| /* |
| * Copyright (c) 2018, 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 <assert.h> |
| #include <arm_neon.h> |
| #include <memory.h> |
| #include <math.h> |
| |
| #include "aom_dsp/aom_dsp_common.h" |
| #include "aom_ports/mem.h" |
| #include "config/av1_rtcd.h" |
| #include "av1/common/warped_motion.h" |
| #include "av1/common/scale.h" |
| |
| /* This is a modified version of 'warped_filter' from warped_motion.c: |
| * Each coefficient is stored in 8 bits instead of 16 bits |
| * The coefficients are rearranged in the column order 0, 2, 4, 6, 1, 3, 5, 7 |
| |
| This is done in order to avoid overflow: Since the tap with the largest |
| coefficient could be any of taps 2, 3, 4 or 5, we can't use the summation |
| order ((0 + 1) + (4 + 5)) + ((2 + 3) + (6 + 7)) used in the regular |
| convolve functions. |
| |
| Instead, we use the summation order |
| ((0 + 2) + (4 + 6)) + ((1 + 3) + (5 + 7)). |
| The rearrangement of coefficients in this table is so that we can get the |
| coefficients into the correct order more quickly. |
| */ |
| /* clang-format off */ |
| DECLARE_ALIGNED(8, static const int8_t, |
| filter_8bit_neon[WARPEDPIXEL_PREC_SHIFTS * 3 + 1][8]) = { |
| #if WARPEDPIXEL_PREC_BITS == 6 |
| // [-1, 0) |
| { 0, 127, 0, 0, 0, 1, 0, 0}, { 0, 127, 0, 0, -1, 2, 0, 0}, |
| { 1, 127, -1, 0, -3, 4, 0, 0}, { 1, 126, -2, 0, -4, 6, 1, 0}, |
| { 1, 126, -3, 0, -5, 8, 1, 0}, { 1, 125, -4, 0, -6, 11, 1, 0}, |
| { 1, 124, -4, 0, -7, 13, 1, 0}, { 2, 123, -5, 0, -8, 15, 1, 0}, |
| { 2, 122, -6, 0, -9, 18, 1, 0}, { 2, 121, -6, 0, -10, 20, 1, 0}, |
| { 2, 120, -7, 0, -11, 22, 2, 0}, { 2, 119, -8, 0, -12, 25, 2, 0}, |
| { 3, 117, -8, 0, -13, 27, 2, 0}, { 3, 116, -9, 0, -13, 29, 2, 0}, |
| { 3, 114, -10, 0, -14, 32, 3, 0}, { 3, 113, -10, 0, -15, 35, 2, 0}, |
| { 3, 111, -11, 0, -15, 37, 3, 0}, { 3, 109, -11, 0, -16, 40, 3, 0}, |
| { 3, 108, -12, 0, -16, 42, 3, 0}, { 4, 106, -13, 0, -17, 45, 3, 0}, |
| { 4, 104, -13, 0, -17, 47, 3, 0}, { 4, 102, -14, 0, -17, 50, 3, 0}, |
| { 4, 100, -14, 0, -17, 52, 3, 0}, { 4, 98, -15, 0, -18, 55, 4, 0}, |
| { 4, 96, -15, 0, -18, 58, 3, 0}, { 4, 94, -16, 0, -18, 60, 4, 0}, |
| { 4, 91, -16, 0, -18, 63, 4, 0}, { 4, 89, -16, 0, -18, 65, 4, 0}, |
| { 4, 87, -17, 0, -18, 68, 4, 0}, { 4, 85, -17, 0, -18, 70, 4, 0}, |
| { 4, 82, -17, 0, -18, 73, 4, 0}, { 4, 80, -17, 0, -18, 75, 4, 0}, |
| { 4, 78, -18, 0, -18, 78, 4, 0}, { 4, 75, -18, 0, -17, 80, 4, 0}, |
| { 4, 73, -18, 0, -17, 82, 4, 0}, { 4, 70, -18, 0, -17, 85, 4, 0}, |
| { 4, 68, -18, 0, -17, 87, 4, 0}, { 4, 65, -18, 0, -16, 89, 4, 0}, |
| { 4, 63, -18, 0, -16, 91, 4, 0}, { 4, 60, -18, 0, -16, 94, 4, 0}, |
| { 3, 58, -18, 0, -15, 96, 4, 0}, { 4, 55, -18, 0, -15, 98, 4, 0}, |
| { 3, 52, -17, 0, -14, 100, 4, 0}, { 3, 50, -17, 0, -14, 102, 4, 0}, |
| { 3, 47, -17, 0, -13, 104, 4, 0}, { 3, 45, -17, 0, -13, 106, 4, 0}, |
| { 3, 42, -16, 0, -12, 108, 3, 0}, { 3, 40, -16, 0, -11, 109, 3, 0}, |
| { 3, 37, -15, 0, -11, 111, 3, 0}, { 2, 35, -15, 0, -10, 113, 3, 0}, |
| { 3, 32, -14, 0, -10, 114, 3, 0}, { 2, 29, -13, 0, -9, 116, 3, 0}, |
| { 2, 27, -13, 0, -8, 117, 3, 0}, { 2, 25, -12, 0, -8, 119, 2, 0}, |
| { 2, 22, -11, 0, -7, 120, 2, 0}, { 1, 20, -10, 0, -6, 121, 2, 0}, |
| { 1, 18, -9, 0, -6, 122, 2, 0}, { 1, 15, -8, 0, -5, 123, 2, 0}, |
| { 1, 13, -7, 0, -4, 124, 1, 0}, { 1, 11, -6, 0, -4, 125, 1, 0}, |
| { 1, 8, -5, 0, -3, 126, 1, 0}, { 1, 6, -4, 0, -2, 126, 1, 0}, |
| { 0, 4, -3, 0, -1, 127, 1, 0}, { 0, 2, -1, 0, 0, 127, 0, 0}, |
| // [0, 1) |
| { 0, 0, 1, 0, 0, 127, 0, 0}, { 0, -1, 2, 0, 0, 127, 0, 0}, |
| { 0, -3, 4, 1, 1, 127, -2, 0}, { 0, -5, 6, 1, 1, 127, -2, 0}, |
| { 0, -6, 8, 1, 2, 126, -3, 0}, {-1, -7, 11, 2, 2, 126, -4, -1}, |
| {-1, -8, 13, 2, 3, 125, -5, -1}, {-1, -10, 16, 3, 3, 124, -6, -1}, |
| {-1, -11, 18, 3, 4, 123, -7, -1}, {-1, -12, 20, 3, 4, 122, -7, -1}, |
