From 36d22d82aa202bb199967e9512281e9a53db42c9 Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Sun, 7 Apr 2024 21:33:14 +0200
Subject: Adding upstream version 115.7.0esr.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 third_party/aom/aom_dsp/x86/intrapred_ssse3.c | 1692 +++++++++++++++++++++++++
 1 file changed, 1692 insertions(+)
 create mode 100644 third_party/aom/aom_dsp/x86/intrapred_ssse3.c

(limited to 'third_party/aom/aom_dsp/x86/intrapred_ssse3.c')

diff --git a/third_party/aom/aom_dsp/x86/intrapred_ssse3.c b/third_party/aom/aom_dsp/x86/intrapred_ssse3.c
new file mode 100644
index 0000000000..807ed1770f
--- /dev/null
+++ b/third_party/aom/aom_dsp/x86/intrapred_ssse3.c
@@ -0,0 +1,1692 @@
+/*
+ * Copyright (c) 2017, Alliance for Open Media. All rights reserved
+ *
+ * This source code is subject to the terms of the BSD 2 Clause License and
+ * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
+ * was not distributed with this source code in the LICENSE file, you can
+ * obtain it at www.aomedia.org/license/software. If the Alliance for Open
+ * Media Patent License 1.0 was not distributed with this source code in the
+ * PATENTS file, you can obtain it at www.aomedia.org/license/patent.
+ */
+
+#include <tmmintrin.h>
+
+#include "config/aom_dsp_rtcd.h"
+
+#include "aom_dsp/intrapred_common.h"
+
+// -----------------------------------------------------------------------------
+// PAETH_PRED
+
+// Return 8 16-bit pixels in one row
+static INLINE __m128i paeth_8x1_pred(const __m128i *left, const __m128i *top,
+                                     const __m128i *topleft) {
+  const __m128i base = _mm_sub_epi16(_mm_add_epi16(*top, *left), *topleft);
+
+  __m128i pl = _mm_abs_epi16(_mm_sub_epi16(base, *left));
+  __m128i pt = _mm_abs_epi16(_mm_sub_epi16(base, *top));
+  __m128i ptl = _mm_abs_epi16(_mm_sub_epi16(base, *topleft));
+
+  __m128i mask1 = _mm_cmpgt_epi16(pl, pt);
+  mask1 = _mm_or_si128(mask1, _mm_cmpgt_epi16(pl, ptl));
+  __m128i mask2 = _mm_cmpgt_epi16(pt, ptl);
+
+  pl = _mm_andnot_si128(mask1, *left);
+
+  ptl = _mm_and_si128(mask2, *topleft);
+  pt = _mm_andnot_si128(mask2, *top);
+  pt = _mm_or_si128(pt, ptl);
+  pt = _mm_and_si128(mask1, pt);
+
+  return _mm_or_si128(pl, pt);
+}
+
+void aom_paeth_predictor_4x4_ssse3(uint8_t *dst, ptrdiff_t stride,
+                                   const uint8_t *above, const uint8_t *left) {
+  __m128i l = _mm_loadl_epi64((const __m128i *)left);
+  const __m128i t = _mm_loadl_epi64((const __m128i *)above);
+  const __m128i zero = _mm_setzero_si128();
+  const __m128i t16 = _mm_unpacklo_epi8(t, zero);
+  const __m128i tl16 = _mm_set1_epi16((uint16_t)above[-1]);
+  __m128i rep = _mm_set1_epi16(0x8000);
+  const __m128i one = _mm_set1_epi16(1);
+
+  int i;
+  for (i = 0; i < 4; ++i) {
+    const __m128i l16 = _mm_shuffle_epi8(l, rep);
+    const __m128i row = paeth_8x1_pred(&l16, &t16, &tl16);
+
+    *(uint32_t *)dst = _mm_cvtsi128_si32(_mm_packus_epi16(row, row));
+    dst += stride;
+    rep = _mm_add_epi16(rep, one);
+  }
+}
+
+void aom_paeth_predictor_4x8_ssse3(uint8_t *dst, ptrdiff_t stride,
+                                   const uint8_t *above, const uint8_t *left) {
+  __m128i l = _mm_loadl_epi64((const __m128i *)left);
+  const __m128i t = _mm_loadl_epi64((const __m128i *)above);
+  const __m128i zero = _mm_setzero_si128();
+  const __m128i t16 = _mm_unpacklo_epi8(t, zero);
+  const __m128i tl16 = _mm_set1_epi16((uint16_t)above[-1]);
+  __m128i rep = _mm_set1_epi16(0x8000);
+  const __m128i one = _mm_set1_epi16(1);
+
+  int i;
+  for (i = 0; i < 8; ++i) {
+    const __m128i l16 = _mm_shuffle_epi8(l, rep);
+    const __m128i row = paeth_8x1_pred(&l16, &t16, &tl16);
+
+    *(uint32_t *)dst = _mm_cvtsi128_si32(_mm_packus_epi16(row, row));
+    dst += stride;
+    rep = _mm_add_epi16(rep, one);
+  }
+}
+
+void aom_paeth_predictor_4x16_ssse3(uint8_t *dst, ptrdiff_t stride,
+                                    const uint8_t *above, const uint8_t *left) {
+  __m128i l = _mm_load_si128((const __m128i *)left);
+  const __m128i t = _mm_cvtsi32_si128(((const uint32_t *)above)[0]);
+  const __m128i zero = _mm_setzero_si128();
+  const __m128i t16 = _mm_unpacklo_epi8(t, zero);
+  const __m128i tl16 = _mm_set1_epi16((uint16_t)above[-1]);
+  __m128i rep = _mm_set1_epi16(0x8000);
+  const __m128i one = _mm_set1_epi16(1);
+
+  for (int i = 0; i < 16; ++i) {
+    const __m128i l16 = _mm_shuffle_epi8(l, rep);
+    const __m128i row = paeth_8x1_pred(&l16, &t16, &tl16);
+
+    *(uint32_t *)dst = _mm_cvtsi128_si32(_mm_packus_epi16(row, row));
+    dst += stride;
+    rep = _mm_add_epi16(rep, one);
+  }
+}
+
+void aom_paeth_predictor_8x4_ssse3(uint8_t *dst, ptrdiff_t stride,
+                                   const uint8_t *above, const uint8_t *left) {
+  __m128i l = _mm_loadl_epi64((const __m128i *)left);
+  const __m128i t = _mm_loadl_epi64((const __m128i *)above);
+  const __m128i zero = _mm_setzero_si128();
+  const __m128i t16 = _mm_unpacklo_epi8(t, zero);
+  const __m128i tl16 = _mm_set1_epi16((uint16_t)above[-1]);
+  __m128i rep = _mm_set1_epi16(0x8000);
+  const __m128i one = _mm_set1_epi16(1);
+
+  int i;
+  for (i = 0; i < 4; ++i) {
+    const __m128i l16 = _mm_shuffle_epi8(l, rep);
+    const __m128i row = paeth_8x1_pred(&l16, &t16, &tl16);
+
+    _mm_storel_epi64((__m128i *)dst, _mm_packus_epi16(row, row));
+    dst += stride;
+    rep = _mm_add_epi16(rep, one);
+  }
+}
+
+void aom_paeth_predictor_8x8_ssse3(uint8_t *dst, ptrdiff_t stride,
+                                   const uint8_t *above, const uint8_t *left) {
+  __m128i l = _mm_loadl_epi64((const __m128i *)left);
+  const __m128i t = _mm_loadl_epi64((const __m128i *)above);
+  const __m128i zero = _mm_setzero_si128();
+  const __m128i t16 = _mm_unpacklo_epi8(t, zero);
+  const __m128i tl16 = _mm_set1_epi16((uint16_t)above[-1]);
+  __m128i rep = _mm_set1_epi16(0x8000);
+  const __m128i one = _mm_set1_epi16(1);
+
+  int i;
+  for (i = 0; i < 8; ++i) {
+    const __m128i l16 = _mm_shuffle_epi8(l, rep);
+    const __m128i row = paeth_8x1_pred(&l16, &t16, &tl16);
+
+    _mm_storel_epi64((__m128i *)dst, _mm_packus_epi16(row, row));
+    dst += stride;
+    rep = _mm_add_epi16(rep, one);
+  }
+}
+
+void aom_paeth_predictor_8x16_ssse3(uint8_t *dst, ptrdiff_t stride,
+                                    const uint8_t *above, const uint8_t *left) {
+  __m128i l = _mm_load_si128((const __m128i *)left);
+  const __m128i t = _mm_loadl_epi64((const __m128i *)above);
+  const __m128i zero = _mm_setzero_si128();
+  const __m128i t16 = _mm_unpacklo_epi8(t, zero);
+  const __m128i tl16 = _mm_set1_epi16((uint16_t)above[-1]);
+  __m128i rep = _mm_set1_epi16(0x8000);
+  const __m128i one = _mm_set1_epi16(1);
+
+  int i;
+  for (i = 0; i < 16; ++i) {
+    const __m128i l16 = _mm_shuffle_epi8(l, rep);
+    const __m128i row = paeth_8x1_pred(&l16, &t16, &tl16);
+
+    _mm_storel_epi64((__m128i *)dst, _mm_packus_epi16(row, row));
+    dst += stride;
+    rep = _mm_add_epi16(rep, one);
+  }
+}
+
+void aom_paeth_predictor_8x32_ssse3(uint8_t *dst, ptrdiff_t stride,
+                                    const uint8_t *above, const uint8_t *left) {
+  const __m128i t = _mm_loadl_epi64((const __m128i *)above);
+  const __m128i zero = _mm_setzero_si128();
+  const __m128i t16 = _mm_unpacklo_epi8(t, zero);
+  const __m128i tl16 = _mm_set1_epi16((uint16_t)above[-1]);
+  const __m128i one = _mm_set1_epi16(1);
+
+  for (int j = 0; j < 2; ++j) {
+    const __m128i l = _mm_load_si128((const __m128i *)(left + j * 16));
+    __m128i rep = _mm_set1_epi16(0x8000);
+    for (int i = 0; i < 16; ++i) {
+      const __m128i l16 = _mm_shuffle_epi8(l, rep);
+      const __m128i row = paeth_8x1_pred(&l16, &t16, &tl16);
+
+      _mm_storel_epi64((__m128i *)dst, _mm_packus_epi16(row, row));
+      dst += stride;
+      rep = _mm_add_epi16(rep, one);
+    }
+  }
+}
+
+// Return 16 8-bit pixels in one row
+static INLINE __m128i paeth_16x1_pred(const __m128i *left, const __m128i *top0,
+                                      const __m128i *top1,
+                                      const __m128i *topleft) {
+  const __m128i p0 = paeth_8x1_pred(left, top0, topleft);
+  const __m128i p1 = paeth_8x1_pred(left, top1, topleft);
+  return _mm_packus_epi16(p0, p1);
+}
+
+void aom_paeth_predictor_16x4_ssse3(uint8_t *dst, ptrdiff_t stride,
+                                    const uint8_t *above, const uint8_t *left) {
+  __m128i l = _mm_cvtsi32_si128(((const uint32_t *)left)[0]);
+  const __m128i t = _mm_load_si128((const __m128i *)above);
