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 |
} |
} |
96 |
else dmsg(4,("This gig::Engine has now %d EngineChannels.\n",pEngine->engineChannels.size())); |
else dmsg(4,("This gig::Engine has now %d EngineChannels.\n",pEngine->engineChannels.size())); |
97 |
} |
} |
98 |
|
|
99 |
|
/** |
100 |
|
* Constructor |
101 |
|
*/ |
102 |
Engine::Engine() { |
Engine::Engine() { |
103 |
pAudioOutputDevice = NULL; |
pAudioOutputDevice = NULL; |
104 |
pDiskThread = NULL; |
pDiskThread = NULL; |
105 |
pEventGenerator = NULL; |
pEventGenerator = NULL; |
106 |
pSysexBuffer = new RingBuffer<uint8_t>(SYSEX_BUFFER_SIZE, 0); |
pSysexBuffer = new RingBuffer<uint8_t>(CONFIG_SYSEX_BUFFER_SIZE, 0); |
107 |
pEventQueue = new RingBuffer<Event>(MAX_EVENTS_PER_FRAGMENT, 0); |
pEventQueue = new RingBuffer<Event>(CONFIG_MAX_EVENTS_PER_FRAGMENT, 0); |
108 |
pEventPool = new Pool<Event>(MAX_EVENTS_PER_FRAGMENT); |
pEventPool = new Pool<Event>(CONFIG_MAX_EVENTS_PER_FRAGMENT); |
109 |
pVoicePool = new Pool<Voice>(MAX_AUDIO_VOICES); |
pVoicePool = new Pool<Voice>(CONFIG_MAX_VOICES); |
110 |
pVoiceStealingQueue = new RTList<Event>(pEventPool); |
pVoiceStealingQueue = new RTList<Event>(pEventPool); |
111 |
pEvents = new RTList<Event>(pEventPool); |
pGlobalEvents = new RTList<Event>(pEventPool); |
|
pCCEvents = new RTList<Event>(pEventPool); |
|
|
|
|
|
for (uint i = 0; i < Event::destination_count; i++) { |
|
|
pSynthesisEvents[i] = new RTList<Event>(pEventPool); |
|
|
} |
|
112 |
for (RTList<Voice>::Iterator iterVoice = pVoicePool->allocAppend(); iterVoice == pVoicePool->last(); iterVoice = pVoicePool->allocAppend()) { |
for (RTList<Voice>::Iterator iterVoice = pVoicePool->allocAppend(); iterVoice == pVoicePool->last(); iterVoice = pVoicePool->allocAppend()) { |
113 |
iterVoice->SetEngine(this); |
iterVoice->SetEngine(this); |
114 |
} |
} |
119 |
pMainFilterParameters = NULL; |
pMainFilterParameters = NULL; |
120 |
|
|
121 |
ResetInternal(); |
ResetInternal(); |
122 |
|
ResetScaleTuning(); |
123 |
} |
} |
124 |
|
|
125 |
|
/** |
126 |
|
* Destructor |
127 |
|
*/ |
128 |
Engine::~Engine() { |
Engine::~Engine() { |
129 |
if (pDiskThread) { |
if (pDiskThread) { |
130 |
dmsg(1,("Stopping disk thread...")); |
dmsg(1,("Stopping disk thread...")); |
132 |
delete pDiskThread; |
delete pDiskThread; |
133 |
dmsg(1,("OK\n")); |
dmsg(1,("OK\n")); |
134 |
} |
} |
|
for (uint i = 0; i < Event::destination_count; i++) { |
|
|
if (pSynthesisEvents[i]) delete pSynthesisEvents[i]; |
|
|
} |
|
|
if (pEvents) delete pEvents; |
|
|
if (pCCEvents) delete pCCEvents; |
|
135 |
if (pEventQueue) delete pEventQueue; |
if (pEventQueue) delete pEventQueue; |
136 |
if (pEventPool) delete pEventPool; |
if (pEventPool) delete pEventPool; |
137 |
if (pVoicePool) { |
if (pVoicePool) { |
172 |
void Engine::Reset() { |
void Engine::Reset() { |
173 |
DisableAndLock(); |
DisableAndLock(); |
174 |
ResetInternal(); |
ResetInternal(); |
175 |
|
ResetScaleTuning(); |
176 |
Enable(); |
Enable(); |
177 |
} |
} |
178 |
|
|
186 |
|
|
187 |
// reset voice stealing parameters |
// reset voice stealing parameters |
188 |
pVoiceStealingQueue->clear(); |
pVoiceStealingQueue->clear(); |
189 |
|
itLastStolenVoice = RTList<Voice>::Iterator(); |
190 |
// reset to normal chromatic scale (means equal temper) |
itLastStolenVoiceGlobally = RTList<Voice>::Iterator(); |
191 |
memset(&ScaleTuning[0], 0x00, 12); |
iuiLastStolenKey = RTList<uint>::Iterator(); |
192 |
|
iuiLastStolenKeyGlobally = RTList<uint>::Iterator(); |
193 |
|
pLastStolenChannel = NULL; |
194 |
|
|
195 |
// reset all voices |
// reset all voices |
196 |
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()) { |
203 |
|
|
204 |
// delete all input events |
// delete all input events |
205 |
pEventQueue->init(); |
pEventQueue->init(); |
206 |
} |
} |
207 |
|
|
208 |
|
/** |
209 |
|
* Reset to normal, chromatic scale (means equal tempered). |
210 |
|
*/ |
211 |
|
void Engine::ResetScaleTuning() { |
212 |
|
memset(&ScaleTuning[0], 0x00, 12); |
213 |
|
} |
214 |
|
|
215 |
|
/** |
216 |
|
* Connect this engine instance with the given audio output device. |
217 |
|
* This method will be called when an Engine instance is created. |
218 |
|
* All of the engine's data structures which are dependant to the used |
219 |
|
* audio output device / driver will be (re)allocated and / or |
220 |
|
* adjusted appropriately. |
221 |
|
* |
222 |
|
* @param pAudioOut - audio output device to connect to |
223 |
|
*/ |
224 |
void Engine::Connect(AudioOutputDevice* pAudioOut) { |
void Engine::Connect(AudioOutputDevice* pAudioOut) { |
225 |
pAudioOutputDevice = pAudioOut; |
pAudioOutputDevice = pAudioOut; |
226 |
|
|
234 |
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(); |
235 |
throw LinuxSamplerException(msg); |
throw LinuxSamplerException(msg); |
236 |
} |
} |
237 |
|
|
238 |
this->MaxSamplesPerCycle = pAudioOutputDevice->MaxSamplesPerCycle(); |
this->MaxSamplesPerCycle = pAudioOutputDevice->MaxSamplesPerCycle(); |
239 |
this->SampleRate = pAudioOutputDevice->SampleRate(); |
this->SampleRate = pAudioOutputDevice->SampleRate(); |
240 |
|
|
241 |
// FIXME: audio drivers with varying fragment sizes might be a problem here |
// FIXME: audio drivers with varying fragment sizes might be a problem here |
242 |
MaxFadeOutPos = MaxSamplesPerCycle - int(double(SampleRate) * EG_MIN_RELEASE_TIME) - 1; |
MaxFadeOutPos = MaxSamplesPerCycle - int(double(SampleRate) * CONFIG_EG_MIN_RELEASE_TIME) - 1; |
243 |
if (MaxFadeOutPos < 0) |
if (MaxFadeOutPos < 0) |
244 |
throw LinuxSamplerException("EG_MIN_RELEASE_TIME in EGADSR.h too big for current audio fragment size / sampling rate!"); |
throw LinuxSamplerException("CONFIG_EG_MIN_RELEASE_TIME too big for current audio fragment size / sampling rate!"); |
245 |
|
|
246 |
// (re)create disk thread |
// (re)create disk thread |
247 |
if (this->pDiskThread) { |
if (this->pDiskThread) { |
250 |
delete this->pDiskThread; |
delete this->pDiskThread; |
251 |
dmsg(1,("OK\n")); |
dmsg(1,("OK\n")); |
252 |
} |
} |
253 |
this->pDiskThread = new DiskThread(((pAudioOut->MaxSamplesPerCycle() << MAX_PITCH) << 1) + 6); //FIXME: assuming stereo |
this->pDiskThread = new DiskThread(((pAudioOut->MaxSamplesPerCycle() << CONFIG_MAX_PITCH) << 1) + 6); //FIXME: assuming stereo |
254 |
if (!pDiskThread) { |
if (!pDiskThread) { |
255 |
dmsg(0,("gig::Engine new diskthread = NULL\n")); |
dmsg(0,("gig::Engine new diskthread = NULL\n")); |
256 |
exit(EXIT_FAILURE); |
exit(EXIT_FAILURE); |
295 |
} |
} |
296 |
} |
} |
297 |
|
|
298 |
|
/** |
299 |
|
* Clear all engine global event lists. |
300 |
|
*/ |
301 |
void Engine::ClearEventLists() { |
void Engine::ClearEventLists() { |
302 |
pEvents->clear(); |
pGlobalEvents->clear(); |
|
pCCEvents->clear(); |
|
|
for (uint i = 0; i < Event::destination_count; i++) { |
|
|
pSynthesisEvents[i]->clear(); |
|
|
} |
|
303 |
} |
} |
304 |
|
|
305 |
/** |
/** |
306 |
* 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 |
307 |
* 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 |
308 |
* cycle (that is each RenderAudio() call) to get all events which have |
