/[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 242 by schoenebeck, Wed Sep 15 13:59:08 2004 UTC revision 361 by schoenebeck, Wed Feb 9 01:22:18 2005 UTC
# Line 23  Line 23 
23  #include <sstream>  #include <sstream>
24  #include "DiskThread.h"  #include "DiskThread.h"
25  #include "Voice.h"  #include "Voice.h"
26    #include "EGADSR.h"
27    
28  #include "Engine.h"  #include "Engine.h"
29    
30    #if defined(__APPLE__)
31    # include <stdlib.h>
32    #else
33    # include <malloc.h>
34    #endif
35    
36  namespace LinuxSampler { namespace gig {  namespace LinuxSampler { namespace gig {
37    
38      InstrumentResourceManager Engine::Instruments;      InstrumentResourceManager Engine::Instruments;
# Line 37  namespace LinuxSampler { namespace gig { Line 44  namespace LinuxSampler { namespace gig {
44          pAudioOutputDevice = NULL;          pAudioOutputDevice = NULL;
45          pDiskThread        = NULL;          pDiskThread        = NULL;
46          pEventGenerator    = NULL;          pEventGenerator    = NULL;
47          pEventQueue        = new RingBuffer<Event>(MAX_EVENTS_PER_FRAGMENT);          pSysexBuffer       = new RingBuffer<uint8_t>(SYSEX_BUFFER_SIZE, 0);
48          pEventPool         = new RTELMemoryPool<Event>(MAX_EVENTS_PER_FRAGMENT);          pEventQueue        = new RingBuffer<Event>(MAX_EVENTS_PER_FRAGMENT, 0);
49          pVoicePool         = new RTELMemoryPool<Voice>(MAX_AUDIO_VOICES);          pEventPool         = new Pool<Event>(MAX_EVENTS_PER_FRAGMENT);
50          pActiveKeys        = new RTELMemoryPool<uint>(128);          pVoicePool         = new Pool<Voice>(MAX_AUDIO_VOICES);
51          pEvents            = new RTEList<Event>(pEventPool);          pActiveKeys        = new Pool<uint>(128);
52          pCCEvents          = new RTEList<Event>(pEventPool);          pVoiceStealingQueue = new RTList<Event>(pEventPool);
53            pEvents            = new RTList<Event>(pEventPool);
54            pCCEvents          = new RTList<Event>(pEventPool);
55          for (uint i = 0; i < Event::destination_count; i++) {          for (uint i = 0; i < Event::destination_count; i++) {
56              pSynthesisEvents[i] = new RTEList<Event>(pEventPool);              pSynthesisEvents[i] = new RTList<Event>(pEventPool);
57          }          }
58          for (uint i = 0; i < 128; i++) {          for (uint i = 0; i < 128; i++) {
59              pMIDIKeyInfo[i].pActiveVoices  = new RTEList<Voice>(pVoicePool);              pMIDIKeyInfo[i].pActiveVoices  = new RTList<Voice>(pVoicePool);
60              pMIDIKeyInfo[i].KeyPressed     = false;              pMIDIKeyInfo[i].KeyPressed     = false;
61              pMIDIKeyInfo[i].Active         = false;              pMIDIKeyInfo[i].Active         = false;
62              pMIDIKeyInfo[i].ReleaseTrigger = false;              pMIDIKeyInfo[i].ReleaseTrigger = false;
63              pMIDIKeyInfo[i].pSelf          = NULL;              pMIDIKeyInfo[i].pEvents        = new RTList<Event>(pEventPool);
             pMIDIKeyInfo[i].pEvents        = new RTEList<Event>(pEventPool);  
64          }          }
65          for (Voice* pVoice = pVoicePool->alloc(); pVoice; pVoice = pVoicePool->alloc()) {          for (RTList<Voice>::Iterator iterVoice = pVoicePool->allocAppend(); iterVoice == pVoicePool->last(); iterVoice = pVoicePool->allocAppend()) {
66              pVoice->SetEngine(this);              iterVoice->SetEngine(this);
67          }          }
68          pVoicePool->clear();          pVoicePool->clear();
69    
# Line 74  namespace LinuxSampler { namespace gig { Line 82  namespace LinuxSampler { namespace gig {
82    
83      Engine::~Engine() {      Engine::~Engine() {
84          if (pDiskThread) {          if (pDiskThread) {
85                dmsg(1,("Stopping disk thread..."));
86              pDiskThread->StopThread();              pDiskThread->StopThread();
87              delete pDiskThread;              delete pDiskThread;
88                dmsg(1,("OK\n"));
89          }          }
90    
91            if (pInstrument) Instruments.HandBack(pInstrument, this);
92    
93          if (pGig)  delete pGig;          if (pGig)  delete pGig;
94          if (pRIFF) delete pRIFF;          if (pRIFF) delete pRIFF;
95          for (uint i = 0; i < 128; i++) {          for (uint i = 0; i < 128; i++) {
# Line 86  namespace LinuxSampler { namespace gig { Line 99  namespace LinuxSampler { namespace gig {
99          for (uint i = 0; i < Event::destination_count; i++) {          for (uint i = 0; i < Event::destination_count; i++) {
100              if (pSynthesisEvents[i]) delete pSynthesisEvents[i];              if (pSynthesisEvents[i]) delete pSynthesisEvents[i];
101          }          }
         delete[] pSynthesisEvents;  
102          if (pEvents)     delete pEvents;          if (pEvents)     delete pEvents;
103          if (pCCEvents)   delete pCCEvents;          if (pCCEvents)   delete pCCEvents;
104          if (pEventQueue) delete pEventQueue;          if (pEventQueue) delete pEventQueue;
105          if (pEventPool)  delete pEventPool;          if (pEventPool)  delete pEventPool;
106          if (pVoicePool)  delete pVoicePool;          if (pVoicePool) {
107                    pVoicePool->clear();
108                    delete pVoicePool;
109            }
110          if (pActiveKeys) delete pActiveKeys;          if (pActiveKeys) delete pActiveKeys;
111            if (pSysexBuffer) delete pSysexBuffer;
112          if (pEventGenerator) delete pEventGenerator;          if (pEventGenerator) delete pEventGenerator;
113          if (pMainFilterParameters) delete[] pMainFilterParameters;          if (pMainFilterParameters) delete[] pMainFilterParameters;
114          if (pBasicFilterParameters) delete[] pBasicFilterParameters;          if (pBasicFilterParameters) delete[] pBasicFilterParameters;
115          if (pSynthesisParameters[0]) delete[] pSynthesisParameters[0];          if (pSynthesisParameters[0]) free(pSynthesisParameters[0]);
116            if (pVoiceStealingQueue) delete pVoiceStealingQueue;
117      }      }
118    
119      void Engine::Enable() {      void Engine::Enable() {
# Line 154  namespace LinuxSampler { namespace gig { Line 171  namespace LinuxSampler { namespace gig {
171          ActiveVoiceCount    = 0;          ActiveVoiceCount    = 0;
172          ActiveVoiceCountMax = 0;          ActiveVoiceCountMax = 0;
173          GlobalVolume        = 1.0;          GlobalVolume        = 1.0;
174            CurrentKeyDimension = 0;
175    
176            // reset voice stealing parameters
177            itLastStolenVoice = RTList<Voice>::Iterator();
178            iuiLastStolenKey  = RTList<uint>::Iterator();
179            pVoiceStealingQueue->clear();
180    
181            // reset to normal chromatic scale (means equal temper)
182            memset(&ScaleTuning[0], 0x00, 12);
183    
184          // set all MIDI controller values to zero          // set all MIDI controller values to zero
185          memset(ControllerTable, 0x00, 128);          memset(ControllerTable, 0x00, 128);
# Line 165  namespace LinuxSampler { namespace gig { Line 191  namespace LinuxSampler { namespace gig {
191              pMIDIKeyInfo[i].KeyPressed     = false;              pMIDIKeyInfo[i].KeyPressed     = false;
