/[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 244 by schoenebeck, Fri Sep 17 01:01:11 2004 UTC revision 250 by schoenebeck, Mon Sep 20 00:31:13 2004 UTC
# Line 42  namespace LinuxSampler { namespace gig { Line 42  namespace LinuxSampler { namespace gig {
42          pEventPool         = new RTELMemoryPool<Event>(MAX_EVENTS_PER_FRAGMENT);          pEventPool         = new RTELMemoryPool<Event>(MAX_EVENTS_PER_FRAGMENT);
43          pVoicePool         = new RTELMemoryPool<Voice>(MAX_AUDIO_VOICES);          pVoicePool         = new RTELMemoryPool<Voice>(MAX_AUDIO_VOICES);
44          pActiveKeys        = new RTELMemoryPool<uint>(128);          pActiveKeys        = new RTELMemoryPool<uint>(128);
45            pVoiceStealingQueue = new RTEList<Event>(pEventPool);
46          pEvents            = new RTEList<Event>(pEventPool);          pEvents            = new RTEList<Event>(pEventPool);
47          pCCEvents          = new RTEList<Event>(pEventPool);          pCCEvents          = new RTEList<Event>(pEventPool);
48          for (uint i = 0; i < Event::destination_count; i++) {          for (uint i = 0; i < Event::destination_count; i++) {
# Line 99  namespace LinuxSampler { namespace gig { Line 100  namespace LinuxSampler { namespace gig {
100          if (pMainFilterParameters) delete[] pMainFilterParameters;          if (pMainFilterParameters) delete[] pMainFilterParameters;
101          if (pBasicFilterParameters) delete[] pBasicFilterParameters;          if (pBasicFilterParameters) delete[] pBasicFilterParameters;
102          if (pSynthesisParameters[0]) delete[] pSynthesisParameters[0];          if (pSynthesisParameters[0]) delete[] pSynthesisParameters[0];
103            if (pVoiceStealingQueue) delete pVoiceStealingQueue;
104      }      }
105    
106      void Engine::Enable() {      void Engine::Enable() {
# Line 157  namespace LinuxSampler { namespace gig { Line 159  namespace LinuxSampler { namespace gig {
159          ActiveVoiceCountMax = 0;          ActiveVoiceCountMax = 0;
160          GlobalVolume        = 1.0;          GlobalVolume        = 1.0;
161    
162            // reset voice stealing parameters
163            pLastStolenVoice = NULL;
164            puiLastStolenKey = NULL;
165            pVoiceStealingQueue->clear();
166    
167          // reset to normal chromatic scale (means equal temper)          // reset to normal chromatic scale (means equal temper)
168          memset(&ScaleTuning[0], 0x00, 12);          memset(&ScaleTuning[0], 0x00, 12);
169    
# Line 392  namespace LinuxSampler { namespace gig { Line 399  namespace LinuxSampler { namespace gig {
399          for (uint i = 0; i < Event::destination_count; i++) {          for (uint i = 0; i < Event::destination_count; i++) {
400              pSynthesisEvents[i]->clear();              pSynthesisEvents[i]->clear();
401          }          }
402            for (uint* puiKey = pActiveKeys->first(); puiKey; puiKey = pActiveKeys->next()) {
403                midi_key_info_t* pKey = &pMIDIKeyInfo[*puiKey];
404                pKey->pEvents->clear(); // free all events on the key
405            }
406    
407          // read and copy events from input queue          // read and copy events from input queue
408          Event event = pEventGenerator->CreateEvent();          Event event = pEventGenerator->CreateEvent();
# Line 458  namespace LinuxSampler { namespace gig { Line 469  namespace LinuxSampler { namespace gig {
469                      KillVoiceImmediately(pVoice); // remove voice from the list of active voices                      KillVoiceImmediately(pVoice); // remove voice from the list of active voices
470                  }                  }
471              }              }
             pKey->pEvents->clear(); // free all events on the key  
472          }          }
473    
474    
475            // now render all postponed voices from voice stealing
476            Event* pVoiceStealEvent = pVoiceStealingQueue->first();
477            while (pVoiceStealEvent) {
478                Voice* pNewVoice = LaunchVoice(pVoiceStealEvent, pVoiceStealEvent->Param.Note.Layer, pVoiceStealEvent->Param.Note.ReleaseTrigger, false);
479                if (pNewVoice) {
480                    pNewVoice->Render(Samples);
481                    if (pNewVoice->IsActive()) active_voices++; // still active
482                    else { // voice reached end, is now inactive
483                        KillVoiceImmediately(pNewVoice); // remove voice from the list of active voices
484                    }
485                }
486                else dmsg(1,("Ouch, voice stealing didn't work out!\n"));
487                pVoiceStealEvent = pVoiceStealingQueue->next();
488            }
489            // reset voice stealing for the new fragment
490            pVoiceStealingQueue->clear();
491            pLastStolenVoice = NULL;
492            puiLastStolenKey = NULL;
493    
494    
495          // 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
496          // on the console for debugging purposes          // on the console for debugging purposes
497          ActiveVoiceCount = active_voices;          ActiveVoiceCount = active_voices;
# Line 479  namespace LinuxSampler { namespace gig { Line 509  namespace LinuxSampler { namespace gig {
509       *  @param Velocity - MIDI velocity value of the triggered key       *  @param Velocity - MIDI velocity value of the triggered key
510       */       */
511      void Engine::SendNoteOn(uint8_t Key, uint8_t Velocity) {      void Engine::SendNoteOn(uint8_t Key, uint8_t Velocity) {
512          Event event    = pEventGenerator->CreateEvent();          Event event               = pEventGenerator->CreateEvent();
513          event.Type     = Event::type_note_on;          event.Type                = Event::type_note_on;
514          event.Key      = Key;          event.Param.Note.Key      = Key;
515          event.Velocity = Velocity;          event.Param.Note.Velocity = Velocity;
516          if (this->pEventQueue->write_space() > 0) this->pEventQueue->push(&event);          if (this->pEventQueue->write_space() > 0) this->pEventQueue->push(&event);
517          else dmsg(1,("Engine: Input event queue full!"));          else dmsg(1,("Engine: Input event queue full!"));
518      }      }
# Line 495  namespace LinuxSampler { namespace gig { Line 525  namespace LinuxSampler { namespace gig {
525       *  @param Velocity - MIDI release velocity value of the released key       *  @param Velocity - MIDI release velocity value of the released key
526       */       */
527      void Engine::SendNoteOff(uint8_t Key, uint8_t Velocity) {      void Engine::SendNoteOff(uint8_t Key, uint8_t Velocity) {
528          Event event    = pEventGenerator->CreateEvent();          Event event               = pEventGenerator->CreateEvent();
529          event.Type     = Event::type_note_off;          event.Type                = Event::type_note_off;
530          event.Key      = Key;          event.Param.Note.Key      = Key;
531          event.Velocity = Velocity;          event.Param.Note.Velocity = Velocity;
532          if (this->pEventQueue->write_space() > 0) this->pEventQueue->push(&event);          if (this->pEventQueue->write_space() > 0) this->pEventQueue->push(&event);
533          else dmsg(1,("Engine: Input event queue full!"));          else dmsg(1,("Engine: Input event queue full!"));
534      }      }
# Line 510  namespace LinuxSampler { namespace gig { Line 540  namespace LinuxSampler { namespace gig {
540       *  @param Pitch - MIDI pitch value (-8192 ... +8191)       *  @param Pitch - MIDI pitch value (-8192 ... +8191)
541       */       */
542      void Engine::SendPitchbend(int Pitch) {      void Engine::SendPitchbend(int Pitch) {
543          Event event = pEventGenerator->CreateEvent();          Event event             = pEventGenerator->CreateEvent();
544          event.Type  = Event::type_pitchbend;          event.Type              = Event::type_pitchbend;
545          event.Pitch = Pitch;          event.Param.Pitch.Pitch = Pitch;
