| /* |
| * 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 <immintrin.h> |
| |
| #include "config/av1_rtcd.h" |
| |
| #include "aom_dsp/aom_dsp_common.h" |
| #include "aom_dsp/x86/convolve_avx2.h" |
| #include "aom_dsp/x86/synonyms.h" |
| |
| void av1_convolve_y_sr_avx2(const uint8_t *src, int src_stride, uint8_t *dst, |
| int dst_stride, int w, int h, |
| InterpFilterParams *filter_params_x, |
| InterpFilterParams *filter_params_y, |
| const int subpel_x_q4, const int subpel_y_q4, |
| ConvolveParams *conv_params) { |
| int i, j; |
| const int fo_vert = filter_params_y->taps / 2 - 1; |
| const uint8_t *const src_ptr = src - fo_vert * src_stride; |
| |
| // right shift is F-1 because we are already dividing |
| // filter co-efficients by 2 |
| const int right_shift_bits = (FILTER_BITS - 1); |
| const __m128i right_shift = _mm_cvtsi32_si128(right_shift_bits); |
| const __m256i right_shift_const = |
| _mm256_set1_epi16((1 << right_shift_bits) >> 1); |
| __m256i coeffs[4], s[8]; |
| |
| assert(conv_params->round_0 <= FILTER_BITS); |
| assert(((conv_params->round_0 + conv_params->round_1) <= (FILTER_BITS + 1)) || |
| ((conv_params->round_0 + conv_params->round_1) == (2 * FILTER_BITS))); |
| |
| prepare_coeffs_lowbd(filter_params_y, subpel_y_q4, coeffs); |
| |
| (void)filter_params_x; |
| (void)subpel_x_q4; |
| (void)conv_params; |
| |
| for (j = 0; j < w; j += 16) { |
| const uint8_t *data = &src_ptr[j]; |
| __m256i src6; |
| |
| // Load lines a and b. Line a to lower 128, line b to upper 128 |
| const __m256i src_01a = _mm256_permute2x128_si256( |
| _mm256_castsi128_si256( |
| _mm_loadu_si128((__m128i *)(data + 0 * src_stride))), |
| _mm256_castsi128_si256( |
| _mm_loadu_si128((__m128i *)(data + 1 * src_stride))), |
| 0x20); |
| |
| const __m256i src_12a = _mm256_permute2x128_si256( |
| _mm256_castsi128_si256( |
| _mm_loadu_si128((__m128i *)(data + 1 * src_stride))), |
| _mm256_castsi128_si256( |
| _mm_loadu_si128((__m128i *)(data + 2 * src_stride))), |
| 0x20); |
| |
| const __m256i src_23a = _mm256_permute2x128_si256( |
| _mm256_castsi128_si256( |
| _mm_loadu_si128((__m128i *)(data + 2 * src_stride))), |
| _mm256_castsi128_si256( |
| _mm_loadu_si128((__m128i *)(data + 3 * src_stride))), |
| 0x20); |
| |
| const __m256i src_34a = _mm256_permute2x128_si256( |
| _mm256_castsi128_si256( |
| _mm_loadu_si128((__m128i *)(data + 3 * src_stride))), |
| _mm256_castsi128_si256( |
| _mm_loadu_si128((__m128i *)(data + 4 * src_stride))), |
| 0x20); |
| |
| const __m256i src_45a = _mm256_permute2x128_si256( |
| _mm256_castsi128_si256( |
| _mm_loadu_si128((__m128i *)(data + 4 * src_stride))), |
| _mm256_castsi128_si256( |
| _mm_loadu_si128((__m128i *)(data + 5 * src_stride))), |
| 0x20); |
| |
| src6 = _mm256_castsi128_si256( |
| _mm_loadu_si128((__m128i *)(data + 6 * src_stride))); |
| const __m256i src_56a = _mm256_permute2x128_si256( |
| _mm256_castsi128_si256( |
| _mm_loadu_si128((__m128i *)(data + 5 * src_stride))), |
| src6, 0x20); |
| |
| s[0] = _mm256_unpacklo_epi8(src_01a, src_12a); |
| s[1] = _mm256_unpacklo_epi8(src_23a, src_34a); |
| s[2] = _mm256_unpacklo_epi8(src_45a, src_56a); |
| |
| s[4] = _mm256_unpackhi_epi8(src_01a, src_12a); |
