#ifndef WINICO_H_INCLUDED

#define WINICO_H_INCLUDED

/* A specification for the Windows icon format is at   (2000.06.08)

   http://www.daubnet.com/formats/ICO.html

*/

typedef unsigned char      u1;

typedef unsigned short int u2;

typedef unsigned int       u4;

typedef struct MS_Ico_ *          MS_Ico;

typedef struct IC_Entry_ *        IC_Entry;

typedef struct IC_InfoHeader_ *   IC_InfoHeader;

typedef struct IC_Color_ *        IC_Color;

/* Not part of the spec, but useful in constructing the icon. */

typedef struct IC_Palette_ *      IC_Palette;

typedef struct ICON_bmp_ *        ICON_bmp;

struct MS_Ico_ {

   u2 reserved;

   u2 type;

   u2 count;

   IC_Entry * entries;

};

struct IC_Entry_ {

   u1 width;

   u1 height;

   /*

    * color_count is actually a byte (u1)... but 0 = 256, so I've used a short (u2).

    */

   u2 color_count;

   u1 reserved;

   u2 planes;

   u2 bitcount;

   u4 size_in_bytes;

   u4 file_offset;

   IC_InfoHeader ih;

   IC_Color * colors;

   /*

    * Below here, I have useful fields which aren't in the spec, but 

    * save having to keep stoopid amounts of global data.

    */

   u1 * andBitmap;        /* Used in reader. */

   u1 * xorBitmap;

   int xBytesXor;         /* Not used in reading, but saved for writing. */

   int xBytesAnd;         /* Not used in reading, but saved for writing. */

   u1 ** andBitmapOut;    /* it's just easier to use a 2d array in the code.*/

   u1 ** xorBitmapOut;    /* Sorry! :) */

};

struct IC_InfoHeader_ {

   u4 size;

   u4 width;

   u4 height;

   u2 planes;

   u2 bitcount;

   u4 compression;

   u4 imagesize;

   u4 x_pixels_per_m;

   u4 y_pixels_per_m;

   u4 colors_used;

   u4 colors_important;

};

struct IC_Color_ {

   u1 red;

   u1 green;

   u1 blue;

   u1 reserved;

};

struct IC_Palette_ {

   u4 col_amount;

   IC_Color * colors;

};

struct ICON_bmp_ {

   int xBytes;

   u4 size;    /* just col_amount * height, but save calculating too often. */

   u1 ** data;

};

#endif