192              pMIDIKeyInfo[i].Active         = false;              pMIDIKeyInfo[i].Active         = false;
193              pMIDIKeyInfo[i].ReleaseTrigger = false;              pMIDIKeyInfo[i].ReleaseTrigger = false;
194              pMIDIKeyInfo[i].pSelf          = NULL;              pMIDIKeyInfo[i].itSelf         = Pool<uint>::Iterator();
195          }          }
196    
197          // reset all key groups          // reset all key groups
# Line 173  namespace LinuxSampler { namespace gig { Line 199  namespace LinuxSampler { namespace gig {
199          for (; iter != ActiveKeyGroups.end(); iter++) iter->second = NULL;          for (; iter != ActiveKeyGroups.end(); iter++) iter->second = NULL;
200    
201          // reset all voices          // reset all voices
202          for (Voice* pVoice = pVoicePool->alloc(); pVoice; pVoice = pVoicePool->alloc()) {          for (RTList<Voice>::Iterator iterVoice = pVoicePool->allocAppend(); iterVoice == pVoicePool->last(); iterVoice = pVoicePool->allocAppend()) {
203              pVoice->Reset();              iterVoice->Reset();
204          }          }
205          pVoicePool->clear();          pVoicePool->clear();
206    
# Line 302  namespace LinuxSampler { namespace gig { Line 328  namespace LinuxSampler { namespace gig {
328          this->MaxSamplesPerCycle      = pAudioOutputDevice->MaxSamplesPerCycle();          this->MaxSamplesPerCycle      = pAudioOutputDevice->MaxSamplesPerCycle();
329          this->SampleRate              = pAudioOutputDevice->SampleRate();          this->SampleRate              = pAudioOutputDevice->SampleRate();
330    
331            // FIXME: audio drivers with varying fragment sizes might be a problem here
332            MaxFadeOutPos = MaxSamplesPerCycle - int(double(SampleRate) * EG_MIN_RELEASE_TIME) - 1;
333            if (MaxFadeOutPos < 0)
334                throw LinuxSamplerException("EG_MIN_RELEASE_TIME in EGADSR.h to big for current audio fragment size / sampling rate!");
335    
336          // (re)create disk thread          // (re)create disk thread
337          if (this->pDiskThread) {          if (this->pDiskThread) {
338                dmsg(1,("Stopping disk thread..."));
339              this->pDiskThread->StopThread();              this->pDiskThread->StopThread();
340              delete this->pDiskThread;              delete this->pDiskThread;
341                dmsg(1,("OK\n"));
342          }          }
343          this->pDiskThread = new DiskThread(((pAudioOut->MaxSamplesPerCycle() << MAX_PITCH) << 1) + 6); //FIXME: assuming stereo          this->pDiskThread = new DiskThread(((pAudioOut->MaxSamplesPerCycle() << MAX_PITCH) << 1) + 6); //FIXME: assuming stereo
344          if (!pDiskThread) {          if (!pDiskThread) {
# Line 313  namespace LinuxSampler { namespace gig { Line 346  namespace LinuxSampler { namespace gig {
346              exit(EXIT_FAILURE);              exit(EXIT_FAILURE);
347          }          }
348    
349          for (Voice* pVoice = pVoicePool->alloc(); pVoice; pVoice = pVoicePool->alloc()) {          for (RTList<Voice>::Iterator iterVoice = pVoicePool->allocAppend(); iterVoice == pVoicePool->last(); iterVoice = pVoicePool->allocAppend()) {
350              pVoice->pDiskThread = this->pDiskThread;              iterVoice->pDiskThread = this->pDiskThread;
351              dmsg(3,("d"));              dmsg(3,("d"));
352          }          }
353          pVoicePool->clear();          pVoicePool->clear();
# Line 324  namespace LinuxSampler { namespace gig { Line 357  namespace LinuxSampler { namespace gig {
357          pEventGenerator = new EventGenerator(pAudioOut->SampleRate());          pEventGenerator = new EventGenerator(pAudioOut->SampleRate());
358    
359          // (re)allocate synthesis parameter matrix          // (re)allocate synthesis parameter matrix
360          if (pSynthesisParameters[0]) delete[] pSynthesisParameters[0];          if (pSynthesisParameters[0]) free(pSynthesisParameters[0]);
361          pSynthesisParameters[0] = new float[Event::destination_count * pAudioOut->MaxSamplesPerCycle()];  
362            #if defined(__APPLE__)
363            pSynthesisParameters[0] = (float *) malloc(Event::destination_count * sizeof(float) * pAudioOut->MaxSamplesPerCycle());
364            #else
365            pSynthesisParameters[0] = (float *) memalign(16,(Event::destination_count * sizeof(float) * pAudioOut->MaxSamplesPerCycle()));
366            #endif
367          for (int dst = 1; dst < Event::destination_count; dst++)          for (int dst = 1; dst < Event::destination_count; dst++)
368              pSynthesisParameters[dst] = pSynthesisParameters[dst - 1] + pAudioOut->MaxSamplesPerCycle();              pSynthesisParameters[dst] = pSynthesisParameters[dst - 1] + pAudioOut->MaxSamplesPerCycle();
369    
# Line 339  namespace LinuxSampler { namespace gig { Line 377  namespace LinuxSampler { namespace gig {
377          pDiskThread->StartThread();          pDiskThread->StartThread();
378          dmsg(1,("OK\n"));          dmsg(1,("OK\n"));
379    
380          for (Voice* pVoice = pVoicePool->first(); pVoice; pVoice = pVoicePool->next()) {          for (RTList<Voice>::Iterator iterVoice = pVoicePool->allocAppend(); iterVoice == pVoicePool->last(); iterVoice = pVoicePool->allocAppend()) {
381              if (!pVoice->pDiskThread) {              if (!iterVoice->pDiskThread) {
382                  dmsg(0,("Engine -> voice::trigger: !pDiskThread\n"));                  dmsg(0,("Engine -> voice::trigger: !pDiskThread\n"));
383                  exit(EXIT_FAILURE);                  exit(EXIT_FAILURE);
384              }              }
# Line 381  namespace LinuxSampler { namespace gig { Line 419  namespace LinuxSampler { namespace gig {
419          }          }
420    
421    
422            // update time of start and end of this audio fragment (as events' time stamps relate to this)
423            pEventGenerator->UpdateFragmentTime(Samples);
424    
425    
426          // empty the event lists for the new fragment          // empty the event lists for the new fragment
427          pEvents->clear();          pEvents->clear();
428          pCCEvents->clear();          pCCEvents->clear();
429          for (uint i = 0; i < Event::destination_count; i++) {          for (uint i = 0; i < Event::destination_count; i++) {
430              pSynthesisEvents[i]->clear();              pSynthesisEvents[i]->clear();
431          }          }
432            {
433          // read and copy events from input queue              RTList<uint>::Iterator iuiKey = pActiveKeys->first();
434          Event event = pEventGenerator->CreateEvent();              RTList<uint>::Iterator end    = pActiveKeys->end();
435          while (true) {              for(; iuiKey != end; ++iuiKey) {
436              if (!pEventQueue->pop(&event)) break;                  pMIDIKeyInfo[*iuiKey].pEvents->clear(); // free all events on the key
437              pEvents->alloc_assign(event);              }
438          }          }
439    
440    
441          // update time of start and end of this audio fragment (as events' time stamps relate to this)          // get all events from the input event queue which belong to the current fragment
442          pEventGenerator->UpdateFragmentTime(Samples);          {