| s[5] = _mm256_unpackhi_epi8(src_23a, src_34a); |
| s[6] = _mm256_unpackhi_epi8(src_45a, src_56a); |
| |
| for (i = 0; i < h; i += 2) { |
| data = &src_ptr[i * src_stride + j]; |
| const __m256i src_67a = _mm256_permute2x128_si256( |
| src6, |
| _mm256_castsi128_si256( |
| _mm_loadu_si128((__m128i *)(data + 7 * src_stride))), |
| 0x20); |
| |
| src6 = _mm256_castsi128_si256( |
| _mm_loadu_si128((__m128i *)(data + 8 * src_stride))); |
| const __m256i src_78a = _mm256_permute2x128_si256( |
| _mm256_castsi128_si256( |
| _mm_loadu_si128((__m128i *)(data + 7 * src_stride))), |
| src6, 0x20); |
| |
| s[3] = _mm256_unpacklo_epi8(src_67a, src_78a); |
| s[7] = _mm256_unpackhi_epi8(src_67a, src_78a); |
| |
| const __m256i res_lo = convolve_lowbd(s, coeffs); |
| |
| /* rounding code */ |
| // shift by F - 1 |
| const __m256i res_16b_lo = _mm256_sra_epi16( |
| _mm256_add_epi16(res_lo, right_shift_const), right_shift); |
| // 8 bit conversion and saturation to uint8 |
| __m256i res_8b_lo = _mm256_packus_epi16(res_16b_lo, res_16b_lo); |
| |
| if (w - j > 8) { |
| const __m256i res_hi = convolve_lowbd(s + 4, coeffs); |
| |
| /* rounding code */ |
| // shift by F - 1 |
| const __m256i res_16b_hi = _mm256_sra_epi16( |
| _mm256_add_epi16(res_hi, right_shift_const), right_shift); |
| // 8 bit conversion and saturation to uint8 |
| __m256i res_8b_hi = _mm256_packus_epi16(res_16b_hi, res_16b_hi); |
| |
| __m256i res_a = _mm256_unpacklo_epi64(res_8b_lo, res_8b_hi); |
| |
| const __m128i res_0 = _mm256_castsi256_si128(res_a); |
| const __m128i res_1 = _mm256_extracti128_si256(res_a, 1); |
| |
| _mm_storeu_si128((__m128i *)&dst[i * dst_stride + j], res_0); |
| _mm_storeu_si128((__m128i *)&dst[i * dst_stride + j + dst_stride], |
| res_1); |
| } else { |
| const __m128i res_0 = _mm256_castsi256_si128(res_8b_lo); |
| const __m128i res_1 = _mm256_extracti128_si256(res_8b_lo, 1); |
| if (w - j > 4) { |
| _mm_storel_epi64((__m128i *)&dst[i * dst_stride + j], res_0); |
| _mm_storel_epi64((__m128i *)&dst[i * dst_stride + j + dst_stride], |
| res_1); |
| } else if (w - j > 2) { |
| xx_storel_32(&dst[i * dst_stride + j], res_0); |
| xx_storel_32(&dst[i * dst_stride + j + dst_stride], res_1); |
| } else { |
| __m128i *const p_0 = (__m128i *)&dst[i * dst_stride + j]; |
| __m128i *const p_1 = (__m128i *)&dst[i * dst_stride + j + dst_stride]; |
| *(uint16_t *)p_0 = _mm_cvtsi128_si32(res_0); |
| *(uint16_t *)p_1 = _mm_cvtsi128_si32(res_1); |
| } |
| } |
| |
| s[0] = s[1]; |
| s[1] = s[2]; |
| s[2] = s[3]; |
| |
| s[4] = s[5]; |
| s[5] = s[6]; |
| s[6] = s[7]; |
| } |
| } |
| } |
| |
| void av1_convolve_x_sr_avx2(const uint8_t *src, int src_stride, uint8_t *dst, |
| int dst_stride, int w, int h, |
| InterpFilterParams *filter_params_x, |
| InterpFilterParams *filter_params_y, |
| const int subpel_x_q4, const int subpel_y_q4, |
| ConvolveParams *conv_params) { |
| int i, j; |
| const int fo_horiz = filter_params_x->taps / 2 - 1; |
| const uint8_t *const src_ptr = src - fo_horiz; |
| const int bits = FILTER_BITS - conv_params->round_0; |
| |
| __m256i filt[4], coeffs[4]; |
| |
| filt[0] = _mm256_load_si256((__m256i const *)filt1_global_avx2); |
| filt[1] = _mm256_load_si256((__m256i const *)filt2_global_avx2); |
