/[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 411 by schoenebeck, Sat Feb 26 02:01:14 2005 UTC revision 473 by schoenebeck, Thu Mar 17 20:13:08 2005 UTC
# Line 25  Line 25 
25  #include "DiskThread.h"  #include "DiskThread.h"
26  #include "Voice.h"  #include "Voice.h"
27  #include "EGADSR.h"  #include "EGADSR.h"
28    #include "../EngineFactory.h"
29    
30  #include "Engine.h"  #include "Engine.h"
31    
# Line 40  namespace LinuxSampler { namespace gig { Line 41  namespace LinuxSampler { namespace gig {
41    
42      std::map<AudioOutputDevice*,Engine*> Engine::engines;      std::map<AudioOutputDevice*,Engine*> Engine::engines;
43    
44        /**
45         * Get a gig::Engine object for the given gig::EngineChannel and the
46         * given AudioOutputDevice. All engine channels which are connected to
47         * the same audio output device will use the same engine instance. This
48         * method will be called by a gig::EngineChannel whenever it's
49         * connecting to a audio output device.
50         *
51         * @param pChannel - engine channel which acquires an engine object
52         * @param pDevice  - the audio output device \a pChannel is connected to
53         */
54      Engine* Engine::AcquireEngine(LinuxSampler::gig::EngineChannel* pChannel, AudioOutputDevice* pDevice) {      Engine* Engine::AcquireEngine(LinuxSampler::gig::EngineChannel* pChannel, AudioOutputDevice* pDevice) {
55          Engine* pEngine;          Engine* pEngine = NULL;
56            // check if there's already an engine for the given audio output device
57          if (engines.count(pDevice)) {          if (engines.count(pDevice)) {
58                dmsg(4,("Using existing gig::Engine.\n"));
59              pEngine = engines[pDevice];              pEngine = engines[pDevice];
60          } else {          } else { // create a new engine (and disk thread) instance for the given audio output device
61              pEngine = new Engine;              dmsg(4,("Creating new gig::Engine.\n"));
62                pEngine = (Engine*) EngineFactory::Create("gig");
63              pEngine->Connect(pDevice);              pEngine->Connect(pDevice);
64                engines[pDevice] = pEngine;
65          }          }
66          pEngine->samplerChannels.push_back(pChannel);          // register engine channel to the engine instance
67            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()));
71          return pEngine;          return pEngine;
72      }      }
73    
74        /**
75         * Once an engine channel is disconnected from an audio output device,
76         * it wil immediately call this method to unregister itself from the
77         * engine instance and if that engine instance is not used by any other
78         * engine channel anymore, then that engine instance will be destroyed.
79         *
80         * @param pChannel - engine channel which wants to disconnect from it's
81         *                   engine instance
82         * @param pDevice  - audio output device \a pChannel was connected to
83         */
84      void Engine::FreeEngine(LinuxSampler::gig::EngineChannel* pChannel, AudioOutputDevice* pDevice) {      void Engine::FreeEngine(LinuxSampler::gig::EngineChannel* pChannel, AudioOutputDevice* pDevice) {
85            dmsg(4,("Disconnecting EngineChannel from gig::Engine.\n"));
86          Engine* pEngine = engines[pDevice];          Engine* pEngine = engines[pDevice];
87          pEngine->samplerChannels.remove(pChannel);          // unregister EngineChannel from the Engine instance
88          if (pEngine->samplerChannels.empty()) delete pEngine;          pEngine->engineChannels.remove(pChannel);
89            // if the used Engine instance is not used anymore, then destroy it
90            if (pEngine->engineChannels.empty()) {
91                pDevice->Disconnect(pEngine);
92                engines.erase(pDevice);
93                delete pEngine;
94                dmsg(4,("Destroying gig::Engine.\n"));
95            }
96            else dmsg(4,("This gig::Engine has now %d EngineChannels.\n",pEngine->engineChannels.size()));
97      }      }
98    
99        /**
100         * Constructor
101         */
102      Engine::Engine() {      Engine::Engine() {
103          pAudioOutputDevice = NULL;          pAudioOutputDevice = NULL;
104          pDiskThread        = NULL;          pDiskThread        = NULL;
# Line 65  namespace LinuxSampler { namespace gig { Line 106  namespace LinuxSampler { namespace gig {
106          pSysexBuffer       = new RingBuffer<uint8_t>(SYSEX_BUFFER_SIZE, 0);          pSysexBuffer       = new RingBuffer<uint8_t>(SYSEX_BUFFER_SIZE, 0);
107          pEventQueue        = new RingBuffer<Event>(MAX_EVENTS_PER_FRAGMENT, 0);          pEventQueue        = new RingBuffer<Event>(MAX_EVENTS_PER_FRAGMENT, 0);
108          pEventPool         = new Pool<Event>(MAX_EVENTS_PER_FRAGMENT);          pEventPool         = new Pool<Event>(MAX_EVENTS_PER_FRAGMENT);
109          pVoicePool         = new Pool<Voice>(MAX_AUDIO_VOICES);                  pVoicePool         = new Pool<Voice>(MAX_AUDIO_VOICES);
110          pVoiceStealingQueue = new RTList<Event>(pEventPool);          pVoiceStealingQueue = new RTList<Event>(pEventPool);
111          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);  
         }  
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()) {
113              iterVoice->SetEngine(this);              iterVoice->SetEngine(this);
114          }          }
# Line 85  namespace LinuxSampler { namespace gig { Line 121  namespace LinuxSampler { namespace gig {
121          ResetInternal();          ResetInternal();
122      }      }
123    
124        /**
125         * Destructor
126         */
127      Engine::~Engine() {      Engine::~Engine() {
128          if (pDiskThread) {          if (pDiskThread) {
129              dmsg(1,("Stopping disk thread..."));              dmsg(1,("Stopping disk thread..."));
# Line 92  namespace LinuxSampler { namespace gig { Line 131  namespace LinuxSampler { namespace gig {
131              delete pDiskThread;              delete pDiskThread;
132              dmsg(1,("OK\n"));              dmsg(1,("OK\n"));
133          }          }
         for (uint i = 0; i < Event::destination_count; i++) {  
             if (pSynthesisEvents[i]) delete pSynthesisEvents[i];  
         }  
         if (pEvents)     delete pEvents;  
         if (pCCEvents)   delete pCCEvents;  
134          if (pEventQueue) delete pEventQueue;          if (pEventQueue) delete pEventQueue;
135          if (pEventPool)  delete pEventPool;          if (pEventPool)  delete pEventPool;
136          if (pVoicePool) {          if (pVoicePool) {
# Line 109  namespace LinuxSampler { namespace gig { Line 143  namespace LinuxSampler { namespace gig {
143          if (pSynthesisParameters[0]) free(pSynthesisParameters[0]);          if (pSynthesisParameters[0]) free(pSynthesisParameters[0]);
144          if (pVoiceStealingQueue) delete pVoiceStealingQueue;          if (pVoiceStealingQueue) delete pVoiceStealingQueue;
145          if (pSysexBuffer) delete pSysexBuffer;          if (pSysexBuffer) delete pSysexBuffer;
146            EngineFactory::Destroy(this);
147      }      }
148    
149      void Engine::Enable() {      void Engine::Enable() {
# Line 148  namespace LinuxSampler { namespace gig { Line 183  namespace LinuxSampler { namespace gig {
183          ActiveVoiceCountMax = 0;          ActiveVoiceCountMax = 0;
184    
185          // reset voice stealing parameters          // reset voice stealing parameters
         itLastStolenVoice = RTList<Voice>::Iterator();  
         iuiLastStolenKey  = RTList<uint>::Iterator();  
186          pVoiceStealingQueue->clear();          pVoiceStealingQueue->clear();
187            itLastStolenVoice  = RTList<Voice>::Iterator();
188            iuiLastStolenKey   = RTList<uint>::Iterator();
189            pLastStolenChannel = NULL;
190    
191          // reset to normal chromatic scale (means equal temper)          // reset to normal chromatic scale (means equal temper)
192          memset(&ScaleTuning[0], 0x00, 12);          memset(&ScaleTuning[0], 0x00, 12);
# Line 168  namespace LinuxSampler { namespace gig { Line 204  namespace LinuxSampler { namespace gig {
204          pEventQueue->init();          pEventQueue->init();
205      }      }
206    
207        /**
208         * Connect this engine instance with the given audio output device.
