[Webkit-unassigned] [Bug 36182] New: fillText() function on <canvas> does not antialias small monospace text

bugzilla-daemon at webkit.org bugzilla-daemon at webkit.org
Tue Mar 16 12:33:35 PDT 2010


https://bugs.webkit.org/show_bug.cgi?id=36182

           Summary: fillText() function on <canvas> does not antialias
                    small monospace text
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: Macintosh Intel
               URL: http://tom.preston-werner.com/random/canvas_rotated_te
                    xtfill.html
        OS/Version: Mac OS X 10.6
            Status: UNCONFIRMED
          Severity: Normal
          Priority: P2
         Component: New Bugs
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: tom at mojombo.com


Overview:

Small monospace typefaces are rendered without antialiasing while other
typefaces (serif, sans-serif) are antialiased at all sizes. This problem
exhibits in Safari 4.0.3 and Chrome 5.0.342.3 dev. Firefox 3.5 renders the text
with antialiasing as expected. See
http://tom.preston-werner.com/random/canvas_rotated_textfill.html for a live
demo.


Steps to reproduce:

Set ctx.font to a monospace typeface at a size of 10px or 7.5pt or smaller and
use ctx.fillText() to write some text to the canvas.


Actual results:

The rendered text is not antialiased.


Expected results:

The rendered text should be properly aliased.

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