510 строки
27 KiB
C
510 строки
27 KiB
C
/*
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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 <tmmintrin.h>
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#include "./av1_rtcd.h"
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#include "av1/common/warped_motion.h"
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/* This is a modified version of 'warped_filter' from warped_motion.c:
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* Each coefficient is stored in 8 bits instead of 16 bits
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* The coefficients are rearranged in the column order 0, 2, 4, 6, 1, 3, 5, 7
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This is done in order to avoid overflow: Since the tap with the largest
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coefficient could be any of taps 2, 3, 4 or 5, we can't use the summation
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order ((0 + 1) + (4 + 5)) + ((2 + 3) + (6 + 7)) used in the regular
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convolve functions.
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Instead, we use the summation order
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((0 + 2) + (4 + 6)) + ((1 + 3) + (5 + 7)).
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The rearrangement of coefficients in this table is so that we can get the
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coefficients into the correct order more quickly.
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*/
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/* clang-format off */
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DECLARE_ALIGNED(8, static const int8_t,
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filter_8bit[WARPEDPIXEL_PREC_SHIFTS * 3 + 1][8]) = {
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#if WARPEDPIXEL_PREC_BITS == 6
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// [-1, 0)
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{ 0, 127, 0, 0, 0, 1, 0, 0}, { 0, 127, 0, 0, -1, 2, 0, 0},
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{ 1, 127, -1, 0, -3, 4, 0, 0}, { 1, 126, -2, 0, -4, 6, 1, 0},
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{ 1, 126, -3, 0, -5, 8, 1, 0}, { 1, 125, -4, 0, -6, 11, 1, 0},
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{ 1, 124, -4, 0, -7, 13, 1, 0}, { 2, 123, -5, 0, -8, 15, 1, 0},
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{ 2, 122, -6, 0, -9, 18, 1, 0}, { 2, 121, -6, 0, -10, 20, 1, 0},
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{ 2, 120, -7, 0, -11, 22, 2, 0}, { 2, 119, -8, 0, -12, 25, 2, 0},
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{ 3, 117, -8, 0, -13, 27, 2, 0}, { 3, 116, -9, 0, -13, 29, 2, 0},
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{ 3, 114, -10, 0, -14, 32, 3, 0}, { 3, 113, -10, 0, -15, 35, 2, 0},
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{ 3, 111, -11, 0, -15, 37, 3, 0}, { 3, 109, -11, 0, -16, 40, 3, 0},
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{ 3, 108, -12, 0, -16, 42, 3, 0}, { 4, 106, -13, 0, -17, 45, 3, 0},
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{ 4, 104, -13, 0, -17, 47, 3, 0}, { 4, 102, -14, 0, -17, 50, 3, 0},
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{ 4, 100, -14, 0, -17, 52, 3, 0}, { 4, 98, -15, 0, -18, 55, 4, 0},
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{ 4, 96, -15, 0, -18, 58, 3, 0}, { 4, 94, -16, 0, -18, 60, 4, 0},
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{ 4, 91, -16, 0, -18, 63, 4, 0}, { 4, 89, -16, 0, -18, 65, 4, 0},
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{ 4, 87, -17, 0, -18, 68, 4, 0}, { 4, 85, -17, 0, -18, 70, 4, 0},
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{ 4, 82, -17, 0, -18, 73, 4, 0}, { 4, 80, -17, 0, -18, 75, 4, 0},
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{ 4, 78, -18, 0, -18, 78, 4, 0}, { 4, 75, -18, 0, -17, 80, 4, 0},
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{ 4, 73, -18, 0, -17, 82, 4, 0}, { 4, 70, -18, 0, -17, 85, 4, 0},
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{ 4, 68, -18, 0, -17, 87, 4, 0}, { 4, 65, -18, 0, -16, 89, 4, 0},
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{ 4, 63, -18, 0, -16, 91, 4, 0}, { 4, 60, -18, 0, -16, 94, 4, 0},
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{ 3, 58, -18, 0, -15, 96, 4, 0}, { 4, 55, -18, 0, -15, 98, 4, 0},
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{ 3, 52, -17, 0, -14, 100, 4, 0}, { 3, 50, -17, 0, -14, 102, 4, 0},
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{ 3, 47, -17, 0, -13, 104, 4, 0}, { 3, 45, -17, 0, -13, 106, 4, 0},
