def glGetPointerv( constant ):
"""Retrieve a stored pointer constant"""
# do we have a cached version of the pointer?
# get the base pointer from the underlying operation
vp = ctypes.voidp()
simple.glGetPointerv( constant, ctypes.byref(vp) )
current = contextdata.getValue( constant )
if current is not None:
if arrays.ArrayDatatype.dataPointer( current ) == vp.value:
return current
# XXX should be coercing to the proper type and converting to an array
return vp
