mirror of
https://github.com/storytold/photocraft.git
synced 2026-10-26 08:00:02 +00:00
David Mann
e306bcd685
A turned crop rotated the whole canvas, then cropped to the frame. With Delete Cropped Pixels on, every layer, mask and channel is now trimmed to the frame's source (plus the interpolation kernel's reach) before the turn, so the rotation costs the frame's size: a 512x442 frame turned 3° on a 3859x2594 two-layer document goes from 541 ms to 42 ms. Rotate Canvas also fills the Background with shared tiles instead of a canvas-sized float buffer. Co-authored-by: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
41 lines
1.8 KiB
Rust
41 lines
1.8 KiB
Rust
//! End-to-end timing of `image.crop`, upright and turned, on a two-layer document.
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//! `cargo run --release -p photocraft-engine --example bench_crop -- [image] [reps]`
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//! Without an image a 3859×2594 noise photo stands in (the size of the Great Wave scan).
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use std::time::{Duration, Instant};
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use photocraft_engine::Session;
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use serde_json::{Value, json};
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fn main() {
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let args: Vec<String> = std::env::args().collect();
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let reps: usize = args.get(2).and_then(|v| v.parse().ok()).unwrap_or(3);
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let mut s = Session::new();
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match args.get(1) {
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Some(path) => {
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let bytes = std::fs::read(path).expect("read the image");
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let doc = photocraft_io::import(path, &bytes).expect("decode the image").document;
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s.add_document(doc, None);
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}
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None => {
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s.execute("file.new", json!({"width": 3859, "height": 2594, "background": "white"})).expect("new");
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s.execute("filter.noise.addNoise", json!({"amount": 50})).expect("noise");
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}
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}
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s.execute("layer.duplicate", json!({})).expect("a second layer");
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let cases: [(&str, Value); 3] = [
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("upright 512x442", json!({"x": 40, "y": 40, "width": 512, "height": 442})),
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("turned 3° 512x442", json!({"x": 40, "y": 40, "width": 512, "height": 442, "angle": 3})),
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("turned 3° 3000x2000", json!({"x": 400, "y": 300, "width": 3000, "height": 2000, "angle": 3})),
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];
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for (label, p) in cases {
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let mut best = Duration::MAX;
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for _ in 0..reps {
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let t = Instant::now();
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s.execute("image.crop", p.clone()).expect("crop");
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best = best.min(t.elapsed());
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s.execute("edit.undo", json!({})).expect("undo");
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}
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println!("{label:24} best of {reps}: {best:.2?}");
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}
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}
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