23 |
#include <sstream> |
#include <sstream> |
24 |
#include "DiskThread.h" |
#include "DiskThread.h" |
25 |
#include "Voice.h" |
#include "Voice.h" |
26 |
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#include "EGADSR.h" |
27 |
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|
28 |
#include "Engine.h" |
#include "Engine.h" |
29 |
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#include <malloc.h> |
30 |
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|
31 |
namespace LinuxSampler { namespace gig { |
namespace LinuxSampler { namespace gig { |
32 |
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|
39 |
pAudioOutputDevice = NULL; |
pAudioOutputDevice = NULL; |
40 |
pDiskThread = NULL; |
pDiskThread = NULL; |
41 |
pEventGenerator = NULL; |
pEventGenerator = NULL; |
42 |
pEventQueue = new RingBuffer<Event>(MAX_EVENTS_PER_FRAGMENT); |
pSysexBuffer = new RingBuffer<uint8_t>(SYSEX_BUFFER_SIZE, 0); |
43 |
pEventPool = new RTELMemoryPool<Event>(MAX_EVENTS_PER_FRAGMENT); |
pEventQueue = new RingBuffer<Event>(MAX_EVENTS_PER_FRAGMENT, 0); |
44 |
pVoicePool = new RTELMemoryPool<Voice>(MAX_AUDIO_VOICES); |
pEventPool = new Pool<Event>(MAX_EVENTS_PER_FRAGMENT); |
45 |
pActiveKeys = new RTELMemoryPool<uint>(128); |
pVoicePool = new Pool<Voice>(MAX_AUDIO_VOICES); |
46 |
pEvents = new RTEList<Event>(pEventPool); |
pActiveKeys = new Pool<uint>(128); |
47 |
pCCEvents = new RTEList<Event>(pEventPool); |
pVoiceStealingQueue = new RTList<Event>(pEventPool); |
48 |
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pEvents = new RTList<Event>(pEventPool); |
49 |
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pCCEvents = new RTList<Event>(pEventPool); |
50 |
for (uint i = 0; i < Event::destination_count; i++) { |
for (uint i = 0; i < Event::destination_count; i++) { |
51 |
pSynthesisEvents[i] = new RTEList<Event>(pEventPool); |
pSynthesisEvents[i] = new RTList<Event>(pEventPool); |
52 |
} |
} |
53 |
for (uint i = 0; i < 128; i++) { |
for (uint i = 0; i < 128; i++) { |
54 |
pMIDIKeyInfo[i].pActiveVoices = new RTEList<Voice>(pVoicePool); |
pMIDIKeyInfo[i].pActiveVoices = new RTList<Voice>(pVoicePool); |
55 |
pMIDIKeyInfo[i].KeyPressed = false; |
pMIDIKeyInfo[i].KeyPressed = false; |
56 |
pMIDIKeyInfo[i].Active = false; |
pMIDIKeyInfo[i].Active = false; |
57 |
pMIDIKeyInfo[i].pSelf = NULL; |
pMIDIKeyInfo[i].ReleaseTrigger = false; |
58 |
pMIDIKeyInfo[i].pEvents = new RTEList<Event>(pEventPool); |
pMIDIKeyInfo[i].pEvents = new RTList<Event>(pEventPool); |
59 |
} |
} |
60 |
for (Voice* pVoice = pVoicePool->alloc(); pVoice; pVoice = pVoicePool->alloc()) { |
for (RTList<Voice>::Iterator iterVoice = pVoicePool->allocAppend(); iterVoice == pVoicePool->last(); iterVoice = pVoicePool->allocAppend()) { |
61 |
pVoice->SetEngine(this); |
iterVoice->SetEngine(this); |
62 |
} |
} |
63 |
pVoicePool->clear(); |
pVoicePool->clear(); |
64 |
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|
77 |
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|
78 |
Engine::~Engine() { |
Engine::~Engine() { |
79 |
if (pDiskThread) { |
if (pDiskThread) { |
80 |
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dmsg(1,("Stopping disk thread...")); |
81 |
pDiskThread->StopThread(); |
pDiskThread->StopThread(); |
82 |
delete pDiskThread; |
delete pDiskThread; |
83 |
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dmsg(1,("OK\n")); |
84 |
} |
} |
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|
86 |
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if (pInstrument) Instruments.HandBack(pInstrument, this); |
87 |
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|
88 |
if (pGig) delete pGig; |
if (pGig) delete pGig; |
89 |
if (pRIFF) delete pRIFF; |
if (pRIFF) delete pRIFF; |
90 |
for (uint i = 0; i < 128; i++) { |
for (uint i = 0; i < 128; i++) { |
94 |
for (uint i = 0; i < Event::destination_count; i++) { |
for (uint i = 0; i < Event::destination_count; i++) { |
95 |
if (pSynthesisEvents[i]) delete pSynthesisEvents[i]; |
if (pSynthesisEvents[i]) delete pSynthesisEvents[i]; |
96 |
} |
} |
|
delete[] pSynthesisEvents; |
|
97 |
if (pEvents) delete pEvents; |
if (pEvents) delete pEvents; |
98 |
if (pCCEvents) delete pCCEvents; |
if (pCCEvents) delete pCCEvents; |
99 |
if (pEventQueue) delete pEventQueue; |
if (pEventQueue) delete pEventQueue; |
100 |
if (pEventPool) delete pEventPool; |
if (pEventPool) delete pEventPool; |
101 |
if (pVoicePool) delete pVoicePool; |
if (pVoicePool) { |
102 |
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pVoicePool->clear(); |
103 |
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delete pVoicePool; |
104 |
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} |
105 |
if (pActiveKeys) delete pActiveKeys; |
if (pActiveKeys) delete pActiveKeys; |
106 |
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if (pSysexBuffer) delete pSysexBuffer; |
107 |
if (pEventGenerator) delete pEventGenerator; |
if (pEventGenerator) delete pEventGenerator; |
108 |
if (pMainFilterParameters) delete[] pMainFilterParameters; |
if (pMainFilterParameters) delete[] pMainFilterParameters; |
109 |
if (pBasicFilterParameters) delete[] pBasicFilterParameters; |
if (pBasicFilterParameters) delete[] pBasicFilterParameters; |
110 |
if (pSynthesisParameters[0]) delete[] pSynthesisParameters[0]; |
if (pSynthesisParameters[0]) free(pSynthesisParameters[0]); |
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if (pVoiceStealingQueue) delete pVoiceStealingQueue; |
112 |
} |
} |
113 |
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|
114 |
void Engine::Enable() { |
void Engine::Enable() { |
167 |
ActiveVoiceCountMax = 0; |
ActiveVoiceCountMax = 0; |
168 |
GlobalVolume = 1.0; |
GlobalVolume = 1.0; |
169 |
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|
170 |
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// reset voice stealing parameters |
171 |
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itLastStolenVoice = RTList<Voice>::Iterator(); |
172 |
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iuiLastStolenKey = RTList<uint>::Iterator(); |
173 |
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pVoiceStealingQueue->clear(); |
174 |
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175 |
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// reset to normal chromatic scale (means equal temper) |
176 |
