/[svn]/linuxsampler/trunk/src/engines/gig/Engine.cpp
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revision 563 by schoenebeck, Sun May 22 20:43:32 2005 UTC revision 659 by schoenebeck, Thu Jun 16 21:35:30 2005 UTC
# Line 119  namespace LinuxSampler { namespace gig { Line 119  namespace LinuxSampler { namespace gig {
119          pMainFilterParameters   = NULL;          pMainFilterParameters   = NULL;
120    
121          ResetInternal();          ResetInternal();
122            ResetScaleTuning();
123      }      }
124    
125      /**      /**
# Line 171  namespace LinuxSampler { namespace gig { Line 172  namespace LinuxSampler { namespace gig {
172      void Engine::Reset() {      void Engine::Reset() {
173          DisableAndLock();          DisableAndLock();
174          ResetInternal();          ResetInternal();
175            ResetScaleTuning();
176          Enable();          Enable();
177      }      }
178    
# Line 184  namespace LinuxSampler { namespace gig { Line 186  namespace LinuxSampler { namespace gig {
186    
187          // reset voice stealing parameters          // reset voice stealing parameters
188          pVoiceStealingQueue->clear();          pVoiceStealingQueue->clear();
189          itLastStolenVoice  = RTList<Voice>::Iterator();          itLastStolenVoice          = RTList<Voice>::Iterator();
190          iuiLastStolenKey   = RTList<uint>::Iterator();          itLastStolenVoiceGlobally  = RTList<Voice>::Iterator();
191          pLastStolenChannel = NULL;          iuiLastStolenKey           = RTList<uint>::Iterator();
192            iuiLastStolenKeyGlobally   = RTList<uint>::Iterator();
193          // reset to normal chromatic scale (means equal temper)          pLastStolenChannel         = NULL;
         memset(&ScaleTuning[0], 0x00, 12);  
194    
195          // reset all voices          // reset all voices
196          for (RTList<Voice>::Iterator iterVoice = pVoicePool->allocAppend(); iterVoice == pVoicePool->last(); iterVoice = pVoicePool->allocAppend()) {          for (RTList<Voice>::Iterator iterVoice = pVoicePool->allocAppend(); iterVoice == pVoicePool->last(); iterVoice = pVoicePool->allocAppend()) {
# Line 205  namespace LinuxSampler { namespace gig { Line 206  namespace LinuxSampler { namespace gig {
206      }      }
207    
208      /**      /**
209         * Reset to normal, chromatic scale (means equal tempered).
210         */
211        void Engine::ResetScaleTuning() {
212            memset(&ScaleTuning[0], 0x00, 12);
213        }
214    
215        /**
216       * Connect this engine instance with the given audio output device.       * Connect this engine instance with the given audio output device.
217       * This method will be called when an Engine instance is created.       * This method will be called when an Engine instance is created.
218       * All of the engine's data structures which are dependant to the used       * All of the engine's data structures which are dependant to the used
# Line 406  namespace LinuxSampler { namespace gig { Line 414  namespace LinuxSampler { namespace gig {
414    
415          // reset voice stealing for the next audio fragment          // reset voice stealing for the next audio fragment
416          pVoiceStealingQueue->clear();          pVoiceStealingQueue->clear();
         itLastStolenVoice  = RTList<Voice>::Iterator();  
         iuiLastStolenKey   = RTList<uint>::Iterator();  
         pLastStolenChannel = NULL;  
417    
418          // just some statistics about this engine instance          // just some statistics about this engine instance
419          ActiveVoiceCount = ActiveVoiceCountTemp;          ActiveVoiceCount = ActiveVoiceCountTemp;
420          if (ActiveVoiceCount > ActiveVoiceCountMax) ActiveVoiceCountMax = ActiveVoiceCount;          if (ActiveVoiceCount > ActiveVoiceCountMax) ActiveVoiceCountMax = ActiveVoiceCount;
421    
422            FrameTime += Samples;
423    
424          return 0;          return 0;
425      }      }
426    
# Line 456  namespace LinuxSampler { namespace gig { Line 463  namespace LinuxSampler { namespace gig {
463                  }                  }
464              }              }
465          }          }
466    
467            // reset voice stealing for the next engine channel (or next audio fragment)
468            itLastStolenVoice         = RTList<Voice>::Iterator();
469            itLastStolenVoiceGlobally = RTList<Voice>::Iterator();
470            iuiLastStolenKey          = RTList<uint>::Iterator();
471            iuiLastStolenKeyGlobally  = RTList<uint>::Iterator();
472            pLastStolenChannel        = NULL;
473      }      }
474    
475      /**      /**
