37 |
pAudioOutputDevice = NULL; |
pAudioOutputDevice = NULL; |
38 |
pDiskThread = NULL; |
pDiskThread = NULL; |
39 |
pEventGenerator = NULL; |
pEventGenerator = NULL; |
40 |
pEventQueue = new RingBuffer<Event>(MAX_EVENTS_PER_FRAGMENT); |
pSysexBuffer = new RingBuffer<uint8_t>(SYSEX_BUFFER_SIZE, 0); |
41 |
|
pEventQueue = new RingBuffer<Event>(MAX_EVENTS_PER_FRAGMENT, 0); |
42 |
pEventPool = new RTELMemoryPool<Event>(MAX_EVENTS_PER_FRAGMENT); |
pEventPool = new RTELMemoryPool<Event>(MAX_EVENTS_PER_FRAGMENT); |
43 |
pVoicePool = new RTELMemoryPool<Voice>(MAX_AUDIO_VOICES); |
pVoicePool = new RTELMemoryPool<Voice>(MAX_AUDIO_VOICES); |
44 |
pActiveKeys = new RTELMemoryPool<uint>(128); |
pActiveKeys = new RTELMemoryPool<uint>(128); |
45 |
|
pVoiceStealingQueue = new RTEList<Event>(pEventPool); |
46 |
pEvents = new RTEList<Event>(pEventPool); |
pEvents = new RTEList<Event>(pEventPool); |
47 |
pCCEvents = new RTEList<Event>(pEventPool); |
pCCEvents = new RTEList<Event>(pEventPool); |
48 |
for (uint i = 0; i < Event::destination_count; i++) { |
for (uint i = 0; i < Event::destination_count; i++) { |
49 |
pSynthesisEvents[i] = new RTEList<Event>(pEventPool); |
pSynthesisEvents[i] = new RTEList<Event>(pEventPool); |
50 |
} |
} |
51 |
for (uint i = 0; i < 128; i++) { |
for (uint i = 0; i < 128; i++) { |
52 |
pMIDIKeyInfo[i].pActiveVoices = new RTEList<Voice>(pVoicePool); |
pMIDIKeyInfo[i].pActiveVoices = new RTEList<Voice>(pVoicePool); |
53 |
pMIDIKeyInfo[i].KeyPressed = false; |
pMIDIKeyInfo[i].KeyPressed = false; |
54 |
pMIDIKeyInfo[i].Active = false; |
pMIDIKeyInfo[i].Active = false; |
55 |
pMIDIKeyInfo[i].pSelf = NULL; |
pMIDIKeyInfo[i].ReleaseTrigger = false; |
56 |
pMIDIKeyInfo[i].pEvents = new RTEList<Event>(pEventPool); |
pMIDIKeyInfo[i].pSelf = NULL; |
57 |
|
pMIDIKeyInfo[i].pEvents = new RTEList<Event>(pEventPool); |
58 |
} |
} |
59 |
for (Voice* pVoice = pVoicePool->alloc(); pVoice; pVoice = pVoicePool->alloc()) { |
for (Voice* pVoice = pVoicePool->alloc(); pVoice; pVoice = pVoicePool->alloc()) { |
60 |
pVoice->SetEngine(this); |
pVoice->SetEngine(this); |
68 |
InstrumentIdx = -1; |
InstrumentIdx = -1; |
69 |
InstrumentStat = -1; |
InstrumentStat = -1; |
70 |
|
|
71 |
|
AudioDeviceChannelLeft = -1; |
72 |
|
AudioDeviceChannelRight = -1; |
73 |
|
|
74 |
ResetInternal(); |
ResetInternal(); |
75 |
} |
} |
76 |
|
|
95 |
if (pEventPool) delete pEventPool; |
if (pEventPool) delete pEventPool; |
96 |
if (pVoicePool) delete pVoicePool; |
if (pVoicePool) delete pVoicePool; |
97 |
if (pActiveKeys) delete pActiveKeys; |
if (pActiveKeys) delete pActiveKeys; |
98 |
|
if (pSysexBuffer) delete pSysexBuffer; |
99 |
if (pEventGenerator) delete pEventGenerator; |
if (pEventGenerator) delete pEventGenerator; |
100 |
if (pMainFilterParameters) delete[] pMainFilterParameters; |
if (pMainFilterParameters) delete[] pMainFilterParameters; |
101 |
if (pBasicFilterParameters) delete[] pBasicFilterParameters; |
if (pBasicFilterParameters) delete[] pBasicFilterParameters; |
102 |
if (pSynthesisParameters[0]) delete[] pSynthesisParameters[0]; |
if (pSynthesisParameters[0]) delete[] pSynthesisParameters[0]; |
103 |
|
if (pVoiceStealingQueue) delete pVoiceStealingQueue; |
104 |
} |
} |
105 |
|
|
106 |
void Engine::Enable() { |
void Engine::Enable() { |
157 |
SustainPedal = false; |
SustainPedal = false; |
158 |
ActiveVoiceCount = 0; |
ActiveVoiceCount = 0; |
159 |
ActiveVoiceCountMax = 0; |
ActiveVoiceCountMax = 0; |
160 |
|
GlobalVolume = 1.0; |
161 |
|
|
162 |
|
// reset voice stealing parameters |
163 |
|
pLastStolenVoice = NULL; |
164 |
|
puiLastStolenKey = NULL; |
165 |
|
pVoiceStealingQueue->clear(); |
166 |
|
|
167 |
|
// reset to normal chromatic scale (means equal temper) |
168 |
|
memset(&ScaleTuning[0], 0x00, 12); |
169 |
|
|
170 |
// set all MIDI controller values to zero |
// set all MIDI controller values to zero |
171 |
memset(ControllerTable, 0x00, 128); |
memset(ControllerTable, 0x00, 128); |
174 |
for (uint i = 0; i < 128; i++) { |
for (uint i = 0; i < 128; i++) { |
175 |
pMIDIKeyInfo[i].pActiveVoices->clear(); |
pMIDIKeyInfo[i].pActiveVoices->clear(); |
176 |
pMIDIKeyInfo[i].pEvents->clear(); |
pMIDIKeyInfo[i].pEvents->clear(); |
177 |
pMIDIKeyInfo[i].KeyPressed = false; |
pMIDIKeyInfo[i].KeyPressed = false; |
178 |
pMIDIKeyInfo[i].Active = false; |
pMIDIKeyInfo[i].Active = false; |
179 |
pMIDIKeyInfo[i].pSelf = NULL; |
pMIDIKeyInfo[i].ReleaseTrigger = false; |
180 |
|
pMIDIKeyInfo[i].pSelf = NULL; |
181 |
} |
} |
182 |
|
|
183 |
|
// reset all key groups |
184 |
|
map<uint,uint*>::iterator iter = ActiveKeyGroups.begin(); |
185 |
|
for (; iter != ActiveKeyGroups.end(); iter++) iter->second = NULL; |