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memset(&ScaleTuning[0], 0x00, 12); |
177 |
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|
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// set all MIDI controller values to zero |
// set all MIDI controller values to zero |
179 |
memset(ControllerTable, 0x00, 128); |
memset(ControllerTable, 0x00, 128); |
180 |
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|
182 |
for (uint i = 0; i < 128; i++) { |
for (uint i = 0; i < 128; i++) { |
183 |
pMIDIKeyInfo[i].pActiveVoices->clear(); |
pMIDIKeyInfo[i].pActiveVoices->clear(); |
184 |
pMIDIKeyInfo[i].pEvents->clear(); |
pMIDIKeyInfo[i].pEvents->clear(); |
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pMIDIKeyInfo[i].KeyPressed = false; |
pMIDIKeyInfo[i].KeyPressed = false; |
186 |
pMIDIKeyInfo[i].Active = false; |
pMIDIKeyInfo[i].Active = false; |
187 |
pMIDIKeyInfo[i].pSelf = NULL; |
pMIDIKeyInfo[i].ReleaseTrigger = false; |
188 |
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pMIDIKeyInfo[i].itSelf = Pool<uint>::Iterator(); |
189 |
} |
} |
190 |
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191 |
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// reset all key groups |
192 |
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map<uint,uint*>::iterator iter = ActiveKeyGroups.begin(); |
193 |
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for (; iter != ActiveKeyGroups.end(); iter++) iter->second = NULL; |
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|
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// reset all voices |
// reset all voices |
196 |
for (Voice* pVoice = pVoicePool->alloc(); pVoice; pVoice = pVoicePool->alloc()) { |
for (RTList<Voice>::Iterator iterVoice = pVoicePool->allocAppend(); iterVoice == pVoicePool->last(); iterVoice = pVoicePool->allocAppend()) { |
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pVoice->Reset(); |
iterVoice->Reset(); |
198 |
} |
} |
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pVoicePool->clear(); |
pVoicePool->clear(); |
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InstrumentIdx = Instrument; |
InstrumentIdx = Instrument; |
233 |
InstrumentStat = 0; |
InstrumentStat = 0; |
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// delete all key groups |
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ActiveKeyGroups.clear(); |
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|
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// request gig instrument from instrument manager |
// request gig instrument from instrument manager |
239 |
try { |
try { |
240 |
instrument_id_t instrid; |
instrument_id_t instrid; |
262 |
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."); |
263 |
} |
} |
264 |
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265 |
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// rebuild ActiveKeyGroups map with key groups of current instrument |
266 |
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for (::gig::Region* pRegion = pInstrument->GetFirstRegion(); pRegion; pRegion = pInstrument->GetNextRegion()) |
267 |
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if (pRegion->KeyGroup) ActiveKeyGroups[pRegion->KeyGroup] = NULL; |
268 |
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|
269 |
InstrumentStat = 100; |
InstrumentStat = 100; |
270 |
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|
271 |
// inform audio driver for the need of two channels |
// inform audio driver for the need of two channels |
297 |
* update process was completed, so we can continue with playback. |
* update process was completed, so we can continue with playback. |
298 |
*/ |
*/ |
299 |
void Engine::ResourceUpdated(::gig::Instrument* pOldResource, ::gig::Instrument* pNewResource, void* pUpdateArg) { |
void Engine::ResourceUpdated(::gig::Instrument* pOldResource, ::gig::Instrument* pNewResource, void* pUpdateArg) { |
300 |
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()) |
301 |
Enable(); |
Enable(); |
302 |
} |
} |
303 |
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|
322 |
this->MaxSamplesPerCycle = pAudioOutputDevice->MaxSamplesPerCycle(); |
this->MaxSamplesPerCycle = pAudioOutputDevice->MaxSamplesPerCycle(); |
323 |
this->SampleRate = pAudioOutputDevice->SampleRate(); |
this->SampleRate = pAudioOutputDevice->SampleRate(); |
324 |
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|
325 |
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// FIXME: audio drivers with varying fragment sizes might be a problem here |
326 |
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MaxFadeOutPos = MaxSamplesPerCycle - int(double(SampleRate) * EG_MIN_RELEASE_TIME) - 1; |
327 |
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if (MaxFadeOutPos < 0) |
328 |
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throw LinuxSamplerException("EG_MIN_RELEASE_TIME in EGADSR.h to big for current audio fragment size / sampling rate!"); |
329 |
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|
330 |
// (re)create disk thread |
// (re)create disk thread |
331 |
if (this->pDiskThread) { |
if (this->pDiskThread) { |
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dmsg(1,("Stopping disk thread...")); |
333 |
this->pDiskThread->StopThread(); |
this->pDiskThread->StopThread(); |
334 |
delete this->pDiskThread; |
delete this->pDiskThread; |
335 |
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dmsg(1,("OK\n")); |
336 |
} |
} |
337 |
this->pDiskThread = new DiskThread(((pAudioOut->MaxSamplesPerCycle() << MAX_PITCH) << 1) + 6); //FIXME: assuming stereo |
this->pDiskThread = new DiskThread(((pAudioOut->MaxSamplesPerCycle() << MAX_PITCH) << 1) + 6); //FIXME: assuming stereo |
338 |
if (!pDiskThread) { |
if (!pDiskThread) { |
340 |
exit(EXIT_FAILURE); |
exit(EXIT_FAILURE); |
341 |
} |
} |
342 |
|
|
343 |
for (Voice* pVoice = pVoicePool->alloc(); pVoice; pVoice = pVoicePool->alloc()) { |
for (RTList<Voice>::Iterator iterVoice = pVoicePool->allocAppend(); iterVoice == pVoicePool->last(); iterVoice = pVoicePool->allocAppend()) { |
344 |
pVoice->pDiskThread = this->pDiskThread; |
iterVoice->pDiskThread = this->pDiskThread; |
345 |
dmsg(3,("d")); |
dmsg(3,("d")); |
346 |
} |
} |
347 |
pVoicePool->clear(); |
pVoicePool->clear(); |
351 |
pEventGenerator = new EventGenerator(pAudioOut->SampleRate()); |
