|Summary:||Mixed redirected/unredirected windows corrupt clip lists|
|Product:||xorg||Reporter:||Owen Taylor <otaylor>|
|Component:||Server/General||Assignee:||Xorg Project Team <xorg-team>|
|Status:||RESOLVED FIXED||QA Contact:||Xorg Project Team <xorg-team>|
|i915 platform:||i915 features:|
|Bug Depends on:|
Description Owen Taylor 2008-05-04 21:34:55 UTC
Originally reported as: https://bugzilla.redhat.com/show_bug.cgi?id=441219 If you have a set of redirected windows (that don't clip the parent window), and then map a window above them that isn't redirected, such as the composite overlay window, the border clip for the redirected windows becomes invalid due to a logic error in miValidateTree, and this spreads eventually to the parent window as well. The symptom is then then that drawing on the parent window isn't clipped by the non-redirected window, causing various types of visual corruption and artifacts.
Comment 1 Owen Taylor 2008-05-05 05:35:43 UTC
commit 6c1accce87c9bd640c1b4bbc49bae7d44b1cc97b Author: Keith Packard <email@example.com> Date: Sun May 4 21:51:08 2008 -0700 Empty the borderClip of manual redirect windows. (bug 15823) Thanks to Owen Taylor for root-causing this one. If a TreatAsTransparent window has any area in the borderClip, that will be added to the totalClip region for use by other windows. That's wrong. Instead, simply empty the borderClip for TreatAsTransparent windows right up front.
Comment 2 Adam Jackson 2008-05-06 10:04:24 UTC
Cherry-picked to 1.5 branch. Thanks!