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/test/mock_occlusion_tracker.h"
14 #include "cc/trees/layer_tree_host_common.h"
15 #include "testing/gtest/include/gtest/gtest.h"
16 #include "ui/gfx/point_conversions.h"
17 #include "ui/gfx/rect.h"
18 #include "ui/gfx/rect_conversions.h"
19 #include "ui/gfx/size_conversions.h"
20
21 namespace cc {
22
23 // Align with expected and actual output.
24 const char* LayerTestCommon::quad_string = " Quad: ";
25
CanRectFBeSafelyRoundedToRect(const gfx::RectF & r)26 static bool CanRectFBeSafelyRoundedToRect(const gfx::RectF& r) {
27 // Ensure that range of float values is not beyond integer range.
28 if (!r.IsExpressibleAsRect())
29 return false;
30
31 // Ensure that the values are actually integers.
32 if (gfx::ToFlooredPoint(r.origin()) == r.origin() &&
33 gfx::ToFlooredSize(r.size()) == r.size())
34 return true;
35
36 return false;
37 }
38
VerifyQuadsExactlyCoverRect(const QuadList & quads,const gfx::Rect & rect)39 void LayerTestCommon::VerifyQuadsExactlyCoverRect(const QuadList& quads,
40 const gfx::Rect& rect) {
41 Region remaining = rect;
42
43 size_t i = 0;
44 for (QuadList::ConstIterator iter = quads.begin(); iter != quads.end();
45 ++iter) {
46 const DrawQuad* quad = &*iter;
47 gfx::RectF quad_rectf =
48 MathUtil::MapClippedRect(quad->quadTransform(), gfx::RectF(quad->rect));
49
50 // Before testing for exact coverage in the integer world, assert that
51 // rounding will not round the rect incorrectly.
52 ASSERT_TRUE(CanRectFBeSafelyRoundedToRect(quad_rectf));
53
54 gfx::Rect quad_rect = gfx::ToEnclosingRect(quad_rectf);
55
56 EXPECT_TRUE(rect.Contains(quad_rect)) << quad_string << i
57 << " rect: " << rect.ToString()
58 << " quad: " << quad_rect.ToString();
59 EXPECT_TRUE(remaining.Contains(quad_rect))
60 << quad_string << i << " remaining: " << remaining.ToString()
61 << " quad: " << quad_rect.ToString();
62 remaining.Subtract(quad_rect);
63
64 ++i;
65 }
66
67 EXPECT_TRUE(remaining.IsEmpty());
68 }
69
70 // static
VerifyQuadsAreOccluded(const QuadList & quads,const gfx::Rect & occluded,size_t * partially_occluded_count)71 void LayerTestCommon::VerifyQuadsAreOccluded(const QuadList& quads,
72 const gfx::Rect& occluded,
73 size_t* partially_occluded_count) {
74 // No quad should exist if it's fully occluded.
75 for (QuadList::ConstIterator iter = quads.begin(); iter != quads.end();
76 ++iter) {
77 gfx::Rect target_visible_rect = MathUtil::MapEnclosingClippedRect(
78 iter->quadTransform(), iter->visible_rect);
79 EXPECT_FALSE(occluded.Contains(target_visible_rect));
80 }
81
82 // Quads that are fully occluded on one axis only should be shrunken.