443                RingBuffer<Event>::NonVolatileReader eventQueueReader = pEventQueue->get_non_volatile_reader();
444                Event* pEvent;
445                while (true) {
446                    // get next event from input event queue
447                    if (!(pEvent = eventQueueReader.pop())) break;
448                    // if younger event reached, ignore that and all subsequent ones for now
449                    if (pEvent->FragmentPos() >= Samples) {
450                        eventQueueReader--;
451                        dmsg(2,("Younger Event, pos=%d ,Samples=%d!\n",pEvent->FragmentPos(),Samples));
452                        pEvent->ResetFragmentPos();
453                        break;
454                    }
455                    // copy event to internal event list
456                    if (pEvents->poolIsEmpty()) {
457                        dmsg(1,("Event pool emtpy!\n"));
458                        break;
459                    }
460                    *pEvents->allocAppend() = *pEvent;
461                }
462                eventQueueReader.free(); // free all copied events from input queue
463            }
464    
465    
466          // process events          // process events
467          Event* pNextEvent = pEvents->first();          {
468          while (pNextEvent) {              RTList<Event>::Iterator itEvent = pEvents->first();
469              Event* pEvent = pNextEvent;              RTList<Event>::Iterator end     = pEvents->end();
470              pEvents->set_current(pEvent);              for (; itEvent != end; ++itEvent) {
471              pNextEvent = pEvents->next();                  switch (itEvent->Type) {
472              switch (pEvent->Type) {                      case Event::type_note_on:
473                  case Event::type_note_on:                          dmsg(5,("Engine: Note on received\n"));
474                      dmsg(5,("Audio Thread: Note on received\n"));                          ProcessNoteOn(itEvent);
475                      ProcessNoteOn(pEvent);                          break;
476                      break;                      case Event::type_note_off:
477                  case Event::type_note_off:                          dmsg(5,("Engine: Note off received\n"));
478                      dmsg(5,("Audio Thread: Note off received\n"));                          ProcessNoteOff(itEvent);
479                      ProcessNoteOff(pEvent);                          break;
480                      break;                      case Event::type_control_change:
481                  case Event::type_control_change:                          dmsg(5,("Engine: MIDI CC received\n"));
482                      dmsg(5,("Audio Thread: MIDI CC received\n"));                          ProcessControlChange(itEvent);
483                      ProcessControlChange(pEvent);                          break;
484                      break;                      case Event::type_pitchbend:
485                  case Event::type_pitchbend:                          dmsg(5,("Engine: Pitchbend received\n"));
486                      dmsg(5,("Audio Thread: Pitchbend received\n"));                          ProcessPitchbend(itEvent);
487                      ProcessPitchbend(pEvent);                          break;
488                      break;                      case Event::type_sysex:
489                            dmsg(5,("Engine: Sysex received\n"));
490                            ProcessSysex(itEvent);
491                            break;
492                    }
493              }              }
494          }          }
495    
496    
         // render audio from all active voices  
497          int active_voices = 0;          int active_voices = 0;
498          uint* piKey = pActiveKeys->first();  
499          while (piKey) { // iterate through all active keys          // render audio from all active voices
500              midi_key_info_t* pKey = &pMIDIKeyInfo[*piKey];          {
501              pActiveKeys->set_current(piKey);              RTList<uint>::Iterator iuiKey = pActiveKeys->first();
502              piKey = pActiveKeys->next();              RTList<uint>::Iterator end    = pActiveKeys->end();
503                while (iuiKey != end) { // iterate through all active keys
504              Voice* pVoiceNext = pKey->pActiveVoices->first();                  midi_key_info_t* pKey = &pMIDIKeyInfo[*iuiKey];
505              while (pVoiceNext) { // iterate through all voices on this key                  ++iuiKey;
506                  // already get next voice on key  
507                  Voice* pVoice = pVoiceNext;                  RTList<Voice>::Iterator itVoice     = pKey->pActiveVoices->first();
508                  pKey->pActiveVoices->set_current(pVoice);                  RTList<Voice>::Iterator itVoicesEnd = pKey->pActiveVoices->end();
509                  pVoiceNext = pKey->pActiveVoices->next();                  for (; itVoice != itVoicesEnd; ++itVoice) { // iterate through all voices on this key
510                        // now render current voice
511                  // now render current voice                      itVoice->Render(Samples);
512                  pVoice->Render(Samples);                      if (itVoice->IsActive()) active_voices++; // still active
513                  if (pVoice->IsActive()) active_voices++; // still active                      else { // voice reached end, is now inactive
514                  else { // voice reached end, is now inactive                          FreeVoice(itVoice); // remove voice from the list of active voices
515                      KillVoiceImmediately(pVoice); // remove voice from the list of active voices                      }
516                    }
517                }
518            }
519    
520    
521            // now render all postponed voices from voice stealing
522            {
523                RTList<Event>::Iterator itVoiceStealEvent = pVoiceStealingQueue->first();
524                RTList<Event>::Iterator end               = pVoiceStealingQueue->end();
525                for (; itVoiceStealEvent != end; ++itVoiceStealEvent) {
526                    Pool<Voice>::Iterator itNewVoice = LaunchVoice(itVoiceStealEvent, itVoiceStealEvent->Param.Note.Layer, itVoiceStealEvent->Param.Note.ReleaseTrigger, false);
527                    if (itNewVoice) {
528                        for (; itNewVoice; itNewVoice = itNewVoice->itChildVoice) {
529                            itNewVoice->Render(Samples);
530                            if (itNewVoice->IsActive()) active_voices++; // still active
531                            else { // voice reached end, is now inactive
532                                FreeVoice(itNewVoice); // remove voice from the list of active voices
533                            }
534                        }
535                    }
536                    else dmsg(1,("gig::Engine: ERROR, voice stealing didn't work out!\n"));
537                }
538            }
539            // reset voice stealing for the new fragment
540            pVoiceStealingQueue->clear();
541            itLastStolenVoice = RTList<Voice>::Iterator();
542            iuiLastStolenKey  = RTList<uint>::Iterator();
543    
544    
545            // free all keys which have no active voices left
546            {
