22 |
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23 |
#include "EGADSR.h" |
#include "EGADSR.h" |
24 |
#include "Manipulator.h" |
#include "Manipulator.h" |
25 |
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#include "../../common/Features.h" |
26 |
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#include "Synthesizer.h" |
27 |
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28 |
#include "Voice.h" |
#include "Voice.h" |
29 |
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47 |
Voice::Voice() { |
Voice::Voice() { |
48 |
pEngine = NULL; |
pEngine = NULL; |
49 |
pDiskThread = NULL; |
pDiskThread = NULL; |
50 |
Active = false; |
PlaybackState = playback_state_end; |
51 |
pEG1 = NULL; |
pEG1 = NULL; |
52 |
pEG2 = NULL; |
pEG2 = NULL; |
53 |
pEG3 = NULL; |
pEG3 = NULL; |
58 |
pLFO2 = NULL; |
pLFO2 = NULL; |
59 |
pLFO3 = NULL; |
pLFO3 = NULL; |
60 |
KeyGroup = 0; |
KeyGroup = 0; |
61 |
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SynthesisMode = 0; // set all mode bits to 0 first |
62 |
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// select synthesis implementation (currently either pure C++ or MMX+SSE(1)) |
63 |
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#if ARCH_X86 |
64 |
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SYNTHESIS_MODE_SET_IMPLEMENTATION(SynthesisMode, Features::supportsMMX() && Features::supportsSSE()); |
65 |
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#else |
66 |
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SYNTHESIS_MODE_SET_IMPLEMENTATION(SynthesisMode, false); |
67 |
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#endif |
68 |
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SYNTHESIS_MODE_SET_PROFILING(SynthesisMode, true); |
69 |
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70 |
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FilterLeft.Reset(); |
71 |
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FilterRight.Reset(); |
72 |
} |
} |
73 |
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74 |
Voice::~Voice() { |
Voice::~Voice() { |
116 |
* Initializes and triggers the voice, a disk stream will be launched if |
* Initializes and triggers the voice, a disk stream will be launched if |
117 |
* needed. |
* needed. |
118 |
* |
* |
119 |
* @param pNoteOnEvent - event that caused triggering of this voice |
* @param itNoteOnEvent - event that caused triggering of this voice |
120 |
* @param PitchBend - MIDI detune factor (-8192 ... +8191) |
* @param PitchBend - MIDI detune factor (-8192 ... +8191) |
121 |
* @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 |
122 |
* @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) |
123 |
* @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) |
124 |
* @returns 0 on success, a value < 0 if something failed |
* @param VoiceStealing - wether the voice is allowed to steal voices for further subvoices |
125 |
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* @returns 0 on success, a value < 0 if the voice wasn't triggered |
126 |
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* (either due to an error or e.g. because no region is |
127 |
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* defined for the given key) |
128 |
*/ |
*/ |
129 |
int Voice::Trigger(Event* pNoteOnEvent, 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) { |
130 |
if (!pInstrument) { |
if (!pInstrument) { |
131 |
dmsg(1,("voice::trigger: !pInstrument\n")); |
dmsg(1,("voice::trigger: !pInstrument\n")); |
132 |
exit(EXIT_FAILURE); |
exit(EXIT_FAILURE); |
133 |
} |
} |
134 |
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if (itNoteOnEvent->FragmentPos() > pEngine->MaxSamplesPerCycle) { // FIXME: should be removed before the final release (purpose: just a sanity check for debugging) |
135 |
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dmsg(1,("Voice::Trigger(): ERROR, TriggerDelay > Totalsamples\n")); |
136 |
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} |
137 |
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138 |
Type = type_normal; |
Type = type_normal; |
139 |
Active = true; |
MIDIKey = itNoteOnEvent->Param.Note.Key; |
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MIDIKey = pNoteOnEvent->Param.Note.Key; |
|
140 |
pRegion = pInstrument->GetRegion(MIDIKey); |
pRegion = pInstrument->GetRegion(MIDIKey); |
141 |
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 |
142 |
Delay = pNoteOnEvent->FragmentPos(); |
Delay = itNoteOnEvent->FragmentPos(); |
143 |
pTriggerEvent = pNoteOnEvent; |
itTriggerEvent = itNoteOnEvent; |
144 |
pKillEvent = NULL; |
itKillEvent = Pool<Event>::Iterator(); |
145 |
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itChildVoice = Pool<Voice>::Iterator(); |
146 |
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147 |
if (!pRegion) { |
if (!pRegion) { |
148 |
std::cerr << "gig::Voice: No Region defined for MIDI key " << MIDIKey << std::endl << std::flush; |
dmsg(4, ("gig::Voice: No Region defined for MIDI key %d\n", MIDIKey)); |
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KillImmediately(); |
|
149 |
return -1; |
return -1; |
150 |
} |
} |
151 |
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153 |
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154 |
// get current dimension values to select the right dimension region |
// get current dimension values to select the right dimension region |
155 |
//FIXME: controller values for selecting the dimension region here are currently not sample accurate |
//FIXME: controller values for selecting the dimension region here are currently not sample accurate |
