add chunked reading; example with cat.ce

source/cell.c

@@ -819,6 +819,8 @@ int main(int argc, char **argv)
     printf("CRITICAL ERROR: %s\n", SDL_GetError());
     exit(1);
   }
+  
+  printf("main thread is %d\n", SDL_GetThreadID(NULL));
 
 #ifdef TRACY_ENABLE
   tracy_profiling_enabled = profile_enabled;