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Re: [ft-devel] PDF text rendering error

From: Johnson Y. Yan
Subject: Re: [ft-devel] PDF text rendering error
Date: Mon, 11 Jun 2012 15:03:01 +0800

Werner and Toshiya-san,
I  put the font as a tricky font to deal with.
static const char trick_names[TRICK_NAMES_COUNT]
                                 [TRICK_NAMES_MAX_CHARACTERS + 1] =
      "DFKaiSho-SB",     /* dfkaisb.ttf */
      "DFKai-SB",        /* kaiu.ttf */
      "HuaTianKaiTi?",   /* htkt2.ttf */
      "HuaTianSongTi?",  /* htst3.ttf */
      "MingLiU",         /* mingliu.ttf & mingliu.ttc */
      "PMingLiU",        /* mingliu.ttc */
      "MingLi43",        /* mingli.ttf */
  "BKLGIB+FA"     ---------------------------------------- this is the embeded font in th document.
it still render error. .
I opened the embeded font use font lab, found the gid = 2134 is like this, please see the attach bitmap,
some of lines form a 0 area areas, then fill the area(have no area), Does freetype made special processing?
Johnson Y. Yan

发件人: Werner LEMBERG
发送时间: 2012-06-11 12:55:42
收件人: yinsen_yan
抄送: freetype-devel; mpsuzuki
主题: Re: PDF text rendering error
> Do you mean the font must be rendered use
No, the FreeType *library* must be built with it: Edit ftoption.h to
set this flag, then recompile.
Additionally, hinting must be enabled for this font, this is,
FT_LOAD_NO_SCALE doesn't work here.
Normally, those steps are (more or less) handled automatically by
FreeType, since we maintain a list of `tricky' font like the one you
have encountered in the PDF; see file `ttobjs.c'.  The subsetted font
in question, however, which identifies itself as
  FA 丸ゴシックB and FA-RoundGothicB are trademarks of NEC Office Systems,Ltd.
isn't in this list; for the NEC FA fonts (and others), a second
mechanism is used which doesn't work with subsetted fonts.
Toshiya-san, any ideas?

Attachment: ping.bmp
Description: Binary data

Attachment: 1_BKLGIB+FA.ttf
Description: Binary data

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