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damage_tracker_unittest.cc
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damage_tracker_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/damage_tracker.h"
#include <stddef.h>
#include "cc/base/filter_operation.h"
#include "cc/base/filter_operations.h"
#include "cc/base/math_util.h"
#include "cc/layers/layer_impl.h"
#include "cc/test/fake_impl_task_runner_provider.h"
#include "cc/test/fake_layer_tree_host_impl.h"
#include "cc/test/geometry_test_utils.h"
#include "cc/test/layer_test_common.h"
#include "cc/test/test_task_graph_runner.h"
#include "cc/trees/layer_tree_host_common.h"
#include "cc/trees/layer_tree_impl.h"
#include "cc/trees/single_thread_proxy.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "third_party/skia/include/effects/SkBlurImageFilter.h"
#include "ui/gfx/geometry/quad_f.h"
#include "ui/gfx/geometry/rect_conversions.h"
namespace cc {
namespace {
void ExecuteCalculateDrawProperties(LayerImpl* root,
float device_scale_factor,
RenderSurfaceList* render_surface_list) {
// Sanity check: The test itself should create the root layer's render
// surface, so that the surface (and its damage tracker) can
// persist across multiple calls to this function.
ASSERT_FALSE(render_surface_list->size());
LayerTreeHostCommon::CalcDrawPropsImplInputsForTesting inputs(
root, root->bounds(), device_scale_factor, render_surface_list);
LayerTreeHostCommon::CalculateDrawPropertiesForTesting(&inputs);
ASSERT_TRUE(GetRenderSurface(root));
}
void ClearDamageForAllSurfaces(LayerImpl* root) {
for (auto* layer : *root->layer_tree_impl()) {
if (GetRenderSurface(layer))
GetRenderSurface(layer)->damage_tracker()->DidDrawDamagedArea();
}
}
void EmulateDrawingOneFrame(LayerImpl* root, float device_scale_factor = 1.f) {
// This emulates only steps that are relevant to testing the damage tracker:
// 1. computing the render passes and layerlists
// 2. updating all damage trackers in the correct order
// 3. resetting all update_rects and property_changed flags for all layers
// and surfaces.
RenderSurfaceList render_surface_list;
ExecuteCalculateDrawProperties(root, device_scale_factor,
&render_surface_list);
DamageTracker::UpdateDamageTracking(root->layer_tree_impl(),
render_surface_list);
root->layer_tree_impl()->ResetAllChangeTracking();
}
class DamageTrackerTest : public testing::Test {
public:
DamageTrackerTest()
: host_impl_(&task_runner_provider_, &task_graph_runner_) {}
LayerImpl* CreateTestTreeWithOneSurface(int number_of_children) {
host_impl_.active_tree()->DetachLayers();
std::unique_ptr<LayerImpl> root =
LayerImpl::Create(host_impl_.active_tree(), 1);
root->SetPosition(gfx::PointF());
root->SetBounds(gfx::Size(500, 500));
root->SetDrawsContent(true);
root->test_properties()->force_render_surface = true;
for (int i = 0; i < number_of_children; ++i) {
std::unique_ptr<LayerImpl> child =
LayerImpl::Create(host_impl_.active_tree(), 2 + i);
child->SetPosition(gfx::PointF(100.f, 100.f));
child->SetBounds(gfx::Size(30, 30));
child->SetDrawsContent(true);
root->test_properties()->AddChild(std::move(child));
}
host_impl_.active_tree()->SetRootLayerForTesting(std::move(root));
host_impl_.active_tree()->SetElementIdsForTesting();
return host_impl_.active_tree()->root_layer_for_testing();
}
LayerImpl* CreateTestTreeWithTwoSurfaces() {
// This test tree has two render surfaces: one for the root, and one for
// child1. Additionally, the root has a second child layer, and child1 has
// two children of its own.
host_impl_.active_tree()->DetachLayers();
std::unique_ptr<LayerImpl> root =
LayerImpl::Create(host_impl_.active_tree(), 1);
std::unique_ptr<LayerImpl> child1 =
LayerImpl::Create(host_impl_.active_tree(), 2);
std::unique_ptr<LayerImpl> child2 =
LayerImpl::Create(host_impl_.active_tree(), 3);
std::unique_ptr<LayerImpl> grand_child1 =
LayerImpl::Create(host_impl_.active_tree(), 4);
std::unique_ptr<LayerImpl> grand_child2 =
LayerImpl::Create(host_impl_.active_tree(), 5);
root->SetPosition(gfx::PointF());
root->SetBounds(gfx::Size(500, 500));
root->SetDrawsContent(true);
root->test_properties()->force_render_surface = true;
child1->SetPosition(gfx::PointF(100.f, 100.f));
child1->SetBounds(gfx::Size(30, 30));
// With a child that draws_content, opacity will cause the layer to create
// its own RenderSurface. This layer does not draw, but is intended to
// create its own RenderSurface.
child1->SetDrawsContent(false);
child1->test_properties()->force_render_surface = true;
child2->SetPosition(gfx::PointF(11.f, 11.f));
child2->SetBounds(gfx::Size(18, 18));
child2->SetDrawsContent(true);
grand_child1->SetPosition(gfx::PointF(200.f, 200.f));
grand_child1->SetBounds(gfx::Size(6, 8));
grand_child1->SetDrawsContent(true);
grand_child2->SetPosition(gfx::PointF(190.f, 190.f));
grand_child2->SetBounds(gfx::Size(6, 8));
grand_child2->SetDrawsContent(true);
child1->test_properties()->AddChild(std::move(grand_child1));
child1->test_properties()->AddChild(std::move(grand_child2));
root->test_properties()->AddChild(std::move(child1));
root->test_properties()->AddChild(std::move(child2));
host_impl_.active_tree()->SetRootLayerForTesting(std::move(root));
host_impl_.active_tree()->SetElementIdsForTesting();
return host_impl_.active_tree()->root_layer_for_testing();
}
LayerImpl* CreateAndSetUpTestTreeWithOneSurface(int number_of_children = 1) {
LayerImpl* root = CreateTestTreeWithOneSurface(number_of_children);
// Setup includes going past the first frame which always damages
// everything, so that we can actually perform specific tests.
