501 lines
20 KiB
C
501 lines
20 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 <emmintrin.h>
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#include "config/av1_rtcd.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 "aom_dsp/x86/convolve_common_intrin.h"
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#include "av1/common/convolve.h"
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static INLINE void prepare_coeffs(const InterpFilterParams *const filter_params,
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const int subpel_q4,
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__m128i *const coeffs /* [4] */) {
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const int16_t *const y_filter = av1_get_interp_filter_subpel_kernel(
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filter_params, subpel_q4 & SUBPEL_MASK);
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const __m128i coeffs_y = _mm_loadu_si128((__m128i *)y_filter);
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// coeffs 0 1 0 1 2 3 2 3
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const __m128i tmp_0 = _mm_unpacklo_epi32(coeffs_y, coeffs_y);
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// coeffs 4 5 4 5 6 7 6 7
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const __m128i tmp_1 = _mm_unpackhi_epi32(coeffs_y, coeffs_y);
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coeffs[0] = _mm_unpacklo_epi64(tmp_0, tmp_0); // coeffs 0 1 0 1 0 1 0 1
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coeffs[1] = _mm_unpackhi_epi64(tmp_0, tmp_0); // coeffs 2 3 2 3 2 3 2 3
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coeffs[2] = _mm_unpacklo_epi64(tmp_1, tmp_1); // coeffs 4 5 4 5 4 5 4 5
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coeffs[3] = _mm_unpackhi_epi64(tmp_1, tmp_1); // coeffs 6 7 6 7 6 7 6 7
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}
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static INLINE __m128i convolve(const __m128i *const s,
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const __m128i *const coeffs) {
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const __m128i d0 = _mm_madd_epi16(s[0], coeffs[0]);
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const __m128i d1 = _mm_madd_epi16(s[1], coeffs[1]);
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const __m128i d2 = _mm_madd_epi16(s[2], coeffs[2]);
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const __m128i d3 = _mm_madd_epi16(s[3], coeffs[3]);
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const __m128i d = _mm_add_epi32(_mm_add_epi32(d0, d1), _mm_add_epi32(d2, d3));
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return d;
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}
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static INLINE __m128i convolve_lo_x(const __m128i *const s,
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const __m128i *const coeffs) {
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__m128i ss[4];
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ss[0] = _mm_unpacklo_epi8(s[0], _mm_setzero_si128());
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ss[1] = _mm_unpacklo_epi8(s[1], _mm_setzero_si128());
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ss[2] = _mm_unpacklo_epi8(s[2], _mm_setzero_si128());
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ss[3] = _mm_unpacklo_epi8(s[3], _mm_setzero_si128());
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return convolve(ss, coeffs);
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}
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static INLINE __m128i convolve_lo_y(const __m128i *const s,
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const __m128i *const coeffs) {
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__m128i ss[4];
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ss[0] = _mm_unpacklo_epi8(s[0], _mm_setzero_si128());
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ss[1] = _mm_unpacklo_epi8(s[2], _mm_setzero_si128());
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ss[2] = _mm_unpacklo_epi8(s[4], _mm_setzero_si128());
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ss[3] = _mm_unpacklo_epi8(s[6], _mm_setzero_si128());
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return convolve(ss, coeffs);
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}
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static INLINE __m128i convolve_hi_y(const __m128i *const s,
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const __m128i *const coeffs) {
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__m128i ss[4];
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ss[0] = _mm_unpackhi_epi8(s[0], _mm_setzero_si128());
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ss[1] = _mm_unpackhi_epi8(s[2], _mm_setzero_si128());
