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/*
* Copyright (c) 2020, 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 <immintrin.h>
#include "config/av1_rtcd.h"
#include "av1/common/warped_motion.h"
void av1_highbd_warp_affine_avx2(const int32_t *mat, const uint16_t *ref,
int width, int height, int stride,
uint16_t *pred, int p_col, int p_row,
int p_width, int p_height, int p_stride,
int subsampling_x, int subsampling_y, int bd,
ConvolveParams *conv_params, int16_t alpha,
int16_t beta, int16_t gamma, int16_t delta) {
__m256i tmp[15];
const int reduce_bits_horiz =
conv_params->round_0 +
AOMMAX(bd + FILTER_BITS - conv_params->round_0 - 14, 0);
const int reduce_bits_vert = conv_params->is_compound
? conv_params->round_1
: 2 * FILTER_BITS - reduce_bits_horiz;
const int max_bits_horiz = bd + FILTER_BITS + 1 - reduce_bits_horiz;
const int offset_bits_horiz = bd + FILTER_BITS - 1;
const int offset_bits_vert = bd + 2 * FILTER_BITS - reduce_bits_horiz;
const int round_bits =
2 * FILTER_BITS - conv_params->round_0 - conv_params->round_1;
const int offset_bits = bd + 2 * FILTER_BITS - conv_params->round_0;
(void)max_bits_horiz;
assert(IMPLIES(conv_params->is_compound, conv_params->dst != NULL));
const __m256i clip_pixel =
_mm256_set1_epi16(bd == 10 ? 1023 : (bd == 12 ? 4095 : 255));
const __m128i reduce_bits_vert_shift = _mm_cvtsi32_si128(reduce_bits_vert);
const __m256i reduce_bits_vert_const =
_mm256_set1_epi32(((1 << reduce_bits_vert) >> 1));
const __m256i res_add_const = _mm256_set1_epi32(1 << offset_bits_vert);
const __m256i res_sub_const =
_mm256_set1_epi32(-(1 << (offset_bits - conv_params->round_1)) -
(1 << (offset_bits - conv_params->round_1 - 1)));
__m128i round_bits_shift = _mm_cvtsi32_si128(round_bits);
__m256i round_bits_const = _mm256_set1_epi32(((1 << round_bits) >> 1));
const int w0 = conv_params->fwd_offset;
const int w1 = conv_params->bck_offset;
const __m256i wt0 = _mm256_set1_epi32(w0);
const __m256i wt1 = _mm256_set1_epi32(w1);
__m256i v_rbhoriz = _mm256_set1_epi32(1 << (reduce_bits_horiz - 1));
__m256i v_zeros = _mm256_setzero_si256();
int ohoriz = 1 << offset_bits_horiz;
int mhoriz = 1 << max_bits_horiz;
(void)mhoriz;
int sx;
for (int i = 0; i < p_height; i += 8) {
for (int j = 0; j < p_width; j += 8) {
// Calculate the center of this 8x8 block,
// project to luma coordinates (if in a subsampled chroma plane),
// apply the affine transformation,
// then convert back to the original coordinates (if necessary)
const int32_t src_x = (p_col + j + 4) << subsampling_x;
