1 // Copyright 2011 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/trees/layer_tree_host_common.h" 6 7 #include <set> 8 9 #include "cc/animation/layer_animation_controller.h" 10 #include "cc/animation/transform_operations.h" 11 #include "cc/base/math_util.h" 12 #include "cc/layers/content_layer.h" 13 #include "cc/layers/content_layer_client.h" 14 #include "cc/layers/layer.h" 15 #include "cc/layers/layer_client.h" 16 #include "cc/layers/layer_impl.h" 17 #include "cc/layers/layer_iterator.h" 18 #include "cc/layers/render_surface.h" 19 #include "cc/layers/render_surface_impl.h" 20 #include "cc/output/copy_output_request.h" 21 #include "cc/output/copy_output_result.h" 22 #include "cc/test/animation_test_common.h" 23 #include "cc/test/fake_impl_proxy.h" 24 #include "cc/test/fake_layer_tree_host.h" 25 #include "cc/test/fake_layer_tree_host_impl.h" 26 #include "cc/test/geometry_test_utils.h" 27 #include "cc/test/layer_tree_host_common_test.h" 28 #include "cc/trees/layer_tree_impl.h" 29 #include "cc/trees/proxy.h" 30 #include "cc/trees/single_thread_proxy.h" 31 #include "testing/gmock/include/gmock/gmock.h" 32 #include "testing/gtest/include/gtest/gtest.h" 33 #include "ui/gfx/quad_f.h" 34 #include "ui/gfx/transform.h" 35 36 namespace cc { 37 namespace { 38 39 class LayerWithForcedDrawsContent : public Layer { 40 public: 41 LayerWithForcedDrawsContent() : Layer(), last_device_scale_factor_(0.f) {} 42 43 virtual bool DrawsContent() const OVERRIDE; 44 virtual void CalculateContentsScale(float ideal_contents_scale, 45 float device_scale_factor, 46 float page_scale_factor, 47 float maximum_animation_contents_scale, 48 bool animating_transform_to_screen, 49 float* contents_scale_x, 50 float* contents_scale_y, 51 gfx::Size* content_bounds) OVERRIDE; 52 53 float last_device_scale_factor() const { return last_device_scale_factor_; } 54 55 private: 56 virtual ~LayerWithForcedDrawsContent() {} 57 58 // Parameters from last CalculateContentsScale. 59 float last_device_scale_factor_; 60 }; 61 62 bool LayerWithForcedDrawsContent::DrawsContent() const { return true; } 63 64 void LayerWithForcedDrawsContent::CalculateContentsScale( 65 float ideal_contents_scale, 66 float device_scale_factor, 67 float page_scale_factor, 68 float maximum_animation_contents_scale, 69 bool animating_transform_to_screen, 70 float* contents_scale_x, 71 float* contents_scale_y, 72 gfx::Size* content_bounds) { 73 last_device_scale_factor_ = device_scale_factor; 74 Layer::CalculateContentsScale(ideal_contents_scale, 75 device_scale_factor, 76 page_scale_factor, 77 maximum_animation_contents_scale, 78 animating_transform_to_screen, 79 contents_scale_x, 80 contents_scale_y, 81 content_bounds); 82 } 83 84 class MockContentLayerClient : public ContentLayerClient { 85 public: 86 MockContentLayerClient() {} 87 virtual ~MockContentLayerClient() {} 88 virtual void PaintContents( 89 SkCanvas* canvas, 90 const gfx::Rect& clip, 91 gfx::RectF* opaque, 92 ContentLayerClient::GraphicsContextStatus gc_status) OVERRIDE {} 93 virtual void DidChangeLayerCanUseLCDText() OVERRIDE {} 94 virtual bool FillsBoundsCompletely() const OVERRIDE { return false; } 95 }; 96 97 scoped_refptr<ContentLayer> CreateDrawableContentLayer( 98 ContentLayerClient* delegate) { 99 scoped_refptr<ContentLayer> to_return = ContentLayer::Create(delegate); 100 to_return->SetIsDrawable(true); 101 return to_return; 102 } 103 104 #define EXPECT_CONTENTS_SCALE_EQ(expected, layer) \ 105 do { \ 106 EXPECT_FLOAT_EQ(expected, layer->contents_scale_x()); \ 107 EXPECT_FLOAT_EQ(expected, layer->contents_scale_y()); \ 108 } while (false) 109 110 TEST_F(LayerTreeHostCommonTest, TransformsForNoOpLayer) { 111 // Sanity check: For layers positioned at zero, with zero size, 112 // and with identity transforms, then the draw transform, 113 // screen space transform, and the hierarchy passed on to children 114 // layers should also be identity transforms. 115 116 scoped_refptr<Layer> parent = Layer::Create(); 117 scoped_refptr<Layer> child = Layer::Create(); 118 scoped_refptr<Layer> grand_child = Layer::Create(); 119 parent->AddChild(child); 120 child->AddChild(grand_child); 121 122 scoped_ptr<FakeLayerTreeHost> host = FakeLayerTreeHost::Create(); 123 host->SetRootLayer(parent); 124 125 gfx::Transform identity_matrix; 126 SetLayerPropertiesForTesting(parent.get(), 127 identity_matrix, 128 gfx::Point3F(), 129 gfx::PointF(), 130 gfx::Size(100, 100), 131 true, 132 false); 133 SetLayerPropertiesForTesting(child.get(), 134 identity_matrix, 135 gfx::Point3F(), 136 gfx::PointF(), 137 gfx::Size(), 138 true, 139 false); 140 SetLayerPropertiesForTesting(grand_child.get(), 141 identity_matrix, 142 gfx::Point3F(), 143 gfx::PointF(), 144 gfx::Size(), 145 true, 146 false); 147 148 ExecuteCalculateDrawProperties(parent.get()); 149 150 EXPECT_TRANSFORMATION_MATRIX_EQ(identity_matrix, child->draw_transform()); 151 EXPECT_TRANSFORMATION_MATRIX_EQ(identity_matrix, 152 child->screen_space_transform()); 153 EXPECT_TRANSFORMATION_MATRIX_EQ(identity_matrix, 154 grand_child->draw_transform()); 155 EXPECT_TRANSFORMATION_MATRIX_EQ(identity_matrix, 156 grand_child->screen_space_transform()); 157 } 158 159 TEST_F(LayerTreeHostCommonTest, DoNotSkipLayersWithHandlers) { 160 scoped_refptr<Layer> parent = Layer::Create(); 161 scoped_refptr<Layer> child = Layer::Create(); 162 scoped_refptr<Layer> grand_child = Layer::Create(); 163 parent->AddChild(child); 164 child->AddChild(grand_child); 165 166 scoped_ptr<FakeLayerTreeHost> host = FakeLayerTreeHost::Create(); 167 host->SetRootLayer(parent); 168 169 gfx::Transform identity_matrix; 170 SetLayerPropertiesForTesting(parent.get(), 171 identity_matrix, 172 gfx::Point3F(), 173 gfx::PointF(), 174 gfx::Size(100, 100), 175 true, 176 false); 177 SetLayerPropertiesForTesting(child.get(), 178 identity_matrix, 179 gfx::Point3F(), 180 gfx::PointF(10, 10), 181 gfx::Size(100, 100), 182 true, 183 false); 184 // This would have previously caused us to skip our subtree, but this would be 185 // wrong; we need up-to-date draw properties to do hit testing on the layers 186 // with handlers. 187 child->SetOpacity(0.f); 188 SetLayerPropertiesForTesting(grand_child.get(), 189 identity_matrix, 190 gfx::Point3F(), 191 gfx::PointF(10, 10), 192 gfx::Size(100, 100), 193 true, 194 false); 195 grand_child->SetTouchEventHandlerRegion(gfx::Rect(0, 0, 100, 100)); 196 197 ExecuteCalculateDrawProperties(parent.get()); 198 199 // Check that we've computed draw properties for the subtree rooted at 200 // |child|. 201 EXPECT_FALSE(child->draw_transform().IsIdentity()); 202 EXPECT_FALSE(grand_child->draw_transform().IsIdentity()); 203 } 204 205 TEST_F(LayerTreeHostCommonTest, TransformsForSingleLayer) { 206 gfx::Transform identity_matrix; 207 scoped_refptr<Layer> layer = Layer::Create(); 208 209 scoped_refptr<Layer> root = Layer::Create(); 210 SetLayerPropertiesForTesting(root.get(), 211 identity_matrix, 212 gfx::Point3F(), 213 gfx::PointF(), 214 gfx::Size(1, 2), 215 true, 216 false); 217 root->AddChild(layer); 218 219 scoped_ptr<FakeLayerTreeHost> host = FakeLayerTreeHost::Create(); 220 host->SetRootLayer(root); 221 222 // Case 2: Setting the bounds of the layer should not affect either the draw 223 // transform or the screenspace transform. 224 gfx::Transform translation_to_center; 225 translation_to_center.Translate(5.0, 6.0); 226 SetLayerPropertiesForTesting(layer.get(), 227 identity_matrix, 228 gfx::Point3F(), 229 gfx::PointF(), 230 gfx::Size(10, 12), 231 true, 232 false); 233 ExecuteCalculateDrawProperties(root.get()); 234 EXPECT_TRANSFORMATION_MATRIX_EQ(identity_matrix, layer->draw_transform()); 235 EXPECT_TRANSFORMATION_MATRIX_EQ(identity_matrix, 236 layer->screen_space_transform()); 237 238 // Case 3: The anchor point by itself (without a layer transform) should have 239 // no effect on the transforms. 240 SetLayerPropertiesForTesting(layer.get(), 241 identity_matrix, 242 gfx::Point3F(2.5f, 3.0f, 0.f), 243 gfx::PointF(), 244 gfx::Size(10, 12), 245 true, 246 false); 247 ExecuteCalculateDrawProperties(root.get()); 248 EXPECT_TRANSFORMATION_MATRIX_EQ(identity_matrix, layer->draw_transform()); 249 EXPECT_TRANSFORMATION_MATRIX_EQ(identity_matrix, 250 layer->screen_space_transform()); 251 252 // Case 4: A change in actual position affects both the draw transform and 253 // screen space transform. 254 gfx::Transform position_transform; 255 position_transform.Translate(0.f, 1.2f); 256 SetLayerPropertiesForTesting(layer.get(), 257 identity_matrix, 258 gfx::Point3F(2.5f, 3.0f, 0.f), 259 gfx::PointF(0.f, 1.2f), 260 gfx::Size(10, 12), 261 true, 262 false); 263 ExecuteCalculateDrawProperties(root.get()); 264 EXPECT_TRANSFORMATION_MATRIX_EQ(position_transform, layer->draw_transform()); 265 EXPECT_TRANSFORMATION_MATRIX_EQ(position_transform, 266 layer->screen_space_transform()); 267 268 // Case 5: In the correct sequence of transforms, the layer transform should 269 // pre-multiply the translation_to_center. This is easily tested by using a 270 // scale transform, because scale and translation are not commutative. 271 gfx::Transform layer_transform; 272 layer_transform.Scale3d(2.0, 2.0, 1.0); 273 SetLayerPropertiesForTesting(layer.get(), 274 layer_transform, 275 gfx::Point3F(), 276 gfx::PointF(), 277 gfx::Size(10, 12), 278 true, 279 false); 280 ExecuteCalculateDrawProperties(root.get()); 281 EXPECT_TRANSFORMATION_MATRIX_EQ(layer_transform, layer->draw_transform()); 282 EXPECT_TRANSFORMATION_MATRIX_EQ(layer_transform, 283 layer->screen_space_transform()); 284 285 // Case 6: The layer transform should occur with respect to the anchor point. 286 gfx::Transform translation_to_anchor; 287 translation_to_anchor.Translate(5.0, 0.0); 288 gfx::Transform expected_result = 289 translation_to_anchor * layer_transform * Inverse(translation_to_anchor); 290 SetLayerPropertiesForTesting(layer.get(), 291 layer_transform, 292 gfx::Point3F(5.0f, 0.f, 0.f), 293 gfx::PointF(), 294 gfx::Size(10, 12), 295 true, 296 false); 297 ExecuteCalculateDrawProperties(root.get()); 298 EXPECT_TRANSFORMATION_MATRIX_EQ(expected_result, layer->draw_transform()); 299 EXPECT_TRANSFORMATION_MATRIX_EQ(expected_result, 300 layer->screen_space_transform()); 301 302 // Case 7: Verify that position pre-multiplies the layer transform. The 303 // current implementation of CalculateDrawProperties does this implicitly, but 304 // it is still worth testing to detect accidental regressions. 305 expected_result = position_transform * translation_to_anchor * 306 layer_transform * Inverse(translation_to_anchor); 307 SetLayerPropertiesForTesting(layer.get(), 308 layer_transform, 309 gfx::Point3F(5.0f, 0.f, 0.f), 310 gfx::PointF(0.f, 1.2f), 311 gfx::Size(10, 12), 312 true, 313 false); 314 ExecuteCalculateDrawProperties(root.get()); 315 EXPECT_TRANSFORMATION_MATRIX_EQ(expected_result, layer->draw_transform()); 316 EXPECT_TRANSFORMATION_MATRIX_EQ(expected_result, 317 layer->screen_space_transform()); 318 } 319 320 TEST_F(LayerTreeHostCommonTest, TransformsAboutScrollOffset) { 321 const gfx::Vector2d kScrollOffset(50, 100); 322 const gfx::Vector2dF kScrollDelta(2.34f, 5.67f); 323 const gfx::Vector2d kMaxScrollOffset(200, 200); 324 const gfx::PointF kScrollLayerPosition(-kScrollOffset.x(), 325 -kScrollOffset.y()); 326 const float kPageScale = 0.888f; 327 const float kDeviceScale = 1.666f; 328 329 FakeImplProxy proxy; 330 TestSharedBitmapManager shared_bitmap_manager; 331 FakeLayerTreeHostImpl host_impl(&proxy, &shared_bitmap_manager); 332 333 gfx::Transform identity_matrix; 334 scoped_ptr<LayerImpl> sublayer_scoped_ptr( 335 LayerImpl::Create(host_impl.active_tree(), 1)); 336 LayerImpl* sublayer = sublayer_scoped_ptr.get(); 337 sublayer->SetContentsScale(kPageScale * kDeviceScale, 338 kPageScale * kDeviceScale); 339 SetLayerPropertiesForTesting(sublayer, 340 identity_matrix, 341 gfx::Point3F(), 342 gfx::PointF(), 343 gfx::Size(500, 500), 344 true, 345 false); 346 347 scoped_ptr<LayerImpl> scroll_layer_scoped_ptr( 348 LayerImpl::Create(host_impl.active_tree(), 2)); 349 LayerImpl* scroll_layer = scroll_layer_scoped_ptr.get(); 350 SetLayerPropertiesForTesting(scroll_layer, 351 identity_matrix, 352 gfx::Point3F(), 353 gfx::PointF(), 354 gfx::Size(10, 20), 355 true, 356 false); 357 scoped_ptr<LayerImpl> clip_layer_scoped_ptr( 358 LayerImpl::Create(host_impl.active_tree(), 4)); 359 LayerImpl* clip_layer = clip_layer_scoped_ptr.get(); 360 361 scroll_layer->SetScrollClipLayer(clip_layer->id()); 362 clip_layer->SetBounds( 363 gfx::Size(scroll_layer->bounds().width() + kMaxScrollOffset.x(), 364 scroll_layer->bounds().height() + kMaxScrollOffset.y())); 365 scroll_layer->SetScrollClipLayer(clip_layer->id()); 366 scroll_layer->SetScrollDelta(kScrollDelta); 367 gfx::Transform impl_transform; 368 scroll_layer->AddChild(sublayer_scoped_ptr.Pass()); 369 LayerImpl* scroll_layer_raw_ptr = scroll_layer_scoped_ptr.get(); 370 clip_layer->AddChild(scroll_layer_scoped_ptr.Pass()); 371 scroll_layer_raw_ptr->SetScrollOffset(kScrollOffset); 372 373 scoped_ptr<LayerImpl> root(LayerImpl::Create(host_impl.active_tree(), 3)); 374 SetLayerPropertiesForTesting(root.get(), 375 identity_matrix, 376 gfx::Point3F(), 377 gfx::PointF(), 378 gfx::Size(3, 4), 379 true, 380 false); 381 root->AddChild(clip_layer_scoped_ptr.Pass()); 382 383 ExecuteCalculateDrawProperties( 384 root.get(), kDeviceScale, kPageScale, scroll_layer->parent()); 385 gfx::Transform expected_transform = identity_matrix; 386 gfx::PointF sub_layer_screen_position = kScrollLayerPosition - kScrollDelta; 387 sub_layer_screen_position.Scale(kPageScale * kDeviceScale); 388 expected_transform.Translate(MathUtil::Round(sub_layer_screen_position.x()), 389 MathUtil::Round(sub_layer_screen_position.y())); 390 EXPECT_TRANSFORMATION_MATRIX_EQ(expected_transform, 391 sublayer->draw_transform()); 392 EXPECT_TRANSFORMATION_MATRIX_EQ(expected_transform, 393 sublayer->screen_space_transform()); 394 395 gfx::Transform arbitrary_translate; 396 const float kTranslateX = 10.6f; 397 const float kTranslateY = 20.6f; 398 arbitrary_translate.Translate(kTranslateX, kTranslateY); 399 SetLayerPropertiesForTesting(scroll_layer, 400 arbitrary_translate, 401 gfx::Point3F(), 402 gfx::PointF(), 403 gfx::Size(10, 20), 404 true, 405 false); 406 ExecuteCalculateDrawProperties( 407 root.get(), kDeviceScale, kPageScale, scroll_layer->parent()); 408 expected_transform.MakeIdentity(); 409 expected_transform.Translate( 410 MathUtil::Round(kTranslateX * kPageScale * kDeviceScale + 411 sub_layer_screen_position.x()), 412 MathUtil::Round(kTranslateY * kPageScale * kDeviceScale + 413 sub_layer_screen_position.y())); 414 EXPECT_TRANSFORMATION_MATRIX_EQ(expected_transform, 415 sublayer->draw_transform()); 416 } 417 418 TEST_F(LayerTreeHostCommonTest, TransformsForSimpleHierarchy) { 419 gfx::Transform identity_matrix; 420 scoped_refptr<Layer> root = Layer::Create(); 421 scoped_refptr<Layer> parent = Layer::Create(); 422 scoped_refptr<Layer> child = Layer::Create(); 423 scoped_refptr<Layer> grand_child = Layer::Create(); 424 root->AddChild(parent); 425 parent->AddChild(child); 426 child->AddChild(grand_child); 427 428 scoped_ptr<FakeLayerTreeHost> host = FakeLayerTreeHost::Create(); 429 host->SetRootLayer(root); 430 431 // One-time setup of root layer 432 SetLayerPropertiesForTesting(root.get(), 433 identity_matrix, 434 gfx::Point3F(), 435 gfx::PointF(), 436 gfx::Size(1, 2), 437 true, 438 false); 439 440 // Case 1: parent's anchor point should not affect child or grand_child. 441 SetLayerPropertiesForTesting(parent.get(), 442 identity_matrix, 443 gfx::Point3F(2.5f, 3.0f, 0.f), 444 gfx::PointF(), 445 gfx::Size(10, 12), 446 true, 447 false); 448 SetLayerPropertiesForTesting(child.get(), 449 identity_matrix, 450 gfx::Point3F(), 451 gfx::PointF(), 452 gfx::Size(16, 18), 453 true, 454 false); 455 SetLayerPropertiesForTesting(grand_child.get(), 456 identity_matrix, 457 gfx::Point3F(), 458 gfx::PointF(), 459 gfx::Size(76, 78), 460 true, 461 false); 462 ExecuteCalculateDrawProperties(root.get()); 463 EXPECT_TRANSFORMATION_MATRIX_EQ(identity_matrix, child->draw_transform()); 464 EXPECT_TRANSFORMATION_MATRIX_EQ(identity_matrix, 465 child->screen_space_transform()); 466 EXPECT_TRANSFORMATION_MATRIX_EQ(identity_matrix, 467 grand_child->draw_transform()); 468 EXPECT_TRANSFORMATION_MATRIX_EQ(identity_matrix, 469 grand_child->screen_space_transform()); 470 471 // Case 2: parent's position affects child and grand_child. 472 gfx::Transform parent_position_transform; 473 parent_position_transform.Translate(0.f, 1.2f); 474 SetLayerPropertiesForTesting(parent.get(), 475 identity_matrix, 476 gfx::Point3F(2.5f, 3.0f, 0.f), 477 gfx::PointF(0.f, 1.2f), 478 gfx::Size(10, 12), 479 true, 480 false); 481 SetLayerPropertiesForTesting(child.get(), 482 identity_matrix, 483 gfx::Point3F(), 484 gfx::PointF(), 485 gfx::Size(16, 18), 486 true, 487 false); 488 SetLayerPropertiesForTesting(grand_child.get(), 489 identity_matrix, 490 gfx::Point3F(), 491 gfx::PointF(), 492 gfx::Size(76, 78), 493 true, 494 false); 495 ExecuteCalculateDrawProperties(root.get()); 496 EXPECT_TRANSFORMATION_MATRIX_EQ(parent_position_transform, 497 child->draw_transform()); 498 EXPECT_TRANSFORMATION_MATRIX_EQ(parent_position_transform, 499 child->screen_space_transform()); 500 EXPECT_TRANSFORMATION_MATRIX_EQ(parent_position_transform, 501 grand_child->draw_transform()); 502 EXPECT_TRANSFORMATION_MATRIX_EQ(parent_position_transform, 503 grand_child->screen_space_transform()); 504 505 // Case 3: parent's local transform affects child and grandchild 506 gfx::Transform parent_layer_transform; 507 parent_layer_transform.Scale3d(2.0, 2.0, 1.0); 508 gfx::Transform parent_translation_to_anchor; 509 parent_translation_to_anchor.Translate(2.5, 3.0); 510 gfx::Transform parent_composite_transform = 511 parent_translation_to_anchor * parent_layer_transform * 512 Inverse(parent_translation_to_anchor); 513 SetLayerPropertiesForTesting(parent.get(), 514 parent_layer_transform, 515 gfx::Point3F(2.5f, 3.0f, 0.f), 516 gfx::PointF(), 517 gfx::Size(10, 12), 518 true, 519 false); 520 SetLayerPropertiesForTesting(child.get(), 521 identity_matrix, 522 gfx::Point3F(), 523 gfx::PointF(), 524 gfx::Size(16, 18), 525 true, 526 false); 527 SetLayerPropertiesForTesting(grand_child.get(), 528 identity_matrix, 529 gfx::Point3F(), 530 gfx::PointF(), 531 gfx::Size(76, 78), 532 true, 533 false); 534 ExecuteCalculateDrawProperties(root.get()); 535 EXPECT_TRANSFORMATION_MATRIX_EQ(parent_composite_transform, 536 child->draw_transform()); 537 EXPECT_TRANSFORMATION_MATRIX_EQ(parent_composite_transform, 538 child->screen_space_transform()); 539 EXPECT_TRANSFORMATION_MATRIX_EQ(parent_composite_transform, 540 grand_child->draw_transform()); 541 EXPECT_TRANSFORMATION_MATRIX_EQ(parent_composite_transform, 542 grand_child->screen_space_transform()); 543 } 544 545 TEST_F(LayerTreeHostCommonTest, TransformsForSingleRenderSurface) { 546 scoped_refptr<Layer> root = Layer::Create(); 547 scoped_refptr<Layer> parent = Layer::Create(); 548 scoped_refptr<Layer> child = Layer::Create(); 549 scoped_refptr<LayerWithForcedDrawsContent> grand_child = 550 make_scoped_refptr(new LayerWithForcedDrawsContent()); 551 root->AddChild(parent); 552 parent->AddChild(child); 553 child->AddChild(grand_child); 554 555 scoped_ptr<FakeLayerTreeHost> host = FakeLayerTreeHost::Create(); 556 host->SetRootLayer(root); 557 558 // One-time setup of root layer 559 gfx::Transform identity_matrix; 560 SetLayerPropertiesForTesting(root.get(), 561 identity_matrix, 562 gfx::Point3F(), 563 gfx::PointF(), 564 gfx::Size(1, 2), 565 true, 566 false); 567 568 // Child is set up so that a new render surface should be created. 569 child->SetOpacity(0.5f); 570 child->SetForceRenderSurface(true); 571 572 gfx::Transform parent_layer_transform; 573 parent_layer_transform.Scale3d(1.f, 0.9f, 1.f); 574 gfx::Transform parent_translation_to_anchor; 575 parent_translation_to_anchor.Translate(25.0, 30.0); 576 577 gfx::Transform parent_composite_transform = 578 parent_translation_to_anchor * parent_layer_transform * 579 Inverse(parent_translation_to_anchor); 580 gfx::Vector2dF parent_composite_scale = 581 MathUtil::ComputeTransform2dScaleComponents(parent_composite_transform, 582 1.f); 583 gfx::Transform surface_sublayer_transform; 584 surface_sublayer_transform.Scale(parent_composite_scale.x(), 585 parent_composite_scale.y()); 586 gfx::Transform surface_sublayer_composite_transform = 587 parent_composite_transform * Inverse(surface_sublayer_transform); 588 589 // Child's render surface should not exist yet. 590 ASSERT_FALSE(child->render_surface()); 591 592 SetLayerPropertiesForTesting(parent.get(), 593 parent_layer_transform, 594 gfx::Point3F(25.0f, 30.0f, 0.f), 595 gfx::PointF(), 596 gfx::Size(100, 120), 597 true, 598 false); 599 SetLayerPropertiesForTesting(child.get(), 600 identity_matrix, 601 gfx::Point3F(), 602 gfx::PointF(), 603 gfx::Size(16, 18), 604 true, 605 false); 606 SetLayerPropertiesForTesting(grand_child.get(), 607 identity_matrix, 608 gfx::Point3F(), 609 gfx::PointF(), 610 gfx::Size(8, 10), 611 true, 612 false); 613 ExecuteCalculateDrawProperties(root.get()); 614 615 // Render surface should have been created now. 616 ASSERT_TRUE(child->render_surface()); 617 ASSERT_EQ(child, child->render_target()); 618 619 // The child layer's draw transform should refer to its new render surface. 620 // The screen-space transform, however, should still refer to the root. 621 EXPECT_TRANSFORMATION_MATRIX_EQ(surface_sublayer_transform, 622 child->draw_transform()); 623 EXPECT_TRANSFORMATION_MATRIX_EQ(parent_composite_transform, 624 child->screen_space_transform()); 625 626 // Because the grand_child is the only drawable content, the child's render 627 // surface will tighten its bounds to the grand_child. The scale at which the 628 // surface's subtree is drawn must be removed from the composite transform. 629 EXPECT_TRANSFORMATION_MATRIX_EQ( 630 surface_sublayer_composite_transform, 631 child->render_target()->render_surface()->draw_transform()); 632 633 // The screen space is the same as the target since the child surface draws 634 // into the root. 635 EXPECT_TRANSFORMATION_MATRIX_EQ( 636 surface_sublayer_composite_transform, 637 child->render_target()->render_surface()->screen_space_transform()); 638 } 639 640 TEST_F(LayerTreeHostCommonTest, TransformsForReplica) { 641 scoped_refptr<Layer> root = Layer::Create(); 642 scoped_refptr<Layer> parent = Layer::Create(); 643 scoped_refptr<Layer> child = Layer::Create(); 644 scoped_refptr<Layer> child_replica = Layer::Create(); 645 scoped_refptr<LayerWithForcedDrawsContent> grand_child = 646 make_scoped_refptr(new LayerWithForcedDrawsContent()); 647 root->AddChild(parent); 648 parent->AddChild(child); 649 child->AddChild(grand_child); 650 child->SetReplicaLayer(child_replica.get()); 651 652 scoped_ptr<FakeLayerTreeHost> host = FakeLayerTreeHost::Create(); 653 host->SetRootLayer(root); 654 655 // One-time setup of root layer 656 gfx::Transform identity_matrix; 657 SetLayerPropertiesForTesting(root.get(), 658 identity_matrix, 659 gfx::Point3F(), 660 gfx::PointF(), 661 gfx::Size(1, 2), 662 true, 663 false); 664 665 // Child is set up so that a new render surface should be created. 666 child->SetOpacity(0.5f); 667 668 gfx::Transform parent_layer_transform; 669 parent_layer_transform.Scale3d(2.0, 2.0, 1.0); 670 gfx::Transform parent_translation_to_anchor; 671 parent_translation_to_anchor.Translate(2.5, 3.0); 672 gfx::Transform parent_composite_transform = 673 parent_translation_to_anchor * parent_layer_transform * 674 Inverse(parent_translation_to_anchor); 675 gfx::Transform replica_layer_transform; 676 replica_layer_transform.Scale3d(3.0, 3.0, 1.0); 677 gfx::Vector2dF parent_composite_scale = 678 MathUtil::ComputeTransform2dScaleComponents(parent_composite_transform, 679 1.f); 680 gfx::Transform surface_sublayer_transform; 681 surface_sublayer_transform.Scale(parent_composite_scale.x(), 682 parent_composite_scale.y()); 683 gfx::Transform replica_composite_transform = 684 parent_composite_transform * replica_layer_transform * 685 Inverse(surface_sublayer_transform); 686 687 // Child's render surface should not exist yet. 688 ASSERT_FALSE(child->render_surface()); 689 690 SetLayerPropertiesForTesting(parent.get(), 691 parent_layer_transform, 692 gfx::Point3F(2.5f, 3.0f, 0.f), 693 gfx::PointF(), 694 gfx::Size(10, 12), 695 true, 696 false); 697 SetLayerPropertiesForTesting(child.get(), 698 identity_matrix, 699 gfx::Point3F(), 700 gfx::PointF(), 701 gfx::Size(16, 18), 702 true, 703 false); 704 SetLayerPropertiesForTesting(grand_child.get(), 705 identity_matrix, 706 gfx::Point3F(), 707 gfx::PointF(-0.5f, -0.5f), 708 gfx::Size(1, 1), 709 true, 710 false); 711 SetLayerPropertiesForTesting(child_replica.get(), 712 replica_layer_transform, 713 gfx::Point3F(), 714 gfx::PointF(), 715 gfx::Size(), 716 true, 717 false); 718 ExecuteCalculateDrawProperties(root.get()); 719 720 // Render surface should have been created now. 721 ASSERT_TRUE(child->render_surface()); 722 ASSERT_EQ(child, child->render_target()); 723 724 EXPECT_TRANSFORMATION_MATRIX_EQ( 725 replica_composite_transform, 726 child->render_target()->render_surface()->replica_draw_transform()); 727 EXPECT_TRANSFORMATION_MATRIX_EQ(replica_composite_transform, 728 child->render_target() 729 ->render_surface() 730 ->replica_screen_space_transform()); 731 } 732 733 TEST_F(LayerTreeHostCommonTest, TransformsForRenderSurfaceHierarchy) { 734 // This test creates a more complex tree and verifies it all at once. This 735 // covers the following cases: 736 // - layers that are described w.r.t. a render surface: should have draw 737 // transforms described w.r.t. that surface 738 // - A render surface described w.r.t. an ancestor render surface: should 739 // have a draw transform described w.r.t. that ancestor surface 740 // - Replicas of a render surface are described w.r.t. the replica's 741 // transform around its anchor, along with the surface itself. 742 // - Sanity check on recursion: verify transforms of layers described w.r.t. 743 // a render surface that is described w.r.t. an ancestor render surface. 744 // - verifying that each layer has a reference to the correct render surface 745 // and render target values. 746 747 scoped_refptr<Layer> root = Layer::Create(); 748 scoped_refptr<Layer> parent = Layer::Create(); 749 scoped_refptr<Layer> render_surface1 = Layer::Create(); 750 scoped_refptr<Layer> render_surface2 = Layer::Create(); 751 scoped_refptr<Layer> child_of_root = Layer::Create(); 752 scoped_refptr<Layer> child_of_rs1 = Layer::Create(); 753 scoped_refptr<Layer> child_of_rs2 = Layer::Create(); 754 scoped_refptr<Layer> replica_of_rs1 = Layer::Create(); 755 scoped_refptr<Layer> replica_of_rs2 = Layer::Create(); 756 scoped_refptr<Layer> grand_child_of_root = Layer::Create(); 757 scoped_refptr<LayerWithForcedDrawsContent> grand_child_of_rs1 = 758 make_scoped_refptr(new LayerWithForcedDrawsContent()); 759 scoped_refptr<LayerWithForcedDrawsContent> grand_child_of_rs2 = 760 make_scoped_refptr(new LayerWithForcedDrawsContent()); 761 root->AddChild(parent); 762 parent->AddChild(render_surface1); 763 parent->AddChild(child_of_root); 764 render_surface1->AddChild(child_of_rs1); 765 render_surface1->AddChild(render_surface2); 766 render_surface2->AddChild(child_of_rs2); 767 child_of_root->AddChild(grand_child_of_root); 768 child_of_rs1->AddChild(grand_child_of_rs1); 769 child_of_rs2->AddChild(grand_child_of_rs2); 770 render_surface1->SetReplicaLayer(replica_of_rs1.get()); 771 render_surface2->SetReplicaLayer(replica_of_rs2.get()); 772 773 scoped_ptr<FakeLayerTreeHost> host = FakeLayerTreeHost::Create(); 774 host->SetRootLayer(root); 775 776 // In combination with descendant draws content, opacity != 1 forces the layer 777 // to have a new render surface. 778 render_surface1->SetOpacity(0.5f); 779 render_surface2->SetOpacity(0.33f); 780 781 // One-time setup of root layer 782 gfx::Transform identity_matrix; 783 SetLayerPropertiesForTesting(root.get(), 784 identity_matrix, 785 gfx::Point3F(), 786 gfx::PointF(), 787 gfx::Size(1, 2), 788 true, 789 false); 790 791 // All layers in the tree are initialized with an anchor at .25 and a size of 792 // (10,10). matrix "A" is the composite layer transform used in all layers, 793 // Matrix "R" is the composite replica transform used in all replica layers. 794 gfx::Transform translation_to_anchor; 795 translation_to_anchor.Translate(2.5, 0.0); 796 gfx::Transform layer_transform; 797 layer_transform.Translate(1.0, 1.0); 798 gfx::Transform replica_layer_transform; 799 replica_layer_transform.Scale3d(-2.0, 5.0, 1.0); 800 801 gfx::Transform A = 802 translation_to_anchor * layer_transform * Inverse(translation_to_anchor); 803 gfx::Transform R = A * translation_to_anchor * replica_layer_transform * 804 Inverse(translation_to_anchor); 805 806 gfx::Vector2dF surface1_parent_transform_scale = 807 MathUtil::ComputeTransform2dScaleComponents(A, 1.f); 808 gfx::Transform surface1_sublayer_transform; 809 surface1_sublayer_transform.Scale(surface1_parent_transform_scale.x(), 810 surface1_parent_transform_scale.y()); 811 812 // SS1 = transform given to the subtree of render_surface1 813 gfx::Transform SS1 = surface1_sublayer_transform; 814 // S1 = transform to move from render_surface1 pixels to the layer space of 815 // the owning layer 816 gfx::Transform S1 = Inverse(surface1_sublayer_transform); 817 818 gfx::Vector2dF surface2_parent_transform_scale = 819 MathUtil::ComputeTransform2dScaleComponents(SS1 * A, 1.f); 820 gfx::Transform surface2_sublayer_transform; 821 surface2_sublayer_transform.Scale(surface2_parent_transform_scale.x(), 822 surface2_parent_transform_scale.y()); 823 824 // SS2 = transform given to the subtree of render_surface2 825 gfx::Transform SS2 = surface2_sublayer_transform; 826 // S2 = transform to move from render_surface2 pixels to the layer space of 827 // the owning layer 828 gfx::Transform S2 = Inverse(surface2_sublayer_transform); 829 830 SetLayerPropertiesForTesting(parent.get(), 831 layer_transform, 832 gfx::Point3F(2.5f, 0.f, 0.f), 833 gfx::PointF(), 834 gfx::Size(10, 10), 835 true, 836 false); 837 SetLayerPropertiesForTesting(render_surface1.get(), 838 layer_transform, 839 gfx::Point3F(2.5f, 0.f, 0.f), 840 gfx::PointF(), 841 gfx::Size(10, 10), 842 true, 843 false); 844 SetLayerPropertiesForTesting(render_surface2.get(), 845 layer_transform, 846 gfx::Point3F(2.5f, 0.f, 0.f), 847 gfx::PointF(), 848 gfx::Size(10, 10), 849 true, 850 false); 851 SetLayerPropertiesForTesting(child_of_root.get(), 852 layer_transform, 853 gfx::Point3F(2.5f, 0.f, 0.f), 854 gfx::PointF(), 855 gfx::Size(10, 10), 856 true, 857 false); 858 SetLayerPropertiesForTesting(child_of_rs1.get(), 859 layer_transform, 860 gfx::Point3F(2.5f, 0.f, 0.f), 861 gfx::PointF(), 862 gfx::Size(10, 10), 863 true, 864 false); 865 SetLayerPropertiesForTesting(child_of_rs2.get(), 866 layer_transform, 867 gfx::Point3F(2.5f, 0.f, 0.f), 868 gfx::PointF(), 869 gfx::Size(10, 10), 870 true, 871 false); 872 SetLayerPropertiesForTesting(grand_child_of_root.get(), 873 layer_transform, 874 gfx::Point3F(2.5f, 0.f, 0.f), 875 gfx::PointF(), 876 gfx::Size(10, 10), 877 true, 878 false); 879 SetLayerPropertiesForTesting(grand_child_of_rs1.get(), 880 layer_transform, 881 gfx::Point3F(2.5f, 0.f, 0.f), 882 gfx::PointF(), 883 gfx::Size(10, 10), 884 true, 885 false); 886 SetLayerPropertiesForTesting(grand_child_of_rs2.get(), 887 layer_transform, 888 gfx::Point3F(2.5f, 0.f, 0.f), 889 gfx::PointF(), 890 gfx::Size(10, 10), 891 true, 892 false); 893 SetLayerPropertiesForTesting(replica_of_rs1.get(), 894 replica_layer_transform, 895 gfx::Point3F(2.5f, 0.f, 0.f), 896 gfx::PointF(), 897 gfx::Size(), 898 true, 899 false); 900 SetLayerPropertiesForTesting(replica_of_rs2.get(), 901 replica_layer_transform, 902 gfx::Point3F(2.5f, 0.f, 0.f), 903 gfx::PointF(), 904 gfx::Size(), 905 true, 906 false); 907 908 ExecuteCalculateDrawProperties(root.get()); 909 910 // Only layers that are associated with render surfaces should have an actual 911 // RenderSurface() value. 912 ASSERT_TRUE(root->render_surface()); 913 ASSERT_FALSE(child_of_root->render_surface()); 914 ASSERT_FALSE(grand_child_of_root->render_surface()); 915 916 ASSERT_TRUE(render_surface1->render_surface()); 917 ASSERT_FALSE(child_of_rs1->render_surface()); 918 ASSERT_FALSE(grand_child_of_rs1->render_surface()); 919 920 ASSERT_TRUE(render_surface2->render_surface()); 921 ASSERT_FALSE(child_of_rs2->render_surface()); 922 ASSERT_FALSE(grand_child_of_rs2->render_surface()); 923 924 // Verify all render target accessors 925 EXPECT_EQ(root, parent->render_target()); 926 EXPECT_EQ(root, child_of_root->render_target()); 927 EXPECT_EQ(root, grand_child_of_root->render_target()); 928 929 EXPECT_EQ(render_surface1, render_surface1->render_target()); 930 EXPECT_EQ(render_surface1, child_of_rs1->render_target()); 931 EXPECT_EQ(render_surface1, grand_child_of_rs1->render_target()); 932 933 EXPECT_EQ(render_surface2, render_surface2->render_target()); 934 EXPECT_EQ(render_surface2, child_of_rs2->render_target()); 935 EXPECT_EQ(render_surface2, grand_child_of_rs2->render_target()); 936 937 // Verify layer draw transforms note that draw transforms are described with 938 // respect to the nearest ancestor render surface but screen space transforms 939 // are described with respect to the root. 940 EXPECT_TRANSFORMATION_MATRIX_EQ(A, parent->draw_transform()); 941 EXPECT_TRANSFORMATION_MATRIX_EQ(A * A, child_of_root->draw_transform()); 942 EXPECT_TRANSFORMATION_MATRIX_EQ(A * A * A, 943 grand_child_of_root->draw_transform()); 944 945 EXPECT_TRANSFORMATION_MATRIX_EQ(SS1, render_surface1->draw_transform()); 946 EXPECT_TRANSFORMATION_MATRIX_EQ(SS1 * A, child_of_rs1->draw_transform()); 947 EXPECT_TRANSFORMATION_MATRIX_EQ(SS1 * A * A, 948 grand_child_of_rs1->draw_transform()); 949 950 EXPECT_TRANSFORMATION_MATRIX_EQ(SS2, render_surface2->draw_transform()); 951 EXPECT_TRANSFORMATION_MATRIX_EQ(SS2 * A, child_of_rs2->draw_transform()); 952 EXPECT_TRANSFORMATION_MATRIX_EQ(SS2 * A * A, 953 grand_child_of_rs2->draw_transform()); 954 955 // Verify layer screen-space transforms 956 // 957 EXPECT_TRANSFORMATION_MATRIX_EQ(A, parent->screen_space_transform()); 958 EXPECT_TRANSFORMATION_MATRIX_EQ(A * A, 959 child_of_root->screen_space_transform()); 960 EXPECT_TRANSFORMATION_MATRIX_EQ( 961 A * A * A, grand_child_of_root->screen_space_transform()); 962 963 EXPECT_TRANSFORMATION_MATRIX_EQ(A * A, 964 render_surface1->screen_space_transform()); 965 EXPECT_TRANSFORMATION_MATRIX_EQ(A * A * A, 966 child_of_rs1->screen_space_transform()); 967 EXPECT_TRANSFORMATION_MATRIX_EQ(A * A * A * A, 968 grand_child_of_rs1->screen_space_transform()); 969 970 EXPECT_TRANSFORMATION_MATRIX_EQ(A * A * A, 971 render_surface2->screen_space_transform()); 972 EXPECT_TRANSFORMATION_MATRIX_EQ(A * A * A * A, 973 child_of_rs2->screen_space_transform()); 974 EXPECT_TRANSFORMATION_MATRIX_EQ(A * A * A * A * A, 975 grand_child_of_rs2->screen_space_transform()); 976 977 // Verify render surface transforms. 978 // 979 // Draw transform of render surface 1 is described with respect to root. 980 EXPECT_TRANSFORMATION_MATRIX_EQ( 981 A * A * S1, render_surface1->render_surface()->draw_transform()); 982 EXPECT_TRANSFORMATION_MATRIX_EQ( 983 A * R * S1, render_surface1->render_surface()->replica_draw_transform()); 984 EXPECT_TRANSFORMATION_MATRIX_EQ( 985 A * A * S1, render_surface1->render_surface()->screen_space_transform()); 986 EXPECT_TRANSFORMATION_MATRIX_EQ( 987 A * R * S1, 988 render_surface1->render_surface()->replica_screen_space_transform()); 989 // Draw transform of render surface 2 is described with respect to render 990 // surface 1. 991 EXPECT_TRANSFORMATION_MATRIX_EQ( 992 SS1 * A * S2, render_surface2->render_surface()->draw_transform()); 993 EXPECT_TRANSFORMATION_MATRIX_EQ( 994 SS1 * R * S2, 995 render_surface2->render_surface()->replica_draw_transform()); 996 EXPECT_TRANSFORMATION_MATRIX_EQ( 997 A * A * A * S2, 998 render_surface2->render_surface()->screen_space_transform()); 999 EXPECT_TRANSFORMATION_MATRIX_EQ( 1000 A * A * R * S2, 1001 render_surface2->render_surface()->replica_screen_space_transform()); 1002 1003 // Sanity check. If these fail there is probably a bug in the test itself. It 1004 // is expected that we correctly set up transforms so that the y-component of 1005 // the screen-space transform encodes the "depth" of the layer in the tree. 1006 EXPECT_FLOAT_EQ(1.0, parent->screen_space_transform().matrix().get(1, 3)); 1007 EXPECT_FLOAT_EQ(2.0, 1008 child_of_root->screen_space_transform().matrix().get(1, 3)); 1009 EXPECT_FLOAT_EQ( 1010 3.0, grand_child_of_root->screen_space_transform().matrix().get(1, 3)); 1011 1012 EXPECT_FLOAT_EQ(2.0, 1013 render_surface1->screen_space_transform().matrix().get(1, 3)); 1014 EXPECT_FLOAT_EQ(3.0, 1015 child_of_rs1->screen_space_transform().matrix().get(1, 3)); 1016 EXPECT_FLOAT_EQ( 1017 4.0, grand_child_of_rs1->screen_space_transform().matrix().get(1, 3)); 1018 1019 EXPECT_FLOAT_EQ(3.0, 1020 render_surface2->screen_space_transform().matrix().get(1, 3)); 1021 EXPECT_FLOAT_EQ(4.0, 1022 child_of_rs2->screen_space_transform().matrix().get(1, 3)); 1023 EXPECT_FLOAT_EQ( 1024 5.0, grand_child_of_rs2->screen_space_transform().matrix().get(1, 3)); 1025 } 1026 1027 TEST_F(LayerTreeHostCommonTest, TransformsForFlatteningLayer) { 1028 // For layers that flatten their subtree, there should be an orthographic 1029 // projection (for x and y values) in the middle of the transform sequence. 1030 // Note that the way the code is currently implemented, it is not expected to 1031 // use a canonical orthographic projection. 1032 1033 scoped_refptr<Layer> root = Layer::Create(); 1034 scoped_refptr<Layer> child = Layer::Create(); 1035 scoped_refptr<LayerWithForcedDrawsContent> grand_child = 1036 make_scoped_refptr(new LayerWithForcedDrawsContent()); 1037 1038 gfx::Transform rotation_about_y_axis; 1039 rotation_about_y_axis.RotateAboutYAxis(30.0); 1040 1041 const gfx::Transform identity_matrix; 1042 SetLayerPropertiesForTesting(root.get(), 1043 identity_matrix, 1044 gfx::Point3F(), 1045 gfx::PointF(), 1046 gfx::Size(100, 100), 1047 true, 1048 false); 1049 SetLayerPropertiesForTesting(child.get(), 1050 rotation_about_y_axis, 1051 gfx::Point3F(), 1052 gfx::PointF(), 1053 gfx::Size(10, 10), 1054 true, 1055 false); 1056 SetLayerPropertiesForTesting(grand_child.get(), 1057 rotation_about_y_axis, 1058 gfx::Point3F(), 1059 gfx::PointF(), 1060 gfx::Size(10, 10), 1061 true, 1062 false); 1063 1064 root->AddChild(child); 1065 child->AddChild(grand_child); 1066 child->SetForceRenderSurface(true); 1067 1068 scoped_ptr<FakeLayerTreeHost> host = FakeLayerTreeHost::Create(); 1069 host->SetRootLayer(root); 1070 1071 // No layers in this test should preserve 3d. 1072 ASSERT_TRUE(root->should_flatten_transform()); 1073 ASSERT_TRUE(child->should_flatten_transform()); 1074 ASSERT_TRUE(grand_child->should_flatten_transform()); 1075 1076 gfx::Transform expected_child_draw_transform = rotation_about_y_axis; 1077 gfx::Transform expected_child_screen_space_transform = rotation_about_y_axis; 1078 gfx::Transform expected_grand_child_draw_transform = 1079 rotation_about_y_axis; // draws onto child's render surface 1080 gfx::Transform flattened_rotation_about_y = rotation_about_y_axis; 1081 flattened_rotation_about_y.FlattenTo2d(); 1082 gfx::Transform expected_grand_child_screen_space_transform = 1083 flattened_rotation_about_y * rotation_about_y_axis; 1084 1085 ExecuteCalculateDrawProperties(root.get()); 1086 1087 // The child's draw transform should have been taken by its surface. 1088 ASSERT_TRUE(child->render_surface()); 1089 EXPECT_TRANSFORMATION_MATRIX_EQ(expected_child_draw_transform, 1090 child->render_surface()->draw_transform()); 1091 EXPECT_TRANSFORMATION_MATRIX_EQ( 1092 expected_child_screen_space_transform, 1093 child->render_surface()->screen_space_transform()); 1094 EXPECT_TRANSFORMATION_MATRIX_EQ(identity_matrix, child->draw_transform()); 1095 EXPECT_TRANSFORMATION_MATRIX_EQ(expected_child_screen_space_transform, 1096 child->screen_space_transform()); 1097 EXPECT_TRANSFORMATION_MATRIX_EQ(expected_grand_child_draw_transform, 1098 grand_child->draw_transform()); 1099 EXPECT_TRANSFORMATION_MATRIX_EQ(expected_grand_child_screen_space_transform, 1100 grand_child->screen_space_transform()); 1101 } 1102 1103 TEST_F(LayerTreeHostCommonTest, TransformsForDegenerateIntermediateLayer) { 1104 // A layer that is empty in one axis, but not the other, was accidentally 1105 // skipping a necessary translation. Without that translation, the coordinate 1106 // space of the layer's draw transform is incorrect. 