+  const __m128i zero = _mm_setzero_si128();
+  const __m128i top0 = _mm_unpacklo_epi8(t, zero);
+  const __m128i top1 = _mm_unpackhi_epi8(t, zero);
+  const __m128i tl16 = _mm_set1_epi16((uint16_t)above[-1]);
+  __m128i rep = _mm_set1_epi16(0x8000);
+  const __m128i one = _mm_set1_epi16(1);
+
+  for (int i = 0; i < 4; ++i) {
+    const __m128i l16 = _mm_shuffle_epi8(l, rep);
+    const __m128i row = paeth_16x1_pred(&l16, &top0, &top1, &tl16);
+
+    _mm_store_si128((__m128i *)dst, row);
+    dst += stride;
+    rep = _mm_add_epi16(rep, one);
+  }
+}
+
+void aom_paeth_predictor_16x8_ssse3(uint8_t *dst, ptrdiff_t stride,
+                                    const uint8_t *above, const uint8_t *left) {
+  __m128i l = _mm_loadl_epi64((const __m128i *)left);
+  const __m128i t = _mm_load_si128((const __m128i *)above);
+  const __m128i zero = _mm_setzero_si128();
+  const __m128i top0 = _mm_unpacklo_epi8(t, zero);
+  const __m128i top1 = _mm_unpackhi_epi8(t, zero);
+  const __m128i tl16 = _mm_set1_epi16((uint16_t)above[-1]);
+  __m128i rep = _mm_set1_epi16(0x8000);
+  const __m128i one = _mm_set1_epi16(1);
+
+  int i;
+  for (i = 0; i < 8; ++i) {
+    const __m128i l16 = _mm_shuffle_epi8(l, rep);
+    const __m128i row = paeth_16x1_pred(&l16, &top0, &top1, &tl16);
+
+    _mm_store_si128((__m128i *)dst, row);
+    dst += stride;
+    rep = _mm_add_epi16(rep, one);
+  }
+}
+
+void aom_paeth_predictor_16x16_ssse3(uint8_t *dst, ptrdiff_t stride,
+                                     const uint8_t *above,
+                                     const uint8_t *left) {
+  __m128i l = _mm_load_si128((const __m128i *)left);
+  const __m128i t = _mm_load_si128((const __m128i *)above);
+  const __m128i zero = _mm_setzero_si128();
+  const __m128i top0 = _mm_unpacklo_epi8(t, zero);
+  const __m128i top1 = _mm_unpackhi_epi8(t, zero);
+  const __m128i tl16 = _mm_set1_epi16((uint16_t)above[-1]);
+  __m128i rep = _mm_set1_epi16(0x8000);
+  const __m128i one = _mm_set1_epi16(1);
+
+  int i;
+  for (i = 0; i < 16; ++i) {
+    const __m128i l16 = _mm_shuffle_epi8(l, rep);
+    const __m128i row = paeth_16x1_pred(&l16, &top0, &top1, &tl16);
+
+    _mm_store_si128((__m128i *)dst, row);
+    dst += stride;
+    rep = _mm_add_epi16(rep, one);
+  }
+}
+
+void aom_paeth_predictor_16x32_ssse3(uint8_t *dst, ptrdiff_t stride,
+                                     const uint8_t *above,
+                                     const uint8_t *left) {
+  __m128i l = _mm_load_si128((const __m128i *)left);
+  const __m128i t = _mm_load_si128((const __m128i *)above);
+  const __m128i zero = _mm_setzero_si128();
+  const __m128i top0 = _mm_unpacklo_epi8(t, zero);
+  const __m128i top1 = _mm_unpackhi_epi8(t, zero);
+  const __m128i tl16 = _mm_set1_epi16((uint16_t)above[-1]);
+  __m128i rep = _mm_set1_epi16(0x8000);
+  const __m128i one = _mm_set1_epi16(1);
+  __m128i l16;
+
+  int i;
+  for (i = 0; i < 16; ++i) {
+    l16 = _mm_shuffle_epi8(l, rep);
+    const __m128i row = paeth_16x1_pred(&l16, &top0, &top1, &tl16);
+
+    _mm_store_si128((__m128i *)dst, row);
+    dst += stride;
+    rep = _mm_add_epi16(rep, one);
+  }
+
+  l = _mm_load_si128((const __m128i *)(left + 16));
+  rep = _mm_set1_epi16(0x8000);
+  for (i = 0; i < 16; ++i) {
+    l16 = _mm_shuffle_epi8(l, rep);
+    const __m128i row = paeth_16x1_pred(&l16, &top0, &top1, &tl16);
+
+    _mm_store_si128((__m128i *)dst, row);
+    dst += stride;
+    rep = _mm_add_epi16(rep, one);
+  }
+}
+
+void aom_paeth_predictor_16x64_ssse3(uint8_t *dst, ptrdiff_t stride,
+                                     const uint8_t *above,
+                                     const uint8_t *left) {
+  const __m128i t = _mm_load_si128((const __m128i *)above);
+  const __m128i zero = _mm_setzero_si128();
+  const __m128i top0 = _mm_unpacklo_epi8(t, zero);
+  const __m128i top1 = _mm_unpackhi_epi8(t, zero);
+  const __m128i tl16 = _mm_set1_epi16((uint16_t)above[-1]);
+  const __m128i one = _mm_set1_epi16(1);
+
+  for (int j = 0; j < 4; ++j) {
+    const __m128i l = _mm_load_si128((const __m128i *)(left + j * 16));
+    __m128i rep = _mm_set1_epi16(0x8000);
+    for (int i = 0; i < 16; ++i) {
+      const __m128i l16 = _mm_shuffle_epi8(l, rep);
+      const __m128i row = paeth_16x1_pred(&l16, &top0, &top1, &tl16);
+      _mm_store_si128((__m128i *)dst, row);
+      dst += stride;
+      rep = _mm_add_epi16(rep, one);
+    }
+  }
+}
+
+void aom_paeth_predictor_32x8_ssse3(uint8_t *dst, ptrdiff_t stride,
+                                    const uint8_t *above, const uint8_t *left) {
+  const __m128i a = _mm_load_si128((const __m128i *)above);
+  const __m128i b = _mm_load_si128((const __m128i *)(above + 16));
+  const __m128i zero = _mm_setzero_si128();
+  const __m128i al = _mm_unpacklo_epi8(a, zero);
+  const __m128i ah = _mm_unpackhi_epi8(a, zero);
+  const __m128i bl = _mm_unpacklo_epi8(b, zero);
+  const __m128i bh = _mm_unpackhi_epi8(b, zero);
+
+  const __m128i tl16 = _mm_set1_epi16((uint16_t)above[-1]);
+  __m128i rep = _mm_set1_epi16(0x8000);
+  const __m128i one = _mm_set1_epi16(1);
+  const __m128i l = _mm_loadl_epi64((const __m128i *)left);
+  __m128i l16;
+
+  for (int i = 0; i < 8; ++i) {
+    l16 = _mm_shuffle_epi8(l, rep);
+    const __m128i r32l = paeth_16x1_pred(&l16, &al, &ah, &tl16);
+    const __m128i r32h = paeth_16x1_pred(&l16, &bl, &bh, &tl16);
+
+    _mm_store_si128((__m128i *)dst, r32l);
+    _mm_store_si128((__m128i *)(dst + 16), r32h);
+    dst += stride;
+    rep = _mm_add_epi16(rep, one);
+  }
+}
+
+void aom_paeth_predictor_32x16_ssse3(uint8_t *dst, ptrdiff_t stride,
+                                     const uint8_t *above,
+                                     const uint8_t *left) {
+  const __m128i a = _mm_load_si128((const __m128i *)above);
+  const __m128i b = _mm_load_si128((const __m128i *)(above + 16));
+  const __m128i zero = _mm_setzero_si128();
+  const __m128i al = _mm_unpacklo_epi8(a, zero);
+  const __m128i ah = _mm_unpackhi_epi8(a, zero);
+  const __m128i bl = _mm_unpacklo_epi8(b, zero);
+  const __m128i bh = _mm_unpackhi_epi8(b, zero);
+
+  const __m128i tl16 = _mm_set1_epi16((uint16_t)above[-1]);
+  __m128i rep = _mm_set1_epi16(0x8000);
+  const __m128i one = _mm_set1_epi16(1);
+  __m128i l = _mm_load_si128((const __m128i *)left);
+  __m128i l16;
+
+  int i;
+  for (i = 0; i < 16; ++i) {
+    l16 = _mm_shuffle_epi8(l, rep);
+    const __m128i r32l = paeth_16x1_pred(&l16, &al, &ah, &tl16);
+    const __m128i r32h = paeth_16x1_pred(&l16, &bl, &bh, &tl16);
+
+    _mm_store_si128((__m128i *)dst, r32l);
+    _mm_store_si128((__m128i *)(dst + 16), r32h);
+    dst += stride;
+    rep = _mm_add_epi16(rep, one);
+  }
+}
+
+void aom_paeth_predictor_32x32_ssse3(uint8_t *dst, ptrdiff_t stride,
+                                     const uint8_t *above,
+                                     const uint8_t *left) {
+  const __m128i a = _mm_load_si128((const __m128i *)above);
+  const __m128i b = _mm_load_si128((const __m128i *)(above + 16));
+  const __m128i zero = _mm_setzero_si128();
+  const __m128i al = _mm_unpacklo_epi8(a, zero);
+  const __m128i ah = _mm_unpackhi_epi8(a, zero);
+  const __m128i bl = _mm_unpacklo_epi8(b, zero);
+  const __m128i bh = _mm_unpackhi_epi8(b, zero);
+
+  const __m128i tl16 = _mm_set1_epi16((uint16_t)above[-1]);
+  __m128i rep = _mm_set1_epi16(0x8000);
+  const __m128i one = _mm_set1_epi16(1);
+  __m128i l = _mm_load_si128((const __m128i *)left);
+  __m128i l16;
+
+  int i;
+  for (i = 0; i < 16; ++i) {
+    l16 = _mm_shuffle_epi8(l, rep);
+    const __m128i r32l = paeth_16x1_pred(&l16, &al, &ah, &tl16);
+    const __m128i r32h = paeth_16x1_pred(&l16, &bl, &bh, &tl16);
+
+    _mm_store_si128((__m128i *)dst, r32l);
+    _mm_store_si128((__m128i *)(dst + 16), r32h);
+    dst += stride;
+    rep = _mm_add_epi16(rep, one);
+  }
+
+  rep = _mm_set1_epi16(0x8000);
+  l = _mm_load_si128((const __m128i *)(left + 16));
+  for (i = 0; i < 16; ++i) {
+    l16 = _mm_shuffle_epi8(l, rep);
+    const __m128i r32l = paeth_16x1_pred(&l16, &al, &ah, &tl16);
+    const __m128i r32h = paeth_16x1_pred(&l16, &bl, &bh, &tl16);
+
+    _mm_store_si128((__m128i *)dst, r32l);
+    _mm_store_si128((__m128i *)(dst + 16), r32h);
+    dst += stride;
+    rep = _mm_add_epi16(rep, one);
+  }
+}
+
+void aom_paeth_predictor_32x64_ssse3(uint8_t *dst, ptrdiff_t stride,
+                                     const uint8_t *above,
+                                     const uint8_t *left) {
+  const __m128i a = _mm_load_si128((const __m128i *)above);
