engines/sfz/SfzSignalUnitRack.h

/***************************************************************************
 *                                                                         *
 *   LinuxSampler - modular, streaming capable sampler                     *
 *                                                                         *
 *   Copyright (C) 2011 - 2012 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 = 200;
    const int maxEgCount = 30; // Maximum number of v2 envelope generators
    const int maxLfoCount = 30; // 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(::sfz::Array<float>& pCC);
            void SetCCs(ArrayList< ::sfz::CC>& cc);
            
            virtual void AddSmoothCC(uint8_t Controller, float Influence, short int Curve, float Smooth, float Step);
            
            int GetCurveCount();
            ::sfz::Curve* GetCurve(int idx);
            
            double GetSampleRate();
    };
    
    class CurveCCUnit: public CCUnit {
        public:
            CurveCCUnit(SfzSignalUnitRack* rack, Listener* l = NULL): CCUnit(rack, l) { }
            
            virtual float Normalize(uint8_t val, short int curve = -1) {
                if (curve == -1) return val / 127.0f;
                return GetCurve(curve)->v[val];
            }
    };
    
    
    
    class SmoothCCUnit: public CurveCCUnit {
        protected:
            RTList<Smoother>* pSmoothers;
        public:
            SmoothCCUnit(SfzSignalUnitRack* rack, Listener* l = NULL): CurveCCUnit(rack, l), pSmoothers(NULL) { }
            virtual ~SmoothCCUnit();
            
            virtual void AddSmoothCC(uint8_t Controller, float Influence, short int Curve, float Smooth, float Step);
            virtual void RemoveAllCCs() { CurveCCUnit::RemoveAllCCs(); pSmoothers->clear(); }
            virtual void InitCCList(Pool<CC>* pCCPool, Pool<Smoother>* pSmootherPool);
            
            void InitSmoothers(Pool<Smoother>* pSmootherPool);
    };
    
    
    class EqUnitSupport {
        public:
            EqUnitSupport(SfzSignalUnitRack* pRack, Voice* pVoice = NULL);
            
            SmoothCCUnit suEq1GainOnCC;
            SmoothCCUnit suEq2GainOnCC;
            SmoothCCUnit suEq3GainOnCC;
            
            SmoothCCUnit suEq1FreqOnCC;
            SmoothCCUnit suEq2FreqOnCC;
            SmoothCCUnit suEq3FreqOnCC;
            
            SmoothCCUnit suEq1BwOnCC;
            SmoothCCUnit suEq2BwOnCC;
            SmoothCCUnit suEq3BwOnCC;
            
            void SetVoice(Voice* pVoice);
            void ImportUnits(SfzSignalUnitRack* pRack);
            void ResetUnits();
            void InitCCLists(Pool<CCSignalUnit::CC>* pCCPool, Pool<Smoother>* pSmootherPool);
    };
    
    
    class XFInCCUnit: public CCUnit {
        public:
            XFInCCUnit(SfzSignalUnitRack* rack, Listener* l = NULL): CCUnit(rack, l) { }
            
            virtual bool Active() { return !pCtrls->isEmpty(); }
            virtual void Calculate();
            virtual void SetCrossFadeCCs(::sfz::Array<int>& loCCs, ::sfz::Array<int>& hiCCs);
    };
    
    
    class XFOutCCUnit: public XFInCCUnit {
        public:
            XFOutCCUnit(SfzSignalUnitRack* rack, Listener* l = NULL): XFInCCUnit(rack, l) { }
            
            virtual void Calculate();
    };
    
    
    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>, public EqUnitSupport {
        protected:
            ::sfz::EG egInfo;
        public:
            CCUnit suAmpOnCC;
            CCUnit suVolOnCC;
            CCUnit suPitchOnCC;
            CCUnit suCutoffOnCC;
            CCUnit suResOnCC;
            CurveCCUnit suPanOnCC;
            
            EGv2Unit(SfzSignalUnitRack* 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;
            SmoothCCUnit suDepthOnCC;
            SmoothCCUnit 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 void  Trigger();
            virtual void  Increment();
            virtual float GetLevel() { return Level; }
            
