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Import aom library
This is the reference implementation for the Alliance for Open Media's av1 video code. The commit used was 4d668d7feb1f8abd809d1bca0418570a7f142a36.
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trav90
Roy Tam
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989 changed files with 470949 additions and 0 deletions
225
third_party/aom/aom_dsp/arm/sad4d_neon.c
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third_party/aom/aom_dsp/arm/sad4d_neon.c
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/*
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* Copyright (c) 2016, 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 <arm_neon.h>
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#include "./aom_config.h"
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#include "./aom_dsp_rtcd.h"
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#include "aom/aom_integer.h"
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static INLINE unsigned int horizontal_long_add_16x8(const uint16x8_t vec_lo,
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const uint16x8_t vec_hi) {
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const uint32x4_t vec_l_lo =
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vaddl_u16(vget_low_u16(vec_lo), vget_high_u16(vec_lo));
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const uint32x4_t vec_l_hi =
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vaddl_u16(vget_low_u16(vec_hi), vget_high_u16(vec_hi));
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const uint32x4_t a = vaddq_u32(vec_l_lo, vec_l_hi);
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const uint64x2_t b = vpaddlq_u32(a);
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const uint32x2_t c = vadd_u32(vreinterpret_u32_u64(vget_low_u64(b)),
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vreinterpret_u32_u64(vget_high_u64(b)));
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return vget_lane_u32(c, 0);
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}
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// Calculate the absolute difference of 64 bytes from vec_src_00, vec_src_16,
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// vec_src_32, vec_src_48 and ref. Accumulate partial sums in vec_sum_ref_lo
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// and vec_sum_ref_hi.
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static void sad_neon_64(const uint8x16_t vec_src_00,
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const uint8x16_t vec_src_16,
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const uint8x16_t vec_src_32,
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const uint8x16_t vec_src_48, const uint8_t *ref,
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uint16x8_t *vec_sum_ref_lo,
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uint16x8_t *vec_sum_ref_hi) {
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const uint8x16_t vec_ref_00 = vld1q_u8(ref);
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const uint8x16_t vec_ref_16 = vld1q_u8(ref + 16);
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const uint8x16_t vec_ref_32 = vld1q_u8(ref + 32);
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const uint8x16_t vec_ref_48 = vld1q_u8(ref + 48);
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*vec_sum_ref_lo = vabal_u8(*vec_sum_ref_lo, vget_low_u8(vec_src_00),
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vget_low_u8(vec_ref_00));
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*vec_sum_ref_hi = vabal_u8(*vec_sum_ref_hi, vget_high_u8(vec_src_00),
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vget_high_u8(vec_ref_00));
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*vec_sum_ref_lo = vabal_u8(*vec_sum_ref_lo, vget_low_u8(vec_src_16),
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vget_low_u8(vec_ref_16));
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*vec_sum_ref_hi = vabal_u8(*vec_sum_ref_hi, vget_high_u8(vec_src_16),
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vget_high_u8(vec_ref_16));
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*vec_sum_ref_lo = vabal_u8(*vec_sum_ref_lo, vget_low_u8(vec_src_32),
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vget_low_u8(vec_ref_32));
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*vec_sum_ref_hi = vabal_u8(*vec_sum_ref_hi, vget_high_u8(vec_src_32),
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vget_high_u8(vec_ref_32));
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*vec_sum_ref_lo = vabal_u8(*vec_sum_ref_lo, vget_low_u8(vec_src_48),
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vget_low_u8(vec_ref_48));
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*vec_sum_ref_hi = vabal_u8(*vec_sum_ref_hi, vget_high_u8(vec_src_48),
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vget_high_u8(vec_ref_48));
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}
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// Calculate the absolute difference of 32 bytes from vec_src_00, vec_src_16,
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// and ref. Accumulate partial sums in vec_sum_ref_lo and vec_sum_ref_hi.
