[Bug 217908] Re: Images in Firefox and Opera are extremely pixeled when zoomed

Sancho Panza prashmail at yahoo.com
Sat Oct 11 15:41:43 UTC 2008


@Bryce, thank you so much for your time. I trying for so long to get some response on this.
I a relative noob and am not into coding, so I can't compare actual codes and the like. My comments are based on what I have read on forums and mailing lists. Based on that and my personal experience, here are the answers to your queries:

* On the comment here https://bugzilla.mozilla.org/show_bug.cgi?id=422179#c9 says 
"Mozilla doesn't scale the images at all -- we hand off the image and a transform to RENDER,
which needs to do the scaling. The issue is that the
version of pixman that's currently shipped with all X servers doesn't implement
EXTEND_PAD, which we need to get correct behaviour at image edges."
* And here http://blog.vlad1.com/2008/03/18/a-little-more-cairo-just-for-you/ which says "Linux users will have to wait a little longer to get higher quality image scaling; as we now rely on the X server to do image compositing through the Render extension, we'll have to wait until the pixman patches are integrated into the X server.  I'm hoping that will happen in time for the next X.org release."
* And the release of the library pixman( http://lists.freedesktop.org/archives/xorg-announce/2008-March/000529.html ) makes reference to modifications in the EXTEND_PAD.
* Related comparison of graphics renderings on winXP and ubuntu hardy are here: http://farm3.static.flickr.com/2162/2481984708_dedc30e9df_o.png
* This poll on Ubuntu forums indicates that 45 of 56 voters had this issue on intrepid as of today http://ubuntuforums.org/showthread.php?t=867161

These are the pieces that I used to guess that the bug might be fixed upstream. Thats the best I could do.
I'm aware that latest Intrepid and Fedora10 beta use the latest xorg packages but dont seem to have this bug fixed.
Based on the above info, I also assumed that it had nothing to do with the graphics card.

My Xorg log is attached.


** Attachment added: "Xorg log file."
   http://launchpadlibrarian.net/18443688/Xorg.0.log

-- 
Images in Firefox and Opera are extremely pixeled when zoomed
https://bugs.launchpad.net/bugs/217908
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