[x265] [PATCH] replace sad_x4_24 vector class function with intrinsic

dnyaneshwar at multicorewareinc.com dnyaneshwar at multicorewareinc.com
Thu Oct 3 16:30:38 CEST 2013


# HG changeset patch
# User Dnyaneshwar
# Date 1380810601 -19800
#      Thu Oct 03 20:00:01 2013 +0530
# Node ID bbf14cc8ed64d2816ac87da9dd5cef1b00f4954d
# Parent  f124c22522cbb4449fa523c212cbe8a8dafbc496
replace sad_x4_24 vector class function with intrinsic.

diff -r f124c22522cb -r bbf14cc8ed64 source/common/vec/pixel8.inc
--- a/source/common/vec/pixel8.inc	Thu Oct 03 19:55:51 2013 +0530
+++ b/source/common/vec/pixel8.inc	Thu Oct 03 20:00:01 2013 +0530
@@ -12119,114 +12119,1399 @@
     }
 }
 
+template<int ly>
+void sad_x4_24(pixel *fenc, pixel *fref1, pixel *fref2, pixel *fref3, pixel *fref4, intptr_t frefstride, int *res)
+{
+    assert((ly % 4) == 0);
+
+    if (ly == 4)
+    {
+        __m128i T00, T01, T02, T03, T04, T05;
+        __m128i T10, T11, T12, T13, T14, T15;
+        __m128i T20, T21, T22, T23;
+        __m128i T30, T31;
+
+        __m128i sum0, sum1;
+
+        T00 = _mm_load_si128((__m128i*)(fenc));
+        T01 = _mm_load_si128((__m128i*)(fenc + FENC_STRIDE));
+        T02 = _mm_load_si128((__m128i*)(fenc + (2) * FENC_STRIDE));
+        T03 = _mm_load_si128((__m128i*)(fenc + (3) * FENC_STRIDE));
+
+        T10 = _mm_loadl_epi64((__m128i*)(fenc + 16));
+        T11 = _mm_loadl_epi64((__m128i*)(fenc + (FENC_STRIDE + 16)));
+        T04 = _mm_unpacklo_epi64(T10, T11);
+
+        T12 = _mm_loadl_epi64((__m128i*)(fenc + ((2) * FENC_STRIDE) + 16));
+        T13 = _mm_loadl_epi64((__m128i*)(fenc + ((3) * FENC_STRIDE) + 16));
+        T05 = _mm_unpacklo_epi64(T12, T13);
+
+        T10 = _mm_loadu_si128((__m128i*)(fref1));
+        T11 = _mm_loadu_si128((__m128i*)(fref1 + frefstride));
+        T12 = _mm_loadu_si128((__m128i*)(fref1 + (2) * frefstride));
+        T13 = _mm_loadu_si128((__m128i*)(fref1 + (3) * frefstride));
+
+        T20 = _mm_loadl_epi64((__m128i*)(fref1 + 16));
+        T21 = _mm_loadl_epi64((__m128i*)(fref1 + (frefstride + 16)));
+        T14 = _mm_unpacklo_epi64(T20, T21);
+
+        T22 = _mm_loadl_epi64((__m128i*)(fref1 + ((2) * frefstride) + 16));
+        T23 = _mm_loadl_epi64((__m128i*)(fref1 + ((3) * frefstride) + 16));
+        T15 = _mm_unpacklo_epi64(T22, T23);
+
+        T20 = _mm_sad_epu8(T00, T10);
+        T21 = _mm_sad_epu8(T01, T11);
+        T22 = _mm_sad_epu8(T02, T12);
+        T23 = _mm_sad_epu8(T03, T13);
+        T30 = _mm_sad_epu8(T04, T14);
+        T31 = _mm_sad_epu8(T05, T15);
+
+        T20 = _mm_add_epi16(T20, T21);
+        T22 = _mm_add_epi16(T22, T23);
+        sum0 = _mm_add_epi16(T20, T22);
+        sum1 = _mm_add_epi16(T30, T31);
+        sum0 = _mm_add_epi16(sum0, sum1);
+
+        sum1 = _mm_shuffle_epi32(sum0, 2);
+        sum0 = _mm_add_epi32(sum0, sum1);
+        res[0] = _mm_cvtsi128_si32(sum0);
+
+        T10 = _mm_loadu_si128((__m128i*)(fref2));
+        T11 = _mm_loadu_si128((__m128i*)(fref2 + frefstride));
+        T12 = _mm_loadu_si128((__m128i*)(fref2 + (2) * frefstride));
+        T13 = _mm_loadu_si128((__m128i*)(fref2 + (3) * frefstride));
+
+        T20 = _mm_loadl_epi64((__m128i*)(fref2 + 16));
+        T21 = _mm_loadl_epi64((__m128i*)(fref2 + (frefstride + 16)));
+        T14 = _mm_unpacklo_epi64(T20, T21);
+
+        T22 = _mm_loadl_epi64((__m128i*)(fref2 + ((2) * frefstride) + 16));
+        T23 = _mm_loadl_epi64((__m128i*)(fref2 + ((3) * frefstride) + 16));
+        T15 = _mm_unpacklo_epi64(T22, T23);
+
+        T20 = _mm_sad_epu8(T00, T10);
+        T21 = _mm_sad_epu8(T01, T11);
+        T22 = _mm_sad_epu8(T02, T12);
+        T23 = _mm_sad_epu8(T03, T13);
+        T30 = _mm_sad_epu8(T04, T14);
+        T31 = _mm_sad_epu8(T05, T15);
+
+        T20 = _mm_add_epi16(T20, T21);
+        T22 = _mm_add_epi16(T22, T23);
+        sum0 = _mm_add_epi16(T20, T22);
+        sum1 = _mm_add_epi16(T30, T31);
+        sum0 = _mm_add_epi16(sum0, sum1);
+
+        sum1 = _mm_shuffle_epi32(sum0, 2);
+        sum0 = _mm_add_epi32(sum0, sum1);
+        res[1] = _mm_cvtsi128_si32(sum0);
+
+        T10 = _mm_loadu_si128((__m128i*)(fref3));
+        T11 = _mm_loadu_si128((__m128i*)(fref3 + frefstride));
+        T12 = _mm_loadu_si128((__m128i*)(fref3 + (2) * frefstride));
+        T13 = _mm_loadu_si128((__m128i*)(fref3 + (3) * frefstride));
+
+        T20 = _mm_loadl_epi64((__m128i*)(fref3 + 16));
+        T21 = _mm_loadl_epi64((__m128i*)(fref3 + (frefstride + 16)));
+        T14 = _mm_unpacklo_epi64(T20, T21);
+
+        T22 = _mm_loadl_epi64((__m128i*)(fref3 + ((2) * frefstride) + 16));
+        T23 = _mm_loadl_epi64((__m128i*)(fref3 + ((3) * frefstride) + 16));
+        T15 = _mm_unpacklo_epi64(T22, T23);
+
+        T20 = _mm_sad_epu8(T00, T10);
+        T21 = _mm_sad_epu8(T01, T11);
+        T22 = _mm_sad_epu8(T02, T12);
+        T23 = _mm_sad_epu8(T03, T13);
+        T30 = _mm_sad_epu8(T04, T14);
+        T31 = _mm_sad_epu8(T05, T15);
+
+        T20 = _mm_add_epi16(T20, T21);
+        T22 = _mm_add_epi16(T22, T23);
+        sum0 = _mm_add_epi16(T20, T22);
+        sum1 = _mm_add_epi16(T30, T31);
+        sum0 = _mm_add_epi16(sum0, sum1);
+
+        sum1 = _mm_shuffle_epi32(sum0, 2);
+        sum0 = _mm_add_epi32(sum0, sum1);
+        res[2] = _mm_cvtsi128_si32(sum0);
+
+        T10 = _mm_loadu_si128((__m128i*)(fref4));
+        T11 = _mm_loadu_si128((__m128i*)(fref4 + frefstride));
+        T12 = _mm_loadu_si128((__m128i*)(fref4 + (2) * frefstride));
+        T13 = _mm_loadu_si128((__m128i*)(fref4 + (3) * frefstride));
+
+        T20 = _mm_loadl_epi64((__m128i*)(fref4 + 16));
+        T21 = _mm_loadl_epi64((__m128i*)(fref4 + (frefstride + 16)));
+        T14 = _mm_unpacklo_epi64(T20, T21);
+
+        T22 = _mm_loadl_epi64((__m128i*)(fref4 + ((2) * frefstride) + 16));
+        T23 = _mm_loadl_epi64((__m128i*)(fref4 + ((3) * frefstride) + 16));
+        T15 = _mm_unpacklo_epi64(T22, T23);
+
+        T20 = _mm_sad_epu8(T00, T10);
+        T21 = _mm_sad_epu8(T01, T11);
+        T22 = _mm_sad_epu8(T02, T12);
+        T23 = _mm_sad_epu8(T03, T13);
+        T30 = _mm_sad_epu8(T04, T14);
+        T31 = _mm_sad_epu8(T05, T15);
+
+        T20 = _mm_add_epi16(T20, T21);
+        T22 = _mm_add_epi16(T22, T23);
+        sum0 = _mm_add_epi16(T20, T22);
+        sum1 = _mm_add_epi16(T30, T31);
+        sum0 = _mm_add_epi16(sum0, sum1);
+
+        sum1 = _mm_shuffle_epi32(sum0, 2);
+        sum0 = _mm_add_epi32(sum0, sum1);
+        res[3] = _mm_cvtsi128_si32(sum0);
+    }
+    else if (ly == 8)
+    {
+        __m128i T00, T01, T02, T03, T04, T05;
+        __m128i T10, T11, T12, T13, T14, T15;
+        __m128i T20, T21, T22, T23;
+        __m128i T30, T31;
+
+        __m128i sum0, sum1;
+
+        T00 = _mm_load_si128((__m128i*)(fenc));
+        T01 = _mm_load_si128((__m128i*)(fenc + FENC_STRIDE));
+        T02 = _mm_load_si128((__m128i*)(fenc + (2) * FENC_STRIDE));
+        T03 = _mm_load_si128((__m128i*)(fenc + (3) * FENC_STRIDE));
+
+        T10 = _mm_loadl_epi64((__m128i*)(fenc + 16));
+        T11 = _mm_loadl_epi64((__m128i*)(fenc + (FENC_STRIDE + 16)));
+        T04 = _mm_unpacklo_epi64(T10, T11);
+
+        T12 = _mm_loadl_epi64((__m128i*)(fenc + ((2) * FENC_STRIDE) + 16));
+        T13 = _mm_loadl_epi64((__m128i*)(fenc + ((3) * FENC_STRIDE) + 16));
+        T05 = _mm_unpacklo_epi64(T12, T13);
+
+        T10 = _mm_loadu_si128((__m128i*)(fref1));
+        T11 = _mm_loadu_si128((__m128i*)(fref1 + frefstride));
+        T12 = _mm_loadu_si128((__m128i*)(fref1 + (2) * frefstride));
+        T13 = _mm_loadu_si128((__m128i*)(fref1 + (3) * frefstride));
+
+        T20 = _mm_loadl_epi64((__m128i*)(fref1 + 16));
+        T21 = _mm_loadl_epi64((__m128i*)(fref1 + (frefstride + 16)));
+        T14 = _mm_unpacklo_epi64(T20, T21);
+
+        T22 = _mm_loadl_epi64((__m128i*)(fref1 + ((2) * frefstride) + 16));
+        T23 = _mm_loadl_epi64((__m128i*)(fref1 + ((3) * frefstride) + 16));
