egui/crates/egui_demo_lib
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
..
benches Make the font atlas use a color image (#7298) 2025-07-04 13:15:48 +02:00
data Fix incorrect color fringe colors on SVG:s (#7069) 2025-05-21 17:18:36 +02:00
src Remove `SelectableLabel` (#7277) 2025-07-03 16:34:47 +02:00
tests/snapshots Improve text rendering in light mode (#7290) 2025-07-02 14:58:37 +02:00
Cargo.toml Include test windows in `egui_demo_lib` snapshot tests (#7070) 2025-05-21 17:44:27 +02:00
README.md Add button benchmark (#6854) 2025-04-28 11:58:05 +02:00

README.md

egui demo library

Latest version Documentation unsafe forbidden MIT Apache

This crate contains example code for egui.

The demo library is a separate crate for three reasons:

This crate also contains benchmarks for egui. Run them with

# Run all benchmarks
cargo bench -p egui_demo_lib 

# Run a single benchmark
cargo bench -p egui_demo_lib "benchmark name"

# Profile benchmarks with cargo-flamegraph (--root flag is necessary for MacOS)
CARGO_PROFILE_BENCH_DEBUG=true cargo flamegraph --bench benchmark --root -p egui_demo_lib  -- --bench "benchmark name"

# Profile with cargo-instruments
CARGO_PROFILE_BENCH_DEBUG=true cargo instruments --profile bench --bench benchmark -p egui_demo_lib -t time -- --bench "benchmark name"