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  1. /*
  2.  * This file is part of the DXX-Rebirth project <https://www.dxx-rebirth.com/>.
  3.  * It is copyright by its individual contributors, as recorded in the
  4.  * project's Git history.  See COPYING.txt at the top level for license
  5.  * terms and a link to the Git history.
  6.  */
  7. /*
  8.  * Modified by Bradley Bell, 2002, 2003
  9.  * This program is licensed under the terms of the GPL, version 2 or later
  10.  */
  11.  
  12. #include <stdio.h>
  13. #include <string.h>
  14.  
  15. int
  16. main(int argc, char *argv[])
  17. {
  18.         FILE *file, *outfile;
  19.         char outfilename[64];
  20.         char ch;
  21.         int code;
  22.  
  23.         if (argc < 2) {
  24.                 printf("TEX2TXB V1.0 Copyright (c) Bryan Aamot, 1995\n"
  25.                            "Modified by Bradley Bell, 2002, 2003\n"
  26.                        "Text to TXB converter for Descent HOG files.\n"
  27.                        "Converts an ascii text file to *.txb descent hog file.\n"
  28.                        "Usage: TEX2TXB <text file name> <txb file name>\n"
  29.                        "Example: TEX2TXB briefing.tex briefing.txb\n");
  30.                 return 1;
  31.         }
  32.         file = fopen(argv[1], "rb");
  33.         if (!file) {
  34.                 printf("Can't open file (%s)\n", argv[1]);
  35.                 return 2;
  36.         }
  37.  
  38.         if (argc > 2)
  39.                 strcpy(outfilename, argv[2]);
  40.         else {
  41.                 strcpy(outfilename, argv[1]);
  42.                 strcpy(strrchr(outfilename, '.'), ".txb");
  43.         }
  44.  
  45.         outfile = fopen(outfilename, "wb");
  46.         if (!outfile) {
  47.                 printf("Can't open file (%s)\n", outfilename);
  48.                 fclose(file);
  49.                 return 2;
  50.         }
  51.  
  52.         for (;;) {
  53.                 ch = getc(file);
  54.                 if (feof(file)) break;
  55.                 if (ch!=0x0d) {
  56.                         if (ch==0x0a) {
  57.                                 fprintf(outfile, "\x0a");
  58.                         } else {
  59.                                 code = ( ( (ch &0xfC) >> 2) + ( (ch &0x03) << 6 ) ) ^ 0xe9;
  60.                                 fprintf(outfile, "%c", code);
  61.                         }
  62.                 }
  63.         }
  64.  
  65.         fclose(outfile);
  66.         fclose(file);
  67.  
  68.         return 0;
  69. }
  70.