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#include "Engine.h" |
#include "Engine.h" |
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#if defined(__APPLE__) |
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# include <stdlib.h> |
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#else |
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# include <malloc.h> |
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#endif |
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namespace LinuxSampler { namespace gig { |
namespace LinuxSampler { namespace gig { |
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InstrumentResourceManager Engine::instruments; |
InstrumentResourceManager Engine::instruments; |
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} |
} |
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pVoicePool->clear(); |
pVoicePool->clear(); |
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pSynthesisParameters[0] = NULL; // we allocate when an audio device is connected |
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pBasicFilterParameters = NULL; |
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pMainFilterParameters = NULL; |
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ResetInternal(); |
ResetInternal(); |
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ResetScaleTuning(); |
ResetScaleTuning(); |
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} |
} |
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delete pVoicePool; |
delete pVoicePool; |
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} |
} |
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if (pEventGenerator) delete pEventGenerator; |
if (pEventGenerator) delete pEventGenerator; |
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if (pMainFilterParameters) delete[] pMainFilterParameters; |
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if (pBasicFilterParameters) delete[] pBasicFilterParameters; |
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if (pSynthesisParameters[0]) free(pSynthesisParameters[0]); |
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if (pVoiceStealingQueue) delete pVoiceStealingQueue; |
if (pVoiceStealingQueue) delete pVoiceStealingQueue; |
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if (pSysexBuffer) delete pSysexBuffer; |
if (pSysexBuffer) delete pSysexBuffer; |
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EngineFactory::Destroy(this); |
EngineFactory::Destroy(this); |
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// delete all input events |
// delete all input events |
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pEventQueue->init(); |
pEventQueue->init(); |
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pSysexBuffer->init(); |
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} |
} |
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/** |
/** |
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// lower minimum release time |
// lower minimum release time |
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const float minReleaseTime = (float) MaxSamplesPerCycle / (float) SampleRate; |
const float minReleaseTime = (float) MaxSamplesPerCycle / (float) SampleRate; |
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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()) { |
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iterVoice->pEG1->CalculateFadeOutCoeff(minReleaseTime, SampleRate); |
iterVoice->EG1.CalculateFadeOutCoeff(minReleaseTime, SampleRate); |
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} |
} |
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pVoicePool->clear(); |
pVoicePool->clear(); |
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} |
} |
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if (pEventGenerator) delete pEventGenerator; |
if (pEventGenerator) delete pEventGenerator; |
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pEventGenerator = new EventGenerator(pAudioOut->SampleRate()); |
pEventGenerator = new EventGenerator(pAudioOut->SampleRate()); |
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// (re)allocate synthesis parameter matrix |
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if (pSynthesisParameters[0]) free(pSynthesisParameters[0]); |
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#if defined(__APPLE__) |
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pSynthesisParameters[0] = (float *) malloc(Event::destination_count * sizeof(float) * pAudioOut->MaxSamplesPerCycle()); |
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#else |
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pSynthesisParameters[0] = (float *) memalign(16,(Event::destination_count * sizeof(float) * pAudioOut->MaxSamplesPerCycle())); |
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#endif |
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for (int dst = 1; dst < Event::destination_count; dst++) |
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pSynthesisParameters[dst] = pSynthesisParameters[dst - 1] + pAudioOut->MaxSamplesPerCycle(); |
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// (re)allocate biquad filter parameter sequence |
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if (pBasicFilterParameters) delete[] pBasicFilterParameters; |
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if (pMainFilterParameters) delete[] pMainFilterParameters; |
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pBasicFilterParameters = new biquad_param_t[pAudioOut->MaxSamplesPerCycle()]; |
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pMainFilterParameters = new biquad_param_t[pAudioOut->MaxSamplesPerCycle()]; |
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dmsg(1,("Starting disk thread...")); |
dmsg(1,("Starting disk thread...")); |
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pDiskThread->StartThread(); |
pDiskThread->StartThread(); |
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dmsg(1,("OK\n")); |
dmsg(1,("OK\n")); |
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* this audio fragment cycle |
* this audio fragment cycle |
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*/ |
*/ |
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void Engine::RenderActiveVoices(EngineChannel* pEngineChannel, uint Samples) { |
void Engine::RenderActiveVoices(EngineChannel* pEngineChannel, uint Samples) { |
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#if !CONFIG_PROCESS_MUTED_CHANNELS |
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if (pEngineChannel->GetMute()) return; // skip if sampler channel is muted |
if (pEngineChannel->GetMute()) return; // skip if sampler channel is muted |
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#endif |
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RTList<uint>::Iterator iuiKey = pEngineChannel->pActiveKeys->first(); |
RTList<uint>::Iterator iuiKey = pEngineChannel->pActiveKeys->first(); |
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RTList<uint>::Iterator end = pEngineChannel->pActiveKeys->end(); |
RTList<uint>::Iterator end = pEngineChannel->pActiveKeys->end(); |
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* @param itNoteOnEvent - key, velocity and time stamp of the event |
* @param itNoteOnEvent - key, velocity and time stamp of the event |
