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- // Copyright 2013 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/layers/ui_resource_layer.h"
- #include "base/threading/thread_task_runner_handle.h"
- #include "cc/animation/animation_host.h"
- #include "cc/resources/scoped_ui_resource.h"
- #include "cc/test/fake_layer_tree_host.h"
- #include "cc/test/layer_tree_impl_test_base.h"
- #include "cc/test/stub_layer_tree_host_single_thread_client.h"
- #include "cc/trees/single_thread_proxy.h"
- #include "testing/gmock/include/gmock/gmock.h"
- #include "testing/gtest/include/gtest/gtest.h"
- #include "third_party/skia/include/core/SkBitmap.h"
- using ::testing::Mock;
- using ::testing::_;
- using ::testing::AtLeast;
- using ::testing::AnyNumber;
- namespace cc {
- namespace {
- class TestUIResourceLayer : public UIResourceLayer {
- public:
- static scoped_refptr<TestUIResourceLayer> Create() {
- return base::WrapRefCounted(new TestUIResourceLayer());
- }
- using UIResourceLayer::resource_id;
- using UIResourceLayer::HasDrawableContent;
- protected:
- TestUIResourceLayer() : UIResourceLayer() { SetIsDrawable(true); }
- ~TestUIResourceLayer() override = default;
- };
- class UIResourceLayerTest : public testing::Test {
- protected:
- void TearDown() override {
- Mock::VerifyAndClearExpectations(layer_tree_host());
- }
- FakeLayerTreeHost* layer_tree_host() { return layer_impl_test_.host(); }
- private:
- LayerTreeImplTestBase layer_impl_test_;
- };
- TEST_F(UIResourceLayerTest, SetBitmap) {
- scoped_refptr<UIResourceLayer> test_layer = TestUIResourceLayer::Create();
- ASSERT_TRUE(test_layer.get());
- test_layer->SetBounds(gfx::Size(100, 100));
- layer_tree_host()->SetRootLayer(test_layer);
- Mock::VerifyAndClearExpectations(layer_tree_host());
- EXPECT_EQ(test_layer->layer_tree_host(), layer_tree_host());
- test_layer->Update();
- EXPECT_FALSE(test_layer->draws_content());
- SkBitmap bitmap;
- bitmap.allocN32Pixels(10, 10);
- bitmap.setImmutable();
- test_layer->SetBitmap(bitmap);
- test_layer->Update();
- EXPECT_TRUE(test_layer->draws_content());
- }
- TEST_F(UIResourceLayerTest, SetUIResourceId) {
- scoped_refptr<TestUIResourceLayer> test_layer = TestUIResourceLayer::Create();
- ASSERT_TRUE(test_layer.get());
- test_layer->SetBounds(gfx::Size(100, 100));
- layer_tree_host()->SetRootLayer(test_layer);
- Mock::VerifyAndClearExpectations(layer_tree_host());
- EXPECT_EQ(test_layer->layer_tree_host(), layer_tree_host());
- test_layer->Update();
- EXPECT_FALSE(test_layer->draws_content());
- bool is_opaque = false;
- std::unique_ptr<ScopedUIResource> resource =
- ScopedUIResource::Create(layer_tree_host()->GetUIResourceManager(),
- UIResourceBitmap(gfx::Size(10, 10), is_opaque));
- test_layer->SetUIResourceId(resource->id());
- test_layer->Update();
- EXPECT_TRUE(test_layer->draws_content());
- // ID is preserved even when you set ID first and attach it to the tree.
