/[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 466 by schoenebeck, Tue Mar 15 19:27:01 2005 UTC revision 497 by persson, Sun Apr 10 11:55:44 2005 UTC
# Line 96  namespace LinuxSampler { namespace gig { Line 96  namespace LinuxSampler { namespace gig {
96          else dmsg(4,("This gig::Engine has now %d EngineChannels.\n",pEngine->engineChannels.size()));          else dmsg(4,("This gig::Engine has now %d EngineChannels.\n",pEngine->engineChannels.size()));
97      }      }
98    
99        /**
100         * Constructor
101         */
102      Engine::Engine() {      Engine::Engine() {
103          pAudioOutputDevice = NULL;          pAudioOutputDevice = NULL;
104          pDiskThread        = NULL;          pDiskThread        = NULL;
# Line 118  namespace LinuxSampler { namespace gig { Line 121  namespace LinuxSampler { namespace gig {
121          ResetInternal();          ResetInternal();
122      }      }
123    
124        /**
125         * Destructor
126         */
127      Engine::~Engine() {      Engine::~Engine() {
128          if (pDiskThread) {          if (pDiskThread) {
129              dmsg(1,("Stopping disk thread..."));              dmsg(1,("Stopping disk thread..."));
# Line 198  namespace LinuxSampler { namespace gig { Line 204  namespace LinuxSampler { namespace gig {
204          pEventQueue->init();          pEventQueue->init();
205      }      }
206    
207        /**
208         * Connect this engine instance with the given audio output device.
209         * This method will be called when an Engine instance is created.
210         * All of the engine's data structures which are dependant to the used
211         * audio output device / driver will be (re)allocated and / or
212         * adjusted appropriately.
213         *
214         * @param pAudioOut - audio output device to connect to
215         */
216      void Engine::Connect(AudioOutputDevice* pAudioOut) {      void Engine::Connect(AudioOutputDevice* pAudioOut) {
217          pAudioOutputDevice = pAudioOut;          pAudioOutputDevice = pAudioOut;
218    
# Line 272  namespace LinuxSampler { namespace gig { Line 287  namespace LinuxSampler { namespace gig {
287          }          }
288      }      }
289    
290        /**
291         * Clear all engine global event lists.
292         */
293      void Engine::ClearEventLists() {      void Engine::ClearEventLists() {
294          pGlobalEvents->clear();          pGlobalEvents->clear();
295      }      }
# Line 399  namespace LinuxSampler { namespace gig { Line 417  namespace LinuxSampler { namespace gig {
417          return 0;          return 0;
418      }      }
419    
420        /**
421         * Dispatch and handle all events in this audio fragment for the given
422         * engine channel.
423         *
424         * @param pEngineChannel - engine channel on which events should be
425         *                         processed
426         * @param Samples        - amount of sample points to be processed in
427         *                         this audio fragment cycle
428         */
429      void Engine::ProcessEvents(EngineChannel* pEngineChannel, uint Samples) {      void Engine::ProcessEvents(EngineChannel* pEngineChannel, uint Samples) {
430          // get all events from the engine channels's input event queue which belong to the current fragment          // get all events from the engine channels's input event queue which belong to the current fragment
431          // (these are the common events like NoteOn, NoteOff, ControlChange, etc.)          // (these are the common events like NoteOn, NoteOff, ControlChange, etc.)
# Line 431  namespace LinuxSampler { namespace gig { Line 458  namespace LinuxSampler { namespace gig {
458          }          }
459      }      }
460    
461        /**
462         * Render all 'normal' voices (that is voices which were not stolen in
463         * this fragment) on the given engine channel.
