dtourolleandClaude Opus 5
8b251b84a0
TD-4 asked for the measurement as well as the change, and this is it: 25.05 ms to 4.17 ms at 3840 x 2160, six times faster, with clarity no longer dominating the neighbourhood stage it used to be 97% of. Measured before and after on the same machine and the same adapter minutes apart, baseline at the branch's merge-base, so the only variable is the change. That adapter is not the RTX 3050 the rest of this document was measured on, so the new table says to read it on its own rather than against the ones above — the before/after is comparable, the absolute figures are not, and quietly replacing the existing tables would have changed the instrument. Also recorded: the declared halo is now quantised to multiples of the output scale, because the 2-sigma truncation rounds on the reduced grid. 29 px becomes 28 at 1920x1200 and 38 becomes 40 at 2560x1600. It is inside what the cross-form test holds — 0.03 stops of peak, 2% of reach — but it is a change in reach and not only in cost, and a tile scheduler would be handed it. Better written down now than found later as a seam. 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.