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static void sad_neon_32(const uint8x16_t vec_src_00,
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const uint8x16_t vec_src_16, const uint8_t *ref,
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uint16x8_t *vec_sum_ref_lo,
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uint16x8_t *vec_sum_ref_hi) {
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const uint8x16_t vec_ref_00 = vld1q_u8(ref);
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const uint8x16_t vec_ref_16 = vld1q_u8(ref + 16);
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*vec_sum_ref_lo = vabal_u8(*vec_sum_ref_lo, vget_low_u8(vec_src_00),
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vget_low_u8(vec_ref_00));
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*vec_sum_ref_hi = vabal_u8(*vec_sum_ref_hi, vget_high_u8(vec_src_00),
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vget_high_u8(vec_ref_00));
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*vec_sum_ref_lo = vabal_u8(*vec_sum_ref_lo, vget_low_u8(vec_src_16),
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vget_low_u8(vec_ref_16));
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*vec_sum_ref_hi = vabal_u8(*vec_sum_ref_hi, vget_high_u8(vec_src_16),
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vget_high_u8(vec_ref_16));
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}
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void aom_sad64x64x4d_neon(const uint8_t *src, int src_stride,
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const uint8_t *const ref[4], int ref_stride,
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uint32_t *res) {
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int i;
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uint16x8_t vec_sum_ref0_lo = vdupq_n_u16(0);
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uint16x8_t vec_sum_ref0_hi = vdupq_n_u16(0);
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uint16x8_t vec_sum_ref1_lo = vdupq_n_u16(0);
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uint16x8_t vec_sum_ref1_hi = vdupq_n_u16(0);
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uint16x8_t vec_sum_ref2_lo = vdupq_n_u16(0);
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uint16x8_t vec_sum_ref2_hi = vdupq_n_u16(0);
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uint16x8_t vec_sum_ref3_lo = vdupq_n_u16(0);
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uint16x8_t vec_sum_ref3_hi = vdupq_n_u16(0);
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const uint8_t *ref0, *ref1, *ref2, *ref3;
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ref0 = ref[0];
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ref1 = ref[1];
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ref2 = ref[2];
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ref3 = ref[3];
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for (i = 0; i < 64; ++i) {
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const uint8x16_t vec_src_00 = vld1q_u8(src);
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const uint8x16_t vec_src_16 = vld1q_u8(src + 16);
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const uint8x16_t vec_src_32 = vld1q_u8(src + 32);
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const uint8x16_t vec_src_48 = vld1q_u8(src + 48);
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sad_neon_64(vec_src_00, vec_src_16, vec_src_32, vec_src_48, ref0,
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&vec_sum_ref0_lo, &vec_sum_ref0_hi);
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sad_neon_64(vec_src_00, vec_src_16, vec_src_32, vec_src_48, ref1,
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&vec_sum_ref1_lo, &vec_sum_ref1_hi);
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sad_neon_64(vec_src_00, vec_src_16, vec_src_32, vec_src_48, ref2,
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&vec_sum_ref2_lo, &vec_sum_ref2_hi);
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sad_neon_64(vec_src_00, vec_src_16, vec_src_32, vec_src_48, ref3,
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&vec_sum_ref3_lo, &vec_sum_ref3_hi);
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src += src_stride;
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ref0 += ref_stride;
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ref1 += ref_stride;
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ref2 += ref_stride;
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ref3 += ref_stride;
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}
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res[0] = horizontal_long_add_16x8(vec_sum_ref0_lo, vec_sum_ref0_hi);
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res[1] = horizontal_long_add_16x8(vec_sum_ref1_lo, vec_sum_ref1_hi);
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res[2] = horizontal_long_add_16x8(vec_sum_ref2_lo, vec_sum_ref2_hi);
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res[3] = horizontal_long_add_16x8(vec_sum_ref3_lo, vec_sum_ref3_hi);
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}
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void aom_sad32x32x4d_neon(const uint8_t *src, int src_stride,
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const uint8_t *const ref[4], int ref_stride,
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uint32_t *res) {
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int i;
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uint16x8_t vec_sum_ref0_lo = vdupq_n_u16(0);
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uint16x8_t vec_sum_ref0_hi = vdupq_n_u16(0);
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uint16x8_t vec_sum_ref1_lo = vdupq_n_u16(0);
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uint16x8_t vec_sum_ref1_hi = vdupq_n_u16(0);
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uint16x8_t vec_sum_ref2_lo = vdupq_n_u16(0);
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uint16x8_t vec_sum_ref2_hi = vdupq_n_u16(0);
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uint16x8_t vec_sum_ref3_lo = vdupq_n_u16(0);
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uint16x8_t vec_sum_ref3_hi = vdupq_n_u16(0);
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const uint8_t *ref0, *ref1, *ref2, *ref3;
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ref0 = ref[0];
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ref1 = ref[1];
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ref2 = ref[2];
