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diff --git a/services/surfaceflinger/DisplayHardware/DisplayHardware.h b/services/surfaceflinger/DisplayHardware/DisplayHardware.h
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+++ b/services/surfaceflinger/DisplayHardware/DisplayHardware.h
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+/*
+ * 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_DISPLAY_HARDWARE_H
+#define ANDROID_DISPLAY_HARDWARE_H
+
+#include <stdlib.h>
+
+#include <ui/PixelFormat.h>
+#include <ui/Region.h>
+
+#include <GLES/gl.h>
+#include <GLES/glext.h>
+#include <EGL/egl.h>
+#include <EGL/eglext.h>
+
+#include <pixelflinger/pixelflinger.h>
+
+#include "GLExtensions.h"
+
+#include "DisplayHardware/DisplayHardwareBase.h"
+
+struct overlay_control_device_t;
+struct framebuffer_device_t;
+struct copybit_image_t;
+
+namespace android {
+
+class FramebufferNativeWindow;
+
+class DisplayHardware : public DisplayHardwareBase
+{
+public:
+    enum {
+        COPY_BITS_EXTENSION         = 0x00000008,
+        BUFFER_PRESERVED            = 0x00010000,
+        PARTIAL_UPDATES             = 0x00020000,   // video driver feature
+        SLOW_CONFIG                 = 0x00040000,   // software
+        SWAP_RECTANGLE              = 0x00080000,
+    };
+
+    DisplayHardware(
+            const sp<SurfaceFlinger>& flinger,
+            uint32_t displayIndex);
+
+    ~DisplayHardware();
+
+    void releaseScreen() const;
+    void acquireScreen() const;
+
+    // Flip the front and back buffers if the back buffer is "dirty".  Might
+    // be instantaneous, might involve copying the frame buffer around.
+    void flip(const Region& dirty) const;
+
+    float       getDpiX() const;
+    float       getDpiY() const;
+    float       getRefreshRate() const;
+    float       getDensity() const;
+    int         getWidth() const;
+    int         getHeight() const;
+    PixelFormat getFormat() const;
+    uint32_t    getFlags() const;
+    void        makeCurrent() const;
+    uint32_t    getMaxTextureSize() const;
+    uint32_t    getMaxViewportDims() const;
+
+    uint32_t getPageFlipCount() const;
+    EGLDisplay getEGLDisplay() const { return mDisplay; }
+    overlay_control_device_t* getOverlayEngine() const { return mOverlayEngine; }
+    
+    status_t compositionComplete() const;
+    
+    Rect bounds() const {
+        return Rect(mWidth, mHeight);
+    }
+
+private:
+    void init(uint32_t displayIndex) __attribute__((noinline));
+    void fini() __attribute__((noinline));
+
+    EGLDisplay      mDisplay;
+    EGLSurface      mSurface;
+    EGLContext      mContext;
+    EGLConfig       mConfig;
+    float           mDpiX;
+    float           mDpiY;
+    float           mRefreshRate;
+    float           mDensity;
+    int             mWidth;
+    int             mHeight;
+    PixelFormat     mFormat;
+    uint32_t        mFlags;
+    mutable uint32_t mPageFlipCount;
+    GLint           mMaxViewportDims;
+    GLint           mMaxTextureSize;
+    
+    sp<FramebufferNativeWindow> mNativeWindow;
+    overlay_control_device_t* mOverlayEngine;
+};
+
+}; // namespace android
+
+#endif // ANDROID_DISPLAY_HARDWARE_H