| {-1, -13, 23, 3, 4, 121, -8, -1}, {-2, -14, 25, 4, 5, 120, -9, -1}, |
| {-1, -15, 27, 4, 5, 119, -10, -1}, {-1, -16, 30, 4, 5, 118, -11, -1}, |
| {-2, -17, 33, 5, 6, 116, -12, -1}, {-2, -17, 35, 5, 6, 114, -12, -1}, |
| {-2, -18, 38, 5, 6, 113, -13, -1}, {-2, -19, 41, 6, 7, 111, -14, -2}, |
| {-2, -19, 43, 6, 7, 110, -15, -2}, {-2, -20, 46, 6, 7, 108, -15, -2}, |
| {-2, -20, 49, 6, 7, 106, -16, -2}, {-2, -21, 51, 7, 7, 104, -16, -2}, |
| {-2, -21, 54, 7, 7, 102, -17, -2}, {-2, -21, 56, 7, 8, 100, -18, -2}, |
| {-2, -22, 59, 7, 8, 98, -18, -2}, {-2, -22, 62, 7, 8, 96, -19, -2}, |
| {-2, -22, 64, 7, 8, 94, -19, -2}, {-2, -22, 67, 8, 8, 91, -20, -2}, |
| {-2, -22, 69, 8, 8, 89, -20, -2}, {-2, -22, 72, 8, 8, 87, -21, -2}, |
| {-2, -21, 74, 8, 8, 84, -21, -2}, {-2, -22, 77, 8, 8, 82, -21, -2}, |
| {-2, -21, 79, 8, 8, 79, -21, -2}, {-2, -21, 82, 8, 8, 77, -22, -2}, |
| {-2, -21, 84, 8, 8, 74, -21, -2}, {-2, -21, 87, 8, 8, 72, -22, -2}, |
| {-2, -20, 89, 8, 8, 69, -22, -2}, {-2, -20, 91, 8, 8, 67, -22, -2}, |
| {-2, -19, 94, 8, 7, 64, -22, -2}, {-2, -19, 96, 8, 7, 62, -22, -2}, |
| {-2, -18, 98, 8, 7, 59, -22, -2}, {-2, -18, 100, 8, 7, 56, -21, -2}, |
| {-2, -17, 102, 7, 7, 54, -21, -2}, {-2, -16, 104, 7, 7, 51, -21, -2}, |
| {-2, -16, 106, 7, 6, 49, -20, -2}, {-2, -15, 108, 7, 6, 46, -20, -2}, |
| {-2, -15, 110, 7, 6, 43, -19, -2}, {-2, -14, 111, 7, 6, 41, -19, -2}, |
| {-1, -13, 113, 6, 5, 38, -18, -2}, {-1, -12, 114, 6, 5, 35, -17, -2}, |
| {-1, -12, 116, 6, 5, 33, -17, -2}, {-1, -11, 118, 5, 4, 30, -16, -1}, |
| {-1, -10, 119, 5, 4, 27, -15, -1}, {-1, -9, 120, 5, 4, 25, -14, -2}, |
| {-1, -8, 121, 4, 3, 23, -13, -1}, {-1, -7, 122, 4, 3, 20, -12, -1}, |
| {-1, -7, 123, 4, 3, 18, -11, -1}, {-1, -6, 124, 3, 3, 16, -10, -1}, |
| {-1, -5, 125, 3, 2, 13, -8, -1}, {-1, -4, 126, 2, 2, 11, -7, -1}, |
| { 0, -3, 126, 2, 1, 8, -6, 0}, { 0, -2, 127, 1, 1, 6, -5, 0}, |
| { 0, -2, 127, 1, 1, 4, -3, 0}, { 0, 0, 127, 0, 0, 2, -1, 0}, |
| // [1, 2) |
| { 0, 0, 127, 0, 0, 1, 0, 0}, { 0, 0, 127, 0, 0, -1, 2, 0}, |
| { 0, 1, 127, -1, 0, -3, 4, 0}, { 0, 1, 126, -2, 0, -4, 6, 1}, |
| { 0, 1, 126, -3, 0, -5, 8, 1}, { 0, 1, 125, -4, 0, -6, 11, 1}, |
| { 0, 1, 124, -4, 0, -7, 13, 1}, { 0, 2, 123, -5, 0, -8, 15, 1}, |
| { 0, 2, 122, -6, 0, -9, 18, 1}, { 0, 2, 121, -6, 0, -10, 20, 1}, |
| { 0, 2, 120, -7, 0, -11, 22, 2}, { 0, 2, 119, -8, 0, -12, 25, 2}, |
| { 0, 3, 117, -8, 0, -13, 27, 2}, { 0, 3, 116, -9, 0, -13, 29, 2}, |
| { 0, 3, 114, -10, 0, -14, 32, 3}, { 0, 3, 113, -10, 0, -15, 35, 2}, |
| { 0, 3, 111, -11, 0, -15, 37, 3}, { 0, 3, 109, -11, 0, -16, 40, 3}, |
| { 0, 3, 108, -12, 0, -16, 42, 3}, { 0, 4, 106, -13, 0, -17, 45, 3}, |
| { 0, 4, 104, -13, 0, -17, 47, 3}, { 0, 4, 102, -14, 0, -17, 50, 3}, |
| { 0, 4, 100, -14, 0, -17, 52, 3}, { 0, 4, 98, -15, 0, -18, 55, 4}, |
| { 0, 4, 96, -15, 0, -18, 58, 3}, { 0, 4, 94, -16, 0, -18, 60, 4}, |
| { 0, 4, 91, -16, 0, -18, 63, 4}, { 0, 4, 89, -16, 0, -18, 65, 4}, |
| { 0, 4, 87, -17, 0, -18, 68, 4}, { 0, 4, 85, -17, 0, -18, 70, 4}, |
| { 0, 4, 82, -17, 0, -18, 73, 4}, { 0, 4, 80, -17, 0, -18, 75, 4}, |
| { 0, 4, 78, -18, 0, -18, 78, 4}, { 0, 4, 75, -18, 0, -17, 80, 4}, |
| { 0, 4, 73, -18, 0, -17, 82, 4}, { 0, 4, 70, -18, 0, -17, 85, 4}, |
| { 0, 4, 68, -18, 0, -17, 87, 4}, { 0, 4, 65, -18, 0, -16, 89, 4}, |
| { 0, 4, 63, -18, 0, -16, 91, 4}, { 0, 4, 60, -18, 0, -16, 94, 4}, |
| { 0, 3, 58, -18, 0, -15, 96, 4}, { 0, 4, 55, -18, 0, -15, 98, 4}, |
| { 0, 3, 52, -17, 0, -14, 100, 4}, { 0, 3, 50, -17, 0, -14, 102, 4}, |
| { 0, 3, 47, -17, 0, -13, 104, 4}, { 0, 3, 45, -17, 0, -13, 106, 4}, |
| { 0, 3, 42, -16, 0, -12, 108, 3}, { 0, 3, 40, -16, 0, -11, 109, 3}, |
| { 0, 3, 37, -15, 0, -11, 111, 3}, { 0, 2, 35, -15, 0, -10, 113, 3}, |
| { 0, 3, 32, -14, 0, -10, 114, 3}, { 0, 2, 29, -13, 0, -9, 116, 3}, |
