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/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_) {}
  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->SetBounds(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     layer->SetDrawsContent(true);
  56
  57     ResourceProvider::ResourceId resource_id = 1;
  58     for (int i = 0; i < layer->TilingForTesting()->num_tiles_x(); ++i) {
  59       for (int j = 0; j < layer->TilingForTesting()->num_tiles_y(); ++j) {
  60         gfx::Rect opaque_rect(
  61             layer->TilingForTesting()->tile_bounds(i, j).origin(),
  62             gfx::Size(1, 1));
  63         layer->PushTileProperties(i, j, resource_id++, opaque_rect, false);
  64       }
  65     }
  66
  67     return layer.Pass();
  68   }
  69
  70   void GetQuads(QuadList* quads,
  71                 SharedQuadStateList* shared_states,
  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     MockQuadCuller quad_culler(quads, shared_states);
  82     AppendQuadsData data;
  83     layer->AppendQuads(&quad_culler, &data);
  84   }
  85
  86  protected:
  87   FakeImplProxy proxy_;
  88   FakeLayerTreeHostImpl host_impl_;
  89 };
  90
  91 TEST_F(TiledLayerImplTest, EmptyQuadList) {
  92   gfx::Size tile_size(90, 90);
  93   int num_tiles_x = 8;
  94   int num_tiles_y = 4;
  95   gfx::Size layer_size(tile_size.width() * num_tiles_x,
  96                        tile_size.height() * num_tiles_y);
  97
  98   // Verify default layer does creates quads
  99   {
 100     scoped_ptr<TiledLayerImpl> layer =
 101         CreateLayer(tile_size, layer_size, LayerTilingData::NO_BORDER_TEXELS);
 102     MockQuadCuller quad_culler;
 103     AppendQuadsData data;
 104     EXPECT_TRUE(layer->WillDraw(DRAW_MODE_HARDWARE, NULL));
 105     layer->AppendQuads(&quad_culler, &data);
 106     layer->DidDraw(NULL);
 107     unsigned num_tiles = num_tiles_x * num_tiles_y;
 108     EXPECT_EQ(quad_culler.quad_list().size(), num_tiles);
 109   }
 110
 111   // Layer with empty visible layer rect produces no quads
 112   {
 113     scoped_ptr<TiledLayerImpl> layer =
 114         CreateLayer(tile_size, layer_size, LayerTilingData::NO_BORDER_TEXELS);
 115     layer->draw_properties().visible_content_rect = gfx::Rect();
 116
 117     MockQuadCuller quad_culler;
 118     EXPECT_FALSE(layer->WillDraw(DRAW_MODE_HARDWARE, NULL));
 119   }
 120
 121   // Layer with non-intersecting visible layer rect produces no quads
 122   {
 123     scoped_ptr<TiledLayerImpl> layer =
 124         CreateLayer(tile_size, layer_size, LayerTilingData::NO_BORDER_TEXELS);
 125
 126     gfx::Rect outside_bounds(-100, -100, 50, 50);
 127     layer->draw_properties().visible_content_rect = outside_bounds;
 128
 129     MockQuadCuller quad_culler;
 130     AppendQuadsData data;
 131     EXPECT_TRUE(layer->WillDraw(DRAW_MODE_HARDWARE, NULL));
 132     layer->AppendQuads(&quad_culler, &data);
 133     layer->DidDraw(NULL);
 134     EXPECT_EQ(quad_culler.quad_list().size(), 0u);
 135   }
 136
 137   // Layer with skips draw produces no quads
 138   {
 139     scoped_ptr<TiledLayerImpl> layer =
