147 #define avg4(a, b, c, d) (((a) + (b) + (c) + (d) + 2) >> 2)  macro
281         s    += abs(pix1[0]  - avg4(pix2[0],  pix2[1],  pix3[0],  pix3[1]));  in pix_abs16_xy2_c()
282         s    += abs(pix1[1]  - avg4(pix2[1],  pix2[2],  pix3[1],  pix3[2]));  in pix_abs16_xy2_c()
283         s    += abs(pix1[2]  - avg4(pix2[2],  pix2[3],  pix3[2],  pix3[3]));  in pix_abs16_xy2_c()
284         s    += abs(pix1[3]  - avg4(pix2[3],  pix2[4],  pix3[3],  pix3[4]));  in pix_abs16_xy2_c()
285         s    += abs(pix1[4]  - avg4(pix2[4],  pix2[5],  pix3[4],  pix3[5]));  in pix_abs16_xy2_c()
286         s    += abs(pix1[5]  - avg4(pix2[5],  pix2[6],  pix3[5],  pix3[6]));  in pix_abs16_xy2_c()
287         s    += abs(pix1[6]  - avg4(pix2[6],  pix2[7],  pix3[6],  pix3[7]));  in pix_abs16_xy2_c()
288         s    += abs(pix1[7]  - avg4(pix2[7],  pix2[8],  pix3[7],  pix3[8]));  in pix_abs16_xy2_c()
289         s    += abs(pix1[8]  - avg4(pix2[8],  pix2[9],  pix3[8],  pix3[9]));  in pix_abs16_xy2_c()
290         s    += abs(pix1[9]  - avg4(pix2[9],  pix2[10], pix3[9],  pix3[10]));  in pix_abs16_xy2_c()
291         s    += abs(pix1[10] - avg4(pix2[10], pix2[11], pix3[10], pix3[11]));  in pix_abs16_xy2_c()
292         s    += abs(pix1[11] - avg4(pix2[11], pix2[12], pix3[11], pix3[12]));  in pix_abs16_xy2_c()
293         s    += abs(pix1[12] - avg4(pix2[12], pix2[13], pix3[12], pix3[13]));  in pix_abs16_xy2_c()
294         s    += abs(pix1[13] - avg4(pix2[13], pix2[14], pix3[13], pix3[14]));  in pix_abs16_xy2_c()
295         s    += abs(pix1[14] - avg4(pix2[14], pix2[15], pix3[14], pix3[15]));  in pix_abs16_xy2_c()
296         s    += abs(pix1[15] - avg4(pix2[15], pix2[16], pix3[15], pix3[16]));  in pix_abs16_xy2_c()
404         s    += abs(pix1[0] - avg4(pix2[0], pix2[1], pix3[0], pix3[1]));  in pix_abs8_xy2_c()
405         s    += abs(pix1[1] - avg4(pix2[1], pix2[2], pix3[1], pix3[2]));  in pix_abs8_xy2_c()
406         s    += abs(pix1[2] - avg4(pix2[2], pix2[3], pix3[2], pix3[3]));  in pix_abs8_xy2_c()
407         s    += abs(pix1[3] - avg4(pix2[3], pix2[4], pix3[3], pix3[4]));  in pix_abs8_xy2_c()
408         s    += abs(pix1[4] - avg4(pix2[4], pix2[5], pix3[4], pix3[5]));  in pix_abs8_xy2_c()
409         s    += abs(pix1[5] - avg4(pix2[5], pix2[6], pix3[5], pix3[6]));  in pix_abs8_xy2_c()
410         s    += abs(pix1[6] - avg4(pix2[6], pix2[7], pix3[6], pix3[7]));  in pix_abs8_xy2_c()
411         s    += abs(pix1[7] - avg4(pix2[7], pix2[8], pix3[7], pix3[8]));  in pix_abs8_xy2_c()