cc/delegated_renderer_layer_impl_unittest.cc - chromium/src.git - Git at Google

 // Copyright 2012 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 "config.h"

 #include "CCDelegatedRendererLayerImpl.h"

 #include "CCAppendQuadsData.h"
 #include "CCLayerTreeHostImpl.h"
 #include "CCQuadSink.h"
 #include "CCRenderPassDrawQuad.h"
 #include "CCSingleThreadProxy.h"
 #include "CCSolidColorDrawQuad.h"
 #include "CCSolidColorLayerImpl.h"
 #include "cc/scoped_ptr_vector.h"
 #include "cc/test/fake_web_compositor_output_surface.h"
 #include "cc/test/fake_web_graphics_context_3d.h"
 #include "cc/test/geometry_test_utils.h"
 #include "cc/test/mock_quad_culler.h"
 #include "cc/test/render_pass_test_common.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include <public/WebTransformationMatrix.h>

 using WebKit::FakeWebCompositorOutputSurface;
 using WebKit::FakeWebGraphicsContext3D;
 using WebKit::WebTransformationMatrix;

 using namespace cc;
 using namespace WebKitTests;

 namespace {

 class CCDelegatedRendererLayerImplTest : public testing::Test, public CCLayerTreeHostImplClient {
 public:
     CCDelegatedRendererLayerImplTest()
     {
         CCLayerTreeSettings settings;
         settings.minimumOcclusionTrackingSize = IntSize();

         m_hostImpl = CCLayerTreeHostImpl::create(settings, this);
         m_hostImpl->initializeRenderer(createContext());
         m_hostImpl->setViewportSize(IntSize(10, 10), IntSize(10, 10));
     }

     // CCLayerTreeHostImplClient implementation.
     virtual void didLoseContextOnImplThread() OVERRIDE { }
     virtual void onSwapBuffersCompleteOnImplThread() OVERRIDE { }
     virtual void onVSyncParametersChanged(double, double) OVERRIDE { }
     virtual void onCanDrawStateChanged(bool) OVERRIDE { }
     virtual void setNeedsRedrawOnImplThread() OVERRIDE { }
     virtual void setNeedsCommitOnImplThread() OVERRIDE { }
     virtual void postAnimationEventsToMainThreadOnImplThread(scoped_ptr<CCAnimationEventsVector>, double wallClockTime) OVERRIDE { }
     virtual bool reduceContentsTextureMemoryOnImplThread(size_t limitBytes) OVERRIDE { return true; }

 protected:
     scoped_ptr<CCGraphicsContext> createContext()
     {
         return FakeWebCompositorOutputSurface::create(adoptPtr(new FakeWebGraphicsContext3D)).PassAs<CCGraphicsContext>();
     }

     DebugScopedSetImplThread m_alwaysImplThread;
     DebugScopedSetMainThreadBlocked m_alwaysMainThreadBlocked;

     scoped_ptr<CCLayerTreeHostImpl> m_hostImpl;
 };

 static CCTestRenderPass* addRenderPass(ScopedPtrVector<CCRenderPass>& passList, CCRenderPass::Id id, IntRect outputRect, WebTransformationMatrix rootTransform)
 {
     scoped_ptr<CCRenderPass> pass(CCRenderPass::create(id, outputRect, rootTransform));
     CCTestRenderPass* testPass = static_cast<CCTestRenderPass*>(pass.get());
     passList.append(pass.Pass());
     return testPass;
 }

 static CCSolidColorDrawQuad* addQuad(CCTestRenderPass* pass, IntRect rect, SkColor color)
 {
     MockCCQuadCuller quadSink(pass->quadList(), pass->sharedQuadStateList());
     CCAppendQuadsData data(pass->id());
     CCSharedQuadState* sharedState = quadSink.useSharedQuadState(CCSharedQuadState::create(WebTransformationMatrix(), rect, rect, 1, false));
     scoped_ptr<CCSolidColorDrawQuad> quad = CCSolidColorDrawQuad::create(sharedState, rect, color);
     CCSolidColorDrawQuad* quadPtr = quad.get();
     quadSink.append(quad.PassAs<CCDrawQuad>(), data);
     return quadPtr;
 }

 static void addRenderPassQuad(CCTestRenderPass* toPass, CCTestRenderPass* contributingPass)
 {
     MockCCQuadCuller quadSink(toPass->quadList(), toPass->sharedQuadStateList());
     CCAppendQuadsData data(toPass->id());
     IntRect outputRect = contributingPass->outputRect();
     CCSharedQuadState* sharedState = quadSink.useSharedQuadState(CCSharedQuadState::create(WebTransformationMatrix(), outputRect, outputRect, 1, false));
     scoped_ptr<CCRenderPassDrawQuad> quad = CCRenderPassDrawQuad::create(sharedState, outputRect, contributingPass->id(), false, 0, outputRect, 0, 0, 0, 0);
     quadSink.append(quad.PassAs<CCDrawQuad>(), data);
 }

 class CCDelegatedRendererLayerImplTestSimple : public CCDelegatedRendererLayerImplTest {
 public:
     CCDelegatedRendererLayerImplTestSimple()
         : CCDelegatedRendererLayerImplTest()
     {
         scoped_ptr<CCLayerImpl> rootLayer = CCSolidColorLayerImpl::create(1).PassAs<CCLayerImpl>();
         scoped_ptr<CCLayerImpl> layerBefore = CCSolidColorLayerImpl::create(2).PassAs<CCLayerImpl>();
         scoped_ptr<CCLayerImpl> layerAfter = CCSolidColorLayerImpl::create(3).PassAs<CCLayerImpl>();
         scoped_ptr<CCDelegatedRendererLayerImpl> delegatedRendererLayer = CCDelegatedRendererLayerImpl::create(4);

         m_hostImpl->setViewportSize(IntSize(100, 100), IntSize(100, 100));
         rootLayer->setBounds(IntSize(100, 100));

         layerBefore->setPosition(IntPoint(20, 20));
         layerBefore->setBounds(IntSize(14, 14));
         layerBefore->setContentBounds(IntSize(14, 14));
         layerBefore->setDrawsContent(true);
         layerBefore->setForceRenderSurface(true);

         layerAfter->setPosition(IntPoint(5, 5));
         layerAfter->setBounds(IntSize(15, 15));
         layerAfter->setContentBounds(IntSize(15, 15));
         layerAfter->setDrawsContent(true);
         layerAfter->setForceRenderSurface(true);

         delegatedRendererLayer->setPosition(IntPoint(3, 3));
         delegatedRendererLayer->setBounds(IntSize(10, 10));
         delegatedRendererLayer->setContentBounds(IntSize(10, 10));
         delegatedRendererLayer->setDrawsContent(true);
         WebTransformationMatrix transform;
         transform.translate(1, 1);
         delegatedRendererLayer->setTransform(transform);

