cc/layer_impl_unittest.cc

   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/layer_impl.h"
   6
   7 #include "cc/single_thread_proxy.h"
   8 #include "testing/gmock/include/gmock/gmock.h"
   9 #include "testing/gtest/include/gtest/gtest.h"
  10 #include "third_party/skia/include/effects/SkBlurImageFilter.h"
  11 #include <public/WebFilterOperation.h>
  12 #include <public/WebFilterOperations.h>
  13
  14 using namespace WebKit;
  15
  16 namespace cc {
  17 namespace {
  18
  19 #define EXECUTE_AND_VERIFY_SUBTREE_CHANGED(codeToTest)                  \
  20     root->resetAllChangeTrackingForSubtree();                           \
  21     codeToTest;                                                         \
  22     EXPECT_TRUE(root->layerPropertyChanged());                          \
  23     EXPECT_TRUE(child->layerPropertyChanged());                         \
  24     EXPECT_TRUE(grandChild->layerPropertyChanged());                    \
  25     EXPECT_FALSE(root->layerSurfacePropertyChanged())
  26
  27
  28 #define EXECUTE_AND_VERIFY_SUBTREE_DID_NOT_CHANGE(codeToTest)           \
  29     root->resetAllChangeTrackingForSubtree();                           \
  30     codeToTest;                                                         \
  31     EXPECT_FALSE(root->layerPropertyChanged());                         \
  32     EXPECT_FALSE(child->layerPropertyChanged());                        \
  33     EXPECT_FALSE(grandChild->layerPropertyChanged());                   \
  34     EXPECT_FALSE(root->layerSurfacePropertyChanged())
  35
  36 #define EXECUTE_AND_VERIFY_ONLY_LAYER_CHANGED(codeToTest)               \
  37     root->resetAllChangeTrackingForSubtree();                           \
  38     codeToTest;                                                         \
  39     EXPECT_TRUE(root->layerPropertyChanged());                          \
  40     EXPECT_FALSE(child->layerPropertyChanged());                        \
  41     EXPECT_FALSE(grandChild->layerPropertyChanged());                   \
  42     EXPECT_FALSE(root->layerSurfacePropertyChanged())
  43
  44 #define EXECUTE_AND_VERIFY_ONLY_SURFACE_CHANGED(codeToTest)             \
  45     root->resetAllChangeTrackingForSubtree();                           \
  46     codeToTest;                                                         \
  47     EXPECT_FALSE(root->layerPropertyChanged());                         \
  48     EXPECT_FALSE(child->layerPropertyChanged());                        \
  49     EXPECT_FALSE(grandChild->layerPropertyChanged());                   \
  50     EXPECT_TRUE(root->layerSurfacePropertyChanged())
  51
  52 TEST(LayerImplTest, verifyLayerChangesAreTrackedProperly)
  53 {
  54     //
  55     // This test checks that layerPropertyChanged() has the correct behavior.
  56     //
  57
  58     // The constructor on this will fake that we are on the correct thread.
  59     // Create a simple LayerImpl tree:
  60     scoped_ptr<LayerImpl> root = LayerImpl::create(1);
  61     root->addChild(LayerImpl::create(2));
  62     LayerImpl* child = root->children()[0];
  63     child->addChild(LayerImpl::create(3));
  64     LayerImpl* grandChild = child->children()[0];
  65
  66     // Adding children is an internal operation and should not mark layers as changed.
  67     EXPECT_FALSE(root->layerPropertyChanged());
  68     EXPECT_FALSE(child->layerPropertyChanged());
  69     EXPECT_FALSE(grandChild->layerPropertyChanged());
  70
  71     gfx::PointF arbitraryPointF = gfx::PointF(0.125f, 0.25f);
  72     float arbitraryNumber = 0.352f;
  73     gfx::Size arbitrarySize = gfx::Size(111, 222);
  74     gfx::Point arbitraryPoint = gfx::Point(333, 444);
  75     gfx::Vector2d arbitraryVector2d = gfx::Vector2d(111, 222);
  76     gfx::Rect arbitraryRect = gfx::Rect(arbitraryPoint, arbitrarySize);
  77     gfx::RectF arbitraryRectF = gfx::RectF(arbitraryPointF, gfx::SizeF(1.234f, 5.678f));
  78     SkColor arbitraryColor = SkColorSetRGB(10, 20, 30);
  79     WebTransformationMatrix arbitraryTransform;
  80     arbitraryTransform.scale3d(0.1, 0.2, 0.3);
  81     WebFilterOperations arbitraryFilters;
  82     arbitraryFilters.append(WebFilterOperation::createOpacityFilter(0.5));
  83     SkAutoTUnref<SkImageFilter> arbitraryFilter(new SkBlurImageFilter(SK_Scalar1, SK_Scalar1));
  84
  85     // These properties are internal, and should not be considered "change" when they are used.
  86     EXECUTE_AND_VERIFY_SUBTREE_DID_NOT_CHANGE(root->setUseLCDText(true));
  87     EXECUTE_AND_VERIFY_SUBTREE_DID_NOT_CHANGE(root->setDrawOpacity(arbitraryNumber));
  88     EXECUTE_AND_VERIFY_SUBTREE_DID_NOT_CHANGE(root->setRenderTarget(0));
  89     EXECUTE_AND_VERIFY_SUBTREE_DID_NOT_CHANGE(root->setDrawTransform(arbitraryTransform));
  90     EXECUTE_AND_VERIFY_SUBTREE_DID_NOT_CHANGE(root->setScreenSpaceTransform(arbitraryTransform));
  91     EXECUTE_AND_VERIFY_SUBTREE_DID_NOT_CHANGE(root->setDrawableContentRect(arbitraryRect));
  92     EXECUTE_AND_VERIFY_SUBTREE_DID_NOT_CHANGE(root->setUpdateRect(arbitraryRectF));
  93     EXECUTE_AND_VERIFY_SUBTREE_DID_NOT_CHANGE(root->setVisibleContentRect(arbitraryRect));
  94     EXECUTE_AND_VERIFY_SUBTREE_DID_NOT_CHANGE(root->setMaxScrollOffset(arbitraryVector2d));
  95
  96     // Changing these properties affects the entire subtree of layers.
  97     EXECUTE_AND_VERIFY_SUBTREE_CHANGED(root->setAnchorPoint(arbitraryPointF));
  98     EXECUTE_AND_VERIFY_SUBTREE_CHANGED(root->setAnchorPointZ(arbitraryNumber));
  99     EXECUTE_AND_VERIFY_SUBTREE_CHANGED(root->setFilters(arbitraryFilters));
 100     EXECUTE_AND_VERIFY_SUBTREE_CHANGED(root->setFilters(WebFilterOperations()));
 101     EXECUTE_AND_VERIFY_SUBTREE_CHANGED(root->setFilter(arbitraryFilter));
 102     EXECUTE_AND_VERIFY_SUBTREE_CHANGED(root->setMaskLayer(LayerImpl::create(4)));
 103     EXECUTE_AND_VERIFY_SUBTREE_CHANGED(root->setMasksToBounds(true));
 104     EXECUTE_AND_VERIFY_SUBTREE_CHANGED(root->setContentsOpaque(true));
 105     EXECUTE_AND_VERIFY_SUBTREE_CHANGED(root->setReplicaLayer(LayerImpl::create(5)));
 106     EXECUTE_AND_VERIFY_SUBTREE_CHANGED(root->setPosition(arbitraryPointF));
 107     EXECUTE_AND_VERIFY_SUBTREE_CHANGED(root->setPreserves3D(true));
 108     EXECUTE_AND_VERIFY_SUBTREE_CHANGED(root->setDoubleSided(false)); // constructor initializes it to "true".
 109     EXECUTE_AND_VERIFY_SUBTREE_CHANGED(root->scrollBy(arbitraryVector2d));
 110     EXECUTE_AND_VERIFY_SUBTREE_CHANGED(root->setScrollDelta(gfx::Vector2d()));
 111     EXECUTE_AND_VERIFY_SUBTREE_CHANGED(root->setScrollOffset(arbitraryVector2d));
 112     EXECUTE_AND_VERIFY_SUBTREE_CHANGED(root->setImplTransform(arbitraryTransform));
 113
 114     // Changing these properties only affects the layer itself.
