Re: Issues with partial repainting when enabling cairo

[Yuri D'Elia <wavexx@thregr.org>]

On Fri, Jan 27 2017, Eli Zaretskii wrote:
>> There are some bug reports about cairo on the bts, but nothing so
>> glaring.
>
> Glaring display bugs are the main problem with Cairo, AFAIK.  We need
> motivated individuals who'd work on debugging and fixing those
> problems.

Apart from being newer, is there any advantage that cairo should bring
to the display engine?

When I was reading the display code (for debugging the line truncation
hang some months ago) it didn't seem quickly approachable to the
uninitiated. In addition, there's quite some historical baggage one
needs to consider.

Similarly, I wanted to fix the fontconf/Xresource discrepancy for the
freetype rendering params, but again I ran out of time during the
weekend :/

Each time I read the internals I can get further, but I've been using
emacs for 10+ years, and I wonder what kind of guru one needs to be to
have the balls^H^H^H^Hbeard to fix cairo ;)