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android / platform / external / chromium_org / 3551c9c / . / cc / trees / layer_tree_host_common_unittest.cc
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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 "cc/animation/layer_animation_controller.h"
#include "cc/base/math_util.h"
#include "cc/layers/content_layer.h"
#include "cc/layers/content_layer_client.h"
#include "cc/layers/heads_up_display_layer_impl.h"
#include "cc/layers/layer.h"
#include "cc/layers/layer_impl.h"
#include "cc/layers/render_surface.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_impl_proxy.h"
#include "cc/test/fake_layer_tree_host.h"
#include "cc/test/fake_layer_tree_host_impl.h"
#include "cc/test/geometry_test_utils.h"
#include "cc/trees/layer_tree_impl.h"
#include "cc/trees/proxy.h"
#include "cc/trees/single_thread_proxy.h"
#include "testing/gmock/include/gmock/gmock.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "ui/gfx/quad_f.h"
#include "ui/gfx/size_conversions.h"
#include "ui/gfx/transform.h"
namespace cc {
namespace {
class LayerTreeHostCommonTestBase {
protected:
template <typename LayerType>
void SetLayerPropertiesForTestingInternal(
LayerType* layer,
const gfx::Transform& transform,
const gfx::Transform& sublayer_transform,
gfx::PointF anchor,
gfx::PointF position,
gfx::Size bounds,
bool preserves3d) {
layer->SetTransform(transform);
layer->SetSublayerTransform(sublayer_transform);
layer->SetAnchorPoint(anchor);
layer->SetPosition(position);
layer->SetBounds(bounds);
layer->SetPreserves3d(preserves3d);
}
void SetLayerPropertiesForTesting(Layer* layer,
const gfx::Transform& transform,
const gfx::Transform& sublayer_transform,
gfx::PointF anchor,
gfx::PointF position,
gfx::Size bounds,
bool preserves3d) {
SetLayerPropertiesForTestingInternal<Layer>(layer,
transform,
sublayer_transform,
anchor,
position,
bounds,
preserves3d);
}
void SetLayerPropertiesForTesting(LayerImpl* layer,
const gfx::Transform& transform,
const gfx::Transform& sublayer_transform,
gfx::PointF anchor,
gfx::PointF position,
gfx::Size bounds,
bool preserves3d) {
SetLayerPropertiesForTestingInternal<LayerImpl>(layer,
transform,
sublayer_transform,
anchor,
position,
bounds,
preserves3d);
layer->SetContentBounds(bounds);
}
void ExecuteCalculateDrawProperties(Layer* root_layer,
float device_scale_factor,
float page_scale_factor,
Layer* page_scale_application_layer,
bool can_use_lcd_text) {
EXPECT_TRUE(page_scale_application_layer || (page_scale_factor == 1.f));
gfx::Transform identity_matrix;
gfx::Size device_viewport_size =
gfx::Size(root_layer->bounds().width() * device_scale_factor,
root_layer->bounds().height() * device_scale_factor);
render_surface_layer_list_.reset(new RenderSurfaceLayerList);
// We are probably not testing what is intended if the root_layer bounds are
// empty.
DCHECK(!root_layer->bounds().IsEmpty());
LayerTreeHostCommon::CalcDrawPropsMainInputsForTesting inputs(
root_layer, device_viewport_size, render_surface_layer_list_.get());
inputs.device_scale_factor = device_scale_factor;
inputs.page_scale_factor = page_scale_factor;
inputs.page_scale_application_layer = page_scale_application_layer;
inputs.can_use_lcd_text = can_use_lcd_text;
inputs.can_adjust_raster_scales = true;
LayerTreeHostCommon::CalculateDrawProperties(&inputs);
}
void ExecuteCalculateDrawProperties(LayerImpl* root_layer,
float device_scale_factor,
float page_scale_factor,
LayerImpl* page_scale_application_layer,
bool can_use_lcd_text) {
gfx::Transform identity_matrix;
LayerImplList dummy_render_surface_layer_list;
gfx::Size device_viewport_size =
gfx::Size(root_layer->bounds().width() * device_scale_factor,
root_layer->bounds().height() * device_scale_factor);
// We are probably not testing what is intended if the root_layer bounds are
// empty.
DCHECK(!root_layer->bounds().IsEmpty());
LayerTreeHostCommon::CalcDrawPropsImplInputsForTesting inputs(
root_layer, device_viewport_size, &dummy_render_surface_layer_list);
inputs.device_scale_factor = device_scale_factor;
inputs.page_scale_factor = page_scale_factor;
inputs.page_scale_application_layer = page_scale_application_layer;
inputs.can_use_lcd_text = can_use_lcd_text;
inputs.can_adjust_raster_scales = true;
LayerTreeHostCommon::CalculateDrawProperties(&inputs);
}
template <class LayerType>
void ExecuteCalculateDrawProperties(LayerType* root_layer) {
LayerType* page_scale_application_layer = NULL;
ExecuteCalculateDrawProperties(
root_layer, 1.f, 1.f, page_scale_application_layer, false);
}
template <class LayerType>
void ExecuteCalculateDrawProperties(LayerType* root_layer,
float device_scale_factor) {
LayerType* page_scale_application_layer = NULL;
ExecuteCalculateDrawProperties(root_layer,
device_scale_factor,
1.f,
page_scale_application_layer,
false);
}
template <class LayerType>
void ExecuteCalculateDrawProperties(LayerType* root_layer,
float device_scale_factor,
float page_scale_factor,
LayerType* page_scale_application_layer) {
ExecuteCalculateDrawProperties(root_layer,
device_scale_factor,
page_scale_factor,
page_scale_application_layer,
false);
}
private:
scoped_ptr<RenderSurfaceLayerList> render_surface_layer_list_;
};
class LayerTreeHostCommonTest : public LayerTreeHostCommonTestBase,
public testing::Test {
};
class LayerWithForcedDrawsContent : public Layer {
public:
LayerWithForcedDrawsContent() : Layer() {}
virtual bool DrawsContent() const OVERRIDE;
private:
virtual ~LayerWithForcedDrawsContent() {}
};
class LayerCanClipSelf : public Layer {
public:
LayerCanClipSelf() : Layer() {}
virtual bool DrawsContent() const OVERRIDE;
virtual bool CanClipSelf() const OVERRIDE;
private:
virtual ~LayerCanClipSelf() {}
};
bool LayerWithForcedDrawsContent::DrawsContent() const { return true; }
bool LayerCanClipSelf::DrawsContent() const { return true; }
bool LayerCanClipSelf::CanClipSelf() const { return true; }
class MockContentLayerClient : public ContentLayerClient {
public:
MockContentLayerClient() {}
virtual ~MockContentLayerClient() {}
virtual void PaintContents(SkCanvas* canvas,
gfx::Rect clip,
gfx::RectF* opaque) OVERRIDE {}
virtual void DidChangeLayerCanUseLCDText() OVERRIDE {}
};
scoped_refptr<ContentLayer> CreateDrawableContentLayer(
ContentLayerClient* delegate) {
scoped_refptr<ContentLayer> to_return = ContentLayer::Create(delegate);
to_return->SetIsDrawable(true);
return to_return;
}
#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)
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();
scoped_refptr<Layer> child = Layer::Create();
scoped_refptr<Layer> grand_child = Layer::Create();
parent->AddChild(child);
child->AddChild(grand_child);
scoped_ptr<FakeLayerTreeHost> host = FakeLayerTreeHost::Create();
host->SetRootLayer(parent);
gfx::Transform identity_matrix;
SetLayerPropertiesForTesting(parent.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(100, 100),
false);
SetLayerPropertiesForTesting(child.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(),
false);
SetLayerPropertiesForTesting(grand_child.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(),
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, TransformsForSingleLayer) {
gfx::Transform identity_matrix;
scoped_refptr<Layer> layer = Layer::Create();
scoped_refptr<Layer> root = Layer::Create();
SetLayerPropertiesForTesting(root.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(1, 2),
false);
root->AddChild(layer);
scoped_ptr<FakeLayerTreeHost> host = FakeLayerTreeHost::Create();
host->SetRootLayer(root);
// Case 1: setting the sublayer transform should not affect this layer's draw
// transform or screen-space transform.
gfx::Transform arbitrary_translation;
arbitrary_translation.Translate(10.0, 20.0);
SetLayerPropertiesForTesting(layer.get(),
identity_matrix,
arbitrary_translation,
gfx::PointF(),
gfx::PointF(),
gfx::Size(100, 100),
false);
ExecuteCalculateDrawProperties(root.get());
gfx::Transform expected_draw_transform = identity_matrix;
EXPECT_TRANSFORMATION_MATRIX_EQ(expected_draw_transform,
layer->draw_transform());
EXPECT_TRANSFORMATION_MATRIX_EQ(identity_matrix,
layer->screen_space_transform());
// 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,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(10, 12),
false);
ExecuteCalculateDrawProperties(root.get());
EXPECT_TRANSFORMATION_MATRIX_EQ(identity_matrix, layer->draw_transform());
EXPECT_TRANSFORMATION_MATRIX_EQ(identity_matrix,
layer->screen_space_transform());
// Case 3: The anchor point by itself (without a layer transform) should have
// no effect on the transforms.
SetLayerPropertiesForTesting(layer.get(),
identity_matrix,
identity_matrix,
gfx::PointF(0.25f, 0.25f),
gfx::PointF(),
gfx::Size(10, 12),
false);
ExecuteCalculateDrawProperties(root.get());
EXPECT_TRANSFORMATION_MATRIX_EQ(identity_matrix, layer->draw_transform());
EXPECT_TRANSFORMATION_MATRIX_EQ(identity_matrix,
layer->screen_space_transform());
// Case 4: A change in actual position affects both the draw transform and
// screen space transform.
gfx::Transform position_transform;
position_transform.Translate(0.0, 1.2);
SetLayerPropertiesForTesting(layer.get(),
identity_matrix,
identity_matrix,
gfx::PointF(0.25f, 0.25f),
gfx::PointF(0.f, 1.2f),
gfx::Size(10, 12),
false);
ExecuteCalculateDrawProperties(root.get());
EXPECT_TRANSFORMATION_MATRIX_EQ(position_transform, layer->draw_transform());
EXPECT_TRANSFORMATION_MATRIX_EQ(position_transform,
layer->screen_space_transform());
// 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,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(10, 12),
false);
ExecuteCalculateDrawProperties(root.get());
EXPECT_TRANSFORMATION_MATRIX_EQ(layer_transform, layer->draw_transform());
EXPECT_TRANSFORMATION_MATRIX_EQ(layer_transform,
layer->screen_space_transform());
// 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,
identity_matrix,
gfx::PointF(0.5f, 0.f),
gfx::PointF(),
gfx::Size(10, 12),
false);
ExecuteCalculateDrawProperties(root.get());
EXPECT_TRANSFORMATION_MATRIX_EQ(expected_result, layer->draw_transform());
EXPECT_TRANSFORMATION_MATRIX_EQ(expected_result,
layer->screen_space_transform());
// 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,
identity_matrix,
gfx::PointF(0.5f, 0.f),
gfx::PointF(0.f, 1.2f),
gfx::Size(10, 12),
false);
ExecuteCalculateDrawProperties(root.get());
EXPECT_TRANSFORMATION_MATRIX_EQ(expected_result, layer->draw_transform());
EXPECT_TRANSFORMATION_MATRIX_EQ(expected_result,
layer->screen_space_transform());
}
TEST_F(LayerTreeHostCommonTest, TransformsAboutScrollOffset) {
const gfx::Vector2d 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;
FakeImplProxy proxy;
FakeLayerTreeHostImpl host_impl(&proxy);
gfx::Transform identity_matrix;
scoped_ptr<LayerImpl> sublayer_scoped_ptr(
LayerImpl::Create(host_impl.active_tree(), 1));
LayerImpl* sublayer = sublayer_scoped_ptr.get();
sublayer->SetContentsScale(kPageScale * kDeviceScale,
kPageScale * kDeviceScale);
SetLayerPropertiesForTesting(sublayer,
identity_matrix,
identity_matrix,
gfx::Point(),
gfx::PointF(),
gfx::Size(500, 500),
false);
scoped_ptr<LayerImpl> scroll_layerScopedPtr(
LayerImpl::Create(host_impl.active_tree(), 2));
LayerImpl* scroll_layer = scroll_layerScopedPtr.get();
SetLayerPropertiesForTesting(scroll_layer,
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(10, 20),
false);
scroll_layer->SetScrollable(true);
scroll_layer->SetMaxScrollOffset(kMaxScrollOffset);
scroll_layer->SetScrollOffset(kScrollOffset);
scroll_layer->SetScrollDelta(kScrollDelta);
gfx::Transform impl_transform;
scroll_layer->AddChild(sublayer_scoped_ptr.Pass());
scoped_ptr<LayerImpl> root(LayerImpl::Create(host_impl.active_tree(), 3));
SetLayerPropertiesForTesting(root.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(3, 4),
false);
root->AddChild(scroll_layerScopedPtr.Pass());
ExecuteCalculateDrawProperties(
root.get(), kDeviceScale, kPageScale, scroll_layer->parent());
gfx::Transform expected_transform = identity_matrix;
gfx::PointF sub_layer_screen_position = kScrollLayerPosition - kScrollDelta;
sub_layer_screen_position.Scale(kPageScale * kDeviceScale);
expected_transform.Translate(MathUtil::Round(sub_layer_screen_position.x()),
MathUtil::Round(sub_layer_screen_position.y()));
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,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(10, 20),
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()),
MathUtil::Round(kTranslateY * kPageScale * kDeviceScale +
sub_layer_screen_position.y()));
EXPECT_TRANSFORMATION_MATRIX_EQ(expected_transform,
sublayer->draw_transform());
}
TEST_F(LayerTreeHostCommonTest, TransformsForSimpleHierarchy) {
gfx::Transform identity_matrix;
scoped_refptr<Layer> root = Layer::Create();
scoped_refptr<Layer> parent = Layer::Create();
scoped_refptr<Layer> child = Layer::Create();
scoped_refptr<Layer> grand_child = Layer::Create();
root->AddChild(parent);
parent->AddChild(child);
child->AddChild(grand_child);
scoped_ptr<FakeLayerTreeHost> host = FakeLayerTreeHost::Create();
host->SetRootLayer(root);
// One-time setup of root layer
SetLayerPropertiesForTesting(root.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(1, 2),
false);
// Case 1: parent's anchor point should not affect child or grand_child.
SetLayerPropertiesForTesting(parent.get(),
identity_matrix,
identity_matrix,
gfx::PointF(0.25f, 0.25f),
gfx::PointF(),
gfx::Size(10, 12),
false);
SetLayerPropertiesForTesting(child.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(16, 18),
false);
SetLayerPropertiesForTesting(grand_child.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(76, 78),
false);
ExecuteCalculateDrawProperties(root.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());
// Case 2: parent's position affects child and grand_child.
gfx::Transform parent_position_transform;
parent_position_transform.Translate(0.0, 1.2);
SetLayerPropertiesForTesting(parent.get(),
identity_matrix,
identity_matrix,
gfx::PointF(0.25f, 0.25f),
gfx::PointF(0.f, 1.2f),
gfx::Size(10, 12),
false);
SetLayerPropertiesForTesting(child.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(16, 18),
false);
SetLayerPropertiesForTesting(grand_child.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(76, 78),
false);
ExecuteCalculateDrawProperties(root.get());
EXPECT_TRANSFORMATION_MATRIX_EQ(parent_position_transform,
child->draw_transform());
EXPECT_TRANSFORMATION_MATRIX_EQ(parent_position_transform,
child->screen_space_transform());
EXPECT_TRANSFORMATION_MATRIX_EQ(parent_position_transform,
grand_child->draw_transform());
EXPECT_TRANSFORMATION_MATRIX_EQ(parent_position_transform,
grand_child->screen_space_transform());
// 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,
identity_matrix,
gfx::PointF(0.25f, 0.25f),
gfx::PointF(),
gfx::Size(10, 12),
false);
SetLayerPropertiesForTesting(child.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(16, 18),
false);
SetLayerPropertiesForTesting(grand_child.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(76, 78),
false);
ExecuteCalculateDrawProperties(root.get());
EXPECT_TRANSFORMATION_MATRIX_EQ(parent_composite_transform,
child->draw_transform());
EXPECT_TRANSFORMATION_MATRIX_EQ(parent_composite_transform,
child->screen_space_transform());
EXPECT_TRANSFORMATION_MATRIX_EQ(parent_composite_transform,
grand_child->draw_transform());
EXPECT_TRANSFORMATION_MATRIX_EQ(parent_composite_transform,
grand_child->screen_space_transform());
// Case 4: parent's sublayer matrix affects child and grandchild scaling is
// used here again so that the correct sequence of transforms is properly
// tested. Note that preserves3d is false, but the sublayer matrix should
// retain its 3D properties when given to child. But then, the child also
// does not preserve3D. When it gives its hierarchy to the grand_child, it
// should be flattened to 2D.
gfx::Transform parent_sublayer_matrix;
parent_sublayer_matrix.Scale3d(10.0, 10.0, 3.3);
// Sublayer matrix is applied to the anchor point of the parent layer.
parent_composite_transform =
parent_translation_to_anchor * parent_layer_transform *
Inverse(parent_translation_to_anchor) * parent_translation_to_anchor *
parent_sublayer_matrix * Inverse(parent_translation_to_anchor);
gfx::Transform flattened_composite_transform = parent_composite_transform;
flattened_composite_transform.FlattenTo2d();
SetLayerPropertiesForTesting(parent.get(),
parent_layer_transform,
parent_sublayer_matrix,
gfx::PointF(0.25f, 0.25f),
gfx::PointF(),
gfx::Size(10, 12),
false);
SetLayerPropertiesForTesting(child.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(16, 18),
false);
SetLayerPropertiesForTesting(grand_child.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(76, 78),
false);
ExecuteCalculateDrawProperties(root.get());
EXPECT_TRANSFORMATION_MATRIX_EQ(parent_composite_transform,
child->draw_transform());
EXPECT_TRANSFORMATION_MATRIX_EQ(parent_composite_transform,
child->screen_space_transform());
EXPECT_TRANSFORMATION_MATRIX_EQ(flattened_composite_transform,
grand_child->draw_transform());
EXPECT_TRANSFORMATION_MATRIX_EQ(flattened_composite_transform,
grand_child->screen_space_transform());
// Case 5: same as Case 4, except that child does preserve 3D, so the
// grand_child should receive the non-flattened composite transform.
SetLayerPropertiesForTesting(parent.get(),
parent_layer_transform,
parent_sublayer_matrix,
gfx::PointF(0.25f, 0.25f),
gfx::PointF(),
gfx::Size(10, 12),
false);
SetLayerPropertiesForTesting(child.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(16, 18),
true);
SetLayerPropertiesForTesting(grand_child.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(76, 78),
false);
ExecuteCalculateDrawProperties(root.get());
EXPECT_TRANSFORMATION_MATRIX_EQ(parent_composite_transform,
child->draw_transform());
EXPECT_TRANSFORMATION_MATRIX_EQ(parent_composite_transform,
child->screen_space_transform());
EXPECT_TRANSFORMATION_MATRIX_EQ(parent_composite_transform,
grand_child->draw_transform());
EXPECT_TRANSFORMATION_MATRIX_EQ(parent_composite_transform,
grand_child->screen_space_transform());
}
TEST_F(LayerTreeHostCommonTest, TransformsForSingleRenderSurface) {
scoped_refptr<Layer> root = Layer::Create();
scoped_refptr<Layer> parent = Layer::Create();
scoped_refptr<Layer> child = Layer::Create();
scoped_refptr<LayerWithForcedDrawsContent> grand_child =
make_scoped_refptr(new LayerWithForcedDrawsContent());
root->AddChild(parent);
parent->AddChild(child);
child->AddChild(grand_child);
scoped_ptr<FakeLayerTreeHost> host = FakeLayerTreeHost::Create();
host->SetRootLayer(root);
// One-time setup of root layer
gfx::Transform identity_matrix;
SetLayerPropertiesForTesting(root.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(1, 2),
false);
// Child is set up so that a new render surface should be created.
child->SetOpacity(0.5f);
child->SetForceRenderSurface(true);
gfx::Transform parent_layer_transform;
parent_layer_transform.Scale3d(1.0, 0.9, 1.0);
gfx::Transform parent_translation_to_anchor;
parent_translation_to_anchor.Translate(25.0, 30.0);
gfx::Transform parent_sublayer_matrix;
parent_sublayer_matrix.Scale3d(0.9, 1.0, 3.3);
gfx::Transform parent_composite_transform =
parent_translation_to_anchor * parent_layer_transform *
Inverse(parent_translation_to_anchor) * parent_translation_to_anchor *
parent_sublayer_matrix * 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);
// Child's render surface should not exist yet.
ASSERT_FALSE(child->render_surface());
SetLayerPropertiesForTesting(parent.get(),
parent_layer_transform,
parent_sublayer_matrix,
gfx::PointF(0.25f, 0.25f),
gfx::PointF(),
gfx::Size(100, 120),
false);
SetLayerPropertiesForTesting(child.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(16, 18),
false);
SetLayerPropertiesForTesting(grand_child.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(8, 10),
false);
ExecuteCalculateDrawProperties(root.get());
// 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, SublayerTransformWithAnchorPoint) {
// crbug.com/157961 - we were always applying the sublayer transform about
// the center of the layer, rather than the anchor point.
scoped_refptr<Layer> root = Layer::Create();
scoped_refptr<Layer> parent = Layer::Create();
scoped_refptr<LayerWithForcedDrawsContent> child =
make_scoped_refptr(new LayerWithForcedDrawsContent());
root->AddChild(parent);
parent->AddChild(child);
scoped_ptr<FakeLayerTreeHost> host = FakeLayerTreeHost::Create();
host->SetRootLayer(root);
gfx::Transform identity_matrix;
gfx::Transform parent_sublayer_matrix;
parent_sublayer_matrix.ApplyPerspectiveDepth(2.0);
gfx::PointF parent_anchor_point(0.2f, 0.8f);
SetLayerPropertiesForTesting(root.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(1, 2),
false);
SetLayerPropertiesForTesting(parent.get(),
identity_matrix,
parent_sublayer_matrix,
parent_anchor_point,
gfx::PointF(),
gfx::Size(100, 100),
false);
SetLayerPropertiesForTesting(child.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(10, 10),
false);
ExecuteCalculateDrawProperties(root.get());
gfx::Transform expected_child_draw_transform;
expected_child_draw_transform.Translate(20.0, 80.0);
expected_child_draw_transform.ApplyPerspectiveDepth(2.0);
expected_child_draw_transform.Translate(-20.0, -80.0);
EXPECT_TRANSFORMATION_MATRIX_EQ(expected_child_draw_transform,
child->draw_transform());
}
TEST_F(LayerTreeHostCommonTest, SeparateRenderTargetRequirementWithClipping) {
scoped_refptr<Layer> root = Layer::Create();
scoped_refptr<Layer> parent = Layer::Create();
scoped_refptr<Layer> child = Layer::Create();
scoped_refptr<Layer> grand_child = make_scoped_refptr(new LayerCanClipSelf());
root->AddChild(parent);
parent->AddChild(child);
child->AddChild(grand_child);
parent->SetMasksToBounds(true);
child->SetMasksToBounds(true);
scoped_ptr<FakeLayerTreeHost> host = FakeLayerTreeHost::Create();
host->SetRootLayer(root);
gfx::Transform identity_matrix;
gfx::Transform parent_layer_transform;
gfx::Transform parent_sublayer_matrix;
gfx::Transform child_layer_matrix;
// No render surface should exist yet.
EXPECT_FALSE(root->render_surface());
EXPECT_FALSE(parent->render_surface());
EXPECT_FALSE(child->render_surface());
EXPECT_FALSE(grand_child->render_surface());
// One-time setup of root layer
parent_layer_transform.Scale3d(1.0, 0.9, 1.0);
parent_sublayer_matrix.Scale3d(0.9, 1.0, 3.3);
child_layer_matrix.Rotate(20.0);
SetLayerPropertiesForTesting(root.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(1, 2),
false);
SetLayerPropertiesForTesting(parent.get(),
parent_layer_transform,
parent_sublayer_matrix,
gfx::PointF(0.25f, 0.25f),
gfx::PointF(),
gfx::Size(100, 120),
false);
SetLayerPropertiesForTesting(child.get(),
child_layer_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(16, 18),
false);
SetLayerPropertiesForTesting(grand_child.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(8, 10),
false);
ExecuteCalculateDrawProperties(root.get());
// Render surfaces should have been created according to clipping rules now
// (grandchild can clip self).
EXPECT_TRUE(root->render_surface());
EXPECT_FALSE(parent->render_surface());
EXPECT_FALSE(child->render_surface());
EXPECT_FALSE(grand_child->render_surface());
}
TEST_F(LayerTreeHostCommonTest,
SeparateRenderTargetRequirementWithoutClipping) {
scoped_refptr<Layer> root = Layer::Create();
scoped_refptr<Layer> parent = Layer::Create();
scoped_refptr<Layer> child = Layer::Create();
// This layer cannot clip itself, a feature we are testing here.
scoped_refptr<Layer> grand_child =
make_scoped_refptr(new LayerWithForcedDrawsContent());
root->AddChild(parent);
parent->AddChild(child);
child->AddChild(grand_child);
parent->SetMasksToBounds(true);
child->SetMasksToBounds(true);
scoped_ptr<FakeLayerTreeHost> host = FakeLayerTreeHost::Create();
host->SetRootLayer(root);
gfx::Transform identity_matrix;
gfx::Transform parent_layer_transform;
gfx::Transform parent_sublayer_matrix;
gfx::Transform child_layer_matrix;
// No render surface should exist yet.
EXPECT_FALSE(root->render_surface());
EXPECT_FALSE(parent->render_surface());
EXPECT_FALSE(child->render_surface());
EXPECT_FALSE(grand_child->render_surface());
// One-time setup of root layer
parent_layer_transform.Scale3d(1.0, 0.9, 1.0);
parent_sublayer_matrix.Scale3d(0.9, 1.0, 3.3);
child_layer_matrix.Rotate(20.0);
SetLayerPropertiesForTesting(root.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(1, 2),
false);
SetLayerPropertiesForTesting(parent.get(),
parent_layer_transform,
parent_sublayer_matrix,
gfx::PointF(0.25f, 0.25f),
gfx::PointF(),
gfx::Size(100, 120),
false);
SetLayerPropertiesForTesting(child.get(),
child_layer_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(16, 18),
false);
SetLayerPropertiesForTesting(grand_child.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(8, 10),
false);
ExecuteCalculateDrawProperties(root.get());
// Render surfaces should have been created according to clipping rules now
// (grandchild can't clip self).
EXPECT_TRUE(root->render_surface());
EXPECT_FALSE(parent->render_surface());
EXPECT_TRUE(child->render_surface());
EXPECT_FALSE(grand_child->render_surface());
}
TEST_F(LayerTreeHostCommonTest, TransformsForReplica) {
scoped_refptr<Layer> root = Layer::Create();
scoped_refptr<Layer> parent = Layer::Create();
scoped_refptr<Layer> child = Layer::Create();
scoped_refptr<Layer> child_replica = Layer::Create();
scoped_refptr<LayerWithForcedDrawsContent> grand_child =
make_scoped_refptr(new LayerWithForcedDrawsContent());
root->AddChild(parent);
parent->AddChild(child);
child->AddChild(grand_child);
child->SetReplicaLayer(child_replica.get());
scoped_ptr<FakeLayerTreeHost> host = FakeLayerTreeHost::Create();
host->SetRootLayer(root);
// One-time setup of root layer
gfx::Transform identity_matrix;
SetLayerPropertiesForTesting(root.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(1, 2),
false);
// 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_sublayer_matrix;
parent_sublayer_matrix.Scale3d(10.0, 10.0, 3.3);
gfx::Transform parent_composite_transform =
parent_translation_to_anchor * parent_layer_transform *
Inverse(parent_translation_to_anchor) * parent_translation_to_anchor *
parent_sublayer_matrix * 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's render surface should not exist yet.
ASSERT_FALSE(child->render_surface());
SetLayerPropertiesForTesting(parent.get(),
parent_layer_transform,
parent_sublayer_matrix,
gfx::PointF(0.25f, 0.25f),
gfx::PointF(),
gfx::Size(10, 12),
false);
SetLayerPropertiesForTesting(child.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(16, 18),
false);
SetLayerPropertiesForTesting(grand_child.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(-0.5f, -0.5f),
gfx::Size(1, 1),
false);
SetLayerPropertiesForTesting(child_replica.get(),
replica_layer_transform,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(),
false);
ExecuteCalculateDrawProperties(root.get());
// 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.
scoped_refptr<Layer> root = Layer::Create();
scoped_refptr<Layer> parent = Layer::Create();
scoped_refptr<Layer> render_surface1 = Layer::Create();
scoped_refptr<Layer> render_surface2 = Layer::Create();
scoped_refptr<Layer> child_of_root = Layer::Create();
scoped_refptr<Layer> child_of_rs1 = Layer::Create();
scoped_refptr<Layer> child_of_rs2 = Layer::Create();
scoped_refptr<Layer> replica_of_rs1 = Layer::Create();
scoped_refptr<Layer> replica_of_rs2 = Layer::Create();
scoped_refptr<Layer> grand_child_of_root = Layer::Create();
scoped_refptr<LayerWithForcedDrawsContent> grand_child_of_rs1 =
make_scoped_refptr(new LayerWithForcedDrawsContent());
scoped_refptr<LayerWithForcedDrawsContent> grand_child_of_rs2 =
make_scoped_refptr(new LayerWithForcedDrawsContent());
root->AddChild(parent);
parent->AddChild(render_surface1);
parent->AddChild(child_of_root);
render_surface1->AddChild(child_of_rs1);
render_surface1->AddChild(render_surface2);
render_surface2->AddChild(child_of_rs2);
child_of_root->AddChild(grand_child_of_root);
child_of_rs1->AddChild(grand_child_of_rs1);
child_of_rs2->AddChild(grand_child_of_rs2);
render_surface1->SetReplicaLayer(replica_of_rs1.get());
render_surface2->SetReplicaLayer(replica_of_rs2.get());
scoped_ptr<FakeLayerTreeHost> host = FakeLayerTreeHost::Create();
host->SetRootLayer(root);
// 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.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(1, 2),
false);
// 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,
// centered about the anchor point. matrix "B" is the sublayer transform used
// in all layers, centered about the center position of the layer. matrix "R"
// is the composite replica transform used in all replica layers.
//
// x component tests that layer_transform and sublayer_transform are done in
// the right order (translation and scale are noncommutative). y component
// has a translation by 1 for every ancestor, which indicates the "depth" of
// the layer in the hierarchy.
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 sublayer_transform;
sublayer_transform.Scale3d(10.0, 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 B = translation_to_anchor * sublayer_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 * B, 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 * B, 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.get(),
layer_transform,
sublayer_transform,
gfx::PointF(0.25f, 0.f),
gfx::PointF(),
gfx::Size(10, 10),
false);
SetLayerPropertiesForTesting(render_surface1.get(),
layer_transform,
sublayer_transform,
gfx::PointF(0.25f, 0.f),
gfx::PointF(),
gfx::Size(10, 10),
false);
SetLayerPropertiesForTesting(render_surface2.get(),
layer_transform,
sublayer_transform,
gfx::PointF(0.25f, 0.f),
gfx::PointF(),
gfx::Size(10, 10),
false);
SetLayerPropertiesForTesting(child_of_root.get(),
layer_transform,
sublayer_transform,
gfx::PointF(0.25f, 0.f),
gfx::PointF(),
gfx::Size(10, 10),
false);
SetLayerPropertiesForTesting(child_of_rs1.get(),
layer_transform,
sublayer_transform,
gfx::PointF(0.25f, 0.f),
gfx::PointF(),
gfx::Size(10, 10),
false);
SetLayerPropertiesForTesting(child_of_rs2.get(),
layer_transform,
sublayer_transform,
gfx::PointF(0.25f, 0.f),
gfx::PointF(),
gfx::Size(10, 10),
false);
SetLayerPropertiesForTesting(grand_child_of_root.get(),
layer_transform,
sublayer_transform,
gfx::PointF(0.25f, 0.f),
gfx::PointF(),
gfx::Size(10, 10),
false);
SetLayerPropertiesForTesting(grand_child_of_rs1.get(),
layer_transform,
sublayer_transform,
gfx::PointF(0.25f, 0.f),
gfx::PointF(),
gfx::Size(10, 10),
false);
SetLayerPropertiesForTesting(grand_child_of_rs2.get(),
layer_transform,
sublayer_transform,
gfx::PointF(0.25f, 0.f),
gfx::PointF(),
gfx::Size(10, 10),
false);
SetLayerPropertiesForTesting(replica_of_rs1.get(),
replica_layer_transform,
sublayer_transform,
gfx::PointF(0.25f, 0.f),
gfx::PointF(),
gfx::Size(),
false);
SetLayerPropertiesForTesting(replica_of_rs2.get(),
replica_layer_transform,
sublayer_transform,
gfx::PointF(0.25f, 0.f),
gfx::PointF(),
gfx::Size(),
false);
ExecuteCalculateDrawProperties(root.get());
// 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 * B * A, child_of_root->draw_transform());
EXPECT_TRANSFORMATION_MATRIX_EQ(A * B * A * B * A,
grand_child_of_root->draw_transform());
EXPECT_TRANSFORMATION_MATRIX_EQ(SS1, render_surface1->draw_transform());
EXPECT_TRANSFORMATION_MATRIX_EQ(SS1 * B * A, child_of_rs1->draw_transform());
EXPECT_TRANSFORMATION_MATRIX_EQ(SS1 * B * A * B * A,
grand_child_of_rs1->draw_transform());
EXPECT_TRANSFORMATION_MATRIX_EQ(SS2, render_surface2->draw_transform());
EXPECT_TRANSFORMATION_MATRIX_EQ(SS2 * B * A, child_of_rs2->draw_transform());
EXPECT_TRANSFORMATION_MATRIX_EQ(SS2 * B * A * B * 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 * B * A,
child_of_root->screen_space_transform());
EXPECT_TRANSFORMATION_MATRIX_EQ(
A * B * A * B * A, grand_child_of_root->screen_space_transform());
EXPECT_TRANSFORMATION_MATRIX_EQ(A * B * A,
render_surface1->screen_space_transform());
EXPECT_TRANSFORMATION_MATRIX_EQ(A * B * A * B * A,
child_of_rs1->screen_space_transform());
EXPECT_TRANSFORMATION_MATRIX_EQ(A * B * A * B * A * B * A,
grand_child_of_rs1->screen_space_transform());
EXPECT_TRANSFORMATION_MATRIX_EQ(A * B * A * B * A,
render_surface2->screen_space_transform());
EXPECT_TRANSFORMATION_MATRIX_EQ(A * B * A * B * A * B * A,
child_of_rs2->screen_space_transform());
EXPECT_TRANSFORMATION_MATRIX_EQ(A * B * A * B * A * B * A * B * 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 * B * A * S1, render_surface1->render_surface()->draw_transform());
EXPECT_TRANSFORMATION_MATRIX_EQ(
A * B * R * S1,
render_surface1->render_surface()->replica_draw_transform());
EXPECT_TRANSFORMATION_MATRIX_EQ(
A * B * A * S1,
render_surface1->render_surface()->screen_space_transform());
EXPECT_TRANSFORMATION_MATRIX_EQ(
A * B * 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 * B * A * S2, render_surface2->render_surface()->draw_transform());
EXPECT_TRANSFORMATION_MATRIX_EQ(
SS1 * B * R * S2,
render_surface2->render_surface()->replica_draw_transform());
EXPECT_TRANSFORMATION_MATRIX_EQ(
A * B * A * B * A * S2,
render_surface2->render_surface()->screen_space_transform());
EXPECT_TRANSFORMATION_MATRIX_EQ(
A * B * A * B * 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().getDouble(1, 3));
EXPECT_FLOAT_EQ(
2.0, child_of_root->screen_space_transform().matrix().getDouble(1, 3));
EXPECT_FLOAT_EQ(
3.0,
grand_child_of_root->screen_space_transform().matrix().getDouble(1, 3));
EXPECT_FLOAT_EQ(
2.0, render_surface1->screen_space_transform().matrix().getDouble(1, 3));
EXPECT_FLOAT_EQ(
3.0, child_of_rs1->screen_space_transform().matrix().getDouble(1, 3));
EXPECT_FLOAT_EQ(
4.0,
grand_child_of_rs1->screen_space_transform().matrix().getDouble(1, 3));
EXPECT_FLOAT_EQ(
3.0, render_surface2->screen_space_transform().matrix().getDouble(1, 3));
EXPECT_FLOAT_EQ(
4.0, child_of_rs2->screen_space_transform().matrix().getDouble(1, 3));
EXPECT_FLOAT_EQ(
5.0,
grand_child_of_rs2->screen_space_transform().matrix().getDouble(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.
scoped_refptr<Layer> root = Layer::Create();
scoped_refptr<Layer> child = Layer::Create();
scoped_refptr<LayerWithForcedDrawsContent> grand_child =
make_scoped_refptr(new LayerWithForcedDrawsContent());
gfx::Transform rotation_about_y_axis;
rotation_about_y_axis.RotateAboutYAxis(30.0);
const gfx::Transform identity_matrix;
SetLayerPropertiesForTesting(root.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(100, 100),
false);
SetLayerPropertiesForTesting(child.get(),
rotation_about_y_axis,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(10, 10),
false);
SetLayerPropertiesForTesting(grand_child.get(),
rotation_about_y_axis,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(10, 10),
false);
root->AddChild(child);
child->AddChild(grand_child);
child->SetForceRenderSurface(true);
scoped_ptr<FakeLayerTreeHost> host = FakeLayerTreeHost::Create();
host->SetRootLayer(root);
// No layers in this test should preserve 3d.
