112 lines
3.7 KiB
Rust
112 lines
3.7 KiB
Rust
use criterion::{criterion_group, criterion_main, Criterion};
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use egui::epaint::TextShape;
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use egui_demo_lib::LOREM_IPSUM_LONG;
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pub fn criterion_benchmark(c: &mut Criterion) {
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let raw_input = egui::RawInput::default();
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{
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let mut ctx = egui::CtxRef::default();
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let mut demo_windows = egui_demo_lib::DemoWindows::default();
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// The most end-to-end benchmark.
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c.bench_function("demo_with_tessellate__realistic", |b| {
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b.iter(|| {
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let (_output, shapes) = ctx.run(raw_input.clone(), |ctx| {
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demo_windows.ui(ctx);
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});
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ctx.tessellate(shapes)
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})
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});
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c.bench_function("demo_no_tessellate", |b| {
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b.iter(|| {
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ctx.run(raw_input.clone(), |ctx| {
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demo_windows.ui(ctx);
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})
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})
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});
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let (_output, shapes) = ctx.run(raw_input.clone(), |ctx| {
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demo_windows.ui(ctx);
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});
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c.bench_function("demo_only_tessellate", |b| {
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b.iter(|| ctx.tessellate(shapes.clone()))
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});
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}
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if false {
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let mut ctx = egui::CtxRef::default();
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ctx.memory().set_everything_is_visible(true); // give us everything
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let mut demo_windows = egui_demo_lib::DemoWindows::default();
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c.bench_function("demo_full_no_tessellate", |b| {
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b.iter(|| {
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ctx.run(raw_input.clone(), |ctx| {
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demo_windows.ui(ctx);
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})
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})
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});
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}
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{
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let mut ctx = egui::CtxRef::default();
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let _ = ctx.run(raw_input, |ctx| {
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egui::CentralPanel::default().show(ctx, |ui| {
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c.bench_function("label &str", |b| {
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b.iter(|| {
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ui.label("the quick brown fox jumps over the lazy dog");
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})
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});
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c.bench_function("label format!", |b| {
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b.iter(|| {
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ui.label("the quick brown fox jumps over the lazy dog".to_owned());
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})
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});
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});
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});
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}
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{
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let pixels_per_point = 1.0;
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let wrap_width = 512.0;
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let text_style = egui::TextStyle::Body;
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let color = egui::Color32::WHITE;
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let fonts =
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egui::epaint::text::Fonts::new(pixels_per_point, egui::FontDefinitions::default());
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c.bench_function("text_layout_uncached", |b| {
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b.iter(|| {
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use egui::epaint::text::{layout, LayoutJob};
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let job = LayoutJob::simple(
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LOREM_IPSUM_LONG.to_owned(),
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egui::TextStyle::Body,
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color,
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wrap_width,
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);
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layout(&fonts, job.into())
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})
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});
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c.bench_function("text_layout_cached", |b| {
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b.iter(|| fonts.layout(LOREM_IPSUM_LONG.to_owned(), text_style, color, wrap_width))
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});
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let galley = fonts.layout(LOREM_IPSUM_LONG.to_owned(), text_style, color, wrap_width);
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let mut tessellator = egui::epaint::Tessellator::from_options(Default::default());
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let mut mesh = egui::epaint::Mesh::default();
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let text_shape = TextShape::new(egui::Pos2::ZERO, galley);
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c.bench_function("tessellate_text", |b| {
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b.iter(|| {
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tessellator.tessellate_text(
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fonts.font_image().size(),
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text_shape.clone(),
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&mut mesh,
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);
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mesh.clear();
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})
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});
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}
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}
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criterion_group!(benches, criterion_benchmark);
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criterion_main!(benches);
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