/[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 392 by schoenebeck, Sat Feb 19 02:40:24 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 189  namespace LinuxSampler { namespace gig { Line 215  namespace LinuxSampler { namespace gig {
215      }      }
216    
217      /**      /**
218       *  Load an instrument from a .gig file.       * More or less a workaround to set the instrument name, index and load
219         * status variable to zero percent immediately, that is without blocking
220         * the calling thread. It might be used in future for other preparations
221         * as well though.
222       *       *
223       *  @param FileName   - file name of the Gigasampler instrument file       * @param FileName   - file name of the Gigasampler instrument file
224       *  @param Instrument - index of the instrument in the .gig file       * @param Instrument - index of the instrument in the .gig file
225       *  @throws LinuxSamplerException  on error       * @see LoadInstrument()
      *  @returns          detailed description of the method call result  
226       */       */
227      void Engine::LoadInstrument(const char* FileName, uint Instrument) {      void Engine::PrepareLoadInstrument(const char* FileName, uint Instrument) {
228            InstrumentFile = FileName;
229            InstrumentIdx  = Instrument;
230            InstrumentStat = 0;
231        }
232    
233        /**
234         * Load an instrument from a .gig file. PrepareLoadInstrument() has to
235         * be called first to provide the information which instrument to load.
236         * This method will then actually start to load the instrument and block
237         * the calling thread until loading was completed.
238         *
239         * @returns detailed description of the method call result
240         * @see PrepareLoadInstrument()
241         */
242        void Engine::LoadInstrument() {
243    
244          DisableAndLock();          DisableAndLock();
245    
# Line 208  namespace LinuxSampler { namespace gig { Line 251  namespace LinuxSampler { namespace gig {
251              Instruments.HandBack(pInstrument, this);              Instruments.HandBack(pInstrument, this);
252          }          }
253    
         InstrumentFile = FileName;  
         InstrumentIdx = Instrument;  
         InstrumentStat = 0;  
   
254          // delete all key groups          // delete all key groups
255          ActiveKeyGroups.clear();          ActiveKeyGroups.clear();
256    
257          // request gig instrument from instrument manager          // request gig instrument from instrument manager
258          try {          try {
259              instrument_id_t instrid;              instrument_id_t instrid;
260              instrid.FileName    = FileName;              instrid.FileName    = InstrumentFile;
261              instrid.iInstrument = Instrument;              instrid.iInstrument = InstrumentIdx;
262              pInstrument = Instruments.Borrow(instrid, this);              pInstrument = Instruments.Borrow(instrid, this);
263              if (!pInstrument) {              if (!pInstrument) {
264                  InstrumentStat = -1;                  InstrumentStat = -1;
# Line 246  namespace LinuxSampler { namespace gig { Line 285  namespace LinuxSampler { namespace gig {
285          for (::gig::Region* pRegion = pInstrument->GetFirstRegion(); pRegion; pRegion = pInstrument->GetNextRegion())          for (::gig::Region* pRegion = pInstrument->GetFirstRegion(); pRegion; pRegion = pInstrument->GetNextRegion())
286              if (pRegion->KeyGroup) ActiveKeyGroups[pRegion->KeyGroup] = NULL;              if (pRegion->KeyGroup) ActiveKeyGroups[pRegion->KeyGroup] = NULL;
287    
288            InstrumentIdxName = pInstrument->pInfo->Name;
289          InstrumentStat = 100;          InstrumentStat = 100;
290    
291          // inform audio driver for the need of two channels          // inform audio driver for the need of two channels
# Line 302  namespace LinuxSampler { namespace gig { Line 342  namespace LinuxSampler { namespace gig {
342          this->MaxSamplesPerCycle      = pAudioOutputDevice->MaxSamplesPerCycle();          this->MaxSamplesPerCycle      = pAudioOutputDevice->MaxSamplesPerCycle();
343          this->SampleRate              = pAudioOutputDevice->SampleRate();          this->SampleRate              = pAudioOutputDevice->SampleRate();
344    
345            // FIXME: audio drivers with varying fragment sizes might be a problem here
346            MaxFadeOutPos = MaxSamplesPerCycle - int(double(SampleRate) * EG_MIN_RELEASE_TIME) - 1;
347            if (MaxFadeOutPos < 0)
348                throw LinuxSamplerException("EG_MIN_RELEASE_TIME in EGADSR.h to big for current audio fragment size / sampling rate!");
349    
350          // (re)create disk thread          // (re)create disk thread
351          if (this->pDiskThread) {          if (this->pDiskThread) {
352                dmsg(1,("Stopping disk thread..."));
353              this->pDiskThread->StopThread();              this->pDiskThread->StopThread();
354              delete this->pDiskThread;              delete this->pDiskThread;
355                dmsg(1,("OK\n"));
356          }          }
357          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
358          if (!pDiskThread) {          if (!pDiskThread) {
# Line 313  namespace LinuxSampler { namespace gig { Line 360  namespace LinuxSampler { namespace gig {
360              exit(EXIT_FAILURE);              exit(EXIT_FAILURE);
361          }          }
362    
363          for (Voice* pVoice = pVoicePool->alloc(); pVoice; pVoice = pVoicePool->alloc()) {          for (RTList<Voice>::Iterator iterVoice = pVoicePool->allocAppend(); iterVoice == pVoicePool->last(); iterVoice = pVoicePool->allocAppend()) {
364              pVoice->pDiskThread = this->pDiskThread;              iterVoice->pDiskThread = this->pDiskThread;
365              dmsg(3,("d"));              dmsg(3,("d"));
366          }          }
367          pVoicePool->clear();          pVoicePool->clear();
# Line 324  namespace LinuxSampler { namespace gig { Line 371  namespace LinuxSampler { namespace gig {
371          pEventGenerator = new EventGenerator(pAudioOut->SampleRate());          pEventGenerator = new EventGenerator(pAudioOut->SampleRate());
372    
373          // (re)allocate synthesis parameter matrix          // (re)allocate synthesis parameter matrix
374          if (pSynthesisParameters[0]) delete[] pSynthesisParameters[0];          if (pSynthesisParameters[0]) free(pSynthesisParameters[0]);
375          pSynthesisParameters[0] = new float[Event::destination_count * pAudioOut->MaxSamplesPerCycle()];  
376            #if defined(__APPLE__)
