/[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 473 by schoenebeck, Thu Mar 17 20:13:08 2005 UTC revision 665 by schoenebeck, Sun Jun 19 15:11:20 2005 UTC
# Line 103  namespace LinuxSampler { namespace gig { Line 103  namespace LinuxSampler { namespace gig {
103          pAudioOutputDevice = NULL;          pAudioOutputDevice = NULL;
104          pDiskThread        = NULL;          pDiskThread        = NULL;
105          pEventGenerator    = NULL;          pEventGenerator    = NULL;
106          pSysexBuffer       = new RingBuffer<uint8_t>(SYSEX_BUFFER_SIZE, 0);          pSysexBuffer       = new RingBuffer<uint8_t>(CONFIG_SYSEX_BUFFER_SIZE, 0);
107          pEventQueue        = new RingBuffer<Event>(MAX_EVENTS_PER_FRAGMENT, 0);          pEventQueue        = new RingBuffer<Event>(CONFIG_MAX_EVENTS_PER_FRAGMENT, 0);
108          pEventPool         = new Pool<Event>(MAX_EVENTS_PER_FRAGMENT);          pEventPool         = new Pool<Event>(CONFIG_MAX_EVENTS_PER_FRAGMENT);
109          pVoicePool         = new Pool<Voice>(MAX_AUDIO_VOICES);          pVoicePool         = new Pool<Voice>(CONFIG_MAX_VOICES);
110          pVoiceStealingQueue = new RTList<Event>(pEventPool);          pVoiceStealingQueue = new RTList<Event>(pEventPool);
111          pGlobalEvents      = new RTList<Event>(pEventPool);          pGlobalEvents      = new RTList<Event>(pEventPool);
112          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 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 231  namespace LinuxSampler { namespace gig { Line 239  namespace LinuxSampler { namespace gig {
239          this->SampleRate         = pAudioOutputDevice->SampleRate();          this->SampleRate         = pAudioOutputDevice->SampleRate();
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) * 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("EG_MIN_RELEASE_TIME in EGADSR.h too big for current audio fragment size / sampling rate!");              throw LinuxSamplerException("CONFIG_EG_MIN_RELEASE_TIME too big for current audio fragment size / sampling rate!");
245    
246          // (re)create disk thread          // (re)create disk thread
247          if (this->pDiskThread) {          if (this->pDiskThread) {
# Line 242  namespace LinuxSampler { namespace gig { Line 250  namespace LinuxSampler { namespace gig {
250              delete this->pDiskThread;              delete this->pDiskThread;
251              dmsg(1,("OK\n"));              dmsg(1,("OK\n"));
252          }          }
253          this->pDiskThread = new DiskThread(((pAudioOut->MaxSamplesPerCycle() << MAX_PITCH) << 1) + 6); //FIXME: assuming stereo          this->pDiskThread = new DiskThread(((pAudioOut->MaxSamplesPerCycle() << CONFIG_MAX_PITCH) << 1) + 6); //FIXME: assuming stereo
254          if (!pDiskThread) {          if (!pDiskThread) {
255              dmsg(0,("gig::Engine  new diskthread = NULL\n"));              dmsg(0,("gig::Engine  new diskthread = NULL\n"));
256              exit(EXIT_FAILURE);              exit(EXIT_FAILURE);
# Line 352  namespace LinuxSampler { namespace gig { Line 360  namespace LinuxSampler { namespace gig {
360          // update time of start and end of this audio fragment (as events' time stamps relate to this)          // update time of start and end of this audio fragment (as events' time stamps relate to this)
361          pEventGenerator->UpdateFragmentTime(Samples);          pEventGenerator->UpdateFragmentTime(Samples);
362    
363            // We only allow a maximum of CONFIG_MAX_VOICES voices to be spawned
364            // in each audio fragment. All subsequent request for spawning new
365            // voices in the same audio fragment will be ignored.
