22 |
|
|
23 |
#include "EGADSR.h" |
#include "EGADSR.h" |
24 |
#include "Manipulator.h" |
#include "Manipulator.h" |
25 |
|
#include "../../common/Features.h" |
26 |
|
#include "Synthesizer.h" |
27 |
|
|
28 |
#include "Voice.h" |
#include "Voice.h" |
29 |
|
|
58 |
pLFO2 = NULL; |
pLFO2 = NULL; |
59 |
pLFO3 = NULL; |
pLFO3 = NULL; |
60 |
KeyGroup = 0; |
KeyGroup = 0; |
61 |
|
|
62 |
|
// select synthesis implementation (currently either pure C++ or MMX+SSE(1)) |
63 |
|
SYNTHESIS_MODE_SET_IMPLEMENTATION(SynthesisMode, Features::supportsMMX() && Features::supportsSSE()); |
64 |
} |
} |
65 |
|
|
66 |
Voice::~Voice() { |
Voice::~Voice() { |
113 |
* @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 |
114 |
* @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) |
115 |
* @param ReleaseTriggerVoice - if this new voice is a release trigger voice (optional, default = false) |
* @param ReleaseTriggerVoice - if this new voice is a release trigger voice (optional, default = false) |
116 |
|
* @param VoiceStealing - wether the voice is allowed to steal voices for further subvoices |
117 |
* @returns 0 on success, a value < 0 if something failed |
* @returns 0 on success, a value < 0 if something failed |
118 |
*/ |
*/ |
119 |
int Voice::Trigger(Pool<Event>::Iterator& itNoteOnEvent, int PitchBend, ::gig::Instrument* pInstrument, int iLayer, bool ReleaseTriggerVoice) { |
int Voice::Trigger(Pool<Event>::Iterator& itNoteOnEvent, int PitchBend, ::gig::Instrument* pInstrument, int iLayer, bool ReleaseTriggerVoice, bool VoiceStealing) { |
120 |
if (!pInstrument) { |
if (!pInstrument) { |
121 |
dmsg(1,("voice::trigger: !pInstrument\n")); |
dmsg(1,("voice::trigger: !pInstrument\n")); |
122 |
exit(EXIT_FAILURE); |
exit(EXIT_FAILURE); |
123 |
} |
} |
124 |
|
if (itNoteOnEvent->FragmentPos() > pEngine->MaxSamplesPerCycle) { // FIXME: should be removed before the final release (purpose: just a sanity check for debugging) |
125 |
|
dmsg(1,("Voice::Trigger(): ERROR, TriggerDelay > Totalsamples\n")); |
126 |
|
} |
127 |
|
|
128 |
Type = type_normal; |
Type = type_normal; |
129 |
MIDIKey = itNoteOnEvent->Param.Note.Key; |
MIDIKey = itNoteOnEvent->Param.Note.Key; |
155 |
// 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 |
156 |
if (iLayer == 0) |
if (iLayer == 0) |
157 |
for (int iNewLayer = 1; iNewLayer < pRegion->pDimensionDefinitions[i].zones; iNewLayer++) |
for (int iNewLayer = 1; iNewLayer < pRegion->pDimensionDefinitions[i].zones; iNewLayer++) |
158 |
itChildVoice = pEngine->LaunchVoice(itNoteOnEvent, iNewLayer, ReleaseTriggerVoice); |
itChildVoice = pEngine->LaunchVoice(itNoteOnEvent, iNewLayer, ReleaseTriggerVoice, VoiceStealing); |
159 |
break; |
break; |
160 |
case ::gig::dimension_velocity: |
case ::gig::dimension_velocity: |
161 |
DimValues[i] = itNoteOnEvent->Param.Note.Velocity; |
DimValues[i] = itNoteOnEvent->Param.Note.Velocity; |
248 |
} |
} |
249 |
pDimRgn = pRegion->GetDimensionRegionByValue(DimValues[4],DimValues[3],DimValues[2],DimValues[1],DimValues[0]); |
pDimRgn = pRegion->GetDimensionRegionByValue(DimValues[4],DimValues[3],DimValues[2],DimValues[1],DimValues[0]); |
250 |
|
|
251 |