ASSERT_FALSE(root->preserves_3d());
ASSERT_FALSE(child->preserves_3d());
ASSERT_FALSE(grand_child->preserves_3d());
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;
ExecuteCalculateDrawProperties(root.get());
// 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());
}
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.
scoped_refptr<Layer> root = Layer::Create();
scoped_refptr<Layer> child = Layer::Create();
scoped_refptr<LayerWithForcedDrawsContent> grand_child =
make_scoped_refptr(new LayerWithForcedDrawsContent());
// 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.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(100, 100),
false);
SetLayerPropertiesForTesting(child.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(10, 0),
false);
SetLayerPropertiesForTesting(grand_child.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(10, 10),
false);
root->AddChild(child);
child->AddChild(grand_child);
child->SetForceRenderSurface(true);
scoped_ptr<FakeLayerTreeHost> host = FakeLayerTreeHost::Create();
host->SetRootLayer(root);
ExecuteCalculateDrawProperties(root.get());
ASSERT_TRUE(child->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;
scoped_refptr<Layer> root = Layer::Create();
scoped_refptr<Layer> child = Layer::Create();
child->SetScrollable(true);
root->AddChild(child);
scoped_ptr<FakeLayerTreeHost> host = FakeLayerTreeHost::Create();
host->SetRootLayer(root);
SetLayerPropertiesForTesting(root.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(20, 20),
false);
SetLayerPropertiesForTesting(child.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(20, 20),
false);
gfx::Transform translate;
translate.Translate(50, 50);
{
RenderSurfaceLayerList render_surface_layer_list;
LayerTreeHostCommon::CalcDrawPropsMainInputsForTesting inputs(
root.get(), root->bounds(), translate, &render_surface_layer_list);
inputs.can_adjust_raster_scales = 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);
{
RenderSurfaceLayerList render_surface_layer_list;
LayerTreeHostCommon::CalcDrawPropsMainInputsForTesting inputs(
root.get(), root->bounds(), scale, &render_surface_layer_list);
inputs.can_adjust_raster_scales = 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);
{
RenderSurfaceLayerList render_surface_layer_list;
LayerTreeHostCommon::CalcDrawPropsMainInputsForTesting inputs(
root.get(), root->bounds(), rotate, &render_surface_layer_list);
inputs.can_adjust_raster_scales = 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);
{
RenderSurfaceLayerList render_surface_layer_list;
LayerTreeHostCommon::CalcDrawPropsMainInputsForTesting inputs(
root.get(), root->bounds(), composite, &render_surface_layer_list);
inputs.can_adjust_raster_scales = 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;
{
RenderSurfaceLayerList render_surface_layer_list;
LayerTreeHostCommon::CalcDrawPropsMainInputsForTesting inputs(
root.get(), root->bounds(), translate, &render_surface_layer_list);
inputs.device_scale_factor = device_scale_factor;
inputs.can_adjust_raster_scales = 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;
{
RenderSurfaceLayerList render_surface_layer_list;
LayerTreeHostCommon::CalcDrawPropsMainInputsForTesting inputs(
root.get(), root->bounds(), translate, &render_surface_layer_list);
inputs.page_scale_factor = page_scale_factor;
inputs.page_scale_application_layer = root.get();
inputs.can_adjust_raster_scales = true;
LayerTreeHostCommon::CalculateDrawProperties(&inputs);
gfx::Transform page_scaled_translate = translate;
page_scaled_translate.Scale(page_scale_factor, page_scale_factor);
EXPECT_EQ(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);
root->SetSublayerTransform(composite);
{
RenderSurfaceLayerList render_surface_layer_list;
LayerTreeHostCommon::CalcDrawPropsMainInputsForTesting inputs(
root.get(), root->bounds(), composite, &render_surface_layer_list);
inputs.can_adjust_raster_scales = true;
LayerTreeHostCommon::CalculateDrawProperties(&inputs);
gfx::Transform compositeSquared = composite;
compositeSquared.ConcatTransform(composite);
gfx::Transform compositeCubed = compositeSquared;
compositeCubed.ConcatTransform(composite);
EXPECT_EQ(compositeSquared, root->draw_properties().target_space_transform);
EXPECT_EQ(compositeCubed, child->draw_properties().target_space_transform);
EXPECT_EQ(identity_matrix, root->render_surface()->draw_transform());
}
}
TEST_F(LayerTreeHostCommonTest,
RenderSurfaceListForRenderSurfaceWithClippedLayer) {
scoped_refptr<Layer> parent = Layer::Create();
scoped_refptr<Layer> render_surface1 = Layer::Create();
scoped_refptr<LayerWithForcedDrawsContent> child =
make_scoped_refptr(new LayerWithForcedDrawsContent());
scoped_ptr<FakeLayerTreeHost> host = FakeLayerTreeHost::Create();
host->SetRootLayer(parent);
const gfx::Transform identity_matrix;
SetLayerPropertiesForTesting(parent.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(10, 10),
false);
SetLayerPropertiesForTesting(render_surface1.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(10, 10),
false);
SetLayerPropertiesForTesting(child.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(30.f, 30.f),
gfx::Size(10, 10),
false);
parent->AddChild(render_surface1);
parent->SetMasksToBounds(true);
render_surface1->AddChild(child);
render_surface1->SetForceRenderSurface(true);
RenderSurfaceLayerList render_surface_layer_list;
LayerTreeHostCommon::CalcDrawPropsMainInputsForTesting inputs(
parent.get(),
parent->bounds(),
gfx::Transform(),
&render_surface_layer_list);
LayerTreeHostCommon::CalculateDrawProperties(&inputs);
// 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());
ASSERT_FALSE(render_surface1->render_surface());
EXPECT_EQ(1U, render_surface_layer_list.size());
}
TEST_F(LayerTreeHostCommonTest, RenderSurfaceListForTransparentChild) {
scoped_refptr<Layer> parent = Layer::Create();
scoped_refptr<Layer> render_surface1 = Layer::Create();
scoped_refptr<LayerWithForcedDrawsContent> child =
make_scoped_refptr(new LayerWithForcedDrawsContent());
scoped_ptr<FakeLayerTreeHost> host = FakeLayerTreeHost::Create();
host->SetRootLayer(parent);
const gfx::Transform identity_matrix;
SetLayerPropertiesForTesting(render_surface1.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(10, 10),
false);
SetLayerPropertiesForTesting(child.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(10, 10),
false);
parent->AddChild(render_surface1);
render_surface1->AddChild(child);
render_surface1->SetForceRenderSurface(true);
render_surface1->SetOpacity(0.f);
RenderSurfaceLayerList render_surface_layer_list;
LayerTreeHostCommon::CalcDrawPropsMainInputsForTesting inputs(
parent.get(), 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, ForceRenderSurface) {
scoped_refptr<Layer> parent = Layer::Create();
scoped_refptr<Layer> render_surface1 = Layer::Create();
scoped_refptr<LayerWithForcedDrawsContent> child =
make_scoped_refptr(new LayerWithForcedDrawsContent());
render_surface1->SetForceRenderSurface(true);
scoped_ptr<FakeLayerTreeHost> host = FakeLayerTreeHost::Create();
host->SetRootLayer(parent);
const gfx::Transform identity_matrix;
SetLayerPropertiesForTesting(parent.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(10, 10),
false);
SetLayerPropertiesForTesting(render_surface1.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(10, 10),
false);
SetLayerPropertiesForTesting(child.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(10, 10),
false);
parent->AddChild(render_surface1);
render_surface1->AddChild(child);
// Sanity check before the actual test
EXPECT_FALSE(parent->render_surface());
EXPECT_FALSE(render_surface1->render_surface());
{
RenderSurfaceLayerList render_surface_layer_list;
LayerTreeHostCommon::CalcDrawPropsMainInputsForTesting inputs(
parent.get(), parent->bounds(), &render_surface_layer_list);
inputs.can_adjust_raster_scales = true;
LayerTreeHostCommon::CalculateDrawProperties(&inputs);
// The root layer always creates a render surface
EXPECT_TRUE(parent->render_surface());
EXPECT_TRUE(render_surface1->render_surface());
EXPECT_EQ(2U, render_surface_layer_list.size());
}
{
RenderSurfaceLayerList render_surface_layer_list;
render_surface1->SetForceRenderSurface(false);
LayerTreeHostCommon::CalcDrawPropsMainInputsForTesting inputs(
parent.get(), parent->bounds(), &render_surface_layer_list);
inputs.can_adjust_raster_scales = true;
LayerTreeHostCommon::CalculateDrawProperties(&inputs);
EXPECT_TRUE(parent->render_surface());
EXPECT_FALSE(render_surface1->render_surface());
EXPECT_EQ(1U, render_surface_layer_list.size());
}
}
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.
//
const gfx::Transform identity_matrix;
scoped_refptr<Layer> parent = Layer::Create();
scoped_refptr<Layer> child = Layer::Create();
scoped_refptr<Layer> grand_child = Layer::Create();
scoped_refptr<Layer> great_grand_child = Layer::Create();
scoped_refptr<LayerWithForcedDrawsContent> leaf_node1 =
make_scoped_refptr(new LayerWithForcedDrawsContent());
scoped_refptr<LayerWithForcedDrawsContent> leaf_node2 =
make_scoped_refptr(new LayerWithForcedDrawsContent());
parent->AddChild(child);
child->AddChild(grand_child);
grand_child->AddChild(great_grand_child);
scoped_ptr<FakeLayerTreeHost> host = FakeLayerTreeHost::Create();
host->SetRootLayer(parent);
// 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.
child->AddChild(leaf_node1);
great_grand_child->AddChild(leaf_node2);
SetLayerPropertiesForTesting(parent.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(500, 500),
false);
SetLayerPropertiesForTesting(child.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(20, 20),
false);
SetLayerPropertiesForTesting(grand_child.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(45.f, 45.f),
gfx::Size(10, 10),
false);
SetLayerPropertiesForTesting(great_grand_child.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(10, 10),
false);
SetLayerPropertiesForTesting(leaf_node1.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(500, 500),
false);
SetLayerPropertiesForTesting(leaf_node2.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(20, 20),
false);
child->SetMasksToBounds(true);
child->SetOpacity(0.4f);
child->SetForceRenderSurface(true);
grand_child->SetOpacity(0.5f);
great_grand_child->SetOpacity(0.4f);
RenderSurfaceLayerList render_surface_layer_list;
LayerTreeHostCommon::CalcDrawPropsMainInputsForTesting inputs(
parent.get(), parent->bounds(), &render_surface_layer_list);
inputs.can_adjust_raster_scales = true;
LayerTreeHostCommon::CalculateDrawProperties(&inputs);
ASSERT_EQ(2U, render_surface_layer_list.size());
EXPECT_EQ(parent->id(), render_surface_layer_list.at(0)->id());
EXPECT_EQ(child->id(), render_surface_layer_list.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. When the render surface is animating its transforms, then
// the content rect's position in the clip rect is not defined on the main
// thread, and its content rect should not be clipped.
// 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. However, when we place an animation on the
// child, this clipping should be avoided and we should keep the grand_child
// in the render_surface_layer_list.
const gfx::Transform identity_matrix;
scoped_refptr<Layer> parent = Layer::Create();
scoped_refptr<Layer> child = Layer::Create();
scoped_refptr<Layer> grand_child = Layer::Create();
scoped_refptr<LayerWithForcedDrawsContent> leaf_node =
make_scoped_refptr(new LayerWithForcedDrawsContent());
parent->AddChild(child);
child->AddChild(grand_child);
grand_child->AddChild(leaf_node);
scoped_ptr<FakeLayerTreeHost> host = FakeLayerTreeHost::Create();
host->SetRootLayer(parent);
SetLayerPropertiesForTesting(parent.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(100, 100),
false);
SetLayerPropertiesForTesting(child.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(20, 20),
false);
SetLayerPropertiesForTesting(grand_child.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(200.f, 200.f),
gfx::Size(10, 10),
false);
SetLayerPropertiesForTesting(leaf_node.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(10, 10),
false);
parent->SetMasksToBounds(true);
child->SetOpacity(0.4f);
child->SetForceRenderSurface(true);
grand_child->SetOpacity(0.4f);
grand_child->SetForceRenderSurface(true);
{
RenderSurfaceLayerList render_surface_layer_list;
LayerTreeHostCommon::CalcDrawPropsMainInputsForTesting inputs(
parent.get(), parent->bounds(), &render_surface_layer_list);
inputs.can_adjust_raster_scales = true;
LayerTreeHostCommon::CalculateDrawProperties(&inputs);
// Without an animation, we should cull child and grand_child from the
// render_surface_layer_list.
ASSERT_EQ(1U, render_surface_layer_list.size());
EXPECT_EQ(parent->id(), render_surface_layer_list.at(0)->id());
}
// Now put an animating transform on child.
AddAnimatedTransformToController(
child->layer_animation_controller(), 10.0, 30, 0);
{
RenderSurfaceLayerList render_surface_layer_list;
LayerTreeHostCommon::CalcDrawPropsMainInputsForTesting inputs(
parent.get(), parent->bounds(), &render_surface_layer_list);
inputs.can_adjust_raster_scales = true;
LayerTreeHostCommon::CalculateDrawProperties(&inputs);
// With an animating transform, we should keep child and grand_child in the
// render_surface_layer_list.
ASSERT_EQ(3U, render_surface_layer_list.size());
EXPECT_EQ(parent->id(), render_surface_layer_list.at(0)->id());
EXPECT_EQ(child->id(), render_surface_layer_list.at(1)->id());
EXPECT_EQ(grand_child->id(), render_surface_layer_list.at(2)->id());
}
}
TEST_F(LayerTreeHostCommonTest, IsClippedIsSetCorrectly) {
// Layer'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;
scoped_refptr<Layer> root = Layer::Create();
scoped_refptr<Layer> parent = Layer::Create();
scoped_refptr<Layer> child1 = Layer::Create();
scoped_refptr<Layer> child2 = Layer::Create();
scoped_refptr<Layer> grand_child = Layer::Create();
scoped_refptr<LayerWithForcedDrawsContent> leaf_node1 =
make_scoped_refptr(new LayerWithForcedDrawsContent());
scoped_refptr<LayerWithForcedDrawsContent> leaf_node2 =
make_scoped_refptr(new LayerWithForcedDrawsContent());
root->AddChild(parent);
parent->AddChild(child1);
parent->AddChild(child2);
child1->AddChild(grand_child);
child2->AddChild(leaf_node2);
grand_child->AddChild(leaf_node1);
scoped_ptr<FakeLayerTreeHost> host = FakeLayerTreeHost::Create();
host->SetRootLayer(root);
child2->SetForceRenderSurface(true);
SetLayerPropertiesForTesting(root.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(100, 100),
false);
SetLayerPropertiesForTesting(parent.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(100, 100),
false);
SetLayerPropertiesForTesting(child1.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(100, 100),
false);
SetLayerPropertiesForTesting(child2.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(100, 100),
false);
SetLayerPropertiesForTesting(grand_child.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(100, 100),
false);
SetLayerPropertiesForTesting(leaf_node1.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(100, 100),
false);
SetLayerPropertiesForTesting(leaf_node2.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(100, 100),
false);
// Case 1: nothing is clipped except the root render surface.
{
RenderSurfaceLayerList render_surface_layer_list;
LayerTreeHostCommon::CalcDrawPropsMainInputsForTesting inputs(
root.get(), parent->bounds(), &render_surface_layer_list);
inputs.can_adjust_raster_scales = true;
LayerTreeHostCommon::CalculateDrawProperties(&inputs);
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.
{
RenderSurfaceLayerList render_surface_layer_list;
parent->SetMasksToBounds(true);
LayerTreeHostCommon::CalcDrawPropsMainInputsForTesting inputs(
root.get(), parent->bounds(), &render_surface_layer_list);
inputs.can_adjust_raster_scales = true;
LayerTreeHostCommon::CalculateDrawProperties(&inputs);
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());
}
// Case 3: child2 masksToBounds. The layer and subtree are clipped, and
// child2's render surface is not clipped.
{
RenderSurfaceLayerList render_surface_layer_list;
parent->SetMasksToBounds(false);
child2->SetMasksToBounds(true);
LayerTreeHostCommon::CalcDrawPropsMainInputsForTesting inputs(
root.get(), parent->bounds(), &render_surface_layer_list);
inputs.can_adjust_raster_scales = true;
LayerTreeHostCommon::CalculateDrawProperties(&inputs);
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, 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;
scoped_refptr<Layer> parent = Layer::Create();
scoped_refptr<Layer> child = Layer::Create();
scoped_refptr<Layer> grand_child1 = Layer::Create();
scoped_refptr<Layer> grand_child2 = Layer::Create();
scoped_refptr<Layer> grand_child3 = Layer::Create();
scoped_refptr<Layer> grand_child4 = Layer::Create();
parent->AddChild(child);
child->AddChild(grand_child1);
child->AddChild(grand_child2);
child->AddChild(grand_child3);
child->AddChild(grand_child4);
scoped_ptr<FakeLayerTreeHost> host = FakeLayerTreeHost::Create();
host->SetRootLayer(parent);
SetLayerPropertiesForTesting(parent.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(500, 500),
false);
SetLayerPropertiesForTesting(child.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(20, 20),
false);
SetLayerPropertiesForTesting(grand_child1.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(5.f, 5.f),
gfx::Size(10, 10),
false);
SetLayerPropertiesForTesting(grand_child2.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(15.f, 15.f),
gfx::Size(10, 10),
false);
SetLayerPropertiesForTesting(grand_child3.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(15.f, 15.f),
gfx::Size(10, 10),
false);
SetLayerPropertiesForTesting(grand_child4.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(45.f, 45.f),
gfx::Size(10, 10),
false);
child->SetMasksToBounds(true);
grand_child3->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);
RenderSurfaceLayerList render_surface_layer_list;
LayerTreeHostCommon::CalcDrawPropsMainInputsForTesting inputs(
parent.get(), parent->bounds(), &render_surface_layer_list);
inputs.can_adjust_raster_scales = true;
LayerTreeHostCommon::CalculateDrawProperties(&inputs);
EXPECT_RECT_EQ(gfx::Rect(5, 5, 10, 10),
grand_child1->drawable_content_rect());
EXPECT_RECT_EQ(gfx::Rect(15, 15, 5, 5),
grand_child3->drawable_content_rect());
EXPECT_RECT_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.
const gfx::Transform identity_matrix;
scoped_refptr<Layer> parent = Layer::Create();
scoped_refptr<Layer> child = Layer::Create();
scoped_refptr<Layer> grand_child1 = Layer::Create();
scoped_refptr<Layer> grand_child2 = Layer::Create();
scoped_refptr<Layer> grand_child3 = Layer::Create();
scoped_refptr<Layer> grand_child4 = Layer::Create();
scoped_refptr<LayerWithForcedDrawsContent> leaf_node1 =
make_scoped_refptr(new LayerWithForcedDrawsContent());
scoped_refptr<LayerWithForcedDrawsContent> leaf_node2 =
make_scoped_refptr(new LayerWithForcedDrawsContent());
scoped_refptr<LayerWithForcedDrawsContent> leaf_node3 =
make_scoped_refptr(new LayerWithForcedDrawsContent());
scoped_refptr<LayerWithForcedDrawsContent> leaf_node4 =
make_scoped_refptr(new LayerWithForcedDrawsContent());
parent->AddChild(child);
child->AddChild(grand_child1);
child->AddChild(grand_child2);
child->AddChild(grand_child3);
child->AddChild(grand_child4);
scoped_ptr<FakeLayerTreeHost> host = FakeLayerTreeHost::Create();
host->SetRootLayer(parent);
// the leaf nodes ensure that these grand_children become render surfaces for
// this test.
grand_child1->AddChild(leaf_node1);
grand_child2->AddChild(leaf_node2);
grand_child3->AddChild(leaf_node3);
grand_child4->AddChild(leaf_node4);
SetLayerPropertiesForTesting(parent.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(500, 500),
false);
SetLayerPropertiesForTesting(child.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(20, 20),
false);
SetLayerPropertiesForTesting(grand_child1.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(5.f, 5.f),
gfx::Size(10, 10),
false);
SetLayerPropertiesForTesting(grand_child2.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(15.f, 15.f),
gfx::Size(10, 10),
false);
SetLayerPropertiesForTesting(grand_child3.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(15.f, 15.f),
gfx::Size(10, 10),
false);
SetLayerPropertiesForTesting(grand_child4.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(45.f, 45.f),
gfx::Size(10, 10),
false);
SetLayerPropertiesForTesting(leaf_node1.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(10, 10),
false);
SetLayerPropertiesForTesting(leaf_node2.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(10, 10),
false);
SetLayerPropertiesForTesting(leaf_node3.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(10, 10),
false);
SetLayerPropertiesForTesting(leaf_node4.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(10, 10),
false);
child->SetMasksToBounds(true);
grand_child3->SetMasksToBounds(true);
grand_child4->SetMasksToBounds(true);
// Force everyone to be a render surface.
child->SetOpacity(0.4f);
child->SetForceRenderSurface(true);
grand_child1->SetOpacity(0.5f);
grand_child1->SetForceRenderSurface(true);
grand_child2->SetOpacity(0.5f);
grand_child2->SetForceRenderSurface(true);
grand_child3->SetOpacity(0.5f);
grand_child3->SetForceRenderSurface(true);
grand_child4->SetOpacity(0.5f);
grand_child4->SetForceRenderSurface(true);
RenderSurfaceLayerList render_surface_layer_list;
LayerTreeHostCommon::CalcDrawPropsMainInputsForTesting inputs(
parent.get(), parent->bounds(), &render_surface_layer_list);
inputs.can_adjust_raster_scales = true;
LayerTreeHostCommon::CalculateDrawProperties(&inputs);
ASSERT_TRUE(grand_child1->render_surface());
ASSERT_TRUE(grand_child2->render_surface());
ASSERT_TRUE(grand_child3->render_surface());
// Because grand_child4 is entirely clipped, it is expected to not have a
// render surface.
EXPECT_FALSE(grand_child4->render_surface());
// Surfaces are clipped by their parent, but un-affected by the owning layer's
// masksToBounds.
EXPECT_RECT_EQ(gfx::Rect(0, 0, 20, 20),
grand_child1->render_surface()->clip_rect());
EXPECT_RECT_EQ(gfx::Rect(0, 0, 20, 20),
grand_child2->render_surface()->clip_rect());
EXPECT_RECT_EQ(gfx::Rect(0, 0, 20, 20),
grand_child3->render_surface()->clip_rect());
}
TEST_F(LayerTreeHostCommonTest, AnimationsForRenderSurfaceHierarchy) {
scoped_refptr<Layer> parent = Layer::Create();
scoped_refptr<Layer> render_surface1 = Layer::Create();
scoped_refptr<Layer> render_surface2 = Layer::Create();
scoped_refptr<Layer> child_of_root = Layer::Create();
scoped_refptr<Layer> child_of_rs1 = Layer::Create();
scoped_refptr<Layer> child_of_rs2 = Layer::Create();
scoped_refptr<Layer> grand_child_of_root = Layer::Create();
scoped_refptr<LayerWithForcedDrawsContent> grand_child_of_rs1 =
make_scoped_refptr(new LayerWithForcedDrawsContent());
scoped_refptr<LayerWithForcedDrawsContent> grand_child_of_rs2 =
make_scoped_refptr(new LayerWithForcedDrawsContent());
parent->AddChild(render_surface1);
parent->AddChild(child_of_root);
render_surface1->AddChild(child_of_rs1);
render_surface1->AddChild(render_surface2);
render_surface2->AddChild(child_of_rs2);
child_of_root->AddChild(grand_child_of_root);
child_of_rs1->AddChild(grand_child_of_rs1);
child_of_rs2->AddChild(grand_child_of_rs2);
scoped_ptr<FakeLayerTreeHost> host = FakeLayerTreeHost::Create();
host->SetRootLayer(parent);
// Make our render surfaces.
render_surface1->SetForceRenderSurface(true);
render_surface2->SetForceRenderSurface(true);
gfx::Transform layer_transform;
layer_transform.Translate(1.0, 1.0);
gfx::Transform sublayer_transform;
sublayer_transform.Scale3d(10.0, 1.0, 1.0);
SetLayerPropertiesForTesting(parent.get(),
layer_transform,
sublayer_transform,
gfx::PointF(0.25f, 0.f),
gfx::PointF(2.5f, 0.f),
gfx::Size(10, 10),
false);
SetLayerPropertiesForTesting(render_surface1.get(),
layer_transform,
sublayer_transform,
gfx::PointF(0.25f, 0.f),
gfx::PointF(2.5f, 0.f),
gfx::Size(10, 10),
false);
SetLayerPropertiesForTesting(render_surface2.get(),
layer_transform,
sublayer_transform,
gfx::PointF(0.25f, 0.f),
gfx::PointF(2.5f, 0.f),
gfx::Size(10, 10),
false);
SetLayerPropertiesForTesting(child_of_root.get(),
layer_transform,
sublayer_transform,
gfx::PointF(0.25f, 0.f),
gfx::PointF(2.5f, 0.f),
gfx::Size(10, 10),
false);
SetLayerPropertiesForTesting(child_of_rs1.get(),
layer_transform,
sublayer_transform,
gfx::PointF(0.25f, 0.f),
gfx::PointF(2.5f, 0.f),
gfx::Size(10, 10),
false);
SetLayerPropertiesForTesting(child_of_rs2.get(),
layer_transform,
sublayer_transform,
gfx::PointF(0.25f, 0.f),
gfx::PointF(2.5f, 0.f),
gfx::Size(10, 10),
false);
SetLayerPropertiesForTesting(grand_child_of_root.get(),
layer_transform,
sublayer_transform,
gfx::PointF(0.25f, 0.f),
gfx::PointF(2.5f, 0.f),
gfx::Size(10, 10),
false);
SetLayerPropertiesForTesting(grand_child_of_rs1.get(),
layer_transform,
sublayer_transform,
gfx::PointF(0.25f, 0.f),
gfx::PointF(2.5f, 0.f),
gfx::Size(10, 10),
false);
SetLayerPropertiesForTesting(grand_child_of_rs2.get(),
layer_transform,
sublayer_transform,
gfx::PointF(0.25f, 0.f),
gfx::PointF(2.5f, 0.f),
gfx::Size(10, 10),
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.get());
// 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 draw_opacity_is_animating values
EXPECT_FALSE(parent->draw_opacity_is_animating());
EXPECT_FALSE(child_of_root->draw_opacity_is_animating());
EXPECT_TRUE(grand_child_of_root->draw_opacity_is_animating());
EXPECT_FALSE(render_surface1->draw_opacity_is_animating());
EXPECT_TRUE(render_surface1->render_surface()->draw_opacity_is_animating());
EXPECT_FALSE(child_of_rs1->draw_opacity_is_animating());
EXPECT_FALSE(grand_child_of_rs1->draw_opacity_is_animating());
EXPECT_FALSE(render_surface2->draw_opacity_is_animating());
EXPECT_FALSE(render_surface2->render_surface()->draw_opacity_is_animating());
EXPECT_FALSE(child_of_rs2->draw_opacity_is_animating());
EXPECT_FALSE(grand_child_of_rs2->draw_opacity_is_animating());
// Verify draw_transform_is_animating values
EXPECT_FALSE(parent->draw_transform_is_animating());
EXPECT_FALSE(child_of_root->draw_transform_is_animating());
EXPECT_TRUE(grand_child_of_root->draw_transform_is_animating());
EXPECT_FALSE(render_surface1->draw_transform_is_animating());
EXPECT_FALSE(render_surface1->render_surface()
->target_surface_transforms_are_animating());
EXPECT_FALSE(child_of_rs1->draw_transform_is_animating());
EXPECT_FALSE(grand_child_of_rs1->draw_transform_is_animating());
EXPECT_FALSE(render_surface2->draw_transform_is_animating());
EXPECT_TRUE(render_surface2->render_surface()
->target_surface_transforms_are_animating());
EXPECT_FALSE(child_of_rs2->draw_transform_is_animating());
EXPECT_TRUE(grand_child_of_rs2->draw_transform_is_animating());
// 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(render_surface1->render_surface()
->screen_space_transforms_are_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(render_surface2->render_surface()
->screen_space_transforms_are_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().getDouble(1, 3));
EXPECT_FLOAT_EQ(
2.0, child_of_root->screen_space_transform().matrix().getDouble(1, 3));
EXPECT_FLOAT_EQ(
3.0,
grand_child_of_root->screen_space_transform().matrix().getDouble(1, 3));
EXPECT_FLOAT_EQ(
2.0, render_surface1->screen_space_transform().matrix().getDouble(1, 3));
EXPECT_FLOAT_EQ(
3.0, child_of_rs1->screen_space_transform().matrix().getDouble(1, 3));
EXPECT_FLOAT_EQ(
4.0,
grand_child_of_rs1->screen_space_transform().matrix().getDouble(1, 3));
EXPECT_FLOAT_EQ(
3.0, render_surface2->screen_space_transform().matrix().getDouble(1, 3));
EXPECT_FLOAT_EQ(
4.0, child_of_rs2->screen_space_transform().matrix().getDouble(1, 3));
EXPECT_FLOAT_EQ(
5.0,
grand_child_of_rs2->screen_space_transform().matrix().getDouble(1, 3));
}
TEST_F(LayerTreeHostCommonTest, VisibleRectForIdentityTransform) {
// Test the calculateVisibleRect() function works correctly for identity
// transforms.
gfx::Rect target_surface_rect = gfx::Rect(0, 0, 100, 100);
gfx::Transform layer_to_surface_transform;
// Case 1: Layer is contained within the surface.
gfx::Rect layer_content_rect = gfx::Rect(10, 10, 30, 30);
gfx::Rect expected = gfx::Rect(10, 10, 30, 30);
gfx::Rect actual = LayerTreeHostCommon::CalculateVisibleRect(
target_surface_rect, layer_content_rect, layer_to_surface_transform);
EXPECT_RECT_EQ(expected, actual);
// Case 2: Layer is outside the surface rect.
layer_content_rect = gfx::Rect(120, 120, 30, 30);
actual = LayerTreeHostCommon::CalculateVisibleRect(
target_surface_rect, layer_content_rect, layer_to_surface_transform);
EXPECT_TRUE(actual.IsEmpty());
// Case 3: Layer is partially overlapping the surface rect.
layer_content_rect = gfx::Rect(80, 80, 30, 30);
expected = gfx::Rect(80, 80, 20, 20);
actual = LayerTreeHostCommon::CalculateVisibleRect(
target_surface_rect, layer_content_rect, layer_to_surface_transform);
EXPECT_RECT_EQ(expected, actual);
}
TEST_F(LayerTreeHostCommonTest, VisibleRectForTranslations) {
// Test the calculateVisibleRect() function works correctly for scaling
// transforms.
gfx::Rect target_surface_rect = gfx::Rect(0, 0, 100, 100);
gfx::Rect layer_content_rect = gfx::Rect(0, 0, 30, 30);
gfx::Transform layer_to_surface_transform;
// Case 1: Layer is contained within the surface.
layer_to_surface_transform.MakeIdentity();
layer_to_surface_transform.Translate(10.0, 10.0);
gfx::Rect expected = gfx::Rect(0, 0, 30, 30);
gfx::Rect actual = LayerTreeHostCommon::CalculateVisibleRect(
target_surface_rect, layer_content_rect, layer_to_surface_transform);
EXPECT_RECT_EQ(expected, actual);
// Case 2: Layer is outside the surface rect.
layer_to_surface_transform.MakeIdentity();
layer_to_surface_transform.Translate(120.0, 120.0);
actual = LayerTreeHostCommon::CalculateVisibleRect(
target_surface_rect, layer_content_rect, layer_to_surface_transform);
EXPECT_TRUE(actual.IsEmpty());
// Case 3: Layer is partially overlapping the surface rect.
layer_to_surface_transform.MakeIdentity();
layer_to_surface_transform.Translate(80.0, 80.0);
expected = gfx::Rect(0, 0, 20, 20);
actual = LayerTreeHostCommon::CalculateVisibleRect(
target_surface_rect, layer_content_rect, layer_to_surface_transform);
EXPECT_RECT_EQ(expected, actual);
}
TEST_F(LayerTreeHostCommonTest, VisibleRectFor2DRotations) {
// Test the calculateVisibleRect() function works correctly for rotations
// about z-axis (i.e. 2D rotations). Remember that calculateVisibleRect()
// should return the g in the layer's space.
gfx::Rect target_surface_rect = gfx::Rect(0, 0, 100, 100);
gfx::Rect layer_content_rect = gfx::Rect(0, 0, 30, 30);
gfx::Transform layer_to_surface_transform;
// Case 1: Layer is contained within the surface.
layer_to_surface_transform.MakeIdentity();
layer_to_surface_transform.Translate(50.0, 50.0);
layer_to_surface_transform.Rotate(45.0);
gfx::Rect expected = gfx::Rect(0, 0, 30, 30);
gfx::Rect actual = LayerTreeHostCommon::CalculateVisibleRect(
target_surface_rect, layer_content_rect, layer_to_surface_transform);
EXPECT_RECT_EQ(expected, actual);
// Case 2: Layer is outside the surface rect.
layer_to_surface_transform.MakeIdentity();
layer_to_surface_transform.Translate(-50.0, 0.0);
layer_to_surface_transform.Rotate(45.0);
actual = LayerTreeHostCommon::CalculateVisibleRect(
target_surface_rect, layer_content_rect, layer_to_surface_transform);
EXPECT_TRUE(actual.IsEmpty());
// Case 3: The layer is rotated about its top-left corner. In surface space,
// the layer is oriented diagonally, with the left half outside of the render
// surface. In this case, the g should still be the entire layer
// (remember the g is computed in layer space); both the top-left
// and bottom-right corners of the layer are still visible.
layer_to_surface_transform.MakeIdentity();
layer_to_surface_transform.Rotate(45.0);
expected = gfx::Rect(0, 0, 30, 30);
actual = LayerTreeHostCommon::CalculateVisibleRect(
target_surface_rect, layer_content_rect, layer_to_surface_transform);
EXPECT_RECT_EQ(expected, actual);
// Case 4: The layer is rotated about its top-left corner, and translated
// upwards. In surface space, the layer is oriented diagonally, with only the
// top corner of the surface overlapping the layer. In layer space, the render
// surface overlaps the right side of the layer. The g should be
// the layer's right half.
layer_to_surface_transform.MakeIdentity();
layer_to_surface_transform.Translate(0.0, -sqrt(2.0) * 15.0);
layer_to_surface_transform.Rotate(45.0);
expected = gfx::Rect(15, 0, 15, 30); // Right half of layer bounds.
actual = LayerTreeHostCommon::CalculateVisibleRect(
target_surface_rect, layer_content_rect, layer_to_surface_transform);
EXPECT_RECT_EQ(expected, actual);
}
TEST_F(LayerTreeHostCommonTest, VisibleRectFor3dOrthographicTransform) {
// Test that the calculateVisibleRect() function works correctly for 3d
// transforms.
gfx::Rect target_surface_rect = gfx::Rect(0, 0, 100, 100);
gfx::Rect layer_content_rect = gfx::Rect(0, 0, 100, 100);
gfx::Transform layer_to_surface_transform;
// Case 1: Orthographic projection of a layer rotated about y-axis by 45
// degrees, should be fully contained in the render surface.
layer_to_surface_transform.MakeIdentity();
layer_to_surface_transform.RotateAboutYAxis(45.0);
gfx::Rect expected = gfx::Rect(0, 0, 100, 100);
gfx::Rect actual = LayerTreeHostCommon::CalculateVisibleRect(
target_surface_rect, layer_content_rect, layer_to_surface_transform);
EXPECT_RECT_EQ(expected, actual);
// Case 2: Orthographic projection of a layer rotated about y-axis by 45
// degrees, but shifted to the side so only the right-half the layer would be
// visible on the surface.