186 |
|
|
187 |
// reset all voices |
// reset all voices |
188 |
for (Voice* pVoice = pVoicePool->alloc(); pVoice; pVoice = pVoicePool->alloc()) { |
for (Voice* pVoice = pVoicePool->alloc(); pVoice; pVoice = pVoicePool->alloc()) { |
189 |
pVoice->Reset(); |
pVoice->Reset(); |
224 |
InstrumentIdx = Instrument; |
InstrumentIdx = Instrument; |
225 |
InstrumentStat = 0; |
InstrumentStat = 0; |
226 |
|
|
227 |
|
// delete all key groups |
228 |
|
ActiveKeyGroups.clear(); |
229 |
|
|
230 |
// request gig instrument from instrument manager |
// request gig instrument from instrument manager |
231 |
try { |
try { |
232 |
instrument_id_t instrid; |
instrument_id_t instrid; |
254 |
throw LinuxSamplerException("gig::Engine error: Failed to load instrument, cause: Unknown exception while trying to parse gig file."); |
throw LinuxSamplerException("gig::Engine error: Failed to load instrument, cause: Unknown exception while trying to parse gig file."); |
255 |
} |
} |
256 |
|
|
257 |
|
// rebuild ActiveKeyGroups map with key groups of current instrument |
258 |
|
for (::gig::Region* pRegion = pInstrument->GetFirstRegion(); pRegion; pRegion = pInstrument->GetNextRegion()) |
259 |
|
if (pRegion->KeyGroup) ActiveKeyGroups[pRegion->KeyGroup] = NULL; |
260 |
|
|
261 |
InstrumentStat = 100; |
InstrumentStat = 100; |
262 |
|
|
263 |
// inform audio driver for the need of two channels |
// inform audio driver for the need of two channels |
289 |
* update process was completed, so we can continue with playback. |
* update process was completed, so we can continue with playback. |
290 |
*/ |
*/ |
291 |
void Engine::ResourceUpdated(::gig::Instrument* pOldResource, ::gig::Instrument* pNewResource, void* pUpdateArg) { |
void Engine::ResourceUpdated(::gig::Instrument* pOldResource, ::gig::Instrument* pNewResource, void* pUpdateArg) { |
292 |
this->pInstrument = pNewResource; |
this->pInstrument = pNewResource; //TODO: there are couple of engine parameters we should update here as well if the instrument was updated (see LoadInstrument()) |
293 |
Enable(); |
Enable(); |
294 |
} |
} |
295 |
|
|
307 |
throw LinuxSamplerException(msg); |
throw LinuxSamplerException(msg); |
308 |
} |
} |
309 |
|
|
310 |
|
this->AudioDeviceChannelLeft = 0; |
311 |
|
this->AudioDeviceChannelRight = 1; |
312 |
|
this->pOutputLeft = pAudioOutputDevice->Channel(0)->Buffer(); |
313 |
|
this->pOutputRight = pAudioOutputDevice->Channel(1)->Buffer(); |
314 |
|
this->MaxSamplesPerCycle = pAudioOutputDevice->MaxSamplesPerCycle(); |
315 |
|
this->SampleRate = pAudioOutputDevice->SampleRate(); |
316 |
|
|
317 |
// (re)create disk thread |
// (re)create disk thread |
318 |
if (this->pDiskThread) { |
if (this->pDiskThread) { |
319 |
this->pDiskThread->StopThread(); |
this->pDiskThread->StopThread(); |
327 |
|
|
328 |
for (Voice* pVoice = pVoicePool->alloc(); pVoice; pVoice = pVoicePool->alloc()) { |
for (Voice* pVoice = pVoicePool->alloc(); pVoice; pVoice = pVoicePool->alloc()) { |
329 |
pVoice->pDiskThread = this->pDiskThread; |
pVoice->pDiskThread = this->pDiskThread; |
|
pVoice->SetOutput(pAudioOut); |
|
330 |
dmsg(3,("d")); |
dmsg(3,("d")); |
331 |
} |
} |
332 |
pVoicePool->clear(); |
pVoicePool->clear(); |
364 |
AudioOutputDevice* olddevice = pAudioOutputDevice; |
AudioOutputDevice* olddevice = pAudioOutputDevice; |
365 |
pAudioOutputDevice = NULL; |
pAudioOutputDevice = NULL; |
366 |
olddevice->Disconnect(this); |
olddevice->Disconnect(this); |
367 |
|
AudioDeviceChannelLeft = -1; |
368 |
|
AudioDeviceChannelRight = -1; |
369 |
} |
} |
370 |
} |
} |
371 |
|
|
399 |
for (uint i = 0; i < Event::destination_count; i++) { |
for (uint i = 0; i < Event::destination_count; i++) { |
400 |
pSynthesisEvents[i]->clear(); |
pSynthesisEvents[i]->clear(); |
401 |
} |
} |
402 |
|
for (uint* puiKey = pActiveKeys->first(); puiKey; puiKey = pActiveKeys->next()) { |
403 |
|
midi_key_info_t* pKey = &pMIDIKeyInfo[*puiKey]; |
404 |
|
pKey->pEvents->clear(); // free all events on the key |
405 |
|
} |
406 |
|
|
407 |
// read and copy events from input queue |
// read and copy events from input queue |
408 |
Event event = pEventGenerator->CreateEvent(); |
Event event = pEventGenerator->CreateEvent(); |
424 |
pNextEvent = pEvents->next(); |
pNextEvent = pEvents->next(); |
425 |
switch (pEvent->Type) { |
switch (pEvent->Type) { |
426 |
case Event::type_note_on: |
case Event::type_note_on: |
427 |
dmsg(5,("Audio Thread: Note on received\n")); |
dmsg(5,("Engine: Note on received\n")); |
428 |
ProcessNoteOn(pEvent); |
ProcessNoteOn(pEvent); |
429 |
break; |
break; |
430 |
case Event::type_note_off: |
case Event::type_note_off: |
431 |
dmsg(5,("Audio Thread: Note off received\n")); |