156 |
uint DimValues[5] = {0,0,0,0,0}; |
uint DimValues[8] = { 0 }; |
157 |
for (int i = pRegion->Dimensions - 1; i >= 0; i--) { |
for (int i = pRegion->Dimensions - 1; i >= 0; i--) { |
158 |
switch (pRegion->pDimensionDefinitions[i].dimension) { |
switch (pRegion->pDimensionDefinitions[i].dimension) { |
159 |
case ::gig::dimension_samplechannel: |
case ::gig::dimension_samplechannel: |
164 |
// 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 |
165 |
if (iLayer == 0) |
if (iLayer == 0) |
166 |
for (int iNewLayer = 1; iNewLayer < pRegion->pDimensionDefinitions[i].zones; iNewLayer++) |
for (int iNewLayer = 1; iNewLayer < pRegion->pDimensionDefinitions[i].zones; iNewLayer++) |
167 |
pEngine->LaunchVoice(pNoteOnEvent, iNewLayer, ReleaseTriggerVoice); |
itChildVoice = pEngine->LaunchVoice(itNoteOnEvent, iNewLayer, ReleaseTriggerVoice, VoiceStealing); |
168 |
break; |
break; |
169 |
case ::gig::dimension_velocity: |
case ::gig::dimension_velocity: |
170 |
DimValues[i] = pNoteOnEvent->Param.Note.Velocity; |
DimValues[i] = itNoteOnEvent->Param.Note.Velocity; |
171 |
break; |
break; |
172 |
case ::gig::dimension_channelaftertouch: |
case ::gig::dimension_channelaftertouch: |
173 |
DimValues[i] = 0; //TODO: we currently ignore this dimension |
DimValues[i] = 0; //TODO: we currently ignore this dimension |
177 |
DimValues[i] = (uint) ReleaseTriggerVoice; |
DimValues[i] = (uint) ReleaseTriggerVoice; |
178 |
break; |
break; |
179 |
case ::gig::dimension_keyboard: |
case ::gig::dimension_keyboard: |
180 |
DimValues[i] = (uint) pNoteOnEvent->Param.Note.Key; |
DimValues[i] = (uint) pEngine->CurrentKeyDimension; |
181 |
break; |
break; |
182 |
case ::gig::dimension_modwheel: |
case ::gig::dimension_modwheel: |
183 |
DimValues[i] = pEngine->ControllerTable[1]; |
DimValues[i] = pEngine->ControllerTable[1]; |
255 |
std::cerr << "gig::Voice::Trigger() Error: Unknown dimension\n" << std::flush; |
std::cerr << "gig::Voice::Trigger() Error: Unknown dimension\n" << std::flush; |
256 |
} |
} |
257 |
} |
} |
258 |
pDimRgn = pRegion->GetDimensionRegionByValue(DimValues[4],DimValues[3],DimValues[2],DimValues[1],DimValues[0]); |
pDimRgn = pRegion->GetDimensionRegionByValue(DimValues); |
259 |
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260 |
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pSample = pDimRgn->pSample; // sample won't change until the voice is finished |
261 |
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if (!pSample || !pSample->SamplesTotal) return -1; // no need to continue if sample is silent |
262 |
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263 |
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// select channel mode (mono or stereo) |
264 |
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SYNTHESIS_MODE_SET_CHANNELS(SynthesisMode, pSample->Channels == 2); |
265 |
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266 |
// get starting crossfade volume level |
// get starting crossfade volume level |
267 |
switch (pDimRgn->AttenuationController.type) { |
switch (pDimRgn->AttenuationController.type) { |
269 |
CrossfadeVolume = 1.0f; //TODO: aftertouch not supported yet |
CrossfadeVolume = 1.0f; //TODO: aftertouch not supported yet |
270 |
break; |
break; |
271 |
case ::gig::attenuation_ctrl_t::type_velocity: |
case ::gig::attenuation_ctrl_t::type_velocity: |
272 |
CrossfadeVolume = CrossfadeAttenuation(pNoteOnEvent->Param.Note.Velocity); |
CrossfadeVolume = CrossfadeAttenuation(itNoteOnEvent->Param.Note.Velocity); |
273 |
break; |
break; |
274 |
case ::gig::attenuation_ctrl_t::type_controlchange: //FIXME: currently not sample accurate |
case ::gig::attenuation_ctrl_t::type_controlchange: //FIXME: currently not sample accurate |
275 |
CrossfadeVolume = CrossfadeAttenuation(pEngine->ControllerTable[pDimRgn->AttenuationController.controller_number]); |
CrossfadeVolume = CrossfadeAttenuation(pEngine->ControllerTable[pDimRgn->AttenuationController.controller_number]); |
279 |
CrossfadeVolume = 1.0f; |
CrossfadeVolume = 1.0f; |
280 |
} |
} |
281 |
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282 |
const float fpan = float(RTMath::Max(RTMath::Min(pDimRgn->Pan, 63), -64)) / 64.0f; |
PanLeft = 1.0f - float(RTMath::Max(pDimRgn->Pan, 0)) / 63.0f; |
283 |
PanLeft = 1.0f - fpan; |
PanRight = 1.0f - float(RTMath::Min(pDimRgn->Pan, 0)) / -64.0f; |
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PanRight = 1.0f + fpan; |
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pSample = pDimRgn->pSample; // sample won't change until the voice is finished |
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284 |
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285 |
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) |
286 |
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318 |
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319 |
// calculate initial pitch value |
// calculate initial pitch value |
320 |
{ |
{ |
321 |
double pitchbasecents = pDimRgn->FineTune * 10 + (int) pEngine->ScaleTuning[MIDIKey % 12]; |
double pitchbasecents = pDimRgn->FineTune + (int) pEngine->ScaleTuning[MIDIKey % 12]; |
322 |
if (pDimRgn->PitchTrack) pitchbasecents += (MIDIKey - (int) pDimRgn->UnityNote) * 100; |
if (pDimRgn->PitchTrack) pitchbasecents += (MIDIKey - (int) pDimRgn->UnityNote) * 100; |
323 |
this->PitchBase = RTMath::CentsToFreqRatio(pitchbasecents) * (double(pSample->SamplesPerSecond) / double(pEngine->pAudioOutputDevice->SampleRate())); |
this->PitchBase = RTMath::CentsToFreqRatio(pitchbasecents) * (double(pSample->SamplesPerSecond) / double(pEngine->pAudioOutputDevice->SampleRate())); |
