[Bug 461617] modified Sazanami-Gothic font showing vertical text rendering glitches not seen in the original

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https://bugzilla.redhat.com/show_bug.cgi?id=461617


Caolan McNamara <caolanm at redhat.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |caolanm at redhat.com
          Component|sazanami-fonts              |openoffice.org
            Version|10                          |rawhide
         AssignedTo|tagoh at redhat.com            |caolanm at redhat.com




--- Comment #15 from Caolan McNamara <caolanm at redhat.com>  2009-09-30 07:46:47 EDT ---
I'm now back to very suspicious about OOo itself. Both fontforge and ttx are
preferring the type 2 coverage format when saving this font as its more compact
in this case that the original fonts type 1 coverage table. Presuming that both
ttx and fontforge are re-encoding as type 2 correctly then it would be OOo
that's handling them incorrectly.

http://www.microsoft.com/typography/otspec/CHAPTER2.htm has "Coverage Index
(GlyphID) = StartCoverageIndex + GlyphID - Start GlyphID" which *plausibly* is
somewhere we're going wrong.

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