Re: [ft-devel] Really serious FT bug

[Rogier van Dalen]

On 8/20/05, Werner LEMBERG <address@hidden> wrote:
> 
> From: Rogier van Dalen <address@hidden>
> > FWIW: someone reported a similar problem in my TrueType loading
> > code, for another font. I was not sure this was due to a bug in my
> > code.  My guess was, though I have not yet had the time to check it,
> > that the font set bit 2 of "flags" in the "head" table, which
> > according to http://www.microsoft.com/typography/otspec/head.htm
> > means "Left sidebearing point at x=0". This might lead an
> > unsuspecting operating system to mask a bug in the font.
> 
> Indeed, the font in question (Gotyk3.ttf) has the `left sidebearing
> point at x=0' bit set; with other words, the font is buggy.
> 
> What do you think of translating only if this bit in the `head' table
> is set?  Currently, FreeType ignores it, but it seems that Windows
> uses it.  Rogier, how do you handle this your engine?

Ermmm, I ermmm, just don't, basically. I have other priorities than
the Freetype project: buggy fonts tend to look buggy on my rasteriser,
and I'm happy with that. The strategy you propose sounds good to me,
though I think you forgot a "not".

Regards,
Rogier