mirror of
https://github.com/FFmpeg/FFmpeg.git
synced 2024-12-02 03:06:28 +02:00
33e9473366
the incorrect UMULH, ff_sqrt, MAC64 and MLS64 to be optimized later, delete them just for now. Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
68 lines
1.9 KiB
C
68 lines
1.9 KiB
C
/*
|
|
* Copyright (c) 2009 Mans Rullgard <mans@mansr.com>
|
|
* Copyright (c) 2015 Zhou Xiaoyong <zhouxiaoyong@loongson.cn>
|
|
*
|
|
* 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 AVCODEC_MIPS_MATHOPS_H
|
|
#define AVCODEC_MIPS_MATHOPS_H
|
|
|
|
#include <stdint.h>
|
|
#include "config.h"
|
|
#include "libavutil/common.h"
|
|
|
|
#if HAVE_INLINE_ASM
|
|
|
|
#if HAVE_LOONGSON3
|
|
|
|
#define MULH MULH
|
|
static inline av_const int MULH(int a, int b)
|
|
{
|
|
int c;
|
|
__asm__ ("dmult %1, %2 \n\t"
|
|
"mflo %0 \n\t"
|
|
"dsrl %0, %0, 32 \n\t"
|
|
: "=r"(c)
|
|
: "r"(a),"r"(b)
|
|
: "hi", "lo");
|
|
return c;
|
|
}
|
|
|
|
#define mid_pred mid_pred
|
|
static inline av_const int mid_pred(int a, int b, int c)
|
|
{
|
|
int t = b;
|
|
__asm__ ("sgt $8, %1, %2 \n\t"
|
|
"movn %0, %1, $8 \n\t"
|
|
"movn %1, %2, $8 \n\t"
|
|
"sgt $8, %1, %3 \n\t"
|
|
"movz %1, %3, $8 \n\t"
|
|
"sgt $8, %0, %1 \n\t"
|
|
"movn %0, %1, $8 \n\t"
|
|
: "+&r"(t),"+&r"(a)
|
|
: "r"(b),"r"(c)
|
|
: "$8");
|
|
return t;
|
|
}
|
|
|
|
#endif /* HAVE_LOONGSON3 */
|
|
|
|
#endif /* HAVE_INLINE_ASM */
|
|
|
|
#endif /* AVCODEC_MIPS_MATHOPS_H */
|