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Greg Pomerantz 347b6825cc gtauri viewer: swap element roles on commit — no resize on takeover 
A second drag while the first was settling showed the new image briefly
at the wrong size: the commit copied the preview's src into vimg (an
async paint — one frame of old content in the new box) and openViewer
then reset vScale=1, so the promoted image rendered at thumb scale
until full-res landed.

Commit now swaps the ELEMENTS' roles instead of copying pixels: the
preview element already shows the incoming image at its own size and
scale, so finishCommit promotes it in place (geometry adopted from
the loaded preview, moved to 0, brought to front, old primary hidden
immediately). No src copy, no async paint, no re-layout — the settled
frame is the drag frame. P/S role variables replace the fixed
vimg/vimg2 references throughout the viewer.

openViewer(keepVisible) no longer resets the view state (the commit
already set it), and a full-res landing while a slide owns
base/vScale is deferred to the safety timer instead of jumping the
animation.

Verified on the emulator: mid second-drag the promoted image holds
its exact fit size (1081 px) in every captured frame (the bug showed
~288), both images visible on the strip, and the chained landing is
pixel-identical to two deliberate swipes.
2026-11-03 14:32:24 -05:00
docs/BUGS 120Hz: jank_eval referee + slot-based wake guard + MISS ledger 2026-10-30 13:29:50 -04:00
harnesses gtauri viewer: swap element roles on commit — no resize on takeover 2026-11-03 14:32:24 -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 chore: gitignore target/, drop stray capture log 2026-11-01 20:24:17 -05:00
.gitignore chore: gitignore target/, drop stray capture log 2026-11-01 20:24:17 -05:00
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 HANDOFF: current watch architecture (no Android mtime-diff, RESCANNING gate) 2026-11-02 12:38:17 -05:00
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).