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A repository that has original source for patches used in the Arch User Repository package called "mutter-performance". https://aur.archlinux.org/packages/mutter-performance
32411 commits 14 branches 4 tags 92 MiB
C 98.7%
Meson 0.8%
Python 0.4%
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Jonas Ådahl 8e2587c197 kms: Don't disarm deadline timer when compositing 
If we finish compositing in time, the composited result will be
submitted prior to the deadline timer is triggered, and we'll be fine,
and if not, at least the cursor updates will be smooth, which makes it
appear smoother than not.

There is a risk that this can negatively impact composited updates when
moving the cursor, so make it possible to toggle a paint-debug flag for
now until this has been more tested.

This also mean we need to disarm the deadline timer after handling
update, as there might be a scheduled cursor update pending, but we
already handled it, so disarm the timer.

Here is an illustration of the difference.

In the following scenario, with disarming, the composited frame E, and
the cursor movement C gets presented. With this branch, only the cursor
movement C gets presented.
```
 * A: beginning of composited frame
 * B: begin notification reaches KMS thread
 * C: cursor moved
 * D: calculated deadline dispatch time (disabled with the branch)
 * E: KMS update posted
 * F: KMS update reaches KMS thread
 * G: actual deadline (and with branch and gets committed)
Compositor thread: --------A---------------E---------
                            \               \
                             \               \
KMS thread:        -----------B------C----D---F-G----
```

In the following scenario, by not disarming, the cursor update C will be
presented, and the would-be-delayed composited frame E would be delayed
anyway, i.e. fixing cursor stutter.
```
 * A: beginning of composited frame
 * B: begin notification reaches KMS thread
 * C: cursor moved
 * D: calculated deadline dispatch time (and with branch will be dispatched)
 * E: KMS update posted
 * F: actual deadline
 * G: KMS update reaches KMS thread (and with branch gets postponed)
Compositor thread: --------A---------------E---------
                            \               \
                             \               \
KMS thread:        -----------B------C----D-F-G------
```

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/3184>
2024-08-13 10:09:05 +00:00
.gitlab/issue_templates gitlab: Add missing < in markdown comment tag 2020-02-14 03:10:28 +00:00
.gitlab-ci ci: Update gsettings-desktop-schemas check 2024-08-09 08:29:21 +00:00
clutter renderer-view/native: Update deadline evasion each frame 2024-08-13 10:09:05 +00:00
cogl cogl: Update latest sync fd also from cogl_gl_framebuffer_flush/finish 2024-08-13 09:52:34 +00:00
data service-channel: Add client type for filechooser portal 2024-08-06 16:07:48 +00:00
doc cally: Merge inside Clutter 2024-08-07 22:46:16 +00:00
meson build: Replace custom post-install script 2022-11-19 02:21:05 +01:00
mtk mtk: Move meta_rectangle_transform to Mtk 2024-08-09 15:51:36 +00:00
po Update Romanian translation 2024-08-11 11:28:52 +00:00
src kms: Don't disarm deadline timer when compositing 2024-08-13 10:09:05 +00:00
subprojects docs: Prefer using gi-docgen from a subproject 2024-02-09 12:29:50 +00:00
tools tools/debug-control: Handle the service not being exported 2024-07-24 21:52:47 +00:00
.editorconfig Add editorconfig file 2024-05-21 09:09:11 +00:00
.gitignore misc: Add common noisy dirs to gitignore 2024-01-08 19:53:57 +01:00
.gitlab-ci.yml ci: Downgrade libX11 to avoid a bug in teardown 2024-08-09 08:29:21 +00:00
check-style.py check-style: Force the default prefix in git diff 2024-03-12 12:47:56 +10:00
config.h.meson backend/native: Define struct drm_plane_size_hint only if libdrm doesn't 2024-07-02 14:09:21 +00:00
COPYING Updated obsolete FSF postal address in COPYING 2014-01-12 08:44:30 +07:00
logo.svg docs: Add a logo 2024-01-09 13:38:54 +00:00
meson.build build: Bump gsettings-desktop-schemas requirement 2024-08-09 08:29:21 +00:00
meson_options.txt build: Add a X11 option 2024-06-27 16:31:56 +02:00
mutter.doap doap: Remove marge-bot maintainer entry 2024-08-13 08:48:28 +00:00
NEWS Bump version to 47.beta 2024-08-03 19:23:22 +02:00
README.md cally: Merge inside Clutter 2024-08-07 22:46:16 +00:00

README.md

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 of 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.

It can be useful to first look at the GNOME Handbook and the documentation and API references below first.

Documentation

API Reference

Meetings

There are recurring meetings to discuss development of GNOME Shell, mutter and related components.

License

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