Ander Conselvan de Oliveira
434e8f3ae1
On the first frame with zoom activated, the spring used for animation will have a current value of zero. The translation calculated with that value will be invalid (not a number). Using this value later leads to having an invalid output matrix, so nothing is composited in the first zoomed frame. This problem is most evident when a sprite plane is being used. In that case, enabling the zoom will cause the surface to be moved back to the primary plane, but because of the bug described above, this surface would not actually be rendered causing a quick flicker.
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.