/[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 271 by schoenebeck, Fri Oct 8 20:51:39 2004 UTC revision 351 by schoenebeck, Tue Jan 25 22:11:43 2005 UTC
# Line 23  Line 23 
23  #include <sstream>  #include <sstream>
24  #include "DiskThread.h"  #include "DiskThread.h"
25  #include "Voice.h"  #include "Voice.h"
26    #include "EGADSR.h"
27    
28  #include "Engine.h"  #include "Engine.h"
29    #include <malloc.h>
30    
31  namespace LinuxSampler { namespace gig {  namespace LinuxSampler { namespace gig {
32    
# Line 75  namespace LinuxSampler { namespace gig { Line 77  namespace LinuxSampler { namespace gig {
77    
78      Engine::~Engine() {      Engine::~Engine() {
79          if (pDiskThread) {          if (pDiskThread) {
80                dmsg(1,("Stopping disk thread..."));
81              pDiskThread->StopThread();              pDiskThread->StopThread();
82              delete pDiskThread;              delete pDiskThread;
83                dmsg(1,("OK\n"));
84          }          }
85    
86            if (pInstrument) Instruments.HandBack(pInstrument, this);
87    
88          if (pGig)  delete pGig;          if (pGig)  delete pGig;
89          if (pRIFF) delete pRIFF;          if (pRIFF) delete pRIFF;
90          for (uint i = 0; i < 128; i++) {          for (uint i = 0; i < 128; i++) {
# Line 87  namespace LinuxSampler { namespace gig { Line 94  namespace LinuxSampler { namespace gig {
94          for (uint i = 0; i < Event::destination_count; i++) {          for (uint i = 0; i < Event::destination_count; i++) {
95              if (pSynthesisEvents[i]) delete pSynthesisEvents[i];              if (pSynthesisEvents[i]) delete pSynthesisEvents[i];
96          }          }
         delete[] pSynthesisEvents;  
97          if (pEvents)     delete pEvents;          if (pEvents)     delete pEvents;
98          if (pCCEvents)   delete pCCEvents;          if (pCCEvents)   delete pCCEvents;
99          if (pEventQueue) delete pEventQueue;          if (pEventQueue) delete pEventQueue;
100          if (pEventPool)  delete pEventPool;          if (pEventPool)  delete pEventPool;
101          if (pVoicePool)  delete pVoicePool;          if (pVoicePool) {
102                    pVoicePool->clear();
103                    delete pVoicePool;
104            }
105          if (pActiveKeys) delete pActiveKeys;          if (pActiveKeys) delete pActiveKeys;
106          if (pSysexBuffer) delete pSysexBuffer;          if (pSysexBuffer) delete pSysexBuffer;
107          if (pEventGenerator) delete pEventGenerator;          if (pEventGenerator) delete pEventGenerator;
108          if (pMainFilterParameters) delete[] pMainFilterParameters;          if (pMainFilterParameters) delete[] pMainFilterParameters;
109          if (pBasicFilterParameters) delete[] pBasicFilterParameters;          if (pBasicFilterParameters) delete[] pBasicFilterParameters;
110          if (pSynthesisParameters[0]) delete[] pSynthesisParameters[0];          if (pSynthesisParameters[0]) free(pSynthesisParameters[0]);
111          if (pVoiceStealingQueue) delete pVoiceStealingQueue;          if (pVoiceStealingQueue) delete pVoiceStealingQueue;
112      }      }
113    
# Line 313  namespace LinuxSampler { namespace gig { Line 322  namespace LinuxSampler { namespace gig {
322          this->MaxSamplesPerCycle      = pAudioOutputDevice->MaxSamplesPerCycle();          this->MaxSamplesPerCycle      = pAudioOutputDevice->MaxSamplesPerCycle();
323          this->SampleRate              = pAudioOutputDevice->SampleRate();          this->SampleRate              = pAudioOutputDevice->SampleRate();
324    
325            // FIXME: audio drivers with varying fragment sizes might be a problem here
326            MaxFadeOutPos = MaxSamplesPerCycle - int(double(SampleRate) * EG_MIN_RELEASE_TIME) - 1;
327            if (MaxFadeOutPos < 0)
328                throw LinuxSamplerException("EG_MIN_RELEASE_TIME in EGADSR.h to big for current audio fragment size / sampling rate!");
329    
330          // (re)create disk thread          // (re)create disk thread
331          if (this->pDiskThread) {          if (this->pDiskThread) {
332                dmsg(1,("Stopping disk thread..."));
333              this->pDiskThread->StopThread();              this->pDiskThread->StopThread();
