av1/common/x86/convolve_2d_sse2.c - aom - Git at Google

 /*
  * Copyright (c) 2016, 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 <emmintrin.h>

 #include "config/av1_rtcd.h"

 #include "aom_dsp/aom_dsp_common.h"
 #include "aom_dsp/aom_filter.h"
 #include "aom_dsp/x86/convolve_sse2.h"
 #include "av1/common/convolve.h"

 void av1_convolve_2d_sr_sse2(const uint8_t *src, int src_stride, uint8_t *dst,
                              int dst_stride, int w, int h,
                              const InterpFilterParams *filter_params_x,
                              const InterpFilterParams *filter_params_y,
                              const int subpel_x_qn, const int subpel_y_qn,
                              ConvolveParams *conv_params) {
   const int bd = 8;

   DECLARE_ALIGNED(16, int16_t,
                   im_block[(MAX_SB_SIZE + MAX_FILTER_TAP - 1) * MAX_SB_SIZE]);
   int im_h = h + filter_params_y->taps - 1;
   int im_stride = MAX_SB_SIZE;
   int i, j;
   const int fo_vert = filter_params_y->taps / 2 - 1;
   const int fo_horiz = filter_params_x->taps / 2 - 1;
   const uint8_t *const src_ptr = src - fo_vert * src_stride - fo_horiz;

   const __m128i zero = _mm_setzero_si128();
   const int bits =
       FILTER_BITS * 2 - conv_params->round_0 - conv_params->round_1;
   const int offset_bits = bd + 2 * FILTER_BITS - conv_params->round_0;

   assert(conv_params->round_0 > 0);

   /* Horizontal filter */
   {
     const int16_t *x_filter = av1_get_interp_filter_subpel_kernel(
         filter_params_x, subpel_x_qn & SUBPEL_MASK);
     const __m128i coeffs_x = _mm_loadu_si128((__m128i *)x_filter);

     // coeffs 0 1 0 1 2 3 2 3
     const __m128i tmp_0 = _mm_unpacklo_epi32(coeffs_x, coeffs_x);
     // coeffs 4 5 4 5 6 7 6 7
     const __m128i tmp_1 = _mm_unpackhi_epi32(coeffs_x, coeffs_x);

     // coeffs 0 1 0 1 0 1 0 1
     const __m128i coeff_01 = _mm_unpacklo_epi64(tmp_0, tmp_0);
     // coeffs 2 3 2 3 2 3 2 3
     const __m128i coeff_23 = _mm_unpackhi_epi64(tmp_0, tmp_0);
     // coeffs 4 5 4 5 4 5 4 5
     const __m128i coeff_45 = _mm_unpacklo_epi64(tmp_1, tmp_1);
     // coeffs 6 7 6 7 6 7 6 7
     const __m128i coeff_67 = _mm_unpackhi_epi64(tmp_1, tmp_1);

     const __m128i round_const = _mm_set1_epi32(
         (1 << (bd + FILTER_BITS - 1)) + ((1 << conv_params->round_0) >> 1));
     const __m128i round_shift = _mm_cvtsi32_si128(conv_params->round_0);

     for (i = 0; i < im_h; ++i) {
       for (j = 0; j < w; j += 8) {
         const __m128i data =
             _mm_loadu_si128((__m128i *)&src_ptr[i * src_stride + j]);

         // Filter even-index pixels
         const __m128i src_0 = _mm_unpacklo_epi8(data, zero);
         const __m128i res_0 = _mm_madd_epi16(src_0, coeff_01);
         const __m128i src_2 = _mm_unpacklo_epi8(_mm_srli_si128(data, 2), zero);
         const __m128i res_2 = _mm_madd_epi16(src_2, coeff_23);
         const __m128i src_4 = _mm_unpacklo_epi8(_mm_srli_si128(data, 4), zero);
         const __m128i res_4 = _mm_madd_epi16(src_4, coeff_45);
         const __m128i src_6 = _mm_unpacklo_epi8(_mm_srli_si128(data, 6), zero);
         const __m128i res_6 = _mm_madd_epi16(src_6, coeff_67);

         __m128i res_even = _mm_add_epi32(_mm_add_epi32(res_0, res_4),
                                          _mm_add_epi32(res_2, res_6));
         res_even =
             _mm_sra_epi32(_mm_add_epi32(res_even, round_const), round_shift);

         // Filter odd-index pixels
         const __m128i src_1 = _mm_unpacklo_epi8(_mm_srli_si128(data, 1), zero);
         const __m128i res_1 = _mm_madd_epi16(src_1, coeff_01);
         const __m128i src_3 = _mm_unpacklo_epi8(_mm_srli_si128(data, 3), zero);
         const __m128i res_3 = _mm_madd_epi16(src_3, coeff_23);
         const __m128i src_5 = _mm_unpacklo_epi8(_mm_srli_si128(data, 5), zero);
         const __m128i res_5 = _mm_madd_epi16(src_5, coeff_45);
         const __m128i src_7 = _mm_unpacklo_epi8(_mm_srli_si128(data, 7), zero);
         const __m128i res_7 = _mm_madd_epi16(src_7, coeff_67);

         __m128i res_odd = _mm_add_epi32(_mm_add_epi32(res_1, res_5),
                                         _mm_add_epi32(res_3, res_7));
         res_odd =
             _mm_sra_epi32(_mm_add_epi32(res_odd, round_const), round_shift);

         // Pack in the column order 0, 2, 4, 6, 1, 3, 5, 7
         __m128i res = _mm_packs_epi32(res_even, res_odd);
         _mm_storeu_si128((__m128i *)&im_block[i * im_stride + j], res);
       }
     }
   }

