const image/jpeg.r2

5 uses

	image/jpeg (current package)
		idct.go#L59: 	r2 = 181 // 256/sqrt(2)
		idct.go#L126: 		x2 = (r2*(x4+x5) + 128) >> 8
		idct.go#L127: 		x4 = (r2*(x4-x5) + 128) >> 8
		idct.go#L181: 		y2 = (r2*(y4+y5) + 128) >> 8
		idct.go#L182: 		y4 = (r2*(y4-y5) + 128) >> 8