gmp/gallery
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity
34 Commits 1 Branch 0 Tags 13 MiB
Rust 76.2%
Python 14.1%
Kotlin 5.1%
Shell 4.6%
b97b6515d5
Go to file
Greg Pomerantz b97b6515d5 120Hz: Choreographer chain self-sustains on (animating||dirty); EW gates the wake; MISS v2 forensics; ctxsw discriminator + present CPU split 
vsync.rs:
- set_state(animating, dirty) replaces set_animating. The Choreographer
  callback chain re-posts while animating||dirty: gating on animating
  alone let the chain die during flings (pointer inactivity >200ms) —
  with EW disabled the loop then froze (measured: 30 frames in 4s,
  then silence). The dirty mirror is pushed every main-loop iteration
  (<=8ms stale); the 6ms poll backstop bounds chain-break damage.
- EW_ON now gates the WAKE itself: the early waker raced the
  Choreographer (fires at edge+0.52ms measured) and its independent
  phase caused the -4..+4ms render-phase wander. Choreographer is the
  single wake source.
- MISS lines carry forensics: sw/sn (wake slot vs last rendered slot),
  eage (ms since last observed vsync edge), lastage (ms since last
  render) — distinguishes chain-stall / loop-stuck / guard-reject /
  no-wake-iteration without a second run.
stg.rs:
- ctxsw_sample() reads /proc/self/task/<pid>/stat for voluntary/involuntary
  context switches, CONDITIONAL on iteration >5ms (per-iteration procfs
  reads were a measured confounder: 20-50us each, pushed phase across
  the slot boundary, 10x worse drops). vsw/nvol on the IT line.
- precpu: CPU time inside Queue::present on the PRES line (pre_us >>
  precpu = blocked on binder/fence/SF; pre_us ~= precpu = CPU-bound).
wgpu_30_surface.rs: EW_ON moved here (vkprobe) so vsync.rs can gate the
wake without a new crate dependency.
lib.rs: poll backstop uses the dirty state; 6ms cap during active phases.
2026-10-30 14:51:06 -04:00
docs/BUGS 120Hz: jank_eval referee + slot-based wake guard + MISS ledger 2026-10-30 13:29:50 -04:00
scripts Fix 120Hz scroll jank end-to-end: render-ahead present + full-cache eviction off the UI thread 2026-10-30 02:49:23 -04:00
shim Fix 120Hz scroll jank end-to-end: render-ahead present + full-cache eviction off the UI thread 2026-10-30 02:49:23 -04:00
src 120Hz: jank_eval referee + slot-based wake guard + MISS ledger 2026-10-30 13:29:50 -04:00
tools perf tooling: jank_capture.py (end-to-end capture+report) + stress-test fixes in jank_eval 2026-10-30 14:45:52 -04:00
vendor 120Hz: Choreographer chain self-sustains on (animating||dirty); EW gates the wake; MISS v2 forensics; ctxsw discriminator + present CPU split 2026-10-30 14:51:06 -04:00
.gitignore Fix 120Hz scroll jank end-to-end: render-ahead present + full-cache eviction off the UI thread 2026-10-30 02:49:23 -04:00
build.rs M0: Slint gallery scaffold + development hand-off 2026-10-27 12:22:59 -04:00
Cargo.lock Fix 120Hz scroll jank end-to-end: render-ahead present + full-cache eviction off the UI thread 2026-10-30 02:49:23 -04:00
Cargo.toml Fix thumbnail pop-in: hold-queue for paint-cap overflow + append-only scan streaming + window-liveness watchdog 2026-10-30 09:04:01 -04:00
HANDOFF.md handoff: section 8.10 — the zero-jank perf tooling (jank_eval + jank_capture) 2026-10-30 14:46:37 -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).