const int32_t src_y = (p_row + i + 4) << subsampling_y;
const int64_t dst_x =
(int64_t)mat[2] * src_x + (int64_t)mat[3] * src_y + (int64_t)mat[0];
const int64_t dst_y =
(int64_t)mat[4] * src_x + (int64_t)mat[5] * src_y + (int64_t)mat[1];
const int64_t x4 = dst_x >> subsampling_x;
const int64_t y4 = dst_y >> subsampling_y;
const int16_t ix4 = (int32_t)(x4 >> WARPEDMODEL_PREC_BITS);
int32_t sx4 = x4 & ((1 << WARPEDMODEL_PREC_BITS) - 1);
const int16_t iy4 = (int32_t)(y4 >> WARPEDMODEL_PREC_BITS);
int32_t sy4 = y4 & ((1 << WARPEDMODEL_PREC_BITS) - 1);
sx4 += alpha * (-4) + beta * (-4) + (1 << (WARPEDDIFF_PREC_BITS - 1)) +
(WARPEDPIXEL_PREC_SHIFTS << WARPEDDIFF_PREC_BITS);
sy4 += gamma * (-4) + delta * (-4) + (1 << (WARPEDDIFF_PREC_BITS - 1)) +
(WARPEDPIXEL_PREC_SHIFTS << WARPEDDIFF_PREC_BITS);
sx4 &= ~((1 << WARP_PARAM_REDUCE_BITS) - 1);
sy4 &= ~((1 << WARP_PARAM_REDUCE_BITS) - 1);
// Horizontal filter
if (ix4 <= -7) {
for (int k = -7; k < AOMMIN(8, p_height - i); ++k) {
int iy = iy4 + k;
if (iy < 0)
iy = 0;
else if (iy > height - 1)
iy = height - 1;
tmp[k + 7] = _mm256_cvtepi16_epi32(_mm_set1_epi16(
(1 << (bd + FILTER_BITS - reduce_bits_horiz - 1)) +
ref[iy * stride] * (1 << (FILTER_BITS - reduce_bits_horiz))));
}
} else if (ix4 >= width + 6) {
for (int k = -7; k < AOMMIN(8, p_height - i); ++k) {
int iy = iy4 + k;
if (iy < 0)
iy = 0;
else if (iy > height - 1)
iy = height - 1;
tmp[k + 7] = _mm256_cvtepi16_epi32(
_mm_set1_epi16((1 << (bd + FILTER_BITS - reduce_bits_horiz - 1)) +
ref[iy * stride + (width - 1)] *
(1 << (FILTER_BITS - reduce_bits_horiz))));
}
} else if (((ix4 - 7) < 0) || ((ix4 + 9) > width)) {
int32_t tmp1[8];
for (int k = -7; k < AOMMIN(8, p_height - i); ++k) {
const int iy = clamp(iy4 + k, 0, height - 1);
sx = sx4 + beta * (k + 4);
for (int l = -4; l < 4; ++l) {
int ix = ix4 + l - 3;
const int offs = sx >> WARPEDDIFF_PREC_BITS;
const int16_t *coeffs = av1_warped_filter[offs];
int32_t sum = 1 << offset_bits_horiz;
for (int m = 0; m < 8; ++m) {
const int sample_x = clamp(ix + m, 0, width - 1);
sum += ref[iy * stride + sample_x] * coeffs[m];
}
sum = ROUND_POWER_OF_TWO(sum, reduce_bits_horiz);
tmp1[(l + 4) / 2 + ((l + 4) % 2) * 4] = sum;
sx += alpha;
}
tmp[k + 7] = _mm256_loadu_si256((__m256i *)tmp1);
}
} else {
if (beta == 0 && alpha == 0) {
sx = sx4;
__m128i v_01 = _mm_loadu_si128(
(__m128i *)
av1_warped_filter[sx >>
WARPEDDIFF_PREC_BITS]); // A7A6A5A4A3A2A1A0
__m256i v_c01 = _mm256_broadcastd_epi32(v_01); // A1A0A1A0A1A0A1A0
__m256i v_c23 = _mm256_broadcastd_epi32(
_mm_shuffle_epi32(v_01, 1)); // A3A2A3A2A3A2A3A2
