diff --git a/include/surfaceflinger/Surface.h b/include/surfaceflinger/Surface.h
new file mode 100644
index 0000000..9808832
--- /dev/null
+++ b/include/surfaceflinger/Surface.h
@@ -0,0 +1,254 @@
+/*
+ * 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_SF_SURFACE_H
+#define ANDROID_SF_SURFACE_H
+
+#include <stdint.h>
+#include <sys/types.h>
+
+#include <utils/RefBase.h>
+#include <utils/threads.h>
+
+#include <ui/PixelFormat.h>
+#include <ui/Region.h>
+#include <ui/egl/android_natives.h>
+
+#include <surfaceflinger/ISurface.h>
+#include <surfaceflinger/ISurfaceFlingerClient.h>
+
+namespace android {
+
+// ---------------------------------------------------------------------------
+
+class GraphicBufferMapper;
+class IOMX;
+class Rect;
+class Surface;
+class SurfaceComposerClient;
+class SharedClient;
+class SharedBufferClient;
+
+// ---------------------------------------------------------------------------
+
+class SurfaceControl : public RefBase
+{
+public:
+    static bool isValid(const sp<SurfaceControl>& surface) {
+        return (surface != 0) && surface->isValid();
+    }
+    bool isValid() {
+        return mToken>=0 && mClient!=0;
+    }
+    static bool isSameSurface(
+            const sp<SurfaceControl>& lhs, const sp<SurfaceControl>& rhs);
+        
+    SurfaceID   ID() const      { return mToken; }
+    uint32_t    getFlags() const { return mFlags; }
+    uint32_t    getIdentity() const { return mIdentity; }
+
+    // release surface data from java
+    void        clear();
+    
+    status_t    setLayer(int32_t layer);
+    status_t    setPosition(int32_t x, int32_t y);
+    status_t    setSize(uint32_t w, uint32_t h);
+    status_t    hide();
+    status_t    show(int32_t layer = -1);
+    status_t    freeze();
+    status_t    unfreeze();
+    status_t    setFlags(uint32_t flags, uint32_t mask);
+    status_t    setTransparentRegionHint(const Region& transparent);
+    status_t    setAlpha(float alpha=1.0f);
+    status_t    setMatrix(float dsdx, float dtdx, float dsdy, float dtdy);
+    status_t    setFreezeTint(uint32_t tint);
+
+    static status_t writeSurfaceToParcel(
+            const sp<SurfaceControl>& control, Parcel* parcel);
+
+    sp<Surface> getSurface() const;
+
+private:
+    // can't be copied
+    SurfaceControl& operator = (SurfaceControl& rhs);
+    SurfaceControl(const SurfaceControl& rhs);
+
+    
+    friend class SurfaceComposerClient;
+
+    // camera and camcorder need access to the ISurface binder interface for preview
+    friend class Camera;
+    friend class MediaRecorder;
+    // mediaplayer needs access to ISurface for display
+    friend class MediaPlayer;
+    // for testing
+    friend class Test;
+    const sp<ISurface>& getISurface() const { return mSurface; }
+    
+
+    friend class Surface;
+
+    SurfaceControl(
+            const sp<SurfaceComposerClient>& client,
+            const sp<ISurface>& surface,
+            const ISurfaceFlingerClient::surface_data_t& data,
+            uint32_t w, uint32_t h, PixelFormat format, uint32_t flags);
+
+    ~SurfaceControl();
+
+    status_t validate() const;
+    void destroy();
+    
+    sp<SurfaceComposerClient>   mClient;
+    sp<ISurface>                mSurface;
+    SurfaceID                   mToken;
+    uint32_t                    mIdentity;
+    uint32_t                    mWidth;
+    uint32_t                    mHeight;
+    PixelFormat                 mFormat;
+    uint32_t                    mFlags;
+    mutable Mutex               mLock;
+    
+    mutable sp<Surface>         mSurfaceData;
+};
+    
+// ---------------------------------------------------------------------------
+
+class Surface 
+    : public EGLNativeBase<android_native_window_t, Surface, RefBase>
+{
+public:
+    struct SurfaceInfo {
+        uint32_t    w;
+        uint32_t    h;
+        uint32_t    s;
+        uint32_t    usage;
+        PixelFormat format;
+        void*       bits;
+        uint32_t    reserved[2];
+    };
+
+    Surface(const Parcel& data);
