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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/trees/layer_tree_host_common.h"
#include <algorithm>
#include <set>
#include "cc/animation/keyframed_animation_curve.h"
#include "cc/animation/layer_animation_controller.h"
#include "cc/animation/transform_operations.h"
#include "cc/base/math_util.h"
#include "cc/layers/content_layer_client.h"
#include "cc/layers/layer.h"
#include "cc/layers/layer_client.h"
#include "cc/layers/layer_impl.h"
#include "cc/layers/layer_iterator.h"
#include "cc/layers/render_surface_impl.h"
#include "cc/output/copy_output_request.h"
#include "cc/output/copy_output_result.h"
#include "cc/test/animation_test_common.h"
#include "cc/test/fake_content_layer_client.h"
#include "cc/test/fake_impl_task_runner_provider.h"
#include "cc/test/fake_layer_tree_host.h"
#include "cc/test/fake_layer_tree_host_impl.h"
#include "cc/test/fake_output_surface.h"
#include "cc/test/fake_picture_layer.h"
#include "cc/test/fake_picture_layer_impl.h"
#include "cc/test/geometry_test_utils.h"
#include "cc/test/layer_tree_host_common_test.h"
#include "cc/test/test_task_graph_runner.h"
#include "cc/trees/draw_property_utils.h"
#include "cc/trees/layer_tree_impl.h"
#include "cc/trees/single_thread_proxy.h"
#include "cc/trees/task_runner_provider.h"
#include "testing/gmock/include/gmock/gmock.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "ui/gfx/geometry/quad_f.h"
#include "ui/gfx/geometry/vector2d_conversions.h"
#include "ui/gfx/transform.h"
namespace cc {
namespace {
class LayerWithForcedDrawsContent : public Layer {
public:
explicit LayerWithForcedDrawsContent(const LayerSettings& settings)
: Layer(settings) {}
bool DrawsContent() const override;
private:
~LayerWithForcedDrawsContent() override {}
};
bool LayerWithForcedDrawsContent::DrawsContent() const { return true; }
class MockContentLayerClient : public ContentLayerClient {
public:
MockContentLayerClient() {}
~MockContentLayerClient() override {}
scoped_refptr<DisplayItemList> PaintContentsToDisplayList(
const gfx::Rect& clip,
PaintingControlSetting picture_control) override {
NOTIMPLEMENTED();
return nullptr;
}
bool FillsBoundsCompletely() const override { return false; }
size_t GetApproximateUnsharedMemoryUsage() const override { return 0; }
};
#define EXPECT_CONTENTS_SCALE_EQ(expected, layer) \
do { \
EXPECT_FLOAT_EQ(expected, layer->contents_scale_x()); \
EXPECT_FLOAT_EQ(expected, layer->contents_scale_y()); \
} while (false)
#define EXPECT_IDEAL_SCALE_EQ(expected, layer) \
do { \
EXPECT_FLOAT_EQ(expected, layer->GetIdealContentsScale()); \
} while (false)
class LayerTreeSettingsScaleContent : public LayerTreeSettings {
public:
LayerTreeSettingsScaleContent() {
layer_transforms_should_scale_layer_contents = true;
}
};
class LayerTreeHostCommonScalingTest : public LayerTreeHostCommonTest {
public:
LayerTreeHostCommonScalingTest()
: LayerTreeHostCommonTest(LayerTreeSettingsScaleContent()) {}
};
TEST_F(LayerTreeHostCommonTest, TransformsForNoOpLayer) {
// Sanity check: For layers positioned at zero, with zero size,
// and with identity transforms, then the draw transform,
// screen space transform, and the hierarchy passed on to children
// layers should also be identity transforms.
scoped_refptr<Layer> parent = Layer::Create(layer_settings());
scoped_refptr<Layer> child = Layer::Create(layer_settings());
scoped_refptr<Layer> grand_child = Layer::Create(layer_settings());
parent->AddChild(child);
child->AddChild(grand_child);
host()->SetRootLayer(parent);
gfx::Transform identity_matrix;
SetLayerPropertiesForTesting(parent.get(),
identity_matrix,
gfx::Point3F(),
gfx::PointF(),
gfx::Size(100, 100),
true,
false);
SetLayerPropertiesForTesting(child.get(),
identity_matrix,
gfx::Point3F(),
gfx::PointF(),
gfx::Size(),
true,
false);
SetLayerPropertiesForTesting(grand_child.get(),
identity_matrix,
gfx::Point3F(),
gfx::PointF(),
gfx::Size(),
true,
false);
ExecuteCalculateDrawProperties(parent.get());
EXPECT_TRANSFORMATION_MATRIX_EQ(identity_matrix, child->draw_transform());
EXPECT_TRANSFORMATION_MATRIX_EQ(identity_matrix,
child->screen_space_transform());
EXPECT_TRANSFORMATION_MATRIX_EQ(identity_matrix,
grand_child->draw_transform());
EXPECT_TRANSFORMATION_MATRIX_EQ(identity_matrix,
grand_child->screen_space_transform());
}
TEST_F(LayerTreeHostCommonTest, DoNotSkipLayersWithHandlers) {
LayerImpl* parent = root_layer();
LayerImpl* child = AddChild<LayerImpl>(parent);
LayerImpl* grand_child = AddChild<LayerImpl>(child);
gfx::Transform identity_matrix;
SetLayerPropertiesForTesting(parent, identity_matrix, gfx::Point3F(),
gfx::PointF(), gfx::Size(100, 100), true, false,
true);
SetLayerPropertiesForTesting(child, identity_matrix, gfx::Point3F(),
gfx::PointF(10, 10), gfx::Size(100, 100), true,
false, false);
// This would have previously caused us to skip our subtree, but this would be
// wrong; we need up-to-date draw properties to do hit testing on the layers
// with handlers.
child->SetOpacity(0.f);
SetLayerPropertiesForTesting(grand_child, identity_matrix, gfx::Point3F(),
gfx::PointF(10, 10), gfx::Size(100, 100), true,
false, false);
grand_child->SetTouchEventHandlerRegion(gfx::Rect(0, 0, 100, 100));
ExecuteCalculateDrawProperties(parent);
// Check that we've computed draw properties for the subtree rooted at
// |child|.
EXPECT_FALSE(child->draw_transform().IsIdentity());
EXPECT_FALSE(grand_child->draw_transform().IsIdentity());
}
TEST_F(LayerTreeHostCommonTest, TransformsForSingleLayer) {
gfx::Transform identity_matrix;
scoped_refptr<Layer> layer = Layer::Create(layer_settings());
scoped_refptr<Layer> root = Layer::Create(layer_settings());
SetLayerPropertiesForTesting(root.get(), identity_matrix, gfx::Point3F(),
gfx::PointF(), gfx::Size(1, 2), true, false);
root->AddChild(layer);
host()->SetRootLayer(root);
TransformTree& tree = host()->property_trees()->transform_tree;
// Case 2: Setting the bounds of the layer should not affect either the draw
// transform or the screenspace transform.
gfx::Transform translation_to_center;
translation_to_center.Translate(5.0, 6.0);
SetLayerPropertiesForTesting(layer.get(), identity_matrix, gfx::Point3F(),
gfx::PointF(), gfx::Size(10, 12), true, false);
ExecuteCalculateDrawProperties(root.get());
EXPECT_TRANSFORMATION_MATRIX_EQ(
identity_matrix, DrawTransformFromPropertyTrees(layer.get(), tree));
EXPECT_TRANSFORMATION_MATRIX_EQ(
identity_matrix,
ScreenSpaceTransformFromPropertyTrees(layer.get(), tree));
// Case 3: The anchor point by itself (without a layer transform) should have
// no effect on the transforms.
SetLayerPropertiesForTesting(layer.get(), identity_matrix,
gfx::Point3F(2.5f, 3.0f, 0.f), gfx::PointF(),
gfx::Size(10, 12), true, false);
ExecuteCalculateDrawProperties(root.get());
EXPECT_TRANSFORMATION_MATRIX_EQ(
identity_matrix, DrawTransformFromPropertyTrees(layer.get(), tree));
EXPECT_TRANSFORMATION_MATRIX_EQ(
identity_matrix,
ScreenSpaceTransformFromPropertyTrees(layer.get(), tree));
// Case 4: A change in actual position affects both the draw transform and
// screen space transform.
gfx::Transform position_transform;
position_transform.Translate(0.f, 1.2f);
SetLayerPropertiesForTesting(
layer.get(), identity_matrix, gfx::Point3F(2.5f, 3.0f, 0.f),
gfx::PointF(0.f, 1.2f), gfx::Size(10, 12), true, false);
ExecuteCalculateDrawProperties(root.get());
EXPECT_TRANSFORMATION_MATRIX_EQ(
position_transform, DrawTransformFromPropertyTrees(layer.get(), tree));
EXPECT_TRANSFORMATION_MATRIX_EQ(
position_transform,
ScreenSpaceTransformFromPropertyTrees(layer.get(), tree));
// Case 5: In the correct sequence of transforms, the layer transform should
// pre-multiply the translation_to_center. This is easily tested by using a
// scale transform, because scale and translation are not commutative.
gfx::Transform layer_transform;
layer_transform.Scale3d(2.0, 2.0, 1.0);
SetLayerPropertiesForTesting(layer.get(), layer_transform, gfx::Point3F(),
gfx::PointF(), gfx::Size(10, 12), true, false);
ExecuteCalculateDrawProperties(root.get());
EXPECT_TRANSFORMATION_MATRIX_EQ(
layer_transform, DrawTransformFromPropertyTrees(layer.get(), tree));
EXPECT_TRANSFORMATION_MATRIX_EQ(
layer_transform,
ScreenSpaceTransformFromPropertyTrees(layer.get(), tree));
// Case 6: The layer transform should occur with respect to the anchor point.
gfx::Transform translation_to_anchor;
translation_to_anchor.Translate(5.0, 0.0);
gfx::Transform expected_result =
translation_to_anchor * layer_transform * Inverse(translation_to_anchor);
SetLayerPropertiesForTesting(layer.get(), layer_transform,
gfx::Point3F(5.0f, 0.f, 0.f), gfx::PointF(),
gfx::Size(10, 12), true, false);
ExecuteCalculateDrawProperties(root.get());
EXPECT_TRANSFORMATION_MATRIX_EQ(
expected_result, DrawTransformFromPropertyTrees(layer.get(), tree));
EXPECT_TRANSFORMATION_MATRIX_EQ(
expected_result,
ScreenSpaceTransformFromPropertyTrees(layer.get(), tree));
// Case 7: Verify that position pre-multiplies the layer transform. The
// current implementation of CalculateDrawProperties does this implicitly, but
// it is still worth testing to detect accidental regressions.
expected_result = position_transform * translation_to_anchor *
layer_transform * Inverse(translation_to_anchor);
SetLayerPropertiesForTesting(
layer.get(), layer_transform, gfx::Point3F(5.0f, 0.f, 0.f),
gfx::PointF(0.f, 1.2f), gfx::Size(10, 12), true, false);
ExecuteCalculateDrawProperties(root.get());
EXPECT_TRANSFORMATION_MATRIX_EQ(
expected_result, DrawTransformFromPropertyTrees(layer.get(), tree));
EXPECT_TRANSFORMATION_MATRIX_EQ(
expected_result,
ScreenSpaceTransformFromPropertyTrees(layer.get(), tree));
}
TEST_F(LayerTreeHostCommonTest, TransformsAboutScrollOffset) {
const gfx::ScrollOffset kScrollOffset(50, 100);
const gfx::Vector2dF kScrollDelta(2.34f, 5.67f);
const gfx::Vector2d kMaxScrollOffset(200, 200);
const gfx::PointF kScrollLayerPosition(-kScrollOffset.x(),
-kScrollOffset.y());
const float kPageScale = 0.888f;
const float kDeviceScale = 1.666f;
FakeImplTaskRunnerProvider task_runner_provider;
TestSharedBitmapManager shared_bitmap_manager;
TestTaskGraphRunner task_graph_runner;
FakeLayerTreeHostImpl host_impl(&task_runner_provider, &shared_bitmap_manager,
&task_graph_runner);
gfx::Transform identity_matrix;
scoped_ptr<LayerImpl> sublayer_scoped_ptr(
LayerImpl::Create(host_impl.active_tree(), 1));
LayerImpl* sublayer = sublayer_scoped_ptr.get();
SetLayerPropertiesForTesting(sublayer, identity_matrix, gfx::Point3F(),
gfx::PointF(), gfx::Size(500, 500), true, false,
false);
scoped_ptr<LayerImpl> scroll_layer_scoped_ptr(
LayerImpl::Create(host_impl.active_tree(), 2));
LayerImpl* scroll_layer = scroll_layer_scoped_ptr.get();
SetLayerPropertiesForTesting(scroll_layer, identity_matrix, gfx::Point3F(),
gfx::PointF(), gfx::Size(10, 20), true, false,
false);
scoped_ptr<LayerImpl> clip_layer_scoped_ptr(
LayerImpl::Create(host_impl.active_tree(), 4));
LayerImpl* clip_layer = clip_layer_scoped_ptr.get();
scroll_layer->SetScrollClipLayer(clip_layer->id());
clip_layer->SetBounds(
gfx::Size(scroll_layer->bounds().width() + kMaxScrollOffset.x(),
scroll_layer->bounds().height() + kMaxScrollOffset.y()));
scroll_layer->SetScrollClipLayer(clip_layer->id());
scroll_layer->SetScrollDelta(kScrollDelta);
gfx::Transform impl_transform;
scroll_layer->AddChild(sublayer_scoped_ptr.Pass());
LayerImpl* scroll_layer_raw_ptr = scroll_layer_scoped_ptr.get();
clip_layer->AddChild(scroll_layer_scoped_ptr.Pass());
scroll_layer_raw_ptr->PushScrollOffsetFromMainThread(kScrollOffset);
scoped_ptr<LayerImpl> root(LayerImpl::Create(host_impl.active_tree(), 3));
SetLayerPropertiesForTesting(root.get(), identity_matrix, gfx::Point3F(),
gfx::PointF(), gfx::Size(3, 4), true, false,
false);
root->AddChild(clip_layer_scoped_ptr.Pass());
root->SetHasRenderSurface(true);
ExecuteCalculateDrawProperties(
root.get(), kDeviceScale, kPageScale, scroll_layer->parent());
gfx::Transform expected_transform = identity_matrix;
gfx::PointF sub_layer_screen_position = kScrollLayerPosition - kScrollDelta;
expected_transform.Translate(MathUtil::Round(sub_layer_screen_position.x() *
kPageScale * kDeviceScale),
MathUtil::Round(sub_layer_screen_position.y() *
kPageScale * kDeviceScale));
expected_transform.Scale(kPageScale * kDeviceScale,
kPageScale * kDeviceScale);
EXPECT_TRANSFORMATION_MATRIX_EQ(expected_transform,
sublayer->draw_transform());
EXPECT_TRANSFORMATION_MATRIX_EQ(expected_transform,
sublayer->screen_space_transform());
gfx::Transform arbitrary_translate;
const float kTranslateX = 10.6f;
const float kTranslateY = 20.6f;
arbitrary_translate.Translate(kTranslateX, kTranslateY);
SetLayerPropertiesForTesting(scroll_layer, arbitrary_translate,
gfx::Point3F(), gfx::PointF(), gfx::Size(10, 20),
true, false, false);
ExecuteCalculateDrawProperties(
root.get(), kDeviceScale, kPageScale, scroll_layer->parent());
expected_transform.MakeIdentity();
expected_transform.Translate(
MathUtil::Round(kTranslateX * kPageScale * kDeviceScale +
sub_layer_screen_position.x() * kPageScale *
kDeviceScale),
MathUtil::Round(kTranslateY * kPageScale * kDeviceScale +
sub_layer_screen_position.y() * kPageScale *
kDeviceScale));
expected_transform.Scale(kPageScale * kDeviceScale,
kPageScale * kDeviceScale);
EXPECT_TRANSFORMATION_MATRIX_EQ(expected_transform,
sublayer->draw_transform());
}
TEST_F(LayerTreeHostCommonTest, TransformsForSimpleHierarchy) {
gfx::Transform identity_matrix;
scoped_refptr<Layer> root = Layer::Create(layer_settings());
scoped_refptr<Layer> parent = Layer::Create(layer_settings());
scoped_refptr<Layer> child = Layer::Create(layer_settings());
scoped_refptr<Layer> grand_child = Layer::Create(layer_settings());
root->AddChild(parent);
parent->AddChild(child);
child->AddChild(grand_child);
host()->SetRootLayer(root);
// One-time setup of root layer
SetLayerPropertiesForTesting(root.get(), identity_matrix, gfx::Point3F(),
gfx::PointF(), gfx::Size(1, 2), true, false);
TransformTree& tree = host()->property_trees()->transform_tree;
// Case 1: parent's anchor point should not affect child or grand_child.
