[cairo-bugs] [Bug 96429] New: clip with large extents is unreliable, changes with zoom

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=96429

            Bug ID: 96429
           Summary: clip with large extents is unreliable, changes with
                    zoom
           Product: cairo
           Version: unspecified
          Hardware: Other
                OS: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: general
          Assignee: chris at chris-wilson.co.uk
          Reporter: jason at aquaticape.us
        QA Contact: cairo-bugs at cairographics.org

Created attachment 124391
  --> https://bugs.freedesktop.org/attachment.cgi?id=124391&action=edit
cairo-test.c

Forwarding from https://bugs.debian.org/728358

The PDF at
https://bugs.debian.org/cgi-bin/bugreport.cgi?filename=D.pdf;bug=728358;att=1;msg=5
does not always render correctly in evince or pdftocairo.  The drawing in the
middle of the page disappears at some zoom levels.  The PDF contains drawing
commands with large numbers like:

    0 0 m
    0 2147483647 l
    1098 2147483647 l
    1098 0 l
    W* n

Which means clip to a very large box.  I can reproduce this behavior in cairo
with the attached C program.  Clipping to a large rectangle will sometimes
cause any further drawing to not happen, though depending on the scaling (set
by calling cairo_scale) it will sometimes work.

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