366            VoiceSpawnsLeft = CONFIG_MAX_VOICES;
367    
368          // get all events from the engine's global input event queue which belong to the current fragment          // get all events from the engine's global input event queue which belong to the current fragment
369          // (these are usually just SysEx messages)          // (these are usually just SysEx messages)
370          ImportEvents(Samples);          ImportEvents(Samples);
# Line 370  namespace LinuxSampler { namespace gig { Line 383  namespace LinuxSampler { namespace gig {
383              }              }
384          }          }
385    
         // We only allow a maximum of MAX_AUDIO_VOICES voices to be stolen  
         // in each audio fragment. All subsequent request for spawning new  
         // voices in the same audio fragment will be ignored.  
         VoiceTheftsLeft = MAX_AUDIO_VOICES;  
   
386          // reset internal voice counter (just for statistic of active voices)          // reset internal voice counter (just for statistic of active voices)
387          ActiveVoiceCountTemp = 0;          ActiveVoiceCountTemp = 0;
388    
   
389          // handle events on all engine channels          // handle events on all engine channels
390          for (int i = 0; i < engineChannels.size(); i++) {          for (int i = 0; i < engineChannels.size(); i++) {
391              if (!engineChannels[i]->pInstrument) continue; // ignore if no instrument loaded              if (!engineChannels[i]->pInstrument) continue; // ignore if no instrument loaded
# Line 406  namespace LinuxSampler { namespace gig { Line 413  namespace LinuxSampler { namespace gig {
413    
414          // reset voice stealing for the next audio fragment          // reset voice stealing for the next audio fragment
415          pVoiceStealingQueue->clear();          pVoiceStealingQueue->clear();
         itLastStolenVoice  = RTList<Voice>::Iterator();  
         iuiLastStolenKey   = RTList<uint>::Iterator();  
         pLastStolenChannel = NULL;  
416    
417          // just some statistics about this engine instance          // just some statistics about this engine instance
418          ActiveVoiceCount = ActiveVoiceCountTemp;          ActiveVoiceCount = ActiveVoiceCountTemp;
419          if (ActiveVoiceCount > ActiveVoiceCountMax) ActiveVoiceCountMax = ActiveVoiceCount;          if (ActiveVoiceCount > ActiveVoiceCountMax) ActiveVoiceCountMax = ActiveVoiceCount;
420    
421            FrameTime += Samples;
422    
423          return 0;          return 0;
424      }      }
425    
# Line 456  namespace LinuxSampler { namespace gig { Line 462  namespace LinuxSampler { namespace gig {
462                  }                  }
463              }              }
464          }          }
465    
466            // reset voice stealing for the next engine channel (or next audio fragment)
467            itLastStolenVoice         = RTList<Voice>::Iterator();
468            itLastStolenVoiceGlobally = RTList<Voice>::Iterator();
469            iuiLastStolenKey          = RTList<uint>::Iterator();
470            iuiLastStolenKeyGlobally  = RTList<uint>::Iterator();
471            pLastStolenChannel        = NULL;
472      }      }
473    
474      /**      /**
# Line 539  namespace LinuxSampler { namespace gig { Line 552  namespace LinuxSampler { namespace gig {
552                  midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[*iuiKey];                  midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[*iuiKey];
553                  ++iuiKey;                  ++iuiKey;
554                  if (pKey->pActiveVoices->isEmpty()) FreeKey(pEngineChannel, pKey);                  if (pKey->pActiveVoices->isEmpty()) FreeKey(pEngineChannel, pKey);
555                  #if DEVMODE                  #if CONFIG_DEVMODE
556                  else { // FIXME: should be removed before the final release (purpose: just a sanity check for debugging)                  else { // just a sanity check for debugging
557                      RTList<Voice>::Iterator itVoice     = pKey->pActiveVoices->first();                      RTList<Voice>::Iterator itVoice     = pKey->pActiveVoices->first();
558                      RTList<Voice>::Iterator itVoicesEnd = pKey->pActiveVoices->end();                      RTList<Voice>::Iterator itVoicesEnd = pKey->pActiveVoices->end();
559                      for (; itVoice != itVoicesEnd; ++itVoice) { // iterate through all voices on this key                      for (; itVoice != itVoicesEnd; ++itVoice) { // iterate through all voices on this key
