Add the ubercomp DelegatedRendererLayer.

cc/CCDelegatedRendererLayerImplTest.cpp

Index: cc/CCDelegatedRendererLayerImplTest.cpp
diff --git a/cc/CCDelegatedRendererLayerImplTest.cpp b/cc/CCDelegatedRendererLayerImplTest.cpp
new file mode 100644
index 0000000000000000000000000000000000000000..e5fcdc8a8b34cb99c84713e0c63201bd2dd51dcc
--- /dev/null
+++ b/cc/CCDelegatedRendererLayerImplTest.cpp
@@ -0,0 +1,379 @@
+// 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 "CCGeometryTestUtils.h"
+#include "CCLayerTreeHostImpl.h"
+#include "CCQuadSink.h"
+#include "CCRenderPassDrawQuad.h"
+#include "CCRenderPassTestCommon.h"
+#include "CCSingleThreadProxy.h"
+#include "CCSolidColorDrawQuad.h"
+#include "CCSolidColorLayerImpl.h"
+#include "FakeWebCompositorOutputSurface.h"
+#include "FakeWebGraphicsContext3D.h"
+#include "MockCCQuadCuller.h"
+#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(), UnthrottledUploader);
+        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(PassOwnPtr<CCAnimationEventsVector>, double wallClockTime) OVERRIDE { }
+    virtual void releaseContentsTexturesOnImplThread() OVERRIDE { }
+
+protected:
+    PassOwnPtr<CCGraphicsContext> createContext()
+    {
+        return FakeWebCompositorOutputSurface::create(adoptPtr(new FakeWebGraphicsContext3D));
+    }
+
+    DebugScopedSetImplThread m_alwaysImplThread;
+    DebugScopedSetMainThreadBlocked m_alwaysMainThreadBlocked;
+
+    OwnPtr<CCLayerTreeHostImpl> m_hostImpl;
+};
+
+static CCTestRenderPass* addRenderPass(OwnPtrVector<CCRenderPass>& passList, CCRenderPass::Id id, IntRect outputRect, WebTransformationMatrix rootTransform)
+{
+    OwnPtr<CCRenderPass> pass(CCRenderPass::create(id, outputRect, rootTransform));
+    CCTestRenderPass* testPass = static_cast<CCTestRenderPass*>(pass.get());
+    passList.append(pass.release());
+    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));
+    OwnPtr<CCSolidColorDrawQuad> quad(CCSolidColorDrawQuad::create(sharedState, rect, color));
+    CCSolidColorDrawQuad* quadPtr = quad.get();
+    quadSink.append(quad.release(), 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));
+    OwnPtr<CCRenderPassDrawQuad> quad(CCRenderPassDrawQuad::create(sharedState, outputRect, contributingPass->id(), false, 0, outputRect, 0, 0, 0, 0));
+    quadSink.append(quad.release(), data);
+}
+
+class CCDelegatedRendererLayerImplTestSimple : public CCDelegatedRendererLayerImplTest {
+public:
+    CCDelegatedRendererLayerImplTestSimple()
+        : CCDelegatedRendererLayerImplTest()
+    {
+        OwnPtr<CCSolidColorLayerImpl> rootLayer = CCSolidColorLayerImpl::create(1);
+        OwnPtr<CCSolidColorLayerImpl> layerBefore = CCSolidColorLayerImpl::create(2);
+        OwnPtr<CCSolidColorLayerImpl> layerAfter = CCSolidColorLayerImpl::create(3);
+        OwnPtr<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);
+
+        OwnPtrVector<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.release());
+        rootLayer->addChild(layerAfter.release());
+
+        // Get the RenderPass generated by layerBefore to come before the delegated RenderPasses.
+        rootLayer->addChild(layerBefore.release());
+
+        m_hostImpl->setRootLayer(rootLayer.release());
+    }
+
+protected:
+    CCSolidColorLayerImpl* m_rootLayerPtr;
+    CCSolidColorLayerImpl* m_layerBeforePtr;
+    CCSolidColorLayerImpl* 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());
+}
+
+} // namespace