cc/trees/layer_tree_host_pixeltest_readback.cc - chromium/src - Git at Google

 // 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 "build/build_config.h"
 #include "cc/layers/solid_color_layer.h"
 #include "cc/layers/texture_layer.h"
 #include "cc/output/copy_output_request.h"
 #include "cc/output/copy_output_result.h"
 #include "cc/test/fake_picture_layer.h"
 #include "cc/test/fake_picture_layer_impl.h"
 #include "cc/test/layer_tree_pixel_test.h"
 #include "cc/test/paths.h"
 #include "cc/test/solid_color_content_layer_client.h"
 #include "cc/trees/layer_tree_impl.h"

 #if !defined(OS_ANDROID)

 namespace cc {
 namespace {

 // Can't templatize a class on its own members, so ReadbackType and
 // ReadbackTestConfig are declared here, before LayerTreeHostReadbackPixelTest.
 enum ReadbackType {
   READBACK_INVALID,
   READBACK_DEFAULT,
   READBACK_BITMAP,
 };

 struct ReadbackTestConfig {
   ReadbackTestConfig(LayerTreePixelTest::PixelTestType pixel_test_type_,
                      ReadbackType readback_type_)
       : pixel_test_type(pixel_test_type_), readback_type(readback_type_) {}
   LayerTreePixelTest::PixelTestType pixel_test_type;
   ReadbackType readback_type;
 };

 class LayerTreeHostReadbackPixelTest
     : public LayerTreePixelTest,
       public testing::WithParamInterface<ReadbackTestConfig> {
  protected:
   LayerTreeHostReadbackPixelTest()
       : readback_type_(READBACK_INVALID),
         insert_copy_request_after_frame_count_(0) {}

   void RunReadbackTest(PixelTestType test_type,
                        ReadbackType readback_type,
                        scoped_refptr<Layer> content_root,
                        base::FilePath file_name) {
     readback_type_ = readback_type;
     RunPixelTest(test_type, content_root, file_name);
   }

   void RunReadbackTestWithReadbackTarget(PixelTestType type,
                                          ReadbackType readback_type,
                                          scoped_refptr<Layer> content_root,
                                          Layer* target,
                                          base::FilePath file_name) {
     readback_type_ = readback_type;
     RunPixelTestWithReadbackTarget(type, content_root, target, file_name);
   }

   std::unique_ptr<CopyOutputRequest> CreateCopyOutputRequest() override {
     std::unique_ptr<CopyOutputRequest> request;

     if (readback_type_ == READBACK_BITMAP) {
       request = CopyOutputRequest::CreateBitmapRequest(
           base::Bind(&LayerTreeHostReadbackPixelTest::ReadbackResultAsBitmap,
                      base::Unretained(this)));
     } else {
       DCHECK_EQ(readback_type_, READBACK_DEFAULT);
       if (test_type_ == PIXEL_TEST_SOFTWARE) {
         request = CopyOutputRequest::CreateRequest(
             base::Bind(&LayerTreeHostReadbackPixelTest::ReadbackResultAsBitmap,
                        base::Unretained(this)));
       } else {
         DCHECK_EQ(test_type_, PIXEL_TEST_GL);
         request = CopyOutputRequest::CreateRequest(
             base::Bind(&LayerTreeHostReadbackPixelTest::ReadbackResultAsTexture,
                        base::Unretained(this)));
       }
     }

     if (!copy_subrect_.IsEmpty())
       request->set_area(copy_subrect_);
     return request;
   }

   void BeginTest() override {
     if (insert_copy_request_after_frame_count_ == 0) {
       Layer* const target =
           readback_target_ ? readback_target_ : layer_tree_host()->root_layer();
       target->RequestCopyOfOutput(CreateCopyOutputRequest());
     }
     PostSetNeedsCommitToMainThread();
   }

   void DidCommitAndDrawFrame() override {
     if (insert_copy_request_after_frame_count_ ==
         layer_tree_host()->source_frame_number()) {
       Layer* const target =
           readback_target_ ? readback_target_ : layer_tree_host()->root_layer();
       target->RequestCopyOfOutput(CreateCopyOutputRequest());
     }
   }

   void ReadbackResultAsBitmap(std::unique_ptr<CopyOutputResult> result) {
     EXPECT_TRUE(task_runner_provider()->IsMainThread());
     EXPECT_TRUE(result->HasBitmap());
     result_bitmap_ = result->TakeBitmap();
     EndTest();
   }

   void ReadbackResultAsTexture(std::unique_ptr<CopyOutputResult> result) {
     EXPECT_TRUE(task_runner_provider()->IsMainThread());
     EXPECT_TRUE(result->HasTexture());

     TextureMailbox texture_mailbox;
     std::unique_ptr<SingleReleaseCallback> release_callback;
     result->TakeTexture(&texture_mailbox, &release_callback);
     EXPECT_TRUE(texture_mailbox.IsValid());
     EXPECT_TRUE(texture_mailbox.IsTexture());

     std::unique_ptr<SkBitmap> bitmap =
         CopyTextureMailboxToBitmap(result->size(), texture_mailbox);
     release_callback->Run(gpu::SyncToken(), false);

     ReadbackResultAsBitmap(
         CopyOutputResult::CreateBitmapResult(std::move(bitmap)));
   }

   ReadbackType readback_type_;
   gfx::Rect copy_subrect_;
   int insert_copy_request_after_frame_count_;
 };

 void IgnoreReadbackResult(std::unique_ptr<CopyOutputResult> result) {}

 TEST_P(LayerTreeHostReadbackPixelTest, ReadbackRootLayer) {
   scoped_refptr<SolidColorLayer> background =
       CreateSolidColorLayer(gfx::Rect(200, 200), SK_ColorWHITE);

   scoped_refptr<SolidColorLayer> green =
       CreateSolidColorLayer(gfx::Rect(200, 200), SK_ColorGREEN);
   background->AddChild(green);

   RunReadbackTest(GetParam().pixel_test_type, GetParam().readback_type,
                   background, base::FilePath(FILE_PATH_LITERAL("green.png")));
 }

 TEST_P(LayerTreeHostReadbackPixelTest, ReadbackRootLayerWithChild) {
   scoped_refptr<SolidColorLayer> background =
       CreateSolidColorLayer(gfx::Rect(200, 200), SK_ColorWHITE);

   scoped_refptr<SolidColorLayer> green =
       CreateSolidColorLayer(gfx::Rect(200, 200), SK_ColorGREEN);
   background->AddChild(green);

   scoped_refptr<SolidColorLayer> blue =
       CreateSolidColorLayer(gfx::Rect(150, 150, 50, 50), SK_ColorBLUE);
   green->AddChild(blue);

