GL_SGIX_datapipe
http://www.opengl.org/registry/specs/SGIX/datapipe.txt
GL_SGIX_datapipe

	GL_GEOMETRY_BIT 0x1
	GL_IMAGE_BIT 0x2
	void glAddressSpace (GLenum space, GLbitfield mask)
	GLint glDataPipe (GLenum space)