464         *
465         * @param pEngineChannel - engine channel on which audio should be
466         *                         rendered
467         * @param Samples        - amount of sample points to be rendered in
468         *                         this audio fragment cycle
469         */
470      void Engine::RenderActiveVoices(EngineChannel* pEngineChannel, uint Samples) {      void Engine::RenderActiveVoices(EngineChannel* pEngineChannel, uint Samples) {
471          RTList<uint>::Iterator iuiKey = pEngineChannel->pActiveKeys->first();          RTList<uint>::Iterator iuiKey = pEngineChannel->pActiveKeys->first();
472          RTList<uint>::Iterator end    = pEngineChannel->pActiveKeys->end();          RTList<uint>::Iterator end    = pEngineChannel->pActiveKeys->end();
# Line 451  namespace LinuxSampler { namespace gig { Line 487  namespace LinuxSampler { namespace gig {
487          }          }
488      }      }
489    
490        /**
491         * Render all stolen voices (only voices which were stolen in this
492         * fragment) on the given engine channel. Stolen voices are rendered
493         * after all normal voices have been rendered; this is needed to render
494         * audio of those voices which were selected for voice stealing until
495         * the point were the stealing (that is the take over of the voice)
496         * actually happened.
497         *
498         * @param pEngineChannel - engine channel on which audio should be
499         *                         rendered
500         * @param Samples        - amount of sample points to be rendered in
501         *                         this audio fragment cycle
502         */
503      void Engine::RenderStolenVoices(uint Samples) {      void Engine::RenderStolenVoices(uint Samples) {
504          RTList<Event>::Iterator itVoiceStealEvent = pVoiceStealingQueue->first();          RTList<Event>::Iterator itVoiceStealEvent = pVoiceStealingQueue->first();
505          RTList<Event>::Iterator end               = pVoiceStealingQueue->end();          RTList<Event>::Iterator end               = pVoiceStealingQueue->end();
# Line 466  namespace LinuxSampler { namespace gig { Line 515  namespace LinuxSampler { namespace gig {
515                  }                  }
516              }              }
517              else dmsg(1,("gig::Engine: ERROR, voice stealing didn't work out!\n"));              else dmsg(1,("gig::Engine: ERROR, voice stealing didn't work out!\n"));
518    
519                // we need to clear the key's event list explicitly here in case key was never active
520                midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[itVoiceStealEvent->Param.Note.Key];
521                pKey->VoiceTheftsQueued--;
522                if (!pKey->Active && !pKey->VoiceTheftsQueued) pKey->pEvents->clear();
523          }          }
524      }      }
525    
526        /**
527         * Free all keys which have turned inactive in this audio fragment, from
528         * the list of active keys and clear all event lists on that engine
529         * channel.
530         *
531         * @param pEngineChannel - engine channel to cleanup
532         */
533      void Engine::PostProcess(EngineChannel* pEngineChannel) {      void Engine::PostProcess(EngineChannel* pEngineChannel) {
534          // free all keys which have no active voices left          // free all keys which have no active voices left
535          {          {
# Line 575  namespace LinuxSampler { namespace gig { Line 636  namespace LinuxSampler { namespace gig {
636              }              }
637          }          }
638    
639            // if neither a voice was spawned or postponed then remove note on event from key again
640            if (!pKey->Active && !pKey->VoiceTheftsQueued)
641                pKey->pEvents->free(itNoteOnEventOnKeyList);
642    
643          pKey->RoundRobinIndex++;          pKey->RoundRobinIndex++;
644      }      }
645    
# Line 595  namespace LinuxSampler { namespace gig { Line 660  namespace LinuxSampler { namespace gig {
660          // release voices on this key if needed          // release voices on this key if needed
661          if (pKey->Active && !pEngineChannel->SustainPedal) {          if (pKey->Active && !pEngineChannel->SustainPedal) {
662              itNoteOffEvent->Type = Event::type_release; // transform event type              itNoteOffEvent->Type = Event::type_release; // transform event type
         }  
663    
664          // move event to the key's own event list              // move event to the key's own event list
665          RTList<Event>::Iterator itNoteOffEventOnKeyList = itNoteOffEvent.moveToEndOf(pKey->pEvents);              RTList<Event>::Iterator itNoteOffEventOnKeyList = itNoteOffEvent.moveToEndOf(pKey->pEvents);
