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Pekka Paalanen 8a0d0ce987 crtc/kms: Add fallback primary plane formats 
This avoids having to hardcode the same fallbacks elsewhere multiple
times when determining what formats might be suitable for a set of
CRTCs. The formats_modifiers hash table is now guaranteed to be
populated with at least something, so future code will not need to
handle it being empty.

The hardcoded fallback formats are a minimal set probably supported by
most hardware. XRGB8888 is the format that, according to ancient lore,
all DRM devices should support, especially if they don't have the
capability to advertise otherwise. Mutter also hardcodes XRGB8888 as the
GBM surface format, so it is already required on primary GPUs.

XBGR8888 matches the most common OpenGL format, sans alpha channel since
scanout hardware has not traditionally supported alpha. XBGR8888 is here
also because Mutter hardcodes that format for secondary GPU outputs when
using the CPU copy path.

https://gitlab.gnome.org/GNOME/mutter/merge_requests/341
2019-01-30 12:53:20 +00:00
.gitlab-ci cogl/path: Don't depend on GL/glu.h 2019-01-22 19:06:14 +01:00
clutter clutter/evdev: Set the backend keymap before using it 2019-01-30 11:27:57 +01:00
cogl cogl: Fix builds with G_DISABLE_ASSERT 2019-01-25 00:48:12 +01:00
data Drop Autotools 2019-01-10 11:50:54 -02:00
doc Remove obsolete .cvsignore files 2019-01-10 11:50:54 -02:00
po Remove po/ChangeLog 2019-01-12 14:53:13 +01:00
src crtc/kms: Add fallback primary plane formats 2019-01-30 12:53:20 +00:00
tools tools: Remove obsolete ppa-magic.py 2018-11-30 11:12:12 +08:00
.gitignore project: Update gitignore 2019-01-10 11:50:54 -02:00
.gitlab-ci.yml gitlab-ci.yml: Change build step build type to debugoptimized 2019-01-23 21:05:51 +00:00
config.h.meson build: Make libcanberra no longer optional 2019-01-08 15:58:11 +01:00
COPYING Updated obsolete FSF postal address in COPYING 2014-01-12 08:44:30 +07:00
meson_options.txt build: Make libcanberra no longer optional 2019-01-08 15:58:11 +01:00
meson.build meson: Hide symbols by default in clutter 2019-01-23 13:03:40 +00:00
mutter.doap Replace Bugzilla by Gitlab URL in DOAP file 2018-12-15 23:50:01 +01:00
NEWS Bump version to 3.31.4 2019-01-10 20:07:55 +01:00
README.md README: Mention usage by Gala 2018-11-08 17:11:27 +01:00

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.

License

Mutter is distributed under the terms of the GNU General Public License, version 2 or later. See the COPYING file for detalis.