56 |
// check if there's already an engine for the given audio output device |
// check if there's already an engine for the given audio output device |
57 |
if (engines.count(pDevice)) { |
if (engines.count(pDevice)) { |
58 |
dmsg(4,("Using existing gig::Engine.\n")); |
dmsg(4,("Using existing gig::Engine.\n")); |
59 |
pEngine = engines[pDevice]; |
pEngine = engines[pDevice]; |
60 |
} else { // create a new engine (and disk thread) instance for the given audio output device |
} else { // create a new engine (and disk thread) instance for the given audio output device |
61 |
dmsg(4,("Creating new gig::Engine.\n")); |
dmsg(4,("Creating new gig::Engine.\n")); |
62 |
pEngine = (Engine*) EngineFactory::Create("gig"); |
pEngine = (Engine*) EngineFactory::Create("gig"); |
63 |
pEngine->Connect(pDevice); |
pEngine->Connect(pDevice); |
64 |
engines[pDevice] = pEngine; |
engines[pDevice] = pEngine; |
65 |
} |
} |
66 |
// register engine channel to the engine instance |
// register engine channel to the engine instance |
67 |
pEngine->engineChannels.push_back(pChannel); |
pEngine->engineChannels.add(pChannel); |
68 |
|
// remember index in the ArrayList |
69 |
|
pChannel->iEngineIndexSelf = pEngine->engineChannels.size() - 1; |
70 |
dmsg(4,("This gig::Engine has now %d EngineChannels.\n",pEngine->engineChannels.size())); |
dmsg(4,("This gig::Engine has now %d EngineChannels.\n",pEngine->engineChannels.size())); |
71 |
return pEngine; |
return pEngine; |
72 |
} |
} |
103 |
pSysexBuffer = new RingBuffer<uint8_t>(SYSEX_BUFFER_SIZE, 0); |
pSysexBuffer = new RingBuffer<uint8_t>(SYSEX_BUFFER_SIZE, 0); |
104 |
pEventQueue = new RingBuffer<Event>(MAX_EVENTS_PER_FRAGMENT, 0); |
pEventQueue = new RingBuffer<Event>(MAX_EVENTS_PER_FRAGMENT, 0); |
105 |
pEventPool = new Pool<Event>(MAX_EVENTS_PER_FRAGMENT); |
pEventPool = new Pool<Event>(MAX_EVENTS_PER_FRAGMENT); |
106 |
pVoicePool = new Pool<Voice>(MAX_AUDIO_VOICES); |
pVoicePool = new Pool<Voice>(MAX_AUDIO_VOICES); |
107 |
pVoiceStealingQueue = new RTList<Event>(pEventPool); |
pVoiceStealingQueue = new RTList<Event>(pEventPool); |
108 |
pEvents = new RTList<Event>(pEventPool); |
pGlobalEvents = new RTList<Event>(pEventPool); |
|
pCCEvents = new RTList<Event>(pEventPool); |
|
|
|
|
|
for (uint i = 0; i < Event::destination_count; i++) { |
|
|
pSynthesisEvents[i] = new RTList<Event>(pEventPool); |
|
|
} |
|
109 |
for (RTList<Voice>::Iterator iterVoice = pVoicePool->allocAppend(); iterVoice == pVoicePool->last(); iterVoice = pVoicePool->allocAppend()) { |
for (RTList<Voice>::Iterator iterVoice = pVoicePool->allocAppend(); iterVoice == pVoicePool->last(); iterVoice = pVoicePool->allocAppend()) { |
110 |
iterVoice->SetEngine(this); |
iterVoice->SetEngine(this); |
111 |
} |
} |
125 |
delete pDiskThread; |
delete pDiskThread; |
126 |
dmsg(1,("OK\n")); |
dmsg(1,("OK\n")); |
127 |
} |
} |
|
for (uint i = 0; i < Event::destination_count; i++) { |
|
|
if (pSynthesisEvents[i]) delete pSynthesisEvents[i]; |
|
|
} |
|
|
if (pEvents) delete pEvents; |
|
|
if (pCCEvents) delete pCCEvents; |
|
128 |
if (pEventQueue) delete pEventQueue; |
if (pEventQueue) delete pEventQueue; |
129 |
if (pEventPool) delete pEventPool; |
if (pEventPool) delete pEventPool; |
130 |
if (pVoicePool) { |
if (pVoicePool) { |
178 |
|
|
179 |
// reset voice stealing parameters |
// reset voice stealing parameters |
180 |
pVoiceStealingQueue->clear(); |
pVoiceStealingQueue->clear(); |
181 |
|
itLastStolenVoice = RTList<Voice>::Iterator(); |
182 |
|
iuiLastStolenKey = RTList<uint>::Iterator(); |
183 |
|
pLastStolenChannel = NULL; |
184 |
|
|
185 |
// reset to normal chromatic scale (means equal temper) |
// reset to normal chromatic scale (means equal temper) |
186 |
memset(&ScaleTuning[0], 0x00, 12); |
memset(&ScaleTuning[0], 0x00, 12); |
196 |
|
|
197 |
// delete all input events |
// delete all input events |
198 |
pEventQueue->init(); |
pEventQueue->init(); |