546          if (this->pEventQueue->write_space() > 0) this->pEventQueue->push(&event);          if (this->pEventQueue->write_space() > 0) this->pEventQueue->push(&event);
547          else dmsg(1,("Engine: Input event queue full!"));          else dmsg(1,("Engine: Input event queue full!"));
548      }      }
# Line 525  namespace LinuxSampler { namespace gig { Line 555  namespace LinuxSampler { namespace gig {
555       *  @param Value      - value of the control change       *  @param Value      - value of the control change
556       */       */
557      void Engine::SendControlChange(uint8_t Controller, uint8_t Value) {      void Engine::SendControlChange(uint8_t Controller, uint8_t Value) {
558          Event event      = pEventGenerator->CreateEvent();          Event event               = pEventGenerator->CreateEvent();
559          event.Type       = Event::type_control_change;          event.Type                = Event::type_control_change;
560          event.Controller = Controller;          event.Param.CC.Controller = Controller;
561          event.Value      = Value;          event.Param.CC.Value      = Value;
562          if (this->pEventQueue->write_space() > 0) this->pEventQueue->push(&event);          if (this->pEventQueue->write_space() > 0) this->pEventQueue->push(&event);
563          else dmsg(1,("Engine: Input event queue full!"));          else dmsg(1,("Engine: Input event queue full!"));
564      }      }
# Line 541  namespace LinuxSampler { namespace gig { Line 571  namespace LinuxSampler { namespace gig {
571       *  @param Size  - lenght of sysex data (in bytes)       *  @param Size  - lenght of sysex data (in bytes)
572       */       */
573      void Engine::SendSysex(void* pData, uint Size) {      void Engine::SendSysex(void* pData, uint Size) {
574          Event event = pEventGenerator->CreateEvent();          Event event             = pEventGenerator->CreateEvent();
575          event.Type  = Event::type_sysex;          event.Type              = Event::type_sysex;
576          event.Size  = Size;          event.Param.Sysex.Size  = Size;
577          if (pEventQueue->write_space() > 0) {          if (pEventQueue->write_space() > 0) {
578              if (pSysexBuffer->write_space() >= Size) {              if (pSysexBuffer->write_space() >= Size) {
579                  // copy sysex data to input buffer                  // copy sysex data to input buffer
# Line 570  namespace LinuxSampler { namespace gig { Line 600  namespace LinuxSampler { namespace gig {
600       *  @param pNoteOnEvent - key, velocity and time stamp of the event       *  @param pNoteOnEvent - key, velocity and time stamp of the event
601       */       */
602      void Engine::ProcessNoteOn(Event* pNoteOnEvent) {      void Engine::ProcessNoteOn(Event* pNoteOnEvent) {
603          midi_key_info_t* pKey = &pMIDIKeyInfo[pNoteOnEvent->Key];          midi_key_info_t* pKey = &pMIDIKeyInfo[pNoteOnEvent->Param.Note.Key];
604    
605          pKey->KeyPressed = true; // the MIDI key was now pressed down          pKey->KeyPressed = true; // the MIDI key was now pressed down
606    
# Line 600  namespace LinuxSampler { namespace gig { Line 630  namespace LinuxSampler { namespace gig {
630       *  @param pNoteOffEvent - key, velocity and time stamp of the event       *  @param pNoteOffEvent - key, velocity and time stamp of the event
631       */       */
632      void Engine::ProcessNoteOff(Event* pNoteOffEvent) {      void Engine::ProcessNoteOff(Event* pNoteOffEvent) {
633          midi_key_info_t* pKey = &pMIDIKeyInfo[pNoteOffEvent->Key];          midi_key_info_t* pKey = &pMIDIKeyInfo[pNoteOffEvent->Param.Note.Key];
634    
635          pKey->KeyPressed = false; // the MIDI key was now released          pKey->KeyPressed = false; // the MIDI key was now released
636    
# Line 626  namespace LinuxSampler { namespace gig { Line 656  namespace LinuxSampler { namespace gig {
656       *  @param pPitchbendEvent - absolute pitch value and time stamp of the event       *  @param pPitchbendEvent - absolute pitch value and time stamp of the event
