utils/wpseditor/screenshot/bmp.h

   1 /* $Id$ */
   2 #ifdef __cplusplus
   3 extern "C" {
   4 #endif
   5
   6 /*
   7         gd_bmp.c
   8
   9         Bitmap format support for libgd
  10
  11         * Written 2007, Scott MacVicar
  12         ---------------------------------------------------------------------------
  13
  14         Todo:
  15
  16         RLE4, RLE8 and Bitfield encoding
  17         Add full support for Windows v4 and Windows v5 header formats
  18
  19         ----------------------------------------------------------------------------
  20  */
  21
  22 #ifndef BMP_H
  23 #define BMP_H   1
  24
  25 #define BMP_PALETTE_3 1
  26 #define BMP_PALETTE_4 2
  27
  28 #define BMP_WINDOWS_V3 40
  29 #define BMP_OS2_V1 12
  30 #define BMP_OS2_V2 64
  31 #define BMP_WINDOWS_V4 108
  32 #define BMP_WINDOWS_V5 124
  33
  34 #define BMP_BI_RGB 0
  35 #define BMP_BI_RLE8 1
  36 #define BMP_BI_RLE4 2
  37 #define BMP_BI_BITFIELDS 3
  38 #define BMP_BI_JPEG 4
  39 #define BMP_BI_PNG 5
  40
  41 #define BMP_RLE_COMMAND 0
  42 #define BMP_RLE_ENDOFLINE 0
  43 #define BMP_RLE_ENDOFBITMAP 1
  44 #define BMP_RLE_DELTA 2
  45
  46 #define BMP_RLE_TYPE_RAW 0
  47 #define BMP_RLE_TYPE_RLE 1
  48
  49 /* BMP header. */
  50 typedef struct
  51 {
  52         /* 16 bit - header identifying the type */
  53         signed short int magic;
  54
  55         /* 32bit - size of the file */
  56         int size;
  57
  58         /* 16bit - these two are in the spec but "reserved" */
  59         signed short int reserved1;
  60         signed short int reserved2;
  61
  62         /* 32 bit - offset of the bitmap header from data in bytes */
  63         signed int off;
  64
  65 } bmp_hdr_t;
  66
  67 /* BMP info. */
  68 typedef struct
  69 {
  70         /* 16bit - Type, ie Windows or OS/2 for the palette info */
  71         signed short int type;
  72         /* 32bit - The length of the bitmap information header in bytes. */
  73         signed int len;
  74
  75         /* 32bit - The width of the bitmap in pixels. */
  76         signed int width;
  77
  78         /* 32bit - The height of the bitmap in pixels. */
  79         signed int height;
  80
  81         /* 8 bit - The bitmap data is specified in top-down order. */
  82         signed char topdown;
  83
  84         /* 16 bit - The number of planes.  This must be set to a value of one. */
  85         signed short int numplanes;
  86
  87         /* 16 bit - The number of bits per pixel. */
  88         signed short int depth;
  89
  90         /* 32bit - The type of compression used. */
  91         signed int enctype;
  92
  93         /* 32bit - The size of the image in bytes. */
  94         signed int size;
  95
  96         /* 32bit - The horizontal resolution in pixels/metre. */
  97         signed int hres;
  98
  99         /* 32bit - The vertical resolution in pixels/metre. */
 100         signed int vres;
 101
 102         /* 32bit - The number of color indices used by the bitmap. */
 103         signed int numcolors;
 104
 105         /* 32bit - The number of color indices important for displaying the bitmap. */
 106         signed int mincolors;
 107
 108 } bmp_info_t;
 109
 110 #endif
 111
 112 #ifdef __cplusplus
 113 }
 114 #endif