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layer_tree_host_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.h"
#include <stddef.h>
#include <stdint.h>
#include <algorithm>
#include "base/auto_reset.h"
#include "base/location.h"
#include "base/memory/ptr_util.h"
#include "base/single_thread_task_runner.h"
#include "base/strings/stringprintf.h"
#include "base/synchronization/lock.h"
#include "base/threading/thread_task_runner_handle.h"
#include "cc/animation/timing_function.h"
#include "cc/input/scroll_elasticity_helper.h"
#include "cc/layers/content_layer_client.h"
#include "cc/layers/heads_up_display_layer.h"
#include "cc/layers/layer_impl.h"
#include "cc/layers/painted_scrollbar_layer.h"
#include "cc/layers/picture_layer.h"
#include "cc/layers/solid_color_layer.h"
#include "cc/layers/video_layer.h"
#include "cc/output/output_surface.h"
#include "cc/output/swap_promise.h"
#include "cc/quads/draw_quad.h"
#include "cc/quads/render_pass_draw_quad.h"
#include "cc/quads/tile_draw_quad.h"
#include "cc/resources/ui_resource_manager.h"
#include "cc/test/fake_content_layer_client.h"
#include "cc/test/fake_layer_tree_host_client.h"
#include "cc/test/fake_output_surface.h"
#include "cc/test/fake_painted_scrollbar_layer.h"
#include "cc/test/fake_picture_layer.h"
#include "cc/test/fake_picture_layer_impl.h"
#include "cc/test/fake_proxy.h"
#include "cc/test/fake_recording_source.h"
#include "cc/test/fake_scoped_ui_resource.h"
#include "cc/test/fake_video_frame_provider.h"
#include "cc/test/geometry_test_utils.h"
#include "cc/test/layer_test_common.h"
#include "cc/test/layer_tree_test.h"
#include "cc/test/push_properties_counting_layer.h"
#include "cc/test/push_properties_counting_layer_impl.h"
#include "cc/test/render_pass_test_utils.h"
#include "cc/test/skia_common.h"
#include "cc/test/test_web_graphics_context_3d.h"
#include "cc/trees/clip_node.h"
#include "cc/trees/effect_node.h"
#include "cc/trees/frame_rate_counter.h"
#include "cc/trees/layer_tree_host_common.h"
#include "cc/trees/layer_tree_host_impl.h"
#include "cc/trees/layer_tree_impl.h"
#include "cc/trees/scroll_node.h"
#include "cc/trees/single_thread_proxy.h"
#include "cc/trees/swap_promise_manager.h"
#include "cc/trees/transform_node.h"
#include "components/viz/common/frame_sinks/begin_frame_args.h"
#include "components/viz/common/quads/copy_output_request.h"
#include "components/viz/common/quads/copy_output_result.h"
#include "components/viz/test/begin_frame_args_test.h"
#include "components/viz/test/test_layer_tree_frame_sink.h"
#include "gpu/GLES2/gl2extchromium.h"
#include "testing/gmock/include/gmock/gmock.h"
#include "third_party/khronos/GLES2/gl2.h"
#include "third_party/khronos/GLES2/gl2ext.h"
#include "third_party/skia/include/core/SkPicture.h"
#include "third_party/skia/include/gpu/GrContext.h"
#include "ui/gfx/geometry/point_conversions.h"
#include "ui/gfx/geometry/size_conversions.h"
#include "ui/gfx/geometry/vector2d_conversions.h"
using testing::_;
using testing::AnyNumber;
using testing::AtLeast;
using testing::Mock;
namespace cc {
namespace {
class LayerTreeHostTest : public LayerTreeTest {};
class LayerTreeHostTestHasImplThreadTest : public LayerTreeHostTest {
public:
LayerTreeHostTestHasImplThreadTest() : single_threaded_(false) {}
void RunTest(CompositorMode mode) override {
single_threaded_ = mode == CompositorMode::SINGLE_THREADED;
LayerTreeHostTest::RunTest(mode);
}
void BeginTest() override {
EXPECT_EQ(single_threaded_, !HasImplThread());
EndTest();
}
void AfterTest() override { EXPECT_EQ(single_threaded_, !HasImplThread()); }
private:
bool single_threaded_;
};
SINGLE_AND_MULTI_THREAD_TEST_F(LayerTreeHostTestHasImplThreadTest);
class LayerTreeHostTestSetNeedsCommitInsideLayout : public LayerTreeHostTest {
protected:
void BeginTest() override { PostSetNeedsCommitToMainThread(); }
void UpdateLayerTreeHost() override {
// This shouldn't cause a second commit to happen.
