diff --git a/libs/surfaceflinger/SurfaceFlinger.h b/libs/surfaceflinger/SurfaceFlinger.h
new file mode 100644
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+++ b/libs/surfaceflinger/SurfaceFlinger.h
@@ -0,0 +1,435 @@
+/*
+ * 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_SURFACE_FLINGER_H
+#define ANDROID_SURFACE_FLINGER_H
+
+#include <stdint.h>
+#include <sys/types.h>
+
+#include <utils/SortedVector.h>
+#include <utils/KeyedVector.h>
+#include <utils/threads.h>
+#include <utils/Atomic.h>
+#include <utils/Errors.h>
+#include <utils/MemoryDealer.h>
+
+#include <ui/PixelFormat.h>
+#include <ui/ISurfaceComposer.h>
+#include <ui/ISurfaceFlingerClient.h>
+
+#include <private/ui/SharedState.h>
+#include <private/ui/LayerState.h>
+#include <private/ui/SurfaceFlingerSynchro.h>
+
+#include "Barrier.h"
+#include "BootAnimation.h"
+#include "CPUGauge.h"
+#include "Layer.h"
+#include "Tokenizer.h"
+
+struct copybit_device_t;
+struct overlay_device_t;
+
+namespace android {
+
+// ---------------------------------------------------------------------------
+
+class Client;
+class BClient;
+class DisplayHardware;
+class FreezeLock;
+class GPUHardwareInterface;
+class IGPUCallback;
+class Layer;
+class LayerBuffer;
+class LayerOrientationAnim;
+class OrientationAnimation;
+class SurfaceHeapManager;
+
+typedef int32_t ClientID;
+
+#define LIKELY( exp )       (__builtin_expect( (exp) != 0, true  ))
+#define UNLIKELY( exp )     (__builtin_expect( (exp) != 0, false ))
+
+// ---------------------------------------------------------------------------
+
+class Client
+{
+public:
+            Client(ClientID cid, const sp<SurfaceFlinger>& flinger);
+            ~Client();
+
+            int32_t                 generateId(int pid);
+            void                    free(int32_t id);
+            status_t                bindLayer(LayerBaseClient* layer, int32_t id);
+            sp<MemoryDealer>        createAllocator(uint32_t memory_type);
+
+    inline  bool                    isValid(int32_t i) const;
+    inline  const uint8_t*          inUseArray() const;
+    inline  size_t                  numActiveLayers() const;
+    LayerBaseClient*                getLayerUser(int32_t i) const;
+    const Vector<LayerBaseClient*>& getLayers() const { return mLayers; }
+    const sp<IMemory>&              controlBlockMemory() const { return mCblkMemory; }
+    void                            dump(const char* what);
+    const sp<SurfaceHeapManager>&   getSurfaceHeapManager() const;
+    
+    // pointer to this client's control block
+    per_client_cblk_t*      ctrlblk;
+    ClientID                cid;
+
+    
+private:
+    int                     getClientPid() const { return mPid; }
+        
+    int                         mPid;
+    uint32_t                    mBitmap;
+    SortedVector<uint8_t>       mInUse;
+    Vector<LayerBaseClient*>    mLayers;
+    sp<MemoryDealer>            mCblkHeap;
+    sp<SurfaceFlinger>          mFlinger;
+    sp<MemoryDealer>            mSharedHeapAllocator;
+    sp<MemoryDealer>            mPMemAllocator;
+    sp<IMemory>                 mCblkMemory;
+};
+
+// ---------------------------------------------------------------------------
+
+class GraphicPlane
+{
+public:
+    static status_t orientationToTransfrom(int orientation, int w, int h,
+            Transform* tr);
+
+                                GraphicPlane();
+                                ~GraphicPlane();
+
+        bool                    initialized() const;
+
+        void                    setDisplayHardware(DisplayHardware *);
+        void                    setTransform(const Transform& tr);
+        status_t                setOrientation(int orientation);
+
+        const DisplayHardware&  displayHardware() const;
+        const Transform&        transform() const;
+private:
+                                GraphicPlane(const GraphicPlane&);
+        GraphicPlane            operator = (const GraphicPlane&);
+
+        DisplayHardware*        mHw;
+        Transform               mTransform;
