dtourolle 85dafd78b7 Work out where things go, now that there are many of them
Local adjustments took the develop column from four panels to six, and the
operation set is meant to keep growing — FR-DEV-3 still lists texture,
clarity, sharpening and noise reduction as v1. But the count is the lesser
problem.

The real one is that local adjustments introduced a *mode* without
introducing a way to see it. Selecting a mask silently re-points thirty
sliders at that layer, and the histogram those sliders are judged against
goes on reporting the whole frame. I built that, and it is the fault that
loses work rather than merely slowing someone down.

Decided: local becomes a mode, in the sense `crop-mode` already is. The app
has the pattern, the user knows it, and it removes the ambiguity by
construction instead of describing it in a caption. It also inherits the
Escape/back stack that already leaves the innermost state first.

Recommended: diverge on **width**, not on platform. A tablet in landscape
wants what a desktop wants and a narrow desktop window wants what a phone
wants, so `cfg(target_os)` would give one physical situation two answers.
`apply_layout_class` already classifies on width and already remembers a
per-class override; this is a second consumer of a decision the app makes
anyway. What must not diverge is the controls — both layouts consume the
same generated capability model, so a new operation still needs no UI edit.

Left open, because it is taste: whether the wide layout eventually gains
tool tabs. Recorded rather than left to be rediscovered is the *legitimate*
route to them — a descriptor declaring an operation's nature, the same shape
as `Affects`, with the frontend free to render it as a tab or ignore it.
Deferred because ten operations do not need eight tabs and the field is easy
to add later and awkward to remove.

Surveys what Lightroom, Capture One, darktable and the phone editors
actually do, including the thing none of them do: make a mask a panel that
rewires a different panel.
2026-08-22 09:52:08 +02:00

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

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.

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