         ScopedPtrVector<CCRenderPass> delegatedRenderPasses;
         CCTestRenderPass* pass1 = addRenderPass(delegatedRenderPasses, CCRenderPass::Id(9, 6), IntRect(6, 6, 6, 6), WebTransformationMatrix());
         addQuad(pass1, IntRect(0, 0, 6, 6), 33u);
         CCTestRenderPass* pass2 = addRenderPass(delegatedRenderPasses, CCRenderPass::Id(9, 7), IntRect(7, 7, 7, 7), WebTransformationMatrix());
         addQuad(pass2, IntRect(0, 0, 7, 7), 22u);
         addRenderPassQuad(pass2, pass1);
         CCTestRenderPass* pass3 = addRenderPass(delegatedRenderPasses, CCRenderPass::Id(9, 8), IntRect(8, 8, 8, 8), WebTransformationMatrix());
         addRenderPassQuad(pass3, pass2);
         delegatedRendererLayer->setRenderPasses(delegatedRenderPasses);

         // The RenderPasses should be taken by the layer.
         EXPECT_EQ(0u, delegatedRenderPasses.size());

         m_rootLayerPtr = rootLayer.get();
         m_layerBeforePtr = layerBefore.get();
         m_layerAfterPtr = layerAfter.get();
         m_delegatedRendererLayerPtr = delegatedRendererLayer.get();

         // Force the delegated RenderPasses to come before the RenderPass from layerAfter.
         layerAfter->addChild(delegatedRendererLayer.PassAs<CCLayerImpl>());
         rootLayer->addChild(layerAfter.Pass());

         // Get the RenderPass generated by layerBefore to come before the delegated RenderPasses.
         rootLayer->addChild(layerBefore.Pass());

         m_hostImpl->setRootLayer(rootLayer.Pass());
     }

 protected:
     CCLayerImpl* m_rootLayerPtr;
     CCLayerImpl* m_layerBeforePtr;
     CCLayerImpl* m_layerAfterPtr;
     CCDelegatedRendererLayerImpl* m_delegatedRendererLayerPtr;
 };

 TEST_F(CCDelegatedRendererLayerImplTestSimple, AddsContributingRenderPasses)
 {
     CCLayerTreeHostImpl::FrameData frame;
     EXPECT_TRUE(m_hostImpl->prepareToDraw(frame));
     m_hostImpl->drawLayers(frame);
     m_hostImpl->didDrawAllLayers(frame);

     // Each non-DelegatedRendererLayer added one RenderPass. The DelegatedRendererLayer added two contributing passes.
     ASSERT_EQ(5u, frame.renderPasses.size());

     // The DelegatedRendererLayer should have added its contributing RenderPasses to the frame.
     EXPECT_EQ(4, frame.renderPasses[1]->id().layerId);
     EXPECT_EQ(1, frame.renderPasses[1]->id().index);
     EXPECT_EQ(4, frame.renderPasses[2]->id().layerId);
     EXPECT_EQ(2, frame.renderPasses[2]->id().index);
     // And all other RenderPasses should be non-delegated.
     EXPECT_NE(4, frame.renderPasses[0]->id().layerId);
     EXPECT_EQ(0, frame.renderPasses[0]->id().index);
     EXPECT_NE(4, frame.renderPasses[3]->id().layerId);
     EXPECT_EQ(0, frame.renderPasses[3]->id().index);
     EXPECT_NE(4, frame.renderPasses[4]->id().layerId);
     EXPECT_EQ(0, frame.renderPasses[4]->id().index);

     // The DelegatedRendererLayer should have added its RenderPasses to the frame in order.
     EXPECT_RECT_EQ(IntRect(6, 6, 6, 6), frame.renderPasses[1]->outputRect());
     EXPECT_RECT_EQ(IntRect(7, 7, 7, 7), frame.renderPasses[2]->outputRect());
 }

 TEST_F(CCDelegatedRendererLayerImplTestSimple, AddsQuadsToContributingRenderPasses)
 {
     CCLayerTreeHostImpl::FrameData frame;
     EXPECT_TRUE(m_hostImpl->prepareToDraw(frame));
     m_hostImpl->drawLayers(frame);
     m_hostImpl->didDrawAllLayers(frame);

     // Each non-DelegatedRendererLayer added one RenderPass. The DelegatedRendererLayer added two contributing passes.
     ASSERT_EQ(5u, frame.renderPasses.size());

     // The DelegatedRendererLayer should have added its contributing RenderPasses to the frame.
     EXPECT_EQ(4, frame.renderPasses[1]->id().layerId);
     EXPECT_EQ(1, frame.renderPasses[1]->id().index);
     EXPECT_EQ(4, frame.renderPasses[2]->id().layerId);
     EXPECT_EQ(2, frame.renderPasses[2]->id().index);

     // The DelegatedRendererLayer should have added copies of its quads to contributing RenderPasses.
     ASSERT_EQ(1u, frame.renderPasses[1]->quadList().size());
     EXPECT_RECT_EQ(IntRect(0, 0, 6, 6), frame.renderPasses[1]->quadList()[0]->quadRect());

     // Verify it added the right quads.
     ASSERT_EQ(2u, frame.renderPasses[2]->quadList().size());
     EXPECT_RECT_EQ(IntRect(0, 0, 7, 7), frame.renderPasses[2]->quadList()[0]->quadRect());
     EXPECT_RECT_EQ(IntRect(6, 6, 6, 6), frame.renderPasses[2]->quadList()[1]->quadRect());
     ASSERT_EQ(1u, frame.renderPasses[1]->quadList().size());
     EXPECT_RECT_EQ(IntRect(0, 0, 6, 6), frame.renderPasses[1]->quadList()[0]->quadRect());
 }

 TEST_F(CCDelegatedRendererLayerImplTestSimple, AddsQuadsToTargetRenderPass)
 {
     CCLayerTreeHostImpl::FrameData frame;
     EXPECT_TRUE(m_hostImpl->prepareToDraw(frame));
     m_hostImpl->drawLayers(frame);
     m_hostImpl->didDrawAllLayers(frame);

     // Each non-DelegatedRendererLayer added one RenderPass. The DelegatedRendererLayer added two contributing passes.
     ASSERT_EQ(5u, frame.renderPasses.size());

     // The layer's target is the RenderPass from m_layerAfter.
     EXPECT_EQ(CCRenderPass::Id(3, 0), frame.renderPasses[3]->id());

     // The DelegatedRendererLayer should have added copies of quads in its root RenderPass to its target RenderPass.
     // The m_layerAfter also adds one quad.
     ASSERT_EQ(2u, frame.renderPasses[3]->quadList().size());