199 |
} |
} |
200 |
|
|
201 |
void Engine::Connect(AudioOutputDevice* pAudioOut) { |
void Engine::Connect(AudioOutputDevice* pAudioOut) { |
202 |
pAudioOutputDevice = pAudioOut; |
pAudioOutputDevice = pAudioOut; |
211 |
String msg = "Audio output device unable to provide 2 audio channels, cause: " + e.Message(); |
String msg = "Audio output device unable to provide 2 audio channels, cause: " + e.Message(); |
212 |
throw LinuxSamplerException(msg); |
throw LinuxSamplerException(msg); |
213 |
} |
} |
214 |
|
|
215 |
this->MaxSamplesPerCycle = pAudioOutputDevice->MaxSamplesPerCycle(); |
this->MaxSamplesPerCycle = pAudioOutputDevice->MaxSamplesPerCycle(); |
216 |
this->SampleRate = pAudioOutputDevice->SampleRate(); |
this->SampleRate = pAudioOutputDevice->SampleRate(); |
217 |
|
|
218 |
// FIXME: audio drivers with varying fragment sizes might be a problem here |
// FIXME: audio drivers with varying fragment sizes might be a problem here |
219 |
MaxFadeOutPos = MaxSamplesPerCycle - int(double(SampleRate) * EG_MIN_RELEASE_TIME) - 1; |
MaxFadeOutPos = MaxSamplesPerCycle - int(double(SampleRate) * EG_MIN_RELEASE_TIME) - 1; |
273 |
} |
} |
274 |
|
|
275 |
void Engine::ClearEventLists() { |
void Engine::ClearEventLists() { |
276 |
pEvents->clear(); |
pGlobalEvents->clear(); |
|
pCCEvents->clear(); |
|
|
for (uint i = 0; i < Event::destination_count; i++) { |
|
|
pSynthesisEvents[i]->clear(); |
|
|
} |
|
277 |
} |
} |
278 |
|
|
279 |
/** |
/** |
280 |
* Copy all events from the given input queue buffer to the engine's |
* Copy all events from the engine's global input queue buffer to the |
281 |
* internal event list. This will be done at the beginning of each audio |
* engine's internal event list. This will be done at the beginning of |
282 |
* cycle (that is each RenderAudio() call) to get all events which have |
* each audio cycle (that is each RenderAudio() call) to distinguish |
283 |
* to be processed in the current audio cycle. Each EngineChannel has |
* all global events which have to be processed in the current audio |
284 |
* it's own input event queue for the common channel specific events |
* cycle. These events are usually just SysEx messages. Every |
285 |
* (like NoteOn, NoteOff and ControlChange events). Beside that, the |
* EngineChannel has it's own input event queue buffer and event list |
286 |
* engine also has a input event queue for global events (usually SysEx |
* to handle common events like NoteOn, NoteOff and ControlChange |
287 |
* message). |
* events. |
288 |
* |
* |
289 |
* @param pEventQueue - input event buffer to read from |
* @param Samples - number of sample points to be processed in the |
290 |
* @param Samples - number of sample points to be processed in the |
* current audio cycle |
|
* current audio cycle |
|
291 |
*/ |
*/ |
292 |
void Engine::ImportEvents(RingBuffer<Event>* pEventQueue, uint Samples) { |
void Engine::ImportEvents(uint Samples) { |
293 |
RingBuffer<Event>::NonVolatileReader eventQueueReader = pEventQueue->get_non_volatile_reader(); |
RingBuffer<Event>::NonVolatileReader eventQueueReader = pEventQueue->get_non_volatile_reader(); |
294 |
Event* pEvent; |
Event* pEvent; |
295 |
while (true) { |
while (true) { |
303 |
break; |
break; |
304 |
} |
} |
305 |
// copy event to internal event list |
// copy event to internal event list |
306 |
if (pEvents->poolIsEmpty()) { |
if (pGlobalEvents->poolIsEmpty()) { |
307 |
dmsg(1,("Event pool emtpy!\n")); |
dmsg(1,("Event pool emtpy!\n")); |
308 |
break; |
break; |
309 |
} |
} |
310 |
*pEvents->allocAppend() = *pEvent; |
*pGlobalEvents->allocAppend() = *pEvent; |
311 |
} |
} |
312 |
eventQueueReader.free(); // free all copied events from input queue |
eventQueueReader.free(); // free all copied events from input queue |
313 |
} |
} |
314 |
|
|
315 |
/** |
/** |
316 |
* Let this engine proceed to render the given amount of sample points. The |
