31 lines
1.0 KiB
C
31 lines
1.0 KiB
C
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/*
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*
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* Copyright (c) 2018, 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 <assert.h>
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#include "config/av1_rtcd.h"
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#include "aom_dsp/arm/mem_neon.h"
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#include "aom_ports/mem.h"
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void av1_round_shift_array_neon(int32_t *arr, int size, int bit) {
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assert(!(size % 4));
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if (!bit) return;
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const int32x4_t dup_bits_n_32x4 = vdupq_n_s32((int32_t)(-bit));
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for (int i = 0; i < size; i += 4) {
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int32x4_t tmp_q_s32 = vld1q_s32(arr);
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tmp_q_s32 = vrshlq_s32(tmp_q_s32, dup_bits_n_32x4);
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vst1q_s32(arr, tmp_q_s32);
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arr += 4;
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}
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}
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