 115     EXECUTE_AND_VERIFY_ONLY_LAYER_CHANGED(root->setContentBounds(arbitrarySize));
 116     EXECUTE_AND_VERIFY_ONLY_LAYER_CHANGED(root->setContentsScale(arbitraryNumber, arbitraryNumber));
 117     EXECUTE_AND_VERIFY_ONLY_LAYER_CHANGED(root->setDrawsContent(true));
 118     EXECUTE_AND_VERIFY_ONLY_LAYER_CHANGED(root->setBackgroundColor(SK_ColorGRAY));
 119     EXECUTE_AND_VERIFY_ONLY_LAYER_CHANGED(root->setBackgroundFilters(arbitraryFilters));
 120
 121     // Changing these properties only affects how render surface is drawn
 122     EXECUTE_AND_VERIFY_ONLY_SURFACE_CHANGED(root->setOpacity(arbitraryNumber));
 123     EXECUTE_AND_VERIFY_ONLY_SURFACE_CHANGED(root->setTransform(arbitraryTransform));
 124
 125     // Special case: check that sublayer transform changes all layer's descendants, but not the layer itself.
 126     root->resetAllChangeTrackingForSubtree();
 127     root->setSublayerTransform(arbitraryTransform);
 128     EXPECT_FALSE(root->layerPropertyChanged());
 129     EXPECT_TRUE(child->layerPropertyChanged());
 130     EXPECT_TRUE(grandChild->layerPropertyChanged());
 131
 132     // Special case: check that setBounds changes behavior depending on masksToBounds.
 133     root->setMasksToBounds(false);
 134     EXECUTE_AND_VERIFY_ONLY_LAYER_CHANGED(root->setBounds(gfx::Size(135, 246)));
 135     root->setMasksToBounds(true);
 136     EXECUTE_AND_VERIFY_SUBTREE_CHANGED(root->setBounds(arbitrarySize)); // should be a different size than previous call, to ensure it marks tree changed.
 137
 138     // After setting all these properties already, setting to the exact same values again should
 139     // not cause any change.
 140     EXECUTE_AND_VERIFY_SUBTREE_DID_NOT_CHANGE(root->setAnchorPoint(arbitraryPointF));
 141     EXECUTE_AND_VERIFY_SUBTREE_DID_NOT_CHANGE(root->setAnchorPointZ(arbitraryNumber));
 142     EXECUTE_AND_VERIFY_SUBTREE_DID_NOT_CHANGE(root->setMasksToBounds(true));
 143     EXECUTE_AND_VERIFY_SUBTREE_DID_NOT_CHANGE(root->setPosition(arbitraryPointF));
 144     EXECUTE_AND_VERIFY_SUBTREE_DID_NOT_CHANGE(root->setPreserves3D(true));
 145     EXECUTE_AND_VERIFY_SUBTREE_DID_NOT_CHANGE(root->setTransform(arbitraryTransform));
 146     EXECUTE_AND_VERIFY_SUBTREE_DID_NOT_CHANGE(root->setDoubleSided(false)); // constructor initializes it to "true".
 147     EXECUTE_AND_VERIFY_SUBTREE_DID_NOT_CHANGE(root->setScrollDelta(gfx::Vector2d()));
 148     EXECUTE_AND_VERIFY_SUBTREE_DID_NOT_CHANGE(root->setScrollOffset(arbitraryVector2d));
 149     EXECUTE_AND_VERIFY_SUBTREE_DID_NOT_CHANGE(root->setImplTransform(arbitraryTransform));
 150     EXECUTE_AND_VERIFY_SUBTREE_DID_NOT_CHANGE(root->setContentBounds(arbitrarySize));
 151     EXECUTE_AND_VERIFY_SUBTREE_DID_NOT_CHANGE(root->setContentsScale(arbitraryNumber, arbitraryNumber));
 152     EXECUTE_AND_VERIFY_SUBTREE_DID_NOT_CHANGE(root->setContentsOpaque(true));
 153     EXECUTE_AND_VERIFY_SUBTREE_DID_NOT_CHANGE(root->setOpacity(arbitraryNumber));
 154     EXECUTE_AND_VERIFY_SUBTREE_DID_NOT_CHANGE(root->setDrawsContent(true));
 155     EXECUTE_AND_VERIFY_SUBTREE_DID_NOT_CHANGE(root->setSublayerTransform(arbitraryTransform));
 156     EXECUTE_AND_VERIFY_SUBTREE_DID_NOT_CHANGE(root->setBounds(arbitrarySize));
 157 }
 158
 159 }  // namespace
 160 }  // namespace cc