     // Verify it added the right quads.
     EXPECT_RECT_EQ(IntRect(7, 7, 7, 7), frame.renderPasses[3]->quadList()[0]->quadRect());

     // Its target layer should have a quad as well.
     EXPECT_RECT_EQ(IntRect(0, 0, 15, 15), frame.renderPasses[3]->quadList()[1]->quadRect());
 }

 TEST_F(CCDelegatedRendererLayerImplTestSimple, QuadsFromRootRenderPassAreModifiedForTheTarget)
 {
     CCLayerTreeHostImpl::FrameData frame;
     EXPECT_TRUE(m_hostImpl->prepareToDraw(frame));
     m_hostImpl->drawLayers(frame);
     m_hostImpl->didDrawAllLayers(frame);

     // Each non-DelegatedRendererLayer added one RenderPass. The DelegatedRendererLayer added two contributing passes.
     ASSERT_EQ(5u, frame.renderPasses.size());

     // The DelegatedRendererLayer is at position 3,3 compared to its target, and has a translation transform of 1,1.
     // So its root RenderPass' quads should all be transformed by that combined amount.
     WebTransformationMatrix transform;
     transform.translate(4, 4);
     EXPECT_TRANSFORMATION_MATRIX_EQ(transform, frame.renderPasses[3]->quadList()[0]->quadTransform());

     // Quads from non-root RenderPasses should not be shifted though.
     ASSERT_EQ(2u, frame.renderPasses[2]->quadList().size());
     EXPECT_TRANSFORMATION_MATRIX_EQ(WebTransformationMatrix(), frame.renderPasses[2]->quadList()[0]->quadTransform());
     EXPECT_TRANSFORMATION_MATRIX_EQ(WebTransformationMatrix(), frame.renderPasses[2]->quadList()[1]->quadTransform());
     ASSERT_EQ(1u, frame.renderPasses[1]->quadList().size());
     EXPECT_TRANSFORMATION_MATRIX_EQ(WebTransformationMatrix(), frame.renderPasses[1]->quadList()[0]->quadTransform());
 }

 class CCDelegatedRendererLayerImplTestOwnSurface : public CCDelegatedRendererLayerImplTestSimple {
 public:
     CCDelegatedRendererLayerImplTestOwnSurface()
         : CCDelegatedRendererLayerImplTestSimple()
     {
         m_delegatedRendererLayerPtr->setForceRenderSurface(true);
     }
 };

 TEST_F(CCDelegatedRendererLayerImplTestOwnSurface, AddsRenderPasses)
 {
     CCLayerTreeHostImpl::FrameData frame;
     EXPECT_TRUE(m_hostImpl->prepareToDraw(frame));
     m_hostImpl->drawLayers(frame);
     m_hostImpl->didDrawAllLayers(frame);

     // Each non-DelegatedRendererLayer added one RenderPass. The DelegatedRendererLayer added two contributing passes and its owned surface added one pass.
     ASSERT_EQ(6u, frame.renderPasses.size());

     // The DelegatedRendererLayer should have added its contributing RenderPasses to the frame.
     EXPECT_EQ(4, frame.renderPasses[1]->id().layerId);
     EXPECT_EQ(1, frame.renderPasses[1]->id().index);
     EXPECT_EQ(4, frame.renderPasses[2]->id().layerId);
     EXPECT_EQ(2, frame.renderPasses[2]->id().index);
     // The DelegatedRendererLayer should have added a RenderPass for its surface to the frame.
     EXPECT_EQ(4, frame.renderPasses[1]->id().layerId);
     EXPECT_EQ(0, frame.renderPasses[3]->id().index);
     // And all other RenderPasses should be non-delegated.
     EXPECT_NE(4, frame.renderPasses[0]->id().layerId);
     EXPECT_EQ(0, frame.renderPasses[0]->id().index);
     EXPECT_NE(4, frame.renderPasses[4]->id().layerId);
     EXPECT_EQ(0, frame.renderPasses[4]->id().index);
     EXPECT_NE(4, frame.renderPasses[5]->id().layerId);
     EXPECT_EQ(0, frame.renderPasses[5]->id().index);

     // The DelegatedRendererLayer should have added its RenderPasses to the frame in order.
     EXPECT_RECT_EQ(IntRect(6, 6, 6, 6), frame.renderPasses[1]->outputRect());
     EXPECT_RECT_EQ(IntRect(7, 7, 7, 7), frame.renderPasses[2]->outputRect());
 }

 TEST_F(CCDelegatedRendererLayerImplTestOwnSurface, AddsQuadsToContributingRenderPasses)
 {
     CCLayerTreeHostImpl::FrameData frame;
     EXPECT_TRUE(m_hostImpl->prepareToDraw(frame));
     m_hostImpl->drawLayers(frame);
     m_hostImpl->didDrawAllLayers(frame);

     // Each non-DelegatedRendererLayer added one RenderPass. The DelegatedRendererLayer added two contributing passes and its owned surface added one pass.
     ASSERT_EQ(6u, frame.renderPasses.size());

     // The DelegatedRendererLayer should have added its contributing RenderPasses to the frame.
     EXPECT_EQ(4, frame.renderPasses[1]->id().layerId);
     EXPECT_EQ(1, frame.renderPasses[1]->id().index);
     EXPECT_EQ(4, frame.renderPasses[2]->id().layerId);
     EXPECT_EQ(2, frame.renderPasses[2]->id().index);

     // The DelegatedRendererLayer should have added copies of its quads to contributing RenderPasses.
     ASSERT_EQ(1u, frame.renderPasses[1]->quadList().size());
     EXPECT_RECT_EQ(IntRect(0, 0, 6, 6), frame.renderPasses[1]->quadList()[0]->quadRect());

     // Verify it added the right quads.
     ASSERT_EQ(2u, frame.renderPasses[2]->quadList().size());
     EXPECT_RECT_EQ(IntRect(0, 0, 7, 7), frame.renderPasses[2]->quadList()[0]->quadRect());
     EXPECT_RECT_EQ(IntRect(6, 6, 6, 6), frame.renderPasses[2]->quadList()[1]->quadRect());
     ASSERT_EQ(1u, frame.renderPasses[1]->quadList().size());
     EXPECT_RECT_EQ(IntRect(0, 0, 6, 6), frame.renderPasses[1]->quadList()[0]->quadRect());
 }

 TEST_F(CCDelegatedRendererLayerImplTestOwnSurface, AddsQuadsToTargetRenderPass)
 {
     CCLayerTreeHostImpl::FrameData frame;
     EXPECT_TRUE(m_hostImpl->prepareToDraw(frame));
     m_hostImpl->drawLayers(frame);
     m_hostImpl->didDrawAllLayers(frame);