1107 // 1108 // Normally this isn't a problem, because the layer wouldn't be drawn anyway, 1109 // but if that layer becomes a render surface, then its draw transform is 1110 // implicitly inherited by the rest of the subtree, which then is positioned 1111 // incorrectly as a result. 1112 1113 scoped_refptr<Layer> root = Layer::Create(); 1114 scoped_refptr<Layer> child = Layer::Create(); 1115 scoped_refptr<LayerWithForcedDrawsContent> grand_child = 1116 make_scoped_refptr(new LayerWithForcedDrawsContent()); 1117 1118 // The child height is zero, but has non-zero width that should be accounted 1119 // for while computing draw transforms. 1120 const gfx::Transform identity_matrix; 1121 SetLayerPropertiesForTesting(root.get(), 1122 identity_matrix, 1123 gfx::Point3F(), 1124 gfx::PointF(), 1125 gfx::Size(100, 100), 1126 true, 1127 false); 1128 SetLayerPropertiesForTesting(child.get(), 1129 identity_matrix, 1130 gfx::Point3F(), 1131 gfx::PointF(), 1132 gfx::Size(10, 0), 1133 true, 1134 false); 1135 SetLayerPropertiesForTesting(grand_child.get(), 1136 identity_matrix, 1137 gfx::Point3F(), 1138 gfx::PointF(), 1139 gfx::Size(10, 10), 1140 true, 1141 false); 1142 1143 root->AddChild(child); 1144 child->AddChild(grand_child); 1145 child->SetForceRenderSurface(true); 1146 1147 scoped_ptr<FakeLayerTreeHost> host = FakeLayerTreeHost::Create(); 1148 host->SetRootLayer(root); 1149 1150 ExecuteCalculateDrawProperties(root.get()); 1151 1152 ASSERT_TRUE(child->render_surface()); 1153 // This is the real test, the rest are sanity checks. 1154 EXPECT_TRANSFORMATION_MATRIX_EQ(identity_matrix, 1155 child->render_surface()->draw_transform()); 1156 EXPECT_TRANSFORMATION_MATRIX_EQ(identity_matrix, child->draw_transform()); 1157 EXPECT_TRANSFORMATION_MATRIX_EQ(identity_matrix, 1158 grand_child->draw_transform()); 1159 } 1160 1161 TEST_F(LayerTreeHostCommonTest, TransformAboveRootLayer) { 1162 // Transformations applied at the root of the tree should be forwarded 1163 // to child layers instead of applied to the root RenderSurface. 1164 const gfx::Transform identity_matrix; 1165 scoped_refptr<LayerWithForcedDrawsContent> root = 1166 new LayerWithForcedDrawsContent; 1167 scoped_refptr<LayerWithForcedDrawsContent> child = 1168 new LayerWithForcedDrawsContent; 1169 child->SetScrollClipLayerId(root->id()); 1170 root->AddChild(child); 1171 1172 scoped_ptr<FakeLayerTreeHost> host = FakeLayerTreeHost::Create(); 1173 host->SetRootLayer(root); 1174 1175 SetLayerPropertiesForTesting(root.get(), 1176 identity_matrix, 1177 gfx::Point3F(), 1178 gfx::PointF(), 1179 gfx::Size(20, 20), 1180 true, 1181 false); 1182 SetLayerPropertiesForTesting(child.get(), 1183 identity_matrix, 1184 gfx::Point3F(), 1185 gfx::PointF(), 1186 gfx::Size(20, 20), 1187 true, 1188 false); 1189 1190 gfx::Transform translate; 1191 translate.Translate(50, 50); 1192 { 1193 RenderSurfaceLayerList render_surface_layer_list; 1194 LayerTreeHostCommon::CalcDrawPropsMainInputsForTesting inputs( 1195 root.get(), root->bounds(), translate, &render_surface_layer_list); 1196 inputs.can_adjust_raster_scales = true; 1197 LayerTreeHostCommon::CalculateDrawProperties(&inputs); 1198 EXPECT_EQ(translate, root->draw_properties().target_space_transform); 1199 EXPECT_EQ(translate, child->draw_properties().target_space_transform); 1200 EXPECT_EQ(identity_matrix, root->render_surface()->draw_transform()); 1201 EXPECT_EQ(1.f, root->last_device_scale_factor()); 1202 EXPECT_EQ(1.f, child->last_device_scale_factor()); 1203 } 1204 1205 gfx::Transform scale; 1206 scale.Scale(2, 2); 1207 { 1208 RenderSurfaceLayerList render_surface_layer_list; 1209 LayerTreeHostCommon::CalcDrawPropsMainInputsForTesting inputs( 1210 root.get(), root->bounds(), scale, &render_surface_layer_list); 1211 inputs.can_adjust_raster_scales = true; 1212 LayerTreeHostCommon::CalculateDrawProperties(&inputs); 1213 EXPECT_EQ(scale, root->draw_properties().target_space_transform); 1214 EXPECT_EQ(scale, child->draw_properties().target_space_transform); 1215 EXPECT_EQ(identity_matrix, root->render_surface()->draw_transform()); 1216 EXPECT_EQ(2.f, root->last_device_scale_factor()); 1217 EXPECT_EQ(2.f, child->last_device_scale_factor()); 1218 } 1219 1220 gfx::Transform rotate; 1221 rotate.Rotate(2); 1222 { 1223 RenderSurfaceLayerList render_surface_layer_list; 1224 LayerTreeHostCommon::CalcDrawPropsMainInputsForTesting inputs( 1225 root.get(), root->bounds(), rotate, &render_surface_layer_list); 1226 inputs.can_adjust_raster_scales = true; 1227 LayerTreeHostCommon::CalculateDrawProperties(&inputs); 1228 EXPECT_EQ(rotate, root->draw_properties().target_space_transform); 1229 EXPECT_EQ(rotate, child->draw_properties().target_space_transform); 1230 EXPECT_EQ(identity_matrix, root->render_surface()->draw_transform()); 1231 EXPECT_EQ(1.f, root->last_device_scale_factor()); 1232 EXPECT_EQ(1.f, child->last_device_scale_factor()); 1233 } 1234 1235 gfx::Transform composite; 1236 composite.ConcatTransform(translate); 1237 composite.ConcatTransform(scale); 1238 composite.ConcatTransform(rotate); 1239 { 1240 RenderSurfaceLayerList render_surface_layer_list; 1241 LayerTreeHostCommon::CalcDrawPropsMainInputsForTesting inputs( 1242 root.get(), root->bounds(), composite, &render_surface_layer_list); 1243 inputs.can_adjust_raster_scales = true; 1244 LayerTreeHostCommon::CalculateDrawProperties(&inputs); 1245 EXPECT_EQ(composite, root->draw_properties().target_space_transform); 1246 EXPECT_EQ(composite, child->draw_properties().target_space_transform); 1247 EXPECT_EQ(identity_matrix, root->render_surface()->draw_transform()); 1248 } 1249 1250 // Verify it composes correctly with device scale. 1251 float device_scale_factor = 1.5f; 1252 1253 { 1254 RenderSurfaceLayerList render_surface_layer_list; 1255 LayerTreeHostCommon::CalcDrawPropsMainInputsForTesting inputs( 1256 root.get(), root->bounds(), translate, &render_surface_layer_list); 1257 inputs.device_scale_factor = device_scale_factor; 1258 inputs.can_adjust_raster_scales = true; 1259 LayerTreeHostCommon::CalculateDrawProperties(&inputs); 1260 gfx::Transform device_scaled_translate = translate; 1261 device_scaled_translate.Scale(device_scale_factor, device_scale_factor); 1262 EXPECT_EQ(device_scaled_translate, 1263 root->draw_properties().target_space_transform); 1264 EXPECT_EQ(device_scaled_translate, 1265 child->draw_properties().target_space_transform); 1266 EXPECT_EQ(identity_matrix, root->render_surface()->draw_transform()); 1267 EXPECT_EQ(device_scale_factor, root->last_device_scale_factor()); 1268 EXPECT_EQ(device_scale_factor, child->last_device_scale_factor()); 1269 } 1270 1271 // Verify it composes correctly with page scale. 1272 float page_scale_factor = 2.f; 1273 1274 { 1275 RenderSurfaceLayerList render_surface_layer_list; 1276 LayerTreeHostCommon::CalcDrawPropsMainInputsForTesting inputs( 1277 root.get(), root->bounds(), translate, &render_surface_layer_list); 1278 inputs.page_scale_factor = page_scale_factor; 1279 inputs.page_scale_application_layer = root.get(); 1280 inputs.can_adjust_raster_scales = true; 1281 LayerTreeHostCommon::CalculateDrawProperties(&inputs); 1282 gfx::Transform page_scaled_translate = translate; 1283 page_scaled_translate.Scale(page_scale_factor, page_scale_factor); 1284 EXPECT_EQ(translate, root->draw_properties().target_space_transform); 1285 EXPECT_EQ(page_scaled_translate, 1286 child->draw_properties().target_space_transform); 1287 EXPECT_EQ(identity_matrix, root->render_surface()->draw_transform()); 1288 EXPECT_EQ(1.f, root->last_device_scale_factor()); 1289 EXPECT_EQ(1.f, child->last_device_scale_factor()); 1290 } 1291 1292 // Verify that it composes correctly with transforms directly on root layer. 1293 root->SetTransform(composite); 1294 1295 { 1296 RenderSurfaceLayerList render_surface_layer_list; 1297 LayerTreeHostCommon::CalcDrawPropsMainInputsForTesting inputs( 1298 root.get(), root->bounds(), composite, &render_surface_layer_list); 1299 inputs.can_adjust_raster_scales = true; 1300 LayerTreeHostCommon::CalculateDrawProperties(&inputs); 1301 gfx::Transform compositeSquared = composite; 1302 compositeSquared.ConcatTransform(composite); 1303 EXPECT_TRANSFORMATION_MATRIX_EQ( 1304 compositeSquared, root->draw_properties().target_space_transform); 1305 EXPECT_TRANSFORMATION_MATRIX_EQ( 1306 compositeSquared, child->draw_properties().target_space_transform); 1307 EXPECT_EQ(identity_matrix, root->render_surface()->draw_transform()); 1308 } 1309 } 1310 1311 TEST_F(LayerTreeHostCommonTest, 1312 RenderSurfaceListForRenderSurfaceWithClippedLayer) { 1313 scoped_refptr<Layer> parent = Layer::Create(); 1314 scoped_refptr<Layer> render_surface1 = Layer::Create(); 1315 scoped_refptr<LayerWithForcedDrawsContent> child = 1316 make_scoped_refptr(new LayerWithForcedDrawsContent()); 1317 1318 scoped_ptr<FakeLayerTreeHost> host = FakeLayerTreeHost::Create(); 1319 host->SetRootLayer(parent); 1320 1321 const gfx::Transform identity_matrix; 1322 SetLayerPropertiesForTesting(parent.get(), 1323 identity_matrix, 1324 gfx::Point3F(), 1325 gfx::PointF(), 1326 gfx::Size(10, 10), 1327 true, 1328 false); 1329 SetLayerPropertiesForTesting(render_surface1.get(), 1330 identity_matrix, 1331 gfx::Point3F(), 1332 gfx::PointF(), 1333 gfx::Size(10, 10), 1334 true, 1335 false); 1336 SetLayerPropertiesForTesting(child.get(), 1337 identity_matrix, 1338 gfx::Point3F(), 1339 gfx::PointF(30.f, 30.f), 1340 gfx::Size(10, 10), 1341 true, 1342 false); 1343 1344 parent->AddChild(render_surface1); 1345 parent->SetMasksToBounds(true); 1346 render_surface1->AddChild(child); 1347 render_surface1->SetForceRenderSurface(true); 1348 1349 RenderSurfaceLayerList render_surface_layer_list; 1350 LayerTreeHostCommon::CalcDrawPropsMainInputsForTesting inputs( 1351 parent.get(), 1352 parent->bounds(), 1353 gfx::Transform(), 1354 &render_surface_layer_list); 1355 LayerTreeHostCommon::CalculateDrawProperties(&inputs); 1356 1357 // The child layer's content is entirely outside the parent's clip rect, so 1358 // the intermediate render surface should not be listed here, even if it was 1359 // forced to be created. Render surfaces without children or visible content 1360 // are unexpected at draw time (e.g. we might try to create a content texture 1361 // of size 0). 1362 ASSERT_TRUE(parent->render_surface()); 1363 EXPECT_EQ(1U, render_surface_layer_list.size()); 1364 } 1365 1366 TEST_F(LayerTreeHostCommonTest, RenderSurfaceListForTransparentChild) { 1367 scoped_refptr<Layer> parent = Layer::Create(); 1368 scoped_refptr<Layer> render_surface1 = Layer::Create(); 1369 scoped_refptr<LayerWithForcedDrawsContent> child = 1370 make_scoped_refptr(new LayerWithForcedDrawsContent()); 1371 1372 scoped_ptr<FakeLayerTreeHost> host = FakeLayerTreeHost::Create(); 1373 host->SetRootLayer(parent); 1374 1375 const gfx::Transform identity_matrix; 1376 SetLayerPropertiesForTesting(render_surface1.get(), 1377 identity_matrix, 1378 gfx::Point3F(), 1379 gfx::PointF(), 1380 gfx::Size(10, 10), 1381 true, 1382 false); 1383 SetLayerPropertiesForTesting(child.get(), 1384 identity_matrix, 1385 gfx::Point3F(), 1386 gfx::PointF(), 1387 gfx::Size(10, 10), 1388 true, 1389 false); 1390 1391 parent->AddChild(render_surface1); 1392 render_surface1->AddChild(child); 1393 render_surface1->SetForceRenderSurface(true); 1394 render_surface1->SetOpacity(0.f); 1395 1396 RenderSurfaceLayerList render_surface_layer_list; 1397 LayerTreeHostCommon::CalcDrawPropsMainInputsForTesting inputs( 1398 parent.get(), parent->bounds(), &render_surface_layer_list); 1399 inputs.can_adjust_raster_scales = true; 1400 LayerTreeHostCommon::CalculateDrawProperties(&inputs); 1401 1402 // Since the layer is transparent, render_surface1->render_surface() should 1403 // not have gotten added anywhere. Also, the drawable content rect should not 1404 // have been extended by the children. 1405 ASSERT_TRUE(parent->render_surface()); 1406 EXPECT_EQ(0U, parent->render_surface()->layer_list().size()); 1407 EXPECT_EQ(1U, render_surface_layer_list.size()); 1408 EXPECT_EQ(parent->id(), render_surface_layer_list.at(0)->id()); 1409 EXPECT_EQ(gfx::Rect(), parent->drawable_content_rect()); 1410 } 1411 1412 TEST_F(LayerTreeHostCommonTest, ForceRenderSurface) { 1413 scoped_refptr<Layer> parent = Layer::Create(); 1414 scoped_refptr<Layer> render_surface1 = Layer::Create(); 1415 scoped_refptr<LayerWithForcedDrawsContent> child = 1416 make_scoped_refptr(new LayerWithForcedDrawsContent()); 1417 render_surface1->SetForceRenderSurface(true); 1418 1419 scoped_ptr<FakeLayerTreeHost> host = FakeLayerTreeHost::Create(); 1420 host->SetRootLayer(parent); 1421 1422 const gfx::Transform identity_matrix; 1423 SetLayerPropertiesForTesting(parent.get(), 1424 identity_matrix, 1425 gfx::Point3F(), 1426 gfx::PointF(), 1427 gfx::Size(10, 10), 1428 true, 1429 false); 1430 SetLayerPropertiesForTesting(render_surface1.get(), 1431 identity_matrix, 1432 gfx::Point3F(), 1433 gfx::PointF(), 1434 gfx::Size(10, 10), 1435 true, 1436 false); 1437 SetLayerPropertiesForTesting(child.get(), 1438 identity_matrix, 1439 gfx::Point3F(), 1440 gfx::PointF(), 1441 gfx::Size(10, 10), 1442 true, 1443 false); 1444 1445 parent->AddChild(render_surface1); 1446 render_surface1->AddChild(child); 1447 1448 // Sanity check before the actual test 1449 EXPECT_FALSE(parent->render_surface()); 1450 EXPECT_FALSE(render_surface1->render_surface()); 1451 1452 { 1453 RenderSurfaceLayerList render_surface_layer_list; 1454 LayerTreeHostCommon::CalcDrawPropsMainInputsForTesting inputs( 1455 parent.get(), parent->bounds(), &render_surface_layer_list); 1456 inputs.can_adjust_raster_scales = true; 1457 LayerTreeHostCommon::CalculateDrawProperties(&inputs); 1458 1459 // The root layer always creates a render surface 1460 EXPECT_TRUE(parent->render_surface()); 1461 EXPECT_TRUE(render_surface1->render_surface()); 1462 EXPECT_EQ(2U, render_surface_layer_list.size()); 1463 } 1464 1465 { 1466 RenderSurfaceLayerList render_surface_layer_list; 1467 render_surface1->SetForceRenderSurface(false); 1468 LayerTreeHostCommon::CalcDrawPropsMainInputsForTesting inputs( 1469 parent.get(), parent->bounds(), &render_surface_layer_list); 1470 inputs.can_adjust_raster_scales = true; 1471 LayerTreeHostCommon::CalculateDrawProperties(&inputs); 1472 EXPECT_TRUE(parent->render_surface()); 1473 EXPECT_FALSE(render_surface1->render_surface()); 1474 EXPECT_EQ(1U, render_surface_layer_list.size()); 1475 } 1476 } 1477 1478 TEST_F(LayerTreeHostCommonTest, ClipRectCullsRenderSurfaces) { 1479 // The entire subtree of layers that are outside the clip rect should be 1480 // culled away, and should not affect the render_surface_layer_list. 1481 // 1482 // The test tree is set up as follows: 1483 // - all layers except the leaf_nodes are forced to be a new render surface 1484 // that have something to draw. 1485 // - parent is a large container layer. 1486 // - child has masksToBounds=true to cause clipping. 1487 // - grand_child is positioned outside of the child's bounds 1488 // - great_grand_child is also kept outside child's bounds. 1489 // 1490 // In this configuration, grand_child and great_grand_child are completely 1491 // outside the clip rect, and they should never get scheduled on the list of 1492 // render surfaces. 1493 // 1494 1495 const gfx::Transform identity_matrix; 1496 scoped_refptr<Layer> parent = Layer::Create(); 1497 scoped_refptr<Layer> child = Layer::Create(); 1498 scoped_refptr<Layer> grand_child = Layer::Create(); 1499 scoped_refptr<Layer> great_grand_child = Layer::Create(); 1500 scoped_refptr<LayerWithForcedDrawsContent> leaf_node1 = 1501 make_scoped_refptr(new LayerWithForcedDrawsContent()); 1502 scoped_refptr<LayerWithForcedDrawsContent> leaf_node2 = 1503 make_scoped_refptr(new LayerWithForcedDrawsContent()); 1504 parent->AddChild(child); 1505 child->AddChild(grand_child); 1506 grand_child->AddChild(great_grand_child); 1507 1508 scoped_ptr<FakeLayerTreeHost> host = FakeLayerTreeHost::Create(); 1509 host->SetRootLayer(parent); 1510 1511 // leaf_node1 ensures that parent and child are kept on the 1512 // render_surface_layer_list, even though grand_child and great_grand_child 1513 // should be clipped. 1514 child->AddChild(leaf_node1); 1515 great_grand_child->AddChild(leaf_node2); 1516 1517 SetLayerPropertiesForTesting(parent.get(), 1518 identity_matrix, 1519 gfx::Point3F(), 1520 gfx::PointF(), 1521 gfx::Size(500, 500), 1522 true, 1523 false); 1524 SetLayerPropertiesForTesting(child.get(), 1525 identity_matrix, 1526 gfx::Point3F(), 1527 gfx::PointF(), 1528 gfx::Size(20, 20), 1529 true, 1530 false); 1531 SetLayerPropertiesForTesting(grand_child.get(), 1532 identity_matrix, 1533 gfx::Point3F(), 1534 gfx::PointF(45.f, 45.f), 1535 gfx::Size(10, 10), 1536 true, 1537 false); 1538 SetLayerPropertiesForTesting(great_grand_child.get(), 1539 identity_matrix, 1540 gfx::Point3F(), 1541 gfx::PointF(), 1542 gfx::Size(10, 10), 1543 true, 1544 false); 1545 SetLayerPropertiesForTesting(leaf_node1.get(), 1546 identity_matrix, 1547 gfx::Point3F(), 1548 gfx::PointF(), 1549 gfx::Size(500, 500), 1550 true, 1551 false); 1552 SetLayerPropertiesForTesting(leaf_node2.get(), 1553 identity_matrix, 1554 gfx::Point3F(), 1555 gfx::PointF(), 1556 gfx::Size(20, 20), 1557 true, 1558 false); 1559 1560 child->SetMasksToBounds(true); 1561 child->SetOpacity(0.4f); 1562 child->SetForceRenderSurface(true); 1563 grand_child->SetOpacity(0.5f); 1564 great_grand_child->SetOpacity(0.4f); 1565 1566 RenderSurfaceLayerList render_surface_layer_list; 1567 LayerTreeHostCommon::CalcDrawPropsMainInputsForTesting inputs( 1568 parent.get(), parent->bounds(), &render_surface_layer_list); 1569 inputs.can_adjust_raster_scales = true; 1570 LayerTreeHostCommon::CalculateDrawProperties(&inputs); 1571 1572 ASSERT_EQ(2U, render_surface_layer_list.size()); 1573 EXPECT_EQ(parent->id(), render_surface_layer_list.at(0)->id()); 1574 EXPECT_EQ(child->id(), render_surface_layer_list.at(1)->id()); 1575 } 1576 1577 TEST_F(LayerTreeHostCommonTest, ClipRectCullsSurfaceWithoutVisibleContent) { 1578 // When a render surface has a clip rect, it is used to clip the content rect 1579 // of the surface. When the render surface is animating its transforms, then 1580 // the content rect's position in the clip rect is not defined on the main 1581 // thread, and its content rect should not be clipped. 1582 1583 // The test tree is set up as follows: 1584 // - parent is a container layer that masksToBounds=true to cause clipping. 1585 // - child is a render surface, which has a clip rect set to the bounds of 1586 // the parent. 1587 // - grand_child is a render surface, and the only visible content in child. 1588 // It is positioned outside of the clip rect from parent. 1589 1590 // In this configuration, grand_child should be outside the clipped 1591 // content rect of the child, making grand_child not appear in the 1592 // render_surface_layer_list. However, when we place an animation on the 1593 // child, this clipping should be avoided and we should keep the grand_child 1594 // in the render_surface_layer_list. 1595 1596 const gfx::Transform identity_matrix; 1597 scoped_refptr<Layer> parent = Layer::Create(); 1598 scoped_refptr<Layer> child = Layer::Create(); 1599 scoped_refptr<Layer> grand_child = Layer::Create(); 1600 scoped_refptr<LayerWithForcedDrawsContent> leaf_node = 1601 make_scoped_refptr(new LayerWithForcedDrawsContent()); 1602 parent->AddChild(child); 1603 child->AddChild(grand_child); 1604 grand_child->AddChild(leaf_node); 1605 1606 scoped_ptr<FakeLayerTreeHost> host = FakeLayerTreeHost::Create(); 1607 host->SetRootLayer(parent); 1608 1609 SetLayerPropertiesForTesting(parent.get(), 1610 identity_matrix, 1611 gfx::Point3F(), 1612 gfx::PointF(), 1613 gfx::Size(100, 100), 1614 true, 1615 false); 1616 SetLayerPropertiesForTesting(child.get(), 1617 identity_matrix, 1618 gfx::Point3F(), 1619 gfx::PointF(), 1620 gfx::Size(20, 20), 1621 true, 1622 false); 1623 SetLayerPropertiesForTesting(grand_child.get(), 1624 identity_matrix, 1625 gfx::Point3F(), 1626 gfx::PointF(200.f, 200.f), 1627 gfx::Size(10, 10), 1628 true, 1629 false); 1630 SetLayerPropertiesForTesting(leaf_node.get(), 1631 identity_matrix, 1632 gfx::Point3F(), 1633 gfx::PointF(), 1634 gfx::Size(10, 10), 1635 true, 1636 false); 1637 1638 parent->SetMasksToBounds(true); 1639 child->SetOpacity(0.4f); 1640 child->SetForceRenderSurface(true); 1641 grand_child->SetOpacity(0.4f); 1642 grand_child->SetForceRenderSurface(true); 1643 1644 { 1645 RenderSurfaceLayerList render_surface_layer_list; 1646 LayerTreeHostCommon::CalcDrawPropsMainInputsForTesting inputs( 1647 parent.get(), parent->bounds(), &render_surface_layer_list); 1648 inputs.can_adjust_raster_scales = true; 1649 LayerTreeHostCommon::CalculateDrawProperties(&inputs); 1650 1651 // Without an animation, we should cull child and grand_child from the 1652 // render_surface_layer_list. 1653 ASSERT_EQ(1U, render_surface_layer_list.size()); 1654 EXPECT_EQ(parent->id(), render_surface_layer_list.at(0)->id()); 1655 } 1656 1657 // Now put an animating transform on child. 1658 AddAnimatedTransformToController( 1659 child->layer_animation_controller(), 10.0, 30, 0); 1660 1661 { 1662 RenderSurfaceLayerList render_surface_layer_list; 1663 LayerTreeHostCommon::CalcDrawPropsMainInputsForTesting inputs( 1664 parent.get(), parent->bounds(), &render_surface_layer_list); 1665 inputs.can_adjust_raster_scales = true; 1666 LayerTreeHostCommon::CalculateDrawProperties(&inputs); 1667 1668 // With an animating transform, we should keep child and grand_child in the 1669 // render_surface_layer_list. 1670 ASSERT_EQ(3U, render_surface_layer_list.size()); 1671 EXPECT_EQ(parent->id(), render_surface_layer_list.at(0)->id()); 1672 EXPECT_EQ(child->id(), render_surface_layer_list.at(1)->id()); 1673 EXPECT_EQ(grand_child->id(), render_surface_layer_list.at(2)->id()); 1674 } 1675 } 1676 1677 TEST_F(LayerTreeHostCommonTest, IsClippedIsSetCorrectly) { 1678 // Layer's IsClipped() property is set to true when: 1679 // - the layer clips its subtree, e.g. masks to bounds, 1680 // - the layer is clipped by an ancestor that contributes to the same 1681 // render target, 1682 // - a surface is clipped by an ancestor that contributes to the same 1683 // render target. 1684 // 1685 // In particular, for a layer that owns a render surface: 1686 // - the render surface inherits any clip from ancestors, and does NOT 1687 // pass that clipped status to the layer itself. 1688 // - but if the layer itself masks to bounds, it is considered clipped 1689 // and propagates the clip to the subtree. 1690 1691 const gfx::Transform identity_matrix; 1692 scoped_refptr<Layer> root = Layer::Create(); 1693 scoped_refptr<Layer> parent = Layer::Create(); 1694 scoped_refptr<Layer> child1 = Layer::Create(); 1695 scoped_refptr<Layer> child2 = Layer::Create(); 1696 scoped_refptr<Layer> grand_child = Layer::Create(); 1697 scoped_refptr<LayerWithForcedDrawsContent> leaf_node1 = 1698 make_scoped_refptr(new LayerWithForcedDrawsContent()); 1699 scoped_refptr<LayerWithForcedDrawsContent> leaf_node2 = 1700 make_scoped_refptr(new LayerWithForcedDrawsContent()); 1701 root->AddChild(parent); 1702 parent->AddChild(child1); 1703 parent->AddChild(child2); 1704 child1->AddChild(grand_child); 1705 child2->AddChild(leaf_node2); 1706 grand_child->AddChild(leaf_node1); 1707 1708 scoped_ptr<FakeLayerTreeHost> host = FakeLayerTreeHost::Create(); 1709 host->SetRootLayer(root); 1710 1711 child2->SetForceRenderSurface(true); 1712 1713 SetLayerPropertiesForTesting(root.get(), 1714 identity_matrix, 1715 gfx::Point3F(), 1716 gfx::PointF(), 1717 gfx::Size(100, 100), 1718 true, 1719 false); 1720 SetLayerPropertiesForTesting(parent.get(), 1721 identity_matrix, 1722 gfx::Point3F(), 1723 gfx::PointF(), 1724 gfx::Size(100, 100), 1725 true, 1726 false); 1727 SetLayerPropertiesForTesting(child1.get(), 1728 identity_matrix, 1729 gfx::Point3F(), 1730 gfx::PointF(), 1731 gfx::Size(100, 100), 1732 true, 1733 false); 1734 SetLayerPropertiesForTesting(child2.get(), 1735 identity_matrix, 1736 gfx::Point3F(), 1737 gfx::PointF(), 1738 gfx::Size(100, 100), 1739 true, 1740 false); 1741 SetLayerPropertiesForTesting(grand_child.get(), 1742 identity_matrix, 1743 gfx::Point3F(), 1744 gfx::PointF(), 1745 gfx::Size(100, 100), 1746 true, 1747 false); 1748 SetLayerPropertiesForTesting(leaf_node1.get(), 1749 identity_matrix, 1750 gfx::Point3F(), 1751 gfx::PointF(), 1752 gfx::Size(100, 100), 1753 true, 1754 false); 1755 SetLayerPropertiesForTesting(leaf_node2.get(), 1756 identity_matrix, 1757 gfx::Point3F(), 1758 gfx::PointF(), 1759 gfx::Size(100, 100), 1760 true, 1761 false); 1762 1763 // Case 1: nothing is clipped except the root render surface. 1764 { 1765 RenderSurfaceLayerList render_surface_layer_list; 1766 LayerTreeHostCommon::CalcDrawPropsMainInputsForTesting inputs( 1767 root.get(), parent->bounds(), &render_surface_layer_list); 1768 inputs.can_adjust_raster_scales = true; 1769 LayerTreeHostCommon::CalculateDrawProperties(&inputs); 1770 1771 ASSERT_TRUE(root->render_surface()); 1772 ASSERT_TRUE(child2->render_surface()); 1773 1774 EXPECT_FALSE(root->is_clipped()); 1775 EXPECT_TRUE(root->render_surface()->is_clipped()); 1776 EXPECT_FALSE(parent->is_clipped()); 1777 EXPECT_FALSE(child1->is_clipped()); 1778 EXPECT_FALSE(child2->is_clipped()); 1779 EXPECT_FALSE(child2->render_surface()->is_clipped()); 1780 EXPECT_FALSE(grand_child->is_clipped()); 1781 EXPECT_FALSE(leaf_node1->is_clipped()); 1782 EXPECT_FALSE(leaf_node2->is_clipped()); 1783 } 1784 1785 // Case 2: parent masksToBounds, so the parent, child1, and child2's 1786 // surface are clipped. But layers that contribute to child2's surface are 1787 // not clipped explicitly because child2's surface already accounts for 1788 // that clip. 1789 { 1790 RenderSurfaceLayerList render_surface_layer_list; 1791 parent->SetMasksToBounds(true); 1792 LayerTreeHostCommon::CalcDrawPropsMainInputsForTesting inputs( 1793 root.get(), parent->bounds(), &render_surface_layer_list); 1794 inputs.can_adjust_raster_scales = true; 1795 LayerTreeHostCommon::CalculateDrawProperties(&inputs); 1796 1797 ASSERT_TRUE(root->render_surface()); 1798 ASSERT_TRUE(child2->render_surface()); 1799 1800 EXPECT_FALSE(root->is_clipped()); 1801 EXPECT_TRUE(root->render_surface()->is_clipped()); 1802 EXPECT_TRUE(parent->is_clipped()); 1803 EXPECT_TRUE(child1->is_clipped()); 1804 EXPECT_FALSE(child2->is_clipped()); 1805 EXPECT_TRUE(child2->render_surface()->is_clipped()); 1806 EXPECT_TRUE(grand_child->is_clipped()); 1807 EXPECT_TRUE(leaf_node1->is_clipped()); 1808 EXPECT_FALSE(leaf_node2->is_clipped()); 1809 } 1810 1811 // Case 3: child2 masksToBounds. The layer and subtree are clipped, and 1812 // child2's render surface is not clipped. 1813 { 1814 RenderSurfaceLayerList render_surface_layer_list; 1815 parent->SetMasksToBounds(false); 1816 child2->SetMasksToBounds(true); 1817 LayerTreeHostCommon::CalcDrawPropsMainInputsForTesting inputs( 1818 root.get(), parent->bounds(), &render_surface_layer_list); 1819 inputs.can_adjust_raster_scales = true; 1820 LayerTreeHostCommon::CalculateDrawProperties(&inputs); 1821 1822 ASSERT_TRUE(root->render_surface()); 1823 ASSERT_TRUE(child2->render_surface()); 1824 1825 EXPECT_FALSE(root->is_clipped()); 1826 EXPECT_TRUE(root->render_surface()->is_clipped()); 1827 EXPECT_FALSE(parent->is_clipped()); 1828 EXPECT_FALSE(child1->is_clipped()); 1829 EXPECT_TRUE(child2->is_clipped()); 1830 EXPECT_FALSE(child2->render_surface()->is_clipped()); 1831 EXPECT_FALSE(grand_child->is_clipped()); 1832 EXPECT_FALSE(leaf_node1->is_clipped()); 1833 EXPECT_TRUE(leaf_node2->is_clipped()); 1834 } 1835 } 1836 1837 TEST_F(LayerTreeHostCommonTest, DrawableContentRectForLayers) { 1838 // Verify that layers get the appropriate DrawableContentRect when their 1839 // parent masksToBounds is true. 1840 // 1841 // grand_child1 - completely inside the region; DrawableContentRect should 1842 // be the layer rect expressed in target space. 1843 // grand_child2 - partially clipped but NOT masksToBounds; the clip rect 1844 // will be the intersection of layer bounds and the mask region. 1845 // grand_child3 - partially clipped and masksToBounds; the 1846 // DrawableContentRect will still be the intersection of layer bounds and 1847 // the mask region. 1848 // grand_child4 - outside parent's clip rect; the DrawableContentRect should 1849 // be empty. 1850 // 1851 1852 const gfx::Transform identity_matrix; 1853 scoped_refptr<Layer> parent = Layer::Create(); 1854 scoped_refptr<Layer> child = Layer::Create(); 1855 scoped_refptr<Layer> grand_child1 = Layer::Create(); 1856 scoped_refptr<Layer> grand_child2 = Layer::Create(); 1857 scoped_refptr<Layer> grand_child3 = Layer::Create(); 1858 scoped_refptr<Layer> grand_child4 = Layer::Create(); 1859 1860 parent->AddChild(child); 1861 child->AddChild(grand_child1); 1862 child->AddChild(grand_child2); 1863 child->AddChild(grand_child3); 1864 child->AddChild(grand_child4); 1865 1866 scoped_ptr<FakeLayerTreeHost> host = FakeLayerTreeHost::Create(); 1867 host->SetRootLayer(parent); 1868 1869 SetLayerPropertiesForTesting(parent.get(), 1870 identity_matrix, 1871 gfx::Point3F(), 1872 gfx::PointF(), 1873 gfx::Size(500, 500), 1874 true, 1875 false); 1876 SetLayerPropertiesForTesting(child.get(), 1877 identity_matrix, 1878 gfx::Point3F(), 1879 gfx::PointF(), 1880 gfx::Size(20, 20), 1881 true, 1882 false); 1883 SetLayerPropertiesForTesting(grand_child1.get(), 1884 identity_matrix, 1885 gfx::Point3F(), 1886 gfx::PointF(5.f, 5.f), 1887 gfx::Size(10, 10), 1888 true, 1889 false); 1890 SetLayerPropertiesForTesting(grand_child2.get(), 1891 identity_matrix, 1892 gfx::Point3F(), 1893 gfx::PointF(15.f, 15.f), 1894 gfx::Size(10, 10), 1895 true, 1896 false); 1897 SetLayerPropertiesForTesting(grand_child3.get(), 1898 identity_matrix, 1899 gfx::Point3F(), 1900 gfx::PointF(15.f, 15.f), 1901 gfx::Size(10, 10), 1902 true, 1903 false); 1904 SetLayerPropertiesForTesting(grand_child4.get(), 1905 identity_matrix, 1906 gfx::Point3F(), 1907 gfx::PointF(45.f, 45.f), 1908 gfx::Size(10, 10), 1909 true, 1910 false); 1911 1912 child->SetMasksToBounds(true); 1913 grand_child3->SetMasksToBounds(true); 1914 1915 // Force everyone to be a render surface. 1916 child->SetOpacity(0.4f); 1917 grand_child1->SetOpacity(0.5f); 1918 grand_child2->SetOpacity(0.5f); 1919 grand_child3->SetOpacity(0.5f); 1920 grand_child4->SetOpacity(0.5f); 1921 1922 RenderSurfaceLayerList render_surface_layer_list; 1923 LayerTreeHostCommon::CalcDrawPropsMainInputsForTesting inputs( 1924 parent.get(), parent->bounds(), &render_surface_layer_list); 1925 inputs.can_adjust_raster_scales = true; 1926 LayerTreeHostCommon::CalculateDrawProperties(&inputs); 1927 1928 EXPECT_RECT_EQ(gfx::Rect(5, 5, 10, 10), 1929 grand_child1->drawable_content_rect()); 1930 EXPECT_RECT_EQ(gfx::Rect(15, 15, 5, 5), 1931 grand_child3->drawable_content_rect()); 1932 EXPECT_RECT_EQ(gfx::Rect(15, 15, 5, 5), 1933 grand_child3->drawable_content_rect()); 1934 EXPECT_TRUE(grand_child4->drawable_content_rect().IsEmpty()); 1935 } 1936 1937 TEST_F(LayerTreeHostCommonTest, ClipRectIsPropagatedCorrectlyToSurfaces) { 1938 // Verify that render surfaces (and their layers) get the appropriate 1939 // clip rects when their parent masksToBounds is true. 1940 // 1941 // Layers that own render surfaces (at least for now) do not inherit any 1942 // clipping; instead the surface will enforce the clip for the entire subtree. 1943 // They may still have a clip rect of their own layer bounds, however, if 1944 // masksToBounds was true. 1945 const gfx::Transform identity_matrix; 1946 scoped_refptr<Layer> parent = Layer::Create(); 1947 scoped_refptr<Layer> child = Layer::Create(); 1948 scoped_refptr<Layer> grand_child1 = Layer::Create(); 1949 scoped_refptr<Layer> grand_child2 = Layer::Create(); 1950 scoped_refptr<Layer> grand_child3 = Layer::Create(); 1951 scoped_refptr<Layer> grand_child4 = Layer::Create(); 1952 scoped_refptr<LayerWithForcedDrawsContent> leaf_node1 = 1953 make_scoped_refptr(new LayerWithForcedDrawsContent()); 1954 scoped_refptr<LayerWithForcedDrawsContent> leaf_node2 = 1955 make_scoped_refptr(new LayerWithForcedDrawsContent()); 1956 scoped_refptr<LayerWithForcedDrawsContent> leaf_node3 = 1957 make_scoped_refptr(new LayerWithForcedDrawsContent()); 1958 scoped_refptr<LayerWithForcedDrawsContent> leaf_node4 = 1959 make_scoped_refptr(new LayerWithForcedDrawsContent()); 1960 1961 parent->AddChild(child); 1962 child->AddChild(grand_child1); 1963 child->AddChild(grand_child2); 1964 child->AddChild(grand_child3); 1965 child->AddChild(grand_child4); 1966 1967 scoped_ptr<FakeLayerTreeHost> host = FakeLayerTreeHost::Create(); 1968 host->SetRootLayer(parent); 1969 1970 // the leaf nodes ensure that these grand_children become render surfaces for 1971 // this test. 1972 grand_child1->AddChild(leaf_node1); 1973 grand_child2->AddChild(leaf_node2); 1974 grand_child3->AddChild(leaf_node3); 1975 grand_child4->AddChild(leaf_node4); 1976 1977 SetLayerPropertiesForTesting(parent.get(), 1978 identity_matrix, 1979 gfx::Point3F(), 1980 gfx::PointF(), 1981 gfx::Size(500, 500), 1982 true, 1983 false); 1984 SetLayerPropertiesForTesting(child.get(), 1985 identity_matrix, 1986 gfx::Point3F(), 1987 gfx::PointF(), 1988 gfx::Size(20, 20), 1989 true, 1990 false); 1991 SetLayerPropertiesForTesting(grand_child1.get(), 1992 identity_matrix, 1993 gfx::Point3F(), 1994 gfx::PointF(5.f, 5.f), 1995 gfx::Size(10, 10), 1996 true, 1997 false); 1998 SetLayerPropertiesForTesting(grand_child2.get(), 1999 identity_matrix, 2000 gfx::Point3F(), 2001 gfx::PointF(15.f, 15.f), 2002 gfx::Size(10, 10), 2003 true, 2004 false); 2005 SetLayerPropertiesForTesting(grand_child3.get(), 2006 identity_matrix, 2007 gfx::Point3F(), 2008 gfx::PointF(15.f, 15.f), 2009 gfx::Size(10, 10), 2010 true, 2011 false); 2012 SetLayerPropertiesForTesting(grand_child4.get(), 2013 identity_matrix, 2014 gfx::Point3F(), 2015 gfx::PointF(45.f, 45.f), 2016 gfx::Size(10, 10), 2017 true, 2018 false); 2019 SetLayerPropertiesForTesting(leaf_node1.get(), 2020 identity_matrix, 2021 gfx::Point3F(), 2022 gfx::PointF(), 2023 gfx::Size(10, 10), 2024 true, 2025 false); 2026 SetLayerPropertiesForTesting(leaf_node2.get(), 2027 identity_matrix, 2028 gfx::Point3F(), 2029 gfx::PointF(), 2030 gfx::Size(10, 10), 2031 true, 2032 false); 2033 SetLayerPropertiesForTesting(leaf_node3.get(), 2034 identity_matrix, 2035 gfx::Point3F(), 2036 gfx::PointF(), 2037 gfx::Size(10, 10), 2038 true, 2039 false); 2040 SetLayerPropertiesForTesting(leaf_node4.get(), 2041 identity_matrix, 2042 gfx::Point3F(), 2043 gfx::PointF(), 2044 gfx::Size(10, 10), 2045 true, 2046 false); 2047 2048 child->SetMasksToBounds(true); 2049 grand_child3->SetMasksToBounds(true); 2050 grand_child4->SetMasksToBounds(true); 2051 2052 // Force everyone to be a render surface. 2053 child->SetOpacity(0.4f); 2054 child->SetForceRenderSurface(true); 2055 grand_child1->SetOpacity(0.5f); 2056 grand_child1->SetForceRenderSurface(true); 2057 grand_child2->SetOpacity(0.5f); 2058 grand_child2->SetForceRenderSurface(true); 2059 grand_child3->SetOpacity(0.5f); 2060 grand_child3->SetForceRenderSurface(true); 2061 grand_child4->SetOpacity(0.5f); 2062 grand_child4->SetForceRenderSurface(true); 2063 2064 RenderSurfaceLayerList render_surface_layer_list; 2065 LayerTreeHostCommon::CalcDrawPropsMainInputsForTesting inputs( 2066 parent.get(), parent->bounds(), &render_surface_layer_list); 2067 inputs.can_adjust_raster_scales = true; 2068 LayerTreeHostCommon::CalculateDrawProperties(&inputs); 2069 ASSERT_TRUE(grand_child1->render_surface()); 2070 ASSERT_TRUE(grand_child2->render_surface()); 2071 ASSERT_TRUE(grand_child3->render_surface()); 2072 2073 // Surfaces are clipped by their parent, but un-affected by the owning layer's 2074 // masksToBounds. 2075 EXPECT_RECT_EQ(gfx::Rect(0, 0, 20, 20), 2076 grand_child1->render_surface()->clip_rect()); 2077 EXPECT_RECT_EQ(gfx::Rect(0, 0, 20, 20), 2078 grand_child2->render_surface()->clip_rect()); 2079 EXPECT_RECT_EQ(gfx::Rect(0, 0, 20, 20), 2080 grand_child3->render_surface()->clip_rect()); 2081 } 2082 2083 TEST_F(LayerTreeHostCommonTest, AnimationsForRenderSurfaceHierarchy) { 2084 scoped_refptr<Layer> parent = Layer::Create(); 2085 scoped_refptr<Layer> render_surface1 = Layer::Create(); 2086 scoped_refptr<Layer> render_surface2 = Layer::Create(); 2087 scoped_refptr<Layer> child_of_root = Layer::Create(); 2088 scoped_refptr<Layer> child_of_rs1 = Layer::Create(); 2089 scoped_refptr<Layer> child_of_rs2 = Layer::Create(); 2090 scoped_refptr<Layer> grand_child_of_root = Layer::Create(); 2091 scoped_refptr<LayerWithForcedDrawsContent> grand_child_of_rs1 = 2092 make_scoped_refptr(new LayerWithForcedDrawsContent()); 2093 scoped_refptr<LayerWithForcedDrawsContent> grand_child_of_rs2 = 2094 make_scoped_refptr(new LayerWithForcedDrawsContent()); 2095 parent->AddChild(render_surface1); 2096 parent->AddChild(child_of_root); 2097 render_surface1->AddChild(child_of_rs1); 2098 render_surface1->AddChild(render_surface2); 2099 render_surface2->AddChild(child_of_rs2); 2100 child_of_root->AddChild(grand_child_of_root); 2101 child_of_rs1->AddChild(grand_child_of_rs1); 2102 child_of_rs2->AddChild(grand_child_of_rs2); 2103 2104 scoped_ptr<FakeLayerTreeHost> host = FakeLayerTreeHost::Create(); 2105 host->SetRootLayer(parent); 2106 2107 // Make our render surfaces. 2108 render_surface1->SetForceRenderSurface(true); 2109 render_surface2->SetForceRenderSurface(true); 2110 2111 gfx::Transform layer_transform; 2112 layer_transform.Translate(1.0, 1.0); 2113 2114 SetLayerPropertiesForTesting(parent.get(), 2115 layer_transform, 2116 gfx::Point3F(0.25f, 0.f, 0.f), 2117 gfx::PointF(2.5f, 0.f), 2118 gfx::Size(10, 10), 2119 true, 2120 false); 2121 SetLayerPropertiesForTesting(render_surface1.get(), 2122 layer_transform, 2123 gfx::Point3F(0.25f, 0.f, 0.f), 2124 gfx::PointF(2.5f, 0.f), 2125 gfx::Size(10, 10), 2126 true, 2127 false); 2128 SetLayerPropertiesForTesting(render_surface2.get(), 2129 layer_transform, 2130 gfx::Point3F(0.25f, 0.f, 0.f), 2131 gfx::PointF(2.5f, 0.f), 2132 gfx::Size(10, 10), 2133 true, 2134 false); 2135 SetLayerPropertiesForTesting(child_of_root.get(), 2136 layer_transform, 2137 gfx::Point3F(0.25f, 0.f, 0.f), 2138 gfx::PointF(2.5f, 0.f), 2139 gfx::Size(10, 10), 2140 true, 2141 false); 2142 SetLayerPropertiesForTesting(child_of_rs1.get(), 2143 layer_transform, 2144 gfx::Point3F(0.25f, 0.f, 0.f), 2145 gfx::PointF(2.5f, 0.f), 2146 gfx::Size(10, 10), 2147 true, 2148 false); 2149 SetLayerPropertiesForTesting(child_of_rs2.get(), 2150 layer_transform, 2151 gfx::Point3F(0.25f, 0.f, 0.f), 2152 gfx::PointF(2.5f, 0.f), 2153 gfx::Size(10, 10), 2154 true, 2155 false); 2156 SetLayerPropertiesForTesting(grand_child_of_root.get(), 2157 layer_transform, 2158 gfx::Point3F(0.25f, 0.f, 0.f), 2159 gfx::PointF(2.5f, 0.f), 2160 gfx::Size(10, 10), 2161 true, 2162 false); 2163 SetLayerPropertiesForTesting(grand_child_of_rs1.get(), 2164 layer_transform, 2165 gfx::Point3F(0.25f, 0.f, 0.f), 2166 gfx::PointF(2.5f, 0.f), 2167 gfx::Size(10, 10), 2168 true, 2169 false); 2170 SetLayerPropertiesForTesting(grand_child_of_rs2.get(), 2171 layer_transform, 2172 gfx::Point3F(0.25f, 0.f, 0.f), 2173 gfx::PointF(2.5f, 0.f), 2174 gfx::Size(10, 10), 2175 true, 2176 false); 2177 2178 // Put an animated opacity on the render surface. 2179 AddOpacityTransitionToController( 2180 render_surface1->layer_animation_controller(), 10.0, 1.f, 0.f, false); 2181 2182 // Also put an animated opacity on a layer without descendants. 2183 AddOpacityTransitionToController( 2184 grand_child_of_root->layer_animation_controller(), 10.0, 1.f, 0.f, false); 2185 2186 // Put a transform animation on the render surface. 2187 AddAnimatedTransformToController( 2188 render_surface2->layer_animation_controller(), 10.0, 30, 0); 2189 2190 // Also put transform animations on grand_child_of_root, and 2191 // grand_child_of_rs2 2192 AddAnimatedTransformToController( 2193 grand_child_of_root->layer_animation_controller(), 10.0, 30, 0); 2194 AddAnimatedTransformToController( 2195 grand_child_of_rs2->layer_animation_controller(), 10.0, 30, 0); 2196 2197 ExecuteCalculateDrawProperties(parent.get()); 2198 2199 // Only layers that are associated with render surfaces should have an actual 2200 // RenderSurface() value. 