| """Data-type definitions for EGL/GLES""" |
| import ctypes |
| pointer = ctypes.pointer |
|
|
| class _Opaque( ctypes.Structure ): |
| """An Opaque Structure reference (base class)""" |
| class _opaque_pointer( ctypes.POINTER( _Opaque ) ): |
| _type_ = _Opaque |
| @classmethod |
| def from_param( cls, value ): |
| return ctypes.cast( value, cls ) |
| @property |
| def address( self ): |
| return ctypes.addressof( self.contents ) |
| @property |
| def as_voidp( self ): |
| return ctypes.c_voidp( self.address ) |
| def opaque_pointer_cls( name ): |
| """Create an Opaque pointer class for the given name""" |
| typ = type( name, (_Opaque,), {} ) |
| p_typ = type( name+'_pointer', (_opaque_pointer,), {'_type_':typ}) |
| return p_typ |
|
|
