/[svn]/linuxsampler/trunk/src/engines/gig/Voice.cpp
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Annotation of /linuxsampler/trunk/src/engines/gig/Voice.cpp

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Revision 3721 - (hide annotations) (download)
Mon Jan 20 15:10:05 2020 UTC (10 months, 1 week ago) by schoenebeck
File size: 33872 byte(s)
* gig engine: If minimum cutoff is defined, remap cutoff controller CC
  values to really span the entire possible cutoff range (to avoid a
  dead controller zone).

* Bumped version (2.1.1.svn40).

1 schoenebeck 53 /***************************************************************************
2     * *
3     * LinuxSampler - modular, streaming capable sampler *
4     * *
5 schoenebeck 56 * Copyright (C) 2003, 2004 by Benno Senoner and Christian Schoenebeck *
6 persson 2055 * Copyright (C) 2005 - 2008 Christian Schoenebeck *
7 schoenebeck 3054 * Copyright (C) 2009 Christian Schoenebeck and Grigor Iliev *
8 schoenebeck 3328 * Copyright (C) 2010 - 2017 Christian Schoenebeck and Andreas Persson *
9 schoenebeck 53 * *
10     * This program is free software; you can redistribute it and/or modify *
11     * it under the terms of the GNU General Public License as published by *
12     * the Free Software Foundation; either version 2 of the License, or *
13     * (at your option) any later version. *
14     * *
15     * This program is distributed in the hope that it will be useful, *
16     * but WITHOUT ANY WARRANTY; without even the implied warranty of *
17     * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
18     * GNU General Public License for more details. *
19     * *
20     * You should have received a copy of the GNU General Public License *
21     * along with this program; if not, write to the Free Software *
22     * Foundation, Inc., 59 Temple Place, Suite 330, Boston, *
23     * MA 02111-1307 USA *
24     ***************************************************************************/
25    
26 schoenebeck 319 #include "../../common/Features.h"
27     #include "Synthesizer.h"
28 schoenebeck 770 #include "Profiler.h"
29 iliev 2012 #include "Engine.h"
30     #include "EngineChannel.h"
31 schoenebeck 53
32     #include "Voice.h"
33    
34     namespace LinuxSampler { namespace gig {
35    
36 schoenebeck 3626 // sanity checks: fromGigLfoWave() assumes equally mapped enums
37 schoenebeck 3628 static_assert(int64_t(::gig::lfo_wave_sine) == int64_t(LFO::wave_sine),
38     "enum LFO::wave_t not equally value mapped to libgig's enum ::gig::lfo_wave_t");
39     static_assert(int64_t(::gig::lfo_wave_triangle) == int64_t(LFO::wave_triangle),
40     "enum LFO::wave_t not equally value mapped to libgig's enum ::gig::lfo_wave_t");
41     static_assert(int64_t(::gig::lfo_wave_saw) == int64_t(LFO::wave_saw),
42     "enum LFO::wave_t not equally value mapped to libgig's enum ::gig::lfo_wave_t");
43     static_assert(int64_t(::gig::lfo_wave_square) == int64_t(LFO::wave_square),
44     "enum LFO::wave_t not equally value mapped to libgig's enum ::gig::lfo_wave_t");
45 schoenebeck 3626
46 schoenebeck 3625 // converts ::gig::lfo_wave_t (libgig) -> LFO::wave_t (LinuxSampler)
47     inline LFO::wave_t fromGigLfoWave(::gig::lfo_wave_t wave) {
48     // simply assuming equally mapped enums on both sides
49     return static_cast<LFO::wave_t>(wave);
50     }
51    
52 schoenebeck 3655 // Returns true for GigaStudio's original filter types (which are resembled
53     // by LS very accurately with same frequency response and patch settings
54     // behaviour), false for our own LS specific filter implementation types.