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ref3 = ref[3];
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for (i = 0; i < 32; ++i) {
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const uint8x16_t vec_src_00 = vld1q_u8(src);
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const uint8x16_t vec_src_16 = vld1q_u8(src + 16);
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sad_neon_32(vec_src_00, vec_src_16, ref0, &vec_sum_ref0_lo,
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&vec_sum_ref0_hi);
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sad_neon_32(vec_src_00, vec_src_16, ref1, &vec_sum_ref1_lo,
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&vec_sum_ref1_hi);
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sad_neon_32(vec_src_00, vec_src_16, ref2, &vec_sum_ref2_lo,
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&vec_sum_ref2_hi);
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sad_neon_32(vec_src_00, vec_src_16, ref3, &vec_sum_ref3_lo,
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&vec_sum_ref3_hi);
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src += src_stride;
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ref0 += ref_stride;
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ref1 += ref_stride;
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ref2 += ref_stride;
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ref3 += ref_stride;
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}
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res[0] = horizontal_long_add_16x8(vec_sum_ref0_lo, vec_sum_ref0_hi);
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res[1] = horizontal_long_add_16x8(vec_sum_ref1_lo, vec_sum_ref1_hi);
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res[2] = horizontal_long_add_16x8(vec_sum_ref2_lo, vec_sum_ref2_hi);
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res[3] = horizontal_long_add_16x8(vec_sum_ref3_lo, vec_sum_ref3_hi);
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}
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void aom_sad16x16x4d_neon(const uint8_t *src, int src_stride,
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const uint8_t *const ref[4], int ref_stride,
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uint32_t *res) {
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int i;
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uint16x8_t vec_sum_ref0_lo = vdupq_n_u16(0);
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uint16x8_t vec_sum_ref0_hi = vdupq_n_u16(0);
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uint16x8_t vec_sum_ref1_lo = vdupq_n_u16(0);
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uint16x8_t vec_sum_ref1_hi = vdupq_n_u16(0);
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uint16x8_t vec_sum_ref2_lo = vdupq_n_u16(0);
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uint16x8_t vec_sum_ref2_hi = vdupq_n_u16(0);
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uint16x8_t vec_sum_ref3_lo = vdupq_n_u16(0);
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uint16x8_t vec_sum_ref3_hi = vdupq_n_u16(0);
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const uint8_t *ref0, *ref1, *ref2, *ref3;
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ref0 = ref[0];
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ref1 = ref[1];
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ref2 = ref[2];
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ref3 = ref[3];
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for (i = 0; i < 16; ++i) {
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const uint8x16_t vec_src = vld1q_u8(src);
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const uint8x16_t vec_ref0 = vld1q_u8(ref0);
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const uint8x16_t vec_ref1 = vld1q_u8(ref1);
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const uint8x16_t vec_ref2 = vld1q_u8(ref2);
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const uint8x16_t vec_ref3 = vld1q_u8(ref3);
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vec_sum_ref0_lo =
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vabal_u8(vec_sum_ref0_lo, vget_low_u8(vec_src), vget_low_u8(vec_ref0));
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vec_sum_ref0_hi = vabal_u8(vec_sum_ref0_hi, vget_high_u8(vec_src),
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vget_high_u8(vec_ref0));
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vec_sum_ref1_lo =
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vabal_u8(vec_sum_ref1_lo, vget_low_u8(vec_src), vget_low_u8(vec_ref1));
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vec_sum_ref1_hi = vabal_u8(vec_sum_ref1_hi, vget_high_u8(vec_src),
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vget_high_u8(vec_ref1));
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vec_sum_ref2_lo =
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vabal_u8(vec_sum_ref2_lo, vget_low_u8(vec_src), vget_low_u8(vec_ref2));
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vec_sum_ref2_hi = vabal_u8(vec_sum_ref2_hi, vget_high_u8(vec_src),
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vget_high_u8(vec_ref2));
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vec_sum_ref3_lo =
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vabal_u8(vec_sum_ref3_lo, vget_low_u8(vec_src), vget_low_u8(vec_ref3));
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vec_sum_ref3_hi = vabal_u8(vec_sum_ref3_hi, vget_high_u8(vec_src),
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vget_high_u8(vec_ref3));
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src += src_stride;
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ref0 += ref_stride;
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ref1 += ref_stride;
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ref2 += ref_stride;
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ref3 += ref_stride;
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}
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res[0] = horizontal_long_add_16x8(vec_sum_ref0_lo, vec_sum_ref0_hi);
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res[1] = horizontal_long_add_16x8(vec_sum_ref1_lo, vec_sum_ref1_hi);
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res[2] = horizontal_long_add_16x8(vec_sum_ref2_lo, vec_sum_ref2_hi);
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res[3] = horizontal_long_add_16x8(vec_sum_ref3_lo, vec_sum_ref3_hi);
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}
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