1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/media/libvpx/vp8/encoder/arm/neon/picklpf_arm.c Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,46 @@
1.4 +/*
1.5 + * Copyright (c) 2010 The WebM project authors. All Rights Reserved.
1.6 + *
1.7 + * Use of this source code is governed by a BSD-style license
1.8 + * that can be found in the LICENSE file in the root of the source
1.9 + * tree. An additional intellectual property rights grant can be found
1.10 + * in the file PATENTS. All contributing project authors may
1.11 + * be found in the AUTHORS file in the root of the source tree.
1.12 + */
1.13 +
1.14 +#include "vp8/common/loopfilter.h"
1.15 +#include "vpx_scale/yv12config.h"
1.16 +
1.17 +extern void vp8_memcpy_partial_neon(unsigned char *dst_ptr,
1.18 + unsigned char *src_ptr,
1.19 + int sz);
1.20 +
1.21 +
1.22 +void vp8_yv12_copy_partial_frame_neon(YV12_BUFFER_CONFIG *src_ybc,
1.23 + YV12_BUFFER_CONFIG *dst_ybc)
1.24 +{
1.25 + unsigned char *src_y, *dst_y;
1.26 + int yheight;
1.27 + int ystride;
1.28 + int yoffset;
1.29 + int linestocopy;
1.30 +
1.31 + yheight = src_ybc->y_height;
1.32 + ystride = src_ybc->y_stride;
1.33 +
1.34 + /* number of MB rows to use in partial filtering */
1.35 + linestocopy = (yheight >> 4) / PARTIAL_FRAME_FRACTION;
1.36 + linestocopy = linestocopy ? linestocopy << 4 : 16; /* 16 lines per MB */
1.37 +
1.38 + /* Copy extra 4 so that full filter context is available if filtering done
1.39 + * on the copied partial frame and not original. Partial filter does mb
1.40 + * filtering for top row also, which can modify3 pixels above.
1.41 + */
1.42 + linestocopy += 4;
1.43 + /* partial image starts at ~middle of frame (macroblock border) */
1.44 + yoffset = ystride * (((yheight >> 5) * 16) - 4);
1.45 + src_y = src_ybc->y_buffer + yoffset;
1.46 + dst_y = dst_ybc->y_buffer + yoffset;
1.47 +
1.48 + vp8_memcpy_partial_neon(dst_y, src_y, ystride * linestocopy);
1.49 +}