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{ 3, 42, -16, 0, -12, 108, 3, 0}, { 3, 40, -16, 0, -11, 109, 3, 0},
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{ 3, 37, -15, 0, -11, 111, 3, 0}, { 2, 35, -15, 0, -10, 113, 3, 0},
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{ 3, 32, -14, 0, -10, 114, 3, 0}, { 2, 29, -13, 0, -9, 116, 3, 0},
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{ 2, 27, -13, 0, -8, 117, 3, 0}, { 2, 25, -12, 0, -8, 119, 2, 0},
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{ 2, 22, -11, 0, -7, 120, 2, 0}, { 1, 20, -10, 0, -6, 121, 2, 0},
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{ 1, 18, -9, 0, -6, 122, 2, 0}, { 1, 15, -8, 0, -5, 123, 2, 0},
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{ 1, 13, -7, 0, -4, 124, 1, 0}, { 1, 11, -6, 0, -4, 125, 1, 0},
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{ 1, 8, -5, 0, -3, 126, 1, 0}, { 1, 6, -4, 0, -2, 126, 1, 0},
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{ 0, 4, -3, 0, -1, 127, 1, 0}, { 0, 2, -1, 0, 0, 127, 0, 0},
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// [0, 1)
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{ 0, 0, 1, 0, 0, 127, 0, 0}, { 0, -1, 2, 0, 0, 127, 0, 0},
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{ 0, -3, 4, 1, 1, 127, -2, 0}, { 0, -5, 6, 1, 1, 127, -2, 0},
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{ 0, -6, 8, 1, 2, 126, -3, 0}, {-1, -7, 11, 2, 2, 126, -4, -1},
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{-1, -8, 13, 2, 3, 125, -5, -1}, {-1, -10, 16, 3, 3, 124, -6, -1},
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{-1, -11, 18, 3, 4, 123, -7, -1}, {-1, -12, 20, 3, 4, 122, -7, -1},
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{-1, -13, 23, 3, 4, 121, -8, -1}, {-2, -14, 25, 4, 5, 120, -9, -1},
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{-1, -15, 27, 4, 5, 119, -10, -1}, {-1, -16, 30, 4, 5, 118, -11, -1},
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{-2, -17, 33, 5, 6, 116, -12, -1}, {-2, -17, 35, 5, 6, 114, -12, -1},
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{-2, -18, 38, 5, 6, 113, -13, -1}, {-2, -19, 41, 6, 7, 111, -14, -2},
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{-2, -19, 43, 6, 7, 110, -15, -2}, {-2, -20, 46, 6, 7, 108, -15, -2},
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{-2, -20, 49, 6, 7, 106, -16, -2}, {-2, -21, 51, 7, 7, 104, -16, -2},
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{-2, -21, 54, 7, 7, 102, -17, -2}, {-2, -21, 56, 7, 8, 100, -18, -2},
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{-2, -22, 59, 7, 8, 98, -18, -2}, {-2, -22, 62, 7, 8, 96, -19, -2},
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{-2, -22, 64, 7, 8, 94, -19, -2}, {-2, -22, 67, 8, 8, 91, -20, -2},
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{-2, -22, 69, 8, 8, 89, -20, -2}, {-2, -22, 72, 8, 8, 87, -21, -2},
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{-2, -21, 74, 8, 8, 84, -21, -2}, {-2, -22, 77, 8, 8, 82, -21, -2},
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{-2, -21, 79, 8, 8, 79, -21, -2}, {-2, -21, 82, 8, 8, 77, -22, -2},
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{-2, -21, 84, 8, 8, 74, -21, -2}, {-2, -21, 87, 8, 8, 72, -22, -2},
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{-2, -20, 89, 8, 8, 69, -22, -2}, {-2, -20, 91, 8, 8, 67, -22, -2},
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{-2, -19, 94, 8, 7, 64, -22, -2}, {-2, -19, 96, 8, 7, 62, -22, -2},
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{-2, -18, 98, 8, 7, 59, -22, -2}, {-2, -18, 100, 8, 7, 56, -21, -2},
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{-2, -17, 102, 7, 7, 54, -21, -2}, {-2, -16, 104, 7, 7, 51, -21, -2},
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{-2, -16, 106, 7, 6, 49, -20, -2}, {-2, -15, 108, 7, 6, 46, -20, -2},
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{-2, -15, 110, 7, 6, 43, -19, -2}, {-2, -14, 111, 7, 6, 41, -19, -2},
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{-1, -13, 113, 6, 5, 38, -18, -2}, {-1, -12, 114, 6, 5, 35, -17, -2},
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{-1, -12, 116, 6, 5, 33, -17, -2}, {-1, -11, 118, 5, 4, 30, -16, -1},
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{-1, -10, 119, 5, 4, 27, -15, -1}, {-1, -9, 120, 5, 4, 25, -14, -2},
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{-1, -8, 121, 4, 3, 23, -13, -1}, {-1, -7, 122, 4, 3, 20, -12, -1},
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{-1, -7, 123, 4, 3, 18, -11, -1}, {-1, -6, 124, 3, 3, 16, -10, -1},
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{-1, -5, 125, 3, 2, 13, -8, -1}, {-1, -4, 126, 2, 2, 11, -7, -1},
