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  1. Qt
  2. QTBUG-10471

Sufficiently complicated polygons will make rasterizer fail

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Details

    • Bug
    • Resolution: Done
    • P2: Important
    • 4.7.0
    • 4.7.0
    • GUI: Painting
    • None
    • Tested on Linux/X11
    • 44af23156fac578543e6d17c67d739e75e51c972

    Description

      Currently, a rasterPoolSize of 8192 bytes is used in qpaintengine_raster.cpp. If this is reduced to just 128 bytes, then 3 of the tst_qpathclipper::clip2 tests fail. This indicates that a sufficiently large/complex real-world polygon will fail when it exceeds the larger 8192 byte allocation if used in the same way as those tests.

      Attachments

        1. qtbug_10471.diff
          0.8 kB
          Carolina Simões Gomes

        Issue Links

          resulted from

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-10215 QRasterPaintEngine appears to live for lifetime of pixmap

          • P2: Important - Urgent, should be fixed, but will not stop the release.
          • Closed
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              ylopes Yoann Lopes
              wallison Warwick Allison (closed Nokia identity) (Inactive)
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              Dates

                Created:
                Updated:
                Resolved:

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