5a4ade857a
The port to use ClutterPaintNodes basically mirrors what
it currently does, with the major benefit of not depending
on cogl_get_draw_framebuffer() anymore.
There are various factors that influence the number of
subnodes:
* The background color adds a color subnode;
* The selection adds a clip subnode, and a color subnode,
or a color and a text subnode;
The simplest case is when the text does not overflow and
has no background color nor selection. In that case, the
render tree is simply:
[ Dummy ]
↓
[ Text ]
In contrast, the most complex case is when drawing the text
with selection, in which case the render tree looks like:
[ Dummy ]
↓
[ Clip ]
↓
[ Text ] → [ Clip ]
↓
[ Color ] → [ Text ]
Since the selection may have another text color, the selected
text must be rendered again, but clipped to only cover the
selection rectangle. This is suboptimal, but it's what the
current code already does anyway.
|
||
|---|---|---|
| clutter | ||
| cogl | ||
| data | ||
| doc | ||
| po | ||
| src | ||
| tools | ||
| .gitignore | ||
| autogen.sh | ||
| configure.ac | ||
| COPYING | ||
| Makefile.am | ||
| 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 GNOME Shell, the GNOME core user interface. 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.