SetLayerPropertiesForTesting(parent.get(), identity_matrix,
gfx::Point3F(2.5f, 3.0f, 0.f), gfx::PointF(),
gfx::Size(10, 12), true, false);
SetLayerPropertiesForTesting(child.get(), identity_matrix, gfx::Point3F(),
gfx::PointF(), gfx::Size(16, 18), true, false);
SetLayerPropertiesForTesting(grand_child.get(), identity_matrix,
gfx::Point3F(), gfx::PointF(), gfx::Size(76, 78),
true, false);
ExecuteCalculateDrawProperties(root.get());
EXPECT_TRANSFORMATION_MATRIX_EQ(
identity_matrix, DrawTransformFromPropertyTrees(child.get(), tree));
EXPECT_TRANSFORMATION_MATRIX_EQ(
identity_matrix,
ScreenSpaceTransformFromPropertyTrees(child.get(), tree));
EXPECT_TRANSFORMATION_MATRIX_EQ(
identity_matrix, DrawTransformFromPropertyTrees(grand_child.get(), tree));
EXPECT_TRANSFORMATION_MATRIX_EQ(
identity_matrix,
ScreenSpaceTransformFromPropertyTrees(grand_child.get(), tree));
// Case 2: parent's position affects child and grand_child.
gfx::Transform parent_position_transform;
parent_position_transform.Translate(0.f, 1.2f);
SetLayerPropertiesForTesting(
parent.get(), identity_matrix, gfx::Point3F(2.5f, 3.0f, 0.f),
gfx::PointF(0.f, 1.2f), gfx::Size(10, 12), true, false);
SetLayerPropertiesForTesting(child.get(), identity_matrix, gfx::Point3F(),
gfx::PointF(), gfx::Size(16, 18), true, false);
SetLayerPropertiesForTesting(grand_child.get(), identity_matrix,
gfx::Point3F(), gfx::PointF(), gfx::Size(76, 78),
true, false);
ExecuteCalculateDrawProperties(root.get());
EXPECT_TRANSFORMATION_MATRIX_EQ(
parent_position_transform,
DrawTransformFromPropertyTrees(child.get(), tree));
EXPECT_TRANSFORMATION_MATRIX_EQ(
parent_position_transform,
ScreenSpaceTransformFromPropertyTrees(child.get(), tree));
EXPECT_TRANSFORMATION_MATRIX_EQ(
parent_position_transform,
DrawTransformFromPropertyTrees(grand_child.get(), tree));
EXPECT_TRANSFORMATION_MATRIX_EQ(
parent_position_transform,
ScreenSpaceTransformFromPropertyTrees(grand_child.get(), tree));
// Case 3: parent's local transform affects child and grandchild
gfx::Transform parent_layer_transform;
parent_layer_transform.Scale3d(2.0, 2.0, 1.0);
gfx::Transform parent_translation_to_anchor;
parent_translation_to_anchor.Translate(2.5, 3.0);
gfx::Transform parent_composite_transform =
parent_translation_to_anchor * parent_layer_transform *
Inverse(parent_translation_to_anchor);
SetLayerPropertiesForTesting(parent.get(), parent_layer_transform,
gfx::Point3F(2.5f, 3.0f, 0.f), gfx::PointF(),
gfx::Size(10, 12), true, false);
SetLayerPropertiesForTesting(child.get(), identity_matrix, gfx::Point3F(),
gfx::PointF(), gfx::Size(16, 18), true, false);
SetLayerPropertiesForTesting(grand_child.get(), identity_matrix,
gfx::Point3F(), gfx::PointF(), gfx::Size(76, 78),
true, false);
ExecuteCalculateDrawProperties(root.get());
EXPECT_TRANSFORMATION_MATRIX_EQ(
parent_composite_transform,
DrawTransformFromPropertyTrees(child.get(), tree));
EXPECT_TRANSFORMATION_MATRIX_EQ(
parent_composite_transform,
ScreenSpaceTransformFromPropertyTrees(child.get(), tree));
EXPECT_TRANSFORMATION_MATRIX_EQ(
parent_composite_transform,
DrawTransformFromPropertyTrees(grand_child.get(), tree));
EXPECT_TRANSFORMATION_MATRIX_EQ(
parent_composite_transform,
ScreenSpaceTransformFromPropertyTrees(grand_child.get(), tree));
}
TEST_F(LayerTreeHostCommonTest, TransformsForSingleRenderSurface) {
LayerImpl* root = root_layer();
LayerImpl* parent = AddChildToRoot<LayerImpl>();
LayerImpl* child = AddChild<LayerImpl>(parent);
LayerImpl* grand_child = AddChild<LayerImpl>(child);
grand_child->SetDrawsContent(true);
gfx::Transform identity_matrix;
SetLayerPropertiesForTesting(root, identity_matrix, gfx::Point3F(),
gfx::PointF(), gfx::Size(1, 2), true, false,
true);
// Child is set up so that a new render surface should be created.
child->SetOpacity(0.5f);
gfx::Transform parent_layer_transform;
parent_layer_transform.Scale3d(1.f, 0.9f, 1.f);
gfx::Transform parent_translation_to_anchor;
parent_translation_to_anchor.Translate(25.0, 30.0);
gfx::Transform parent_composite_transform =
parent_translation_to_anchor * parent_layer_transform *
Inverse(parent_translation_to_anchor);
gfx::Vector2dF parent_composite_scale =
MathUtil::ComputeTransform2dScaleComponents(parent_composite_transform,
1.f);
gfx::Transform surface_sublayer_transform;
surface_sublayer_transform.Scale(parent_composite_scale.x(),
parent_composite_scale.y());
gfx::Transform surface_sublayer_composite_transform =
parent_composite_transform * Inverse(surface_sublayer_transform);
SetLayerPropertiesForTesting(parent, parent_layer_transform,
gfx::Point3F(25.0f, 30.0f, 0.f), gfx::PointF(),
gfx::Size(100, 120), true, false, false);
SetLayerPropertiesForTesting(child, identity_matrix, gfx::Point3F(),
gfx::PointF(), gfx::Size(16, 18), true, false,
true);
SetLayerPropertiesForTesting(grand_child, identity_matrix, gfx::Point3F(),
gfx::PointF(), gfx::Size(8, 10), true, false,
false);
ExecuteCalculateDrawProperties(root);
// Render surface should have been created now.
ASSERT_TRUE(child->render_surface());
ASSERT_EQ(child, child->render_target());
// The child layer's draw transform should refer to its new render surface.
// The screen-space transform, however, should still refer to the root.
EXPECT_TRANSFORMATION_MATRIX_EQ(surface_sublayer_transform,
child->draw_transform());
EXPECT_TRANSFORMATION_MATRIX_EQ(parent_composite_transform,
child->screen_space_transform());
// Because the grand_child is the only drawable content, the child's render
// surface will tighten its bounds to the grand_child. The scale at which the
// surface's subtree is drawn must be removed from the composite transform.
EXPECT_TRANSFORMATION_MATRIX_EQ(
surface_sublayer_composite_transform,
child->render_target()->render_surface()->draw_transform());
// The screen space is the same as the target since the child surface draws
// into the root.
EXPECT_TRANSFORMATION_MATRIX_EQ(
surface_sublayer_composite_transform,
child->render_target()->render_surface()->screen_space_transform());
}
TEST_F(LayerTreeHostCommonTest, TransformsWhenCannotRenderToSeparateSurface) {
LayerImpl* root = root_layer();
LayerImpl* parent = AddChildToRoot<LayerImpl>();
LayerImpl* child = AddChild<LayerImpl>(parent);
LayerImpl* grand_child = AddChild<LayerImpl>(child);
grand_child->SetDrawsContent(true);
gfx::Transform identity_matrix;
SetLayerPropertiesForTesting(root, identity_matrix, gfx::Point3F(),
gfx::PointF(), gfx::Size(100, 100), true, false,
true);
gfx::Transform parent_transform;
parent_transform.Translate(10.0, 10.0);
gfx::Transform child_transform;
child_transform.Rotate(45.0);
// child gets a render surface when surfaces are enabled.
SetLayerPropertiesForTesting(parent, parent_transform, gfx::Point3F(),
gfx::PointF(), gfx::Size(10, 10), true, false,
false);
SetLayerPropertiesForTesting(child, child_transform, gfx::Point3F(),
gfx::PointF(), gfx::Size(10, 10), true, false,
true);
SetLayerPropertiesForTesting(grand_child, identity_matrix, gfx::Point3F(),
gfx::PointF(2.0, 2.0), gfx::Size(20, 20), true,
false, false);
gfx::Transform expected_grand_child_screen_space_transform;
expected_grand_child_screen_space_transform.Translate(10.0, 10.0);
expected_grand_child_screen_space_transform.Rotate(45.0);
expected_grand_child_screen_space_transform.Translate(2.0, 2.0);
// First compute draw properties with separate surfaces enabled.
ExecuteCalculateDrawProperties(root);
// The grand child's draw transform should be its offset wrt the child.
gfx::Transform expected_grand_child_draw_transform;
expected_grand_child_draw_transform.Translate(2.0, 2.0);
EXPECT_TRANSFORMATION_MATRIX_EQ(expected_grand_child_draw_transform,
grand_child->draw_transform());
EXPECT_TRANSFORMATION_MATRIX_EQ(expected_grand_child_screen_space_transform,
grand_child->screen_space_transform());
ExecuteCalculateDrawPropertiesWithoutSeparateSurfaces(root);
// With separate surfaces disabled, the grand child's draw transform should be
// the same as its screen space transform.
EXPECT_TRANSFORMATION_MATRIX_EQ(expected_grand_child_screen_space_transform,
grand_child->draw_transform());
EXPECT_TRANSFORMATION_MATRIX_EQ(expected_grand_child_screen_space_transform,
grand_child->screen_space_transform());
}
TEST_F(LayerTreeHostCommonTest, TransformsForReplica) {
LayerImpl* root = root_layer();
LayerImpl* parent = AddChildToRoot<LayerImpl>();
LayerImpl* child = AddChild<LayerImpl>(parent);
LayerImpl* grand_child = AddChild<LayerImpl>(child);
grand_child->SetDrawsContent(true);
scoped_ptr<LayerImpl> child_replica =
LayerImpl::Create(host_impl()->active_tree(), 100);
// One-time setup of root layer
gfx::Transform identity_matrix;
SetLayerPropertiesForTesting(root, identity_matrix, gfx::Point3F(),
gfx::PointF(), gfx::Size(1, 2), true, false,
true);
// Child is set up so that a new render surface should be created.
child->SetOpacity(0.5f);
gfx::Transform parent_layer_transform;
parent_layer_transform.Scale3d(2.0, 2.0, 1.0);
gfx::Transform parent_translation_to_anchor;
parent_translation_to_anchor.Translate(2.5, 3.0);
gfx::Transform parent_composite_transform =
parent_translation_to_anchor * parent_layer_transform *
Inverse(parent_translation_to_anchor);
gfx::Transform replica_layer_transform;
replica_layer_transform.Scale3d(3.0, 3.0, 1.0);
gfx::Vector2dF parent_composite_scale =
MathUtil::ComputeTransform2dScaleComponents(parent_composite_transform,
1.f);
gfx::Transform surface_sublayer_transform;
surface_sublayer_transform.Scale(parent_composite_scale.x(),
parent_composite_scale.y());
gfx::Transform replica_composite_transform =
parent_composite_transform * replica_layer_transform *
Inverse(surface_sublayer_transform);
child_replica->SetDrawsContent(true);
// Child's render surface should not exist yet.
ASSERT_FALSE(child->render_surface());
SetLayerPropertiesForTesting(parent, parent_layer_transform,
gfx::Point3F(2.5f, 3.0f, 0.f), gfx::PointF(),
gfx::Size(10, 12), true, false, false);
SetLayerPropertiesForTesting(child, identity_matrix, gfx::Point3F(),
gfx::PointF(), gfx::Size(16, 18), true, false,
true);
SetLayerPropertiesForTesting(grand_child, identity_matrix, gfx::Point3F(),
gfx::PointF(-0.5f, -0.5f), gfx::Size(1, 1), true,
false, false);
SetLayerPropertiesForTesting(child_replica.get(), replica_layer_transform,
gfx::Point3F(), gfx::PointF(), gfx::Size(), true,
false, false);
child->SetReplicaLayer(child_replica.Pass());
ExecuteCalculateDrawProperties(root);
// Render surface should have been created now.
