27 |
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28 |
namespace LinuxSampler { namespace gig { |
namespace LinuxSampler { namespace gig { |
29 |
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// TODO: no support for crossfades yet |
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30 |
const float Voice::FILTER_CUTOFF_COEFF(CalculateFilterCutoffCoeff()); |
const float Voice::FILTER_CUTOFF_COEFF(CalculateFilterCutoffCoeff()); |
31 |
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32 |
const int Voice::FILTER_UPDATE_MASK(CalculateFilterUpdateMask()); |
const int Voice::FILTER_UPDATE_MASK(CalculateFilterUpdateMask()); |
103 |
* Initializes and triggers the voice, a disk stream will be launched if |
* Initializes and triggers the voice, a disk stream will be launched if |
104 |
* needed. |
* needed. |
105 |
* |
* |
106 |
* @param pNoteOnEvent - event that caused triggering of this voice |
* @param itNoteOnEvent - event that caused triggering of this voice |
107 |
* @param PitchBend - MIDI detune factor (-8192 ... +8191) |
* @param PitchBend - MIDI detune factor (-8192 ... +8191) |
108 |
* @param pInstrument - points to the loaded instrument which provides sample wave(s) and articulation data |
* @param pInstrument - points to the loaded instrument which provides sample wave(s) and articulation data |
109 |
* @param iLayer - layer number this voice refers to (only if this is a layered sound of course) |
* @param iLayer - layer number this voice refers to (only if this is a layered sound of course) |
110 |
* @returns 0 on success, a value < 0 if something failed |
* @param ReleaseTriggerVoice - if this new voice is a release trigger voice (optional, default = false) |
111 |
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* @returns 0 on success, a value < 0 if something failed |
112 |
*/ |
*/ |
113 |
int Voice::Trigger(Event* pNoteOnEvent, int PitchBend, ::gig::Instrument* pInstrument, int iLayer) { |
int Voice::Trigger(Pool<Event>::Iterator& itNoteOnEvent, int PitchBend, ::gig::Instrument* pInstrument, int iLayer, bool ReleaseTriggerVoice) { |
114 |
if (!pInstrument) { |
if (!pInstrument) { |
115 |
dmsg(1,("voice::trigger: !pInstrument\n")); |
dmsg(1,("voice::trigger: !pInstrument\n")); |
116 |
exit(EXIT_FAILURE); |
exit(EXIT_FAILURE); |
117 |
} |
} |
118 |
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119 |
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Type = type_normal; |
120 |
Active = true; |
Active = true; |
121 |
MIDIKey = pNoteOnEvent->Key; |
MIDIKey = itNoteOnEvent->Param.Note.Key; |
122 |
pRegion = pInstrument->GetRegion(MIDIKey); |
pRegion = pInstrument->GetRegion(MIDIKey); |
123 |
PlaybackState = playback_state_ram; // we always start playback from RAM cache and switch then to disk if needed |
PlaybackState = playback_state_ram; // we always start playback from RAM cache and switch then to disk if needed |
124 |
Delay = pNoteOnEvent->FragmentPos(); |
Delay = itNoteOnEvent->FragmentPos(); |
125 |
pTriggerEvent = pNoteOnEvent; |
itTriggerEvent = itNoteOnEvent; |
126 |
pKillEvent = NULL; |
itKillEvent = Pool<Event>::Iterator(); |
127 |
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128 |
if (!pRegion) { |
if (!pRegion) { |
129 |
std::cerr << "gig::Voice: No Region defined for MIDI key " << MIDIKey << std::endl << std::flush; |
std::cerr << "gig::Voice: No Region defined for MIDI key " << MIDIKey << std::endl << std::flush; |
146 |
// if this is the 1st layer then spawn further voices for all the other layers |
// if this is the 1st layer then spawn further voices for all the other layers |
147 |
if (iLayer == 0) |
if (iLayer == 0) |
148 |
for (int iNewLayer = 1; iNewLayer < pRegion->pDimensionDefinitions[i].zones; iNewLayer++) |
for (int iNewLayer = 1; iNewLayer < pRegion->pDimensionDefinitions[i].zones; iNewLayer++) |
149 |
pEngine->LaunchVoice(pNoteOnEvent, iNewLayer); |
pEngine->LaunchVoice(itNoteOnEvent, iNewLayer, ReleaseTriggerVoice); |
150 |
break; |
break; |
151 |
case ::gig::dimension_velocity: |
case ::gig::dimension_velocity: |
152 |
DimValues[i] = pNoteOnEvent->Velocity; |
DimValues[i] = itNoteOnEvent->Param.Note.Velocity; |
153 |
break; |
break; |
154 |
case ::gig::dimension_channelaftertouch: |
case ::gig::dimension_channelaftertouch: |
155 |
DimValues[i] = 0; //TODO: we currently ignore this dimension |
DimValues[i] = 0; //TODO: we currently ignore this dimension |