dmsg(5,("Engine: Note off received\n")); |
432 |
ProcessNoteOff(pEvent); |
ProcessNoteOff(pEvent); |
433 |
break; |
break; |
434 |
case Event::type_control_change: |
case Event::type_control_change: |
435 |
dmsg(5,("Audio Thread: MIDI CC received\n")); |
dmsg(5,("Engine: MIDI CC received\n")); |
436 |
ProcessControlChange(pEvent); |
ProcessControlChange(pEvent); |
437 |
break; |
break; |
438 |
case Event::type_pitchbend: |
case Event::type_pitchbend: |
439 |
dmsg(5,("Audio Thread: Pitchbend received\n")); |
dmsg(5,("Engine: Pitchbend received\n")); |
440 |
ProcessPitchbend(pEvent); |
ProcessPitchbend(pEvent); |
441 |
break; |
break; |
442 |
|
case Event::type_sysex: |
443 |
|
dmsg(5,("Engine: Sysex received\n")); |
444 |
|
ProcessSysex(pEvent); |
445 |
|
break; |
446 |
} |
} |
447 |
} |
} |
448 |
|
|
466 |
pVoice->Render(Samples); |
pVoice->Render(Samples); |
467 |
if (pVoice->IsActive()) active_voices++; // still active |
if (pVoice->IsActive()) active_voices++; // still active |
468 |
else { // voice reached end, is now inactive |
else { // voice reached end, is now inactive |
469 |
KillVoice(pVoice); // remove voice from the list of active voices |
KillVoiceImmediately(pVoice); // remove voice from the list of active voices |
470 |
} |
} |
471 |
} |
} |
|
pKey->pEvents->clear(); // free all events on the key |
|
472 |
} |
} |
473 |
|
|
474 |
|
|
475 |
|
// now render all postponed voices from voice stealing |
476 |
|
Event* pVoiceStealEvent = pVoiceStealingQueue->first(); |
477 |
|
while (pVoiceStealEvent) { |
478 |
|
Voice* pNewVoice = LaunchVoice(pVoiceStealEvent, pVoiceStealEvent->Param.Note.Layer, pVoiceStealEvent->Param.Note.ReleaseTrigger, false); |
479 |
|
if (pNewVoice) { |
480 |
|
pNewVoice->Render(Samples); |
481 |
|
if (pNewVoice->IsActive()) active_voices++; // still active |
482 |
|
else { // voice reached end, is now inactive |
483 |
|
KillVoiceImmediately(pNewVoice); // remove voice from the list of active voices |
484 |
|
} |
485 |
|
} |
486 |
|
else dmsg(1,("Ouch, voice stealing didn't work out!\n")); |
487 |
|
pVoiceStealEvent = pVoiceStealingQueue->next(); |
488 |
|
} |
489 |
|
// reset voice stealing for the new fragment |
490 |
|
pVoiceStealingQueue->clear(); |
491 |
|
pLastStolenVoice = NULL; |
492 |
|
puiLastStolenKey = NULL; |
493 |
|
|
494 |
|
|
495 |
// write that to the disk thread class so that it can print it |
// write that to the disk thread class so that it can print it |
496 |
// on the console for debugging purposes |
// on the console for debugging purposes |
497 |
ActiveVoiceCount = active_voices; |
ActiveVoiceCount = active_voices; |
509 |
* @param Velocity - MIDI velocity value of the triggered key |
* @param Velocity - MIDI velocity value of the triggered key |
510 |
*/ |
*/ |
511 |
void Engine::SendNoteOn(uint8_t Key, uint8_t Velocity) { |
void Engine::SendNoteOn(uint8_t Key, uint8_t Velocity) { |
512 |
Event event = pEventGenerator->CreateEvent(); |
Event event = pEventGenerator->CreateEvent(); |
513 |
event.Type = Event::type_note_on; |
event.Type = Event::type_note_on; |
514 |
event.Key = Key; |
event.Param.Note.Key = Key; |
515 |
event.Velocity = Velocity; |
event.Param.Note.Velocity = Velocity; |
516 |
if (this->pEventQueue->write_space() > 0) this->pEventQueue->push(&event); |
if (this->pEventQueue->write_space() > 0) this->pEventQueue->push(&event); |
517 |
else dmsg(1,("Engine: Input event queue full!")); |
else dmsg(1,("Engine: Input event queue full!")); |
518 |
} |
} |
525 |
* @param Velocity - MIDI release velocity value of the released key |
* @param Velocity - MIDI release velocity value of the released key |
526 |
*/ |
*/ |
527 |
void Engine::SendNoteOff(uint8_t Key, uint8_t Velocity) { |
void Engine::SendNoteOff(uint8_t Key, uint8_t Velocity) { |
528 |
Event event = pEventGenerator->CreateEvent(); |
Event event = pEventGenerator->CreateEvent(); |
529 |
event.Type = Event::type_note_off; |
event.Type = Event::type_note_off; |
530 |
event.Key = Key; |
event.Param.Note.Key = Key; |
531 |
event.Velocity = Velocity; |
event.Param.Note.Velocity = Velocity; |
532 |
if (this->pEventQueue->write_space() > 0) this->pEventQueue->push(&event); |
if (this->pEventQueue->write_space() > 0) this->pEventQueue->push(&event); |
533 |
else dmsg(1,("Engine: Input event queue full!")); |
else dmsg(1,("Engine: Input event queue full!")); |
534 |
} |
} |
540 |
* @param Pitch - MIDI pitch value (-8192 ... +8191) |
* @param Pitch - MIDI pitch value (-8192 ... +8191) |
541 |
*/ |
*/ |
542 |
void Engine::SendPitchbend(int Pitch) { |
void Engine::SendPitchbend(int Pitch) { |
543 |
Event event = pEventGenerator->CreateEvent(); |
