cc/LayerChromiumTest.cpp

   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 "config.h"
   6
   7 #include "LayerChromium.h"
   8
   9 #include "CCGeometryTestUtils.h"
  10 #include "CCKeyframedAnimationCurve.h"
  11 #include "CCLayerImpl.h"
  12 #include "CCLayerTreeHost.h"
  13 #include "CCSingleThreadProxy.h"
  14 #include "FakeCCLayerTreeHostClient.h"
  15 #include "LayerPainterChromium.h"
  16 #include "WebCompositorInitializer.h"
  17 #include <gmock/gmock.h>
  18 #include <gtest/gtest.h>
  19 #include <public/WebTransformationMatrix.h>
  20
  21 using namespace cc;
  22 using namespace WebKitTests;
  23 using WebKit::WebTransformationMatrix;
  24 using ::testing::Mock;
  25 using ::testing::_;
  26 using ::testing::AtLeast;
  27 using ::testing::AnyNumber;
  28
  29 #define EXECUTE_AND_VERIFY_SET_NEEDS_COMMIT_BEHAVIOR(numTimesExpectedSetNeedsCommit, codeToTest) do { \
  30         EXPECT_CALL(*m_layerTreeHost, setNeedsCommit()).Times((numTimesExpectedSetNeedsCommit));      \
  31         codeToTest;                                                                                   \
  32         Mock::VerifyAndClearExpectations(m_layerTreeHost.get());                                      \
  33     } while (0)
  34
  35 namespace {
  36
  37 class MockCCLayerTreeHost : public CCLayerTreeHost {
  38 public:
  39     MockCCLayerTreeHost()
  40         : CCLayerTreeHost(&m_fakeClient, CCLayerTreeSettings())
  41     {
  42         initialize();
  43     }
  44
  45     MOCK_METHOD0(setNeedsCommit, void());
  46
  47 private:
  48     FakeCCLayerTreeHostClient m_fakeClient;
  49 };
  50
  51 class MockLayerPainterChromium : public LayerPainterChromium {
  52 public:
  53     virtual void paint(SkCanvas*, const IntRect&, FloatRect&) OVERRIDE { }
  54 };
  55
  56
  57 class LayerChromiumTest : public testing::Test {
  58 public:
  59     LayerChromiumTest()
  60         : m_compositorInitializer(0)
  61     {
  62     }
  63
  64 protected:
  65     virtual void SetUp()
  66     {
  67         m_layerTreeHost = adoptPtr(new MockCCLayerTreeHost);
  68     }
  69
  70     virtual void TearDown()
  71     {
  72         Mock::VerifyAndClearExpectations(m_layerTreeHost.get());
  73         EXPECT_CALL(*m_layerTreeHost, setNeedsCommit()).Times(AnyNumber());
  74         m_parent.clear();
  75         m_child1.clear();
  76         m_child2.clear();
  77         m_child3.clear();
  78         m_grandChild1.clear();
  79         m_grandChild2.clear();
  80         m_grandChild3.clear();
  81
  82         m_layerTreeHost->setRootLayer(0);
  83         m_layerTreeHost.clear();
  84     }
  85
  86     void verifyTestTreeInitialState() const
  87     {
  88         ASSERT_EQ(static_cast<size_t>(3), m_parent->children().size());
  89         EXPECT_EQ(m_child1, m_parent->children()[0]);
  90         EXPECT_EQ(m_child2, m_parent->children()[1]);
  91         EXPECT_EQ(m_child3, m_parent->children()[2]);
  92         EXPECT_EQ(m_parent.get(), m_child1->parent());
  93         EXPECT_EQ(m_parent.get(), m_child2->parent());
  94         EXPECT_EQ(m_parent.get(), m_child3->parent());
  95
  96         ASSERT_EQ(static_cast<size_t>(2), m_child1->children().size());
  97         EXPECT_EQ(m_grandChild1, m_child1->children()[0]);
  98         EXPECT_EQ(m_grandChild2, m_child1->children()[1]);
  99         EXPECT_EQ(m_child1.get(), m_grandChild1->parent());
 100         EXPECT_EQ(m_child1.get(), m_grandChild2->parent());
 101
 102         ASSERT_EQ(static_cast<size_t>(1), m_child2->children().size());
 103         EXPECT_EQ(m_grandChild3, m_child2->children()[0]);
 104         EXPECT_EQ(m_child2.get(), m_grandChild3->parent());
 105
 106         ASSERT_EQ(static_cast<size_t>(0), m_child3->children().size());
 107     }
 108
 109     void createSimpleTestTree()
 110     {
 111         m_parent = LayerChromium::create();
 112         m_child1 = LayerChromium::create();
 113         m_child2 = LayerChromium::create();
 114         m_child3 = LayerChromium::create();
 115         m_grandChild1 = LayerChromium::create();
 116         m_grandChild2 = LayerChromium::create();
 117         m_grandChild3 = LayerChromium::create();
 118
 119         EXPECT_CALL(*m_layerTreeHost, setNeedsCommit()).Times(AnyNumber());
 120         m_layerTreeHost->setRootLayer(m_parent);
 121
 122         m_parent->addChild(m_child1);
 123         m_parent->addChild(m_child2);
 124         m_parent->addChild(m_child3);
 125         m_child1->addChild(m_grandChild1);
 126         m_child1->addChild(m_grandChild2);
 127         m_child2->addChild(m_grandChild3);
 128
 129         Mock::VerifyAndClearExpectations(m_layerTreeHost.get());
 130
 131         verifyTestTreeInitialState();
 132     }
 133
 134     OwnPtr<MockCCLayerTreeHost> m_layerTreeHost;
 135     RefPtr<LayerChromium> m_parent, m_child1, m_child2, m_child3, m_grandChild1, m_grandChild2, m_grandChild3;
 136     WebCompositorInitializer m_compositorInitializer;
 137 };
 138
 139 TEST_F(LayerChromiumTest, basicCreateAndDestroy)
 140 {
 141     RefPtr<LayerChromium> testLayer = LayerChromium::create();
 142     ASSERT_TRUE(testLayer);
 143
 144     EXPECT_CALL(*m_layerTreeHost, setNeedsCommit()).Times(0);
 145     testLayer->setLayerTreeHost(m_layerTreeHost.get());
 146 }
 147
 148 TEST_F(LayerChromiumTest, addAndRemoveChild)
 149 {
 150     RefPtr<LayerChromium> parent = LayerChromium::create();
 151     RefPtr<LayerChromium> child = LayerChromium::create();
 152
 153     // Upon creation, layers should not have children or parent.