666    
667          // spawn release triggered voice(s) if needed              // spawn release triggered voice(s) if needed
668          if (pKey->ReleaseTrigger) {              if (pKey->ReleaseTrigger) {
669              // first, get total amount of required voices (dependant on amount of layers)                  // first, get total amount of required voices (dependant on amount of layers)
670              ::gig::Region* pRegion = pEngineChannel->pInstrument->GetRegion(itNoteOffEventOnKeyList->Param.Note.Key);                  ::gig::Region* pRegion = pEngineChannel->pInstrument->GetRegion(itNoteOffEventOnKeyList->Param.Note.Key);
671              if (pRegion) {                  if (pRegion) {
672                  int voicesRequired = pRegion->Layers;                      int voicesRequired = pRegion->Layers;
673                  // now launch the required amount of voices                      // now launch the required amount of voices
674                  for (int i = 0; i < voicesRequired; i++)                      for (int i = 0; i < voicesRequired; i++)
675                      LaunchVoice(pEngineChannel, itNoteOffEventOnKeyList, i, true, false); //FIXME: for the moment we don't perform voice stealing for release triggered samples                          LaunchVoice(pEngineChannel, itNoteOffEventOnKeyList, i, true, false); //FIXME: for the moment we don't perform voice stealing for release triggered samples
676                    }
677                    pKey->ReleaseTrigger = false;
678              }              }
679              pKey->ReleaseTrigger = false;  
680                // if neither a voice was spawned or postponed then remove note off event from key again
681                if (!pKey->Active && !pKey->VoiceTheftsQueued)
682                    pKey->pEvents->free(itNoteOffEventOnKeyList);
683          }          }
684      }      }
685    
# Line 682  namespace LinuxSampler { namespace gig { Line 751  namespace LinuxSampler { namespace gig {
751              }              }
752          }          }
753          else if (VoiceStealing) {          else if (VoiceStealing) {
   
754              // try to steal one voice              // try to steal one voice
755              StealVoice(pEngineChannel, itNoteOnEvent);              int result = StealVoice(pEngineChannel, itNoteOnEvent);
756                if (!result) { // voice stolen successfully
757              // put note-on event into voice-stealing queue, so it will be reprocessed after killed voice died                  // put note-on event into voice-stealing queue, so it will be reprocessed after killed voice died
758              RTList<Event>::Iterator itStealEvent = pVoiceStealingQueue->allocAppend();                  RTList<Event>::Iterator itStealEvent = pVoiceStealingQueue->allocAppend();
759              if (itStealEvent) {                  if (itStealEvent) {
760                  *itStealEvent = *itNoteOnEvent; // copy event                      *itStealEvent = *itNoteOnEvent; // copy event
761                  itStealEvent->Param.Note.Layer = iLayer;                      itStealEvent->Param.Note.Layer = iLayer;
762                  itStealEvent->Param.Note.ReleaseTrigger = ReleaseTriggerVoice;                      itStealEvent->Param.Note.ReleaseTrigger = ReleaseTriggerVoice;
763                        pKey->VoiceTheftsQueued++;
764                    }
765                    else dmsg(1,("Voice stealing queue full!\n"));
766              }              }
             else dmsg(1,("Voice stealing queue full!\n"));  
767          }          }
768    
769          return Pool<Voice>::Iterator(); // no free voice or error          return Pool<Voice>::Iterator(); // no free voice or error
# Line 707  namespace LinuxSampler { namespace gig { Line 777  namespace LinuxSampler { namespace gig {
777       *       *
778       *  @param pEngineChannel - engine channel on which this event occured on       *  @param pEngineChannel - engine channel on which this event occured on
779       *  @param itNoteOnEvent - key, velocity and time stamp of the event       *  @param itNoteOnEvent - key, velocity and time stamp of the event
780         *  @returns 0 on success, a value < 0 if no active voice could be picked for voice stealing
781       */       */
782      void Engine::StealVoice(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itNoteOnEvent) {      int Engine::StealVoice(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itNoteOnEvent) {
783          if (!VoiceTheftsLeft) {          if (!VoiceTheftsLeft) {
784              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 MAX_AUDIO_VOICES).\n"));
785              return;              return -1;
786          }          }
