from vulkan import ffi

def __convert_struct_field( s, fields ):
    for field,fieldtype in fields:
        if fieldtype.type.kind == 'primitive':
            yield (field,getattr( s, field ))
        else:
            yield (field, convert_to_python( getattr( s, field ) ))

def convert_to_python(s):
    if type(s) == int:
        return s
    ffitype=ffi.typeof(s)
    if ffitype.kind == 'struct':
        return dict(__convert_struct_field( s, ffitype.fields ) )
    elif ffitype.kind == 'array':
        if ffitype.item.kind == 'primitive':
            if ffitype.item.cname == 'char':
                return ffi.string(s)
            else:
                return [ s[i] for i in range(ffitype.length) ]
        else:
            return [ convert_to_python(s[i]) for i in range(ffitype.length) ]
    elif ffitype.kind == 'primitive':
        return int(s)