 154     ASSERT_EQ(static_cast<size_t>(0), parent->children().size());
 155     EXPECT_FALSE(child->parent());
 156
 157     EXECUTE_AND_VERIFY_SET_NEEDS_COMMIT_BEHAVIOR(1, m_layerTreeHost->setRootLayer(parent));
 158
 159     EXECUTE_AND_VERIFY_SET_NEEDS_COMMIT_BEHAVIOR(1, parent->addChild(child));
 160
 161     ASSERT_EQ(static_cast<size_t>(1), parent->children().size());
 162     EXPECT_EQ(child.get(), parent->children()[0]);
 163     EXPECT_EQ(parent.get(), child->parent());
 164     EXPECT_EQ(parent.get(), child->rootLayer());
 165
 166     EXECUTE_AND_VERIFY_SET_NEEDS_COMMIT_BEHAVIOR(AtLeast(1), child->removeFromParent());
 167 }
 168
 169 TEST_F(LayerChromiumTest, insertChild)
 170 {
 171     RefPtr<LayerChromium> parent = LayerChromium::create();
 172     RefPtr<LayerChromium> child1 = LayerChromium::create();
 173     RefPtr<LayerChromium> child2 = LayerChromium::create();
 174     RefPtr<LayerChromium> child3 = LayerChromium::create();
 175     RefPtr<LayerChromium> child4 = LayerChromium::create();
 176
 177     parent->setLayerTreeHost(m_layerTreeHost.get());
 178
 179     ASSERT_EQ(static_cast<size_t>(0), parent->children().size());
 180
 181     // Case 1: inserting to empty list.
 182     EXECUTE_AND_VERIFY_SET_NEEDS_COMMIT_BEHAVIOR(1, parent->insertChild(child3, 0));
 183     ASSERT_EQ(static_cast<size_t>(1), parent->children().size());
 184     EXPECT_EQ(child3, parent->children()[0]);
 185     EXPECT_EQ(parent.get(), child3->parent());
 186
 187     // Case 2: inserting to beginning of list
 188     EXECUTE_AND_VERIFY_SET_NEEDS_COMMIT_BEHAVIOR(1, parent->insertChild(child1, 0));
 189     ASSERT_EQ(static_cast<size_t>(2), parent->children().size());
 190     EXPECT_EQ(child1, parent->children()[0]);
 191     EXPECT_EQ(child3, parent->children()[1]);
 192     EXPECT_EQ(parent.get(), child1->parent());
 193
 194     // Case 3: inserting to middle of list
 195     EXECUTE_AND_VERIFY_SET_NEEDS_COMMIT_BEHAVIOR(1, parent->insertChild(child2, 1));
 196     ASSERT_EQ(static_cast<size_t>(3), parent->children().size());
 197     EXPECT_EQ(child1, parent->children()[0]);
 198     EXPECT_EQ(child2, parent->children()[1]);
 199     EXPECT_EQ(child3, parent->children()[2]);
 200     EXPECT_EQ(parent.get(), child2->parent());
 201
 202     // Case 4: inserting to end of list
 203     EXECUTE_AND_VERIFY_SET_NEEDS_COMMIT_BEHAVIOR(1, parent->insertChild(child4, 3));
 204
 205     ASSERT_EQ(static_cast<size_t>(4), parent->children().size());
 206     EXPECT_EQ(child1, parent->children()[0]);
 207     EXPECT_EQ(child2, parent->children()[1]);
 208     EXPECT_EQ(child3, parent->children()[2]);
 209     EXPECT_EQ(child4, parent->children()[3]);
 210     EXPECT_EQ(parent.get(), child4->parent());
 211
 212     EXPECT_CALL(*m_layerTreeHost, setNeedsCommit()).Times(AtLeast(1));
 213 }
 214
 215 TEST_F(LayerChromiumTest, insertChildPastEndOfList)
 216 {
 217     RefPtr<LayerChromium> parent = LayerChromium::create();
 218     RefPtr<LayerChromium> child1 = LayerChromium::create();
 219     RefPtr<LayerChromium> child2 = LayerChromium::create();
 220
 221     ASSERT_EQ(static_cast<size_t>(0), parent->children().size());
 222
 223     // insert to an out-of-bounds index
 224     parent->insertChild(child1, 53);
 225
 226     ASSERT_EQ(static_cast<size_t>(1), parent->children().size());
 227     EXPECT_EQ(child1, parent->children()[0]);
 228
 229     // insert another child to out-of-bounds, when list is not already empty.
 230     parent->insertChild(child2, 2459);
 231
 232     ASSERT_EQ(static_cast<size_t>(2), parent->children().size());
 233     EXPECT_EQ(child1, parent->children()[0]);
 234     EXPECT_EQ(child2, parent->children()[1]);
 235 }
 236
 237 TEST_F(LayerChromiumTest, insertSameChildTwice)
 238 {
 239     RefPtr<LayerChromium> parent = LayerChromium::create();
 240     RefPtr<LayerChromium> child1 = LayerChromium::create();
 241     RefPtr<LayerChromium> child2 = LayerChromium::create();
 242
 243     parent->setLayerTreeHost(m_layerTreeHost.get());
 244
 245     ASSERT_EQ(static_cast<size_t>(0), parent->children().size());
 246
 247     EXECUTE_AND_VERIFY_SET_NEEDS_COMMIT_BEHAVIOR(1, parent->insertChild(child1, 0));
 248     EXECUTE_AND_VERIFY_SET_NEEDS_COMMIT_BEHAVIOR(1, parent->insertChild(child2, 1));
 249
 250     ASSERT_EQ(static_cast<size_t>(2), parent->children().size());
 251     EXPECT_EQ(child1, parent->children()[0]);
 252     EXPECT_EQ(child2, parent->children()[1]);
 253
 254     // Inserting the same child again should cause the child to be removed and re-inserted at the new location.