324 |
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 |
325 |
} |
} |
326 |
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327 |
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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) |
328 |
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329 |
Volume = pDimRgn->GetVelocityAttenuation(pNoteOnEvent->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->SampleAttenuation; |
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330 |
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331 |
// setup EG 1 (VCA EG) |
// setup EG 1 (VCA EG) |
332 |
{ |
{ |
340 |
eg1controllervalue = 0; // TODO: aftertouch not yet supported |
eg1controllervalue = 0; // TODO: aftertouch not yet supported |
341 |
break; |
break; |
342 |
case ::gig::eg1_ctrl_t::type_velocity: |
case ::gig::eg1_ctrl_t::type_velocity: |
343 |
eg1controllervalue = pNoteOnEvent->Param.Note.Velocity; |
eg1controllervalue = itNoteOnEvent->Param.Note.Velocity; |
344 |
break; |
break; |
345 |
case ::gig::eg1_ctrl_t::type_controlchange: // MIDI control change controller |
case ::gig::eg1_ctrl_t::type_controlchange: // MIDI control change controller |
346 |
eg1controllervalue = pEngine->ControllerTable[pDimRgn->EG1Controller.controller_number]; |
eg1controllervalue = pEngine->ControllerTable[pDimRgn->EG1Controller.controller_number]; |
366 |
} |
} |
367 |
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368 |
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#if ENABLE_FILTER |
|
369 |
// setup EG 2 (VCF Cutoff EG) |
// setup EG 2 (VCF Cutoff EG) |
370 |
{ |
{ |
371 |
// get current value of EG2 controller |
// get current value of EG2 controller |
378 |
eg2controllervalue = 0; // TODO: aftertouch not yet supported |
eg2controllervalue = 0; // TODO: aftertouch not yet supported |
379 |
break; |
break; |
380 |
case ::gig::eg2_ctrl_t::type_velocity: |
case ::gig::eg2_ctrl_t::type_velocity: |
381 |
eg2controllervalue = pNoteOnEvent->Param.Note.Velocity; |
eg2controllervalue = itNoteOnEvent->Param.Note.Velocity; |
382 |
break; |
break; |
383 |
case ::gig::eg2_ctrl_t::type_controlchange: // MIDI control change controller |
case ::gig::eg2_ctrl_t::type_controlchange: // MIDI control change controller |
384 |
eg2controllervalue = pEngine->ControllerTable[pDimRgn->EG2Controller.controller_number]; |
eg2controllervalue = pEngine->ControllerTable[pDimRgn->EG2Controller.controller_number]; |
402 |
pDimRgn->EG2Release + eg2release, |
pDimRgn->EG2Release + eg2release, |
403 |
Delay); |
Delay); |
404 |
} |
} |
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#endif // ENABLE_FILTER |
|
405 |
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406 |
|
|
407 |
// setup EG 3 (VCO EG) |
// setup EG 3 (VCO EG) |
448 |
Delay); |
Delay); |
449 |
} |
} |
450 |
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|
451 |
#if ENABLE_FILTER |
|
452 |
// setup LFO 2 (VCF Cutoff LFO) |
// setup LFO 2 (VCF Cutoff LFO) |
453 |
{ |
{ |
454 |
uint16_t lfo2_internal_depth; |
uint16_t lfo2_internal_depth; |
485 |
pEngine->SampleRate, |
pEngine->SampleRate, |
486 |
Delay); |
Delay); |
487 |
} |
} |
488 |
#endif // ENABLE_FILTER |
|
489 |
|
|
490 |
// setup LFO 3 (VCO LFO) |
// setup LFO 3 (VCO LFO) |
491 |
{ |
{ |
524 |
Delay); |
Delay); |
525 |
} |
} |
526 |
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527 |
#if ENABLE_FILTER |
|
528 |
#if FORCE_FILTER_USAGE |
#if FORCE_FILTER_USAGE |
529 |
FilterLeft.Enabled = FilterRight.Enabled = true; |
const bool bUseFilter = true; |
530 |
#else // use filter only if instrument file told so |
#else // use filter only if instrument file told so |
531 |
FilterLeft.Enabled = FilterRight.Enabled = pDimRgn->VCFEnabled; |
const bool bUseFilter = pDimRgn->VCFEnabled; |
532 |
#endif // FORCE_FILTER_USAGE |
#endif // FORCE_FILTER_USAGE |
533 |
if (pDimRgn->VCFEnabled) { |
SYNTHESIS_MODE_SET_FILTER(SynthesisMode, bUseFilter); |
534 |
|
if (bUseFilter) { |
535 |
#ifdef OVERRIDE_FILTER_CUTOFF_CTRL |
#ifdef OVERRIDE_FILTER_CUTOFF_CTRL |
536 |
VCFCutoffCtrl.controller = OVERRIDE_FILTER_CUTOFF_CTRL; |
VCFCutoffCtrl.controller = OVERRIDE_FILTER_CUTOFF_CTRL; |
537 |
#else // use the one defined in the instrument file |
#else // use the one defined in the instrument file |
606 |
|
|
607 |
// calculate cutoff frequency |
// calculate cutoff frequency |
608 |
float cutoff = (!VCFCutoffCtrl.controller) |
float cutoff = (!VCFCutoffCtrl.controller) |
609 |
? exp((float) (127 - pNoteOnEvent->Param.Note.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 |
610 |
: exp((float) VCFCutoffCtrl.value * 0.00787402f * FILTER_CUTOFF_COEFF) * FILTER_CUTOFF_MAX; |
: exp((float) VCFCutoffCtrl.value * 0.00787402f * FILTER_CUTOFF_COEFF) * FILTER_CUTOFF_MAX; |
611 |
|
|
612 |
// calculate resonance |
// calculate resonance |
613 |
float resonance = (float) VCFResonanceCtrl.value * 0.00787f; // 0.0..1.0 |
float resonance = (float) VCFResonanceCtrl.value * 0.00787f; // 0.0..1.0 |
614 |
if (pDimRgn->VCFKeyboardTracking) { |
if (pDimRgn->VCFKeyboardTracking) { |
615 |
resonance += (float) (pNoteOnEvent->Param.Note.Key - pDimRgn->VCFKeyboardTrackingBreakpoint) * 0.00787f; |
resonance += (float) (itNoteOnEvent->Param.Note.Key - pDimRgn->VCFKeyboardTrackingBreakpoint) * 0.00787f; |
616 |
} |
} |
617 |
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) |
618 |
|
|
619 |
VCFCutoffCtrl.fvalue = cutoff - FILTER_CUTOFF_MIN; |
VCFCutoffCtrl.fvalue = cutoff - FILTER_CUTOFF_MIN; |
620 |
VCFResonanceCtrl.fvalue = resonance; |
VCFResonanceCtrl.fvalue = resonance; |
621 |