377            pSynthesisParameters[0] = (float *) malloc(Event::destination_count * sizeof(float) * pAudioOut->MaxSamplesPerCycle());
378            #else
379            pSynthesisParameters[0] = (float *) memalign(16,(Event::destination_count * sizeof(float) * pAudioOut->MaxSamplesPerCycle()));
380            #endif
381          for (int dst = 1; dst < Event::destination_count; dst++)          for (int dst = 1; dst < Event::destination_count; dst++)
382              pSynthesisParameters[dst] = pSynthesisParameters[dst - 1] + pAudioOut->MaxSamplesPerCycle();              pSynthesisParameters[dst] = pSynthesisParameters[dst - 1] + pAudioOut->MaxSamplesPerCycle();
383    
# Line 339  namespace LinuxSampler { namespace gig { Line 391  namespace LinuxSampler { namespace gig {
391          pDiskThread->StartThread();          pDiskThread->StartThread();
392          dmsg(1,("OK\n"));          dmsg(1,("OK\n"));
393    
394          for (Voice* pVoice = pVoicePool->first(); pVoice; pVoice = pVoicePool->next()) {          for (RTList<Voice>::Iterator iterVoice = pVoicePool->allocAppend(); iterVoice == pVoicePool->last(); iterVoice = pVoicePool->allocAppend()) {
395              if (!pVoice->pDiskThread) {              if (!iterVoice->pDiskThread) {
396                  dmsg(0,("Engine -> voice::trigger: !pDiskThread\n"));                  dmsg(0,("Engine -> voice::trigger: !pDiskThread\n"));
397                  exit(EXIT_FAILURE);                  exit(EXIT_FAILURE);
398              }              }
# Line 381  namespace LinuxSampler { namespace gig { Line 433  namespace LinuxSampler { namespace gig {
433          }          }
434    
435    
436            // update time of start and end of this audio fragment (as events' time stamps relate to this)
437            pEventGenerator->UpdateFragmentTime(Samples);
438    
439    
440          // empty the event lists for the new fragment          // empty the event lists for the new fragment
441          pEvents->clear();          pEvents->clear();
442          pCCEvents->clear();          pCCEvents->clear();
443          for (uint i = 0; i < Event::destination_count; i++) {          for (uint i = 0; i < Event::destination_count; i++) {
444              pSynthesisEvents[i]->clear();              pSynthesisEvents[i]->clear();
445          }          }
446            {
447          // read and copy events from input queue              RTList<uint>::Iterator iuiKey = pActiveKeys->first();
448          Event event = pEventGenerator->CreateEvent();              RTList<uint>::Iterator end    = pActiveKeys->end();
449          while (true) {              for(; iuiKey != end; ++iuiKey) {
450              if (!pEventQueue->pop(&event)) break;                  pMIDIKeyInfo[*iuiKey].pEvents->clear(); // free all events on the key
451              pEvents->alloc_assign(event);              }
452          }          }
453    
454    
455          // 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
456          pEventGenerator->UpdateFragmentTime(Samples);          {
457                RingBuffer<Event>::NonVolatileReader eventQueueReader = pEventQueue->get_non_volatile_reader();
458                Event* pEvent;
459                while (true) {
460                    // get next event from input event queue
461                    if (!(pEvent = eventQueueReader.pop())) break;
462                    // if younger event reached, ignore that and all subsequent ones for now
463                    if (pEvent->FragmentPos() >= Samples) {
464                        eventQueueReader--;
465                        dmsg(2,("Younger Event, pos=%d ,Samples=%d!\n",pEvent->FragmentPos(),Samples));
466                        pEvent->ResetFragmentPos();
467                        break;
468                    }
469                    // copy event to internal event list
470                    if (pEvents->poolIsEmpty()) {
471                        dmsg(1,("Event pool emtpy!\n"));
472                        break;
473                    }
474                    *pEvents->allocAppend() = *pEvent;
475                }
476                eventQueueReader.free(); // free all copied events from input queue
477            }
478    
479    
480          // process events          // process events
481          Event* pNextEvent = pEvents->first();          {
482          while (pNextEvent) {              RTList<Event>::Iterator itEvent = pEvents->first();
483              Event* pEvent = pNextEvent;              RTList<Event>::Iterator end     = pEvents->end();
484              pEvents->set_current(pEvent);              for (; itEvent != end; ++itEvent) {
485              pNextEvent = pEvents->next();                  switch (itEvent->Type) {
486              switch (pEvent->Type) {                      case Event::type_note_on:
487                  case Event::type_note_on:                          dmsg(5,("Engine: Note on received\n"));
488                      dmsg(5,("Audio Thread: Note on received\n"));                          ProcessNoteOn(itEvent);
489                      ProcessNoteOn(pEvent);                          break;
490                      break;                      case Event::type_note_off:
491                  case Event::type_note_off:                          dmsg(5,("Engine: Note off received\n"));
492                      dmsg(5,("Audio Thread: Note off received\n"));                          ProcessNoteOff(itEvent);
493                      ProcessNoteOff(pEvent);                          break;
494                      break;                      case Event::type_control_change:
495                  case Event::type_control_change:                          dmsg(5,("Engine: MIDI CC received\n"));
496                      dmsg(5,("Audio Thread: MIDI CC received\n"));                          ProcessControlChange(itEvent);
497                      ProcessControlChange(pEvent);                          break;
498                      break;                      case Event::type_pitchbend:
499                  case Event::type_pitchbend:                          dmsg(5,("Engine: Pitchbend received\n"));
500                      dmsg(5,("Audio Thread: Pitchbend received\n"));                          ProcessPitchbend(itEvent);
501                      ProcessPitchbend(pEvent);                          break;
502                      break;                      case Event::type_sysex:
503                            dmsg(5,("Engine: Sysex received\n"));
504                            ProcessSysex(itEvent);
505                            break;
506                    }
507              }              }
508          }          }
509    
510    
         // render audio from all active voices  
