Bug 12521 – fontconfig do hint Chinese fonts well (/etc/fonts/fonts.conf error)

• Product: Gentoo Linux
• Status: VERIFIED TEST-REQUEST

[Description Yi-Shin Li 2002-12-21 08:25:28 UTC]

versions:
fontconfig-2.1
freetype-2.1.3-r2
xft-2.0.1
mozilla-1.2.1-r3

My mozilla(w/ xft support) could hardly display 
Chinese truetype fonts when I went to tw.yahoo.com.
My other gtk application, gaim, was not able to 
render Chinese TTFs well neither. However, the
xfd did display them without problem. Those Chinese 
fonts, kaiu.ttf and mingliu.ttc, are copied from Win2K.

I finally figured out that is because my fontconfig-2.1
has disabled the CJK fonts hinting in /etc/fonts/fonts.conf.
By enabling the Chinese(zh) TTF hinting, both my mozilla
and gaim render the TTF beautifully. I do not know if Koren
or Japan TTFs have the same problem.

from /etc/fonts/fonts.conf:
	<match target="font">
		<test name="lang" compare="contains">
			<string>zh</string>
		</test>
		<edit name="hinting" mode="assign">
			<bool>true</bool>
		</edit>
	</match>

Regards,
Yi-Shin

[Comment 1 Seemant Kulleen (RETIRED) 2002-12-21 15:53:48 UTC]

Nakano, can you confirm this for Japanese fonts please?

[Comment 2 Martin Schlemmer (RETIRED) 2002-12-21 16:11:54 UTC]

<!-- 
 We can't hint CJK fonts well, so turn off hinting for CJK fonts.
 -->

        <match target="font">
                <test name="lang" compare="contains">
                        <string>ja</string>
                </test>
                <edit name="hinting" mode="assign">
                        <bool>false</bool>
                </edit>
        </match>
        <match target="font">
                <test name="lang" compare="contains">
                        <string>ko</string>
                </test>
                <edit name="hinting" mode="assign">
                        <bool>false</bool>
                </edit>
        </match>
        <match target="font">
                <test name="lang" compare="contains">
                        <string>zh</string>
                </test>
                <edit name="hinting" mode="assign">
                        <bool>false</bool>
                </edit>
        </match>

--------------

Looks like Keith and co turned it off by default ...

[Comment 3 Seemant Kulleen (RETIRED) 2002-12-22 04:57:40 UTC]

Seo, can you test Korean fonts please?

[Comment 4 Martin Schlemmer (RETIRED) 2002-12-22 05:11:42 UTC]

Btw, that page display fine here without editing fonts.conf ...

[Comment 5 Jungmin Seo (RETIRED) 2002-12-22 05:46:51 UTC]

my korean ttf fonts work well without enabling the hinting feature, and your 
chinese fonts seem to have the correct hinting information with them, which is 
why they are better with enabling it.

[Comment 6 Yi-Shin Li 2002-12-22 22:40:59 UTC]

>Btw, that page display fine here without editing fonts.conf ...
maybe that is because we have different Chinese TTF configuration.
What is your font configuration? 

In my mozilla, the "Traditional Chinese Font" is "PMingLiU", 
which is copied from MSWin2K(mingliu.ttc). 
The followings are the screenshots that took from mozilla:

tw.yahoo.com with "zh" hinting (200% text room):
http://cottonclub.ee.columbia.edu/~ysli/hint-zh-tw.yahoo.com.png

tw.yahoo.com without "zh" hinting (200% text room):
http://cottonclub.ee.columbia.edu/~ysli/nohint-zh-tw.yahoo.com.png

the Chinese Font configuration:
http://cottonclub.ee.columbia.edu/~ysli/mozilla-font-conf.png

[Comment 7 Martin Schlemmer (RETIRED) 2002-12-22 22:56:55 UTC]

Didnt specify specific chinese fonts .. just let it use site specified ones

[Comment 8 Seemant Kulleen (RETIRED) 2003-04-20 04:39:43 UTC]

still an issue?

[Comment 9 Heinrich Wendel (RETIRED) 2003-11-24 03:09:53 UTC]

please test with latest fontconfig

[Comment 10 Yi-Shin Li 2003-11-24 14:59:19 UTC]

fontconfig-2.2.1
mozilla-1.5
The Chinese Font Problem has been solved.

Portage 2.0.49-r15 (default-x86-1.4, gcc-3.3.2, glibc-2.3.2-r9, 2.4.22)
=================================================================
System uname: 2.4.22 i686 AMD Duron(tm) Processor
Gentoo Base System version 1.4.3.12
distcc 2.11.2 i686-pc-linux-gnu (protocols 1 and 2) (default port 3632) [disabd]
ccache version 2.3 [enabled]
ACCEPT_KEYWORDS="x86 ~x86"
AUTOCLEAN="yes"
CFLAGS="-mcpu=athlon -O2 -pipe"
CHOST="i686-pc-linux-gnu"
COMPILER="gcc3"
CONFIG_PROTECT="/etc /var/qmail/control /usr/kde/2/share/config /usr/kde/3/sha/config /var/bind /usr/X11R6/lib/X11/xkb /opt/tomcat/conf /usr/kde/3.1/share/cfig /usr/share/texmf/tex/generic/config/ /usr/share/texmf/tex/platex/config/ /r/share/config"
CONFIG_PROTECT_MASK="/etc/gconf /etc/env.d"
CXXFLAGS="-mcpu=athlon -O2 -pipe"
DISTDIR="/usr/portage/distfiles"
FEATURES="sandbox ccache autoaddcvs"
GENTOO_MIRRORS="ftp://sunsite.ualberta.ca/pub/unix/Linux/gentoo/ http://gentooregonstate.edu/ http://distro.ibiblio.org/pub/Linux/distributions/gentoo http:csociety-ftp.ecn.purdue.edu/pub/gentoo/"
MAKEOPTS="-j5"
PKGDIR="/usr/portage/packages"
PORTAGE_TMPDIR="/var/tmp"
PORTDIR="/usr/portage"
PORTDIR_OVERLAY=""
SYNC="rsync://rsync.gentoo.org/gentoo-portage"
USE="x86 apm foomaticdb libg++ mad mikmod pdflib xmms xv zlib gtkhtml gdbm berb slang readline tetex svga guile sdl gpm tcpd pam python imlib qt motif snmp r -sse 3dnow mmx kde gnome alsa bonobo -cups lprng mozilla truetype dvd jpeg g avi mpeg encode quicktime opengl directfb esd nls nas arts perl tcltk java crt xfs ssl mozsvg mozcalendar mozinterfaceinfo mozp3p mozxmlterm moznocompose o oggvorbis ncurses X libwww png gtk gtk2 lcms tiff xml2 -ldap mysql imap maild sasl postgres ofx hbci doc spell cjk"

[Comment 11 Thomas Bettler 2005-10-31 17:27:08 UTC]

You might close this bug, it's solved now!