layer_tree_host()->SetNeedsCommit();
}
void DidCommit() override {
EXPECT_EQ(1, layer_tree_host()->SourceFrameNumber());
EndTest();
}
void AfterTest() override {}
};
SINGLE_AND_MULTI_THREAD_TEST_F(LayerTreeHostTestSetNeedsCommitInsideLayout);
class LayerTreeHostTestFrameOrdering : public LayerTreeHostTest {
protected:
enum MainOrder : int {
MAIN_START = 1,
MAIN_LAYOUT,
MAIN_COMMIT_COMPLETE,
MAIN_DID_BEGIN_FRAME,
MAIN_END,
};
enum ImplOrder : int {
IMPL_START = 1,
IMPL_READY_TO_COMMIT,
IMPL_COMMIT,
IMPL_COMMIT_COMPLETE,
IMPL_ACTIVATE,
IMPL_DRAW,
IMPL_END,
};
template <typename T>
bool CheckStep(T next, T* var) {
int expected = next - 1;
EXPECT_EQ(expected, *var);
bool correct = expected == *var;
*var = next;
return correct;
}
void BeginTest() override { PostSetNeedsCommitToMainThread(); }
void UpdateLayerTreeHost() override {
EXPECT_TRUE(CheckStep(MAIN_LAYOUT, &main_));
}
void DidCommit() override {
EXPECT_TRUE(CheckStep(MAIN_COMMIT_COMPLETE, &main_));
}
void DidBeginMainFrame() override {
EXPECT_TRUE(CheckStep(MAIN_DID_BEGIN_FRAME, &main_));
}
void ReadyToCommitOnThread(LayerTreeHostImpl* impl) override {
EXPECT_TRUE(CheckStep(IMPL_READY_TO_COMMIT, &impl_));
}
void BeginCommitOnThread(LayerTreeHostImpl* impl) override {
EXPECT_TRUE(CheckStep(IMPL_COMMIT, &impl_));
}
void CommitCompleteOnThread(LayerTreeHostImpl* impl) override {
EXPECT_TRUE(CheckStep(IMPL_COMMIT_COMPLETE, &impl_));
}
void WillActivateTreeOnThread(LayerTreeHostImpl* impl) override {
EXPECT_TRUE(CheckStep(IMPL_ACTIVATE, &impl_));
}
void DrawLayersOnThread(LayerTreeHostImpl* impl) override {
EXPECT_TRUE(CheckStep(IMPL_DRAW, &impl_));
EndTest();
}
void AfterTest() override {
EXPECT_TRUE(CheckStep(MAIN_END, &main_));
EXPECT_TRUE(CheckStep(IMPL_END, &impl_));
}
MainOrder main_ = MAIN_START;
ImplOrder impl_ = IMPL_START;
};
SINGLE_AND_MULTI_THREAD_TEST_F(LayerTreeHostTestFrameOrdering);
class LayerTreeHostTestSetNeedsUpdateInsideLayout : public LayerTreeHostTest {
protected:
void BeginTest() override { PostSetNeedsCommitToMainThread(); }
void UpdateLayerTreeHost() override {
// This shouldn't cause a second commit to happen.
layer_tree_host()->SetNeedsUpdateLayers();
}
void DidCommit() override {
EXPECT_EQ(1, layer_tree_host()->SourceFrameNumber());
EndTest();
}
void AfterTest() override {}
};
SINGLE_AND_MULTI_THREAD_TEST_F(LayerTreeHostTestSetNeedsUpdateInsideLayout);
// Test if the LTHI receives ReadyToActivate notifications from the TileManager
// when no raster tasks get scheduled.
class LayerTreeHostTestReadyToActivateEmpty : public LayerTreeHostTest {
public:
LayerTreeHostTestReadyToActivateEmpty()
: did_notify_ready_to_activate_(false),
all_tiles_required_for_activation_are_ready_to_draw_(false),
required_for_activation_count_(0) {}
void BeginTest() override { PostSetNeedsCommitToMainThread(); }
void CommitCompleteOnThread(LayerTreeHostImpl* impl) override {
const std::vector<PictureLayerImpl*>& layers =
impl->sync_tree()->picture_layers();
required_for_activation_count_ = 0;
for (auto* layer : layers) {
FakePictureLayerImpl* fake_layer =
static_cast<FakePictureLayerImpl*>(layer);
required_for_activation_count_ +=
fake_layer->CountTilesRequiredForActivation();
}
}
void NotifyReadyToActivateOnThread(LayerTreeHostImpl* impl) override {
did_notify_ready_to_activate_ = true;
all_tiles_required_for_activation_are_ready_to_draw_ =
impl->tile_manager()->IsReadyToActivate();
EndTest();
}
void AfterTest() override {
EXPECT_TRUE(did_notify_ready_to_activate_);
EXPECT_TRUE(all_tiles_required_for_activation_are_ready_to_draw_);
EXPECT_EQ(size_t(0), required_for_activation_count_);
}
protected:
bool did_notify_ready_to_activate_;
bool all_tiles_required_for_activation_are_ready_to_draw_;
size_t required_for_activation_count_;
};
SINGLE_AND_MULTI_THREAD_TEST_F(LayerTreeHostTestReadyToActivateEmpty);
// Test if the LTHI receives ReadyToActivate notifications from the TileManager
// when some raster tasks flagged as REQUIRED_FOR_ACTIVATION got scheduled.