   RunReadbackTest(
       GetParam().pixel_test_type, GetParam().readback_type, background,
       base::FilePath(FILE_PATH_LITERAL("green_with_blue_corner.png")));
 }

 TEST_P(LayerTreeHostReadbackPixelTest, ReadbackNonRootLayer) {
   scoped_refptr<SolidColorLayer> background =
       CreateSolidColorLayer(gfx::Rect(200, 200), SK_ColorWHITE);

   scoped_refptr<SolidColorLayer> green =
       CreateSolidColorLayer(gfx::Rect(200, 200), SK_ColorGREEN);
   background->AddChild(green);

   RunReadbackTestWithReadbackTarget(
       GetParam().pixel_test_type, GetParam().readback_type, background,
       green.get(), base::FilePath(FILE_PATH_LITERAL("green.png")));
 }

 TEST_P(LayerTreeHostReadbackPixelTest, ReadbackSmallNonRootLayer) {
   scoped_refptr<SolidColorLayer> background =
       CreateSolidColorLayer(gfx::Rect(200, 200), SK_ColorWHITE);

   scoped_refptr<SolidColorLayer> green =
       CreateSolidColorLayer(gfx::Rect(100, 100, 100, 100), SK_ColorGREEN);
   background->AddChild(green);

   RunReadbackTestWithReadbackTarget(
       GetParam().pixel_test_type, GetParam().readback_type, background,
       green.get(), base::FilePath(FILE_PATH_LITERAL("green_small.png")));
 }

 TEST_P(LayerTreeHostReadbackPixelTest, ReadbackSmallNonRootLayerWithChild) {
   scoped_refptr<SolidColorLayer> background =
       CreateSolidColorLayer(gfx::Rect(200, 200), SK_ColorWHITE);

   scoped_refptr<SolidColorLayer> green =
       CreateSolidColorLayer(gfx::Rect(100, 100, 100, 100), SK_ColorGREEN);
   background->AddChild(green);

   scoped_refptr<SolidColorLayer> blue =
       CreateSolidColorLayer(gfx::Rect(50, 50, 50, 50), SK_ColorBLUE);
   green->AddChild(blue);

   RunReadbackTestWithReadbackTarget(
       GetParam().pixel_test_type, GetParam().readback_type, background,
       green.get(),
       base::FilePath(FILE_PATH_LITERAL("green_small_with_blue_corner.png")));
 }

 TEST_P(LayerTreeHostReadbackPixelTest, ReadbackSubtreeSurroundsTargetLayer) {
   scoped_refptr<SolidColorLayer> background =
       CreateSolidColorLayer(gfx::Rect(0, 0, 200, 200), SK_ColorWHITE);

   scoped_refptr<SolidColorLayer> target =
       CreateSolidColorLayer(gfx::Rect(100, 100, 100, 100), SK_ColorRED);
   background->AddChild(target);

   scoped_refptr<SolidColorLayer> green =
       CreateSolidColorLayer(gfx::Rect(-100, -100, 300, 300), SK_ColorGREEN);
   target->AddChild(green);

   scoped_refptr<SolidColorLayer> blue =
       CreateSolidColorLayer(gfx::Rect(50, 50, 50, 50), SK_ColorBLUE);
   target->AddChild(blue);

   copy_subrect_ = gfx::Rect(0, 0, 100, 100);
   RunReadbackTestWithReadbackTarget(
       GetParam().pixel_test_type, GetParam().readback_type, background,
       target.get(),
       base::FilePath(FILE_PATH_LITERAL("green_small_with_blue_corner.png")));
 }

 TEST_P(LayerTreeHostReadbackPixelTest,
        ReadbackSubtreeExtendsBeyondTargetLayer) {
   scoped_refptr<SolidColorLayer> background =
       CreateSolidColorLayer(gfx::Rect(0, 0, 200, 200), SK_ColorWHITE);

   scoped_refptr<SolidColorLayer> target =
       CreateSolidColorLayer(gfx::Rect(50, 50, 150, 150), SK_ColorRED);
   background->AddChild(target);

   scoped_refptr<SolidColorLayer> green =
       CreateSolidColorLayer(gfx::Rect(50, 50, 200, 200), SK_ColorGREEN);
   target->AddChild(green);

   scoped_refptr<SolidColorLayer> blue =
       CreateSolidColorLayer(gfx::Rect(100, 100, 50, 50), SK_ColorBLUE);
   target->AddChild(blue);

   copy_subrect_ = gfx::Rect(50, 50, 100, 100);
   RunReadbackTestWithReadbackTarget(
       GetParam().pixel_test_type, GetParam().readback_type, background,
       target.get(),
       base::FilePath(FILE_PATH_LITERAL("green_small_with_blue_corner.png")));
 }

 TEST_P(LayerTreeHostReadbackPixelTest, ReadbackHiddenSubtree) {
   scoped_refptr<SolidColorLayer> background =
       CreateSolidColorLayer(gfx::Rect(200, 200), SK_ColorBLACK);

   scoped_refptr<SolidColorLayer> hidden_target =
       CreateSolidColorLayer(gfx::Rect(200, 200), SK_ColorGREEN);
   hidden_target->SetHideLayerAndSubtree(true);
   background->AddChild(hidden_target);

   scoped_refptr<SolidColorLayer> blue =
       CreateSolidColorLayer(gfx::Rect(150, 150, 50, 50), SK_ColorBLUE);
   hidden_target->AddChild(blue);

   RunReadbackTestWithReadbackTarget(
       GetParam().pixel_test_type, GetParam().readback_type, background,
       hidden_target.get(),
       base::FilePath(FILE_PATH_LITERAL("green_with_blue_corner.png")));
 }