 140         CreateLayer(tile_size, layer_size, LayerTilingData::NO_BORDER_TEXELS);
 141     layer->set_skips_draw(true);
 142
 143     MockQuadCuller quad_culler;
 144     AppendQuadsData data;
 145     layer->AppendQuads(&quad_culler, &data);
 146     EXPECT_EQ(quad_culler.quad_list().size(), 0u);
 147   }
 148 }
 149
 150 TEST_F(TiledLayerImplTest, Checkerboarding) {
 151   gfx::Size tile_size(10, 10);
 152   int num_tiles_x = 2;
 153   int num_tiles_y = 2;
 154   gfx::Size layer_size(tile_size.width() * num_tiles_x,
 155                        tile_size.height() * num_tiles_y);
 156
 157   scoped_ptr<TiledLayerImpl> layer =
 158       CreateLayer(tile_size, layer_size, LayerTilingData::NO_BORDER_TEXELS);
 159
 160   // No checkerboarding
 161   {
 162     MockQuadCuller quad_culler;
 163     AppendQuadsData data;
 164     layer->AppendQuads(&quad_culler, &data);
 165     EXPECT_EQ(quad_culler.quad_list().size(), 4u);
 166     EXPECT_EQ(0u, data.num_missing_tiles);
 167
 168     for (size_t i = 0; i < quad_culler.quad_list().size(); ++i)
 169       EXPECT_EQ(quad_culler.quad_list()[i]->material, DrawQuad::TILED_CONTENT);
 170   }
 171
 172   for (int i = 0; i < num_tiles_x; ++i)
 173     for (int j = 0; j < num_tiles_y; ++j)
 174       layer->PushTileProperties(i, j, 0, gfx::Rect(), false);
 175
 176   // All checkerboarding
 177   {
 178     MockQuadCuller quad_culler;
 179     AppendQuadsData data;
 180     layer->AppendQuads(&quad_culler, &data);
 181     EXPECT_LT(0u, data.num_missing_tiles);
 182     EXPECT_EQ(quad_culler.quad_list().size(), 4u);
 183     for (size_t i = 0; i < quad_culler.quad_list().size(); ++i)
 184       EXPECT_NE(quad_culler.quad_list()[i]->material, DrawQuad::TILED_CONTENT);
 185   }
 186 }
 187
 188 // Test with both border texels and without.
 189 #define WITH_AND_WITHOUT_BORDER_TEST(text_fixture_name)                        \
 190   TEST_F(TiledLayerImplBorderTest, text_fixture_name##NoBorders) {             \
 191     text_fixture_name(LayerTilingData::NO_BORDER_TEXELS);                      \
 192   }                                                                            \
 193   TEST_F(TiledLayerImplBorderTest, text_fixture_name##HasBorders) {            \
 194     text_fixture_name(LayerTilingData::HAS_BORDER_TEXELS);                     \
 195   }
 196
 197 class TiledLayerImplBorderTest : public TiledLayerImplTest {
 198  public:
 199   void CoverageVisibleRectOnTileBoundaries(
 200       LayerTilingData::BorderTexelOption borders) {
 201     gfx::Size layer_size(1000, 1000);
 202     QuadList quads;
 203     SharedQuadStateList shared_states;
 204     GetQuads(&quads,
 205              &shared_states,
 206              gfx::Size(100, 100),
 207              layer_size,
 208              borders,
 209              gfx::Rect(layer_size));
 210     LayerTestCommon::VerifyQuadsExactlyCoverRect(quads, gfx::Rect(layer_size));
 211   }
 212
 213   void CoverageVisibleRectIntersectsTiles(
 214       LayerTilingData::BorderTexelOption borders) {
 215     // This rect intersects the middle 3x3 of the 5x5 tiles.
