engines/sfz/SfzSignalUnitRack.h

/***************************************************************************
 *                                                                         *
 *   LinuxSampler - modular, streaming capable sampler                     *
 *                                                                         *
 *   Copyright (C) 2011 Grigor Iliev                                       *
 *                                                                         *
 *   This program is free software; you can redistribute it and/or modify  *
 *   it under the terms of the GNU General Public License as published by  *
 *   the Free Software Foundation; either version 2 of the License, or     *
 *   (at your option) any later version.                                   *
 *                                                                         *
 *   This program is distributed in the hope that it will be useful,       *
 *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
 *   GNU General Public License for more details.                          *
 *                                                                         *
 *   You should have received a copy of the GNU General Public License     *
 *   along with this program; if not, write to the Free Software           *
 *   Foundation, Inc., 59 Temple Place, Suite 330, Boston,                 *
 *   MA  02111-1307  USA                                                   *
 ***************************************************************************/

#ifndef __LS_SFZSIGNALUNITRACK_H__
#define __LS_SFZSIGNALUNITRACK_H__

#include "../common/SignalUnitRack.h"
#include "EG.h"
#include "EGADSR.h"
#include "../common/AbstractVoice.h"
#include "../common/PulseLFO.h"
#include "../common/SawLFO.h"
#include "../common/SineLFO.h"

namespace LinuxSampler { namespace sfz {
    const int MaxUnitCount = 1000;
    const int maxEgCount = 100; // Maximum number of v2 envelope generators
    const int maxLfoCount = 100; // Maximum number of v2 LFOs
    
    class Voice;
    class SfzSignalUnitRack;
    
    class SfzSignalUnit: public SignalUnit {
        public:
            Voice* pVoice;

            SfzSignalUnit(SfzSignalUnitRack* rack);
            SfzSignalUnit(const SfzSignalUnit& Unit): SignalUnit(Unit.pRack) { Copy(Unit); }
            
            void Copy(const SfzSignalUnit& Unit) {
                pVoice = Unit.pVoice;
                
                SignalUnit::Copy(Unit);
            }
            
            double GetSampleRate();
            float  GetInfluence(ArrayList< ::sfz::CC>& cc);
    };
    
    
    class CCUnit: public CCSignalUnit {
        public:
            Voice* pVoice;

            CCUnit(SfzSignalUnitRack* rack, Listener* l = NULL);
            
            virtual void Trigger();
            
            void SetCCs(::sfz::Array<int>& pCC);
            void SetCCs(ArrayList< ::sfz::CC>& cc);
    };
    
    
    template <class T>
    class EGUnit: public SfzSignalUnit {
        public:
            ::sfz::EG* pEGInfo;
            T EG;

            EGUnit(SfzSignalUnitRack* rack): SfzSignalUnit(rack), pEGInfo(NULL) { }
            EGUnit(const EGUnit& Unit): SfzSignalUnit(Unit) { Copy(Unit); }
            void operator=(const EGUnit& Unit) { Copy(Unit); }
            
            void Copy(const EGUnit& Unit) {
                pEGInfo = Unit.pEGInfo;
                
                SfzSignalUnit::Copy(Unit);
            }

            virtual bool  Active() { return EG.active(); }
            virtual float GetLevel() { return DelayStage() ? 0 : EG.getLevel(); }
            
            virtual void EnterReleaseStage() { EG.update(EG::event_release, GetSampleRate()); }
            virtual void CancelRelease() { EG.update(EG::event_cancel_release, GetSampleRate()); }
            
            virtual void Increment() {
                if (DelayStage()) return;

                SfzSignalUnit::Increment();
                if (!EG.active()) return;
        
                switch (EG.getSegmentType()) {
                    case EG::segment_lin:
                        EG.processLin();
                        break;
                    case EG::segment_exp:
                        EG.processExp();
                        break;
                    case EG::segment_end:
                        EG.getLevel();
                        break; // noop
                    case EG::segment_pow:
                        EG.processPow();
                        break;
                }
        
                if (EG.active()) {
                    EG.increment(1);
                    if (!EG.toStageEndLeft()) EG.update(EG::event_stage_end, GetSampleRate());
                }
            }
    };
    
    class EGv1Unit: public EGUnit<EGADSR> {
        public:
            int depth;
            EGv1Unit(SfzSignalUnitRack* rack): EGUnit<EGADSR>(rack), depth(0) { }
    };
    
    class EGv2Unit: public EGUnit< ::LinuxSampler::sfz::EG> {
        protected:
            ::sfz::EG egInfo;
        public:
            EGv2Unit(SfzSignalUnitRack* rack): EGUnit< ::LinuxSampler::sfz::EG>(rack) { }
            virtual void Trigger();
    };
    