* each audio cycle (that is each RenderAudio() call) to distinguish |
309 |
* to be processed in the current audio cycle. Each EngineChannel has |
* all global events which have to be processed in the current audio |
310 |
* it's own input event queue for the common channel specific events |
* cycle. These events are usually just SysEx messages. Every |
311 |
* (like NoteOn, NoteOff and ControlChange events). Beside that, the |
* EngineChannel has it's own input event queue buffer and event list |
312 |
* engine also has a input event queue for global events (usually SysEx |
* to handle common events like NoteOn, NoteOff and ControlChange |
313 |
* message). |
* events. |
314 |
* |
* |
315 |
* @param pEventQueue - input event buffer to read from |
* @param Samples - number of sample points to be processed in the |
316 |
* @param Samples - number of sample points to be processed in the |
* current audio cycle |
|
* current audio cycle |
|
317 |
*/ |
*/ |
318 |
void Engine::ImportEvents(RingBuffer<Event>* pEventQueue, uint Samples) { |
void Engine::ImportEvents(uint Samples) { |
319 |
RingBuffer<Event>::NonVolatileReader eventQueueReader = pEventQueue->get_non_volatile_reader(); |
RingBuffer<Event>::NonVolatileReader eventQueueReader = pEventQueue->get_non_volatile_reader(); |
320 |
Event* pEvent; |
Event* pEvent; |
321 |
while (true) { |
while (true) { |
329 |
break; |
break; |
330 |
} |
} |
331 |
// copy event to internal event list |
// copy event to internal event list |
332 |
if (pEvents->poolIsEmpty()) { |
if (pGlobalEvents->poolIsEmpty()) { |
333 |
dmsg(1,("Event pool emtpy!\n")); |
dmsg(1,("Event pool emtpy!\n")); |
334 |
break; |
break; |
335 |
} |
} |
336 |
*pEvents->allocAppend() = *pEvent; |
*pGlobalEvents->allocAppend() = *pEvent; |
337 |
} |
} |
338 |
eventQueueReader.free(); // free all copied events from input queue |
eventQueueReader.free(); // free all copied events from input queue |
339 |
} |
} |
340 |
|
|
341 |
/** |
/** |
342 |
* 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 |
360 |
// 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) |
361 |
pEventGenerator->UpdateFragmentTime(Samples); |
pEventGenerator->UpdateFragmentTime(Samples); |
362 |
|
|
363 |
// empty the engine's event lists for the new fragment |
// We only allow a maximum of CONFIG_MAX_VOICES voices to be spawned |
364 |
ClearEventLists(); |
// in each audio fragment. All subsequent request for spawning new |
365 |
|
// voices in the same audio fragment will be ignored. |
366 |
|
VoiceSpawnsLeft = CONFIG_MAX_VOICES; |
367 |
|
|
368 |
// 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 |
369 |
// (these are usually just SysEx messages) |
// (these are usually just SysEx messages) |
370 |
ImportEvents(this->pEventQueue, Samples); |
ImportEvents(Samples); |
371 |
|
|
372 |
// process engine global events (these are currently only MIDI System Exclusive messages) |
// process engine global events (these are currently only MIDI System Exclusive messages) |
373 |
{ |
{ |
374 |
RTList<Event>::Iterator itEvent = pEvents->first(); |
RTList<Event>::Iterator itEvent = pGlobalEvents->first(); |
375 |
RTList<Event>::Iterator end = pEvents->end(); |
RTList<Event>::Iterator end = pGlobalEvents->end(); |
376 |
for (; itEvent != end; ++itEvent) { |
for (; itEvent != end; ++itEvent) { |
377 |
switch (itEvent->Type) { |
switch (itEvent->Type) { |
378 |
case Event::type_sysex: |
case Event::type_sysex: |
386 |
// reset internal voice counter (just for statistic of active voices) |
// reset internal voice counter (just for statistic of active voices) |
387 |
ActiveVoiceCountTemp = 0; |
ActiveVoiceCountTemp = 0; |
388 |
|
|
389 |
// render audio for all engine channels |
// handle events on all engine channels |
390 |
// 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 |
for (int i = 0; i < engineChannels.size(); i++) { |
391 |
{ |
if (!engineChannels[i]->pInstrument) continue; // ignore if no instrument loaded |
392 |
std::list<EngineChannel*>::iterator itChannel = engineChannels.begin(); |
ProcessEvents(engineChannels[i], Samples); |
393 |
std::list<EngineChannel*>::iterator end = engineChannels.end(); |
} |
394 |
for (; itChannel != end; itChannel++) { |
|
395 |
if (!(*itChannel)->pInstrument) continue; // ignore if no instrument loaded |
// render all 'normal', active voices on all engine channels |
396 |
RenderAudio(*itChannel, Samples); |
for (int i = 0; i < engineChannels.size(); i++) { |
397 |
} |
if (!engineChannels[i]->pInstrument) continue; // ignore if no instrument loaded |
398 |
|
RenderActiveVoices(engineChannels[i], Samples); |
399 |
|
} |
400 |
|
|
401 |
|
// now that all ordinary voices on ALL engine channels are rendered, render new stolen voices |
402 |
|
RenderStolenVoices(Samples); |
403 |
|
|
404 |
|
// handle cleanup on all engine channels for the next audio fragment |
405 |
|
for (int i = 0; i < engineChannels.size(); i++) { |
406 |
|
if (!engineChannels[i]->pInstrument) continue; // ignore if no instrument loaded |
407 |
|
PostProcess(engineChannels[i]); |
408 |
} |
} |
409 |
|
|
410 |
|
|
411 |
|
// empty the engine's event list for the next audio fragment |
412 |
|
ClearEventLists(); |
413 |
|
|
414 |
|
// reset voice stealing for the next audio fragment |
415 |
|
pVoiceStealingQueue->clear(); |
416 |
|
|
417 |
// just some statistics about this engine instance |
// just some statistics about this engine instance |
418 |
ActiveVoiceCount = ActiveVoiceCountTemp; |
ActiveVoiceCount = ActiveVoiceCountTemp; |
419 |
if (ActiveVoiceCount > ActiveVoiceCountMax) ActiveVoiceCountMax = ActiveVoiceCount; |
if (ActiveVoiceCount > ActiveVoiceCountMax) ActiveVoiceCountMax = ActiveVoiceCount; |
420 |
|
|
421 |
|
FrameTime += Samples; |
422 |
|
|
423 |
return 0; |
return 0; |
424 |
} |
} |
425 |
|
|
426 |
void Engine::RenderAudio(EngineChannel* pEngineChannel, uint Samples) { |
/** |
427 |
// empty the engine's event lists for the new fragment |
* Dispatch and handle all events in this audio fragment for the given |
428 |
ClearEventLists(); |
* engine channel. |
429 |
// empty the engine channel's, MIDI key specific event lists |
* |
430 |
{ |
* @param pEngineChannel - engine channel on which events should be |
431 |
RTList<uint>::Iterator iuiKey = pEngineChannel->pActiveKeys->first(); |
* processed |
432 |
RTList<uint>::Iterator end = pEngineChannel->pActiveKeys->end(); |
* @param Samples - amount of sample points to be processed in |
433 |
for(; iuiKey != end; ++iuiKey) { |
* this audio fragment cycle |
434 |
pEngineChannel->pMIDIKeyInfo[*iuiKey].pEvents->clear(); // free all events on the key |
*/ |
435 |
} |
void Engine::ProcessEvents(EngineChannel* pEngineChannel, uint Samples) { |
|
} |
|
|
|
|
|
|
|
436 |
// 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 |
437 |
// (these are the common events like NoteOn, NoteOff, ControlChange, etc.) |
// (these are the common events like NoteOn, NoteOff, ControlChange, etc.) |
438 |
ImportEvents(pEngineChannel->pEventQueue, Samples); |
pEngineChannel->ImportEvents(Samples); |
|
|
|
