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Commit 3e846409 authored by Android Build Coastguard Worker's avatar Android Build Coastguard Worker
Browse files

Snap for 7620055 from 810d1937 to sc-release 

Change-Id: Ie20fa26a11aa973909bfc0b42e7b861df4039b24
parents 3c88bbda 810d1937

services/surfaceflinger/BufferStateLayer.cpp

+2 −17
Original line number Diff line number Diff line
@@ -425,7 +425,8 @@ bool BufferStateLayer::setBuffer(const std::shared_ptr<renderengine::ExternalTex 


    if (mDrawingState.buffer) {

        mReleasePreviousBuffer = true;

        if (mDrawingState.buffer != mBufferInfo.mBuffer) {

        if (mDrawingState.buffer != mBufferInfo.mBuffer ||

            mDrawingState.frameNumber != mBufferInfo.mFrameNumber) {

            // If mDrawingState has a buffer, and we are about to update again

            // before swapping to drawing state, then the first buffer will be

            // dropped and we should decrement the pending buffer count and
@@ -963,22 +964,6 @@ void BufferStateLayer::tracePendingBufferCount(int32_t pendingBuffers) { 
    ATRACE_INT(mBlastTransactionName.c_str(), pendingBuffers);

}



void BufferStateLayer::bufferMayChange(const sp<GraphicBuffer>& newBuffer) {

    if (mDrawingState.buffer != nullptr &&

        (!mBufferInfo.mBuffer ||

         mDrawingState.buffer->getBuffer() != mBufferInfo.mBuffer->getBuffer()) &&

        newBuffer != mDrawingState.buffer->getBuffer()) {

        // If we are about to update mDrawingState.buffer but it has not yet latched

        // then we will drop a buffer and should decrement the pending buffer count and

        // call any release buffer callbacks if set.

        callReleaseBufferCallback(mDrawingState.releaseBufferListener,

                                  mDrawingState.buffer->getBuffer(), mDrawingState.frameNumber,

                                  mDrawingState.acquireFence, mTransformHint,

                                  mFlinger->getMaxAcquiredBufferCountForCurrentRefreshRate(

                                          mOwnerUid));

        decrementPendingBufferCount();

    }

}



/*

 * We don't want to send the layer's transform to input, but rather the

services/surfaceflinger/BufferStateLayer.h

+0 −1
Original line number Diff line number Diff line
@@ -97,7 +97,6 @@ public: 


    // See mPendingBufferTransactions

    void decrementPendingBufferCount();

    void bufferMayChange(const sp<GraphicBuffer>& newBuffer) override;

    std::atomic<int32_t>* getPendingBufferCounter() override { return &mPendingBufferTransactions; }

    std::string getPendingBufferCounterName() override { return mBlastTransactionName; }

services/surfaceflinger/Layer.cpp

+60 −66
Original line number Diff line number Diff line
@@ -1117,46 +1117,59 @@ StretchEffect Layer::getStretchEffect() const { 
    return StretchEffect{};

}



void Layer::updateTreeHasFrameRateVote() {

    const auto traverseTree = [&](const LayerVector::Visitor& visitor) {

        auto parent = getParent();

        while (parent) {

            visitor(parent.get());

            parent = parent->getParent();

bool Layer::propagateFrameRateForLayerTree(FrameRate parentFrameRate, bool* transactionNeeded) {

    // The frame rate for layer tree is this layer's frame rate if present, or the parent frame rate

    const auto frameRate = [&] {

        if (mDrawingState.frameRate.rate.isValid() ||

            mDrawingState.frameRate.type == FrameRateCompatibility::NoVote) {

            return mDrawingState.frameRate;

        }



        traverse(LayerVector::StateSet::Current, visitor);

    };

        return parentFrameRate;

    }();



    // update parents and children about the vote

    // First traverse the tree and count how many layers has votes.

    int layersWithVote = 0;

    traverseTree([&layersWithVote](Layer* layer) {

    *transactionNeeded |= setFrameRateForLayerTree(frameRate);



    // The frame rate is propagated to the children

    bool childrenHaveFrameRate = false;

    for (const sp<Layer>& child : mCurrentChildren) {

        childrenHaveFrameRate |=

                child->propagateFrameRateForLayerTree(frameRate, transactionNeeded);