787          if (!pEventPool->poolIsEmpty()) {          if (!pEventPool->poolIsEmpty()) {
788    
# Line 764  namespace LinuxSampler { namespace gig { Line 835  namespace LinuxSampler { namespace gig {
835                  case voice_steal_algo_none:                  case voice_steal_algo_none:
836                  default: {                  default: {
837                      dmsg(1,("No free voice (voice stealing disabled)!\n"));                      dmsg(1,("No free voice (voice stealing disabled)!\n"));
838                      return;                      return -1;
839                  }                  }
840              }              }
841    
# Line 787  namespace LinuxSampler { namespace gig { Line 858  namespace LinuxSampler { namespace gig {
858              }              }
859    
860              //FIXME: can be removed, just a sanity check for debugging              //FIXME: can be removed, just a sanity check for debugging
861              if (!itSelectedVoice->IsActive()) dmsg(1,("gig::Engine: ERROR, tried to steal a voice which was not active !!!\n"));              if (!itSelectedVoice->IsActive()) {
862                    dmsg(1,("gig::Engine: ERROR, tried to steal a voice which was not active !!!\n"));
863                    return -1;
864                }
865    
866              // now kill the selected voice              // now kill the selected voice
867              itSelectedVoice->Kill(itNoteOnEvent);              itSelectedVoice->Kill(itNoteOnEvent);
# Line 796  namespace LinuxSampler { namespace gig { Line 870  namespace LinuxSampler { namespace gig {
870              itLastStolenVoice = itSelectedVoice;              itLastStolenVoice = itSelectedVoice;
871    
872              --VoiceTheftsLeft;              --VoiceTheftsLeft;
873    
874                return 0; // success
875            }
876            else {
877                dmsg(1,("Event pool emtpy!\n"));
878                return -1;
879          }          }
         else dmsg(1,("Event pool emtpy!\n"));  
880      }      }
881    
882      /**      /**
# Line 856  namespace LinuxSampler { namespace gig { Line 935  namespace LinuxSampler { namespace gig {
935      void Engine::ProcessControlChange(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itControlChangeEvent) {      void Engine::ProcessControlChange(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itControlChangeEvent) {
936          dmsg(4,("Engine::ContinuousController cc=%d v=%d\n", itControlChangeEvent->Param.CC.Controller, itControlChangeEvent->Param.CC.Value));          dmsg(4,("Engine::ContinuousController cc=%d v=%d\n", itControlChangeEvent->Param.CC.Controller, itControlChangeEvent->Param.CC.Value));
937    
938          switch (itControlChangeEvent->Param.CC.Controller) {          // update controller value in the engine channel's controller table
939            pEngineChannel->ControllerTable[itControlChangeEvent->Param.CC.Controller] = itControlChangeEvent->Param.CC.Value;
940    
941            // move event from the unsorted event list to the control change event list
942            Pool<Event>::Iterator itControlChangeEventOnCCList = itControlChangeEvent.moveToEndOf(pEngineChannel->pCCEvents);
943    
944            switch (itControlChangeEventOnCCList->Param.CC.Controller) {
945              case 7: { // volume              case 7: { // volume
946                  //TODO: not sample accurate yet                  //TODO: not sample accurate yet
947                  pEngineChannel->GlobalVolume = (float) itControlChangeEvent->Param.CC.Value / 127.0f;                  pEngineChannel->GlobalVolume = (float) itControlChangeEventOnCCList->Param.CC.Value / 127.0f;
948                  break;                  break;
949              }              }
950              case 10: { // panpot              case 10: { // panpot
951                  //TODO: not sample accurate yet                  //TODO: not sample accurate yet
952                  const int pan = (int) itControlChangeEvent->Param.CC.Value - 64;                  const int pan = (int) itControlChangeEventOnCCList->Param.CC.Value - 64;
953                  pEngineChannel->GlobalPanLeft  = 1.0f - float(RTMath::Max(pan, 0)) /  63.0f;                  pEngineChannel->GlobalPanLeft  = 1.0f - float(RTMath::Max(pan, 0)) /  63.0f;
954                  pEngineChannel->GlobalPanRight = 1.0f - float(RTMath::Min(pan, 0)) / -64.0f;                  pEngineChannel->GlobalPanRight = 1.0f - float(RTMath::Min(pan, 0)) / -64.0f;
955                  break;                  break;
956              }              }
957              case 64: { // sustain              case 64: { // sustain