+        T15 = _mm_unpacklo_epi64(T22, T23);
+
+        T20 = _mm_sad_epu8(T00, T10);
+        T21 = _mm_sad_epu8(T01, T11);
+        T22 = _mm_sad_epu8(T02, T12);
+        T23 = _mm_sad_epu8(T03, T13);
+        T30 = _mm_sad_epu8(T04, T14);
+        T31 = _mm_sad_epu8(T05, T15);
+
+        T20 = _mm_add_epi16(T20, T21);
+        T22 = _mm_add_epi16(T22, T23);
+        sum0 = _mm_add_epi16(T20, T22);
+        sum1 = _mm_add_epi16(T30, T31);
+        sum0 = _mm_add_epi16(sum0, sum1);
+
+        sum1 = _mm_shuffle_epi32(sum0, 2);
+        sum0 = _mm_add_epi32(sum0, sum1);
+        res[0] = _mm_cvtsi128_si32(sum0);
+
+        T10 = _mm_loadu_si128((__m128i*)(fref2));
+        T11 = _mm_loadu_si128((__m128i*)(fref2 + frefstride));
+        T12 = _mm_loadu_si128((__m128i*)(fref2 + (2) * frefstride));
+        T13 = _mm_loadu_si128((__m128i*)(fref2 + (3) * frefstride));
+
+        T20 = _mm_loadl_epi64((__m128i*)(fref2 + 16));
+        T21 = _mm_loadl_epi64((__m128i*)(fref2 + (frefstride + 16)));
+        T14 = _mm_unpacklo_epi64(T20, T21);
+
+        T22 = _mm_loadl_epi64((__m128i*)(fref2 + ((2) * frefstride) + 16));
+        T23 = _mm_loadl_epi64((__m128i*)(fref2 + ((3) * frefstride) + 16));
+        T15 = _mm_unpacklo_epi64(T22, T23);
+
+        T20 = _mm_sad_epu8(T00, T10);
+        T21 = _mm_sad_epu8(T01, T11);
+        T22 = _mm_sad_epu8(T02, T12);
+        T23 = _mm_sad_epu8(T03, T13);
+        T30 = _mm_sad_epu8(T04, T14);
+        T31 = _mm_sad_epu8(T05, T15);
+
+        T20 = _mm_add_epi16(T20, T21);
+        T22 = _mm_add_epi16(T22, T23);
+        sum0 = _mm_add_epi16(T20, T22);
+        sum1 = _mm_add_epi16(T30, T31);
+        sum0 = _mm_add_epi16(sum0, sum1);
+
+        sum1 = _mm_shuffle_epi32(sum0, 2);
+        sum0 = _mm_add_epi32(sum0, sum1);
+        res[1] = _mm_cvtsi128_si32(sum0);
+
+        T10 = _mm_loadu_si128((__m128i*)(fref3));
+        T11 = _mm_loadu_si128((__m128i*)(fref3 + frefstride));
+        T12 = _mm_loadu_si128((__m128i*)(fref3 + (2) * frefstride));
+        T13 = _mm_loadu_si128((__m128i*)(fref3 + (3) * frefstride));
+
+        T20 = _mm_loadl_epi64((__m128i*)(fref3 + 16));
+        T21 = _mm_loadl_epi64((__m128i*)(fref3 + (frefstride + 16)));
+        T14 = _mm_unpacklo_epi64(T20, T21);
+
+        T22 = _mm_loadl_epi64((__m128i*)(fref3 + ((2) * frefstride) + 16));
+        T23 = _mm_loadl_epi64((__m128i*)(fref3 + ((3) * frefstride) + 16));
+        T15 = _mm_unpacklo_epi64(T22, T23);
+
+        T20 = _mm_sad_epu8(T00, T10);
+        T21 = _mm_sad_epu8(T01, T11);
+        T22 = _mm_sad_epu8(T02, T12);
+        T23 = _mm_sad_epu8(T03, T13);
+        T30 = _mm_sad_epu8(T04, T14);
+        T31 = _mm_sad_epu8(T05, T15);
+
+        T20 = _mm_add_epi16(T20, T21);
+        T22 = _mm_add_epi16(T22, T23);
+        sum0 = _mm_add_epi16(T20, T22);
+        sum1 = _mm_add_epi16(T30, T31);
+        sum0 = _mm_add_epi16(sum0, sum1);
+
+        sum1 = _mm_shuffle_epi32(sum0, 2);
+        sum0 = _mm_add_epi32(sum0, sum1);
+        res[2] = _mm_cvtsi128_si32(sum0);
+
+        T10 = _mm_loadu_si128((__m128i*)(fref4));
+        T11 = _mm_loadu_si128((__m128i*)(fref4 + frefstride));
+        T12 = _mm_loadu_si128((__m128i*)(fref4 + (2) * frefstride));
+        T13 = _mm_loadu_si128((__m128i*)(fref4 + (3) * frefstride));
+
+        T20 = _mm_loadl_epi64((__m128i*)(fref4 + 16));
+        T21 = _mm_loadl_epi64((__m128i*)(fref4 + (frefstride + 16)));
+        T14 = _mm_unpacklo_epi64(T20, T21);
+
+        T22 = _mm_loadl_epi64((__m128i*)(fref4 + ((2) * frefstride) + 16));
+        T23 = _mm_loadl_epi64((__m128i*)(fref4 + ((3) * frefstride) + 16));
+        T15 = _mm_unpacklo_epi64(T22, T23);
+
+        T20 = _mm_sad_epu8(T00, T10);
+        T21 = _mm_sad_epu8(T01, T11);
+        T22 = _mm_sad_epu8(T02, T12);
+        T23 = _mm_sad_epu8(T03, T13);
+        T30 = _mm_sad_epu8(T04, T14);
+        T31 = _mm_sad_epu8(T05, T15);
+
+        T20 = _mm_add_epi16(T20, T21);
+        T22 = _mm_add_epi16(T22, T23);
+        sum0 = _mm_add_epi16(T20, T22);
+        sum1 = _mm_add_epi16(T30, T31);
+        sum0 = _mm_add_epi16(sum0, sum1);
+
+        sum1 = _mm_shuffle_epi32(sum0, 2);
+        sum0 = _mm_add_epi32(sum0, sum1);
+        res[3] = _mm_cvtsi128_si32(sum0);
+
+        T00 = _mm_load_si128((__m128i*)(fenc + (4) * FENC_STRIDE));
+        T01 = _mm_load_si128((__m128i*)(fenc + (5) * FENC_STRIDE));
+        T02 = _mm_load_si128((__m128i*)(fenc + (6) * FENC_STRIDE));
+        T03 = _mm_load_si128((__m128i*)(fenc + (7) * FENC_STRIDE));
+
+        T10 = _mm_loadl_epi64((__m128i*)(fenc + (4) * FENC_STRIDE + 16));
+        T11 = _mm_loadl_epi64((__m128i*)(fenc + (5) * FENC_STRIDE + 16));
+        T04 = _mm_unpacklo_epi64(T10, T11);
+
+        T12 = _mm_loadl_epi64((__m128i*)(fenc + (6) * FENC_STRIDE + 16));
+        T13 = _mm_loadl_epi64((__m128i*)(fenc + (7) * FENC_STRIDE + 16));
+        T05 = _mm_unpacklo_epi64(T12, T13);
+
+        T10 = _mm_loadu_si128((__m128i*)(fref1 + (4) * frefstride));
+        T11 = _mm_loadu_si128((__m128i*)(fref1 + (5) * frefstride));
+        T12 = _mm_loadu_si128((__m128i*)(fref1 + (6) * frefstride));
+        T13 = _mm_loadu_si128((__m128i*)(fref1 + (7) * frefstride));
+
+        T20 = _mm_loadl_epi64((__m128i*)(fref1 + (4) * frefstride + 16));
+        T21 = _mm_loadl_epi64((__m128i*)(fref1 + (5) * frefstride + 16));
+        T14 = _mm_unpacklo_epi64(T20, T21);
+
+        T22 = _mm_loadl_epi64((__m128i*)(fref1 + (6) * frefstride + 16));
+        T23 = _mm_loadl_epi64((__m128i*)(fref1 + (7) * frefstride + 16));
+        T15 = _mm_unpacklo_epi64(T22, T23);
+
+        T20 = _mm_sad_epu8(T00, T10);
+        T21 = _mm_sad_epu8(T01, T11);
+        T22 = _mm_sad_epu8(T02, T12);
+        T23 = _mm_sad_epu8(T03, T13);
+        T30 = _mm_sad_epu8(T04, T14);
+        T31 = _mm_sad_epu8(T05, T15);
+
+        T20 = _mm_add_epi16(T20, T21);
+        T22 = _mm_add_epi16(T22, T23);
+        sum0 = _mm_add_epi16(T20, T22);
+        sum1 = _mm_add_epi16(T30, T31);
+        sum0 = _mm_add_epi16(sum0, sum1);
+
+        sum1 = _mm_shuffle_epi32(sum0, 2);
+        sum0 = _mm_add_epi32(sum0, sum1);
+        res[0] += _mm_cvtsi128_si32(sum0);
+
+        T10 = _mm_loadu_si128((__m128i*)(fref2 + (4) * frefstride));
+        T11 = _mm_loadu_si128((__m128i*)(fref2 + (5) * frefstride));
+        T12 = _mm_loadu_si128((__m128i*)(fref2 + (6) * frefstride));
+        T13 = _mm_loadu_si128((__m128i*)(fref2 + (7) * frefstride));
+
+        T20 = _mm_loadl_epi64((__m128i*)(fref2 + (4) * frefstride + 16));
+        T21 = _mm_loadl_epi64((__m128i*)(fref2 + (5) * frefstride + 16));
+        T14 = _mm_unpacklo_epi64(T20, T21);
+
+        T22 = _mm_loadl_epi64((__m128i*)(fref2 + (6) * frefstride + 16));
+        T23 = _mm_loadl_epi64((__m128i*)(fref2 + (7) * frefstride + 16));
+        T15 = _mm_unpacklo_epi64(T22, T23);
+
+        T20 = _mm_sad_epu8(T00, T10);
+        T21 = _mm_sad_epu8(T01, T11);
+        T22 = _mm_sad_epu8(T02, T12);
+        T23 = _mm_sad_epu8(T03, T13);
+        T30 = _mm_sad_epu8(T04, T14);
+        T31 = _mm_sad_epu8(T05, T15);
+
+        T20 = _mm_add_epi16(T20, T21);
+        T22 = _mm_add_epi16(T22, T23);
+        sum0 = _mm_add_epi16(T20, T22);
+        sum1 = _mm_add_epi16(T30, T31);
+        sum0 = _mm_add_epi16(sum0, sum1);
+
+        sum1 = _mm_shuffle_epi32(sum0, 2);
+        sum0 = _mm_add_epi32(sum0, sum1);
+        res[1] += _mm_cvtsi128_si32(sum0);
+
+        T10 = _mm_loadu_si128((__m128i*)(fref3 + (4) * frefstride));
+        T11 = _mm_loadu_si128((__m128i*)(fref3 + (5) * frefstride));
+        T12 = _mm_loadu_si128((__m128i*)(fref3 + (6) * frefstride));
+        T13 = _mm_loadu_si128((__m128i*)(fref3 + (7) * frefstride));
+
+        T20 = _mm_loadl_epi64((__m128i*)(fref3 + (4) * frefstride + 16));
+        T21 = _mm_loadl_epi64((__m128i*)(fref3 + (5) * frefstride + 16));
+        T14 = _mm_unpacklo_epi64(T20, T21);