ASSERT_TRUE(child->render_surface());
ASSERT_EQ(child, child->render_target());
EXPECT_TRANSFORMATION_MATRIX_EQ(
replica_composite_transform,
child->render_target()->render_surface()->replica_draw_transform());
EXPECT_TRANSFORMATION_MATRIX_EQ(replica_composite_transform,
child->render_target()
->render_surface()
->replica_screen_space_transform());
}
TEST_F(LayerTreeHostCommonTest, TransformsForRenderSurfaceHierarchy) {
// This test creates a more complex tree and verifies it all at once. This
// covers the following cases:
// - layers that are described w.r.t. a render surface: should have draw
// transforms described w.r.t. that surface
// - A render surface described w.r.t. an ancestor render surface: should
// have a draw transform described w.r.t. that ancestor surface
// - Replicas of a render surface are described w.r.t. the replica's
// transform around its anchor, along with the surface itself.
// - Sanity check on recursion: verify transforms of layers described w.r.t.
// a render surface that is described w.r.t. an ancestor render surface.
// - verifying that each layer has a reference to the correct render surface
// and render target values.
LayerImpl* root = root_layer();
LayerImpl* parent = AddChildToRoot<LayerImpl>();
LayerImpl* render_surface1 = AddChild<LayerImpl>(parent);
LayerImpl* render_surface2 = AddChild<LayerImpl>(render_surface1);
LayerImpl* child_of_root = AddChild<LayerImpl>(parent);
LayerImpl* child_of_rs1 = AddChild<LayerImpl>(render_surface1);
LayerImpl* child_of_rs2 = AddChild<LayerImpl>(render_surface2);
LayerImpl* grand_child_of_root = AddChild<LayerImpl>(child_of_root);
LayerImpl* grand_child_of_rs1 = AddChild<LayerImpl>(child_of_rs1);
grand_child_of_rs1->SetDrawsContent(true);
LayerImpl* grand_child_of_rs2 = AddChild<LayerImpl>(child_of_rs2);
grand_child_of_rs2->SetDrawsContent(true);
scoped_ptr<LayerImpl> replica_of_rs1 =
LayerImpl::Create(host_impl()->active_tree(), 101);
scoped_ptr<LayerImpl> replica_of_rs2 =
LayerImpl::Create(host_impl()->active_tree(), 102);
// In combination with descendant draws content, opacity != 1 forces the layer
// to have a new render surface.
render_surface1->SetOpacity(0.5f);
render_surface2->SetOpacity(0.33f);
// One-time setup of root layer
gfx::Transform identity_matrix;
SetLayerPropertiesForTesting(root, identity_matrix, gfx::Point3F(),
gfx::PointF(), gfx::Size(1, 2), true, false,
true);
// All layers in the tree are initialized with an anchor at .25 and a size of
// (10,10). matrix "A" is the composite layer transform used in all layers,
// Matrix "R" is the composite replica transform used in all replica layers.
gfx::Transform translation_to_anchor;
translation_to_anchor.Translate(2.5, 0.0);
gfx::Transform layer_transform;
layer_transform.Translate(1.0, 1.0);
gfx::Transform replica_layer_transform;
replica_layer_transform.Scale3d(-2.0, 5.0, 1.0);
gfx::Transform A =
translation_to_anchor * layer_transform * Inverse(translation_to_anchor);
gfx::Transform R = A * translation_to_anchor * replica_layer_transform *
Inverse(translation_to_anchor);
gfx::Vector2dF surface1_parent_transform_scale =
MathUtil::ComputeTransform2dScaleComponents(A, 1.f);
gfx::Transform surface1_sublayer_transform;
surface1_sublayer_transform.Scale(surface1_parent_transform_scale.x(),
surface1_parent_transform_scale.y());
// SS1 = transform given to the subtree of render_surface1
gfx::Transform SS1 = surface1_sublayer_transform;
// S1 = transform to move from render_surface1 pixels to the layer space of
// the owning layer
gfx::Transform S1 = Inverse(surface1_sublayer_transform);
gfx::Vector2dF surface2_parent_transform_scale =
MathUtil::ComputeTransform2dScaleComponents(SS1 * A, 1.f);
gfx::Transform surface2_sublayer_transform;
surface2_sublayer_transform.Scale(surface2_parent_transform_scale.x(),
surface2_parent_transform_scale.y());
// SS2 = transform given to the subtree of render_surface2
gfx::Transform SS2 = surface2_sublayer_transform;
// S2 = transform to move from render_surface2 pixels to the layer space of
// the owning layer
gfx::Transform S2 = Inverse(surface2_sublayer_transform);
SetLayerPropertiesForTesting(parent, layer_transform,
gfx::Point3F(2.5f, 0.f, 0.f), gfx::PointF(),
gfx::Size(10, 10), true, false, false);
SetLayerPropertiesForTesting(render_surface1, layer_transform,
gfx::Point3F(2.5f, 0.f, 0.f), gfx::PointF(),
gfx::Size(10, 10), true, false, true);
SetLayerPropertiesForTesting(render_surface2, layer_transform,
gfx::Point3F(2.5f, 0.f, 0.f), gfx::PointF(),
gfx::Size(10, 10), true, false, true);
SetLayerPropertiesForTesting(child_of_root, layer_transform,
gfx::Point3F(2.5f, 0.f, 0.f), gfx::PointF(),
gfx::Size(10, 10), true, false, false);
SetLayerPropertiesForTesting(child_of_rs1, layer_transform,
gfx::Point3F(2.5f, 0.f, 0.f), gfx::PointF(),
gfx::Size(10, 10), true, false, false);
SetLayerPropertiesForTesting(child_of_rs2, layer_transform,
gfx::Point3F(2.5f, 0.f, 0.f), gfx::PointF(),
gfx::Size(10, 10), true, false, false);
SetLayerPropertiesForTesting(grand_child_of_root, layer_transform,
gfx::Point3F(2.5f, 0.f, 0.f), gfx::PointF(),
gfx::Size(10, 10), true, false, false);
SetLayerPropertiesForTesting(grand_child_of_rs1, layer_transform,
gfx::Point3F(2.5f, 0.f, 0.f), gfx::PointF(),
gfx::Size(10, 10), true, false, false);
SetLayerPropertiesForTesting(grand_child_of_rs2, layer_transform,
gfx::Point3F(2.5f, 0.f, 0.f), gfx::PointF(),
gfx::Size(10, 10), true, false, false);
SetLayerPropertiesForTesting(replica_of_rs1.get(), replica_layer_transform,
gfx::Point3F(2.5f, 0.f, 0.f), gfx::PointF(),
gfx::Size(), true, false, false);
SetLayerPropertiesForTesting(replica_of_rs2.get(), replica_layer_transform,
gfx::Point3F(2.5f, 0.f, 0.f), gfx::PointF(),
gfx::Size(), true, false, false);
render_surface1->SetReplicaLayer(replica_of_rs1.Pass());
render_surface2->SetReplicaLayer(replica_of_rs2.Pass());
ExecuteCalculateDrawProperties(root);
// Only layers that are associated with render surfaces should have an actual
// RenderSurface() value.
ASSERT_TRUE(root->render_surface());
ASSERT_FALSE(child_of_root->render_surface());
ASSERT_FALSE(grand_child_of_root->render_surface());
ASSERT_TRUE(render_surface1->render_surface());
ASSERT_FALSE(child_of_rs1->render_surface());
ASSERT_FALSE(grand_child_of_rs1->render_surface());
ASSERT_TRUE(render_surface2->render_surface());
ASSERT_FALSE(child_of_rs2->render_surface());
ASSERT_FALSE(grand_child_of_rs2->render_surface());
// Verify all render target accessors
EXPECT_EQ(root, parent->render_target());
EXPECT_EQ(root, child_of_root->render_target());
EXPECT_EQ(root, grand_child_of_root->render_target());
EXPECT_EQ(render_surface1, render_surface1->render_target());
EXPECT_EQ(render_surface1, child_of_rs1->render_target());
EXPECT_EQ(render_surface1, grand_child_of_rs1->render_target());
EXPECT_EQ(render_surface2, render_surface2->render_target());
EXPECT_EQ(render_surface2, child_of_rs2->render_target());
EXPECT_EQ(render_surface2, grand_child_of_rs2->render_target());
// Verify layer draw transforms note that draw transforms are described with
// respect to the nearest ancestor render surface but screen space transforms
// are described with respect to the root.
EXPECT_TRANSFORMATION_MATRIX_EQ(A, parent->draw_transform());
EXPECT_TRANSFORMATION_MATRIX_EQ(A * A, child_of_root->draw_transform());
EXPECT_TRANSFORMATION_MATRIX_EQ(A * A * A,
grand_child_of_root->draw_transform());
EXPECT_TRANSFORMATION_MATRIX_EQ(SS1, render_surface1->draw_transform());
EXPECT_TRANSFORMATION_MATRIX_EQ(SS1 * A, child_of_rs1->draw_transform());
EXPECT_TRANSFORMATION_MATRIX_EQ(SS1 * A * A,
grand_child_of_rs1->draw_transform());
EXPECT_TRANSFORMATION_MATRIX_EQ(SS2, render_surface2->draw_transform());
EXPECT_TRANSFORMATION_MATRIX_EQ(SS2 * A, child_of_rs2->draw_transform());
EXPECT_TRANSFORMATION_MATRIX_EQ(SS2 * A * A,
grand_child_of_rs2->draw_transform());
// Verify layer screen-space transforms
//
EXPECT_TRANSFORMATION_MATRIX_EQ(A, parent->screen_space_transform());
EXPECT_TRANSFORMATION_MATRIX_EQ(A * A,
child_of_root->screen_space_transform());
EXPECT_TRANSFORMATION_MATRIX_EQ(
A * A * A, grand_child_of_root->screen_space_transform());
EXPECT_TRANSFORMATION_MATRIX_EQ(A * A,
render_surface1->screen_space_transform());
EXPECT_TRANSFORMATION_MATRIX_EQ(A * A * A,
child_of_rs1->screen_space_transform());
EXPECT_TRANSFORMATION_MATRIX_EQ(A * A * A * A,
grand_child_of_rs1->screen_space_transform());
EXPECT_TRANSFORMATION_MATRIX_EQ(A * A * A,
render_surface2->screen_space_transform());
EXPECT_TRANSFORMATION_MATRIX_EQ(A * A * A * A,
child_of_rs2->screen_space_transform());
EXPECT_TRANSFORMATION_MATRIX_EQ(A * A * A * A * A,
grand_child_of_rs2->screen_space_transform());
// Verify render surface transforms.
//
// Draw transform of render surface 1 is described with respect to root.
EXPECT_TRANSFORMATION_MATRIX_EQ(
A * A * S1, render_surface1->render_surface()->draw_transform());
EXPECT_TRANSFORMATION_MATRIX_EQ(
A * R * S1, render_surface1->render_surface()->replica_draw_transform());
EXPECT_TRANSFORMATION_MATRIX_EQ(
A * A * S1, render_surface1->render_surface()->screen_space_transform());
EXPECT_TRANSFORMATION_MATRIX_EQ(
A * R * S1,
render_surface1->render_surface()->replica_screen_space_transform());
// Draw transform of render surface 2 is described with respect to render
// surface 1.
EXPECT_TRANSFORMATION_MATRIX_EQ(
SS1 * A * S2, render_surface2->render_surface()->draw_transform());
EXPECT_TRANSFORMATION_MATRIX_EQ(
SS1 * R * S2,
render_surface2->render_surface()->replica_draw_transform());
EXPECT_TRANSFORMATION_MATRIX_EQ(
A * A * A * S2,
render_surface2->render_surface()->screen_space_transform());
EXPECT_TRANSFORMATION_MATRIX_EQ(
A * A * R * S2,
render_surface2->render_surface()->replica_screen_space_transform());
// Sanity check. If these fail there is probably a bug in the test itself. It
// is expected that we correctly set up transforms so that the y-component of
// the screen-space transform encodes the "depth" of the layer in the tree.
EXPECT_FLOAT_EQ(1.0, parent->screen_space_transform().matrix().get(1, 3));
EXPECT_FLOAT_EQ(2.0,
child_of_root->screen_space_transform().matrix().get(1, 3));
EXPECT_FLOAT_EQ(
3.0, grand_child_of_root->screen_space_transform().matrix().get(1, 3));
EXPECT_FLOAT_EQ(2.0,
render_surface1->screen_space_transform().matrix().get(1, 3));
EXPECT_FLOAT_EQ(3.0,
child_of_rs1->screen_space_transform().matrix().get(1, 3));
EXPECT_FLOAT_EQ(
4.0, grand_child_of_rs1->screen_space_transform().matrix().get(1, 3));
EXPECT_FLOAT_EQ(3.0,
render_surface2->screen_space_transform().matrix().get(1, 3));
EXPECT_FLOAT_EQ(4.0,
child_of_rs2->screen_space_transform().matrix().get(1, 3));
EXPECT_FLOAT_EQ(
5.0, grand_child_of_rs2->screen_space_transform().matrix().get(1, 3));
}
TEST_F(LayerTreeHostCommonTest, TransformsForFlatteningLayer) {
// For layers that flatten their subtree, there should be an orthographic
// projection (for x and y values) in the middle of the transform sequence.
// Note that the way the code is currently implemented, it is not expected to
// use a canonical orthographic projection.
LayerImpl* root = root_layer();
LayerImpl* child = AddChildToRoot<LayerImpl>();
LayerImpl* grand_child = AddChild<LayerImpl>(child);
grand_child->SetDrawsContent(true);
LayerImpl* great_grand_child = AddChild<LayerImpl>(grand_child);
great_grand_child->SetDrawsContent(true);
gfx::Transform rotation_about_y_axis;
rotation_about_y_axis.RotateAboutYAxis(30.0);
const gfx::Transform identity_matrix;
SetLayerPropertiesForTesting(root, identity_matrix, gfx::Point3F(),
gfx::PointF(), gfx::Size(100, 100), true, false,
true);
SetLayerPropertiesForTesting(child, rotation_about_y_axis, gfx::Point3F(),
gfx::PointF(), gfx::Size(10, 10), true, false,
true);
SetLayerPropertiesForTesting(grand_child, rotation_about_y_axis,
gfx::Point3F(), gfx::PointF(), gfx::Size(10, 10),
true, false, false);
SetLayerPropertiesForTesting(great_grand_child, identity_matrix,
gfx::Point3F(), gfx::PointF(), gfx::Size(10, 10),
true, false, false);
// No layers in this test should preserve 3d.
