/[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 438 by persson, Wed Mar 9 22:12:15 2005 UTC revision 460 by schoenebeck, Mon Mar 14 22:35:44 2005 UTC
# Line 64  namespace LinuxSampler { namespace gig { Line 64  namespace LinuxSampler { namespace gig {
64              engines[pDevice] = pEngine;              engines[pDevice] = pEngine;
65          }          }
66          // register engine channel to the engine instance          // register engine channel to the engine instance
67          pEngine->engineChannels.push_back(pChannel);          pEngine->engineChannels.add(pChannel);
68            // remember index in the ArrayList
69            pChannel->iEngineIndexSelf = pEngine->engineChannels.size() - 1;
70          dmsg(4,("This gig::Engine has now %d EngineChannels.\n",pEngine->engineChannels.size()));          dmsg(4,("This gig::Engine has now %d EngineChannels.\n",pEngine->engineChannels.size()));
71          return pEngine;          return pEngine;
72      }      }
# Line 103  namespace LinuxSampler { namespace gig { Line 105  namespace LinuxSampler { namespace gig {
105          pEventPool         = new Pool<Event>(MAX_EVENTS_PER_FRAGMENT);          pEventPool         = new Pool<Event>(MAX_EVENTS_PER_FRAGMENT);
106          pVoicePool         = new Pool<Voice>(MAX_AUDIO_VOICES);          pVoicePool         = new Pool<Voice>(MAX_AUDIO_VOICES);
107          pVoiceStealingQueue = new RTList<Event>(pEventPool);          pVoiceStealingQueue = new RTList<Event>(pEventPool);
108          pEvents            = new RTList<Event>(pEventPool);          pGlobalEvents      = new RTList<Event>(pEventPool);
         pCCEvents          = new RTList<Event>(pEventPool);  
   
         for (uint i = 0; i < Event::destination_count; i++) {  
             pSynthesisEvents[i] = new RTList<Event>(pEventPool);  
         }  
109          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()) {
110              iterVoice->SetEngine(this);              iterVoice->SetEngine(this);
111          }          }
# Line 128  namespace LinuxSampler { namespace gig { Line 125  namespace LinuxSampler { namespace gig {
125              delete pDiskThread;              delete pDiskThread;
126              dmsg(1,("OK\n"));              dmsg(1,("OK\n"));
127          }          }
         for (uint i = 0; i < Event::destination_count; i++) {  
             if (pSynthesisEvents[i]) delete pSynthesisEvents[i];  
         }  
         if (pEvents)     delete pEvents;  
         if (pCCEvents)   delete pCCEvents;  
128          if (pEventQueue) delete pEventQueue;          if (pEventQueue) delete pEventQueue;
129          if (pEventPool)  delete pEventPool;          if (pEventPool)  delete pEventPool;
130          if (pVoicePool) {          if (pVoicePool) {
# Line 186  namespace LinuxSampler { namespace gig { Line 178  namespace LinuxSampler { namespace gig {
178    
179          // reset voice stealing parameters          // reset voice stealing parameters
180          pVoiceStealingQueue->clear();          pVoiceStealingQueue->clear();
181            itLastStolenVoice  = RTList<Voice>::Iterator();
182            iuiLastStolenKey   = RTList<uint>::Iterator();
183            pLastStolenChannel = NULL;
184    
185          // reset to normal chromatic scale (means equal temper)          // reset to normal chromatic scale (means equal temper)
186          memset(&ScaleTuning[0], 0x00, 12);          memset(&ScaleTuning[0], 0x00, 12);
# Line 217  namespace LinuxSampler { namespace gig { Line 212  namespace LinuxSampler { namespace gig {
212              throw LinuxSamplerException(msg);              throw LinuxSamplerException(msg);
213          }          }
214    
215          this->MaxSamplesPerCycle      = pAudioOutputDevice->MaxSamplesPerCycle();          this->MaxSamplesPerCycle = pAudioOutputDevice->MaxSamplesPerCycle();
216          this->SampleRate              = pAudioOutputDevice->SampleRate();          this->SampleRate         = pAudioOutputDevice->SampleRate();
217    
218          // FIXME: audio drivers with varying fragment sizes might be a problem here          // FIXME: audio drivers with varying fragment sizes might be a problem here
219          MaxFadeOutPos = MaxSamplesPerCycle - int(double(SampleRate) * EG_MIN_RELEASE_TIME) - 1;          MaxFadeOutPos = MaxSamplesPerCycle - int(double(SampleRate) * EG_MIN_RELEASE_TIME) - 1;
# Line 278  namespace LinuxSampler { namespace gig { Line 273  namespace LinuxSampler { namespace gig {
273      }      }
274    
275      void Engine::ClearEventLists() {      void Engine::ClearEventLists() {
276          pEvents->clear();          pGlobalEvents->clear();
         pCCEvents->clear();  
         for (uint i = 0; i < Event::destination_count; i++) {  