511          int active_voices = 0;          int active_voices = 0;
512          uint* piKey = pActiveKeys->first();  
513          while (piKey) { // iterate through all active keys          // render audio from all active voices
514              midi_key_info_t* pKey = &pMIDIKeyInfo[*piKey];          {
515              pActiveKeys->set_current(piKey);              RTList<uint>::Iterator iuiKey = pActiveKeys->first();
516              piKey = pActiveKeys->next();              RTList<uint>::Iterator end    = pActiveKeys->end();
517                while (iuiKey != end) { // iterate through all active keys
518              Voice* pVoiceNext = pKey->pActiveVoices->first();                  midi_key_info_t* pKey = &pMIDIKeyInfo[*iuiKey];
519              while (pVoiceNext) { // iterate through all voices on this key                  ++iuiKey;
520                  // already get next voice on key  
521                  Voice* pVoice = pVoiceNext;                  RTList<Voice>::Iterator itVoice     = pKey->pActiveVoices->first();
522                  pKey->pActiveVoices->set_current(pVoice);                  RTList<Voice>::Iterator itVoicesEnd = pKey->pActiveVoices->end();
523                  pVoiceNext = pKey->pActiveVoices->next();                  for (; itVoice != itVoicesEnd; ++itVoice) { // iterate through all voices on this key
524                        // now render current voice
525                  // now render current voice                      itVoice->Render(Samples);
526                  pVoice->Render(Samples);                      if (itVoice->IsActive()) active_voices++; // still active
527                  if (pVoice->IsActive()) active_voices++; // still active                      else { // voice reached end, is now inactive
528                  else { // voice reached end, is now inactive                          FreeVoice(itVoice); // remove voice from the list of active voices
529                      KillVoiceImmediately(pVoice); // remove voice from the list of active voices                      }
530                  }                  }
531              }              }
532              pKey->pEvents->clear(); // free all events on the key          }
533    
534    
535            // now render all postponed voices from voice stealing
536            {
537                RTList<Event>::Iterator itVoiceStealEvent = pVoiceStealingQueue->first();
538                RTList<Event>::Iterator end               = pVoiceStealingQueue->end();
539                for (; itVoiceStealEvent != end; ++itVoiceStealEvent) {
540                    Pool<Voice>::Iterator itNewVoice = LaunchVoice(itVoiceStealEvent, itVoiceStealEvent->Param.Note.Layer, itVoiceStealEvent->Param.Note.ReleaseTrigger, false);
541                    if (itNewVoice) {
542                        for (; itNewVoice; itNewVoice = itNewVoice->itChildVoice) {
543                            itNewVoice->Render(Samples);
544                            if (itNewVoice->IsActive()) active_voices++; // still active
545                            else { // voice reached end, is now inactive
546                                FreeVoice(itNewVoice); // remove voice from the list of active voices
547                            }
548                        }
549                    }
550                    else dmsg(1,("gig::Engine: ERROR, voice stealing didn't work out!\n"));
551                }
552            }
553            // reset voice stealing for the new fragment
554            pVoiceStealingQueue->clear();
555            itLastStolenVoice = RTList<Voice>::Iterator();
556            iuiLastStolenKey  = RTList<uint>::Iterator();
557    
558    
559            // free all keys which have no active voices left
560            {
561                RTList<uint>::Iterator iuiKey = pActiveKeys->first();
562                RTList<uint>::Iterator end    = pActiveKeys->end();
563                while (iuiKey != end) { // iterate through all active keys
564                    midi_key_info_t* pKey = &pMIDIKeyInfo[*iuiKey];
565                    ++iuiKey;
566                    if (pKey->pActiveVoices->isEmpty()) FreeKey(pKey);
567                    #if DEVMODE
568                    else { // FIXME: should be removed before the final release (purpose: just a sanity check for debugging)
569                        RTList<Voice>::Iterator itVoice     = pKey->pActiveVoices->first();
570                        RTList<Voice>::Iterator itVoicesEnd = pKey->pActiveVoices->end();
571                        for (; itVoice != itVoicesEnd; ++itVoice) { // iterate through all voices on this key
572                            if (itVoice->itKillEvent) {
573                                dmsg(1,("gig::Engine: ERROR, killed voice survived !!!\n"));
574                            }
575                        }
576                    }
577                    #endif // DEVMODE
578                }
579          }          }
580    
581    
# Line 470  namespace LinuxSampler { namespace gig { Line 596  namespace LinuxSampler { namespace gig {
596       *  @param Velocity - MIDI velocity value of the triggered key       *  @param Velocity - MIDI velocity value of the triggered key
597       */       */
598      void Engine::SendNoteOn(uint8_t Key, uint8_t Velocity) {      void Engine::SendNoteOn(uint8_t Key, uint8_t Velocity) {
599          Event event    = pEventGenerator->CreateEvent();          Event event               = pEventGenerator->CreateEvent();
600          event.Type     = Event::type_note_on;          event.Type                = Event::type_note_on;
601          event.Key      = Key;          event.Param.Note.Key      = Key;
602          event.Velocity = Velocity;          event.Param.Note.Velocity = Velocity;
603          if (this->pEventQueue->write_space() > 0) this->pEventQueue->push(&event);          if (this->pEventQueue->write_space() > 0) this->pEventQueue->push(&event);
604          else dmsg(1,("Engine: Input event queue full!"));          else dmsg(1,("Engine: Input event queue full!"));
605      }      }
# Line 486  namespace LinuxSampler { namespace gig { Line 612  namespace LinuxSampler { namespace gig {
612       *  @param Velocity - MIDI release velocity value of the released key       *  @param Velocity - MIDI release velocity value of the released key
613       */       */
614      void Engine::SendNoteOff(uint8_t Key, uint8_t Velocity) {      void Engine::SendNoteOff(uint8_t Key, uint8_t Velocity) {
615          Event event    = pEventGenerator->CreateEvent();          Event event               = pEventGenerator->CreateEvent();
616          event.Type     = Event::type_note_off;          event.Type                = Event::type_note_off;
617          event.Key      = Key;          event.Param.Note.Key      = Key;
