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Add benchmark for text layout and tesselation

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This commit is contained in:
Emil Ernerfeldt
2021-02-08 22:53:31 +01:00
parent f5431f308a
commit 1c415bd8fe
4 changed files with 46 additions and 4 deletions
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37
egui_demo_lib/benches/benchmark.rs
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@@ -1,5 +1,7 @@
use criterion::{criterion_group, criterion_main, Criterion};
use egui_demo_lib::LOREM_IPSUM_LONG;
pub fn criterion_benchmark(c: &mut Criterion) {
let raw_input = egui::RawInput::default();
@@ -47,12 +49,45 @@ pub fn criterion_benchmark(c: &mut Criterion) {
egui::CentralPanel::default().show(&ctx, |ui| {
c.bench_function("label", |b| {
b.iter(|| {
ui.label(egui_demo_lib::LOREM_IPSUM_LONG);
ui.label(LOREM_IPSUM_LONG);
})
});
});
let _ = ctx.end_frame();
}
{
let pixels_per_point = 1.0;
let wrap_width = 512.0;
let text_style = egui::TextStyle::Body;
let fonts = egui::paint::text::Fonts::from_definitions(
pixels_per_point,
egui::FontDefinitions::default(),
);
let font = &fonts[text_style];
c.bench_function("text layout", |b| {
b.iter(|| font.layout_multiline(LOREM_IPSUM_LONG.to_owned(), wrap_width))
});
let galley = font.layout_multiline(LOREM_IPSUM_LONG.to_owned(), wrap_width);
let mut tesselator = egui::paint::Tessellator::from_options(Default::default());
let mut mesh = egui::paint::Mesh::default();
c.bench_function("tesselate text", |b| {
b.iter(|| {
let fake_italics = false;
tesselator.tessellate_text(
&fonts,
egui::Pos2::ZERO,
&galley,
text_style,
egui::Color32::WHITE,
fake_italics,
&mut mesh,
);
mesh.clear();
})
});
}
}
criterion_group!(benches, criterion_benchmark);