Re: PNG file gamma not handled

On October 27, 2005 12:46, Lubos Lunak wrote:
> On Thursday 27 of October 2005 17:32, Christopher Martin wrote:
> > Hello,
> >
> > It seems that neither Qt nor Gwenview handle gamma values associated
> > with PNG files correctly. For instance, the images at
> > http://www.christian-seiler.de/temp/gamma.html look different in
> > Mozilla/Firefox, as they should, but unless your Qt is patched, they
> > will look identical in Konqueror (the patch to fix this is in qt-copy,
> > but looks a little dodgy).
> >
> > Gwenview seems to borrow code from Qt, and it inherits this problem.
> > The attached patch seems to fix the issue, so that the images at the
> > above link (and those at http://www.w3.org/Graphics/PNG/all_seven.html,
> > another handy site) all look correct when viewed in Gwenview.
>
>  The PNG decoder in Gwenview is more or less a copy of the one in Qt,
> with some modifications (I don't remember exactly why right now), so the
> qt-copy patch should apply to it as well.
>
>  I've sent a patch to the person who created the patch asking about the
> status.

It looks like the qt-copy patch has been dropped, in favour of a fix in 
kdelibs itself.

Since this new fix doesn't solve Gwenview's issue, then my patch is still 
needed.

Cheers,
Christopher Martin