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*/ |
*/ |
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void Engine::ProcessNoteOn(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itNoteOnEvent) { |
void Engine::ProcessNoteOn(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itNoteOnEvent) { |
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if (pEngineChannel->GetMute()) return; // skip if sampler channel is muted |
#if !CONFIG_PROCESS_MUTED_CHANNELS |
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if (pEngineChannel->GetMute()) return; // skip if sampler channel is muted |
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#endif |
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const int key = itNoteOnEvent->Param.Note.Key; |
const int key = itNoteOnEvent->Param.Note.Key; |
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* @param itNoteOffEvent - key, velocity and time stamp of the event |
* @param itNoteOffEvent - key, velocity and time stamp of the event |
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*/ |
*/ |
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void Engine::ProcessNoteOff(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itNoteOffEvent) { |
void Engine::ProcessNoteOff(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itNoteOffEvent) { |
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#if !CONFIG_PROCESS_MUTED_CHANNELS |
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if (pEngineChannel->GetMute()) return; // skip if sampler channel is muted |
if (pEngineChannel->GetMute()) return; // skip if sampler channel is muted |
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#endif |
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midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[itNoteOffEvent->Param.Note.Key]; |
midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[itNoteOffEvent->Param.Note.Key]; |
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pKey->KeyPressed = false; // the MIDI key was now released |
pKey->KeyPressed = false; // the MIDI key was now released |
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} |
} |
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/** |
/** |
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* Moves pitchbend event from the general (input) event list to the pitch |
* Moves pitchbend event from the general (input) event list to the engine |
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* event list. |
* channel's event list. It will actually processed later by the |
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* respective voice. |
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* |
* |
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* @param pEngineChannel - engine channel on which this event occured on |
* @param pEngineChannel - engine channel on which this event occured on |
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* @param itPitchbendEvent - absolute pitch value and time stamp of the event |
* @param itPitchbendEvent - absolute pitch value and time stamp of the event |
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*/ |
*/ |
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void Engine::ProcessPitchbend(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itPitchbendEvent) { |
void Engine::ProcessPitchbend(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itPitchbendEvent) { |
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pEngineChannel->Pitch = itPitchbendEvent->Param.Pitch.Pitch; // store current pitch value |
pEngineChannel->Pitch = itPitchbendEvent->Param.Pitch.Pitch; // store current pitch value |
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itPitchbendEvent.moveToEndOf(pEngineChannel->pSynthesisEvents[Event::destination_vco]); |
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} |
} |
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/** |
/** |
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// update controller value in the engine channel's controller table |
// update controller value in the engine channel's controller table |
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pEngineChannel->ControllerTable[itControlChangeEvent->Param.CC.Controller] = itControlChangeEvent->Param.CC.Value; |
pEngineChannel->ControllerTable[itControlChangeEvent->Param.CC.Controller] = itControlChangeEvent->Param.CC.Value; |
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// move event from the unsorted event list to the control change event list |
switch (itControlChangeEvent->Param.CC.Controller) { |
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Pool<Event>::Iterator itControlChangeEventOnCCList = itControlChangeEvent.moveToEndOf(pEngineChannel->pCCEvents); |
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switch (itControlChangeEventOnCCList->Param.CC.Controller) { |
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case 7: { // volume |
case 7: { // volume |
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//TODO: not sample accurate yet |
//TODO: not sample accurate yet |
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pEngineChannel->GlobalVolume = (float) itControlChangeEventOnCCList->Param.CC.Value / 127.0f; |
pEngineChannel->GlobalVolume = (float) itControlChangeEvent->Param.CC.Value / 127.0f; |
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pEngineChannel->bStatusChanged = true; // engine channel status has changed, so set notify flag |
pEngineChannel->bStatusChanged = true; // engine channel status has changed, so set notify flag |
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break; |
break; |
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} |
} |
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case 10: { // panpot |
case 10: { // panpot |
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//TODO: not sample accurate yet |
//TODO: not sample accurate yet |
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const int pan = (int) itControlChangeEventOnCCList->Param.CC.Value - 64; |
const int pan = (int) itControlChangeEvent->Param.CC.Value - 64; |
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pEngineChannel->GlobalPanLeft = 1.0f - float(RTMath::Max(pan, 0)) / 63.0f; |
pEngineChannel->GlobalPanLeft = 1.0f - float(RTMath::Max(pan, 0)) / 63.0f; |
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pEngineChannel->GlobalPanRight = 1.0f - float(RTMath::Min(pan, 0)) / -64.0f; |
pEngineChannel->GlobalPanRight = 1.0f - float(RTMath::Min(pan, 0)) / -64.0f; |
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break; |
break; |
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} |
} |
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case 64: { // sustain |
case 64: { // sustain |
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if (itControlChangeEventOnCCList->Param.CC.Value >= 64 && !pEngineChannel->SustainPedal) { |
if (itControlChangeEvent->Param.CC.Value >= 64 && !pEngineChannel->SustainPedal) { |
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dmsg(4,("PEDAL DOWN\n")); |
dmsg(4,("PEDAL DOWN\n")); |
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pEngineChannel->SustainPedal = true; |
pEngineChannel->SustainPedal = true; |
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#if !CONFIG_PROCESS_MUTED_CHANNELS |