| { 0, 2, 27, -13, 0, -8, 117, 3}, { 0, 2, 25, -12, 0, -8, 119, 2}, |
| { 0, 2, 22, -11, 0, -7, 120, 2}, { 0, 1, 20, -10, 0, -6, 121, 2}, |
| { 0, 1, 18, -9, 0, -6, 122, 2}, { 0, 1, 15, -8, 0, -5, 123, 2}, |
| { 0, 1, 13, -7, 0, -4, 124, 1}, { 0, 1, 11, -6, 0, -4, 125, 1}, |
| { 0, 1, 8, -5, 0, -3, 126, 1}, { 0, 1, 6, -4, 0, -2, 126, 1}, |
| { 0, 0, 4, -3, 0, -1, 127, 1}, { 0, 0, 2, -1, 0, 0, 127, 0}, |
| // dummy (replicate row index 191) |
| { 0, 0, 2, -1, 0, 0, 127, 0}, |
| |
| #else |
| // [-1, 0) |
| { 0, 127, 0, 0, 0, 1, 0, 0}, { 1, 127, -1, 0, -3, 4, 0, 0}, |
| { 1, 126, -3, 0, -5, 8, 1, 0}, { 1, 124, -4, 0, -7, 13, 1, 0}, |
| { 2, 122, -6, 0, -9, 18, 1, 0}, { 2, 120, -7, 0, -11, 22, 2, 0}, |
| { 3, 117, -8, 0, -13, 27, 2, 0}, { 3, 114, -10, 0, -14, 32, 3, 0}, |
| { 3, 111, -11, 0, -15, 37, 3, 0}, { 3, 108, -12, 0, -16, 42, 3, 0}, |
| { 4, 104, -13, 0, -17, 47, 3, 0}, { 4, 100, -14, 0, -17, 52, 3, 0}, |
| { 4, 96, -15, 0, -18, 58, 3, 0}, { 4, 91, -16, 0, -18, 63, 4, 0}, |
| { 4, 87, -17, 0, -18, 68, 4, 0}, { 4, 82, -17, 0, -18, 73, 4, 0}, |
| { 4, 78, -18, 0, -18, 78, 4, 0}, { 4, 73, -18, 0, -17, 82, 4, 0}, |
| { 4, 68, -18, 0, -17, 87, 4, 0}, { 4, 63, -18, 0, -16, 91, 4, 0}, |
| { 3, 58, -18, 0, -15, 96, 4, 0}, { 3, 52, -17, 0, -14, 100, 4, 0}, |
| { 3, 47, -17, 0, -13, 104, 4, 0}, { 3, 42, -16, 0, -12, 108, 3, 0}, |
| { 3, 37, -15, 0, -11, 111, 3, 0}, { 3, 32, -14, 0, -10, 114, 3, 0}, |
| { 2, 27, -13, 0, -8, 117, 3, 0}, { 2, 22, -11, 0, -7, 120, 2, 0}, |
| { 1, 18, -9, 0, -6, 122, 2, 0}, { 1, 13, -7, 0, -4, 124, 1, 0}, |
| { 1, 8, -5, 0, -3, 126, 1, 0}, { 0, 4, -3, 0, -1, 127, 1, 0}, |
| // [0, 1) |
| { 0, 0, 1, 0, 0, 127, 0, 0}, { 0, -3, 4, 1, 1, 127, -2, 0}, |
| { 0, -6, 8, 1, 2, 126, -3, 0}, {-1, -8, 13, 2, 3, 125, -5, -1}, |
| {-1, -11, 18, 3, 4, 123, -7, -1}, {-1, -13, 23, 3, 4, 121, -8, -1}, |
| {-1, -15, 27, 4, 5, 119, -10, -1}, {-2, -17, 33, 5, 6, 116, -12, -1}, |
| {-2, -18, 38, 5, 6, 113, -13, -1}, {-2, -19, 43, 6, 7, 110, -15, -2}, |
| {-2, -20, 49, 6, 7, 106, -16, -2}, {-2, -21, 54, 7, 7, 102, -17, -2}, |
| {-2, -22, 59, 7, 8, 98, -18, -2}, {-2, -22, 64, 7, 8, 94, -19, -2}, |
| {-2, -22, 69, 8, 8, 89, -20, -2}, {-2, -21, 74, 8, 8, 84, -21, -2}, |
| {-2, -21, 79, 8, 8, 79, -21, -2}, {-2, -21, 84, 8, 8, 74, -21, -2}, |
| {-2, -20, 89, 8, 8, 69, -22, -2}, {-2, -19, 94, 8, 7, 64, -22, -2}, |
| {-2, -18, 98, 8, 7, 59, -22, -2}, {-2, -17, 102, 7, 7, 54, -21, -2}, |
| {-2, -16, 106, 7, 6, 49, -20, -2}, {-2, -15, 110, 7, 6, 43, -19, -2}, |
| {-1, -13, 113, 6, 5, 38, -18, -2}, {-1, -12, 116, 6, 5, 33, -17, -2}, |
| {-1, -10, 119, 5, 4, 27, -15, -1}, {-1, -8, 121, 4, 3, 23, -13, -1}, |
| {-1, -7, 123, 4, 3, 18, -11, -1}, {-1, -5, 125, 3, 2, 13, -8, -1}, |
| { 0, -3, 126, 2, 1, 8, -6, 0}, { 0, -2, 127, 1, 1, 4, -3, 0}, |
| // [1, 2) |
| { 0, 0, 127, 0, 0, 1, 0, 0}, { 0, 1, 127, -1, 0, -3, 4, 0}, |
| { 0, 1, 126, -3, 0, -5, 8, 1}, { 0, 1, 124, -4, 0, -7, 13, 1}, |
| { 0, 2, 122, -6, 0, -9, 18, 1}, { 0, 2, 120, -7, 0, -11, 22, 2}, |
| { 0, 3, 117, -8, 0, -13, 27, 2}, { 0, 3, 114, -10, 0, -14, 32, 3}, |
| { 0, 3, 111, -11, 0, -15, 37, 3}, { 0, 3, 108, -12, 0, -16, 42, 3}, |
| { 0, 4, 104, -13, 0, -17, 47, 3}, { 0, 4, 100, -14, 0, -17, 52, 3}, |
| { 0, 4, 96, -15, 0, -18, 58, 3}, { 0, 4, 91, -16, 0, -18, 63, 4}, |
| { 0, 4, 87, -17, 0, -18, 68, 4}, { 0, 4, 82, -17, 0, -18, 73, 4}, |
| { 0, 4, 78, -18, 0, -18, 78, 4}, { 0, 4, 73, -18, 0, -17, 82, 4}, |
| { 0, 4, 68, -18, 0, -17, 87, 4}, { 0, 4, 63, -18, 0, -16, 91, 4}, |
| { 0, 3, 58, -18, 0, -15, 96, 4}, { 0, 3, 52, -17, 0, -14, 100, 4}, |
| { 0, 3, 47, -17, 0, -13, 104, 4}, { 0, 3, 42, -16, 0, -12, 108, 3}, |
| { 0, 3, 37, -15, 0, -11, 111, 3}, { 0, 3, 32, -14, 0, -10, 114, 3}, |
| { 0, 2, 27, -13, 0, -8, 117, 3}, { 0, 2, 22, -11, 0, -7, 120, 2}, |
