GD::Image
gdnewFromGdData(packname="GD::Image", imageData)
    char *  packname
    SV *    imageData
    PROTOTYPE: $$
        PREINIT:
          char*    data;
          STRLEN   len;
    CODE:
    data = SvPV(imageData,len);
    RETVAL = (GD__Image) gdImageCreateFromGdPtr(len,(void*) data);
//        safefree(data); /// HERE!
    OUTPUT:
    RETVAL