[Webkit-unassigned] [Bug 42272] New: Canvas: Fast-path for assigning the same color string as before to fillStyle or strokeStyle

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=42272

           Summary: Canvas: Fast-path for assigning the same color string
                    as before to fillStyle or strokeStyle
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: All
        OS/Version: All
            Status: NEW
          Keywords: Performance
          Severity: Normal
          Priority: P2
         Component: WebCore Misc.
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: andreas.kling at nokia.com
                CC: oliver at apple.com


When assigning a color string to fillStyle or strokeStyle, we take a detour via a CanvasStyle object.

We could add an early return fast-path when assigning the same string as before that does the check without creating a CanvasStyle object.

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