Merge "DngCreator: Assume square pixel centered at (x+0.5, y+0.5)" into qt-dev

        const float cx, const float cy, const float f,

        const int preCorrW, const int preCorrH, const int xMin, const int yMin) {

    undistort(x, y, distortion, cx, cy, f);

    int xMax = xMin + preCorrW - 1;

    int yMax = yMin + preCorrH - 1;

    if (x < xMin || y < yMin || x > xMax || y > yMax) {

    // xMin and yMin are inclusive, and xMax and yMax are exclusive.

    int xMax = xMin + preCorrW;

    int yMax = yMin + preCorrH;

    if (x < xMin || y < yMin || x >= xMax || y >= yMax) {

        return false;

    }

    return true;

            if (entry3.count == 5) {

                gotDistortion = true;

                // Scale the distortion coefficients to create a zoom in warpped image so that all

                // pixels are drawn within input image.

                for (size_t i = 0; i < entry3.count; i++) {

                            preXMin, preYMin);

                }

                float m_x = std::fmaxf(preWidth-1 - cx, cx);

                float m_y = std::fmaxf(preHeight-1 - cy, cy);

                float m_x = std::fmaxf(preWidth - cx, cx);

                float m_y = std::fmaxf(preHeight - cy, cy);

                float m_sq = m_x*m_x + m_y*m_y;

                float m = sqrtf(m_sq); // distance to farthest corner from optical center

                float f_sq = f * f;