Bitmap.h

   1 #ifndef BITMAP_H
   2 #define BITMAP_H
   3
   4 #define WORD unsigned short
   5 #define DWORD unsigned int
   6 #define LONG DWORD
   7
   8 #define M_BITMAPFILEHEADER                                              \
   9         WORD  bfType ;        /* signature word "BM" or 0x4D42 */       \
  10         DWORD bfSize ;        /* entire size of file */                 \
  11         WORD  bfReserved1 ;   /* must be zero */                        \
  12         WORD  bfReserved2 ;   /* must be zero */                        \
  13         DWORD bfOffsetBits ;  /* offset in file of DIB pixel bits */    \
  14
  15 /* note: original had biWidth/Height as WORD, thus size 12 */
  16 #define M_BITMAPCOREHEADER                                              \
  17         DWORD biSize ;      /* size of the structure = 12 */            \
  18         LONG  biWidth ;     /* width of image in pixels */              \
  19         LONG  biHeight ;    /* height of image in pixels */             \
  20         WORD  biPlanes ;    /* = 1 */                                   \
  21         WORD  biBitCount ;  /* bits per pixel (1, 4, 8, or 24) */       \
  22
  23 #define M_BITMAPINFOHEADER                                              \
  24         M_BITMAPCOREHEADER                                              \
  25         DWORD biCompression ;    /* compression code */                 \
  26         DWORD biSizeImage ;      /* number of bytes in image */         \
  27         LONG  biXPelsPerMeter ;  /* horizontal resolution */            \
  28         LONG  biYPelsPerMeter ;  /* vertical resolution */              \
  29         DWORD biClrUsed ;        /* number of colors used */            \
  30         DWORD biClrImportant ;   /* number of important colors */       \
  31
  32 #define M_BITMAPV2INFOHEADER                                            \
  33         M_BITMAPINFOHEADER                                              \
  34         DWORD biRedMask ;        /* Red color mask */                   \
  35         DWORD biGreenMask ;      /* Green color mask */                 \
  36         DWORD biBlueMask ;       /* Blue color mask */                  \
  37
  38 #define M_BITMAPV3INFOHEADER                                            \
  39         M_BITMAPV2INFOHEADER                                            \
  40         DWORD biAlphaMask ;      /* Alpha mask */                       \
  41
  42 #define M_BITMAPV4HEADER                                                \
  43         M_BITMAPV3INFOHEADER                                            \
  44         DWORD biCSType ;         /* color space type */                 \
  45         LONG  biRedX;            /* X coordinate of red endpoint */     \
  46         LONG  biRedY;            /* Y coordinate of red endpoint */     \
  47         LONG  biRedZ;            /* Z coordinate of red endpoint */     \
  48         LONG  biGreenX;          /* X coordinate of green endpoint */   \
  49         LONG  biGreenY;          /* Y coordinate of green endpoint */   \
  50         LONG  biGreenZ;          /* Z coordinate of green endpoint */   \
  51         LONG  biBlueX;           /* X coordinate of blue endpoint */    \
  52         LONG  biBlueY;           /* Y coordinate of blue endpoint */    \
  53         LONG  biBlueZ;           /* Z coordinate of blue endpoint */    \
  54         DWORD biGammaRed ;       /* Red gamma value */                  \
  55         DWORD biGammaGreen ;     /* Green gamma value */                \
  56         DWORD biGammaBlue ;      /* Blue gamma value */                 \
  57
  58 #define M_BITMAPV5HEADER                                                \
  59         M_BITMAPV4HEADER                                                \
  60         DWORD biIntent ;         /* rendering intent */                 \
  61         DWORD biProfileData ;    /* profile data or filename */         \
  62         DWORD biProfileSize ;    /* size of embedded data or filename */\
  63         DWORD biReserved ;                                              \
  64
  65 #define BMP_STRUCT_DECL(X)                      \
  66 struct X {                                      \
  67         M_ ## X                                 \
  68 } __attribute__((packed, aligned(2)))
  69
  70 BMP_STRUCT_DECL(BITMAPFILEHEADER);
  71 BMP_STRUCT_DECL(BITMAPCOREHEADER);
  72 BMP_STRUCT_DECL(BITMAPINFOHEADER);
  73 BMP_STRUCT_DECL(BITMAPV2INFOHEADER);
  74 BMP_STRUCT_DECL(BITMAPV3INFOHEADER);
  75 BMP_STRUCT_DECL(BITMAPV4HEADER);
  76 BMP_STRUCT_DECL(BITMAPV5HEADER);
  77
  78 #undef BMP_STRUCT_DECL
  79
  80 #define BMP_STRUCT_DECL_X(X)    \
  81 struct X ## _X {                \
  82         M_BITMAPFILEHEADER      \
  83         M_ ## X                 \
  84 }  __attribute__((packed, aligned (2)))
  85
  86
  87 BMP_STRUCT_DECL_X(BITMAPCOREHEADER);
  88 BMP_STRUCT_DECL_X(BITMAPINFOHEADER);
  89 BMP_STRUCT_DECL_X(BITMAPV2INFOHEADER);
  90 BMP_STRUCT_DECL_X(BITMAPV3INFOHEADER);
  91 BMP_STRUCT_DECL_X(BITMAPV4HEADER);
  92 BMP_STRUCT_DECL_X(BITMAPV5HEADER);
  93
  94 #undef BMP_STRUCT_DECL_X
  95
  96 #endif