            // CCSignalUnit::Listener interface implementation
            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, public EqUnitSupport {
        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:
            SmoothCCUnit suVolOnCC;
            SmoothCCUnit suPitchOnCC;
            SmoothCCUnit suPanOnCC;
            SmoothCCUnit suCutoffOnCC;
            SmoothCCUnit suResOnCC;
            
            LFOv2Unit(SfzSignalUnitRack* rack);
            
            virtual void Trigger();
            virtual bool  Active() { return true; }
    };
    
    class AmpLFOUnit: public LFOv1Unit {
        public:
            AmpLFOUnit(SfzSignalUnitRack* rack): LFOv1Unit(rack) { }
            
            virtual void Trigger();
    };
    
    class PitchLFOUnit: public LFOv1Unit {
        public:
            PitchLFOUnit(SfzSignalUnitRack* rack): LFOv1Unit(rack) { }
            
            virtual void Trigger();
    };
    
    class FilLFOUnit: public LFOv1Unit {
        public:
            FilLFOUnit(SfzSignalUnitRack* rack): LFOv1Unit(rack) { }
            
            virtual void Trigger();
    };
    
    
    class EndpointUnit: public EndpointSignalUnit {
        private:
            float xfCoeff; // crossfade coefficient
            float pitchVeltrackRatio;
            
        public:
            Voice* pVoice;
            XFInCCUnit   suXFInCC;
            XFOutCCUnit  suXFOutCC;
            SmoothCCUnit suPanOnCC;

            EndpointUnit(SfzSignalUnitRack* rack);

            virtual void Trigger();

            /**
             * The endpoint should be active until the volume EG is active.
             * This method determines the end of the voice playback.
             */
            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;
            }
            
            virtual float CalculateFilterCutoff(float cutoff);
            
            float  GetInfluence(::sfz::Array< optional<float> >& cc);
            float  GetInfluence(::sfz::Array< optional<int> >& cc);
    };
    
    
    class SfzSignalUnitRack : public SignalUnitRack, public EqUnitSupport {
        private:
            EndpointUnit  suEndpoint;
            AmpEGUnit     suVolEG;
            FilEGUnit     suFilEG;
            PitchEGUnit   suPitchEG;
            
            AmpLFOUnit   suAmpLFO;
            PitchLFOUnit suPitchLFO;
            FilLFOUnit   suFilLFO;
            
            // SFZ v2
            
            SmoothCCUnit suVolOnCC;
            SmoothCCUnit suPitchOnCC;
            SmoothCCUnit suCutoffOnCC;
            SmoothCCUnit suResOnCC;
            
            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;
            
            // used for optimization - contains only the ones that are modulating filter cutoff
            FixedArray<EGv2Unit*> filEGs;
            
            // used for optimization - contains only the ones that are modulating resonance
            FixedArray<EGv2Unit*> resEGs;
            
            // used for optimization - contains only the ones that are modulating pan
            FixedArray<EGv2Unit*> panEGs;
            
            // used for optimization - contains only the ones that are modulating EQ
            FixedArray<EGv2Unit*> eqEGs;
            
            
            FixedArray<LFOv2Unit*> LFOs;
            
            // used for optimization - contains only the ones that are modulating volume
            FixedArray<LFOv2Unit*> volLFOs;
            
            // 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;
            
            // used for optimization - contains only the ones that are modulating EQ
            FixedArray<LFOv2Unit*> eqLFOs;
            

        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();
            virtual void EnterFadeOutStage(int maxFadeOutSteps);
            
            /** Called when the engine is set and the engine's pools are ready to use. */
            void InitRTLists();
            
            /** Invoked when the voice gone inactive. */
            void Reset();

            void CalculateFadeOutCoeff(float FadeOutTime, float SampleRate);
            
            virtual void UpdateEqSettings(EqSupport* pEqSupport);
            
            friend class EndpointUnit;
    };
}} // namespace LinuxSampler::sfz

#endif  /* __LS_SFZSIGNALUNITRACK_H__ */

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::update(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