//////////////////////////////////////////////////////////////
//Name:compress.c
//Purpose:?Run?length?algorithm?and?Jpeg?decoding
//Author:?phoenix?CS?TshingHua?Beijing?P.R.C.
//Email:?bjlufengjun@www.163.net?or?lufengjun@hotmail.com
//Date:April?3?1998

//header?file
#include?“bmp.h“
#include?“jpeg.h“
#include?“memory.h“
#include?“math.h“
#include?“stdio.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

//function?declaration
int?PASCAL?WinMain?（HANDLE?HANDLE?LPSTR?int）;
LRESULT?CALLBACK?MainWndProc（HWND??UINTWPARAM?LPARAM）;
BOOL?LoadPcxFile（HWND?hWndchar?*BmpFileName）;
void?ReadPcxLine（unsigned?char?*pFILE?*fp）;
//////////////////////////////////////////////////
//Jpeg?functions
BOOL?LoadJpegFile（HWND?hWndchar?*BmpFileName）;
void?showerror（int?funcret）;
int??InitTag（）;
void?InitTable（）;
int??Decode（）;
int??DecodeMCUBlock（）;
int??HufBlock（BYTE?dchufindexBYTE?achufindex）;
int??DecodeElement（）;
void?IQtIZzMCUComponent（short?flag）;
void?IQtIZzBlock（short??*s?int?*?dshort?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;
HPALETTE???????????hPalette=NULL;
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_HSampRate_Y_V;
short			SampRate_U_HSampRate_U_V;
short			SampRate_V_HSampRate_V_V;
short			H_YtoUV_YtoUH_YtoVV_YtoV;
short			Y_in_MCUU_in_MCUV_in_MCU;
unsigned?char???*lpJpegBuf;
unsigned?char???*lp;
short			qt_table[3][64];
short			comp_num;
BYTE			comp_index[3];
BYTE		????YDcIndexYAcIndexUVDcIndexUVAcIndex;
BYTE			HufTabIndex;
short		????*YQtTable*UQtTable*VQtTable;
BYTE			And[9]={01370xf0x1f0x3f0x7f0xff};
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			BitPosCurByte;
short			rrunvvalue;
short			MCUBuffer[10*64];
int				QtZzMCUBuffer[10*64];
short			BlockBuffer[64];
short			ycoefucoefvcoef;
BOOL			IntervalFlag;
short			interval=0;
int				Y[4*64]U[4*64]V[4*64];
DWORD		????sizeisizej;
short?			restart;
static??long	iclip[1024];
static??long	*iclp;
///////////////////////////////////////////////////////////
int?PASCAL?WinMain?（HANDLE?hInstance?HANDLE?hPrevInstance
		????LPSTR?lpszCmdLine?int?nCmdShow）

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????文件??????265568??1998-05-07?10:32??Bmp.aps
?????文件?????????142??1998-04-23?13:47??Bmp.h
?????文件?????????331??1998-04-23?15:47??Bmp.rc
?????文件???????32030??1998-04-25?09:37??compress.c
?????文件???????43008??1998-05-06?09:20??compress.exe
?????文件?????????758??1998-04-23?14:04??JPEG.H
?????文件?????????183??2000-06-11?09:44??readme.txt
?????文件???????13310??1995-11-22?14:50??test.jpg