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https://github.com/FFmpeg/FFmpeg.git
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8200b16a9c
* commit 'd7bc52bf456deba0f32d9fe5c288ec441f1ebef5': imgutils: add a function for copying image data from GPU mapped memory Merged-by: Clément Bœsch <u@pkh.me>
50 lines
1.8 KiB
C
50 lines
1.8 KiB
C
/*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include <stddef.h>
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#include <stdint.h>
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#include "libavutil/cpu.h"
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#include "libavutil/error.h"
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#include "libavutil/imgutils.h"
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#include "libavutil/imgutils_internal.h"
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#include "libavutil/internal.h"
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#include "cpu.h"
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void ff_image_copy_plane_uc_from_sse4(uint8_t *dst, ptrdiff_t dst_linesize,
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const uint8_t *src, ptrdiff_t src_linesize,
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ptrdiff_t bytewidth, int height);
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int ff_image_copy_plane_uc_from_x86(uint8_t *dst, ptrdiff_t dst_linesize,
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const uint8_t *src, ptrdiff_t src_linesize,
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ptrdiff_t bytewidth, int height)
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{
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int cpu_flags = av_get_cpu_flags();
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ptrdiff_t bw_aligned = FFALIGN(bytewidth, 64);
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if (EXTERNAL_SSE4(cpu_flags) &&
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bw_aligned <= dst_linesize && bw_aligned <= src_linesize)
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ff_image_copy_plane_uc_from_sse4(dst, dst_linesize, src, src_linesize,
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bw_aligned, height);
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else
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return AVERROR(ENOSYS);
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return 0;
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}
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