+        Transform               mOrientationTransform;
+        Transform               mGlobalTransform;
+};
+
+// ---------------------------------------------------------------------------
+
+enum {
+    eTransactionNeeded      = 0x01,
+    eTraversalNeeded        = 0x02
+};
+
+class SurfaceFlinger : public BnSurfaceComposer, protected Thread
+{
+public:
+    static void instantiate();
+    static void shutdown();
+
+                    SurfaceFlinger();
+    virtual         ~SurfaceFlinger();
+            void    init();
+
+    virtual status_t onTransact(
+        uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags);
+
+    virtual status_t dump(int fd, const Vector<String16>& args);
+
+    // ISurfaceComposer interface
+    virtual sp<ISurfaceFlingerClient>   createConnection();
+    virtual sp<IMemory>                 getCblk() const;
+    virtual void                        bootFinished();
+    virtual void                        openGlobalTransaction();
+    virtual void                        closeGlobalTransaction();
+    virtual status_t                    freezeDisplay(DisplayID dpy, uint32_t flags);
+    virtual status_t                    unfreezeDisplay(DisplayID dpy, uint32_t flags);
+    virtual int                         setOrientation(DisplayID dpy, int orientation);
+    virtual void                        signal() const;
+    virtual status_t requestGPU(const sp<IGPUCallback>& callback, 
+            gpu_info_t* gpu);
+    virtual status_t revokeGPU();
+
+            void                        screenReleased(DisplayID dpy);
+            void                        screenAcquired(DisplayID dpy);
+
+            const sp<SurfaceHeapManager>& getSurfaceHeapManager() const { 
+                return mSurfaceHeapManager; 
+            }
+
+            const sp<GPUHardwareInterface>& getGPU() const {
+                return mGPU; 
+            }
+
+            copybit_device_t* getBlitEngine() const;
+            overlay_control_device_t* getOverlayEngine() const;
+
+            
+    status_t removeLayer(LayerBase* layer);
+    status_t addLayer(LayerBase* layer);
+    status_t invalidateLayerVisibility(LayerBase* layer);
+    
+private:
+    friend class BClient;
+    friend class LayerBase;
+    friend class LayerBuffer;
+    friend class LayerBaseClient;
+    friend class Layer;
+    friend class LayerBlur;
+
+    sp<ISurface> createSurface(ClientID client, int pid, 
+            ISurfaceFlingerClient::surface_data_t* params,
+            DisplayID display, uint32_t w, uint32_t h, PixelFormat format,
+            uint32_t flags);
+
+    LayerBaseClient* createNormalSurfaceLocked(Client* client, DisplayID display,
+            int32_t id, uint32_t w, uint32_t h, PixelFormat format, uint32_t flags);
+
+    LayerBaseClient* createBlurSurfaceLocked(Client* client, DisplayID display,
+            int32_t id, uint32_t w, uint32_t h, uint32_t flags);
+
+    LayerBaseClient* createDimSurfaceLocked(Client* client, DisplayID display,
+            int32_t id, uint32_t w, uint32_t h, uint32_t flags);
+
+    LayerBaseClient* createPushBuffersSurfaceLocked(Client* client, DisplayID display,
+            int32_t id, uint32_t w, uint32_t h, uint32_t flags);
+
+    status_t    destroySurface(SurfaceID surface_id);
+    status_t    setClientState(ClientID cid, int32_t count, const layer_state_t* states);
+
+
+    class LayerVector {
+    public:
+        inline              LayerVector() { }
+                            LayerVector(const LayerVector&);
+        inline size_t       size() const { return layers.size(); }
+        inline LayerBase*const* array() const { return layers.array(); }
+        ssize_t             add(LayerBase*, Vector<LayerBase*>::compar_t);
+        ssize_t             remove(LayerBase*);
+        ssize_t             reorder(LayerBase*, Vector<LayerBase*>::compar_t);
+        ssize_t             indexOf(LayerBase* key, size_t guess=0) const;
+        inline LayerBase*   operator [] (size_t i) const { return layers[i]; }
+    private:
+        KeyedVector<LayerBase*, size_t> lookup;