439 |
|
|
440 |
// process events |
// process events |
441 |
{ |
{ |
442 |
RTList<Event>::Iterator itEvent = pEvents->first(); |
RTList<Event>::Iterator itEvent = pEngineChannel->pEvents->first(); |
443 |
RTList<Event>::Iterator end = pEvents->end(); |
RTList<Event>::Iterator end = pEngineChannel->pEvents->end(); |
444 |
for (; itEvent != end; ++itEvent) { |
for (; itEvent != end; ++itEvent) { |
445 |
switch (itEvent->Type) { |
switch (itEvent->Type) { |
446 |
case Event::type_note_on: |
case Event::type_note_on: |
463 |
} |
} |
464 |
} |
} |
465 |
|
|
466 |
|
// reset voice stealing for the next engine channel (or next audio fragment) |
467 |
|
itLastStolenVoice = RTList<Voice>::Iterator(); |
468 |
|
itLastStolenVoiceGlobally = RTList<Voice>::Iterator(); |
469 |
|
iuiLastStolenKey = RTList<uint>::Iterator(); |
470 |
|
iuiLastStolenKeyGlobally = RTList<uint>::Iterator(); |
471 |
|
pLastStolenChannel = NULL; |
472 |
|
} |
473 |
|
|
474 |
// render audio from all active voices |
/** |
475 |
{ |
* Render all 'normal' voices (that is voices which were not stolen in |
476 |
RTList<uint>::Iterator iuiKey = pEngineChannel->pActiveKeys->first(); |
* this fragment) on the given engine channel. |
477 |
RTList<uint>::Iterator end = pEngineChannel->pActiveKeys->end(); |
* |
478 |
while (iuiKey != end) { // iterate through all active keys |
* @param pEngineChannel - engine channel on which audio should be |
479 |
midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[*iuiKey]; |
* rendered |
480 |
++iuiKey; |
* @param Samples - amount of sample points to be rendered in |
481 |
|
* this audio fragment cycle |
482 |
RTList<Voice>::Iterator itVoice = pKey->pActiveVoices->first(); |
*/ |
483 |
RTList<Voice>::Iterator itVoicesEnd = pKey->pActiveVoices->end(); |
void Engine::RenderActiveVoices(EngineChannel* pEngineChannel, uint Samples) { |
484 |
for (; itVoice != itVoicesEnd; ++itVoice) { // iterate through all voices on this key |
RTList<uint>::Iterator iuiKey = pEngineChannel->pActiveKeys->first(); |
485 |
// now render current voice |
RTList<uint>::Iterator end = pEngineChannel->pActiveKeys->end(); |
486 |
itVoice->Render(Samples); |
while (iuiKey != end) { // iterate through all active keys |
487 |
if (itVoice->IsActive()) ActiveVoiceCountTemp++; // still active |
midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[*iuiKey]; |
488 |
else { // voice reached end, is now inactive |
++iuiKey; |
489 |
FreeVoice(pEngineChannel, itVoice); // remove voice from the list of active voices |
|
490 |
} |
RTList<Voice>::Iterator itVoice = pKey->pActiveVoices->first(); |
491 |
|
RTList<Voice>::Iterator itVoicesEnd = pKey->pActiveVoices->end(); |
492 |
|
for (; itVoice != itVoicesEnd; ++itVoice) { // iterate through all voices on this key |
493 |
|
// now render current voice |
494 |
|
itVoice->Render(Samples); |
495 |
|
if (itVoice->IsActive()) ActiveVoiceCountTemp++; // still active |
496 |
|
else { // voice reached end, is now inactive |
497 |
|
FreeVoice(pEngineChannel, itVoice); // remove voice from the list of active voices |
498 |
} |
} |
499 |
} |
} |
500 |
} |
} |
501 |
|
} |
502 |
|
|
503 |
|
/** |
504 |
// now render all postponed voices from voice stealing |
* Render all stolen voices (only voices which were stolen in this |
505 |
{ |
* fragment) on the given engine channel. Stolen voices are rendered |
506 |
RTList<Event>::Iterator itVoiceStealEvent = pVoiceStealingQueue->first(); |
* after all normal voices have been rendered; this is needed to render |
507 |
RTList<Event>::Iterator end = pVoiceStealingQueue->end(); |
* audio of those voices which were selected for voice stealing until |
508 |
for (; itVoiceStealEvent != end; ++itVoiceStealEvent) { |
* the point were the stealing (that is the take over of the voice) |
509 |
Pool<Voice>::Iterator itNewVoice = |
* actually happened. |
510 |
LaunchVoice(pEngineChannel, itVoiceStealEvent, itVoiceStealEvent->Param.Note.Layer, itVoiceStealEvent->Param.Note.ReleaseTrigger, false); |
* |
511 |
if (itNewVoice) { |
* @param pEngineChannel - engine channel on which audio should be |
512 |
for (; itNewVoice; itNewVoice = itNewVoice->itChildVoice) { |
* rendered |
513 |
itNewVoice->Render(Samples); |
* @param Samples - amount of sample points to be rendered in |
514 |
if (itNewVoice->IsActive()) ActiveVoiceCountTemp++; // still active |
* this audio fragment cycle |
515 |
else { // voice reached end, is now inactive |
*/ |
516 |
FreeVoice(pEngineChannel, itNewVoice); // remove voice from the list of active voices |
void Engine::RenderStolenVoices(uint Samples) { |
517 |
} |
RTList<Event>::Iterator itVoiceStealEvent = pVoiceStealingQueue->first(); |
518 |
} |
RTList<Event>::Iterator end = pVoiceStealingQueue->end(); |
519 |
|
for (; itVoiceStealEvent != end; ++itVoiceStealEvent) { |
520 |
|
EngineChannel* pEngineChannel = (EngineChannel*) itVoiceStealEvent->pEngineChannel; |
521 |
|
Pool<Voice>::Iterator itNewVoice = |
522 |
|
LaunchVoice(pEngineChannel, itVoiceStealEvent, itVoiceStealEvent->Param.Note.Layer, itVoiceStealEvent->Param.Note.ReleaseTrigger, false, false); |
523 |
|
if (itNewVoice) { |
524 |
|
itNewVoice->Render(Samples); |
525 |
|
if (itNewVoice->IsActive()) ActiveVoiceCountTemp++; // still active |
526 |
|
else { // voice reached end, is now inactive |
527 |
|
FreeVoice(pEngineChannel, itNewVoice); // remove voice from the list of active voices |
528 |
} |
} |
|
else dmsg(1,("gig::Engine: ERROR, voice stealing didn't work out!\n")); |
|
529 |
} |
} |
530 |
|
else dmsg(1,("gig::Engine: ERROR, voice stealing didn't work out!\n")); |
531 |
|
|
532 |
|
// we need to clear the key's event list explicitly here in case key was never active |
533 |
|
midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[itVoiceStealEvent->Param.Note.Key]; |
534 |
|
pKey->VoiceTheftsQueued--; |
535 |
|
if (!pKey->Active && !pKey->VoiceTheftsQueued) pKey->pEvents->clear(); |
536 |
} |
} |
537 |
// reset voice stealing for the new fragment |
} |
|
pVoiceStealingQueue->clear(); |
|
|
pEngineChannel->itLastStolenVoice = RTList<Voice>::Iterator(); |
|
|
pEngineChannel->iuiLastStolenKey = RTList<uint>::Iterator(); |
|
|
|
|
538 |
|
|
539 |
|
/** |
540 |
|
* Free all keys which have turned inactive in this audio fragment, from |
541 |
|
* the list of active keys and clear all event lists on that engine |
542 |
|
* channel. |
543 |
|
* |
544 |
|
* @param pEngineChannel - engine channel to cleanup |
545 |
|
*/ |
546 |
|
void Engine::PostProcess(EngineChannel* pEngineChannel) { |
547 |
// free all keys which have no active voices left |
// free all keys which have no active voices left |
548 |
{ |
{ |
549 |
RTList<uint>::Iterator iuiKey = pEngineChannel->pActiveKeys->first(); |
RTList<uint>::Iterator iuiKey = pEngineChannel->pActiveKeys->first(); |
552 |
midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[*iuiKey]; |
midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[*iuiKey]; |
553 |
++iuiKey; |
++iuiKey; |
554 |
if (pKey->pActiveVoices->isEmpty()) FreeKey(pEngineChannel, pKey); |
if (pKey->pActiveVoices->isEmpty()) FreeKey(pEngineChannel, pKey); |
