[Poppler-bugs] [Bug 103136] [Regression] Rendering of PDFs containing JBIG2 or CCITT graphics very slow on poppler 0.60.1

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=103136

Adrian Johnson <ajohnson at redneon.com> changed:

           What    |Removed                     |Added
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                 CC|                            |carlosgc at gnome.org

--- Comment #5 from Adrian Johnson <ajohnson at redneon.com> ---
This is caused by the switch to using cairo downscaling instead of the builtin
downscaling.

Running some quick tests it seems the cairo downscaling time is roughly
proportional to the source image size while the custom downscaling is closer to
the target size. So for downscaling to small scales we are taking a large
performance hit.

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