2201 ASSERT_TRUE(parent->render_surface()); 2202 ASSERT_FALSE(child_of_root->render_surface()); 2203 ASSERT_FALSE(grand_child_of_root->render_surface()); 2204 2205 ASSERT_TRUE(render_surface1->render_surface()); 2206 ASSERT_FALSE(child_of_rs1->render_surface()); 2207 ASSERT_FALSE(grand_child_of_rs1->render_surface()); 2208 2209 ASSERT_TRUE(render_surface2->render_surface()); 2210 ASSERT_FALSE(child_of_rs2->render_surface()); 2211 ASSERT_FALSE(grand_child_of_rs2->render_surface()); 2212 2213 // Verify all render target accessors 2214 EXPECT_EQ(parent, parent->render_target()); 2215 EXPECT_EQ(parent, child_of_root->render_target()); 2216 EXPECT_EQ(parent, grand_child_of_root->render_target()); 2217 2218 EXPECT_EQ(render_surface1, render_surface1->render_target()); 2219 EXPECT_EQ(render_surface1, child_of_rs1->render_target()); 2220 EXPECT_EQ(render_surface1, grand_child_of_rs1->render_target()); 2221 2222 EXPECT_EQ(render_surface2, render_surface2->render_target()); 2223 EXPECT_EQ(render_surface2, child_of_rs2->render_target()); 2224 EXPECT_EQ(render_surface2, grand_child_of_rs2->render_target()); 2225 2226 // Verify draw_opacity_is_animating values 2227 EXPECT_FALSE(parent->draw_opacity_is_animating()); 2228 EXPECT_FALSE(child_of_root->draw_opacity_is_animating()); 2229 EXPECT_TRUE(grand_child_of_root->draw_opacity_is_animating()); 2230 EXPECT_FALSE(render_surface1->draw_opacity_is_animating()); 2231 EXPECT_TRUE(render_surface1->render_surface()->draw_opacity_is_animating()); 2232 EXPECT_FALSE(child_of_rs1->draw_opacity_is_animating()); 2233 EXPECT_FALSE(grand_child_of_rs1->draw_opacity_is_animating()); 2234 EXPECT_FALSE(render_surface2->draw_opacity_is_animating()); 2235 EXPECT_FALSE(render_surface2->render_surface()->draw_opacity_is_animating()); 2236 EXPECT_FALSE(child_of_rs2->draw_opacity_is_animating()); 2237 EXPECT_FALSE(grand_child_of_rs2->draw_opacity_is_animating()); 2238 2239 // Verify draw_transform_is_animating values 2240 EXPECT_FALSE(parent->draw_transform_is_animating()); 2241 EXPECT_FALSE(child_of_root->draw_transform_is_animating()); 2242 EXPECT_TRUE(grand_child_of_root->draw_transform_is_animating()); 2243 EXPECT_FALSE(render_surface1->draw_transform_is_animating()); 2244 EXPECT_FALSE(render_surface1->render_surface() 2245 ->target_surface_transforms_are_animating()); 2246 EXPECT_FALSE(child_of_rs1->draw_transform_is_animating()); 2247 EXPECT_FALSE(grand_child_of_rs1->draw_transform_is_animating()); 2248 EXPECT_FALSE(render_surface2->draw_transform_is_animating()); 2249 EXPECT_TRUE(render_surface2->render_surface() 2250 ->target_surface_transforms_are_animating()); 2251 EXPECT_FALSE(child_of_rs2->draw_transform_is_animating()); 2252 EXPECT_TRUE(grand_child_of_rs2->draw_transform_is_animating()); 2253 2254 // Verify screen_space_transform_is_animating values 2255 EXPECT_FALSE(parent->screen_space_transform_is_animating()); 2256 EXPECT_FALSE(child_of_root->screen_space_transform_is_animating()); 2257 EXPECT_TRUE(grand_child_of_root->screen_space_transform_is_animating()); 2258 EXPECT_FALSE(render_surface1->screen_space_transform_is_animating()); 2259 EXPECT_FALSE(render_surface1->render_surface() 2260 ->screen_space_transforms_are_animating()); 2261 EXPECT_FALSE(child_of_rs1->screen_space_transform_is_animating()); 2262 EXPECT_FALSE(grand_child_of_rs1->screen_space_transform_is_animating()); 2263 EXPECT_TRUE(render_surface2->screen_space_transform_is_animating()); 2264 EXPECT_TRUE(render_surface2->render_surface() 2265 ->screen_space_transforms_are_animating()); 2266 EXPECT_TRUE(child_of_rs2->screen_space_transform_is_animating()); 2267 EXPECT_TRUE(grand_child_of_rs2->screen_space_transform_is_animating()); 2268 2269 // Sanity check. If these fail there is probably a bug in the test itself. 2270 // It is expected that we correctly set up transforms so that the y-component 2271 // of the screen-space transform encodes the "depth" of the layer in the tree. 2272 EXPECT_FLOAT_EQ(1.0, parent->screen_space_transform().matrix().get(1, 3)); 2273 EXPECT_FLOAT_EQ(2.0, 2274 child_of_root->screen_space_transform().matrix().get(1, 3)); 2275 EXPECT_FLOAT_EQ( 2276 3.0, grand_child_of_root->screen_space_transform().matrix().get(1, 3)); 2277 2278 EXPECT_FLOAT_EQ(2.0, 2279 render_surface1->screen_space_transform().matrix().get(1, 3)); 2280 EXPECT_FLOAT_EQ(3.0, 2281 child_of_rs1->screen_space_transform().matrix().get(1, 3)); 2282 EXPECT_FLOAT_EQ( 2283 4.0, grand_child_of_rs1->screen_space_transform().matrix().get(1, 3)); 2284 2285 EXPECT_FLOAT_EQ(3.0, 2286 render_surface2->screen_space_transform().matrix().get(1, 3)); 2287 EXPECT_FLOAT_EQ(4.0, 2288 child_of_rs2->screen_space_transform().matrix().get(1, 3)); 2289 EXPECT_FLOAT_EQ( 2290 5.0, grand_child_of_rs2->screen_space_transform().matrix().get(1, 3)); 2291 } 2292 2293 TEST_F(LayerTreeHostCommonTest, VisibleRectForIdentityTransform) { 2294 // Test the calculateVisibleRect() function works correctly for identity 2295 // transforms. 2296 2297 gfx::Rect target_surface_rect = gfx::Rect(0, 0, 100, 100); 2298 gfx::Transform layer_to_surface_transform; 2299 2300 // Case 1: Layer is contained within the surface. 2301 gfx::Rect layer_content_rect = gfx::Rect(10, 10, 30, 30); 2302 gfx::Rect expected = gfx::Rect(10, 10, 30, 30); 2303 gfx::Rect actual = LayerTreeHostCommon::CalculateVisibleRect( 2304 target_surface_rect, layer_content_rect, layer_to_surface_transform); 2305 EXPECT_RECT_EQ(expected, actual); 2306 2307 // Case 2: Layer is outside the surface rect. 2308 layer_content_rect = gfx::Rect(120, 120, 30, 30); 2309 actual = LayerTreeHostCommon::CalculateVisibleRect( 2310 target_surface_rect, layer_content_rect, layer_to_surface_transform); 2311 EXPECT_TRUE(actual.IsEmpty()); 2312 2313 // Case 3: Layer is partially overlapping the surface rect. 2314 layer_content_rect = gfx::Rect(80, 80, 30, 30); 2315 expected = gfx::Rect(80, 80, 20, 20); 2316 actual = LayerTreeHostCommon::CalculateVisibleRect( 2317 target_surface_rect, layer_content_rect, layer_to_surface_transform); 2318 EXPECT_RECT_EQ(expected, actual); 2319 } 2320 2321 TEST_F(LayerTreeHostCommonTest, VisibleRectForTranslations) { 2322 // Test the calculateVisibleRect() function works correctly for scaling 2323 // transforms. 2324 2325 gfx::Rect target_surface_rect = gfx::Rect(0, 0, 100, 100); 2326 gfx::Rect layer_content_rect = gfx::Rect(0, 0, 30, 30); 2327 gfx::Transform layer_to_surface_transform; 2328 2329 // Case 1: Layer is contained within the surface. 2330 layer_to_surface_transform.MakeIdentity(); 2331 layer_to_surface_transform.Translate(10.0, 10.0); 2332 gfx::Rect expected = gfx::Rect(0, 0, 30, 30); 2333 gfx::Rect actual = LayerTreeHostCommon::CalculateVisibleRect( 2334 target_surface_rect, layer_content_rect, layer_to_surface_transform); 2335 EXPECT_RECT_EQ(expected, actual); 2336 2337 // Case 2: Layer is outside the surface rect. 2338 layer_to_surface_transform.MakeIdentity(); 2339 layer_to_surface_transform.Translate(120.0, 120.0); 2340 actual = LayerTreeHostCommon::CalculateVisibleRect( 2341 target_surface_rect, layer_content_rect, layer_to_surface_transform); 2342 EXPECT_TRUE(actual.IsEmpty()); 2343 2344 // Case 3: Layer is partially overlapping the surface rect. 2345 layer_to_surface_transform.MakeIdentity(); 2346 layer_to_surface_transform.Translate(80.0, 80.0); 2347 expected = gfx::Rect(0, 0, 20, 20); 2348 actual = LayerTreeHostCommon::CalculateVisibleRect( 2349 target_surface_rect, layer_content_rect, layer_to_surface_transform); 2350 EXPECT_RECT_EQ(expected, actual); 2351 } 2352 2353 TEST_F(LayerTreeHostCommonTest, VisibleRectFor2DRotations) { 2354 // Test the calculateVisibleRect() function works correctly for rotations 2355 // about z-axis (i.e. 2D rotations). Remember that calculateVisibleRect() 2356 // should return the g in the layer's space. 2357 2358 gfx::Rect target_surface_rect = gfx::Rect(0, 0, 100, 100); 2359 gfx::Rect layer_content_rect = gfx::Rect(0, 0, 30, 30); 2360 gfx::Transform layer_to_surface_transform; 2361 2362 // Case 1: Layer is contained within the surface. 2363 layer_to_surface_transform.MakeIdentity(); 2364 layer_to_surface_transform.Translate(50.0, 50.0); 2365 layer_to_surface_transform.Rotate(45.0); 2366 gfx::Rect expected = gfx::Rect(0, 0, 30, 30); 2367 gfx::Rect actual = LayerTreeHostCommon::CalculateVisibleRect( 2368 target_surface_rect, layer_content_rect, layer_to_surface_transform); 2369 EXPECT_RECT_EQ(expected, actual); 2370 2371 // Case 2: Layer is outside the surface rect. 2372 layer_to_surface_transform.MakeIdentity(); 2373 layer_to_surface_transform.Translate(-50.0, 0.0); 2374 layer_to_surface_transform.Rotate(45.0); 2375 actual = LayerTreeHostCommon::CalculateVisibleRect( 2376 target_surface_rect, layer_content_rect, layer_to_surface_transform); 2377 EXPECT_TRUE(actual.IsEmpty()); 2378 2379 // Case 3: The layer is rotated about its top-left corner. In surface space, 2380 // the layer is oriented diagonally, with the left half outside of the render 2381 // surface. In this case, the g should still be the entire layer 2382 // (remember the g is computed in layer space); both the top-left 2383 // and bottom-right corners of the layer are still visible. 2384 layer_to_surface_transform.MakeIdentity(); 2385 layer_to_surface_transform.Rotate(45.0); 2386 expected = gfx::Rect(0, 0, 30, 30); 2387 actual = LayerTreeHostCommon::CalculateVisibleRect( 2388 target_surface_rect, layer_content_rect, layer_to_surface_transform); 2389 EXPECT_RECT_EQ(expected, actual); 2390 2391 // Case 4: The layer is rotated about its top-left corner, and translated 2392 // upwards. In surface space, the layer is oriented diagonally, with only the 2393 // top corner of the surface overlapping the layer. In layer space, the render 2394 // surface overlaps the right side of the layer. The g should be 2395 // the layer's right half. 2396 layer_to_surface_transform.MakeIdentity(); 2397 layer_to_surface_transform.Translate(0.0, -sqrt(2.0) * 15.0); 2398 layer_to_surface_transform.Rotate(45.0); 2399 expected = gfx::Rect(15, 0, 15, 30); // Right half of layer bounds. 2400 actual = LayerTreeHostCommon::CalculateVisibleRect( 2401 target_surface_rect, layer_content_rect, layer_to_surface_transform); 2402 EXPECT_RECT_EQ(expected, actual); 2403 } 2404 2405 TEST_F(LayerTreeHostCommonTest, VisibleRectFor3dOrthographicTransform) { 2406 // Test that the calculateVisibleRect() function works correctly for 3d 2407 // transforms. 2408 2409 gfx::Rect target_surface_rect = gfx::Rect(0, 0, 100, 100); 2410 gfx::Rect layer_content_rect = gfx::Rect(0, 0, 100, 100); 2411 gfx::Transform layer_to_surface_transform; 2412 2413 // Case 1: Orthographic projection of a layer rotated about y-axis by 45 2414 // degrees, should be fully contained in the render surface. 2415 layer_to_surface_transform.MakeIdentity(); 2416 layer_to_surface_transform.RotateAboutYAxis(45.0); 2417 gfx::Rect expected = gfx::Rect(0, 0, 100, 100); 2418 gfx::Rect actual = LayerTreeHostCommon::CalculateVisibleRect( 2419 target_surface_rect, layer_content_rect, layer_to_surface_transform); 2420 EXPECT_RECT_EQ(expected, actual); 2421 2422 // Case 2: Orthographic projection of a layer rotated about y-axis by 45 2423 // degrees, but shifted to the side so only the right-half the layer would be 2424 // visible on the surface. 2425 // 100 is the un-rotated layer width; divided by sqrt(2) is the rotated width. 2426 SkMScalar half_width_of_rotated_layer = 2427 SkDoubleToMScalar((100.0 / sqrt(2.0)) * 0.5); 2428 layer_to_surface_transform.MakeIdentity(); 2429 layer_to_surface_transform.Translate(-half_width_of_rotated_layer, 0.0); 2430 layer_to_surface_transform.RotateAboutYAxis(45.0); // Rotates about the left 2431 // edge of the layer. 2432 expected = gfx::Rect(50, 0, 50, 100); // Tight half of the layer. 2433 actual = LayerTreeHostCommon::CalculateVisibleRect( 2434 target_surface_rect, layer_content_rect, layer_to_surface_transform); 2435 EXPECT_RECT_EQ(expected, actual); 2436 } 2437 2438 TEST_F(LayerTreeHostCommonTest, VisibleRectFor3dPerspectiveTransform) { 2439 // Test the calculateVisibleRect() function works correctly when the layer has 2440 // a perspective projection onto the target surface. 2441 2442 gfx::Rect target_surface_rect = gfx::Rect(0, 0, 100, 100); 2443 gfx::Rect layer_content_rect = gfx::Rect(-50, -50, 200, 200); 2444 gfx::Transform layer_to_surface_transform; 2445 2446 // Case 1: Even though the layer is twice as large as the surface, due to 2447 // perspective foreshortening, the layer will fit fully in the surface when 2448 // its translated more than the perspective amount. 2449 layer_to_surface_transform.MakeIdentity(); 2450 2451 // The following sequence of transforms applies the perspective about the 2452 // center of the surface. 2453 layer_to_surface_transform.Translate(50.0, 50.0); 2454 layer_to_surface_transform.ApplyPerspectiveDepth(9.0); 2455 layer_to_surface_transform.Translate(-50.0, -50.0); 2456 2457 // This translate places the layer in front of the surface's projection plane. 2458 layer_to_surface_transform.Translate3d(0.0, 0.0, -27.0); 2459 2460 gfx::Rect expected = gfx::Rect(-50, -50, 200, 200); 2461 gfx::Rect actual = LayerTreeHostCommon::CalculateVisibleRect( 2462 target_surface_rect, layer_content_rect, layer_to_surface_transform); 2463 EXPECT_RECT_EQ(expected, actual); 2464 2465 // Case 2: same projection as before, except that the layer is also translated 2466 // to the side, so that only the right half of the layer should be visible. 2467 // 2468 // Explanation of expected result: The perspective ratio is (z distance 2469 // between layer and camera origin) / (z distance between projection plane and 2470 // camera origin) == ((-27 - 9) / 9) Then, by similar triangles, if we want to 2471 // move a layer by translating -50 units in projected surface units (so that 2472 // only half of it is visible), then we would need to translate by (-36 / 9) * 2473 // -50 == -200 in the layer's units. 2474 layer_to_surface_transform.Translate3d(-200.0, 0.0, 0.0); 2475 expected = gfx::Rect(gfx::Point(50, -50), 2476 gfx::Size(100, 200)); // The right half of the layer's 2477 // bounding rect. 2478 actual = LayerTreeHostCommon::CalculateVisibleRect( 2479 target_surface_rect, layer_content_rect, layer_to_surface_transform); 2480 EXPECT_RECT_EQ(expected, actual); 2481 } 2482 2483 TEST_F(LayerTreeHostCommonTest, 2484 VisibleRectFor3dOrthographicIsNotClippedBehindSurface) { 2485 // There is currently no explicit concept of an orthographic projection plane 2486 // in our code (nor in the CSS spec to my knowledge). Therefore, layers that 2487 // are technically behind the surface in an orthographic world should not be 2488 // clipped when they are flattened to the surface. 2489 2490 gfx::Rect target_surface_rect = gfx::Rect(0, 0, 100, 100); 2491 gfx::Rect layer_content_rect = gfx::Rect(0, 0, 100, 100); 2492 gfx::Transform layer_to_surface_transform; 2493 2494 // This sequence of transforms effectively rotates the layer about the y-axis 2495 // at the center of the layer. 2496 layer_to_surface_transform.MakeIdentity(); 2497 layer_to_surface_transform.Translate(50.0, 0.0); 2498 layer_to_surface_transform.RotateAboutYAxis(45.0); 2499 layer_to_surface_transform.Translate(-50.0, 0.0); 2500 2501 gfx::Rect expected = gfx::Rect(0, 0, 100, 100); 2502 gfx::Rect actual = LayerTreeHostCommon::CalculateVisibleRect( 2503 target_surface_rect, layer_content_rect, layer_to_surface_transform); 2504 EXPECT_RECT_EQ(expected, actual); 2505 } 2506 2507 TEST_F(LayerTreeHostCommonTest, VisibleRectFor3dPerspectiveWhenClippedByW) { 2508 // Test the calculateVisibleRect() function works correctly when projecting a 2509 // surface onto a layer, but the layer is partially behind the camera (not 2510 // just behind the projection plane). In this case, the cartesian coordinates 2511 // may seem to be valid, but actually they are not. The visible rect needs to 2512 // be properly clipped by the w = 0 plane in homogeneous coordinates before 2513 // converting to cartesian coordinates. 2514 2515 gfx::Rect target_surface_rect = gfx::Rect(-50, -50, 100, 100); 2516 gfx::Rect layer_content_rect = gfx::Rect(-10, -1, 20, 2); 2517 gfx::Transform layer_to_surface_transform; 2518 2519 // The layer is positioned so that the right half of the layer should be in 2520 // front of the camera, while the other half is behind the surface's 2521 // projection plane. The following sequence of transforms applies the 2522 // perspective and rotation about the center of the layer. 2523 layer_to_surface_transform.MakeIdentity(); 2524 layer_to_surface_transform.ApplyPerspectiveDepth(1.0); 2525 layer_to_surface_transform.Translate3d(-2.0, 0.0, 1.0); 2526 layer_to_surface_transform.RotateAboutYAxis(45.0); 2527 2528 // Sanity check that this transform does indeed cause w < 0 when applying the 2529 // transform, otherwise this code is not testing the intended scenario. 2530 bool clipped; 2531 MathUtil::MapQuad(layer_to_surface_transform, 2532 gfx::QuadF(gfx::RectF(layer_content_rect)), 2533 &clipped); 2534 ASSERT_TRUE(clipped); 2535 2536 int expected_x_position = 0; 2537 int expected_width = 10; 2538 gfx::Rect actual = LayerTreeHostCommon::CalculateVisibleRect( 2539 target_surface_rect, layer_content_rect, layer_to_surface_transform); 2540 EXPECT_EQ(expected_x_position, actual.x()); 2541 EXPECT_EQ(expected_width, actual.width()); 2542 } 2543 2544 TEST_F(LayerTreeHostCommonTest, VisibleRectForPerspectiveUnprojection) { 2545 // To determine visible rect in layer space, there needs to be an 2546 // un-projection from surface space to layer space. When the original 2547 // transform was a perspective projection that was clipped, it returns a rect 2548 // that encloses the clipped bounds. Un-projecting this new rect may require 2549 // clipping again. 2550 2551 // This sequence of transforms causes one corner of the layer to protrude 2552 // across the w = 0 plane, and should be clipped. 2553 gfx::Rect target_surface_rect = gfx::Rect(-50, -50, 100, 100); 2554 gfx::Rect layer_content_rect = gfx::Rect(-10, -10, 20, 20); 2555 gfx::Transform layer_to_surface_transform; 2556 layer_to_surface_transform.MakeIdentity(); 2557 layer_to_surface_transform.ApplyPerspectiveDepth(1.0); 2558 layer_to_surface_transform.Translate3d(0.0, 0.0, -5.0); 2559 layer_to_surface_transform.RotateAboutYAxis(45.0); 2560 layer_to_surface_transform.RotateAboutXAxis(80.0); 2561 2562 // Sanity check that un-projection does indeed cause w < 0, otherwise this 2563 // code is not testing the intended scenario. 2564 bool clipped; 2565 gfx::RectF clipped_rect = 2566 MathUtil::MapClippedRect(layer_to_surface_transform, layer_content_rect); 2567 MathUtil::ProjectQuad( 2568 Inverse(layer_to_surface_transform), gfx::QuadF(clipped_rect), &clipped); 2569 ASSERT_TRUE(clipped); 2570 2571 // Only the corner of the layer is not visible on the surface because of being 2572 // clipped. But, the net result of rounding visible region to an axis-aligned 2573 // rect is that the entire layer should still be considered visible. 2574 gfx::Rect expected = gfx::Rect(-10, -10, 20, 20); 2575 gfx::Rect actual = LayerTreeHostCommon::CalculateVisibleRect( 2576 target_surface_rect, layer_content_rect, layer_to_surface_transform); 2577 EXPECT_RECT_EQ(expected, actual); 2578 } 2579 2580 TEST_F(LayerTreeHostCommonTest, DrawableAndVisibleContentRectsForSimpleLayers) { 2581 scoped_refptr<Layer> root = Layer::Create(); 2582 scoped_refptr<LayerWithForcedDrawsContent> child1 = 2583 make_scoped_refptr(new LayerWithForcedDrawsContent()); 2584 scoped_refptr<LayerWithForcedDrawsContent> child2 = 2585 make_scoped_refptr(new LayerWithForcedDrawsContent()); 2586 scoped_refptr<LayerWithForcedDrawsContent> child3 = 2587 make_scoped_refptr(new LayerWithForcedDrawsContent()); 2588 root->AddChild(child1); 2589 root->AddChild(child2); 2590 root->AddChild(child3); 2591 2592 scoped_ptr<FakeLayerTreeHost> host = FakeLayerTreeHost::Create(); 2593 host->SetRootLayer(root); 2594 2595 gfx::Transform identity_matrix; 2596 SetLayerPropertiesForTesting(root.get(), 2597 identity_matrix, 2598 gfx::Point3F(), 2599 gfx::PointF(), 2600 gfx::Size(100, 100), 2601 true, 2602 false); 2603 SetLayerPropertiesForTesting(child1.get(), 2604 identity_matrix, 2605 gfx::Point3F(), 2606 gfx::PointF(), 2607 gfx::Size(50, 50), 2608 true, 2609 false); 2610 SetLayerPropertiesForTesting(child2.get(), 2611 identity_matrix, 2612 gfx::Point3F(), 2613 gfx::PointF(75.f, 75.f), 2614 gfx::Size(50, 50), 2615 true, 2616 false); 2617 SetLayerPropertiesForTesting(child3.get(), 2618 identity_matrix, 2619 gfx::Point3F(), 2620 gfx::PointF(125.f, 125.f), 2621 gfx::Size(50, 50), 2622 true, 2623 false); 2624 2625 ExecuteCalculateDrawProperties(root.get()); 2626 2627 EXPECT_RECT_EQ(gfx::Rect(0, 0, 100, 100), 2628 root->render_surface()->DrawableContentRect()); 2629 EXPECT_RECT_EQ(gfx::Rect(0, 0, 100, 100), root->drawable_content_rect()); 2630 2631 // Layers that do not draw content should have empty visible_content_rects. 2632 EXPECT_RECT_EQ(gfx::Rect(0, 0, 0, 0), root->visible_content_rect()); 2633 2634 // layer visible_content_rects are clipped by their target surface. 2635 EXPECT_RECT_EQ(gfx::Rect(0, 0, 50, 50), child1->visible_content_rect()); 2636 EXPECT_RECT_EQ(gfx::Rect(0, 0, 25, 25), child2->visible_content_rect()); 2637 EXPECT_TRUE(child3->visible_content_rect().IsEmpty()); 2638 2639 // layer drawable_content_rects are not clipped. 2640 EXPECT_RECT_EQ(gfx::Rect(0, 0, 50, 50), child1->drawable_content_rect()); 2641 EXPECT_RECT_EQ(gfx::Rect(75, 75, 50, 50), child2->drawable_content_rect()); 2642 EXPECT_RECT_EQ(gfx::Rect(125, 125, 50, 50), child3->drawable_content_rect()); 2643 } 2644 2645 TEST_F(LayerTreeHostCommonTest, 2646 DrawableAndVisibleContentRectsForLayersClippedByLayer) { 2647 scoped_refptr<Layer> root = Layer::Create(); 2648 scoped_refptr<Layer> child = Layer::Create(); 2649 scoped_refptr<LayerWithForcedDrawsContent> grand_child1 = 2650 make_scoped_refptr(new LayerWithForcedDrawsContent()); 2651 scoped_refptr<LayerWithForcedDrawsContent> grand_child2 = 2652 make_scoped_refptr(new LayerWithForcedDrawsContent()); 2653 scoped_refptr<LayerWithForcedDrawsContent> grand_child3 = 2654 make_scoped_refptr(new LayerWithForcedDrawsContent()); 2655 root->AddChild(child); 2656 child->AddChild(grand_child1); 2657 child->AddChild(grand_child2); 2658 child->AddChild(grand_child3); 2659 2660 scoped_ptr<FakeLayerTreeHost> host = FakeLayerTreeHost::Create(); 2661 host->SetRootLayer(root); 2662 2663 gfx::Transform identity_matrix; 2664 SetLayerPropertiesForTesting(root.get(), 2665 identity_matrix, 2666 gfx::Point3F(), 2667 gfx::PointF(), 2668 gfx::Size(100, 100), 2669 true, 2670 false); 2671 SetLayerPropertiesForTesting(child.get(), 2672 identity_matrix, 2673 gfx::Point3F(), 2674 gfx::PointF(), 2675 gfx::Size(100, 100), 2676 true, 2677 false); 2678 SetLayerPropertiesForTesting(grand_child1.get(), 2679 identity_matrix, 2680 gfx::Point3F(), 2681 gfx::PointF(5.f, 5.f), 2682 gfx::Size(50, 50), 2683 true, 2684 false); 2685 SetLayerPropertiesForTesting(grand_child2.get(), 2686 identity_matrix, 2687 gfx::Point3F(), 2688 gfx::PointF(75.f, 75.f), 2689 gfx::Size(50, 50), 2690 true, 2691 false); 2692 SetLayerPropertiesForTesting(grand_child3.get(), 2693 identity_matrix, 2694 gfx::Point3F(), 2695 gfx::PointF(125.f, 125.f), 2696 gfx::Size(50, 50), 2697 true, 2698 false); 2699 2700 child->SetMasksToBounds(true); 2701 ExecuteCalculateDrawProperties(root.get()); 2702 2703 ASSERT_FALSE(child->render_surface()); 2704 2705 EXPECT_RECT_EQ(gfx::Rect(0, 0, 100, 100), 2706 root->render_surface()->DrawableContentRect()); 2707 EXPECT_RECT_EQ(gfx::Rect(0, 0, 100, 100), root->drawable_content_rect()); 2708 2709 // Layers that do not draw content should have empty visible content rects. 2710 EXPECT_RECT_EQ(gfx::Rect(0, 0, 0, 0), root->visible_content_rect()); 2711 EXPECT_RECT_EQ(gfx::Rect(0, 0, 0, 0), child->visible_content_rect()); 2712 2713 // All grandchild visible content rects should be clipped by child. 2714 EXPECT_RECT_EQ(gfx::Rect(0, 0, 50, 50), grand_child1->visible_content_rect()); 2715 EXPECT_RECT_EQ(gfx::Rect(0, 0, 25, 25), grand_child2->visible_content_rect()); 2716 EXPECT_TRUE(grand_child3->visible_content_rect().IsEmpty()); 2717 2718 // All grandchild DrawableContentRects should also be clipped by child. 2719 EXPECT_RECT_EQ(gfx::Rect(5, 5, 50, 50), 2720 grand_child1->drawable_content_rect()); 2721 EXPECT_RECT_EQ(gfx::Rect(75, 75, 25, 25), 2722 grand_child2->drawable_content_rect()); 2723 EXPECT_TRUE(grand_child3->drawable_content_rect().IsEmpty()); 2724 } 2725 2726 TEST_F(LayerTreeHostCommonTest, 2727 DrawableAndVisibleContentRectsForLayersInUnclippedRenderSurface) { 2728 scoped_refptr<Layer> root = Layer::Create(); 2729 scoped_refptr<Layer> render_surface1 = Layer::Create(); 2730 scoped_refptr<LayerWithForcedDrawsContent> child1 = 2731 make_scoped_refptr(new LayerWithForcedDrawsContent()); 2732 scoped_refptr<LayerWithForcedDrawsContent> child2 = 2733 make_scoped_refptr(new LayerWithForcedDrawsContent()); 2734 scoped_refptr<LayerWithForcedDrawsContent> child3 = 2735 make_scoped_refptr(new LayerWithForcedDrawsContent()); 2736 root->AddChild(render_surface1); 2737 render_surface1->AddChild(child1); 2738 render_surface1->AddChild(child2); 2739 render_surface1->AddChild(child3); 2740 2741 scoped_ptr<FakeLayerTreeHost> host = FakeLayerTreeHost::Create(); 2742 host->SetRootLayer(root); 2743 2744 gfx::Transform identity_matrix; 2745 SetLayerPropertiesForTesting(root.get(), 2746 identity_matrix, 2747 gfx::Point3F(), 2748 gfx::PointF(), 2749 gfx::Size(100, 100), 2750 true, 2751 false); 2752 SetLayerPropertiesForTesting(render_surface1.get(), 2753 identity_matrix, 2754 gfx::Point3F(), 2755 gfx::PointF(), 2756 gfx::Size(3, 4), 2757 true, 2758 false); 2759 SetLayerPropertiesForTesting(child1.get(), 2760 identity_matrix, 2761 gfx::Point3F(), 2762 gfx::PointF(5.f, 5.f), 2763 gfx::Size(50, 50), 2764 true, 2765 false); 2766 SetLayerPropertiesForTesting(child2.get(), 2767 identity_matrix, 2768 gfx::Point3F(), 2769 gfx::PointF(75.f, 75.f), 2770 gfx::Size(50, 50), 2771 true, 2772 false); 2773 SetLayerPropertiesForTesting(child3.get(), 2774 identity_matrix, 2775 gfx::Point3F(), 2776 gfx::PointF(125.f, 125.f), 2777 gfx::Size(50, 50), 2778 true, 2779 false); 2780 2781 render_surface1->SetForceRenderSurface(true); 2782 ExecuteCalculateDrawProperties(root.get()); 2783 2784 ASSERT_TRUE(render_surface1->render_surface()); 2785 2786 EXPECT_RECT_EQ(gfx::Rect(0, 0, 100, 100), 2787 root->render_surface()->DrawableContentRect()); 2788 EXPECT_RECT_EQ(gfx::Rect(0, 0, 100, 100), root->drawable_content_rect()); 2789 2790 // Layers that do not draw content should have empty visible content rects. 2791 EXPECT_RECT_EQ(gfx::Rect(0, 0, 0, 0), root->visible_content_rect()); 2792 EXPECT_RECT_EQ(gfx::Rect(0, 0, 0, 0), 2793 render_surface1->visible_content_rect()); 2794 2795 // An unclipped surface grows its DrawableContentRect to include all drawable 2796 // regions of the subtree. 2797 EXPECT_RECT_EQ(gfx::Rect(5, 5, 170, 170), 2798 render_surface1->render_surface()->DrawableContentRect()); 2799 2800 // All layers that draw content into the unclipped surface are also unclipped. 2801 EXPECT_RECT_EQ(gfx::Rect(0, 0, 50, 50), child1->visible_content_rect()); 2802 EXPECT_RECT_EQ(gfx::Rect(0, 0, 50, 50), child2->visible_content_rect()); 2803 EXPECT_RECT_EQ(gfx::Rect(0, 0, 50, 50), child3->visible_content_rect()); 2804 2805 EXPECT_RECT_EQ(gfx::Rect(5, 5, 50, 50), child1->drawable_content_rect()); 2806 EXPECT_RECT_EQ(gfx::Rect(75, 75, 50, 50), child2->drawable_content_rect()); 2807 EXPECT_RECT_EQ(gfx::Rect(125, 125, 50, 50), child3->drawable_content_rect()); 2808 } 2809 2810 TEST_F(LayerTreeHostCommonTest, 2811 DrawableAndVisibleContentRectsForLayersWithUninvertibleTransform) { 2812 scoped_refptr<Layer> root = Layer::Create(); 2813 scoped_refptr<LayerWithForcedDrawsContent> child = 2814 make_scoped_refptr(new LayerWithForcedDrawsContent()); 2815 root->AddChild(child); 2816 2817 scoped_ptr<FakeLayerTreeHost> host = FakeLayerTreeHost::Create(); 2818 host->SetRootLayer(root); 2819 2820 // Case 1: a truly degenerate matrix 2821 gfx::Transform identity_matrix; 2822 gfx::Transform uninvertible_matrix(0.0, 0.0, 0.0, 0.0, 0.0, 0.0); 2823 ASSERT_FALSE(uninvertible_matrix.IsInvertible()); 2824 2825 SetLayerPropertiesForTesting(root.get(), 2826 identity_matrix, 2827 gfx::Point3F(), 2828 gfx::PointF(), 2829 gfx::Size(100, 100), 2830 true, 2831 false); 2832 SetLayerPropertiesForTesting(child.get(), 2833 uninvertible_matrix, 2834 gfx::Point3F(), 2835 gfx::PointF(5.f, 5.f), 2836 gfx::Size(50, 50), 2837 true, 2838 false); 2839 2840 ExecuteCalculateDrawProperties(root.get()); 2841 2842 EXPECT_TRUE(child->visible_content_rect().IsEmpty()); 2843 EXPECT_TRUE(child->drawable_content_rect().IsEmpty()); 2844 2845 // Case 2: a matrix with flattened z, uninvertible and not visible according 2846 // to the CSS spec. 2847 uninvertible_matrix.MakeIdentity(); 2848 uninvertible_matrix.matrix().set(2, 2, 0.0); 2849 ASSERT_FALSE(uninvertible_matrix.IsInvertible()); 2850 2851 SetLayerPropertiesForTesting(child.get(), 2852 uninvertible_matrix, 2853 gfx::Point3F(), 2854 gfx::PointF(5.f, 5.f), 2855 gfx::Size(50, 50), 2856 true, 2857 false); 2858 2859 ExecuteCalculateDrawProperties(root.get()); 2860 2861 EXPECT_TRUE(child->visible_content_rect().IsEmpty()); 2862 EXPECT_TRUE(child->drawable_content_rect().IsEmpty()); 2863 2864 // Case 3: a matrix with flattened z, also uninvertible and not visible. 2865 uninvertible_matrix.MakeIdentity(); 2866 uninvertible_matrix.Translate(500.0, 0.0); 2867 uninvertible_matrix.matrix().set(2, 2, 0.0); 2868 ASSERT_FALSE(uninvertible_matrix.IsInvertible()); 2869 2870 SetLayerPropertiesForTesting(child.get(), 2871 uninvertible_matrix, 2872 gfx::Point3F(), 2873 gfx::PointF(5.f, 5.f), 2874 gfx::Size(50, 50), 2875 true, 2876 false); 2877 2878 ExecuteCalculateDrawProperties(root.get()); 2879 2880 EXPECT_TRUE(child->visible_content_rect().IsEmpty()); 2881 EXPECT_TRUE(child->drawable_content_rect().IsEmpty()); 2882 } 2883 2884 TEST_F(LayerTreeHostCommonTest, 2885 SingularTransformDoesNotPreventClearingDrawProperties) { 2886 scoped_refptr<Layer> root = Layer::Create(); 2887 scoped_refptr<LayerWithForcedDrawsContent> child = 2888 make_scoped_refptr(new LayerWithForcedDrawsContent()); 2889 root->AddChild(child); 2890 2891 scoped_ptr<FakeLayerTreeHost> host = FakeLayerTreeHost::Create(); 2892 host->SetRootLayer(root); 2893 2894 gfx::Transform identity_matrix; 2895 gfx::Transform uninvertible_matrix(0.0, 0.0, 0.0, 0.0, 0.0, 0.0); 2896 ASSERT_FALSE(uninvertible_matrix.IsInvertible()); 2897 2898 SetLayerPropertiesForTesting(root.get(), 2899 uninvertible_matrix, 2900 gfx::Point3F(), 2901 gfx::PointF(), 2902 gfx::Size(100, 100), 2903 true, 2904 false); 2905 SetLayerPropertiesForTesting(child.get(), 2906 identity_matrix, 2907 gfx::Point3F(), 2908 gfx::PointF(5.f, 5.f), 2909 gfx::Size(50, 50), 2910 true, 2911 false); 2912 2913 child->draw_properties().sorted_for_recursion = true; 2914 2915 TransformOperations start_transform_operations; 2916 start_transform_operations.AppendScale(1.f, 0.f, 0.f); 2917 2918 TransformOperations end_transform_operations; 2919 end_transform_operations.AppendScale(1.f, 1.f, 0.f); 2920 2921 AddAnimatedTransformToLayer( 2922 root.get(), 10.0, start_transform_operations, end_transform_operations); 2923 2924 EXPECT_TRUE(root->TransformIsAnimating()); 2925 2926 ExecuteCalculateDrawProperties(root.get()); 2927 2928 EXPECT_FALSE(child->draw_properties().sorted_for_recursion); 2929 } 2930 2931 TEST_F(LayerTreeHostCommonTest, 2932 SingularNonAnimatingTransformDoesNotPreventClearingDrawProperties) { 2933 scoped_refptr<Layer> root = Layer::Create(); 2934 2935 scoped_ptr<FakeLayerTreeHost> host = FakeLayerTreeHost::Create(); 2936 host->SetRootLayer(root); 2937 2938 gfx::Transform identity_matrix; 2939 gfx::Transform uninvertible_matrix(0.0, 0.0, 0.0, 0.0, 0.0, 0.0); 2940 ASSERT_FALSE(uninvertible_matrix.IsInvertible()); 2941 2942 SetLayerPropertiesForTesting(root.get(), 2943 uninvertible_matrix, 2944 gfx::Point3F(), 2945 gfx::PointF(), 2946 gfx::Size(100, 100), 2947 true, 2948 false); 2949 2950 root->draw_properties().sorted_for_recursion = true; 2951 2952 EXPECT_FALSE(root->TransformIsAnimating()); 2953 2954 ExecuteCalculateDrawProperties(root.get()); 2955 2956 EXPECT_FALSE(root->draw_properties().sorted_for_recursion); 2957 } 2958 2959 TEST_F(LayerTreeHostCommonTest, 2960 DrawableAndVisibleContentRectsForLayersInClippedRenderSurface) { 2961 scoped_refptr<Layer> root = Layer::Create(); 2962 scoped_refptr<Layer> render_surface1 = Layer::Create(); 2963 scoped_refptr<LayerWithForcedDrawsContent> child1 = 2964 make_scoped_refptr(new LayerWithForcedDrawsContent()); 2965 scoped_refptr<LayerWithForcedDrawsContent> child2 = 2966 make_scoped_refptr(new LayerWithForcedDrawsContent()); 2967 scoped_refptr<LayerWithForcedDrawsContent> child3 = 2968 make_scoped_refptr(new LayerWithForcedDrawsContent()); 2969 root->AddChild(render_surface1); 2970 render_surface1->AddChild(child1); 2971 render_surface1->AddChild(child2); 2972 render_surface1->AddChild(child3); 2973 2974 scoped_ptr<FakeLayerTreeHost> host = FakeLayerTreeHost::Create(); 2975 host->SetRootLayer(root); 2976 2977 gfx::Transform identity_matrix; 2978 SetLayerPropertiesForTesting(root.get(), 2979 identity_matrix, 2980 gfx::Point3F(), 2981 gfx::PointF(), 2982 gfx::Size(100, 100), 2983 true, 2984 false); 2985 SetLayerPropertiesForTesting(render_surface1.get(), 2986 identity_matrix, 2987 gfx::Point3F(), 2988 gfx::PointF(), 2989 gfx::Size(3, 4), 2990 true, 2991 false); 2992 SetLayerPropertiesForTesting(child1.get(), 2993 identity_matrix, 2994 gfx::Point3F(), 2995 gfx::PointF(5.f, 5.f), 2996 gfx::Size(50, 50), 2997 true, 2998 false); 2999 SetLayerPropertiesForTesting(child2.get(), 3000 identity_matrix, 3001 gfx::Point3F(), 3002 gfx::PointF(75.f, 75.f), 3003 gfx::Size(50, 50), 3004 true, 3005 false); 3006 SetLayerPropertiesForTesting(child3.get(), 3007 identity_matrix, 3008 gfx::Point3F(), 3009 gfx::PointF(125.f, 125.f), 3010 gfx::Size(50, 50), 3011 true, 3012 false); 3013 3014 root->SetMasksToBounds(true); 3015 render_surface1->SetForceRenderSurface(true); 3016 ExecuteCalculateDrawProperties(root.get()); 3017 3018 ASSERT_TRUE(render_surface1->render_surface()); 3019 3020 EXPECT_RECT_EQ(gfx::Rect(0, 0, 100, 100), 3021 root->render_surface()->DrawableContentRect()); 3022 EXPECT_RECT_EQ(gfx::Rect(0, 0, 100, 100), root->drawable_content_rect()); 3023 3024 // Layers that do not draw content should have empty visible content rects. 3025 EXPECT_RECT_EQ(gfx::Rect(0, 0, 0, 0), root->visible_content_rect()); 3026 EXPECT_RECT_EQ(gfx::Rect(0, 0, 0, 0), 3027 render_surface1->visible_content_rect()); 3028 3029 // A clipped surface grows its DrawableContentRect to include all drawable 3030 // regions of the subtree, but also gets clamped by the ancestor's clip. 3031 EXPECT_RECT_EQ(gfx::Rect(5, 5, 95, 95), 3032 render_surface1->render_surface()->DrawableContentRect()); 3033 3034 // All layers that draw content into the surface have their visible content 3035 // rect clipped by the surface clip rect. 3036 EXPECT_RECT_EQ(gfx::Rect(0, 0, 50, 50), child1->visible_content_rect()); 3037 EXPECT_RECT_EQ(gfx::Rect(0, 0, 25, 25), child2->visible_content_rect()); 3038 EXPECT_TRUE(child3->visible_content_rect().IsEmpty()); 3039 3040 // But the DrawableContentRects are unclipped. 3041 EXPECT_RECT_EQ(gfx::Rect(5, 5, 50, 50), child1->drawable_content_rect()); 3042 EXPECT_RECT_EQ(gfx::Rect(75, 75, 50, 50), child2->drawable_content_rect()); 3043 EXPECT_RECT_EQ(gfx::Rect(125, 125, 50, 50), child3->drawable_content_rect()); 3044 } 3045 3046 TEST_F(LayerTreeHostCommonTest, 3047 DrawableAndVisibleContentRectsForSurfaceHierarchy) { 3048 // Check that clipping does not propagate down surfaces. 3049 scoped_refptr<Layer> root = Layer::Create(); 3050 scoped_refptr<Layer> render_surface1 = Layer::Create(); 3051 scoped_refptr<Layer> render_surface2 = Layer::Create(); 3052 scoped_refptr<LayerWithForcedDrawsContent> child1 = 3053 make_scoped_refptr(new LayerWithForcedDrawsContent()); 3054 scoped_refptr<LayerWithForcedDrawsContent> child2 = 3055 make_scoped_refptr(new LayerWithForcedDrawsContent()); 3056 scoped_refptr<LayerWithForcedDrawsContent> child3 = 3057 make_scoped_refptr(new LayerWithForcedDrawsContent()); 3058 root->AddChild(render_surface1); 3059 render_surface1->AddChild(render_surface2); 3060 render_surface2->AddChild(child1); 3061 render_surface2->AddChild(child2); 3062 render_surface2->AddChild(child3); 3063 3064 scoped_ptr<FakeLayerTreeHost> host = FakeLayerTreeHost::Create(); 3065 host->SetRootLayer(root); 3066 3067 gfx::Transform identity_matrix; 3068 SetLayerPropertiesForTesting(root.get(), 3069 identity_matrix, 3070 gfx::Point3F(), 3071 gfx::PointF(), 3072 gfx::Size(100, 100), 3073 true, 3074 false); 3075 SetLayerPropertiesForTesting(render_surface1.get(), 3076 identity_matrix, 3077 gfx::Point3F(), 3078 gfx::PointF(), 3079 gfx::Size(3, 4), 3080 true, 3081 false); 3082 SetLayerPropertiesForTesting(render_surface2.get(), 3083 identity_matrix, 3084 gfx::Point3F(), 3085 gfx::PointF(), 3086 gfx::Size(7, 13), 3087 true, 3088 false); 3089 SetLayerPropertiesForTesting(child1.get(), 3090 identity_matrix, 3091 gfx::Point3F(), 3092 gfx::PointF(5.f, 5.f), 3093 gfx::Size(50, 50), 3094 true, 3095 false); 3096 SetLayerPropertiesForTesting(child2.get(), 3097 identity_matrix, 3098 gfx::Point3F(), 3099 gfx::PointF(75.f, 75.f), 3100 gfx::Size(50, 50), 3101 true, 3102 false); 3103 SetLayerPropertiesForTesting(child3.get(), 3104 identity_matrix, 3105 gfx::Point3F(), 3106 gfx::PointF(125.f, 125.f), 3107 gfx::Size(50, 50), 3108 true, 3109 false); 3110 3111 root->SetMasksToBounds(true); 3112 render_surface1->SetForceRenderSurface(true); 3113 render_surface2->SetForceRenderSurface(true); 3114 ExecuteCalculateDrawProperties(root.get()); 3115 3116 ASSERT_TRUE(render_surface1->render_surface()); 3117 ASSERT_TRUE(render_surface2->render_surface()); 3118 3119 EXPECT_RECT_EQ(gfx::Rect(0, 0, 100, 100), 3120 root->render_surface()->DrawableContentRect()); 3121 EXPECT_RECT_EQ(gfx::Rect(0, 0, 100, 100), root->drawable_content_rect()); 3122 3123 // Layers that do not draw content should have empty visible content rects. 3124 EXPECT_RECT_EQ(gfx::Rect(0, 0, 0, 0), root->visible_content_rect()); 3125 EXPECT_RECT_EQ(gfx::Rect(0, 0, 0, 0), 3126 render_surface1->visible_content_rect()); 3127 EXPECT_RECT_EQ(gfx::Rect(0, 0, 0, 0), 3128 render_surface2->visible_content_rect()); 3129 3130 // A clipped surface grows its DrawableContentRect to include all drawable 3131 // regions of the subtree, but also gets clamped by the ancestor's clip. 3132 EXPECT_RECT_EQ(gfx::Rect(5, 5, 95, 95), 3133 render_surface1->render_surface()->DrawableContentRect()); 3134 3135 // render_surface1 lives in the "unclipped universe" of render_surface1, and 3136 // is only implicitly clipped by render_surface1's content rect. So, 3137 // render_surface2 grows to enclose all drawable content of its subtree. 3138 EXPECT_RECT_EQ(gfx::Rect(5, 5, 170, 170), 3139 render_surface2->render_surface()->DrawableContentRect()); 3140 3141 // All layers that draw content into render_surface2 think they are unclipped. 3142 EXPECT_RECT_EQ(gfx::Rect(0, 0, 50, 50), child1->visible_content_rect()); 3143 EXPECT_RECT_EQ(gfx::Rect(0, 0, 50, 50), child2->visible_content_rect()); 3144 EXPECT_RECT_EQ(gfx::Rect(0, 0, 50, 50), child3->visible_content_rect()); 3145 3146 // DrawableContentRects are also unclipped. 