    class PitchEGUnit: public EGv1Unit {
        public:
            PitchEGUnit(SfzSignalUnitRack* rack): EGv1Unit(rack) { }
            virtual void Trigger();
    };
    
    class FilEGUnit: public EGv1Unit {
        public:
            FilEGUnit(SfzSignalUnitRack* rack): EGv1Unit(rack) { }
            virtual void Trigger();
    };
    
    class AmpEGUnit: public EGv1Unit {
        public:
            AmpEGUnit(SfzSignalUnitRack* rack): EGv1Unit(rack) { }
            virtual void Trigger();
    };
    
    class AbstractLfo {
        public:
            virtual float Render() = 0;
            virtual void Update(const uint16_t& ExtControlValue) = 0;
            virtual void Trigger(float Frequency, start_level_t StartLevel, uint16_t InternalDepth, uint16_t ExtControlDepth, bool FlipPhase, unsigned int SampleRate) = 0;
            virtual void SetPhase(float phase) = 0;
            virtual void SetFrequency(float Frequency, unsigned int SampleRate) = 0;
    };
    
    template <class T>
    class LfoBase: public AbstractLfo, public T {
        public:
            LfoBase(float Max): T(Max) { }
            virtual float Render() { return T::render(); }
            
            virtual void Update(const uint16_t& ExtControlValue) { T::update(ExtControlValue); }
            
            virtual void Trigger (
                float Frequency, start_level_t StartLevel, uint16_t InternalDepth,
                uint16_t ExtControlDepth, bool FlipPhase, unsigned int SampleRate
            ) {
                T::trigger(Frequency, StartLevel, InternalDepth, ExtControlDepth, FlipPhase, SampleRate);
            }
            
            virtual void SetPhase(float phase) { T::setPhase(phase); }
            
            virtual void SetFrequency(float Frequency, unsigned int SampleRate) {
                T::setFrequency(Frequency, SampleRate);
            }
    };
    
    class LFOUnit;
    
    class FadeEGUnit: public EGUnit<EGADSR> {
        public:
            FadeEGUnit(SfzSignalUnitRack* rack): EGUnit<EGADSR>(rack) { }
            virtual void Trigger() { }
            virtual void EnterReleaseStage() { }
            virtual void CancelRelease() { }
            
            friend class LFOUnit;
    };
    
    class LFOUnit: public SfzSignalUnit, public CCSignalUnit::Listener {
        public:
            ::sfz::LFO*  pLfoInfo;
            AbstractLfo* pLFO;
            FadeEGUnit   suFadeEG;
            CCUnit       suFreqOnCC;
            
            LFOUnit(SfzSignalUnitRack* rack);
            LFOUnit(const LFOUnit& Unit);
            void operator=(const LFOUnit& Unit) { Copy(Unit); }
            
            void Copy(const LFOUnit& Unit) {
                pLfoInfo   = Unit.pLfoInfo;
                suFadeEG   = Unit.suFadeEG;
                
                SfzSignalUnit::Copy(Unit);
            }
            
            virtual bool  Active() { return pLfoInfo->freq > 0; }
            virtual void  Trigger();
            virtual void  Increment();
            virtual float GetLevel() { return Level; }
            virtual void  ValueChanged(CCSignalUnit* pUnit);
    };
    
    class LFOv1Unit: public LFOUnit {
        public:
            ::sfz::LFO lfoInfo;
            LfoBase<LFOSigned> lfo;
            
            LFOv1Unit(SfzSignalUnitRack* rack): LFOUnit(rack), lfo(1200.0f) {
                pLfoInfo = &lfoInfo; pLFO = &lfo;
            }
            
            virtual void Trigger();
    };
    
    class LFOv2Unit: public LFOUnit {
        protected:
            FixedArray<AbstractLfo*> lfos;
            LfoBase<LFOSigned>                       lfo0; // triangle
            LfoBase<SineLFO<range_signed> >          lfo1; // sine
            LfoBase<PulseLFO<range_unsigned, 750> >  lfo2; // pulse 75%
            LfoBase<SquareLFO<range_signed> >        lfo3; // square
            LfoBase<PulseLFO<range_unsigned, 250> >  lfo4; // pulse 25%
            LfoBase<PulseLFO<range_unsigned, 125> >  lfo5; // pulse 12,5%
            LfoBase<SawLFO<range_unsigned, true> >   lfo6; // saw up
            LfoBase<SawLFO<range_unsigned, false> >  lfo7; // saw down
            
            
        public:
            CCUnit suPitchOnCC;
            