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{ 0, -3, 126, 2, 1, 8, -6, 0}, { 0, -2, 127, 1, 1, 6, -5, 0},
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{ 0, -2, 127, 1, 1, 4, -3, 0}, { 0, 0, 127, 0, 0, 2, -1, 0},
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// [1, 2)
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{ 0, 0, 127, 0, 0, 1, 0, 0}, { 0, 0, 127, 0, 0, -1, 2, 0},
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{ 0, 1, 127, -1, 0, -3, 4, 0}, { 0, 1, 126, -2, 0, -4, 6, 1},
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{ 0, 1, 126, -3, 0, -5, 8, 1}, { 0, 1, 125, -4, 0, -6, 11, 1},
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{ 0, 1, 124, -4, 0, -7, 13, 1}, { 0, 2, 123, -5, 0, -8, 15, 1},
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{ 0, 2, 122, -6, 0, -9, 18, 1}, { 0, 2, 121, -6, 0, -10, 20, 1},
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{ 0, 2, 120, -7, 0, -11, 22, 2}, { 0, 2, 119, -8, 0, -12, 25, 2},
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{ 0, 3, 117, -8, 0, -13, 27, 2}, { 0, 3, 116, -9, 0, -13, 29, 2},
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{ 0, 3, 114, -10, 0, -14, 32, 3}, { 0, 3, 113, -10, 0, -15, 35, 2},
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{ 0, 3, 111, -11, 0, -15, 37, 3}, { 0, 3, 109, -11, 0, -16, 40, 3},
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{ 0, 3, 108, -12, 0, -16, 42, 3}, { 0, 4, 106, -13, 0, -17, 45, 3},
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{ 0, 4, 104, -13, 0, -17, 47, 3}, { 0, 4, 102, -14, 0, -17, 50, 3},
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{ 0, 4, 100, -14, 0, -17, 52, 3}, { 0, 4, 98, -15, 0, -18, 55, 4},
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{ 0, 4, 96, -15, 0, -18, 58, 3}, { 0, 4, 94, -16, 0, -18, 60, 4},
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{ 0, 4, 91, -16, 0, -18, 63, 4}, { 0, 4, 89, -16, 0, -18, 65, 4},
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{ 0, 4, 87, -17, 0, -18, 68, 4}, { 0, 4, 85, -17, 0, -18, 70, 4},
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{ 0, 4, 82, -17, 0, -18, 73, 4}, { 0, 4, 80, -17, 0, -18, 75, 4},
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{ 0, 4, 78, -18, 0, -18, 78, 4}, { 0, 4, 75, -18, 0, -17, 80, 4},
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{ 0, 4, 73, -18, 0, -17, 82, 4}, { 0, 4, 70, -18, 0, -17, 85, 4},
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{ 0, 4, 68, -18, 0, -17, 87, 4}, { 0, 4, 65, -18, 0, -16, 89, 4},
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{ 0, 4, 63, -18, 0, -16, 91, 4}, { 0, 4, 60, -18, 0, -16, 94, 4},
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{ 0, 3, 58, -18, 0, -15, 96, 4}, { 0, 4, 55, -18, 0, -15, 98, 4},
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{ 0, 3, 52, -17, 0, -14, 100, 4}, { 0, 3, 50, -17, 0, -14, 102, 4},
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{ 0, 3, 47, -17, 0, -13, 104, 4}, { 0, 3, 45, -17, 0, -13, 106, 4},
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{ 0, 3, 42, -16, 0, -12, 108, 3}, { 0, 3, 40, -16, 0, -11, 109, 3},
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{ 0, 3, 37, -15, 0, -11, 111, 3}, { 0, 2, 35, -15, 0, -10, 113, 3},
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{ 0, 3, 32, -14, 0, -10, 114, 3}, { 0, 2, 29, -13, 0, -9, 116, 3},
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{ 0, 2, 27, -13, 0, -8, 117, 3}, { 0, 2, 25, -12, 0, -8, 119, 2},
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{ 0, 2, 22, -11, 0, -7, 120, 2}, { 0, 1, 20, -10, 0, -6, 121, 2},
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{ 0, 1, 18, -9, 0, -6, 122, 2}, { 0, 1, 15, -8, 0, -5, 123, 2},
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{ 0, 1, 13, -7, 0, -4, 124, 1}, { 0, 1, 11, -6, 0, -4, 125, 1},
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{ 0, 1, 8, -5, 0, -3, 126, 1}, { 0, 1, 6, -4, 0, -2, 126, 1},
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{ 0, 0, 4, -3, 0, -1, 127, 1}, { 0, 0, 2, -1, 0, 0, 127, 0},
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// dummy (replicate row index 191)
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{ 0, 0, 2, -1, 0, 0, 127, 0},
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#else
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// [-1, 0)
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{ 0, 127, 0, 0, 0, 1, 0, 0}, { 1, 127, -1, 0, -3, 4, 0, 0},
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{ 1, 126, -3, 0, -5, 8, 1, 0}, { 1, 124, -4, 0, -7, 13, 1, 0},
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{ 2, 122, -6, 0, -9, 18, 1, 0}, { 2, 120, -7, 0, -11, 22, 2, 0},