 255     EXECUTE_AND_VERIFY_SET_NEEDS_COMMIT_BEHAVIOR(AtLeast(1), parent->insertChild(child1, 1));
 256
 257     // child1 should now be at the end of the list.
 258     ASSERT_EQ(static_cast<size_t>(2), parent->children().size());
 259     EXPECT_EQ(child2, parent->children()[0]);
 260     EXPECT_EQ(child1, parent->children()[1]);
 261
 262     EXPECT_CALL(*m_layerTreeHost, setNeedsCommit()).Times(AtLeast(1));
 263 }
 264
 265 TEST_F(LayerChromiumTest, replaceChildWithNewChild)
 266 {
 267     createSimpleTestTree();
 268     RefPtr<LayerChromium> child4 = LayerChromium::create();
 269
 270     EXPECT_FALSE(child4->parent());
 271
 272     EXECUTE_AND_VERIFY_SET_NEEDS_COMMIT_BEHAVIOR(AtLeast(1), m_parent->replaceChild(m_child2.get(), child4));
 273
 274     ASSERT_EQ(static_cast<size_t>(3), m_parent->children().size());
 275     EXPECT_EQ(m_child1, m_parent->children()[0]);
 276     EXPECT_EQ(child4, m_parent->children()[1]);
 277     EXPECT_EQ(m_child3, m_parent->children()[2]);
 278     EXPECT_EQ(m_parent.get(), child4->parent());
 279
 280     EXPECT_FALSE(m_child2->parent());
 281 }
 282
 283 TEST_F(LayerChromiumTest, replaceChildWithNewChildThatHasOtherParent)
 284 {
 285     createSimpleTestTree();
 286
 287     // create another simple tree with testLayer and child4.
 288     RefPtr<LayerChromium> testLayer = LayerChromium::create();
 289     RefPtr<LayerChromium> child4 = LayerChromium::create();
 290     testLayer->addChild(child4);
 291     ASSERT_EQ(static_cast<size_t>(1), testLayer->children().size());
 292     EXPECT_EQ(child4, testLayer->children()[0]);
 293     EXPECT_EQ(testLayer.get(), child4->parent());
 294
 295     EXECUTE_AND_VERIFY_SET_NEEDS_COMMIT_BEHAVIOR(AtLeast(1), m_parent->replaceChild(m_child2.get(), child4));
 296
 297     ASSERT_EQ(static_cast<size_t>(3), m_parent->children().size());
 298     EXPECT_EQ(m_child1, m_parent->children()[0]);
 299     EXPECT_EQ(child4, m_parent->children()[1]);
 300     EXPECT_EQ(m_child3, m_parent->children()[2]);
 301     EXPECT_EQ(m_parent.get(), child4->parent());
 302
 303     // testLayer should no longer have child4,
 304     // and child2 should no longer have a parent.
 305     ASSERT_EQ(static_cast<size_t>(0), testLayer->children().size());
 306     EXPECT_FALSE(m_child2->parent());
 307 }
 308
 309 TEST_F(LayerChromiumTest, replaceChildWithSameChild)
 310 {
 311     createSimpleTestTree();
 312
 313     // setNeedsCommit should not be called because its the same child
 314     EXECUTE_AND_VERIFY_SET_NEEDS_COMMIT_BEHAVIOR(0, m_parent->replaceChild(m_child2.get(), m_child2));
 315
 316     verifyTestTreeInitialState();
 317 }
 318
 319 TEST_F(LayerChromiumTest, removeAllChildren)
 320 {
 321     createSimpleTestTree();
 322
 323     EXECUTE_AND_VERIFY_SET_NEEDS_COMMIT_BEHAVIOR(AtLeast(3), m_parent->removeAllChildren());
 324
 325     ASSERT_EQ(static_cast<size_t>(0), m_parent->children().size());
 326     EXPECT_FALSE(m_child1->parent());
 327     EXPECT_FALSE(m_child2->parent());
 328     EXPECT_FALSE(m_child3->parent());
 329 }
 330
 331 TEST_F(LayerChromiumTest, setChildren)
 332 {
 333     RefPtr<LayerChromium> oldParent = LayerChromium::create();
 334     RefPtr<LayerChromium> newParent = LayerChromium::create();
 335
 336     RefPtr<LayerChromium> child1 = LayerChromium::create();
 337     RefPtr<LayerChromium> child2 = LayerChromium::create();
 338
 339     Vector<RefPtr<LayerChromium> > newChildren;
 340     newChildren.append(child1);
 341     newChildren.append(child2);
 342
 343     // Set up and verify initial test conditions: child1 has a parent, child2 has no parent.
 344     oldParent->addChild(child1);
 345     ASSERT_EQ(static_cast<size_t>(0), newParent->children().size());
 346     EXPECT_EQ(oldParent.get(), child1->parent());
 347     EXPECT_FALSE(child2->parent());
 348
 349     newParent->setLayerTreeHost(m_layerTreeHost.get());
 350
 351     EXECUTE_AND_VERIFY_SET_NEEDS_COMMIT_BEHAVIOR(AtLeast(1), newParent->setChildren(newChildren));
 352
 353     ASSERT_EQ(static_cast<size_t>(2), newParent->children().size());
 354     EXPECT_EQ(newParent.get(), child1->parent());
 355     EXPECT_EQ(newParent.get(), child2->parent());
 356
 357     EXPECT_CALL(*m_layerTreeHost, setNeedsCommit()).Times(AtLeast(1));
 358 }
 359
 360 TEST_F(LayerChromiumTest, getRootLayerAfterTreeManipulations)
 361 {
 362     createSimpleTestTree();
 363
 364     // For this test we don't care about setNeedsCommit calls.
