201 lines
8.1 KiB
C
201 lines
8.1 KiB
C
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/*
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* Copyright (c) 2017, Alliance for Open Media. All rights reserved
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*
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* This source code is subject to the terms of the BSD 2 Clause License and
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* the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
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* was not distributed with this source code in the LICENSE file, you can
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* obtain it at www.aomedia.org/license/software. If the Alliance for Open
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* Media Patent License 1.0 was not distributed with this source code in the
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* PATENTS file, you can obtain it at www.aomedia.org/license/patent.
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*/
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#include <immintrin.h>
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#include <assert.h>
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#include "config/aom_dsp_rtcd.h"
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#include "aom_dsp/x86/convolve_avx2.h"
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#include "aom_dsp/x86/synonyms.h"
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#include "aom_dsp/aom_dsp_common.h"
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#include "aom_dsp/aom_filter.h"
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#include "av1/common/convolve.h"
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void av1_highbd_convolve_2d_sr_ssse3(
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const uint16_t *src, int src_stride, uint16_t *dst, int dst_stride, int w,
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int h, const InterpFilterParams *filter_params_x,
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const InterpFilterParams *filter_params_y, const int subpel_x_qn,
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const int subpel_y_qn, ConvolveParams *conv_params, int bd);
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void av1_highbd_convolve_2d_sr_avx2(const uint16_t *src, int src_stride,
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uint16_t *dst, int dst_stride, int w, int h,
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const InterpFilterParams *filter_params_x,
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const InterpFilterParams *filter_params_y,
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const int subpel_x_qn,
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const int subpel_y_qn,
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ConvolveParams *conv_params, int bd) {
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if (filter_params_x->taps == 12) {
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av1_highbd_convolve_2d_sr_ssse3(src, src_stride, dst, dst_stride, w, h,
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filter_params_x, filter_params_y,
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subpel_x_qn, subpel_y_qn, conv_params, bd);
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return;
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}
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DECLARE_ALIGNED(32, int16_t, im_block[(MAX_SB_SIZE + MAX_FILTER_TAP) * 8]);
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int im_h = h + filter_params_y->taps - 1;
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int im_stride = 8;
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int i, j;
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const int fo_vert = filter_params_y->taps / 2 - 1;
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const int fo_horiz = filter_params_x->taps / 2 - 1;
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const uint16_t *const src_ptr = src - fo_vert * src_stride - fo_horiz;
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// Check that, even with 12-bit input, the intermediate values will fit
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// into an unsigned 16-bit intermediate array.
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assert(bd + FILTER_BITS + 2 - conv_params->round_0 <= 16);
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__m256i s[8], coeffs_y[4], coeffs_x[4];
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const __m256i round_const_x = _mm256_set1_epi32(
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((1 << conv_params->round_0) >> 1) + (1 << (bd + FILTER_BITS - 1)));
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const __m128i round_shift_x = _mm_cvtsi32_si128(conv_params->round_0);
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const __m256i round_const_y = _mm256_set1_epi32(
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((1 << conv_params->round_1) >> 1) -
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(1 << (bd + 2 * FILTER_BITS - conv_params->round_0 - 1)));
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const __m128i round_shift_y = _mm_cvtsi32_si128(conv_params->round_1);
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const int bits =
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FILTER_BITS * 2 - conv_params->round_0 - conv_params->round_1;
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const __m128i round_shift_bits = _mm_cvtsi32_si128(bits);
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const __m256i round_const_bits = _mm256_set1_epi32((1 << bits) >> 1);
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const __m256i clip_pixel =
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_mm256_set1_epi16(bd == 10 ? 1023 : (bd == 12 ? 4095 : 255));
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const __m256i zero = _mm256_setzero_si256();
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prepare_coeffs(filter_params_x, subpel_x_qn, coeffs_x);
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prepare_coeffs(filter_params_y, subpel_y_qn, coeffs_y);
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for (j = 0; j < w; j += 8) {
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/* Horizontal filter */
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{
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for (i = 0; i < im_h; i += 2) {
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const __m256i row0 =
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_mm256_loadu_si256((__m256i *)&src_ptr[i * src_stride + j]);
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__m256i row1 = _mm256_setzero_si256();
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if (i + 1 < im_h)
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row1 =
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_mm256_loadu_si256((__m256i *)&src_ptr[(i + 1) * src_stride + j]);
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const __m256i r0 = _mm256_permute2x128_si256(row0, row1, 0x20);
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const __m256i r1 = _mm256_permute2x128_si256(row0, row1, 0x31);
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// even pixels
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s[0] = _mm256_alignr_epi8(r1, r0, 0);
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s[1] = _mm256_alignr_epi8(r1, r0, 4);
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s[2] = _mm256_alignr_epi8(r1, r0, 8);
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s[3] = _mm256_alignr_epi8(r1, r0, 12);
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__m256i res_even = convolve(s, coeffs_x);
