[Webkit-unassigned] [Bug 34735] New: [Chromium] OpenType font with CFF glyphs is not handled correctly on Windows XP

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=34735

           Summary: [Chromium] OpenType font with CFF glyphs is not
                    handled correctly on Windows XP
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: PC
               URL: http://code.google.com/p/chromium/issues/detail?id=318
                    79
        OS/Version: Windows XP
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: WebKit Misc.
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: yusukes at chromium.org


Chromium bug: http://crbug.com/31879

OpenType font with CFF glyphs is not handled correctly on Windows XP.
Nonexistent glyphs are treated as existent (http://crbug.com/31879,
http://crbug.com/30759, and http://crbug.com/32510) and vice versa
(http://crbug.com/29805).

fillBMPGlyphs() function in
platform/graphics/chromium/GlyphPageTreeNodeChromiumWin.cpp should be modified
so the function can detect OpenType fonts with CFF glyphs:

http://trac.webkit.org/browser/trunk/WebCore/platform/graphics/chromium/GlyphPageTreeNodeChromiumWin.cpp?rev=45325#L137
136         int invalidGlyph = 0xFFFF;
137        if (!isVistaOrNewer() && !(tm.tmPitchAndFamily & TMPF_TRUETYPE))   
// <----- TMPF_TRUETYPE is not set for OpenType fonts with CFF glyphs!!
138            invalidGlyph = 0x1F;

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