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src/cc/layer_impl_unittest.cc
danakj@chromium.org 3dce37234c cc: Add support for debugging layer borders directly in the compositor 
Instead of supporting --show-composited-layer-borders via the GraphicsLayer
debug borders mechanism, show debug borders on layers when the new
LayerTreeSetting flag showDebugBorders is enabled.

This depends on https://bugs.webkit.org/show_bug.cgi?id=102130

BUG=159769
R=jamesr,enne

Review URL: https://chromiumcodereview.appspot.com/11365239

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@167815 0039d316-1c4b-4281-b951-d872f2087c98
2012-11-15 01:47:44 +00:00

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// Copyright 2011 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "cc/layer_impl.h"
#include "cc/single_thread_proxy.h"
#include "testing/gmock/include/gmock/gmock.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "third_party/skia/include/effects/SkBlurImageFilter.h"
#include <public/WebFilterOperation.h>
#include <public/WebFilterOperations.h>
using namespace WebKit;
namespace cc {
namespace {
#define EXECUTE_AND_VERIFY_SUBTREE_CHANGED(codeToTest) \
root->resetAllChangeTrackingForSubtree(); \
codeToTest; \
EXPECT_TRUE(root->layerPropertyChanged()); \
EXPECT_TRUE(child->layerPropertyChanged()); \
EXPECT_TRUE(grandChild->layerPropertyChanged()); \
EXPECT_FALSE(root->layerSurfacePropertyChanged())
#define EXECUTE_AND_VERIFY_SUBTREE_DID_NOT_CHANGE(codeToTest) \
root->resetAllChangeTrackingForSubtree(); \
codeToTest; \
EXPECT_FALSE(root->layerPropertyChanged()); \
EXPECT_FALSE(child->layerPropertyChanged()); \
EXPECT_FALSE(grandChild->layerPropertyChanged()); \
EXPECT_FALSE(root->layerSurfacePropertyChanged())
#define EXECUTE_AND_VERIFY_ONLY_LAYER_CHANGED(codeToTest) \
root->resetAllChangeTrackingForSubtree(); \
codeToTest; \
EXPECT_TRUE(root->layerPropertyChanged()); \
EXPECT_FALSE(child->layerPropertyChanged()); \
EXPECT_FALSE(grandChild->layerPropertyChanged()); \
EXPECT_FALSE(root->layerSurfacePropertyChanged())
#define EXECUTE_AND_VERIFY_ONLY_SURFACE_CHANGED(codeToTest) \
root->resetAllChangeTrackingForSubtree(); \
codeToTest; \
EXPECT_FALSE(root->layerPropertyChanged()); \
EXPECT_FALSE(child->layerPropertyChanged()); \
EXPECT_FALSE(grandChild->layerPropertyChanged()); \
EXPECT_TRUE(root->layerSurfacePropertyChanged())
TEST(LayerImplTest, verifyLayerChangesAreTrackedProperly)
{
//
// This test checks that layerPropertyChanged() has the correct behavior.
//
// The constructor on this will fake that we are on the correct thread.
// Create a simple LayerImpl tree:
scoped_ptr<LayerImpl> root = LayerImpl::create(1);
root->addChild(LayerImpl::create(2));
LayerImpl* child = root->children()[0];
child->addChild(LayerImpl::create(3));
LayerImpl* grandChild = child->children()[0];
// Adding children is an internal operation and should not mark layers as changed.
EXPECT_FALSE(root->layerPropertyChanged());