class LayerTreeHostTestReadyToActivateNonEmpty
: public LayerTreeHostTestReadyToActivateEmpty {
public:
void SetupTree() override {
client_.set_fill_with_nonsolid_color(true);
scoped_refptr<FakePictureLayer> root_layer =
FakePictureLayer::Create(&client_);
root_layer->SetBounds(gfx::Size(1024, 1024));
root_layer->SetIsDrawable(true);
layer_tree_host()->SetRootLayer(root_layer);
LayerTreeHostTest::SetupTree();
client_.set_bounds(root_layer->bounds());
}
void AfterTest() override {
EXPECT_TRUE(did_notify_ready_to_activate_);
EXPECT_TRUE(all_tiles_required_for_activation_are_ready_to_draw_);
EXPECT_LE(size_t(1), required_for_activation_count_);
}
private:
FakeContentLayerClient client_;
};
// No single thread test because the commit goes directly to the active tree in
// single thread mode, so notify ready to activate is skipped.
MULTI_THREAD_TEST_F(LayerTreeHostTestReadyToActivateNonEmpty);
// Test if the LTHI receives ReadyToDraw notifications from the TileManager when
// no raster tasks get scheduled.
class LayerTreeHostTestReadyToDrawEmpty : public LayerTreeHostTest {
public:
LayerTreeHostTestReadyToDrawEmpty()
: did_notify_ready_to_draw_(false),
all_tiles_required_for_draw_are_ready_to_draw_(false),
required_for_draw_count_(0) {}
void BeginTest() override { PostSetNeedsCommitToMainThread(); }
void NotifyReadyToDrawOnThread(LayerTreeHostImpl* impl) override {
did_notify_ready_to_draw_ = true;
const std::vector<PictureLayerImpl*>& layers =
impl->active_tree()->picture_layers();
all_tiles_required_for_draw_are_ready_to_draw_ =
impl->tile_manager()->IsReadyToDraw();
for (auto* layer : layers) {
FakePictureLayerImpl* fake_layer =
static_cast<FakePictureLayerImpl*>(layer);
required_for_draw_count_ += fake_layer->CountTilesRequiredForDraw();
}
EndTest();
}
void AfterTest() override {
EXPECT_TRUE(did_notify_ready_to_draw_);
EXPECT_TRUE(all_tiles_required_for_draw_are_ready_to_draw_);
EXPECT_EQ(size_t(0), required_for_draw_count_);
}
protected:
bool did_notify_ready_to_draw_;
bool all_tiles_required_for_draw_are_ready_to_draw_;
size_t required_for_draw_count_;
};
SINGLE_AND_MULTI_THREAD_TEST_F(LayerTreeHostTestReadyToDrawEmpty);
// Test if the LTHI receives ReadyToDraw notifications from the TileManager when
// some raster tasks flagged as REQUIRED_FOR_DRAW got scheduled.
class LayerTreeHostTestReadyToDrawNonEmpty
: public LayerTreeHostTestReadyToDrawEmpty {
public:
void SetupTree() override {
client_.set_fill_with_nonsolid_color(true);
scoped_refptr<FakePictureLayer> root_layer =
FakePictureLayer::Create(&client_);
root_layer->SetBounds(gfx::Size(1024, 1024));
root_layer->SetIsDrawable(true);
layer_tree_host()->SetRootLayer(root_layer);
LayerTreeHostTest::SetupTree();
client_.set_bounds(root_layer->bounds());
}
void AfterTest() override {
EXPECT_TRUE(did_notify_ready_to_draw_);
EXPECT_TRUE(all_tiles_required_for_draw_are_ready_to_draw_);
EXPECT_LE(size_t(1), required_for_draw_count_);
}
private:
FakeContentLayerClient client_;
};
// Note: With this test setup, we only get tiles flagged as REQUIRED_FOR_DRAW in
// single threaded mode.
