Re: [ft] Bytecode hinter producing bad results, seems to be a regression

[Vinnie]

I'm ashamed to admit it but you are talking about things that are going WAY 
over my head. I tried to use those programs fontforge and ttx but I failed to 
get them to run. Something about needing Cygwin, which also generated errors 
when I tried to install that, and I don't understand TTX.

So my code is supposed to dig into the font file and figure out if hinting is 
supported? I thought FreeType was plug and go... I just want to open the font 
and get hinted outlines without worrying.

What is a monochrome rendering and how do I test it under Windows?

I'm not using FreeType to render...just to extract outlines.

And by the way, the autohinting module works pretty damn good!

--- On Sat, 1/1/11, Werner LEMBERG <address@hidden> wrote:

> From: Werner LEMBERG <address@hidden>
> Subject: Re: [ft] Bytecode hinter producing bad results, seems to be a 
> regression
> To: address@hidden
> Cc: address@hidden
> Date: Saturday, January 1, 2011, 9:43 AM
> 
> > check your font whether my assumption is
> correct.  I only have
> > `Helvetica Neue LT Pro 65 Medium' version 001.000
> (from 2003), but
> > this is an OpenType font with CFF outlines.
> 
> Accidentally, I've also found `Helvetica Neue LT Com 65
> Medium' (2.01
> from 2006).  My assumption was correct: The `gasp'
> table of this font
> asks for monochrome rendering in the range 9-15ppem.
> 
> However, I see strange hinting for certain ppem
> values.  For example,
> the monochrome version of `h' at 11ppem misses the left
> stem, or the
> `C' at 10ppem lacks the middle part (see attached
> image).  I *can't*
> believe that this is FreeType's fault, given that those
> strange
> rendering results are mainly due to DELTA instructions
> which shifts
> certain points at certain ppem values by a fixed
> amount.  Something's
> is going on here, and it would be interesting to know more
> details.
> 
> Do you have a chance to check monochrome rendering of this
> particular
> font on Windows?
> 
> 
>     Werner
>