555 |
#if DEVMODE |
#if CONFIG_DEVMODE |
556 |
else { // FIXME: should be removed before the final release (purpose: just a sanity check for debugging) |
else { // just a sanity check for debugging |
557 |
RTList<Voice>::Iterator itVoice = pKey->pActiveVoices->first(); |
RTList<Voice>::Iterator itVoice = pKey->pActiveVoices->first(); |
558 |
RTList<Voice>::Iterator itVoicesEnd = pKey->pActiveVoices->end(); |
RTList<Voice>::Iterator itVoicesEnd = pKey->pActiveVoices->end(); |
559 |
for (; itVoice != itVoicesEnd; ++itVoice) { // iterate through all voices on this key |
for (; itVoice != itVoicesEnd; ++itVoice) { // iterate through all voices on this key |
562 |
} |
} |
563 |
} |
} |
564 |
} |
} |
565 |
#endif // DEVMODE |
#endif // CONFIG_DEVMODE |
566 |
} |
} |
567 |
} |
} |
568 |
|
|
569 |
|
// empty the engine channel's own event lists |
570 |
|
pEngineChannel->ClearEventLists(); |
571 |
} |
} |
572 |
|
|
573 |
/** |
/** |
597 |
// finally place sysex event into input event queue |
// finally place sysex event into input event queue |
598 |
pEventQueue->push(&event); |
pEventQueue->push(&event); |
599 |
} |
} |
600 |
else dmsg(1,("Engine: Sysex message too large (%d byte) for input buffer (%d byte)!",Size,SYSEX_BUFFER_SIZE)); |
else dmsg(1,("Engine: Sysex message too large (%d byte) for input buffer (%d byte)!",Size,CONFIG_SYSEX_BUFFER_SIZE)); |
601 |
} |
} |
602 |
else dmsg(1,("Engine: Input event queue full!")); |
else dmsg(1,("Engine: Input event queue full!")); |
603 |
} |
} |
609 |
* @param itNoteOnEvent - key, velocity and time stamp of the event |
* @param itNoteOnEvent - key, velocity and time stamp of the event |
610 |
*/ |
*/ |
611 |
void Engine::ProcessNoteOn(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itNoteOnEvent) { |
void Engine::ProcessNoteOn(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itNoteOnEvent) { |
612 |
|
|
613 |
const int key = itNoteOnEvent->Param.Note.Key; |
const int key = itNoteOnEvent->Param.Note.Key; |
614 |
|
|
615 |
// Change key dimension value if key is in keyswitching area |
// Change key dimension value if key is in keyswitching area |
623 |
midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[key]; |
midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[key]; |
624 |
|
|
625 |
pKey->KeyPressed = true; // the MIDI key was now pressed down |
pKey->KeyPressed = true; // the MIDI key was now pressed down |
626 |
|
pKey->Velocity = itNoteOnEvent->Param.Note.Velocity; |
627 |
|
pKey->NoteOnTime = FrameTime + itNoteOnEvent->FragmentPos(); // will be used to calculate note length |
628 |
|
|
629 |
// cancel release process of voices on this key if needed |
// cancel release process of voices on this key if needed |
630 |
if (pKey->Active && !pEngineChannel->SustainPedal) { |
if (pKey->Active && !pEngineChannel->SustainPedal) { |
639 |
// move note on event to the key's own event list |
// move note on event to the key's own event list |
640 |
RTList<Event>::Iterator itNoteOnEventOnKeyList = itNoteOnEvent.moveToEndOf(pKey->pEvents); |
RTList<Event>::Iterator itNoteOnEventOnKeyList = itNoteOnEvent.moveToEndOf(pKey->pEvents); |
641 |
|
|
642 |
// allocate and trigger a new voice for the key |
// allocate and trigger new voice(s) for the key |
643 |
LaunchVoice(pEngineChannel, itNoteOnEventOnKeyList, 0, false, true); |
{ |
644 |
|
// first, get total amount of required voices (dependant on amount of layers) |
645 |
|
::gig::Region* pRegion = pEngineChannel->pInstrument->GetRegion(itNoteOnEventOnKeyList->Param.Note.Key); |
646 |
|
if (pRegion) { |
647 |
|
int voicesRequired = pRegion->Layers; |
648 |
|
// now launch the required amount of voices |
649 |
|
for (int i = 0; i < voicesRequired; i++) |
650 |
|
LaunchVoice(pEngineChannel, itNoteOnEventOnKeyList, i, false, true, true); |
651 |
|
} |
652 |
|
} |
653 |
|
|
654 |
|
// if neither a voice was spawned or postponed then remove note on event from key again |
655 |
|
if (!pKey->Active && !pKey->VoiceTheftsQueued) |
656 |
|
pKey->pEvents->free(itNoteOnEventOnKeyList); |
657 |
|
|
658 |
|
pKey->RoundRobinIndex++; |
659 |
} |
} |
660 |
|
|
661 |
/** |
/** |
675 |
// release voices on this key if needed |
// release voices on this key if needed |
676 |
if (pKey->Active && !pEngineChannel->SustainPedal) { |
if (pKey->Active && !pEngineChannel->SustainPedal) { |
677 |
itNoteOffEvent->Type = Event::type_release; // transform event type |
itNoteOffEvent->Type = Event::type_release; // transform event type |
|
} |
|
678 |
|
|
679 |
// move event to the key's own event list |
// move event to the key's own event list |
680 |
RTList<Event>::Iterator itNoteOffEventOnKeyList = itNoteOffEvent.moveToEndOf(pKey->pEvents); |
RTList<Event>::Iterator itNoteOffEventOnKeyList = itNoteOffEvent.moveToEndOf(pKey->pEvents); |
681 |
|
|
682 |
// spawn release triggered voice(s) if needed |
// spawn release triggered voice(s) if needed |
683 |
if (pKey->ReleaseTrigger) { |
if (pKey->ReleaseTrigger) { |
684 |
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) |
685 |
pKey->ReleaseTrigger = false; |
::gig::Region* pRegion = pEngineChannel->pInstrument->GetRegion(itNoteOffEventOnKeyList->Param.Note.Key); |
686 |
|
if (pRegion) { |
687 |
|
int voicesRequired = pRegion->Layers; |
688 |
|
|
689 |
|
// MIDI note-on velocity is used instead of note-off velocity |
690 |
|
itNoteOffEventOnKeyList->Param.Note.Velocity = pKey->Velocity; |
691 |
|
|
692 |
|
// now launch the required amount of voices |
693 |
|
for (int i = 0; i < voicesRequired; i++) |
694 |
|
LaunchVoice(pEngineChannel, itNoteOffEventOnKeyList, i, true, false, false); //FIXME: for the moment we don't perform voice stealing for release triggered samples |
695 |
|
} |
696 |
|
pKey->ReleaseTrigger = false; |
697 |
|
} |
698 |
|
|
699 |
|
// if neither a voice was spawned or postponed then remove note off event from key again |
700 |
|
if (!pKey->Active && !pKey->VoiceTheftsQueued) |
701 |
|
pKey->pEvents->free(itNoteOffEventOnKeyList); |
702 |
} |
} |
703 |
} |
} |
704 |
|
|
711 |
*/ |
*/ |
712 |
void Engine::ProcessPitchbend(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itPitchbendEvent) { |
void Engine::ProcessPitchbend(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itPitchbendEvent) { |
713 |
pEngineChannel->Pitch = itPitchbendEvent->Param.Pitch.Pitch; // store current pitch value |
pEngineChannel->Pitch = itPitchbendEvent->Param.Pitch.Pitch; // store current pitch value |
714 |
itPitchbendEvent.moveToEndOf(pSynthesisEvents[Event::destination_vco]); |
itPitchbendEvent.moveToEndOf(pEngineChannel->pSynthesisEvents[Event::destination_vco]); |
715 |
} |
} |
716 |
|
|
717 |
/** |
/** |
728 |
* @param VoiceStealing - if voice stealing should be performed |
* @param VoiceStealing - if voice stealing should be performed |
729 |
* when there is no free voice |
* when there is no free voice |
730 |
* (optional, default = true) |
* (optional, default = true) |
731 |
|
* @param HandleKeyGroupConflicts - if voices should be killed due to a |
732 |
|
* key group conflict |
733 |
