Greg Pomerantz
d5bbb41bbd
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.
87 lines
3.2 KiB
Rust
87 lines
3.2 KiB
Rust
// Copyright © SixtyFPS GmbH <info@slint.dev>
|
|
// SPDX-License-Identifier: GPL-3.0-only OR LicenseRef-Slint-Royalty-free-2.0 OR LicenseRef-Slint-Software-3.0
|
|
|
|
// cSpell: ignore Dexer multidex
|
|
use std::env;
|
|
use std::path::PathBuf;
|
|
|
|
use android_build::{Dexer, JavaBuild};
|
|
|
|
fn main() {
|
|
println!("cargo:rustc-check-cfg=cfg(slint_nightly_test)");
|
|
if !env::var("TARGET").unwrap().contains("android") {
|
|
return;
|
|
}
|
|
let release_mode = env::var("PROFILE").as_ref().map(|s| s.as_str()) == Ok("release");
|
|
|
|
// This is the only Java source file
|
|
let java_src = "SlintAndroidJavaHelper.java";
|
|
let java_src_path = format!("java/{java_src}");
|
|
|
|
let slint_path: PathBuf = ["dev", "slint", "android-activity"].iter().collect();
|
|
|
|
let out_dir: PathBuf = env::var_os("OUT_DIR").unwrap().into();
|
|
let mut out_class_dir = out_dir.clone();
|
|
out_class_dir.push("java");
|
|
out_class_dir.push(slint_path);
|
|
|
|
if out_class_dir.try_exists().unwrap_or(false) {
|
|
let _ = std::fs::remove_dir_all(&out_class_dir);
|
|
}
|
|
std::fs::create_dir_all(&out_class_dir)
|
|
.unwrap_or_else(|e| panic!("Cannot create output directory {out_class_dir:?} - {e}"));
|
|
|
|
let android_jar = android_build::android_jar(None).expect("No Android platforms found");
|
|
|
|
// Compile the Java file into .class files
|
|
let o = JavaBuild::new()
|
|
.file(&java_src_path)
|
|
.class_path(&android_jar)
|
|
.classes_out_dir(&out_class_dir)
|
|
.java_source_version(8)
|
|
.java_target_version(8)
|
|
.debug_info(android_build::DebugInfo {
|
|
line_numbers: !release_mode,
|
|
variables: !release_mode,
|
|
source_files: !release_mode,
|
|
})
|
|
.command()
|
|
.unwrap_or_else(|e| panic!("Could not generate the java compiler command: {e}"))
|
|
.args(["-encoding", "UTF-8"])
|
|
.output()
|
|
.unwrap_or_else(|e| panic!("Could not run the java compiler: {e}"));
|
|
|
|
if !o.status.success() {
|
|
panic!("Java compilation failed: {}", String::from_utf8_lossy(&o.stderr));
|
|
}
|
|
|
|
let o = Dexer::new()
|
|
.android_jar(&android_jar)
|
|
.class_path(&out_class_dir)
|
|
.collect_classes(&out_class_dir)
|
|
.unwrap()
|
|
.release(release_mode)
|
|
.android_min_api(20) // disable multidex for single dex file output
|
|
.out_dir(out_dir)
|
|
.command()
|
|
.unwrap_or_else(|e| panic!("Could not generate the D8 command: {e}"))
|
|
.output()
|
|
.unwrap_or_else(|e| panic!("Error running D8: {e}"));
|
|
|
|
if !o.status.success() {
|
|
eprintln!("Dex conversion failed: {}", String::from_utf8_lossy(&o.stderr));
|
|
let java_home = android_build::java_home().unwrap();
|
|
let java_ver = android_build::check_javac_version(&java_home).unwrap();
|
|
if java_ver >= 21 {
|
|
eprintln!("WARNING: JDK version 21 is known to cause an error with older android SDK");
|
|
eprintln!("See https://github.com/slint-ui/slint/issues/4973");
|
|
eprintln!(
|
|
"Try downgrading your version of Java to something like JDK 17, or upgrade to the SDK build tools 35"
|
|
);
|
|
}
|
|
panic!("Dex conversion failed");
|
|
}
|
|
|
|
println!("cargo:rerun-if-changed={java_src_path}");
|
|
}
|