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#ifndef __ADVANCED_TYPES_HPP__
#define __ADVANCED_TYPES_HPP__

#include <opencv2/core.hpp>

/********************* Defines *********************/

#ifndef CV_SQR
#  define CV_SQR(x)  ((x)*(x))
#endif

#ifndef CV_CUBE
#  define CV_CUBE(x)  ((x)*(x)*(x))
#endif

#ifndef CV_INIT_VECTOR
#  define CV_INIT_VECTOR(vname, type, ...) \
    static const type vname##_a[] = __VA_ARGS__; \
    std::vector <type> vname(vname##_a, \
    vname##_a + sizeof(vname##_a) / sizeof(*vname##_a))
#endif

/********************* Types *********************/

/*! fictitious type to highlight that function
 *  can process n-channels arguments */
typedef cv::Mat NChannelsMat;

/********************* Functions *********************/

namespace cv
{

template <typename _Tp, typename _Tp2> inline
    cv::Size_<_Tp> operator * (const _Tp2 &x, const cv::Size_<_Tp> &sz)
{
    return cv::Size_<_Tp>(cv::saturate_cast<_Tp>(x*sz.width), cv::saturate_cast<_Tp>(x*sz.height));
}

template <typename _Tp, typename _Tp2> inline
    cv::Size_<_Tp> operator / (const cv::Size_<_Tp> &sz, const _Tp2 &x)
{
    return cv::Size_<_Tp>(cv::saturate_cast<_Tp>(sz.width/x), cv::saturate_cast<_Tp>(sz.height/x));
}

} // cv

#endif /* __ADVANCED_TYPES_HPP__ */