29 |
pMIDIKeyInfo = new midi_key_info_t[128]; |
pMIDIKeyInfo = new midi_key_info_t[128]; |
30 |
pEngine = NULL; |
pEngine = NULL; |
31 |
pInstrument = NULL; |
pInstrument = NULL; |
32 |
|
pEvents = NULL; // we allocate when we retrieve the right Engine object |
33 |
|
pCCEvents = NULL; // we allocate when we retrieve the right Engine object |
34 |
pEventQueue = new RingBuffer<Event>(MAX_EVENTS_PER_FRAGMENT, 0); |
pEventQueue = new RingBuffer<Event>(MAX_EVENTS_PER_FRAGMENT, 0); |
35 |
pActiveKeys = new Pool<uint>(128); |
pActiveKeys = new Pool<uint>(128); |
36 |
for (uint i = 0; i < 128; i++) { |
for (uint i = 0; i < 128; i++) { |
41 |
pMIDIKeyInfo[i].pEvents = NULL; // we allocate when we retrieve the right Engine object |
pMIDIKeyInfo[i].pEvents = NULL; // we allocate when we retrieve the right Engine object |
42 |
pMIDIKeyInfo[i].RoundRobinIndex = 0; |
pMIDIKeyInfo[i].RoundRobinIndex = 0; |
43 |
} |
} |
44 |
|
for (uint i = 0; i < Event::destination_count; i++) { |
45 |
|
pSynthesisEvents[i] = NULL; // we allocate when we retrieve the right Engine object |
46 |
|
} |
47 |
InstrumentIdx = -1; |
InstrumentIdx = -1; |
48 |
InstrumentStat = -1; |
InstrumentStat = -1; |
49 |
AudioDeviceChannelLeft = -1; |
AudioDeviceChannelLeft = -1; |
51 |
} |
} |
52 |
|
|
53 |
EngineChannel::~EngineChannel() { |
EngineChannel::~EngineChannel() { |
54 |
|
DisconnectAudioOutputDevice(); |
55 |
if (pInstrument) Engine::instruments.HandBack(pInstrument, this); |
if (pInstrument) Engine::instruments.HandBack(pInstrument, this); |
|
for (uint i = 0; i < 128; i++) { |
|
|
if (pMIDIKeyInfo[i].pActiveVoices) { |
|
|
pMIDIKeyInfo[i].pActiveVoices->clear(); |
|
|
delete pMIDIKeyInfo[i].pActiveVoices; |
|
|
} |
|
|
if (pMIDIKeyInfo[i].pEvents) { |
|
|
pMIDIKeyInfo[i].pEvents->clear(); |
|
|
delete pMIDIKeyInfo[i].pEvents; |
|
|
} |
|
|
} |
|
56 |
if (pEventQueue) delete pEventQueue; |
if (pEventQueue) delete pEventQueue; |
57 |
if (pActiveKeys) delete pActiveKeys; |
if (pActiveKeys) delete pActiveKeys; |
58 |
if (pMIDIKeyInfo) delete[] pMIDIKeyInfo; |
if (pMIDIKeyInfo) delete[] pMIDIKeyInfo; |
72 |
// set all MIDI controller values to zero |
// set all MIDI controller values to zero |
73 |
memset(ControllerTable, 0x00, 128); |
memset(ControllerTable, 0x00, 128); |
74 |
|
|
|
// reset voice stealing parameters |
|
|
itLastStolenVoice = RTList<Voice>::Iterator(); |
|
|
iuiLastStolenKey = RTList<uint>::Iterator(); |
|
|
|
|
75 |
// reset key info |
// reset key info |
76 |
for (uint i = 0; i < 128; i++) { |
for (uint i = 0; i < 128; i++) { |
77 |
if (pMIDIKeyInfo[i].pActiveVoices) |
if (pMIDIKeyInfo[i].pActiveVoices) |
210 |
} |
} |
211 |
|
|
212 |
void EngineChannel::Connect(AudioOutputDevice* pAudioOut) { |
void EngineChannel::Connect(AudioOutputDevice* pAudioOut) { |
213 |
if (pEngine && pEngine->pAudioOutputDevice != pAudioOut) { |
if (pEngine) { |
214 |
|
if (pEngine->pAudioOutputDevice == pAudioOut) return; |
215 |
DisconnectAudioOutputDevice(); |
DisconnectAudioOutputDevice(); |
216 |
} |
} |
217 |
pEngine = Engine::AcquireEngine(this, pAudioOut); |
pEngine = Engine::AcquireEngine(this, pAudioOut); |
218 |
ResetInternal(); |
ResetInternal(); |
219 |
|
pEvents = new RTList<Event>(pEngine->pEventPool); |
220 |
|
pCCEvents = new RTList<Event>(pEngine->pEventPool); |
221 |
|
for (uint i = 0; i < Event::destination_count; i++) { |
222 |
|
pSynthesisEvents[i] = new RTList<Event>(pEngine->pEventPool); |
223 |
|
} |
224 |
for (uint i = 0; i < 128; i++) { |
for (uint i = 0; i < 128; i++) { |
225 |
pMIDIKeyInfo[i].pActiveVoices = new RTList<Voice>(pEngine->pVoicePool); |
pMIDIKeyInfo[i].pActiveVoices = new RTList<Voice>(pEngine->pVoicePool); |
226 |
pMIDIKeyInfo[i].pEvents = new RTList<Event>(pEngine->pEventPool); |
