maplibre-rs/benchmarks/benches/render.rs

use criterion::{criterion_group, criterion_main, Criterion};
use maplibre::{
    coords::{WorldTileCoords, ZoomLevel},
    error::Error,
    headless::{create_headless_renderer, map::HeadlessMap},
    platform::run_multithreaded,
    style::Style,
};

fn headless_render(c: &mut Criterion) {
    c.bench_function("headless_render", |b| {
        let (mut map, tile) = run_multithreaded(async {
            let (kernel, renderer) = create_headless_renderer(1000, None).await;
            let style = Style::default();
            let map = HeadlessMap::new(style, renderer, kernel, false).unwrap();

            let tile = map
                .fetch_tile(
                    WorldTileCoords::from((0, 0, ZoomLevel::default())),
                    &["water"],
                )
                .await
                .expect("Failed to fetch and process!");

            (map, tile)
        });

        b.to_async(
            tokio::runtime::Builder::new_multi_thread()
                .enable_all()
                .build()
                .unwrap(),
        )
        .iter(|| {
            match map.render_tile(tile.clone()) {
                Ok(_) => {}
                Err(Error::Render(e)) => {
                    eprintln!("{}", e);
                    if e.should_exit() {}
                }
                e => eprintln!("{:?}", e),
            };
            async {}
        });
    });
}

criterion_group!(name = benches;
    config = Criterion::default().significance_level(0.1).sample_size(20);
    targets = headless_render);
criterion_main!(benches);