Add support for background blurs
Bug: 141640413
Fixes: 146384234
Test: adb shell setprop debug.sf.disableBlurs 1
Test: adb shell setprop debug.sf.gaussianBlur 0
Test: adb shell setprop ro.surface_flinger.supports_background_blur 1
Test: ./SurfaceFlinger_test --gtest_filter=Layer*Tests/Layer*Test.SetBackgroundBlur*
Test: ./librenderengine_test --gtest_filter=*BlurBackground*"
Test: atest SurfaceFlinger_test:SurfaceInterceptorTest#InterceptBackgroundBlurRadiusUpdateWorks
Change-Id: I5194c910fe7062f33e70943867012539e6c6626a
diff --git a/services/surfaceflinger/CompositionEngine/include/compositionengine/LayerFECompositionState.h b/services/surfaceflinger/CompositionEngine/include/compositionengine/LayerFECompositionState.h
index a64fdbf..3dbd25e 100644
--- a/services/surfaceflinger/CompositionEngine/include/compositionengine/LayerFECompositionState.h
+++ b/services/surfaceflinger/CompositionEngine/include/compositionengine/LayerFECompositionState.h
@@ -63,6 +63,9 @@
// The alpha value for this layer
float alpha{1.f};
+ // Background blur in pixels
+ int backgroundBlurRadius{0};
+
// The transform from layer local coordinates to composition coordinates
ui::Transform geomLayerTransform;
diff --git a/services/surfaceflinger/CompositionEngine/include/compositionengine/impl/Output.h b/services/surfaceflinger/CompositionEngine/include/compositionengine/impl/Output.h
index 159e928..3a9776d 100644
--- a/services/surfaceflinger/CompositionEngine/include/compositionengine/impl/Output.h
+++ b/services/surfaceflinger/CompositionEngine/include/compositionengine/impl/Output.h
@@ -116,6 +116,7 @@
private:
void dirtyEntireOutput();
+ compositionengine::OutputLayer* findLayerRequestingBackgroundComposition() const;
ui::Dataspace getBestDataspace(ui::Dataspace*, bool*) const;
compositionengine::Output::ColorProfile pickColorProfile(
const compositionengine::CompositionRefreshArgs&) const;
@@ -126,6 +127,7 @@
std::unique_ptr<compositionengine::RenderSurface> mRenderSurface;
ReleasedLayers mReleasedLayers;
+ OutputLayer* mLayerRequestingBackgroundBlur = nullptr;
};
// This template factory function standardizes the implementation details of the
diff --git a/services/surfaceflinger/CompositionEngine/src/LayerFECompositionState.cpp b/services/surfaceflinger/CompositionEngine/src/LayerFECompositionState.cpp
index 085e838..8065e65 100644
--- a/services/surfaceflinger/CompositionEngine/src/LayerFECompositionState.cpp
+++ b/services/surfaceflinger/CompositionEngine/src/LayerFECompositionState.cpp
@@ -61,6 +61,7 @@
out.append("\n ");
dumpVal(out, "blend", toString(blendMode), blendMode);
dumpVal(out, "alpha", alpha);
+ dumpVal(out, "backgroundBlurRadius", backgroundBlurRadius);
out.append("\n ");
dumpVal(out, "type", type);
diff --git a/services/surfaceflinger/CompositionEngine/src/Output.cpp b/services/surfaceflinger/CompositionEngine/src/Output.cpp
index 01413b9..650b5c1 100644
--- a/services/surfaceflinger/CompositionEngine/src/Output.cpp
+++ b/services/surfaceflinger/CompositionEngine/src/Output.cpp
@@ -578,15 +578,33 @@
return;
}
+ mLayerRequestingBackgroundBlur = findLayerRequestingBackgroundComposition();
+ bool forceClientComposition = mLayerRequestingBackgroundBlur != nullptr;
+
for (auto* layer : getOutputLayersOrderedByZ()) {
layer->updateCompositionState(refreshArgs.updatingGeometryThisFrame,
- refreshArgs.devOptForceClientComposition);
+ refreshArgs.devOptForceClientComposition ||
+ forceClientComposition);
+
+ if (mLayerRequestingBackgroundBlur == layer) {
+ forceClientComposition = false;
+ }
// Send the updated state to the HWC, if appropriate.