+  const __m128i b = _mm_load_si128((const __m128i *)(above + 16));
+  const __m128i zero = _mm_setzero_si128();
+  const __m128i al = _mm_unpacklo_epi8(a, zero);
+  const __m128i ah = _mm_unpackhi_epi8(a, zero);
+  const __m128i bl = _mm_unpacklo_epi8(b, zero);
+  const __m128i bh = _mm_unpackhi_epi8(b, zero);
+
+  const __m128i tl16 = _mm_set1_epi16((uint16_t)above[-1]);
+  const __m128i one = _mm_set1_epi16(1);
+  __m128i l16;
+
+  int i, j;
+  for (j = 0; j < 4; ++j) {
+    const __m128i l = _mm_load_si128((const __m128i *)(left + j * 16));
+    __m128i rep = _mm_set1_epi16(0x8000);
+    for (i = 0; i < 16; ++i) {
+      l16 = _mm_shuffle_epi8(l, rep);
+      const __m128i r32l = paeth_16x1_pred(&l16, &al, &ah, &tl16);
+      const __m128i r32h = paeth_16x1_pred(&l16, &bl, &bh, &tl16);
+
+      _mm_store_si128((__m128i *)dst, r32l);
+      _mm_store_si128((__m128i *)(dst + 16), r32h);
+      dst += stride;
+      rep = _mm_add_epi16(rep, one);
+    }
+  }
+}
+
+void aom_paeth_predictor_64x32_ssse3(uint8_t *dst, ptrdiff_t stride,
+                                     const uint8_t *above,
+                                     const uint8_t *left) {
+  const __m128i a = _mm_load_si128((const __m128i *)above);
+  const __m128i b = _mm_load_si128((const __m128i *)(above + 16));
+  const __m128i c = _mm_load_si128((const __m128i *)(above + 32));
+  const __m128i d = _mm_load_si128((const __m128i *)(above + 48));
+  const __m128i zero = _mm_setzero_si128();
+  const __m128i al = _mm_unpacklo_epi8(a, zero);
+  const __m128i ah = _mm_unpackhi_epi8(a, zero);
+  const __m128i bl = _mm_unpacklo_epi8(b, zero);
+  const __m128i bh = _mm_unpackhi_epi8(b, zero);
+  const __m128i cl = _mm_unpacklo_epi8(c, zero);
+  const __m128i ch = _mm_unpackhi_epi8(c, zero);
+  const __m128i dl = _mm_unpacklo_epi8(d, zero);
+  const __m128i dh = _mm_unpackhi_epi8(d, zero);
+
+  const __m128i tl16 = _mm_set1_epi16((uint16_t)above[-1]);
+  const __m128i one = _mm_set1_epi16(1);
+  __m128i l16;
+
+  int i, j;
+  for (j = 0; j < 2; ++j) {
+    const __m128i l = _mm_load_si128((const __m128i *)(left + j * 16));
+    __m128i rep = _mm_set1_epi16(0x8000);
+    for (i = 0; i < 16; ++i) {
+      l16 = _mm_shuffle_epi8(l, rep);
+      const __m128i r0 = paeth_16x1_pred(&l16, &al, &ah, &tl16);
+      const __m128i r1 = paeth_16x1_pred(&l16, &bl, &bh, &tl16);
+      const __m128i r2 = paeth_16x1_pred(&l16, &cl, &ch, &tl16);
+      const __m128i r3 = paeth_16x1_pred(&l16, &dl, &dh, &tl16);
+
+      _mm_store_si128((__m128i *)dst, r0);
+      _mm_store_si128((__m128i *)(dst + 16), r1);
+      _mm_store_si128((__m128i *)(dst + 32), r2);
+      _mm_store_si128((__m128i *)(dst + 48), r3);
+      dst += stride;
+      rep = _mm_add_epi16(rep, one);
+    }
+  }
+}
+
+void aom_paeth_predictor_64x64_ssse3(uint8_t *dst, ptrdiff_t stride,
+                                     const uint8_t *above,
+                                     const uint8_t *left) {
+  const __m128i a = _mm_load_si128((const __m128i *)above);
+  const __m128i b = _mm_load_si128((const __m128i *)(above + 16));
+  const __m128i c = _mm_load_si128((const __m128i *)(above + 32));
+  const __m128i d = _mm_load_si128((const __m128i *)(above + 48));
+  const __m128i zero = _mm_setzero_si128();
+  const __m128i al = _mm_unpacklo_epi8(a, zero);
+  const __m128i ah = _mm_unpackhi_epi8(a, zero);
+  const __m128i bl = _mm_unpacklo_epi8(b, zero);
+  const __m128i bh = _mm_unpackhi_epi8(b, zero);
+  const __m128i cl = _mm_unpacklo_epi8(c, zero);
+  const __m128i ch = _mm_unpackhi_epi8(c, zero);
+  const __m128i dl = _mm_unpacklo_epi8(d, zero);
+  const __m128i dh = _mm_unpackhi_epi8(d, zero);
+
+  const __m128i tl16 = _mm_set1_epi16((uint16_t)above[-1]);
+  const __m128i one = _mm_set1_epi16(1);
+  __m128i l16;
+
+  int i, j;
+  for (j = 0; j < 4; ++j) {
+    const __m128i l = _mm_load_si128((const __m128i *)(left + j * 16));
+    __m128i rep = _mm_set1_epi16(0x8000);
+    for (i = 0; i < 16; ++i) {
+      l16 = _mm_shuffle_epi8(l, rep);
+      const __m128i r0 = paeth_16x1_pred(&l16, &al, &ah, &tl16);
+      const __m128i r1 = paeth_16x1_pred(&l16, &bl, &bh, &tl16);
+      const __m128i r2 = paeth_16x1_pred(&l16, &cl, &ch, &tl16);
+      const __m128i r3 = paeth_16x1_pred(&l16, &dl, &dh, &tl16);
+
+      _mm_store_si128((__m128i *)dst, r0);
+      _mm_store_si128((__m128i *)(dst + 16), r1);
+      _mm_store_si128((__m128i *)(dst + 32), r2);
+      _mm_store_si128((__m128i *)(dst + 48), r3);
+      dst += stride;
+      rep = _mm_add_epi16(rep, one);
+    }
+  }
+}
+
+void aom_paeth_predictor_64x16_ssse3(uint8_t *dst, ptrdiff_t stride,
+                                     const uint8_t *above,
+                                     const uint8_t *left) {
+  const __m128i a = _mm_load_si128((const __m128i *)above);
+  const __m128i b = _mm_load_si128((const __m128i *)(above + 16));
+  const __m128i c = _mm_load_si128((const __m128i *)(above + 32));
+  const __m128i d = _mm_load_si128((const __m128i *)(above + 48));
+  const __m128i zero = _mm_setzero_si128();
+  const __m128i al = _mm_unpacklo_epi8(a, zero);
+  const __m128i ah = _mm_unpackhi_epi8(a, zero);
+  const __m128i bl = _mm_unpacklo_epi8(b, zero);
+  const __m128i bh = _mm_unpackhi_epi8(b, zero);
+  const __m128i cl = _mm_unpacklo_epi8(c, zero);
+  const __m128i ch = _mm_unpackhi_epi8(c, zero);
+  const __m128i dl = _mm_unpacklo_epi8(d, zero);
+  const __m128i dh = _mm_unpackhi_epi8(d, zero);
+
+  const __m128i tl16 = _mm_set1_epi16((uint16_t)above[-1]);
+  const __m128i one = _mm_set1_epi16(1);
+  __m128i l16;
+
+  int i;
+  const __m128i l = _mm_load_si128((const __m128i *)left);
+  __m128i rep = _mm_set1_epi16(0x8000);
+  for (i = 0; i < 16; ++i) {
+    l16 = _mm_shuffle_epi8(l, rep);
+    const __m128i r0 = paeth_16x1_pred(&l16, &al, &ah, &tl16);
+    const __m128i r1 = paeth_16x1_pred(&l16, &bl, &bh, &tl16);
+    const __m128i r2 = paeth_16x1_pred(&l16, &cl, &ch, &tl16);
+    const __m128i r3 = paeth_16x1_pred(&l16, &dl, &dh, &tl16);
+
+    _mm_store_si128((__m128i *)dst, r0);
+    _mm_store_si128((__m128i *)(dst + 16), r1);
+    _mm_store_si128((__m128i *)(dst + 32), r2);
+    _mm_store_si128((__m128i *)(dst + 48), r3);
+    dst += stride;
+    rep = _mm_add_epi16(rep, one);
+  }
+}
+
+// -----------------------------------------------------------------------------
+// SMOOTH_PRED
+
+// pixels[0]: above and below_pred interleave vector
+// pixels[1]: left vector
+// pixels[2]: right_pred vector
+static INLINE void load_pixel_w4(const uint8_t *above, const uint8_t *left,
+                                 int height, __m128i *pixels) {
+  __m128i d = _mm_cvtsi32_si128(((const uint32_t *)above)[0]);
+  if (height == 4)
+    pixels[1] = _mm_cvtsi32_si128(((const uint32_t *)left)[0]);
+  else if (height == 8)
+    pixels[1] = _mm_loadl_epi64(((const __m128i *)left));
+  else
+    pixels[1] = _mm_loadu_si128(((const __m128i *)left));
+
+  pixels[2] = _mm_set1_epi16((uint16_t)above[3]);
+
+  const __m128i bp = _mm_set1_epi16((uint16_t)left[height - 1]);
+  const __m128i zero = _mm_setzero_si128();
+  d = _mm_unpacklo_epi8(d, zero);
+  pixels[0] = _mm_unpacklo_epi16(d, bp);
+}
+
+// weight_h[0]: weight_h vector
+// weight_h[1]: scale - weight_h vector
+// weight_h[2]: same as [0], second half for height = 16 only
+// weight_h[3]: same as [1], second half for height = 16 only
+// weight_w[0]: weights_w and scale - weights_w interleave vector
+static INLINE void load_weight_w4(const uint8_t *weight_array, int height,
+                                  __m128i *weight_h, __m128i *weight_w) {
+  const __m128i zero = _mm_setzero_si128();
+  const __m128i d = _mm_set1_epi16((uint16_t)(1 << sm_weight_log2_scale));
+  const __m128i t = _mm_cvtsi32_si128(((const uint32_t *)weight_array)[1]);
+  weight_h[0] = _mm_unpacklo_epi8(t, zero);
+  weight_h[1] = _mm_sub_epi16(d, weight_h[0]);
+  weight_w[0] = _mm_unpacklo_epi16(weight_h[0], weight_h[1]);
+
+  if (height == 8) {
+    const __m128i weight = _mm_loadl_epi64((const __m128i *)&weight_array[8]);
+    weight_h[0] = _mm_unpacklo_epi8(weight, zero);
+    weight_h[1] = _mm_sub_epi16(d, weight_h[0]);
+  } else if (height == 16) {
+    const __m128i weight = _mm_loadu_si128((const __m128i *)&weight_array[16]);
+    weight_h[0] = _mm_unpacklo_epi8(weight, zero);
+    weight_h[1] = _mm_sub_epi16(d, weight_h[0]);
+    weight_h[2] = _mm_unpackhi_epi8(weight, zero);
+    weight_h[3] = _mm_sub_epi16(d, weight_h[2]);
+  }
+}
+
+static INLINE void smooth_pred_4xh(const __m128i *pixel, const __m128i *wh,
