/[svn]/linuxsampler/trunk/src/engines/sf2/Voice.cpp
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Contents of /linuxsampler/trunk/src/engines/sf2/Voice.cpp

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Revision 2055 - (show annotations) (download)
Sat Jan 30 10:30:02 2010 UTC (14 years, 2 months ago) by persson
File size: 21757 byte(s)
* sfz engine: added support for v2 multiple stage envelope generators
* sfz engine: added a fine-tuned v1 envelope generator instead of
  using the one from the gig engine

1 /***************************************************************************
2 * *
3 * LinuxSampler - modular, streaming capable sampler *
4 * *
5 * Copyright (C) 2003, 2004 by Benno Senoner and Christian Schoenebeck *
6 * Copyright (C) 2005 - 2008 Christian Schoenebeck *
7 * Copyright (C) 2009 - 2010 Christian Schoenebeck and Grigor Iliev *
8 * *
9 * This program is free software; you can redistribute it and/or modify *
10 * it under the terms of the GNU General Public License as published by *
11 * the Free Software Foundation; either version 2 of the License, or *
12 * (at your option) any later version. *
13 * *
14 * This program is distributed in the hope that it will be useful, *
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
17 * GNU General Public License for more details. *
18 * *
19 * You should have received a copy of the GNU General Public License *
20 * along with this program; if not, write to the Free Software *
21 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, *
22 * MA 02111-1307 USA *
23 ***************************************************************************/
24
25 #include "Voice.h"
26
27 #include "Engine.h"
28 #include "EngineChannel.h"
29
30 namespace LinuxSampler { namespace sf2 {
31
32 Voice::Voice() {
33 pEngine = NULL;
34 pEG1 = &EG1;
35 }
36
37 Voice::~Voice() {
38
39 }
40
41 EngineChannel* Voice::GetSf2EngineChannel() {
42 return static_cast<EngineChannel*>(pEngineChannel);
43 }
44
45 void Voice::SetEngine(LinuxSampler::Engine* pEngine) {
46 Engine* engine = static_cast<Engine*>(pEngine);
47 this->pEngine = engine;
48 this->pDiskThread = engine->pDiskThread;
49 dmsg(6,("Voice::SetEngine()\n"));
50 }
51
52 Voice::SampleInfo Voice::GetSampleInfo() {
53 SampleInfo si;
54 si.SampleRate = pSample->SampleRate;
55 si.ChannelCount = pSample->GetChannelCount();
56 si.FrameSize = pSample->GetFrameSize();
57 si.BitDepth = (pSample->GetFrameSize() / pSample->GetChannelCount()) * 8;
58 si.TotalFrameCount = pSample->GetTotalFrameCount();
59
60 si.HasLoops = pRegion->HasLoop;
61 si.LoopStart = (si.HasLoops) ? pRegion->LoopStart : 0;
62 si.LoopLength = (si.HasLoops) ? ((pRegion->LoopEnd) - pRegion->LoopStart): 0;
63 si.LoopPlayCount = 0; // TODO:
64 si.Unpitched = pSample->IsUnpitched();
65
66 return si;
67 }
68
69 Voice::RegionInfo Voice::GetRegionInfo() {
70 ::sf2::Region* reg = NULL;
71 ::sf2::Preset* preset = GetSf2EngineChannel()->pInstrument;
72 for (int i = 0; i < preset->GetRegionCount(); i++) { // TODO: some optimization?
73 if (preset->GetRegion(i)->pInstrument == pRegion->GetParentInstrument()) {
74 reg = preset->GetRegion(i); // TODO: Can the instrument belongs to more than one preset regions?
