mirror of
https://github.com/flutter/flutter
synced 2024-10-13 19:52:53 +00:00
add the transformPoint and transformRect benchmarks (#36026)
This commit is contained in:
parent
6a377ba3e3
commit
6372250995
|
@ -0,0 +1,140 @@
|
|||
// Copyright 2019 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 'package:flutter/painting.dart';
|
||||
import 'package:flutter/rendering.dart';
|
||||
import 'package:vector_math/vector_math_64.dart';
|
||||
|
||||
import '../common.dart';
|
||||
|
||||
const int _kNumIterations = 1000000;
|
||||
const int _kNumWarmUp = 10000;
|
||||
|
||||
void main() {
|
||||
assert(false, "Don't run benchmarks in checked mode! Use 'flutter run --release'.");
|
||||
print('MatrixUtils.transformRect and .transformPoint benchmark...');
|
||||
|
||||
Matrix4 _makePerspective(double radius, double angle, double perspective) {
|
||||
return MatrixUtils.createCylindricalProjectionTransform(
|
||||
radius: radius,
|
||||
angle: angle,
|
||||
perspective: perspective,
|
||||
);
|
||||
}
|
||||
|
||||
final List<Matrix4> _affineTransforms = <Matrix4>[
|
||||
Matrix4.identity()..scale(1.2, 1.3, 1.0)..rotateZ(0.1),
|
||||
Matrix4.identity()..translate(12.0, 13.0, 10.0),
|
||||
Matrix4.identity()..scale(1.2, 1.3, 1.0)..translate(12.0, 13.0, 10.0),
|
||||
];
|
||||
final List<Matrix4> _perspectiveTransforms = <Matrix4>[
|
||||
_makePerspective(10.0, math.pi / 8.0, 0.3),
|
||||
_makePerspective( 8.0, math.pi / 8.0, 0.2),
|
||||
_makePerspective( 1.0, math.pi / 4.0, 0.1)..rotateX(0.1),
|
||||
];
|
||||
final List<Rect> _rectangles = <Rect>[
|
||||
const Rect.fromLTRB(1.1, 1.2, 1.5, 1.8),
|
||||
const Rect.fromLTRB(1.1, 1.2, 0.0, 1.0),
|
||||
const Rect.fromLTRB(1.1, 1.2, 1.3, 1.0),
|
||||
const Rect.fromLTRB(-1.1, -1.2, 0.0, 1.0),
|
||||
const Rect.fromLTRB(-1.1, -1.2, -1.5, -1.8),
|
||||
];
|
||||
final List<Offset> _offsets = <Offset>[
|
||||
const Offset(1.1, 1.2),
|
||||
const Offset(1.5, 1.8),
|
||||
const Offset(0.0, 0.0),
|
||||
const Offset(-1.1, -1.2),
|
||||
const Offset(-1.5, -1.8),
|
||||
];
|
||||
final int nAffine = _affineTransforms.length;
|
||||
final int nPerspective = _perspectiveTransforms.length;
|
||||
final int nRectangles = _rectangles.length;
|
||||
final int nOffsets = _offsets.length;
|
||||
|
||||
// Warm up lap
|
||||
for (int i = 0; i < _kNumWarmUp; i += 1) {
|
||||
final Matrix4 transform = _perspectiveTransforms[i % nPerspective];
|
||||
final Rect rect = _rectangles[(i ~/ nPerspective) % nRectangles];
|
||||
final Offset offset = _offsets[(i ~/ nPerspective) % nOffsets];
|
||||
MatrixUtils.transformRect(transform, rect);
|
||||
MatrixUtils.transformPoint(transform, offset);
|
||||
}
|
||||
for (int i = 0; i < _kNumWarmUp; i += 1) {
|
||||
final Matrix4 transform = _affineTransforms[i % nAffine];
|
||||
final Rect rect = _rectangles[(i ~/ nAffine) % nRectangles];
|
||||
final Offset offset = _offsets[(i ~/ nAffine) % nOffsets];
|
||||
MatrixUtils.transformRect(transform, rect);
|
||||
MatrixUtils.transformPoint(transform, offset);
|
||||
}
|
||||
|
||||
final Stopwatch watch = Stopwatch();
|
||||
watch.start();
|
||||
for (int i = 0; i < _kNumIterations; i += 1) {
|
||||
