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A repository that has original sources for patches used in the Arch User Repository package called "mutter-performance". https://aur.archlinux.org/packages/mutter-performance
31950 commits 11 branches 1 tag 99 MiB
C 98.7%
Meson 0.8%
Python 0.4%
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Daniel van Vugt 09fa9d14d9 clutter/frame-clock: Lower the threshold for disabling error diffusion 
Error diffusion was introduced in 0555a5bbc1 for Nvidia where last
presentation time is always unknown (zero). Dispatch times would drift
apart always being a fraction of a frame late, and accumulated to cause
periodic frame skips. So error diffusion corrected that precisely and
avoided the skips.

That works great with double buffering but less great with triple
buffering. It's certainly still needed with triple buffering but
correcting for a lateness of many milliseconds isn't a good idea. That's
because a dispatch being that late is not due to main loop jitter but due
to Nvidia's swap buffers blocking when the queue is full. So scheduling
the next frame even earlier using last_dispatch_lateness_us would just
perpetuate the problem of swap buffers blocking for too long.

So now we lower the threshold of when error diffusion gets disabled. It's
still high enough to fix the original smoothness problem it was for, but
now low enough to detect Nvidia's occasionally blocking swaps and backs
off in that case.

Since the average duration of a blocking swap is half a frame interval
and we want to distinguish between that and sub-millisecond jitter, the
logical threshold is halfway again: refresh_interval_us/4.
2024-08-06 14:08:28 +08:00
.gitlab/issue_templates gitlab: Add missing < in markdown comment tag 2020-02-14 03:10:28 +00:00
.gitlab-ci ci: Use meson introspect to generate artifact path 2024-05-25 17:04:46 +02:00
clutter clutter/frame-clock: Lower the threshold for disabling error diffusion 2024-08-06 14:08:28 +08:00
cogl cogl/onscreen: Indent declaration parameters to align with above/below 2024-08-06 14:08:28 +08:00
data build: Compile schemas locally for use in build tests 2024-06-25 17:32:25 +08:00
doc clutter/frame-clock: Add a state for when scheduled "now" 2024-02-10 16:16:19 +00:00
meson build: Replace custom post-install script 2022-11-19 02:21:05 +01:00
mtk mtk/rectangle: Add auto-cleanup integration 2024-04-15 16:48:04 +00:00
po Update Chinese (Taiwan) translation 2024-07-27 07:38:16 +00:00
src renderer/native: Discard pending swaps when rebuilding views 2024-08-06 14:08:28 +08:00
subprojects docs: Prefer using gi-docgen from a subproject 2024-02-09 12:29:50 +00:00
tools tools/uncrustify: Fix invalid align_nl_cont value 2024-03-12 12:48:20 +10:00
.gitignore misc: Add common noisy dirs to gitignore 2024-01-08 19:53:57 +01:00
.gitlab-ci.yml ci: Hook up release-module 2024-05-25 17:04:46 +02:00
check-style.py check-style: Force the default prefix in git diff 2024-03-12 12:47:56 +10:00
config.h.meson wayland: Add MetaDrmTimeline 2024-03-28 13:27:42 -04:00
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 Bump version to 46.4 2024-08-04 17:36:56 +02:00
meson_options.txt meson: Make libdisplay_info a feature option 2024-02-14 11:37:21 +00:00
mutter.doap DOAP: Remove defunct mailing list; add Discourse 2023-09-15 03:19:22 +02:00
NEWS Bump version to 46.4 2024-08-04 17:36:56 +02:00
README.md misc: Use the new mutter.gnome.org URL 2024-01-12 10:48:20 +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

License

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