 TEST_P(LayerTreeHostReadbackPixelTest,
        HiddenSubtreeNotVisibleWhenDrawnForReadback) {
   scoped_refptr<SolidColorLayer> background =
       CreateSolidColorLayer(gfx::Rect(200, 200), SK_ColorBLACK);

   scoped_refptr<SolidColorLayer> hidden_target =
       CreateSolidColorLayer(gfx::Rect(200, 200), SK_ColorGREEN);
   hidden_target->SetHideLayerAndSubtree(true);
   background->AddChild(hidden_target);

   scoped_refptr<SolidColorLayer> blue =
       CreateSolidColorLayer(gfx::Rect(150, 150, 50, 50), SK_ColorBLUE);
   hidden_target->AddChild(blue);

   hidden_target->RequestCopyOfOutput(CopyOutputRequest::CreateBitmapRequest(
       base::Bind(&IgnoreReadbackResult)));
   RunReadbackTest(GetParam().pixel_test_type, GetParam().readback_type,
                   background, base::FilePath(FILE_PATH_LITERAL("black.png")));
 }

 TEST_P(LayerTreeHostReadbackPixelTest, ReadbackSubrect) {
   scoped_refptr<SolidColorLayer> background =
       CreateSolidColorLayer(gfx::Rect(200, 200), SK_ColorWHITE);

   scoped_refptr<SolidColorLayer> green =
       CreateSolidColorLayer(gfx::Rect(200, 200), SK_ColorGREEN);
   background->AddChild(green);

   scoped_refptr<SolidColorLayer> blue =
       CreateSolidColorLayer(gfx::Rect(100, 100, 50, 50), SK_ColorBLUE);
   green->AddChild(blue);

   // Grab the middle of the root layer.
   copy_subrect_ = gfx::Rect(50, 50, 100, 100);

   RunReadbackTest(
       GetParam().pixel_test_type, GetParam().readback_type, background,
       base::FilePath(FILE_PATH_LITERAL("green_small_with_blue_corner.png")));
 }

 TEST_P(LayerTreeHostReadbackPixelTest, ReadbackNonRootLayerSubrect) {
   scoped_refptr<SolidColorLayer> background =
       CreateSolidColorLayer(gfx::Rect(200, 200), SK_ColorWHITE);

   scoped_refptr<SolidColorLayer> green =
       CreateSolidColorLayer(gfx::Rect(25, 25, 150, 150), SK_ColorGREEN);
   background->AddChild(green);

   scoped_refptr<SolidColorLayer> blue =
       CreateSolidColorLayer(gfx::Rect(75, 75, 50, 50), SK_ColorBLUE);
   green->AddChild(blue);

   // Grab the middle of the green layer.
   copy_subrect_ = gfx::Rect(25, 25, 100, 100);

   RunReadbackTestWithReadbackTarget(
       GetParam().pixel_test_type, GetParam().readback_type, background,
       green.get(),
       base::FilePath(FILE_PATH_LITERAL("green_small_with_blue_corner.png")));
 }

 TEST_P(LayerTreeHostReadbackPixelTest, ReadbackWhenNoDamage) {
   scoped_refptr<SolidColorLayer> background =
       CreateSolidColorLayer(gfx::Rect(0, 0, 200, 200), SK_ColorWHITE);

   scoped_refptr<SolidColorLayer> parent =
       CreateSolidColorLayer(gfx::Rect(0, 0, 150, 150), SK_ColorRED);
   background->AddChild(parent);

   scoped_refptr<SolidColorLayer> target =
       CreateSolidColorLayer(gfx::Rect(0, 0, 100, 100), SK_ColorGREEN);
   parent->AddChild(target);

   scoped_refptr<SolidColorLayer> blue =
       CreateSolidColorLayer(gfx::Rect(50, 50, 50, 50), SK_ColorBLUE);
   target->AddChild(blue);

   insert_copy_request_after_frame_count_ = 1;
   RunReadbackTestWithReadbackTarget(
       GetParam().pixel_test_type, GetParam().readback_type, background,
       target.get(),
       base::FilePath(FILE_PATH_LITERAL("green_small_with_blue_corner.png")));
 }

 TEST_P(LayerTreeHostReadbackPixelTest, ReadbackOutsideViewportWhenNoDamage) {
   scoped_refptr<SolidColorLayer> background =
       CreateSolidColorLayer(gfx::Rect(0, 0, 200, 200), SK_ColorWHITE);

   scoped_refptr<SolidColorLayer> parent =
       CreateSolidColorLayer(gfx::Rect(0, 0, 200, 200), SK_ColorRED);
   EXPECT_FALSE(parent->masks_to_bounds());
   background->AddChild(parent);

   scoped_refptr<SolidColorLayer> target =
       CreateSolidColorLayer(gfx::Rect(250, 250, 100, 100), SK_ColorGREEN);
   parent->AddChild(target);

   scoped_refptr<SolidColorLayer> blue =
       CreateSolidColorLayer(gfx::Rect(50, 50, 50, 50), SK_ColorBLUE);
   target->AddChild(blue);

   insert_copy_request_after_frame_count_ = 1;
   RunReadbackTestWithReadbackTarget(
       GetParam().pixel_test_type, GetParam().readback_type, background,
       target.get(),
       base::FilePath(FILE_PATH_LITERAL("green_small_with_blue_corner.png")));
 }

 TEST_P(LayerTreeHostReadbackPixelTest, ReadbackNonRootLayerOutsideViewport) {
   scoped_refptr<SolidColorLayer> background =
       CreateSolidColorLayer(gfx::Rect(200, 200), SK_ColorWHITE);

   scoped_refptr<SolidColorLayer> green =
       CreateSolidColorLayer(gfx::Rect(200, 200), SK_ColorGREEN);
   // Only the top left quarter of the layer is inside the viewport, so the
   // blue layer is entirely outside.
   green->SetPosition(gfx::PointF(100.f, 100.f));
   background->AddChild(green);

   scoped_refptr<SolidColorLayer> blue =
       CreateSolidColorLayer(gfx::Rect(150, 150, 50, 50), SK_ColorBLUE);
   green->AddChild(blue);

   RunReadbackTestWithReadbackTarget(
       GetParam().pixel_test_type, GetParam().readback_type, background,
       green.get(),
       base::FilePath(FILE_PATH_LITERAL("green_with_blue_corner.png")));
 }

 TEST_P(LayerTreeHostReadbackPixelTest, ReadbackNonRootOrFirstLayer) {
   // This test has 3 render passes with the copy request on the render pass in
   // the middle. This test caught an issue where copy requests on non-root
   // non-first render passes were being treated differently from the first
   // render pass.
   scoped_refptr<SolidColorLayer> background =
       CreateSolidColorLayer(gfx::Rect(200, 200), SK_ColorGREEN);

   scoped_refptr<SolidColorLayer> blue =
       CreateSolidColorLayer(gfx::Rect(150, 150, 50, 50), SK_ColorBLUE);
   blue->RequestCopyOfOutput(CopyOutputRequest::CreateBitmapRequest(
       base::Bind(&IgnoreReadbackResult)));
   background->AddChild(blue);