# Line 549  namespace LinuxSampler { namespace gig { Line 562  namespace LinuxSampler { namespace gig {
562                          }                          }
563                      }                      }
564                  }                  }
565                  #endif // DEVMODE                  #endif // CONFIG_DEVMODE
566              }              }
567          }          }
568    
# Line 584  namespace LinuxSampler { namespace gig { Line 597  namespace LinuxSampler { namespace gig {
597                  // finally place sysex event into input event queue                  // finally place sysex event into input event queue
598                  pEventQueue->push(&event);                  pEventQueue->push(&event);
599              }              }
600              else dmsg(1,("Engine: Sysex message too large (%d byte) for input buffer (%d byte)!",Size,SYSEX_BUFFER_SIZE));              else dmsg(1,("Engine: Sysex message too large (%d byte) for input buffer (%d byte)!",Size,CONFIG_SYSEX_BUFFER_SIZE));
601          }          }
602          else dmsg(1,("Engine: Input event queue full!"));          else dmsg(1,("Engine: Input event queue full!"));
603      }      }
# Line 610  namespace LinuxSampler { namespace gig { Line 623  namespace LinuxSampler { namespace gig {
623          midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[key];          midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[key];
624    
625          pKey->KeyPressed = true; // the MIDI key was now pressed down          pKey->KeyPressed = true; // the MIDI key was now pressed down
626            pKey->Velocity   = itNoteOnEvent->Param.Note.Velocity;
627            pKey->NoteOnTime = FrameTime + itNoteOnEvent->FragmentPos(); // will be used to calculate note length
628    
629          // cancel release process of voices on this key if needed          // cancel release process of voices on this key if needed
630          if (pKey->Active && !pEngineChannel->SustainPedal) {          if (pKey->Active && !pEngineChannel->SustainPedal) {
# Line 660  namespace LinuxSampler { namespace gig { Line 675  namespace LinuxSampler { namespace gig {
675          // release voices on this key if needed          // release voices on this key if needed
676          if (pKey->Active && !pEngineChannel->SustainPedal) {          if (pKey->Active && !pEngineChannel->SustainPedal) {
677              itNoteOffEvent->Type = Event::type_release; // transform event type              itNoteOffEvent->Type = Event::type_release; // transform event type
         }  
678    
679          // move event to the key's own event list              // move event to the key's own event list
680          RTList<Event>::Iterator itNoteOffEventOnKeyList = itNoteOffEvent.moveToEndOf(pKey->pEvents);              RTList<Event>::Iterator itNoteOffEventOnKeyList = itNoteOffEvent.moveToEndOf(pKey->pEvents);
681    
682          // spawn release triggered voice(s) if needed              // spawn release triggered voice(s) if needed
683          if (pKey->ReleaseTrigger) {              if (pKey->ReleaseTrigger) {
684              // first, get total amount of required voices (dependant on amount of layers)                  // first, get total amount of required voices (dependant on amount of layers)
685              ::gig::Region* pRegion = pEngineChannel->pInstrument->GetRegion(itNoteOffEventOnKeyList->Param.Note.Key);                  ::gig::Region* pRegion = pEngineChannel->pInstrument->GetRegion(itNoteOffEventOnKeyList->Param.Note.Key);
686              if (pRegion) {                  if (pRegion) {
687                  int voicesRequired = pRegion->Layers;                      int voicesRequired = pRegion->Layers;
688                  // now launch the required amount of voices  
689                  for (int i = 0; i < voicesRequired; i++)                      // MIDI note-on velocity is used instead of note-off velocity
690                      LaunchVoice(pEngineChannel, itNoteOffEventOnKeyList, i, true, false); //FIXME: for the moment we don't perform voice stealing for release triggered samples                      itNoteOffEventOnKeyList->Param.Note.Velocity = pKey->Velocity;
691    
692                        // now launch the required amount of voices
693                        for (int i = 0; i < voicesRequired; i++)
694                            LaunchVoice(pEngineChannel, itNoteOffEventOnKeyList, i, true, false); //FIXME: for the moment we don't perform voice stealing for release triggered samples
695                    }
696                    pKey->ReleaseTrigger = false;
