There are two implementations, using fixed and floating point math. The fixed
point implementation benchmarks 1.3 to 1.4 times faster on GOARCH=amd64, but
may have rendering artifacts above 1024 ppem. It uses mostly int32 math,
although some int64 and float32 math is used for numerical accuracy.
You can visually inspect rasterization by running:
cd floating
go build && ./floating
and viewing the resultant out.png file.
To run the benchmarks with and without SIMD assembler:
go test -test.bench=.
go test -test.bench=. -tags=noasm
Authors
The main author is Nigel Tao.
Contributions
We gladly accept contributions via GitHub pull requests, as long as the author
has signed the Google Contributor License. Please see CONTRIBUTIONS.md for more
details.
Disclaimer
This is not an official Google product (experimental or otherwise), it is just
code that happens to be owned by Google.
font-go
The canonical repository’s location moved on February 2026, from github.com/google/font-go to github.com/nigeltao/font-go
This is a port of https://github.com/google/font-rs to the Go programming language.
There are two implementations, using fixed and floating point math. The fixed point implementation benchmarks 1.3 to 1.4 times faster on GOARCH=amd64, but may have rendering artifacts above 1024 ppem. It uses mostly int32 math, although some int64 and float32 math is used for numerical accuracy.
You can visually inspect rasterization by running:
and viewing the resultant out.png file.
To run the benchmarks with and without SIMD assembler:
Authors
The main author is Nigel Tao.
Contributions
We gladly accept contributions via GitHub pull requests, as long as the author has signed the Google Contributor License. Please see CONTRIBUTIONS.md for more details.
Disclaimer
This is not an official Google product (experimental or otherwise), it is just code that happens to be owned by Google.