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/*
* Copyright (c) 2023 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 <assert.h>
#include "./vpx_dsp_rtcd.h"
#include "vpx_dsp/arm/vpx_convolve8_neon.h"
#include "vpx_dsp/vpx_dsp_common.h"
#include "vpx_ports/mem.h"
void vpx_convolve8_neon_dotprod(const uint8_t *src, ptrdiff_t src_stride,
uint8_t *dst, ptrdiff_t dst_stride,
const InterpKernel *filter, int x0_q4,
int x_step_q4, int y0_q4, int y_step_q4, int w,
int h) {
/* Given our constraints: w <= 64, h <= 64, taps == 8 we can reduce the
* maximum buffer size to 64 * (64 + 7). */
uint8_t temp[64 * 71];
/* Account for the vertical phase needing 3 lines prior and 4 lines post. */
const int intermediate_height = h + 7;
assert(y_step_q4 == 16);
assert(x_step_q4 == 16);
/* Filter starting 3 lines back. */
vpx_convolve8_2d_horiz_neon_dotprod(src - src_stride * 3, src_stride, temp, w,
filter, x0_q4, x_step_q4, y0_q4,
y_step_q4, w, intermediate_height);
/* Step into the temp buffer 3 lines to get the actual frame data. */
vpx_convolve8_vert_neon_dotprod(temp + w * 3, w, dst, dst_stride, filter,
x0_q4, x_step_q4, y0_q4, y_step_q4, w, h);
}
void vpx_convolve8_avg_neon_dotprod(const uint8_t *src, ptrdiff_t src_stride,
uint8_t *dst, ptrdiff_t dst_stride,
const InterpKernel *filter, int x0_q4,
int x_step_q4, int y0_q4, int y_step_q4,
int w, int h) {
uint8_t temp[64 * 71];
const int intermediate_height = h + 7;
assert(y_step_q4 == 16);
assert(x_step_q4 == 16);
vpx_convolve8_2d_horiz_neon_dotprod(src - src_stride * 3, src_stride, temp, w,
filter, x0_q4, x_step_q4, y0_q4,
y_step_q4, w, intermediate_height);
vpx_convolve8_avg_vert_neon_dotprod(temp + w * 3, w, dst, dst_stride, filter,
x0_q4, x_step_q4, y0_q4, y_step_q4, w, h);
}
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