ASSERT_TRUE(root->should_flatten_transform());
ASSERT_TRUE(child->should_flatten_transform());
ASSERT_TRUE(grand_child->should_flatten_transform());
ASSERT_TRUE(great_grand_child->should_flatten_transform());
gfx::Transform expected_child_draw_transform = rotation_about_y_axis;
gfx::Transform expected_child_screen_space_transform = rotation_about_y_axis;
gfx::Transform expected_grand_child_draw_transform =
rotation_about_y_axis; // draws onto child's render surface
gfx::Transform flattened_rotation_about_y = rotation_about_y_axis;
flattened_rotation_about_y.FlattenTo2d();
gfx::Transform expected_grand_child_screen_space_transform =
flattened_rotation_about_y * rotation_about_y_axis;
gfx::Transform expected_great_grand_child_draw_transform =
flattened_rotation_about_y;
gfx::Transform expected_great_grand_child_screen_space_transform =
flattened_rotation_about_y * flattened_rotation_about_y;
ExecuteCalculateDrawProperties(root);
// The child's draw transform should have been taken by its surface.
ASSERT_TRUE(child->render_surface());
EXPECT_TRANSFORMATION_MATRIX_EQ(expected_child_draw_transform,
child->render_surface()->draw_transform());
EXPECT_TRANSFORMATION_MATRIX_EQ(
expected_child_screen_space_transform,
child->render_surface()->screen_space_transform());
EXPECT_TRANSFORMATION_MATRIX_EQ(identity_matrix, child->draw_transform());
EXPECT_TRANSFORMATION_MATRIX_EQ(expected_child_screen_space_transform,
child->screen_space_transform());
EXPECT_TRANSFORMATION_MATRIX_EQ(expected_grand_child_draw_transform,
grand_child->draw_transform());
EXPECT_TRANSFORMATION_MATRIX_EQ(expected_grand_child_screen_space_transform,
grand_child->screen_space_transform());
EXPECT_TRANSFORMATION_MATRIX_EQ(expected_great_grand_child_draw_transform,
great_grand_child->draw_transform());
EXPECT_TRANSFORMATION_MATRIX_EQ(
expected_great_grand_child_screen_space_transform,
great_grand_child->screen_space_transform());
}
TEST_F(LayerTreeHostCommonTest, LayerFullyContainedWithinClipInTargetSpace) {
scoped_refptr<Layer> root = Layer::Create(layer_settings());
scoped_refptr<Layer> child = Layer::Create(layer_settings());
scoped_refptr<LayerWithForcedDrawsContent> grand_child =
make_scoped_refptr(new LayerWithForcedDrawsContent(layer_settings()));
gfx::Transform child_transform;
child_transform.Translate(50.0, 50.0);
child_transform.RotateAboutZAxis(30.0);
gfx::Transform grand_child_transform;
grand_child_transform.RotateAboutYAxis(90.0);
const gfx::Transform identity_matrix;
SetLayerPropertiesForTesting(root.get(), identity_matrix, gfx::Point3F(),
gfx::PointF(), gfx::Size(200, 200), true, false);
SetLayerPropertiesForTesting(child.get(), child_transform, gfx::Point3F(),
gfx::PointF(), gfx::Size(10, 10), true, false);
SetLayerPropertiesForTesting(grand_child.get(), grand_child_transform,
gfx::Point3F(), gfx::PointF(),
gfx::Size(100, 100), true, false);
root->AddChild(child);
child->AddChild(grand_child);
grand_child->SetShouldFlattenTransform(false);
host()->SetRootLayer(root);
ExecuteCalculateDrawPropertiesWithPropertyTrees(root.get());
// Mapping grand_child's bounds to target space produces a non-empty rect
// that is fully contained within the target's bounds, so grand_child should
// be considered fully visible.
EXPECT_EQ(gfx::Rect(grand_child->bounds()),
grand_child->visible_rect_from_property_trees());
}
TEST_F(LayerTreeHostCommonTest, TransformsForDegenerateIntermediateLayer) {
// A layer that is empty in one axis, but not the other, was accidentally
// skipping a necessary translation. Without that translation, the coordinate
// space of the layer's draw transform is incorrect.
//
// Normally this isn't a problem, because the layer wouldn't be drawn anyway,
// but if that layer becomes a render surface, then its draw transform is
// implicitly inherited by the rest of the subtree, which then is positioned
// incorrectly as a result.
LayerImpl* root = root_layer();
LayerImpl* child = AddChild<LayerImpl>(root);
LayerImpl* grand_child = AddChild<LayerImpl>(child);
grand_child->SetDrawsContent(true);
// The child height is zero, but has non-zero width that should be accounted
// for while computing draw transforms.
const gfx::Transform identity_matrix;
SetLayerPropertiesForTesting(root, identity_matrix, gfx::Point3F(),
gfx::PointF(), gfx::Size(100, 100), true, false,
true);
SetLayerPropertiesForTesting(child, identity_matrix, gfx::Point3F(),
gfx::PointF(), gfx::Size(10, 0), true, false,
true);
SetLayerPropertiesForTesting(grand_child, identity_matrix, gfx::Point3F(),
gfx::PointF(), gfx::Size(10, 10), true, false,
false);
ExecuteCalculateDrawProperties(root);
ASSERT_TRUE(child->has_render_surface());
// This is the real test, the rest are sanity checks.
EXPECT_TRANSFORMATION_MATRIX_EQ(identity_matrix,
child->render_surface()->draw_transform());
EXPECT_TRANSFORMATION_MATRIX_EQ(identity_matrix, child->draw_transform());
EXPECT_TRANSFORMATION_MATRIX_EQ(identity_matrix,
grand_child->draw_transform());
}
TEST_F(LayerTreeHostCommonTest, TransformAboveRootLayer) {
// Transformations applied at the root of the tree should be forwarded
// to child layers instead of applied to the root RenderSurface.
const gfx::Transform identity_matrix;
LayerImpl* root = root_layer();
root->SetDrawsContent(true);
LayerImpl* child = AddChild<LayerImpl>(root);
child->SetDrawsContent(true);
child->SetScrollClipLayer(root->id());
SetLayerPropertiesForTesting(root, identity_matrix, gfx::Point3F(),
gfx::PointF(), gfx::Size(20, 20), true, false,
true);
SetLayerPropertiesForTesting(child, identity_matrix, gfx::Point3F(),
gfx::PointF(), gfx::Size(20, 20), true, false,
false);
gfx::Transform translate;
translate.Translate(50, 50);
{
LayerImplList render_surface_layer_list_impl;
LayerTreeHostCommon::CalcDrawPropsImplInputsForTesting inputs(
root, root->bounds(), translate, &render_surface_layer_list_impl);
inputs.property_trees->needs_rebuild = true;
LayerTreeHostCommon::CalculateDrawProperties(&inputs);
EXPECT_EQ(translate, root->draw_properties().target_space_transform);
EXPECT_EQ(translate, child->draw_properties().target_space_transform);
EXPECT_EQ(identity_matrix, root->render_surface()->draw_transform());
}
gfx::Transform scale;
scale.Scale(2, 2);
{
LayerImplList render_surface_layer_list_impl;
LayerTreeHostCommon::CalcDrawPropsImplInputsForTesting inputs(
root, root->bounds(), scale, &render_surface_layer_list_impl);
inputs.property_trees->needs_rebuild = true;
LayerTreeHostCommon::CalculateDrawProperties(&inputs);
EXPECT_EQ(scale, root->draw_properties().target_space_transform);
EXPECT_EQ(scale, child->draw_properties().target_space_transform);
EXPECT_EQ(identity_matrix, root->render_surface()->draw_transform());
}
gfx::Transform rotate;
rotate.Rotate(2);
{
LayerImplList render_surface_layer_list_impl;
LayerTreeHostCommon::CalcDrawPropsImplInputsForTesting inputs(
root, root->bounds(), rotate, &render_surface_layer_list_impl);
inputs.property_trees->needs_rebuild = true;
LayerTreeHostCommon::CalculateDrawProperties(&inputs);
EXPECT_EQ(rotate, root->draw_properties().target_space_transform);
EXPECT_EQ(rotate, child->draw_properties().target_space_transform);
EXPECT_EQ(identity_matrix, root->render_surface()->draw_transform());
}
gfx::Transform composite;
composite.ConcatTransform(translate);
composite.ConcatTransform(scale);
composite.ConcatTransform(rotate);
{
LayerImplList render_surface_layer_list_impl;
LayerTreeHostCommon::CalcDrawPropsImplInputsForTesting inputs(
root, root->bounds(), composite, &render_surface_layer_list_impl);
inputs.property_trees->needs_rebuild = true;
LayerTreeHostCommon::CalculateDrawProperties(&inputs);
EXPECT_EQ(composite, root->draw_properties().target_space_transform);
EXPECT_EQ(composite, child->draw_properties().target_space_transform);
EXPECT_EQ(identity_matrix, root->render_surface()->draw_transform());
}
// Verify it composes correctly with device scale.
float device_scale_factor = 1.5f;
{
LayerImplList render_surface_layer_list_impl;
LayerTreeHostCommon::CalcDrawPropsImplInputsForTesting inputs(
root, root->bounds(), translate, &render_surface_layer_list_impl);
inputs.device_scale_factor = device_scale_factor;
inputs.property_trees->needs_rebuild = true;
LayerTreeHostCommon::CalculateDrawProperties(&inputs);
gfx::Transform device_scaled_translate = translate;
device_scaled_translate.Scale(device_scale_factor, device_scale_factor);
EXPECT_EQ(device_scaled_translate,
root->draw_properties().target_space_transform);
EXPECT_EQ(device_scaled_translate,
child->draw_properties().target_space_transform);
EXPECT_EQ(identity_matrix, root->render_surface()->draw_transform());
}
// Verify it composes correctly with page scale.
float page_scale_factor = 2.f;
{
LayerImplList render_surface_layer_list_impl;
LayerTreeHostCommon::CalcDrawPropsImplInputsForTesting inputs(
root, root->bounds(), translate, &render_surface_layer_list_impl);
inputs.page_scale_factor = page_scale_factor;
inputs.page_scale_layer = root;
inputs.property_trees->needs_rebuild = true;
LayerTreeHostCommon::CalculateDrawProperties(&inputs);
gfx::Transform page_scaled_translate = translate;
page_scaled_translate.Scale(page_scale_factor, page_scale_factor);
EXPECT_EQ(page_scaled_translate,
root->draw_properties().target_space_transform);
EXPECT_EQ(page_scaled_translate,
child->draw_properties().target_space_transform);
EXPECT_EQ(identity_matrix, root->render_surface()->draw_transform());
}
// Verify that it composes correctly with transforms directly on root layer.
root->SetTransform(composite);
{
LayerImplList render_surface_layer_list_impl;
LayerTreeHostCommon::CalcDrawPropsImplInputsForTesting inputs(
root, root->bounds(), composite, &render_surface_layer_list_impl);
inputs.property_trees->needs_rebuild = true;
LayerTreeHostCommon::CalculateDrawProperties(&inputs);
gfx::Transform compositeSquared = composite;
compositeSquared.ConcatTransform(composite);
EXPECT_TRANSFORMATION_MATRIX_EQ(
compositeSquared, root->draw_properties().target_space_transform);
EXPECT_TRANSFORMATION_MATRIX_EQ(
compositeSquared, child->draw_properties().target_space_transform);
EXPECT_EQ(identity_matrix, root->render_surface()->draw_transform());
}
}
TEST_F(LayerTreeHostCommonTest,
RenderSurfaceListForRenderSurfaceWithClippedLayer) {
LayerImpl* parent = root_layer();
parent->SetMasksToBounds(true);
LayerImpl* render_surface1 = AddChildToRoot<LayerImpl>();
LayerImpl* child = AddChild<LayerImpl>(render_surface1);
child->SetDrawsContent(true);
const gfx::Transform identity_matrix;
SetLayerPropertiesForTesting(parent, identity_matrix, gfx::Point3F(),
gfx::PointF(), gfx::Size(10, 10), true, false,
true);
SetLayerPropertiesForTesting(render_surface1, identity_matrix, gfx::Point3F(),
gfx::PointF(), gfx::Size(10, 10), true, false,
true);
SetLayerPropertiesForTesting(child, identity_matrix, gfx::Point3F(),
gfx::PointF(30.f, 30.f), gfx::Size(10, 10), true,
false, false);
ExecuteCalculateDrawProperties(parent);
// The child layer's content is entirely outside the parent's clip rect, so
// the intermediate render surface should not be listed here, even if it was
// forced to be created. Render surfaces without children or visible content
// are unexpected at draw time (e.g. we might try to create a content texture
// of size 0).
ASSERT_TRUE(parent->render_surface());
EXPECT_EQ(1U, render_surface_layer_list_impl()->size());
}
TEST_F(LayerTreeHostCommonTest, RenderSurfaceListForTransparentChild) {
LayerImpl* parent = root_layer();
LayerImpl* render_surface1 = AddChild<LayerImpl>(parent);
LayerImpl* child = AddChild<LayerImpl>(render_surface1);
child->SetDrawsContent(true);
const gfx::Transform identity_matrix;
SetLayerPropertiesForTesting(render_surface1, identity_matrix, gfx::Point3F(),
gfx::PointF(), gfx::Size(10, 10), true, false,
true);
SetLayerPropertiesForTesting(child, identity_matrix, gfx::Point3F(),
gfx::PointF(), gfx::Size(10, 10), true, false,
false);
render_surface1->SetOpacity(0.f);
LayerImplList render_surface_layer_list;
LayerTreeHostCommon::CalcDrawPropsImplInputsForTesting inputs(
parent, parent->bounds(), &render_surface_layer_list);
inputs.can_adjust_raster_scales = true;
LayerTreeHostCommon::CalculateDrawProperties(&inputs);
// Since the layer is transparent, render_surface1->render_surface() should
// not have gotten added anywhere. Also, the drawable content rect should not
// have been extended by the children.