pEventGenerator = new EventGenerator(pAudioOut->SampleRate()); |
352 |
|
|
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// (re)allocate synthesis parameter matrix |
// (re)allocate synthesis parameter matrix |
354 |
if (pSynthesisParameters[0]) delete[] pSynthesisParameters[0]; |
if (pSynthesisParameters[0]) free(pSynthesisParameters[0]); |
355 |
pSynthesisParameters[0] = new float[Event::destination_count * pAudioOut->MaxSamplesPerCycle()]; |
pSynthesisParameters[0] = (float *) memalign(16,(Event::destination_count * sizeof(float) * pAudioOut->MaxSamplesPerCycle())); |
356 |
for (int dst = 1; dst < Event::destination_count; dst++) |
for (int dst = 1; dst < Event::destination_count; dst++) |
357 |
pSynthesisParameters[dst] = pSynthesisParameters[dst - 1] + pAudioOut->MaxSamplesPerCycle(); |
pSynthesisParameters[dst] = pSynthesisParameters[dst - 1] + pAudioOut->MaxSamplesPerCycle(); |
358 |
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|
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pDiskThread->StartThread(); |
pDiskThread->StartThread(); |
367 |
dmsg(1,("OK\n")); |
dmsg(1,("OK\n")); |
368 |
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|
369 |
for (Voice* pVoice = pVoicePool->first(); pVoice; pVoice = pVoicePool->next()) { |
for (RTList<Voice>::Iterator iterVoice = pVoicePool->allocAppend(); iterVoice == pVoicePool->last(); iterVoice = pVoicePool->allocAppend()) { |
370 |
if (!pVoice->pDiskThread) { |
if (!iterVoice->pDiskThread) { |
371 |
dmsg(0,("Engine -> voice::trigger: !pDiskThread\n")); |
dmsg(0,("Engine -> voice::trigger: !pDiskThread\n")); |
372 |
exit(EXIT_FAILURE); |
exit(EXIT_FAILURE); |
373 |
} |
} |
408 |
} |
} |
409 |
|
|
410 |
|
|
411 |
|
// update time of start and end of this audio fragment (as events' time stamps relate to this) |
412 |
|
pEventGenerator->UpdateFragmentTime(Samples); |
413 |
|
|
414 |
|
|
415 |
// empty the event lists for the new fragment |
// empty the event lists for the new fragment |
416 |
pEvents->clear(); |
pEvents->clear(); |
417 |
pCCEvents->clear(); |
pCCEvents->clear(); |
418 |
for (uint i = 0; i < Event::destination_count; i++) { |
for (uint i = 0; i < Event::destination_count; i++) { |
419 |
pSynthesisEvents[i]->clear(); |
pSynthesisEvents[i]->clear(); |
420 |
} |
} |
421 |
|
{ |
422 |
// read and copy events from input queue |
RTList<uint>::Iterator iuiKey = pActiveKeys->first(); |
423 |
Event event = pEventGenerator->CreateEvent(); |
RTList<uint>::Iterator end = pActiveKeys->end(); |
424 |
while (true) { |
for(; iuiKey != end; ++iuiKey) { |
425 |
if (!pEventQueue->pop(&event)) break; |
pMIDIKeyInfo[*iuiKey].pEvents->clear(); // free all events on the key |
426 |
pEvents->alloc_assign(event); |
} |
427 |
} |
} |
428 |
|
|
429 |
|
|
430 |
// update time of start and end of this audio fragment (as events' time stamps relate to this) |
// get all events from the input event queue which belong to the current fragment |
431 |
pEventGenerator->UpdateFragmentTime(Samples); |
{ |
432 |
|
RingBuffer<Event>::NonVolatileReader eventQueueReader = pEventQueue->get_non_volatile_reader(); |
433 |
|
Event* pEvent; |
434 |
|
while (true) { |
435 |
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// get next event from input event queue |
436 |
|
if (!(pEvent = eventQueueReader.pop())) break; |
437 |
|
// if younger event reached, ignore that and all subsequent ones for now |
438 |
|
if (pEvent->FragmentPos() >= Samples) { |
439 |
|
eventQueueReader--; |
440 |
|
dmsg(2,("Younger Event, pos=%d ,Samples=%d!\n",pEvent->FragmentPos(),Samples)); |
441 |
|
pEvent->ResetFragmentPos(); |
442 |
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break; |
443 |
|
} |
444 |
|
// copy event to internal event list |
445 |
|
if (pEvents->poolIsEmpty()) { |
446 |
|
dmsg(1,("Event pool emtpy!\n")); |
447 |
|
break; |
448 |
|
} |
449 |
|
*pEvents->allocAppend() = *pEvent; |
450 |
|
} |
451 |
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eventQueueReader.free(); // free all copied events from input queue |
452 |
|
} |
453 |
|
|
454 |
|
|
455 |
// process events |
// process events |
456 |
Event* pNextEvent = pEvents->first(); |
{ |
457 |
while (pNextEvent) { |
RTList<Event>::Iterator itEvent = pEvents->first(); |
458 |
Event* pEvent = pNextEvent; |
RTList<Event>::Iterator end = pEvents->end(); |
459 |
pEvents->set_current(pEvent); |
for (; itEvent != end; ++itEvent) { |
460 |
pNextEvent = pEvents->next(); |
switch (itEvent->Type) { |
461 |
switch (pEvent->Type) { |
case Event::type_note_on: |
462 |
case Event::type_note_on: |
dmsg(5,("Engine: Note on received\n")); |
463 |
dmsg(5,("Audio Thread: Note on received\n")); |
ProcessNoteOn(itEvent); |
464 |
ProcessNoteOn(pEvent); |
break; |
465 |
break; |
case Event::type_note_off: |
466 |
case Event::type_note_off: |
dmsg(5,("Engine: Note off received\n")); |
467 |
dmsg(5,("Audio Thread: Note off received\n")); |
ProcessNoteOff(itEvent); |
468 |
ProcessNoteOff(pEvent); |
break; |
469 |
break; |
case Event::type_control_change: |
470 |
case Event::type_control_change: |
dmsg(5,("Engine: MIDI CC received\n")); |
471 |
dmsg(5,("Audio Thread: MIDI CC received\n")); |
ProcessControlChange(itEvent); |
472 |
ProcessControlChange(pEvent); |
break; |
473 |
break; |
case Event::type_pitchbend: |
474 |
case Event::type_pitchbend: |
dmsg(5,("Engine: Pitchbend received\n")); |
475 |
dmsg(5,("Audio Thread: Pitchbend received\n")); |
ProcessPitchbend(itEvent); |
476 |
ProcessPitchbend(pEvent); |
break; |
477 |
break; |
case Event::type_sysex: |
478 |
|
dmsg(5,("Engine: Sysex received\n")); |
479 |
|
ProcessSysex(itEvent); |
480 |
|
break; |
481 |
|
} |
482 |
} |
} |
483 |
} |
} |
484 |
|
|
485 |
|
|
|
// render audio from all active voices |
|
486 |
int active_voices = 0; |
int active_voices = 0; |
487 |
uint* piKey = pActiveKeys->first(); |
|
488 |
while (piKey) { // iterate through all active keys |
// render audio from all active voices |
489 |
midi_key_info_t* pKey = &pMIDIKeyInfo[*piKey]; |
{ |
490 |
pActiveKeys->set_current(piKey); |
RTList<uint>::Iterator iuiKey = pActiveKeys->first(); |
491 |
piKey = pActiveKeys->next(); |
RTList<uint>::Iterator end = pActiveKeys->end(); |
492 |
|
while (iuiKey != end) { // iterate through all active keys |
493 |
Voice* pVoiceNext = pKey->pActiveVoices->first(); |
midi_key_info_t* pKey = &pMIDIKeyInfo[*iuiKey]; |
494 |