209         * This method will be called when an Engine instance is created.
210         * All of the engine's data structures which are dependant to the used
211         * audio output device / driver will be (re)allocated and / or
212         * adjusted appropriately.
213         *
214         * @param pAudioOut - audio output device to connect to
215         */
216      void Engine::Connect(AudioOutputDevice* pAudioOut) {      void Engine::Connect(AudioOutputDevice* pAudioOut) {
217          pAudioOutputDevice = pAudioOut;          pAudioOutputDevice = pAudioOut;
218    
# Line 181  namespace LinuxSampler { namespace gig { Line 226  namespace LinuxSampler { namespace gig {
226              String msg = "Audio output device unable to provide 2 audio channels, cause: " + e.Message();              String msg = "Audio output device unable to provide 2 audio channels, cause: " + e.Message();
227              throw LinuxSamplerException(msg);              throw LinuxSamplerException(msg);
228          }          }
229            
230          this->MaxSamplesPerCycle      = pAudioOutputDevice->MaxSamplesPerCycle();          this->MaxSamplesPerCycle = pAudioOutputDevice->MaxSamplesPerCycle();
231          this->SampleRate              = pAudioOutputDevice->SampleRate();          this->SampleRate         = pAudioOutputDevice->SampleRate();
232    
233          // FIXME: audio drivers with varying fragment sizes might be a problem here          // FIXME: audio drivers with varying fragment sizes might be a problem here
234          MaxFadeOutPos = MaxSamplesPerCycle - int(double(SampleRate) * EG_MIN_RELEASE_TIME) - 1;          MaxFadeOutPos = MaxSamplesPerCycle - int(double(SampleRate) * EG_MIN_RELEASE_TIME) - 1;
# Line 243  namespace LinuxSampler { namespace gig { Line 288  namespace LinuxSampler { namespace gig {
288      }      }
289    
290      /**      /**
291         * Clear all engine global event lists.
292         */
293        void Engine::ClearEventLists() {
294            pGlobalEvents->clear();
295        }
296    
297        /**
298         * Copy all events from the engine's global input queue buffer to the
299         * engine's internal event list. This will be done at the beginning of
300         * each audio cycle (that is each RenderAudio() call) to distinguish
301         * all global events which have to be processed in the current audio
302         * cycle. These events are usually just SysEx messages. Every
303         * EngineChannel has it's own input event queue buffer and event list
304         * to handle common events like NoteOn, NoteOff and ControlChange
305         * events.
306         *
307         * @param Samples - number of sample points to be processed in the
308         *                  current audio cycle
309         */
310        void Engine::ImportEvents(uint Samples) {
311            RingBuffer<Event>::NonVolatileReader eventQueueReader = pEventQueue->get_non_volatile_reader();
312            Event* pEvent;
313            while (true) {
314                // get next event from input event queue
315                if (!(pEvent = eventQueueReader.pop())) break;
316                // if younger event reached, ignore that and all subsequent ones for now
317                if (pEvent->FragmentPos() >= Samples) {
318                    eventQueueReader--;
319                    dmsg(2,("Younger Event, pos=%d ,Samples=%d!\n",pEvent->FragmentPos(),Samples));
320                    pEvent->ResetFragmentPos();
321                    break;
322                }
323                // copy event to internal event list
324                if (pGlobalEvents->poolIsEmpty()) {
325                    dmsg(1,("Event pool emtpy!\n"));
326                    break;
327                }
328                *pGlobalEvents->allocAppend() = *pEvent;
329            }
330            eventQueueReader.free(); // free all copied events from input queue
331        }
332    
333        /**
334       *  Let this engine proceed to render the given amount of sample points. The       *  Let this engine proceed to render the given amount of sample points. The
335       *  calculated audio data of all voices of this engine will be placed into       *  calculated audio data of all voices of this engine will be placed into
336       *  the engine's audio sum buffer which has to be copied and eventually be       *  the engine's audio sum buffer which has to be copied and eventually be
337       *  converted to the appropriate value range by the audio output class (e.g.       *  converted to the appropriate value range by the audio output class (e.g.
338       *  AlsaIO or JackIO) right after.       *  AlsaIO or JackIO) right after.