+        Vector<LayerBase*>              layers;
+    };
+
+    struct State {
+        State() {
+            orientation = ISurfaceComposer::eOrientationDefault;
+            freezeDisplay = 0;
+        }
+        LayerVector     layersSortedByZ;
+        uint8_t         orientation;
+        uint8_t         freezeDisplay;
+    };
+
+    class DelayedTransaction : public Thread
+    {
+        friend class SurfaceFlinger;
+        sp<SurfaceFlinger>  mFlinger;
+        nsecs_t             mDelay;
+    public:
+        DelayedTransaction(const sp<SurfaceFlinger>& flinger, nsecs_t delay)
+            : Thread(false), mFlinger(flinger), mDelay(delay) {
+        }
+        virtual bool threadLoop() {
+            usleep(mDelay / 1000);
+            if (android_atomic_and(~1,
+                    &mFlinger->mDeplayedTransactionPending) == 1) {
+                mFlinger->signalEvent();
+            }
+            return false;
+        }
+    };
+
+    virtual bool        threadLoop();
+    virtual status_t    readyToRun();
+    virtual void        onFirstRef();
+
+    const GraphicPlane&     graphicPlane(int dpy) const;
+          GraphicPlane&     graphicPlane(int dpy);
+
+            void        waitForEvent();
+            void        signalEvent();
+            void        signalDelayedEvent(nsecs_t delay);
+
+            void        handleConsoleEvents();
+            void        handleTransaction(uint32_t transactionFlags);
+
+            void        computeVisibleRegions(
+                            LayerVector& currentLayers,
+                            Region& dirtyRegion,
+                            Region& wormholeRegion);
+
+            void        handlePageFlip();
+            bool        lockPageFlip(const LayerVector& currentLayers);
+            void        unlockPageFlip(const LayerVector& currentLayers);
+            void        handleRepaint();
+            void        handleDebugCpu();
+            void        scheduleBroadcast(Client* client);
+            void        executeScheduledBroadcasts();
+            void        postFramebuffer();
+            void        composeSurfaces(const Region& dirty);
+            void        unlockClients();
+
+
+            void        destroyConnection(ClientID cid);
+            LayerBaseClient* getLayerUser_l(SurfaceID index) const;
+            status_t    addLayer_l(LayerBase* layer);
+            status_t    removeLayer_l(LayerBase* layer);
+            void        destroy_all_removed_layers_l();
+            void        free_resources_l();
+
+            uint32_t    getTransactionFlags(uint32_t flags);
+            uint32_t    setTransactionFlags(uint32_t flags, nsecs_t delay = 0);
+            void        commitTransaction();
+
+
+            friend class FreezeLock;
+            sp<FreezeLock> getFreezeLock() const;
+            inline void incFreezeCount() { mFreezeCount++; }
+            inline void decFreezeCount() { if (mFreezeCount > 0) mFreezeCount--; }
+            inline bool hasFreezeRequest() const { return mFreezeDisplay; }
+            inline bool isFrozen() const { 
+                return mFreezeDisplay || mFreezeCount>0;
+            }
+
+            
+            void        debugFlashRegions();
+            void        debugShowFPS() const;
+            void        drawWormhole() const;
+           
+                // access must be protected by mStateLock
+    mutable     Mutex                   mStateLock;
+                State                   mCurrentState;
+                State                   mDrawingState;
+    volatile    int32_t                 mTransactionFlags;
+    volatile    int32_t                 mTransactionCount;
+                Condition               mTransactionCV;
+
+                // protected by mStateLock (but we could use another lock)
+                Tokenizer                               mTokens;
+                DefaultKeyedVector<ClientID, Client*>   mClientsMap;
+                DefaultKeyedVector<SurfaceID, LayerBaseClient*>   mLayerMap;
+                GraphicPlane                            mGraphicPlanes[1];