+                                   const __m128i *ww, int h, uint8_t *dst,
+                                   ptrdiff_t stride, int second_half) {
+  const __m128i round = _mm_set1_epi32((1 << sm_weight_log2_scale));
+  const __m128i one = _mm_set1_epi16(1);
+  const __m128i inc = _mm_set1_epi16(0x202);
+  const __m128i gat = _mm_set1_epi32(0xc080400);
+  __m128i rep = second_half ? _mm_set1_epi16(0x8008) : _mm_set1_epi16(0x8000);
+  __m128i d = _mm_set1_epi16(0x100);
+
+  for (int i = 0; i < h; ++i) {
+    const __m128i wg_wg = _mm_shuffle_epi8(wh[0], d);
+    const __m128i sc_sc = _mm_shuffle_epi8(wh[1], d);
+    const __m128i wh_sc = _mm_unpacklo_epi16(wg_wg, sc_sc);
+    __m128i s = _mm_madd_epi16(pixel[0], wh_sc);
+
+    __m128i b = _mm_shuffle_epi8(pixel[1], rep);
+    b = _mm_unpacklo_epi16(b, pixel[2]);
+    __m128i sum = _mm_madd_epi16(b, ww[0]);
+
+    sum = _mm_add_epi32(s, sum);
+    sum = _mm_add_epi32(sum, round);
+    sum = _mm_srai_epi32(sum, 1 + sm_weight_log2_scale);
+
+    sum = _mm_shuffle_epi8(sum, gat);
+    *(uint32_t *)dst = _mm_cvtsi128_si32(sum);
+    dst += stride;
+
+    rep = _mm_add_epi16(rep, one);
+    d = _mm_add_epi16(d, inc);
+  }
+}
+
+void aom_smooth_predictor_4x4_ssse3(uint8_t *dst, ptrdiff_t stride,
+                                    const uint8_t *above, const uint8_t *left) {
+  __m128i pixels[3];
+  load_pixel_w4(above, left, 4, pixels);
+
+  __m128i wh[4], ww[2];
+  load_weight_w4(sm_weight_arrays, 4, wh, ww);
+
+  smooth_pred_4xh(pixels, wh, ww, 4, dst, stride, 0);
+}
+
+void aom_smooth_predictor_4x8_ssse3(uint8_t *dst, ptrdiff_t stride,
+                                    const uint8_t *above, const uint8_t *left) {
+  __m128i pixels[3];
+  load_pixel_w4(above, left, 8, pixels);
+
+  __m128i wh[4], ww[2];
+  load_weight_w4(sm_weight_arrays, 8, wh, ww);
+
+  smooth_pred_4xh(pixels, wh, ww, 8, dst, stride, 0);
+}
+
+void aom_smooth_predictor_4x16_ssse3(uint8_t *dst, ptrdiff_t stride,
+                                     const uint8_t *above,
+                                     const uint8_t *left) {
+  __m128i pixels[3];
+  load_pixel_w4(above, left, 16, pixels);
+
+  __m128i wh[4], ww[2];
+  load_weight_w4(sm_weight_arrays, 16, wh, ww);
+
+  smooth_pred_4xh(pixels, wh, ww, 8, dst, stride, 0);
+  dst += stride << 3;
+  smooth_pred_4xh(pixels, &wh[2], ww, 8, dst, stride, 1);
+}
+
+// pixels[0]: above and below_pred interleave vector, first half
+// pixels[1]: above and below_pred interleave vector, second half
+// pixels[2]: left vector
+// pixels[3]: right_pred vector
+// pixels[4]: above and below_pred interleave vector, first half
+// pixels[5]: above and below_pred interleave vector, second half
+// pixels[6]: left vector + 16
+// pixels[7]: right_pred vector
+static INLINE void load_pixel_w8(const uint8_t *above, const uint8_t *left,
+                                 int height, __m128i *pixels) {
+  const __m128i zero = _mm_setzero_si128();
+  const __m128i bp = _mm_set1_epi16((uint16_t)left[height - 1]);
+  __m128i d = _mm_loadl_epi64((const __m128i *)above);
+  d = _mm_unpacklo_epi8(d, zero);
+  pixels[0] = _mm_unpacklo_epi16(d, bp);
+  pixels[1] = _mm_unpackhi_epi16(d, bp);
+
+  pixels[3] = _mm_set1_epi16((uint16_t)above[7]);
+
+  if (height == 4) {
+    pixels[2] = _mm_cvtsi32_si128(((const uint32_t *)left)[0]);
+  } else if (height == 8) {
+    pixels[2] = _mm_loadl_epi64((const __m128i *)left);
+  } else if (height == 16) {
+    pixels[2] = _mm_load_si128((const __m128i *)left);
+  } else {
+    pixels[2] = _mm_load_si128((const __m128i *)left);
+    pixels[4] = pixels[0];
+    pixels[5] = pixels[1];
+    pixels[6] = _mm_load_si128((const __m128i *)(left + 16));
+    pixels[7] = pixels[3];
+  }
+}
+
+// weight_h[0]: weight_h vector
+// weight_h[1]: scale - weight_h vector
+// weight_h[2]: same as [0], offset 8
+// weight_h[3]: same as [1], offset 8
+// weight_h[4]: same as [0], offset 16
+// weight_h[5]: same as [1], offset 16
+// weight_h[6]: same as [0], offset 24
+// weight_h[7]: same as [1], offset 24
+// weight_w[0]: weights_w and scale - weights_w interleave vector, first half
+// weight_w[1]: weights_w and scale - weights_w interleave vector, second half
+static INLINE void load_weight_w8(const uint8_t *weight_array, int height,
+                                  __m128i *weight_h, __m128i *weight_w) {
+  const __m128i zero = _mm_setzero_si128();
+  const int we_offset = height < 8 ? 4 : 8;
+  __m128i we = _mm_loadu_si128((const __m128i *)&weight_array[we_offset]);
+  weight_h[0] = _mm_unpacklo_epi8(we, zero);
+  const __m128i d = _mm_set1_epi16((uint16_t)(1 << sm_weight_log2_scale));
+  weight_h[1] = _mm_sub_epi16(d, weight_h[0]);
+
+  if (height == 4) {
+    we = _mm_srli_si128(we, 4);
+    __m128i tmp1 = _mm_unpacklo_epi8(we, zero);
+    __m128i tmp2 = _mm_sub_epi16(d, tmp1);
+    weight_w[0] = _mm_unpacklo_epi16(tmp1, tmp2);
+    weight_w[1] = _mm_unpackhi_epi16(tmp1, tmp2);
+  } else {
+    weight_w[0] = _mm_unpacklo_epi16(weight_h[0], weight_h[1]);
+    weight_w[1] = _mm_unpackhi_epi16(weight_h[0], weight_h[1]);
+  }
+
+  if (height == 16) {
+    we = _mm_loadu_si128((const __m128i *)&weight_array[16]);
+    weight_h[0] = _mm_unpacklo_epi8(we, zero);
+    weight_h[1] = _mm_sub_epi16(d, weight_h[0]);
+    weight_h[2] = _mm_unpackhi_epi8(we, zero);
+    weight_h[3] = _mm_sub_epi16(d, weight_h[2]);
+  } else if (height == 32) {
+    const __m128i weight_lo =
+        _mm_loadu_si128((const __m128i *)&weight_array[32]);
+    weight_h[0] = _mm_unpacklo_epi8(weight_lo, zero);
+    weight_h[1] = _mm_sub_epi16(d, weight_h[0]);
+    weight_h[2] = _mm_unpackhi_epi8(weight_lo, zero);
+    weight_h[3] = _mm_sub_epi16(d, weight_h[2]);
+    const __m128i weight_hi =
+        _mm_loadu_si128((const __m128i *)&weight_array[32 + 16]);
+    weight_h[4] = _mm_unpacklo_epi8(weight_hi, zero);
+    weight_h[5] = _mm_sub_epi16(d, weight_h[4]);
+    weight_h[6] = _mm_unpackhi_epi8(weight_hi, zero);
+    weight_h[7] = _mm_sub_epi16(d, weight_h[6]);
+  }
+}
+
+static INLINE void smooth_pred_8xh(const __m128i *pixels, const __m128i *wh,
+                                   const __m128i *ww, int h, uint8_t *dst,
+                                   ptrdiff_t stride, int second_half) {
+  const __m128i round = _mm_set1_epi32((1 << sm_weight_log2_scale));
+  const __m128i one = _mm_set1_epi16(1);
+  const __m128i inc = _mm_set1_epi16(0x202);
+  const __m128i gat = _mm_set_epi32(0, 0, 0xe0c0a08, 0x6040200);
+
+  __m128i rep = second_half ? _mm_set1_epi16(0x8008) : _mm_set1_epi16(0x8000);
+  __m128i d = _mm_set1_epi16(0x100);
+
+  int i;
+  for (i = 0; i < h; ++i) {
+    const __m128i wg_wg = _mm_shuffle_epi8(wh[0], d);
+    const __m128i sc_sc = _mm_shuffle_epi8(wh[1], d);
+    const __m128i wh_sc = _mm_unpacklo_epi16(wg_wg, sc_sc);
+    __m128i s0 = _mm_madd_epi16(pixels[0], wh_sc);
+    __m128i s1 = _mm_madd_epi16(pixels[1], wh_sc);
+
+    __m128i b = _mm_shuffle_epi8(pixels[2], rep);
+    b = _mm_unpacklo_epi16(b, pixels[3]);
+    __m128i sum0 = _mm_madd_epi16(b, ww[0]);
+    __m128i sum1 = _mm_madd_epi16(b, ww[1]);
+
+    s0 = _mm_add_epi32(s0, sum0);
+    s0 = _mm_add_epi32(s0, round);
+    s0 = _mm_srai_epi32(s0, 1 + sm_weight_log2_scale);
+
+    s1 = _mm_add_epi32(s1, sum1);
+    s1 = _mm_add_epi32(s1, round);
+    s1 = _mm_srai_epi32(s1, 1 + sm_weight_log2_scale);
+
+    sum0 = _mm_packus_epi16(s0, s1);
+    sum0 = _mm_shuffle_epi8(sum0, gat);
+    _mm_storel_epi64((__m128i *)dst, sum0);
+    dst += stride;
+
+    rep = _mm_add_epi16(rep, one);
+    d = _mm_add_epi16(d, inc);
+  }
+}
+
+void aom_smooth_predictor_8x4_ssse3(uint8_t *dst, ptrdiff_t stride,
+                                    const uint8_t *above, const uint8_t *left) {
+  __m128i pixels[4];
+  load_pixel_w8(above, left, 4, pixels);
+
+  __m128i wh[4], ww[2];
+  load_weight_w8(sm_weight_arrays, 4, wh, ww);
+
+  smooth_pred_8xh(pixels, wh, ww, 4, dst, stride, 0);
+}
+
+void aom_smooth_predictor_8x8_ssse3(uint8_t *dst, ptrdiff_t stride,
+                                    const uint8_t *above, const uint8_t *left) {
+  __m128i pixels[4];
+  load_pixel_w8(above, left, 8, pixels);
+
+  __m128i wh[4], ww[2];
+  load_weight_w8(sm_weight_arrays, 8, wh, ww);
+
+  smooth_pred_8xh(pixels, wh, ww, 8, dst, stride, 0);
+}
+
+void aom_smooth_predictor_8x16_ssse3(uint8_t *dst, ptrdiff_t stride,
+                                     const uint8_t *above,
+                                     const uint8_t *left) {
+  __m128i pixels[4];