+
+        T22 = _mm_loadl_epi64((__m128i*)(fref3 + (6) * frefstride + 16));
+        T23 = _mm_loadl_epi64((__m128i*)(fref3 + (7) * frefstride + 16));
+        T15 = _mm_unpacklo_epi64(T22, T23);
+
+        T20 = _mm_sad_epu8(T00, T10);
+        T21 = _mm_sad_epu8(T01, T11);
+        T22 = _mm_sad_epu8(T02, T12);
+        T23 = _mm_sad_epu8(T03, T13);
+        T30 = _mm_sad_epu8(T04, T14);
+        T31 = _mm_sad_epu8(T05, T15);
+
+        T20 = _mm_add_epi16(T20, T21);
+        T22 = _mm_add_epi16(T22, T23);
+        sum0 = _mm_add_epi16(T20, T22);
+        sum1 = _mm_add_epi16(T30, T31);
+        sum0 = _mm_add_epi16(sum0, sum1);
+
+        sum1 = _mm_shuffle_epi32(sum0, 2);
+        sum0 = _mm_add_epi32(sum0, sum1);
+        res[2] += _mm_cvtsi128_si32(sum0);
+
+        T10 = _mm_loadu_si128((__m128i*)(fref4 + (4) * frefstride));
+        T11 = _mm_loadu_si128((__m128i*)(fref4 + (5) * frefstride));
+        T12 = _mm_loadu_si128((__m128i*)(fref4 + (6) * frefstride));
+        T13 = _mm_loadu_si128((__m128i*)(fref4 + (7) * frefstride));
+
+        T20 = _mm_loadl_epi64((__m128i*)(fref4 + (4) * frefstride + 16));
+        T21 = _mm_loadl_epi64((__m128i*)(fref4 + (5) * frefstride + 16));
+        T14 = _mm_unpacklo_epi64(T20, T21);
+
+        T22 = _mm_loadl_epi64((__m128i*)(fref4 + (6) * frefstride + 16));
+        T23 = _mm_loadl_epi64((__m128i*)(fref4 + (7) * frefstride + 16));
+        T15 = _mm_unpacklo_epi64(T22, T23);
+
+        T20 = _mm_sad_epu8(T00, T10);
+        T21 = _mm_sad_epu8(T01, T11);
+        T22 = _mm_sad_epu8(T02, T12);
+        T23 = _mm_sad_epu8(T03, T13);
+        T30 = _mm_sad_epu8(T04, T14);
+        T31 = _mm_sad_epu8(T05, T15);
+
+        T20 = _mm_add_epi16(T20, T21);
+        T22 = _mm_add_epi16(T22, T23);
+        sum0 = _mm_add_epi16(T20, T22);
+        sum1 = _mm_add_epi16(T30, T31);
+        sum0 = _mm_add_epi16(sum0, sum1);
+
+        sum1 = _mm_shuffle_epi32(sum0, 2);
+        sum0 = _mm_add_epi32(sum0, sum1);
+        res[3] += _mm_cvtsi128_si32(sum0);
+    }
+    else if (ly == 16)
+    {
+        __m128i T00, T01, T02, T03, T04, T05;
+        __m128i T10, T11, T12, T13, T14, T15;
+        __m128i T20, T21, T22, T23;
+        __m128i T30, T31;
+
+        __m128i sum0, sum1;
+
+        T00 = _mm_load_si128((__m128i*)(fenc));
+        T01 = _mm_load_si128((__m128i*)(fenc + FENC_STRIDE));
+        T02 = _mm_load_si128((__m128i*)(fenc + (2) * FENC_STRIDE));
+        T03 = _mm_load_si128((__m128i*)(fenc + (3) * FENC_STRIDE));
+
+        T10 = _mm_loadl_epi64((__m128i*)(fenc + 16));
+        T11 = _mm_loadl_epi64((__m128i*)(fenc + (FENC_STRIDE + 16)));
+        T04 = _mm_unpacklo_epi64(T10, T11);
+
+        T12 = _mm_loadl_epi64((__m128i*)(fenc + ((2) * FENC_STRIDE) + 16));
+        T13 = _mm_loadl_epi64((__m128i*)(fenc + ((3) * FENC_STRIDE) + 16));
+        T05 = _mm_unpacklo_epi64(T12, T13);
+
+        T10 = _mm_loadu_si128((__m128i*)(fref1));
+        T11 = _mm_loadu_si128((__m128i*)(fref1 + frefstride));
+        T12 = _mm_loadu_si128((__m128i*)(fref1 + (2) * frefstride));
+        T13 = _mm_loadu_si128((__m128i*)(fref1 + (3) * frefstride));
+
+        T20 = _mm_loadl_epi64((__m128i*)(fref1 + 16));
+        T21 = _mm_loadl_epi64((__m128i*)(fref1 + (frefstride + 16)));
+        T14 = _mm_unpacklo_epi64(T20, T21);
+
+        T22 = _mm_loadl_epi64((__m128i*)(fref1 + ((2) * frefstride) + 16));
+        T23 = _mm_loadl_epi64((__m128i*)(fref1 + ((3) * frefstride) + 16));
+        T15 = _mm_unpacklo_epi64(T22, T23);
+
+        T20 = _mm_sad_epu8(T00, T10);
+        T21 = _mm_sad_epu8(T01, T11);
+        T22 = _mm_sad_epu8(T02, T12);
+        T23 = _mm_sad_epu8(T03, T13);
+        T30 = _mm_sad_epu8(T04, T14);
+        T31 = _mm_sad_epu8(T05, T15);
+
+        T20 = _mm_add_epi16(T20, T21);
+        T22 = _mm_add_epi16(T22, T23);
+        sum0 = _mm_add_epi16(T20, T22);
+        sum1 = _mm_add_epi16(T30, T31);
+        sum0 = _mm_add_epi16(sum0, sum1);
+
+        sum1 = _mm_shuffle_epi32(sum0, 2);
+        sum0 = _mm_add_epi32(sum0, sum1);
+        res[0] = _mm_cvtsi128_si32(sum0);
+
+        T10 = _mm_loadu_si128((__m128i*)(fref2));
+        T11 = _mm_loadu_si128((__m128i*)(fref2 + frefstride));
+        T12 = _mm_loadu_si128((__m128i*)(fref2 + (2) * frefstride));
+        T13 = _mm_loadu_si128((__m128i*)(fref2 + (3) * frefstride));
+
+        T20 = _mm_loadl_epi64((__m128i*)(fref2 + 16));
+        T21 = _mm_loadl_epi64((__m128i*)(fref2 + (frefstride + 16)));
+        T14 = _mm_unpacklo_epi64(T20, T21);
+
+        T22 = _mm_loadl_epi64((__m128i*)(fref2 + ((2) * frefstride) + 16));
+        T23 = _mm_loadl_epi64((__m128i*)(fref2 + ((3) * frefstride) + 16));
+        T15 = _mm_unpacklo_epi64(T22, T23);
+
+        T20 = _mm_sad_epu8(T00, T10);
+        T21 = _mm_sad_epu8(T01, T11);
+        T22 = _mm_sad_epu8(T02, T12);
+        T23 = _mm_sad_epu8(T03, T13);
+        T30 = _mm_sad_epu8(T04, T14);
+        T31 = _mm_sad_epu8(T05, T15);
+
+        T20 = _mm_add_epi16(T20, T21);
+        T22 = _mm_add_epi16(T22, T23);
+        sum0 = _mm_add_epi16(T20, T22);
+        sum1 = _mm_add_epi16(T30, T31);
+        sum0 = _mm_add_epi16(sum0, sum1);
+
+        sum1 = _mm_shuffle_epi32(sum0, 2);
+        sum0 = _mm_add_epi32(sum0, sum1);
+        res[1] = _mm_cvtsi128_si32(sum0);
+
+        T10 = _mm_loadu_si128((__m128i*)(fref3));
+        T11 = _mm_loadu_si128((__m128i*)(fref3 + frefstride));
+        T12 = _mm_loadu_si128((__m128i*)(fref3 + (2) * frefstride));
+        T13 = _mm_loadu_si128((__m128i*)(fref3 + (3) * frefstride));
+
+        T20 = _mm_loadl_epi64((__m128i*)(fref3 + 16));
+        T21 = _mm_loadl_epi64((__m128i*)(fref3 + (frefstride + 16)));
+        T14 = _mm_unpacklo_epi64(T20, T21);
+
+        T22 = _mm_loadl_epi64((__m128i*)(fref3 + ((2) * frefstride) + 16));
+        T23 = _mm_loadl_epi64((__m128i*)(fref3 + ((3) * frefstride) + 16));
+        T15 = _mm_unpacklo_epi64(T22, T23);
+
+        T20 = _mm_sad_epu8(T00, T10);
+        T21 = _mm_sad_epu8(T01, T11);
+        T22 = _mm_sad_epu8(T02, T12);
+        T23 = _mm_sad_epu8(T03, T13);
+        T30 = _mm_sad_epu8(T04, T14);
+        T31 = _mm_sad_epu8(T05, T15);
+
+        T20 = _mm_add_epi16(T20, T21);
+        T22 = _mm_add_epi16(T22, T23);
+        sum0 = _mm_add_epi16(T20, T22);
+        sum1 = _mm_add_epi16(T30, T31);
+        sum0 = _mm_add_epi16(sum0, sum1);
+
+        sum1 = _mm_shuffle_epi32(sum0, 2);
+        sum0 = _mm_add_epi32(sum0, sum1);
+        res[2] = _mm_cvtsi128_si32(sum0);
+
+        T10 = _mm_loadu_si128((__m128i*)(fref4));
+        T11 = _mm_loadu_si128((__m128i*)(fref4 + frefstride));
+        T12 = _mm_loadu_si128((__m128i*)(fref4 + (2) * frefstride));
+        T13 = _mm_loadu_si128((__m128i*)(fref4 + (3) * frefstride));
+
+        T20 = _mm_loadl_epi64((__m128i*)(fref4 + 16));
+        T21 = _mm_loadl_epi64((__m128i*)(fref4 + (frefstride + 16)));
+        T14 = _mm_unpacklo_epi64(T20, T21);
+
+        T22 = _mm_loadl_epi64((__m128i*)(fref4 + ((2) * frefstride) + 16));
+        T23 = _mm_loadl_epi64((__m128i*)(fref4 + ((3) * frefstride) + 16));
+        T15 = _mm_unpacklo_epi64(T22, T23);
+
+        T20 = _mm_sad_epu8(T00, T10);
+        T21 = _mm_sad_epu8(T01, T11);
+        T22 = _mm_sad_epu8(T02, T12);
+        T23 = _mm_sad_epu8(T03, T13);
+        T30 = _mm_sad_epu8(T04, T14);
+        T31 = _mm_sad_epu8(T05, T15);
+
+        T20 = _mm_add_epi16(T20, T21);
+        T22 = _mm_add_epi16(T22, T23);
+        sum0 = _mm_add_epi16(T20, T22);
+        sum1 = _mm_add_epi16(T30, T31);
+        sum0 = _mm_add_epi16(sum0, sum1);
+
+        sum1 = _mm_shuffle_epi32(sum0, 2);
+        sum0 = _mm_add_epi32(sum0, sum1);
+        res[3] = _mm_cvtsi128_si32(sum0);
+
+        T00 = _mm_load_si128((__m128i*)(fenc + (4) * FENC_STRIDE));
+        T01 = _mm_load_si128((__m128i*)(fenc + (5) * FENC_STRIDE));
+        T02 = _mm_load_si128((__m128i*)(fenc + (6) * FENC_STRIDE));