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{ 3, 117, -8, 0, -13, 27, 2, 0}, { 3, 114, -10, 0, -14, 32, 3, 0},
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{ 3, 111, -11, 0, -15, 37, 3, 0}, { 3, 108, -12, 0, -16, 42, 3, 0},
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{ 4, 104, -13, 0, -17, 47, 3, 0}, { 4, 100, -14, 0, -17, 52, 3, 0},
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{ 4, 96, -15, 0, -18, 58, 3, 0}, { 4, 91, -16, 0, -18, 63, 4, 0},
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{ 4, 87, -17, 0, -18, 68, 4, 0}, { 4, 82, -17, 0, -18, 73, 4, 0},
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{ 4, 78, -18, 0, -18, 78, 4, 0}, { 4, 73, -18, 0, -17, 82, 4, 0},
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{ 4, 68, -18, 0, -17, 87, 4, 0}, { 4, 63, -18, 0, -16, 91, 4, 0},
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{ 3, 58, -18, 0, -15, 96, 4, 0}, { 3, 52, -17, 0, -14, 100, 4, 0},
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{ 3, 47, -17, 0, -13, 104, 4, 0}, { 3, 42, -16, 0, -12, 108, 3, 0},
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{ 3, 37, -15, 0, -11, 111, 3, 0}, { 3, 32, -14, 0, -10, 114, 3, 0},
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{ 2, 27, -13, 0, -8, 117, 3, 0}, { 2, 22, -11, 0, -7, 120, 2, 0},
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{ 1, 18, -9, 0, -6, 122, 2, 0}, { 1, 13, -7, 0, -4, 124, 1, 0},
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{ 1, 8, -5, 0, -3, 126, 1, 0}, { 0, 4, -3, 0, -1, 127, 1, 0},
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// [0, 1)
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{ 0, 0, 1, 0, 0, 127, 0, 0}, { 0, -3, 4, 1, 1, 127, -2, 0},
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{ 0, -6, 8, 1, 2, 126, -3, 0}, {-1, -8, 13, 2, 3, 125, -5, -1},
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{-1, -11, 18, 3, 4, 123, -7, -1}, {-1, -13, 23, 3, 4, 121, -8, -1},
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{-1, -15, 27, 4, 5, 119, -10, -1}, {-2, -17, 33, 5, 6, 116, -12, -1},
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{-2, -18, 38, 5, 6, 113, -13, -1}, {-2, -19, 43, 6, 7, 110, -15, -2},
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{-2, -20, 49, 6, 7, 106, -16, -2}, {-2, -21, 54, 7, 7, 102, -17, -2},
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{-2, -22, 59, 7, 8, 98, -18, -2}, {-2, -22, 64, 7, 8, 94, -19, -2},
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{-2, -22, 69, 8, 8, 89, -20, -2}, {-2, -21, 74, 8, 8, 84, -21, -2},
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{-2, -21, 79, 8, 8, 79, -21, -2}, {-2, -21, 84, 8, 8, 74, -21, -2},
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{-2, -20, 89, 8, 8, 69, -22, -2}, {-2, -19, 94, 8, 7, 64, -22, -2},
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{-2, -18, 98, 8, 7, 59, -22, -2}, {-2, -17, 102, 7, 7, 54, -21, -2},
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{-2, -16, 106, 7, 6, 49, -20, -2}, {-2, -15, 110, 7, 6, 43, -19, -2},
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{-1, -13, 113, 6, 5, 38, -18, -2}, {-1, -12, 116, 6, 5, 33, -17, -2},
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{-1, -10, 119, 5, 4, 27, -15, -1}, {-1, -8, 121, 4, 3, 23, -13, -1},
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{-1, -7, 123, 4, 3, 18, -11, -1}, {-1, -5, 125, 3, 2, 13, -8, -1},
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{ 0, -3, 126, 2, 1, 8, -6, 0}, { 0, -2, 127, 1, 1, 4, -3, 0},
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// [1, 2)
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{ 0, 0, 127, 0, 0, 1, 0, 0}, { 0, 1, 127, -1, 0, -3, 4, 0},
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{ 0, 1, 126, -3, 0, -5, 8, 1}, { 0, 1, 124, -4, 0, -7, 13, 1},
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{ 0, 2, 122, -6, 0, -9, 18, 1}, { 0, 2, 120, -7, 0, -11, 22, 2},
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{ 0, 3, 117, -8, 0, -13, 27, 2}, { 0, 3, 114, -10, 0, -14, 32, 3},
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{ 0, 3, 111, -11, 0, -15, 37, 3}, { 0, 3, 108, -12, 0, -16, 42, 3},
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{ 0, 4, 104, -13, 0, -17, 47, 3}, { 0, 4, 100, -14, 0, -17, 52, 3},
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{ 0, 4, 96, -15, 0, -18, 58, 3}, { 0, 4, 91, -16, 0, -18, 63, 4},
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{ 0, 4, 87, -17, 0, -18, 68, 4}, { 0, 4, 82, -17, 0, -18, 73, 4},
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{ 0, 4, 78, -18, 0, -18, 78, 4}, { 0, 4, 73, -18, 0, -17, 82, 4},
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{ 0, 4, 68, -18, 0, -17, 87, 4}, { 0, 4, 63, -18, 0, -16, 91, 4},