547                RTList<uint>::Iterator iuiKey = pActiveKeys->first();
548                RTList<uint>::Iterator end    = pActiveKeys->end();
549                while (iuiKey != end) { // iterate through all active keys
550                    midi_key_info_t* pKey = &pMIDIKeyInfo[*iuiKey];
551                    ++iuiKey;
552                    if (pKey->pActiveVoices->isEmpty()) FreeKey(pKey);
553                    #if DEVMODE
554                    else { // FIXME: should be removed before the final release (purpose: just a sanity check for debugging)
555                        RTList<Voice>::Iterator itVoice     = pKey->pActiveVoices->first();
556                        RTList<Voice>::Iterator itVoicesEnd = pKey->pActiveVoices->end();
557                        for (; itVoice != itVoicesEnd; ++itVoice) { // iterate through all voices on this key
558                            if (itVoice->itKillEvent) {
559                                dmsg(1,("gig::Engine: ERROR, killed voice survived !!!\n"));
560                            }
561                        }
562                  }                  }
563                    #endif // DEVMODE
564              }              }
             pKey->pEvents->clear(); // free all events on the key  
565          }          }
566    
567    
# Line 470  namespace LinuxSampler { namespace gig { Line 582  namespace LinuxSampler { namespace gig {
582       *  @param Velocity - MIDI velocity value of the triggered key       *  @param Velocity - MIDI velocity value of the triggered key
583       */       */
584      void Engine::SendNoteOn(uint8_t Key, uint8_t Velocity) {      void Engine::SendNoteOn(uint8_t Key, uint8_t Velocity) {
585          Event event    = pEventGenerator->CreateEvent();          Event event               = pEventGenerator->CreateEvent();
586          event.Type     = Event::type_note_on;          event.Type                = Event::type_note_on;
587          event.Key      = Key;          event.Param.Note.Key      = Key;
588          event.Velocity = Velocity;          event.Param.Note.Velocity = Velocity;
589          if (this->pEventQueue->write_space() > 0) this->pEventQueue->push(&event);          if (this->pEventQueue->write_space() > 0) this->pEventQueue->push(&event);
590          else dmsg(1,("Engine: Input event queue full!"));          else dmsg(1,("Engine: Input event queue full!"));
591      }      }
# Line 486  namespace LinuxSampler { namespace gig { Line 598  namespace LinuxSampler { namespace gig {
598       *  @param Velocity - MIDI release velocity value of the released key       *  @param Velocity - MIDI release velocity value of the released key
599       */       */
600      void Engine::SendNoteOff(uint8_t Key, uint8_t Velocity) {      void Engine::SendNoteOff(uint8_t Key, uint8_t Velocity) {
601          Event event    = pEventGenerator->CreateEvent();          Event event               = pEventGenerator->CreateEvent();
602          event.Type     = Event::type_note_off;          event.Type                = Event::type_note_off;
603          event.Key      = Key;          event.Param.Note.Key      = Key;
604          event.Velocity = Velocity;          event.Param.Note.Velocity = Velocity;
605          if (this->pEventQueue->write_space() > 0) this->pEventQueue->push(&event);          if (this->pEventQueue->write_space() > 0) this->pEventQueue->push(&event);
606          else dmsg(1,("Engine: Input event queue full!"));          else dmsg(1,("Engine: Input event queue full!"));
607      }      }
# Line 501  namespace LinuxSampler { namespace gig { Line 613  namespace LinuxSampler { namespace gig {
613       *  @param Pitch - MIDI pitch value (-8192 ... +8191)       *  @param Pitch - MIDI pitch value (-8192 ... +8191)
614       */       */
615      void Engine::SendPitchbend(int Pitch) {      void Engine::SendPitchbend(int Pitch) {
616          Event event = pEventGenerator->CreateEvent();          Event event             = pEventGenerator->CreateEvent();
617          event.Type  = Event::type_pitchbend;          event.Type              = Event::type_pitchbend;
618          event.Pitch = Pitch;          event.Param.Pitch.Pitch = Pitch;
619          if (this->pEventQueue->write_space() > 0) this->pEventQueue->push(&event);          if (this->pEventQueue->write_space() > 0) this->pEventQueue->push(&event);
620          else dmsg(1,("Engine: Input event queue full!"));          else dmsg(1,("Engine: Input event queue full!"));
621      }      }
# Line 516  namespace LinuxSampler { namespace gig { Line 628  namespace LinuxSampler { namespace gig {
628       *  @param Value      - value of the control change       *  @param Value      - value of the control change
629       */       */
630      void Engine::SendControlChange(uint8_t Controller, uint8_t Value) {      void Engine::SendControlChange(uint8_t Controller, uint8_t Value) {
631          Event event      = pEventGenerator->CreateEvent();          Event event               = pEventGenerator->CreateEvent();
632          event.Type       = Event::type_control_change;          event.Type                = Event::type_control_change;
633          event.Controller = Controller;          event.Param.CC.Controller = Controller;
634          event.Value      = Value;          event.Param.CC.Value      = Value;
635          if (this->pEventQueue->write_space() > 0) this->pEventQueue->push(&event);          if (this->pEventQueue->write_space() > 0) this->pEventQueue->push(&event);
636          else dmsg(1,("Engine: Input event queue full!"));          else dmsg(1,("Engine: Input event queue full!"));
637      }      }
638    
639      /**      /**
640         *  Will be called by the MIDI input device whenever a MIDI system
641         *  exclusive message has arrived.
642         *
643         *  @param pData - pointer to sysex data
644         *  @param Size  - lenght of sysex data (in bytes)
645         */
646        void Engine::SendSysex(void* pData, uint Size) {
647            Event event             = pEventGenerator->CreateEvent();
648            event.Type              = Event::type_sysex;
649            event.Param.Sysex.Size  = Size;
650            if (pEventQueue->write_space() > 0) {
651                if (pSysexBuffer->write_space() >= Size) {
652                    // copy sysex data to input buffer
653                    uint toWrite = Size;
654                    uint8_t* pPos = (uint8_t*) pData;
655                    while (toWrite) {
656                        const uint writeNow = RTMath::Min(toWrite, pSysexBuffer->write_space_to_end());
657                        pSysexBuffer->write(pPos, writeNow);
658                        toWrite -= writeNow;
659                        pPos    += writeNow;
660    
661                    }
662                    // finally place sysex event into input event queue
663                    pEventQueue->push(&event);
664                }
665                else dmsg(1,("Engine: Sysex message too large (%d byte) for input buffer (%d byte)!",Size,SYSEX_BUFFER_SIZE));
666            }
667            else dmsg(1,("Engine: Input event queue full!"));
668        }
669    
670        /**
671       *  Assigns and triggers a new voice for the respective MIDI key.       *  Assigns and triggers a new voice for the respective MIDI key.