|
pSample = pDimRgn->pSample; // sample won't change until the voice is finished |
252 |
|
|
253 |
|
// select channel mode (mono or stereo) |
254 |
|
SYNTHESIS_MODE_SET_CHANNELS(SynthesisMode, pSample->Channels == 2); |
255 |
|
|
256 |
// get starting crossfade volume level |
// get starting crossfade volume level |
257 |
switch (pDimRgn->AttenuationController.type) { |
switch (pDimRgn->AttenuationController.type) { |
258 |
case ::gig::attenuation_ctrl_t::type_channelaftertouch: |
case ::gig::attenuation_ctrl_t::type_channelaftertouch: |
272 |
PanLeft = 1.0f - float(RTMath::Max(pDimRgn->Pan, 0)) / 63.0f; |
PanLeft = 1.0f - float(RTMath::Max(pDimRgn->Pan, 0)) / 63.0f; |
273 |
PanRight = 1.0f - float(RTMath::Min(pDimRgn->Pan, 0)) / -64.0f; |
PanRight = 1.0f - float(RTMath::Min(pDimRgn->Pan, 0)) / -64.0f; |
274 |
|
|
|
pSample = pDimRgn->pSample; // sample won't change until the voice is finished |
|
|
|
|
275 |
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) |
276 |
|
|
277 |
// Check if the sample needs disk streaming or is too short for that |
// Check if the sample needs disk streaming or is too short for that |
314 |
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 |
315 |
} |
} |
316 |
|
|
|
|
|
317 |
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) |
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) |
318 |
|
|
|
|
|
319 |
// setup EG 1 (VCA EG) |
// setup EG 1 (VCA EG) |
320 |
{ |
{ |
321 |
// get current value of EG1 controller |
// get current value of EG1 controller |
354 |
} |
} |
355 |
|
|
356 |
|
|
|
#if ENABLE_FILTER |
|
357 |
// setup EG 2 (VCF Cutoff EG) |
// setup EG 2 (VCF Cutoff EG) |
358 |
{ |
{ |
359 |
// get current value of EG2 controller |
// get current value of EG2 controller |
390 |
pDimRgn->EG2Release + eg2release, |
pDimRgn->EG2Release + eg2release, |
391 |
Delay); |
Delay); |
392 |
} |
} |
|
#endif // ENABLE_FILTER |
|
393 |
|
|
394 |
|
|
395 |
// setup EG 3 (VCO EG) |
// setup EG 3 (VCO EG) |
436 |
Delay); |
Delay); |
437 |
} |
} |
438 |
|
|
439 |
#if ENABLE_FILTER |
|
440 |
// setup LFO 2 (VCF Cutoff LFO) |
// setup LFO 2 (VCF Cutoff LFO) |
441 |
{ |
{ |
442 |
uint16_t lfo2_internal_depth; |
uint16_t lfo2_internal_depth; |
473 |
pEngine->SampleRate, |
pEngine->SampleRate, |
474 |
Delay); |
Delay); |
475 |
} |
} |
476 |
#endif // ENABLE_FILTER |
|
477 |
|
|
478 |
// setup LFO 3 (VCO LFO) |
// setup LFO 3 (VCO LFO) |
479 |
{ |
{ |
512 |
Delay); |
Delay); |
513 |
} |
} |
514 |
|
|
515 |
#if ENABLE_FILTER |
|
516 |
#if FORCE_FILTER_USAGE |
#if FORCE_FILTER_USAGE |
517 |
FilterLeft.Enabled = FilterRight.Enabled = true; |
SYNTHESIS_MODE_SET_FILTER(SynthesisMode, true); |
518 |
#else // use filter only if instrument file told so |
#else // use filter only if instrument file told so |
519 |
FilterLeft.Enabled = FilterRight.Enabled = pDimRgn->VCFEnabled; |
SYNTHESIS_MODE_SET_FILTER(SynthesisMode, pDimRgn->VCFEnabled); |
520 |
#endif // FORCE_FILTER_USAGE |
#endif // FORCE_FILTER_USAGE |
521 |
if (pDimRgn->VCFEnabled) { |
if (pDimRgn->VCFEnabled) { |
522 |
#ifdef OVERRIDE_FILTER_CUTOFF_CTRL |
#ifdef OVERRIDE_FILTER_CUTOFF_CTRL |
606 |
