share/binary.c

   1 /*
   2  * Copyright (C) 2003 Robert Kooima
   3  *
   4  * NEVERBALL is  free software; you can redistribute  it and/or modify
   5  * it under the  terms of the GNU General  Public License as published
   6  * by the Free  Software Foundation; either version 2  of the License,
   7  * or (at your option) any later version.
   8  *
   9  * This program is distributed in the hope that it will be useful, but
  10  * WITHOUT  ANY  WARRANTY;  without   even  the  implied  warranty  of
  11  * MERCHANTABILITY or  FITNESS FOR A PARTICULAR PURPOSE.   See the GNU
  12  * General Public License for more details.
  13  */
  14
  15 #include <stdio.h>
  16 #include <stdlib.h>
  17
  18 #include <SDL.h>
  19 #include <SDL_byteorder.h>
  20
  21 /*---------------------------------------------------------------------------*/
  22
  23 void put_float(FILE *fout, const float *f)
  24 {
  25     unsigned char *p = (unsigned char *) f;
  26
  27 #if SDL_BYTEORDER == SDL_BIG_ENDIAN
  28     fputc((int) p[3], fout);
  29     fputc((int) p[2], fout);
  30     fputc((int) p[1], fout);
  31     fputc((int) p[0], fout);
  32 #else
  33     fputc((int) p[0], fout);
  34     fputc((int) p[1], fout);
  35     fputc((int) p[2], fout);
  36     fputc((int) p[3], fout);
  37 #endif
  38 }
  39
  40 void put_int(FILE *fout, const int *i)
  41 {
  42     unsigned char *p = (unsigned char *) i;
  43
  44 #if SDL_BYTEORDER == SDL_BIG_ENDIAN
  45     fputc((int) p[3], fout);
  46     fputc((int) p[2], fout);
  47     fputc((int) p[1], fout);
  48     fputc((int) p[0], fout);
  49 #else
  50     fputc((int) p[0], fout);
  51     fputc((int) p[1], fout);
  52     fputc((int) p[2], fout);
  53     fputc((int) p[3], fout);
  54 #endif
  55 }
  56
  57 void put_short(FILE *fout, const short *s)
  58 {
  59     unsigned char *p = (unsigned char *) s;
  60
  61 #if SDL_BYTEORDER == SDL_BIG_ENDIAN
  62     fputc((int) p[1], fout);
  63     fputc((int) p[0], fout);
  64 #else
  65     fputc((int) p[0], fout);
  66     fputc((int) p[1], fout);
  67 #endif
  68 }
  69
  70 void put_array(FILE *fout, const float *v, size_t n)
  71 {
  72     size_t i;
  73
  74     for (i = 0; i < n; i++)
  75         put_float(fout, v + i);
  76 }
  77
  78 /*---------------------------------------------------------------------------*/
  79
  80 void get_float(FILE *fin, float *f)
  81 {
  82     unsigned char *p = (unsigned char *) f;
  83
  84 #if SDL_BYTEORDER == SDL_BIG_ENDIAN
  85     p[3] = (unsigned char) fgetc(fin);
  86     p[2] = (unsigned char) fgetc(fin);
  87     p[1] = (unsigned char) fgetc(fin);
  88     p[0] = (unsigned char) fgetc(fin);
  89 #else
  90     p[0] = (unsigned char) fgetc(fin);
  91     p[1] = (unsigned char) fgetc(fin);
  92     p[2] = (unsigned char) fgetc(fin);
  93     p[3] = (unsigned char) fgetc(fin);
  94 #endif
  95 }
  96
  97 void get_int(FILE *fin, int *i)
  98 {
  99     unsigned char *p = (unsigned char *) i;
 100
 101 #if SDL_BYTEORDER == SDL_BIG_ENDIAN
 102     p[3] = (unsigned char) fgetc(fin);
 103     p[2] = (unsigned char) fgetc(fin);
 104     p[1] = (unsigned char) fgetc(fin);
 105     p[0] = (unsigned char) fgetc(fin);
 106 #else
 107     p[0] = (unsigned char) fgetc(fin);
 108     p[1] = (unsigned char) fgetc(fin);
 109     p[2] = (unsigned char) fgetc(fin);
 110     p[3] = (unsigned char) fgetc(fin);
 111 #endif
 112 }
 113
 114 void get_short(FILE *fin, short *s)
 115 {
 116     unsigned char *p = (unsigned char *) s;
 117
 118 #if SDL_BYTEORDER == SDL_BIG_ENDIAN
 119     p[1] = (unsigned char) fgetc(fin);
 120     p[0] = (unsigned char) fgetc(fin);
 121 #else
 122     p[0] = (unsigned char) fgetc(fin);
 123     p[1] = (unsigned char) fgetc(fin);
 124 #endif
 125 }
 126
 127 void get_array(FILE *fin, float *v, size_t n)
 128 {
 129     size_t i;
 130
 131     for (i = 0; i < n; i++)
 132         get_float(fin, v + i);
 133 }
 134
 135 /*---------------------------------------------------------------------------*/