672       *       *
673       *  @param pNoteOnEvent - key, velocity and time stamp of the event       *  @param itNoteOnEvent - key, velocity and time stamp of the event
674       */       */
675      void Engine::ProcessNoteOn(Event* pNoteOnEvent) {      void Engine::ProcessNoteOn(Pool<Event>::Iterator& itNoteOnEvent) {
676          midi_key_info_t* pKey = &pMIDIKeyInfo[pNoteOnEvent->Key];  
677            const int key = itNoteOnEvent->Param.Note.Key;
678    
679            // Change key dimension value if key is in keyswitching area
680            if (key >= pInstrument->DimensionKeyRange.low && key <= pInstrument->DimensionKeyRange.high)
681                CurrentKeyDimension = ((key - pInstrument->DimensionKeyRange.low) * 128) /
682                    (pInstrument->DimensionKeyRange.high - pInstrument->DimensionKeyRange.low + 1);
683    
684            midi_key_info_t* pKey = &pMIDIKeyInfo[key];
685    
686          pKey->KeyPressed = true; // the MIDI key was now pressed down          pKey->KeyPressed = true; // the MIDI key was now pressed down
687    
688          // cancel release process of voices on this key if needed          // cancel release process of voices on this key if needed
689          if (pKey->Active && !SustainPedal) {          if (pKey->Active && !SustainPedal) {
690              Event* pCancelReleaseEvent = pKey->pEvents->alloc();              RTList<Event>::Iterator itCancelReleaseEvent = pKey->pEvents->allocAppend();
691              if (pCancelReleaseEvent) {              if (itCancelReleaseEvent) {
692                  *pCancelReleaseEvent = *pNoteOnEvent;                  *itCancelReleaseEvent = *itNoteOnEvent;                  // copy event
693                  pCancelReleaseEvent->Type = Event::type_cancel_release; // transform event type                  itCancelReleaseEvent->Type = Event::type_cancel_release; // transform event type
694              }              }
695              else dmsg(1,("Event pool emtpy!\n"));              else dmsg(1,("Event pool emtpy!\n"));
696          }          }
697    
698          // allocate and trigger a new voice for the key          // move note on event to the key's own event list
699          LaunchVoice(pNoteOnEvent);          RTList<Event>::Iterator itNoteOnEventOnKeyList = itNoteOnEvent.moveToEndOf(pKey->pEvents);
700    
701          // finally move note on event to the key's own event list          // allocate and trigger a new voice for the key
702          pEvents->move(pNoteOnEvent, pKey->pEvents);          LaunchVoice(itNoteOnEventOnKeyList, 0, false, true);
703      }      }
704    
705      /**      /**
# Line 557  namespace LinuxSampler { namespace gig { Line 708  namespace LinuxSampler { namespace gig {
708       *  sustain pedal will be released or voice turned inactive by itself (e.g.       *  sustain pedal will be released or voice turned inactive by itself (e.g.
709       *  due to completion of sample playback).       *  due to completion of sample playback).
710       *       *
711       *  @param pNoteOffEvent - key, velocity and time stamp of the event       *  @param itNoteOffEvent - key, velocity and time stamp of the event
712       */       */
713      void Engine::ProcessNoteOff(Event* pNoteOffEvent) {      void Engine::ProcessNoteOff(Pool<Event>::Iterator& itNoteOffEvent) {
714          midi_key_info_t* pKey = &pMIDIKeyInfo[pNoteOffEvent->Key];          midi_key_info_t* pKey = &pMIDIKeyInfo[itNoteOffEvent->Param.Note.Key];
715    
716          pKey->KeyPressed = false; // the MIDI key was now released          pKey->KeyPressed = false; // the MIDI key was now released
717    
718          // release voices on this key if needed          // release voices on this key if needed
719          if (pKey->Active && !SustainPedal) {          if (pKey->Active && !SustainPedal) {
720              pNoteOffEvent->Type = Event::type_release; // transform event type              itNoteOffEvent->Type = Event::type_release; // transform event type
721          }          }
722    
723            // move event to the key's own event list
724            RTList<Event>::Iterator itNoteOffEventOnKeyList = itNoteOffEvent.moveToEndOf(pKey->pEvents);
725    
726          // spawn release triggered voice(s) if needed          // spawn release triggered voice(s) if needed
727          if (pKey->ReleaseTrigger) {          if (pKey->ReleaseTrigger) {
728              LaunchVoice(pNoteOffEvent, 0, true);              LaunchVoice(itNoteOffEventOnKeyList, 0, true, false); //FIXME: for the moment we don't perform voice stealing for release triggered samples
729              pKey->ReleaseTrigger = false;              pKey->ReleaseTrigger = false;
730          }          }
   
         // move event to the key's own event list  
         pEvents->move(pNoteOffEvent, pKey->pEvents);  
731      }      }
732    
733      /**      /**
734       *  Moves pitchbend event from the general (input) event list to the pitch       *  Moves pitchbend event from the general (input) event list to the pitch
735       *  event list.       *  event list.
736       *       *
737       *  @param pPitchbendEvent - absolute pitch value and time stamp of the event       *  @param itPitchbendEvent - absolute pitch value and time stamp of the event
738       */       */
739      void Engine::ProcessPitchbend(Event* pPitchbendEvent) {      void Engine::ProcessPitchbend(Pool<Event>::Iterator& itPitchbendEvent) {
740          this->Pitch = pPitchbendEvent->Pitch; // store current pitch value          this->Pitch = itPitchbendEvent->Param.Pitch.Pitch; // store current pitch value
741          pEvents->move(pPitchbendEvent, pSynthesisEvents[Event::destination_vco]);          itPitchbendEvent.moveToEndOf(pSynthesisEvents[Event::destination_vco]);
742      }      }
743    
744      /**      /**
# Line 595  namespace LinuxSampler { namespace gig { Line 746  namespace LinuxSampler { namespace gig {
746       *  called by the ProcessNoteOn() method and by the voices itself       *  called by the ProcessNoteOn() method and by the voices itself
747       *  (e.g. to spawn further voices on the same key for layered sounds).       *  (e.g. to spawn further voices on the same key for layered sounds).
748       *       *
749       *  @param pNoteOnEvent        - key, velocity and time stamp of the event       *  @param itNoteOnEvent       - key, velocity and time stamp of the event
750       *  @param iLayer              - layer index for the new voice (optional - only       *  @param iLayer              - layer index for the new voice (optional - only
751       *                               in case of layered sounds of course)       *                               in case of layered sounds of course)
752       *  @param ReleaseTriggerVoice - if new voice is a release triggered voice       *  @param ReleaseTriggerVoice - if new voice is a release triggered voice
753       *                               (optional, default = false)       *                               (optional, default = false)
754         *  @param VoiceStealing       - if voice stealing should be performed
755         *                               when there is no free voice
756         *                               (optional, default = true)
757         *  @returns pointer to new voice or NULL if there was no free voice or
758         *           if the voice wasn't triggered (for example when no region is
759         *           defined for the given key).