339       *       *
      *  @param pEngineChannel - the engine's channel to be rendered  
340       *  @param Samples - number of sample points to be rendered       *  @param Samples - number of sample points to be rendered
341       *  @returns       0 on success       *  @returns       0 on success
342       */       */
343      int Engine::RenderAudio(LinuxSampler::gig::EngineChannel* pEngineChannel, uint Samples) {      int Engine::RenderAudio(uint Samples) {
344          dmsg(5,("RenderAudio(Samples=%d)\n", Samples));          dmsg(5,("RenderAudio(Samples=%d)\n", Samples));
345    
346          // return if no instrument loaded or engine disabled          // return if engine disabled
347          if (EngineDisabled.Pop()) {          if (EngineDisabled.Pop()) {
348              dmsg(5,("gig::Engine: engine disabled (val=%d)\n",EngineDisabled.GetUnsafe()));              dmsg(5,("gig::Engine: engine disabled (val=%d)\n",EngineDisabled.GetUnsafe()));
349              return 0;              return 0;
350          }          }
         if (!pEngineChannel->pInstrument) {  
             dmsg(5,("gig::Engine: no instrument loaded\n"));  
             return 0;  
         }  
   
351    
352          // 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)
353          pEventGenerator->UpdateFragmentTime(Samples);          pEventGenerator->UpdateFragmentTime(Samples);
354    
355            // get all events from the engine's global input event queue which belong to the current fragment
356            // (these are usually just SysEx messages)
357            ImportEvents(Samples);
358    
359          // empty the event lists for the new fragment          // process engine global events (these are currently only MIDI System Exclusive messages)
         pEvents->clear();  
         pCCEvents->clear();  
         for (uint i = 0; i < Event::destination_count; i++) {  
             pSynthesisEvents[i]->clear();  
         }  
360          {          {
361              RTList<uint>::Iterator iuiKey = pEngineChannel->pActiveKeys->first();              RTList<Event>::Iterator itEvent = pGlobalEvents->first();
362              RTList<uint>::Iterator end    = pEngineChannel->pActiveKeys->end();              RTList<Event>::Iterator end     = pGlobalEvents->end();
363              for(; iuiKey != end; ++iuiKey) {              for (; itEvent != end; ++itEvent) {
364                  pEngineChannel->pMIDIKeyInfo[*iuiKey].pEvents->clear(); // free all events on the key                  switch (itEvent->Type) {
365                        case Event::type_sysex:
366                            dmsg(5,("Engine: Sysex received\n"));
367                            ProcessSysex(itEvent);
368                            break;
369                    }
370              }              }
371          }          }
372    
373            // We only allow a maximum of MAX_AUDIO_VOICES voices to be stolen
374            // in each audio fragment. All subsequent request for spawning new
375            // voices in the same audio fragment will be ignored.
376            VoiceTheftsLeft = MAX_AUDIO_VOICES;
377    
378          // get all events from the input event queue which belong to the current fragment          // reset internal voice counter (just for statistic of active voices)
379          {          ActiveVoiceCountTemp = 0;
380              RingBuffer<Event>::NonVolatileReader eventQueueReader = pEventQueue->get_non_volatile_reader();  
381              Event* pEvent;  
382              while (true) {          // handle events on all engine channels
383                  // get next event from input event queue          for (int i = 0; i < engineChannels.size(); i++) {
384                  if (!(pEvent = eventQueueReader.pop())) break;              if (!engineChannels[i]->pInstrument) continue; // ignore if no instrument loaded
385                  // if younger event reached, ignore that and all subsequent ones for now              ProcessEvents(engineChannels[i], Samples);
386                  if (pEvent->FragmentPos() >= Samples) {          }
387                      eventQueueReader--;  
388                      dmsg(2,("Younger Event, pos=%d ,Samples=%d!\n",pEvent->FragmentPos(),Samples));          // render all 'normal', active voices on all engine channels
389                      pEvent->ResetFragmentPos();          for (int i = 0; i < engineChannels.size(); i++) {
390                      break;              if (!engineChannels[i]->pInstrument) continue; // ignore if no instrument loaded
391                  }              RenderActiveVoices(engineChannels[i], Samples);
                 // copy event to internal event list  
                 if (pEvents->poolIsEmpty()) {  
                     dmsg(1,("Event pool emtpy!\n"));  
                     break;  
                 }  
                 *pEvents->allocAppend() = *pEvent;  
             }  
             eventQueueReader.free(); // free all copied events from input queue  
392          }          }
393    
394            // now that all ordinary voices on ALL engine channels are rendered, render new stolen voices
395            RenderStolenVoices(Samples);
396    
397            // handle cleanup on all engine channels for the next audio fragment
398            for (int i = 0; i < engineChannels.size(); i++) {
399                if (!engineChannels[i]->pInstrument) continue; // ignore if no instrument loaded
400                PostProcess(engineChannels[i]);
401            }
402    
403    
404            // empty the engine's event list for the next audio fragment
405            ClearEventLists();
406    
407            // reset voice stealing for the next audio fragment
408            pVoiceStealingQueue->clear();
409            itLastStolenVoice  = RTList<Voice>::Iterator();
410            iuiLastStolenKey   = RTList<uint>::Iterator();
411            pLastStolenChannel = NULL;
412    
413            // just some statistics about this engine instance
414            ActiveVoiceCount = ActiveVoiceCountTemp;
415            if (ActiveVoiceCount > ActiveVoiceCountMax) ActiveVoiceCountMax = ActiveVoiceCount;
416    
417            return 0;
418        }
419    
420        /**
421         * Dispatch and handle all events in this audio fragment for the given
422         * engine channel.
423         *
424         * @param pEngineChannel - engine channel on which events should be
425         *                         processed
426         * @param Samples        - amount of sample points to be processed in
427         *                         this audio fragment cycle
428         */
429        void Engine::ProcessEvents(EngineChannel* pEngineChannel, uint Samples) {
430            // get all events from the engine channels's input event queue which belong to the current fragment
431            // (these are the common events like NoteOn, NoteOff, ControlChange, etc.)
