const image/jpeg.w2pw6

3 uses

	image/jpeg (current package)
		idct.go#L54: 	w2pw6 = w2 + w6
		idct.go#L114: 		x2 = x1 - w2pw6*x2
		idct.go#L169: 		y2 = (y1 - w2pw6*y2) >> 3