while (pVoiceNext) { // iterate through all voices on this key |
++iuiKey; |
495 |
// already get next voice on key |
|
496 |
Voice* pVoice = pVoiceNext; |
RTList<Voice>::Iterator itVoice = pKey->pActiveVoices->first(); |
497 |
pKey->pActiveVoices->set_current(pVoice); |
RTList<Voice>::Iterator itVoicesEnd = pKey->pActiveVoices->end(); |
498 |
pVoiceNext = pKey->pActiveVoices->next(); |
for (; itVoice != itVoicesEnd; ++itVoice) { // iterate through all voices on this key |
499 |
|
// now render current voice |
500 |
// now render current voice |
itVoice->Render(Samples); |
501 |
pVoice->Render(Samples); |
if (itVoice->IsActive()) active_voices++; // still active |
502 |
if (pVoice->IsActive()) active_voices++; // still active |
else { // voice reached end, is now inactive |
503 |
else { // voice reached end, is now inactive |
FreeVoice(itVoice); // remove voice from the list of active voices |
504 |
KillVoice(pVoice); // remove voice from the list of active voices |
} |
505 |
} |
} |
506 |
} |
} |
507 |
pKey->pEvents->clear(); // free all events on the key |
} |
508 |
|
|
509 |
|
|
510 |
|
// now render all postponed voices from voice stealing |
511 |
|
{ |
512 |
|
RTList<Event>::Iterator itVoiceStealEvent = pVoiceStealingQueue->first(); |
513 |
|
RTList<Event>::Iterator end = pVoiceStealingQueue->end(); |
514 |
|
for (; itVoiceStealEvent != end; ++itVoiceStealEvent) { |
515 |
|
Pool<Voice>::Iterator itNewVoice = LaunchVoice(itVoiceStealEvent, itVoiceStealEvent->Param.Note.Layer, itVoiceStealEvent->Param.Note.ReleaseTrigger, false); |
516 |
|
if (itNewVoice) { |
517 |
|
for (; itNewVoice; itNewVoice = itNewVoice->itChildVoice) { |
518 |
|
itNewVoice->Render(Samples); |
519 |
|
if (itNewVoice->IsActive()) active_voices++; // still active |
520 |
|
else { // voice reached end, is now inactive |
521 |
|
FreeVoice(itNewVoice); // remove voice from the list of active voices |
522 |
|
} |
523 |
|
} |
524 |
|
} |
525 |
|
else dmsg(1,("gig::Engine: ERROR, voice stealing didn't work out!\n")); |
526 |
|
} |
527 |
|
} |
528 |
|
// reset voice stealing for the new fragment |
529 |
|
pVoiceStealingQueue->clear(); |
530 |
|
itLastStolenVoice = RTList<Voice>::Iterator(); |
531 |
|
iuiLastStolenKey = RTList<uint>::Iterator(); |
532 |
|
|
533 |
|
|
534 |
|
// free all keys which have no active voices left |
535 |
|
{ |
536 |
|
RTList<uint>::Iterator iuiKey = pActiveKeys->first(); |
537 |
|
RTList<uint>::Iterator end = pActiveKeys->end(); |
538 |
|
while (iuiKey != end) { // iterate through all active keys |
539 |
|
midi_key_info_t* pKey = &pMIDIKeyInfo[*iuiKey]; |
540 |
|
++iuiKey; |
541 |
|
if (pKey->pActiveVoices->isEmpty()) FreeKey(pKey); |
542 |
|
#if DEVMODE |
543 |
|
else { // FIXME: should be removed before the final release (purpose: just a sanity check for debugging) |
544 |
|
RTList<Voice>::Iterator itVoice = pKey->pActiveVoices->first(); |
545 |
|
RTList<Voice>::Iterator itVoicesEnd = pKey->pActiveVoices->end(); |
546 |
|
for (; itVoice != itVoicesEnd; ++itVoice) { // iterate through all voices on this key |
547 |
|
if (itVoice->itKillEvent) { |
548 |
|
dmsg(1,("gig::Engine: ERROR, killed voice survived !!!\n")); |
549 |
|
} |
550 |
|
} |
551 |
|
} |
552 |
|
#endif // DEVMODE |
553 |
|
} |
554 |
} |
} |
555 |
|
|
556 |
|
|
571 |
* @param Velocity - MIDI velocity value of the triggered key |
* @param Velocity - MIDI velocity value of the triggered key |
572 |
*/ |
*/ |
573 |
void Engine::SendNoteOn(uint8_t Key, uint8_t Velocity) { |
void Engine::SendNoteOn(uint8_t Key, uint8_t Velocity) { |
574 |
Event event = pEventGenerator->CreateEvent(); |
Event event = pEventGenerator->CreateEvent(); |
575 |
event.Type = Event::type_note_on; |
event.Type = Event::type_note_on; |
576 |
event.Key = Key; |
event.Param.Note.Key = Key; |
577 |
event.Velocity = Velocity; |
event.Param.Note.Velocity = Velocity; |
578 |
if (this->pEventQueue->write_space() > 0) this->pEventQueue->push(&event); |
if (this->pEventQueue->write_space() > 0) this->pEventQueue->push(&event); |
579 |
else dmsg(1,("Engine: Input event queue full!")); |
else dmsg(1,("Engine: Input event queue full!")); |
580 |
} |
} |
587 |
* @param Velocity - MIDI release velocity value of the released key |
* @param Velocity - MIDI release velocity value of the released key |
588 |
*/ |
*/ |
589 |
void Engine::SendNoteOff(uint8_t Key, uint8_t Velocity) { |
void Engine::SendNoteOff(uint8_t Key, uint8_t Velocity) { |
590 |
Event event = pEventGenerator->CreateEvent(); |
Event event = pEventGenerator->CreateEvent(); |
591 |
event.Type = Event::type_note_off; |
event.Type = Event::type_note_off; |
592 |
event.Key = Key; |
event.Param.Note.Key = Key; |
593 |
event.Velocity = Velocity; |
event.Param.Note.Velocity = Velocity; |
594 |
if (this->pEventQueue->write_space() > 0) this->pEventQueue->push(&event); |
if (this->pEventQueue->write_space() > 0) this->pEventQueue->push(&event); |
595 |
else dmsg(1,("Engine: Input event queue full!")); |
else dmsg(1,("Engine: Input event queue full!")); |
596 |
} |
} |
602 |
* @param Pitch - MIDI pitch value (-8192 ... +8191) |
* @param Pitch - MIDI pitch value (-8192 ... +8191) |
603 |
*/ |
*/ |
604 |
void Engine::SendPitchbend(int Pitch) { |
void Engine::SendPitchbend(int Pitch) { |
605 |
Event event = pEventGenerator->CreateEvent(); |
Event event = pEventGenerator->CreateEvent(); |
606 |
event.Type = Event::type_pitchbend; |
event.Type = Event::type_pitchbend; |
607 |
event.Pitch = Pitch; |
event.Param.Pitch.Pitch = Pitch; |
608 |
if (this->pEventQueue->write_space() > 0) this->pEventQueue->push(&event); |
if (this->pEventQueue->write_space() > 0) this->pEventQueue->push(&event); |
609 |
else dmsg(1,("Engine: Input event queue full!")); |
else dmsg(1,("Engine: Input event queue full!")); |
610 |
} |
} |
617 |
* @param Value - value of the control change |
* @param Value - value of the control change |
618 |
*/ |
*/ |
619 |
void Engine::SendControlChange(uint8_t Controller, uint8_t Value) { |
void Engine::SendControlChange(uint8_t Controller, uint8_t Value) { |
620 |
Event event = pEventGenerator->CreateEvent(); |
Event event = pEventGenerator->CreateEvent(); |
621 |
event.Type = Event::type_control_change; |
event.Type = Event::type_control_change; |
622 |
event.Controller = Controller; |
event.Param.CC.Controller = Controller; |
623 |
event.Value = Value; |
event.Param.CC.Value = Value; |
624 |
