Re: Stipples and scroll optimizations

[Po Lu]

Eli Zaretskii <eliz@gnu.org> writes:

> But that can be different (even VERY different) from what _should_ be
> on the glass.  We cannot rely on the current matrix for making such
> decisions.

Yes, but the problem here is that we cannot copy what already _is_ on
the glass if there is a stipple.  So the contents of the desired matrix
are irrelevant for our purposes.