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ss[2] = _mm_unpackhi_epi8(s[4], _mm_setzero_si128());
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ss[3] = _mm_unpackhi_epi8(s[6], _mm_setzero_si128());
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return convolve(ss, coeffs);
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}
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void av1_convolve_y_sr_12tap_sse2(const uint8_t *src, int src_stride,
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uint8_t *dst, int dst_stride, int w, int h,
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const InterpFilterParams *filter_params_y,
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int subpel_y_qn) {
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const int fo_vert = filter_params_y->taps / 2 - 1;
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const uint8_t *src_ptr = src - fo_vert * src_stride;
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const __m128i round_const = _mm_set1_epi32((1 << FILTER_BITS) >> 1);
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const __m128i round_shift = _mm_cvtsi32_si128(FILTER_BITS);
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__m128i coeffs[6];
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prepare_coeffs_12tap(filter_params_y, subpel_y_qn, coeffs);
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int j = 0;
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do {
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__m128i s[12], src10, res_lo, res_hi;
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__m128i res_lo_round, res_hi_round, res16, res;
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const uint8_t *data = &src_ptr[j];
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src10 = _mm_loadl_epi64((__m128i *)(data + 10 * src_stride));
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s[0] =
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_mm_unpacklo_epi8(_mm_loadl_epi64((__m128i *)(data + 0 * src_stride)),
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_mm_loadl_epi64((__m128i *)(data + 1 * src_stride)));
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s[1] =
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_mm_unpacklo_epi8(_mm_loadl_epi64((__m128i *)(data + 1 * src_stride)),
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_mm_loadl_epi64((__m128i *)(data + 2 * src_stride)));
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s[2] =
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_mm_unpacklo_epi8(_mm_loadl_epi64((__m128i *)(data + 2 * src_stride)),
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_mm_loadl_epi64((__m128i *)(data + 3 * src_stride)));
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s[3] =
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_mm_unpacklo_epi8(_mm_loadl_epi64((__m128i *)(data + 3 * src_stride)),
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_mm_loadl_epi64((__m128i *)(data + 4 * src_stride)));
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s[4] =
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_mm_unpacklo_epi8(_mm_loadl_epi64((__m128i *)(data + 4 * src_stride)),
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_mm_loadl_epi64((__m128i *)(data + 5 * src_stride)));
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s[5] =
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_mm_unpacklo_epi8(_mm_loadl_epi64((__m128i *)(data + 5 * src_stride)),
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_mm_loadl_epi64((__m128i *)(data + 6 * src_stride)));
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s[6] =
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_mm_unpacklo_epi8(_mm_loadl_epi64((__m128i *)(data + 6 * src_stride)),
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_mm_loadl_epi64((__m128i *)(data + 7 * src_stride)));
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s[7] =
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_mm_unpacklo_epi8(_mm_loadl_epi64((__m128i *)(data + 7 * src_stride)),
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_mm_loadl_epi64((__m128i *)(data + 8 * src_stride)));
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s[8] =
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_mm_unpacklo_epi8(_mm_loadl_epi64((__m128i *)(data + 8 * src_stride)),
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_mm_loadl_epi64((__m128i *)(data + 9 * src_stride)));
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s[9] = _mm_unpacklo_epi8(
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_mm_loadl_epi64((__m128i *)(data + 9 * src_stride)), src10);
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int i = 0;
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do {
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data = &src_ptr[i * src_stride + j];
