/[svn]/linuxsampler/trunk/src/engines/sfz/SfzSignalUnitRack.h
ViewVC logotype

Contents of /linuxsampler/trunk/src/engines/sfz/SfzSignalUnitRack.h

Parent Directory Parent Directory | Revision Log Revision Log


Revision 3118 - (show annotations) (download) (as text)
Fri Apr 21 13:33:03 2017 UTC (7 months, 3 weeks ago) by schoenebeck
File MIME type: text/x-c++hdr
File size: 18063 byte(s)
* NKSP: Fixed crash when using built-in script array variable "%ALL_EVENTS".
* NKSP: Added built-in function "change_amp_lfo_depth()".
* NKSP: Added built-in function "change_amp_lfo_freq()".
* NKSP: Added built-in function "change_pitch_lfo_depth()".
* NKSP: Added built-in function "change_pitch_lfo_freq()".
* Bumped version (2.0.0.svn44).

1 /***************************************************************************
2 * *
3 * LinuxSampler - modular, streaming capable sampler *
4 * *
5 * Copyright (C) 2011 - 2012 Grigor Iliev *
6 * *
7 * This program is free software; you can redistribute it and/or modify *
8 * it under the terms of the GNU General Public License as published by *
9 * the Free Software Foundation; either version 2 of the License, or *
10 * (at your option) any later version. *
11 * *
12 * This program is distributed in the hope that it will be useful, *
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
15 * GNU General Public License for more details. *
16 * *
17 * You should have received a copy of the GNU General Public License *
18 * along with this program; if not, write to the Free Software *
19 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, *
20 * MA 02111-1307 USA *
21 ***************************************************************************/
22
23 #ifndef __LS_SFZSIGNALUNITRACK_H__
24 #define __LS_SFZSIGNALUNITRACK_H__
25
26 #include "../common/SignalUnitRack.h"
27 #include "EG.h"
28 #include "EGADSR.h"
29 #include "../common/AbstractVoice.h"
30 #include "../common/PulseLFO.h"
31 #include "../common/SawLFO.h"
32 #include "../common/SineLFO.h"
33
34 namespace LinuxSampler { namespace sfz {
35 const int MaxUnitCount = 200;
36 const int maxEgCount = 30; // Maximum number of v2 envelope generators
37 const int maxLfoCount = 30; // Maximum number of v2 LFOs
38
39 class Voice;
40 class SfzSignalUnitRack;
41
42 class SfzSignalUnit: public SignalUnit {
43 public:
44 Voice* pVoice;
45
46 SfzSignalUnit(SfzSignalUnitRack* rack);
47 SfzSignalUnit(const SfzSignalUnit& Unit): SignalUnit(Unit.pRack) { Copy(Unit); }
48
49 void Copy(const SfzSignalUnit& Unit) {
50 pVoice = Unit.pVoice;
51
52 SignalUnit::Copy(Unit);
53 }
54
55 double GetSampleRate();
56 float GetInfluence(ArrayList< ::sfz::CC>& cc);
57 };
58
59
60 class CCUnit: public CCSignalUnit {
61 public:
62 Voice* pVoice;
63
64 CCUnit(SfzSignalUnitRack* rack, Listener* l = NULL);
65
66 virtual void Trigger();
67
68 void SetCCs(::sfz::Array<int>& pCC);
69 void SetCCs(::sfz::Array<float>& pCC);