# Line 610  namespace LinuxSampler { namespace gig { Line 624  namespace LinuxSampler { namespace gig {
624          midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[key];          midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[key];
625    
626          pKey->KeyPressed = true; // the MIDI key was now pressed down          pKey->KeyPressed = true; // the MIDI key was now pressed down
627            pKey->Velocity   = itNoteOnEvent->Param.Note.Velocity;
628            pKey->NoteOnTime = FrameTime + itNoteOnEvent->FragmentPos(); // will be used to calculate note length
629    
630          // cancel release process of voices on this key if needed          // cancel release process of voices on this key if needed
631          if (pKey->Active && !pEngineChannel->SustainPedal) {          if (pKey->Active && !pEngineChannel->SustainPedal) {
# Line 670  namespace LinuxSampler { namespace gig { Line 686  namespace LinuxSampler { namespace gig {
686                  ::gig::Region* pRegion = pEngineChannel->pInstrument->GetRegion(itNoteOffEventOnKeyList->Param.Note.Key);                  ::gig::Region* pRegion = pEngineChannel->pInstrument->GetRegion(itNoteOffEventOnKeyList->Param.Note.Key);
687                  if (pRegion) {                  if (pRegion) {
688                      int voicesRequired = pRegion->Layers;                      int voicesRequired = pRegion->Layers;
689    
690                        // MIDI note-on velocity is used instead of note-off velocity
691                        itNoteOffEventOnKeyList->Param.Note.Velocity = pKey->Velocity;
692    
693                      // now launch the required amount of voices                      // now launch the required amount of voices
694                      for (int i = 0; i < voicesRequired; i++)                      for (int i = 0; i < voicesRequired; i++)
695                          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); //FIXME: for the moment we don't perform voice stealing for release triggered samples
# Line 808  namespace LinuxSampler { namespace gig { Line 828  namespace LinuxSampler { namespace gig {
828                  // from the same engine channel                  // from the same engine channel
829                  // (caution: must stay after 'oldestvoiceonkey' algorithm !)                  // (caution: must stay after 'oldestvoiceonkey' algorithm !)
830                  case voice_steal_algo_oldestkey: {                  case voice_steal_algo_oldestkey: {
831                        // if we already stole in this fragment, try to proceed on same key
832                      if (this->itLastStolenVoice) {                      if (this->itLastStolenVoice) {
833                          itSelectedVoice = this->itLastStolenVoice;                          itSelectedVoice = this->itLastStolenVoice;
834                          ++itSelectedVoice;                          do {
835                          if (itSelectedVoice) break; // selection succeeded                              ++itSelectedVoice;
836                          RTList<uint>::Iterator iuiSelectedKey = this->iuiLastStolenKey;                          } while (itSelectedVoice && !itSelectedVoice->hasRendered()); // proceed iterating if voice was created in this fragment cycle
837                          ++iuiSelectedKey;                          // found a "stealable" voice ?
838                          if (iuiSelectedKey) {                          if (itSelectedVoice && itSelectedVoice->hasRendered()) {
839                              this->iuiLastStolenKey = iuiSelectedKey;                              // remember which voice we stole, so we can simply proceed on next voice stealing
840                              midi_key_info_t* pSelectedKey = &pEngineChannel->pMIDIKeyInfo[*iuiSelectedKey];                              this->itLastStolenVoice = itSelectedVoice;
                             itSelectedVoice = pSelectedKey->pActiveVoices->first();  
841                              break; // selection succeeded                              break; // selection succeeded
842                          }                          }
843                      }                      }
844                        // get (next) oldest key
845                        RTList<uint>::Iterator iuiSelectedKey = (this->iuiLastStolenKey) ? ++this->iuiLastStolenKey : pEngineChannel->pActiveKeys->first();
846                        while (iuiSelectedKey) {
847                            midi_key_info_t* pSelectedKey = &pEngineChannel->pMIDIKeyInfo[*iuiSelectedKey];
848                            itSelectedVoice = pSelectedKey->pActiveVoices->first();
849                            // proceed iterating if voice was created in this fragment cycle
850                            while (itSelectedVoice && !itSelectedVoice->hasRendered()) ++itSelectedVoice;
851                            // found a "stealable" voice ?