83 for (QuadList::ConstIterator iter = quads.begin(); iter != quads.end();
84 ++iter) {
85 const DrawQuad* quad = &*iter;
86 DCHECK(quad->quadTransform().IsIdentityOrIntegerTranslation());
87 gfx::Rect target_rect =
88 MathUtil::MapEnclosingClippedRect(quad->quadTransform(), quad->rect);
89 gfx::Rect target_visible_rect = MathUtil::MapEnclosingClippedRect(
90 quad->quadTransform(), quad->visible_rect);
91
92 bool fully_occluded_horizontal = target_rect.x() >= occluded.x() &&
93 target_rect.right() <= occluded.right();
94 bool fully_occluded_vertical = target_rect.y() >= occluded.y() &&
95 target_rect.bottom() <= occluded.bottom();
96 bool should_be_occluded =
97 target_rect.Intersects(occluded) &&
98 (fully_occluded_vertical || fully_occluded_horizontal);
99 if (!should_be_occluded) {
100 EXPECT_EQ(quad->rect.ToString(), quad->visible_rect.ToString());
101 } else {
102 EXPECT_NE(quad->rect.ToString(), quad->visible_rect.ToString());
103 EXPECT_TRUE(quad->rect.Contains(quad->visible_rect));
104 ++(*partially_occluded_count);
105 }
106 }
107 }
108
LayerImplTest()109 LayerTestCommon::LayerImplTest::LayerImplTest()
110 : client_(FakeLayerTreeHostClient::DIRECT_3D),
111 host_(FakeLayerTreeHost::Create(&client_)),
112 root_layer_impl_(LayerImpl::Create(host_->host_impl()->active_tree(), 1)),
113 render_pass_(RenderPass::Create()) {
114 scoped_ptr<FakeOutputSurface> output_surface = FakeOutputSurface::Create3d();
115 host_->host_impl()->InitializeRenderer(
116 output_surface.PassAs<OutputSurface>());
117 }
118
~LayerImplTest()119 LayerTestCommon::LayerImplTest::~LayerImplTest() {}
120
CalcDrawProps(const gfx::Size & viewport_size)121 void LayerTestCommon::LayerImplTest::CalcDrawProps(
122 const gfx::Size& viewport_size) {
123 LayerImplList layer_list;
124 LayerTreeHostCommon::CalcDrawPropsImplInputsForTesting inputs(
125 root_layer_impl_.get(), viewport_size, &layer_list);
126 LayerTreeHostCommon::CalculateDrawProperties(&inputs);
127 }
128
AppendQuadsWithOcclusion(LayerImpl * layer_impl,const gfx::Rect & occluded)129 void LayerTestCommon::LayerImplTest::AppendQuadsWithOcclusion(
130 LayerImpl* layer_impl,
131 const gfx::Rect& occluded) {
132 AppendQuadsData data;
133
134 render_pass_->quad_list.clear();
135 render_pass_->shared_quad_state_list.clear();
136 occlusion_tracker_.set_occluded_target_rect(occluded);
137 layer_impl->WillDraw(DRAW_MODE_HARDWARE, resource_provider());
138 layer_impl->AppendQuads(render_pass_.get(), occlusion_tracker_, &data);
139 layer_impl->DidDraw(resource_provider());
140 }
141
AppendQuadsForPassWithOcclusion(LayerImpl * layer_impl,const RenderPassId & id,const gfx::Rect & occluded)142 void LayerTestCommon::LayerImplTest::AppendQuadsForPassWithOcclusion(
143 LayerImpl* layer_impl,
144 const RenderPassId& id,
145 const gfx::Rect& occluded) {
146 AppendQuadsData data(id);
147
148 render_pass_->quad_list.clear();
149 render_pass_->shared_quad_state_list.clear();
150 occlusion_tracker_.set_occluded_target_rect(occluded);
151 layer_impl->WillDraw(DRAW_MODE_HARDWARE, resource_provider());
152 layer_impl->AppendQuads(render_pass_.get(), occlusion_tracker_, &data);
153 layer_impl->DidDraw(resource_provider());
154 }
155
AppendSurfaceQuadsWithOcclusion(RenderSurfaceImpl * surface_impl,const gfx::Rect & occluded)156 void LayerTestCommon::LayerImplTest::AppendSurfaceQuadsWithOcclusion(
157 RenderSurfaceImpl* surface_impl,
158 const gfx::Rect& occluded) {
159 AppendQuadsData data;
160
161 render_pass_->quad_list.clear();
162 render_pass_->shared_quad_state_list.clear();
163 occlusion_tracker_.set_occluded_target_rect_for_contributing_surface(
164 occluded);
165 bool for_replica = false;
166 RenderPassId id(1, 1);
167 surface_impl->AppendQuads(
168 render_pass_.get(), occlusion_tracker_, &data, for_replica, id);
169 }
170
171 } // namespace cc
172