| { 0, 1, 18, -9, 0, -6, 122, 2}, { 0, 1, 13, -7, 0, -4, 124, 1}, |
| { 0, 1, 8, -5, 0, -3, 126, 1}, { 0, 0, 4, -3, 0, -1, 127, 1}, |
| // dummy (replicate row index 95) |
| { 0, 0, 4, -3, 0, -1, 127, 1}, |
| #endif // WARPEDPIXEL_PREC_BITS == 6 |
| }; |
| /* clang-format on */ |
| |
| static INLINE void convolve(int32x2x2_t x0, int32x2x2_t x1, uint8x8_t src_0, |
| uint8x8_t src_1, int16x4_t *res) { |
| int16x8_t coeff_0, coeff_1; |
| int16x8_t pix_0, pix_1; |
| |
| coeff_0 = vcombine_s16(vreinterpret_s16_s32(x0.val[0]), |
| vreinterpret_s16_s32(x1.val[0])); |
| coeff_1 = vcombine_s16(vreinterpret_s16_s32(x0.val[1]), |
| vreinterpret_s16_s32(x1.val[1])); |
| |
| pix_0 = vreinterpretq_s16_u16(vmovl_u8(src_0)); |
| pix_0 = vmulq_s16(coeff_0, pix_0); |
| |
| pix_1 = vreinterpretq_s16_u16(vmovl_u8(src_1)); |
| pix_0 = vmlaq_s16(pix_0, coeff_1, pix_1); |
| |
| *res = vpadd_s16(vget_low_s16(pix_0), vget_high_s16(pix_0)); |
| } |
| |
| static INLINE void horizontal_filter_neon(uint8x16_t src_1, uint8x16_t src_2, |
| uint8x16_t src_3, uint8x16_t src_4, |
| int16x8_t *tmp_dst, int sx, int alpha, |
| int k, const int offset_bits_horiz, |
| const int reduce_bits_horiz) { |
| const uint8x16_t mask = { 255, 0, 255, 0, 255, 0, 255, 0, |
| 255, 0, 255, 0, 255, 0, 255, 0 }; |
| const int32x4_t add_const = vdupq_n_s32((int32_t)(1 << offset_bits_horiz)); |
| const int16x8_t shift = vdupq_n_s16(-(int16_t)reduce_bits_horiz); |
| |
| int16x8_t f0, f1, f2, f3, f4, f5, f6, f7; |
| int32x2x2_t b0, b1; |
| uint8x8_t src_1_low, src_2_low, src_3_low, src_4_low, src_5_low, src_6_low; |
| int32x4_t tmp_res_low, tmp_res_high; |
| uint16x8_t res; |
| int16x4_t res_0246_even, res_0246_odd, res_1357_even, res_1357_odd; |
| |
| uint8x16_t tmp_0 = vandq_u8(src_1, mask); |
| uint8x16_t tmp_1 = vandq_u8(src_2, mask); |
| uint8x16_t tmp_2 = vandq_u8(src_3, mask); |
| uint8x16_t tmp_3 = vandq_u8(src_4, mask); |
| |
| tmp_2 = vextq_u8(tmp_0, tmp_0, 1); |
| tmp_3 = vextq_u8(tmp_1, tmp_1, 1); |
| |
| src_1 = vaddq_u8(tmp_0, tmp_2); |
| src_2 = vaddq_u8(tmp_1, tmp_3); |
| |
| src_1_low = vget_low_u8(src_1); |
| src_2_low = vget_low_u8(src_2); |
| src_3_low = vget_low_u8(vextq_u8(src_1, src_1, 4)); |
| src_4_low = vget_low_u8(vextq_u8(src_2, src_2, 4)); |
| src_5_low = vget_low_u8(vextq_u8(src_1, src_1, 2)); |
| src_6_low = vget_low_u8(vextq_u8(src_1, src_1, 6)); |
| |
| // Loading the 8 filter taps |
| f0 = vmovl_s8( |
| vld1_s8(filter_8bit_neon[(sx + 0 * alpha) >> WARPEDDIFF_PREC_BITS])); |
| f1 = vmovl_s8( |
| vld1_s8(filter_8bit_neon[(sx + 1 * alpha) >> WARPEDDIFF_PREC_BITS])); |
| f2 = vmovl_s8( |
| vld1_s8(filter_8bit_neon[(sx + 2 * alpha) >> WARPEDDIFF_PREC_BITS])); |
| f3 = vmovl_s8( |
| vld1_s8(filter_8bit_neon[(sx + 3 * alpha) >> WARPEDDIFF_PREC_BITS])); |
| f4 = vmovl_s8( |
| vld1_s8(filter_8bit_neon[(sx + 4 * alpha) >> WARPEDDIFF_PREC_BITS])); |
| f5 = vmovl_s8( |
| vld1_s8(filter_8bit_neon[(sx + 5 * alpha) >> WARPEDDIFF_PREC_BITS])); |
| f6 = vmovl_s8( |
| vld1_s8(filter_8bit_neon[(sx + 6 * alpha) >> WARPEDDIFF_PREC_BITS])); |
| f7 = vmovl_s8( |
| vld1_s8(filter_8bit_neon[(sx + 7 * alpha) >> WARPEDDIFF_PREC_BITS])); |
| |
| b0 = vtrn_s32(vreinterpret_s32_s16(vget_low_s16(f0)), |
| vreinterpret_s32_s16(vget_low_s16(f2))); |
| b1 = vtrn_s32(vreinterpret_s32_s16(vget_low_s16(f4)), |
| vreinterpret_s32_s16(vget_low_s16(f6))); |
| convolve(b0, b1, src_1_low, src_3_low, &res_0246_even); |
| |
| b0 = vtrn_s32(vreinterpret_s32_s16(vget_low_s16(f1)), |
| vreinterpret_s32_s16(vget_low_s16(f3))); |
| b1 = vtrn_s32(vreinterpret_s32_s16(vget_low_s16(f5)), |
| vreinterpret_s32_s16(vget_low_s16(f7))); |
| convolve(b0, b1, src_2_low, src_4_low, &res_0246_odd); |
| |
| b0 = vtrn_s32(vreinterpret_s32_s16(vget_high_s16(f0)), |
| vreinterpret_s32_s16(vget_high_s16(f2))); |
| b1 = vtrn_s32(vreinterpret_s32_s16(vget_high_s16(f4)), |
