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Jonas Dreßler 0fc39b2a87 Revert "wayland/surface: Add fallback for get_highest_output_scale" 
Turns out there is a better solution: Almost always, MetaWindow already has
an idea on which monitor it will be, even if it isn't positioned yet. Since
the last commit we're now using that monitor for setting the
highest-output-scale of the window, so this fallback is no longer necessary.

While we could keep this fallback around and also return a valid scale in
case the surface is not even mapped yet, this means we report fractional
scale twice for new surfaces: Once from
wp_fractional_scale_manager::get_fractional_scale() (here we'll enter the
fallback), and a second time (this time with correct scale) right after
creating the MetaWindow.

Note that wp_fractional_scale_v1 doesn't specify that a preferred_scale
event must be sent immediately after
wp_fractional_scale_manager::get_fractional_scale(), so we can safely remove
the fallback.

This reverts commit 8cfbdb4313.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/3598>
2024-02-21 12:19:02 +00:00
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clutter build: Remove the config.h inclusion from all public headers 2024-02-17 11:58:55 +00:00
cogl build: Remove the config.h inclusion from all public headers 2024-02-17 11:58:55 +00:00
data backends/native: Main thread rt-scheduler: experimental feature no more 2024-01-13 15:10:31 +01:00
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 gir: Remove unnused cairo include 2024-01-27 10:03:15 +00:00
po Update Slovenian translation 2024-02-18 16:40:58 +00:00
src Revert "wayland/surface: Add fallback for get_highest_output_scale" 2024-02-21 12:19:02 +00:00
subprojects docs: Prefer using gi-docgen from a subproject 2024-02-09 12:29:50 +00:00
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config.h.meson build: One config file to rule them all 2023-11-15 12:00:19 +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_options.txt meson: Make libdisplay_info a feature option 2024-02-14 11:37:21 +00:00
meson.build 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.beta 2024-02-11 15:51:16 +01:00
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.