diff --git a/services/surfaceflinger/Layer.h b/services/surfaceflinger/Layer.h
index 278d64e..72e290c 100644
--- a/services/surfaceflinger/Layer.h
+++ b/services/surfaceflinger/Layer.h
@@ -20,9 +20,11 @@
 #include <stdint.h>
 #include <sys/types.h>
 
+#include <gui/SurfaceTexture.h>
+
+#include <pixelflinger/pixelflinger.h>
 #include <ui/GraphicBuffer.h>
 #include <ui/PixelFormat.h>
-#include <pixelflinger/pixelflinger.h>
 
 #include <EGL/egl.h>
 #include <EGL/eglext.h>
@@ -30,8 +32,8 @@
 #include <GLES/glext.h>
 
 #include "LayerBase.h"
+#include "SurfaceTextureLayer.h"
 #include "Transform.h"
-#include "TextureManager.h"
 
 namespace android {
 
@@ -40,7 +42,6 @@
 class FreezeLock;
 class Client;
 class GLExtensions;
-class UserClient;
 
 // ---------------------------------------------------------------------------
 
@@ -58,164 +59,59 @@
     status_t setBuffers(uint32_t w, uint32_t h, 
             PixelFormat format, uint32_t flags=0);
 
-    // associate a UserClient to this Layer
-    status_t setToken(const sp<UserClient>& uc, SharedClient* sc, int32_t idx);
-    int32_t getToken() const;
-    sp<UserClient> getClient() const;
-
     // Set this Layer's buffers size
-    void setBufferSize(uint32_t w, uint32_t h);
     bool isFixedSize() const;
 
     // LayerBase interface
     virtual void setGeometry(hwc_layer_t* hwcl);
     virtual void setPerFrameData(hwc_layer_t* hwcl);
-    virtual void drawForSreenShot() const;
     virtual void onDraw(const Region& clip) const;
     virtual uint32_t doTransaction(uint32_t transactionFlags);
     virtual void lockPageFlip(bool& recomputeVisibleRegions);
     virtual void unlockPageFlip(const Transform& planeTransform, Region& outDirtyRegion);
-    virtual bool needsBlending(const sp<GraphicBuffer>& buffer) const;
-    virtual bool needsBlending() const;
+    virtual bool isOpaque() const;
     virtual bool needsDithering() const     { return mNeedsDithering; }
-    virtual bool needsFiltering() const;
     virtual bool isSecure() const           { return mSecure; }
     virtual bool isProtected() const;
-    virtual sp<Surface> createSurface() const;
     virtual void onRemoved();
 
     // only for debugging
-    inline sp<GraphicBuffer> getBuffer(int i) const {
-        return mBufferManager.getBuffer(i); }
-    // only for debugging
-    inline const sp<FreezeLock>&  getFreezeLock() const {
-        return mFreezeLock; }
+    inline const sp<FreezeLock>&  getFreezeLock() const { return mFreezeLock; }
 
 protected:
     virtual void destroy() const;
+    virtual void onFirstRef();
     virtual void dump(String8& result, char* scratch, size_t size) const;
 
 private:
-    void reloadTexture(const Region& dirty);
+    friend class SurfaceTextureLayer;
+    void onFrameQueued();
+    virtual sp<ISurface> createSurface();
     uint32_t getEffectiveUsage(uint32_t usage) const;
-    sp<GraphicBuffer> requestBuffer(int bufferIdx,
-            uint32_t w, uint32_t h, uint32_t format, uint32_t usage);
-    status_t setBufferCount(int bufferCount);
+    void setFixedSize(bool fixedSize);
+    bool isCropped() const;
+    static bool getOpacityForFormat(uint32_t format);
 
