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/*************************************************************************** |
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* * |
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* LinuxSampler - modular, streaming capable sampler * |
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* * |
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* Copyright (C) 2011 Grigor Iliev * |
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* * |
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* This program is free software; you can redistribute it and/or modify * |
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* it under the terms of the GNU General Public License as published by * |
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* the Free Software Foundation; either version 2 of the License, or * |
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* (at your option) any later version. * |
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* * |
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* This program is distributed in the hope that it will be useful, * |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of * |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * |
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* GNU General Public License for more details. * |
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* * |
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* You should have received a copy of the GNU General Public License * |
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* along with this program; if not, write to the Free Software * |
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, * |
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* MA 02111-1307 USA * |
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***************************************************************************/ |
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|
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#ifndef __LS_SFZSIGNALUNITRACK_H__ |
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#define __LS_SFZSIGNALUNITRACK_H__ |
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|
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#include "../common/SignalUnitRack.h" |
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#include "EG.h" |
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#include "EGADSR.h" |
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#include "../common/AbstractVoice.h" |
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#include "../common/PulseLFO.h" |
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#include "../common/SawLFO.h" |
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#include "../common/SineLFO.h" |
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|
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namespace LinuxSampler { namespace sfz { |
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const int MaxUnitCount = 200; |
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const int maxEgCount = 30; // Maximum number of v2 envelope generators |
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const int maxLfoCount = 30; // Maximum number of v2 LFOs |
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|
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class Voice; |
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class SfzSignalUnitRack; |
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|
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class SfzSignalUnit: public SignalUnit { |
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public: |
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Voice* pVoice; |
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|
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SfzSignalUnit(SfzSignalUnitRack* rack); |
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SfzSignalUnit(const SfzSignalUnit& Unit): SignalUnit(Unit.pRack) { Copy(Unit); } |
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|
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void Copy(const SfzSignalUnit& Unit) { |
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pVoice = Unit.pVoice; |
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|
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SignalUnit::Copy(Unit); |
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} |
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|
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double GetSampleRate(); |
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float GetInfluence(ArrayList< ::sfz::CC>& cc); |
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}; |
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|
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|
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class CCUnit: public CCSignalUnit { |
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public: |
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Voice* pVoice; |
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|
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CCUnit(SfzSignalUnitRack* rack, Listener* l = NULL); |
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|
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virtual void Trigger(); |
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|
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void SetCCs(::sfz::Array<int>& pCC); |
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void SetCCs(ArrayList< ::sfz::CC>& cc); |
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|
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virtual void AddSmoothCC(uint8_t Controller, float Influence, short int Curve, float Smooth); |
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|
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inline int GetCurveCount(); |
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inline ::sfz::Curve* GetCurve(int idx); |
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|
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double GetSampleRate(); |
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}; |
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|
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class CurveCCUnit: public CCUnit { |
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public: |
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CurveCCUnit(SfzSignalUnitRack* rack, Listener* l = NULL): CCUnit(rack, l) { } |
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|
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virtual float Normalize(uint8_t val, short int curve = -1) { |
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if (curve == -1) return val / 127.0f; |
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return GetCurve(curve)->v[val]; |
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} |
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}; |
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|
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|
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|
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class SmoothCCUnit: public CurveCCUnit { |
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protected: |
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FixedArray<Smoother> Smoothers; |
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public: |
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SmoothCCUnit(SfzSignalUnitRack* rack, Listener* l = NULL): CurveCCUnit(rack, l), Smoothers(MaxCCs) { } |
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|
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virtual void AddSmoothCC(uint8_t Controller, float Influence, short int Curve, float Smooth); |
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|
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virtual void RemoveAllCCs() { CurveCCUnit::RemoveAllCCs(); Smoothers.clear(); } |
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}; |
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|
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|
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class XFInCCUnit: public CCUnit { |
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public: |
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XFInCCUnit(SfzSignalUnitRack* rack, Listener* l = NULL): CCUnit(rack, l) { } |
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|
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virtual bool Active() { return Ctrls.size() > 0; } |