if (this->pEventQueue->write_space() > 0) this->pEventQueue->push(&event); |
if (this->pEventQueue->write_space() > 0) this->pEventQueue->push(&event); |
625 |
else dmsg(1,("Engine: Input event queue full!")); |
else dmsg(1,("Engine: Input event queue full!")); |
626 |
} |
} |
627 |
|
|
628 |
/** |
/** |
629 |
|
* Will be called by the MIDI input device whenever a MIDI system |
630 |
|
* exclusive message has arrived. |
631 |
|
* |
632 |
|
* @param pData - pointer to sysex data |
633 |
|
* @param Size - lenght of sysex data (in bytes) |
634 |
|
*/ |
635 |
|
void Engine::SendSysex(void* pData, uint Size) { |
636 |
|
Event event = pEventGenerator->CreateEvent(); |
637 |
|
event.Type = Event::type_sysex; |
638 |
|
event.Param.Sysex.Size = Size; |
639 |
|
if (pEventQueue->write_space() > 0) { |
640 |
|
if (pSysexBuffer->write_space() >= Size) { |
641 |
|
// copy sysex data to input buffer |
642 |
|
uint toWrite = Size; |
643 |
|
uint8_t* pPos = (uint8_t*) pData; |
644 |
|
while (toWrite) { |
645 |
|
const uint writeNow = RTMath::Min(toWrite, pSysexBuffer->write_space_to_end()); |
646 |
|
pSysexBuffer->write(pPos, writeNow); |
647 |
|
toWrite -= writeNow; |
648 |
|
pPos += writeNow; |
649 |
|
|
650 |
|
} |
651 |
|
// finally place sysex event into input event queue |
652 |
|
pEventQueue->push(&event); |
653 |
|
} |
654 |
|
else dmsg(1,("Engine: Sysex message too large (%d byte) for input buffer (%d byte)!",Size,SYSEX_BUFFER_SIZE)); |
655 |
|
} |
656 |
|
else dmsg(1,("Engine: Input event queue full!")); |
657 |
|
} |
658 |
|
|
659 |
|
/** |
660 |
* Assigns and triggers a new voice for the respective MIDI key. |
* Assigns and triggers a new voice for the respective MIDI key. |
661 |
* |
* |
662 |
* @param pNoteOnEvent - key, velocity and time stamp of the event |
* @param itNoteOnEvent - key, velocity and time stamp of the event |
663 |
*/ |
*/ |
664 |
void Engine::ProcessNoteOn(Event* pNoteOnEvent) { |
void Engine::ProcessNoteOn(Pool<Event>::Iterator& itNoteOnEvent) { |
665 |
midi_key_info_t* pKey = &pMIDIKeyInfo[pNoteOnEvent->Key]; |
midi_key_info_t* pKey = &pMIDIKeyInfo[itNoteOnEvent->Param.Note.Key]; |
666 |
|
|
667 |
pKey->KeyPressed = true; // the MIDI key was now pressed down |
pKey->KeyPressed = true; // the MIDI key was now pressed down |
668 |
|
|
669 |
// cancel release process of voices on this key if needed |
// cancel release process of voices on this key if needed |
670 |
if (pKey->Active && !SustainPedal) { |
if (pKey->Active && !SustainPedal) { |
671 |
pNoteOnEvent->Type = Event::type_cancel_release; // transform event type |
RTList<Event>::Iterator itCancelReleaseEvent = pKey->pEvents->allocAppend(); |
672 |
pEvents->move(pNoteOnEvent, pKey->pEvents); // move event to the key's own event list |
if (itCancelReleaseEvent) { |
673 |
|
*itCancelReleaseEvent = *itNoteOnEvent; // copy event |
674 |
|
itCancelReleaseEvent->Type = Event::type_cancel_release; // transform event type |
675 |
|
} |
676 |
|
else dmsg(1,("Event pool emtpy!\n")); |
677 |
} |
} |
678 |
|
|
679 |
|
// move note on event to the key's own event list |
680 |
|
RTList<Event>::Iterator itNoteOnEventOnKeyList = itNoteOnEvent.moveToEndOf(pKey->pEvents); |
681 |
|
|
682 |
// allocate and trigger a new voice for the key |
// allocate and trigger a new voice for the key |
683 |
LaunchVoice(pNoteOnEvent); |
LaunchVoice(itNoteOnEventOnKeyList, 0, false, true); |
684 |
} |
} |
685 |
|
|
686 |
/** |
/** |
689 |
* sustain pedal will be released or voice turned inactive by itself (e.g. |
* sustain pedal will be released or voice turned inactive by itself (e.g. |
690 |
* due to completion of sample playback). |
* due to completion of sample playback). |
691 |
* |
* |
692 |
* @param pNoteOffEvent - key, velocity and time stamp of the event |
* @param itNoteOffEvent - key, velocity and time stamp of the event |
693 |
*/ |
*/ |
694 |
void Engine::ProcessNoteOff(Event* pNoteOffEvent) { |
void Engine::ProcessNoteOff(Pool<Event>::Iterator& itNoteOffEvent) { |
695 |
midi_key_info_t* pKey = &pMIDIKeyInfo[pNoteOffEvent->Key]; |
midi_key_info_t* pKey = &pMIDIKeyInfo[itNoteOffEvent->Param.Note.Key]; |
696 |
|
|
697 |
pKey->KeyPressed = false; // the MIDI key was now released |
pKey->KeyPressed = false; // the MIDI key was now released |
698 |
|
|
699 |
// release voices on this key if needed |
// release voices on this key if needed |
700 |
if (pKey->Active && !SustainPedal) { |
if (pKey->Active && !SustainPedal) { |
701 |
pNoteOffEvent->Type = Event::type_release; // transform event type |
itNoteOffEvent->Type = Event::type_release; // transform event type |
702 |
pEvents->move(pNoteOffEvent, pKey->pEvents); // move event to the key's own event list |
} |
703 |
|
|
704 |
|
// move event to the key's own event list |
705 |
|
RTList<Event>::Iterator itNoteOffEventOnKeyList = itNoteOffEvent.moveToEndOf(pKey->pEvents); |
706 |
|
|
707 |
|
// spawn release triggered voice(s) if needed |
708 |
|
if (pKey->ReleaseTrigger) { |
709 |
|
LaunchVoice(itNoteOffEventOnKeyList, 0, true, false); //FIXME: for the moment we don't perform voice stealing for release triggered samples |
710 |
|
pKey->ReleaseTrigger = false; |
711 |
} |
} |
712 |
} |
} |
713 |
|
|
715 |
* Moves pitchbend event from the general (input) event list to the pitch |
* Moves pitchbend event from the general (input) event list to the pitch |
716 |
* event list. |
* event list. |
717 |
* |
* |
718 |
* @param pPitchbendEvent - absolute pitch value and time stamp of the event |
* @param itPitchbendEvent - absolute pitch value and time stamp of the event |
719 |
*/ |
*/ |
720 |
void Engine::ProcessPitchbend(Event* pPitchbendEvent) { |
void Engine::ProcessPitchbend(Pool<Event>::Iterator& itPitchbendEvent) { |
721 |
this->Pitch = pPitchbendEvent->Pitch; // store current pitch value |
this->Pitch = itPitchbendEvent->Param.Pitch.Pitch; // store current pitch value |
722 |
pEvents->move(pPitchbendEvent, pSynthesisEvents[Event::destination_vco]); |
itPitchbendEvent.moveToEndOf(pSynthesisEvents[Event::destination_vco]); |
723 |
} |
} |
724 |
|
|
725 |
/** |
/** |
727 |
* called by the ProcessNoteOn() method and by the voices itself |
* called by the ProcessNoteOn() method and by the voices itself |
728 |
* (e.g. to spawn further voices on the same key for layered sounds). |
* (e.g. to spawn further voices on the same key for layered sounds). |
729 |
* |
* |
730 |