3147 EXPECT_RECT_EQ(gfx::Rect(5, 5, 50, 50), child1->drawable_content_rect()); 3148 EXPECT_RECT_EQ(gfx::Rect(75, 75, 50, 50), child2->drawable_content_rect()); 3149 EXPECT_RECT_EQ(gfx::Rect(125, 125, 50, 50), child3->drawable_content_rect()); 3150 } 3151 3152 TEST_F(LayerTreeHostCommonTest, 3153 DrawableAndVisibleContentRectsWithTransformOnUnclippedSurface) { 3154 // Layers that have non-axis aligned bounds (due to transforms) have an 3155 // expanded, axis-aligned DrawableContentRect and visible content rect. 3156 3157 scoped_refptr<Layer> root = Layer::Create(); 3158 scoped_refptr<Layer> render_surface1 = Layer::Create(); 3159 scoped_refptr<LayerWithForcedDrawsContent> child1 = 3160 make_scoped_refptr(new LayerWithForcedDrawsContent()); 3161 root->AddChild(render_surface1); 3162 render_surface1->AddChild(child1); 3163 3164 scoped_ptr<FakeLayerTreeHost> host = FakeLayerTreeHost::Create(); 3165 host->SetRootLayer(root); 3166 3167 gfx::Transform identity_matrix; 3168 gfx::Transform child_rotation; 3169 child_rotation.Rotate(45.0); 3170 SetLayerPropertiesForTesting(root.get(), 3171 identity_matrix, 3172 gfx::Point3F(), 3173 gfx::PointF(), 3174 gfx::Size(100, 100), 3175 true, 3176 false); 3177 SetLayerPropertiesForTesting(render_surface1.get(), 3178 identity_matrix, 3179 gfx::Point3F(), 3180 gfx::PointF(), 3181 gfx::Size(3, 4), 3182 true, 3183 false); 3184 SetLayerPropertiesForTesting(child1.get(), 3185 child_rotation, 3186 gfx::Point3F(25, 25, 0.f), 3187 gfx::PointF(25.f, 25.f), 3188 gfx::Size(50, 50), 3189 true, 3190 false); 3191 3192 render_surface1->SetForceRenderSurface(true); 3193 ExecuteCalculateDrawProperties(root.get()); 3194 3195 ASSERT_TRUE(render_surface1->render_surface()); 3196 3197 EXPECT_RECT_EQ(gfx::Rect(0, 0, 100, 100), 3198 root->render_surface()->DrawableContentRect()); 3199 EXPECT_RECT_EQ(gfx::Rect(0, 0, 100, 100), root->drawable_content_rect()); 3200 3201 // Layers that do not draw content should have empty visible content rects. 3202 EXPECT_RECT_EQ(gfx::Rect(0, 0, 0, 0), root->visible_content_rect()); 3203 EXPECT_RECT_EQ(gfx::Rect(0, 0, 0, 0), 3204 render_surface1->visible_content_rect()); 3205 3206 // The unclipped surface grows its DrawableContentRect to include all drawable 3207 // regions of the subtree. 3208 int diagonal_radius = ceil(sqrt(2.0) * 25.0); 3209 gfx::Rect expected_surface_drawable_content = 3210 gfx::Rect(50 - diagonal_radius, 3211 50 - diagonal_radius, 3212 diagonal_radius * 2, 3213 diagonal_radius * 2); 3214 EXPECT_RECT_EQ(expected_surface_drawable_content, 3215 render_surface1->render_surface()->DrawableContentRect()); 3216 3217 // All layers that draw content into the unclipped surface are also unclipped. 3218 EXPECT_RECT_EQ(gfx::Rect(0, 0, 50, 50), child1->visible_content_rect()); 3219 EXPECT_RECT_EQ(expected_surface_drawable_content, 3220 child1->drawable_content_rect()); 3221 } 3222 3223 TEST_F(LayerTreeHostCommonTest, 3224 DrawableAndVisibleContentRectsWithTransformOnClippedSurface) { 3225 // Layers that have non-axis aligned bounds (due to transforms) have an 3226 // expanded, axis-aligned DrawableContentRect and visible content rect. 3227 3228 scoped_refptr<Layer> root = Layer::Create(); 3229 scoped_refptr<Layer> render_surface1 = Layer::Create(); 3230 scoped_refptr<LayerWithForcedDrawsContent> child1 = 3231 make_scoped_refptr(new LayerWithForcedDrawsContent()); 3232 root->AddChild(render_surface1); 3233 render_surface1->AddChild(child1); 3234 3235 scoped_ptr<FakeLayerTreeHost> host = FakeLayerTreeHost::Create(); 3236 host->SetRootLayer(root); 3237 3238 gfx::Transform identity_matrix; 3239 gfx::Transform child_rotation; 3240 child_rotation.Rotate(45.0); 3241 SetLayerPropertiesForTesting(root.get(), 3242 identity_matrix, 3243 gfx::Point3F(), 3244 gfx::PointF(), 3245 gfx::Size(50, 50), 3246 true, 3247 false); 3248 SetLayerPropertiesForTesting(render_surface1.get(), 3249 identity_matrix, 3250 gfx::Point3F(), 3251 gfx::PointF(), 3252 gfx::Size(3, 4), 3253 true, 3254 false); 3255 3256 SetLayerPropertiesForTesting(child1.get(), 3257 child_rotation, 3258 gfx::Point3F(25, 25, 0.f), 3259 gfx::PointF(25.f, 25.f), 3260 gfx::Size(50, 50), 3261 true, 3262 false); 3263 3264 root->SetMasksToBounds(true); 3265 render_surface1->SetForceRenderSurface(true); 3266 ExecuteCalculateDrawProperties(root.get()); 3267 3268 ASSERT_TRUE(render_surface1->render_surface()); 3269 3270 // The clipped surface clamps the DrawableContentRect that encloses the 3271 // rotated layer. 3272 int diagonal_radius = ceil(sqrt(2.0) * 25.0); 3273 gfx::Rect unclipped_surface_content = gfx::Rect(50 - diagonal_radius, 3274 50 - diagonal_radius, 3275 diagonal_radius * 2, 3276 diagonal_radius * 2); 3277 gfx::Rect expected_surface_drawable_content = 3278 gfx::IntersectRects(unclipped_surface_content, gfx::Rect(0, 0, 50, 50)); 3279 EXPECT_RECT_EQ(expected_surface_drawable_content, 3280 render_surface1->render_surface()->DrawableContentRect()); 3281 3282 // On the clipped surface, only a quarter of the child1 is visible, but when 3283 // rotating it back to child1's content space, the actual enclosing rect ends 3284 // up covering the full left half of child1. 3285 // 3286 // Given the floating point math, this number is a little bit fuzzy. 3287 EXPECT_RECT_EQ(gfx::Rect(0, 0, 26, 50), child1->visible_content_rect()); 3288 3289 // The child's DrawableContentRect is unclipped. 3290 EXPECT_RECT_EQ(unclipped_surface_content, child1->drawable_content_rect()); 3291 } 3292 3293 TEST_F(LayerTreeHostCommonTest, DrawableAndVisibleContentRectsInHighDPI) { 3294 MockContentLayerClient client; 3295 3296 scoped_refptr<Layer> root = Layer::Create(); 3297 scoped_refptr<ContentLayer> render_surface1 = 3298 CreateDrawableContentLayer(&client); 3299 scoped_refptr<ContentLayer> render_surface2 = 3300 CreateDrawableContentLayer(&client); 3301 scoped_refptr<ContentLayer> child1 = CreateDrawableContentLayer(&client); 3302 scoped_refptr<ContentLayer> child2 = CreateDrawableContentLayer(&client); 3303 scoped_refptr<ContentLayer> child3 = CreateDrawableContentLayer(&client); 3304 root->AddChild(render_surface1); 3305 render_surface1->AddChild(render_surface2); 3306 render_surface2->AddChild(child1); 3307 render_surface2->AddChild(child2); 3308 render_surface2->AddChild(child3); 3309 3310 scoped_ptr<FakeLayerTreeHost> host = FakeLayerTreeHost::Create(); 3311 host->SetRootLayer(root); 3312 3313 gfx::Transform identity_matrix; 3314 SetLayerPropertiesForTesting(root.get(), 3315 identity_matrix, 3316 gfx::Point3F(), 3317 gfx::PointF(), 3318 gfx::Size(100, 100), 3319 true, 3320 false); 3321 SetLayerPropertiesForTesting(render_surface1.get(), 3322 identity_matrix, 3323 gfx::Point3F(), 3324 gfx::PointF(5.f, 5.f), 3325 gfx::Size(3, 4), 3326 true, 3327 false); 3328 SetLayerPropertiesForTesting(render_surface2.get(), 3329 identity_matrix, 3330 gfx::Point3F(), 3331 gfx::PointF(5.f, 5.f), 3332 gfx::Size(7, 13), 3333 true, 3334 false); 3335 SetLayerPropertiesForTesting(child1.get(), 3336 identity_matrix, 3337 gfx::Point3F(), 3338 gfx::PointF(5.f, 5.f), 3339 gfx::Size(50, 50), 3340 true, 3341 false); 3342 SetLayerPropertiesForTesting(child2.get(), 3343 identity_matrix, 3344 gfx::Point3F(), 3345 gfx::PointF(75.f, 75.f), 3346 gfx::Size(50, 50), 3347 true, 3348 false); 3349 SetLayerPropertiesForTesting(child3.get(), 3350 identity_matrix, 3351 gfx::Point3F(), 3352 gfx::PointF(125.f, 125.f), 3353 gfx::Size(50, 50), 3354 true, 3355 false); 3356 3357 float device_scale_factor = 2.f; 3358 3359 root->SetMasksToBounds(true); 3360 render_surface1->SetForceRenderSurface(true); 3361 render_surface2->SetForceRenderSurface(true); 3362 ExecuteCalculateDrawProperties(root.get(), device_scale_factor); 3363 3364 ASSERT_TRUE(render_surface1->render_surface()); 3365 ASSERT_TRUE(render_surface2->render_surface()); 3366 3367 // drawable_content_rects for all layers and surfaces are scaled by 3368 // device_scale_factor. 3369 EXPECT_RECT_EQ(gfx::Rect(0, 0, 200, 200), 3370 root->render_surface()->DrawableContentRect()); 3371 EXPECT_RECT_EQ(gfx::Rect(0, 0, 200, 200), root->drawable_content_rect()); 3372 EXPECT_RECT_EQ(gfx::Rect(10, 10, 190, 190), 3373 render_surface1->render_surface()->DrawableContentRect()); 3374 3375 // render_surface2 lives in the "unclipped universe" of render_surface1, and 3376 // is only implicitly clipped by render_surface1. 3377 EXPECT_RECT_EQ(gfx::Rect(10, 10, 350, 350), 3378 render_surface2->render_surface()->DrawableContentRect()); 3379 3380 EXPECT_RECT_EQ(gfx::Rect(10, 10, 100, 100), child1->drawable_content_rect()); 3381 EXPECT_RECT_EQ(gfx::Rect(150, 150, 100, 100), 3382 child2->drawable_content_rect()); 3383 EXPECT_RECT_EQ(gfx::Rect(250, 250, 100, 100), 3384 child3->drawable_content_rect()); 3385 3386 // The root layer does not actually draw content of its own. 3387 EXPECT_RECT_EQ(gfx::Rect(0, 0, 0, 0), root->visible_content_rect()); 3388 3389 // All layer visible content rects are expressed in content space of each 3390 // layer, so they are also scaled by the device_scale_factor. 3391 EXPECT_RECT_EQ(gfx::Rect(0, 0, 6, 8), 3392 render_surface1->visible_content_rect()); 3393 EXPECT_RECT_EQ(gfx::Rect(0, 0, 14, 26), 3394 render_surface2->visible_content_rect()); 3395 EXPECT_RECT_EQ(gfx::Rect(0, 0, 100, 100), child1->visible_content_rect()); 3396 EXPECT_RECT_EQ(gfx::Rect(0, 0, 100, 100), child2->visible_content_rect()); 3397 EXPECT_RECT_EQ(gfx::Rect(0, 0, 100, 100), child3->visible_content_rect()); 3398 } 3399 3400 TEST_F(LayerTreeHostCommonTest, BackFaceCullingWithoutPreserves3d) { 3401 // Verify the behavior of back-face culling when there are no preserve-3d 3402 // layers. Note that 3d transforms still apply in this case, but they are 3403 // "flattened" to each parent layer according to current W3C spec. 3404 3405 const gfx::Transform identity_matrix; 3406 scoped_refptr<Layer> parent = Layer::Create(); 3407 scoped_refptr<LayerWithForcedDrawsContent> front_facing_child = 3408 make_scoped_refptr(new LayerWithForcedDrawsContent()); 3409 scoped_refptr<LayerWithForcedDrawsContent> back_facing_child = 3410 make_scoped_refptr(new LayerWithForcedDrawsContent()); 3411 scoped_refptr<LayerWithForcedDrawsContent> front_facing_surface = 3412 make_scoped_refptr(new LayerWithForcedDrawsContent()); 3413 scoped_refptr<LayerWithForcedDrawsContent> back_facing_surface = 3414 make_scoped_refptr(new LayerWithForcedDrawsContent()); 3415 scoped_refptr<LayerWithForcedDrawsContent> 3416 front_facing_child_of_front_facing_surface = 3417 make_scoped_refptr(new LayerWithForcedDrawsContent()); 3418 scoped_refptr<LayerWithForcedDrawsContent> 3419 back_facing_child_of_front_facing_surface = 3420 make_scoped_refptr(new LayerWithForcedDrawsContent()); 3421 scoped_refptr<LayerWithForcedDrawsContent> 3422 front_facing_child_of_back_facing_surface = 3423 make_scoped_refptr(new LayerWithForcedDrawsContent()); 3424 scoped_refptr<LayerWithForcedDrawsContent> 3425 back_facing_child_of_back_facing_surface = 3426 make_scoped_refptr(new LayerWithForcedDrawsContent()); 3427 3428 parent->AddChild(front_facing_child); 3429 parent->AddChild(back_facing_child); 3430 parent->AddChild(front_facing_surface); 3431 parent->AddChild(back_facing_surface); 3432 front_facing_surface->AddChild(front_facing_child_of_front_facing_surface); 3433 front_facing_surface->AddChild(back_facing_child_of_front_facing_surface); 3434 back_facing_surface->AddChild(front_facing_child_of_back_facing_surface); 3435 back_facing_surface->AddChild(back_facing_child_of_back_facing_surface); 3436 3437 scoped_ptr<FakeLayerTreeHost> host = FakeLayerTreeHost::Create(); 3438 host->SetRootLayer(parent); 3439 3440 // Nothing is double-sided 3441 front_facing_child->SetDoubleSided(false); 3442 back_facing_child->SetDoubleSided(false); 3443 front_facing_surface->SetDoubleSided(false); 3444 back_facing_surface->SetDoubleSided(false); 3445 front_facing_child_of_front_facing_surface->SetDoubleSided(false); 3446 back_facing_child_of_front_facing_surface->SetDoubleSided(false); 3447 front_facing_child_of_back_facing_surface->SetDoubleSided(false); 3448 back_facing_child_of_back_facing_surface->SetDoubleSided(false); 3449 3450 gfx::Transform backface_matrix; 3451 backface_matrix.Translate(50.0, 50.0); 3452 backface_matrix.RotateAboutYAxis(180.0); 3453 backface_matrix.Translate(-50.0, -50.0); 3454 3455 // Having a descendant and opacity will force these to have render surfaces. 3456 front_facing_surface->SetOpacity(0.5f); 3457 back_facing_surface->SetOpacity(0.5f); 3458 3459 // Nothing preserves 3d. According to current W3C CSS gfx::Transforms spec, 3460 // these layers should blindly use their own local transforms to determine 3461 // back-face culling. 3462 SetLayerPropertiesForTesting(parent.get(), 3463 identity_matrix, 3464 gfx::Point3F(), 3465 gfx::PointF(), 3466 gfx::Size(100, 100), 3467 true, 3468 false); 3469 SetLayerPropertiesForTesting(front_facing_child.get(), 3470 identity_matrix, 3471 gfx::Point3F(), 3472 gfx::PointF(), 3473 gfx::Size(100, 100), 3474 true, 3475 false); 3476 SetLayerPropertiesForTesting(back_facing_child.get(), 3477 backface_matrix, 3478 gfx::Point3F(), 3479 gfx::PointF(), 3480 gfx::Size(100, 100), 3481 true, 3482 false); 3483 SetLayerPropertiesForTesting(front_facing_surface.get(), 3484 identity_matrix, 3485 gfx::Point3F(), 3486 gfx::PointF(), 3487 gfx::Size(100, 100), 3488 true, 3489 false); 3490 SetLayerPropertiesForTesting(back_facing_surface.get(), 3491 backface_matrix, 3492 gfx::Point3F(), 3493 gfx::PointF(), 3494 gfx::Size(100, 100), 3495 true, 3496 false); 3497 SetLayerPropertiesForTesting(front_facing_child_of_front_facing_surface.get(), 3498 identity_matrix, 3499 gfx::Point3F(), 3500 gfx::PointF(), 3501 gfx::Size(100, 100), 3502 true, 3503 false); 3504 SetLayerPropertiesForTesting(back_facing_child_of_front_facing_surface.get(), 3505 backface_matrix, 3506 gfx::Point3F(), 3507 gfx::PointF(), 3508 gfx::Size(100, 100), 3509 true, 3510 false); 3511 SetLayerPropertiesForTesting(front_facing_child_of_back_facing_surface.get(), 3512 identity_matrix, 3513 gfx::Point3F(), 3514 gfx::PointF(), 3515 gfx::Size(100, 100), 3516 true, 3517 false); 3518 SetLayerPropertiesForTesting(back_facing_child_of_back_facing_surface.get(), 3519 backface_matrix, 3520 gfx::Point3F(), 3521 gfx::PointF(), 3522 gfx::Size(100, 100), 3523 true, 3524 false); 3525 3526 RenderSurfaceLayerList render_surface_layer_list; 3527 LayerTreeHostCommon::CalcDrawPropsMainInputsForTesting inputs( 3528 parent.get(), parent->bounds(), &render_surface_layer_list); 3529 inputs.can_adjust_raster_scales = true; 3530 LayerTreeHostCommon::CalculateDrawProperties(&inputs); 3531 3532 // Verify which render surfaces were created. 3533 EXPECT_FALSE(front_facing_child->render_surface()); 3534 EXPECT_FALSE(back_facing_child->render_surface()); 3535 EXPECT_TRUE(front_facing_surface->render_surface()); 3536 EXPECT_TRUE(back_facing_surface->render_surface()); 3537 EXPECT_FALSE(front_facing_child_of_front_facing_surface->render_surface()); 3538 EXPECT_FALSE(back_facing_child_of_front_facing_surface->render_surface()); 3539 EXPECT_FALSE(front_facing_child_of_back_facing_surface->render_surface()); 3540 EXPECT_FALSE(back_facing_child_of_back_facing_surface->render_surface()); 3541 3542 // Verify the render_surface_layer_list. 3543 ASSERT_EQ(3u, render_surface_layer_list.size()); 3544 EXPECT_EQ(parent->id(), render_surface_layer_list.at(0)->id()); 3545 EXPECT_EQ(front_facing_surface->id(), render_surface_layer_list.at(1)->id()); 3546 // Even though the back facing surface LAYER gets culled, the other 3547 // descendants should still be added, so the SURFACE should not be culled. 3548 EXPECT_EQ(back_facing_surface->id(), render_surface_layer_list.at(2)->id()); 3549 3550 // Verify root surface's layer list. 3551 ASSERT_EQ( 3552 3u, 3553 render_surface_layer_list.at(0)->render_surface()->layer_list().size()); 3554 EXPECT_EQ(front_facing_child->id(), 3555 render_surface_layer_list.at(0) 3556 ->render_surface() 3557 ->layer_list() 3558 .at(0) 3559 ->id()); 3560 EXPECT_EQ(front_facing_surface->id(), 3561 render_surface_layer_list.at(0) 3562 ->render_surface() 3563 ->layer_list() 3564 .at(1) 3565 ->id()); 3566 EXPECT_EQ(back_facing_surface->id(), 3567 render_surface_layer_list.at(0) 3568 ->render_surface() 3569 ->layer_list() 3570 .at(2) 3571 ->id()); 3572 3573 // Verify front_facing_surface's layer list. 3574 ASSERT_EQ( 3575 2u, 3576 render_surface_layer_list.at(1)->render_surface()->layer_list().size()); 3577 EXPECT_EQ(front_facing_surface->id(), 3578 render_surface_layer_list.at(1) 3579 ->render_surface() 3580 ->layer_list() 3581 .at(0) 3582 ->id()); 3583 EXPECT_EQ(front_facing_child_of_front_facing_surface->id(), 3584 render_surface_layer_list.at(1) 3585 ->render_surface() 3586 ->layer_list() 3587 .at(1) 3588 ->id()); 3589 3590 // Verify back_facing_surface's layer list; its own layer should be culled 3591 // from the surface list. 3592 ASSERT_EQ( 3593 1u, 3594 render_surface_layer_list.at(2)->render_surface()->layer_list().size()); 3595 EXPECT_EQ(front_facing_child_of_back_facing_surface->id(), 3596 render_surface_layer_list.at(2) 3597 ->render_surface() 3598 ->layer_list() 3599 .at(0) 3600 ->id()); 3601 } 3602 3603 TEST_F(LayerTreeHostCommonTest, BackFaceCullingWithPreserves3d) { 3604 // Verify the behavior of back-face culling when preserves-3d transform style 3605 // is used. 3606 3607 const gfx::Transform identity_matrix; 3608 scoped_refptr<Layer> parent = Layer::Create(); 3609 scoped_refptr<LayerWithForcedDrawsContent> front_facing_child = 3610 make_scoped_refptr(new LayerWithForcedDrawsContent()); 3611 scoped_refptr<LayerWithForcedDrawsContent> back_facing_child = 3612 make_scoped_refptr(new LayerWithForcedDrawsContent()); 3613 scoped_refptr<LayerWithForcedDrawsContent> front_facing_surface = 3614 make_scoped_refptr(new LayerWithForcedDrawsContent()); 3615 scoped_refptr<LayerWithForcedDrawsContent> back_facing_surface = 3616 make_scoped_refptr(new LayerWithForcedDrawsContent()); 3617 scoped_refptr<LayerWithForcedDrawsContent> 3618 front_facing_child_of_front_facing_surface = 3619 make_scoped_refptr(new LayerWithForcedDrawsContent()); 3620 scoped_refptr<LayerWithForcedDrawsContent> 3621 back_facing_child_of_front_facing_surface = 3622 make_scoped_refptr(new LayerWithForcedDrawsContent()); 3623 scoped_refptr<LayerWithForcedDrawsContent> 3624 front_facing_child_of_back_facing_surface = 3625 make_scoped_refptr(new LayerWithForcedDrawsContent()); 3626 scoped_refptr<LayerWithForcedDrawsContent> 3627 back_facing_child_of_back_facing_surface = 3628 make_scoped_refptr(new LayerWithForcedDrawsContent()); 3629 scoped_refptr<LayerWithForcedDrawsContent> dummy_replica_layer1 = 3630 make_scoped_refptr(new LayerWithForcedDrawsContent()); 3631 scoped_refptr<LayerWithForcedDrawsContent> dummy_replica_layer2 = 3632 make_scoped_refptr(new LayerWithForcedDrawsContent()); 3633 3634 parent->AddChild(front_facing_child); 3635 parent->AddChild(back_facing_child); 3636 parent->AddChild(front_facing_surface); 3637 parent->AddChild(back_facing_surface); 3638 front_facing_surface->AddChild(front_facing_child_of_front_facing_surface); 3639 front_facing_surface->AddChild(back_facing_child_of_front_facing_surface); 3640 back_facing_surface->AddChild(front_facing_child_of_back_facing_surface); 3641 back_facing_surface->AddChild(back_facing_child_of_back_facing_surface); 3642 3643 scoped_ptr<FakeLayerTreeHost> host = FakeLayerTreeHost::Create(); 3644 host->SetRootLayer(parent); 3645 3646 // Nothing is double-sided 3647 front_facing_child->SetDoubleSided(false); 3648 back_facing_child->SetDoubleSided(false); 3649 front_facing_surface->SetDoubleSided(false); 3650 back_facing_surface->SetDoubleSided(false); 3651 front_facing_child_of_front_facing_surface->SetDoubleSided(false); 3652 back_facing_child_of_front_facing_surface->SetDoubleSided(false); 3653 front_facing_child_of_back_facing_surface->SetDoubleSided(false); 3654 back_facing_child_of_back_facing_surface->SetDoubleSided(false); 3655 3656 gfx::Transform backface_matrix; 3657 backface_matrix.Translate(50.0, 50.0); 3658 backface_matrix.RotateAboutYAxis(180.0); 3659 backface_matrix.Translate(-50.0, -50.0); 3660 3661 // Opacity will not force creation of render surfaces in this case because of 3662 // the preserve-3d transform style. Instead, an example of when a surface 3663 // would be created with preserve-3d is when there is a replica layer. 3664 front_facing_surface->SetReplicaLayer(dummy_replica_layer1.get()); 3665 back_facing_surface->SetReplicaLayer(dummy_replica_layer2.get()); 3666 3667 // Each surface creates its own new 3d rendering context (as defined by W3C 3668 // spec). According to current W3C CSS gfx::Transforms spec, layers in a 3d 3669 // rendering context should use the transform with respect to that context. 3670 // This 3d rendering context occurs when (a) parent's transform style is flat 3671 // and (b) the layer's transform style is preserve-3d. 3672 SetLayerPropertiesForTesting(parent.get(), 3673 identity_matrix, 3674 gfx::Point3F(), 3675 gfx::PointF(), 3676 gfx::Size(100, 100), 3677 true, 3678 false); // parent transform style is flat. 3679 SetLayerPropertiesForTesting(front_facing_child.get(), 3680 identity_matrix, 3681 gfx::Point3F(), 3682 gfx::PointF(), 3683 gfx::Size(100, 100), 3684 true, 3685 false); 3686 SetLayerPropertiesForTesting(back_facing_child.get(), 3687 backface_matrix, 3688 gfx::Point3F(), 3689 gfx::PointF(), 3690 gfx::Size(100, 100), 3691 true, 3692 false); 3693 // surface transform style is preserve-3d. 3694 SetLayerPropertiesForTesting(front_facing_surface.get(), 3695 identity_matrix, 3696 gfx::Point3F(), 3697 gfx::PointF(), 3698 gfx::Size(100, 100), 3699 false, 3700 true); 3701 // surface transform style is preserve-3d. 3702 SetLayerPropertiesForTesting(back_facing_surface.get(), 3703 backface_matrix, 3704 gfx::Point3F(), 3705 gfx::PointF(), 3706 gfx::Size(100, 100), 3707 false, 3708 true); 3709 SetLayerPropertiesForTesting(front_facing_child_of_front_facing_surface.get(), 3710 identity_matrix, 3711 gfx::Point3F(), 3712 gfx::PointF(), 3713 gfx::Size(100, 100), 3714 true, 3715 true); 3716 SetLayerPropertiesForTesting(back_facing_child_of_front_facing_surface.get(), 3717 backface_matrix, 3718 gfx::Point3F(), 3719 gfx::PointF(), 3720 gfx::Size(100, 100), 3721 true, 3722 true); 3723 SetLayerPropertiesForTesting(front_facing_child_of_back_facing_surface.get(), 3724 identity_matrix, 3725 gfx::Point3F(), 3726 gfx::PointF(), 3727 gfx::Size(100, 100), 3728 true, 3729 true); 3730 SetLayerPropertiesForTesting(back_facing_child_of_back_facing_surface.get(), 3731 backface_matrix, 3732 gfx::Point3F(), 3733 gfx::PointF(), 3734 gfx::Size(100, 100), 3735 true, 3736 true); 3737 3738 RenderSurfaceLayerList render_surface_layer_list; 3739 LayerTreeHostCommon::CalcDrawPropsMainInputsForTesting inputs( 3740 parent.get(), parent->bounds(), &render_surface_layer_list); 3741 inputs.can_adjust_raster_scales = true; 3742 LayerTreeHostCommon::CalculateDrawProperties(&inputs); 3743 3744 // Verify which render surfaces were created. 3745 EXPECT_FALSE(front_facing_child->render_surface()); 3746 EXPECT_FALSE(back_facing_child->render_surface()); 3747 EXPECT_TRUE(front_facing_surface->render_surface()); 3748 EXPECT_FALSE(back_facing_surface->render_surface()); 3749 EXPECT_FALSE(front_facing_child_of_front_facing_surface->render_surface()); 3750 EXPECT_FALSE(back_facing_child_of_front_facing_surface->render_surface()); 3751 EXPECT_FALSE(front_facing_child_of_back_facing_surface->render_surface()); 3752 EXPECT_FALSE(back_facing_child_of_back_facing_surface->render_surface()); 3753 3754 // Verify the render_surface_layer_list. The back-facing surface should be 3755 // culled. 3756 ASSERT_EQ(2u, render_surface_layer_list.size()); 3757 EXPECT_EQ(parent->id(), render_surface_layer_list.at(0)->id()); 3758 EXPECT_EQ(front_facing_surface->id(), render_surface_layer_list.at(1)->id()); 3759 3760 // Verify root surface's layer list. 3761 ASSERT_EQ( 3762 2u, 3763 render_surface_layer_list.at(0)->render_surface()->layer_list().size()); 3764 EXPECT_EQ(front_facing_child->id(), 3765 render_surface_layer_list.at(0) 3766 ->render_surface()->layer_list().at(0)->id()); 3767 EXPECT_EQ(front_facing_surface->id(), 3768 render_surface_layer_list.at(0) 3769 ->render_surface()->layer_list().at(1)->id()); 3770 3771 // Verify front_facing_surface's layer list. 3772 ASSERT_EQ( 3773 2u, 3774 render_surface_layer_list.at(1)->render_surface()->layer_list().size()); 3775 EXPECT_EQ(front_facing_surface->id(), 3776 render_surface_layer_list.at(1) 3777 ->render_surface()->layer_list().at(0)->id()); 3778 EXPECT_EQ(front_facing_child_of_front_facing_surface->id(), 3779 render_surface_layer_list.at(1) 3780 ->render_surface()->layer_list().at(1)->id()); 3781 } 3782 3783 TEST_F(LayerTreeHostCommonTest, BackFaceCullingWithAnimatingTransforms) { 3784 // Verify that layers are appropriately culled when their back face is showing 3785 // and they are not double sided, while animations are going on. 3786 // 3787 // Layers that are animating do not get culled on the main thread, as their 3788 // transforms should be treated as "unknown" so we can not be sure that their 3789 // back face is really showing. 3790 const gfx::Transform identity_matrix; 3791 scoped_refptr<Layer> parent = Layer::Create(); 3792 scoped_refptr<LayerWithForcedDrawsContent> child = 3793 make_scoped_refptr(new LayerWithForcedDrawsContent()); 3794 scoped_refptr<LayerWithForcedDrawsContent> animating_surface = 3795 make_scoped_refptr(new LayerWithForcedDrawsContent()); 3796 scoped_refptr<LayerWithForcedDrawsContent> child_of_animating_surface = 3797 make_scoped_refptr(new LayerWithForcedDrawsContent()); 3798 scoped_refptr<LayerWithForcedDrawsContent> animating_child = 3799 make_scoped_refptr(new LayerWithForcedDrawsContent()); 3800 scoped_refptr<LayerWithForcedDrawsContent> child2 = 3801 make_scoped_refptr(new LayerWithForcedDrawsContent()); 3802 3803 parent->AddChild(child); 3804 parent->AddChild(animating_surface); 3805 animating_surface->AddChild(child_of_animating_surface); 3806 parent->AddChild(animating_child); 3807 parent->AddChild(child2); 3808 3809 scoped_ptr<FakeLayerTreeHost> host = FakeLayerTreeHost::Create(); 3810 host->SetRootLayer(parent); 3811 3812 // Nothing is double-sided 3813 child->SetDoubleSided(false); 3814 child2->SetDoubleSided(false); 3815 animating_surface->SetDoubleSided(false); 3816 child_of_animating_surface->SetDoubleSided(false); 3817 animating_child->SetDoubleSided(false); 3818 3819 gfx::Transform backface_matrix; 3820 backface_matrix.Translate(50.0, 50.0); 3821 backface_matrix.RotateAboutYAxis(180.0); 3822 backface_matrix.Translate(-50.0, -50.0); 3823 3824 // Make our render surface. 3825 animating_surface->SetForceRenderSurface(true); 3826 3827 // Animate the transform on the render surface. 3828 AddAnimatedTransformToController( 3829 animating_surface->layer_animation_controller(), 10.0, 30, 0); 3830 // This is just an animating layer, not a surface. 3831 AddAnimatedTransformToController( 3832 animating_child->layer_animation_controller(), 10.0, 30, 0); 3833 3834 SetLayerPropertiesForTesting(parent.get(), 3835 identity_matrix, 3836 gfx::Point3F(), 3837 gfx::PointF(), 3838 gfx::Size(100, 100), 3839 true, 3840 false); 3841 SetLayerPropertiesForTesting(child.get(), 3842 backface_matrix, 3843 gfx::Point3F(), 3844 gfx::PointF(), 3845 gfx::Size(100, 100), 3846 true, 3847 false); 3848 SetLayerPropertiesForTesting(animating_surface.get(), 3849 backface_matrix, 3850 gfx::Point3F(), 3851 gfx::PointF(), 3852 gfx::Size(100, 100), 3853 true, 3854 false); 3855 SetLayerPropertiesForTesting(child_of_animating_surface.get(), 3856 backface_matrix, 3857 gfx::Point3F(), 3858 gfx::PointF(), 3859 gfx::Size(100, 100), 3860 true, 3861 false); 3862 SetLayerPropertiesForTesting(animating_child.get(), 3863 backface_matrix, 3864 gfx::Point3F(), 3865 gfx::PointF(), 3866 gfx::Size(100, 100), 3867 true, 3868 false); 3869 SetLayerPropertiesForTesting(child2.get(), 3870 identity_matrix, 3871 gfx::Point3F(), 3872 gfx::PointF(), 3873 gfx::Size(100, 100), 3874 true, 3875 false); 3876 3877 RenderSurfaceLayerList render_surface_layer_list; 3878 LayerTreeHostCommon::CalcDrawPropsMainInputsForTesting inputs( 3879 parent.get(), parent->bounds(), &render_surface_layer_list); 3880 inputs.can_adjust_raster_scales = true; 3881 LayerTreeHostCommon::CalculateDrawProperties(&inputs); 3882 3883 EXPECT_FALSE(child->render_surface()); 3884 EXPECT_TRUE(animating_surface->render_surface()); 3885 EXPECT_FALSE(child_of_animating_surface->render_surface()); 3886 EXPECT_FALSE(animating_child->render_surface()); 3887 EXPECT_FALSE(child2->render_surface()); 3888 3889 // Verify that the animating_child and child_of_animating_surface were not 3890 // culled, but that child was. 3891 ASSERT_EQ(2u, render_surface_layer_list.size()); 3892 EXPECT_EQ(parent->id(), render_surface_layer_list.at(0)->id()); 3893 EXPECT_EQ(animating_surface->id(), render_surface_layer_list.at(1)->id()); 3894 3895 // The non-animating child be culled from the layer list for the parent render 3896 // surface. 3897 ASSERT_EQ( 3898 3u, 3899 render_surface_layer_list.at(0)->render_surface()->layer_list().size()); 3900 EXPECT_EQ(animating_surface->id(), 3901 render_surface_layer_list.at(0) 3902 ->render_surface()->layer_list().at(0)->id()); 3903 EXPECT_EQ(animating_child->id(), 3904 render_surface_layer_list.at(0) 3905 ->render_surface()->layer_list().at(1)->id()); 3906 EXPECT_EQ(child2->id(), 3907 render_surface_layer_list.at(0) 3908 ->render_surface()->layer_list().at(2)->id()); 3909 3910 ASSERT_EQ( 3911 2u, 3912 render_surface_layer_list.at(1)->render_surface()->layer_list().size()); 3913 EXPECT_EQ(animating_surface->id(), 3914 render_surface_layer_list.at(1) 3915 ->render_surface()->layer_list().at(0)->id()); 3916 EXPECT_EQ(child_of_animating_surface->id(), 3917 render_surface_layer_list.at(1) 3918 ->render_surface()->layer_list().at(1)->id()); 3919 3920 EXPECT_FALSE(child2->visible_content_rect().IsEmpty()); 3921 3922 // The animating layers should have a visible content rect that represents the 3923 // area of the front face that is within the viewport. 3924 EXPECT_EQ(animating_child->visible_content_rect(), 3925 gfx::Rect(animating_child->content_bounds())); 3926 EXPECT_EQ(animating_surface->visible_content_rect(), 3927 gfx::Rect(animating_surface->content_bounds())); 3928 // And layers in the subtree of the animating layer should have valid visible 3929 // content rects also. 3930 EXPECT_EQ(child_of_animating_surface->visible_content_rect(), 3931 gfx::Rect(child_of_animating_surface->content_bounds())); 3932 } 3933 3934 TEST_F(LayerTreeHostCommonTest, 3935 BackFaceCullingWithPreserves3dForFlatteningSurface) { 3936 // Verify the behavior of back-face culling for a render surface that is 3937 // created when it flattens its subtree, and its parent has preserves-3d. 3938 3939 const gfx::Transform identity_matrix; 3940 scoped_refptr<Layer> parent = Layer::Create(); 3941 scoped_refptr<LayerWithForcedDrawsContent> front_facing_surface = 3942 make_scoped_refptr(new LayerWithForcedDrawsContent()); 3943 scoped_refptr<LayerWithForcedDrawsContent> back_facing_surface = 3944 make_scoped_refptr(new LayerWithForcedDrawsContent()); 3945 scoped_refptr<LayerWithForcedDrawsContent> child1 = 3946 make_scoped_refptr(new LayerWithForcedDrawsContent()); 3947 scoped_refptr<LayerWithForcedDrawsContent> child2 = 3948 make_scoped_refptr(new LayerWithForcedDrawsContent()); 3949 3950 parent->AddChild(front_facing_surface); 3951 parent->AddChild(back_facing_surface); 3952 front_facing_surface->AddChild(child1); 3953 back_facing_surface->AddChild(child2); 3954 3955 scoped_ptr<FakeLayerTreeHost> host = FakeLayerTreeHost::Create(); 3956 host->SetRootLayer(parent); 3957 3958 // RenderSurfaces are not double-sided 3959 front_facing_surface->SetDoubleSided(false); 3960 back_facing_surface->SetDoubleSided(false); 3961 3962 gfx::Transform backface_matrix; 3963 backface_matrix.Translate(50.0, 50.0); 3964 backface_matrix.RotateAboutYAxis(180.0); 3965 backface_matrix.Translate(-50.0, -50.0); 3966 3967 SetLayerPropertiesForTesting(parent.get(), 3968 identity_matrix, 3969 gfx::Point3F(), 3970 gfx::PointF(), 3971 gfx::Size(100, 100), 3972 false, 3973 true); // parent transform style is preserve3d. 3974 SetLayerPropertiesForTesting(front_facing_surface.get(), 3975 identity_matrix, 3976 gfx::Point3F(), 3977 gfx::PointF(), 3978 gfx::Size(100, 100), 3979 true, 3980 true); // surface transform style is flat. 3981 SetLayerPropertiesForTesting(back_facing_surface.get(), 3982 backface_matrix, 3983 gfx::Point3F(), 3984 gfx::PointF(), 3985 gfx::Size(100, 100), 3986 true, 3987 true); // surface transform style is flat. 3988 SetLayerPropertiesForTesting(child1.get(), 3989 identity_matrix, 3990 gfx::Point3F(), 3991 gfx::PointF(), 3992 gfx::Size(100, 100), 3993 true, 3994 false); 3995 SetLayerPropertiesForTesting(child2.get(), 3996 identity_matrix, 3997 gfx::Point3F(), 3998 gfx::PointF(), 3999 gfx::Size(100, 100), 4000 true, 4001 false); 4002 4003 front_facing_surface->Set3dSortingContextId(1); 4004 back_facing_surface->Set3dSortingContextId(1); 4005 4006 RenderSurfaceLayerList render_surface_layer_list; 4007 LayerTreeHostCommon::CalcDrawPropsMainInputsForTesting inputs( 4008 parent.get(), parent->bounds(), &render_surface_layer_list); 4009 inputs.can_adjust_raster_scales = true; 4010 LayerTreeHostCommon::CalculateDrawProperties(&inputs); 4011 4012 // Verify which render surfaces were created. 4013 EXPECT_TRUE(front_facing_surface->render_surface()); 4014 EXPECT_FALSE( 4015 back_facing_surface->render_surface()); // because it should be culled 4016 EXPECT_FALSE(child1->render_surface()); 4017 EXPECT_FALSE(child2->render_surface()); 4018 4019 // Verify the render_surface_layer_list. The back-facing surface should be 4020 // culled. 4021 ASSERT_EQ(2u, render_surface_layer_list.size()); 4022 EXPECT_EQ(parent->id(), render_surface_layer_list.at(0)->id()); 4023 EXPECT_EQ(front_facing_surface->id(), render_surface_layer_list.at(1)->id()); 4024 4025 // Verify root surface's layer list. 4026 ASSERT_EQ( 4027 1u, 4028 render_surface_layer_list.at(0)->render_surface()->layer_list().size()); 4029 EXPECT_EQ(front_facing_surface->id(), 4030 render_surface_layer_list.at(0) 4031 ->render_surface()->layer_list().at(0)->id()); 4032 4033 // Verify front_facing_surface's layer list. 4034 ASSERT_EQ( 4035 2u, 4036 render_surface_layer_list.at(1)->render_surface()->layer_list().size()); 4037 EXPECT_EQ(front_facing_surface->id(), 4038 render_surface_layer_list.at(1) 4039 ->render_surface()->layer_list().at(0)->id()); 4040 EXPECT_EQ(child1->id(), 4041 render_surface_layer_list.at(1) 4042 ->render_surface()->layer_list().at(1)->id()); 4043 } 4044 4045 class NoScaleContentLayer : public ContentLayer { 4046 public: 4047 static scoped_refptr<NoScaleContentLayer> Create(ContentLayerClient* client) { 4048 return make_scoped_refptr(new NoScaleContentLayer(client)); 4049 } 4050 4051 virtual void CalculateContentsScale(float ideal_contents_scale, 4052 float device_scale_factor, 4053 float page_scale_factor, 4054 float maximum_animation_contents_scale, 4055 bool animating_transform_to_screen, 4056 float* contents_scale_x, 4057 float* contents_scale_y, 4058 gfx::Size* content_bounds) OVERRIDE { 4059 // Skip over the ContentLayer to the base Layer class. 4060 Layer::CalculateContentsScale(ideal_contents_scale, 4061 device_scale_factor, 4062 page_scale_factor, 4063 maximum_animation_contents_scale, 4064 animating_transform_to_screen, 4065 contents_scale_x, 4066 contents_scale_y, 4067 content_bounds); 4068 } 4069 4070 protected: 4071 explicit NoScaleContentLayer(ContentLayerClient* client) 4072 : ContentLayer(client) {} 4073 virtual ~NoScaleContentLayer() {} 4074 }; 4075 4076 scoped_refptr<NoScaleContentLayer> CreateNoScaleDrawableContentLayer( 4077 ContentLayerClient* delegate) { 4078 scoped_refptr<NoScaleContentLayer> to_return = 4079 NoScaleContentLayer::Create(delegate); 4080 to_return->SetIsDrawable(true); 4081 return to_return; 4082 } 4083 4084 TEST_F(LayerTreeHostCommonTest, LayerTransformsInHighDPI) { 4085 // Verify draw and screen space transforms of layers not in a surface. 4086 MockContentLayerClient delegate; 4087 gfx::Transform identity_matrix; 4088 4089 scoped_refptr<ContentLayer> parent = CreateDrawableContentLayer(&delegate); 4090 SetLayerPropertiesForTesting(parent.get(), 4091 identity_matrix, 4092 gfx::Point3F(), 4093 gfx::PointF(), 4094 gfx::Size(100, 100), 4095 false, 4096 true); 4097 4098 scoped_refptr<ContentLayer> child = CreateDrawableContentLayer(&delegate); 4099 SetLayerPropertiesForTesting(child.get(), 4100 identity_matrix, 4101 gfx::Point3F(), 4102 gfx::PointF(2.f, 2.f), 4103 gfx::Size(10, 10), 4104 false, 4105 true); 4106 4107 scoped_refptr<ContentLayer> child_empty = 4108 CreateDrawableContentLayer(&delegate); 4109 SetLayerPropertiesForTesting(child_empty.get(), 4110 identity_matrix, 4111 gfx::Point3F(), 4112 gfx::PointF(2.f, 2.f), 4113 gfx::Size(), 4114 false, 4115 true); 4116 4117 scoped_refptr<NoScaleContentLayer> child_no_scale = 4118 CreateNoScaleDrawableContentLayer(&delegate); 4119 SetLayerPropertiesForTesting(child_no_scale.get(), 4120 identity_matrix, 4121 gfx::Point3F(), 4122 gfx::PointF(2.f, 2.f), 4123 gfx::Size(10, 10), 4124 false, 4125 true); 4126 4127 parent->AddChild(child); 4128 parent->AddChild(child_empty); 4129 parent->AddChild(child_no_scale); 4130 4131 scoped_ptr<FakeLayerTreeHost> host = FakeLayerTreeHost::Create(); 4132 host->SetRootLayer(parent); 4133 4134 float device_scale_factor = 2.5f; 4135 float page_scale_factor = 1.f; 4136 4137 RenderSurfaceLayerList render_surface_layer_list; 4138 LayerTreeHostCommon::CalcDrawPropsMainInputsForTesting inputs( 4139 parent.get(), parent->bounds(), &render_surface_layer_list); 4140 inputs.device_scale_factor = device_scale_factor; 4141 inputs.page_scale_factor = page_scale_factor; 4142 inputs.can_adjust_raster_scales = true; 4143 LayerTreeHostCommon::CalculateDrawProperties(&inputs); 4144 4145 EXPECT_CONTENTS_SCALE_EQ(device_scale_factor * page_scale_factor, parent); 4146 EXPECT_CONTENTS_SCALE_EQ(device_scale_factor * page_scale_factor, child); 4147 EXPECT_CONTENTS_SCALE_EQ(device_scale_factor * page_scale_factor, 4148 child_empty); 4149 EXPECT_CONTENTS_SCALE_EQ(1, child_no_scale); 4150 4151 EXPECT_EQ(1u, render_surface_layer_list.size()); 4152 4153 // Verify parent transforms 4154 gfx::Transform expected_parent_transform; 4155 EXPECT_TRANSFORMATION_MATRIX_EQ(expected_parent_transform, 4156 parent->screen_space_transform()); 4157 EXPECT_TRANSFORMATION_MATRIX_EQ(expected_parent_transform, 4158 parent->draw_transform()); 4159 4160 // Verify results of transformed parent rects 4161 gfx::RectF parent_content_bounds(parent->content_bounds()); 4162 4163 gfx::RectF parent_draw_rect = 4164 MathUtil::MapClippedRect(parent->draw_transform(), parent_content_bounds); 4165 gfx::RectF parent_screen_space_rect = MathUtil::MapClippedRect( 4166 parent->screen_space_transform(), parent_content_bounds); 4167 4168 gfx::RectF expected_parent_draw_rect(parent->bounds()); 4169 expected_parent_draw_rect.Scale(device_scale_factor); 4170 EXPECT_FLOAT_RECT_EQ(expected_parent_draw_rect, parent_draw_rect); 4171 EXPECT_FLOAT_RECT_EQ(expected_parent_draw_rect, parent_screen_space_rect); 4172 4173 // Verify child and child_empty transforms. They should match. 4174 gfx::Transform expected_child_transform; 4175 expected_child_transform.Translate( 4176 device_scale_factor * child->position().x(), 4177 device_scale_factor * child->position().y()); 4178 EXPECT_TRANSFORMATION_MATRIX_EQ(expected_child_transform, 4179 child->draw_transform()); 4180 EXPECT_TRANSFORMATION_MATRIX_EQ(expected_child_transform, 4181 child->screen_space_transform()); 4182 EXPECT_TRANSFORMATION_MATRIX_EQ(expected_child_transform, 4183 child_empty->draw_transform()); 4184 EXPECT_TRANSFORMATION_MATRIX_EQ(expected_child_transform, 4185 child_empty->screen_space_transform()); 4186 4187 // Verify results of transformed child and child_empty rects. They should 4188 // match. 