75 break;
76 }
77 }
78
79 RegionInfo ri;
80 ri.UnityNote = pRegion->GetUnityNote();
81 ri.FineTune = pRegion->GetFineTune(reg) + (pRegion->GetCoarseTune(reg) * 100);
82 ri.Pan = pRegion->GetPan(reg);
83 ri.SampleStartOffset = pRegion->startAddrsOffset + pRegion->startAddrsCoarseOffset;
84
85 // sample amplitude
86 ri.EG1PreAttack = 1000;
87 ri.EG1Attack = pRegion->GetEG1Attack(reg);
88 ri.EG1Hold = pRegion->GetEG1Hold(reg);
89 ri.EG1Decay1 = pRegion->GetEG1Decay(reg);
90 ri.EG1Decay2 = pRegion->GetEG1Decay(reg);
91 ri.EG1Sustain = pRegion->GetEG1Sustain(reg);
92 ri.EG1InfiniteSustain = true;
93 ri.EG1Release = pRegion->GetEG1Release(reg);
94
95 // filter cutoff frequency
96 ri.EG2PreAttack = 1000;
97 ri.EG2Attack = pRegion->GetEG2Attack(reg);
98 //ri.EG2Hold = pRegion->EG2Hold; // TODO:
99 ri.EG2Decay1 = pRegion->GetEG2Decay(reg);
100 ri.EG2Decay2 = pRegion->GetEG2Decay(reg);
101 ri.EG2Sustain = pRegion->GetEG2Sustain(reg);
102 ri.EG2InfiniteSustain = true;
103 ri.EG2Release = pRegion->GetEG2Release(reg);
104
105 // sample pitch
106 ri.EG3Attack = 0; // TODO:
107 ri.EG3Depth = 0; // TODO:
108 ri.VCFEnabled = false; // TODO:
109 ri.VCFType = ::gig::vcf_type_lowpass; // TODO:
110 ri.VCFResonance = 0; // TODO:
111
112 ri.ReleaseTriggerDecay = 0; // TODO:
113
114 return ri;
115 }
116
117 Voice::InstrumentInfo Voice::GetInstrumentInfo() {
118 InstrumentInfo ii;
119 ii.FineTune = 0; // TODO:
120 ii.PitchbendRange = 2; // TODO:
121
122 return ii;
123 }
124
125 double Voice::GetSampleAttenuation() {
126 return 1.0; // TODO:
127 }
128
129 double Voice::GetVelocityAttenuation(uint8_t MIDIKeyVelocity) {
130 return double(MIDIKeyVelocity) / 127.0f; // TODO:
131 }
132
133 double Voice::GetVelocityRelease(uint8_t MIDIKeyVelocity) {
134 return 0.9; // TODO:
135 }
136
137 void Voice::ProcessCCEvent(RTList<Event>::Iterator& itEvent) {
138 /*if (itEvent->Type == Event::type_control_change && itEvent->Param.CC.Controller) { // if (valid) MIDI control change event
139 if (pRegion->AttenuationController.type == ::gig::attenuation_ctrl_t::type_controlchange &&
140 itEvent->Param.CC.Controller == pRegion->AttenuationController.controller_number) {
141 CrossfadeSmoother.update(AbstractEngine::CrossfadeCurve[CrossfadeAttenuation(itEvent->Param.CC.Value)]);
142 }
143 }*/ // TODO: ^^^
144 }
145
146 void Voice::ProcessCutoffEvent(RTList<Event>::Iterator& itEvent) {
147 /*int ccvalue = itEvent->Param.CC.Value;
148 if (VCFCutoffCtrl.value == ccvalue) return;
149 VCFCutoffCtrl.value == ccvalue;
150 if (pRegion->VCFCutoffControllerInvert) ccvalue = 127 - ccvalue;
151 if (ccvalue < pRegion->VCFVelocityScale) ccvalue = pRegion->VCFVelocityScale;
152 float cutoff = CutoffBase * float(ccvalue);
153 if (cutoff > 127.0f) cutoff = 127.0f;
154
155 VCFCutoffCtrl.fvalue = cutoff; // needed for initialization of fFinalCutoff next time
156 fFinalCutoff = cutoff;*/ // TODO: ^^^
157 }
158
159 double Voice::CalculateCrossfadeVolume(uint8_t MIDIKeyVelocity) {
160 /*float crossfadeVolume;
