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();
    };
    
    
    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) { }
            virtual void Trigger();
    };
    
    class EGv2Unit: public EGUnit< ::LinuxSampler::sfz::EG> {
        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 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 true; }
            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;
            EGv1Unit      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	};
57
58
59	class CCUnit: public CCSignalUnit {
60	public:
61	Voice* pVoice;
62
63	CCUnit(SfzSignalUnitRack* rack, Listener* l = NULL);
64
65	virtual void Trigger();
66
67	void SetCCs(::sfz::Array<int>& pCC);
68	void SetCCs(ArrayList< ::sfz::CC>& cc);
69	};
70
71
72	template <class T>
73	class EGUnit: public SfzSignalUnit {
74	public:
75	::sfz::EG* pEGInfo;
76	T EG;
77
78	EGUnit(SfzSignalUnitRack* rack): SfzSignalUnit(rack), pEGInfo(NULL) { }
79	EGUnit(const EGUnit& Unit): SfzSignalUnit(Unit) { Copy(Unit); }
80	void operator=(const EGUnit& Unit) { Copy(Unit); }
81
82	void Copy(const EGUnit& Unit) {
83	pEGInfo = Unit.pEGInfo;
84
85	SfzSignalUnit::Copy(Unit);
86	}
87
88	virtual bool Active() { return EG.active(); }
89	virtual float GetLevel() { return DelayStage() ? 0 : EG.getLevel(); }
90
91	virtual void EnterReleaseStage() { EG.update(EG::event_release, GetSampleRate()); }
92	virtual void CancelRelease() { EG.update(EG::event_cancel_release, GetSampleRate()); }
93
94	virtual void Increment() {
95	if (DelayStage()) return;
96
97	SfzSignalUnit::Increment();
98	if (!EG.active()) return;
99
100	switch (EG.getSegmentType()) {
101	case EG::segment_lin:
102	EG.processLin();
103	break;
104	case EG::segment_exp:
105	EG.processExp();
106	break;
107	case EG::segment_end:
108	EG.getLevel();
109	break; // noop
110	case EG::segment_pow:
111	EG.processPow();
112	break;
113	}
114
115	if (EG.active()) {
116	EG.increment(1);
117	if (!EG.toStageEndLeft()) EG.update(EG::event_stage_end, GetSampleRate());
118	}
119	}
120	};
121
122	class EGv1Unit: public EGUnit<EGADSR> {
123	public:
124	int depth;
125	EGv1Unit(SfzSignalUnitRack* rack): EGUnit<EGADSR>(rack), depth(0) { }
126	virtual void Trigger();
127	};
128
129	class EGv2Unit: public EGUnit< ::LinuxSampler::sfz::EG> {
130	public:
131	EGv2Unit(SfzSignalUnitRack* rack): EGUnit< ::LinuxSampler::sfz::EG>(rack) { }
132	virtual void Trigger();
133	};
134
135	class PitchEGUnit: public EGv1Unit {
136	public:
137	PitchEGUnit(SfzSignalUnitRack* rack): EGv1Unit(rack) { }
138	virtual void Trigger();
139	};
140
141	class FilEGUnit: public EGv1Unit {
142	public:
143	FilEGUnit(SfzSignalUnitRack* rack): EGv1Unit(rack) { }
144	virtual void Trigger();
145	};
146
147	class AbstractLfo {
148	public:
149	virtual float Render() = 0;
150	virtual void Update(const uint16_t& ExtControlValue) = 0;
151	virtual void Trigger(float Frequency, start_level_t StartLevel, uint16_t InternalDepth, uint16_t ExtControlDepth, bool FlipPhase, unsigned int SampleRate) = 0;
152	virtual void SetPhase(float phase) = 0;
153	virtual void SetFrequency(float Frequency, unsigned int SampleRate) = 0;
154	};
155
156	template <class T>
157	class LfoBase: public AbstractLfo, public T {
158	public:
159	LfoBase(float Max): T(Max) { }
160	virtual float Render() { return T::render(); }
161
162	virtual void Update(const uint16_t& ExtControlValue) { T::update(ExtControlValue); }
163
164	virtual void Trigger (
165	float Frequency, start_level_t StartLevel, uint16_t InternalDepth,
166	uint16_t ExtControlDepth, bool FlipPhase, unsigned int SampleRate
167	) {
168	T::trigger(Frequency, StartLevel, InternalDepth, ExtControlDepth, FlipPhase, SampleRate);
169	}
170
171	virtual void SetPhase(float phase) { T::setPhase(phase); }
172
173	virtual void SetFrequency(float Frequency, unsigned int SampleRate) {
174	T::setFrequency(Frequency, SampleRate);
175	}
176	};
177
178	class LFOUnit;
179
180	class FadeEGUnit: public EGUnit<EGADSR> {
181	public:
182	FadeEGUnit(SfzSignalUnitRack* rack): EGUnit<EGADSR>(rack) { }
183	virtual void Trigger() { }
184	virtual void EnterReleaseStage() { }
185	virtual void CancelRelease() { }
186
187	friend class LFOUnit;
188	};
189
