Function caca_sys::caca_create_dither

pub unsafe extern "C" fn caca_create_dither(
    bpp: c_int, 
    w: c_int, 
    h: c_int, 
    pitch: c_int, 
    rmask: u32, 
    gmask: u32, 
    bmask: u32, 
    amask: u32
) -> *mut CacaDitherRaw