55     constexpr bool isGStFilterType(::gig::vcf_type_t type) {
56     return type == ::gig::vcf_type_lowpass ||
57     type == ::gig::vcf_type_lowpassturbo ||
58     type == ::gig::vcf_type_bandpass ||
59     type == ::gig::vcf_type_highpass ||
60     type == ::gig::vcf_type_bandreject;
61     }
62    
63 schoenebeck 53 Voice::Voice() {
64 persson 2055 pEngine = NULL;
65     pEG1 = &EG1;
66 persson 2175 pEG2 = &EG2;
67 schoenebeck 53 }
68    
69     Voice::~Voice() {
70     }
71    
72 iliev 2015 EngineChannel* Voice::GetGigEngineChannel() {
73     return static_cast<EngineChannel*>(pEngineChannel);
74     }
75    
76 iliev 2012 void Voice::SetEngine(LinuxSampler::Engine* pEngine) {
77     Engine* engine = static_cast<Engine*>(pEngine);
78     this->pEngine = engine;
79     this->pDiskThread = engine->pDiskThread;
80 schoenebeck 64 dmsg(6,("Voice::SetEngine()\n"));
81 schoenebeck 53 }
82    
83 iliev 2015 Voice::SampleInfo Voice::GetSampleInfo() {
84     SampleInfo si;
85     si.SampleRate = pSample->SamplesPerSecond;
86     si.ChannelCount = pSample->Channels;
87     si.FrameSize = pSample->FrameSize;
88     si.BitDepth = pSample->BitDepth;
89 schoenebeck 3054 si.TotalFrameCount = (uint)pSample->SamplesTotal;
90 schoenebeck 669
91 iliev 2015 si.HasLoops = pRegion->SampleLoops;
92     si.LoopStart = (si.HasLoops) ? pRegion->pSampleLoops[0].LoopStart : 0;
93     si.LoopLength = (si.HasLoops) ? pRegion->pSampleLoops[0].LoopLength : 0;
94     si.LoopPlayCount = pSample->LoopPlayCount;
95     si.Unpitched = !pRegion->PitchTrack;
96 schoenebeck 53
97 iliev 2015 return si;
98     }
99 schoenebeck 53
100 iliev 2015 Voice::RegionInfo Voice::GetRegionInfo() {
101     RegionInfo ri;
102     ri.UnityNote = pRegion->UnityNote;
103     ri.FineTune = pRegion->FineTune;
104     ri.Pan = pRegion->Pan;
105     ri.SampleStartOffset = pRegion->SampleStartOffset;
106 persson 630
107 iliev 2015 ri.EG2PreAttack = pRegion->EG2PreAttack;
108     ri.EG2Attack = pRegion->EG2Attack;
109     ri.EG2Decay1 = pRegion->EG2Decay1;
110     ri.EG2Decay2 = pRegion->EG2Decay2;
111     ri.EG2Sustain = pRegion->EG2Sustain;
112     ri.EG2InfiniteSustain = pRegion->EG2InfiniteSustain;
113     ri.EG2Release = pRegion->EG2Release;
114 persson 630
115 iliev 2015 ri.EG3Attack = pRegion->EG3Attack;
116     ri.EG3Depth = pRegion->EG3Depth;
117     ri.VCFEnabled = pRegion->VCFEnabled;
118 persson 2175 ri.VCFType = Filter::vcf_type_t(pRegion->VCFType);
119 iliev 2015 ri.VCFResonance = pRegion->VCFResonance;
120    
121 persson 2061 ri.ReleaseTriggerDecay = 0.01053 * (256 >> pRegion->ReleaseTriggerDecay);
122 iliev 2015
123     return ri;
124     }
125    
126     Voice::InstrumentInfo Voice::GetInstrumentInfo() {
127     InstrumentInfo ii;
128     ii.FineTune = GetGigEngineChannel()->pInstrument->FineTune;
129     ii.PitchbendRange = GetGigEngineChannel()->pInstrument->PitchbendRange;
130    
131     return ii;
132     }
133    
134     double Voice::GetSampleAttenuation() {
135     return pRegion->SampleAttenuation;
136     }
137    
138     double Voice::GetVelocityAttenuation(uint8_t MIDIKeyVelocity) {
139     return pRegion->GetVelocityAttenuation(MIDIKeyVelocity);
140     }
141    
142     double Voice::GetVelocityRelease(uint8_t MIDIKeyVelocity) {
143     return pRegion->GetVelocityRelease(MIDIKeyVelocity);
144     }
145    
146     void Voice::ProcessCCEvent(RTList<Event>::Iterator& itEvent) {
147     if (itEvent->Type == Event::type_control_change && itEvent->Param.CC.Controller) { // if (valid) MIDI control change event
148     if (pRegion->AttenuationController.type == ::gig::attenuation_ctrl_t::type_controlchange &&
149     itEvent->Param.CC.Controller == pRegion->AttenuationController.controller_number) {
150     CrossfadeSmoother.update(AbstractEngine::CrossfadeCurve[CrossfadeAttenuation(itEvent->Param.CC.Value)]);
151     }
152 persson 630 }
153 iliev 2015 }
154 persson 630
155 schoenebeck 2559 void Voice::ProcessChannelPressureEvent(RTList<Event>::Iterator& itEvent) {
156     if (itEvent->Type == Event::type_channel_pressure) { // if (valid) MIDI channel pressure (aftertouch) event
157     if (pRegion->AttenuationController.type == ::gig::attenuation_ctrl_t::type_channelaftertouch) {
158     CrossfadeSmoother.update(AbstractEngine::CrossfadeCurve[CrossfadeAttenuation(itEvent->Param.ChannelPressure.Value)]);
159     }
160     }
161     }
162    
163     void Voice::ProcessPolyphonicKeyPressureEvent(RTList<Event>::Iterator& itEvent) {
164     // Not used so far
165     }
166    
167 schoenebeck 3655 uint8_t Voice::MinCutoff() const {
168     // If there's a cutoff controller defined then VCFVelocityScale means
169     // "minimum cutoff". If there is no MIDI controller defined for cutoff
170     // then VCFVelocityScale is already taken into account on libgig side
171     // instead by call to pRegion->GetVelocityCutoff(MIDIKeyVelocity).
172     return pRegion->VCFVelocityScale;
173     }
174    
175     // This is called on any cutoff controller changes, however not when the
176     // voice is triggered. So the initial cutoff value is retrieved by a call
177     // to CalculateFinalCutoff() instead.