70 void SetCCs(ArrayList< ::sfz::CC>& cc);
71
72 virtual void AddSmoothCC(uint8_t Controller, float Influence, short int Curve, float Smooth, float Step);
73
74 int GetCurveCount();
75 ::sfz::Curve* GetCurve(int idx);
76
77 double GetSampleRate();
78 };
79
80 class CurveCCUnit: public CCUnit {
81 public:
82 CurveCCUnit(SfzSignalUnitRack* rack, Listener* l = NULL): CCUnit(rack, l) { }
83
84 virtual float Normalize(uint8_t val, short int curve = -1) {
85 if (curve == -1) return val / 127.0f;
86 return GetCurve(curve)->v[val];
87 }
88 };
89
90
91
92 class SmoothCCUnit: public CurveCCUnit {
93 protected:
94 RTList<Smoother>* pSmoothers;
95 public:
96 SmoothCCUnit(SfzSignalUnitRack* rack, Listener* l = NULL): CurveCCUnit(rack, l), pSmoothers(NULL) { }
97 virtual ~SmoothCCUnit();
98
99 virtual void AddSmoothCC(uint8_t Controller, float Influence, short int Curve, float Smooth, float Step);
100 virtual void RemoveAllCCs() { CurveCCUnit::RemoveAllCCs(); pSmoothers->clear(); }
101 virtual void InitCCList(Pool<CC>* pCCPool, Pool<Smoother>* pSmootherPool);
102
103 void InitSmoothers(Pool<Smoother>* pSmootherPool);
104 };
105
106
107 class EqUnitSupport {
108 public:
109 EqUnitSupport(SfzSignalUnitRack* pRack, Voice* pVoice = NULL);
110
111 SmoothCCUnit suEq1GainOnCC;
112 SmoothCCUnit suEq2GainOnCC;
113 SmoothCCUnit suEq3GainOnCC;
114
115 SmoothCCUnit suEq1FreqOnCC;
116 SmoothCCUnit suEq2FreqOnCC;
117 SmoothCCUnit suEq3FreqOnCC;
118
119 SmoothCCUnit suEq1BwOnCC;
120 SmoothCCUnit suEq2BwOnCC;
121 SmoothCCUnit suEq3BwOnCC;
122
123 void SetVoice(Voice* pVoice);
124 void ImportUnits(SfzSignalUnitRack* pRack);
125 void ResetUnits();
126 void InitCCLists(Pool<CCSignalUnit::CC>* pCCPool, Pool<Smoother>* pSmootherPool);
127 };
128
129
130 class XFInCCUnit: public CCUnit {
131 public:
132 XFInCCUnit(SfzSignalUnitRack* rack, Listener* l = NULL): CCUnit(rack, l) { }
133
134 virtual bool Active() { return !pCtrls->isEmpty(); }
135 virtual void Calculate();
136 virtual void SetCrossFadeCCs(::sfz::Array<int>& loCCs, ::sfz::Array<int>& hiCCs);
137 };
138
139
140 class XFOutCCUnit: public XFInCCUnit {
141 public:
142 XFOutCCUnit(SfzSignalUnitRack* rack, Listener* l = NULL): XFInCCUnit(rack, l) { }
143
144 virtual void Calculate();
145 };
146
147
148 template <class T>
149 class EGUnit: public SfzSignalUnit {
150 public:
151 ::sfz::EG* pEGInfo;
152 T EG;
153
154 EGUnit(SfzSignalUnitRack* rack): SfzSignalUnit(rack), pEGInfo(NULL) { }
155 EGUnit(const EGUnit& Unit): SfzSignalUnit(Unit) { Copy(Unit); }
156 void operator=(const EGUnit& Unit) { Copy(Unit); }
157
158 void Copy(const EGUnit& Unit) {
159 pEGInfo = Unit.pEGInfo;
160
161 SfzSignalUnit::Copy(Unit);
162 }
163
164 virtual bool Active() { return EG.active(); }
165 virtual float GetLevel() { return DelayStage() ? 0 : EG.getLevel(); }
166
167 virtual void EnterReleaseStage() { EG.update(EG::event_release, GetSampleRate()); }
168 virtual void CancelRelease() { EG.update(EG::event_cancel_release, GetSampleRate()); }
