Xvnc with RENDER - almost working

[Erik Soderquist]

I can't say I really understand this, but just a shot in the dark, what of taking the absolute value of any negatives? that way in the example below, the -47 would then become 47. is this even worth a try?

-----Original Message-----
From: vnc-list-admin "at" realvnc.com [mailto:vnc-list-admin "at" realvnc.com] On Behalf Of Tim Waugh
Sent: Thursday, March 31, 2005 10:22
To: Peter Estrand
Cc: vnc-list "at" realvnc.com; xorg "at" lists.freedesktop.org
Subject: Re: Xvnc with RENDER - almost working

On Thu, Mar 31, 2005 at 01:35:43PM +0200, Peter Estrand wrote:

> I've been able to reproduce this problem now. For me, it only happens in
> the GNOME environment, not in KDE. Xvnc gives error messages like:
>
> ComparingUpdateTracker: rect outside fb (-47,76-171,89)

Yes, I see messages like that too (now that I look).

> The problem seems to be that vncHooksComposite is sometimes called with a
> negative xDst argument. I suppose the caller is to blame. Anyone knows why
> this might happen?
>
> Anyway, a simply argument validation, at the beginning of
> vncHooksComposite, seems to fix the problem:
>
>   if ((xDst < 0) || (yDst < 0))
>       return;

Well, that removes the 'striping' effect, but instead just large
regions don't get repainted now. :-/

Thanks,
Tim.
*/

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