Function linearInterpFunc

src/backend/cpu/kernel/interp.hpp:32–34

template<typename InT, typename LocT>
InT linearInterpFunc(InT val[2], LocT ratio) {
    return (1 - ratio) * val[0] + ratio * val[1];
}

template<typename InT, typename LocT>
InT bilinearInterpFunc(InT val[2][2], LocT xratio, LocT yratio) {