334              delete this->pDiskThread;              delete this->pDiskThread;
335                dmsg(1,("OK\n"));
336          }          }
337          this->pDiskThread = new DiskThread(((pAudioOut->MaxSamplesPerCycle() << MAX_PITCH) << 1) + 6); //FIXME: assuming stereo          this->pDiskThread = new DiskThread(((pAudioOut->MaxSamplesPerCycle() << MAX_PITCH) << 1) + 6); //FIXME: assuming stereo
338          if (!pDiskThread) {          if (!pDiskThread) {
# Line 335  namespace LinuxSampler { namespace gig { Line 351  namespace LinuxSampler { namespace gig {
351          pEventGenerator = new EventGenerator(pAudioOut->SampleRate());          pEventGenerator = new EventGenerator(pAudioOut->SampleRate());
352    
353          // (re)allocate synthesis parameter matrix          // (re)allocate synthesis parameter matrix
354          if (pSynthesisParameters[0]) delete[] pSynthesisParameters[0];          if (pSynthesisParameters[0]) free(pSynthesisParameters[0]);
355          pSynthesisParameters[0] = new float[Event::destination_count * pAudioOut->MaxSamplesPerCycle()];          pSynthesisParameters[0] = (float *) memalign(16,(Event::destination_count * sizeof(float) * pAudioOut->MaxSamplesPerCycle()));
356          for (int dst = 1; dst < Event::destination_count; dst++)          for (int dst = 1; dst < Event::destination_count; dst++)
357              pSynthesisParameters[dst] = pSynthesisParameters[dst - 1] + pAudioOut->MaxSamplesPerCycle();              pSynthesisParameters[dst] = pSynthesisParameters[dst - 1] + pAudioOut->MaxSamplesPerCycle();
358    
# Line 392  namespace LinuxSampler { namespace gig { Line 408  namespace LinuxSampler { namespace gig {
408          }          }
409    
410    
411            // update time of start and end of this audio fragment (as events' time stamps relate to this)
412            pEventGenerator->UpdateFragmentTime(Samples);
413    
414    
415          // empty the event lists for the new fragment          // empty the event lists for the new fragment
416          pEvents->clear();          pEvents->clear();
417          pCCEvents->clear();          pCCEvents->clear();
# Line 406  namespace LinuxSampler { namespace gig { Line 426  namespace LinuxSampler { namespace gig {
426              }              }
427          }          }
428    
         // read and copy events from input queue  
         Event event = pEventGenerator->CreateEvent();  
         while (true) {  
             if (!pEventQueue->pop(&event) || pEvents->poolIsEmpty()) break;  
             *pEvents->allocAppend() = event;  
         }  
   
429    
430          // update time of start and end of this audio fragment (as events' time stamps relate to this)          // get all events from the input event queue which belong to the current fragment
431          pEventGenerator->UpdateFragmentTime(Samples);          {
432                RingBuffer<Event>::NonVolatileReader eventQueueReader = pEventQueue->get_non_volatile_reader();
433                Event* pEvent;
434                while (true) {
435                    // get next event from input event queue
436                    if (!(pEvent = eventQueueReader.pop())) break;
437                    // if younger event reached, ignore that and all subsequent ones for now
438                    if (pEvent->FragmentPos() >= Samples) {
439                        eventQueueReader--;
440                        dmsg(2,("Younger Event, pos=%d ,Samples=%d!\n",pEvent->FragmentPos(),Samples));
441                        pEvent->ResetFragmentPos();
442                        break;
443                    }
444                    // copy event to internal event list
445                    if (pEvents->poolIsEmpty()) {
446                        dmsg(1,("Event pool emtpy!\n"));
447                        break;
448                    }
449                    *pEvents->allocAppend() = *pEvent;
450                }
451                eventQueueReader.free(); // free all copied events from input queue
452            }
453    
454    
455          // process events          // process events
# Line 466  namespace LinuxSampler { namespace gig { Line 500  namespace LinuxSampler { namespace gig {
500                      itVoice->Render(Samples);                      itVoice->Render(Samples);