+        T03 = _mm_load_si128((__m128i*)(fenc + (7) * FENC_STRIDE));
+
+        T10 = _mm_loadl_epi64((__m128i*)(fenc + (4) * FENC_STRIDE + 16));
+        T11 = _mm_loadl_epi64((__m128i*)(fenc + (5) * FENC_STRIDE + 16));
+        T04 = _mm_unpacklo_epi64(T10, T11);
+
+        T12 = _mm_loadl_epi64((__m128i*)(fenc + (6) * FENC_STRIDE + 16));
+        T13 = _mm_loadl_epi64((__m128i*)(fenc + (7) * FENC_STRIDE + 16));
+        T05 = _mm_unpacklo_epi64(T12, T13);
+
+        T10 = _mm_loadu_si128((__m128i*)(fref1 + (4) * frefstride));
+        T11 = _mm_loadu_si128((__m128i*)(fref1 + (5) * frefstride));
+        T12 = _mm_loadu_si128((__m128i*)(fref1 + (6) * frefstride));
+        T13 = _mm_loadu_si128((__m128i*)(fref1 + (7) * frefstride));
+
+        T20 = _mm_loadl_epi64((__m128i*)(fref1 + (4) * frefstride + 16));
+        T21 = _mm_loadl_epi64((__m128i*)(fref1 + (5) * frefstride + 16));
+        T14 = _mm_unpacklo_epi64(T20, T21);
+
+        T22 = _mm_loadl_epi64((__m128i*)(fref1 + (6) * frefstride + 16));
+        T23 = _mm_loadl_epi64((__m128i*)(fref1 + (7) * frefstride + 16));
+        T15 = _mm_unpacklo_epi64(T22, T23);
+
+        T20 = _mm_sad_epu8(T00, T10);
+        T21 = _mm_sad_epu8(T01, T11);
+        T22 = _mm_sad_epu8(T02, T12);
+        T23 = _mm_sad_epu8(T03, T13);
+        T30 = _mm_sad_epu8(T04, T14);
+        T31 = _mm_sad_epu8(T05, T15);
+
+        T20 = _mm_add_epi16(T20, T21);
+        T22 = _mm_add_epi16(T22, T23);
+        sum0 = _mm_add_epi16(T20, T22);
+        sum1 = _mm_add_epi16(T30, T31);
+        sum0 = _mm_add_epi16(sum0, sum1);
+
+        sum1 = _mm_shuffle_epi32(sum0, 2);
+        sum0 = _mm_add_epi32(sum0, sum1);
+        res[0] += _mm_cvtsi128_si32(sum0);
+
+        T10 = _mm_loadu_si128((__m128i*)(fref2 + (4) * frefstride));
+        T11 = _mm_loadu_si128((__m128i*)(fref2 + (5) * frefstride));
+        T12 = _mm_loadu_si128((__m128i*)(fref2 + (6) * frefstride));
+        T13 = _mm_loadu_si128((__m128i*)(fref2 + (7) * frefstride));
+
+        T20 = _mm_loadl_epi64((__m128i*)(fref2 + (4) * frefstride + 16));
+        T21 = _mm_loadl_epi64((__m128i*)(fref2 + (5) * frefstride + 16));
+        T14 = _mm_unpacklo_epi64(T20, T21);
+
+        T22 = _mm_loadl_epi64((__m128i*)(fref2 + (6) * frefstride + 16));
+        T23 = _mm_loadl_epi64((__m128i*)(fref2 + (7) * frefstride + 16));
+        T15 = _mm_unpacklo_epi64(T22, T23);
+
+        T20 = _mm_sad_epu8(T00, T10);
+        T21 = _mm_sad_epu8(T01, T11);
+        T22 = _mm_sad_epu8(T02, T12);
+        T23 = _mm_sad_epu8(T03, T13);
+        T30 = _mm_sad_epu8(T04, T14);
+        T31 = _mm_sad_epu8(T05, T15);
+
+        T20 = _mm_add_epi16(T20, T21);
+        T22 = _mm_add_epi16(T22, T23);
+        sum0 = _mm_add_epi16(T20, T22);
+        sum1 = _mm_add_epi16(T30, T31);
+        sum0 = _mm_add_epi16(sum0, sum1);
+
+        sum1 = _mm_shuffle_epi32(sum0, 2);
+        sum0 = _mm_add_epi32(sum0, sum1);
+        res[1] += _mm_cvtsi128_si32(sum0);
+
+        T10 = _mm_loadu_si128((__m128i*)(fref3 + (4) * frefstride));
+        T11 = _mm_loadu_si128((__m128i*)(fref3 + (5) * frefstride));
+        T12 = _mm_loadu_si128((__m128i*)(fref3 + (6) * frefstride));
+        T13 = _mm_loadu_si128((__m128i*)(fref3 + (7) * frefstride));
+
+        T20 = _mm_loadl_epi64((__m128i*)(fref3 + (4) * frefstride + 16));
+        T21 = _mm_loadl_epi64((__m128i*)(fref3 + (5) * frefstride + 16));
+        T14 = _mm_unpacklo_epi64(T20, T21);
+
+        T22 = _mm_loadl_epi64((__m128i*)(fref3 + (6) * frefstride + 16));
+        T23 = _mm_loadl_epi64((__m128i*)(fref3 + (7) * frefstride + 16));
+        T15 = _mm_unpacklo_epi64(T22, T23);
+
+        T20 = _mm_sad_epu8(T00, T10);
+        T21 = _mm_sad_epu8(T01, T11);
+        T22 = _mm_sad_epu8(T02, T12);
+        T23 = _mm_sad_epu8(T03, T13);
+        T30 = _mm_sad_epu8(T04, T14);
+        T31 = _mm_sad_epu8(T05, T15);
+
+        T20 = _mm_add_epi16(T20, T21);
+        T22 = _mm_add_epi16(T22, T23);
+        sum0 = _mm_add_epi16(T20, T22);
+        sum1 = _mm_add_epi16(T30, T31);
+        sum0 = _mm_add_epi16(sum0, sum1);
+
+        sum1 = _mm_shuffle_epi32(sum0, 2);
+        sum0 = _mm_add_epi32(sum0, sum1);
+        res[2] += _mm_cvtsi128_si32(sum0);
+
+        T10 = _mm_loadu_si128((__m128i*)(fref4 + (4) * frefstride));
+        T11 = _mm_loadu_si128((__m128i*)(fref4 + (5) * frefstride));
+        T12 = _mm_loadu_si128((__m128i*)(fref4 + (6) * frefstride));
+        T13 = _mm_loadu_si128((__m128i*)(fref4 + (7) * frefstride));
+
+        T20 = _mm_loadl_epi64((__m128i*)(fref4 + (4) * frefstride + 16));
+        T21 = _mm_loadl_epi64((__m128i*)(fref4 + (5) * frefstride + 16));
+        T14 = _mm_unpacklo_epi64(T20, T21);
+
+        T22 = _mm_loadl_epi64((__m128i*)(fref4 + (6) * frefstride + 16));
+        T23 = _mm_loadl_epi64((__m128i*)(fref4 + (7) * frefstride + 16));
+        T15 = _mm_unpacklo_epi64(T22, T23);
+
+        T20 = _mm_sad_epu8(T00, T10);
+        T21 = _mm_sad_epu8(T01, T11);
+        T22 = _mm_sad_epu8(T02, T12);
+        T23 = _mm_sad_epu8(T03, T13);
+        T30 = _mm_sad_epu8(T04, T14);
+        T31 = _mm_sad_epu8(T05, T15);
+
+        T20 = _mm_add_epi16(T20, T21);
+        T22 = _mm_add_epi16(T22, T23);
+        sum0 = _mm_add_epi16(T20, T22);
+        sum1 = _mm_add_epi16(T30, T31);
+        sum0 = _mm_add_epi16(sum0, sum1);
+
+        sum1 = _mm_shuffle_epi32(sum0, 2);
+        sum0 = _mm_add_epi32(sum0, sum1);
+        res[3] += _mm_cvtsi128_si32(sum0);
+
+        T00 = _mm_load_si128((__m128i*)(fenc + (8) * FENC_STRIDE));
+        T01 = _mm_load_si128((__m128i*)(fenc + (9) * FENC_STRIDE));
+        T02 = _mm_load_si128((__m128i*)(fenc + (10) * FENC_STRIDE));
+        T03 = _mm_load_si128((__m128i*)(fenc + (11) * FENC_STRIDE));
+
+        T10 = _mm_loadl_epi64((__m128i*)(fenc + (8) * FENC_STRIDE + 16));
+        T11 = _mm_loadl_epi64((__m128i*)(fenc + (9) * FENC_STRIDE + 16));
+        T04 = _mm_unpacklo_epi64(T10, T11);
+
+        T12 = _mm_loadl_epi64((__m128i*)(fenc + (10) * FENC_STRIDE + 16));
+        T13 = _mm_loadl_epi64((__m128i*)(fenc + (11) * FENC_STRIDE + 16));
+        T05 = _mm_unpacklo_epi64(T12, T13);
+
+        T10 = _mm_loadu_si128((__m128i*)(fref1 + (8) * frefstride));
+        T11 = _mm_loadu_si128((__m128i*)(fref1 + (9) * frefstride));
+        T12 = _mm_loadu_si128((__m128i*)(fref1 + (10) * frefstride));
+        T13 = _mm_loadu_si128((__m128i*)(fref1 + (11) * frefstride));
+
+        T20 = _mm_loadl_epi64((__m128i*)(fref1 + (8) * frefstride + 16));
+        T21 = _mm_loadl_epi64((__m128i*)(fref1 + (9) * frefstride + 16));
+        T14 = _mm_unpacklo_epi64(T20, T21);
+
+        T22 = _mm_loadl_epi64((__m128i*)(fref1 + (10) * frefstride + 16));
+        T23 = _mm_loadl_epi64((__m128i*)(fref1 + (11) * frefstride + 16));
+        T15 = _mm_unpacklo_epi64(T22, T23);
+
+        T20 = _mm_sad_epu8(T00, T10);
+        T21 = _mm_sad_epu8(T01, T11);
+        T22 = _mm_sad_epu8(T02, T12);
+        T23 = _mm_sad_epu8(T03, T13);
+        T30 = _mm_sad_epu8(T04, T14);
+        T31 = _mm_sad_epu8(T05, T15);
+
+        T20 = _mm_add_epi16(T20, T21);
+        T22 = _mm_add_epi16(T22, T23);
+        sum0 = _mm_add_epi16(T20, T22);
+        sum1 = _mm_add_epi16(T30, T31);
+        sum0 = _mm_add_epi16(sum0, sum1);
+
+        sum1 = _mm_shuffle_epi32(sum0, 2);
+        sum0 = _mm_add_epi32(sum0, sum1);
+        res[0] += _mm_cvtsi128_si32(sum0);
+
+        T10 = _mm_loadu_si128((__m128i*)(fref2 + (8) * frefstride));
+        T11 = _mm_loadu_si128((__m128i*)(fref2 + (9) * frefstride));
+        T12 = _mm_loadu_si128((__m128i*)(fref2 + (10) * frefstride));
+        T13 = _mm_loadu_si128((__m128i*)(fref2 + (11) * frefstride));
+
+        T20 = _mm_loadl_epi64((__m128i*)(fref2 + (8) * frefstride + 16));
+        T21 = _mm_loadl_epi64((__m128i*)(fref2 + (9) * frefstride + 16));
+        T14 = _mm_unpacklo_epi64(T20, T21);
+
