1 // Copyright 2012 The Chromium 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 #include "cc/test/layer_test_common.h"
6
7 #include "cc/base/math_util.h"
8 #include "cc/base/region.h"
9 #include "cc/layers/append_quads_data.h"
10 #include "cc/quads/draw_quad.h"
11 #include "cc/quads/render_pass.h"
12 #include "cc/test/fake_output_surface.h"
13 #include "cc/trees/layer_tree_host_common.h"
14 #include "testing/gtest/include/gtest/gtest.h"
15 #include "ui/gfx/point_conversions.h"
16 #include "ui/gfx/rect.h"
17 #include "ui/gfx/rect_conversions.h"
18 #include "ui/gfx/size_conversions.h"
19
20 namespace cc {
21
22 // Align with expected and actual output.
23 const char* LayerTestCommon::quad_string = " Quad: ";
24
CanRectFBeSafelyRoundedToRect(const gfx::RectF & r)25 static bool CanRectFBeSafelyRoundedToRect(const gfx::RectF& r) {
26 // Ensure that range of float values is not beyond integer range.
27 if (!r.IsExpressibleAsRect())
28 return false;
29
30 // Ensure that the values are actually integers.
31 if (gfx::ToFlooredPoint(r.origin()) == r.origin() &&
32 gfx::ToFlooredSize(r.size()) == r.size())
33 return true;
34
35 return false;
36 }
37
VerifyQuadsExactlyCoverRect(const QuadList & quads,const gfx::Rect & rect)38 void LayerTestCommon::VerifyQuadsExactlyCoverRect(const QuadList& quads,
39 const gfx::Rect& rect) {
40 Region remaining = rect;
41
42 for (size_t i = 0; i < quads.size(); ++i) {
43 DrawQuad* quad = quads[i];
44 gfx::RectF quad_rectf =
45 MathUtil::MapClippedRect(quad->quadTransform(), gfx::RectF(quad->rect));
46
47 // Before testing for exact coverage in the integer world, assert that
48 // rounding will not round the rect incorrectly.
49 ASSERT_TRUE(CanRectFBeSafelyRoundedToRect(quad_rectf));
50
51 gfx::Rect quad_rect = gfx::ToEnclosingRect(quad_rectf);
52
53 EXPECT_TRUE(rect.Contains(quad_rect)) << quad_string << i
54 << " rect: " << rect.ToString()
55 << " quad: " << quad_rect.ToString();
56 EXPECT_TRUE(remaining.Contains(quad_rect))
57 << quad_string << i << " remaining: " << remaining.ToString()
58 << " quad: " << quad_rect.ToString();
59 remaining.Subtract(quad_rect);
60 }
61
62 EXPECT_TRUE(remaining.IsEmpty());
63 }
64
65 // static
VerifyQuadsCoverRectWithOcclusion(const QuadList & quads,const gfx::Rect & rect,const gfx::Rect & occluded,size_t * partially_occluded_count)66 void LayerTestCommon::VerifyQuadsCoverRectWithOcclusion(
67 const QuadList& quads,
68 const gfx::Rect& rect,
69 const gfx::Rect& occluded,
70 size_t* partially_occluded_count) {
71 // No quad should exist if it's fully occluded.
72 for (size_t i = 0; i < quads.size(); ++i) {
73 EXPECT_FALSE(occluded.Contains(quads[i]->visible_rect));
74 }
75
76 // Quads that are fully occluded on one axis only should be shrunken.