958                  if (itControlChangeEvent->Param.CC.Value >= 64 && !pEngineChannel->SustainPedal) {                  if (itControlChangeEventOnCCList->Param.CC.Value >= 64 && !pEngineChannel->SustainPedal) {
959                      dmsg(4,("PEDAL DOWN\n"));                      dmsg(4,("PEDAL DOWN\n"));
960                      pEngineChannel->SustainPedal = true;                      pEngineChannel->SustainPedal = true;
961    
962                      // cancel release process of voices if necessary                      // cancel release process of voices if necessary
963                      RTList<uint>::Iterator iuiKey = pEngineChannel->pActiveKeys->first();                      RTList<uint>::Iterator iuiKey = pEngineChannel->pActiveKeys->first();
964                      if (iuiKey) {                      for (; iuiKey; ++iuiKey) {
965                          itControlChangeEvent->Type = Event::type_cancel_release; // transform event type                          midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[*iuiKey];
966                          while (iuiKey) {                          if (!pKey->KeyPressed) {
967                              midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[*iuiKey];                              RTList<Event>::Iterator itNewEvent = pKey->pEvents->allocAppend();
968                              ++iuiKey;                              if (itNewEvent) {
969                              if (!pKey->KeyPressed) {                                  *itNewEvent = *itControlChangeEventOnCCList; // copy event to the key's own event list
970                                  RTList<Event>::Iterator itNewEvent = pKey->pEvents->allocAppend();                                  itNewEvent->Type = Event::type_cancel_release; // transform event type
                                 if (itNewEvent) *itNewEvent = *itControlChangeEvent; // copy event to the key's own event list  
                                 else dmsg(1,("Event pool emtpy!\n"));  
971                              }                              }
972                                else dmsg(1,("Event pool emtpy!\n"));
973                          }                          }
974                      }                      }
975                  }                  }
976                  if (itControlChangeEvent->Param.CC.Value < 64 && pEngineChannel->SustainPedal) {                  if (itControlChangeEventOnCCList->Param.CC.Value < 64 && pEngineChannel->SustainPedal) {
977                      dmsg(4,("PEDAL UP\n"));                      dmsg(4,("PEDAL UP\n"));
978                      pEngineChannel->SustainPedal = false;                      pEngineChannel->SustainPedal = false;
979    
980                      // release voices if their respective key is not pressed                      // release voices if their respective key is not pressed
981                      RTList<uint>::Iterator iuiKey = pEngineChannel->pActiveKeys->first();                      RTList<uint>::Iterator iuiKey = pEngineChannel->pActiveKeys->first();
982                      if (iuiKey) {                      for (; iuiKey; ++iuiKey) {
983                          itControlChangeEvent->Type = Event::type_release; // transform event type                          midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[*iuiKey];
984                          while (iuiKey) {                          if (!pKey->KeyPressed) {
985                              midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[*iuiKey];                              RTList<Event>::Iterator itNewEvent = pKey->pEvents->allocAppend();
986                              ++iuiKey;                              if (itNewEvent) {
987                              if (!pKey->KeyPressed) {                                  *itNewEvent = *itControlChangeEventOnCCList; // copy event to the key's own event list
988                                  RTList<Event>::Iterator itNewEvent = pKey->pEvents->allocAppend();                                  itNewEvent->Type = Event::type_release; // transform event type
                                 if (itNewEvent) *itNewEvent = *itControlChangeEvent; // copy event to the key's own event list  
                                 else dmsg(1,("Event pool emtpy!\n"));  
989                              }                              }
990                                else dmsg(1,("Event pool emtpy!\n"));
991                          }                          }
992                      }                      }
993                  }                  }
994                  break;                  break;
995              }              }
         }  
996    
         // update controller value in the engine's controller table  
         pEngineChannel->ControllerTable[itControlChangeEvent->Param.CC.Controller] = itControlChangeEvent->Param.CC.Value;  