__m256i v_c45 = _mm256_broadcastd_epi32(
_mm_shuffle_epi32(v_01, 2)); // A5A4A5A4A5A4A5A4
__m256i v_c67 = _mm256_broadcastd_epi32(
_mm_shuffle_epi32(v_01, 3)); // A7A6A7A6A7A6A7A6
for (int k = -7; k < AOMMIN(8, p_height - i); ++k) {
int iy = iy4 + k;
if (iy < 0)
iy = 0;
else if (iy > height - 1)
iy = height - 1;
iy = iy * stride;
__m256i v_refl = _mm256_inserti128_si256(
_mm256_set1_epi16(0),
_mm_loadu_si128((__m128i *)&ref[iy + ix4 - 7]), 0);
v_refl = _mm256_inserti128_si256(
v_refl, _mm_loadu_si128((__m128i *)&ref[iy + ix4 + 1]),
1); // R15 .. R0
__m256i v_ref = _mm256_permute4x64_epi64(v_refl, 0xEE);
__m256i v_refu =
_mm256_alignr_epi8(v_ref, v_refl, 2); // R8R15R14...R2R1
v_refl = _mm256_inserti128_si256(
v_refl, _mm256_extracti128_si256(v_refu, 0), 1);
v_refu = _mm256_inserti128_si256(
v_refu, _mm256_extracti128_si256(v_ref, 0), 0);
__m256i v_sum = _mm256_set1_epi32(ohoriz);
__m256i parsum = _mm256_madd_epi16(
v_c01, _mm256_alignr_epi8(v_refu, v_refl,
0)); // R8R7R6..R1R7R6R5..R1R0
__m256i v_sum1 = _mm256_add_epi32(v_sum, parsum);
parsum = _mm256_madd_epi16(
v_c23,
_mm256_alignr_epi8(v_refu, v_refl, 4)); // R10R9..R3R9R8..R3R2
__m256i v_sum2 = _mm256_add_epi32(v_sum1, parsum);
parsum = _mm256_madd_epi16(
v_c45, _mm256_alignr_epi8(v_refu, v_refl,
8)); // R12R11..R5R11R10..R5R4
__m256i v_sum3 = _mm256_add_epi32(v_sum2, parsum);
parsum = _mm256_madd_epi16(
v_c67, _mm256_alignr_epi8(v_refu, v_refl,
12)); // R14R13..R7R13R12..R7R6
__m256i v_sum4 = _mm256_add_epi32(v_sum3, parsum);
tmp[k + 7] = _mm256_srai_epi32(_mm256_add_epi32(v_sum4, v_rbhoriz),
reduce_bits_horiz);
}
} else if (alpha == 0) {
for (int k = -7; k < AOMMIN(8, p_height - i); ++k) {
int iy = iy4 + k;
if (iy < 0)
iy = 0;
else if (iy > height - 1)
iy = height - 1;
iy = iy * stride;
sx = sx4 + beta * (k + 4);
__m128i v_01 = _mm_loadu_si128(
(__m128i *)av1_warped_filter
[sx >> WARPEDDIFF_PREC_BITS]); // A7A6A5A4A3A2A1A0
__m256i v_c01 = _mm256_broadcastd_epi32(v_01); // A1A0A1A0A1A0A1A0
__m256i v_c23 = _mm256_broadcastd_epi32(
_mm_shuffle_epi32(v_01, 1)); // A3A2A3A2A3A2A3A2
__m256i v_c45 = _mm256_broadcastd_epi32(
_mm_shuffle_epi32(v_01, 2)); // A5A4A5A4A5A4A5A4
__m256i v_c67 = _mm256_broadcastd_epi32(
_mm_shuffle_epi32(v_01, 3)); // A7A6A7A6A7A6A7A6
__m256i v_refl = _mm256_inserti128_si256(
_mm256_set1_epi16(0),
_mm_loadu_si128((__m128i *)&ref[iy + ix4 - 7]), 0);
v_refl = _mm256_inserti128_si256(
v_refl, _mm_loadu_si128((__m128i *)&ref[iy + ix4 + 1]),
1); // R15 .. R0
__m256i v_ref = _mm256_permute4x64_epi64(v_refl, 0xEE);
__m256i v_refu =
_mm256_alignr_epi8(v_ref, v_refl, 2); // R8R15R14...R2R1