     // Each non-DelegatedRendererLayer added one RenderPass. The DelegatedRendererLayer added two contributing passes and its owned surface added one pass.
     ASSERT_EQ(6u, frame.renderPasses.size());

     // The layer's target is the RenderPass owned by itself.
     EXPECT_EQ(CCRenderPass::Id(4, 0), frame.renderPasses[3]->id());

     // The DelegatedRendererLayer should have added copies of quads in its root RenderPass to its target RenderPass.
     // The m_layerAfter also adds one quad.
     ASSERT_EQ(1u, frame.renderPasses[3]->quadList().size());

     // Verify it added the right quads.
     EXPECT_RECT_EQ(IntRect(7, 7, 7, 7), frame.renderPasses[3]->quadList()[0]->quadRect());
 }

 TEST_F(CCDelegatedRendererLayerImplTestOwnSurface, QuadsFromRootRenderPassAreNotModifiedForTheTarget)
 {
     CCLayerTreeHostImpl::FrameData frame;
     EXPECT_TRUE(m_hostImpl->prepareToDraw(frame));
     m_hostImpl->drawLayers(frame);
     m_hostImpl->didDrawAllLayers(frame);

     // Each non-DelegatedRendererLayer added one RenderPass. The DelegatedRendererLayer added two contributing passes and its owned surface added one pass.
     ASSERT_EQ(6u, frame.renderPasses.size());

     // Because the DelegatedRendererLayer owns a RenderSurface, its root RenderPass' quads do not need to be
     // modified at all.
     EXPECT_TRANSFORMATION_MATRIX_EQ(WebTransformationMatrix(), frame.renderPasses[3]->quadList()[0]->quadTransform());

     // Quads from non-root RenderPasses should not be shifted though.
     ASSERT_EQ(2u, frame.renderPasses[2]->quadList().size());
     EXPECT_TRANSFORMATION_MATRIX_EQ(WebTransformationMatrix(), frame.renderPasses[2]->quadList()[0]->quadTransform());
     EXPECT_TRANSFORMATION_MATRIX_EQ(WebTransformationMatrix(), frame.renderPasses[2]->quadList()[1]->quadTransform());
     ASSERT_EQ(1u, frame.renderPasses[1]->quadList().size());
     EXPECT_TRANSFORMATION_MATRIX_EQ(WebTransformationMatrix(), frame.renderPasses[1]->quadList()[0]->quadTransform());
 }

 class CCDelegatedRendererLayerImplTestSharedData : public CCDelegatedRendererLayerImplTest {
 public:
     CCDelegatedRendererLayerImplTestSharedData()
         : CCDelegatedRendererLayerImplTest()
     {
         scoped_ptr<CCLayerImpl> rootLayer = CCLayerImpl::create(1);
         scoped_ptr<CCDelegatedRendererLayerImpl> delegatedRendererLayer = CCDelegatedRendererLayerImpl::create(2);

         m_hostImpl->setViewportSize(IntSize(100, 100), IntSize(100, 100));
         rootLayer->setBounds(IntSize(100, 100));

         delegatedRendererLayer->setPosition(IntPoint(20, 20));
         delegatedRendererLayer->setBounds(IntSize(20, 20));
         delegatedRendererLayer->setContentBounds(IntSize(20, 20));
         delegatedRendererLayer->setDrawsContent(true);
         WebTransformationMatrix transform;
         transform.translate(10, 10);
         delegatedRendererLayer->setTransform(transform);

         ScopedPtrVector<CCRenderPass> delegatedRenderPasses;
         IntRect passRect(0, 0, 50, 50);
         CCTestRenderPass* pass = addRenderPass(delegatedRenderPasses, CCRenderPass::Id(9, 6), passRect, WebTransformationMatrix());
         MockCCQuadCuller quadSink(pass->quadList(), pass->sharedQuadStateList());
         CCAppendQuadsData data(pass->id());
         CCSharedQuadState* sharedState = quadSink.useSharedQuadState(CCSharedQuadState::create(WebTransformationMatrix(), passRect, passRect, 1, false));
         quadSink.append(CCSolidColorDrawQuad::create(sharedState, IntRect(0, 0, 10, 10), 1u).PassAs<CCDrawQuad>(), data);
         quadSink.append(CCSolidColorDrawQuad::create(sharedState, IntRect(0, 10, 10, 10), 2u).PassAs<CCDrawQuad>(), data);
         quadSink.append(CCSolidColorDrawQuad::create(sharedState, IntRect(10, 0, 10, 10), 3u).PassAs<CCDrawQuad>(), data);
         quadSink.append(CCSolidColorDrawQuad::create(sharedState, IntRect(10, 10, 10, 10), 4u).PassAs<CCDrawQuad>(), data);
         delegatedRendererLayer->setRenderPasses(delegatedRenderPasses);

         // The RenderPasses should be taken by the layer.
         EXPECT_EQ(0u, delegatedRenderPasses.size());

         m_rootLayerPtr = rootLayer.get();
         m_delegatedRendererLayerPtr = delegatedRendererLayer.get();

         rootLayer->addChild(delegatedRendererLayer.PassAs<CCLayerImpl>());

         m_hostImpl->setRootLayer(rootLayer.Pass());
     }

 protected:
     CCLayerImpl* m_rootLayerPtr;
     CCDelegatedRendererLayerImpl* m_delegatedRendererLayerPtr;
 };

 TEST_F(CCDelegatedRendererLayerImplTestSharedData, SharedData)
 {
     CCLayerTreeHostImpl::FrameData frame;
     EXPECT_TRUE(m_hostImpl->prepareToDraw(frame));
     m_hostImpl->drawLayers(frame);
     m_hostImpl->didDrawAllLayers(frame);

     ASSERT_EQ(1u, frame.renderPasses.size());
     EXPECT_EQ(1, frame.renderPasses[0]->id().layerId);
     EXPECT_EQ(0, frame.renderPasses[0]->id().index);

     const CCQuadList& quadList = frame.renderPasses[0]->quadList();
     ASSERT_EQ(4u, quadList.size());

     // All quads should share the same state.
     const CCSharedQuadState* sharedState = quadList[0]->sharedQuadState();
     EXPECT_EQ(sharedState, quadList[1]->sharedQuadState());
     EXPECT_EQ(sharedState, quadList[2]->sharedQuadState());
     EXPECT_EQ(sharedState, quadList[3]->sharedQuadState());

     // The state should be transformed only once.
     EXPECT_RECT_EQ(IntRect(30, 30, 50, 50), sharedState->clippedRectInTarget);
     WebTransformationMatrix expected;
     expected.translate(30, 30);
     EXPECT_TRANSFORMATION_MATRIX_EQ(expected, sharedState->quadTransform);
 }

