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