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Pekka Paalanen aef0254dd5 window: implement shm triple-buffering
Increase the maximum number of shm "leaves" to three, and rewrite the
leaf release and pick algorithms. The new algorithms hopefully improve
on buffer re-use while freeing unused buffers.

The goal of the new release algorithm is to always leave one free leaf
with storage allocated, so that the next redraw could start straight on
it.

The new leaf picking algorithm will prefer a free leaf that already has
some storage allocated, instead of just picking the first free leaf that
may need to allocate a new buffer.

Triple-buffering is especially for sub-surfaces, where the compositor
may have one wl_buffer busy on screen, and another wl_buffer busy in the
sub-surface cached state due to the synchronized commit mode. To be
able to forcibly repaint at that situation for e.g. resize, we need a
third buffer.

Signed-off-by: Pekka Paalanen <ppaalanen@gmail.com>
2013-05-10 14:35:53 -04:00
clients window: implement shm triple-buffering 2013-05-10 14:35:53 -04:00
data window.c: frame_button: Maximize, minimize, close, icon buttons in window frame 2012-05-10 16:19:33 -04:00
man weston.ini: document background-type 2013-05-01 13:40:50 -04:00
protocol protocol: add sub-surfaces 2013-05-10 14:05:59 -04:00
shared Fix compiler warnings 2013-04-03 20:40:44 -04:00
src shell: account for the subsurfaces when going fullscreen or maximizing 2013-05-10 14:35:33 -04:00
tests tests: add sub-surface protocol tests 2013-05-10 14:32:58 -04:00
wcap wcap: Fix typo in usage output. 2012-07-23 14:25:14 -04:00
.gitignore gitignore: Ignore test-driver 2013-03-28 14:04:05 -04:00
autogen.sh Update autotools configuration 2010-11-06 21:04:03 -04:00
configure.ac Add initial color management framework code 2013-05-10 12:51:08 -04:00
COPYING Add COPYING 2012-04-25 10:17:42 -04:00
Makefile.am Makefile.am: Distribute weston.ini sample 2013-02-25 13:04:40 -05:00
notes.txt Add informal notes file 2012-10-25 15:00:42 -04:00
README Flesh out README a bit, link to building instructions 2012-07-20 12:26:23 -04:00
weston.ini Add initial color management framework code 2013-05-10 12:51:08 -04:00

Weston

Weston is the reference implementation of a Wayland compositor, and a
useful compositor in its own right.  Weston has various backends that
lets it run on Linux kernel modesetting and evdev input as well as
under X11.  Weston ships with a few example clients, from simple
clients that demonstrate certain aspects of the protocol to more
complete clients and a simplistic toolkit.  There is also a quite
capable terminal emulator (weston-terminal) and an toy/example desktop
shell.  Finally, weston also provides integration with the Xorg server
and can pull X clients into the Wayland desktop and act as a X window
manager.

Refer to http://wayland.freedesktop.org/building.html for buiding
weston and its dependencies.