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/fake_output_surface.h"
  13 #include "cc/test/layer_test_common.h"
  14 #include "cc/test/test_task_graph_runner.h"
  15 #include "cc/trees/single_thread_proxy.h"
  16 #include "testing/gmock/include/gmock/gmock.h"
  17 #include "testing/gtest/include/gtest/gtest.h"
  18
  19 namespace cc {
  20 namespace {
  21
  22 class TiledLayerImplTest : public testing::Test {
  23  public:
  24   TiledLayerImplTest()
  25       : host_impl_(&proxy_, &shared_bitmap_manager_, &task_graph_runner_) {
  26     host_impl_.InitializeRenderer(FakeOutputSurface::Create3d());
  27   }
  28
  29   scoped_ptr<TiledLayerImpl> CreateLayerNoTiles(
  30       const gfx::Size& tile_size,
  31       const gfx::Size& layer_size,
  32       LayerTilingData::BorderTexelOption border_texels) {
  33     scoped_ptr<TiledLayerImpl> layer =
  34         TiledLayerImpl::Create(host_impl_.active_tree(), 1);
  35     scoped_ptr<LayerTilingData> tiler =
  36         LayerTilingData::Create(tile_size, border_texels);
  37     tiler->SetTilingSize(layer_size);
  38     layer->SetTilingData(*tiler);
  39     layer->set_skips_draw(false);
  40     layer->draw_properties().visible_content_rect =
  41         gfx::Rect(layer_size);
  42     layer->draw_properties().opacity = 1;
  43     layer->SetBounds(layer_size);
  44     layer->SetContentBounds(layer_size);
  45     layer->SetHasRenderSurface(true);
  46     layer->draw_properties().render_target = layer.get();
  47     return layer.Pass();
  48   }
  49
  50   // Create a default tiled layer with textures for all tiles and a default
  51   // visibility of the entire layer size.
  52   scoped_ptr<TiledLayerImpl> CreateLayer(
  53       const gfx::Size& tile_size,
  54       const gfx::Size& layer_size,
  55       LayerTilingData::BorderTexelOption border_texels) {
  56     scoped_ptr<TiledLayerImpl> layer =
  57         CreateLayerNoTiles(tile_size, layer_size, border_texels);
  58
  59     for (int i = 0; i < layer->TilingForTesting()->num_tiles_x(); ++i) {
  60       for (int j = 0; j < layer->TilingForTesting()->num_tiles_y(); ++j) {
  61         ResourceProvider::ResourceId resource_id =
  62             host_impl_.resource_provider()->CreateResource(
  63                 gfx::Size(1, 1), GL_CLAMP_TO_EDGE,
  64                 ResourceProvider::TEXTURE_HINT_IMMUTABLE, RGBA_8888);
  65         layer->PushTileProperties(i, j, resource_id, false);
  66       }
  67     }
  68
  69     return layer.Pass();
  70   }
  71
  72   void GetQuads(RenderPass* render_pass,
  73                 const gfx::Size& tile_size,
  74                 const gfx::Size& layer_size,
  75                 LayerTilingData::BorderTexelOption border_texel_option,
  76                 const gfx::Rect& visible_content_rect) {
  77     scoped_ptr<TiledLayerImpl> layer =
  78         CreateLayer(tile_size, layer_size, border_texel_option);
  79     layer->draw_properties().visible_content_rect = visible_content_rect;
  80     layer->SetBounds(layer_size);
  81
  82     AppendQuadsData data;
  83     layer->AppendQuads(render_pass, &data);
  84   }
  85
  86  protected:
  87   FakeImplProxy proxy_;
  88   TestSharedBitmapManager shared_bitmap_manager_;
  89   TestTaskGraphRunner task_graph_runner_;
  90   FakeLayerTreeHostImpl host_impl_;
  91 };
  92
  93 TEST_F(TiledLayerImplTest, EmptyQuadList) {
  94   gfx::Size tile_size(90, 90);
  95   int num_tiles_x = 8;
  96   int num_tiles_y = 4;
  97   gfx::Size layer_size(tile_size.width() * num_tiles_x,
  98                        tile_size.height() * num_tiles_y);
  99
