// forward decleration

     * NewL

            CFbsBitmap* aFsBitmap, MGlxGenCallback* aCallBack);

     * Destructor

    void UpdateNewImageL(const TDesC& aImageFile,CFbsBitmap* aFsBitmap);

     * Deactivate Zoom 

     */

    /*

     */

    void ShiftToCloningMode();

    /*

     */

    void ShiftToPostingMode();

     * Constructor 

    CGlxHdmiSurfaceUpdater(RWindow* aWindow, MGlxGenCallback* aCallBack);

    void ConstructL(CFbsBitmap* aFsBitmap,const TDesC& aImageFile);   

     * @param1 size 

     */

    void MapSurfaceL();

    /*

     * This fundtion wont be called , could be used if double buffering is planned in future

     * to start the second decoder AO and update the surface with a new session. 

     */

    void CreateImageDecoderL();

    /*

     * This if for zoom timer timeout

     */

    /*

     * ModifySurface positions of the surface to be displayed on screen

     */

    void ModifySurfacePostion();

    /*

     * Process the image for TV 

     */

    void ProcessTvImage();

    /*

     * Shows the FS thumbnail first before showing 

     * Decoded HD image 

     */

    void ShowFsThumbnailL();

    /*

     * Recalculate the size for png/bmp as decoder fails to 

     * decode for desired size 

     */

    TSize ReCalculateSizeL();

    /*

     * If the image format is non jpeg, then we need to calculate as per

     * reduction factor and reduced size as what the decoder is going to return us

     * This function returns if that needs to be done. 

     */

    TBool DoesMimeTypeNeedsRecalculateL();

    /*

     * If the image format is non jpeg, then we need to scale the bitmap after it is

     * decoded, as the return value would not fit the screen 

     */

    void ScaleDecodedBitmapL(TInt aBitmapIndex);

    /*

     * InitiateHDMI

     */

    void InitiateHdmiL(CFbsBitmap* aFsBitmap,const TDesC& aImageFile);

    RWindow*        iWindow;                        // window object

    CFbsBitmap*     iFsBitmap;                      // FS bitmap

    MGlxGenCallback* iCallBack;                     // callback to the HdmiContainer window

    HBufC*          iImagePath;                     // To store the image uri path

    CFbsBitmap*         iDecodedBitmap[3];          // Array of Decoded bitmaps of the focussed image

                                                    // 1 - contains FS/Grid Thumbnail, 2- HD image, 

                                                    // (optional)3-Scaled png/bmp images

    TPoint      iLeftCornerForZoom;                 //  

    CPeriodic*  iTimer;                             // Timer for Zoom   

    // Various objects to store sizes and count

    TSize       iTvScreenSize;                      // to store the Tv screen size

    TSize       iTargetBitmapSize;                  // To Store the target bitmap size to display(as per Aspect Ratio)

    // Various flags to store values

    TBool       iZoom;                              // Is zoomed

    TBool       iBitmapReady;                       // If the bitmap is decoded and ready

    TBool       iAutoZoomOut;                       // If the UI has asked for auto zoomout

    TBool       iSurfSessionConnected;              // If surface session is connected

    TBool       iShwFsThumbnail;                    // If the Fs thumbnail is to be shown before decoding HD images

    TBool       iIsNonJpeg;                         // If the item is non jpeg

	// The bitmap index in the array of bitmaps

    enum {

        EFSBitmapIndex = 0,

        EJpgDecodedBitmapIndex,

		ENonJpgDecodedBitmapIndex

        };