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

[Adam Jackson]

On Mon, 2017-02-13 at 09:42 -0800, Keith Packard wrote:
> Max Staudt <mstaudt at suse.de> writes:
> 
> > Okay, so do you think we can take the patch for the GXcopy case,
> > and fall back to mi otherwise?
> 
> We shouldn't mask driver bugs like this; is there some reason you
> believe we can't actually go get the GL drivers to work right?

Is there some reason you believe GL's rasterisation rules for lines
match fb's zero-width lines? Section 14.5.1 of the 4.5 spec looks quite
a bit looser than fb to me.

- ajax