Event event = pEventGenerator->CreateEvent(); |
544 |
event.Type = Event::type_pitchbend; |
event.Type = Event::type_pitchbend; |
545 |
event.Pitch = Pitch; |
event.Param.Pitch.Pitch = Pitch; |
546 |
if (this->pEventQueue->write_space() > 0) this->pEventQueue->push(&event); |
if (this->pEventQueue->write_space() > 0) this->pEventQueue->push(&event); |
547 |
else dmsg(1,("Engine: Input event queue full!")); |
else dmsg(1,("Engine: Input event queue full!")); |
548 |
} |
} |
555 |
* @param Value - value of the control change |
* @param Value - value of the control change |
556 |
*/ |
*/ |
557 |
void Engine::SendControlChange(uint8_t Controller, uint8_t Value) { |
void Engine::SendControlChange(uint8_t Controller, uint8_t Value) { |
558 |
Event event = pEventGenerator->CreateEvent(); |
Event event = pEventGenerator->CreateEvent(); |
559 |
event.Type = Event::type_control_change; |
event.Type = Event::type_control_change; |
560 |
event.Controller = Controller; |
event.Param.CC.Controller = Controller; |
561 |
event.Value = Value; |
event.Param.CC.Value = Value; |
562 |
if (this->pEventQueue->write_space() > 0) this->pEventQueue->push(&event); |
if (this->pEventQueue->write_space() > 0) this->pEventQueue->push(&event); |
563 |
else dmsg(1,("Engine: Input event queue full!")); |
else dmsg(1,("Engine: Input event queue full!")); |
564 |
} |
} |
565 |
|
|
566 |
/** |
/** |
567 |
|
* Will be called by the MIDI input device whenever a MIDI system |
568 |
|
* exclusive message has arrived. |
569 |
|
* |
570 |
|
* @param pData - pointer to sysex data |
571 |
|
* @param Size - lenght of sysex data (in bytes) |
572 |
|
*/ |
573 |
|
void Engine::SendSysex(void* pData, uint Size) { |
574 |
|
Event event = pEventGenerator->CreateEvent(); |
575 |
|
event.Type = Event::type_sysex; |
576 |
|
event.Param.Sysex.Size = Size; |
577 |
|
if (pEventQueue->write_space() > 0) { |
578 |
|
if (pSysexBuffer->write_space() >= Size) { |
579 |
|
// copy sysex data to input buffer |
580 |
|
uint toWrite = Size; |
581 |
|
uint8_t* pPos = (uint8_t*) pData; |
582 |
|
while (toWrite) { |
583 |
|
const uint writeNow = RTMath::Min(toWrite, pSysexBuffer->write_space_to_end()); |
584 |
|
pSysexBuffer->write(pPos, writeNow); |
585 |
|
toWrite -= writeNow; |
586 |
|
pPos += writeNow; |
587 |
|
|
588 |
|
} |
589 |
|
// finally place sysex event into input event queue |
590 |
|
pEventQueue->push(&event); |
591 |
|
} |
592 |
|
else dmsg(1,("Engine: Sysex message too large (%d byte) for input buffer (%d byte)!",Size,SYSEX_BUFFER_SIZE)); |
593 |
|
} |
594 |
|
else dmsg(1,("Engine: Input event queue full!")); |
595 |
|
} |
596 |
|
|
597 |
|
/** |
598 |
* Assigns and triggers a new voice for the respective MIDI key. |
* Assigns and triggers a new voice for the respective MIDI key. |
599 |
* |
* |
600 |
* @param pNoteOnEvent - key, velocity and time stamp of the event |
* @param pNoteOnEvent - key, velocity and time stamp of the event |
601 |
*/ |
*/ |
602 |
void Engine::ProcessNoteOn(Event* pNoteOnEvent) { |
void Engine::ProcessNoteOn(Event* pNoteOnEvent) { |
603 |
midi_key_info_t* pKey = &pMIDIKeyInfo[pNoteOnEvent->Key]; |
midi_key_info_t* pKey = &pMIDIKeyInfo[pNoteOnEvent->Param.Note.Key]; |
604 |
|
|
605 |
pKey->KeyPressed = true; // the MIDI key was now pressed down |
pKey->KeyPressed = true; // the MIDI key was now pressed down |
606 |
|
|
607 |
// cancel release process of voices on this key if needed |
// cancel release process of voices on this key if needed |
608 |
if (pKey->Active && !SustainPedal) { |
if (pKey->Active && !SustainPedal) { |
609 |
pNoteOnEvent->Type = Event::type_cancel_release; // transform event type |
Event* pCancelReleaseEvent = pKey->pEvents->alloc(); |
610 |
pEvents->move(pNoteOnEvent, pKey->pEvents); // move event to the key's own event list |
if (pCancelReleaseEvent) { |
611 |
} |
*pCancelReleaseEvent = *pNoteOnEvent; |
612 |
|
pCancelReleaseEvent->Type = Event::type_cancel_release; // transform event type |
|
// allocate a new voice for the key |
|
|
Voice* pNewVoice = pKey->pActiveVoices->alloc(); |
|
|
if (pNewVoice) { |
|
|
// launch the new voice |
|
|
if (pNewVoice->Trigger(pNoteOnEvent, this->Pitch, this->pInstrument) < 0) { |
|
|
dmsg(1,("Triggering new voice failed!\n")); |
|
|
pKey->pActiveVoices->free(pNewVoice); |
|
|
} |
|
|
else if (!pKey->Active) { // mark as active key |
|
|
pKey->Active = true; |
|
|
pKey->pSelf = pActiveKeys->alloc(); |
|
|
*pKey->pSelf = pNoteOnEvent->Key; |
|
613 |
} |
} |
614 |
|
else dmsg(1,("Event pool emtpy!\n")); |
615 |
} |
} |
616 |
else std::cerr << "No free voice!" << std::endl << std::flush; |
|
617 |
|
// allocate and trigger a new voice for the key |
618 |
|
LaunchVoice(pNoteOnEvent); |