618          event.Velocity = Velocity;          event.Param.Note.Velocity = Velocity;
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 501  namespace LinuxSampler { namespace gig { Line 627  namespace LinuxSampler { namespace gig {
627       *  @param Pitch - MIDI pitch value (-8192 ... +8191)       *  @param Pitch - MIDI pitch value (-8192 ... +8191)
628       */       */
629      void Engine::SendPitchbend(int Pitch) {      void Engine::SendPitchbend(int Pitch) {
630          Event event = pEventGenerator->CreateEvent();          Event event             = pEventGenerator->CreateEvent();
631          event.Type  = Event::type_pitchbend;          event.Type              = Event::type_pitchbend;
632          event.Pitch = Pitch;          event.Param.Pitch.Pitch = Pitch;
633          if (this->pEventQueue->write_space() > 0) this->pEventQueue->push(&event);          if (this->pEventQueue->write_space() > 0) this->pEventQueue->push(&event);
634          else dmsg(1,("Engine: Input event queue full!"));          else dmsg(1,("Engine: Input event queue full!"));
635      }      }
# Line 516  namespace LinuxSampler { namespace gig { Line 642  namespace LinuxSampler { namespace gig {
642       *  @param Value      - value of the control change       *  @param Value      - value of the control change
643       */       */
644      void Engine::SendControlChange(uint8_t Controller, uint8_t Value) {      void Engine::SendControlChange(uint8_t Controller, uint8_t Value) {
645          Event event      = pEventGenerator->CreateEvent();          Event event               = pEventGenerator->CreateEvent();
646          event.Type       = Event::type_control_change;          event.Type                = Event::type_control_change;
647          event.Controller = Controller;          event.Param.CC.Controller = Controller;
648          event.Value      = Value;          event.Param.CC.Value      = Value;
649          if (this->pEventQueue->write_space() > 0) this->pEventQueue->push(&event);          if (this->pEventQueue->write_space() > 0) this->pEventQueue->push(&event);
650          else dmsg(1,("Engine: Input event queue full!"));          else dmsg(1,("Engine: Input event queue full!"));
651      }      }
652    
653      /**      /**
654         *  Will be called by the MIDI input device whenever a MIDI system
655         *  exclusive message has arrived.
656         *
657         *  @param pData - pointer to sysex data
658         *  @param Size  - lenght of sysex data (in bytes)
659         */
660        void Engine::SendSysex(void* pData, uint Size) {
661            Event event             = pEventGenerator->CreateEvent();
662            event.Type              = Event::type_sysex;
663            event.Param.Sysex.Size  = Size;
664            if (pEventQueue->write_space() > 0) {
665                if (pSysexBuffer->write_space() >= Size) {
666                    // copy sysex data to input buffer
667                    uint toWrite = Size;
668                    uint8_t* pPos = (uint8_t*) pData;
669                    while (toWrite) {
670                        const uint writeNow = RTMath::Min(toWrite, pSysexBuffer->write_space_to_end());
671                        pSysexBuffer->write(pPos, writeNow);
672                        toWrite -= writeNow;
673                        pPos    += writeNow;
674    
675                    }
676                    // finally place sysex event into input event queue
677                    pEventQueue->push(&event);
678                }
679                else dmsg(1,("Engine: Sysex message too large (%d byte) for input buffer (%d byte)!",Size,SYSEX_BUFFER_SIZE));
680            }
681            else dmsg(1,("Engine: Input event queue full!"));
682        }
683    
684        /**
685       *  Assigns and triggers a new voice for the respective MIDI key.       *  Assigns and triggers a new voice for the respective MIDI key.
686       *       *
687       *  @param pNoteOnEvent - key, velocity and time stamp of the event       *  @param itNoteOnEvent - key, velocity and time stamp of the event
688       */       */
689      void Engine::ProcessNoteOn(Event* pNoteOnEvent) {      void Engine::ProcessNoteOn(Pool<Event>::Iterator& itNoteOnEvent) {
690          midi_key_info_t* pKey = &pMIDIKeyInfo[pNoteOnEvent->Key];  
691            const int key = itNoteOnEvent->Param.Note.Key;
692    
693            // Change key dimension value if key is in keyswitching area
694            if (key >= pInstrument->DimensionKeyRange.low && key <= pInstrument->DimensionKeyRange.high)
695                CurrentKeyDimension = ((key - pInstrument->DimensionKeyRange.low) * 128) /
696                    (pInstrument->DimensionKeyRange.high - pInstrument->DimensionKeyRange.low + 1);
697    
698            midi_key_info_t* pKey = &pMIDIKeyInfo[key];
699    
700          pKey->KeyPressed = true; // the MIDI key was now pressed down          pKey->KeyPressed = true; // the MIDI key was now pressed down
701    
702          // cancel release process of voices on this key if needed          // cancel release process of voices on this key if needed
703          if (pKey->Active && !SustainPedal) {          if (pKey->Active && !SustainPedal) {
704              Event* pCancelReleaseEvent = pKey->pEvents->alloc();              RTList<Event>::Iterator itCancelReleaseEvent = pKey->pEvents->allocAppend();
705              if (pCancelReleaseEvent) {              if (itCancelReleaseEvent) {
706                  *pCancelReleaseEvent = *pNoteOnEvent;                  *itCancelReleaseEvent = *itNoteOnEvent;                  // copy event
707                  pCancelReleaseEvent->Type = Event::type_cancel_release; // transform event type                  itCancelReleaseEvent->Type = Event::type_cancel_release; // transform event type
708              }              }
709              else dmsg(1,("Event pool emtpy!\n"));              else dmsg(1,("Event pool emtpy!\n"));
710          }          }
711    
712          // allocate and trigger a new voice for the key          // move note on event to the key's own event list
713          LaunchVoice(pNoteOnEvent);          RTList<Event>::Iterator itNoteOnEventOnKeyList = itNoteOnEvent.moveToEndOf(pKey->pEvents);
714    
715          // finally move note on event to the key's own event list          // allocate and trigger a new voice for the key
716          pEvents->move(pNoteOnEvent, pKey->pEvents);          LaunchVoice(itNoteOnEventOnKeyList, 0, false, true);
717      }      }
718    
719      /**      /**
# Line 557  namespace LinuxSampler { namespace gig { Line 722  namespace LinuxSampler { namespace gig {
722       *  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.