156 |
break; |
break; |
157 |
case ::gig::dimension_releasetrigger: |
case ::gig::dimension_releasetrigger: |
158 |
DimValues[i] = 0; //TODO: we currently ignore this dimension |
Type = (ReleaseTriggerVoice) ? type_release_trigger : (!iLayer) ? type_release_trigger_required : type_normal; |
159 |
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DimValues[i] = (uint) ReleaseTriggerVoice; |
160 |
break; |
break; |
161 |
case ::gig::dimension_keyboard: |
case ::gig::dimension_keyboard: |
162 |
DimValues[i] = (uint) pNoteOnEvent->Key; |
DimValues[i] = (uint) itNoteOnEvent->Param.Note.Key; |
163 |
break; |
break; |
164 |
case ::gig::dimension_modwheel: |
case ::gig::dimension_modwheel: |
165 |
DimValues[i] = pEngine->ControllerTable[1]; |
DimValues[i] = pEngine->ControllerTable[1]; |
245 |
CrossfadeVolume = 1.0f; //TODO: aftertouch not supported yet |
CrossfadeVolume = 1.0f; //TODO: aftertouch not supported yet |
246 |
break; |
break; |
247 |
case ::gig::attenuation_ctrl_t::type_velocity: |
case ::gig::attenuation_ctrl_t::type_velocity: |
248 |
CrossfadeVolume = CrossfadeAttenuation(pNoteOnEvent->Velocity); |
CrossfadeVolume = CrossfadeAttenuation(itNoteOnEvent->Param.Note.Velocity); |
249 |
break; |
break; |
250 |
case ::gig::attenuation_ctrl_t::type_controlchange: //FIXME: currently not sample accurate |
case ::gig::attenuation_ctrl_t::type_controlchange: //FIXME: currently not sample accurate |
251 |
CrossfadeVolume = CrossfadeAttenuation(pEngine->ControllerTable[pDimRgn->AttenuationController.controller_number]); |
CrossfadeVolume = CrossfadeAttenuation(pEngine->ControllerTable[pDimRgn->AttenuationController.controller_number]); |
255 |
CrossfadeVolume = 1.0f; |
CrossfadeVolume = 1.0f; |
256 |
} |
} |
257 |
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258 |
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PanLeft = 1.0f - float(RTMath::Max(pDimRgn->Pan, 0)) / 63.0f; |
259 |
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PanRight = 1.0f - float(RTMath::Min(pDimRgn->Pan, 0)) / -64.0f; |
260 |
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261 |
pSample = pDimRgn->pSample; // sample won't change until the voice is finished |
pSample = pDimRgn->pSample; // sample won't change until the voice is finished |
262 |
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263 |
Pos = pDimRgn->SampleStartOffset; // offset where we should start playback of sample (0 - 2000 sample points) |
Pos = pDimRgn->SampleStartOffset; // offset where we should start playback of sample (0 - 2000 sample points) |
296 |
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297 |
// calculate initial pitch value |
// calculate initial pitch value |
298 |
{ |
{ |
299 |
double pitchbasecents = pDimRgn->FineTune * 10; |
double pitchbasecents = pDimRgn->FineTune * 10 + (int) pEngine->ScaleTuning[MIDIKey % 12]; |
300 |
if (pDimRgn->PitchTrack) pitchbasecents += (MIDIKey - (int) pDimRgn->UnityNote) * 100; |
if (pDimRgn->PitchTrack) pitchbasecents += (MIDIKey - (int) pDimRgn->UnityNote) * 100; |
301 |
this->PitchBase = RTMath::CentsToFreqRatio(pitchbasecents) * (double(pSample->SamplesPerSecond) / double(pEngine->pAudioOutputDevice->SampleRate())); |
this->PitchBase = RTMath::CentsToFreqRatio(pitchbasecents) * (double(pSample->SamplesPerSecond) / double(pEngine->pAudioOutputDevice->SampleRate())); |
302 |
this->PitchBend = RTMath::CentsToFreqRatio(((double) PitchBend / 8192.0) * 200.0); // pitchbend wheel +-2 semitones = 200 cents |
this->PitchBend = RTMath::CentsToFreqRatio(((double) PitchBend / 8192.0) * 200.0); // pitchbend wheel +-2 semitones = 200 cents |
303 |
} |
} |
304 |
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305 |
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306 |
Volume = pDimRgn->GetVelocityAttenuation(pNoteOnEvent->Velocity) / 32768.0f; // we downscale by 32768 to convert from int16 value range to DSP value range (which is -1.0..1.0) |
Volume = pDimRgn->GetVelocityAttenuation(itNoteOnEvent->Param.Note.Velocity) / 32768.0f; // we downscale by 32768 to convert from int16 value range to DSP value range (which is -1.0..1.0) |
307 |
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308 |
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309 |
// setup EG 1 (VCA EG) |
// setup EG 1 (VCA EG) |
318 |
eg1controllervalue = 0; // TODO: aftertouch not yet supported |
