diff --git a/libs/ui/LayerState.cpp b/libs/ui/LayerState.cpp
new file mode 100644
index 0000000..0b6374b
--- /dev/null
+++ b/libs/ui/LayerState.cpp
@@ -0,0 +1,53 @@
+/*
+ * Copyright (C) 2008 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <utils/Errors.h>
+#include <utils/Parcel.h>
+#include <private/ui/LayerState.h>
+
+namespace android {
+
+status_t layer_state_t::write(Parcel& output) const
+{
+    size_t size = sizeof(layer_state_t);
+
+    //output.writeStrongBinder(surface->asBinder());
+    //size -= sizeof(surface);
+
+    transparentRegion.write(output);
+    size -= sizeof(transparentRegion);
+    
+    output.write(this, size);
+    
+    return NO_ERROR;
+}
+
+status_t layer_state_t::read(const Parcel& input)
+{
+    size_t size = sizeof(layer_state_t);
+
+    //surface = interface_cast<ISurface>(input.readStrongBinder());
+    //size -= sizeof(surface);
+
+    transparentRegion.read(input);
+    size -= sizeof(transparentRegion);
+
+    input.read(this, size);
+    
+    return NO_ERROR;
+}
+
+}; // namespace android