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Re: OpenType with CFF outlines
From: |
Tom Kacvinsky |
Subject: |
Re: OpenType with CFF outlines |
Date: |
Tue, 27 Jun 2000 10:24:09 -0400 (EDT) |
I can tell you one place where memeory is getting stomped on:
the name_index data.
Disassembling the font one way, I see that the name data off_size
is 1, there is exactly one entry and the two offsets are 1 and 21,
resp. When T2_Get_Name is called, the first offset is all of a
sudden 408. Looking at the intervening calls, I can't see where
memory is getting stomped, unless you have change t2parse.c
*significantly*.
On Tue, 27 Jun 2000, David Turner wrote:
> Sorry for taking so long to answer, but I believe that the problem
> with CFF comes from a bug in the loader that much probably overwrites
> some memory structures (electric fence doesn't catch everything, as
> you probably know)..
>
> I'm currently hacking this code (in order to support CID fonts) and
> quite a few things have changed. Please wait for a few days for more
> info..
>
> Cheers,
>
> - David
>
> Werner LEMBERG a écrit :
> >
> > > I can reproduce this problem on the following platform:
> > >
> > > Linux trillian 2.2.15 #1 Tue May 16 09:58:41 EDT 2000 i686 unknown
> > >
> > > freetype was compiled with egcs-2.91.66. Here is the bt (looks
> > > similar to Sivan's):
> >
> > Can you try to link the demo programs with efence (or a similar memory
> > alloc debugger library)? Maybe this yields more details.
> >
> > make EFENCE=-lefence
> >
> > Werner
>
- Re: Weirdness with FT_Alloc [was: OpenType with CFF outlines], (continued)
- Re: Weirdness with FT_Alloc [was: OpenType with CFF outlines], Tom Kacvinsky, 2000/06/27
- Re: Weirdness with FT_Alloc [was: OpenType with CFF outlines], Werner LEMBERG, 2000/06/28
- Re: OpenType with CFF outlines, Tom Kacvinsky, 2000/06/27
- Re: OpenType with CFF outlines, Werner LEMBERG, 2000/06/27
- Re: OpenType with CFF outlines, Tom Kacvinsky, 2000/06/27
- Re: OpenType with CFF outlines, David Turner, 2000/06/27
- Re: OpenType with CFF outlines,
Tom Kacvinsky <=
- Re: OpenType with CFF outlines, Tom Kacvinsky, 2000/06/27