723       *  due to completion of sample playback).       *  due to completion of sample playback).
724       *       *
725       *  @param pNoteOffEvent - key, velocity and time stamp of the event       *  @param itNoteOffEvent - key, velocity and time stamp of the event
726       */       */
727      void Engine::ProcessNoteOff(Event* pNoteOffEvent) {      void Engine::ProcessNoteOff(Pool<Event>::Iterator& itNoteOffEvent) {
728          midi_key_info_t* pKey = &pMIDIKeyInfo[pNoteOffEvent->Key];          midi_key_info_t* pKey = &pMIDIKeyInfo[itNoteOffEvent->Param.Note.Key];
729    
730          pKey->KeyPressed = false; // the MIDI key was now released          pKey->KeyPressed = false; // the MIDI key was now released
731    
732          // release voices on this key if needed          // release voices on this key if needed
733          if (pKey->Active && !SustainPedal) {          if (pKey->Active && !SustainPedal) {
734              pNoteOffEvent->Type = Event::type_release; // transform event type              itNoteOffEvent->Type = Event::type_release; // transform event type
735          }          }
736    
737            // move event to the key's own event list
738            RTList<Event>::Iterator itNoteOffEventOnKeyList = itNoteOffEvent.moveToEndOf(pKey->pEvents);
739    
740          // spawn release triggered voice(s) if needed          // spawn release triggered voice(s) if needed
741          if (pKey->ReleaseTrigger) {          if (pKey->ReleaseTrigger) {
742              LaunchVoice(pNoteOffEvent, 0, true);              LaunchVoice(itNoteOffEventOnKeyList, 0, true, false); //FIXME: for the moment we don't perform voice stealing for release triggered samples
743              pKey->ReleaseTrigger = false;              pKey->ReleaseTrigger = false;
744          }          }
   
         // move event to the key's own event list  
         pEvents->move(pNoteOffEvent, pKey->pEvents);  
745      }      }
746    
747      /**      /**
748       *  Moves pitchbend event from the general (input) event list to the pitch       *  Moves pitchbend event from the general (input) event list to the pitch
749       *  event list.       *  event list.
750       *       *
751       *  @param pPitchbendEvent - absolute pitch value and time stamp of the event       *  @param itPitchbendEvent - absolute pitch value and time stamp of the event
752       */       */
753      void Engine::ProcessPitchbend(Event* pPitchbendEvent) {      void Engine::ProcessPitchbend(Pool<Event>::Iterator& itPitchbendEvent) {
754          this->Pitch = pPitchbendEvent->Pitch; // store current pitch value          this->Pitch = itPitchbendEvent->Param.Pitch.Pitch; // store current pitch value
755          pEvents->move(pPitchbendEvent, pSynthesisEvents[Event::destination_vco]);          itPitchbendEvent.moveToEndOf(pSynthesisEvents[Event::destination_vco]);
756      }      }
757    
758      /**      /**
# Line 595  namespace LinuxSampler { namespace gig { Line 760  namespace LinuxSampler { namespace gig {
760       *  called by the ProcessNoteOn() method and by the voices itself       *  called by the ProcessNoteOn() method and by the voices itself
761       *  (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).
762       *       *
763       *  @param pNoteOnEvent        - key, velocity and time stamp of the event       *  @param itNoteOnEvent       - key, velocity and time stamp of the event
764       *  @param iLayer              - layer index for the new voice (optional - only       *  @param iLayer              - layer index for the new voice (optional - only
765       *                               in case of layered sounds of course)       *                               in case of layered sounds of course)
766       *  @param ReleaseTriggerVoice - if new voice is a release triggered voice       *  @param ReleaseTriggerVoice - if new voice is a release triggered voice
767       *                               (optional, default = false)       *                               (optional, default = false)
768         *  @param VoiceStealing       - if voice stealing should be performed
769         *                               when there is no free voice
770         *                               (optional, default = true)
771         *  @returns pointer to new voice or NULL if there was no free voice or
772         *           if the voice wasn't triggered (for example when no region is
773         *           defined for the given key).
774       */       */
775      void Engine::LaunchVoice(Event* pNoteOnEvent, int iLayer, bool ReleaseTriggerVoice) {      Pool<Voice>::Iterator Engine::LaunchVoice(Pool<Event>::Iterator& itNoteOnEvent, int iLayer, bool ReleaseTriggerVoice, bool VoiceStealing) {
776          midi_key_info_t* pKey = &pMIDIKeyInfo[pNoteOnEvent->Key];          midi_key_info_t* pKey = &pMIDIKeyInfo[itNoteOnEvent->Param.Note.Key];
777    
778          // allocate a new voice for the key          // allocate a new voice for the key
779          Voice* pNewVoice = pKey->pActiveVoices->alloc();          Pool<Voice>::Iterator itNewVoice = pKey->pActiveVoices->allocAppend();
780          if (pNewVoice) {          if (itNewVoice) {
781              // launch the new voice              // launch the new voice
782              if (pNewVoice->Trigger(pNoteOnEvent, this->Pitch, this->pInstrument, iLayer, ReleaseTriggerVoice) < 0) {              if (itNewVoice->Trigger(itNoteOnEvent, this->Pitch, this->pInstrument, iLayer, ReleaseTriggerVoice, VoiceStealing) < 0) {
783                  dmsg(1,("Triggering new voice failed!\n"));                  dmsg(4,("Voice not triggered\n"));
784                  pKey->pActiveVoices->free(pNewVoice);                  pKey->pActiveVoices->free(itNewVoice);
785              }              }
786              else { // on success              else { // on success
787                  uint** ppKeyGroup = NULL;                  uint** ppKeyGroup = NULL;
788                  if (pNewVoice->KeyGroup) { // if this voice / key belongs to a key group                  if (itNewVoice->KeyGroup) { // if this voice / key belongs to a key group
789                      ppKeyGroup = &ActiveKeyGroups[pNewVoice->KeyGroup];                      ppKeyGroup = &ActiveKeyGroups[itNewVoice->KeyGroup];
790                      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
791                          midi_key_info_t* pOtherKey = &pMIDIKeyInfo[**ppKeyGroup];                          midi_key_info_t* pOtherKey = &pMIDIKeyInfo[**ppKeyGroup];
792                          // kill all voices on the (other) key                          // kill all voices on the (other) key
793                          Voice* pVoiceToBeKilled = pOtherKey->pActiveVoices->first();                          RTList<Voice>::Iterator itVoiceToBeKilled = pOtherKey->pActiveVoices->first();
794                          while (pVoiceToBeKilled) {                          RTList<Voice>::Iterator end               = pOtherKey->pActiveVoices->end();
795                              Voice* pVoiceToBeKilledNext = pOtherKey->pActiveVoices->next();                          for (; itVoiceToBeKilled != end; ++itVoiceToBeKilled) {
796                              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;  
797                          }                          }