 100   // Verify default layer does creates quads
 101   {
 102     scoped_ptr<TiledLayerImpl> layer =
 103         CreateLayer(tile_size, layer_size, LayerTilingData::NO_BORDER_TEXELS);
 104     scoped_ptr<RenderPass> render_pass = RenderPass::Create();
 105
 106     AppendQuadsData data;
 107     EXPECT_TRUE(layer->WillDraw(DRAW_MODE_HARDWARE, nullptr));
 108     layer->AppendQuads(render_pass.get(), &data);
 109     layer->DidDraw(nullptr);
 110     unsigned num_tiles = num_tiles_x * num_tiles_y;
 111     EXPECT_EQ(render_pass->quad_list.size(), num_tiles);
 112   }
 113
 114   // Layer with empty visible layer rect produces no quads
 115   {
 116     scoped_ptr<TiledLayerImpl> layer =
 117         CreateLayer(tile_size, layer_size, LayerTilingData::NO_BORDER_TEXELS);
 118     layer->draw_properties().visible_content_rect = gfx::Rect();
 119
 120     scoped_ptr<RenderPass> render_pass = RenderPass::Create();
 121
 122     EXPECT_FALSE(layer->WillDraw(DRAW_MODE_HARDWARE, nullptr));
 123   }
 124
 125   // Layer with non-intersecting visible layer rect produces no quads
 126   {
 127     scoped_ptr<TiledLayerImpl> layer =
 128         CreateLayer(tile_size, layer_size, LayerTilingData::NO_BORDER_TEXELS);
 129
 130     gfx::Rect outside_bounds(-100, -100, 50, 50);
 131     layer->draw_properties().visible_content_rect = outside_bounds;
 132
 133     scoped_ptr<RenderPass> render_pass = RenderPass::Create();
 134
 135     AppendQuadsData data;
 136     EXPECT_TRUE(layer->WillDraw(DRAW_MODE_HARDWARE, nullptr));
 137     layer->AppendQuads(render_pass.get(), &data);
 138     layer->DidDraw(nullptr);
 139     EXPECT_EQ(render_pass->quad_list.size(), 0u);
 140   }
 141
 142   // Layer with skips draw produces no quads
 143   {
 144     scoped_ptr<TiledLayerImpl> layer =
 145         CreateLayer(tile_size, layer_size, LayerTilingData::NO_BORDER_TEXELS);
 146     layer->set_skips_draw(true);
 147
 148     scoped_ptr<RenderPass> render_pass = RenderPass::Create();
 149
 150     AppendQuadsData data;
 151     layer->AppendQuads(render_pass.get(), &data);
 152     EXPECT_EQ(render_pass->quad_list.size(), 0u);
 153   }
 154 }
 155
 156 TEST_F(TiledLayerImplTest, Checkerboarding) {
 157   gfx::Size tile_size(10, 10);
 158   int num_tiles_x = 2;
 159   int num_tiles_y = 2;
 160   gfx::Size layer_size(tile_size.width() * num_tiles_x,
 161                        tile_size.height() * num_tiles_y);
 162
 163   scoped_ptr<TiledLayerImpl> layer =
 164       CreateLayer(tile_size, layer_size, LayerTilingData::NO_BORDER_TEXELS);
 165
 166   // No checkerboarding
 167   {
 168     scoped_ptr<RenderPass> render_pass = RenderPass::Create();
 169
 170     AppendQuadsData data;
 171     layer->AppendQuads(render_pass.get(), &data);
 172     EXPECT_EQ(render_pass->quad_list.size(), 4u);
 173     EXPECT_EQ(0u, data.num_missing_tiles);
 174
 175     for (const auto& quad : render_pass->quad_list)
 176       EXPECT_EQ(quad->material, DrawQuad::TILED_CONTENT);
 177   }
 178
 179   for (int i = 0; i < num_tiles_x; ++i)
 180     for (int j = 0; j < num_tiles_y; ++j)
 181       layer->PushTileProperties(i, j, 0, false);
 182
 183   // All checkerboarding
 184   {
 185     scoped_ptr<RenderPass> render_pass = RenderPass::Create();
 186
 187     AppendQuadsData data;
 188     layer->AppendQuads(render_pass.get(), &data);
 189     EXPECT_LT(0u, data.num_missing_tiles);
 190     EXPECT_EQ(render_pass->quad_list.size(), 4u);
 191     for (const auto& quad : render_pass->quad_list)
 192       EXPECT_NE(quad->material, DrawQuad::TILED_CONTENT);
 193   }
 194 }
 195
 196 // Test with both border texels and without.
