Re: [Ftgl-devel] Thai output crash

[Michael M. <ar...@gm...>]

On Tue, Dec 14, 2010 at 10:18 PM, Sam Hocevar <sa...@ho...> wrote:
> On Tue, Dec 14, 2010, Michael Menegakis wrote:
>> For some inexplicable reason (by me) Thai output from google translate
>> crashes the client I'm working on on windows (Other languages didn't
>> do it, I'm not Thai but I was trying them all). It does not on linux.
>> It could be internal memory related. I check in case it was my
>> client's memory but it didn't crash on other languages with possibly
>> 4-byte output (and it didn't crash on linux). t
>>
>> It's the same behavior on 64 and 32bit binaries of windows.
>
>   Could you maybe paste a Thai string that shows the behaviour? Was it
> using UTF-8?
>
> Thanks,
> --
> Sam.

Actually, I did manage to crash it even on Linux. Luckily there is
readable outcome:

\translate Sweden tonight decided to fight a British judge's decision
to grant bail to WikiLeaks founder Julian Assange
translated: สวีเดนคืนนี้ตัดสินใจที่จะต่อสู้กับการตัดสินใจของผู้พิพากษาของอังกฤษในการให้ประกันตัวเพื่อ
WikiLeaks ผู้ก่อตั้ง Julian Assange
Program received signal SIGSEGV, Segmentation fault.
0x00007fffbf402bb6 in FTCharmap::GlyphListIndex(unsigned int) () from
/usr/lib/libftgl.so.2
(gdb) bt
#0  0x00007fffbf402bb6 in FTCharmap::GlyphListIndex(unsigned int) ()
from /usr/lib/libftgl.so.2
#1  0x00007fffbf4060fd in FTGlyphContainer::Glyph(unsigned int) const
() from /usr/lib/libftgl.so.2
#2  0x00007fffbf40cecf in FTFontImpl::CheckGlyph(unsigned int) () from
/usr/lib/libftgl.so.2
#3  0x00007fffbf40e126 in FTFontImpl::Render(char const*, int,
FTPoint, FTPoint, int) () from /usr/lib/libftgl.so.2
#4  0x00007fffbf413255 in FTTextureFontImpl::Render(char const*, int,
FTPoint, FTPoint, int) () from /usr/lib/libftgl.so.2
#5  0x00007fffbf40cd03 in FTFont::Render(char const*, int, FTPoint,
FTPoint, int) () from /usr/lib/libftgl.so.2
#6  0x00007fffbf40ed39 in ftglRenderFont () from /usr/lib/libftgl.so.2
#7  0x000000000040eb3f in Unicode_Render () at
code/ioq3-urt/ioq3-urt_Unicode.c:238

The 'translated' output is what is FTGL rendered.

There's no problem with other UTF output. e.g. On Greek:

\translate Sweden tonight decided to fight a British judge's decision
to grant bail to WikiLeaks founder Julian Assange
translated: Η Σουηδία αποφάσισε απόψε για την καταπολέμηση της
απόφασης της βρετανικής δικαστή να χορηγήσει εγγύηση για να ιδρυτή
Wikileaks Julian Assange

No crash and normal render.

PS. I wonder if Thai is 'more bytes' than Greek and I overflow
something though I had they impression they are both 4 bytes on UTF-8?
(not sure at all though).

The font used is the open source LiberationSerif-Regular.ttf though
it's unstable also on arial.ttf.