Re: [ft] TrueType font subsetting

[Michael Day]

Hi Werner,

> In general, this is interesting stuff.  However, I'm not sure whether
> it really makes sense to add it directly to FreeType, since FreeType's
> job is not to build new fonts.  What kind of interface do you imagine?

The input would be:

 - an FT_Face representing a TrueType font
 - an array of glyph indices

The output would be:

 - a buffer containing a new TrueType font with the specified glyphs
 - an array mapping the old glyph indices to the new indices

There may also need to be a flag controlling charmap generation or some 
other minor details, but those are the important bits.

> What about creating a separate library to do that?

Right, we will write the code using FreeType types (FT_ULong etc.) and 
functions, then release it as a library. If there is interest in 
including it in the FreeType package it should be easy to add.

Best regards,

Michael

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