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