697              }              }
             pKey->ReleaseTrigger = false;  
         }  
698    
699          // if neither a voice was spawned or postponed then remove note off event from key again              // if neither a voice was spawned or postponed then remove note off event from key again
700          if (!pKey->Active && !pKey->VoiceTheftsQueued)              if (!pKey->Active && !pKey->VoiceTheftsQueued)
701              pKey->pEvents->free(itNoteOffEventOnKeyList);                  pKey->pEvents->free(itNoteOffEventOnKeyList);
702            }
703      }      }
704    
705      /**      /**
# Line 725  namespace LinuxSampler { namespace gig { Line 744  namespace LinuxSampler { namespace gig {
744                  pKey->pActiveVoices->free(itNewVoice);                  pKey->pActiveVoices->free(itNewVoice);
745              }              }
746              else { // on success              else { // on success
747                    --VoiceSpawnsLeft;
748                  uint** ppKeyGroup = NULL;                  uint** ppKeyGroup = NULL;
749                  if (itNewVoice->KeyGroup) { // if this voice / key belongs to a key group                  if (itNewVoice->KeyGroup) { // if this voice / key belongs to a key group
750                      ppKeyGroup = &pEngineChannel->ActiveKeyGroups[itNewVoice->KeyGroup];                      ppKeyGroup = &pEngineChannel->ActiveKeyGroups[itNewVoice->KeyGroup];
# Line 734  namespace LinuxSampler { namespace gig { Line 754  namespace LinuxSampler { namespace gig {
754                          RTList<Voice>::Iterator itVoiceToBeKilled = pOtherKey->pActiveVoices->first();                          RTList<Voice>::Iterator itVoiceToBeKilled = pOtherKey->pActiveVoices->first();
755                          RTList<Voice>::Iterator end               = pOtherKey->pActiveVoices->end();                          RTList<Voice>::Iterator end               = pOtherKey->pActiveVoices->end();
756                          for (; itVoiceToBeKilled != end; ++itVoiceToBeKilled) {                          for (; itVoiceToBeKilled != end; ++itVoiceToBeKilled) {
757                              if (itVoiceToBeKilled->Type != Voice::type_release_trigger) itVoiceToBeKilled->Kill(itNoteOnEvent);                              if (itVoiceToBeKilled->Type != Voice::type_release_trigger) {
758                                    itVoiceToBeKilled->Kill(itNoteOnEvent);
759                                    --VoiceSpawnsLeft; //FIXME: just a hack, we should better check in StealVoice() if the voice was killed due to key conflict
760                                }
761                          }                          }
762                      }                      }
763                  }                  }
# Line 780  namespace LinuxSampler { namespace gig { Line 803  namespace LinuxSampler { namespace gig {
803       *  @returns 0 on success, a value < 0 if no active voice could be picked for voice stealing       *  @returns 0 on success, a value < 0 if no active voice could be picked for voice stealing
804       */       */
805      int Engine::StealVoice(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itNoteOnEvent) {      int Engine::StealVoice(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itNoteOnEvent) {
806          if (!VoiceTheftsLeft) {          if (VoiceSpawnsLeft <= 0) {
807              dmsg(1,("Max. voice thefts per audio fragment reached (you may raise MAX_AUDIO_VOICES).\n"));              dmsg(1,("Max. voice thefts per audio fragment reached (you may raise CONFIG_MAX_VOICES).\n"));
808              return -1;              return -1;
809          }          }
810          if (!pEventPool->poolIsEmpty()) {          if (!pEventPool->poolIsEmpty()) {
# Line 789  namespace LinuxSampler { namespace gig { Line 812  namespace LinuxSampler { namespace gig {
812              RTList<Voice>::Iterator itSelectedVoice;              RTList<Voice>::Iterator itSelectedVoice;
813    
814              // Select one voice for voice stealing              // Select one voice for voice stealing
815              switch (VOICE_STEAL_ALGORITHM) {              switch (CONFIG_VOICE_STEAL_ALGO) {
816    
817                  // try to pick the oldest voice on the key where the new                  // try to pick the oldest voice on the key where the new
818                  // voice should be spawned, if there is no voice on that                  // voice should be spawned, if there is no voice on that
819                  // key, or no voice left to kill there, then procceed with                  // key, or no voice left to kill, then procceed with