             pSynthesisEvents[i]->clear();  
         }  
277      }      }
278    
279      /**      /**
280       * Copy all events from the given input queue buffer to the engine's       * Copy all events from the engine's global input queue buffer to the
281       * internal event list. This will be done at the beginning of each audio       * engine's internal event list. This will be done at the beginning of
282       * cycle (that is each RenderAudio() call) to get all events which have       * each audio cycle (that is each RenderAudio() call) to distinguish
283       * to be processed in the current audio cycle. Each EngineChannel has       * all global events which have to be processed in the current audio
284       * it's own input event queue for the common channel specific events       * cycle. These events are usually just SysEx messages. Every
285       * (like NoteOn, NoteOff and ControlChange events). Beside that, the       * EngineChannel has it's own input event queue buffer and event list
286       * engine also has a input event queue for global events (usually SysEx       * to handle common events like NoteOn, NoteOff and ControlChange
287       * message).       * events.
288       *       *
289       * @param pEventQueue - input event buffer to read from       * @param Samples - number of sample points to be processed in the
290       * @param Samples     - number of sample points to be processed in the       *                  current audio cycle
      *                      current audio cycle  
291       */       */
292      void Engine::ImportEvents(RingBuffer<Event>* pEventQueue, uint Samples) {      void Engine::ImportEvents(uint Samples) {
293          RingBuffer<Event>::NonVolatileReader eventQueueReader = pEventQueue->get_non_volatile_reader();          RingBuffer<Event>::NonVolatileReader eventQueueReader = pEventQueue->get_non_volatile_reader();
294          Event* pEvent;          Event* pEvent;
295          while (true) {          while (true) {
# Line 313  namespace LinuxSampler { namespace gig { Line 303  namespace LinuxSampler { namespace gig {
303                  break;                  break;
304              }              }
305              // copy event to internal event list              // copy event to internal event list
306              if (pEvents->poolIsEmpty()) {              if (pGlobalEvents->poolIsEmpty()) {
307                  dmsg(1,("Event pool emtpy!\n"));                  dmsg(1,("Event pool emtpy!\n"));
308                  break;                  break;
309              }              }
310              *pEvents->allocAppend() = *pEvent;              *pGlobalEvents->allocAppend() = *pEvent;
311          }          }
312          eventQueueReader.free(); // free all copied events from input queue          eventQueueReader.free(); // free all copied events from input queue
313      }      }
# Line 344  namespace LinuxSampler { namespace gig { Line 334  namespace LinuxSampler { namespace gig {
334          // 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)
335          pEventGenerator->UpdateFragmentTime(Samples);          pEventGenerator->UpdateFragmentTime(Samples);
336    
         // empty the engine's event lists for the new fragment  
         ClearEventLists();  
   
337          // 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
338          // (these are usually just SysEx messages)          // (these are usually just SysEx messages)
339          ImportEvents(this->pEventQueue, Samples);          ImportEvents(Samples);
340    
341          // process engine global events (these are currently only MIDI System Exclusive messages)          // process engine global events (these are currently only MIDI System Exclusive messages)
342          {          {
343              RTList<Event>::Iterator itEvent = pEvents->first();              RTList<Event>::Iterator itEvent = pGlobalEvents->first();
344              RTList<Event>::Iterator end     = pEvents->end();              RTList<Event>::Iterator end     = pGlobalEvents->end();
345              for (; itEvent != end; ++itEvent) {              for (; itEvent != end; ++itEvent) {
346                  switch (itEvent->Type) {                  switch (itEvent->Type) {
347                      case Event::type_sysex:                      case Event::type_sysex:
# Line 365  namespace LinuxSampler { namespace gig { Line 352  namespace LinuxSampler { namespace gig {
352              }              }
353          }          }
354    
355            // We only allow a maximum of MAX_AUDIO_VOICES voices to be stolen
356            // in each audio fragment. All subsequent request for spawning new
357            // voices in the same audio fragment will be ignored.