root->layer_tree_impl()->property_trees()->needs_rebuild = true;
EmulateDrawingOneFrame(root);
return root;
}
LayerImpl* CreateAndSetUpTestTreeWithTwoSurfaces() {
LayerImpl* root = CreateTestTreeWithTwoSurfaces();
// Setup includes going past the first frame which always damages
// everything, so that we can actually perform specific tests.
root->layer_tree_impl()->property_trees()->needs_rebuild = true;
EmulateDrawingOneFrame(root);
return root;
}
protected:
FakeImplTaskRunnerProvider task_runner_provider_;
TestTaskGraphRunner task_graph_runner_;
FakeLayerTreeHostImpl host_impl_;
};
TEST_F(DamageTrackerTest, SanityCheckTestTreeWithOneSurface) {
// Sanity check that the simple test tree will actually produce the expected
// render surfaces.
LayerImpl* root = CreateAndSetUpTestTreeWithOneSurface();
LayerImpl* child = root->test_properties()->children[0];
EXPECT_EQ(2, GetRenderSurface(root)->num_contributors());
EXPECT_TRUE(root->contributes_to_drawn_render_surface());
EXPECT_TRUE(child->contributes_to_drawn_render_surface());
gfx::Rect root_damage_rect;
EXPECT_TRUE(GetRenderSurface(root)->damage_tracker()->GetDamageRectIfValid(
&root_damage_rect));
EXPECT_EQ(gfx::Rect(500, 500).ToString(), root_damage_rect.ToString());
EXPECT_TRUE(GetRenderSurface(root)
->damage_tracker()
->has_damage_from_contributing_content());
}
TEST_F(DamageTrackerTest, SanityCheckTestTreeWithTwoSurfaces) {
// Sanity check that the complex test tree will actually produce the expected
// render surfaces.
LayerImpl* root = CreateAndSetUpTestTreeWithTwoSurfaces();
LayerImpl* child1 = root->test_properties()->children[0];
LayerImpl* child2 = root->test_properties()->children[1];
gfx::Rect child_damage_rect;
EXPECT_TRUE(GetRenderSurface(child1)->damage_tracker()->GetDamageRectIfValid(
&child_damage_rect));
gfx::Rect root_damage_rect;
EXPECT_TRUE(GetRenderSurface(root)->damage_tracker()->GetDamageRectIfValid(
&root_damage_rect));
EXPECT_NE(GetRenderSurface(child1), GetRenderSurface(root));
EXPECT_EQ(GetRenderSurface(child2), GetRenderSurface(root));
EXPECT_EQ(3, GetRenderSurface(root)->num_contributors());
EXPECT_EQ(2, GetRenderSurface(child1)->num_contributors());
// The render surface for child1 only has a content_rect that encloses
// grand_child1 and grand_child2, because child1 does not draw content.
EXPECT_EQ(gfx::Rect(190, 190, 16, 18).ToString(),
child_damage_rect.ToString());
EXPECT_EQ(gfx::Rect(500, 500).ToString(), root_damage_rect.ToString());
EXPECT_TRUE(GetRenderSurface(root)
->damage_tracker()
->has_damage_from_contributing_content());
EXPECT_TRUE(GetRenderSurface(child1)
->damage_tracker()
->has_damage_from_contributing_content());
}
TEST_F(DamageTrackerTest, VerifyDamageForUpdateRects) {
LayerImpl* root = CreateAndSetUpTestTreeWithOneSurface();
LayerImpl* child = root->test_properties()->children[0];
// CASE 1: Setting the update rect should cause the corresponding damage to
// the surface.
ClearDamageForAllSurfaces(root);
child->SetUpdateRect(gfx::Rect(10, 11, 12, 13));
root->layer_tree_impl()->property_trees()->needs_rebuild = true;
EmulateDrawingOneFrame(root);
// Damage position on the surface should be: position of update_rect (10, 11)
// relative to the child (100, 100).
gfx::Rect root_damage_rect;
EXPECT_TRUE(GetRenderSurface(root)->damage_tracker()->GetDamageRectIfValid(
&root_damage_rect));
EXPECT_EQ(gfx::Rect(110, 111, 12, 13).ToString(),
root_damage_rect.ToString());
// CASE 2: The same update rect twice in a row still produces the same
// damage.
ClearDamageForAllSurfaces(root);
child->SetUpdateRect(gfx::Rect(10, 11, 12, 13));
root->layer_tree_impl()->property_trees()->needs_rebuild = true;
EmulateDrawingOneFrame(root);
EXPECT_TRUE(GetRenderSurface(root)->damage_tracker()->GetDamageRectIfValid(
&root_damage_rect));
EXPECT_EQ(gfx::Rect(110, 111, 12, 13).ToString(),
root_damage_rect.ToString());
// CASE 3: Setting a different update rect should cause damage on the new
// update region, but no additional exposed old region.
ClearDamageForAllSurfaces(root);
child->SetUpdateRect(gfx::Rect(20, 25, 1, 2));
root->layer_tree_impl()->property_trees()->needs_rebuild = true;
EmulateDrawingOneFrame(root);
// Damage position on the surface should be: position of update_rect (20, 25)
// relative to the child (100, 100).