VCFCutoffCtrl.fvalue = cutoff - FILTER_CUTOFF_MIN; |
VCFCutoffCtrl.fvalue = cutoff - FILTER_CUTOFF_MIN; |
607 |
VCFResonanceCtrl.fvalue = resonance; |
VCFResonanceCtrl.fvalue = resonance; |
608 |
|
|
|
FilterLeft.SetParameters(cutoff, resonance, pEngine->SampleRate); |
|
|
FilterRight.SetParameters(cutoff, resonance, pEngine->SampleRate); |
|
|
|
|
609 |
FilterUpdateCounter = -1; |
FilterUpdateCounter = -1; |
610 |
} |
} |
611 |
else { |
else { |
612 |
VCFCutoffCtrl.controller = 0; |
VCFCutoffCtrl.controller = 0; |
613 |
VCFResonanceCtrl.controller = 0; |
VCFResonanceCtrl.controller = 0; |
614 |
} |
} |
|
#endif // ENABLE_FILTER |
|
615 |
|
|
616 |
return 0; // success |
return 0; // success |
617 |
} |
} |
629 |
*/ |
*/ |
630 |
void Voice::Render(uint Samples) { |
void Voice::Render(uint Samples) { |
631 |
|
|
632 |
|
// select default values for synthesis mode bits |
633 |
|
SYNTHESIS_MODE_SET_INTERPOLATE(SynthesisMode, (PitchBase * PitchBend) != 1.0f); |
634 |
|
SYNTHESIS_MODE_SET_CONSTPITCH(SynthesisMode, true); |
635 |
|
SYNTHESIS_MODE_SET_LOOP(SynthesisMode, false); |
636 |
|
|
637 |
// Reset the synthesis parameter matrix |
// Reset the synthesis parameter matrix |
638 |
|
|
639 |
pEngine->ResetSynthesisParameters(Event::destination_vca, this->Volume * this->CrossfadeVolume * pEngine->GlobalVolume); |
pEngine->ResetSynthesisParameters(Event::destination_vca, this->Volume * this->CrossfadeVolume * pEngine->GlobalVolume); |
640 |
pEngine->ResetSynthesisParameters(Event::destination_vco, this->PitchBase); |
pEngine->ResetSynthesisParameters(Event::destination_vco, this->PitchBase); |
|
#if ENABLE_FILTER |
|
641 |
pEngine->ResetSynthesisParameters(Event::destination_vcfc, VCFCutoffCtrl.fvalue); |
pEngine->ResetSynthesisParameters(Event::destination_vcfc, VCFCutoffCtrl.fvalue); |
642 |
pEngine->ResetSynthesisParameters(Event::destination_vcfr, VCFResonanceCtrl.fvalue); |
pEngine->ResetSynthesisParameters(Event::destination_vcfr, VCFResonanceCtrl.fvalue); |
|
#endif // ENABLE_FILTER |
|
|
|
|
643 |
|
|
644 |
// Apply events to the synthesis parameter matrix |
// Apply events to the synthesis parameter matrix |
645 |
ProcessEvents(Samples); |
ProcessEvents(Samples); |
646 |
|
|
|
|
|
647 |
// 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 |
648 |
pEG1->Process(Samples, pEngine->pMIDIKeyInfo[MIDIKey].pEvents, itTriggerEvent, this->Pos, this->PitchBase * this->PitchBend, itKillEvent); |
pEG1->Process(Samples, pEngine->pMIDIKeyInfo[MIDIKey].pEvents, itTriggerEvent, this->Pos, this->PitchBase * this->PitchBend, itKillEvent); |
|
#if ENABLE_FILTER |
|
649 |
pEG2->Process(Samples, pEngine->pMIDIKeyInfo[MIDIKey].pEvents, itTriggerEvent, this->Pos, this->PitchBase * this->PitchBend); |
pEG2->Process(Samples, pEngine->pMIDIKeyInfo[MIDIKey].pEvents, itTriggerEvent, this->Pos, this->PitchBase * this->PitchBend); |
650 |
#endif // ENABLE_FILTER |
if (pEG3->Process(Samples)) { // if pitch EG is active |
651 |
pEG3->Process(Samples); |
SYNTHESIS_MODE_SET_INTERPOLATE(SynthesisMode, true); |
652 |
|
SYNTHESIS_MODE_SET_CONSTPITCH(SynthesisMode, false); |
653 |
|
} |
654 |
pLFO1->Process(Samples); |