4189 gfx::RectF child_content_bounds(child->content_bounds()); 4190 4191 gfx::RectF child_draw_rect = 4192 MathUtil::MapClippedRect(child->draw_transform(), child_content_bounds); 4193 gfx::RectF child_screen_space_rect = MathUtil::MapClippedRect( 4194 child->screen_space_transform(), child_content_bounds); 4195 4196 gfx::RectF child_empty_draw_rect = MathUtil::MapClippedRect( 4197 child_empty->draw_transform(), child_content_bounds); 4198 gfx::RectF child_empty_screen_space_rect = MathUtil::MapClippedRect( 4199 child_empty->screen_space_transform(), child_content_bounds); 4200 4201 gfx::RectF expected_child_draw_rect(child->position(), child->bounds()); 4202 expected_child_draw_rect.Scale(device_scale_factor); 4203 EXPECT_FLOAT_RECT_EQ(expected_child_draw_rect, child_draw_rect); 4204 EXPECT_FLOAT_RECT_EQ(expected_child_draw_rect, child_screen_space_rect); 4205 EXPECT_FLOAT_RECT_EQ(expected_child_draw_rect, child_empty_draw_rect); 4206 EXPECT_FLOAT_RECT_EQ(expected_child_draw_rect, child_empty_screen_space_rect); 4207 4208 // Verify child_no_scale transforms 4209 gfx::Transform expected_child_no_scale_transform = child->draw_transform(); 4210 // All transforms operate on content rects. The child's content rect 4211 // incorporates device scale, but the child_no_scale does not; add it here. 4212 expected_child_no_scale_transform.Scale(device_scale_factor, 4213 device_scale_factor); 4214 EXPECT_TRANSFORMATION_MATRIX_EQ(expected_child_no_scale_transform, 4215 child_no_scale->draw_transform()); 4216 EXPECT_TRANSFORMATION_MATRIX_EQ(expected_child_no_scale_transform, 4217 child_no_scale->screen_space_transform()); 4218 } 4219 4220 TEST_F(LayerTreeHostCommonTest, SurfaceLayerTransformsInHighDPI) { 4221 // Verify draw and screen space transforms of layers in a surface. 4222 MockContentLayerClient delegate; 4223 gfx::Transform identity_matrix; 4224 4225 gfx::Transform perspective_matrix; 4226 perspective_matrix.ApplyPerspectiveDepth(2.0); 4227 4228 gfx::Transform scale_small_matrix; 4229 scale_small_matrix.Scale(SK_MScalar1 / 10.f, SK_MScalar1 / 12.f); 4230 4231 scoped_refptr<Layer> root = Layer::Create(); 4232 4233 scoped_refptr<ContentLayer> parent = CreateDrawableContentLayer(&delegate); 4234 SetLayerPropertiesForTesting(parent.get(), 4235 identity_matrix, 4236 gfx::Point3F(), 4237 gfx::PointF(), 4238 gfx::Size(100, 100), 4239 false, 4240 true); 4241 4242 scoped_refptr<ContentLayer> perspective_surface = 4243 CreateDrawableContentLayer(&delegate); 4244 SetLayerPropertiesForTesting(perspective_surface.get(), 4245 perspective_matrix * scale_small_matrix, 4246 gfx::Point3F(), 4247 gfx::PointF(2.f, 2.f), 4248 gfx::Size(10, 10), 4249 false, 4250 true); 4251 4252 scoped_refptr<ContentLayer> scale_surface = 4253 CreateDrawableContentLayer(&delegate); 4254 SetLayerPropertiesForTesting(scale_surface.get(), 4255 scale_small_matrix, 4256 gfx::Point3F(), 4257 gfx::PointF(2.f, 2.f), 4258 gfx::Size(10, 10), 4259 false, 4260 true); 4261 4262 perspective_surface->SetForceRenderSurface(true); 4263 scale_surface->SetForceRenderSurface(true); 4264 4265 parent->AddChild(perspective_surface); 4266 parent->AddChild(scale_surface); 4267 root->AddChild(parent); 4268 4269 scoped_ptr<FakeLayerTreeHost> host = FakeLayerTreeHost::Create(); 4270 host->SetRootLayer(root); 4271 4272 float device_scale_factor = 2.5f; 4273 float page_scale_factor = 3.f; 4274 4275 RenderSurfaceLayerList render_surface_layer_list; 4276 LayerTreeHostCommon::CalcDrawPropsMainInputsForTesting inputs( 4277 root.get(), parent->bounds(), &render_surface_layer_list); 4278 inputs.device_scale_factor = device_scale_factor; 4279 inputs.page_scale_factor = page_scale_factor; 4280 inputs.page_scale_application_layer = root; 4281 inputs.can_adjust_raster_scales = true; 4282 LayerTreeHostCommon::CalculateDrawProperties(&inputs); 4283 4284 EXPECT_CONTENTS_SCALE_EQ(device_scale_factor * page_scale_factor, parent); 4285 EXPECT_CONTENTS_SCALE_EQ(device_scale_factor * page_scale_factor, 4286 perspective_surface); 4287 EXPECT_CONTENTS_SCALE_EQ(device_scale_factor * page_scale_factor, 4288 scale_surface); 4289 4290 EXPECT_EQ(3u, render_surface_layer_list.size()); 4291 4292 gfx::Transform expected_parent_draw_transform; 4293 EXPECT_TRANSFORMATION_MATRIX_EQ(expected_parent_draw_transform, 4294 parent->draw_transform()); 4295 4296 // The scaled surface is rendered at its appropriate scale, and drawn 1:1 4297 // into its target. 4298 gfx::Transform expected_scale_surface_draw_transform; 4299 expected_scale_surface_draw_transform.Translate( 4300 device_scale_factor * page_scale_factor * scale_surface->position().x(), 4301 device_scale_factor * page_scale_factor * scale_surface->position().y()); 4302 EXPECT_TRANSFORMATION_MATRIX_EQ( 4303 expected_scale_surface_draw_transform, 4304 scale_surface->render_surface()->draw_transform()); 4305 gfx::Transform expected_scale_surface_layer_draw_transform = 4306 scale_small_matrix; 4307 EXPECT_TRANSFORMATION_MATRIX_EQ(expected_scale_surface_layer_draw_transform, 4308 scale_surface->draw_transform()); 4309 4310 // The scale for the perspective surface is not known, so it is rendered 1:1 4311 // with the screen, and then scaled during drawing. 4312 gfx::Transform expected_perspective_surface_draw_transform; 4313 expected_perspective_surface_draw_transform.Translate( 4314 device_scale_factor * page_scale_factor * 4315 perspective_surface->position().x(), 4316 device_scale_factor * page_scale_factor * 4317 perspective_surface->position().y()); 4318 expected_perspective_surface_draw_transform.PreconcatTransform( 4319 perspective_matrix); 4320 expected_perspective_surface_draw_transform.PreconcatTransform( 4321 scale_small_matrix); 4322 gfx::Transform expected_perspective_surface_layer_draw_transform; 4323 EXPECT_TRANSFORMATION_MATRIX_EQ( 4324 expected_perspective_surface_draw_transform, 4325 perspective_surface->render_surface()->draw_transform()); 4326 EXPECT_TRANSFORMATION_MATRIX_EQ( 4327 expected_perspective_surface_layer_draw_transform, 4328 perspective_surface->draw_transform()); 4329 } 4330 4331 TEST_F(LayerTreeHostCommonTest, 4332 LayerTransformsInHighDPIAccurateScaleZeroChildPosition) { 4333 // Verify draw and screen space transforms of layers not in a surface. 4334 MockContentLayerClient delegate; 4335 gfx::Transform identity_matrix; 4336 4337 scoped_refptr<ContentLayer> parent = CreateDrawableContentLayer(&delegate); 4338 SetLayerPropertiesForTesting(parent.get(), 4339 identity_matrix, 4340 gfx::Point3F(), 4341 gfx::PointF(), 4342 gfx::Size(133, 133), 4343 false, 4344 true); 4345 4346 scoped_refptr<ContentLayer> child = CreateDrawableContentLayer(&delegate); 4347 SetLayerPropertiesForTesting(child.get(), 4348 identity_matrix, 4349 gfx::Point3F(), 4350 gfx::PointF(), 4351 gfx::Size(13, 13), 4352 false, 4353 true); 4354 4355 scoped_refptr<NoScaleContentLayer> child_no_scale = 4356 CreateNoScaleDrawableContentLayer(&delegate); 4357 SetLayerPropertiesForTesting(child_no_scale.get(), 4358 identity_matrix, 4359 gfx::Point3F(), 4360 gfx::PointF(), 4361 gfx::Size(13, 13), 4362 false, 4363 true); 4364 4365 parent->AddChild(child); 4366 parent->AddChild(child_no_scale); 4367 4368 scoped_ptr<FakeLayerTreeHost> host = FakeLayerTreeHost::Create(); 4369 host->SetRootLayer(parent); 4370 4371 float device_scale_factor = 1.7f; 4372 float page_scale_factor = 1.f; 4373 4374 RenderSurfaceLayerList render_surface_layer_list; 4375 LayerTreeHostCommon::CalcDrawPropsMainInputsForTesting inputs( 4376 parent.get(), parent->bounds(), &render_surface_layer_list); 4377 inputs.device_scale_factor = device_scale_factor; 4378 inputs.page_scale_factor = page_scale_factor; 4379 inputs.page_scale_application_layer = parent.get(); 4380 inputs.can_adjust_raster_scales = true; 4381 LayerTreeHostCommon::CalculateDrawProperties(&inputs); 4382 4383 EXPECT_CONTENTS_SCALE_EQ(device_scale_factor * page_scale_factor, parent); 4384 EXPECT_CONTENTS_SCALE_EQ(device_scale_factor * page_scale_factor, child); 4385 EXPECT_CONTENTS_SCALE_EQ(1, child_no_scale); 4386 4387 EXPECT_EQ(1u, render_surface_layer_list.size()); 4388 4389 // Verify parent transforms 4390 gfx::Transform expected_parent_transform; 4391 EXPECT_TRANSFORMATION_MATRIX_EQ(expected_parent_transform, 4392 parent->screen_space_transform()); 4393 EXPECT_TRANSFORMATION_MATRIX_EQ(expected_parent_transform, 4394 parent->draw_transform()); 4395 4396 // Verify results of transformed parent rects 4397 gfx::RectF parent_content_bounds(parent->content_bounds()); 4398 4399 gfx::RectF parent_draw_rect = 4400 MathUtil::MapClippedRect(parent->draw_transform(), parent_content_bounds); 4401 gfx::RectF parent_screen_space_rect = MathUtil::MapClippedRect( 4402 parent->screen_space_transform(), parent_content_bounds); 4403 4404 gfx::RectF expected_parent_draw_rect(parent->bounds()); 4405 expected_parent_draw_rect.Scale(device_scale_factor); 4406 expected_parent_draw_rect.set_width(ceil(expected_parent_draw_rect.width())); 4407 expected_parent_draw_rect.set_height( 4408 ceil(expected_parent_draw_rect.height())); 4409 EXPECT_FLOAT_RECT_EQ(expected_parent_draw_rect, parent_draw_rect); 4410 EXPECT_FLOAT_RECT_EQ(expected_parent_draw_rect, parent_screen_space_rect); 4411 4412 // Verify child transforms 4413 gfx::Transform expected_child_transform; 4414 EXPECT_TRANSFORMATION_MATRIX_EQ(expected_child_transform, 4415 child->draw_transform()); 4416 EXPECT_TRANSFORMATION_MATRIX_EQ(expected_child_transform, 4417 child->screen_space_transform()); 4418 4419 // Verify results of transformed child rects 4420 gfx::RectF child_content_bounds(child->content_bounds()); 4421 4422 gfx::RectF child_draw_rect = 4423 MathUtil::MapClippedRect(child->draw_transform(), child_content_bounds); 4424 gfx::RectF child_screen_space_rect = MathUtil::MapClippedRect( 4425 child->screen_space_transform(), child_content_bounds); 4426 4427 gfx::RectF expected_child_draw_rect(child->bounds()); 4428 expected_child_draw_rect.Scale(device_scale_factor); 4429 expected_child_draw_rect.set_width(ceil(expected_child_draw_rect.width())); 4430 expected_child_draw_rect.set_height(ceil(expected_child_draw_rect.height())); 4431 EXPECT_FLOAT_RECT_EQ(expected_child_draw_rect, child_draw_rect); 4432 EXPECT_FLOAT_RECT_EQ(expected_child_draw_rect, child_screen_space_rect); 4433 4434 // Verify child_no_scale transforms 4435 gfx::Transform expected_child_no_scale_transform = child->draw_transform(); 4436 // All transforms operate on content rects. The child's content rect 4437 // incorporates device scale, but the child_no_scale does not; add it here. 4438 expected_child_no_scale_transform.Scale(device_scale_factor, 4439 device_scale_factor); 4440 EXPECT_TRANSFORMATION_MATRIX_EQ(expected_child_no_scale_transform, 4441 child_no_scale->draw_transform()); 4442 EXPECT_TRANSFORMATION_MATRIX_EQ(expected_child_no_scale_transform, 4443 child_no_scale->screen_space_transform()); 4444 } 4445 4446 TEST_F(LayerTreeHostCommonTest, ContentsScale) { 4447 MockContentLayerClient delegate; 4448 gfx::Transform identity_matrix; 4449 4450 gfx::Transform parent_scale_matrix; 4451 SkMScalar initial_parent_scale = 1.75; 4452 parent_scale_matrix.Scale(initial_parent_scale, initial_parent_scale); 4453 4454 gfx::Transform child_scale_matrix; 4455 SkMScalar initial_child_scale = 1.25; 4456 child_scale_matrix.Scale(initial_child_scale, initial_child_scale); 4457 4458 scoped_refptr<Layer> root = Layer::Create(); 4459 root->SetBounds(gfx::Size(100, 100)); 4460 4461 scoped_refptr<ContentLayer> parent = CreateDrawableContentLayer(&delegate); 4462 SetLayerPropertiesForTesting(parent.get(), 4463 parent_scale_matrix, 4464 gfx::Point3F(), 4465 gfx::PointF(), 4466 gfx::Size(100, 100), 4467 false, 4468 true); 4469 4470 scoped_refptr<ContentLayer> child_scale = 4471 CreateDrawableContentLayer(&delegate); 4472 SetLayerPropertiesForTesting(child_scale.get(), 4473 child_scale_matrix, 4474 gfx::Point3F(), 4475 gfx::PointF(2.f, 2.f), 4476 gfx::Size(10, 10), 4477 false, 4478 true); 4479 4480 scoped_refptr<ContentLayer> child_empty = 4481 CreateDrawableContentLayer(&delegate); 4482 SetLayerPropertiesForTesting(child_empty.get(), 4483 child_scale_matrix, 4484 gfx::Point3F(), 4485 gfx::PointF(2.f, 2.f), 4486 gfx::Size(), 4487 false, 4488 true); 4489 4490 scoped_refptr<NoScaleContentLayer> child_no_scale = 4491 CreateNoScaleDrawableContentLayer(&delegate); 4492 SetLayerPropertiesForTesting(child_no_scale.get(), 4493 child_scale_matrix, 4494 gfx::Point3F(), 4495 gfx::PointF(12.f, 12.f), 4496 gfx::Size(10, 10), 4497 false, 4498 true); 4499 4500 root->AddChild(parent); 4501 4502 parent->AddChild(child_scale); 4503 parent->AddChild(child_empty); 4504 parent->AddChild(child_no_scale); 4505 4506 scoped_ptr<FakeLayerTreeHost> host = FakeLayerTreeHost::Create(); 4507 host->SetRootLayer(root); 4508 4509 float device_scale_factor = 2.5f; 4510 float page_scale_factor = 1.f; 4511 4512 { 4513 RenderSurfaceLayerList render_surface_layer_list; 4514 LayerTreeHostCommon::CalcDrawPropsMainInputsForTesting inputs( 4515 root.get(), root->bounds(), &render_surface_layer_list); 4516 inputs.device_scale_factor = device_scale_factor; 4517 inputs.page_scale_factor = page_scale_factor; 4518 inputs.page_scale_application_layer = root.get(); 4519 inputs.can_adjust_raster_scales = true; 4520 LayerTreeHostCommon::CalculateDrawProperties(&inputs); 4521 4522 EXPECT_CONTENTS_SCALE_EQ(device_scale_factor * page_scale_factor * 4523 initial_parent_scale, parent); 4524 EXPECT_CONTENTS_SCALE_EQ(device_scale_factor * page_scale_factor * 4525 initial_parent_scale * initial_child_scale, 4526 child_scale); 4527 EXPECT_CONTENTS_SCALE_EQ(device_scale_factor * page_scale_factor * 4528 initial_parent_scale * initial_child_scale, 4529 child_empty); 4530 EXPECT_CONTENTS_SCALE_EQ(1, child_no_scale); 4531 4532 // The parent is scaled up and shouldn't need to scale during draw. The 4533 // child that can scale its contents should also not need to scale during 4534 // draw. This shouldn't change if the child has empty bounds. The other 4535 // children should. 4536 EXPECT_FLOAT_EQ(1.0, parent->draw_transform().matrix().get(0, 0)); 4537 EXPECT_FLOAT_EQ(1.0, parent->draw_transform().matrix().get(1, 1)); 4538 EXPECT_FLOAT_EQ(1.0, child_scale->draw_transform().matrix().get(0, 0)); 4539 EXPECT_FLOAT_EQ(1.0, child_scale->draw_transform().matrix().get(1, 1)); 4540 EXPECT_FLOAT_EQ(1.0, child_empty->draw_transform().matrix().get(0, 0)); 4541 EXPECT_FLOAT_EQ(1.0, child_empty->draw_transform().matrix().get(1, 1)); 4542 EXPECT_FLOAT_EQ(device_scale_factor * page_scale_factor * 4543 initial_parent_scale * initial_child_scale, 4544 child_no_scale->draw_transform().matrix().get(0, 0)); 4545 EXPECT_FLOAT_EQ(device_scale_factor * page_scale_factor * 4546 initial_parent_scale * initial_child_scale, 4547 child_no_scale->draw_transform().matrix().get(1, 1)); 4548 } 4549 4550 // If the device_scale_factor or page_scale_factor changes, then it should be 4551 // updated using the initial transform as the raster scale. 4552 device_scale_factor = 2.25f; 4553 page_scale_factor = 1.25f; 4554 4555 { 4556 RenderSurfaceLayerList render_surface_layer_list; 4557 LayerTreeHostCommon::CalcDrawPropsMainInputsForTesting inputs( 4558 root.get(), root->bounds(), &render_surface_layer_list); 4559 inputs.device_scale_factor = device_scale_factor; 4560 inputs.page_scale_factor = page_scale_factor; 4561 inputs.page_scale_application_layer = root.get(); 4562 inputs.can_adjust_raster_scales = true; 4563 LayerTreeHostCommon::CalculateDrawProperties(&inputs); 4564 4565 EXPECT_CONTENTS_SCALE_EQ( 4566 device_scale_factor * page_scale_factor * initial_parent_scale, parent); 4567 EXPECT_CONTENTS_SCALE_EQ(device_scale_factor * page_scale_factor * 4568 initial_parent_scale * initial_child_scale, 4569 child_scale); 4570 EXPECT_CONTENTS_SCALE_EQ(device_scale_factor * page_scale_factor * 4571 initial_parent_scale * initial_child_scale, 4572 child_empty); 4573 EXPECT_CONTENTS_SCALE_EQ(1, child_no_scale); 4574 } 4575 4576 // If the transform changes, we expect the raster scale to be reset to 1.0. 4577 SkMScalar second_child_scale = 1.75; 4578 child_scale_matrix.Scale(second_child_scale / initial_child_scale, 4579 second_child_scale / initial_child_scale); 4580 child_scale->SetTransform(child_scale_matrix); 4581 child_empty->SetTransform(child_scale_matrix); 4582 4583 { 4584 RenderSurfaceLayerList render_surface_layer_list; 4585 LayerTreeHostCommon::CalcDrawPropsMainInputsForTesting inputs( 4586 root.get(), root->bounds(), &render_surface_layer_list); 4587 inputs.device_scale_factor = device_scale_factor; 4588 inputs.page_scale_factor = page_scale_factor; 4589 inputs.page_scale_application_layer = root.get(); 4590 inputs.can_adjust_raster_scales = true; 4591 LayerTreeHostCommon::CalculateDrawProperties(&inputs); 4592 4593 EXPECT_CONTENTS_SCALE_EQ(device_scale_factor * page_scale_factor * 4594 initial_parent_scale, 4595 parent); 4596 EXPECT_CONTENTS_SCALE_EQ(device_scale_factor * page_scale_factor, 4597 child_scale); 4598 EXPECT_CONTENTS_SCALE_EQ(device_scale_factor * page_scale_factor, 4599 child_empty); 4600 EXPECT_CONTENTS_SCALE_EQ(1, child_no_scale); 4601 } 4602 4603 // If the device_scale_factor or page_scale_factor changes, then it should be 4604 // updated, but still using 1.0 as the raster scale. 4605 device_scale_factor = 2.75f; 4606 page_scale_factor = 1.75f; 4607 4608 { 4609 RenderSurfaceLayerList render_surface_layer_list; 4610 LayerTreeHostCommon::CalcDrawPropsMainInputsForTesting inputs( 4611 root.get(), root->bounds(), &render_surface_layer_list); 4612 inputs.device_scale_factor = device_scale_factor; 4613 inputs.page_scale_factor = page_scale_factor; 4614 inputs.page_scale_application_layer = root.get(); 4615 inputs.can_adjust_raster_scales = true; 4616 LayerTreeHostCommon::CalculateDrawProperties(&inputs); 4617 4618 EXPECT_CONTENTS_SCALE_EQ(device_scale_factor * page_scale_factor * 4619 initial_parent_scale, 4620 parent); 4621 EXPECT_CONTENTS_SCALE_EQ(device_scale_factor * page_scale_factor, 4622 child_scale); 4623 EXPECT_CONTENTS_SCALE_EQ(device_scale_factor * page_scale_factor, 4624 child_empty); 4625 EXPECT_CONTENTS_SCALE_EQ(1, child_no_scale); 4626 } 4627 } 4628 4629 TEST_F(LayerTreeHostCommonTest, 4630 ContentsScale_LayerTransformsDontAffectContentsScale) { 4631 MockContentLayerClient delegate; 4632 gfx::Transform identity_matrix; 4633 4634 gfx::Transform parent_scale_matrix; 4635 SkMScalar initial_parent_scale = 1.75; 4636 parent_scale_matrix.Scale(initial_parent_scale, initial_parent_scale); 4637 4638 gfx::Transform child_scale_matrix; 4639 SkMScalar initial_child_scale = 1.25; 4640 child_scale_matrix.Scale(initial_child_scale, initial_child_scale); 4641 4642 scoped_refptr<Layer> root = Layer::Create(); 4643 root->SetBounds(gfx::Size(100, 100)); 4644 4645 scoped_refptr<ContentLayer> parent = CreateDrawableContentLayer(&delegate); 4646 SetLayerPropertiesForTesting(parent.get(), 4647 parent_scale_matrix, 4648 gfx::Point3F(), 4649 gfx::PointF(), 4650 gfx::Size(100, 100), 4651 false, 4652 true); 4653 4654 scoped_refptr<ContentLayer> child_scale = 4655 CreateDrawableContentLayer(&delegate); 4656 SetLayerPropertiesForTesting(child_scale.get(), 4657 child_scale_matrix, 4658 gfx::Point3F(), 4659 gfx::PointF(2.f, 2.f), 4660 gfx::Size(10, 10), 4661 false, 4662 true); 4663 4664 scoped_refptr<ContentLayer> child_empty = 4665 CreateDrawableContentLayer(&delegate); 4666 SetLayerPropertiesForTesting(child_empty.get(), 4667 child_scale_matrix, 4668 gfx::Point3F(), 4669 gfx::PointF(2.f, 2.f), 4670 gfx::Size(), 4671 false, 4672 true); 4673 4674 scoped_refptr<NoScaleContentLayer> child_no_scale = 4675 CreateNoScaleDrawableContentLayer(&delegate); 4676 SetLayerPropertiesForTesting(child_no_scale.get(), 4677 child_scale_matrix, 4678 gfx::Point3F(), 4679 gfx::PointF(12.f, 12.f), 4680 gfx::Size(10, 10), 4681 false, 4682 true); 4683 4684 root->AddChild(parent); 4685 4686 parent->AddChild(child_scale); 4687 parent->AddChild(child_empty); 4688 parent->AddChild(child_no_scale); 4689 4690 scoped_ptr<FakeLayerTreeHost> host = FakeLayerTreeHost::Create(); 4691 host->SetRootLayer(root); 4692 4693 RenderSurfaceLayerList render_surface_layer_list; 4694 4695 float device_scale_factor = 2.5f; 4696 float page_scale_factor = 1.f; 4697 4698 LayerTreeHostCommon::CalcDrawPropsMainInputsForTesting inputs( 4699 root.get(), root->bounds(), &render_surface_layer_list); 4700 inputs.device_scale_factor = device_scale_factor; 4701 inputs.page_scale_factor = page_scale_factor; 4702 inputs.page_scale_application_layer = root.get(), 4703 LayerTreeHostCommon::CalculateDrawProperties(&inputs); 4704 4705 EXPECT_CONTENTS_SCALE_EQ(device_scale_factor * page_scale_factor, parent); 4706 EXPECT_CONTENTS_SCALE_EQ(device_scale_factor * page_scale_factor, 4707 child_scale); 4708 EXPECT_CONTENTS_SCALE_EQ(device_scale_factor * page_scale_factor, 4709 child_empty); 4710 EXPECT_CONTENTS_SCALE_EQ(1, child_no_scale); 4711 4712 // Since the transform scale does not affect contents scale, it should affect 4713 // the draw transform instead. 4714 EXPECT_FLOAT_EQ(initial_parent_scale, 4715 parent->draw_transform().matrix().get(0, 0)); 4716 EXPECT_FLOAT_EQ(initial_parent_scale, 4717 parent->draw_transform().matrix().get(1, 1)); 4718 EXPECT_FLOAT_EQ(initial_parent_scale * initial_child_scale, 4719 child_scale->draw_transform().matrix().get(0, 0)); 4720 EXPECT_FLOAT_EQ(initial_parent_scale * initial_child_scale, 4721 child_scale->draw_transform().matrix().get(1, 1)); 4722 EXPECT_FLOAT_EQ(initial_parent_scale * initial_child_scale, 4723 child_empty->draw_transform().matrix().get(0, 0)); 4724 EXPECT_FLOAT_EQ(initial_parent_scale * initial_child_scale, 4725 child_empty->draw_transform().matrix().get(1, 1)); 4726 EXPECT_FLOAT_EQ(device_scale_factor * page_scale_factor * 4727 initial_parent_scale * initial_child_scale, 4728 child_no_scale->draw_transform().matrix().get(0, 0)); 4729 EXPECT_FLOAT_EQ(device_scale_factor * page_scale_factor * 4730 initial_parent_scale * initial_child_scale, 4731 child_no_scale->draw_transform().matrix().get(1, 1)); 4732 } 4733 4734 TEST_F(LayerTreeHostCommonTest, SmallContentsScale) { 4735 MockContentLayerClient delegate; 4736 gfx::Transform identity_matrix; 4737 4738 gfx::Transform parent_scale_matrix; 4739 SkMScalar initial_parent_scale = 1.75; 4740 parent_scale_matrix.Scale(initial_parent_scale, initial_parent_scale); 4741 4742 gfx::Transform child_scale_matrix; 4743 SkMScalar initial_child_scale = 0.25; 4744 child_scale_matrix.Scale(initial_child_scale, initial_child_scale); 4745 4746 scoped_refptr<Layer> root = Layer::Create(); 4747 root->SetBounds(gfx::Size(100, 100)); 4748 4749 scoped_refptr<ContentLayer> parent = CreateDrawableContentLayer(&delegate); 4750 SetLayerPropertiesForTesting(parent.get(), 4751 parent_scale_matrix, 4752 gfx::Point3F(), 4753 gfx::PointF(), 4754 gfx::Size(100, 100), 4755 false, 4756 true); 4757 4758 scoped_refptr<ContentLayer> child_scale = 4759 CreateDrawableContentLayer(&delegate); 4760 SetLayerPropertiesForTesting(child_scale.get(), 4761 child_scale_matrix, 4762 gfx::Point3F(), 4763 gfx::PointF(2.f, 2.f), 4764 gfx::Size(10, 10), 4765 false, 4766 true); 4767 4768 root->AddChild(parent); 4769 4770 parent->AddChild(child_scale); 4771 4772 scoped_ptr<FakeLayerTreeHost> host = FakeLayerTreeHost::Create(); 4773 host->SetRootLayer(root); 4774 4775 float device_scale_factor = 2.5f; 4776 float page_scale_factor = 0.01f; 4777 4778 { 4779 RenderSurfaceLayerList render_surface_layer_list; 4780 LayerTreeHostCommon::CalcDrawPropsMainInputsForTesting inputs( 4781 root.get(), root->bounds(), &render_surface_layer_list); 4782 inputs.device_scale_factor = device_scale_factor; 4783 inputs.page_scale_factor = page_scale_factor; 4784 inputs.page_scale_application_layer = root.get(); 4785 inputs.can_adjust_raster_scales = true; 4786 LayerTreeHostCommon::CalculateDrawProperties(&inputs); 4787 4788 EXPECT_CONTENTS_SCALE_EQ(device_scale_factor * page_scale_factor * 4789 initial_parent_scale, 4790 parent); 4791 // The child's scale is < 1, so we should not save and use that scale 4792 // factor. 4793 EXPECT_CONTENTS_SCALE_EQ(device_scale_factor * page_scale_factor * 1, 4794 child_scale); 4795 } 4796 4797 // When chilld's total scale becomes >= 1, we should save and use that scale 4798 // factor. 4799 child_scale_matrix.MakeIdentity(); 4800 SkMScalar final_child_scale = 0.75; 4801 child_scale_matrix.Scale(final_child_scale, final_child_scale); 4802 child_scale->SetTransform(child_scale_matrix); 4803 4804 { 4805 RenderSurfaceLayerList render_surface_layer_list; 4806 LayerTreeHostCommon::CalcDrawPropsMainInputsForTesting inputs( 4807 root.get(), root->bounds(), &render_surface_layer_list); 4808 inputs.device_scale_factor = device_scale_factor; 4809 inputs.page_scale_factor = page_scale_factor; 4810 inputs.page_scale_application_layer = root.get(); 4811 inputs.can_adjust_raster_scales = true; 4812 LayerTreeHostCommon::CalculateDrawProperties(&inputs); 4813 4814 EXPECT_CONTENTS_SCALE_EQ(device_scale_factor * page_scale_factor * 4815 initial_parent_scale, 4816 parent); 4817 EXPECT_CONTENTS_SCALE_EQ(device_scale_factor * page_scale_factor * 4818 initial_parent_scale * final_child_scale, 4819 child_scale); 4820 } 4821 } 4822 4823 TEST_F(LayerTreeHostCommonTest, ContentsScaleForSurfaces) { 4824 MockContentLayerClient delegate; 4825 gfx::Transform identity_matrix; 4826 4827 gfx::Transform parent_scale_matrix; 4828 SkMScalar initial_parent_scale = 2.0; 4829 parent_scale_matrix.Scale(initial_parent_scale, initial_parent_scale); 4830 4831 gfx::Transform child_scale_matrix; 4832 SkMScalar initial_child_scale = 3.0; 4833 child_scale_matrix.Scale(initial_child_scale, initial_child_scale); 4834 4835 scoped_refptr<Layer> root = Layer::Create(); 4836 root->SetBounds(gfx::Size(100, 100)); 4837 4838 scoped_refptr<ContentLayer> parent = CreateDrawableContentLayer(&delegate); 4839 SetLayerPropertiesForTesting(parent.get(), 4840 parent_scale_matrix, 4841 gfx::Point3F(), 4842 gfx::PointF(), 4843 gfx::Size(100, 100), 4844 false, 4845 true); 4846 4847 scoped_refptr<ContentLayer> surface_scale = 4848 CreateDrawableContentLayer(&delegate); 4849 SetLayerPropertiesForTesting(surface_scale.get(), 4850 child_scale_matrix, 4851 gfx::Point3F(), 4852 gfx::PointF(2.f, 2.f), 4853 gfx::Size(10, 10), 4854 false, 4855 true); 4856 4857 scoped_refptr<ContentLayer> surface_scale_child_scale = 4858 CreateDrawableContentLayer(&delegate); 4859 SetLayerPropertiesForTesting(surface_scale_child_scale.get(), 4860 child_scale_matrix, 4861 gfx::Point3F(), 4862 gfx::PointF(), 4863 gfx::Size(10, 10), 4864 false, 4865 true); 4866 4867 scoped_refptr<NoScaleContentLayer> surface_scale_child_no_scale = 4868 CreateNoScaleDrawableContentLayer(&delegate); 4869 SetLayerPropertiesForTesting(surface_scale_child_no_scale.get(), 4870 child_scale_matrix, 4871 gfx::Point3F(), 4872 gfx::PointF(), 4873 gfx::Size(10, 10), 4874 false, 4875 true); 4876 4877 scoped_refptr<NoScaleContentLayer> surface_no_scale = 4878 CreateNoScaleDrawableContentLayer(&delegate); 4879 SetLayerPropertiesForTesting(surface_no_scale.get(), 4880 child_scale_matrix, 4881 gfx::Point3F(), 4882 gfx::PointF(12.f, 12.f), 4883 gfx::Size(10, 10), 4884 false, 4885 true); 4886 4887 scoped_refptr<ContentLayer> surface_no_scale_child_scale = 4888 CreateDrawableContentLayer(&delegate); 4889 SetLayerPropertiesForTesting(surface_no_scale_child_scale.get(), 4890 child_scale_matrix, 4891 gfx::Point3F(), 4892 gfx::PointF(), 4893 gfx::Size(10, 10), 4894 false, 4895 true); 4896 4897 scoped_refptr<NoScaleContentLayer> surface_no_scale_child_no_scale = 4898 CreateNoScaleDrawableContentLayer(&delegate); 4899 SetLayerPropertiesForTesting(surface_no_scale_child_no_scale.get(), 4900 child_scale_matrix, 4901 gfx::Point3F(), 4902 gfx::PointF(), 4903 gfx::Size(10, 10), 4904 false, 4905 true); 4906 4907 root->AddChild(parent); 4908 4909 parent->AddChild(surface_scale); 4910 parent->AddChild(surface_no_scale); 4911 4912 surface_scale->SetForceRenderSurface(true); 4913 surface_scale->AddChild(surface_scale_child_scale); 4914 surface_scale->AddChild(surface_scale_child_no_scale); 4915 4916 surface_no_scale->SetForceRenderSurface(true); 4917 surface_no_scale->AddChild(surface_no_scale_child_scale); 4918 surface_no_scale->AddChild(surface_no_scale_child_no_scale); 4919 4920 scoped_ptr<FakeLayerTreeHost> host = FakeLayerTreeHost::Create(); 4921 host->SetRootLayer(root); 4922 4923 SkMScalar device_scale_factor = 5; 4924 SkMScalar page_scale_factor = 7; 4925 4926 RenderSurfaceLayerList render_surface_layer_list; 4927 LayerTreeHostCommon::CalcDrawPropsMainInputsForTesting inputs( 4928 root.get(), root->bounds(), &render_surface_layer_list); 4929 inputs.device_scale_factor = device_scale_factor; 4930 inputs.page_scale_factor = page_scale_factor; 4931 inputs.page_scale_application_layer = root.get(); 4932 inputs.can_adjust_raster_scales = true; 4933 LayerTreeHostCommon::CalculateDrawProperties(&inputs); 4934 4935 EXPECT_CONTENTS_SCALE_EQ( 4936 device_scale_factor * page_scale_factor * initial_parent_scale, parent); 4937 EXPECT_CONTENTS_SCALE_EQ(device_scale_factor * page_scale_factor * 4938 initial_parent_scale * initial_child_scale, 4939 surface_scale); 4940 EXPECT_CONTENTS_SCALE_EQ(1, surface_no_scale); 4941 EXPECT_CONTENTS_SCALE_EQ( 4942 device_scale_factor * page_scale_factor * initial_parent_scale * 4943 initial_child_scale * initial_child_scale, 4944 surface_scale_child_scale); 4945 EXPECT_CONTENTS_SCALE_EQ(1, surface_scale_child_no_scale); 4946 EXPECT_CONTENTS_SCALE_EQ( 4947 device_scale_factor * page_scale_factor * initial_parent_scale * 4948 initial_child_scale * initial_child_scale, 4949 surface_no_scale_child_scale); 4950 EXPECT_CONTENTS_SCALE_EQ(1, surface_no_scale_child_no_scale); 4951 4952 // The parent is scaled up and shouldn't need to scale during draw. 4953 EXPECT_FLOAT_EQ(1.0, parent->draw_transform().matrix().get(0, 0)); 4954 EXPECT_FLOAT_EQ(1.0, parent->draw_transform().matrix().get(1, 1)); 4955 4956 // RenderSurfaces should always be 1:1 with their target. 4957 EXPECT_FLOAT_EQ( 4958 1.0, 4959 surface_scale->render_surface()->draw_transform().matrix().get(0, 0)); 4960 EXPECT_FLOAT_EQ( 4961 1.0, 4962 surface_scale->render_surface()->draw_transform().matrix().get(1, 1)); 4963 4964 // The surface_scale can apply contents scale so the layer shouldn't need to 4965 // scale during draw. 4966 EXPECT_FLOAT_EQ(1.0, surface_scale->draw_transform().matrix().get(0, 0)); 4967 EXPECT_FLOAT_EQ(1.0, surface_scale->draw_transform().matrix().get(1, 1)); 4968 4969 // The surface_scale_child_scale can apply contents scale so it shouldn't need 4970 // to scale during draw. 4971 EXPECT_FLOAT_EQ( 4972 1.0, surface_scale_child_scale->draw_transform().matrix().get(0, 0)); 4973 EXPECT_FLOAT_EQ( 4974 1.0, surface_scale_child_scale->draw_transform().matrix().get(1, 1)); 4975 4976 // The surface_scale_child_no_scale can not apply contents scale, so it needs 4977 // to be scaled during draw. 4978 EXPECT_FLOAT_EQ( 4979 device_scale_factor * page_scale_factor * initial_parent_scale * 4980 initial_child_scale * initial_child_scale, 4981 surface_scale_child_no_scale->draw_transform().matrix().get(0, 0)); 4982 EXPECT_FLOAT_EQ( 4983 device_scale_factor * page_scale_factor * initial_parent_scale * 4984 initial_child_scale * initial_child_scale, 4985 surface_scale_child_no_scale->draw_transform().matrix().get(1, 1)); 4986 4987 // RenderSurfaces should always be 1:1 with their target. 4988 EXPECT_FLOAT_EQ( 4989 1.0, 4990 surface_no_scale->render_surface()->draw_transform().matrix().get(0, 0)); 4991 EXPECT_FLOAT_EQ( 4992 1.0, 4993 surface_no_scale->render_surface()->draw_transform().matrix().get(1, 1)); 4994 4995 // The surface_no_scale layer can not apply contents scale, so it needs to be 4996 // scaled during draw. 4997 EXPECT_FLOAT_EQ(device_scale_factor * page_scale_factor * 4998 initial_parent_scale * initial_child_scale, 4999 surface_no_scale->draw_transform().matrix().get(0, 0)); 5000 EXPECT_FLOAT_EQ(device_scale_factor * page_scale_factor * 5001 initial_parent_scale * initial_child_scale, 5002 surface_no_scale->draw_transform().matrix().get(1, 1)); 5003 5004 // The surface_scale_child_scale can apply contents scale so it shouldn't need 5005 // to scale during draw. 5006 EXPECT_FLOAT_EQ( 5007 1.0, surface_no_scale_child_scale->draw_transform().matrix().get(0, 0)); 5008 EXPECT_FLOAT_EQ( 5009 1.0, surface_no_scale_child_scale->draw_transform().matrix().get(1, 1)); 5010 5011 // The surface_scale_child_no_scale can not apply contents scale, so it needs 5012 // to be scaled during draw. 5013 EXPECT_FLOAT_EQ( 5014 device_scale_factor * page_scale_factor * initial_parent_scale * 5015 initial_child_scale * initial_child_scale, 5016 surface_no_scale_child_no_scale->draw_transform().matrix().get(0, 0)); 5017 EXPECT_FLOAT_EQ( 5018 device_scale_factor * page_scale_factor * initial_parent_scale * 5019 initial_child_scale * initial_child_scale, 5020 surface_no_scale_child_no_scale->draw_transform().matrix().get(1, 1)); 5021 } 5022 5023 TEST_F(LayerTreeHostCommonTest, 5024 ContentsScaleForSurfaces_LayerTransformsDontAffectContentsScale) { 5025 MockContentLayerClient delegate; 5026 gfx::Transform identity_matrix; 5027 5028 gfx::Transform parent_scale_matrix; 5029 SkMScalar initial_parent_scale = 2.0; 5030 parent_scale_matrix.Scale(initial_parent_scale, initial_parent_scale); 5031 5032 gfx::Transform child_scale_matrix; 5033 SkMScalar initial_child_scale = 3.0; 5034 child_scale_matrix.Scale(initial_child_scale, initial_child_scale); 5035 5036 scoped_refptr<Layer> root = Layer::Create(); 5037 root->SetBounds(gfx::Size(100, 100)); 5038 5039 scoped_refptr<ContentLayer> parent = CreateDrawableContentLayer(&delegate); 5040 SetLayerPropertiesForTesting(parent.get(), 5041 parent_scale_matrix, 5042 gfx::Point3F(), 5043 gfx::PointF(), 5044 gfx::Size(100, 100), 5045 false, 5046 true); 5047 5048 scoped_refptr<ContentLayer> surface_scale = 5049 CreateDrawableContentLayer(&delegate); 5050 SetLayerPropertiesForTesting(surface_scale.get(), 5051 child_scale_matrix, 5052 gfx::Point3F(), 5053 gfx::PointF(2.f, 2.f), 5054 gfx::Size(10, 10), 5055 false, 5056 true); 5057 5058 scoped_refptr<ContentLayer> surface_scale_child_scale = 5059 CreateDrawableContentLayer(&delegate); 5060 SetLayerPropertiesForTesting(surface_scale_child_scale.get(), 5061 child_scale_matrix, 5062 gfx::Point3F(), 5063 gfx::PointF(), 5064 gfx::Size(10, 10), 5065 false, 5066 true); 5067 5068 scoped_refptr<NoScaleContentLayer> surface_scale_child_no_scale = 5069 CreateNoScaleDrawableContentLayer(&delegate); 5070 SetLayerPropertiesForTesting(surface_scale_child_no_scale.get(), 5071 child_scale_matrix, 5072 gfx::Point3F(), 5073 gfx::PointF(), 5074 gfx::Size(10, 10), 5075 false, 5076 true); 5077 5078 scoped_refptr<NoScaleContentLayer> surface_no_scale = 5079 CreateNoScaleDrawableContentLayer(&delegate); 5080 SetLayerPropertiesForTesting(surface_no_scale.get(), 5081 child_scale_matrix, 5082 gfx::Point3F(), 5083 gfx::PointF(12.f, 12.f), 5084 gfx::Size(10, 10), 5085 false, 5086 true); 5087 5088 scoped_refptr<ContentLayer> surface_no_scale_child_scale = 5089 CreateDrawableContentLayer(&delegate); 5090 SetLayerPropertiesForTesting(surface_no_scale_child_scale.get(), 5091 child_scale_matrix, 5092 gfx::Point3F(), 5093 gfx::PointF(), 5094 gfx::Size(10, 10), 5095 false, 5096 true); 5097 5098 scoped_refptr<NoScaleContentLayer> surface_no_scale_child_no_scale = 5099 CreateNoScaleDrawableContentLayer(&delegate); 5100 SetLayerPropertiesForTesting(surface_no_scale_child_no_scale.get(), 5101 child_scale_matrix, 5102 gfx::Point3F(), 5103 gfx::PointF(), 5104 gfx::Size(10, 10), 5105 false, 5106 true); 5107 5108 root->AddChild(parent); 5109 5110 parent->AddChild(surface_scale); 5111 parent->AddChild(surface_no_scale); 5112 5113 surface_scale->SetForceRenderSurface(true); 5114 surface_scale->AddChild(surface_scale_child_scale); 5115 surface_scale->AddChild(surface_scale_child_no_scale); 5116 5117 surface_no_scale->SetForceRenderSurface(true); 5118 surface_no_scale->AddChild(surface_no_scale_child_scale); 5119 surface_no_scale->AddChild(surface_no_scale_child_no_scale); 5120 5121 scoped_ptr<FakeLayerTreeHost> host = FakeLayerTreeHost::Create(); 5122 host->SetRootLayer(root); 5123 5124 RenderSurfaceLayerList render_surface_layer_list; 5125 5126 SkMScalar device_scale_factor = 5.0; 5127 SkMScalar page_scale_factor = 7.0; 5128 LayerTreeHostCommon::CalcDrawPropsMainInputsForTesting inputs( 5129 root.get(), root->bounds(), &render_surface_layer_list); 5130 inputs.device_scale_factor = device_scale_factor; 5131 inputs.page_scale_factor = page_scale_factor; 5132 inputs.page_scale_application_layer = root.get(); 5133 LayerTreeHostCommon::CalculateDrawProperties(&inputs); 5134 5135 EXPECT_CONTENTS_SCALE_EQ(device_scale_factor * page_scale_factor, 5136 parent); 5137 EXPECT_CONTENTS_SCALE_EQ(device_scale_factor * page_scale_factor, 5138 surface_scale); 5139 EXPECT_CONTENTS_SCALE_EQ(1.f, surface_no_scale); 5140 EXPECT_CONTENTS_SCALE_EQ(device_scale_factor * page_scale_factor, 5141 surface_scale_child_scale); 5142 EXPECT_CONTENTS_SCALE_EQ(1.f, surface_scale_child_no_scale); 5143 EXPECT_CONTENTS_SCALE_EQ(device_scale_factor * page_scale_factor, 5144 surface_no_scale_child_scale); 5145 EXPECT_CONTENTS_SCALE_EQ(1.f, surface_no_scale_child_no_scale); 5146 5147 // The parent is scaled up during draw, since its contents are not scaled by 5148 // the transform hierarchy. 5149 EXPECT_FLOAT_EQ(initial_parent_scale, 5150 parent->draw_transform().matrix().get(0, 0)); 5151 EXPECT_FLOAT_EQ(initial_parent_scale, 5152 parent->draw_transform().matrix().get(1, 1)); 5153 5154 // The child surface is scaled up during draw since its subtree is not scaled 5155 // by the transform hierarchy. 5156 EXPECT_FLOAT_EQ( 5157 initial_parent_scale * initial_child_scale, 5158 surface_scale->render_surface()->draw_transform().matrix().get(0, 0)); 5159 EXPECT_FLOAT_EQ( 5160 initial_parent_scale * initial_child_scale, 5161 surface_scale->render_surface()->draw_transform().matrix().get(1, 1)); 5162 5163 // The surface_scale's RenderSurface is scaled during draw, so the layer does 5164 // not need to be scaled when drawing into its surface. 5165 EXPECT_FLOAT_EQ(1.0, surface_scale->draw_transform().matrix().get(0, 0)); 5166 EXPECT_FLOAT_EQ(1.0, surface_scale->draw_transform().matrix().get(1, 1)); 5167 5168 // The surface_scale_child_scale is scaled when drawing into its surface, 5169 // since its content bounds are not scaled by the transform hierarchy. 5170 EXPECT_FLOAT_EQ( 5171 initial_child_scale, 5172 surface_scale_child_scale->draw_transform().matrix().get(0, 0)); 5173 EXPECT_FLOAT_EQ( 5174 initial_child_scale, 5175 surface_scale_child_scale->draw_transform().matrix().get(1, 1)); 5176 5177 // The surface_scale_child_no_scale has a fixed contents scale of 1, so it 5178 // needs to be scaled by the device and page scale factors, along with the 5179 // transform hierarchy. 5180 EXPECT_FLOAT_EQ( 5181 device_scale_factor * page_scale_factor * initial_child_scale, 5182 surface_scale_child_no_scale->draw_transform().matrix().get(0, 0)); 5183 EXPECT_FLOAT_EQ( 5184 device_scale_factor * page_scale_factor * initial_child_scale, 5185 surface_scale_child_no_scale->draw_transform().matrix().get(1, 1)); 5186 5187 // The child surface is scaled up during draw since its subtree is not scaled 5188 // by the transform hierarchy. 5189 EXPECT_FLOAT_EQ( 5190 initial_parent_scale * initial_child_scale, 5191 surface_no_scale->render_surface()->draw_transform().matrix().get(0, 0)); 5192 EXPECT_FLOAT_EQ( 5193 initial_parent_scale * initial_child_scale, 5194 surface_no_scale->render_surface()->draw_transform().matrix().get(1, 1)); 5195 5196 // The surface_no_scale layer has a fixed contents scale of 1, so it needs to 5197 // be scaled by the device and page scale factors. Its surface is already 5198 // scaled by the transform hierarchy so those don't need to scale the layer's 5199 // drawing. 5200 EXPECT_FLOAT_EQ(device_scale_factor * page_scale_factor, 5201 surface_no_scale->draw_transform().matrix().get(0, 0)); 5202 EXPECT_FLOAT_EQ(device_scale_factor * page_scale_factor, 5203 surface_no_scale->draw_transform().matrix().get(1, 1)); 5204 5205 // The surface_no_scale_child_scale has its contents scaled by the page and 5206 // device scale factors, but needs to be scaled by the transform hierarchy 5207 // when drawing. 5208 EXPECT_FLOAT_EQ( 5209 initial_child_scale, 5210 surface_no_scale_child_scale->draw_transform().matrix().get(0, 0)); 5211 EXPECT_FLOAT_EQ( 5212 initial_child_scale, 5213 surface_no_scale_child_scale->draw_transform().matrix().get(1, 1)); 5214 5215 // The surface_no_scale_child_no_scale has a fixed contents scale of 1, so it 5216 // needs to be scaled by the device and page scale factors. It also needs to 5217 // be scaled by any transform heirarchy below its target surface. 