501                      if (itVoice->IsActive()) active_voices++; // still active                      if (itVoice->IsActive()) active_voices++; // still active
502                      else { // voice reached end, is now inactive                      else { // voice reached end, is now inactive
503                          KillVoiceImmediately(itVoice); // remove voice from the list of active voices                          FreeVoice(itVoice); // remove voice from the list of active voices
504                      }                      }
505                  }                  }
506              }              }
# Line 480  namespace LinuxSampler { namespace gig { Line 514  namespace LinuxSampler { namespace gig {
514              for (; itVoiceStealEvent != end; ++itVoiceStealEvent) {              for (; itVoiceStealEvent != end; ++itVoiceStealEvent) {
515                  Pool<Voice>::Iterator itNewVoice = LaunchVoice(itVoiceStealEvent, itVoiceStealEvent->Param.Note.Layer, itVoiceStealEvent->Param.Note.ReleaseTrigger, false);                  Pool<Voice>::Iterator itNewVoice = LaunchVoice(itVoiceStealEvent, itVoiceStealEvent->Param.Note.Layer, itVoiceStealEvent->Param.Note.ReleaseTrigger, false);
516                  if (itNewVoice) {                  if (itNewVoice) {
517                      itNewVoice->Render(Samples);                      for (; itNewVoice; itNewVoice = itNewVoice->itChildVoice) {
518                      if (itNewVoice->IsActive()) active_voices++; // still active                          itNewVoice->Render(Samples);
519                      else { // voice reached end, is now inactive                          if (itNewVoice->IsActive()) active_voices++; // still active
520                          KillVoiceImmediately(itNewVoice); // remove voice from the list of active voices                          else { // voice reached end, is now inactive
521                                FreeVoice(itNewVoice); // remove voice from the list of active voices
522                            }
523                      }                      }
524                  }                  }
525                  else dmsg(1,("Ouch, voice stealing didn't work out!\n"));                  else dmsg(1,("gig::Engine: ERROR, voice stealing didn't work out!\n"));
526              }              }
527          }          }
528          // reset voice stealing for the new fragment          // reset voice stealing for the new fragment
# Line 495  namespace LinuxSampler { namespace gig { Line 531  namespace LinuxSampler { namespace gig {
531          iuiLastStolenKey  = RTList<uint>::Iterator();          iuiLastStolenKey  = RTList<uint>::Iterator();
532    
533    
534            // free all keys which have no active voices left
535            {
536                RTList<uint>::Iterator iuiKey = pActiveKeys->first();
537                RTList<uint>::Iterator end    = pActiveKeys->end();
538                while (iuiKey != end) { // iterate through all active keys
539                    midi_key_info_t* pKey = &pMIDIKeyInfo[*iuiKey];
540                    ++iuiKey;
541                    if (pKey->pActiveVoices->isEmpty()) FreeKey(pKey);
542                    #if DEVMODE
543                    else { // FIXME: should be removed before the final release (purpose: just a sanity check for debugging)
544                        RTList<Voice>::Iterator itVoice     = pKey->pActiveVoices->first();
545                        RTList<Voice>::Iterator itVoicesEnd = pKey->pActiveVoices->end();
546                        for (; itVoice != itVoicesEnd; ++itVoice) { // iterate through all voices on this key
547                            if (itVoice->itKillEvent) {
548                                dmsg(1,("gig::Engine: ERROR, killed voice survived !!!\n"));
549                            }
550                        }
551                    }
552                    #endif // DEVMODE
553                }
554            }
555    
556    
557          // write that to the disk thread class so that it can print it          // write that to the disk thread class so that it can print it
558          // on the console for debugging purposes          // on the console for debugging purposes