pLFO1->Process(Samples); |
|
#if ENABLE_FILTER |
|
655 |
pLFO2->Process(Samples); |
pLFO2->Process(Samples); |
656 |
#endif // ENABLE_FILTER |
if (pLFO3->Process(Samples)) { // if pitch LFO modulation is active |
657 |
pLFO3->Process(Samples); |
SYNTHESIS_MODE_SET_INTERPOLATE(SynthesisMode, true); |
658 |
|
SYNTHESIS_MODE_SET_CONSTPITCH(SynthesisMode, false); |
659 |
|
} |
|
#if ENABLE_FILTER |
|
|
CalculateBiquadParameters(Samples); // calculate the final biquad filter parameters |
|
|
#endif // ENABLE_FILTER |
|
660 |
|
|
661 |
|
if (SYNTHESIS_MODE_GET_FILTER(SynthesisMode)) |
662 |
|
CalculateBiquadParameters(Samples); // calculate the final biquad filter parameters |
663 |
|
|
664 |
switch (this->PlaybackState) { |
switch (this->PlaybackState) { |
665 |
|
|
666 |
case playback_state_ram: { |
case playback_state_ram: { |
667 |
if (RAMLoop) InterpolateAndLoop(Samples, (sample_t*) pSample->GetCache().pStart, Delay); |
if (RAMLoop) SYNTHESIS_MODE_SET_LOOP(SynthesisMode, true); // enable looping |
668 |
else InterpolateNoLoop(Samples, (sample_t*) pSample->GetCache().pStart, Delay); |
|
669 |
|
// render current fragment |
670 |
|
Synthesize(Samples, (sample_t*) pSample->GetCache().pStart, Delay); |
671 |
|
|
672 |
if (DiskVoice) { |
if (DiskVoice) { |
673 |
// check if we reached the allowed limit of the sample RAM cache |
// check if we reached the allowed limit of the sample RAM cache |
674 |
if (Pos > MaxRAMPos) { |
if (Pos > MaxRAMPos) { |
691 |
KillImmediately(); |
KillImmediately(); |
692 |
return; |
return; |
693 |
} |
} |
694 |
DiskStreamRef.pStream->IncrementReadPos(pSample->Channels * (RTMath::DoubleToInt(Pos) - MaxRAMPos)); |
DiskStreamRef.pStream->IncrementReadPos(pSample->Channels * (int(Pos) - MaxRAMPos)); |
695 |
Pos -= RTMath::DoubleToInt(Pos); |
Pos -= int(Pos); |
696 |
} |
} |
697 |
|
|
698 |
|
const int sampleWordsLeftToRead = DiskStreamRef.pStream->GetReadSpace(); |
699 |
|
|
700 |
// add silence sample at the end if we reached the end of the stream (for the interpolator) |
// add silence sample at the end if we reached the end of the stream (for the interpolator) |
701 |
if (DiskStreamRef.State == Stream::state_end && DiskStreamRef.pStream->GetReadSpace() < (pEngine->MaxSamplesPerCycle << MAX_PITCH) / pSample->Channels) { |
if (DiskStreamRef.State == Stream::state_end) { |
702 |
DiskStreamRef.pStream->WriteSilence((pEngine->MaxSamplesPerCycle << MAX_PITCH) / pSample->Channels); |
const int maxSampleWordsPerCycle = (pEngine->MaxSamplesPerCycle << MAX_PITCH) * pSample->Channels + 6; // +6 for the interpolator algorithm |
703 |
this->PlaybackState = playback_state_end; |
if (sampleWordsLeftToRead <= maxSampleWordsPerCycle) { |
704 |
|
DiskStreamRef.pStream->WriteSilence(maxSampleWordsPerCycle - sampleWordsLeftToRead); |
705 |
|
} |
706 |
} |
} |
707 |
|
|
708 |
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 |
709 |
InterpolateNoLoop(Samples, ptr, Delay); |
|
710 |
DiskStreamRef.pStream->IncrementReadPos(RTMath::DoubleToInt(Pos) * pSample->Channels); |
// render current audio fragment |
711 |
Pos -= RTMath::DoubleToInt(Pos); |
Synthesize(Samples, ptr, Delay); |
712 |
|
|