* @returns pointer to new voice or NULL if there was no free voice or |
* @returns pointer to new voice or NULL if there was no free voice or |
734 |
* if the voice wasn't triggered (for example when no region is |
* if the voice wasn't triggered (for example when no region is |
735 |
* defined for the given key). |
* defined for the given key). |
736 |
*/ |
*/ |
737 |
Pool<Voice>::Iterator Engine::LaunchVoice(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itNoteOnEvent, int iLayer, bool ReleaseTriggerVoice, bool VoiceStealing) { |
Pool<Voice>::Iterator Engine::LaunchVoice(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itNoteOnEvent, int iLayer, bool ReleaseTriggerVoice, bool VoiceStealing, bool HandleKeyGroupConflicts) { |
738 |
midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[itNoteOnEvent->Param.Note.Key]; |
midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[itNoteOnEvent->Param.Note.Key]; |
739 |
|
::gig::Region* pRegion = pEngineChannel->pInstrument->GetRegion(itNoteOnEvent->Param.Note.Key); |
740 |
|
|
741 |
|
// if nothing defined for this key |
742 |
|
if (!pRegion) return Pool<Voice>::Iterator(); // nothing to do |
743 |
|
|
744 |
|
// handle key group (a.k.a. exclusive group) conflicts |
745 |
|
if (HandleKeyGroupConflicts) { |
746 |
|
// only mark the first voice of a layered voice (group) to be in a |
747 |
|
// key group, so the layered voices won't kill each other |
748 |
|
int iKeyGroup = (iLayer == 0 && !ReleaseTriggerVoice) ? pRegion->KeyGroup : 0; |
749 |
|
if (iKeyGroup) { // if this voice / key belongs to a key group |
750 |
|
uint** ppKeyGroup = &pEngineChannel->ActiveKeyGroups[iKeyGroup]; |
751 |
|
if (*ppKeyGroup) { // if there's already an active key in that key group |
752 |
|
midi_key_info_t* pOtherKey = &pEngineChannel->pMIDIKeyInfo[**ppKeyGroup]; |
753 |
|
// kill all voices on the (other) key |
754 |
|
RTList<Voice>::Iterator itVoiceToBeKilled = pOtherKey->pActiveVoices->first(); |
755 |
|
RTList<Voice>::Iterator end = pOtherKey->pActiveVoices->end(); |
756 |
|
for (; itVoiceToBeKilled != end; ++itVoiceToBeKilled) { |
757 |
|
if (itVoiceToBeKilled->Type != Voice::type_release_trigger) { |
758 |
|
itVoiceToBeKilled->Kill(itNoteOnEvent); |
759 |
|
--VoiceSpawnsLeft; //FIXME: just a hack, we should better check in StealVoice() if the voice was killed due to key conflict |
760 |
|
} |
761 |
|
} |
762 |
|
} |
763 |
|
} |
764 |
|
} |
765 |
|
|
766 |
// allocate a new voice for the key |
// allocate a new voice for the key |
767 |
Pool<Voice>::Iterator itNewVoice = pKey->pActiveVoices->allocAppend(); |
Pool<Voice>::Iterator itNewVoice = pKey->pActiveVoices->allocAppend(); |
772 |
pKey->pActiveVoices->free(itNewVoice); |
pKey->pActiveVoices->free(itNewVoice); |
773 |
} |
} |
774 |
else { // on success |
else { // on success |
775 |
uint** ppKeyGroup = NULL; |
--VoiceSpawnsLeft; |
|
if (itNewVoice->KeyGroup) { // if this voice / key belongs to a key group |
|
|
ppKeyGroup = &pEngineChannel->ActiveKeyGroups[itNewVoice->KeyGroup]; |
|
|
if (*ppKeyGroup) { // if there's already an active key in that key group |
|
|
midi_key_info_t* pOtherKey = &pEngineChannel->pMIDIKeyInfo[**ppKeyGroup]; |
|
|
// kill all voices on the (other) key |
|
|
RTList<Voice>::Iterator itVoiceToBeKilled = pOtherKey->pActiveVoices->first(); |
|
|
RTList<Voice>::Iterator end = pOtherKey->pActiveVoices->end(); |
|
|
for (; itVoiceToBeKilled != end; ++itVoiceToBeKilled) { |
|
|
if (itVoiceToBeKilled->Type != Voice::type_release_trigger) itVoiceToBeKilled->Kill(itNoteOnEvent); |
|
|
} |
|
|
} |
|
|
} |
|
776 |
if (!pKey->Active) { // mark as active key |
if (!pKey->Active) { // mark as active key |
777 |
pKey->Active = true; |
pKey->Active = true; |
778 |
pKey->itSelf = pEngineChannel->pActiveKeys->allocAppend(); |
pKey->itSelf = pEngineChannel->pActiveKeys->allocAppend(); |
779 |
*pKey->itSelf = itNoteOnEvent->Param.Note.Key; |
*pKey->itSelf = itNoteOnEvent->Param.Note.Key; |
780 |
} |
} |
781 |
if (itNewVoice->KeyGroup) { |
if (itNewVoice->KeyGroup) { |
782 |
|
uint** ppKeyGroup = &pEngineChannel->ActiveKeyGroups[itNewVoice->KeyGroup]; |
783 |
*ppKeyGroup = &*pKey->itSelf; // 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 |
784 |
} |
} |
785 |
if (itNewVoice->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) |
787 |
} |
} |
788 |
} |
} |
789 |
else if (VoiceStealing) { |
else if (VoiceStealing) { |
790 |
// first, get total amount of required voices (dependant on amount of layers) |
// try to steal one voice |
791 |
::gig::Region* pRegion = pEngineChannel->pInstrument->GetRegion(itNoteOnEvent->Param.Note.Key); |
int result = StealVoice(pEngineChannel, itNoteOnEvent); |
792 |
if (!pRegion) return Pool<Voice>::Iterator(); // nothing defined for this MIDI key, so no voice needed |
if (!result) { // voice stolen successfully |
793 |
int voicesRequired = pRegion->Layers; |
// put note-on event into voice-stealing queue, so it will be reprocessed after killed voice died |
794 |
|
RTList<Event>::Iterator itStealEvent = pVoiceStealingQueue->allocAppend(); |
795 |
// now steal the (remaining) amount of voices |
if (itStealEvent) { |
796 |
for (int i = iLayer; i < voicesRequired; i++) |
*itStealEvent = *itNoteOnEvent; // copy event |
797 |
StealVoice(pEngineChannel, itNoteOnEvent); |
itStealEvent->Param.Note.Layer = iLayer; |
798 |
|
itStealEvent->Param.Note.ReleaseTrigger = ReleaseTriggerVoice; |
799 |
// put note-on event into voice-stealing queue, so it will be reprocessed after killed voice died |
pKey->VoiceTheftsQueued++; |
800 |
RTList<Event>::Iterator itStealEvent = pVoiceStealingQueue->allocAppend(); |
} |
801 |
if (itStealEvent) { |
else dmsg(1,("Voice stealing queue full!\n")); |
|
*itStealEvent = *itNoteOnEvent; // copy event |
|
|
itStealEvent->Param.Note.Layer = iLayer; |
|
|
itStealEvent->Param.Note.ReleaseTrigger = ReleaseTriggerVoice; |
|
802 |
} |
} |
|
else dmsg(1,("Voice stealing queue full!\n")); |
|
803 |
} |
} |
804 |
|
|
805 |
return Pool<Voice>::Iterator(); // no free voice or error |
return Pool<Voice>::Iterator(); // no free voice or error |
813 |
* |
* |
814 |
* @param pEngineChannel - engine channel on which this event occured on |
* @param pEngineChannel - engine channel on which this event occured on |
815 |
* @param itNoteOnEvent - key, velocity and time stamp of the event |
* @param itNoteOnEvent - key, velocity and time stamp of the event |
816 |
|
* @returns 0 on success, a value < 0 if no active voice could be picked for voice stealing |
817 |
*/ |
*/ |
818 |
void Engine::StealVoice(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itNoteOnEvent) { |
int Engine::StealVoice(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itNoteOnEvent) { |
819 |
|
if (VoiceSpawnsLeft <= 0) { |
820 |
|
dmsg(1,("Max. voice thefts per audio fragment reached (you may raise CONFIG_MAX_VOICES).\n")); |
821 |
|
return -1; |
822 |
|
} |
823 |
if (!pEventPool->poolIsEmpty()) { |
if (!pEventPool->poolIsEmpty()) { |
824 |
|
|
825 |
RTList<uint>::Iterator iuiOldestKey; |
RTList<Voice>::Iterator itSelectedVoice; |
|
