53 lines
1.4 KiB
C
53 lines
1.4 KiB
C
/*
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* Copyright (c) 2020, Alliance for Open Media. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#include <arm_neon.h>
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#include "config/aom_dsp_rtcd.h"
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void aom_convolve_copy_neon(const uint8_t *src, ptrdiff_t src_stride,
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uint8_t *dst, ptrdiff_t dst_stride, int w, int h) {
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const uint8_t *src1;
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uint8_t *dst1;
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int y;
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if (!(w & 0x0F)) {
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for (y = 0; y < h; ++y) {
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src1 = src;
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dst1 = dst;
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for (int x = 0; x < (w >> 4); ++x) {
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vst1q_u8(dst1, vld1q_u8(src1));
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src1 += 16;
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dst1 += 16;
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}
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src += src_stride;
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dst += dst_stride;
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}
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} else if (!(w & 0x07)) {
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for (y = 0; y < h; ++y) {
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vst1_u8(dst, vld1_u8(src));
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src += src_stride;
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dst += dst_stride;
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}
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} else if (!(w & 0x03)) {
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for (y = 0; y < h; ++y) {
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vst1_lane_u32((uint32_t *)(dst), vreinterpret_u32_u8(vld1_u8(src)), 0);
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src += src_stride;
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dst += dst_stride;
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}
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} else if (!(w & 0x01)) {
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for (y = 0; y < h; ++y) {
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vst1_lane_u16((uint16_t *)(dst), vreinterpret_u16_u8(vld1_u8(src)), 0);
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src += src_stride;
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dst += dst_stride;
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}
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}
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}
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