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FilterLeft.SetParameters(cutoff, resonance, pEngine->SampleRate); |
|
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FilterRight.SetParameters(cutoff, resonance, pEngine->SampleRate); |
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|
622 |
FilterUpdateCounter = -1; |
FilterUpdateCounter = -1; |
623 |
} |
} |
624 |
else { |
else { |
625 |
VCFCutoffCtrl.controller = 0; |
VCFCutoffCtrl.controller = 0; |
626 |
VCFResonanceCtrl.controller = 0; |
VCFResonanceCtrl.controller = 0; |
627 |
} |
} |
|
#endif // ENABLE_FILTER |
|
628 |
|
|
629 |
return 0; // success |
return 0; // success |
630 |
} |
} |
642 |
*/ |
*/ |
643 |
void Voice::Render(uint Samples) { |
void Voice::Render(uint Samples) { |
644 |
|
|
645 |
|
// select default values for synthesis mode bits |
646 |
|
SYNTHESIS_MODE_SET_INTERPOLATE(SynthesisMode, (PitchBase * PitchBend) != 1.0f); |
647 |
|
SYNTHESIS_MODE_SET_CONSTPITCH(SynthesisMode, true); |
648 |
|
SYNTHESIS_MODE_SET_LOOP(SynthesisMode, false); |
649 |
|
|
650 |
// Reset the synthesis parameter matrix |
// Reset the synthesis parameter matrix |
651 |
|
|
652 |
pEngine->ResetSynthesisParameters(Event::destination_vca, this->Volume * this->CrossfadeVolume * pEngine->GlobalVolume); |
pEngine->ResetSynthesisParameters(Event::destination_vca, this->Volume * this->CrossfadeVolume * pEngine->GlobalVolume); |
653 |
pEngine->ResetSynthesisParameters(Event::destination_vco, this->PitchBase); |
pEngine->ResetSynthesisParameters(Event::destination_vco, this->PitchBase); |
|
#if ENABLE_FILTER |
|
654 |
pEngine->ResetSynthesisParameters(Event::destination_vcfc, VCFCutoffCtrl.fvalue); |
pEngine->ResetSynthesisParameters(Event::destination_vcfc, VCFCutoffCtrl.fvalue); |
655 |
pEngine->ResetSynthesisParameters(Event::destination_vcfr, VCFResonanceCtrl.fvalue); |
pEngine->ResetSynthesisParameters(Event::destination_vcfr, VCFResonanceCtrl.fvalue); |
|
#endif // ENABLE_FILTER |
|
|
|
|
656 |
|
|
657 |
// Apply events to the synthesis parameter matrix |
// Apply events to the synthesis parameter matrix |
658 |
ProcessEvents(Samples); |
ProcessEvents(Samples); |
659 |
|
|
|
|
|
660 |
// 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 |
661 |
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); |
662 |
#if ENABLE_FILTER |
pEG2->Process(Samples, pEngine->pMIDIKeyInfo[MIDIKey].pEvents, itTriggerEvent, this->Pos, this->PitchBase * this->PitchBend); |
663 |
pEG2->Process(Samples, pEngine->pMIDIKeyInfo[MIDIKey].pEvents, pTriggerEvent, this->Pos, this->PitchBase * this->PitchBend); |
if (pEG3->Process(Samples)) { // if pitch EG is active |
664 |
#endif // ENABLE_FILTER |
SYNTHESIS_MODE_SET_INTERPOLATE(SynthesisMode, true); |
665 |
pEG3->Process(Samples); |
SYNTHESIS_MODE_SET_CONSTPITCH(SynthesisMode, false); |
666 |
|
} |
667 |
pLFO1->Process(Samples); |
pLFO1->Process(Samples); |
|
#if ENABLE_FILTER |
|
668 |
pLFO2->Process(Samples); |
pLFO2->Process(Samples); |
669 |
#endif // ENABLE_FILTER |
if (pLFO3->Process(Samples)) { // if pitch LFO modulation is active |
670 |
pLFO3->Process(Samples); |
SYNTHESIS_MODE_SET_INTERPOLATE(SynthesisMode, true); |
671 |
|
SYNTHESIS_MODE_SET_CONSTPITCH(SynthesisMode, false); |
672 |
|
} |
|
#if ENABLE_FILTER |
|
|
CalculateBiquadParameters(Samples); // calculate the final biquad filter parameters |
|
|
#endif // ENABLE_FILTER |
|
673 |
|
|
674 |
|
if (SYNTHESIS_MODE_GET_FILTER(SynthesisMode)) |
675 |
|
CalculateBiquadParameters(Samples); // calculate the final biquad filter parameters |
676 |
|
|
677 |
switch (this->PlaybackState) { |
switch (this->PlaybackState) { |
678 |
|
|
679 |
case playback_state_ram: { |
case playback_state_ram: { |
680 |
if (RAMLoop) InterpolateAndLoop(Samples, (sample_t*) pSample->GetCache().pStart, Delay); |
if (RAMLoop) SYNTHESIS_MODE_SET_LOOP(SynthesisMode, true); // enable looping |
681 |
else InterpolateNoLoop(Samples, (sample_t*) pSample->GetCache().pStart, Delay); |
|
682 |
|
// render current fragment |
683 |
|
Synthesize(Samples, (sample_t*) pSample->GetCache().pStart, Delay); |
684 |
|
|
685 |
if (DiskVoice) { |
if (DiskVoice) { |
686 |
// check if we reached the allowed limit of the sample RAM cache |
// check if we reached the allowed limit of the sample RAM cache |
687 |
if (Pos > MaxRAMPos) { |
if (Pos > MaxRAMPos) { |
704 |
KillImmediately(); |
KillImmediately(); |
705 |
return; |
return; |
706 |
} |
} |
707 |
DiskStreamRef.pStream->IncrementReadPos(pSample->Channels * (RTMath::DoubleToInt(Pos) - MaxRAMPos)); |
DiskStreamRef.pStream->IncrementReadPos(pSample->Channels * (int(Pos) - MaxRAMPos)); |
708 |
Pos -= RTMath::DoubleToInt(Pos); |
Pos -= int(Pos); |
709 |
|
RealSampleWordsLeftToRead = -1; // -1 means no silence has been added yet |
710 |
} |
} |
711 |
|
|
712 |
|
const int sampleWordsLeftToRead = DiskStreamRef.pStream->GetReadSpace(); |
713 |
|
|
714 |
// 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) |
715 |
if (DiskStreamRef.State == Stream::state_end && DiskStreamRef.pStream->GetReadSpace() < (pEngine->MaxSamplesPerCycle << MAX_PITCH) / pSample->Channels) { |
if (DiskStreamRef.State == Stream::state_end) { |
716 |
DiskStreamRef.pStream->WriteSilence((pEngine->MaxSamplesPerCycle << MAX_PITCH) / pSample->Channels); |
const int maxSampleWordsPerCycle = (pEngine->MaxSamplesPerCycle << MAX_PITCH) * pSample->Channels + 6; // +6 for the interpolator algorithm |
717 |
this->PlaybackState = playback_state_end; |
if (sampleWordsLeftToRead <= maxSampleWordsPerCycle) { |
718 |
|
// remember how many sample words there are before any silence has been added |
719 |
|
