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Jon Turney 2afee831a4 hw/xwin: Add an option to use alpha channel in multiwindow mode 
Add an option to turn on the use of the X window's alpha channel in
multiwindow mode, i.e. this uses the X window's alpha channel for
compositing into the native desktop.

This works on W7/Vista (using DwmEnableBlurBehindWindow()), and Windows
10 (using the undocumented SetWindowCompositionAttribute()), but not on
Windows 8/8.1

-compositewm must be enabled for this to be useful, as we only have a
pixmap with an alpha channel for the X window in that case.  The
framebuffer/root window doesn't have one (unless perhaps you are using
the rootless extension, maybe...).

v2:
Update meson.build

Future work:

A window property to control use of alpha?
Option to turn off blur on W7/Vista
Implement _NET_WM_WINDOW_OPACITY
2019-06-17 21:56:35 +00:00
.gitlab-ci gitlab-ci: Build and install a current version of rendercheck. 2019-03-28 13:55:22 -07:00
composite assert(a && b) --> assert(a); assert(b) 2019-05-02 15:02:36 -07:00
config config/udev: Include header <sys/sysmacros.h> to use major/minor 2018-11-14 10:26:48 -05:00
damageext Use ARRAY_SIZE all over the tree 2017-10-30 13:45:20 -04:00
dbe meson: Distribute more SDK headers 2018-04-02 13:42:08 -04:00
dix assert(a && b) --> assert(a); assert(b) 2019-05-02 15:02:36 -07:00
doc hw/xwin: Add an option to use alpha channel in multiwindow mode 2019-06-17 21:56:35 +00:00
dri3 dri3: Fix XACE access mode for open and get_supported_modifiers 2019-01-16 20:05:43 +00:00
exa assert(a && b) --> assert(a); assert(b) 2019-05-02 15:02:36 -07:00
fb fboverlay: move bpp checks above malloc 2018-09-12 12:26:48 +10:00
glamor glamor: Make pixmap exportable from gbm_bo_from_pixmap() 2019-05-29 17:18:32 +00:00
glx GLX: Set GlxServerExports::{major,minor}Version 2019-05-21 10:50:42 -07:00
hw hw/xwin: Add an option to use alpha channel in multiwindow mode 2019-06-17 21:56:35 +00:00
include os: Ensure sigset_t is provided when compiling for MinGW 2019-05-18 14:59:38 +00:00
m4 Add ax_pthread.m4 to m4/ 2016-05-29 19:20:51 -07:00
man os: add support for systemd notification 2019-05-07 09:01:47 +03:00
mi mi: Provide ffs when compiling using MinGW 2019-05-18 14:59:38 +00:00
miext meson: Build rootless extension 2019-05-02 15:42:58 +00:00
os configure: Check for sigprocmask 2019-05-18 14:59:38 +00:00
present present: Call present_vblank_scrap in screen mode 2019-03-29 10:55:31 +01:00
pseudoramiX Unvalidated lengths 2017-10-10 23:33:34 +02:00
randr randr: rrCheckPixmapBounding should only increase screen size 2018-08-24 09:55:48 +02:00
record assert(a && b) --> assert(a); assert(b) 2019-05-02 15:02:36 -07:00
render animcur: Fix crash when removing a master device 2018-04-24 14:28:27 -04:00
test assert(a && b) --> assert(a); assert(b) 2019-05-02 15:02:36 -07:00
Xext xsync: Add resource inside of SyncCreate, export SyncCreate 2019-04-17 14:01:17 -07:00
xfixes xfixes: Restore monitoring of animated cursors 2018-02-14 13:52:45 -05:00
Xi Xi: return AlreadyGrabbed for key grabs > 255 2019-06-12 16:58:53 +00:00
xkb xkb: Write the _XKB_RULES_NAMES window property synchronously 2018-11-13 10:36:18 -05:00
.appveyor.yml hw/xwin: A simpleminded attempt at composition 2019-06-17 21:56:35 +00:00
.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
.gitlab-ci.yml gitlab-ci: Retry jobs after runner system failures 2019-04-01 16:38:04 +02:00
.travis.yml travis: Add OSX meson build to matrix 2019-05-02 15:42:58 +00:00
autogen.sh autogen: Set a default subject prefix for patches 2016-02-08 17:41:38 -05:00
buildDateTime.h.in Promote file containing date & time build was configured to top-level 2019-05-02 15:42:58 +00:00
buildDateTime.sh Promote file containing date & time build was configured to top-level 2019-05-02 15:42:58 +00:00
configure.ac hw/xwin: A simpleminded attempt at composition 2019-06-17 21:56:35 +00:00
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
Makefile.am Promote file containing date & time build was configured to top-level 2019-05-02 15:42:58 +00:00
manpages.am man: Fix automake seddery 2018-05-08 12:15:30 -04:00
meson_options.txt meson: Convert xquartz from autotools 2019-05-02 15:42:58 +00:00
meson.build meson: Convert xquartz from autotools 2019-05-02 15:42:58 +00:00
README.md Update README for gitlab migration 2018-11-25 20:55:11 +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

README.md

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 master 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