eg1controllervalue = 0; // TODO: aftertouch not yet supported |
319 |
break; |
break; |
320 |
case ::gig::eg1_ctrl_t::type_velocity: |
case ::gig::eg1_ctrl_t::type_velocity: |
321 |
eg1controllervalue = pNoteOnEvent->Velocity; |
eg1controllervalue = itNoteOnEvent->Param.Note.Velocity; |
322 |
break; |
break; |
323 |
case ::gig::eg1_ctrl_t::type_controlchange: // MIDI control change controller |
case ::gig::eg1_ctrl_t::type_controlchange: // MIDI control change controller |
324 |
eg1controllervalue = pEngine->ControllerTable[pDimRgn->EG1Controller.controller_number]; |
eg1controllervalue = pEngine->ControllerTable[pDimRgn->EG1Controller.controller_number]; |
357 |
eg2controllervalue = 0; // TODO: aftertouch not yet supported |
eg2controllervalue = 0; // TODO: aftertouch not yet supported |
358 |
break; |
break; |
359 |
case ::gig::eg2_ctrl_t::type_velocity: |
case ::gig::eg2_ctrl_t::type_velocity: |
360 |
eg2controllervalue = pNoteOnEvent->Velocity; |
eg2controllervalue = itNoteOnEvent->Param.Note.Velocity; |
361 |
break; |
break; |
362 |
case ::gig::eg2_ctrl_t::type_controlchange: // MIDI control change controller |
case ::gig::eg2_ctrl_t::type_controlchange: // MIDI control change controller |
363 |
eg2controllervalue = pEngine->ControllerTable[pDimRgn->EG2Controller.controller_number]; |
eg2controllervalue = pEngine->ControllerTable[pDimRgn->EG2Controller.controller_number]; |
585 |
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586 |
// calculate cutoff frequency |
// calculate cutoff frequency |
587 |
float cutoff = (!VCFCutoffCtrl.controller) |
float cutoff = (!VCFCutoffCtrl.controller) |
588 |
? exp((float) (127 - pNoteOnEvent->Velocity) * (float) pDimRgn->VCFVelocityScale * 6.2E-5f * FILTER_CUTOFF_COEFF) * FILTER_CUTOFF_MAX |
? exp((float) (127 - itNoteOnEvent->Param.Note.Velocity) * (float) pDimRgn->VCFVelocityScale * 6.2E-5f * FILTER_CUTOFF_COEFF) * FILTER_CUTOFF_MAX |
589 |
: exp((float) VCFCutoffCtrl.value * 0.00787402f * FILTER_CUTOFF_COEFF) * FILTER_CUTOFF_MAX; |
: exp((float) VCFCutoffCtrl.value * 0.00787402f * FILTER_CUTOFF_COEFF) * FILTER_CUTOFF_MAX; |
590 |
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591 |
// calculate resonance |
// calculate resonance |
592 |
float resonance = (float) VCFResonanceCtrl.value * 0.00787f; // 0.0..1.0 |
float resonance = (float) VCFResonanceCtrl.value * 0.00787f; // 0.0..1.0 |
593 |
if (pDimRgn->VCFKeyboardTracking) { |
if (pDimRgn->VCFKeyboardTracking) { |
594 |
resonance += (float) (pNoteOnEvent->Key - pDimRgn->VCFKeyboardTrackingBreakpoint) * 0.00787f; |
resonance += (float) (itNoteOnEvent->Param.Note.Key - pDimRgn->VCFKeyboardTrackingBreakpoint) * 0.00787f; |
595 |
} |
} |
596 |
Constrain(resonance, 0.0, 1.0); // correct resonance if outside allowed value range (0.0..1.0) |
Constrain(resonance, 0.0, 1.0); // correct resonance if outside allowed value range (0.0..1.0) |
597 |
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639 |
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640 |
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641 |
// Let all modulators write their parameter changes to the synthesis parameter matrix for the current audio fragment |
// Let all modulators write their parameter changes to the synthesis parameter matrix for the current audio fragment |
642 |
pEG1->Process(Samples, pEngine->pMIDIKeyInfo[MIDIKey].pEvents, pTriggerEvent, this->Pos, this->PitchBase * this->PitchBend, pKillEvent); |
pEG1->Process(Samples, pEngine->pMIDIKeyInfo[MIDIKey].pEvents, itTriggerEvent, this->Pos, this->PitchBase * this->PitchBend, itKillEvent); |
643 |
#if ENABLE_FILTER |
#if ENABLE_FILTER |
644 |
pEG2->Process(Samples, pEngine->pMIDIKeyInfo[MIDIKey].pEvents, pTriggerEvent, this->Pos, this->PitchBase * this->PitchBend); |
pEG2->Process(Samples, pEngine->pMIDIKeyInfo[MIDIKey].pEvents, itTriggerEvent, this->Pos, this->PitchBase * this->PitchBend); |
645 |
#endif // ENABLE_FILTER |
#endif // ENABLE_FILTER |
646 |
pEG3->Process(Samples); |
pEG3->Process(Samples); |
647 |
pLFO1->Process(Samples); |
pLFO1->Process(Samples); |
660 |
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661 |
case playback_state_ram: { |
case playback_state_ram: { |
662 |
if (RAMLoop) InterpolateAndLoop(Samples, (sample_t*) pSample->GetCache().pStart, Delay); |
if (RAMLoop) InterpolateAndLoop(Samples, (sample_t*) pSample->GetCache().pStart, Delay); |