EXPECT_TRUE(GetRenderSurface(root)->damage_tracker()->GetDamageRectIfValid(
&root_damage_rect));
EXPECT_EQ(gfx::Rect(120, 125, 1, 2).ToString(), root_damage_rect.ToString());
EXPECT_TRUE(GetRenderSurface(root)
->damage_tracker()
->has_damage_from_contributing_content());
}
TEST_F(DamageTrackerTest, VerifyDamageForLayerDamageRects) {
LayerImpl* root = CreateAndSetUpTestTreeWithOneSurface();
LayerImpl* child = root->test_properties()->children[0];
// CASE 1: Adding the layer damage rect should cause the corresponding damage
// to the surface.
ClearDamageForAllSurfaces(root);
child->AddDamageRect(gfx::Rect(10, 11, 12, 13));
root->layer_tree_impl()->property_trees()->needs_rebuild = true;
EmulateDrawingOneFrame(root);
// Damage position on the surface should be: position of layer damage_rect
// (10, 11) relative to the child (100, 100).
gfx::Rect root_damage_rect;
EXPECT_TRUE(GetRenderSurface(root)->damage_tracker()->GetDamageRectIfValid(
&root_damage_rect));
EXPECT_EQ(true, root_damage_rect.Contains(gfx::Rect(110, 111, 12, 13)));
// CASE 2: The same layer damage rect twice in a row still produces the same
// damage.
ClearDamageForAllSurfaces(root);
child->AddDamageRect(gfx::Rect(10, 11, 12, 13));
root->layer_tree_impl()->property_trees()->needs_rebuild = true;
EmulateDrawingOneFrame(root);
EXPECT_TRUE(GetRenderSurface(root)->damage_tracker()->GetDamageRectIfValid(
&root_damage_rect));
EXPECT_EQ(true, root_damage_rect.Contains(gfx::Rect(110, 111, 12, 13)));
// CASE 3: Adding a different layer damage rect should cause damage on the
// new damaged region, but no additional exposed old region.
ClearDamageForAllSurfaces(root);
child->AddDamageRect(gfx::Rect(20, 25, 1, 2));
root->layer_tree_impl()->property_trees()->needs_rebuild = true;
EmulateDrawingOneFrame(root);
// Damage position on the surface should be: position of layer damage_rect
// (20, 25) relative to the child (100, 100).
EXPECT_TRUE(GetRenderSurface(root)->damage_tracker()->GetDamageRectIfValid(
&root_damage_rect));
EXPECT_EQ(true, root_damage_rect.Contains(gfx::Rect(120, 125, 1, 2)));
// CASE 4: Adding multiple layer damage rects should cause a unified
// damage on root damage rect.
ClearDamageForAllSurfaces(root);
child->AddDamageRect(gfx::Rect(20, 25, 1, 2));
child->AddDamageRect(gfx::Rect(10, 15, 3, 4));
root->layer_tree_impl()->property_trees()->needs_rebuild = true;
EmulateDrawingOneFrame(root);
// Damage position on the surface should be: position of layer damage_rect
// (20, 25) relative to the child (100, 100).
EXPECT_TRUE(GetRenderSurface(root)->damage_tracker()->GetDamageRectIfValid(
&root_damage_rect));
EXPECT_EQ(true, root_damage_rect.Contains(gfx::Rect(120, 125, 1, 2)));
EXPECT_EQ(true, root_damage_rect.Contains(gfx::Rect(110, 115, 3, 4)));
EXPECT_TRUE(GetRenderSurface(root)
->damage_tracker()
->has_damage_from_contributing_content());
}
TEST_F(DamageTrackerTest, VerifyDamageForLayerUpdateAndDamageRects) {
LayerImpl* root = CreateAndSetUpTestTreeWithOneSurface();
LayerImpl* child = root->test_properties()->children[0];
// CASE 1: Adding the layer damage rect and update rect should cause the
// corresponding damage to the surface.
ClearDamageForAllSurfaces(root);
child->AddDamageRect(gfx::Rect(5, 6, 12, 13));
child->SetUpdateRect(gfx::Rect(15, 16, 14, 10));
root->layer_tree_impl()->property_trees()->needs_rebuild = true;
EmulateDrawingOneFrame(root);
// Damage position on the surface should be: position of unified layer
// damage_rect and update rect (5, 6)
// relative to the child (100, 100).
gfx::Rect root_damage_rect;
EXPECT_TRUE(GetRenderSurface(root)->damage_tracker()->GetDamageRectIfValid(
&root_damage_rect));
EXPECT_EQ(true, root_damage_rect.Contains(gfx::Rect(105, 106, 24, 20)));
// CASE 2: The same layer damage rect and update rect twice in a row still
// produces the same damage.
ClearDamageForAllSurfaces(root);
child->AddDamageRect(gfx::Rect(10, 11, 12, 13));
child->SetUpdateRect(gfx::Rect(10, 11, 14, 15));
root->layer_tree_impl()->property_trees()->needs_rebuild = true;
EmulateDrawingOneFrame(root);
EXPECT_TRUE(GetRenderSurface(root)->damage_tracker()->GetDamageRectIfValid(
&root_damage_rect));
EXPECT_EQ(true, root_damage_rect.Contains(gfx::Rect(110, 111, 14, 15)));
// CASE 3: Adding a different layer damage rect and update rect should cause
// damage on the new damaged region, but no additional exposed old region.
ClearDamageForAllSurfaces(root);
child->AddDamageRect(gfx::Rect(20, 25, 2, 3));
child->SetUpdateRect(gfx::Rect(5, 10, 7, 8));
root->layer_tree_impl()->property_trees()->needs_rebuild = true;
EmulateDrawingOneFrame(root);
// Damage position on the surface should be: position of unified layer damage
// rect and update rect (5, 10) relative to the child (100, 100).
