[poppler] [PATCH] 2 workarounds for a Korean font on Microsoft Windows

[mpsuzuki at hiroshima-u.ac.jp]

Sorry, I slipped to attache the patches.

Regards,
mpsuzuki

On Tue, 27 Mar 2012 01:09:24 +0900
mpsuzuki at hiroshima-u.ac.jp wrote:

>Hi,
>
>On Tue, 27 Mar 2012 00:32:30 +0900
>mpsuzuki at hiroshima-u.ac.jp wrote:
>>Also I fixed Korean entry by changing "kana" to "hang",
>>but Batang (bundled to Microsoft Windows) have other
>>problems, and I will submit another set of patches.
>
>The problems in Batang (a Korean font bundled to Microsoft
>Windows) are following.
>
>1) entries in OpenType lookup table are sorted by source GID?
>
>FoFiTrueType assumes the entries in lookup table are
>sorted by source GID. If it finds a GID greater than
>source GID, the lookup process is finished as "not
>found in the table".
>
>In Batang, the entries in the lookup subtable for
>"vert" feature is not sorted by source GID, so some
>substitution rule could not be found. So all entries
>should be scanned to use Batang.
>
>attached "fixOTLookupForUnsortedTable_20120326.diff"
>is a workaround patch for this issue.
>
>
>
>2) default language system or not?
>
>FoFiTrueType assumes the vertical layout feature is
>defined in default language system, for specified
>script. FoFiTrueType::setupGSUB() takes only script
>name. It is true for SimSun, MingLiU, MS-Mincho, but
>false for Batang. In Batang, "hang" script supports
>"KOR " language system (in "KOR " language system,
>"vert" is defined), but default language system is
>not "KOR " and it has no layout feature.
>
>attached "addSetupGSUBWithLang_20120326.diff" is a
>patch to add new variant of FoFiTrueType::setupGSUB()
>taking both of "script" and "language". By giving both
>of "hang" and "KOR ", the vertical layout feature of
>Batang can be activated. Original method is kept as
>a thin wrapper of new method.
>
>attached "useSetupGSUBWithLang_20120326.diff" is a
>patch to modify GfxCIDFont::getCodeToGIDMap() to use
>new variant of FoFiTrueType::setupGSUB(script, lang).
>
>--
>
>If more detailed analysis and testing PDF are required,
>I will post.
>
>Regards,
>mpsuzuki
>_______________________________________________
>poppler mailing list
>poppler at lists.freedesktop.org
>http://lists.freedesktop.org/mailman/listinfo/poppler
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