GetPixelRGBO     8502 coders/png.c                          GetPixelRGBO(q, transparent);
GetPixelRGBO     8524 coders/png.c                          GetPixelRGBO(q, transparent+i);
GetPixelRGBO     8534 coders/png.c                          GetPixelRGBO(q, semitransparent);
GetPixelRGBO     8550 coders/png.c                          GetPixelRGBO(q, semitransparent+i);