559          ActiveVoiceCount = active_voices;          ActiveVoiceCount = active_voices;
# Line 621  namespace LinuxSampler { namespace gig { Line 680  namespace LinuxSampler { namespace gig {
680          RTList<Event>::Iterator itNoteOnEventOnKeyList = itNoteOnEvent.moveToEndOf(pKey->pEvents);          RTList<Event>::Iterator itNoteOnEventOnKeyList = itNoteOnEvent.moveToEndOf(pKey->pEvents);
681    
682          // allocate and trigger a new voice for the key          // allocate and trigger a new voice for the key
683          LaunchVoice(itNoteOnEventOnKeyList);          LaunchVoice(itNoteOnEventOnKeyList, 0, false, true);
684      }      }
685    
686      /**      /**
# Line 647  namespace LinuxSampler { namespace gig { Line 706  namespace LinuxSampler { namespace gig {
706    
707          // spawn release triggered voice(s) if needed          // spawn release triggered voice(s) if needed
708          if (pKey->ReleaseTrigger) {          if (pKey->ReleaseTrigger) {
709              LaunchVoice(itNoteOffEventOnKeyList, 0, true);              LaunchVoice(itNoteOffEventOnKeyList, 0, true, false); //FIXME: for the moment we don't perform voice stealing for release triggered samples
710              pKey->ReleaseTrigger = false;              pKey->ReleaseTrigger = false;
711          }          }
712      }      }
# Line 686  namespace LinuxSampler { namespace gig { Line 745  namespace LinuxSampler { namespace gig {
745          Pool<Voice>::Iterator itNewVoice = pKey->pActiveVoices->allocAppend();          Pool<Voice>::Iterator itNewVoice = pKey->pActiveVoices->allocAppend();
746          if (itNewVoice) {          if (itNewVoice) {
747              // launch the new voice              // launch the new voice
748              if (itNewVoice->Trigger(itNoteOnEvent, this->Pitch, this->pInstrument, iLayer, ReleaseTriggerVoice) < 0) {              if (itNewVoice->Trigger(itNoteOnEvent, this->Pitch, this->pInstrument, iLayer, ReleaseTriggerVoice, VoiceStealing) < 0) {
749                  dmsg(1,("Triggering new voice failed!\n"));                  dmsg(1,("Triggering new voice failed!\n"));
750                  pKey->pActiveVoices->free(itNewVoice);                  pKey->pActiveVoices->free(itNewVoice);
751              }              }
# Line 716  namespace LinuxSampler { namespace gig { Line 775  namespace LinuxSampler { namespace gig {
775                  return itNewVoice; // success                  return itNewVoice; // success
776              }              }
777          }          }
778          else if (VoiceStealing) StealVoice(itNoteOnEvent, iLayer, ReleaseTriggerVoice); // no free voice left, so steal one          else if (VoiceStealing) {
779                // first, get total amount of required voices (dependant on amount of layers)
780                ::gig::Region* pRegion = pInstrument->GetRegion(itNoteOnEvent->Param.Note.Key);
781                if (!pRegion) return Pool<Voice>::Iterator(); // nothing defined for this MIDI key, so no voice needed
782                int voicesRequired = pRegion->Layers;
783    
784                // now steal the (remaining) amount of voices
785                for (int i = iLayer; i < voicesRequired; i++)
786                    StealVoice(itNoteOnEvent);
787    
788                // put note-on event into voice-stealing queue, so it will be reprocessed after killed voice died
789                RTList<Event>::Iterator itStealEvent = pVoiceStealingQueue->allocAppend();
790                if (itStealEvent) {
791                    *itStealEvent = *itNoteOnEvent; // copy event
792                    itStealEvent->Param.Note.Layer = iLayer;
793                    itStealEvent->Param.Note.ReleaseTrigger = ReleaseTriggerVoice;
794                }
795                else dmsg(1,("Voice stealing queue full!\n"));
796            }
797    
798          return Pool<Voice>::Iterator(); // no free voice or error          return Pool<Voice>::Iterator(); // no free voice or error
799      }      }
# Line 727  namespace LinuxSampler { namespace gig { Line 804  namespace LinuxSampler { namespace gig {
804       *  voice stealing and postpone the note-on event until the selected       *  voice stealing and postpone the note-on event until the selected
805       *  voice actually died.       *  voice actually died.