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{ 0, 3, 58, -18, 0, -15, 96, 4}, { 0, 3, 52, -17, 0, -14, 100, 4},
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{ 0, 3, 47, -17, 0, -13, 104, 4}, { 0, 3, 42, -16, 0, -12, 108, 3},
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{ 0, 3, 37, -15, 0, -11, 111, 3}, { 0, 3, 32, -14, 0, -10, 114, 3},
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{ 0, 2, 27, -13, 0, -8, 117, 3}, { 0, 2, 22, -11, 0, -7, 120, 2},
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{ 0, 1, 18, -9, 0, -6, 122, 2}, { 0, 1, 13, -7, 0, -4, 124, 1},
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{ 0, 1, 8, -5, 0, -3, 126, 1}, { 0, 0, 4, -3, 0, -1, 127, 1},
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// dummy (replicate row index 95)
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{ 0, 0, 4, -3, 0, -1, 127, 1},
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#endif // WARPEDPIXEL_PREC_BITS == 6
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};
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/* clang-format on */
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// Shuffle masks: we want to convert a sequence of bytes 0, 1, 2, ..., 15
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// in an SSE register into two sequences:
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// 0, 2, 2, 4, ..., 12, 12, 14, <don't care>
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// 1, 3, 3, 5, ..., 13, 13, 15, <don't care>
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static const uint8_t even_mask[16] = { 0, 2, 2, 4, 4, 6, 6, 8,
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8, 10, 10, 12, 12, 14, 14, 0 };
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static const uint8_t odd_mask[16] = { 1, 3, 3, 5, 5, 7, 7, 9,
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9, 11, 11, 13, 13, 15, 15, 0 };
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void av1_warp_affine_ssse3(const int32_t *mat, const uint8_t *ref, int width,
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int height, int stride, uint8_t *pred, int p_col,
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int p_row, int p_width, int p_height, int p_stride,
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int subsampling_x, int subsampling_y,
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ConvolveParams *conv_params, int16_t alpha,
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int16_t beta, int16_t gamma, int16_t delta) {
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int comp_avg = conv_params->do_average;
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__m128i tmp[15];
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int i, j, k;
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const int bd = 8;
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/* Note: For this code to work, the left/right frame borders need to be
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extended by at least 13 pixels each. By the time we get here, other
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code will have set up this border, but we allow an explicit check
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for debugging purposes.
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*/
|
|
/*for (i = 0; i < height; ++i) {
|
|
for (j = 0; j < 13; ++j) {
|
|
assert(ref[i * stride - 13 + j] == ref[i * stride]);
|
|
assert(ref[i * stride + width + j] == ref[i * stride + (width - 1)]);
|
|
}
|
|
}*/
|
|
|
|
for (i = 0; i < p_height; i += 8) {
|
|
for (j = 0; j < p_width; j += 8) {
|
|
// (x, y) coordinates of the center of this block in the destination
|
|
// image
|
|
const int32_t dst_x = p_col + j + 4;
|
|
const int32_t dst_y = p_row + i + 4;
|
|
|
|
int32_t x4, y4, ix4, sx4, iy4, sy4;
|
|
if (subsampling_x)
|
|
x4 = (mat[2] * 4 * dst_x + mat[3] * 4 * dst_y + mat[0] * 2 +
|
|
(mat[2] + mat[3] - (1 << WARPEDMODEL_PREC_BITS))) /
|
|
4;
|
|
else
|
|
x4 = mat[2] * dst_x + mat[3] * dst_y + mat[0];
|
|
|
|
if (subsampling_y)
|
|
y4 = (mat[4] * 4 * dst_x + mat[5] * 4 * dst_y + mat[1] * 2 +
|
|
(mat[4] + mat[5] - (1 << WARPEDMODEL_PREC_BITS))) /
|
|
4;
|
|
else
|
|
y4 = mat[4] * dst_x + mat[5] * dst_y + mat[1];
|
|
|
|
ix4 = x4 >> WARPEDMODEL_PREC_BITS;
|
|
sx4 = x4 & ((1 << WARPEDMODEL_PREC_BITS) - 1);
|
|
iy4 = y4 >> WARPEDMODEL_PREC_BITS;
|
|
sy4 = y4 & ((1 << WARPEDMODEL_PREC_BITS) - 1);
|
|
|
|
// Add in all the constant terms, including rounding and offset
|
|
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 the block is aligned such that, after clamping, every sample
|
|
// would be taken from the leftmost/rightmost column, then we can
|
|
// skip the expensive horizontal filter.