// 100 is the un-rotated layer width; divided by sqrt(2) is the rotated width.
double half_width_of_rotated_layer = (100.0 / sqrt(2.0)) * 0.5;
layer_to_surface_transform.MakeIdentity();
layer_to_surface_transform.Translate(-half_width_of_rotated_layer, 0.0);
layer_to_surface_transform.RotateAboutYAxis(45.0); // Rotates about the left
// edge of the layer.
expected = gfx::Rect(50, 0, 50, 100); // Tight half of the layer.
actual = LayerTreeHostCommon::CalculateVisibleRect(
target_surface_rect, layer_content_rect, layer_to_surface_transform);
EXPECT_RECT_EQ(expected, actual);
}
TEST_F(LayerTreeHostCommonTest, VisibleRectFor3dPerspectiveTransform) {
// Test the calculateVisibleRect() function works correctly when the layer has
// a perspective projection onto the target surface.
gfx::Rect target_surface_rect = gfx::Rect(0, 0, 100, 100);
gfx::Rect layer_content_rect = gfx::Rect(-50, -50, 200, 200);
gfx::Transform layer_to_surface_transform;
// Case 1: Even though the layer is twice as large as the surface, due to
// perspective foreshortening, the layer will fit fully in the surface when
// its translated more than the perspective amount.
layer_to_surface_transform.MakeIdentity();
// The following sequence of transforms applies the perspective about the
// center of the surface.
layer_to_surface_transform.Translate(50.0, 50.0);
layer_to_surface_transform.ApplyPerspectiveDepth(9.0);
layer_to_surface_transform.Translate(-50.0, -50.0);
// This translate places the layer in front of the surface's projection plane.
layer_to_surface_transform.Translate3d(0.0, 0.0, -27.0);
gfx::Rect expected = gfx::Rect(-50, -50, 200, 200);
gfx::Rect actual = LayerTreeHostCommon::CalculateVisibleRect(
target_surface_rect, layer_content_rect, layer_to_surface_transform);
EXPECT_RECT_EQ(expected, actual);
// Case 2: same projection as before, except that the layer is also translated
// to the side, so that only the right half of the layer should be visible.
//
// Explanation of expected result: The perspective ratio is (z distance
// between layer and camera origin) / (z distance between projection plane and
// camera origin) == ((-27 - 9) / 9) Then, by similar triangles, if we want to
// move a layer by translating -50 units in projected surface units (so that
// only half of it is visible), then we would need to translate by (-36 / 9) *
// -50 == -200 in the layer's units.
layer_to_surface_transform.Translate3d(-200.0, 0.0, 0.0);
expected = gfx::Rect(gfx::Point(50, -50),
gfx::Size(100, 200)); // The right half of the layer's
// bounding rect.
actual = LayerTreeHostCommon::CalculateVisibleRect(
target_surface_rect, layer_content_rect, layer_to_surface_transform);
EXPECT_RECT_EQ(expected, actual);
}
TEST_F(LayerTreeHostCommonTest,
VisibleRectFor3dOrthographicIsNotClippedBehindSurface) {
// There is currently no explicit concept of an orthographic projection plane
// in our code (nor in the CSS spec to my knowledge). Therefore, layers that
// are technically behind the surface in an orthographic world should not be
// clipped when they are flattened to the surface.
gfx::Rect target_surface_rect = gfx::Rect(0, 0, 100, 100);
gfx::Rect layer_content_rect = gfx::Rect(0, 0, 100, 100);
gfx::Transform layer_to_surface_transform;
// This sequence of transforms effectively rotates the layer about the y-axis
// at the center of the layer.
layer_to_surface_transform.MakeIdentity();
layer_to_surface_transform.Translate(50.0, 0.0);
layer_to_surface_transform.RotateAboutYAxis(45.0);
layer_to_surface_transform.Translate(-50.0, 0.0);
gfx::Rect expected = gfx::Rect(0, 0, 100, 100);
gfx::Rect actual = LayerTreeHostCommon::CalculateVisibleRect(
target_surface_rect, layer_content_rect, layer_to_surface_transform);
EXPECT_RECT_EQ(expected, actual);
}
TEST_F(LayerTreeHostCommonTest, VisibleRectFor3dPerspectiveWhenClippedByW) {
// Test the calculateVisibleRect() function works correctly when projecting a
// surface onto a layer, but the layer is partially behind the camera (not
// just behind the projection plane). In this case, the cartesian coordinates
// may seem to be valid, but actually they are not. The visible rect needs to
// be properly clipped by the w = 0 plane in homogeneous coordinates before
// converting to cartesian coordinates.
gfx::Rect target_surface_rect = gfx::Rect(-50, -50, 100, 100);
gfx::Rect layer_content_rect = gfx::Rect(-10, -1, 20, 2);
gfx::Transform layer_to_surface_transform;
// The layer is positioned so that the right half of the layer should be in
// front of the camera, while the other half is behind the surface's
// projection plane. The following sequence of transforms applies the
// perspective and rotation about the center of the layer.
layer_to_surface_transform.MakeIdentity();
layer_to_surface_transform.ApplyPerspectiveDepth(1.0);
layer_to_surface_transform.Translate3d(-2.0, 0.0, 1.0);
layer_to_surface_transform.RotateAboutYAxis(45.0);
// Sanity check that this transform does indeed cause w < 0 when applying the
// transform, otherwise this code is not testing the intended scenario.
bool clipped;
MathUtil::MapQuad(layer_to_surface_transform,
gfx::QuadF(gfx::RectF(layer_content_rect)),
&clipped);
ASSERT_TRUE(clipped);
int expected_x_position = 0;
int expected_width = 10;
gfx::Rect actual = LayerTreeHostCommon::CalculateVisibleRect(
target_surface_rect, layer_content_rect, layer_to_surface_transform);
EXPECT_EQ(expected_x_position, actual.x());
EXPECT_EQ(expected_width, actual.width());
}
TEST_F(LayerTreeHostCommonTest, VisibleRectForPerspectiveUnprojection) {
// To determine visible rect in layer space, there needs to be an
// un-projection from surface space to layer space. When the original
// transform was a perspective projection that was clipped, it returns a rect
// that encloses the clipped bounds. Un-projecting this new rect may require
// clipping again.
// This sequence of transforms causes one corner of the layer to protrude
// across the w = 0 plane, and should be clipped.
gfx::Rect target_surface_rect = gfx::Rect(-50, -50, 100, 100);
gfx::Rect layer_content_rect = gfx::Rect(-10, -10, 20, 20);
gfx::Transform layer_to_surface_transform;
layer_to_surface_transform.MakeIdentity();
layer_to_surface_transform.ApplyPerspectiveDepth(1.0);
layer_to_surface_transform.Translate3d(0.0, 0.0, -5.0);
layer_to_surface_transform.RotateAboutYAxis(45.0);
layer_to_surface_transform.RotateAboutXAxis(80.0);
// Sanity check that un-projection does indeed cause w < 0, otherwise this
// code is not testing the intended scenario.
bool clipped;
gfx::RectF clipped_rect =
MathUtil::MapClippedRect(layer_to_surface_transform, layer_content_rect);
MathUtil::ProjectQuad(
Inverse(layer_to_surface_transform), gfx::QuadF(clipped_rect), &clipped);
ASSERT_TRUE(clipped);
// Only the corner of the layer is not visible on the surface because of being
// clipped. But, the net result of rounding visible region to an axis-aligned
// rect is that the entire layer should still be considered visible.
gfx::Rect expected = gfx::Rect(-10, -10, 20, 20);
gfx::Rect actual = LayerTreeHostCommon::CalculateVisibleRect(
target_surface_rect, layer_content_rect, layer_to_surface_transform);
EXPECT_RECT_EQ(expected, actual);
}
TEST_F(LayerTreeHostCommonTest, DrawableAndVisibleContentRectsForSimpleLayers) {
scoped_refptr<Layer> root = Layer::Create();
scoped_refptr<LayerWithForcedDrawsContent> child1 =
make_scoped_refptr(new LayerWithForcedDrawsContent());
scoped_refptr<LayerWithForcedDrawsContent> child2 =
make_scoped_refptr(new LayerWithForcedDrawsContent());
scoped_refptr<LayerWithForcedDrawsContent> child3 =
make_scoped_refptr(new LayerWithForcedDrawsContent());
root->AddChild(child1);
root->AddChild(child2);
root->AddChild(child3);
scoped_ptr<FakeLayerTreeHost> host = FakeLayerTreeHost::Create();
host->SetRootLayer(root);
gfx::Transform identity_matrix;
SetLayerPropertiesForTesting(root.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(100, 100),
false);
SetLayerPropertiesForTesting(child1.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(50, 50),
false);
SetLayerPropertiesForTesting(child2.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(75.f, 75.f),
gfx::Size(50, 50),
false);
SetLayerPropertiesForTesting(child3.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(125.f, 125.f),
gfx::Size(50, 50),
false);
ExecuteCalculateDrawProperties(root.get());
EXPECT_RECT_EQ(gfx::Rect(0, 0, 100, 100),
root->render_surface()->DrawableContentRect());
EXPECT_RECT_EQ(gfx::Rect(0, 0, 100, 100), root->drawable_content_rect());
// Layers that do not draw content should have empty visible_content_rects.
EXPECT_RECT_EQ(gfx::Rect(0, 0, 0, 0), root->visible_content_rect());
// layer visible_content_rects are clipped by their target surface.
EXPECT_RECT_EQ(gfx::Rect(0, 0, 50, 50), child1->visible_content_rect());
EXPECT_RECT_EQ(gfx::Rect(0, 0, 25, 25), child2->visible_content_rect());
EXPECT_TRUE(child3->visible_content_rect().IsEmpty());
// layer drawable_content_rects are not clipped.
EXPECT_RECT_EQ(gfx::Rect(0, 0, 50, 50), child1->drawable_content_rect());
EXPECT_RECT_EQ(gfx::Rect(75, 75, 50, 50), child2->drawable_content_rect());
EXPECT_RECT_EQ(gfx::Rect(125, 125, 50, 50), child3->drawable_content_rect());
}
TEST_F(LayerTreeHostCommonTest,
DrawableAndVisibleContentRectsForLayersClippedByLayer) {
scoped_refptr<Layer> root = Layer::Create();
scoped_refptr<Layer> child = Layer::Create();
scoped_refptr<LayerWithForcedDrawsContent> grand_child1 =
make_scoped_refptr(new LayerWithForcedDrawsContent());
scoped_refptr<LayerWithForcedDrawsContent> grand_child2 =
make_scoped_refptr(new LayerWithForcedDrawsContent());
scoped_refptr<LayerWithForcedDrawsContent> grand_child3 =
make_scoped_refptr(new LayerWithForcedDrawsContent());
root->AddChild(child);
child->AddChild(grand_child1);
child->AddChild(grand_child2);
child->AddChild(grand_child3);
scoped_ptr<FakeLayerTreeHost> host = FakeLayerTreeHost::Create();
host->SetRootLayer(root);
gfx::Transform identity_matrix;
SetLayerPropertiesForTesting(root.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(100, 100),
false);
SetLayerPropertiesForTesting(child.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(100, 100),
false);
SetLayerPropertiesForTesting(grand_child1.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(5.f, 5.f),
gfx::Size(50, 50),
false);
SetLayerPropertiesForTesting(grand_child2.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(75.f, 75.f),
gfx::Size(50, 50),
false);
SetLayerPropertiesForTesting(grand_child3.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(125.f, 125.f),
gfx::Size(50, 50),
false);
child->SetMasksToBounds(true);
ExecuteCalculateDrawProperties(root.get());
ASSERT_FALSE(child->render_surface());
EXPECT_RECT_EQ(gfx::Rect(0, 0, 100, 100),
root->render_surface()->DrawableContentRect());
EXPECT_RECT_EQ(gfx::Rect(0, 0, 100, 100), root->drawable_content_rect());
// Layers that do not draw content should have empty visible content rects.
EXPECT_RECT_EQ(gfx::Rect(0, 0, 0, 0), root->visible_content_rect());
EXPECT_RECT_EQ(gfx::Rect(0, 0, 0, 0), child->visible_content_rect());
// All grandchild visible content rects should be clipped by child.
EXPECT_RECT_EQ(gfx::Rect(0, 0, 50, 50), grand_child1->visible_content_rect());
EXPECT_RECT_EQ(gfx::Rect(0, 0, 25, 25), grand_child2->visible_content_rect());
EXPECT_TRUE(grand_child3->visible_content_rect().IsEmpty());
// All grandchild DrawableContentRects should also be clipped by child.
EXPECT_RECT_EQ(gfx::Rect(5, 5, 50, 50),
grand_child1->drawable_content_rect());
EXPECT_RECT_EQ(gfx::Rect(75, 75, 25, 25),
grand_child2->drawable_content_rect());
EXPECT_TRUE(grand_child3->drawable_content_rect().IsEmpty());
}
TEST_F(LayerTreeHostCommonTest,
DrawableAndVisibleContentRectsForLayersInUnclippedRenderSurface) {
scoped_refptr<Layer> root = Layer::Create();
scoped_refptr<Layer> render_surface1 = Layer::Create();
scoped_refptr<LayerWithForcedDrawsContent> child1 =
make_scoped_refptr(new LayerWithForcedDrawsContent());
scoped_refptr<LayerWithForcedDrawsContent> child2 =
make_scoped_refptr(new LayerWithForcedDrawsContent());
scoped_refptr<LayerWithForcedDrawsContent> child3 =
make_scoped_refptr(new LayerWithForcedDrawsContent());
root->AddChild(render_surface1);
render_surface1->AddChild(child1);
render_surface1->AddChild(child2);
render_surface1->AddChild(child3);
scoped_ptr<FakeLayerTreeHost> host = FakeLayerTreeHost::Create();
host->SetRootLayer(root);
gfx::Transform identity_matrix;
SetLayerPropertiesForTesting(root.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(100, 100),
false);
SetLayerPropertiesForTesting(render_surface1.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(3, 4),
false);
SetLayerPropertiesForTesting(child1.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(5.f, 5.f),
gfx::Size(50, 50),
false);
SetLayerPropertiesForTesting(child2.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(75.f, 75.f),
gfx::Size(50, 50),
false);
SetLayerPropertiesForTesting(child3.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(125.f, 125.f),
gfx::Size(50, 50),
false);
render_surface1->SetForceRenderSurface(true);
ExecuteCalculateDrawProperties(root.get());
ASSERT_TRUE(render_surface1->render_surface());
EXPECT_RECT_EQ(gfx::Rect(0, 0, 100, 100),
root->render_surface()->DrawableContentRect());
EXPECT_RECT_EQ(gfx::Rect(0, 0, 100, 100), root->drawable_content_rect());
// Layers that do not draw content should have empty visible content rects.
EXPECT_RECT_EQ(gfx::Rect(0, 0, 0, 0), root->visible_content_rect());
EXPECT_RECT_EQ(gfx::Rect(0, 0, 0, 0),
render_surface1->visible_content_rect());
// An unclipped surface grows its DrawableContentRect to include all drawable
// regions of the subtree.
EXPECT_RECT_EQ(gfx::Rect(5, 5, 170, 170),
render_surface1->render_surface()->DrawableContentRect());
// All layers that draw content into the unclipped surface are also unclipped.
EXPECT_RECT_EQ(gfx::Rect(0, 0, 50, 50), child1->visible_content_rect());
EXPECT_RECT_EQ(gfx::Rect(0, 0, 50, 50), child2->visible_content_rect());
EXPECT_RECT_EQ(gfx::Rect(0, 0, 50, 50), child3->visible_content_rect());
EXPECT_RECT_EQ(gfx::Rect(5, 5, 50, 50), child1->drawable_content_rect());
EXPECT_RECT_EQ(gfx::Rect(75, 75, 50, 50), child2->drawable_content_rect());
EXPECT_RECT_EQ(gfx::Rect(125, 125, 50, 50), child3->drawable_content_rect());
}
TEST_F(LayerTreeHostCommonTest,
DrawableAndVisibleContentRectsForLayersWithUninvertibleTransform) {
scoped_refptr<Layer> root = Layer::Create();
scoped_refptr<LayerWithForcedDrawsContent> child =
make_scoped_refptr(new LayerWithForcedDrawsContent());
root->AddChild(child);
scoped_ptr<FakeLayerTreeHost> host = FakeLayerTreeHost::Create();
host->SetRootLayer(root);
// Case 1: a truly degenerate matrix
gfx::Transform identity_matrix;
gfx::Transform uninvertible_matrix(0.0, 0.0, 0.0, 0.0, 0.0, 0.0);
ASSERT_FALSE(uninvertible_matrix.IsInvertible());
SetLayerPropertiesForTesting(root.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(100, 100),
false);
SetLayerPropertiesForTesting(child.get(),
uninvertible_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(5.f, 5.f),
gfx::Size(50, 50),
false);
ExecuteCalculateDrawProperties(root.get());
EXPECT_TRUE(child->visible_content_rect().IsEmpty());
EXPECT_TRUE(child->drawable_content_rect().IsEmpty());
// Case 2: a matrix with flattened z, technically uninvertible but still
// drawable and visible. In this case, we must assume that the entire layer
// bounds are visible since there is no way to inverse-project the surface
// bounds to intersect.
uninvertible_matrix.MakeIdentity();
uninvertible_matrix.matrix().setDouble(2, 2, 0.0);
ASSERT_FALSE(uninvertible_matrix.IsInvertible());
SetLayerPropertiesForTesting(child.get(),
uninvertible_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(5.f, 5.f),
gfx::Size(50, 50),
false);
ExecuteCalculateDrawProperties(root.get());
EXPECT_RECT_EQ(gfx::Rect(0, 0, 50, 50), child->visible_content_rect());
EXPECT_RECT_EQ(gfx::Rect(5, 5, 50, 50), child->drawable_content_rect());
// Case 3: a matrix with flattened z, technically uninvertible but still
// drawable, but not visible. In this case, we don't need to conservatively
// assume that the whole layer is visible.
uninvertible_matrix.MakeIdentity();
uninvertible_matrix.Translate(500.0, 0.0);
uninvertible_matrix.matrix().setDouble(2, 2, 0.0);
ASSERT_FALSE(uninvertible_matrix.IsInvertible());
SetLayerPropertiesForTesting(child.get(),
uninvertible_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(5.f, 5.f),
gfx::Size(50, 50),
false);
ExecuteCalculateDrawProperties(root.get());
EXPECT_TRUE(child->visible_content_rect().IsEmpty());
EXPECT_RECT_EQ(gfx::Rect(505, 5, 50, 50), child->drawable_content_rect());
}
TEST_F(LayerTreeHostCommonTest,
DrawableAndVisibleContentRectsForLayersInClippedRenderSurface) {
scoped_refptr<Layer> root = Layer::Create();
scoped_refptr<Layer> render_surface1 = Layer::Create();
scoped_refptr<LayerWithForcedDrawsContent> child1 =
make_scoped_refptr(new LayerWithForcedDrawsContent());
scoped_refptr<LayerWithForcedDrawsContent> child2 =
make_scoped_refptr(new LayerWithForcedDrawsContent());
scoped_refptr<LayerWithForcedDrawsContent> child3 =
make_scoped_refptr(new LayerWithForcedDrawsContent());
root->AddChild(render_surface1);
render_surface1->AddChild(child1);
render_surface1->AddChild(child2);
render_surface1->AddChild(child3);
scoped_ptr<FakeLayerTreeHost> host = FakeLayerTreeHost::Create();
host->SetRootLayer(root);
gfx::Transform identity_matrix;
SetLayerPropertiesForTesting(root.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(100, 100),
false);
SetLayerPropertiesForTesting(render_surface1.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(3, 4),
false);
SetLayerPropertiesForTesting(child1.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(5.f, 5.f),
gfx::Size(50, 50),
false);
SetLayerPropertiesForTesting(child2.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(75.f, 75.f),
gfx::Size(50, 50),
false);
SetLayerPropertiesForTesting(child3.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(125.f, 125.f),
gfx::Size(50, 50),
false);
root->SetMasksToBounds(true);
render_surface1->SetForceRenderSurface(true);
ExecuteCalculateDrawProperties(root.get());
ASSERT_TRUE(render_surface1->render_surface());
EXPECT_RECT_EQ(gfx::Rect(0, 0, 100, 100),
root->render_surface()->DrawableContentRect());
EXPECT_RECT_EQ(gfx::Rect(0, 0, 100, 100), root->drawable_content_rect());
// Layers that do not draw content should have empty visible content rects.
EXPECT_RECT_EQ(gfx::Rect(0, 0, 0, 0), root->visible_content_rect());
EXPECT_RECT_EQ(gfx::Rect(0, 0, 0, 0),
render_surface1->visible_content_rect());
// A clipped surface grows its DrawableContentRect to include all drawable
// regions of the subtree, but also gets clamped by the ancestor's clip.
EXPECT_RECT_EQ(gfx::Rect(5, 5, 95, 95),
render_surface1->render_surface()->DrawableContentRect());
// All layers that draw content into the surface have their visible content
// rect clipped by the surface clip rect.
EXPECT_RECT_EQ(gfx::Rect(0, 0, 50, 50), child1->visible_content_rect());
EXPECT_RECT_EQ(gfx::Rect(0, 0, 25, 25), child2->visible_content_rect());
EXPECT_TRUE(child3->visible_content_rect().IsEmpty());
// But the DrawableContentRects are unclipped.
EXPECT_RECT_EQ(gfx::Rect(5, 5, 50, 50), child1->drawable_content_rect());
EXPECT_RECT_EQ(gfx::Rect(75, 75, 50, 50), child2->drawable_content_rect());
EXPECT_RECT_EQ(gfx::Rect(125, 125, 50, 50), child3->drawable_content_rect());
}
TEST_F(LayerTreeHostCommonTest,
DrawableAndVisibleContentRectsForSurfaceHierarchy) {
// Check that clipping does not propagate down surfaces.
scoped_refptr<Layer> root = Layer::Create();
scoped_refptr<Layer> render_surface1 = Layer::Create();
scoped_refptr<Layer> render_surface2 = Layer::Create();
scoped_refptr<LayerWithForcedDrawsContent> child1 =
make_scoped_refptr(new LayerWithForcedDrawsContent());
scoped_refptr<LayerWithForcedDrawsContent> child2 =
make_scoped_refptr(new LayerWithForcedDrawsContent());
scoped_refptr<LayerWithForcedDrawsContent> child3 =
make_scoped_refptr(new LayerWithForcedDrawsContent());
root->AddChild(render_surface1);
render_surface1->AddChild(render_surface2);
render_surface2->AddChild(child1);
render_surface2->AddChild(child2);
render_surface2->AddChild(child3);
scoped_ptr<FakeLayerTreeHost> host = FakeLayerTreeHost::Create();
host->SetRootLayer(root);
gfx::Transform identity_matrix;
SetLayerPropertiesForTesting(root.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(100, 100),
false);
SetLayerPropertiesForTesting(render_surface1.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(3, 4),
false);
SetLayerPropertiesForTesting(render_surface2.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(7, 13),
false);
SetLayerPropertiesForTesting(child1.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(5.f, 5.f),
gfx::Size(50, 50),
false);
SetLayerPropertiesForTesting(child2.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(75.f, 75.f),
gfx::Size(50, 50),
false);
SetLayerPropertiesForTesting(child3.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(125.f, 125.f),
gfx::Size(50, 50),
false);
root->SetMasksToBounds(true);
render_surface1->SetForceRenderSurface(true);
render_surface2->SetForceRenderSurface(true);
ExecuteCalculateDrawProperties(root.get());
ASSERT_TRUE(render_surface1->render_surface());
ASSERT_TRUE(render_surface2->render_surface());
EXPECT_RECT_EQ(gfx::Rect(0, 0, 100, 100),
root->render_surface()->DrawableContentRect());
EXPECT_RECT_EQ(gfx::Rect(0, 0, 100, 100), root->drawable_content_rect());
// Layers that do not draw content should have empty visible content rects.
EXPECT_RECT_EQ(gfx::Rect(0, 0, 0, 0), root->visible_content_rect());
EXPECT_RECT_EQ(gfx::Rect(0, 0, 0, 0),
render_surface1->visible_content_rect());
EXPECT_RECT_EQ(gfx::Rect(0, 0, 0, 0),
render_surface2->visible_content_rect());
// A clipped surface grows its DrawableContentRect to include all drawable
// regions of the subtree, but also gets clamped by the ancestor's clip.
EXPECT_RECT_EQ(gfx::Rect(5, 5, 95, 95),
render_surface1->render_surface()->DrawableContentRect());
// render_surface1 lives in the "unclipped universe" of render_surface1, and
// is only implicitly clipped by render_surface1's content rect. So,
// render_surface2 grows to enclose all drawable content of its subtree.
EXPECT_RECT_EQ(gfx::Rect(5, 5, 170, 170),
render_surface2->render_surface()->DrawableContentRect());
// All layers that draw content into render_surface2 think they are unclipped.
EXPECT_RECT_EQ(gfx::Rect(0, 0, 50, 50), child1->visible_content_rect());
EXPECT_RECT_EQ(gfx::Rect(0, 0, 50, 50), child2->visible_content_rect());
EXPECT_RECT_EQ(gfx::Rect(0, 0, 50, 50), child3->visible_content_rect());
// DrawableContentRects are also unclipped.
EXPECT_RECT_EQ(gfx::Rect(5, 5, 50, 50), child1->drawable_content_rect());
EXPECT_RECT_EQ(gfx::Rect(75, 75, 50, 50), child2->drawable_content_rect());
EXPECT_RECT_EQ(gfx::Rect(125, 125, 50, 50), child3->drawable_content_rect());
}
TEST_F(LayerTreeHostCommonTest,
DrawableAndVisibleContentRectsWithTransformOnUnclippedSurface) {
// Layers that have non-axis aligned bounds (due to transforms) have an
// expanded, axis-aligned DrawableContentRect and visible content rect.
scoped_refptr<Layer> root = Layer::Create();
scoped_refptr<Layer> render_surface1 = Layer::Create();
scoped_refptr<LayerWithForcedDrawsContent> child1 =
make_scoped_refptr(new LayerWithForcedDrawsContent());
root->AddChild(render_surface1);
render_surface1->AddChild(child1);
scoped_ptr<FakeLayerTreeHost> host = FakeLayerTreeHost::Create();
host->SetRootLayer(root);
gfx::Transform identity_matrix;
gfx::Transform child_rotation;
child_rotation.Rotate(45.0);
SetLayerPropertiesForTesting(root.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(100, 100),
false);
SetLayerPropertiesForTesting(render_surface1.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(3, 4),
false);
SetLayerPropertiesForTesting(child1.get(),
child_rotation,
identity_matrix,
gfx::PointF(0.5f, 0.5f),
gfx::PointF(25.f, 25.f),
gfx::Size(50, 50),
false);
render_surface1->SetForceRenderSurface(true);
ExecuteCalculateDrawProperties(root.get());
ASSERT_TRUE(render_surface1->render_surface());
EXPECT_RECT_EQ(gfx::Rect(0, 0, 100, 100),
root->render_surface()->DrawableContentRect());
EXPECT_RECT_EQ(gfx::Rect(0, 0, 100, 100), root->drawable_content_rect());
// Layers that do not draw content should have empty visible content rects.
EXPECT_RECT_EQ(gfx::Rect(0, 0, 0, 0), root->visible_content_rect());
EXPECT_RECT_EQ(gfx::Rect(0, 0, 0, 0),
render_surface1->visible_content_rect());
// The unclipped surface grows its DrawableContentRect to include all drawable
// regions of the subtree.
int diagonal_radius = ceil(sqrt(2.0) * 25.0);
gfx::Rect expected_surface_drawable_content =
gfx::Rect(50.0 - diagonal_radius,
50.0 - diagonal_radius,
diagonal_radius * 2.0,
diagonal_radius * 2.0);
EXPECT_RECT_EQ(expected_surface_drawable_content,
render_surface1->render_surface()->DrawableContentRect());
// All layers that draw content into the unclipped surface are also unclipped.
EXPECT_RECT_EQ(gfx::Rect(0, 0, 50, 50), child1->visible_content_rect());
EXPECT_RECT_EQ(expected_surface_drawable_content,
child1->drawable_content_rect());
}
TEST_F(LayerTreeHostCommonTest,
DrawableAndVisibleContentRectsWithTransformOnClippedSurface) {
// Layers that have non-axis aligned bounds (due to transforms) have an
// expanded, axis-aligned DrawableContentRect and visible content rect.
scoped_refptr<Layer> root = Layer::Create();
scoped_refptr<Layer> render_surface1 = Layer::Create();
scoped_refptr<LayerWithForcedDrawsContent> child1 =
make_scoped_refptr(new LayerWithForcedDrawsContent());
root->AddChild(render_surface1);
render_surface1->AddChild(child1);
scoped_ptr<FakeLayerTreeHost> host = FakeLayerTreeHost::Create();
host->SetRootLayer(root);
gfx::Transform identity_matrix;
gfx::Transform child_rotation;
child_rotation.Rotate(45.0);
SetLayerPropertiesForTesting(root.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(50, 50),
false);
SetLayerPropertiesForTesting(render_surface1.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(3, 4),
false);
SetLayerPropertiesForTesting(child1.get(),
child_rotation,
identity_matrix,
gfx::PointF(0.5f, 0.5f),
gfx::PointF(25.f, 25.f),
gfx::Size(50, 50),
false);
root->SetMasksToBounds(true);
render_surface1->SetForceRenderSurface(true);
ExecuteCalculateDrawProperties(root.get());
ASSERT_TRUE(render_surface1->render_surface());
// The clipped surface clamps the DrawableContentRect that encloses the
// rotated layer.
int diagonal_radius = ceil(sqrt(2.0) * 25.0);
gfx::Rect unclipped_surface_content = gfx::Rect(50.0 - diagonal_radius,
50.0 - diagonal_radius,
diagonal_radius * 2.0,
diagonal_radius * 2.0);
gfx::Rect expected_surface_drawable_content =
gfx::IntersectRects(unclipped_surface_content, gfx::Rect(0, 0, 50, 50));
EXPECT_RECT_EQ(expected_surface_drawable_content,
render_surface1->render_surface()->DrawableContentRect());
// On the clipped surface, only a quarter of the child1 is visible, but when
// rotating it back to child1's content space, the actual enclosing rect ends
// up covering the full left half of child1.
EXPECT_RECT_EQ(gfx::Rect(0, 0, 26, 50), child1->visible_content_rect());
// The child's DrawableContentRect is unclipped.
EXPECT_RECT_EQ(unclipped_surface_content, child1->drawable_content_rect());
}
TEST_F(LayerTreeHostCommonTest, DrawableAndVisibleContentRectsInHighDPI) {
MockContentLayerClient client;
scoped_refptr<Layer> root = Layer::Create();
scoped_refptr<ContentLayer> render_surface1 =
CreateDrawableContentLayer(&client);
scoped_refptr<ContentLayer> render_surface2 =
CreateDrawableContentLayer(&client);
scoped_refptr<ContentLayer> child1 = CreateDrawableContentLayer(&client);
scoped_refptr<ContentLayer> child2 = CreateDrawableContentLayer(&client);
scoped_refptr<ContentLayer> child3 = CreateDrawableContentLayer(&client);
root->AddChild(render_surface1);
render_surface1->AddChild(render_surface2);
render_surface2->AddChild(child1);
render_surface2->AddChild(child2);
render_surface2->AddChild(child3);
scoped_ptr<FakeLayerTreeHost> host = FakeLayerTreeHost::Create();
host->SetRootLayer(root);
gfx::Transform identity_matrix;
SetLayerPropertiesForTesting(root.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(100, 100),
false);
SetLayerPropertiesForTesting(render_surface1.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(5.f, 5.f),
gfx::Size(3, 4),
false);
SetLayerPropertiesForTesting(render_surface2.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(5.f, 5.f),
gfx::Size(7, 13),
false);
SetLayerPropertiesForTesting(child1.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(5.f, 5.f),
gfx::Size(50, 50),
false);
SetLayerPropertiesForTesting(child2.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(75.f, 75.f),
gfx::Size(50, 50),
false);
SetLayerPropertiesForTesting(child3.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(125.f, 125.f),
gfx::Size(50, 50),
false);
float device_scale_factor = 2.f;
root->SetMasksToBounds(true);
render_surface1->SetForceRenderSurface(true);
render_surface2->SetForceRenderSurface(true);
ExecuteCalculateDrawProperties(root.get(), device_scale_factor);
ASSERT_TRUE(render_surface1->render_surface());
ASSERT_TRUE(render_surface2->render_surface());
// drawable_content_rects for all layers and surfaces are scaled by
// device_scale_factor.
