[cairo-bugs] [Bug 95235] New: Cairo 1.14.4: wrong rasterization for concave shapes with cairo_mesh_pattern

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=95235

            Bug ID: 95235
           Summary: Cairo 1.14.4: wrong rasterization for concave shapes
                    with cairo_mesh_pattern
           Product: cairo
           Version: unspecified
          Hardware: Other
                OS: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: general
          Assignee: chris at chris-wilson.co.uk
          Reporter: s.brodacka at gmail.com
        QA Contact: cairo-bugs at cairographics.org

Created attachment 123402
  --> https://bugs.freedesktop.org/attachment.cgi?id=123402&action=edit
minimal example

Cairo sometimes cuts the concavity of shape if the cairo_mesh_pattern is used
for rasterization. It looks like extra point is created on the shape to close
the pattern and additional shape is rasterized to fill it.
If the standard drawing method is used the shape is fine.
Minimal example of cairo_mesh_pattern (red) rasterization summarized with
standard rasterization (black) showing the difference in rasterized shape is
attached.

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