95 lines
2.4 KiB
C
95 lines
2.4 KiB
C
/*
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* Copyright (c) 2014 The WebM project authors. 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 "./vpx_dsp_rtcd.h"
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#include "vpx/vpx_integer.h"
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void vpx_convolve_copy_neon(
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const uint8_t *src, // r0
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ptrdiff_t src_stride, // r1
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uint8_t *dst, // r2
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ptrdiff_t dst_stride, // r3
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const int16_t *filter_x,
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int filter_x_stride,
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const int16_t *filter_y,
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int filter_y_stride,
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int w,
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int h) {
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uint8x8_t d0u8, d2u8;
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uint8x16_t q0u8, q1u8, q2u8, q3u8;
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(void)filter_x; (void)filter_x_stride;
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(void)filter_y; (void)filter_y_stride;
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if (w > 32) { // copy64
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for (; h > 0; h--) {
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q0u8 = vld1q_u8(src);
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q1u8 = vld1q_u8(src + 16);
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q2u8 = vld1q_u8(src + 32);
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q3u8 = vld1q_u8(src + 48);
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src += src_stride;
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vst1q_u8(dst, q0u8);
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vst1q_u8(dst + 16, q1u8);
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vst1q_u8(dst + 32, q2u8);
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vst1q_u8(dst + 48, q3u8);
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dst += dst_stride;
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}
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} else if (w == 32) { // copy32
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for (; h > 0; h -= 2) {
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q0u8 = vld1q_u8(src);
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q1u8 = vld1q_u8(src + 16);
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src += src_stride;
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q2u8 = vld1q_u8(src);
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q3u8 = vld1q_u8(src + 16);
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src += src_stride;
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vst1q_u8(dst, q0u8);
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vst1q_u8(dst + 16, q1u8);
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dst += dst_stride;
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vst1q_u8(dst, q2u8);
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vst1q_u8(dst + 16, q3u8);
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dst += dst_stride;
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}
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} else if (w > 8) { // copy16
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for (; h > 0; h -= 2) {
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q0u8 = vld1q_u8(src);
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src += src_stride;
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q1u8 = vld1q_u8(src);
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src += src_stride;
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vst1q_u8(dst, q0u8);
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dst += dst_stride;
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vst1q_u8(dst, q1u8);
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dst += dst_stride;
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}
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} else if (w == 8) { // copy8
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for (; h > 0; h -= 2) {
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d0u8 = vld1_u8(src);
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src += src_stride;
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d2u8 = vld1_u8(src);
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src += src_stride;
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vst1_u8(dst, d0u8);
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dst += dst_stride;
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vst1_u8(dst, d2u8);
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dst += dst_stride;
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}
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} else { // copy4
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for (; h > 0; h--) {
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*(uint32_t *)dst = *(const uint32_t *)src;
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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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return;
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}
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