358            VoiceTheftsLeft = MAX_AUDIO_VOICES;
359    
360          // reset internal voice counter (just for statistic of active voices)          // reset internal voice counter (just for statistic of active voices)
361          ActiveVoiceCountTemp = 0;          ActiveVoiceCountTemp = 0;
362    
363          // render audio for all engine channels  
364          // TODO: should we make voice stealing engine globally? unfortunately this would mean other disadvantages so I left voice stealing in the engine channel space for now          // render audio on all engine channels
365          {          for (int i = 0; i < engineChannels.size(); i++) {
366              std::list<EngineChannel*>::iterator itChannel = engineChannels.begin();              if (!engineChannels[i]->pInstrument) continue; // ignore if no instrument loaded
367              std::list<EngineChannel*>::iterator end       = engineChannels.end();              // handle events on that engine channel
368              for (; itChannel != end; itChannel++) {              ProcessEvents(engineChannels[i], Samples);
369                  if (!(*itChannel)->pInstrument) continue; // ignore if no instrument loaded              // render all 'normal', active voices
370                  RenderAudio(*itChannel, Samples);              RenderActiveVoices(engineChannels[i], Samples);
371              }          }
372    
373            // now that all ordinary voices on ALL engine channels are rendered, render new stolen voices
374            RenderStolenVoices(Samples);
375    
376            // handle cleanup on all engine channels for the next audio fragment
377            for (int i = 0; i < engineChannels.size(); i++) {
378                if (!engineChannels[i]->pInstrument) continue; // ignore if no instrument loaded
379                PostProcess(engineChannels[i]);
380          }          }
381    
382    
383            // empty the engine's event list for the next audio fragment
384            ClearEventLists();
385    
386            // reset voice stealing for the next audio fragment
387            pVoiceStealingQueue->clear();
388            itLastStolenVoice  = RTList<Voice>::Iterator();
389            iuiLastStolenKey   = RTList<uint>::Iterator();
390            pLastStolenChannel = NULL;
391    
392          // just some statistics about this engine instance          // just some statistics about this engine instance
393          ActiveVoiceCount = ActiveVoiceCountTemp;          ActiveVoiceCount = ActiveVoiceCountTemp;
394          if (ActiveVoiceCount > ActiveVoiceCountMax) ActiveVoiceCountMax = ActiveVoiceCount;          if (ActiveVoiceCount > ActiveVoiceCountMax) ActiveVoiceCountMax = ActiveVoiceCount;
# Line 386  namespace LinuxSampler { namespace gig { Line 396  namespace LinuxSampler { namespace gig {
396          return 0;          return 0;
397      }      }
398    
399      void Engine::RenderAudio(EngineChannel* pEngineChannel, uint Samples) {      void Engine::ProcessEvents(EngineChannel* pEngineChannel, uint Samples) {
         // empty the engine's event lists for the new fragment  
         ClearEventLists();  
         // empty the engine channel's, MIDI key specific event lists  
         {  
             RTList<uint>::Iterator iuiKey = pEngineChannel->pActiveKeys->first();  
             RTList<uint>::Iterator end    = pEngineChannel->pActiveKeys->end();  
             for(; iuiKey != end; ++iuiKey) {  
                 pEngineChannel->pMIDIKeyInfo[*iuiKey].pEvents->clear(); // free all events on the key  
             }  
         }  
   
   
400          // 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
401          // (these are the common events like NoteOn, NoteOff, ControlChange, etc.)          // (these are the common events like NoteOn, NoteOff, ControlChange, etc.)