619 |
|
|
620 |
|
// finally move note on event to the key's own event list |
621 |
|
pEvents->move(pNoteOnEvent, pKey->pEvents); |
622 |
} |
} |
623 |
|
|
624 |
/** |
/** |
630 |
* @param pNoteOffEvent - key, velocity and time stamp of the event |
* @param pNoteOffEvent - key, velocity and time stamp of the event |
631 |
*/ |
*/ |
632 |
void Engine::ProcessNoteOff(Event* pNoteOffEvent) { |
void Engine::ProcessNoteOff(Event* pNoteOffEvent) { |
633 |
midi_key_info_t* pKey = &pMIDIKeyInfo[pNoteOffEvent->Key]; |
midi_key_info_t* pKey = &pMIDIKeyInfo[pNoteOffEvent->Param.Note.Key]; |
634 |
|
|
635 |
pKey->KeyPressed = false; // the MIDI key was now released |
pKey->KeyPressed = false; // the MIDI key was now released |
636 |
|
|
637 |
// release voices on this key if needed |
// release voices on this key if needed |
638 |
if (pKey->Active && !SustainPedal) { |
if (pKey->Active && !SustainPedal) { |
639 |
pNoteOffEvent->Type = Event::type_release; // transform event type |
pNoteOffEvent->Type = Event::type_release; // transform event type |
|
pEvents->move(pNoteOffEvent, pKey->pEvents); // move event to the key's own event list |
|
640 |
} |
} |
641 |
|
|
642 |
|
// spawn release triggered voice(s) if needed |
643 |
|
if (pKey->ReleaseTrigger) { |
644 |
|
LaunchVoice(pNoteOffEvent, 0, true); |
645 |
|
pKey->ReleaseTrigger = false; |
646 |
|
} |
647 |
|
|
648 |
|
// move event to the key's own event list |
649 |
|
pEvents->move(pNoteOffEvent, pKey->pEvents); |
650 |
} |
} |
651 |
|
|
652 |
/** |
/** |
656 |
* @param pPitchbendEvent - absolute pitch value and time stamp of the event |
* @param pPitchbendEvent - absolute pitch value and time stamp of the event |
657 |
*/ |
*/ |
658 |
void Engine::ProcessPitchbend(Event* pPitchbendEvent) { |
void Engine::ProcessPitchbend(Event* pPitchbendEvent) { |
659 |
this->Pitch = pPitchbendEvent->Pitch; // store current pitch value |
this->Pitch = pPitchbendEvent->Param.Pitch.Pitch; // store current pitch value |
660 |
pEvents->move(pPitchbendEvent, pSynthesisEvents[Event::destination_vco]); |
pEvents->move(pPitchbendEvent, pSynthesisEvents[Event::destination_vco]); |
661 |
} |
} |
662 |
|
|
663 |
/** |
/** |
664 |
|
* Allocates and triggers a new voice. This method will usually be |
665 |
|
* called by the ProcessNoteOn() method and by the voices itself |
666 |
|
* (e.g. to spawn further voices on the same key for layered sounds). |
667 |
|
* |
668 |
|
* @param pNoteOnEvent - key, velocity and time stamp of the event |
669 |
|
* @param iLayer - layer index for the new voice (optional - only |
670 |
|
* in case of layered sounds of course) |
671 |
|
* @param ReleaseTriggerVoice - if new voice is a release triggered voice |
672 |
|
* (optional, default = false) |
673 |
|
* @param VoiceStealing - if voice stealing should be performed |
674 |
|
* when there is no free voice |
675 |
|
* (optional, default = true) |
676 |
|
* @returns pointer to new voice or NULL if there was no free voice or |
677 |
|
* if an error occured while trying to trigger the new voice |
678 |
|
*/ |
679 |
|
Voice* Engine::LaunchVoice(Event* pNoteOnEvent, int iLayer, bool ReleaseTriggerVoice, bool VoiceStealing) { |
680 |
|
midi_key_info_t* pKey = &pMIDIKeyInfo[pNoteOnEvent->Param.Note.Key]; |
681 |
|
|
682 |
|
// allocate a new voice for the key |
683 |
|
Voice* pNewVoice = pKey->pActiveVoices->alloc(); |
684 |
|
if (pNewVoice) { |
685 |
|
// launch the new voice |
686 |
|
if (pNewVoice->Trigger(pNoteOnEvent, this->Pitch, this->pInstrument, iLayer, ReleaseTriggerVoice) < 0) { |
687 |
|
dmsg(1,("Triggering new voice failed!\n")); |
688 |
|
pKey->pActiveVoices->free(pNewVoice); |
689 |
|
} |
690 |
|
else { // on success |
691 |
|
uint** ppKeyGroup = NULL; |
692 |
|
if (pNewVoice->KeyGroup) { // if this voice / key belongs to a key group |
693 |
|
ppKeyGroup = &ActiveKeyGroups[pNewVoice->KeyGroup]; |
694 |
|
if (*ppKeyGroup) { // if there's already an active key in that key group |
695 |
|
midi_key_info_t* pOtherKey = &pMIDIKeyInfo[**ppKeyGroup]; |
696 |
|
// kill all voices on the (other) key |
697 |
|
Voice* pVoiceToBeKilled = pOtherKey->pActiveVoices->first(); |
698 |
|
while (pVoiceToBeKilled) { |
699 |
|
Voice* pVoiceToBeKilledNext = pOtherKey->pActiveVoices->next(); |
700 |
|
if (pVoiceToBeKilled->Type != Voice::type_release_trigger) pVoiceToBeKilled->Kill(pNoteOnEvent); |
701 |
|
pOtherKey->pActiveVoices->set_current(pVoiceToBeKilled); |
702 |
|
pVoiceToBeKilled = pVoiceToBeKilledNext; |
703 |
|
} |
704 |
|
} |
705 |
|
} |
706 |
|
if (!pKey->Active) { // mark as active key |
707 |
|
pKey->Active = true; |
708 |
|
pKey->pSelf = pActiveKeys->alloc(); |
709 |
|