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s[10] = _mm_unpacklo_epi8(
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src10, _mm_loadl_epi64((__m128i *)(data + 11 * src_stride)));
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src10 = _mm_loadl_epi64((__m128i *)(data + 12 * src_stride));
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s[11] = _mm_unpacklo_epi8(
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_mm_loadl_epi64((__m128i *)(data + 11 * src_stride)), src10);
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res_lo = convolve_lo_y_12tap(s, coeffs); // Filter low index pixels
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res_hi = convolve_hi_y_12tap(s, coeffs); // Filter high index pixels
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res_lo_round =
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_mm_sra_epi32(_mm_add_epi32(res_lo, round_const), round_shift);
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res_hi_round =
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_mm_sra_epi32(_mm_add_epi32(res_hi, round_const), round_shift);
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res16 = _mm_packs_epi32(res_lo_round, res_hi_round);
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res = _mm_packus_epi16(res16, res16);
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_mm_storel_epi64((__m128i *)(dst + i * dst_stride + j), res);
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i++;
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res_lo = convolve_lo_y_12tap(s + 1, coeffs); // Filter low index pixels
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res_hi = convolve_hi_y_12tap(s + 1, coeffs); // Filter high index pixels
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res_lo_round =
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_mm_sra_epi32(_mm_add_epi32(res_lo, round_const), round_shift);
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res_hi_round =
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_mm_sra_epi32(_mm_add_epi32(res_hi, round_const), round_shift);
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res16 = _mm_packs_epi32(res_lo_round, res_hi_round);
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res = _mm_packus_epi16(res16, res16);
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_mm_storel_epi64((__m128i *)(dst + i * dst_stride + j), res);
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i++;
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s[0] = s[2];
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s[1] = s[3];
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s[2] = s[4];
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s[3] = s[5];
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s[4] = s[6];
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s[5] = s[7];
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s[6] = s[8];
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s[7] = s[9];
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s[8] = s[10];
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s[9] = s[11];
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} while (i < h);
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j += 8;
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} while (j < w);
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}
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void av1_convolve_y_sr_sse2(const uint8_t *src, int src_stride, uint8_t *dst,
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int dst_stride, int w, int h,
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const InterpFilterParams *filter_params_y,
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const int subpel_y_qn) {
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if (filter_params_y->taps > 8) {
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if (w < 8) {
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av1_convolve_y_sr_c(src, src_stride, dst, dst_stride, w, h,
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filter_params_y, subpel_y_qn);
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} else {
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av1_convolve_y_sr_12tap_sse2(src, src_stride, dst, dst_stride, w, h,
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filter_params_y, subpel_y_qn);
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}
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} else {
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const int fo_vert = filter_params_y->taps / 2 - 1;
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const uint8_t *src_ptr = src - fo_vert * src_stride;
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const __m128i round_const = _mm_set1_epi32((1 << FILTER_BITS) >> 1);
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const __m128i round_shift = _mm_cvtsi32_si128(FILTER_BITS);
