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/render_surface_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 13 TEST(RenderSurfaceLayerImplTest, Occlusion) { 14 gfx::Size layer_size(1000, 1000); 15 gfx::Size viewport_size(1000, 1000); 16 17 LayerTestCommon::LayerImplTest impl; 18 19 LayerImpl* owning_layer_impl = impl.AddChildToRoot<LayerImpl>(); 20 owning_layer_impl->SetBounds(layer_size); 21 owning_layer_impl->SetContentBounds(layer_size); 22 owning_layer_impl->SetDrawsContent(true); 23 owning_layer_impl->SetForceRenderSurface(true); 24 25 impl.CalcDrawProps(viewport_size); 26 27 RenderSurfaceImpl* render_surface_impl = owning_layer_impl->render_surface(); 28 ASSERT_TRUE(render_surface_impl); 29 30 { 31 SCOPED_TRACE("No occlusion"); 32 gfx::Rect occluded; 33 impl.AppendSurfaceQuadsWithOcclusion(render_surface_impl, occluded); 34 35 LayerTestCommon::VerifyQuadsExactlyCoverRect(impl.quad_list(), 36 gfx::Rect(layer_size)); 37 EXPECT_EQ(1u, impl.quad_list().size()); 38 } 39 40 { 41 SCOPED_TRACE("Full occlusion"); 42 gfx::Rect occluded(owning_layer_impl->visible_content_rect()); 43 impl.AppendSurfaceQuadsWithOcclusion(render_surface_impl, occluded); 44 45 LayerTestCommon::VerifyQuadsExactlyCoverRect(impl.quad_list(), gfx::Rect()); 46 EXPECT_EQ(impl.quad_list().size(), 0u); 47 } 48 49 { 50 SCOPED_TRACE("Partial occlusion"); 51 gfx::Rect occluded(200, 0, 800, 1000); 52 impl.AppendSurfaceQuadsWithOcclusion(render_surface_impl, occluded); 53 54 size_t partially_occluded_count = 0; 55 LayerTestCommon::VerifyQuadsAreOccluded( 56 impl.quad_list(), occluded, &partially_occluded_count); 57 // The layer outputs one quad, which is partially occluded. 58 EXPECT_EQ(1u, impl.quad_list().size()); 59 EXPECT_EQ(1u, partially_occluded_count); 60 } 61 } 62 63 } // namespace 64 } // namespace cc 65
