3738579dd3
Previously, the clipping rectangle passed to `meta_surface_actor_get_image()` was updated with the actual texture size, but recent changes in `meta_shaped_texture_get_image()` now keep the caller's clipping rectangle unchanged. The implementation of `meta_window_actor_capture_into()` was relying on the old behavior of updating the passed clipping rectangle, but now that it's kept unchanged, the actual clipping rectangle used to copy the data is wrong, which causes either a distorded image or worse, a crash of mutter. Use the resulting cairo image size to copy the data instead of the clipping rectangle to avoid the issue and get the expected size. Fixes: https://gitlab.gnome.org/GNOME/mutter/issues/442
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.
License
Mutter is distributed under the terms of the GNU General Public License, version 2 or later. See the COPYING file for detalis.