 197 #define WITH_AND_WITHOUT_BORDER_TEST(text_fixture_name)                        \
 198   TEST_F(TiledLayerImplBorderTest, text_fixture_name##NoBorders) {             \
 199     text_fixture_name(LayerTilingData::NO_BORDER_TEXELS);                      \
 200   }                                                                            \
 201   TEST_F(TiledLayerImplBorderTest, text_fixture_name##HasBorders) {            \
 202     text_fixture_name(LayerTilingData::HAS_BORDER_TEXELS);                     \
 203   }
 204
 205 class TiledLayerImplBorderTest : public TiledLayerImplTest {
 206  public:
 207   void CoverageVisibleRectOnTileBoundaries(
 208       LayerTilingData::BorderTexelOption borders) {
 209     gfx::Size layer_size(1000, 1000);
 210     scoped_ptr<RenderPass> render_pass = RenderPass::Create();
 211     GetQuads(render_pass.get(),
 212              gfx::Size(100, 100),
 213              layer_size,
 214              borders,
 215              gfx::Rect(layer_size));
 216     LayerTestCommon::VerifyQuadsExactlyCoverRect(render_pass->quad_list,
 217                                                  gfx::Rect(layer_size));
 218   }
 219
 220   void CoverageVisibleRectIntersectsTiles(
 221       LayerTilingData::BorderTexelOption borders) {
 222     // This rect intersects the middle 3x3 of the 5x5 tiles.
 223     gfx::Point top_left(65, 73);
 224     gfx::Point bottom_right(182, 198);
 225     gfx::Rect visible_content_rect = gfx::BoundingRect(top_left, bottom_right);
 226
 227     gfx::Size layer_size(250, 250);
 228     scoped_ptr<RenderPass> render_pass = RenderPass::Create();
 229     GetQuads(render_pass.get(),
 230              gfx::Size(50, 50),
 231              gfx::Size(250, 250),
 232              LayerTilingData::NO_BORDER_TEXELS,
 233              visible_content_rect);
 234     LayerTestCommon::VerifyQuadsExactlyCoverRect(render_pass->quad_list,
 235                                                  visible_content_rect);
 236   }
 237
 238   void CoverageVisibleRectIntersectsBounds(
 239       LayerTilingData::BorderTexelOption borders) {
 240     gfx::Size layer_size(220, 210);
 241     gfx::Rect visible_content_rect(layer_size);
 242     scoped_ptr<RenderPass> render_pass = RenderPass::Create();
 243     GetQuads(render_pass.get(),
 244              gfx::Size(100, 100),
 245              layer_size,
 246              LayerTilingData::NO_BORDER_TEXELS,
 247              visible_content_rect);
 248     LayerTestCommon::VerifyQuadsExactlyCoverRect(render_pass->quad_list,
 249                                                  visible_content_rect);
 250   }
 251 };
 252 WITH_AND_WITHOUT_BORDER_TEST(CoverageVisibleRectOnTileBoundaries);
 253
 254 WITH_AND_WITHOUT_BORDER_TEST(CoverageVisibleRectIntersectsTiles);
 255
 256 WITH_AND_WITHOUT_BORDER_TEST(CoverageVisibleRectIntersectsBounds);
 257
 258 TEST_F(TiledLayerImplTest, TextureInfoForLayerNoBorders) {
 259   gfx::Size tile_size(50, 50);
 260   gfx::Size layer_size(250, 250);
 261   scoped_ptr<RenderPass> render_pass = RenderPass::Create();
 262   GetQuads(render_pass.get(),
 263            tile_size,
 264            layer_size,
 265            LayerTilingData::NO_BORDER_TEXELS,
 266            gfx::Rect(layer_size));
 267
 268   for (auto iter = render_pass->quad_list.cbegin();
 269        iter != render_pass->quad_list.cend();
 270        ++iter) {
 271     const TileDrawQuad* quad = TileDrawQuad::MaterialCast(*iter);
 272
 273     EXPECT_NE(0u, quad->resource_id) << LayerTestCommon::quad_string
 274                                      << iter.index();
 275     EXPECT_EQ(gfx::RectF(gfx::PointF(), tile_size), quad->tex_coord_rect)
 276         << LayerTestCommon::quad_string << iter.index();
 277     EXPECT_EQ(tile_size, quad->texture_size) << LayerTestCommon::quad_string
 278                                              << iter.index();
 279   }
 280 }
 281
 282 TEST_F(TiledLayerImplTest, GPUMemoryUsage) {
 283   gfx::Size tile_size(20, 30);
 284   int num_tiles_x = 12;
 285   int num_tiles_y = 32;
 286   gfx::Size layer_size(tile_size.width() * num_tiles_x,