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virtual void Calculate(); |
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virtual void SetCrossFadeCCs(::sfz::Array<int>& loCCs, ::sfz::Array<int>& hiCCs); |
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}; |
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|
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|
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class XFOutCCUnit: public XFInCCUnit { |
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public: |
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XFOutCCUnit(SfzSignalUnitRack* rack, Listener* l = NULL): XFInCCUnit(rack, l) { } |
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|
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virtual void Calculate(); |
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}; |
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|
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|
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template <class T> |
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class EGUnit: public SfzSignalUnit { |
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public: |
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::sfz::EG* pEGInfo; |
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T EG; |
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|
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EGUnit(SfzSignalUnitRack* rack): SfzSignalUnit(rack), pEGInfo(NULL) { } |
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EGUnit(const EGUnit& Unit): SfzSignalUnit(Unit) { Copy(Unit); } |
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void operator=(const EGUnit& Unit) { Copy(Unit); } |
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|
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void Copy(const EGUnit& Unit) { |
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pEGInfo = Unit.pEGInfo; |
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|
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SfzSignalUnit::Copy(Unit); |
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} |
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|
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virtual bool Active() { return EG.active(); } |
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virtual float GetLevel() { return DelayStage() ? 0 : EG.getLevel(); } |
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|
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virtual void EnterReleaseStage() { EG.update(EG::event_release, GetSampleRate()); } |
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virtual void CancelRelease() { EG.update(EG::event_cancel_release, GetSampleRate()); } |
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|
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virtual void Increment() { |
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if (DelayStage()) return; |
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|
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SfzSignalUnit::Increment(); |
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if (!EG.active()) return; |
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|
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switch (EG.getSegmentType()) { |
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case EG::segment_lin: |
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EG.processLin(); |
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break; |
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case EG::segment_exp: |
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EG.processExp(); |
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break; |
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case EG::segment_end: |
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EG.getLevel(); |
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break; // noop |
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case EG::segment_pow: |
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EG.processPow(); |
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break; |
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} |
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|
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if (EG.active()) { |
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EG.increment(1); |
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if (!EG.toStageEndLeft()) EG.update(EG::event_stage_end, GetSampleRate()); |
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} |
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} |
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}; |
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|
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class EGv1Unit: public EGUnit<EGADSR> { |
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public: |
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int depth; |
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EGv1Unit(SfzSignalUnitRack* rack): EGUnit<EGADSR>(rack), depth(0) { } |
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}; |
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|
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class EGv2Unit: public EGUnit< ::LinuxSampler::sfz::EG> { |
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protected: |
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::sfz::EG egInfo; |
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public: |
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CCUnit suAmpOnCC; |
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CCUnit suVolOnCC; |
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CCUnit suPitchOnCC; |
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CCUnit suCutoffOnCC; |
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CCUnit suResOnCC; |
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CurveCCUnit suPanOnCC; |
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|
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EGv2Unit(SfzSignalUnitRack* rack); |
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virtual void Trigger(); |
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}; |
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|
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class PitchEGUnit: public EGv1Unit { |
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public: |
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PitchEGUnit(SfzSignalUnitRack* rack): EGv1Unit(rack) { } |
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virtual void Trigger(); |
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}; |
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|
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class FilEGUnit: public EGv1Unit { |
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public: |
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FilEGUnit(SfzSignalUnitRack* rack): EGv1Unit(rack) { } |
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virtual void Trigger(); |
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}; |
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|
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class AmpEGUnit: public EGv1Unit { |
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public: |
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AmpEGUnit(SfzSignalUnitRack* rack): EGv1Unit(rack) { } |
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virtual void Trigger(); |
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}; |
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|
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class AbstractLfo { |
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public: |
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virtual float Render() = 0; |
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virtual void Update(const uint16_t& ExtControlValue) = 0; |
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virtual void Trigger(float Frequency, start_level_t StartLevel, uint16_t InternalDepth, uint16_t ExtControlDepth, bool FlipPhase, unsigned int SampleRate) = 0; |
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virtual void SetPhase(float phase) = 0; |
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virtual void SetFrequency(float Frequency, unsigned int SampleRate) = 0; |
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}; |
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|
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template <class T> |
