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