161 switch (pRegion->AttenuationController.type) {
162 case ::gig::attenuation_ctrl_t::type_channelaftertouch:
163 crossfadeVolume = Engine::CrossfadeCurve[CrossfadeAttenuation(GetSf2EngineChannel()->ControllerTable[128])];
164 break;
165 case ::gig::attenuation_ctrl_t::type_velocity:
166 crossfadeVolume = Engine::CrossfadeCurve[CrossfadeAttenuation(MIDIKeyVelocity)];
167 break;
168 case ::gig::attenuation_ctrl_t::type_controlchange: //FIXME: currently not sample accurate
169 crossfadeVolume = Engine::CrossfadeCurve[CrossfadeAttenuation(GetSf2EngineChannel()->ControllerTable[pRegion->AttenuationController.controller_number])];
170 break;
171 case ::gig::attenuation_ctrl_t::type_none: // no crossfade defined
172 default:
173 crossfadeVolume = 1.0f;
174 }
175
176 return crossfadeVolume;*/ // TODO: ^^^
177 return 1.0f;
178 }
179
180 double Voice::GetEG1ControllerValue(uint8_t MIDIKeyVelocity) {
181 /*double eg1controllervalue = 0;
182 switch (pRegion->EG1Controller.type) {
183 case ::gig::eg1_ctrl_t::type_none: // no controller defined
184 eg1controllervalue = 0;
185 break;
186 case ::gig::eg1_ctrl_t::type_channelaftertouch:
187 eg1controllervalue = GetSf2EngineChannel()->ControllerTable[128];
188 break;
189 case ::gig::eg1_ctrl_t::type_velocity:
190 eg1controllervalue = MIDIKeyVelocity;
191 break;
192 case ::gig::eg1_ctrl_t::type_controlchange: // MIDI control change controller
193 eg1controllervalue = GetSf2EngineChannel()->ControllerTable[pRegion->EG1Controller.controller_number];
194 break;
195 }
196 if (pRegion->EG1ControllerInvert) eg1controllervalue = 127 - eg1controllervalue;
197
198 return eg1controllervalue;*/ // TODO: ^^^
199 return 0;
200 }
201
202 Voice::EGInfo Voice::CalculateEG1ControllerInfluence(double eg1ControllerValue) {
203 /*EGInfo eg;
204 // (eg1attack is different from the others)
205 eg.Attack = (pRegion->EG1ControllerAttackInfluence) ?
206 1 + 0.031 * (double) (pRegion->EG1ControllerAttackInfluence == 1 ?
207 1 : 1 << pRegion->EG1ControllerAttackInfluence) * eg1ControllerValue : 1.0;
208 eg.Decay = (pRegion->EG1ControllerDecayInfluence) ? 1 + 0.00775 * (double) (1 << pRegion->EG1ControllerDecayInfluence) * eg1ControllerValue : 1.0;
209 eg.Release = (pRegion->EG1ControllerReleaseInfluence) ? 1 + 0.00775 * (double) (1 << pRegion->EG1ControllerReleaseInfluence) * eg1ControllerValue : 1.0;
210
211 return eg;*/ // TODO: ^^^
212 EGInfo eg;
213 eg.Attack = 1.0;
214 eg.Decay = 1.0;
215 eg.Release = 1.0;
216 return eg;
217 }
218
219 void Voice::TriggerEG1(const EGInfo& egInfo, double velrelease, double velocityAttenuation, uint sampleRate, uint8_t velocity) {
220 EG1.trigger(uint(RgnInfo.EG1PreAttack),
221 RgnInfo.EG1Attack * egInfo.Attack,
222 RgnInfo.EG1Hold,
223 RgnInfo.EG1Decay1 * egInfo.Decay * velrelease,
224 RgnInfo.EG1Decay2 * egInfo.Decay * velrelease,
225 RgnInfo.EG1InfiniteSustain,
226 uint(RgnInfo.EG1Sustain),
227 RgnInfo.EG1Release * egInfo.Release * velrelease,
228 velocityAttenuation,