ASSERT_TRUE(parent->render_surface());
EXPECT_EQ(0U, parent->render_surface()->layer_list().size());
EXPECT_EQ(1U, render_surface_layer_list.size());
EXPECT_EQ(parent->id(), render_surface_layer_list.at(0)->id());
EXPECT_EQ(gfx::Rect(), parent->drawable_content_rect());
}
TEST_F(LayerTreeHostCommonTest,
RenderSurfaceListForTransparentChildWithBackgroundFilter) {
LayerImpl* parent = root_layer();
LayerImpl* render_surface1 = AddChild<LayerImpl>(parent);
LayerImpl* child = AddChild<LayerImpl>(render_surface1);
child->SetDrawsContent(true);
const gfx::Transform identity_matrix;
SetLayerPropertiesForTesting(parent, identity_matrix, gfx::Point3F(),
gfx::PointF(), gfx::Size(10, 10), true, false,
true);
SetLayerPropertiesForTesting(render_surface1, identity_matrix, gfx::Point3F(),
gfx::PointF(), gfx::Size(10, 10), true, false,
true);
SetLayerPropertiesForTesting(child, identity_matrix, gfx::Point3F(),
gfx::PointF(), gfx::Size(10, 10), true, false,
false);
render_surface1->SetOpacity(0.f);
FilterOperations filters;
filters.Append(FilterOperation::CreateBlurFilter(1.5f));
render_surface1->SetBackgroundFilters(filters);
LayerImplList render_surface_layer_list;
LayerTreeHostCommon::CalcDrawPropsImplInputsForTesting inputs(
parent, parent->bounds(), &render_surface_layer_list);
inputs.can_adjust_raster_scales = true;
LayerTreeHostCommon::CalculateDrawProperties(&inputs);
// The layer is fully transparent, but has a background filter, so it
// shouldn't be skipped.
ASSERT_TRUE(parent->render_surface());
EXPECT_EQ(1U, parent->render_surface()->layer_list().size());
EXPECT_EQ(2U, render_surface_layer_list.size());
EXPECT_EQ(gfx::Rect(0, 0, 10, 10), parent->drawable_content_rect());
}
TEST_F(LayerTreeHostCommonTest, RenderSurfaceForBlendMode) {
LayerImpl* parent = root_layer();
LayerImpl* child = AddChild<LayerImpl>(parent);
child->SetDrawsContent(true);
const gfx::Transform identity_matrix;
const SkXfermode::Mode blend_mode = SkXfermode::kMultiply_Mode;
SetLayerPropertiesForTesting(parent, identity_matrix, gfx::Point3F(),
gfx::PointF(), gfx::Size(10, 10), true, false,
true);
SetLayerPropertiesForTesting(child, identity_matrix, gfx::Point3F(),
gfx::PointF(), gfx::Size(10, 10), true, false,
true);
child->SetBlendMode(blend_mode);
child->SetOpacity(0.5f);
ExecuteCalculateDrawProperties(parent);
// Since the child layer has a blend mode other than normal, it should get
// its own render surface. Also, layer's draw_properties should contain the
// default blend mode, since the render surface becomes responsible for
// applying the blend mode.
ASSERT_TRUE(child->render_surface());
EXPECT_EQ(1.0f, child->draw_opacity());
EXPECT_EQ(0.5f, child->render_surface()->draw_opacity());
EXPECT_EQ(SkXfermode::kSrcOver_Mode, child->draw_blend_mode());
}
TEST_F(LayerTreeHostCommonTest, DrawOpacityWhenCannotRenderToSeparateSurface) {
// Tests that when separate surfaces are disabled, a layer's draw opacity is
// the product of all ancestor layer opacties and the layer's own opacity.
// (Rendering will still be incorrect in situations where we really do need
// surfaces to apply opacity, such as when we have overlapping layers with an
// ancestor whose opacity is <1.)
LayerImpl* root = root_layer();
LayerImpl* parent = AddChild<LayerImpl>(root);
LayerImpl* child1 = AddChild<LayerImpl>(parent);
LayerImpl* child2 = AddChild<LayerImpl>(parent);
LayerImpl* grand_child = AddChild<LayerImpl>(child1);
LayerImpl* leaf_node1 = AddChild<LayerImpl>(grand_child);
LayerImpl* leaf_node2 = AddChild<LayerImpl>(child2);
root->SetDrawsContent(true);
parent->SetDrawsContent(true);
child1->SetDrawsContent(true);
child2->SetDrawsContent(true);
grand_child->SetDrawsContent(true);
leaf_node1->SetDrawsContent(true);
leaf_node2->SetDrawsContent(true);
const gfx::Transform identity_matrix;
// child1 and grand_child get render surfaces when surfaces are enabled.
SetLayerPropertiesForTesting(root, identity_matrix, gfx::Point3F(),
gfx::PointF(), gfx::Size(100, 100), true, false,
true);
SetLayerPropertiesForTesting(parent, identity_matrix, gfx::Point3F(),
gfx::PointF(), gfx::Size(100, 100), true, false,
false);
SetLayerPropertiesForTesting(child1, identity_matrix, gfx::Point3F(),
gfx::PointF(), gfx::Size(100, 100), true, false,
true);
SetLayerPropertiesForTesting(child2, identity_matrix, gfx::Point3F(),
gfx::PointF(), gfx::Size(100, 100), true, false,
false);
SetLayerPropertiesForTesting(grand_child, identity_matrix, gfx::Point3F(),
gfx::PointF(), gfx::Size(100, 100), true, false,
true);
SetLayerPropertiesForTesting(leaf_node1, identity_matrix, gfx::Point3F(),
gfx::PointF(), gfx::Size(100, 100), true, false,
false);
SetLayerPropertiesForTesting(leaf_node2, identity_matrix, gfx::Point3F(),
gfx::PointF(), gfx::Size(100, 100), true, false,
false);
child1->SetOpacity(0.5f);
grand_child->SetOpacity(0.5f);
leaf_node1->SetOpacity(0.5f);
leaf_node2->SetOpacity(0.5f);
// With surfaces enabled, each layer's draw opacity is the product of layer
// opacities on the path from the layer to its render target, not including
// the opacity of the layer that owns the target surface (since that opacity
// is applied by the surface).
ExecuteCalculateDrawProperties(root);
EXPECT_EQ(1.f, root->draw_opacity());
EXPECT_EQ(1.f, parent->draw_opacity());
EXPECT_EQ(1.f, child1->draw_opacity());
EXPECT_EQ(1.f, child2->draw_opacity());
EXPECT_EQ(1.f, grand_child->draw_opacity());
EXPECT_EQ(0.5f, leaf_node1->draw_opacity());
EXPECT_EQ(0.5f, leaf_node2->draw_opacity());
// With surfaces disabled, each layer's draw opacity is the product of layer
// opacities on the path from the layer to the root.
ExecuteCalculateDrawPropertiesWithoutSeparateSurfaces(root);
EXPECT_EQ(1.f, root->draw_opacity());
EXPECT_EQ(1.f, parent->draw_opacity());
EXPECT_EQ(0.5f, child1->draw_opacity());
EXPECT_EQ(1.f, child2->draw_opacity());
EXPECT_EQ(0.25f, grand_child->draw_opacity());
EXPECT_EQ(0.125f, leaf_node1->draw_opacity());
EXPECT_EQ(0.5f, leaf_node2->draw_opacity());
}
TEST_F(LayerTreeHostCommonTest, ForceRenderSurface) {
scoped_refptr<Layer> parent = Layer::Create(layer_settings());
scoped_refptr<Layer> render_surface1 = Layer::Create(layer_settings());
scoped_refptr<LayerWithForcedDrawsContent> child =
make_scoped_refptr(new LayerWithForcedDrawsContent(layer_settings()));
render_surface1->SetForceRenderSurface(true);
host()->SetRootLayer(parent);
const gfx::Transform identity_matrix;
SetLayerPropertiesForTesting(parent.get(),
identity_matrix,
gfx::Point3F(),
gfx::PointF(),
gfx::Size(10, 10),
true,
false);
SetLayerPropertiesForTesting(render_surface1.get(),
identity_matrix,
gfx::Point3F(),
gfx::PointF(),
gfx::Size(10, 10),
true,
false);
SetLayerPropertiesForTesting(child.get(),
identity_matrix,
gfx::Point3F(),
gfx::PointF(),
gfx::Size(10, 10),
true,
false);
parent->AddChild(render_surface1);
render_surface1->AddChild(child);
// Sanity check before the actual test
EXPECT_FALSE(parent->has_render_surface());
EXPECT_FALSE(render_surface1->has_render_surface());
{
LayerTreeHostCommon::CalcDrawPropsMainInputs inputs(parent.get(),
parent->bounds());
LayerTreeHostCommon::CalculateDrawProperties(&inputs);
// The root layer always creates a render surface
EXPECT_TRUE(parent->has_render_surface());
EXPECT_TRUE(render_surface1->has_render_surface());
}
{
render_surface1->SetForceRenderSurface(false);
LayerTreeHostCommon::CalcDrawPropsMainInputs inputs(parent.get(),
parent->bounds());
LayerTreeHostCommon::CalculateDrawProperties(&inputs);
EXPECT_TRUE(parent->has_render_surface());
EXPECT_FALSE(render_surface1->has_render_surface());
}
}
TEST_F(LayerTreeHostCommonTest, RenderSurfacesFlattenScreenSpaceTransform) {
// Render surfaces act as a flattening point for their subtree, so should
// always flatten the target-to-screen space transform seen by descendants.
LayerImpl* root = root_layer();
LayerImpl* parent = AddChild<LayerImpl>(root);
LayerImpl* child = AddChild<LayerImpl>(parent);
LayerImpl* grand_child = AddChild<LayerImpl>(child);
child->SetDrawsContent(true);
grand_child->SetDrawsContent(true);
gfx::Transform rotation_about_y_axis;
rotation_about_y_axis.RotateAboutYAxis(30.0);
// Make |parent| have a render surface.
parent->SetOpacity(0.9f);
const gfx::Transform identity_matrix;
SetLayerPropertiesForTesting(root, identity_matrix, gfx::Point3F(),
gfx::PointF(), gfx::Size(100, 100), true, false,
true);
SetLayerPropertiesForTesting(parent, rotation_about_y_axis, gfx::Point3F(),
gfx::PointF(), gfx::Size(10, 10), true, false,
true);
SetLayerPropertiesForTesting(child, identity_matrix, gfx::Point3F(),
gfx::PointF(), gfx::Size(10, 10), true, false,
false);
SetLayerPropertiesForTesting(grand_child, identity_matrix, gfx::Point3F(),
gfx::PointF(), gfx::Size(10, 10), true, false,
false);
grand_child->SetShouldFlattenTransform(false);
// Only grand_child should preserve 3d.
EXPECT_TRUE(root->should_flatten_transform());
EXPECT_TRUE(parent->should_flatten_transform());
EXPECT_TRUE(child->should_flatten_transform());
EXPECT_FALSE(grand_child->should_flatten_transform());
gfx::Transform expected_child_draw_transform = identity_matrix;
gfx::Transform expected_grand_child_draw_transform = identity_matrix;
gfx::Transform flattened_rotation_about_y = rotation_about_y_axis;
flattened_rotation_about_y.FlattenTo2d();
ExecuteCalculateDrawProperties(root);
EXPECT_TRUE(parent->render_surface());
EXPECT_FALSE(child->render_surface());
EXPECT_FALSE(grand_child->render_surface());
EXPECT_TRANSFORMATION_MATRIX_EQ(identity_matrix, child->draw_transform());
EXPECT_TRANSFORMATION_MATRIX_EQ(identity_matrix,
grand_child->draw_transform());
// The screen-space transform inherited by |child| and |grand_child| should
// have been flattened at their render target. In particular, the fact that
// |grand_child| happens to preserve 3d shouldn't affect this flattening.
EXPECT_TRANSFORMATION_MATRIX_EQ(flattened_rotation_about_y,
child->screen_space_transform());
EXPECT_TRANSFORMATION_MATRIX_EQ(flattened_rotation_about_y,
grand_child->screen_space_transform());
}
TEST_F(LayerTreeHostCommonTest, ClipRectCullsRenderSurfaces) {
// The entire subtree of layers that are outside the clip rect should be
// culled away, and should not affect the render_surface_layer_list.
//
// The test tree is set up as follows:
// - all layers except the leaf_nodes are forced to be a new render surface
// that have something to draw.
// - parent is a large container layer.
// - child has masksToBounds=true to cause clipping.
// - grand_child is positioned outside of the child's bounds
// - great_grand_child is also kept outside child's bounds.
//
// In this configuration, grand_child and great_grand_child are completely
// outside the clip rect, and they should never get scheduled on the list of
// render surfaces.
LayerImpl* parent = root_layer();
LayerImpl* child = AddChildToRoot<LayerImpl>();
LayerImpl* grand_child = AddChild<LayerImpl>(child);
LayerImpl* great_grand_child = AddChild<LayerImpl>(grand_child);
// leaf_node1 ensures that parent and child are kept on the
// render_surface_layer_list, even though grand_child and great_grand_child
// should be clipped.
LayerImpl* leaf_node1 = AddChild<LayerImpl>(child);
leaf_node1->SetDrawsContent(true);
LayerImpl* leaf_node2 = AddChild<LayerImpl>(great_grand_child);
leaf_node2->SetDrawsContent(true);
const gfx::Transform identity_matrix;
SetLayerPropertiesForTesting(parent, identity_matrix, gfx::Point3F(),
gfx::PointF(), gfx::Size(500, 500), true, false,
true);
SetLayerPropertiesForTesting(child, identity_matrix, gfx::Point3F(),
gfx::PointF(), gfx::Size(20, 20), true, false,
true);
SetLayerPropertiesForTesting(grand_child, identity_matrix, gfx::Point3F(),
gfx::PointF(45.f, 45.f), gfx::Size(10, 10), true,
false, false);
SetLayerPropertiesForTesting(great_grand_child, identity_matrix,
gfx::Point3F(), gfx::PointF(), gfx::Size(10, 10),
true, false, false);
SetLayerPropertiesForTesting(leaf_node1, identity_matrix, gfx::Point3F(),
gfx::PointF(), gfx::Size(500, 500), true, false,
false);
SetLayerPropertiesForTesting(leaf_node2, identity_matrix, gfx::Point3F(),
gfx::PointF(), gfx::Size(20, 20), true, false,
false);
child->SetMasksToBounds(true);
child->SetOpacity(0.4f);
grand_child->SetOpacity(0.5f);
great_grand_child->SetOpacity(0.4f);
ExecuteCalculateDrawProperties(parent);
ASSERT_EQ(2U, render_surface_layer_list_impl()->size());
EXPECT_EQ(parent->id(), render_surface_layer_list_impl()->at(0)->id());
EXPECT_EQ(child->id(), render_surface_layer_list_impl()->at(1)->id());
}
TEST_F(LayerTreeHostCommonTest, ClipRectCullsSurfaceWithoutVisibleContent) {
// When a render surface has a clip rect, it is used to clip the content rect
// of the surface.