713 |
|
const int iPos = (int) Pos; |
714 |
|
const int readSampleWords = iPos * pSample->Channels; // amount of sample words actually been read |
715 |
|
DiskStreamRef.pStream->IncrementReadPos(readSampleWords); |
716 |
|
Pos -= iPos; // just keep fractional part of Pos |
717 |
|
|
718 |
|
// change state of voice to 'end' if we really reached the end of the sample data |
719 |
|
if (DiskStreamRef.State == Stream::state_end && readSampleWords >= sampleWordsLeftToRead) this->PlaybackState = playback_state_end; |
720 |
} |
} |
721 |
break; |
break; |
722 |
|
|
725 |
break; |
break; |
726 |
} |
} |
727 |
|
|
|
|
|
728 |
// Reset synthesis event lists (except VCO, as VCO events apply channel wide currently) |
// Reset synthesis event lists (except VCO, as VCO events apply channel wide currently) |
729 |
pEngine->pSynthesisEvents[Event::destination_vca]->clear(); |
pEngine->pSynthesisEvents[Event::destination_vca]->clear(); |
|
#if ENABLE_FILTER |
|
730 |
pEngine->pSynthesisEvents[Event::destination_vcfc]->clear(); |
pEngine->pSynthesisEvents[Event::destination_vcfc]->clear(); |
731 |
pEngine->pSynthesisEvents[Event::destination_vcfr]->clear(); |
pEngine->pSynthesisEvents[Event::destination_vcfr]->clear(); |
|
#endif // ENABLE_FILTER |
|
732 |
|
|
733 |
// Reset delay |
// Reset delay |
734 |
Delay = 0; |
Delay = 0; |
747 |
pLFO1->Reset(); |
pLFO1->Reset(); |
748 |
pLFO2->Reset(); |
pLFO2->Reset(); |
749 |
pLFO3->Reset(); |
pLFO3->Reset(); |
750 |
|
FilterLeft.Reset(); |
751 |
|
FilterRight.Reset(); |
752 |
DiskStreamRef.pStream = NULL; |
DiskStreamRef.pStream = NULL; |
753 |
DiskStreamRef.hStream = 0; |
DiskStreamRef.hStream = 0; |
754 |
DiskStreamRef.State = Stream::state_unused; |
DiskStreamRef.State = Stream::state_unused; |
774 |
} |
} |
775 |
while (itCCEvent) { |
while (itCCEvent) { |
776 |
if (itCCEvent->Param.CC.Controller) { // if valid MIDI controller |
if (itCCEvent->Param.CC.Controller) { // if valid MIDI controller |
|
#if ENABLE_FILTER |
|
777 |
if (itCCEvent->Param.CC.Controller == VCFCutoffCtrl.controller) { |
if (itCCEvent->Param.CC.Controller == VCFCutoffCtrl.controller) { |
778 |
*pEngine->pSynthesisEvents[Event::destination_vcfc]->allocAppend() = *itCCEvent; |
*pEngine->pSynthesisEvents[Event::destination_vcfc]->allocAppend() = *itCCEvent; |
779 |
} |
} |
780 |
if (itCCEvent->Param.CC.Controller == VCFResonanceCtrl.controller) { |
if (itCCEvent->Param.CC.Controller == VCFResonanceCtrl.controller) { |
781 |
*pEngine->pSynthesisEvents[Event::destination_vcfr]->allocAppend() = *itCCEvent; |
*pEngine->pSynthesisEvents[Event::destination_vcfr]->allocAppend() = *itCCEvent; |
782 |
} |
} |
|
#endif // ENABLE_FILTER |
|
783 |
if (itCCEvent->Param.CC.Controller == pLFO1->ExtController) { |
if (itCCEvent->Param.CC.Controller == pLFO1->ExtController) { |
784 |
pLFO1->SendEvent(itCCEvent); |
pLFO1->SendEvent(itCCEvent); |
785 |
} |
} |
|
#if ENABLE_FILTER |
|
786 |
if (itCCEvent->Param.CC.Controller == pLFO2->ExtController) { |
if (itCCEvent->Param.CC.Controller == pLFO2->ExtController) { |
787 |
pLFO2->SendEvent(itCCEvent); |
pLFO2->SendEvent(itCCEvent); |
788 |
} |
} |
|
