/[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 716 by iliev, Sun Jul 24 06:57:30 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;
105          pEventGenerator    = NULL;          pEventGenerator    = NULL;
106          pSysexBuffer       = new RingBuffer<uint8_t>(SYSEX_BUFFER_SIZE, 0);          pSysexBuffer       = new RingBuffer<uint8_t>(CONFIG_SYSEX_BUFFER_SIZE, 0);
107          pEventQueue        = new RingBuffer<Event>(MAX_EVENTS_PER_FRAGMENT, 0);          pEventQueue        = new RingBuffer<Event>(CONFIG_MAX_EVENTS_PER_FRAGMENT, 0);
108          pEventPool         = new Pool<Event>(MAX_EVENTS_PER_FRAGMENT);          pEventPool         = new Pool<Event>(CONFIG_MAX_EVENTS_PER_FRAGMENT);
109          pVoicePool         = new Pool<Voice>(MAX_AUDIO_VOICES);          pVoicePool         = new Pool<Voice>(CONFIG_MAX_VOICES);
110          pVoiceStealingQueue = new RTList<Event>(pEventPool);          pVoiceStealingQueue = new RTList<Event>(pEventPool);
111          pGlobalEvents      = new RTList<Event>(pEventPool);          pGlobalEvents      = new RTList<Event>(pEventPool);
112          for (RTList<Voice>::Iterator iterVoice = pVoicePool->allocAppend(); iterVoice == pVoicePool->last(); iterVoice = pVoicePool->allocAppend()) {          for (RTList<Voice>::Iterator iterVoice = pVoicePool->allocAppend(); iterVoice == pVoicePool->last(); iterVoice = pVoicePool->allocAppend()) {
# Line 116  namespace LinuxSampler { namespace gig { Line 119  namespace LinuxSampler { namespace gig {
119          pMainFilterParameters   = NULL;          pMainFilterParameters   = NULL;
120    
121          ResetInternal();          ResetInternal();
122            ResetScaleTuning();
123      }      }
124    
125        /**
126         * Destructor
127         */
128      Engine::~Engine() {      Engine::~Engine() {
129          if (pDiskThread) {          if (pDiskThread) {
130              dmsg(1,("Stopping disk thread..."));              dmsg(1,("Stopping disk thread..."));
# Line 165  namespace LinuxSampler { namespace gig { Line 172  namespace LinuxSampler { namespace gig {
172      void Engine::Reset() {      void Engine::Reset() {
173          DisableAndLock();          DisableAndLock();
174          ResetInternal();          ResetInternal();
175            ResetScaleTuning();
176          Enable();          Enable();
177      }      }
178    
# Line 178  namespace LinuxSampler { namespace gig { Line 186  namespace LinuxSampler { namespace gig {
186    
187          // reset voice stealing parameters          // reset voice stealing parameters
188          pVoiceStealingQueue->clear();          pVoiceStealingQueue->clear();
189          itLastStolenVoice  = RTList<Voice>::Iterator();          itLastStolenVoice          = RTList<Voice>::Iterator();
190          iuiLastStolenKey   = RTList<uint>::Iterator();          itLastStolenVoiceGlobally  = RTList<Voice>::Iterator();
191          pLastStolenChannel = NULL;          iuiLastStolenKey           = RTList<uint>::Iterator();
192            iuiLastStolenKeyGlobally   = RTList<uint>::Iterator();
193          // reset to normal chromatic scale (means equal temper)          pLastStolenChannel         = NULL;
         memset(&ScaleTuning[0], 0x00, 12);  
194    
195          // reset all voices          // reset all voices
196          for (RTList<Voice>::Iterator iterVoice = pVoicePool->allocAppend(); iterVoice == pVoicePool->last(); iterVoice = pVoicePool->allocAppend()) {          for (RTList<Voice>::Iterator iterVoice = pVoicePool->allocAppend(); iterVoice == pVoicePool->last(); iterVoice = pVoicePool->allocAppend()) {
# Line 198  namespace LinuxSampler { namespace gig { Line 205  namespace LinuxSampler { namespace gig {
205          pEventQueue->init();          pEventQueue->init();
206      }      }
207    
208        /**
209         * Reset to normal, chromatic scale (means equal tempered).
210         */
211        void Engine::ResetScaleTuning() {
212            memset(&ScaleTuning[0], 0x00, 12);
213        }
214    
215        /**
216         * Connect this engine instance with the given audio output device.
217         * This method will be called when an Engine instance is created.
218         * All of the engine's data structures which are dependant to the used
219         * audio output device / driver will be (re)allocated and / or
220         * adjusted appropriately.
221         *
222         * @param pAudioOut - audio output device to connect to
223         */
224      void Engine::Connect(AudioOutputDevice* pAudioOut) {      void Engine::Connect(AudioOutputDevice* pAudioOut) {
225          pAudioOutputDevice = pAudioOut;          pAudioOutputDevice = pAudioOut;
226    
# Line 216  namespace LinuxSampler { namespace gig { Line 239  namespace LinuxSampler { namespace gig {
239          this->SampleRate         = pAudioOutputDevice->SampleRate();          this->SampleRate         = pAudioOutputDevice->SampleRate();
240    
241          // FIXME: audio drivers with varying fragment sizes might be a problem here          // FIXME: audio drivers with varying fragment sizes might be a problem here
242          MaxFadeOutPos = MaxSamplesPerCycle - int(double(SampleRate) * EG_MIN_RELEASE_TIME) - 1;          MaxFadeOutPos = MaxSamplesPerCycle - int(double(SampleRate) * CONFIG_EG_MIN_RELEASE_TIME) - 1;
243          if (MaxFadeOutPos < 0)          if (MaxFadeOutPos < 0) {
244              throw LinuxSamplerException("EG_MIN_RELEASE_TIME in EGADSR.h too big for current audio fragment size / sampling rate!");              std::cerr << "gig::Engine: WARNING, CONFIG_EG_MIN_RELEASE_TIME "
245                          << "too big for current audio fragment size & sampling rate! "
246                          << "May lead to click sounds if voice stealing chimes in!\n" << std::flush;
247                // force volume ramp downs at the beginning of each fragment
248                MaxFadeOutPos = 0;
249                // lower minimum release time
250                const float minReleaseTime = (float) MaxSamplesPerCycle / (float) SampleRate;
251                for (RTList<Voice>::Iterator iterVoice = pVoicePool->allocAppend(); iterVoice == pVoicePool->last(); iterVoice = pVoicePool->allocAppend()) {
252                    iterVoice->pEG1->CalculateFadeOutCoeff(minReleaseTime, SampleRate);
253                }
254                pVoicePool->clear();
255            }
256    
257          // (re)create disk thread          // (re)create disk thread
258          if (this->pDiskThread) {          if (this->pDiskThread) {
# Line 227  namespace LinuxSampler { namespace gig { Line 261  namespace LinuxSampler { namespace gig {
261              delete this->pDiskThread;              delete this->pDiskThread;
262              dmsg(1,("OK\n"));              dmsg(1,("OK\n"));
263          }          }
264          this->pDiskThread = new DiskThread(((pAudioOut->MaxSamplesPerCycle() << MAX_PITCH) << 1) + 6); //FIXME: assuming stereo          this->pDiskThread = new DiskThread(((pAudioOut->MaxSamplesPerCycle() << CONFIG_MAX_PITCH) << 1) + 6); //FIXME: assuming stereo
265          if (!pDiskThread) {          if (!pDiskThread) {
266              dmsg(0,("gig::Engine  new diskthread = NULL\n"));              dmsg(0,("gig::Engine  new diskthread = NULL\n"));
267              exit(EXIT_FAILURE);              exit(EXIT_FAILURE);
# Line 272  namespace LinuxSampler { namespace gig { Line 306  namespace LinuxSampler { namespace gig {
306          }          }
307      }      }
308    
309        /**
310         * Clear all engine global event lists.
