Commit Graph

3 Commits

Author SHA1 Message Date
Robert Bragg
5d702853b8 glx backend: Adds support for GLX_INTEL_swap_event
If your OpenGL driver supports GLX_INTEL_swap_event that means when
glXSwapBuffers is called it returns immediatly and an XEvent is sent when
the actual swap has finished.

Clutter can use the events that notify swap completion as a means to
throttle rendering in the master clock without blocking the CPU and so it
should help improve the performance of CPU bound applications.
2010-02-09 22:19:41 +00:00
Emmanuele Bassi
6988744db7 [stage] Rework the Stage implementation class
Instead of using ClutterActor for the base class of the Stage
implementation we should extend the StageWindow interface with
the required bits (geometry, realization) and use a simple object
class.

This require a wee bit of changes across Backend, Stage and
StageWindow, even though it's mostly re-shuffling.

First of all, StageWindow should get new virtual functions:

  * geometry:
    - resize()
    - get_geometry()

  * realization
    - realize()
    - unrealize()

This covers all the bits that we use from ClutterActor currently
inside the stage implementations.

The ClutterBackend::create_stage() virtual function should create
a StageWindow, and not an Actor (it should always have been; the
fact that it returned an Actor was a leak of the black magic going
on underneath). Since we never guaranteed ABI compatibility for
the Backend class, this is not a problem.

Internally to ClutterStage we can finally drop the shenanigans of
setting/unsetting actor flags on the implementation: if the realization
succeeds, for instance, we set the REALIZED flag on the Stage and
we're done.

As an initial proof of concept, the X11 and GLX stage implementations
have been ported to the New World Order(tm) and show no regressions.
2009-09-08 10:52:58 +01:00
Emmanuele Bassi
f859135082 2008-04-04 Emmanuele Bassi <ebassi@openedhand.com>
Bug #864 - Allow instantiating and subclassing of ClutterStage

	* clutter/Makefile.am: Add clutter-stage-window.[ch]

	* clutter/clutter-stage-manager.c:
	(_clutter_stage_manager_remove_stage): Do not warn if removing
	a stage we don't manage, as we might be invoked multiple times
	during a ClutterState dispose sequence.

	* clutter/clutter-actor.c:
	* clutter/clutter-backend.[ch]:
	* clutter/clutter-main.c:
	* clutter/clutter-private.h:
	* clutter/clutter-stage.[ch]: Make ClutterStage a proxy actor,
	with a private actor implementing the ClutterStageWindow
	interface for handling the per-backend realization, painting
	and unrealization, plus all the windowing system abstraction.

	* clutter/x11/clutter-event-x11.c:
	* clutter/x11/clutter-stage-x11.[ch]: Port the X11 backend
	to the new backend and stage API and semantics.

	* clutter/glx/clutter-backend-glx.c:
	* clutter/glx/clutter-stage-glx.c: Port the GLX backend to
	the new backend and stage API and semantics.

	* clutter/eglx/clutter-backend-egl.[ch]:
	* clutter/eglx/clutter-stage-egl.[ch]: Port the EGLX backend
	to the new backend and stage API and semantics (untested).

	* tests/test-multistage.c (on_button_press): Rename
	clutter_stage_create_new() to clutter_stage_new().
2008-04-04 15:02:11 +00:00