#endif // ENABLE_FILTER |
|
789 |
if (itCCEvent->Param.CC.Controller == pLFO3->ExtController) { |
if (itCCEvent->Param.CC.Controller == pLFO3->ExtController) { |
790 |
pLFO3->SendEvent(itCCEvent); |
pLFO3->SendEvent(itCCEvent); |
791 |
} |
} |
830 |
|
|
831 |
itVCOEvent = itNextVCOEvent; |
itVCOEvent = itNextVCOEvent; |
832 |
} |
} |
833 |
if (!pVCOEventList->isEmpty()) this->PitchBend = pitch; |
if (!pVCOEventList->isEmpty()) { |
834 |
|
this->PitchBend = pitch; |
835 |
|
SYNTHESIS_MODE_SET_INTERPOLATE(SynthesisMode, true); |
836 |
|
SYNTHESIS_MODE_SET_CONSTPITCH(SynthesisMode, false); |
837 |
|
} |
838 |
} |
} |
839 |
|
|
840 |
// 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 !) |
866 |
if (!pVCAEventList->isEmpty()) this->CrossfadeVolume = crossfadevolume; |
if (!pVCAEventList->isEmpty()) this->CrossfadeVolume = crossfadevolume; |
867 |
} |
} |
868 |
|
|
|
#if ENABLE_FILTER |
|
869 |
// process filter cutoff events |
// process filter cutoff events |
870 |
{ |
{ |
871 |
RTList<Event>* pCutoffEventList = pEngine->pSynthesisEvents[Event::destination_vcfc]; |
RTList<Event>* pCutoffEventList = pEngine->pSynthesisEvents[Event::destination_vcfc]; |
922 |
} |
} |
923 |
if (!pResonanceEventList->isEmpty()) VCFResonanceCtrl.fvalue = pResonanceEventList->last()->Param.CC.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 |
924 |
} |
} |
|
#endif // ENABLE_FILTER |
|
925 |
} |
} |
926 |
|
|
|
#if ENABLE_FILTER |
|
927 |
/** |
/** |
928 |
* Calculate all necessary, final biquad filter parameters. |
* Calculate all necessary, final biquad filter parameters. |
929 |
* |
* |
930 |
* @param Samples - number of samples to be rendered in this audio fragment cycle |
* @param Samples - number of samples to be rendered in this audio fragment cycle |
931 |
*/ |
*/ |
932 |
void Voice::CalculateBiquadParameters(uint Samples) { |
void Voice::CalculateBiquadParameters(uint Samples) { |
|
if (!FilterLeft.Enabled) return; |
|
|
|
|
933 |
biquad_param_t bqbase; |
biquad_param_t bqbase; |
934 |
biquad_param_t bqmain; |
biquad_param_t bqmain; |
935 |
float prev_cutoff = pEngine->pSynthesisParameters[Event::destination_vcfc][0]; |
float prev_cutoff = pEngine->pSynthesisParameters[Event::destination_vcfc][0]; |
936 |
float prev_res = pEngine->pSynthesisParameters[Event::destination_vcfr][0]; |
float prev_res = pEngine->pSynthesisParameters[Event::destination_vcfr][0]; |
937 |
FilterLeft.SetParameters(&bqbase, &bqmain, prev_cutoff, prev_res, pEngine->SampleRate); |
FilterLeft.SetParameters(&bqbase, &bqmain, prev_cutoff, prev_res, pEngine->SampleRate); |
938 |
|
FilterRight.SetParameters(&bqbase, &bqmain, prev_cutoff, prev_res, pEngine->SampleRate); |
939 |
pEngine->pBasicFilterParameters[0] = bqbase; |
pEngine->pBasicFilterParameters[0] = bqbase; |
940 |
pEngine->pMainFilterParameters[0] = bqmain; |
pEngine->pMainFilterParameters[0] = bqmain; |
941 |
|
|
942 |
float* bq; |
float* bq; |
943 |
for (int i = 1; i < Samples; i++) { |
for (int i = 1; i < Samples; i++) { |
944 |
// recalculate biquad parameters if cutoff or resonance differ from previous sample point |
// recalculate biquad parameters if cutoff or resonance differ from previous sample point |
945 |
if (!(i & FILTER_UPDATE_MASK)) if (pEngine->pSynthesisParameters[Event::destination_vcfr][i] != prev_res || |
if (!(i & FILTER_UPDATE_MASK)) { |
946 |
pEngine->pSynthesisParameters[Event::destination_vcfc][i] != prev_cutoff) { |
if (pEngine->pSynthesisParameters[Event::destination_vcfr][i] != prev_res || |
947 |
prev_cutoff = pEngine->pSynthesisParameters[Event::destination_vcfc][i]; |
pEngine->pSynthesisParameters[Event::destination_vcfc][i] != prev_cutoff) |
948 |
prev_res = pEngine->pSynthesisParameters[Event::destination_vcfr][i]; |
{ |
949 |
FilterLeft.SetParameters(&bqbase, &bqmain, prev_cutoff, prev_res, pEngine->SampleRate); |
prev_cutoff = pEngine->pSynthesisParameters[Event::destination_vcfc][i]; |
950 |
|
prev_res = pEngine->pSynthesisParameters[Event::destination_vcfr][i]; |
951 |
|
FilterLeft.SetParameters(&bqbase, &bqmain, prev_cutoff, prev_res, pEngine->SampleRate); |
952 |
|
FilterRight.SetParameters(&bqbase, &bqmain, prev_cutoff, prev_res, pEngine->SampleRate); |
953 |
|
} |
954 |
} |
} |
955 |
|
|
956 |
//same as 'pEngine->pBasicFilterParameters[i] = bqbase;' |
//same as 'pEngine->pBasicFilterParameters[i] = bqbase;' |
957 |
bq = (float*) &pEngine->pBasicFilterParameters[i]; |
bq = (float*) &pEngine->pBasicFilterParameters[i]; |
958 |
bq[0] = bqbase.a1; |
bq[0] = bqbase.b0; |
959 |
bq[1] = bqbase.a2; |
bq[1] = bqbase.b1; |
960 |
bq[2] = bqbase.b0; |
bq[2] = bqbase.b2; |
961 |
bq[3] = bqbase.b1; |
bq[3] = bqbase.a1; |
962 |
bq[4] = bqbase.b2; |
bq[4] = bqbase.a2; |
963 |
|
|
964 |
// same as 'pEngine->pMainFilterParameters[i] = bqmain;' |
// same as 'pEngine->pMainFilterParameters[i] = bqmain;' |
965 |
bq = (float*) &pEngine->pMainFilterParameters[i]; |
bq = (float*) &pEngine->pMainFilterParameters[i]; |
966 |
bq[0] = bqmain.a1; |
bq[0] = bqmain.b0; |
967 |
bq[1] = bqmain.a2; |
bq[1] = bqmain.b1; |
968 |
bq[2] = bqmain.b0; |
bq[2] = bqmain.b2; |
969 |
bq[3] = bqmain.b1; |
bq[3] = bqmain.a1; |
970 |
bq[4] = bqmain.b2; |
bq[4] = bqmain.a2; |
971 |
} |
} |
972 |
} |
} |
|
#endif // ENABLE_FILTER |
|
973 |
|
|
974 |
/** |
/** |
975 |
* Interpolates the input audio data (without looping). |
* Synthesizes the current audio fragment for this voice. |
976 |
* |
* |
977 |
* @param Samples - number of sample points to be rendered in this audio |
* @param Samples - number of sample points to be rendered in this audio |
978 |
* fragment cycle |
* fragment cycle |
979 |
* @param pSrc - pointer to input sample data |
* @param pSrc - pointer to input sample data |
980 |
* @param Skip - number of sample points to skip in output buffer |
* @param Skip - number of sample points to skip in output buffer |
981 |
*/ |
*/ |
982 |
void Voice::InterpolateNoLoop(uint Samples, sample_t* pSrc, uint Skip) { |
void Voice::Synthesize(uint Samples, sample_t* pSrc, int Skip) { |
983 |
int i = Skip; |
UpdateSynthesisMode(); |
984 |
|
SynthesizeFragment_Fn* f = (SynthesizeFragment_Fn*) SynthesizeFragmentFnPtr; |
985 |
// FIXME: assuming either mono or stereo |
f(*this, Samples, pSrc, Skip); |
|
if (this->pSample->Channels == 2) { // Stereo Sample |
|
|