 } // namespace
	// Copyright 2012 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 "config.h"

	#include "CCDelegatedRendererLayerImpl.h"

	#include "CCAppendQuadsData.h"
	#include "CCLayerTreeHostImpl.h"
	#include "CCQuadSink.h"
	#include "CCRenderPassDrawQuad.h"
	#include "CCSingleThreadProxy.h"
	#include "CCSolidColorDrawQuad.h"
	#include "CCSolidColorLayerImpl.h"
	#include "cc/scoped_ptr_vector.h"
	#include "cc/test/fake_web_compositor_output_surface.h"
	#include "cc/test/fake_web_graphics_context_3d.h"
	#include "cc/test/geometry_test_utils.h"
	#include "cc/test/mock_quad_culler.h"
	#include "cc/test/render_pass_test_common.h"
	#include "testing/gtest/include/gtest/gtest.h"
	#include <public/WebTransformationMatrix.h>

	using WebKit::FakeWebCompositorOutputSurface;
	using WebKit::FakeWebGraphicsContext3D;
	using WebKit::WebTransformationMatrix;

	using namespace cc;
	using namespace WebKitTests;

	namespace {

	class CCDelegatedRendererLayerImplTest : public testing::Test, public CCLayerTreeHostImplClient {
	public:
	CCDelegatedRendererLayerImplTest()
	{
	CCLayerTreeSettings settings;
	settings.minimumOcclusionTrackingSize = IntSize();

	m_hostImpl = CCLayerTreeHostImpl::create(settings, this);
	m_hostImpl->initializeRenderer(createContext());
	m_hostImpl->setViewportSize(IntSize(10, 10), IntSize(10, 10));
	}

	// CCLayerTreeHostImplClient implementation.
	virtual void didLoseContextOnImplThread() OVERRIDE { }
	virtual void onSwapBuffersCompleteOnImplThread() OVERRIDE { }
	virtual void onVSyncParametersChanged(double, double) OVERRIDE { }
	virtual void onCanDrawStateChanged(bool) OVERRIDE { }
	virtual void setNeedsRedrawOnImplThread() OVERRIDE { }
	virtual void setNeedsCommitOnImplThread() OVERRIDE { }
	virtual void postAnimationEventsToMainThreadOnImplThread(scoped_ptr<CCAnimationEventsVector>, double wallClockTime) OVERRIDE { }
	virtual bool reduceContentsTextureMemoryOnImplThread(size_t limitBytes) OVERRIDE { return true; }

	protected:
	scoped_ptr<CCGraphicsContext> createContext()
	{
	return FakeWebCompositorOutputSurface::create(adoptPtr(new FakeWebGraphicsContext3D)).PassAs<CCGraphicsContext>();
	}

	DebugScopedSetImplThread m_alwaysImplThread;
	DebugScopedSetMainThreadBlocked m_alwaysMainThreadBlocked;

	scoped_ptr<CCLayerTreeHostImpl> m_hostImpl;
	};

	static CCTestRenderPass* addRenderPass(ScopedPtrVector<CCRenderPass>& passList, CCRenderPass::Id id, IntRect outputRect, WebTransformationMatrix rootTransform)
	{
	scoped_ptr<CCRenderPass> pass(CCRenderPass::create(id, outputRect, rootTransform));
	CCTestRenderPass* testPass = static_cast<CCTestRenderPass*>(pass.get());
	passList.append(pass.Pass());
	return testPass;
	}

	static CCSolidColorDrawQuad* addQuad(CCTestRenderPass* pass, IntRect rect, SkColor color)
	{
	MockCCQuadCuller quadSink(pass->quadList(), pass->sharedQuadStateList());
	CCAppendQuadsData data(pass->id());
	CCSharedQuadState* sharedState = quadSink.useSharedQuadState(CCSharedQuadState::create(WebTransformationMatrix(), rect, rect, 1, false));
	scoped_ptr<CCSolidColorDrawQuad> quad = CCSolidColorDrawQuad::create(sharedState, rect, color);
	CCSolidColorDrawQuad* quadPtr = quad.get();
	quadSink.append(quad.PassAs<CCDrawQuad>(), data);
	return quadPtr;
	}

	static void addRenderPassQuad(CCTestRenderPass* toPass, CCTestRenderPass* contributingPass)
	{
	MockCCQuadCuller quadSink(toPass->quadList(), toPass->sharedQuadStateList());
	CCAppendQuadsData data(toPass->id());
	IntRect outputRect = contributingPass->outputRect();
	CCSharedQuadState* sharedState = quadSink.useSharedQuadState(CCSharedQuadState::create(WebTransformationMatrix(), outputRect, outputRect, 1, false));
	scoped_ptr<CCRenderPassDrawQuad> quad = CCRenderPassDrawQuad::create(sharedState, outputRect, contributingPass->id(), false, 0, outputRect, 0, 0, 0, 0);
	quadSink.append(quad.PassAs<CCDrawQuad>(), data);
	}

	class CCDelegatedRendererLayerImplTestSimple : public CCDelegatedRendererLayerImplTest {
	public:
	CCDelegatedRendererLayerImplTestSimple()
	: CCDelegatedRendererLayerImplTest()
	{
	scoped_ptr<CCLayerImpl> rootLayer = CCSolidColorLayerImpl::create(1).PassAs<CCLayerImpl>();
	scoped_ptr<CCLayerImpl> layerBefore = CCSolidColorLayerImpl::create(2).PassAs<CCLayerImpl>();
	scoped_ptr<CCLayerImpl> layerAfter = CCSolidColorLayerImpl::create(3).PassAs<CCLayerImpl>();
	scoped_ptr<CCDelegatedRendererLayerImpl> delegatedRendererLayer = CCDelegatedRendererLayerImpl::create(4);

	m_hostImpl->setViewportSize(IntSize(100, 100), IntSize(100, 100));
	rootLayer->setBounds(IntSize(100, 100));

	layerBefore->setPosition(IntPoint(20, 20));
	layerBefore->setBounds(IntSize(14, 14));
	layerBefore->setContentBounds(IntSize(14, 14));
	layerBefore->setDrawsContent(true);
	layerBefore->setForceRenderSurface(true);

	layerAfter->setPosition(IntPoint(5, 5));
	layerAfter->setBounds(IntSize(15, 15));
	layerAfter->setContentBounds(IntSize(15, 15));
	layerAfter->setDrawsContent(true);
	layerAfter->setForceRenderSurface(true);

	delegatedRendererLayer->setPosition(IntPoint(3, 3));
	delegatedRendererLayer->setBounds(IntSize(10, 10));
	delegatedRendererLayer->setContentBounds(IntSize(10, 10));
	delegatedRendererLayer->setDrawsContent(true);
	WebTransformationMatrix transform;
	transform.translate(1, 1);
	delegatedRendererLayer->setTransform(transform);