311         */
312      void Engine::ClearEventLists() {      void Engine::ClearEventLists() {
313          pGlobalEvents->clear();          pGlobalEvents->clear();
314      }      }
# Line 334  namespace LinuxSampler { namespace gig { Line 371  namespace LinuxSampler { namespace gig {
371          // update time of start and end of this audio fragment (as events' time stamps relate to this)          // update time of start and end of this audio fragment (as events' time stamps relate to this)
372          pEventGenerator->UpdateFragmentTime(Samples);          pEventGenerator->UpdateFragmentTime(Samples);
373    
374            // We only allow a maximum of CONFIG_MAX_VOICES voices to be spawned
375            // in each audio fragment. All subsequent request for spawning new
376            // voices in the same audio fragment will be ignored.
377            VoiceSpawnsLeft = CONFIG_MAX_VOICES;
378    
379          // get all events from the engine's global input event queue which belong to the current fragment          // get all events from the engine's global input event queue which belong to the current fragment
380          // (these are usually just SysEx messages)          // (these are usually just SysEx messages)
381          ImportEvents(Samples);          ImportEvents(Samples);
# Line 352  namespace LinuxSampler { namespace gig { Line 394  namespace LinuxSampler { namespace gig {
394              }              }
395          }          }
396    
         // We only allow a maximum of MAX_AUDIO_VOICES voices to be stolen  
         // in each audio fragment. All subsequent request for spawning new  
         // voices in the same audio fragment will be ignored.  
         VoiceTheftsLeft = MAX_AUDIO_VOICES;  
   
397          // reset internal voice counter (just for statistic of active voices)          // reset internal voice counter (just for statistic of active voices)
398          ActiveVoiceCountTemp = 0;          ActiveVoiceCountTemp = 0;
399    
   
400          // handle events on all engine channels          // handle events on all engine channels
401          for (int i = 0; i < engineChannels.size(); i++) {          for (int i = 0; i < engineChannels.size(); i++) {
402              if (!engineChannels[i]->pInstrument) continue; // ignore if no instrument loaded              if (!engineChannels[i]->pInstrument) continue; // ignore if no instrument loaded
# Line 388  namespace LinuxSampler { namespace gig { Line 424  namespace LinuxSampler { namespace gig {
424    
425          // reset voice stealing for the next audio fragment          // reset voice stealing for the next audio fragment
426          pVoiceStealingQueue->clear();          pVoiceStealingQueue->clear();
         itLastStolenVoice  = RTList<Voice>::Iterator();  
         iuiLastStolenKey   = RTList<uint>::Iterator();  
         pLastStolenChannel = NULL;  
427    
428          // just some statistics about this engine instance          // just some statistics about this engine instance
429          ActiveVoiceCount = ActiveVoiceCountTemp;          ActiveVoiceCount = ActiveVoiceCountTemp;
430          if (ActiveVoiceCount > ActiveVoiceCountMax) ActiveVoiceCountMax = ActiveVoiceCount;          if (ActiveVoiceCount > ActiveVoiceCountMax) ActiveVoiceCountMax = ActiveVoiceCount;
431    
432            FrameTime += Samples;
433    
434          return 0;          return 0;
435      }      }
436    
437        /**
438         * Dispatch and handle all events in this audio fragment for the given
439         * engine channel.
440         *
441         * @param pEngineChannel - engine channel on which events should be
442         *                         processed
443         * @param Samples        - amount of sample points to be processed in
444         *                         this audio fragment cycle
445         */
446      void Engine::ProcessEvents(EngineChannel* pEngineChannel, uint Samples) {      void Engine::ProcessEvents(EngineChannel* pEngineChannel, uint Samples) {
447          // 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
448          // (these are the common events like NoteOn, NoteOff, ControlChange, etc.)          // (these are the common events like NoteOn, NoteOff, ControlChange, etc.)
# Line 429  namespace LinuxSampler { namespace gig { Line 473  namespace LinuxSampler { namespace gig {
473                  }                  }
474              }              }
475          }          }
476    
477            // reset voice stealing for the next engine channel (or next audio fragment)
478            itLastStolenVoice         = RTList<Voice>::Iterator();
479            itLastStolenVoiceGlobally = RTList<Voice>::Iterator();
480            iuiLastStolenKey          = RTList<uint>::Iterator();
481            iuiLastStolenKeyGlobally  = RTList<uint>::Iterator();
482            pLastStolenChannel        = NULL;
483      }      }
484    
485        /**
486         * Render all 'normal' voices (that is voices which were not stolen in
487         * this fragment) on the given engine channel.
488         *
489         * @param pEngineChannel - engine channel on which audio should be
490         *                         rendered
491         * @param Samples        - amount of sample points to be rendered in
492         *                         this audio fragment cycle
493         */
494      void Engine::RenderActiveVoices(EngineChannel* pEngineChannel, uint Samples) {      void Engine::RenderActiveVoices(EngineChannel* pEngineChannel, uint Samples) {
495            #if !CONFIG_PROCESS_MUTED_CHANNELS
496            if (pEngineChannel->GetMute()) return; // skip if sampler channel is muted
497            #endif
498    
499          RTList<uint>::Iterator iuiKey = pEngineChannel->pActiveKeys->first();          RTList<uint>::Iterator iuiKey = pEngineChannel->pActiveKeys->first();
500          RTList<uint>::Iterator end    = pEngineChannel->pActiveKeys->end();          RTList<uint>::Iterator end    = pEngineChannel->pActiveKeys->end();
501          while (iuiKey != end) { // iterate through all active keys          while (iuiKey != end) { // iterate through all active keys
# Line 451  namespace LinuxSampler { namespace gig { Line 515  namespace LinuxSampler { namespace gig {
515          }          }
516      }      }
517    
518        /**
519         * Render all stolen voices (only voices which were stolen in this
520         * fragment) on the given engine channel. Stolen voices are rendered
521         * after all normal voices have been rendered; this is needed to render
522         * audio of those voices which were selected for voice stealing until
523         * the point were the stealing (that is the take over of the voice)
524         * actually happened.
525         *
526         * @param pEngineChannel - engine channel on which audio should be
527         *                         rendered
528         * @param Samples        - amount of sample points to be rendered in
529         *                         this audio fragment cycle
530         */
531      void Engine::RenderStolenVoices(uint Samples) {      void Engine::RenderStolenVoices(uint Samples) {
532          RTList<Event>::Iterator itVoiceStealEvent = pVoiceStealingQueue->first();          RTList<Event>::Iterator itVoiceStealEvent = pVoiceStealingQueue->first();
533          RTList<Event>::Iterator end               = pVoiceStealingQueue->end();          RTList<Event>::Iterator end               = pVoiceStealingQueue->end();
534          for (; itVoiceStealEvent != end; ++itVoiceStealEvent) {          for (; itVoiceStealEvent != end; ++itVoiceStealEvent) {
535              EngineChannel* pEngineChannel = (EngineChannel*) itVoiceStealEvent->pEngineChannel;              EngineChannel* pEngineChannel = (EngineChannel*) itVoiceStealEvent->pEngineChannel;
536              Pool<Voice>::Iterator itNewVoice =              Pool<Voice>::Iterator itNewVoice =
537                  LaunchVoice(pEngineChannel, itVoiceStealEvent, itVoiceStealEvent->Param.Note.Layer, itVoiceStealEvent->Param.Note.ReleaseTrigger, false);                  LaunchVoice(pEngineChannel, itVoiceStealEvent, itVoiceStealEvent->Param.Note.Layer, itVoiceStealEvent->Param.Note.ReleaseTrigger, false, false);
538              if (itNewVoice) {              if (itNewVoice) {
539                  itNewVoice->Render(Samples);                  itNewVoice->Render(Samples);
540                  if (itNewVoice->IsActive()) ActiveVoiceCountTemp++; // still active                  if (itNewVoice->IsActive()) ActiveVoiceCountTemp++; // still active
# Line 466  namespace LinuxSampler { namespace gig { Line 543  namespace LinuxSampler { namespace gig {
543                  }                  }
544              }              }
545              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"));
546    
547                // we need to clear the key's event list explicitly here in case key was never active
548                midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[itVoiceStealEvent->Param.Note.Key];
549                pKey->VoiceTheftsQueued--;
550                if (!pKey->Active && !pKey->VoiceTheftsQueued) pKey->pEvents->clear();
551          }          }
552      }      }
553    
554        /**
555         * Free all keys which have turned inactive in this audio fragment, from
556         * the list of active keys and clear all event lists on that engine
557         * channel.