760       */       */
761      void Engine::LaunchVoice(Event* pNoteOnEvent, int iLayer, bool ReleaseTriggerVoice) {      Pool<Voice>::Iterator Engine::LaunchVoice(Pool<Event>::Iterator& itNoteOnEvent, int iLayer, bool ReleaseTriggerVoice, bool VoiceStealing) {
762          midi_key_info_t* pKey = &pMIDIKeyInfo[pNoteOnEvent->Key];          midi_key_info_t* pKey = &pMIDIKeyInfo[itNoteOnEvent->Param.Note.Key];
763    
764          // allocate a new voice for the key          // allocate a new voice for the key
765          Voice* pNewVoice = pKey->pActiveVoices->alloc();          Pool<Voice>::Iterator itNewVoice = pKey->pActiveVoices->allocAppend();
766          if (pNewVoice) {          if (itNewVoice) {
767              // launch the new voice              // launch the new voice
768              if (pNewVoice->Trigger(pNoteOnEvent, this->Pitch, this->pInstrument, iLayer, ReleaseTriggerVoice) < 0) {              if (itNewVoice->Trigger(itNoteOnEvent, this->Pitch, this->pInstrument, iLayer, ReleaseTriggerVoice, VoiceStealing) < 0) {
769                  dmsg(1,("Triggering new voice failed!\n"));                  dmsg(4,("Voice not triggered\n"));
770                  pKey->pActiveVoices->free(pNewVoice);                  pKey->pActiveVoices->free(itNewVoice);
771              }              }
772              else { // on success              else { // on success
773                  uint** ppKeyGroup = NULL;                  uint** ppKeyGroup = NULL;
774                  if (pNewVoice->KeyGroup) { // if this voice / key belongs to a key group                  if (itNewVoice->KeyGroup) { // if this voice / key belongs to a key group
775                      ppKeyGroup = &ActiveKeyGroups[pNewVoice->KeyGroup];                      ppKeyGroup = &ActiveKeyGroups[itNewVoice->KeyGroup];
776                      if (*ppKeyGroup) { // if there's already an active key in that key group                      if (*ppKeyGroup) { // if there's already an active key in that key group
777                          midi_key_info_t* pOtherKey = &pMIDIKeyInfo[**ppKeyGroup];                          midi_key_info_t* pOtherKey = &pMIDIKeyInfo[**ppKeyGroup];
778                          // kill all voices on the (other) key                          // kill all voices on the (other) key
779                          Voice* pVoiceToBeKilled = pOtherKey->pActiveVoices->first();                          RTList<Voice>::Iterator itVoiceToBeKilled = pOtherKey->pActiveVoices->first();
780                          while (pVoiceToBeKilled) {                          RTList<Voice>::Iterator end               = pOtherKey->pActiveVoices->end();
781                              Voice* pVoiceToBeKilledNext = pOtherKey->pActiveVoices->next();                          for (; itVoiceToBeKilled != end; ++itVoiceToBeKilled) {
782                              if (pVoiceToBeKilled->Type != Voice::type_release_trigger) pVoiceToBeKilled->Kill(pNoteOnEvent);                              if (itVoiceToBeKilled->Type != Voice::type_release_trigger) itVoiceToBeKilled->Kill(itNoteOnEvent);
                             pOtherKey->pActiveVoices->set_current(pVoiceToBeKilled);  
                             pVoiceToBeKilled = pVoiceToBeKilledNext;  
783                          }                          }
784                      }                      }
785                  }                  }
786                  if (!pKey->Active) { // mark as active key                  if (!pKey->Active) { // mark as active key
787                      pKey->Active = true;                      pKey->Active = true;
788                      pKey->pSelf  = pActiveKeys->alloc();                      pKey->itSelf = pActiveKeys->allocAppend();
789                      *pKey->pSelf = pNoteOnEvent->Key;                      *pKey->itSelf = itNoteOnEvent->Param.Note.Key;
790                  }                  }
791                  if (pNewVoice->KeyGroup) {                  if (itNewVoice->KeyGroup) {
792                      *ppKeyGroup = pKey->pSelf; // put key as the (new) active key to its key group                      *ppKeyGroup = &*pKey->itSelf; // put key as the (new) active key to its key group
793                  }                  }
794                  if (pNewVoice->Type == Voice::type_release_trigger_required) pKey->ReleaseTrigger = true; // mark key for the need of release triggered voice(s)                  if (itNewVoice->Type == Voice::type_release_trigger_required) pKey->ReleaseTrigger = true; // mark key for the need of release triggered voice(s)
795                    return itNewVoice; // success
796              }              }
797          }          }
798          else std::cerr << "No free voice!" << std::endl << std::flush;          else if (VoiceStealing) {
799                // first, get total amount of required voices (dependant on amount of layers)
800                ::gig::Region* pRegion = pInstrument->GetRegion(itNoteOnEvent->Param.Note.Key);
801                if (!pRegion) return Pool<Voice>::Iterator(); // nothing defined for this MIDI key, so no voice needed
802                int voicesRequired = pRegion->Layers;
803    
804                // now steal the (remaining) amount of voices
805                for (int i = iLayer; i < voicesRequired; i++)
806                    StealVoice(itNoteOnEvent);
807    
808                // put note-on event into voice-stealing queue, so it will be reprocessed after killed voice died
809                RTList<Event>::Iterator itStealEvent = pVoiceStealingQueue->allocAppend();
810                if (itStealEvent) {
811                    *itStealEvent = *itNoteOnEvent; // copy event
812                    itStealEvent->Param.Note.Layer = iLayer;
813                    itStealEvent->Param.Note.ReleaseTrigger = ReleaseTriggerVoice;
814                }
815                else dmsg(1,("Voice stealing queue full!\n"));
816            }
817    
818            return Pool<Voice>::Iterator(); // no free voice or error
819      }      }
820    
821      /**      /**
822       *  Immediately kills the voice given with pVoice (no matter if sustain is       *  Will be called by LaunchVoice() method in case there are no free
823       *  pressed or not) and removes it from the MIDI key's list of active voice.       *  voices left. This method will select and kill one old voice for
824       *  This method will e.g. be called if a voice went inactive by itself.       *  voice stealing and postpone the note-on event until the selected
825         *  voice actually died.
826       *       *
827       *  @param pVoice - points to the voice to be killed       *  @param itNoteOnEvent - key, velocity and time stamp of the event
828       */       */
829      void Engine::KillVoiceImmediately(Voice* pVoice) {      void Engine::StealVoice(Pool<Event>::Iterator& itNoteOnEvent) {
830          if (pVoice) {          if (!pEventPool->poolIsEmpty()) {
831              if (pVoice->IsActive()) pVoice->KillImmediately();  
832                RTList<uint>::Iterator  iuiOldestKey;
833                RTList<Voice>::Iterator itOldestVoice;
834    
835                // Select one voice for voice stealing
836                switch (VOICE_STEAL_ALGORITHM) {
837    
838                    // try to pick the oldest voice on the key where the new
839                    // voice should be spawned, if there is no voice on that
840                    // key, or no voice left to kill there, then procceed with
841                    // 'oldestkey' algorithm
842                    case voice_steal_algo_keymask: {
843                        midi_key_info_t* pOldestKey = &pMIDIKeyInfo[itNoteOnEvent->Param.Note.Key];
844                        if (itLastStolenVoice) {
845                            itOldestVoice = itLastStolenVoice;
846                            ++itOldestVoice;
847                        }
848                        else { // no voice stolen in this audio fragment cycle yet
849                            itOldestVoice = pOldestKey->pActiveVoices->first();
850                        }
851                        if (itOldestVoice) {
852                            iuiOldestKey = pOldestKey->itSelf;
853                            break; // selection succeeded
854                        }
855                    } // no break - intentional !
856    
857              midi_key_info_t* pKey = &pMIDIKeyInfo[pVoice->MIDIKey];                  // try to pick the oldest voice on the oldest active key
858                    // (caution: must stay after 'keymask' algorithm !)