*pKey->pSelf = pNoteOnEvent->Param.Note.Key; |
710 |
|
} |
711 |
|
if (pNewVoice->KeyGroup) { |
712 |
|
*ppKeyGroup = pKey->pSelf; // put key as the (new) active key to its key group |
713 |
|
} |
714 |
|
if (pNewVoice->Type == Voice::type_release_trigger_required) pKey->ReleaseTrigger = true; // mark key for the need of release triggered voice(s) |
715 |
|
return pNewVoice; // success |
716 |
|
} |
717 |
|
} |
718 |
|
else if (VoiceStealing) StealVoice(pNoteOnEvent, iLayer, ReleaseTriggerVoice); // no free voice left, so steal one |
719 |
|
|
720 |
|
return NULL; // no free voice or error |
721 |
|
} |
722 |
|
|
723 |
|
/** |
724 |
|
* Will be called by LaunchVoice() method in case there are no free |
725 |
|
* voices left. This method will select and kill one old voice for |
726 |
|
* voice stealing and postpone the note-on event until the selected |
727 |
|
* voice actually died. |
728 |
|
* |
729 |
|
* @param pNoteOnEvent - key, velocity and time stamp of the event |
730 |
|
* @param iLayer - layer index for the new voice |
731 |
|
* @param ReleaseTriggerVoice - if new voice is a release triggered voice |
732 |
|
*/ |
733 |
|
void Engine::StealVoice(Event* pNoteOnEvent, int iLayer, bool ReleaseTriggerVoice) { |
734 |
|
if (!pEventPool->pool_is_empty()) { |
735 |
|
|
736 |
|
uint* puiOldestKey; |
737 |
|
Voice* pOldestVoice; |
738 |
|
|
739 |
|
// Select one voice for voice stealing |
740 |
|
switch (VOICE_STEAL_ALGORITHM) { |
741 |
|
|
742 |
|
// try to pick the oldest voice on the key where the new |
743 |
|
// voice should be spawned, if there is no voice on that |
744 |
|
// key, or no voice left to kill there, then procceed with |
745 |
|
// 'oldestkey' algorithm |
746 |
|
case voice_steal_algo_keymask: { |
747 |
|
midi_key_info_t* pOldestKey = &pMIDIKeyInfo[pNoteOnEvent->Param.Note.Key]; |
748 |
|
if (pLastStolenVoice) { |
749 |
|
pOldestKey->pActiveVoices->set_current(pLastStolenVoice); |
750 |
|
pOldestVoice = pOldestKey->pActiveVoices->next(); |
751 |
|
} |
752 |
|
else { // no voice stolen in this audio fragment cycle yet |
753 |
|
pOldestVoice = pOldestKey->pActiveVoices->first(); |
754 |
|
} |
755 |
|
if (pOldestVoice) { |
756 |
|
puiOldestKey = pOldestKey->pSelf; |
757 |
|
break; // selection succeeded |
758 |
|
} |
759 |
|
} // no break - intentional ! |
760 |
|
|
761 |
|
// try to pick the oldest voice on the oldest active key |
762 |
|
// (caution: must stay after 'keymask' algorithm !) |
763 |
|
case voice_steal_algo_oldestkey: { |
764 |
|
if (pLastStolenVoice) { |
765 |
|
midi_key_info_t* pOldestKey = &pMIDIKeyInfo[*puiLastStolenKey]; |
766 |
|
pOldestKey->pActiveVoices->set_current(pLastStolenVoice); |
767 |
|
pOldestVoice = pOldestKey->pActiveVoices->next(); |
768 |
|
if (!pOldestVoice) { |
769 |
|
pActiveKeys->set_current(puiLastStolenKey); |
770 |
|
puiOldestKey = pActiveKeys->next(); |
771 |
|
if (puiOldestKey) { |
772 |
|
midi_key_info_t* pOldestKey = &pMIDIKeyInfo[*puiOldestKey]; |
773 |
|
pOldestVoice = pOldestKey->pActiveVoices->first(); |
774 |
|
} |
775 |
|
else { // too less voices, even for voice stealing |
776 |
|
dmsg(1,("Voice overflow! - You might recompile with higher MAX_AUDIO_VOICES!\n")); |
777 |
|
return; |
778 |
|
} |
779 |
|
} |
780 |
|
else puiOldestKey = puiLastStolenKey; |
781 |
|
} |
782 |
|
else { // no voice stolen in this audio fragment cycle yet |
783 |
|
puiOldestKey = pActiveKeys->first(); |
784 |
|
midi_key_info_t* pOldestKey = &pMIDIKeyInfo[*puiOldestKey]; |
785 |
|
pOldestVoice = pOldestKey->pActiveVoices->first(); |
786 |
|
} |
787 |
|
break; |
788 |
|
} |
789 |
|
|
790 |
|
// don't steal anything |
791 |
|
case voice_steal_algo_none: |
792 |
|
default: { |
793 |
|
dmsg(1,("No free voice (voice stealing disabled)!\n")); |
794 |
|
return; |
795 |
|
} |
796 |
|
} |
797 |
|
|
798 |
|
// now kill the selected voice |
799 |
|
pOldestVoice->Kill(pNoteOnEvent); |
800 |
|
// remember which voice on which key we stole, so we can simply proceed for the next voice stealing |
801 |
|
this->pLastStolenVoice = pOldestVoice; |
802 |
|
this->puiLastStolenKey = puiOldestKey; |
803 |
|
// put note-on event into voice-stealing queue, so it will be reprocessed after killed voice died |
804 |
|
Event* pStealEvent = pVoiceStealingQueue->alloc(); |
805 |
|
*pStealEvent = *pNoteOnEvent; |
806 |
|
pStealEvent->Param.Note.Layer = iLayer; |
807 |
|
pStealEvent->Param.Note.ReleaseTrigger = ReleaseTriggerVoice; |
808 |
|
} |
809 |
|
else dmsg(1,("Event pool emtpy!\n")); |
810 |
|
} |
811 |
|
|
812 |
|
/** |
813 |
* Immediately kills the voice given with pVoice (no matter if sustain is |
* Immediately kills the voice given with pVoice (no matter if sustain is |
814 |