558         *
559         * @param pEngineChannel - engine channel to cleanup
560         */
561      void Engine::PostProcess(EngineChannel* pEngineChannel) {      void Engine::PostProcess(EngineChannel* pEngineChannel) {
562          // free all keys which have no active voices left          // free all keys which have no active voices left
563          {          {
# Line 478  namespace LinuxSampler { namespace gig { Line 567  namespace LinuxSampler { namespace gig {
567                  midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[*iuiKey];                  midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[*iuiKey];
568                  ++iuiKey;                  ++iuiKey;
569                  if (pKey->pActiveVoices->isEmpty()) FreeKey(pEngineChannel, pKey);                  if (pKey->pActiveVoices->isEmpty()) FreeKey(pEngineChannel, pKey);
570                  #if DEVMODE                  #if CONFIG_DEVMODE
571                  else { // FIXME: should be removed before the final release (purpose: just a sanity check for debugging)                  else { // just a sanity check for debugging
572                      RTList<Voice>::Iterator itVoice     = pKey->pActiveVoices->first();                      RTList<Voice>::Iterator itVoice     = pKey->pActiveVoices->first();
573                      RTList<Voice>::Iterator itVoicesEnd = pKey->pActiveVoices->end();                      RTList<Voice>::Iterator itVoicesEnd = pKey->pActiveVoices->end();
574                      for (; itVoice != itVoicesEnd; ++itVoice) { // iterate through all voices on this key                      for (; itVoice != itVoicesEnd; ++itVoice) { // iterate through all voices on this key
# Line 488  namespace LinuxSampler { namespace gig { Line 577  namespace LinuxSampler { namespace gig {
577                          }                          }
578                      }                      }
579                  }                  }
580                  #endif // DEVMODE                  #endif // CONFIG_DEVMODE
581              }              }
582          }          }
583    
# Line 523  namespace LinuxSampler { namespace gig { Line 612  namespace LinuxSampler { namespace gig {
612                  // finally place sysex event into input event queue                  // finally place sysex event into input event queue
613                  pEventQueue->push(&event);                  pEventQueue->push(&event);
614              }              }
615              else dmsg(1,("Engine: Sysex message too large (%d byte) for input buffer (%d byte)!",Size,SYSEX_BUFFER_SIZE));              else dmsg(1,("Engine: Sysex message too large (%d byte) for input buffer (%d byte)!",Size,CONFIG_SYSEX_BUFFER_SIZE));
616          }          }
617          else dmsg(1,("Engine: Input event queue full!"));          else dmsg(1,("Engine: Input event queue full!"));
618      }      }
# Line 535  namespace LinuxSampler { namespace gig { Line 624  namespace LinuxSampler { namespace gig {
624       *  @param itNoteOnEvent - key, velocity and time stamp of the event       *  @param itNoteOnEvent - key, velocity and time stamp of the event
625       */       */
626      void Engine::ProcessNoteOn(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itNoteOnEvent) {      void Engine::ProcessNoteOn(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itNoteOnEvent) {
627            #if !CONFIG_PROCESS_MUTED_CHANNELS
628            if (pEngineChannel->GetMute()) return; // skip if sampler channel is muted
629            #endif
630    
631          const int key = itNoteOnEvent->Param.Note.Key;          const int key = itNoteOnEvent->Param.Note.Key;
632    
# Line 549  namespace LinuxSampler { namespace gig { Line 641  namespace LinuxSampler { namespace gig {
641          midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[key];          midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[key];
642    
643          pKey->KeyPressed = true; // the MIDI key was now pressed down          pKey->KeyPressed = true; // the MIDI key was now pressed down
644            pKey->Velocity   = itNoteOnEvent->Param.Note.Velocity;
645            pKey->NoteOnTime = FrameTime + itNoteOnEvent->FragmentPos(); // will be used to calculate note length
646    
647          // cancel release process of voices on this key if needed          // cancel release process of voices on this key if needed
648          if (pKey->Active && !pEngineChannel->SustainPedal) {          if (pKey->Active && !pEngineChannel->SustainPedal) {
# Line 571  namespace LinuxSampler { namespace gig { Line 665  namespace LinuxSampler { namespace gig {
665                  int voicesRequired = pRegion->Layers;                  int voicesRequired = pRegion->Layers;
666                  // now launch the required amount of voices                  // now launch the required amount of voices
667                  for (int i = 0; i < voicesRequired; i++)                  for (int i = 0; i < voicesRequired; i++)
668                      LaunchVoice(pEngineChannel, itNoteOnEventOnKeyList, i, false, true);                      LaunchVoice(pEngineChannel, itNoteOnEventOnKeyList, i, false, true, true);
669              }              }
670          }          }
671    
672            // if neither a voice was spawned or postponed then remove note on event from key again
673            if (!pKey->Active && !pKey->VoiceTheftsQueued)
674                pKey->pEvents->free(itNoteOnEventOnKeyList);
675    
676          pKey->RoundRobinIndex++;          pKey->RoundRobinIndex++;
677      }      }
678    
# Line 588  namespace LinuxSampler { namespace gig { Line 686  namespace LinuxSampler { namespace gig {
686       *  @param itNoteOffEvent - key, velocity and time stamp of the event       *  @param itNoteOffEvent - key, velocity and time stamp of the event
687       */       */
688      void Engine::ProcessNoteOff(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itNoteOffEvent) {      void Engine::ProcessNoteOff(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itNoteOffEvent) {
689          midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[itNoteOffEvent->Param.Note.Key];          #if !CONFIG_PROCESS_MUTED_CHANNELS
690            if (pEngineChannel->GetMute()) return; // skip if sampler channel is muted
691            #endif
692    
693            midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[itNoteOffEvent->Param.Note.Key];
694          pKey->KeyPressed = false; // the MIDI key was now released          pKey->KeyPressed = false; // the MIDI key was now released
695    
696          // release voices on this key if needed          // release voices on this key if needed
697          if (pKey->Active && !pEngineChannel->SustainPedal) {          if (pKey->Active && !pEngineChannel->SustainPedal) {
698              itNoteOffEvent->Type = Event::type_release; // transform event type              itNoteOffEvent->Type = Event::type_release; // transform event type
         }  
699    
700          // move event to the key's own event list              // move event to the key's own event list
701          RTList<Event>::Iterator itNoteOffEventOnKeyList = itNoteOffEvent.moveToEndOf(pKey->pEvents);              RTList<Event>::Iterator itNoteOffEventOnKeyList = itNoteOffEvent.moveToEndOf(pKey->pEvents);
702    
703          // spawn release triggered voice(s) if needed              // spawn release triggered voice(s) if needed
704          if (pKey->ReleaseTrigger) {              if (pKey->ReleaseTrigger) {
705              // first, get total amount of required voices (dependant on amount of layers)                  // first, get total amount of required voices (dependant on amount of layers)
706              ::gig::Region* pRegion = pEngineChannel->pInstrument->GetRegion(itNoteOffEventOnKeyList->Param.Note.Key);                  ::gig::Region* pRegion = pEngineChannel->pInstrument->GetRegion(itNoteOffEventOnKeyList->Param.Note.Key);
707              if (pRegion) {                  if (pRegion) {
708                  int voicesRequired = pRegion->Layers;                      int voicesRequired = pRegion->Layers;
709                  // now launch the required amount of voices  
710                  for (int i = 0; i < voicesRequired; i++)                      // MIDI note-on velocity is used instead of note-off velocity
711                      LaunchVoice(pEngineChannel, itNoteOffEventOnKeyList, i, true, false); //FIXME: for the moment we don't perform voice stealing for release triggered samples                      itNoteOffEventOnKeyList->Param.Note.Velocity = pKey->Velocity;
712    
713                        // now launch the required amount of voices
714                        for (int i = 0; i < voicesRequired; i++)
715                            LaunchVoice(pEngineChannel, itNoteOffEventOnKeyList, i, true, false, false); //FIXME: for the moment we don't perform voice stealing for release triggered samples
716                    }
717                    pKey->ReleaseTrigger = false;
718              }              }
719              pKey->ReleaseTrigger = false;  
720                // if neither a voice was spawned or postponed then remove note off event from key again
721                if (!pKey->Active && !pKey->VoiceTheftsQueued)
722                    pKey->pEvents->free(itNoteOffEventOnKeyList);
723          }          }
724      }      }
725    
# Line 640  namespace LinuxSampler { namespace gig { Line 749  namespace LinuxSampler { namespace gig {
749       *  @param VoiceStealing       - if voice stealing should be performed       *  @param VoiceStealing       - if voice stealing should be performed
750       *                               when there is no free voice       *                               when there is no free voice
751       *                               (optional, default = true)       *                               (optional, default = true)
752         *  @param HandleKeyGroupConflicts - if voices should be killed due to a
753         *                                   key group conflict
754       *  @returns pointer to new voice or NULL if there was no free voice or       *  @returns pointer to new voice or NULL if there was no free voice or
755       *           if the voice wasn't triggered (for example when no region is       *           if the voice wasn't triggered (for example when no region is
756       *           defined for the given key).       *           defined for the given key).