|
|
if (ix4 <= -7) {
|
|
for (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] = _mm_set1_epi16(
|
|
(1 << (bd + WARPEDPIXEL_FILTER_BITS - HORSHEAR_REDUCE_PREC_BITS -
|
|
1)) +
|
|
ref[iy * stride] *
|
|
(1 << (WARPEDPIXEL_FILTER_BITS - HORSHEAR_REDUCE_PREC_BITS)));
|
|
}
|
|
} else if (ix4 >= width + 6) {
|
|
for (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] = _mm_set1_epi16(
|
|
(1 << (bd + WARPEDPIXEL_FILTER_BITS - HORSHEAR_REDUCE_PREC_BITS -
|
|
1)) +
|
|
ref[iy * stride + (width - 1)] *
|
|
(1 << (WARPEDPIXEL_FILTER_BITS - HORSHEAR_REDUCE_PREC_BITS)));
|
|
}
|
|
} else {
|
|
for (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;
|
|
int sx = sx4 + beta * (k + 4);
|
|
|
|
// Load source pixels
|
|
const __m128i src =
|
|
_mm_loadu_si128((__m128i *)(ref + iy * stride + ix4 - 7));
|
|
const __m128i src_even =
|
|
_mm_shuffle_epi8(src, _mm_loadu_si128((__m128i *)even_mask));
|
|
const __m128i src_odd =
|
|
_mm_shuffle_epi8(src, _mm_loadu_si128((__m128i *)odd_mask));
|
|
|
|
// Filter even-index pixels
|
|
const __m128i tmp_0 = _mm_loadl_epi64((
|
|
__m128i *)&filter_8bit[(sx + 0 * alpha) >> WARPEDDIFF_PREC_BITS]);
|
|
const __m128i tmp_1 = _mm_loadl_epi64((
|
|
__m128i *)&filter_8bit[(sx + 1 * alpha) >> WARPEDDIFF_PREC_BITS]);
|
|
const __m128i tmp_2 = _mm_loadl_epi64((
|
|
__m128i *)&filter_8bit[(sx + 2 * alpha) >> WARPEDDIFF_PREC_BITS]);
|
|
const __m128i tmp_3 = _mm_loadl_epi64((
|
|
__m128i *)&filter_8bit[(sx + 3 * alpha) >> WARPEDDIFF_PREC_BITS]);
|
|
const __m128i tmp_4 = _mm_loadl_epi64((
|
|
__m128i *)&filter_8bit[(sx + 4 * alpha) >> WARPEDDIFF_PREC_BITS]);
|
|
const __m128i tmp_5 = _mm_loadl_epi64((
|
|
__m128i *)&filter_8bit[(sx + 5 * alpha) >> WARPEDDIFF_PREC_BITS]);
|
|
const __m128i tmp_6 = _mm_loadl_epi64((
|
|
__m128i *)&filter_8bit[(sx + 6 * alpha) >> WARPEDDIFF_PREC_BITS]);
|
|
const __m128i tmp_7 = _mm_loadl_epi64((
|
|
__m128i *)&filter_8bit[(sx + 7 * alpha) >> WARPEDDIFF_PREC_BITS]);
|
|
|
|
// Coeffs 0 2 0 2 4 6 4 6 1 3 1 3 5 7 5 7 for pixels 0 2
|
|
const __m128i tmp_8 = _mm_unpacklo_epi16(tmp_0, tmp_2);
|
|
// Coeffs 0 2 0 2 4 6 4 6 1 3 1 3 5 7 5 7 for pixels 1 3
|
|
const __m128i tmp_9 = _mm_unpacklo_epi16(tmp_1, tmp_3);
|
|
// Coeffs 0 2 0 2 4 6 4 6 1 3 1 3 5 7 5 7 for pixels 4 6
|
|
const __m128i tmp_10 = _mm_unpacklo_epi16(tmp_4, tmp_6);
|
|
// Coeffs 0 2 0 2 4 6 4 6 1 3 1 3 5 7 5 7 for pixels 5 7
|
|
const __m128i tmp_11 = _mm_unpacklo_epi16(tmp_5, tmp_7);
|
|
|
|
// Coeffs 0 2 0 2 0 2 0 2 4 6 4 6 4 6 4 6 for pixels 0 2 4 6
|
|
const __m128i tmp_12 = _mm_unpacklo_epi32(tmp_8, tmp_10);
|
|
// Coeffs 1 3 1 3 1 3 1 3 5 7 5 7 5 7 5 7 for pixels 0 2 4 6
|
|
const __m128i tmp_13 = _mm_unpackhi_epi32(tmp_8, tmp_10);
|
|
// Coeffs 0 2 0 2 0 2 0 2 4 6 4 6 4 6 4 6 for pixels 1 3 5 7
|
|
const __m128i tmp_14 = _mm_unpacklo_epi32(tmp_9, tmp_11);
|
|
// Coeffs 1 3 1 3 1 3 1 3 5 7 5 7 5 7 5 7 for pixels 1 3 5 7
|
|
const __m128i tmp_15 = _mm_unpackhi_epi32(tmp_9, tmp_11);
|
|
|
|
// Coeffs 0 2 for pixels 0 2 4 6 1 3 5 7
|
|
const __m128i coeff_02 = _mm_unpacklo_epi64(tmp_12, tmp_14);
|
|
// Coeffs 4 6 for pixels 0 2 4 6 1 3 5 7
|
|
const __m128i coeff_46 = _mm_unpackhi_epi64(tmp_12, tmp_14);
|
|
// Coeffs 1 3 for pixels 0 2 4 6 1 3 5 7
|
|