402          ImportEvents(pEngineChannel->pEventQueue, Samples);          pEngineChannel->ImportEvents(Samples);
   
403    
404          // process events          // process events
405          {          {
406              RTList<Event>::Iterator itEvent = pEvents->first();              RTList<Event>::Iterator itEvent = pEngineChannel->pEvents->first();
407              RTList<Event>::Iterator end     = pEvents->end();              RTList<Event>::Iterator end     = pEngineChannel->pEvents->end();
408              for (; itEvent != end; ++itEvent) {              for (; itEvent != end; ++itEvent) {
409                  switch (itEvent->Type) {                  switch (itEvent->Type) {
410                      case Event::type_note_on:                      case Event::type_note_on:
# Line 429  namespace LinuxSampler { namespace gig { Line 426  namespace LinuxSampler { namespace gig {
426                  }                  }
427              }              }
428          }          }
429        }
430    
431        void Engine::RenderActiveVoices(EngineChannel* pEngineChannel, uint Samples) {
432            RTList<uint>::Iterator iuiKey = pEngineChannel->pActiveKeys->first();
433            RTList<uint>::Iterator end    = pEngineChannel->pActiveKeys->end();
434            while (iuiKey != end) { // iterate through all active keys
435                midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[*iuiKey];
436                ++iuiKey;
437    
438          // render audio from all active voices              RTList<Voice>::Iterator itVoice     = pKey->pActiveVoices->first();
439          {              RTList<Voice>::Iterator itVoicesEnd = pKey->pActiveVoices->end();
440              RTList<uint>::Iterator iuiKey = pEngineChannel->pActiveKeys->first();              for (; itVoice != itVoicesEnd; ++itVoice) { // iterate through all voices on this key
441              RTList<uint>::Iterator end    = pEngineChannel->pActiveKeys->end();                  // now render current voice
442              while (iuiKey != end) { // iterate through all active keys                  itVoice->Render(Samples);
443                  midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[*iuiKey];                  if (itVoice->IsActive()) ActiveVoiceCountTemp++; // still active
444                  ++iuiKey;                  else { // voice reached end, is now inactive
445                        FreeVoice(pEngineChannel, itVoice); // remove voice from the list of active voices
                 RTList<Voice>::Iterator itVoice     = pKey->pActiveVoices->first();  
                 RTList<Voice>::Iterator itVoicesEnd = pKey->pActiveVoices->end();  
                 for (; itVoice != itVoicesEnd; ++itVoice) { // iterate through all voices on this key  
                     // now render current voice  
                     itVoice->Render(Samples);  
                     if (itVoice->IsActive()) ActiveVoiceCountTemp++; // still active  
                     else { // voice reached end, is now inactive  
                         FreeVoice(pEngineChannel, itVoice); // remove voice from the list of active voices  
                     }  
446                  }                  }
447              }              }
448          }          }
449        }
450    
451        void Engine::RenderStolenVoices(uint Samples) {
452          // now render all postponed voices from voice stealing          RTList<Event>::Iterator itVoiceStealEvent = pVoiceStealingQueue->first();
453          {          RTList<Event>::Iterator end               = pVoiceStealingQueue->end();
454              RTList<Event>::Iterator itVoiceStealEvent = pVoiceStealingQueue->first();          for (; itVoiceStealEvent != end; ++itVoiceStealEvent) {
455              RTList<Event>::Iterator end               = pVoiceStealingQueue->end();              EngineChannel* pEngineChannel = (EngineChannel*) itVoiceStealEvent->pEngineChannel;
456              for (; itVoiceStealEvent != end; ++itVoiceStealEvent) {              Pool<Voice>::Iterator itNewVoice =
457                  Pool<Voice>::Iterator itNewVoice =                  LaunchVoice(pEngineChannel, itVoiceStealEvent, itVoiceStealEvent->Param.Note.Layer, itVoiceStealEvent->Param.Note.ReleaseTrigger, false);
