The Tor Browser / file comparison
comparison: media/libvpx/vp8/encoder/arm/neon/picklpf_arm.c
media/libvpx/vp8/encoder/arm/neon/picklpf_arm.c
- branch
- TOR_BUG_9701
- changeset 15
- b8a032363ba2
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| -1:000000000000 | 0:a9a76c984316 |
|---|---|
| 1 /* | |
| 2 * Copyright (c) 2010 The WebM project authors. All Rights Reserved. | |
| 3 * | |
| 4 * Use of this source code is governed by a BSD-style license | |
| 5 * that can be found in the LICENSE file in the root of the source | |
| 6 * tree. An additional intellectual property rights grant can be found | |
| 7 * in the file PATENTS. All contributing project authors may | |
| 8 * be found in the AUTHORS file in the root of the source tree. | |
| 9 */ | |
| 10 | |
| 11 #include "vp8/common/loopfilter.h" | |
| 12 #include "vpx_scale/yv12config.h" | |
| 13 | |
| 14 extern void vp8_memcpy_partial_neon(unsigned char *dst_ptr, | |
| 15 unsigned char *src_ptr, | |
| 16 int sz); | |
| 17 | |
| 18 | |
| 19 void vp8_yv12_copy_partial_frame_neon(YV12_BUFFER_CONFIG *src_ybc, | |
| 20 YV12_BUFFER_CONFIG *dst_ybc) | |
| 21 { | |
| 22 unsigned char *src_y, *dst_y; | |
| 23 int yheight; | |
| 24 int ystride; | |
| 25 int yoffset; | |
| 26 int linestocopy; | |
| 27 | |
| 28 yheight = src_ybc->y_height; | |
| 29 ystride = src_ybc->y_stride; | |
| 30 | |
| 31 /* number of MB rows to use in partial filtering */ | |
| 32 linestocopy = (yheight >> 4) / PARTIAL_FRAME_FRACTION; | |
| 33 linestocopy = linestocopy ? linestocopy << 4 : 16; /* 16 lines per MB */ | |
| 34 | |
| 35 /* Copy extra 4 so that full filter context is available if filtering done | |
| 36 * on the copied partial frame and not original. Partial filter does mb | |
| 37 * filtering for top row also, which can modify3 pixels above. | |
| 38 */ | |
| 39 linestocopy += 4; | |
| 40 /* partial image starts at ~middle of frame (macroblock border) */ | |
| 41 yoffset = ystride * (((yheight >> 5) * 16) - 4); | |
| 42 src_y = src_ybc->y_buffer + yoffset; | |
| 43 dst_y = dst_ybc->y_buffer + yoffset; | |
| 44 | |
| 45 vp8_memcpy_partial_neon(dst_y, src_y, ystride * linestocopy); | |
| 46 } |