* @param pNoteOnEvent - key, velocity and time stamp of the event |
* @param itNoteOnEvent - key, velocity and time stamp of the event |
731 |
* @param iLayer - layer index for the new voice (optional - only |
* @param iLayer - layer index for the new voice (optional - only |
732 |
* in case of layered sounds of course) |
* in case of layered sounds of course) |
733 |
|
* @param ReleaseTriggerVoice - if new voice is a release triggered voice |
734 |
|
* (optional, default = false) |
735 |
|
* @param VoiceStealing - if voice stealing should be performed |
736 |
|
* when there is no free voice |
737 |
|
* (optional, default = true) |
738 |
|
* @returns pointer to new voice or NULL if there was no free voice or |
739 |
|
* if an error occured while trying to trigger the new voice |
740 |
*/ |
*/ |
741 |
void Engine::LaunchVoice(Event* pNoteOnEvent, int iLayer) { |
Pool<Voice>::Iterator Engine::LaunchVoice(Pool<Event>::Iterator& itNoteOnEvent, int iLayer, bool ReleaseTriggerVoice, bool VoiceStealing) { |
742 |
midi_key_info_t* pKey = &pMIDIKeyInfo[pNoteOnEvent->Key]; |
midi_key_info_t* pKey = &pMIDIKeyInfo[itNoteOnEvent->Param.Note.Key]; |
743 |
|
|
744 |
// allocate a new voice for the key |
// allocate a new voice for the key |
745 |
Voice* pNewVoice = pKey->pActiveVoices->alloc(); |
Pool<Voice>::Iterator itNewVoice = pKey->pActiveVoices->allocAppend(); |
746 |
if (pNewVoice) { |
if (itNewVoice) { |
747 |
// launch the new voice |
// launch the new voice |
748 |
if (pNewVoice->Trigger(pNoteOnEvent, this->Pitch, this->pInstrument, iLayer) < 0) { |
if (itNewVoice->Trigger(itNoteOnEvent, this->Pitch, this->pInstrument, iLayer, ReleaseTriggerVoice, VoiceStealing) < 0) { |
749 |
dmsg(1,("Triggering new voice failed!\n")); |
dmsg(1,("Triggering new voice failed!\n")); |
750 |
pKey->pActiveVoices->free(pNewVoice); |
pKey->pActiveVoices->free(itNewVoice); |
751 |
|
} |
752 |
|
else { // on success |
753 |
|
uint** ppKeyGroup = NULL; |
754 |
|
if (itNewVoice->KeyGroup) { // if this voice / key belongs to a key group |
755 |
|
ppKeyGroup = &ActiveKeyGroups[itNewVoice->KeyGroup]; |
756 |
|
if (*ppKeyGroup) { // if there's already an active key in that key group |
757 |
|
midi_key_info_t* pOtherKey = &pMIDIKeyInfo[**ppKeyGroup]; |
758 |
|
// kill all voices on the (other) key |
759 |
|
RTList<Voice>::Iterator itVoiceToBeKilled = pOtherKey->pActiveVoices->first(); |
760 |
|
RTList<Voice>::Iterator end = pOtherKey->pActiveVoices->end(); |
761 |
|
for (; itVoiceToBeKilled != end; ++itVoiceToBeKilled) { |
762 |
|
if (itVoiceToBeKilled->Type != Voice::type_release_trigger) itVoiceToBeKilled->Kill(itNoteOnEvent); |
763 |
|
} |
764 |
|
} |
765 |
|
} |
766 |
|
if (!pKey->Active) { // mark as active key |
767 |
|
pKey->Active = true; |
768 |
|
pKey->itSelf = pActiveKeys->allocAppend(); |
769 |
|
*pKey->itSelf = itNoteOnEvent->Param.Note.Key; |
770 |
|
} |
771 |
|
if (itNewVoice->KeyGroup) { |
772 |
|
*ppKeyGroup = &*pKey->itSelf; // put key as the (new) active key to its key group |
773 |
|
} |
774 |
|
if (itNewVoice->Type == Voice::type_release_trigger_required) pKey->ReleaseTrigger = true; // mark key for the need of release triggered voice(s) |
775 |
|
return itNewVoice; // success |
776 |
} |
} |
777 |
else if (!pKey->Active) { // mark as active key |
} |
778 |
pKey->Active = true; |
else if (VoiceStealing) { |
779 |
pKey->pSelf = pActiveKeys->alloc(); |
// first, get total amount of required voices (dependant on amount of layers) |
780 |
*pKey->pSelf = pNoteOnEvent->Key; |
::gig::Region* pRegion = pInstrument->GetRegion(itNoteOnEvent->Param.Note.Key); |
781 |
|
if (!pRegion) return Pool<Voice>::Iterator(); // nothing defined for this MIDI key, so no voice needed |
782 |
|
int voicesRequired = pRegion->Layers; |
783 |
|
|
784 |
|
// now steal the (remaining) amount of voices |
785 |
|
for (int i = iLayer; i < voicesRequired; i++) |
786 |
|
StealVoice(itNoteOnEvent); |
787 |
|
|
788 |
|
// put note-on event into voice-stealing queue, so it will be reprocessed after killed voice died |
789 |
|
RTList<Event>::Iterator itStealEvent = pVoiceStealingQueue->allocAppend(); |
790 |
|
if (itStealEvent) { |
791 |
|
*itStealEvent = *itNoteOnEvent; // copy event |
792 |
|
itStealEvent->Param.Note.Layer = iLayer; |
793 |
|
itStealEvent->Param.Note.ReleaseTrigger = ReleaseTriggerVoice; |
794 |
} |
} |
795 |
|
else dmsg(1,("Voice stealing queue full!\n")); |
796 |
} |
} |
797 |
else std::cerr << "No free voice!" << std::endl << std::flush; |
|
798 |
|
return Pool<Voice>::Iterator(); // no free voice or error |
799 |
} |
} |
800 |
|
|
801 |
/** |
/** |
802 |
* Immediately kills the voice given with pVoice (no matter if sustain is |
* Will be called by LaunchVoice() method in case there are no free |
803 |
* pressed or not) and removes it from the MIDI key's list of active voice. |
* voices left. This method will select and kill one old voice for |
804 |
* This method will e.g. be called if a voice went inactive by itself. |
* voice stealing and postpone the note-on event until the selected |
805 |
|
* voice actually died. |
806 |
* |
* |
807 |
* @param pVoice - points to the voice to be killed |
* @param itNoteOnEvent - key, velocity and time stamp of the event |
808 |
*/ |
*/ |
809 |
void Engine::KillVoice(Voice* pVoice) { |
void Engine::StealVoice(Pool<Event>::Iterator& itNoteOnEvent) { |
810 |
if (pVoice) { |
if (!pEventPool->poolIsEmpty()) { |
|
if (pVoice->IsActive()) pVoice->Kill(); |
|
811 |
|
|
812 |
midi_key_info_t* pKey = &pMIDIKeyInfo[pVoice->MIDIKey]; |
RTList<uint>::Iterator iuiOldestKey; |
813 |
|
RTList<Voice>::Iterator itOldestVoice; |
814 |
|
|
815 |
|
// Select one voice for voice stealing |
816 |
|
switch (VOICE_STEAL_ALGORITHM) { |
817 |
|
|
818 |
|
// try to pick the oldest voice on the key where the new |
819 |
|
// voice should be spawned, if there is no voice on that |
820 |
|
// key, or no voice left to kill there, then procceed with |
821 |
|
// 'oldestkey' algorithm |
822 |
|
case voice_steal_algo_keymask: { |
823 |
|
midi_key_info_t* pOldestKey = &pMIDIKeyInfo[itNoteOnEvent->Param.Note.Key]; |
824 |
|
if (itLastStolenVoice) { |
825 |
|
itOldestVoice = itLastStolenVoice; |
826 |
|
++itOldestVoice; |
827 |
|
} |
828 |
|
else { // no voice stolen in this audio fragment cycle yet |
829 |
|
itOldestVoice = pOldestKey->pActiveVoices->first(); |
830 |
|
} |
831 |
|
if (itOldestVoice) { |
832 |
