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77aa495eff
The update is copied from an update we made to a Google-internal client: cl/260202900 The update will save 1 shader compilation. This should help solve our regression: https://github.com/flutter/flutter/issues/31203 More regressions on iOS might be introduced later by https://github.com/flutter/engine/pull/9813#issuecomment-520039890 Unfortunately, we didn't rebase our benchmarks so such regressions were not detected. Hence to fully solve https://github.com/flutter/flutter/issues/31203, we might need to revert some change in https://github.com/flutter/engine/pull/9813 to make iOS shader warm-up happen on the GPU thread again.
37 lines
1.0 KiB
Dart
37 lines
1.0 KiB
Dart
// Copyright 2019 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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import 'package:flutter/painting.dart';
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import 'package:flutter_test/flutter_test.dart';
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class TestCanvas implements Canvas {
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TestCanvas([this.invocations]);
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final List<Invocation> invocations;
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@override
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void noSuchMethod(Invocation invocation) {
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invocations?.add(invocation);
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}
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}
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void main() {
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test('DefaultShaderWarmUp has expected canvas invocations', () {
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final List<Invocation> invocations = <Invocation>[];
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final TestCanvas canvas = TestCanvas(invocations);
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const DefaultShaderWarmUp s = DefaultShaderWarmUp();
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s.warmUpOnCanvas(canvas);
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bool hasDrawRectAfterClipRRect = false;
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for (int i = 0; i < invocations.length - 1; i += 1) {
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if (invocations[i].memberName == #clipRRect && invocations[i + 1].memberName == #drawRect) {
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hasDrawRectAfterClipRRect = true;
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break;
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}
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}
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expect(hasDrawRectAfterClipRRect, true);
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});
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}
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