| /* |
| * Copyright (c) 2021, Alliance for Open Media. All rights reserved |
| * |
| * This source code is subject to the terms of the BSD 3-Clause Clear License |
| * and the Alliance for Open Media Patent License 1.0. If the BSD 3-Clause Clear |
| * License was not distributed with this source code in the LICENSE file, you |
| * can obtain it at aomedia.org/license/software-license/bsd-3-c-c/. 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 |
| * aomedia.org/license/patent-license/. |
| */ |
| #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; |
| 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)); |
| |
| // Check that, even with 12-bit input, the intermediate values will fit |
| // into an unsigned 16-bit intermediate array. |
| assert(bd + FILTER_BITS + 2 - conv_params->round_0 <= 16); |
| |
| 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 use_wtd_comp_avg = is_uneven_wtd_comp_avg(conv_params); |
| 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 int32_t dst_x = mat[2] * src_x + mat[3] * src_y + mat[0]; |
| const int32_t dst_y = mat[4] * src_x + mat[5] * src_y + mat[1]; |
| const int32_t x4 = dst_x >> subsampling_x; |
| const int32_t y4 = dst_y >> subsampling_y; |
| |
| const int16_t ix4 = x4 >> WARPEDMODEL_PREC_BITS; |
| int32_t sx4 = x4 & ((1 << WARPEDMODEL_PREC_BITS) - 1); |
| const int16_t iy4 = 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 (use_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)); |
| } |
| } |
| } |
| } |
| } |
