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Commit 7eebe694 authored by Lloyd Pique's avatar Lloyd Pique
Browse files

SF: Allow display layer clip bounds to be overriden 

Add a new virtual call to get the display bounds (in layer space) when
used as the root clip rectangle for all layers, so that it can be
customized where needed.

The base functionality is not changed -- the display viewport is still
used as the clip rectangle.

Test: Builds
Bug: 154780821
Change-Id: I5a8c564cacd87e37d11128ab4742d9f2ee897bf2
parent 1983b724

services/surfaceflinger/SurfaceFlinger.cpp

+5 −1
Original line number Diff line number Diff line
@@ -2364,6 +2364,10 @@ void SurfaceFlinger::postComposition() 
    }

}



FloatRect SurfaceFlinger::getLayerClipBoundsForDisplay(const DisplayDevice& displayDevice) const {

    return displayDevice.getViewport().toFloatRect();

}



void SurfaceFlinger::computeLayerBounds() {

    for (const auto& pair : mDisplays) {

        const auto& displayDevice = pair.second;
@@ -2374,7 +2378,7 @@ void SurfaceFlinger::computeLayerBounds() { 
                continue;

            }



            layer->computeBounds(displayDevice->getViewport().toFloatRect(), ui::Transform(),

            layer->computeBounds(getLayerClipBoundsForDisplay(*displayDevice), ui::Transform(),

                                 0.f /* shadowRadius */);

        }

    }

services/surfaceflinger/SurfaceFlinger.h

+7 −0
Original line number Diff line number Diff line
@@ -644,6 +644,13 @@ protected: 
            REQUIRES(mStateLock);

    virtual void commitTransactionLocked();



    // Used internally by computeLayerBounds() to gets the clip rectangle to use for the

    // root layers on a particular display in layer-coordinate space. The

    // layers (and effectively their children) will be clipped against this

    // rectangle. The base behavior is to clip to the visible region of the

    // display.

    virtual FloatRect getLayerClipBoundsForDisplay(const DisplayDevice&) const;



private:

    /* ------------------------------------------------------------------------

     * Layer management