| /* $Id$ */ | |
| extern "C" { | |
| /* | |
| gd_bmp.c | |
| Bitmap format support for libgd | |
| * Written 2007, Scott MacVicar | |
| --------------------------------------------------------------------------- | |
| Todo: | |
| RLE4, RLE8 and Bitfield encoding | |
| Add full support for Windows v4 and Windows v5 header formats | |
| ---------------------------------------------------------------------------- | |
| */ | |
| /* BMP header. */ | |
| typedef struct { | |
| /* 16 bit - header identifying the type */ | |
| signed short int magic; | |
| /* 32bit - size of the file */ | |
| int size; | |
| /* 16bit - these two are in the spec but "reserved" */ | |
| signed short int reserved1; | |
| signed short int reserved2; | |
| /* 32 bit - offset of the bitmap header from data in bytes */ | |
| signed int off; | |
| } bmp_hdr_t; | |
| /* BMP info. */ | |
| typedef struct { | |
| /* 16bit - Type, ie Windows or OS/2 for the palette info */ | |
| signed short int type; | |
| /* 32bit - The length of the bitmap information header in bytes. */ | |
| signed int len; | |
| /* 32bit - The width of the bitmap in pixels. */ | |
| signed int width; | |
| /* 32bit - The height of the bitmap in pixels. */ | |
| signed int height; | |
| /* 8 bit - The bitmap data is specified in top-down order. */ | |
| signed char topdown; | |
| /* 16 bit - The number of planes. This must be set to a value of one. */ | |
| signed short int numplanes; | |
| /* 16 bit - The number of bits per pixel. */ | |
| signed short int depth; | |
| /* 32bit - The type of compression used. */ | |
| signed int enctype; | |
| /* 32bit - The size of the image in bytes. */ | |
| signed int size; | |
| /* 32bit - The horizontal resolution in pixels/metre. */ | |
| signed int hres; | |
| /* 32bit - The vertical resolution in pixels/metre. */ | |
| signed int vres; | |
| /* 32bit - The number of color indices used by the bitmap. */ | |
| signed int numcolors; | |
| /* 32bit - The number of color indices important for displaying the bitmap. */ | |
| signed int mincolors; | |
| } bmp_info_t; | |
| } | |