auto import from //depot/cupcake/@135843
diff --git a/include/ui/Overlay.h b/include/ui/Overlay.h
new file mode 100644
index 0000000..66514b4
--- /dev/null
+++ b/include/ui/Overlay.h
@@ -0,0 +1,109 @@
+/*
+ * Copyright (C) 2007 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.
+ */
+
+#ifndef ANDROID_OVERLAY_H
+#define ANDROID_OVERLAY_H
+
+#include <stdint.h>
+#include <sys/types.h>
+
+#include <utils/Errors.h>
+#include <utils/IInterface.h>
+#include <utils/RefBase.h>
+#include <utils/threads.h>
+
+#include <ui/PixelFormat.h>
+#include <ui/IOverlay.h>
+
+#include <hardware/overlay.h>
+
+namespace android {
+
+class IMemory;
+class IMemoryHeap;
+
+// ----------------------------------------------------------------------------
+
+class OverlayRef : public LightRefBase<OverlayRef>
+{
+public:
+ OverlayRef(overlay_handle_t, const sp<IOverlay>&,
+ uint32_t w, uint32_t h, int32_t f, uint32_t ws, uint32_t hs);
+
+ static sp<OverlayRef> readFromParcel(const Parcel& data);
+ static status_t writeToParcel(Parcel* reply, const sp<OverlayRef>& o);
+
+private:
+ friend class LightRefBase<OverlayRef>;
+ friend class Overlay;
+
+ OverlayRef();
+ virtual ~OverlayRef();
+
+ overlay_handle_t mOverlayHandle;
+ sp<IOverlay> mOverlayChannel;
+ uint32_t mWidth;
+ uint32_t mHeight;
+ int32_t mFormat;
+ int32_t mWidthStride;
+ int32_t mHeightStride;
+ bool mOwnHandle;
+};
+
+// ----------------------------------------------------------------------------
+
+class Overlay : public virtual RefBase
+{
+public:
+ Overlay(const sp<OverlayRef>& overlayRef);
+
+ /* destroys this overlay */
+ void destroy();
+
+ /* get the HAL handle for this overlay */
+ overlay_handle_t getHandleRef() const;
+
+ /* blocks until an overlay buffer is available and return that buffer. */
+ status_t dequeueBuffer(overlay_buffer_t* buffer);
+
+ /* release the overlay buffer and post it */
+ status_t queueBuffer(overlay_buffer_t buffer);
+
+ /* returns the address of a given buffer if supported, NULL otherwise. */
+ void* getBufferAddress(overlay_buffer_t buffer);
+
+ /* get physical informations about the overlay */
+ uint32_t getWidth() const;
+ uint32_t getHeight() const;
+ int32_t getFormat() const;
+ int32_t getWidthStride() const;
+ int32_t getHeightStride() const;
+ int32_t getBufferCount() const;
+ status_t getStatus() const;
+
+private:
+ virtual ~Overlay();
+
+ sp<OverlayRef> mOverlayRef;
+ overlay_data_device_t *mOverlayData;
+ status_t mStatus;
+};
+
+// ----------------------------------------------------------------------------
+
+}; // namespace android
+
+#endif // ANDROID_OVERLAY_H