* Let this engine proceed to render the given amount of sample points. The |
334 |
// update time of start and end of this audio fragment (as events' time stamps relate to this) |
// update time of start and end of this audio fragment (as events' time stamps relate to this) |
335 |
pEventGenerator->UpdateFragmentTime(Samples); |
pEventGenerator->UpdateFragmentTime(Samples); |
336 |
|
|
|
// empty the engine's event lists for the new fragment |
|
|
ClearEventLists(); |
|
|
|
|
337 |
// get all events from the engine's global input event queue which belong to the current fragment |
// get all events from the engine's global input event queue which belong to the current fragment |
338 |
// (these are usually just SysEx messages) |
// (these are usually just SysEx messages) |
339 |
ImportEvents(this->pEventQueue, Samples); |
ImportEvents(Samples); |
340 |
|
|
341 |
// process engine global events (these are currently only MIDI System Exclusive messages) |
// process engine global events (these are currently only MIDI System Exclusive messages) |
342 |
{ |
{ |
343 |
RTList<Event>::Iterator itEvent = pEvents->first(); |
RTList<Event>::Iterator itEvent = pGlobalEvents->first(); |
344 |
RTList<Event>::Iterator end = pEvents->end(); |
RTList<Event>::Iterator end = pGlobalEvents->end(); |
345 |
for (; itEvent != end; ++itEvent) { |
for (; itEvent != end; ++itEvent) { |
346 |
switch (itEvent->Type) { |
switch (itEvent->Type) { |
347 |
case Event::type_sysex: |
case Event::type_sysex: |
352 |
} |
} |
353 |
} |
} |
354 |
|
|
355 |
|
// We only allow a maximum of MAX_AUDIO_VOICES voices to be stolen |
356 |
|
// in each audio fragment. All subsequent request for spawning new |
357 |
|
// voices in the same audio fragment will be ignored. |
358 |
|
VoiceTheftsLeft = MAX_AUDIO_VOICES; |
359 |
|
|
360 |
// reset internal voice counter (just for statistic of active voices) |
// reset internal voice counter (just for statistic of active voices) |
361 |
ActiveVoiceCountTemp = 0; |
ActiveVoiceCountTemp = 0; |
362 |
|
|
363 |
// render audio for all engine channels |
|
364 |
// TODO: should we make voice stealing engine globally? unfortunately this would mean other disadvantages so I left voice stealing in the engine channel space for now |
// handle events on all engine channels |
365 |
{ |
for (int i = 0; i < engineChannels.size(); i++) { |
366 |
std::list<EngineChannel*>::iterator itChannel = engineChannels.begin(); |
if (!engineChannels[i]->pInstrument) continue; // ignore if no instrument loaded |
367 |
std::list<EngineChannel*>::iterator end = engineChannels.end(); |
ProcessEvents(engineChannels[i], Samples); |
|
for (; itChannel != end; itChannel++) { |
|
|
if (!(*itChannel)->pInstrument) continue; // ignore if no instrument loaded |
|
|
RenderAudio(*itChannel, Samples); |
|
|
} |
|
368 |
} |
} |
369 |
|
|
370 |
|
// render all 'normal', active voices on all engine channels |
371 |
|
for (int i = 0; i < engineChannels.size(); i++) { |
372 |
|
if (!engineChannels[i]->pInstrument) continue; // ignore if no instrument loaded |
373 |
|
RenderActiveVoices(engineChannels[i], Samples); |
374 |
|
} |
375 |
|
|
376 |
|
// now that all ordinary voices on ALL engine channels are rendered, render new stolen voices |
377 |
|
RenderStolenVoices(Samples); |
378 |
|
|
379 |
|
// handle cleanup on all engine channels for the next audio fragment |
380 |
|
for (int i = 0; i < engineChannels.size(); i++) { |
381 |
|
if (!engineChannels[i]->pInstrument) continue; // ignore if no instrument loaded |
382 |
|
PostProcess(engineChannels[i]); |
383 |
|
} |
384 |
|
|
385 |
|
|
386 |
|
// empty the engine's event list for the next audio fragment |
387 |
|
ClearEventLists(); |
388 |
|
|
389 |
|
// reset voice stealing for the next audio fragment |
390 |
|
pVoiceStealingQueue->clear(); |
391 |
|
itLastStolenVoice = RTList<Voice>::Iterator(); |
392 |
|
iuiLastStolenKey = RTList<uint>::Iterator(); |