pMIDIKeyInfo[i].pEvents = new RTList<Event>(pEngine->pEventPool); |
234 |
void EngineChannel::DisconnectAudioOutputDevice() { |
void EngineChannel::DisconnectAudioOutputDevice() { |
235 |
if (pEngine) { // if clause to prevent disconnect loops |
if (pEngine) { // if clause to prevent disconnect loops |
236 |
ResetInternal(); |
ResetInternal(); |
237 |
|
if (pEvents) { |
238 |
|
delete pEvents; |
239 |
|
pEvents = NULL; |
240 |
|
} |
241 |
|
if (pCCEvents) { |
242 |
|
delete pCCEvents; |
243 |
|
pCCEvents = NULL; |
244 |
|
} |
245 |
for (uint i = 0; i < 128; i++) { |
for (uint i = 0; i < 128; i++) { |
246 |
if (pMIDIKeyInfo[i].pActiveVoices) { |
if (pMIDIKeyInfo[i].pActiveVoices) { |
247 |
delete pMIDIKeyInfo[i].pActiveVoices; |
delete pMIDIKeyInfo[i].pActiveVoices; |
252 |
pMIDIKeyInfo[i].pEvents = NULL; |
pMIDIKeyInfo[i].pEvents = NULL; |
253 |
} |
} |
254 |
} |
} |
255 |
|
for (uint i = 0; i < Event::destination_count; i++) { |
256 |
|
if (pSynthesisEvents[i]) { |
257 |
|
delete pSynthesisEvents[i]; |
258 |
|
pSynthesisEvents[i] = NULL; |
259 |
|
} |
260 |
|
} |
261 |
Engine* oldEngine = pEngine; |
Engine* oldEngine = pEngine; |
262 |
AudioOutputDevice* oldAudioDevice = pEngine->pAudioOutputDevice; |
AudioOutputDevice* oldAudioDevice = pEngine->pAudioOutputDevice; |
263 |
pEngine = NULL; |
pEngine = NULL; |
371 |
} |
} |
372 |
} |
} |
373 |
|
|
374 |
|
void EngineChannel::ClearEventLists() { |
375 |
|
pEvents->clear(); |
376 |
|
pCCEvents->clear(); |
377 |
|
for (uint i = 0; i < Event::destination_count; i++) { |
378 |
|
pSynthesisEvents[i]->clear(); |
379 |
|
} |
380 |
|
// empty MIDI key specific event lists |
381 |
|
{ |
382 |
|
RTList<uint>::Iterator iuiKey = pActiveKeys->first(); |
383 |
|
RTList<uint>::Iterator end = pActiveKeys->end(); |
384 |
|
for(; iuiKey != end; ++iuiKey) { |
385 |
|
pMIDIKeyInfo[*iuiKey].pEvents->clear(); // free all events on the key |
386 |
|
} |
387 |
|
} |
388 |
|
} |
389 |
|
|
390 |
|
/** |
391 |
|
* Copy all events from the engine channel's input event queue buffer to |
392 |
|
* the internal event list. This will be done at the beginning of each |
393 |
|
* audio cycle (that is each RenderAudio() call) to distinguish all |
394 |
|
* events which have to be processed in the current audio cycle. Each |
395 |
|
* EngineChannel has it's own input event queue for the common channel |
396 |
|
* specific events (like NoteOn, NoteOff and ControlChange events). |
397 |
|
* Beside that, the engine also has a input event queue for global |
398 |
|
* events (usually SysEx messages). |
399 |
|
* |
400 |
|
* @param Samples - number of sample points to be processed in the |
401 |
|
* current audio cycle |
402 |
|
*/ |
403 |
|
void EngineChannel::ImportEvents(uint Samples) { |
404 |
|
RingBuffer<Event>::NonVolatileReader eventQueueReader = pEventQueue->get_non_volatile_reader(); |
405 |
|
Event* pEvent; |
406 |
|
while (true) { |
407 |
|
// get next event from input event queue |
408 |
|
if (!(pEvent = eventQueueReader.pop())) break; |
409 |
|
// if younger event reached, ignore that and all subsequent ones for now |
410 |
|
if (pEvent->FragmentPos() >= Samples) { |
411 |
|
eventQueueReader--; |
412 |
|
dmsg(2,("Younger Event, pos=%d ,Samples=%d!\n",pEvent->FragmentPos(),Samples)); |
413 |
|
pEvent->ResetFragmentPos(); |
414 |
|
break; |
415 |
|
} |
416 |
|
// copy event to internal event list |
417 |
|
if (pEvents->poolIsEmpty()) { |
418 |
|
dmsg(1,("Event pool emtpy!\n")); |
419 |
|
break; |
420 |
|
} |
421 |
|
*pEvents->allocAppend() = *pEvent; |
422 |
|
} |
423 |
|
eventQueueReader.free(); // free all copied events from input queue |
424 |
|
} |
425 |
|
|
426 |
float EngineChannel::Volume() { |
float EngineChannel::Volume() { |
427 |
return GlobalVolume; |
return GlobalVolume; |
428 |
} |
} |