852                            if (itSelectedVoice && itSelectedVoice->hasRendered()) {
853                                // remember which voice on which key we stole, so we can simply proceed on next voice stealing
854                                this->iuiLastStolenKey  = iuiSelectedKey;
855                                this->itLastStolenVoice = itSelectedVoice;
856                                break; // selection succeeded
857                            }
858                            ++iuiSelectedKey; // get next oldest key
859                        }
860                      break;                      break;
861                  }                  }
862    
# Line 834  namespace LinuxSampler { namespace gig { Line 870  namespace LinuxSampler { namespace gig {
870    
871              // if we couldn't steal a voice from the same engine channel then              // if we couldn't steal a voice from the same engine channel then
872              // steal oldest voice on the oldest key from any other engine channel              // steal oldest voice on the oldest key from any other engine channel
873              if (!itSelectedVoice) {              // (the smaller engine channel number, the higher priority)
874                  EngineChannel* pSelectedChannel = (pLastStolenChannel) ? pLastStolenChannel : pEngineChannel;              if (!itSelectedVoice || !itSelectedVoice->hasRendered()) {
875                  int iChannelIndex = pSelectedChannel->iEngineIndexSelf;                  EngineChannel* pSelectedChannel;
876                    int            iChannelIndex;
877                    // select engine channel
878                    if (pLastStolenChannel) {
879                        pSelectedChannel = pLastStolenChannel;
880                        iChannelIndex    = pSelectedChannel->iEngineIndexSelf;
881                    } else { // pick the engine channel followed by this engine channel
882                        iChannelIndex    = (pEngineChannel->iEngineIndexSelf + 1) % engineChannels.size();
883                        pSelectedChannel = engineChannels[iChannelIndex];
884                    }
885                    // iterate through engine channels
886                  while (true) {                  while (true) {
887                      RTList<uint>::Iterator iuiSelectedKey = pSelectedChannel->pActiveKeys->first();                      // if we already stole in this fragment, try to proceed on same key
888                      if (iuiSelectedKey) {                      if (this->itLastStolenVoiceGlobally) {
889                          midi_key_info_t* pSelectedKey = &pSelectedChannel->pMIDIKeyInfo[*iuiSelectedKey];                          itSelectedVoice = this->itLastStolenVoiceGlobally;
890                          itSelectedVoice    = pSelectedKey->pActiveVoices->first();                          do {
891                          iuiLastStolenKey   = iuiSelectedKey;                              ++itSelectedVoice;
892                          pLastStolenChannel = pSelectedChannel;                          } while (itSelectedVoice && !itSelectedVoice->hasRendered()); // proceed iterating if voice was created in this fragment cycle
893                          break; // selection succeeded                          // break if selection succeeded
894                            if (itSelectedVoice && itSelectedVoice->hasRendered()) {
895                                // remember which voice we stole, so we can simply proceed on next voice stealing
896                                this->itLastStolenVoiceGlobally = itSelectedVoice;
897                                break; // selection succeeded
898                            }
899                      }                      }
900                        // get (next) oldest key
901                        RTList<uint>::Iterator iuiSelectedKey = (this->iuiLastStolenKey) ? ++this->iuiLastStolenKey : pSelectedChannel->pActiveKeys->first();
902                        while (iuiSelectedKey) {
903                            midi_key_info_t* pSelectedKey = &pEngineChannel->pMIDIKeyInfo[*iuiSelectedKey];
904                            itSelectedVoice = pSelectedKey->pActiveVoices->first();
905                            // proceed iterating if voice was created in this fragment cycle
906                            while (itSelectedVoice && !itSelectedVoice->hasRendered()) ++itSelectedVoice;
907                            // found a "stealable" voice ?
908                            if (itSelectedVoice && itSelectedVoice->hasRendered()) {
909                                // remember which voice on which key on which engine channel we stole, so we can simply proceed on next voice stealing
910                                this->iuiLastStolenKeyGlobally  = iuiSelectedKey;
911                                this->itLastStolenVoiceGlobally = itSelectedVoice;
912                                this->pLastStolenChannel        = pSelectedChannel;
913                                break; // selection succeeded
914                            }
915                            ++iuiSelectedKey; // get next key on current engine channel
916                        }
917                        // get next engine channel
918                      iChannelIndex    = (iChannelIndex + 1) % engineChannels.size();                      iChannelIndex    = (iChannelIndex + 1) % engineChannels.size();
919                      pSelectedChannel =  engineChannels[iChannelIndex];                      pSelectedChannel = engineChannels[iChannelIndex];
920                  }                  }
921              }              }
922    
# Line 861  namespace LinuxSampler { namespace gig { Line 930  namespace LinuxSampler { namespace gig {
930              // now kill the selected voice              // now kill the selected voice
931              itSelectedVoice->Kill(itNoteOnEvent);              itSelectedVoice->Kill(itNoteOnEvent);
932    
             // remember which voice we stole, so we can simply proceed for the next voice stealing  
             itLastStolenVoice = itSelectedVoice;  
   
933              --VoiceTheftsLeft;              --VoiceTheftsLeft;
934    
935              return 0; // success              return 0; // success
# Line 1195  namespace LinuxSampler { namespace gig { Line 1261  namespace LinuxSampler { namespace gig {
1261      }      }
1262    
1263      String Engine::Version() {      String Engine::Version() {
1264          String s = "$Revision: 1.38 $";          String s = "$Revision: 1.42 $";
1265          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
1266      }      }
1267    
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