   /* Vertical filter */
   {
     const int16_t *y_filter = av1_get_interp_filter_subpel_kernel(
         filter_params_y, subpel_y_qn & SUBPEL_MASK);
     const __m128i coeffs_y = _mm_loadu_si128((__m128i *)y_filter);

     // coeffs 0 1 0 1 2 3 2 3
     const __m128i tmp_0 = _mm_unpacklo_epi32(coeffs_y, coeffs_y);
     // coeffs 4 5 4 5 6 7 6 7
     const __m128i tmp_1 = _mm_unpackhi_epi32(coeffs_y, coeffs_y);

     // coeffs 0 1 0 1 0 1 0 1
     const __m128i coeff_01 = _mm_unpacklo_epi64(tmp_0, tmp_0);
     // coeffs 2 3 2 3 2 3 2 3
     const __m128i coeff_23 = _mm_unpackhi_epi64(tmp_0, tmp_0);
     // coeffs 4 5 4 5 4 5 4 5
     const __m128i coeff_45 = _mm_unpacklo_epi64(tmp_1, tmp_1);
     // coeffs 6 7 6 7 6 7 6 7
     const __m128i coeff_67 = _mm_unpackhi_epi64(tmp_1, tmp_1);

     const __m128i sum_round =
         _mm_set1_epi32((1 << offset_bits) + ((1 << conv_params->round_1) >> 1));
     const __m128i sum_shift = _mm_cvtsi32_si128(conv_params->round_1);

     const __m128i round_const = _mm_set1_epi32(
         ((1 << bits) >> 1) - (1 << (offset_bits - conv_params->round_1)) -
         ((1 << (offset_bits - conv_params->round_1)) >> 1));
     const __m128i round_shift = _mm_cvtsi32_si128(bits);

     for (i = 0; i < h; ++i) {
       for (j = 0; j < w; j += 8) {
         // Filter even-index pixels
         const int16_t *data = &im_block[i * im_stride + j];
         const __m128i src_0 =
             _mm_unpacklo_epi16(*(__m128i *)(data + 0 * im_stride),
                                *(__m128i *)(data + 1 * im_stride));
         const __m128i src_2 =
             _mm_unpacklo_epi16(*(__m128i *)(data + 2 * im_stride),
                                *(__m128i *)(data + 3 * im_stride));
         const __m128i src_4 =
             _mm_unpacklo_epi16(*(__m128i *)(data + 4 * im_stride),
                                *(__m128i *)(data + 5 * im_stride));
         const __m128i src_6 =
             _mm_unpacklo_epi16(*(__m128i *)(data + 6 * im_stride),
                                *(__m128i *)(data + 7 * im_stride));

         const __m128i res_0 = _mm_madd_epi16(src_0, coeff_01);
         const __m128i res_2 = _mm_madd_epi16(src_2, coeff_23);
         const __m128i res_4 = _mm_madd_epi16(src_4, coeff_45);
         const __m128i res_6 = _mm_madd_epi16(src_6, coeff_67);

         const __m128i res_even = _mm_add_epi32(_mm_add_epi32(res_0, res_2),
                                                _mm_add_epi32(res_4, res_6));

         // Filter odd-index pixels
         const __m128i src_1 =
             _mm_unpackhi_epi16(*(__m128i *)(data + 0 * im_stride),
                                *(__m128i *)(data + 1 * im_stride));
         const __m128i src_3 =
             _mm_unpackhi_epi16(*(__m128i *)(data + 2 * im_stride),
                                *(__m128i *)(data + 3 * im_stride));
         const __m128i src_5 =
             _mm_unpackhi_epi16(*(__m128i *)(data + 4 * im_stride),
                                *(__m128i *)(data + 5 * im_stride));
         const __m128i src_7 =
             _mm_unpackhi_epi16(*(__m128i *)(data + 6 * im_stride),
                                *(__m128i *)(data + 7 * im_stride));

         const __m128i res_1 = _mm_madd_epi16(src_1, coeff_01);
         const __m128i res_3 = _mm_madd_epi16(src_3, coeff_23);
         const __m128i res_5 = _mm_madd_epi16(src_5, coeff_45);
         const __m128i res_7 = _mm_madd_epi16(src_7, coeff_67);

         const __m128i res_odd = _mm_add_epi32(_mm_add_epi32(res_1, res_3),
                                               _mm_add_epi32(res_5, res_7));

         // Rearrange pixels back into the order 0 ... 7
         const __m128i res_lo = _mm_unpacklo_epi32(res_even, res_odd);
         const __m128i res_hi = _mm_unpackhi_epi32(res_even, res_odd);

         __m128i res_lo_round =
             _mm_sra_epi32(_mm_add_epi32(res_lo, sum_round), sum_shift);
         __m128i res_hi_round =
             _mm_sra_epi32(_mm_add_epi32(res_hi, sum_round), sum_shift);

         res_lo_round = _mm_sra_epi32(_mm_add_epi32(res_lo_round, round_const),
                                      round_shift);
         res_hi_round = _mm_sra_epi32(_mm_add_epi32(res_hi_round, round_const),
                                      round_shift);

         const __m128i res16 = _mm_packs_epi32(res_lo_round, res_hi_round);
         const __m128i res = _mm_packus_epi16(res16, res16);

