Re: [dev] Suckless font rendering library

From: Alexander Krotov <>
Date: Sun, 15 May 2016 20:28:20 +0300

On Sat, May 14, 2016 at 09:03:44PM +0200, robin wrote:
> So i took up the challenge of making a suckless font rendering library.
> The problem: my lvl is barely above noob.
> Maybe it will spark some motivation in someone more talented.

I have submitted a pull request with random fixes.

How about dropping "copyright" field from the file format? It is
completely useless, we don't have "copyright" fields in ELF, farbfeld
and many other file formats. Copyright should be placed in separate .txt
file, if not abolished. Some fonts are in public domain (such as "fixed"
X11 font AFAIK) even.

Need to state somewhere that it is a vector format, as bitmap fonts are
already ok. dwm supported bitmap fonts only before it switched to Xft.
Plan 9 font format is bitmap [1], it is used internally for all font
rendering, and also it is the only font format supported in Go [2].

There is a FreeType port [3] for Plan 9 to prerender existing
vector fonts, but it may be a bad idea to prerender fonts offline instead
of caching them in memory due to file size. So tinyfont can complement
subfont format in the field of vector fonts. Following subfont
file format, but replacing bitmaps with vector glyphs may be a good direction.

I wonder if ascent/descent can be removed completely. If you want
to draw two words in different fonts, next to each other, they may have
different height. In this case line height would be max(height1, height2),
but you would need to adjust Y coordinate so baselines of fonts match.
If you only know the height, you don't know where baseline is, so you
can't adjust their baselines to match.

Received on Sun May 15 2016 - 19:28:20 CEST

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