https://bugzilla.gnome.org/show_bug.cgi?id=763350
Emmanuele Bassi (:ebassi) <[email protected]> changed:
What |Removed |Added
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--- Comment #16 from Emmanuele Bassi (:ebassi) <[email protected]> ---
(In reply to Christian Hergert from comment #15)
> cogl-winsys-egl-kms.c specifies a page_flip drm event handler, but not
> vblank_handler (which is what weston uses).
>
> Even if we add this handler, I'm not sure we have the proper API to
> propagate it in the same fashion back to the calling API in Mutter (who is
> waiting for callbacks via the CoglOnscreen).
The usual way to achieve this is to populate the CoglFrameInfo on page flip;
the frame info timing can then be used by higher layers, like Mutter. This is
what already happens with Cogl using the GLX winsys.
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