d331e7a1c0
so that the convolve functions are independent of table alignment. Change-Id: Ieab132a30d72c6e75bbe9473544fbe2cf51541ee
59 lines
2.8 KiB
C
59 lines
2.8 KiB
C
/*
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* Copyright (c) 2016 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 "./vpx_dsp_rtcd.h"
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#include "vpx_dsp/vpx_dsp_common.h"
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#include "vpx_dsp/vpx_filter.h"
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#include "vpx_ports/mem.h"
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void vpx_highbd_convolve8_neon(const uint16_t *src, ptrdiff_t src_stride,
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uint16_t *dst, ptrdiff_t dst_stride,
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const InterpKernel *filter, int x0_q4,
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int x_step_q4, int y0_q4, int y_step_q4, int w,
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int h, int bd) {
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// + 1 to make it divisible by 4
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uint16_t temp[64 * 136];
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const int intermediate_height =
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(((h - 1) * y_step_q4 + y0_q4) >> SUBPEL_BITS) + SUBPEL_TAPS;
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/* Filter starting 3 lines back. The neon implementation will ignore the given
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* height and filter a multiple of 4 lines. Since this goes in to the temp
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* buffer which has lots of extra room and is subsequently discarded this is
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* safe if somewhat less than ideal. */
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vpx_highbd_convolve8_horiz_neon(src - src_stride * 3, src_stride, temp, w,
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filter, x0_q4, x_step_q4, y0_q4, y_step_q4, w,
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intermediate_height, bd);
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/* Step into the temp buffer 3 lines to get the actual frame data */
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vpx_highbd_convolve8_vert_neon(temp + w * 3, w, dst, dst_stride, filter,
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x0_q4, x_step_q4, y0_q4, y_step_q4, w, h, bd);
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}
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void vpx_highbd_convolve8_avg_neon(const uint16_t *src, ptrdiff_t src_stride,
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uint16_t *dst, ptrdiff_t dst_stride,
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const InterpKernel *filter, int x0_q4,
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int x_step_q4, int y0_q4, int y_step_q4,
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int w, int h, int bd) {
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// + 1 to make it divisible by 4
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uint16_t temp[64 * 136];
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const int intermediate_height =
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(((h - 1) * y_step_q4 + y0_q4) >> SUBPEL_BITS) + SUBPEL_TAPS;
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/* This implementation has the same issues as above. In addition, we only want
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* to average the values after both passes.
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*/
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vpx_highbd_convolve8_horiz_neon(src - src_stride * 3, src_stride, temp, w,
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filter, x0_q4, x_step_q4, y0_q4, y_step_q4, w,
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intermediate_height, bd);
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vpx_highbd_convolve8_avg_vert_neon(temp + w * 3, w, dst, dst_stride, filter,
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x0_q4, x_step_q4, y0_q4, y_step_q4, w, h,
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bd);
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}
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