[PATCH xserver] glamor: Paint first and last pixel of lines

[Adam Jackson]

On Mon, 2017-02-13 at 14:54 -0800, Keith Packard wrote:

> X doesn't put any hard requirements on 0-width lines though; why do
> we think we can't use whatever GL does for this?

fb has been the only extant renderer for nearly nine years. Clearly
there exists code that expects it. I'm not convinced that pushing back
on that expectation is a good move, technically correct though it may
be.

- ajax