393 |
|
pLastStolenChannel = NULL; |
394 |
|
|
395 |
// just some statistics about this engine instance |
// just some statistics about this engine instance |
396 |
ActiveVoiceCount = ActiveVoiceCountTemp; |
ActiveVoiceCount = ActiveVoiceCountTemp; |
397 |
if (ActiveVoiceCount > ActiveVoiceCountMax) ActiveVoiceCountMax = ActiveVoiceCount; |
if (ActiveVoiceCount > ActiveVoiceCountMax) ActiveVoiceCountMax = ActiveVoiceCount; |
399 |
return 0; |
return 0; |
400 |
} |
} |
401 |
|
|
402 |
void Engine::RenderAudio(EngineChannel* pEngineChannel, uint Samples) { |
void Engine::ProcessEvents(EngineChannel* pEngineChannel, uint Samples) { |
|
// empty the engine's event lists for the new fragment |
|
|
ClearEventLists(); |
|
|
// empty the engine channel's, MIDI key specific event lists |
|
|
{ |
|
|
RTList<uint>::Iterator iuiKey = pEngineChannel->pActiveKeys->first(); |
|
|
RTList<uint>::Iterator end = pEngineChannel->pActiveKeys->end(); |
|
|
for(; iuiKey != end; ++iuiKey) { |
|
|
pEngineChannel->pMIDIKeyInfo[*iuiKey].pEvents->clear(); // free all events on the key |
|
|
} |
|
|
} |
|
|
|
|
|
|
|
403 |
// get all events from the engine channels's input event queue which belong to the current fragment |
// get all events from the engine channels's input event queue which belong to the current fragment |
404 |
// (these are the common events like NoteOn, NoteOff, ControlChange, etc.) |
// (these are the common events like NoteOn, NoteOff, ControlChange, etc.) |
405 |
ImportEvents(pEngineChannel->pEventQueue, Samples); |
pEngineChannel->ImportEvents(Samples); |
|
|
|
406 |
|
|
407 |
// process events |
// process events |
408 |
{ |
{ |
409 |
RTList<Event>::Iterator itEvent = pEvents->first(); |
RTList<Event>::Iterator itEvent = pEngineChannel->pEvents->first(); |
410 |
RTList<Event>::Iterator end = pEvents->end(); |
RTList<Event>::Iterator end = pEngineChannel->pEvents->end(); |
411 |
for (; itEvent != end; ++itEvent) { |
for (; itEvent != end; ++itEvent) { |
412 |
switch (itEvent->Type) { |
switch (itEvent->Type) { |
413 |
case Event::type_note_on: |
case Event::type_note_on: |
429 |
} |
} |
430 |
} |
} |
431 |
} |
} |
432 |
|
} |
433 |
|
|
434 |
|
void Engine::RenderActiveVoices(EngineChannel* pEngineChannel, uint Samples) { |
435 |
|
RTList<uint>::Iterator iuiKey = pEngineChannel->pActiveKeys->first(); |
436 |
|
RTList<uint>::Iterator end = pEngineChannel->pActiveKeys->end(); |
437 |
|
while (iuiKey != end) { // iterate through all active keys |
438 |
|
midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[*iuiKey]; |
439 |
|
++iuiKey; |
440 |
|
|
441 |
// render audio from all active voices |
RTList<Voice>::Iterator itVoice = pKey->pActiveVoices->first(); |
442 |
{ |
RTList<Voice>::Iterator itVoicesEnd = pKey->pActiveVoices->end(); |
443 |
RTList<uint>::Iterator iuiKey = pEngineChannel->pActiveKeys->first(); |
for (; itVoice != itVoicesEnd; ++itVoice) { // iterate through all voices on this key |
444 |
RTList<uint>::Iterator end = pEngineChannel->pActiveKeys->end(); |
// now render current voice |
445 |
while (iuiKey != end) { // iterate through all active keys |
itVoice->Render(Samples); |
446 |
midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[*iuiKey]; |
if (itVoice->IsActive()) ActiveVoiceCountTemp++; // still active |
447 |
++iuiKey; |
else { // voice reached end, is now inactive |
448 |
|
FreeVoice(pEngineChannel, itVoice); // remove voice from the list of active voices |
|
RTList<Voice>::Iterator itVoice = pKey->pActiveVoices->first(); |
|
|
RTList<Voice>::Iterator itVoicesEnd = pKey->pActiveVoices->end(); |
|
|
for (; itVoice != itVoicesEnd; ++itVoice) { // iterate through all voices on this key |
|
|
// now render current voice |
|
|
itVoice->Render(Samples); |
|
|
if (itVoice->IsActive()) ActiveVoiceCountTemp++; // still active |
|
|
else { // voice reached end, is now inactive |
|
|
FreeVoice(pEngineChannel, itVoice); // remove voice from the list of active voices |