if (RealSampleWordsLeftToRead < 0) RealSampleWordsLeftToRead = sampleWordsLeftToRead; |
720 |
|
DiskStreamRef.pStream->WriteSilence(maxSampleWordsPerCycle - sampleWordsLeftToRead); |
721 |
|
} |
722 |
} |
} |
723 |
|
|
724 |
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 |
725 |
InterpolateNoLoop(Samples, ptr, Delay); |
|
726 |
DiskStreamRef.pStream->IncrementReadPos(RTMath::DoubleToInt(Pos) * pSample->Channels); |
// render current audio fragment |
727 |
Pos -= RTMath::DoubleToInt(Pos); |
Synthesize(Samples, ptr, Delay); |
728 |
|
|
729 |
|
const int iPos = (int) Pos; |
730 |
|
const int readSampleWords = iPos * pSample->Channels; // amount of sample words actually been read |
731 |
|
DiskStreamRef.pStream->IncrementReadPos(readSampleWords); |
732 |
|
Pos -= iPos; // just keep fractional part of Pos |
733 |
|
|
734 |
|
// change state of voice to 'end' if we really reached the end of the sample data |
735 |
|
if (RealSampleWordsLeftToRead >= 0) { |
736 |
|
RealSampleWordsLeftToRead -= readSampleWords; |
737 |
|
if (RealSampleWordsLeftToRead <= 0) this->PlaybackState = playback_state_end; |
738 |
|
} |
739 |
} |
} |
740 |
break; |
break; |
741 |
|
|
742 |
case playback_state_end: |
case playback_state_end: |
743 |
KillImmediately(); // free voice |
std::cerr << "gig::Voice::Render(): entered with playback_state_end, this is a bug!\n" << std::flush; |
744 |
break; |
break; |
745 |
} |
} |
746 |
|
|
|
|
|
747 |
// 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) |
748 |
pEngine->pSynthesisEvents[Event::destination_vca]->clear(); |
pEngine->pSynthesisEvents[Event::destination_vca]->clear(); |
|
#if ENABLE_FILTER |
|
749 |
pEngine->pSynthesisEvents[Event::destination_vcfc]->clear(); |
pEngine->pSynthesisEvents[Event::destination_vcfc]->clear(); |
750 |
pEngine->pSynthesisEvents[Event::destination_vcfr]->clear(); |
pEngine->pSynthesisEvents[Event::destination_vcfr]->clear(); |
|
#endif // ENABLE_FILTER |
|
751 |
|
|
752 |
// Reset delay |
// Reset delay |
753 |
Delay = 0; |
Delay = 0; |
754 |
|
|
755 |
pTriggerEvent = NULL; |
itTriggerEvent = Pool<Event>::Iterator(); |
756 |
|
|
757 |
// If release stage finished, let the voice be killed |
// If sample stream or release stage finished, kill the voice |
758 |
if (pEG1->GetStage() == EGADSR::stage_end) this->PlaybackState = playback_state_end; |
if (PlaybackState == playback_state_end || pEG1->GetStage() == EGADSR::stage_end) KillImmediately(); |
759 |
} |
} |
760 |
|
|
761 |
/** |
/** |
766 |
pLFO1->Reset(); |
pLFO1->Reset(); |
767 |
pLFO2->Reset(); |
pLFO2->Reset(); |
768 |
pLFO3->Reset(); |
pLFO3->Reset(); |
769 |
|
FilterLeft.Reset(); |
770 |
|
FilterRight.Reset(); |
771 |
DiskStreamRef.pStream = NULL; |
DiskStreamRef.pStream = NULL; |
772 |
DiskStreamRef.hStream = 0; |
DiskStreamRef.hStream = 0; |
773 |
DiskStreamRef.State = Stream::state_unused; |
DiskStreamRef.State = Stream::state_unused; |
774 |
DiskStreamRef.OrderID = 0; |
DiskStreamRef.OrderID = 0; |
775 |
Active = false; |
PlaybackState = playback_state_end; |
776 |
|
itTriggerEvent = Pool<Event>::Iterator(); |
777 |
|
itKillEvent = Pool<Event>::Iterator(); |
778 |
} |
} |
779 |
|
|
780 |
/** |
/** |
787 |
void Voice::ProcessEvents(uint Samples) { |
void Voice::ProcessEvents(uint Samples) { |
788 |
|
|
789 |
// dispatch control change events |
// dispatch control change events |
790 |
Event* pCCEvent = pEngine->pCCEvents->first(); |
RTList<Event>::Iterator itCCEvent = pEngine->pCCEvents->first(); |
791 |
if (Delay) { // skip events that happened before this voice was triggered |
if (Delay) { // skip events that happened before this voice was triggered |
792 |
while (pCCEvent && pCCEvent->FragmentPos() <= Delay) pCCEvent = pEngine->pCCEvents->next(); |
while (itCCEvent && itCCEvent->FragmentPos() <= Delay) ++itCCEvent; |
793 |
} |
} |
794 |
while (pCCEvent) { |
while (itCCEvent) { |
795 |
if (pCCEvent->Param.CC.Controller) { // if valid MIDI controller |
if (itCCEvent->Param.CC.Controller) { // if valid MIDI controller |
796 |
#if ENABLE_FILTER |
if (itCCEvent->Param.CC.Controller == VCFCutoffCtrl.controller) { |
797 |
if (pCCEvent->Param.CC.Controller == VCFCutoffCtrl.controller) { |
*pEngine->pSynthesisEvents[Event::destination_vcfc]->allocAppend() = *itCCEvent; |
|
pEngine->pSynthesisEvents[Event::destination_vcfc]->alloc_assign(*pCCEvent); |
|
798 |
} |
} |
799 |
if (pCCEvent->Param.CC.Controller == VCFResonanceCtrl.controller) { |
if (itCCEvent->Param.CC.Controller == VCFResonanceCtrl.controller) { |
800 |
pEngine->pSynthesisEvents[Event::destination_vcfr]->alloc_assign(*pCCEvent); |
*pEngine->pSynthesisEvents[Event::destination_vcfr]->allocAppend() = *itCCEvent; |
801 |
} |
} |
802 |
#endif // ENABLE_FILTER |
if (itCCEvent->Param.CC.Controller == pLFO1->ExtController) { |
803 |
if (pCCEvent->Param.CC.Controller == pLFO1->ExtController) { |
pLFO1->SendEvent(itCCEvent); |
|
pLFO1->SendEvent(pCCEvent); |
|
804 |
} |
} |
805 |
#if ENABLE_FILTER |
if (itCCEvent->Param.CC.Controller == pLFO2->ExtController) { |
806 |
if (pCCEvent->Param.CC.Controller == pLFO2->ExtController) { |
pLFO2->SendEvent(itCCEvent); |
|
pLFO2->SendEvent(pCCEvent); |
|
807 |
} |
} |
808 |
#endif // ENABLE_FILTER |
if (itCCEvent->Param.CC.Controller == pLFO3->ExtController) { |
809 |
if (pCCEvent->Param.CC.Controller == pLFO3->ExtController) { |
pLFO3->SendEvent(itCCEvent); |
|
pLFO3->SendEvent(pCCEvent); |
|
810 |
} |
} |
811 |
if (pDimRgn->AttenuationController.type == ::gig::attenuation_ctrl_t::type_controlchange && |
if (pDimRgn->AttenuationController.type == ::gig::attenuation_ctrl_t::type_controlchange && |
812 |