657       */       */
658      void Engine::ProcessPitchbend(Event* pPitchbendEvent) {      void Engine::ProcessPitchbend(Event* pPitchbendEvent) {
659          this->Pitch = pPitchbendEvent->Pitch; // store current pitch value          this->Pitch = pPitchbendEvent->Param.Pitch.Pitch; // store current pitch value
660          pEvents->move(pPitchbendEvent, pSynthesisEvents[Event::destination_vco]);          pEvents->move(pPitchbendEvent, pSynthesisEvents[Event::destination_vco]);
661      }      }
662    
# Line 640  namespace LinuxSampler { namespace gig { Line 670  namespace LinuxSampler { namespace gig {
670       *                               in case of layered sounds of course)       *                               in case of layered sounds of course)
671       *  @param ReleaseTriggerVoice - if new voice is a release triggered voice       *  @param ReleaseTriggerVoice - if new voice is a release triggered voice
672       *                               (optional, default = false)       *                               (optional, default = false)
673         *  @param VoiceStealing       - if voice stealing should be performed
674         *                               when there is no free voice
675         *                               (optional, default = true)
676         *  @returns pointer to new voice or NULL if there was no free voice or
677         *           if an error occured while trying to trigger the new voice
678       */       */
679      void Engine::LaunchVoice(Event* pNoteOnEvent, int iLayer, bool ReleaseTriggerVoice) {      Voice* Engine::LaunchVoice(Event* pNoteOnEvent, int iLayer, bool ReleaseTriggerVoice, bool VoiceStealing) {
680          midi_key_info_t* pKey = &pMIDIKeyInfo[pNoteOnEvent->Key];          midi_key_info_t* pKey = &pMIDIKeyInfo[pNoteOnEvent->Param.Note.Key];
681    
682          // allocate a new voice for the key          // allocate a new voice for the key
683          Voice* pNewVoice = pKey->pActiveVoices->alloc();          Voice* pNewVoice = pKey->pActiveVoices->alloc();
# Line 671  namespace LinuxSampler { namespace gig { Line 706  namespace LinuxSampler { namespace gig {
706                  if (!pKey->Active) { // mark as active key                  if (!pKey->Active) { // mark as active key
707                      pKey->Active = true;                      pKey->Active = true;
708                      pKey->pSelf  = pActiveKeys->alloc();                      pKey->pSelf  = pActiveKeys->alloc();
709                      *pKey->pSelf = pNoteOnEvent->Key;                      *pKey->pSelf = pNoteOnEvent->Param.Note.Key;
710                  }                  }
711                  if (pNewVoice->KeyGroup) {                  if (pNewVoice->KeyGroup) {
712                      *ppKeyGroup = pKey->pSelf; // put key as the (new) active key to its key group                      *ppKeyGroup = pKey->pSelf; // put key as the (new) active key to its key group
713                  }                  }
714                  if (pNewVoice->Type == Voice::type_release_trigger_required) pKey->ReleaseTrigger = true; // mark key for the need of release triggered voice(s)                  if (pNewVoice->Type == Voice::type_release_trigger_required) pKey->ReleaseTrigger = true; // mark key for the need of release triggered voice(s)
715                    return pNewVoice; // success
716              }              }
717          }          }
718          else std::cerr << "No free voice!" << std::endl << std::flush;          else if (VoiceStealing) StealVoice(pNoteOnEvent, iLayer, ReleaseTriggerVoice); // no free voice left, so steal one
719    
720            return NULL; // no free voice or error
721        }
722    
723        /**
724         *  Will be called by LaunchVoice() method in case there are no free
725         *  voices left. This method will select and kill one old voice for
726         *  voice stealing and postpone the note-on event until the selected
727         *  voice actually died.