* pressed or not) and removes it from the MIDI key's list of active voice. |
* pressed or not) and removes it from the MIDI key's list of active voice. |
815 |
* This method will e.g. be called if a voice went inactive by itself. |
* This method will e.g. be called if a voice went inactive by itself. |
816 |
* |
* |
817 |
* @param pVoice - points to the voice to be killed |
* @param pVoice - points to the voice to be killed |
818 |
*/ |
*/ |
819 |
void Engine::KillVoice(Voice* pVoice) { |
void Engine::KillVoiceImmediately(Voice* pVoice) { |
820 |
if (pVoice) { |
if (pVoice) { |
821 |
if (pVoice->IsActive()) pVoice->Kill(); |
if (pVoice->IsActive()) pVoice->KillImmediately(); |
822 |
|
|
823 |
midi_key_info_t* pKey = &pMIDIKeyInfo[pVoice->MIDIKey]; |
midi_key_info_t* pKey = &pMIDIKeyInfo[pVoice->MIDIKey]; |
824 |
|
|
827 |
|
|
828 |
// check if there are no voices left on the MIDI key and update the key info if so |
// check if there are no voices left on the MIDI key and update the key info if so |
829 |
if (pKey->pActiveVoices->is_empty()) { |
if (pKey->pActiveVoices->is_empty()) { |
830 |
|
if (pVoice->KeyGroup) { // if voice / key belongs to a key group |
831 |
|
uint** ppKeyGroup = &ActiveKeyGroups[pVoice->KeyGroup]; |
832 |
|
if (*ppKeyGroup == pKey->pSelf) *ppKeyGroup = NULL; // remove key from key group |
833 |
|
} |
834 |
pKey->Active = false; |
pKey->Active = false; |
835 |
pActiveKeys->free(pKey->pSelf); // remove key from list of active keys |
pActiveKeys->free(pKey->pSelf); // remove key from list of active keys |
836 |
pKey->pSelf = NULL; |
pKey->pSelf = NULL; |
837 |
|
pKey->ReleaseTrigger = false; |
838 |
|
pKey->pEvents->clear(); |
839 |
dmsg(3,("Key has no more voices now\n")); |
dmsg(3,("Key has no more voices now\n")); |
840 |
} |
} |
841 |
} |
} |
849 |
* @param pControlChangeEvent - controller, value and time stamp of the event |
* @param pControlChangeEvent - controller, value and time stamp of the event |
850 |
*/ |
*/ |
851 |
void Engine::ProcessControlChange(Event* pControlChangeEvent) { |
void Engine::ProcessControlChange(Event* pControlChangeEvent) { |
852 |
dmsg(4,("Engine::ContinuousController cc=%d v=%d\n", pControlChangeEvent->Controller, pControlChangeEvent->Value)); |
dmsg(4,("Engine::ContinuousController cc=%d v=%d\n", pControlChangeEvent->Param.CC.Controller, pControlChangeEvent->Param.CC.Value)); |
853 |
|
|
854 |
switch (pControlChangeEvent->Controller) { |
switch (pControlChangeEvent->Param.CC.Controller) { |
855 |
case 64: { |
case 64: { |
856 |
if (pControlChangeEvent->Value >= 64 && !SustainPedal) { |
if (pControlChangeEvent->Param.CC.Value >= 64 && !SustainPedal) { |
857 |
dmsg(4,("PEDAL DOWN\n")); |
dmsg(4,("PEDAL DOWN\n")); |
858 |
SustainPedal = true; |
SustainPedal = true; |
859 |
|
|
873 |
} |
} |
874 |
} |
} |
875 |
} |
} |
876 |
if (pControlChangeEvent->Value < 64 && SustainPedal) { |
if (pControlChangeEvent->Param.CC.Value < 64 && SustainPedal) { |
877 |
dmsg(4,("PEDAL UP\n")); |
dmsg(4,("PEDAL UP\n")); |
878 |
SustainPedal = false; |
SustainPedal = false; |
879 |
|
|
898 |
} |
} |
899 |
|
|
900 |
// update controller value in the engine's controller table |
// update controller value in the engine's controller table |
901 |
ControllerTable[pControlChangeEvent->Controller] = pControlChangeEvent->Value; |
ControllerTable[pControlChangeEvent->Param.CC.Controller] = pControlChangeEvent->Param.CC.Value; |
902 |
|
|
903 |
// 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 |
904 |
pEvents->move(pControlChangeEvent, pCCEvents); |
pEvents->move(pControlChangeEvent, pCCEvents); |
905 |
} |
} |
906 |
|
|
907 |
/** |
/** |
908 |
|
* Reacts on MIDI system exclusive messages. |
909 |
|
* |
910 |
|
* @param pSysexEvent - sysex data size and time stamp of the sysex event |
911 |
|
*/ |
912 |
|
void Engine::ProcessSysex(Event* pSysexEvent) { |
913 |
|
RingBuffer<uint8_t>::NonVolatileReader reader = pSysexBuffer->get_non_volatile_reader(); |
914 |
|
|
915 |
|
uint8_t exclusive_status, id; |
916 |
|
if (!reader.pop(&exclusive_status)) goto free_sysex_data; |
917 |
|
if (!reader.pop(&id)) goto free_sysex_data; |
918 |
|
if (exclusive_status != 0xF0) goto free_sysex_data; |
919 |
|
|
920 |
|
switch (id) { |
921 |
|
case 0x41: { // Roland |
922 |
|
uint8_t device_id, model_id, cmd_id; |
923 |
|
if (!reader.pop(&device_id)) goto free_sysex_data; |
924 |
|
if (!reader.pop(&model_id)) goto free_sysex_data; |
925 |
|
if (!reader.pop(&cmd_id)) goto free_sysex_data; |
926 |
|
if (model_id != 0x42 /*GS*/) goto free_sysex_data; |
927 |
|
if (cmd_id != 0x12 /*DT1*/) goto free_sysex_data; |
928 |
|
|
929 |
|
// command address |
930 |
|
uint8_t addr[3]; // 2 byte addr MSB, followed by 1 byte addr LSB) |