859                    case voice_steal_algo_oldestkey: {
860                        if (itLastStolenVoice) {
861                            midi_key_info_t* pOldestKey = &pMIDIKeyInfo[*iuiLastStolenKey];
862                            itOldestVoice = itLastStolenVoice;
863                            ++itOldestVoice;
864                            if (!itOldestVoice) {
865                                iuiOldestKey = iuiLastStolenKey;
866                                ++iuiOldestKey;
867                                if (iuiOldestKey) {
868                                    midi_key_info_t* pOldestKey = &pMIDIKeyInfo[*iuiOldestKey];
869                                    itOldestVoice = pOldestKey->pActiveVoices->first();
870                                }
871                                else {
872                                    dmsg(1,("gig::Engine: Warning, too less voices, even for voice stealing! - Better recompile with higher MAX_AUDIO_VOICES.\n"));
873                                    return;
874                                }
875                            }
876                            else iuiOldestKey = iuiLastStolenKey;
877                        }
878                        else { // no voice stolen in this audio fragment cycle yet
879                            iuiOldestKey = pActiveKeys->first();
880                            midi_key_info_t* pOldestKey = &pMIDIKeyInfo[*iuiOldestKey];
881                            itOldestVoice = pOldestKey->pActiveVoices->first();
882                        }
883                        break;
884                    }
885    
886                    // don't steal anything
887                    case voice_steal_algo_none:
888                    default: {
889                        dmsg(1,("No free voice (voice stealing disabled)!\n"));
890                        return;
891                    }
892                }
893    
894                //FIXME: can be removed, just a sanity check for debugging
895                if (!itOldestVoice->IsActive()) dmsg(1,("gig::Engine: ERROR, tried to steal a voice which was not active !!!\n"));
896    
897                // now kill the selected voice
898                itOldestVoice->Kill(itNoteOnEvent);
899                // remember which voice on which key we stole, so we can simply proceed for the next voice stealing
900                this->itLastStolenVoice = itOldestVoice;
901                this->iuiLastStolenKey = iuiOldestKey;
902            }
903            else dmsg(1,("Event pool emtpy!\n"));
904        }
905    
906        /**
907         *  Removes the given voice from the MIDI key's list of active voices.
908         *  This method will be called when a voice went inactive, e.g. because
909         *  it finished to playback its sample, finished its release stage or
910         *  just was killed.
911         *
912         *  @param itVoice - points to the voice to be freed
913         */
914        void Engine::FreeVoice(Pool<Voice>::Iterator& itVoice) {
915            if (itVoice) {
916                midi_key_info_t* pKey = &pMIDIKeyInfo[itVoice->MIDIKey];
917    
918                uint keygroup = itVoice->KeyGroup;
919    
920              // free the voice object              // free the voice object
921              pVoicePool->free(pVoice);              pVoicePool->free(itVoice);
922    
923              // check if there are no voices left on the MIDI key and update the key info if so              // if no other voices left and member of a key group, remove from key group
924              if (pKey->pActiveVoices->is_empty()) {              if (pKey->pActiveVoices->isEmpty() && keygroup) {
925                  if (pVoice->KeyGroup) { // if voice / key belongs to a key group                  uint** ppKeyGroup = &ActiveKeyGroups[keygroup];
926                      uint** ppKeyGroup = &ActiveKeyGroups[pVoice->KeyGroup];                  if (*ppKeyGroup == &*pKey->itSelf) *ppKeyGroup = NULL; // remove key from key group
                     if (*ppKeyGroup == pKey->pSelf) *ppKeyGroup = NULL; // remove key from key group  
                 }  
                 pKey->Active = false;  
                 pActiveKeys->free(pKey->pSelf); // remove key from list of active keys  
                 pKey->pSelf = NULL;  
                 pKey->ReleaseTrigger = false;  
                 dmsg(3,("Key has no more voices now\n"));  
927              }              }
928          }          }
929          else std::cerr << "Couldn't release voice! (pVoice == NULL)\n" << std::flush;          else std::cerr << "Couldn't release voice! (!itVoice)\n" << std::flush;
930        }
931    
932        /**
933         *  Called when there's no more voice left on a key, this call will
934         *  update the key info respectively.
935         *
936         *  @param pKey - key which is now inactive
937         */
938        void Engine::FreeKey(midi_key_info_t* pKey) {
939            if (pKey->pActiveVoices->isEmpty()) {
940                pKey->Active = false;
941                pActiveKeys->free(pKey->itSelf); // remove key from list of active keys
942                pKey->itSelf = RTList<uint>::Iterator();
943                pKey->ReleaseTrigger = false;
944                pKey->pEvents->clear();
945                dmsg(3,("Key has no more voices now\n"));
946            }
947            else dmsg(1,("gig::Engine: Oops, tried to free a key which contains voices.\n"));
948      }      }
949    
950      /**      /**
951       *  Reacts on supported control change commands (e.g. pitch bend wheel,       *  Reacts on supported control change commands (e.g. pitch bend wheel,
952       *  modulation wheel, aftertouch).       *  modulation wheel, aftertouch).
953       *       *
954       *  @param pControlChangeEvent - controller, value and time stamp of the event       *  @param itControlChangeEvent - controller, value and time stamp of the event
955       */       */
956      void Engine::ProcessControlChange(Event* pControlChangeEvent) {      void Engine::ProcessControlChange(Pool<Event>::Iterator& itControlChangeEvent) {
957          dmsg(4,("Engine::ContinuousController cc=%d v=%d\n", pControlChangeEvent->Controller, pControlChangeEvent->Value));          dmsg(4,("Engine::ContinuousController cc=%d v=%d\n", itControlChangeEvent->Param.CC.Controller, itControlChangeEvent->Param.CC.Value));
958    
959          switch (pControlChangeEvent->Controller) {          switch (itControlChangeEvent->Param.CC.Controller) {
960              case 64: {              case 64: {
961                  if (pControlChangeEvent->Value >= 64 && !SustainPedal) {                  if (itControlChangeEvent->Param.CC.Value >= 64 && !SustainPedal) {
962                      dmsg(4,("PEDAL DOWN\n"));                      dmsg(4,("PEDAL DOWN\n"));
963                      SustainPedal = true;                      SustainPedal = true;
964    
965                      // cancel release process of voices if necessary                      // cancel release process of voices if necessary
966                      uint* piKey = pActiveKeys->first();                      RTList<uint>::Iterator iuiKey = pActiveKeys->first();
967                      if (piKey) {                      if (iuiKey) {
968                          pControlChangeEvent->Type = Event::type_cancel_release; // transform event type                          itControlChangeEvent->Type = Event::type_cancel_release; // transform event type
969                          while (piKey) {                          while (iuiKey) {
970                              midi_key_info_t* pKey = &pMIDIKeyInfo[*piKey];                              midi_key_info_t* pKey = &pMIDIKeyInfo[*iuiKey];
971                              pActiveKeys->set_current(piKey);                              ++iuiKey;
                             piKey = pActiveKeys->next();  
972                              if (!pKey->KeyPressed) {                              if (!pKey->KeyPressed) {
973                                  Event* pNewEvent = pKey->pEvents->alloc();                                  RTList<Event>::Iterator itNewEvent = pKey->pEvents->allocAppend();