806       *       *
807       *  @param itNoteOnEvent       - key, velocity and time stamp of the event       *  @param itNoteOnEvent - key, velocity and time stamp of the event
      *  @param iLayer              - layer index for the new voice  
      *  @param ReleaseTriggerVoice - if new voice is a release triggered voice  
808       */       */
809      void Engine::StealVoice(Pool<Event>::Iterator& itNoteOnEvent, int iLayer, bool ReleaseTriggerVoice) {      void Engine::StealVoice(Pool<Event>::Iterator& itNoteOnEvent) {
810          if (!pEventPool->poolIsEmpty()) {          if (!pEventPool->poolIsEmpty()) {
811    
812              RTList<uint>::Iterator  iuiOldestKey;              RTList<uint>::Iterator  iuiOldestKey;
# Line 773  namespace LinuxSampler { namespace gig { Line 848  namespace LinuxSampler { namespace gig {
848                                  midi_key_info_t* pOldestKey = &pMIDIKeyInfo[*iuiOldestKey];                                  midi_key_info_t* pOldestKey = &pMIDIKeyInfo[*iuiOldestKey];
849                                  itOldestVoice = pOldestKey->pActiveVoices->first();                                  itOldestVoice = pOldestKey->pActiveVoices->first();
850                              }                              }
851                              else { // too less voices, even for voice stealing                              else {
852                                  dmsg(1,("Voice overflow! - You might recompile with higher MAX_AUDIO_VOICES!\n"));                                  dmsg(1,("gig::Engine: Warning, too less voices, even for voice stealing! - Better recompile with higher MAX_AUDIO_VOICES.\n"));
853                                  return;                                  return;
854                              }                              }
855                          }                          }
# Line 796  namespace LinuxSampler { namespace gig { Line 871  namespace LinuxSampler { namespace gig {
871                  }                  }
872              }              }
873    
874                //FIXME: can be removed, just a sanity check for debugging
875                if (!itOldestVoice->IsActive()) dmsg(1,("gig::Engine: ERROR, tried to steal a voice which was not active !!!\n"));
876    
877              // now kill the selected voice              // now kill the selected voice
878              itOldestVoice->Kill(itNoteOnEvent);              itOldestVoice->Kill(itNoteOnEvent);
879              // remember which voice on which key we stole, so we can simply proceed for the next voice stealing              // remember which voice on which key we stole, so we can simply proceed for the next voice stealing
880              this->itLastStolenVoice = itOldestVoice;              this->itLastStolenVoice = itOldestVoice;
881              this->iuiLastStolenKey = iuiOldestKey;              this->iuiLastStolenKey = iuiOldestKey;
             // put note-on event into voice-stealing queue, so it will be reprocessed after killed voice died  
             RTList<Event>::Iterator itStealEvent = pVoiceStealingQueue->allocAppend();  
             if (itStealEvent) {  
                 *itStealEvent = *itNoteOnEvent; // copy event  
                 itStealEvent->Param.Note.Layer = iLayer;  
                 itStealEvent->Param.Note.ReleaseTrigger = ReleaseTriggerVoice;  
             }  
             else dmsg(1,("Voice stealing queue full!\n"));  
882          }          }
883          else dmsg(1,("Event pool emtpy!\n"));          else dmsg(1,("Event pool emtpy!\n"));
884      }      }
885    
886      /**      /**
887       *  Immediately kills the voice given with pVoice (no matter if sustain is       *  Removes the given voice from the MIDI key's list of active voices.
