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Thomas Hellstrom f84e59a4f4 glx: Duplicate relevant fbconfigs for compositing visuals
Previously, before GLX_OML_swap_method was fixed, both the X server and
client ignored the swapMethod fbconfig value, which meant that, if the dri
driver thought it exposed more than one swapMethod, it actually just
exported a duplicated set of fbconfigs. When fixing GLX_OML_swap_method
and restricting the choice for built-in visuals to a single swap method
that meant we didn't have that many fbconfigs to choose from when pairing
the compositing visual with an fbconfig, resulting in the fbconfig paired
with the compositing visual becoming too restrictive for some applications,
(at least for kwin). This problem would also happen if the dri driver
only exposed a single swap method to begin with.

So, to make sure the compositing visual gets a good enough fbconfig,
duplicate fbconfigs that are suitable for compositing visuals and make
sure these duplicated fbconfigs can be used only by compositing visuals.
For duplicated fbconfigs not paired with a compositing visual, construct
new compositing visuals, making compositing clients able to choose visuals
/ fbconfig more adapted to their needs.

This is in some sense equivalent to adding a new "TRUECOLOR_COMPOSITING"
GLX visualtype.

Fixes: 4486d199bd ("glx: Fix visual fbconfig matching with respect to
                      swap method")
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=102806
Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Tested-By: Nick Sarnie <commendsarnex@gmail.com>
Tested-by: Fredrik Höglund <fredrik@kde.org>
Reviewed-by: Adam Jackson <ajax@redhat.com>
2017-11-03 15:29:06 -04:00
composite Use ARRAY_SIZE all over the tree 2017-10-30 13:45:20 -04:00
config config/udev: consider ID_INPUT_FOO=0 as 'unset' 2017-11-01 09:54:08 +10:00
damageext Use ARRAY_SIZE all over the tree 2017-10-30 13:45:20 -04:00
dbe dbe: Unvalidated variable-length request in ProcDbeGetVisualInfo (CVE-2017-12177) 2017-10-10 23:33:44 +02:00
dix Use ARRAY_SIZE all over the tree 2017-10-30 13:45:20 -04:00
doc Rewrite the byte swapping macros. 2017-04-25 15:01:23 -07:00
dri3 Build: Use dri3proto/libdrm CFLAGS 2017-09-20 13:25:46 -04:00
exa Add a Meson build system alongside autotools. 2017-04-26 15:25:27 -07:00
fb fb: Check whether the window is enabled directly 2017-09-13 11:10:56 -04:00
glamor Use ARRAY_SIZE all over the tree 2017-10-30 13:45:20 -04:00
glx glx: Duplicate relevant fbconfigs for compositing visuals 2017-11-03 15:29:06 -04:00
hw Use ARRAY_SIZE all over the tree 2017-10-30 13:45:20 -04:00
include modesetting: Fix potential buffer overflow 2017-10-30 13:44:34 -04:00
m4 Add ax_pthread.m4 to m4/ 2016-05-29 19:20:51 -07:00
man Xserver.man: document more transports for -nolisten & -listen options 2015-10-28 14:16:28 -04:00
mi misprite: Clean up some preprocessor abuse 2017-05-18 16:59:02 -04:00
miext sync: Clean up a bit of header formatting. 2017-09-20 13:19:27 -04:00
os Use ARRAY_SIZE all over the tree 2017-10-30 13:45:20 -04:00
present present: Check the whole exec queue on event 2017-10-04 15:22:04 -04:00
pseudoramiX Unvalidated lengths 2017-10-10 23:33:34 +02:00
randr Make PixmapDirtyUpdateRec::src a DrawablePtr 2017-08-15 17:01:39 +09:00
record Add a Meson build system alongside autotools. 2017-04-26 15:25:27 -07:00
render Use ARRAY_SIZE all over the tree 2017-10-30 13:45:20 -04:00
test test: Add a test for the overflow bug in bigreqs. 2017-11-01 10:29:00 +10:00
Xext Use ARRAY_SIZE all over the tree 2017-10-30 13:45:20 -04:00
xfixes Use ARRAY_SIZE all over the tree 2017-10-30 13:45:20 -04:00
Xi Use ARRAY_SIZE all over the tree 2017-10-30 13:45:20 -04:00
xkb xkb: Print the xkbcomp path being executed when we fail to compile. 2017-11-01 10:38:27 +10:00
.appveyor.yml Add an .appveyor.yml for AppVeyor CI 2017-09-18 13:00:59 -04:00
.dir-locals.el Add .dir-locals.el 2013-08-17 12:17:36 +02:00
.gitignore .gitignore: Add new autotools file 'test-driver' 2014-04-21 13:41:42 -07:00
.travis.yml travis: Bump linux Dockerfile to v7 for new meson 2017-10-24 10:55:53 -04:00
autogen.sh autogen: Set a default subject prefix for patches 2016-02-08 17:41:38 -05:00
configure.ac Build: Use dri3proto/libdrm CFLAGS 2017-09-20 13:25:46 -04:00
COPYING modesetting: Merge modesetting's COPYING into the xserver's. 2014-09-15 12:46:02 -07:00
devbook.am doc: Create a script to filter xmlto output 2015-01-05 14:24:06 -08:00
docbook.am docbook.am: embed css styles inside the HTML HEAD element 2011-09-21 14:07:49 -07:00
fix-miregion Change region implementation names to eliminate the 'mi' prefix 2010-06-05 17:47:32 -07:00
fix-miregion-private Change region implementation names to eliminate the 'mi' prefix 2010-06-05 17:47:32 -07:00
fix-patch-whitespace Rename region macros to eliminate screen argument 2010-06-05 18:59:00 -07:00
fix-region Rename region macros to eliminate screen argument 2010-06-05 18:59:00 -07:00
Makefile.am automake: Add hw/xfree86/xkb/meson.build to EXTRA_DIST 2017-06-29 13:57:37 -04:00
manpages.am xorg: Change __XCONFIGFILE__ to XCONFIGFILE (and DIR) to fix scan.c. 2017-04-25 15:01:23 -07:00
meson_options.txt meson: Use [ true, false, auto ] for tristate values 2017-10-25 09:46:12 -04:00
meson.build meson: Use [ true, false, auto ] for tristate values 2017-10-25 09:46:12 -04:00
README README: Add link to fd.o CoC 2017-04-11 08:51:34 -04:00
xorg-server.m4 macros: clarify documentation 2012-11-05 13:24:57 -06:00
xorg-server.pc.in xfree86: link modules against Xorg symbols on Cygwin 2012-04-05 21:57:07 -05:00
xserver.ent.in doc: relocate xserver.ent in the package root directory 2011-05-14 11:22:26 -07:00

					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:
https://en.wikipedia.org/wiki/X_server

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