974                                  if (pNewEvent) *pNewEvent = *pControlChangeEvent; // copy event to the key's own event list                                  if (itNewEvent) *itNewEvent = *itControlChangeEvent; // copy event to the key's own event list
975                                  else dmsg(1,("Event pool emtpy!\n"));                                  else dmsg(1,("Event pool emtpy!\n"));
976                              }                              }
977                          }                          }
978                      }                      }
979                  }                  }
980                  if (pControlChangeEvent->Value < 64 && SustainPedal) {                  if (itControlChangeEvent->Param.CC.Value < 64 && SustainPedal) {
981                      dmsg(4,("PEDAL UP\n"));                      dmsg(4,("PEDAL UP\n"));
982                      SustainPedal = false;                      SustainPedal = false;
983    
984                      // release voices if their respective key is not pressed                      // release voices if their respective key is not pressed
985                      uint* piKey = pActiveKeys->first();                      RTList<uint>::Iterator iuiKey = pActiveKeys->first();
986                      if (piKey) {                      if (iuiKey) {
987                          pControlChangeEvent->Type = Event::type_release; // transform event type                          itControlChangeEvent->Type = Event::type_release; // transform event type
988                          while (piKey) {                          while (iuiKey) {
989                              midi_key_info_t* pKey = &pMIDIKeyInfo[*piKey];                              midi_key_info_t* pKey = &pMIDIKeyInfo[*iuiKey];
990                              pActiveKeys->set_current(piKey);                              ++iuiKey;
                             piKey = pActiveKeys->next();  
991                              if (!pKey->KeyPressed) {                              if (!pKey->KeyPressed) {
992                                  Event* pNewEvent = pKey->pEvents->alloc();                                  RTList<Event>::Iterator itNewEvent = pKey->pEvents->allocAppend();
993                                  if (pNewEvent) *pNewEvent = *pControlChangeEvent; // copy event to the key's own event list                                  if (itNewEvent) *itNewEvent = *itControlChangeEvent; // copy event to the key's own event list
994                                  else dmsg(1,("Event pool emtpy!\n"));                                  else dmsg(1,("Event pool emtpy!\n"));
995                              }                              }
996                          }                          }
# Line 730  namespace LinuxSampler { namespace gig { Line 1001  namespace LinuxSampler { namespace gig {
1001          }          }
1002    
1003          // update controller value in the engine's controller table          // update controller value in the engine's controller table
1004          ControllerTable[pControlChangeEvent->Controller] = pControlChangeEvent->Value;          ControllerTable[itControlChangeEvent->Param.CC.Controller] = itControlChangeEvent->Param.CC.Value;
1005    
1006          // 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
1007          pEvents->move(pControlChangeEvent, pCCEvents);          itControlChangeEvent.moveToEndOf(pCCEvents);
1008        }
1009    
1010        /**
1011         *  Reacts on MIDI system exclusive messages.
1012         *
1013         *  @param itSysexEvent - sysex data size and time stamp of the sysex event
1014         */
1015        void Engine::ProcessSysex(Pool<Event>::Iterator& itSysexEvent) {
1016            RingBuffer<uint8_t>::NonVolatileReader reader = pSysexBuffer->get_non_volatile_reader();
1017    
1018            uint8_t exclusive_status, id;
1019            if (!reader.pop(&exclusive_status)) goto free_sysex_data;
1020            if (!reader.pop(&id))               goto free_sysex_data;
1021            if (exclusive_status != 0xF0)       goto free_sysex_data;
1022    
1023            switch (id) {
1024                case 0x41: { // Roland
1025                    uint8_t device_id, model_id, cmd_id;
1026                    if (!reader.pop(&device_id)) goto free_sysex_data;
1027                    if (!reader.pop(&model_id))  goto free_sysex_data;
1028                    if (!reader.pop(&cmd_id))    goto free_sysex_data;
1029                    if (model_id != 0x42 /*GS*/) goto free_sysex_data;
1030                    if (cmd_id != 0x12 /*DT1*/)  goto free_sysex_data;
1031    
1032                    // command address
1033                    uint8_t addr[3]; // 2 byte addr MSB, followed by 1 byte addr LSB)
1034                    const RingBuffer<uint8_t>::NonVolatileReader checksum_reader = reader; // so we can calculate the check sum later
1035                    if (reader.read(&addr[0], 3) != 3) goto free_sysex_data;
1036                    if (addr[0] == 0x40 && addr[1] == 0x00) { // System Parameters
1037                    }
1038                    else if (addr[0] == 0x40 && addr[1] == 0x01) { // Common Parameters
1039                    }
1040                    else if (addr[0] == 0x40 && (addr[1] & 0xf0) == 0x10) { // Part Parameters (1)
1041                        switch (addr[3]) {
1042                            case 0x40: { // scale tuning
1043                                uint8_t scale_tunes[12]; // detuning of all 12 semitones of an octave
1044                                if (reader.read(&scale_tunes[0], 12) != 12) goto free_sysex_data;
1045                                uint8_t checksum;
1046                                if (!reader.pop(&checksum))                      goto free_sysex_data;
1047                                if (GSCheckSum(checksum_reader, 12) != checksum) goto free_sysex_data;
1048                                for (int i = 0; i < 12; i++) scale_tunes[i] -= 64;
1049                                AdjustScale((int8_t*) scale_tunes);
1050                                break;
1051                            }
1052                        }
1053                    }
1054                    else if (addr[0] == 0x40 && (addr[1] & 0xf0) == 0x20) { // Part Parameters (2)
1055                    }
1056                    else if (addr[0] == 0x41) { // Drum Setup Parameters
1057                    }
1058                    break;
1059                }
1060            }
1061    
1062            free_sysex_data: // finally free sysex data
1063            pSysexBuffer->increment_read_ptr(itSysexEvent->Param.Sysex.Size);
1064        }
1065    
1066        /**
1067         * Calculates the Roland GS sysex check sum.
1068         *
1069         * @param AddrReader - reader which currently points to the first GS
1070         *                     command address byte of the GS sysex message in
1071         *                     question
1072         * @param DataSize   - size of the GS message data (in bytes)
1073         */
1074        uint8_t Engine::GSCheckSum(const RingBuffer<uint8_t>::NonVolatileReader AddrReader, uint DataSize) {
1075            RingBuffer<uint8_t>::NonVolatileReader reader = AddrReader;
1076            uint bytes = 3 /*addr*/ + DataSize;
1077            uint8_t addr_and_data[bytes];
1078            reader.read(&addr_and_data[0], bytes);
1079            uint8_t sum = 0;
1080            for (uint i = 0; i < bytes; i++) sum += addr_and_data[i];
1081            return 128 - sum % 128;
1082        }
1083    
1084        /**
1085         * Allows to tune each of the twelve semitones of an octave.
1086         *
1087         * @param ScaleTunes - detuning of all twelve semitones (in cents)
1088         */
1089        void Engine::AdjustScale(int8_t ScaleTunes[12]) {
1090            memcpy(&this->ScaleTuning[0], &ScaleTunes[0], 12); //TODO: currently not sample accurate
1091      }      }
1092    
1093      /**      /**
# Line 840  namespace LinuxSampler { namespace gig { Line 1194  namespace LinuxSampler { namespace gig {
1194      }      }
1195    
1196      String Engine::Version() {      String Engine::Version() {
1197          String s = "$Revision: 1.11 $";          String s = "$Revision: 1.23 $";
1198          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
1199      }      }
1200    
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