728         *
729         *  @param pNoteOnEvent        - key, velocity and time stamp of the event
730         *  @param iLayer              - layer index for the new voice
731         *  @param ReleaseTriggerVoice - if new voice is a release triggered voice
732         */
733        void Engine::StealVoice(Event* pNoteOnEvent, int iLayer, bool ReleaseTriggerVoice) {
734            if (!pEventPool->pool_is_empty()) {
735    
736                uint*  puiOldestKey;
737                Voice* pOldestVoice;
738    
739                // Select one voice for voice stealing
740                switch (VOICE_STEAL_ALGORITHM) {
741    
742                    // try to pick the oldest voice on the key where the new
743                    // voice should be spawned, if there is no voice on that
744                    // key, or no voice left to kill there, then procceed with
745                    // 'oldestkey' algorithm
746                    case voice_steal_algo_keymask: {
747                        midi_key_info_t* pOldestKey = &pMIDIKeyInfo[pNoteOnEvent->Param.Note.Key];
748                        if (pLastStolenVoice) {
749                            pOldestKey->pActiveVoices->set_current(pLastStolenVoice);
750                            pOldestVoice = pOldestKey->pActiveVoices->next();
751                        }
752                        else { // no voice stolen in this audio fragment cycle yet
753                            pOldestVoice = pOldestKey->pActiveVoices->first();
754                        }
755                        if (pOldestVoice) {
756                            puiOldestKey = pOldestKey->pSelf;
757                            break; // selection succeeded
758                        }
759                    } // no break - intentional !
760    
761                    // try to pick the oldest voice on the oldest active key
762                    // (caution: must stay after 'keymask' algorithm !)
763                    case voice_steal_algo_oldestkey: {
764                        if (pLastStolenVoice) {
765                            midi_key_info_t* pOldestKey = &pMIDIKeyInfo[*puiLastStolenKey];
766                            pOldestKey->pActiveVoices->set_current(pLastStolenVoice);
767                            pOldestVoice = pOldestKey->pActiveVoices->next();
768                            if (!pOldestVoice) {
769                                pActiveKeys->set_current(puiLastStolenKey);
770                                puiOldestKey = pActiveKeys->next();
771                                if (puiOldestKey) {
772                                    midi_key_info_t* pOldestKey = &pMIDIKeyInfo[*puiOldestKey];
773                                    pOldestVoice = pOldestKey->pActiveVoices->first();
774                                }
775                                else { // too less voices, even for voice stealing
776                                    dmsg(1,("Voice overflow! - You might recompile with higher MAX_AUDIO_VOICES!\n"));
777                                    return;
778                                }
779                            }
780                            else puiOldestKey = puiLastStolenKey;
781                        }
782                        else { // no voice stolen in this audio fragment cycle yet
783                            puiOldestKey = pActiveKeys->first();
784                            midi_key_info_t* pOldestKey = &pMIDIKeyInfo[*puiOldestKey];
785                            pOldestVoice = pOldestKey->pActiveVoices->first();
786                        }
787                        break;
788                    }
789    
790                    // don't steal anything
791                    case voice_steal_algo_none:
792                    default: {
793                        dmsg(1,("No free voice (voice stealing disabled)!\n"));
794                        return;
795                    }
796                }
797    
798                // now kill the selected voice
799                pOldestVoice->Kill(pNoteOnEvent);
800                // remember which voice on which key we stole, so we can simply proceed for the next voice stealing
801                this->pLastStolenVoice = pOldestVoice;
802                this->puiLastStolenKey = puiOldestKey;
803                // put note-on event into voice-stealing queue, so it will be reprocessed after killed voice died
804                Event* pStealEvent = pVoiceStealingQueue->alloc();