663 |
else Interpolate(Samples, (sample_t*) pSample->GetCache().pStart, Delay); |
else InterpolateNoLoop(Samples, (sample_t*) pSample->GetCache().pStart, Delay); |
664 |
if (DiskVoice) { |
if (DiskVoice) { |
665 |
// check if we reached the allowed limit of the sample RAM cache |
// check if we reached the allowed limit of the sample RAM cache |
666 |
if (Pos > MaxRAMPos) { |
if (Pos > MaxRAMPos) { |
694 |
} |
} |
695 |
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696 |
sample_t* ptr = DiskStreamRef.pStream->GetReadPtr(); // get the current read_ptr within the ringbuffer where we read the samples from |
sample_t* ptr = DiskStreamRef.pStream->GetReadPtr(); // get the current read_ptr within the ringbuffer where we read the samples from |
697 |
Interpolate(Samples, ptr, Delay); |
InterpolateNoLoop(Samples, ptr, Delay); |
698 |
DiskStreamRef.pStream->IncrementReadPos(RTMath::DoubleToInt(Pos) * pSample->Channels); |
DiskStreamRef.pStream->IncrementReadPos(RTMath::DoubleToInt(Pos) * pSample->Channels); |
699 |
Pos -= RTMath::DoubleToInt(Pos); |
Pos -= RTMath::DoubleToInt(Pos); |
700 |
} |
} |
716 |
// Reset delay |
// Reset delay |
717 |
Delay = 0; |
Delay = 0; |
718 |
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719 |
pTriggerEvent = NULL; |
itTriggerEvent = Pool<Event>::Iterator(); |
720 |
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721 |
// If release stage finished, let the voice be killed |
// If release stage finished, let the voice be killed |
722 |
if (pEG1->GetStage() == EGADSR::stage_end) this->PlaybackState = playback_state_end; |
if (pEG1->GetStage() == EGADSR::stage_end) this->PlaybackState = playback_state_end; |
747 |
void Voice::ProcessEvents(uint Samples) { |
void Voice::ProcessEvents(uint Samples) { |
748 |
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749 |
// dispatch control change events |
// dispatch control change events |
750 |
Event* pCCEvent = pEngine->pCCEvents->first(); |
RTList<Event>::Iterator itCCEvent = pEngine->pCCEvents->first(); |
751 |
if (Delay) { // skip events that happened before this voice was triggered |
if (Delay) { // skip events that happened before this voice was triggered |
752 |
while (pCCEvent && pCCEvent->FragmentPos() <= Delay) pCCEvent = pEngine->pCCEvents->next(); |
while (itCCEvent && itCCEvent->FragmentPos() <= Delay) ++itCCEvent; |
753 |
} |
} |
754 |
while (pCCEvent) { |
while (itCCEvent) { |
755 |
if (pCCEvent->Controller) { // if valid MIDI controller |
if (itCCEvent->Param.CC.Controller) { // if valid MIDI controller |
756 |
#if ENABLE_FILTER |
#if ENABLE_FILTER |
757 |
if (pCCEvent->Controller == VCFCutoffCtrl.controller) { |
if (itCCEvent->Param.CC.Controller == VCFCutoffCtrl.controller) { |
758 |
pEngine->pSynthesisEvents[Event::destination_vcfc]->alloc_assign(*pCCEvent); |
*pEngine->pSynthesisEvents[Event::destination_vcfc]->allocAppend() = *itCCEvent; |
759 |
} |
} |
760 |
if (pCCEvent->Controller == VCFResonanceCtrl.controller) { |
if (itCCEvent->Param.CC.Controller == VCFResonanceCtrl.controller) { |
761 |
pEngine->pSynthesisEvents[Event::destination_vcfr]->alloc_assign(*pCCEvent); |
*pEngine->pSynthesisEvents[Event::destination_vcfr]->allocAppend() = *itCCEvent; |
762 |
} |
} |
763 |
#endif // ENABLE_FILTER |
#endif // ENABLE_FILTER |
764 |
if (pCCEvent->Controller == pLFO1->ExtController) { |
if (itCCEvent->Param.CC.Controller == pLFO1->ExtController) { |
765 |
pLFO1->SendEvent(pCCEvent); |
pLFO1->SendEvent(itCCEvent); |
766 |
} |
} |
767 |
#if ENABLE_FILTER |
#if ENABLE_FILTER |
768 |
if (pCCEvent->Controller == pLFO2->ExtController) { |
if (itCCEvent->Param.CC.Controller == pLFO2->ExtController) { |
769 |
pLFO2->SendEvent(pCCEvent); |
pLFO2->SendEvent(itCCEvent); |
770 |
} |
} |
771 |
#endif // ENABLE_FILTER |
#endif // ENABLE_FILTER |
772 |
if (pCCEvent->Controller == pLFO3->ExtController) { |
if (itCCEvent->Param.CC.Controller == pLFO3->ExtController) { |
773 |
pLFO3->SendEvent(pCCEvent); |
pLFO3->SendEvent(itCCEvent); |
774 |
} |
} |
775 |
if (pDimRgn->AttenuationController.type == ::gig::attenuation_ctrl_t::type_controlchange && |
if (pDimRgn->AttenuationController.type == ::gig::attenuation_ctrl_t::type_controlchange && |
776 |
pCCEvent->Controller == pDimRgn->AttenuationController.controller_number) { // if crossfade event |
itCCEvent->Param.CC.Controller == pDimRgn->AttenuationController.controller_number) { // if crossfade event |