SINGLE_THREAD_TEST_F(LayerTreeHostTestReadyToDrawNonEmpty);
// This tests if we get the READY_TO_DRAW signal and draw if we become invisible
// and then become visible again.
class LayerTreeHostTestReadyToDrawVisibility : public LayerTreeHostTest {
public:
LayerTreeHostTestReadyToDrawVisibility()
: LayerTreeHostTest(),
toggled_visibility_(false),
did_notify_ready_to_draw_(false),
did_draw_(false) {}
void BeginTest() override { PostSetNeedsCommitToMainThread(); }
void SetupTree() override {
client_.set_fill_with_nonsolid_color(true);
scoped_refptr<FakePictureLayer> root_layer =
FakePictureLayer::Create(&client_);
root_layer->SetBounds(gfx::Size(1024, 1024));
client_.set_bounds(root_layer->bounds());
root_layer->SetIsDrawable(true);
layer_tree_host()->SetRootLayer(root_layer);
LayerTreeHostTest::SetupTree();
}
void CommitCompleteOnThread(LayerTreeHostImpl* host_impl) override {
if (!toggled_visibility_) {
{
DebugScopedSetMainThread main(task_runner_provider());
layer_tree_host()->SetVisible(false);
}
toggled_visibility_ = true;
EXPECT_FALSE(host_impl->visible());
}
}
void NotifyReadyToDrawOnThread(LayerTreeHostImpl* host_impl) override {
// Sometimes the worker thread posts NotifyReadyToDraw in the extremely
// short duration of time between PrepareTiles and SetVisible(false) so we
// might get two NotifyReadyToDraw signals for this test.
did_notify_ready_to_draw_ = true;
}
void DrawLayersOnThread(LayerTreeHostImpl* host_impl) override {
EXPECT_FALSE(did_draw_);
did_draw_ = true;
EndTest();
}
void DidFinishImplFrameOnThread(LayerTreeHostImpl* host_impl) override {
if (!host_impl->visible()) {
{
DebugScopedSetMainThread main(task_runner_provider());
layer_tree_host()->SetVisible(true);
}
EXPECT_TRUE(host_impl->visible());
}
}
void AfterTest() override {
EXPECT_TRUE(did_notify_ready_to_draw_);
EXPECT_TRUE(did_draw_);
}
private:
FakeContentLayerClient client_;
bool toggled_visibility_;
bool did_notify_ready_to_draw_;
bool did_draw_;
};
// Note: With this test setup, we only get tiles flagged as REQUIRED_FOR_DRAW in
// single threaded mode.
SINGLE_THREAD_TEST_F(LayerTreeHostTestReadyToDrawVisibility);
class LayerTreeHostContextCacheTest : public LayerTreeHostTest {
public:
std::unique_ptr<viz::TestLayerTreeFrameSink> CreateLayerTreeFrameSink(
const viz::RendererSettings& renderer_settings,
double refresh_rate,
scoped_refptr<viz::ContextProvider> compositor_context_provider,
scoped_refptr<viz::ContextProvider> worker_context_provider) override {
// Create the main viz::ContextProvider with a MockContextSupport.
auto main_support = std::make_unique<MockContextSupport>();
mock_main_context_support_ = main_support.get();
auto test_main_context_provider = TestContextProvider::Create(
TestWebGraphicsContext3D::Create(), std::move(main_support));
// Create the main viz::ContextProvider with a MockContextSupport.
auto worker_support = std::make_unique<MockContextSupport>();
mock_worker_context_support_ = worker_support.get();
auto test_worker_context_provider = TestContextProvider::Create(
TestWebGraphicsContext3D::Create(), std::move(worker_support));
test_worker_context_provider->BindToCurrentThread();
// At init, visibility is set to true, so SetAggressivelyFreeResources will
// be disabled.
EXPECT_CALL(*mock_main_context_support_,
SetAggressivelyFreeResources(false));
EXPECT_CALL(*mock_worker_context_support_,
SetAggressivelyFreeResources(false));
return LayerTreeHostTest::CreateLayerTreeFrameSink(
renderer_settings, refresh_rate, std::move(test_main_context_provider),
std::move(test_worker_context_provider));
}
void InitializeSettings(LayerTreeSettings* settings) override {
settings->gpu_rasterization_forced = true;
}
void BeginTest() override {}
void AfterTest() override {}
protected:
class MockContextSupport : public TestContextSupport {
public:
MockContextSupport() {}
MOCK_METHOD1(SetAggressivelyFreeResources,
void(bool aggressively_free_resources));
};
MockContextSupport* mock_main_context_support_;
MockContextSupport* mock_worker_context_support_;
};
// Test if the LTH successfully frees resources on the main/worker
// ContextSupport when visibility is set to false.
class LayerTreeHostFreesContextResourcesOnInvisible
: public LayerTreeHostContextCacheTest {
public:
void InitializedRendererOnThread(LayerTreeHostImpl* host_impl,
bool success) override {
// Ensure that our initialization expectations have completed.
