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// TifIFD.h: interface for the CTifIFD class. 
// 
////////////////////////////////////////////////////////////////////// 
 
#if !defined(AFX_TIFIFD_H__48A36A65_0A10_11D3_9481_000021003EA5__INCLUDED_) 
#define AFX_TIFIFD_H__48A36A65_0A10_11D3_9481_000021003EA5__INCLUDED_ 
 
#if _MSC_VER > 1000 
#pragma once 
#endif // _MSC_VER > 1000 
 
#include "TifHeader.h" 
#include "Dib.h" 
 
class CTifIFD   
{ 
public: 
	CTifIFD(); 
	virtual ~CTifIFD(); 
 
private:	// members 
	// --- used in ProcessLine()  
	LPBYTE m_lpFaxline;		// array of dest_width 
	int	m_lnIndex;			// index to byte in array 
	int m_lnThisbit;		// unused bits in byte  
	int m_lnRow;			// count of lines printed 
	int m_lnLastSaveByte;	// save last significant char 
	int	m_lnFaxBytes;		// output raster line 
	int m_lnSliceBytes;		// number of bytes in a slice 
	int m_ln2DIndex;		// index to byte in 2-D array 
	int m_ln2DBit;			// unused bits in byte 2-D array 
 
public:	 
	/*Output: 
		Purpose:			Out put decode bit to buffer. 
		Parameter passed:	DEVPARMS *device-----Indicates dest mode will 
							be output. 
							unsigned char *our_line 
							int our_row 
							int lsb 
 
	InitDecoding: 
		Purpose:			Initialize parameters and alloc memory. 
		Parameter passed:	None. 
		Value returned:		Nonzero if success, else return 0; 
 
	ProcessLine: 
		Purpose:			To compose and Output decoded scan lines. At the 
							define of this function there was detail msg. 
		Parameter passed:	DEVPARMS *device-----pointer to DEVPARMS structure (see decode.h) 
							int iRunlength:integer value of run length. 
		Value returned:		integer 0 for failure, 1 for success. 
 
	UnpackAsDib: 
		Purpose:			Unpack a tiff file to a dib object. 
		Parameter passed:	none 
		Value returned:		memory handle of DIB block */ 
	BOOL Output(DEVPARMS *device, unsigned char *our_line,int our_row,int lsb); 
	BOOL InitDecoding(); 
	int ProcessLine (DEVPARMS *device,int iRunlength); 
	HDIB UnpackAsDib(); 
	 
	int VerticalScale(DEVPARMS *device,long int count); 
	int HorizScale(DEVPARMS *device,long int run); 
 
	BOOL VertFlipBuf(BYTE* inbuf, UINT widthBytes, UINT height); 
	void FreeOutImageMem(); 
	void FreeMem(); 
	BOOL LoadIFD(HANDLE hFile,WORD wByteOrderFlag); 
	 
	// members 
public: 
	long m_lVRes; 
	long m_lHRes; 
	long m_lOldVRes; 
	long m_lOldHRes; 
 
	long m_lImgWidth;	// this is the saved image size 
	long m_lImgHeight;	 
	 
	TIFFMARK* m_pEntry; 
 
	OUTPUTIMAGE m_outImage; 
	TIFFIMAGE m_image; 
}; 
 
#endif // !defined(AFX_TIFIFD_H__48A36A65_0A10_11D3_9481_000021003EA5__INCLUDED_)