1// Copyright 2013 The Flutter Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style license that can be
3// found in the LICENSE file.
4
5#ifndef FLUTTER_SHELL_DIFF_CONTEXT_TEST_H_
6#define FLUTTER_SHELL_DIFF_CONTEXT_TEST_H_
7
8#include "flutter/flow/layers/container_layer.h"
9#include "flutter/flow/layers/display_list_layer.h"
10#include "flutter/flow/layers/opacity_layer.h"
11#include "flutter/flow/testing/layer_test.h"
12
13namespace flutter {
14namespace testing {
15
16class MockLayerTree {
17 public:
18 explicit MockLayerTree(SkISize size = SkISize::Make(w: 1000, h: 1000))
19 : root_(std::make_shared<ContainerLayer>()), size_(size) {}
20
21 ContainerLayer* root() { return root_.get(); }
22 const ContainerLayer* root() const { return root_.get(); }
23
24 PaintRegionMap& paint_region_map() { return paint_region_map_; }
25 const PaintRegionMap& paint_region_map() const { return paint_region_map_; }
26
27 const SkISize& size() const { return size_; }
28
29 private:
30 std::shared_ptr<ContainerLayer> root_;
31 PaintRegionMap paint_region_map_;
32 SkISize size_;
33};
34
35class DiffContextTest : public LayerTest {
36 public:
37 DiffContextTest();
38
39 Damage DiffLayerTree(MockLayerTree& layer_tree,
40 const MockLayerTree& old_layer_tree,
41 const SkIRect& additional_damage = SkIRect::MakeEmpty(),
42 int horizontal_clip_alignment = 0,
43 int vertical_alignment = 0,
44 bool use_raster_cache = true,
45 bool impeller_enabled = false);
46
47 // Create display list consisting of filled rect with given color; Being able
48 // to specify different color is useful to test deep comparison of pictures
49 sk_sp<DisplayList> CreateDisplayList(const SkRect& bounds,
50 DlColor color = DlColor::kBlack());
51
52 std::shared_ptr<DisplayListLayer> CreateDisplayListLayer(
53 const sk_sp<DisplayList>& display_list,
54 const SkPoint& offset = SkPoint::Make(x: 0, y: 0));
55
56 std::shared_ptr<ContainerLayer> CreateContainerLayer(
57 std::initializer_list<std::shared_ptr<Layer>> layers);
58
59 std::shared_ptr<ContainerLayer> CreateContainerLayer(
60 std::shared_ptr<Layer> l) {
61 return CreateContainerLayer(layers: {l});
62 }
63
64 std::shared_ptr<OpacityLayer> CreateOpacityLater(
65 std::initializer_list<std::shared_ptr<Layer>> layers,
66 SkAlpha alpha,
67 const SkPoint& offset = SkPoint::Make(x: 0, y: 0));
68};
69
70} // namespace testing
71} // namespace flutter
72
73#endif // FLUTTER_SHELL_DIFF_CONTEXT_TEST_H_
74

source code of flutter_engine/flutter/flow/testing/diff_context_test.h