+                SortedVector<LayerBase*>                mRemovedLayers;
+                Vector<Client*>                         mDisconnectedClients;
+
+                // constant members (no synchronization needed for access)
+                sp<MemoryDealer>            mServerHeap;
+                sp<IMemory>                 mServerCblkMemory;
+                surface_flinger_cblk_t*     mServerCblk;
+                sp<SurfaceHeapManager>      mSurfaceHeapManager;
+                sp<GPUHardwareInterface>    mGPU;
+                GLuint                      mWormholeTexName;
+                sp<BootAnimation>           mBootAnimation;
+                nsecs_t                     mBootTime;
+                
+                // Can only accessed from the main thread, these members
+                // don't need synchronization
+                Region                      mDirtyRegion;
+                Region                      mInvalidRegion;
+                Region                      mWormholeRegion;
+                Client*                     mLastScheduledBroadcast;
+                SortedVector<Client*>       mScheduledBroadcasts;
+                bool                        mVisibleRegionsDirty;
+                bool                        mDeferReleaseConsole;
+                bool                        mFreezeDisplay;
+                int32_t                     mFreezeCount;
+                nsecs_t                     mFreezeDisplayTime;
+                friend class OrientationAnimation;
+                OrientationAnimation*       mOrientationAnimation;
+
+                // access protected by mDebugLock
+    mutable     Mutex                       mDebugLock;
+                sp<CPUGauge>                mCpuGauge;
+
+                // don't use a lock for these, we don't care
+                int                         mDebugRegion;
+                int                         mDebugCpu;
+                int                         mDebugFps;
+                int                         mDebugBackground;
+                int                         mDebugNoBootAnimation;
+
+                // these are thread safe
+    mutable     Barrier                     mReadyToRunBarrier;
+    mutable     SurfaceFlingerSynchro       mSyncObject;
+    volatile    int32_t                     mDeplayedTransactionPending;
+
+                // atomic variables
+                enum {
+                    eConsoleReleased = 1,
+                    eConsoleAcquired = 2
+                };
+   volatile     int32_t                     mConsoleSignals;
+
+   // only written in the main thread, only read in other threads
+   volatile     int32_t                     mSecureFrameBuffer;
+};
+
+// ---------------------------------------------------------------------------
+
+class FreezeLock : public LightRefBase<FreezeLock> {
+    SurfaceFlinger* mFlinger;
+public:
+    FreezeLock(SurfaceFlinger* flinger)
+        : mFlinger(flinger) {
+        mFlinger->incFreezeCount();
+    }
+    ~FreezeLock() {
+        mFlinger->decFreezeCount();
+    }
+};
+
+// ---------------------------------------------------------------------------
+
+class BClient : public BnSurfaceFlingerClient
+{
+public:
+    BClient(SurfaceFlinger *flinger, ClientID cid,
+            const sp<IMemory>& cblk);
+    ~BClient();
+
+    // ISurfaceFlingerClient interface
+    virtual void getControlBlocks(sp<IMemory>* ctrl) const;
+
+    virtual sp<ISurface> createSurface(
+            surface_data_t* params, int pid,
+            DisplayID display, uint32_t w, uint32_t h,PixelFormat format,
+            uint32_t flags);
+
+    virtual status_t destroySurface(SurfaceID surfaceId);
+    virtual status_t setState(int32_t count, const layer_state_t* states);
+
+private:
+    ClientID            mId;
+    SurfaceFlinger*     mFlinger;
+    sp<IMemory>         mCblk;
+};
+
+// ---------------------------------------------------------------------------
+}; // namespace android
+
+#endif // ANDROID_SURFACE_FLINGER_H