106 lines
3.4 KiB
Rust
106 lines
3.4 KiB
Rust
use criterion::{criterion_group, criterion_main, Criterion};
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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_windows_minimal with tesselation (realistic)", |b| {
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b.iter(|| {
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ctx.begin_frame(raw_input.clone());
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demo_windows.ui(&ctx);
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let (_, shapes) = ctx.end_frame();
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ctx.tessellate(shapes)
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})
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});
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c.bench_function("demo_windows_minimal (no tesselation)", |b| {
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b.iter(|| {
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ctx.begin_frame(raw_input.clone());
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demo_windows.ui(&ctx);
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ctx.end_frame()
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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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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_windows_full", |b| {
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b.iter(|| {
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ctx.begin_frame(raw_input.clone());
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demo_windows.ui(&ctx);
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ctx.end_frame()
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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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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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ctx.begin_frame(raw_input.clone());
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demo_windows.ui(&ctx);
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let (_, shapes) = ctx.end_frame();
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c.bench_function("tessellate", |b| b.iter(|| ctx.tessellate(shapes.clone())));
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}
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{
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let mut ctx = egui::CtxRef::default();
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ctx.begin_frame(raw_input);
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egui::CentralPanel::default().show(&ctx, |ui| {
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c.bench_function("label", |b| {
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b.iter(|| {
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ui.label(LOREM_IPSUM_LONG);
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})
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});
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});
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let _ = ctx.end_frame();
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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 fonts = egui::epaint::text::Fonts::from_definitions(
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pixels_per_point,
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egui::FontDefinitions::default(),
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);
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let font = &fonts[text_style];
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c.bench_function("text layout (uncached)", |b| {
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b.iter(|| font.layout_multiline(LOREM_IPSUM_LONG.to_owned(), wrap_width))
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});
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c.bench_function("text layout (cached)", |b| {
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b.iter(|| fonts.layout_multiline(text_style, LOREM_IPSUM_LONG.to_owned(), wrap_width))
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});
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let galley = font.layout_multiline(LOREM_IPSUM_LONG.to_owned(), 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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c.bench_function("tessellate text", |b| {
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b.iter(|| {
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let fake_italics = false;
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tessellator.tessellate_text(
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&fonts,
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egui::Pos2::ZERO,
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&galley,
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egui::Color32::WHITE,
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fake_italics,
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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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