820                  // 'oldestkey' algorithm                  // 'oldestkey' algorithm
821                  case voice_steal_algo_oldestvoiceonkey: {                  case voice_steal_algo_oldestvoiceonkey: {
                 #if 0 // FIXME: broken  
822                      midi_key_info_t* pSelectedKey = &pEngineChannel->pMIDIKeyInfo[itNoteOnEvent->Param.Note.Key];                      midi_key_info_t* pSelectedKey = &pEngineChannel->pMIDIKeyInfo[itNoteOnEvent->Param.Note.Key];
823                      if (this->itLastStolenVoice) {                      itSelectedVoice = pSelectedKey->pActiveVoices->first();
824                          itSelectedVoice = this->itLastStolenVoice;                      // proceed iterating if voice was created in this fragment cycle
825                          ++itSelectedVoice;                      while (itSelectedVoice && !itSelectedVoice->IsStealable()) ++itSelectedVoice;
826                      }                      // if we haven't found a voice then proceed with algorithm 'oldestkey'
827                      else { // no voice stolen in this audio fragment cycle yet                      if (itSelectedVoice && itSelectedVoice->IsStealable()) break;
                         itSelectedVoice = pSelectedKey->pActiveVoices->first();  
                     }  
                     if (itSelectedVoice) {  
                         iuiSelectedKey = pSelectedKey->itSelf;  
                         break; // selection succeeded  
                     }  
                 #endif  
828                  } // no break - intentional !                  } // no break - intentional !
829    
830                  // try to pick the oldest voice on the oldest active key                  // try to pick the oldest voice on the oldest active key
831                    // from the same engine channel
832                  // (caution: must stay after 'oldestvoiceonkey' algorithm !)                  // (caution: must stay after 'oldestvoiceonkey' algorithm !)
833                  case voice_steal_algo_oldestkey: {                  case voice_steal_algo_oldestkey: {
834                        // if we already stole in this fragment, try to proceed on same key
835                      if (this->itLastStolenVoice) {                      if (this->itLastStolenVoice) {
836                          itSelectedVoice = this->itLastStolenVoice;                          itSelectedVoice = this->itLastStolenVoice;
837                          ++itSelectedVoice;                          do {
838                          if (itSelectedVoice) break; // selection succeeded                              ++itSelectedVoice;
839                          RTList<uint>::Iterator iuiSelectedKey = this->iuiLastStolenKey;                          } while (itSelectedVoice && !itSelectedVoice->IsStealable()); // proceed iterating if voice was created in this fragment cycle
840                          ++iuiSelectedKey;                          // found a "stealable" voice ?
841                          if (iuiSelectedKey) {                          if (itSelectedVoice && itSelectedVoice->IsStealable()) {
842                              this->iuiLastStolenKey = iuiSelectedKey;                              // remember which voice we stole, so we can simply proceed on next voice stealing
843                              midi_key_info_t* pSelectedKey = &pEngineChannel->pMIDIKeyInfo[*iuiSelectedKey];                              this->itLastStolenVoice = itSelectedVoice;
                             itSelectedVoice = pSelectedKey->pActiveVoices->first();  
844                              break; // selection succeeded                              break; // selection succeeded
845                          }                          }
846                      }                      }
847                        // get (next) oldest key
848                        RTList<uint>::Iterator iuiSelectedKey = (this->iuiLastStolenKey) ? ++this->iuiLastStolenKey : pEngineChannel->pActiveKeys->first();
849                        while (iuiSelectedKey) {
850                            midi_key_info_t* pSelectedKey = &pEngineChannel->pMIDIKeyInfo[*iuiSelectedKey];
851                            itSelectedVoice = pSelectedKey->pActiveVoices->first();
852                            // proceed iterating if voice was created in this fragment cycle
853                            while (itSelectedVoice && !itSelectedVoice->IsStealable()) ++itSelectedVoice;
854                            // found a "stealable" voice ?