169
170 virtual void Increment() {
171 if (DelayStage()) return;
172
173 SfzSignalUnit::Increment();
174 if (!EG.active()) return;
175
176 switch (EG.getSegmentType()) {
177 case EG::segment_lin:
178 EG.processLin();
179 break;
180 case EG::segment_exp:
181 EG.processExp();
182 break;
183 case EG::segment_end:
184 EG.getLevel();
185 break; // noop
186 case EG::segment_pow:
187 EG.processPow();
188 break;
189 }
190
191 if (EG.active()) {
192 EG.increment(1);
193 if (!EG.toStageEndLeft()) EG.update(EG::event_stage_end, GetSampleRate());
194 }
195 }
196 };
197
198 class EGv1Unit: public EGUnit<EGADSR> {
199 public:
200 int depth;
201 EGv1Unit(SfzSignalUnitRack* rack): EGUnit<EGADSR>(rack), depth(0) { }
202 };
203
204 class EGv2Unit: public EGUnit< ::LinuxSampler::sfz::EG>, public EqUnitSupport {
205 protected:
206 ::sfz::EG egInfo;
207 public:
208 CCUnit suAmpOnCC;
209 CCUnit suVolOnCC;
210 CCUnit suPitchOnCC;
211 CCUnit suCutoffOnCC;
212 CCUnit suResOnCC;
213 CurveCCUnit suPanOnCC;
214
215 EGv2Unit(SfzSignalUnitRack* rack);
216 virtual void Trigger();
217 };
218
219 class PitchEGUnit: public EGv1Unit {
220 public:
221 PitchEGUnit(SfzSignalUnitRack* rack): EGv1Unit(rack) { }
222 virtual void Trigger();
223 };
224
225 class FilEGUnit: public EGv1Unit {
226 public:
227 FilEGUnit(SfzSignalUnitRack* rack): EGv1Unit(rack) { }
228 virtual void Trigger();
229 };
230
231 class AmpEGUnit: public EGv1Unit {
232 public:
233 AmpEGUnit(SfzSignalUnitRack* rack): EGv1Unit(rack) { }
234 virtual void Trigger();
235 };
236
237 class AbstractLfo {
238 public:
239 virtual float Render() = 0;
240 virtual void Update(const uint16_t& ExtControlValue) = 0;
241 virtual void Trigger(float Frequency, start_level_t StartLevel, uint16_t InternalDepth, uint16_t ExtControlDepth, bool FlipPhase, unsigned int SampleRate) = 0;
242 virtual void SetPhase(float phase) = 0;
243 virtual void SetFrequency(float Frequency, unsigned int SampleRate) = 0;
244 };
245
246 template <class T>
247 class LfoBase: public AbstractLfo, public T {
248 public:
249 LfoBase(float Max): T(Max) { }
250 virtual float Render() { return T::render(); }
251
252 virtual void Update(const uint16_t& ExtControlValue) { T::updateByMIDICtrlValue(ExtControlValue); }
253
254 virtual void Trigger (
255 float Frequency, start_level_t StartLevel, uint16_t InternalDepth,
256 uint16_t ExtControlDepth, bool FlipPhase, unsigned int SampleRate
257 ) {
258 T::trigger(Frequency, StartLevel, InternalDepth, ExtControlDepth, FlipPhase, SampleRate);
259 }
260
261 virtual void SetPhase(float phase) { T::setPhase(phase); }
262
263 virtual void SetFrequency(float Frequency, unsigned int SampleRate) {
264 T::setFrequency(Frequency, SampleRate);
265 }
266 };
267
268 class LFOUnit;
269
270 class FadeEGUnit: public EGUnit<EGADSR> {
271 public:
272 FadeEGUnit(SfzSignalUnitRack* rack): EGUnit<EGADSR>(rack) { }
273 virtual void Trigger() { }