EXPECT_TRUE(GetRenderSurface(root)->damage_tracker()->GetDamageRectIfValid(
&root_damage_rect));
EXPECT_EQ(true, root_damage_rect.Contains(gfx::Rect(105, 110, 17, 18)));
EXPECT_TRUE(GetRenderSurface(root)
->damage_tracker()
->has_damage_from_contributing_content());
}
TEST_F(DamageTrackerTest, VerifyDamageForPropertyChanges) {
LayerImpl* root = CreateAndSetUpTestTreeWithOneSurface();
LayerImpl* child = root->test_properties()->children[0];
// CASE 1: The layer's property changed flag takes priority over update rect.
//
child->test_properties()->force_render_surface = true;
root->layer_tree_impl()->property_trees()->needs_rebuild = true;
EmulateDrawingOneFrame(root);
ClearDamageForAllSurfaces(root);
child->SetUpdateRect(gfx::Rect(10, 11, 12, 13));
root->layer_tree_impl()->SetOpacityMutated(child->element_id(), 0.5f);
EmulateDrawingOneFrame(root);
ASSERT_EQ(2, GetRenderSurface(root)->num_contributors());
// Damage should be the entire child layer in target_surface space.
gfx::Rect expected_rect = gfx::Rect(100, 100, 30, 30);
gfx::Rect root_damage_rect;
EXPECT_TRUE(GetRenderSurface(root)->damage_tracker()->GetDamageRectIfValid(
&root_damage_rect));
EXPECT_EQ(expected_rect.ToString(), root_damage_rect.ToString());
EXPECT_TRUE(GetRenderSurface(root)
->damage_tracker()
->has_damage_from_contributing_content());
EXPECT_TRUE(GetRenderSurface(child)
->damage_tracker()
->has_damage_from_contributing_content());
// CASE 2: If a layer moves due to property change, it damages both the new
// location and the old (exposed) location. The old location is the
// entire old layer, not just the update_rect.
// Cycle one frame of no change, just to sanity check that the next rect is
// not because of the old damage state.
ClearDamageForAllSurfaces(root);
root->layer_tree_impl()->property_trees()->needs_rebuild = true;
EmulateDrawingOneFrame(root);
EXPECT_TRUE(GetRenderSurface(root)->damage_tracker()->GetDamageRectIfValid(
&root_damage_rect));
EXPECT_TRUE(root_damage_rect.IsEmpty());
// Then, test the actual layer movement.
ClearDamageForAllSurfaces(root);
gfx::Transform translation;
translation.Translate(100.f, 130.f);
root->layer_tree_impl()->SetTransformMutated(child->element_id(),
translation);
EmulateDrawingOneFrame(root);
// Expect damage to be the combination of the previous one and the new one.
expected_rect.Union(gfx::Rect(200, 230, 30, 30));
EXPECT_TRUE(GetRenderSurface(root)->damage_tracker()->GetDamageRectIfValid(
&root_damage_rect));
EXPECT_FLOAT_RECT_EQ(expected_rect, root_damage_rect);
EXPECT_TRUE(GetRenderSurface(root)
->damage_tracker()
->has_damage_from_contributing_content());
// Transform from browser animation should not be considered as damage from
// contributing layer since it is applied to the whole layer which has a
// render surface.
EXPECT_FALSE(GetRenderSurface(child)
->damage_tracker()
->has_damage_from_contributing_content());
}
TEST_F(DamageTrackerTest,
VerifyDamageForPropertyChangesFromContributingContents) {
LayerImpl* root = CreateAndSetUpTestTreeWithTwoSurfaces();
LayerImpl* child1 = root->test_properties()->children[0];
LayerImpl* child2 = root->test_properties()->children[1];
LayerImpl* grandchild1 = child1->test_properties()->children[0];
// CASE 1: The child1's opacity changed.
ClearDamageForAllSurfaces(root);
root->layer_tree_impl()->SetOpacityMutated(child1->element_id(), 0.5f);
EmulateDrawingOneFrame(root);
EXPECT_TRUE(GetRenderSurface(root)
->damage_tracker()
->has_damage_from_contributing_content());
EXPECT_FALSE(GetRenderSurface(child1)
->damage_tracker()
->has_damage_from_contributing_content());
// CASE 2: The layer2's opacity changed.
child2->test_properties()->force_render_surface = true;
root->layer_tree_impl()->property_trees()->needs_rebuild = true;
EmulateDrawingOneFrame(root);
ClearDamageForAllSurfaces(root);
root->layer_tree_impl()->SetOpacityMutated(child2->element_id(), 0.5f);
EmulateDrawingOneFrame(root);
EXPECT_TRUE(GetRenderSurface(root)
->damage_tracker()
->has_damage_from_contributing_content());
EXPECT_FALSE(GetRenderSurface(child1)
->damage_tracker()
->has_damage_from_contributing_content());
// CASE 3: The grandchild1's opacity changed.
grandchild1->test_properties()->force_render_surface = true;
root->layer_tree_impl()->property_trees()->needs_rebuild = true;
EmulateDrawingOneFrame(root);
ClearDamageForAllSurfaces(root);
root->layer_tree_impl()->SetOpacityMutated(grandchild1->element_id(), 0.5f);
EmulateDrawingOneFrame(root);
EXPECT_TRUE(GetRenderSurface(root)
->damage_tracker()
->has_damage_from_contributing_content());
EXPECT_TRUE(GetRenderSurface(child1)
->damage_tracker()
->has_damage_from_contributing_content());
}
TEST_F(DamageTrackerTest,
VerifyDamageForUpdateAndDamageRectsFromContributingContents) {
LayerImpl* root = CreateAndSetUpTestTreeWithTwoSurfaces();
LayerImpl* child1 = root->test_properties()->children[0];
LayerImpl* child2 = root->test_properties()->children[1];
LayerImpl* grandchild1 = child1->test_properties()->children[0];
// CASE 1: Adding the layer1's damage rect and update rect should cause the
// corresponding damage to the surface.
child1->SetDrawsContent(true);
ClearDamageForAllSurfaces(root);
child1->AddDamageRect(gfx::Rect(105, 106, 12, 15));
child1->SetUpdateRect(gfx::Rect(115, 116, 12, 15));
root->layer_tree_impl()->property_trees()->needs_rebuild = true;
EmulateDrawingOneFrame(root);
EXPECT_TRUE(GetRenderSurface(root)
->damage_tracker()
->has_damage_from_contributing_content());
EXPECT_TRUE(GetRenderSurface(child1)
->damage_tracker()
->has_damage_from_contributing_content());
// CASE 2: Adding the layer2's damage rect and update rect should cause the
// corresponding damage to the surface.