458                      LaunchVoice(pEngineChannel, itVoiceStealEvent, itVoiceStealEvent->Param.Note.Layer, itVoiceStealEvent->Param.Note.ReleaseTrigger, false);              if (itNewVoice) {
459                  if (itNewVoice) {                  itNewVoice->Render(Samples);
460                      for (; itNewVoice; itNewVoice = itNewVoice->itChildVoice) {                  if (itNewVoice->IsActive()) ActiveVoiceCountTemp++; // still active
461                          itNewVoice->Render(Samples);                  else { // voice reached end, is now inactive
462                          if (itNewVoice->IsActive()) ActiveVoiceCountTemp++; // still active                      FreeVoice(pEngineChannel, itNewVoice); // remove voice from the list of active voices
                         else { // voice reached end, is now inactive  
                             FreeVoice(pEngineChannel, itNewVoice); // remove voice from the list of active voices  
                         }  
                     }  
463                  }                  }
                 else dmsg(1,("gig::Engine: ERROR, voice stealing didn't work out!\n"));  
464              }              }
465                else dmsg(1,("gig::Engine: ERROR, voice stealing didn't work out!\n"));
466          }          }
467          // reset voice stealing for the new fragment      }
         pVoiceStealingQueue->clear();  
         pEngineChannel->itLastStolenVoice = RTList<Voice>::Iterator();  
         pEngineChannel->iuiLastStolenKey  = RTList<uint>::Iterator();  
   
468    
469        void Engine::PostProcess(EngineChannel* pEngineChannel) {
470          // free all keys which have no active voices left          // free all keys which have no active voices left
471          {          {
472              RTList<uint>::Iterator iuiKey = pEngineChannel->pActiveKeys->first();              RTList<uint>::Iterator iuiKey = pEngineChannel->pActiveKeys->first();
# Line 499  namespace LinuxSampler { namespace gig { Line 488  namespace LinuxSampler { namespace gig {
488                  #endif // DEVMODE                  #endif // DEVMODE
489              }              }
490          }          }
491    
492            // empty the engine channel's own event lists
493            pEngineChannel->ClearEventLists();
494      }      }
495    
496      /**      /**
# Line 568  namespace LinuxSampler { namespace gig { Line 560  namespace LinuxSampler { namespace gig {
560          // move note on event to the key's own event list          // move note on event to the key's own event list
561          RTList<Event>::Iterator itNoteOnEventOnKeyList = itNoteOnEvent.moveToEndOf(pKey->pEvents);          RTList<Event>::Iterator itNoteOnEventOnKeyList = itNoteOnEvent.moveToEndOf(pKey->pEvents);
562    
563          // allocate and trigger a new voice for the key          // allocate and trigger new voice(s) for the key
564          LaunchVoice(pEngineChannel, itNoteOnEventOnKeyList, 0, false, true);          {
565                // first, get total amount of required voices (dependant on amount of layers)
566                ::gig::Region* pRegion = pEngineChannel->pInstrument->GetRegion(itNoteOnEventOnKeyList->Param.Note.Key);
567                if (pRegion) {
568                    int voicesRequired = pRegion->Layers;
569                    // now launch the required amount of voices
570                    for (int i = 0; i < voicesRequired; i++)
571                        LaunchVoice(pEngineChannel, itNoteOnEventOnKeyList, i, false, true);
572                }
573            }
574    
575          pKey->RoundRobinIndex++;          pKey->RoundRobinIndex++;
576      }      }
# Line 598  namespace LinuxSampler { namespace gig { Line 599  namespace LinuxSampler { namespace gig {
599    
600          // spawn release triggered voice(s) if needed          // spawn release triggered voice(s) if needed
601          if (pKey->ReleaseTrigger) {          if (pKey->ReleaseTrigger) {
602              LaunchVoice(pEngineChannel, itNoteOffEventOnKeyList, 0, true, false); //FIXME: for the moment we don't perform voice stealing for release triggered samples              // first, get total amount of required voices (dependant on amount of layers)