757       */       */
758      Pool<Voice>::Iterator Engine::LaunchVoice(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itNoteOnEvent, int iLayer, bool ReleaseTriggerVoice, bool VoiceStealing) {      Pool<Voice>::Iterator Engine::LaunchVoice(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itNoteOnEvent, int iLayer, bool ReleaseTriggerVoice, bool VoiceStealing, bool HandleKeyGroupConflicts) {
759          midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[itNoteOnEvent->Param.Note.Key];          int MIDIKey            = itNoteOnEvent->Param.Note.Key;
760            midi_key_info_t* pKey  = &pEngineChannel->pMIDIKeyInfo[MIDIKey];
761            ::gig::Region* pRegion = pEngineChannel->pInstrument->GetRegion(MIDIKey);
762    
763            // if nothing defined for this key
764            if (!pRegion) return Pool<Voice>::Iterator(); // nothing to do
765    
766            // only mark the first voice of a layered voice (group) to be in a
767            // key group, so the layered voices won't kill each other
768            int iKeyGroup = (iLayer == 0 && !ReleaseTriggerVoice) ? pRegion->KeyGroup : 0;
769    
770            // handle key group (a.k.a. exclusive group) conflicts
771            if (HandleKeyGroupConflicts) {
772                if (iKeyGroup) { // if this voice / key belongs to a key group
773                    uint** ppKeyGroup = &pEngineChannel->ActiveKeyGroups[iKeyGroup];
774                    if (*ppKeyGroup) { // if there's already an active key in that key group
775                        midi_key_info_t* pOtherKey = &pEngineChannel->pMIDIKeyInfo[**ppKeyGroup];
776                        // kill all voices on the (other) key
777                        RTList<Voice>::Iterator itVoiceToBeKilled = pOtherKey->pActiveVoices->first();
778                        RTList<Voice>::Iterator end               = pOtherKey->pActiveVoices->end();
779                        for (; itVoiceToBeKilled != end; ++itVoiceToBeKilled) {
780                            if (itVoiceToBeKilled->Type != Voice::type_release_trigger) {
781                                itVoiceToBeKilled->Kill(itNoteOnEvent);
782                                --VoiceSpawnsLeft; //FIXME: just a hack, we should better check in StealVoice() if the voice was killed due to key conflict
783                            }
784                        }
785                    }
786                }
787            }
788    
789            Voice::type_t VoiceType = Voice::type_normal;
790    
791            // get current dimension values to select the right dimension region
792            //TODO: for stolen voices this dimension region selection block is processed twice, this should be changed
793            //FIXME: controller values for selecting the dimension region here are currently not sample accurate
794            uint DimValues[8] = { 0 };
795            for (int i = pRegion->Dimensions - 1; i >= 0; i--) {
796                switch (pRegion->pDimensionDefinitions[i].dimension) {
797                    case ::gig::dimension_samplechannel:
798                        DimValues[i] = 0; //TODO: we currently ignore this dimension
799                        break;
800                    case ::gig::dimension_layer:
801                        DimValues[i] = iLayer;
802                        break;
803                    case ::gig::dimension_velocity:
804                        DimValues[i] = itNoteOnEvent->Param.Note.Velocity;
805                        break;
806                    case ::gig::dimension_channelaftertouch:
807                        DimValues[i] = 0; //TODO: we currently ignore this dimension
808                        break;
809                    case ::gig::dimension_releasetrigger:
810                        VoiceType = (ReleaseTriggerVoice) ? Voice::type_release_trigger : (!iLayer) ? Voice::type_release_trigger_required : Voice::type_normal;
811                        DimValues[i] = (uint) ReleaseTriggerVoice;
812                        break;
813                    case ::gig::dimension_keyboard:
814                        DimValues[i] = (uint) pEngineChannel->CurrentKeyDimension;
815                        break;
816                    case ::gig::dimension_roundrobin:
817                        DimValues[i] = (uint) pEngineChannel->pMIDIKeyInfo[MIDIKey].RoundRobinIndex; // incremented for each note on
818                        break;
819                    case ::gig::dimension_random:
820                        RandomSeed   = RandomSeed * 1103515245 + 12345; // classic pseudo random number generator
821                        DimValues[i] = (uint) RandomSeed >> (32 - pRegion->pDimensionDefinitions[i].bits); // highest bits are most random
822                        break;
823                    case ::gig::dimension_modwheel:
824                        DimValues[i] = pEngineChannel->ControllerTable[1];
825                        break;
826                    case ::gig::dimension_breath:
827                        DimValues[i] = pEngineChannel->ControllerTable[2];
828                        break;
829                    case ::gig::dimension_foot:
830                        DimValues[i] = pEngineChannel->ControllerTable[4];
831                        break;
832                    case ::gig::dimension_portamentotime:
833                        DimValues[i] = pEngineChannel->ControllerTable[5];
834                        break;
835                    case ::gig::dimension_effect1:
836                        DimValues[i] = pEngineChannel->ControllerTable[12];
837                        break;
838                    case ::gig::dimension_effect2:
839                        DimValues[i] = pEngineChannel->ControllerTable[13];
840                        break;
841                    case ::gig::dimension_genpurpose1:
842                        DimValues[i] = pEngineChannel->ControllerTable[16];
843                        break;
844                    case ::gig::dimension_genpurpose2:
845                        DimValues[i] = pEngineChannel->ControllerTable[17];
846                        break;
847                    case ::gig::dimension_genpurpose3:
848                        DimValues[i] = pEngineChannel->ControllerTable[18];
849                        break;
850                    case ::gig::dimension_genpurpose4:
851                        DimValues[i] = pEngineChannel->ControllerTable[19];
852                        break;
853                    case ::gig::dimension_sustainpedal:
854                        DimValues[i] = pEngineChannel->ControllerTable[64];
855                        break;
856                    case ::gig::dimension_portamento:
857                        DimValues[i] = pEngineChannel->ControllerTable[65];
858                        break;
859                    case ::gig::dimension_sostenutopedal:
860                        DimValues[i] = pEngineChannel->ControllerTable[66];
861                        break;
862                    case ::gig::dimension_softpedal:
863                        DimValues[i] = pEngineChannel->ControllerTable[67];
864                        break;
865                    case ::gig::dimension_genpurpose5:
866                        DimValues[i] = pEngineChannel->ControllerTable[80];
867                        break;
868                    case ::gig::dimension_genpurpose6:
869                        DimValues[i] = pEngineChannel->ControllerTable[81];
870                        break;
871                    case ::gig::dimension_genpurpose7:
872                        DimValues[i] = pEngineChannel->ControllerTable[82];
873                        break;
874                    case ::gig::dimension_genpurpose8:
875                        DimValues[i] = pEngineChannel->ControllerTable[83];
876                        break;
877                    case ::gig::dimension_effect1depth:
878                        DimValues[i] = pEngineChannel->ControllerTable[91];
879                        break;
880                    case ::gig::dimension_effect2depth:
881                        DimValues[i] = pEngineChannel->ControllerTable[92];
882                        break;
883                    case ::gig::dimension_effect3depth:
884                        DimValues[i] = pEngineChannel->ControllerTable[93];
885                        break;
886                    case ::gig::dimension_effect4depth:
887                        DimValues[i] = pEngineChannel->ControllerTable[94];
888                        break;
889                    case ::gig::dimension_effect5depth:
890                        DimValues[i] = pEngineChannel->ControllerTable[95];
891                        break;
892                    case ::gig::dimension_none:
893                        std::cerr << "gig::Engine::LaunchVoice() Error: dimension=none\n" << std::flush;
894                        break;
895                    default:
896                        std::cerr << "gig::Engine::LaunchVoice() Error: Unknown dimension\n" << std::flush;
