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/mock_quad_culler.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() : host_impl_(&proxy_, &shared_bitmap_manager_) {}
  24
  25   scoped_ptr<TiledLayerImpl> CreateLayerNoTiles(
  26       const gfx::Size& tile_size,
  27       const gfx::Size& layer_size,
  28       LayerTilingData::BorderTexelOption border_texels) {
  29     scoped_ptr<TiledLayerImpl> layer =
  30         TiledLayerImpl::Create(host_impl_.active_tree(), 1);
  31     scoped_ptr<LayerTilingData> tiler =
  32         LayerTilingData::Create(tile_size, border_texels);
  33     tiler->SetTilingRect(gfx::Rect(layer_size));
  34     layer->SetTilingData(*tiler);
  35     layer->set_skips_draw(false);
  36     layer->draw_properties().visible_content_rect =
  37         gfx::Rect(layer_size);
  38     layer->draw_properties().opacity = 1;
  39     layer->SetBounds(layer_size);
  40     layer->SetContentBounds(layer_size);
  41     layer->CreateRenderSurface();
  42     layer->draw_properties().render_target = layer.get();
  43     return layer.Pass();
  44   }
  45
  46   // Create a default tiled layer with textures for all tiles and a default
  47   // visibility of the entire layer size.
  48   scoped_ptr<TiledLayerImpl> CreateLayer(
  49       const gfx::Size& tile_size,
  50       const gfx::Size& layer_size,
  51       LayerTilingData::BorderTexelOption border_texels) {
  52     scoped_ptr<TiledLayerImpl> layer =
  53         CreateLayerNoTiles(tile_size, layer_size, border_texels);
  54
  55     ResourceProvider::ResourceId resource_id = 1;
  56     for (int i = 0; i < layer->TilingForTesting()->num_tiles_x(); ++i) {
  57       for (int j = 0; j < layer->TilingForTesting()->num_tiles_y(); ++j) {
  58         gfx::Rect opaque_rect(
  59             layer->TilingForTesting()->tile_bounds(i, j).origin(),
  60             gfx::Size(1, 1));
  61         layer->PushTileProperties(i, j, resource_id++, opaque_rect, false);
  62       }
  63     }
  64
  65     return layer.Pass();
  66   }
  67
  68   void GetQuads(RenderPass* render_pass,
  69                 const gfx::Size& tile_size,
  70                 const gfx::Size& layer_size,
  71                 LayerTilingData::BorderTexelOption border_texel_option,
  72                 const gfx::Rect& visible_content_rect) {
  73     scoped_ptr<TiledLayerImpl> layer =
  74         CreateLayer(tile_size, layer_size, border_texel_option);
  75     layer->draw_properties().visible_content_rect = visible_content_rect;
  76     layer->SetBounds(layer_size);
  77
  78     MockQuadCuller quad_culler(render_pass);
  79     AppendQuadsData data;
  80     layer->AppendQuads(&quad_culler, &data);
  81   }
  82
  83  protected:
  84   FakeImplProxy proxy_;
  85   TestSharedBitmapManager shared_bitmap_manager_;
  86   FakeLayerTreeHostImpl host_impl_;
  87 };
  88
  89 TEST_F(TiledLayerImplTest, EmptyQuadList) {
  90   gfx::Size tile_size(90, 90);
  91   int num_tiles_x = 8;
  92   int num_tiles_y = 4;
  93   gfx::Size layer_size(tile_size.width() * num_tiles_x,
  94                        tile_size.height() * num_tiles_y);
  95
  96   // Verify default layer does creates quads
  97   {
  98     scoped_ptr<TiledLayerImpl> layer =
  99         CreateLayer(tile_size, layer_size, LayerTilingData::NO_BORDER_TEXELS);
 100     MockQuadCuller quad_culler;
 101     AppendQuadsData data;