+  load_pixel_w8(above, left, 16, pixels);
+
+  __m128i wh[4], ww[2];
+  load_weight_w8(sm_weight_arrays, 16, wh, ww);
+
+  smooth_pred_8xh(pixels, wh, ww, 8, dst, stride, 0);
+  dst += stride << 3;
+  smooth_pred_8xh(pixels, &wh[2], ww, 8, dst, stride, 1);
+}
+
+void aom_smooth_predictor_8x32_ssse3(uint8_t *dst, ptrdiff_t stride,
+                                     const uint8_t *above,
+                                     const uint8_t *left) {
+  __m128i pixels[8];
+  load_pixel_w8(above, left, 32, pixels);
+
+  __m128i wh[8], ww[2];
+  load_weight_w8(sm_weight_arrays, 32, wh, ww);
+
+  smooth_pred_8xh(&pixels[0], wh, ww, 8, dst, stride, 0);
+  dst += stride << 3;
+  smooth_pred_8xh(&pixels[0], &wh[2], ww, 8, dst, stride, 1);
+  dst += stride << 3;
+  smooth_pred_8xh(&pixels[4], &wh[4], ww, 8, dst, stride, 0);
+  dst += stride << 3;
+  smooth_pred_8xh(&pixels[4], &wh[6], ww, 8, dst, stride, 1);
+}
+
+static INLINE void smooth_predictor_wxh(uint8_t *dst, ptrdiff_t stride,
+                                        const uint8_t *above,
+                                        const uint8_t *left, uint32_t bw,
+                                        uint32_t bh) {
+  const uint8_t *const sm_weights_w = sm_weight_arrays + bw;
+  const uint8_t *const sm_weights_h = sm_weight_arrays + bh;
+  const __m128i zero = _mm_setzero_si128();
+  const __m128i scale_value =
+      _mm_set1_epi16((uint16_t)(1 << sm_weight_log2_scale));
+  const __m128i bottom_left = _mm_cvtsi32_si128((uint32_t)left[bh - 1]);
+  const __m128i dup16 = _mm_set1_epi32(0x01000100);
+  const __m128i top_right =
+      _mm_shuffle_epi8(_mm_cvtsi32_si128((uint32_t)above[bw - 1]), dup16);
+  const __m128i gat = _mm_set_epi32(0, 0, 0xe0c0a08, 0x6040200);
+  const __m128i round = _mm_set1_epi32((uint16_t)(1 << sm_weight_log2_scale));
+
+  for (uint32_t y = 0; y < bh; ++y) {
+    const __m128i weights_y = _mm_cvtsi32_si128((uint32_t)sm_weights_h[y]);
+    const __m128i left_y = _mm_cvtsi32_si128((uint32_t)left[y]);
+    const __m128i scale_m_weights_y = _mm_sub_epi16(scale_value, weights_y);
+    __m128i pred_scaled_bl = _mm_mullo_epi16(scale_m_weights_y, bottom_left);
+    const __m128i wl_y =
+        _mm_shuffle_epi32(_mm_unpacklo_epi16(weights_y, left_y), 0);
+    pred_scaled_bl = _mm_add_epi32(pred_scaled_bl, round);
+    pred_scaled_bl = _mm_shuffle_epi32(pred_scaled_bl, 0);
+
+    for (uint32_t x = 0; x < bw; x += 8) {
+      const __m128i top_x = _mm_loadl_epi64((const __m128i *)(above + x));
+      const __m128i weights_x =
+          _mm_loadl_epi64((const __m128i *)(sm_weights_w + x));
+      const __m128i tw_x = _mm_unpacklo_epi8(top_x, weights_x);
+      const __m128i tw_x_lo = _mm_unpacklo_epi8(tw_x, zero);
+      const __m128i tw_x_hi = _mm_unpackhi_epi8(tw_x, zero);
+
+      __m128i pred_lo = _mm_madd_epi16(tw_x_lo, wl_y);
+      __m128i pred_hi = _mm_madd_epi16(tw_x_hi, wl_y);
+
+      const __m128i scale_m_weights_x =
+          _mm_sub_epi16(scale_value, _mm_unpacklo_epi8(weights_x, zero));
+      const __m128i swxtr = _mm_mullo_epi16(scale_m_weights_x, top_right);
+      const __m128i swxtr_lo = _mm_unpacklo_epi16(swxtr, zero);
+      const __m128i swxtr_hi = _mm_unpackhi_epi16(swxtr, zero);
+
+      pred_lo = _mm_add_epi32(pred_lo, pred_scaled_bl);
+      pred_hi = _mm_add_epi32(pred_hi, pred_scaled_bl);
+
+      pred_lo = _mm_add_epi32(pred_lo, swxtr_lo);
+      pred_hi = _mm_add_epi32(pred_hi, swxtr_hi);
+
+      pred_lo = _mm_srai_epi32(pred_lo, (1 + sm_weight_log2_scale));
+      pred_hi = _mm_srai_epi32(pred_hi, (1 + sm_weight_log2_scale));
+
+      __m128i pred = _mm_packus_epi16(pred_lo, pred_hi);
+      pred = _mm_shuffle_epi8(pred, gat);
+      _mm_storel_epi64((__m128i *)(dst + x), pred);
+    }
+    dst += stride;
+  }
+}
+
+void aom_smooth_predictor_16x4_ssse3(uint8_t *dst, ptrdiff_t stride,
+                                     const uint8_t *above,
+                                     const uint8_t *left) {
+  smooth_predictor_wxh(dst, stride, above, left, 16, 4);
+}
+
+void aom_smooth_predictor_16x8_ssse3(uint8_t *dst, ptrdiff_t stride,
+                                     const uint8_t *above,
+                                     const uint8_t *left) {
+  smooth_predictor_wxh(dst, stride, above, left, 16, 8);
+}
+
+void aom_smooth_predictor_16x16_ssse3(uint8_t *dst, ptrdiff_t stride,
+                                      const uint8_t *above,
+                                      const uint8_t *left) {
+  smooth_predictor_wxh(dst, stride, above, left, 16, 16);
+}
+
+void aom_smooth_predictor_16x32_ssse3(uint8_t *dst, ptrdiff_t stride,
+                                      const uint8_t *above,
+                                      const uint8_t *left) {
+  smooth_predictor_wxh(dst, stride, above, left, 16, 32);
+}
+
+void aom_smooth_predictor_32x8_ssse3(uint8_t *dst, ptrdiff_t stride,
+                                     const uint8_t *above,
+                                     const uint8_t *left) {
+  smooth_predictor_wxh(dst, stride, above, left, 32, 8);
+}
+
+void aom_smooth_predictor_32x16_ssse3(uint8_t *dst, ptrdiff_t stride,
+                                      const uint8_t *above,
+                                      const uint8_t *left) {
+  smooth_predictor_wxh(dst, stride, above, left, 32, 16);
+}
+
+void aom_smooth_predictor_32x32_ssse3(uint8_t *dst, ptrdiff_t stride,
+                                      const uint8_t *above,
+                                      const uint8_t *left) {
+  smooth_predictor_wxh(dst, stride, above, left, 32, 32);
+}
+
+void aom_smooth_predictor_32x64_ssse3(uint8_t *dst, ptrdiff_t stride,
+                                      const uint8_t *above,
+                                      const uint8_t *left) {
+  smooth_predictor_wxh(dst, stride, above, left, 32, 64);
+}
+
+void aom_smooth_predictor_64x64_ssse3(uint8_t *dst, ptrdiff_t stride,
+                                      const uint8_t *above,
+                                      const uint8_t *left) {
+  smooth_predictor_wxh(dst, stride, above, left, 64, 64);
+}
+
+void aom_smooth_predictor_64x32_ssse3(uint8_t *dst, ptrdiff_t stride,
+                                      const uint8_t *above,
+                                      const uint8_t *left) {
+  smooth_predictor_wxh(dst, stride, above, left, 64, 32);
+}
+
+void aom_smooth_predictor_64x16_ssse3(uint8_t *dst, ptrdiff_t stride,
+                                      const uint8_t *above,
+                                      const uint8_t *left) {
+  smooth_predictor_wxh(dst, stride, above, left, 64, 16);
+}
+
+void aom_smooth_predictor_16x64_ssse3(uint8_t *dst, ptrdiff_t stride,
+                                      const uint8_t *above,
+                                      const uint8_t *left) {
+  smooth_predictor_wxh(dst, stride, above, left, 16, 64);
+}
+
+// -----------------------------------------------------------------------------
+// SMOOTH_V_PRED
+
+// pixels[0]: above and below_pred interleave vector
+static INLINE void load_pixel_v_w4(const uint8_t *above, const uint8_t *left,
+                                   int height, __m128i *pixels) {
+  const __m128i zero = _mm_setzero_si128();
+  __m128i d = _mm_cvtsi32_si128(((const uint32_t *)above)[0]);
+  const __m128i bp = _mm_set1_epi16((uint16_t)left[height - 1]);
+  d = _mm_unpacklo_epi8(d, zero);
+  pixels[0] = _mm_unpacklo_epi16(d, bp);
+}
+
+// weights[0]: weights_h vector
+// weights[1]: scale - weights_h vector
+static INLINE void load_weight_v_w4(const uint8_t *weight_array, int height,
+                                    __m128i *weights) {
+  const __m128i zero = _mm_setzero_si128();
+  const __m128i d = _mm_set1_epi16((uint16_t)(1 << sm_weight_log2_scale));
+
+  if (height == 4) {
+    const __m128i weight =
+        _mm_cvtsi32_si128(((const uint32_t *)weight_array)[1]);
+    weights[0] = _mm_unpacklo_epi8(weight, zero);
+    weights[1] = _mm_sub_epi16(d, weights[0]);
+  } else if (height == 8) {
+    const __m128i weight = _mm_loadl_epi64((const __m128i *)&weight_array[8]);
+    weights[0] = _mm_unpacklo_epi8(weight, zero);
+    weights[1] = _mm_sub_epi16(d, weights[0]);
+  } else {
+    const __m128i weight = _mm_loadu_si128((const __m128i *)&weight_array[16]);
+    weights[0] = _mm_unpacklo_epi8(weight, zero);
+    weights[1] = _mm_sub_epi16(d, weights[0]);
+    weights[2] = _mm_unpackhi_epi8(weight, zero);
+    weights[3] = _mm_sub_epi16(d, weights[2]);
+  }
+}
+
+static INLINE void smooth_v_pred_4xh(const __m128i *pixel,
