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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 4349 | Serge | 1 | /* |
| 2 | * Copyright (c) 2012 |
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| 3 | * MIPS Technologies, Inc., California. |
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| 4 | * |
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| 5 | * Redistribution and use in source and binary forms, with or without |
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| 6 | * modification, are permitted provided that the following conditions |
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| 7 | * are met: |
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| 8 | * 1. Redistributions of source code must retain the above copyright |
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| 9 | * notice, this list of conditions and the following disclaimer. |
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| 10 | * 2. Redistributions in binary form must reproduce the above copyright |
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| 11 | * notice, this list of conditions and the following disclaimer in the |
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| 12 | * documentation and/or other materials provided with the distribution. |
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| 13 | * 3. Neither the name of the MIPS Technologies, Inc., nor the names of its |
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| 14 | * contributors may be used to endorse or promote products derived from |
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| 15 | * this software without specific prior written permission. |
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| 16 | * |
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| 17 | * THIS SOFTWARE IS PROVIDED BY THE MIPS TECHNOLOGIES, INC. ``AS IS'' AND |
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| 18 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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| 19 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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| 20 | * ARE DISCLAIMED. IN NO EVENT SHALL THE MIPS TECHNOLOGIES, INC. BE LIABLE |
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| 21 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
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| 22 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
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| 23 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
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| 24 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
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| 25 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
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| 26 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
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| 27 | * SUCH DAMAGE. |
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| 28 | * |
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| 29 | * Author: Nedeljko Babic (nbabic@mips.com) |
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| 30 | * |
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| 31 | * This file is part of FFmpeg. |
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| 32 | * |
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| 33 | * FFmpeg is free software; you can redistribute it and/or |
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| 34 | * modify it under the terms of the GNU Lesser General Public |
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| 35 | * License as published by the Free Software Foundation; either |
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| 36 | * version 2.1 of the License, or (at your option) any later version. |
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| 37 | * |
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| 38 | * FFmpeg is distributed in the hope that it will be useful, |
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| 39 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 40 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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| 41 | * Lesser General Public License for more details. |
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| 42 | * |
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| 43 | * You should have received a copy of the GNU Lesser General Public |
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| 44 | * License along with FFmpeg; if not, write to the Free Software |
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| 45 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
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| 46 | */ |
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| 47 | |||
| 48 | /** |
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| 49 | * @file |
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| 50 | * MIPS optimization for some libm functions |
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| 51 | */ |
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| 52 | |||
| 53 | #ifndef AVUTIL_LIBM_MIPS_H |
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| 54 | #define AVUTIL_LIBM_MIPS_H |
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| 55 | |||
| 56 | static av_always_inline av_const long int lrintf_mips(float x) |
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| 57 | { |
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| 58 | register int ret_int; |
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| 59 | |||
| 60 | __asm__ volatile ( |
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| 61 | "cvt.w.s %[x], %[x] \n\t" |
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| 62 | "mfc1 %[ret_int], %[x] \n\t" |
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| 63 | |||
| 64 | :[x]"+f"(x), [ret_int]"=r"(ret_int) |
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| 65 | ); |
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| 66 | return ret_int; |
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| 67 | } |
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| 68 | |||
| 69 | #undef lrintf |
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| 70 | #define lrintf(x) lrintf_mips(x) |
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| 71 | |||
| 72 | #define HAVE_LRINTF 1 |
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| 73 | #endif /* AVUTIL_LIBM_MIPS_H */ |