dtourolle
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`Attribute::ALL` has claimed since it was written to be roughly the order a photographer works in, and474dcf0moved `Compose` to the front on exactly that argument. Both ends went on contradicting it. `Optics` sat fifth, so the column offered the lens corrections after the tones they change. Removing a vignette brightens the frame; an exposure judged before that correction has to be judged again after it, which is the definition of the wrong order. `Detail` sat fourth, so sharpening and noise reduction — the only work here that depends on everything above it, and the only work that cannot be judged at fit view at all — were offered before the lens had even been put right. So `Optics, Compose, Tone, Colour, Effect, Detail`. `Optics` leads even `Compose` because it is not a decision about the photograph at all: it is undoing what the equipment did, a property of the capture rather than a choice. `Effect` after `Colour` is a look laid over a settled picture, and is the one slot that is genuinely arguable — a spectral film simulation declares `renders` and replaces the base curve, which is a case for treating it as foundational instead, ande235e99filed film under `Effect` only days ago. The doc comment records that tension rather than pretending to settle it; an array of six cannot say "last, except when it is first". `decl::Attr::ALL` moves with it. It is the second spelling of one vocabulary, compiled by `build.rs` where `descriptor` is not visible, and the agreement test in `declared/mod.rs` zips the two positionally — that test is what caught the last reorder, and it would have caught this one. Nothing persists a position in this list, which is what makes the reorder safe rather than merely tidy. `Scope` packs one bit per attribute indexed by `Attribute::ALL`, but `bits` is private, has no accessor and no `serde`; what reaches a settings file is `develop.copy_attributes`, a list of names read back through `Attribute::from_name`. A photographer's copy scope survives untouched — only the order the names happen to be written in changes.6a97fdfis why this is worth a commit now rather than a shrug: the contradiction was harmless while the list only fed a row of chips nobody reads in order, and stopped being harmless when the same list began driving a column read top to bottom. The matrix follows the two files' shifted line numbers.
DarkRoom
A cross-platform, non-destructive RAW photo editor for Linux and Android.
Status: 0.9.0, and no longer a spike. A library opens, culls, develops and exports on both platforms, across eight tagged releases. What is not built is written down rather than merely absent — see docs/outstanding.md for the requirements that have no implementation and why, and docs/technical-debt.md for the compromises that were chosen.
Documentation
| Document | Contents |
|---|---|
| CONTRIBUTING.md | How to land a first change without reading the rest |
| requirements.md | What the software must do — 179 numbered requirements |
| architecture.md | How it is built — crates, GPU pipeline, data model, sync |
| technical-debt.md | Compromises taken deliberately, each with the condition that retires it |
| outstanding.md | What is not built, and whether that is a decision or a gap |
| code-health.md | What a contribution costs, per seam, measured |
| traceability.md | Generated: which requirement is claimed by which file |
| faces.md | Face detection and identity — the models, the licence problem, and what S14 measured |
Building
Desktop:
cargo run -p darkroom-desktop
Android (containerised toolchain, see docker/android):
./docker/android/build.sh cargo ndk -t arm64-v8a build --release
Git LFS is required for the model weights, and the toolchain pins itself. CONTRIBUTING.md has the details and the four commands CI will run against what you send.
Current state
Working. A catalog over a local folder, a Nextcloud account, or a folder a
sync client keeps in virtual-files mode — where a placeholder is treated as the
photograph rather than as a one-byte file. A virtualised library grid with a
capture-time timeline, ratings, labels, keywords, collections and a trash that
survives a crash mid-operation. Card ingest. Face detection and identity, with
the index syncing between devices. A develop pipeline of fifteen declared
operations fused into a single compute dispatch, plus the neighbourhood
operations that cannot be — clarity, texture, capture sharpening, noise
reduction, lens correction, spectral film simulation. Crop, straighten, spot
removal, gradient and subject-segmentation masks, named presets, and a
generated panel that no operation in ui/ is allowed to name. Export to JPEG,
PNG and 8- or 16-bit TIFF with resize and output sharpening.
The zero-copy display path works on desktop. The compute pass writes a texture that Slint composites directly, which is what ARCH §6.1 requires; the readback it forbids costs 96% of frame time at 4K, and
cargo run -p dr-gpu --example bench --features readback
still reproduces that measurement. The one exception is the Android develop view, which reads the frame back through the CPU because zero-copy there needs wgpu's Vulkan swapchain, and that tears a portrait window on a tablet whose panel is mounted landscape. It is debt, not a revision of the rule: the reasoning, the on-device measurements that forced it, and the three separate things any one of which would remove it are in technical-debt.md TD-1.
Not built. Plugins, compare and survey culling, focus peaking, burst grouping, AI denoise, tiled and progressive rendering, and most of the Android platform integration beyond running. The performance targets in §4.1 are unverified rather than unmet — the per-commit benchmark suite §8 requires does not exist, so nothing fails a build on a regression. docs/outstanding.md is the list, with the reasoning.
Licence
GPL-3.0-or-later.