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ffmpeg/libavcodec/ppc/videodsp_ppc.c
Michael Niedermayer 6c38884876 Merge commit '620289a20e022b9c16c10d546ef86cc0bb77cc84'
* commit '620289a20e022b9c16c10d546ef86cc0bb77cc84':
  sh4: Fix silly type vs. variable name search and replace typo
  configure: Group all hwaccels together in a separate variable
  Add av_cold attributes to arch-specific init functions

Conflicts:
	configure
	libavcodec/arm/mpegvideo_armv5te.c
	libavcodec/x86/mlpdsp.c
	libavcodec/x86/motion_est.c
	libavcodec/x86/mpegvideoenc.c
	libavcodec/x86/videodsp_init.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2013-02-06 13:27:24 +01:00

37 lines
1.2 KiB
C

/*
* Copyright (c) 2003-2004 Romain Dolbeau
*
* This file is part of FFmpeg.
*
* FFmpeg 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.
*
* FFmpeg 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 FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "libavutil/attributes.h"
#include "libavcodec/videodsp.h"
static void prefetch_ppc(uint8_t *mem, ptrdiff_t stride, int h)
{
register const uint8_t *p = mem;
do {
__asm__ volatile ("dcbt 0,%0" : : "r" (p));
p += stride;
} while(--h);
}
av_cold void ff_videodsp_init_ppc(VideoDSPContext *ctx, int bpc)
{
ctx->prefetch = prefetch_ppc;
}