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diff --git a/libhwcomposer/hwc_fbupdate.h b/libhwcomposer/hwc_fbupdate.h
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+++ b/libhwcomposer/hwc_fbupdate.h
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+/*
+ * Copyright (C) 2010 The Android Open Source Project
+ * Copyright (C) 2012, The Linux Foundation. All rights reserved.
+ *
+ * Not a Contribution, Apache license notifications and license are
+ * retained for attribution purposes only.
+ *
+ * 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 HWC_FBUPDATE_H
+#define HWC_FBUPDATE_H
+#include "hwc_utils.h"
+#include "overlay.h"
+
+#define LIKELY( exp )       (__builtin_expect( (exp) != 0, true  ))
+#define UNLIKELY( exp )     (__builtin_expect( (exp) != 0, false ))
+
+namespace qhwc {
+namespace ovutils = overlay::utils;
+
+//Framebuffer update
+class FBUpdate {
+    public:
+        // Sets up members and prepares overlay if conditions are met
+        static bool prepare(hwc_context_t *ctx, hwc_layer_1_t *fblayer, int dpy);
+        // Draws layer if this feature is on
+        static bool draw(hwc_context_t *ctx, hwc_layer_1_t *fblayer, int dpy);
+        //Reset values
+        static void reset();
+    private:
+        //Configures overlay
+        static bool configure(hwc_context_t *ctx, hwc_layer_1_t *fblayer,
+            int dpy);
+        //Flags if this feature is on.
+        static bool sModeOn[HWC_NUM_DISPLAY_TYPES];
+        static ovutils::eDest sDest[HWC_NUM_DISPLAY_TYPES];
+};
+
+}; //namespace qhwc
+
+#endif //HWC_FBUPDATE_H