897                }
898            }
899            ::gig::DimensionRegion* pDimRgn = pRegion->GetDimensionRegionByValue(DimValues);
900    
901            // no need to continue if sample is silent
902            if (!pDimRgn->pSample || !pDimRgn->pSample->SamplesTotal) return Pool<Voice>::Iterator();
903    
904          // allocate a new voice for the key          // allocate a new voice for the key
905          Pool<Voice>::Iterator itNewVoice = pKey->pActiveVoices->allocAppend();          Pool<Voice>::Iterator itNewVoice = pKey->pActiveVoices->allocAppend();
906          if (itNewVoice) {          if (itNewVoice) {
907              // launch the new voice              // launch the new voice
908              if (itNewVoice->Trigger(pEngineChannel, itNoteOnEvent, pEngineChannel->Pitch, pEngineChannel->pInstrument, iLayer, ReleaseTriggerVoice, VoiceStealing) < 0) {              if (itNewVoice->Trigger(pEngineChannel, itNoteOnEvent, pEngineChannel->Pitch, pDimRgn, VoiceType, iKeyGroup) < 0) {
909                  dmsg(4,("Voice not triggered\n"));                  dmsg(4,("Voice not triggered\n"));
910                  pKey->pActiveVoices->free(itNewVoice);                  pKey->pActiveVoices->free(itNewVoice);
911              }              }
912              else { // on success              else { // on success
913                  uint** ppKeyGroup = NULL;                  --VoiceSpawnsLeft;
                 if (itNewVoice->KeyGroup) { // if this voice / key belongs to a key group  
                     ppKeyGroup = &pEngineChannel->ActiveKeyGroups[itNewVoice->KeyGroup];  
                     if (*ppKeyGroup) { // if there's already an active key in that key group  
                         midi_key_info_t* pOtherKey = &pEngineChannel->pMIDIKeyInfo[**ppKeyGroup];  
                         // kill all voices on the (other) key  
                         RTList<Voice>::Iterator itVoiceToBeKilled = pOtherKey->pActiveVoices->first();  
                         RTList<Voice>::Iterator end               = pOtherKey->pActiveVoices->end();  
                         for (; itVoiceToBeKilled != end; ++itVoiceToBeKilled) {  
                             if (itVoiceToBeKilled->Type != Voice::type_release_trigger) itVoiceToBeKilled->Kill(itNoteOnEvent);  
                         }  
                     }  
                 }  
914                  if (!pKey->Active) { // mark as active key                  if (!pKey->Active) { // mark as active key
915                      pKey->Active = true;                      pKey->Active = true;
916                      pKey->itSelf = pEngineChannel->pActiveKeys->allocAppend();                      pKey->itSelf = pEngineChannel->pActiveKeys->allocAppend();
917                      *pKey->itSelf = itNoteOnEvent->Param.Note.Key;                      *pKey->itSelf = itNoteOnEvent->Param.Note.Key;
918                  }                  }
919                  if (itNewVoice->KeyGroup) {                  if (itNewVoice->KeyGroup) {
920                        uint** ppKeyGroup = &pEngineChannel->ActiveKeyGroups[itNewVoice->KeyGroup];
921                      *ppKeyGroup = &*pKey->itSelf; // put key as the (new) active key to its key group                      *ppKeyGroup = &*pKey->itSelf; // put key as the (new) active key to its key group
922                  }                  }
923                  if (itNewVoice->Type == Voice::type_release_trigger_required) pKey->ReleaseTrigger = true; // mark key for the need of release triggered voice(s)                  if (itNewVoice->Type == Voice::type_release_trigger_required) pKey->ReleaseTrigger = true; // mark key for the need of release triggered voice(s)
# Line 682  namespace LinuxSampler { namespace gig { Line 925  namespace LinuxSampler { namespace gig {
925              }              }
926          }          }
927          else if (VoiceStealing) {          else if (VoiceStealing) {
   
928              // try to steal one voice              // try to steal one voice
929              StealVoice(pEngineChannel, itNoteOnEvent);              int result = StealVoice(pEngineChannel, itNoteOnEvent);
930                if (!result) { // voice stolen successfully
931              // 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
932              RTList<Event>::Iterator itStealEvent = pVoiceStealingQueue->allocAppend();                  RTList<Event>::Iterator itStealEvent = pVoiceStealingQueue->allocAppend();
933              if (itStealEvent) {                  if (itStealEvent) {
934                  *itStealEvent = *itNoteOnEvent; // copy event                      *itStealEvent = *itNoteOnEvent; // copy event
935                  itStealEvent->Param.Note.Layer = iLayer;                      itStealEvent->Param.Note.Layer = iLayer;
936                  itStealEvent->Param.Note.ReleaseTrigger = ReleaseTriggerVoice;                      itStealEvent->Param.Note.ReleaseTrigger = ReleaseTriggerVoice;
937                        pKey->VoiceTheftsQueued++;
938                    }
939                    else dmsg(1,("Voice stealing queue full!\n"));
940              }              }
             else dmsg(1,("Voice stealing queue full!\n"));  
941          }          }
942    
943          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 951  namespace LinuxSampler { namespace gig {
951       *       *
952       *  @param pEngineChannel - engine channel on which this event occured on       *  @param pEngineChannel - engine channel on which this event occured on
953       *  @param itNoteOnEvent - key, velocity and time stamp of the event       *  @param itNoteOnEvent - key, velocity and time stamp of the event
954         *  @returns 0 on success, a value < 0 if no active voice could be picked for voice stealing
955       */       */
956      void Engine::StealVoice(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itNoteOnEvent) {      int Engine::StealVoice(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itNoteOnEvent) {
957          if (!VoiceTheftsLeft) {          if (VoiceSpawnsLeft <= 0) {
958              dmsg(1,("Max. voice thefts per audio fragment reached (you may raise MAX_AUDIO_VOICES).\n"));              dmsg(1,("Max. voice thefts per audio fragment reached (you may raise CONFIG_MAX_VOICES).\n"));
959              return;              return -1;
960          }          }
961          if (!pEventPool->poolIsEmpty()) {          if (!pEventPool->poolIsEmpty()) {
962    
963              RTList<Voice>::Iterator itSelectedVoice;              RTList<Voice>::Iterator itSelectedVoice;
964    
965              // Select one voice for voice stealing              // Select one voice for voice stealing
966              switch (VOICE_STEAL_ALGORITHM) {              switch (CONFIG_VOICE_STEAL_ALGO) {
967    
968                  // try to pick the oldest voice on the key where the new                  // try to pick the oldest voice on the key where the new
969                  // voice should be spawned, if there is no voice on that                  // voice should be spawned, if there is no voice on that
970                  // key, or no voice left to kill there, then procceed with                  // key, or no voice left to kill, then procceed with
971                  // 'oldestkey' algorithm                  // 'oldestkey' algorithm
972                  case voice_steal_algo_oldestvoiceonkey: {                  case voice_steal_algo_oldestvoiceonkey: {
                 #if 0 // FIXME: broken  
973                      midi_key_info_t* pSelectedKey = &pEngineChannel->pMIDIKeyInfo[itNoteOnEvent->Param.Note.Key];                      midi_key_info_t* pSelectedKey = &pEngineChannel->pMIDIKeyInfo[itNoteOnEvent->Param.Note.Key];
974                      if (this->itLastStolenVoice) {                      itSelectedVoice = pSelectedKey->pActiveVoices->first();
975                          itSelectedVoice = this->itLastStolenVoice;                      // proceed iterating if voice was created in this fragment cycle
976                          ++itSelectedVoice;                      while (itSelectedVoice && !itSelectedVoice->IsStealable()) ++itSelectedVoice;
977                      }                      // if we haven't found a voice then proceed with algorithm 'oldestkey'
978                      else { // no voice stolen in this audio fragment cycle yet                      if (itSelectedVoice && itSelectedVoice->IsStealable()) break;
                         itSelectedVoice = pSelectedKey->pActiveVoices->first();  
                     }  
                     if (itSelectedVoice) {  
                         iuiSelectedKey = pSelectedKey->itSelf;  
                         break; // selection succeeded  
                     }  
                 #endif  
979                  } // no break - intentional !                  } // no break - intentional !