	ScopedPtrVector<CCRenderPass> delegatedRenderPasses;
	CCTestRenderPass* pass1 = addRenderPass(delegatedRenderPasses, CCRenderPass::Id(9, 6), IntRect(6, 6, 6, 6), WebTransformationMatrix());
	addQuad(pass1, IntRect(0, 0, 6, 6), 33u);
	CCTestRenderPass* pass2 = addRenderPass(delegatedRenderPasses, CCRenderPass::Id(9, 7), IntRect(7, 7, 7, 7), WebTransformationMatrix());
	addQuad(pass2, IntRect(0, 0, 7, 7), 22u);
	addRenderPassQuad(pass2, pass1);
	CCTestRenderPass* pass3 = addRenderPass(delegatedRenderPasses, CCRenderPass::Id(9, 8), IntRect(8, 8, 8, 8), WebTransformationMatrix());
	addRenderPassQuad(pass3, pass2);
	delegatedRendererLayer->setRenderPasses(delegatedRenderPasses);

	// The RenderPasses should be taken by the layer.
	EXPECT_EQ(0u, delegatedRenderPasses.size());

	m_rootLayerPtr = rootLayer.get();
	m_layerBeforePtr = layerBefore.get();
	m_layerAfterPtr = layerAfter.get();
	m_delegatedRendererLayerPtr = delegatedRendererLayer.get();

	// Force the delegated RenderPasses to come before the RenderPass from layerAfter.
	layerAfter->addChild(delegatedRendererLayer.PassAs<CCLayerImpl>());
	rootLayer->addChild(layerAfter.Pass());

	// Get the RenderPass generated by layerBefore to come before the delegated RenderPasses.
	rootLayer->addChild(layerBefore.Pass());

	m_hostImpl->setRootLayer(rootLayer.Pass());
	}

	protected:
	CCLayerImpl* m_rootLayerPtr;
	CCLayerImpl* m_layerBeforePtr;
	CCLayerImpl* m_layerAfterPtr;
	CCDelegatedRendererLayerImpl* m_delegatedRendererLayerPtr;
	};

	TEST_F(CCDelegatedRendererLayerImplTestSimple, AddsContributingRenderPasses)
	{
	CCLayerTreeHostImpl::FrameData frame;
	EXPECT_TRUE(m_hostImpl->prepareToDraw(frame));
	m_hostImpl->drawLayers(frame);
	m_hostImpl->didDrawAllLayers(frame);

	// Each non-DelegatedRendererLayer added one RenderPass. The DelegatedRendererLayer added two contributing passes.
	ASSERT_EQ(5u, frame.renderPasses.size());

	// The DelegatedRendererLayer should have added its contributing RenderPasses to the frame.
	EXPECT_EQ(4, frame.renderPasses[1]->id().layerId);
	EXPECT_EQ(1, frame.renderPasses[1]->id().index);
	EXPECT_EQ(4, frame.renderPasses[2]->id().layerId);
	EXPECT_EQ(2, frame.renderPasses[2]->id().index);
	// And all other RenderPasses should be non-delegated.
	EXPECT_NE(4, frame.renderPasses[0]->id().layerId);
	EXPECT_EQ(0, frame.renderPasses[0]->id().index);
	EXPECT_NE(4, frame.renderPasses[3]->id().layerId);
	EXPECT_EQ(0, frame.renderPasses[3]->id().index);
	EXPECT_NE(4, frame.renderPasses[4]->id().layerId);
	EXPECT_EQ(0, frame.renderPasses[4]->id().index);

	// The DelegatedRendererLayer should have added its RenderPasses to the frame in order.
	EXPECT_RECT_EQ(IntRect(6, 6, 6, 6), frame.renderPasses[1]->outputRect());
	EXPECT_RECT_EQ(IntRect(7, 7, 7, 7), frame.renderPasses[2]->outputRect());
	}

	TEST_F(CCDelegatedRendererLayerImplTestSimple, AddsQuadsToContributingRenderPasses)
	{
	CCLayerTreeHostImpl::FrameData frame;
	EXPECT_TRUE(m_hostImpl->prepareToDraw(frame));
	m_hostImpl->drawLayers(frame);
	m_hostImpl->didDrawAllLayers(frame);

	// Each non-DelegatedRendererLayer added one RenderPass. The DelegatedRendererLayer added two contributing passes.
	ASSERT_EQ(5u, frame.renderPasses.size());

	// The DelegatedRendererLayer should have added its contributing RenderPasses to the frame.
	EXPECT_EQ(4, frame.renderPasses[1]->id().layerId);
	EXPECT_EQ(1, frame.renderPasses[1]->id().index);
	EXPECT_EQ(4, frame.renderPasses[2]->id().layerId);
	EXPECT_EQ(2, frame.renderPasses[2]->id().index);

	// The DelegatedRendererLayer should have added copies of its quads to contributing RenderPasses.
	ASSERT_EQ(1u, frame.renderPasses[1]->quadList().size());
	EXPECT_RECT_EQ(IntRect(0, 0, 6, 6), frame.renderPasses[1]->quadList()[0]->quadRect());

	// Verify it added the right quads.
	ASSERT_EQ(2u, frame.renderPasses[2]->quadList().size());
	EXPECT_RECT_EQ(IntRect(0, 0, 7, 7), frame.renderPasses[2]->quadList()[0]->quadRect());
	EXPECT_RECT_EQ(IntRect(6, 6, 6, 6), frame.renderPasses[2]->quadList()[1]->quadRect());
	ASSERT_EQ(1u, frame.renderPasses[1]->quadList().size());
	EXPECT_RECT_EQ(IntRect(0, 0, 6, 6), frame.renderPasses[1]->quadList()[0]->quadRect());
	}

	TEST_F(CCDelegatedRendererLayerImplTestSimple, AddsQuadsToTargetRenderPass)
	{
	CCLayerTreeHostImpl::FrameData frame;
	EXPECT_TRUE(m_hostImpl->prepareToDraw(frame));
	m_hostImpl->drawLayers(frame);
	m_hostImpl->didDrawAllLayers(frame);

	// Each non-DelegatedRendererLayer added one RenderPass. The DelegatedRendererLayer added two contributing passes.
	ASSERT_EQ(5u, frame.renderPasses.size());

	// The layer's target is the RenderPass from m_layerAfter.
	EXPECT_EQ(CCRenderPass::Id(3, 0), frame.renderPasses[3]->id());

	// The DelegatedRendererLayer should have added copies of quads in its root RenderPass to its target RenderPass.
	// The m_layerAfter also adds one quad.
	ASSERT_EQ(2u, frame.renderPasses[3]->quadList().size());

