dtourolleandClaude Opus 5
e6ad906bc1
A photographer cropping for a print, a phone wallpaper or a 16:9 frame is not choosing four edges — they are choosing one edge and a known shape. Free-dragging every corner made them do that arithmetic by eye on every drag, and get it slightly wrong. The panel now offers Free, Original, 1:1, 3:2, 4:3 and 16:9, with a Portrait switch for the ones that have two orientations. Original follows the frame rather than naming a number, so it stays right on the next photograph from another body and after a quarter turn. **The ratio is of output pixels, and the rect is not.** `CropRect` is stored in fractions of a frame that is not itself square, so holding a shape needs the frame's size — `ratio * height / width` of the frame. Skipping that gives a "1:1" crop that is square only on a square photograph, which is the one case nobody would test on, so the conversion lives in `CropRect::with_aspect` where it is explained and pinned by a test that asserts the fractions are *not* equal. Two decisions worth recording: The reshaped rect **grows** onto the ratio rather than shrinking onto it, then scales down only as far as the frame's edge demands. Fitting inside instead makes a one-axis drag do nothing at all — the other axis clamps the first straight back, and the handle simply refuses to move. The overlay now reports **which corner the drag is holding**, because reshaping onto a ratio has to know which corner is nailed down and only the handle that took the press knows that. A move reports no corner and keeps its shape: reshaping about a centre would pull an over-moved rect smaller instead of sliding it along the edge. The lock lives with the window rather than the session. A `DevelopSession` is per image, and cropping a set of frames to one shape is exactly when the lock earns its place. It is not an edit and reaches no sidecar — what is saved is the rectangle it produced. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
DarkRoom
A cross-platform, non-destructive RAW photo editor for Linux and Android.
Status: early. v0.1 is a remote library viewer — see docs/milestone-v0.1.md.
Documentation
| Document | Contents |
|---|---|
| requirements.md | What the software must do — 122 numbered requirements |
| architecture.md | How it is built — crates, GPU pipeline, data model, sync |
| milestone-v0.1.md | The first buildable milestone |
| faces.md | Face detection and identity — the models, the licence problem, and what S14 measures |
Building
Desktop:
cargo run -p darkroom-desktop
Android (containerised toolchain, see docker/android):
./docker/android/build.sh cargo ndk -t arm64-v8a build --release
Current state
Working: workspace, GPU context and compute pass, adaptive Slint shell, Android cross-compilation of the core crates.
Not yet working: the zero-copy display path. The build currently uploads frames through the CPU, which is exactly what ARCH §6.1 forbids — measured at 96% of frame time at 4K. Replacing it is spike S1, the project's highest priority.
cargo run -p dr-gpu --example bench --features readback
reproduces that measurement.
Licence
GPL-3.0-or-later.