|
|
} |
|
449 |
} |
} |
450 |
} |
} |
451 |
} |
} |
452 |
|
} |
453 |
|
|
454 |
|
void Engine::RenderStolenVoices(uint Samples) { |
455 |
// now render all postponed voices from voice stealing |
RTList<Event>::Iterator itVoiceStealEvent = pVoiceStealingQueue->first(); |
456 |
{ |
RTList<Event>::Iterator end = pVoiceStealingQueue->end(); |
457 |
RTList<Event>::Iterator itVoiceStealEvent = pVoiceStealingQueue->first(); |
for (; itVoiceStealEvent != end; ++itVoiceStealEvent) { |
458 |
RTList<Event>::Iterator end = pVoiceStealingQueue->end(); |
EngineChannel* pEngineChannel = (EngineChannel*) itVoiceStealEvent->pEngineChannel; |
459 |
for (; itVoiceStealEvent != end; ++itVoiceStealEvent) { |
Pool<Voice>::Iterator itNewVoice = |
460 |
Pool<Voice>::Iterator itNewVoice = |
LaunchVoice(pEngineChannel, itVoiceStealEvent, itVoiceStealEvent->Param.Note.Layer, itVoiceStealEvent->Param.Note.ReleaseTrigger, false); |
461 |
LaunchVoice(pEngineChannel, itVoiceStealEvent, itVoiceStealEvent->Param.Note.Layer, itVoiceStealEvent->Param.Note.ReleaseTrigger, false); |
if (itNewVoice) { |
462 |
if (itNewVoice) { |
itNewVoice->Render(Samples); |
463 |
for (; itNewVoice; itNewVoice = itNewVoice->itChildVoice) { |
if (itNewVoice->IsActive()) ActiveVoiceCountTemp++; // still active |
464 |
itNewVoice->Render(Samples); |
else { // voice reached end, is now inactive |
465 |
if (itNewVoice->IsActive()) ActiveVoiceCountTemp++; // still active |
FreeVoice(pEngineChannel, itNewVoice); // remove voice from the list of active voices |
|
else { // voice reached end, is now inactive |
|
|
FreeVoice(pEngineChannel, itNewVoice); // remove voice from the list of active voices |
|
|
} |
|
|
} |
|
466 |
} |
} |
|
else dmsg(1,("gig::Engine: ERROR, voice stealing didn't work out!\n")); |
|
467 |
} |
} |
468 |
|
else dmsg(1,("gig::Engine: ERROR, voice stealing didn't work out!\n")); |
469 |
} |
} |
470 |
// reset voice stealing for the new fragment |
} |
|
pVoiceStealingQueue->clear(); |
|
|
pEngineChannel->itLastStolenVoice = RTList<Voice>::Iterator(); |
|
|
pEngineChannel->iuiLastStolenKey = RTList<uint>::Iterator(); |
|
|
|
|
471 |
|
|
472 |
|
void Engine::PostProcess(EngineChannel* pEngineChannel) { |
473 |
// free all keys which have no active voices left |
// free all keys which have no active voices left |
474 |
{ |
{ |
475 |
RTList<uint>::Iterator iuiKey = pEngineChannel->pActiveKeys->first(); |
RTList<uint>::Iterator iuiKey = pEngineChannel->pActiveKeys->first(); |
491 |
#endif // DEVMODE |
#endif // DEVMODE |
492 |
} |
} |
493 |
} |
} |
494 |
|
|
495 |
|
// empty the engine channel's own event lists |
496 |
|
pEngineChannel->ClearEventLists(); |
497 |
} |
} |
498 |
|
|
499 |
/** |
/** |
535 |
* @param itNoteOnEvent - key, velocity and time stamp of the event |
* @param itNoteOnEvent - key, velocity and time stamp of the event |
536 |
*/ |
*/ |
537 |
void Engine::ProcessNoteOn(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itNoteOnEvent) { |
void Engine::ProcessNoteOn(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itNoteOnEvent) { |
538 |
|
|
539 |
const int key = itNoteOnEvent->Param.Note.Key; |
const int key = itNoteOnEvent->Param.Note.Key; |
540 |
|
|
541 |
// Change key dimension value if key is in keyswitching area |
// Change key dimension value if key is in keyswitching area |
563 |
// move note on event to the key's own event list |
// move note on event to the key's own event list |
564 |
RTList<Event>::Iterator itNoteOnEventOnKeyList = itNoteOnEvent.moveToEndOf(pKey->pEvents); |
RTList<Event>::Iterator itNoteOnEventOnKeyList = itNoteOnEvent.moveToEndOf(pKey->pEvents); |
565 |
|
|
566 |
// allocate and trigger a new voice for the key |
// allocate and trigger new voice(s) for the key |
567 |
LaunchVoice(pEngineChannel, itNoteOnEventOnKeyList, 0, false, true); |
{ |
568 |
|
// first, get total amount of required voices (dependant on amount of layers) |
