af5a13b3f70b58c8233733bbcc913ed72b5362de
"Show photos" could only ever mean one person. The two questions a photographer actually asks are "every picture of Anna or Bob" and "the pictures they are both in", and the second is not reachable by any sequence of single-person filters — no amount of switching between one person and another finds the frame they share. So the filter holds a *set* of people and a mode. `RatingFilter` was already the right home, as its own doc says: every query path threads it, so the count in the header and the cells in the grid are narrowed by the same thing, and this composes with stars, flags and the date range for free. The union is `EXISTS ... person_id IN (...)`. The intersection counts **distinct** people per image and compares against the size of the selection — one subquery rather than one per person, and it does not grow the statement with the selection. `DISTINCT` is what makes it correct: three faces of Anna in one frame must not satisfy a filter asking for Anna and Bob, and there is a test that says so. Any rather than All is the default. With one person the modes are the same filter, and adding a second to a union can only ever show more — so a user who has not noticed the toggle never ends up staring at an empty grid wondering what they broke. The toggle only appears at two people, because a control that demonstrably does nothing is a control that teaches the user to ignore it. Building the set needs no picker of its own: the Identity screen gains "And also…" beside "Show photos", offered only once the grid is already narrowed to somebody. Each person is a chip on the filter bar and each chip removes just that person, so a selection of three can be taken apart one at a time rather than only cleared wholesale. `RatingFilter` stops being `Copy`, since it now holds a `Vec`. Every query path already took it by reference; the casualties were two struct updates and one `Cell` that becomes a `RefCell`. 484 dr-ui tests pass, including the union, the intersection, that one person reads the same in both modes, and the repeated-faces trap. 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.
Releases
20
DarkRoom 0.24.0
Latest
Languages
Rust
86.1%
Slint
10.3%
Python
1.1%
Shell
1%
WGSL
0.9%
Other
0.6%