RTList<Voice>::Iterator itOldestVoice; |
|
826 |
|
|
827 |
// Select one voice for voice stealing |
// Select one voice for voice stealing |
828 |
switch (VOICE_STEAL_ALGORITHM) { |
switch (CONFIG_VOICE_STEAL_ALGO) { |
829 |
|
|
830 |
// try to pick the oldest voice on the key where the new |
// try to pick the oldest voice on the key where the new |
831 |
// voice should be spawned, if there is no voice on that |
// voice should be spawned, if there is no voice on that |
832 |
// key, or no voice left to kill there, then procceed with |
// key, or no voice left to kill, then procceed with |
833 |
// 'oldestkey' algorithm |
// 'oldestkey' algorithm |
834 |
case voice_steal_algo_keymask: { |
case voice_steal_algo_oldestvoiceonkey: { |
835 |
midi_key_info_t* pOldestKey = &pEngineChannel->pMIDIKeyInfo[itNoteOnEvent->Param.Note.Key]; |
midi_key_info_t* pSelectedKey = &pEngineChannel->pMIDIKeyInfo[itNoteOnEvent->Param.Note.Key]; |
836 |
if (pEngineChannel->itLastStolenVoice) { |
itSelectedVoice = pSelectedKey->pActiveVoices->first(); |
837 |
itOldestVoice = pEngineChannel->itLastStolenVoice; |
// proceed iterating if voice was created in this fragment cycle |
838 |
++itOldestVoice; |
while (itSelectedVoice && !itSelectedVoice->IsStealable()) ++itSelectedVoice; |
839 |
} |
// if we haven't found a voice then proceed with algorithm 'oldestkey' |
840 |
else { // no voice stolen in this audio fragment cycle yet |
if (itSelectedVoice && itSelectedVoice->IsStealable()) break; |
|
itOldestVoice = pOldestKey->pActiveVoices->first(); |
|
|
} |
|
|
if (itOldestVoice) { |
|
|
iuiOldestKey = pOldestKey->itSelf; |
|
|
break; // selection succeeded |
|
|
} |
|
841 |
} // no break - intentional ! |
} // no break - intentional ! |
842 |
|
|
843 |
// try to pick the oldest voice on the oldest active key |
// try to pick the oldest voice on the oldest active key |
844 |
// (caution: must stay after 'keymask' algorithm !) |
// from the same engine channel |
845 |
|
// (caution: must stay after 'oldestvoiceonkey' algorithm !) |
846 |
case voice_steal_algo_oldestkey: { |
case voice_steal_algo_oldestkey: { |
847 |
if (pEngineChannel->itLastStolenVoice) { |
// if we already stole in this fragment, try to proceed on same key |
848 |
midi_key_info_t* pOldestKey = &pEngineChannel->pMIDIKeyInfo[*pEngineChannel->iuiLastStolenKey]; |
if (this->itLastStolenVoice) { |
849 |
itOldestVoice = pEngineChannel->itLastStolenVoice; |
itSelectedVoice = this->itLastStolenVoice; |
850 |
++itOldestVoice; |
do { |
851 |
if (!itOldestVoice) { |
++itSelectedVoice; |
852 |
iuiOldestKey = pEngineChannel->iuiLastStolenKey; |
} while (itSelectedVoice && !itSelectedVoice->IsStealable()); // proceed iterating if voice was created in this fragment cycle |
853 |
++iuiOldestKey; |
// found a "stealable" voice ? |
854 |
if (iuiOldestKey) { |
if (itSelectedVoice && itSelectedVoice->IsStealable()) { |
855 |
midi_key_info_t* pOldestKey = &pEngineChannel->pMIDIKeyInfo[*iuiOldestKey]; |
// remember which voice we stole, so we can simply proceed on next voice stealing |
856 |
itOldestVoice = pOldestKey->pActiveVoices->first(); |
this->itLastStolenVoice = itSelectedVoice; |
857 |
} |
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; |
|
|
} |
|
858 |
} |
} |
|
else iuiOldestKey = pEngineChannel->iuiLastStolenKey; |
|
859 |
} |
} |
860 |
else { // no voice stolen in this audio fragment cycle yet |
// get (next) oldest key |
861 |
iuiOldestKey = pEngineChannel->pActiveKeys->first(); |
RTList<uint>::Iterator iuiSelectedKey = (this->iuiLastStolenKey) ? ++this->iuiLastStolenKey : pEngineChannel->pActiveKeys->first(); |
862 |
midi_key_info_t* pOldestKey = &pEngineChannel->pMIDIKeyInfo[*iuiOldestKey]; |
while (iuiSelectedKey) { |
863 |
itOldestVoice = pOldestKey->pActiveVoices->first(); |
midi_key_info_t* pSelectedKey = &pEngineChannel->pMIDIKeyInfo[*iuiSelectedKey]; |
864 |
|
itSelectedVoice = pSelectedKey->pActiveVoices->first(); |
865 |
|
// proceed iterating if voice was created in this fragment cycle |
866 |
|
while (itSelectedVoice && !itSelectedVoice->IsStealable()) ++itSelectedVoice; |
867 |
|
// found a "stealable" voice ? |
868 |
|
if (itSelectedVoice && itSelectedVoice->IsStealable()) { |
869 |
|
// remember which voice on which key we stole, so we can simply proceed on next voice stealing |
870 |
|
this->iuiLastStolenKey = iuiSelectedKey; |
871 |
|
this->itLastStolenVoice = itSelectedVoice; |
872 |
|
break; // selection succeeded |
873 |
|
} |
874 |
|
++iuiSelectedKey; // get next oldest key |
875 |
} |
} |
876 |
break; |
break; |
877 |
} |
} |
880 |
case voice_steal_algo_none: |
case voice_steal_algo_none: |
881 |
default: { |
default: { |
882 |
dmsg(1,("No free voice (voice stealing disabled)!\n")); |
dmsg(1,("No free voice (voice stealing disabled)!\n")); |
883 |
return; |
return -1; |
884 |
} |
} |
885 |
} |
} |
886 |
|
|
887 |
//FIXME: can be removed, just a sanity check for debugging |
// if we couldn't steal a voice from the same engine channel then |
888 |
if (!itOldestVoice->IsActive()) dmsg(1,("gig::Engine: ERROR, tried to steal a voice which was not active !!!\n")); |
// steal oldest voice on the oldest key from any other engine channel |
889 |
|
// (the smaller engine channel number, the higher priority) |
890 |
|
if (!itSelectedVoice || !itSelectedVoice->IsStealable()) { |
891 |
|
EngineChannel* pSelectedChannel; |
892 |
|
int iChannelIndex; |
893 |
|
// select engine channel |
894 |
|
if (pLastStolenChannel) { |
895 |
|
pSelectedChannel = pLastStolenChannel; |
896 |
|
iChannelIndex = pSelectedChannel->iEngineIndexSelf; |
897 |
|
} else { // pick the engine channel followed by this engine channel |
898 |
|
iChannelIndex = (pEngineChannel->iEngineIndexSelf + 1) % engineChannels.size(); |
899 |
|
pSelectedChannel = engineChannels[iChannelIndex]; |
900 |
|
} |
901 |
|
|
902 |
|
// if we already stole in this fragment, try to proceed on same key |
903 |
|
if (this->itLastStolenVoiceGlobally) { |
904 |
|
itSelectedVoice = this->itLastStolenVoiceGlobally; |
905 |
|
do { |
906 |
|
++itSelectedVoice; |
907 |
|
} while (itSelectedVoice && !itSelectedVoice->IsStealable()); // proceed iterating if voice was created in this fragment cycle |
908 |
|
} |
909 |
|
|
910 |
|
#if CONFIG_DEVMODE |
911 |
|
EngineChannel* pBegin = pSelectedChannel; // to detect endless loop |
912 |
|
#endif // CONFIG_DEVMODE |
913 |
|
|
914 |
|
// did we find a 'stealable' voice? |
915 |
|
if (itSelectedVoice && itSelectedVoice->IsStealable()) { |
916 |
|
// remember which voice we stole, so we can simply proceed on next voice stealing |
917 |
|
this->itLastStolenVoiceGlobally = itSelectedVoice; |
918 |
|
} else while (true) { // iterate through engine channels |
919 |
|
// get (next) oldest key |
920 |
|
RTList<uint>::Iterator iuiSelectedKey = (this->iuiLastStolenKeyGlobally) ? ++this->iuiLastStolenKeyGlobally : pSelectedChannel->pActiveKeys->first(); |
921 |
|
this->iuiLastStolenKeyGlobally = RTList<uint>::Iterator(); // to prevent endless loop (see line above) |
922 |
|
while (iuiSelectedKey) { |
923 |
|
