dtourolleandClaude Opus 5
7235972ca4
`docs/display-and-extension.md` §2 fixes a decision rule in advance: if the 99th percentile of a frame sits inside 16 ms, tiled computation is rewritten as a scheduling concern for export rather than built on the interactive path. Nothing in the tree could answer that, so the rule had nothing to act on. This is the instrument. It renders a 60 MP synthetic source through the real `render_detailed` at three viewport sizes and four chain lengths, fit and zoomed to 1:1, and reports nearest-rank percentiles rather than means — a slider drag is judged by its worst frame. Three things it does that a simpler timer would not: - It separates the fused pass from the neighbourhood stage. "Every operation active" mixes one dispatch together with a chain of convolutions, and §2's question is about the first of those. `point` is every operation that contributes a fragment to the fused shader; `all` adds the four with kernels, and M3 times those alone by moving only a detail parameter so `render_detailed`'s colour reuse skips the fused dispatch. The reuse is reported rather than assumed — the `colour` column counts fused dispatches and must be zero for an M3 row to mean what it says. - It times the CPU half separately. Composition runs per frame in `DevelopSession::render`, so it is inside the budget whether or not anyone has looked at it, and if shader assembly were the expensive half then no tile scheduler could help. - It builds the "every operation" chain from `EditGraph::capabilities` rather than from a list, so declaring a new node does not quietly turn that row into a shorter chain wearing a longer chain's label. Co-Authored-By: Claude Opus 5 <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.