603                ::gig::Region* pRegion = pEngineChannel->pInstrument->GetRegion(itNoteOffEventOnKeyList->Param.Note.Key);
604                if (pRegion) {
605                    int voicesRequired = pRegion->Layers;
606                    // now launch the required amount of voices
607                    for (int i = 0; i < voicesRequired; i++)
608                        LaunchVoice(pEngineChannel, itNoteOffEventOnKeyList, i, true, false); //FIXME: for the moment we don't perform voice stealing for release triggered samples
609                }
610              pKey->ReleaseTrigger = false;              pKey->ReleaseTrigger = false;
611          }          }
612      }      }
# Line 612  namespace LinuxSampler { namespace gig { Line 620  namespace LinuxSampler { namespace gig {
620       */       */
621      void Engine::ProcessPitchbend(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itPitchbendEvent) {      void Engine::ProcessPitchbend(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itPitchbendEvent) {
622          pEngineChannel->Pitch = itPitchbendEvent->Param.Pitch.Pitch; // store current pitch value          pEngineChannel->Pitch = itPitchbendEvent->Param.Pitch.Pitch; // store current pitch value
623          itPitchbendEvent.moveToEndOf(pSynthesisEvents[Event::destination_vco]);          itPitchbendEvent.moveToEndOf(pEngineChannel->pSynthesisEvents[Event::destination_vco]);
624      }      }
625    
626      /**      /**
# Line 671  namespace LinuxSampler { namespace gig { Line 679  namespace LinuxSampler { namespace gig {
679              }              }
680          }          }
681          else if (VoiceStealing) {          else if (VoiceStealing) {
682              // first, get total amount of required voices (dependant on amount of layers)  
683              ::gig::Region* pRegion = pEngineChannel->pInstrument->GetRegion(itNoteOnEvent->Param.Note.Key);              // try to steal one voice
684              if (!pRegion) return Pool<Voice>::Iterator(); // nothing defined for this MIDI key, so no voice needed              StealVoice(pEngineChannel, itNoteOnEvent);
             int voicesRequired = pRegion->Layers;  
   
             // now steal the (remaining) amount of voices  
             for (int i = iLayer; i < voicesRequired; i++)  
                 StealVoice(pEngineChannel, itNoteOnEvent);  
685    
686              // 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
687              RTList<Event>::Iterator itStealEvent = pVoiceStealingQueue->allocAppend();              RTList<Event>::Iterator itStealEvent = pVoiceStealingQueue->allocAppend();
# Line 703  namespace LinuxSampler { namespace gig { Line 706  namespace LinuxSampler { namespace gig {
706       *  @param itNoteOnEvent - key, velocity and time stamp of the event       *  @param itNoteOnEvent - key, velocity and time stamp of the event
707       */       */
708      void Engine::StealVoice(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itNoteOnEvent) {      void Engine::StealVoice(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itNoteOnEvent) {
709            if (!VoiceTheftsLeft) {
710                dmsg(1,("Max. voice thefts per audio fragment reached (you may raise MAX_AUDIO_VOICES).\n"));
711                return;
712            }
713          if (!pEventPool->poolIsEmpty()) {          if (!pEventPool->poolIsEmpty()) {
714    
715              RTList<uint>::Iterator  iuiOldestKey;              RTList<Voice>::Iterator itSelectedVoice;
             RTList<Voice>::Iterator itOldestVoice;  
716    
717              // Select one voice for voice stealing              // Select one voice for voice stealing
718              switch (VOICE_STEAL_ALGORITHM) {              switch (VOICE_STEAL_ALGORITHM) {
# Line 715  namespace LinuxSampler { namespace gig { Line 721  namespace LinuxSampler { namespace gig {
721                  // voice should be spawned, if there is no voice on that                  // voice should be spawned, if there is no voice on that
722                  // key, or no voice left to kill there, then procceed with                  // key, or no voice left to kill there, then procceed with