997    
998          // move event from the unsorted event list to the control change event list              // Channel Mode Messages
999          itControlChangeEvent.moveToEndOf(pEngineChannel->pCCEvents);  
1000                case 120: { // all sound off
1001                    KillAllVoices(pEngineChannel, itControlChangeEventOnCCList);
1002                    break;
1003                }
1004                case 121: { // reset all controllers
1005                    pEngineChannel->ResetControllers();
1006                    break;
1007                }
1008                case 123: { // all notes off
1009                    ReleaseAllVoices(pEngineChannel, itControlChangeEventOnCCList);
1010                    break;
1011                }
1012            }
1013      }      }
1014    
1015      /**      /**
# Line 934  namespace LinuxSampler { namespace gig { Line 1027  namespace LinuxSampler { namespace gig {
1027    
1028          switch (id) {          switch (id) {
1029              case 0x41: { // Roland              case 0x41: { // Roland
1030                    dmsg(3,("Roland Sysex\n"));
1031                  uint8_t device_id, model_id, cmd_id;                  uint8_t device_id, model_id, cmd_id;
1032                  if (!reader.pop(&device_id)) goto free_sysex_data;                  if (!reader.pop(&device_id)) goto free_sysex_data;
1033                  if (!reader.pop(&model_id))  goto free_sysex_data;                  if (!reader.pop(&model_id))  goto free_sysex_data;
# Line 946  namespace LinuxSampler { namespace gig { Line 1040  namespace LinuxSampler { namespace gig {
1040                  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
1041                  if (reader.read(&addr[0], 3) != 3) goto free_sysex_data;                  if (reader.read(&addr[0], 3) != 3) goto free_sysex_data;
1042                  if (addr[0] == 0x40 && addr[1] == 0x00) { // System Parameters                  if (addr[0] == 0x40 && addr[1] == 0x00) { // System Parameters
1043                        dmsg(3,("\tSystem Parameter\n"));
1044                  }                  }
1045                  else if (addr[0] == 0x40 && addr[1] == 0x01) { // Common Parameters                  else if (addr[0] == 0x40 && addr[1] == 0x01) { // Common Parameters
1046                        dmsg(3,("\tCommon Parameter\n"));
1047                  }                  }
1048                  else if (addr[0] == 0x40 && (addr[1] & 0xf0) == 0x10) { // Part Parameters (1)                  else if (addr[0] == 0x40 && (addr[1] & 0xf0) == 0x10) { // Part Parameters (1)
1049                      switch (addr[3]) {                      dmsg(3,("\tPart Parameter\n"));
1050                        switch (addr[2]) {
1051                          case 0x40: { // scale tuning                          case 0x40: { // scale tuning
1052                                dmsg(3,("\t\tScale Tuning\n"));
1053                              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
1054                              if (reader.read(&scale_tunes[0], 12) != 12) goto free_sysex_data;                              if (reader.read(&scale_tunes[0], 12) != 12) goto free_sysex_data;
1055                              uint8_t checksum;                              uint8_t checksum;
1056                              if (!reader.pop(&checksum))                      goto free_sysex_data;                              if (!reader.pop(&checksum)) goto free_sysex_data;
1057                              if (GSCheckSum(checksum_reader, 12) != checksum) goto free_sysex_data;                              // some are not sending a GS checksum, so we ignore it for now
1058                                //if (GSCheckSum(checksum_reader, 12)) goto free_sysex_data;
1059                              for (int i = 0; i < 12; i++) scale_tunes[i] -= 64;                              for (int i = 0; i < 12; i++) scale_tunes[i] -= 64;
1060                              AdjustScale((int8_t*) scale_tunes);                              AdjustScale((int8_t*) scale_tunes);
1061                                dmsg(3,("\t\t\tNew scale applied.\n"));
1062                              break;                              break;
1063                          }                          }
1064                      }                      }
# Line 1003  namespace LinuxSampler { namespace gig { Line 1103  namespace LinuxSampler { namespace gig {
1103      }      }
1104    
1105      /**      /**
1106         * Releases all voices on an engine channel. All voices will go into
1107         * the release stage and thus it might take some time (e.g. dependant to
1108         * their envelope release time) until they actually die.
