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// Copyright 2016 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 "platform/graphics/CompositorMutableState.h"
#include "base/message_loop/message_loop.h"
#include "cc/test/fake_impl_task_runner_provider.h"
#include "cc/test/fake_layer_tree_host_impl.h"
#include "cc/test/fake_output_surface.h"
#include "cc/test/test_shared_bitmap_manager.h"
#include "cc/test/test_task_graph_runner.h"
#include "cc/trees/layer_tree_host_impl.h"
#include "cc/trees/layer_tree_impl.h"
#include "platform/graphics/CompositorMutableProperties.h"
#include "platform/graphics/CompositorMutableStateProvider.h"
#include "platform/graphics/CompositorMutation.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "wtf/OwnPtr.h"
namespace blink {
using cc::FakeImplTaskRunnerProvider;
using cc::FakeLayerTreeHostImpl;
using cc::FakeOutputSurface;
using cc::LayerImpl;
using cc::LayerTreeSettings;
using cc::OutputSurface;
using cc::TestTaskGraphRunner;
using cc::TestSharedBitmapManager;
class CompositorMutableStateTest : public testing::Test {
public:
CompositorMutableStateTest()
: m_outputSurface(FakeOutputSurface::Create3d())
{
LayerTreeSettings settings;
settings.layer_transforms_should_scale_layer_contents = true;
m_hostImpl.reset(new FakeLayerTreeHostImpl(settings, &m_taskRunnerProvider, &m_sharedBitmapManager, &m_taskGraphRunner));
m_hostImpl->SetVisible(true);
EXPECT_TRUE(m_hostImpl->InitializeRenderer(m_outputSurface.get()));
}
void SetLayerPropertiesForTesting(LayerImpl* layer)
{
layer->SetTransform(gfx::Transform());
layer->SetTransformOrigin(gfx::Point3F());
layer->SetPosition(gfx::PointF());
layer->SetBounds(gfx::Size(100, 100));
layer->SetShouldFlattenTransform(true);
layer->Set3dSortingContextId(0);
layer->SetForceRenderSurface(true);
layer->SetDrawsContent(true);
}
FakeLayerTreeHostImpl& hostImpl() { return *m_hostImpl; }
LayerImpl* rootLayer() { return m_hostImpl->active_tree()->root_layer(); }
private:
// The cc testing machinery has fairly deep dependency on having a main
// message loop (one example is the task runner provider). We construct one
// here so that it's installed in TLA and can be found by other cc classes.
base::MessageLoop m_messageLoop;
TestSharedBitmapManager m_sharedBitmapManager;
TestTaskGraphRunner m_taskGraphRunner;
FakeImplTaskRunnerProvider m_taskRunnerProvider;
scoped_ptr<OutputSurface> m_outputSurface;
scoped_ptr<FakeLayerTreeHostImpl> m_hostImpl;
};
TEST_F(CompositorMutableStateTest, NoMutableState)
{
// In this test, there are no layers with either an element id or mutable
// properties. We should not be able to get any mutable state.
scoped_ptr<LayerImpl> root = LayerImpl::Create(hostImpl().active_tree(), 42);
SetLayerPropertiesForTesting(root.get());
hostImpl().SetViewportSize(root->bounds());
hostImpl().active_tree()->SetRootLayer(std::move(root));
hostImpl().UpdateNumChildrenAndDrawPropertiesForActiveTree();
CompositorMutations mutations;
CompositorMutableStateProvider provider(hostImpl().active_tree(), &mutations);
OwnPtr<CompositorMutableState> state(provider.getMutableStateFor(42));
EXPECT_FALSE(state);
}
TEST_F(CompositorMutableStateTest, MutableStateNoMutableProperties)
{
// In this test, there is a layer with an element id, but no mutable
// properties. This should behave just as if we'd had no element id.
scoped_ptr<LayerImpl> root = LayerImpl::Create(hostImpl().active_tree(), 42);
SetLayerPropertiesForTesting(root.get());
root->SetElementId(42);
hostImpl().SetViewportSize(root->bounds());
hostImpl().active_tree()->SetRootLayer(std::move(root));
hostImpl().UpdateNumChildrenAndDrawPropertiesForActiveTree();
CompositorMutations mutations;
CompositorMutableStateProvider provider(hostImpl().active_tree(), &mutations);
OwnPtr<CompositorMutableState> state(provider.getMutableStateFor(42));
EXPECT_FALSE(state);
}
TEST_F(CompositorMutableStateTest, MutableStateMutableProperties)
{
// In this test, there is a layer with an element id and mutable properties.
// In this case, we should get a valid mutable state for this element id that
// has a real effect on the corresponding layer.
scoped_ptr<LayerImpl> root = LayerImpl::Create(hostImpl().active_tree(), 42);
scoped_ptr<LayerImpl> scopedLayer =
LayerImpl::Create(hostImpl().active_tree(), 11);
LayerImpl* layer = scopedLayer.get();
layer->SetScrollClipLayer(root->id());
root->AddChild(std::move(scopedLayer));
SetLayerPropertiesForTesting(layer);
layer->SetElementId(12);
root->SetElementId(layer->element_id());
root->SetMutableProperties(CompositorMutableProperty::kOpacity | CompositorMutableProperty::kTransform);
layer->SetMutableProperties(CompositorMutableProperty::kScrollLeft | CompositorMutableProperty::kScrollTop);
hostImpl().SetViewportSize(layer->bounds());
hostImpl().active_tree()->SetRootLayer(std::move(root));
hostImpl().UpdateNumChildrenAndDrawPropertiesForActiveTree();
CompositorMutations mutations;
CompositorMutableStateProvider provider(hostImpl().active_tree(), &mutations);
OwnPtr<CompositorMutableState> state(provider.getMutableStateFor(layer->element_id()));
EXPECT_TRUE(state.get());
EXPECT_EQ(1.0, rootLayer()->opacity());
EXPECT_EQ(gfx::Transform().ToString(), rootLayer()->transform().ToString());
EXPECT_EQ(0.0, layer->CurrentScrollOffset().x());
EXPECT_EQ(0.0, layer->CurrentScrollOffset().y());
gfx::Transform zero(0, 0, 0, 0, 0, 0);
state->setOpacity(0.5);
state->setTransform(zero.matrix());
state->setScrollLeft(1.0);
state->setScrollTop(1.0);
EXPECT_EQ(0.5, rootLayer()->opacity());
EXPECT_EQ(zero.ToString(), rootLayer()->transform().ToString());
EXPECT_EQ(1.0, layer->CurrentScrollOffset().x());
EXPECT_EQ(1.0, layer->CurrentScrollOffset().y());
// The corresponding mutation should reflect the changed values.
EXPECT_EQ(1ul, mutations.map.size());
const CompositorMutation& mutation = *mutations.map.find(layer->element_id())->value;
EXPECT_TRUE(mutation.isOpacityMutated());
EXPECT_TRUE(mutation.isTransformMutated());
EXPECT_TRUE(mutation.isScrollLeftMutated());
EXPECT_TRUE(mutation.isScrollTopMutated());
EXPECT_EQ(0.5, mutation.opacity());
EXPECT_EQ(zero.ToString(), gfx::Transform(mutation.transform()).ToString());
EXPECT_EQ(1.0, mutation.scrollLeft());
EXPECT_EQ(1.0, mutation.scrollTop());
}
} // namespace blink
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