// The test tree is set up as follows:
// - parent is a container layer that masksToBounds=true to cause clipping.
// - child is a render surface, which has a clip rect set to the bounds of
// the parent.
// - grand_child is a render surface, and the only visible content in child.
// It is positioned outside of the clip rect from parent.
// In this configuration, grand_child should be outside the clipped
// content rect of the child, making grand_child not appear in the
// render_surface_layer_list.
LayerImpl* parent = root_layer();
LayerImpl* child = AddChildToRoot<LayerImpl>();
LayerImpl* grand_child = AddChild<LayerImpl>(child);
LayerImpl* leaf_node = AddChild<LayerImpl>(grand_child);
leaf_node->SetDrawsContent(true);
const gfx::Transform identity_matrix;
SetLayerPropertiesForTesting(parent, identity_matrix, gfx::Point3F(),
gfx::PointF(), gfx::Size(100, 100), true, false,
true);
SetLayerPropertiesForTesting(child, identity_matrix, gfx::Point3F(),
gfx::PointF(), gfx::Size(20, 20), true, false,
true);
SetLayerPropertiesForTesting(grand_child, identity_matrix, gfx::Point3F(),
gfx::PointF(200.f, 200.f), gfx::Size(10, 10),
true, false, true);
SetLayerPropertiesForTesting(leaf_node, identity_matrix, gfx::Point3F(),
gfx::PointF(), gfx::Size(10, 10), true, false,
false);
parent->SetMasksToBounds(true);
child->SetOpacity(0.4f);
grand_child->SetOpacity(0.4f);
ExecuteCalculateDrawProperties(parent);
// We should cull child and grand_child from the
// render_surface_layer_list.
ASSERT_EQ(1U, render_surface_layer_list_impl()->size());
EXPECT_EQ(parent->id(), render_surface_layer_list_impl()->at(0)->id());
}
TEST_F(LayerTreeHostCommonTest, IsClippedIsSetCorrectlyLayerImpl) {
// Tests that LayerImpl's IsClipped() property is set to true when:
// - the layer clips its subtree, e.g. masks to bounds,
// - the layer is clipped by an ancestor that contributes to the same
// render target,
// - a surface is clipped by an ancestor that contributes to the same
// render target.
//
// In particular, for a layer that owns a render surface:
// - the render surface inherits any clip from ancestors, and does NOT
// pass that clipped status to the layer itself.
// - but if the layer itself masks to bounds, it is considered clipped
// and propagates the clip to the subtree.
const gfx::Transform identity_matrix;
LayerImpl* root = root_layer();
LayerImpl* parent = AddChild<LayerImpl>(root);
LayerImpl* child1 = AddChild<LayerImpl>(parent);
LayerImpl* child2 = AddChild<LayerImpl>(parent);
LayerImpl* grand_child = AddChild<LayerImpl>(child1);
LayerImpl* leaf_node1 = AddChild<LayerImpl>(grand_child);
leaf_node1->SetDrawsContent(true);
LayerImpl* leaf_node2 = AddChild<LayerImpl>(child2);
leaf_node2->SetDrawsContent(true);
SetLayerPropertiesForTesting(root, identity_matrix, gfx::Point3F(),
gfx::PointF(), gfx::Size(100, 100), true, false,
true);
SetLayerPropertiesForTesting(parent, identity_matrix, gfx::Point3F(),
gfx::PointF(), gfx::Size(100, 100), true, false,
false);
SetLayerPropertiesForTesting(child1, identity_matrix, gfx::Point3F(),
gfx::PointF(), gfx::Size(100, 100), true, false,
false);
SetLayerPropertiesForTesting(child2, identity_matrix, gfx::Point3F(),
gfx::PointF(), gfx::Size(100, 100), true, false,
true);
SetLayerPropertiesForTesting(grand_child, identity_matrix, gfx::Point3F(),
gfx::PointF(), gfx::Size(100, 100), true, false,
false);
SetLayerPropertiesForTesting(leaf_node1, identity_matrix, gfx::Point3F(),
gfx::PointF(), gfx::Size(100, 100), true, false,
false);
SetLayerPropertiesForTesting(leaf_node2, identity_matrix, gfx::Point3F(),
gfx::PointF(), gfx::Size(100, 100), true, false,
false);
// Case 1: nothing is clipped except the root render surface.
{
ExecuteCalculateDrawProperties(root);
ASSERT_TRUE(root->render_surface());
ASSERT_TRUE(child2->render_surface());
EXPECT_FALSE(root->is_clipped());
EXPECT_TRUE(root->render_surface()->is_clipped());
EXPECT_FALSE(parent->is_clipped());
EXPECT_FALSE(child1->is_clipped());
EXPECT_FALSE(child2->is_clipped());
EXPECT_FALSE(child2->render_surface()->is_clipped());
EXPECT_FALSE(grand_child->is_clipped());
EXPECT_FALSE(leaf_node1->is_clipped());
EXPECT_FALSE(leaf_node2->is_clipped());
}
// Case 2: parent masksToBounds, so the parent, child1, and child2's
// surface are clipped. But layers that contribute to child2's surface are
// not clipped explicitly because child2's surface already accounts for
// that clip.
{
parent->SetMasksToBounds(true);
host_impl()->active_tree()->property_trees()->needs_rebuild = true;
ExecuteCalculateDrawProperties(root);
ASSERT_TRUE(root->render_surface());
ASSERT_TRUE(child2->render_surface());
EXPECT_FALSE(root->is_clipped());
EXPECT_TRUE(root->render_surface()->is_clipped());
EXPECT_TRUE(parent->is_clipped());
EXPECT_TRUE(child1->is_clipped());
EXPECT_FALSE(child2->is_clipped());
EXPECT_TRUE(child2->render_surface()->is_clipped());
EXPECT_TRUE(grand_child->is_clipped());
EXPECT_TRUE(leaf_node1->is_clipped());
EXPECT_FALSE(leaf_node2->is_clipped());
parent->SetMasksToBounds(false);
}
// Case 3: child2 masksToBounds. The layer and subtree are clipped, and
// child2's render surface is not clipped.
{
child2->SetMasksToBounds(true);
host_impl()->active_tree()->property_trees()->needs_rebuild = true;
ExecuteCalculateDrawProperties(root);
ASSERT_TRUE(root->render_surface());
ASSERT_TRUE(child2->render_surface());
EXPECT_FALSE(root->is_clipped());
EXPECT_TRUE(root->render_surface()->is_clipped());
EXPECT_FALSE(parent->is_clipped());
EXPECT_FALSE(child1->is_clipped());
EXPECT_TRUE(child2->is_clipped());
EXPECT_FALSE(child2->render_surface()->is_clipped());
EXPECT_FALSE(grand_child->is_clipped());
EXPECT_FALSE(leaf_node1->is_clipped());
EXPECT_TRUE(leaf_node2->is_clipped());
}
}
TEST_F(LayerTreeHostCommonTest, IsClippedWhenCannotRenderToSeparateSurface) {
// Tests that when separate surfaces are disabled, is_clipped is true exactly
// when a layer or its ancestor has a clip; in particular, if a layer
// is_clipped, so is its entire subtree (since there are no render surfaces
// that can reset is_clipped).
LayerImpl* root = root_layer();
LayerImpl* parent = AddChild<LayerImpl>(root);
LayerImpl* child1 = AddChild<LayerImpl>(parent);
LayerImpl* child2 = AddChild<LayerImpl>(parent);
LayerImpl* grand_child = AddChild<LayerImpl>(child1);
LayerImpl* leaf_node1 = AddChild<LayerImpl>(grand_child);
LayerImpl* leaf_node2 = AddChild<LayerImpl>(child2);
root->SetDrawsContent(true);
parent->SetDrawsContent(true);
child1->SetDrawsContent(true);
child2->SetDrawsContent(true);
grand_child->SetDrawsContent(true);
leaf_node1->SetDrawsContent(true);
leaf_node2->SetDrawsContent(true);
const gfx::Transform identity_matrix;
// child1 and grand_child get render surfaces when surfaces are enabled.
SetLayerPropertiesForTesting(root, identity_matrix, gfx::Point3F(),
gfx::PointF(), gfx::Size(100, 100), true, false,
true);
SetLayerPropertiesForTesting(parent, identity_matrix, gfx::Point3F(),
gfx::PointF(), gfx::Size(100, 100), true, false,
false);
SetLayerPropertiesForTesting(child1, identity_matrix, gfx::Point3F(),
gfx::PointF(), gfx::Size(100, 100), true, false,
true);
SetLayerPropertiesForTesting(child2, identity_matrix, gfx::Point3F(),
gfx::PointF(), gfx::Size(100, 100), true, false,
false);
SetLayerPropertiesForTesting(grand_child, identity_matrix, gfx::Point3F(),
gfx::PointF(), gfx::Size(100, 100), true, false,
true);
SetLayerPropertiesForTesting(leaf_node1, identity_matrix, gfx::Point3F(),
gfx::PointF(), gfx::Size(100, 100), true, false,
false);
SetLayerPropertiesForTesting(leaf_node2, identity_matrix, gfx::Point3F(),
gfx::PointF(), gfx::Size(100, 100), true, false,
false);
// Case 1: Nothing is clipped. In this case, is_clipped is always false, with
// or without surfaces.
ExecuteCalculateDrawProperties(root);
EXPECT_FALSE(root->is_clipped());
EXPECT_FALSE(parent->is_clipped());
EXPECT_FALSE(child1->is_clipped());
EXPECT_FALSE(child2->is_clipped());
EXPECT_FALSE(grand_child->is_clipped());
EXPECT_FALSE(leaf_node1->is_clipped());
EXPECT_FALSE(leaf_node2->is_clipped());
ExecuteCalculateDrawPropertiesWithoutSeparateSurfaces(root);
EXPECT_FALSE(root->is_clipped());
EXPECT_FALSE(parent->is_clipped());
EXPECT_FALSE(child1->is_clipped());
EXPECT_FALSE(child2->is_clipped());
EXPECT_FALSE(grand_child->is_clipped());
EXPECT_FALSE(leaf_node1->is_clipped());
EXPECT_FALSE(leaf_node2->is_clipped());
// Case 2: The root is clipped. With surfaces, this only persists until the
// next render surface. Without surfaces, the entire tree is clipped.
root->SetMasksToBounds(true);
host_impl()->active_tree()->property_trees()->needs_rebuild = true;
ExecuteCalculateDrawProperties(root);
EXPECT_TRUE(root->is_clipped());
EXPECT_TRUE(parent->is_clipped());
EXPECT_FALSE(child1->is_clipped());
EXPECT_TRUE(child2->is_clipped());
EXPECT_FALSE(grand_child->is_clipped());
EXPECT_FALSE(leaf_node1->is_clipped());
EXPECT_TRUE(leaf_node2->is_clipped());
ExecuteCalculateDrawPropertiesWithoutSeparateSurfaces(root);
EXPECT_TRUE(root->is_clipped());
EXPECT_TRUE(parent->is_clipped());
EXPECT_TRUE(child1->is_clipped());
EXPECT_TRUE(child2->is_clipped());
EXPECT_TRUE(grand_child->is_clipped());
EXPECT_TRUE(leaf_node1->is_clipped());
EXPECT_TRUE(leaf_node2->is_clipped());
root->SetMasksToBounds(false);
// Case 3: The parent is clipped. Again, with surfaces, this only persists
// until the next render surface. Without surfaces, parent's entire subtree is
// clipped.
parent->SetMasksToBounds(true);
host_impl()->active_tree()->property_trees()->needs_rebuild = true;
ExecuteCalculateDrawProperties(root);
EXPECT_FALSE(root->is_clipped());
EXPECT_TRUE(parent->is_clipped());
EXPECT_FALSE(child1->is_clipped());
EXPECT_TRUE(child2->is_clipped());
EXPECT_FALSE(grand_child->is_clipped());
EXPECT_FALSE(leaf_node1->is_clipped());
EXPECT_TRUE(leaf_node2->is_clipped());
ExecuteCalculateDrawPropertiesWithoutSeparateSurfaces(root);
EXPECT_FALSE(root->is_clipped());
EXPECT_TRUE(parent->is_clipped());
EXPECT_TRUE(child1->is_clipped());
EXPECT_TRUE(child2->is_clipped());
EXPECT_TRUE(grand_child->is_clipped());
EXPECT_TRUE(leaf_node1->is_clipped());
EXPECT_TRUE(leaf_node2->is_clipped());
parent->SetMasksToBounds(false);
// Case 4: child1 is clipped. With surfaces, only child1 is_clipped, since it
// has no non-surface children. Without surfaces, child1's entire subtree is
// clipped.
child1->SetMasksToBounds(true);
host_impl()->active_tree()->property_trees()->needs_rebuild = true;
ExecuteCalculateDrawProperties(root);
EXPECT_FALSE(root->is_clipped());
EXPECT_FALSE(parent->is_clipped());
EXPECT_TRUE(child1->is_clipped());
EXPECT_FALSE(child2->is_clipped());
EXPECT_FALSE(grand_child->is_clipped());
EXPECT_FALSE(leaf_node1->is_clipped());
EXPECT_FALSE(leaf_node2->is_clipped());
ExecuteCalculateDrawPropertiesWithoutSeparateSurfaces(root);
EXPECT_FALSE(root->is_clipped());
EXPECT_FALSE(parent->is_clipped());
EXPECT_TRUE(child1->is_clipped());
EXPECT_FALSE(child2->is_clipped());
EXPECT_TRUE(grand_child->is_clipped());
EXPECT_TRUE(leaf_node1->is_clipped());
EXPECT_FALSE(leaf_node2->is_clipped());
child1->SetMasksToBounds(false);
// Case 5: Only the leaf nodes are clipped. The behavior with and without
// surfaces is the same.
leaf_node1->SetMasksToBounds(true);
leaf_node2->SetMasksToBounds(true);
host_impl()->active_tree()->property_trees()->needs_rebuild = true;
ExecuteCalculateDrawProperties(root);
EXPECT_FALSE(root->is_clipped());
EXPECT_FALSE(parent->is_clipped());
EXPECT_FALSE(child1->is_clipped());
EXPECT_FALSE(child2->is_clipped());
EXPECT_FALSE(grand_child->is_clipped());
EXPECT_TRUE(leaf_node1->is_clipped());
EXPECT_TRUE(leaf_node2->is_clipped());
ExecuteCalculateDrawPropertiesWithoutSeparateSurfaces(root);
EXPECT_FALSE(root->is_clipped());
EXPECT_FALSE(parent->is_clipped());
EXPECT_FALSE(child1->is_clipped());
EXPECT_FALSE(child2->is_clipped());
EXPECT_FALSE(grand_child->is_clipped());
EXPECT_TRUE(leaf_node1->is_clipped());
EXPECT_TRUE(leaf_node2->is_clipped());
}
TEST_F(LayerTreeHostCommonTest, DrawableContentRectForLayers) {
// Verify that layers get the appropriate DrawableContentRect when their
// parent masksToBounds is true.