798                      }                      }
799                  }                  }
800                  if (!pKey->Active) { // mark as active key                  if (!pKey->Active) { // mark as active key
801                      pKey->Active = true;                      pKey->Active = true;
802                      pKey->pSelf  = pActiveKeys->alloc();                      pKey->itSelf = pActiveKeys->allocAppend();
803                      *pKey->pSelf = pNoteOnEvent->Key;                      *pKey->itSelf = itNoteOnEvent->Param.Note.Key;
804                  }                  }
805                  if (pNewVoice->KeyGroup) {                  if (itNewVoice->KeyGroup) {
806                      *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
807                  }                  }
808                  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)
809                    return itNewVoice; // success
810                }
811            }
812            else if (VoiceStealing) {
813                // first, get total amount of required voices (dependant on amount of layers)
814                ::gig::Region* pRegion = pInstrument->GetRegion(itNoteOnEvent->Param.Note.Key);
815                if (!pRegion) return Pool<Voice>::Iterator(); // nothing defined for this MIDI key, so no voice needed
816                int voicesRequired = pRegion->Layers;
817    
818                // now steal the (remaining) amount of voices
819                for (int i = iLayer; i < voicesRequired; i++)
820                    StealVoice(itNoteOnEvent);
821    
822                // put note-on event into voice-stealing queue, so it will be reprocessed after killed voice died
823                RTList<Event>::Iterator itStealEvent = pVoiceStealingQueue->allocAppend();
824                if (itStealEvent) {
825                    *itStealEvent = *itNoteOnEvent; // copy event
826                    itStealEvent->Param.Note.Layer = iLayer;
827                    itStealEvent->Param.Note.ReleaseTrigger = ReleaseTriggerVoice;
828              }              }
829                else dmsg(1,("Voice stealing queue full!\n"));
830          }          }
831          else std::cerr << "No free voice!" << std::endl << std::flush;  
832            return Pool<Voice>::Iterator(); // no free voice or error
833      }      }
834    
835      /**      /**
836       *  Immediately kills the voice given with pVoice (no matter if sustain is       *  Will be called by LaunchVoice() method in case there are no free
837       *  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
838       *  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
839         *  voice actually died.
840       *       *
841       *  @param pVoice - points to the voice to be killed       *  @param itNoteOnEvent - key, velocity and time stamp of the event
842       */       */
843      void Engine::KillVoiceImmediately(Voice* pVoice) {      void Engine::StealVoice(Pool<Event>::Iterator& itNoteOnEvent) {
844          if (pVoice) {          if (!pEventPool->poolIsEmpty()) {
845              if (pVoice->IsActive()) pVoice->KillImmediately();  
846                RTList<uint>::Iterator  iuiOldestKey;
847                RTList<Voice>::Iterator itOldestVoice;
848    
849              midi_key_info_t* pKey = &pMIDIKeyInfo[pVoice->MIDIKey];              // Select one voice for voice stealing
850                switch (VOICE_STEAL_ALGORITHM) {
851    
852                    // try to pick the oldest voice on the key where the new
853                    // voice should be spawned, if there is no voice on that
854                    // key, or no voice left to kill there, then procceed with
855                    // 'oldestkey' algorithm
856                    case voice_steal_algo_keymask: {
857                        midi_key_info_t* pOldestKey = &pMIDIKeyInfo[itNoteOnEvent->Param.Note.Key];
858                        if (itLastStolenVoice) {
859                            itOldestVoice = itLastStolenVoice;
860                            ++itOldestVoice;
861                        }
862                        else { // no voice stolen in this audio fragment cycle yet
863                            itOldestVoice = pOldestKey->pActiveVoices->first();
864                        }
865                        if (itOldestVoice) {
866                            iuiOldestKey = pOldestKey->itSelf;
867                            break; // selection succeeded
868                        }
869                    } // no break - intentional !
870    
871                    // try to pick the oldest voice on the oldest active key
872                    // (caution: must stay after 'keymask' algorithm !)
873                    case voice_steal_algo_oldestkey: {
874                        if (itLastStolenVoice) {
875                            midi_key_info_t* pOldestKey = &pMIDIKeyInfo[*iuiLastStolenKey];
876                            itOldestVoice = itLastStolenVoice;
877                            ++itOldestVoice;
878                            if (!itOldestVoice) {
879                                iuiOldestKey = iuiLastStolenKey;
880                                ++iuiOldestKey;
881                                if (iuiOldestKey) {
882                                    midi_key_info_t* pOldestKey = &pMIDIKeyInfo[*iuiOldestKey];
883                                    itOldestVoice = pOldestKey->pActiveVoices->first();
884                                }
885                                else {
886                                    dmsg(1,("gig::Engine: Warning, too less voices, even for voice stealing! - Better recompile with higher MAX_AUDIO_VOICES.\n"));
887                                    return;
888                                }
889                            }
890                            else iuiOldestKey = iuiLastStolenKey;
891                        }
892                        else { // no voice stolen in this audio fragment cycle yet
893                            iuiOldestKey = pActiveKeys->first();
894                            midi_key_info_t* pOldestKey = &pMIDIKeyInfo[*iuiOldestKey];
895                            itOldestVoice = pOldestKey->pActiveVoices->first();
896                        }
897                        break;
898                    }
899    
900                    // don't steal anything
901                    case voice_steal_algo_none:
902                    default: {
903                        dmsg(1,("No free voice (voice stealing disabled)!\n"));
904                        return;
905                    }
906                }
907    
908                //FIXME: can be removed, just a sanity check for debugging
909                if (!itOldestVoice->IsActive()) dmsg(1,("gig::Engine: ERROR, tried to steal a voice which was not active !!!\n"));
910    
911                // now kill the selected voice
912                itOldestVoice->Kill(itNoteOnEvent);
913                // remember which voice on which key we stole, so we can simply proceed for the next voice stealing
914                this->itLastStolenVoice = itOldestVoice;
915                this->iuiLastStolenKey = iuiOldestKey;
916            }
917            else dmsg(1,("Event pool emtpy!\n"));
918        }
919    
920        /**
921         *  Removes the given voice from the MIDI key's list of active voices.