 102     EXPECT_TRUE(layer->WillDraw(DRAW_MODE_HARDWARE, NULL));
 103     layer->AppendQuads(&quad_culler, &data);
 104     layer->DidDraw(NULL);
 105     unsigned num_tiles = num_tiles_x * num_tiles_y;
 106     EXPECT_EQ(quad_culler.quad_list().size(), num_tiles);
 107   }
 108
 109   // Layer with empty visible layer rect produces no quads
 110   {
 111     scoped_ptr<TiledLayerImpl> layer =
 112         CreateLayer(tile_size, layer_size, LayerTilingData::NO_BORDER_TEXELS);
 113     layer->draw_properties().visible_content_rect = gfx::Rect();
 114
 115     MockQuadCuller quad_culler;
 116     EXPECT_FALSE(layer->WillDraw(DRAW_MODE_HARDWARE, NULL));
 117   }
 118
 119   // Layer with non-intersecting visible layer rect produces no quads
 120   {
 121     scoped_ptr<TiledLayerImpl> layer =
 122         CreateLayer(tile_size, layer_size, LayerTilingData::NO_BORDER_TEXELS);
 123
 124     gfx::Rect outside_bounds(-100, -100, 50, 50);
 125     layer->draw_properties().visible_content_rect = outside_bounds;
 126
 127     MockQuadCuller quad_culler;
 128     AppendQuadsData data;
 129     EXPECT_TRUE(layer->WillDraw(DRAW_MODE_HARDWARE, NULL));
 130     layer->AppendQuads(&quad_culler, &data);
 131     layer->DidDraw(NULL);
 132     EXPECT_EQ(quad_culler.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     MockQuadCuller quad_culler;
 142     AppendQuadsData data;
 143     layer->AppendQuads(&quad_culler, &data);
 144     EXPECT_EQ(quad_culler.quad_list().size(), 0u);
 145   }
 146 }
 147
 148 TEST_F(TiledLayerImplTest, Checkerboarding) {
 149   gfx::Size tile_size(10, 10);
 150   int num_tiles_x = 2;
 151   int num_tiles_y = 2;
 152   gfx::Size layer_size(tile_size.width() * num_tiles_x,
 153                        tile_size.height() * num_tiles_y);
 154
 155   scoped_ptr<TiledLayerImpl> layer =
 156       CreateLayer(tile_size, layer_size, LayerTilingData::NO_BORDER_TEXELS);
 157
 158   // No checkerboarding
 159   {
 160     MockQuadCuller quad_culler;
 161     AppendQuadsData data;
 162     layer->AppendQuads(&quad_culler, &data);
 163     EXPECT_EQ(quad_culler.quad_list().size(), 4u);
 164     EXPECT_EQ(0u, data.num_missing_tiles);
 165
 166     for (size_t i = 0; i < quad_culler.quad_list().size(); ++i)
 167       EXPECT_EQ(quad_culler.quad_list()[i]->material, DrawQuad::TILED_CONTENT);
 168   }
 169
 170   for (int i = 0; i < num_tiles_x; ++i)
 171     for (int j = 0; j < num_tiles_y; ++j)
 172       layer->PushTileProperties(i, j, 0, gfx::Rect(), false);
 173
 174   // All checkerboarding
 175   {
 176     MockQuadCuller quad_culler;
 177     AppendQuadsData data;
 178     layer->AppendQuads(&quad_culler, &data);
 179     EXPECT_LT(0u, data.num_missing_tiles);
 180     EXPECT_EQ(quad_culler.quad_list().size(), 4u);
 181     for (size_t i = 0; i < quad_culler.quad_list().size(); ++i)
 182       EXPECT_NE(quad_culler.quad_list()[i]->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 (size_t i = 0; i < render_pass->quad_list.size(); ++i) {
 259     const TileDrawQuad* quad =
 260         TileDrawQuad::MaterialCast(render_pass->quad_list[i]);
 261
 262     EXPECT_NE(0u, quad->resource_id) << LayerTestCommon::quad_string << i;
 263     EXPECT_EQ(gfx::RectF(gfx::PointF(), tile_size), quad->tex_coord_rect)
 264         << LayerTestCommon::quad_string << i;
 265     EXPECT_EQ(tile_size, quad->texture_size) << LayerTestCommon::quad_string