Mock::VerifyAndClearExpectations(mock_main_context_support_);
Mock::VerifyAndClearExpectations(mock_worker_context_support_);
// Update visibility and make sure resources are freed.
EXPECT_CALL(*mock_main_context_support_,
SetAggressivelyFreeResources(true));
EXPECT_CALL(*mock_worker_context_support_,
SetAggressivelyFreeResources(true))
.WillOnce(testing::Invoke([this](bool is_visible) { EndTest(); }));
PostSetVisibleToMainThread(false);
}
};
SINGLE_AND_MULTI_THREAD_TEST_F(LayerTreeHostFreesContextResourcesOnInvisible);
// Test if the LTH successfully frees worker context resources when the hard
// memory limit is set to zero.
class LayerTreeHostFreesWorkerContextResourcesOnZeroMemoryLimit
: public LayerTreeHostContextCacheTest {
public:
void InitializedRendererOnThread(LayerTreeHostImpl* host_impl,
bool success) override {
// Ensure that our initialization expectations have completed.
Mock::VerifyAndClearExpectations(mock_worker_context_support_);
// Worker context support should start freeing resources when hard memory
// limit is zeroed.
EXPECT_CALL(*mock_worker_context_support_,
SetAggressivelyFreeResources(true))
.WillOnce(testing::Invoke([this](bool is_visible) {
// Main context is unchanged. It will start freeing on destruction.
EXPECT_CALL(*mock_main_context_support_,
SetAggressivelyFreeResources(true));
EndTest();
}));
ManagedMemoryPolicy zero_policy(
0, gpu::MemoryAllocation::CUTOFF_ALLOW_NOTHING, 0);
host_impl->SetMemoryPolicy(zero_policy);
}
};
SINGLE_AND_MULTI_THREAD_TEST_F(
LayerTreeHostFreesWorkerContextResourcesOnZeroMemoryLimit);
// Test if the LTH successfully frees worker context resources when hard memory
// limit is set to zero while using a synchronous compositor (Android WebView).
class LayerTreeHostFreesWorkerContextResourcesOnZeroMemoryLimitSynchronous
: public LayerTreeHostFreesWorkerContextResourcesOnZeroMemoryLimit {
public:
void InitializeSettings(LayerTreeSettings* settings) override {
LayerTreeHostContextCacheTest::InitializeSettings(settings);
settings->using_synchronous_renderer_compositor = true;
}
};
SINGLE_AND_MULTI_THREAD_TEST_F(
LayerTreeHostFreesWorkerContextResourcesOnZeroMemoryLimitSynchronous);
// Test if the LTH successfully frees main and worker resources when the
// OutputSurface is destroyed.
class LayerTreeHostFreeContextResourcesOnDestroy
: public LayerTreeHostContextCacheTest {
public:
void WillBeginImplFrameOnThread(LayerTreeHostImpl* host_impl,
const viz::BeginFrameArgs& args) override {
// Ensure that our initialization expectations have completed.
Mock::VerifyAndClearExpectations(mock_main_context_support_);
Mock::VerifyAndClearExpectations(mock_worker_context_support_);
// We leave the LTHI visible, so it start freeing resources on destruction.
EXPECT_CALL(*mock_worker_context_support_,
SetAggressivelyFreeResources(true));
EXPECT_CALL(*mock_main_context_support_,
SetAggressivelyFreeResources(true));
EndTest();
}
};
SINGLE_AND_MULTI_THREAD_TEST_F(LayerTreeHostFreeContextResourcesOnDestroy);
// Test if the LTH successfully frees and stops freeing context resources
// when the LayerTreeFrameSink is lost and recreated.
class LayerTreeHostCacheBehaviorOnLayerTreeFrameSinkRecreated
: public LayerTreeHostContextCacheTest {
public:
void WillBeginImplFrameOnThread(LayerTreeHostImpl* host_impl,
const viz::BeginFrameArgs& args) override {
// This code is run once, to trigger recreation of our LayerTreeFrameSink.
if (test_state_ != TestState::INIT)
return;
// Ensure that our initialization expectations have completed.
Mock::VerifyAndClearExpectations(mock_main_context_support_);
Mock::VerifyAndClearExpectations(mock_worker_context_support_);
// LayerTreeFrameSink lost expectations.
