bmp.h

C语言实现的JPEG解码程序 效率比较高

#ifndef __BMP__
#define __BMP__


typedef char CHAR;
typedef short SHORT;
typedef long LONG;

 

typedef unsigned long       DWORD;
typedef int                 BOOL;
typedef unsigned char       BYTE;
typedef unsigned short      WORD;

 

typedef int HFILE;
typedef CHAR *LPSTR, *PSTR;

#define FALSE 0
#define TRUE 1


 typedef struct BITMAPINFOHEADER{
        DWORD      biSize;
        LONG       biWidth;
        LONG       biHeight;
        WORD       biPlanes;
        WORD       biBitCount;
        DWORD      biCompression;
        DWORD      biSizeImage;
        LONG       biXPelsPerMeter;
        LONG       biYPelsPerMeter;
        DWORD      biClrUsed;
        DWORD      biClrImportant;
} BITMAPINFOHEADER, * LPBITMAPINFOHEADER,*PBITMAPINFOHEADER;

 typedef struct BITMAPFILEHEADER {
        WORD    bfType;
        WORD    bfSize_lo;
        WORD    bfSize_hi;
	//	DWORD   bfSize;
        WORD    bfReserved1;
        WORD    bfReserved2;
		WORD    bfOffBits_lo;
		WORD    bfOffBits_hi;
    //    DWORD   bfOffBits;
}  BITMAPFILEHEADER,  * LPBITMAPFILEHEADER,*PBITMAPFILEHEADER;

/* constants for the biCompression field */
#define BI_RGB        0L
#define BI_RLE8       1L
#define BI_RLE4       2L
#define BI_BITFIELDS  3L


 typedef struct RGBQUAD {
        BYTE    rgbBlue;
        BYTE    rgbGreen;
        BYTE    rgbRed;
        BYTE    rgbReserved;
} RGBQUAD;
typedef struct RGBQUAD * LPRGBQUAD;


#define MAKEWORD(a, b)      ((WORD)(((BYTE)(a)) | ((WORD)((BYTE)(b))) << 8))
#define MAKELONG(a, b)      ((LONG)(((WORD)(a)) | ((DWORD)((WORD)(b))) << 16))
#define LOWORD(l)           ((WORD)(l))
#define HIWORD(l)           ((WORD)(((DWORD)(l) >> 16) & 0xFFFF))
#define LOBYTE(w)           ((BYTE)(w))
#define HIBYTE(w)           ((BYTE)(((WORD)(w) >> 8) & 0xFF))

#endif // __JENC__//---yk--- add