777 |
pEngine->pSynthesisEvents[Event::destination_vca]->alloc_assign(*pCCEvent); |
*pEngine->pSynthesisEvents[Event::destination_vca]->allocAppend() = *itCCEvent; |
778 |
} |
} |
779 |
} |
} |
780 |
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|
781 |
pCCEvent = pEngine->pCCEvents->next(); |
++itCCEvent; |
782 |
} |
} |
783 |
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784 |
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|
785 |
// process pitch events |
// process pitch events |
786 |
{ |
{ |
787 |
RTEList<Event>* pVCOEventList = pEngine->pSynthesisEvents[Event::destination_vco]; |
RTList<Event>* pVCOEventList = pEngine->pSynthesisEvents[Event::destination_vco]; |
788 |
Event* pVCOEvent = pVCOEventList->first(); |
RTList<Event>::Iterator itVCOEvent = pVCOEventList->first(); |
789 |
if (Delay) { // skip events that happened before this voice was triggered |
if (Delay) { // skip events that happened before this voice was triggered |
790 |
while (pVCOEvent && pVCOEvent->FragmentPos() <= Delay) pVCOEvent = pVCOEventList->next(); |
while (itVCOEvent && itVCOEvent->FragmentPos() <= Delay) ++itVCOEvent; |
791 |
} |
} |
792 |
// apply old pitchbend value until first pitch event occurs |
// apply old pitchbend value until first pitch event occurs |
793 |
if (this->PitchBend != 1.0) { |
if (this->PitchBend != 1.0) { |
794 |
uint end = (pVCOEvent) ? pVCOEvent->FragmentPos() : Samples; |
uint end = (itVCOEvent) ? itVCOEvent->FragmentPos() : Samples; |
795 |
for (uint i = Delay; i < end; i++) { |
for (uint i = Delay; i < end; i++) { |
796 |
pEngine->pSynthesisParameters[Event::destination_vco][i] *= this->PitchBend; |
pEngine->pSynthesisParameters[Event::destination_vco][i] *= this->PitchBend; |
797 |
} |
} |
798 |
} |
} |
799 |
float pitch; |
float pitch; |
800 |
while (pVCOEvent) { |
while (itVCOEvent) { |
801 |
Event* pNextVCOEvent = pVCOEventList->next(); |
RTList<Event>::Iterator itNextVCOEvent = itVCOEvent; |
802 |
|
++itNextVCOEvent; |
803 |
|
|
804 |
// calculate the influence length of this event (in sample points) |
// calculate the influence length of this event (in sample points) |
805 |
uint end = (pNextVCOEvent) ? pNextVCOEvent->FragmentPos() : Samples; |
uint end = (itNextVCOEvent) ? itNextVCOEvent->FragmentPos() : Samples; |
806 |
|
|
807 |
pitch = RTMath::CentsToFreqRatio(((double) pVCOEvent->Pitch / 8192.0) * 200.0); // +-two semitones = +-200 cents |
pitch = RTMath::CentsToFreqRatio(((double) itVCOEvent->Param.Pitch.Pitch / 8192.0) * 200.0); // +-two semitones = +-200 cents |
808 |
|
|
809 |
// apply pitch value to the pitch parameter sequence |
// apply pitch value to the pitch parameter sequence |
810 |
for (uint i = pVCOEvent->FragmentPos(); i < end; i++) { |
for (uint i = itVCOEvent->FragmentPos(); i < end; i++) { |
811 |
pEngine->pSynthesisParameters[Event::destination_vco][i] *= pitch; |
pEngine->pSynthesisParameters[Event::destination_vco][i] *= pitch; |
812 |
} |
} |
813 |
|
|
814 |
pVCOEvent = pNextVCOEvent; |
itVCOEvent = itNextVCOEvent; |
815 |
} |
} |
816 |
if (pVCOEventList->last()) this->PitchBend = pitch; |
if (!pVCOEventList->isEmpty()) this->PitchBend = pitch; |
817 |
} |
} |
818 |
|
|
819 |
// process volume / attenuation events (TODO: we only handle and _expect_ crossfade events here ATM !) |
// process volume / attenuation events (TODO: we only handle and _expect_ crossfade events here ATM !) |
820 |
{ |
{ |
821 |
RTEList<Event>* pVCAEventList = pEngine->pSynthesisEvents[Event::destination_vca]; |
RTList<Event>* pVCAEventList = pEngine->pSynthesisEvents[Event::destination_vca]; |
822 |
Event* pVCAEvent = pVCAEventList->first(); |
RTList<Event>::Iterator itVCAEvent = pVCAEventList->first(); |
823 |
if (Delay) { // skip events that happened before this voice was triggered |
if (Delay) { // skip events that happened before this voice was triggered |
824 |
while (pVCAEvent && pVCAEvent->FragmentPos() <= Delay) pVCAEvent = pVCAEventList->next(); |
while (itVCAEvent && itVCAEvent->FragmentPos() <= Delay) ++itVCAEvent; |
825 |
} |
} |
826 |
float crossfadevolume; |
float crossfadevolume; |
827 |
while (pVCAEvent) { |
while (itVCAEvent) { |
828 |
Event* pNextVCAEvent = pVCAEventList->next(); |
RTList<Event>::Iterator itNextVCAEvent = itVCAEvent; |
829 |
|
++itNextVCAEvent; |
830 |
|
|
831 |
// calculate the influence length of this event (in sample points) |