midi_key_info_t* pSelectedKey = &pSelectedChannel->pMIDIKeyInfo[*iuiSelectedKey]; |
924 |
|
itSelectedVoice = pSelectedKey->pActiveVoices->first(); |
925 |
|
// proceed iterating if voice was created in this fragment cycle |
926 |
|
while (itSelectedVoice && !itSelectedVoice->IsStealable()) ++itSelectedVoice; |
927 |
|
// found a "stealable" voice ? |
928 |
|
if (itSelectedVoice && itSelectedVoice->IsStealable()) { |
929 |
|
// remember which voice on which key on which engine channel we stole, so we can simply proceed on next voice stealing |
930 |
|
this->iuiLastStolenKeyGlobally = iuiSelectedKey; |
931 |
|
this->itLastStolenVoiceGlobally = itSelectedVoice; |
932 |
|
this->pLastStolenChannel = pSelectedChannel; |
933 |
|
goto stealable_voice_found; // selection succeeded |
934 |
|
} |
935 |
|
++iuiSelectedKey; // get next key on current engine channel |
936 |
|
} |
937 |
|
// get next engine channel |
938 |
|
iChannelIndex = (iChannelIndex + 1) % engineChannels.size(); |
939 |
|
pSelectedChannel = engineChannels[iChannelIndex]; |
940 |
|
|
941 |
|
#if CONFIG_DEVMODE |
942 |
|
if (pSelectedChannel == pBegin) { |
943 |
|
dmsg(1,("FATAL ERROR: voice stealing endless loop!\n")); |
944 |
|
dmsg(1,("VoiceSpawnsLeft=%d.\n", VoiceSpawnsLeft)); |
945 |
|
dmsg(1,("Exiting.\n")); |
946 |
|
exit(-1); |
947 |
|
} |
948 |
|
#endif // CONFIG_DEVMODE |
949 |
|
} |
950 |
|
} |
951 |
|
|
952 |
|
// jump point if a 'stealable' voice was found |
953 |
|
stealable_voice_found: |
954 |
|
|
955 |
|
#if CONFIG_DEVMODE |
956 |
|
if (!itSelectedVoice->IsActive()) { |
957 |
|
dmsg(1,("gig::Engine: ERROR, tried to steal a voice which was not active !!!\n")); |
958 |
|
return -1; |
959 |
|
} |
960 |
|
#endif // CONFIG_DEVMODE |
961 |
|
|
962 |
// now kill the selected voice |
// now kill the selected voice |
963 |
itOldestVoice->Kill(itNoteOnEvent); |
itSelectedVoice->Kill(itNoteOnEvent); |
964 |
// remember which voice on which key we stole, so we can simply proceed for the next voice stealing |
|
965 |
pEngineChannel->itLastStolenVoice = itOldestVoice; |
--VoiceSpawnsLeft; |
966 |
pEngineChannel->iuiLastStolenKey = iuiOldestKey; |
|
967 |
|
return 0; // success |
968 |
|
} |
969 |
|
else { |
970 |
|
dmsg(1,("Event pool emtpy!\n")); |
971 |
|
return -1; |
972 |
} |
} |
|
else dmsg(1,("Event pool emtpy!\n")); |
|
973 |
} |
} |
974 |
|
|
975 |
/** |
/** |
1028 |
void Engine::ProcessControlChange(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itControlChangeEvent) { |
void Engine::ProcessControlChange(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itControlChangeEvent) { |
1029 |
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)); |
1030 |
|
|
1031 |
switch (itControlChangeEvent->Param.CC.Controller) { |
// update controller value in the engine channel's controller table |
1032 |
case 64: { |
pEngineChannel->ControllerTable[itControlChangeEvent->Param.CC.Controller] = itControlChangeEvent->Param.CC.Value; |
1033 |
if (itControlChangeEvent->Param.CC.Value >= 64 && !pEngineChannel->SustainPedal) { |
|
1034 |
|
// move event from the unsorted event list to the control change event list |
1035 |
|
Pool<Event>::Iterator itControlChangeEventOnCCList = itControlChangeEvent.moveToEndOf(pEngineChannel->pCCEvents); |
1036 |
|
|
1037 |
|
switch (itControlChangeEventOnCCList->Param.CC.Controller) { |
1038 |
|
case 7: { // volume |
1039 |
|
//TODO: not sample accurate yet |
1040 |
|
pEngineChannel->GlobalVolume = (float) itControlChangeEventOnCCList->Param.CC.Value / 127.0f; |
1041 |
|
pEngineChannel->bStatusChanged = true; // engine channel status has changed, so set notify flag |
1042 |
|
break; |
1043 |
|
} |
1044 |
|
case 10: { // panpot |
1045 |
|
//TODO: not sample accurate yet |
1046 |
|
const int pan = (int) itControlChangeEventOnCCList->Param.CC.Value - 64; |
1047 |
|
pEngineChannel->GlobalPanLeft = 1.0f - float(RTMath::Max(pan, 0)) / 63.0f; |
1048 |
|
pEngineChannel->GlobalPanRight = 1.0f - float(RTMath::Min(pan, 0)) / -64.0f; |
1049 |
|
break; |
1050 |
|
} |
1051 |
|
case 64: { // sustain |
1052 |
|
if (itControlChangeEventOnCCList->Param.CC.Value >= 64 && !pEngineChannel->SustainPedal) { |
1053 |
dmsg(4,("PEDAL DOWN\n")); |
dmsg(4,("PEDAL DOWN\n")); |
1054 |
pEngineChannel->SustainPedal = true; |
pEngineChannel->SustainPedal = true; |
1055 |
|
|
1056 |
// cancel release process of voices if necessary |
// cancel release process of voices if necessary |
1057 |
RTList<uint>::Iterator iuiKey = pEngineChannel->pActiveKeys->first(); |
RTList<uint>::Iterator iuiKey = pEngineChannel->pActiveKeys->first(); |
1058 |
if (iuiKey) { |
for (; iuiKey; ++iuiKey) { |
1059 |
itControlChangeEvent->Type = Event::type_cancel_release; // transform event type |
midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[*iuiKey]; |
1060 |
while (iuiKey) { |
if (!pKey->KeyPressed) { |
1061 |
midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[*iuiKey]; |
RTList<Event>::Iterator itNewEvent = pKey->pEvents->allocAppend(); |
1062 |
++iuiKey; |
if (itNewEvent) { |
1063 |
if (!pKey->KeyPressed) { |
*itNewEvent = *itControlChangeEventOnCCList; // copy event to the key's own event list |
1064 |
RTList<Event>::Iterator itNewEvent = pKey->pEvents->allocAppend(); |
itNewEvent->Type = Event::type_cancel_release; // transform event type |
|
if (itNewEvent) *itNewEvent = *itControlChangeEvent; // copy event to the key's own event list |
|
|
else dmsg(1,("Event pool emtpy!\n")); |
|
1065 |
} |
} |
1066 |
|
else dmsg(1,("Event pool emtpy!\n")); |
1067 |
} |
} |
1068 |
} |
} |
1069 |
} |
} |
1070 |
if (itControlChangeEvent->Param.CC.Value < 64 && pEngineChannel->SustainPedal) { |
if (itControlChangeEventOnCCList->Param.CC.Value < 64 && pEngineChannel->SustainPedal) { |
1071 |
dmsg(4,("PEDAL UP\n")); |
dmsg(4,("PEDAL UP\n")); |
1072 |
pEngineChannel->SustainPedal = false; |
pEngineChannel->SustainPedal = false; |
1073 |
|
|
1074 |
// release voices if their respective key is not pressed |
// release voices if their respective key is not pressed |
1075 |
RTList<uint>::Iterator iuiKey = pEngineChannel->pActiveKeys->first(); |
RTList<uint>::Iterator iuiKey = pEngineChannel->pActiveKeys->first(); |
1076 |
if (iuiKey) { |
for (; iuiKey; ++iuiKey) { |
1077 |
itControlChangeEvent->Type = Event::type_release; // transform event type |
midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[*iuiKey]; |
1078 |
while (iuiKey) { |
if (!pKey->KeyPressed) { |
1079 |
midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[*iuiKey]; |
RTList<Event>::Iterator itNewEvent = pKey->pEvents->allocAppend(); |
1080 |
++iuiKey; |
if (itNewEvent) { |
1081 |
if (!pKey->KeyPressed) { |
*itNewEvent = *itControlChangeEventOnCCList; // copy event to the key's own event list |
1082 |
RTList<Event>::Iterator itNewEvent = pKey->pEvents->allocAppend(); |
itNewEvent->Type = Event::type_release; // transform event type |
|
if (itNewEvent) *itNewEvent = *itControlChangeEvent; // copy event to the key's own event list |
|
|
else dmsg(1,("Event pool emtpy!\n")); |
|
1083 |
} |
} |
1084 |
|
else dmsg(1,("Event pool emtpy!\n")); |
1085 |
} |
} |
1086 |
} |
} |
1087 |
} |