| vreinterpret_s32_s16(vget_high_s16(f6))); |
| convolve(b0, b1, src_2_low, src_4_low, &res_1357_even); |
| |
| b0 = vtrn_s32(vreinterpret_s32_s16(vget_high_s16(f1)), |
| vreinterpret_s32_s16(vget_high_s16(f3))); |
| b1 = vtrn_s32(vreinterpret_s32_s16(vget_high_s16(f5)), |
| vreinterpret_s32_s16(vget_high_s16(f7))); |
| convolve(b0, b1, src_5_low, src_6_low, &res_1357_odd); |
| |
| tmp_res_low = vaddl_s16(res_0246_even, res_1357_even); |
| tmp_res_high = vaddl_s16(res_0246_odd, res_1357_odd); |
| |
| tmp_res_low = vaddq_s32(tmp_res_low, add_const); |
| tmp_res_high = vaddq_s32(tmp_res_high, add_const); |
| |
| res = vcombine_u16(vqmovun_s32(tmp_res_low), vqmovun_s32(tmp_res_high)); |
| res = vqrshlq_u16(res, shift); |
| |
| tmp_dst[k + 7] = vreinterpretq_s16_u16(res); |
| } |
| |
| static INLINE void vertical_filter_neon(const int16x8_t *src, |
| int32x4_t *res_low, int32x4_t *res_high, |
| int sy, int gamma) { |
| int16x4_t src_0, src_1, fltr_0, fltr_1; |
| int32x4_t res_0, res_1; |
| int32x2_t res_0_im, res_1_im; |
| int32x4_t res_even, res_odd, im_res_0, im_res_1; |
| |
| int16x8_t f0, f1, f2, f3, f4, f5, f6, f7; |
| int16x8x2_t b0, b1, b2, b3; |
| int32x4x2_t c0, c1, c2, c3; |
| int32x4x2_t d0, d1, d2, d3; |
| |
| b0 = vtrnq_s16(src[0], src[1]); |
| b1 = vtrnq_s16(src[2], src[3]); |
| b2 = vtrnq_s16(src[4], src[5]); |
| b3 = vtrnq_s16(src[6], src[7]); |
| |
| c0 = vtrnq_s32(vreinterpretq_s32_s16(b0.val[0]), |
| vreinterpretq_s32_s16(b0.val[1])); |
| c1 = vtrnq_s32(vreinterpretq_s32_s16(b1.val[0]), |
| vreinterpretq_s32_s16(b1.val[1])); |
| c2 = vtrnq_s32(vreinterpretq_s32_s16(b2.val[0]), |
| vreinterpretq_s32_s16(b2.val[1])); |
| c3 = vtrnq_s32(vreinterpretq_s32_s16(b3.val[0]), |
| vreinterpretq_s32_s16(b3.val[1])); |
| |
| f0 = vld1q_s16( |
| (int16_t *)(warped_filter + ((sy + 0 * gamma) >> WARPEDDIFF_PREC_BITS))); |
| f1 = vld1q_s16( |
| (int16_t *)(warped_filter + ((sy + 1 * gamma) >> WARPEDDIFF_PREC_BITS))); |
| f2 = vld1q_s16( |
| (int16_t *)(warped_filter + ((sy + 2 * gamma) >> WARPEDDIFF_PREC_BITS))); |
| f3 = vld1q_s16( |
| (int16_t *)(warped_filter + ((sy + 3 * gamma) >> WARPEDDIFF_PREC_BITS))); |
| f4 = vld1q_s16( |
| (int16_t *)(warped_filter + ((sy + 4 * gamma) >> WARPEDDIFF_PREC_BITS))); |
| f5 = vld1q_s16( |
| (int16_t *)(warped_filter + ((sy + 5 * gamma) >> WARPEDDIFF_PREC_BITS))); |
| f6 = vld1q_s16( |
| (int16_t *)(warped_filter + ((sy + 6 * gamma) >> WARPEDDIFF_PREC_BITS))); |
| f7 = vld1q_s16( |
| (int16_t *)(warped_filter + ((sy + 7 * gamma) >> WARPEDDIFF_PREC_BITS))); |
| |
| d0 = vtrnq_s32(vreinterpretq_s32_s16(f0), vreinterpretq_s32_s16(f2)); |
| d1 = vtrnq_s32(vreinterpretq_s32_s16(f4), vreinterpretq_s32_s16(f6)); |
| d2 = vtrnq_s32(vreinterpretq_s32_s16(f1), vreinterpretq_s32_s16(f3)); |
| d3 = vtrnq_s32(vreinterpretq_s32_s16(f5), vreinterpretq_s32_s16(f7)); |
| |
| // row:0,1 even_col:0,2 |
| src_0 = vget_low_s16(vreinterpretq_s16_s32(c0.val[0])); |
| fltr_0 = vget_low_s16(vreinterpretq_s16_s32(d0.val[0])); |
| res_0 = vmull_s16(src_0, fltr_0); |
| |
| // row:0,1,2,3 even_col:0,2 |
| src_0 = vget_low_s16(vreinterpretq_s16_s32(c1.val[0])); |
| fltr_0 = vget_low_s16(vreinterpretq_s16_s32(d0.val[1])); |
| res_0 = vmlal_s16(res_0, src_0, fltr_0); |
| res_0_im = vpadd_s32(vget_low_s32(res_0), vget_high_s32(res_0)); |
| |
| // row:0,1 even_col:4,6 |
| src_1 = vget_low_s16(vreinterpretq_s16_s32(c0.val[1])); |
| fltr_1 = vget_low_s16(vreinterpretq_s16_s32(d1.val[0])); |
| res_1 = vmull_s16(src_1, fltr_1); |
| |
| // row:0,1,2,3 even_col:4,6 |
| src_1 = vget_low_s16(vreinterpretq_s16_s32(c1.val[1])); |
| fltr_1 = vget_low_s16(vreinterpretq_s16_s32(d1.val[1])); |
| res_1 = vmlal_s16(res_1, src_1, fltr_1); |
| res_1_im = vpadd_s32(vget_low_s32(res_1), vget_high_s32(res_1)); |
| |
