90 lines
2.7 KiB
Rust
90 lines
2.7 KiB
Rust
//! Text pipeline benchmark.
|
|
//!
|
|
//! Continuously recomputes a large block of text with 100 text spans.
|
|
|
|
use bevy::{
|
|
color::palettes::basic::{BLUE, YELLOW},
|
|
diagnostic::{FrameTimeDiagnosticsPlugin, LogDiagnosticsPlugin},
|
|
prelude::*,
|
|
text::{LineBreak, TextBounds},
|
|
window::{PresentMode, PrimaryWindow, WindowResolution},
|
|
winit::{UpdateMode, WinitSettings},
|
|
};
|
|
|
|
fn main() {
|
|
App::new()
|
|
.add_plugins((
|
|
DefaultPlugins,
|
|
FrameTimeDiagnosticsPlugin::default(),
|
|
LogDiagnosticsPlugin::default(),
|
|
))
|
|
.insert_resource(WinitSettings {
|
|
focused_mode: UpdateMode::Continuous,
|
|
unfocused_mode: UpdateMode::Continuous,
|
|
})
|
|
.add_observer(configure_window)
|
|
.add_systems(Startup, spawn)
|
|
.add_systems(Update, update_text_bounds)
|
|
.run();
|
|
}
|
|
|
|
fn configure_window(trigger: On<Add, PrimaryWindow>, mut window: Query<&mut Window>) {
|
|
let mut window = window.get_mut(trigger.target()).unwrap();
|
|
window.resolution = WindowResolution::new(1920.0, 1080.0).with_scale_factor_override(1.0);
|
|
window.present_mode = PresentMode::AutoNoVsync;
|
|
}
|
|
|
|
fn spawn(mut commands: Commands, asset_server: Res<AssetServer>) {
|
|
warn!(include_str!("warning_string.txt"));
|
|
|
|
commands.spawn(Camera2d);
|
|
|
|
let make_spans = |i| {
|
|
[
|
|
(
|
|
TextSpan("text".repeat(i)),
|
|
TextFont {
|
|
font: asset_server.load("fonts/FiraMono-Medium.ttf"),
|
|
font_size: (4 + i % 10) as f32,
|
|
..Default::default()
|
|
},
|
|
TextColor(BLUE.into()),
|
|
),
|
|
(
|
|
TextSpan("pipeline".repeat(i)),
|
|
TextFont {
|
|
font: asset_server.load("fonts/FiraSans-Bold.ttf"),
|
|
font_size: (4 + i % 11) as f32,
|
|
..default()
|
|
},
|
|
TextColor(YELLOW.into()),
|
|
),
|
|
]
|
|
};
|
|
|
|
let spans = (1..50).flat_map(|i| make_spans(i).into_iter());
|
|
|
|
commands
|
|
.spawn((
|
|
Text2d::default(),
|
|
TextLayout {
|
|
justify: Justify::Center,
|
|
linebreak: LineBreak::AnyCharacter,
|
|
},
|
|
TextBounds::default(),
|
|
))
|
|
.with_children(|p| {
|
|
for span in spans {
|
|
p.spawn(span);
|
|
}
|
|
});
|
|
}
|
|
|
|
// changing the bounds of the text will cause a recomputation
|
|
fn update_text_bounds(time: Res<Time>, mut text_bounds_query: Query<&mut TextBounds>) {
|
|
let width = (1. + ops::sin(time.elapsed_secs())) * 600.0;
|
|
for mut text_bounds in text_bounds_query.iter_mut() {
|
|
text_bounds.width = Some(width);
|
|
}
|
|
}
|