Bug#682426: cups: filter gs takes several minutes consuming 100 % of CPU

[James Cloos <cloos@jhcloos.com>]

A comment on http://bugs.ghostscript.com/show_bug.cgi?id=694360
suggests that transparency might be a factor in why gs uses so much ram.

At some point in the last year or two, gecko apps started generating
full page transparency whenever *any* image happened to be ARGB (png or gif).

Previously, it either pre-flattened the image to the background or
skipped the alpha channel when printing.  (I don't know which.)

This means that the bug will show up for any files printed from gecko
apps whenever the webpage or mail has any alpha-blending at all.

I haven't tracked down whether this aspect of the bug is in cairo or in
how gecko calls cairo.

(I also should note that I do not have a deb box on which I can test
this; my debs are all headless.  My GUI tests are all done on Gentoo.
YMMV.)

-JimC
-- 
James Cloos <cloos@jhcloos.com>         OpenPGP: 1024D/ED7DAEA6