cc/layers/tiled_layer_impl_unittest.cc

   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/layers/tiled_layer_impl.h"
   6
   7 #include "cc/layers/append_quads_data.h"
   8 #include "cc/quads/tile_draw_quad.h"
   9 #include "cc/resources/layer_tiling_data.h"
  10 #include "cc/test/fake_impl_proxy.h"
  11 #include "cc/test/fake_layer_tree_host_impl.h"
  12 #include "cc/test/layer_test_common.h"
  13 #include "cc/test/test_task_graph_runner.h"
  14 #include "cc/trees/single_thread_proxy.h"
  15 #include "testing/gmock/include/gmock/gmock.h"
  16 #include "testing/gtest/include/gtest/gtest.h"
  17
  18 namespace cc {
  19 namespace {
  20
  21 class TiledLayerImplTest : public testing::Test {
  22  public:
  23   TiledLayerImplTest()
  24       : host_impl_(&proxy_, &shared_bitmap_manager_, &task_graph_runner_) {}
  25
  26   scoped_ptr<TiledLayerImpl> CreateLayerNoTiles(
  27       const gfx::Size& tile_size,
  28       const gfx::Size& layer_size,
  29       LayerTilingData::BorderTexelOption border_texels) {
  30     scoped_ptr<TiledLayerImpl> layer =
  31         TiledLayerImpl::Create(host_impl_.active_tree(), 1);
  32     scoped_ptr<LayerTilingData> tiler =
  33         LayerTilingData::Create(tile_size, border_texels);
  34     tiler->SetTilingSize(layer_size);
  35     layer->SetTilingData(*tiler);
  36     layer->set_skips_draw(false);
  37     layer->draw_properties().visible_content_rect =
  38         gfx::Rect(layer_size);
  39     layer->draw_properties().opacity = 1;
  40     layer->SetBounds(layer_size);
  41     layer->SetContentBounds(layer_size);
  42     layer->SetHasRenderSurface(true);
  43     layer->draw_properties().render_target = layer.get();
  44     return layer.Pass();
  45   }
  46
  47   // Create a default tiled layer with textures for all tiles and a default
  48   // visibility of the entire layer size.
  49   scoped_ptr<TiledLayerImpl> CreateLayer(
  50       const gfx::Size& tile_size,
  51       const gfx::Size& layer_size,
  52       LayerTilingData::BorderTexelOption border_texels) {
  53     scoped_ptr<TiledLayerImpl> layer =
  54         CreateLayerNoTiles(tile_size, layer_size, border_texels);
  55
  56     ResourceProvider::ResourceId resource_id = 1;
  57     for (int i = 0; i < layer->TilingForTesting()->num_tiles_x(); ++i) {
  58       for (int j = 0; j < layer->TilingForTesting()->num_tiles_y(); ++j)
  59         layer->PushTileProperties(i, j, resource_id++, false);
  60     }
  61
  62     return layer.Pass();
  63   }
  64
  65   void GetQuads(RenderPass* render_pass,
  66                 const gfx::Size& tile_size,
  67                 const gfx::Size& layer_size,
  68                 LayerTilingData::BorderTexelOption border_texel_option,
  69                 const gfx::Rect& visible_content_rect) {
  70     scoped_ptr<TiledLayerImpl> layer =
  71         CreateLayer(tile_size, layer_size, border_texel_option);
  72     layer->draw_properties().visible_content_rect = visible_content_rect;
  73     layer->SetBounds(layer_size);
  74
  75     AppendQuadsData data;
  76     layer->AppendQuads(render_pass, &data);
  77   }
  78
  79  protected:
  80   FakeImplProxy proxy_;
  81   TestSharedBitmapManager shared_bitmap_manager_;
  82   TestTaskGraphRunner task_graph_runner_;
  83   FakeLayerTreeHostImpl host_impl_;
  84 };
  85
  86 TEST_F(TiledLayerImplTest, EmptyQuadList) {
  87   gfx::Size tile_size(90, 90);
  88   int num_tiles_x = 8;
  89   int num_tiles_y = 4;
  90   gfx::Size layer_size(tile_size.width() * num_tiles_x,
  91                        tile_size.height() * num_tiles_y);
  92