EXPECT_FALSE(child->layerPropertyChanged());
EXPECT_FALSE(grandChild->layerPropertyChanged());
gfx::PointF arbitraryPointF = gfx::PointF(0.125f, 0.25f);
float arbitraryNumber = 0.352f;
gfx::Size arbitrarySize = gfx::Size(111, 222);
gfx::Point arbitraryPoint = gfx::Point(333, 444);
gfx::Vector2d arbitraryVector2d = gfx::Vector2d(111, 222);
gfx::Rect arbitraryRect = gfx::Rect(arbitraryPoint, arbitrarySize);
gfx::RectF arbitraryRectF = gfx::RectF(arbitraryPointF, gfx::SizeF(1.234f, 5.678f));
SkColor arbitraryColor = SkColorSetRGB(10, 20, 30);
WebTransformationMatrix arbitraryTransform;
arbitraryTransform.scale3d(0.1, 0.2, 0.3);
WebFilterOperations arbitraryFilters;
arbitraryFilters.append(WebFilterOperation::createOpacityFilter(0.5));
SkAutoTUnref<SkImageFilter> arbitraryFilter(new SkBlurImageFilter(SK_Scalar1, SK_Scalar1));
// These properties are internal, and should not be considered "change" when they are used.
EXECUTE_AND_VERIFY_SUBTREE_DID_NOT_CHANGE(root->setUseLCDText(true));
EXECUTE_AND_VERIFY_SUBTREE_DID_NOT_CHANGE(root->setDrawOpacity(arbitraryNumber));
EXECUTE_AND_VERIFY_SUBTREE_DID_NOT_CHANGE(root->setRenderTarget(0));
EXECUTE_AND_VERIFY_SUBTREE_DID_NOT_CHANGE(root->setDrawTransform(arbitraryTransform));
EXECUTE_AND_VERIFY_SUBTREE_DID_NOT_CHANGE(root->setScreenSpaceTransform(arbitraryTransform));
EXECUTE_AND_VERIFY_SUBTREE_DID_NOT_CHANGE(root->setDrawableContentRect(arbitraryRect));
EXECUTE_AND_VERIFY_SUBTREE_DID_NOT_CHANGE(root->setUpdateRect(arbitraryRectF));
EXECUTE_AND_VERIFY_SUBTREE_DID_NOT_CHANGE(root->setVisibleContentRect(arbitraryRect));
EXECUTE_AND_VERIFY_SUBTREE_DID_NOT_CHANGE(root->setMaxScrollOffset(arbitraryVector2d));
// Changing these properties affects the entire subtree of layers.
EXECUTE_AND_VERIFY_SUBTREE_CHANGED(root->setAnchorPoint(arbitraryPointF));
EXECUTE_AND_VERIFY_SUBTREE_CHANGED(root->setAnchorPointZ(arbitraryNumber));
EXECUTE_AND_VERIFY_SUBTREE_CHANGED(root->setFilters(arbitraryFilters));
EXECUTE_AND_VERIFY_SUBTREE_CHANGED(root->setFilters(WebFilterOperations()));
EXECUTE_AND_VERIFY_SUBTREE_CHANGED(root->setFilter(arbitraryFilter));
EXECUTE_AND_VERIFY_SUBTREE_CHANGED(root->setMaskLayer(LayerImpl::create(4)));
EXECUTE_AND_VERIFY_SUBTREE_CHANGED(root->setMasksToBounds(true));
EXECUTE_AND_VERIFY_SUBTREE_CHANGED(root->setContentsOpaque(true));
EXECUTE_AND_VERIFY_SUBTREE_CHANGED(root->setReplicaLayer(LayerImpl::create(5)));
EXECUTE_AND_VERIFY_SUBTREE_CHANGED(root->setPosition(arbitraryPointF));
EXECUTE_AND_VERIFY_SUBTREE_CHANGED(root->setPreserves3D(true));
EXECUTE_AND_VERIFY_SUBTREE_CHANGED(root->setDoubleSided(false)); // constructor initializes it to "true".
EXECUTE_AND_VERIFY_SUBTREE_CHANGED(root->scrollBy(arbitraryVector2d));
EXECUTE_AND_VERIFY_SUBTREE_CHANGED(root->setScrollDelta(gfx::Vector2d()));
EXECUTE_AND_VERIFY_SUBTREE_CHANGED(root->setScrollOffset(arbitraryVector2d));
EXECUTE_AND_VERIFY_SUBTREE_CHANGED(root->setImplTransform(arbitraryTransform));
// Changing these properties only affects the layer itself.