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res_even = _mm256_sra_epi32(_mm256_add_epi32(res_even, round_const_x),
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round_shift_x);
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// odd pixels
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s[0] = _mm256_alignr_epi8(r1, r0, 2);
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s[1] = _mm256_alignr_epi8(r1, r0, 6);
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s[2] = _mm256_alignr_epi8(r1, r0, 10);
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s[3] = _mm256_alignr_epi8(r1, r0, 14);
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__m256i res_odd = convolve(s, coeffs_x);
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res_odd = _mm256_sra_epi32(_mm256_add_epi32(res_odd, round_const_x),
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round_shift_x);
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__m256i res_even1 = _mm256_packs_epi32(res_even, res_even);
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__m256i res_odd1 = _mm256_packs_epi32(res_odd, res_odd);
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__m256i res = _mm256_unpacklo_epi16(res_even1, res_odd1);
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_mm256_store_si256((__m256i *)&im_block[i * im_stride], res);
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}
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}
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/* Vertical filter */
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{
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__m256i s0 = _mm256_loadu_si256((__m256i *)(im_block + 0 * im_stride));
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__m256i s1 = _mm256_loadu_si256((__m256i *)(im_block + 1 * im_stride));
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__m256i s2 = _mm256_loadu_si256((__m256i *)(im_block + 2 * im_stride));
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__m256i s3 = _mm256_loadu_si256((__m256i *)(im_block + 3 * im_stride));
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__m256i s4 = _mm256_loadu_si256((__m256i *)(im_block + 4 * im_stride));
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__m256i s5 = _mm256_loadu_si256((__m256i *)(im_block + 5 * im_stride));
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s[0] = _mm256_unpacklo_epi16(s0, s1);
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s[1] = _mm256_unpacklo_epi16(s2, s3);
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s[2] = _mm256_unpacklo_epi16(s4, s5);
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s[4] = _mm256_unpackhi_epi16(s0, s1);
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s[5] = _mm256_unpackhi_epi16(s2, s3);
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s[6] = _mm256_unpackhi_epi16(s4, s5);
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for (i = 0; i < h; i += 2) {
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const int16_t *data = &im_block[i * im_stride];
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const __m256i s6 =
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_mm256_loadu_si256((__m256i *)(data + 6 * im_stride));
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const __m256i s7 =
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_mm256_loadu_si256((__m256i *)(data + 7 * im_stride));
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s[3] = _mm256_unpacklo_epi16(s6, s7);
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s[7] = _mm256_unpackhi_epi16(s6, s7);
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const __m256i res_a = convolve(s, coeffs_y);
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__m256i res_a_round = _mm256_sra_epi32(
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_mm256_add_epi32(res_a, round_const_y), round_shift_y);
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res_a_round = _mm256_sra_epi32(
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_mm256_add_epi32(res_a_round, round_const_bits), round_shift_bits);
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if (w - j > 4) {
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const __m256i res_b = convolve(s + 4, coeffs_y);
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__m256i res_b_round = _mm256_sra_epi32(
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_mm256_add_epi32(res_b, round_const_y), round_shift_y);
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res_b_round =
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_mm256_sra_epi32(_mm256_add_epi32(res_b_round, round_const_bits),
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round_shift_bits);
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__m256i res_16bit = _mm256_packs_epi32(res_a_round, res_b_round);
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res_16bit = _mm256_min_epi16(res_16bit, clip_pixel);
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res_16bit = _mm256_max_epi16(res_16bit, zero);
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_mm_storeu_si128((__m128i *)&dst[i * dst_stride + j],
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_mm256_castsi256_si128(res_16bit));
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_mm_storeu_si128((__m128i *)&dst[i * dst_stride + j + dst_stride],
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_mm256_extracti128_si256(res_16bit, 1));
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} else if (w == 4) {
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res_a_round = _mm256_packs_epi32(res_a_round, res_a_round);
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res_a_round = _mm256_min_epi16(res_a_round, clip_pixel);
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res_a_round = _mm256_max_epi16(res_a_round, zero);
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_mm_storel_epi64((__m128i *)&dst[i * dst_stride + j],
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_mm256_castsi256_si128(res_a_round));
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_mm_storel_epi64((__m128i *)&dst[i * dst_stride + j + dst_stride],
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_mm256_extracti128_si256(res_a_round, 1));
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} else {
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res_a_round = _mm256_packs_epi32(res_a_round, res_a_round);
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res_a_round = _mm256_min_epi16(res_a_round, clip_pixel);
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res_a_round = _mm256_max_epi16(res_a_round, zero);
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xx_storel_32(&dst[i * dst_stride + j],
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_mm256_castsi256_si128(res_a_round));
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xx_storel_32(&dst[i * dst_stride + j + dst_stride],
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_mm256_extracti128_si256(res_a_round, 1));
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}
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s[0] = s[1];
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s[1] = s[2];
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s[2] = s[3];
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s[4] = s[5];
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s[5] = s[6];
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s[6] = s[7];
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}
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}
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}
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}
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