Hi, Sven, Thanks for the info! Yes, I am absolutely sure that the font files I tried contain Chinese characters and they work fine with X11 applications to display Chinese fonts. Even xfd could display Chinese characters from those files.
I also suspect that the example program df_font.c that comes in the directfb package might have problems in handling unicode characters that require multiple bytes. I've tried several UTF-8 font files with df_font, and none worked for characters requiring multiple bytes. I'm not sure if the problem is in df_font, or is in directfb itself. - Weidong On Thu, Aug 27, 2009 at 3:56 PM, Sven Neumann <[email protected]> wrote: > Hi, > > On Thu, 2009-08-27 at 08:24 -0400, Weidong Li wrote: > > I'm new to this mailing list. I have a directfb 1.2.6 built for an > > arm device. It seems that it has probblems in displaying fonts in > > Chinese characters, or I did not use it correctly? Here is the > > symptom I had: > > > > I used the release example program, df_fonts, to display a ttf font > > file as follows: > > df_font fontfile.ttf > > Upon this, it displayed a table of the font from the font file, but > > only latin characters were correctly displayed. The Chinese characters > > were shown as empty boxes. > > Are you absolutely sure that the font you looked at does have coverage > for Chinese characters at all? > > DirectFB does have full Unicode support. You should be aware though that > the font rendering capabilities of the core DirectFB API are quite > limited. If you need more advanced font rendering, you could consider to > use Pango on top of DirectFB. Should be possible to use the Pango with > the DirectFB port of Cairo. But I haven't tried this myself yet. > > > Sven > > > >
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