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I’m trying out FTGLES to dynamically display text in arbitrary fonts on OpenGL-ES on iOS (cf. my SO question here). That library seems to require direct access to the TTF file to use the font. Using kosher methods, can one directly access — by path — the system font files on iOS? I’ve RTFM’d and couldn’t find anything.
Barring that, does anyone know if it is Apple-approved to copy the system fonts into your app (before submission).
My solution was inspired by skia.
Though cannot access system built-in font files directly, we still have an indirect way:
Create a CGFont with your wanted font name, all contents of SFNT table of this CGFont can be accessed by simply calling CGFontCopyTableTags() and CGFontCopyTableForTag().
A ttf/otf font data can then be constructed by using these tables, save the new created font to disk, you can use it in FTGL ES later.