gmp/gallery
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity
20 Commits 1 Branch 0 Tags 13 MiB
Rust 76.2%
Python 14.1%
Kotlin 5.1%
Shell 4.6%
d5bbb41bbd
Go to file
Greg Pomerantz d5bbb41bbd Jank-hunt perf feature: FR/STG/DECODE instrumentation, off by default 
Residual scroll jank at 120 Hz (suspected Slint event-loop bug) needs
per-frame + per-stage timing the logcat ring buffer can't hold. New
cargo feature `perf` (default OFF — all sites are cfg-gated, zero
overhead when off):

- FR: per-frame app-side render cost + frame gap, from the rendering
  notifier (BeforeRendering/AfterRendering).
- STG: event-loop stage costs (wake/timers/events/poll/lastrender) from
  timestamps instrumented into the pinned vendor copy of
  i-slint-backend-android-activity (stg.rs; Cargo.toml now depends on
  it directly + optional under `perf`).
- DECODE: per-thumbnail-job cost on the workers.
- All lines mirrored to /sdcard/Download/.gallery_perf.log (logcat
  rotates too fast at ~120 lines/s).

Format + reading guide: docs/BUGS/scroll-jank-120hz.md.
2026-10-29 08:11:51 -04:00
docs/BUGS Jank-hunt perf feature: FR/STG/DECODE instrumentation, off by default 2026-10-29 08:11:51 -04:00
scripts GPU-resident thumbnails: worker uploads to Slint's wgpu device (gputex) 2026-10-28 10:57:15 -04:00
src Jank-hunt perf feature: FR/STG/DECODE instrumentation, off by default 2026-10-29 08:11:51 -04:00
vendor Jank-hunt perf feature: FR/STG/DECODE instrumentation, off by default 2026-10-29 08:11:51 -04:00
.gitignore M0: Slint gallery scaffold + development hand-off 2026-10-27 12:22:59 -04:00
build.rs M0: Slint gallery scaffold + development hand-off 2026-10-27 12:22:59 -04:00
Cargo.lock Jank-hunt perf feature: FR/STG/DECODE instrumentation, off by default 2026-10-29 08:11:51 -04:00
Cargo.toml Jank-hunt perf feature: FR/STG/DECODE instrumentation, off by default 2026-10-29 08:11:51 -04:00
HANDOFF.md Fix activity-recreation crash: render-thread GPU uploads + per-world lifecycle 2026-10-28 20:54:04 -04:00
LICENSE Initial commit 2026-10-27 12:13:22 -04:00
README.md M1: metadata scan + sqlite DB + placeholder list 2026-10-27 13:28:33 -04:00

README.md

gallery

A high-performance image gallery for Android (primary), Linux and macOS — Rust + Slint 1.18.

Status: M1 (metadata scan + DB) done. See HANDOFF.md — the development hand-off with the full plan: architecture, thumbnail pipeline, milestones M1–M7, Slint gotchas, permission flow, and performance targets. Next: M2 (thumbnail engine).

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 Slint, used under the Slint royalty-free license for proprietary apps (see HANDOFF.md §10.4).