Function roi_intersection

src/libOpenImageIO/imagebuf.cpp:120–127

ROI
roi_intersection (const ROI &A, const ROI &B)
{
    return ROI (std::max (A.xbegin, B.xbegin), std::min (A.xend, B.xend),
                std::max (A.ybegin, B.ybegin), std::min (A.yend, B.yend),
                std::max (A.zbegin, B.zbegin), std::min (A.zend, B.zend),
                std::max (A.chbegin, B.chbegin), std::min (A.chend, B.chend));
}