e67858b9cf
Implement the basic protocol for sub-surfaces: - expose wl_subcompositor global interface - error checking on protocol calls - associate a parent wl_surface to a sub-surface - introduce the sub-surface role, which is exclusive - an implementation of the wl_subsurface interface - allow nesting of sub-surfaces - proper surface transformation inheritance from parent to sub-surfaces - two different modes of wl_surface.commit for sub-surfaces - hook sub-surfaces up to repaint by modifying the repaint list code Struct weston_subsurface is dynamically allocated. For sub-surfaces, it is completely populated. For parent surfaces, weston_subsurface acts only as a link for stacking order purposes. The wl_resource is unused, parent_destroy_listener is not registered, the transform is not linked, etc. Sub-surfaces are not added directly into layers for display or input. Instead, they are hooked up via the sub-surface list present in parent weston_surface. This way sub-surfaces are inherently linked to the parent surface, and cannot be displayed unless the parent is mapped, too. This also eases restacking, as only the parent will be in a layer list. Also, only the main surface should be subject to shell actions. The surface list rebuilding in weston_output_repaint() is modified to process sub-surface lists, if they are non-empty. The sub-surface list always contains the parent, too, unless empty. The collection of frame_callback_list is moved to a later loop, to streamline the surface list rebuild functions. Features still lacking are: - full-surface alpha support for compound windows Changes in v2: - fix a bug in surface mapping: commit a sub-surface would cause the main surface to never be mapped. - remove debug printfs - detect attempt of making a surface its own parent - always zero-alloc weston_subsurface - apply wl_subsurface.set_position in commit, not immediately - add weston_surface_to_subsurface() - implement sub-surface commit modes parent-cached and independent - implement wl_subcompositor.destroy and wl_subsurface.destroy Changes in v3: - rebased, and use the new transform inheritance code - squashed the commit "add sub-surfaces to repaint list" - fixed a buffer reference leak in commit_from_cache() - Rewrite the sub-surface destructor code, and make it leave the wl_subsurface protocol object inert, if one destroys the corresponding wl_surface. - replaced set_commit_mode with set_sync and set_desync - allowed sub-surface nesting, and fixed repaint accordingly - implemented nested sub-surface commit modes - Made the sub-surface order changes from wl_subsurface.place_above and .place_below to be applied when the parent surface state is applied, instead of immediately. This conforms with the protocol specification now. Signed-off-by: Pekka Paalanen <ppaalanen@gmail.com> |
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| clients | ||
| data | ||
| man | ||
| protocol | ||
| shared | ||
| src | ||
| tests | ||
| wcap | ||
| .gitignore | ||
| autogen.sh | ||
| configure.ac | ||
| COPYING | ||
| Makefile.am | ||
| notes.txt | ||
| README | ||
| weston.ini | ||
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.