 365     EXPECT_CALL(*m_layerTreeHost, setNeedsCommit()).Times(AtLeast(1));
 366
 367     RefPtr<LayerChromium> child4 = LayerChromium::create();
 368
 369     EXPECT_EQ(m_parent.get(), m_parent->rootLayer());
 370     EXPECT_EQ(m_parent.get(), m_child1->rootLayer());
 371     EXPECT_EQ(m_parent.get(), m_child2->rootLayer());
 372     EXPECT_EQ(m_parent.get(), m_child3->rootLayer());
 373     EXPECT_EQ(child4.get(),   child4->rootLayer());
 374     EXPECT_EQ(m_parent.get(), m_grandChild1->rootLayer());
 375     EXPECT_EQ(m_parent.get(), m_grandChild2->rootLayer());
 376     EXPECT_EQ(m_parent.get(), m_grandChild3->rootLayer());
 377
 378     m_child1->removeFromParent();
 379
 380     // child1 and its children, grandChild1 and grandChild2 are now on a separate subtree.
 381     EXPECT_EQ(m_parent.get(), m_parent->rootLayer());
 382     EXPECT_EQ(m_child1.get(), m_child1->rootLayer());
 383     EXPECT_EQ(m_parent.get(), m_child2->rootLayer());
 384     EXPECT_EQ(m_parent.get(), m_child3->rootLayer());
 385     EXPECT_EQ(child4.get(), child4->rootLayer());
 386     EXPECT_EQ(m_child1.get(), m_grandChild1->rootLayer());
 387     EXPECT_EQ(m_child1.get(), m_grandChild2->rootLayer());
 388     EXPECT_EQ(m_parent.get(), m_grandChild3->rootLayer());
 389
 390     m_grandChild3->addChild(child4);
 391
 392     EXPECT_EQ(m_parent.get(), m_parent->rootLayer());
 393     EXPECT_EQ(m_child1.get(), m_child1->rootLayer());
 394     EXPECT_EQ(m_parent.get(), m_child2->rootLayer());
 395     EXPECT_EQ(m_parent.get(), m_child3->rootLayer());
 396     EXPECT_EQ(m_parent.get(), child4->rootLayer());
 397     EXPECT_EQ(m_child1.get(), m_grandChild1->rootLayer());
 398     EXPECT_EQ(m_child1.get(), m_grandChild2->rootLayer());
 399     EXPECT_EQ(m_parent.get(), m_grandChild3->rootLayer());
 400
 401     m_child2->replaceChild(m_grandChild3.get(), m_child1);
 402
 403     // grandChild3 gets orphaned and the child1 subtree gets planted back into the tree under child2.
 404     EXPECT_EQ(m_parent.get(), m_parent->rootLayer());
 405     EXPECT_EQ(m_parent.get(), m_child1->rootLayer());
 406     EXPECT_EQ(m_parent.get(), m_child2->rootLayer());
 407     EXPECT_EQ(m_parent.get(), m_child3->rootLayer());
 408     EXPECT_EQ(m_grandChild3.get(), child4->rootLayer());
 409     EXPECT_EQ(m_parent.get(), m_grandChild1->rootLayer());
 410     EXPECT_EQ(m_parent.get(), m_grandChild2->rootLayer());
 411     EXPECT_EQ(m_grandChild3.get(), m_grandChild3->rootLayer());
 412 }
 413
 414 TEST_F(LayerChromiumTest, checkSetNeedsDisplayCausesCorrectBehavior)
 415 {
 416     // The semantics for setNeedsDisplay which are tested here:
 417     //   1. sets needsDisplay flag appropriately.
 418     //   2. indirectly calls setNeedsCommit, exactly once for each call to setNeedsDisplay.
 419
 420     RefPtr<LayerChromium> testLayer = LayerChromium::create();
 421     testLayer->setLayerTreeHost(m_layerTreeHost.get());
 422
 423     IntSize testBounds = IntSize(501, 508);
 424
 425     FloatRect dirty1 = FloatRect(10, 15, 1, 2);
 426     FloatRect dirty2 = FloatRect(20, 25, 3, 4);
 427     FloatRect emptyDirtyRect = FloatRect(40, 45, 0, 0);
 428     FloatRect outOfBoundsDirtyRect = FloatRect(400, 405, 500, 502);
 429
 430     // Before anything, testLayer should not be dirty.
 431     EXPECT_FALSE(testLayer->needsDisplay());
 432
 433     // This is just initialization, but setNeedsCommit behavior is verified anyway to avoid warnings.
 434     EXECUTE_AND_VERIFY_SET_NEEDS_COMMIT_BEHAVIOR(1, testLayer->setBounds(testBounds));
 435     testLayer = LayerChromium::create();
 436     testLayer->setLayerTreeHost(m_layerTreeHost.get());
 437     EXPECT_FALSE(testLayer->needsDisplay());
 438
 439     // The real test begins here.
 440
 441     // Case 1: needsDisplay flag should not change because of an empty dirty rect.
 442     EXECUTE_AND_VERIFY_SET_NEEDS_COMMIT_BEHAVIOR(1, testLayer->setNeedsDisplayRect(emptyDirtyRect));
 443     EXPECT_FALSE(testLayer->needsDisplay());
 444
 445     // Case 2: basic.
 446     EXECUTE_AND_VERIFY_SET_NEEDS_COMMIT_BEHAVIOR(1, testLayer->setNeedsDisplayRect(dirty1));
 447     EXPECT_TRUE(testLayer->needsDisplay());
 448
 449     // Case 3: a second dirty rect.
 450     EXECUTE_AND_VERIFY_SET_NEEDS_COMMIT_BEHAVIOR(1, testLayer->setNeedsDisplayRect(dirty2));
 451     EXPECT_TRUE(testLayer->needsDisplay());
 452
 453     // Case 4: LayerChromium should accept dirty rects that go beyond its bounds.
 454     testLayer = LayerChromium::create();
 455     testLayer->setLayerTreeHost(m_layerTreeHost.get());
 456     EXECUTE_AND_VERIFY_SET_NEEDS_COMMIT_BEHAVIOR(1, testLayer->setBounds(testBounds));
 457     EXECUTE_AND_VERIFY_SET_NEEDS_COMMIT_BEHAVIOR(1, testLayer->setNeedsDisplayRect(outOfBoundsDirtyRect));
 458     EXPECT_TRUE(testLayer->needsDisplay());
 459
 460     // Case 5: setNeedsDisplay() without the dirty rect arg.
 461     testLayer = LayerChromium::create();
 462     testLayer->setLayerTreeHost(m_layerTreeHost.get());
 463     EXECUTE_AND_VERIFY_SET_NEEDS_COMMIT_BEHAVIOR(1, testLayer->setBounds(testBounds));
 464     EXECUTE_AND_VERIFY_SET_NEEDS_COMMIT_BEHAVIOR(1, testLayer->setNeedsDisplay());
 465     EXPECT_TRUE(testLayer->needsDisplay());
 466 }
 467
 468 TEST_F(LayerChromiumTest, checkPropertyChangeCausesCorrectBehavior)
 469 {
 470     RefPtr<LayerChromium> testLayer = LayerChromium::create();
 471     testLayer->setLayerTreeHost(m_layerTreeHost.get());
 472
 473     RefPtr<LayerChromium> dummyLayer = LayerChromium::create(); // just a dummy layer for this test case.
 474
 475     // sanity check of initial test condition
 476     EXPECT_FALSE(testLayer->needsDisplay());
 477
 478     // Test properties that should not call needsDisplay and needsCommit when changed.
 479     EXECUTE_AND_VERIFY_SET_NEEDS_COMMIT_BEHAVIOR(0, testLayer->setVisibleContentRect(IntRect(0, 0, 40, 50)));
 480     EXECUTE_AND_VERIFY_SET_NEEDS_COMMIT_BEHAVIOR(0, testLayer->setUseLCDText(true));
 481     EXECUTE_AND_VERIFY_SET_NEEDS_COMMIT_BEHAVIOR(0, testLayer->setDrawOpacity(0.5));
 482     EXECUTE_AND_VERIFY_SET_NEEDS_COMMIT_BEHAVIOR(0, testLayer->setRenderTarget(0));
 483     EXECUTE_AND_VERIFY_SET_NEEDS_COMMIT_BEHAVIOR(0, testLayer->setDrawTransform(WebTransformationMatrix()));
 484     EXECUTE_AND_VERIFY_SET_NEEDS_COMMIT_BEHAVIOR(0, testLayer->setScreenSpaceTransform(WebTransformationMatrix()));
 485     EXECUTE_AND_VERIFY_SET_NEEDS_COMMIT_BEHAVIOR(0, testLayer->setDrawableContentRect(IntRect(4, 5, 6, 7)));
 486     EXPECT_FALSE(testLayer->needsDisplay());
 487
 488     // Next, test properties that should call setNeedsCommit (but not setNeedsDisplay)
 489     // All properties need to be set to new values in order for setNeedsCommit to be called.
 490     EXECUTE_AND_VERIFY_SET_NEEDS_COMMIT_BEHAVIOR(1, testLayer->setAnchorPoint(FloatPoint(1.23f, 4.56f)));
 491     EXECUTE_AND_VERIFY_SET_NEEDS_COMMIT_BEHAVIOR(1, testLayer->setAnchorPointZ(0.7f));
 492     EXECUTE_AND_VERIFY_SET_NEEDS_COMMIT_BEHAVIOR(1, testLayer->setBackgroundColor(SK_ColorLTGRAY));
 493     EXECUTE_AND_VERIFY_SET_NEEDS_COMMIT_BEHAVIOR(1, testLayer->setMasksToBounds(true));
 494     EXECUTE_AND_VERIFY_SET_NEEDS_COMMIT_BEHAVIOR(1, testLayer->setMaskLayer(dummyLayer.get()));
 495     EXECUTE_AND_VERIFY_SET_NEEDS_COMMIT_BEHAVIOR(1, testLayer->setOpacity(0.5));
 496     EXECUTE_AND_VERIFY_SET_NEEDS_COMMIT_BEHAVIOR(1, testLayer->setOpaque(true));
 497     EXECUTE_AND_VERIFY_SET_NEEDS_COMMIT_BEHAVIOR(1, testLayer->setPosition(FloatPoint(4, 9)));
 498     EXECUTE_AND_VERIFY_SET_NEEDS_COMMIT_BEHAVIOR(1, testLayer->setReplicaLayer(dummyLayer.get()));
 499     EXECUTE_AND_VERIFY_SET_NEEDS_COMMIT_BEHAVIOR(1, testLayer->setSublayerTransform(WebTransformationMatrix(0, 0, 0, 0, 0, 0)));
 500     EXECUTE_AND_VERIFY_SET_NEEDS_COMMIT_BEHAVIOR(1, testLayer->setScrollable(true));
 501     EXECUTE_AND_VERIFY_SET_NEEDS_COMMIT_BEHAVIOR(1, testLayer->setShouldScrollOnMainThread(true));
 502     EXECUTE_AND_VERIFY_SET_NEEDS_COMMIT_BEHAVIOR(1, testLayer->setNonFastScrollableRegion(Region(IntRect(1, 1, 2, 2))));
 503     EXECUTE_AND_VERIFY_SET_NEEDS_COMMIT_BEHAVIOR(1, testLayer->setHaveWheelEventHandlers(true));
 504     EXECUTE_AND_VERIFY_SET_NEEDS_COMMIT_BEHAVIOR(1, testLayer->setScrollPosition(IntPoint(10, 10)));
 505     EXECUTE_AND_VERIFY_SET_NEEDS_COMMIT_BEHAVIOR(1, testLayer->setTransform(WebTransformationMatrix(0, 0, 0, 0, 0, 0)));
 506     EXECUTE_AND_VERIFY_SET_NEEDS_COMMIT_BEHAVIOR(1, testLayer->setDoubleSided(false));
 507     EXECUTE_AND_VERIFY_SET_NEEDS_COMMIT_BEHAVIOR(1, testLayer->setDebugName("Test Layer"));
 508     EXECUTE_AND_VERIFY_SET_NEEDS_COMMIT_BEHAVIOR(1, testLayer->setDrawCheckerboardForMissingTiles(!testLayer->drawCheckerboardForMissingTiles()));
 509     EXECUTE_AND_VERIFY_SET_NEEDS_COMMIT_BEHAVIOR(1, testLayer->setForceRenderSurface(true));
 510
 511     // The above tests should not have caused a change to the needsDisplay flag.
 512     EXPECT_FALSE(testLayer->needsDisplay());
 513
 514     // Test properties that should call setNeedsDisplay and setNeedsCommit
 515     EXECUTE_AND_VERIFY_SET_NEEDS_COMMIT_BEHAVIOR(1, testLayer->setBounds(IntSize(5, 10)));
 516     EXPECT_TRUE(testLayer->needsDisplay());
 517 }
 518
 519 TEST_F(LayerChromiumTest, verifyPushPropertiesAccumulatesUpdateRect)
 520 {
 521     DebugScopedSetImplThread setImplThread;
 522
 523     RefPtr<LayerChromium> testLayer = LayerChromium::create();
 524     OwnPtr<CCLayerImpl> implLayer = CCLayerImpl::create(1);
 525
 526     testLayer->setNeedsDisplayRect(FloatRect(FloatPoint::zero(), FloatSize(5, 5)));
 527     testLayer->pushPropertiesTo(implLayer.get());
 528     EXPECT_FLOAT_RECT_EQ(FloatRect(FloatPoint::zero(), FloatSize(5, 5)), implLayer->updateRect());
 529
 530     // The CCLayerImpl's updateRect should be accumulated here, since we did not do anything to clear it.
 531     testLayer->setNeedsDisplayRect(FloatRect(FloatPoint(10, 10), FloatSize(5, 5)));
 532     testLayer->pushPropertiesTo(implLayer.get());
 533     EXPECT_FLOAT_RECT_EQ(FloatRect(FloatPoint::zero(), FloatSize(15, 15)), implLayer->updateRect());
 534
 535     // If we do clear the CCLayerImpl side, then the next updateRect should be fresh without accumulation.
 536     implLayer->resetAllChangeTrackingForSubtree();
 537     testLayer->setNeedsDisplayRect(FloatRect(FloatPoint(10, 10), FloatSize(5, 5)));
 538     testLayer->pushPropertiesTo(implLayer.get());
 539     EXPECT_FLOAT_RECT_EQ(FloatRect(FloatPoint(10, 10), FloatSize(5, 5)), implLayer->updateRect());
 540 }
 541
 542 class LayerChromiumWithContentScaling : public LayerChromium {
 543 public:
 544     explicit LayerChromiumWithContentScaling()
 545         : LayerChromium()
 546     {
 547     }
 548
 549     virtual bool needsContentsScale() const OVERRIDE
 550     {
 551         return true;
 552     }
 553
 554     virtual void setNeedsDisplayRect(const FloatRect& dirtyRect) OVERRIDE
 555     {
 556         m_lastNeedsDisplayRect = dirtyRect;
 557         LayerChromium::setNeedsDisplayRect(dirtyRect);
 558     }
 559
 560     void resetNeedsDisplay()
 561     {
 562         m_needsDisplay = false;
 563     }
 564
 565     const FloatRect& lastNeedsDisplayRect() const { return m_lastNeedsDisplayRect; }
 566
 567 private:
 568     FloatRect m_lastNeedsDisplayRect;
 569 };
 570
 571 TEST_F(LayerChromiumTest, checkContentsScaleChangeTriggersNeedsDisplay)
 572 {
 573     RefPtr<LayerChromiumWithContentScaling> testLayer = adoptRef(new LayerChromiumWithContentScaling());
 574     testLayer->setLayerTreeHost(m_layerTreeHost.get());
 575
 576     IntSize testBounds = IntSize(320, 240);
 577     EXECUTE_AND_VERIFY_SET_NEEDS_COMMIT_BEHAVIOR(1, testLayer->setBounds(testBounds));
 578
 579     testLayer->resetNeedsDisplay();
 580     EXPECT_FALSE(testLayer->needsDisplay());
 581
 582     EXECUTE_AND_VERIFY_SET_NEEDS_COMMIT_BEHAVIOR(1, testLayer->setContentsScale(testLayer->contentsScale() + 1.f));
 583     EXPECT_TRUE(testLayer->needsDisplay());
 584     EXPECT_FLOAT_RECT_EQ(FloatRect(0, 0, 320, 240), testLayer->lastNeedsDisplayRect());
 585 }
 586
 587 class FakeCCLayerTreeHost : public CCLayerTreeHost {
 588 public:
 589     static PassOwnPtr<FakeCCLayerTreeHost> create()
 590     {
 591         OwnPtr<FakeCCLayerTreeHost> host(adoptPtr(new FakeCCLayerTreeHost));
 592         // The initialize call will fail, since our client doesn't provide a valid GraphicsContext3D, but it doesn't matter in the tests that use this fake so ignore the return value.
 593         host->initialize();
 594         return host.release();
 595     }
 596
 597 private:
 598     FakeCCLayerTreeHost()
 599         : CCLayerTreeHost(&m_client, CCLayerTreeSettings())
 600     {
 601     }
 602
 603     FakeCCLayerTreeHostClient m_client;
 604 };
 605
 606 void assertLayerTreeHostMatchesForSubtree(LayerChromium* layer, CCLayerTreeHost* host)
 607 {
 608     EXPECT_EQ(host, layer->layerTreeHost());
 609
 610     for (size_t i = 0; i < layer->children().size(); ++i)
 611         assertLayerTreeHostMatchesForSubtree(layer->children()[i].get(), host);
 612
 613     if (layer->maskLayer())
 614         assertLayerTreeHostMatchesForSubtree(layer->maskLayer(), host);
 615
 616     if (layer->replicaLayer())
 617         assertLayerTreeHostMatchesForSubtree(layer->replicaLayer(), host);
 618 }
 619
 620
 621 TEST(LayerChromiumLayerTreeHostTest, enteringTree)
 622 {
 623     WebCompositorInitializer compositorInitializer(0);
 624     RefPtr<LayerChromium> parent = LayerChromium::create();
 625     RefPtr<LayerChromium> child = LayerChromium::create();
 626     RefPtr<LayerChromium> mask = LayerChromium::create();
 627     RefPtr<LayerChromium> replica = LayerChromium::create();
 628     RefPtr<LayerChromium> replicaMask = LayerChromium::create();
 629
 630     // Set up a detached tree of layers. The host pointer should be nil for these layers.
