7186a2dd86
It in essence refactors the code for both the interpolation filtering and the convolution. This change includes the moving of all the files as well as the changing of the code from vp9_ prefix to vpx_ prefix accordingly, for underneath architectures: (1) x86; (2) arm/neon; and (3) mips/msa. The work on mips/drsp2 will be done in a separate change list. Change-Id: Ic3ce7fb7f81210db7628b373c73553db68793c46
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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