GL_SGIX_resample
https://www.khronos.org/registry/OpenGL/extensions/SGIX/SGIX_resample.txt
GL_SGIX_resample

	GL_PACK_RESAMPLE_SGIX 0x842E
	GL_UNPACK_RESAMPLE_SGIX 0x842F
	GL_RESAMPLE_DECIMATE_SGIX 0x8430
	GL_RESAMPLE_REPLICATE_SGIX 0x8433
	GL_RESAMPLE_ZERO_FILL_SGIX 0x8434