                        break;
876                    case ::gig::dimension_effect4depth:
877                        DimValues[i] = pEngineChannel->ControllerTable[94];
878                        break;
879                    case ::gig::dimension_effect5depth:
880                        DimValues[i] = pEngineChannel->ControllerTable[95];
881                        break;
882                    case ::gig::dimension_none:
883                        std::cerr << "gig::Engine::LaunchVoice() Error: dimension=none\n" << std::flush;
884                        break;
885                    default:
886                        std::cerr << "gig::Engine::LaunchVoice() Error: Unknown dimension\n" << std::flush;
887                }
888            }
889            ::gig::DimensionRegion* pDimRgn = pRegion->GetDimensionRegionByValue(DimValues);
890    
891            // no need to continue if sample is silent
892            if (!pDimRgn->pSample || !pDimRgn->pSample->SamplesTotal) return Pool<Voice>::Iterator();
893    
894          // allocate a new voice for the key          // allocate a new voice for the key
895          Pool<Voice>::Iterator itNewVoice = pKey->pActiveVoices->allocAppend();          Pool<Voice>::Iterator itNewVoice = pKey->pActiveVoices->allocAppend();
896          if (itNewVoice) {          if (itNewVoice) {
897              // launch the new voice              // launch the new voice
898              if (itNewVoice->Trigger(pEngineChannel, itNoteOnEvent, pEngineChannel->Pitch, pEngineChannel->pInstrument, iLayer, ReleaseTriggerVoice, VoiceStealing) < 0) {              if (itNewVoice->Trigger(pEngineChannel, itNoteOnEvent, pEngineChannel->Pitch, pDimRgn, VoiceType, iKeyGroup) < 0) {
899                  dmsg(4,("Voice not triggered\n"));                  dmsg(4,("Voice not triggered\n"));
900                  pKey->pActiveVoices->free(itNewVoice);                  pKey->pActiveVoices->free(itNewVoice);
901              }              }
902              else { // on success              else { // on success
903                  --VoiceSpawnsLeft;                  --VoiceSpawnsLeft;
                 uint** ppKeyGroup = NULL;  
                 if (itNewVoice->KeyGroup) { // if this voice / key belongs to a key group  
                     ppKeyGroup = &pEngineChannel->ActiveKeyGroups[itNewVoice->KeyGroup];  
                     if (*ppKeyGroup) { // if there's already an active key in that key group  
                         midi_key_info_t* pOtherKey = &pEngineChannel->pMIDIKeyInfo[**ppKeyGroup];  
                         // kill all voices on the (other) key  
                         RTList<Voice>::Iterator itVoiceToBeKilled = pOtherKey->pActiveVoices->first();  
                         RTList<Voice>::Iterator end               = pOtherKey->pActiveVoices->end();  
                         for (; itVoiceToBeKilled != end; ++itVoiceToBeKilled) {  
                             if (itVoiceToBeKilled->Type != Voice::type_release_trigger) {  
                                 itVoiceToBeKilled->Kill(itNoteOnEvent);  
                                 --VoiceSpawnsLeft; //FIXME: just a hack, we should better check in StealVoice() if the voice was killed due to key conflict  
                             }  
                         }  
                     }  
                 }  
904                  if (!pKey->Active) { // mark as active key                  if (!pKey->Active) { // mark as active key
905                      pKey->Active = true;                      pKey->Active = true;
906                      pKey->itSelf = pEngineChannel->pActiveKeys->allocAppend();                      pKey->itSelf = pEngineChannel->pActiveKeys->allocAppend();
907                      *pKey->itSelf = itNoteOnEvent->Param.Note.Key;                      *pKey->itSelf = itNoteOnEvent->Param.Note.Key;
908                  }                  }
909                  if (itNewVoice->KeyGroup) {                  if (itNewVoice->KeyGroup) {
910                        uint** ppKeyGroup = &pEngineChannel->ActiveKeyGroups[itNewVoice->KeyGroup];
911                      *ppKeyGroup = &*pKey->itSelf; // put key as the (new) active key to its key group                      *ppKeyGroup = &*pKey->itSelf; // put key as the (new) active key to its key group
912                  }                  }
913                  if (itNewVoice->Type == Voice::type_release_trigger_required) pKey->ReleaseTrigger = true; // mark key for the need of release triggered voice(s)                  if (itNewVoice->Type == Voice::type_release_trigger_required) pKey->ReleaseTrigger = true; // mark key for the need of release triggered voice(s)
# Line 1282  namespace LinuxSampler { namespace gig { Line 1423  namespace LinuxSampler { namespace gig {
1423      }      }
1424    
1425      String Engine::Version() {      String Engine::Version() {
1426          String s = "$Revision: 1.45 $";          String s = "$Revision: 1.49 $";
1427          return s.substr(11, s.size() - 13); // cut dollar signs, spaces and CVS macro keyword          return s.substr(11, s.size() - 13); // cut dollar signs, spaces and CVS macro keyword
1428      }      }
1429    
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