432            pEngineChannel->ImportEvents(Samples);
433    
434          // process events          // process events
435          {          {
436              RTList<Event>::Iterator itEvent = pEvents->first();              RTList<Event>::Iterator itEvent = pEngineChannel->pEvents->first();
437              RTList<Event>::Iterator end     = pEvents->end();              RTList<Event>::Iterator end     = pEngineChannel->pEvents->end();
438              for (; itEvent != end; ++itEvent) {              for (; itEvent != end; ++itEvent) {
439                  switch (itEvent->Type) {                  switch (itEvent->Type) {
440                      case Event::type_note_on:                      case Event::type_note_on:
441                          dmsg(5,("Engine: Note on received\n"));                          dmsg(5,("Engine: Note on received\n"));
442                          ProcessNoteOn(pEngineChannel, itEvent);                          ProcessNoteOn((EngineChannel*)itEvent->pEngineChannel, itEvent);
443                          break;                          break;
444                      case Event::type_note_off:                      case Event::type_note_off:
445                          dmsg(5,("Engine: Note off received\n"));                          dmsg(5,("Engine: Note off received\n"));
446                          ProcessNoteOff(pEngineChannel, itEvent);                          ProcessNoteOff((EngineChannel*)itEvent->pEngineChannel, itEvent);
447                          break;                          break;
448                      case Event::type_control_change:                      case Event::type_control_change:
449                          dmsg(5,("Engine: MIDI CC received\n"));                          dmsg(5,("Engine: MIDI CC received\n"));
450                          ProcessControlChange(pEngineChannel, itEvent);                          ProcessControlChange((EngineChannel*)itEvent->pEngineChannel, itEvent);
451                          break;                          break;
452                      case Event::type_pitchbend:                      case Event::type_pitchbend:
453                          dmsg(5,("Engine: Pitchbend received\n"));                          dmsg(5,("Engine: Pitchbend received\n"));
454                          ProcessPitchbend(pEngineChannel, itEvent);                          ProcessPitchbend((EngineChannel*)itEvent->pEngineChannel, itEvent);
                         break;  
                     case Event::type_sysex:  
                         dmsg(5,("Engine: Sysex received\n"));  
                         ProcessSysex(itEvent);  
455                          break;                          break;
456                  }                  }
457              }              }
458          }          }
459        }
460    
461        /**
462          int active_voices = 0;       * Render all 'normal' voices (that is voices which were not stolen in
463         * this fragment) on the given engine channel.
464          // render audio from all active voices       *
465          {       * @param pEngineChannel - engine channel on which audio should be
466              RTList<uint>::Iterator iuiKey = pEngineChannel->pActiveKeys->first();       *                         rendered
467              RTList<uint>::Iterator end    = pEngineChannel->pActiveKeys->end();       * @param Samples        - amount of sample points to be rendered in
468              while (iuiKey != end) { // iterate through all active keys       *                         this audio fragment cycle
469                  midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[*iuiKey];       */
470                  ++iuiKey;      void Engine::RenderActiveVoices(EngineChannel* pEngineChannel, uint Samples) {
471            RTList<uint>::Iterator iuiKey = pEngineChannel->pActiveKeys->first();
472                  RTList<Voice>::Iterator itVoice     = pKey->pActiveVoices->first();          RTList<uint>::Iterator end    = pEngineChannel->pActiveKeys->end();
473                  RTList<Voice>::Iterator itVoicesEnd = pKey->pActiveVoices->end();          while (iuiKey != end) { // iterate through all active keys
474                  for (; itVoice != itVoicesEnd; ++itVoice) { // iterate through all voices on this key              midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[*iuiKey];
475                      // now render current voice              ++iuiKey;
476                      itVoice->Render(Samples);  
477                      if (itVoice->IsActive()) active_voices++; // still active              RTList<Voice>::Iterator itVoice     = pKey->pActiveVoices->first();
478                      else { // voice reached end, is now inactive              RTList<Voice>::Iterator itVoicesEnd = pKey->pActiveVoices->end();
479                          FreeVoice(pEngineChannel, itVoice); // remove voice from the list of active voices              for (; itVoice != itVoicesEnd; ++itVoice) { // iterate through all voices on this key
480                      }                  // now render current voice
481                    itVoice->Render(Samples);
482                    if (itVoice->IsActive()) ActiveVoiceCountTemp++; // still active
483                    else { // voice reached end, is now inactive
484                        FreeVoice(pEngineChannel, itVoice); // remove voice from the list of active voices
485                  }                  }
486              }              }
487          }          }
488        }
489    
490        /**
491          // now render all postponed voices from voice stealing       * Render all stolen voices (only voices which were stolen in this
492          {       * fragment) on the given engine channel. Stolen voices are rendered
493              RTList<Event>::Iterator itVoiceStealEvent = pVoiceStealingQueue->first();       * after all normal voices have been rendered; this is needed to render
494              RTList<Event>::Iterator end               = pVoiceStealingQueue->end();       * audio of those voices which were selected for voice stealing until
495              for (; itVoiceStealEvent != end; ++itVoiceStealEvent) {       * the point were the stealing (that is the take over of the voice)
496                  Pool<Voice>::Iterator itNewVoice =       * actually happened.
497                      LaunchVoice(pEngineChannel, itVoiceStealEvent, itVoiceStealEvent->Param.Note.Layer, itVoiceStealEvent->Param.Note.ReleaseTrigger, false);       *
498                  if (itNewVoice) {       * @param pEngineChannel - engine channel on which audio should be
499                      for (; itNewVoice; itNewVoice = itNewVoice->itChildVoice) {       *                         rendered
500                          itNewVoice->Render(Samples);       * @param Samples        - amount of sample points to be rendered in
501                          if (itNewVoice->IsActive()) active_voices++; // still active       *                         this audio fragment cycle
502                          else { // voice reached end, is now inactive       */
503                              FreeVoice(pEngineChannel, itNewVoice); // remove voice from the list of active voices      void Engine::RenderStolenVoices(uint Samples) {
504                          }          RTList<Event>::Iterator itVoiceStealEvent = pVoiceStealingQueue->first();
505                      }          RTList<Event>::Iterator end               = pVoiceStealingQueue->end();
506            for (; itVoiceStealEvent != end; ++itVoiceStealEvent) {
507                EngineChannel* pEngineChannel = (EngineChannel*) itVoiceStealEvent->pEngineChannel;
508                Pool<Voice>::Iterator itNewVoice =
509                    LaunchVoice(pEngineChannel, itVoiceStealEvent, itVoiceStealEvent->Param.Note.Layer, itVoiceStealEvent->Param.Note.ReleaseTrigger, false);
510                if (itNewVoice) {
511                    itNewVoice->Render(Samples);
512                    if (itNewVoice->IsActive()) ActiveVoiceCountTemp++; // still active
513                    else { // voice reached end, is now inactive
514                        FreeVoice(pEngineChannel, itNewVoice); // remove voice from the list of active voices
515                  }                  }
                 else dmsg(1,("gig::Engine: ERROR, voice stealing didn't work out!\n"));  
516              }              }
517          }              else dmsg(1,("gig::Engine: ERROR, voice stealing didn't work out!\n"));
         // reset voice stealing for the new fragment  
         pVoiceStealingQueue->clear();  
         itLastStolenVoice = RTList<Voice>::Iterator();  
         iuiLastStolenKey  = RTList<uint>::Iterator();  
518    
519                // we need to clear the key's event list explicitly here in case key was never active
520                midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[itVoiceStealEvent->Param.Note.Key];
521                pKey->VoiceTheftsQueued--;
522                if (!pKey->Active && !pKey->VoiceTheftsQueued) pKey->pEvents->clear();
523            }
524        }
525    
526        /**
527         * Free all keys which have turned inactive in this audio fragment, from
528         * the list of active keys and clear all event lists on that engine
529         * channel.
