[Webkit-unassigned] [Bug 73173] New: fillText() and strokeText() handle fractional pixel values differently

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=73173

           Summary: fillText() and strokeText() handle fractional pixel
                    values differently
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: Unspecified
        OS/Version: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Canvas
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: ian at hixie.ch
                CC: mdelaney at apple.com


TESTCASE DEMO: http://goo.gl/eIqkB

EXPECTED RESULTS
The relative thickness of the black outline on either side of the text should be the same above and below the text regardless of the y coordinate.

ACTUAL RESULTS
(Tested with stable Chrome on Mac.)
The stroke seems to be drawn at the fractional position, but the fill seems to be snapped to a pixel boundary. I don't mind the snapping, but it should happen for both stroke and fill if it happens for either. Otherwise, if you have some animated text with both a stroke and a fill, the text outline will appear to slide around independent of the fill.

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