From mboxrd@z Thu Jan  1 00:00:00 1970
X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on polar.synack.me
X-Spam-Level: 
X-Spam-Status: No, score=-0.9 required=5.0 tests=BAYES_00,FORGED_GMAIL_RCVD,
	FREEMAIL_FROM autolearn=no autolearn_force=no version=3.4.4
X-Received: by 2002:aed:3aa3:: with SMTP id o32mr7371112qte.364.1589608268531;
        Fri, 15 May 2020 22:51:08 -0700 (PDT)
X-Received: by 2002:a4a:c30e:: with SMTP id c14mr5333471ooq.74.1589608268266;
 Fri, 15 May 2020 22:51:08 -0700 (PDT)
Path: 
 eternal-september.org!reader01.eternal-september.org!feeder.eternal-september.org!news.gegeweb.eu!gegeweb.org!usenet-fr.net!proxad.net!feeder1-2.proxad.net!209.85.160.216.MISMATCH!news-out.google.com!nntp.google.com!postnews.google.com!google-groups.googlegroups.com!not-for-mail
Newsgroups: comp.lang.ada
Date: Fri, 15 May 2020 22:51:07 -0700 (PDT)
In-Reply-To: <6d6c0f65-35f9-4fcd-8fb2-47dbc560cabc@googlegroups.com>
Complaints-To: groups-abuse@google.com
Injection-Info: google-groups.googlegroups.com; posting-host=80.114.173.191;
 posting-account=BtkjvAoAAADwEquGb07eykXfyiDMOxfl
NNTP-Posting-Host: 80.114.173.191
References: <705052ba-5cff-46af-a28c-1e25e60e2eef@googlegroups.com>
 <13f6fe0c-be41-4937-a877-457e1f8aca18@googlegroups.com>
 <6d6c0f65-35f9-4fcd-8fb2-47dbc560cabc@googlegroups.com>
User-Agent: G2/1.0
MIME-Version: 1.0
Message-ID: <a732a77f-5b75-4598-9af6-faf1cc16478e@googlegroups.com>
Subject: Re: Xlib, (GLX or EGL),
 OpenGL. Stuck at double buffering not working properly.
From: onox <denkpadje@gmail.com>
Injection-Date: Sat, 16 May 2020 05:51:08 +0000
Content-Type: text/plain; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable
Xref: reader01.eternal-september.org comp.lang.ada:58702
Date: 2020-05-15T22:51:07-07:00
List-Id: <comp.lang.ada>

On Friday, May 15, 2020 at 10:00:52 PM UTC+2, Olivier Henley wrote:
> > Also, I would like to have more control over the frame latency via accu=
rate frame presentation feedback (presentation-time Wayland protocol)
>=20
> Could you elaborate? I bought the Wayland online book and I am almost don=
e but never 'touched' any code yet. Do you mean that using Wayland, we can =
'drive' precise refresh presentation with guaranteed full-frames?

I meant that you can get feedback about when a frame was presented to the s=
creen so you can sync with the display refresh. See https://github.com/glfw=
/glfw/issues/1350#issuecomment-447534605. X11 has a similar extension calle=
d PresentCompleteNotify (see https://stackoverflow.com/questions/48424320/p=
recision-timing-of-gdk3-gtk3-window-update)