ClearDamageForAllSurfaces(root);
child2->AddDamageRect(gfx::Rect(11, 11, 12, 15));
child2->SetUpdateRect(gfx::Rect(12, 12, 12, 15));
EmulateDrawingOneFrame(root);
EXPECT_TRUE(GetRenderSurface(root)
->damage_tracker()
->has_damage_from_contributing_content());
EXPECT_FALSE(GetRenderSurface(child1)
->damage_tracker()
->has_damage_from_contributing_content());
// CASE 3: Adding the grandchild1's damage rect and update rect should cause
// the corresponding damage to the surface.
ClearDamageForAllSurfaces(root);
grandchild1->AddDamageRect(gfx::Rect(1, 0, 2, 5));
grandchild1->SetUpdateRect(gfx::Rect(2, 1, 2, 5));
EmulateDrawingOneFrame(root);
EXPECT_TRUE(GetRenderSurface(root)
->damage_tracker()
->has_damage_from_contributing_content());
EXPECT_TRUE(GetRenderSurface(child1)
->damage_tracker()
->has_damage_from_contributing_content());
}
TEST_F(DamageTrackerTest, VerifyDamageWhenSurfaceRemoved) {
LayerImpl* root = CreateAndSetUpTestTreeWithTwoSurfaces();
LayerImpl* surface = root->test_properties()->children[0];
LayerImpl* child = surface->test_properties()->children[0];
child->SetDrawsContent(true);
EmulateDrawingOneFrame(root);
ClearDamageForAllSurfaces(root);
surface->test_properties()->force_render_surface = false;
child->SetDrawsContent(false);
root->layer_tree_impl()->property_trees()->needs_rebuild = true;
EmulateDrawingOneFrame(root);
gfx::Rect root_damage_rect;
EXPECT_TRUE(GetRenderSurface(root)->damage_tracker()->GetDamageRectIfValid(
&root_damage_rect));
EXPECT_EQ(gfx::Rect(290, 290, 16, 18).ToString(),
root_damage_rect.ToString());
EXPECT_TRUE(GetRenderSurface(root)
->damage_tracker()
->has_damage_from_contributing_content());
}
TEST_F(DamageTrackerTest, VerifyDamageForTransformedLayer) {
// If a layer is transformed, the damage rect should still enclose the entire
// transformed layer.
LayerImpl* root = CreateAndSetUpTestTreeWithOneSurface();
LayerImpl* child = root->test_properties()->children[0];
child->test_properties()->force_render_surface = true;
gfx::Transform rotation;
rotation.Rotate(45.0);
ClearDamageForAllSurfaces(root);
child->test_properties()->transform_origin = gfx::Point3F(
child->bounds().width() * 0.5f, child->bounds().height() * 0.5f, 0.f);
child->SetPosition(gfx::PointF(85.f, 85.f));
child->NoteLayerPropertyChanged();
root->layer_tree_impl()->property_trees()->needs_rebuild = true;
EmulateDrawingOneFrame(root);
// Sanity check that the layer actually moved to (85, 85), damaging its old
// location and new location.
gfx::Rect root_damage_rect;
EXPECT_TRUE(GetRenderSurface(root)->damage_tracker()->GetDamageRectIfValid(
&root_damage_rect));
EXPECT_EQ(gfx::Rect(85, 85, 45, 45).ToString(), root_damage_rect.ToString());
EXPECT_TRUE(GetRenderSurface(root)
->damage_tracker()
->has_damage_from_contributing_content());
// Layer's layer_property_changed_ should be considered as damage to render
// surface.
EXPECT_TRUE(GetRenderSurface(child)
->damage_tracker()
->has_damage_from_contributing_content());
// With the anchor on the layer's center, now we can test the rotation more
// intuitively, since it applies about the layer's anchor.
ClearDamageForAllSurfaces(root);
root->layer_tree_impl()->SetTransformMutated(child->element_id(), rotation);
EmulateDrawingOneFrame(root);
// Since the child layer is square, rotation by 45 degrees about the center
// should increase the size of the expected rect by sqrt(2), centered around
// (100, 100). The old exposed region should be fully contained in the new
// region.
float expected_width = 30.f * sqrt(2.f);
float expected_position = 100.f - 0.5f * expected_width;
gfx::Rect expected_rect = gfx::ToEnclosingRect(gfx::RectF(
expected_position, expected_position, expected_width, expected_width));
EXPECT_TRUE(GetRenderSurface(root)->damage_tracker()->GetDamageRectIfValid(
&root_damage_rect));
EXPECT_EQ(expected_rect.ToString(), root_damage_rect.ToString());
EXPECT_TRUE(GetRenderSurface(root)
->damage_tracker()
->has_damage_from_contributing_content());
// Transform from browser animation should not be considered as damage from
// contributing layer since it is applied to the whole layer which has a
// render surface.