         // Accumulate values into the destination buffer
         __m128i *const p = (__m128i *)&dst[i * dst_stride + j];

         if (w == 2) {
           *(uint16_t *)p = _mm_cvtsi128_si32(res);
         } else if (w == 4) {
           *(uint32_t *)p = _mm_cvtsi128_si32(res);
         } else {
           _mm_storel_epi64(p, res);
         }
       }
     }
   }
 }

 static INLINE void copy_128(const uint8_t *src, uint8_t *dst) {
   __m128i s[8];
   s[0] = _mm_loadu_si128((__m128i *)(src + 0 * 16));
   s[1] = _mm_loadu_si128((__m128i *)(src + 1 * 16));
   s[2] = _mm_loadu_si128((__m128i *)(src + 2 * 16));
   s[3] = _mm_loadu_si128((__m128i *)(src + 3 * 16));
   s[4] = _mm_loadu_si128((__m128i *)(src + 4 * 16));
   s[5] = _mm_loadu_si128((__m128i *)(src + 5 * 16));
   s[6] = _mm_loadu_si128((__m128i *)(src + 6 * 16));
   s[7] = _mm_loadu_si128((__m128i *)(src + 7 * 16));
   _mm_store_si128((__m128i *)(dst + 0 * 16), s[0]);
   _mm_store_si128((__m128i *)(dst + 1 * 16), s[1]);
   _mm_store_si128((__m128i *)(dst + 2 * 16), s[2]);
   _mm_store_si128((__m128i *)(dst + 3 * 16), s[3]);
   _mm_store_si128((__m128i *)(dst + 4 * 16), s[4]);
   _mm_store_si128((__m128i *)(dst + 5 * 16), s[5]);
   _mm_store_si128((__m128i *)(dst + 6 * 16), s[6]);
   _mm_store_si128((__m128i *)(dst + 7 * 16), s[7]);
 }

 void av1_convolve_2d_copy_sr_sse2(const uint8_t *src, int src_stride,
                                   uint8_t *dst, int dst_stride, int w, int h,
                                   const InterpFilterParams *filter_params_x,
                                   const InterpFilterParams *filter_params_y,
                                   const int subpel_x_qn, const int subpel_y_qn,
                                   ConvolveParams *conv_params) {
   (void)filter_params_x;
   (void)filter_params_y;
   (void)subpel_x_qn;
   (void)subpel_y_qn;
   (void)conv_params;

   if (w >= 16) {
     assert(!((intptr_t)dst % 16));
     assert(!(dst_stride % 16));
   }

   if (w == 2) {
     do {
       memmove(dst, src, 2 * sizeof(*src));
       src += src_stride;
       dst += dst_stride;
       memmove(dst, src, 2 * sizeof(*src));
       src += src_stride;
       dst += dst_stride;
       h -= 2;
     } while (h);
   } else if (w == 4) {
     do {
       memmove(dst, src, 4 * sizeof(*src));
       src += src_stride;
       dst += dst_stride;
       memmove(dst, src, 4 * sizeof(*src));
       src += src_stride;
       dst += dst_stride;
       h -= 2;
     } while (h);
   } else if (w == 8) {
     do {
       __m128i s[2];
       s[0] = _mm_loadl_epi64((__m128i *)src);
       src += src_stride;
       s[1] = _mm_loadl_epi64((__m128i *)src);
       src += src_stride;
       _mm_storel_epi64((__m128i *)dst, s[0]);
       dst += dst_stride;
       _mm_storel_epi64((__m128i *)dst, s[1]);
       dst += dst_stride;
       h -= 2;
     } while (h);
   } else if (w == 16) {
     do {
       __m128i s[2];
       s[0] = _mm_loadu_si128((__m128i *)src);
       src += src_stride;
       s[1] = _mm_loadu_si128((__m128i *)src);
       src += src_stride;
       _mm_store_si128((__m128i *)dst, s[0]);
       dst += dst_stride;
       _mm_store_si128((__m128i *)dst, s[1]);
       dst += dst_stride;
       h -= 2;
     } while (h);
   } else if (w == 32) {
     do {
       __m128i s[4];
       s[0] = _mm_loadu_si128((__m128i *)(src + 0 * 16));
       s[1] = _mm_loadu_si128((__m128i *)(src + 1 * 16));
       src += src_stride;
       s[2] = _mm_loadu_si128((__m128i *)(src + 0 * 16));
       s[3] = _mm_loadu_si128((__m128i *)(src + 1 * 16));
       src += src_stride;
       _mm_store_si128((__m128i *)(dst + 0 * 16), s[0]);
       _mm_store_si128((__m128i *)(dst + 1 * 16), s[1]);
       dst += dst_stride;
       _mm_store_si128((__m128i *)(dst + 0 * 16), s[2]);
       _mm_store_si128((__m128i *)(dst + 1 * 16), s[3]);
       dst += dst_stride;
       h -= 2;
     } while (h);
   } else if (w == 64) {
     do {
       __m128i s[8];
       s[0] = _mm_loadu_si128((__m128i *)(src + 0 * 16));
       s[1] = _mm_loadu_si128((__m128i *)(src + 1 * 16));
       s[2] = _mm_loadu_si128((__m128i *)(src + 2 * 16));
       s[3] = _mm_loadu_si128((__m128i *)(src + 3 * 16));
       src += src_stride;
       s[4] = _mm_loadu_si128((__m128i *)(src + 0 * 16));
       s[5] = _mm_loadu_si128((__m128i *)(src + 1 * 16));
       s[6] = _mm_loadu_si128((__m128i *)(src + 2 * 16));
       s[7] = _mm_loadu_si128((__m128i *)(src + 3 * 16));
       src += src_stride;
       _mm_store_si128((__m128i *)(dst + 0 * 16), s[0]);
       _mm_store_si128((__m128i *)(dst + 1 * 16), s[1]);
       _mm_store_si128((__m128i *)(dst + 2 * 16), s[2]);
       _mm_store_si128((__m128i *)(dst + 3 * 16), s[3]);
       dst += dst_stride;
       _mm_store_si128((__m128i *)(dst + 0 * 16), s[4]);
       _mm_store_si128((__m128i *)(dst + 1 * 16), s[5]);
       _mm_store_si128((__m128i *)(dst + 2 * 16), s[6]);
       _mm_store_si128((__m128i *)(dst + 3 * 16), s[7]);
       dst += dst_stride;
       h -= 2;
     } while (h);
   } else {
     do {
       copy_128(src, dst);
       src += src_stride;
       dst += dst_stride;
       copy_128(src, dst);
       src += src_stride;
       dst += dst_stride;
       h -= 2;
     } while (h);
   }
 }