+        T22 = _mm_loadl_epi64((__m128i*)(fref2 + (10) * frefstride + 16));
+        T23 = _mm_loadl_epi64((__m128i*)(fref2 + (11) * frefstride + 16));
+        T15 = _mm_unpacklo_epi64(T22, T23);
+
+        T20 = _mm_sad_epu8(T00, T10);
+        T21 = _mm_sad_epu8(T01, T11);
+        T22 = _mm_sad_epu8(T02, T12);
+        T23 = _mm_sad_epu8(T03, T13);
+        T30 = _mm_sad_epu8(T04, T14);
+        T31 = _mm_sad_epu8(T05, T15);
+
+        T20 = _mm_add_epi16(T20, T21);
+        T22 = _mm_add_epi16(T22, T23);
+        sum0 = _mm_add_epi16(T20, T22);
+        sum1 = _mm_add_epi16(T30, T31);
+        sum0 = _mm_add_epi16(sum0, sum1);
+
+        sum1 = _mm_shuffle_epi32(sum0, 2);
+        sum0 = _mm_add_epi32(sum0, sum1);
+        res[1] += _mm_cvtsi128_si32(sum0);
+
+        T10 = _mm_loadu_si128((__m128i*)(fref3 + (8) * frefstride));
+        T11 = _mm_loadu_si128((__m128i*)(fref3 + (9) * frefstride));
+        T12 = _mm_loadu_si128((__m128i*)(fref3 + (10) * frefstride));
+        T13 = _mm_loadu_si128((__m128i*)(fref3 + (11) * frefstride));
+
+        T20 = _mm_loadl_epi64((__m128i*)(fref3 + (8) * frefstride + 16));
+        T21 = _mm_loadl_epi64((__m128i*)(fref3 + (9) * frefstride + 16));
+        T14 = _mm_unpacklo_epi64(T20, T21);
+
+        T22 = _mm_loadl_epi64((__m128i*)(fref3 + (10) * frefstride + 16));
+        T23 = _mm_loadl_epi64((__m128i*)(fref3 + (11) * frefstride + 16));
+        T15 = _mm_unpacklo_epi64(T22, T23);
+
+        T20 = _mm_sad_epu8(T00, T10);
+        T21 = _mm_sad_epu8(T01, T11);
+        T22 = _mm_sad_epu8(T02, T12);
+        T23 = _mm_sad_epu8(T03, T13);
+        T30 = _mm_sad_epu8(T04, T14);
+        T31 = _mm_sad_epu8(T05, T15);
+
+        T20 = _mm_add_epi16(T20, T21);
+        T22 = _mm_add_epi16(T22, T23);
+        sum0 = _mm_add_epi16(T20, T22);
+        sum1 = _mm_add_epi16(T30, T31);
+        sum0 = _mm_add_epi16(sum0, sum1);
+
+        sum1 = _mm_shuffle_epi32(sum0, 2);
+        sum0 = _mm_add_epi32(sum0, sum1);
+        res[2] += _mm_cvtsi128_si32(sum0);
+
+        T10 = _mm_loadu_si128((__m128i*)(fref4 + (8) * frefstride));
+        T11 = _mm_loadu_si128((__m128i*)(fref4 + (9) * frefstride));
+        T12 = _mm_loadu_si128((__m128i*)(fref4 + (10) * frefstride));
+        T13 = _mm_loadu_si128((__m128i*)(fref4 + (11) * frefstride));
+
+        T20 = _mm_loadl_epi64((__m128i*)(fref4 + (8) * frefstride + 16));
+        T21 = _mm_loadl_epi64((__m128i*)(fref4 + (9) * frefstride + 16));
+        T14 = _mm_unpacklo_epi64(T20, T21);
+
+        T22 = _mm_loadl_epi64((__m128i*)(fref4 + (10) * frefstride + 16));
+        T23 = _mm_loadl_epi64((__m128i*)(fref4 + (11) * frefstride + 16));
+        T15 = _mm_unpacklo_epi64(T22, T23);
+
+        T20 = _mm_sad_epu8(T00, T10);
+        T21 = _mm_sad_epu8(T01, T11);
+        T22 = _mm_sad_epu8(T02, T12);
+        T23 = _mm_sad_epu8(T03, T13);
+        T30 = _mm_sad_epu8(T04, T14);
+        T31 = _mm_sad_epu8(T05, T15);
+
+        T20 = _mm_add_epi16(T20, T21);
+        T22 = _mm_add_epi16(T22, T23);
+        sum0 = _mm_add_epi16(T20, T22);
+        sum1 = _mm_add_epi16(T30, T31);
+        sum0 = _mm_add_epi16(sum0, sum1);
+
+        sum1 = _mm_shuffle_epi32(sum0, 2);
+        sum0 = _mm_add_epi32(sum0, sum1);
+        res[3] += _mm_cvtsi128_si32(sum0);
+
+        T00 = _mm_load_si128((__m128i*)(fenc + (12) * FENC_STRIDE));
+        T01 = _mm_load_si128((__m128i*)(fenc + (13) * FENC_STRIDE));
+        T02 = _mm_load_si128((__m128i*)(fenc + (14) * FENC_STRIDE));
+        T03 = _mm_load_si128((__m128i*)(fenc + (15) * FENC_STRIDE));
+
+        T10 = _mm_loadl_epi64((__m128i*)(fenc + (12) * FENC_STRIDE + 16));
+        T11 = _mm_loadl_epi64((__m128i*)(fenc + (13) * FENC_STRIDE + 16));
+        T04 = _mm_unpacklo_epi64(T10, T11);
+
+        T12 = _mm_loadl_epi64((__m128i*)(fenc + (14) * FENC_STRIDE + 16));
+        T13 = _mm_loadl_epi64((__m128i*)(fenc + (15) * FENC_STRIDE + 16));
+        T05 = _mm_unpacklo_epi64(T12, T13);
+
+        T10 = _mm_loadu_si128((__m128i*)(fref1 + (12) * frefstride));
+        T11 = _mm_loadu_si128((__m128i*)(fref1 + (13) * frefstride));
+        T12 = _mm_loadu_si128((__m128i*)(fref1 + (14) * frefstride));
+        T13 = _mm_loadu_si128((__m128i*)(fref1 + (15) * frefstride));
+
+        T20 = _mm_loadl_epi64((__m128i*)(fref1 + (12) * frefstride + 16));
+        T21 = _mm_loadl_epi64((__m128i*)(fref1 + (13) * frefstride + 16));
+        T14 = _mm_unpacklo_epi64(T20, T21);
+
+        T22 = _mm_loadl_epi64((__m128i*)(fref1 + (14) * frefstride + 16));
+        T23 = _mm_loadl_epi64((__m128i*)(fref1 + (15) * frefstride + 16));
+        T15 = _mm_unpacklo_epi64(T22, T23);
+
+        T20 = _mm_sad_epu8(T00, T10);
+        T21 = _mm_sad_epu8(T01, T11);
+        T22 = _mm_sad_epu8(T02, T12);
+        T23 = _mm_sad_epu8(T03, T13);
+        T30 = _mm_sad_epu8(T04, T14);
+        T31 = _mm_sad_epu8(T05, T15);
+
+        T20 = _mm_add_epi16(T20, T21);
+        T22 = _mm_add_epi16(T22, T23);
+        sum0 = _mm_add_epi16(T20, T22);
+        sum1 = _mm_add_epi16(T30, T31);
+        sum0 = _mm_add_epi16(sum0, sum1);
+
+        sum1 = _mm_shuffle_epi32(sum0, 2);
+        sum0 = _mm_add_epi32(sum0, sum1);
+        res[0] += _mm_cvtsi128_si32(sum0);
+
+        T10 = _mm_loadu_si128((__m128i*)(fref2 + (12) * frefstride));
+        T11 = _mm_loadu_si128((__m128i*)(fref2 + (13) * frefstride));
+        T12 = _mm_loadu_si128((__m128i*)(fref2 + (14) * frefstride));
+        T13 = _mm_loadu_si128((__m128i*)(fref2 + (15) * frefstride));
+
+        T20 = _mm_loadl_epi64((__m128i*)(fref2 + (12) * frefstride + 16));
+        T21 = _mm_loadl_epi64((__m128i*)(fref2 + (13) * frefstride + 16));
+        T14 = _mm_unpacklo_epi64(T20, T21);
+
+        T22 = _mm_loadl_epi64((__m128i*)(fref2 + (14) * frefstride + 16));
+        T23 = _mm_loadl_epi64((__m128i*)(fref2 + (15) * frefstride + 16));
+        T15 = _mm_unpacklo_epi64(T22, T23);
+
+        T20 = _mm_sad_epu8(T00, T10);
+        T21 = _mm_sad_epu8(T01, T11);
+        T22 = _mm_sad_epu8(T02, T12);
+        T23 = _mm_sad_epu8(T03, T13);
+        T30 = _mm_sad_epu8(T04, T14);
+        T31 = _mm_sad_epu8(T05, T15);
+
+        T20 = _mm_add_epi16(T20, T21);
+        T22 = _mm_add_epi16(T22, T23);
+        sum0 = _mm_add_epi16(T20, T22);
+        sum1 = _mm_add_epi16(T30, T31);
+        sum0 = _mm_add_epi16(sum0, sum1);
+
+        sum1 = _mm_shuffle_epi32(sum0, 2);
+        sum0 = _mm_add_epi32(sum0, sum1);
+        res[1] += _mm_cvtsi128_si32(sum0);
+
+        T10 = _mm_loadu_si128((__m128i*)(fref3 + (12) * frefstride));
+        T11 = _mm_loadu_si128((__m128i*)(fref3 + (13) * frefstride));
+        T12 = _mm_loadu_si128((__m128i*)(fref3 + (14) * frefstride));
+        T13 = _mm_loadu_si128((__m128i*)(fref3 + (15) * frefstride));
+
+        T20 = _mm_loadl_epi64((__m128i*)(fref3 + (12) * frefstride + 16));
+        T21 = _mm_loadl_epi64((__m128i*)(fref3 + (13) * frefstride + 16));
+        T14 = _mm_unpacklo_epi64(T20, T21);
+
+        T22 = _mm_loadl_epi64((__m128i*)(fref3 + (14) * frefstride + 16));
+        T23 = _mm_loadl_epi64((__m128i*)(fref3 + (15) * frefstride + 16));
+        T15 = _mm_unpacklo_epi64(T22, T23);
+
+        T20 = _mm_sad_epu8(T00, T10);
+        T21 = _mm_sad_epu8(T01, T11);
+        T22 = _mm_sad_epu8(T02, T12);
+        T23 = _mm_sad_epu8(T03, T13);
+        T30 = _mm_sad_epu8(T04, T14);
+        T31 = _mm_sad_epu8(T05, T15);
+
+        T20 = _mm_add_epi16(T20, T21);
+        T22 = _mm_add_epi16(T22, T23);
+        sum0 = _mm_add_epi16(T20, T22);
+        sum1 = _mm_add_epi16(T30, T31);
+        sum0 = _mm_add_epi16(sum0, sum1);
+
+        sum1 = _mm_shuffle_epi32(sum0, 2);
+        sum0 = _mm_add_epi32(sum0, sum1);
+        res[2] += _mm_cvtsi128_si32(sum0);
+
+        T10 = _mm_loadu_si128((__m128i*)(fref4 + (12) * frefstride));
+        T11 = _mm_loadu_si128((__m128i*)(fref4 + (13) * frefstride));
