1 | /**************************************************************************
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2 | *
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3 | * utils.h -- Functions which are common utilities for the image programs
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4 | * Copyright (C) 1994 Stuart Inglis
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5 | *
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6 | * This program is free software; you can redistribute it and/or modify
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7 | * it under the terms of the GNU General Public License as published by
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8 | * the Free Software Foundation; either version 2 of the License, or
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9 | * (at your option) any later version.
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10 | *
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11 | * This program is distributed in the hope that it will be useful,
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12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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14 | * GNU General Public License for more details.
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15 | *
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16 | * You should have received a copy of the GNU General Public License
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17 | * along with this program; if not, write to the Free Software
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18 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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19 | *
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20 | * $Id: utils.h 15660 2008-05-22 23:04:31Z mdewsnip $
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21 | *
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22 | **************************************************************************/
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23 |
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24 | #ifndef __UTILS_H
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25 | #define __UTILS_H
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26 |
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27 | #include "sysfuncs.h"
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28 |
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29 | extern int V;
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30 |
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31 | #define DEBUG
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32 |
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33 | #ifndef min
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34 | #define min(a,b) ((a)<(b) ? (a) : (b))
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35 | #endif
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36 | #ifndef max
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37 | #define max(a,b) ((a)>(b) ? (a) : (b))
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38 | #endif
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39 |
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40 | #define GEN_MAGIC(a,b,c,d) ((unsigned long)(((a)<<24) + ((b)<<16) + \
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41 | ((c)<<8) + (d)))
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42 |
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43 | /* --- MG magic file codes [TS:Aug/95] --- */
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44 | #define MAGIC_FELICS GEN_MAGIC('M','G','F','X')
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45 | #define MAGIC_BILEVEL GEN_MAGIC('M','G','B','I')
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46 | #define MAGIC_TIC GEN_MAGIC('M','G','T','C')
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47 | #define IS_MAGIC(a) ((((u_long)(a)) & 0xffff0000) == MAGIC_XXXX)
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48 | /* --------------------------------------- */
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49 |
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50 | #define MAGIC_P1 0x5031 /* P1 - pbm */
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51 | #define MAGIC_P2 0x5032 /* P2 - pgm */
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52 | #define MAGIC_P3 0x5033 /* P3 - ppm */
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53 | #define MAGIC_P4 0x5034 /* P4 - rawbits pbm */
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54 | #define MAGIC_P5 0x5035 /* P5 - rawbits pgm */
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55 | #define MAGIC_P6 0x5036 /* P6 - rawbits ppm */
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56 |
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57 | int isEOF (FILE * fp);
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58 | int getmagicno_byte (FILE * fp);
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59 | int getmagicno_short (FILE * fp);
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60 | int getmagicno_short_pop (FILE * fp);
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61 | int getmagicno_long (FILE * fp);
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62 |
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63 |
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64 |
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65 | void error_msg (char *prog, char *message, char *extra);
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66 | void warn (char *prog, char *message, char *extra);
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67 |
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68 | void readline (char str[], FILE * fp);
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69 |
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70 | void magic_write (FILE * fp, u_long magic_num);
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71 | void magic_check (FILE * fp, u_long magic_num);
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72 | u_long magic_read (FILE * fp);
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73 | /* kerry's code */
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74 |
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75 | int getint (FILE * fp);
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76 | unsigned int gethint (FILE * fp);
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77 | int isinteger (char s[]);
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78 |
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79 | #endif
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