/[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 668 by schoenebeck, Mon Jun 20 15:30:47 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 735  namespace LinuxSampler { namespace gig { Line 746  namespace LinuxSampler { namespace gig {
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, bool HandleKeyGroupConflicts) {      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          ::gig::Region* pRegion = pEngineChannel->pInstrument->GetRegion(itNoteOnEvent->Param.Note.Key);          midi_key_info_t* pKey  = &pEngineChannel->pMIDIKeyInfo[MIDIKey];
751            ::gig::Region* pRegion = pEngineChannel->pInstrument->GetRegion(MIDIKey);
752    
753          // if nothing defined for this key          // if nothing defined for this key
754          if (!pRegion) return Pool<Voice>::Iterator(); // nothing to do          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          // handle key group (a.k.a. exclusive group) conflicts
761          if (HandleKeyGroupConflicts) {          if (HandleKeyGroupConflicts) {
             // only mark the first voice of a layered voice (group) to be in a  
             // key group, so the layered voices won't kill each other  
             int iKeyGroup = (iLayer == 0 && !ReleaseTriggerVoice) ? pRegion->KeyGroup : 0;  
762              if (iKeyGroup) { // if this voice / key belongs to a key group              if (iKeyGroup) { // if this voice / key belongs to a key group
763                  uint** ppKeyGroup = &pEngineChannel->ActiveKeyGroups[iKeyGroup];                  uint** ppKeyGroup = &pEngineChannel->ActiveKeyGroups[iKeyGroup];
764                  if (*ppKeyGroup) { // if there's already an active key in that key group                  if (*ppKeyGroup) { // if there's already an active key in that key group
# Line 763  namespace LinuxSampler { namespace gig { Line 776  namespace LinuxSampler { namespace gig {
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              }              }
# Line 1295  namespace LinuxSampler { namespace gig { Line 1423  namespace LinuxSampler { namespace gig {
1423      }      }
1424    
1425      String Engine::Version() {      String Engine::Version() {
1426          String s = "$Revision: 1.46 $";          String s = "$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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