	// Verify it added the right quads.
	EXPECT_RECT_EQ(IntRect(7, 7, 7, 7), frame.renderPasses[3]->quadList()[0]->quadRect());

	// Its target layer should have a quad as well.
	EXPECT_RECT_EQ(IntRect(0, 0, 15, 15), frame.renderPasses[3]->quadList()[1]->quadRect());
	}

	TEST_F(CCDelegatedRendererLayerImplTestSimple, QuadsFromRootRenderPassAreModifiedForTheTarget)
	{
	CCLayerTreeHostImpl::FrameData frame;
	EXPECT_TRUE(m_hostImpl->prepareToDraw(frame));
	m_hostImpl->drawLayers(frame);
	m_hostImpl->didDrawAllLayers(frame);

	// Each non-DelegatedRendererLayer added one RenderPass. The DelegatedRendererLayer added two contributing passes.
	ASSERT_EQ(5u, frame.renderPasses.size());

	// The DelegatedRendererLayer is at position 3,3 compared to its target, and has a translation transform of 1,1.
	// So its root RenderPass' quads should all be transformed by that combined amount.
	WebTransformationMatrix transform;
	transform.translate(4, 4);
	EXPECT_TRANSFORMATION_MATRIX_EQ(transform, frame.renderPasses[3]->quadList()[0]->quadTransform());

	// Quads from non-root RenderPasses should not be shifted though.
	ASSERT_EQ(2u, frame.renderPasses[2]->quadList().size());
	EXPECT_TRANSFORMATION_MATRIX_EQ(WebTransformationMatrix(), frame.renderPasses[2]->quadList()[0]->quadTransform());
	EXPECT_TRANSFORMATION_MATRIX_EQ(WebTransformationMatrix(), frame.renderPasses[2]->quadList()[1]->quadTransform());
	ASSERT_EQ(1u, frame.renderPasses[1]->quadList().size());
	EXPECT_TRANSFORMATION_MATRIX_EQ(WebTransformationMatrix(), frame.renderPasses[1]->quadList()[0]->quadTransform());
	}

	class CCDelegatedRendererLayerImplTestOwnSurface : public CCDelegatedRendererLayerImplTestSimple {
	public:
	CCDelegatedRendererLayerImplTestOwnSurface()
	: CCDelegatedRendererLayerImplTestSimple()
	{
	m_delegatedRendererLayerPtr->setForceRenderSurface(true);
	}
	};

	TEST_F(CCDelegatedRendererLayerImplTestOwnSurface, AddsRenderPasses)
	{
	CCLayerTreeHostImpl::FrameData frame;
	EXPECT_TRUE(m_hostImpl->prepareToDraw(frame));
	m_hostImpl->drawLayers(frame);
	m_hostImpl->didDrawAllLayers(frame);

	// Each non-DelegatedRendererLayer added one RenderPass. The DelegatedRendererLayer added two contributing passes and its owned surface added one pass.
	ASSERT_EQ(6u, frame.renderPasses.size());

	// The DelegatedRendererLayer should have added its contributing RenderPasses to the frame.
	EXPECT_EQ(4, frame.renderPasses[1]->id().layerId);
	EXPECT_EQ(1, frame.renderPasses[1]->id().index);
	EXPECT_EQ(4, frame.renderPasses[2]->id().layerId);
	EXPECT_EQ(2, frame.renderPasses[2]->id().index);
	// The DelegatedRendererLayer should have added a RenderPass for its surface to the frame.
	EXPECT_EQ(4, frame.renderPasses[1]->id().layerId);
	EXPECT_EQ(0, frame.renderPasses[3]->id().index);
	// And all other RenderPasses should be non-delegated.
	EXPECT_NE(4, frame.renderPasses[0]->id().layerId);
	EXPECT_EQ(0, frame.renderPasses[0]->id().index);
	EXPECT_NE(4, frame.renderPasses[4]->id().layerId);
	EXPECT_EQ(0, frame.renderPasses[4]->id().index);
	EXPECT_NE(4, frame.renderPasses[5]->id().layerId);
	EXPECT_EQ(0, frame.renderPasses[5]->id().index);

	// The DelegatedRendererLayer should have added its RenderPasses to the frame in order.
	EXPECT_RECT_EQ(IntRect(6, 6, 6, 6), frame.renderPasses[1]->outputRect());
	EXPECT_RECT_EQ(IntRect(7, 7, 7, 7), frame.renderPasses[2]->outputRect());
	}

	TEST_F(CCDelegatedRendererLayerImplTestOwnSurface, AddsQuadsToContributingRenderPasses)
	{
	CCLayerTreeHostImpl::FrameData frame;
	EXPECT_TRUE(m_hostImpl->prepareToDraw(frame));
	m_hostImpl->drawLayers(frame);
	m_hostImpl->didDrawAllLayers(frame);

	// Each non-DelegatedRendererLayer added one RenderPass. The DelegatedRendererLayer added two contributing passes and its owned surface added one pass.
	ASSERT_EQ(6u, frame.renderPasses.size());

	// The DelegatedRendererLayer should have added its contributing RenderPasses to the frame.
	EXPECT_EQ(4, frame.renderPasses[1]->id().layerId);
	EXPECT_EQ(1, frame.renderPasses[1]->id().index);
	EXPECT_EQ(4, frame.renderPasses[2]->id().layerId);
	EXPECT_EQ(2, frame.renderPasses[2]->id().index);

	// The DelegatedRendererLayer should have added copies of its quads to contributing RenderPasses.
	ASSERT_EQ(1u, frame.renderPasses[1]->quadList().size());
	EXPECT_RECT_EQ(IntRect(0, 0, 6, 6), frame.renderPasses[1]->quadList()[0]->quadRect());

	// Verify it added the right quads.
	ASSERT_EQ(2u, frame.renderPasses[2]->quadList().size());
	EXPECT_RECT_EQ(IntRect(0, 0, 7, 7), frame.renderPasses[2]->quadList()[0]->quadRect());
	EXPECT_RECT_EQ(IntRect(6, 6, 6, 6), frame.renderPasses[2]->quadList()[1]->quadRect());
	ASSERT_EQ(1u, frame.renderPasses[1]->quadList().size());
	EXPECT_RECT_EQ(IntRect(0, 0, 6, 6), frame.renderPasses[1]->quadList()[0]->quadRect());
	}

	TEST_F(CCDelegatedRendererLayerImplTestOwnSurface, AddsQuadsToTargetRenderPass)
	{
	CCLayerTreeHostImpl::FrameData frame;
	EXPECT_TRUE(m_hostImpl->prepareToDraw(frame));
	m_hostImpl->drawLayers(frame);
	m_hostImpl->didDrawAllLayers(frame);