EXPECT_CALL(*mock_worker_context_support_,
SetAggressivelyFreeResources(true));
EXPECT_CALL(*mock_main_context_support_,
SetAggressivelyFreeResources(true));
host_impl->DidLoseLayerTreeFrameSink();
test_state_ = TestState::RECREATED;
}
void InitializedRendererOnThread(LayerTreeHostImpl* host_impl,
bool success) override {
// This is run after we have recreated our LayerTreeFrameSink.
if (test_state_ != TestState::RECREATED)
return;
// Ensure that our expectations have completed.
Mock::VerifyAndClearExpectations(mock_main_context_support_);
Mock::VerifyAndClearExpectations(mock_worker_context_support_);
// Destruction exptectations.
EXPECT_CALL(*mock_worker_context_support_,
SetAggressivelyFreeResources(true));
EXPECT_CALL(*mock_main_context_support_,
SetAggressivelyFreeResources(true));
EndTest();
test_state_ = TestState::DONE;
}
private:
enum class TestState { INIT, RECREATED, DONE };
TestState test_state_ = TestState::INIT;
};
SINGLE_AND_MULTI_THREAD_TEST_F(
LayerTreeHostCacheBehaviorOnLayerTreeFrameSinkRecreated);
// Two setNeedsCommits in a row should lead to at least 1 commit and at least 1
// draw with frame 0.
class LayerTreeHostTestSetNeedsCommit1 : public LayerTreeHostTest {
public:
LayerTreeHostTestSetNeedsCommit1() : num_commits_(0), num_draws_(0) {}
void BeginTest() override {
PostSetNeedsCommitToMainThread();
PostSetNeedsCommitToMainThread();
}
void DrawLayersOnThread(LayerTreeHostImpl* impl) override {
num_draws_++;
if (!impl->active_tree()->source_frame_number())
EndTest();
}
void CommitCompleteOnThread(LayerTreeHostImpl* impl) override {
num_commits_++;
}
void AfterTest() override {
EXPECT_LE(1, num_commits_);
EXPECT_LE(1, num_draws_);
}
private:
int num_commits_;
int num_draws_;
};
SINGLE_AND_MULTI_THREAD_TEST_F(LayerTreeHostTestSetNeedsCommit1);
// A SetNeedsCommit should lead to 1 commit. Issuing a second commit after that
// first committed frame draws should lead to another commit.
class LayerTreeHostTestSetNeedsCommit2 : public LayerTreeHostTest {
public:
LayerTreeHostTestSetNeedsCommit2() : num_commits_(0), num_draws_(0) {}
void BeginTest() override { PostSetNeedsCommitToMainThread(); }
void DrawLayersOnThread(LayerTreeHostImpl* impl) override { ++num_draws_; }
void CommitCompleteOnThread(LayerTreeHostImpl* impl) override {
++num_commits_;
switch (num_commits_) {
case 1:
PostSetNeedsCommitToMainThread();
break;
case 2:
EndTest();
break;
default:
NOTREACHED();
}
}
void AfterTest() override {
EXPECT_EQ(2, num_commits_);
EXPECT_LE(1, num_draws_);
}
private:
int num_commits_;
int num_draws_;
};
MULTI_THREAD_TEST_F(LayerTreeHostTestSetNeedsCommit2);
// Verify that we pass property values in PushPropertiesTo.