190	class LFOUnit: public SfzSignalUnit, public CCSignalUnit::Listener {
191	public:
192	::sfz::LFO* pLfoInfo;
193	AbstractLfo* pLFO;
194	FadeEGUnit suFadeEG;
195	CCUnit suFreqOnCC;
196
197	LFOUnit(SfzSignalUnitRack* rack);
198	LFOUnit(const LFOUnit& Unit);
199	void operator=(const LFOUnit& Unit) { Copy(Unit); }
200
201	void Copy(const LFOUnit& Unit) {
202	pLfoInfo = Unit.pLfoInfo;
203	suFadeEG = Unit.suFadeEG;
204
205	SfzSignalUnit::Copy(Unit);
206	}
207
208	virtual bool Active() { return true; }
209	virtual void Trigger();
210	virtual void Increment();
211	virtual float GetLevel() { return Level; }
212	virtual void ValueChanged(CCSignalUnit* pUnit);
213	};
214
215	class LFOv1Unit: public LFOUnit {
216	public:
217	::sfz::LFO lfoInfo;
218	LfoBase<LFOSigned> lfo;
219
220	LFOv1Unit(SfzSignalUnitRack* rack): LFOUnit(rack), lfo(1200.0f) {
221	pLfoInfo = &lfoInfo; pLFO = &lfo;
222	}
223
224	virtual void Trigger();
225	};
226
227	class LFOv2Unit: public LFOUnit {
228	protected:
229	FixedArray<AbstractLfo*> lfos;
230	LfoBase<LFOSigned> lfo0; // triangle
231	LfoBase<SineLFO<range_signed> > lfo1; // sine
232	LfoBase<PulseLFO<range_unsigned, 750> > lfo2; // pulse 75%
233	LfoBase<SquareLFO<range_signed> > lfo3; // square
234	LfoBase<PulseLFO<range_unsigned, 250> > lfo4; // pulse 25%
235	LfoBase<PulseLFO<range_unsigned, 125> > lfo5; // pulse 12,5%
236	LfoBase<SawLFO<range_unsigned, true> > lfo6; // saw up
237	LfoBase<SawLFO<range_unsigned, false> > lfo7; // saw down
238
239
240	public:
241	CCUnit suPitchOnCC;
242
243	LFOv2Unit(SfzSignalUnitRack* rack);
244
245	virtual void Trigger();
246	};
247
248	class AmpLFOUnit: public LFOv1Unit {
249	public:
250	AmpLFOUnit(SfzSignalUnitRack* rack): LFOv1Unit(rack) { }
251
252	virtual void Trigger();
253	};
254
255	class PitchLFOUnit: public LFOv1Unit {
256	public:
257	CCUnit suDepthCC;
258
259	PitchLFOUnit(SfzSignalUnitRack* rack): LFOv1Unit(rack), suDepthCC(rack) { }
260
261	virtual void Trigger();
262	};
263
264	class FilLFOUnit: public LFOv1Unit {
265	public:
266	FilLFOUnit(SfzSignalUnitRack* rack): LFOv1Unit(rack) { }
267
268	virtual void Trigger();
269	};
270
271
272
273	class EndpointUnit: public EndpointSignalUnit {
274	public:
275	Voice* pVoice;
276
277	EndpointUnit(SfzSignalUnitRack* rack);
278
279	virtual void Trigger();
280
281	/** The endpoint should be active until the volume EG is active. */
282	virtual bool Active();
283
284	virtual float GetVolume();
285	virtual float GetFilterCutoff();
286	virtual float GetPitch();
287	virtual float GetResonance();
288	virtual float GetPan();
289
290	SfzSignalUnitRack* const GetRack();
291
292	virtual float CalculateResonance(float res) {
293	return GetResonance() + res;
294	}
295	};
296
297
298	class SfzSignalUnitRack : public SignalUnitRack {
299	private:
300	EndpointUnit suEndpoint;
301	EGv1Unit suVolEG;
302	FilEGUnit suFilEG;
303	PitchEGUnit suPitchEG;
304
305	AmpLFOUnit suAmpLFO;
306	PitchLFOUnit suPitchLFO;
307	FilLFOUnit suFilLFO;
308
309	FixedArray<EGv2Unit*> EGs;
310
311	// used for optimization - contains only the ones that are modulating volume
312	FixedArray<EGv2Unit*> volEGs;
313
314	// used for optimization - contains only the ones that are modulating pitch
315	FixedArray<EGv2Unit*> pitchEGs;
316
317
318	FixedArray<LFOv2Unit*> LFOs;
319
320	// used for optimization - contains only the ones that are modulating pitch
321	FixedArray<LFOv2Unit*> pitchLFOs;
322
323	// used for optimization - contains only the ones that are modulating filter cutoff
324	FixedArray<LFOv2Unit*> filLFOs;
325
326	// used for optimization - contains only the ones that are modulating resonance
327	FixedArray<LFOv2Unit*> resLFOs;
328
329	// used for optimization - contains only the ones that are modulating pan
330	FixedArray<LFOv2Unit*> panLFOs;
331
332
333	public:
334	Voice* const pVoice;
335
336	/**
337	* @param Voice The voice to which this rack belongs.
338	*/
339	SfzSignalUnitRack(Voice* voice);
340	~SfzSignalUnitRack();
341
342	virtual EndpointSignalUnit* GetEndpointUnit();
343
344	virtual void Trigger();
345	virtual void EnterFadeOutStage();
346
347	friend class EndpointUnit;
348	};
349	}} // namespace LinuxSampler::sfz
350
351	#endif /* __LS_SFZSIGNALUNITRACK_H__ */
352