// calculate the influence length of this event (in sample points) |
832 |
uint end = (pNextVCAEvent) ? pNextVCAEvent->FragmentPos() : Samples; |
uint end = (itNextVCAEvent) ? itNextVCAEvent->FragmentPos() : Samples; |
833 |
|
|
834 |
crossfadevolume = CrossfadeAttenuation(pVCAEvent->Value); |
crossfadevolume = CrossfadeAttenuation(itVCAEvent->Param.CC.Value); |
835 |
|
|
836 |
float effective_volume = crossfadevolume * this->Volume * pEngine->GlobalVolume; |
float effective_volume = crossfadevolume * this->Volume * pEngine->GlobalVolume; |
837 |
|
|
838 |
// apply volume value to the volume parameter sequence |
// apply volume value to the volume parameter sequence |
839 |
for (uint i = pVCAEvent->FragmentPos(); i < end; i++) { |
for (uint i = itVCAEvent->FragmentPos(); i < end; i++) { |
840 |
pEngine->pSynthesisParameters[Event::destination_vca][i] = effective_volume; |
pEngine->pSynthesisParameters[Event::destination_vca][i] = effective_volume; |
841 |
} |
} |
842 |
|
|
843 |
pVCAEvent = pNextVCAEvent; |
itVCAEvent = itNextVCAEvent; |
844 |
} |
} |
845 |
if (pVCAEventList->last()) this->CrossfadeVolume = crossfadevolume; |
if (!pVCAEventList->isEmpty()) this->CrossfadeVolume = crossfadevolume; |
846 |
} |
} |
847 |
|
|
848 |
#if ENABLE_FILTER |
#if ENABLE_FILTER |
849 |
// process filter cutoff events |
// process filter cutoff events |
850 |
{ |
{ |
851 |
RTEList<Event>* pCutoffEventList = pEngine->pSynthesisEvents[Event::destination_vcfc]; |
RTList<Event>* pCutoffEventList = pEngine->pSynthesisEvents[Event::destination_vcfc]; |
852 |
Event* pCutoffEvent = pCutoffEventList->first(); |
RTList<Event>::Iterator itCutoffEvent = pCutoffEventList->first(); |
853 |
if (Delay) { // skip events that happened before this voice was triggered |
if (Delay) { // skip events that happened before this voice was triggered |
854 |
while (pCutoffEvent && pCutoffEvent->FragmentPos() <= Delay) pCutoffEvent = pCutoffEventList->next(); |
while (itCutoffEvent && itCutoffEvent->FragmentPos() <= Delay) ++itCutoffEvent; |
855 |
} |
} |
856 |
float cutoff; |
float cutoff; |
857 |
while (pCutoffEvent) { |
while (itCutoffEvent) { |
858 |
Event* pNextCutoffEvent = pCutoffEventList->next(); |
RTList<Event>::Iterator itNextCutoffEvent = itCutoffEvent; |
859 |
|
++itNextCutoffEvent; |
860 |
|
|
861 |
// calculate the influence length of this event (in sample points) |
// calculate the influence length of this event (in sample points) |
862 |
uint end = (pNextCutoffEvent) ? pNextCutoffEvent->FragmentPos() : Samples; |
uint end = (itNextCutoffEvent) ? itNextCutoffEvent->FragmentPos() : Samples; |
863 |
|
|
864 |
cutoff = exp((float) pCutoffEvent->Value * 0.00787402f * FILTER_CUTOFF_COEFF) * FILTER_CUTOFF_MAX - FILTER_CUTOFF_MIN; |
cutoff = exp((float) itCutoffEvent->Param.CC.Value * 0.00787402f * FILTER_CUTOFF_COEFF) * FILTER_CUTOFF_MAX - FILTER_CUTOFF_MIN; |
865 |
|
|
866 |
// apply cutoff frequency to the cutoff parameter sequence |
// apply cutoff frequency to the cutoff parameter sequence |
867 |
for (uint i = pCutoffEvent->FragmentPos(); i < end; i++) { |
for (uint i = itCutoffEvent->FragmentPos(); i < end; i++) { |
868 |
pEngine->pSynthesisParameters[Event::destination_vcfc][i] = cutoff; |
pEngine->pSynthesisParameters[Event::destination_vcfc][i] = cutoff; |
869 |
} |
} |
870 |
|
|
871 |
pCutoffEvent = pNextCutoffEvent; |
itCutoffEvent = itNextCutoffEvent; |
872 |
} |
} |
873 |
if (pCutoffEventList->last()) VCFCutoffCtrl.fvalue = cutoff; // needed for initialization of parameter matrix next time |
if (!pCutoffEventList->isEmpty()) VCFCutoffCtrl.fvalue = cutoff; // needed for initialization of parameter matrix next time |
874 |
} |
} |
875 |
|
|
876 |
// process filter resonance events |
// process filter resonance events |
877 |
{ |
{ |
878 |
RTEList<Event>* pResonanceEventList = pEngine->pSynthesisEvents[Event::destination_vcfr]; |
RTList<Event>* pResonanceEventList = pEngine->pSynthesisEvents[Event::destination_vcfr]; |
879 |
Event* pResonanceEvent = pResonanceEventList->first(); |
RTList<Event>::Iterator itResonanceEvent = pResonanceEventList->first(); |
880 |
if (Delay) { // skip events that happened before this voice was triggered |
if (Delay) { // skip events that happened before this voice was triggered |
881 |
while (pResonanceEvent && pResonanceEvent->FragmentPos() <= Delay) pResonanceEvent = pResonanceEventList->next(); |