pCCEvent->Param.CC.Controller == pDimRgn->AttenuationController.controller_number) { // if crossfade event |
itCCEvent->Param.CC.Controller == pDimRgn->AttenuationController.controller_number) { // if crossfade event |
813 |
pEngine->pSynthesisEvents[Event::destination_vca]->alloc_assign(*pCCEvent); |
*pEngine->pSynthesisEvents[Event::destination_vca]->allocAppend() = *itCCEvent; |
814 |
} |
} |
815 |
} |
} |
816 |
|
|
817 |
pCCEvent = pEngine->pCCEvents->next(); |
++itCCEvent; |
818 |
} |
} |
819 |
|
|
820 |
|
|
821 |
// process pitch events |
// process pitch events |
822 |
{ |
{ |
823 |
RTEList<Event>* pVCOEventList = pEngine->pSynthesisEvents[Event::destination_vco]; |
RTList<Event>* pVCOEventList = pEngine->pSynthesisEvents[Event::destination_vco]; |
824 |
Event* pVCOEvent = pVCOEventList->first(); |
RTList<Event>::Iterator itVCOEvent = pVCOEventList->first(); |
825 |
if (Delay) { // skip events that happened before this voice was triggered |
if (Delay) { // skip events that happened before this voice was triggered |
826 |
while (pVCOEvent && pVCOEvent->FragmentPos() <= Delay) pVCOEvent = pVCOEventList->next(); |
while (itVCOEvent && itVCOEvent->FragmentPos() <= Delay) ++itVCOEvent; |
827 |
} |
} |
828 |
// apply old pitchbend value until first pitch event occurs |
// apply old pitchbend value until first pitch event occurs |
829 |
if (this->PitchBend != 1.0) { |
if (this->PitchBend != 1.0) { |
830 |
uint end = (pVCOEvent) ? pVCOEvent->FragmentPos() : Samples; |
uint end = (itVCOEvent) ? itVCOEvent->FragmentPos() : Samples; |
831 |
for (uint i = Delay; i < end; i++) { |
for (uint i = Delay; i < end; i++) { |
832 |
pEngine->pSynthesisParameters[Event::destination_vco][i] *= this->PitchBend; |
pEngine->pSynthesisParameters[Event::destination_vco][i] *= this->PitchBend; |
833 |
} |
} |
834 |
} |
} |
835 |
float pitch; |
float pitch; |
836 |
while (pVCOEvent) { |
while (itVCOEvent) { |
837 |
Event* pNextVCOEvent = pVCOEventList->next(); |
RTList<Event>::Iterator itNextVCOEvent = itVCOEvent; |
838 |
|
++itNextVCOEvent; |
839 |
|
|
840 |
// calculate the influence length of this event (in sample points) |
// calculate the influence length of this event (in sample points) |
841 |
uint end = (pNextVCOEvent) ? pNextVCOEvent->FragmentPos() : Samples; |
uint end = (itNextVCOEvent) ? itNextVCOEvent->FragmentPos() : Samples; |
842 |
|
|
843 |
pitch = RTMath::CentsToFreqRatio(((double) pVCOEvent->Param.Pitch.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 |
844 |
|
|
845 |
// apply pitch value to the pitch parameter sequence |
// apply pitch value to the pitch parameter sequence |
846 |
for (uint i = pVCOEvent->FragmentPos(); i < end; i++) { |
for (uint i = itVCOEvent->FragmentPos(); i < end; i++) { |
847 |
pEngine->pSynthesisParameters[Event::destination_vco][i] *= pitch; |
pEngine->pSynthesisParameters[Event::destination_vco][i] *= pitch; |
848 |
} |
} |
849 |
|
|
850 |
pVCOEvent = pNextVCOEvent; |
itVCOEvent = itNextVCOEvent; |
851 |
|
} |
852 |
|
if (!pVCOEventList->isEmpty()) { |
853 |
|
this->PitchBend = pitch; |
854 |
|
SYNTHESIS_MODE_SET_INTERPOLATE(SynthesisMode, true); |
855 |
|
SYNTHESIS_MODE_SET_CONSTPITCH(SynthesisMode, false); |
856 |
} |
} |
|
if (pVCOEventList->last()) this->PitchBend = pitch; |
|
857 |
} |
} |
858 |
|
|
859 |
// 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 !) |
860 |
{ |
{ |
861 |
RTEList<Event>* pVCAEventList = pEngine->pSynthesisEvents[Event::destination_vca]; |
RTList<Event>* pVCAEventList = pEngine->pSynthesisEvents[Event::destination_vca]; |
862 |
Event* pVCAEvent = pVCAEventList->first(); |
RTList<Event>::Iterator itVCAEvent = pVCAEventList->first(); |
863 |
if (Delay) { // skip events that happened before this voice was triggered |
if (Delay) { // skip events that happened before this voice was triggered |
864 |
while (pVCAEvent && pVCAEvent->FragmentPos() <= Delay) pVCAEvent = pVCAEventList->next(); |
while (itVCAEvent && itVCAEvent->FragmentPos() <= Delay) ++itVCAEvent; |
865 |
} |
} |
866 |
float crossfadevolume; |
float crossfadevolume; |
867 |
while (pVCAEvent) { |
while (itVCAEvent) { |
868 |
Event* pNextVCAEvent = pVCAEventList->next(); |
RTList<Event>::Iterator itNextVCAEvent = itVCAEvent; |
869 |
|
++itNextVCAEvent; |
870 |
|
|
871 |
// calculate the influence length of this event (in sample points) |
// calculate the influence length of this event (in sample points) |
872 |
uint end = (pNextVCAEvent) ? pNextVCAEvent->FragmentPos() : Samples; |
uint end = (itNextVCAEvent) ? itNextVCAEvent->FragmentPos() : Samples; |
873 |
|
|
874 |
crossfadevolume = CrossfadeAttenuation(pVCAEvent->Param.CC.Value); |
crossfadevolume = CrossfadeAttenuation(itVCAEvent->Param.CC.Value); |
875 |
|
|
876 |
float effective_volume = crossfadevolume * this->Volume * pEngine->GlobalVolume; |
float effective_volume = crossfadevolume * this->Volume * pEngine->GlobalVolume; |
877 |
|
|
878 |
// apply volume value to the volume parameter sequence |
// apply volume value to the volume parameter sequence |
879 |
for (uint i = pVCAEvent->FragmentPos(); i < end; i++) { |
for (uint i = itVCAEvent->FragmentPos(); i < end; i++) { |
880 |
pEngine->pSynthesisParameters[Event::destination_vca][i] = effective_volume; |
pEngine->pSynthesisParameters[Event::destination_vca][i] = effective_volume; |
881 |
} |
} |
882 |
|
|
883 |
pVCAEvent = pNextVCAEvent; |
itVCAEvent = itNextVCAEvent; |
884 |
} |
} |
885 |
if (pVCAEventList->last()) this->CrossfadeVolume = crossfadevolume; |
if (!pVCAEventList->isEmpty()) this->CrossfadeVolume = crossfadevolume; |
886 |
} |
} |
887 |
|
|
|
#if ENABLE_FILTER |
|
888 |
// process filter cutoff events |