} |
1088 |
break; |
break; |
1089 |
} |
} |
|
} |
|
1090 |
|
|
|
// update controller value in the engine's controller table |
|
|
pEngineChannel->ControllerTable[itControlChangeEvent->Param.CC.Controller] = itControlChangeEvent->Param.CC.Value; |
|
1091 |
|
|
1092 |
// move event from the unsorted event list to the control change event list |
// Channel Mode Messages |
1093 |
itControlChangeEvent.moveToEndOf(pCCEvents); |
|
1094 |
|
case 120: { // all sound off |
1095 |
|
KillAllVoices(pEngineChannel, itControlChangeEventOnCCList); |
1096 |
|
break; |
1097 |
|
} |
1098 |
|
case 121: { // reset all controllers |
1099 |
|
pEngineChannel->ResetControllers(); |
1100 |
|
break; |
1101 |
|
} |
1102 |
|
case 123: { // all notes off |
1103 |
|
ReleaseAllVoices(pEngineChannel, itControlChangeEventOnCCList); |
1104 |
|
break; |
1105 |
|
} |
1106 |
|
} |
1107 |
} |
} |
1108 |
|
|
1109 |
/** |
/** |
1121 |
|
|
1122 |
switch (id) { |
switch (id) { |
1123 |
case 0x41: { // Roland |
case 0x41: { // Roland |
1124 |
|
dmsg(3,("Roland Sysex\n")); |
1125 |
uint8_t device_id, model_id, cmd_id; |
uint8_t device_id, model_id, cmd_id; |
1126 |
if (!reader.pop(&device_id)) goto free_sysex_data; |
if (!reader.pop(&device_id)) goto free_sysex_data; |
1127 |
if (!reader.pop(&model_id)) goto free_sysex_data; |
if (!reader.pop(&model_id)) goto free_sysex_data; |
1134 |
const RingBuffer<uint8_t>::NonVolatileReader checksum_reader = reader; // so we can calculate the check sum later |
const RingBuffer<uint8_t>::NonVolatileReader checksum_reader = reader; // so we can calculate the check sum later |
1135 |
if (reader.read(&addr[0], 3) != 3) goto free_sysex_data; |
if (reader.read(&addr[0], 3) != 3) goto free_sysex_data; |
1136 |
if (addr[0] == 0x40 && addr[1] == 0x00) { // System Parameters |
if (addr[0] == 0x40 && addr[1] == 0x00) { // System Parameters |
1137 |
|
dmsg(3,("\tSystem Parameter\n")); |
1138 |
} |
} |
1139 |
else if (addr[0] == 0x40 && addr[1] == 0x01) { // Common Parameters |
else if (addr[0] == 0x40 && addr[1] == 0x01) { // Common Parameters |
1140 |
|
dmsg(3,("\tCommon Parameter\n")); |
1141 |
} |
} |
1142 |
else if (addr[0] == 0x40 && (addr[1] & 0xf0) == 0x10) { // Part Parameters (1) |
else if (addr[0] == 0x40 && (addr[1] & 0xf0) == 0x10) { // Part Parameters (1) |
1143 |
switch (addr[3]) { |
dmsg(3,("\tPart Parameter\n")); |
1144 |
|
switch (addr[2]) { |
1145 |
case 0x40: { // scale tuning |
case 0x40: { // scale tuning |
1146 |
|
dmsg(3,("\t\tScale Tuning\n")); |
1147 |
uint8_t scale_tunes[12]; // detuning of all 12 semitones of an octave |
uint8_t scale_tunes[12]; // detuning of all 12 semitones of an octave |
1148 |
if (reader.read(&scale_tunes[0], 12) != 12) goto free_sysex_data; |
if (reader.read(&scale_tunes[0], 12) != 12) goto free_sysex_data; |
1149 |
uint8_t checksum; |
uint8_t checksum; |
1150 |
if (!reader.pop(&checksum)) goto free_sysex_data; |
if (!reader.pop(&checksum)) goto free_sysex_data; |
1151 |
if (GSCheckSum(checksum_reader, 12) != checksum) goto free_sysex_data; |
#if CONFIG_ASSERT_GS_SYSEX_CHECKSUM |
1152 |
|
if (GSCheckSum(checksum_reader, 12)) goto free_sysex_data; |
1153 |
|
#endif // CONFIG_ASSERT_GS_SYSEX_CHECKSUM |
1154 |
for (int i = 0; i < 12; i++) scale_tunes[i] -= 64; |
for (int i = 0; i < 12; i++) scale_tunes[i] -= 64; |
1155 |
AdjustScale((int8_t*) scale_tunes); |
AdjustScale((int8_t*) scale_tunes); |
1156 |
|
dmsg(3,("\t\t\tNew scale applied.\n")); |
1157 |
break; |
break; |
1158 |
} |
} |
1159 |
} |
} |
1198 |
} |
} |
1199 |
|
|
1200 |
/** |
/** |
1201 |
|
* Releases all voices on an engine channel. All voices will go into |
1202 |
|
* the release stage and thus it might take some time (e.g. dependant to |
1203 |
|
* their envelope release time) until they actually die. |
1204 |
|
* |
1205 |
|
* @param pEngineChannel - engine channel on which all voices should be released |
1206 |
|
* @param itReleaseEvent - event which caused this releasing of all voices |
1207 |
|
*/ |
1208 |
|
void Engine::ReleaseAllVoices(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itReleaseEvent) { |
1209 |
|
RTList<uint>::Iterator iuiKey = pEngineChannel->pActiveKeys->first(); |
1210 |
|
while (iuiKey) { |
1211 |
|
midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[*iuiKey]; |
1212 |
|
++iuiKey; |
1213 |
|
// append a 'release' event to the key's own event list |
1214 |
|
RTList<Event>::Iterator itNewEvent = pKey->pEvents->allocAppend(); |
1215 |
|
if (itNewEvent) { |
1216 |
|
*itNewEvent = *itReleaseEvent; // copy original event (to the key's event list) |
1217 |
|
itNewEvent->Type = Event::type_release; // transform event type |
1218 |
|
} |
1219 |
|
else dmsg(1,("Event pool emtpy!\n")); |
1220 |
|
} |
1221 |
|
} |
1222 |
|
|
1223 |
|
/** |
1224 |
|
* Kills all voices on an engine channel as soon as possible. Voices |
1225 |
|
* won't get into release state, their volume level will be ramped down |
1226 |
|
* as fast as possible. |
1227 |
|
* |
1228 |
|
* @param pEngineChannel - engine channel on which all voices should be killed |
1229 |
|
* @param itKillEvent - event which caused this killing of all voices |
1230 |
|
*/ |
1231 |
|
void Engine::KillAllVoices(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itKillEvent) { |
1232 |
|
RTList<uint>::Iterator iuiKey = pEngineChannel->pActiveKeys->first(); |
1233 |
|
RTList<uint>::Iterator end = pEngineChannel->pActiveKeys->end(); |
1234 |
|
while (iuiKey != end) { // iterate through all active keys |
1235 |
|
midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[*iuiKey]; |
1236 |
|
++iuiKey; |
1237 |
|
RTList<Voice>::Iterator itVoice = pKey->pActiveVoices->first(); |
1238 |
|
RTList<Voice>::Iterator itVoicesEnd = pKey->pActiveVoices->end(); |
1239 |
|
for (; itVoice != itVoicesEnd; ++itVoice) { // iterate through all voices on this key |
1240 |
|
itVoice->Kill(itKillEvent); |
1241 |
|
--VoiceSpawnsLeft; //FIXME: just a temporary workaround, we should check the cause in StealVoice() instead |
1242 |
|
} |
1243 |
|
} |
1244 |
|
} |
1245 |
|
|
1246 |
|
/** |
1247 |
* Initialize the parameter sequence for the modulation destination given by |
* Initialize the parameter sequence for the modulation destination given by |
1248 |
* by 'dst' with the constant value given by val. |
* by 'dst' with the constant value given by val. |
1249 |
*/ |
*/ |
1256 |
m[i+2] = val; |
m[i+2] = val; |
1257 |
m[i+3] = val; |
m[i+3] = val; |
1258 |
} |
} |
1259 |
} |
} |
1260 |
|
|
1261 |
uint Engine::VoiceCount() { |
uint Engine::VoiceCount() { |
1262 |
return ActiveVoiceCount; |
return ActiveVoiceCount; |
1287 |
} |
} |
1288 |
|
|
1289 |
String Engine::EngineName() { |
String Engine::EngineName() { |
1290 |
return "GigEngine"; |
return LS_GIG_ENGINE_NAME; |
1291 |
} |
} |
1292 |
|
|
1293 |
String Engine::Description() { |
String Engine::Description() { |
1295 |
} |
} |
1296 |
|
|
1297 |
String Engine::Version() { |
String Engine::Version() { |
1298 |
String s = "$Revision: 1.28 $"; |
String s = "$Revision: 1.46 $"; |
1299 |
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 |
1300 |
} |
} |
1301 |
|
|