     // -----------------------------------------------------------------------
 
-    class SurfaceLayer : public LayerBaseClient::Surface {
-    public:
-        SurfaceLayer(const sp<SurfaceFlinger>& flinger, const sp<Layer>& owner);
-        ~SurfaceLayer();
-    private:
-        virtual sp<GraphicBuffer> requestBuffer(int bufferIdx,
-                uint32_t w, uint32_t h, uint32_t format, uint32_t usage);
-        virtual status_t setBufferCount(int bufferCount);
-        sp<Layer> getOwner() const {
-            return static_cast<Layer*>(Surface::getOwner().get());
-        }
-    };
-    friend class SurfaceLayer;
-
-    // -----------------------------------------------------------------------
-
-    class ClientRef {
-        ClientRef(const ClientRef& rhs);
-        ClientRef& operator = (const ClientRef& rhs);
-        mutable Mutex mLock;
-        // binder thread, page-flip thread
-        sp<SharedBufferServer> mControlBlock;
-        wp<UserClient> mUserClient;
-        int32_t mToken;
-    public:
-        ClientRef();
-        ~ClientRef();
-        int32_t getToken() const;
-        sp<UserClient> getClient() const;
-        status_t setToken(const sp<UserClient>& uc,
-                const sp<SharedBufferServer>& sharedClient, int32_t token);
-        sp<UserClient> getUserClientUnsafe() const;
-        class Access {
-            Access(const Access& rhs);
-            Access& operator = (const Access& rhs);
-            sp<UserClient> mUserClientStrongRef;
-            sp<SharedBufferServer> mControlBlock;
-        public:
-            Access(const ClientRef& ref);
-            ~Access();
-            inline SharedBufferServer* get() const { return mControlBlock.get(); }
-        };
-        friend class Access;
-    };
-
-    // -----------------------------------------------------------------------
-
-    class BufferManager {
-        static const size_t NUM_BUFFERS = 2;
-        struct BufferData {
-            sp<GraphicBuffer>   buffer;
-            Image               texture;
-        };
-        // this lock protect mBufferData[].buffer but since there
-        // is very little contention, we have only one like for
-        // the whole array, we also use it to protect mNumBuffers.
-        mutable Mutex mLock;
-        BufferData          mBufferData[SharedBufferStack::NUM_BUFFER_MAX];
-        size_t              mNumBuffers;
-        Texture             mFailoverTexture;
-        TextureManager&     mTextureManager;
-        ssize_t             mActiveBufferIndex;
-        sp<GraphicBuffer>   mActiveBuffer;
-        bool                mFailover;
-        static status_t destroyTexture(Image* tex, EGLDisplay dpy);
-
-    public:
-        static size_t getDefaultBufferCount() { return NUM_BUFFERS; }
-        BufferManager(TextureManager& tm);
-        ~BufferManager();
-
-        // detach/attach buffer from/to given index
-        sp<GraphicBuffer> detachBuffer(size_t index);
-        status_t attachBuffer(size_t index, const sp<GraphicBuffer>& buffer);
-        // resize the number of active buffers
-        status_t resize(size_t size, const sp<SurfaceFlinger>& flinger,
-                EGLDisplay dpy);
-
-        // ----------------------------------------------
-        // must be called from GL thread
-
-        // set/get active buffer index
-        status_t setActiveBufferIndex(size_t index);
-        size_t getActiveBufferIndex() const;
-        // return the active buffer
-        sp<GraphicBuffer> getActiveBuffer() const;
-        // return wether we have an active buffer
-        bool hasActiveBuffer() const;
-        // return the active texture (or fail-over)
-        Texture getActiveTexture() const;
-        // frees resources associated with all buffers
-        status_t destroy(EGLDisplay dpy);
-        // load bitmap data into the active buffer
-        status_t loadTexture(const Region& dirty, const GGLSurface& t);
-        // make active buffer an EGLImage if needed
-        status_t initEglImage(EGLDisplay dpy,
-                const sp<GraphicBuffer>& buffer);
-
-        // ----------------------------------------------
-        // only for debugging
-        sp<GraphicBuffer> getBuffer(size_t index) const;
-    };
-
-    // -----------------------------------------------------------------------
+    // constants
+    sp<SurfaceTextureLayer> mSurfaceTexture;
+    GLuint mTextureName;
 
     // thread-safe
-    ClientRef mUserClientRef;
+    volatile int32_t mQueuedFrames;
+
+    // main thread
+    sp<GraphicBuffer> mActiveBuffer;
+    GLfloat mTextureMatrix[16];
+    Rect mCurrentCrop;
+    uint32_t mCurrentTransform;
+    bool mCurrentOpacity;
 
     // constants
     PixelFormat mFormat;
     const GLExtensions& mGLExtensions;
-    bool mNeedsBlending;
+    bool mOpaqueLayer;
     bool mNeedsDithering;
 
     // page-flip thread (currently main thread)
@@ -226,18 +122,8 @@
     // page-flip thread and transaction thread (currently main thread)
     sp<FreezeLock>  mFreezeLock;
 
-    // see threading usage in declaration
-    TextureManager mTextureManager;
-    BufferManager mBufferManager;
-
     // binder thread, transaction thread
     mutable Mutex mLock;
-    uint32_t mWidth;
-    uint32_t mHeight;
-    uint32_t mReqWidth;
-    uint32_t mReqHeight;
-    uint32_t mReqFormat;
-    bool mNeedsScaling;
     bool mFixedSize;
 };