From 150c9823e71a161e97003849cf8b2f55b21520bd Mon Sep 17 00:00:00 2001 From: Tim Redfern Date: Mon, 26 Aug 2013 15:10:18 +0100 Subject: adding ffmpeg specific version --- ffmpeg1/libavcodec/mips/mathops.h | 82 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 82 insertions(+) create mode 100644 ffmpeg1/libavcodec/mips/mathops.h (limited to 'ffmpeg1/libavcodec/mips/mathops.h') diff --git a/ffmpeg1/libavcodec/mips/mathops.h b/ffmpeg1/libavcodec/mips/mathops.h new file mode 100644 index 0000000..368290a --- /dev/null +++ b/ffmpeg1/libavcodec/mips/mathops.h @@ -0,0 +1,82 @@ +/* + * Copyright (c) 2009 Mans Rullgard + * + * 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 +#include "config.h" +#include "libavutil/common.h" + +#if HAVE_INLINE_ASM + +#if HAVE_LOONGSON + +static inline av_const int64_t MAC64(int64_t d, int a, int b) +{ + int64_t m; + __asm__ ("dmult.g %1, %2, %3 \n\t" + "daddu %0, %0, %1 \n\t" + : "+r"(d), "=&r"(m) : "r"(a), "r"(b)); + return d; +} +#define MAC64(d, a, b) ((d) = MAC64(d, a, b)) + +static inline av_const int64_t MLS64(int64_t d, int a, int b) +{ + int64_t m; + __asm__ ("dmult.g %1, %2, %3 \n\t" + "dsubu %0, %0, %1 \n\t" + : "+r"(d), "=&r"(m) : "r"(a), "r"(b)); + return d; +} +#define MLS64(d, a, b) ((d) = MLS64(d, a, b)) + +#elif ARCH_MIPS64 + +static inline av_const int64_t MAC64(int64_t d, int a, int b) +{ + int64_t m; + __asm__ ("dmult %2, %3 \n\t" + "mflo %1 \n\t" + "daddu %0, %0, %1 \n\t" + : "+r"(d), "=&r"(m) : "r"(a), "r"(b) + : "hi", "lo"); + return d; +} +#define MAC64(d, a, b) ((d) = MAC64(d, a, b)) + +static inline av_const int64_t MLS64(int64_t d, int a, int b) +{ + int64_t m; + __asm__ ("dmult %2, %3 \n\t" + "mflo %1 \n\t" + "dsubu %0, %0, %1 \n\t" + : "+r"(d), "=&r"(m) : "r"(a), "r"(b) + : "hi", "lo"); + return d; +} +#define MLS64(d, a, b) ((d) = MLS64(d, a, b)) + +#endif + +#endif /* HAVE_INLINE_ASM */ + +#endif /* AVCODEC_MIPS_MATHOPS_H */ -- cgit v1.2.3