[Webkit-unassigned] [Bug 191452] New: [Windows][DirectX] Be more rigors about BeginFigure/EndFigure and Close operations

bugzilla-daemon at webkit.org bugzilla-daemon at webkit.org
Thu Nov 8 20:35:05 PST 2018


https://bugs.webkit.org/show_bug.cgi?id=191452

            Bug ID: 191452
           Summary: [Windows][DirectX] Be more rigors about
                    BeginFigure/EndFigure and Close operations
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: WebCore Misc.
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: bfulgham at webkit.org

The ID2D1GeometrySink used to represent segments of an open Path require that all cases of BeginFigure be matched with a corresponding EndFigure. If the BeginFigure/EndFigure counts do not match when the sink is closed, the sink will enter an error state and will not draw content.

This patch keeps track of the BeginFigure/EndFigure operations, and ensures the calls are in balance before closing.

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