// process filter cutoff events |
889 |
{ |
{ |
890 |
RTEList<Event>* pCutoffEventList = pEngine->pSynthesisEvents[Event::destination_vcfc]; |
RTList<Event>* pCutoffEventList = pEngine->pSynthesisEvents[Event::destination_vcfc]; |
891 |
Event* pCutoffEvent = pCutoffEventList->first(); |
RTList<Event>::Iterator itCutoffEvent = pCutoffEventList->first(); |
892 |
if (Delay) { // skip events that happened before this voice was triggered |
if (Delay) { // skip events that happened before this voice was triggered |
893 |
while (pCutoffEvent && pCutoffEvent->FragmentPos() <= Delay) pCutoffEvent = pCutoffEventList->next(); |
while (itCutoffEvent && itCutoffEvent->FragmentPos() <= Delay) ++itCutoffEvent; |
894 |
} |
} |
895 |
float cutoff; |
float cutoff; |
896 |
while (pCutoffEvent) { |
while (itCutoffEvent) { |
897 |
Event* pNextCutoffEvent = pCutoffEventList->next(); |
RTList<Event>::Iterator itNextCutoffEvent = itCutoffEvent; |
898 |
|
++itNextCutoffEvent; |
899 |
|
|
900 |
// calculate the influence length of this event (in sample points) |
// calculate the influence length of this event (in sample points) |
901 |
uint end = (pNextCutoffEvent) ? pNextCutoffEvent->FragmentPos() : Samples; |
uint end = (itNextCutoffEvent) ? itNextCutoffEvent->FragmentPos() : Samples; |
902 |
|
|
903 |
cutoff = exp((float) pCutoffEvent->Param.CC.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; |
904 |
|
|
905 |
// apply cutoff frequency to the cutoff parameter sequence |
// apply cutoff frequency to the cutoff parameter sequence |
906 |
for (uint i = pCutoffEvent->FragmentPos(); i < end; i++) { |
for (uint i = itCutoffEvent->FragmentPos(); i < end; i++) { |
907 |
pEngine->pSynthesisParameters[Event::destination_vcfc][i] = cutoff; |
pEngine->pSynthesisParameters[Event::destination_vcfc][i] = cutoff; |
908 |
} |
} |
909 |
|
|
910 |
pCutoffEvent = pNextCutoffEvent; |
itCutoffEvent = itNextCutoffEvent; |
911 |
} |
} |
912 |
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 |
913 |
} |
} |
914 |
|
|
915 |
// process filter resonance events |
// process filter resonance events |
916 |
{ |
{ |
917 |
RTEList<Event>* pResonanceEventList = pEngine->pSynthesisEvents[Event::destination_vcfr]; |
RTList<Event>* pResonanceEventList = pEngine->pSynthesisEvents[Event::destination_vcfr]; |
918 |
Event* pResonanceEvent = pResonanceEventList->first(); |
RTList<Event>::Iterator itResonanceEvent = pResonanceEventList->first(); |
919 |
if (Delay) { // skip events that happened before this voice was triggered |
if (Delay) { // skip events that happened before this voice was triggered |
920 |
while (pResonanceEvent && pResonanceEvent->FragmentPos() <= Delay) pResonanceEvent = pResonanceEventList->next(); |
while (itResonanceEvent && itResonanceEvent->FragmentPos() <= Delay) ++itResonanceEvent; |
921 |
} |
} |
922 |
while (pResonanceEvent) { |
while (itResonanceEvent) { |
923 |
Event* pNextResonanceEvent = pResonanceEventList->next(); |
RTList<Event>::Iterator itNextResonanceEvent = itResonanceEvent; |
924 |
|
++itNextResonanceEvent; |
925 |
|
|
926 |
// calculate the influence length of this event (in sample points) |
// calculate the influence length of this event (in sample points) |
927 |
uint end = (pNextResonanceEvent) ? pNextResonanceEvent->FragmentPos() : Samples; |
uint end = (itNextResonanceEvent) ? itNextResonanceEvent->FragmentPos() : Samples; |
928 |
|
|
929 |
// convert absolute controller value to differential |
// convert absolute controller value to differential |
930 |
int ctrldelta = pResonanceEvent->Param.CC.Value - VCFResonanceCtrl.value; |
int ctrldelta = itResonanceEvent->Param.CC.Value - VCFResonanceCtrl.value; |
931 |
VCFResonanceCtrl.value = pResonanceEvent->Param.CC.Value; |
VCFResonanceCtrl.value = itResonanceEvent->Param.CC.Value; |
932 |
|
|
933 |
float resonancedelta = (float) ctrldelta * 0.00787f; // 0.0..1.0 |
float resonancedelta = (float) ctrldelta * 0.00787f; // 0.0..1.0 |
934 |
|
|
935 |
// apply cutoff frequency to the cutoff parameter sequence |
// apply cutoff frequency to the cutoff parameter sequence |
936 |
for (uint i = pResonanceEvent->FragmentPos(); i < end; i++) { |
for (uint i = itResonanceEvent->FragmentPos(); i < end; i++) { |
937 |
pEngine->pSynthesisParameters[Event::destination_vcfr][i] += resonancedelta; |
pEngine->pSynthesisParameters[Event::destination_vcfr][i] += resonancedelta; |
938 |
} |
} |
939 |
|
|
940 |
pResonanceEvent = pNextResonanceEvent; |
itResonanceEvent = itNextResonanceEvent; |
941 |
} |
} |
942 |
if (pResonanceEventList->last()) 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 |
943 |
} |
} |
|
#endif // ENABLE_FILTER |
|
944 |
} |
} |
945 |
|
|
|
#if ENABLE_FILTER |
|
946 |
/** |
/** |
947 |
* Calculate all necessary, final biquad filter parameters. |
* Calculate all necessary, final biquad filter parameters. |
948 |
* |
* |
949 |
* @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 |
950 |
*/ |
*/ |
951 |
void Voice::CalculateBiquadParameters(uint Samples) { |
void Voice::CalculateBiquadParameters(uint Samples) { |
|
if (!FilterLeft.Enabled) return; |
|
|
|
|
952 |
biquad_param_t bqbase; |
biquad_param_t bqbase; |
953 |
biquad_param_t bqmain; |
biquad_param_t bqmain; |
954 |
float prev_cutoff = pEngine->pSynthesisParameters[Event::destination_vcfc][0]; |
float prev_cutoff = pEngine->pSynthesisParameters[Event::destination_vcfc][0]; |
955 |
float prev_res = pEngine->pSynthesisParameters[Event::destination_vcfr][0]; |
float prev_res = pEngine->pSynthesisParameters[Event::destination_vcfr][0]; |
956 |
FilterLeft.SetParameters(&bqbase, &bqmain, prev_cutoff, prev_res, pEngine->SampleRate); |
