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

1 files changed, 6 insertions, 0 deletions

diff --git a/libs/gui/LayerState.cpp b/libs/gui/LayerState.cpp
index 39b4d4bbb6..5547efc3ad 100644
--- a/libs/gui/LayerState.cpp
+++ b/libs/gui/LayerState.cpp
@@ -86,6 +86,7 @@ status_t layer_state_t::write(Parcel& output) const
     memcpy(output.writeInplace(16 * sizeof(float)),
            colorTransform.asArray(), 16 * sizeof(float));
     output.writeFloat(cornerRadius);
+    output.writeUint32(backgroundBlurRadius);
     output.writeStrongBinder(cachedBuffer.token.promote());
     output.writeUint64(cachedBuffer.id);
     output.writeParcelable(metadata);
@@ -173,6 +174,7 @@ status_t layer_state_t::read(const Parcel& input)
 
     colorTransform = mat4(static_cast<const float*>(input.readInplace(16 * sizeof(float))));
     cornerRadius = input.readFloat();
+    backgroundBlurRadius = input.readUint32();
     cachedBuffer.token = input.readStrongBinder();
     cachedBuffer.id = input.readUint64();
     input.readParcelable(&metadata);
@@ -307,6 +309,10 @@ void layer_state_t::merge(const layer_state_t& other) {
         what |= eCornerRadiusChanged;
         cornerRadius = other.cornerRadius;
     }
+    if (other.what & eBackgroundBlurRadiusChanged) {
+        what |= eBackgroundBlurRadiusChanged;
+        backgroundBlurRadius = other.backgroundBlurRadius;
+    }
     if (other.what & eDeferTransaction_legacy) {
         what |= eDeferTransaction_legacy;
         barrierHandle_legacy = other.barrierHandle_legacy;