Let me show it with an example.
Currently:
$ fc-match symbol
symbol.ttf: "Symbol" "Regular"
$ fc-match symbol --sort | head -n 1
Symbol.pfb: "Symbol" "Regular"
$ fc-match symbol --sort --all | head -n 1
symbol.ttf: "Symbol" "Regular"
I want to make sure the above three commands all return the same font.
Ie. I want to make sure FcFontMatch() always returns the first font
from FcFontSort(). As such, never trim first font.
Reported by parfait 1.3:
Error: Null pointer dereference (CWE 476)
Read from null pointer t
at line 423 of src/fcname.c in function 'FcNameParse'.
Function _FcObjectLookupOtherTypeByName may return constant 'NULL'
at line 63, called at line 122 of src/fcobjs.c in function
'FcObjectLookupOtherTypeByName'.
Function FcObjectLookupOtherTypeByName may return constant 'NULL'
at line 122, called at line 67 of src/fcname.c in function
'FcNameGetObjectType'.
Function FcNameGetObjectType may return constant 'NULL' at line 67,
called at line 422 in function 'FcNameParse'.
Null pointer introduced at line 63 of src/fcobjs.c in function
'_FcObjectLookupOtherTypeByName'.
Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>
Reported by parfait 1.3:
Memory leak of pointer sset allocated with FcStrSetCreate()
at line 933 of src/fcstr.c in function 'FcStrBuildFilename'.
sset allocated at line 927 with FcStrSetCreate().
sset leaks when sset != NULL at line 932.
Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>
config.h is read from fcint.h now so having a line of the sort of #include "config.h"
is duplicate.
Bug 69833 - Incorrect SIZEOF_VOID_P and ALIGNOF_DOUBLE definitions causes nasty warnings on MacOSX when building fat libraries
This change reverts 9acc14c34a
because it doesn't work as expected when building
with -fshort-enums which is default for older arms ABIs
Thanks for pointing this out, Thomas Klausner, Valery Ushakov, and Martin Husemann
After this change, the following works as expected:
$ FC_DEBUG=4 fc-match ":family=foo bar, sans-serif"
...
FcConfigSubstitute Pattern has 3 elts (size 16)
family: "foo bar"(s) "sans-serif"(s)
...
Workaround to not failing even when the hash is unable to generate from fonts.
This change also contains to ignore the case if the hash isn't in either both
patterns.
Regex is expensive to compare filenames. we already have the glob matching
and it works enough in this case.
Prior to this change, renaming FcConfigGlobMatch() to FcStrGlobMatch() and moving to fcstr.c
Add back FcHashGetSHA256DigestFromFile() and fall back to it
when font isn't SFNT-based font because FT_Load_Sfnt_Table
fails with FT_Err_Invalid_Face_Handle.
As of automake-13.1 the INCLUDES directive is no longer supported.
An automake run will return with an error.
This changeset simply follows automake's advice to replace INCLUDES
by AM_CPPFLAGS.
Add an ability to set the system root to generate the caches.
In order to do this, new APIs, FcConfigGetSysRoot() and
FcConfigSetSysRoot() is available.
Maps fonts produced by the Culmus project <http://culmus.sourceforge.net>
to the XLFD foundry name culmus.
For TrueType fonts, maps the vendor code CLM from the TrueType vendor id field.
For Type1 fonts, which use heuristics to guess mappings to XLFD foundries from
words in the copyright notice, add the names of the main contributors to
the Culmus product to recognize the fonts under their copyright.
Patch from Maxim Iorsh
Add two edit mode, "delete" and "delete_all".
what values are being deleted depends on <test> as documented.
if the target object is same to what is tested, matching value there
will be deleted. otherwise all of values in the object will be deleted.
so this would means both edit mode will not take any expressions.
e.g.
Given that the testing is always true here, the following rules:
<match>
<test name="foo" compare="eq">
<string>bar</string>
</test>
<edit name="foo" mode="delete"/>
</match>
will removes "bar" string from "foo" object. and:
<match>
<test name="foo" compare="eq">
<string>foo</string>
</test>
<edit name="bar" mode="delete"/>
</match>
will removes all of values in "bar" object.
This changes allows to have multiple mathcing rules in one <match> block
in the same order.
