08f47fee16
Right now we're checking for the DISABLE_CLIPPED_REDRAWS debug flag after creating the fb_clip_region and adjusting the redraw_clip. That means that if may_use_clipped_redraw was TRUE, the redraw_clip will still be set to the region and thus cause the stage to only be partially redrawn. Since we don't push a clip to the framebuffer though (use_clipped_redraw is now FALSE), parts of the view will get corrupted. To fix that, disable clipped redraws right away if the debug flag is set. This also allows removing the may_use_clipped_redraw bool and replacing it entirely with use_clipped_redraw. https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1113
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.