v_refl = _mm256_inserti128_si256(
v_refl, _mm256_extracti128_si256(v_refu, 0), 1);
v_refu = _mm256_inserti128_si256(
v_refu, _mm256_extracti128_si256(v_ref, 0), 0);
__m256i v_sum = _mm256_set1_epi32(ohoriz);
__m256i parsum =
_mm256_madd_epi16(v_c01, _mm256_alignr_epi8(v_refu, v_refl, 0));
__m256i v_sum1 = _mm256_add_epi32(v_sum, parsum);
parsum =
_mm256_madd_epi16(v_c23, _mm256_alignr_epi8(v_refu, v_refl, 4));
__m256i v_sum2 = _mm256_add_epi32(v_sum1, parsum);
parsum =
_mm256_madd_epi16(v_c45, _mm256_alignr_epi8(v_refu, v_refl, 8));
__m256i v_sum3 = _mm256_add_epi32(v_sum2, parsum);
parsum = _mm256_madd_epi16(v_c67,
_mm256_alignr_epi8(v_refu, v_refl, 12));
__m256i v_sum4 = _mm256_add_epi32(v_sum3, parsum);
tmp[k + 7] = _mm256_srai_epi32(_mm256_add_epi32(v_sum4, v_rbhoriz),
reduce_bits_horiz);
}
} else if (beta == 0) {
sx = sx4;
__m256i v_coeff01 = _mm256_inserti128_si256(
v_zeros,
_mm_loadu_si128(
(__m128i *)av1_warped_filter[(sx) >> WARPEDDIFF_PREC_BITS]),
0);
v_coeff01 = _mm256_inserti128_si256(
v_coeff01,
_mm_loadu_si128(
(__m128i *)
av1_warped_filter[(sx + alpha) >> WARPEDDIFF_PREC_BITS]),
1); // B7B6..B1B0A7A6..A1A0
__m256i v_coeff23 = _mm256_inserti128_si256(
v_zeros,
_mm_loadu_si128(
(__m128i *)av1_warped_filter[(sx + 2 * alpha) >>
WARPEDDIFF_PREC_BITS]),
0);
v_coeff23 = _mm256_inserti128_si256(
v_coeff23,
_mm_loadu_si128(
(__m128i *)av1_warped_filter[(sx + 3 * alpha) >>
WARPEDDIFF_PREC_BITS]),
1); // D7D6..D1D0C7C6..C1C0
__m256i v_coeff45 = _mm256_inserti128_si256(
v_zeros,
_mm_loadu_si128(
(__m128i *)av1_warped_filter[(sx + 4 * alpha) >>
WARPEDDIFF_PREC_BITS]),
0);
v_coeff45 = _mm256_inserti128_si256(
v_coeff45,
_mm_loadu_si128(
(__m128i *)av1_warped_filter[(sx + 5 * alpha) >>
WARPEDDIFF_PREC_BITS]),
1); // F7F6..F1F0E7E6..E1E0
__m256i v_coeff67 = _mm256_inserti128_si256(
v_zeros,
_mm_loadu_si128(
(__m128i *)av1_warped_filter[(sx + 6 * alpha) >>
WARPEDDIFF_PREC_BITS]),
0);
v_coeff67 = _mm256_inserti128_si256(
v_coeff67,
_mm_loadu_si128(
(__m128i *)av1_warped_filter[(sx + 7 * alpha) >>
WARPEDDIFF_PREC_BITS]),
1); // H7H6..H1H0G7G6..G1G0
__m256i v_c0123 = _mm256_unpacklo_epi32(
v_coeff01,
v_coeff23); // D3D2B3B2D1D0B1B0C3C2A3A2C1C0A1A0
__m256i v_c0123u = _mm256_unpackhi_epi32(
v_coeff01,
v_coeff23); // D7D6B7B6D5D4B5B4C7C6A7A6C5C4A5A4
__m256i v_c4567 = _mm256_unpacklo_epi32(
v_coeff45,
v_coeff67); // H3H2F3F2H1H0F1F0G3G2E3E2G1G0E1E0
__m256i v_c4567u = _mm256_unpackhi_epi32(
v_coeff45,
v_coeff67); // H7H6F7F6H5H4F5F4G7G6E7E6G5G4E5E4