After this changes, the following thing will works as two matching rules:
<match>
<!-- rule 1 -->
<test name="family" compare="eq">
<string>foo</string>
</test>
<edit name="foo" mode="append">
<string>foo</string>
</edit>
<!-- rule 2 -->
<test name="foo" compare="eq">
<string>foo</string>
</test>
<edit name="foo" mode="append">
<string>bar</string>
</edit>
</match>
In FcStrListCreate() we were increasing reference count of set,
however, if set had a const reference (which is the case for list
of languages), and with multiple threads, the const ref (-1) was
getting up to 1 and then a decrease was destroying the set. Ouch.
Here's the valgrind error, which took me quite a few hours of
running to catch:
==4464== Invalid read of size 4
==4464== at 0x4E58FF3: FcStrListNext (fcstr.c:1256)
==4464== by 0x4E3F11D: FcConfigSubstituteWithPat (fccfg.c:1508)
==4464== by 0x4E3F8F4: FcConfigSubstitute (fccfg.c:1729)
==4464== by 0x4009FA: test_match (simple-pthread-test.c:53)
==4464== by 0x400A6E: run_test_in_thread (simple-pthread-test.c:68)
==4464== by 0x507EE99: start_thread (pthread_create.c:308)
==4464== Address 0x6bc0b44 is 4 bytes inside a block of size 24 free'd
==4464== at 0x4C2A82E: free (in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so)
==4464== by 0x4E58F84: FcStrSetDestroy (fcstr.c:1236)
==4464== by 0x4E3F0C6: FcConfigSubstituteWithPat (fccfg.c:1507)
==4464== by 0x4E3F8F4: FcConfigSubstitute (fccfg.c:1729)
==4464== by 0x4009FA: test_match (simple-pthread-test.c:53)
==4464== by 0x400A6E: run_test_in_thread (simple-pthread-test.c:68)
==4464== by 0x507EE99: start_thread (pthread_create.c:308)
Thread test is running happily now. Will add the test in a moment.
We used to have a shared-str pool. Removed to make thread-safety
work easier. My measurements show that the extra overhead is not
significant by any means.
These never worked as intended. The problem is, if Fontconfig tries to
read config files when these new types / constants are not registered,
it errs. As a result, no defined types / constants are usable from
config files. Which makes these really useless. Xft was the only user
of this API and even there it's not really used. Just kill it.
One inch closer to thread-safety since we can fix the object-type hash
table at compile time.
The type will be resolved at runtime...
For example, we can do this now without getting a warning:
<match target="font">
<test name="scalable" compare="eq">
<bool>false</bool>
</test>
<edit name="pixelsizefixupfactor" mode="assign">
<divide>
<name target="pattern">pixelsize</name>
<name target="font" >pixelsize</name>
</divide>
</edit>
<edit name="matrix" mode="assign">
<times>
<name>matrix</name>
<matrix>
<name>pixelsizefixupfactor</name> <double>0</double>
<double>0</double> <name>pixelsizefixupfactor</name>
</matrix>
</times>
</edit>
<edit name="size" mode="assign">
<divide>
<name>size</name>
<name>pixelsizefixupfactor</name>
</divide>
</edit>
</match>
Previously the last edit was generating:
Fontconfig warning: "/home/behdad/.local/etc/fonts/conf.d/00-scale-bitmap-fonts.conf", line 29: saw unknown, expected number
Based on idea from Raimund Steger.
For example, one can do something like this:
<match target="font">
<test name="scalable" compare="eq">
<bool>false</bool>
</test>
<edit name="pixelsizefixupfactor" mode="assign">
<divide>
<name target="pattern">pixelsize</name>
<name target="font" >pixelsize</name>
</divide>
</edit>
<edit name="matrix" mode="assign">
<times>
<name>matrix</name>
<matrix>
<name>pixelsizefixupfactor</name> <double>0</double>
<double>0</double> <name>pixelsizefixupfactor</name>
</matrix>
</times>
</edit>
</match>
Part of work to make bitmap font scaling possible. See thread
discussion:
http://lists.freedesktop.org/archives/fontconfig/2012-December/004498.html
Previously a <matrix> element could only accept four <double> literals.
It now accepts full expressions, which can in turn poke into the
pattern, do math, etc.
Akira TAGOH
Behdad Esfahbod
Alan Coopersmith
Sebastian Freundt