	// Each non-DelegatedRendererLayer added one RenderPass. The DelegatedRendererLayer added two contributing passes and its owned surface added one pass.
	ASSERT_EQ(6u, frame.renderPasses.size());

	// The layer's target is the RenderPass owned by itself.
	EXPECT_EQ(CCRenderPass::Id(4, 0), frame.renderPasses[3]->id());

	// The DelegatedRendererLayer should have added copies of quads in its root RenderPass to its target RenderPass.
	// The m_layerAfter also adds one quad.
	ASSERT_EQ(1u, frame.renderPasses[3]->quadList().size());

	// Verify it added the right quads.
	EXPECT_RECT_EQ(IntRect(7, 7, 7, 7), frame.renderPasses[3]->quadList()[0]->quadRect());
	}

	TEST_F(CCDelegatedRendererLayerImplTestOwnSurface, QuadsFromRootRenderPassAreNotModifiedForTheTarget)
	{
	CCLayerTreeHostImpl::FrameData frame;
	EXPECT_TRUE(m_hostImpl->prepareToDraw(frame));
	m_hostImpl->drawLayers(frame);
	m_hostImpl->didDrawAllLayers(frame);

	// Each non-DelegatedRendererLayer added one RenderPass. The DelegatedRendererLayer added two contributing passes and its owned surface added one pass.
	ASSERT_EQ(6u, frame.renderPasses.size());

	// Because the DelegatedRendererLayer owns a RenderSurface, its root RenderPass' quads do not need to be
	// modified at all.
	EXPECT_TRANSFORMATION_MATRIX_EQ(WebTransformationMatrix(), frame.renderPasses[3]->quadList()[0]->quadTransform());

	// Quads from non-root RenderPasses should not be shifted though.
	ASSERT_EQ(2u, frame.renderPasses[2]->quadList().size());
	EXPECT_TRANSFORMATION_MATRIX_EQ(WebTransformationMatrix(), frame.renderPasses[2]->quadList()[0]->quadTransform());
	EXPECT_TRANSFORMATION_MATRIX_EQ(WebTransformationMatrix(), frame.renderPasses[2]->quadList()[1]->quadTransform());
	ASSERT_EQ(1u, frame.renderPasses[1]->quadList().size());
	EXPECT_TRANSFORMATION_MATRIX_EQ(WebTransformationMatrix(), frame.renderPasses[1]->quadList()[0]->quadTransform());
	}

	class CCDelegatedRendererLayerImplTestSharedData : public CCDelegatedRendererLayerImplTest {
	public:
	CCDelegatedRendererLayerImplTestSharedData()
	: CCDelegatedRendererLayerImplTest()
	{
	scoped_ptr<CCLayerImpl> rootLayer = CCLayerImpl::create(1);
	scoped_ptr<CCDelegatedRendererLayerImpl> delegatedRendererLayer = CCDelegatedRendererLayerImpl::create(2);

	m_hostImpl->setViewportSize(IntSize(100, 100), IntSize(100, 100));
	rootLayer->setBounds(IntSize(100, 100));

	delegatedRendererLayer->setPosition(IntPoint(20, 20));
	delegatedRendererLayer->setBounds(IntSize(20, 20));
	delegatedRendererLayer->setContentBounds(IntSize(20, 20));
	delegatedRendererLayer->setDrawsContent(true);
	WebTransformationMatrix transform;
	transform.translate(10, 10);
	delegatedRendererLayer->setTransform(transform);

	ScopedPtrVector<CCRenderPass> delegatedRenderPasses;
	IntRect passRect(0, 0, 50, 50);
	CCTestRenderPass* pass = addRenderPass(delegatedRenderPasses, CCRenderPass::Id(9, 6), passRect, WebTransformationMatrix());
	MockCCQuadCuller quadSink(pass->quadList(), pass->sharedQuadStateList());
	CCAppendQuadsData data(pass->id());
	CCSharedQuadState* sharedState = quadSink.useSharedQuadState(CCSharedQuadState::create(WebTransformationMatrix(), passRect, passRect, 1, false));
	quadSink.append(CCSolidColorDrawQuad::create(sharedState, IntRect(0, 0, 10, 10), 1u).PassAs<CCDrawQuad>(), data);
	quadSink.append(CCSolidColorDrawQuad::create(sharedState, IntRect(0, 10, 10, 10), 2u).PassAs<CCDrawQuad>(), data);
	quadSink.append(CCSolidColorDrawQuad::create(sharedState, IntRect(10, 0, 10, 10), 3u).PassAs<CCDrawQuad>(), data);
	quadSink.append(CCSolidColorDrawQuad::create(sharedState, IntRect(10, 10, 10, 10), 4u).PassAs<CCDrawQuad>(), data);
	delegatedRendererLayer->setRenderPasses(delegatedRenderPasses);

	// The RenderPasses should be taken by the layer.
	EXPECT_EQ(0u, delegatedRenderPasses.size());

	m_rootLayerPtr = rootLayer.get();
	m_delegatedRendererLayerPtr = delegatedRendererLayer.get();

	rootLayer->addChild(delegatedRendererLayer.PassAs<CCLayerImpl>());

	m_hostImpl->setRootLayer(rootLayer.Pass());
	}

	protected:
	CCLayerImpl* m_rootLayerPtr;
	CCDelegatedRendererLayerImpl* m_delegatedRendererLayerPtr;
	};

	TEST_F(CCDelegatedRendererLayerImplTestSharedData, SharedData)
	{
	CCLayerTreeHostImpl::FrameData frame;
	EXPECT_TRUE(m_hostImpl->prepareToDraw(frame));
	m_hostImpl->drawLayers(frame);
	m_hostImpl->didDrawAllLayers(frame);

	ASSERT_EQ(1u, frame.renderPasses.size());
	EXPECT_EQ(1, frame.renderPasses[0]->id().layerId);
	EXPECT_EQ(0, frame.renderPasses[0]->id().index);

	const CCQuadList& quadList = frame.renderPasses[0]->quadList();
	ASSERT_EQ(4u, quadList.size());

	// All quads should share the same state.
	const CCSharedQuadState* sharedState = quadList[0]->sharedQuadState();
	EXPECT_EQ(sharedState, quadList[1]->sharedQuadState());
	EXPECT_EQ(sharedState, quadList[2]->sharedQuadState());
	EXPECT_EQ(sharedState, quadList[3]->sharedQuadState());

	// The state should be transformed only once.
	EXPECT_RECT_EQ(IntRect(30, 30, 50, 50), sharedState->clippedRectInTarget);
	WebTransformationMatrix expected;
	expected.translate(30, 30);
	EXPECT_TRANSFORMATION_MATRIX_EQ(expected, sharedState->quadTransform);
	}

	} // namespace