229 sampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
230 }
231
232 double Voice::GetEG2ControllerValue(uint8_t MIDIKeyVelocity) {
233 /*double eg2controllervalue = 0;
234 switch (pRegion->EG2Controller.type) {
235 case ::gig::eg2_ctrl_t::type_none: // no controller defined
236 eg2controllervalue = 0;
237 break;
238 case ::gig::eg2_ctrl_t::type_channelaftertouch:
239 eg2controllervalue = GetSf2EngineChannel()->ControllerTable[128];
240 break;
241 case ::gig::eg2_ctrl_t::type_velocity:
242 eg2controllervalue = MIDIKeyVelocity;
243 break;
244 case ::gig::eg2_ctrl_t::type_controlchange: // MIDI control change controller
245 eg2controllervalue = GetSf2EngineChannel()->ControllerTable[pRegion->EG2Controller.controller_number];
246 break;
247 }
248 if (pRegion->EG2ControllerInvert) eg2controllervalue = 127 - eg2controllervalue;
249
250 return eg2controllervalue;*/ // TODO: ^^^
251 return 0;
252 }
253
254 Voice::EGInfo Voice::CalculateEG2ControllerInfluence(double eg2ControllerValue) {
255 /*EGInfo eg;
256 eg.Attack = (pRegion->EG2ControllerAttackInfluence) ? 1 + 0.00775 * (double) (1 << pRegion->EG2ControllerAttackInfluence) * eg2ControllerValue : 1.0;
257 eg.Decay = (pRegion->EG2ControllerDecayInfluence) ? 1 + 0.00775 * (double) (1 << pRegion->EG2ControllerDecayInfluence) * eg2ControllerValue : 1.0;
258 eg.Release = (pRegion->EG2ControllerReleaseInfluence) ? 1 + 0.00775 * (double) (1 << pRegion->EG2ControllerReleaseInfluence) * eg2ControllerValue : 1.0;
259
260 return eg;*/ // TODO: ^^^
261 EGInfo eg;
262 eg.Attack = 1.0;
263 eg.Decay = 1.0;
264 eg.Release = 1.0;
265 return eg;
266 }
267
268 void Voice::InitLFO1() {
269 /*uint16_t lfo1_internal_depth;
270 switch (pRegion->LFO1Controller) {
271 case ::gig::lfo1_ctrl_internal:
272 lfo1_internal_depth = pRegion->LFO1InternalDepth;
273 pLFO1->ExtController = 0; // no external controller
274 bLFO1Enabled = (lfo1_internal_depth > 0);
275 break;
276 case ::gig::lfo1_ctrl_modwheel:
277 lfo1_internal_depth = 0;
278 pLFO1->ExtController = 1; // MIDI controller 1
279 bLFO1Enabled = (pRegion->LFO1ControlDepth > 0);
280 break;
281 case ::gig::lfo1_ctrl_breath:
282 lfo1_internal_depth = 0;
283 pLFO1->ExtController = 2; // MIDI controller 2
284 bLFO1Enabled = (pRegion->LFO1ControlDepth > 0);
285 break;
286 case ::gig::lfo1_ctrl_internal_modwheel:
287 lfo1_internal_depth = pRegion->LFO1InternalDepth;
288 pLFO1->ExtController = 1; // MIDI controller 1
289 bLFO1Enabled = (lfo1_internal_depth > 0 || pRegion->LFO1ControlDepth > 0);
290 break;
291 case ::gig::lfo1_ctrl_internal_breath:
292 lfo1_internal_depth = pRegion->LFO1InternalDepth;
293 pLFO1->ExtController = 2; // MIDI controller 2
294 bLFO1Enabled = (lfo1_internal_depth > 0 || pRegion->LFO1ControlDepth > 0);
295 break;
296 default:
297 lfo1_internal_depth = 0;
298 pLFO1->ExtController = 0; // no external controller
299 bLFO1Enabled = false;
300 }
301 if (bLFO1Enabled) {
302 pLFO1->trigger(pRegion->LFO1Frequency,
303 start_level_min,
304 lfo1_internal_depth,
305 pRegion->LFO1ControlDepth,