855                            if (itSelectedVoice && itSelectedVoice->IsStealable()) {
856                                // remember which voice on which key we stole, so we can simply proceed on next voice stealing
857                                this->iuiLastStolenKey  = iuiSelectedKey;
858                                this->itLastStolenVoice = itSelectedVoice;
859                                break; // selection succeeded
860                            }
861                            ++iuiSelectedKey; // get next oldest key
862                        }
863                      break;                      break;
864                  }                  }
865    
# Line 839  namespace LinuxSampler { namespace gig { Line 871  namespace LinuxSampler { namespace gig {
871                  }                  }
872              }              }
873    
874              // steal oldest voice on the oldest key from this or any other engine channel              // if we couldn't steal a voice from the same engine channel then
875              if (!itSelectedVoice) {              // steal oldest voice on the oldest key from any other engine channel
876                  EngineChannel* pSelectedChannel = (pLastStolenChannel) ? pLastStolenChannel : pEngineChannel;              // (the smaller engine channel number, the higher priority)
877                  int iChannelIndex = pSelectedChannel->iEngineIndexSelf;              if (!itSelectedVoice || !itSelectedVoice->IsStealable()) {
878                  while (true) {                  EngineChannel* pSelectedChannel;
879                      RTList<uint>::Iterator iuiSelectedKey = pSelectedChannel->pActiveKeys->first();                  int            iChannelIndex;
880                      if (iuiSelectedKey) {                  // select engine channel
881                    if (pLastStolenChannel) {
882                        pSelectedChannel = pLastStolenChannel;
883                        iChannelIndex    = pSelectedChannel->iEngineIndexSelf;
884                    } else { // pick the engine channel followed by this engine channel
885                        iChannelIndex    = (pEngineChannel->iEngineIndexSelf + 1) % engineChannels.size();
886                        pSelectedChannel = engineChannels[iChannelIndex];
887                    }
888    
889                    // if we already stole in this fragment, try to proceed on same key
890                    if (this->itLastStolenVoiceGlobally) {
891                        itSelectedVoice = this->itLastStolenVoiceGlobally;
892                        do {
893                            ++itSelectedVoice;
894                        } while (itSelectedVoice && !itSelectedVoice->IsStealable()); // proceed iterating if voice was created in this fragment cycle
895                    }
896    
897                    #if CONFIG_DEVMODE
898                    EngineChannel* pBegin = pSelectedChannel; // to detect endless loop
899                    #endif // CONFIG_DEVMODE
900    
901                    // did we find a 'stealable' voice?
902                    if (itSelectedVoice && itSelectedVoice->IsStealable()) {
903                        // remember which voice we stole, so we can simply proceed on next voice stealing
904                        this->itLastStolenVoiceGlobally = itSelectedVoice;
905                    } else while (true) { // iterate through engine channels
906                        // get (next) oldest key
907                        RTList<uint>::Iterator iuiSelectedKey = (this->iuiLastStolenKeyGlobally) ? ++this->iuiLastStolenKeyGlobally : pSelectedChannel->pActiveKeys->first();
908                        this->iuiLastStolenKeyGlobally = RTList<uint>::Iterator(); // to prevent endless loop (see line above)
909                        while (iuiSelectedKey) {
910                          midi_key_info_t* pSelectedKey = &pSelectedChannel->pMIDIKeyInfo[*iuiSelectedKey];                          midi_key_info_t* pSelectedKey = &pSelectedChannel->pMIDIKeyInfo[*iuiSelectedKey];
911                          itSelectedVoice    = pSelectedKey->pActiveVoices->first();                          itSelectedVoice = pSelectedKey->pActiveVoices->first();
912                          iuiLastStolenKey   = iuiSelectedKey;                          // proceed iterating if voice was created in this fragment cycle
913                          pLastStolenChannel = pSelectedChannel;                          while (itSelectedVoice && !itSelectedVoice->IsStealable()) ++itSelectedVoice;
914                          break; // selection succeeded                          // found a "stealable" voice ?