while (itResonanceEvent && itResonanceEvent->FragmentPos() <= Delay) ++itResonanceEvent; |
882 |
} |
} |
883 |
while (pResonanceEvent) { |
while (itResonanceEvent) { |
884 |
Event* pNextResonanceEvent = pResonanceEventList->next(); |
RTList<Event>::Iterator itNextResonanceEvent = itResonanceEvent; |
885 |
|
++itNextResonanceEvent; |
886 |
|
|
887 |
// calculate the influence length of this event (in sample points) |
// calculate the influence length of this event (in sample points) |
888 |
uint end = (pNextResonanceEvent) ? pNextResonanceEvent->FragmentPos() : Samples; |
uint end = (itNextResonanceEvent) ? itNextResonanceEvent->FragmentPos() : Samples; |
889 |
|
|
890 |
// convert absolute controller value to differential |
// convert absolute controller value to differential |
891 |
int ctrldelta = pResonanceEvent->Value - VCFResonanceCtrl.value; |
int ctrldelta = itResonanceEvent->Param.CC.Value - VCFResonanceCtrl.value; |
892 |
VCFResonanceCtrl.value = pResonanceEvent->Value; |
VCFResonanceCtrl.value = itResonanceEvent->Param.CC.Value; |
893 |
|
|
894 |
float resonancedelta = (float) ctrldelta * 0.00787f; // 0.0..1.0 |
float resonancedelta = (float) ctrldelta * 0.00787f; // 0.0..1.0 |
895 |
|
|
896 |
// apply cutoff frequency to the cutoff parameter sequence |
// apply cutoff frequency to the cutoff parameter sequence |
897 |
for (uint i = pResonanceEvent->FragmentPos(); i < end; i++) { |
for (uint i = itResonanceEvent->FragmentPos(); i < end; i++) { |
898 |
pEngine->pSynthesisParameters[Event::destination_vcfr][i] += resonancedelta; |
pEngine->pSynthesisParameters[Event::destination_vcfr][i] += resonancedelta; |
899 |
} |
} |
900 |
|
|
901 |
pResonanceEvent = pNextResonanceEvent; |
itResonanceEvent = itNextResonanceEvent; |
902 |
} |
} |
903 |
if (pResonanceEventList->last()) VCFResonanceCtrl.fvalue = pResonanceEventList->last()->Value * 0.00787f; // needed for initialization of parameter matrix next time |
if (!pResonanceEventList->isEmpty()) VCFResonanceCtrl.fvalue = pResonanceEventList->last()->Param.CC.Value * 0.00787f; // needed for initialization of parameter matrix next time |
904 |
} |
} |
905 |
#endif // ENABLE_FILTER |
#endif // ENABLE_FILTER |
906 |
} |
} |
952 |
#endif // ENABLE_FILTER |
#endif // ENABLE_FILTER |
953 |
|
|
954 |
/** |
/** |
955 |
* Interpolates the input audio data (no loop). |
* Interpolates the input audio data (without looping). |
956 |
* |
* |
957 |
* @param Samples - number of sample points to be rendered in this audio |
* @param Samples - number of sample points to be rendered in this audio |
958 |
* fragment cycle |
* fragment cycle |
959 |
* @param pSrc - pointer to input sample data |
* @param pSrc - pointer to input sample data |
960 |
* @param Skip - number of sample points to skip in output buffer |
* @param Skip - number of sample points to skip in output buffer |
961 |
*/ |
*/ |
962 |
void Voice::Interpolate(uint Samples, sample_t* pSrc, uint Skip) { |
void Voice::InterpolateNoLoop(uint Samples, sample_t* pSrc, uint Skip) { |
963 |
int i = Skip; |
int i = Skip; |
964 |
|
|
965 |
// FIXME: assuming either mono or stereo |
// FIXME: assuming either mono or stereo |
966 |
if (this->pSample->Channels == 2) { // Stereo Sample |
if (this->pSample->Channels == 2) { // Stereo Sample |
967 |
while (i < Samples) { |
while (i < Samples) InterpolateStereo(pSrc, i); |
|
InterpolateOneStep_Stereo(pSrc, i, |
|
|
pEngine->pSynthesisParameters[Event::destination_vca][i], |
|
|
pEngine->pSynthesisParameters[Event::destination_vco][i], |
|
|
pEngine->pBasicFilterParameters[i], |
|
|
pEngine->pMainFilterParameters[i]); |
|
|
} |
|
968 |
} |
} |
969 |
else { // Mono Sample |
else { // Mono Sample |
970 |
while (i < Samples) { |
while (i < Samples) InterpolateMono(pSrc, i); |
|
InterpolateOneStep_Mono(pSrc, i, |
|
|
pEngine->pSynthesisParameters[Event::destination_vca][i], |
|
|
pEngine->pSynthesisParameters[Event::destination_vco][i], |
|
|
pEngine->pBasicFilterParameters[i], |
|
|
pEngine->pMainFilterParameters[i]); |
|
|
} |
|
971 |
} |
} |
972 |
} |
} |
973 |
|
|
987 |
if (pSample->LoopPlayCount) { |
if (pSample->LoopPlayCount) { |
988 |
// render loop (loop count limited) |
// render loop (loop count limited) |
989 |
while (i < Samples && LoopCyclesLeft) { |
while (i < Samples && LoopCyclesLeft) { |
990 |
InterpolateOneStep_Stereo(pSrc, i, |
