/[svn]/linuxsampler/trunk/src/engines/sfz/SfzSignalUnitRack.h
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Contents of /linuxsampler/trunk/src/engines/sfz/SfzSignalUnitRack.h

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Revision 2296 - (show annotations) (download) (as text)
Thu Dec 8 20:03:47 2011 UTC (9 years, 7 months ago) by iliev
File MIME type: text/x-c++hdr
File size: 16889 byte(s)
* fixed crash when trying to create an effect instance with controls
  which min and/or max values depend on the sample rate
* experimental support for per voice equalization (work in progress)
* sfz engine: implemented opcodes eq1_freq, eq2_freq, eq3_freq,
  eq1_freqccN, eq2_freqccN, eq3_freqccN, eq1_bw, eq2_bw, eq3_bw,
  eq1_bwccN, eq2_bwccN, eq3_bwccN, eq1_gain, eq2_gain, eq3_gain,
  eq1_gainccN, eq2_gainccN, eq3_gainccN

1 /***************************************************************************
2 * *
3 * LinuxSampler - modular, streaming capable sampler *
4 * *
5 * Copyright (C) 2011 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 XFInCCUnit: public CCUnit {
108 public:
109 XFInCCUnit(SfzSignalUnitRack* rack, Listener* l = NULL): CCUnit(rack, l) { }
110
111 virtual bool Active() { return !pCtrls->isEmpty(); }
112 virtual void Calculate();
113 virtual void SetCrossFadeCCs(::sfz::Array<int>& loCCs, ::sfz::Array<int>& hiCCs);
114 };
115
116
117 class XFOutCCUnit: public XFInCCUnit {
118 public:
119 XFOutCCUnit(SfzSignalUnitRack* rack, Listener* l = NULL): XFInCCUnit(rack, l) { }
120
121 virtual void Calculate();
122 };
123
124
125 template <class T>
126 class EGUnit: public SfzSignalUnit {
127 public:
128 ::sfz::EG* pEGInfo;
129 T EG;
130
131 EGUnit(SfzSignalUnitRack* rack): SfzSignalUnit(rack), pEGInfo(NULL) { }
132 EGUnit(const EGUnit& Unit): SfzSignalUnit(Unit) { Copy(Unit); }
133 void operator=(const EGUnit& Unit) { Copy(Unit); }
134
135 void Copy(const EGUnit& Unit) {
136 pEGInfo = Unit.pEGInfo;
137
138 SfzSignalUnit::Copy(Unit);
139 }
140
141 virtual bool Active() { return EG.active(); }
142 virtual float GetLevel() { return DelayStage() ? 0 : EG.getLevel(); }
143
144 virtual void EnterReleaseStage() { EG.update(EG::event_release, GetSampleRate()); }
145 virtual void CancelRelease() { EG.update(EG::event_cancel_release, GetSampleRate()); }
146
147 virtual void Increment() {
148 if (DelayStage()) return;
149
150 SfzSignalUnit::Increment();
151 if (!EG.active()) return;
152
153 switch (EG.getSegmentType()) {
154 case EG::segment_lin:
155 EG.processLin();
156 break;
157 case EG::segment_exp:
158 EG.processExp();
159 break;
160 case EG::segment_end:
161 EG.getLevel();
162 break; // noop
163 case EG::segment_pow:
164 EG.processPow();
165 break;
166 }
167
168 if (EG.active()) {
169 EG.increment(1);
170 if (!EG.toStageEndLeft()) EG.update(EG::event_stage_end, GetSampleRate());
171 }
172 }
173 };
174
175 class EGv1Unit: public EGUnit<EGADSR> {
176 public:
177 int depth;
178 EGv1Unit(SfzSignalUnitRack* rack): EGUnit<EGADSR>(rack), depth(0) { }
179 };
180
181 class EGv2Unit: public EGUnit< ::LinuxSampler::sfz::EG> {
182 protected:
183 ::sfz::EG egInfo;
184 public:
185 CCUnit suAmpOnCC;
186 CCUnit suVolOnCC;
187 CCUnit suPitchOnCC;
188 CCUnit suCutoffOnCC;
189 CCUnit suResOnCC;
190 CurveCCUnit suPanOnCC;
191
192 EGv2Unit(SfzSignalUnitRack* rack);
193 virtual void Trigger();
194 };
195
196 class PitchEGUnit: public EGv1Unit {
197 public:
198 PitchEGUnit(SfzSignalUnitRack* rack): EGv1Unit(rack) { }
199 virtual void Trigger();
200 };
201
202 class FilEGUnit: public EGv1Unit {
203 public:
204 FilEGUnit(SfzSignalUnitRack* rack): EGv1Unit(rack) { }
205 virtual void Trigger();
206 };
207
208 class AmpEGUnit: public EGv1Unit {
