[Poppler-bugs] [Bug 63088] poppler: file parsing infinite loop encountered with docs containing image masks (sample attached)

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=63088

--- Comment #2 from Thomas Freitag <Thomas.Freitag at alfa.de> ---
(In reply to comment #1)
> Are you sure it's a core problem? I can see pdftohtml looping but all the
> other tools pdftops, pdftoppm, etc. work fine

You're true: all the other tools use OutputDevice's which implements
tilingPatternFill, but HTMLOutputDev.cc / *.h doesn't implement it. And because
the image mask is part of a pattern colorspace, it is outputted 2541 x 438 = 
1112958, and that twice. 

I'm not familiar enough neither with HTML nor with CSS nor with pdftohtml to
decide wether it is possible to render it only once and than run a javascript
loop or define a CSS element around it like we do it in PSOutputDev or to
render it as one image like we do it in SplashOutputDev, but the only solution
I see is that someone with more knowhow implement the tilingPatternFill (and
set useTilingPatternFill() to true) in HTMLOutputDev!

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