[cairo-bugs] [Bug 57164] New: Regressions in poppler since cairo 1.12.4

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=57164

          Priority: medium
            Bug ID: 57164
          Assignee: chris at chris-wilson.co.uk
           Summary: Regressions in poppler since cairo 1.12.4
        QA Contact: cairo-bugs at cairographics.org
          Severity: normal
    Classification: Unclassified
                OS: Linux (All)
          Reporter: carlosgc at gnome.org
          Hardware: Other
            Status: NEW
           Version: 1.12.4
         Component: image backend
           Product: cairo

Created attachment 70135
  --> https://bugs.freedesktop.org/attachment.cgi?id=70135&action=edit
Expected

git bisect blames this commit:

36536d3eb83a8f942bcf1afba4d0815fbeaca10f is the first bad commit
commit 36536d3eb83a8f942bcf1afba4d0815fbeaca10f
Author: Chris Wilson <chris at chris-wilson.co.uk>
Date:   Thu Sep 27 11:14:18 2012 +0100

    spans-compositor: Use the tight clip-boxes for polygon construction

    If we will be reducing the clip intersection to a single clip box check
    during construction, it helps if we use the tight clip box.

    Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>

The problem can be seen with altona_visual_1v2a_x3.pdf, there's a line in the
middle of some radial gradients. I'm attaching the actual, expected and diff
images.

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