931 |
|
const RingBuffer<uint8_t>::NonVolatileReader checksum_reader = reader; // so we can calculate the check sum later |
932 |
|
if (reader.read(&addr[0], 3) != 3) goto free_sysex_data; |
933 |
|
if (addr[0] == 0x40 && addr[1] == 0x00) { // System Parameters |
934 |
|
} |
935 |
|
else if (addr[0] == 0x40 && addr[1] == 0x01) { // Common Parameters |
936 |
|
} |
937 |
|
else if (addr[0] == 0x40 && (addr[1] & 0xf0) == 0x10) { // Part Parameters (1) |
938 |
|
switch (addr[3]) { |
939 |
|
case 0x40: { // scale tuning |
940 |
|
uint8_t scale_tunes[12]; // detuning of all 12 semitones of an octave |
941 |
|
if (reader.read(&scale_tunes[0], 12) != 12) goto free_sysex_data; |
942 |
|
uint8_t checksum; |
943 |
|
if (!reader.pop(&checksum)) goto free_sysex_data; |
944 |
|
if (GSCheckSum(checksum_reader, 12) != checksum) goto free_sysex_data; |
945 |
|
for (int i = 0; i < 12; i++) scale_tunes[i] -= 64; |
946 |
|
AdjustScale((int8_t*) scale_tunes); |
947 |
|
break; |
948 |
|
} |
949 |
|
} |
950 |
|
} |
951 |
|
else if (addr[0] == 0x40 && (addr[1] & 0xf0) == 0x20) { // Part Parameters (2) |
952 |
|
} |
953 |
|
else if (addr[0] == 0x41) { // Drum Setup Parameters |
954 |
|
} |
955 |
|
break; |
956 |
|
} |
957 |
|
} |
958 |
|
|
959 |
|
free_sysex_data: // finally free sysex data |
960 |
|
pSysexBuffer->increment_read_ptr(pSysexEvent->Param.Sysex.Size); |
961 |
|
} |
962 |
|
|
963 |
|
/** |
964 |
|
* Calculates the Roland GS sysex check sum. |
965 |
|
* |
966 |
|
* @param AddrReader - reader which currently points to the first GS |
967 |
|
* command address byte of the GS sysex message in |
968 |
|
* question |
969 |
|
* @param DataSize - size of the GS message data (in bytes) |
970 |
|
*/ |
971 |
|
uint8_t Engine::GSCheckSum(const RingBuffer<uint8_t>::NonVolatileReader AddrReader, uint DataSize) { |
972 |
|
RingBuffer<uint8_t>::NonVolatileReader reader = AddrReader; |
973 |
|
uint bytes = 3 /*addr*/ + DataSize; |
974 |
|
uint8_t addr_and_data[bytes]; |
975 |
|
reader.read(&addr_and_data[0], bytes); |
976 |
|
uint8_t sum = 0; |
977 |
|
for (uint i = 0; i < bytes; i++) sum += addr_and_data[i]; |
978 |
|
return 128 - sum % 128; |
979 |
|
} |
980 |
|
|
981 |
|
/** |
982 |
|
* Allows to tune each of the twelve semitones of an octave. |
983 |
|
* |
984 |
|
* @param ScaleTunes - detuning of all twelve semitones (in cents) |
985 |
|
*/ |
986 |
|
void Engine::AdjustScale(int8_t ScaleTunes[12]) { |
987 |
|
memcpy(&this->ScaleTuning[0], &ScaleTunes[0], 12); //TODO: currently not sample accurate |
988 |
|
} |
989 |
|
|
990 |
|
/** |
991 |
* Initialize the parameter sequence for the modulation destination given by |
* Initialize the parameter sequence for the modulation destination given by |
992 |
* by 'dst' with the constant value given by val. |
* by 'dst' with the constant value given by val. |
993 |
*/ |
*/ |
1010 |
GlobalVolume = f; |
GlobalVolume = f; |
1011 |
} |
} |
1012 |
|
|
1013 |
|
uint Engine::Channels() { |
1014 |
|
return 2; |
1015 |
|
} |
1016 |
|
|
1017 |
|
void Engine::SetOutputChannel(uint EngineAudioChannel, uint AudioDeviceChannel) { |
1018 |
|
AudioChannel* pChannel = pAudioOutputDevice->Channel(AudioDeviceChannel); |
1019 |
|
if (!pChannel) throw AudioOutputException("Invalid audio output device channel " + ToString(AudioDeviceChannel)); |
1020 |
|
switch (EngineAudioChannel) { |
1021 |
|
case 0: // left output channel |
1022 |
|
pOutputLeft = pChannel->Buffer(); |
1023 |
|
AudioDeviceChannelLeft = AudioDeviceChannel; |
1024 |
|
break; |
1025 |
|
case 1: // right output channel |
1026 |
|
pOutputRight = pChannel->Buffer(); |
1027 |
|
AudioDeviceChannelRight = AudioDeviceChannel; |
1028 |
|
break; |
1029 |
|
default: |
1030 |
|
throw AudioOutputException("Invalid engine audio channel " + ToString(EngineAudioChannel)); |
1031 |
|
} |
1032 |
|
} |
1033 |
|
|
1034 |
|
int Engine::OutputChannel(uint EngineAudioChannel) { |
1035 |
|
switch (EngineAudioChannel) { |
1036 |
|
case 0: // left channel |
1037 |
|
return AudioDeviceChannelLeft; |
1038 |
|
case 1: // right channel |
1039 |
|
return AudioDeviceChannelRight; |
1040 |
|
default: |
1041 |
|
throw AudioOutputException("Invalid engine audio channel " + ToString(EngineAudioChannel)); |
1042 |
|
} |
1043 |
|
} |
1044 |
|
|
1045 |
uint Engine::VoiceCount() { |
uint Engine::VoiceCount() { |
1046 |
return ActiveVoiceCount; |
return ActiveVoiceCount; |
1047 |
} |
} |
1091 |
} |
} |
1092 |
|
|
1093 |
String Engine::Version() { |
String Engine::Version() { |
1094 |
String s = "$Revision: 1.7 $"; |
String s = "$Revision: 1.14 $"; |
1095 |
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 |
1096 |
} |
} |
1097 |
|
|