306 pRegion->LFO1FlipPhase,
307 pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
308 pLFO1->update(pLFO1->ExtController ? GetSf2EngineChannel()->ControllerTable[pLFO1->ExtController] : 0);
309 }*/ // TODO: ^^^
310 bLFO1Enabled = false;
311 }
312
313 void Voice::InitLFO2() {
314 /*uint16_t lfo2_internal_depth;
315 switch (pRegion->LFO2Controller) {
316 case ::gig::lfo2_ctrl_internal:
317 lfo2_internal_depth = pRegion->LFO2InternalDepth;
318 pLFO2->ExtController = 0; // no external controller
319 bLFO2Enabled = (lfo2_internal_depth > 0);
320 break;
321 case ::gig::lfo2_ctrl_modwheel:
322 lfo2_internal_depth = 0;
323 pLFO2->ExtController = 1; // MIDI controller 1
324 bLFO2Enabled = (pRegion->LFO2ControlDepth > 0);
325 break;
326 case ::gig::lfo2_ctrl_foot:
327 lfo2_internal_depth = 0;
328 pLFO2->ExtController = 4; // MIDI controller 4
329 bLFO2Enabled = (pRegion->LFO2ControlDepth > 0);
330 break;
331 case ::gig::lfo2_ctrl_internal_modwheel:
332 lfo2_internal_depth = pRegion->LFO2InternalDepth;
333 pLFO2->ExtController = 1; // MIDI controller 1
334 bLFO2Enabled = (lfo2_internal_depth > 0 || pRegion->LFO2ControlDepth > 0);
335 break;
336 case ::gig::lfo2_ctrl_internal_foot:
337 lfo2_internal_depth = pRegion->LFO2InternalDepth;
338 pLFO2->ExtController = 4; // MIDI controller 4
339 bLFO2Enabled = (lfo2_internal_depth > 0 || pRegion->LFO2ControlDepth > 0);
340 break;
341 default:
342 lfo2_internal_depth = 0;
343 pLFO2->ExtController = 0; // no external controller
344 bLFO2Enabled = false;
345 }
346 if (bLFO2Enabled) {
347 pLFO2->trigger(pRegion->LFO2Frequency,
348 start_level_max,
349 lfo2_internal_depth,
350 pRegion->LFO2ControlDepth,
351 pRegion->LFO2FlipPhase,
352 pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
353 pLFO2->update(pLFO2->ExtController ? GetSf2EngineChannel()->ControllerTable[pLFO2->ExtController] : 0);
354 }*/ // TODO: ^^^
355 bLFO2Enabled = false;
356 }
357
358 void Voice::InitLFO3() {
359 /*uint16_t lfo3_internal_depth;
360 switch (pRegion->LFO3Controller) {
361 case ::gig::lfo3_ctrl_internal:
362 lfo3_internal_depth = pRegion->LFO3InternalDepth;
363 pLFO3->ExtController = 0; // no external controller
364 bLFO3Enabled = (lfo3_internal_depth > 0);
365 break;
366 case ::gig::lfo3_ctrl_modwheel:
367 lfo3_internal_depth = 0;
368 pLFO3->ExtController = 1; // MIDI controller 1
369 bLFO3Enabled = (pRegion->LFO3ControlDepth > 0);
370 break;
371 case ::gig::lfo3_ctrl_aftertouch:
372 lfo3_internal_depth = 0;
373 pLFO3->ExtController = 128;
374 bLFO3Enabled = true;
375 break;
376 case ::gig::lfo3_ctrl_internal_modwheel:
377 lfo3_internal_depth = pRegion->LFO3InternalDepth;
378 pLFO3->ExtController = 1; // MIDI controller 1
379 bLFO3Enabled = (lfo3_internal_depth > 0 || pRegion->LFO3ControlDepth > 0);
380 break;
381 case ::gig::lfo3_ctrl_internal_aftertouch:
382 lfo3_internal_depth = pRegion->LFO3InternalDepth;
383 pLFO1->ExtController = 128;
384 bLFO3Enabled = (lfo3_internal_depth > 0 || pRegion->LFO3ControlDepth > 0);