178 iliev 2015 void Voice::ProcessCutoffEvent(RTList<Event>::Iterator& itEvent) {
179 schoenebeck 3655 if (VCFCutoffCtrl.value == itEvent->Param.CC.Value) return;
180     float ccvalue = VCFCutoffCtrl.value = itEvent->Param.CC.Value;
181    
182     // if the selected filter type is an official GigaStudio filter type
183     // then we preserve the original (no matter how odd) historical GSt
184     // behaviour identically; for our own filter types though we deviate to
185     // more meaningful behaviours where appropriate
186     const bool isGStFilter = isGStFilterType(pRegion->VCFType);
187    
188     if (pRegion->VCFCutoffControllerInvert) ccvalue = 127 - ccvalue;
189 schoenebeck 3721 // interpret "minimum cutoff" not simply as hard limit, rather
190     // restrain it to min_cutoff..127 range, but spanned / remapped over
191     // the entire controller range (0..127) to avoid a "dead" lower
192     // controller zone (that is to avoid a certain CC value range where
193     // the controller would not change the cutoff frequency)
194     ccvalue = MinCutoff() + (ccvalue / 127.f) * float(127 - MinCutoff());
195 schoenebeck 3655
196     float cutoff = CutoffBase * ccvalue;
197 iliev 2015 if (cutoff > 127.0f) cutoff = 127.0f;
198 schoenebeck 319
199 schoenebeck 3655 // the filter implementations of the original GSt filter types take an
200     // abstract cutoff parameter range of 0..127, whereas our own filter
201     // types take a cutoff parameter in Hz, so remap here:
202     // 0 .. 127 [lin] -> 21 Hz .. 18 kHz [x^4] (center @2.2 kHz)
203     if (!isGStFilter) {
204     cutoff = (cutoff + 29.f) / (127.f + 29.f);
205     cutoff = cutoff * cutoff * cutoff * cutoff * 18000.f;
206     if (cutoff > 0.49f * pEngine->SampleRate)
207     cutoff = 0.49f * pEngine->SampleRate;
208     }
209    
210     fFinalCutoff = VCFCutoffCtrl.fvalue = cutoff;
211 iliev 2015 }
212    
213     double Voice::CalculateCrossfadeVolume(uint8_t MIDIKeyVelocity) {
214 persson 832 float crossfadeVolume;
215 iliev 2015 switch (pRegion->AttenuationController.type) {
216 schoenebeck 236 case ::gig::attenuation_ctrl_t::type_channelaftertouch:
217 iliev 2015 crossfadeVolume = Engine::CrossfadeCurve[CrossfadeAttenuation(GetGigEngineChannel()->ControllerTable[128])];
218 schoenebeck 236 break;
219     case ::gig::attenuation_ctrl_t::type_velocity:
220 iliev 2015 crossfadeVolume = Engine::CrossfadeCurve[CrossfadeAttenuation(MIDIKeyVelocity)];
221 schoenebeck 236 break;
222     case ::gig::attenuation_ctrl_t::type_controlchange: //FIXME: currently not sample accurate
223 iliev 2015 crossfadeVolume = Engine::CrossfadeCurve[CrossfadeAttenuation(GetGigEngineChannel()->ControllerTable[pRegion->AttenuationController.controller_number])];
224 schoenebeck 236 break;
225     case ::gig::attenuation_ctrl_t::type_none: // no crossfade defined
226     default:
227 persson 832 crossfadeVolume = 1.0f;
228 schoenebeck 236 }
229    
230 iliev 2015 return crossfadeVolume;
231     }
232 schoenebeck 245
233 iliev 2015 double Voice::GetEG1ControllerValue(uint8_t MIDIKeyVelocity) {
234     double eg1controllervalue = 0;
235     switch (pRegion->EG1Controller.type) {
236     case ::gig::eg1_ctrl_t::type_none: // no controller defined
237     eg1controllervalue = 0;
238     break;
239     case ::gig::eg1_ctrl_t::type_channelaftertouch:
240     eg1controllervalue = GetGigEngineChannel()->ControllerTable[128];
241     break;
242     case ::gig::eg1_ctrl_t::type_velocity:
243     eg1controllervalue = MIDIKeyVelocity;
244     break;
245     case ::gig::eg1_ctrl_t::type_controlchange: // MIDI control change controller
246     eg1controllervalue = GetGigEngineChannel()->ControllerTable[pRegion->EG1Controller.controller_number];
247     break;
248 schoenebeck 53 }
249 iliev 2015 if (pRegion->EG1ControllerInvert) eg1controllervalue = 127 - eg1controllervalue;
250 schoenebeck 53
251 iliev 2015 return eg1controllervalue;
252     }
253 persson 1700
254 iliev 2015 Voice::EGInfo Voice::CalculateEG1ControllerInfluence(double eg1ControllerValue) {
255     EGInfo eg;
256     // (eg1attack is different from the others)
257 persson 2408 if (pRegion->EG1Attack < 1e-8 && // attack in gig == 0
258     (pRegion->EG1ControllerAttackInfluence == 0 ||
259     eg1ControllerValue <= 10)) { // strange GSt special case
260     eg.Attack = 0; // this will force the attack to be 0 in the call to EG1.trigger
261     } else {
262     eg.Attack = (pRegion->EG1ControllerAttackInfluence) ?