922         *  This method will be called when a voice went inactive, e.g. because
923         *  it finished to playback its sample, finished its release stage or
924         *  just was killed.
925         *
926         *  @param itVoice - points to the voice to be freed
927         */
928        void Engine::FreeVoice(Pool<Voice>::Iterator& itVoice) {
929            if (itVoice) {
930                midi_key_info_t* pKey = &pMIDIKeyInfo[itVoice->MIDIKey];
931    
932                uint keygroup = itVoice->KeyGroup;
933    
934              // free the voice object              // free the voice object
935              pVoicePool->free(pVoice);              pVoicePool->free(itVoice);
936    
937              // 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
938              if (pKey->pActiveVoices->is_empty()) {              if (pKey->pActiveVoices->isEmpty() && keygroup) {
939                  if (pVoice->KeyGroup) { // if voice / key belongs to a key group                  uint** ppKeyGroup = &ActiveKeyGroups[keygroup];
940                      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"));  
941              }              }
942          }          }
943          else std::cerr << "Couldn't release voice! (pVoice == NULL)\n" << std::flush;          else std::cerr << "Couldn't release voice! (!itVoice)\n" << std::flush;
944        }
945    
946        /**
947         *  Called when there's no more voice left on a key, this call will
948         *  update the key info respectively.
949         *
950         *  @param pKey - key which is now inactive
951         */
952        void Engine::FreeKey(midi_key_info_t* pKey) {
953            if (pKey->pActiveVoices->isEmpty()) {
954                pKey->Active = false;
955                pActiveKeys->free(pKey->itSelf); // remove key from list of active keys
956                pKey->itSelf = RTList<uint>::Iterator();
957                pKey->ReleaseTrigger = false;
958                pKey->pEvents->clear();
959                dmsg(3,("Key has no more voices now\n"));
960            }
961            else dmsg(1,("gig::Engine: Oops, tried to free a key which contains voices.\n"));
962      }      }
963    
964      /**      /**
965       *  Reacts on supported control change commands (e.g. pitch bend wheel,       *  Reacts on supported control change commands (e.g. pitch bend wheel,
966       *  modulation wheel, aftertouch).       *  modulation wheel, aftertouch).
967       *       *
968       *  @param pControlChangeEvent - controller, value and time stamp of the event       *  @param itControlChangeEvent - controller, value and time stamp of the event
969       */       */
970      void Engine::ProcessControlChange(Event* pControlChangeEvent) {      void Engine::ProcessControlChange(Pool<Event>::Iterator& itControlChangeEvent) {
971          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));
972    
973          switch (pControlChangeEvent->Controller) {          switch (itControlChangeEvent->Param.CC.Controller) {
974              case 64: {              case 64: {
975                  if (pControlChangeEvent->Value >= 64 && !SustainPedal) {                  if (itControlChangeEvent->Param.CC.Value >= 64 && !SustainPedal) {
976                      dmsg(4,("PEDAL DOWN\n"));                      dmsg(4,("PEDAL DOWN\n"));
977                      SustainPedal = true;                      SustainPedal = true;
978    
979                      // cancel release process of voices if necessary                      // cancel release process of voices if necessary
980                      uint* piKey = pActiveKeys->first();                      RTList<uint>::Iterator iuiKey = pActiveKeys->first();
981                      if (piKey) {                      if (iuiKey) {
982                          pControlChangeEvent->Type = Event::type_cancel_release; // transform event type                          itControlChangeEvent->Type = Event::type_cancel_release; // transform event type
983                          while (piKey) {                          while (iuiKey) {
984                              midi_key_info_t* pKey = &pMIDIKeyInfo[*piKey];                              midi_key_info_t* pKey = &pMIDIKeyInfo[*iuiKey];
985                              pActiveKeys->set_current(piKey);                              ++iuiKey;
                             piKey = pActiveKeys->next();  
986                              if (!pKey->KeyPressed) {                              if (!pKey->KeyPressed) {
987                                  Event* pNewEvent = pKey->pEvents->alloc();                                  RTList<Event>::Iterator itNewEvent = pKey->pEvents->allocAppend();
988                                  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
989                                  else dmsg(1,("Event pool emtpy!\n"));                                  else dmsg(1,("Event pool emtpy!\n"));
990                              }                              }
991                          }                          }
992                      }                      }
993                  }                  }
994                  if (pControlChangeEvent->Value < 64 && SustainPedal) {                  if (itControlChangeEvent->Param.CC.Value < 64 && SustainPedal) {
995                      dmsg(4,("PEDAL UP\n"));                      dmsg(4,("PEDAL UP\n"));
996                      SustainPedal = false;                      SustainPedal = false;
997    
998                      // release voices if their respective key is not pressed                      // release voices if their respective key is not pressed
999                      uint* piKey = pActiveKeys->first();                      RTList<uint>::Iterator iuiKey = pActiveKeys->first();
1000                      if (piKey) {                      if (iuiKey) {
1001                          pControlChangeEvent->Type = Event::type_release; // transform event type                          itControlChangeEvent->Type = Event::type_release; // transform event type
1002                          while (piKey) {                          while (iuiKey) {
1003                              midi_key_info_t* pKey = &pMIDIKeyInfo[*piKey];                              midi_key_info_t* pKey = &pMIDIKeyInfo[*iuiKey];
1004                              pActiveKeys->set_current(piKey);                              ++iuiKey;
                             piKey = pActiveKeys->next();  
1005                              if (!pKey->KeyPressed) {                              if (!pKey->KeyPressed) {
1006                                  Event* pNewEvent = pKey->pEvents->alloc();                                  RTList<Event>::Iterator itNewEvent = pKey->pEvents->allocAppend();
1007                                  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
1008                                  else dmsg(1,("Event pool emtpy!\n"));                                  else dmsg(1,("Event pool emtpy!\n"));
1009                              }                              }
1010                          }                          }
# Line 730  namespace LinuxSampler { namespace gig { Line 1015  namespace LinuxSampler { namespace gig {
1015          }          }
1016    
1017          // update controller value in the engine's controller table          // update controller value in the engine's controller table
1018          ControllerTable[pControlChangeEvent->Controller] = pControlChangeEvent->Value;          ControllerTable[itControlChangeEvent->Param.CC.Controller] = itControlChangeEvent->Param.CC.Value;
1019    
1020          // 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
1021          pEvents->move(pControlChangeEvent, pCCEvents);          itControlChangeEvent.moveToEndOf(pCCEvents);
1022        }
1023    
1024        /**
1025         *  Reacts on MIDI system exclusive messages.