__m256i v_c01 = _mm256_unpacklo_epi64(
v_c0123, v_c4567); // H1H0F1F0D1D0B1B0G1G0E1E0C1C0A1A0
__m256i v_c23 =
_mm256_unpackhi_epi64(v_c0123, v_c4567); // H3H2 ... A3A2
__m256i v_c45 =
_mm256_unpacklo_epi64(v_c0123u, v_c4567u); // H5H4 ... A5A4
__m256i v_c67 =
_mm256_unpackhi_epi64(v_c0123u, v_c4567u); // H7H6 ... A7A6
for (int k = -7; k < AOMMIN(8, p_height - i); ++k) {
int iy = iy4 + k;
if (iy < 0)
iy = 0;
else if (iy > height - 1)
iy = height - 1;
iy = iy * stride;
__m256i v_refl = _mm256_inserti128_si256(
_mm256_set1_epi16(0),
_mm_loadu_si128((__m128i *)&ref[iy + ix4 - 7]), 0);
v_refl = _mm256_inserti128_si256(
v_refl, _mm_loadu_si128((__m128i *)&ref[iy + ix4 + 1]),
1); // R15 .. R0
__m256i v_ref = _mm256_permute4x64_epi64(v_refl, 0xEE);
__m256i v_refu =
_mm256_alignr_epi8(v_ref, v_refl, 2); // R8R15R14...R2R1
v_refl = _mm256_inserti128_si256(
v_refl, _mm256_extracti128_si256(v_refu, 0), 1);
v_refu = _mm256_inserti128_si256(
v_refu, _mm256_extracti128_si256(v_ref, 0), 0);
__m256i v_sum = _mm256_set1_epi32(ohoriz);
__m256i parsum = _mm256_madd_epi16(
v_c01, _mm256_alignr_epi8(v_refu, v_refl,
0)); // R8R7R6..R1R7R6R5..R1R0
__m256i v_sum1 = _mm256_add_epi32(v_sum, parsum);
parsum = _mm256_madd_epi16(
v_c23,
_mm256_alignr_epi8(v_refu, v_refl, 4)); // R10R9..R3R9R8..R3R2
__m256i v_sum2 = _mm256_add_epi32(v_sum1, parsum);
parsum = _mm256_madd_epi16(
v_c45, _mm256_alignr_epi8(v_refu, v_refl,
8)); // R12R11..R5R11R10..R5R4
__m256i v_sum3 = _mm256_add_epi32(v_sum2, parsum);
parsum = _mm256_madd_epi16(
v_c67, _mm256_alignr_epi8(v_refu, v_refl,
12)); // R14R13..R7R13R12..R7R6
__m256i v_sum4 = _mm256_add_epi32(v_sum3, parsum);
tmp[k + 7] = _mm256_srai_epi32(_mm256_add_epi32(v_sum4, v_rbhoriz),
reduce_bits_horiz);
}
} else {
for (int k = -7; k < AOMMIN(8, p_height - i); ++k) {
int iy = iy4 + k;
if (iy < 0)
iy = 0;
else if (iy > height - 1)
iy = height - 1;
iy = iy * stride;
sx = sx4 + beta * (k + 4);
__m256i v_coeff01 = _mm256_inserti128_si256(
v_zeros,
_mm_loadu_si128(
(__m128i *)av1_warped_filter[(sx) >> WARPEDDIFF_PREC_BITS]),
0);
v_coeff01 = _mm256_inserti128_si256(
v_coeff01,
_mm_loadu_si128(
(__m128i *)av1_warped_filter[(sx + alpha) >>
WARPEDDIFF_PREC_BITS]),
1); // B7B6..B1B0A7A6..A1A0
__m256i v_coeff23 = _mm256_inserti128_si256(
v_zeros,
_mm_loadu_si128(
(__m128i *)av1_warped_filter[(sx + 2 * alpha) >>
WARPEDDIFF_PREC_BITS]),
0);
v_coeff23 = _mm256_inserti128_si256(
v_coeff23,
_mm_loadu_si128(
(__m128i *)av1_warped_filter[(sx + 3 * alpha) >>
WARPEDDIFF_PREC_BITS]),
1); // D7D6..D1D0C7C6..C1C0
__m256i v_coeff45 = _mm256_inserti128_si256(
v_zeros,
