[ft-devel] Re: xorg crashes with freetype2-2.1.10
Hin-Tak Leung
hintak_leung at yahoo.co.uk
Tue Jul 19 21:06:15 GMT 2005
Found the CVS entry:
http://savannah.nongnu.org/cgi-bin/viewcvs/freetype/freetype2/src/sfnt/sfdriver.c.diff?r1=1.71&r2=1.72
* include/freetype/internal/tttypes.h, src/sfnt/ttsbit.c, src/sfnt/ttsbit0.c,
src/truetype/ttobjs.c, src/cff/cffobjs.c, src/sfnt/sfobjs.c: implementing new
heap-optimized embedded bitmap loader. This one also fixes bug #12107
checked in by user 'freetype' (David Turner?). they were changed to NULL,
then to zero - there must be a reason?
Jeremy Messenger wrote:
> On Sun, 17 Jul 2005 15:24:40 -0500, Joe Marcus Clarke
> <marcus at FreeBSD.org> wrote:
>
>> Looks like the freetype module in xorg (and XFree86) makes reference to
>> SFNT_Service->find_sbit_image which is now 0 in FT 2.1.10 (it used to be
>> initialized to tt_find_sbit_image). This causes X to die rather
>> abruptly when trying to dereference this symbol:
>>
>> http://people.freebsd.org/~mezz/gdb/gdb-freetype2.txt
>>
>> I assume this was done by design in FT (though I couldn't find a commit
>> message that said spoke about this particular change). If so, what
>> should X be doing to correctly obtain the glyph sbit? Thanks!
>
>
> I have solved the crash. I have been using it for the thirty minutes
> and no crash so far. If I do unpatch and it will crash within five
> minutes. Here's patch to put in freetype2/files. Don't know if patch is
> right, but at least it's fixed for me.
>
> http://people.freebsd.org/~mezz/patch-src::sfnt::sfdriver.c
>
> I found it by compared freetype2 2.1.9 and 2.1.10, you can check if you
> want to see for youself. I removed compare of Makefile, configure and
> other useless stuff.
>
> http://people.freebsd.org/~mezz/freetype2-compare.diff.bz2
>
> It looks like 2.1.10 removed or disabled *find_sbit_image? Search for
> 'find_sbit_image' in freetype2-compare.diff.bz2.
>
> Cheers,
> Mezz
>
>> Joe
>
>
>
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