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__m128i coeffs[4];
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prepare_coeffs(filter_params_y, subpel_y_qn, coeffs);
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if (w <= 4) {
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__m128i s[8], src6, res, res_round, res16;
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int res_int;
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src6 = _mm_cvtsi32_si128(*(int *)(src_ptr + 6 * src_stride));
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s[0] = _mm_unpacklo_epi8(
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_mm_cvtsi32_si128(*(int *)(src_ptr + 0 * src_stride)),
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_mm_cvtsi32_si128(*(int *)(src_ptr + 1 * src_stride)));
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s[1] = _mm_unpacklo_epi8(
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_mm_cvtsi32_si128(*(int *)(src_ptr + 1 * src_stride)),
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_mm_cvtsi32_si128(*(int *)(src_ptr + 2 * src_stride)));
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s[2] = _mm_unpacklo_epi8(
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_mm_cvtsi32_si128(*(int *)(src_ptr + 2 * src_stride)),
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_mm_cvtsi32_si128(*(int *)(src_ptr + 3 * src_stride)));
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s[3] = _mm_unpacklo_epi8(
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_mm_cvtsi32_si128(*(int *)(src_ptr + 3 * src_stride)),
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_mm_cvtsi32_si128(*(int *)(src_ptr + 4 * src_stride)));
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s[4] = _mm_unpacklo_epi8(
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_mm_cvtsi32_si128(*(int *)(src_ptr + 4 * src_stride)),
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_mm_cvtsi32_si128(*(int *)(src_ptr + 5 * src_stride)));
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s[5] = _mm_unpacklo_epi8(
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_mm_cvtsi32_si128(*(int *)(src_ptr + 5 * src_stride)), src6);
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do {
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s[6] = _mm_unpacklo_epi8(
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src6, _mm_cvtsi32_si128(*(int *)(src_ptr + 7 * src_stride)));
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src6 = _mm_cvtsi32_si128(*(int *)(src_ptr + 8 * src_stride));
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s[7] = _mm_unpacklo_epi8(
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_mm_cvtsi32_si128(*(int *)(src_ptr + 7 * src_stride)), src6);
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res = convolve_lo_y(s + 0, coeffs);
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res_round = _mm_sra_epi32(_mm_add_epi32(res, round_const), round_shift);
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res16 = _mm_packs_epi32(res_round, res_round);
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res_int = _mm_cvtsi128_si32(_mm_packus_epi16(res16, res16));
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if (w == 2)
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*(uint16_t *)dst = (uint16_t)res_int;
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else
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*(int *)dst = res_int;
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src_ptr += src_stride;
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dst += dst_stride;
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res = convolve_lo_y(s + 1, coeffs);
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res_round = _mm_sra_epi32(_mm_add_epi32(res, round_const), round_shift);
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res16 = _mm_packs_epi32(res_round, res_round);
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res_int = _mm_cvtsi128_si32(_mm_packus_epi16(res16, res16));
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if (w == 2)
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*(uint16_t *)dst = (uint16_t)res_int;
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else
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*(int *)dst = res_int;
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src_ptr += src_stride;
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dst += dst_stride;
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s[0] = s[2];
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s[1] = s[3];
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s[2] = s[4];
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s[3] = s[5];
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s[4] = s[6];
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s[5] = s[7];
