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/LFOAll.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, LFO::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::updateByMIDICtrlValue(ExtControlValue); }
            
            virtual void Trigger (
                float Frequency, LFO::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<LFOTriangleSigned> 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<LFOTriangleSigned>                   lfo0; // triangle
            LfoBase<LFOSineSigned>                       lfo1; // sine
            LfoBase<LFOPulse<LFO::range_unsigned, 750> > lfo2; // pulse 75%
            LfoBase<LFOSquareSigned>                     lfo3; // square
            LfoBase<LFOPulse<LFO::range_unsigned,250>>   lfo4; // pulse 25%
            LfoBase<LFOPulse<LFO::range_unsigned,125>>   lfo5; // pulse 12,5%
            LfoBase<SawUpLFO<LFO::range_unsigned>>       lfo6; // saw up
            LfoBase<SawDownLFO<LFO::range_unsigned>>     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/LFOAll.h"
31
32	namespace LinuxSampler { namespace sfz {
33	const int MaxUnitCount = 200;
34	const int maxEgCount = 30; // Maximum number of v2 envelope generators
35	const int maxLfoCount = 30; // Maximum number of v2 LFOs
36
37	class Voice;
38	class SfzSignalUnitRack;
39
40	class SfzSignalUnit: public SignalUnit {
41	public:
42	Voice* pVoice;
43
44	SfzSignalUnit(SfzSignalUnitRack* rack);
45	SfzSignalUnit(const SfzSignalUnit& Unit): SignalUnit(Unit.pRack) { Copy(Unit); }
46
47	void Copy(const SfzSignalUnit& Unit) {
48	pVoice = Unit.pVoice;
49
50	SignalUnit::Copy(Unit);
51	}
52
53	double GetSampleRate();
54	float GetInfluence(ArrayList< ::sfz::CC>& cc);
55	};
56
57
58	class CCUnit: public CCSignalUnit {
59	public:
60	Voice* pVoice;
61
62	CCUnit(SfzSignalUnitRack* rack, Listener* l = NULL);
63
64	virtual void Trigger();
65
66	void SetCCs(::sfz::Array<int>& pCC);
67	void SetCCs(::sfz::Array<float>& pCC);
68	void SetCCs(ArrayList< ::sfz::CC>& cc);
69
70	virtual void AddSmoothCC(uint8_t Controller, float Influence, short int Curve, float Smooth, float Step);
71
72	int GetCurveCount();
73	::sfz::Curve* GetCurve(int idx);
74
75	double GetSampleRate();
76	};
77
78	class CurveCCUnit: public CCUnit {
79	public:
80	CurveCCUnit(SfzSignalUnitRack* rack, Listener* l = NULL): CCUnit(rack, l) { }
81
82	virtual float Normalize(uint8_t val, short int curve = -1) {
83	if (curve == -1) return val / 127.0f;
84	return GetCurve(curve)->v[val];
85	}
86	};
87
88
89
90	class SmoothCCUnit: public CurveCCUnit {
91	protected:
92	RTList<Smoother>* pSmoothers;
93	public:
94	SmoothCCUnit(SfzSignalUnitRack* rack, Listener* l = NULL): CurveCCUnit(rack, l), pSmoothers(NULL) { }
95	virtual ~SmoothCCUnit();
96
97	virtual void AddSmoothCC(uint8_t Controller, float Influence, short int Curve, float Smooth, float Step);
98	virtual void RemoveAllCCs() { CurveCCUnit::RemoveAllCCs(); pSmoothers->clear(); }
99	virtual void InitCCList(Pool<CC>* pCCPool, Pool<Smoother>* pSmootherPool);
100
101	void InitSmoothers(Pool<Smoother>* pSmootherPool);
102	};
103
104
105	class EqUnitSupport {
106	public:
107	EqUnitSupport(SfzSignalUnitRack* pRack, Voice* pVoice = NULL);
108
109	SmoothCCUnit suEq1GainOnCC;
110	SmoothCCUnit suEq2GainOnCC;
111	SmoothCCUnit suEq3GainOnCC;
112
113	SmoothCCUnit suEq1FreqOnCC;
114	SmoothCCUnit suEq2FreqOnCC;
115	SmoothCCUnit suEq3FreqOnCC;
116
117	SmoothCCUnit suEq1BwOnCC;
118	SmoothCCUnit suEq2BwOnCC;
119	SmoothCCUnit suEq3BwOnCC;
120
121	void SetVoice(Voice* pVoice);
122	void ImportUnits(SfzSignalUnitRack* pRack);
