//?JpgToBmp.cpp?:?定義控制臺應用程序的入口點。
//

#include?“stdafx.h“

/*
int?_tmain（int?argc?_TCHAR*?argv[]）
{
	return?0;
}
*/
#include
#include?“jpeg.h“
#include?“memory.h“
#include?“math.h“
#include?“stdio.h“
#include?“windows.h“

//macro?definition
#define?WIDTHBYTES（i）????（（i+31）/32*4）
#define?PI?3.1415926535
//define?return?value?of?function
#define?FUNC_OK?0
#define?FUNC_MEMORY_ERROR?1
#define?FUNC_FILE_ERROR?2
#define?FUNC_FORMAT_ERROR?3
//////////////////////////////////////////////////
//Jpeg?functions
BOOL?LoadJpegFile（char?*BmpFileName）;
void?showerror（int?funcret）;
int??InitTag（）;
void?InitTable（）;
int??Decode（）;
int??DecodeMCUBlock（）;
int??HufBlock（unsigned?char?dchufindex?unsigned?char?achufindex）;
int??DecodeElement（）;
void?IQtIZzMCUComponent（short?flag）;
void?IQtIZzBlock（short??*s?int?*?d?short?flag）;
void?GetYUV（short?flag）;
void?StoreBuffer（）;
BYTE?ReadByte（）;
void?Initialize_Fast_IDCT（）;
void?Fast_IDCT（int?*?block）;
void?idctrow（int?*?blk）;
void?idctcol（int?*?blk）;
//////////////////////////////////////////////////
//global?variable?declaration
BITMAPFILEHEADER???bf;
BITMAPINFOHEADER???bi;
HBITMAP????????????hBitmap?=?NULL;
HGLOBAL????????????hImgData?=?NULL;
DWORD??????????????NumColors;
DWORD??????????????LineBytes;
DWORD??????????????ImgWidth?=?0?ImgHeight?=?0;
unsigned?int???????PcxBytesPerLine;
LPSTR??????????????lpPtr;
//////////////////////////////////////////////////
//variables?used?in?jpeg?function
short			SampRate_Y_H?SampRate_Y_V;
short			SampRate_U_H?SampRate_U_V;
short			SampRate_V_H?SampRate_V_V;
short			H_YtoU?V_YtoU?H_YtoV?V_YtoV;
short			Y_in_MCU?U_in_MCU?V_in_MCU;
unsigned?char???*lpJpegBuf;
unsigned?char???*lp;
short			qt_table[3][64];
short			comp_num;
BYTE			comp_index[3];
BYTE		????YDcIndex?YAcIndex?UVDcIndex?UVAcIndex;
BYTE			HufTabIndex;
short		????*YQtTable?*UQtTable?*VQtTable;
BYTE			And[9]?=?{?0?1?3?7?0xf?0x1f?0x3f?0x7f?0xff?};
short		????code_pos_table[4][16]?code_len_table[4][16];
unsigned?short	code_value_table[4][256];
unsigned?short	huf_max_value[4][16]?huf_min_value[4][16];
short			BitPos?CurByte;
short			rrun?vvalue;
short			MCUBuffer[10?*?64];
int				QtZzMCUBuffer[10?*?64];
short			BlockBuffer[64];
short			ycoef?ucoef?vcoef;
BOOL			IntervalFlag;
short			interval?=?0;
int				Y[4?*?64]?U[4?*?64]?V[4?*?64];
DWORD		????sizei?sizej;
short?			restart;
static??long	iclip[1024];
static??long	*iclp;

////////////////////////////////////////////////////////////////
int?LoadJpegFile（char?*JpegFileName）
{
	HFILE			???hfjpg;
	DWORD?		???????ImgSize;
	DWORD??????????????JpegBufSize;
	HFILE??????????????hfbmp;
	HGLOBAL			???hJpegBuf;
	int				???funcret;
	LPBITMAPINFOHEADER?lpImgData;

	if?（（hfjpg?=?_lopen（JpegFileName?OF_READ））?==?HFILE_ERROR）
	{
		showerror（FUNC_FILE_ERROR）;
		return?0;
	}
	//get?jpg?file?length
	JpegBufSize?=?_llseek（hfjpg?0L?SEEK_END）;
	//rewind?to?

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

?????文件????????758??1998-04-23?14:04??JpgToBmp\JpgToBmp\JPEG.H

?????文件??????28491??2015-01-20?12:15??JpgToBmp\JpgToBmp\JpgToBmp.cpp

?????文件???????4571??2015-01-20?10:01??JpgToBmp\JpgToBmp\JpgToBmp.vcxproj

?????文件???????1401??2015-01-20?10:01??JpgToBmp\JpgToBmp\JpgToBmp.vcxproj.filters

?????文件???????1517??2015-01-20?09:59??JpgToBmp\JpgToBmp\ReadMe.txt

?????文件????????214??2015-01-20?09:59??JpgToBmp\JpgToBmp\stdafx.cpp

?????文件????????234??2015-01-20?09:59??JpgToBmp\JpgToBmp\stdafx.h

?????文件????????236??2015-01-20?09:59??JpgToBmp\JpgToBmp\targetver.h

?????文件??????94152??2008-10-10?00:26??JpgToBmp\JpgToBmp\test.jpg

?????文件????????970??2015-01-20?09:59??JpgToBmp\JpgToBmp.sln

????..A..H.?????22528??2015-01-20?12:15??JpgToBmp\JpgToBmp.v12.suo

?????目錄??????????0??2015-01-20?12:15??JpgToBmp\JpgToBmp

?????目錄??????????0??2015-01-20?12:15??JpgToBmp

-----------?---------??----------?-----??----

???????????????155072????????????????????13