   RunReadbackTestWithReadbackTarget(
       GetParam().pixel_test_type, GetParam().readback_type, background,
       background.get(),
       base::FilePath(FILE_PATH_LITERAL("green_with_blue_corner.png")));
 }

 TEST_P(LayerTreeHostReadbackPixelTest, MultipleReadbacksOnLayer) {
   // This test has 2 copy requests on the background layer. One is added in the
   // test body, another is added in RunReadbackTestWithReadbackTarget. For every
   // copy request after the first, state must be restored via a call to
   // UseRenderPass (see http://crbug.com/99393). This test ensures that the
   // renderer correctly handles cases where UseRenderPass is called multiple
   // times for a single layer.
   scoped_refptr<SolidColorLayer> background =
       CreateSolidColorLayer(gfx::Rect(200, 200), SK_ColorGREEN);

   background->RequestCopyOfOutput(CopyOutputRequest::CreateBitmapRequest(
       base::Bind(&IgnoreReadbackResult)));

   RunReadbackTestWithReadbackTarget(
       GetParam().pixel_test_type, GetParam().readback_type, background,
       background.get(), base::FilePath(FILE_PATH_LITERAL("green.png")));
 }

 INSTANTIATE_TEST_CASE_P(
     LayerTreeHostReadbackPixelTests,
     LayerTreeHostReadbackPixelTest,
     ::testing::Values(
         ReadbackTestConfig(LayerTreeHostReadbackPixelTest::PIXEL_TEST_SOFTWARE,
                            READBACK_DEFAULT),
         ReadbackTestConfig(LayerTreeHostReadbackPixelTest::PIXEL_TEST_GL,
                            READBACK_DEFAULT),
         ReadbackTestConfig(LayerTreeHostReadbackPixelTest::PIXEL_TEST_GL,
                            READBACK_BITMAP)));

 class LayerTreeHostReadbackDeviceScalePixelTest
     : public LayerTreeHostReadbackPixelTest {
  protected:
   LayerTreeHostReadbackDeviceScalePixelTest()
       : device_scale_factor_(1.f),
         white_client_(SK_ColorWHITE, gfx::Size(200, 200)),
         green_client_(SK_ColorGREEN, gfx::Size(200, 200)),
         blue_client_(SK_ColorBLUE, gfx::Size(200, 200)) {}

   void InitializeSettings(LayerTreeSettings* settings) override {
     // Cause the device scale factor to be inherited by contents scales.
     settings->layer_transforms_should_scale_layer_contents = true;
   }

   void SetupTree() override {
     layer_tree_host()->SetDeviceScaleFactor(device_scale_factor_);
     LayerTreePixelTest::SetupTree();
   }

   void DrawLayersOnThread(LayerTreeHostImpl* host_impl) override {
     EXPECT_EQ(device_scale_factor_,
               host_impl->active_tree()->device_scale_factor());
   }

   float device_scale_factor_;
   SolidColorContentLayerClient white_client_;
   SolidColorContentLayerClient green_client_;
   SolidColorContentLayerClient blue_client_;
 };

 TEST_P(LayerTreeHostReadbackDeviceScalePixelTest, ReadbackSubrect) {
   scoped_refptr<FakePictureLayer> background =
       FakePictureLayer::Create(&white_client_);
   background->SetBounds(gfx::Size(100, 100));
   background->SetIsDrawable(true);

   scoped_refptr<FakePictureLayer> green =
       FakePictureLayer::Create(&green_client_);
   green->SetBounds(gfx::Size(100, 100));
   green->SetIsDrawable(true);
   background->AddChild(green);

   scoped_refptr<FakePictureLayer> blue =
       FakePictureLayer::Create(&blue_client_);
   blue->SetPosition(gfx::PointF(50.f, 50.f));
   blue->SetBounds(gfx::Size(25, 25));
   blue->SetIsDrawable(true);
   green->AddChild(blue);

   // Grab the middle of the root layer.
   copy_subrect_ = gfx::Rect(25, 25, 50, 50);
   device_scale_factor_ = 2.f;
   RunReadbackTest(
       GetParam().pixel_test_type, GetParam().readback_type, background,
       base::FilePath(FILE_PATH_LITERAL("green_small_with_blue_corner.png")));
 }

 TEST_P(LayerTreeHostReadbackDeviceScalePixelTest, ReadbackNonRootLayerSubrect) {
   scoped_refptr<FakePictureLayer> background =
       FakePictureLayer::Create(&white_client_);
   background->SetBounds(gfx::Size(100, 100));
   background->SetIsDrawable(true);

   scoped_refptr<FakePictureLayer> green =
       FakePictureLayer::Create(&green_client_);
   green->SetPosition(gfx::PointF(10.f, 20.f));
   green->SetBounds(gfx::Size(90, 80));
   green->SetIsDrawable(true);
   background->AddChild(green);

   scoped_refptr<FakePictureLayer> blue =
       FakePictureLayer::Create(&blue_client_);
   blue->SetPosition(gfx::PointF(50.f, 50.f));
   blue->SetBounds(gfx::Size(25, 25));
   blue->SetIsDrawable(true);
   green->AddChild(blue);

   // Grab the green layer's content with blue in the bottom right.
   copy_subrect_ = gfx::Rect(25, 25, 50, 50);
   device_scale_factor_ = 2.f;
   RunReadbackTestWithReadbackTarget(
       GetParam().pixel_test_type, GetParam().readback_type, background,
       green.get(),
       base::FilePath(FILE_PATH_LITERAL("green_small_with_blue_corner.png")));
 }

 INSTANTIATE_TEST_CASE_P(
     LayerTreeHostReadbackDeviceScalePixelTests,
     LayerTreeHostReadbackDeviceScalePixelTest,
     ::testing::Values(
         ReadbackTestConfig(LayerTreeHostReadbackPixelTest::PIXEL_TEST_SOFTWARE,
                            READBACK_DEFAULT),
         ReadbackTestConfig(LayerTreeHostReadbackPixelTest::PIXEL_TEST_GL,
                            READBACK_DEFAULT),
         ReadbackTestConfig(LayerTreeHostReadbackPixelTest::PIXEL_TEST_GL,
                            READBACK_BITMAP)));

