dtourolleandClaude Opus 5
b2250cc460
The GPU question needed a number nobody had: how a regroup divides on the hardware whose CPU is weakest. dr-face carries no weights and touches no display, and dr-catalog's example needs only a catalog file, so both run under adb shell against a copy of a real library. On the same 18,143 faces — desktop against the tablet — scan 0.96s / 2.61s, agglomerate 1.69s / 2.16s, score 0.26s / 0.40s. The scan is half the pass on the tablet and under a third on the desktop, because twenty cores of AVX2 pull ahead of NEON much further than the merge engine's single-threaded hashing does. So a GPU GEMM is worth roughly 2× a regroup on the tablet and 1.5× here, and it is the tablet that should decide whether it is built. The two architectures agree exactly: the same 1,531,969 evidence pairs, the same 2,518 groups holding the same 16,246 faces, the same reliability table. That is a better check on the NEON kernel than the unit test can be. Two instruments, both read-only: the example now prints its phases, and dr-face gains scan_bench, which needs no library at all and so can answer "how fast is this machine" on a device with nothing on it. 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.