mpv/TOOLS/vf_dlopen/filterutils.c

41 lines
1.3 KiB
C

/*
* Copyright (c) 2012 Rudolf Polzer <divVerent@xonotic.org>
*
* This file is part of mpv's vf_dlopen examples.
*
* mpv's vf_dlopen examples are free software; you can redistribute them and/or
* modify them under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of the
* License, or (at your option) any later version.
*
* mpv's vf_dlopen examples are distributed in the hope that they will be
* useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser
* General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with mpv's vf_dlopen examples; if not, write to the Free
* Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
* 02110-1301 USA
*/
#include <assert.h>
#include <string.h>
#include "filterutils.h"
void copy_plane(
unsigned char *dest, unsigned dest_stride,
const unsigned char *src, unsigned src_stride,
unsigned length,
unsigned rows
)
{
unsigned i;
assert(dest_stride >= length);
assert(src_stride >= length);
for (i = 0; i < rows; ++i)
memcpy(&dest[dest_stride * i], &src[src_stride * i], length);
}