/* * This software is copyrighted as noted below. It may be freely copied, * modified, and redistributed, provided that the copyright notice is * preserved on all copies. * * There is no warranty or other guarantee of fitness for this software, * it is provided solely "as is". Bug reports or fixes may be sent * to the author, who may or may not act on them as he desires. * * You may not include this software in a program or other software product * without supplying the source, or without informing the end-user that the * source is available for no extra charge. * * If you modify this software, you should include a notice giving the * name of the person performing the modification, the date of modification, * and the reason for such modification. */ /* * lug.h - main LUG include. * * Author: Raul Rivero * Mathematics Dept. * University of Oviedo * Date: Fri Dec 27 1991 * Copyright (c) 1991, Raul Rivero * */ #ifndef MY_LUG #define MY_LUG /* * Load the LUG config header ( CHECK THAT FILE !!! ). */ #include "lugconf.h" /* * System includes. */ #include #include #include #include #include #ifndef MSDOS /*# include */ #endif #include #ifdef USE_STDLIB_H # include #else # ifdef VOID_STAR extern void *malloc(); # else extern char *malloc(); # endif /* VOID_STAR */ extern void free(); #endif /* USE_STDLIB_H */ #ifdef USE_STRINGS # include #else # include #endif /* USE_STRINGS */ #ifndef BSD #ifndef APPLE # define bzero(s, n) memset((s), 0, (n)) # define bcopy(f, t, c) memcpy((t), (f), (c)) #endif # define index(s, c) strchr((s), (c)) #endif /* BSD */ /* * New data types. */ #define byte unsigned char #define ushort unsigned short #define word unsigned int #define ulong unsigned long /* * Flags. */ /*#define FALSE 0 #define TRUE 1 */ #define CHROMABORDER 20 #define CHROMAMASK 20 #define LUGUSED 12345 /* * Supported file formats. */ #define GIF_FORMAT 00 #define HF_FORMAT 01 #define SUN_FORMAT 02 #define PBM_FORMAT 03 #define PGM_FORMAT 04 #define PPM_FORMAT 05 #define PCX_FORMAT 06 #define PIX_FORMAT 07 #define RAW_FORMAT 08 #define RGB_FORMAT 09 #define RLA_FORMAT 10 #define RLB_FORMAT 11 #define RLE_FORMAT 12 #define SGI_FORMAT 13 #define TGA_FORMAT 14 #define TIFF_FORMAT 15 /* * And the default file format is ... */ #define DEFAULT_FORMAT PIX_FORMAT /* * Conversion support defines. */ #define ONLY_RAW_PLANES -8 #define ONLY_FLOAT_PLANES -1 #define ALL_PLANES 0 #define ONLY_BINARY_PLANES 1 #define ONLY_8_PLANES 8 #define ONLY_24_PLANES 24 /* * Returned by exist_file. * * ... * FILE_IS_GZIP/COMPRESS --> the name exist but is compressed * FILE_WITH_GZIP/COMPRESS -> the file doesn't exist, but if you * add a .gz/.Z suffix then ... voila!. */ #define FILE_NO_EXIST 0 #define FILE_EXIST 1 #define FILE_IS_GZIP 2 #define FILE_IS_COMPRESS 3 #define FILE_WITH_GZIP 4 #define FILE_WITH_COMPRESS 5 /* * Temporary directory. */ #ifndef MSDOS # define TMPDIR "/usr/tmp" #else # define TMPDIR getenv("TEMP") #endif /* * Some define functions. */ #define MSB(a) ((byte) (((short)(a)) >> 8)) #define LSB(a) ((byte) (((short)(a)) & 0x00FF)) #define LUGABS(a) ((a) < 0 ? -(a) : (a)) #define FLOOR(a) ((a) > 0 ? (int)(a) : -(int)(-a)) #define CEILING(a) ((a) == (int)(a) ? (a) : (a) > 0 ? \ 1 + (int)(a) : -(1 + (int)(-a))) #define ROUND(a) ((a) > 0 ? (int)((a)+0.5) : -(int)(0.5-(a))) #define SQR(a) ((a) * (a)) #define LUGMAX(a,b) ((a) > (b) ? (a) : (b)) #define LUGMIN(a,b) ((a) > (b) ? (b) : (a)) /* #define SWAP(a,b) { a ^= b; b ^= a; a ^= b; } */ #define CORRECT(a) ((a) < 0 ? 0 : (a) > 255 ? 255 : (a) ) #define CLAMP(v,l,h) ((v) <(l) ? (l) : (v) > (h) ? (h) : v) #define RGB_to_BW(r,g,b) ((int) (30*(r) + 59*(g) + 11*(b)) / 100) /* * I/O define funcitions. */ #define Fread(p, s, n, f) if ( fread(p, s, n, f) != n ) error(3) #define Fwrite(p, s, n, f) if ( fwrite(p, s, n, f) != n ) error(4) #define VPRINTF if (LUGverbose) fprintf #define VFLUSH if (LUGverbose) fflush #define setverbose(f) LUGverbose = (f) #define getverbose() LUGverbose #define setcmdname(n) MY_NAME = (n) #define getcmdname() MY_NAME /* * If you define ERROR_CALLS then the library functions * seems system calls ( and return -1 or NULL ), but this * needs that you check this. */ #ifndef ERROR_CALLS # define error(code) Error(code) # define errornull(code) Error(code) #else # define error(code) { Error(code); return -1; } # define errornull(code) { Error(code); return NULL; } #endif /* ERROR_CALLS */ /* * Pointer to functions data type. */ typedef int (* ifunptr)(); /* * We'll use it when need a pointer to cmap. */ typedef byte color_map[3]; /* * I use a intermediate format ( a simple bitmap ) with * this format ... */ typedef struct { int xsize, ysize; /* sizes */ int depth; /* # of colors */ int colors; /* # of colors */ byte *r, *g, *b; /* components or bitmap (planes < 8) */ byte *cmap; /* cmap if planes < 8 */ int magic; /* used ? */ } bitmap_hdr; #endif /* MY_LUG */