569 |
|
::gig::Region* pRegion = pEngineChannel->pInstrument->GetRegion(itNoteOnEventOnKeyList->Param.Note.Key); |
570 |
|
if (pRegion) { |
571 |
|
int voicesRequired = pRegion->Layers; |
572 |
|
// now launch the required amount of voices |
573 |
|
for (int i = 0; i < voicesRequired; i++) |
574 |
|
LaunchVoice(pEngineChannel, itNoteOnEventOnKeyList, i, false, true); |
575 |
|
} |
576 |
|
} |
577 |
|
|
578 |
|
pKey->RoundRobinIndex++; |
579 |
} |
} |
580 |
|
|
581 |
/** |
/** |
602 |
|
|
603 |
// spawn release triggered voice(s) if needed |
// spawn release triggered voice(s) if needed |
604 |
if (pKey->ReleaseTrigger) { |
if (pKey->ReleaseTrigger) { |
605 |
LaunchVoice(pEngineChannel, itNoteOffEventOnKeyList, 0, true, false); //FIXME: for the moment we don't perform voice stealing for release triggered samples |
// first, get total amount of required voices (dependant on amount of layers) |
606 |
|
::gig::Region* pRegion = pEngineChannel->pInstrument->GetRegion(itNoteOffEventOnKeyList->Param.Note.Key); |
607 |
|
if (pRegion) { |
608 |
|
int voicesRequired = pRegion->Layers; |
609 |
|
// now launch the required amount of voices |
610 |
|
for (int i = 0; i < voicesRequired; i++) |
611 |
|
LaunchVoice(pEngineChannel, itNoteOffEventOnKeyList, i, true, false); //FIXME: for the moment we don't perform voice stealing for release triggered samples |
612 |
|
} |
613 |
pKey->ReleaseTrigger = false; |
pKey->ReleaseTrigger = false; |
614 |
} |
} |
615 |
} |
} |
623 |
*/ |
*/ |
624 |
void Engine::ProcessPitchbend(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itPitchbendEvent) { |
void Engine::ProcessPitchbend(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itPitchbendEvent) { |
625 |
pEngineChannel->Pitch = itPitchbendEvent->Param.Pitch.Pitch; // store current pitch value |
pEngineChannel->Pitch = itPitchbendEvent->Param.Pitch.Pitch; // store current pitch value |
626 |
itPitchbendEvent.moveToEndOf(pSynthesisEvents[Event::destination_vco]); |
itPitchbendEvent.moveToEndOf(pEngineChannel->pSynthesisEvents[Event::destination_vco]); |
627 |
} |
} |
628 |
|
|
629 |
/** |
/** |
682 |
} |
} |
683 |
} |
} |
684 |
else if (VoiceStealing) { |
else if (VoiceStealing) { |
685 |
// first, get total amount of required voices (dependant on amount of layers) |
|
686 |
::gig::Region* pRegion = pEngineChannel->pInstrument->GetRegion(itNoteOnEvent->Param.Note.Key); |
// try to steal one voice |
687 |
if (!pRegion) return Pool<Voice>::Iterator(); // nothing defined for this MIDI key, so no voice needed |
StealVoice(pEngineChannel, itNoteOnEvent); |
|
int voicesRequired = pRegion->Layers; |
|
|
|
|
|
// now steal the (remaining) amount of voices |
|
|
for (int i = iLayer; i < voicesRequired; i++) |
|
|
StealVoice(pEngineChannel, itNoteOnEvent); |
|
688 |
|
|
689 |
// put note-on event into voice-stealing queue, so it will be reprocessed after killed voice died |
// put note-on event into voice-stealing queue, so it will be reprocessed after killed voice died |
690 |
RTList<Event>::Iterator itStealEvent = pVoiceStealingQueue->allocAppend(); |
RTList<Event>::Iterator itStealEvent = pVoiceStealingQueue->allocAppend(); |
709 |
* @param itNoteOnEvent - key, velocity and time stamp of the event |
* @param itNoteOnEvent - key, velocity and time stamp of the event |
710 |
*/ |
*/ |
711 |
void Engine::StealVoice(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itNoteOnEvent) { |
void Engine::StealVoice(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itNoteOnEvent) { |
712 |
|
if (!VoiceTheftsLeft) { |
713 |
|
dmsg(1,("Max. voice thefts per audio fragment reached (you may raise MAX_AUDIO_VOICES).\n")); |
714 |
|
return; |
715 |
|
} |
716 |
if (!pEventPool->poolIsEmpty()) { |
if (!pEventPool->poolIsEmpty()) { |
717 |
|
|
718 |
RTList<uint>::Iterator iuiOldestKey; |
RTList<Voice>::Iterator itSelectedVoice; |
|
RTList<Voice>::Iterator itOldestVoice; |
