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Greg Pomerantz 312d87f15d gtauri: pinch zoom about pointer midpoint + live filesystem watching 
Pinch: the image now follows the hand (midpoint drift) and zooms
ABOUT the midpoint — the image point under the fingers stays put
while the scale changes. Per-frame delta math, clamped as before
(fit min, image-edge pan limits).

Live watching: new photos appear in the grid within ~2s of being
written. inotify does not work on Android's FUSE-backed external
storage, so the watcher polls a tree signature (dir mtimes only —
a few dozen stats/s) every second; on change (or a 30s safety-net
full pass) it debounces 600ms for the write burst, then runs the
incremental rescan (walk + DB diff + emit) off the main thread.

Supporting changes:
- Staged corruption: a decode failure no longer marks an id broken
  immediately — 3 consecutive failures are required, and a success
  clears the count. A photo still being written fails once or twice
  and then decodes; genuine garbage gives up and stays gray.
- Grid rebuild preserves the viewport across a live rescan (pins to
  the cell that was on top), so a new photo landing at the top does
  not jump the scroll position.
2026-11-01 18:02:09 -05:00
docs/BUGS 120Hz: jank_eval referee + slot-based wake guard + MISS ledger 2026-10-30 13:29:50 -04:00
harnesses gtauri: pinch zoom about pointer midpoint + live filesystem watching 2026-11-01 18:02:09 -05:00
scripts Port the gallery from Slint to egui (egui 0.31 / egui_glow / winit 0.30 / glow 0.16) 2026-10-31 13:50:46 -04:00
shim/out Port the gallery from Slint to egui (egui 0.31 / egui_glow / winit 0.30 / glow 0.16) 2026-10-31 13:50:46 -04:00
src Port the gallery from Slint to egui (egui 0.31 / egui_glow / winit 0.30 / glow 0.16) 2026-10-31 13:50:46 -04:00
tools Port the gallery from Slint to egui (egui 0.31 / egui_glow / winit 0.30 / glow 0.16) 2026-10-31 13:50:46 -04:00
.gitignore Port the gallery from Slint to egui (egui 0.31 / egui_glow / winit 0.30 / glow 0.16) 2026-10-31 13:50:46 -04:00
Cargo.lock Port the gallery from Slint to egui (egui 0.31 / egui_glow / winit 0.30 / glow 0.16) 2026-10-31 13:50:46 -04:00
Cargo.toml Port the gallery from Slint to egui (egui 0.31 / egui_glow / winit 0.30 / glow 0.16) 2026-10-31 13:50:46 -04:00
HANDOFF.md docs: HANDOFF §8.12 (egui port + tttest harness), README reflects the egui stack 2026-10-31 13:54:56 -04:00
LICENSE Initial commit 2026-10-27 12:13:22 -04:00
README.md docs: HANDOFF §8.12 (egui port + tttest harness), README reflects the egui stack 2026-10-31 13:54:56 -04:00

README.md

gallery

A high-performance image gallery for Android (primary), Linux and macOS — Rust + egui 0.31 (egui_glow / winit 0.30 / glow 0.16). Ported from Slint 1.18 after the zero-jank campaign showed Slint-on-Mali janky at its base level while egui measured 3–7× cleaner (HANDOFF.md §8.11–8.12). The Slint tree is preserved in git history and docs/BUGS/.

Status: M0–M4 ported to egui, zero-jank tuning in progress. See HANDOFF.md — the development hand-off: architecture, thumbnail pipeline, milestones M1–M7, the Slint jank campaign, the egui port, and the sltest/egtest/tttest harnesses (A/B/C: Slint/egui/WebView).

Build

./scripts/build.sh debug     # debug x86_64 APK + install on emulator
./scripts/build.sh           # release x86_64 (emulator)
./scripts/build.sh aarch64   # release aarch64 (device)
cargo run                    # desktop (Linux needs libfontconfig1 + pkg-config)

Requires: Rust (rustup), cargo-apk2, Android SDK + NDK 27 (see HANDOFF.md §3 for exact paths/env).

License

GPL-3.0 (see LICENSE). Built on egui (MIT/Apache-2.0).