 void av1_dist_wtd_convolve_2d_copy_sse2(
     const uint8_t *src, int src_stride, uint8_t *dst0, int dst_stride0, int w,
     int h, const InterpFilterParams *filter_params_x,
     const InterpFilterParams *filter_params_y, const int subpel_x_qn,
     const int subpel_y_qn, ConvolveParams *conv_params) {
   const int bd = 8;
   CONV_BUF_TYPE *dst = conv_params->dst;
   int dst_stride = conv_params->dst_stride;
   (void)filter_params_x;
   (void)filter_params_y;
   (void)subpel_x_qn;
   (void)subpel_y_qn;

   const int bits =
       FILTER_BITS * 2 - conv_params->round_1 - conv_params->round_0;
   const int do_average = conv_params->do_average;
   const int use_dist_wtd_comp_avg = conv_params->use_dist_wtd_comp_avg;
   const __m128i zero = _mm_setzero_si128();
   const __m128i left_shift = _mm_cvtsi32_si128(bits);
   int i, j;

   const int w0 = conv_params->fwd_offset;
   const int w1 = conv_params->bck_offset;
   const __m128i wt0 = _mm_set1_epi16(w0);
   const __m128i wt1 = _mm_set1_epi16(w1);
   const __m128i wt = _mm_unpacklo_epi16(wt0, wt1);

   const int offset_0 =
       bd + 2 * FILTER_BITS - conv_params->round_0 - conv_params->round_1;
   const int offset = (1 << offset_0) + (1 << (offset_0 - 1));
   const __m128i offset_const = _mm_set1_epi16(offset);
   const int rounding_shift =
       2 * FILTER_BITS - conv_params->round_0 - conv_params->round_1;
   const __m128i rounding_const = _mm_set1_epi16((1 << rounding_shift) >> 1);

   assert((w % 4) == 0);

   if (!(w % 16)) {
     for (i = 0; i < h; ++i) {
       for (j = 0; j < w; j += 16) {
         const __m128i d8 = _mm_loadu_si128((__m128i *)&src[j]);

         const __m128i d16_lo = _mm_unpacklo_epi8(d8, zero);
         const __m128i d16_hi = _mm_unpackhi_epi8(d8, zero);

         const __m128i res_lo = _mm_sll_epi16(d16_lo, left_shift);
         const __m128i res_unsigned_lo = _mm_add_epi16(res_lo, offset_const);

         const __m128i res_hi = _mm_sll_epi16(d16_hi, left_shift);
         const __m128i res_unsigned_hi = _mm_add_epi16(res_hi, offset_const);

         if (do_average) {
           const __m128i data_ref_0_lo = _mm_loadu_si128((__m128i *)(&dst[j]));
           const __m128i data_ref_0_hi =
               _mm_loadu_si128((__m128i *)(&dst[j + 8]));

           const __m128i comp_avg_res_lo = comp_avg(
               &data_ref_0_lo, &res_unsigned_lo, &wt, use_dist_wtd_comp_avg);

           const __m128i round_result_lo = convolve_rounding(
               &comp_avg_res_lo, &offset_const, &rounding_const, rounding_shift);

           const __m128i comp_avg_res_hi = comp_avg(
               &data_ref_0_hi, &res_unsigned_hi, &wt, use_dist_wtd_comp_avg);

           const __m128i round_result_hi = convolve_rounding(
               &comp_avg_res_hi, &offset_const, &rounding_const, rounding_shift);

           const __m128i res_8 =
               _mm_packus_epi16(round_result_lo, round_result_hi);

           _mm_store_si128((__m128i *)(&dst0[j]), res_8);
         } else {
           _mm_store_si128((__m128i *)(&dst[j]), res_unsigned_lo);
           _mm_store_si128((__m128i *)(&dst[j + 8]), res_unsigned_hi);
         }
       }
       src += src_stride;
       dst += dst_stride;
       dst0 += dst_stride0;
     }
   } else {
     for (i = 0; i < h; ++i) {
       for (j = 0; j < w; j += 8) {
         const __m128i d8 = _mm_loadl_epi64((__m128i *)&src[j]);
         const __m128i d16_0 = _mm_unpacklo_epi8(d8, zero);

         const __m128i res = _mm_sll_epi16(d16_0, left_shift);
         const __m128i res_unsigned = _mm_add_epi16(res, offset_const);

         if (do_average) {
           const __m128i data_ref_0 = _mm_loadu_si128((__m128i *)(&dst[j]));

           const __m128i comp_avg_res =
               comp_avg(&data_ref_0, &res_unsigned, &wt, use_dist_wtd_comp_avg);

           const __m128i round_result = convolve_rounding(
               &comp_avg_res, &offset_const, &rounding_const, rounding_shift);

           const __m128i res_8 = _mm_packus_epi16(round_result, round_result);

           if (w > 4)
             _mm_storel_epi64((__m128i *)(&dst0[j]), res_8);
           else
             *(uint32_t *)(&dst0[j]) = _mm_cvtsi128_si32(res_8);
         } else {
           _mm_store_si128((__m128i *)(&dst[j]), res_unsigned);
         }
       }
       src += src_stride;
       dst += dst_stride;
       dst0 += dst_stride0;
     }
   }
 }
	/*
	* Copyright (c) 2016, 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 <emmintrin.h>