|
719 |
|
|
720 |
// Select one voice for voice stealing |
// Select one voice for voice stealing |
721 |
switch (VOICE_STEAL_ALGORITHM) { |
switch (VOICE_STEAL_ALGORITHM) { |
724 |
// voice should be spawned, if there is no voice on that |
// voice should be spawned, if there is no voice on that |
725 |
// key, or no voice left to kill there, then procceed with |
// key, or no voice left to kill there, then procceed with |
726 |
// 'oldestkey' algorithm |
// 'oldestkey' algorithm |
727 |
case voice_steal_algo_keymask: { |
case voice_steal_algo_oldestvoiceonkey: { |
728 |
midi_key_info_t* pOldestKey = &pEngineChannel->pMIDIKeyInfo[itNoteOnEvent->Param.Note.Key]; |
#if 0 // FIXME: broken |
729 |
if (pEngineChannel->itLastStolenVoice) { |
midi_key_info_t* pSelectedKey = &pEngineChannel->pMIDIKeyInfo[itNoteOnEvent->Param.Note.Key]; |
730 |
itOldestVoice = pEngineChannel->itLastStolenVoice; |
if (this->itLastStolenVoice) { |
731 |
++itOldestVoice; |
itSelectedVoice = this->itLastStolenVoice; |
732 |
|
++itSelectedVoice; |
733 |
} |
} |
734 |
else { // no voice stolen in this audio fragment cycle yet |
else { // no voice stolen in this audio fragment cycle yet |
735 |
itOldestVoice = pOldestKey->pActiveVoices->first(); |
itSelectedVoice = pSelectedKey->pActiveVoices->first(); |
736 |
} |
} |
737 |
if (itOldestVoice) { |
if (itSelectedVoice) { |
738 |
iuiOldestKey = pOldestKey->itSelf; |
iuiSelectedKey = pSelectedKey->itSelf; |
739 |
break; // selection succeeded |
break; // selection succeeded |
740 |
} |
} |
741 |
|
#endif |
742 |
} // no break - intentional ! |
} // no break - intentional ! |
743 |
|
|
744 |
// try to pick the oldest voice on the oldest active key |
// try to pick the oldest voice on the oldest active key |
745 |
// (caution: must stay after 'keymask' algorithm !) |
// (caution: must stay after 'oldestvoiceonkey' algorithm !) |
746 |
case voice_steal_algo_oldestkey: { |
case voice_steal_algo_oldestkey: { |
747 |
if (pEngineChannel->itLastStolenVoice) { |
if (this->itLastStolenVoice) { |
748 |
midi_key_info_t* pOldestKey = &pEngineChannel->pMIDIKeyInfo[*pEngineChannel->iuiLastStolenKey]; |
itSelectedVoice = this->itLastStolenVoice; |
749 |
itOldestVoice = pEngineChannel->itLastStolenVoice; |
++itSelectedVoice; |
750 |
++itOldestVoice; |
if (itSelectedVoice) break; // selection succeeded |
751 |
if (!itOldestVoice) { |
RTList<uint>::Iterator iuiSelectedKey = this->iuiLastStolenKey; |
752 |
iuiOldestKey = pEngineChannel->iuiLastStolenKey; |
++iuiSelectedKey; |
753 |
++iuiOldestKey; |
if (iuiSelectedKey) { |
754 |
if (iuiOldestKey) { |
this->iuiLastStolenKey = iuiSelectedKey; |
755 |
midi_key_info_t* pOldestKey = &pEngineChannel->pMIDIKeyInfo[*iuiOldestKey]; |
midi_key_info_t* pSelectedKey = &pEngineChannel->pMIDIKeyInfo[*iuiSelectedKey]; |
756 |
itOldestVoice = pOldestKey->pActiveVoices->first(); |
itSelectedVoice = pSelectedKey->pActiveVoices->first(); |
757 |
} |
break; // selection succeeded |
|
else { |
|
|
dmsg(1,("gig::Engine: Warning, too less voices, even for voice stealing! - Better recompile with higher MAX_AUDIO_VOICES.\n")); |
|
|
return; |
|
|
} |
|
758 |
} |
} |
|
else iuiOldestKey = pEngineChannel->iuiLastStolenKey; |
|
|
} |
|
|
else { // no voice stolen in this audio fragment cycle yet |
|
|
iuiOldestKey = pEngineChannel->pActiveKeys->first(); |
|
|
midi_key_info_t* pOldestKey = &pEngineChannel->pMIDIKeyInfo[*iuiOldestKey]; |
|
|
itOldestVoice = pOldestKey->pActiveVoices->first(); |
|
759 |
} |
} |
760 |
break; |
break; |
761 |
} |
} |
768 |
} |
} |
769 |
} |
} |
770 |
|
|
771 |
|
// steal oldest voice on the oldest key from this or any other engine channel |
772 |
|
if (!itSelectedVoice) { |
773 |
|
EngineChannel* pSelectedChannel = (pLastStolenChannel) ? pLastStolenChannel : pEngineChannel; |
774 |
|
int iChannelIndex = pSelectedChannel->iEngineIndexSelf; |
775 |
|
while (true) { |
776 |
|