EXPECT_FALSE(GetRenderSurface(child)
->damage_tracker()
->has_damage_from_contributing_content());
}
TEST_F(DamageTrackerTest, VerifyDamageForPerspectiveClippedLayer) {
// If a layer has a perspective transform that causes w < 0, then not
// clipping the layer can cause an invalid damage rect. This test checks that
// the w < 0 case is tracked properly.
//
// The transform is constructed so that if w < 0 clipping is not performed,
// the incorrect rect will be very small, specifically: position (500.972504,
// 498.544617) and size 0.056610 x 2.910767. Instead, the correctly
// transformed rect should actually be very huge (i.e. in theory, -infinity
// on the left), and positioned so that the right-most bound rect will be
// approximately 501 units in root surface space.
//
LayerImpl* root = CreateAndSetUpTestTreeWithOneSurface();
LayerImpl* child = root->test_properties()->children[0];
gfx::Transform transform;
transform.Translate3d(550.0, 500.0, 0.0);
transform.ApplyPerspectiveDepth(1.0);
transform.RotateAboutYAxis(45.0);
transform.Translate3d(-50.0, -50.0, 0.0);
// Set up the child
child->SetPosition(gfx::PointF(0.f, 0.f));
child->SetBounds(gfx::Size(100, 100));
child->test_properties()->transform = transform;
root->layer_tree_impl()->property_trees()->needs_rebuild = true;
EmulateDrawingOneFrame(root);
// Sanity check that the child layer's bounds would actually get clipped by
// w < 0, otherwise this test is not actually testing the intended scenario.
gfx::RectF test_rect(child->position(), gfx::SizeF(child->bounds()));
bool clipped = false;
MathUtil::MapQuad(transform, gfx::QuadF(test_rect), &clipped);
EXPECT_TRUE(clipped);
// Damage the child without moving it.
child->test_properties()->force_render_surface = true;
root->layer_tree_impl()->property_trees()->needs_rebuild = true;
EmulateDrawingOneFrame(root);
ClearDamageForAllSurfaces(root);
root->layer_tree_impl()->SetOpacityMutated(child->element_id(), 0.5f);
EmulateDrawingOneFrame(root);
// The expected damage should cover the entire root surface (500x500), but we
// don't care whether the damage rect was clamped or is larger than the
// surface for this test.
gfx::Rect root_damage_rect;
EXPECT_TRUE(GetRenderSurface(root)->damage_tracker()->GetDamageRectIfValid(
&root_damage_rect));
gfx::Rect damage_we_care_about = gfx::Rect(gfx::Size(500, 500));
EXPECT_TRUE(root_damage_rect.Contains(damage_we_care_about));
EXPECT_TRUE(GetRenderSurface(root)
->damage_tracker()
->has_damage_from_contributing_content());
EXPECT_FALSE(GetRenderSurface(child)
->damage_tracker()
->has_damage_from_contributing_content());
}
TEST_F(DamageTrackerTest, VerifyDamageForBlurredSurface) {
LayerImpl* root = CreateAndSetUpTestTreeWithTwoSurfaces();
LayerImpl* surface = root->test_properties()->children[0];
LayerImpl* child = surface->test_properties()->children[0];
FilterOperations filters;
filters.Append(FilterOperation::CreateBlurFilter(5.f));
// Setting the filter should not damage the conrresponding render surface.
ClearDamageForAllSurfaces(root);
surface->test_properties()->filters = filters;
root->layer_tree_impl()->property_trees()->needs_rebuild = true;
EmulateDrawingOneFrame(root);
EXPECT_FALSE(GetRenderSurface(root)
->damage_tracker()
->has_damage_from_contributing_content());
EXPECT_FALSE(GetRenderSurface(surface)
->damage_tracker()
->has_damage_from_contributing_content());
// Setting the update rect should cause the corresponding damage to the
// surface, blurred based on the size of the blur filter.
ClearDamageForAllSurfaces(root);
child->SetUpdateRect(gfx::Rect(1, 2, 3, 4));
root->layer_tree_impl()->property_trees()->needs_rebuild = true;
EmulateDrawingOneFrame(root);
// Damage position on the surface should be: position of update_rect (1, 2)
// relative to the child (300, 300), but expanded by the blur outsets
// (15, since the blur radius is 5).
gfx::Rect root_damage_rect;
EXPECT_TRUE(GetRenderSurface(root)->damage_tracker()->GetDamageRectIfValid(
&root_damage_rect));
EXPECT_EQ(gfx::Rect(286, 287, 33, 34), root_damage_rect);
EXPECT_TRUE(GetRenderSurface(root)
->damage_tracker()
->has_damage_from_contributing_content());
EXPECT_TRUE(GetRenderSurface(surface)
->damage_tracker()
->has_damage_from_contributing_content());
}
TEST_F(DamageTrackerTest, VerifyDamageForImageFilter) {
LayerImpl* root = CreateAndSetUpTestTreeWithOneSurface();
LayerImpl* child = root->test_properties()->children[0];
gfx::Rect root_damage_rect, child_damage_rect;
// Allow us to set damage on child too.
child->SetDrawsContent(true);
FilterOperations filters;
filters.Append(FilterOperation::CreateReferenceFilter(
SkBlurImageFilter::Make(2, 2, nullptr)));
// Setting the filter will damage the whole surface.
child->test_properties()->force_render_surface = true;
root->layer_tree_impl()->property_trees()->needs_rebuild = true;
EmulateDrawingOneFrame(root);
ClearDamageForAllSurfaces(root);
child->layer_tree_impl()->SetFilterMutated(child->element_id(), filters);
EmulateDrawingOneFrame(root);
EXPECT_TRUE(GetRenderSurface(root)->damage_tracker()->GetDamageRectIfValid(
&root_damage_rect));
EXPECT_TRUE(GetRenderSurface(child)->damage_tracker()->GetDamageRectIfValid(
&child_damage_rect));
// gfx::Rect(100, 100, 30, 30), expanded by 6px for the 2px blur filter.
