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0a32b3593d
Open .kra and .krz with paint layers (8/16-bit RGBA and gray, any offset), nested and pass-through groups, names, visibility, opacity, locks, blend modes and transparency masks, plus the image's ICC profile and resolution. Vector, filter, fill, file and clone layers and the other mask kinds are left out with a warning; float, CMYK and Lab documents open as Krita's merged image (preview). Import only: Save suggests .ora. Checked against 35 Krita 5.2.9-authored files. Co-authored-by: Scott Campbell <251750033+scottcampbelldata@users.noreply.github.com> Co-authored-by: Brandon Thomas <echelon@gmail.com> Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
54 lines
3.3 KiB
Rust
54 lines
3.3 KiB
Rust
//! Krita documents opened through the session: read-only source, 16-bit layers, editable
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//! layers with history, and saving as OpenRaster or native. The files come from
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//! `tools/krita-oracles/generate.py` in https://github.com/storytold/photocraft-corpus. Run with
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//! `KRITA_TEST_DIR=<dir> cargo test -p photocraft-engine --test kra -- --ignored --nocapture`.
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use photocraft_engine::Session;
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use serde_json::json;
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fn open(path: &std::path::Path) -> Session {
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let mut session = Session::new();
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let name = path.to_string_lossy().into_owned();
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photocraft_engine::file_cmds::open_bytes_as(&mut session, &name, &std::fs::read(path).unwrap(), None, Some(name.clone())).unwrap();
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session
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}
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#[test]
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#[ignore = "requires KRITA_TEST_DIR with Krita-authored .kra files"]
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fn krita_documents_open_read_only_and_stay_editable() {
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let dir = std::path::PathBuf::from(std::env::var("KRITA_TEST_DIR").expect("set KRITA_TEST_DIR"));
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let path = dir.join("depth-rgba-u16.kra");
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let mut session = open(&path);
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let active = session.active().unwrap();
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assert!(active.source_read_only && active.path.is_none());
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assert_eq!(active.doc.depth, photocraft_color::SampleType::U16);
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assert!(session.execute("file.save", json!({})).is_err());
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// Krita's merged image is the composite (the corpus files carry no ICC profile, so both
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// sides are sRGB); crates/io/tests/krita_corpus.rs compares every file.
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let ours = photocraft_compose::flatten(&session.active().unwrap().doc);
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let zip_bytes = std::fs::read(&path).unwrap();
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let zip = photocraft_format::zip::ZipReader::new(&zip_bytes).unwrap();
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let merged = photocraft_io::import("m.png", &zip.read_by_name("mergedimage.png", 1 << 28).unwrap()).unwrap().document;
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let theirs = photocraft_compose::flatten(&merged);
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let worst = ours.px.iter().zip(&theirs.px).map(|(a, b)| (0..4).map(|c| (a[c] * a[3] - b[c] * b[3]).abs()).fold(0.0f32, f32::max)).fold(0.0, f32::max);
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assert!(worst <= 3.0 / 255.0, "{}", worst * 255.0);
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// Imported Krita layers take the ordinary commands and history.
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let mut session = open(&dir.join("layers-opacity-visibility.kra"));
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let before = session.active().unwrap().doc.clone();
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let id = before.layers.last().unwrap().id;
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session.execute("layer.setProps", json!({"layer":id.0,"name":"Edited","opacity":0.25,"blend":"Screen"})).unwrap();
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assert_eq!(session.active().unwrap().doc.layer(id).unwrap().blend, photocraft_color::BlendMode::Screen);
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session.execute("layer.select", json!({"layer":id.0})).unwrap();
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session.execute("paint.stroke", json!({"points":[[2,2],[30,30]],"size":6,"hardness":1.0,"color":"#00ff00"})).unwrap();
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assert!(session.undo() && session.undo());
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assert_eq!(session.active().unwrap().doc.layers, before.layers);
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// ...and save as OpenRaster or native, never back to .kra.
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let doc = &session.active().unwrap().doc;
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assert!(photocraft_io::export(doc, "x.kra", &Default::default()).is_err());
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let ora = photocraft_io::export(doc, "x.ora", &Default::default()).unwrap();
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assert_eq!(photocraft_io::import("x.ora", &ora.bytes).unwrap().document.layers.len(), doc.layers.len());
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let native = photocraft_io::export(doc, "x.pcraft", &Default::default()).unwrap();
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assert_eq!(photocraft_io::import("x.pcraft", &native.bytes).unwrap().document.layers, doc.layers);
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}
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