1233d2500723e5594f3e7c70896ffeeef32b9c950ywan/* 2233d2500723e5594f3e7c70896ffeeef32b9c950ywan * Copyright (c) 2010 The WebM project authors. All Rights Reserved. 3233d2500723e5594f3e7c70896ffeeef32b9c950ywan * 4233d2500723e5594f3e7c70896ffeeef32b9c950ywan * Use of this source code is governed by a BSD-style license 5233d2500723e5594f3e7c70896ffeeef32b9c950ywan * that can be found in the LICENSE file in the root of the source 6233d2500723e5594f3e7c70896ffeeef32b9c950ywan * tree. An additional intellectual property rights grant can be found 7233d2500723e5594f3e7c70896ffeeef32b9c950ywan * in the file PATENTS. All contributing project authors may 8233d2500723e5594f3e7c70896ffeeef32b9c950ywan * be found in the AUTHORS file in the root of the source tree. 9233d2500723e5594f3e7c70896ffeeef32b9c950ywan */ 10233d2500723e5594f3e7c70896ffeeef32b9c950ywan 11233d2500723e5594f3e7c70896ffeeef32b9c950ywan#include "vp8/common/loopfilter.h" 12233d2500723e5594f3e7c70896ffeeef32b9c950ywan#include "vpx_scale/yv12config.h" 13233d2500723e5594f3e7c70896ffeeef32b9c950ywan 14233d2500723e5594f3e7c70896ffeeef32b9c950ywanextern void vp8_memcpy_partial_neon(unsigned char *dst_ptr, 15233d2500723e5594f3e7c70896ffeeef32b9c950ywan unsigned char *src_ptr, 16233d2500723e5594f3e7c70896ffeeef32b9c950ywan int sz); 17233d2500723e5594f3e7c70896ffeeef32b9c950ywan 18233d2500723e5594f3e7c70896ffeeef32b9c950ywan 19233d2500723e5594f3e7c70896ffeeef32b9c950ywanvoid vp8_yv12_copy_partial_frame_neon(YV12_BUFFER_CONFIG *src_ybc, 20233d2500723e5594f3e7c70896ffeeef32b9c950ywan YV12_BUFFER_CONFIG *dst_ybc) 21233d2500723e5594f3e7c70896ffeeef32b9c950ywan{ 22233d2500723e5594f3e7c70896ffeeef32b9c950ywan unsigned char *src_y, *dst_y; 23233d2500723e5594f3e7c70896ffeeef32b9c950ywan int yheight; 24233d2500723e5594f3e7c70896ffeeef32b9c950ywan int ystride; 25233d2500723e5594f3e7c70896ffeeef32b9c950ywan int yoffset; 26233d2500723e5594f3e7c70896ffeeef32b9c950ywan int linestocopy; 27233d2500723e5594f3e7c70896ffeeef32b9c950ywan 28233d2500723e5594f3e7c70896ffeeef32b9c950ywan yheight = src_ybc->y_height; 29233d2500723e5594f3e7c70896ffeeef32b9c950ywan ystride = src_ybc->y_stride; 30233d2500723e5594f3e7c70896ffeeef32b9c950ywan 31233d2500723e5594f3e7c70896ffeeef32b9c950ywan /* number of MB rows to use in partial filtering */ 32233d2500723e5594f3e7c70896ffeeef32b9c950ywan linestocopy = (yheight >> 4) / PARTIAL_FRAME_FRACTION; 33233d2500723e5594f3e7c70896ffeeef32b9c950ywan linestocopy = linestocopy ? linestocopy << 4 : 16; /* 16 lines per MB */ 34233d2500723e5594f3e7c70896ffeeef32b9c950ywan 35233d2500723e5594f3e7c70896ffeeef32b9c950ywan /* Copy extra 4 so that full filter context is available if filtering done 36233d2500723e5594f3e7c70896ffeeef32b9c950ywan * on the copied partial frame and not original. Partial filter does mb 37233d2500723e5594f3e7c70896ffeeef32b9c950ywan * filtering for top row also, which can modify3 pixels above. 38233d2500723e5594f3e7c70896ffeeef32b9c950ywan */ 39233d2500723e5594f3e7c70896ffeeef32b9c950ywan linestocopy += 4; 40233d2500723e5594f3e7c70896ffeeef32b9c950ywan /* partial image starts at ~middle of frame (macroblock border) */ 41233d2500723e5594f3e7c70896ffeeef32b9c950ywan yoffset = ystride * (((yheight >> 5) * 16) - 4); 42233d2500723e5594f3e7c70896ffeeef32b9c950ywan src_y = src_ybc->y_buffer + yoffset; 43233d2500723e5594f3e7c70896ffeeef32b9c950ywan dst_y = dst_ybc->y_buffer + yoffset; 44233d2500723e5594f3e7c70896ffeeef32b9c950ywan 45233d2500723e5594f3e7c70896ffeeef32b9c950ywan vp8_memcpy_partial_neon(dst_y, src_y, ystride * linestocopy); 46233d2500723e5594f3e7c70896ffeeef32b9c950ywan} 47