263     1 + 0.031 * (double) (pRegion->EG1ControllerAttackInfluence == 1 ?
264     1 : 1 << pRegion->EG1ControllerAttackInfluence) * eg1ControllerValue : 1.0;
265     }
266 iliev 2015 eg.Decay = (pRegion->EG1ControllerDecayInfluence) ? 1 + 0.00775 * (double) (1 << pRegion->EG1ControllerDecayInfluence) * eg1ControllerValue : 1.0;
267     eg.Release = (pRegion->EG1ControllerReleaseInfluence) ? 1 + 0.00775 * (double) (1 << pRegion->EG1ControllerReleaseInfluence) * eg1ControllerValue : 1.0;
268 persson 1700
269 iliev 2015 return eg;
270     }
271 schoenebeck 53
272 iliev 2015 double Voice::GetEG2ControllerValue(uint8_t MIDIKeyVelocity) {
273     double eg2controllervalue = 0;
274     switch (pRegion->EG2Controller.type) {
275     case ::gig::eg2_ctrl_t::type_none: // no controller defined
276     eg2controllervalue = 0;
277     break;
278     case ::gig::eg2_ctrl_t::type_channelaftertouch:
279     eg2controllervalue = GetGigEngineChannel()->ControllerTable[128];
280     break;
281     case ::gig::eg2_ctrl_t::type_velocity:
282     eg2controllervalue = MIDIKeyVelocity;
283     break;
284     case ::gig::eg2_ctrl_t::type_controlchange: // MIDI control change controller
285     eg2controllervalue = GetGigEngineChannel()->ControllerTable[pRegion->EG2Controller.controller_number];
286     break;
287 schoenebeck 53 }
288 iliev 2015 if (pRegion->EG2ControllerInvert) eg2controllervalue = 127 - eg2controllervalue;
289 schoenebeck 53
290 iliev 2015 return eg2controllervalue;
291     }
292 schoenebeck 53
293 iliev 2015 Voice::EGInfo Voice::CalculateEG2ControllerInfluence(double eg2ControllerValue) {
294     EGInfo eg;
295     eg.Attack = (pRegion->EG2ControllerAttackInfluence) ? 1 + 0.00775 * (double) (1 << pRegion->EG2ControllerAttackInfluence) * eg2ControllerValue : 1.0;
296     eg.Decay = (pRegion->EG2ControllerDecayInfluence) ? 1 + 0.00775 * (double) (1 << pRegion->EG2ControllerDecayInfluence) * eg2ControllerValue : 1.0;
297     eg.Release = (pRegion->EG2ControllerReleaseInfluence) ? 1 + 0.00775 * (double) (1 << pRegion->EG2ControllerReleaseInfluence) * eg2ControllerValue : 1.0;
298 persson 830
299 iliev 2015 return eg;
300     }
301 schoenebeck 53
302 iliev 2015 void Voice::InitLFO1() {
303     uint16_t lfo1_internal_depth;
304     switch (pRegion->LFO1Controller) {
305     case ::gig::lfo1_ctrl_internal:
306     lfo1_internal_depth = pRegion->LFO1InternalDepth;
307     pLFO1->ExtController = 0; // no external controller
308     bLFO1Enabled = (lfo1_internal_depth > 0);
309     break;
310     case ::gig::lfo1_ctrl_modwheel:
311     lfo1_internal_depth = 0;
312     pLFO1->ExtController = 1; // MIDI controller 1
313     bLFO1Enabled = (pRegion->LFO1ControlDepth > 0);
314     break;
315     case ::gig::lfo1_ctrl_breath:
316     lfo1_internal_depth = 0;
317     pLFO1->ExtController = 2; // MIDI controller 2
318     bLFO1Enabled = (pRegion->LFO1ControlDepth > 0);
319     break;
320     case ::gig::lfo1_ctrl_internal_modwheel:
321     lfo1_internal_depth = pRegion->LFO1InternalDepth;
322     pLFO1->ExtController = 1; // MIDI controller 1
323     bLFO1Enabled = (lfo1_internal_depth > 0 || pRegion->LFO1ControlDepth > 0);
324     break;
325     case ::gig::lfo1_ctrl_internal_breath:
326     lfo1_internal_depth = pRegion->LFO1InternalDepth;
327     pLFO1->ExtController = 2; // MIDI controller 2
328     bLFO1Enabled = (lfo1_internal_depth > 0 || pRegion->LFO1ControlDepth > 0);
329     break;
330     default:
331     lfo1_internal_depth = 0;
332     pLFO1->ExtController = 0; // no external controller
333     bLFO1Enabled = false;
334 schoenebeck 53 }
335 iliev 2015 if (bLFO1Enabled) {
336 schoenebeck 3625 pLFO1->trigger(fromGigLfoWave(pRegion->LFO1WaveForm),
337     pRegion->LFO1Frequency,
338     pRegion->LFO1Phase,
339 schoenebeck 3615 LFO::start_level_mid, // see https://sourceforge.net/p/linuxsampler/mailman/linuxsampler-devel/thread/2189307.cNP0Xbctxq%40silver/#msg36774029
340 iliev 2015 lfo1_internal_depth,
341     pRegion->LFO1ControlDepth,
342     pRegion->LFO1FlipPhase,
343     pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
344 schoenebeck 3118 pLFO1->updateByMIDICtrlValue(pLFO1->ExtController ? GetGigEngineChannel()->ControllerTable[pLFO1->ExtController] : 0);