+                                     const __m128i *weight, int h, uint8_t *dst,
+                                     ptrdiff_t stride) {
+  const __m128i pred_round = _mm_set1_epi32((1 << (sm_weight_log2_scale - 1)));
+  const __m128i inc = _mm_set1_epi16(0x202);
+  const __m128i gat = _mm_set1_epi32(0xc080400);
+  __m128i d = _mm_set1_epi16(0x100);
+
+  for (int i = 0; i < h; ++i) {
+    const __m128i wg_wg = _mm_shuffle_epi8(weight[0], d);
+    const __m128i sc_sc = _mm_shuffle_epi8(weight[1], d);
+    const __m128i wh_sc = _mm_unpacklo_epi16(wg_wg, sc_sc);
+    __m128i sum = _mm_madd_epi16(pixel[0], wh_sc);
+    sum = _mm_add_epi32(sum, pred_round);
+    sum = _mm_srai_epi32(sum, sm_weight_log2_scale);
+    sum = _mm_shuffle_epi8(sum, gat);
+    *(uint32_t *)dst = _mm_cvtsi128_si32(sum);
+    dst += stride;
+    d = _mm_add_epi16(d, inc);
+  }
+}
+
+void aom_smooth_v_predictor_4x4_ssse3(uint8_t *dst, ptrdiff_t stride,
+                                      const uint8_t *above,
+                                      const uint8_t *left) {
+  __m128i pixels;
+  load_pixel_v_w4(above, left, 4, &pixels);
+
+  __m128i weights[2];
+  load_weight_v_w4(sm_weight_arrays, 4, weights);
+
+  smooth_v_pred_4xh(&pixels, weights, 4, dst, stride);
+}
+
+void aom_smooth_v_predictor_4x8_ssse3(uint8_t *dst, ptrdiff_t stride,
+                                      const uint8_t *above,
+                                      const uint8_t *left) {
+  __m128i pixels;
+  load_pixel_v_w4(above, left, 8, &pixels);
+
+  __m128i weights[2];
+  load_weight_v_w4(sm_weight_arrays, 8, weights);
+
+  smooth_v_pred_4xh(&pixels, weights, 8, dst, stride);
+}
+
+void aom_smooth_v_predictor_4x16_ssse3(uint8_t *dst, ptrdiff_t stride,
+                                       const uint8_t *above,
+                                       const uint8_t *left) {
+  __m128i pixels;
+  load_pixel_v_w4(above, left, 16, &pixels);
+
+  __m128i weights[4];
+  load_weight_v_w4(sm_weight_arrays, 16, weights);
+
+  smooth_v_pred_4xh(&pixels, weights, 8, dst, stride);
+  dst += stride << 3;
+  smooth_v_pred_4xh(&pixels, &weights[2], 8, dst, stride);
+}
+
+// pixels[0]: above and below_pred interleave vector, first half
+// pixels[1]: above and below_pred interleave vector, second half
+static INLINE void load_pixel_v_w8(const uint8_t *above, const uint8_t *left,
+                                   int height, __m128i *pixels) {
+  const __m128i zero = _mm_setzero_si128();
+  __m128i d = _mm_loadl_epi64((const __m128i *)above);
+  const __m128i bp = _mm_set1_epi16((uint16_t)left[height - 1]);
+  d = _mm_unpacklo_epi8(d, zero);
+  pixels[0] = _mm_unpacklo_epi16(d, bp);
+  pixels[1] = _mm_unpackhi_epi16(d, bp);
+}
+
+// weight_h[0]: weight_h vector
+// weight_h[1]: scale - weight_h vector
+// weight_h[2]: same as [0], offset 8
+// weight_h[3]: same as [1], offset 8
+// weight_h[4]: same as [0], offset 16
+// weight_h[5]: same as [1], offset 16
+// weight_h[6]: same as [0], offset 24
+// weight_h[7]: same as [1], offset 24
+static INLINE void load_weight_v_w8(const uint8_t *weight_array, int height,
+                                    __m128i *weight_h) {
+  const __m128i zero = _mm_setzero_si128();
+  const __m128i d = _mm_set1_epi16((uint16_t)(1 << sm_weight_log2_scale));
+
+  if (height < 16) {
+    const int offset = height < 8 ? 4 : 8;
+    const __m128i weight =
+        _mm_loadu_si128((const __m128i *)&weight_array[offset]);
+    weight_h[0] = _mm_unpacklo_epi8(weight, zero);
+    weight_h[1] = _mm_sub_epi16(d, weight_h[0]);
+  } else if (height == 16) {
+    const __m128i weight = _mm_loadu_si128((const __m128i *)&weight_array[16]);
+    weight_h[0] = _mm_unpacklo_epi8(weight, zero);
+    weight_h[1] = _mm_sub_epi16(d, weight_h[0]);
+    weight_h[2] = _mm_unpackhi_epi8(weight, zero);
+    weight_h[3] = _mm_sub_epi16(d, weight_h[2]);
+  } else {
+    const __m128i weight_lo =
+        _mm_loadu_si128((const __m128i *)&weight_array[32]);
+    weight_h[0] = _mm_unpacklo_epi8(weight_lo, zero);
+    weight_h[1] = _mm_sub_epi16(d, weight_h[0]);
+    weight_h[2] = _mm_unpackhi_epi8(weight_lo, zero);
+    weight_h[3] = _mm_sub_epi16(d, weight_h[2]);
+    const __m128i weight_hi =
+        _mm_loadu_si128((const __m128i *)&weight_array[32 + 16]);
+    weight_h[4] = _mm_unpacklo_epi8(weight_hi, zero);
+    weight_h[5] = _mm_sub_epi16(d, weight_h[4]);
+    weight_h[6] = _mm_unpackhi_epi8(weight_hi, zero);
+    weight_h[7] = _mm_sub_epi16(d, weight_h[6]);
+  }
+}
+
+static INLINE void smooth_v_pred_8xh(const __m128i *pixels, const __m128i *wh,
+                                     int h, uint8_t *dst, ptrdiff_t stride) {
+  const __m128i pred_round = _mm_set1_epi32((1 << (sm_weight_log2_scale - 1)));
+  const __m128i inc = _mm_set1_epi16(0x202);
+  const __m128i gat = _mm_set_epi32(0, 0, 0xe0c0a08, 0x6040200);
+  __m128i d = _mm_set1_epi16(0x100);
+
+  for (int i = 0; i < h; ++i) {
+    const __m128i wg_wg = _mm_shuffle_epi8(wh[0], d);
+    const __m128i sc_sc = _mm_shuffle_epi8(wh[1], d);
+    const __m128i wh_sc = _mm_unpacklo_epi16(wg_wg, sc_sc);
+    __m128i s0 = _mm_madd_epi16(pixels[0], wh_sc);
+    __m128i s1 = _mm_madd_epi16(pixels[1], wh_sc);
+
+    s0 = _mm_add_epi32(s0, pred_round);
+    s0 = _mm_srai_epi32(s0, sm_weight_log2_scale);
+
+    s1 = _mm_add_epi32(s1, pred_round);
+    s1 = _mm_srai_epi32(s1, sm_weight_log2_scale);
+
+    __m128i sum01 = _mm_packus_epi16(s0, s1);
+    sum01 = _mm_shuffle_epi8(sum01, gat);
+    _mm_storel_epi64((__m128i *)dst, sum01);
+    dst += stride;
+
+    d = _mm_add_epi16(d, inc);
+  }
+}
+
+void aom_smooth_v_predictor_8x4_ssse3(uint8_t *dst, ptrdiff_t stride,
+                                      const uint8_t *above,
+                                      const uint8_t *left) {
+  __m128i pixels[2];
+  load_pixel_v_w8(above, left, 4, pixels);
+
+  __m128i wh[2];
+  load_weight_v_w8(sm_weight_arrays, 4, wh);
+
+  smooth_v_pred_8xh(pixels, wh, 4, dst, stride);
+}
+
+void aom_smooth_v_predictor_8x8_ssse3(uint8_t *dst, ptrdiff_t stride,
+                                      const uint8_t *above,
+                                      const uint8_t *left) {
+  __m128i pixels[2];
+  load_pixel_v_w8(above, left, 8, pixels);
+
+  __m128i wh[2];
+  load_weight_v_w8(sm_weight_arrays, 8, wh);
+
+  smooth_v_pred_8xh(pixels, wh, 8, dst, stride);
+}
+
+void aom_smooth_v_predictor_8x16_ssse3(uint8_t *dst, ptrdiff_t stride,
+                                       const uint8_t *above,
+                                       const uint8_t *left) {
+  __m128i pixels[2];
+  load_pixel_v_w8(above, left, 16, pixels);
+
+  __m128i wh[4];
+  load_weight_v_w8(sm_weight_arrays, 16, wh);
+
+  smooth_v_pred_8xh(pixels, wh, 8, dst, stride);
+  dst += stride << 3;
+  smooth_v_pred_8xh(pixels, &wh[2], 8, dst, stride);
+}
+
+void aom_smooth_v_predictor_8x32_ssse3(uint8_t *dst, ptrdiff_t stride,
+                                       const uint8_t *above,
+                                       const uint8_t *left) {
+  __m128i pixels[2];
+  load_pixel_v_w8(above, left, 32, pixels);
+
+  __m128i wh[8];
+  load_weight_v_w8(sm_weight_arrays, 32, wh);
+
+  smooth_v_pred_8xh(pixels, &wh[0], 8, dst, stride);
+  dst += stride << 3;
+  smooth_v_pred_8xh(pixels, &wh[2], 8, dst, stride);
+  dst += stride << 3;
+  smooth_v_pred_8xh(pixels, &wh[4], 8, dst, stride);
+  dst += stride << 3;
+  smooth_v_pred_8xh(pixels, &wh[6], 8, dst, stride);
+}
+
+static INLINE void smooth_v_predictor_wxh(uint8_t *dst, ptrdiff_t stride,
+                                          const uint8_t *above,
+                                          const uint8_t *left, uint32_t bw,
+                                          uint32_t bh) {
+  const uint8_t *const sm_weights_h = sm_weight_arrays + bh;
+  const __m128i zero = _mm_setzero_si128();
+  const __m128i scale_value =
+      _mm_set1_epi16((uint16_t)(1 << sm_weight_log2_scale));
+  const __m128i dup16 = _mm_set1_epi32(0x01000100);
+  const __m128i bottom_left =
+      _mm_shuffle_epi8(_mm_cvtsi32_si128((uint32_t)left[bh - 1]), dup16);
+  const __m128i gat = _mm_set_epi32(0, 0, 0xe0c0a08, 0x6040200);
+  const __m128i round =
+      _mm_set1_epi32((uint16_t)(1 << (sm_weight_log2_scale - 1)));
+
+  for (uint32_t y = 0; y < bh; ++y) {
+    const __m128i weights_y = _mm_cvtsi32_si128((uint32_t)sm_weights_h[y]);
+    const __m128i scale_m_weights_y =
+        _mm_shuffle_epi8(_mm_sub_epi16(scale_value, weights_y), dup16);
+    const __m128i wl_y =
+        _mm_shuffle_epi32(_mm_unpacklo_epi16(weights_y, bottom_left), 0);