+        T12 = _mm_loadu_si128((__m128i*)(fref4 + (14) * frefstride));
+        T13 = _mm_loadu_si128((__m128i*)(fref4 + (15) * frefstride));
+
+        T20 = _mm_loadl_epi64((__m128i*)(fref4 + (12) * frefstride + 16));
+        T21 = _mm_loadl_epi64((__m128i*)(fref4 + (13) * frefstride + 16));
+        T14 = _mm_unpacklo_epi64(T20, T21);
+
+        T22 = _mm_loadl_epi64((__m128i*)(fref4 + (14) * frefstride + 16));
+        T23 = _mm_loadl_epi64((__m128i*)(fref4 + (15) * frefstride + 16));
+        T15 = _mm_unpacklo_epi64(T22, T23);
+
+        T20 = _mm_sad_epu8(T00, T10);
+        T21 = _mm_sad_epu8(T01, T11);
+        T22 = _mm_sad_epu8(T02, T12);
+        T23 = _mm_sad_epu8(T03, T13);
+        T30 = _mm_sad_epu8(T04, T14);
+        T31 = _mm_sad_epu8(T05, T15);
+
+        T20 = _mm_add_epi16(T20, T21);
+        T22 = _mm_add_epi16(T22, T23);
+        sum0 = _mm_add_epi16(T20, T22);
+        sum1 = _mm_add_epi16(T30, T31);
+        sum0 = _mm_add_epi16(sum0, sum1);
+
+        sum1 = _mm_shuffle_epi32(sum0, 2);
+        sum0 = _mm_add_epi32(sum0, sum1);
+        res[3] += _mm_cvtsi128_si32(sum0);
+    }
+    else if ((ly % 8) == 0)
+    {
+        res[0] = res[1] = res[2] = res[3] = 0;
+        for(int i = 0; i < ly; i += 8)
+        {
+            __m128i T00, T01, T02, T03, T04, T05;
+            __m128i T10, T11, T12, T13, T14, T15;
+            __m128i T20, T21, T22, T23;
+            __m128i T30, T31;
+
+            __m128i sum0, sum1;
+
+            T00 = _mm_load_si128((__m128i*)(fenc + (i) * FENC_STRIDE));
+            T01 = _mm_load_si128((__m128i*)(fenc + (i + 1) * FENC_STRIDE));
+            T02 = _mm_load_si128((__m128i*)(fenc + (i + 2) * FENC_STRIDE));
+            T03 = _mm_load_si128((__m128i*)(fenc + (i + 3) * FENC_STRIDE));
+
+            T10 = _mm_loadl_epi64((__m128i*)(fenc + (i) * FENC_STRIDE + 16));
+            T11 = _mm_loadl_epi64((__m128i*)(fenc + (i + 1) * FENC_STRIDE + 16));
+            T04 = _mm_unpacklo_epi64(T10, T11);
+
+            T12 = _mm_loadl_epi64((__m128i*)(fenc + (i + 2) * FENC_STRIDE + 16));
+            T13 = _mm_loadl_epi64((__m128i*)(fenc + (i + 3) * FENC_STRIDE + 16));
+            T05 = _mm_unpacklo_epi64(T12, T13);
+
+            T10 = _mm_loadu_si128((__m128i*)(fref1 + (i) * frefstride));
+            T11 = _mm_loadu_si128((__m128i*)(fref1 + (i + 1) * frefstride));
+            T12 = _mm_loadu_si128((__m128i*)(fref1 + (i + 2) * frefstride));
+            T13 = _mm_loadu_si128((__m128i*)(fref1 + (i + 3) * frefstride));
+
+            T20 = _mm_loadl_epi64((__m128i*)(fref1 + (i) * frefstride + 16));
+            T21 = _mm_loadl_epi64((__m128i*)(fref1 + (i + 1) * frefstride + 16));
+            T14 = _mm_unpacklo_epi64(T20, T21);
+
+            T22 = _mm_loadl_epi64((__m128i*)(fref1 + (i + 2) * frefstride + 16));
+            T23 = _mm_loadl_epi64((__m128i*)(fref1 + (i + 3) * frefstride + 16));
+            T15 = _mm_unpacklo_epi64(T22, T23);
+
+            T20 = _mm_sad_epu8(T00, T10);
+            T21 = _mm_sad_epu8(T01, T11);
+            T22 = _mm_sad_epu8(T02, T12);
+            T23 = _mm_sad_epu8(T03, T13);
+            T30 = _mm_sad_epu8(T04, T14);
+            T31 = _mm_sad_epu8(T05, T15);
+
+            T20 = _mm_add_epi16(T20, T21);
+            T22 = _mm_add_epi16(T22, T23);
+            sum0 = _mm_add_epi16(T20, T22);
+            sum1 = _mm_add_epi16(T30, T31);
+            sum0 = _mm_add_epi16(sum0, sum1);
+
+            sum1 = _mm_shuffle_epi32(sum0, 2);
+            sum0 = _mm_add_epi32(sum0, sum1);
+            res[0] += _mm_cvtsi128_si32(sum0);
+
+            T10 = _mm_loadu_si128((__m128i*)(fref2 + (i) * frefstride));
+            T11 = _mm_loadu_si128((__m128i*)(fref2 + (i + 1) * frefstride));
+            T12 = _mm_loadu_si128((__m128i*)(fref2 + (i + 2) * frefstride));
+            T13 = _mm_loadu_si128((__m128i*)(fref2 + (i + 3) * frefstride));
+
+            T20 = _mm_loadl_epi64((__m128i*)(fref2 + (i) * frefstride + 16));
+            T21 = _mm_loadl_epi64((__m128i*)(fref2 + (i + 1) * frefstride + 16));
+            T14 = _mm_unpacklo_epi64(T20, T21);
+
+            T22 = _mm_loadl_epi64((__m128i*)(fref2 + (i + 2) * frefstride + 16));
+            T23 = _mm_loadl_epi64((__m128i*)(fref2 + (i + 3) * frefstride + 16));
+            T15 = _mm_unpacklo_epi64(T22, T23);
+
+            T20 = _mm_sad_epu8(T00, T10);
+            T21 = _mm_sad_epu8(T01, T11);
+            T22 = _mm_sad_epu8(T02, T12);
+            T23 = _mm_sad_epu8(T03, T13);
+            T30 = _mm_sad_epu8(T04, T14);
+            T31 = _mm_sad_epu8(T05, T15);
+
+            T20 = _mm_add_epi16(T20, T21);
+            T22 = _mm_add_epi16(T22, T23);
+            sum0 = _mm_add_epi16(T20, T22);
+            sum1 = _mm_add_epi16(T30, T31);
+            sum0 = _mm_add_epi16(sum0, sum1);
+
+            sum1 = _mm_shuffle_epi32(sum0, 2);
+            sum0 = _mm_add_epi32(sum0, sum1);
+            res[1] += _mm_cvtsi128_si32(sum0);
+
+            T10 = _mm_loadu_si128((__m128i*)(fref3 + (i) * frefstride));
+            T11 = _mm_loadu_si128((__m128i*)(fref3 + (i + 1) * frefstride));
+            T12 = _mm_loadu_si128((__m128i*)(fref3 + (i + 2) * frefstride));
+            T13 = _mm_loadu_si128((__m128i*)(fref3 + (i + 3) * frefstride));
+
+            T20 = _mm_loadl_epi64((__m128i*)(fref3 + (i) * frefstride + 16));
+            T21 = _mm_loadl_epi64((__m128i*)(fref3 + (i + 1) * frefstride + 16));
+            T14 = _mm_unpacklo_epi64(T20, T21);
+
+            T22 = _mm_loadl_epi64((__m128i*)(fref3 + (i + 2) * frefstride + 16));
+            T23 = _mm_loadl_epi64((__m128i*)(fref3 + (i + 3) * frefstride + 16));
+            T15 = _mm_unpacklo_epi64(T22, T23);
+
+            T20 = _mm_sad_epu8(T00, T10);
+            T21 = _mm_sad_epu8(T01, T11);
+            T22 = _mm_sad_epu8(T02, T12);
+            T23 = _mm_sad_epu8(T03, T13);
+            T30 = _mm_sad_epu8(T04, T14);
+            T31 = _mm_sad_epu8(T05, T15);
+
+            T20 = _mm_add_epi16(T20, T21);
+            T22 = _mm_add_epi16(T22, T23);
+            sum0 = _mm_add_epi16(T20, T22);
+            sum1 = _mm_add_epi16(T30, T31);
+            sum0 = _mm_add_epi16(sum0, sum1);
+
+            sum1 = _mm_shuffle_epi32(sum0, 2);
+            sum0 = _mm_add_epi32(sum0, sum1);
+            res[2] += _mm_cvtsi128_si32(sum0);
+
+            T10 = _mm_loadu_si128((__m128i*)(fref4 + (i) * frefstride));
+            T11 = _mm_loadu_si128((__m128i*)(fref4 + (i + 1) * frefstride));
+            T12 = _mm_loadu_si128((__m128i*)(fref4 + (i + 2) * frefstride));
+            T13 = _mm_loadu_si128((__m128i*)(fref4 + (i + 3) * frefstride));
+
+            T20 = _mm_loadl_epi64((__m128i*)(fref4 + (i) * frefstride + 16));
+            T21 = _mm_loadl_epi64((__m128i*)(fref4 + (i + 1) * frefstride + 16));
+            T14 = _mm_unpacklo_epi64(T20, T21);
+
+            T22 = _mm_loadl_epi64((__m128i*)(fref4 + (i + 2) * frefstride + 16));
+            T23 = _mm_loadl_epi64((__m128i*)(fref4 + (i + 3) * frefstride + 16));
+            T15 = _mm_unpacklo_epi64(T22, T23);
+
+            T20 = _mm_sad_epu8(T00, T10);
+            T21 = _mm_sad_epu8(T01, T11);
+            T22 = _mm_sad_epu8(T02, T12);
+            T23 = _mm_sad_epu8(T03, T13);
+            T30 = _mm_sad_epu8(T04, T14);
+            T31 = _mm_sad_epu8(T05, T15);
+
+            T20 = _mm_add_epi16(T20, T21);
+            T22 = _mm_add_epi16(T22, T23);
+            sum0 = _mm_add_epi16(T20, T22);
+            sum1 = _mm_add_epi16(T30, T31);
+            sum0 = _mm_add_epi16(sum0, sum1);
+
+            sum1 = _mm_shuffle_epi32(sum0, 2);
+            sum0 = _mm_add_epi32(sum0, sum1);
+            res[3] += _mm_cvtsi128_si32(sum0);
+
+            T00 = _mm_load_si128((__m128i*)(fenc + (i + 4) * FENC_STRIDE));
+            T01 = _mm_load_si128((__m128i*)(fenc + (i + 5) * FENC_STRIDE));
+            T02 = _mm_load_si128((__m128i*)(fenc + (i + 6) * FENC_STRIDE));