274 virtual void EnterReleaseStage() { }
275 virtual void CancelRelease() { }
276
277 friend class LFOUnit;
278 };
279
280 class LFOUnit: public SfzSignalUnit, public CCSignalUnit::Listener {
281 public:
282 ::sfz::LFO* pLfoInfo;
283 AbstractLfo* pLFO;
284 FadeEGUnit suFadeEG;
285 SmoothCCUnit suDepthOnCC;
286 SmoothCCUnit suFreqOnCC;
287
288 LFOUnit(SfzSignalUnitRack* rack);
289 LFOUnit(const LFOUnit& Unit);
290 void operator=(const LFOUnit& Unit) { Copy(Unit); }
291
292 void Copy(const LFOUnit& Unit) {
293 pLfoInfo = Unit.pLfoInfo;
294 suFadeEG = Unit.suFadeEG;
295
296 SfzSignalUnit::Copy(Unit);
297 }
298
299 virtual void Trigger();
300 virtual void Increment();
301 virtual float GetLevel() { return Level; }
302
303 // CCSignalUnit::Listener interface implementation
304 virtual void ValueChanged(CCSignalUnit* pUnit);
305 };
306
307 class LFOv1Unit: public LFOUnit {
308 public:
309 ::sfz::LFO lfoInfo;
310 LfoBase<LFOSigned> lfo;
311
312 LFOv1Unit(SfzSignalUnitRack* rack): LFOUnit(rack), lfo(1200.0f) {
313 pLfoInfo = &lfoInfo; pLFO = &lfo;
314 }
315
316 virtual void Trigger();
317 };
318
319 class LFOv2Unit: public LFOUnit, public EqUnitSupport {
320 protected:
321 FixedArray<AbstractLfo*> lfos;
322 LfoBase<LFOSigned> lfo0; // triangle
323 LfoBase<SineLFO<range_signed> > lfo1; // sine
324 LfoBase<PulseLFO<range_unsigned, 750> > lfo2; // pulse 75%
325 LfoBase<SquareLFO<range_signed> > lfo3; // square
326 LfoBase<PulseLFO<range_unsigned, 250> > lfo4; // pulse 25%
327 LfoBase<PulseLFO<range_unsigned, 125> > lfo5; // pulse 12,5%
328 LfoBase<SawLFO<range_unsigned, true> > lfo6; // saw up
329 LfoBase<SawLFO<range_unsigned, false> > lfo7; // saw down
330
331
332 public:
333 SmoothCCUnit suVolOnCC;
334 SmoothCCUnit suPitchOnCC;
335 SmoothCCUnit suPanOnCC;
336 SmoothCCUnit suCutoffOnCC;
337 SmoothCCUnit suResOnCC;
338
339 LFOv2Unit(SfzSignalUnitRack* rack);
340
341 virtual void Trigger();
342 virtual bool Active() { return true; }
343 };
344
345 class AmpLFOUnit: public LFOv1Unit {
346 public:
347 AmpLFOUnit(SfzSignalUnitRack* rack): LFOv1Unit(rack) { }
348
349 virtual void Trigger();
350 };
351
352 class PitchLFOUnit: public LFOv1Unit {
353 public:
354 PitchLFOUnit(SfzSignalUnitRack* rack): LFOv1Unit(rack) { }
355
356 virtual void Trigger();
357 };
358
359 class FilLFOUnit: public LFOv1Unit {
360 public:
361 FilLFOUnit(SfzSignalUnitRack* rack): LFOv1Unit(rack) { }
362
363 virtual void Trigger();
364 };
365
366
367 class EndpointUnit: public EndpointSignalUnit {
368 private:
369 float xfCoeff; // crossfade coefficient
370 float pitchVeltrackRatio;
371
372 public:
373 Voice* pVoice;
374 XFInCCUnit suXFInCC;
375 XFOutCCUnit suXFOutCC;
376 SmoothCCUnit suPanOnCC;
377
378 EndpointUnit(SfzSignalUnitRack* rack);
379
380 virtual void Trigger();
381
382 /**
383 * The endpoint should be active until the volume EG is active.
384 * This method determines the end of the voice playback.