	#include "config/av1_rtcd.h"

	#include "aom_dsp/aom_dsp_common.h"
	#include "aom_dsp/aom_filter.h"
	#include "aom_dsp/x86/convolve_sse2.h"
	#include "av1/common/convolve.h"

	void av1_convolve_2d_sr_sse2(const uint8_t src, int src_stride, uint8_t dst,
	int dst_stride, int w, int h,
	const InterpFilterParams *filter_params_x,
	const InterpFilterParams *filter_params_y,
	const int subpel_x_qn, const int subpel_y_qn,
	ConvolveParams *conv_params) {
	const int bd = 8;

	DECLARE_ALIGNED(16, int16_t,
	im_block[(MAX_SB_SIZE + MAX_FILTER_TAP - 1) * MAX_SB_SIZE]);
	int im_h = h + filter_params_y->taps - 1;
	int im_stride = MAX_SB_SIZE;
	int i, j;
	const int fo_vert = filter_params_y->taps / 2 - 1;
	const int fo_horiz = filter_params_x->taps / 2 - 1;
	const uint8_t const src_ptr = src - fo_vert src_stride - fo_horiz;

	const __m128i zero = _mm_setzero_si128();
	const int bits =
	FILTER_BITS * 2 - conv_params->round_0 - conv_params->round_1;
	const int offset_bits = bd + 2 * FILTER_BITS - conv_params->round_0;

	assert(conv_params->round_0 > 0);

	/* Horizontal filter */
	{
	const int16_t *x_filter = av1_get_interp_filter_subpel_kernel(
	filter_params_x, subpel_x_qn & SUBPEL_MASK);
	const __m128i coeffs_x = _mm_loadu_si128((__m128i *)x_filter);

	// coeffs 0 1 0 1 2 3 2 3
	const __m128i tmp_0 = _mm_unpacklo_epi32(coeffs_x, coeffs_x);
	// coeffs 4 5 4 5 6 7 6 7
	const __m128i tmp_1 = _mm_unpackhi_epi32(coeffs_x, coeffs_x);

	// coeffs 0 1 0 1 0 1 0 1
	const __m128i coeff_01 = _mm_unpacklo_epi64(tmp_0, tmp_0);
	// coeffs 2 3 2 3 2 3 2 3
	const __m128i coeff_23 = _mm_unpackhi_epi64(tmp_0, tmp_0);
	// coeffs 4 5 4 5 4 5 4 5
	const __m128i coeff_45 = _mm_unpacklo_epi64(tmp_1, tmp_1);
	// coeffs 6 7 6 7 6 7 6 7
	const __m128i coeff_67 = _mm_unpackhi_epi64(tmp_1, tmp_1);

	const __m128i round_const = _mm_set1_epi32(
	(1 << (bd + FILTER_BITS - 1)) + ((1 << conv_params->round_0) >> 1));
	const __m128i round_shift = _mm_cvtsi32_si128(conv_params->round_0);

	for (i = 0; i < im_h; ++i) {
	for (j = 0; j < w; j += 8) {
	const __m128i data =
	_mm_loadu_si128((__m128i )&src_ptr[i src_stride + j]);

	// Filter even-index pixels
	const __m128i src_0 = _mm_unpacklo_epi8(data, zero);
	const __m128i res_0 = _mm_madd_epi16(src_0, coeff_01);
	const __m128i src_2 = _mm_unpacklo_epi8(_mm_srli_si128(data, 2), zero);
	const __m128i res_2 = _mm_madd_epi16(src_2, coeff_23);
	const __m128i src_4 = _mm_unpacklo_epi8(_mm_srli_si128(data, 4), zero);
	const __m128i res_4 = _mm_madd_epi16(src_4, coeff_45);
	const __m128i src_6 = _mm_unpacklo_epi8(_mm_srli_si128(data, 6), zero);
	const __m128i res_6 = _mm_madd_epi16(src_6, coeff_67);

	__m128i res_even = _mm_add_epi32(_mm_add_epi32(res_0, res_4),
	_mm_add_epi32(res_2, res_6));
	res_even =
	_mm_sra_epi32(_mm_add_epi32(res_even, round_const), round_shift);

	// Filter odd-index pixels
	const __m128i src_1 = _mm_unpacklo_epi8(_mm_srli_si128(data, 1), zero);
	const __m128i res_1 = _mm_madd_epi16(src_1, coeff_01);
	const __m128i src_3 = _mm_unpacklo_epi8(_mm_srli_si128(data, 3), zero);
	const __m128i res_3 = _mm_madd_epi16(src_3, coeff_23);
	const __m128i src_5 = _mm_unpacklo_epi8(_mm_srli_si128(data, 5), zero);
	const __m128i res_5 = _mm_madd_epi16(src_5, coeff_45);
	const __m128i src_7 = _mm_unpacklo_epi8(_mm_srli_si128(data, 7), zero);
	const __m128i res_7 = _mm_madd_epi16(src_7, coeff_67);

	__m128i res_odd = _mm_add_epi32(_mm_add_epi32(res_1, res_5),
	_mm_add_epi32(res_3, res_7));
	res_odd =
	_mm_sra_epi32(_mm_add_epi32(res_odd, round_const), round_shift);

