Formula.h

// Formula.h
// ofxPDSP
// Nicola Pisanti, MIT License, 2016


#ifndef PDSP_CORE_FORMULA_H_INCLUDED
#define PDSP_CORE_FORMULA_H_INCLUDED

#include "BasicNodes.h"

namespace pdsp{
    
class Formula :   public Unit{

public:
    Formula();
    
    float meter_input() const;
    
    float meter_output() const;
    
    Patchable& set(float value);
    
    void enableBoundaries( float low, float high);
    
    void disableBoundaries();
    
protected:

    virtual float formula(const float & x) noexcept = 0;
        
    virtual void formulaAudioRate(float* & output, const float* & input, const int & bufferSize) noexcept;

private:

    float lastProcessedValue;
    void process (int bufferSize) noexcept override;

    void prepareUnit( int expectedBufferSize, double sampleRate ) override;
    void releaseResources () override;
   
    OutputNode output;
    InputNode  input;        

    std::atomic<float> inputMeter;
    std::atomic<float> outputMeter;

};

}//END NAMESPACE






#endif  // FORMULA_H_INCLUDED