123	void ResetUnits();
124	void InitCCLists(Pool<CCSignalUnit::CC>* pCCPool, Pool<Smoother>* pSmootherPool);
125	};
126
127
128	class XFInCCUnit: public CCUnit {
129	public:
130	XFInCCUnit(SfzSignalUnitRack* rack, Listener* l = NULL): CCUnit(rack, l) { }
131
132	virtual bool Active() { return !pCtrls->isEmpty(); }
133	virtual void Calculate();
134	virtual void SetCrossFadeCCs(::sfz::Array<int>& loCCs, ::sfz::Array<int>& hiCCs);
135	};
136
137
138	class XFOutCCUnit: public XFInCCUnit {
139	public:
140	XFOutCCUnit(SfzSignalUnitRack* rack, Listener* l = NULL): XFInCCUnit(rack, l) { }
141
142	virtual void Calculate();
143	};
144
145
146	template <class T>
147	class EGUnit: public SfzSignalUnit {
148	public:
149	::sfz::EG* pEGInfo;
150	T EG;
151
152	EGUnit(SfzSignalUnitRack* rack): SfzSignalUnit(rack), pEGInfo(NULL) { }
153	EGUnit(const EGUnit& Unit): SfzSignalUnit(Unit) { Copy(Unit); }
154	void operator=(const EGUnit& Unit) { Copy(Unit); }
155
156	void Copy(const EGUnit& Unit) {
157	pEGInfo = Unit.pEGInfo;
158
159	SfzSignalUnit::Copy(Unit);
160	}
161
162	virtual bool Active() { return EG.active(); }
163	virtual float GetLevel() { return DelayStage() ? 0 : EG.getLevel(); }
164
165	virtual void EnterReleaseStage() { EG.update(EG::event_release, GetSampleRate()); }
166	virtual void CancelRelease() { EG.update(EG::event_cancel_release, GetSampleRate()); }
167
168	virtual void Increment() {
169	if (DelayStage()) return;
170
171	SfzSignalUnit::Increment();
172	if (!EG.active()) return;
173
174	switch (EG.getSegmentType()) {
175	case EG::segment_lin:
176	EG.processLin();
177	break;
178	case EG::segment_exp:
179	EG.processExp();
180	break;
181	case EG::segment_end:
182	EG.getLevel();
183	break; // noop
184	case EG::segment_pow:
185	EG.processPow();
186	break;
187	}
188
189	if (EG.active()) {
190	EG.increment(1);
191	if (!EG.toStageEndLeft()) EG.update(EG::event_stage_end, GetSampleRate());
192	}
193	}
194	};
195
196	class EGv1Unit: public EGUnit<EGADSR> {
197	public:
198	int depth;
199	EGv1Unit(SfzSignalUnitRack* rack): EGUnit<EGADSR>(rack), depth(0) { }
200	};
201
202	class EGv2Unit: public EGUnit< ::LinuxSampler::sfz::EG>, public EqUnitSupport {
203	protected:
204	::sfz::EG egInfo;
205	public:
206	CCUnit suAmpOnCC;
207	CCUnit suVolOnCC;
208	CCUnit suPitchOnCC;
209	CCUnit suCutoffOnCC;
210	CCUnit suResOnCC;
211	CurveCCUnit suPanOnCC;
212
213	EGv2Unit(SfzSignalUnitRack* rack);
214	virtual void Trigger();
215	};
216
217	class PitchEGUnit: public EGv1Unit {
218	public:
219	PitchEGUnit(SfzSignalUnitRack* rack): EGv1Unit(rack) { }
220	virtual void Trigger();
221	};
222
223	class FilEGUnit: public EGv1Unit {
224	public:
225	FilEGUnit(SfzSignalUnitRack* rack): EGv1Unit(rack) { }
226	virtual void Trigger();
227	};
228
229	class AmpEGUnit: public EGv1Unit {
230	public:
231	AmpEGUnit(SfzSignalUnitRack* rack): EGv1Unit(rack) { }
232	virtual void Trigger();
233	};
234
235	class AbstractLfo {
236	public:
237	virtual float Render() = 0;
238	virtual void Update(const uint16_t& ExtControlValue) = 0;
239	virtual void Trigger(float Frequency, LFO::start_level_t StartLevel, uint16_t InternalDepth, uint16_t ExtControlDepth, bool FlipPhase, unsigned int SampleRate) = 0;
240	virtual void SetPhase(float phase) = 0;
241	virtual void SetFrequency(float Frequency, unsigned int SampleRate) = 0;
242	};
243
244	template <class T>
245	class LfoBase: public AbstractLfo, public T {
246	public:
247	LfoBase(float Max): T(Max) { }
248	virtual float Render() { return T::render(); }
249
250	virtual void Update(const uint16_t& ExtControlValue) { T::updateByMIDICtrlValue(ExtControlValue); }
