git.sesse.net Git - nageru/blob - shared/bin2h.cpp

   1 #include <stdio.h>
   2 #include <string>
   3
   4 using namespace std;
   5
   6 int main(int argc, char **argv)
   7 {
   8         if (argc != 4) {
   9                 fprintf(stderr, "Usage: bin2h INFILE BASENAME OUTFILE\n");
  10                 return 1;
  11         }
  12
  13         string basename = argv[2];
  14         for (char &ch : basename) {
  15                 if (!isalpha(ch) && !isdigit(ch)) {
  16                         ch = '_';
  17                 }
  18         }
  19
  20         FILE *infp = fopen(argv[1], "rb");
  21         if (infp == nullptr) {
  22                 perror(argv[1]);
  23                 exit(1);
  24         }
  25
  26         FILE *outfp = fopen(argv[3], "w");
  27         if (outfp == nullptr) {
  28                 perror(argv[3]);
  29                 exit(1);
  30         }
  31
  32         fprintf(outfp, "// Generated by bin2h.cpp from %s. Do not edit by hand.\n", argv[1]);
  33         fprintf(outfp, "#include <stddef.h>\n");
  34         fprintf(outfp, "unsigned char _binary_%s[] = {", basename.c_str());
  35
  36         size_t num_bytes = 0;
  37         while (!feof(infp)) {
  38                 if (num_bytes++ % 16 == 0) {
  39                         fprintf(outfp, "\n\t");
  40                 }
  41                 int ch = getc(infp);
  42                 if (ch == -1) {
  43                         break;
  44                 }
  45                 fprintf(outfp, "0x%02x, ", ch);
  46         }
  47         fprintf(outfp, "\n};\n");
  48         fprintf(outfp, "unsigned char *_binary_%s_data = _binary_%s;\n", basename.c_str(), basename.c_str());
  49         fprintf(outfp, "size_t _binary_%s_size = sizeof(_binary_%s);\n", basename.c_str(), basename.c_str());
  50         return 0;
  51 }