1 // Copyright 2014 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/layers/surface_layer_impl.h"
6
7 #include "cc/test/layer_test_common.h"
8 #include "testing/gtest/include/gtest/gtest.h"
9
10 namespace cc {
11 namespace {
12
TEST(SurfaceLayerImplTest,Occlusion)13 TEST(SurfaceLayerImplTest, Occlusion) {
14 gfx::Size layer_size(1000, 1000);
15 gfx::Size viewport_size(1000, 1000);
16
17 LayerTestCommon::LayerImplTest impl;
18
19 SurfaceLayerImpl* surface_layer_impl =
20 impl.AddChildToRoot<SurfaceLayerImpl>();
21 surface_layer_impl->SetBounds(layer_size);
22 surface_layer_impl->SetContentBounds(layer_size);
23 surface_layer_impl->SetDrawsContent(true);
24 SurfaceId surface_id(9);
25 surface_layer_impl->SetSurfaceId(surface_id);
26
27 impl.CalcDrawProps(viewport_size);
28
29 {
30 SCOPED_TRACE("No occlusion");
31 gfx::Rect occluded;
32 impl.AppendQuadsWithOcclusion(surface_layer_impl, occluded);
33
34 LayerTestCommon::VerifyQuadsExactlyCoverRect(impl.quad_list(),
35 gfx::Rect(layer_size));
36 EXPECT_EQ(1u, impl.quad_list().size());
37 }
38
39 {
40 SCOPED_TRACE("Full occlusion");
41 gfx::Rect occluded(surface_layer_impl->visible_content_rect());
42 impl.AppendQuadsWithOcclusion(surface_layer_impl, occluded);
43
44 LayerTestCommon::VerifyQuadsExactlyCoverRect(impl.quad_list(), gfx::Rect());
45 EXPECT_EQ(impl.quad_list().size(), 0u);
46 }
47
48 {
49 SCOPED_TRACE("Partial occlusion");
50 gfx::Rect occluded(200, 0, 800, 1000);
51 impl.AppendQuadsWithOcclusion(surface_layer_impl, occluded);
52
53 size_t partially_occluded_count = 0;
54 LayerTestCommon::VerifyQuadsAreOccluded(
55 impl.quad_list(), occluded, &partially_occluded_count);
56 // The layer outputs one quad, which is partially occluded.
57 EXPECT_EQ(1u, impl.quad_list().size());
58 EXPECT_EQ(1u, partially_occluded_count);
59 }
60 }
61
62 } // namespace
63 } // namespace cc
64