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