yading@11: /*
yading@11:  * Copyright (c) 2012
yading@11:  *      MIPS Technologies, Inc., California.
yading@11:  *
yading@11:  * Redistribution and use in source and binary forms, with or without
yading@11:  * modification, are permitted provided that the following conditions
yading@11:  * are met:
yading@11:  * 1. Redistributions of source code must retain the above copyright
yading@11:  *    notice, this list of conditions and the following disclaimer.
yading@11:  * 2. Redistributions in binary form must reproduce the above copyright
yading@11:  *    notice, this list of conditions and the following disclaimer in the
yading@11:  *    documentation and/or other materials provided with the distribution.
yading@11:  * 3. Neither the name of the MIPS Technologies, Inc., nor the names of its
yading@11:  *    contributors may be used to endorse or promote products derived from
yading@11:  *    this software without specific prior written permission.
yading@11:  *
yading@11:  * THIS SOFTWARE IS PROVIDED BY THE MIPS TECHNOLOGIES, INC. ``AS IS'' AND
yading@11:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
yading@11:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
yading@11:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE MIPS TECHNOLOGIES, INC. BE LIABLE
yading@11:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
yading@11:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
yading@11:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
yading@11:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
yading@11:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
yading@11:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
yading@11:  * SUCH DAMAGE.
yading@11:  *
yading@11:  * Author:  Nedeljko Babic (nbabic@mips.com)
yading@11:  *
yading@11:  * This file is part of FFmpeg.
yading@11:  *
yading@11:  * FFmpeg is free software; you can redistribute it and/or
yading@11:  * modify it under the terms of the GNU Lesser General Public
yading@11:  * License as published by the Free Software Foundation; either
yading@11:  * version 2.1 of the License, or (at your option) any later version.
yading@11:  *
yading@11:  * FFmpeg is distributed in the hope that it will be useful,
yading@11:  * but WITHOUT ANY WARRANTY; without even the implied warranty of
yading@11:  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
yading@11:  * Lesser General Public License for more details.
yading@11:  *
yading@11:  * You should have received a copy of the GNU Lesser General Public
yading@11:  * License along with FFmpeg; if not, write to the Free Software
yading@11:  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
yading@11:  */
yading@11: 
yading@11: /**
yading@11:  * @file
yading@11:  * MIPS optimization for some libm functions
yading@11:  */
yading@11: 
yading@11: #ifndef AVUTIL_LIBM_MIPS_H
yading@11: #define AVUTIL_LIBM_MIPS_H
yading@11: 
yading@11: static av_always_inline av_const long int lrintf_mips(float x)
yading@11: {
yading@11:     register int ret_int;
yading@11: 
yading@11:     __asm__ volatile (
yading@11:         "cvt.w.s    %[x],       %[x]    \n\t"
yading@11:         "mfc1       %[ret_int], %[x]    \n\t"
yading@11: 
yading@11:         :[x]"+f"(x), [ret_int]"=r"(ret_int)
yading@11:     );
yading@11:     return ret_int;
yading@11: }
yading@11: 
yading@11: #undef lrintf
yading@11: #define lrintf(x)   lrintf_mips(x)
yading@11: 
yading@11: #define HAVE_LRINTF 1
yading@11: #endif /* AVUTIL_LIBM_MIPS_H */