egui/crates/egui_glow
valadaptive 7ac137bfc1
Make the font atlas use a color image (#7298)
* [x] I have followed the instructions in the PR template

Splitting this out from the Parley work as requested. This removes
`FontImage` and makes the font atlas use a `ColorImage`. It converts
alpha to coverage at glyph-drawing time, not at delta-upload time.

This doesn't do much now, but will allow for color emoji rendering once
we start using Parley.

I've changed things around so that we pass in `text_alpha_to_coverage`
to the `Fonts` the same way we do with `pixels_per_point` and
`max_texture_side`, reusing the existing code to check if the setting
differs and recreating the font atlas if so. I'm not quite sure why this
wasn't done in the first place.

I've left `ImageData` as an enum for now, in case we want to add support
for more texture pixel formats in the future (which I personally think
would be worthwhile). If you'd like, I can just remove that enum
entirely.
2025-07-04 13:15:48 +02:00
..
examples Enable more clippy lints (#6853) 2025-04-24 17:32:50 +02:00
src Make the font atlas use a color image (#7298) 2025-07-04 13:15:48 +02:00
CHANGELOG.md Release 0.31.1 - text_edit and kittest fixes 2025-03-05 08:37:34 +01:00
Cargo.toml Rename `master` branch to `main` (#7034) 2025-05-08 09:15:42 +02:00
README.md Rename `master` branch to `main` (#7034) 2025-05-08 09:15:42 +02:00

README.md

egui_glow

Latest version Documentation MIT Apache

This crates provides bindings between egui and glow which allows you to:

  • Render egui using glow on both native and web.
  • Write cross platform native egui apps (with the winit feature).

To write web apps using glow you can use eframe (which uses egui_glow for rendering).

To use on Linux, first run:

sudo apt-get install libxcb-render0-dev libxcb-shape0-dev libxcb-xfixes0-dev libxkbcommon-dev libssl-dev

This crate optionally depends on egui-winit.

Test the example with:

cargo run -p egui_glow --example pure_glow --features=winit,egui/default_fonts