[cairo-bugs] [Bug 81699] Segfault sweep_line_delete on video playback (2)

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=81699

--- Comment #11 from Chris Wilson <chris at chris-wilson.co.uk> ---
Hmm, nope. We only reject the empty boxes, but allow negative boxes to
represent counter winding. That's cunning.

Ok, found the problem. It's the traps-to-boxes routine that doesn't prefilter
zero height traps/boxes.

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