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From: | Johnson Y. Yan |
Subject: | Re: [ft-devel] Freetype render issue |
Date: | Fri, 5 Jul 2013 18:35:41 +0800 |
Werner, We use the new CFF engine, the
glyph is displayed correct now. Thanks.
Johnson Y. Yan
发件人: Werner
LEMBERG
发送时间:
2013-06-28 18:50:49
收件人:
yinsen_yan
抄送:
freetype-devel
主题: Re: [ft-devel]
Freetype render issue
> An integral sign should be displayed in attachment pdf file.
> Could you help check this issue is caused by freetype?
Indeed, there are rendering issues in the raw CFF font `cmex10'
embedded in the PDF: I get many `stack underflow' tracing messages
using the old CFF engine. However, if you use the new CFF engine, all
glyphs are displayed correctly.
Note that the `stack underflow' messages are correct actually since
the constructed `cmex10' font is buggy: For example, glyph 5 contains
`vhcurveto' with zero arguments as the very last operator which is
invalid according to the Type 2 specification. In other words,
FreeType's old CFF engine is correct, and you should fix your
application's CFF builder.
Werner |
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