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This allows for easily testing a compositor's damage tracking in all currently available configurations including wl_surface.buffer_transform, wl_surface.buffer_scale, and wl_viewport. It also includes a --rotating-damage that flag instructs the client to change the wl_surface.buffer_transform on every commit. This tests the compositor for proper handling of texture uploads even when the transform has changed but the buffer size hasn't.
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 building weston and its dependencies. The test suite can be invoked via `make check`; see http://wayland.freedesktop.org/testing.html for additional details.