//
// grand_child1 - completely inside the region; DrawableContentRect should
// be the layer rect expressed in target space.
// grand_child2 - partially clipped but NOT masksToBounds; the clip rect
// will be the intersection of layer bounds and the mask region.
// grand_child3 - partially clipped and masksToBounds; the
// DrawableContentRect will still be the intersection of layer bounds and
// the mask region.
// grand_child4 - outside parent's clip rect; the DrawableContentRect should
// be empty.
const gfx::Transform identity_matrix;
LayerImpl* parent = root_layer();
LayerImpl* child = AddChild<LayerImpl>(parent);
LayerImpl* grand_child1 = AddChild<LayerImpl>(child);
LayerImpl* grand_child2 = AddChild<LayerImpl>(child);
LayerImpl* grand_child3 = AddChild<LayerImpl>(child);
LayerImpl* grand_child4 = AddChild<LayerImpl>(child);
SetLayerPropertiesForTesting(parent, identity_matrix, gfx::Point3F(),
gfx::PointF(), gfx::Size(500, 500), true, false,
true);
SetLayerPropertiesForTesting(child, identity_matrix, gfx::Point3F(),
gfx::PointF(), gfx::Size(20, 20), true, false,
true);
SetLayerPropertiesForTesting(grand_child1, identity_matrix, gfx::Point3F(),
gfx::PointF(5.f, 5.f), gfx::Size(10, 10), true,
false, false);
SetLayerPropertiesForTesting(grand_child2, identity_matrix, gfx::Point3F(),
gfx::PointF(15.f, 15.f), gfx::Size(10, 10), true,
false, false);
SetLayerPropertiesForTesting(grand_child3, identity_matrix, gfx::Point3F(),
gfx::PointF(15.f, 15.f), gfx::Size(10, 10), true,
false, false);
SetLayerPropertiesForTesting(grand_child4, identity_matrix, gfx::Point3F(),
gfx::PointF(45.f, 45.f), gfx::Size(10, 10), true,
false, false);
child->SetMasksToBounds(true);
grand_child3->SetMasksToBounds(true);
// Force child to be a render surface.
child->SetOpacity(0.4f);
ExecuteCalculateDrawProperties(parent);
EXPECT_EQ(gfx::Rect(5, 5, 10, 10), grand_child1->drawable_content_rect());
EXPECT_EQ(gfx::Rect(15, 15, 5, 5), grand_child3->drawable_content_rect());
EXPECT_EQ(gfx::Rect(15, 15, 5, 5), grand_child3->drawable_content_rect());
EXPECT_TRUE(grand_child4->drawable_content_rect().IsEmpty());
}
TEST_F(LayerTreeHostCommonTest, ClipRectIsPropagatedCorrectlyToSurfaces) {
// Verify that render surfaces (and their layers) get the appropriate
// clip rects when their parent masksToBounds is true.
//
// Layers that own render surfaces (at least for now) do not inherit any
// clipping; instead the surface will enforce the clip for the entire subtree.
// They may still have a clip rect of their own layer bounds, however, if
// masksToBounds was true.
LayerImpl* parent = root_layer();
LayerImpl* child = AddChildToRoot<LayerImpl>();
LayerImpl* grand_child1 = AddChild<LayerImpl>(child);
LayerImpl* grand_child2 = AddChild<LayerImpl>(child);
LayerImpl* grand_child3 = AddChild<LayerImpl>(child);
LayerImpl* grand_child4 = AddChild<LayerImpl>(child);
// the leaf nodes ensure that these grand_children become render surfaces for
// this test.
LayerImpl* leaf_node1 = AddChild<LayerImpl>(grand_child1);
leaf_node1->SetDrawsContent(true);
LayerImpl* leaf_node2 = AddChild<LayerImpl>(grand_child2);
leaf_node2->SetDrawsContent(true);
LayerImpl* leaf_node3 = AddChild<LayerImpl>(grand_child3);
leaf_node3->SetDrawsContent(true);
LayerImpl* leaf_node4 = AddChild<LayerImpl>(grand_child4);
leaf_node4->SetDrawsContent(true);
const gfx::Transform identity_matrix;
SetLayerPropertiesForTesting(parent, identity_matrix, gfx::Point3F(),
gfx::PointF(), gfx::Size(500, 500), true, false,
true);
SetLayerPropertiesForTesting(child, identity_matrix, gfx::Point3F(),
gfx::PointF(), gfx::Size(20, 20), true, false,
true);
SetLayerPropertiesForTesting(grand_child1, identity_matrix, gfx::Point3F(),
gfx::PointF(5.f, 5.f), gfx::Size(10, 10), true,
false, true);
SetLayerPropertiesForTesting(grand_child2, identity_matrix, gfx::Point3F(),
gfx::PointF(15.f, 15.f), gfx::Size(10, 10), true,
false, true);
SetLayerPropertiesForTesting(grand_child3, identity_matrix, gfx::Point3F(),
gfx::PointF(15.f, 15.f), gfx::Size(10, 10), true,
false, true);
SetLayerPropertiesForTesting(grand_child4, identity_matrix, gfx::Point3F(),
gfx::PointF(45.f, 45.f), gfx::Size(10, 10), true,
false, true);
SetLayerPropertiesForTesting(leaf_node1, identity_matrix, gfx::Point3F(),
gfx::PointF(), gfx::Size(10, 10), true, false,
false);
SetLayerPropertiesForTesting(leaf_node2, identity_matrix, gfx::Point3F(),
gfx::PointF(), gfx::Size(10, 10), true, false,
false);
SetLayerPropertiesForTesting(leaf_node3, identity_matrix, gfx::Point3F(),
gfx::PointF(), gfx::Size(10, 10), true, false,
false);
SetLayerPropertiesForTesting(leaf_node4, identity_matrix, gfx::Point3F(),
gfx::PointF(), gfx::Size(10, 10), true, false,
false);
child->SetMasksToBounds(true);
grand_child3->SetMasksToBounds(true);
grand_child4->SetMasksToBounds(true);
// Force everyone to be a render surface.
child->SetOpacity(0.4f);
grand_child1->SetOpacity(0.5f);
grand_child2->SetOpacity(0.5f);
grand_child3->SetOpacity(0.5f);
grand_child4->SetOpacity(0.5f);
ExecuteCalculateDrawProperties(parent);
ASSERT_TRUE(grand_child1->render_surface());
ASSERT_TRUE(grand_child2->render_surface());
ASSERT_TRUE(grand_child3->render_surface());
// Surfaces are clipped by their parent, but un-affected by the owning layer's
// masksToBounds.
EXPECT_EQ(gfx::Rect(0, 0, 20, 20),
grand_child1->render_surface()->clip_rect());
EXPECT_EQ(gfx::Rect(0, 0, 20, 20),
grand_child2->render_surface()->clip_rect());
EXPECT_EQ(gfx::Rect(0, 0, 20, 20),
grand_child3->render_surface()->clip_rect());
}
TEST_F(LayerTreeHostCommonTest, ClipRectWhenCannotRenderToSeparateSurface) {
// Tests that when separate surfaces are disabled, a layer's clip_rect is the
// intersection of all ancestor clips in screen space; in particular, if a
// layer masks to bounds, it contributes to the clip_rect of all layers in its
// subtree (since there are no render surfaces that can reset the clip_rect).
LayerImpl* root = root_layer();
LayerImpl* parent = AddChild<LayerImpl>(root);
LayerImpl* child1 = AddChild<LayerImpl>(parent);
LayerImpl* child2 = AddChild<LayerImpl>(parent);
LayerImpl* grand_child = AddChild<LayerImpl>(child1);
LayerImpl* leaf_node1 = AddChild<LayerImpl>(grand_child);
LayerImpl* leaf_node2 = AddChild<LayerImpl>(child2);
root->SetDrawsContent(true);
parent->SetDrawsContent(true);
child1->SetDrawsContent(true);
child2->SetDrawsContent(true);
grand_child->SetDrawsContent(true);
leaf_node1->SetDrawsContent(true);
leaf_node2->SetDrawsContent(true);
const gfx::Transform identity_matrix;
// child1 and grand_child get render surfaces when surfaces are enabled.
SetLayerPropertiesForTesting(root, identity_matrix, gfx::Point3F(),
gfx::PointF(), gfx::Size(100, 100), true, false,
true);
SetLayerPropertiesForTesting(parent, identity_matrix, gfx::Point3F(),
gfx::PointF(2.f, 2.f), gfx::Size(400, 400), true,
false, false);
SetLayerPropertiesForTesting(child1, identity_matrix, gfx::Point3F(),
gfx::PointF(4.f, 4.f), gfx::Size(800, 800), true,
false, true);
SetLayerPropertiesForTesting(child2, identity_matrix, gfx::Point3F(),
gfx::PointF(3.f, 3.f), gfx::Size(800, 800), true,
false, false);
SetLayerPropertiesForTesting(grand_child, identity_matrix, gfx::Point3F(),
gfx::PointF(8.f, 8.f), gfx::Size(1500, 1500),
true, false, true);
SetLayerPropertiesForTesting(leaf_node1, identity_matrix, gfx::Point3F(),
gfx::PointF(16.f, 16.f), gfx::Size(2000, 2000),
true, false, false);
SetLayerPropertiesForTesting(leaf_node2, identity_matrix, gfx::Point3F(),
gfx::PointF(9.f, 9.f), gfx::Size(2000, 2000),
true, false, false);
// Case 1: Nothing is clipped. In this case, each layer's clip rect is its
// bounds in target space. The only thing that changes when surfaces are
// disabled is that target space is always screen space.
ExecuteCalculateDrawProperties(root);
EXPECT_EQ(gfx::Rect(100, 100), root->clip_rect());
EXPECT_EQ(gfx::Rect(2, 2, 400, 400), parent->clip_rect());
EXPECT_EQ(gfx::Rect(800, 800), child1->clip_rect());
EXPECT_EQ(gfx::Rect(5, 5, 800, 800), child2->clip_rect());
EXPECT_EQ(gfx::Rect(1500, 1500), grand_child->clip_rect());
EXPECT_EQ(gfx::Rect(16, 16, 2000, 2000), leaf_node1->clip_rect());
EXPECT_EQ(gfx::Rect(14, 14, 2000, 2000), leaf_node2->clip_rect());
ExecuteCalculateDrawPropertiesWithoutSeparateSurfaces(root);
EXPECT_EQ(gfx::Rect(100, 100), root->clip_rect());
EXPECT_EQ(gfx::Rect(2, 2, 400, 400), parent->clip_rect());
EXPECT_EQ(gfx::Rect(6, 6, 800, 800), child1->clip_rect());
EXPECT_EQ(gfx::Rect(5, 5, 800, 800), child2->clip_rect());
EXPECT_EQ(gfx::Rect(14, 14, 1500, 1500), grand_child->clip_rect());
EXPECT_EQ(gfx::Rect(30, 30, 2000, 2000), leaf_node1->clip_rect());
EXPECT_EQ(gfx::Rect(14, 14, 2000, 2000), leaf_node2->clip_rect());
// Case 2: The root is clipped. In this case, layers that draw into the root
// render surface are clipped by the root's bounds.
root->SetMasksToBounds(true);
host_impl()->active_tree()->property_trees()->needs_rebuild = true;
ExecuteCalculateDrawProperties(root);
EXPECT_EQ(gfx::Rect(100, 100), root->clip_rect());
EXPECT_EQ(gfx::Rect(100, 100), parent->clip_rect());
EXPECT_EQ(gfx::Rect(800, 800), child1->clip_rect());
EXPECT_EQ(gfx::Rect(100, 100), child2->clip_rect());
EXPECT_EQ(gfx::Rect(1500, 1500), grand_child->clip_rect());
EXPECT_EQ(gfx::Rect(16, 16, 2000, 2000), leaf_node1->clip_rect());
EXPECT_EQ(gfx::Rect(100, 100), leaf_node2->clip_rect());
ExecuteCalculateDrawPropertiesWithoutSeparateSurfaces(root);
EXPECT_EQ(gfx::Rect(100, 100), root->clip_rect());
EXPECT_EQ(gfx::Rect(100, 100), parent->clip_rect());
EXPECT_EQ(gfx::Rect(100, 100), child1->clip_rect());
EXPECT_EQ(gfx::Rect(100, 100), child2->clip_rect());
EXPECT_EQ(gfx::Rect(100, 100), grand_child->clip_rect());
EXPECT_EQ(gfx::Rect(100, 100), leaf_node1->clip_rect());
EXPECT_EQ(gfx::Rect(100, 100), leaf_node2->clip_rect());
root->SetMasksToBounds(false);
// Case 3: The parent and child1 are clipped. When surfaces are enabled, the
// parent clip rect only contributes to the subtree rooted at child2, since
// the subtree rooted at child1 renders into a separate surface. Similarly,
// child1's clip rect doesn't contribute to its descendants, since its only
// child is a render surface. However, without surfaces, these clip rects
// contribute to all descendants.
parent->SetMasksToBounds(true);
child1->SetMasksToBounds(true);
host_impl()->active_tree()->property_trees()->needs_rebuild = true;
ExecuteCalculateDrawProperties(root);
EXPECT_EQ(gfx::Rect(100, 100), root->clip_rect());
EXPECT_EQ(gfx::Rect(2, 2, 400, 400), parent->clip_rect());
EXPECT_EQ(gfx::Rect(800, 800), child1->clip_rect());
EXPECT_EQ(gfx::Rect(2, 2, 400, 400), child2->clip_rect());
EXPECT_EQ(gfx::Rect(1500, 1500), grand_child->clip_rect());
EXPECT_EQ(gfx::Rect(16, 16, 2000, 2000), leaf_node1->clip_rect());
EXPECT_EQ(gfx::Rect(2, 2, 400, 400), leaf_node2->clip_rect());
ExecuteCalculateDrawPropertiesWithoutSeparateSurfaces(root);
EXPECT_EQ(gfx::Rect(100, 100), root->clip_rect());
EXPECT_EQ(gfx::Rect(2, 2, 400, 400), parent->clip_rect());
EXPECT_EQ(gfx::Rect(6, 6, 396, 396), child1->clip_rect());
EXPECT_EQ(gfx::Rect(2, 2, 400, 400), child2->clip_rect());
EXPECT_EQ(gfx::Rect(6, 6, 396, 396), grand_child->clip_rect());
EXPECT_EQ(gfx::Rect(6, 6, 396, 396), leaf_node1->clip_rect());
EXPECT_EQ(gfx::Rect(2, 2, 400, 400), leaf_node2->clip_rect());
}
TEST_F(LayerTreeHostCommonTest, SurfacesDisabledAndReEnabled) {
// Tests that draw properties are computed correctly when we disable and then
// re-enable separate surfaces.