251
252	virtual void Trigger (
253	float Frequency, LFO::start_level_t StartLevel, uint16_t InternalDepth,
254	uint16_t ExtControlDepth, bool FlipPhase, unsigned int SampleRate
255	) {
256	T::trigger(Frequency, StartLevel, InternalDepth, ExtControlDepth, FlipPhase, SampleRate);
257	}
258
259	virtual void SetPhase(float phase) { T::setPhase(phase); }
260
261	virtual void SetFrequency(float Frequency, unsigned int SampleRate) {
262	T::setFrequency(Frequency, SampleRate);
263	}
264	};
265
266	class LFOUnit;
267
268	class FadeEGUnit: public EGUnit<EGADSR> {
269	public:
270	FadeEGUnit(SfzSignalUnitRack* rack): EGUnit<EGADSR>(rack) { }
271	virtual void Trigger() { }
272	virtual void EnterReleaseStage() { }
273	virtual void CancelRelease() { }
274
275	friend class LFOUnit;
276	};
277
278	class LFOUnit: public SfzSignalUnit, public CCSignalUnit::Listener {
279	public:
280	::sfz::LFO* pLfoInfo;
281	AbstractLfo* pLFO;
282	FadeEGUnit suFadeEG;
283	SmoothCCUnit suDepthOnCC;
284	SmoothCCUnit suFreqOnCC;
285
286	LFOUnit(SfzSignalUnitRack* rack);
287	LFOUnit(const LFOUnit& Unit);
288	void operator=(const LFOUnit& Unit) { Copy(Unit); }
289
290	void Copy(const LFOUnit& Unit) {
291	pLfoInfo = Unit.pLfoInfo;
292	suFadeEG = Unit.suFadeEG;
293
294	SfzSignalUnit::Copy(Unit);
295	}
296
297	virtual void Trigger();
298	virtual void Increment();
299	virtual float GetLevel() { return Level; }
300
301	// CCSignalUnit::Listener interface implementation
302	virtual void ValueChanged(CCSignalUnit* pUnit);
303	};
304
305	class LFOv1Unit: public LFOUnit {
306	public:
307	::sfz::LFO lfoInfo;
308	LfoBase<LFOTriangleSigned> lfo;
309
310	LFOv1Unit(SfzSignalUnitRack* rack): LFOUnit(rack), lfo(1200.0f) {
311	pLfoInfo = &lfoInfo; pLFO = &lfo;
312	}
313
314	virtual void Trigger();
315	};
316
317	class LFOv2Unit: public LFOUnit, public EqUnitSupport {
318	protected:
319	FixedArray<AbstractLfo*> lfos;
320	LfoBase<LFOTriangleSigned> lfo0; // triangle
321	LfoBase<LFOSineSigned> lfo1; // sine
322	LfoBase<LFOPulse<LFO::range_unsigned, 750> > lfo2; // pulse 75%
323	LfoBase<LFOSquareSigned> lfo3; // square
324	LfoBase<LFOPulse<LFO::range_unsigned,250>> lfo4; // pulse 25%
325	LfoBase<LFOPulse<LFO::range_unsigned,125>> lfo5; // pulse 12,5%
326	LfoBase<SawUpLFO<LFO::range_unsigned>> lfo6; // saw up
327	LfoBase<SawDownLFO<LFO::range_unsigned>> lfo7; // saw down
328
329
330	public:
331	SmoothCCUnit suVolOnCC;
332	SmoothCCUnit suPitchOnCC;
333	SmoothCCUnit suPanOnCC;
334	SmoothCCUnit suCutoffOnCC;
335	SmoothCCUnit suResOnCC;
336
337	LFOv2Unit(SfzSignalUnitRack* rack);
338
339	virtual void Trigger();
340	virtual bool Active() { return true; }
341	};
342
343	class AmpLFOUnit: public LFOv1Unit {
344	public:
345	AmpLFOUnit(SfzSignalUnitRack* rack): LFOv1Unit(rack) { }
346
347	virtual void Trigger();
348	};
349
350	class PitchLFOUnit: public LFOv1Unit {
351	public:
352	PitchLFOUnit(SfzSignalUnitRack* rack): LFOv1Unit(rack) { }
353
354	virtual void Trigger();
355	};
356
357	class FilLFOUnit: public LFOv1Unit {
358	public:
359	FilLFOUnit(SfzSignalUnitRack* rack): LFOv1Unit(rack) { }
360
361	virtual void Trigger();
362	};
363
364
365	class EndpointUnit: public EndpointSignalUnit {
366	private:
367	float xfCoeff; // crossfade coefficient
368	float pitchVeltrackRatio;
369
370	public:
371	Voice* pVoice;
372	XFInCCUnit suXFInCC;
373	XFOutCCUnit suXFOutCC;
374	SmoothCCUnit suPanOnCC;
375
376	EndpointUnit(SfzSignalUnitRack* rack);
377
378	virtual void Trigger();
379
380	/**
381	* The endpoint should be active until the volume EG is active.
