On Sat, 23 Feb 2002, Keith Packard wrote:
>
> Around 13 o'clock on Feb 23, Davy Durham wrote:
>
> > However, when I resize the window to
> > straddle two screens using xinerama support, part of the blit is
> > ignored...
>
> It's not ignored, your application will recieve a 'GraphicsExpose' event
> letting you know that the blt lost some bits and you need to repaint them.
> This isn't exactly 'protocol conformant', but that's one of the costs of
> Xinerama.
>
One of the things the X.org Xinerama task force is doing is
redefining the specification in Xinerama mode (and updating the test
suite). So, this will be 'protocol conformant' when it's integrated
into the SI as an official extension, because the protocol will
have been changed.
Preserving blits across screens isn't done because it's very
expensive on today's graphics hardware. It's almost always, if not
always, faster to redraw it.
Mark.
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