mirror of
https://github.com/FFmpeg/FFmpeg.git
synced 2024-11-26 19:01:44 +02:00
bc65abc8d7
Reviewed-by: Ronald S. Bultje <rsbultje@gmail.com> Signed-off-by: James Almer <jamrial@gmail.com>
39 lines
1.2 KiB
C
39 lines
1.2 KiB
C
/*
|
|
* Copyright (c) 2015 James Almer
|
|
*
|
|
* 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
|
|
*/
|
|
|
|
#ifndef AVUTIL_X86_INTMATH_H
|
|
#define AVUTIL_X86_INTMATH_H
|
|
|
|
#include <stdint.h>
|
|
#include "config.h"
|
|
|
|
/* Our generic version of av_popcount is faster than GCC's built-in on
|
|
* CPUs that don't support the popcnt instruction.
|
|
*/
|
|
#if defined(__GNUC__) && defined(__POPCNT__)
|
|
#define av_popcount __builtin_popcount
|
|
#if ARCH_X86_64
|
|
#define av_popcount64 __builtin_popcountll
|
|
#endif
|
|
|
|
#endif /* defined(__GNUC__) && defined(__POPCNT__) */
|
|
|
|
#endif /* AVUTIL_X86_INTMATH_H */
|