MovingAverage.h

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#pragma once
#include <atomic>
#include "SameSizeBuffers.h"
#include <boost/thread/mutex.hpp>
#include <boost/signals2.hpp>
 
// Forward declarations
class ScanProcessor;
 
class MovingAverage
{
public: 
    // Constructor
    MovingAverage(ScanProcessor* scanProcessor);
 
    // Getters for displaying a moving average.
    bool Enabled        ()              { return _enabled; }
    int  GetWindowSize  ()              { return _windowSize; }
 
    // Setters for displaying a moving average.
    bool    SetEnabled          (bool value);
    bool    SetWindowSize       (int value);
    bool    Reset               ();
    int     CalcMovingAverage   (float*& inOutData);
 
    virtual void    OnWidthHeightChanged    (int width, int height);
 
private:
    boost::mutex _mutex;
    boost::signals2::connection _widthHeightConnection;
 
    std::atomic<int>    _width;
    std::atomic<int>    _height;
 
    std::atomic<bool>   _enabled;
    std::atomic<bool>   _reset;
 
    std::atomic<int>    _windowSize;
    std::atomic<int>    _numFilledBuffers;
 
    SameSizeBuffers<float, float> _outputDataBuffers;
    
    void    Init();
    bool    ResizeBuffers               ();
    void    ResetOutputDataBuffers      ();
};