EXPECT_RECT_EQ(gfx::Rect(0, 0, 200, 200),
root->render_surface()->DrawableContentRect());
EXPECT_RECT_EQ(gfx::Rect(0, 0, 200, 200), root->drawable_content_rect());
EXPECT_RECT_EQ(gfx::Rect(10, 10, 190, 190),
render_surface1->render_surface()->DrawableContentRect());
// render_surface2 lives in the "unclipped universe" of render_surface1, and
// is only implicitly clipped by render_surface1.
EXPECT_RECT_EQ(gfx::Rect(10, 10, 350, 350),
render_surface2->render_surface()->DrawableContentRect());
EXPECT_RECT_EQ(gfx::Rect(10, 10, 100, 100), child1->drawable_content_rect());
EXPECT_RECT_EQ(gfx::Rect(150, 150, 100, 100),
child2->drawable_content_rect());
EXPECT_RECT_EQ(gfx::Rect(250, 250, 100, 100),
child3->drawable_content_rect());
// The root layer does not actually draw content of its own.
EXPECT_RECT_EQ(gfx::Rect(0, 0, 0, 0), root->visible_content_rect());
// All layer visible content rects are expressed in content space of each
// layer, so they are also scaled by the device_scale_factor.
EXPECT_RECT_EQ(gfx::Rect(0, 0, 6, 8),
render_surface1->visible_content_rect());
EXPECT_RECT_EQ(gfx::Rect(0, 0, 14, 26),
render_surface2->visible_content_rect());
EXPECT_RECT_EQ(gfx::Rect(0, 0, 100, 100), child1->visible_content_rect());
EXPECT_RECT_EQ(gfx::Rect(0, 0, 100, 100), child2->visible_content_rect());
EXPECT_RECT_EQ(gfx::Rect(0, 0, 100, 100), child3->visible_content_rect());
}
TEST_F(LayerTreeHostCommonTest, BackFaceCullingWithoutPreserves3d) {
// Verify the behavior of back-face culling when there are no preserve-3d
// layers. Note that 3d transforms still apply in this case, but they are
// "flattened" to each parent layer according to current W3C spec.
const gfx::Transform identity_matrix;
scoped_refptr<Layer> parent = Layer::Create();
scoped_refptr<LayerWithForcedDrawsContent> front_facing_child =
make_scoped_refptr(new LayerWithForcedDrawsContent());
scoped_refptr<LayerWithForcedDrawsContent> back_facing_child =
make_scoped_refptr(new LayerWithForcedDrawsContent());
scoped_refptr<LayerWithForcedDrawsContent> front_facing_surface =
make_scoped_refptr(new LayerWithForcedDrawsContent());
scoped_refptr<LayerWithForcedDrawsContent> back_facing_surface =
make_scoped_refptr(new LayerWithForcedDrawsContent());
scoped_refptr<LayerWithForcedDrawsContent>
front_facing_child_of_front_facing_surface =
make_scoped_refptr(new LayerWithForcedDrawsContent());
scoped_refptr<LayerWithForcedDrawsContent>
back_facing_child_of_front_facing_surface =
make_scoped_refptr(new LayerWithForcedDrawsContent());
scoped_refptr<LayerWithForcedDrawsContent>
front_facing_child_of_back_facing_surface =
make_scoped_refptr(new LayerWithForcedDrawsContent());
scoped_refptr<LayerWithForcedDrawsContent>
back_facing_child_of_back_facing_surface =
make_scoped_refptr(new LayerWithForcedDrawsContent());
parent->AddChild(front_facing_child);
parent->AddChild(back_facing_child);
parent->AddChild(front_facing_surface);
parent->AddChild(back_facing_surface);
front_facing_surface->AddChild(front_facing_child_of_front_facing_surface);
front_facing_surface->AddChild(back_facing_child_of_front_facing_surface);
back_facing_surface->AddChild(front_facing_child_of_back_facing_surface);
back_facing_surface->AddChild(back_facing_child_of_back_facing_surface);
scoped_ptr<FakeLayerTreeHost> host = FakeLayerTreeHost::Create();
host->SetRootLayer(parent);
// Nothing is double-sided
front_facing_child->SetDoubleSided(false);
back_facing_child->SetDoubleSided(false);
front_facing_surface->SetDoubleSided(false);
back_facing_surface->SetDoubleSided(false);
front_facing_child_of_front_facing_surface->SetDoubleSided(false);
back_facing_child_of_front_facing_surface->SetDoubleSided(false);
front_facing_child_of_back_facing_surface->SetDoubleSided(false);
back_facing_child_of_back_facing_surface->SetDoubleSided(false);
gfx::Transform backface_matrix;
backface_matrix.Translate(50.0, 50.0);
backface_matrix.RotateAboutYAxis(180.0);
backface_matrix.Translate(-50.0, -50.0);
// Having a descendant and opacity will force these to have render surfaces.
front_facing_surface->SetOpacity(0.5f);
back_facing_surface->SetOpacity(0.5f);
// Nothing preserves 3d. According to current W3C CSS gfx::Transforms spec,
// these layers should blindly use their own local transforms to determine
// back-face culling.
SetLayerPropertiesForTesting(parent.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(100, 100),
false);
SetLayerPropertiesForTesting(front_facing_child.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(100, 100),
false);
SetLayerPropertiesForTesting(back_facing_child.get(),
backface_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(100, 100),
false);
SetLayerPropertiesForTesting(front_facing_surface.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(100, 100),
false);
SetLayerPropertiesForTesting(back_facing_surface.get(),
backface_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(100, 100),
false);
SetLayerPropertiesForTesting(front_facing_child_of_front_facing_surface.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(100, 100),
false);
SetLayerPropertiesForTesting(back_facing_child_of_front_facing_surface.get(),
backface_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(100, 100),
false);
SetLayerPropertiesForTesting(front_facing_child_of_back_facing_surface.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(100, 100),
false);
SetLayerPropertiesForTesting(back_facing_child_of_back_facing_surface.get(),
backface_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(100, 100),
false);
RenderSurfaceLayerList render_surface_layer_list;
LayerTreeHostCommon::CalcDrawPropsMainInputsForTesting inputs(
parent.get(), parent->bounds(), &render_surface_layer_list);
inputs.can_adjust_raster_scales = true;
LayerTreeHostCommon::CalculateDrawProperties(&inputs);
// Verify which render surfaces were created.
EXPECT_FALSE(front_facing_child->render_surface());
EXPECT_FALSE(back_facing_child->render_surface());
EXPECT_TRUE(front_facing_surface->render_surface());
EXPECT_TRUE(back_facing_surface->render_surface());
EXPECT_FALSE(front_facing_child_of_front_facing_surface->render_surface());
EXPECT_FALSE(back_facing_child_of_front_facing_surface->render_surface());
EXPECT_FALSE(front_facing_child_of_back_facing_surface->render_surface());
EXPECT_FALSE(back_facing_child_of_back_facing_surface->render_surface());
// Verify the render_surface_layer_list.
ASSERT_EQ(3u, render_surface_layer_list.size());
EXPECT_EQ(parent->id(), render_surface_layer_list.at(0)->id());
EXPECT_EQ(front_facing_surface->id(), render_surface_layer_list.at(1)->id());
// Even though the back facing surface LAYER gets culled, the other
// descendants should still be added, so the SURFACE should not be culled.
EXPECT_EQ(back_facing_surface->id(), render_surface_layer_list.at(2)->id());
// Verify root surface's layer list.
ASSERT_EQ(
3u,
render_surface_layer_list.at(0)->render_surface()->layer_list().size());
EXPECT_EQ(front_facing_child->id(),
render_surface_layer_list.at(0)
->render_surface()->layer_list().at(0)->id());
EXPECT_EQ(front_facing_surface->id(),
render_surface_layer_list.at(0)
->render_surface()->layer_list().at(1)->id());
EXPECT_EQ(back_facing_surface->id(),
render_surface_layer_list.at(0)
->render_surface()->layer_list().at(2)->id());
// Verify front_facing_surface's layer list.
ASSERT_EQ(
2u,
render_surface_layer_list.at(1)->render_surface()->layer_list().size());
EXPECT_EQ(front_facing_surface->id(),
render_surface_layer_list.at(1)
->render_surface()->layer_list().at(0)->id());
EXPECT_EQ(front_facing_child_of_front_facing_surface->id(),
render_surface_layer_list.at(1)
->render_surface()->layer_list().at(1)->id());
// Verify back_facing_surface's layer list; its own layer should be culled
// from the surface list.
ASSERT_EQ(
1u,
render_surface_layer_list.at(2)->render_surface()->layer_list().size());
EXPECT_EQ(front_facing_child_of_back_facing_surface->id(),
render_surface_layer_list.at(2)
->render_surface()->layer_list().at(0)->id());
}
TEST_F(LayerTreeHostCommonTest, BackFaceCullingWithPreserves3d) {
// Verify the behavior of back-face culling when preserves-3d transform style
// is used.
const gfx::Transform identity_matrix;
scoped_refptr<Layer> parent = Layer::Create();
scoped_refptr<LayerWithForcedDrawsContent> front_facing_child =
make_scoped_refptr(new LayerWithForcedDrawsContent());
scoped_refptr<LayerWithForcedDrawsContent> back_facing_child =
make_scoped_refptr(new LayerWithForcedDrawsContent());
scoped_refptr<LayerWithForcedDrawsContent> front_facing_surface =
make_scoped_refptr(new LayerWithForcedDrawsContent());
scoped_refptr<LayerWithForcedDrawsContent> back_facing_surface =
make_scoped_refptr(new LayerWithForcedDrawsContent());
scoped_refptr<LayerWithForcedDrawsContent>
front_facing_child_of_front_facing_surface =
make_scoped_refptr(new LayerWithForcedDrawsContent());
scoped_refptr<LayerWithForcedDrawsContent>
back_facing_child_of_front_facing_surface =
make_scoped_refptr(new LayerWithForcedDrawsContent());
scoped_refptr<LayerWithForcedDrawsContent>
front_facing_child_of_back_facing_surface =
make_scoped_refptr(new LayerWithForcedDrawsContent());
scoped_refptr<LayerWithForcedDrawsContent>
back_facing_child_of_back_facing_surface =
make_scoped_refptr(new LayerWithForcedDrawsContent());
scoped_refptr<LayerWithForcedDrawsContent> dummy_replica_layer1 =
make_scoped_refptr(new LayerWithForcedDrawsContent());
scoped_refptr<LayerWithForcedDrawsContent> dummy_replica_layer2 =
make_scoped_refptr(new LayerWithForcedDrawsContent());
parent->AddChild(front_facing_child);
parent->AddChild(back_facing_child);
parent->AddChild(front_facing_surface);
parent->AddChild(back_facing_surface);
front_facing_surface->AddChild(front_facing_child_of_front_facing_surface);
front_facing_surface->AddChild(back_facing_child_of_front_facing_surface);
back_facing_surface->AddChild(front_facing_child_of_back_facing_surface);
back_facing_surface->AddChild(back_facing_child_of_back_facing_surface);
scoped_ptr<FakeLayerTreeHost> host = FakeLayerTreeHost::Create();
host->SetRootLayer(parent);
// Nothing is double-sided
front_facing_child->SetDoubleSided(false);
back_facing_child->SetDoubleSided(false);
front_facing_surface->SetDoubleSided(false);
back_facing_surface->SetDoubleSided(false);
front_facing_child_of_front_facing_surface->SetDoubleSided(false);
back_facing_child_of_front_facing_surface->SetDoubleSided(false);
front_facing_child_of_back_facing_surface->SetDoubleSided(false);
back_facing_child_of_back_facing_surface->SetDoubleSided(false);
gfx::Transform backface_matrix;
backface_matrix.Translate(50.0, 50.0);
backface_matrix.RotateAboutYAxis(180.0);
backface_matrix.Translate(-50.0, -50.0);
// Opacity will not force creation of render surfaces in this case because of
// the preserve-3d transform style. Instead, an example of when a surface
// would be created with preserve-3d is when there is a replica layer.
front_facing_surface->SetReplicaLayer(dummy_replica_layer1.get());
back_facing_surface->SetReplicaLayer(dummy_replica_layer2.get());
// Each surface creates its own new 3d rendering context (as defined by W3C
// spec). According to current W3C CSS gfx::Transforms spec, layers in a 3d
// rendering context should use the transform with respect to that context.
// This 3d rendering context occurs when (a) parent's transform style is flat
// and (b) the layer's transform style is preserve-3d.
SetLayerPropertiesForTesting(parent.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(100, 100),
false); // parent transform style is flat.
SetLayerPropertiesForTesting(front_facing_child.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(100, 100),
false);
SetLayerPropertiesForTesting(back_facing_child.get(),
backface_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(100, 100),
false);
SetLayerPropertiesForTesting(
front_facing_surface.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(100, 100),
true); // surface transform style is preserve-3d.
SetLayerPropertiesForTesting(
back_facing_surface.get(),
backface_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(100, 100),
true); // surface transform style is preserve-3d.
SetLayerPropertiesForTesting(front_facing_child_of_front_facing_surface.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(100, 100),
false);
SetLayerPropertiesForTesting(back_facing_child_of_front_facing_surface.get(),
backface_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(100, 100),
false);
SetLayerPropertiesForTesting(front_facing_child_of_back_facing_surface.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(100, 100),
false);
SetLayerPropertiesForTesting(back_facing_child_of_back_facing_surface.get(),
backface_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(100, 100),
false);
RenderSurfaceLayerList render_surface_layer_list;
LayerTreeHostCommon::CalcDrawPropsMainInputsForTesting inputs(
parent.get(), parent->bounds(), &render_surface_layer_list);
inputs.can_adjust_raster_scales = true;
LayerTreeHostCommon::CalculateDrawProperties(&inputs);
// Verify which render surfaces were created.
EXPECT_FALSE(front_facing_child->render_surface());
EXPECT_FALSE(back_facing_child->render_surface());
EXPECT_TRUE(front_facing_surface->render_surface());
EXPECT_FALSE(back_facing_surface->render_surface());
EXPECT_FALSE(front_facing_child_of_front_facing_surface->render_surface());
EXPECT_FALSE(back_facing_child_of_front_facing_surface->render_surface());
EXPECT_FALSE(front_facing_child_of_back_facing_surface->render_surface());
EXPECT_FALSE(back_facing_child_of_back_facing_surface->render_surface());
// Verify the render_surface_layer_list. The back-facing surface should be
// culled.
ASSERT_EQ(2u, render_surface_layer_list.size());
EXPECT_EQ(parent->id(), render_surface_layer_list.at(0)->id());
EXPECT_EQ(front_facing_surface->id(), render_surface_layer_list.at(1)->id());
// Verify root surface's layer list.
ASSERT_EQ(
2u,
render_surface_layer_list.at(0)->render_surface()->layer_list().size());
EXPECT_EQ(front_facing_child->id(),
render_surface_layer_list.at(0)
->render_surface()->layer_list().at(0)->id());
EXPECT_EQ(front_facing_surface->id(),
render_surface_layer_list.at(0)
->render_surface()->layer_list().at(1)->id());
// Verify front_facing_surface's layer list.
ASSERT_EQ(
2u,
render_surface_layer_list.at(1)->render_surface()->layer_list().size());
EXPECT_EQ(front_facing_surface->id(),
render_surface_layer_list.at(1)
->render_surface()->layer_list().at(0)->id());
EXPECT_EQ(front_facing_child_of_front_facing_surface->id(),
render_surface_layer_list.at(1)
->render_surface()->layer_list().at(1)->id());
}
TEST_F(LayerTreeHostCommonTest, BackFaceCullingWithAnimatingTransforms) {
// Verify that layers are appropriately culled when their back face is showing
// and they are not double sided, while animations are going on.
//
// Layers that are animating do not get culled on the main thread, as their
// transforms should be treated as "unknown" so we can not be sure that their
// back face is really showing.
const gfx::Transform identity_matrix;
scoped_refptr<Layer> parent = Layer::Create();
scoped_refptr<LayerWithForcedDrawsContent> child =
make_scoped_refptr(new LayerWithForcedDrawsContent());
scoped_refptr<LayerWithForcedDrawsContent> animating_surface =
make_scoped_refptr(new LayerWithForcedDrawsContent());
scoped_refptr<LayerWithForcedDrawsContent> child_of_animating_surface =
make_scoped_refptr(new LayerWithForcedDrawsContent());
scoped_refptr<LayerWithForcedDrawsContent> animating_child =
make_scoped_refptr(new LayerWithForcedDrawsContent());
scoped_refptr<LayerWithForcedDrawsContent> child2 =
make_scoped_refptr(new LayerWithForcedDrawsContent());
parent->AddChild(child);
parent->AddChild(animating_surface);
animating_surface->AddChild(child_of_animating_surface);
parent->AddChild(animating_child);
parent->AddChild(child2);
scoped_ptr<FakeLayerTreeHost> host = FakeLayerTreeHost::Create();
host->SetRootLayer(parent);
// Nothing is double-sided
child->SetDoubleSided(false);
child2->SetDoubleSided(false);
animating_surface->SetDoubleSided(false);
child_of_animating_surface->SetDoubleSided(false);
animating_child->SetDoubleSided(false);
gfx::Transform backface_matrix;
backface_matrix.Translate(50.0, 50.0);
backface_matrix.RotateAboutYAxis(180.0);
backface_matrix.Translate(-50.0, -50.0);
// Make our render surface.
animating_surface->SetForceRenderSurface(true);
// Animate the transform on the render surface.
AddAnimatedTransformToController(
animating_surface->layer_animation_controller(), 10.0, 30, 0);
// This is just an animating layer, not a surface.
AddAnimatedTransformToController(
animating_child->layer_animation_controller(), 10.0, 30, 0);
SetLayerPropertiesForTesting(parent.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(100, 100),
false);
SetLayerPropertiesForTesting(child.get(),
backface_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(100, 100),
false);
SetLayerPropertiesForTesting(animating_surface.get(),
backface_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(100, 100),
false);
SetLayerPropertiesForTesting(child_of_animating_surface.get(),
backface_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(100, 100),
false);
SetLayerPropertiesForTesting(animating_child.get(),
backface_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(100, 100),
false);
SetLayerPropertiesForTesting(child2.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(100, 100),
false);
RenderSurfaceLayerList render_surface_layer_list;
LayerTreeHostCommon::CalcDrawPropsMainInputsForTesting inputs(
parent.get(), parent->bounds(), &render_surface_layer_list);
inputs.can_adjust_raster_scales = true;
LayerTreeHostCommon::CalculateDrawProperties(&inputs);
EXPECT_FALSE(child->render_surface());
EXPECT_TRUE(animating_surface->render_surface());
EXPECT_FALSE(child_of_animating_surface->render_surface());
EXPECT_FALSE(animating_child->render_surface());
EXPECT_FALSE(child2->render_surface());
// Verify that the animating_child and child_of_animating_surface were not
// culled, but that child was.
ASSERT_EQ(2u, render_surface_layer_list.size());
EXPECT_EQ(parent->id(), render_surface_layer_list.at(0)->id());
EXPECT_EQ(animating_surface->id(), render_surface_layer_list.at(1)->id());
// The non-animating child be culled from the layer list for the parent render
// surface.
ASSERT_EQ(
3u,
render_surface_layer_list.at(0)->render_surface()->layer_list().size());
EXPECT_EQ(animating_surface->id(),
render_surface_layer_list.at(0)
->render_surface()->layer_list().at(0)->id());
EXPECT_EQ(animating_child->id(),
render_surface_layer_list.at(0)
->render_surface()->layer_list().at(1)->id());
EXPECT_EQ(child2->id(),
render_surface_layer_list.at(0)
->render_surface()->layer_list().at(2)->id());
ASSERT_EQ(
2u,
render_surface_layer_list.at(1)->render_surface()->layer_list().size());
EXPECT_EQ(animating_surface->id(),
render_surface_layer_list.at(1)
->render_surface()->layer_list().at(0)->id());
EXPECT_EQ(child_of_animating_surface->id(),
render_surface_layer_list.at(1)
->render_surface()->layer_list().at(1)->id());
EXPECT_FALSE(child2->visible_content_rect().IsEmpty());
// The animating layers should have a visible content rect that represents the
// area of the front face that is within the viewport.
EXPECT_EQ(animating_child->visible_content_rect(),
gfx::Rect(animating_child->content_bounds()));
EXPECT_EQ(animating_surface->visible_content_rect(),
gfx::Rect(animating_surface->content_bounds()));
// And layers in the subtree of the animating layer should have valid visible
// content rects also.
EXPECT_EQ(child_of_animating_surface->visible_content_rect(),
gfx::Rect(child_of_animating_surface->content_bounds()));
}
TEST_F(LayerTreeHostCommonTest,
BackFaceCullingWithPreserves3dForFlatteningSurface) {
// Verify the behavior of back-face culling for a render surface that is
// created when it flattens its subtree, and its parent has preserves-3d.
const gfx::Transform identity_matrix;
scoped_refptr<Layer> parent = Layer::Create();
scoped_refptr<LayerWithForcedDrawsContent> front_facing_surface =
make_scoped_refptr(new LayerWithForcedDrawsContent());
scoped_refptr<LayerWithForcedDrawsContent> back_facing_surface =
make_scoped_refptr(new LayerWithForcedDrawsContent());
scoped_refptr<LayerWithForcedDrawsContent> child1 =
make_scoped_refptr(new LayerWithForcedDrawsContent());
scoped_refptr<LayerWithForcedDrawsContent> child2 =
make_scoped_refptr(new LayerWithForcedDrawsContent());
parent->AddChild(front_facing_surface);
parent->AddChild(back_facing_surface);
front_facing_surface->AddChild(child1);
back_facing_surface->AddChild(child2);
scoped_ptr<FakeLayerTreeHost> host = FakeLayerTreeHost::Create();
host->SetRootLayer(parent);
// RenderSurfaces are not double-sided
front_facing_surface->SetDoubleSided(false);
back_facing_surface->SetDoubleSided(false);
gfx::Transform backface_matrix;
backface_matrix.Translate(50.0, 50.0);
backface_matrix.RotateAboutYAxis(180.0);
backface_matrix.Translate(-50.0, -50.0);
SetLayerPropertiesForTesting(parent.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(100, 100),
true); // parent transform style is preserve3d.
SetLayerPropertiesForTesting(front_facing_surface.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(100, 100),
false); // surface transform style is flat.
SetLayerPropertiesForTesting(back_facing_surface.get(),
backface_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(100, 100),
false); // surface transform style is flat.
SetLayerPropertiesForTesting(child1.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(100, 100),
false);
SetLayerPropertiesForTesting(child2.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(100, 100),
false);
RenderSurfaceLayerList render_surface_layer_list;
LayerTreeHostCommon::CalcDrawPropsMainInputsForTesting inputs(
parent.get(), parent->bounds(), &render_surface_layer_list);
inputs.can_adjust_raster_scales = true;
LayerTreeHostCommon::CalculateDrawProperties(&inputs);
// Verify which render surfaces were created.
EXPECT_TRUE(front_facing_surface->render_surface());
EXPECT_FALSE(
back_facing_surface->render_surface()); // because it should be culled
EXPECT_FALSE(child1->render_surface());
EXPECT_FALSE(child2->render_surface());
// Verify the render_surface_layer_list. The back-facing surface should be
// culled.
ASSERT_EQ(2u, render_surface_layer_list.size());
EXPECT_EQ(parent->id(), render_surface_layer_list.at(0)->id());
EXPECT_EQ(front_facing_surface->id(), render_surface_layer_list.at(1)->id());
// Verify root surface's layer list.
ASSERT_EQ(
1u,
render_surface_layer_list.at(0)->render_surface()->layer_list().size());
EXPECT_EQ(front_facing_surface->id(),
render_surface_layer_list.at(0)
->render_surface()->layer_list().at(0)->id());
// Verify front_facing_surface's layer list.
ASSERT_EQ(
2u,
render_surface_layer_list.at(1)->render_surface()->layer_list().size());
EXPECT_EQ(front_facing_surface->id(),
render_surface_layer_list.at(1)
->render_surface()->layer_list().at(0)->id());
EXPECT_EQ(child1->id(),
render_surface_layer_list.at(1)
->render_surface()->layer_list().at(1)->id());
}
TEST_F(LayerTreeHostCommonTest, HitTestingForEmptyLayerList) {
// Hit testing on an empty render_surface_layer_list should return a null
// pointer.
LayerImplList render_surface_layer_list;
gfx::Point test_point(0, 0);
LayerImpl* result_layer = LayerTreeHostCommon::FindLayerThatIsHitByPoint(
test_point, render_surface_layer_list);
EXPECT_FALSE(result_layer);
test_point = gfx::Point(10, 20);
result_layer = LayerTreeHostCommon::FindLayerThatIsHitByPoint(
test_point, render_surface_layer_list);
EXPECT_FALSE(result_layer);
}
TEST_F(LayerTreeHostCommonTest, HitTestingForSingleLayer) {
FakeImplProxy proxy;
FakeLayerTreeHostImpl host_impl(&proxy);
scoped_ptr<LayerImpl> root =
LayerImpl::Create(host_impl.active_tree(), 12345);
gfx::Transform identity_matrix;
gfx::PointF anchor;
gfx::PointF position;
gfx::Size bounds(100, 100);
SetLayerPropertiesForTesting(root.get(),
identity_matrix,
identity_matrix,
anchor,
position,
bounds,
false);
root->SetDrawsContent(true);
LayerImplList render_surface_layer_list;
LayerTreeHostCommon::CalcDrawPropsImplInputsForTesting inputs(
root.get(), root->bounds(), &render_surface_layer_list);
inputs.can_adjust_raster_scales = true;
LayerTreeHostCommon::CalculateDrawProperties(&inputs);
// Sanity check the scenario we just created.
ASSERT_EQ(1u, render_surface_layer_list.size());
ASSERT_EQ(1u, root->render_surface()->layer_list().size());
// Hit testing for a point outside the layer should return a null pointer.
gfx::Point test_point(101, 101);
LayerImpl* result_layer = LayerTreeHostCommon::FindLayerThatIsHitByPoint(
test_point, render_surface_layer_list);
EXPECT_FALSE(result_layer);
test_point = gfx::Point(-1, -1);
result_layer = LayerTreeHostCommon::FindLayerThatIsHitByPoint(
test_point, render_surface_layer_list);
EXPECT_FALSE(result_layer);
// Hit testing for a point inside should return the root layer.
test_point = gfx::Point(1, 1);
result_layer = LayerTreeHostCommon::FindLayerThatIsHitByPoint(
test_point, render_surface_layer_list);
ASSERT_TRUE(result_layer);
EXPECT_EQ(12345, result_layer->id());
test_point = gfx::Point(99, 99);
result_layer = LayerTreeHostCommon::FindLayerThatIsHitByPoint(
test_point, render_surface_layer_list);
ASSERT_TRUE(result_layer);
EXPECT_EQ(12345, result_layer->id());
}
TEST_F(LayerTreeHostCommonTest, HitTestingForSingleLayerAndHud) {
FakeImplProxy proxy;
FakeLayerTreeHostImpl host_impl(&proxy);
scoped_ptr<LayerImpl> root =
LayerImpl::Create(host_impl.active_tree(), 12345);
scoped_ptr<HeadsUpDisplayLayerImpl> hud =
HeadsUpDisplayLayerImpl::Create(host_impl.active_tree(), 11111);
gfx::Transform identity_matrix;
gfx::PointF anchor;
gfx::PointF position;
gfx::Size bounds(100, 100);
SetLayerPropertiesForTesting(root.get(),
identity_matrix,
identity_matrix,
anchor,
position,
bounds,
false);
root->SetDrawsContent(true);
// Create hud and add it as a child of root.
gfx::Size hud_bounds(200, 200);
SetLayerPropertiesForTesting(hud.get(),
identity_matrix,
identity_matrix,
anchor,
position,
hud_bounds,
false);
hud->SetDrawsContent(true);
host_impl.active_tree()->set_hud_layer(hud.get());
root->AddChild(hud.PassAs<LayerImpl>());
LayerImplList render_surface_layer_list;
LayerTreeHostCommon::CalcDrawPropsImplInputsForTesting inputs(
root.get(), hud_bounds, &render_surface_layer_list);
inputs.can_adjust_raster_scales = true;
LayerTreeHostCommon::CalculateDrawProperties(&inputs);
// Sanity check the scenario we just created.
ASSERT_EQ(1u, render_surface_layer_list.size());
ASSERT_EQ(2u, root->render_surface()->layer_list().size());
// Hit testing for a point inside HUD, but outside root should return null
gfx::Point test_point(101, 101);
LayerImpl* result_layer = LayerTreeHostCommon::FindLayerThatIsHitByPoint(
test_point, render_surface_layer_list);
EXPECT_FALSE(result_layer);
test_point = gfx::Point(-1, -1);
result_layer = LayerTreeHostCommon::FindLayerThatIsHitByPoint(
test_point, render_surface_layer_list);
EXPECT_FALSE(result_layer);
// Hit testing for a point inside should return the root layer, never the HUD
// layer.
test_point = gfx::Point(1, 1);
result_layer = LayerTreeHostCommon::FindLayerThatIsHitByPoint(
test_point, render_surface_layer_list);
ASSERT_TRUE(result_layer);
EXPECT_EQ(12345, result_layer->id());
test_point = gfx::Point(99, 99);
result_layer = LayerTreeHostCommon::FindLayerThatIsHitByPoint(
test_point, render_surface_layer_list);
ASSERT_TRUE(result_layer);
EXPECT_EQ(12345, result_layer->id());
}
TEST_F(LayerTreeHostCommonTest, HitTestingForUninvertibleTransform) {
FakeImplProxy proxy;
FakeLayerTreeHostImpl host_impl(&proxy);
scoped_ptr<LayerImpl> root =
LayerImpl::Create(host_impl.active_tree(), 12345);
gfx::Transform uninvertible_transform;
uninvertible_transform.matrix().setDouble(0, 0, 0.0);
uninvertible_transform.matrix().setDouble(1, 1, 0.0);
uninvertible_transform.matrix().setDouble(2, 2, 0.0);
uninvertible_transform.matrix().setDouble(3, 3, 0.0);
ASSERT_FALSE(uninvertible_transform.IsInvertible());
gfx::Transform identity_matrix;
gfx::PointF anchor;
gfx::PointF position;
gfx::Size bounds(100, 100);
SetLayerPropertiesForTesting(root.get(),
uninvertible_transform,
identity_matrix,
anchor,
position,
bounds,
false);
root->SetDrawsContent(true);
LayerImplList render_surface_layer_list;
LayerTreeHostCommon::CalcDrawPropsImplInputsForTesting inputs(
root.get(), root->bounds(), &render_surface_layer_list);
inputs.can_adjust_raster_scales = true;
LayerTreeHostCommon::CalculateDrawProperties(&inputs);
// Sanity check the scenario we just created.
ASSERT_EQ(1u, render_surface_layer_list.size());
ASSERT_EQ(1u, root->render_surface()->layer_list().size());
ASSERT_FALSE(root->screen_space_transform().IsInvertible());
// Hit testing any point should not hit the layer. If the invertible matrix is
// accidentally ignored and treated like an identity, then the hit testing
// will incorrectly hit the layer when it shouldn't.
gfx::Point test_point(1, 1);
LayerImpl* result_layer = LayerTreeHostCommon::FindLayerThatIsHitByPoint(
test_point, render_surface_layer_list);
EXPECT_FALSE(result_layer);
test_point = gfx::Point(10, 10);
result_layer = LayerTreeHostCommon::FindLayerThatIsHitByPoint(
test_point, render_surface_layer_list);
EXPECT_FALSE(result_layer);
test_point = gfx::Point(10, 30);
result_layer = LayerTreeHostCommon::FindLayerThatIsHitByPoint(
test_point, render_surface_layer_list);
EXPECT_FALSE(result_layer);
test_point = gfx::Point(50, 50);
result_layer = LayerTreeHostCommon::FindLayerThatIsHitByPoint(
test_point, render_surface_layer_list);
EXPECT_FALSE(result_layer);
test_point = gfx::Point(67, 48);
result_layer = LayerTreeHostCommon::FindLayerThatIsHitByPoint(
test_point, render_surface_layer_list);
EXPECT_FALSE(result_layer);
test_point = gfx::Point(99, 99);
result_layer = LayerTreeHostCommon::FindLayerThatIsHitByPoint(
test_point, render_surface_layer_list);
EXPECT_FALSE(result_layer);
test_point = gfx::Point(-1, -1);
result_layer = LayerTreeHostCommon::FindLayerThatIsHitByPoint(
test_point, render_surface_layer_list);
EXPECT_FALSE(result_layer);
}
TEST_F(LayerTreeHostCommonTest, HitTestingForSinglePositionedLayer) {
FakeImplProxy proxy;
FakeLayerTreeHostImpl host_impl(&proxy);
scoped_ptr<LayerImpl> root =
LayerImpl::Create(host_impl.active_tree(), 12345);
gfx::Transform identity_matrix;
gfx::PointF anchor;
// this layer is positioned, and hit testing should correctly know where the
// layer is located.
gfx::PointF position(50.f, 50.f);
gfx::Size bounds(100, 100);
SetLayerPropertiesForTesting(root.get(),
identity_matrix,
identity_matrix,
anchor,
position,
bounds,
false);
root->SetDrawsContent(true);
LayerImplList render_surface_layer_list;
LayerTreeHostCommon::CalcDrawPropsImplInputsForTesting inputs(
root.get(), root->bounds(), &render_surface_layer_list);
inputs.can_adjust_raster_scales = true;
LayerTreeHostCommon::CalculateDrawProperties(&inputs);
// Sanity check the scenario we just created.
