The commit message makes the assertion that the code below damage is not
allowed to change whether there's a damage monitor for the drawable.
That turns out not to be the case! exa's mixed code, at least, will
create and destroy a damage in PrepareAccess. The destroy path can then
be catastrophic, as damageRegionProcessPending will attempt to
RegionEmpty memory from the middle of a freed block.
I'd wanted that invariant for performance, but faster isn't worth
broken, so revert it. I think what exa's doing is reasonable, so the
better way to improve performance for the unmonitored case is to either
revisit dynamically wrapping into the GC, or inline damage into dix.
This reverts commit
|
||
---|---|---|
Xext | ||
Xi | ||
composite | ||
config | ||
damageext | ||
dbe | ||
dix | ||
doc | ||
dri3 | ||
exa | ||
fb | ||
glamor | ||
glx | ||
hw | ||
include | ||
m4 | ||
man | ||
mi | ||
miext | ||
os | ||
present | ||
pseudoramiX | ||
randr | ||
record | ||
render | ||
test | ||
xfixes | ||
xkb | ||
.dir-locals.el | ||
.gitignore | ||
COPYING | ||
Makefile.am | ||
README | ||
autogen.sh | ||
configure.ac | ||
devbook.am | ||
docbook.am | ||
fix-miregion | ||
fix-miregion-private | ||
fix-patch-whitespace | ||
fix-region | ||
manpages.am | ||
xorg-server.m4 | ||
xorg-server.pc.in | ||
xserver.ent.in |
X Server The X server accepts requests from client applications to create windows, which are (normally rectangular) "virtual screens" that the client program can draw into. Windows are then composed on the actual screen by the X server (or by a separate composite manager) as directed by the window manager, which usually communicates with the user via graphical controls such as buttons and draggable titlebars and borders. For a comprehensive overview of X Server and X Window System, consult the following article: http://en.wikipedia.org/wiki/X_server All questions regarding this software should be directed at the Xorg mailing list: http://lists.freedesktop.org/mailman/listinfo/xorg Please submit bug reports to the Xorg bugzilla: https://bugs.freedesktop.org/enter_bug.cgi?product=xorg The master development code repository can be found at: git://anongit.freedesktop.org/git/xorg/xserver http://cgit.freedesktop.org/xorg/xserver For patch submission instructions, see: http://www.x.org/wiki/Development/Documentation/SubmittingPatches For more information on the git code manager, see: http://wiki.x.org/wiki/GitPage