class LayerTreeHostTestPushPropertiesTo : public LayerTreeHostTest {
protected:
void SetupTree() override {
scoped_refptr<Layer> root = Layer::Create();
root->SetBounds(gfx::Size(10, 10));
layer_tree_host()->SetRootLayer(root);
LayerTreeHostTest::SetupTree();
}
enum Properties {
STARTUP,
BOUNDS,
HIDE_LAYER_AND_SUBTREE,
DRAWS_CONTENT,
DONE,
};
void BeginTest() override {
index_ = STARTUP;
PostSetNeedsCommitToMainThread();
}
void DrawLayersOnThread(LayerTreeHostImpl* impl) override {
VerifyAfterValues(impl->active_tree()->root_layer_for_testing());
}
void DidCommitAndDrawFrame() override {
SetBeforeValues(layer_tree_host()->root_layer());
VerifyBeforeValues(layer_tree_host()->root_layer());
++index_;
if (index_ == DONE) {
EndTest();
return;
}
SetAfterValues(layer_tree_host()->root_layer());
}
void AfterTest() override {}
void VerifyBeforeValues(Layer* layer) {
EXPECT_EQ(gfx::Size(10, 10).ToString(), layer->bounds().ToString());
EXPECT_FALSE(layer->hide_layer_and_subtree());
EXPECT_FALSE(layer->DrawsContent());
}
void SetBeforeValues(Layer* layer) {
layer->SetBounds(gfx::Size(10, 10));
layer->SetHideLayerAndSubtree(false);
layer->SetIsDrawable(false);
}
void VerifyAfterValues(LayerImpl* layer) {
EffectTree& tree = layer->layer_tree_impl()->property_trees()->effect_tree;
EffectNode* node = tree.Node(layer->effect_tree_index());
switch (static_cast<Properties>(index_)) {
case STARTUP:
case DONE:
break;
case BOUNDS:
EXPECT_EQ(gfx::Size(20, 20).ToString(), layer->bounds().ToString());
break;
case HIDE_LAYER_AND_SUBTREE:
EXPECT_EQ(tree.EffectiveOpacity(node), 0.f);
break;
case DRAWS_CONTENT:
EXPECT_TRUE(layer->DrawsContent());
break;
}
}
void SetAfterValues(Layer* layer) {
switch (static_cast<Properties>(index_)) {
case STARTUP:
case DONE:
break;
case BOUNDS:
layer->SetBounds(gfx::Size(20, 20));
break;
case HIDE_LAYER_AND_SUBTREE:
layer->SetHideLayerAndSubtree(true);
break;
case DRAWS_CONTENT:
layer->SetIsDrawable(true);
break;
}
}
int index_;
};
SINGLE_AND_MULTI_THREAD_TEST_F(LayerTreeHostTestPushPropertiesTo);
class LayerTreeHostTestPushNodeOwnerToNodeIdMap : public LayerTreeHostTest {
protected:
void SetupTree() override {
root_ = Layer::Create();
child_ = Layer::Create();
root_->AddChild(child_);
layer_tree_host()->SetRootLayer(root_);
LayerTreeHostTest::SetupTree();
}
void BeginTest() override { PostSetNeedsCommitToMainThread(); }
void DidCommit() override {
switch (layer_tree_host()->SourceFrameNumber()) {
case 1:
// child_ should create transform, effect node.
child_->SetForceRenderSurfaceForTesting(true);
break;
case 2:
// child_ should create a scroll node.
child_->SetScrollable(gfx::Size(1, 1));
break;
case 3:
// child_ should create a clip node.
child_->SetMasksToBounds(true);
break;
case 4:
// child_ should only create the scroll-related nodes.
child_->SetMasksToBounds(false);
child_->SetForceRenderSurfaceForTesting(false);
// Should have no effect because empty bounds do not prevent scrolling.
child_->SetScrollable(gfx::Size(0, 0));
}
}
void CommitCompleteOnThread(LayerTreeHostImpl* impl) override {
PropertyTrees* property_trees = impl->sync_tree()->property_trees();
const TransformNode* root_transform_node =
property_trees->transform_tree.Node(root_->transform_tree_index());
const TransformNode* child_transform_node =
property_trees->transform_tree.Node(child_->transform_tree_index());
const EffectNode* root_effect_node =
property_trees->effect_tree.Node(root_->effect_tree_index());
const EffectNode* child_effect_node =
property_trees->effect_tree.Node(child_->effect_tree_index());
const ClipNode* root_clip_node =
property_trees->clip_tree.Node(root_->clip_tree_index());
const ClipNode* child_clip_node =
property_trees->clip_tree.Node(child_->clip_tree_index());
const ScrollNode* root_scroll_node =
property_trees->scroll_tree.Node(root_->scroll_tree_index());
const ScrollNode* child_scroll_node =
property_trees->scroll_tree.Node(child_->scroll_tree_index());
switch (impl->sync_tree()->source_frame_number()) {
case 0:
// root_ should create transform, scroll and effect tree nodes but not
// a clip node.
EXPECT_NE(nullptr, root_transform_node);
EXPECT_NE(nullptr, root_effect_node);
EXPECT_NE(nullptr, root_scroll_node);
EXPECT_NE(nullptr, root_clip_node);
EXPECT_EQ(root_transform_node, child_transform_node);
EXPECT_EQ(child_effect_node, root_effect_node);
EXPECT_EQ(root_clip_node, child_clip_node);
EXPECT_EQ(root_scroll_node, child_scroll_node);
break;
case 1:
// child_ should create a transfrom, effect nodes but not a scroll, clip
// node.
EXPECT_NE(root_transform_node, child_transform_node);
EXPECT_NE(child_effect_node, root_effect_node);
EXPECT_EQ(root_clip_node, child_clip_node);
EXPECT_EQ(root_scroll_node, child_scroll_node);
break;
case 2:
// child_ should create a scroll node.