 266                                              << i;
 267     EXPECT_EQ(gfx::Size(1, 1).ToString(), quad->opaque_rect.size().ToString())
 268         << LayerTestCommon::quad_string << i;
 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++, gfx::Rect(0, 0, 1, 1), false);
 286   layer->PushTileProperties(2, 3, resource_id++, gfx::Rect(0, 0, 1, 1), false);
 287   layer->PushTileProperties(2, 0, resource_id++, gfx::Rect(0, 0, 1, 1), 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, gfx::Rect(0, 0, 1, 1), false);
 295   layer->PushTileProperties(2, 3, empty_resource, gfx::Rect(0, 0, 1, 1), false);
 296   layer->PushTileProperties(2, 0, empty_resource, gfx::Rect(0, 0, 1, 1), 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   EXPECT_EQ(0u, layer->ContentsResourceId());
 308   EXPECT_EQ(0, layer->TilingForTesting()->num_tiles_x());
 309   EXPECT_EQ(0, layer->TilingForTesting()->num_tiles_y());
 310 }
 311
 312 TEST_F(TiledLayerImplTest, Occlusion) {
 313   gfx::Size tile_size(100, 100);
 314   gfx::Size layer_bounds(1000, 1000);
 315   gfx::Size viewport_size(1000, 1000);
 316
 317   LayerTestCommon::LayerImplTest impl;
 318
 319   TiledLayerImpl* tiled_layer = impl.AddChildToRoot<TiledLayerImpl>();
 320   tiled_layer->SetAnchorPoint(gfx::PointF());
 321   tiled_layer->SetBounds(layer_bounds);
 322   tiled_layer->SetContentBounds(layer_bounds);
 323   tiled_layer->SetDrawsContent(true);
 324   tiled_layer->set_skips_draw(false);
 325
 326   scoped_ptr<LayerTilingData> tiler =
 327       LayerTilingData::Create(tile_size, LayerTilingData::NO_BORDER_TEXELS);
 328   tiler->SetTilingRect(gfx::Rect(layer_bounds));
 329   tiled_layer->SetTilingData(*tiler);
 330
 331   ResourceProvider::ResourceId resource_id = 1;
 332   for (int i = 0; i < tiled_layer->TilingForTesting()->num_tiles_x(); ++i) {
 333     for (int j = 0; j < tiled_layer->TilingForTesting()->num_tiles_y(); ++j)
 334       tiled_layer->PushTileProperties(i, j, resource_id++, gfx::Rect(), false);
 335   }
 336
 337   impl.CalcDrawProps(viewport_size);
 338
 339   {
 340     SCOPED_TRACE("No occlusion");
 341     gfx::Rect occluded;
 342     impl.AppendQuadsWithOcclusion(tiled_layer, occluded);
 343
 344     LayerTestCommon::VerifyQuadsExactlyCoverRect(impl.quad_list(),
 345                                                  gfx::Rect(layer_bounds));
 346     EXPECT_EQ(100u, impl.quad_list().size());
 347   }
 348
 349   {
 350     SCOPED_TRACE("Full occlusion");
 351     gfx::Rect occluded(tiled_layer->visible_content_rect());
 352     impl.AppendQuadsWithOcclusion(tiled_layer, occluded);
 353
 354     LayerTestCommon::VerifyQuadsExactlyCoverRect(impl.quad_list(), gfx::Rect());
 355     EXPECT_EQ(impl.quad_list().size(), 0u);
 356   }
 357
 358   {
 359     SCOPED_TRACE("Partial occlusion");
 360     gfx::Rect occluded(150, 0, 200, 1000);
 361     impl.AppendQuadsWithOcclusion(tiled_layer, occluded);
 362
 363     size_t partially_occluded_count = 0;
 364     LayerTestCommon::VerifyQuadsCoverRectWithOcclusion(
 365         impl.quad_list(),
 366         gfx::Rect(layer_bounds),
 367         occluded,
 368         &partially_occluded_count);
 369     // The layer outputs one quad, which is partially occluded.
 370     EXPECT_EQ(100u - 10u, impl.quad_list().size());
 371     EXPECT_EQ(10u + 10u, partially_occluded_count);
 372   }
 373 }
 374
 375 }  // namespace
 376 }  // namespace cc