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/*
* This file is part of Libav.
*
* Libav is free software; you can redistribute it and/or
* modify it 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.
*
* Libav is distributed in the hope that it 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 Libav; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <stddef.h>
#include <stdint.h>
#include "libavutil/cpu.h"
#include "libavutil/error.h"
#include "libavutil/imgutils.h"
#include "libavutil/imgutils_internal.h"
#include "libavutil/internal.h"
#include "cpu.h"
void ff_image_copy_plane_uc_from_sse4(uint8_t *dst, ptrdiff_t dst_linesize,
const uint8_t *src, ptrdiff_t src_linesize,
ptrdiff_t bytewidth, int height);
int ff_image_copy_plane_uc_from_x86(uint8_t *dst, ptrdiff_t dst_linesize,
const uint8_t *src, ptrdiff_t src_linesize,
ptrdiff_t bytewidth, int height)
{
int cpu_flags = av_get_cpu_flags();
ptrdiff_t bw_aligned = FFALIGN(bytewidth, 64);
if (EXTERNAL_SSE4(cpu_flags) &&
bw_aligned <= dst_linesize && bw_aligned <= src_linesize)
ff_image_copy_plane_uc_from_sse4(dst, dst_linesize, src, src_linesize,
bw_aligned, height);
else
return AVERROR(ENOSYS);
return 0;
}
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