530         *
531         * @param pEngineChannel - engine channel to cleanup
532         */
533        void Engine::PostProcess(EngineChannel* pEngineChannel) {
534          // free all keys which have no active voices left          // free all keys which have no active voices left
535          {          {
536              RTList<uint>::Iterator iuiKey = pEngineChannel->pActiveKeys->first();              RTList<uint>::Iterator iuiKey = pEngineChannel->pActiveKeys->first();
# Line 413  namespace LinuxSampler { namespace gig { Line 553  namespace LinuxSampler { namespace gig {
553              }              }
554          }          }
555    
556            // empty the engine channel's own event lists
557          // write that to the disk thread class so that it can print it          pEngineChannel->ClearEventLists();
558          // on the console for debugging purposes      }
         ActiveVoiceCount = active_voices;  
         if (ActiveVoiceCount > ActiveVoiceCountMax) ActiveVoiceCountMax = ActiveVoiceCount;  
   
   
         return 0;  
     }      
559    
560      /**      /**
561       *  Will be called by the MIDI input device whenever a MIDI system       *  Will be called by the MIDI input device whenever a MIDI system
# Line 434  namespace LinuxSampler { namespace gig { Line 568  namespace LinuxSampler { namespace gig {
568          Event event             = pEventGenerator->CreateEvent();          Event event             = pEventGenerator->CreateEvent();
569          event.Type              = Event::type_sysex;          event.Type              = Event::type_sysex;
570          event.Param.Sysex.Size  = Size;          event.Param.Sysex.Size  = Size;
571            event.pEngineChannel    = NULL; // as Engine global event
572          if (pEventQueue->write_space() > 0) {          if (pEventQueue->write_space() > 0) {
573              if (pSysexBuffer->write_space() >= Size) {              if (pSysexBuffer->write_space() >= Size) {
574                  // copy sysex data to input buffer                  // copy sysex data to input buffer
# Line 461  namespace LinuxSampler { namespace gig { Line 596  namespace LinuxSampler { namespace gig {
596       *  @param itNoteOnEvent - key, velocity and time stamp of the event       *  @param itNoteOnEvent - key, velocity and time stamp of the event
597       */       */
598      void Engine::ProcessNoteOn(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itNoteOnEvent) {      void Engine::ProcessNoteOn(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itNoteOnEvent) {
599            
600          const int key = itNoteOnEvent->Param.Note.Key;          const int key = itNoteOnEvent->Param.Note.Key;
601    
602          // Change key dimension value if key is in keyswitching area          // Change key dimension value if key is in keyswitching area
# Line 489  namespace LinuxSampler { namespace gig { Line 624  namespace LinuxSampler { namespace gig {
624          // move note on event to the key's own event list          // move note on event to the key's own event list
625          RTList<Event>::Iterator itNoteOnEventOnKeyList = itNoteOnEvent.moveToEndOf(pKey->pEvents);          RTList<Event>::Iterator itNoteOnEventOnKeyList = itNoteOnEvent.moveToEndOf(pKey->pEvents);
626    
627          // allocate and trigger a new voice for the key          // allocate and trigger new voice(s) for the key
628          LaunchVoice(pEngineChannel, itNoteOnEventOnKeyList, 0, false, true);          {
629                // first, get total amount of required voices (dependant on amount of layers)
630                ::gig::Region* pRegion = pEngineChannel->pInstrument->GetRegion(itNoteOnEventOnKeyList->Param.Note.Key);
631                if (pRegion) {
632                    int voicesRequired = pRegion->Layers;
633                    // now launch the required amount of voices
634                    for (int i = 0; i < voicesRequired; i++)
635                        LaunchVoice(pEngineChannel, itNoteOnEventOnKeyList, i, false, true);
636                }
637            }
638    
639            // if neither a voice was spawned or postponed then remove note on event from key again
640            if (!pKey->Active && !pKey->VoiceTheftsQueued)
641                pKey->pEvents->free(itNoteOnEventOnKeyList);
642    
643            pKey->RoundRobinIndex++;
644      }      }
645    
646      /**      /**
# Line 517  namespace LinuxSampler { namespace gig { Line 667  namespace LinuxSampler { namespace gig {
667    
668          // spawn release triggered voice(s) if needed          // spawn release triggered voice(s) if needed
669          if (pKey->ReleaseTrigger) {          if (pKey->ReleaseTrigger) {
670              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)
671                ::gig::Region* pRegion = pEngineChannel->pInstrument->GetRegion(itNoteOffEventOnKeyList->Param.Note.Key);
672                if (pRegion) {
673                    int voicesRequired = pRegion->Layers;
674                    // now launch the required amount of voices
675                    for (int i = 0; i < voicesRequired; i++)
676                        LaunchVoice(pEngineChannel, itNoteOffEventOnKeyList, i, true, false); //FIXME: for the moment we don't perform voice stealing for release triggered samples
677                }
678              pKey->ReleaseTrigger = false;              pKey->ReleaseTrigger = false;
679          }          }
680    
681            // if neither a voice was spawned or postponed then remove note off event from key again
682            if (!pKey->Active && !pKey->VoiceTheftsQueued)
683                pKey->pEvents->free(itNoteOffEventOnKeyList);
684      }      }
685    
686      /**      /**
# Line 531  namespace LinuxSampler { namespace gig { Line 692  namespace LinuxSampler { namespace gig {
692       */       */
693      void Engine::ProcessPitchbend(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itPitchbendEvent) {      void Engine::ProcessPitchbend(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itPitchbendEvent) {
694          pEngineChannel->Pitch = itPitchbendEvent->Param.Pitch.Pitch; // store current pitch value          pEngineChannel->Pitch = itPitchbendEvent->Param.Pitch.Pitch; // store current pitch value
