git.mutantstargoat.com Git - bootsplash/blob - rle/unrle.c

   1 #include <stdio.h>
   2
   3 int main(void)
   4 {
   5         int c, count, rawbytes = 0;
   6
   7         printf("P5\n320 200\n255\n");
   8
   9         while((c = getchar()) != -1) {
  10                 if(c & 0x80) {
  11                         count = c & 0x7f;
  12                         if((c = getchar()) == -1) {
  13                                 fprintf(stderr, "Unexpected EOF while decoding RLE data\n");
  14                                 return 1;
  15                         }
  16                         rawbytes += count;
  17                         while(count--) putchar(c);
  18                 } else {
  19                         rawbytes++;
  20                         putchar(c);
  21                 }
  22         }
  23
  24         fprintf(stderr, "decoded (raw) size: %d bytes\n", rawbytes);
  25         return 0;
  26 }