_mm_loadu_si128(
(__m128i *)av1_warped_filter[(sx + 4 * alpha) >>
WARPEDDIFF_PREC_BITS]),
0);
v_coeff45 = _mm256_inserti128_si256(
v_coeff45,
_mm_loadu_si128(
(__m128i *)av1_warped_filter[(sx + 5 * alpha) >>
WARPEDDIFF_PREC_BITS]),
1); // F7F6..F1F0E7E6..E1E0
__m256i v_coeff67 = _mm256_inserti128_si256(
v_zeros,
_mm_loadu_si128(
(__m128i *)av1_warped_filter[(sx + 6 * alpha) >>
WARPEDDIFF_PREC_BITS]),
0);
v_coeff67 = _mm256_inserti128_si256(
v_coeff67,
_mm_loadu_si128(
(__m128i *)av1_warped_filter[(sx + 7 * alpha) >>
WARPEDDIFF_PREC_BITS]),
1); // H7H6..H1H0G7G6..G1G0
__m256i v_c0123 = _mm256_unpacklo_epi32(
v_coeff01,
v_coeff23); // D3D2B3B2D1D0B1B0C3C2A3A2C1C0A1A0
__m256i v_c0123u = _mm256_unpackhi_epi32(
v_coeff01,
v_coeff23); // D7D6B7B6D5D4B5B4C7C6A7A6C5C4A5A4
__m256i v_c4567 = _mm256_unpacklo_epi32(
v_coeff45,
v_coeff67); // H3H2F3F2H1H0F1F0G3G2E3E2G1G0E1E0
__m256i v_c4567u = _mm256_unpackhi_epi32(
v_coeff45,
v_coeff67); // H7H6F7F6H5H4F5F4G7G6E7E6G5G4E5E4
__m256i v_c01 = _mm256_unpacklo_epi64(
v_c0123, v_c4567); // H1H0F1F0D1D0B1B0G1G0E1E0C1C0A1A0
__m256i v_c23 =
_mm256_unpackhi_epi64(v_c0123, v_c4567); // H3H2 ... A3A2
__m256i v_c45 =
_mm256_unpacklo_epi64(v_c0123u, v_c4567u); // H5H4 ... A5A4
__m256i v_c67 =
_mm256_unpackhi_epi64(v_c0123u, v_c4567u); // H7H6 ... A7A6
__m256i v_refl = _mm256_inserti128_si256(
_mm256_set1_epi16(0),
_mm_loadu_si128((__m128i *)&ref[iy + ix4 - 7]), 0);
v_refl = _mm256_inserti128_si256(
v_refl, _mm_loadu_si128((__m128i *)&ref[iy + ix4 + 1]),
1); // R15 .. R0
__m256i v_ref = _mm256_permute4x64_epi64(v_refl, 0xEE);
__m256i v_refu =
_mm256_alignr_epi8(v_ref, v_refl, 2); // R8R15R14...R2R1
v_refl = _mm256_inserti128_si256(
v_refl, _mm256_extracti128_si256(v_refu, 0), 1);
v_refu = _mm256_inserti128_si256(
v_refu, _mm256_extracti128_si256(v_ref, 0), 0);
__m256i v_sum = _mm256_set1_epi32(ohoriz);
__m256i parsum =
_mm256_madd_epi16(v_c01, _mm256_alignr_epi8(v_refu, v_refl, 0));
__m256i v_sum1 = _mm256_add_epi32(v_sum, parsum);
parsum =
_mm256_madd_epi16(v_c23, _mm256_alignr_epi8(v_refu, v_refl, 4));
__m256i v_sum2 = _mm256_add_epi32(v_sum1, parsum);
parsum =
_mm256_madd_epi16(v_c45, _mm256_alignr_epi8(v_refu, v_refl, 8));
__m256i v_sum3 = _mm256_add_epi32(v_sum2, parsum);
parsum = _mm256_madd_epi16(v_c67,
_mm256_alignr_epi8(v_refu, v_refl, 12));
__m256i v_sum4 = _mm256_add_epi32(v_sum3, parsum);
tmp[k + 7] = _mm256_srai_epi32(_mm256_add_epi32(v_sum4, v_rbhoriz),
reduce_bits_horiz);
}
}
}
// Vertical filter
for (int k = -4; k < AOMMIN(4, p_height - i - 4); ++k) {
