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| 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/picture_layer_tiling_set.h" | |
| 6 | |
| 7 #include "cc/resource_pool.h" | |
| 8 #include "cc/resource_provider.h" | |
| 9 #include "cc/test/fake_output_surface.h" | |
| 10 #include "cc/test/fake_picture_layer_tiling_client.h" | |
| 11 #include "cc/test/fake_tile_manager_client.h" | |
| 12 #include "testing/gtest/include/gtest/gtest.h" | |
| 13 #include "ui/gfx/size_conversions.h" | |
| 14 | |
| 15 namespace cc { | |
| 16 namespace { | |
| 17 | |
| 18 TEST(PictureLayerTilingSetTest, NoResources) { | |
| 19 FakePictureLayerTilingClient client; | |
| 20 PictureLayerTilingSet set(&client); | |
| 21 client.SetTileSize(gfx::Size(256, 256)); | |
| 22 | |
| 23 gfx::Size layer_bounds(1000, 800); | |
| 24 set.SetLayerBounds(layer_bounds); | |
| 25 | |
| 26 set.AddTiling(1.0); | |
| 27 set.AddTiling(1.5); | |
| 28 set.AddTiling(2.0); | |
| 29 | |
| 30 float contents_scale = 2.0; | |
| 31 gfx::Size content_bounds( | |
| 32 gfx::ToCeiledSize(gfx::ScaleSize(layer_bounds, contents_scale))); | |
| 33 gfx::Rect content_rect(gfx::Point(), content_bounds); | |
| 34 | |
| 35 Region remaining(content_rect); | |
| 36 PictureLayerTilingSet::Iterator iter( | |
| 37 &set, | |
| 38 contents_scale, | |
| 39 content_rect, | |
| 40 contents_scale, | |
| 41 PictureLayerTiling::LayerDeviceAlignmentUnknown); | |
| 42 for (; iter; ++iter) { | |
| 43 gfx::Rect geometry_rect = iter.geometry_rect(); | |
| 44 EXPECT_TRUE(content_rect.Contains(geometry_rect)); | |
| 45 ASSERT_TRUE(remaining.Contains(geometry_rect)); | |
| 46 remaining.Subtract(geometry_rect); | |
| 47 | |
| 48 // No tiles have resources, so no iter represents a real tile. | |
| 49 EXPECT_FALSE(*iter); | |
| 50 } | |
| 51 EXPECT_TRUE(remaining.IsEmpty()); | |
| 52 } | |
| 53 | |
| 54 class PictureLayerTilingSetTestWithResources : public testing::Test { | |
| 55 public: | |
| 56 void runTest( | |
| 57 int num_tilings, | |
| 58 float min_scale, | |
| 59 float scale_increment, | |
| 60 float ideal_contents_scale, | |
| 61 float expected_scale) { | |
| 62 scoped_ptr<FakeOutputSurface> output_surface = | |
| 63 FakeOutputSurface::Create3d(); | |
| 64 scoped_ptr<ResourceProvider> resource_provider = | |
| 65 ResourceProvider::Create(output_surface.get()); | |
| 66 | |
| 67 FakePictureLayerTilingClient client; | |
| 68 client.SetTileSize(gfx::Size(256, 256)); | |
| 69 PictureLayerTilingSet set(&client); | |
| 70 | |
| 71 gfx::Size layer_bounds(1000, 800); | |
| 72 set.SetLayerBounds(layer_bounds); | |
| 73 | |
| 74 float scale = min_scale; | |
| 75 for (int i = 0; i < num_tilings; ++i, scale += scale_increment) { | |
| 76 PictureLayerTiling* tiling = set.AddTiling(scale); | |
| 77 std::vector<Tile*> tiles = tiling->AllTilesForTesting(); | |