209 public:
210 AmpEGUnit(SfzSignalUnitRack* rack): EGv1Unit(rack) { }
211 virtual void Trigger();
212 };
213
214 class AbstractLfo {
215 public:
216 virtual float Render() = 0;
217 virtual void Update(const uint16_t& ExtControlValue) = 0;
218 virtual void Trigger(float Frequency, start_level_t StartLevel, uint16_t InternalDepth, uint16_t ExtControlDepth, bool FlipPhase, unsigned int SampleRate) = 0;
219 virtual void SetPhase(float phase) = 0;
220 virtual void SetFrequency(float Frequency, unsigned int SampleRate) = 0;
221 };
222
223 template <class T>
224 class LfoBase: public AbstractLfo, public T {
225 public:
226 LfoBase(float Max): T(Max) { }
227 virtual float Render() { return T::render(); }
228
229 virtual void Update(const uint16_t& ExtControlValue) { T::update(ExtControlValue); }
230
231 virtual void Trigger (
232 float Frequency, start_level_t StartLevel, uint16_t InternalDepth,
233 uint16_t ExtControlDepth, bool FlipPhase, unsigned int SampleRate
234 ) {
235 T::trigger(Frequency, StartLevel, InternalDepth, ExtControlDepth, FlipPhase, SampleRate);
236 }
237
238 virtual void SetPhase(float phase) { T::setPhase(phase); }
239
240 virtual void SetFrequency(float Frequency, unsigned int SampleRate) {
241 T::setFrequency(Frequency, SampleRate);
242 }
243 };
244
245 class LFOUnit;
246
247 class FadeEGUnit: public EGUnit<EGADSR> {
248 public:
249 FadeEGUnit(SfzSignalUnitRack* rack): EGUnit<EGADSR>(rack) { }
250 virtual void Trigger() { }
251 virtual void EnterReleaseStage() { }
252 virtual void CancelRelease() { }
253
254 friend class LFOUnit;
255 };
256
257 class LFOUnit: public SfzSignalUnit, public CCSignalUnit::Listener {
258 public:
259 ::sfz::LFO* pLfoInfo;
260 AbstractLfo* pLFO;
261 FadeEGUnit suFadeEG;
262 SmoothCCUnit suDepthOnCC;
263 SmoothCCUnit suFreqOnCC;
264
265 LFOUnit(SfzSignalUnitRack* rack);
266 LFOUnit(const LFOUnit& Unit);
267 void operator=(const LFOUnit& Unit) { Copy(Unit); }
268
269 void Copy(const LFOUnit& Unit) {
270 pLfoInfo = Unit.pLfoInfo;
271 suFadeEG = Unit.suFadeEG;
272
273 SfzSignalUnit::Copy(Unit);
274 }
275
276 virtual void Trigger();
277 virtual void Increment();
278 virtual float GetLevel() { return Level; }
279
280 // CCSignalUnit::Listener interface implementation
281 virtual void ValueChanged(CCSignalUnit* pUnit);
282 };
283
284 class LFOv1Unit: public LFOUnit {
285 public:
286 ::sfz::LFO lfoInfo;
287 LfoBase<LFOSigned> lfo;
288
289 LFOv1Unit(SfzSignalUnitRack* rack): LFOUnit(rack), lfo(1200.0f) {
290 pLfoInfo = &lfoInfo; pLFO = &lfo;
291 }
292
293 virtual void Trigger();
294 };
295
296 class LFOv2Unit: public LFOUnit {
297 protected:
298 FixedArray<AbstractLfo*> lfos;
299 LfoBase<LFOSigned> lfo0; // triangle
300 LfoBase<SineLFO<range_signed> > lfo1; // sine
301 LfoBase<PulseLFO<range_unsigned, 750> > lfo2; // pulse 75%
302 LfoBase<SquareLFO<range_signed> > lfo3; // square
303 LfoBase<PulseLFO<range_unsigned, 250> > lfo4; // pulse 25%
304 LfoBase<PulseLFO<range_unsigned, 125> > lfo5; // pulse 12,5%
305 LfoBase<SawLFO<range_unsigned, true> > lfo6; // saw up
306 LfoBase<SawLFO<range_unsigned, false> > lfo7; // saw down
307
308
309 public:
310 SmoothCCUnit suVolOnCC;
311 SmoothCCUnit suPitchOnCC;
312 SmoothCCUnit suPanOnCC;
313 SmoothCCUnit suCutoffOnCC;
314 SmoothCCUnit suResOnCC;
315
316 LFOv2Unit(SfzSignalUnitRack* rack);
317
318 virtual void Trigger();
319 virtual bool Active() { return true; }
320 };
321
322 class AmpLFOUnit: public LFOv1Unit {
323 public:
324 AmpLFOUnit(SfzSignalUnitRack* rack): LFOv1Unit(rack) { }
325
326 virtual void Trigger();
327 };
328
329 class PitchLFOUnit: public LFOv1Unit {
330 public:
331 PitchLFOUnit(SfzSignalUnitRack* rack): LFOv1Unit(rack) { }
