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Enrico Weigelt, metux IT consult 3191eb529e (!1714) dix: add per-screen window destructor hook
Right now, extension specific window destruction procedures are implemented
by wrapping the ScreenRec's DestroyWindow() proc pointer: the extensions are
storing the original pointer in their private data and putting in their own one.
On each call, their proc restores the original one, calls it, and switches back
again. When multiple extensions doing so, they're forming a kind of daisy chain.
(the same is done for lots of other procs)

While that approach is looking nice and elegant on the drawing board, it's
complicated, dangerous like a chainsaw and makes debugging hard, leading to
pretty blurred API borders.

This commit introduces a simple approach for letting extension hook into the
window destruction safely, w/o having to care much about side effects with
the call chain. Extensions now can simply register their destructor proc
(and an opaque pointer) and get called back - w/o ever having to mess with
the ScreenRec's internal structures.

Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
2024-10-31 19:23:51 +01:00
.gitlab-ci CI: update meson from 0.56.2 (bullseye) to 1.0.0 (bullseye-backports) 2024-09-09 07:47:32 -07:00
Xext (!1675) Revert "xv: unexport XvScreenRec and XvScreenPtr" 2024-10-31 19:23:50 +01:00
Xi Xi: avoid NULL pointer dereference if GetXTestDevice returns NULL 2024-10-28 05:38:25 +00:00
composite (!1711) composite: use dixDestroyPixmap() instead of direct driver call 2024-10-31 19:23:50 +01:00
config drop obsolete HAVE_DIX_CONFIG_H 2024-10-10 13:38:31 +00:00
damageext drop obsolete HAVE_DIX_CONFIG_H 2024-10-10 13:38:31 +00:00
dbe (!1711) dbe: use dixDestroyPixmap() instead of direct driver call 2024-10-31 19:23:50 +01:00
dix (!1714) dix: add per-screen window destructor hook 2024-10-31 19:23:51 +01:00
doc (!1711) document that ScreenRec->DestroyPixmap() shouldn't be called directly 2024-10-31 19:23:49 +01:00
dri3 (!1711) dri3: use dixDestroyPixmap() instead of direct driver call 2024-10-31 19:23:50 +01:00
exa (!1711) exa: simplify CreatePixmap()/DestroyPixmap() handlers error pathes 2024-10-31 19:23:50 +01:00
fb (!1705) xwin: drop wrapping on ScreenRec->ModifyPixmapHeader() 2024-10-31 19:23:51 +01:00
glamor (!1711) glamor: use dixDestroyPixmap() instead of direct driver call 2024-10-31 19:23:50 +01:00
glx (!1711) glx: use dixDestroyPixmap() instead of direct driver call 2024-10-31 19:23:50 +01:00
hw (!1705) xwin: drop wrapping on ScreenRec->ModifyPixmapHeader() 2024-10-31 19:23:51 +01:00
include (!1714) dix: add per-screen window destructor hook 2024-10-31 19:23:51 +01:00
man Xserver.man: Note that -byteswappedclients is the default in this release 2024-03-23 10:27:03 -07:00
mi (!1711) mi: use dixDestroyPixmap() instead of direct driver call 2024-10-31 19:23:50 +01:00
miext (!1711) miext: use dixDestroyPixmap() instead of direct driver call 2024-10-31 19:23:50 +01:00
os dix: Use __builtin_popcountl if available to replace Ones() 2024-10-26 10:04:13 -07:00
present build: Move epoll dependency check 2024-09-02 11:52:26 +00:00
pseudoramiX pseudoramix: replace PseudoramiXTrace & PseudoramiXDebug by LogMessageVerb 2024-10-10 18:59:40 +00:00
randr (!1711) randr: use dixDestroyPixmap() instead of direct driver call 2024-10-31 19:23:50 +01:00
record drop obsolete HAVE_DIX_CONFIG_H 2024-10-10 13:38:31 +00:00
render (!1711) render: use dixDestroyPixmap() instead of direct driver call 2024-10-31 19:23:50 +01:00
test dix: unexport non-public functions from dixgrabs.h and document prototypes 2024-10-10 13:50:57 +00:00
xfixes drop obsolete HAVE_DIX_CONFIG_H 2024-10-10 13:38:31 +00:00
xkb xkb: Fix buffer overflow in _XkbSetCompatMap() 2024-10-29 14:41:59 +01:00
.appveyor.yml appveyor: Add libxcvt build dep 2021-11-04 13:03:25 +00:00
.dir-locals.el .dir-locals.el: Add missing final newline 2019-10-01 17:05:28 +00:00
.gitignore Clean up the .gitignore file 2024-01-12 00:50:24 +00:00
.gitlab-ci.yml ci: reduce nolibdecor build to xwayland only 2024-09-10 13:49:30 +02:00
.mailmap Add a .mailmap file to canonicalize author names and emails 2023-03-15 18:10:51 +00:00
.travis.yml travis: Add OSX meson build to matrix 2019-05-02 15:42:58 +00:00
COPYING modesetting: Merge modesetting's COPYING into the xserver's. 2014-09-15 12:46:02 -07:00
README.md Fix spelling/wording issues 2020-07-05 13:07:33 -07:00
meson.build meson: list required version of xproto headers in xorg-server.pc 2024-09-09 07:48:07 -07:00
meson_options.txt os: drop SUN-DES-1 authentication 2024-06-18 00:52:11 +00:00
xorg-server.m4 xorg-server.m4: just all cflags instead of just sdkdir 2018-09-20 20:12:24 +01:00
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

All questions regarding this software should be directed at the Xorg mailing list:

https://lists.freedesktop.org/mailman/listinfo/xorg

The primary development code repository can be found at:

https://gitlab.freedesktop.org/xorg/xserver

For patch submission instructions, see:

https://www.x.org/wiki/Development/Documentation/SubmittingPatches

As with other projects hosted on freedesktop.org, X.Org follows its Code of Conduct, based on the Contributor Covenant. Please conduct yourself in a respectful and civilized manner when using the above mailing lists, bug trackers, etc:

https://www.freedesktop.org/wiki/CodeOfConduct