208e292df1
This (now) doesn't change anything in regards to the API that the UI thread should access from the MetaSeatImpl. The MetaInputDeviceNative, MetaInputSettings and MetaKeymap objects are now considered owned by the input thread, as well as all of libinput objects. The MetaEventSource now dispatches events in a GMainContext that is the thread default to this thread, and all UI-thread-accessible API (seat and virtual input device API) will be handled in a serialized manner by that same input thread. The MetaSeatImpl itself is still considered to be owned by the caller thread, and all the signals that this object emits will be emitted in the GMainContext that is default at the time of calling meta_seat_impl_new(). The MetaInputSettings configuration changes will likewise be handled in the input thread, close to libinput devices. https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1403
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.