382	* This method determines the end of the voice playback.
383	*/
384	virtual bool Active();
385
386	virtual float GetVolume();
387	virtual float GetFilterCutoff();
388	virtual float GetPitch();
389	virtual float GetResonance();
390	virtual float GetPan();
391
392	SfzSignalUnitRack* const GetRack();
393
394	virtual float CalculateResonance(float res) {
395	return GetResonance() + res;
396	}
397
398	virtual float CalculateFilterCutoff(float cutoff);
399
400	float GetInfluence(::sfz::Array< optional<float> >& cc);
401	float GetInfluence(::sfz::Array< optional<int> >& cc);
402	};
403
404
405	class SfzSignalUnitRack : public SignalUnitRack, public EqUnitSupport {
406	private:
407	EndpointUnit suEndpoint;
408	AmpEGUnit suVolEG;
409	FilEGUnit suFilEG;
410	PitchEGUnit suPitchEG;
411
412	AmpLFOUnit suAmpLFO;
413	PitchLFOUnit suPitchLFO;
414	FilLFOUnit suFilLFO;
415
416	// SFZ v2
417
418	SmoothCCUnit suVolOnCC;
419	SmoothCCUnit suPitchOnCC;
420	SmoothCCUnit suCutoffOnCC;
421	SmoothCCUnit suResOnCC;
422
423	FixedArray<EGv2Unit*> EGs;
424
425	// used for optimization - contains only the ones that are modulating volume
426	FixedArray<EGv2Unit*> volEGs;
427
428	// used for optimization - contains only the ones that are modulating pitch
429	FixedArray<EGv2Unit*> pitchEGs;
430
431	// used for optimization - contains only the ones that are modulating filter cutoff
432	FixedArray<EGv2Unit*> filEGs;
433
434	// used for optimization - contains only the ones that are modulating resonance
435	FixedArray<EGv2Unit*> resEGs;
436
437	// used for optimization - contains only the ones that are modulating pan
438	FixedArray<EGv2Unit*> panEGs;
439
440	// used for optimization - contains only the ones that are modulating EQ
441	FixedArray<EGv2Unit*> eqEGs;
442
443
444	FixedArray<LFOv2Unit*> LFOs;
445
446	// used for optimization - contains only the ones that are modulating volume
447	FixedArray<LFOv2Unit*> volLFOs;
448
449	// used for optimization - contains only the ones that are modulating pitch
450	FixedArray<LFOv2Unit*> pitchLFOs;
451
452	// used for optimization - contains only the ones that are modulating filter cutoff
453	FixedArray<LFOv2Unit*> filLFOs;
454
455	// used for optimization - contains only the ones that are modulating resonance
456	FixedArray<LFOv2Unit*> resLFOs;
457
458	// used for optimization - contains only the ones that are modulating pan
459	FixedArray<LFOv2Unit*> panLFOs;
460
461	// used for optimization - contains only the ones that are modulating EQ
462	FixedArray<LFOv2Unit*> eqLFOs;
463
464
465	public:
466	Voice* const pVoice;
467
468	/**
469	* @param Voice The voice to which this rack belongs.
470	*/
471	SfzSignalUnitRack(Voice* voice);
472	~SfzSignalUnitRack();
473
474	virtual EndpointSignalUnit* GetEndpointUnit();
475
476	virtual void Trigger();
477	virtual void EnterFadeOutStage();
478	virtual void EnterFadeOutStage(int maxFadeOutSteps);
479
480	/** Called when the engine is set and the engine's pools are ready to use. */
481	void InitRTLists();
482
483	/** Invoked when the voice gone inactive. */
484	void Reset();
485
486	void CalculateFadeOutCoeff(float FadeOutTime, float SampleRate);
487
488	virtual void UpdateEqSettings(EqSupport* pEqSupport);
489
490	friend class EndpointUnit;
491	};
492	}} // namespace LinuxSampler::sfz
493
494	#endif /* __LS_SFZSIGNALUNITRACK_H__ */
495