|
iuiOldestKey = pOldestKey->itSelf; |
833 |
|
break; // selection succeeded |
834 |
|
} |
835 |
|
} // no break - intentional ! |
836 |
|
|
837 |
|
// try to pick the oldest voice on the oldest active key |
838 |
|
// (caution: must stay after 'keymask' algorithm !) |
839 |
|
case voice_steal_algo_oldestkey: { |
840 |
|
if (itLastStolenVoice) { |
841 |
|
midi_key_info_t* pOldestKey = &pMIDIKeyInfo[*iuiLastStolenKey]; |
842 |
|
itOldestVoice = itLastStolenVoice; |
843 |
|
++itOldestVoice; |
844 |
|
if (!itOldestVoice) { |
845 |
|
iuiOldestKey = iuiLastStolenKey; |
846 |
|
++iuiOldestKey; |
847 |
|
if (iuiOldestKey) { |
848 |
|
midi_key_info_t* pOldestKey = &pMIDIKeyInfo[*iuiOldestKey]; |
849 |
|
itOldestVoice = pOldestKey->pActiveVoices->first(); |
850 |
|
} |
851 |
|
else { |
852 |
|
dmsg(1,("gig::Engine: Warning, too less voices, even for voice stealing! - Better recompile with higher MAX_AUDIO_VOICES.\n")); |
853 |
|
return; |
854 |
|
} |
855 |
|
} |
856 |
|
else iuiOldestKey = iuiLastStolenKey; |
857 |
|
} |
858 |
|
else { // no voice stolen in this audio fragment cycle yet |
859 |
|
iuiOldestKey = pActiveKeys->first(); |
860 |
|
midi_key_info_t* pOldestKey = &pMIDIKeyInfo[*iuiOldestKey]; |
861 |
|
itOldestVoice = pOldestKey->pActiveVoices->first(); |
862 |
|
} |
863 |
|
break; |
864 |
|
} |
865 |
|
|
866 |
|
// don't steal anything |
867 |
|
case voice_steal_algo_none: |
868 |
|
default: { |
869 |
|
dmsg(1,("No free voice (voice stealing disabled)!\n")); |
870 |
|
return; |
871 |
|
} |
872 |
|
} |
873 |
|
|
874 |
|
//FIXME: can be removed, just a sanity check for debugging |
875 |
|
if (!itOldestVoice->IsActive()) dmsg(1,("gig::Engine: ERROR, tried to steal a voice which was not active !!!\n")); |
876 |
|
|
877 |
|
// now kill the selected voice |
878 |
|
itOldestVoice->Kill(itNoteOnEvent); |
879 |
|
// remember which voice on which key we stole, so we can simply proceed for the next voice stealing |
880 |
|
this->itLastStolenVoice = itOldestVoice; |
881 |
|
this->iuiLastStolenKey = iuiOldestKey; |
882 |
|
} |
883 |
|
else dmsg(1,("Event pool emtpy!\n")); |
884 |
|
} |
885 |
|
|
886 |
|
/** |
887 |
|
* Removes the given voice from the MIDI key's list of active voices. |
888 |
|
* This method will be called when a voice went inactive, e.g. because |
889 |
|
* it finished to playback its sample, finished its release stage or |
890 |
|
* just was killed. |
891 |
|
* |
892 |
|
* @param itVoice - points to the voice to be freed |
893 |
|
*/ |
894 |
|
void Engine::FreeVoice(Pool<Voice>::Iterator& itVoice) { |
895 |
|
if (itVoice) { |
896 |
|
midi_key_info_t* pKey = &pMIDIKeyInfo[itVoice->MIDIKey]; |
897 |
|
|
898 |
|
uint keygroup = itVoice->KeyGroup; |
899 |
|
|
900 |
// free the voice object |
// free the voice object |
901 |
pVoicePool->free(pVoice); |
pVoicePool->free(itVoice); |
902 |
|
|
903 |
// check if there are no voices left on the MIDI key and update the key info if so |
// if no other voices left and member of a key group, remove from key group |
904 |
if (pKey->pActiveVoices->is_empty()) { |
if (pKey->pActiveVoices->isEmpty() && keygroup) { |
905 |
pKey->Active = false; |
uint** ppKeyGroup = &ActiveKeyGroups[keygroup]; |
906 |
pActiveKeys->free(pKey->pSelf); // remove key from list of active keys |
if (*ppKeyGroup == &*pKey->itSelf) *ppKeyGroup = NULL; // remove key from key group |
|
pKey->pSelf = NULL; |
|
|
dmsg(3,("Key has no more voices now\n")); |
|
907 |
} |
} |
908 |
} |
} |
909 |
else std::cerr << "Couldn't release voice! (pVoice == NULL)\n" << std::flush; |
else std::cerr << "Couldn't release voice! (!itVoice)\n" << std::flush; |
910 |
|
} |
911 |
|
|
912 |
|
/** |
913 |
|
* Called when there's no more voice left on a key, this call will |
914 |
|
* update the key info respectively. |
915 |
|
* |
916 |
|
* @param pKey - key which is now inactive |
917 |
|
*/ |
918 |
|
void Engine::FreeKey(midi_key_info_t* pKey) { |
919 |
|
if (pKey->pActiveVoices->isEmpty()) { |
920 |
|
pKey->Active = false; |
921 |
|
pActiveKeys->free(pKey->itSelf); // remove key from list of active keys |
922 |
|
pKey->itSelf = RTList<uint>::Iterator(); |
923 |
|
pKey->ReleaseTrigger = false; |
924 |
|
pKey->pEvents->clear(); |
925 |
|
dmsg(3,("Key has no more voices now\n")); |
926 |
|
} |
927 |
|
else dmsg(1,("gig::Engine: Oops, tried to free a key which contains voices.\n")); |
928 |
} |
} |
929 |
|
|
930 |
/** |
/** |
931 |
* Reacts on supported control change commands (e.g. pitch bend wheel, |
* Reacts on supported control change commands (e.g. pitch bend wheel, |
932 |
* modulation wheel, aftertouch). |
* modulation wheel, aftertouch). |
933 |
* |
* |
934 |
* @param pControlChangeEvent - controller, value and time stamp of the event |
* @param itControlChangeEvent - controller, value and time stamp of the event |
935 |
*/ |
*/ |
936 |
void Engine::ProcessControlChange(Event* pControlChangeEvent) { |
void Engine::ProcessControlChange(Pool<Event>::Iterator& itControlChangeEvent) { |
937 |
dmsg(4,("Engine::ContinuousController cc=%d v=%d\n", pControlChangeEvent->Controller, pControlChangeEvent->Value)); |
dmsg(4,("Engine::ContinuousController cc=%d v=%d\n", itControlChangeEvent->Param.CC.Controller, itControlChangeEvent->Param.CC.Value)); |
938 |
|
|
939 |
switch (pControlChangeEvent->Controller) { |
switch (itControlChangeEvent->Param.CC.Controller) { |
940 |
case 64: { |
case 64: { |
941 |
if (pControlChangeEvent->Value >= 64 && !SustainPedal) { |
if (itControlChangeEvent->Param.CC.Value >= 64 && !SustainPedal) { |
942 |
dmsg(4,("PEDAL DOWN\n")); |
dmsg(4,("PEDAL DOWN\n")); |
943 |
SustainPedal = true; |
SustainPedal = true; |
944 |
|
|
945 |
// cancel release process of voices if necessary |
// cancel release process of voices if necessary |
946 |
uint* piKey = pActiveKeys->first(); |
RTList<uint>::Iterator iuiKey = pActiveKeys->first(); |
947 |
if (piKey) { |
if (iuiKey) { |
948 |
pControlChangeEvent->Type = Event::type_cancel_release; // transform event type |
itControlChangeEvent->Type = Event::type_cancel_release; // transform event type |
949 |
while (piKey) { |
while (iuiKey) { |
950 |
midi_key_info_t* pKey = &pMIDIKeyInfo[*piKey]; |
midi_key_info_t* pKey = &pMIDIKeyInfo[*iuiKey]; |
951 |
pActiveKeys->set_current(piKey); |
++iuiKey; |
|
piKey = pActiveKeys->next(); |
|
952 |
if (!pKey->KeyPressed) { |
if (!pKey->KeyPressed) { |
953 |
