/[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 287 by schoenebeck, Sat Oct 16 17:38:03 2004 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    
# Line 313  namespace LinuxSampler { namespace gig { Line 314  namespace LinuxSampler { namespace gig {
314          this->MaxSamplesPerCycle      = pAudioOutputDevice->MaxSamplesPerCycle();          this->MaxSamplesPerCycle      = pAudioOutputDevice->MaxSamplesPerCycle();
315          this->SampleRate              = pAudioOutputDevice->SampleRate();          this->SampleRate              = pAudioOutputDevice->SampleRate();
316    
317            // FIXME: audio drivers with varying fragment sizes might be a problem here
318            MaxFadeOutPos = MaxSamplesPerCycle - int(double(SampleRate) * EG_MIN_RELEASE_TIME) - 1;
319            if (MaxFadeOutPos < 0)
320                throw LinuxSamplerException("EG_MIN_RELEASE_TIME in EGADSR.h to big for current audio fragment size / sampling rate!");
321    
322          // (re)create disk thread          // (re)create disk thread
323          if (this->pDiskThread) {          if (this->pDiskThread) {
324              this->pDiskThread->StopThread();              this->pDiskThread->StopThread();
# Line 466  namespace LinuxSampler { namespace gig { Line 472  namespace LinuxSampler { namespace gig {
472                      itVoice->Render(Samples);                      itVoice->Render(Samples);
473                      if (itVoice->IsActive()) active_voices++; // still active                      if (itVoice->IsActive()) active_voices++; // still active
474                      else { // voice reached end, is now inactive                      else { // voice reached end, is now inactive
475                          KillVoiceImmediately(itVoice); // remove voice from the list of active voices                          FreeVoice(itVoice); // remove voice from the list of active voices
476                      }                      }
477                  }                  }
478              }              }
# Line 480  namespace LinuxSampler { namespace gig { Line 486  namespace LinuxSampler { namespace gig {
486              for (; itVoiceStealEvent != end; ++itVoiceStealEvent) {              for (; itVoiceStealEvent != end; ++itVoiceStealEvent) {
487                  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);
488                  if (itNewVoice) {                  if (itNewVoice) {
489                      itNewVoice->Render(Samples);                      for (; itNewVoice; itNewVoice = itNewVoice->itChildVoice) {
490                      if (itNewVoice->IsActive()) active_voices++; // still active                          itNewVoice->Render(Samples);
491                      else { // voice reached end, is now inactive                          if (itNewVoice->IsActive()) active_voices++; // still active
492                          KillVoiceImmediately(itNewVoice); // remove voice from the list of active voices                          else { // voice reached end, is now inactive
493                                FreeVoice(itNewVoice); // remove voice from the list of active voices
494                            }
495                      }                      }
496                  }                  }
497                  else dmsg(1,("Ouch, voice stealing didn't work out!\n"));                  else dmsg(1,("gig::Engine: ERROR, voice stealing didn't work out!\n"));
498              }              }
499          }          }
500          // reset voice stealing for the new fragment          // reset voice stealing for the new fragment
# Line 495  namespace LinuxSampler { namespace gig { Line 503  namespace LinuxSampler { namespace gig {
503          iuiLastStolenKey  = RTList<uint>::Iterator();          iuiLastStolenKey  = RTList<uint>::Iterator();
504    
505    
506            // free all keys which have no active voices left
507            {
508                RTList<uint>::Iterator iuiKey = pActiveKeys->first();
509                RTList<uint>::Iterator end    = pActiveKeys->end();
510                while (iuiKey != end) { // iterate through all active keys
511                    midi_key_info_t* pKey = &pMIDIKeyInfo[*iuiKey];
512                    ++iuiKey;
513                    if (pKey->pActiveVoices->isEmpty()) FreeKey(pKey);
514                    #if DEVMODE
515                    else { // FIXME: should be removed before the final release (purpose: just a sanity check for debugging)
516                        RTList<Voice>::Iterator itVoice     = pKey->pActiveVoices->first();
517                        RTList<Voice>::Iterator itVoicesEnd = pKey->pActiveVoices->end();
518                        for (; itVoice != itVoicesEnd; ++itVoice) { // iterate through all voices on this key