1109         *
1110         * @param pEngineChannel - engine channel on which all voices should be released
1111         * @param itReleaseEvent - event which caused this releasing of all voices
1112         */
1113        void Engine::ReleaseAllVoices(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itReleaseEvent) {
1114            RTList<uint>::Iterator iuiKey = pEngineChannel->pActiveKeys->first();
1115            while (iuiKey) {
1116                midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[*iuiKey];
1117                ++iuiKey;
1118                // append a 'release' event to the key's own event list
1119                RTList<Event>::Iterator itNewEvent = pKey->pEvents->allocAppend();
1120                if (itNewEvent) {
1121                    *itNewEvent = *itReleaseEvent; // copy original event (to the key's event list)
1122                    itNewEvent->Type = Event::type_release; // transform event type
1123                }
1124                else dmsg(1,("Event pool emtpy!\n"));
1125            }
1126        }
1127    
1128        /**
1129         * Kills all voices on an engine channel as soon as possible. Voices
1130         * won't get into release state, their volume level will be ramped down
1131         * as fast as possible.
1132         *
1133         * @param pEngineChannel - engine channel on which all voices should be killed
1134         * @param itKillEvent    - event which caused this killing of all voices
1135         */
1136        void Engine::KillAllVoices(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itKillEvent) {
1137            RTList<uint>::Iterator iuiKey = pEngineChannel->pActiveKeys->first();
1138            RTList<uint>::Iterator end    = pEngineChannel->pActiveKeys->end();
1139            while (iuiKey != end) { // iterate through all active keys
1140                midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[*iuiKey];
1141                ++iuiKey;
1142                RTList<Voice>::Iterator itVoice     = pKey->pActiveVoices->first();
1143                RTList<Voice>::Iterator itVoicesEnd = pKey->pActiveVoices->end();
1144                for (; itVoice != itVoicesEnd; ++itVoice) { // iterate through all voices on this key
1145                    itVoice->Kill(itKillEvent);
1146                }
1147            }
1148        }
1149    
1150        /**
1151       * Initialize the parameter sequence for the modulation destination given by       * Initialize the parameter sequence for the modulation destination given by
1152       * by 'dst' with the constant value given by val.       * by 'dst' with the constant value given by val.
1153       */       */
# Line 1046  namespace LinuxSampler { namespace gig { Line 1191  namespace LinuxSampler { namespace gig {
1191      }      }
1192    
1193      String Engine::EngineName() {      String Engine::EngineName() {
1194          return "GigEngine";          return LS_GIG_ENGINE_NAME;
1195      }      }
1196    
1197      String Engine::Description() {      String Engine::Description() {
# Line 1054  namespace LinuxSampler { namespace gig { Line 1199  namespace LinuxSampler { namespace gig {
1199      }      }
1200    
1201      String Engine::Version() {      String Engine::Version() {
1202          String s = "$Revision: 1.32 $";          String s = "$Revision: 1.36 $";
1203          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
1204      }      }
1205    
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