            LFOv2Unit(SfzSignalUnitRack* rack);
            
            virtual void Trigger();
    };
    
    class AmpLFOUnit: public LFOv1Unit {
        public:
            AmpLFOUnit(SfzSignalUnitRack* rack): LFOv1Unit(rack) { }
            
            virtual void Trigger();
    };
    
    class PitchLFOUnit: public LFOv1Unit {
        public:
            CCUnit suDepthCC;
            
            PitchLFOUnit(SfzSignalUnitRack* rack): LFOv1Unit(rack), suDepthCC(rack) { }
            
            virtual void Trigger();
    };
    
    class FilLFOUnit: public LFOv1Unit {
        public:
            FilLFOUnit(SfzSignalUnitRack* rack): LFOv1Unit(rack) { }
            
            virtual void Trigger();
    };
    
    
    
    class EndpointUnit: public EndpointSignalUnit {
        public:
            Voice* pVoice;

            EndpointUnit(SfzSignalUnitRack* rack);

            virtual void Trigger();

            /** The endpoint should be active until the volume EG is active. */
            virtual bool Active();
            
            virtual float GetVolume();
            virtual float GetFilterCutoff();
            virtual float GetPitch();
            virtual float GetResonance();
            virtual float GetPan();
            
            SfzSignalUnitRack* const GetRack();
            
            virtual float CalculateResonance(float res) {
                return GetResonance() + res;
            }
    };
    
    
    class SfzSignalUnitRack : public SignalUnitRack {
        private:
            EndpointUnit  suEndpoint;
            AmpEGUnit     suVolEG;
            FilEGUnit     suFilEG;
            PitchEGUnit   suPitchEG;
            
            AmpLFOUnit   suAmpLFO;
            PitchLFOUnit suPitchLFO;
            FilLFOUnit   suFilLFO;
            
            FixedArray<EGv2Unit*> EGs;
            
            // used for optimization - contains only the ones that are modulating volume
            FixedArray<EGv2Unit*> volEGs;
            
            // used for optimization - contains only the ones that are modulating pitch
            FixedArray<EGv2Unit*> pitchEGs;
            
            
            FixedArray<LFOv2Unit*> LFOs;
            
            // used for optimization - contains only the ones that are modulating pitch
            FixedArray<LFOv2Unit*> pitchLFOs;
            
            // used for optimization - contains only the ones that are modulating filter cutoff
            FixedArray<LFOv2Unit*> filLFOs;
            
            // used for optimization - contains only the ones that are modulating resonance
            FixedArray<LFOv2Unit*> resLFOs;
            
            // used for optimization - contains only the ones that are modulating pan
            FixedArray<LFOv2Unit*> panLFOs;
            

        public:
            Voice* const pVoice;
        
            /**
             * @param Voice The voice to which this rack belongs.
             */
            SfzSignalUnitRack(Voice* voice);
            ~SfzSignalUnitRack();

            virtual EndpointSignalUnit* GetEndpointUnit();
            
            virtual void Trigger();
            virtual void EnterFadeOutStage();
            