const __m128i coeff_13 = _mm_unpacklo_epi64(tmp_13, tmp_15);
|
|
// Coeffs 5 7 for pixels 0 2 4 6 1 3 5 7
|
|
const __m128i coeff_57 = _mm_unpackhi_epi64(tmp_13, tmp_15);
|
|
|
|
// The pixel order we need for 'src' is:
|
|
// 0 2 2 4 4 6 6 8 1 3 3 5 5 7 7 9
|
|
const __m128i src_02 = _mm_unpacklo_epi64(src_even, src_odd);
|
|
const __m128i res_02 = _mm_maddubs_epi16(src_02, coeff_02);
|
|
// 4 6 6 8 8 10 10 12 5 7 7 9 9 11 11 13
|
|
const __m128i src_46 = _mm_unpacklo_epi64(_mm_srli_si128(src_even, 4),
|
|
_mm_srli_si128(src_odd, 4));
|
|
const __m128i res_46 = _mm_maddubs_epi16(src_46, coeff_46);
|
|
// 1 3 3 5 5 7 7 9 2 4 4 6 6 8 8 10
|
|
const __m128i src_13 =
|
|
_mm_unpacklo_epi64(src_odd, _mm_srli_si128(src_even, 2));
|
|
const __m128i res_13 = _mm_maddubs_epi16(src_13, coeff_13);
|
|
// 5 7 7 9 9 11 11 13 6 8 8 10 10 12 12 14
|
|
const __m128i src_57 = _mm_unpacklo_epi64(
|
|
_mm_srli_si128(src_odd, 4), _mm_srli_si128(src_even, 6));
|
|
const __m128i res_57 = _mm_maddubs_epi16(src_57, coeff_57);
|
|
|
|
const __m128i round_const =
|
|
_mm_set1_epi16((1 << (bd + WARPEDPIXEL_FILTER_BITS - 1)) +
|
|
((1 << HORSHEAR_REDUCE_PREC_BITS) >> 1));
|
|
|
|
// Note: The values res_02 + res_46 and res_13 + res_57 both
|
|
// fit into int16s at this point, but their sum may be too wide to fit
|
|
// into an int16. However, once we also add round_const, the sum of
|
|
// all of these fits into a uint16.
|
|
//
|
|
// The wrapping behaviour of _mm_add_* is used here to make sure we
|
|
// get the correct result despite converting between different
|
|
// (implicit) types.
|
|
const __m128i res_even = _mm_add_epi16(res_02, res_46);
|
|
const __m128i res_odd = _mm_add_epi16(res_13, res_57);
|
|
const __m128i res =
|
|
_mm_add_epi16(_mm_add_epi16(res_even, res_odd), round_const);
|
|
tmp[k + 7] = _mm_srli_epi16(res, HORSHEAR_REDUCE_PREC_BITS);
|
|
}
|
|
}
|
|
|
|
// Vertical filter
|
|
for (k = -4; k < AOMMIN(4, p_height - i - 4); ++k) {
|
|
int sy = sy4 + delta * (k + 4);
|
|
|
|
// Load from tmp and rearrange pairs of consecutive rows into the
|
|
// column order 0 0 2 2 4 4 6 6; 1 1 3 3 5 5 7 7
|
|
const __m128i *src = tmp + (k + 4);
|
|
const __m128i src_0 = _mm_unpacklo_epi16(src[0], src[1]);
|
|
const __m128i src_2 = _mm_unpacklo_epi16(src[2], src[3]);
|
|
const __m128i src_4 = _mm_unpacklo_epi16(src[4], src[5]);
|
|
const __m128i src_6 = _mm_unpacklo_epi16(src[6], src[7]);
|
|
|
|
// Filter even-index pixels
|
|
const __m128i tmp_0 = _mm_loadu_si128(
|
|
(__m128i *)(warped_filter +
|
|
((sy + 0 * gamma) >> WARPEDDIFF_PREC_BITS)));
|
|
const __m128i tmp_2 = _mm_loadu_si128(
|
|
(__m128i *)(warped_filter +
|
|
((sy + 2 * gamma) >> WARPEDDIFF_PREC_BITS)));
|
|
const __m128i tmp_4 = _mm_loadu_si128(
|
|
(__m128i *)(warped_filter +
|
|
((sy + 4 * gamma) >> WARPEDDIFF_PREC_BITS)));
|
|
const __m128i tmp_6 = _mm_loadu_si128(
|
|
(__m128i *)(warped_filter +
|
|
((sy + 6 * gamma) >> WARPEDDIFF_PREC_BITS)));
|
|
|
|
const __m128i tmp_8 = _mm_unpacklo_epi32(tmp_0, tmp_2);
|
|
const __m128i tmp_10 = _mm_unpacklo_epi32(tmp_4, tmp_6);
|
|
const __m128i tmp_12 = _mm_unpackhi_epi32(tmp_0, tmp_2);
|
|
const __m128i tmp_14 = _mm_unpackhi_epi32(tmp_4, tmp_6);
|
|
|
|
const __m128i coeff_0 = _mm_unpacklo_epi64(tmp_8, tmp_10);
|
|