915                            if (itSelectedVoice && itSelectedVoice->IsStealable()) {
916                                // remember which voice on which key on which engine channel we stole, so we can simply proceed on next voice stealing
917                                this->iuiLastStolenKeyGlobally  = iuiSelectedKey;
918                                this->itLastStolenVoiceGlobally = itSelectedVoice;
919                                this->pLastStolenChannel        = pSelectedChannel;
920                                goto stealable_voice_found; // selection succeeded
921                            }
922                            ++iuiSelectedKey; // get next key on current engine channel
923                      }                      }
924                        // get next engine channel
925                      iChannelIndex    = (iChannelIndex + 1) % engineChannels.size();                      iChannelIndex    = (iChannelIndex + 1) % engineChannels.size();
926                      pSelectedChannel =  engineChannels[iChannelIndex];                      pSelectedChannel = engineChannels[iChannelIndex];
927    
928                        #if CONFIG_DEVMODE
929                        if (pSelectedChannel == pBegin) {
930                            dmsg(1,("FATAL ERROR: voice stealing endless loop!\n"));
931                            dmsg(1,("VoiceSpawnsLeft=%d.\n", VoiceSpawnsLeft));
932                            dmsg(1,("Exiting.\n"));
933                            exit(-1);
934                        }
935                        #endif // CONFIG_DEVMODE
936                  }                  }
937              }              }
938    
939              //FIXME: can be removed, just a sanity check for debugging              // jump point if a 'stealable' voice was found
940                stealable_voice_found:
941    
942                #if CONFIG_DEVMODE
943              if (!itSelectedVoice->IsActive()) {              if (!itSelectedVoice->IsActive()) {
944                  dmsg(1,("gig::Engine: ERROR, tried to steal a voice which was not active !!!\n"));                  dmsg(1,("gig::Engine: ERROR, tried to steal a voice which was not active !!!\n"));
945                  return -1;                  return -1;
946              }              }
947                #endif // CONFIG_DEVMODE
948    
949              // now kill the selected voice              // now kill the selected voice
950              itSelectedVoice->Kill(itNoteOnEvent);              itSelectedVoice->Kill(itNoteOnEvent);
951    
952              // remember which voice we stole, so we can simply proceed for the next voice stealing              --VoiceSpawnsLeft;
             itLastStolenVoice = itSelectedVoice;  
   
             --VoiceTheftsLeft;  
953    
954              return 0; // success              return 0; // success
955          }          }
# Line 945  namespace LinuxSampler { namespace gig { Line 1025  namespace LinuxSampler { namespace gig {
1025              case 7: { // volume              case 7: { // volume
1026                  //TODO: not sample accurate yet                  //TODO: not sample accurate yet
1027                  pEngineChannel->GlobalVolume = (float) itControlChangeEventOnCCList->Param.CC.Value / 127.0f;                  pEngineChannel->GlobalVolume = (float) itControlChangeEventOnCCList->Param.CC.Value / 127.0f;
1028                    pEngineChannel->bStatusChanged = true; // engine channel status has changed, so set notify flag
1029                  break;                  break;
1030              }              }
1031              case 10: { // panpot              case 10: { // panpot
# Line 1027  namespace LinuxSampler { namespace gig { Line 1108  namespace LinuxSampler { namespace gig {
1108    
1109          switch (id) {          switch (id) {
1110              case 0x41: { // Roland              case 0x41: { // Roland
1111                    dmsg(3,("Roland Sysex\n"));
1112                  uint8_t device_id, model_id, cmd_id;                  uint8_t device_id, model_id, cmd_id;
1113                  if (!reader.pop(&device_id)) goto free_sysex_data;                  if (!reader.pop(&device_id)) goto free_sysex_data;
1114                  if (!reader.pop(&model_id))  goto free_sysex_data;                  if (!reader.pop(&model_id))  goto free_sysex_data;
# Line 1039  namespace LinuxSampler { namespace gig { Line 1121  namespace LinuxSampler { namespace gig {
1121                  const RingBuffer<uint8_t>::NonVolatileReader checksum_reader = reader; // so we can calculate the check sum later                  const RingBuffer<uint8_t>::NonVolatileReader checksum_reader = reader; // so we can calculate the check sum later