            friend class EndpointUnit;
    };
}} // namespace LinuxSampler::sfz

#endif  /* __LS_SFZSIGNALUNITRACK_H__ */

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 = 1000;
36	const int maxEgCount = 100; // Maximum number of v2 envelope generators
37	const int maxLfoCount = 100; // 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(ArrayList< ::sfz::CC>& cc);
70	};
71
72
73	template <class T>
74	class EGUnit: public SfzSignalUnit {
75	public:
76	::sfz::EG* pEGInfo;
77	T EG;
78
79	EGUnit(SfzSignalUnitRack* rack): SfzSignalUnit(rack), pEGInfo(NULL) { }
80	EGUnit(const EGUnit& Unit): SfzSignalUnit(Unit) { Copy(Unit); }
81	void operator=(const EGUnit& Unit) { Copy(Unit); }
82
83	void Copy(const EGUnit& Unit) {
84	pEGInfo = Unit.pEGInfo;
85
86	SfzSignalUnit::Copy(Unit);
87	}
88
89	virtual bool Active() { return EG.active(); }
90	virtual float GetLevel() { return DelayStage() ? 0 : EG.getLevel(); }
91
92	virtual void EnterReleaseStage() { EG.update(EG::event_release, GetSampleRate()); }
93	virtual void CancelRelease() { EG.update(EG::event_cancel_release, GetSampleRate()); }
94
95	virtual void Increment() {
96	if (DelayStage()) return;
97
98	SfzSignalUnit::Increment();
99	if (!EG.active()) return;
100
101	switch (EG.getSegmentType()) {
102	case EG::segment_lin:
103	EG.processLin();
104	break;
105	case EG::segment_exp:
106	EG.processExp();
107	break;
108	case EG::segment_end:
109	EG.getLevel();
110	break; // noop
111	case EG::segment_pow:
112	EG.processPow();
113	break;
114	}
115
116	if (EG.active()) {
117	EG.increment(1);
118	if (!EG.toStageEndLeft()) EG.update(EG::event_stage_end, GetSampleRate());
119	}
120	}
121	};
122
123	class EGv1Unit: public EGUnit<EGADSR> {
124	public:
125	int depth;
126	EGv1Unit(SfzSignalUnitRack* rack): EGUnit<EGADSR>(rack), depth(0) { }
127	};
128
129	class EGv2Unit: public EGUnit< ::LinuxSampler::sfz::EG> {
130	protected:
131	::sfz::EG egInfo;
132	public:
133	EGv2Unit(SfzSignalUnitRack* rack): EGUnit< ::LinuxSampler::sfz::EG>(rack) { }
134	virtual void Trigger();
135	};
136
137	class PitchEGUnit: public EGv1Unit {
138	public:
139	PitchEGUnit(SfzSignalUnitRack* rack): EGv1Unit(rack) { }
140	virtual void Trigger();
141	};
142
143	class FilEGUnit: public EGv1Unit {
144	public:
145	FilEGUnit(SfzSignalUnitRack* rack): EGv1Unit(rack) { }
146	virtual void Trigger();
147	};
148
149	class AmpEGUnit: public EGv1Unit {
150	public:
151	AmpEGUnit(SfzSignalUnitRack* rack): EGv1Unit(rack) { }
152	virtual void Trigger();
153	};
154
155	class AbstractLfo {
156	public:
157	virtual float Render() = 0;
158	virtual void Update(const uint16_t& ExtControlValue) = 0;
159	virtual void Trigger(float Frequency, start_level_t StartLevel, uint16_t InternalDepth, uint16_t ExtControlDepth, bool FlipPhase, unsigned int SampleRate) = 0;
160	virtual void SetPhase(float phase) = 0;
161	virtual void SetFrequency(float Frequency, unsigned int SampleRate) = 0;
162	};
163
164	template <class T>
165	class LfoBase: public AbstractLfo, public T {
166	public:
167	LfoBase(float Max): T(Max) { }
168	virtual float Render() { return T::render(); }
169
170	virtual void Update(const uint16_t& ExtControlValue) { T::update(ExtControlValue); }
171
172	virtual void Trigger (
173	float Frequency, start_level_t StartLevel, uint16_t InternalDepth,
174	uint16_t ExtControlDepth, bool FlipPhase, unsigned int SampleRate
175	) {
176	T::trigger(Frequency, StartLevel, InternalDepth, ExtControlDepth, FlipPhase, SampleRate);
177	}
178
179	virtual void SetPhase(float phase) { T::setPhase(phase); }
180
181	virtual void SetFrequency(float Frequency, unsigned int SampleRate) {
182	T::setFrequency(Frequency, SampleRate);
183	}
184	};
185
186	class LFOUnit;
187
188	class FadeEGUnit: public EGUnit<EGADSR> {
189	public:
190	FadeEGUnit(SfzSignalUnitRack* rack): EGUnit<EGADSR>(rack) { }
191	virtual void Trigger() { }
192	virtual void EnterReleaseStage() { }
193	virtual void CancelRelease() { }
194
195	friend class LFOUnit;
196	};
197
198	class LFOUnit: public SfzSignalUnit, public CCSignalUnit::Listener {
199	public:
200	::sfz::LFO* pLfoInfo;
201	AbstractLfo* pLFO;