980    
981                  // try to pick the oldest voice on the oldest active key                  // try to pick the oldest voice on the oldest active key
982                    // from the same engine channel
983                  // (caution: must stay after 'oldestvoiceonkey' algorithm !)                  // (caution: must stay after 'oldestvoiceonkey' algorithm !)
984                  case voice_steal_algo_oldestkey: {                  case voice_steal_algo_oldestkey: {
985                        // if we already stole in this fragment, try to proceed on same key
986                      if (this->itLastStolenVoice) {                      if (this->itLastStolenVoice) {
987                          itSelectedVoice = this->itLastStolenVoice;                          itSelectedVoice = this->itLastStolenVoice;
988                          ++itSelectedVoice;                          do {
989                          if (itSelectedVoice) break; // selection succeeded                              ++itSelectedVoice;
990                          RTList<uint>::Iterator iuiSelectedKey = this->iuiLastStolenKey;                          } while (itSelectedVoice && !itSelectedVoice->IsStealable()); // proceed iterating if voice was created in this fragment cycle
991                          ++iuiSelectedKey;                          // found a "stealable" voice ?
992                          if (iuiSelectedKey) {                          if (itSelectedVoice && itSelectedVoice->IsStealable()) {
993                              this->iuiLastStolenKey = iuiSelectedKey;                              // remember which voice we stole, so we can simply proceed on next voice stealing
994                              midi_key_info_t* pSelectedKey = &pEngineChannel->pMIDIKeyInfo[*iuiSelectedKey];                              this->itLastStolenVoice = itSelectedVoice;
                             itSelectedVoice = pSelectedKey->pActiveVoices->first();  
995                              break; // selection succeeded                              break; // selection succeeded
996                          }                          }
997                      }                      }
998                        // get (next) oldest key
999                        RTList<uint>::Iterator iuiSelectedKey = (this->iuiLastStolenKey) ? ++this->iuiLastStolenKey : pEngineChannel->pActiveKeys->first();
1000                        while (iuiSelectedKey) {
1001                            midi_key_info_t* pSelectedKey = &pEngineChannel->pMIDIKeyInfo[*iuiSelectedKey];
1002                            itSelectedVoice = pSelectedKey->pActiveVoices->first();
1003                            // proceed iterating if voice was created in this fragment cycle
1004                            while (itSelectedVoice && !itSelectedVoice->IsStealable()) ++itSelectedVoice;
1005                            // found a "stealable" voice ?
1006                            if (itSelectedVoice && itSelectedVoice->IsStealable()) {
1007                                // remember which voice on which key we stole, so we can simply proceed on next voice stealing
1008                                this->iuiLastStolenKey  = iuiSelectedKey;
1009                                this->itLastStolenVoice = itSelectedVoice;
1010                                break; // selection succeeded
1011                            }
1012                            ++iuiSelectedKey; // get next oldest key
1013                        }
1014                      break;                      break;
1015                  }                  }
1016    
# Line 764  namespace LinuxSampler { namespace gig { Line 1018  namespace LinuxSampler { namespace gig {
1018                  case voice_steal_algo_none:                  case voice_steal_algo_none:
1019                  default: {                  default: {
1020                      dmsg(1,("No free voice (voice stealing disabled)!\n"));                      dmsg(1,("No free voice (voice stealing disabled)!\n"));
1021                      return;                      return -1;
1022                  }                  }
1023              }              }
1024    
1025              // steal oldest voice on the oldest key from this or any other engine channel              // if we couldn't steal a voice from the same engine channel then
1026              if (!itSelectedVoice) {              // steal oldest voice on the oldest key from any other engine channel
1027                  EngineChannel* pSelectedChannel = (pLastStolenChannel) ? pLastStolenChannel : pEngineChannel;              // (the smaller engine channel number, the higher priority)
1028                  int iChannelIndex = pSelectedChannel->iEngineIndexSelf;              if (!itSelectedVoice || !itSelectedVoice->IsStealable()) {
1029                  while (true) {                  EngineChannel* pSelectedChannel;
1030                      RTList<uint>::Iterator iuiSelectedKey = pSelectedChannel->pActiveKeys->first();                  int            iChannelIndex;
1031                      if (iuiSelectedKey) {                  // select engine channel
1032                    if (pLastStolenChannel) {
1033                        pSelectedChannel = pLastStolenChannel;
1034                        iChannelIndex    = pSelectedChannel->iEngineIndexSelf;
1035                    } else { // pick the engine channel followed by this engine channel
1036                        iChannelIndex    = (pEngineChannel->iEngineIndexSelf + 1) % engineChannels.size();
1037                        pSelectedChannel = engineChannels[iChannelIndex];
1038                    }
1039    
1040                    // if we already stole in this fragment, try to proceed on same key
1041                    if (this->itLastStolenVoiceGlobally) {
1042                        itSelectedVoice = this->itLastStolenVoiceGlobally;
1043                        do {
1044                            ++itSelectedVoice;
1045                        } while (itSelectedVoice && !itSelectedVoice->IsStealable()); // proceed iterating if voice was created in this fragment cycle
1046                    }
1047    
1048                    #if CONFIG_DEVMODE
1049                    EngineChannel* pBegin = pSelectedChannel; // to detect endless loop
1050                    #endif // CONFIG_DEVMODE
1051    
1052                    // did we find a 'stealable' voice?
1053                    if (itSelectedVoice && itSelectedVoice->IsStealable()) {
1054                        // remember which voice we stole, so we can simply proceed on next voice stealing
1055                        this->itLastStolenVoiceGlobally = itSelectedVoice;
1056                    } else while (true) { // iterate through engine channels
1057                        // get (next) oldest key
1058                        RTList<uint>::Iterator iuiSelectedKey = (this->iuiLastStolenKeyGlobally) ? ++this->iuiLastStolenKeyGlobally : pSelectedChannel->pActiveKeys->first();
1059                        this->iuiLastStolenKeyGlobally = RTList<uint>::Iterator(); // to prevent endless loop (see line above)
1060                        while (iuiSelectedKey) {
1061                          midi_key_info_t* pSelectedKey = &pSelectedChannel->pMIDIKeyInfo[*iuiSelectedKey];                          midi_key_info_t* pSelectedKey = &pSelectedChannel->pMIDIKeyInfo[*iuiSelectedKey];
1062                          itSelectedVoice    = pSelectedKey->pActiveVoices->first();                          itSelectedVoice = pSelectedKey->pActiveVoices->first();
1063                          iuiLastStolenKey   = iuiSelectedKey;                          // proceed iterating if voice was created in this fragment cycle
1064                          pLastStolenChannel = pSelectedChannel;                          while (itSelectedVoice && !itSelectedVoice->IsStealable()) ++itSelectedVoice;
1065                          break; // selection succeeded                          // found a "stealable" voice ?