FilterLeft.SetParameters( &bqbase, &bqmain, prev_cutoff + FILTER_CUTOFF_MIN, prev_res, pEngine->SampleRate); |
957 |
|
FilterRight.SetParameters(&bqbase, &bqmain, prev_cutoff + FILTER_CUTOFF_MIN, prev_res, pEngine->SampleRate); |
958 |
pEngine->pBasicFilterParameters[0] = bqbase; |
pEngine->pBasicFilterParameters[0] = bqbase; |
959 |
pEngine->pMainFilterParameters[0] = bqmain; |
pEngine->pMainFilterParameters[0] = bqmain; |
960 |
|
|
961 |
float* bq; |
float* bq; |
962 |
for (int i = 1; i < Samples; i++) { |
for (int i = 1; i < Samples; i++) { |
963 |
// recalculate biquad parameters if cutoff or resonance differ from previous sample point |
// recalculate biquad parameters if cutoff or resonance differ from previous sample point |
964 |
if (!(i & FILTER_UPDATE_MASK)) if (pEngine->pSynthesisParameters[Event::destination_vcfr][i] != prev_res || |
if (!(i & FILTER_UPDATE_MASK)) { |
965 |
pEngine->pSynthesisParameters[Event::destination_vcfc][i] != prev_cutoff) { |
if (pEngine->pSynthesisParameters[Event::destination_vcfr][i] != prev_res || |
966 |
prev_cutoff = pEngine->pSynthesisParameters[Event::destination_vcfc][i]; |
pEngine->pSynthesisParameters[Event::destination_vcfc][i] != prev_cutoff) |
967 |
prev_res = pEngine->pSynthesisParameters[Event::destination_vcfr][i]; |
{ |
968 |
FilterLeft.SetParameters(&bqbase, &bqmain, prev_cutoff, prev_res, pEngine->SampleRate); |
prev_cutoff = pEngine->pSynthesisParameters[Event::destination_vcfc][i]; |
969 |
|
prev_res = pEngine->pSynthesisParameters[Event::destination_vcfr][i]; |
970 |
|
FilterLeft.SetParameters( &bqbase, &bqmain, prev_cutoff + FILTER_CUTOFF_MIN, prev_res, pEngine->SampleRate); |
971 |
|
FilterRight.SetParameters(&bqbase, &bqmain, prev_cutoff + FILTER_CUTOFF_MIN, prev_res, pEngine->SampleRate); |
972 |
|
} |
973 |
} |
} |
974 |
|
|
975 |
//same as 'pEngine->pBasicFilterParameters[i] = bqbase;' |
//same as 'pEngine->pBasicFilterParameters[i] = bqbase;' |
976 |
bq = (float*) &pEngine->pBasicFilterParameters[i]; |
bq = (float*) &pEngine->pBasicFilterParameters[i]; |
977 |
bq[0] = bqbase.a1; |
bq[0] = bqbase.b0; |
978 |
bq[1] = bqbase.a2; |
bq[1] = bqbase.b1; |
979 |
bq[2] = bqbase.b0; |
bq[2] = bqbase.b2; |
980 |
bq[3] = bqbase.b1; |
bq[3] = bqbase.a1; |
981 |
bq[4] = bqbase.b2; |
bq[4] = bqbase.a2; |
982 |
|
|
983 |
// same as 'pEngine->pMainFilterParameters[i] = bqmain;' |
// same as 'pEngine->pMainFilterParameters[i] = bqmain;' |
984 |
bq = (float*) &pEngine->pMainFilterParameters[i]; |
bq = (float*) &pEngine->pMainFilterParameters[i]; |
985 |
bq[0] = bqmain.a1; |
bq[0] = bqmain.b0; |
986 |
bq[1] = bqmain.a2; |
bq[1] = bqmain.b1; |
987 |
bq[2] = bqmain.b0; |
bq[2] = bqmain.b2; |
988 |
bq[3] = bqmain.b1; |
bq[3] = bqmain.a1; |
989 |
bq[4] = bqmain.b2; |
bq[4] = bqmain.a2; |
990 |
} |
} |
991 |
} |
} |
|
#endif // ENABLE_FILTER |
|
992 |
|
|
993 |
/** |
/** |
994 |
* Interpolates the input audio data (without looping). |
* Synthesizes the current audio fragment for this voice. |
995 |
* |
* |
996 |
* @param Samples - number of sample points to be rendered in this audio |
* @param Samples - number of sample points to be rendered in this audio |
997 |
* fragment cycle |
* fragment cycle |
998 |
* @param pSrc - pointer to input sample data |
* @param pSrc - pointer to input sample data |
999 |
* @param Skip - number of sample points to skip in output buffer |
* @param Skip - number of sample points to skip in output buffer |
1000 |
*/ |
*/ |
1001 |
void Voice::InterpolateNoLoop(uint Samples, sample_t* pSrc, uint Skip) { |
void Voice::Synthesize(uint Samples, sample_t* pSrc, uint Skip) { |
1002 |
int i = Skip; |
RunSynthesisFunction(SynthesisMode, *this, Samples, pSrc, Skip); |
|
|
|
|
// FIXME: assuming either mono or stereo |
|
|
if (this->pSample->Channels == 2) { // Stereo Sample |
|
|
while (i < Samples) InterpolateStereo(pSrc, i); |
|
|
} |
|
|
else { // Mono Sample |
|
|
while (i < Samples) InterpolateMono(pSrc, i); |
|
|
} |
|
|
} |
|
|
|
|
|
/** |
|
|
* Interpolates the input audio data, this method honors looping. |
|
|
* |
|
|
* @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 |
|
|
*/ |
|
|
void Voice::InterpolateAndLoop(uint Samples, sample_t* pSrc, uint Skip) { |
|
|
int i = Skip; |
|
|
|
|
|
// 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);; |
|
|
} |
|
|
} |
|
|
} |
|
|
} |
|
1003 |
} |
} |
1004 |
|
|
1005 |
/** |
/** |
1024 |
* of a voice, a kill process cannot be cancalled and is therefore |
* of a voice, a kill process cannot be cancalled and is therefore |
1025 |
* usually used for voice stealing and key group conflicts. |
* usually used for voice stealing and key group conflicts. |
1026 |
* |
* |
1027 |
* @param pKillEvent - event which caused the voice to be killed |
* @param itKillEvent - event which caused the voice to be killed |
1028 |
*/ |
*/ |
1029 |
void Voice::Kill(Event* pKillEvent) { |
void Voice::Kill(Pool<Event>::Iterator& itKillEvent) { |
1030 |
if (pTriggerEvent && pKillEvent->FragmentPos() <= pTriggerEvent->FragmentPos()) return; |
//FIXME: just two sanity checks for debugging, can be removed |
1031 |
this->pKillEvent = pKillEvent; |
if (!itKillEvent) dmsg(1,("gig::Voice::Kill(): ERROR, !itKillEvent !!!\n")); |
1032 |
|
if (itKillEvent && !itKillEvent.isValid()) dmsg(1,("gig::Voice::Kill(): ERROR, itKillEvent invalid !!!\n")); |
1033 |
|
|
1034 |
|
if (itTriggerEvent && itKillEvent->FragmentPos() <= itTriggerEvent->FragmentPos()) return; |
1035 |
|
this->itKillEvent = itKillEvent; |
1036 |
} |
} |
1037 |
|
|
1038 |
}} // namespace LinuxSampler::gig |
}} // namespace LinuxSampler::gig |