[Webkit-unassigned] [Bug 248014] New: [WinCairo][WK1] Can't paint a font after painting very large font

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=248014

            Bug ID: 248014
           Summary: [WinCairo][WK1] Can't paint a font after painting very
                    large font
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Platform
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: Hironori.Fujii at sony.com

[WinCairo][WK1] Can't paint a font after painting very large font

For example, fast/text/letter-spacing-produces-nan-width.html contains a very large font.
After load the test case, fast/text/simple-lines-float.html fails.

> python3.exe ./Tools/Scripts/run-webkit-tests --wincairo --debug -1 --no-retry-failures fast/text/letter-spacing-produces-nan-width.html fast/text/simple-lines-float.html --iterations=2 -v

> [1/4] fast/text/simple-lines-float.html passed
> [2/4] fast/text/letter-spacing-produces-nan-width.html passed
> [3/4] fast/text/simple-lines-float.html failed unexpectedly (reference mismatch maxDifference=255; totalPixels=1356)
> [4/4] fast/text/letter-spacing-produces-nan-width.html passed

The first test run of simple-lines-float.html passed, but failed in the second because it was after letter-spacing-produces-nan-width.html.

See also:
  Bug 246844 – REGRESSION(cairo 1.17.6)[WinCairo] rendering glitches of twitter.com and yahoo.co.jp

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