1066                            if (itSelectedVoice && itSelectedVoice->IsStealable()) {
1067                                // remember which voice on which key on which engine channel we stole, so we can simply proceed on next voice stealing
1068                                this->iuiLastStolenKeyGlobally  = iuiSelectedKey;
1069                                this->itLastStolenVoiceGlobally = itSelectedVoice;
1070                                this->pLastStolenChannel        = pSelectedChannel;
1071                                goto stealable_voice_found; // selection succeeded
1072                            }
1073                            ++iuiSelectedKey; // get next key on current engine channel
1074                      }                      }
1075                        // get next engine channel
1076                      iChannelIndex    = (iChannelIndex + 1) % engineChannels.size();                      iChannelIndex    = (iChannelIndex + 1) % engineChannels.size();
1077                      pSelectedChannel =  engineChannels[iChannelIndex];                      pSelectedChannel = engineChannels[iChannelIndex];
1078    
1079                        #if CONFIG_DEVMODE
1080                        if (pSelectedChannel == pBegin) {
1081                            dmsg(1,("FATAL ERROR: voice stealing endless loop!\n"));
1082                            dmsg(1,("VoiceSpawnsLeft=%d.\n", VoiceSpawnsLeft));
1083                            dmsg(1,("Exiting.\n"));
1084                            exit(-1);
1085                        }
1086                        #endif // CONFIG_DEVMODE
1087                  }                  }
1088              }              }
1089    
1090              //FIXME: can be removed, just a sanity check for debugging              // jump point if a 'stealable' voice was found
1091              if (!itSelectedVoice->IsActive()) dmsg(1,("gig::Engine: ERROR, tried to steal a voice which was not active !!!\n"));              stealable_voice_found:
1092    
1093                #if CONFIG_DEVMODE
1094                if (!itSelectedVoice->IsActive()) {
1095                    dmsg(1,("gig::Engine: ERROR, tried to steal a voice which was not active !!!\n"));
1096                    return -1;
1097                }
1098                #endif // CONFIG_DEVMODE
1099    
1100              // now kill the selected voice              // now kill the selected voice
1101              itSelectedVoice->Kill(itNoteOnEvent);              itSelectedVoice->Kill(itNoteOnEvent);
1102    
1103              // remember which voice we stole, so we can simply proceed for the next voice stealing              --VoiceSpawnsLeft;
             itLastStolenVoice = itSelectedVoice;  
1104    
1105              --VoiceTheftsLeft;              return 0; // success
1106            }
1107            else {
1108                dmsg(1,("Event pool emtpy!\n"));
1109                return -1;
1110          }          }
         else dmsg(1,("Event pool emtpy!\n"));  
1111      }      }
1112    
1113      /**      /**
# Line 856  namespace LinuxSampler { namespace gig { Line 1166  namespace LinuxSampler { namespace gig {
1166      void Engine::ProcessControlChange(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itControlChangeEvent) {      void Engine::ProcessControlChange(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itControlChangeEvent) {
1167          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));
1168    
1169          switch (itControlChangeEvent->Param.CC.Controller) {          // update controller value in the engine channel's controller table
1170            pEngineChannel->ControllerTable[itControlChangeEvent->Param.CC.Controller] = itControlChangeEvent->Param.CC.Value;
1171    
1172            // move event from the unsorted event list to the control change event list
1173            Pool<Event>::Iterator itControlChangeEventOnCCList = itControlChangeEvent.moveToEndOf(pEngineChannel->pCCEvents);
1174    
1175            switch (itControlChangeEventOnCCList->Param.CC.Controller) {
1176              case 7: { // volume              case 7: { // volume
1177                  //TODO: not sample accurate yet                  //TODO: not sample accurate yet
1178                  pEngineChannel->GlobalVolume = (float) itControlChangeEvent->Param.CC.Value / 127.0f;                  pEngineChannel->GlobalVolume = (float) itControlChangeEventOnCCList->Param.CC.Value / 127.0f;
1179                    pEngineChannel->bStatusChanged = true; // engine channel status has changed, so set notify flag
1180                  break;                  break;
1181              }              }
1182              case 10: { // panpot              case 10: { // panpot
1183                  //TODO: not sample accurate yet                  //TODO: not sample accurate yet
1184                  const int pan = (int) itControlChangeEvent->Param.CC.Value - 64;                  const int pan = (int) itControlChangeEventOnCCList->Param.CC.Value - 64;
1185                  pEngineChannel->GlobalPanLeft  = 1.0f - float(RTMath::Max(pan, 0)) /  63.0f;                  pEngineChannel->GlobalPanLeft  = 1.0f - float(RTMath::Max(pan, 0)) /  63.0f;
1186                  pEngineChannel->GlobalPanRight = 1.0f - float(RTMath::Min(pan, 0)) / -64.0f;                  pEngineChannel->GlobalPanRight = 1.0f - float(RTMath::Min(pan, 0)) / -64.0f;
1187                  break;                  break;
1188              }              }
1189              case 64: { // sustain              case 64: { // sustain
1190                  if (itControlChangeEvent->Param.CC.Value >= 64 && !pEngineChannel->SustainPedal) {                  if (itControlChangeEventOnCCList->Param.CC.Value >= 64 && !pEngineChannel->SustainPedal) {
1191                      dmsg(4,("PEDAL DOWN\n"));                      dmsg(4,("PEDAL DOWN\n"));
1192                      pEngineChannel->SustainPedal = true;                      pEngineChannel->SustainPedal = true;
1193    
1194                        #if !CONFIG_PROCESS_MUTED_CHANNELS
1195                        if (pEngineChannel->GetMute()) return; // skip if sampler channel is muted
1196                        #endif
1197    
1198                      // cancel release process of voices if necessary                      // cancel release process of voices if necessary
1199                      RTList<uint>::Iterator iuiKey = pEngineChannel->pActiveKeys->first();                      RTList<uint>::Iterator iuiKey = pEngineChannel->pActiveKeys->first();
1200                      if (iuiKey) {                      for (; iuiKey; ++iuiKey) {
1201                          itControlChangeEvent->Type = Event::type_cancel_release; // transform event type                          midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[*iuiKey];
1202                          while (iuiKey) {                          if (!pKey->KeyPressed) {
1203                              midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[*iuiKey];                              RTList<Event>::Iterator itNewEvent = pKey->pEvents->allocAppend();
1204                              ++iuiKey;                              if (itNewEvent) {
1205                              if (!pKey->KeyPressed) {                                  *itNewEvent = *itControlChangeEventOnCCList; // copy event to the key's own event list
1206                                  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"));  
1207                              }                              }
1208                                else dmsg(1,("Event pool emtpy!\n"));
1209                          }                          }
1210                      }                      }
1211                  }                  }
1212                  if (itControlChangeEvent->Param.CC.Value < 64 && pEngineChannel->SustainPedal) {                  if (itControlChangeEventOnCCList->Param.CC.Value < 64 && pEngineChannel->SustainPedal) {
1213                      dmsg(4,("PEDAL UP\n"));                      dmsg(4,("PEDAL UP\n"));
1214                      pEngineChannel->SustainPedal = false;                      pEngineChannel->SustainPedal = false;
1215    
1216                        #if !CONFIG_PROCESS_MUTED_CHANNELS
1217                        if (pEngineChannel->GetMute()) return; // skip if sampler channel is muted
1218                        #endif
1219    
1220                      // release voices if their respective key is not pressed                      // release voices if their respective key is not pressed
1221                      RTList<uint>::Iterator iuiKey = pEngineChannel->pActiveKeys->first();                      RTList<uint>::Iterator iuiKey = pEngineChannel->pActiveKeys->first();
1222                      if (iuiKey) {                      for (; iuiKey; ++iuiKey) {
1223                          itControlChangeEvent->Type = Event::type_release; // transform event type                          midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[*iuiKey];
1224                          while (iuiKey) {                          if (!pKey->KeyPressed) {
1225                              midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[*iuiKey];                              RTList<Event>::Iterator itNewEvent = pKey->pEvents->allocAppend();
1226                              ++iuiKey;                              if (itNewEvent) {
1227                              if (!pKey->KeyPressed) {                                  *itNewEvent = *itControlChangeEventOnCCList; // copy event to the key's own event list
1228                                  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"));  
1229                              }                              }
1230                                else dmsg(1,("Event pool emtpy!\n"));
1231                          }                          }
1232                      }                      }
1233                  }                  }
1234                  break;                  break;
1235              }              }
         }  
1236    
         // update controller value in the engine's controller table  
         pEngineChannel->ControllerTable[itControlChangeEvent->Param.CC.Controller] = itControlChangeEvent->Param.CC.Value;  
1237    
1238          // move event from the unsorted event list to the control change event list              // Channel Mode Messages
1239          itControlChangeEvent.moveToEndOf(pEngineChannel->pCCEvents);  
1240                case 120: { // all sound off
1241                    KillAllVoices(pEngineChannel, itControlChangeEventOnCCList);
1242                    break;
1243                }
1244                case 121: { // reset all controllers
1245                    pEngineChannel->ResetControllers();
1246                    break;
1247                }
1248                case 123: { // all notes off
1249                    ReleaseAllVoices(pEngineChannel, itControlChangeEventOnCCList);
1250                    break;
1251                }
1252            }
1253      }      }
1254    
1255      /**      /**
# Line 934  namespace LinuxSampler { namespace gig { Line 1267  namespace LinuxSampler { namespace gig {
1267    
1268          switch (id) {          switch (id) {
1269              case 0x41: { // Roland              case 0x41: { // Roland
1270                    dmsg(3,("Roland Sysex\n"));
1271                  uint8_t device_id, model_id, cmd_id;                  uint8_t device_id, model_id, cmd_id;
1272                  if (!reader.pop(&device_id)) goto free_sysex_data;                  if (!reader.pop(&device_id)) goto free_sysex_data;
1273                  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 1280  namespace LinuxSampler { namespace gig {
1280                  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
1281                  if (reader.read(&addr[0], 3) != 3) goto free_sysex_data;                  if (reader.read(&addr[0], 3) != 3) goto free_sysex_data;
1282                  if (addr[0] == 0x40 && addr[1] == 0x00) { // System Parameters                  if (addr[0] == 0x40 && addr[1] == 0x00) { // System Parameters
1283                        dmsg(3,("\tSystem Parameter\n"));
1284                  }                  }
1285                  else if (addr[0] == 0x40 && addr[1] == 0x01) { // Common Parameters                  else if (addr[0] == 0x40 && addr[1] == 0x01) { // Common Parameters
1286                        dmsg(3,("\tCommon Parameter\n"));
1287                  }                  }
1288                  else if (addr[0] == 0x40 && (addr[1] & 0xf0) == 0x10) { // Part Parameters (1)                  else if (addr[0] == 0x40 && (addr[1] & 0xf0) == 0x10) { // Part Parameters (1)
1289                      switch (addr[3]) {                      dmsg(3,("\tPart Parameter\n"));
1290                        switch (addr[2]) {
1291                          case 0x40: { // scale tuning                          case 0x40: { // scale tuning
1292                                dmsg(3,("\t\tScale Tuning\n"));
1293                              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
1294                              if (reader.read(&scale_tunes[0], 12) != 12) goto free_sysex_data;                              if (reader.read(&scale_tunes[0], 12) != 12) goto free_sysex_data;
1295                              uint8_t checksum;                              uint8_t checksum;
1296                              if (!reader.pop(&checksum))                      goto free_sysex_data;                              if (!reader.pop(&checksum)) goto free_sysex_data;
1297                              if (GSCheckSum(checksum_reader, 12) != checksum) goto free_sysex_data;                              #if CONFIG_ASSERT_GS_SYSEX_CHECKSUM
1298                                if (GSCheckSum(checksum_reader, 12)) goto free_sysex_data;
1299                                #endif // CONFIG_ASSERT_GS_SYSEX_CHECKSUM
1300                              for (int i = 0; i < 12; i++) scale_tunes[i] -= 64;                              for (int i = 0; i < 12; i++) scale_tunes[i] -= 64;
1301                              AdjustScale((int8_t*) scale_tunes);                              AdjustScale((int8_t*) scale_tunes);
1302                                dmsg(3,("\t\t\tNew scale applied.\n"));
1303                              break;                              break;
1304                          }                          }
1305                      }                      }
# Line 1003  namespace LinuxSampler { namespace gig { Line 1344  namespace LinuxSampler { namespace gig {
1344      }      }
1345    
1346      /**      /**
1347         * Releases all voices on an engine channel. All voices will go into
1348         * the release stage and thus it might take some time (e.g. dependant to
1349         * their envelope release time) until they actually die.
1350         *
1351         * @param pEngineChannel - engine channel on which all voices should be released
1352         * @param itReleaseEvent - event which caused this releasing of all voices
1353         */
1354        void Engine::ReleaseAllVoices(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itReleaseEvent) {
1355            RTList<uint>::Iterator iuiKey = pEngineChannel->pActiveKeys->first();
1356            while (iuiKey) {
1357                midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[*iuiKey];
1358                ++iuiKey;
1359                // append a 'release' event to the key's own event list
1360                RTList<Event>::Iterator itNewEvent = pKey->pEvents->allocAppend();
1361                if (itNewEvent) {
1362                    *itNewEvent = *itReleaseEvent; // copy original event (to the key's event list)
1363                    itNewEvent->Type = Event::type_release; // transform event type
1364                }
1365                else dmsg(1,("Event pool emtpy!\n"));
1366            }
1367        }
1368    
1369        /**
1370         * Kills all voices on an engine channel as soon as possible. Voices
1371         * won't get into release state, their volume level will be ramped down
1372         * as fast as possible.
1373         *
1374         * @param pEngineChannel - engine channel on which all voices should be killed
1375         * @param itKillEvent    - event which caused this killing of all voices
1376         */
1377        void Engine::KillAllVoices(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itKillEvent) {
1378            RTList<uint>::Iterator iuiKey = pEngineChannel->pActiveKeys->first();
1379            RTList<uint>::Iterator end    = pEngineChannel->pActiveKeys->end();
1380            while (iuiKey != end) { // iterate through all active keys
1381                midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[*iuiKey];
1382                ++iuiKey;
1383                RTList<Voice>::Iterator itVoice     = pKey->pActiveVoices->first();
1384                RTList<Voice>::Iterator itVoicesEnd = pKey->pActiveVoices->end();
1385                for (; itVoice != itVoicesEnd; ++itVoice) { // iterate through all voices on this key
1386                    itVoice->Kill(itKillEvent);
1387                    --VoiceSpawnsLeft; //FIXME: just a temporary workaround, we should check the cause in StealVoice() instead
1388                }
1389            }
1390        }
1391    
1392        /**
1393       * Initialize the parameter sequence for the modulation destination given by       * Initialize the parameter sequence for the modulation destination given by
1394       * by 'dst' with the constant value given by val.       * by 'dst' with the constant value given by val.
1395       */       */
# Line 1046  namespace LinuxSampler { namespace gig { Line 1433  namespace LinuxSampler { namespace gig {
1433      }      }
1434    
1435      String Engine::EngineName() {      String Engine::EngineName() {
1436          return "GigEngine";          return LS_GIG_ENGINE_NAME;
1437      }      }
1438    
1439      String Engine::Description() {      String Engine::Description() {
# Line 1054  namespace LinuxSampler { namespace gig { Line 1441  namespace LinuxSampler { namespace gig {
1441      }      }
1442    
1443      String Engine::Version() {      String Engine::Version() {
1444          String s = "$Revision: 1.32 $";          String s = "$Revision: 1.51 $";
1445          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
1446      }      }
1447    
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