InterpolateStereo(pSrc, i); |
|
pEngine->pSynthesisParameters[Event::destination_vca][i], |
|
|
pEngine->pSynthesisParameters[Event::destination_vco][i], |
|
|
pEngine->pBasicFilterParameters[i], |
|
|
pEngine->pMainFilterParameters[i]); |
|
991 |
if (Pos > pSample->LoopEnd) { |
if (Pos > pSample->LoopEnd) { |
992 |
Pos = pSample->LoopStart + fmod(Pos - pSample->LoopEnd, pSample->LoopSize);; |
Pos = pSample->LoopStart + fmod(Pos - pSample->LoopEnd, pSample->LoopSize);; |
993 |
LoopCyclesLeft--; |
LoopCyclesLeft--; |
994 |
} |
} |
995 |
} |
} |
996 |
// render on without loop |
// render on without loop |
997 |
while (i < Samples) { |
while (i < Samples) InterpolateStereo(pSrc, i); |
|
InterpolateOneStep_Stereo(pSrc, i, |
|
|
pEngine->pSynthesisParameters[Event::destination_vca][i], |
|
|
pEngine->pSynthesisParameters[Event::destination_vco][i], |
|
|
pEngine->pBasicFilterParameters[i], |
|
|
pEngine->pMainFilterParameters[i]); |
|
|
} |
|
998 |
} |
} |
999 |
else { // render loop (endless loop) |
else { // render loop (endless loop) |
1000 |
while (i < Samples) { |
while (i < Samples) { |
1001 |
InterpolateOneStep_Stereo(pSrc, i, |
InterpolateStereo(pSrc, i); |
|
pEngine->pSynthesisParameters[Event::destination_vca][i], |
|
|
pEngine->pSynthesisParameters[Event::destination_vco][i], |
|
|
pEngine->pBasicFilterParameters[i], |
|
|
pEngine->pMainFilterParameters[i]); |
|
1002 |
if (Pos > pSample->LoopEnd) { |
if (Pos > pSample->LoopEnd) { |
1003 |
Pos = pSample->LoopStart + fmod(Pos - pSample->LoopEnd, pSample->LoopSize); |
Pos = pSample->LoopStart + fmod(Pos - pSample->LoopEnd, pSample->LoopSize); |
1004 |
} |
} |
1009 |
if (pSample->LoopPlayCount) { |
if (pSample->LoopPlayCount) { |
1010 |
// render loop (loop count limited) |
// render loop (loop count limited) |
1011 |
while (i < Samples && LoopCyclesLeft) { |
while (i < Samples && LoopCyclesLeft) { |
1012 |
InterpolateOneStep_Mono(pSrc, i, |
InterpolateMono(pSrc, i); |
|
pEngine->pSynthesisParameters[Event::destination_vca][i], |
|
|
pEngine->pSynthesisParameters[Event::destination_vco][i], |
|
|
pEngine->pBasicFilterParameters[i], |
|
|
pEngine->pMainFilterParameters[i]); |
|
1013 |
if (Pos > pSample->LoopEnd) { |
if (Pos > pSample->LoopEnd) { |
1014 |
Pos = pSample->LoopStart + fmod(Pos - pSample->LoopEnd, pSample->LoopSize);; |
Pos = pSample->LoopStart + fmod(Pos - pSample->LoopEnd, pSample->LoopSize);; |
1015 |
LoopCyclesLeft--; |
LoopCyclesLeft--; |
1016 |
} |
} |
1017 |
} |
} |
1018 |
// render on without loop |
// render on without loop |
1019 |
while (i < Samples) { |
while (i < Samples) InterpolateMono(pSrc, i); |
|
InterpolateOneStep_Mono(pSrc, i, |
|
|
pEngine->pSynthesisParameters[Event::destination_vca][i], |
|
|
pEngine->pSynthesisParameters[Event::destination_vco][i], |
|
|
pEngine->pBasicFilterParameters[i], |
|
|
pEngine->pMainFilterParameters[i]); |
|
|
} |
|
1020 |
} |
} |
1021 |
else { // render loop (endless loop) |
else { // render loop (endless loop) |
1022 |
while (i < Samples) { |
while (i < Samples) { |
1023 |
InterpolateOneStep_Mono(pSrc, i, |
InterpolateMono(pSrc, i); |
|
pEngine->pSynthesisParameters[Event::destination_vca][i], |
|
|
pEngine->pSynthesisParameters[Event::destination_vco][i], |
|
|
pEngine->pBasicFilterParameters[i], |
|
|
pEngine->pMainFilterParameters[i]); |
|
1024 |
if (Pos > pSample->LoopEnd) { |
if (Pos > pSample->LoopEnd) { |
1025 |
Pos = pSample->LoopStart + fmod(Pos - pSample->LoopEnd, pSample->LoopSize);; |
Pos = pSample->LoopStart + fmod(Pos - pSample->LoopEnd, pSample->LoopSize);; |
1026 |
} |
} |
1051 |
* of a voice, a kill process cannot be cancalled and is therefore |
* of a voice, a kill process cannot be cancalled and is therefore |
1052 |
* usually used for voice stealing and key group conflicts. |
* usually used for voice stealing and key group conflicts. |
1053 |
* |
* |
1054 |
* @param pKillEvent - event which caused the voice to be killed |
* @param itKillEvent - event which caused the voice to be killed |
1055 |
*/ |
*/ |
1056 |
void Voice::Kill(Event* pKillEvent) { |
void Voice::Kill(Pool<Event>::Iterator& itKillEvent) { |
1057 |
this->pKillEvent = pKillEvent; |
if (itTriggerEvent && itKillEvent->FragmentPos() <= itTriggerEvent->FragmentPos()) return; |
1058 |
|
this->itKillEvent = itKillEvent; |
1059 |
} |
} |
1060 |
|
|
1061 |
}} // namespace LinuxSampler::gig |
}} // namespace LinuxSampler::gig |