GL_OML_resample
http://oss.sgi.com/projects/ogl-sample/registry/OML/resample.txt
	GL_PACK_RESAMPLE_OML 0x8984
	GL_UNPACK_RESAMPLE_OML 0x8985
	GL_RESAMPLE_REPLICATE_OML 0x8986
	GL_RESAMPLE_ZERO_FILL_OML 0x8987
	GL_RESAMPLE_AVERAGE_OML 0x8988
	GL_RESAMPLE_DECIMATE_OML 0x8989