| filt[2] = _mm256_load_si256((__m256i const *)filt3_global_avx2); |
| filt[3] = _mm256_load_si256((__m256i const *)filt4_global_avx2); |
| |
| prepare_coeffs_lowbd(filter_params_x, subpel_x_q4, coeffs); |
| |
| const __m256i round_0_const = |
| _mm256_set1_epi16((1 << (conv_params->round_0 - 1)) >> 1); |
| const __m128i round_0_shift = _mm_cvtsi32_si128(conv_params->round_0 - 1); |
| const __m256i round_const = _mm256_set1_epi16((1 << bits) >> 1); |
| const __m128i round_shift = _mm_cvtsi32_si128(bits); |
| |
| (void)filter_params_y; |
| (void)subpel_y_q4; |
| |
| assert(bits >= 0); |
| assert((FILTER_BITS - conv_params->round_1) >= 0 || |
| ((conv_params->round_0 + conv_params->round_1) == 2 * FILTER_BITS)); |
| assert(conv_params->round_0 > 0); |
| |
| if (w <= 8) { |
| for (i = 0; i < h; i += 2) { |
| const __m256i data = _mm256_permute2x128_si256( |
| _mm256_castsi128_si256( |
| _mm_loadu_si128((__m128i *)(&src_ptr[i * src_stride]))), |
| _mm256_castsi128_si256(_mm_loadu_si128( |
| (__m128i *)(&src_ptr[i * src_stride + src_stride]))), |
| 0x20); |
| |
| __m256i res_16b = convolve_lowbd_x(data, coeffs, filt); |
| |
| res_16b = _mm256_sra_epi16(_mm256_add_epi16(res_16b, round_0_const), |
| round_0_shift); |
| |
| res_16b = |
| _mm256_sra_epi16(_mm256_add_epi16(res_16b, round_const), round_shift); |
| |
| /* rounding code */ |
| // 8 bit conversion and saturation to uint8 |
| __m256i res_8b = _mm256_packus_epi16(res_16b, res_16b); |
| |
| const __m128i res_0 = _mm256_castsi256_si128(res_8b); |
| const __m128i res_1 = _mm256_extracti128_si256(res_8b, 1); |
| if (w > 4) { |
| _mm_storel_epi64((__m128i *)&dst[i * dst_stride], res_0); |
| _mm_storel_epi64((__m128i *)&dst[i * dst_stride + dst_stride], res_1); |
| } else if (w > 2) { |
| xx_storel_32(&dst[i * dst_stride], res_0); |
| xx_storel_32(&dst[i * dst_stride + dst_stride], res_1); |
| } else { |
| __m128i *const p_0 = (__m128i *)&dst[i * dst_stride]; |
| __m128i *const p_1 = (__m128i *)&dst[i * dst_stride + dst_stride]; |
| *(uint16_t *)p_0 = _mm_cvtsi128_si32(res_0); |
| *(uint16_t *)p_1 = _mm_cvtsi128_si32(res_1); |
| } |
| } |
| } else { |
| for (i = 0; i < h; ++i) { |
| for (j = 0; j < w; j += 16) { |
| // 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 8 9 10 11 12 13 14 15 16 17 18 |
| // 19 20 21 22 23 |
| const __m256i data = _mm256_inserti128_si256( |
| _mm256_loadu_si256((__m256i *)&src_ptr[(i * src_stride) + j]), |
| _mm_loadu_si128((__m128i *)&src_ptr[(i * src_stride) + (j + 8)]), |
| 1); |
| |
| __m256i res_16b = convolve_lowbd_x(data, coeffs, filt); |
| |
| res_16b = _mm256_sra_epi16(_mm256_add_epi16(res_16b, round_0_const), |
| round_0_shift); |
| |
| res_16b = _mm256_sra_epi16(_mm256_add_epi16(res_16b, round_const), |
| round_shift); |
| |
| /* rounding code */ |
| // 8 bit conversion and saturation to uint8 |
| __m256i res_8b = _mm256_packus_epi16(res_16b, res_16b); |
| |
| // Store values into the destination buffer |
| // 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 |
| res_8b = _mm256_permute4x64_epi64(res_8b, 216); |
| __m128i res = _mm256_castsi256_si128(res_8b); |
| _mm_storeu_si128((__m128i *)&dst[i * dst_stride + j], res); |
| } |
| } |
| } |
| } |