695          itPitchbendEvent.moveToEndOf(pSynthesisEvents[Event::destination_vco]);          itPitchbendEvent.moveToEndOf(pEngineChannel->pSynthesisEvents[Event::destination_vco]);
696      }      }
697    
698      /**      /**
# Line 590  namespace LinuxSampler { namespace gig { Line 751  namespace LinuxSampler { namespace gig {
751              }              }
752          }          }
753          else if (VoiceStealing) {          else if (VoiceStealing) {
754              // first, get total amount of required voices (dependant on amount of layers)              // try to steal one voice
755              ::gig::Region* pRegion = pEngineChannel->pInstrument->GetRegion(itNoteOnEvent->Param.Note.Key);              int result = StealVoice(pEngineChannel, itNoteOnEvent);
756              if (!pRegion) return Pool<Voice>::Iterator(); // nothing defined for this MIDI key, so no voice needed              if (!result) { // voice stolen successfully
757              int voicesRequired = pRegion->Layers;                  // put note-on event into voice-stealing queue, so it will be reprocessed after killed voice died
758                    RTList<Event>::Iterator itStealEvent = pVoiceStealingQueue->allocAppend();
759              // now steal the (remaining) amount of voices                  if (itStealEvent) {
760              for (int i = iLayer; i < voicesRequired; i++)                      *itStealEvent = *itNoteOnEvent; // copy event
761                  StealVoice(pEngineChannel, itNoteOnEvent);                      itStealEvent->Param.Note.Layer = iLayer;
762                        itStealEvent->Param.Note.ReleaseTrigger = ReleaseTriggerVoice;
763              // put note-on event into voice-stealing queue, so it will be reprocessed after killed voice died                      pKey->VoiceTheftsQueued++;
764              RTList<Event>::Iterator itStealEvent = pVoiceStealingQueue->allocAppend();                  }
765              if (itStealEvent) {                  else dmsg(1,("Voice stealing queue full!\n"));
                 *itStealEvent = *itNoteOnEvent; // copy event  
                 itStealEvent->Param.Note.Layer = iLayer;  
                 itStealEvent->Param.Note.ReleaseTrigger = ReleaseTriggerVoice;  
766              }              }
             else dmsg(1,("Voice stealing queue full!\n"));  
767          }          }
768    
769          return Pool<Voice>::Iterator(); // no free voice or error          return Pool<Voice>::Iterator(); // no free voice or error
# Line 620  namespace LinuxSampler { namespace gig { Line 777  namespace LinuxSampler { namespace gig {
777       *       *
778       *  @param pEngineChannel - engine channel on which this event occured on       *  @param pEngineChannel - engine channel on which this event occured on
779       *  @param itNoteOnEvent - key, velocity and time stamp of the event       *  @param itNoteOnEvent - key, velocity and time stamp of the event
780         *  @returns 0 on success, a value < 0 if no active voice could be picked for voice stealing
781       */       */
782      void Engine::StealVoice(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itNoteOnEvent) {      int Engine::StealVoice(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itNoteOnEvent) {
783            if (!VoiceTheftsLeft) {
784                dmsg(1,("Max. voice thefts per audio fragment reached (you may raise MAX_AUDIO_VOICES).\n"));
785                return -1;
786            }
787          if (!pEventPool->poolIsEmpty()) {          if (!pEventPool->poolIsEmpty()) {
788    
789              RTList<uint>::Iterator  iuiOldestKey;              RTList<Voice>::Iterator itSelectedVoice;
             RTList<Voice>::Iterator itOldestVoice;  
790    
791              // Select one voice for voice stealing              // Select one voice for voice stealing
792              switch (VOICE_STEAL_ALGORITHM) {              switch (VOICE_STEAL_ALGORITHM) {
# Line 634  namespace LinuxSampler { namespace gig { Line 795  namespace LinuxSampler { namespace gig {
795                  // voice should be spawned, if there is no voice on that                  // voice should be spawned, if there is no voice on that
796                  // key, or no voice left to kill there, then procceed with                  // key, or no voice left to kill there, then procceed with
797                  // 'oldestkey' algorithm                  // 'oldestkey' algorithm
798                  case voice_steal_algo_keymask: {                  case voice_steal_algo_oldestvoiceonkey: {
799                      midi_key_info_t* pOldestKey = &pEngineChannel->pMIDIKeyInfo[itNoteOnEvent->Param.Note.Key];                  #if 0 // FIXME: broken
800                      if (itLastStolenVoice) {                      midi_key_info_t* pSelectedKey = &pEngineChannel->pMIDIKeyInfo[itNoteOnEvent->Param.Note.Key];
801                          itOldestVoice = itLastStolenVoice;                      if (this->itLastStolenVoice) {
802                          ++itOldestVoice;                          itSelectedVoice = this->itLastStolenVoice;
803                            ++itSelectedVoice;
804                      }                      }
805                      else { // no voice stolen in this audio fragment cycle yet                      else { // no voice stolen in this audio fragment cycle yet
806                          itOldestVoice = pOldestKey->pActiveVoices->first();                          itSelectedVoice = pSelectedKey->pActiveVoices->first();
807                      }                      }
808                      if (itOldestVoice) {                      if (itSelectedVoice) {
809                          iuiOldestKey = pOldestKey->itSelf;                          iuiSelectedKey = pSelectedKey->itSelf;
810                          break; // selection succeeded                          break; // selection succeeded
811                      }                      }
812                    #endif
813                  } // no break - intentional !                  } // no break - intentional !
814    
815                  // try to pick the oldest voice on the oldest active key                  // try to pick the oldest voice on the oldest active key
816                  // (caution: must stay after 'keymask' algorithm !)                  // (caution: must stay after 'oldestvoiceonkey' algorithm !)