805                *pStealEvent = *pNoteOnEvent;
806                pStealEvent->Param.Note.Layer = iLayer;
807                pStealEvent->Param.Note.ReleaseTrigger = ReleaseTriggerVoice;
808            }
809            else dmsg(1,("Event pool emtpy!\n"));
810      }      }
811    
812      /**      /**
# Line 708  namespace LinuxSampler { namespace gig { Line 835  namespace LinuxSampler { namespace gig {
835                  pActiveKeys->free(pKey->pSelf); // remove key from list of active keys                  pActiveKeys->free(pKey->pSelf); // remove key from list of active keys
836                  pKey->pSelf = NULL;                  pKey->pSelf = NULL;
837                  pKey->ReleaseTrigger = false;                  pKey->ReleaseTrigger = false;
838                    pKey->pEvents->clear();
839                  dmsg(3,("Key has no more voices now\n"));                  dmsg(3,("Key has no more voices now\n"));
840              }              }
841          }          }
# Line 721  namespace LinuxSampler { namespace gig { Line 849  namespace LinuxSampler { namespace gig {
849       *  @param pControlChangeEvent - controller, value and time stamp of the event       *  @param pControlChangeEvent - controller, value and time stamp of the event
850       */       */
851      void Engine::ProcessControlChange(Event* pControlChangeEvent) {      void Engine::ProcessControlChange(Event* pControlChangeEvent) {
852          dmsg(4,("Engine::ContinuousController cc=%d v=%d\n", pControlChangeEvent->Controller, pControlChangeEvent->Value));          dmsg(4,("Engine::ContinuousController cc=%d v=%d\n", pControlChangeEvent->Param.CC.Controller, pControlChangeEvent->Param.CC.Value));
853    
854          switch (pControlChangeEvent->Controller) {          switch (pControlChangeEvent->Param.CC.Controller) {
855              case 64: {              case 64: {
856                  if (pControlChangeEvent->Value >= 64 && !SustainPedal) {                  if (pControlChangeEvent->Param.CC.Value >= 64 && !SustainPedal) {
857                      dmsg(4,("PEDAL DOWN\n"));                      dmsg(4,("PEDAL DOWN\n"));
858                      SustainPedal = true;                      SustainPedal = true;
859    
# Line 745  namespace LinuxSampler { namespace gig { Line 873  namespace LinuxSampler { namespace gig {
873                          }                          }
874                      }                      }
875                  }                  }
876                  if (pControlChangeEvent->Value < 64 && SustainPedal) {                  if (pControlChangeEvent->Param.CC.Value < 64 && SustainPedal) {
877                      dmsg(4,("PEDAL UP\n"));                      dmsg(4,("PEDAL UP\n"));
878                      SustainPedal = false;                      SustainPedal = false;
879    
# Line 770  namespace LinuxSampler { namespace gig { Line 898  namespace LinuxSampler { namespace gig {
898          }          }
899    
900          // update controller value in the engine's controller table          // update controller value in the engine's controller table
901          ControllerTable[pControlChangeEvent->Controller] = pControlChangeEvent->Value;          ControllerTable[pControlChangeEvent->Param.CC.Controller] = pControlChangeEvent->Param.CC.Value;
902    
903          // move event from the unsorted event list to the control change event list          // move event from the unsorted event list to the control change event list
904          pEvents->move(pControlChangeEvent, pCCEvents);          pEvents->move(pControlChangeEvent, pCCEvents);
# Line 829  namespace LinuxSampler { namespace gig { Line 957  namespace LinuxSampler { namespace gig {
957          }          }
958    
959          free_sysex_data: // finally free sysex data          free_sysex_data: // finally free sysex data
960          pSysexBuffer->increment_read_ptr(pSysexEvent->Size);          pSysexBuffer->increment_read_ptr(pSysexEvent->Param.Sysex.Size);
961      }      }
962    
963      /**      /**
# Line 963  namespace LinuxSampler { namespace gig { Line 1091  namespace LinuxSampler { namespace gig {
1091      }      }
1092    
1093      String Engine::Version() {      String Engine::Version() {
1094          String s = "$Revision: 1.12 $";          String s = "$Revision: 1.14 $";
1095          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
1096      }      }
1097    
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