| /* |
| * Copyright (c) 2010 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 "vp8/common/loopfilter.h" |
| #include "vpx_scale/yv12config.h" |
| |
| extern void vp8_memcpy_partial_neon(unsigned char *dst_ptr, |
| unsigned char *src_ptr, |
| int sz); |
| |
| |
| void vp8_yv12_copy_partial_frame_neon(YV12_BUFFER_CONFIG *src_ybc, |
| YV12_BUFFER_CONFIG *dst_ybc) |
| { |
| unsigned char *src_y, *dst_y; |
| int yheight; |
| int ystride; |
| int border; |
| int yoffset; |
| int linestocopy; |
| |
| border = src_ybc->border; |
| yheight = src_ybc->y_height; |
| ystride = src_ybc->y_stride; |
| |
| /* number of MB rows to use in partial filtering */ |
| linestocopy = (yheight >> 4) / PARTIAL_FRAME_FRACTION; |
| linestocopy = linestocopy ? linestocopy << 4 : 16; /* 16 lines per MB */ |
| |
| /* Copy extra 4 so that full filter context is available if filtering done |
| * on the copied partial frame and not original. Partial filter does mb |
| * filtering for top row also, which can modify3 pixels above. |
| */ |
| linestocopy += 4; |
| /* partial image starts at ~middle of frame (macroblock border) */ |
| yoffset = ystride * (((yheight >> 5) * 16) - 4); |
| src_y = src_ybc->y_buffer + yoffset; |
| dst_y = dst_ybc->y_buffer + yoffset; |
| |
| vp8_memcpy_partial_neon(dst_y, src_y, ystride * linestocopy); |
| } |