EXPECT_EQ(gfx::Rect(94, 94, 42, 42), root_damage_rect);
// gfx::Rect(0, 0, 30, 30), expanded by 6px for the 2px blur filter.
EXPECT_EQ(gfx::Rect(-6, -6, 42, 42), child_damage_rect);
EXPECT_TRUE(GetRenderSurface(root)
->damage_tracker()
->has_damage_from_contributing_content());
EXPECT_FALSE(GetRenderSurface(child)
->damage_tracker()
->has_damage_from_contributing_content());
// CASE 1: Setting the update rect should damage the whole surface (for now)
ClearDamageForAllSurfaces(root);
child->SetUpdateRect(gfx::Rect(1, 1));
EmulateDrawingOneFrame(root);
EXPECT_TRUE(GetRenderSurface(root)->damage_tracker()->GetDamageRectIfValid(
&root_damage_rect));
EXPECT_TRUE(GetRenderSurface(child)->damage_tracker()->GetDamageRectIfValid(
&child_damage_rect));
// gfx::Rect(100, 100, 1, 1), expanded by 6px for the 2px blur filter.
EXPECT_EQ(gfx::Rect(94, 94, 13, 13), root_damage_rect);
// gfx::Rect(0, 0, 1, 1), expanded by 6px for the 2px blur filter.
EXPECT_EQ(gfx::Rect(-6, -6, 13, 13), child_damage_rect);
EXPECT_TRUE(GetRenderSurface(root)
->damage_tracker()
->has_damage_from_contributing_content());
EXPECT_TRUE(GetRenderSurface(child)
->damage_tracker()
->has_damage_from_contributing_content());
// CASE 2: No changes, so should not damage the surface.
ClearDamageForAllSurfaces(root);
EmulateDrawingOneFrame(root);
EXPECT_TRUE(GetRenderSurface(root)->damage_tracker()->GetDamageRectIfValid(
&root_damage_rect));
EXPECT_TRUE(GetRenderSurface(child)->damage_tracker()->GetDamageRectIfValid(
&child_damage_rect));
// Should not be expanded by the blur filter.
EXPECT_EQ(gfx::Rect(), root_damage_rect);
EXPECT_EQ(gfx::Rect(), child_damage_rect);
EXPECT_FALSE(GetRenderSurface(root)
->damage_tracker()
->has_damage_from_contributing_content());
EXPECT_FALSE(GetRenderSurface(child)
->damage_tracker()
->has_damage_from_contributing_content());
}
TEST_F(DamageTrackerTest, VerifyDamageForTransformedImageFilter) {
LayerImpl* root = CreateAndSetUpTestTreeWithOneSurface();
LayerImpl* child = root->test_properties()->children[0];
gfx::Rect root_damage_rect, child_damage_rect;
// Allow us to set damage on child too.
child->SetDrawsContent(true);
FilterOperations filters;
filters.Append(FilterOperation::CreateReferenceFilter(
SkBlurImageFilter::Make(2, 2, nullptr)));
// Setting the filter will damage the whole surface.
gfx::Transform transform;
transform.RotateAboutYAxis(60);
ClearDamageForAllSurfaces(root);
child->test_properties()->force_render_surface = true;
child->test_properties()->transform = transform;
root->layer_tree_impl()->property_trees()->needs_rebuild = true;
EmulateDrawingOneFrame(root);
child->layer_tree_impl()->SetFilterMutated(child->element_id(), filters);
EmulateDrawingOneFrame(root);
EXPECT_TRUE(GetRenderSurface(root)->damage_tracker()->GetDamageRectIfValid(
&root_damage_rect));
EXPECT_TRUE(GetRenderSurface(child)->damage_tracker()->GetDamageRectIfValid(
&child_damage_rect));
// Blur outset is 6px for a 2px blur.
int blur_outset = 6;
int rotated_outset_left = blur_outset / 2;
int expected_rotated_width = (30 + 2 * blur_outset) / 2;
gfx::Rect expected_root_damage(100 - rotated_outset_left, 100 - blur_outset,
expected_rotated_width, 30 + 2 * blur_outset);
expected_root_damage.Union(gfx::Rect(100, 100, 30, 30));
EXPECT_EQ(expected_root_damage, root_damage_rect);
EXPECT_EQ(gfx::Rect(-blur_outset, -blur_outset, 30 + 2 * blur_outset,
30 + 2 * blur_outset),
child_damage_rect);
// Setting the update rect should damage the whole surface (for now)
ClearDamageForAllSurfaces(root);
child->SetUpdateRect(gfx::Rect(30, 30));
EmulateDrawingOneFrame(root);
EXPECT_TRUE(GetRenderSurface(root)->damage_tracker()->GetDamageRectIfValid(
&root_damage_rect));
EXPECT_TRUE(GetRenderSurface(child)->damage_tracker()->GetDamageRectIfValid(
&child_damage_rect));
int expect_width = 30 + 2 * blur_outset;
int expect_height = 30 + 2 * blur_outset;
EXPECT_EQ(gfx::Rect(100 - blur_outset / 2, 100 - blur_outset,
expect_width / 2, expect_height),
root_damage_rect);
EXPECT_EQ(gfx::Rect(-blur_outset, -blur_outset, expect_width, expect_height),
child_damage_rect);
}
TEST_F(DamageTrackerTest, VerifyDamageForHighDPIImageFilter) {
LayerImpl* root = CreateAndSetUpTestTreeWithOneSurface();
LayerImpl* child = root->test_properties()->children[0];
gfx::Rect root_damage_rect, child_damage_rect;
// Allow us to set damage on child too.
child->SetDrawsContent(true);
FilterOperations filters;
filters.Append(FilterOperation::CreateBlurFilter(3.f));
// Setting the filter will damage the whole surface.