+
+    for (uint32_t x = 0; x < bw; x += 8) {
+      const __m128i top_x = _mm_loadl_epi64((const __m128i *)(above + x));
+      // 8 -> 16
+      const __m128i tw_x = _mm_unpacklo_epi8(top_x, zero);
+      const __m128i tw_x_lo = _mm_unpacklo_epi16(tw_x, scale_m_weights_y);
+      const __m128i tw_x_hi = _mm_unpackhi_epi16(tw_x, scale_m_weights_y);
+      // top_x * weights_y + scale_m_weights_y * bottom_left
+      __m128i pred_lo = _mm_madd_epi16(tw_x_lo, wl_y);
+      __m128i pred_hi = _mm_madd_epi16(tw_x_hi, wl_y);
+
+      pred_lo = _mm_add_epi32(pred_lo, round);
+      pred_hi = _mm_add_epi32(pred_hi, round);
+      pred_lo = _mm_srai_epi32(pred_lo, sm_weight_log2_scale);
+      pred_hi = _mm_srai_epi32(pred_hi, sm_weight_log2_scale);
+
+      __m128i pred = _mm_packus_epi16(pred_lo, pred_hi);
+      pred = _mm_shuffle_epi8(pred, gat);
+      _mm_storel_epi64((__m128i *)(dst + x), pred);
+    }
+    dst += stride;
+  }
+}
+
+void aom_smooth_v_predictor_16x4_ssse3(uint8_t *dst, ptrdiff_t stride,
+                                       const uint8_t *above,
+                                       const uint8_t *left) {
+  smooth_v_predictor_wxh(dst, stride, above, left, 16, 4);
+}
+
+void aom_smooth_v_predictor_16x8_ssse3(uint8_t *dst, ptrdiff_t stride,
+                                       const uint8_t *above,
+                                       const uint8_t *left) {
+  smooth_v_predictor_wxh(dst, stride, above, left, 16, 8);
+}
+
+void aom_smooth_v_predictor_16x16_ssse3(uint8_t *dst, ptrdiff_t stride,
+                                        const uint8_t *above,
+                                        const uint8_t *left) {
+  smooth_v_predictor_wxh(dst, stride, above, left, 16, 16);
+}
+
+void aom_smooth_v_predictor_16x32_ssse3(uint8_t *dst, ptrdiff_t stride,
+                                        const uint8_t *above,
+                                        const uint8_t *left) {
+  smooth_v_predictor_wxh(dst, stride, above, left, 16, 32);
+}
+
+void aom_smooth_v_predictor_32x8_ssse3(uint8_t *dst, ptrdiff_t stride,
+                                       const uint8_t *above,
+                                       const uint8_t *left) {
+  smooth_v_predictor_wxh(dst, stride, above, left, 32, 8);
+}
+
+void aom_smooth_v_predictor_32x16_ssse3(uint8_t *dst, ptrdiff_t stride,
+                                        const uint8_t *above,
+                                        const uint8_t *left) {
+  smooth_v_predictor_wxh(dst, stride, above, left, 32, 16);
+}
+
+void aom_smooth_v_predictor_32x32_ssse3(uint8_t *dst, ptrdiff_t stride,
+                                        const uint8_t *above,
+                                        const uint8_t *left) {
+  smooth_v_predictor_wxh(dst, stride, above, left, 32, 32);
+}
+
+void aom_smooth_v_predictor_32x64_ssse3(uint8_t *dst, ptrdiff_t stride,
+                                        const uint8_t *above,
+                                        const uint8_t *left) {
+  smooth_v_predictor_wxh(dst, stride, above, left, 32, 64);
+}
+
+void aom_smooth_v_predictor_64x64_ssse3(uint8_t *dst, ptrdiff_t stride,
+                                        const uint8_t *above,
+                                        const uint8_t *left) {
+  smooth_v_predictor_wxh(dst, stride, above, left, 64, 64);
+}
+
+void aom_smooth_v_predictor_64x32_ssse3(uint8_t *dst, ptrdiff_t stride,
+                                        const uint8_t *above,
+                                        const uint8_t *left) {
+  smooth_v_predictor_wxh(dst, stride, above, left, 64, 32);
+}
+
+void aom_smooth_v_predictor_64x16_ssse3(uint8_t *dst, ptrdiff_t stride,
+                                        const uint8_t *above,
+                                        const uint8_t *left) {
+  smooth_v_predictor_wxh(dst, stride, above, left, 64, 16);
+}
+
+void aom_smooth_v_predictor_16x64_ssse3(uint8_t *dst, ptrdiff_t stride,
+                                        const uint8_t *above,
+                                        const uint8_t *left) {
+  smooth_v_predictor_wxh(dst, stride, above, left, 16, 64);
+}
+
+// -----------------------------------------------------------------------------
+// SMOOTH_H_PRED
+
+// pixels[0]: left vector
+// pixels[1]: right_pred vector
+static INLINE void load_pixel_h_w4(const uint8_t *above, const uint8_t *left,
+                                   int height, __m128i *pixels) {
+  if (height == 4)
+    pixels[0] = _mm_cvtsi32_si128(((const uint32_t *)left)[0]);
+  else if (height == 8)
+    pixels[0] = _mm_loadl_epi64(((const __m128i *)left));
+  else
+    pixels[0] = _mm_loadu_si128(((const __m128i *)left));
+  pixels[1] = _mm_set1_epi16((uint16_t)above[3]);
+}
+
+// weights[0]: weights_w and scale - weights_w interleave vector
+static INLINE void load_weight_h_w4(const uint8_t *weight_array, int height,
+                                    __m128i *weights) {
+  (void)height;
+  const __m128i t = _mm_loadu_si128((const __m128i *)&weight_array[4]);
+  const __m128i zero = _mm_setzero_si128();
+
+  const __m128i weights_0 = _mm_unpacklo_epi8(t, zero);
+  const __m128i d = _mm_set1_epi16((uint16_t)(1 << sm_weight_log2_scale));
+  const __m128i weights_1 = _mm_sub_epi16(d, weights_0);
+  weights[0] = _mm_unpacklo_epi16(weights_0, weights_1);
+}
+
+static INLINE void smooth_h_pred_4xh(const __m128i *pixel,
+                                     const __m128i *weight, int h, uint8_t *dst,
+                                     ptrdiff_t stride) {
+  const __m128i pred_round = _mm_set1_epi32((1 << (sm_weight_log2_scale - 1)));
+  const __m128i one = _mm_set1_epi16(1);
+  const __m128i gat = _mm_set1_epi32(0xc080400);
+  __m128i rep = _mm_set1_epi16(0x8000);
+
+  for (int i = 0; i < h; ++i) {
+    __m128i b = _mm_shuffle_epi8(pixel[0], rep);
+    b = _mm_unpacklo_epi16(b, pixel[1]);
+    __m128i sum = _mm_madd_epi16(b, weight[0]);
+
+    sum = _mm_add_epi32(sum, pred_round);
+    sum = _mm_srai_epi32(sum, sm_weight_log2_scale);
+
+    sum = _mm_shuffle_epi8(sum, gat);
+    *(uint32_t *)dst = _mm_cvtsi128_si32(sum);
+    dst += stride;
+
+    rep = _mm_add_epi16(rep, one);
+  }
+}
+
+void aom_smooth_h_predictor_4x4_ssse3(uint8_t *dst, ptrdiff_t stride,
+                                      const uint8_t *above,
+                                      const uint8_t *left) {
+  __m128i pixels[2];
+  load_pixel_h_w4(above, left, 4, pixels);
+
+  __m128i weights;
+  load_weight_h_w4(sm_weight_arrays, 4, &weights);
+
+  smooth_h_pred_4xh(pixels, &weights, 4, dst, stride);
+}
+
+void aom_smooth_h_predictor_4x8_ssse3(uint8_t *dst, ptrdiff_t stride,
+                                      const uint8_t *above,
+                                      const uint8_t *left) {
+  __m128i pixels[2];
+  load_pixel_h_w4(above, left, 8, pixels);
+
+  __m128i weights;
+  load_weight_h_w4(sm_weight_arrays, 8, &weights);
+
+  smooth_h_pred_4xh(pixels, &weights, 8, dst, stride);
+}
+
+void aom_smooth_h_predictor_4x16_ssse3(uint8_t *dst, ptrdiff_t stride,
+                                       const uint8_t *above,
+                                       const uint8_t *left) {
+  __m128i pixels[2];
+  load_pixel_h_w4(above, left, 16, pixels);
+
+  __m128i weights;
+  load_weight_h_w4(sm_weight_arrays, 8, &weights);
+
+  smooth_h_pred_4xh(pixels, &weights, 8, dst, stride);
+  dst += stride << 3;
+
+  pixels[0] = _mm_srli_si128(pixels[0], 8);
+  smooth_h_pred_4xh(pixels, &weights, 8, dst, stride);
+}
+
+// pixels[0]: left vector
+// pixels[1]: right_pred vector
+// pixels[2]: left vector + 16
+// pixels[3]: right_pred vector
+static INLINE void load_pixel_h_w8(const uint8_t *above, const uint8_t *left,
+                                   int height, __m128i *pixels) {
+  pixels[1] = _mm_set1_epi16((uint16_t)above[7]);
+
+  if (height == 4) {
+    pixels[0] = _mm_cvtsi32_si128(((const uint32_t *)left)[0]);
+  } else if (height == 8) {
+    pixels[0] = _mm_loadl_epi64((const __m128i *)left);
+  } else if (height == 16) {
+    pixels[0] = _mm_load_si128((const __m128i *)left);
+  } else {
+    pixels[0] = _mm_load_si128((const __m128i *)left);
+    pixels[2] = _mm_load_si128((const __m128i *)(left + 16));
+    pixels[3] = pixels[1];
+  }
+}
+
+// weight_w[0]: weights_w and scale - weights_w interleave vector, first half
+// weight_w[1]: weights_w and scale - weights_w interleave vector, second half
+static INLINE void load_weight_h_w8(const uint8_t *weight_array, int height,
+                                    __m128i *weight_w) {