const __m128i coeff_2 = _mm_unpackhi_epi64(tmp_8, tmp_10);
|
|
const __m128i coeff_4 = _mm_unpacklo_epi64(tmp_12, tmp_14);
|
|
const __m128i coeff_6 = _mm_unpackhi_epi64(tmp_12, tmp_14);
|
|
|
|
const __m128i res_0 = _mm_madd_epi16(src_0, coeff_0);
|
|
const __m128i res_2 = _mm_madd_epi16(src_2, coeff_2);
|
|
const __m128i res_4 = _mm_madd_epi16(src_4, coeff_4);
|
|
const __m128i res_6 = _mm_madd_epi16(src_6, coeff_6);
|
|
|
|
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(src[0], src[1]);
|
|
const __m128i src_3 = _mm_unpackhi_epi16(src[2], src[3]);
|
|
const __m128i src_5 = _mm_unpackhi_epi16(src[4], src[5]);
|
|
const __m128i src_7 = _mm_unpackhi_epi16(src[6], src[7]);
|
|
|
|
const __m128i tmp_1 = _mm_loadu_si128(
|
|
(__m128i *)(warped_filter +
|
|
((sy + 1 * gamma) >> WARPEDDIFF_PREC_BITS)));
|
|
const __m128i tmp_3 = _mm_loadu_si128(
|
|
(__m128i *)(warped_filter +
|
|
((sy + 3 * gamma) >> WARPEDDIFF_PREC_BITS)));
|
|
const __m128i tmp_5 = _mm_loadu_si128(
|
|
(__m128i *)(warped_filter +
|
|
((sy + 5 * gamma) >> WARPEDDIFF_PREC_BITS)));
|
|
const __m128i tmp_7 = _mm_loadu_si128(
|
|
(__m128i *)(warped_filter +
|
|
((sy + 7 * gamma) >> WARPEDDIFF_PREC_BITS)));
|
|
|
|
const __m128i tmp_9 = _mm_unpacklo_epi32(tmp_1, tmp_3);
|
|
const __m128i tmp_11 = _mm_unpacklo_epi32(tmp_5, tmp_7);
|
|
const __m128i tmp_13 = _mm_unpackhi_epi32(tmp_1, tmp_3);
|
|
const __m128i tmp_15 = _mm_unpackhi_epi32(tmp_5, tmp_7);
|
|
|
|
const __m128i coeff_1 = _mm_unpacklo_epi64(tmp_9, tmp_11);
|
|
const __m128i coeff_3 = _mm_unpackhi_epi64(tmp_9, tmp_11);
|
|
const __m128i coeff_5 = _mm_unpacklo_epi64(tmp_13, tmp_15);
|
|
const __m128i coeff_7 = _mm_unpackhi_epi64(tmp_13, tmp_15);
|
|
|
|
const __m128i res_1 = _mm_madd_epi16(src_1, coeff_1);
|
|
const __m128i res_3 = _mm_madd_epi16(src_3, coeff_3);
|
|
const __m128i res_5 = _mm_madd_epi16(src_5, coeff_5);
|
|
const __m128i res_7 = _mm_madd_epi16(src_7, coeff_7);
|
|
|
|
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);
|
|
|
|
// Round and pack into 8 bits
|
|
const __m128i round_const =
|
|
_mm_set1_epi32(-(1 << (bd + VERSHEAR_REDUCE_PREC_BITS - 1)) +
|
|
((1 << VERSHEAR_REDUCE_PREC_BITS) >> 1));
|
|
|
|
const __m128i res_lo_round = _mm_srai_epi32(
|
|
_mm_add_epi32(res_lo, round_const), VERSHEAR_REDUCE_PREC_BITS);
|
|
const __m128i res_hi_round = _mm_srai_epi32(
|
|
_mm_add_epi32(res_hi, round_const), VERSHEAR_REDUCE_PREC_BITS);
|
|
|
|
const __m128i res_16bit = _mm_packs_epi32(res_lo_round, res_hi_round);
|
|
__m128i res_8bit = _mm_packus_epi16(res_16bit, res_16bit);
|
|
|
|
// Store, blending with 'pred' if needed
|
|
__m128i *const p = (__m128i *)&pred[(i + k + 4) * p_stride + j];
|
|
|
|
// Note: If we're outputting a 4x4 block, we need to be very careful
|
|
// to only output 4 pixels at this point, to avoid encode/decode
|
|
// mismatches when encoding with multiple threads.
|
|
if (p_width == 4) {
|
|
if (comp_avg) {
|
|
const __m128i orig = _mm_cvtsi32_si128(*(uint32_t *)p);
|
|
res_8bit = _mm_avg_epu8(res_8bit, orig);
|
|
}
|
|
*(uint32_t *)p = _mm_cvtsi128_si32(res_8bit);
|
|
} else {
|
|
if (comp_avg) res_8bit = _mm_avg_epu8(res_8bit, _mm_loadl_epi64(p));
|
|
_mm_storel_epi64(p, res_8bit);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|