#include <stddef.h>
#include <stdio.h>
#include <stdlib.h>
#include "img_png.h"

uint8_t* img_png_decode(FILE *fp) {
  unsigned char buffer[8];
  size_t bufsize = sizeof(buffer) / sizeof((buffer)[0]);
  
  size_t ret = fread(buffer, sizeof(*buffer), bufsize, fp);

  if(ret != bufsize) {
    fprintf(stderr, "fread() failed. Expected %zu bytes, got %zu\n", bufsize, ret);
    return NULL;
  }

  printf("PNG Magic: %#04x%02x%02x%02x%02x%02x%02x%02x\n", buffer[0], buffer[1], buffer[2],
         buffer[3], buffer[4], buffer[5], buffer[6], buffer[7]);

  return NULL;
}