5218 EXPECT_FLOAT_EQ( 5219 device_scale_factor * page_scale_factor * initial_child_scale, 5220 surface_no_scale_child_no_scale->draw_transform().matrix().get(0, 0)); 5221 EXPECT_FLOAT_EQ( 5222 device_scale_factor * page_scale_factor * initial_child_scale, 5223 surface_no_scale_child_no_scale->draw_transform().matrix().get(1, 1)); 5224 } 5225 5226 TEST_F(LayerTreeHostCommonTest, ContentsScaleForAnimatingLayer) { 5227 MockContentLayerClient delegate; 5228 gfx::Transform identity_matrix; 5229 5230 gfx::Transform parent_scale_matrix; 5231 SkMScalar initial_parent_scale = 1.75; 5232 parent_scale_matrix.Scale(initial_parent_scale, initial_parent_scale); 5233 5234 gfx::Transform child_scale_matrix; 5235 SkMScalar initial_child_scale = 1.25; 5236 child_scale_matrix.Scale(initial_child_scale, initial_child_scale); 5237 5238 scoped_refptr<Layer> root = Layer::Create(); 5239 root->SetBounds(gfx::Size(100, 100)); 5240 5241 scoped_refptr<ContentLayer> parent = CreateDrawableContentLayer(&delegate); 5242 SetLayerPropertiesForTesting(parent.get(), 5243 parent_scale_matrix, 5244 gfx::Point3F(), 5245 gfx::PointF(), 5246 gfx::Size(100, 100), 5247 false, 5248 true); 5249 5250 scoped_refptr<ContentLayer> child_scale = 5251 CreateDrawableContentLayer(&delegate); 5252 SetLayerPropertiesForTesting(child_scale.get(), 5253 child_scale_matrix, 5254 gfx::Point3F(), 5255 gfx::PointF(2.f, 2.f), 5256 gfx::Size(10, 10), 5257 false, 5258 true); 5259 5260 root->AddChild(parent); 5261 5262 parent->AddChild(child_scale); 5263 5264 scoped_ptr<FakeLayerTreeHost> host = FakeLayerTreeHost::Create(); 5265 host->SetRootLayer(root); 5266 5267 // Now put an animating transform on child. 5268 int animation_id = AddAnimatedTransformToController( 5269 child_scale->layer_animation_controller(), 10.0, 30, 0); 5270 5271 { 5272 RenderSurfaceLayerList render_surface_layer_list; 5273 LayerTreeHostCommon::CalcDrawPropsMainInputsForTesting inputs( 5274 root.get(), root->bounds(), &render_surface_layer_list); 5275 inputs.can_adjust_raster_scales = true; 5276 LayerTreeHostCommon::CalculateDrawProperties(&inputs); 5277 5278 EXPECT_CONTENTS_SCALE_EQ(initial_parent_scale, parent); 5279 // The layers with animating transforms should not compute a contents scale 5280 // other than 1 until they finish animating. 5281 EXPECT_CONTENTS_SCALE_EQ(1, child_scale); 5282 } 5283 5284 // Remove the animation, now it can save a raster scale. 5285 child_scale->layer_animation_controller()->RemoveAnimation(animation_id); 5286 5287 { 5288 RenderSurfaceLayerList render_surface_layer_list; 5289 LayerTreeHostCommon::CalcDrawPropsMainInputsForTesting inputs( 5290 root.get(), root->bounds(), &render_surface_layer_list); 5291 inputs.can_adjust_raster_scales = true; 5292 LayerTreeHostCommon::CalculateDrawProperties(&inputs); 5293 5294 EXPECT_CONTENTS_SCALE_EQ(initial_parent_scale, parent); 5295 // The layers with animating transforms should not compute a contents scale 5296 // other than 1 until they finish animating. 5297 EXPECT_CONTENTS_SCALE_EQ(initial_parent_scale * initial_child_scale, 5298 child_scale); 5299 } 5300 } 5301 5302 TEST_F(LayerTreeHostCommonTest, 5303 ChangeInContentBoundsOrScaleTriggersPushProperties) { 5304 MockContentLayerClient delegate; 5305 scoped_refptr<Layer> root = Layer::Create(); 5306 scoped_refptr<Layer> child = CreateDrawableContentLayer(&delegate); 5307 root->AddChild(child); 5308 5309 scoped_ptr<FakeLayerTreeHost> host = FakeLayerTreeHost::Create(); 5310 host->SetRootLayer(root); 5311 5312 gfx::Transform identity_matrix; 5313 SetLayerPropertiesForTesting(root.get(), 5314 identity_matrix, 5315 gfx::Point3F(), 5316 gfx::PointF(), 5317 gfx::Size(100, 100), 5318 true, 5319 false); 5320 SetLayerPropertiesForTesting(child.get(), 5321 identity_matrix, 5322 gfx::Point3F(), 5323 gfx::PointF(), 5324 gfx::Size(100, 100), 5325 true, 5326 false); 5327 5328 root->reset_needs_push_properties_for_testing(); 5329 child->reset_needs_push_properties_for_testing(); 5330 5331 // This will change both layers' content bounds. 5332 ExecuteCalculateDrawProperties(root.get()); 5333 EXPECT_TRUE(root->needs_push_properties()); 5334 EXPECT_TRUE(child->needs_push_properties()); 5335 5336 root->reset_needs_push_properties_for_testing(); 5337 child->reset_needs_push_properties_for_testing(); 5338 5339 // This will change only the child layer's contents scale and content bounds, 5340 // since the root layer is not a ContentsScalingLayer. 5341 ExecuteCalculateDrawProperties(root.get(), 2.f); 5342 EXPECT_FALSE(root->needs_push_properties()); 5343 EXPECT_TRUE(child->needs_push_properties()); 5344 5345 root->reset_needs_push_properties_for_testing(); 5346 child->reset_needs_push_properties_for_testing(); 5347 5348 // This will not change either layer's contents scale or content bounds. 5349 ExecuteCalculateDrawProperties(root.get(), 2.f); 5350 EXPECT_FALSE(root->needs_push_properties()); 5351 EXPECT_FALSE(child->needs_push_properties()); 5352 } 5353 5354 TEST_F(LayerTreeHostCommonTest, RenderSurfaceTransformsInHighDPI) { 5355 MockContentLayerClient delegate; 5356 gfx::Transform identity_matrix; 5357 5358 scoped_refptr<ContentLayer> parent = CreateDrawableContentLayer(&delegate); 5359 SetLayerPropertiesForTesting(parent.get(), 5360 identity_matrix, 5361 gfx::Point3F(), 5362 gfx::PointF(), 5363 gfx::Size(30, 30), 5364 false, 5365 true); 5366 5367 scoped_refptr<ContentLayer> child = CreateDrawableContentLayer(&delegate); 5368 SetLayerPropertiesForTesting(child.get(), 5369 identity_matrix, 5370 gfx::Point3F(), 5371 gfx::PointF(2.f, 2.f), 5372 gfx::Size(10, 10), 5373 false, 5374 true); 5375 5376 gfx::Transform replica_transform; 5377 replica_transform.Scale(1.0, -1.0); 5378 scoped_refptr<ContentLayer> replica = CreateDrawableContentLayer(&delegate); 5379 SetLayerPropertiesForTesting(replica.get(), 5380 replica_transform, 5381 gfx::Point3F(), 5382 gfx::PointF(2.f, 2.f), 5383 gfx::Size(10, 10), 5384 false, 5385 true); 5386 5387 // This layer should end up in the same surface as child, with the same draw 5388 // and screen space transforms. 5389 scoped_refptr<ContentLayer> duplicate_child_non_owner = 5390 CreateDrawableContentLayer(&delegate); 5391 SetLayerPropertiesForTesting(duplicate_child_non_owner.get(), 5392 identity_matrix, 5393 gfx::Point3F(), 5394 gfx::PointF(), 5395 gfx::Size(10, 10), 5396 false, 5397 true); 5398 5399 parent->AddChild(child); 5400 child->AddChild(duplicate_child_non_owner); 5401 child->SetReplicaLayer(replica.get()); 5402 5403 scoped_ptr<FakeLayerTreeHost> host = FakeLayerTreeHost::Create(); 5404 host->SetRootLayer(parent); 5405 5406 RenderSurfaceLayerList render_surface_layer_list; 5407 5408 float device_scale_factor = 1.5f; 5409 LayerTreeHostCommon::CalcDrawPropsMainInputsForTesting inputs( 5410 parent.get(), parent->bounds(), &render_surface_layer_list); 5411 inputs.device_scale_factor = device_scale_factor; 5412 inputs.can_adjust_raster_scales = true; 5413 LayerTreeHostCommon::CalculateDrawProperties(&inputs); 5414 5415 // We should have two render surfaces. The root's render surface and child's 5416 // render surface (it needs one because it has a replica layer). 5417 EXPECT_EQ(2u, render_surface_layer_list.size()); 5418 5419 gfx::Transform expected_parent_transform; 5420 EXPECT_TRANSFORMATION_MATRIX_EQ(expected_parent_transform, 5421 parent->screen_space_transform()); 5422 EXPECT_TRANSFORMATION_MATRIX_EQ(expected_parent_transform, 5423 parent->draw_transform()); 5424 5425 gfx::Transform expected_draw_transform; 5426 EXPECT_TRANSFORMATION_MATRIX_EQ(expected_draw_transform, 5427 child->draw_transform()); 5428 5429 gfx::Transform expected_screen_space_transform; 5430 expected_screen_space_transform.Translate( 5431 device_scale_factor * child->position().x(), 5432 device_scale_factor * child->position().y()); 5433 EXPECT_TRANSFORMATION_MATRIX_EQ(expected_screen_space_transform, 5434 child->screen_space_transform()); 5435 5436 gfx::Transform expected_duplicate_child_draw_transform = 5437 child->draw_transform(); 5438 EXPECT_TRANSFORMATION_MATRIX_EQ(child->draw_transform(), 5439 duplicate_child_non_owner->draw_transform()); 5440 EXPECT_TRANSFORMATION_MATRIX_EQ( 5441 child->screen_space_transform(), 5442 duplicate_child_non_owner->screen_space_transform()); 5443 EXPECT_RECT_EQ(child->drawable_content_rect(), 5444 duplicate_child_non_owner->drawable_content_rect()); 5445 EXPECT_EQ(child->content_bounds(), 5446 duplicate_child_non_owner->content_bounds()); 5447 5448 gfx::Transform expected_render_surface_draw_transform; 5449 expected_render_surface_draw_transform.Translate( 5450 device_scale_factor * child->position().x(), 5451 device_scale_factor * child->position().y()); 5452 EXPECT_TRANSFORMATION_MATRIX_EQ(expected_render_surface_draw_transform, 5453 child->render_surface()->draw_transform()); 5454 5455 gfx::Transform expected_surface_draw_transform; 5456 expected_surface_draw_transform.Translate(device_scale_factor * 2.f, 5457 device_scale_factor * 2.f); 5458 EXPECT_TRANSFORMATION_MATRIX_EQ(expected_surface_draw_transform, 5459 child->render_surface()->draw_transform()); 5460 5461 gfx::Transform expected_surface_screen_space_transform; 5462 expected_surface_screen_space_transform.Translate(device_scale_factor * 2.f, 5463 device_scale_factor * 2.f); 5464 EXPECT_TRANSFORMATION_MATRIX_EQ( 5465 expected_surface_screen_space_transform, 5466 child->render_surface()->screen_space_transform()); 5467 5468 gfx::Transform expected_replica_draw_transform; 5469 expected_replica_draw_transform.matrix().set(1, 1, -1.0); 5470 expected_replica_draw_transform.matrix().set(0, 3, 6.0); 5471 expected_replica_draw_transform.matrix().set(1, 3, 6.0); 5472 EXPECT_TRANSFORMATION_MATRIX_EQ( 5473 expected_replica_draw_transform, 5474 child->render_surface()->replica_draw_transform()); 5475 5476 gfx::Transform expected_replica_screen_space_transform; 5477 expected_replica_screen_space_transform.matrix().set(1, 1, -1.0); 5478 expected_replica_screen_space_transform.matrix().set(0, 3, 6.0); 5479 expected_replica_screen_space_transform.matrix().set(1, 3, 6.0); 5480 EXPECT_TRANSFORMATION_MATRIX_EQ( 5481 expected_replica_screen_space_transform, 5482 child->render_surface()->replica_screen_space_transform()); 5483 EXPECT_TRANSFORMATION_MATRIX_EQ( 5484 expected_replica_screen_space_transform, 5485 child->render_surface()->replica_screen_space_transform()); 5486 } 5487 5488 TEST_F(LayerTreeHostCommonTest, 5489 RenderSurfaceTransformsInHighDPIAccurateScaleZeroPosition) { 5490 MockContentLayerClient delegate; 5491 gfx::Transform identity_matrix; 5492 5493 scoped_refptr<ContentLayer> parent = CreateDrawableContentLayer(&delegate); 5494 SetLayerPropertiesForTesting(parent.get(), 5495 identity_matrix, 5496 gfx::Point3F(), 5497 gfx::PointF(), 5498 gfx::Size(33, 31), 5499 false, 5500 true); 5501 5502 scoped_refptr<ContentLayer> child = CreateDrawableContentLayer(&delegate); 5503 SetLayerPropertiesForTesting(child.get(), 5504 identity_matrix, 5505 gfx::Point3F(), 5506 gfx::PointF(), 5507 gfx::Size(13, 11), 5508 false, 5509 true); 5510 5511 gfx::Transform replica_transform; 5512 replica_transform.Scale(1.0, -1.0); 5513 scoped_refptr<ContentLayer> replica = CreateDrawableContentLayer(&delegate); 5514 SetLayerPropertiesForTesting(replica.get(), 5515 replica_transform, 5516 gfx::Point3F(), 5517 gfx::PointF(), 5518 gfx::Size(13, 11), 5519 false, 5520 true); 5521 5522 // This layer should end up in the same surface as child, with the same draw 5523 // and screen space transforms. 5524 scoped_refptr<ContentLayer> duplicate_child_non_owner = 5525 CreateDrawableContentLayer(&delegate); 5526 SetLayerPropertiesForTesting(duplicate_child_non_owner.get(), 5527 identity_matrix, 5528 gfx::Point3F(), 5529 gfx::PointF(), 5530 gfx::Size(13, 11), 5531 false, 5532 true); 5533 5534 parent->AddChild(child); 5535 child->AddChild(duplicate_child_non_owner); 5536 child->SetReplicaLayer(replica.get()); 5537 5538 scoped_ptr<FakeLayerTreeHost> host = FakeLayerTreeHost::Create(); 5539 host->SetRootLayer(parent); 5540 5541 float device_scale_factor = 1.7f; 5542 5543 RenderSurfaceLayerList render_surface_layer_list; 5544 LayerTreeHostCommon::CalcDrawPropsMainInputsForTesting inputs( 5545 parent.get(), parent->bounds(), &render_surface_layer_list); 5546 inputs.device_scale_factor = device_scale_factor; 5547 inputs.can_adjust_raster_scales = true; 5548 LayerTreeHostCommon::CalculateDrawProperties(&inputs); 5549 5550 // We should have two render surfaces. The root's render surface and child's 5551 // render surface (it needs one because it has a replica layer). 5552 EXPECT_EQ(2u, render_surface_layer_list.size()); 5553 5554 gfx::Transform identity_transform; 5555 5556 EXPECT_TRANSFORMATION_MATRIX_EQ(identity_transform, 5557 parent->screen_space_transform()); 5558 EXPECT_TRANSFORMATION_MATRIX_EQ(identity_transform, parent->draw_transform()); 5559 EXPECT_TRANSFORMATION_MATRIX_EQ(identity_transform, child->draw_transform()); 5560 EXPECT_TRANSFORMATION_MATRIX_EQ(identity_transform, 5561 child->screen_space_transform()); 5562 EXPECT_TRANSFORMATION_MATRIX_EQ(identity_transform, 5563 duplicate_child_non_owner->draw_transform()); 5564 EXPECT_TRANSFORMATION_MATRIX_EQ( 5565 identity_transform, duplicate_child_non_owner->screen_space_transform()); 5566 EXPECT_RECT_EQ(child->drawable_content_rect(), 5567 duplicate_child_non_owner->drawable_content_rect()); 5568 EXPECT_EQ(child->content_bounds(), 5569 duplicate_child_non_owner->content_bounds()); 5570 5571 EXPECT_TRANSFORMATION_MATRIX_EQ(identity_transform, 5572 child->render_surface()->draw_transform()); 5573 EXPECT_TRANSFORMATION_MATRIX_EQ(identity_transform, 5574 child->render_surface()->draw_transform()); 5575 EXPECT_TRANSFORMATION_MATRIX_EQ( 5576 identity_transform, child->render_surface()->screen_space_transform()); 5577 5578 gfx::Transform expected_replica_draw_transform; 5579 expected_replica_draw_transform.matrix().set(1, 1, -1.0); 5580 EXPECT_TRANSFORMATION_MATRIX_EQ( 5581 expected_replica_draw_transform, 5582 child->render_surface()->replica_draw_transform()); 5583 5584 gfx::Transform expected_replica_screen_space_transform; 5585 expected_replica_screen_space_transform.matrix().set(1, 1, -1.0); 5586 EXPECT_TRANSFORMATION_MATRIX_EQ( 5587 expected_replica_screen_space_transform, 5588 child->render_surface()->replica_screen_space_transform()); 5589 } 5590 5591 TEST_F(LayerTreeHostCommonTest, SubtreeSearch) { 5592 scoped_refptr<Layer> root = Layer::Create(); 5593 scoped_refptr<Layer> child = Layer::Create(); 5594 scoped_refptr<Layer> grand_child = Layer::Create(); 5595 scoped_refptr<Layer> mask_layer = Layer::Create(); 5596 scoped_refptr<Layer> replica_layer = Layer::Create(); 5597 5598 grand_child->SetReplicaLayer(replica_layer.get()); 5599 child->AddChild(grand_child.get()); 5600 child->SetMaskLayer(mask_layer.get()); 5601 root->AddChild(child.get()); 5602 5603 scoped_ptr<FakeLayerTreeHost> host = FakeLayerTreeHost::Create(); 5604 host->SetRootLayer(root); 5605 5606 int nonexistent_id = -1; 5607 EXPECT_EQ(root, 5608 LayerTreeHostCommon::FindLayerInSubtree(root.get(), root->id())); 5609 EXPECT_EQ(child, 5610 LayerTreeHostCommon::FindLayerInSubtree(root.get(), child->id())); 5611 EXPECT_EQ( 5612 grand_child, 5613 LayerTreeHostCommon::FindLayerInSubtree(root.get(), grand_child->id())); 5614 EXPECT_EQ( 5615 mask_layer, 5616 LayerTreeHostCommon::FindLayerInSubtree(root.get(), mask_layer->id())); 5617 EXPECT_EQ( 5618 replica_layer, 5619 LayerTreeHostCommon::FindLayerInSubtree(root.get(), replica_layer->id())); 5620 EXPECT_EQ( 5621 0, LayerTreeHostCommon::FindLayerInSubtree(root.get(), nonexistent_id)); 5622 } 5623 5624 TEST_F(LayerTreeHostCommonTest, TransparentChildRenderSurfaceCreation) { 5625 scoped_refptr<Layer> root = Layer::Create(); 5626 scoped_refptr<Layer> child = Layer::Create(); 5627 scoped_refptr<LayerWithForcedDrawsContent> grand_child = 5628 make_scoped_refptr(new LayerWithForcedDrawsContent()); 5629 5630 const gfx::Transform identity_matrix; 5631 SetLayerPropertiesForTesting(root.get(), 5632 identity_matrix, 5633 gfx::Point3F(), 5634 gfx::PointF(), 5635 gfx::Size(100, 100), 5636 true, 5637 false); 5638 SetLayerPropertiesForTesting(child.get(), 5639 identity_matrix, 5640 gfx::Point3F(), 5641 gfx::PointF(), 5642 gfx::Size(10, 10), 5643 true, 5644 false); 5645 SetLayerPropertiesForTesting(grand_child.get(), 5646 identity_matrix, 5647 gfx::Point3F(), 5648 gfx::PointF(), 5649 gfx::Size(10, 10), 5650 true, 5651 false); 5652 5653 root->AddChild(child); 5654 child->AddChild(grand_child); 5655 child->SetOpacity(0.5f); 5656 5657 scoped_ptr<FakeLayerTreeHost> host = FakeLayerTreeHost::Create(); 5658 host->SetRootLayer(root); 5659 5660 ExecuteCalculateDrawProperties(root.get()); 5661 5662 EXPECT_FALSE(child->render_surface()); 5663 } 5664 5665 TEST_F(LayerTreeHostCommonTest, OpacityAnimatingOnPendingTree) { 5666 FakeImplProxy proxy; 5667 TestSharedBitmapManager shared_bitmap_manager; 5668 FakeLayerTreeHostImpl host_impl(&proxy, &shared_bitmap_manager); 5669 host_impl.CreatePendingTree(); 5670 scoped_ptr<LayerImpl> root = LayerImpl::Create(host_impl.pending_tree(), 1); 5671 5672 const gfx::Transform identity_matrix; 5673 SetLayerPropertiesForTesting(root.get(), 5674 identity_matrix, 5675 gfx::Point3F(), 5676 gfx::PointF(), 5677 gfx::Size(100, 100), 5678 true, 5679 false); 5680 root->SetDrawsContent(true); 5681 5682 scoped_ptr<LayerImpl> child = LayerImpl::Create(host_impl.pending_tree(), 2); 5683 SetLayerPropertiesForTesting(child.get(), 5684 identity_matrix, 5685 gfx::Point3F(), 5686 gfx::PointF(), 5687 gfx::Size(50, 50), 5688 true, 5689 false); 5690 child->SetDrawsContent(true); 5691 child->SetOpacity(0.0f); 5692 5693 // Add opacity animation. 5694 AddOpacityTransitionToController( 5695 child->layer_animation_controller(), 10.0, 0.0f, 1.0f, false); 5696 5697 root->AddChild(child.Pass()); 5698 5699 LayerImplList render_surface_layer_list; 5700 LayerTreeHostCommon::CalcDrawPropsImplInputsForTesting inputs( 5701 root.get(), root->bounds(), &render_surface_layer_list); 5702 inputs.can_adjust_raster_scales = true; 5703 LayerTreeHostCommon::CalculateDrawProperties(&inputs); 5704 5705 // We should have one render surface and two layers. The child 5706 // layer should be included even though it is transparent. 5707 ASSERT_EQ(1u, render_surface_layer_list.size()); 5708 ASSERT_EQ(2u, root->render_surface()->layer_list().size()); 5709 } 5710 5711 typedef std::tr1::tuple<bool, bool> LCDTextTestParam; 5712 class LCDTextTest 5713 : public LayerTreeHostCommonTestBase, 5714 public testing::TestWithParam<LCDTextTestParam> { 5715 protected: 5716 virtual void SetUp() { 5717 can_use_lcd_text_ = std::tr1::get<0>(GetParam()); 5718 5719 root_ = Layer::Create(); 5720 child_ = Layer::Create(); 5721 grand_child_ = Layer::Create(); 5722 child_->AddChild(grand_child_.get()); 5723 root_->AddChild(child_.get()); 5724 5725 gfx::Transform identity_matrix; 5726 SetLayerPropertiesForTesting(root_.get(), 5727 identity_matrix, 5728 gfx::Point3F(), 5729 gfx::PointF(), 5730 gfx::Size(1, 1), 5731 true, 5732 false); 5733 SetLayerPropertiesForTesting(child_.get(), 5734 identity_matrix, 5735 gfx::Point3F(), 5736 gfx::PointF(), 5737 gfx::Size(1, 1), 5738 true, 5739 false); 5740 SetLayerPropertiesForTesting(grand_child_.get(), 5741 identity_matrix, 5742 gfx::Point3F(), 5743 gfx::PointF(), 5744 gfx::Size(1, 1), 5745 true, 5746 false); 5747 5748 child_->SetForceRenderSurface(std::tr1::get<1>(GetParam())); 5749 5750 host_ = FakeLayerTreeHost::Create(); 5751 host_->SetRootLayer(root_); 5752 } 5753 5754 bool can_use_lcd_text_; 5755 scoped_ptr<FakeLayerTreeHost> host_; 5756 scoped_refptr<Layer> root_; 5757 scoped_refptr<Layer> child_; 5758 scoped_refptr<Layer> grand_child_; 5759 }; 5760 5761 TEST_P(LCDTextTest, CanUseLCDText) { 5762 // Case 1: Identity transform. 5763 gfx::Transform identity_matrix; 5764 ExecuteCalculateDrawProperties( 5765 root_.get(), 1.f, 1.f, NULL, can_use_lcd_text_); 5766 EXPECT_EQ(can_use_lcd_text_, root_->can_use_lcd_text()); 5767 EXPECT_EQ(can_use_lcd_text_, child_->can_use_lcd_text()); 5768 EXPECT_EQ(can_use_lcd_text_, grand_child_->can_use_lcd_text()); 5769 5770 // Case 2: Integral translation. 5771 gfx::Transform integral_translation; 5772 integral_translation.Translate(1.0, 2.0); 5773 child_->SetTransform(integral_translation); 5774 ExecuteCalculateDrawProperties( 5775 root_.get(), 1.f, 1.f, NULL, can_use_lcd_text_); 5776 EXPECT_EQ(can_use_lcd_text_, root_->can_use_lcd_text()); 5777 EXPECT_EQ(can_use_lcd_text_, child_->can_use_lcd_text()); 5778 EXPECT_EQ(can_use_lcd_text_, grand_child_->can_use_lcd_text()); 5779 5780 // Case 3: Non-integral translation. 5781 gfx::Transform non_integral_translation; 5782 non_integral_translation.Translate(1.5, 2.5); 5783 child_->SetTransform(non_integral_translation); 5784 ExecuteCalculateDrawProperties( 5785 root_.get(), 1.f, 1.f, NULL, can_use_lcd_text_); 5786 EXPECT_EQ(can_use_lcd_text_, root_->can_use_lcd_text()); 5787 EXPECT_FALSE(child_->can_use_lcd_text()); 5788 EXPECT_FALSE(grand_child_->can_use_lcd_text()); 5789 5790 // Case 4: Rotation. 5791 gfx::Transform rotation; 5792 rotation.Rotate(10.0); 5793 child_->SetTransform(rotation); 5794 ExecuteCalculateDrawProperties( 5795 root_.get(), 1.f, 1.f, NULL, can_use_lcd_text_); 5796 EXPECT_EQ(can_use_lcd_text_, root_->can_use_lcd_text()); 5797 EXPECT_FALSE(child_->can_use_lcd_text()); 5798 EXPECT_FALSE(grand_child_->can_use_lcd_text()); 5799 5800 // Case 5: Scale. 5801 gfx::Transform scale; 5802 scale.Scale(2.0, 2.0); 5803 child_->SetTransform(scale); 5804 ExecuteCalculateDrawProperties( 5805 root_.get(), 1.f, 1.f, NULL, can_use_lcd_text_); 5806 EXPECT_EQ(can_use_lcd_text_, root_->can_use_lcd_text()); 5807 EXPECT_FALSE(child_->can_use_lcd_text()); 5808 EXPECT_FALSE(grand_child_->can_use_lcd_text()); 5809 5810 // Case 6: Skew. 5811 gfx::Transform skew; 5812 skew.SkewX(10.0); 5813 child_->SetTransform(skew); 5814 ExecuteCalculateDrawProperties( 5815 root_.get(), 1.f, 1.f, NULL, can_use_lcd_text_); 5816 EXPECT_EQ(can_use_lcd_text_, root_->can_use_lcd_text()); 5817 EXPECT_FALSE(child_->can_use_lcd_text()); 5818 EXPECT_FALSE(grand_child_->can_use_lcd_text()); 5819 5820 // Case 7: Translucent. 5821 child_->SetTransform(identity_matrix); 5822 child_->SetOpacity(0.5f); 5823 ExecuteCalculateDrawProperties( 5824 root_.get(), 1.f, 1.f, NULL, can_use_lcd_text_); 5825 EXPECT_EQ(can_use_lcd_text_, root_->can_use_lcd_text()); 5826 EXPECT_FALSE(child_->can_use_lcd_text()); 5827 EXPECT_FALSE(grand_child_->can_use_lcd_text()); 5828 5829 // Case 8: Sanity check: restore transform and opacity. 5830 child_->SetTransform(identity_matrix); 5831 child_->SetOpacity(1.f); 5832 ExecuteCalculateDrawProperties( 5833 root_.get(), 1.f, 1.f, NULL, can_use_lcd_text_); 5834 EXPECT_EQ(can_use_lcd_text_, root_->can_use_lcd_text()); 5835 EXPECT_EQ(can_use_lcd_text_, child_->can_use_lcd_text()); 5836 EXPECT_EQ(can_use_lcd_text_, grand_child_->can_use_lcd_text()); 5837 } 5838 5839 TEST_P(LCDTextTest, CanUseLCDTextWithAnimation) { 5840 // Sanity check: Make sure can_use_lcd_text_ is set on each node. 5841 ExecuteCalculateDrawProperties( 5842 root_.get(), 1.f, 1.f, NULL, can_use_lcd_text_); 5843 EXPECT_EQ(can_use_lcd_text_, root_->can_use_lcd_text()); 5844 EXPECT_EQ(can_use_lcd_text_, child_->can_use_lcd_text()); 5845 EXPECT_EQ(can_use_lcd_text_, grand_child_->can_use_lcd_text()); 5846 5847 // Add opacity animation. 5848 child_->SetOpacity(0.9f); 5849 AddOpacityTransitionToController( 5850 child_->layer_animation_controller(), 10.0, 0.9f, 0.1f, false); 5851 5852 ExecuteCalculateDrawProperties( 5853 root_.get(), 1.f, 1.f, NULL, can_use_lcd_text_); 5854 // Text AA should not be adjusted while animation is active. 5855 // Make sure LCD text AA setting remains unchanged. 5856 EXPECT_EQ(can_use_lcd_text_, root_->can_use_lcd_text()); 5857 EXPECT_EQ(can_use_lcd_text_, child_->can_use_lcd_text()); 5858 EXPECT_EQ(can_use_lcd_text_, grand_child_->can_use_lcd_text()); 5859 } 5860 5861 INSTANTIATE_TEST_CASE_P(LayerTreeHostCommonTest, 5862 LCDTextTest, 5863 testing::Combine(testing::Bool(), testing::Bool())); 5864 5865 TEST_F(LayerTreeHostCommonTest, SubtreeHidden_SingleLayer) { 5866 FakeImplProxy proxy; 5867 TestSharedBitmapManager shared_bitmap_manager; 5868 FakeLayerTreeHostImpl host_impl(&proxy, &shared_bitmap_manager); 5869 host_impl.CreatePendingTree(); 5870 const gfx::Transform identity_matrix; 5871 5872 scoped_refptr<Layer> root = Layer::Create(); 5873 SetLayerPropertiesForTesting(root.get(), 5874 identity_matrix, 5875 gfx::Point3F(), 5876 gfx::PointF(), 5877 gfx::Size(50, 50), 5878 true, 5879 false); 5880 root->SetIsDrawable(true); 5881 5882 scoped_refptr<Layer> child = Layer::Create(); 5883 SetLayerPropertiesForTesting(child.get(), 5884 identity_matrix, 5885 gfx::Point3F(), 5886 gfx::PointF(), 5887 gfx::Size(40, 40), 5888 true, 5889 false); 5890 child->SetIsDrawable(true); 5891 5892 scoped_refptr<Layer> grand_child = Layer::Create(); 5893 SetLayerPropertiesForTesting(grand_child.get(), 5894 identity_matrix, 5895 gfx::Point3F(), 5896 gfx::PointF(), 5897 gfx::Size(30, 30), 5898 true, 5899 false); 5900 grand_child->SetIsDrawable(true); 5901 grand_child->SetHideLayerAndSubtree(true); 5902 5903 child->AddChild(grand_child); 5904 root->AddChild(child); 5905 5906 scoped_ptr<FakeLayerTreeHost> host = FakeLayerTreeHost::Create(); 5907 host->SetRootLayer(root); 5908 5909 RenderSurfaceLayerList render_surface_layer_list; 5910 LayerTreeHostCommon::CalcDrawPropsMainInputsForTesting inputs( 5911 root.get(), root->bounds(), &render_surface_layer_list); 5912 inputs.can_adjust_raster_scales = true; 5913 LayerTreeHostCommon::CalculateDrawProperties(&inputs); 5914 5915 // We should have one render surface and two layers. The grand child has 5916 // hidden itself. 5917 ASSERT_EQ(1u, render_surface_layer_list.size()); 5918 ASSERT_EQ(2u, root->render_surface()->layer_list().size()); 5919 EXPECT_EQ(root->id(), root->render_surface()->layer_list().at(0)->id()); 5920 EXPECT_EQ(child->id(), root->render_surface()->layer_list().at(1)->id()); 5921 } 5922 5923 TEST_F(LayerTreeHostCommonTest, SubtreeHidden_SingleLayerImpl) { 5924 FakeImplProxy proxy; 5925 TestSharedBitmapManager shared_bitmap_manager; 5926 FakeLayerTreeHostImpl host_impl(&proxy, &shared_bitmap_manager); 5927 host_impl.CreatePendingTree(); 5928 const gfx::Transform identity_matrix; 5929 5930 scoped_ptr<LayerImpl> root = LayerImpl::Create(host_impl.pending_tree(), 1); 5931 SetLayerPropertiesForTesting(root.get(), 5932 identity_matrix, 5933 gfx::Point3F(), 5934 gfx::PointF(), 5935 gfx::Size(50, 50), 5936 true, 5937 false); 5938 root->SetDrawsContent(true); 5939 5940 scoped_ptr<LayerImpl> child = LayerImpl::Create(host_impl.pending_tree(), 2); 5941 SetLayerPropertiesForTesting(child.get(), 5942 identity_matrix, 5943 gfx::Point3F(), 5944 gfx::PointF(), 5945 gfx::Size(40, 40), 5946 true, 5947 false); 5948 child->SetDrawsContent(true); 5949 5950 scoped_ptr<LayerImpl> grand_child = 5951 LayerImpl::Create(host_impl.pending_tree(), 3); 5952 SetLayerPropertiesForTesting(grand_child.get(), 5953 identity_matrix, 5954 gfx::Point3F(), 5955 gfx::PointF(), 5956 gfx::Size(30, 30), 5957 true, 5958 false); 5959 grand_child->SetDrawsContent(true); 5960 grand_child->SetHideLayerAndSubtree(true); 5961 5962 child->AddChild(grand_child.Pass()); 5963 root->AddChild(child.Pass()); 5964 5965 LayerImplList render_surface_layer_list; 5966 LayerTreeHostCommon::CalcDrawPropsImplInputsForTesting inputs( 5967 root.get(), root->bounds(), &render_surface_layer_list); 5968 inputs.can_adjust_raster_scales = true; 5969 LayerTreeHostCommon::CalculateDrawProperties(&inputs); 5970 5971 // We should have one render surface and two layers. The grand child has 5972 // hidden itself. 5973 ASSERT_EQ(1u, render_surface_layer_list.size()); 5974 ASSERT_EQ(2u, root->render_surface()->layer_list().size()); 5975 EXPECT_EQ(1, root->render_surface()->layer_list().at(0)->id()); 5976 EXPECT_EQ(2, root->render_surface()->layer_list().at(1)->id()); 5977 } 5978 5979 TEST_F(LayerTreeHostCommonTest, SubtreeHidden_TwoLayers) { 5980 FakeImplProxy proxy; 5981 TestSharedBitmapManager shared_bitmap_manager; 5982 FakeLayerTreeHostImpl host_impl(&proxy, &shared_bitmap_manager); 5983 host_impl.CreatePendingTree(); 5984 const gfx::Transform identity_matrix; 5985 5986 scoped_refptr<Layer> root = Layer::Create(); 5987 SetLayerPropertiesForTesting(root.get(), 5988 identity_matrix, 5989 gfx::Point3F(), 5990 gfx::PointF(), 5991 gfx::Size(50, 50), 5992 true, 5993 false); 5994 root->SetIsDrawable(true); 5995 5996 scoped_refptr<Layer> child = Layer::Create(); 5997 SetLayerPropertiesForTesting(child.get(), 5998 identity_matrix, 5999 gfx::Point3F(), 6000 gfx::PointF(), 6001 gfx::Size(40, 40), 6002 true, 6003 false); 6004 child->SetIsDrawable(true); 6005 child->SetHideLayerAndSubtree(true); 6006 6007 scoped_refptr<Layer> grand_child = Layer::Create(); 6008 SetLayerPropertiesForTesting(grand_child.get(), 6009 identity_matrix, 6010 gfx::Point3F(), 6011 gfx::PointF(), 6012 gfx::Size(30, 30), 6013 true, 6014 false); 6015 grand_child->SetIsDrawable(true); 6016 6017 child->AddChild(grand_child); 6018 root->AddChild(child); 6019 6020 scoped_ptr<FakeLayerTreeHost> host = FakeLayerTreeHost::Create(); 6021 host->SetRootLayer(root); 6022 6023 RenderSurfaceLayerList render_surface_layer_list; 6024 LayerTreeHostCommon::CalcDrawPropsMainInputsForTesting inputs( 6025 root.get(), root->bounds(), &render_surface_layer_list); 6026 inputs.can_adjust_raster_scales = true; 6027 LayerTreeHostCommon::CalculateDrawProperties(&inputs); 6028 6029 // We should have one render surface and one layers. The child has 6030 // hidden itself and the grand child. 6031 ASSERT_EQ(1u, render_surface_layer_list.size()); 6032 ASSERT_EQ(1u, root->render_surface()->layer_list().size()); 6033 EXPECT_EQ(root->id(), root->render_surface()->layer_list().at(0)->id()); 6034 } 6035 6036 TEST_F(LayerTreeHostCommonTest, SubtreeHidden_TwoLayersImpl) { 6037 FakeImplProxy proxy; 6038 TestSharedBitmapManager shared_bitmap_manager; 6039 FakeLayerTreeHostImpl host_impl(&proxy, &shared_bitmap_manager); 6040 host_impl.CreatePendingTree(); 6041 const gfx::Transform identity_matrix; 6042 6043 scoped_ptr<LayerImpl> root = LayerImpl::Create(host_impl.pending_tree(), 1); 6044 SetLayerPropertiesForTesting(root.get(), 6045 identity_matrix, 6046 gfx::Point3F(), 6047 gfx::PointF(), 6048 gfx::Size(50, 50), 6049 true, 6050 false); 6051 root->SetDrawsContent(true); 6052 6053 scoped_ptr<LayerImpl> child = LayerImpl::Create(host_impl.pending_tree(), 2); 6054 SetLayerPropertiesForTesting(child.get(), 6055 identity_matrix, 6056 gfx::Point3F(), 6057 gfx::PointF(), 6058 gfx::Size(40, 40), 6059 true, 6060 false); 6061 child->SetDrawsContent(true); 6062 child->SetHideLayerAndSubtree(true); 6063 6064 scoped_ptr<LayerImpl> grand_child = 6065 LayerImpl::Create(host_impl.pending_tree(), 3); 6066 SetLayerPropertiesForTesting(grand_child.get(), 6067 identity_matrix, 6068 gfx::Point3F(), 6069 gfx::PointF(), 6070 gfx::Size(30, 30), 6071 true, 6072 false); 6073 grand_child->SetDrawsContent(true); 6074 6075 child->AddChild(grand_child.Pass()); 6076 root->AddChild(child.Pass()); 6077 6078 LayerImplList render_surface_layer_list; 6079 LayerTreeHostCommon::CalcDrawPropsImplInputsForTesting inputs( 6080 root.get(), root->bounds(), &render_surface_layer_list); 6081 inputs.can_adjust_raster_scales = true; 6082 LayerTreeHostCommon::CalculateDrawProperties(&inputs); 6083 6084 // We should have one render surface and one layers. The child has 6085 // hidden itself and the grand child. 6086 ASSERT_EQ(1u, render_surface_layer_list.size()); 6087 ASSERT_EQ(1u, root->render_surface()->layer_list().size()); 6088 EXPECT_EQ(1, root->render_surface()->layer_list().at(0)->id()); 6089 } 6090 6091 void EmptyCopyOutputCallback(scoped_ptr<CopyOutputResult> result) {} 6092 6093 TEST_F(LayerTreeHostCommonTest, SubtreeHiddenWithCopyRequest) { 6094 FakeImplProxy proxy; 6095 TestSharedBitmapManager shared_bitmap_manager; 6096 FakeLayerTreeHostImpl host_impl(&proxy, &shared_bitmap_manager); 6097 host_impl.CreatePendingTree(); 6098 const gfx::Transform identity_matrix; 6099 6100 scoped_refptr<Layer> root = Layer::Create(); 6101 SetLayerPropertiesForTesting(root.get(), 6102 identity_matrix, 6103 gfx::Point3F(), 6104 gfx::PointF(), 6105 gfx::Size(50, 50), 6106 true, 6107 false); 6108 root->SetIsDrawable(true); 6109 6110 scoped_refptr<Layer> copy_grand_parent = Layer::Create(); 6111 SetLayerPropertiesForTesting(copy_grand_parent.get(), 6112 identity_matrix, 6113 gfx::Point3F(), 6114 gfx::PointF(), 6115 gfx::Size(40, 40), 6116 true, 6117 false); 6118 copy_grand_parent->SetIsDrawable(true); 6119 6120 scoped_refptr<Layer> copy_parent = Layer::Create(); 6121 SetLayerPropertiesForTesting(copy_parent.get(), 6122 identity_matrix, 6123 gfx::Point3F(), 6124 gfx::PointF(), 6125 gfx::Size(30, 30), 6126 true, 6127 false); 6128 copy_parent->SetIsDrawable(true); 6129 copy_parent->SetForceRenderSurface(true); 6130 6131 scoped_refptr<Layer> copy_layer = Layer::Create(); 6132 SetLayerPropertiesForTesting(copy_layer.get(), 6133 identity_matrix, 6134 gfx::Point3F(), 6135 gfx::PointF(), 6136 gfx::Size(20, 20), 6137 true, 6138 false); 6139 copy_layer->SetIsDrawable(true); 6140 6141 scoped_refptr<Layer> copy_child = Layer::Create(); 6142 SetLayerPropertiesForTesting(copy_child.get(), 6143 identity_matrix, 6144 gfx::Point3F(), 6145 gfx::PointF(), 6146 gfx::Size(20, 20), 6147 true, 6148 false); 6149 copy_child->SetIsDrawable(true); 6150 6151 scoped_refptr<Layer> copy_grand_parent_sibling_before = Layer::Create(); 6152 SetLayerPropertiesForTesting(copy_grand_parent_sibling_before.get(), 6153 identity_matrix, 6154 gfx::Point3F(), 6155 gfx::PointF(), 6156 gfx::Size(40, 40), 6157 true, 6158 false); 6159 copy_grand_parent_sibling_before->SetIsDrawable(true); 6160 6161 scoped_refptr<Layer> copy_grand_parent_sibling_after = Layer::Create(); 6162 SetLayerPropertiesForTesting(copy_grand_parent_sibling_after.get(), 6163 identity_matrix, 6164 gfx::Point3F(), 6165 gfx::PointF(), 6166 gfx::Size(40, 40), 6167 true, 6168 false); 6169 copy_grand_parent_sibling_after->SetIsDrawable(true); 6170 6171 copy_layer->AddChild(copy_child); 6172 copy_parent->AddChild(copy_layer); 6173 copy_grand_parent->AddChild(copy_parent); 6174 root->AddChild(copy_grand_parent_sibling_before); 6175 root->AddChild(copy_grand_parent); 6176 root->AddChild(copy_grand_parent_sibling_after); 6177 6178 scoped_ptr<FakeLayerTreeHost> host = FakeLayerTreeHost::Create(); 6179 host->SetRootLayer(root); 6180 6181 // Hide the copy_grand_parent and its subtree. But make a copy request in that 6182 // hidden subtree on copy_layer. 6183 copy_grand_parent->SetHideLayerAndSubtree(true); 6184 copy_grand_parent_sibling_before->SetHideLayerAndSubtree(true); 6185 copy_grand_parent_sibling_after->SetHideLayerAndSubtree(true); 6186 copy_layer->RequestCopyOfOutput(CopyOutputRequest::CreateRequest( 6187 base::Bind(&EmptyCopyOutputCallback))); 6188 EXPECT_TRUE(copy_layer->HasCopyRequest()); 6189 6190 RenderSurfaceLayerList render_surface_layer_list; 6191 LayerTreeHostCommon::CalcDrawPropsMainInputsForTesting inputs( 6192 root.get(), root->bounds(), &render_surface_layer_list); 6193 inputs.can_adjust_raster_scales = true; 6194 LayerTreeHostCommon::CalculateDrawProperties(&inputs); 6195 6196 EXPECT_TRUE(root->draw_properties().layer_or_descendant_has_copy_request); 6197 EXPECT_TRUE(copy_grand_parent->draw_properties(). 6198 layer_or_descendant_has_copy_request); 6199 EXPECT_TRUE(copy_parent->draw_properties(). 6200 layer_or_descendant_has_copy_request); 6201 EXPECT_TRUE(copy_layer->draw_properties(). 6202 layer_or_descendant_has_copy_request); 6203 EXPECT_FALSE(copy_child->draw_properties(). 6204 layer_or_descendant_has_copy_request); 6205 EXPECT_FALSE(copy_grand_parent_sibling_before->draw_properties(). 6206 layer_or_descendant_has_copy_request); 6207 EXPECT_FALSE(copy_grand_parent_sibling_after->draw_properties(). 6208 layer_or_descendant_has_copy_request); 6209 6210 // We should have three render surfaces, one for the root, one for the parent 6211 // since it owns a surface, and one for the copy_layer. 6212 ASSERT_EQ(3u, render_surface_layer_list.size()); 6213 EXPECT_EQ(root->id(), render_surface_layer_list.at(0)->id()); 6214 EXPECT_EQ(copy_parent->id(), render_surface_layer_list.at(1)->id()); 6215 EXPECT_EQ(copy_layer->id(), render_surface_layer_list.at(2)->id()); 6216 6217 // The root render surface should have 2 contributing layers. The 6218 // copy_grand_parent is hidden along with its siblings, but the copy_parent 6219 // will appear since something in its subtree needs to be drawn for a copy 6220 // request. 6221 ASSERT_EQ(2u, root->render_surface()->layer_list().size()); 6222 EXPECT_EQ(root->id(), root->render_surface()->layer_list().at(0)->id()); 6223 EXPECT_EQ(copy_parent->id(), 6224 root->render_surface()->layer_list().at(1)->id()); 6225 6226 // Nothing actually draws into the copy parent, so only the copy_layer will 6227 // appear in its list, since it needs to be drawn for the copy request. 6228 ASSERT_EQ(1u, copy_parent->render_surface()->layer_list().size()); 6229 EXPECT_EQ(copy_layer->id(), 6230 copy_parent->render_surface()->layer_list().at(0)->id()); 6231 6232 // The copy_layer's render surface should have two contributing layers. 6233 ASSERT_EQ(2u, copy_layer->render_surface()->layer_list().size()); 6234 EXPECT_EQ(copy_layer->id(), 6235 copy_layer->render_surface()->layer_list().at(0)->id()); 6236 EXPECT_EQ(copy_child->id(), 6237 copy_layer->render_surface()->layer_list().at(1)->id()); 6238 } 6239 6240 TEST_F(LayerTreeHostCommonTest, ClippedOutCopyRequest) { 6241 FakeImplProxy proxy; 6242 TestSharedBitmapManager shared_bitmap_manager; 6243 FakeLayerTreeHostImpl host_impl(&proxy, &shared_bitmap_manager); 6244 host_impl.CreatePendingTree(); 6245 const gfx::Transform identity_matrix; 6246 6247 scoped_refptr<Layer> root = Layer::Create(); 6248 SetLayerPropertiesForTesting(root.get(), 6249 identity_matrix, 6250 gfx::Point3F(), 6251 gfx::PointF(), 6252 gfx::Size(50, 50), 6253 true, 6254 false); 6255 root->SetIsDrawable(true); 6256 6257 scoped_refptr<Layer> copy_parent = Layer::Create(); 6258 SetLayerPropertiesForTesting(copy_parent.get(), 6259 identity_matrix, 6260 gfx::Point3F(), 6261 gfx::PointF(), 6262 gfx::Size(), 6263 true, 6264 false); 6265 copy_parent->SetIsDrawable(true); 6266 copy_parent->SetMasksToBounds(true); 6267 6268 scoped_refptr<Layer> copy_layer = Layer::Create(); 6269 SetLayerPropertiesForTesting(copy_layer.get(), 6270 identity_matrix, 6271 gfx::Point3F(), 6272 gfx::PointF(), 6273 gfx::Size(30, 30), 6274 true, 6275 false); 6276 copy_layer->SetIsDrawable(true); 6277 6278 scoped_refptr<Layer> copy_child = Layer::Create(); 6279 SetLayerPropertiesForTesting(copy_child.get(), 6280 identity_matrix, 6281 gfx::Point3F(), 6282 gfx::PointF(), 6283 gfx::Size(20, 20), 6284 true, 6285 false); 6286 copy_child->SetIsDrawable(true); 6287 6288 copy_layer->AddChild(copy_child); 6289 copy_parent->AddChild(copy_layer); 6290 root->AddChild(copy_parent); 6291 6292 scoped_ptr<FakeLayerTreeHost> host = FakeLayerTreeHost::Create(); 6293 host->SetRootLayer(root); 6294 6295 copy_layer->RequestCopyOfOutput(CopyOutputRequest::CreateRequest( 6296 base::Bind(&EmptyCopyOutputCallback))); 6297 EXPECT_TRUE(copy_layer->HasCopyRequest()); 6298 6299 RenderSurfaceLayerList render_surface_layer_list; 6300 LayerTreeHostCommon::CalcDrawPropsMainInputsForTesting inputs( 6301 root.get(), root->bounds(), &render_surface_layer_list); 6302 inputs.can_adjust_raster_scales = true; 6303 LayerTreeHostCommon::CalculateDrawProperties(&inputs); 6304 6305 // We should have one render surface, as the others are clipped out. 6306 ASSERT_EQ(1u, render_surface_layer_list.size()); 6307 EXPECT_EQ(root->id(), render_surface_layer_list.at(0)->id()); 6308 6309 // The root render surface should only have 1 contributing layer, since the 6310 // other layers are empty/clipped away. 6311 ASSERT_EQ(1u, root->render_surface()->layer_list().size()); 6312 EXPECT_EQ(root->id(), root->render_surface()->layer_list().at(0)->id()); 6313 } 6314 6315 TEST_F(LayerTreeHostCommonTest, VisibleContentRectInsideSurface) { 6316 FakeImplProxy proxy; 6317 TestSharedBitmapManager shared_bitmap_manager; 6318 FakeLayerTreeHostImpl host_impl(&proxy, &shared_bitmap_manager); 6319 host_impl.CreatePendingTree(); 6320 const gfx::Transform identity_matrix; 6321 6322 scoped_refptr<Layer> root = Layer::Create(); 6323 SetLayerPropertiesForTesting(root.get(), 6324 identity_matrix, 6325 gfx::Point3F(), 6326 gfx::PointF(), 6327 gfx::Size(50, 50), 6328 true, 6329 false); 6330 root->SetIsDrawable(true); 6331 6332 // The surface is moved slightly outside of the viewport. 