boost::gil::planar_rgba_view

template<typename ChannelPtr>
type_from_x_iterator<planar_pixel_iterator<ChannelPtr, rgba_t>>::view_t
planar_rgba_view(
    std::size_t width,
    std::size_t height,
    ChannelPtr r,
    ChannelPtr g,
    ChannelPtr b,
    ChannelPtr a,
    std::ptrdiff_t rowsize_in_bytes);