Re: How to know the exact number of glyphs for CID keyed fonts?

> - Is there any existing API that I can hack to retrieve the real
> number of contiguous glyphs in the font?
> - why isn't there simply a couple of specialized methods to retrieve
> the real glyph count and to load the glyph by contiguous indices?

I don't understand what you mean by "real glyph count", and
I don't understand what you mean by "contiguous indices".

Please could you give another explanation with a concrete usecase
showing the reason why you need such?

Regards,
mpsuzuki

On 2024/12/30 18:32, Francesco Pretto wrote:
> Hello,
> 
> I noticed there exists FT_Get_CID_From_Glyph_Index[1] that allows you
> to access glyphs by a contiguous random index, albeit it may be
> suboptimal because it still ends requiring glyphs to be accessed with
> the fetched CID. While this works, I am still missing a method that
> can return the exact number of contiguous glyphs in a CID keyed font,
> which can be quite informative. FT_FaceRec.num_glyphs for CID keyed
> fonts is really the number of last CID - 1, so it's not the correct
> number. Questions are:
> - Is there any existing API that I can hack to retrieve the real
> number of contiguous glyphs in the font?
> - why isn't there simply a couple of specialized methods to retrieve
> the real glyph count and to load the glyph by contiguous indices?
> 
> Cheers,
> Francesco
> 
> [1] https://freetype.org/freetype2/docs/reference/ft2-cid_fonts.html#ft_get_cid_from_glyph_index
> [2] https://freetype.org/freetype2/docs/reference/ft2-face_creation.html#ft_facerec
>