817                  case voice_steal_algo_oldestkey: {                  case voice_steal_algo_oldestkey: {
818                      if (itLastStolenVoice) {                      if (this->itLastStolenVoice) {
819                          midi_key_info_t* pOldestKey = &pEngineChannel->pMIDIKeyInfo[*iuiLastStolenKey];                          itSelectedVoice = this->itLastStolenVoice;
820                          itOldestVoice = itLastStolenVoice;                          ++itSelectedVoice;
821                          ++itOldestVoice;                          if (itSelectedVoice) break; // selection succeeded
822                          if (!itOldestVoice) {                          RTList<uint>::Iterator iuiSelectedKey = this->iuiLastStolenKey;
823                              iuiOldestKey = iuiLastStolenKey;                          ++iuiSelectedKey;
824                              ++iuiOldestKey;                          if (iuiSelectedKey) {
825                              if (iuiOldestKey) {                              this->iuiLastStolenKey = iuiSelectedKey;
826                                  midi_key_info_t* pOldestKey = &pEngineChannel->pMIDIKeyInfo[*iuiOldestKey];                              midi_key_info_t* pSelectedKey = &pEngineChannel->pMIDIKeyInfo[*iuiSelectedKey];
827                                  itOldestVoice = pOldestKey->pActiveVoices->first();                              itSelectedVoice = pSelectedKey->pActiveVoices->first();
828                              }                              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;  
                             }  
829                          }                          }
                         else iuiOldestKey = 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();  
830                      }                      }
831                      break;                      break;
832                  }                  }
# Line 682  namespace LinuxSampler { namespace gig { Line 835  namespace LinuxSampler { namespace gig {
835                  case voice_steal_algo_none:                  case voice_steal_algo_none:
836                  default: {                  default: {
837                      dmsg(1,("No free voice (voice stealing disabled)!\n"));                      dmsg(1,("No free voice (voice stealing disabled)!\n"));
838                      return;                      return -1;
839                    }
840                }
841    
842                // steal oldest voice on the oldest key from this or any other engine channel
843                if (!itSelectedVoice) {
844                    EngineChannel* pSelectedChannel = (pLastStolenChannel) ? pLastStolenChannel : pEngineChannel;
845                    int iChannelIndex = pSelectedChannel->iEngineIndexSelf;
846                    while (true) {
847                        RTList<uint>::Iterator iuiSelectedKey = pSelectedChannel->pActiveKeys->first();
848                        if (iuiSelectedKey) {
849                            midi_key_info_t* pSelectedKey = &pSelectedChannel->pMIDIKeyInfo[*iuiSelectedKey];
850                            itSelectedVoice    = pSelectedKey->pActiveVoices->first();
851                            iuiLastStolenKey   = iuiSelectedKey;
852                            pLastStolenChannel = pSelectedChannel;
853                            break; // selection succeeded
854                        }
855                        iChannelIndex    = (iChannelIndex + 1) % engineChannels.size();
856                        pSelectedChannel =  engineChannels[iChannelIndex];
857                  }                  }
858              }              }
859    
860              //FIXME: can be removed, just a sanity check for debugging              //FIXME: can be removed, just a sanity check for debugging
861              if (!itOldestVoice->IsActive()) dmsg(1,("gig::Engine: ERROR, tried to steal a voice which was not active !!!\n"));              if (!itSelectedVoice->IsActive()) {
862                    dmsg(1,("gig::Engine: ERROR, tried to steal a voice which was not active !!!\n"));
863                    return -1;
864                }
865    
866              // now kill the selected voice              // now kill the selected voice
867              itOldestVoice->Kill(itNoteOnEvent);              itSelectedVoice->Kill(itNoteOnEvent);
868              // remember which voice on which key we stole, so we can simply proceed for the next voice stealing  
869              this->itLastStolenVoice = itOldestVoice;              // remember which voice we stole, so we can simply proceed for the next voice stealing
870              this->iuiLastStolenKey = iuiOldestKey;              itLastStolenVoice = itSelectedVoice;
871    
872                --VoiceTheftsLeft;
873    
874                return 0; // success
875            }
876            else {
877                dmsg(1,("Event pool emtpy!\n"));
878                return -1;
879          }          }
         else dmsg(1,("Event pool emtpy!\n"));  
880      }      }
881    
882      /**      /**
# Line 754  namespace LinuxSampler { namespace gig { Line 935  namespace LinuxSampler { namespace gig {
935      void Engine::ProcessControlChange(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itControlChangeEvent) {      void Engine::ProcessControlChange(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itControlChangeEvent) {
936          dmsg(4,("Engine::ContinuousController cc=%d v=%d\n", itControlChangeEvent->Param.CC.Controller, itControlChangeEvent->Param.CC.Value));          dmsg(4,("Engine::ContinuousController cc=%d v=%d\n", itControlChangeEvent->Param.CC.Controller, itControlChangeEvent->Param.CC.Value));
937    
938          switch (itControlChangeEvent->Param.CC.Controller) {          // update controller value in the engine channel's controller table
939              case 64: {          pEngineChannel->ControllerTable[itControlChangeEvent->Param.CC.Controller] = itControlChangeEvent->Param.CC.Value;
940                  if (itControlChangeEvent->Param.CC.Value >= 64 && !pEngineChannel->SustainPedal) {  
941            // move event from the unsorted event list to the control change event list
942            Pool<Event>::Iterator itControlChangeEventOnCCList = itControlChangeEvent.moveToEndOf(pEngineChannel->pCCEvents);
943    
944            switch (itControlChangeEventOnCCList->Param.CC.Controller) {
945                case 7: { // volume
946                    //TODO: not sample accurate yet
947                    pEngineChannel->GlobalVolume = (float) itControlChangeEventOnCCList->Param.CC.Value / 127.0f;
948                    break;
949                }
950                case 10: { // panpot
951                    //TODO: not sample accurate yet
952                    const int pan = (int) itControlChangeEventOnCCList->Param.CC.Value - 64;
953                    pEngineChannel->GlobalPanLeft  = 1.0f - float(RTMath::Max(pan, 0)) /  63.0f;
954                    pEngineChannel->GlobalPanRight = 1.0f - float(RTMath::Min(pan, 0)) / -64.0f;
955                    break;
956                }
957                case 64: { // sustain
958                    if (itControlChangeEventOnCCList->Param.CC.Value >= 64 && !pEngineChannel->SustainPedal) {
959                      dmsg(4,("PEDAL DOWN\n"));                      dmsg(4,("PEDAL DOWN\n"));
960                      pEngineChannel->SustainPedal = true;                      pEngineChannel->SustainPedal = true;
961    
962                      // cancel release process of voices if necessary                      // cancel release process of voices if necessary
963                      RTList<uint>::Iterator iuiKey = pEngineChannel->pActiveKeys->first();                      RTList<uint>::Iterator iuiKey = pEngineChannel->pActiveKeys->first();
964                      if (iuiKey) {                      for (; iuiKey; ++iuiKey) {
965                          itControlChangeEvent->Type = Event::type_cancel_release; // transform event type                          midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[*iuiKey];
966                          while (iuiKey) {                          if (!pKey->KeyPressed) {
967                              midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[*iuiKey];                              RTList<Event>::Iterator itNewEvent = pKey->pEvents->allocAppend();