+            T03 = _mm_load_si128((__m128i*)(fenc + (i + 7) * FENC_STRIDE));
+
+            T10 = _mm_loadl_epi64((__m128i*)(fenc + (i + 4) * FENC_STRIDE + 16));
+            T11 = _mm_loadl_epi64((__m128i*)(fenc + (i + 5) * FENC_STRIDE + 16));
+            T04 = _mm_unpacklo_epi64(T10, T11);
+
+            T12 = _mm_loadl_epi64((__m128i*)(fenc + (i + 6) * FENC_STRIDE + 16));
+            T13 = _mm_loadl_epi64((__m128i*)(fenc + (i + 7) * FENC_STRIDE + 16));
+            T05 = _mm_unpacklo_epi64(T12, T13);
+
+            T10 = _mm_loadu_si128((__m128i*)(fref1 + (i + 4) * frefstride));
+            T11 = _mm_loadu_si128((__m128i*)(fref1 + (i + 5) * frefstride));
+            T12 = _mm_loadu_si128((__m128i*)(fref1 + (i + 6) * frefstride));
+            T13 = _mm_loadu_si128((__m128i*)(fref1 + (i + 7) * frefstride));
+
+            T20 = _mm_loadl_epi64((__m128i*)(fref1 + (i + 4) * frefstride + 16));
+            T21 = _mm_loadl_epi64((__m128i*)(fref1 + (i + 5) * frefstride + 16));
+            T14 = _mm_unpacklo_epi64(T20, T21);
+
+            T22 = _mm_loadl_epi64((__m128i*)(fref1 + (i + 6) * frefstride + 16));
+            T23 = _mm_loadl_epi64((__m128i*)(fref1 + (i + 7) * frefstride + 16));
+            T15 = _mm_unpacklo_epi64(T22, T23);
+
+            T20 = _mm_sad_epu8(T00, T10);
+            T21 = _mm_sad_epu8(T01, T11);
+            T22 = _mm_sad_epu8(T02, T12);
+            T23 = _mm_sad_epu8(T03, T13);
+            T30 = _mm_sad_epu8(T04, T14);
+            T31 = _mm_sad_epu8(T05, T15);
+
+            T20 = _mm_add_epi16(T20, T21);
+            T22 = _mm_add_epi16(T22, T23);
+            sum0 = _mm_add_epi16(T20, T22);
+            sum1 = _mm_add_epi16(T30, T31);
+            sum0 = _mm_add_epi16(sum0, sum1);
+
+            sum1 = _mm_shuffle_epi32(sum0, 2);
+            sum0 = _mm_add_epi32(sum0, sum1);
+            res[0] += _mm_cvtsi128_si32(sum0);
+
+            T10 = _mm_loadu_si128((__m128i*)(fref2 + (i + 4) * frefstride));
+            T11 = _mm_loadu_si128((__m128i*)(fref2 + (i + 5) * frefstride));
+            T12 = _mm_loadu_si128((__m128i*)(fref2 + (i + 6) * frefstride));
+            T13 = _mm_loadu_si128((__m128i*)(fref2 + (i + 7) * frefstride));
+
+            T20 = _mm_loadl_epi64((__m128i*)(fref2 + (i + 4) * frefstride + 16));
+            T21 = _mm_loadl_epi64((__m128i*)(fref2 + (i + 5) * frefstride + 16));
+            T14 = _mm_unpacklo_epi64(T20, T21);
+
+            T22 = _mm_loadl_epi64((__m128i*)(fref2 + (i + 6) * frefstride + 16));
+            T23 = _mm_loadl_epi64((__m128i*)(fref2 + (i + 7) * frefstride + 16));
+            T15 = _mm_unpacklo_epi64(T22, T23);
+
+            T20 = _mm_sad_epu8(T00, T10);
+            T21 = _mm_sad_epu8(T01, T11);
+            T22 = _mm_sad_epu8(T02, T12);
+            T23 = _mm_sad_epu8(T03, T13);
+            T30 = _mm_sad_epu8(T04, T14);
+            T31 = _mm_sad_epu8(T05, T15);
+
+            T20 = _mm_add_epi16(T20, T21);
+            T22 = _mm_add_epi16(T22, T23);
+            sum0 = _mm_add_epi16(T20, T22);
+            sum1 = _mm_add_epi16(T30, T31);
+            sum0 = _mm_add_epi16(sum0, sum1);
+
+            sum1 = _mm_shuffle_epi32(sum0, 2);
+            sum0 = _mm_add_epi32(sum0, sum1);
+            res[1] += _mm_cvtsi128_si32(sum0);
+
+            T10 = _mm_loadu_si128((__m128i*)(fref3 + (i + 4) * frefstride));
+            T11 = _mm_loadu_si128((__m128i*)(fref3 + (i + 5) * frefstride));
+            T12 = _mm_loadu_si128((__m128i*)(fref3 + (i + 6) * frefstride));
+            T13 = _mm_loadu_si128((__m128i*)(fref3 + (i + 7) * frefstride));
+
+            T20 = _mm_loadl_epi64((__m128i*)(fref3 + (i + 4) * frefstride + 16));
+            T21 = _mm_loadl_epi64((__m128i*)(fref3 + (i + 5) * frefstride + 16));
+            T14 = _mm_unpacklo_epi64(T20, T21);
+
+            T22 = _mm_loadl_epi64((__m128i*)(fref3 + (i + 6) * frefstride + 16));
+            T23 = _mm_loadl_epi64((__m128i*)(fref3 + (i + 7) * frefstride + 16));
+            T15 = _mm_unpacklo_epi64(T22, T23);
+
+            T20 = _mm_sad_epu8(T00, T10);
+            T21 = _mm_sad_epu8(T01, T11);
+            T22 = _mm_sad_epu8(T02, T12);
+            T23 = _mm_sad_epu8(T03, T13);
+            T30 = _mm_sad_epu8(T04, T14);
+            T31 = _mm_sad_epu8(T05, T15);
+
+            T20 = _mm_add_epi16(T20, T21);
+            T22 = _mm_add_epi16(T22, T23);
+            sum0 = _mm_add_epi16(T20, T22);
+            sum1 = _mm_add_epi16(T30, T31);
+            sum0 = _mm_add_epi16(sum0, sum1);
+
+            sum1 = _mm_shuffle_epi32(sum0, 2);
+            sum0 = _mm_add_epi32(sum0, sum1);
+            res[2] += _mm_cvtsi128_si32(sum0);
+
+            T10 = _mm_loadu_si128((__m128i*)(fref4 + (i + 4) * frefstride));
+            T11 = _mm_loadu_si128((__m128i*)(fref4 + (i + 5) * frefstride));
+            T12 = _mm_loadu_si128((__m128i*)(fref4 + (i + 6) * frefstride));
+            T13 = _mm_loadu_si128((__m128i*)(fref4 + (i + 7) * frefstride));
+
+            T20 = _mm_loadl_epi64((__m128i*)(fref4 + (i + 4) * frefstride + 16));
+            T21 = _mm_loadl_epi64((__m128i*)(fref4 + (i + 5) * frefstride + 16));
+            T14 = _mm_unpacklo_epi64(T20, T21);
+
+            T22 = _mm_loadl_epi64((__m128i*)(fref4 + (i + 6) * frefstride + 16));
+            T23 = _mm_loadl_epi64((__m128i*)(fref4 + (i + 7) * frefstride + 16));
+            T15 = _mm_unpacklo_epi64(T22, T23);
+
+            T20 = _mm_sad_epu8(T00, T10);
+            T21 = _mm_sad_epu8(T01, T11);
+            T22 = _mm_sad_epu8(T02, T12);
+            T23 = _mm_sad_epu8(T03, T13);
+            T30 = _mm_sad_epu8(T04, T14);
+            T31 = _mm_sad_epu8(T05, T15);
+
+            T20 = _mm_add_epi16(T20, T21);
+            T22 = _mm_add_epi16(T22, T23);
+            sum0 = _mm_add_epi16(T20, T22);
+            sum1 = _mm_add_epi16(T30, T31);
+            sum0 = _mm_add_epi16(sum0, sum1);
+
+            sum1 = _mm_shuffle_epi32(sum0, 2);
+            sum0 = _mm_add_epi32(sum0, sum1);
+            res[3] += _mm_cvtsi128_si32(sum0);
+        }
+    }
+    else
+    {
+        res[0] = res[1] = res[2] = res[3] = 0;
+        for(int i = 0; i < ly; i += 4)
+        {
+            __m128i T00, T01, T02, T03, T04, T05;
+            __m128i T10, T11, T12, T13, T14, T15;
+            __m128i T20, T21, T22, T23;
+            __m128i T30, T31;
+
+            __m128i sum0, sum1;
+
+            T00 = _mm_load_si128((__m128i*)(fenc + (i) * FENC_STRIDE));
+            T01 = _mm_load_si128((__m128i*)(fenc + (i + 1) * FENC_STRIDE));
+            T02 = _mm_load_si128((__m128i*)(fenc + (i + 2) * FENC_STRIDE));
+            T03 = _mm_load_si128((__m128i*)(fenc + (i + 3) * FENC_STRIDE));
+
+            T10 = _mm_loadl_epi64((__m128i*)(fenc + (i) * FENC_STRIDE + 16));
+            T11 = _mm_loadl_epi64((__m128i*)(fenc + (i + 1) * FENC_STRIDE + 16));
+            T04 = _mm_unpacklo_epi64(T10, T11);
+
+            T12 = _mm_loadl_epi64((__m128i*)(fenc + (i + 2) * FENC_STRIDE + 16));
+            T13 = _mm_loadl_epi64((__m128i*)(fenc + (i + 3) * FENC_STRIDE + 16));
+            T05 = _mm_unpacklo_epi64(T12, T13);
+
+            T10 = _mm_loadu_si128((__m128i*)(fref1 + (i) * frefstride));
+            T11 = _mm_loadu_si128((__m128i*)(fref1 + (i + 1) * frefstride));
+            T12 = _mm_loadu_si128((__m128i*)(fref1 + (i + 2) * frefstride));
+            T13 = _mm_loadu_si128((__m128i*)(fref1 + (i + 3) * frefstride));
+
+            T20 = _mm_loadl_epi64((__m128i*)(fref1 + (i) * frefstride + 16));
+            T21 = _mm_loadl_epi64((__m128i*)(fref1 + (i + 1) * frefstride + 16));
+            T14 = _mm_unpacklo_epi64(T20, T21);
+
+            T22 = _mm_loadl_epi64((__m128i*)(fref1 + (i + 2) * frefstride + 16));
+            T23 = _mm_loadl_epi64((__m128i*)(fref1 + (i + 3) * frefstride + 16));
+            T15 = _mm_unpacklo_epi64(T22, T23);
+
+            T20 = _mm_sad_epu8(T00, T10);
+            T21 = _mm_sad_epu8(T01, T11);