345 schoenebeck 3561 pLFO1->setScriptDepthFactor(
346     pNote->Override.AmpLFODepth.Value,
347     pNote->Override.AmpLFODepth.Final
348     );
349     if (pNote->Override.AmpLFOFreq.isFinal())
350     pLFO1->setScriptFrequencyFinal(
351     pNote->Override.AmpLFOFreq.Value, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE
352     );
353     else
354     pLFO1->setScriptFrequencyFactor(
355     pNote->Override.AmpLFOFreq.Value, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE
356     );
357 schoenebeck 53 }
358 iliev 2015 }
359 schoenebeck 53
360 iliev 2015 void Voice::InitLFO2() {
361     uint16_t lfo2_internal_depth;
362     switch (pRegion->LFO2Controller) {
363     case ::gig::lfo2_ctrl_internal:
364     lfo2_internal_depth = pRegion->LFO2InternalDepth;
365     pLFO2->ExtController = 0; // no external controller
366     bLFO2Enabled = (lfo2_internal_depth > 0);
367     break;
368     case ::gig::lfo2_ctrl_modwheel:
369     lfo2_internal_depth = 0;
370     pLFO2->ExtController = 1; // MIDI controller 1
371     bLFO2Enabled = (pRegion->LFO2ControlDepth > 0);
372     break;
373     case ::gig::lfo2_ctrl_foot:
374     lfo2_internal_depth = 0;
375     pLFO2->ExtController = 4; // MIDI controller 4
376     bLFO2Enabled = (pRegion->LFO2ControlDepth > 0);
377     break;
378     case ::gig::lfo2_ctrl_internal_modwheel:
379     lfo2_internal_depth = pRegion->LFO2InternalDepth;
380     pLFO2->ExtController = 1; // MIDI controller 1
381     bLFO2Enabled = (lfo2_internal_depth > 0 || pRegion->LFO2ControlDepth > 0);
382     break;
383     case ::gig::lfo2_ctrl_internal_foot:
384     lfo2_internal_depth = pRegion->LFO2InternalDepth;
385     pLFO2->ExtController = 4; // MIDI controller 4
386     bLFO2Enabled = (lfo2_internal_depth > 0 || pRegion->LFO2ControlDepth > 0);
387     break;
388     default:
389     lfo2_internal_depth = 0;
390     pLFO2->ExtController = 0; // no external controller
391     bLFO2Enabled = false;
392 schoenebeck 53 }
393 iliev 2015 if (bLFO2Enabled) {
394 schoenebeck 3625 pLFO2->trigger(fromGigLfoWave(pRegion->LFO2WaveForm),
395     pRegion->LFO2Frequency,
396     pRegion->LFO2Phase,
397 schoenebeck 3615 LFO::start_level_mid, // see https://sourceforge.net/p/linuxsampler/mailman/linuxsampler-devel/thread/2189307.cNP0Xbctxq%40silver/#msg36774029
398 iliev 2015 lfo2_internal_depth,
399     pRegion->LFO2ControlDepth,
400     pRegion->LFO2FlipPhase,
401     pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
402 schoenebeck 3118 pLFO2->updateByMIDICtrlValue(pLFO2->ExtController ? GetGigEngineChannel()->ControllerTable[pLFO2->ExtController] : 0);
403 schoenebeck 3561 pLFO2->setScriptDepthFactor(
404     pNote->Override.CutoffLFODepth.Value,
405     pNote->Override.CutoffLFODepth.Final
406     );
407     if (pNote->Override.CutoffLFOFreq.isFinal())
408     pLFO2->setScriptFrequencyFinal(pNote->Override.CutoffLFOFreq.Value, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
409     else
410     pLFO2->setScriptFrequencyFactor(pNote->Override.CutoffLFOFreq.Value, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
411 schoenebeck 53 }
412     }
413    
414 iliev 2015 void Voice::InitLFO3() {
415     uint16_t lfo3_internal_depth;
416     switch (pRegion->LFO3Controller) {
417     case ::gig::lfo3_ctrl_internal:
418     lfo3_internal_depth = pRegion->LFO3InternalDepth;
419     pLFO3->ExtController = 0; // no external controller
420     bLFO3Enabled = (lfo3_internal_depth > 0);
421 schoenebeck 53 break;
422 iliev 2015 case ::gig::lfo3_ctrl_modwheel:
423     lfo3_internal_depth = 0;
424     pLFO3->ExtController = 1; // MIDI controller 1
425     bLFO3Enabled = (pRegion->LFO3ControlDepth > 0);
426 schoenebeck 53 break;
427 iliev 2015 case ::gig::lfo3_ctrl_aftertouch:
428     lfo3_internal_depth = 0;
429 schoenebeck 3017 pLFO3->ExtController = CTRL_TABLE_IDX_AFTERTOUCH;
430 iliev 2015 bLFO3Enabled = true;
431 schoenebeck 53 break;
432 iliev 2015 case ::gig::lfo3_ctrl_internal_modwheel:
433     lfo3_internal_depth = pRegion->LFO3InternalDepth;
434     pLFO3->ExtController = 1; // MIDI controller 1
435     bLFO3Enabled = (lfo3_internal_depth > 0 || pRegion->LFO3ControlDepth > 0);
436     break;
