66 lines
3.3 KiB
C
66 lines
3.3 KiB
C
/*
|
|
* Copyright (c) 2016 The WebM project authors. All Rights Reserved.
|
|
*
|
|
* Use of this source code is governed by a BSD-style license
|
|
* that can be found in the LICENSE file in the root of the source
|
|
* tree. An additional intellectual property rights grant can be found
|
|
* in the file PATENTS. All contributing project authors may
|
|
* be found in the AUTHORS file in the root of the source tree.
|
|
*/
|
|
|
|
#include "./vpx_dsp_rtcd.h"
|
|
#include "vpx_dsp/vpx_dsp_common.h"
|
|
#include "vpx_dsp/vpx_filter.h"
|
|
#include "vpx_ports/mem.h"
|
|
|
|
void vpx_highbd_convolve8_neon(const uint8_t *src8, ptrdiff_t src_stride,
|
|
uint8_t *dst, ptrdiff_t dst_stride,
|
|
const int16_t *filter_x, int x_step_q4,
|
|
const int16_t *filter_y, int y_step_q4, int w,
|
|
int h, int bd) {
|
|
const uint16_t *src = CONVERT_TO_SHORTPTR(src8);
|
|
const int y0_q4 = get_filter_offset(filter_y, get_filter_base(filter_y));
|
|
// + 1 to make it divisible by 4
|
|
DECLARE_ALIGNED(16, uint16_t, temp[64 * 136]);
|
|
const int intermediate_height =
|
|
(((h - 1) * y_step_q4 + y0_q4) >> SUBPEL_BITS) + SUBPEL_TAPS;
|
|
|
|
/* Filter starting 3 lines back. The neon implementation will ignore the given
|
|
* height and filter a multiple of 4 lines. Since this goes in to the temp
|
|
* buffer which has lots of extra room and is subsequently discarded this is
|
|
* safe if somewhat less than ideal. */
|
|
vpx_highbd_convolve8_horiz_neon(CONVERT_TO_BYTEPTR(src - src_stride * 3),
|
|
src_stride, CONVERT_TO_BYTEPTR(temp), w,
|
|
filter_x, x_step_q4, filter_y, y_step_q4, w,
|
|
intermediate_height, bd);
|
|
|
|
/* Step into the temp buffer 3 lines to get the actual frame data */
|
|
vpx_highbd_convolve8_vert_neon(CONVERT_TO_BYTEPTR(temp + w * 3), w, dst,
|
|
dst_stride, filter_x, x_step_q4, filter_y,
|
|
y_step_q4, w, h, bd);
|
|
}
|
|
|
|
void vpx_highbd_convolve8_avg_neon(const uint8_t *src8, ptrdiff_t src_stride,
|
|
uint8_t *dst, ptrdiff_t dst_stride,
|
|
const int16_t *filter_x, int x_step_q4,
|
|
const int16_t *filter_y, int y_step_q4,
|
|
int w, int h, int bd) {
|
|
const uint16_t *src = CONVERT_TO_SHORTPTR(src8);
|
|
const int y0_q4 = get_filter_offset(filter_y, get_filter_base(filter_y));
|
|
// + 1 to make it divisible by 4
|
|
DECLARE_ALIGNED(16, uint16_t, temp[64 * 136]);
|
|
const int intermediate_height =
|
|
(((h - 1) * y_step_q4 + y0_q4) >> SUBPEL_BITS) + SUBPEL_TAPS;
|
|
|
|
/* This implementation has the same issues as above. In addition, we only want
|
|
* to average the values after both passes.
|
|
*/
|
|
vpx_highbd_convolve8_horiz_neon(CONVERT_TO_BYTEPTR(src - src_stride * 3),
|
|
src_stride, CONVERT_TO_BYTEPTR(temp), w,
|
|
filter_x, x_step_q4, filter_y, y_step_q4, w,
|
|
intermediate_height, bd);
|
|
vpx_highbd_convolve8_avg_vert_neon(CONVERT_TO_BYTEPTR(temp + w * 3), w, dst,
|
|
dst_stride, filter_x, x_step_q4, filter_y,
|
|
y_step_q4, w, h, bd);
|
|
}
|