332
333 virtual void Trigger();
334 };
335
336 class FilLFOUnit: public LFOv1Unit {
337 public:
338 FilLFOUnit(SfzSignalUnitRack* rack): LFOv1Unit(rack) { }
339
340 virtual void Trigger();
341 };
342
343
344 class EndpointUnit: public EndpointSignalUnit {
345 private:
346 float xfCoeff; // crossfade coefficient
347 float pitchVeltrackRatio;
348
349 public:
350 Voice* pVoice;
351 XFInCCUnit suXFInCC;
352 XFOutCCUnit suXFOutCC;
353 SmoothCCUnit suPanOnCC;
354
355 EndpointUnit(SfzSignalUnitRack* rack);
356
357 virtual void Trigger();
358
359 /** The endpoint should be active until the volume EG is active. */
360 virtual bool Active();
361
362 virtual float GetVolume();
363 virtual float GetFilterCutoff();
364 virtual float GetPitch();
365 virtual float GetResonance();
366 virtual float GetPan();
367
368 SfzSignalUnitRack* const GetRack();
369
370 virtual float CalculateResonance(float res) {
371 return GetResonance() + res;
372 }
373
374 virtual float CalculateFilterCutoff(float cutoff);
375 };
376
377
378 class SfzSignalUnitRack : public SignalUnitRack {
379 private:
380 EndpointUnit suEndpoint;
381 AmpEGUnit suVolEG;
382 FilEGUnit suFilEG;
383 PitchEGUnit suPitchEG;
384
385 AmpLFOUnit suAmpLFO;
386 PitchLFOUnit suPitchLFO;
387 FilLFOUnit suFilLFO;
388
389 CCUnit suEq1GainOnCC;
390 CCUnit suEq2GainOnCC;
391 CCUnit suEq3GainOnCC;
392
393 CCUnit suEq1FreqOnCC;
394 CCUnit suEq2FreqOnCC;
395 CCUnit suEq3FreqOnCC;
396
397 CCUnit suEq1BwOnCC;
398 CCUnit suEq2BwOnCC;
399 CCUnit suEq3BwOnCC;
400
401 // SFZ v2
402
403 SmoothCCUnit suVolOnCC;
404 SmoothCCUnit suPitchOnCC;
405 SmoothCCUnit suCutoffOnCC;
406 SmoothCCUnit suResOnCC;
407
408 FixedArray<EGv2Unit*> EGs;
409
410 // used for optimization - contains only the ones that are modulating volume
411 FixedArray<EGv2Unit*> volEGs;
412
413 // used for optimization - contains only the ones that are modulating pitch
414 FixedArray<EGv2Unit*> pitchEGs;
415
416 // used for optimization - contains only the ones that are modulating filter cutoff
417 FixedArray<EGv2Unit*> filEGs;
418
419 // used for optimization - contains only the ones that are modulating resonance
420 FixedArray<EGv2Unit*> resEGs;
421
422 // used for optimization - contains only the ones that are modulating pitch
423 FixedArray<EGv2Unit*> panEGs;
424
425
426 FixedArray<LFOv2Unit*> LFOs;
427
428 // used for optimization - contains only the ones that are modulating volume
429 FixedArray<LFOv2Unit*> volLFOs;
430
431 // used for optimization - contains only the ones that are modulating pitch
432 FixedArray<LFOv2Unit*> pitchLFOs;
433
434 // used for optimization - contains only the ones that are modulating filter cutoff
435 FixedArray<LFOv2Unit*> filLFOs;
436
437 // used for optimization - contains only the ones that are modulating resonance
438 FixedArray<LFOv2Unit*> resLFOs;
439
440 // used for optimization - contains only the ones that are modulating pan
441 FixedArray<LFOv2Unit*> panLFOs;
442
443
444 public:
445 Voice* const pVoice;
446
447 /**
448 * @param Voice The voice to which this rack belongs.
449 */
450 SfzSignalUnitRack(Voice* voice);
451 ~SfzSignalUnitRack();
452
453 virtual EndpointSignalUnit* GetEndpointUnit();
454
455 virtual void Trigger();
456 virtual void EnterFadeOutStage();
457
458 /** Called when the engine is set and the engine's pools are ready to use. */
459 void InitRTLists();
460
461 /** Invoked when the voice gone inactive. */
462 void Reset();
463
464 virtual void UpdateEqSettings(EqSupport* pEqSupport);
465
466 friend class EndpointUnit;
467 };
468 }} // namespace LinuxSampler::sfz
469
470 #endif /* __LS_SFZSIGNALUNITRACK_H__ */
471

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