6333 scoped_refptr<Layer> surface = Layer::Create(); 6334 SetLayerPropertiesForTesting(surface.get(), 6335 identity_matrix, 6336 gfx::Point3F(), 6337 gfx::PointF(-10, -20), 6338 gfx::Size(), 6339 true, 6340 false); 6341 surface->SetForceRenderSurface(true); 6342 6343 scoped_refptr<Layer> surface_child = Layer::Create(); 6344 SetLayerPropertiesForTesting(surface_child.get(), 6345 identity_matrix, 6346 gfx::Point3F(), 6347 gfx::PointF(), 6348 gfx::Size(50, 50), 6349 true, 6350 false); 6351 surface_child->SetIsDrawable(true); 6352 6353 surface->AddChild(surface_child); 6354 root->AddChild(surface); 6355 6356 scoped_ptr<FakeLayerTreeHost> host = FakeLayerTreeHost::Create(); 6357 host->SetRootLayer(root); 6358 6359 RenderSurfaceLayerList render_surface_layer_list; 6360 LayerTreeHostCommon::CalcDrawPropsMainInputsForTesting inputs( 6361 root.get(), root->bounds(), &render_surface_layer_list); 6362 inputs.can_adjust_raster_scales = true; 6363 LayerTreeHostCommon::CalculateDrawProperties(&inputs); 6364 6365 // The visible_content_rect for the |surface_child| should not be clipped by 6366 // the viewport. 6367 EXPECT_EQ(gfx::Rect(50, 50).ToString(), 6368 surface_child->visible_content_rect().ToString()); 6369 } 6370 6371 TEST_F(LayerTreeHostCommonTest, TransformedClipParent) { 6372 // Ensure that a transform between the layer and its render surface is not a 6373 // problem. Constructs the following layer tree. 6374 // 6375 // root (a render surface) 6376 // + render_surface 6377 // + clip_parent (scaled) 6378 // + intervening_clipping_layer 6379 // + clip_child 6380 // 6381 // The render surface should be resized correctly and the clip child should 6382 // inherit the right clip rect. 6383 scoped_refptr<Layer> root = Layer::Create(); 6384 scoped_refptr<Layer> render_surface = Layer::Create(); 6385 scoped_refptr<Layer> clip_parent = Layer::Create(); 6386 scoped_refptr<Layer> intervening = Layer::Create(); 6387 scoped_refptr<LayerWithForcedDrawsContent> clip_child = 6388 make_scoped_refptr(new LayerWithForcedDrawsContent); 6389 6390 root->AddChild(render_surface); 6391 render_surface->AddChild(clip_parent); 6392 clip_parent->AddChild(intervening); 6393 intervening->AddChild(clip_child); 6394 6395 clip_child->SetClipParent(clip_parent.get()); 6396 6397 intervening->SetMasksToBounds(true); 6398 clip_parent->SetMasksToBounds(true); 6399 6400 render_surface->SetForceRenderSurface(true); 6401 6402 gfx::Transform scale_transform; 6403 scale_transform.Scale(2, 2); 6404 6405 gfx::Transform identity_transform; 6406 6407 SetLayerPropertiesForTesting(root.get(), 6408 identity_transform, 6409 gfx::Point3F(), 6410 gfx::PointF(), 6411 gfx::Size(50, 50), 6412 true, 6413 false); 6414 SetLayerPropertiesForTesting(render_surface.get(), 6415 identity_transform, 6416 gfx::Point3F(), 6417 gfx::PointF(), 6418 gfx::Size(10, 10), 6419 true, 6420 false); 6421 SetLayerPropertiesForTesting(clip_parent.get(), 6422 scale_transform, 6423 gfx::Point3F(), 6424 gfx::PointF(1.f, 1.f), 6425 gfx::Size(10, 10), 6426 true, 6427 false); 6428 SetLayerPropertiesForTesting(intervening.get(), 6429 identity_transform, 6430 gfx::Point3F(), 6431 gfx::PointF(1.f, 1.f), 6432 gfx::Size(5, 5), 6433 true, 6434 false); 6435 SetLayerPropertiesForTesting(clip_child.get(), 6436 identity_transform, 6437 gfx::Point3F(), 6438 gfx::PointF(1.f, 1.f), 6439 gfx::Size(10, 10), 6440 true, 6441 false); 6442 6443 scoped_ptr<FakeLayerTreeHost> host = FakeLayerTreeHost::Create(); 6444 host->SetRootLayer(root); 6445 6446 ExecuteCalculateDrawProperties(root.get()); 6447 6448 ASSERT_TRUE(root->render_surface()); 6449 ASSERT_TRUE(render_surface->render_surface()); 6450 6451 // Ensure that we've inherited our clip parent's clip and weren't affected 6452 // by the intervening clip layer. 6453 ASSERT_EQ(gfx::Rect(1, 1, 20, 20).ToString(), 6454 clip_parent->clip_rect().ToString()); 6455 ASSERT_EQ(clip_parent->clip_rect().ToString(), 6456 clip_child->clip_rect().ToString()); 6457 ASSERT_EQ(gfx::Rect(3, 3, 10, 10).ToString(), 6458 intervening->clip_rect().ToString()); 6459 6460 // Ensure that the render surface reports a content rect that has been grown 6461 // to accomodate for the clip child. 6462 ASSERT_EQ(gfx::Rect(5, 5, 16, 16).ToString(), 6463 render_surface->render_surface()->content_rect().ToString()); 6464 6465 // The above check implies the two below, but they nicely demonstrate that 6466 // we've grown, despite the intervening layer's clip. 6467 ASSERT_TRUE(clip_parent->clip_rect().Contains( 6468 render_surface->render_surface()->content_rect())); 6469 ASSERT_FALSE(intervening->clip_rect().Contains( 6470 render_surface->render_surface()->content_rect())); 6471 } 6472 6473 TEST_F(LayerTreeHostCommonTest, ClipParentWithInterveningRenderSurface) { 6474 // Ensure that intervening render surfaces are not a problem in the basic 6475 // case. In the following tree, both render surfaces should be resized to 6476 // accomodate for the clip child, despite an intervening clip. 6477 // 6478 // root (a render surface) 6479 // + clip_parent (masks to bounds) 6480 // + render_surface1 (sets opacity) 6481 // + intervening (masks to bounds) 6482 // + render_surface2 (also sets opacity) 6483 // + clip_child 6484 // 6485 scoped_refptr<Layer> root = Layer::Create(); 6486 scoped_refptr<Layer> clip_parent = Layer::Create(); 6487 scoped_refptr<Layer> render_surface1 = Layer::Create(); 6488 scoped_refptr<Layer> intervening = Layer::Create(); 6489 scoped_refptr<Layer> render_surface2 = Layer::Create(); 6490 scoped_refptr<LayerWithForcedDrawsContent> clip_child = 6491 make_scoped_refptr(new LayerWithForcedDrawsContent); 6492 6493 root->AddChild(clip_parent); 6494 clip_parent->AddChild(render_surface1); 6495 render_surface1->AddChild(intervening); 6496 intervening->AddChild(render_surface2); 6497 render_surface2->AddChild(clip_child); 6498 6499 clip_child->SetClipParent(clip_parent.get()); 6500 6501 intervening->SetMasksToBounds(true); 6502 clip_parent->SetMasksToBounds(true); 6503 6504 render_surface1->SetForceRenderSurface(true); 6505 render_surface2->SetForceRenderSurface(true); 6506 6507 gfx::Transform translation_transform; 6508 translation_transform.Translate(2, 2); 6509 6510 gfx::Transform identity_transform; 6511 SetLayerPropertiesForTesting(root.get(), 6512 identity_transform, 6513 gfx::Point3F(), 6514 gfx::PointF(), 6515 gfx::Size(50, 50), 6516 true, 6517 false); 6518 SetLayerPropertiesForTesting(clip_parent.get(), 6519 translation_transform, 6520 gfx::Point3F(), 6521 gfx::PointF(1.f, 1.f), 6522 gfx::Size(40, 40), 6523 true, 6524 false); 6525 SetLayerPropertiesForTesting(render_surface1.get(), 6526 identity_transform, 6527 gfx::Point3F(), 6528 gfx::PointF(), 6529 gfx::Size(10, 10), 6530 true, 6531 false); 6532 SetLayerPropertiesForTesting(intervening.get(), 6533 identity_transform, 6534 gfx::Point3F(), 6535 gfx::PointF(1.f, 1.f), 6536 gfx::Size(5, 5), 6537 true, 6538 false); 6539 SetLayerPropertiesForTesting(render_surface2.get(), 6540 identity_transform, 6541 gfx::Point3F(), 6542 gfx::PointF(), 6543 gfx::Size(10, 10), 6544 true, 6545 false); 6546 SetLayerPropertiesForTesting(clip_child.get(), 6547 identity_transform, 6548 gfx::Point3F(), 6549 gfx::PointF(-10.f, -10.f), 6550 gfx::Size(60, 60), 6551 true, 6552 false); 6553 6554 scoped_ptr<FakeLayerTreeHost> host = FakeLayerTreeHost::Create(); 6555 host->SetRootLayer(root); 6556 6557 ExecuteCalculateDrawProperties(root.get()); 6558 6559 EXPECT_TRUE(root->render_surface()); 6560 EXPECT_TRUE(render_surface1->render_surface()); 6561 EXPECT_TRUE(render_surface2->render_surface()); 6562 6563 // Since the render surfaces could have expanded, they should not clip (their 6564 // bounds would no longer be reliable). We should resort to layer clipping 6565 // in this case. 6566 EXPECT_EQ(gfx::Rect(0, 0, 0, 0).ToString(), 6567 render_surface1->render_surface()->clip_rect().ToString()); 6568 EXPECT_FALSE(render_surface1->render_surface()->is_clipped()); 6569 EXPECT_EQ(gfx::Rect(0, 0, 0, 0).ToString(), 6570 render_surface2->render_surface()->clip_rect().ToString()); 6571 EXPECT_FALSE(render_surface2->render_surface()->is_clipped()); 6572 6573 // NB: clip rects are in target space. 6574 EXPECT_EQ(gfx::Rect(0, 0, 40, 40).ToString(), 6575 render_surface1->clip_rect().ToString()); 6576 EXPECT_TRUE(render_surface1->is_clipped()); 6577 6578 // This value is inherited from the clipping ancestor layer, 'intervening'. 6579 EXPECT_EQ(gfx::Rect(0, 0, 5, 5).ToString(), 6580 render_surface2->clip_rect().ToString()); 6581 EXPECT_TRUE(render_surface2->is_clipped()); 6582 6583 // The content rects of both render surfaces should both have expanded to 6584 // contain the clip child. 6585 EXPECT_EQ(gfx::Rect(0, 0, 40, 40).ToString(), 6586 render_surface1->render_surface()->content_rect().ToString()); 6587 EXPECT_EQ(gfx::Rect(-1, -1, 40, 40).ToString(), 6588 render_surface2->render_surface()->content_rect().ToString()); 6589 6590 // The clip child should have inherited the clip parent's clip (projected to 6591 // the right space, of course), and should have the correctly sized visible 6592 // content rect. 6593 EXPECT_EQ(gfx::Rect(-1, -1, 40, 40).ToString(), 6594 clip_child->clip_rect().ToString()); 6595 EXPECT_EQ(gfx::Rect(9, 9, 40, 40).ToString(), 6596 clip_child->visible_content_rect().ToString()); 6597 EXPECT_TRUE(clip_child->is_clipped()); 6598 } 6599 6600 TEST_F(LayerTreeHostCommonTest, ClipParentScrolledInterveningLayer) { 6601 // Ensure that intervening render surfaces are not a problem, even if there 6602 // is a scroll involved. Note, we do _not_ have to consider any other sort 6603 // of transform. 6604 // 6605 // root (a render surface) 6606 // + clip_parent (masks to bounds) 6607 // + render_surface1 (sets opacity) 6608 // + intervening (masks to bounds AND scrolls) 6609 // + render_surface2 (also sets opacity) 6610 // + clip_child 6611 // 6612 scoped_refptr<Layer> root = Layer::Create(); 6613 scoped_refptr<Layer> clip_parent = Layer::Create(); 6614 scoped_refptr<Layer> render_surface1 = Layer::Create(); 6615 scoped_refptr<Layer> intervening = Layer::Create(); 6616 scoped_refptr<Layer> render_surface2 = Layer::Create(); 6617 scoped_refptr<LayerWithForcedDrawsContent> clip_child = 6618 make_scoped_refptr(new LayerWithForcedDrawsContent); 6619 6620 root->AddChild(clip_parent); 6621 clip_parent->AddChild(render_surface1); 6622 render_surface1->AddChild(intervening); 6623 intervening->AddChild(render_surface2); 6624 render_surface2->AddChild(clip_child); 6625 6626 clip_child->SetClipParent(clip_parent.get()); 6627 6628 intervening->SetMasksToBounds(true); 6629 clip_parent->SetMasksToBounds(true); 6630 intervening->SetScrollClipLayerId(clip_parent->id()); 6631 intervening->SetScrollOffset(gfx::Vector2d(3, 3)); 6632 6633 render_surface1->SetForceRenderSurface(true); 6634 render_surface2->SetForceRenderSurface(true); 6635 6636 gfx::Transform translation_transform; 6637 translation_transform.Translate(2, 2); 6638 6639 gfx::Transform identity_transform; 6640 SetLayerPropertiesForTesting(root.get(), 6641 identity_transform, 6642 gfx::Point3F(), 6643 gfx::PointF(), 6644 gfx::Size(50, 50), 6645 true, 6646 false); 6647 SetLayerPropertiesForTesting(clip_parent.get(), 6648 translation_transform, 6649 gfx::Point3F(), 6650 gfx::PointF(1.f, 1.f), 6651 gfx::Size(40, 40), 6652 true, 6653 false); 6654 SetLayerPropertiesForTesting(render_surface1.get(), 6655 identity_transform, 6656 gfx::Point3F(), 6657 gfx::PointF(), 6658 gfx::Size(10, 10), 6659 true, 6660 false); 6661 SetLayerPropertiesForTesting(intervening.get(), 6662 identity_transform, 6663 gfx::Point3F(), 6664 gfx::PointF(1.f, 1.f), 6665 gfx::Size(5, 5), 6666 true, 6667 false); 6668 SetLayerPropertiesForTesting(render_surface2.get(), 6669 identity_transform, 6670 gfx::Point3F(), 6671 gfx::PointF(), 6672 gfx::Size(10, 10), 6673 true, 6674 false); 6675 SetLayerPropertiesForTesting(clip_child.get(), 6676 identity_transform, 6677 gfx::Point3F(), 6678 gfx::PointF(-10.f, -10.f), 6679 gfx::Size(60, 60), 6680 true, 6681 false); 6682 6683 scoped_ptr<FakeLayerTreeHost> host = FakeLayerTreeHost::Create(); 6684 host->SetRootLayer(root); 6685 6686 ExecuteCalculateDrawProperties(root.get()); 6687 6688 EXPECT_TRUE(root->render_surface()); 6689 EXPECT_TRUE(render_surface1->render_surface()); 6690 EXPECT_TRUE(render_surface2->render_surface()); 6691 6692 // Since the render surfaces could have expanded, they should not clip (their 6693 // bounds would no longer be reliable). We should resort to layer clipping 6694 // in this case. 6695 EXPECT_EQ(gfx::Rect(0, 0, 0, 0).ToString(), 6696 render_surface1->render_surface()->clip_rect().ToString()); 6697 EXPECT_FALSE(render_surface1->render_surface()->is_clipped()); 6698 EXPECT_EQ(gfx::Rect(0, 0, 0, 0).ToString(), 6699 render_surface2->render_surface()->clip_rect().ToString()); 6700 EXPECT_FALSE(render_surface2->render_surface()->is_clipped()); 6701 6702 // NB: clip rects are in target space. 6703 EXPECT_EQ(gfx::Rect(0, 0, 40, 40).ToString(), 6704 render_surface1->clip_rect().ToString()); 6705 EXPECT_TRUE(render_surface1->is_clipped()); 6706 6707 // This value is inherited from the clipping ancestor layer, 'intervening'. 6708 EXPECT_EQ(gfx::Rect(2, 2, 3, 3).ToString(), 6709 render_surface2->clip_rect().ToString()); 6710 EXPECT_TRUE(render_surface2->is_clipped()); 6711 6712 // The content rects of both render surfaces should both have expanded to 6713 // contain the clip child. 6714 EXPECT_EQ(gfx::Rect(0, 0, 40, 40).ToString(), 6715 render_surface1->render_surface()->content_rect().ToString()); 6716 EXPECT_EQ(gfx::Rect(2, 2, 40, 40).ToString(), 6717 render_surface2->render_surface()->content_rect().ToString()); 6718 6719 // The clip child should have inherited the clip parent's clip (projected to 6720 // the right space, of course), and should have the correctly sized visible 6721 // content rect. 6722 EXPECT_EQ(gfx::Rect(2, 2, 40, 40).ToString(), 6723 clip_child->clip_rect().ToString()); 6724 EXPECT_EQ(gfx::Rect(12, 12, 40, 40).ToString(), 6725 clip_child->visible_content_rect().ToString()); 6726 EXPECT_TRUE(clip_child->is_clipped()); 6727 } 6728 6729 TEST_F(LayerTreeHostCommonTest, DescendantsOfClipChildren) { 6730 // Ensures that descendants of the clip child inherit the correct clip. 6731 // 6732 // root (a render surface) 6733 // + clip_parent (masks to bounds) 6734 // + intervening (masks to bounds) 6735 // + clip_child 6736 // + child 6737 // 6738 scoped_refptr<Layer> root = Layer::Create(); 6739 scoped_refptr<Layer> clip_parent = Layer::Create(); 6740 scoped_refptr<Layer> intervening = Layer::Create(); 6741 scoped_refptr<Layer> clip_child = Layer::Create(); 6742 scoped_refptr<LayerWithForcedDrawsContent> child = 6743 make_scoped_refptr(new LayerWithForcedDrawsContent); 6744 6745 root->AddChild(clip_parent); 6746 clip_parent->AddChild(intervening); 6747 intervening->AddChild(clip_child); 6748 clip_child->AddChild(child); 6749 6750 clip_child->SetClipParent(clip_parent.get()); 6751 6752 intervening->SetMasksToBounds(true); 6753 clip_parent->SetMasksToBounds(true); 6754 6755 gfx::Transform identity_transform; 6756 SetLayerPropertiesForTesting(root.get(), 6757 identity_transform, 6758 gfx::Point3F(), 6759 gfx::PointF(), 6760 gfx::Size(50, 50), 6761 true, 6762 false); 6763 SetLayerPropertiesForTesting(clip_parent.get(), 6764 identity_transform, 6765 gfx::Point3F(), 6766 gfx::PointF(), 6767 gfx::Size(40, 40), 6768 true, 6769 false); 6770 SetLayerPropertiesForTesting(intervening.get(), 6771 identity_transform, 6772 gfx::Point3F(), 6773 gfx::PointF(), 6774 gfx::Size(5, 5), 6775 true, 6776 false); 6777 SetLayerPropertiesForTesting(clip_child.get(), 6778 identity_transform, 6779 gfx::Point3F(), 6780 gfx::PointF(), 6781 gfx::Size(60, 60), 6782 true, 6783 false); 6784 SetLayerPropertiesForTesting(child.get(), 6785 identity_transform, 6786 gfx::Point3F(), 6787 gfx::PointF(), 6788 gfx::Size(60, 60), 6789 true, 6790 false); 6791 6792 scoped_ptr<FakeLayerTreeHost> host = FakeLayerTreeHost::Create(); 6793 host->SetRootLayer(root); 6794 6795 ExecuteCalculateDrawProperties(root.get()); 6796 6797 EXPECT_TRUE(root->render_surface()); 6798 6799 // Neither the clip child nor its descendant should have inherited the clip 6800 // from |intervening|. 6801 EXPECT_EQ(gfx::Rect(0, 0, 40, 40).ToString(), 6802 clip_child->clip_rect().ToString()); 6803 EXPECT_TRUE(clip_child->is_clipped()); 6804 EXPECT_EQ(gfx::Rect(0, 0, 40, 40).ToString(), 6805 child->visible_content_rect().ToString()); 6806 EXPECT_TRUE(child->is_clipped()); 6807 } 6808 6809 TEST_F(LayerTreeHostCommonTest, 6810 SurfacesShouldBeUnaffectedByNonDescendantClipChildren) { 6811 // Ensures that non-descendant clip children in the tree do not affect 6812 // render surfaces. 6813 // 6814 // root (a render surface) 6815 // + clip_parent (masks to bounds) 6816 // + render_surface1 6817 // + clip_child 6818 // + render_surface2 6819 // + non_clip_child 6820 // 6821 // In this example render_surface2 should be unaffected by clip_child. 6822 scoped_refptr<Layer> root = Layer::Create(); 6823 scoped_refptr<Layer> clip_parent = Layer::Create(); 6824 scoped_refptr<Layer> render_surface1 = Layer::Create(); 6825 scoped_refptr<LayerWithForcedDrawsContent> clip_child = 6826 make_scoped_refptr(new LayerWithForcedDrawsContent); 6827 scoped_refptr<Layer> render_surface2 = Layer::Create(); 6828 scoped_refptr<LayerWithForcedDrawsContent> non_clip_child = 6829 make_scoped_refptr(new LayerWithForcedDrawsContent); 6830 6831 root->AddChild(clip_parent); 6832 clip_parent->AddChild(render_surface1); 6833 render_surface1->AddChild(clip_child); 6834 clip_parent->AddChild(render_surface2); 6835 render_surface2->AddChild(non_clip_child); 6836 6837 clip_child->SetClipParent(clip_parent.get()); 6838 6839 clip_parent->SetMasksToBounds(true); 6840 render_surface1->SetMasksToBounds(true); 6841 6842 gfx::Transform identity_transform; 6843 SetLayerPropertiesForTesting(root.get(), 6844 identity_transform, 6845 gfx::Point3F(), 6846 gfx::PointF(), 6847 gfx::Size(15, 15), 6848 true, 6849 false); 6850 SetLayerPropertiesForTesting(clip_parent.get(), 6851 identity_transform, 6852 gfx::Point3F(), 6853 gfx::PointF(), 6854 gfx::Size(10, 10), 6855 true, 6856 false); 6857 SetLayerPropertiesForTesting(render_surface1.get(), 6858 identity_transform, 6859 gfx::Point3F(), 6860 gfx::PointF(5, 5), 6861 gfx::Size(5, 5), 6862 true, 6863 false); 6864 SetLayerPropertiesForTesting(render_surface2.get(), 6865 identity_transform, 6866 gfx::Point3F(), 6867 gfx::PointF(), 6868 gfx::Size(5, 5), 6869 true, 6870 false); 6871 SetLayerPropertiesForTesting(clip_child.get(), 6872 identity_transform, 6873 gfx::Point3F(), 6874 gfx::PointF(-1, 1), 6875 gfx::Size(10, 10), 6876 true, 6877 false); 6878 SetLayerPropertiesForTesting(non_clip_child.get(), 6879 identity_transform, 6880 gfx::Point3F(), 6881 gfx::PointF(), 6882 gfx::Size(5, 5), 6883 true, 6884 false); 6885 6886 render_surface1->SetForceRenderSurface(true); 6887 render_surface2->SetForceRenderSurface(true); 6888 6889 scoped_ptr<FakeLayerTreeHost> host = FakeLayerTreeHost::Create(); 6890 host->SetRootLayer(root); 6891 6892 ExecuteCalculateDrawProperties(root.get()); 6893 6894 EXPECT_TRUE(root->render_surface()); 6895 EXPECT_TRUE(render_surface1->render_surface()); 6896 EXPECT_TRUE(render_surface2->render_surface()); 6897 6898 EXPECT_EQ(gfx::Rect(0, 0, 5, 5).ToString(), 6899 render_surface1->clip_rect().ToString()); 6900 EXPECT_TRUE(render_surface1->is_clipped()); 6901 6902 // The render surface should not clip (it has unclipped descendants), instead 6903 // it should rely on layer clipping. 6904 EXPECT_EQ(gfx::Rect(0, 0, 0, 0).ToString(), 6905 render_surface1->render_surface()->clip_rect().ToString()); 6906 EXPECT_FALSE(render_surface1->render_surface()->is_clipped()); 6907 6908 // That said, it should have grown to accomodate the unclipped descendant. 6909 EXPECT_EQ(gfx::Rect(-1, 1, 6, 4).ToString(), 6910 render_surface1->render_surface()->content_rect().ToString()); 6911 6912 // This render surface should clip. It has no unclipped descendants. 6913 EXPECT_EQ(gfx::Rect(0, 0, 5, 5).ToString(), 6914 render_surface2->clip_rect().ToString()); 6915 EXPECT_TRUE(render_surface2->render_surface()->is_clipped()); 6916 6917 // It also shouldn't have grown to accomodate the clip child. 6918 EXPECT_EQ(gfx::Rect(0, 0, 5, 5).ToString(), 6919 render_surface2->render_surface()->content_rect().ToString()); 6920 6921 // Sanity check our num_unclipped_descendants values. 6922 EXPECT_EQ(1, render_surface1->num_unclipped_descendants()); 6923 EXPECT_EQ(0, render_surface2->num_unclipped_descendants()); 6924 } 6925 6926 TEST_F(LayerTreeHostCommonTest, CanRenderToSeparateSurface) { 6927 FakeImplProxy proxy; 6928 TestSharedBitmapManager shared_bitmap_manager; 6929 FakeLayerTreeHostImpl host_impl(&proxy, &shared_bitmap_manager); 6930 scoped_ptr<LayerImpl> root = 6931 LayerImpl::Create(host_impl.active_tree(), 12345); 6932 scoped_ptr<LayerImpl> child1 = 6933 LayerImpl::Create(host_impl.active_tree(), 123456); 6934 scoped_ptr<LayerImpl> child2 = 6935 LayerImpl::Create(host_impl.active_tree(), 1234567); 6936 scoped_ptr<LayerImpl> child3 = 6937 LayerImpl::Create(host_impl.active_tree(), 12345678); 6938 6939 gfx::Transform identity_matrix; 6940 gfx::Point3F transform_origin; 6941 gfx::PointF position; 6942 gfx::Size bounds(100, 100); 6943 SetLayerPropertiesForTesting(root.get(), 6944 identity_matrix, 6945 transform_origin, 6946 position, 6947 bounds, 6948 true, 6949 false); 6950 root->SetDrawsContent(true); 6951 6952 // This layer structure normally forces render surface due to preserves3d 6953 // behavior. 6954 SetLayerPropertiesForTesting(child1.get(), 6955 identity_matrix, 6956 transform_origin, 6957 position, 6958 bounds, 6959 false, 6960 true); 6961 child1->SetDrawsContent(true); 6962 SetLayerPropertiesForTesting(child2.get(), 6963 identity_matrix, 6964 transform_origin, 6965 position, 6966 bounds, 6967 true, 6968 false); 6969 child2->SetDrawsContent(true); 6970 SetLayerPropertiesForTesting(child3.get(), 6971 identity_matrix, 6972 transform_origin, 6973 position, 6974 bounds, 6975 true, 6976 false); 6977 child3->SetDrawsContent(true); 6978 6979 child2->Set3dSortingContextId(1); 6980 child3->Set3dSortingContextId(1); 6981 6982 child2->AddChild(child3.Pass()); 6983 child1->AddChild(child2.Pass()); 6984 root->AddChild(child1.Pass()); 6985 6986 { 6987 LayerImplList render_surface_layer_list; 6988 LayerTreeHostCommon::CalcDrawPropsImplInputsForTesting inputs( 6989 root.get(), root->bounds(), &render_surface_layer_list); 6990 inputs.can_render_to_separate_surface = true; 6991 LayerTreeHostCommon::CalculateDrawProperties(&inputs); 6992 6993 EXPECT_EQ(2u, render_surface_layer_list.size()); 6994 } 6995 6996 { 6997 LayerImplList render_surface_layer_list; 6998 LayerTreeHostCommon::CalcDrawPropsImplInputsForTesting inputs( 6999 root.get(), root->bounds(), &render_surface_layer_list); 7000 inputs.can_render_to_separate_surface = false; 7001 LayerTreeHostCommon::CalculateDrawProperties(&inputs); 7002 7003 EXPECT_EQ(1u, render_surface_layer_list.size()); 7004 } 7005 } 7006 7007 TEST_F(LayerTreeHostCommonTest, DoNotIncludeBackfaceInvisibleSurfaces) { 7008 scoped_refptr<Layer> root = Layer::Create(); 7009 scoped_refptr<Layer> render_surface = Layer::Create(); 7010 scoped_refptr<LayerWithForcedDrawsContent> child = 7011 make_scoped_refptr(new LayerWithForcedDrawsContent); 7012 7013 root->AddChild(render_surface); 7014 render_surface->AddChild(child); 7015 7016 gfx::Transform identity_transform; 7017 SetLayerPropertiesForTesting(root.get(), 7018 identity_transform, 7019 gfx::Point3F(), 7020 gfx::PointF(), 7021 gfx::Size(50, 50), 7022 true, 7023 false); 7024 SetLayerPropertiesForTesting(render_surface.get(), 7025 identity_transform, 7026 gfx::Point3F(), 7027 gfx::PointF(), 7028 gfx::Size(30, 30), 7029 false, 7030 true); 7031 SetLayerPropertiesForTesting(child.get(), 7032 identity_transform, 7033 gfx::Point3F(), 7034 gfx::PointF(), 7035 gfx::Size(20, 20), 7036 true, 7037 false); 7038 7039 root->SetShouldFlattenTransform(false); 7040 root->Set3dSortingContextId(1); 7041 render_surface->SetDoubleSided(false); 7042 render_surface->SetForceRenderSurface(true); 7043 7044 scoped_ptr<FakeLayerTreeHost> host = FakeLayerTreeHost::Create(); 7045 host->SetRootLayer(root); 7046 7047 ExecuteCalculateDrawProperties(root.get()); 7048 7049 EXPECT_EQ(2u, render_surface_layer_list()->size()); 7050 EXPECT_EQ(1u, 7051 render_surface_layer_list()->at(0) 7052 ->render_surface()->layer_list().size()); 7053 EXPECT_EQ(1u, 7054 render_surface_layer_list()->at(1) 7055 ->render_surface()->layer_list().size()); 7056 7057 gfx::Transform rotation_transform = identity_transform; 7058 rotation_transform.RotateAboutXAxis(180.0); 7059 7060 render_surface->SetTransform(rotation_transform); 7061 7062 ExecuteCalculateDrawProperties(root.get()); 7063 7064 EXPECT_EQ(1u, render_surface_layer_list()->size()); 7065 EXPECT_EQ(0u, 7066 render_surface_layer_list()->at(0) 7067 ->render_surface()->layer_list().size()); 7068 } 7069 7070 TEST_F(LayerTreeHostCommonTest, ClippedByScrollParent) { 7071 // Checks that the simple case (being clipped by a scroll parent that would 7072 // have been processed before you anyhow) results in the right clips. 7073 // 7074 // + root 7075 // + scroll_parent_border 7076 // | + scroll_parent_clip 7077 // | + scroll_parent 7078 // + scroll_child 7079 // 7080 scoped_refptr<Layer> root = Layer::Create(); 7081 scoped_refptr<Layer> scroll_parent_border = Layer::Create(); 7082 scoped_refptr<Layer> scroll_parent_clip = Layer::Create(); 7083 scoped_refptr<LayerWithForcedDrawsContent> scroll_parent = 7084 make_scoped_refptr(new LayerWithForcedDrawsContent); 7085 scoped_refptr<LayerWithForcedDrawsContent> scroll_child = 7086 make_scoped_refptr(new LayerWithForcedDrawsContent); 7087 7088 root->AddChild(scroll_child); 7089 7090 root->AddChild(scroll_parent_border); 7091 scroll_parent_border->AddChild(scroll_parent_clip); 7092 scroll_parent_clip->AddChild(scroll_parent); 7093 7094 scroll_parent_clip->SetMasksToBounds(true); 7095 7096 scroll_child->SetScrollParent(scroll_parent.get()); 7097 7098 gfx::Transform identity_transform; 7099 SetLayerPropertiesForTesting(root.get(), 7100 identity_transform, 7101 gfx::Point3F(), 7102 gfx::PointF(), 7103 gfx::Size(50, 50), 7104 true, 7105 false); 7106 SetLayerPropertiesForTesting(scroll_parent_border.get(), 7107 identity_transform, 7108 gfx::Point3F(), 7109 gfx::PointF(), 7110 gfx::Size(40, 40), 7111 true, 7112 false); 7113 SetLayerPropertiesForTesting(scroll_parent_clip.get(), 7114 identity_transform, 7115 gfx::Point3F(), 7116 gfx::PointF(), 7117 gfx::Size(30, 30), 7118 true, 7119 false); 7120 SetLayerPropertiesForTesting(scroll_parent.get(), 7121 identity_transform, 7122 gfx::Point3F(), 7123 gfx::PointF(), 7124 gfx::Size(50, 50), 7125 true, 7126 false); 7127 SetLayerPropertiesForTesting(scroll_child.get(), 7128 identity_transform, 7129 gfx::Point3F(), 7130 gfx::PointF(), 7131 gfx::Size(50, 50), 7132 true, 7133 false); 7134 7135 scoped_ptr<FakeLayerTreeHost> host = FakeLayerTreeHost::Create(); 7136 host->SetRootLayer(root); 7137 7138 ExecuteCalculateDrawProperties(root.get()); 7139 7140 EXPECT_TRUE(root->render_surface()); 7141 7142 EXPECT_EQ(gfx::Rect(0, 0, 30, 30).ToString(), 7143 scroll_child->clip_rect().ToString()); 7144 EXPECT_TRUE(scroll_child->is_clipped()); 7145 } 7146 7147 TEST_F(LayerTreeHostCommonTest, SingularTransformSubtreesDoNotDraw) { 7148 scoped_refptr<LayerWithForcedDrawsContent> root = 7149 make_scoped_refptr(new LayerWithForcedDrawsContent); 7150 scoped_refptr<LayerWithForcedDrawsContent> parent = 7151 make_scoped_refptr(new LayerWithForcedDrawsContent); 7152 scoped_refptr<LayerWithForcedDrawsContent> child = 7153 make_scoped_refptr(new LayerWithForcedDrawsContent); 7154 7155 root->AddChild(parent); 7156 parent->AddChild(child); 7157 7158 gfx::Transform identity_transform; 7159 SetLayerPropertiesForTesting(root.get(), 7160 identity_transform, 7161 gfx::Point3F(), 7162 gfx::PointF(), 7163 gfx::Size(50, 50), 7164 true, 7165 true); 7166 root->SetForceRenderSurface(true); 7167 SetLayerPropertiesForTesting(parent.get(), 7168 identity_transform, 7169 gfx::Point3F(), 7170 gfx::PointF(), 7171 gfx::Size(30, 30), 7172 true, 7173 true); 7174 parent->SetForceRenderSurface(true); 7175 SetLayerPropertiesForTesting(child.get(), 7176 identity_transform, 7177 gfx::Point3F(), 7178 gfx::PointF(), 7179 gfx::Size(20, 20), 7180 true, 7181 true); 7182 child->SetForceRenderSurface(true); 7183 7184 scoped_ptr<FakeLayerTreeHost> host = FakeLayerTreeHost::Create(); 7185 host->SetRootLayer(root); 7186 7187 ExecuteCalculateDrawProperties(root.get()); 7188 7189 EXPECT_EQ(3u, render_surface_layer_list()->size()); 7190 7191 gfx::Transform singular_transform; 7192 singular_transform.Scale3d( 7193 SkDoubleToMScalar(1.0), SkDoubleToMScalar(1.0), SkDoubleToMScalar(0.0)); 7194 7195 child->SetTransform(singular_transform); 7196 7197 ExecuteCalculateDrawProperties(root.get()); 7198 7199 EXPECT_EQ(2u, render_surface_layer_list()->size()); 7200 7201 // Ensure that the entire subtree under a layer with singular transform does 7202 // not get rendered. 7203 parent->SetTransform(singular_transform); 7204 child->SetTransform(identity_transform); 7205 7206 ExecuteCalculateDrawProperties(root.get()); 7207 7208 EXPECT_EQ(1u, render_surface_layer_list()->size()); 7209 } 7210 7211 TEST_F(LayerTreeHostCommonTest, ClippedByOutOfOrderScrollParent) { 7212 // Checks that clipping by a scroll parent that follows you in paint order 7213 // still results in correct clipping. 7214 // 7215 // + root 7216 // + scroll_child 7217 // + scroll_parent_border 7218 // + scroll_parent_clip 7219 // + scroll_parent 7220 // 7221 scoped_refptr<Layer> root = Layer::Create(); 7222 scoped_refptr<Layer> scroll_parent_border = Layer::Create(); 7223 scoped_refptr<Layer> scroll_parent_clip = Layer::Create(); 7224 scoped_refptr<LayerWithForcedDrawsContent> scroll_parent = 7225 make_scoped_refptr(new LayerWithForcedDrawsContent); 7226 scoped_refptr<LayerWithForcedDrawsContent> scroll_child = 7227 make_scoped_refptr(new LayerWithForcedDrawsContent); 7228 7229 root->AddChild(scroll_parent_border); 7230 scroll_parent_border->AddChild(scroll_parent_clip); 7231 scroll_parent_clip->AddChild(scroll_parent); 7232 7233 root->AddChild(scroll_child); 7234 7235 scroll_parent_clip->SetMasksToBounds(true); 7236 7237 scroll_child->SetScrollParent(scroll_parent.get()); 7238 7239 gfx::Transform identity_transform; 7240 SetLayerPropertiesForTesting(root.get(), 7241 identity_transform, 7242 gfx::Point3F(), 7243 gfx::PointF(), 7244 gfx::Size(50, 50), 7245 true, 7246 false); 7247 SetLayerPropertiesForTesting(scroll_parent_border.get(), 7248 identity_transform, 7249 gfx::Point3F(), 7250 gfx::PointF(), 7251 gfx::Size(40, 40), 7252 true, 7253 false); 7254 SetLayerPropertiesForTesting(scroll_parent_clip.get(), 7255 identity_transform, 7256 gfx::Point3F(), 7257 gfx::PointF(), 7258 gfx::Size(30, 30), 7259 true, 7260 false); 7261 SetLayerPropertiesForTesting(scroll_parent.get(), 7262 identity_transform, 7263 gfx::Point3F(), 7264 gfx::PointF(), 7265 gfx::Size(50, 50), 7266 true, 7267 false); 7268 SetLayerPropertiesForTesting(scroll_child.get(), 7269 identity_transform, 7270 gfx::Point3F(), 7271 gfx::PointF(), 7272 gfx::Size(50, 50), 7273 true, 7274 false); 7275 7276 scoped_ptr<FakeLayerTreeHost> host = FakeLayerTreeHost::Create(); 7277 host->SetRootLayer(root); 7278 7279 ExecuteCalculateDrawProperties(root.get()); 7280 7281 EXPECT_TRUE(root->render_surface()); 7282 7283 EXPECT_EQ(gfx::Rect(0, 0, 30, 30).ToString(), 7284 scroll_child->clip_rect().ToString()); 7285 EXPECT_TRUE(scroll_child->is_clipped()); 7286 } 7287 7288 TEST_F(LayerTreeHostCommonTest, ClippedByOutOfOrderScrollGrandparent) { 7289 // Checks that clipping by a scroll parent and scroll grandparent that follow 7290 // you in paint order still results in correct clipping. 7291 // 7292 // + root 7293 // + scroll_child 7294 // + scroll_parent_border 7295 // | + scroll_parent_clip 7296 // | + scroll_parent 7297 // + scroll_grandparent_border 7298 // + scroll_grandparent_clip 7299 // + scroll_grandparent 7300 // 7301 scoped_refptr<Layer> root = Layer::Create(); 7302 scoped_refptr<Layer> scroll_parent_border = Layer::Create(); 7303 scoped_refptr<Layer> scroll_parent_clip = Layer::Create(); 7304 scoped_refptr<LayerWithForcedDrawsContent> scroll_parent = 7305 make_scoped_refptr(new LayerWithForcedDrawsContent); 7306 7307 scoped_refptr<Layer> scroll_grandparent_border = Layer::Create(); 7308 scoped_refptr<Layer> scroll_grandparent_clip = Layer::Create(); 7309 scoped_refptr<LayerWithForcedDrawsContent> scroll_grandparent = 7310 make_scoped_refptr(new LayerWithForcedDrawsContent); 7311 7312 scoped_refptr<LayerWithForcedDrawsContent> scroll_child = 7313 make_scoped_refptr(new LayerWithForcedDrawsContent); 7314 7315 root->AddChild(scroll_child); 7316 7317 root->AddChild(scroll_parent_border); 7318 scroll_parent_border->AddChild(scroll_parent_clip); 7319 scroll_parent_clip->AddChild(scroll_parent); 7320 7321 root->AddChild(scroll_grandparent_border); 7322 scroll_grandparent_border->AddChild(scroll_grandparent_clip); 7323 scroll_grandparent_clip->AddChild(scroll_grandparent); 7324 7325 scroll_parent_clip->SetMasksToBounds(true); 7326 scroll_grandparent_clip->SetMasksToBounds(true); 7327 7328 scroll_child->SetScrollParent(scroll_parent.get()); 7329 scroll_parent_border->SetScrollParent(scroll_grandparent.get()); 7330 7331 gfx::Transform identity_transform; 7332 SetLayerPropertiesForTesting(root.get(), 7333 identity_transform, 7334 gfx::Point3F(), 7335 gfx::PointF(), 7336 gfx::Size(50, 50), 7337 true, 7338 false); 7339 SetLayerPropertiesForTesting(scroll_grandparent_border.get(), 7340 identity_transform, 7341 gfx::Point3F(), 7342 gfx::PointF(), 7343 gfx::Size(40, 40), 7344 true, 7345 false); 7346 SetLayerPropertiesForTesting(scroll_grandparent_clip.get(), 7347 identity_transform, 7348 gfx::Point3F(), 7349 gfx::PointF(), 7350 gfx::Size(20, 20), 7351 true, 7352 false); 7353 SetLayerPropertiesForTesting(scroll_grandparent.get(), 7354 identity_transform, 7355 gfx::Point3F(), 7356 gfx::PointF(), 7357 gfx::Size(50, 50), 7358 true, 7359 false); 7360 SetLayerPropertiesForTesting(scroll_parent_border.get(), 7361 identity_transform, 7362 gfx::Point3F(), 7363 gfx::PointF(), 7364 gfx::Size(40, 40), 7365 true, 7366 false); 7367 SetLayerPropertiesForTesting(scroll_parent_clip.get(), 7368 identity_transform, 7369 gfx::Point3F(), 7370 gfx::PointF(), 7371 gfx::Size(30, 30), 7372 true, 7373 false); 7374 SetLayerPropertiesForTesting(scroll_parent.get(), 7375 identity_transform, 7376 gfx::Point3F(), 7377 gfx::PointF(), 7378 gfx::Size(50, 50), 7379 true, 7380 false); 7381 SetLayerPropertiesForTesting(scroll_child.get(), 7382 identity_transform, 7383 gfx::Point3F(), 7384 gfx::PointF(), 7385 gfx::Size(50, 50), 7386 true, 7387 false); 7388 7389 scoped_ptr<FakeLayerTreeHost> host = FakeLayerTreeHost::Create(); 7390 host->SetRootLayer(root); 7391 7392 ExecuteCalculateDrawProperties(root.get()); 7393 7394 EXPECT_TRUE(root->render_surface()); 7395 7396 EXPECT_EQ(gfx::Rect(0, 0, 20, 20).ToString(), 7397 scroll_child->clip_rect().ToString()); 7398 EXPECT_TRUE(scroll_child->is_clipped()); 7399 7400 // Despite the fact that we visited the above layers out of order to get the 7401 // correct clip, the layer lists should be unaffected. 7402 EXPECT_EQ(3u, root->render_surface()->layer_list().size()); 7403 EXPECT_EQ(scroll_child.get(), 7404 root->render_surface()->layer_list().at(0)); 7405 EXPECT_EQ(scroll_parent.get(), 7406 root->render_surface()->layer_list().at(1)); 7407 EXPECT_EQ(scroll_grandparent.get(), 7408 root->render_surface()->layer_list().at(2)); 7409 } 7410 7411 TEST_F(LayerTreeHostCommonTest, OutOfOrderClippingRequiresRSLLSorting) { 7412 // Ensures that even if we visit layers out of order, we still produce a 7413 // correctly ordered render surface layer list. 7414 // + root 7415 // + scroll_child 7416 // + scroll_parent_border 7417 // + scroll_parent_clip 7418 // + scroll_parent 7419 // + render_surface1 7420 // + scroll_grandparent_border 7421 // + scroll_grandparent_clip 7422 // + scroll_grandparent 7423 // + render_surface2 7424 // 7425 scoped_refptr<LayerWithForcedDrawsContent> root = 7426 make_scoped_refptr(new LayerWithForcedDrawsContent); 7427 7428 scoped_refptr<Layer> scroll_parent_border = Layer::Create(); 7429 scoped_refptr<Layer> scroll_parent_clip = Layer::Create(); 7430 scoped_refptr<LayerWithForcedDrawsContent> scroll_parent = 7431 make_scoped_refptr(new LayerWithForcedDrawsContent); 7432 scoped_refptr<LayerWithForcedDrawsContent> render_surface1 = 7433 make_scoped_refptr(new LayerWithForcedDrawsContent); 7434 7435 scoped_refptr<Layer> scroll_grandparent_border = Layer::Create(); 7436 scoped_refptr<Layer> scroll_grandparent_clip = Layer::Create(); 7437 scoped_refptr<LayerWithForcedDrawsContent> scroll_grandparent = 7438 make_scoped_refptr(new LayerWithForcedDrawsContent); 7439 scoped_refptr<LayerWithForcedDrawsContent> render_surface2 = 7440 make_scoped_refptr(new LayerWithForcedDrawsContent); 7441 7442 scoped_refptr<LayerWithForcedDrawsContent> scroll_child = 7443 make_scoped_refptr(new LayerWithForcedDrawsContent); 7444 7445 root->AddChild(scroll_child); 7446 7447 root->AddChild(scroll_parent_border); 7448 scroll_parent_border->AddChild(scroll_parent_clip); 7449 scroll_parent_clip->AddChild(scroll_parent); 7450 scroll_parent->AddChild(render_surface2); 7451 7452 root->AddChild(scroll_grandparent_border); 7453 scroll_grandparent_border->AddChild(scroll_grandparent_clip); 7454 scroll_grandparent_clip->AddChild(scroll_grandparent); 7455 scroll_grandparent->AddChild(render_surface1); 7456 7457 scroll_parent_clip->SetMasksToBounds(true); 7458 scroll_grandparent_clip->SetMasksToBounds(true); 7459 7460 scroll_child->SetScrollParent(scroll_parent.get()); 7461 scroll_parent_border->SetScrollParent(scroll_grandparent.get()); 7462 7463 render_surface1->SetForceRenderSurface(true); 7464 render_surface2->SetForceRenderSurface(true); 7465 7466 gfx::Transform identity_transform; 7467 SetLayerPropertiesForTesting(root.get(), 7468 identity_transform, 7469 gfx::Point3F(), 7470 gfx::PointF(), 7471 gfx::Size(50, 50), 7472 true, 7473 false); 7474 SetLayerPropertiesForTesting(scroll_grandparent_border.get(), 7475 identity_transform, 7476 gfx::Point3F(), 7477 gfx::PointF(), 7478 gfx::Size(40, 40), 7479 true, 7480 false); 7481 SetLayerPropertiesForTesting(scroll_grandparent_clip.get(), 7482 identity_transform, 7483 gfx::Point3F(), 7484 gfx::PointF(), 7485 gfx::Size(20, 20), 7486 true, 7487 false); 7488 SetLayerPropertiesForTesting(scroll_grandparent.get(), 7489 identity_transform, 7490 gfx::Point3F(), 7491 gfx::PointF(), 7492 gfx::Size(50, 50), 7493 true, 7494 false); 7495 SetLayerPropertiesForTesting(render_surface1.get(), 7496 identity_transform, 7497 gfx::Point3F(), 7498 gfx::PointF(), 7499 gfx::Size(50, 50), 7500 true, 7501 false); 7502 SetLayerPropertiesForTesting(scroll_parent_border.get(), 7503 identity_transform, 7504 gfx::Point3F(), 7505 gfx::PointF(), 7506 gfx::Size(40, 40), 7507 true, 7508 false); 7509 SetLayerPropertiesForTesting(scroll_parent_clip.get(), 7510 identity_transform, 7511 gfx::Point3F(), 7512 gfx::PointF(), 7513 gfx::Size(30, 30), 7514 true, 7515 false); 7516 SetLayerPropertiesForTesting(scroll_parent.get(), 7517 identity_transform, 7518 gfx::Point3F(), 7519 gfx::PointF(), 7520 gfx::Size(50, 50), 7521 true, 7522 false); 7523 SetLayerPropertiesForTesting(render_surface2.get(), 7524 identity_transform, 7525 gfx::Point3F(), 7526 gfx::PointF(), 7527 gfx::Size(50, 50), 7528 true, 7529 false); 7530 SetLayerPropertiesForTesting(scroll_child.get(), 7531 identity_transform, 7532 gfx::Point3F(), 7533 gfx::PointF(), 7534 gfx::Size(50, 50), 7535 true, 7536 false); 7537 7538 scoped_ptr<FakeLayerTreeHost> host = FakeLayerTreeHost::Create(); 7539 host->SetRootLayer(root); 7540 7541 RenderSurfaceLayerList render_surface_layer_list; 7542 LayerTreeHostCommon::CalcDrawPropsMainInputsForTesting inputs( 7543 root.get(), 7544 root->bounds(), 7545 identity_transform, 7546 &render_surface_layer_list); 7547 7548 LayerTreeHostCommon::CalculateDrawProperties(&inputs); 7549 7550 EXPECT_TRUE(root->render_surface()); 7551 7552 EXPECT_EQ(gfx::Rect(0, 0, 20, 20).ToString(), 7553 scroll_child->clip_rect().ToString()); 7554 EXPECT_TRUE(scroll_child->is_clipped()); 7555 7556 // Despite the fact that we had to process the layers out of order to get the 7557 // right clip, our render_surface_layer_list's order should be unaffected. 