 }  // namespace
 }  // namespace cc

 #endif  // OS_ANDROID
	// 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 "build/build_config.h"
	#include "cc/layers/solid_color_layer.h"
	#include "cc/layers/texture_layer.h"
	#include "cc/output/copy_output_request.h"
	#include "cc/output/copy_output_result.h"
	#include "cc/test/fake_picture_layer.h"
	#include "cc/test/fake_picture_layer_impl.h"
	#include "cc/test/layer_tree_pixel_test.h"
	#include "cc/test/paths.h"
	#include "cc/test/solid_color_content_layer_client.h"
	#include "cc/trees/layer_tree_impl.h"

	#if !defined(OS_ANDROID)

	namespace cc {
	namespace {

	// Can't templatize a class on its own members, so ReadbackType and
	// ReadbackTestConfig are declared here, before LayerTreeHostReadbackPixelTest.
	enum ReadbackType {
	READBACK_INVALID,
	READBACK_DEFAULT,
	READBACK_BITMAP,
	};

	struct ReadbackTestConfig {
	ReadbackTestConfig(LayerTreePixelTest::PixelTestType pixel_test_type_,
	ReadbackType readback_type_)
	: pixel_test_type(pixel_test_type_), readback_type(readback_type_) {}
	LayerTreePixelTest::PixelTestType pixel_test_type;
	ReadbackType readback_type;
	};

	class LayerTreeHostReadbackPixelTest
	: public LayerTreePixelTest,
	public testing::WithParamInterface<ReadbackTestConfig> {
	protected:
	LayerTreeHostReadbackPixelTest()
	: readback_type_(READBACK_INVALID),
	insert_copy_request_after_frame_count_(0) {}

	void RunReadbackTest(PixelTestType test_type,
	ReadbackType readback_type,
	scoped_refptr<Layer> content_root,
	base::FilePath file_name) {
	readback_type_ = readback_type;
	RunPixelTest(test_type, content_root, file_name);
	}

	void RunReadbackTestWithReadbackTarget(PixelTestType type,
	ReadbackType readback_type,
	scoped_refptr<Layer> content_root,
	Layer* target,
	base::FilePath file_name) {
	readback_type_ = readback_type;
	RunPixelTestWithReadbackTarget(type, content_root, target, file_name);
	}

	std::unique_ptr<CopyOutputRequest> CreateCopyOutputRequest() override {
	std::unique_ptr<CopyOutputRequest> request;

	if (readback_type_ == READBACK_BITMAP) {
	request = CopyOutputRequest::CreateBitmapRequest(
	base::Bind(&LayerTreeHostReadbackPixelTest::ReadbackResultAsBitmap,
	base::Unretained(this)));
	} else {
	DCHECK_EQ(readback_type_, READBACK_DEFAULT);
	if (test_type_ == PIXEL_TEST_SOFTWARE) {
	request = CopyOutputRequest::CreateRequest(
	base::Bind(&LayerTreeHostReadbackPixelTest::ReadbackResultAsBitmap,
	base::Unretained(this)));
	} else {
	DCHECK_EQ(test_type_, PIXEL_TEST_GL);
	request = CopyOutputRequest::CreateRequest(
	base::Bind(&LayerTreeHostReadbackPixelTest::ReadbackResultAsTexture,
	base::Unretained(this)));
	}
	}

	if (!copy_subrect_.IsEmpty())
	request->set_area(copy_subrect_);
	return request;
	}

	void BeginTest() override {
	if (insert_copy_request_after_frame_count_ == 0) {
	Layer* const target =
	readback_target_ ? readback_target_ : layer_tree_host()->root_layer();
	target->RequestCopyOfOutput(CreateCopyOutputRequest());
	}
	PostSetNeedsCommitToMainThread();
	}

	void DidCommitAndDrawFrame() override {
	if (insert_copy_request_after_frame_count_ ==
	layer_tree_host()->source_frame_number()) {
	Layer* const target =
	readback_target_ ? readback_target_ : layer_tree_host()->root_layer();
	target->RequestCopyOfOutput(CreateCopyOutputRequest());
	}
	}

	void ReadbackResultAsBitmap(std::unique_ptr<CopyOutputResult> result) {
	EXPECT_TRUE(task_runner_provider()->IsMainThread());
	EXPECT_TRUE(result->HasBitmap());
	result_bitmap_ = result->TakeBitmap();
	EndTest();
	}

	void ReadbackResultAsTexture(std::unique_ptr<CopyOutputResult> result) {
	EXPECT_TRUE(task_runner_provider()->IsMainThread());
	EXPECT_TRUE(result->HasTexture());

	TextureMailbox texture_mailbox;
	std::unique_ptr<SingleReleaseCallback> release_callback;
	result->TakeTexture(&texture_mailbox, &release_callback);
	EXPECT_TRUE(texture_mailbox.IsValid());
	EXPECT_TRUE(texture_mailbox.IsTexture());

	std::unique_ptr<SkBitmap> bitmap =
	CopyTextureMailboxToBitmap(result->size(), texture_mailbox);
	release_callback->Run(gpu::SyncToken(), false);

	ReadbackResultAsBitmap(
	CopyOutputResult::CreateBitmapResult(std::move(bitmap)));
	}

	ReadbackType readback_type_;
	gfx::Rect copy_subrect_;
	int insert_copy_request_after_frame_count_;
	};

	void IgnoreReadbackResult(std::unique_ptr<CopyOutputResult> result) {}

	TEST_P(LayerTreeHostReadbackPixelTest, ReadbackRootLayer) {
	scoped_refptr<SolidColorLayer> background =
	CreateSolidColorLayer(gfx::Rect(200, 200), SK_ColorWHITE);

	scoped_refptr<SolidColorLayer> green =
	CreateSolidColorLayer(gfx::Rect(200, 200), SK_ColorGREEN);
	background->AddChild(green);

	RunReadbackTest(GetParam().pixel_test_type, GetParam().readback_type,
	background, base::FilePath(FILE_PATH_LITERAL("green.png")));
	}

	TEST_P(LayerTreeHostReadbackPixelTest, ReadbackRootLayerWithChild) {
	scoped_refptr<SolidColorLayer> background =
	CreateSolidColorLayer(gfx::Rect(200, 200), SK_ColorWHITE);

	scoped_refptr<SolidColorLayer> green =
	CreateSolidColorLayer(gfx::Rect(200, 200), SK_ColorGREEN);
	background->AddChild(green);

	scoped_refptr<SolidColorLayer> blue =
	CreateSolidColorLayer(gfx::Rect(150, 150, 50, 50), SK_ColorBLUE);
	green->AddChild(blue);