437     case ::gig::lfo3_ctrl_internal_aftertouch:
438     lfo3_internal_depth = pRegion->LFO3InternalDepth;
439 schoenebeck 3017 pLFO3->ExtController = CTRL_TABLE_IDX_AFTERTOUCH;
440 iliev 2015 bLFO3Enabled = (lfo3_internal_depth > 0 || pRegion->LFO3ControlDepth > 0);
441     break;
442     default:
443     lfo3_internal_depth = 0;
444     pLFO3->ExtController = 0; // no external controller
445     bLFO3Enabled = false;
446 schoenebeck 53 }
447 iliev 2015 if (bLFO3Enabled) {
448 schoenebeck 3625 pLFO3->trigger(fromGigLfoWave(pRegion->LFO3WaveForm),
449     pRegion->LFO3Frequency,
450     pRegion->LFO3Phase,
451 schoenebeck 3615 LFO::start_level_max, // see https://sourceforge.net/p/linuxsampler/mailman/linuxsampler-devel/thread/2189307.cNP0Xbctxq%40silver/#msg36774029
452 iliev 2015 lfo3_internal_depth,
453     pRegion->LFO3ControlDepth,
454 schoenebeck 3625 pRegion->LFO3FlipPhase,
455 iliev 2015 pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
456 schoenebeck 3118 pLFO3->updateByMIDICtrlValue(pLFO3->ExtController ? GetGigEngineChannel()->ControllerTable[pLFO3->ExtController] : 0);
457 schoenebeck 3561 pLFO3->setScriptDepthFactor(
458     pNote->Override.PitchLFODepth.Value,
459     pNote->Override.PitchLFODepth.Final
460     );
461     if (pNote->Override.PitchLFOFreq.isFinal())
462     pLFO3->setScriptFrequencyFinal(pNote->Override.PitchLFOFreq.Value, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
463     else
464     pLFO3->setScriptFrequencyFactor(pNote->Override.PitchLFOFreq.Value, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
465 schoenebeck 738 }
466     }
467 persson 2055
468 iliev 2015 float Voice::CalculateCutoffBase(uint8_t MIDIKeyVelocity) {
469     float cutoff = pRegion->GetVelocityCutoff(MIDIKeyVelocity);
470     if (pRegion->VCFKeyboardTracking) {
471 schoenebeck 2879 cutoff *= RTMath::CentsToFreqRatioUnlimited((MIDIKey() - pRegion->VCFKeyboardTrackingBreakpoint) * 100);
472 schoenebeck 53 }
473 iliev 2015 return cutoff;
474 schoenebeck 738 }
475 schoenebeck 53
476 schoenebeck 3655 // This is just called when the voice is triggered. On any subsequent cutoff
477     // controller changes ProcessCutoffEvent() is called instead.
478     float Voice::CalculateFinalCutoff(float cutoffBase) {
479     // if the selected filter type is an official GigaStudio filter type
480     // then we preserve the original (no matter how odd) historical GSt
481     // behaviour identically; for our own filter types though we deviate to
482     // more meaningful behaviours where appropriate
483     const bool isGStFilter = isGStFilterType(pRegion->VCFType);
484 schoenebeck 3646
485 schoenebeck 3655 // get current cutoff CC or velocity value (always 0..127)
486     float cvalue;
487 iliev 2015 if (VCFCutoffCtrl.controller) {
488     cvalue = GetGigEngineChannel()->ControllerTable[VCFCutoffCtrl.controller];
489     if (pRegion->VCFCutoffControllerInvert) cvalue = 127 - cvalue;
490 schoenebeck 3655 if (isGStFilter) {
491     // VCFVelocityScale in this case means "minimum cutoff" for GSt
492     if (cvalue < MinCutoff()) cvalue = MinCutoff();
493     } else {
494     // for our own filter types we interpret "minimum cutoff"
495     // differently: GSt handles this as a simple hard limit with the
496     // consequence that a certain range of the controller is simply
497     // dead; so for our filter types we rather remap that to
498     // restrain within the min_cutoff..127 range as well, but
499     // effectively spanned over the entire controller range (0..127)
500     // to avoid such a "dead" lower controller zone
501     cvalue = MinCutoff() + (cvalue / 127.f) * float(127 - MinCutoff());
502     }
503     } else {
504     // in case of velocity, VCFVelocityScale parameter is already
505     // handled on libgig side (so by calling
506     // pRegion->GetVelocityCutoff(velo) in CalculateCutoffBase() above)
507 iliev 2015 cvalue = pRegion->VCFCutoff;
508 persson 1748 }
509 schoenebeck 3655
510     float fco = cutoffBase * cvalue;
511 iliev 2015 if (fco > 127.0f) fco = 127.0f;
512 persson 796
513 schoenebeck 3646 // the filter implementations of the original GSt filter types take an
514     // abstract cutoff parameter range of 0..127, ...