Event* pNewEvent = pKey->pEvents->alloc(); |
RTList<Event>::Iterator itNewEvent = pKey->pEvents->allocAppend(); |
954 |
if (pNewEvent) *pNewEvent = *pControlChangeEvent; // copy event to the key's own event list |
if (itNewEvent) *itNewEvent = *itControlChangeEvent; // copy event to the key's own event list |
955 |
else dmsg(1,("Event pool emtpy!\n")); |
else dmsg(1,("Event pool emtpy!\n")); |
956 |
} |
} |
957 |
} |
} |
958 |
} |
} |
959 |
} |
} |
960 |
if (pControlChangeEvent->Value < 64 && SustainPedal) { |
if (itControlChangeEvent->Param.CC.Value < 64 && SustainPedal) { |
961 |
dmsg(4,("PEDAL UP\n")); |
dmsg(4,("PEDAL UP\n")); |
962 |
SustainPedal = false; |
SustainPedal = false; |
963 |
|
|
964 |
// release voices if their respective key is not pressed |
// release voices if their respective key is not pressed |
965 |
uint* piKey = pActiveKeys->first(); |
RTList<uint>::Iterator iuiKey = pActiveKeys->first(); |
966 |
if (piKey) { |
if (iuiKey) { |
967 |
pControlChangeEvent->Type = Event::type_release; // transform event type |
itControlChangeEvent->Type = Event::type_release; // transform event type |
968 |
while (piKey) { |
while (iuiKey) { |
969 |
midi_key_info_t* pKey = &pMIDIKeyInfo[*piKey]; |
midi_key_info_t* pKey = &pMIDIKeyInfo[*iuiKey]; |
970 |
pActiveKeys->set_current(piKey); |
++iuiKey; |
|
piKey = pActiveKeys->next(); |
|
971 |
if (!pKey->KeyPressed) { |
if (!pKey->KeyPressed) { |
972 |
Event* pNewEvent = pKey->pEvents->alloc(); |
RTList<Event>::Iterator itNewEvent = pKey->pEvents->allocAppend(); |
973 |
if (pNewEvent) *pNewEvent = *pControlChangeEvent; // copy event to the key's own event list |
if (itNewEvent) *itNewEvent = *itControlChangeEvent; // copy event to the key's own event list |
974 |
else dmsg(1,("Event pool emtpy!\n")); |
else dmsg(1,("Event pool emtpy!\n")); |
975 |
} |
} |
976 |
} |
} |
981 |
} |
} |
982 |
|
|
983 |
// update controller value in the engine's controller table |
// update controller value in the engine's controller table |
984 |
ControllerTable[pControlChangeEvent->Controller] = pControlChangeEvent->Value; |
ControllerTable[itControlChangeEvent->Param.CC.Controller] = itControlChangeEvent->Param.CC.Value; |
985 |
|
|
986 |
// 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 |
987 |
pEvents->move(pControlChangeEvent, pCCEvents); |
itControlChangeEvent.moveToEndOf(pCCEvents); |
988 |
|
} |
989 |
|
|
990 |
|
/** |
991 |
|
* Reacts on MIDI system exclusive messages. |
992 |
|
* |
993 |
|
* @param itSysexEvent - sysex data size and time stamp of the sysex event |
994 |
|
*/ |
995 |
|
void Engine::ProcessSysex(Pool<Event>::Iterator& itSysexEvent) { |
996 |
|
RingBuffer<uint8_t>::NonVolatileReader reader = pSysexBuffer->get_non_volatile_reader(); |
997 |
|
|
998 |
|
uint8_t exclusive_status, id; |
999 |
|
if (!reader.pop(&exclusive_status)) goto free_sysex_data; |
1000 |
|
if (!reader.pop(&id)) goto free_sysex_data; |
1001 |
|
if (exclusive_status != 0xF0) goto free_sysex_data; |
1002 |
|
|
1003 |
|
switch (id) { |
1004 |
|
case 0x41: { // Roland |
1005 |
|
uint8_t device_id, model_id, cmd_id; |
1006 |
|
if (!reader.pop(&device_id)) goto free_sysex_data; |
1007 |
|
if (!reader.pop(&model_id)) goto free_sysex_data; |
1008 |
|
if (!reader.pop(&cmd_id)) goto free_sysex_data; |
1009 |
|
if (model_id != 0x42 /*GS*/) goto free_sysex_data; |
1010 |
|
if (cmd_id != 0x12 /*DT1*/) goto free_sysex_data; |
1011 |
|
|
1012 |
|
// command address |
1013 |
|
uint8_t addr[3]; // 2 byte addr MSB, followed by 1 byte addr LSB) |
1014 |
|
const RingBuffer<uint8_t>::NonVolatileReader checksum_reader = reader; // so we can calculate the check sum later |
1015 |
|
if (reader.read(&addr[0], 3) != 3) goto free_sysex_data; |
1016 |
|
if (addr[0] == 0x40 && addr[1] == 0x00) { // System Parameters |
1017 |
|
} |
1018 |
|
else if (addr[0] == 0x40 && addr[1] == 0x01) { // Common Parameters |
1019 |
|
} |
1020 |
|
else if (addr[0] == 0x40 && (addr[1] & 0xf0) == 0x10) { // Part Parameters (1) |
1021 |
|
switch (addr[3]) { |
1022 |
|
case 0x40: { // scale tuning |
1023 |
|
uint8_t scale_tunes[12]; // detuning of all 12 semitones of an octave |
1024 |
|
if (reader.read(&scale_tunes[0], 12) != 12) goto free_sysex_data; |
1025 |
|
uint8_t checksum; |
1026 |
|
if (!reader.pop(&checksum)) goto free_sysex_data; |
1027 |
|
if (GSCheckSum(checksum_reader, 12) != checksum) goto free_sysex_data; |
1028 |
|
for (int i = 0; i < 12; i++) scale_tunes[i] -= 64; |
1029 |
|
AdjustScale((int8_t*) scale_tunes); |
1030 |
|
break; |
1031 |
|
} |
1032 |
|
} |
1033 |
|
} |
1034 |
|
else if (addr[0] == 0x40 && (addr[1] & 0xf0) == 0x20) { // Part Parameters (2) |
1035 |
|
} |
1036 |
|
else if (addr[0] == 0x41) { // Drum Setup Parameters |
1037 |
|
} |
1038 |
|
break; |
1039 |
|
} |
1040 |
|
} |
1041 |
|
|
1042 |
|
free_sysex_data: // finally free sysex data |
1043 |
|
pSysexBuffer->increment_read_ptr(itSysexEvent->Param.Sysex.Size); |
1044 |
|
} |
1045 |
|
|
1046 |
|
/** |
1047 |
|
* Calculates the Roland GS sysex check sum. |
1048 |
|
* |
1049 |
|
* @param AddrReader - reader which currently points to the first GS |
1050 |
|
* command address byte of the GS sysex message in |
1051 |
|
* question |
1052 |
|
* @param DataSize - size of the GS message data (in bytes) |
1053 |
|
*/ |
1054 |
|
uint8_t Engine::GSCheckSum(const RingBuffer<uint8_t>::NonVolatileReader AddrReader, uint DataSize) { |
1055 |
|
RingBuffer<uint8_t>::NonVolatileReader reader = AddrReader; |
1056 |
|
uint bytes = 3 /*addr*/ + DataSize; |
1057 |
|
uint8_t addr_and_data[bytes]; |
1058 |
|
reader.read(&addr_and_data[0], bytes); |
1059 |
|
uint8_t sum = 0; |
1060 |
|
for (uint i = 0; i < bytes; i++) sum += addr_and_data[i]; |
1061 |
|
return 128 - sum % 128; |
1062 |
|
} |
1063 |
|
|
1064 |
|
/** |
1065 |
|
* Allows to tune each of the twelve semitones of an octave. |
1066 |
|
* |
1067 |
|
* @param ScaleTunes - detuning of all twelve semitones (in cents) |
1068 |
|
*/ |
1069 |
|
void Engine::AdjustScale(int8_t ScaleTunes[12]) { |
1070 |
|
memcpy(&this->ScaleTuning[0], &ScaleTunes[0], 12); //TODO: currently not sample accurate |
1071 |
} |
} |
1072 |
|
|
1073 |
/** |
/** |
1174 |
} |
} |
1175 |
|
|
1176 |
String Engine::Version() { |
String Engine::Version() { |
1177 |
String s = "$Revision: 1.9 $"; |
String s = "$Revision: 1.21 $"; |
1178 |
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 |
1179 |
} |
} |
1180 |
|
|