int sy = sy4 + delta * (k + 4);
const __m256i *src = tmp + (k + 4);
__m256i v_coeff01 = _mm256_inserti128_si256(
v_zeros,
_mm_loadu_si128(
(__m128i *)av1_warped_filter[(sy) >> WARPEDDIFF_PREC_BITS]),
0);
v_coeff01 = _mm256_inserti128_si256(
v_coeff01,
_mm_loadu_si128(
(__m128i *)
av1_warped_filter[(sy + gamma) >> WARPEDDIFF_PREC_BITS]),
1);
__m256i v_coeff23 = _mm256_inserti128_si256(
v_zeros,
_mm_loadu_si128((__m128i *)av1_warped_filter[(sy + 2 * gamma) >>
WARPEDDIFF_PREC_BITS]),
0);
v_coeff23 = _mm256_inserti128_si256(
v_coeff23,
_mm_loadu_si128((__m128i *)av1_warped_filter[(sy + 3 * gamma) >>
WARPEDDIFF_PREC_BITS]),
1);
__m256i v_coeff45 = _mm256_inserti128_si256(
v_zeros,
_mm_loadu_si128((__m128i *)av1_warped_filter[(sy + 4 * gamma) >>
WARPEDDIFF_PREC_BITS]),
0);
v_coeff45 = _mm256_inserti128_si256(
v_coeff45,
_mm_loadu_si128((__m128i *)av1_warped_filter[(sy + 5 * gamma) >>
WARPEDDIFF_PREC_BITS]),
1);
__m256i v_coeff67 = _mm256_inserti128_si256(
v_zeros,
_mm_loadu_si128((__m128i *)av1_warped_filter[(sy + 6 * gamma) >>
WARPEDDIFF_PREC_BITS]),
0);
v_coeff67 = _mm256_inserti128_si256(
v_coeff67,
_mm_loadu_si128((__m128i *)av1_warped_filter[(sy + 7 * gamma) >>
WARPEDDIFF_PREC_BITS]),
1);
__m256i v_c0123 = _mm256_unpacklo_epi32(
v_coeff01,
v_coeff23); // D3D2B3B2D1D0B1B0C3C2A3A2C1C0A1A0
__m256i v_c0123u = _mm256_unpackhi_epi32(
v_coeff01,
v_coeff23); // D7D6B7B6D5D4B5B4C7C6A7A6C5C4A5A4
__m256i v_c4567 = _mm256_unpacklo_epi32(
v_coeff45,
v_coeff67); // H3H2F3F2H1H0F1F0G3G2E3E2G1G0E1E0
__m256i v_c4567u = _mm256_unpackhi_epi32(
v_coeff45,
v_coeff67); // H7H6F7F6H5H4F5F4G7G6E7E6G5G4E5E4
__m256i v_c01 = _mm256_unpacklo_epi64(
v_c0123, v_c4567); // H1H0F1F0D1D0B1B0G1G0E1E0C1C0A1A0
__m256i v_c23 =
_mm256_unpackhi_epi64(v_c0123, v_c4567); // H3H2 ... A3A2
__m256i v_c45 =
_mm256_unpacklo_epi64(v_c0123u, v_c4567u); // H5H4 ... A5A4
__m256i v_c67 =
_mm256_unpackhi_epi64(v_c0123u, v_c4567u); // H7H6 ... A7A6
__m256i v_src01l =
_mm256_unpacklo_epi32(src[0], src[1]); // T13T03T11T01T12T02T10T00
__m256i v_src01u =
_mm256_unpackhi_epi32(src[0], src[1]); // T17T07T15T05T16T06T14T04
__m256i v_sum =
_mm256_madd_epi16(_mm256_packus_epi32(v_src01l, v_src01u),
v_c01); // S7S5S3S1S6S4S2S0
__m256i v_src23l = _mm256_unpacklo_epi32(src[2], src[3]);
__m256i v_src23u = _mm256_unpackhi_epi32(src[2], src[3]);
v_sum = _mm256_add_epi32(
v_sum,
_mm256_madd_epi16(_mm256_packus_epi32(v_src23l, v_src23u), v_c23));
__m256i v_src45l = _mm256_unpacklo_epi32(src[4], src[5]);
__m256i v_src45u = _mm256_unpackhi_epi32(src[4], src[5]);
v_sum = _mm256_add_epi32(
