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Jonas Dreßler 0ba15df57c clutter/stage: Don't do newly queued relayouts after allocation cycle
While it's strongly discouraged, it is possible to queue a new relayout
of an actor in the middle of an allocation cycle, we warn about it but
don't forbid it.

With the introduction of the "shallow relayout" API, our handling of
those relayouts silently changed: Before introducing "shallow
relayouts", we'd handle them on the next stage update, but with the
priv->pending_relayouts hashtable and the
priv->pending_relayouts_version counter, we now do them immediately
during the same allocation cycle (the counter is increased by 1 when
queuing the relayout and we switch to a new GHashTableIter after
finishing the current relayout, which means we'll now do the newly
queued relayout).

This change in behavior was probably not intended and wasn't mentioned
in the commit message of 5257c6ecc2, so
switch back to the old behavior, which is more robust in preventing
allocation-loops. To do this, use a GSList instead of GHashTable for the
pending_relayouts list, and simply steal that list before doing the
relayouts in _clutter_stage_maybe_relayout().

https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1267
2020-06-16 09:39:43 +00:00
.gitlab/issue_templates gitlab: Add missing < in markdown comment tag 2020-02-14 03:10:28 +00:00
.gitlab-ci ci: Enable coverage reports in test build 2020-05-07 22:08:44 +00:00
clutter clutter/stage: Don't do newly queued relayouts after allocation cycle 2020-06-16 09:39:43 +00:00
cogl cogl/frame-info: Stop passing the CoglOutput 2020-06-05 21:39:27 +00:00
data display: Make check-alive timeout configureable 2020-02-23 17:28:57 +00:00
doc Add MetaGravity and replace X11 equivalent with it 2020-02-29 21:01:50 +00:00
meson build: Add postinstall script 2019-08-27 09:57:54 +00:00
po Update German translation 2020-04-24 22:38:04 +00:00
src window-actor-x11: switch the signal callback argument and data on shadow factory change 2020-06-15 13:22:08 +00:00
tools tools: Remove obsolete ppa-magic.py 2018-11-30 11:12:12 +08:00
.gitignore project: Update gitignore 2019-01-10 11:50:54 -02:00
.gitlab-ci.yml ci: Save built artifacts only for the test build 2020-05-07 22:08:44 +00:00
config.h.meson Add read-only anonymous file abstraction MetaAnonymousFile 2020-04-21 17:52:08 +02:00
COPYING Updated obsolete FSF postal address in COPYING 2014-01-12 08:44:30 +07:00
meson_options.txt meson_options: Use libGLESv2.so.2 for COGL_DRIVER=gles2, not libGLESv2.so 2020-06-09 18:32:01 +08:00
meson.build Bump version to 3.37.2 2020-06-03 01:11:15 +02:00
mutter.doap doap: Update list of maintainers 2019-10-16 12:33:47 +02:00
NEWS Bump version to 3.37.2 2020-06-03 01:11:15 +02:00
README.md README: Add contribution section 2019-02-14 15:38:46 +01:00

Mutter

Mutter is a Wayland display server and X11 window manager and compositor library.

When used as a Wayland display server, it runs on top of KMS and libinput. It implements the compositor side of the Wayland core protocol as well as various protocol extensions. It also has functionality related to running X11 applications using Xwayland.

When used on top of Xorg it acts as a X11 window manager and compositing manager.

It contains functionality related to, among other things, window management, window compositing, focus tracking, workspace management, keybindings and monitor configuration.

Internally it uses a fork of Cogl, a hardware acceleration abstraction library used to simplify usage of OpenGL pipelines, as well as a fork af Clutter, a scene graph and user interface toolkit.

Mutter is used by, for example, GNOME Shell, the GNOME core user interface, and by Gala, elementary OS's window manager. It can also be run standalone, using the command "mutter", but just running plain mutter is only intended for debugging purposes.

Contributing

To contribute, open merge requests at https://gitlab.gnome.org/GNOME/mutter.

The coding style used is primarily the GNU flavor of the GNOME coding style with some minor additions such as preferring stdint.h types over GLib fundamental types, and a soft 80 character line limit. However, in general, look at the file you're editing for inspiration.

Commit messages should follow the GNOME commit message guidelines. We require an URL to either an issue or a merge request in each commit.

License

Mutter is distributed under the terms of the GNU General Public License, version 2 or later. See the COPYING file for detalis.