+  (void)height;
+  const __m128i zero = _mm_setzero_si128();
+  const __m128i d = _mm_set1_epi16((uint16_t)(1 << sm_weight_log2_scale));
+  const __m128i we = _mm_loadu_si128((const __m128i *)&weight_array[8]);
+  const __m128i tmp1 = _mm_unpacklo_epi8(we, zero);
+  const __m128i tmp2 = _mm_sub_epi16(d, tmp1);
+  weight_w[0] = _mm_unpacklo_epi16(tmp1, tmp2);
+  weight_w[1] = _mm_unpackhi_epi16(tmp1, tmp2);
+}
+
+static INLINE void smooth_h_pred_8xh(const __m128i *pixels, const __m128i *ww,
+                                     int h, uint8_t *dst, ptrdiff_t stride,
+                                     int second_half) {
+  const __m128i pred_round = _mm_set1_epi32((1 << (sm_weight_log2_scale - 1)));
+  const __m128i one = _mm_set1_epi16(1);
+  const __m128i gat = _mm_set_epi32(0, 0, 0xe0c0a08, 0x6040200);
+  __m128i rep = second_half ? _mm_set1_epi16(0x8008) : _mm_set1_epi16(0x8000);
+
+  for (int i = 0; i < h; ++i) {
+    __m128i b = _mm_shuffle_epi8(pixels[0], rep);
+    b = _mm_unpacklo_epi16(b, pixels[1]);
+    __m128i sum0 = _mm_madd_epi16(b, ww[0]);
+    __m128i sum1 = _mm_madd_epi16(b, ww[1]);
+
+    sum0 = _mm_add_epi32(sum0, pred_round);
+    sum0 = _mm_srai_epi32(sum0, sm_weight_log2_scale);
+
+    sum1 = _mm_add_epi32(sum1, pred_round);
+    sum1 = _mm_srai_epi32(sum1, sm_weight_log2_scale);
+
+    sum0 = _mm_packus_epi16(sum0, sum1);
+    sum0 = _mm_shuffle_epi8(sum0, gat);
+    _mm_storel_epi64((__m128i *)dst, sum0);
+    dst += stride;
+
+    rep = _mm_add_epi16(rep, one);
+  }
+}
+
+void aom_smooth_h_predictor_8x4_ssse3(uint8_t *dst, ptrdiff_t stride,
+                                      const uint8_t *above,
+                                      const uint8_t *left) {
+  __m128i pixels[2];
+  load_pixel_h_w8(above, left, 4, pixels);
+
+  __m128i ww[2];
+  load_weight_h_w8(sm_weight_arrays, 4, ww);
+
+  smooth_h_pred_8xh(pixels, ww, 4, dst, stride, 0);
+}
+
+void aom_smooth_h_predictor_8x8_ssse3(uint8_t *dst, ptrdiff_t stride,
+                                      const uint8_t *above,
+                                      const uint8_t *left) {
+  __m128i pixels[2];
+  load_pixel_h_w8(above, left, 8, pixels);
+
+  __m128i ww[2];
+  load_weight_h_w8(sm_weight_arrays, 8, ww);
+
+  smooth_h_pred_8xh(pixels, ww, 8, dst, stride, 0);
+}
+
+void aom_smooth_h_predictor_8x16_ssse3(uint8_t *dst, ptrdiff_t stride,
+                                       const uint8_t *above,
+                                       const uint8_t *left) {
+  __m128i pixels[2];
+  load_pixel_h_w8(above, left, 16, pixels);
+
+  __m128i ww[2];
+  load_weight_h_w8(sm_weight_arrays, 16, ww);
+
+  smooth_h_pred_8xh(pixels, ww, 8, dst, stride, 0);
+  dst += stride << 3;
+  smooth_h_pred_8xh(pixels, ww, 8, dst, stride, 1);
+}
+
+void aom_smooth_h_predictor_8x32_ssse3(uint8_t *dst, ptrdiff_t stride,
+                                       const uint8_t *above,
+                                       const uint8_t *left) {
+  __m128i pixels[4];
+  load_pixel_h_w8(above, left, 32, pixels);
+
+  __m128i ww[2];
+  load_weight_h_w8(sm_weight_arrays, 32, ww);
+
+  smooth_h_pred_8xh(&pixels[0], ww, 8, dst, stride, 0);
+  dst += stride << 3;
+  smooth_h_pred_8xh(&pixels[0], ww, 8, dst, stride, 1);
+  dst += stride << 3;
+  smooth_h_pred_8xh(&pixels[2], ww, 8, dst, stride, 0);
+  dst += stride << 3;
+  smooth_h_pred_8xh(&pixels[2], ww, 8, dst, stride, 1);
+}
+
+static INLINE void smooth_h_predictor_wxh(uint8_t *dst, ptrdiff_t stride,
+                                          const uint8_t *above,
+                                          const uint8_t *left, uint32_t bw,
+                                          uint32_t bh) {
+  const uint8_t *const sm_weights_w = sm_weight_arrays + bw;
+  const __m128i zero = _mm_setzero_si128();
+  const __m128i scale_value =
+      _mm_set1_epi16((uint16_t)(1 << sm_weight_log2_scale));
+  const __m128i top_right = _mm_cvtsi32_si128((uint32_t)above[bw - 1]);
+  const __m128i gat = _mm_set_epi32(0, 0, 0xe0c0a08, 0x6040200);
+  const __m128i pred_round = _mm_set1_epi32((1 << (sm_weight_log2_scale - 1)));
+
+  for (uint32_t y = 0; y < bh; ++y) {
+    const __m128i left_y = _mm_cvtsi32_si128((uint32_t)left[y]);
+    const __m128i tr_ly =
+        _mm_shuffle_epi32(_mm_unpacklo_epi16(top_right, left_y), 0);
+
+    for (uint32_t x = 0; x < bw; x += 8) {
+      const __m128i weights_x =
+          _mm_loadl_epi64((const __m128i *)(sm_weights_w + x));
+      const __m128i weights_xw = _mm_unpacklo_epi8(weights_x, zero);
+      const __m128i scale_m_weights_x = _mm_sub_epi16(scale_value, weights_xw);
+      const __m128i wx_lo = _mm_unpacklo_epi16(scale_m_weights_x, weights_xw);
+      const __m128i wx_hi = _mm_unpackhi_epi16(scale_m_weights_x, weights_xw);
+      __m128i pred_lo = _mm_madd_epi16(wx_lo, tr_ly);
+      __m128i pred_hi = _mm_madd_epi16(wx_hi, tr_ly);
+
+      pred_lo = _mm_add_epi32(pred_lo, pred_round);
+      pred_hi = _mm_add_epi32(pred_hi, pred_round);
+
+      pred_lo = _mm_srai_epi32(pred_lo, sm_weight_log2_scale);
+      pred_hi = _mm_srai_epi32(pred_hi, sm_weight_log2_scale);
+
+      __m128i pred = _mm_packus_epi16(pred_lo, pred_hi);
+      pred = _mm_shuffle_epi8(pred, gat);
+      _mm_storel_epi64((__m128i *)(dst + x), pred);
+    }
+    dst += stride;
+  }
+}
+
+void aom_smooth_h_predictor_16x4_ssse3(uint8_t *dst, ptrdiff_t stride,
+                                       const uint8_t *above,
+                                       const uint8_t *left) {
+  smooth_h_predictor_wxh(dst, stride, above, left, 16, 4);
+}
+
+void aom_smooth_h_predictor_16x8_ssse3(uint8_t *dst, ptrdiff_t stride,
+                                       const uint8_t *above,
+                                       const uint8_t *left) {
+  smooth_h_predictor_wxh(dst, stride, above, left, 16, 8);
+}
+
+void aom_smooth_h_predictor_16x16_ssse3(uint8_t *dst, ptrdiff_t stride,
+                                        const uint8_t *above,
+                                        const uint8_t *left) {
+  smooth_h_predictor_wxh(dst, stride, above, left, 16, 16);
+}
+
+void aom_smooth_h_predictor_16x32_ssse3(uint8_t *dst, ptrdiff_t stride,
+                                        const uint8_t *above,
+                                        const uint8_t *left) {
+  smooth_h_predictor_wxh(dst, stride, above, left, 16, 32);
+}
+
+void aom_smooth_h_predictor_16x64_ssse3(uint8_t *dst, ptrdiff_t stride,
+                                        const uint8_t *above,
+                                        const uint8_t *left) {
+  smooth_h_predictor_wxh(dst, stride, above, left, 16, 64);
+}
+
+void aom_smooth_h_predictor_32x8_ssse3(uint8_t *dst, ptrdiff_t stride,
+                                       const uint8_t *above,
+                                       const uint8_t *left) {
+  smooth_h_predictor_wxh(dst, stride, above, left, 32, 8);
+}
+
+void aom_smooth_h_predictor_32x16_ssse3(uint8_t *dst, ptrdiff_t stride,
+                                        const uint8_t *above,
+                                        const uint8_t *left) {
+  smooth_h_predictor_wxh(dst, stride, above, left, 32, 16);
+}
+
+void aom_smooth_h_predictor_32x32_ssse3(uint8_t *dst, ptrdiff_t stride,
+                                        const uint8_t *above,
+                                        const uint8_t *left) {
+  smooth_h_predictor_wxh(dst, stride, above, left, 32, 32);
+}
+
+void aom_smooth_h_predictor_32x64_ssse3(uint8_t *dst, ptrdiff_t stride,
+                                        const uint8_t *above,
+                                        const uint8_t *left) {
+  smooth_h_predictor_wxh(dst, stride, above, left, 32, 64);
+}
+
+void aom_smooth_h_predictor_64x64_ssse3(uint8_t *dst, ptrdiff_t stride,
+                                        const uint8_t *above,
+                                        const uint8_t *left) {
+  smooth_h_predictor_wxh(dst, stride, above, left, 64, 64);
+}
+
+void aom_smooth_h_predictor_64x32_ssse3(uint8_t *dst, ptrdiff_t stride,
+                                        const uint8_t *above,
+                                        const uint8_t *left) {
+  smooth_h_predictor_wxh(dst, stride, above, left, 64, 32);
+}
+
+void aom_smooth_h_predictor_64x16_ssse3(uint8_t *dst, ptrdiff_t stride,
+                                        const uint8_t *above,
+                                        const uint8_t *left) {
+  smooth_h_predictor_wxh(dst, stride, above, left, 64, 16);
+}
-- 
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