[Poppler-bugs] [Bug 68360] Add option to manually disable bilinear filtering

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=68360

--- Comment #19 from Charles Hyder <dr.hyder at gmail.com> ---
(In reply to comment #15)
> Ok, sorry my bad, yes 
> ./utils/pdftoppm -r 400 -png  ~/page.pdf lolo
> 
> Does hit the bilinear filtering path.

Again, I don't really understand why raster graphics needs any bilinear
filtering since, as I wrote, the good old pixel mixing (I assume that's what
the old code used) is the natural way to go. Rendering vector graphics, again,
is a different matter, though.

> So the new name of the bug +
> enhacement category should fix the thing for you and get the old behaviour.
> 
> Now, are you guys interested in coding this feature? 

"Guys" is just myself.

> Should be a matter of
> no more than 50 lines, basically a settter to SplashOutputDev, a setter to
> Splash, modifying isImageInterpolationRequired and making pdftoppm set that
> option if needed + the manpage change.

I might. However, the issue is not very high on my personal priorities list
since I'm all set using the Poppler v 0.20 for now and unless Adobe releases an
update to their PDF spec such that the old Poppler code won't render it I won't
feel any pressure really.

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