EXECUTE_AND_VERIFY_ONLY_LAYER_CHANGED(root->setContentBounds(arbitrarySize));
EXECUTE_AND_VERIFY_ONLY_LAYER_CHANGED(root->setContentsScale(arbitraryNumber, arbitraryNumber));
EXECUTE_AND_VERIFY_ONLY_LAYER_CHANGED(root->setDrawsContent(true));
EXECUTE_AND_VERIFY_ONLY_LAYER_CHANGED(root->setBackgroundColor(SK_ColorGRAY));
EXECUTE_AND_VERIFY_ONLY_LAYER_CHANGED(root->setBackgroundFilters(arbitraryFilters));
// Changing these properties only affects how render surface is drawn
EXECUTE_AND_VERIFY_ONLY_SURFACE_CHANGED(root->setOpacity(arbitraryNumber));
EXECUTE_AND_VERIFY_ONLY_SURFACE_CHANGED(root->setTransform(arbitraryTransform));
// Special case: check that sublayer transform changes all layer's descendants, but not the layer itself.
root->resetAllChangeTrackingForSubtree();
root->setSublayerTransform(arbitraryTransform);
EXPECT_FALSE(root->layerPropertyChanged());
EXPECT_TRUE(child->layerPropertyChanged());
EXPECT_TRUE(grandChild->layerPropertyChanged());
// Special case: check that setBounds changes behavior depending on masksToBounds.
root->setMasksToBounds(false);
EXECUTE_AND_VERIFY_ONLY_LAYER_CHANGED(root->setBounds(gfx::Size(135, 246)));
root->setMasksToBounds(true);
EXECUTE_AND_VERIFY_SUBTREE_CHANGED(root->setBounds(arbitrarySize)); // should be a different size than previous call, to ensure it marks tree changed.
// After setting all these properties already, setting to the exact same values again should
// not cause any change.
EXECUTE_AND_VERIFY_SUBTREE_DID_NOT_CHANGE(root->setAnchorPoint(arbitraryPointF));
EXECUTE_AND_VERIFY_SUBTREE_DID_NOT_CHANGE(root->setAnchorPointZ(arbitraryNumber));
EXECUTE_AND_VERIFY_SUBTREE_DID_NOT_CHANGE(root->setMasksToBounds(true));
EXECUTE_AND_VERIFY_SUBTREE_DID_NOT_CHANGE(root->setPosition(arbitraryPointF));
EXECUTE_AND_VERIFY_SUBTREE_DID_NOT_CHANGE(root->setPreserves3D(true));
EXECUTE_AND_VERIFY_SUBTREE_DID_NOT_CHANGE(root->setTransform(arbitraryTransform));
EXECUTE_AND_VERIFY_SUBTREE_DID_NOT_CHANGE(root->setDoubleSided(false)); // constructor initializes it to "true".
EXECUTE_AND_VERIFY_SUBTREE_DID_NOT_CHANGE(root->setScrollDelta(gfx::Vector2d()));
EXECUTE_AND_VERIFY_SUBTREE_DID_NOT_CHANGE(root->setScrollOffset(arbitraryVector2d));
EXECUTE_AND_VERIFY_SUBTREE_DID_NOT_CHANGE(root->setImplTransform(arbitraryTransform));
EXECUTE_AND_VERIFY_SUBTREE_DID_NOT_CHANGE(root->setContentBounds(arbitrarySize));
EXECUTE_AND_VERIFY_SUBTREE_DID_NOT_CHANGE(root->setContentsScale(arbitraryNumber, arbitraryNumber));
EXECUTE_AND_VERIFY_SUBTREE_DID_NOT_CHANGE(root->setContentsOpaque(true));
EXECUTE_AND_VERIFY_SUBTREE_DID_NOT_CHANGE(root->setOpacity(arbitraryNumber));
EXECUTE_AND_VERIFY_SUBTREE_DID_NOT_CHANGE(root->setDrawsContent(true));
EXECUTE_AND_VERIFY_SUBTREE_DID_NOT_CHANGE(root->setSublayerTransform(arbitraryTransform));
EXECUTE_AND_VERIFY_SUBTREE_DID_NOT_CHANGE(root->setBounds(arbitrarySize));
}
} // namespace
} // namespace cc
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