 216     gfx::Point top_left(65, 73);
 217     gfx::Point bottom_right(182, 198);
 218     gfx::Rect visible_content_rect = gfx::BoundingRect(top_left, bottom_right);
 219
 220     gfx::Size layer_size(250, 250);
 221     QuadList quads;
 222     SharedQuadStateList shared_states;
 223     GetQuads(&quads,
 224              &shared_states,
 225              gfx::Size(50, 50),
 226              gfx::Size(250, 250),
 227              LayerTilingData::NO_BORDER_TEXELS,
 228              visible_content_rect);
 229     LayerTestCommon::VerifyQuadsExactlyCoverRect(quads, visible_content_rect);
 230   }
 231
 232   void CoverageVisibleRectIntersectsBounds(
 233       LayerTilingData::BorderTexelOption borders) {
 234     gfx::Size layer_size(220, 210);
 235     gfx::Rect visible_content_rect(layer_size);
 236     QuadList quads;
 237     SharedQuadStateList shared_states;
 238     GetQuads(&quads,
 239              &shared_states,
 240              gfx::Size(100, 100),
 241              layer_size,
 242              LayerTilingData::NO_BORDER_TEXELS,
 243              visible_content_rect);
 244     LayerTestCommon::VerifyQuadsExactlyCoverRect(quads, visible_content_rect);
 245   }
 246 };
 247 WITH_AND_WITHOUT_BORDER_TEST(CoverageVisibleRectOnTileBoundaries);
 248
 249 WITH_AND_WITHOUT_BORDER_TEST(CoverageVisibleRectIntersectsTiles);
 250
 251 WITH_AND_WITHOUT_BORDER_TEST(CoverageVisibleRectIntersectsBounds);
 252
 253 TEST_F(TiledLayerImplTest, TextureInfoForLayerNoBorders) {
 254   gfx::Size tile_size(50, 50);
 255   gfx::Size layer_size(250, 250);
 256   QuadList quads;
 257   SharedQuadStateList shared_states;
 258   GetQuads(&quads,
 259            &shared_states,
 260            tile_size,
 261            layer_size,
 262            LayerTilingData::NO_BORDER_TEXELS,
 263            gfx::Rect(layer_size));
 264
 265   for (size_t i = 0; i < quads.size(); ++i) {
 266     const TileDrawQuad* quad = TileDrawQuad::MaterialCast(quads[i]);
 267
 268     EXPECT_NE(0u, quad->resource_id) << LayerTestCommon::quad_string << i;
 269     EXPECT_EQ(gfx::RectF(gfx::PointF(), tile_size), quad->tex_coord_rect)
 270         << LayerTestCommon::quad_string << i;
 271     EXPECT_EQ(tile_size, quad->texture_size) << LayerTestCommon::quad_string
 272                                              << i;
 273     EXPECT_EQ(gfx::Size(1, 1).ToString(), quad->opaque_rect.size().ToString())
 274         << LayerTestCommon::quad_string << i;
 275   }
 276 }
 277
 278 TEST_F(TiledLayerImplTest, GPUMemoryUsage) {
 279   gfx::Size tile_size(20, 30);
 280   int num_tiles_x = 12;
 281   int num_tiles_y = 32;
 282   gfx::Size layer_size(tile_size.width() * num_tiles_x,
 283                        tile_size.height() * num_tiles_y);
 284
 285   scoped_ptr<TiledLayerImpl> layer = CreateLayerNoTiles(
 286       tile_size, layer_size, LayerTilingData::NO_BORDER_TEXELS);
 287
 288   EXPECT_EQ(layer->GPUMemoryUsageInBytes(), 0u);
 289
 290   ResourceProvider::ResourceId resource_id = 1;
 291   layer->PushTileProperties(0, 1, resource_id++, gfx::Rect(0, 0, 1, 1), false);
 292   layer->PushTileProperties(2, 3, resource_id++, gfx::Rect(0, 0, 1, 1), false);
 293   layer->PushTileProperties(2, 0, resource_id++, gfx::Rect(0, 0, 1, 1), false);
 294
 295   EXPECT_EQ(
 296       layer->GPUMemoryUsageInBytes(),
 297       static_cast<size_t>(3 * 4 * tile_size.width() * tile_size.height()));
 298
 299   ResourceProvider::ResourceId empty_resource(0);
 300   layer->PushTileProperties(0, 1, empty_resource, gfx::Rect(0, 0, 1, 1), false);
 301   layer->PushTileProperties(2, 3, empty_resource, gfx::Rect(0, 0, 1, 1), false);
 302   layer->PushTileProperties(2, 0, empty_resource, gfx::Rect(0, 0, 1, 1), false);
 303
 304   EXPECT_EQ(layer->GPUMemoryUsageInBytes(), 0u);
 305 }
 306
 307 TEST_F(TiledLayerImplTest, EmptyMask) {
 308   gfx::Size tile_size(20, 20);
 309   gfx::Size layer_size(0, 0);
 310   scoped_ptr<TiledLayerImpl> layer =
 311       CreateLayer(tile_size, layer_size, LayerTilingData::NO_BORDER_TEXELS);
 312
 313   EXPECT_EQ(0u, layer->ContentsResourceId());
 314   EXPECT_EQ(0, layer->TilingForTesting()->num_tiles_x());
 315   EXPECT_EQ(0, layer->TilingForTesting()->num_tiles_y());
 316 }
 317
 318 }  // namespace
 319 }  // namespace cc