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if (pEngineChannel->GetMute()) return; // skip if sampler channel is muted |
if (pEngineChannel->GetMute()) return; // skip if sampler channel is muted |
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#endif |
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// cancel release process of voices if necessary |
// cancel release process of voices if necessary |
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RTList<uint>::Iterator iuiKey = pEngineChannel->pActiveKeys->first(); |
RTList<uint>::Iterator iuiKey = pEngineChannel->pActiveKeys->first(); |
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if (!pKey->KeyPressed) { |
if (!pKey->KeyPressed) { |
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RTList<Event>::Iterator itNewEvent = pKey->pEvents->allocAppend(); |
RTList<Event>::Iterator itNewEvent = pKey->pEvents->allocAppend(); |
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if (itNewEvent) { |
if (itNewEvent) { |
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*itNewEvent = *itControlChangeEventOnCCList; // copy event to the key's own event list |
*itNewEvent = *itControlChangeEvent; // copy event to the key's own event list |
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itNewEvent->Type = Event::type_cancel_release; // transform event type |
itNewEvent->Type = Event::type_cancel_release; // transform event type |
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} |
} |
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else dmsg(1,("Event pool emtpy!\n")); |
else dmsg(1,("Event pool emtpy!\n")); |
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} |
} |
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} |
} |
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} |
} |
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if (itControlChangeEventOnCCList->Param.CC.Value < 64 && pEngineChannel->SustainPedal) { |
if (itControlChangeEvent->Param.CC.Value < 64 && pEngineChannel->SustainPedal) { |
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dmsg(4,("PEDAL UP\n")); |
dmsg(4,("PEDAL UP\n")); |
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pEngineChannel->SustainPedal = false; |
pEngineChannel->SustainPedal = false; |
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#if !CONFIG_PROCESS_MUTED_CHANNELS |
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if (pEngineChannel->GetMute()) return; // skip if sampler channel is muted |
if (pEngineChannel->GetMute()) return; // skip if sampler channel is muted |
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#endif |
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// release voices if their respective key is not pressed |
// release voices if their respective key is not pressed |
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RTList<uint>::Iterator iuiKey = pEngineChannel->pActiveKeys->first(); |
RTList<uint>::Iterator iuiKey = pEngineChannel->pActiveKeys->first(); |
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if (!pKey->KeyPressed) { |
if (!pKey->KeyPressed) { |
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RTList<Event>::Iterator itNewEvent = pKey->pEvents->allocAppend(); |
RTList<Event>::Iterator itNewEvent = pKey->pEvents->allocAppend(); |
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if (itNewEvent) { |
if (itNewEvent) { |
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*itNewEvent = *itControlChangeEventOnCCList; // copy event to the key's own event list |
*itNewEvent = *itControlChangeEvent; // copy event to the key's own event list |
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itNewEvent->Type = Event::type_release; // transform event type |
itNewEvent->Type = Event::type_release; // transform event type |
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} |
} |
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else dmsg(1,("Event pool emtpy!\n")); |
else dmsg(1,("Event pool emtpy!\n")); |
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// Channel Mode Messages |
// Channel Mode Messages |
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case 120: { // all sound off |
case 120: { // all sound off |
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KillAllVoices(pEngineChannel, itControlChangeEventOnCCList); |
KillAllVoices(pEngineChannel, itControlChangeEvent); |
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break; |
break; |
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} |
} |
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case 121: { // reset all controllers |
case 121: { // reset all controllers |
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break; |
break; |
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} |
} |
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case 123: { // all notes off |
case 123: { // all notes off |
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ReleaseAllVoices(pEngineChannel, itControlChangeEventOnCCList); |
ReleaseAllVoices(pEngineChannel, itControlChangeEvent); |
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break; |
break; |
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} |
} |
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} |
} |
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} |
} |
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} |
} |
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/** |
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* Initialize the parameter sequence for the modulation destination given by |
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* by 'dst' with the constant value given by val. |
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*/ |
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void Engine::ResetSynthesisParameters(Event::destination_t dst, float val) { |
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int maxsamples = pAudioOutputDevice->MaxSamplesPerCycle(); |
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float* m = &pSynthesisParameters[dst][0]; |
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for (int i = 0; i < maxsamples; i += 4) { |
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m[i] = val; |
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m[i+1] = val; |
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m[i+2] = val; |
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m[i+3] = val; |
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} |
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} |
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uint Engine::VoiceCount() { |
uint Engine::VoiceCount() { |
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return ActiveVoiceCount; |
return ActiveVoiceCount; |
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} |
} |
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} |
} |
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String Engine::Version() { |
String Engine::Version() { |
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String s = "$Revision: 1.50 $"; |
String s = "$Revision: 1.54 $"; |
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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 |
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} |
} |
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