 287                        tile_size.height() * num_tiles_y);
 288
 289   scoped_ptr<TiledLayerImpl> layer = CreateLayerNoTiles(
 290       tile_size, layer_size, LayerTilingData::NO_BORDER_TEXELS);
 291
 292   EXPECT_EQ(layer->GPUMemoryUsageInBytes(), 0u);
 293
 294   ResourceProvider::ResourceId resource_id = 1;
 295   layer->PushTileProperties(0, 1, resource_id++, false);
 296   layer->PushTileProperties(2, 3, resource_id++, false);
 297   layer->PushTileProperties(2, 0, resource_id++, false);
 298
 299   EXPECT_EQ(
 300       layer->GPUMemoryUsageInBytes(),
 301       static_cast<size_t>(3 * 4 * tile_size.width() * tile_size.height()));
 302
 303   ResourceProvider::ResourceId empty_resource(0);
 304   layer->PushTileProperties(0, 1, empty_resource, false);
 305   layer->PushTileProperties(2, 3, empty_resource, false);
 306   layer->PushTileProperties(2, 0, empty_resource, false);
 307
 308   EXPECT_EQ(layer->GPUMemoryUsageInBytes(), 0u);
 309 }
 310
 311 TEST_F(TiledLayerImplTest, EmptyMask) {
 312   gfx::Size tile_size(20, 20);
 313   gfx::Size layer_size(0, 0);
 314   scoped_ptr<TiledLayerImpl> layer =
 315       CreateLayer(tile_size, layer_size, LayerTilingData::NO_BORDER_TEXELS);
 316
 317   ResourceProvider::ResourceId mask_resource_id;
 318   gfx::Size mask_texture_size;
 319   layer->GetContentsResourceId(&mask_resource_id, &mask_texture_size);
 320   EXPECT_EQ(0u, mask_resource_id);
 321   EXPECT_EQ(0, layer->TilingForTesting()->num_tiles_x());
 322   EXPECT_EQ(0, layer->TilingForTesting()->num_tiles_y());
 323 }
 324
 325 TEST_F(TiledLayerImplTest, Occlusion) {
 326   gfx::Size tile_size(100, 100);
 327   gfx::Size layer_bounds(1000, 1000);
 328   gfx::Size viewport_size(1000, 1000);
 329
 330   LayerTestCommon::LayerImplTest impl;
 331
 332   TiledLayerImpl* tiled_layer = impl.AddChildToRoot<TiledLayerImpl>();
 333   tiled_layer->SetBounds(layer_bounds);
 334   tiled_layer->SetContentBounds(layer_bounds);
 335   tiled_layer->SetDrawsContent(true);
 336   tiled_layer->set_skips_draw(false);
 337
 338   scoped_ptr<LayerTilingData> tiler =
 339       LayerTilingData::Create(tile_size, LayerTilingData::NO_BORDER_TEXELS);
 340   tiler->SetTilingSize(layer_bounds);
 341   tiled_layer->SetTilingData(*tiler);
 342
 343   for (int i = 0; i < tiled_layer->TilingForTesting()->num_tiles_x(); ++i) {
 344     for (int j = 0; j < tiled_layer->TilingForTesting()->num_tiles_y(); ++j) {
 345       ResourceProvider::ResourceId resource_id =
 346           impl.resource_provider()->CreateResource(
 347               gfx::Size(1, 1), GL_CLAMP_TO_EDGE,
 348               ResourceProvider::TEXTURE_HINT_IMMUTABLE, RGBA_8888);
 349       tiled_layer->PushTileProperties(i, j, resource_id, false);
 350     }
 351   }
 352
 353   impl.CalcDrawProps(viewport_size);
 354
 355   {
 356     SCOPED_TRACE("No occlusion");
 357     gfx::Rect occluded;
 358     impl.AppendQuadsWithOcclusion(tiled_layer, occluded);
 359
 360     LayerTestCommon::VerifyQuadsExactlyCoverRect(impl.quad_list(),
 361                                                  gfx::Rect(layer_bounds));
 362     EXPECT_EQ(100u, impl.quad_list().size());
 363   }
 364
 365   {
 366     SCOPED_TRACE("Full occlusion");
 367     gfx::Rect occluded(tiled_layer->visible_content_rect());
 368     impl.AppendQuadsWithOcclusion(tiled_layer, occluded);
 369
 370     LayerTestCommon::VerifyQuadsExactlyCoverRect(impl.quad_list(), gfx::Rect());
 371     EXPECT_EQ(impl.quad_list().size(), 0u);
 372   }
 373
 374   {
 375     SCOPED_TRACE("Partial occlusion");
 376     gfx::Rect occluded(150, 0, 200, 1000);
 377     impl.AppendQuadsWithOcclusion(tiled_layer, occluded);
 378
 379     size_t partially_occluded_count = 0;
 380     LayerTestCommon::VerifyQuadsAreOccluded(
 381         impl.quad_list(), occluded, &partially_occluded_count);
 382     // The layer outputs one quad, which is partially occluded.
 383     EXPECT_EQ(100u - 10u, impl.quad_list().size());
 384     EXPECT_EQ(10u + 10u, partially_occluded_count);
 385   }
 386 }
 387
 388 }  // namespace
 389 }  // namespace cc