Function hair_quad

fn hair_quad(
    points: &[Point; 3],
    clip: Option<&ScreenIntRect>,
    inset_clip: Option<&IntRect>,
    outset_clip: Option<&IntRect>,
    level: u8,
    line_proc: fn(&[Point], Option<&ScreenIntRect>, &mut dyn Blitter),
    blitter: &mut dyn Blitter,
)