ASSERT_EQ(1u, render_surface_layer_list.size());
ASSERT_EQ(1u, root->render_surface()->layer_list().size());
// Hit testing for a point outside the layer should return a null pointer.
gfx::Point test_point(49, 49);
LayerImpl* result_layer = LayerTreeHostCommon::FindLayerThatIsHitByPoint(
test_point, render_surface_layer_list);
EXPECT_FALSE(result_layer);
// Even though the layer exists at (101, 101), it should not be visible there
// since the root render surface would clamp it.
test_point = gfx::Point(101, 101);
result_layer = LayerTreeHostCommon::FindLayerThatIsHitByPoint(
test_point, render_surface_layer_list);
EXPECT_FALSE(result_layer);
// Hit testing for a point inside should return the root layer.
test_point = gfx::Point(51, 51);
result_layer = LayerTreeHostCommon::FindLayerThatIsHitByPoint(
test_point, render_surface_layer_list);
ASSERT_TRUE(result_layer);
EXPECT_EQ(12345, result_layer->id());
test_point = gfx::Point(99, 99);
result_layer = LayerTreeHostCommon::FindLayerThatIsHitByPoint(
test_point, render_surface_layer_list);
ASSERT_TRUE(result_layer);
EXPECT_EQ(12345, result_layer->id());
}
TEST_F(LayerTreeHostCommonTest, HitTestingForSingleRotatedLayer) {
FakeImplProxy proxy;
FakeLayerTreeHostImpl host_impl(&proxy);
scoped_ptr<LayerImpl> root =
LayerImpl::Create(host_impl.active_tree(), 12345);
gfx::Transform identity_matrix;
gfx::Transform rotation45_degrees_about_center;
rotation45_degrees_about_center.Translate(50.0, 50.0);
rotation45_degrees_about_center.RotateAboutZAxis(45.0);
rotation45_degrees_about_center.Translate(-50.0, -50.0);
gfx::PointF anchor;
gfx::PointF position;
gfx::Size bounds(100, 100);
SetLayerPropertiesForTesting(root.get(),
rotation45_degrees_about_center,
identity_matrix,
anchor,
position,
bounds,
false);
root->SetDrawsContent(true);
LayerImplList render_surface_layer_list;
LayerTreeHostCommon::CalcDrawPropsImplInputsForTesting inputs(
root.get(), root->bounds(), &render_surface_layer_list);
inputs.can_adjust_raster_scales = true;
LayerTreeHostCommon::CalculateDrawProperties(&inputs);
// Sanity check the scenario we just created.
ASSERT_EQ(1u, render_surface_layer_list.size());
ASSERT_EQ(1u, root->render_surface()->layer_list().size());
// Hit testing for points outside the layer.
// These corners would have been inside the un-transformed layer, but they
// should not hit the correctly transformed layer.
gfx::Point test_point(99, 99);
LayerImpl* result_layer = LayerTreeHostCommon::FindLayerThatIsHitByPoint(
test_point, render_surface_layer_list);
EXPECT_FALSE(result_layer);
test_point = gfx::Point(1, 1);
result_layer = LayerTreeHostCommon::FindLayerThatIsHitByPoint(
test_point, render_surface_layer_list);
EXPECT_FALSE(result_layer);
// Hit testing for a point inside should return the root layer.
test_point = gfx::Point(1, 50);
result_layer = LayerTreeHostCommon::FindLayerThatIsHitByPoint(
test_point, render_surface_layer_list);
ASSERT_TRUE(result_layer);
EXPECT_EQ(12345, result_layer->id());
// Hit testing the corners that would overlap the unclipped layer, but are
// outside the clipped region.
test_point = gfx::Point(50, -1);
result_layer = LayerTreeHostCommon::FindLayerThatIsHitByPoint(
test_point, render_surface_layer_list);
ASSERT_FALSE(result_layer);
test_point = gfx::Point(-1, 50);
result_layer = LayerTreeHostCommon::FindLayerThatIsHitByPoint(
test_point, render_surface_layer_list);
ASSERT_FALSE(result_layer);
}
TEST_F(LayerTreeHostCommonTest, HitTestingForSinglePerspectiveLayer) {
FakeImplProxy proxy;
FakeLayerTreeHostImpl host_impl(&proxy);
scoped_ptr<LayerImpl> root =
LayerImpl::Create(host_impl.active_tree(), 12345);
gfx::Transform identity_matrix;
// perspective_projection_about_center * translation_by_z is designed so that
// the 100 x 100 layer becomes 50 x 50, and remains centered at (50, 50).
gfx::Transform perspective_projection_about_center;
perspective_projection_about_center.Translate(50.0, 50.0);
perspective_projection_about_center.ApplyPerspectiveDepth(1.0);
perspective_projection_about_center.Translate(-50.0, -50.0);
gfx::Transform translation_by_z;
translation_by_z.Translate3d(0.0, 0.0, -1.0);
gfx::PointF anchor;
gfx::PointF position;
gfx::Size bounds(100, 100);
SetLayerPropertiesForTesting(
root.get(),
perspective_projection_about_center * translation_by_z,
identity_matrix,
anchor,
position,
bounds,
false);
root->SetDrawsContent(true);
LayerImplList render_surface_layer_list;
LayerTreeHostCommon::CalcDrawPropsImplInputsForTesting inputs(
root.get(), root->bounds(), &render_surface_layer_list);
inputs.can_adjust_raster_scales = true;
LayerTreeHostCommon::CalculateDrawProperties(&inputs);
// Sanity check the scenario we just created.
ASSERT_EQ(1u, render_surface_layer_list.size());
ASSERT_EQ(1u, root->render_surface()->layer_list().size());
// Hit testing for points outside the layer.
// These corners would have been inside the un-transformed layer, but they
// should not hit the correctly transformed layer.
gfx::Point test_point(24, 24);
LayerImpl* result_layer = LayerTreeHostCommon::FindLayerThatIsHitByPoint(
test_point, render_surface_layer_list);
EXPECT_FALSE(result_layer);
test_point = gfx::Point(76, 76);
result_layer = LayerTreeHostCommon::FindLayerThatIsHitByPoint(
test_point, render_surface_layer_list);
EXPECT_FALSE(result_layer);
// Hit testing for a point inside should return the root layer.
test_point = gfx::Point(26, 26);
result_layer = LayerTreeHostCommon::FindLayerThatIsHitByPoint(
test_point, render_surface_layer_list);
ASSERT_TRUE(result_layer);
EXPECT_EQ(12345, result_layer->id());
test_point = gfx::Point(74, 74);
result_layer = LayerTreeHostCommon::FindLayerThatIsHitByPoint(
test_point, render_surface_layer_list);
ASSERT_TRUE(result_layer);
EXPECT_EQ(12345, result_layer->id());
}
TEST_F(LayerTreeHostCommonTest, HitTestingForSingleLayerWithScaledContents) {
// A layer's visible content rect is actually in the layer's content space.
// The screen space transform converts from the layer's origin space to screen
// space. This test makes sure that hit testing works correctly accounts for
// the contents scale. A contents scale that is not 1 effectively forces a
// non-identity transform between layer's content space and layer's origin
// space. The hit testing code must take this into account.
//
// To test this, the layer is positioned at (25, 25), and is size (50, 50). If
// contents scale is ignored, then hit testing will mis-interpret the visible
// content rect as being larger than the actual bounds of the layer.
//
FakeImplProxy proxy;
FakeLayerTreeHostImpl host_impl(&proxy);
scoped_ptr<LayerImpl> root = LayerImpl::Create(host_impl.active_tree(), 1);
gfx::Transform identity_matrix;
gfx::PointF anchor;
SetLayerPropertiesForTesting(root.get(),
identity_matrix,
identity_matrix,
anchor,
gfx::PointF(),
gfx::Size(100, 100),
false);
{
gfx::PointF position(25.f, 25.f);
gfx::Size bounds(50, 50);
scoped_ptr<LayerImpl> test_layer =
LayerImpl::Create(host_impl.active_tree(), 12345);
SetLayerPropertiesForTesting(test_layer.get(),
identity_matrix,
identity_matrix,
anchor,
position,
bounds,
false);
// override content bounds and contents scale
test_layer->SetContentBounds(gfx::Size(100, 100));
test_layer->SetContentsScale(2, 2);
test_layer->SetDrawsContent(true);
root->AddChild(test_layer.Pass());
}
LayerImplList render_surface_layer_list;
LayerTreeHostCommon::CalcDrawPropsImplInputsForTesting inputs(
root.get(), root->bounds(), &render_surface_layer_list);
inputs.can_adjust_raster_scales = true;
LayerTreeHostCommon::CalculateDrawProperties(&inputs);
// Sanity check the scenario we just created.
// The visible content rect for test_layer is actually 100x100, even though
// its layout size is 50x50, positioned at 25x25.
LayerImpl* test_layer = root->children()[0];
EXPECT_RECT_EQ(gfx::Rect(0, 0, 100, 100),
test_layer->visible_content_rect());
ASSERT_EQ(1u, render_surface_layer_list.size());
ASSERT_EQ(1u, root->render_surface()->layer_list().size());
// Hit testing for a point outside the layer should return a null pointer (the
// root layer does not draw content, so it will not be hit tested either).
gfx::Point test_point(101, 101);
LayerImpl* result_layer = LayerTreeHostCommon::FindLayerThatIsHitByPoint(
test_point, render_surface_layer_list);
EXPECT_FALSE(result_layer);
test_point = gfx::Point(24, 24);
result_layer = LayerTreeHostCommon::FindLayerThatIsHitByPoint(
test_point, render_surface_layer_list);
EXPECT_FALSE(result_layer);
test_point = gfx::Point(76, 76);
result_layer = LayerTreeHostCommon::FindLayerThatIsHitByPoint(
test_point, render_surface_layer_list);
EXPECT_FALSE(result_layer);
// Hit testing for a point inside should return the test layer.
test_point = gfx::Point(26, 26);
result_layer = LayerTreeHostCommon::FindLayerThatIsHitByPoint(
test_point, render_surface_layer_list);
ASSERT_TRUE(result_layer);
EXPECT_EQ(12345, result_layer->id());
test_point = gfx::Point(74, 74);
result_layer = LayerTreeHostCommon::FindLayerThatIsHitByPoint(
test_point, render_surface_layer_list);
ASSERT_TRUE(result_layer);
EXPECT_EQ(12345, result_layer->id());
}
TEST_F(LayerTreeHostCommonTest, HitTestingForSimpleClippedLayer) {
// Test that hit-testing will only work for the visible portion of a layer,
// and not the entire layer bounds. Here we just test the simple axis-aligned
// case.
gfx::Transform identity_matrix;
gfx::PointF anchor;
FakeImplProxy proxy;
FakeLayerTreeHostImpl host_impl(&proxy);
scoped_ptr<LayerImpl> root = LayerImpl::Create(host_impl.active_tree(), 1);
SetLayerPropertiesForTesting(root.get(),
identity_matrix,
identity_matrix,
anchor,
gfx::PointF(),
gfx::Size(100, 100),
false);
{
scoped_ptr<LayerImpl> clipping_layer =
LayerImpl::Create(host_impl.active_tree(), 123);
// this layer is positioned, and hit testing should correctly know where the
// layer is located.
gfx::PointF position(25.f, 25.f);
gfx::Size bounds(50, 50);
SetLayerPropertiesForTesting(clipping_layer.get(),
identity_matrix,
identity_matrix,
anchor,
position,
bounds,
false);
clipping_layer->SetMasksToBounds(true);
scoped_ptr<LayerImpl> child =
LayerImpl::Create(host_impl.active_tree(), 456);
position = gfx::PointF(-50.f, -50.f);
bounds = gfx::Size(300, 300);
SetLayerPropertiesForTesting(child.get(),
identity_matrix,
identity_matrix,
anchor,
position,
bounds,
false);
child->SetDrawsContent(true);
clipping_layer->AddChild(child.Pass());
root->AddChild(clipping_layer.Pass());
}
LayerImplList render_surface_layer_list;
LayerTreeHostCommon::CalcDrawPropsImplInputsForTesting inputs(
root.get(), root->bounds(), &render_surface_layer_list);
inputs.can_adjust_raster_scales = true;
LayerTreeHostCommon::CalculateDrawProperties(&inputs);
// Sanity check the scenario we just created.
ASSERT_EQ(1u, render_surface_layer_list.size());
ASSERT_EQ(1u, root->render_surface()->layer_list().size());
ASSERT_EQ(456, root->render_surface()->layer_list().at(0)->id());
// Hit testing for a point outside the layer should return a null pointer.
// Despite the child layer being very large, it should be clipped to the root
// layer's bounds.
gfx::Point test_point(24, 24);
LayerImpl* result_layer = LayerTreeHostCommon::FindLayerThatIsHitByPoint(
test_point, render_surface_layer_list);
EXPECT_FALSE(result_layer);
// Even though the layer exists at (101, 101), it should not be visible there
// since the clipping_layer would clamp it.
test_point = gfx::Point(76, 76);
result_layer = LayerTreeHostCommon::FindLayerThatIsHitByPoint(
test_point, render_surface_layer_list);
EXPECT_FALSE(result_layer);
// Hit testing for a point inside should return the child layer.
test_point = gfx::Point(26, 26);
result_layer = LayerTreeHostCommon::FindLayerThatIsHitByPoint(
test_point, render_surface_layer_list);
ASSERT_TRUE(result_layer);
EXPECT_EQ(456, result_layer->id());
test_point = gfx::Point(74, 74);
result_layer = LayerTreeHostCommon::FindLayerThatIsHitByPoint(
test_point, render_surface_layer_list);
ASSERT_TRUE(result_layer);
EXPECT_EQ(456, result_layer->id());
}
TEST_F(LayerTreeHostCommonTest, HitTestingForMultiClippedRotatedLayer) {
// This test checks whether hit testing correctly avoids hit testing with
// multiple ancestors that clip in non axis-aligned ways. To pass this test,
// the hit testing algorithm needs to recognize that multiple parent layers
// may clip the layer, and should not actually hit those clipped areas.
//
// The child and grand_child layers are both initialized to clip the
// rotated_leaf. The child layer is rotated about the top-left corner, so that
// the root + child clips combined create a triangle. The rotated_leaf will
// only be visible where it overlaps this triangle.
//
FakeImplProxy proxy;
FakeLayerTreeHostImpl host_impl(&proxy);
scoped_ptr<LayerImpl> root = LayerImpl::Create(host_impl.active_tree(), 123);
gfx::Transform identity_matrix;
gfx::PointF anchor;
gfx::PointF position;
gfx::Size bounds(100, 100);
SetLayerPropertiesForTesting(root.get(),
identity_matrix,
identity_matrix,
anchor,
position,
bounds,
false);
root->SetMasksToBounds(true);
{
scoped_ptr<LayerImpl> child =
LayerImpl::Create(host_impl.active_tree(), 456);
scoped_ptr<LayerImpl> grand_child =
LayerImpl::Create(host_impl.active_tree(), 789);
scoped_ptr<LayerImpl> rotated_leaf =
LayerImpl::Create(host_impl.active_tree(), 2468);
position = gfx::PointF(10.f, 10.f);
bounds = gfx::Size(80, 80);
SetLayerPropertiesForTesting(child.get(),
identity_matrix,
identity_matrix,
anchor,
position,
bounds,
false);
child->SetMasksToBounds(true);
gfx::Transform rotation45_degrees_about_corner;
rotation45_degrees_about_corner.RotateAboutZAxis(45.0);
// remember, positioned with respect to its parent which is already at 10,
// 10
position = gfx::PointF();
bounds =
gfx::Size(200, 200); // to ensure it covers at least sqrt(2) * 100.
SetLayerPropertiesForTesting(grand_child.get(),
rotation45_degrees_about_corner,
identity_matrix,
anchor,
position,
bounds,
false);
grand_child->SetMasksToBounds(true);
// Rotates about the center of the layer
gfx::Transform rotated_leaf_transform;
rotated_leaf_transform.Translate(
-10.0, -10.0); // cancel out the grand_parent's position
rotated_leaf_transform.RotateAboutZAxis(
-45.0); // cancel out the corner 45-degree rotation of the parent.
rotated_leaf_transform.Translate(50.0, 50.0);
rotated_leaf_transform.RotateAboutZAxis(45.0);
rotated_leaf_transform.Translate(-50.0, -50.0);
position = gfx::PointF();
bounds = gfx::Size(100, 100);
SetLayerPropertiesForTesting(rotated_leaf.get(),
rotated_leaf_transform,
identity_matrix,
anchor,
position,
bounds,
false);
rotated_leaf->SetDrawsContent(true);
grand_child->AddChild(rotated_leaf.Pass());
child->AddChild(grand_child.Pass());
root->AddChild(child.Pass());
}
LayerImplList render_surface_layer_list;
LayerTreeHostCommon::CalcDrawPropsImplInputsForTesting inputs(
root.get(), root->bounds(), &render_surface_layer_list);
inputs.can_adjust_raster_scales = true;
LayerTreeHostCommon::CalculateDrawProperties(&inputs);
// Sanity check the scenario we just created.
// The grand_child is expected to create a render surface because it
// MasksToBounds and is not axis aligned.
ASSERT_EQ(2u, render_surface_layer_list.size());
ASSERT_EQ(
1u,
render_surface_layer_list.at(0)->render_surface()->layer_list().size());
ASSERT_EQ(789,
render_surface_layer_list.at(0)->render_surface()->layer_list().at(
0)->id()); // grand_child's surface.
ASSERT_EQ(
1u,
render_surface_layer_list.at(1)->render_surface()->layer_list().size());
ASSERT_EQ(
2468,
render_surface_layer_list[1]->render_surface()->layer_list().at(0)->id());
// (11, 89) is close to the the bottom left corner within the clip, but it is
// not inside the layer.
gfx::Point test_point(11, 89);
LayerImpl* result_layer = LayerTreeHostCommon::FindLayerThatIsHitByPoint(
test_point, render_surface_layer_list);
EXPECT_FALSE(result_layer);
// Closer inwards from the bottom left will overlap the layer.
test_point = gfx::Point(25, 75);
result_layer = LayerTreeHostCommon::FindLayerThatIsHitByPoint(
test_point, render_surface_layer_list);
ASSERT_TRUE(result_layer);
EXPECT_EQ(2468, result_layer->id());
// (4, 50) is inside the unclipped layer, but that corner of the layer should
// be clipped away by the grandparent and should not get hit. If hit testing
// blindly uses visible content rect without considering how parent may clip
// the layer, then hit testing would accidentally think that the point
// successfully hits the layer.
test_point = gfx::Point(4, 50);
result_layer = LayerTreeHostCommon::FindLayerThatIsHitByPoint(
test_point, render_surface_layer_list);
EXPECT_FALSE(result_layer);
// (11, 50) is inside the layer and within the clipped area.
test_point = gfx::Point(11, 50);
result_layer = LayerTreeHostCommon::FindLayerThatIsHitByPoint(
test_point, render_surface_layer_list);
ASSERT_TRUE(result_layer);
EXPECT_EQ(2468, result_layer->id());
// Around the middle, just to the right and up, would have hit the layer
// except that that area should be clipped away by the parent.
test_point = gfx::Point(51, 51);
result_layer = LayerTreeHostCommon::FindLayerThatIsHitByPoint(
test_point, render_surface_layer_list);
EXPECT_FALSE(result_layer);
// Around the middle, just to the left and down, should successfully hit the
// layer.
test_point = gfx::Point(49, 51);
result_layer = LayerTreeHostCommon::FindLayerThatIsHitByPoint(
test_point, render_surface_layer_list);
ASSERT_TRUE(result_layer);
EXPECT_EQ(2468, result_layer->id());
}
TEST_F(LayerTreeHostCommonTest, HitTestingForNonClippingIntermediateLayer) {
// This test checks that hit testing code does not accidentally clip to layer
// bounds for a layer that actually does not clip.
gfx::Transform identity_matrix;
gfx::PointF anchor;
FakeImplProxy proxy;
FakeLayerTreeHostImpl host_impl(&proxy);
scoped_ptr<LayerImpl> root = LayerImpl::Create(host_impl.active_tree(), 1);
SetLayerPropertiesForTesting(root.get(),
identity_matrix,
identity_matrix,
anchor,
gfx::PointF(),
gfx::Size(100, 100),
false);
{
scoped_ptr<LayerImpl> intermediate_layer =
LayerImpl::Create(host_impl.active_tree(), 123);
// this layer is positioned, and hit testing should correctly know where the
// layer is located.
gfx::PointF position(10.f, 10.f);
gfx::Size bounds(50, 50);
SetLayerPropertiesForTesting(intermediate_layer.get(),
identity_matrix,
identity_matrix,
anchor,
position,
bounds,
false);
// Sanity check the intermediate layer should not clip.
ASSERT_FALSE(intermediate_layer->masks_to_bounds());
ASSERT_FALSE(intermediate_layer->mask_layer());
// The child of the intermediate_layer is translated so that it does not
// overlap intermediate_layer at all. If child is incorrectly clipped, we
// would not be able to hit it successfully.
scoped_ptr<LayerImpl> child =
LayerImpl::Create(host_impl.active_tree(), 456);
position = gfx::PointF(60.f, 60.f); // 70, 70 in screen space
bounds = gfx::Size(20, 20);
SetLayerPropertiesForTesting(child.get(),
identity_matrix,
identity_matrix,
anchor,
position,
bounds,
false);
child->SetDrawsContent(true);
intermediate_layer->AddChild(child.Pass());
root->AddChild(intermediate_layer.Pass());
}
LayerImplList render_surface_layer_list;
LayerTreeHostCommon::CalcDrawPropsImplInputsForTesting inputs(
root.get(), root->bounds(), &render_surface_layer_list);
inputs.can_adjust_raster_scales = true;
LayerTreeHostCommon::CalculateDrawProperties(&inputs);
// Sanity check the scenario we just created.
ASSERT_EQ(1u, render_surface_layer_list.size());
ASSERT_EQ(1u, root->render_surface()->layer_list().size());
ASSERT_EQ(456, root->render_surface()->layer_list().at(0)->id());
// Hit testing for a point outside the layer should return a null pointer.
gfx::Point test_point(69, 69);
LayerImpl* result_layer = LayerTreeHostCommon::FindLayerThatIsHitByPoint(
test_point, render_surface_layer_list);
EXPECT_FALSE(result_layer);
test_point = gfx::Point(91, 91);
result_layer = LayerTreeHostCommon::FindLayerThatIsHitByPoint(
test_point, render_surface_layer_list);
EXPECT_FALSE(result_layer);
// Hit testing for a point inside should return the child layer.
test_point = gfx::Point(71, 71);
result_layer = LayerTreeHostCommon::FindLayerThatIsHitByPoint(
test_point, render_surface_layer_list);
ASSERT_TRUE(result_layer);
EXPECT_EQ(456, result_layer->id());
test_point = gfx::Point(89, 89);
result_layer = LayerTreeHostCommon::FindLayerThatIsHitByPoint(
test_point, render_surface_layer_list);
ASSERT_TRUE(result_layer);
EXPECT_EQ(456, result_layer->id());
}
TEST_F(LayerTreeHostCommonTest, HitTestingForMultipleLayers) {
FakeImplProxy proxy;
FakeLayerTreeHostImpl host_impl(&proxy);
scoped_ptr<LayerImpl> root = LayerImpl::Create(host_impl.active_tree(), 1);
gfx::Transform identity_matrix;
gfx::PointF anchor;
gfx::PointF position;
gfx::Size bounds(100, 100);
SetLayerPropertiesForTesting(root.get(),
identity_matrix,
identity_matrix,
anchor,
position,
bounds,
false);
root->SetDrawsContent(true);
{
// child 1 and child2 are initialized to overlap between x=50 and x=60.
// grand_child is set to overlap both child1 and child2 between y=50 and
// y=60. The expected stacking order is: (front) child2, (second)
// grand_child, (third) child1, and (back) the root layer behind all other
// layers.
scoped_ptr<LayerImpl> child1 =
LayerImpl::Create(host_impl.active_tree(), 2);
scoped_ptr<LayerImpl> child2 =
LayerImpl::Create(host_impl.active_tree(), 3);
scoped_ptr<LayerImpl> grand_child1 =
LayerImpl::Create(host_impl.active_tree(), 4);
position = gfx::PointF(10.f, 10.f);
bounds = gfx::Size(50, 50);
SetLayerPropertiesForTesting(child1.get(),
identity_matrix,
identity_matrix,
anchor,
position,
bounds,
false);
child1->SetDrawsContent(true);
position = gfx::PointF(50.f, 10.f);
bounds = gfx::Size(50, 50);
SetLayerPropertiesForTesting(child2.get(),
identity_matrix,
identity_matrix,
anchor,
position,
bounds,
false);
child2->SetDrawsContent(true);
// Remember that grand_child is positioned with respect to its parent (i.e.
// child1). In screen space, the intended position is (10, 50), with size
// 100 x 50.
position = gfx::PointF(0.f, 40.f);
bounds = gfx::Size(100, 50);
SetLayerPropertiesForTesting(grand_child1.get(),
identity_matrix,
identity_matrix,
anchor,
position,
bounds,
false);
grand_child1->SetDrawsContent(true);
child1->AddChild(grand_child1.Pass());
root->AddChild(child1.Pass());
root->AddChild(child2.Pass());
}
LayerImpl* child1 = root->children()[0];
LayerImpl* child2 = root->children()[1];
LayerImpl* grand_child1 = child1->children()[0];
LayerImplList render_surface_layer_list;
LayerTreeHostCommon::CalcDrawPropsImplInputsForTesting inputs(
root.get(), root->bounds(), &render_surface_layer_list);
inputs.can_adjust_raster_scales = true;
LayerTreeHostCommon::CalculateDrawProperties(&inputs);
// Sanity check the scenario we just created.
ASSERT_TRUE(child1);
ASSERT_TRUE(child2);
ASSERT_TRUE(grand_child1);
ASSERT_EQ(1u, render_surface_layer_list.size());
RenderSurfaceImpl* root_render_surface = root->render_surface();
ASSERT_EQ(4u, root_render_surface->layer_list().size());
ASSERT_EQ(1, root_render_surface->layer_list().at(0)->id()); // root layer
ASSERT_EQ(2, root_render_surface->layer_list().at(1)->id()); // child1
ASSERT_EQ(4, root_render_surface->layer_list().at(2)->id()); // grand_child1
ASSERT_EQ(3, root_render_surface->layer_list().at(3)->id()); // child2
// Nothing overlaps the root_layer at (1, 1), so hit testing there should find
// the root layer.
gfx::Point test_point = gfx::Point(1, 1);
LayerImpl* result_layer = LayerTreeHostCommon::FindLayerThatIsHitByPoint(
test_point, render_surface_layer_list);
ASSERT_TRUE(result_layer);
EXPECT_EQ(1, result_layer->id());
// At (15, 15), child1 and root are the only layers. child1 is expected to be
// on top.
test_point = gfx::Point(15, 15);
result_layer = LayerTreeHostCommon::FindLayerThatIsHitByPoint(
test_point, render_surface_layer_list);
ASSERT_TRUE(result_layer);
EXPECT_EQ(2, result_layer->id());
// At (51, 20), child1 and child2 overlap. child2 is expected to be on top.
test_point = gfx::Point(51, 20);
result_layer = LayerTreeHostCommon::FindLayerThatIsHitByPoint(
test_point, render_surface_layer_list);
ASSERT_TRUE(result_layer);
EXPECT_EQ(3, result_layer->id());
// At (80, 51), child2 and grand_child1 overlap. child2 is expected to be on
// top.
test_point = gfx::Point(80, 51);
result_layer = LayerTreeHostCommon::FindLayerThatIsHitByPoint(
test_point, render_surface_layer_list);
ASSERT_TRUE(result_layer);
EXPECT_EQ(3, result_layer->id());
// At (51, 51), all layers overlap each other. child2 is expected to be on top
// of all other layers.
test_point = gfx::Point(51, 51);
result_layer = LayerTreeHostCommon::FindLayerThatIsHitByPoint(
test_point, render_surface_layer_list);
ASSERT_TRUE(result_layer);
EXPECT_EQ(3, result_layer->id());
// At (20, 51), child1 and grand_child1 overlap. grand_child1 is expected to
// be on top.
test_point = gfx::Point(20, 51);
result_layer = LayerTreeHostCommon::FindLayerThatIsHitByPoint(
test_point, render_surface_layer_list);
ASSERT_TRUE(result_layer);
EXPECT_EQ(4, result_layer->id());
}
TEST_F(LayerTreeHostCommonTest, HitTestingForMultipleLayerLists) {
//
// The geometry is set up similarly to the previous case, but
// all layers are forced to be render surfaces now.
//
FakeImplProxy proxy;
FakeLayerTreeHostImpl host_impl(&proxy);
scoped_ptr<LayerImpl> root = LayerImpl::Create(host_impl.active_tree(), 1);
gfx::Transform identity_matrix;
gfx::PointF anchor;
gfx::PointF position;
gfx::Size bounds(100, 100);
SetLayerPropertiesForTesting(root.get(),
identity_matrix,
identity_matrix,
anchor,
position,
bounds,
false);
root->SetDrawsContent(true);
{
// child 1 and child2 are initialized to overlap between x=50 and x=60.
// grand_child is set to overlap both child1 and child2 between y=50 and
// y=60. The expected stacking order is: (front) child2, (second)
// grand_child, (third) child1, and (back) the root layer behind all other
// layers.
scoped_ptr<LayerImpl> child1 =
LayerImpl::Create(host_impl.active_tree(), 2);
scoped_ptr<LayerImpl> child2 =
LayerImpl::Create(host_impl.active_tree(), 3);
scoped_ptr<LayerImpl> grand_child1 =
LayerImpl::Create(host_impl.active_tree(), 4);
position = gfx::PointF(10.f, 10.f);
bounds = gfx::Size(50, 50);
SetLayerPropertiesForTesting(child1.get(),
identity_matrix,
identity_matrix,
anchor,
position,
bounds,
false);
child1->SetDrawsContent(true);
child1->SetForceRenderSurface(true);
position = gfx::PointF(50.f, 10.f);
bounds = gfx::Size(50, 50);
SetLayerPropertiesForTesting(child2.get(),
identity_matrix,
identity_matrix,
anchor,
position,
bounds,
false);
child2->SetDrawsContent(true);
child2->SetForceRenderSurface(true);
// Remember that grand_child is positioned with respect to its parent (i.e.
// child1). In screen space, the intended position is (10, 50), with size
// 100 x 50.
position = gfx::PointF(0.f, 40.f);
bounds = gfx::Size(100, 50);
SetLayerPropertiesForTesting(grand_child1.get(),
identity_matrix,
identity_matrix,
anchor,
position,
bounds,
false);
grand_child1->SetDrawsContent(true);
grand_child1->SetForceRenderSurface(true);
child1->AddChild(grand_child1.Pass());
root->AddChild(child1.Pass());
root->AddChild(child2.Pass());
}
LayerImpl* child1 = root->children()[0];
LayerImpl* child2 = root->children()[1];
LayerImpl* grand_child1 = child1->children()[0];
LayerImplList render_surface_layer_list;
LayerTreeHostCommon::CalcDrawPropsImplInputsForTesting inputs(
root.get(), root->bounds(), &render_surface_layer_list);
inputs.can_adjust_raster_scales = true;
LayerTreeHostCommon::CalculateDrawProperties(&inputs);
// Sanity check the scenario we just created.
ASSERT_TRUE(child1);
ASSERT_TRUE(child2);
ASSERT_TRUE(grand_child1);
ASSERT_TRUE(child1->render_surface());
ASSERT_TRUE(child2->render_surface());
ASSERT_TRUE(grand_child1->render_surface());
ASSERT_EQ(4u, render_surface_layer_list.size());
// The root surface has the root layer, and child1's and child2's render
// surfaces.
ASSERT_EQ(3u, root->render_surface()->layer_list().size());
// The child1 surface has the child1 layer and grand_child1's render surface.
ASSERT_EQ(2u, child1->render_surface()->layer_list().size());
ASSERT_EQ(1u, child2->render_surface()->layer_list().size());
ASSERT_EQ(1u, grand_child1->render_surface()->layer_list().size());
ASSERT_EQ(1, render_surface_layer_list.at(0)->id()); // root layer
ASSERT_EQ(2, render_surface_layer_list[1]->id()); // child1
ASSERT_EQ(4, render_surface_layer_list.at(2)->id()); // grand_child1
ASSERT_EQ(3, render_surface_layer_list[3]->id()); // child2
// Nothing overlaps the root_layer at (1, 1), so hit testing there should find
// the root layer.
gfx::Point test_point = gfx::Point(1, 1);
LayerImpl* result_layer = LayerTreeHostCommon::FindLayerThatIsHitByPoint(
test_point, render_surface_layer_list);
ASSERT_TRUE(result_layer);
EXPECT_EQ(1, result_layer->id());
// At (15, 15), child1 and root are the only layers. child1 is expected to be
// on top.
test_point = gfx::Point(15, 15);
result_layer = LayerTreeHostCommon::FindLayerThatIsHitByPoint(
test_point, render_surface_layer_list);
ASSERT_TRUE(result_layer);
EXPECT_EQ(2, result_layer->id());
// At (51, 20), child1 and child2 overlap. child2 is expected to be on top.
test_point = gfx::Point(51, 20);
result_layer = LayerTreeHostCommon::FindLayerThatIsHitByPoint(
test_point, render_surface_layer_list);
ASSERT_TRUE(result_layer);
EXPECT_EQ(3, result_layer->id());
// At (80, 51), child2 and grand_child1 overlap. child2 is expected to be on
// top.
test_point = gfx::Point(80, 51);
result_layer = LayerTreeHostCommon::FindLayerThatIsHitByPoint(
test_point, render_surface_layer_list);
ASSERT_TRUE(result_layer);
EXPECT_EQ(3, result_layer->id());
// At (51, 51), all layers overlap each other. child2 is expected to be on top
// of all other layers.
test_point = gfx::Point(51, 51);
result_layer = LayerTreeHostCommon::FindLayerThatIsHitByPoint(
test_point, render_surface_layer_list);
ASSERT_TRUE(result_layer);
EXPECT_EQ(3, result_layer->id());
// At (20, 51), child1 and grand_child1 overlap. grand_child1 is expected to
// be on top.
test_point = gfx::Point(20, 51);
result_layer = LayerTreeHostCommon::FindLayerThatIsHitByPoint(
test_point, render_surface_layer_list);
ASSERT_TRUE(result_layer);
EXPECT_EQ(4, result_layer->id());
}
TEST_F(LayerTreeHostCommonTest,
HitCheckingTouchHandlerRegionsForEmptyLayerList) {
// Hit checking on an empty render_surface_layer_list should return a null
// pointer.
LayerImplList render_surface_layer_list;
gfx::Point test_point(0, 0);
LayerImpl* result_layer =
LayerTreeHostCommon::FindLayerThatIsHitByPointInTouchHandlerRegion(
test_point, render_surface_layer_list);
EXPECT_FALSE(result_layer);
test_point = gfx::Point(10, 20);
result_layer =
LayerTreeHostCommon::FindLayerThatIsHitByPointInTouchHandlerRegion(
test_point, render_surface_layer_list);
EXPECT_FALSE(result_layer);
}
TEST_F(LayerTreeHostCommonTest, HitCheckingTouchHandlerRegionsForSingleLayer) {
FakeImplProxy proxy;
FakeLayerTreeHostImpl host_impl(&proxy);
scoped_ptr<LayerImpl> root =
LayerImpl::Create(host_impl.active_tree(), 12345);
gfx::Transform identity_matrix;
Region touch_handler_region(gfx::Rect(10, 10, 50, 50));
gfx::PointF anchor;
gfx::PointF position;
gfx::Size bounds(100, 100);
SetLayerPropertiesForTesting(root.get(),
identity_matrix,
identity_matrix,
anchor,
position,
bounds,
false);
root->SetDrawsContent(true);
LayerImplList render_surface_layer_list;
LayerTreeHostCommon::CalcDrawPropsImplInputsForTesting inputs(
root.get(), root->bounds(), &render_surface_layer_list);
inputs.can_adjust_raster_scales = true;
LayerTreeHostCommon::CalculateDrawProperties(&inputs);
// Sanity check the scenario we just created.
