6c3b01f81e
The zoom translation is just a scale and a translate. The translation is calculated based on the coordinates of the pointer which are in global space. Previously the calculated translation was transformed by the output transformation so that when the zoom transform is applied after the output transform then it will be correct. However if we just apply the zoom transformation first then we get the same result without the zoom code having to be aware of the output transformation. This also fixes weston_output_transform_coordinate which was applying the output and zoom transforms in the wrong order. https://bugs.freedesktop.org/show_bug.cgi?id=78211
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.