	// Pack in the column order 0, 2, 4, 6, 1, 3, 5, 7
	__m128i res = _mm_packs_epi32(res_even, res_odd);
	_mm_storeu_si128((__m128i )&im_block[i im_stride + j], res);
	}
	}
	}

	/* Vertical filter */
	{
	const int16_t *y_filter = av1_get_interp_filter_subpel_kernel(
	filter_params_y, subpel_y_qn & SUBPEL_MASK);
	const __m128i coeffs_y = _mm_loadu_si128((__m128i *)y_filter);

	// coeffs 0 1 0 1 2 3 2 3
	const __m128i tmp_0 = _mm_unpacklo_epi32(coeffs_y, coeffs_y);
	// coeffs 4 5 4 5 6 7 6 7
	const __m128i tmp_1 = _mm_unpackhi_epi32(coeffs_y, coeffs_y);

	// coeffs 0 1 0 1 0 1 0 1
	const __m128i coeff_01 = _mm_unpacklo_epi64(tmp_0, tmp_0);
	// coeffs 2 3 2 3 2 3 2 3
	const __m128i coeff_23 = _mm_unpackhi_epi64(tmp_0, tmp_0);
	// coeffs 4 5 4 5 4 5 4 5
	const __m128i coeff_45 = _mm_unpacklo_epi64(tmp_1, tmp_1);
	// coeffs 6 7 6 7 6 7 6 7
	const __m128i coeff_67 = _mm_unpackhi_epi64(tmp_1, tmp_1);

	const __m128i sum_round =
	_mm_set1_epi32((1 << offset_bits) + ((1 << conv_params->round_1) >> 1));
	const __m128i sum_shift = _mm_cvtsi32_si128(conv_params->round_1);

	const __m128i round_const = _mm_set1_epi32(
	((1 << bits) >> 1) - (1 << (offset_bits - conv_params->round_1)) -
	((1 << (offset_bits - conv_params->round_1)) >> 1));
	const __m128i round_shift = _mm_cvtsi32_si128(bits);

	for (i = 0; i < h; ++i) {
	for (j = 0; j < w; j += 8) {
	// Filter even-index pixels
	const int16_t data = &im_block[i im_stride + j];
	const __m128i src_0 =
	_mm_unpacklo_epi16((__m128i )(data + 0 * im_stride),
	(__m128i )(data + 1 * im_stride));
	const __m128i src_2 =
	_mm_unpacklo_epi16((__m128i )(data + 2 * im_stride),
	(__m128i )(data + 3 * im_stride));
	const __m128i src_4 =
	_mm_unpacklo_epi16((__m128i )(data + 4 * im_stride),
	(__m128i )(data + 5 * im_stride));
	const __m128i src_6 =
	_mm_unpacklo_epi16((__m128i )(data + 6 * im_stride),
	(__m128i )(data + 7 * im_stride));

	const __m128i res_0 = _mm_madd_epi16(src_0, coeff_01);
	const __m128i res_2 = _mm_madd_epi16(src_2, coeff_23);
	const __m128i res_4 = _mm_madd_epi16(src_4, coeff_45);
	const __m128i res_6 = _mm_madd_epi16(src_6, coeff_67);

	const __m128i res_even = _mm_add_epi32(_mm_add_epi32(res_0, res_2),
	_mm_add_epi32(res_4, res_6));

	// Filter odd-index pixels
	const __m128i src_1 =
	_mm_unpackhi_epi16((__m128i )(data + 0 * im_stride),
	(__m128i )(data + 1 * im_stride));
	const __m128i src_3 =
	_mm_unpackhi_epi16((__m128i )(data + 2 * im_stride),
	(__m128i )(data + 3 * im_stride));
	const __m128i src_5 =
	_mm_unpackhi_epi16((__m128i )(data + 4 * im_stride),
	(__m128i )(data + 5 * im_stride));
	const __m128i src_7 =
	_mm_unpackhi_epi16((__m128i )(data + 6 * im_stride),
	(__m128i )(data + 7 * im_stride));

	const __m128i res_1 = _mm_madd_epi16(src_1, coeff_01);
	const __m128i res_3 = _mm_madd_epi16(src_3, coeff_23);
	const __m128i res_5 = _mm_madd_epi16(src_5, coeff_45);
	const __m128i res_7 = _mm_madd_epi16(src_7, coeff_67);

	const __m128i res_odd = _mm_add_epi32(_mm_add_epi32(res_1, res_3),
	_mm_add_epi32(res_5, res_7));

	// Rearrange pixels back into the order 0 ... 7
	const __m128i res_lo = _mm_unpacklo_epi32(res_even, res_odd);
	const __m128i res_hi = _mm_unpackhi_epi32(res_even, res_odd);

	__m128i res_lo_round =
	_mm_sra_epi32(_mm_add_epi32(res_lo, sum_round), sum_shift);
	__m128i res_hi_round =
	_mm_sra_epi32(_mm_add_epi32(res_hi, sum_round), sum_shift);

	res_lo_round = _mm_sra_epi32(_mm_add_epi32(res_lo_round, round_const),
	round_shift);
	res_hi_round = _mm_sra_epi32(_mm_add_epi32(res_hi_round, round_const),
	round_shift);

	const __m128i res16 = _mm_packs_epi32(res_lo_round, res_hi_round);
	const __m128i res = _mm_packus_epi16(res16, res16);

