Edit File: bmp.h
/* $Id$ */ #ifdef __cplusplus extern "C" { #endif /* 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 ---------------------------------------------------------------------------- */ #ifndef BMP_H #define BMP_H 1 #define BMP_PALETTE_3 1 #define BMP_PALETTE_4 2 #define BMP_WINDOWS_V3 40 #define BMP_OS2_V1 12 #define BMP_OS2_V2 64 #define BMP_WINDOWS_V4 108 #define BMP_WINDOWS_V5 124 #define BMP_BI_RGB 0 #define BMP_BI_RLE8 1 #define BMP_BI_RLE4 2 #define BMP_BI_BITFIELDS 3 #define BMP_BI_JPEG 4 #define BMP_BI_PNG 5 #define BMP_RLE_COMMAND 0 #define BMP_RLE_ENDOFLINE 0 #define BMP_RLE_ENDOFBITMAP 1 #define BMP_RLE_DELTA 2 #define BMP_RLE_TYPE_RAW 0 #define BMP_RLE_TYPE_RLE 1 /* 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; #endif #ifdef __cplusplus } #endif
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