[Bug 23841] Steam windows appear tiled in many copies on screen with compositing enabled.

[wine-bugs at winehq.org]

http://bugs.winehq.org/show_bug.cgi?id=23841

--- Comment #15 from Jasper St. Pierre <jstpierre at mecheye.net> 2011-05-25 21:44:41 CDT ---
(In reply to comment #10)
> This bug is still visible in the Gnome 3 Shell. Is there a reason this bug is
> still Unconfirmed?

Because it's not a wine bug.

(In reply to comment #6)
> Created an attachment (id=30366)
 --> (http://bugs.winehq.org/attachment.cgi?id=30366) [details]
> test case attempt 1
> 
> Here's a first attempt at a test case.
> 
> This program creates a window and gives it a shape that is partially outside
> the window's bounding rectangle.
> 
> Unlike steam, the window is still decorated. I may need to fix that before
> you'll get an identical result.
> 
> While I still don't see anything outside the window with compositing metacity,
> moving the window creates a very interesting effect.

Thanks for the test case (one without window decorations is attached) ...
unfortunately, while your test case works perfectly with my mutter patches,
Steam still has some issues:

1) Windows often only work correctly if they've been shown before... otherwise
they'll have the same tiling problem they did before.

2) Resizing is horribly broken. Resizing with the handle inside the window has
some serious problems, and resizing with the border seems to have the same sort
of tiling effect until it has to redisplay the entire window.

Do you know of anything Wine or Steam do that could cause these problems?

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