v_sum,
_mm256_madd_epi16(_mm256_packus_epi32(v_src45l, v_src45u), v_c45));
__m256i v_src67l = _mm256_unpacklo_epi32(src[6], src[7]);
__m256i v_src67u = _mm256_unpackhi_epi32(src[6], src[7]);
v_sum = _mm256_add_epi32(
v_sum,
_mm256_madd_epi16(_mm256_packus_epi32(v_src67l, v_src67u), v_c67));
// unpack S7S5S3S1S6S4S2S0 to S7S6S5S4S3S2S1S0
__m256i v_suml =
_mm256_permute4x64_epi64(v_sum, 0xD8); // S7S5S6S4S3S1S2S0
__m256i v_sumh =
_mm256_permute4x64_epi64(v_sum, 0x32); // S2S0S7S5S2S0S3S1
v_sum = _mm256_unpacklo_epi32(v_suml, v_sumh); // S7S6S5S4S3S2S1S0
if (conv_params->is_compound) {
__m128i *const p =
(__m128i *)&conv_params
->dst[(i + k + 4) * conv_params->dst_stride + j];
v_sum = _mm256_add_epi32(v_sum, res_add_const);
v_sum =
_mm256_sra_epi32(_mm256_add_epi32(v_sum, reduce_bits_vert_const),
reduce_bits_vert_shift);
if (conv_params->do_average) {
__m128i *const dst16 = (__m128i *)&pred[(i + k + 4) * p_stride + j];
__m256i p_32 = _mm256_cvtepu16_epi32(_mm_loadu_si128(p));
if (conv_params->use_dist_wtd_comp_avg) {
v_sum = _mm256_add_epi32(_mm256_mullo_epi32(p_32, wt0),
_mm256_mullo_epi32(v_sum, wt1));
v_sum = _mm256_srai_epi32(v_sum, DIST_PRECISION_BITS);
} else {
v_sum = _mm256_srai_epi32(_mm256_add_epi32(p_32, v_sum), 1);
}
__m256i v_sum1 = _mm256_add_epi32(v_sum, res_sub_const);
v_sum1 = _mm256_sra_epi32(
_mm256_add_epi32(v_sum1, round_bits_const), round_bits_shift);
__m256i v_sum16 = _mm256_packus_epi32(v_sum1, v_sum1);
v_sum16 = _mm256_permute4x64_epi64(v_sum16, 0xD8);
v_sum16 = _mm256_min_epi16(v_sum16, clip_pixel);
_mm_storeu_si128(dst16, _mm256_extracti128_si256(v_sum16, 0));
} else {
v_sum = _mm256_packus_epi32(v_sum, v_sum);
__m256i v_sum16 = _mm256_permute4x64_epi64(v_sum, 0xD8);
_mm_storeu_si128(p, _mm256_extracti128_si256(v_sum16, 0));
}
} else {
// Round and pack into 8 bits
const __m256i round_const =
_mm256_set1_epi32(-(1 << (bd + reduce_bits_vert - 1)) +
((1 << reduce_bits_vert) >> 1));
__m256i v_sum1 = _mm256_srai_epi32(
_mm256_add_epi32(v_sum, round_const), reduce_bits_vert);
v_sum1 = _mm256_packus_epi32(v_sum1, v_sum1);
__m256i v_sum16 = _mm256_permute4x64_epi64(v_sum1, 0xD8);
// Clamp res_16bit to the range [0, 2^bd - 1]
const __m256i max_val = _mm256_set1_epi16((1 << bd) - 1);
const __m256i zero = _mm256_setzero_si256();
v_sum16 = _mm256_max_epi16(_mm256_min_epi16(v_sum16, max_val), zero);
__m128i *const p = (__m128i *)&pred[(i + k + 4) * p_stride + j];
_mm_storeu_si128(p, _mm256_extracti128_si256(v_sum16, 0));
}
}
}
}
}
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