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List:       kde-devel
Subject:    Re: Animated Gif slows Konqueror down
From:       Simon Lindgren <simon () lindgren ! no>
Date:       2001-09-19 9:48:48
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On Tuesday 18 September 2001 00:48, Carsten Pfeiffer wrote:
> On Montag, 17. September 2001 19:35 Warren Turkal wrote:
> > I looked at this pic in pixie and animated it.  The pixie process was
> > using >70% of my processor to do that.  I have a 1Ghz system.  Is this
> > normal?
>
> This is due to the QMovie class in Qt. Maybe write a bugreport to the
> trolls about that.
>
> Cheers
> Carsten Pfeiffer

I reported this to the trolls, and got this reply from luke@trolltech.com:

>Looking at this gif in the gimp, its asking for an update every 0 
>milliseconds, and this is exactly what the QMovie class is doing. If you try 
>the same gif in netscape, then you will see the same effect.
>
>I cant really put a check in for this kind of broken gif because that could 
>cause just as bad problems for correct gifs that want this kind of 
>behaviour. 
>I dont really have a solution for you other than to write to the author of 
>the 
>gif (usually not an option, I know) and tell him/her to fix it. Perhaps as a 
>last line of defence konqueror could have some kind of filter to check for 
>these things?

This problem is certainly annoying, making konqueror seem to "hang" on
certain webpages. Netscape also uses excessive CPU when viewing the .gif
in question (http://www.hotslash.com/ad.gif), but doesn't appear to stop
responding.

Would it be desirable to put in a safegard against such broken .gifs in
konqueror?

With regards,

-- 
Simon Lindgren
simon@lindgren.no

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