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h -= 2;
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} while (h);
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} else {
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assert(!(w % 8));
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int j = 0;
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do {
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__m128i s[8], src6, res_lo, res_hi;
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__m128i res_lo_round, res_hi_round, res16, res;
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const uint8_t *data = &src_ptr[j];
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src6 = _mm_loadl_epi64((__m128i *)(data + 6 * src_stride));
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s[0] = _mm_unpacklo_epi8(
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_mm_loadl_epi64((__m128i *)(data + 0 * src_stride)),
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_mm_loadl_epi64((__m128i *)(data + 1 * src_stride)));
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s[1] = _mm_unpacklo_epi8(
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_mm_loadl_epi64((__m128i *)(data + 1 * src_stride)),
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_mm_loadl_epi64((__m128i *)(data + 2 * src_stride)));
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s[2] = _mm_unpacklo_epi8(
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_mm_loadl_epi64((__m128i *)(data + 2 * src_stride)),
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_mm_loadl_epi64((__m128i *)(data + 3 * src_stride)));
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s[3] = _mm_unpacklo_epi8(
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_mm_loadl_epi64((__m128i *)(data + 3 * src_stride)),
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_mm_loadl_epi64((__m128i *)(data + 4 * src_stride)));
|
||
|
|
s[4] = _mm_unpacklo_epi8(
|
||
|
|
_mm_loadl_epi64((__m128i *)(data + 4 * src_stride)),
|
||
|
|
_mm_loadl_epi64((__m128i *)(data + 5 * src_stride)));
|
||
|
|
s[5] = _mm_unpacklo_epi8(
|
||
|
|
_mm_loadl_epi64((__m128i *)(data + 5 * src_stride)), src6);
|
||
|
|
|
||
|
|
int i = 0;
|
||
|
|
do {
|
||
|
|
data = &src_ptr[i * src_stride + j];
|
||
|
|
s[6] = _mm_unpacklo_epi8(
|
||
|
|
src6, _mm_loadl_epi64((__m128i *)(data + 7 * src_stride)));
|
||
|
|
src6 = _mm_loadl_epi64((__m128i *)(data + 8 * src_stride));
|
||
|
|
s[7] = _mm_unpacklo_epi8(
|
||
|
|
_mm_loadl_epi64((__m128i *)(data + 7 * src_stride)), src6);
|
||
|
|
|
||
|
|
res_lo = convolve_lo_y(s, coeffs); // Filter low index pixels
|
||
|
|
res_hi = convolve_hi_y(s, coeffs); // Filter high index pixels
|
||
|
|
|
||
|
|
res_lo_round =
|
||
|
|
_mm_sra_epi32(_mm_add_epi32(res_lo, round_const), round_shift);
|
||
|
|
res_hi_round =
|
||
|
|
_mm_sra_epi32(_mm_add_epi32(res_hi, round_const), round_shift);
|
||
|
|
|
||
|
|
res16 = _mm_packs_epi32(res_lo_round, res_hi_round);
|
||
|
|
res = _mm_packus_epi16(res16, res16);
|
||
|
|
|
||
|
|
_mm_storel_epi64((__m128i *)(dst + i * dst_stride + j), res);
|
||
|
|
i++;
|
||
|
|
|
||
|
|
res_lo = convolve_lo_y(s + 1, coeffs); // Filter low index pixels
|
||
|
|
res_hi = convolve_hi_y(s + 1, coeffs); // Filter high index pixels
|
||
|
|
|
||
|
|
res_lo_round =
|
||
|
|
_mm_sra_epi32(_mm_add_epi32(res_lo, round_const), round_shift);
|
||
|
|
res_hi_round =
|
||
|
|
_mm_sra_epi32(_mm_add_epi32(res_hi, round_const), round_shift);
|
||
|
|
|
||
|
|
res16 = _mm_packs_epi32(res_lo_round, res_hi_round);
|
||
|
|
res = _mm_packus_epi16(res16, res16);
|
||
|
|
|
||
|
|
_mm_storel_epi64((__m128i *)(dst + i * dst_stride + j), res);
|
||
|
|
i++;
|
||
|
|
|
||
|
|
s[0] = s[2];
|
||
|
|
s[1] = s[3];
|
||
|
|
s[2] = s[4];
|
||
|
|
s[3] = s[5];
|
||
|
|
s[4] = s[6];
|
||
|
|
s[5] = s[7];
|
||
|
|
} while (i < h);
|
||
|
|
j += 8;
|
||
|
|
} while (j < w);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
void av1_convolve_x_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,
|
||
|
|
int subpel_x_qn,
|
||
|
|
ConvolveParams *conv_params) {
|
||
|
|
const int fo_horiz = filter_params_x->taps / 2 - 1;
|
||
|
|
const uint8_t *src_ptr = src - fo_horiz;
|
||
|
|
const int bits = FILTER_BITS - conv_params->round_0;
|
||
|
|
const __m128i round_0_const =
|
||
|
|
_mm_set1_epi32((1 << conv_params->round_0) >> 1);
|
||
|
|
const __m128i round_const = _mm_set1_epi32((1 << bits) >> 1);
|
||
|
|
const __m128i round_0_shift = _mm_cvtsi32_si128(conv_params->round_0);
|
||
|
|
const __m128i round_shift = _mm_cvtsi32_si128(bits);
|
||
|
|
const __m128i zero = _mm_setzero_si128();
|
||
|
|
__m128i coeffs[6];
|
||
|
|
|
||
|
|
assert(bits >= 0);
|
||
|
|
assert((FILTER_BITS - conv_params->round_1) >= 0 ||
|
||
|
|
((conv_params->round_0 + conv_params->round_1) == 2 * FILTER_BITS));
|
||
|
|
|
||
|
|
prepare_coeffs_12tap(filter_params_x, subpel_x_qn, coeffs);
|
||
|
|
|
||
|