 631     parent->addChild(child);
 632     child->setMaskLayer(mask.get());
 633     child->setReplicaLayer(replica.get());
 634     replica->setMaskLayer(mask.get());
 635
 636     assertLayerTreeHostMatchesForSubtree(parent.get(), 0);
 637
 638     OwnPtr<FakeCCLayerTreeHost> layerTreeHost(FakeCCLayerTreeHost::create());
 639     // Setting the root layer should set the host pointer for all layers in the tree.
 640     layerTreeHost->setRootLayer(parent.get());
 641
 642     assertLayerTreeHostMatchesForSubtree(parent.get(), layerTreeHost.get());
 643
 644     // Clearing the root layer should also clear out the host pointers for all layers in the tree.
 645     layerTreeHost->setRootLayer(0);
 646
 647     assertLayerTreeHostMatchesForSubtree(parent.get(), 0);
 648
 649     layerTreeHost.clear();
 650 }
 651
 652 TEST(LayerChromiumLayerTreeHostTest, addingLayerSubtree)
 653 {
 654     WebCompositorInitializer compositorInitializer(0);
 655     RefPtr<LayerChromium> parent = LayerChromium::create();
 656     OwnPtr<FakeCCLayerTreeHost> layerTreeHost(FakeCCLayerTreeHost::create());
 657
 658     layerTreeHost->setRootLayer(parent.get());
 659
 660     EXPECT_EQ(parent->layerTreeHost(), layerTreeHost.get());
 661
 662     // Adding a subtree to a layer already associated with a host should set the host pointer on all layers in that subtree.
 663     RefPtr<LayerChromium> child = LayerChromium::create();
 664     RefPtr<LayerChromium> grandChild = LayerChromium::create();
 665     child->addChild(grandChild);
 666
 667     // Masks, replicas, and replica masks should pick up the new host too.
 668     RefPtr<LayerChromium> childMask = LayerChromium::create();
 669     child->setMaskLayer(childMask.get());
 670     RefPtr<LayerChromium> childReplica = LayerChromium::create();
 671     child->setReplicaLayer(childReplica.get());
 672     RefPtr<LayerChromium> childReplicaMask = LayerChromium::create();
 673     childReplica->setMaskLayer(childReplicaMask.get());
 674
 675     parent->addChild(child);
 676     assertLayerTreeHostMatchesForSubtree(parent.get(), layerTreeHost.get());
 677
 678     layerTreeHost->setRootLayer(0);
 679     layerTreeHost.clear();
 680 }
 681
 682 TEST(LayerChromiumLayerTreeHostTest, changeHost)
 683 {
 684     WebCompositorInitializer compositorInitializer(0);
 685     RefPtr<LayerChromium> parent = LayerChromium::create();
 686     RefPtr<LayerChromium> child = LayerChromium::create();
 687     RefPtr<LayerChromium> mask = LayerChromium::create();
 688     RefPtr<LayerChromium> replica = LayerChromium::create();
 689     RefPtr<LayerChromium> replicaMask = LayerChromium::create();
 690
 691     // Same setup as the previous test.
 692     parent->addChild(child);
 693     child->setMaskLayer(mask.get());
 694     child->setReplicaLayer(replica.get());
 695     replica->setMaskLayer(mask.get());
 696
 697     OwnPtr<FakeCCLayerTreeHost> firstLayerTreeHost(FakeCCLayerTreeHost::create());
 698     firstLayerTreeHost->setRootLayer(parent.get());
 699
 700     assertLayerTreeHostMatchesForSubtree(parent.get(), firstLayerTreeHost.get());
 701
 702     // Now re-root the tree to a new host (simulating what we do on a context lost event).
 703     // This should update the host pointers for all layers in the tree.
 704     OwnPtr<FakeCCLayerTreeHost> secondLayerTreeHost(FakeCCLayerTreeHost::create());
 705     secondLayerTreeHost->setRootLayer(parent.get());
 706
 707     assertLayerTreeHostMatchesForSubtree(parent.get(), secondLayerTreeHost.get());
 708
 709     secondLayerTreeHost->setRootLayer(0);
 710     firstLayerTreeHost.clear();
 711     secondLayerTreeHost.clear();
 712 }
 713
 714 TEST(LayerChromiumLayerTreeHostTest, changeHostInSubtree)
 715 {
 716     WebCompositorInitializer compositorInitializer(0);
 717     RefPtr<LayerChromium> firstParent = LayerChromium::create();
 718     RefPtr<LayerChromium> firstChild = LayerChromium::create();
 719     RefPtr<LayerChromium> secondParent = LayerChromium::create();
 720     RefPtr<LayerChromium> secondChild = LayerChromium::create();
 721     RefPtr<LayerChromium> secondGrandChild = LayerChromium::create();
 722
 723     // First put all children under the first parent and set the first host.
 724     firstParent->addChild(firstChild);
 725     secondChild->addChild(secondGrandChild);
 726     firstParent->addChild(secondChild);
 727
 728     OwnPtr<FakeCCLayerTreeHost> firstLayerTreeHost(FakeCCLayerTreeHost::create());
 729     firstLayerTreeHost->setRootLayer(firstParent.get());
 730
 731     assertLayerTreeHostMatchesForSubtree(firstParent.get(), firstLayerTreeHost.get());
 732
 733     // Now reparent the subtree starting at secondChild to a layer in a different tree.