    }



    // If we don't have a valid frame rate, but the children do, we set this

    // layer as NoVote to allow the children to control the refresh rate

    if (!frameRate.rate.isValid() && frameRate.type != FrameRateCompatibility::NoVote &&

        childrenHaveFrameRate) {

        *transactionNeeded |=

                setFrameRateForLayerTree(FrameRate(Fps(0.0f), FrameRateCompatibility::NoVote));

    }



    // We return whether this layer ot its children has a vote. We ignore ExactOrMultiple votes for

    // the same reason we are allowing touch boost for those layers. See

    // RefreshRateConfigs::getBestRefreshRate for more details.

    const auto layerVotedWithDefaultCompatibility =

                layer->mDrawingState.frameRate.rate.isValid() &&

                layer->mDrawingState.frameRate.type == FrameRateCompatibility::Default;

        const auto layerVotedWithNoVote =

                layer->mDrawingState.frameRate.type == FrameRateCompatibility::NoVote;

            frameRate.rate.isValid() && frameRate.type == FrameRateCompatibility::Default;

    const auto layerVotedWithNoVote = frameRate.type == FrameRateCompatibility::NoVote;

    const auto layerVotedWithExactCompatibility =

                layer->mDrawingState.frameRate.type == FrameRateCompatibility::Exact;

            frameRate.rate.isValid() && frameRate.type == FrameRateCompatibility::Exact;

    return layerVotedWithDefaultCompatibility || layerVotedWithNoVote ||

            layerVotedWithExactCompatibility || childrenHaveFrameRate;

}



        // We do not count layers that are ExactOrMultiple for the same reason

        // we are allowing touch boost for those layers. See

        // RefreshRateConfigs::getBestRefreshRate for more details.

        if (layerVotedWithDefaultCompatibility || layerVotedWithNoVote ||

            layerVotedWithExactCompatibility) {

            layersWithVote++;

void Layer::updateTreeHasFrameRateVote() {

    const auto root = [&]() -> sp<Layer> {

        sp<Layer> layer = this;

        while (auto parent = layer->getParent()) {

            layer = parent;

        }

    });

        return layer;

    }();



    // Now we can update the tree frame rate vote for each layer in the tree

    const bool treeHasFrameRateVote = layersWithVote > 0;

    bool transactionNeeded = false;

    root->propagateFrameRateForLayerTree({}, &transactionNeeded);



    traverseTree([treeHasFrameRateVote, &transactionNeeded](Layer* layer) {

        transactionNeeded = layer->updateFrameRateForLayerTree(treeHasFrameRateVote);

    });



    // TODO(b/195668952): we probably don't need eTraversalNeeded here

    if (transactionNeeded) {

        mFlinger->setTransactionFlags(eTraversalNeeded);

    }
@@ -1283,13 +1296,15 @@ std::shared_ptr<frametimeline::SurfaceFrame> Layer::createSurfaceFrameForBuffer( 
    return surfaceFrame;

}



bool Layer::updateFrameRateForLayerTree(bool treeHasFrameRateVote) {

    const auto updateDrawingState = [&](FrameRate frameRate) {

bool Layer::setFrameRateForLayerTree(FrameRate frameRate) {

    if (mDrawingState.frameRateForLayerTree == frameRate) {

        return false;

    }



    mDrawingState.frameRateForLayerTree = frameRate;



    // TODO(b/195668952): we probably don't need to dirty visible regions here

    // or even store frameRateForLayerTree in mDrawingState

    mDrawingState.sequence++;

    mDrawingState.modified = true;

    setTransactionFlags(eTransactionNeeded);
@@ -1298,27 +1313,6 @@ bool Layer::updateFrameRateForLayerTree(bool treeHasFrameRateVote) { 
                                             LayerHistory::LayerUpdateType::SetFrameRate);



    return true;

    };



    const auto frameRate = mDrawingState.frameRate;

    if (frameRate.rate.isValid() || frameRate.type == FrameRateCompatibility::NoVote) {

        return updateDrawingState(frameRate);

    }



    // This layer doesn't have a frame rate. Check if its ancestors have a vote

    for (sp<Layer> parent = getParent(); parent; parent = parent->getParent()) {

        if (parent->mDrawingState.frameRate.rate.isValid()) {

            return updateDrawingState(parent->mDrawingState.frameRate);

        }

    }



    // This layer and its ancestors don't have a frame rate. If one of successors

    // has a vote, return a NoVote for successors to set the vote

    if (treeHasFrameRateVote) {

        return updateDrawingState(FrameRate(Fps(0.0f), FrameRateCompatibility::NoVote));

    }



    return updateDrawingState(frameRate);

}



Layer::FrameRate Layer::getFrameRateForLayerTree() const {

services/surfaceflinger/Layer.h

+2 −8
Original line number Diff line number Diff line
@@ -702,12 +702,6 @@ public: 
     */

    virtual uint32_t doTransaction(uint32_t transactionFlags);



    /*

     * Called before updating the drawing state buffer. Used by BufferStateLayer to release any

     * unlatched buffers in the drawing state.