LayerImpl* root = root_layer();
LayerImpl* parent = AddChild<LayerImpl>(root);
LayerImpl* child = AddChild<LayerImpl>(parent);
LayerImpl* grand_child = AddChild<LayerImpl>(child);
LayerImpl* leaf_node = AddChild<LayerImpl>(grand_child);
root->SetDrawsContent(true);
parent->SetDrawsContent(true);
child->SetDrawsContent(true);
grand_child->SetDrawsContent(true);
leaf_node->SetDrawsContent(true);
const gfx::Transform identity_matrix;
// child and grand_child get render surfaces when surfaces are enabled.
SetLayerPropertiesForTesting(root, identity_matrix, gfx::Point3F(),
gfx::PointF(), gfx::Size(100, 100), true, false,
true);
SetLayerPropertiesForTesting(parent, identity_matrix, gfx::Point3F(),
gfx::PointF(2.f, 2.f), gfx::Size(400, 400), true,
false, false);
SetLayerPropertiesForTesting(child, identity_matrix, gfx::Point3F(),
gfx::PointF(4.f, 4.f), gfx::Size(800, 800), true,
false, true);
SetLayerPropertiesForTesting(grand_child, identity_matrix, gfx::Point3F(),
gfx::PointF(8.f, 8.f), gfx::Size(1500, 1500),
true, false, true);
SetLayerPropertiesForTesting(leaf_node, identity_matrix, gfx::Point3F(),
gfx::PointF(16.f, 16.f), gfx::Size(2000, 2000),
true, false, false);
parent->SetMasksToBounds(true);
child->SetMasksToBounds(true);
gfx::Transform expected_leaf_draw_transform_with_surfaces;
expected_leaf_draw_transform_with_surfaces.Translate(16.0, 16.0);
gfx::Transform expected_leaf_draw_transform_without_surfaces;
expected_leaf_draw_transform_without_surfaces.Translate(30.0, 30.0);
ExecuteCalculateDrawProperties(root);
EXPECT_EQ(gfx::Rect(16, 16, 2000, 2000), leaf_node->clip_rect());
EXPECT_EQ(gfx::Rect(16, 16, 2000, 2000), leaf_node->drawable_content_rect());
EXPECT_EQ(expected_leaf_draw_transform_with_surfaces,
leaf_node->draw_transform());
ExecuteCalculateDrawPropertiesWithoutSeparateSurfaces(root);
EXPECT_EQ(gfx::Rect(6, 6, 396, 396), leaf_node->clip_rect());
EXPECT_EQ(gfx::Rect(30, 30, 372, 372), leaf_node->drawable_content_rect());
EXPECT_EQ(expected_leaf_draw_transform_without_surfaces,
leaf_node->draw_transform());
ExecuteCalculateDrawProperties(root);
EXPECT_EQ(gfx::Rect(16, 16, 2000, 2000), leaf_node->clip_rect());
EXPECT_EQ(gfx::Rect(16, 16, 2000, 2000), leaf_node->drawable_content_rect());
EXPECT_EQ(expected_leaf_draw_transform_with_surfaces,
leaf_node->draw_transform());
}
TEST_F(LayerTreeHostCommonTest, AnimationsForRenderSurfaceHierarchy) {
LayerImpl* parent = root_layer();
LayerImpl* render_surface1 = AddChildToRoot<LayerImpl>();
LayerImpl* child_of_rs1 = AddChild<LayerImpl>(render_surface1);
LayerImpl* grand_child_of_rs1 = AddChild<LayerImpl>(child_of_rs1);
LayerImpl* render_surface2 = AddChild<LayerImpl>(render_surface1);
LayerImpl* child_of_rs2 = AddChild<LayerImpl>(render_surface2);
LayerImpl* grand_child_of_rs2 = AddChild<LayerImpl>(child_of_rs2);
LayerImpl* child_of_root = AddChildToRoot<LayerImpl>();
LayerImpl* grand_child_of_root = AddChild<LayerImpl>(child_of_root);
grand_child_of_rs1->SetDrawsContent(true);
grand_child_of_rs2->SetDrawsContent(true);
gfx::Transform layer_transform;
layer_transform.Translate(1.0, 1.0);
SetLayerPropertiesForTesting(
parent, layer_transform, gfx::Point3F(0.25f, 0.f, 0.f),
gfx::PointF(2.5f, 0.f), gfx::Size(10, 10), true, false, true);
SetLayerPropertiesForTesting(
render_surface1, layer_transform, gfx::Point3F(0.25f, 0.f, 0.f),
gfx::PointF(2.5f, 0.f), gfx::Size(10, 10), true, false, true);
SetLayerPropertiesForTesting(
render_surface2, layer_transform, gfx::Point3F(0.25f, 0.f, 0.f),
gfx::PointF(2.5f, 0.f), gfx::Size(10, 10), true, false, true);
SetLayerPropertiesForTesting(
child_of_root, layer_transform, gfx::Point3F(0.25f, 0.f, 0.f),
gfx::PointF(2.5f, 0.f), gfx::Size(10, 10), true, false, false);
SetLayerPropertiesForTesting(
child_of_rs1, layer_transform, gfx::Point3F(0.25f, 0.f, 0.f),
gfx::PointF(2.5f, 0.f), gfx::Size(10, 10), true, false, false);
SetLayerPropertiesForTesting(
child_of_rs2, layer_transform, gfx::Point3F(0.25f, 0.f, 0.f),
gfx::PointF(2.5f, 0.f), gfx::Size(10, 10), true, false, false);
SetLayerPropertiesForTesting(
grand_child_of_root, layer_transform, gfx::Point3F(0.25f, 0.f, 0.f),
gfx::PointF(2.5f, 0.f), gfx::Size(10, 10), true, false, false);
SetLayerPropertiesForTesting(
grand_child_of_rs1, layer_transform, gfx::Point3F(0.25f, 0.f, 0.f),
gfx::PointF(2.5f, 0.f), gfx::Size(10, 10), true, false, false);
SetLayerPropertiesForTesting(
grand_child_of_rs2, layer_transform, gfx::Point3F(0.25f, 0.f, 0.f),
gfx::PointF(2.5f, 0.f), gfx::Size(10, 10), true, false, false);
// Put an animated opacity on the render surface.
AddOpacityTransitionToController(
render_surface1->layer_animation_controller(), 10.0, 1.f, 0.f, false);
// Also put an animated opacity on a layer without descendants.
AddOpacityTransitionToController(
grand_child_of_root->layer_animation_controller(), 10.0, 1.f, 0.f, false);
// Put a transform animation on the render surface.
AddAnimatedTransformToController(
render_surface2->layer_animation_controller(), 10.0, 30, 0);
// Also put transform animations on grand_child_of_root, and
// grand_child_of_rs2
AddAnimatedTransformToController(
grand_child_of_root->layer_animation_controller(), 10.0, 30, 0);
AddAnimatedTransformToController(
grand_child_of_rs2->layer_animation_controller(), 10.0, 30, 0);
ExecuteCalculateDrawProperties(parent);
// Only layers that are associated with render surfaces should have an actual
// RenderSurface() value.
ASSERT_TRUE(parent->render_surface());
ASSERT_FALSE(child_of_root->render_surface());
ASSERT_FALSE(grand_child_of_root->render_surface());
ASSERT_TRUE(render_surface1->render_surface());
ASSERT_FALSE(child_of_rs1->render_surface());
ASSERT_FALSE(grand_child_of_rs1->render_surface());
ASSERT_TRUE(render_surface2->render_surface());
ASSERT_FALSE(child_of_rs2->render_surface());
ASSERT_FALSE(grand_child_of_rs2->render_surface());
// Verify all render target accessors
EXPECT_EQ(parent, parent->render_target());
EXPECT_EQ(parent, child_of_root->render_target());
EXPECT_EQ(parent, grand_child_of_root->render_target());
EXPECT_EQ(render_surface1, render_surface1->render_target());
EXPECT_EQ(render_surface1, child_of_rs1->render_target());
EXPECT_EQ(render_surface1, grand_child_of_rs1->render_target());
EXPECT_EQ(render_surface2, render_surface2->render_target());
EXPECT_EQ(render_surface2, child_of_rs2->render_target());
EXPECT_EQ(render_surface2, grand_child_of_rs2->render_target());
// Verify screen_space_transform_is_animating values
EXPECT_FALSE(parent->screen_space_transform_is_animating());
EXPECT_FALSE(child_of_root->screen_space_transform_is_animating());
EXPECT_TRUE(grand_child_of_root->screen_space_transform_is_animating());
EXPECT_FALSE(render_surface1->screen_space_transform_is_animating());
EXPECT_FALSE(child_of_rs1->screen_space_transform_is_animating());
EXPECT_FALSE(grand_child_of_rs1->screen_space_transform_is_animating());
EXPECT_TRUE(render_surface2->screen_space_transform_is_animating());
EXPECT_TRUE(child_of_rs2->screen_space_transform_is_animating());
EXPECT_TRUE(grand_child_of_rs2->screen_space_transform_is_animating());
// Sanity check. If these fail there is probably a bug in the test itself.
// It is expected that we correctly set up transforms so that the y-component
// of the screen-space transform encodes the "depth" of the layer in the tree.
EXPECT_FLOAT_EQ(1.0, parent->screen_space_transform().matrix().get(1, 3));
EXPECT_FLOAT_EQ(2.0,
child_of_root->screen_space_transform().matrix().get(1, 3));
EXPECT_FLOAT_EQ(
3.0, grand_child_of_root->screen_space_transform().matrix().get(1, 3));
EXPECT_FLOAT_EQ(2.0,
render_surface1->screen_space_transform().matrix().get(1, 3));
EXPECT_FLOAT_EQ(3.0,
child_of_rs1->screen_space_transform().matrix().get(1, 3));
EXPECT_FLOAT_EQ(
4.0, grand_child_of_rs1->screen_space_transform().matrix().get(1, 3));
EXPECT_FLOAT_EQ(3.0,
render_surface2->screen_space_transform().matrix().get(1, 3));
EXPECT_FLOAT_EQ(4.0,
child_of_rs2->screen_space_transform().matrix().get(1, 3));
EXPECT_FLOAT_EQ(
5.0, grand_child_of_rs2->screen_space_transform().matrix().get(1, 3));
}
TEST_F(LayerTreeHostCommonTest, LargeTransforms) {
LayerImpl* parent = root_layer();
LayerImpl* child = AddChildToRoot<LayerImpl>();
LayerImpl* grand_child = AddChild<LayerImpl>(child);
grand_child->SetDrawsContent(true);
gfx::Transform large_transform;
large_transform.Scale(SkDoubleToMScalar(1e37), SkDoubleToMScalar(1e37));
gfx::Transform identity;
SetLayerPropertiesForTesting(parent, identity, gfx::Point3F(), gfx::PointF(),
gfx::Size(10, 10), true, false, true);
SetLayerPropertiesForTesting(child, large_transform, gfx::Point3F(),
gfx::PointF(), gfx::Size(10, 10), true, false,
false);
SetLayerPropertiesForTesting(grand_child, large_transform, gfx::Point3F(),
gfx::PointF(), gfx::Size(10, 10), true, false,
false);
ExecuteCalculateDrawProperties(parent);
EXPECT_EQ(gfx::Rect(), grand_child->visible_layer_rect());
}
TEST_F(LayerTreeHostCommonTest,
ScreenSpaceTransformIsAnimatingWithDelayedAnimation) {
LayerImpl* parent = root_layer();
LayerImpl* child = AddChild<LayerImpl>(parent);
LayerImpl* grand_child = AddChild<LayerImpl>(child);
LayerImpl* great_grand_child = AddChild<LayerImpl>(grand_child);
parent->SetDrawsContent(true);
child->SetDrawsContent(true);
grand_child->SetDrawsContent(true);
great_grand_child->SetDrawsContent(true);
gfx::Transform identity;
SetLayerPropertiesForTesting(parent, identity, gfx::Point3F(), gfx::PointF(),
gfx::Size(10, 10), true, false, true);
SetLayerPropertiesForTesting(child, identity, gfx::Point3F(), gfx::PointF(),
gfx::Size(10, 10), true, false, false);
SetLayerPropertiesForTesting(grand_child, identity, gfx::Point3F(),
gfx::PointF(), gfx::Size(10, 10), true, false,
false);
SetLayerPropertiesForTesting(great_grand_child, identity, gfx::Point3F(),
gfx::PointF(), gfx::Size(10, 10), true, false,
false);
// Add a transform animation with a start delay to |grand_child|.
scoped_ptr<Animation> animation = Animation::Create(
scoped_ptr<AnimationCurve>(new FakeTransformTransition(1.0)).Pass(), 0, 1,
Animation::TRANSFORM);
animation->set_fill_mode(Animation::FILL_MODE_NONE);
animation->set_time_offset(base::TimeDelta::FromMilliseconds(-1000));
grand_child->layer_animation_controller()->AddAnimation(animation.Pass());
ExecuteCalculateDrawProperties(parent);
EXPECT_FALSE(parent->screen_space_transform_is_animating());