723                  // 'oldestkey' algorithm                  // 'oldestkey' algorithm
724                  case voice_steal_algo_keymask: {                  case voice_steal_algo_oldestvoiceonkey: {
725                      midi_key_info_t* pOldestKey = &pEngineChannel->pMIDIKeyInfo[itNoteOnEvent->Param.Note.Key];                  #if 0 // FIXME: broken
726                      if (pEngineChannel->itLastStolenVoice) {                      midi_key_info_t* pSelectedKey = &pEngineChannel->pMIDIKeyInfo[itNoteOnEvent->Param.Note.Key];
727                          itOldestVoice = pEngineChannel->itLastStolenVoice;                      if (this->itLastStolenVoice) {
728                          ++itOldestVoice;                          itSelectedVoice = this->itLastStolenVoice;
729                            ++itSelectedVoice;
730                      }                      }
731                      else { // no voice stolen in this audio fragment cycle yet                      else { // no voice stolen in this audio fragment cycle yet
732                          itOldestVoice = pOldestKey->pActiveVoices->first();                          itSelectedVoice = pSelectedKey->pActiveVoices->first();
733                      }                      }
734                      if (itOldestVoice) {                      if (itSelectedVoice) {
735                          iuiOldestKey = pOldestKey->itSelf;                          iuiSelectedKey = pSelectedKey->itSelf;
736                          break; // selection succeeded                          break; // selection succeeded
737                      }                      }
738                    #endif
739                  } // no break - intentional !                  } // no break - intentional !
740    
741                  // try to pick the oldest voice on the oldest active key                  // try to pick the oldest voice on the oldest active key
742                  // (caution: must stay after 'keymask' algorithm !)                  // (caution: must stay after 'oldestvoiceonkey' algorithm !)
743                  case voice_steal_algo_oldestkey: {                  case voice_steal_algo_oldestkey: {
744                      if (pEngineChannel->itLastStolenVoice) {                      if (this->itLastStolenVoice) {
745                          midi_key_info_t* pOldestKey = &pEngineChannel->pMIDIKeyInfo[*pEngineChannel->iuiLastStolenKey];                          itSelectedVoice = this->itLastStolenVoice;
746                          itOldestVoice = pEngineChannel->itLastStolenVoice;                          ++itSelectedVoice;
747                          ++itOldestVoice;                          if (itSelectedVoice) break; // selection succeeded
748                          if (!itOldestVoice) {                          RTList<uint>::Iterator iuiSelectedKey = this->iuiLastStolenKey;
749                              iuiOldestKey = pEngineChannel->iuiLastStolenKey;                          ++iuiSelectedKey;
750                              ++iuiOldestKey;                          if (iuiSelectedKey) {
751                              if (iuiOldestKey) {                              this->iuiLastStolenKey = iuiSelectedKey;
752                                  midi_key_info_t* pOldestKey = &pEngineChannel->pMIDIKeyInfo[*iuiOldestKey];                              midi_key_info_t* pSelectedKey = &pEngineChannel->pMIDIKeyInfo[*iuiSelectedKey];
753                                  itOldestVoice = pOldestKey->pActiveVoices->first();                              itSelectedVoice = pSelectedKey->pActiveVoices->first();
754                              }                              break; // selection succeeded
                             else {  
                                 dmsg(1,("gig::Engine: Warning, too less voices, even for voice stealing! - Better recompile with higher MAX_AUDIO_VOICES.\n"));  
                                 return;  
                             }  
755                          }                          }
                         else iuiOldestKey = pEngineChannel->iuiLastStolenKey;  
                     }  