RTList<uint>::Iterator iuiSelectedKey = pSelectedChannel->pActiveKeys->first(); |
777 |
|
if (iuiSelectedKey) { |
778 |
|
midi_key_info_t* pSelectedKey = &pSelectedChannel->pMIDIKeyInfo[*iuiSelectedKey]; |
779 |
|
itSelectedVoice = pSelectedKey->pActiveVoices->first(); |
780 |
|
iuiLastStolenKey = iuiSelectedKey; |
781 |
|
pLastStolenChannel = pSelectedChannel; |
782 |
|
break; // selection succeeded |
783 |
|
} |
784 |
|
iChannelIndex = (iChannelIndex + 1) % engineChannels.size(); |
785 |
|
pSelectedChannel = engineChannels[iChannelIndex]; |
786 |
|
} |
787 |
|
} |
788 |
|
|
789 |
//FIXME: can be removed, just a sanity check for debugging |
//FIXME: can be removed, just a sanity check for debugging |
790 |
if (!itOldestVoice->IsActive()) dmsg(1,("gig::Engine: ERROR, tried to steal a voice which was not active !!!\n")); |
if (!itSelectedVoice->IsActive()) dmsg(1,("gig::Engine: ERROR, tried to steal a voice which was not active !!!\n")); |
791 |
|
|
792 |
// now kill the selected voice |
// now kill the selected voice |
793 |
itOldestVoice->Kill(itNoteOnEvent); |
itSelectedVoice->Kill(itNoteOnEvent); |
794 |
// remember which voice on which key we stole, so we can simply proceed for the next voice stealing |
|
795 |
pEngineChannel->itLastStolenVoice = itOldestVoice; |
// remember which voice we stole, so we can simply proceed for the next voice stealing |
796 |
pEngineChannel->iuiLastStolenKey = iuiOldestKey; |
itLastStolenVoice = itSelectedVoice; |
797 |
|
|
798 |
|
--VoiceTheftsLeft; |
799 |
} |
} |
800 |
else dmsg(1,("Event pool emtpy!\n")); |
else dmsg(1,("Event pool emtpy!\n")); |
801 |
} |
} |
857 |
dmsg(4,("Engine::ContinuousController cc=%d v=%d\n", itControlChangeEvent->Param.CC.Controller, itControlChangeEvent->Param.CC.Value)); |
dmsg(4,("Engine::ContinuousController cc=%d v=%d\n", itControlChangeEvent->Param.CC.Controller, itControlChangeEvent->Param.CC.Value)); |
858 |
|
|
859 |
switch (itControlChangeEvent->Param.CC.Controller) { |
switch (itControlChangeEvent->Param.CC.Controller) { |
860 |
case 64: { |
case 7: { // volume |
861 |
|
//TODO: not sample accurate yet |
862 |
|
pEngineChannel->GlobalVolume = (float) itControlChangeEvent->Param.CC.Value / 127.0f; |
863 |
|
break; |
864 |
|
} |
865 |
|
case 10: { // panpot |
866 |
|
//TODO: not sample accurate yet |
867 |
|
const int pan = (int) itControlChangeEvent->Param.CC.Value - 64; |
868 |
|
pEngineChannel->GlobalPanLeft = 1.0f - float(RTMath::Max(pan, 0)) / 63.0f; |
869 |
|
pEngineChannel->GlobalPanRight = 1.0f - float(RTMath::Min(pan, 0)) / -64.0f; |
870 |
|
break; |
871 |
|
} |
872 |
|
case 64: { // sustain |
873 |
if (itControlChangeEvent->Param.CC.Value >= 64 && !pEngineChannel->SustainPedal) { |
if (itControlChangeEvent->Param.CC.Value >= 64 && !pEngineChannel->SustainPedal) { |
874 |
dmsg(4,("PEDAL DOWN\n")); |
dmsg(4,("PEDAL DOWN\n")); |
875 |
pEngineChannel->SustainPedal = true; |
pEngineChannel->SustainPedal = true; |
916 |
pEngineChannel->ControllerTable[itControlChangeEvent->Param.CC.Controller] = itControlChangeEvent->Param.CC.Value; |
pEngineChannel->ControllerTable[itControlChangeEvent->Param.CC.Controller] = itControlChangeEvent->Param.CC.Value; |
917 |
|
|
918 |
// 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 |
919 |
itControlChangeEvent.moveToEndOf(pCCEvents); |
itControlChangeEvent.moveToEndOf(pEngineChannel->pCCEvents); |
920 |
} |
} |
921 |
|
|
922 |
/** |
/** |
1015 |
m[i+2] = val; |
m[i+2] = val; |
1016 |
m[i+3] = val; |
m[i+3] = val; |
1017 |
} |
} |
1018 |
} |
} |
1019 |
|
|
1020 |
uint Engine::VoiceCount() { |
uint Engine::VoiceCount() { |
1021 |
return ActiveVoiceCount; |
return ActiveVoiceCount; |
1054 |
} |
} |
1055 |
|
|
1056 |
String Engine::Version() { |
String Engine::Version() { |
1057 |
String s = "$Revision: 1.28 $"; |
String s = "$Revision: 1.32 $"; |
1058 |
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 |
1059 |
} |
} |
1060 |
|
|