dtourolleandClaude Opus 5
24bf5be574
The APK's only dex was Slint's. `assemble-apk.sh` found `classes.dex` under the android-activity backend's build directory and copied it in, and there was no `javac` step and no `d8` of anything of ours — package.sh's header said so outright, on the reasoning that the app has no Java because android-activity calls `android_main` directly. That reasoning holds for everything the app *calls* and fails for everything Android *constructs*. A `ContentProvider` is instantiated by the system from its manifest entry; nothing in the process ever reaches its constructor, so there is no JNI route to writing one in Rust. The launch `Intent` is the same shape of problem from the other end: it arrives through `Activity.getIntent()`, and the activity android-activity hands out is a stock `NativeActivity` rather than a subclass with room for code. FR-PLAT-AND-6 needs both, and FR-PLAT-AND-4 needs a foreground `Service`, which is a third. So: everything under `apps/darkroom-android/android/java/` goes through javac against `android.jar`, and d8 merges the classes with Slint's finished dex into one `classes.dex`. Merging rather than emitting a second dex keeps the staging and zip steps as they are — multidex is native at API 28, but two files to keep in step buys nothing at this size. The step is skipped when the tree holds no Java, which is the state this commit leaves it in. Nothing about the APK changes until a `.java` file appears. `-source 8 -target 8 -bootclasspath android.jar` is not caution about language features. It is the last combination in which javac allows the boot class path to be replaced: from `-target 9` the flag is rejected, the platform classes come from the JDK instead of from android.jar, and the build stays green while the device raises `NoClassDefFoundError` for a class Android never shipped. 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: 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.