ASSERT_EQ(1u, render_surface_layer_list.size());
ASSERT_EQ(1u, root->render_surface()->layer_list().size());
// Hit checking for any point should return a null pointer for a layer without
// any touch event handler regions.
gfx::Point test_point(11, 11);
LayerImpl* result_layer =
LayerTreeHostCommon::FindLayerThatIsHitByPointInTouchHandlerRegion(
test_point, render_surface_layer_list);
EXPECT_FALSE(result_layer);
root->SetTouchEventHandlerRegion(touch_handler_region);
// Hit checking for a point outside the layer should return a null pointer.
test_point = gfx::Point(101, 101);
result_layer =
LayerTreeHostCommon::FindLayerThatIsHitByPointInTouchHandlerRegion(
test_point, render_surface_layer_list);
EXPECT_FALSE(result_layer);
test_point = gfx::Point(-1, -1);
result_layer =
LayerTreeHostCommon::FindLayerThatIsHitByPointInTouchHandlerRegion(
test_point, render_surface_layer_list);
EXPECT_FALSE(result_layer);
// Hit checking for a point inside the layer, but outside the touch handler
// region should return a null pointer.
test_point = gfx::Point(1, 1);
result_layer =
LayerTreeHostCommon::FindLayerThatIsHitByPointInTouchHandlerRegion(
test_point, render_surface_layer_list);
EXPECT_FALSE(result_layer);
test_point = gfx::Point(99, 99);
result_layer =
LayerTreeHostCommon::FindLayerThatIsHitByPointInTouchHandlerRegion(
test_point, render_surface_layer_list);
EXPECT_FALSE(result_layer);
// Hit checking for a point inside the touch event handler region should
// return the root layer.
test_point = gfx::Point(11, 11);
result_layer =
LayerTreeHostCommon::FindLayerThatIsHitByPointInTouchHandlerRegion(
test_point, render_surface_layer_list);
ASSERT_TRUE(result_layer);
EXPECT_EQ(12345, result_layer->id());
test_point = gfx::Point(59, 59);
result_layer =
LayerTreeHostCommon::FindLayerThatIsHitByPointInTouchHandlerRegion(
test_point, render_surface_layer_list);
ASSERT_TRUE(result_layer);
EXPECT_EQ(12345, result_layer->id());
}
TEST_F(LayerTreeHostCommonTest,
HitCheckingTouchHandlerRegionsForUninvertibleTransform) {
FakeImplProxy proxy;
FakeLayerTreeHostImpl host_impl(&proxy);
scoped_ptr<LayerImpl> root =
LayerImpl::Create(host_impl.active_tree(), 12345);
gfx::Transform uninvertible_transform;
uninvertible_transform.matrix().setDouble(0, 0, 0.0);
uninvertible_transform.matrix().setDouble(1, 1, 0.0);
uninvertible_transform.matrix().setDouble(2, 2, 0.0);
uninvertible_transform.matrix().setDouble(3, 3, 0.0);
ASSERT_FALSE(uninvertible_transform.IsInvertible());
gfx::Transform identity_matrix;
Region touch_handler_region(gfx::Rect(10, 10, 50, 50));
gfx::PointF anchor;
gfx::PointF position;
gfx::Size bounds(100, 100);
SetLayerPropertiesForTesting(root.get(),
uninvertible_transform,
identity_matrix,
anchor,
position,
bounds,
false);
root->SetDrawsContent(true);
root->SetTouchEventHandlerRegion(touch_handler_region);
LayerImplList render_surface_layer_list;
LayerTreeHostCommon::CalcDrawPropsImplInputsForTesting inputs(
root.get(), root->bounds(), &render_surface_layer_list);
inputs.can_adjust_raster_scales = true;
LayerTreeHostCommon::CalculateDrawProperties(&inputs);
// Sanity check the scenario we just created.
ASSERT_EQ(1u, render_surface_layer_list.size());
ASSERT_EQ(1u, root->render_surface()->layer_list().size());
ASSERT_FALSE(root->screen_space_transform().IsInvertible());
// Hit checking any point should not hit the touch handler region on the
// layer. If the invertible matrix is accidentally ignored and treated like an
// identity, then the hit testing will incorrectly hit the layer when it
// shouldn't.
gfx::Point test_point(1, 1);
LayerImpl* result_layer =
LayerTreeHostCommon::FindLayerThatIsHitByPointInTouchHandlerRegion(
test_point, render_surface_layer_list);
EXPECT_FALSE(result_layer);
test_point = gfx::Point(10, 10);
result_layer =
LayerTreeHostCommon::FindLayerThatIsHitByPointInTouchHandlerRegion(
test_point, render_surface_layer_list);
EXPECT_FALSE(result_layer);
test_point = gfx::Point(10, 30);
result_layer =
LayerTreeHostCommon::FindLayerThatIsHitByPointInTouchHandlerRegion(
test_point, render_surface_layer_list);
EXPECT_FALSE(result_layer);
test_point = gfx::Point(50, 50);
result_layer =
LayerTreeHostCommon::FindLayerThatIsHitByPointInTouchHandlerRegion(
test_point, render_surface_layer_list);
EXPECT_FALSE(result_layer);
test_point = gfx::Point(67, 48);
result_layer =
LayerTreeHostCommon::FindLayerThatIsHitByPointInTouchHandlerRegion(
test_point, render_surface_layer_list);
EXPECT_FALSE(result_layer);
test_point = gfx::Point(99, 99);
result_layer =
LayerTreeHostCommon::FindLayerThatIsHitByPointInTouchHandlerRegion(
test_point, render_surface_layer_list);
EXPECT_FALSE(result_layer);
test_point = gfx::Point(-1, -1);
result_layer =
LayerTreeHostCommon::FindLayerThatIsHitByPointInTouchHandlerRegion(
test_point, render_surface_layer_list);
EXPECT_FALSE(result_layer);
}
TEST_F(LayerTreeHostCommonTest,
HitCheckingTouchHandlerRegionsForSinglePositionedLayer) {
FakeImplProxy proxy;
FakeLayerTreeHostImpl host_impl(&proxy);
scoped_ptr<LayerImpl> root =
LayerImpl::Create(host_impl.active_tree(), 12345);
gfx::Transform identity_matrix;
Region touch_handler_region(gfx::Rect(10, 10, 50, 50));
gfx::PointF anchor;
// this layer is positioned, and hit testing should correctly know where the
// layer is located.
gfx::PointF position(50.f, 50.f);
gfx::Size bounds(100, 100);
SetLayerPropertiesForTesting(root.get(),
identity_matrix,
identity_matrix,
anchor,
position,
bounds,
false);
root->SetDrawsContent(true);
root->SetTouchEventHandlerRegion(touch_handler_region);
LayerImplList render_surface_layer_list;
LayerTreeHostCommon::CalcDrawPropsImplInputsForTesting inputs(
root.get(), root->bounds(), &render_surface_layer_list);
inputs.can_adjust_raster_scales = true;
LayerTreeHostCommon::CalculateDrawProperties(&inputs);
// Sanity check the scenario we just created.
ASSERT_EQ(1u, render_surface_layer_list.size());
ASSERT_EQ(1u, root->render_surface()->layer_list().size());
// Hit checking for a point outside the layer should return a null pointer.
gfx::Point test_point(49, 49);
LayerImpl* result_layer =
LayerTreeHostCommon::FindLayerThatIsHitByPointInTouchHandlerRegion(
test_point, render_surface_layer_list);
EXPECT_FALSE(result_layer);
// Even though the layer has a touch handler region containing (101, 101), it
// should not be visible there since the root render surface would clamp it.
test_point = gfx::Point(101, 101);
result_layer =
LayerTreeHostCommon::FindLayerThatIsHitByPointInTouchHandlerRegion(
test_point, render_surface_layer_list);
EXPECT_FALSE(result_layer);
// Hit checking for a point inside the layer, but outside the touch handler
// region should return a null pointer.
test_point = gfx::Point(51, 51);
result_layer =
LayerTreeHostCommon::FindLayerThatIsHitByPointInTouchHandlerRegion(
test_point, render_surface_layer_list);
EXPECT_FALSE(result_layer);
// Hit checking for a point inside the touch event handler region should
// return the root layer.
test_point = gfx::Point(61, 61);
result_layer =
LayerTreeHostCommon::FindLayerThatIsHitByPointInTouchHandlerRegion(
test_point, render_surface_layer_list);
ASSERT_TRUE(result_layer);
EXPECT_EQ(12345, result_layer->id());
test_point = gfx::Point(99, 99);
result_layer =
LayerTreeHostCommon::FindLayerThatIsHitByPointInTouchHandlerRegion(
test_point, render_surface_layer_list);
ASSERT_TRUE(result_layer);
EXPECT_EQ(12345, result_layer->id());
}
TEST_F(LayerTreeHostCommonTest,
HitCheckingTouchHandlerRegionsForSingleLayerWithScaledContents) {
// A layer's visible content rect is actually in the layer's content space.
// The screen space transform converts from the layer's origin space to screen
// space. This test makes sure that hit testing works correctly accounts for
// the contents scale. A contents scale that is not 1 effectively forces a
// non-identity transform between layer's content space and layer's origin
// space. The hit testing code must take this into account.
//
// To test this, the layer is positioned at (25, 25), and is size (50, 50). If
// contents scale is ignored, then hit checking will mis-interpret the visible
// content rect as being larger than the actual bounds of the layer.
//
FakeImplProxy proxy;
FakeLayerTreeHostImpl host_impl(&proxy);
scoped_ptr<LayerImpl> root = LayerImpl::Create(host_impl.active_tree(), 1);
gfx::Transform identity_matrix;
gfx::PointF anchor;
SetLayerPropertiesForTesting(root.get(),
identity_matrix,
identity_matrix,
anchor,
gfx::PointF(),
gfx::Size(100, 100),
false);
{
Region touch_handler_region(gfx::Rect(10, 10, 30, 30));
gfx::PointF position(25.f, 25.f);
gfx::Size bounds(50, 50);
scoped_ptr<LayerImpl> test_layer =
LayerImpl::Create(host_impl.active_tree(), 12345);
SetLayerPropertiesForTesting(test_layer.get(),
identity_matrix,
identity_matrix,
anchor,
position,
bounds,
false);
// override content bounds and contents scale
test_layer->SetContentBounds(gfx::Size(100, 100));
test_layer->SetContentsScale(2, 2);
test_layer->SetDrawsContent(true);
test_layer->SetTouchEventHandlerRegion(touch_handler_region);
root->AddChild(test_layer.Pass());
}
LayerImplList render_surface_layer_list;
LayerTreeHostCommon::CalcDrawPropsImplInputsForTesting inputs(
root.get(), root->bounds(), &render_surface_layer_list);
inputs.can_adjust_raster_scales = true;
LayerTreeHostCommon::CalculateDrawProperties(&inputs);
// Sanity check the scenario we just created.
// The visible content rect for test_layer is actually 100x100, even though
// its layout size is 50x50, positioned at 25x25.
LayerImpl* test_layer = root->children()[0];
EXPECT_RECT_EQ(gfx::Rect(0, 0, 100, 100), test_layer->visible_content_rect());
ASSERT_EQ(1u, render_surface_layer_list.size());
ASSERT_EQ(1u, root->render_surface()->layer_list().size());
// Hit checking for a point outside the layer should return a null pointer
// (the root layer does not draw content, so it will not be tested either).
gfx::Point test_point(76, 76);
LayerImpl* result_layer =
LayerTreeHostCommon::FindLayerThatIsHitByPointInTouchHandlerRegion(
test_point, render_surface_layer_list);
EXPECT_FALSE(result_layer);
// Hit checking for a point inside the layer, but outside the touch handler
// region should return a null pointer.
test_point = gfx::Point(26, 26);
result_layer =
LayerTreeHostCommon::FindLayerThatIsHitByPointInTouchHandlerRegion(
test_point, render_surface_layer_list);
EXPECT_FALSE(result_layer);
test_point = gfx::Point(34, 34);
result_layer =
LayerTreeHostCommon::FindLayerThatIsHitByPointInTouchHandlerRegion(
test_point, render_surface_layer_list);
EXPECT_FALSE(result_layer);
test_point = gfx::Point(65, 65);
result_layer =
LayerTreeHostCommon::FindLayerThatIsHitByPointInTouchHandlerRegion(
test_point, render_surface_layer_list);
EXPECT_FALSE(result_layer);
test_point = gfx::Point(74, 74);
result_layer =
LayerTreeHostCommon::FindLayerThatIsHitByPointInTouchHandlerRegion(
test_point, render_surface_layer_list);
EXPECT_FALSE(result_layer);
// Hit checking for a point inside the touch event handler region should
// return the root layer.
test_point = gfx::Point(35, 35);
result_layer =
LayerTreeHostCommon::FindLayerThatIsHitByPointInTouchHandlerRegion(
test_point, render_surface_layer_list);
ASSERT_TRUE(result_layer);
EXPECT_EQ(12345, result_layer->id());
test_point = gfx::Point(64, 64);
result_layer =
LayerTreeHostCommon::FindLayerThatIsHitByPointInTouchHandlerRegion(
test_point, render_surface_layer_list);
ASSERT_TRUE(result_layer);
EXPECT_EQ(12345, result_layer->id());
}
TEST_F(LayerTreeHostCommonTest,
HitCheckingTouchHandlerRegionsForSingleLayerWithDeviceScale) {
// The layer's device_scale_factor and page_scale_factor should scale the
// content rect and we should be able to hit the touch handler region by
// scaling the points accordingly.
FakeImplProxy proxy;
FakeLayerTreeHostImpl host_impl(&proxy);
scoped_ptr<LayerImpl> root = LayerImpl::Create(host_impl.active_tree(), 1);
gfx::Transform identity_matrix;
gfx::PointF anchor;
// Set the bounds of the root layer big enough to fit the child when scaled.
SetLayerPropertiesForTesting(root.get(),
identity_matrix,
identity_matrix,
anchor,
gfx::PointF(),
gfx::Size(100, 100),
false);
{
Region touch_handler_region(gfx::Rect(10, 10, 30, 30));
gfx::PointF position(25.f, 25.f);
gfx::Size bounds(50, 50);
scoped_ptr<LayerImpl> test_layer =
LayerImpl::Create(host_impl.active_tree(), 12345);
SetLayerPropertiesForTesting(test_layer.get(),
identity_matrix,
identity_matrix,
anchor,
position,
bounds,
false);
test_layer->SetDrawsContent(true);
test_layer->SetTouchEventHandlerRegion(touch_handler_region);
root->AddChild(test_layer.Pass());
}
LayerImplList render_surface_layer_list;
float device_scale_factor = 3.f;
float page_scale_factor = 5.f;
gfx::Size scaled_bounds_for_root = gfx::ToCeiledSize(
gfx::ScaleSize(root->bounds(), device_scale_factor * page_scale_factor));
LayerTreeHostCommon::CalcDrawPropsImplInputsForTesting inputs(
root.get(), scaled_bounds_for_root, &render_surface_layer_list);
inputs.device_scale_factor = device_scale_factor;
inputs.page_scale_factor = page_scale_factor;
inputs.page_scale_application_layer = root.get();
inputs.can_adjust_raster_scales = true;
LayerTreeHostCommon::CalculateDrawProperties(&inputs);
// Sanity check the scenario we just created.
// The visible content rect for test_layer is actually 100x100, even though
// its layout size is 50x50, positioned at 25x25.
LayerImpl* test_layer = root->children()[0];
ASSERT_EQ(1u, render_surface_layer_list.size());
ASSERT_EQ(1u, root->render_surface()->layer_list().size());
// Check whether the child layer fits into the root after scaled.
EXPECT_RECT_EQ(gfx::Rect(test_layer->content_bounds()),
test_layer->visible_content_rect());
// Hit checking for a point outside the layer should return a null pointer
// (the root layer does not draw content, so it will not be tested either).
gfx::PointF test_point(76.f, 76.f);
test_point =
gfx::ScalePoint(test_point, device_scale_factor * page_scale_factor);
LayerImpl* result_layer =
LayerTreeHostCommon::FindLayerThatIsHitByPointInTouchHandlerRegion(
test_point, render_surface_layer_list);
EXPECT_FALSE(result_layer);
// Hit checking for a point inside the layer, but outside the touch handler
// region should return a null pointer.
test_point = gfx::Point(26, 26);
test_point =
gfx::ScalePoint(test_point, device_scale_factor * page_scale_factor);
result_layer =
LayerTreeHostCommon::FindLayerThatIsHitByPointInTouchHandlerRegion(
test_point, render_surface_layer_list);
EXPECT_FALSE(result_layer);
test_point = gfx::Point(34, 34);
test_point =
gfx::ScalePoint(test_point, device_scale_factor * page_scale_factor);
result_layer =
LayerTreeHostCommon::FindLayerThatIsHitByPointInTouchHandlerRegion(
test_point, render_surface_layer_list);
EXPECT_FALSE(result_layer);
test_point = gfx::Point(65, 65);
test_point =
gfx::ScalePoint(test_point, device_scale_factor * page_scale_factor);
result_layer =
LayerTreeHostCommon::FindLayerThatIsHitByPointInTouchHandlerRegion(
test_point, render_surface_layer_list);
EXPECT_FALSE(result_layer);
test_point = gfx::Point(74, 74);
test_point =
gfx::ScalePoint(test_point, device_scale_factor * page_scale_factor);
result_layer =
LayerTreeHostCommon::FindLayerThatIsHitByPointInTouchHandlerRegion(
test_point, render_surface_layer_list);
EXPECT_FALSE(result_layer);
// Hit checking for a point inside the touch event handler region should
// return the root layer.
test_point = gfx::Point(35, 35);
test_point =
gfx::ScalePoint(test_point, device_scale_factor * page_scale_factor);
result_layer =
LayerTreeHostCommon::FindLayerThatIsHitByPointInTouchHandlerRegion(
test_point, render_surface_layer_list);
ASSERT_TRUE(result_layer);
EXPECT_EQ(12345, result_layer->id());
test_point = gfx::Point(64, 64);
test_point =
gfx::ScalePoint(test_point, device_scale_factor * page_scale_factor);
result_layer =
LayerTreeHostCommon::FindLayerThatIsHitByPointInTouchHandlerRegion(
test_point, render_surface_layer_list);
ASSERT_TRUE(result_layer);
EXPECT_EQ(12345, result_layer->id());
}
TEST_F(LayerTreeHostCommonTest,
HitCheckingTouchHandlerRegionsForSimpleClippedLayer) {
// Test that hit-checking will only work for the visible portion of a layer,
// and not the entire layer bounds. Here we just test the simple axis-aligned
// case.
gfx::Transform identity_matrix;
gfx::PointF anchor;
FakeImplProxy proxy;
FakeLayerTreeHostImpl host_impl(&proxy);
scoped_ptr<LayerImpl> root = LayerImpl::Create(host_impl.active_tree(), 1);
SetLayerPropertiesForTesting(root.get(),
identity_matrix,
identity_matrix,
anchor,
gfx::PointF(),
gfx::Size(100, 100),
false);
{
scoped_ptr<LayerImpl> clipping_layer =
LayerImpl::Create(host_impl.active_tree(), 123);
// this layer is positioned, and hit testing should correctly know where the
// layer is located.
gfx::PointF position(25.f, 25.f);
gfx::Size bounds(50, 50);
SetLayerPropertiesForTesting(clipping_layer.get(),
identity_matrix,
identity_matrix,
anchor,
position,
bounds,
false);
clipping_layer->SetMasksToBounds(true);
scoped_ptr<LayerImpl> child =
LayerImpl::Create(host_impl.active_tree(), 456);
Region touch_handler_region(gfx::Rect(10, 10, 50, 50));
position = gfx::PointF(-50.f, -50.f);
bounds = gfx::Size(300, 300);
SetLayerPropertiesForTesting(child.get(),
identity_matrix,
identity_matrix,
anchor,
position,
bounds,
false);
child->SetDrawsContent(true);
child->SetTouchEventHandlerRegion(touch_handler_region);
clipping_layer->AddChild(child.Pass());
root->AddChild(clipping_layer.Pass());
}
LayerImplList render_surface_layer_list;
LayerTreeHostCommon::CalcDrawPropsImplInputsForTesting inputs(
root.get(), root->bounds(), &render_surface_layer_list);
inputs.can_adjust_raster_scales = true;
LayerTreeHostCommon::CalculateDrawProperties(&inputs);
// Sanity check the scenario we just created.
ASSERT_EQ(1u, render_surface_layer_list.size());
ASSERT_EQ(1u, root->render_surface()->layer_list().size());
ASSERT_EQ(456, root->render_surface()->layer_list().at(0)->id());
// Hit checking for a point outside the layer should return a null pointer.
// Despite the child layer being very large, it should be clipped to the root
// layer's bounds.
gfx::Point test_point(24, 24);
LayerImpl* result_layer =
LayerTreeHostCommon::FindLayerThatIsHitByPointInTouchHandlerRegion(
test_point, render_surface_layer_list);
EXPECT_FALSE(result_layer);
// Hit checking for a point inside the layer, but outside the touch handler
// region should return a null pointer.
test_point = gfx::Point(35, 35);
result_layer =
LayerTreeHostCommon::FindLayerThatIsHitByPointInTouchHandlerRegion(
test_point, render_surface_layer_list);
EXPECT_FALSE(result_layer);
test_point = gfx::Point(74, 74);
result_layer =
LayerTreeHostCommon::FindLayerThatIsHitByPointInTouchHandlerRegion(
test_point, render_surface_layer_list);
EXPECT_FALSE(result_layer);
// Hit checking for a point inside the touch event handler region should
// return the root layer.
test_point = gfx::Point(25, 25);
result_layer =
LayerTreeHostCommon::FindLayerThatIsHitByPointInTouchHandlerRegion(
test_point, render_surface_layer_list);
ASSERT_TRUE(result_layer);
EXPECT_EQ(456, result_layer->id());
test_point = gfx::Point(34, 34);
result_layer =
LayerTreeHostCommon::FindLayerThatIsHitByPointInTouchHandlerRegion(
test_point, render_surface_layer_list);
ASSERT_TRUE(result_layer);
EXPECT_EQ(456, result_layer->id());
}
class NoScaleContentLayer : public ContentLayer {
public:
static scoped_refptr<NoScaleContentLayer> Create(ContentLayerClient* client) {
return make_scoped_refptr(new NoScaleContentLayer(client));
}
virtual void CalculateContentsScale(float ideal_contents_scale,
float device_scale_factor,
float page_scale_factor,
bool animating_transform_to_screen,
float* contents_scale_x,
float* contents_scale_y,
gfx::Size* content_bounds) OVERRIDE {
// Skip over the ContentLayer to the base Layer class.
Layer::CalculateContentsScale(ideal_contents_scale,
device_scale_factor,
page_scale_factor,
animating_transform_to_screen,
contents_scale_x,
contents_scale_y,
content_bounds);
}
protected:
explicit NoScaleContentLayer(ContentLayerClient* client)
: ContentLayer(client) {}
virtual ~NoScaleContentLayer() {}
};
scoped_refptr<NoScaleContentLayer> CreateNoScaleDrawableContentLayer(
ContentLayerClient* delegate) {
scoped_refptr<NoScaleContentLayer> to_return =
NoScaleContentLayer::Create(delegate);
to_return->SetIsDrawable(true);
return to_return;
}
TEST_F(LayerTreeHostCommonTest, LayerTransformsInHighDPI) {
// Verify draw and screen space transforms of layers not in a surface.
MockContentLayerClient delegate;
gfx::Transform identity_matrix;
scoped_refptr<ContentLayer> parent = CreateDrawableContentLayer(&delegate);
SetLayerPropertiesForTesting(parent.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(100, 100),
true);
scoped_refptr<ContentLayer> child = CreateDrawableContentLayer(&delegate);
SetLayerPropertiesForTesting(child.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(2.f, 2.f),
gfx::Size(10, 10),
true);
scoped_refptr<ContentLayer> child_empty =
CreateDrawableContentLayer(&delegate);
SetLayerPropertiesForTesting(child_empty.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(2.f, 2.f),
gfx::Size(),
true);
scoped_refptr<NoScaleContentLayer> child_no_scale =
CreateNoScaleDrawableContentLayer(&delegate);
SetLayerPropertiesForTesting(child_no_scale.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(2.f, 2.f),
gfx::Size(10, 10),
true);
parent->AddChild(child);
parent->AddChild(child_empty);
parent->AddChild(child_no_scale);
scoped_ptr<FakeLayerTreeHost> host = FakeLayerTreeHost::Create();
host->SetRootLayer(parent);
float device_scale_factor = 2.5f;
float page_scale_factor = 1.f;
RenderSurfaceLayerList render_surface_layer_list;
LayerTreeHostCommon::CalcDrawPropsMainInputsForTesting inputs(
parent.get(), parent->bounds(), &render_surface_layer_list);
inputs.device_scale_factor = device_scale_factor;
inputs.page_scale_factor = page_scale_factor;
inputs.can_adjust_raster_scales = true;
LayerTreeHostCommon::CalculateDrawProperties(&inputs);
EXPECT_CONTENTS_SCALE_EQ(device_scale_factor * page_scale_factor, parent);
EXPECT_CONTENTS_SCALE_EQ(device_scale_factor * page_scale_factor, child);
EXPECT_CONTENTS_SCALE_EQ(device_scale_factor * page_scale_factor,
child_empty);
EXPECT_CONTENTS_SCALE_EQ(1, child_no_scale);
EXPECT_EQ(1u, render_surface_layer_list.size());
// Verify parent transforms
gfx::Transform expected_parent_transform;
EXPECT_TRANSFORMATION_MATRIX_EQ(expected_parent_transform,
parent->screen_space_transform());
EXPECT_TRANSFORMATION_MATRIX_EQ(expected_parent_transform,
parent->draw_transform());
// Verify results of transformed parent rects
gfx::RectF parent_content_bounds(parent->content_bounds());
gfx::RectF parent_draw_rect =
MathUtil::MapClippedRect(parent->draw_transform(), parent_content_bounds);
gfx::RectF parent_screen_space_rect = MathUtil::MapClippedRect(
parent->screen_space_transform(), parent_content_bounds);
gfx::RectF expected_parent_draw_rect(parent->bounds());
expected_parent_draw_rect.Scale(device_scale_factor);
EXPECT_FLOAT_RECT_EQ(expected_parent_draw_rect, parent_draw_rect);
EXPECT_FLOAT_RECT_EQ(expected_parent_draw_rect, parent_screen_space_rect);
// Verify child and child_empty transforms. They should match.
gfx::Transform expected_child_transform;
expected_child_transform.Translate(
device_scale_factor * child->position().x(),
device_scale_factor * child->position().y());
EXPECT_TRANSFORMATION_MATRIX_EQ(expected_child_transform,
child->draw_transform());
EXPECT_TRANSFORMATION_MATRIX_EQ(expected_child_transform,
child->screen_space_transform());
EXPECT_TRANSFORMATION_MATRIX_EQ(expected_child_transform,
child_empty->draw_transform());
EXPECT_TRANSFORMATION_MATRIX_EQ(expected_child_transform,
child_empty->screen_space_transform());
// Verify results of transformed child and child_empty rects. They should
// match.
gfx::RectF child_content_bounds(child->content_bounds());
gfx::RectF child_draw_rect =
MathUtil::MapClippedRect(child->draw_transform(), child_content_bounds);
gfx::RectF child_screen_space_rect = MathUtil::MapClippedRect(
child->screen_space_transform(), child_content_bounds);
gfx::RectF child_empty_draw_rect = MathUtil::MapClippedRect(
child_empty->draw_transform(), child_content_bounds);
gfx::RectF child_empty_screen_space_rect = MathUtil::MapClippedRect(
child_empty->screen_space_transform(), child_content_bounds);
gfx::RectF expected_child_draw_rect(child->position(), child->bounds());
expected_child_draw_rect.Scale(device_scale_factor);
EXPECT_FLOAT_RECT_EQ(expected_child_draw_rect, child_draw_rect);
EXPECT_FLOAT_RECT_EQ(expected_child_draw_rect, child_screen_space_rect);
EXPECT_FLOAT_RECT_EQ(expected_child_draw_rect, child_empty_draw_rect);
EXPECT_FLOAT_RECT_EQ(expected_child_draw_rect, child_empty_screen_space_rect);
// Verify child_no_scale transforms
gfx::Transform expected_child_no_scale_transform = child->draw_transform();
// All transforms operate on content rects. The child's content rect
// incorporates device scale, but the child_no_scale does not; add it here.
expected_child_no_scale_transform.Scale(device_scale_factor,
device_scale_factor);
EXPECT_TRANSFORMATION_MATRIX_EQ(expected_child_no_scale_transform,
child_no_scale->draw_transform());
EXPECT_TRANSFORMATION_MATRIX_EQ(expected_child_no_scale_transform,
child_no_scale->screen_space_transform());
}
TEST_F(LayerTreeHostCommonTest, SurfaceLayerTransformsInHighDPI) {
// Verify draw and screen space transforms of layers in a surface.
MockContentLayerClient delegate;
gfx::Transform identity_matrix;
gfx::Transform perspective_matrix;
perspective_matrix.ApplyPerspectiveDepth(2.0);
gfx::Transform scale_small_matrix;
scale_small_matrix.Scale(1.0 / 10.0, 1.0 / 12.0);
scoped_refptr<Layer> root = Layer::Create();
scoped_refptr<ContentLayer> parent = CreateDrawableContentLayer(&delegate);
SetLayerPropertiesForTesting(parent.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(100, 100),
true);
scoped_refptr<ContentLayer> perspective_surface =
CreateDrawableContentLayer(&delegate);
SetLayerPropertiesForTesting(perspective_surface.get(),
perspective_matrix * scale_small_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(2.f, 2.f),
gfx::Size(10, 10),
true);
scoped_refptr<ContentLayer> scale_surface =
CreateDrawableContentLayer(&delegate);
SetLayerPropertiesForTesting(scale_surface.get(),
scale_small_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(2.f, 2.f),
gfx::Size(10, 10),
true);
perspective_surface->SetForceRenderSurface(true);
scale_surface->SetForceRenderSurface(true);
parent->AddChild(perspective_surface);
parent->AddChild(scale_surface);
root->AddChild(parent);
scoped_ptr<FakeLayerTreeHost> host = FakeLayerTreeHost::Create();
host->SetRootLayer(root);
float device_scale_factor = 2.5f;
float page_scale_factor = 3.f;
RenderSurfaceLayerList render_surface_layer_list;
LayerTreeHostCommon::CalcDrawPropsMainInputsForTesting inputs(
root.get(), parent->bounds(), &render_surface_layer_list);
inputs.device_scale_factor = device_scale_factor;
inputs.page_scale_factor = page_scale_factor;
inputs.page_scale_application_layer = root;
inputs.can_adjust_raster_scales = true;
LayerTreeHostCommon::CalculateDrawProperties(&inputs);
EXPECT_CONTENTS_SCALE_EQ(device_scale_factor * page_scale_factor, parent);
EXPECT_CONTENTS_SCALE_EQ(device_scale_factor * page_scale_factor,
perspective_surface);
EXPECT_CONTENTS_SCALE_EQ(device_scale_factor * page_scale_factor,
scale_surface);
EXPECT_EQ(3u, render_surface_layer_list.size());
gfx::Transform expected_parent_draw_transform;
EXPECT_TRANSFORMATION_MATRIX_EQ(expected_parent_draw_transform,
parent->draw_transform());
// The scaled surface is rendered at its appropriate scale, and drawn 1:1
// into its target.
gfx::Transform expected_scale_surface_draw_transform;
expected_scale_surface_draw_transform.Translate(
device_scale_factor * page_scale_factor * scale_surface->position().x(),
device_scale_factor * page_scale_factor * scale_surface->position().y());
EXPECT_TRANSFORMATION_MATRIX_EQ(
expected_scale_surface_draw_transform,
scale_surface->render_surface()->draw_transform());
gfx::Transform expected_scale_surface_layer_draw_transform =
scale_small_matrix;
EXPECT_TRANSFORMATION_MATRIX_EQ(expected_scale_surface_layer_draw_transform,
scale_surface->draw_transform());
// The scale for the perspective surface is not known, so it is rendered 1:1
// with the screen, and then scaled during drawing.
gfx::Transform expected_perspective_surface_draw_transform;
expected_perspective_surface_draw_transform.Translate(
device_scale_factor * page_scale_factor *
perspective_surface->position().x(),
device_scale_factor * page_scale_factor *
perspective_surface->position().y());
expected_perspective_surface_draw_transform.PreconcatTransform(
perspective_matrix);
expected_perspective_surface_draw_transform.PreconcatTransform(
scale_small_matrix);
gfx::Transform expected_perspective_surface_layer_draw_transform;
EXPECT_TRANSFORMATION_MATRIX_EQ(
expected_perspective_surface_draw_transform,
perspective_surface->render_surface()->draw_transform());
EXPECT_TRANSFORMATION_MATRIX_EQ(
expected_perspective_surface_layer_draw_transform,
perspective_surface->draw_transform());
}
TEST_F(LayerTreeHostCommonTest,
LayerTransformsInHighDPIAccurateScaleZeroChildPosition) {
// Verify draw and screen space transforms of layers not in a surface.
