Function Tex2Di

cpp/5_Domain_Specific/HSOpticalFlow/flowGold.cpp:103–118

////////////////////////////////////////////////////////////////////////// \brief host texture fetch read specific texel value out of range coords are mirrored \param[in] t texture raw data \param[in] w texture width \param[in] h texture height \param[in] s texture stride \param[in] x x coord of the point to fetch value at \param[in] y y coord of the point to fetch value at \ret

/// \return fetched value
///////////////////////////////////////////////////////////////////////////////
inline float Tex2Di(const float *src, int w, int h, int s, int x, int y)
{
    if (x < 0)
        x = abs(x + 1);

    if (y < 0)
        y = abs(y + 1);

    if (x >= w)
        x = w * 2 - x - 1;

    if (y >= h)
        y = h * 2 - y - 1;

    return src[x + y * s];
}

///////////////////////////////////////////////////////////////////////////////
/// \brief resize image