gallery/vendor/i-slint-backend-android-activity-1.18.1
Greg Pomerantz df4e1bd6f8 Baseline-60 control build: stock crates.io Slint, no vendored fixes
shim: 512 for aarch64-linux-android
Using package `gallery` in `/mnt/Backup/prog/android/gallery/Cargo.toml`
Compiling apk resources...
Linking apk resources...
Optimizing apk resources...
Compiling Java sources...
Creating classes.jar from compiled Java sources...
 'classes.dex'...
 'lib/arm64-v8a/libgallery.so'...
Verifying alignment of /mnt/Backup/prog/android/gallery/target/release/apk/gallery.apk (4)...
      49 AndroidManifest.xml (OK - compressed)
    1072 resources.arsc (OK)
    1153 classes.dex (OK - compressed)
    1635 lib/arm64-v8a/libgallery.so (OK - compressed)
Verification succesful
Signing `/mnt/Backup/prog/android/gallery/target/release/apk/gallery.apk` with keystore `/home/gmp/.android/debug.keystore`
APK: target/release/apk/gallery.apk (512) strips the [patch.crates-io] section so
the whole Slint stack (renderer, backend, core, wgpu-hal) resolves to
the stock 1.18.1 sources: no render-ahead, no vsync-locked render, no
app-owned frame driver, no wake-fd trampoline, no vkshim, no perf
instrumentation. All vendor-internal references in the app are now
#[cfg(feature = "perf")]-gated so the stock build is genuinely stock.

Purpose: the CONTROL experiment for the 120Hz zero-jank campaign.
If the grid still janks on the phone at 60 Hz with this build, the
jank lives in the app / GPU pipeline (drain tick, texture uploads,
model updates), not in the vendored fix stack.

60 Hz lock: NOT via JNI — the public API turned out to be
unavailable (Display.setRefreshRate is hidden-API-blocked;
WindowManagerImpl lacks setPreferredDisplayRefreshRate on both
tested devices). Instead the display is locked with the device's
own user setting:
(restored after the test). The baseline60 feature is a pure
marker; the build is otherwise identical to the app code.

Verified on emulator (x86_64, 60 Hz, SwiftShader): launch, grid
render, thumbnail fill, scroll + prefetch all work.
2026-10-30 22:05:28 -04:00
..
java Jank-hunt perf feature: FR/STG/DECODE instrumentation, off by default 2026-10-29 08:11:51 -04:00
LICENSES Jank-hunt perf feature: FR/STG/DECODE instrumentation, off by default 2026-10-29 08:11:51 -04:00
.cargo_vcs_info.json Jank-hunt perf feature: FR/STG/DECODE instrumentation, off by default 2026-10-29 08:11:51 -04:00
.cargo-ok Jank-hunt perf feature: FR/STG/DECODE instrumentation, off by default 2026-10-29 08:11:51 -04:00
androidwindowadapter.rs 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 Jank-hunt perf feature: FR/STG/DECODE instrumentation, off by default 2026-10-29 08:11:51 -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 120Hz: fix the ALooper wake-fd race (root cause of slot drops) + phase-slip-robust referee 2026-10-30 16:08:48 -04:00
Cargo.toml.orig Jank-hunt perf feature: FR/STG/DECODE instrumentation, off by default 2026-10-29 08:11:51 -04:00
javahelper.rs Jank-hunt perf feature: FR/STG/DECODE instrumentation, off by default 2026-10-29 08:11:51 -04:00
lib.rs Baseline-60 control build: stock crates.io Slint, no vendored fixes 2026-10-30 22:05:28 -04:00
README.md Jank-hunt perf feature: FR/STG/DECODE instrumentation, off by default 2026-10-29 08:11:51 -04:00
stg.rs 120Hz: app-owned frame driver (spin) — the OS no longer paces renders 2026-10-30 18:21:50 -04:00
vsync.rs 120Hz: fix the ALooper wake-fd race (root cause of slot drops) + phase-slip-robust referee 2026-10-30 16:08:48 -04:00

NOTE: This library is an internal crate of the Slint project.

WARNING: This crate does not follow the semver convention for versioning and can only be used with version = "=x.y.z" in Cargo.toml.

Slint Android Activity Backend

This crate implements the Android backend/platform for Slint.

It uses the android-activity crate to initialize the app and provide events handling.

It can be used by using functions from the slint::android module