MockContentLayerClient delegate;
gfx::Transform identity_matrix;
scoped_refptr<ContentLayer> parent = CreateDrawableContentLayer(&delegate);
SetLayerPropertiesForTesting(parent.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(133, 133),
true);
scoped_refptr<ContentLayer> child = CreateDrawableContentLayer(&delegate);
SetLayerPropertiesForTesting(child.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(13, 13),
true);
scoped_refptr<NoScaleContentLayer> child_no_scale =
CreateNoScaleDrawableContentLayer(&delegate);
SetLayerPropertiesForTesting(child_no_scale.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(13, 13),
true);
parent->AddChild(child);
parent->AddChild(child_no_scale);
scoped_ptr<FakeLayerTreeHost> host = FakeLayerTreeHost::Create();
host->SetRootLayer(parent);
float device_scale_factor = 1.7f;
float page_scale_factor = 1.f;
RenderSurfaceLayerList render_surface_layer_list;
LayerTreeHostCommon::CalcDrawPropsMainInputsForTesting inputs(
parent.get(), parent->bounds(), &render_surface_layer_list);
inputs.device_scale_factor = device_scale_factor;
inputs.page_scale_factor = page_scale_factor;
inputs.page_scale_application_layer = parent.get();
inputs.can_adjust_raster_scales = true;
LayerTreeHostCommon::CalculateDrawProperties(&inputs);
EXPECT_CONTENTS_SCALE_EQ(device_scale_factor * page_scale_factor, parent);
EXPECT_CONTENTS_SCALE_EQ(device_scale_factor * page_scale_factor, child);
EXPECT_CONTENTS_SCALE_EQ(1, child_no_scale);
EXPECT_EQ(1u, render_surface_layer_list.size());
// Verify parent transforms
gfx::Transform expected_parent_transform;
EXPECT_TRANSFORMATION_MATRIX_EQ(expected_parent_transform,
parent->screen_space_transform());
EXPECT_TRANSFORMATION_MATRIX_EQ(expected_parent_transform,
parent->draw_transform());
// Verify results of transformed parent rects
gfx::RectF parent_content_bounds(parent->content_bounds());
gfx::RectF parent_draw_rect =
MathUtil::MapClippedRect(parent->draw_transform(), parent_content_bounds);
gfx::RectF parent_screen_space_rect = MathUtil::MapClippedRect(
parent->screen_space_transform(), parent_content_bounds);
gfx::RectF expected_parent_draw_rect(parent->bounds());
expected_parent_draw_rect.Scale(device_scale_factor);
expected_parent_draw_rect.set_width(ceil(expected_parent_draw_rect.width()));
expected_parent_draw_rect.set_height(
ceil(expected_parent_draw_rect.height()));
EXPECT_FLOAT_RECT_EQ(expected_parent_draw_rect, parent_draw_rect);
EXPECT_FLOAT_RECT_EQ(expected_parent_draw_rect, parent_screen_space_rect);
// Verify child transforms
gfx::Transform expected_child_transform;
EXPECT_TRANSFORMATION_MATRIX_EQ(expected_child_transform,
child->draw_transform());
EXPECT_TRANSFORMATION_MATRIX_EQ(expected_child_transform,
child->screen_space_transform());
// Verify results of transformed child rects
gfx::RectF child_content_bounds(child->content_bounds());
gfx::RectF child_draw_rect =
MathUtil::MapClippedRect(child->draw_transform(), child_content_bounds);
gfx::RectF child_screen_space_rect = MathUtil::MapClippedRect(
child->screen_space_transform(), child_content_bounds);
gfx::RectF expected_child_draw_rect(child->bounds());
expected_child_draw_rect.Scale(device_scale_factor);
expected_child_draw_rect.set_width(ceil(expected_child_draw_rect.width()));
expected_child_draw_rect.set_height(ceil(expected_child_draw_rect.height()));
EXPECT_FLOAT_RECT_EQ(expected_child_draw_rect, child_draw_rect);
EXPECT_FLOAT_RECT_EQ(expected_child_draw_rect, child_screen_space_rect);
// Verify child_no_scale transforms
gfx::Transform expected_child_no_scale_transform = child->draw_transform();
// All transforms operate on content rects. The child's content rect
// incorporates device scale, but the child_no_scale does not; add it here.
expected_child_no_scale_transform.Scale(device_scale_factor,
device_scale_factor);
EXPECT_TRANSFORMATION_MATRIX_EQ(expected_child_no_scale_transform,
child_no_scale->draw_transform());
EXPECT_TRANSFORMATION_MATRIX_EQ(expected_child_no_scale_transform,
child_no_scale->screen_space_transform());
}
TEST_F(LayerTreeHostCommonTest, ContentsScale) {
MockContentLayerClient delegate;
gfx::Transform identity_matrix;
gfx::Transform parent_scale_matrix;
double initial_parent_scale = 1.75;
parent_scale_matrix.Scale(initial_parent_scale, initial_parent_scale);
gfx::Transform child_scale_matrix;
double initial_child_scale = 1.25;
child_scale_matrix.Scale(initial_child_scale, initial_child_scale);
scoped_refptr<Layer> root = Layer::Create();
root->SetBounds(gfx::Size(100, 100));
scoped_refptr<ContentLayer> parent = CreateDrawableContentLayer(&delegate);
SetLayerPropertiesForTesting(parent.get(),
parent_scale_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(100, 100),
true);
scoped_refptr<ContentLayer> child_scale =
CreateDrawableContentLayer(&delegate);
SetLayerPropertiesForTesting(child_scale.get(),
child_scale_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(2.f, 2.f),
gfx::Size(10, 10),
true);
scoped_refptr<ContentLayer> child_empty =
CreateDrawableContentLayer(&delegate);
SetLayerPropertiesForTesting(child_empty.get(),
child_scale_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(2.f, 2.f),
gfx::Size(),
true);
scoped_refptr<NoScaleContentLayer> child_no_scale =
CreateNoScaleDrawableContentLayer(&delegate);
SetLayerPropertiesForTesting(child_no_scale.get(),
child_scale_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(12.f, 12.f),
gfx::Size(10, 10),
true);
root->AddChild(parent);
parent->AddChild(child_scale);
parent->AddChild(child_empty);
parent->AddChild(child_no_scale);
scoped_ptr<FakeLayerTreeHost> host = FakeLayerTreeHost::Create();
host->SetRootLayer(root);
float device_scale_factor = 2.5f;
float page_scale_factor = 1.f;
{
RenderSurfaceLayerList render_surface_layer_list;
LayerTreeHostCommon::CalcDrawPropsMainInputsForTesting inputs(
root.get(), root->bounds(), &render_surface_layer_list);
inputs.device_scale_factor = device_scale_factor;
inputs.page_scale_factor = page_scale_factor;
inputs.page_scale_application_layer = root.get();
inputs.can_adjust_raster_scales = true;
LayerTreeHostCommon::CalculateDrawProperties(&inputs);
EXPECT_CONTENTS_SCALE_EQ(device_scale_factor * page_scale_factor *
initial_parent_scale, parent);
EXPECT_CONTENTS_SCALE_EQ(device_scale_factor * page_scale_factor *
initial_parent_scale * initial_child_scale,
child_scale);
EXPECT_CONTENTS_SCALE_EQ(device_scale_factor * page_scale_factor *
initial_parent_scale * initial_child_scale,
child_empty);
EXPECT_CONTENTS_SCALE_EQ(1, child_no_scale);
// The parent is scaled up and shouldn't need to scale during draw. The
// child that can scale its contents should also not need to scale during
// draw. This shouldn't change if the child has empty bounds. The other
// children should.
EXPECT_FLOAT_EQ(1.0, parent->draw_transform().matrix().getDouble(0, 0));
EXPECT_FLOAT_EQ(1.0, parent->draw_transform().matrix().getDouble(1, 1));
EXPECT_FLOAT_EQ(1.0,
child_scale->draw_transform().matrix().getDouble(0, 0));
EXPECT_FLOAT_EQ(1.0,
child_scale->draw_transform().matrix().getDouble(1, 1));
EXPECT_FLOAT_EQ(1.0,
child_empty->draw_transform().matrix().getDouble(0, 0));
EXPECT_FLOAT_EQ(1.0,
child_empty->draw_transform().matrix().getDouble(1, 1));
EXPECT_FLOAT_EQ(device_scale_factor * page_scale_factor *
initial_parent_scale * initial_child_scale,
child_no_scale->draw_transform().matrix().getDouble(0, 0));
EXPECT_FLOAT_EQ(device_scale_factor * page_scale_factor *
initial_parent_scale * initial_child_scale,
child_no_scale->draw_transform().matrix().getDouble(1, 1));
}
// If the device_scale_factor or page_scale_factor changes, then it should be
// updated using the initial transform as the raster scale.
device_scale_factor = 2.25f;
page_scale_factor = 1.25f;
{
RenderSurfaceLayerList render_surface_layer_list;
LayerTreeHostCommon::CalcDrawPropsMainInputsForTesting inputs(
root.get(), root->bounds(), &render_surface_layer_list);
inputs.device_scale_factor = device_scale_factor;
inputs.page_scale_factor = page_scale_factor;
inputs.page_scale_application_layer = root.get();
inputs.can_adjust_raster_scales = true;
LayerTreeHostCommon::CalculateDrawProperties(&inputs);
EXPECT_CONTENTS_SCALE_EQ(
device_scale_factor * page_scale_factor * initial_parent_scale, parent);
EXPECT_CONTENTS_SCALE_EQ(device_scale_factor * page_scale_factor *
initial_parent_scale * initial_child_scale,
child_scale);
EXPECT_CONTENTS_SCALE_EQ(device_scale_factor * page_scale_factor *
initial_parent_scale * initial_child_scale,
child_empty);
EXPECT_CONTENTS_SCALE_EQ(1, child_no_scale);
}
// If the transform changes, we expect the raster scale to be reset to 1.0.
double second_child_scale = 1.75;
child_scale_matrix.Scale(second_child_scale / initial_child_scale,
second_child_scale / initial_child_scale);
child_scale->SetTransform(child_scale_matrix);
child_empty->SetTransform(child_scale_matrix);
{
RenderSurfaceLayerList render_surface_layer_list;
LayerTreeHostCommon::CalcDrawPropsMainInputsForTesting inputs(
root.get(), root->bounds(), &render_surface_layer_list);
inputs.device_scale_factor = device_scale_factor;
inputs.page_scale_factor = page_scale_factor;
inputs.page_scale_application_layer = root.get();
inputs.can_adjust_raster_scales = true;
LayerTreeHostCommon::CalculateDrawProperties(&inputs);
EXPECT_CONTENTS_SCALE_EQ(device_scale_factor * page_scale_factor *
initial_parent_scale,
parent);
EXPECT_CONTENTS_SCALE_EQ(device_scale_factor * page_scale_factor,
child_scale);
EXPECT_CONTENTS_SCALE_EQ(device_scale_factor * page_scale_factor,
child_empty);
EXPECT_CONTENTS_SCALE_EQ(1, child_no_scale);
}
// If the device_scale_factor or page_scale_factor changes, then it should be
// updated, but still using 1.0 as the raster scale.
device_scale_factor = 2.75f;
page_scale_factor = 1.75f;
{
RenderSurfaceLayerList render_surface_layer_list;
LayerTreeHostCommon::CalcDrawPropsMainInputsForTesting inputs(
root.get(), root->bounds(), &render_surface_layer_list);
inputs.device_scale_factor = device_scale_factor;
inputs.page_scale_factor = page_scale_factor;
inputs.page_scale_application_layer = root.get();
inputs.can_adjust_raster_scales = true;
LayerTreeHostCommon::CalculateDrawProperties(&inputs);
EXPECT_CONTENTS_SCALE_EQ(device_scale_factor * page_scale_factor *
initial_parent_scale,
parent);
EXPECT_CONTENTS_SCALE_EQ(device_scale_factor * page_scale_factor,
child_scale);
EXPECT_CONTENTS_SCALE_EQ(device_scale_factor * page_scale_factor,
child_empty);
EXPECT_CONTENTS_SCALE_EQ(1, child_no_scale);
}
}
TEST_F(LayerTreeHostCommonTest,
ContentsScale_LayerTransformsDontAffectContentsScale) {
MockContentLayerClient delegate;
gfx::Transform identity_matrix;
gfx::Transform parent_scale_matrix;
double initial_parent_scale = 1.75;
parent_scale_matrix.Scale(initial_parent_scale, initial_parent_scale);
gfx::Transform child_scale_matrix;
double initial_child_scale = 1.25;
child_scale_matrix.Scale(initial_child_scale, initial_child_scale);
scoped_refptr<Layer> root = Layer::Create();
root->SetBounds(gfx::Size(100, 100));
scoped_refptr<ContentLayer> parent = CreateDrawableContentLayer(&delegate);
SetLayerPropertiesForTesting(parent.get(),
parent_scale_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(100, 100),
true);
scoped_refptr<ContentLayer> child_scale =
CreateDrawableContentLayer(&delegate);
SetLayerPropertiesForTesting(child_scale.get(),
child_scale_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(2.f, 2.f),
gfx::Size(10, 10),
true);
scoped_refptr<ContentLayer> child_empty =
CreateDrawableContentLayer(&delegate);
SetLayerPropertiesForTesting(child_empty.get(),
child_scale_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(2.f, 2.f),
gfx::Size(),
true);
scoped_refptr<NoScaleContentLayer> child_no_scale =
CreateNoScaleDrawableContentLayer(&delegate);
SetLayerPropertiesForTesting(child_no_scale.get(),
child_scale_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(12.f, 12.f),
gfx::Size(10, 10),
true);
root->AddChild(parent);
parent->AddChild(child_scale);
parent->AddChild(child_empty);
parent->AddChild(child_no_scale);
scoped_ptr<FakeLayerTreeHost> host = FakeLayerTreeHost::Create();
host->SetRootLayer(root);
RenderSurfaceLayerList render_surface_layer_list;
float device_scale_factor = 2.5f;
float page_scale_factor = 1.f;
LayerTreeHostCommon::CalcDrawPropsMainInputsForTesting inputs(
root.get(), root->bounds(), &render_surface_layer_list);
inputs.device_scale_factor = device_scale_factor;
inputs.page_scale_factor = page_scale_factor;
inputs.page_scale_application_layer = root.get(),
LayerTreeHostCommon::CalculateDrawProperties(&inputs);
EXPECT_CONTENTS_SCALE_EQ(device_scale_factor * page_scale_factor, parent);
EXPECT_CONTENTS_SCALE_EQ(device_scale_factor * page_scale_factor,
child_scale);
EXPECT_CONTENTS_SCALE_EQ(device_scale_factor * page_scale_factor,
child_empty);
EXPECT_CONTENTS_SCALE_EQ(1, child_no_scale);
// Since the transform scale does not affect contents scale, it should affect
// the draw transform instead.
EXPECT_FLOAT_EQ(initial_parent_scale,
parent->draw_transform().matrix().getDouble(0, 0));
EXPECT_FLOAT_EQ(initial_parent_scale,
parent->draw_transform().matrix().getDouble(1, 1));
EXPECT_FLOAT_EQ(initial_parent_scale * initial_child_scale,
child_scale->draw_transform().matrix().getDouble(0, 0));
EXPECT_FLOAT_EQ(initial_parent_scale * initial_child_scale,
child_scale->draw_transform().matrix().getDouble(1, 1));
EXPECT_FLOAT_EQ(initial_parent_scale * initial_child_scale,
child_empty->draw_transform().matrix().getDouble(0, 0));
EXPECT_FLOAT_EQ(initial_parent_scale * initial_child_scale,
child_empty->draw_transform().matrix().getDouble(1, 1));
EXPECT_FLOAT_EQ(device_scale_factor * page_scale_factor *
initial_parent_scale * initial_child_scale,
child_no_scale->draw_transform().matrix().getDouble(0, 0));
EXPECT_FLOAT_EQ(device_scale_factor * page_scale_factor *
initial_parent_scale * initial_child_scale,
child_no_scale->draw_transform().matrix().getDouble(1, 1));
}
TEST_F(LayerTreeHostCommonTest, SmallContentsScale) {
MockContentLayerClient delegate;
gfx::Transform identity_matrix;
gfx::Transform parent_scale_matrix;
double initial_parent_scale = 1.75;
parent_scale_matrix.Scale(initial_parent_scale, initial_parent_scale);
gfx::Transform child_scale_matrix;
double initial_child_scale = 0.25;
child_scale_matrix.Scale(initial_child_scale, initial_child_scale);
scoped_refptr<Layer> root = Layer::Create();
root->SetBounds(gfx::Size(100, 100));
scoped_refptr<ContentLayer> parent = CreateDrawableContentLayer(&delegate);
SetLayerPropertiesForTesting(parent.get(),
parent_scale_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(100, 100),
true);
scoped_refptr<ContentLayer> child_scale =
CreateDrawableContentLayer(&delegate);
SetLayerPropertiesForTesting(child_scale.get(),
child_scale_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(2.f, 2.f),
gfx::Size(10, 10),
true);
root->AddChild(parent);
parent->AddChild(child_scale);
scoped_ptr<FakeLayerTreeHost> host = FakeLayerTreeHost::Create();
host->SetRootLayer(root);
float device_scale_factor = 2.5f;
float page_scale_factor = 0.01f;
{
RenderSurfaceLayerList render_surface_layer_list;
LayerTreeHostCommon::CalcDrawPropsMainInputsForTesting inputs(
root.get(), root->bounds(), &render_surface_layer_list);
inputs.device_scale_factor = device_scale_factor;
inputs.page_scale_factor = page_scale_factor;
inputs.page_scale_application_layer = root.get();
inputs.can_adjust_raster_scales = true;
LayerTreeHostCommon::CalculateDrawProperties(&inputs);
EXPECT_CONTENTS_SCALE_EQ(device_scale_factor * page_scale_factor *
initial_parent_scale,
parent);
// The child's scale is < 1, so we should not save and use that scale
// factor.
EXPECT_CONTENTS_SCALE_EQ(device_scale_factor * page_scale_factor * 1,
child_scale);
}
// When chilld's total scale becomes >= 1, we should save and use that scale
// factor.
child_scale_matrix.MakeIdentity();
double final_child_scale = 0.75;
child_scale_matrix.Scale(final_child_scale, final_child_scale);
child_scale->SetTransform(child_scale_matrix);
{
RenderSurfaceLayerList render_surface_layer_list;
LayerTreeHostCommon::CalcDrawPropsMainInputsForTesting inputs(
root.get(), root->bounds(), &render_surface_layer_list);
inputs.device_scale_factor = device_scale_factor;
inputs.page_scale_factor = page_scale_factor;
inputs.page_scale_application_layer = root.get();
inputs.can_adjust_raster_scales = true;
LayerTreeHostCommon::CalculateDrawProperties(&inputs);
EXPECT_CONTENTS_SCALE_EQ(device_scale_factor * page_scale_factor *
initial_parent_scale,
parent);
EXPECT_CONTENTS_SCALE_EQ(device_scale_factor * page_scale_factor *
initial_parent_scale * final_child_scale,
child_scale);
}
}
TEST_F(LayerTreeHostCommonTest, ContentsScaleForSurfaces) {
MockContentLayerClient delegate;
gfx::Transform identity_matrix;
gfx::Transform parent_scale_matrix;
double initial_parent_scale = 2.0;
parent_scale_matrix.Scale(initial_parent_scale, initial_parent_scale);
gfx::Transform child_scale_matrix;
double initial_child_scale = 3.0;
child_scale_matrix.Scale(initial_child_scale, initial_child_scale);
scoped_refptr<Layer> root = Layer::Create();
root->SetBounds(gfx::Size(100, 100));
scoped_refptr<ContentLayer> parent = CreateDrawableContentLayer(&delegate);
SetLayerPropertiesForTesting(parent.get(),
parent_scale_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(100, 100),
true);
scoped_refptr<ContentLayer> surface_scale =
CreateDrawableContentLayer(&delegate);
SetLayerPropertiesForTesting(surface_scale.get(),
child_scale_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(2.f, 2.f),
gfx::Size(10, 10),
true);
scoped_refptr<ContentLayer> surface_scale_child_scale =
CreateDrawableContentLayer(&delegate);
SetLayerPropertiesForTesting(surface_scale_child_scale.get(),
child_scale_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(10, 10),
true);
scoped_refptr<NoScaleContentLayer> surface_scale_child_no_scale =
CreateNoScaleDrawableContentLayer(&delegate);
SetLayerPropertiesForTesting(surface_scale_child_no_scale.get(),
child_scale_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(10, 10),
true);
scoped_refptr<NoScaleContentLayer> surface_no_scale =
CreateNoScaleDrawableContentLayer(&delegate);
SetLayerPropertiesForTesting(surface_no_scale.get(),
child_scale_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(12.f, 12.f),
gfx::Size(10, 10),
true);
scoped_refptr<ContentLayer> surface_no_scale_child_scale =
CreateDrawableContentLayer(&delegate);
SetLayerPropertiesForTesting(surface_no_scale_child_scale.get(),
child_scale_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(10, 10),
true);
scoped_refptr<NoScaleContentLayer> surface_no_scale_child_no_scale =
CreateNoScaleDrawableContentLayer(&delegate);
SetLayerPropertiesForTesting(surface_no_scale_child_no_scale.get(),
child_scale_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(10, 10),
true);
root->AddChild(parent);
parent->AddChild(surface_scale);
parent->AddChild(surface_no_scale);
surface_scale->SetForceRenderSurface(true);
surface_scale->AddChild(surface_scale_child_scale);
surface_scale->AddChild(surface_scale_child_no_scale);
surface_no_scale->SetForceRenderSurface(true);
surface_no_scale->AddChild(surface_no_scale_child_scale);
surface_no_scale->AddChild(surface_no_scale_child_no_scale);
scoped_ptr<FakeLayerTreeHost> host = FakeLayerTreeHost::Create();
host->SetRootLayer(root);
double device_scale_factor = 5;
double page_scale_factor = 7;
RenderSurfaceLayerList render_surface_layer_list;
LayerTreeHostCommon::CalcDrawPropsMainInputsForTesting inputs(
root.get(), root->bounds(), &render_surface_layer_list);
inputs.device_scale_factor = device_scale_factor;
inputs.page_scale_factor = page_scale_factor;
inputs.page_scale_application_layer = root.get();
inputs.can_adjust_raster_scales = true;
LayerTreeHostCommon::CalculateDrawProperties(&inputs);
EXPECT_CONTENTS_SCALE_EQ(
device_scale_factor * page_scale_factor * initial_parent_scale, parent);
EXPECT_CONTENTS_SCALE_EQ(device_scale_factor * page_scale_factor *
initial_parent_scale * initial_child_scale,
surface_scale);
EXPECT_CONTENTS_SCALE_EQ(1, surface_no_scale);
EXPECT_CONTENTS_SCALE_EQ(
device_scale_factor * page_scale_factor * initial_parent_scale *
initial_child_scale * initial_child_scale,
surface_scale_child_scale);
EXPECT_CONTENTS_SCALE_EQ(1, surface_scale_child_no_scale);
EXPECT_CONTENTS_SCALE_EQ(
device_scale_factor * page_scale_factor * initial_parent_scale *
initial_child_scale * initial_child_scale,
surface_no_scale_child_scale);
EXPECT_CONTENTS_SCALE_EQ(1, surface_no_scale_child_no_scale);
// The parent is scaled up and shouldn't need to scale during draw.
EXPECT_FLOAT_EQ(1.0, parent->draw_transform().matrix().getDouble(0, 0));
EXPECT_FLOAT_EQ(1.0, parent->draw_transform().matrix().getDouble(1, 1));
// RenderSurfaces should always be 1:1 with their target.
EXPECT_FLOAT_EQ(
1.0,
surface_scale->render_surface()->draw_transform().matrix().getDouble(0,
0));
EXPECT_FLOAT_EQ(
1.0,
surface_scale->render_surface()->draw_transform().matrix().getDouble(1,
1));
// The surface_scale can apply contents scale so the layer shouldn't need to
// scale during draw.
EXPECT_FLOAT_EQ(1.0,
surface_scale->draw_transform().matrix().getDouble(0, 0));
EXPECT_FLOAT_EQ(1.0,
surface_scale->draw_transform().matrix().getDouble(1, 1));
// The surface_scale_child_scale can apply contents scale so it shouldn't need
// to scale during draw.
EXPECT_FLOAT_EQ(
1.0,
surface_scale_child_scale->draw_transform().matrix().getDouble(0, 0));
EXPECT_FLOAT_EQ(
1.0,
surface_scale_child_scale->draw_transform().matrix().getDouble(1, 1));
// The surface_scale_child_no_scale can not apply contents scale, so it needs
// to be scaled during draw.
EXPECT_FLOAT_EQ(
device_scale_factor * page_scale_factor * initial_parent_scale *
initial_child_scale * initial_child_scale,
surface_scale_child_no_scale->draw_transform().matrix().getDouble(0, 0));
EXPECT_FLOAT_EQ(
device_scale_factor * page_scale_factor * initial_parent_scale *
initial_child_scale * initial_child_scale,
surface_scale_child_no_scale->draw_transform().matrix().getDouble(1, 1));
// RenderSurfaces should always be 1:1 with their target.
EXPECT_FLOAT_EQ(
1.0,
surface_no_scale->render_surface()->draw_transform().matrix().getDouble(
0, 0));
EXPECT_FLOAT_EQ(
1.0,
surface_no_scale->render_surface()->draw_transform().matrix().getDouble(
1, 1));
// The surface_no_scale layer can not apply contents scale, so it needs to be
// scaled during draw.
EXPECT_FLOAT_EQ(device_scale_factor * page_scale_factor *
initial_parent_scale * initial_child_scale,
surface_no_scale->draw_transform().matrix().getDouble(0, 0));
EXPECT_FLOAT_EQ(device_scale_factor * page_scale_factor *
initial_parent_scale * initial_child_scale,
surface_no_scale->draw_transform().matrix().getDouble(1, 1));
// The surface_scale_child_scale can apply contents scale so it shouldn't need
// to scale during draw.
EXPECT_FLOAT_EQ(
1.0,
surface_no_scale_child_scale->draw_transform().matrix().getDouble(0, 0));
EXPECT_FLOAT_EQ(
1.0,
surface_no_scale_child_scale->draw_transform().matrix().getDouble(1, 1));
// The surface_scale_child_no_scale can not apply contents scale, so it needs
// to be scaled during draw.
EXPECT_FLOAT_EQ(
device_scale_factor * page_scale_factor * initial_parent_scale *
initial_child_scale * initial_child_scale,
surface_no_scale_child_no_scale->draw_transform().matrix().getDouble(0,
0));
EXPECT_FLOAT_EQ(
device_scale_factor * page_scale_factor * initial_parent_scale *
initial_child_scale * initial_child_scale,
surface_no_scale_child_no_scale->draw_transform().matrix().getDouble(1,
1));
}
TEST_F(LayerTreeHostCommonTest,
ContentsScaleForSurfaces_LayerTransformsDontAffectContentsScale) {
MockContentLayerClient delegate;
gfx::Transform identity_matrix;
gfx::Transform parent_scale_matrix;
double initial_parent_scale = 2.0;
parent_scale_matrix.Scale(initial_parent_scale, initial_parent_scale);
gfx::Transform child_scale_matrix;
double initial_child_scale = 3.0;
child_scale_matrix.Scale(initial_child_scale, initial_child_scale);
scoped_refptr<Layer> root = Layer::Create();
root->SetBounds(gfx::Size(100, 100));
scoped_refptr<ContentLayer> parent = CreateDrawableContentLayer(&delegate);
SetLayerPropertiesForTesting(parent.get(),
parent_scale_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(100, 100),
true);
scoped_refptr<ContentLayer> surface_scale =
CreateDrawableContentLayer(&delegate);
SetLayerPropertiesForTesting(surface_scale.get(),
child_scale_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(2.f, 2.f),
gfx::Size(10, 10),
true);
scoped_refptr<ContentLayer> surface_scale_child_scale =
CreateDrawableContentLayer(&delegate);
SetLayerPropertiesForTesting(surface_scale_child_scale.get(),
child_scale_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(10, 10),
true);
scoped_refptr<NoScaleContentLayer> surface_scale_child_no_scale =
CreateNoScaleDrawableContentLayer(&delegate);
SetLayerPropertiesForTesting(surface_scale_child_no_scale.get(),
child_scale_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(10, 10),
true);
scoped_refptr<NoScaleContentLayer> surface_no_scale =
CreateNoScaleDrawableContentLayer(&delegate);
SetLayerPropertiesForTesting(surface_no_scale.get(),
child_scale_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(12.f, 12.f),
gfx::Size(10, 10),
true);
scoped_refptr<ContentLayer> surface_no_scale_child_scale =
CreateDrawableContentLayer(&delegate);
SetLayerPropertiesForTesting(surface_no_scale_child_scale.get(),
child_scale_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(10, 10),
true);
scoped_refptr<NoScaleContentLayer> surface_no_scale_child_no_scale =
CreateNoScaleDrawableContentLayer(&delegate);
SetLayerPropertiesForTesting(surface_no_scale_child_no_scale.get(),
child_scale_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(10, 10),
true);
root->AddChild(parent);
parent->AddChild(surface_scale);
parent->AddChild(surface_no_scale);
surface_scale->SetForceRenderSurface(true);
surface_scale->AddChild(surface_scale_child_scale);
surface_scale->AddChild(surface_scale_child_no_scale);
surface_no_scale->SetForceRenderSurface(true);
surface_no_scale->AddChild(surface_no_scale_child_scale);
surface_no_scale->AddChild(surface_no_scale_child_no_scale);
scoped_ptr<FakeLayerTreeHost> host = FakeLayerTreeHost::Create();
host->SetRootLayer(root);
RenderSurfaceLayerList render_surface_layer_list;
double device_scale_factor = 5.0;
double page_scale_factor = 7.0;
LayerTreeHostCommon::CalcDrawPropsMainInputsForTesting inputs(
root.get(), root->bounds(), &render_surface_layer_list);
inputs.device_scale_factor = device_scale_factor;
inputs.page_scale_factor = page_scale_factor;
inputs.page_scale_application_layer = root.get();
LayerTreeHostCommon::CalculateDrawProperties(&inputs);
EXPECT_CONTENTS_SCALE_EQ(device_scale_factor * page_scale_factor,
parent);
EXPECT_CONTENTS_SCALE_EQ(device_scale_factor * page_scale_factor,
surface_scale);
EXPECT_CONTENTS_SCALE_EQ(1.f, surface_no_scale);
EXPECT_CONTENTS_SCALE_EQ(device_scale_factor * page_scale_factor,
surface_scale_child_scale);
EXPECT_CONTENTS_SCALE_EQ(1.f, surface_scale_child_no_scale);
EXPECT_CONTENTS_SCALE_EQ(device_scale_factor * page_scale_factor,
surface_no_scale_child_scale);
EXPECT_CONTENTS_SCALE_EQ(1.f, surface_no_scale_child_no_scale);
// The parent is scaled up during draw, since its contents are not scaled by
// the transform hierarchy.
EXPECT_FLOAT_EQ(initial_parent_scale,
parent->draw_transform().matrix().getDouble(0, 0));
EXPECT_FLOAT_EQ(initial_parent_scale,
parent->draw_transform().matrix().getDouble(1, 1));
// The child surface is scaled up during draw since its subtree is not scaled
// by the transform hierarchy.
EXPECT_FLOAT_EQ(
initial_parent_scale * initial_child_scale,
surface_scale->render_surface()->draw_transform().matrix().getDouble(0,
0));
EXPECT_FLOAT_EQ(
initial_parent_scale * initial_child_scale,
surface_scale->render_surface()->draw_transform().matrix().getDouble(1,
1));
// The surface_scale's RenderSurface is scaled during draw, so the layer does
// not need to be scaled when drawing into its surface.
EXPECT_FLOAT_EQ(1.0,
surface_scale->draw_transform().matrix().getDouble(0, 0));
EXPECT_FLOAT_EQ(1.0,
surface_scale->draw_transform().matrix().getDouble(1, 1));
// The surface_scale_child_scale is scaled when drawing into its surface,
// since its content bounds are not scaled by the transform hierarchy.
EXPECT_FLOAT_EQ(
initial_child_scale,
surface_scale_child_scale->draw_transform().matrix().getDouble(0, 0));
EXPECT_FLOAT_EQ(
initial_child_scale,
surface_scale_child_scale->draw_transform().matrix().getDouble(1, 1));
// The surface_scale_child_no_scale has a fixed contents scale of 1, so it
// needs to be scaled by the device and page scale factors, along with the
// transform hierarchy.
EXPECT_FLOAT_EQ(
device_scale_factor * page_scale_factor * initial_child_scale,
surface_scale_child_no_scale->draw_transform().matrix().getDouble(0, 0));
EXPECT_FLOAT_EQ(
device_scale_factor * page_scale_factor * initial_child_scale,
surface_scale_child_no_scale->draw_transform().matrix().getDouble(1, 1));
// The child surface is scaled up during draw since its subtree is not scaled
// by the transform hierarchy.
EXPECT_FLOAT_EQ(
initial_parent_scale * initial_child_scale,
surface_no_scale->render_surface()->draw_transform().matrix().getDouble(
0, 0));
EXPECT_FLOAT_EQ(
initial_parent_scale * initial_child_scale,
surface_no_scale->render_surface()->draw_transform().matrix().getDouble(
1, 1));
// The surface_no_scale layer has a fixed contents scale of 1, so it needs to
// be scaled by the device and page scale factors. Its surface is already
// scaled by the transform hierarchy so those don't need to scale the layer's
// drawing.
EXPECT_FLOAT_EQ(device_scale_factor * page_scale_factor,
surface_no_scale->draw_transform().matrix().getDouble(0, 0));
EXPECT_FLOAT_EQ(device_scale_factor * page_scale_factor,
surface_no_scale->draw_transform().matrix().getDouble(1, 1));
// The surface_no_scale_child_scale has its contents scaled by the page and
// device scale factors, but needs to be scaled by the transform hierarchy
// when drawing.
EXPECT_FLOAT_EQ(
initial_child_scale,
surface_no_scale_child_scale->draw_transform().matrix().getDouble(0, 0));
EXPECT_FLOAT_EQ(
initial_child_scale,
surface_no_scale_child_scale->draw_transform().matrix().getDouble(1, 1));
// The surface_no_scale_child_no_scale has a fixed contents scale of 1, so it
// needs to be scaled by the device and page scale factors. It also needs to
// be scaled by any transform heirarchy below its target surface.
EXPECT_FLOAT_EQ(
device_scale_factor * page_scale_factor * initial_child_scale,
surface_no_scale_child_no_scale->draw_transform().matrix().getDouble(0,
0));
EXPECT_FLOAT_EQ(
device_scale_factor * page_scale_factor * initial_child_scale,
surface_no_scale_child_no_scale->draw_transform().matrix().getDouble(1,
1));
}
TEST_F(LayerTreeHostCommonTest, ContentsScaleForAnimatingLayer) {
MockContentLayerClient delegate;
gfx::Transform identity_matrix;
gfx::Transform parent_scale_matrix;
double initial_parent_scale = 1.75;
parent_scale_matrix.Scale(initial_parent_scale, initial_parent_scale);
gfx::Transform child_scale_matrix;
double initial_child_scale = 1.25;
child_scale_matrix.Scale(initial_child_scale, initial_child_scale);
scoped_refptr<Layer> root = Layer::Create();
root->SetBounds(gfx::Size(100, 100));
scoped_refptr<ContentLayer> parent = CreateDrawableContentLayer(&delegate);
SetLayerPropertiesForTesting(parent.get(),
parent_scale_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(100, 100),
true);
scoped_refptr<ContentLayer> child_scale =
CreateDrawableContentLayer(&delegate);
SetLayerPropertiesForTesting(child_scale.get(),
child_scale_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(2.f, 2.f),
gfx::Size(10, 10),
true);
root->AddChild(parent);
parent->AddChild(child_scale);
scoped_ptr<FakeLayerTreeHost> host = FakeLayerTreeHost::Create();
host->SetRootLayer(root);
// Now put an animating transform on child.
int animation_id = AddAnimatedTransformToController(
child_scale->layer_animation_controller(), 10.0, 30, 0);
{
RenderSurfaceLayerList render_surface_layer_list;
LayerTreeHostCommon::CalcDrawPropsMainInputsForTesting inputs(
root.get(), root->bounds(), &render_surface_layer_list);
inputs.can_adjust_raster_scales = true;
LayerTreeHostCommon::CalculateDrawProperties(&inputs);
EXPECT_CONTENTS_SCALE_EQ(initial_parent_scale, parent);
// The layers with animating transforms should not compute a contents scale
// other than 1 until they finish animating.
EXPECT_CONTENTS_SCALE_EQ(1, child_scale);
}
// Remove the animation, now it can save a raster scale.
child_scale->layer_animation_controller()->RemoveAnimation(animation_id);
{
RenderSurfaceLayerList render_surface_layer_list;
LayerTreeHostCommon::CalcDrawPropsMainInputsForTesting inputs(
root.get(), root->bounds(), &render_surface_layer_list);
inputs.can_adjust_raster_scales = true;
LayerTreeHostCommon::CalculateDrawProperties(&inputs);
EXPECT_CONTENTS_SCALE_EQ(initial_parent_scale, parent);
// The layers with animating transforms should not compute a contents scale
// other than 1 until they finish animating.