968                              ++iuiKey;                              if (itNewEvent) {
969                              if (!pKey->KeyPressed) {                                  *itNewEvent = *itControlChangeEventOnCCList; // copy event to the key's own event list
970                                  RTList<Event>::Iterator itNewEvent = pKey->pEvents->allocAppend();                                  itNewEvent->Type = Event::type_cancel_release; // transform event type
                                 if (itNewEvent) *itNewEvent = *itControlChangeEvent; // copy event to the key's own event list  
                                 else dmsg(1,("Event pool emtpy!\n"));  
971                              }                              }
972                                else dmsg(1,("Event pool emtpy!\n"));
973                          }                          }
974                      }                      }
975                  }                  }
976                  if (itControlChangeEvent->Param.CC.Value < 64 && pEngineChannel->SustainPedal) {                  if (itControlChangeEventOnCCList->Param.CC.Value < 64 && pEngineChannel->SustainPedal) {
977                      dmsg(4,("PEDAL UP\n"));                      dmsg(4,("PEDAL UP\n"));
978                      pEngineChannel->SustainPedal = false;                      pEngineChannel->SustainPedal = false;
979    
980                      // release voices if their respective key is not pressed                      // release voices if their respective key is not pressed
981                      RTList<uint>::Iterator iuiKey = pEngineChannel->pActiveKeys->first();                      RTList<uint>::Iterator iuiKey = pEngineChannel->pActiveKeys->first();
982                      if (iuiKey) {                      for (; iuiKey; ++iuiKey) {
983                          itControlChangeEvent->Type = Event::type_release; // transform event type                          midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[*iuiKey];
984                          while (iuiKey) {                          if (!pKey->KeyPressed) {
985                              midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[*iuiKey];                              RTList<Event>::Iterator itNewEvent = pKey->pEvents->allocAppend();
986                              ++iuiKey;                              if (itNewEvent) {
987                              if (!pKey->KeyPressed) {                                  *itNewEvent = *itControlChangeEventOnCCList; // copy event to the key's own event list
988                                  RTList<Event>::Iterator itNewEvent = pKey->pEvents->allocAppend();                                  itNewEvent->Type = Event::type_release; // transform event type
                                 if (itNewEvent) *itNewEvent = *itControlChangeEvent; // copy event to the key's own event list  
                                 else dmsg(1,("Event pool emtpy!\n"));  
989                              }                              }
990                                else dmsg(1,("Event pool emtpy!\n"));
991                          }                          }
992                      }                      }
993                  }                  }
994                  break;                  break;
995              }              }
         }  
996    
         // update controller value in the engine's controller table  
         pEngineChannel->ControllerTable[itControlChangeEvent->Param.CC.Controller] = itControlChangeEvent->Param.CC.Value;  
997    
998          // move event from the unsorted event list to the control change event list              // Channel Mode Messages
999          itControlChangeEvent.moveToEndOf(pCCEvents);  
1000                case 120: { // all sound off
1001                    KillAllVoices(pEngineChannel, itControlChangeEventOnCCList);
1002                    break;
1003                }
1004                case 121: { // reset all controllers
1005                    pEngineChannel->ResetControllers();
1006                    break;
1007                }
1008                case 123: { // all notes off
1009                    ReleaseAllVoices(pEngineChannel, itControlChangeEventOnCCList);
1010                    break;
1011                }
1012            }
1013      }      }
1014    
1015      /**      /**
# Line 889  namespace LinuxSampler { namespace gig { Line 1096  namespace LinuxSampler { namespace gig {
1096      }      }
1097    
1098      /**      /**
1099         * Releases all voices on an engine channel. All voices will go into
1100         * the release stage and thus it might take some time (e.g. dependant to
1101         * their envelope release time) until they actually die.
1102         *
1103         * @param pEngineChannel - engine channel on which all voices should be released
1104         * @param itReleaseEvent - event which caused this releasing of all voices
1105         */
1106        void Engine::ReleaseAllVoices(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itReleaseEvent) {
1107            RTList<uint>::Iterator iuiKey = pEngineChannel->pActiveKeys->first();
1108            while (iuiKey) {
1109                midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[*iuiKey];
1110                ++iuiKey;
1111                // append a 'release' event to the key's own event list
1112                RTList<Event>::Iterator itNewEvent = pKey->pEvents->allocAppend();
1113                if (itNewEvent) {
1114                    *itNewEvent = *itReleaseEvent; // copy original event (to the key's event list)
1115                    itNewEvent->Type = Event::type_release; // transform event type
1116                }
1117                else dmsg(1,("Event pool emtpy!\n"));
1118            }
1119        }
1120    
1121        /**
1122         * Kills all voices on an engine channel as soon as possible. Voices
1123         * won't get into release state, their volume level will be ramped down
1124         * as fast as possible.
1125         *
1126         * @param pEngineChannel - engine channel on which all voices should be killed
1127         * @param itKillEvent    - event which caused this killing of all voices
1128         */
1129        void Engine::KillAllVoices(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itKillEvent) {
1130            RTList<uint>::Iterator iuiKey = pEngineChannel->pActiveKeys->first();
1131            RTList<uint>::Iterator end    = pEngineChannel->pActiveKeys->end();
1132            while (iuiKey != end) { // iterate through all active keys
1133                midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[*iuiKey];
1134                ++iuiKey;
1135                RTList<Voice>::Iterator itVoice     = pKey->pActiveVoices->first();
1136                RTList<Voice>::Iterator itVoicesEnd = pKey->pActiveVoices->end();
1137                for (; itVoice != itVoicesEnd; ++itVoice) { // iterate through all voices on this key
1138                    itVoice->Kill(itKillEvent);
1139                }
1140            }
1141        }
1142    
1143        /**
1144       * Initialize the parameter sequence for the modulation destination given by       * Initialize the parameter sequence for the modulation destination given by
1145       * by 'dst' with the constant value given by val.       * by 'dst' with the constant value given by val.
1146       */       */
# Line 901  namespace LinuxSampler { namespace gig { Line 1153  namespace LinuxSampler { namespace gig {
1153             m[i+2] = val;             m[i+2] = val;
1154             m[i+3] = val;             m[i+3] = val;
1155          }          }
1156      }          }
1157    
1158      uint Engine::VoiceCount() {      uint Engine::VoiceCount() {
1159          return ActiveVoiceCount;          return ActiveVoiceCount;
# Line 940  namespace LinuxSampler { namespace gig { Line 1192  namespace LinuxSampler { namespace gig {
1192      }      }
1193    
1194      String Engine::Version() {      String Engine::Version() {
1195          String s = "$Revision: 1.26 $";          String s = "$Revision: 1.33 $";
1196          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
1197      }      }
1198    
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