  93   // Verify default layer does creates quads
  94   {
  95     scoped_ptr<TiledLayerImpl> layer =
  96         CreateLayer(tile_size, layer_size, LayerTilingData::NO_BORDER_TEXELS);
  97     scoped_ptr<RenderPass> render_pass = RenderPass::Create();
  98
  99     AppendQuadsData data;
 100     EXPECT_TRUE(layer->WillDraw(DRAW_MODE_HARDWARE, nullptr));
 101     layer->AppendQuads(render_pass.get(), &data);
 102     layer->DidDraw(nullptr);
 103     unsigned num_tiles = num_tiles_x * num_tiles_y;
 104     EXPECT_EQ(render_pass->quad_list.size(), num_tiles);
 105   }
 106
 107   // Layer with empty visible layer rect produces no quads
 108   {
 109     scoped_ptr<TiledLayerImpl> layer =
 110         CreateLayer(tile_size, layer_size, LayerTilingData::NO_BORDER_TEXELS);
 111     layer->draw_properties().visible_content_rect = gfx::Rect();
 112
 113     scoped_ptr<RenderPass> render_pass = RenderPass::Create();
 114
 115     EXPECT_FALSE(layer->WillDraw(DRAW_MODE_HARDWARE, nullptr));
 116   }
 117
 118   // Layer with non-intersecting visible layer rect produces no quads
 119   {
 120     scoped_ptr<TiledLayerImpl> layer =
 121         CreateLayer(tile_size, layer_size, LayerTilingData::NO_BORDER_TEXELS);
 122
 123     gfx::Rect outside_bounds(-100, -100, 50, 50);
 124     layer->draw_properties().visible_content_rect = outside_bounds;
 125
 126     scoped_ptr<RenderPass> render_pass = RenderPass::Create();
 127
 128     AppendQuadsData data;
 129     EXPECT_TRUE(layer->WillDraw(DRAW_MODE_HARDWARE, nullptr));
 130     layer->AppendQuads(render_pass.get(), &data);
 131     layer->DidDraw(nullptr);
 132     EXPECT_EQ(render_pass->quad_list.size(), 0u);
 133   }
 134
 135   // Layer with skips draw produces no quads
 136   {
 137     scoped_ptr<TiledLayerImpl> layer =
 138         CreateLayer(tile_size, layer_size, LayerTilingData::NO_BORDER_TEXELS);
 139     layer->set_skips_draw(true);
 140
 141     scoped_ptr<RenderPass> render_pass = RenderPass::Create();
 142
 143     AppendQuadsData data;
 144     layer->AppendQuads(render_pass.get(), &data);
 145     EXPECT_EQ(render_pass->quad_list.size(), 0u);
 146   }
 147 }
 148
 149 TEST_F(TiledLayerImplTest, Checkerboarding) {
 150   gfx::Size tile_size(10, 10);
 151   int num_tiles_x = 2;
 152   int num_tiles_y = 2;
 153   gfx::Size layer_size(tile_size.width() * num_tiles_x,
 154                        tile_size.height() * num_tiles_y);
 155
 156   scoped_ptr<TiledLayerImpl> layer =
 157       CreateLayer(tile_size, layer_size, LayerTilingData::NO_BORDER_TEXELS);
 158
 159   // No checkerboarding
 160   {
 161     scoped_ptr<RenderPass> render_pass = RenderPass::Create();
 162
 163     AppendQuadsData data;
 164     layer->AppendQuads(render_pass.get(), &data);
 165     EXPECT_EQ(render_pass->quad_list.size(), 4u);
 166     EXPECT_EQ(0u, data.num_missing_tiles);
 167
 168     for (const auto& quad : render_pass->quad_list)
 169       EXPECT_EQ(quad->material, DrawQuad::TILED_CONTENT);
 170   }
 171
 172   for (int i = 0; i < num_tiles_x; ++i)
 173     for (int j = 0; j < num_tiles_y; ++j)
 174       layer->PushTileProperties(i, j, 0, false);
 175
 176   // All checkerboarding
 177   {
 178     scoped_ptr<RenderPass> render_pass = RenderPass::Create();
 179
 180     AppendQuadsData data;
 181     layer->AppendQuads(render_pass.get(), &data);
 182     EXPECT_LT(0u, data.num_missing_tiles);
 183     EXPECT_EQ(render_pass->quad_list.size(), 4u);
 184     for (const auto& quad : render_pass->quad_list)
 185       EXPECT_NE(quad->material, DrawQuad::TILED_CONTENT);
 186   }
 187 }
 188
 189 // Test with both border texels and without.