EXPECT_NE(root_scroll_node, child_scroll_node);
break;
case 3:
// child_ should create a clip node.
EXPECT_NE(root_clip_node, child_clip_node);
break;
case 4:
// child_ should only create the scroll-related nodes.
EXPECT_EQ(child_transform_node->id, child_scroll_node->transform_id);
EXPECT_EQ(child_effect_node, root_effect_node);
EXPECT_EQ(root_clip_node, child_clip_node);
EXPECT_NE(root_scroll_node, child_scroll_node);
EndTest();
break;
}
}
void AfterTest() override {}
private:
scoped_refptr<Layer> root_;
scoped_refptr<Layer> child_;
};
SINGLE_AND_MULTI_THREAD_TEST_F(LayerTreeHostTestPushNodeOwnerToNodeIdMap);
class LayerTreeHostTestPushElementIdToNodeIdMap : public LayerTreeHostTest {
protected:
void SetupTree() override {
root_ = Layer::Create();
child_ = Layer::Create();
root_->AddChild(child_);
layer_tree_host()->SetRootLayer(root_);
LayerTreeHostTest::SetupTree();
}
void BeginTest() override { PostSetNeedsCommitToMainThread(); }
void DidCommit() override {
switch (layer_tree_host()->SourceFrameNumber()) {
case 1:
child_->SetForceRenderSurfaceForTesting(true);
child_->AddMainThreadScrollingReasons(
MainThreadScrollingReason::kHasBackgroundAttachmentFixedObjects);
break;
case 2:
child_->SetForceRenderSurfaceForTesting(false);
child_->ClearMainThreadScrollingReasons(
MainThreadScrollingReason::kHasBackgroundAttachmentFixedObjects);
break;
}
}
void CommitCompleteOnThread(LayerTreeHostImpl* impl) override {
PropertyTrees* property_trees = impl->sync_tree()->property_trees();
LayerImpl* child_impl_ = impl->sync_tree()->LayerById(child_->id());
switch (impl->sync_tree()->source_frame_number()) {
case 0:
EXPECT_EQ(2U, child_impl_->layer_tree_impl()
->property_trees()
->transform_tree.size());
EXPECT_EQ(2U, child_impl_->layer_tree_impl()
->property_trees()
->effect_tree.size());
EXPECT_EQ(2U, child_impl_->layer_tree_impl()
->property_trees()
->scroll_tree.size());
EXPECT_TRUE(property_trees->element_id_to_transform_node_index.find(
child_->element_id()) ==
property_trees->element_id_to_transform_node_index.end());
EXPECT_TRUE(property_trees->element_id_to_effect_node_index.find(
child_->element_id()) ==
property_trees->element_id_to_effect_node_index.end());
EXPECT_TRUE(property_trees->element_id_to_scroll_node_index.find(
child_->element_id()) ==
property_trees->element_id_to_scroll_node_index.end());
break;
case 1:
EXPECT_EQ(3U, child_impl_->layer_tree_impl()
->property_trees()
->transform_tree.size());
EXPECT_EQ(3U, child_impl_->layer_tree_impl()
->property_trees()
->effect_tree.size());
EXPECT_EQ(3U, child_impl_->layer_tree_impl()
->property_trees()
->scroll_tree.size());
EXPECT_EQ(
2, property_trees
->element_id_to_transform_node_index[child_->element_id()]);
EXPECT_EQ(2,
property_trees
->element_id_to_effect_node_index[child_->element_id()]);
EXPECT_EQ(2,
property_trees
->element_id_to_scroll_node_index[child_->element_id()]);
break;
case 2:
EXPECT_EQ(2U, child_impl_->layer_tree_impl()
->property_trees()
->transform_tree.size());
EXPECT_EQ(2U, child_impl_->layer_tree_impl()
->property_trees()
->effect_tree.size());
EXPECT_TRUE(property_trees->element_id_to_transform_node_index.find(
child_->element_id()) ==
property_trees->element_id_to_transform_node_index.end());
EXPECT_TRUE(property_trees->element_id_to_effect_node_index.find(
child_->element_id()) ==
property_trees->element_id_to_effect_node_index.end());
EXPECT_TRUE(property_trees->element_id_to_scroll_node_index.find(
child_->element_id()) ==
property_trees->element_id_to_scroll_node_index.end());
break;
}
EndTest();
}
void AfterTest() override {}
private:
scoped_refptr<Layer> root_;
scoped_refptr<Layer> child_;
};
// Validates that, for a layer with a compositor element id set on it, mappings
// from compositor element id to transform/effect node indexes are created as