385 */
386 virtual bool Active();
387
388 virtual float GetVolume();
389 virtual float GetFilterCutoff();
390 virtual float GetPitch();
391 virtual float GetResonance();
392 virtual float GetPan();
393
394 SfzSignalUnitRack* const GetRack();
395
396 virtual float CalculateResonance(float res) {
397 return GetResonance() + res;
398 }
399
400 virtual float CalculateFilterCutoff(float cutoff);
401
402 float GetInfluence(::sfz::Array< optional<float> >& cc);
403 float GetInfluence(::sfz::Array< optional<int> >& cc);
404 };
405
406
407 class SfzSignalUnitRack : public SignalUnitRack, public EqUnitSupport {
408 private:
409 EndpointUnit suEndpoint;
410 AmpEGUnit suVolEG;
411 FilEGUnit suFilEG;
412 PitchEGUnit suPitchEG;
413
414 AmpLFOUnit suAmpLFO;
415 PitchLFOUnit suPitchLFO;
416 FilLFOUnit suFilLFO;
417
418 // SFZ v2
419
420 SmoothCCUnit suVolOnCC;
421 SmoothCCUnit suPitchOnCC;
422 SmoothCCUnit suCutoffOnCC;
423 SmoothCCUnit suResOnCC;
424
425 FixedArray<EGv2Unit*> EGs;
426
427 // used for optimization - contains only the ones that are modulating volume
428 FixedArray<EGv2Unit*> volEGs;
429
430 // used for optimization - contains only the ones that are modulating pitch
431 FixedArray<EGv2Unit*> pitchEGs;
432
433 // used for optimization - contains only the ones that are modulating filter cutoff
434 FixedArray<EGv2Unit*> filEGs;
435
436 // used for optimization - contains only the ones that are modulating resonance
437 FixedArray<EGv2Unit*> resEGs;
438
439 // used for optimization - contains only the ones that are modulating pan
440 FixedArray<EGv2Unit*> panEGs;
441
442 // used for optimization - contains only the ones that are modulating EQ
443 FixedArray<EGv2Unit*> eqEGs;
444
445
446 FixedArray<LFOv2Unit*> LFOs;
447
448 // used for optimization - contains only the ones that are modulating volume
449 FixedArray<LFOv2Unit*> volLFOs;
450
451 // used for optimization - contains only the ones that are modulating pitch
452 FixedArray<LFOv2Unit*> pitchLFOs;
453
454 // used for optimization - contains only the ones that are modulating filter cutoff
455 FixedArray<LFOv2Unit*> filLFOs;
456
457 // used for optimization - contains only the ones that are modulating resonance
458 FixedArray<LFOv2Unit*> resLFOs;
459
460 // used for optimization - contains only the ones that are modulating pan
461 FixedArray<LFOv2Unit*> panLFOs;
462
463 // used for optimization - contains only the ones that are modulating EQ
464 FixedArray<LFOv2Unit*> eqLFOs;
465
466
467 public:
468 Voice* const pVoice;
469
470 /**
471 * @param Voice The voice to which this rack belongs.
472 */
473 SfzSignalUnitRack(Voice* voice);
474 ~SfzSignalUnitRack();
475
476 virtual EndpointSignalUnit* GetEndpointUnit();
477
478 virtual void Trigger();
479 virtual void EnterFadeOutStage();
480 virtual void EnterFadeOutStage(int maxFadeOutSteps);
481
482 /** Called when the engine is set and the engine's pools are ready to use. */
483 void InitRTLists();
484
485 /** Invoked when the voice gone inactive. */
486 void Reset();
487
488 void CalculateFadeOutCoeff(float FadeOutTime, float SampleRate);
489
490 virtual void UpdateEqSettings(EqSupport* pEqSupport);
491
492 friend class EndpointUnit;
493 };
494 }} // namespace LinuxSampler::sfz
495
496 #endif /* __LS_SFZSIGNALUNITRACK_H__ */
497

  ViewVC Help
Powered by ViewVC