| // row:0,1,2,3 even_col:0,2,4,6 |
| im_res_0 = vcombine_s32(res_0_im, res_1_im); |
| |
| // row:4,5 even_col:0,2 |
| src_0 = vget_low_s16(vreinterpretq_s16_s32(c2.val[0])); |
| fltr_0 = vget_high_s16(vreinterpretq_s16_s32(d0.val[0])); |
| res_0 = vmull_s16(src_0, fltr_0); |
| |
| // row:4,5,6,7 even_col:0,2 |
| src_0 = vget_low_s16(vreinterpretq_s16_s32(c3.val[0])); |
| fltr_0 = vget_high_s16(vreinterpretq_s16_s32(d0.val[1])); |
| res_0 = vmlal_s16(res_0, src_0, fltr_0); |
| res_0_im = vpadd_s32(vget_low_s32(res_0), vget_high_s32(res_0)); |
| |
| // row:4,5 even_col:4,6 |
| src_1 = vget_low_s16(vreinterpretq_s16_s32(c2.val[1])); |
| fltr_1 = vget_high_s16(vreinterpretq_s16_s32(d1.val[0])); |
| res_1 = vmull_s16(src_1, fltr_1); |
| |
| // row:4,5,6,7 even_col:4,6 |
| src_1 = vget_low_s16(vreinterpretq_s16_s32(c3.val[1])); |
| fltr_1 = vget_high_s16(vreinterpretq_s16_s32(d1.val[1])); |
| res_1 = vmlal_s16(res_1, src_1, fltr_1); |
| res_1_im = vpadd_s32(vget_low_s32(res_1), vget_high_s32(res_1)); |
| |
| // row:4,5,6,7 even_col:0,2,4,6 |
| im_res_1 = vcombine_s32(res_0_im, res_1_im); |
| |
| // row:0-7 even_col:0,2,4,6 |
| res_even = vaddq_s32(im_res_0, im_res_1); |
| |
| // row:0,1 odd_col:1,3 |
| src_0 = vget_high_s16(vreinterpretq_s16_s32(c0.val[0])); |
| fltr_0 = vget_low_s16(vreinterpretq_s16_s32(d2.val[0])); |
| res_0 = vmull_s16(src_0, fltr_0); |
| |
| // row:0,1,2,3 odd_col:1,3 |
| src_0 = vget_high_s16(vreinterpretq_s16_s32(c1.val[0])); |
| fltr_0 = vget_low_s16(vreinterpretq_s16_s32(d2.val[1])); |
| res_0 = vmlal_s16(res_0, src_0, fltr_0); |
| res_0_im = vpadd_s32(vget_low_s32(res_0), vget_high_s32(res_0)); |
| |
| // row:0,1 odd_col:5,7 |
| src_1 = vget_high_s16(vreinterpretq_s16_s32(c0.val[1])); |
| fltr_1 = vget_low_s16(vreinterpretq_s16_s32(d3.val[0])); |
| res_1 = vmull_s16(src_1, fltr_1); |
| |
| // row:0,1,2,3 odd_col:5,7 |
| src_1 = vget_high_s16(vreinterpretq_s16_s32(c1.val[1])); |
| fltr_1 = vget_low_s16(vreinterpretq_s16_s32(d3.val[1])); |
| res_1 = vmlal_s16(res_1, src_1, fltr_1); |
| res_1_im = vpadd_s32(vget_low_s32(res_1), vget_high_s32(res_1)); |
| |
| // row:0,1,2,3 odd_col:1,3,5,7 |
| im_res_0 = vcombine_s32(res_0_im, res_1_im); |
| |
| // row:4,5 odd_col:1,3 |
| src_0 = vget_high_s16(vreinterpretq_s16_s32(c2.val[0])); |
| fltr_0 = vget_high_s16(vreinterpretq_s16_s32(d2.val[0])); |
| res_0 = vmull_s16(src_0, fltr_0); |
| |
| // row:4,5,6,7 odd_col:1,3 |
| src_0 = vget_high_s16(vreinterpretq_s16_s32(c3.val[0])); |
| fltr_0 = vget_high_s16(vreinterpretq_s16_s32(d2.val[1])); |
| res_0 = vmlal_s16(res_0, src_0, fltr_0); |
| res_0_im = vpadd_s32(vget_low_s32(res_0), vget_high_s32(res_0)); |
| |
| // row:4,5 odd_col:5,7 |
| src_1 = vget_high_s16(vreinterpretq_s16_s32(c2.val[1])); |
| fltr_1 = vget_high_s16(vreinterpretq_s16_s32(d3.val[0])); |
| res_1 = vmull_s16(src_1, fltr_1); |
| |
| // row:4,5,6,7 odd_col:5,7 |
| src_1 = vget_high_s16(vreinterpretq_s16_s32(c3.val[1])); |
| fltr_1 = vget_high_s16(vreinterpretq_s16_s32(d3.val[1])); |
| res_1 = vmlal_s16(res_1, src_1, fltr_1); |
| res_1_im = vpadd_s32(vget_low_s32(res_1), vget_high_s32(res_1)); |
| |
| // row:4,5,6,7 odd_col:1,3,5,7 |
| im_res_1 = vcombine_s32(res_0_im, res_1_im); |
| |
| // row:0-7 odd_col:1,3,5,7 |
| res_odd = vaddq_s32(im_res_0, im_res_1); |
| |
| // reordering as 0 1 2 3 | 4 5 6 7 |
| c0 = vtrnq_s32(res_even, res_odd); |
| |
| // Final store |
| *res_low = vcombine_s32(vget_low_s32(c0.val[0]), vget_low_s32(c0.val[1])); |
| *res_high = vcombine_s32(vget_high_s32(c0.val[0]), vget_high_s32(c0.val[1])); |
| } |
| |
| void av1_warp_affine_neon(const int32_t *mat, const uint8_t *ref, int width, |
| int height, int stride, uint8_t *pred, int p_col, |
| int p_row, int p_width, int p_height, int p_stride, |
| int subsampling_x, int subsampling_y, |