while (i < Samples) InterpolateStereo(pSrc, i); |
|
|
} |
|
|
else { // Mono Sample |
|
|
while (i < Samples) InterpolateMono(pSrc, i); |
|
|
} |
|
986 |
} |
} |
987 |
|
|
988 |
/** |
/** |
989 |
* Interpolates the input audio data, this method honors looping. |
* Determine the respective synthesis function for the given synthesis |
990 |
* |
* mode. |
|
* @param Samples - number of sample points to be rendered in this audio |
|
|
* fragment cycle |
|
|
* @param pSrc - pointer to input sample data |
|
|
* @param Skip - number of sample points to skip in output buffer |
|
991 |
*/ |
*/ |
992 |
void Voice::InterpolateAndLoop(uint Samples, sample_t* pSrc, uint Skip) { |
void Voice::UpdateSynthesisMode() { |
993 |
int i = Skip; |
SynthesizeFragmentFnPtr = GetSynthesisFunction(SynthesisMode); |
|
|
|
|
// FIXME: assuming either mono or stereo |
|
|
if (pSample->Channels == 2) { // Stereo Sample |
|
|
if (pSample->LoopPlayCount) { |
|
|
// render loop (loop count limited) |
|
|
while (i < Samples && LoopCyclesLeft) { |
|
|
InterpolateStereo(pSrc, i); |
|
|
if (Pos > pSample->LoopEnd) { |
|
|
Pos = pSample->LoopStart + fmod(Pos - pSample->LoopEnd, pSample->LoopSize);; |
|
|
LoopCyclesLeft--; |
|
|
} |
|
|
} |
|
|
// render on without loop |
|
|
while (i < Samples) InterpolateStereo(pSrc, i); |
|
|
} |
|
|
else { // render loop (endless loop) |
|
|
while (i < Samples) { |
|
|
InterpolateStereo(pSrc, i); |
|
|
if (Pos > pSample->LoopEnd) { |
|
|
Pos = pSample->LoopStart + fmod(Pos - pSample->LoopEnd, pSample->LoopSize); |
|
|
} |
|
|
} |
|
|
} |
|
|
} |
|
|
else { // Mono Sample |
|
|
if (pSample->LoopPlayCount) { |
|
|
// render loop (loop count limited) |
|
|
while (i < Samples && LoopCyclesLeft) { |
|
|
InterpolateMono(pSrc, i); |
|
|
if (Pos > pSample->LoopEnd) { |
|
|
Pos = pSample->LoopStart + fmod(Pos - pSample->LoopEnd, pSample->LoopSize);; |
|
|
LoopCyclesLeft--; |
|
|
} |
|
|
} |
|
|
// render on without loop |
|
|
while (i < Samples) InterpolateMono(pSrc, i); |
|
|
} |
|
|
else { // render loop (endless loop) |
|
|
while (i < Samples) { |
|
|
InterpolateMono(pSrc, i); |
|
|
if (Pos > pSample->LoopEnd) { |
|
|
Pos = pSample->LoopStart + fmod(Pos - pSample->LoopEnd, pSample->LoopSize);; |
|
|
} |
|
|
} |
|
|
} |
|
|
} |
|
994 |
} |
} |
995 |
|
|
996 |
/** |
/** |
1018 |
* @param itKillEvent - event which caused the voice to be killed |
* @param itKillEvent - event which caused the voice to be killed |
1019 |
*/ |
*/ |
1020 |
void Voice::Kill(Pool<Event>::Iterator& itKillEvent) { |
void Voice::Kill(Pool<Event>::Iterator& itKillEvent) { |
1021 |
|
//FIXME: just two sanity checks for debugging, can be removed |
1022 |
|
if (!itKillEvent) dmsg(1,("gig::Voice::Kill(): ERROR, !itKillEvent !!!\n")); |
1023 |
|
if (itKillEvent && !itKillEvent.isValid()) dmsg(1,("gig::Voice::Kill(): ERROR, itKillEvent invalid !!!\n")); |
1024 |
|
|
1025 |
if (itTriggerEvent && itKillEvent->FragmentPos() <= itTriggerEvent->FragmentPos()) return; |
if (itTriggerEvent && itKillEvent->FragmentPos() <= itTriggerEvent->FragmentPos()) return; |
1026 |
this->itKillEvent = itKillEvent; |
this->itKillEvent = itKillEvent; |
1027 |
} |
} |