+            T22 = _mm_sad_epu8(T02, T12);
+            T23 = _mm_sad_epu8(T03, T13);
+            T30 = _mm_sad_epu8(T04, T14);
+            T31 = _mm_sad_epu8(T05, T15);
+
+            T20 = _mm_add_epi16(T20, T21);
+            T22 = _mm_add_epi16(T22, T23);
+            sum0 = _mm_add_epi16(T20, T22);
+            sum1 = _mm_add_epi16(T30, T31);
+            sum0 = _mm_add_epi16(sum0, sum1);
+
+            sum1 = _mm_shuffle_epi32(sum0, 2);
+            sum0 = _mm_add_epi32(sum0, sum1);
+            res[0] += _mm_cvtsi128_si32(sum0);
+
+            T10 = _mm_loadu_si128((__m128i*)(fref2 + (i) * frefstride));
+            T11 = _mm_loadu_si128((__m128i*)(fref2 + (i + 1) * frefstride));
+            T12 = _mm_loadu_si128((__m128i*)(fref2 + (i + 2) * frefstride));
+            T13 = _mm_loadu_si128((__m128i*)(fref2 + (i + 3) * frefstride));
+
+            T20 = _mm_loadl_epi64((__m128i*)(fref2 + (i) * frefstride + 16));
+            T21 = _mm_loadl_epi64((__m128i*)(fref2 + (i + 1) * frefstride + 16));
+            T14 = _mm_unpacklo_epi64(T20, T21);
+
+            T22 = _mm_loadl_epi64((__m128i*)(fref2 + (i + 2) * frefstride + 16));
+            T23 = _mm_loadl_epi64((__m128i*)(fref2 + (i + 3) * frefstride + 16));
+            T15 = _mm_unpacklo_epi64(T22, T23);
+
+            T20 = _mm_sad_epu8(T00, T10);
+            T21 = _mm_sad_epu8(T01, T11);
+            T22 = _mm_sad_epu8(T02, T12);
+            T23 = _mm_sad_epu8(T03, T13);
+            T30 = _mm_sad_epu8(T04, T14);
+            T31 = _mm_sad_epu8(T05, T15);
+
+            T20 = _mm_add_epi16(T20, T21);
+            T22 = _mm_add_epi16(T22, T23);
+            sum0 = _mm_add_epi16(T20, T22);
+            sum1 = _mm_add_epi16(T30, T31);
+            sum0 = _mm_add_epi16(sum0, sum1);
+
+            sum1 = _mm_shuffle_epi32(sum0, 2);
+            sum0 = _mm_add_epi32(sum0, sum1);
+            res[1] += _mm_cvtsi128_si32(sum0);
+
+            T10 = _mm_loadu_si128((__m128i*)(fref3 + (i) * frefstride));
+            T11 = _mm_loadu_si128((__m128i*)(fref3 + (i + 1) * frefstride));
+            T12 = _mm_loadu_si128((__m128i*)(fref3 + (i + 2) * frefstride));
+            T13 = _mm_loadu_si128((__m128i*)(fref3 + (i + 3) * frefstride));
+
+            T20 = _mm_loadl_epi64((__m128i*)(fref3 + (i) * frefstride + 16));
+            T21 = _mm_loadl_epi64((__m128i*)(fref3 + (i + 1) * frefstride + 16));
+            T14 = _mm_unpacklo_epi64(T20, T21);
+
+            T22 = _mm_loadl_epi64((__m128i*)(fref3 + (i + 2) * frefstride + 16));
+            T23 = _mm_loadl_epi64((__m128i*)(fref3 + (i + 3) * frefstride + 16));
+            T15 = _mm_unpacklo_epi64(T22, T23);
+
+            T20 = _mm_sad_epu8(T00, T10);
+            T21 = _mm_sad_epu8(T01, T11);
+            T22 = _mm_sad_epu8(T02, T12);
+            T23 = _mm_sad_epu8(T03, T13);
+            T30 = _mm_sad_epu8(T04, T14);
+            T31 = _mm_sad_epu8(T05, T15);
+
+            T20 = _mm_add_epi16(T20, T21);
+            T22 = _mm_add_epi16(T22, T23);
+            sum0 = _mm_add_epi16(T20, T22);
+            sum1 = _mm_add_epi16(T30, T31);
+            sum0 = _mm_add_epi16(sum0, sum1);
+
+            sum1 = _mm_shuffle_epi32(sum0, 2);
+            sum0 = _mm_add_epi32(sum0, sum1);
+            res[2] += _mm_cvtsi128_si32(sum0);
+
+            T10 = _mm_loadu_si128((__m128i*)(fref4 + (i) * frefstride));
+            T11 = _mm_loadu_si128((__m128i*)(fref4 + (i + 1) * frefstride));
+            T12 = _mm_loadu_si128((__m128i*)(fref4 + (i + 2) * frefstride));
+            T13 = _mm_loadu_si128((__m128i*)(fref4 + (i + 3) * frefstride));
+
+            T20 = _mm_loadl_epi64((__m128i*)(fref4 + (i) * frefstride + 16));
+            T21 = _mm_loadl_epi64((__m128i*)(fref4 + (i + 1) * frefstride + 16));
+            T14 = _mm_unpacklo_epi64(T20, T21);
+
+            T22 = _mm_loadl_epi64((__m128i*)(fref4 + (i + 2) * frefstride + 16));
+            T23 = _mm_loadl_epi64((__m128i*)(fref4 + (i + 3) * frefstride + 16));
+            T15 = _mm_unpacklo_epi64(T22, T23);
+
+            T20 = _mm_sad_epu8(T00, T10);
+            T21 = _mm_sad_epu8(T01, T11);
+            T22 = _mm_sad_epu8(T02, T12);
+            T23 = _mm_sad_epu8(T03, T13);
+            T30 = _mm_sad_epu8(T04, T14);
+            T31 = _mm_sad_epu8(T05, T15);
+
+            T20 = _mm_add_epi16(T20, T21);
+            T22 = _mm_add_epi16(T22, T23);
+            sum0 = _mm_add_epi16(T20, T22);
+            sum1 = _mm_add_epi16(T30, T31);
+            sum0 = _mm_add_epi16(sum0, sum1);
+
+            sum1 = _mm_shuffle_epi32(sum0, 2);
+            sum0 = _mm_add_epi32(sum0, sum1);
+            res[3] += _mm_cvtsi128_si32(sum0);
+        }
+    }
+}
+
 #endif /* if INSTRSET >= X265_CPU_LEVEL_SSE41 */
 
 template<int ly>
-void sad_x4_24(pixel *fenc, pixel *fref1, pixel *fref2, pixel *fref3, pixel *fref4, intptr_t frefstride, int *res)
-{
-    Vec16uc m1, n1, n2, n3, n4;
-
-    Vec4i sum1(0), sum2(0), sum3(0), sum4(0);
-    Vec8us sad1(0), sad2(0), sad3(0), sad4(0);
-    int max_iterators = (ly >> 4) << 4;
-    int row;
-
-    for (row = 0; row < max_iterators; row += 16)
-    {
-        for (int i = 0; i < 16; i++)
-        {
-            m1.load_a(fenc);
-            n1.load(fref1);
-            n2.load(fref2);
-            n3.load(fref3);
-            n4.load(fref4);
-
-            sad1.addSumAbsDiff(m1, n1);
-            sad2.addSumAbsDiff(m1, n2);
-            sad3.addSumAbsDiff(m1, n3);
-            sad4.addSumAbsDiff(m1, n4);
-
-            m1.load_a(fenc + 16);
-            m1.cutoff(8);
-            n1.load(fref1 + 16);
-            n1.cutoff(8);
-            n2.load(fref2 + 16);
-            n2.cutoff(8);
-            n3.load(fref3 + 16);
-            n3.cutoff(8);
-            n4.load(fref4 + 16);
-            n4.cutoff(8);
-
-            sad1.addSumAbsDiff(m1, n1);
-            sad2.addSumAbsDiff(m1, n2);
-            sad3.addSumAbsDiff(m1, n3);
-            sad4.addSumAbsDiff(m1, n4);
-
-            fenc += FENC_STRIDE;
-            fref1 += frefstride;
-            fref2 += frefstride;
-            fref3 += frefstride;
-            fref4 += frefstride;
-        }
-
-        sum1 += extend_low(sad1) + extend_high(sad1);
-        sum2 += extend_low(sad2) + extend_high(sad2);
-        sum3 += extend_low(sad3) + extend_high(sad3);
-        sum4 += extend_low(sad4) + extend_high(sad4);
-        sad1 = 0;
-        sad2 = 0;
-        sad3 = 0;
-        sad4 = 0;
-    }
-
-    while (row++ < ly)
-    {
-        m1.load_a(fenc);
-        n1.load(fref1);
-        n2.load(fref2);
-        n3.load(fref3);
-        n4.load(fref4);
-
-        sad1.addSumAbsDiff(m1, n1);
-        sad2.addSumAbsDiff(m1, n2);
-        sad3.addSumAbsDiff(m1, n3);
-        sad4.addSumAbsDiff(m1, n4);
-
-        m1.load_a(fenc + 16);
-        m1.cutoff(8);
-        n1.load(fref1 + 16);
-        n1.cutoff(8);
-        n2.load(fref2 + 16);
-        n2.cutoff(8);
-        n3.load(fref3 + 16);
-        n3.cutoff(8);
-        n4.load(fref4 + 16);
-        n4.cutoff(8);
-
-        sad1.addSumAbsDiff(m1, n1);
-        sad2.addSumAbsDiff(m1, n2);
-        sad3.addSumAbsDiff(m1, n3);
-        sad4.addSumAbsDiff(m1, n4);
-
-        fenc += FENC_STRIDE;
-        fref1 += frefstride;
-        fref2 += frefstride;
-        fref3 += frefstride;
-        fref4 += frefstride;
-    }
-
-    sum1 += extend_low(sad1) + extend_high(sad1);
-    sum2 += extend_low(sad2) + extend_high(sad2);
-    sum3 += extend_low(sad3) + extend_high(sad3);
-    sum4 += extend_low(sad4) + extend_high(sad4);
-
-    res[0] = horizontal_add(sum1);
-    res[1] = horizontal_add(sum2);
-    res[2] = horizontal_add(sum3);
-    res[3] = horizontal_add(sum4);
-}
-
-template<int ly>
 void sad_x4_32(pixel *fenc, pixel *fref1, pixel *fref2, pixel *fref3, pixel *fref4, intptr_t frefstride, int *res)
 {
     Vec16uc m1, n1, n2, n3, n4;


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