| 78 for (size_t i = 0; i < tiles.size(); ++i) { | |
| 79 EXPECT_FALSE(tiles[i]->drawing_info().GetResourceForTesting()); | |
| 80 | |
| 81 tiles[i]->drawing_info().GetResourceForTesting() = | |
| 82 make_scoped_ptr(new ResourcePool::Resource( | |
| 83 resource_provider.get(), | |
| 84 gfx::Size(1, 1), | |
| 85 resource_provider->best_texture_format())); | |
| 86 } | |
| 87 } | |
| 88 | |
| 89 float max_contents_scale = scale; | |
| 90 gfx::Size content_bounds( | |
| 91 gfx::ToCeiledSize(gfx::ScaleSize(layer_bounds, max_contents_scale))); | |
| 92 gfx::Rect content_rect(gfx::Point(), content_bounds); | |
| 93 | |
| 94 Region remaining(content_rect); | |
| 95 PictureLayerTilingSet::Iterator iter( | |
| 96 &set, | |
| 97 max_contents_scale, | |
| 98 content_rect, | |
| 99 ideal_contents_scale, | |
| 100 PictureLayerTiling::LayerDeviceAlignmentUnknown); | |
| 101 for (; iter; ++iter) { | |
| 102 gfx::Rect geometry_rect = iter.geometry_rect(); | |
| 103 EXPECT_TRUE(content_rect.Contains(geometry_rect)); | |
| 104 ASSERT_TRUE(remaining.Contains(geometry_rect)); | |
| 105 remaining.Subtract(geometry_rect); | |
| 106 | |
| 107 float scale = iter.CurrentTiling()->contents_scale(); | |
| 108 EXPECT_EQ(expected_scale, scale); | |
| 109 | |
| 110 if (num_tilings) | |
| 111 EXPECT_TRUE(*iter); | |
| 112 else | |
| 113 EXPECT_FALSE(*iter); | |
| 114 } | |
| 115 EXPECT_TRUE(remaining.IsEmpty()); | |
| 116 } | |
| 117 }; | |
| 118 | |
| 119 TEST_F(PictureLayerTilingSetTestWithResources, NoTilings) { | |
| 120 runTest(0, 0.f, 0.f, 2.f, 0.f); | |
| 121 } | |
| 122 TEST_F(PictureLayerTilingSetTestWithResources, OneTiling_Smaller) { | |
| 123 runTest(1, 1.f, 0.f, 2.f, 1.f); | |
| 124 } | |
| 125 TEST_F(PictureLayerTilingSetTestWithResources, OneTiling_Larger) { | |
| 126 runTest(1, 3.f, 0.f, 2.f, 3.f); | |
| 127 } | |
| 128 TEST_F(PictureLayerTilingSetTestWithResources, TwoTilings_Smaller) { | |
| 129 runTest(2, 1.f, 1.f, 3.f, 2.f); | |
| 130 } | |
| 131 | |
| 132 TEST_F(PictureLayerTilingSetTestWithResources, TwoTilings_SmallerEqual) { | |
| 133 runTest(2, 1.f, 1.f, 2.f, 2.f); | |
| 134 } | |
| 135 | |
| 136 TEST_F(PictureLayerTilingSetTestWithResources, TwoTilings_LargerEqual) { | |
| 137 runTest(2, 1.f, 1.f, 1.f, 1.f); | |
| 138 } | |
| 139 | |
| 140 TEST_F(PictureLayerTilingSetTestWithResources, TwoTilings_Larger) { | |
| 141 runTest(2, 2.f, 8.f, 1.f, 2.f); | |
| 142 } | |
| 143 | |
| 144 TEST_F(PictureLayerTilingSetTestWithResources, ManyTilings_Equal) { | |
| 145 runTest(10, 1.f, 1.f, 5.f, 5.f); | |
| 146 } | |
| 147 | |
| 148 TEST_F(PictureLayerTilingSetTestWithResources, ManyTilings_NotEqual) { | |
| 149 runTest(10, 1.f, 1.f, 4.5f, 5.f); | |
| 150 } | |
| 151 | |
| 152 } // namespace | |
| 153 } // namespace cc | |
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