519                            if (itVoice->itKillEvent) {
520                                dmsg(1,("gig::Engine: ERROR, killed voice survived !!!\n"));
521                            }
522                        }
523                    }
524                    #endif // DEVMODE
525                }
526            }
527    
528    
529          // 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
530          // on the console for debugging purposes          // on the console for debugging purposes
531          ActiveVoiceCount = active_voices;          ActiveVoiceCount = active_voices;
# Line 621  namespace LinuxSampler { namespace gig { Line 652  namespace LinuxSampler { namespace gig {
652          RTList<Event>::Iterator itNoteOnEventOnKeyList = itNoteOnEvent.moveToEndOf(pKey->pEvents);          RTList<Event>::Iterator itNoteOnEventOnKeyList = itNoteOnEvent.moveToEndOf(pKey->pEvents);
653    
654          // allocate and trigger a new voice for the key          // allocate and trigger a new voice for the key
655          LaunchVoice(itNoteOnEventOnKeyList);          LaunchVoice(itNoteOnEventOnKeyList, 0, false, true);
656      }      }
657    
658      /**      /**
# Line 647  namespace LinuxSampler { namespace gig { Line 678  namespace LinuxSampler { namespace gig {
678    
679          // spawn release triggered voice(s) if needed          // spawn release triggered voice(s) if needed
680          if (pKey->ReleaseTrigger) {          if (pKey->ReleaseTrigger) {
681              LaunchVoice(itNoteOffEventOnKeyList, 0, true);              LaunchVoice(itNoteOffEventOnKeyList, 0, true, false); //FIXME: for the moment we don't perform voice stealing for release triggered samples
682              pKey->ReleaseTrigger = false;              pKey->ReleaseTrigger = false;
683          }          }
684      }      }
# Line 686  namespace LinuxSampler { namespace gig { Line 717  namespace LinuxSampler { namespace gig {
717          Pool<Voice>::Iterator itNewVoice = pKey->pActiveVoices->allocAppend();          Pool<Voice>::Iterator itNewVoice = pKey->pActiveVoices->allocAppend();
718          if (itNewVoice) {          if (itNewVoice) {
719              // launch the new voice              // launch the new voice
720              if (itNewVoice->Trigger(itNoteOnEvent, this->Pitch, this->pInstrument, iLayer, ReleaseTriggerVoice) < 0) {              if (itNewVoice->Trigger(itNoteOnEvent, this->Pitch, this->pInstrument, iLayer, ReleaseTriggerVoice, VoiceStealing) < 0) {
721                  dmsg(1,("Triggering new voice failed!\n"));                  dmsg(1,("Triggering new voice failed!\n"));
722                  pKey->pActiveVoices->free(itNewVoice);                  pKey->pActiveVoices->free(itNewVoice);
723              }              }
# Line 716  namespace LinuxSampler { namespace gig { Line 747  namespace LinuxSampler { namespace gig {
747                  return itNewVoice; // success                  return itNewVoice; // success
748              }              }
749          }          }
750          else if (VoiceStealing) StealVoice(itNoteOnEvent, iLayer, ReleaseTriggerVoice); // no free voice left, so steal one          else if (VoiceStealing) {
751                // first, get total amount of required voices (dependant on amount of layers)
752                ::gig::Region* pRegion = pInstrument->GetRegion(itNoteOnEvent->Param.Note.Key);
753                if (!pRegion) return Pool<Voice>::Iterator(); // nothing defined for this MIDI key, so no voice needed
754                int voicesRequired = pRegion->Layers;
755    
756                // now steal the (remaining) amount of voices
757                for (int i = iLayer; i < voicesRequired; i++)
758                    StealVoice(itNoteOnEvent);
759    
760                // put note-on event into voice-stealing queue, so it will be reprocessed after killed voice died
761                RTList<Event>::Iterator itStealEvent = pVoiceStealingQueue->allocAppend();
762                if (itStealEvent) {
763                    *itStealEvent = *itNoteOnEvent; // copy event
764                    itStealEvent->Param.Note.Layer = iLayer;
765                    itStealEvent->Param.Note.ReleaseTrigger = ReleaseTriggerVoice;
766                }
767                else dmsg(1,("Voice stealing queue full!\n"));
768            }
769    
770          return Pool<Voice>::Iterator(); // no free voice or error          return Pool<Voice>::Iterator(); // no free voice or error
771      }      }
# Line 727  namespace LinuxSampler { namespace gig { Line 776  namespace LinuxSampler { namespace gig {
776       *  voice stealing and postpone the note-on event until the selected       *  voice stealing and postpone the note-on event until the selected
777       *  voice actually died.       *  voice actually died.