EXPECT_CONTENTS_SCALE_EQ(initial_parent_scale * initial_child_scale,
child_scale);
}
}
TEST_F(LayerTreeHostCommonTest, RenderSurfaceTransformsInHighDPI) {
MockContentLayerClient delegate;
gfx::Transform identity_matrix;
scoped_refptr<ContentLayer> parent = CreateDrawableContentLayer(&delegate);
SetLayerPropertiesForTesting(parent.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(30, 30),
true);
scoped_refptr<ContentLayer> child = CreateDrawableContentLayer(&delegate);
SetLayerPropertiesForTesting(child.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(2.f, 2.f),
gfx::Size(10, 10),
true);
gfx::Transform replica_transform;
replica_transform.Scale(1.0, -1.0);
scoped_refptr<ContentLayer> replica = CreateDrawableContentLayer(&delegate);
SetLayerPropertiesForTesting(replica.get(),
replica_transform,
identity_matrix,
gfx::PointF(),
gfx::PointF(2.f, 2.f),
gfx::Size(10, 10),
true);
// This layer should end up in the same surface as child, with the same draw
// and screen space transforms.
scoped_refptr<ContentLayer> duplicate_child_non_owner =
CreateDrawableContentLayer(&delegate);
SetLayerPropertiesForTesting(duplicate_child_non_owner.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(10, 10),
true);
parent->AddChild(child);
child->AddChild(duplicate_child_non_owner);
child->SetReplicaLayer(replica.get());
scoped_ptr<FakeLayerTreeHost> host = FakeLayerTreeHost::Create();
host->SetRootLayer(parent);
RenderSurfaceLayerList render_surface_layer_list;
float device_scale_factor = 1.5f;
LayerTreeHostCommon::CalcDrawPropsMainInputsForTesting inputs(
parent.get(), parent->bounds(), &render_surface_layer_list);
inputs.device_scale_factor = device_scale_factor;
inputs.can_adjust_raster_scales = true;
LayerTreeHostCommon::CalculateDrawProperties(&inputs);
// We should have two render surfaces. The root's render surface and child's
// render surface (it needs one because it has a replica layer).
EXPECT_EQ(2u, render_surface_layer_list.size());
gfx::Transform expected_parent_transform;
EXPECT_TRANSFORMATION_MATRIX_EQ(expected_parent_transform,
parent->screen_space_transform());
EXPECT_TRANSFORMATION_MATRIX_EQ(expected_parent_transform,
parent->draw_transform());
gfx::Transform expected_draw_transform;
EXPECT_TRANSFORMATION_MATRIX_EQ(expected_draw_transform,
child->draw_transform());
gfx::Transform expected_screen_space_transform;
expected_screen_space_transform.Translate(
device_scale_factor * child->position().x(),
device_scale_factor * child->position().y());
EXPECT_TRANSFORMATION_MATRIX_EQ(expected_screen_space_transform,
child->screen_space_transform());
gfx::Transform expected_duplicate_child_draw_transform =
child->draw_transform();
EXPECT_TRANSFORMATION_MATRIX_EQ(child->draw_transform(),
duplicate_child_non_owner->draw_transform());
EXPECT_TRANSFORMATION_MATRIX_EQ(
child->screen_space_transform(),
duplicate_child_non_owner->screen_space_transform());
EXPECT_RECT_EQ(child->drawable_content_rect(),
duplicate_child_non_owner->drawable_content_rect());
EXPECT_EQ(child->content_bounds(),
duplicate_child_non_owner->content_bounds());
gfx::Transform expected_render_surface_draw_transform;
expected_render_surface_draw_transform.Translate(
device_scale_factor * child->position().x(),
device_scale_factor * child->position().y());
EXPECT_TRANSFORMATION_MATRIX_EQ(expected_render_surface_draw_transform,
child->render_surface()->draw_transform());
gfx::Transform expected_surface_draw_transform;
expected_surface_draw_transform.Translate(device_scale_factor * 2.f,
device_scale_factor * 2.f);
EXPECT_TRANSFORMATION_MATRIX_EQ(expected_surface_draw_transform,
child->render_surface()->draw_transform());
gfx::Transform expected_surface_screen_space_transform;
expected_surface_screen_space_transform.Translate(device_scale_factor * 2.f,
device_scale_factor * 2.f);
EXPECT_TRANSFORMATION_MATRIX_EQ(
expected_surface_screen_space_transform,
child->render_surface()->screen_space_transform());
gfx::Transform expected_replica_draw_transform;
expected_replica_draw_transform.matrix().setDouble(1, 1, -1.0);
expected_replica_draw_transform.matrix().setDouble(0, 3, 6.0);
expected_replica_draw_transform.matrix().setDouble(1, 3, 6.0);
EXPECT_TRANSFORMATION_MATRIX_EQ(
expected_replica_draw_transform,
child->render_surface()->replica_draw_transform());
gfx::Transform expected_replica_screen_space_transform;
expected_replica_screen_space_transform.matrix().setDouble(1, 1, -1.0);
expected_replica_screen_space_transform.matrix().setDouble(0, 3, 6.0);
expected_replica_screen_space_transform.matrix().setDouble(1, 3, 6.0);
EXPECT_TRANSFORMATION_MATRIX_EQ(
expected_replica_screen_space_transform,
child->render_surface()->replica_screen_space_transform());
EXPECT_TRANSFORMATION_MATRIX_EQ(
expected_replica_screen_space_transform,
child->render_surface()->replica_screen_space_transform());
}
TEST_F(LayerTreeHostCommonTest,
RenderSurfaceTransformsInHighDPIAccurateScaleZeroPosition) {
MockContentLayerClient delegate;
gfx::Transform identity_matrix;
scoped_refptr<ContentLayer> parent = CreateDrawableContentLayer(&delegate);
SetLayerPropertiesForTesting(parent.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(33, 31),
true);
scoped_refptr<ContentLayer> child = CreateDrawableContentLayer(&delegate);
SetLayerPropertiesForTesting(child.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(13, 11),
true);
gfx::Transform replica_transform;
replica_transform.Scale(1.0, -1.0);
scoped_refptr<ContentLayer> replica = CreateDrawableContentLayer(&delegate);
SetLayerPropertiesForTesting(replica.get(),
replica_transform,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(13, 11),
true);
// This layer should end up in the same surface as child, with the same draw
// and screen space transforms.
scoped_refptr<ContentLayer> duplicate_child_non_owner =
CreateDrawableContentLayer(&delegate);
SetLayerPropertiesForTesting(duplicate_child_non_owner.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(13, 11),
true);
parent->AddChild(child);
child->AddChild(duplicate_child_non_owner);
child->SetReplicaLayer(replica.get());
scoped_ptr<FakeLayerTreeHost> host = FakeLayerTreeHost::Create();
host->SetRootLayer(parent);
float device_scale_factor = 1.7f;
RenderSurfaceLayerList render_surface_layer_list;
LayerTreeHostCommon::CalcDrawPropsMainInputsForTesting inputs(
parent.get(), parent->bounds(), &render_surface_layer_list);
inputs.device_scale_factor = device_scale_factor;
inputs.can_adjust_raster_scales = true;
LayerTreeHostCommon::CalculateDrawProperties(&inputs);
// We should have two render surfaces. The root's render surface and child's
// render surface (it needs one because it has a replica layer).
EXPECT_EQ(2u, render_surface_layer_list.size());
gfx::Transform identity_transform;
EXPECT_TRANSFORMATION_MATRIX_EQ(identity_transform,
parent->screen_space_transform());
EXPECT_TRANSFORMATION_MATRIX_EQ(identity_transform, parent->draw_transform());
EXPECT_TRANSFORMATION_MATRIX_EQ(identity_transform, child->draw_transform());
EXPECT_TRANSFORMATION_MATRIX_EQ(identity_transform,
child->screen_space_transform());
EXPECT_TRANSFORMATION_MATRIX_EQ(identity_transform,
duplicate_child_non_owner->draw_transform());
EXPECT_TRANSFORMATION_MATRIX_EQ(
identity_transform, duplicate_child_non_owner->screen_space_transform());
EXPECT_RECT_EQ(child->drawable_content_rect(),
duplicate_child_non_owner->drawable_content_rect());
EXPECT_EQ(child->content_bounds(),
duplicate_child_non_owner->content_bounds());
EXPECT_TRANSFORMATION_MATRIX_EQ(identity_transform,
child->render_surface()->draw_transform());
EXPECT_TRANSFORMATION_MATRIX_EQ(identity_transform,
child->render_surface()->draw_transform());
EXPECT_TRANSFORMATION_MATRIX_EQ(
identity_transform, child->render_surface()->screen_space_transform());
gfx::Transform expected_replica_draw_transform;
expected_replica_draw_transform.matrix().setDouble(1, 1, -1.0);
EXPECT_TRANSFORMATION_MATRIX_EQ(
expected_replica_draw_transform,
child->render_surface()->replica_draw_transform());
gfx::Transform expected_replica_screen_space_transform;
expected_replica_screen_space_transform.matrix().setDouble(1, 1, -1.0);
EXPECT_TRANSFORMATION_MATRIX_EQ(
expected_replica_screen_space_transform,
child->render_surface()->replica_screen_space_transform());
}
TEST_F(LayerTreeHostCommonTest, SubtreeSearch) {
scoped_refptr<Layer> root = Layer::Create();
scoped_refptr<Layer> child = Layer::Create();
scoped_refptr<Layer> grand_child = Layer::Create();
scoped_refptr<Layer> mask_layer = Layer::Create();
scoped_refptr<Layer> replica_layer = Layer::Create();
grand_child->SetReplicaLayer(replica_layer.get());
child->AddChild(grand_child.get());
child->SetMaskLayer(mask_layer.get());
root->AddChild(child.get());
scoped_ptr<FakeLayerTreeHost> host = FakeLayerTreeHost::Create();
host->SetRootLayer(root);
int nonexistent_id = -1;
EXPECT_EQ(root,
LayerTreeHostCommon::FindLayerInSubtree(root.get(), root->id()));
EXPECT_EQ(child,
LayerTreeHostCommon::FindLayerInSubtree(root.get(), child->id()));
EXPECT_EQ(
grand_child,
LayerTreeHostCommon::FindLayerInSubtree(root.get(), grand_child->id()));
EXPECT_EQ(
mask_layer,
LayerTreeHostCommon::FindLayerInSubtree(root.get(), mask_layer->id()));
EXPECT_EQ(
replica_layer,
LayerTreeHostCommon::FindLayerInSubtree(root.get(), replica_layer->id()));
EXPECT_EQ(
0, LayerTreeHostCommon::FindLayerInSubtree(root.get(), nonexistent_id));
}
TEST_F(LayerTreeHostCommonTest, TransparentChildRenderSurfaceCreation) {
scoped_refptr<Layer> root = Layer::Create();
scoped_refptr<Layer> child = Layer::Create();
scoped_refptr<LayerWithForcedDrawsContent> grand_child =
make_scoped_refptr(new LayerWithForcedDrawsContent());
const gfx::Transform identity_matrix;
SetLayerPropertiesForTesting(root.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(100, 100),
false);
SetLayerPropertiesForTesting(child.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(10, 10),
false);
SetLayerPropertiesForTesting(grand_child.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(10, 10),
false);
root->AddChild(child);
child->AddChild(grand_child);
child->SetOpacity(0.5f);
scoped_ptr<FakeLayerTreeHost> host = FakeLayerTreeHost::Create();
host->SetRootLayer(root);
ExecuteCalculateDrawProperties(root.get());
EXPECT_FALSE(child->render_surface());
}
TEST_F(LayerTreeHostCommonTest, OpacityAnimatingOnPendingTree) {
FakeImplProxy proxy;
FakeLayerTreeHostImpl host_impl(&proxy);
host_impl.CreatePendingTree();
scoped_ptr<LayerImpl> root = LayerImpl::Create(host_impl.pending_tree(), 1);
const gfx::Transform identity_matrix;
SetLayerPropertiesForTesting(root.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(100, 100),
false);
root->SetDrawsContent(true);
scoped_ptr<LayerImpl> child = LayerImpl::Create(host_impl.pending_tree(), 2);
SetLayerPropertiesForTesting(child.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(50, 50),
false);
child->SetDrawsContent(true);
child->SetOpacity(0.0f);
// Add opacity animation.
AddOpacityTransitionToController(
child->layer_animation_controller(), 10.0, 0.0f, 1.0f, false);
root->AddChild(child.Pass());
LayerImplList render_surface_layer_list;
LayerTreeHostCommon::CalcDrawPropsImplInputsForTesting inputs(
root.get(), root->bounds(), &render_surface_layer_list);
inputs.can_adjust_raster_scales = true;
LayerTreeHostCommon::CalculateDrawProperties(&inputs);
// We should have one render surface and two layers. The child
// layer should be included even though it is transparent.
ASSERT_EQ(1u, render_surface_layer_list.size());
ASSERT_EQ(2u, root->render_surface()->layer_list().size());
}
typedef std::tr1::tuple<bool, bool> LCDTextTestParam;
class LCDTextTest
: public LayerTreeHostCommonTestBase,
public testing::TestWithParam<LCDTextTestParam> {
protected:
virtual void SetUp() {
can_use_lcd_text_ = std::tr1::get<0>(GetParam());
root_ = Layer::Create();
child_ = Layer::Create();
grand_child_ = Layer::Create();
child_->AddChild(grand_child_.get());
root_->AddChild(child_.get());
gfx::Transform identity_matrix;
SetLayerPropertiesForTesting(root_.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(1, 1),
false);
SetLayerPropertiesForTesting(child_.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(1, 1),
false);
SetLayerPropertiesForTesting(grand_child_.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(1, 1),
false);
child_->SetForceRenderSurface(std::tr1::get<1>(GetParam()));
host_ = FakeLayerTreeHost::Create();
host_->SetRootLayer(root_);
}
bool can_use_lcd_text_;
scoped_ptr<FakeLayerTreeHost> host_;
scoped_refptr<Layer> root_;
scoped_refptr<Layer> child_;
scoped_refptr<Layer> grand_child_;
};
TEST_P(LCDTextTest, CanUseLCDText) {
// Case 1: Identity transform.
gfx::Transform identity_matrix;
ExecuteCalculateDrawProperties(
root_.get(), 1.f, 1.f, NULL, can_use_lcd_text_);
EXPECT_EQ(can_use_lcd_text_, root_->can_use_lcd_text());
EXPECT_EQ(can_use_lcd_text_, child_->can_use_lcd_text());
EXPECT_EQ(can_use_lcd_text_, grand_child_->can_use_lcd_text());
// Case 2: Integral translation.
gfx::Transform integral_translation;
integral_translation.Translate(1.0, 2.0);
child_->SetTransform(integral_translation);
ExecuteCalculateDrawProperties(
root_.get(), 1.f, 1.f, NULL, can_use_lcd_text_);
EXPECT_EQ(can_use_lcd_text_, root_->can_use_lcd_text());
EXPECT_EQ(can_use_lcd_text_, child_->can_use_lcd_text());
EXPECT_EQ(can_use_lcd_text_, grand_child_->can_use_lcd_text());
// Case 3: Non-integral translation.
gfx::Transform non_integral_translation;
non_integral_translation.Translate(1.5, 2.5);
child_->SetTransform(non_integral_translation);
ExecuteCalculateDrawProperties(
root_.get(), 1.f, 1.f, NULL, can_use_lcd_text_);
EXPECT_EQ(can_use_lcd_text_, root_->can_use_lcd_text());
EXPECT_FALSE(child_->can_use_lcd_text());
EXPECT_FALSE(grand_child_->can_use_lcd_text());
// Case 4: Rotation.
gfx::Transform rotation;
rotation.Rotate(10.0);
child_->SetTransform(rotation);
ExecuteCalculateDrawProperties(
root_.get(), 1.f, 1.f, NULL, can_use_lcd_text_);
EXPECT_EQ(can_use_lcd_text_, root_->can_use_lcd_text());
EXPECT_FALSE(child_->can_use_lcd_text());
EXPECT_FALSE(grand_child_->can_use_lcd_text());
// Case 5: Scale.
gfx::Transform scale;
scale.Scale(2.0, 2.0);
child_->SetTransform(scale);
ExecuteCalculateDrawProperties(
root_.get(), 1.f, 1.f, NULL, can_use_lcd_text_);
EXPECT_EQ(can_use_lcd_text_, root_->can_use_lcd_text());
EXPECT_FALSE(child_->can_use_lcd_text());
EXPECT_FALSE(grand_child_->can_use_lcd_text());
// Case 6: Skew.
gfx::Transform skew;
skew.SkewX(10.0);
child_->SetTransform(skew);
ExecuteCalculateDrawProperties(
root_.get(), 1.f, 1.f, NULL, can_use_lcd_text_);
EXPECT_EQ(can_use_lcd_text_, root_->can_use_lcd_text());
EXPECT_FALSE(child_->can_use_lcd_text());
EXPECT_FALSE(grand_child_->can_use_lcd_text());
// Case 7: Translucent.
child_->SetTransform(identity_matrix);
child_->SetOpacity(0.5f);
ExecuteCalculateDrawProperties(
root_.get(), 1.f, 1.f, NULL, can_use_lcd_text_);
EXPECT_EQ(can_use_lcd_text_, root_->can_use_lcd_text());
EXPECT_FALSE(child_->can_use_lcd_text());
EXPECT_FALSE(grand_child_->can_use_lcd_text());
// Case 8: Sanity check: restore transform and opacity.
child_->SetTransform(identity_matrix);
child_->SetOpacity(1.f);
ExecuteCalculateDrawProperties(
root_.get(), 1.f, 1.f, NULL, can_use_lcd_text_);
EXPECT_EQ(can_use_lcd_text_, root_->can_use_lcd_text());
EXPECT_EQ(can_use_lcd_text_, child_->can_use_lcd_text());
EXPECT_EQ(can_use_lcd_text_, grand_child_->can_use_lcd_text());
}
TEST_P(LCDTextTest, CanUseLCDTextWithAnimation) {
// Sanity check: Make sure can_use_lcd_text_ is set on each node.
ExecuteCalculateDrawProperties(
root_.get(), 1.f, 1.f, NULL, can_use_lcd_text_);
EXPECT_EQ(can_use_lcd_text_, root_->can_use_lcd_text());
EXPECT_EQ(can_use_lcd_text_, child_->can_use_lcd_text());
EXPECT_EQ(can_use_lcd_text_, grand_child_->can_use_lcd_text());
// Add opacity animation.
child_->SetOpacity(0.9f);
AddOpacityTransitionToController(
child_->layer_animation_controller(), 10.0, 0.9f, 0.1f, false);
ExecuteCalculateDrawProperties(
root_.get(), 1.f, 1.f, NULL, can_use_lcd_text_);
// Text AA should not be adjusted while animation is active.
// Make sure LCD text AA setting remains unchanged.
EXPECT_EQ(can_use_lcd_text_, root_->can_use_lcd_text());
EXPECT_EQ(can_use_lcd_text_, child_->can_use_lcd_text());
EXPECT_EQ(can_use_lcd_text_, grand_child_->can_use_lcd_text());
}
INSTANTIATE_TEST_CASE_P(LayerTreeHostCommonTest,
LCDTextTest,
testing::Combine(testing::Bool(), testing::Bool()));
TEST_F(LayerTreeHostCommonTest, SubtreeHidden_SingleLayer) {
FakeImplProxy proxy;
FakeLayerTreeHostImpl host_impl(&proxy);
host_impl.CreatePendingTree();
const gfx::Transform identity_matrix;
scoped_refptr<Layer> root = Layer::Create();
SetLayerPropertiesForTesting(root.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(50, 50),
false);
root->SetIsDrawable(true);
scoped_refptr<Layer> child = Layer::Create();
SetLayerPropertiesForTesting(child.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(40, 40),
false);
child->SetIsDrawable(true);
scoped_refptr<Layer> grand_child = Layer::Create();
SetLayerPropertiesForTesting(grand_child.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(30, 30),
false);
grand_child->SetIsDrawable(true);
grand_child->SetHideLayerAndSubtree(true);
child->AddChild(grand_child);
root->AddChild(child);
scoped_ptr<FakeLayerTreeHost> host = FakeLayerTreeHost::Create();
host->SetRootLayer(root);
RenderSurfaceLayerList render_surface_layer_list;
LayerTreeHostCommon::CalcDrawPropsMainInputsForTesting inputs(
root.get(), root->bounds(), &render_surface_layer_list);
inputs.can_adjust_raster_scales = true;
LayerTreeHostCommon::CalculateDrawProperties(&inputs);
// We should have one render surface and two layers. The grand child has
// hidden itself.
ASSERT_EQ(1u, render_surface_layer_list.size());
ASSERT_EQ(2u, root->render_surface()->layer_list().size());
EXPECT_EQ(root->id(), root->render_surface()->layer_list().at(0)->id());
EXPECT_EQ(child->id(), root->render_surface()->layer_list().at(1)->id());
}
TEST_F(LayerTreeHostCommonTest, SubtreeHidden_SingleLayerImpl) {
FakeImplProxy proxy;
FakeLayerTreeHostImpl host_impl(&proxy);
host_impl.CreatePendingTree();
const gfx::Transform identity_matrix;
scoped_ptr<LayerImpl> root = LayerImpl::Create(host_impl.pending_tree(), 1);
SetLayerPropertiesForTesting(root.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(50, 50),
false);
root->SetDrawsContent(true);
scoped_ptr<LayerImpl> child = LayerImpl::Create(host_impl.pending_tree(), 2);
SetLayerPropertiesForTesting(child.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(40, 40),
false);
child->SetDrawsContent(true);
scoped_ptr<LayerImpl> grand_child =
LayerImpl::Create(host_impl.pending_tree(), 3);
SetLayerPropertiesForTesting(grand_child.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(30, 30),
false);
grand_child->SetDrawsContent(true);
grand_child->SetHideLayerAndSubtree(true);
child->AddChild(grand_child.Pass());
root->AddChild(child.Pass());
LayerImplList render_surface_layer_list;
LayerTreeHostCommon::CalcDrawPropsImplInputsForTesting inputs(
root.get(), root->bounds(), &render_surface_layer_list);
inputs.can_adjust_raster_scales = true;
LayerTreeHostCommon::CalculateDrawProperties(&inputs);
// We should have one render surface and two layers. The grand child has
// hidden itself.
ASSERT_EQ(1u, render_surface_layer_list.size());
ASSERT_EQ(2u, root->render_surface()->layer_list().size());
EXPECT_EQ(1, root->render_surface()->layer_list().at(0)->id());
EXPECT_EQ(2, root->render_surface()->layer_list().at(1)->id());
}
TEST_F(LayerTreeHostCommonTest, SubtreeHidden_TwoLayers) {
FakeImplProxy proxy;
FakeLayerTreeHostImpl host_impl(&proxy);
host_impl.CreatePendingTree();
const gfx::Transform identity_matrix;
scoped_refptr<Layer> root = Layer::Create();
SetLayerPropertiesForTesting(root.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(50, 50),
false);
root->SetIsDrawable(true);
scoped_refptr<Layer> child = Layer::Create();
SetLayerPropertiesForTesting(child.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(40, 40),
false);
child->SetIsDrawable(true);
child->SetHideLayerAndSubtree(true);
scoped_refptr<Layer> grand_child = Layer::Create();
SetLayerPropertiesForTesting(grand_child.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(30, 30),
false);
grand_child->SetIsDrawable(true);
child->AddChild(grand_child);
root->AddChild(child);
scoped_ptr<FakeLayerTreeHost> host = FakeLayerTreeHost::Create();
host->SetRootLayer(root);
RenderSurfaceLayerList render_surface_layer_list;
LayerTreeHostCommon::CalcDrawPropsMainInputsForTesting inputs(
root.get(), root->bounds(), &render_surface_layer_list);
inputs.can_adjust_raster_scales = true;
LayerTreeHostCommon::CalculateDrawProperties(&inputs);
// We should have one render surface and one layers. The child has
// hidden itself and the grand child.
ASSERT_EQ(1u, render_surface_layer_list.size());
ASSERT_EQ(1u, root->render_surface()->layer_list().size());
EXPECT_EQ(root->id(), root->render_surface()->layer_list().at(0)->id());
}
TEST_F(LayerTreeHostCommonTest, SubtreeHidden_TwoLayersImpl) {
FakeImplProxy proxy;
FakeLayerTreeHostImpl host_impl(&proxy);
host_impl.CreatePendingTree();
const gfx::Transform identity_matrix;
scoped_ptr<LayerImpl> root = LayerImpl::Create(host_impl.pending_tree(), 1);
SetLayerPropertiesForTesting(root.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(50, 50),
false);
root->SetDrawsContent(true);
scoped_ptr<LayerImpl> child = LayerImpl::Create(host_impl.pending_tree(), 2);
SetLayerPropertiesForTesting(child.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(40, 40),
false);
child->SetDrawsContent(true);
child->SetHideLayerAndSubtree(true);
scoped_ptr<LayerImpl> grand_child =
LayerImpl::Create(host_impl.pending_tree(), 3);
SetLayerPropertiesForTesting(grand_child.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(30, 30),
false);
grand_child->SetDrawsContent(true);
child->AddChild(grand_child.Pass());
root->AddChild(child.Pass());
LayerImplList render_surface_layer_list;
LayerTreeHostCommon::CalcDrawPropsImplInputsForTesting inputs(
root.get(), root->bounds(), &render_surface_layer_list);
inputs.can_adjust_raster_scales = true;
LayerTreeHostCommon::CalculateDrawProperties(&inputs);
// We should have one render surface and one layers. The child has
// hidden itself and the grand child.
ASSERT_EQ(1u, render_surface_layer_list.size());
ASSERT_EQ(1u, root->render_surface()->layer_list().size());
EXPECT_EQ(1, root->render_surface()->layer_list().at(0)->id());
}
void EmptyCopyOutputCallback(scoped_ptr<CopyOutputResult> result) {}
TEST_F(LayerTreeHostCommonTest, SubtreeHiddenWithCopyRequest) {
FakeImplProxy proxy;
FakeLayerTreeHostImpl host_impl(&proxy);
host_impl.CreatePendingTree();
const gfx::Transform identity_matrix;
scoped_refptr<Layer> root = Layer::Create();
SetLayerPropertiesForTesting(root.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(50, 50),
false);
root->SetIsDrawable(true);
scoped_refptr<Layer> copy_grand_parent = Layer::Create();
SetLayerPropertiesForTesting(copy_grand_parent.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(40, 40),
false);
copy_grand_parent->SetIsDrawable(true);
scoped_refptr<Layer> copy_parent = Layer::Create();
SetLayerPropertiesForTesting(copy_parent.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(30, 30),
false);
copy_parent->SetIsDrawable(true);
copy_parent->SetForceRenderSurface(true);
scoped_refptr<Layer> copy_layer = Layer::Create();
SetLayerPropertiesForTesting(copy_layer.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(20, 20),
false);
copy_layer->SetIsDrawable(true);
scoped_refptr<Layer> copy_child = Layer::Create();
SetLayerPropertiesForTesting(copy_child.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(20, 20),
false);
copy_child->SetIsDrawable(true);
scoped_refptr<Layer> copy_grand_parent_sibling_before = Layer::Create();
SetLayerPropertiesForTesting(copy_grand_parent_sibling_before.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(40, 40),
false);
copy_grand_parent_sibling_before->SetIsDrawable(true);
scoped_refptr<Layer> copy_grand_parent_sibling_after = Layer::Create();
SetLayerPropertiesForTesting(copy_grand_parent_sibling_after.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(40, 40),
false);
copy_grand_parent_sibling_after->SetIsDrawable(true);
copy_layer->AddChild(copy_child);
copy_parent->AddChild(copy_layer);
copy_grand_parent->AddChild(copy_parent);
root->AddChild(copy_grand_parent_sibling_before);
root->AddChild(copy_grand_parent);
root->AddChild(copy_grand_parent_sibling_after);
scoped_ptr<FakeLayerTreeHost> host = FakeLayerTreeHost::Create();
host->SetRootLayer(root);
// Hide the copy_grand_parent and its subtree. But make a copy request in that
// hidden subtree on copy_layer.
copy_grand_parent->SetHideLayerAndSubtree(true);
copy_grand_parent_sibling_before->SetHideLayerAndSubtree(true);
copy_grand_parent_sibling_after->SetHideLayerAndSubtree(true);
copy_layer->RequestCopyOfOutput(CopyOutputRequest::CreateRequest(
base::Bind(&EmptyCopyOutputCallback)));
EXPECT_TRUE(copy_layer->HasCopyRequest());
RenderSurfaceLayerList render_surface_layer_list;
LayerTreeHostCommon::CalcDrawPropsMainInputsForTesting inputs(
root.get(), root->bounds(), &render_surface_layer_list);
inputs.can_adjust_raster_scales = true;
LayerTreeHostCommon::CalculateDrawProperties(&inputs);
EXPECT_TRUE(root->draw_properties().layer_or_descendant_has_copy_request);
EXPECT_TRUE(copy_grand_parent->draw_properties().
layer_or_descendant_has_copy_request);
EXPECT_TRUE(copy_parent->draw_properties().
layer_or_descendant_has_copy_request);
EXPECT_TRUE(copy_layer->draw_properties().
layer_or_descendant_has_copy_request);
EXPECT_FALSE(copy_child->draw_properties().
layer_or_descendant_has_copy_request);
EXPECT_FALSE(copy_grand_parent_sibling_before->draw_properties().
layer_or_descendant_has_copy_request);
EXPECT_FALSE(copy_grand_parent_sibling_after->draw_properties().
layer_or_descendant_has_copy_request);
// We should have three render surfaces, one for the root, one for the parent
// since it owns a surface, and one for the copy_layer.
ASSERT_EQ(3u, render_surface_layer_list.size());
EXPECT_EQ(root->id(), render_surface_layer_list.at(0)->id());
EXPECT_EQ(copy_parent->id(), render_surface_layer_list.at(1)->id());
EXPECT_EQ(copy_layer->id(), render_surface_layer_list.at(2)->id());
// The root render surface should have 2 contributing layers. The
// copy_grand_parent is hidden along with its siblings, but the copy_parent
// will appear since something in its subtree needs to be drawn for a copy
// request.
ASSERT_EQ(2u, root->render_surface()->layer_list().size());
EXPECT_EQ(root->id(), root->render_surface()->layer_list().at(0)->id());
EXPECT_EQ(copy_parent->id(),
root->render_surface()->layer_list().at(1)->id());
// Nothing actually drawns into the copy parent, so only the copy_layer will
// appear in its list, since it needs to be drawn for the copy request.
ASSERT_EQ(1u, copy_parent->render_surface()->layer_list().size());
EXPECT_EQ(copy_layer->id(),
copy_parent->render_surface()->layer_list().at(0)->id());
// The copy_layer's render surface should have two contributing layers.
ASSERT_EQ(2u, copy_layer->render_surface()->layer_list().size());
EXPECT_EQ(copy_layer->id(),
copy_layer->render_surface()->layer_list().at(0)->id());
EXPECT_EQ(copy_child->id(),
copy_layer->render_surface()->layer_list().at(1)->id());
}
TEST_F(LayerTreeHostCommonTest, ClippedOutCopyRequest) {
FakeImplProxy proxy;
FakeLayerTreeHostImpl host_impl(&proxy);
host_impl.CreatePendingTree();
const gfx::Transform identity_matrix;
scoped_refptr<Layer> root = Layer::Create();
SetLayerPropertiesForTesting(root.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(50, 50),
false);
root->SetIsDrawable(true);
scoped_refptr<Layer> copy_parent = Layer::Create();
SetLayerPropertiesForTesting(copy_parent.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(),
false);
copy_parent->SetIsDrawable(true);
copy_parent->SetMasksToBounds(true);
scoped_refptr<Layer> copy_layer = Layer::Create();
SetLayerPropertiesForTesting(copy_layer.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(30, 30),
false);
copy_layer->SetIsDrawable(true);
scoped_refptr<Layer> copy_child = Layer::Create();
SetLayerPropertiesForTesting(copy_child.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(20, 20),
false);
copy_child->SetIsDrawable(true);
copy_layer->AddChild(copy_child);
copy_parent->AddChild(copy_layer);
root->AddChild(copy_parent);
scoped_ptr<FakeLayerTreeHost> host = FakeLayerTreeHost::Create();
host->SetRootLayer(root);
copy_layer->RequestCopyOfOutput(CopyOutputRequest::CreateRequest(
base::Bind(&EmptyCopyOutputCallback)));
EXPECT_TRUE(copy_layer->HasCopyRequest());
RenderSurfaceLayerList render_surface_layer_list;
LayerTreeHostCommon::CalcDrawPropsMainInputsForTesting inputs(
root.get(), root->bounds(), &render_surface_layer_list);
inputs.can_adjust_raster_scales = true;
LayerTreeHostCommon::CalculateDrawProperties(&inputs);
// We should have one render surface, as the others are clipped out.
ASSERT_EQ(1u, render_surface_layer_list.size());
EXPECT_EQ(root->id(), render_surface_layer_list.at(0)->id());
// The root render surface should only have 1 contributing layer, since the
// other layers are empty/clipped away.
ASSERT_EQ(1u, root->render_surface()->layer_list().size());
EXPECT_EQ(root->id(), root->render_surface()->layer_list().at(0)->id());
}
TEST_F(LayerTreeHostCommonTest, VisibleContentRectInsideSurface) {
FakeImplProxy proxy;
FakeLayerTreeHostImpl host_impl(&proxy);
host_impl.CreatePendingTree();
const gfx::Transform identity_matrix;
scoped_refptr<Layer> root = Layer::Create();
SetLayerPropertiesForTesting(root.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(50, 50),
false);
root->SetIsDrawable(true);
// The surface is moved slightly outside of the viewport.
scoped_refptr<Layer> surface = Layer::Create();
SetLayerPropertiesForTesting(surface.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(-10, -20),
gfx::Size(),
false);
surface->SetForceRenderSurface(true);
scoped_refptr<Layer> surface_child = Layer::Create();
SetLayerPropertiesForTesting(surface_child.get(),
identity_matrix,
identity_matrix,
gfx::PointF(),
gfx::PointF(),
gfx::Size(50, 50),
false);
surface_child->SetIsDrawable(true);
surface->AddChild(surface_child);
root->AddChild(surface);
scoped_ptr<FakeLayerTreeHost> host = FakeLayerTreeHost::Create();
host->SetRootLayer(root);
RenderSurfaceLayerList render_surface_layer_list;
LayerTreeHostCommon::CalcDrawPropsMainInputsForTesting inputs(
root.get(), root->bounds(), &render_surface_layer_list);
inputs.can_adjust_raster_scales = true;
LayerTreeHostCommon::CalculateDrawProperties(&inputs);
// The visible_content_rect for the |surface_child| should not be clipped by
// the viewport.
EXPECT_EQ(gfx::Rect(50, 50).ToString(),
surface_child->visible_content_rect().ToString());
}
} // namespace
} // namespace cc