final Matrix4 transform = _perspectiveTransforms[i % nPerspective];
|
||||
final Rect rect = _rectangles[(i ~/ nPerspective) % nRectangles];
|
||||
MatrixUtils.transformRect(transform, rect);
|
||||
}
|
||||
watch.stop();
|
||||
final int rectMicrosecondsPerspective = watch.elapsedMicroseconds;
|
||||
|
||||
watch.reset();
|
||||
watch.start();
|
||||
for (int i = 0; i < _kNumIterations; i += 1) {
|
||||
final Matrix4 transform = _affineTransforms[i % nAffine];
|
||||
final Rect rect = _rectangles[(i ~/ nAffine) % nRectangles];
|
||||
MatrixUtils.transformRect(transform, rect);
|
||||
}
|
||||
watch.stop();
|
||||
final int rectMicrosecondsAffine = watch.elapsedMicroseconds;
|
||||
|
||||
watch.reset();
|
||||
watch.start();
|
||||
for (int i = 0; i < _kNumIterations; i += 1) {
|
||||
final Matrix4 transform = _perspectiveTransforms[i % nPerspective];
|
||||
final Offset offset = _offsets[(i ~/ nPerspective) % nOffsets];
|
||||
MatrixUtils.transformPoint(transform, offset);
|
||||
}
|
||||
watch.stop();
|
||||
final int pointMicrosecondsPerspective = watch.elapsedMicroseconds;
|
||||
|
||||
watch.reset();
|
||||
watch.start();
|
||||
for (int i = 0; i < _kNumIterations; i += 1) {
|
||||
final Matrix4 transform = _affineTransforms[i % nAffine];
|
||||
final Offset offset = _offsets[(i ~/ nAffine) % nOffsets];
|
||||
MatrixUtils.transformPoint(transform, offset);
|
||||
}
|
||||
watch.stop();
|
||||
final int pointMicrosecondsAffine = watch.elapsedMicroseconds;
|
||||
|
||||
final BenchmarkResultPrinter printer = BenchmarkResultPrinter();
|
||||
const double scale = 1000.0 / _kNumIterations;
|
||||
printer.addResult(
|
||||
description: 'MatrixUtils.transformRectPerspective',
|
||||
value: rectMicrosecondsPerspective * scale,
|
||||
unit: 'ns per iteration',
|
||||
name: 'MatrixUtils_persp_transformRect_iteration',
|
||||
);
|
||||
printer.addResult(
|
||||
description: 'MatrixUtils.transformRectAffine',
|
||||
value: rectMicrosecondsAffine * scale,
|
||||
unit: 'ns per iteration',
|
||||
name: 'MatrixUtils_affine_transformRect_iteration',
|
||||
);
|
||||
printer.addResult(
|
||||
description: 'MatrixUtils.transformPointPerspective',
|
||||
value: pointMicrosecondsPerspective * scale,
|
||||
unit: 'ns per iteration',
|
||||
name: 'MatrixUtils_persp_transformPoint_iteration',
|
||||
);
|
||||
printer.addResult(
|
||||
description: 'MatrixUtils.transformPointAffine',
|
||||
value: pointMicrosecondsAffine * scale,
|
||||
unit: 'ns per iteration',
|
||||
name: 'MatrixUtils_affine_transformPoint_iteration',
|
||||
);
|
||||
printer.printToStdout();
|
||||
}
|
|
@ -51,6 +51,7 @@ TaskFunction createMicrobenchmarkTask() {
|
|||
final Map<String, double> allResults = <String, double>{
|
||||
...await _runMicrobench('lib/stocks/layout_bench.dart'),
|
||||
...await _runMicrobench('lib/stocks/build_bench.dart'),
|
||||
...await _runMicrobench('lib/geometry/matrix_utils_transform_bench.dart'),
|
||||
...await _runMicrobench('lib/geometry/rrect_contains_bench.dart'),
|
||||
...await _runMicrobench('lib/gestures/velocity_tracker_bench.dart'),
|
||||
...await _runMicrobench('lib/gestures/gesture_detector_bench.dart'),
|
||||
|
|
Loading…
Reference in a new issue