/***************************************************************************
 * E-Com Technology Ltd.
 *
 * ECOMPACS DICOM Network Transport Libraries * Version 0.1 Beta
 ***************************************************************************/

#ifndef __IMAGE_PROCESS__
#define __IMAGE_PROCESS__


class	TransferSyntax;


//////////////////////////////////////////////////////////////////////
// class ImageProcess
class DICOM_API ImageProcess
{
public:
	UINT32		ImageHandle0;	// Used for display system, such as HBITMAP or HDIB
	UINT32		ImageHandle1;	// Used for display system, such as HPALETTE or Palette index
	UINT32		ImageHandle2;	// Other handles
	UINT32		ImageHandle3;

public:
	void	*	RawPixelData;			// Raw Pixel Data (decompressed)
	UINT32		RawPixelLength;

	UINT16		RawBitsAllocated;		// (0028,0100)
	UINT16		RawBitsStored;			// (0028,0101)
	UINT16		RawHighBit;				// (0028,0102)

	UINT16		Rows;					// (0028,0010)
	UINT16		Columns;				// (0028,0011)

	void	*	CompPixelData;			// Pixel Data (compressed)
	UINT32		CompPixelLength;

	UINT16		CompBitsAllocated;		// (0028,0100)
	UINT16		CompBitsStored;			// (0028,0101)
	UINT16		CompHighBit;			// (0028,0102)

	int			WindowCenter;			// (0028,1050)
	int			WindowWidth;			// (0028,1051)

	UINT16		usSmallestValue;		// (0028,0106)
	INT16		ssSmallestValue;		// (0028,0106)
	UINT16		usLargestValue;			// (0028,0107)
	INT16		ssLargestValue;			// (0028,0107)

	double		PixelSpacingX;			// (0028,0030)
	double		PixelSpacingY;			// (0028,0030)

	double		RescaleIntercept;		// (0028,1052)
	double		RescaleSlope;			// (0028,1053)

	int			NumberOfFrames;			// (0028,0008)
	int			FrameIndex;				//

	UINT16		PixelRepresentation;	// (0028,0103)
	char		PhotometricInterpretation[65];	// (0028,0004)

	char		Modality[17];

	DICOMImage	&	DicomImage;

	int			JPEGQuality;

	UINT32		lParam;

public:
	static BYTE	LUT244To256 [256]; 
	static BYTE	LUT256To244 [256]; 

protected:
	static void	Init256_244LUT (void);

public:	
	 ImageProcess (DICOMImage & theImage, int FrameIndex = 0);
    ~ImageProcess ();

	void		Reset (void);

	void		SetTransferSyntax (const UID & TrnsynUID);

	void		ReleasePixelData (void);

	void	*	Detach (void);

	BOOL		ConvertTo (const UID & TrnsynUID);
	BOOL		ConvertToRaw (void);

	BOOL		JPEGBaselineEncode (void);
	BOOL		JPEGBaselineDecode (void);

	BOOL		JPEGProc14Encode (void);
	BOOL		JPEGProc14Decode (void);

	BOOL		JPEGProc14SV1Encode (void);
	BOOL		JPEGProc14SV1Decode (void);

	BOOL		JPEGExtendedProcEncode (void);
	BOOL		JPEGExtendedProcDecode (void);

	BOOL		JPEGSpectralProcEncode (void);
	BOOL		JPEGSpectralProcDecode (void);

	BOOL		JPEGFullProgressEncode (void);
	BOOL		JPEGFullProgressDecode (void);

	BOOL		RLEEncode (void);
	BOOL		RLEDecode (void);

	BOOL		JP2KLosslessEncode (void);
	BOOL		JP2KLosslessDecode (void);

	BOOL		JP2KLossyEncode (void);
	BOOL		JP2KLossyDecode (void);

	BOOL		AutoWindowLevel (void);

	BOOL		Invert (void);
	BOOL		Remap (void);

	BOOL		SaveAsWindowsBitmap (const char * filename);
	BOOL		SaveAsJPEGBaseline  (const char * filename);
	BOOL		SaveAsRaw			(const char * filename);

	BOOL		SetAutoRemoveImage (BOOL bRemove) 
	{ 
		BOOL bOld = bAutoRemoveImage; 
		bAutoRemoveImage = bRemove; 
		return bOld;
	}

	RealImage *	CreateRealImage (void);

protected:
	TransferSyntax	*	ImageTransferSyntax;

	void	*	OrgPixelData;		// Formated for .BMP (adjusted for window level and center)
	UINT32		OrgPixelLength;

	BOOL		IsColor;

	BOOL		bAutoRemoveImage;

private:
	BOOL		UpdateSelf ();

	void		ReleaseRawPixelData ();
	void		ReleaseCompPixelData ();

protected:
	BOOL		ConvertToCompress (const UID & TrnsynUID);
	BOOL		ConvertToDecompress (void);

public:
	static	BOOL AutoWindowLevel_UINT8 (void * PixelData, int Width, int Height, int Depth, int * WindowWidth, int * WindowCenter);
	static	BOOL AutoWindowLevel_INT16 (void * PixelData, int Width, int Height, int Depth, int * WindowWidth, int * WindowCenter);
	static	BOOL AutoWindowLevel_UINT16 (void * PixelData, int Width, int Height, int Depth, int * WindowWidth, int * WindowCenter);

friend			DICOMImage;
};


#endif