|
int i = 0;
|
||
|
|
do {
|
||
|
|
int j = 0;
|
||
|
|
do {
|
||
|
|
const __m128i data =
|
||
|
|
_mm_loadu_si128((__m128i *)&src_ptr[i * src_stride + j]);
|
||
|
|
__m128i s[4];
|
||
|
|
|
||
|
|
s[0] = _mm_unpacklo_epi16(data, _mm_srli_si128(data, 1));
|
||
|
|
s[1] =
|
||
|
|
_mm_unpacklo_epi16(_mm_srli_si128(data, 2), _mm_srli_si128(data, 3));
|
||
|
|
s[2] =
|
||
|
|
_mm_unpacklo_epi16(_mm_srli_si128(data, 4), _mm_srli_si128(data, 5));
|
||
|
|
s[3] =
|
||
|
|
_mm_unpacklo_epi16(_mm_srli_si128(data, 6), _mm_srli_si128(data, 7));
|
||
|
|
|
||
|
|
const __m128i res32 = convolve_lo_x_12tap(s, coeffs, zero);
|
||
|
|
|
||
|
|
__m128i res32_round =
|
||
|
|
_mm_sra_epi32(_mm_add_epi32(res32, round_0_const), round_0_shift);
|
||
|
|
res32_round =
|
||
|
|
_mm_sra_epi32(_mm_add_epi32(res32_round, round_const), round_shift);
|
||
|
|
|
||
|
|
const __m128i res16 = _mm_packs_epi32(res32_round, zero);
|
||
|
|
const __m128i res = _mm_packus_epi16(res16, zero);
|
||
|
|
|
||
|
|
const int val = _mm_cvtsi128_si32(res);
|
||
|
|
memcpy((dst + i * dst_stride + j), &val, sizeof(val));
|
||
|
|
j += 4;
|
||
|
|
} while (j < w);
|
||
|
|
} while (++i < h);
|
||
|
|
}
|
||
|
|
|
||
|
|
void av1_convolve_x_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 int subpel_x_qn,
|
||
|
|
ConvolveParams *conv_params) {
|
||
|
|
if (filter_params_x->taps > 8) {
|
||
|
|
if (w < 4) {
|
||
|
|
av1_convolve_x_sr_c(src, src_stride, dst, dst_stride, w, h,
|
||
|
|
filter_params_x, subpel_x_qn, conv_params);
|
||
|
|
} else {
|
||
|
|
av1_convolve_x_sr_12tap_sse2(src, src_stride, dst, dst_stride, w, h,
|
||
|
|
filter_params_x, subpel_x_qn, conv_params);
|
||
|
|
}
|
||
|
|
} else {
|
||
|
|
const int fo_horiz = filter_params_x->taps / 2 - 1;
|
||
|
|
const uint8_t *src_ptr = src - fo_horiz;
|
||
|
|
const int bits = FILTER_BITS - conv_params->round_0;
|
||
|
|
const __m128i round_0_const =
|
||
|
|
_mm_set1_epi32((1 << conv_params->round_0) >> 1);
|
||
|
|
const __m128i round_const = _mm_set1_epi32((1 << bits) >> 1);
|
||
|
|
const __m128i round_0_shift = _mm_cvtsi32_si128(conv_params->round_0);
|
||
|
|
const __m128i round_shift = _mm_cvtsi32_si128(bits);
|
||
|
|
__m128i coeffs[4];
|
||
|
|
|
||
|
|
assert(bits >= 0);
|
||
|
|
assert((FILTER_BITS - conv_params->round_1) >= 0 ||
|
||
|
|
((conv_params->round_0 + conv_params->round_1) == 2 * FILTER_BITS));
|
||
|
|
|
||
|
|
prepare_coeffs(filter_params_x, subpel_x_qn, coeffs);
|
||
|
|
|
||
|
|
if (w <= 4) {
|
||
|
|
do {
|
||
|
|
const __m128i data = _mm_loadu_si128((__m128i *)src_ptr);
|
||
|
|
__m128i s[4];
|
||
|
|
|
||
|
|
s[0] = _mm_unpacklo_epi8(data, _mm_srli_si128(data, 1));
|
||
|
|
s[1] =
|
||
|
|
_mm_unpacklo_epi8(_mm_srli_si128(data, 2), _mm_srli_si128(data, 3));
|
||
|
|
s[2] =
|
||
|
|
_mm_unpacklo_epi8(_mm_srli_si128(data, 4), _mm_srli_si128(data, 5));
|
||
|
|
s[3] =
|
||
|
|
_mm_unpacklo_epi8(_mm_srli_si128(data, 6), _mm_srli_si128(data, 7));
|
||
|
|
const __m128i res_lo = convolve_lo_x(s, coeffs);
|
||
|
|
__m128i res_lo_round =
|
||
|
|
_mm_sra_epi32(_mm_add_epi32(res_lo, round_0_const), round_0_shift);
|
||
|
|
res_lo_round = _mm_sra_epi32(_mm_add_epi32(res_lo_round, round_const),
|
||
|
|
round_shift);
|
||
|
|
|
||
|
|
const __m128i res16 = _mm_packs_epi32(res_lo_round, res_lo_round);
|
||
|
|
const __m128i res = _mm_packus_epi16(res16, res16);
|
||
|
|
|
||
|
|
int r = _mm_cvtsi128_si32(res);
|
||
|
|
if (w == 2)
|
||
|
|
*(uint16_t *)dst = (uint16_t)r;
|
||
|
|
else
|
||
|
|
*(int *)dst = r;
|
||
|
|
|
||
|
|
src_ptr += src_stride;
|
||
|
|
dst += dst_stride;
|
||
|
|
} while (--h);
|
||
|
|
} else {
|
||
|
|
assert(!(w % 8));
|
||
|
|
int i = 0;
|
||
|
|
do {
|
||
|
|
int j = 0;
|
||
|
|
do {
|
||
|
|
const __m128i data =
|
||
|
|
_mm_loadu_si128((__m128i *)&src_ptr[i * src_stride + j]);
|
||
|
|
__m128i s[4];
|
||
|
|
|
||
|
|
// Filter even-index pixels
|
||
|
|
s[0] = data;
|
||
|
|
s[1] = _mm_srli_si128(data, 2);
|
||
|
|
s[2] = _mm_srli_si128(data, 4);
|
||
|
|
s[3] = _mm_srli_si128(data, 6);
|
||
|
|
const __m128i res_even = convolve_lo_x(s, coeffs);
|
||
|
|
|
||
|
|
// Filter odd-index pixels
|
||
|
|
s[0] = _mm_srli_si128(data, 1);
|
||
|
|
s[1] = _mm_srli_si128(data, 3);
|
||
|
|
s[2] = _mm_srli_si128(data, 5);
|
||
|
|
s[3] = _mm_srli_si128(data, 7);
|
||
|
|
const __m128i res_odd = convolve_lo_x(s, coeffs);
|
||
|
|
|
||
|
|
// 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, round_0_const), round_0_shift);
|
||
|
|
res_lo_round = _mm_sra_epi32(_mm_add_epi32(res_lo_round, round_const),
|
||
|
|
round_shift);
|
||
|
|
__m128i res_hi_round = _mm_sra_epi32(
|
||
|
|
_mm_add_epi32(res_hi, round_0_const), round_0_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);
|
||
|
|
|
||
|
|
_mm_storel_epi64((__m128i *)(dst + i * dst_stride + j), res);
|
||
|
|
j += 8;
|
||
|
|
} while (j < w);
|
||
|
|
} while (++i < h);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|