888       *  pressed or not) and removes it from the MIDI key's list of active voice.       *  This method will be called when a voice went inactive, e.g. because
889       *  This method will e.g. be called if a voice went inactive by itself.       *  it finished to playback its sample, finished its release stage or
890         *  just was killed.
891       *       *
892       *  @param itVoice - points to the voice to be killed       *  @param itVoice - points to the voice to be freed
893       */       */
894      void Engine::KillVoiceImmediately(Pool<Voice>::Iterator& itVoice) {      void Engine::FreeVoice(Pool<Voice>::Iterator& itVoice) {
895          if (itVoice) {          if (itVoice) {
             if (itVoice->IsActive()) itVoice->KillImmediately();  
   
896              midi_key_info_t* pKey = &pMIDIKeyInfo[itVoice->MIDIKey];              midi_key_info_t* pKey = &pMIDIKeyInfo[itVoice->MIDIKey];
897    
898              uint keygroup = itVoice->KeyGroup;              uint keygroup = itVoice->KeyGroup;
# Line 831  namespace LinuxSampler { namespace gig { Line 900  namespace LinuxSampler { namespace gig {
900              // free the voice object              // free the voice object
901              pVoicePool->free(itVoice);              pVoicePool->free(itVoice);
902    
903              // check if there are no voices left on the MIDI key and update the key info if so              // if no other voices left and member of a key group, remove from key group
904              if (pKey->pActiveVoices->isEmpty()) {              if (pKey->pActiveVoices->isEmpty() && keygroup) {
905                  if (keygroup) { // if voice / key belongs to a key group                  uint** ppKeyGroup = &ActiveKeyGroups[keygroup];
906                      uint** ppKeyGroup = &ActiveKeyGroups[keygroup];                  if (*ppKeyGroup == &*pKey->itSelf) *ppKeyGroup = NULL; // remove key from key group
                     if (*ppKeyGroup == &*pKey->itSelf) *ppKeyGroup = NULL; // remove key from key group  
                 }  
                 pKey->Active = false;  
                 pActiveKeys->free(pKey->itSelf); // remove key from list of active keys  
                 pKey->itSelf = RTList<uint>::Iterator();  
                 pKey->ReleaseTrigger = false;  
                 pKey->pEvents->clear();  
                 dmsg(3,("Key has no more voices now\n"));  
907              }              }
908          }          }
909          else std::cerr << "Couldn't release voice! (pVoice == NULL)\n" << std::flush;          else std::cerr << "Couldn't release voice! (!itVoice)\n" << std::flush;
910        }
911    
912        /**
913         *  Called when there's no more voice left on a key, this call will
914         *  update the key info respectively.
915         *
916         *  @param pKey - key which is now inactive
917         */
918        void Engine::FreeKey(midi_key_info_t* pKey) {
919            if (pKey->pActiveVoices->isEmpty()) {
920                pKey->Active = false;
921                pActiveKeys->free(pKey->itSelf); // remove key from list of active keys
922                pKey->itSelf = RTList<uint>::Iterator();
923                pKey->ReleaseTrigger = false;
924                pKey->pEvents->clear();
925                dmsg(3,("Key has no more voices now\n"));
926            }
927            else dmsg(1,("gig::Engine: Oops, tried to free a key which contains voices.\n"));
928      }      }
929    
930      /**      /**
# Line 1095  namespace LinuxSampler { namespace gig { Line 1174  namespace LinuxSampler { namespace gig {
1174      }      }
1175    
1176      String Engine::Version() {      String Engine::Version() {
1177          String s = "$Revision: 1.15 $";          String s = "$Revision: 1.21 $";
1178          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
1179      }      }
1180    
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