515 schoenebeck 3655 if (isGStFilter)
516 schoenebeck 3646 return fco;
517    
518     // ... whereas our own filter types take a cutoff parameter in Hz, so
519 schoenebeck 3652 // remap here 0 .. 127 [lin] -> 21 Hz .. 18 kHz [x^4] (center @2.2 kHz)
520 schoenebeck 3646 fco = (fco + 29.f) / (127.f + 29.f);
521     fco = fco * fco * fco * fco * 18000.f;
522     if (fco > 0.49f * pEngine->SampleRate)
523     fco = 0.49f * pEngine->SampleRate;
524 iliev 2015 return fco;
525     }
526 persson 768
527 iliev 2015 uint8_t Voice::GetVCFCutoffCtrl() {
528     uint8_t ctrl;
529     switch (pRegion->VCFCutoffController) {
530     case ::gig::vcf_cutoff_ctrl_modwheel:
531     ctrl = 1;
532     break;
533     case ::gig::vcf_cutoff_ctrl_effect1:
534     ctrl = 12;
535     break;
536     case ::gig::vcf_cutoff_ctrl_effect2:
537     ctrl = 13;
538     break;
539     case ::gig::vcf_cutoff_ctrl_breath:
540     ctrl = 2;
541     break;
542     case ::gig::vcf_cutoff_ctrl_foot:
543     ctrl = 4;
544     break;
545     case ::gig::vcf_cutoff_ctrl_sustainpedal:
546     ctrl = 64;
547     break;
548     case ::gig::vcf_cutoff_ctrl_softpedal:
549     ctrl = 67;
550     break;
551     case ::gig::vcf_cutoff_ctrl_genpurpose7:
552     ctrl = 82;
553     break;
554     case ::gig::vcf_cutoff_ctrl_genpurpose8:
555     ctrl = 83;
556     break;
557     case ::gig::vcf_cutoff_ctrl_aftertouch:
558 schoenebeck 3017 ctrl = CTRL_TABLE_IDX_AFTERTOUCH;
559 iliev 2015 break;
560     case ::gig::vcf_cutoff_ctrl_none:
561     default:
562     ctrl = 0;
563     break;
564 schoenebeck 53 }
565    
566 iliev 2015 return ctrl;
567 schoenebeck 829 }
568    
569 iliev 2015 uint8_t Voice::GetVCFResonanceCtrl() {
570     uint8_t ctrl;
571     switch (pRegion->VCFResonanceController) {
572     case ::gig::vcf_res_ctrl_genpurpose3:
573     ctrl = 18;
574     break;
575     case ::gig::vcf_res_ctrl_genpurpose4:
576     ctrl = 19;
577     break;
578     case ::gig::vcf_res_ctrl_genpurpose5:
579     ctrl = 80;
580     break;
581     case ::gig::vcf_res_ctrl_genpurpose6:
582     ctrl = 81;
583     break;
584     case ::gig::vcf_res_ctrl_none:
585     default:
586     ctrl = 0;
587 schoenebeck 53 }
588    
589 iliev 2015 return ctrl;
590 schoenebeck 239 }
591    
592 persson 2055 void Voice::TriggerEG1(const EGInfo& egInfo, double velrelease, double velocityAttenuation, uint sampleRate, uint8_t velocity) {
593 schoenebeck 3328 EG1.setStateOptions(
594     pRegion->EG1Options.AttackCancel,
595     pRegion->EG1Options.AttackHoldCancel,
596     pRegion->EG1Options.Decay1Cancel,
597     pRegion->EG1Options.Decay2Cancel,
598     pRegion->EG1Options.ReleaseCancel
599     );
600 persson 2203 EG1.trigger(pRegion->EG1PreAttack,
601 schoenebeck 3588 (pNote && pNote->Override.Attack.isFinal()) ?
602     pNote->Override.Attack.Value :
603     RTMath::Max(pRegion->EG1Attack, 0.0316) * egInfo.Attack,
604 persson 2203 pRegion->EG1Hold,
605 schoenebeck 3588 (pNote && pNote->Override.Decay.isFinal()) ?
606     pNote->Override.Decay.Value :
607     pRegion->EG1Decay1 * egInfo.Decay * velrelease,
608     (pNote && pNote->Override.Decay.isFinal()) ?
609     pNote->Override.Decay.Value :
610     pRegion->EG1Decay2 * egInfo.Decay * velrelease,
611 persson 2203 pRegion->EG1InfiniteSustain,
612 schoenebeck 3561 (pNote && pNote->Override.Sustain.Final) ?
