chromium/third_party/libvpx/source/libvpx/vp8/common/extend.c

/*
 *  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 "extend.h"
#include "vpx_mem/vpx_mem.h"

static void copy_and_extend_plane(
    unsigned char *s,      /* source */
    int sp,                /* source pitch */
    unsigned char *d,      /* destination */
    int dp,                /* destination pitch */
    int h,                 /* height */
    int w,                 /* width */
    int et,                /* extend top border */
    int el,                /* extend left border */
    int eb,                /* extend bottom border */
    int er,                /* extend right border */
    int interleave_step) { … }

void vp8_copy_and_extend_frame(YV12_BUFFER_CONFIG *src,
                               YV12_BUFFER_CONFIG *dst) { … }

void vp8_copy_and_extend_frame_with_rect(YV12_BUFFER_CONFIG *src,
                                         YV12_BUFFER_CONFIG *dst, int srcy,
                                         int srcx, int srch, int srcw) { … }

/* note the extension is only for the last row, for intra prediction purpose */
void vp8_extend_mb_row(YV12_BUFFER_CONFIG *ybf, unsigned char *YPtr,
                       unsigned char *UPtr, unsigned char *VPtr) { … }