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New test scene: hugepath #542

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New test scene: hugepath #542

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a887a10
New test scene: `hugepath`
armansito Apr 3, 2024
4cc5bfc
Run cargo fmt
armansito Apr 8, 2024
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26 changes: 26 additions & 0 deletions examples/scenes/src/test_scenes.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -59,6 +59,7 @@ pub fn test_scenes() -> SceneSet {
scene!(robust_paths),
scene!(base_color_test: animated),
scene!(clip_test: animated),
scene!(hugepath),
scene!(longpathdash(Cap::Butt), "longpathdash (butt caps)", false),
scene!(longpathdash(Cap::Round), "longpathdash (round caps)", false),
scene!(crate::mmark::MMark::new(80_000), "mmark", false),
Expand Down Expand Up @@ -560,6 +561,31 @@ fn cardioid_and_friends(scene: &mut Scene, _: &mut SceneParams) {
//render_tiger(scene, false);
}

// Adapted from "path_huge_crbug_800804" GM in Skia:
// `github.com/google/skia/blob/0d4d11451c4f4e184305cbdbd67f6b3edfa4b0e3/gm/hugepath.cpp`
fn hugepath(scene: &mut Scene, params: &mut SceneParams) {
use PathEl::*;
let widths = [0.9, 1.0, 1.1];
let path1 = [
MoveTo((-1000., 12345678901234567890.).into()),
LineTo((10.5, 200.).into()),
];
let path2 = [
MoveTo((30.5, 400.).into()),
LineTo((1000., -9.8765432109876543210e+19).into()),
];
let mut t = Affine::IDENTITY;
for w in widths {
let stroke = Stroke::new(w).with_caps(Cap::Butt).with_join(Join::Miter);
scene.stroke(&stroke, t, Color::YELLOW, None, &path1);
scene.stroke(&stroke, t, Color::CYAN, None, &path2);
t = Affine::translate((3., 0.)) * t;
}
params.resolution = Some(Vec2::new(50., 600.));
}

// Adapted from "longpathdash" GM in Skia.
// `github.com/google/skia/blob/0d4d11451c4f4e184305cbdbd67f6b3edfa4b0e3/gm/dashing.cpp`
fn longpathdash(cap: Cap) -> impl FnMut(&mut Scene, &mut SceneParams) {
use std::f64::consts::PI;
use PathEl::*;
Expand Down
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