8ea818fb00
This is a more generic fix for the issue solved in 4f521731 where damage obscured by overlays could be lost in one of the output buffers due to rapid move of a surface in an overlay plane. This changes the renderer so it keeps track of the damage in each buffer. Every time a new frame is drawn, the damage of the frame is added to all the buffers and the rendered regions are cleared from the current buffer's damage.
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.