385 break;
386 default:
387 lfo3_internal_depth = 0;
388 pLFO3->ExtController = 0; // no external controller
389 bLFO3Enabled = false;
390 }
391 if (bLFO3Enabled) {
392 pLFO3->trigger(pRegion->LFO3Frequency,
393 start_level_mid,
394 lfo3_internal_depth,
395 pRegion->LFO3ControlDepth,
396 false,
397 pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
398 pLFO3->update(pLFO3->ExtController ? GetSf2EngineChannel()->ControllerTable[pLFO3->ExtController] : 0);
399 }*/ // TODO: ^^^
400 bLFO3Enabled = false;
401 }
402
403 float Voice::CalculateCutoffBase(uint8_t MIDIKeyVelocity) {
404 /*float cutoff = pRegion->GetVelocityCutoff(MIDIKeyVelocity);
405 if (pRegion->VCFKeyboardTracking) {
406 cutoff *= exp((MIDIKeyVelocity - pRegion->VCFKeyboardTrackingBreakpoint) * 0.057762265f); // (ln(2) / 12)
407 }
408 return cutoff;*/ // TODO: ^^^
409 return 1.0f;
410 }
411
412 float Voice::CalculateFinalCutoff(float cutoffBase) {
413 /*int cvalue;
414 if (VCFCutoffCtrl.controller) {
415 cvalue = GetSf2EngineChannel()->ControllerTable[VCFCutoffCtrl.controller];
416 if (pRegion->VCFCutoffControllerInvert) cvalue = 127 - cvalue;
417 // VCFVelocityScale in this case means Minimum cutoff
418 if (cvalue < pRegion->VCFVelocityScale) cvalue = pRegion->VCFVelocityScale;
419 }
420 else {
421 cvalue = pRegion->VCFCutoff;
422 }
423 float fco = cutoffBase * float(cvalue);
424 if (fco > 127.0f) fco = 127.0f;
425
426 return fco;*/ // TODO: ^^^
427 return 0.0f;
428 }
429
430 uint8_t Voice::GetVCFCutoffCtrl() {
431 /*uint8_t ctrl;
432 switch (pRegion->VCFCutoffController) {
433 case ::gig::vcf_cutoff_ctrl_modwheel:
434 ctrl = 1;
435 break;
436 case ::gig::vcf_cutoff_ctrl_effect1:
437 ctrl = 12;
438 break;
439 case ::gig::vcf_cutoff_ctrl_effect2:
440 ctrl = 13;
441 break;
442 case ::gig::vcf_cutoff_ctrl_breath:
443 ctrl = 2;
444 break;
445 case ::gig::vcf_cutoff_ctrl_foot:
446 ctrl = 4;
447 break;
448 case ::gig::vcf_cutoff_ctrl_sustainpedal:
449 ctrl = 64;
450 break;
451 case ::gig::vcf_cutoff_ctrl_softpedal:
452 ctrl = 67;
453 break;
454 case ::gig::vcf_cutoff_ctrl_genpurpose7:
455 ctrl = 82;
456 break;
457 case ::gig::vcf_cutoff_ctrl_genpurpose8:
458 ctrl = 83;
459 break;
460 case ::gig::vcf_cutoff_ctrl_aftertouch:
461 ctrl = 128;
462 break;
463 case ::gig::vcf_cutoff_ctrl_none:
464 default:
465 ctrl = 0;
466 break;
467 }
468
469 return ctrl;*/ // TODO: ^^^
470 return 0;
471 }
472
473 uint8_t Voice::GetVCFResonanceCtrl() {
474 /*uint8_t ctrl;
475 switch (pRegion->VCFResonanceController) {
476 case ::gig::vcf_res_ctrl_genpurpose3:
477 ctrl = 18;
478 break;
479 case ::gig::vcf_res_ctrl_genpurpose4:
480 ctrl = 19;
481 break;
482 case ::gig::vcf_res_ctrl_genpurpose5:
483 ctrl = 80;
484 break;
485 case ::gig::vcf_res_ctrl_genpurpose6:
486 ctrl = 81;
487 break;
488 case ::gig::vcf_res_ctrl_none:
489 default:
490 ctrl = 0;
491 }
492
493 return ctrl;*/ // TODO: ^^^
494 return 0;
495 }
496
497 }} // namespace LinuxSampler::sf2

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