[Poppler-bugs] [Bug 98983] one particular PDF file displays badly

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=98983

Jason Crain <jason at aquaticape.us> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|RESOLVED                    |REOPENED
         Resolution|WORKSFORME                  |---

--- Comment #6 from Jason Crain <jason at aquaticape.us> ---
The ability to specify antialiasing was added to pdftocairo and CairoOutputDev
(Bug #94977) but CairoOutputDev::antialias is not always initialized, so which
antialiasing option gets used by evince can be unpredictable.  Also, cairo's
CAIRO_ANTIALIAS_BEST does not work well.  Running "pdftocairo -png -antialias
best input.pdf out" on the PDF in this bug and others produces incorrect
rendering.  So, depending on whether during rendering
CairoOutputDev::setContextAntialias is called, and depending on what value the
memory allocation gods choose for CairoOutputDev::antialias, this bad rendering
can be triggered.

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