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Re: Vertical refresh and tearing...


From: Lundberg, Johannes
Subject: Re: Vertical refresh and tearing...
Date: Thu, 9 Jan 2014 21:43:58 +0900

Can't you as an application choose if you want to render synchronized with vertical refresh or not?

--
Johannes Lundberg
BRILLIANTSERVICE CO., LTD.


On Thu, Jan 9, 2014 at 9:25 PM, Luboš Doležel <address@hidden> wrote:
I believe that vsync is typically controlled by X driver's settings. It is not application's responsibility to make such decisions.

Luboš


On Thu, 9 Jan 2014 21:07:46 +0900, Lundberg, Johannes wrote:
Hi

Yeah it is something I made myself and something I can not share. If
I have some time I could write a short program that would demonstrate
the tearing but I'm rather busy now so that is not so likely I think..
However, I think the person who wrote the backend should be able to
answer the question easy..

Actually it is almost oyasumi (bed time) :)

--Johannes Lundberg
BRILLIANTSERVICE CO., LTD.

On Thu, Jan 9, 2014 at 9:02 PM, a b  wrote:

I am new to this group so I will not attempt to answer your
question. I have a question
for you:

Is the application something you downloaded from the GNUstep
website? If so,
could you say which application it is so that others could look at
at in order to see
the effect you are observing?

If it is something you wrote, would you be able to share a short
example demo
which would allow others to determine what is causing the problem?

ohayo or konichiwa as the case may be (please excuse the spelling,
if incorrect)

-------------------------
From: address@hiddenjp [1]

Date: Thu, 9 Jan 2014 20:25:04 +0900
Subject: Vertical refresh and tearing...
To: address@hidden [2]


Hi

Currently it does not seem like rendering is synchronized with
vertical refresh. Both my OpenGL (NSOpenGLView) app and a app using
animated NSView has a lot of tearing (on FreeBSD with cairo
backend).

Has anyone similar experiences or insight in what would be required
to get rid of the tearing? Is it simply a matter of making
additions
to the code in the backend?

Best regards

--Johannes Lundberg

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--
Luboš Doležel


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