- layer_tree_host()->SetRootLayer(nullptr);
- std::unique_ptr<ScopedUIResource> shared_resource =
- ScopedUIResource::Create(layer_tree_host()->GetUIResourceManager(),
- UIResourceBitmap(gfx::Size(5, 5), is_opaque));
- test_layer->SetUIResourceId(shared_resource->id());
- layer_tree_host()->SetRootLayer(test_layer);
- EXPECT_EQ(shared_resource->id(), test_layer->resource_id());
- EXPECT_TRUE(test_layer->draws_content());
- }
- TEST_F(UIResourceLayerTest, BitmapClearedOnSetUIResourceId) {
- scoped_refptr<TestUIResourceLayer> test_layer = TestUIResourceLayer::Create();
- ASSERT_TRUE(test_layer.get());
- test_layer->SetBounds(gfx::Size(100, 100));
- EXPECT_FALSE(test_layer->HasDrawableContent());
- SkBitmap bitmap;
- bitmap.allocN32Pixels(10, 10);
- bitmap.setImmutable();
- ASSERT_FALSE(bitmap.isNull());
- ASSERT_TRUE(bitmap.pixelRef()->unique());
- // Without a layer tree, the only additional reference is in UIResourceLayer.
- test_layer->SetBitmap(bitmap);
- ASSERT_FALSE(bitmap.pixelRef()->unique());
- // Also, there's no drawable content due to the lack of a LTH.
- EXPECT_FALSE(test_layer->HasDrawableContent());
- test_layer->SetUIResourceId(0);
- EXPECT_TRUE(bitmap.pixelRef()->unique());
- EXPECT_FALSE(test_layer->HasDrawableContent());
- // Add to a layer tree; now the UIResourceManager holds onto a ref
- // indefinitely.
- {
- LayerTreeImplTestBase impl;
- impl.host()->SetRootLayer(test_layer);
- test_layer->SetBitmap(bitmap);
- EXPECT_FALSE(bitmap.pixelRef()->unique());
- EXPECT_TRUE(test_layer->HasDrawableContent());
- test_layer->SetUIResourceId(0);
- EXPECT_FALSE(bitmap.pixelRef()->unique());
- EXPECT_FALSE(test_layer->HasDrawableContent());
- }
- // After the layer tree/resource manager are destroyed, refs are back to 1.
- test_layer->SetUIResourceId(0);
- EXPECT_TRUE(bitmap.pixelRef()->unique());
- EXPECT_FALSE(test_layer->HasDrawableContent());
- }
- TEST_F(UIResourceLayerTest, SharedBitmap) {
- SkBitmap bitmap;
- bitmap.allocN32Pixels(10, 10);
- bitmap.setImmutable();
- // The SkPixelRef is what's important, not the SkBitmap itself.
- SkBitmap bitmap_copy = bitmap;
- scoped_refptr<TestUIResourceLayer> layer1 = TestUIResourceLayer::Create();
- layer_tree_host()->SetRootLayer(layer1);
- layer1->SetBitmap(bitmap);
- bitmap.reset();
- layer1->Update();
- EXPECT_TRUE(layer1->draws_content());
- const auto resource_id = layer1->resource_id();
- // Second layer, same LTH. Resource is shared (has same ID).
- scoped_refptr<TestUIResourceLayer> layer2 = TestUIResourceLayer::Create();
- layer_tree_host()->SetRootLayer(layer2);
- layer2->SetBitmap(bitmap_copy);
- layer2->Update();
- EXPECT_TRUE(layer2->draws_content());
- EXPECT_EQ(resource_id, layer2->resource_id());
- // Change bitmap, different resource id.
- SkBitmap other_bitmap;
- other_bitmap.allocN32Pixels(12, 12);
- other_bitmap.setImmutable();
- layer2->SetBitmap(other_bitmap);
- EXPECT_NE(resource_id, layer2->resource_id());
- // Switch layer to different LTH. ID is in a new namespace (LTH), so it may
- // still be the same. We can make sure it's using the same shared bitmap by
- // verifying that whatever ID it has, it changes away from and back to when we
- // change the shared bitmap to something else then back to the original.
- LayerTreeImplTestBase impl;
- impl.host()->SetRootLayer(layer1);
- layer1->Update();
- EXPECT_TRUE(layer1->draws_content());
- const auto other_lth_resource_id = layer1->resource_id();
- layer1->SetBitmap(other_bitmap);
- EXPECT_NE(other_lth_resource_id, layer1->resource_id());
- layer1->SetBitmap(bitmap_copy);
- EXPECT_EQ(other_lth_resource_id, layer1->resource_id());
- }
- } // namespace
- } // namespace cc
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