media/libvpx/vp8/encoder/arm/neon/picklpf_arm.c@b8a032363ba2 (annotated)
media/libvpx/vp8/encoder/arm/neon/picklpf_arm.c
Thu, 22 Jan 2015 13:21:57 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Thu, 22 Jan 2015 13:21:57 +0100
- branch
- TOR_BUG_9701
- changeset 15
- b8a032363ba2
- permissions
- -rw-r--r--
Incorporate requested changes from Mozilla in review:
https://bugzilla.mozilla.org/show_bug.cgi?id=1123480#c6
| michael@0 | 1 | /* |
| michael@0 | 2 | * Copyright (c) 2010 The WebM project authors. All Rights Reserved. |
| michael@0 | 3 | * |
| michael@0 | 4 | * Use of this source code is governed by a BSD-style license |
| michael@0 | 5 | * that can be found in the LICENSE file in the root of the source |
| michael@0 | 6 | * tree. An additional intellectual property rights grant can be found |
| michael@0 | 7 | * in the file PATENTS. All contributing project authors may |
| michael@0 | 8 | * be found in the AUTHORS file in the root of the source tree. |
| michael@0 | 9 | */ |
| michael@0 | 10 | |
| michael@0 | 11 | #include "vp8/common/loopfilter.h" |
| michael@0 | 12 | #include "vpx_scale/yv12config.h" |
| michael@0 | 13 | |
| michael@0 | 14 | extern void vp8_memcpy_partial_neon(unsigned char *dst_ptr, |
| michael@0 | 15 | unsigned char *src_ptr, |
| michael@0 | 16 | int sz); |
| michael@0 | 17 | |
| michael@0 | 18 | |
| michael@0 | 19 | void vp8_yv12_copy_partial_frame_neon(YV12_BUFFER_CONFIG *src_ybc, |
| michael@0 | 20 | YV12_BUFFER_CONFIG *dst_ybc) |
| michael@0 | 21 | { |
| michael@0 | 22 | unsigned char *src_y, *dst_y; |
| michael@0 | 23 | int yheight; |
| michael@0 | 24 | int ystride; |
| michael@0 | 25 | int yoffset; |
| michael@0 | 26 | int linestocopy; |
| michael@0 | 27 | |
| michael@0 | 28 | yheight = src_ybc->y_height; |
| michael@0 | 29 | ystride = src_ybc->y_stride; |
| michael@0 | 30 | |
| michael@0 | 31 | /* number of MB rows to use in partial filtering */ |
| michael@0 | 32 | linestocopy = (yheight >> 4) / PARTIAL_FRAME_FRACTION; |
| michael@0 | 33 | linestocopy = linestocopy ? linestocopy << 4 : 16; /* 16 lines per MB */ |
| michael@0 | 34 | |
| michael@0 | 35 | /* Copy extra 4 so that full filter context is available if filtering done |
| michael@0 | 36 | * on the copied partial frame and not original. Partial filter does mb |
| michael@0 | 37 | * filtering for top row also, which can modify3 pixels above. |
| michael@0 | 38 | */ |
| michael@0 | 39 | linestocopy += 4; |
| michael@0 | 40 | /* partial image starts at ~middle of frame (macroblock border) */ |
| michael@0 | 41 | yoffset = ystride * (((yheight >> 5) * 16) - 4); |
| michael@0 | 42 | src_y = src_ybc->y_buffer + yoffset; |
| michael@0 | 43 | dst_y = dst_ybc->y_buffer + yoffset; |
| michael@0 | 44 | |
| michael@0 | 45 | vp8_memcpy_partial_neon(dst_y, src_y, ystride * linestocopy); |
| michael@0 | 46 | } |