778       *       *
779       *  @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  
780       */       */
781      void Engine::StealVoice(Pool<Event>::Iterator& itNoteOnEvent, int iLayer, bool ReleaseTriggerVoice) {      void Engine::StealVoice(Pool<Event>::Iterator& itNoteOnEvent) {
782          if (!pEventPool->poolIsEmpty()) {          if (!pEventPool->poolIsEmpty()) {
783    
784              RTList<uint>::Iterator  iuiOldestKey;              RTList<uint>::Iterator  iuiOldestKey;
# Line 773  namespace LinuxSampler { namespace gig { Line 820  namespace LinuxSampler { namespace gig {
820                                  midi_key_info_t* pOldestKey = &pMIDIKeyInfo[*iuiOldestKey];                                  midi_key_info_t* pOldestKey = &pMIDIKeyInfo[*iuiOldestKey];
821                                  itOldestVoice = pOldestKey->pActiveVoices->first();                                  itOldestVoice = pOldestKey->pActiveVoices->first();
822                              }                              }
823                              else { // too less voices, even for voice stealing                              else {
824                                  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"));
825                                  return;                                  return;
826                              }                              }
827                          }                          }
# Line 796  namespace LinuxSampler { namespace gig { Line 843  namespace LinuxSampler { namespace gig {
843                  }                  }
844              }              }
845    
846                //FIXME: can be removed, just a sanity check for debugging
847                if (!itOldestVoice->IsActive()) dmsg(1,("gig::Engine: ERROR, tried to steal a voice which was not active !!!\n"));
848    
849              // now kill the selected voice              // now kill the selected voice
850              itOldestVoice->Kill(itNoteOnEvent);              itOldestVoice->Kill(itNoteOnEvent);
851              // 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
852              this->itLastStolenVoice = itOldestVoice;              this->itLastStolenVoice = itOldestVoice;
853              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"));  
854          }          }
855          else dmsg(1,("Event pool emtpy!\n"));          else dmsg(1,("Event pool emtpy!\n"));
856      }      }
857    
858      /**      /**
859       *  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.
860       *  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
861       *  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
862         *  just was killed.
863       *       *
864       *  @param itVoice - points to the voice to be killed       *  @param itVoice - points to the voice to be freed
865       */       */
866      void Engine::KillVoiceImmediately(Pool<Voice>::Iterator& itVoice) {      void Engine::FreeVoice(Pool<Voice>::Iterator& itVoice) {
867          if (itVoice) {          if (itVoice) {
             if (itVoice->IsActive()) itVoice->KillImmediately();  
   
868              midi_key_info_t* pKey = &pMIDIKeyInfo[itVoice->MIDIKey];              midi_key_info_t* pKey = &pMIDIKeyInfo[itVoice->MIDIKey];
869    
870              uint keygroup = itVoice->KeyGroup;              uint keygroup = itVoice->KeyGroup;
# Line 831  namespace LinuxSampler { namespace gig { Line 872  namespace LinuxSampler { namespace gig {
872              // free the voice object              // free the voice object
873              pVoicePool->free(itVoice);              pVoicePool->free(itVoice);
874    
875              // 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
876              if (pKey->pActiveVoices->isEmpty()) {              if (pKey->pActiveVoices->isEmpty() && keygroup) {
877                  if (keygroup) { // if voice / key belongs to a key group                  uint** ppKeyGroup = &ActiveKeyGroups[keygroup];
878                      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"));  
879              }              }
880          }          }
881          else std::cerr << "Couldn't release voice! (pVoice == NULL)\n" << std::flush;          else std::cerr << "Couldn't release voice! (!itVoice)\n" << std::flush;
882        }
883    
884        /**
885         *  Called when there's no more voice left on a key, this call will
886         *  update the key info respectively.
887         *
888         *  @param pKey - key which is now inactive
889         */
890        void Engine::FreeKey(midi_key_info_t* pKey) {
891            if (pKey->pActiveVoices->isEmpty()) {
892                pKey->Active = false;
893                pActiveKeys->free(pKey->itSelf); // remove key from list of active keys
894                pKey->itSelf = RTList<uint>::Iterator();
895                pKey->ReleaseTrigger = false;
896                pKey->pEvents->clear();
897                dmsg(3,("Key has no more voices now\n"));
898            }
899            else dmsg(1,("gig::Engine: Oops, tried to free a key which contains voices.\n"));
900      }      }
901    
902      /**      /**
# Line 1095  namespace LinuxSampler { namespace gig { Line 1146  namespace LinuxSampler { namespace gig {
1146      }      }
1147    
1148      String Engine::Version() {      String Engine::Version() {
1149          String s = "$Revision: 1.15 $";          String s = "$Revision: 1.17 $";
1150          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
1151      }      }
1152    

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