layer->writeStateToHWC(refreshArgs.updatingGeometryThisFrame);
}
}
+compositionengine::OutputLayer* Output::findLayerRequestingBackgroundComposition() const {
+ compositionengine::OutputLayer* layerRequestingBgComposition = nullptr;
+ for (auto* layer : getOutputLayersOrderedByZ()) {
+ if (layer->getLayer().getFEState().backgroundBlurRadius > 0) {
+ layerRequestingBgComposition = layer;
+ }
+ }
+ return layerRequestingBgComposition;
+}
+
void Output::updateColorProfile(const compositionengine::CompositionRefreshArgs& refreshArgs) {
setColorProfile(pickColorProfile(refreshArgs));
}
@@ -854,11 +872,12 @@
}
// We boost GPU frequency here because there will be color spaces conversion
- // and it's expensive. We boost the GPU frequency so that GPU composition can
- // finish in time. We must reset GPU frequency afterwards, because high frequency
- // consumes extra battery.
+ // or complex GPU shaders and it's expensive. We boost the GPU frequency so that
+ // GPU composition can finish in time. We must reset GPU frequency afterwards,
+ // because high frequency consumes extra battery.
const bool expensiveRenderingExpected =
- clientCompositionDisplay.outputDataspace == ui::Dataspace::DISPLAY_P3;
+ clientCompositionDisplay.outputDataspace == ui::Dataspace::DISPLAY_P3 ||
+ mLayerRequestingBackgroundBlur != nullptr;
if (expensiveRenderingExpected) {
setExpensiveRenderingExpected(true);
}
diff --git a/services/surfaceflinger/CompositionEngine/tests/OutputTest.cpp b/services/surfaceflinger/CompositionEngine/tests/OutputTest.cpp
index 24311c7..6761b86 100644
--- a/services/surfaceflinger/CompositionEngine/tests/OutputTest.cpp
+++ b/services/surfaceflinger/CompositionEngine/tests/OutputTest.cpp
@@ -138,6 +138,10 @@
EXPECT_CALL(mLayer1, editFEState()).WillRepeatedly(ReturnRef(mLayer1FEState));
EXPECT_CALL(mLayer2, editFEState()).WillRepeatedly(ReturnRef(mLayer2FEState));
EXPECT_CALL(mLayer3, editFEState()).WillRepeatedly(ReturnRef(mLayer3FEState));
+
+ EXPECT_CALL(mLayer1, getFEState()).WillRepeatedly(ReturnRef(mLayer1FEState));
+ EXPECT_CALL(mLayer2, getFEState()).WillRepeatedly(ReturnRef(mLayer2FEState));
+ EXPECT_CALL(mLayer3, getFEState()).WillRepeatedly(ReturnRef(mLayer3FEState));
}
void injectLayer(std::unique_ptr<mock::OutputLayer> layer) {
@@ -3637,6 +3641,29 @@
kDisplayDataspace));
}
+TEST_F(OutputUpdateAndWriteCompositionStateTest, handlesBackgroundBlurRequests) {
+ // Layer requesting blur, or below, should request client composition.
+ EXPECT_CALL(*mOutputLayer1, updateCompositionState(false, true));
+ EXPECT_CALL(*mOutputLayer1, writeStateToHWC(false));
+ EXPECT_CALL(*mOutputLayer2, updateCompositionState(false, true));
+ EXPECT_CALL(*mOutputLayer2, writeStateToHWC(false));
+ EXPECT_CALL(*mOutputLayer3, updateCompositionState(false, false));
+ EXPECT_CALL(*mOutputLayer3, writeStateToHWC(false));
+
+ mLayer2FEState.backgroundBlurRadius = 10;
+
+ injectLayer(std::move(mOutputLayer1));
+ injectLayer(std::move(mOutputLayer2));
+ injectLayer(std::move(mOutputLayer3));
+
+ mOutput->editState().isEnabled = true;
+
+ CompositionRefreshArgs args;
+ args.updatingGeometryThisFrame = false;
+ args.devOptForceClientComposition = false;
+ mOutput->updateAndWriteCompositionState(args);
+}
+
TEST_F(GenerateClientCompositionRequestsTest, handlesLandscapeModeSplitScreenRequests) {
// In split-screen landscape mode, the screen is rotated 90 degrees, with
// one layer on the left covering the left side of the output, and one layer