provide v4l-bitmap load-image "v4l.pfo" pfo # ( format devicename -- ) : grabber ` v4l new >r # create grabber object r constant # compile as constant r v4l:device # set device r> v4l:format ; # set capture format # image grabbers : v4l ` i420 swap grabber does> v4l:grab >image ; : v4l-bitmap grabber does> v4l:grab ; : v4l-texture ` bgr swap grabber does> v4l:grab ` gl-rgb bitmap-from-bitmap >texture ;