 734     OwnPtr<FakeCCLayerTreeHost> secondLayerTreeHost(FakeCCLayerTreeHost::create());
 735     secondLayerTreeHost->setRootLayer(secondParent.get());
 736
 737     secondParent->addChild(secondChild);
 738
 739     // The moved layer and its children should point to the new host.
 740     EXPECT_EQ(secondLayerTreeHost.get(), secondChild->layerTreeHost());
 741     EXPECT_EQ(secondLayerTreeHost.get(), secondGrandChild->layerTreeHost());
 742
 743     // Test over, cleanup time.
 744     firstLayerTreeHost->setRootLayer(0);
 745     secondLayerTreeHost->setRootLayer(0);
 746     firstLayerTreeHost.clear();
 747     secondLayerTreeHost.clear();
 748 }
 749
 750 TEST(LayerChromiumLayerTreeHostTest, replaceMaskAndReplicaLayer)
 751 {
 752     WebCompositorInitializer compositorInitializer(0);
 753     RefPtr<LayerChromium> parent = LayerChromium::create();
 754     RefPtr<LayerChromium> mask = LayerChromium::create();
 755     RefPtr<LayerChromium> replica = LayerChromium::create();
 756     RefPtr<LayerChromium> maskChild = LayerChromium::create();
 757     RefPtr<LayerChromium> replicaChild = LayerChromium::create();
 758     RefPtr<LayerChromium> maskReplacement = LayerChromium::create();
 759     RefPtr<LayerChromium> replicaReplacement = LayerChromium::create();
 760
 761     parent->setMaskLayer(mask.get());
 762     parent->setReplicaLayer(replica.get());
 763     mask->addChild(maskChild);
 764     replica->addChild(replicaChild);
 765
 766     OwnPtr<FakeCCLayerTreeHost> layerTreeHost(FakeCCLayerTreeHost::create());
 767     layerTreeHost->setRootLayer(parent.get());
 768
 769     assertLayerTreeHostMatchesForSubtree(parent.get(), layerTreeHost.get());
 770
 771     // Replacing the mask should clear out the old mask's subtree's host pointers.
 772     parent->setMaskLayer(maskReplacement.get());
 773     EXPECT_EQ(0, mask->layerTreeHost());
 774     EXPECT_EQ(0, maskChild->layerTreeHost());
 775
 776     // Same for replacing a replica layer.
 777     parent->setReplicaLayer(replicaReplacement.get());
 778     EXPECT_EQ(0, replica->layerTreeHost());
 779     EXPECT_EQ(0, replicaChild->layerTreeHost());
 780
 781     // Test over, cleanup time.
 782     layerTreeHost->setRootLayer(0);
 783     layerTreeHost.clear();
 784 }
 785
 786 TEST(LayerChromiumLayerTreeHostTest, destroyHostWithNonNullRootLayer)
 787 {
 788     WebCompositorInitializer compositorInitializer(0);
 789     RefPtr<LayerChromium> root = LayerChromium::create();
 790     RefPtr<LayerChromium> child = LayerChromium::create();
 791     root->addChild(child);
 792     OwnPtr<FakeCCLayerTreeHost> layerTreeHost(FakeCCLayerTreeHost::create());
 793     layerTreeHost->setRootLayer(root);
 794     layerTreeHost.clear();
 795 }
 796
 797 static bool addTestAnimation(LayerChromium* layer)
 798 {
 799     OwnPtr<CCKeyframedFloatAnimationCurve> curve(CCKeyframedFloatAnimationCurve::create());
 800     curve->addKeyframe(CCFloatKeyframe::create(0, 0.3f, nullptr));
 801     curve->addKeyframe(CCFloatKeyframe::create(1, 0.7f, nullptr));
 802     OwnPtr<CCActiveAnimation> animation(CCActiveAnimation::create(curve.release(), 0, 0, CCActiveAnimation::Opacity));
 803
 804     return layer->addAnimation(animation.release());
 805 }
 806
 807 TEST(LayerChromiumLayerTreeHostTest, shouldNotAddAnimationWithoutLayerTreeHost)
 808 {
 809     // Currently, WebCore assumes that animations will be started immediately / very soon
 810     // if a composited layer's addAnimation() returns true. However, without a layerTreeHost,
 811     // layers cannot actually animate yet. So, to prevent violating this WebCore assumption,
 812     // the animation should not be accepted if the layer doesn't already have a layerTreeHost.
 813
 814     WebKit::Platform::current()->compositorSupport()->setAcceleratedAnimationEnabled(true);
 815
 816     WebCompositorInitializer compositorInitializer(0);
 817     RefPtr<LayerChromium> layer = LayerChromium::create();
 818
 819     // Case 1: without a layerTreeHost, the animation should not be accepted.
 820     EXPECT_FALSE(addTestAnimation(layer.get()));
 821
 822     OwnPtr<FakeCCLayerTreeHost> layerTreeHost(FakeCCLayerTreeHost::create());
 823     layerTreeHost->setRootLayer(layer.get());
 824     layer->setLayerTreeHost(layerTreeHost.get());
 825     assertLayerTreeHostMatchesForSubtree(layer.get(), layerTreeHost.get());
 826
 827     // Case 2: with a layerTreeHost, the animation should be accepted.
 828     EXPECT_TRUE(addTestAnimation(layer.get()));
 829 }
 830
 831 class MockLayerChromium : public LayerChromium {
 832 public:
 833     bool needsDisplay() const { return m_needsDisplay; }
 834 };
 835
 836 TEST(LayerChromiumTestWithoutFixture, setBoundsTriggersSetNeedsRedrawAfterGettingNonEmptyBounds)
 837 {
 838     RefPtr<MockLayerChromium> layer(adoptRef(new MockLayerChromium));
 839     EXPECT_FALSE(layer->needsDisplay());
 840     layer->setBounds(IntSize(0, 10));
 841     EXPECT_FALSE(layer->needsDisplay());
 842     layer->setBounds(IntSize(10, 10));
 843     EXPECT_TRUE(layer->needsDisplay());
 844 }
 845
 846
 847 } // namespace