+
+    static bool isValid(const sp<Surface>& surface) {
+        return (surface != 0) && surface->isValid();
+    }
+
+    static bool isSameSurface(
+            const sp<Surface>& lhs, const sp<Surface>& rhs);
+
+    bool        isValid();
+    SurfaceID   ID() const          { return mToken; }
+    uint32_t    getFlags() const    { return mFlags; }
+    uint32_t    getIdentity() const { return mIdentity; }
+
+    // the lock/unlock APIs must be used from the same thread
+    status_t    lock(SurfaceInfo* info, bool blocking = true);
+    status_t    lock(SurfaceInfo* info, Region* dirty, bool blocking = true);
+    status_t    unlockAndPost();
+
+    // setSwapRectangle() is intended to be used by GL ES clients
+    void        setSwapRectangle(const Rect& r);
+
+private:
+    // can't be copied
+    Surface& operator = (Surface& rhs);
+    Surface(const Surface& rhs);
+
+    Surface(const sp<SurfaceControl>& control);
+    void init();
+     ~Surface();
+  
+    friend class SurfaceComposerClient;
+    friend class SurfaceControl;
+
+    
+    // camera and camcorder need access to the ISurface binder interface for preview
+    friend class Camera;
+    friend class MediaRecorder;
+    // mediaplayer needs access to ISurface for display
+    friend class MediaPlayer;
+    friend class IOMX;
+    // this is just to be able to write some unit tests
+    friend class Test;
+
+    sp<SurfaceComposerClient> getClient() const;
+    sp<ISurface> getISurface() const;
+
+    status_t getBufferLocked(int index, int usage);
+   
+           status_t validate() const;
+
+    inline const GraphicBufferMapper& getBufferMapper() const { return mBufferMapper; }
+    inline GraphicBufferMapper& getBufferMapper() { return mBufferMapper; }
+    
+    static int setSwapInterval(android_native_window_t* window, int interval);
+    static int dequeueBuffer(android_native_window_t* window, android_native_buffer_t** buffer);
+    static int lockBuffer(android_native_window_t* window, android_native_buffer_t* buffer);
+    static int queueBuffer(android_native_window_t* window, android_native_buffer_t* buffer);
+    static int query(android_native_window_t* window, int what, int* value);
+    static int perform(android_native_window_t* window, int operation, ...);
+
+    int dequeueBuffer(android_native_buffer_t** buffer);
+    int lockBuffer(android_native_buffer_t* buffer);
+    int queueBuffer(android_native_buffer_t* buffer);
+    int query(int what, int* value);
+    int perform(int operation, va_list args);
+
+    status_t dequeueBuffer(sp<GraphicBuffer>* buffer);
+
+    
+    void setUsage(uint32_t reqUsage);
+    uint32_t getUsage() const;
+    
+    // constants
+    sp<SurfaceComposerClient>   mClient;
+    sp<ISurface>                mSurface;
+    SurfaceID                   mToken;
+    uint32_t                    mIdentity;
+    PixelFormat                 mFormat;
+    uint32_t                    mFlags;
+    GraphicBufferMapper&        mBufferMapper;
+    SharedBufferClient*         mSharedBufferClient;
+
+    // protected by mSurfaceLock
+    Rect                        mSwapRectangle;
+    uint32_t                    mUsage;
+    
+    // protected by mSurfaceLock. These are also used from lock/unlock
+    // but in that case, they must be called form the same thread.
+    sp<GraphicBuffer>           mBuffers[2];
+    mutable Region              mDirtyRegion;
+
+    // must be used from the lock/unlock thread
+    sp<GraphicBuffer>           mLockedBuffer;
+    sp<GraphicBuffer>           mPostedBuffer;
+    mutable Region              mOldDirtyRegion;
+    bool                        mNeedFullUpdate;
+
+    // query() must be called from dequeueBuffer() thread
+    uint32_t                    mWidth;
+    uint32_t                    mHeight;
+
+    // Inherently thread-safe
+    mutable Mutex               mSurfaceLock;
+    mutable Mutex               mApiLock;
+};
+
+}; // namespace android
+
+#endif // ANDROID_SF_SURFACE_H
+