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class LfoBase: public AbstractLfo, public T { |
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public: |
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LfoBase(float Max): T(Max) { } |
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virtual float Render() { return T::render(); } |
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|
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virtual void Update(const uint16_t& ExtControlValue) { T::update(ExtControlValue); } |
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|
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virtual void Trigger ( |
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float Frequency, start_level_t StartLevel, uint16_t InternalDepth, |
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uint16_t ExtControlDepth, bool FlipPhase, unsigned int SampleRate |
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) { |
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T::trigger(Frequency, StartLevel, InternalDepth, ExtControlDepth, FlipPhase, SampleRate); |
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} |
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|
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virtual void SetPhase(float phase) { T::setPhase(phase); } |
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|
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virtual void SetFrequency(float Frequency, unsigned int SampleRate) { |
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T::setFrequency(Frequency, SampleRate); |
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} |
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}; |
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|
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class LFOUnit; |
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|
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class FadeEGUnit: public EGUnit<EGADSR> { |
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public: |
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FadeEGUnit(SfzSignalUnitRack* rack): EGUnit<EGADSR>(rack) { } |
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virtual void Trigger() { } |
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virtual void EnterReleaseStage() { } |
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virtual void CancelRelease() { } |
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|
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friend class LFOUnit; |
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}; |
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|
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class LFOUnit: public SfzSignalUnit, public CCSignalUnit::Listener { |
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public: |
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::sfz::LFO* pLfoInfo; |
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AbstractLfo* pLFO; |
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FadeEGUnit suFadeEG; |
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SmoothCCUnit suDepthOnCC; |
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SmoothCCUnit suFreqOnCC; |
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|
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LFOUnit(SfzSignalUnitRack* rack); |
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LFOUnit(const LFOUnit& Unit); |
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void operator=(const LFOUnit& Unit) { Copy(Unit); } |
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|
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void Copy(const LFOUnit& Unit) { |
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pLfoInfo = Unit.pLfoInfo; |
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suFadeEG = Unit.suFadeEG; |
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|
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SfzSignalUnit::Copy(Unit); |
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} |
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|
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virtual bool Active() { return pLfoInfo->freq > 0; } |
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virtual void Trigger(); |
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virtual void Increment(); |
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virtual float GetLevel() { return Level; } |
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virtual void ValueChanged(CCSignalUnit* pUnit); |
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}; |
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|
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class LFOv1Unit: public LFOUnit { |
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public: |
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::sfz::LFO lfoInfo; |
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LfoBase<LFOSigned> lfo; |
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|
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LFOv1Unit(SfzSignalUnitRack* rack): LFOUnit(rack), lfo(1200.0f) { |
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pLfoInfo = &lfoInfo; pLFO = &lfo; |
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} |
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|
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virtual void Trigger(); |
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}; |
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|
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class LFOv2Unit: public LFOUnit { |
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protected: |
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FixedArray<AbstractLfo*> lfos; |
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LfoBase<LFOSigned> lfo0; // triangle |
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LfoBase<SineLFO<range_signed> > lfo1; // sine |
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LfoBase<PulseLFO<range_unsigned, 750> > lfo2; // pulse 75% |
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LfoBase<SquareLFO<range_signed> > lfo3; // square |
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LfoBase<PulseLFO<range_unsigned, 250> > lfo4; // pulse 25% |
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LfoBase<PulseLFO<range_unsigned, 125> > lfo5; // pulse 12,5% |
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LfoBase<SawLFO<range_unsigned, true> > lfo6; // saw up |
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LfoBase<SawLFO<range_unsigned, false> > lfo7; // saw down |
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|
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|
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public: |
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SmoothCCUnit suVolOnCC; |
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SmoothCCUnit suPitchOnCC; |
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SmoothCCUnit suPanOnCC; |
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SmoothCCUnit suCutoffOnCC; |
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SmoothCCUnit suResOnCC; |
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|
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LFOv2Unit(SfzSignalUnitRack* rack); |
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|
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virtual void Trigger(); |
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}; |
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|
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class AmpLFOUnit: public LFOv1Unit { |
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public: |
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AmpLFOUnit(SfzSignalUnitRack* rack): LFOv1Unit(rack) { } |
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|
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virtual void Trigger(); |
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}; |
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|
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class PitchLFOUnit: public LFOv1Unit { |
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public: |
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PitchLFOUnit(SfzSignalUnitRack* rack): LFOv1Unit(rack) { } |
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|
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virtual void Trigger(); |
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}; |
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|