7558 EXPECT_EQ(3u, render_surface_layer_list.size()); 7559 EXPECT_EQ(root.get(), render_surface_layer_list.at(0)); 7560 EXPECT_EQ(render_surface2.get(), render_surface_layer_list.at(1)); 7561 EXPECT_EQ(render_surface1.get(), render_surface_layer_list.at(2)); 7562 EXPECT_TRUE(render_surface_layer_list.at(0)->render_surface()); 7563 EXPECT_TRUE(render_surface_layer_list.at(1)->render_surface()); 7564 EXPECT_TRUE(render_surface_layer_list.at(2)->render_surface()); 7565 } 7566 7567 TEST_F(LayerTreeHostCommonTest, DoNotClobberSorting) { 7568 // We rearrange layer list contributions if we have to visit children out of 7569 // order, but it should be a 'stable' rearrangement. That is, the layer list 7570 // additions for a single layer should not be reordered, though their position 7571 // wrt to the contributions due to a sibling may vary. 7572 // 7573 // + root 7574 // + scroll_child 7575 // + top_content 7576 // + bottom_content 7577 // + scroll_parent_border 7578 // + scroll_parent_clip 7579 // + scroll_parent 7580 // 7581 FakeImplProxy proxy; 7582 TestSharedBitmapManager shared_bitmap_manager; 7583 FakeLayerTreeHostImpl host_impl(&proxy, &shared_bitmap_manager); 7584 host_impl.CreatePendingTree(); 7585 scoped_ptr<LayerImpl> root = LayerImpl::Create(host_impl.active_tree(), 1); 7586 scoped_ptr<LayerImpl> scroll_parent_border = 7587 LayerImpl::Create(host_impl.active_tree(), 2); 7588 scoped_ptr<LayerImpl> scroll_parent_clip = 7589 LayerImpl::Create(host_impl.active_tree(), 3); 7590 scoped_ptr<LayerImpl> scroll_parent = 7591 LayerImpl::Create(host_impl.active_tree(), 4); 7592 scoped_ptr<LayerImpl> scroll_child = 7593 LayerImpl::Create(host_impl.active_tree(), 5); 7594 scoped_ptr<LayerImpl> bottom_content = 7595 LayerImpl::Create(host_impl.active_tree(), 6); 7596 scoped_ptr<LayerImpl> top_content = 7597 LayerImpl::Create(host_impl.active_tree(), 7); 7598 7599 scroll_parent_clip->SetMasksToBounds(true); 7600 7601 scroll_child->SetScrollParent(scroll_parent.get()); 7602 scoped_ptr<std::set<LayerImpl*> > scroll_children(new std::set<LayerImpl*>); 7603 scroll_children->insert(scroll_child.get()); 7604 scroll_parent->SetScrollChildren(scroll_children.release()); 7605 7606 scroll_child->SetDrawsContent(true); 7607 scroll_parent->SetDrawsContent(true); 7608 top_content->SetDrawsContent(true); 7609 bottom_content->SetDrawsContent(true); 7610 7611 gfx::Transform identity_transform; 7612 gfx::Transform top_transform; 7613 top_transform.Translate3d(0.0, 0.0, 5.0); 7614 gfx::Transform bottom_transform; 7615 bottom_transform.Translate3d(0.0, 0.0, 3.0); 7616 7617 SetLayerPropertiesForTesting(root.get(), 7618 identity_transform, 7619 gfx::Point3F(), 7620 gfx::PointF(), 7621 gfx::Size(50, 50), 7622 true, 7623 false); 7624 SetLayerPropertiesForTesting(scroll_parent_border.get(), 7625 identity_transform, 7626 gfx::Point3F(), 7627 gfx::PointF(), 7628 gfx::Size(40, 40), 7629 true, 7630 false); 7631 SetLayerPropertiesForTesting(scroll_parent_clip.get(), 7632 identity_transform, 7633 gfx::Point3F(), 7634 gfx::PointF(), 7635 gfx::Size(30, 30), 7636 true, 7637 false); 7638 SetLayerPropertiesForTesting(scroll_parent.get(), 7639 identity_transform, 7640 gfx::Point3F(), 7641 gfx::PointF(), 7642 gfx::Size(50, 50), 7643 true, 7644 false); 7645 SetLayerPropertiesForTesting(scroll_child.get(), 7646 identity_transform, 7647 gfx::Point3F(), 7648 gfx::PointF(), 7649 gfx::Size(50, 50), 7650 true, 7651 false); 7652 SetLayerPropertiesForTesting(top_content.get(), 7653 top_transform, 7654 gfx::Point3F(), 7655 gfx::PointF(), 7656 gfx::Size(50, 50), 7657 false, 7658 true); 7659 SetLayerPropertiesForTesting(bottom_content.get(), 7660 bottom_transform, 7661 gfx::Point3F(), 7662 gfx::PointF(), 7663 gfx::Size(50, 50), 7664 false, 7665 true); 7666 7667 scroll_child->SetShouldFlattenTransform(false); 7668 scroll_child->Set3dSortingContextId(1); 7669 7670 scroll_child->AddChild(top_content.Pass()); 7671 scroll_child->AddChild(bottom_content.Pass()); 7672 root->AddChild(scroll_child.Pass()); 7673 7674 scroll_parent_clip->AddChild(scroll_parent.Pass()); 7675 scroll_parent_border->AddChild(scroll_parent_clip.Pass()); 7676 root->AddChild(scroll_parent_border.Pass()); 7677 7678 LayerImplList render_surface_layer_list; 7679 LayerTreeHostCommon::CalcDrawPropsImplInputsForTesting inputs( 7680 root.get(), root->bounds(), &render_surface_layer_list); 7681 7682 LayerTreeHostCommon::CalculateDrawProperties(&inputs); 7683 7684 EXPECT_TRUE(root->render_surface()); 7685 7686 // If we don't sort by depth and let the layers get added in the order they 7687 // would normally be visited in, then layers 6 and 7 will be out of order. In 7688 // other words, although we've had to shift 5, 6, and 7 to appear before 4 7689 // in the list (because of the scroll parent relationship), this should not 7690 // have an effect on the the order of 5, 6, and 7 (which had been reordered 7691 // due to layer sorting). 7692 EXPECT_EQ(4u, root->render_surface()->layer_list().size()); 7693 EXPECT_EQ(5, root->render_surface()->layer_list().at(0)->id()); 7694 EXPECT_EQ(6, root->render_surface()->layer_list().at(1)->id()); 7695 EXPECT_EQ(7, root->render_surface()->layer_list().at(2)->id()); 7696 EXPECT_EQ(4, root->render_surface()->layer_list().at(3)->id()); 7697 } 7698 7699 TEST_F(LayerTreeHostCommonTest, ScrollCompensationWithRounding) { 7700 // This test verifies that a scrolling layer that gets snapped to 7701 // integer coordinates doesn't move a fixed position child. 7702 // 7703 // + root 7704 // + container 7705 // + scroller 7706 // + fixed 7707 // 7708 FakeImplProxy proxy; 7709 TestSharedBitmapManager shared_bitmap_manager; 7710 FakeLayerTreeHostImpl host_impl(&proxy, &shared_bitmap_manager); 7711 host_impl.CreatePendingTree(); 7712 scoped_ptr<LayerImpl> root = LayerImpl::Create(host_impl.active_tree(), 1); 7713 scoped_ptr<LayerImpl> container = 7714 LayerImpl::Create(host_impl.active_tree(), 2); 7715 LayerImpl* container_layer = container.get(); 7716 scoped_ptr<LayerImpl> scroller = 7717 LayerImpl::Create(host_impl.active_tree(), 3); 7718 LayerImpl* scroll_layer = scroller.get(); 7719 scoped_ptr<LayerImpl> fixed = LayerImpl::Create(host_impl.active_tree(), 4); 7720 LayerImpl* fixed_layer = fixed.get(); 7721 7722 container->SetIsContainerForFixedPositionLayers(true); 7723 7724 LayerPositionConstraint constraint; 7725 constraint.set_is_fixed_position(true); 7726 fixed->SetPositionConstraint(constraint); 7727 7728 scroller->SetScrollClipLayer(container->id()); 7729 7730 gfx::Transform identity_transform; 7731 gfx::Transform container_transform; 7732 container_transform.Translate3d(10.0, 20.0, 0.0); 7733 gfx::Vector2dF container_offset = container_transform.To2dTranslation(); 7734 7735 SetLayerPropertiesForTesting(root.get(), 7736 identity_transform, 7737 gfx::Point3F(), 7738 gfx::PointF(), 7739 gfx::Size(50, 50), 7740 true, 7741 false); 7742 SetLayerPropertiesForTesting(container.get(), 7743 container_transform, 7744 gfx::Point3F(), 7745 gfx::PointF(), 7746 gfx::Size(40, 40), 7747 true, 7748 false); 7749 SetLayerPropertiesForTesting(scroller.get(), 7750 identity_transform, 7751 gfx::Point3F(), 7752 gfx::PointF(), 7753 gfx::Size(30, 30), 7754 true, 7755 false); 7756 SetLayerPropertiesForTesting(fixed.get(), 7757 identity_transform, 7758 gfx::Point3F(), 7759 gfx::PointF(), 7760 gfx::Size(50, 50), 7761 true, 7762 false); 7763 7764 scroller->AddChild(fixed.Pass()); 7765 container->AddChild(scroller.Pass()); 7766 root->AddChild(container.Pass()); 7767 7768 // Rounded to integers already. 7769 { 7770 gfx::Vector2dF scroll_delta(3.0, 5.0); 7771 scroll_layer->SetScrollDelta(scroll_delta); 7772 7773 LayerImplList render_surface_layer_list; 7774 LayerTreeHostCommon::CalcDrawPropsImplInputsForTesting inputs( 7775 root.get(), root->bounds(), &render_surface_layer_list); 7776 LayerTreeHostCommon::CalculateDrawProperties(&inputs); 7777 7778 EXPECT_TRANSFORMATION_MATRIX_EQ( 7779 container_layer->draw_properties().screen_space_transform, 7780 fixed_layer->draw_properties().screen_space_transform); 7781 EXPECT_VECTOR_EQ( 7782 fixed_layer->draw_properties().screen_space_transform.To2dTranslation(), 7783 container_offset); 7784 EXPECT_VECTOR_EQ(scroll_layer->draw_properties() 7785 .screen_space_transform.To2dTranslation(), 7786 container_offset - scroll_delta); 7787 } 7788 7789 // Scroll delta requiring rounding. 7790 { 7791 gfx::Vector2dF scroll_delta(4.1f, 8.1f); 7792 scroll_layer->SetScrollDelta(scroll_delta); 7793 7794 gfx::Vector2dF rounded_scroll_delta(4.f, 8.f); 7795 7796 LayerImplList render_surface_layer_list; 7797 LayerTreeHostCommon::CalcDrawPropsImplInputsForTesting inputs( 7798 root.get(), root->bounds(), &render_surface_layer_list); 7799 LayerTreeHostCommon::CalculateDrawProperties(&inputs); 7800 7801 EXPECT_TRANSFORMATION_MATRIX_EQ( 7802 container_layer->draw_properties().screen_space_transform, 7803 fixed_layer->draw_properties().screen_space_transform); 7804 EXPECT_VECTOR_EQ( 7805 fixed_layer->draw_properties().screen_space_transform.To2dTranslation(), 7806 container_offset); 7807 EXPECT_VECTOR_EQ(scroll_layer->draw_properties() 7808 .screen_space_transform.To2dTranslation(), 7809 container_offset - rounded_scroll_delta); 7810 } 7811 7812 // Scale is applied earlier in the tree. 7813 { 7814 gfx::Transform scaled_container_transform = container_transform; 7815 scaled_container_transform.Scale3d(3.0, 3.0, 1.0); 7816 container_layer->SetTransform(scaled_container_transform); 7817 7818 gfx::Vector2dF scroll_delta(4.5f, 8.5f); 7819 scroll_layer->SetScrollDelta(scroll_delta); 7820 7821 LayerImplList render_surface_layer_list; 7822 LayerTreeHostCommon::CalcDrawPropsImplInputsForTesting inputs( 7823 root.get(), root->bounds(), &render_surface_layer_list); 7824 LayerTreeHostCommon::CalculateDrawProperties(&inputs); 7825 7826 EXPECT_TRANSFORMATION_MATRIX_EQ( 7827 container_layer->draw_properties().screen_space_transform, 7828 fixed_layer->draw_properties().screen_space_transform); 7829 EXPECT_VECTOR_EQ( 7830 fixed_layer->draw_properties().screen_space_transform.To2dTranslation(), 7831 container_offset); 7832 7833 container_layer->SetTransform(container_transform); 7834 } 7835 7836 // Scale is applied on the scroll layer itself. 7837 { 7838 gfx::Transform scale_transform; 7839 scale_transform.Scale3d(3.0, 3.0, 1.0); 7840 scroll_layer->SetTransform(scale_transform); 7841 7842 gfx::Vector2dF scroll_delta(4.5f, 8.5f); 7843 scroll_layer->SetScrollDelta(scroll_delta); 7844 7845 LayerImplList render_surface_layer_list; 7846 LayerTreeHostCommon::CalcDrawPropsImplInputsForTesting inputs( 7847 root.get(), root->bounds(), &render_surface_layer_list); 7848 LayerTreeHostCommon::CalculateDrawProperties(&inputs); 7849 7850 EXPECT_VECTOR_EQ( 7851 fixed_layer->draw_properties().screen_space_transform.To2dTranslation(), 7852 container_offset); 7853 7854 scroll_layer->SetTransform(identity_transform); 7855 } 7856 } 7857 7858 class AnimationScaleFactorTrackingLayerImpl : public LayerImpl { 7859 public: 7860 static scoped_ptr<AnimationScaleFactorTrackingLayerImpl> Create( 7861 LayerTreeImpl* tree_impl, 7862 int id) { 7863 return make_scoped_ptr( 7864 new AnimationScaleFactorTrackingLayerImpl(tree_impl, id)); 7865 } 7866 7867 virtual ~AnimationScaleFactorTrackingLayerImpl() {} 7868 7869 private: 7870 explicit AnimationScaleFactorTrackingLayerImpl(LayerTreeImpl* tree_impl, 7871 int id) 7872 : LayerImpl(tree_impl, id) { 7873 SetDrawsContent(true); 7874 } 7875 }; 7876 7877 TEST_F(LayerTreeHostCommonTest, MaximumAnimationScaleFactor) { 7878 FakeImplProxy proxy; 7879 TestSharedBitmapManager shared_bitmap_manager; 7880 FakeLayerTreeHostImpl host_impl(&proxy, &shared_bitmap_manager); 7881 gfx::Transform identity_matrix; 7882 scoped_ptr<AnimationScaleFactorTrackingLayerImpl> grand_parent = 7883 AnimationScaleFactorTrackingLayerImpl::Create(host_impl.active_tree(), 1); 7884 scoped_ptr<AnimationScaleFactorTrackingLayerImpl> parent = 7885 AnimationScaleFactorTrackingLayerImpl::Create(host_impl.active_tree(), 2); 7886 scoped_ptr<AnimationScaleFactorTrackingLayerImpl> child = 7887 AnimationScaleFactorTrackingLayerImpl::Create(host_impl.active_tree(), 3); 7888 scoped_ptr<AnimationScaleFactorTrackingLayerImpl> grand_child = 7889 AnimationScaleFactorTrackingLayerImpl::Create(host_impl.active_tree(), 4); 7890 7891 AnimationScaleFactorTrackingLayerImpl* parent_raw = parent.get(); 7892 AnimationScaleFactorTrackingLayerImpl* child_raw = child.get(); 7893 AnimationScaleFactorTrackingLayerImpl* grand_child_raw = grand_child.get(); 7894 7895 child->AddChild(grand_child.PassAs<LayerImpl>()); 7896 parent->AddChild(child.PassAs<LayerImpl>()); 7897 grand_parent->AddChild(parent.PassAs<LayerImpl>()); 7898 7899 SetLayerPropertiesForTesting(grand_parent.get(), 7900 identity_matrix, 7901 gfx::Point3F(), 7902 gfx::PointF(), 7903 gfx::Size(1, 2), 7904 true, 7905 false); 7906 SetLayerPropertiesForTesting(parent_raw, 7907 identity_matrix, 7908 gfx::Point3F(), 7909 gfx::PointF(), 7910 gfx::Size(1, 2), 7911 true, 7912 false); 7913 SetLayerPropertiesForTesting(child_raw, 7914 identity_matrix, 7915 gfx::Point3F(), 7916 gfx::PointF(), 7917 gfx::Size(1, 2), 7918 true, 7919 false); 7920 SetLayerPropertiesForTesting(grand_child_raw, 7921 identity_matrix, 7922 gfx::Point3F(), 7923 gfx::PointF(), 7924 gfx::Size(1, 2), 7925 true, 7926 false); 7927 7928 ExecuteCalculateDrawProperties(grand_parent.get()); 7929 7930 // No layers have animations. 7931 EXPECT_EQ(0.f, 7932 grand_parent->draw_properties().maximum_animation_contents_scale); 7933 EXPECT_EQ(0.f, 7934 parent_raw->draw_properties().maximum_animation_contents_scale); 7935 EXPECT_EQ(0.f, child_raw->draw_properties().maximum_animation_contents_scale); 7936 EXPECT_EQ( 7937 0.f, grand_child_raw->draw_properties().maximum_animation_contents_scale); 7938 7939 TransformOperations translation; 7940 translation.AppendTranslate(1.f, 2.f, 3.f); 7941 7942 AddAnimatedTransformToLayer( 7943 parent_raw, 1.0, TransformOperations(), translation); 7944 7945 // No layers have scale-affecting animations. 7946 EXPECT_EQ(0.f, 7947 grand_parent->draw_properties().maximum_animation_contents_scale); 7948 EXPECT_EQ(0.f, 7949 parent_raw->draw_properties().maximum_animation_contents_scale); 7950 EXPECT_EQ(0.f, child_raw->draw_properties().maximum_animation_contents_scale); 7951 EXPECT_EQ( 7952 0.f, grand_child_raw->draw_properties().maximum_animation_contents_scale); 7953 7954 TransformOperations scale; 7955 scale.AppendScale(5.f, 4.f, 3.f); 7956 7957 AddAnimatedTransformToLayer(child_raw, 1.0, TransformOperations(), scale); 7958 ExecuteCalculateDrawProperties(grand_parent.get()); 7959 7960 // Only |child| has a scale-affecting animation. 7961 EXPECT_EQ(0.f, 7962 grand_parent->draw_properties().maximum_animation_contents_scale); 7963 EXPECT_EQ(0.f, 7964 parent_raw->draw_properties().maximum_animation_contents_scale); 7965 EXPECT_EQ(5.f, child_raw->draw_properties().maximum_animation_contents_scale); 7966 EXPECT_EQ( 7967 5.f, grand_child_raw->draw_properties().maximum_animation_contents_scale); 7968 7969 AddAnimatedTransformToLayer( 7970 grand_parent.get(), 1.0, TransformOperations(), scale); 7971 ExecuteCalculateDrawProperties(grand_parent.get()); 7972 7973 // |grand_parent| and |child| have scale-affecting animations. 7974 EXPECT_EQ(5.f, 7975 grand_parent->draw_properties().maximum_animation_contents_scale); 7976 EXPECT_EQ(5.f, 7977 parent_raw->draw_properties().maximum_animation_contents_scale); 7978 // We don't support combining animated scales from two nodes; 0.f means 7979 // that the maximum scale could not be computed. 7980 EXPECT_EQ(0.f, child_raw->draw_properties().maximum_animation_contents_scale); 7981 EXPECT_EQ( 7982 0.f, grand_child_raw->draw_properties().maximum_animation_contents_scale); 7983 7984 AddAnimatedTransformToLayer(parent_raw, 1.0, TransformOperations(), scale); 7985 ExecuteCalculateDrawProperties(grand_parent.get()); 7986 7987 // |grand_parent|, |parent|, and |child| have scale-affecting animations. 7988 EXPECT_EQ(5.f, 7989 grand_parent->draw_properties().maximum_animation_contents_scale); 7990 EXPECT_EQ(0.f, 7991 parent_raw->draw_properties().maximum_animation_contents_scale); 7992 EXPECT_EQ(0.f, child_raw->draw_properties().maximum_animation_contents_scale); 7993 EXPECT_EQ( 7994 0.f, grand_child_raw->draw_properties().maximum_animation_contents_scale); 7995 7996 grand_parent->layer_animation_controller()->AbortAnimations( 7997 Animation::Transform); 7998 parent_raw->layer_animation_controller()->AbortAnimations( 7999 Animation::Transform); 8000 child_raw->layer_animation_controller()->AbortAnimations( 8001 Animation::Transform); 8002 8003 TransformOperations perspective; 8004 perspective.AppendPerspective(10.f); 8005 8006 AddAnimatedTransformToLayer( 8007 child_raw, 1.0, TransformOperations(), perspective); 8008 ExecuteCalculateDrawProperties(grand_parent.get()); 8009 8010 // |child| has a scale-affecting animation but computing the maximum of this 8011 // animation is not supported. 8012 EXPECT_EQ(0.f, 8013 grand_parent->draw_properties().maximum_animation_contents_scale); 8014 EXPECT_EQ(0.f, 8015 parent_raw->draw_properties().maximum_animation_contents_scale); 8016 EXPECT_EQ(0.f, child_raw->draw_properties().maximum_animation_contents_scale); 8017 EXPECT_EQ( 8018 0.f, grand_child_raw->draw_properties().maximum_animation_contents_scale); 8019 8020 child_raw->layer_animation_controller()->AbortAnimations( 8021 Animation::Transform); 8022 8023 gfx::Transform scale_matrix; 8024 scale_matrix.Scale(1.f, 2.f); 8025 grand_parent->SetTransform(scale_matrix); 8026 parent_raw->SetTransform(scale_matrix); 8027 AddAnimatedTransformToLayer(parent_raw, 1.0, TransformOperations(), scale); 8028 ExecuteCalculateDrawProperties(grand_parent.get()); 8029 8030 // |grand_parent| and |parent| each have scale 2.f. |parent| has a scale 8031 // animation with maximum scale 5.f. 8032 EXPECT_EQ(0.f, 8033 grand_parent->draw_properties().maximum_animation_contents_scale); 8034 EXPECT_EQ(10.f, 8035 parent_raw->draw_properties().maximum_animation_contents_scale); 8036 EXPECT_EQ(10.f, 8037 child_raw->draw_properties().maximum_animation_contents_scale); 8038 EXPECT_EQ( 8039 10.f, 8040 grand_child_raw->draw_properties().maximum_animation_contents_scale); 8041 8042 gfx::Transform perspective_matrix; 8043 perspective_matrix.ApplyPerspectiveDepth(2.f); 8044 child_raw->SetTransform(perspective_matrix); 8045 ExecuteCalculateDrawProperties(grand_parent.get()); 8046 8047 // |child| has a transform that's neither a translation nor a scale. 8048 EXPECT_EQ(0.f, 8049 grand_parent->draw_properties().maximum_animation_contents_scale); 8050 EXPECT_EQ(10.f, 8051 parent_raw->draw_properties().maximum_animation_contents_scale); 8052 EXPECT_EQ(0.f, child_raw->draw_properties().maximum_animation_contents_scale); 8053 EXPECT_EQ( 8054 0.f, grand_child_raw->draw_properties().maximum_animation_contents_scale); 8055 8056 parent_raw->SetTransform(perspective_matrix); 8057 ExecuteCalculateDrawProperties(grand_parent.get()); 8058 8059 // |parent| and |child| have transforms that are neither translations nor 8060 // scales. 8061 EXPECT_EQ(0.f, 8062 grand_parent->draw_properties().maximum_animation_contents_scale); 8063 EXPECT_EQ(0.f, 8064 parent_raw->draw_properties().maximum_animation_contents_scale); 8065 EXPECT_EQ(0.f, child_raw->draw_properties().maximum_animation_contents_scale); 8066 EXPECT_EQ( 8067 0.f, grand_child_raw->draw_properties().maximum_animation_contents_scale); 8068 8069 parent_raw->SetTransform(identity_matrix); 8070 child_raw->SetTransform(identity_matrix); 8071 grand_parent->SetTransform(perspective_matrix); 8072 8073 ExecuteCalculateDrawProperties(grand_parent.get()); 8074 8075 // |grand_parent| has a transform that's neither a translation nor a scale. 8076 EXPECT_EQ(0.f, 8077 grand_parent->draw_properties().maximum_animation_contents_scale); 8078 EXPECT_EQ(0.f, 8079 parent_raw->draw_properties().maximum_animation_contents_scale); 8080 EXPECT_EQ(0.f, child_raw->draw_properties().maximum_animation_contents_scale); 8081 EXPECT_EQ( 8082 0.f, grand_child_raw->draw_properties().maximum_animation_contents_scale); 8083 } 8084 8085 static int membership_id(LayerImpl* layer) { 8086 return layer->draw_properties().last_drawn_render_surface_layer_list_id; 8087 } 8088 8089 static void GatherDrawnLayers(LayerImplList* rsll, 8090 std::set<LayerImpl*>* drawn_layers) { 8091 for (LayerIterator<LayerImpl> it = LayerIterator<LayerImpl>::Begin(rsll), 8092 end = LayerIterator<LayerImpl>::End(rsll); 8093 it != end; 8094 ++it) { 8095 LayerImpl* layer = *it; 8096 if (it.represents_itself()) 8097 drawn_layers->insert(layer); 8098 8099 if (!it.represents_contributing_render_surface()) 8100 continue; 8101 8102 if (layer->mask_layer()) 8103 drawn_layers->insert(layer->mask_layer()); 8104 if (layer->replica_layer() && layer->replica_layer()->mask_layer()) 8105 drawn_layers->insert(layer->replica_layer()->mask_layer()); 8106 } 8107 } 8108 8109 TEST_F(LayerTreeHostCommonTest, RenderSurfaceLayerListMembership) { 8110 FakeImplProxy proxy; 8111 TestSharedBitmapManager shared_bitmap_manager; 8112 FakeLayerTreeHostImpl host_impl(&proxy, &shared_bitmap_manager); 8113 gfx::Transform identity_matrix; 8114 8115 scoped_ptr<LayerImpl> grand_parent = 8116 LayerImpl::Create(host_impl.active_tree(), 1); 8117 scoped_ptr<LayerImpl> parent = LayerImpl::Create(host_impl.active_tree(), 3); 8118 scoped_ptr<LayerImpl> child = LayerImpl::Create(host_impl.active_tree(), 5); 8119 scoped_ptr<LayerImpl> grand_child1 = 8120 LayerImpl::Create(host_impl.active_tree(), 7); 8121 scoped_ptr<LayerImpl> grand_child2 = 8122 LayerImpl::Create(host_impl.active_tree(), 9); 8123 8124 LayerImpl* grand_parent_raw = grand_parent.get(); 8125 LayerImpl* parent_raw = parent.get(); 8126 LayerImpl* child_raw = child.get(); 8127 LayerImpl* grand_child1_raw = grand_child1.get(); 8128 LayerImpl* grand_child2_raw = grand_child2.get(); 8129 8130 child->AddChild(grand_child1.Pass()); 8131 child->AddChild(grand_child2.Pass()); 8132 parent->AddChild(child.Pass()); 8133 grand_parent->AddChild(parent.Pass()); 8134 8135 SetLayerPropertiesForTesting(grand_parent_raw, 8136 identity_matrix, 8137 gfx::Point3F(), 8138 gfx::PointF(), 8139 gfx::Size(1, 2), 8140 true, 8141 false); 8142 SetLayerPropertiesForTesting(parent_raw, 8143 identity_matrix, 8144 gfx::Point3F(), 8145 gfx::PointF(), 8146 gfx::Size(1, 2), 8147 true, 8148 false); 8149 SetLayerPropertiesForTesting(child_raw, 8150 identity_matrix, 8151 gfx::Point3F(), 8152 gfx::PointF(), 8153 gfx::Size(1, 2), 8154 true, 8155 false); 8156 SetLayerPropertiesForTesting(grand_child1_raw, 8157 identity_matrix, 8158 gfx::Point3F(), 8159 gfx::PointF(), 8160 gfx::Size(1, 2), 8161 true, 8162 false); 8163 SetLayerPropertiesForTesting(grand_child2_raw, 8164 identity_matrix, 8165 gfx::Point3F(), 8166 gfx::PointF(), 8167 gfx::Size(1, 2), 8168 true, 8169 false); 8170 8171 // Start with nothing being drawn. 8172 ExecuteCalculateDrawProperties(grand_parent_raw); 8173 int member_id = render_surface_layer_list_count(); 8174 8175 EXPECT_NE(member_id, membership_id(grand_parent_raw)); 8176 EXPECT_NE(member_id, membership_id(parent_raw)); 8177 EXPECT_NE(member_id, membership_id(child_raw)); 8178 EXPECT_NE(member_id, membership_id(grand_child1_raw)); 8179 EXPECT_NE(member_id, membership_id(grand_child2_raw)); 8180 8181 std::set<LayerImpl*> expected; 8182 std::set<LayerImpl*> actual; 8183 GatherDrawnLayers(render_surface_layer_list_impl(), &actual); 8184 EXPECT_EQ(expected, actual); 8185 8186 // If we force render surface, but none of the layers are in the layer list, 8187 // then this layer should not appear in RSLL. 8188 grand_child1_raw->SetForceRenderSurface(true); 8189 8190 ExecuteCalculateDrawProperties(grand_parent_raw); 8191 member_id = render_surface_layer_list_count(); 8192 8193 EXPECT_NE(member_id, membership_id(grand_parent_raw)); 8194 EXPECT_NE(member_id, membership_id(parent_raw)); 8195 EXPECT_NE(member_id, membership_id(child_raw)); 8196 EXPECT_NE(member_id, membership_id(grand_child1_raw)); 8197 EXPECT_NE(member_id, membership_id(grand_child2_raw)); 8198 8199 expected.clear(); 8200 actual.clear(); 8201 GatherDrawnLayers(render_surface_layer_list_impl(), &actual); 8202 EXPECT_EQ(expected, actual); 8203 8204 // However, if we say that this layer also draws content, it will appear in 8205 // RSLL. 8206 grand_child1_raw->SetDrawsContent(true); 8207 8208 ExecuteCalculateDrawProperties(grand_parent_raw); 8209 member_id = render_surface_layer_list_count(); 8210 8211 EXPECT_NE(member_id, membership_id(grand_parent_raw)); 8212 EXPECT_NE(member_id, membership_id(parent_raw)); 8213 EXPECT_NE(member_id, membership_id(child_raw)); 8214 EXPECT_EQ(member_id, membership_id(grand_child1_raw)); 8215 EXPECT_NE(member_id, membership_id(grand_child2_raw)); 8216 8217 expected.clear(); 8218 expected.insert(grand_child1_raw); 8219 8220 actual.clear(); 8221 GatherDrawnLayers(render_surface_layer_list_impl(), &actual); 8222 EXPECT_EQ(expected, actual); 8223 8224 // Now child is forced to have a render surface, and one if its children draws 8225 // content. 8226 grand_child1_raw->SetDrawsContent(false); 8227 grand_child1_raw->SetForceRenderSurface(false); 8228 child_raw->SetForceRenderSurface(true); 8229 grand_child2_raw->SetDrawsContent(true); 8230 8231 ExecuteCalculateDrawProperties(grand_parent_raw); 8232 member_id = render_surface_layer_list_count(); 8233 8234 EXPECT_NE(member_id, membership_id(grand_parent_raw)); 8235 EXPECT_NE(member_id, membership_id(parent_raw)); 8236 EXPECT_NE(member_id, membership_id(child_raw)); 8237 EXPECT_NE(member_id, membership_id(grand_child1_raw)); 8238 EXPECT_EQ(member_id, membership_id(grand_child2_raw)); 8239 8240 expected.clear(); 8241 expected.insert(grand_child2_raw); 8242 8243 actual.clear(); 8244 GatherDrawnLayers(render_surface_layer_list_impl(), &actual); 8245 EXPECT_EQ(expected, actual); 8246 8247 // Add a mask layer to child. 8248 child_raw->SetMaskLayer(LayerImpl::Create(host_impl.active_tree(), 6).Pass()); 8249 8250 ExecuteCalculateDrawProperties(grand_parent_raw); 8251 member_id = render_surface_layer_list_count(); 8252 8253 EXPECT_NE(member_id, membership_id(grand_parent_raw)); 8254 EXPECT_NE(member_id, membership_id(parent_raw)); 8255 EXPECT_NE(member_id, membership_id(child_raw)); 8256 EXPECT_EQ(member_id, membership_id(child_raw->mask_layer())); 8257 EXPECT_NE(member_id, membership_id(grand_child1_raw)); 8258 EXPECT_EQ(member_id, membership_id(grand_child2_raw)); 8259 8260 expected.clear(); 8261 expected.insert(grand_child2_raw); 8262 expected.insert(child_raw->mask_layer()); 8263 8264 expected.clear(); 8265 expected.insert(grand_child2_raw); 8266 expected.insert(child_raw->mask_layer()); 8267 8268 actual.clear(); 8269 GatherDrawnLayers(render_surface_layer_list_impl(), &actual); 8270 EXPECT_EQ(expected, actual); 8271 8272 // Add replica mask layer. 8273 scoped_ptr<LayerImpl> replica_layer = 8274 LayerImpl::Create(host_impl.active_tree(), 20); 8275 replica_layer->SetMaskLayer(LayerImpl::Create(host_impl.active_tree(), 21)); 8276 child_raw->SetReplicaLayer(replica_layer.Pass()); 8277 8278 ExecuteCalculateDrawProperties(grand_parent_raw); 8279 member_id = render_surface_layer_list_count(); 8280 8281 EXPECT_NE(member_id, membership_id(grand_parent_raw)); 8282 EXPECT_NE(member_id, membership_id(parent_raw)); 8283 EXPECT_NE(member_id, membership_id(child_raw)); 8284 EXPECT_EQ(member_id, membership_id(child_raw->mask_layer())); 8285 EXPECT_EQ(member_id, membership_id(child_raw->replica_layer()->mask_layer())); 8286 EXPECT_NE(member_id, membership_id(grand_child1_raw)); 8287 EXPECT_EQ(member_id, membership_id(grand_child2_raw)); 8288 8289 expected.clear(); 8290 expected.insert(grand_child2_raw); 8291 expected.insert(child_raw->mask_layer()); 8292 expected.insert(child_raw->replica_layer()->mask_layer()); 8293 8294 actual.clear(); 8295 GatherDrawnLayers(render_surface_layer_list_impl(), &actual); 8296 EXPECT_EQ(expected, actual); 8297 8298 child_raw->TakeReplicaLayer(); 8299 8300 // With nothing drawing, we should have no layers. 8301 grand_child2_raw->SetDrawsContent(false); 8302 8303 ExecuteCalculateDrawProperties(grand_parent_raw); 8304 member_id = render_surface_layer_list_count(); 8305 8306 EXPECT_NE(member_id, membership_id(grand_parent_raw)); 8307 EXPECT_NE(member_id, membership_id(parent_raw)); 8308 EXPECT_NE(member_id, membership_id(child_raw)); 8309 EXPECT_NE(member_id, membership_id(child_raw->mask_layer())); 8310 EXPECT_NE(member_id, membership_id(grand_child1_raw)); 8311 EXPECT_NE(member_id, membership_id(grand_child2_raw)); 8312 8313 expected.clear(); 8314 actual.clear(); 8315 GatherDrawnLayers(render_surface_layer_list_impl(), &actual); 8316 EXPECT_EQ(expected, actual); 8317 8318 // Child itself draws means that we should have the child and the mask in the 8319 // list. 8320 child_raw->SetDrawsContent(true); 8321 8322 ExecuteCalculateDrawProperties(grand_parent_raw); 8323 member_id = render_surface_layer_list_count(); 8324 8325 EXPECT_NE(member_id, membership_id(grand_parent_raw)); 8326 EXPECT_NE(member_id, membership_id(parent_raw)); 8327 EXPECT_EQ(member_id, membership_id(child_raw)); 8328 EXPECT_EQ(member_id, membership_id(child_raw->mask_layer())); 8329 EXPECT_NE(member_id, membership_id(grand_child1_raw)); 8330 EXPECT_NE(member_id, membership_id(grand_child2_raw)); 8331 8332 expected.clear(); 8333 expected.insert(child_raw); 8334 expected.insert(child_raw->mask_layer()); 8335 actual.clear(); 8336 GatherDrawnLayers(render_surface_layer_list_impl(), &actual); 8337 EXPECT_EQ(expected, actual); 8338 8339 child_raw->TakeMaskLayer(); 8340 8341 // Now everyone's a member! 8342 grand_parent_raw->SetDrawsContent(true); 8343 parent_raw->SetDrawsContent(true); 8344 child_raw->SetDrawsContent(true); 8345 grand_child1_raw->SetDrawsContent(true); 8346 grand_child2_raw->SetDrawsContent(true); 8347 8348 ExecuteCalculateDrawProperties(grand_parent_raw); 8349 member_id = render_surface_layer_list_count(); 8350 8351 EXPECT_EQ(member_id, membership_id(grand_parent_raw)); 8352 EXPECT_EQ(member_id, membership_id(parent_raw)); 8353 EXPECT_EQ(member_id, membership_id(child_raw)); 8354 EXPECT_EQ(member_id, membership_id(grand_child1_raw)); 8355 EXPECT_EQ(member_id, membership_id(grand_child2_raw)); 8356 8357 expected.clear(); 8358 expected.insert(grand_parent_raw); 8359 expected.insert(parent_raw); 8360 expected.insert(child_raw); 8361 expected.insert(grand_child1_raw); 8362 expected.insert(grand_child2_raw); 8363 8364 actual.clear(); 8365 GatherDrawnLayers(render_surface_layer_list_impl(), &actual); 8366 EXPECT_EQ(expected, actual); 8367 } 8368 8369 TEST_F(LayerTreeHostCommonTest, DrawPropertyScales) { 8370 FakeImplProxy proxy; 8371 TestSharedBitmapManager shared_bitmap_manager; 8372 FakeLayerTreeHostImpl host_impl(&proxy, &shared_bitmap_manager); 8373 8374 scoped_ptr<LayerImpl> root = LayerImpl::Create(host_impl.active_tree(), 1); 8375 LayerImpl* root_layer = root.get(); 8376 scoped_ptr<LayerImpl> child1 = LayerImpl::Create(host_impl.active_tree(), 2); 8377 LayerImpl* child1_layer = child1.get(); 8378 scoped_ptr<LayerImpl> child2 = LayerImpl::Create(host_impl.active_tree(), 3); 8379 LayerImpl* child2_layer = child2.get(); 8380 8381 root->AddChild(child1.Pass()); 8382 root->AddChild(child2.Pass()); 8383 8384 gfx::Transform identity_matrix, scale_transform_child1, 8385 scale_transform_child2; 8386 scale_transform_child1.Scale(2, 3); 8387 scale_transform_child2.Scale(4, 5); 8388 8389 SetLayerPropertiesForTesting(root_layer, 8390 identity_matrix, 8391 gfx::Point3F(), 8392 gfx::PointF(), 8393 gfx::Size(1, 1), 8394 true, 8395 false); 8396 SetLayerPropertiesForTesting(child1_layer, 8397 scale_transform_child1, 8398 gfx::Point3F(), 8399 gfx::PointF(), 8400 gfx::Size(), 8401 true, 8402 false); 8403 8404 child1_layer->SetMaskLayer( 8405 LayerImpl::Create(host_impl.active_tree(), 4).Pass()); 8406 8407 scoped_ptr<LayerImpl> replica_layer = 8408 LayerImpl::Create(host_impl.active_tree(), 5); 8409 replica_layer->SetMaskLayer(LayerImpl::Create(host_impl.active_tree(), 6)); 8410 child1_layer->SetReplicaLayer(replica_layer.Pass()); 8411 8412 ExecuteCalculateDrawProperties(root_layer); 8413 8414 TransformOperations scale; 8415 scale.AppendScale(5.f, 8.f, 3.f); 8416 8417 AddAnimatedTransformToLayer(child2_layer, 1.0, TransformOperations(), scale); 8418 SetLayerPropertiesForTesting(child2_layer, 8419 scale_transform_child2, 8420 gfx::Point3F(), 8421 gfx::PointF(), 8422 gfx::Size(), 8423 true, 8424 false); 8425 8426 ExecuteCalculateDrawProperties(root_layer); 8427 8428 EXPECT_FLOAT_EQ(1.f, root_layer->draw_properties().ideal_contents_scale); 8429 EXPECT_FLOAT_EQ(3.f, child1_layer->draw_properties().ideal_contents_scale); 8430 EXPECT_FLOAT_EQ( 8431 3.f, child1_layer->mask_layer()->draw_properties().ideal_contents_scale); 8432 EXPECT_FLOAT_EQ(3.f, 8433 child1_layer->replica_layer() 8434 ->mask_layer() 8435 ->draw_properties() 8436 .ideal_contents_scale); 8437 EXPECT_FLOAT_EQ(5.f, child2_layer->draw_properties().ideal_contents_scale); 8438 8439 EXPECT_FLOAT_EQ( 8440 0.f, root_layer->draw_properties().maximum_animation_contents_scale); 8441 EXPECT_FLOAT_EQ( 8442 0.f, child1_layer->draw_properties().maximum_animation_contents_scale); 8443 EXPECT_FLOAT_EQ(0.f, 8444 child1_layer->mask_layer() 8445 ->draw_properties() 8446 .maximum_animation_contents_scale); 8447 EXPECT_FLOAT_EQ(0.f, 8448 child1_layer->replica_layer() 8449 ->mask_layer() 8450 ->draw_properties() 8451 .maximum_animation_contents_scale); 8452 EXPECT_FLOAT_EQ( 8453 8.f, child2_layer->draw_properties().maximum_animation_contents_scale); 8454 8455 EXPECT_FLOAT_EQ(1.f, root_layer->draw_properties().page_scale_factor); 8456 EXPECT_FLOAT_EQ(1.f, child1_layer->draw_properties().page_scale_factor); 8457 EXPECT_FLOAT_EQ( 8458 1.f, child1_layer->mask_layer()->draw_properties().page_scale_factor); 8459 EXPECT_FLOAT_EQ(1.f, 8460 child1_layer->replica_layer() 8461 ->mask_layer() 8462 ->draw_properties() 8463 .page_scale_factor); 8464 EXPECT_FLOAT_EQ(1.f, child2_layer->draw_properties().page_scale_factor); 8465 8466 EXPECT_FLOAT_EQ(1.f, root_layer->draw_properties().device_scale_factor); 8467 EXPECT_FLOAT_EQ(1.f, child1_layer->draw_properties().device_scale_factor); 8468 EXPECT_FLOAT_EQ( 8469 1.f, child1_layer->mask_layer()->draw_properties().device_scale_factor); 8470 EXPECT_FLOAT_EQ(1.f, 8471 child1_layer->replica_layer() 8472 ->mask_layer() 8473 ->draw_properties() 8474 .device_scale_factor); 8475 EXPECT_FLOAT_EQ(1.f, child2_layer->draw_properties().device_scale_factor); 8476 8477 // Changing page-scale would affect ideal_contents_scale and 8478 // maximum_animation_contents_scale. 8479 8480 float page_scale_factor = 3.f; 8481 float device_scale_factor = 1.0f; 8482 std::vector<LayerImpl*> render_surface_layer_list; 8483 gfx::Size device_viewport_size = 8484 gfx::Size(root_layer->bounds().width() * device_scale_factor, 8485 root_layer->bounds().height() * device_scale_factor); 8486 LayerTreeHostCommon::CalcDrawPropsImplInputsForTesting inputs( 8487 root_layer, device_viewport_size, &render_surface_layer_list); 8488 8489 inputs.page_scale_factor = page_scale_factor; 8490 inputs.can_adjust_raster_scales = true; 8491 inputs.page_scale_application_layer = root_layer; 8492 LayerTreeHostCommon::CalculateDrawProperties(&inputs); 8493 8494 EXPECT_FLOAT_EQ(1.f, root_layer->draw_properties().ideal_contents_scale); 8495 EXPECT_FLOAT_EQ(9.f, child1_layer->draw_properties().ideal_contents_scale); 8496 EXPECT_FLOAT_EQ( 8497 9.f, child1_layer->mask_layer()->draw_properties().ideal_contents_scale); 8498 EXPECT_FLOAT_EQ(9.f, 8499 child1_layer->replica_layer() 8500 ->mask_layer() 8501 ->draw_properties() 8502 .ideal_contents_scale); 8503 EXPECT_FLOAT_EQ(15.f, child2_layer->draw_properties().ideal_contents_scale); 8504 8505 EXPECT_FLOAT_EQ( 8506 0.f, root_layer->draw_properties().maximum_animation_contents_scale); 8507 EXPECT_FLOAT_EQ( 8508 0.f, child1_layer->draw_properties().maximum_animation_contents_scale); 8509 EXPECT_FLOAT_EQ(0.f, 8510 child1_layer->mask_layer() 8511 ->draw_properties() 8512 .maximum_animation_contents_scale); 8513 EXPECT_FLOAT_EQ(0.f, 8514 child1_layer->replica_layer() 8515 ->mask_layer() 8516 ->draw_properties() 8517 .maximum_animation_contents_scale); 8518 EXPECT_FLOAT_EQ( 8519 24.f, child2_layer->draw_properties().maximum_animation_contents_scale); 8520 8521 EXPECT_FLOAT_EQ(1.f, root_layer->draw_properties().page_scale_factor); 8522 EXPECT_FLOAT_EQ(3.f, child1_layer->draw_properties().page_scale_factor); 8523 EXPECT_FLOAT_EQ( 8524 3.f, child1_layer->mask_layer()->draw_properties().page_scale_factor); 8525 EXPECT_FLOAT_EQ(3.f, 8526 child1_layer->replica_layer() 8527 ->mask_layer() 8528 ->draw_properties() 8529 .page_scale_factor); 8530 EXPECT_FLOAT_EQ(3.f, child2_layer->draw_properties().page_scale_factor); 8531 8532 EXPECT_FLOAT_EQ(1.f, root_layer->draw_properties().device_scale_factor); 8533 EXPECT_FLOAT_EQ(1.f, child1_layer->draw_properties().device_scale_factor); 8534 EXPECT_FLOAT_EQ( 8535 1.f, child1_layer->mask_layer()->draw_properties().device_scale_factor); 8536 EXPECT_FLOAT_EQ(1.f, 8537 child1_layer->replica_layer() 8538 ->mask_layer() 8539 ->draw_properties() 8540 .device_scale_factor); 8541 EXPECT_FLOAT_EQ(1.f, child2_layer->draw_properties().device_scale_factor); 8542 8543 // Changing device-scale would affect ideal_contents_scale and 8544 // maximum_animation_contents_scale. 8545 8546 device_scale_factor = 4.0f; 8547 inputs.device_scale_factor = device_scale_factor; 8548 inputs.can_adjust_raster_scales = true; 8549 LayerTreeHostCommon::CalculateDrawProperties(&inputs); 8550 8551 EXPECT_FLOAT_EQ(4.f, root_layer->draw_properties().ideal_contents_scale); 8552 EXPECT_FLOAT_EQ(36.f, child1_layer->draw_properties().ideal_contents_scale); 8553 EXPECT_FLOAT_EQ( 8554 36.f, child1_layer->mask_layer()->draw_properties().ideal_contents_scale); 8555 EXPECT_FLOAT_EQ(36.f, 8556 child1_layer->replica_layer() 8557 ->mask_layer() 8558 ->draw_properties() 8559 .ideal_contents_scale); 8560 EXPECT_FLOAT_EQ(60.f, child2_layer->draw_properties().ideal_contents_scale); 8561 8562 EXPECT_FLOAT_EQ( 8563 0.f, root_layer->draw_properties().maximum_animation_contents_scale); 8564 EXPECT_FLOAT_EQ( 8565 0.f, child1_layer->draw_properties().maximum_animation_contents_scale); 8566 EXPECT_FLOAT_EQ(0.f, 8567 child1_layer->mask_layer() 8568 ->draw_properties() 8569 .maximum_animation_contents_scale); 8570 EXPECT_FLOAT_EQ(0.f, 8571 child1_layer->replica_layer() 8572 ->mask_layer() 8573 ->draw_properties() 8574 .maximum_animation_contents_scale); 8575 EXPECT_FLOAT_EQ( 8576 96.f, child2_layer->draw_properties().maximum_animation_contents_scale); 8577 8578 EXPECT_FLOAT_EQ(1.f, root_layer->draw_properties().page_scale_factor); 8579 EXPECT_FLOAT_EQ(3.f, child1_layer->draw_properties().page_scale_factor); 8580 EXPECT_FLOAT_EQ( 8581 3.f, child1_layer->mask_layer()->draw_properties().page_scale_factor); 8582 EXPECT_FLOAT_EQ(3.f, 8583 child1_layer->replica_layer() 8584 ->mask_layer() 8585 ->draw_properties() 8586 .page_scale_factor); 8587 EXPECT_FLOAT_EQ(3.f, child2_layer->draw_properties().page_scale_factor); 8588 8589 EXPECT_FLOAT_EQ(4.f, root_layer->draw_properties().device_scale_factor); 8590 EXPECT_FLOAT_EQ(4.f, child1_layer->draw_properties().device_scale_factor); 8591 EXPECT_FLOAT_EQ( 8592 4.f, child1_layer->mask_layer()->draw_properties().device_scale_factor); 8593 EXPECT_FLOAT_EQ(4.f, 8594 child1_layer->replica_layer() 8595 ->mask_layer() 8596 ->draw_properties() 8597 .device_scale_factor); 8598 EXPECT_FLOAT_EQ(4.f, child2_layer->draw_properties().device_scale_factor); 8599 } 8600 8601 } // namespace 8602 } // namespace cc 8603
