GL_NV_gpu_program5
http://www.opengl.org/registry/specs/NV/gpu_program5.txt
GL_NV_gpu_program5
	GL_MAX_GEOMETRY_PROGRAM_INVOCATIONS_NV 0x8E5A
	GL_MIN_FRAGMENT_INTERPOLATION_OFFSET_NV 0x8E5B
	GL_MAX_FRAGMENT_INTERPOLATION_OFFSET_NV 0x8E5C
	GL_FRAGMENT_PROGRAM_INTERPOLATION_OFFSET_BITS_NV 0x8E5D
	GL_MIN_PROGRAM_TEXTURE_GATHER_OFFSET_NV 0x8E5E
	GL_MAX_PROGRAM_TEXTURE_GATHER_OFFSET_NV 0x8E5F