1122                  if (reader.read(&addr[0], 3) != 3) goto free_sysex_data;                  if (reader.read(&addr[0], 3) != 3) goto free_sysex_data;
1123                  if (addr[0] == 0x40 && addr[1] == 0x00) { // System Parameters                  if (addr[0] == 0x40 && addr[1] == 0x00) { // System Parameters
1124                        dmsg(3,("\tSystem Parameter\n"));
1125                  }                  }
1126                  else if (addr[0] == 0x40 && addr[1] == 0x01) { // Common Parameters                  else if (addr[0] == 0x40 && addr[1] == 0x01) { // Common Parameters
1127                        dmsg(3,("\tCommon Parameter\n"));
1128                  }                  }
1129                  else if (addr[0] == 0x40 && (addr[1] & 0xf0) == 0x10) { // Part Parameters (1)                  else if (addr[0] == 0x40 && (addr[1] & 0xf0) == 0x10) { // Part Parameters (1)
1130                      switch (addr[3]) {                      dmsg(3,("\tPart Parameter\n"));
1131                        switch (addr[2]) {
1132                          case 0x40: { // scale tuning                          case 0x40: { // scale tuning
1133                                dmsg(3,("\t\tScale Tuning\n"));
1134                              uint8_t scale_tunes[12]; // detuning of all 12 semitones of an octave                              uint8_t scale_tunes[12]; // detuning of all 12 semitones of an octave
1135                              if (reader.read(&scale_tunes[0], 12) != 12) goto free_sysex_data;                              if (reader.read(&scale_tunes[0], 12) != 12) goto free_sysex_data;
1136                              uint8_t checksum;                              uint8_t checksum;
1137                              if (!reader.pop(&checksum))                      goto free_sysex_data;                              if (!reader.pop(&checksum)) goto free_sysex_data;
1138                              if (GSCheckSum(checksum_reader, 12) != checksum) goto free_sysex_data;                              #if CONFIG_ASSERT_GS_SYSEX_CHECKSUM
1139                                if (GSCheckSum(checksum_reader, 12)) goto free_sysex_data;
1140                                #endif // CONFIG_ASSERT_GS_SYSEX_CHECKSUM
1141                              for (int i = 0; i < 12; i++) scale_tunes[i] -= 64;                              for (int i = 0; i < 12; i++) scale_tunes[i] -= 64;
1142                              AdjustScale((int8_t*) scale_tunes);                              AdjustScale((int8_t*) scale_tunes);
1143                                dmsg(3,("\t\t\tNew scale applied.\n"));
1144                              break;                              break;
1145                          }                          }
1146                      }                      }
# Line 1136  namespace LinuxSampler { namespace gig { Line 1225  namespace LinuxSampler { namespace gig {
1225              RTList<Voice>::Iterator itVoicesEnd = pKey->pActiveVoices->end();              RTList<Voice>::Iterator itVoicesEnd = pKey->pActiveVoices->end();
1226              for (; itVoice != itVoicesEnd; ++itVoice) { // iterate through all voices on this key              for (; itVoice != itVoicesEnd; ++itVoice) { // iterate through all voices on this key
1227                  itVoice->Kill(itKillEvent);                  itVoice->Kill(itKillEvent);
1228                    --VoiceSpawnsLeft; //FIXME: just a temporary workaround, we should check the cause in StealVoice() instead
1229              }              }
1230          }          }
1231      }      }
# Line 1184  namespace LinuxSampler { namespace gig { Line 1274  namespace LinuxSampler { namespace gig {
1274      }      }
1275    
1276      String Engine::EngineName() {      String Engine::EngineName() {
1277          return "GigEngine";          return LS_GIG_ENGINE_NAME;
1278      }      }
1279    
1280      String Engine::Description() {      String Engine::Description() {
# Line 1192  namespace LinuxSampler { namespace gig { Line 1282  namespace LinuxSampler { namespace gig {
1282      }      }
1283    
1284      String Engine::Version() {      String Engine::Version() {
1285          String s = "$Revision: 1.33 $";          String s = "$Revision: 1.45 $";
1286          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
1287      }      }
1288    
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