	RunReadbackTest(
	GetParam().pixel_test_type, GetParam().readback_type, background,
	base::FilePath(FILE_PATH_LITERAL("green_with_blue_corner.png")));
	}

	TEST_P(LayerTreeHostReadbackPixelTest, ReadbackNonRootLayer) {
	scoped_refptr<SolidColorLayer> background =
	CreateSolidColorLayer(gfx::Rect(200, 200), SK_ColorWHITE);

	scoped_refptr<SolidColorLayer> green =
	CreateSolidColorLayer(gfx::Rect(200, 200), SK_ColorGREEN);
	background->AddChild(green);

	RunReadbackTestWithReadbackTarget(
	GetParam().pixel_test_type, GetParam().readback_type, background,
	green.get(), base::FilePath(FILE_PATH_LITERAL("green.png")));
	}

	TEST_P(LayerTreeHostReadbackPixelTest, ReadbackSmallNonRootLayer) {
	scoped_refptr<SolidColorLayer> background =
	CreateSolidColorLayer(gfx::Rect(200, 200), SK_ColorWHITE);

	scoped_refptr<SolidColorLayer> green =
	CreateSolidColorLayer(gfx::Rect(100, 100, 100, 100), SK_ColorGREEN);
	background->AddChild(green);

	RunReadbackTestWithReadbackTarget(
	GetParam().pixel_test_type, GetParam().readback_type, background,
	green.get(), base::FilePath(FILE_PATH_LITERAL("green_small.png")));
	}

	TEST_P(LayerTreeHostReadbackPixelTest, ReadbackSmallNonRootLayerWithChild) {
	scoped_refptr<SolidColorLayer> background =
	CreateSolidColorLayer(gfx::Rect(200, 200), SK_ColorWHITE);

	scoped_refptr<SolidColorLayer> green =
	CreateSolidColorLayer(gfx::Rect(100, 100, 100, 100), SK_ColorGREEN);
	background->AddChild(green);

	scoped_refptr<SolidColorLayer> blue =
	CreateSolidColorLayer(gfx::Rect(50, 50, 50, 50), SK_ColorBLUE);
	green->AddChild(blue);

	RunReadbackTestWithReadbackTarget(
	GetParam().pixel_test_type, GetParam().readback_type, background,
	green.get(),
	base::FilePath(FILE_PATH_LITERAL("green_small_with_blue_corner.png")));
	}

	TEST_P(LayerTreeHostReadbackPixelTest, ReadbackSubtreeSurroundsTargetLayer) {
	scoped_refptr<SolidColorLayer> background =
	CreateSolidColorLayer(gfx::Rect(0, 0, 200, 200), SK_ColorWHITE);

	scoped_refptr<SolidColorLayer> target =
	CreateSolidColorLayer(gfx::Rect(100, 100, 100, 100), SK_ColorRED);
	background->AddChild(target);

	scoped_refptr<SolidColorLayer> green =
	CreateSolidColorLayer(gfx::Rect(-100, -100, 300, 300), SK_ColorGREEN);
	target->AddChild(green);

	scoped_refptr<SolidColorLayer> blue =
	CreateSolidColorLayer(gfx::Rect(50, 50, 50, 50), SK_ColorBLUE);
	target->AddChild(blue);

	copy_subrect_ = gfx::Rect(0, 0, 100, 100);
	RunReadbackTestWithReadbackTarget(
	GetParam().pixel_test_type, GetParam().readback_type, background,
	target.get(),
	base::FilePath(FILE_PATH_LITERAL("green_small_with_blue_corner.png")));
	}

	TEST_P(LayerTreeHostReadbackPixelTest,
	ReadbackSubtreeExtendsBeyondTargetLayer) {
	scoped_refptr<SolidColorLayer> background =
	CreateSolidColorLayer(gfx::Rect(0, 0, 200, 200), SK_ColorWHITE);

	scoped_refptr<SolidColorLayer> target =
	CreateSolidColorLayer(gfx::Rect(50, 50, 150, 150), SK_ColorRED);
	background->AddChild(target);

	scoped_refptr<SolidColorLayer> green =
	CreateSolidColorLayer(gfx::Rect(50, 50, 200, 200), SK_ColorGREEN);
	target->AddChild(green);

	scoped_refptr<SolidColorLayer> blue =
	CreateSolidColorLayer(gfx::Rect(100, 100, 50, 50), SK_ColorBLUE);
	target->AddChild(blue);

	copy_subrect_ = gfx::Rect(50, 50, 100, 100);
	RunReadbackTestWithReadbackTarget(
	GetParam().pixel_test_type, GetParam().readback_type, background,
	target.get(),
	base::FilePath(FILE_PATH_LITERAL("green_small_with_blue_corner.png")));
	}

	TEST_P(LayerTreeHostReadbackPixelTest, ReadbackHiddenSubtree) {
	scoped_refptr<SolidColorLayer> background =
	CreateSolidColorLayer(gfx::Rect(200, 200), SK_ColorBLACK);

	scoped_refptr<SolidColorLayer> hidden_target =
	CreateSolidColorLayer(gfx::Rect(200, 200), SK_ColorGREEN);
	hidden_target->SetHideLayerAndSubtree(true);
	background->AddChild(hidden_target);

	scoped_refptr<SolidColorLayer> blue =
	CreateSolidColorLayer(gfx::Rect(150, 150, 50, 50), SK_ColorBLUE);
	hidden_target->AddChild(blue);

	RunReadbackTestWithReadbackTarget(
	GetParam().pixel_test_type, GetParam().readback_type, background,
	hidden_target.get(),
	base::FilePath(FILE_PATH_LITERAL("green_with_blue_corner.png")));
	}

	TEST_P(LayerTreeHostReadbackPixelTest,
	HiddenSubtreeNotVisibleWhenDrawnForReadback) {
	scoped_refptr<SolidColorLayer> background =
	CreateSolidColorLayer(gfx::Rect(200, 200), SK_ColorBLACK);

	scoped_refptr<SolidColorLayer> hidden_target =
	CreateSolidColorLayer(gfx::Rect(200, 200), SK_ColorGREEN);
	hidden_target->SetHideLayerAndSubtree(true);
	background->AddChild(hidden_target);

	scoped_refptr<SolidColorLayer> blue =
	CreateSolidColorLayer(gfx::Rect(150, 150, 50, 50), SK_ColorBLUE);
	hidden_target->AddChild(blue);

	hidden_target->RequestCopyOfOutput(CopyOutputRequest::CreateBitmapRequest(
	base::Bind(&IgnoreReadbackResult)));
	RunReadbackTest(GetParam().pixel_test_type, GetParam().readback_type,
	background, base::FilePath(FILE_PATH_LITERAL("black.png")));
	}

