Greg Pomerantz
2f4768f354
Three root causes, all fixed and verified on the Pixel 9 Pro: 1. Present phase (backend + renderer): VSYNC_LOCKED_RENDER defers the render to the vsync wake; RENDER_AHEAD presents the previous frame at the start of render() (phase = wake + ~1.1 ms) and holds the new frame one slot. Crash fix: a held wgpu frame must be PRESENTED, never merely dropped, before the next acquire (AlreadyAcquired panic at launch otherwise); discard_pending_frame presents too. 2. Full-res prefetch churn (src/lib.rs): the 8-slot full cache cycled through a ~20-cell viewport forever (137 decodes/20 s) and each eviction free()'d a 50 MB Vec on the UI thread (20-52 ms CPU spikes, ~7/s = the residual SLOWEV NonMain jank). Fix: 60 s tombstone cooldown on evicted paths (idle prefetch skips, urgent tap bypasses) + off-thread reaper for the freed blobs (insert: 21 ms -> 4 us). 3. (earlier) Skia final flush + Mailbox present mode (vendor, M3). Instrumentation (all behind --features perf): OTHR/INVK/INVK_TAG/FLCK lines for cross-thread closure timing and push-site tagging. Warm measured swipe, 8580-file grid: cadence median 8.33 ms (exact 120 Hz), p99 15.5 ms, 5/552 gaps >16.7 ms (0.9%, max 28.3 ms, zero >33 ms); PRES phase median ~994 us, zero late frames. Docs updated (docs/BUGS/scroll-jank-120hz.md, full scorecard + line reference). Also: vendored i-slint-core + wgpu-hal (vkshim interposition patch), vkshim profiling tooling, backend made a non-optional dep, debuggable flag for simpleperf (REMOVE before shipping).
119 lines
3.0 KiB
TOML
119 lines
3.0 KiB
TOML
# THIS FILE IS AUTOMATICALLY GENERATED BY CARGO
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#
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# When uploading crates to the registry Cargo will automatically
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# "normalize" Cargo.toml files for maximal compatibility
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# with all versions of Cargo and also rewrite `path` dependencies
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# to registry (e.g., crates.io) dependencies.
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#
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# If you are reading this file be aware that the original Cargo.toml
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# will likely look very different (and much more reasonable).
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# See Cargo.toml.orig for the original contents.
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[package]
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edition = "2024"
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rust-version = "1.92"
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name = "i-slint-backend-android-activity"
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version = "1.18.1"
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authors = ["Slint Developers <info@slint.dev>"]
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build = "build.rs"
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autolib = false
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autobins = false
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autoexamples = false
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autotests = false
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autobenches = false
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description = "OpenGL rendering backend for Slint"
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homepage = "https://slint.dev"
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readme = "README.md"
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license = "GPL-3.0-only OR LicenseRef-Slint-Royalty-free-2.0 OR LicenseRef-Slint-Software-3.0"
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repository = "https://github.com/slint-ui/slint"
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[package.metadata.docs.rs]
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targets = [
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"aarch64-linux-android",
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"armv7-linux-androideabi",
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"i686-linux-android",
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"x86_64-linux-android",
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]
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features = [
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"native-activity",
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"aa-06",
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]
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rustdoc-args = ["--generate-link-to-definition"]
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[features]
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aa-05 = [
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"android-activity-05",
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"ndk-08",
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]
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aa-06 = [
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"android-activity-06",
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"ndk-09",
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]
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game-activity = [
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"android-activity-06?/game-activity",
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"android-activity-05?/game-activity",
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]
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native-activity = [
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"android-activity-06?/native-activity",
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"android-activity-05?/native-activity",
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]
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unstable-wgpu-29 = ["i-slint-renderer-skia/unstable-wgpu-29"]
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unstable-wgpu-30 = ["i-slint-renderer-skia/unstable-wgpu-30"]
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[lib]
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name = "i_slint_backend_android_activity"
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path = "lib.rs"
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[build-dependencies.android-build]
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version = "0.1.2"
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[target.'cfg(target_os = "android")'.dependencies.android-activity-05]
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version = "0.5"
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optional = true
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package = "android-activity"
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[target.'cfg(target_os = "android")'.dependencies.android-activity-06]
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version = "0.6"
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optional = true
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package = "android-activity"
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[target.'cfg(target_os = "android")'.dependencies.i-slint-common]
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version = "=1.18.1"
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default-features = false
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# Jank-hunt: VSYNC timestamp logging (vsync.rs phase-alignment probes).
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[target.'cfg(target_os = "android")'.dependencies.log]
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version = "0.4"
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[target.'cfg(target_os = "android")'.dependencies.i-slint-core]
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version = "=1.18.1"
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features = [
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"std",
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"image-decoders",
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"svg",
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]
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default-features = false
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[target.'cfg(target_os = "android")'.dependencies.i-slint-renderer-skia]
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version = "=1.18.1"
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default-features = false
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[target.'cfg(target_os = "android")'.dependencies.jni]
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version = "0.22"
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[target.'cfg(target_os = "android")'.dependencies.ndk-08]
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version = "0.8.0"
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features = ["rwh_06"]
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optional = true
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package = "ndk"
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[target.'cfg(target_os = "android")'.dependencies.ndk-09]
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version = "0.9.0"
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features = ["rwh_06"]
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optional = true
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default-features = false
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package = "ndk"
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[target.'cfg(target_os = "android")'.dependencies.raw-window-handle]
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version = "0.6"
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