Aras Pranckevičiuskb_text_shape.h - "Single-header C/C++ text segmentation and shaping in ~22kloc" https://github.com/JimmyLefevre/kb (FYI @MikkoMononen)
Mikko Mononen@aras Really cool, thanks for sharing!
🌾 ivan 🌱@aras this is exactly what i've been looking for, thank you!!
James Widman@aras @MikkoMononen text-shaping newbie question: what benefit would i gain from using this instead of harbuzz?
@JamesWidman @aras It is smaller (if that matters), and also code for figuring out the bidi runs and word/line breaks.
@MikkoMononen @aras ah, i see: harfbuzz does shaping, but not segmentation
PythagoRascal@MikkoMononen @JamesWidman @aras maybe also the opposite question (besides the noted caveat about no rasterization): what does Hardbuzz do that this doesn't / can't?
@PythagoRascal @JamesWidman @aras probably a lot of backwards compatibility stuff, and it has also API to get font metrics, glyph outlines. Metrics needed for font selection and layout, glyph stuff for rendering.
@MikkoMononen @PythagoRascal @aras also, i would imagine that, because HarfBuzz is so widely used & tested, it may handle some corner cases that kb does not...?
In which case, i might not want to depend on kb in the feature-complete version of a shipping product...
*However*, if i'm in a rapid-prototyping phase, or just doing some quick one-off experiments, then i might gladly sacrifice HarfBuzz's completeness in exchange for the relative ease of dropping kb's one small header into my src dir.
Jimmy Lefevre@JamesWidman @aras @MikkoMononen
Slower at read-time, much faster at runtime.
Better API. No implicit memory allocation, no callbacks.
Easy to compile without LIBC, if that's your thing :)
Slower at read-time, much faster at runtime.
Better API. No implicit memory allocation, no callbacks.
Easy to compile without LIBC, if that's your thing :)
Silverweed@aras
"Hmm, that coding style reminds me of Casey's"
> looks at the author's profile
> Handmade Hero logo
Checks out. This increases the likelihood that it's a well made library.
"Hmm, that coding style reminds me of Casey's"
> looks at the author's profile
> Handmade Hero logo
Checks out. This increases the likelihood that it's a well made library.
Mathias WesterdahlHi!
I'm currently testing it out, and I'm doing comparisons between KB and libRaqm/Harfbuzz. Currently, my performance numbers are a bit off I think.
Do any of you happen to have some benchmark codeand/or results one could have a look at? I'd like to know I've set it up correctly 🤔
@jcash @aras I dont know an existing benchmark, curious to see what you find out.
Do you have a specific metric you want to measure?
libgraphme as bidi/break related benchmarks: https://libs.suckless.org/libgrapheme/
and harfbuzz has shaping related benchmarks: https://github.com/harfbuzz/harfbuzz/blob/main/perf/README.md
Cosmic text also has a benches: https://github.com/pop-os/cosmic-text/tree/main/benches
The cosmic benches will need font fallback setup, which neither of your tested systems support, though. Maybe it could be adapted.
Thanks!
I think I'll look into running the Harfbuzz tests!
My current test om macOS M1 seems it's doing good, but not seeing the same numbers as the author.
https://github.com/JimmyLefevre/kb/issues/21