                     else { // no voice stolen in this audio fragment cycle yet  
                         iuiOldestKey = pEngineChannel->pActiveKeys->first();  
                         midi_key_info_t* pOldestKey = &pEngineChannel->pMIDIKeyInfo[*iuiOldestKey];  
                         itOldestVoice = pOldestKey->pActiveVoices->first();  
756                      }                      }
757                      break;                      break;
758                  }                  }
# Line 767  namespace LinuxSampler { namespace gig { Line 765  namespace LinuxSampler { namespace gig {
765                  }                  }
766              }              }
767    
768                // steal oldest voice on the oldest key from this or any other engine channel
769                if (!itSelectedVoice) {
770                    EngineChannel* pSelectedChannel = (pLastStolenChannel) ? pLastStolenChannel : pEngineChannel;
771                    int iChannelIndex = pSelectedChannel->iEngineIndexSelf;
772                    while (true) {
773                        RTList<uint>::Iterator iuiSelectedKey = pSelectedChannel->pActiveKeys->first();
774                        if (iuiSelectedKey) {
775                            midi_key_info_t* pSelectedKey = &pSelectedChannel->pMIDIKeyInfo[*iuiSelectedKey];
776                            itSelectedVoice    = pSelectedKey->pActiveVoices->first();
777                            iuiLastStolenKey   = iuiSelectedKey;
778                            pLastStolenChannel = pSelectedChannel;
779                            break; // selection succeeded
780                        }
781                        iChannelIndex    = (iChannelIndex + 1) % engineChannels.size();
782                        pSelectedChannel =  engineChannels[iChannelIndex];
783                    }
784                }
785    
786              //FIXME: can be removed, just a sanity check for debugging              //FIXME: can be removed, just a sanity check for debugging
787              if (!itOldestVoice->IsActive()) dmsg(1,("gig::Engine: ERROR, tried to steal a voice which was not active !!!\n"));              if (!itSelectedVoice->IsActive()) dmsg(1,("gig::Engine: ERROR, tried to steal a voice which was not active !!!\n"));
788    
789              // now kill the selected voice              // now kill the selected voice
790              itOldestVoice->Kill(itNoteOnEvent);              itSelectedVoice->Kill(itNoteOnEvent);
791              // remember which voice on which key we stole, so we can simply proceed for the next voice stealing  
792              pEngineChannel->itLastStolenVoice = itOldestVoice;              // remember which voice we stole, so we can simply proceed for the next voice stealing
793              pEngineChannel->iuiLastStolenKey = iuiOldestKey;              itLastStolenVoice = itSelectedVoice;
794    
795                --VoiceTheftsLeft;
796          }          }
797          else dmsg(1,("Event pool emtpy!\n"));          else dmsg(1,("Event pool emtpy!\n"));
798      }      }
# Line 895  namespace LinuxSampler { namespace gig { Line 913  namespace LinuxSampler { namespace gig {
913          pEngineChannel->ControllerTable[itControlChangeEvent->Param.CC.Controller] = itControlChangeEvent->Param.CC.Value;          pEngineChannel->ControllerTable[itControlChangeEvent->Param.CC.Controller] = itControlChangeEvent->Param.CC.Value;
914    
915          // move event from the unsorted event list to the control change event list          // move event from the unsorted event list to the control change event list
916          itControlChangeEvent.moveToEndOf(pCCEvents);          itControlChangeEvent.moveToEndOf(pEngineChannel->pCCEvents);
917      }      }
918    
919      /**      /**
# Line 1033  namespace LinuxSampler { namespace gig { Line 1051  namespace LinuxSampler { namespace gig {
1051      }      }
1052    
1053      String Engine::Version() {      String Engine::Version() {
1054          String s = "$Revision: 1.30 $";          String s = "$Revision: 1.31 $";
1055          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
1056      }      }
1057    

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