| /* |
| * 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 "aom_dsp/x86/convolve_common_intrin.h" |
| #include "av1/common/convolve.h" |
| |
| void av1_convolve_2d_sr_12tap_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 = w; |
| 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); |
| __m128i coeffs[6]; |
| |
| /* Horizontal filter */ |
| { |
| prepare_coeffs_12tap(filter_params_x, subpel_x_qn, coeffs); |
| |
| 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]); |
| const __m128i data_2 = |
| _mm_loadu_si128((__m128i *)&src_ptr[i * src_stride + (j + 4)]); |
| |
| // Filter even-index pixels |
| const __m128i src_0 = _mm_unpacklo_epi8(data, zero); |
| const __m128i res_0 = _mm_madd_epi16(src_0, coeffs[0]); |
| const __m128i src_2 = _mm_unpacklo_epi8(_mm_srli_si128(data, 2), zero); |
| const __m128i res_2 = _mm_madd_epi16(src_2, coeffs[1]); |
| const __m128i src_4 = _mm_unpacklo_epi8(data_2, zero); |
| const __m128i res_4 = _mm_madd_epi16(src_4, coeffs[2]); |
| const __m128i src_6 = |
| _mm_unpacklo_epi8(_mm_srli_si128(data_2, 2), zero); |
| const __m128i res_6 = _mm_madd_epi16(src_6, coeffs[3]); |
| const __m128i src_8 = |
| _mm_unpacklo_epi8(_mm_srli_si128(data_2, 4), zero); |
| const __m128i res_8 = _mm_madd_epi16(src_8, coeffs[4]); |
| const __m128i src_10 = |
| _mm_unpacklo_epi8(_mm_srli_si128(data_2, 6), zero); |
| const __m128i res_10 = _mm_madd_epi16(src_10, coeffs[5]); |
| |
| const __m128i res_0246 = _mm_add_epi32(_mm_add_epi32(res_0, res_4), |
| _mm_add_epi32(res_2, res_6)); |
| __m128i res_even = |
| _mm_add_epi32(_mm_add_epi32(res_8, res_10), res_0246); |
| 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, coeffs[0]); |
| const __m128i src_3 = _mm_unpacklo_epi8(_mm_srli_si128(data, 3), zero); |
| const __m128i res_3 = _mm_madd_epi16(src_3, coeffs[1]); |
| const __m128i src_5 = |
| _mm_unpacklo_epi8(_mm_srli_si128(data_2, 1), zero); |
| const __m128i res_5 = _mm_madd_epi16(src_5, coeffs[2]); |
| const __m128i src_7 = |
| _mm_unpacklo_epi8(_mm_srli_si128(data_2, 3), zero); |
| const __m128i res_7 = _mm_madd_epi16(src_7, coeffs[3]); |
| const __m128i src_9 = |
| _mm_unpacklo_epi8(_mm_srli_si128(data_2, 5), zero); |
| const __m128i res_9 = _mm_madd_epi16(src_9, coeffs[4]); |
| const __m128i src_11 = |
| _mm_unpacklo_epi8(_mm_srli_si128(data_2, 7), zero); |
| const __m128i res_11 = _mm_madd_epi16(src_11, coeffs[5]); |
| |
| const __m128i res_1357 = _mm_add_epi32(_mm_add_epi32(res_1, res_5), |
| _mm_add_epi32(res_3, res_7)); |
| __m128i res_odd = _mm_add_epi32(_mm_add_epi32(res_9, res_11), res_1357); |
| 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 */ |
| { |
| prepare_coeffs_12tap(filter_params_y, subpel_y_qn, coeffs); |
| |
| 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 src_8 = |
| _mm_unpacklo_epi16(*(__m128i *)(data + 8 * im_stride), |
| *(__m128i *)(data + 9 * im_stride)); |
| const __m128i src_10 = |
| _mm_unpacklo_epi16(*(__m128i *)(data + 10 * im_stride), |
| *(__m128i *)(data + 11 * im_stride)); |
| |
| const __m128i res_0 = _mm_madd_epi16(src_0, coeffs[0]); |
| const __m128i res_2 = _mm_madd_epi16(src_2, coeffs[1]); |
| const __m128i res_4 = _mm_madd_epi16(src_4, coeffs[2]); |
| const __m128i res_6 = _mm_madd_epi16(src_6, coeffs[3]); |
| const __m128i res_8 = _mm_madd_epi16(src_8, coeffs[4]); |
| const __m128i res_10 = _mm_madd_epi16(src_10, coeffs[5]); |
| |
| const __m128i res_0246 = _mm_add_epi32(_mm_add_epi32(res_0, res_2), |
| _mm_add_epi32(res_4, res_6)); |
| __m128i res_even = |
| _mm_add_epi32(_mm_add_epi32(res_8, res_10), res_0246); |
| |
| // 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 src_9 = |
| _mm_unpackhi_epi16(*(__m128i *)(data + 8 * im_stride), |
| *(__m128i *)(data + 9 * im_stride)); |
| const __m128i src_11 = |
| _mm_unpackhi_epi16(*(__m128i *)(data + 10 * im_stride), |
| *(__m128i *)(data + 11 * im_stride)); |
| |
| const __m128i res_1 = _mm_madd_epi16(src_1, coeffs[0]); |
| const __m128i res_3 = _mm_madd_epi16(src_3, coeffs[1]); |
| const __m128i res_5 = _mm_madd_epi16(src_5, coeffs[2]); |
| const __m128i res_7 = _mm_madd_epi16(src_7, coeffs[3]); |
| const __m128i res_9 = _mm_madd_epi16(src_9, coeffs[4]); |
| const __m128i res_11 = _mm_madd_epi16(src_11, coeffs[5]); |
| |
| const __m128i res_1357 = _mm_add_epi32(_mm_add_epi32(res_1, res_5), |
| _mm_add_epi32(res_3, res_7)); |
| __m128i res_odd = _mm_add_epi32(_mm_add_epi32(res_9, res_11), res_1357); |
| |
| // 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]; |
| |
| _mm_storel_epi64(p, res); |
| } |
| } |
| } |
| } |
| |
| 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) { |
| if (filter_params_x->taps > 8) { |
| if (w < 8) { |
| av1_convolve_2d_sr_c(src, src_stride, dst, dst_stride, w, h, |
| filter_params_x, filter_params_y, subpel_x_qn, |
| subpel_y_qn, conv_params); |
| } else { |
| av1_convolve_2d_sr_12tap_sse2(src, src_stride, dst, dst_stride, w, h, |
| filter_params_x, filter_params_y, |
| subpel_x_qn, subpel_y_qn, conv_params); |
| } |
| } else { |
| 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 = (uint16_t)_mm_cvtsi128_si32(res); |
| } else if (w == 4) { |
| *(int *)p = _mm_cvtsi128_si32(res); |
| } else { |
| _mm_storel_epi64(p, res); |
| } |
| } |
| } |
| } |
| } |
| } |
| |
| 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, ConvolveParams *conv_params) { |
| const int bd = 8; |
| CONV_BUF_TYPE *dst = conv_params->dst; |
| int dst_stride = conv_params->dst_stride; |
| |
| 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 |
| *(int *)(&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; |
| } |
| } |
| } |