 190 #define WITH_AND_WITHOUT_BORDER_TEST(text_fixture_name)                        \
 191   TEST_F(TiledLayerImplBorderTest, text_fixture_name##NoBorders) {             \
 192     text_fixture_name(LayerTilingData::NO_BORDER_TEXELS);                      \
 193   }                                                                            \
 194   TEST_F(TiledLayerImplBorderTest, text_fixture_name##HasBorders) {            \
 195     text_fixture_name(LayerTilingData::HAS_BORDER_TEXELS);                     \
 196   }
 197
 198 class TiledLayerImplBorderTest : public TiledLayerImplTest {
 199  public:
 200   void CoverageVisibleRectOnTileBoundaries(
 201       LayerTilingData::BorderTexelOption borders) {
 202     gfx::Size layer_size(1000, 1000);
 203     scoped_ptr<RenderPass> render_pass = RenderPass::Create();
 204     GetQuads(render_pass.get(),
 205              gfx::Size(100, 100),
 206              layer_size,
 207              borders,
 208              gfx::Rect(layer_size));
 209     LayerTestCommon::VerifyQuadsExactlyCoverRect(render_pass->quad_list,
 210                                                  gfx::Rect(layer_size));
 211   }
 212
 213   void CoverageVisibleRectIntersectsTiles(
 214       LayerTilingData::BorderTexelOption borders) {
 215     // This rect intersects the middle 3x3 of the 5x5 tiles.
 216     gfx::Point top_left(65, 73);
 217     gfx::Point bottom_right(182, 198);
 218     gfx::Rect visible_content_rect = gfx::BoundingRect(top_left, bottom_right);
 219
 220     gfx::Size layer_size(250, 250);
 221     scoped_ptr<RenderPass> render_pass = RenderPass::Create();
 222     GetQuads(render_pass.get(),
 223              gfx::Size(50, 50),
 224              gfx::Size(250, 250),
 225              LayerTilingData::NO_BORDER_TEXELS,
 226              visible_content_rect);
 227     LayerTestCommon::VerifyQuadsExactlyCoverRect(render_pass->quad_list,
 228                                                  visible_content_rect);
 229   }
 230
 231   void CoverageVisibleRectIntersectsBounds(
 232       LayerTilingData::BorderTexelOption borders) {
 233     gfx::Size layer_size(220, 210);
 234     gfx::Rect visible_content_rect(layer_size);
 235     scoped_ptr<RenderPass> render_pass = RenderPass::Create();
 236     GetQuads(render_pass.get(),
 237              gfx::Size(100, 100),
 238              layer_size,
 239              LayerTilingData::NO_BORDER_TEXELS,
 240              visible_content_rect);
 241     LayerTestCommon::VerifyQuadsExactlyCoverRect(render_pass->quad_list,
 242                                                  visible_content_rect);
 243   }
 244 };
 245 WITH_AND_WITHOUT_BORDER_TEST(CoverageVisibleRectOnTileBoundaries);
 246
 247 WITH_AND_WITHOUT_BORDER_TEST(CoverageVisibleRectIntersectsTiles);
 248
 249 WITH_AND_WITHOUT_BORDER_TEST(CoverageVisibleRectIntersectsBounds);
 250
 251 TEST_F(TiledLayerImplTest, TextureInfoForLayerNoBorders) {
 252   gfx::Size tile_size(50, 50);
 253   gfx::Size layer_size(250, 250);
 254   scoped_ptr<RenderPass> render_pass = RenderPass::Create();
 255   GetQuads(render_pass.get(),
 256            tile_size,
 257            layer_size,
 258            LayerTilingData::NO_BORDER_TEXELS,
 259            gfx::Rect(layer_size));
 260
 261   for (auto iter = render_pass->quad_list.cbegin();
 262        iter != render_pass->quad_list.cend();
 263        ++iter) {
 264     const TileDrawQuad* quad = TileDrawQuad::MaterialCast(*iter);
 265
 266     EXPECT_NE(0u, quad->resource_id) << LayerTestCommon::quad_string
 267                                      << iter.index();
 268     EXPECT_EQ(gfx::RectF(gfx::PointF(), tile_size), quad->tex_coord_rect)
 269         << LayerTestCommon::quad_string << iter.index();
 270     EXPECT_EQ(tile_size, quad->texture_size) << LayerTestCommon::quad_string
 271                                              << iter.index();
 272   }
 273 }
 274
 275 TEST_F(TiledLayerImplTest, GPUMemoryUsage) {
 276   gfx::Size tile_size(20, 30);