| ConvolveParams *conv_params, int16_t alpha, |
| int16_t beta, int16_t gamma, int16_t delta) { |
| int16x8_t tmp[15]; |
| const int bd = 8; |
| const int w0 = conv_params->fwd_offset; |
| const int w1 = conv_params->bck_offset; |
| const int32x4_t fwd = vdupq_n_s32((int32_t)w0); |
| const int32x4_t bwd = vdupq_n_s32((int32_t)w1); |
| const int16x8_t sub_constant = vdupq_n_s16((1 << (bd - 1)) + (1 << bd)); |
| |
| int limit = 0; |
| uint8x16_t vec_dup, mask_val; |
| int32x4_t res_lo, res_hi; |
| int16x8_t result_final; |
| uint8x16_t src_1, src_2, src_3, src_4; |
| uint8x16_t indx_vec = { |
| 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15 |
| }; |
| uint8x16_t cmp_vec; |
| |
| const int reduce_bits_horiz = conv_params->round_0; |
| const int reduce_bits_vert = conv_params->is_compound |
| ? conv_params->round_1 |
| : 2 * FILTER_BITS - reduce_bits_horiz; |
| const int32x4_t shift_vert = vdupq_n_s32(-(int32_t)reduce_bits_vert); |
| const int offset_bits_horiz = bd + FILTER_BITS - 1; |
| |
| assert(IMPLIES(conv_params->is_compound, conv_params->dst != NULL)); |
| |
| const int offset_bits_vert = bd + 2 * FILTER_BITS - reduce_bits_horiz; |
| int32x4_t add_const_vert = vdupq_n_s32((int32_t)(1 << offset_bits_vert)); |
| const int round_bits = |
| 2 * FILTER_BITS - conv_params->round_0 - conv_params->round_1; |
| const int16x4_t round_bits_vec = vdup_n_s16(-(int16_t)round_bits); |
| const int offset_bits = bd + 2 * FILTER_BITS - conv_params->round_0; |
| const int16x4_t res_sub_const = |
| vdup_n_s16(-((1 << (offset_bits - conv_params->round_1)) + |
| (1 << (offset_bits - conv_params->round_1 - 1)))); |
| int k; |
| |
| assert(IMPLIES(conv_params->do_average, conv_params->is_compound)); |
| |
| for (int i = 0; i < p_height; i += 8) { |
| for (int j = 0; j < p_width; j += 8) { |
| const int32_t src_x = (p_col + j + 4) << subsampling_x; |
| const int32_t src_y = (p_row + i + 4) << subsampling_y; |
| const int32_t dst_x = mat[2] * src_x + mat[3] * src_y + mat[0]; |
| const int32_t dst_y = mat[4] * src_x + mat[5] * src_y + mat[1]; |
| const int32_t x4 = dst_x >> subsampling_x; |
| const int32_t y4 = dst_y >> subsampling_y; |
| |
| int32_t ix4 = x4 >> WARPEDMODEL_PREC_BITS; |
| int32_t sx4 = x4 & ((1 << WARPEDMODEL_PREC_BITS) - 1); |
| int32_t iy4 = y4 >> WARPEDMODEL_PREC_BITS; |
| int32_t sy4 = y4 & ((1 << WARPEDMODEL_PREC_BITS) - 1); |
| |
| 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 |
| 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; |
| int16_t dup_val = |
| (1 << (bd + FILTER_BITS - reduce_bits_horiz - 1)) + |
| ref[iy * stride] * (1 << (FILTER_BITS - reduce_bits_horiz)); |
| |
| tmp[k + 7] = vdupq_n_s16(dup_val); |
| } |
| } 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; |
| int16_t dup_val = (1 << (bd + FILTER_BITS - reduce_bits_horiz - 1)) + |
| ref[iy * stride + (width - 1)] * |
| (1 << (FILTER_BITS - reduce_bits_horiz)); |
| tmp[k + 7] = vdupq_n_s16(dup_val); |
| } |
| } else if (((ix4 - 7) < 0) || ((ix4 + 9) > width)) { |
| const int out_of_boundary_left = -(ix4 - 6); |
| const int out_of_boundary_right = (ix4 + 8) - width; |
| |
| 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); |
| |
| const uint8_t *src = ref + iy * stride + ix4 - 7; |
| src_1 = vld1q_u8(src); |
| |
| if (out_of_boundary_left >= 0) { |
| limit = out_of_boundary_left + 1; |
| cmp_vec = vdupq_n_u8(out_of_boundary_left); |
| vec_dup = vdupq_n_u8(*(src + limit)); |
| mask_val = vcleq_u8(indx_vec, cmp_vec); |
| src_1 = vbslq_u8(mask_val, vec_dup, src_1); |
| } |
| if (out_of_boundary_right >= 0) { |
| limit = 15 - (out_of_boundary_right + 1); |
| cmp_vec = vdupq_n_u8(15 - out_of_boundary_right); |
| vec_dup = vdupq_n_u8(*(src + limit)); |
| mask_val = vcgeq_u8(indx_vec, cmp_vec); |
| src_1 = vbslq_u8(mask_val, vec_dup, src_1); |
| } |
