https://github.com/katyo/msdfgen-rs
Rust bindings to msdfgen library
https://github.com/katyo/msdfgen-rs
Last synced: 3 months ago
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Rust bindings to msdfgen library
- Host: GitHub
- URL: https://github.com/katyo/msdfgen-rs
- Owner: katyo
- Created: 2020-02-24T19:43:09.000Z (over 5 years ago)
- Default Branch: master
- Last Pushed: 2024-04-05T03:23:03.000Z (over 1 year ago)
- Last Synced: 2025-03-23T21:11:37.553Z (4 months ago)
- Language: Rust
- Size: 134 KB
- Stars: 23
- Watchers: 3
- Forks: 9
- Open Issues: 3
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Metadata Files:
- Readme: README.md
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README
# Safe bindings to msdfgen library
[](https://github.com/katyo/msdfgen-rs)
[](https://crates.io/crates/msdfgen)
[](https://docs.rs/msdfgen)
[](https://opensource.org/licenses/MIT)
[](https://github.com/katyo/msdfgen-rs/actions?query=workflow%3ARust)## Crates
- [msdfgen-sys](https://crates.io/crates/msdfgen-sys) Low-level unsafe bindings generated using bindgen.
- [msdfgen](https://crates.io/crates/msdfgen) High-level safe bindings which should be used by applications.## Features
- __ttf-parse__ Enables [ttf-parser](https://crates.io/crates/ttf-parser) crate integration which allows create shapes for glyphs of specific font.
- __font__ Enables [font](https://crates.io/crates/font) crate integration which allows create shapes for glyphs of specific font.
- __freetype-rs__ Enables [freetype-rs](https://crates.io/crates/freetype-rs) crate integration which allows create shapes for glyphs of specific font.
- __png__ Enables [png](https://crates.io/crates/png) crate integration which allows load and save bitmaps from/as PNG images.
- __all__ Meta-feature which enables all supported features.## Usage
```no_run
use std::fs::File;
use notosans::REGULAR_TTF as FONT;
use ttf_parser::Face;
use msdfgen::{FontExt, Bitmap, Gray, Range, MsdfGeneratorConfig, FillRule, MID_VALUE};let font = Face::from_slice(&FONT, 0).unwrap();
let glyph = font.glyph_index('A').unwrap();
let mut shape = font.glyph_shape(glyph).unwrap();
let width = 32;
let height = 32;let bound = shape.get_bound();
let framing = bound.autoframe(width, height, Range::Px(4.0), None).unwrap();
let fill_rule = FillRule::default();let mut bitmap = Bitmap::new(width, height);
shape.edge_coloring_simple(3.0, 0);
let config = MsdfGeneratorConfig::default();
shape.generate_msdf(&mut bitmap, &framing, &config);
// optionally
shape.correct_sign(&mut bitmap, &framing, fill_rule);
shape.correct_msdf_error(&mut bitmap, &framing, &config);let error = shape.estimate_error(&mut bitmap, &framing, 5, Default::default());
println!("Estimated error: {}", error);
bitmap.flip_y();
let mut output = File::create("A-letter-msdf.png").unwrap();
bitmap.write_png(&mut output).unwrap();let mut preview = Bitmap::>::new(width * 10, height * 10);
bitmap.render(&mut preview, Default::default(), MID_VALUE);let mut output = File::create("A-letter-preview.png").unwrap();
preview.write_png(&mut output).unwrap();
```