3e68c9e8fa
ANGLE extensions are only provided by Google's Almost Native Graphics Layer Engine (ANGLE) implementation. Therefore they do not seem too useful for Mutter. The reason to drop GL_ANGLE_framebuffer_blit support is that it has more limitations compared to the glBlitFramebuffer in GL_EXT_framebuffer_blit, GL_NV_framebuffer_bit, OpenGL 3.0 and OpenGL ES 3.0. Most importantly, the ANGLE version cannot flip the image while copying, which limits _cogl_blit_framebuffer to only off-screen <-> off-screen copies. Follow-up work will need off-screen <-> on-screen copies. Instead of adding yet more capability flags to Cogl, dropping ANGLE support seems appropriate. The NV extension is added to the list of glBlitFramebuffer providers because it provides the same support as ANGLE and more. Likewise OpenGL ES 3.0 is added to the list of glBlitFramebuffer providers because e.g. Mesa GLES implementation usually provides it and that makes it widely available, again surpassing the ANGLE supported features. Follow-up patches will lift some of the Cogl assumptions of what glBlitFramebuffer cannot do. https://gitlab.gnome.org/GNOME/mutter/merge_requests/615 |
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| .gitlab-ci | ||
| clutter | ||
| cogl | ||
| data | ||
| doc | ||
| po | ||
| src | ||
| tools | ||
| .gitignore | ||
| .gitlab-ci.yml | ||
| config.h.meson | ||
| COPYING | ||
| meson_options.txt | ||
| meson.build | ||
| mutter.doap | ||
| NEWS | ||
| 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 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.