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class FilLFOUnit: public LFOv1Unit { |
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public: |
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FilLFOUnit(SfzSignalUnitRack* rack): LFOv1Unit(rack) { } |
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|
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virtual void Trigger(); |
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}; |
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|
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|
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class EndpointUnit: public EndpointSignalUnit { |
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private: |
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float xfCoeff; // crossfade coefficient |
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float pitchVeltrackRatio; |
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|
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public: |
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Voice* pVoice; |
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XFInCCUnit suXFInCC; |
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XFOutCCUnit suXFOutCC; |
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SmoothCCUnit suPanOnCC; |
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|
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EndpointUnit(SfzSignalUnitRack* rack); |
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|
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virtual void Trigger(); |
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|
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/** The endpoint should be active until the volume EG is active. */ |
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virtual bool Active(); |
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|
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virtual float GetVolume(); |
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virtual float GetFilterCutoff(); |
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virtual float GetPitch(); |
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virtual float GetResonance(); |
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virtual float GetPan(); |
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|
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SfzSignalUnitRack* const GetRack(); |
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|
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virtual float CalculateResonance(float res) { |
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return GetResonance() + res; |
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} |
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|
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virtual float CalculateFilterCutoff(float cutoff); |
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}; |
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|
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|
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class SfzSignalUnitRack : public SignalUnitRack { |
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private: |
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EndpointUnit suEndpoint; |
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AmpEGUnit suVolEG; |
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FilEGUnit suFilEG; |
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PitchEGUnit suPitchEG; |
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|
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AmpLFOUnit suAmpLFO; |
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PitchLFOUnit suPitchLFO; |
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FilLFOUnit suFilLFO; |
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|
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// SFZ v2 |
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|
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SmoothCCUnit suVolOnCC; |
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|
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FixedArray<EGv2Unit*> EGs; |
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|
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// used for optimization - contains only the ones that are modulating volume |
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FixedArray<EGv2Unit*> volEGs; |
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|
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// used for optimization - contains only the ones that are modulating pitch |
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FixedArray<EGv2Unit*> pitchEGs; |
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|
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// used for optimization - contains only the ones that are modulating filter cutoff |
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FixedArray<EGv2Unit*> filEGs; |
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|
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// used for optimization - contains only the ones that are modulating resonance |
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FixedArray<EGv2Unit*> resEGs; |
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|
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// used for optimization - contains only the ones that are modulating pitch |
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FixedArray<EGv2Unit*> panEGs; |
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|
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|
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FixedArray<LFOv2Unit*> LFOs; |
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|
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// used for optimization - contains only the ones that are modulating volume |
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FixedArray<LFOv2Unit*> volLFOs; |
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|
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// used for optimization - contains only the ones that are modulating pitch |
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FixedArray<LFOv2Unit*> pitchLFOs; |
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|
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// used for optimization - contains only the ones that are modulating filter cutoff |
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FixedArray<LFOv2Unit*> filLFOs; |
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|
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// used for optimization - contains only the ones that are modulating resonance |
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FixedArray<LFOv2Unit*> resLFOs; |
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|
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// used for optimization - contains only the ones that are modulating pan |
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FixedArray<LFOv2Unit*> panLFOs; |
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|
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|
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public: |
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Voice* const pVoice; |
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|
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/** |
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* @param Voice The voice to which this rack belongs. |
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*/ |
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SfzSignalUnitRack(Voice* voice); |
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~SfzSignalUnitRack(); |
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|
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virtual EndpointSignalUnit* GetEndpointUnit(); |
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|
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virtual void Trigger(); |
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virtual void EnterFadeOutStage(); |
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|
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friend class EndpointUnit; |
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}; |
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}} // namespace LinuxSampler::sfz |
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|
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#endif /* __LS_SFZSIGNALUNITRACK_H__ */ |
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