| src_2 = vextq_u8(src_1, src_1, 1); |
| src_3 = vextq_u8(src_2, src_2, 1); |
| src_4 = vextq_u8(src_3, src_3, 1); |
| |
| horizontal_filter_neon(src_1, src_2, src_3, src_4, tmp, sx, alpha, k, |
| offset_bits_horiz, reduce_bits_horiz); |
| } |
| } 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); |
| |
| const uint8_t *src = ref + iy * stride + ix4 - 7; |
| src_1 = vld1q_u8(src); |
| src_2 = vextq_u8(src_1, src_1, 1); |
| src_3 = vextq_u8(src_2, src_2, 1); |
| src_4 = vextq_u8(src_3, src_3, 1); |
| |
| horizontal_filter_neon(src_1, src_2, src_3, src_4, tmp, sx, alpha, k, |
| offset_bits_horiz, reduce_bits_horiz); |
| } |
| } |
| |
| // vertical |
| for (k = -4; k < AOMMIN(4, p_height - i - 4); ++k) { |
| int sy = sy4 + delta * (k + 4); |
| |
| const int16x8_t *v_src = tmp + (k + 4); |
| |
| vertical_filter_neon(v_src, &res_lo, &res_hi, sy, gamma); |
| |
| res_lo = vaddq_s32(res_lo, add_const_vert); |
| res_hi = vaddq_s32(res_hi, add_const_vert); |
| |
| if (conv_params->is_compound) { |
| uint16_t *const p = |
| (uint16_t *)&conv_params |
| ->dst[(i + k + 4) * conv_params->dst_stride + j]; |
| |
| res_lo = vrshlq_s32(res_lo, shift_vert); |
| if (conv_params->do_average) { |
| uint8_t *const dst8 = &pred[(i + k + 4) * p_stride + j]; |
| uint16x4_t tmp16_lo = vld1_u16(p); |
| int32x4_t tmp32_lo = vreinterpretq_s32_u32(vmovl_u16(tmp16_lo)); |
| int16x4_t tmp16_low; |
| if (conv_params->use_jnt_comp_avg) { |
| res_lo = vmulq_s32(res_lo, bwd); |
| tmp32_lo = vmulq_s32(tmp32_lo, fwd); |
| tmp32_lo = vaddq_s32(tmp32_lo, res_lo); |
| tmp16_low = vshrn_n_s32(tmp32_lo, DIST_PRECISION_BITS); |
| } else { |
| tmp32_lo = vaddq_s32(tmp32_lo, res_lo); |
| tmp16_low = vshrn_n_s32(tmp32_lo, 1); |
| } |
| int16x4_t res_low = vadd_s16(tmp16_low, res_sub_const); |
| res_low = vqrshl_s16(res_low, round_bits_vec); |
| int16x8_t final_res_low = vcombine_s16(res_low, res_low); |
| uint8x8_t res_8_low = vqmovun_s16(final_res_low); |
| |
| vst1_lane_u32((uint32_t *)dst8, vreinterpret_u32_u8(res_8_low), 0); |
| } else { |
| uint16x4_t res_u16_low = vqmovun_s32(res_lo); |
| vst1_u16(p, res_u16_low); |
| } |
| if (p_width > 4) { |
| uint16_t *const p4 = |
| (uint16_t *)&conv_params |
| ->dst[(i + k + 4) * conv_params->dst_stride + j + 4]; |
| |
| res_hi = vrshlq_s32(res_hi, shift_vert); |
| if (conv_params->do_average) { |
| uint8_t *const dst8_4 = &pred[(i + k + 4) * p_stride + j + 4]; |
| |
| uint16x4_t tmp16_hi = vld1_u16(p4); |
| int32x4_t tmp32_hi = vreinterpretq_s32_u32(vmovl_u16(tmp16_hi)); |
| int16x4_t tmp16_high; |
| if (conv_params->use_jnt_comp_avg) { |
| res_hi = vmulq_s32(res_hi, bwd); |
| tmp32_hi = vmulq_s32(tmp32_hi, fwd); |
| tmp32_hi = vaddq_s32(tmp32_hi, res_hi); |
| tmp16_high = vshrn_n_s32(tmp32_hi, DIST_PRECISION_BITS); |
| } else { |
| tmp32_hi = vaddq_s32(tmp32_hi, res_hi); |
| tmp16_high = vshrn_n_s32(tmp32_hi, 1); |
| } |
| int16x4_t res_high = vadd_s16(tmp16_high, res_sub_const); |
| res_high = vqrshl_s16(res_high, round_bits_vec); |
| int16x8_t final_res_high = vcombine_s16(res_high, res_high); |
| uint8x8_t res_8_high = vqmovun_s16(final_res_high); |
| |
| vst1_lane_u32((uint32_t *)dst8_4, vreinterpret_u32_u8(res_8_high), |
| 0); |
| } else { |
| uint16x4_t res_u16_high = vqmovun_s32(res_hi); |
| vst1_u16(p4, res_u16_high); |
| } |
| } |
| } else { |
| res_lo = vrshlq_s32(res_lo, shift_vert); |
| res_hi = vrshlq_s32(res_hi, shift_vert); |
| |
| result_final = vcombine_s16(vmovn_s32(res_lo), vmovn_s32(res_hi)); |
| result_final = vsubq_s16(result_final, sub_constant); |
| |
| uint8_t *const p = (uint8_t *)&pred[(i + k + 4) * p_stride + j]; |
| uint8x8_t val = vqmovun_s16(result_final); |
| |
| if (p_width == 4) { |
| vst1_lane_u32((uint32_t *)p, vreinterpret_u32_u8(val), 0); |
| } else { |
| vst1_u8(p, val); |
| } |
| } |
| } |
| } |
| } |
| } |
