Function leptonica_sys::convertRGBToXYZ

pub unsafe extern "C" fn convertRGBToXYZ(
    rval: l_int32, 
    gval: l_int32, 
    bval: l_int32, 
    pfxval: *mut l_float32, 
    pfyval: *mut l_float32, 
    pfzval: *mut l_float32
) -> l_ok