ClearDamageForAllSurfaces(root);
child->test_properties()->force_render_surface = true;
root->layer_tree_impl()->property_trees()->needs_rebuild = true;
int device_scale_factor = 2;
EmulateDrawingOneFrame(root, device_scale_factor);
child->layer_tree_impl()->SetFilterMutated(child->element_id(), filters);
EmulateDrawingOneFrame(root, device_scale_factor);
EXPECT_TRUE(GetRenderSurface(root)->damage_tracker()->GetDamageRectIfValid(
&root_damage_rect));
EXPECT_TRUE(GetRenderSurface(child)->damage_tracker()->GetDamageRectIfValid(
&child_damage_rect));
// Blur outset is 9px for a 3px blur, scaled up by DSF.
int blur_outset = 9 * device_scale_factor;
gfx::Rect original_rect(100, 100, 100, 100);
gfx::Rect expected_child_damage_rect(60, 60);
expected_child_damage_rect.Inset(-blur_outset, -blur_outset);
gfx::Rect expected_root_damage_rect(child_damage_rect);
expected_root_damage_rect.Offset(200, 200);
gfx::Rect expected_total_damage_rect = expected_root_damage_rect;
expected_total_damage_rect.Union(original_rect);
EXPECT_EQ(expected_total_damage_rect, root_damage_rect);
EXPECT_EQ(expected_child_damage_rect, child_damage_rect);
// Setting the update rect should damage only the affected area (original,
// outset by 3 * blur sigma * DSF).
ClearDamageForAllSurfaces(root);
child->SetUpdateRect(gfx::Rect(30, 30));
EmulateDrawingOneFrame(root, device_scale_factor);
EXPECT_TRUE(GetRenderSurface(root)->damage_tracker()->GetDamageRectIfValid(
&root_damage_rect));
EXPECT_TRUE(GetRenderSurface(child)->damage_tracker()->GetDamageRectIfValid(
&child_damage_rect));
EXPECT_EQ(expected_root_damage_rect, root_damage_rect);
EXPECT_EQ(expected_child_damage_rect, child_damage_rect);
}
TEST_F(DamageTrackerTest, VerifyDamageForBackgroundBlurredChild) {
LayerImpl* root = CreateAndSetUpTestTreeWithTwoSurfaces();
LayerImpl* child1 = root->test_properties()->children[0];
LayerImpl* child2 = root->test_properties()->children[1];
// Allow us to set damage on child1 too.
child1->SetDrawsContent(true);
FilterOperations filters;
filters.Append(FilterOperation::CreateBlurFilter(2.f));
// Setting the filter will damage the whole surface.
ClearDamageForAllSurfaces(root);
child1->test_properties()->background_filters = filters;
child1->NoteLayerPropertyChanged();
root->layer_tree_impl()->property_trees()->needs_rebuild = true;
EmulateDrawingOneFrame(root);
// CASE 1: Setting the update rect should cause the corresponding damage to
// the surface, blurred based on the size of the child's background
// blur filter. Note that child1's render surface has a size of
// 206x208 due to contributions from grand_child1 and grand_child2.
ClearDamageForAllSurfaces(root);
root->SetUpdateRect(gfx::Rect(297, 297, 2, 2));
root->layer_tree_impl()->property_trees()->needs_rebuild = true;
EmulateDrawingOneFrame(root);
gfx::Rect root_damage_rect;
EXPECT_TRUE(GetRenderSurface(root)->damage_tracker()->GetDamageRectIfValid(
&root_damage_rect));
// Damage position on the surface should be a composition of the damage on
// the root and on child2. Damage on the root should be: position of
// update_rect (297, 297), but expanded by the blur outsets.
gfx::Rect expected_damage_rect = gfx::Rect(297, 297, 2, 2);
// 6px spread for a 2px blur.
expected_damage_rect.Inset(-6, -6, -6, -6);
EXPECT_EQ(expected_damage_rect.ToString(), root_damage_rect.ToString());
// CASE 2: Setting the update rect should cause the corresponding damage to
// the surface, blurred based on the size of the child's background
// blur filter. Since the damage extends to the right/bottom outside
// of the blurred layer, only the left/top should end up expanded.
ClearDamageForAllSurfaces(root);
root->SetUpdateRect(gfx::Rect(297, 297, 30, 30));
root->layer_tree_impl()->property_trees()->needs_rebuild = true;
EmulateDrawingOneFrame(root);
EXPECT_TRUE(GetRenderSurface(root)->damage_tracker()->GetDamageRectIfValid(
&root_damage_rect));
// Damage position on the surface should be a composition of the damage on
// the root and on child2. Damage on the root should be: position of
// update_rect (297, 297), but expanded on the left/top by the blur outsets.
expected_damage_rect = gfx::Rect(297, 297, 30, 30);
// 6px spread for a 2px blur.
expected_damage_rect.Inset(-6, -6, 0, 0);
EXPECT_EQ(expected_damage_rect.ToString(), root_damage_rect.ToString());
// CASE 3: Setting this update rect outside the blurred content_bounds of the
// blurred child1 will not cause it to be expanded.
ClearDamageForAllSurfaces(root);
root->SetUpdateRect(gfx::Rect(30, 30, 2, 2));
root->layer_tree_impl()->property_trees()->needs_rebuild = true;
EmulateDrawingOneFrame(root);
EXPECT_TRUE(GetRenderSurface(root)->damage_tracker()->GetDamageRectIfValid(
&root_damage_rect));
// Damage on the root should be: position of update_rect (30, 30), not
// expanded.
expected_damage_rect = gfx::Rect(30, 30, 2, 2);
EXPECT_EQ(expected_damage_rect.ToString(), root_damage_rect.ToString());
// CASE 4: Setting this update rect inside the blurred content_bounds but