Function dft_1d

tests/validation/reference/DFT.cpp:332–341

template <typename T>
SimpleTensor<T> dft_1d(const SimpleTensor<T> &src, FFTDirection direction)
{
    auto dst = dft_1d_core(src, direction);
    if (direction == FFTDirection::Inverse)
    {
        const T scaling_factor = T(dst.shape()[0]);
        scale(dst, scaling_factor);
    }
    return dst;
}

template <typename T>
SimpleTensor<T> rdft_2d(const SimpleTensor<T> &src)