	TEST_P(LayerTreeHostReadbackPixelTest, ReadbackSubrect) {
	scoped_refptr<SolidColorLayer> background =
	CreateSolidColorLayer(gfx::Rect(200, 200), SK_ColorWHITE);

	scoped_refptr<SolidColorLayer> green =
	CreateSolidColorLayer(gfx::Rect(200, 200), SK_ColorGREEN);
	background->AddChild(green);

	scoped_refptr<SolidColorLayer> blue =
	CreateSolidColorLayer(gfx::Rect(100, 100, 50, 50), SK_ColorBLUE);
	green->AddChild(blue);

	// Grab the middle of the root layer.
	copy_subrect_ = gfx::Rect(50, 50, 100, 100);

	RunReadbackTest(
	GetParam().pixel_test_type, GetParam().readback_type, background,
	base::FilePath(FILE_PATH_LITERAL("green_small_with_blue_corner.png")));
	}

	TEST_P(LayerTreeHostReadbackPixelTest, ReadbackNonRootLayerSubrect) {
	scoped_refptr<SolidColorLayer> background =
	CreateSolidColorLayer(gfx::Rect(200, 200), SK_ColorWHITE);

	scoped_refptr<SolidColorLayer> green =
	CreateSolidColorLayer(gfx::Rect(25, 25, 150, 150), SK_ColorGREEN);
	background->AddChild(green);

	scoped_refptr<SolidColorLayer> blue =
	CreateSolidColorLayer(gfx::Rect(75, 75, 50, 50), SK_ColorBLUE);
	green->AddChild(blue);

	// Grab the middle of the green layer.
	copy_subrect_ = gfx::Rect(25, 25, 100, 100);

	RunReadbackTestWithReadbackTarget(
	GetParam().pixel_test_type, GetParam().readback_type, background,
	green.get(),
	base::FilePath(FILE_PATH_LITERAL("green_small_with_blue_corner.png")));
	}

	TEST_P(LayerTreeHostReadbackPixelTest, ReadbackWhenNoDamage) {
	scoped_refptr<SolidColorLayer> background =
	CreateSolidColorLayer(gfx::Rect(0, 0, 200, 200), SK_ColorWHITE);

	scoped_refptr<SolidColorLayer> parent =
	CreateSolidColorLayer(gfx::Rect(0, 0, 150, 150), SK_ColorRED);
	background->AddChild(parent);

	scoped_refptr<SolidColorLayer> target =
	CreateSolidColorLayer(gfx::Rect(0, 0, 100, 100), SK_ColorGREEN);
	parent->AddChild(target);

	scoped_refptr<SolidColorLayer> blue =
	CreateSolidColorLayer(gfx::Rect(50, 50, 50, 50), SK_ColorBLUE);
	target->AddChild(blue);

	insert_copy_request_after_frame_count_ = 1;
	RunReadbackTestWithReadbackTarget(
	GetParam().pixel_test_type, GetParam().readback_type, background,
	target.get(),
	base::FilePath(FILE_PATH_LITERAL("green_small_with_blue_corner.png")));
	}

	TEST_P(LayerTreeHostReadbackPixelTest, ReadbackOutsideViewportWhenNoDamage) {
	scoped_refptr<SolidColorLayer> background =
	CreateSolidColorLayer(gfx::Rect(0, 0, 200, 200), SK_ColorWHITE);

	scoped_refptr<SolidColorLayer> parent =
	CreateSolidColorLayer(gfx::Rect(0, 0, 200, 200), SK_ColorRED);
	EXPECT_FALSE(parent->masks_to_bounds());
	background->AddChild(parent);

	scoped_refptr<SolidColorLayer> target =
	CreateSolidColorLayer(gfx::Rect(250, 250, 100, 100), SK_ColorGREEN);
	parent->AddChild(target);

	scoped_refptr<SolidColorLayer> blue =
	CreateSolidColorLayer(gfx::Rect(50, 50, 50, 50), SK_ColorBLUE);
	target->AddChild(blue);

	insert_copy_request_after_frame_count_ = 1;
	RunReadbackTestWithReadbackTarget(
	GetParam().pixel_test_type, GetParam().readback_type, background,
	target.get(),
	base::FilePath(FILE_PATH_LITERAL("green_small_with_blue_corner.png")));
	}

	TEST_P(LayerTreeHostReadbackPixelTest, ReadbackNonRootLayerOutsideViewport) {
	scoped_refptr<SolidColorLayer> background =
	CreateSolidColorLayer(gfx::Rect(200, 200), SK_ColorWHITE);

	scoped_refptr<SolidColorLayer> green =
	CreateSolidColorLayer(gfx::Rect(200, 200), SK_ColorGREEN);
	// Only the top left quarter of the layer is inside the viewport, so the
	// blue layer is entirely outside.
	green->SetPosition(gfx::PointF(100.f, 100.f));
	background->AddChild(green);

	scoped_refptr<SolidColorLayer> blue =
	CreateSolidColorLayer(gfx::Rect(150, 150, 50, 50), SK_ColorBLUE);
	green->AddChild(blue);

	RunReadbackTestWithReadbackTarget(
	GetParam().pixel_test_type, GetParam().readback_type, background,
	green.get(),
	base::FilePath(FILE_PATH_LITERAL("green_with_blue_corner.png")));
	}

	TEST_P(LayerTreeHostReadbackPixelTest, ReadbackNonRootOrFirstLayer) {
	// This test has 3 render passes with the copy request on the render pass in
	// the middle. This test caught an issue where copy requests on non-root
	// non-first render passes were being treated differently from the first
	// render pass.
	scoped_refptr<SolidColorLayer> background =
	CreateSolidColorLayer(gfx::Rect(200, 200), SK_ColorGREEN);

	scoped_refptr<SolidColorLayer> blue =
	CreateSolidColorLayer(gfx::Rect(150, 150, 50, 50), SK_ColorBLUE);
	blue->RequestCopyOfOutput(CopyOutputRequest::CreateBitmapRequest(
	base::Bind(&IgnoreReadbackResult)));
	background->AddChild(blue);