613 schoenebeck 3588 uint(pNote->Override.Sustain.Value * 1000.f) :
614 schoenebeck 3561 pRegion->EG1Sustain * (pNote ? pNote->Override.Sustain.Value : 1.f),
615 schoenebeck 3588 (pNote && pNote->Override.Release.isFinal()) ?
616     pNote->Override.Release.Value :
617     RTMath::Max(pRegion->EG1Release * velrelease, 0.014) * egInfo.Release,
618 persson 2055 velocityAttenuation,
619     sampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
620     }
621 persson 2114
622 persson 2175 void Voice::TriggerEG2(const EGInfo& egInfo, double velrelease, double velocityAttenuation, uint sampleRate, uint8_t velocity) {
623 schoenebeck 3328 EG2.setStateOptions(
624     pRegion->EG2Options.AttackCancel,
625     pRegion->EG2Options.AttackHoldCancel,
626     pRegion->EG2Options.Decay1Cancel,
627     pRegion->EG2Options.Decay2Cancel,
628     pRegion->EG2Options.ReleaseCancel
629     );
630 persson 2175 EG2.trigger(uint(RgnInfo.EG2PreAttack),
631 schoenebeck 3588 (pNote && pNote->Override.CutoffAttack.isFinal()) ?
632     pNote->Override.CutoffAttack.Value :
633     RgnInfo.EG2Attack * egInfo.Attack,
634 persson 2175 false,
635 schoenebeck 3588 (pNote && pNote->Override.CutoffDecay.isFinal()) ?
636     pNote->Override.CutoffDecay.Value :
637     RgnInfo.EG2Decay1 * egInfo.Decay * velrelease,
638     (pNote && pNote->Override.CutoffDecay.isFinal()) ?
639     pNote->Override.CutoffDecay.Value :
640     RgnInfo.EG2Decay2 * egInfo.Decay * velrelease,
641 persson 2175 RgnInfo.EG2InfiniteSustain,
642 schoenebeck 3588 (pNote && pNote->Override.CutoffSustain.Final) ?
643     uint(pNote->Override.CutoffSustain.Value * 1000.f) :
644     uint(RgnInfo.EG2Sustain),
645     (pNote && pNote->Override.CutoffRelease.isFinal()) ?
646     pNote->Override.CutoffRelease.Value :
647     RgnInfo.EG2Release * egInfo.Release * velrelease,
648 persson 2175 velocityAttenuation,
649     sampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
650     }
651    
652 persson 2114 void Voice::ProcessGroupEvent(RTList<Event>::Iterator& itEvent) {
653 persson 2837 dmsg(4,("Voice %p processGroupEvents event type=%d", (void*)this, itEvent->Type));
654 persson 2114
655     // TODO: The SustainPedal condition could be wrong, maybe the
656     // check should be if this Voice is in release stage or is a
657     // release sample instead. Need to test this in GSt.
658 schoenebeck 2396 // -- Andreas
659     //
660     // Commented sustain pedal check out. I don't think voices of the same
661     // note should be stopped at all, because it doesn't sound naturally
662     // with a drumkit.
663     // -- Christian, 2013-01-08
664 schoenebeck 2879 if (itEvent->Param.Note.Key != HostKey() /*||
665 schoenebeck 2396 !GetGigEngineChannel()->SustainPedal*/) {
666 persson 2837 dmsg(4,("Voice %p - kill", (void*)this));
667 persson 2114
668     // kill the voice fast
669     pEG1->enterFadeOutStage();
670     }
671     }
672    
673 persson 2327 void Voice::CalculateFadeOutCoeff(float FadeOutTime, float SampleRate) {
674     EG1.CalculateFadeOutCoeff(FadeOutTime, SampleRate);
675     }
676    
677 persson 2382 int Voice::CalculatePan(uint8_t pan) {
678     int p;
679     // Gst behaviour: -64 and 63 are special cases
680     if (RgnInfo.Pan == -64) p = pan * 2 - 127;
681     else if (RgnInfo.Pan == 63) p = pan * 2;
682     else p = pan + RgnInfo.Pan;
683    
684     if (p < 0) return 0;
685     if (p > 127) return 127;
686     return p;
687     }
688    
689 schoenebeck 3444 release_trigger_t Voice::GetReleaseTriggerFlags() {
690 schoenebeck 3448 release_trigger_t flags =
691     (pRegion->NoNoteOffReleaseTrigger) ?
692     release_trigger_none : release_trigger_noteoff; //HACK: currently this method is actually only called by EngineBase if it already knows that this voice requires release trigger, so I took the short way instead of checking (again) the existence of a ::gig::dimension_releasetrigger
693 schoenebeck 3444 switch (pRegion->SustainReleaseTrigger) {
694     case ::gig::sust_rel_trg_none:
695     break;
696     case ::gig::sust_rel_trg_maxvelocity:
697     flags |= release_trigger_sustain_maxvelocity;
698     break;
699     case ::gig::sust_rel_trg_keyvelocity:
700     flags |= release_trigger_sustain_keyvelocity;
701     break;
702     }
703     return flags;
704     }
705    
706 schoenebeck 53 }} // namespace LinuxSampler::gig

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