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  1. JDK
  2. JDK-8299255

Unexpected round errors in FreetypeFontScaler

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      Description

        In 'Java_sun_font_FreetypeFontScaler_createScalerContextNative', 'context->transform.xx' and '.yy' values are sometimes 65535 instead of 65536.

        Problem case:
        context->transform.xx=65535 yx=0 xy=0 yy=65535 ptsz=46.590909 dmat[0]=46.590909 (float)dmat[0]=46.590908

        Normal case:
        context->transform.xx=65536 yx=0 xy=0 yy=65536 ptsz=18.000000 dmat[0]=18.000000 (float)dmat[0]=18.000000

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            Backport - A issue that is required to port a Bug or Feature into another product release. This issue type is generally associated with the main Bug/Feature to represent each individual release of the port. JDK-8314645 Unexpected round errors in FreetypeFontScaler

            • P4 - Minor loss of function, or other problem where easy workaround is present.
            • Resolved

            Backport - A issue that is required to port a Bug or Feature into another product release. This issue type is generally associated with the main Bug/Feature to represent each individual release of the port. JDK-8314646 Unexpected round errors in FreetypeFontScaler

            • P4 - Minor loss of function, or other problem where easy workaround is present.
            • Resolved

            Backport - A issue that is required to port a Bug or Feature into another product release. This issue type is generally associated with the main Bug/Feature to represent each individual release of the port. JDK-8316351 Unexpected round errors in FreetypeFontScaler

            • P4 - Minor loss of function, or other problem where easy workaround is present.
            • Resolved

            Backport - A issue that is required to port a Bug or Feature into another product release. This issue type is generally associated with the main Bug/Feature to represent each individual release of the port. JDK-8318503 Unexpected round errors in FreetypeFontScaler

            • P4 - Minor loss of function, or other problem where easy workaround is present.
            • Resolved
            links to

            Commit Commit openjdk/jdk11u-dev/abeacbfa

            Commit Commit openjdk/jdk17u-dev/4d8549be

            Commit Commit openjdk/jdk/26868c1a

            Review Review openjdk/jdk11u-dev/2191

            Review Review openjdk/jdk17u-dev/1732

            Review Review openjdk/jdk/11763

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                tnakamura Toshio Nakamura
                tnakamura Toshio Nakamura
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                  Updated:
                  Resolved: