[Xcb] How to handle sync request?

[Марк Лаго́дич]

*> Well... Марк, are these guesses right?*
Yes, that's right.

I was trying to make window resizing in my program just as smooth as in GTK
programs.
So far I have this:
https://github.com/MarkLagodych/xcb-opengl-simple-program
(based on Qt4 source code:
https://dreamswork.github.io/qt4/qxcbwindow_8cpp_source.html#l00563)
My program uses OpenGL with GLX (sorry, forgot to mention that).
I've been playing with my code for a while and it looks like resizing is
smooth now, however I'm still not sure whether the code is correct.
Could you tell me, please, if I'm handling the _NET_WM_SYNC_REQUEST and
drawing correctly?
Is the order of updating the synchronization counter and painting the
window right?


пн, 6 июн. 2022 г. в 12:44, Uli Schlachter <psychon at znc.in>:

> Hi,
>
> Am 06.06.22 um 11:20 schrieb Diego Cortez:
> > Most likely:
> https://xcb.freedesktop.org/manual/group__XCB__Sync__API.html
>
> yeah, well, that's the API docs for the Sync extension. Its protocol
> reference can be found here:
>
> https://www.x.org/releases/X11R7.7/doc/xextproto/sync.html
>
> However, that extension is implemented by the X11 server. Clients can
> use it to implement other specs. Actually... I only know one such thing:
> EWMH's _NET_WM_SYNC_REQUEST:
>
> https://specifications.freedesktop.org/wm-spec/wm-spec-latest.html#idm45446104324656
>
> Well... Марк, are these guesses right? What did you implement so far? Is
> this code online/public somewhere? What does "but did not succeed" mean
> exactly?
>
> Cheers,
> Uli
> --
> I'd be delighted to offer any advice I can. When I have some, I'll let
> you know.
>
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