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  1. Qt
  2. QTBUG-43474

Rendering bug with QPainterPath and QBezier

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    Description

      Attached example fills area incorrectly and may even crash. Valgrind run with Qt 5.4.0 binary installed by online installer is emitting uninitialized value being used and invalid reads.

      With Qt compiled from git, it is catching this assert:

      ASSERT: "!isEmpty()" in file ../../include/QtGui/5.4.0/QtGui/private/qdatabuffer_p.h, line 82

      Attachments

        1. qtbug43474_stack4.txt
          45 kB
        2. qtbug43474_stack5.txt
          18 kB
        3. QTBUG-43474.tar.gz
          1 kB
        4. valgrind_output.txt
          12 kB
        For Gerrit Dashboard: QTBUG-43474
        # Subject Branch Project Status CR V
        157541,2 Avoid asserting when painting certain degenerate bezier paths 5.6 qt/qtbase Status: MERGED +2 0

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          People

            vgt Eirik Aavitsland
            poikelin Joni Poikelin
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            Dates

              Created:
              Updated:
              Resolved:

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