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 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 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 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 } 101 102 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 } 112 113 LayerTestCommon::LayerImplTest::~LayerImplTest() {} 114 115 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 } 122 123 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 } 134 135 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 } 147 148 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