	// Accumulate values into the destination buffer
	__m128i const p = (__m128i )&dst[i * dst_stride + j];

	if (w == 2) {
	(uint16_t )p = _mm_cvtsi128_si32(res);
	} else if (w == 4) {
	(uint32_t )p = _mm_cvtsi128_si32(res);
	} else {
	_mm_storel_epi64(p, res);
	}
	}
	}
	}
	}

	static INLINE void copy_128(const uint8_t src, uint8_t dst) {
	__m128i s[8];
	s[0] = _mm_loadu_si128((__m128i )(src + 0 16));
	s[1] = _mm_loadu_si128((__m128i )(src + 1 16));
	s[2] = _mm_loadu_si128((__m128i )(src + 2 16));
	s[3] = _mm_loadu_si128((__m128i )(src + 3 16));
	s[4] = _mm_loadu_si128((__m128i )(src + 4 16));
	s[5] = _mm_loadu_si128((__m128i )(src + 5 16));
	s[6] = _mm_loadu_si128((__m128i )(src + 6 16));
	s[7] = _mm_loadu_si128((__m128i )(src + 7 16));
	_mm_store_si128((__m128i )(dst + 0 16), s[0]);
	_mm_store_si128((__m128i )(dst + 1 16), s[1]);
	_mm_store_si128((__m128i )(dst + 2 16), s[2]);
	_mm_store_si128((__m128i )(dst + 3 16), s[3]);
	_mm_store_si128((__m128i )(dst + 4 16), s[4]);
	_mm_store_si128((__m128i )(dst + 5 16), s[5]);
	_mm_store_si128((__m128i )(dst + 6 16), s[6]);
	_mm_store_si128((__m128i )(dst + 7 16), s[7]);
	}

	void av1_convolve_2d_copy_sr_sse2(const uint8_t *src, int src_stride,
	uint8_t *dst, int dst_stride, int w, int h,
	const InterpFilterParams *filter_params_x,
	const InterpFilterParams *filter_params_y,
	const int subpel_x_qn, const int subpel_y_qn,
	ConvolveParams *conv_params) {
	(void)filter_params_x;
	(void)filter_params_y;
	(void)subpel_x_qn;
	(void)subpel_y_qn;
	(void)conv_params;

	if (w >= 16) {
	assert(!((intptr_t)dst % 16));
	assert(!(dst_stride % 16));
	}

	if (w == 2) {
	do {
	memmove(dst, src, 2 * sizeof(*src));
	src += src_stride;
	dst += dst_stride;
	memmove(dst, src, 2 * sizeof(*src));
	src += src_stride;
	dst += dst_stride;
	h -= 2;
	} while (h);
	} else if (w == 4) {
	do {
	memmove(dst, src, 4 * sizeof(*src));
	src += src_stride;
	dst += dst_stride;
	memmove(dst, src, 4 * sizeof(*src));
	src += src_stride;
	dst += dst_stride;
	h -= 2;
	} while (h);
	} else if (w == 8) {
	do {
	__m128i s[2];
	s[0] = _mm_loadl_epi64((__m128i *)src);
	src += src_stride;
	s[1] = _mm_loadl_epi64((__m128i *)src);
	src += src_stride;
	_mm_storel_epi64((__m128i *)dst, s[0]);
	dst += dst_stride;
	_mm_storel_epi64((__m128i *)dst, s[1]);
	dst += dst_stride;
	h -= 2;
	} while (h);
	} else if (w == 16) {
	do {
	__m128i s[2];
	s[0] = _mm_loadu_si128((__m128i *)src);
	src += src_stride;
	s[1] = _mm_loadu_si128((__m128i *)src);
	src += src_stride;
	_mm_store_si128((__m128i *)dst, s[0]);
	dst += dst_stride;
	_mm_store_si128((__m128i *)dst, s[1]);
	dst += dst_stride;
	h -= 2;
	} while (h);
	} else if (w == 32) {
	do {
	__m128i s[4];
	s[0] = _mm_loadu_si128((__m128i )(src + 0 16));
	s[1] = _mm_loadu_si128((__m128i )(src + 1 16));
	src += src_stride;
	s[2] = _mm_loadu_si128((__m128i )(src + 0 16));
	s[3] = _mm_loadu_si128((__m128i )(src + 1 16));
	src += src_stride;
	_mm_store_si128((__m128i )(dst + 0 16), s[0]);
	_mm_store_si128((__m128i )(dst + 1 16), s[1]);
	dst += dst_stride;
	_mm_store_si128((__m128i )(dst + 0 16), s[2]);
	_mm_store_si128((__m128i )(dst + 1 16), s[3]);
	dst += dst_stride;
	h -= 2;
	} while (h);
	} else if (w == 64) {
	do {
	__m128i s[8];
	s[0] = _mm_loadu_si128((__m128i )(src + 0 16));
	s[1] = _mm_loadu_si128((__m128i )(src + 1 16));
	s[2] = _mm_loadu_si128((__m128i )(src + 2 16));
	s[3] = _mm_loadu_si128((__m128i )(src + 3 16));
	src += src_stride;
	s[4] = _mm_loadu_si128((__m128i )(src + 0 16));
	s[5] = _mm_loadu_si128((__m128i )(src + 1 16));
	s[6] = _mm_loadu_si128((__m128i )(src + 2 16));
	s[7] = _mm_loadu_si128((__m128i )(src + 3 16));
	src += src_stride;
	_mm_store_si128((__m128i )(dst + 0 16), s[0]);
	_mm_store_si128((__m128i )(dst + 1 16), s[1]);
	_mm_store_si128((__m128i )(dst + 2 16), s[2]);
	_mm_store_si128((__m128i )(dst + 3 16), s[3]);
	dst += dst_stride;
	_mm_store_si128((__m128i )(dst + 0 16), s[4]);
	_mm_store_si128((__m128i )(dst + 1 16), s[5]);
	_mm_store_si128((__m128i )(dst + 2 16), s[6]);
	_mm_store_si128((__m128i )(dst + 3 16), s[7]);
	dst += dst_stride;
	h -= 2;
	} while (h);
	} else {
	do {
	copy_128(src, dst);
	src += src_stride;
	dst += dst_stride;
	copy_128(src, dst);
	src += src_stride;
	dst += dst_stride;
	h -= 2;
	} while (h);
	}
	}

