If CreateDevice is called with hFocusWindow belonging to another thread,
then any code that does SendMessage (or equivalent) to the window while
holding the main wined3d mutex causes a deadlock, because wined3d_wndproc
tries to acquire the same mutex for wndproc_table access.

wined3d: Only bother checking block alignment for compressed surfaces in wined3d_device_update_surface().