     */

    virtual void bufferMayChange(const sp<GraphicBuffer>& /* newBuffer */){};



    /*

     * Remove relative z for the layer if its relative parent is not part of the

     * provided layer tree.
@@ -1053,6 +1047,8 @@ private: 
                                          const std::vector<Layer*>& layersInTree);



    void updateTreeHasFrameRateVote();

    bool propagateFrameRateForLayerTree(FrameRate parentFrameRate, bool* transactionNeeded);

    bool setFrameRateForLayerTree(FrameRate);

    void setZOrderRelativeOf(const wp<Layer>& relativeOf);

    bool isTrustedOverlay() const;
@@ -1071,8 +1067,6 @@ private: 
    // Fills in the frame and transform info for the InputWindowInfo

    void fillInputFrameInfo(InputWindowInfo& info, const ui::Transform& toPhysicalDisplay);



    bool updateFrameRateForLayerTree(bool treeHasFrameRateVote);



    // Cached properties computed from drawing state

    // Effective transform taking into account parent transforms and any parent scaling, which is

    // a transform from the current layer coordinate space to display(screen) coordinate space.

services/surfaceflinger/tests/unittests/SetFrameRateTest.cpp

+35 −0
Original line number Diff line number Diff line
@@ -485,5 +485,40 @@ TEST_P(SetFrameRateTest, SetOnParentActivatesTree) { 
    EXPECT_TRUE(FRAME_RATE_VOTE1.rate.equalsWithMargin(layerHistorySummary[1].desiredRefreshRate));

}



TEST_P(SetFrameRateTest, addChildForParentWithTreeVote) {

    EXPECT_CALL(*mMessageQueue, invalidate()).Times(1);



    const auto& layerFactory = GetParam();



    const auto parent = mLayers.emplace_back(layerFactory->createLayer(mFlinger));

    const auto child1 = mLayers.emplace_back(layerFactory->createLayer(mFlinger));

    const auto child2 = mLayers.emplace_back(layerFactory->createLayer(mFlinger));

    const auto childOfChild1 = mLayers.emplace_back(layerFactory->createLayer(mFlinger));



    addChild(parent, child1);

    addChild(child1, childOfChild1);



    childOfChild1->setFrameRate(FRAME_RATE_VOTE1);

    commitTransaction();

    EXPECT_EQ(FRAME_RATE_TREE, parent->getFrameRateForLayerTree());

    EXPECT_EQ(FRAME_RATE_TREE, child1->getFrameRateForLayerTree());

    EXPECT_EQ(FRAME_RATE_VOTE1, childOfChild1->getFrameRateForLayerTree());

    EXPECT_EQ(FRAME_RATE_NO_VOTE, child2->getFrameRateForLayerTree());



    addChild(parent, child2);

    commitTransaction();

    EXPECT_EQ(FRAME_RATE_TREE, parent->getFrameRateForLayerTree());

    EXPECT_EQ(FRAME_RATE_TREE, child1->getFrameRateForLayerTree());

    EXPECT_EQ(FRAME_RATE_VOTE1, childOfChild1->getFrameRateForLayerTree());

    EXPECT_EQ(FRAME_RATE_NO_VOTE, child2->getFrameRateForLayerTree());



    childOfChild1->setFrameRate(FRAME_RATE_NO_VOTE);

    commitTransaction();

    EXPECT_EQ(FRAME_RATE_NO_VOTE, parent->getFrameRateForLayerTree());

    EXPECT_EQ(FRAME_RATE_NO_VOTE, child1->getFrameRateForLayerTree());

    EXPECT_EQ(FRAME_RATE_NO_VOTE, childOfChild1->getFrameRateForLayerTree());

    EXPECT_EQ(FRAME_RATE_NO_VOTE, child2->getFrameRateForLayerTree());

}



} // namespace

} // namespace android