linearegcore.h

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#pragma once

#include "synthbase.h"

// -----------------------------
//  --- SynthLab SDK File --- // 
//  ----------------------------
// -----------------------------------------------------------------------------
namespace SynthLab
{
    class LinearEGCore : public ModuleCore
    {
    public:
        LinearEGCore();             /* C-TOR */
        
        virtual ~LinearEGCore() {}      /* D-TOR */

        virtual bool reset(CoreProcData& processInfo) override;
        virtual bool update(CoreProcData& processInfo) override;
        virtual bool render(CoreProcData& processInfo) override;
        virtual bool doNoteOn(CoreProcData& processInfo) override;
        virtual bool doNoteOff(CoreProcData& processInfo) override;

        virtual int32_t getState() override { return enumToInt(state); }
        virtual bool shutdown() override;
        virtual void setSustainOverride(bool b) override;

    protected:
        inline double setStepInc(double timeMsec, double scale = 1.0);
        
        // --- local variables
        double sampleRate = 1.0;            
        double egStepInc = 0.0;             
        double attackTimeScalar = 0.0;      
        double decayTimeScalar = 0.0;       
        EGState state = EGState::kOff;      
        double envelopeOutput = 0.0;        
        bool sustainOverride = false;       
        bool releasePending = false;        
        bool resetToZero = false;           
        double incShutdown = 0.0;           
    };

} // namespace