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Add benchmark/test for drawing images across frames (#67176)

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Dan Field 2020-10-02 16:41:49 -07:00 committed by GitHub
parent f6cbf488e1
commit 33fb35e951
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88
dev/benchmarks/macrobenchmarks/lib/src/web/bench_build_image.dart Normal file
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@ -0,0 +1,88 @@
// Copyright 2014 The Flutter Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
import 'dart:math' as math;
import 'dart:typed_data';
import 'package:flutter/widgets.dart';
import 'recorder.dart';
const List<int> kTransparentImage = <int>[
0x89, 0x50, 0x4E, 0x47, 0x0D, 0x0A, 0x1A, 0x0A, 0x00, 0x00, 0x00, 0x0D, 0x49,
0x48, 0x44, 0x52, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x01, 0x08, 0x06,
0x00, 0x00, 0x00, 0x1F, 0x15, 0xC4, 0x89, 0x00, 0x00, 0x00, 0x0A, 0x49, 0x44,
0x41, 0x54, 0x78, 0x9C, 0x63, 0x00, 0x01, 0x00, 0x00, 0x05, 0x00, 0x01, 0x0D,
0x0A, 0x2D, 0xB4, 0x00, 0x00, 0x00, 0x00, 0x49, 0x45, 0x4E, 0x44, 0xAE,
];
/// An animated GIF image with 3 1x1 pixel frames (a red, green, and blue
/// frames). The GIF animates forever, and each frame has a 100ms delay.
const List<int> kAnimatedGif = <int> [
0x47, 0x49, 0x46, 0x38, 0x39, 0x61, 0x01, 0x00, 0x01, 0x00, 0xa1, 0x03, 0x00,
0x00, 0x00, 0xff, 0xff, 0x00, 0x00, 0x00, 0xff, 0x00, 0xff, 0xff, 0xff, 0x21,
0xff, 0x0b, 0x4e, 0x45, 0x54, 0x53, 0x43, 0x41, 0x50, 0x45, 0x32, 0x2e, 0x30,
0x03, 0x01, 0x00, 0x00, 0x00, 0x21, 0xf9, 0x04, 0x00, 0x0a, 0x00, 0xff, 0x00,
0x2c, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x01, 0x00, 0x00, 0x02, 0x02, 0x4c,
0x01, 0x00, 0x21, 0xf9, 0x04, 0x00, 0x0a, 0x00, 0xff, 0x00, 0x2c, 0x00, 0x00,
0x00, 0x00, 0x01, 0x00, 0x01, 0x00, 0x00, 0x02, 0x02, 0x54, 0x01, 0x00, 0x21,
0xf9, 0x04, 0x00, 0x0a, 0x00, 0xff, 0x00, 0x2c, 0x00, 0x00, 0x00, 0x00, 0x01,
0x00, 0x01, 0x00, 0x00, 0x02, 0x02, 0x44, 0x01, 0x00, 0x3b,
];
/// Measures expense of constructing Image widgets.
class BenchBuildImage extends WidgetRecorder {
BenchBuildImage() : super(name: benchmarkName);
static const String benchmarkName = 'draw_image';
@override
Widget createWidget() {
return Directionality(
textDirection: TextDirection.ltr,
child: _RotatingWidget(
child: Row(children: <Widget>[
Image.memory(Uint8List.fromList(kTransparentImage)),
Image.memory(Uint8List.fromList(kAnimatedGif)),
]),
),
);
}
}
class _RotatingWidget extends StatefulWidget {
const _RotatingWidget({this.child, Key key}) : super(key: key);
final Widget child;
@override
_RotatingWidgetState createState() => _RotatingWidgetState();
}
class _RotatingWidgetState extends State<_RotatingWidget> with SingleTickerProviderStateMixin {
AnimationController controller;
@override
void initState() {
super.initState();
controller = AnimationController(
duration: const Duration(milliseconds: 200),
vsync: this,
)..repeat();
}
@override
Widget build(BuildContext context) {
return AnimatedBuilder(
animation: controller,
builder: (BuildContext context, Widget child) {
return Transform(
transform: Matrix4.identity()..rotateZ(2 * math.pi * controller.value),
child: widget.child,
);
},
);
}
}

2
dev/benchmarks/macrobenchmarks/lib/web_benchmarks.dart
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@ -12,6 +12,7 @@ import 'package:macrobenchmarks/src/web/bench_text_out_of_picture_bounds.dart';
import 'package:gallery/benchmarks/gallery_automator.dart' show DemoType, typeOfDemo;
import 'src/web/bench_build_image.dart';
import 'src/web/bench_build_material_checkbox.dart';
import 'src/web/bench_card_infinite_scroll.dart';
import 'src/web/bench_child_layers.dart';
@ -39,6 +40,7 @@ const String _galleryBenchmarkPrefix = 'gallery_v2';
/// When adding a new benchmark, add it to this map. Make sure that the name
/// of your benchmark is unique.
final Map<String, RecorderFactory> benchmarks = <String, RecorderFactory>{
BenchBuildImage.benchmarkName: () => BenchBuildImage(),
BenchCardInfiniteScroll.benchmarkName: () => BenchCardInfiniteScroll.forward(),
BenchCardInfiniteScroll.benchmarkNameBackward: () => BenchCardInfiniteScroll.backward(),
BenchClippedOutPictures.benchmarkName: () => BenchClippedOutPictures(),