1026         *
1027         *  @param itSysexEvent - sysex data size and time stamp of the sysex event
1028         */
1029        void Engine::ProcessSysex(Pool<Event>::Iterator& itSysexEvent) {
1030            RingBuffer<uint8_t>::NonVolatileReader reader = pSysexBuffer->get_non_volatile_reader();
1031    
1032            uint8_t exclusive_status, id;
1033            if (!reader.pop(&exclusive_status)) goto free_sysex_data;
1034            if (!reader.pop(&id))               goto free_sysex_data;
1035            if (exclusive_status != 0xF0)       goto free_sysex_data;
1036    
1037            switch (id) {
1038                case 0x41: { // Roland
1039                    uint8_t device_id, model_id, cmd_id;
1040                    if (!reader.pop(&device_id)) goto free_sysex_data;
1041                    if (!reader.pop(&model_id))  goto free_sysex_data;
1042                    if (!reader.pop(&cmd_id))    goto free_sysex_data;
1043                    if (model_id != 0x42 /*GS*/) goto free_sysex_data;
1044                    if (cmd_id != 0x12 /*DT1*/)  goto free_sysex_data;
1045    
1046                    // command address
1047                    uint8_t addr[3]; // 2 byte addr MSB, followed by 1 byte addr LSB)
1048                    const RingBuffer<uint8_t>::NonVolatileReader checksum_reader = reader; // so we can calculate the check sum later
1049                    if (reader.read(&addr[0], 3) != 3) goto free_sysex_data;
1050                    if (addr[0] == 0x40 && addr[1] == 0x00) { // System Parameters
1051                    }
1052                    else if (addr[0] == 0x40 && addr[1] == 0x01) { // Common Parameters
1053                    }
1054                    else if (addr[0] == 0x40 && (addr[1] & 0xf0) == 0x10) { // Part Parameters (1)
1055                        switch (addr[3]) {
1056                            case 0x40: { // scale tuning
1057                                uint8_t scale_tunes[12]; // detuning of all 12 semitones of an octave
1058                                if (reader.read(&scale_tunes[0], 12) != 12) goto free_sysex_data;
1059                                uint8_t checksum;
1060                                if (!reader.pop(&checksum))                      goto free_sysex_data;
1061                                if (GSCheckSum(checksum_reader, 12) != checksum) goto free_sysex_data;
1062                                for (int i = 0; i < 12; i++) scale_tunes[i] -= 64;
1063                                AdjustScale((int8_t*) scale_tunes);
1064                                break;
1065                            }
1066                        }
1067                    }
1068                    else if (addr[0] == 0x40 && (addr[1] & 0xf0) == 0x20) { // Part Parameters (2)
1069                    }
1070                    else if (addr[0] == 0x41) { // Drum Setup Parameters
1071                    }
1072                    break;
1073                }
1074            }
1075    
1076            free_sysex_data: // finally free sysex data
1077            pSysexBuffer->increment_read_ptr(itSysexEvent->Param.Sysex.Size);
1078        }
1079    
1080        /**
1081         * Calculates the Roland GS sysex check sum.
1082         *
1083         * @param AddrReader - reader which currently points to the first GS
1084         *                     command address byte of the GS sysex message in
1085         *                     question
1086         * @param DataSize   - size of the GS message data (in bytes)
1087         */
1088        uint8_t Engine::GSCheckSum(const RingBuffer<uint8_t>::NonVolatileReader AddrReader, uint DataSize) {
1089            RingBuffer<uint8_t>::NonVolatileReader reader = AddrReader;
1090            uint bytes = 3 /*addr*/ + DataSize;
1091            uint8_t addr_and_data[bytes];
1092            reader.read(&addr_and_data[0], bytes);
1093            uint8_t sum = 0;
1094            for (uint i = 0; i < bytes; i++) sum += addr_and_data[i];
1095            return 128 - sum % 128;
1096        }
1097    
1098        /**
1099         * Allows to tune each of the twelve semitones of an octave.
1100         *
1101         * @param ScaleTunes - detuning of all twelve semitones (in cents)
1102         */
1103        void Engine::AdjustScale(int8_t ScaleTunes[12]) {
1104            memcpy(&this->ScaleTuning[0], &ScaleTunes[0], 12); //TODO: currently not sample accurate
1105      }      }
1106    
1107      /**      /**
# Line 827  namespace LinuxSampler { namespace gig { Line 1195  namespace LinuxSampler { namespace gig {
1195          return InstrumentFile;          return InstrumentFile;
1196      }      }
1197    
1198        String Engine::InstrumentName() {
1199            return InstrumentIdxName;
1200        }
1201    
1202      int Engine::InstrumentIndex() {      int Engine::InstrumentIndex() {
1203          return InstrumentIdx;          return InstrumentIdx;
1204      }      }
# Line 840  namespace LinuxSampler { namespace gig { Line 1212  namespace LinuxSampler { namespace gig {
1212      }      }
1213    
1214      String Engine::Version() {      String Engine::Version() {
1215          String s = "$Revision: 1.11 $";          String s = "$Revision: 1.25 $";
1216          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
1217      }      }
1218    
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