fix: хм
This commit is contained in:
Jganenokk
@@ -1,4 +1,5 @@
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import 'dart:math' as math;
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import 'dart:ui' as ui;
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import 'package:flutter/material.dart';
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import 'package:flutter/scheduler.dart';
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@@ -10,15 +11,34 @@ class FpsOverlayLayer extends StatefulWidget {
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State<FpsOverlayLayer> createState() => _FpsOverlayLayerState();
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}
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class _FrameSample {
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const _FrameSample({
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required this.endMicros,
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required this.costMicros,
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required this.rasterBound,
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});
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final int endMicros;
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final int costMicros;
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final bool rasterBound;
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}
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class _FpsOverlayLayerState extends State<FpsOverlayLayer> {
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static const int _maxSamples = 90;
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static const int _minUiRefreshMs = 160;
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static const double _initialWidthGuess = 96;
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static const int _fpsWindowMicros = 1000000;
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static const int _jankWindowMicros = 3000000;
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static const int _minUiRefreshMs = 100;
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static const double _initialWidthGuess = 132;
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static const double _initialHeightGuess = 36;
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final List<int> _frameMicros = <int>[];
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final List<_FrameSample> _recent = <_FrameSample>[];
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final List<_FrameSample> _janky = <_FrameSample>[];
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final GlobalKey _badgeKey = GlobalKey();
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double _refreshRate = 60;
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double _budgetMicros = 1000000 / 60;
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double _fps = 0;
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int _worstMicros = 0;
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int _jankCount = 0;
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bool _worstRasterBound = false;
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DateTime _lastUiUpdate = DateTime.fromMillisecondsSinceEpoch(0);
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double? _left;
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double? _top;
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@@ -38,6 +58,8 @@ class _FpsOverlayLayerState extends State<FpsOverlayLayer> {
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@override
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void didChangeDependencies() {
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super.didChangeDependencies();
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_refreshRate = _resolveRefreshRate();
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_budgetMicros = 1000000 / _refreshRate;
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if (_left != null && _top != null) {
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WidgetsBinding.instance.addPostFrameCallback((_) {
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if (mounted) {
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@@ -47,6 +69,11 @@ class _FpsOverlayLayerState extends State<FpsOverlayLayer> {
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}
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}
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double _resolveRefreshRate() {
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final hz = View.of(context).display.refreshRate;
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return hz.isFinite && hz >= 30 ? hz : 60;
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}
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void _ensureInitialPosition() {
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if (_left != null) return;
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final mq = MediaQuery.of(context);
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@@ -63,12 +90,8 @@ class _FpsOverlayLayerState extends State<FpsOverlayLayer> {
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final bottomMax = screen.height - mq.padding.bottom;
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final box = _badgeKey.currentContext?.findRenderObject() as RenderBox?;
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final bw = box?.hasSize == true
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? box!.size.width
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: _initialWidthGuess;
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final bh = box?.hasSize == true
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? box!.size.height
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: _initialHeightGuess;
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final bw = box?.hasSize == true ? box!.size.width : _initialWidthGuess;
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final bh = box?.hasSize == true ? box!.size.height : _initialHeightGuess;
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_left = _left!.clamp(0.0, math.max(0.0, screen.width - bw));
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_top = _top!.clamp(topMin, math.max(topMin, bottomMax - bh));
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@@ -76,23 +99,54 @@ class _FpsOverlayLayerState extends State<FpsOverlayLayer> {
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void _onTimings(List<FrameTiming> timings) {
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for (final t in timings) {
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final us = t.totalSpan.inMicroseconds;
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if (us <= 0) continue;
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_frameMicros.add(us);
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while (_frameMicros.length > _maxSamples) {
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_frameMicros.removeAt(0);
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final build = t.buildDuration.inMicroseconds;
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final raster = t.rasterDuration.inMicroseconds;
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final sample = _FrameSample(
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endMicros: t.timestampInMicroseconds(ui.FramePhase.rasterFinish),
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costMicros: build > raster ? build : raster,
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rasterBound: raster >= build,
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);
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_recent.add(sample);
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if (sample.costMicros > _budgetMicros) _janky.add(sample);
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}
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if (_recent.isEmpty) return;
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final newest = _recent.last.endMicros;
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_recent.removeWhere((s) => newest - s.endMicros > _fpsWindowMicros);
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_janky.removeWhere((s) => newest - s.endMicros > _jankWindowMicros);
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var sum = 0;
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for (final s in _recent) {
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sum += s.costMicros;
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}
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var worst = 0;
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var worstRasterBound = false;
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for (final s in _janky) {
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if (s.costMicros > worst) {
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worst = s.costMicros;
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worstRasterBound = s.rasterBound;
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}
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}
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final mean = sum / _recent.length;
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final fps = 1000000 / math.max(mean, _budgetMicros);
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final now = DateTime.now();
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if (now.difference(_lastUiUpdate).inMilliseconds < _minUiRefreshMs) {
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return;
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}
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if (now.difference(_lastUiUpdate).inMilliseconds < _minUiRefreshMs) return;
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_lastUiUpdate = now;
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if (!mounted || _frameMicros.isEmpty) return;
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final sum = _frameMicros.fold<int>(0, (a, b) => a + b);
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final avg = sum / _frameMicros.length;
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final fps = avg > 0 ? (1000000.0 / avg).clamp(0.0, 999.0) : 0.0;
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setState(() => _fps = fps);
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if (!mounted) return;
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setState(() {
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_fps = fps;
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_worstMicros = worst;
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_jankCount = _janky.length;
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_worstRasterBound = worstRasterBound;
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});
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}
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Color get _tint {
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if (_jankCount == 0) return const Color(0xFFB8F5C6);
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if (_worstMicros > _budgetMicros * 3) return const Color(0xFFFFAB91);
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return const Color(0xFFFFE082);
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}
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@override
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@@ -100,6 +154,7 @@ class _FpsOverlayLayerState extends State<FpsOverlayLayer> {
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_ensureInitialPosition();
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_clampPositionToScreen();
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final tint = _tint;
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return Positioned(
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left: _left,
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top: _top,
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@@ -123,18 +178,31 @@ class _FpsOverlayLayerState extends State<FpsOverlayLayer> {
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color: const Color(0xCC000000),
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borderRadius: BorderRadius.circular(8),
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),
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child: Text(
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'${_fps.round()} FPS',
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style: TextStyle(
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color: _fps >= 55
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? const Color(0xFFB8F5C6)
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: _fps >= 30
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? const Color(0xFFFFE082)
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: const Color(0xFFFFAB91),
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fontSize: 13,
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fontWeight: FontWeight.w600,
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fontFeatures: const [FontFeature.tabularFigures()],
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),
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child: Column(
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mainAxisSize: MainAxisSize.min,
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crossAxisAlignment: CrossAxisAlignment.end,
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children: [
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Text(
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'${_fps.round()} FPS · ${_refreshRate.round()} Hz',
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style: TextStyle(
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color: tint,
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fontSize: 13,
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fontWeight: FontWeight.w600,
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fontFeatures: const [FontFeature.tabularFigures()],
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),
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),
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if (_jankCount > 0)
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Text(
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'${(_worstMicros / 1000).round()} ms ×$_jankCount '
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'${_worstRasterBound ? 'gpu' : 'ui'}',
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style: TextStyle(
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color: tint,
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fontSize: 11,
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fontWeight: FontWeight.w500,
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fontFeatures: const [FontFeature.tabularFigures()],
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),
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),
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],
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),
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),
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),
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