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