	void av1_dist_wtd_convolve_2d_copy_sse2(
	const uint8_t src, int src_stride, uint8_t dst0, int dst_stride0, int w,
	int h, const InterpFilterParams *filter_params_x,
	const InterpFilterParams *filter_params_y, const int subpel_x_qn,
	const int subpel_y_qn, ConvolveParams *conv_params) {
	const int bd = 8;
	CONV_BUF_TYPE *dst = conv_params->dst;
	int dst_stride = conv_params->dst_stride;
	(void)filter_params_x;
	(void)filter_params_y;
	(void)subpel_x_qn;
	(void)subpel_y_qn;

	const int bits =
	FILTER_BITS * 2 - conv_params->round_1 - conv_params->round_0;
	const int do_average = conv_params->do_average;
	const int use_dist_wtd_comp_avg = conv_params->use_dist_wtd_comp_avg;
	const __m128i zero = _mm_setzero_si128();
	const __m128i left_shift = _mm_cvtsi32_si128(bits);
	int i, j;

	const int w0 = conv_params->fwd_offset;
	const int w1 = conv_params->bck_offset;
	const __m128i wt0 = _mm_set1_epi16(w0);
	const __m128i wt1 = _mm_set1_epi16(w1);
	const __m128i wt = _mm_unpacklo_epi16(wt0, wt1);

	const int offset_0 =
	bd + 2 * FILTER_BITS - conv_params->round_0 - conv_params->round_1;
	const int offset = (1 << offset_0) + (1 << (offset_0 - 1));
	const __m128i offset_const = _mm_set1_epi16(offset);
	const int rounding_shift =
	2 * FILTER_BITS - conv_params->round_0 - conv_params->round_1;
	const __m128i rounding_const = _mm_set1_epi16((1 << rounding_shift) >> 1);

	assert((w % 4) == 0);

	if (!(w % 16)) {
	for (i = 0; i < h; ++i) {
	for (j = 0; j < w; j += 16) {
	const __m128i d8 = _mm_loadu_si128((__m128i *)&src[j]);

	const __m128i d16_lo = _mm_unpacklo_epi8(d8, zero);
	const __m128i d16_hi = _mm_unpackhi_epi8(d8, zero);

	const __m128i res_lo = _mm_sll_epi16(d16_lo, left_shift);
	const __m128i res_unsigned_lo = _mm_add_epi16(res_lo, offset_const);

	const __m128i res_hi = _mm_sll_epi16(d16_hi, left_shift);
	const __m128i res_unsigned_hi = _mm_add_epi16(res_hi, offset_const);

	if (do_average) {
	const __m128i data_ref_0_lo = _mm_loadu_si128((__m128i *)(&dst[j]));
	const __m128i data_ref_0_hi =
	_mm_loadu_si128((__m128i *)(&dst[j + 8]));

	const __m128i comp_avg_res_lo = comp_avg(
	&data_ref_0_lo, &res_unsigned_lo, &wt, use_dist_wtd_comp_avg);

	const __m128i round_result_lo = convolve_rounding(
	&comp_avg_res_lo, &offset_const, &rounding_const, rounding_shift);

	const __m128i comp_avg_res_hi = comp_avg(
	&data_ref_0_hi, &res_unsigned_hi, &wt, use_dist_wtd_comp_avg);

	const __m128i round_result_hi = convolve_rounding(
	&comp_avg_res_hi, &offset_const, &rounding_const, rounding_shift);

	const __m128i res_8 =
	_mm_packus_epi16(round_result_lo, round_result_hi);

	_mm_store_si128((__m128i *)(&dst0[j]), res_8);
	} else {
	_mm_store_si128((__m128i *)(&dst[j]), res_unsigned_lo);
	_mm_store_si128((__m128i *)(&dst[j + 8]), res_unsigned_hi);
	}
	}
	src += src_stride;
	dst += dst_stride;
	dst0 += dst_stride0;
	}
	} else {
	for (i = 0; i < h; ++i) {
	for (j = 0; j < w; j += 8) {
	const __m128i d8 = _mm_loadl_epi64((__m128i *)&src[j]);
	const __m128i d16_0 = _mm_unpacklo_epi8(d8, zero);

	const __m128i res = _mm_sll_epi16(d16_0, left_shift);
	const __m128i res_unsigned = _mm_add_epi16(res, offset_const);

	if (do_average) {
	const __m128i data_ref_0 = _mm_loadu_si128((__m128i *)(&dst[j]));

	const __m128i comp_avg_res =
	comp_avg(&data_ref_0, &res_unsigned, &wt, use_dist_wtd_comp_avg);

	const __m128i round_result = convolve_rounding(
	&comp_avg_res, &offset_const, &rounding_const, rounding_shift);

	const __m128i res_8 = _mm_packus_epi16(round_result, round_result);

	if (w > 4)
	_mm_storel_epi64((__m128i *)(&dst0[j]), res_8);
	else
	(uint32_t )(&dst0[j]) = _mm_cvtsi128_si32(res_8);
	} else {
	_mm_store_si128((__m128i *)(&dst[j]), res_unsigned);
	}
	}
	src += src_stride;
	dst += dst_stride;
	dst0 += dst_stride0;
	}
	}
	}