| /* |
| * 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 uint16_t *src, ptrdiff_t src_stride, |
| uint16_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, int bd) { |
| // + 1 to make it divisible by 4 |
| 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(src - src_stride * 3, src_stride, temp, w, |
| filter, x0_q4, x_step_q4, y0_q4, 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(temp + w * 3, w, dst, dst_stride, filter, |
| x0_q4, x_step_q4, y0_q4, y_step_q4, w, h, bd); |
| } |
| |
| void vpx_highbd_convolve8_avg_neon(const uint16_t *src, ptrdiff_t src_stride, |
| uint16_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, int bd) { |
| // + 1 to make it divisible by 4 |
| 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(src - src_stride * 3, src_stride, temp, w, |
| filter, x0_q4, x_step_q4, y0_q4, y_step_q4, w, |
| intermediate_height, bd); |
| vpx_highbd_convolve8_avg_vert_neon(temp + w * 3, w, dst, dst_stride, filter, |
| x0_q4, x_step_q4, y0_q4, y_step_q4, w, h, |
| bd); |
| } |