92710d8f89
Fix a regression that got introduced with c483b52d240136cf49b358cde2c0d2c0ed237e51 where we started passing the redraw_clip to paint_stage() instead of creating a temporary view_region for unclipped redraws: In case we detect an invalid buffer age, we fall back to doing an unclipped redraw after we passed the first check setting up may_use_clipped_redraw. That means we didn't reset the redraw_clip to the view_rect, and we're now going to redraw the stage using the original redraw clip even though we're swapping the full framebuffer without damage. To fix that, check for the buffer age before setting up the fb_clip_region and the redraw_clip and set may_use_clipped_redraw to FALSE if the buffer age is invalid, too. This ensures the redraw_clip is always going to be correctly set to the view rect when we want to force a full redraw. Fixes https://gitlab.gnome.org/GNOME/mutter/issues/1128
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.