[Webkit-unassigned] [Bug 29618] Text isn't fully rendered with certain fonts in Win32/Cairo

bugzilla-daemon at webkit.org bugzilla-daemon at webkit.org
Tue Dec 22 17:18:45 PST 2009


https://bugs.webkit.org/show_bug.cgi?id=29618





--- Comment #7 from Brent Fulgham <bfulgham at webkit.org>  2009-12-22 17:18:44 PST ---
Note that a very similar issue was discussed on the Cairo mailing list over
three years ago.  See
http://lists.freedesktop.org/archives/cairo/2006-October/008081.html.  While
the referenced images seem to be lost in time, the commentary is illuminating:

 "note how the "1" digits that occur as the final character of a string have
been partially cut off)"

At the time, the resolution seemed to be to force use of the 24-bit backend for
certain operations:

  "If I changed cairo_win32_surface_create() to use RGB24 also when BITSPIXEL
is 32, the problem went away, as _cairo_win32_scaled_font_show_glyphs() then
uses the "direct" branch. But this seemed like using a awfully large hammer to
fix the problem."

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