Add captureLayers function to capture a layer and its children.
The captureLayers function gets a root layer as its argument.
It will capture the content for that layer and its descendants. The
capture will set the root layer's transform back to (0, 0).
Test: Transaction_test ScreenCaptureTest
Change-Id: I84fb66a65cd91434cddc99506b1924cf9f950935
diff --git a/libs/gui/ISurfaceComposer.cpp b/libs/gui/ISurfaceComposer.cpp
index 9677125..973302c 100644
--- a/libs/gui/ISurfaceComposer.cpp
+++ b/libs/gui/ISurfaceComposer.cpp
@@ -122,6 +122,18 @@
return reply.readInt32();
}
+ virtual status_t captureLayers(const sp<IBinder>& layerHandleBinder,
+ const sp<IGraphicBufferProducer>& producer,
+ ISurfaceComposer::Rotation rotation) {
+ Parcel data, reply;
+ data.writeInterfaceToken(ISurfaceComposer::getInterfaceDescriptor());
+ data.writeStrongBinder(layerHandleBinder);
+ data.writeStrongBinder(IInterface::asBinder(producer));
+ data.writeInt32(static_cast<int32_t>(rotation));
+ remote()->transact(BnSurfaceComposer::CAPTURE_LAYERS, data, &reply);
+ return reply.readInt32();
+ }
+
virtual bool authenticateSurfaceTexture(
const sp<IGraphicBufferProducer>& bufferProducer) const
{
@@ -588,6 +600,18 @@
reply->writeInt32(res);
return NO_ERROR;
}
+ case CAPTURE_LAYERS: {
+ CHECK_INTERFACE(ISurfaceComposer, data, reply);
+ sp<IBinder> layerHandleBinder = data.readStrongBinder();
+ sp<IGraphicBufferProducer> producer =
+ interface_cast<IGraphicBufferProducer>(data.readStrongBinder());
+ int32_t rotation = data.readInt32();
+
+ status_t res = captureLayers(layerHandleBinder, producer,
+ static_cast<ISurfaceComposer::Rotation>(rotation));
+ reply->writeInt32(res);
+ return NO_ERROR;
+ }
case AUTHENTICATE_SURFACE: {
CHECK_INTERFACE(ISurfaceComposer, data, reply);
sp<IGraphicBufferProducer> bufferProducer =