https://github.com/colleagueriley/rfont

Simple-to-use single header modular font rendering library written in C.
https://github.com/colleagueriley/rfont

font-library font-rendering fonts legacy-opengl lightweight linux macos modern-opengl modular opengl rgfw silicon simple-to-use single-header ttf windows

Last synced: 6 months ago
JSON representation

Simple-to-use single header modular font rendering library written in C.

• Host: GitHub
• URL: https://github.com/colleagueriley/rfont
• Owner: ColleagueRiley
• License: zlib
• Created: 2023-08-25T03:11:09.000Z (over 2 years ago)
• Default Branch: main
• Last Pushed: 2025-09-23T02:32:52.000Z (7 months ago)
• Last Synced: 2025-09-23T04:19:21.211Z (7 months ago)
• Topics: font-library, font-rendering, fonts, legacy-opengl, lightweight, linux, macos, modern-opengl, modular, opengl, rgfw, silicon, simple-to-use, single-header, ttf, windows
• Language: C
• Homepage:
• Size: 2.8 MB
• Stars: 45
• Watchers: 2
• Forks: 5
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

Awesome Lists containing this project

README

          
# RFont

![logo](logo.png)

![image](Screenshot.png)

Simple single header modular library for font rendering and atlas management.\

The library is designed to be lightweight, `RFont.h` itself does not directly handle rendering calls, it passes raw data to the user defined renderer.

`RFont_gl` and `RFont_gl1` serve as examples of user defined renderers.

RFont is written in Pure C89. It uses `stdint.h` and `inline` by default.

Adding `#define RFONT_C89` will use fallbacks for `stdint.h` and `inline`.

## Build statuses

![cplus workflow](https://github.com/ColleagueRiley/RFont/actions/workflows/linux.yml/badge.svg)

![cplus workflow windows](https://github.com/ColleagueRiley/RFont/actions/workflows/windows.yml/badge.svg)

![cplus workflow windows](https://github.com/ColleagueRiley/RFont/actions/workflows/macos.yml/badge.svg)

# Contacts

- email : ColleagueRiley@gmail.com

- discord : ColleagueRiley

- discord server : https://discord.gg/pXVNgVVbvh

# Documentation

For documentation read the `RFont.h` file and check out the example in `./example`

# uses

[A Terminal emulator created using RFont by Noxomix](https://github.com/noxomix/vterm_test)\

[RSGL (my GUI library)](https://github.com/ColleagueRiley/RSGL)

# Credits

# stb_truetype

RFont uses [stb_truetype](https://github.com/nothings/stb) for working with fonts.

A modified version of stb_truetype is included in the RFont header.\

But you can use an external copy by adding `#define RFONT_EXTERNAL_STB` to your code

# Fontstash

[Fontstash](https://github.com/memononen/fontstash) is another font rendering library with simular goals.

Fontash was used as a reference for some of this code.

However, this library is intended to have better perfromance and be more lightweight than fontstash.