	RunReadbackTestWithReadbackTarget(
	GetParam().pixel_test_type, GetParam().readback_type, background,
	background.get(),
	base::FilePath(FILE_PATH_LITERAL("green_with_blue_corner.png")));
	}

	TEST_P(LayerTreeHostReadbackPixelTest, MultipleReadbacksOnLayer) {
	// This test has 2 copy requests on the background layer. One is added in the
	// test body, another is added in RunReadbackTestWithReadbackTarget. For every
	// copy request after the first, state must be restored via a call to
	// UseRenderPass (see http://crbug.com/99393). This test ensures that the
	// renderer correctly handles cases where UseRenderPass is called multiple
	// times for a single layer.
	scoped_refptr<SolidColorLayer> background =
	CreateSolidColorLayer(gfx::Rect(200, 200), SK_ColorGREEN);

	background->RequestCopyOfOutput(CopyOutputRequest::CreateBitmapRequest(
	base::Bind(&IgnoreReadbackResult)));

	RunReadbackTestWithReadbackTarget(
	GetParam().pixel_test_type, GetParam().readback_type, background,
	background.get(), base::FilePath(FILE_PATH_LITERAL("green.png")));
	}

	INSTANTIATE_TEST_CASE_P(
	LayerTreeHostReadbackPixelTests,
	LayerTreeHostReadbackPixelTest,
	::testing::Values(
	ReadbackTestConfig(LayerTreeHostReadbackPixelTest::PIXEL_TEST_SOFTWARE,
	READBACK_DEFAULT),
	ReadbackTestConfig(LayerTreeHostReadbackPixelTest::PIXEL_TEST_GL,
	READBACK_DEFAULT),
	ReadbackTestConfig(LayerTreeHostReadbackPixelTest::PIXEL_TEST_GL,
	READBACK_BITMAP)));

	class LayerTreeHostReadbackDeviceScalePixelTest
	: public LayerTreeHostReadbackPixelTest {
	protected:
	LayerTreeHostReadbackDeviceScalePixelTest()
	: device_scale_factor_(1.f),
	white_client_(SK_ColorWHITE, gfx::Size(200, 200)),
	green_client_(SK_ColorGREEN, gfx::Size(200, 200)),
	blue_client_(SK_ColorBLUE, gfx::Size(200, 200)) {}

	void InitializeSettings(LayerTreeSettings* settings) override {
	// Cause the device scale factor to be inherited by contents scales.
	settings->layer_transforms_should_scale_layer_contents = true;
	}

	void SetupTree() override {
	layer_tree_host()->SetDeviceScaleFactor(device_scale_factor_);
	LayerTreePixelTest::SetupTree();
	}

	void DrawLayersOnThread(LayerTreeHostImpl* host_impl) override {
	EXPECT_EQ(device_scale_factor_,
	host_impl->active_tree()->device_scale_factor());
	}

	float device_scale_factor_;
	SolidColorContentLayerClient white_client_;
	SolidColorContentLayerClient green_client_;
	SolidColorContentLayerClient blue_client_;
	};

	TEST_P(LayerTreeHostReadbackDeviceScalePixelTest, ReadbackSubrect) {
	scoped_refptr<FakePictureLayer> background =
	FakePictureLayer::Create(&white_client_);
	background->SetBounds(gfx::Size(100, 100));
	background->SetIsDrawable(true);

	scoped_refptr<FakePictureLayer> green =
	FakePictureLayer::Create(&green_client_);
	green->SetBounds(gfx::Size(100, 100));
	green->SetIsDrawable(true);
	background->AddChild(green);

	scoped_refptr<FakePictureLayer> blue =
	FakePictureLayer::Create(&blue_client_);
	blue->SetPosition(gfx::PointF(50.f, 50.f));
	blue->SetBounds(gfx::Size(25, 25));
	blue->SetIsDrawable(true);
	green->AddChild(blue);

	// Grab the middle of the root layer.
	copy_subrect_ = gfx::Rect(25, 25, 50, 50);
	device_scale_factor_ = 2.f;
	RunReadbackTest(
	GetParam().pixel_test_type, GetParam().readback_type, background,
	base::FilePath(FILE_PATH_LITERAL("green_small_with_blue_corner.png")));
	}

	TEST_P(LayerTreeHostReadbackDeviceScalePixelTest, ReadbackNonRootLayerSubrect) {
	scoped_refptr<FakePictureLayer> background =
	FakePictureLayer::Create(&white_client_);
	background->SetBounds(gfx::Size(100, 100));
	background->SetIsDrawable(true);

	scoped_refptr<FakePictureLayer> green =
	FakePictureLayer::Create(&green_client_);
	green->SetPosition(gfx::PointF(10.f, 20.f));
	green->SetBounds(gfx::Size(90, 80));
	green->SetIsDrawable(true);
	background->AddChild(green);

	scoped_refptr<FakePictureLayer> blue =
	FakePictureLayer::Create(&blue_client_);
	blue->SetPosition(gfx::PointF(50.f, 50.f));
	blue->SetBounds(gfx::Size(25, 25));
	blue->SetIsDrawable(true);
	green->AddChild(blue);

	// Grab the green layer's content with blue in the bottom right.
	copy_subrect_ = gfx::Rect(25, 25, 50, 50);
	device_scale_factor_ = 2.f;
	RunReadbackTestWithReadbackTarget(
	GetParam().pixel_test_type, GetParam().readback_type, background,
	green.get(),
	base::FilePath(FILE_PATH_LITERAL("green_small_with_blue_corner.png")));
	}

	INSTANTIATE_TEST_CASE_P(
	LayerTreeHostReadbackDeviceScalePixelTests,
	LayerTreeHostReadbackDeviceScalePixelTest,
	::testing::Values(
	ReadbackTestConfig(LayerTreeHostReadbackPixelTest::PIXEL_TEST_SOFTWARE,
	READBACK_DEFAULT),
	ReadbackTestConfig(LayerTreeHostReadbackPixelTest::PIXEL_TEST_GL,
	READBACK_DEFAULT),
	ReadbackTestConfig(LayerTreeHostReadbackPixelTest::PIXEL_TEST_GL,
	READBACK_BITMAP)));

	} // namespace
	} // namespace cc

	#endif // OS_ANDROID