With the next GNOME 3.4 development release due out on Wednesday, several GNOME3 packages are being checked-in for release. In this latest round of updates, Clutter and Cogl have both been updated again to take better advantage of the Wayland Display Server
The Clutter/Cogl duo have been getting on with support for Wayland
going back a number of months. Just last month Clutter was updated against Wayland master
so that this tool-kit -- also sponsored by Intel -- would be running against the newest Wayland Display Server code. The Clutter-on-Wayland support has gone quite far. With the release of Clutter 1.9.4 and Cogl 1.9.4, things are even further.
With the release of Clutter 1.9.4
, "The wayland backend now tracks the latest API changes in the client API, and Clutter now provides a Wayland surface actor that allows to write Wayland compositors, similarly to the X11TexturePixmap actor for the X11 backend." Clutter 1.9.4 also features a new scene graph API in ClutterActor, a layout manager update, and a ClutterTextBuffer class.
Cogl, the 3D graphics direct-state-access API used by Clutter that's built on OpenGL / OpenGL ES, has a few improvements of its own with the 1.9.4 release
. Cogl's client-side Wayland support has been updated, the Cogl compositor-side Wayland support has been updated, and the example "Cogland" Cogl-Wayland compositor has been updated. There's also a few other related and interesting changes in this Cogl 1.9.4 development snapshot:
- A basic Linux KMS back-end has been added that works directly off the DRM interfaces for kernel mode-setting. This allows full-screen Cogl applications to work without X11 (or Wayland) under Linux but is tapping KMS directly.
- EGL platforms are now selected at run-time rather than being part of one monolithic back-end.
- A "CoglSnippets" experimental API has been added. This new API, which has been a long time coming, is meant to simplify how portions of GL Shading Language (GLSL) code can be integrated into the rendering pipeline.
- An SDL window system back-end has been added to Cogl. This makes a portable and easy way to toy around with Cogl as a standalone graphics API with basic input support provided by the Simple DirectMedia Layer (SDL).
Lots of good stuff happening in the Clutter-land, plus the other work happening within the Enlightenment
, and GTK+