77 for (size_t i = 0; i < quads.size(); ++i) {
78 DrawQuad* quad = quads[i];
79 DCHECK(quad->quadTransform().IsIdentityOrIntegerTranslation());
80 gfx::Rect target_rect =
81 MathUtil::MapEnclosingClippedRect(quad->quadTransform(), quad->rect);
82 gfx::Rect target_visible_rect = MathUtil::MapEnclosingClippedRect(
83 quad->quadTransform(), quad->visible_rect);
84
85 bool fully_occluded_horizontal = target_rect.x() >= occluded.x() &&
86 target_rect.right() <= occluded.right();
87 bool fully_occluded_vertical = target_rect.y() >= occluded.y() &&
88 target_rect.bottom() <= occluded.bottom();
89 bool should_be_occluded =
90 target_rect.Intersects(occluded) &&
91 (fully_occluded_vertical || fully_occluded_horizontal);
92 if (!should_be_occluded) {
93 EXPECT_EQ(quad->rect.ToString(), quad->visible_rect.ToString());
94 } else {
95 EXPECT_NE(quad->rect.ToString(), quad->visible_rect.ToString());
96 EXPECT_TRUE(quad->rect.Contains(quad->visible_rect));
97 ++(*partially_occluded_count);
98 }
99 }
100 }
101
LayerImplTest()102 LayerTestCommon::LayerImplTest::LayerImplTest()
103 : host_(FakeLayerTreeHost::Create()),
104 root_layer_impl_(LayerImpl::Create(host_->host_impl()->active_tree(), 1)),
105 render_pass_(RenderPass::Create()),
106 quad_culler_(make_scoped_ptr(
107 new MockQuadCuller(render_pass_.get(), &occlusion_tracker_))) {
108 scoped_ptr<FakeOutputSurface> output_surface = FakeOutputSurface::Create3d();
109 host_->host_impl()->InitializeRenderer(
110 output_surface.PassAs<OutputSurface>());
111 }
112
~LayerImplTest()113 LayerTestCommon::LayerImplTest::~LayerImplTest() {}
114
CalcDrawProps(const gfx::Size & viewport_size)115 void LayerTestCommon::LayerImplTest::CalcDrawProps(
116 const gfx::Size& viewport_size) {
117 LayerImplList layer_list;
118 LayerTreeHostCommon::CalcDrawPropsImplInputsForTesting inputs(
119 root_layer_impl_.get(), viewport_size, &layer_list);
120 LayerTreeHostCommon::CalculateDrawProperties(&inputs);
121 }
122
AppendQuadsWithOcclusion(LayerImpl * layer_impl,const gfx::Rect & occluded)123 void LayerTestCommon::LayerImplTest::AppendQuadsWithOcclusion(
124 LayerImpl* layer_impl,
125 const gfx::Rect& occluded) {
126 AppendQuadsData data;
127
128 quad_culler_->clear_lists();
129 quad_culler_->set_occluded_target_rect(occluded);
130 layer_impl->WillDraw(DRAW_MODE_HARDWARE, resource_provider());
131 layer_impl->AppendQuads(quad_culler_.get(), &data);
132 layer_impl->DidDraw(resource_provider());
133 }
134
AppendQuadsForPassWithOcclusion(LayerImpl * layer_impl,const RenderPass::Id & id,const gfx::Rect & occluded)135 void LayerTestCommon::LayerImplTest::AppendQuadsForPassWithOcclusion(
136 LayerImpl* layer_impl,
137 const RenderPass::Id& id,
138 const gfx::Rect& occluded) {
139 AppendQuadsData data(id);
140
141 quad_culler_->clear_lists();
142 quad_culler_->set_occluded_target_rect(occluded);
143 layer_impl->WillDraw(DRAW_MODE_HARDWARE, resource_provider());
144 layer_impl->AppendQuads(quad_culler_.get(), &data);
145 layer_impl->DidDraw(resource_provider());
146 }
147
AppendSurfaceQuadsWithOcclusion(RenderSurfaceImpl * surface_impl,const gfx::Rect & occluded)148 void LayerTestCommon::LayerImplTest::AppendSurfaceQuadsWithOcclusion(
149 RenderSurfaceImpl* surface_impl,
150 const gfx::Rect& occluded) {
151 AppendQuadsData data;
152
153 quad_culler_->clear_lists();
154 quad_culler_->set_occluded_target_rect_for_contributing_surface(occluded);
155 bool for_replica = false;
156 RenderPass::Id id(1, 1);
157 surface_impl->AppendQuads(quad_culler_.get(), &data, for_replica, id);
158 }
159
160 } // namespace cc
161