 277   int num_tiles_x = 12;
 278   int num_tiles_y = 32;
 279   gfx::Size layer_size(tile_size.width() * num_tiles_x,
 280                        tile_size.height() * num_tiles_y);
 281
 282   scoped_ptr<TiledLayerImpl> layer = CreateLayerNoTiles(
 283       tile_size, layer_size, LayerTilingData::NO_BORDER_TEXELS);
 284
 285   EXPECT_EQ(layer->GPUMemoryUsageInBytes(), 0u);
 286
 287   ResourceProvider::ResourceId resource_id = 1;
 288   layer->PushTileProperties(0, 1, resource_id++, false);
 289   layer->PushTileProperties(2, 3, resource_id++, false);
 290   layer->PushTileProperties(2, 0, resource_id++, false);
 291
 292   EXPECT_EQ(
 293       layer->GPUMemoryUsageInBytes(),
 294       static_cast<size_t>(3 * 4 * tile_size.width() * tile_size.height()));
 295
 296   ResourceProvider::ResourceId empty_resource(0);
 297   layer->PushTileProperties(0, 1, empty_resource, false);
 298   layer->PushTileProperties(2, 3, empty_resource, false);
 299   layer->PushTileProperties(2, 0, empty_resource, false);
 300
 301   EXPECT_EQ(layer->GPUMemoryUsageInBytes(), 0u);
 302 }
 303
 304 TEST_F(TiledLayerImplTest, EmptyMask) {
 305   gfx::Size tile_size(20, 20);
 306   gfx::Size layer_size(0, 0);
 307   scoped_ptr<TiledLayerImpl> layer =
 308       CreateLayer(tile_size, layer_size, LayerTilingData::NO_BORDER_TEXELS);
 309
 310   ResourceProvider::ResourceId mask_resource_id;
 311   gfx::Size mask_texture_size;
 312   layer->GetContentsResourceId(&mask_resource_id, &mask_texture_size);
 313   EXPECT_EQ(0u, mask_resource_id);
 314   EXPECT_EQ(0, layer->TilingForTesting()->num_tiles_x());
 315   EXPECT_EQ(0, layer->TilingForTesting()->num_tiles_y());
 316 }
 317
 318 TEST_F(TiledLayerImplTest, Occlusion) {
 319   gfx::Size tile_size(100, 100);
 320   gfx::Size layer_bounds(1000, 1000);
 321   gfx::Size viewport_size(1000, 1000);
 322
 323   LayerTestCommon::LayerImplTest impl;
 324
 325   TiledLayerImpl* tiled_layer = impl.AddChildToRoot<TiledLayerImpl>();
 326   tiled_layer->SetBounds(layer_bounds);
 327   tiled_layer->SetContentBounds(layer_bounds);
 328   tiled_layer->SetDrawsContent(true);
 329   tiled_layer->set_skips_draw(false);
 330
 331   scoped_ptr<LayerTilingData> tiler =
 332       LayerTilingData::Create(tile_size, LayerTilingData::NO_BORDER_TEXELS);
 333   tiler->SetTilingSize(layer_bounds);
 334   tiled_layer->SetTilingData(*tiler);
 335
 336   ResourceProvider::ResourceId resource_id = 1;
 337   for (int i = 0; i < tiled_layer->TilingForTesting()->num_tiles_x(); ++i) {
 338     for (int j = 0; j < tiled_layer->TilingForTesting()->num_tiles_y(); ++j)
 339       tiled_layer->PushTileProperties(i, j, resource_id++, false);
 340   }
 341
 342   impl.CalcDrawProps(viewport_size);
 343
 344   {
 345     SCOPED_TRACE("No occlusion");
 346     gfx::Rect occluded;
 347     impl.AppendQuadsWithOcclusion(tiled_layer, occluded);
 348
 349     LayerTestCommon::VerifyQuadsExactlyCoverRect(impl.quad_list(),
 350                                                  gfx::Rect(layer_bounds));
 351     EXPECT_EQ(100u, impl.quad_list().size());
 352   }
 353
 354   {
 355     SCOPED_TRACE("Full occlusion");
 356     gfx::Rect occluded(tiled_layer->visible_content_rect());
 357     impl.AppendQuadsWithOcclusion(tiled_layer, occluded);
 358
 359     LayerTestCommon::VerifyQuadsExactlyCoverRect(impl.quad_list(), gfx::Rect());
 360     EXPECT_EQ(impl.quad_list().size(), 0u);
 361   }
 362
 363   {
 364     SCOPED_TRACE("Partial occlusion");
 365     gfx::Rect occluded(150, 0, 200, 1000);
 366     impl.AppendQuadsWithOcclusion(tiled_layer, occluded);
 367
 368     size_t partially_occluded_count = 0;
 369     LayerTestCommon::VerifyQuadsAreOccluded(
 370         impl.quad_list(), occluded, &partially_occluded_count);
 371     // The layer outputs one quad, which is partially occluded.
 372     EXPECT_EQ(100u - 10u, impl.quad_list().size());
 373     EXPECT_EQ(10u + 10u, partially_occluded_count);
 374   }
 375 }
 376
 377 }  // namespace
 378 }  // namespace cc