202	FadeEGUnit suFadeEG;
203	CCUnit suFreqOnCC;
204
205	LFOUnit(SfzSignalUnitRack* rack);
206	LFOUnit(const LFOUnit& Unit);
207	void operator=(const LFOUnit& Unit) { Copy(Unit); }
208
209	void Copy(const LFOUnit& Unit) {
210	pLfoInfo = Unit.pLfoInfo;
211	suFadeEG = Unit.suFadeEG;
212
213	SfzSignalUnit::Copy(Unit);
214	}
215
216	virtual bool Active() { return pLfoInfo->freq > 0; }
217	virtual void Trigger();
218	virtual void Increment();
219	virtual float GetLevel() { return Level; }
220	virtual void ValueChanged(CCSignalUnit* pUnit);
221	};
222
223	class LFOv1Unit: public LFOUnit {
224	public:
225	::sfz::LFO lfoInfo;
226	LfoBase<LFOSigned> lfo;
227
228	LFOv1Unit(SfzSignalUnitRack* rack): LFOUnit(rack), lfo(1200.0f) {
229	pLfoInfo = &lfoInfo; pLFO = &lfo;
230	}
231
232	virtual void Trigger();
233	};
234
235	class LFOv2Unit: public LFOUnit {
236	protected:
237	FixedArray<AbstractLfo*> lfos;
238	LfoBase<LFOSigned> lfo0; // triangle
239	LfoBase<SineLFO<range_signed> > lfo1; // sine
240	LfoBase<PulseLFO<range_unsigned, 750> > lfo2; // pulse 75%
241	LfoBase<SquareLFO<range_signed> > lfo3; // square
242	LfoBase<PulseLFO<range_unsigned, 250> > lfo4; // pulse 25%
243	LfoBase<PulseLFO<range_unsigned, 125> > lfo5; // pulse 12,5%
244	LfoBase<SawLFO<range_unsigned, true> > lfo6; // saw up
245	LfoBase<SawLFO<range_unsigned, false> > lfo7; // saw down
246
247
248	public:
249	CCUnit suPitchOnCC;
250
251	LFOv2Unit(SfzSignalUnitRack* rack);
252
253	virtual void Trigger();
254	};
255
256	class AmpLFOUnit: public LFOv1Unit {
257	public:
258	AmpLFOUnit(SfzSignalUnitRack* rack): LFOv1Unit(rack) { }
259
260	virtual void Trigger();
261	};
262
263	class PitchLFOUnit: public LFOv1Unit {
264	public:
265	CCUnit suDepthCC;
266
267	PitchLFOUnit(SfzSignalUnitRack* rack): LFOv1Unit(rack), suDepthCC(rack) { }
268
269	virtual void Trigger();
270	};
271
272	class FilLFOUnit: public LFOv1Unit {
273	public:
274	FilLFOUnit(SfzSignalUnitRack* rack): LFOv1Unit(rack) { }
275
276	virtual void Trigger();
277	};
278
279
280
281	class EndpointUnit: public EndpointSignalUnit {
282	public:
283	Voice* pVoice;
284
285	EndpointUnit(SfzSignalUnitRack* rack);
286
287	virtual void Trigger();
288
289	/** The endpoint should be active until the volume EG is active. */
290	virtual bool Active();
291
292	virtual float GetVolume();
293	virtual float GetFilterCutoff();
294	virtual float GetPitch();
295	virtual float GetResonance();
296	virtual float GetPan();
297
298	SfzSignalUnitRack* const GetRack();
299
300	virtual float CalculateResonance(float res) {
301	return GetResonance() + res;
302	}
303	};
304
305
306	class SfzSignalUnitRack : public SignalUnitRack {
307	private:
308	EndpointUnit suEndpoint;
309	AmpEGUnit suVolEG;
310	FilEGUnit suFilEG;
311	PitchEGUnit suPitchEG;
312
313	AmpLFOUnit suAmpLFO;
314	PitchLFOUnit suPitchLFO;
315	FilLFOUnit suFilLFO;
316
317	FixedArray<EGv2Unit*> EGs;
318
319	// used for optimization - contains only the ones that are modulating volume
320	FixedArray<EGv2Unit*> volEGs;
321
322	// used for optimization - contains only the ones that are modulating pitch
323	FixedArray<EGv2Unit*> pitchEGs;
324
325
326	FixedArray<LFOv2Unit*> LFOs;
327
328	// used for optimization - contains only the ones that are modulating pitch
329	FixedArray<LFOv2Unit*> pitchLFOs;
330
331	// used for optimization - contains only the ones that are modulating filter cutoff
332	FixedArray<LFOv2Unit*> filLFOs;
333
334	// used for optimization - contains only the ones that are modulating resonance
335	FixedArray<LFOv2Unit*> resLFOs;
336
337	// used for optimization - contains only the ones that are modulating pan
338	FixedArray<LFOv2Unit*> panLFOs;
339
340
341	public:
342	Voice* const pVoice;
343
344	/**
345	* @param Voice The voice to which this rack belongs.
346	*/
347	SfzSignalUnitRack(Voice* voice);
348	~SfzSignalUnitRack();
349
350	virtual EndpointSignalUnit* GetEndpointUnit();
351
352	virtual void Trigger();
353	virtual void EnterFadeOutStage();
354
355	friend class EndpointUnit;
356	};
357	}} // namespace LinuxSampler::sfz
358
359	#endif /* __LS_SFZSIGNALUNITRACK_H__ */
360