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113 lines
4.8 KiB
113 lines
4.8 KiB
/* |
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* Copyright (c) 2012 |
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* MIPS Technologies, Inc., California. |
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* |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions |
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* are met: |
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* 1. Redistributions of source code must retain the above copyright |
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* notice, this list of conditions and the following disclaimer. |
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* 2. Redistributions in binary form must reproduce the above copyright |
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* notice, this list of conditions and the following disclaimer in the |
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* documentation and/or other materials provided with the distribution. |
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* 3. Neither the name of the MIPS Technologies, Inc., nor the names of its |
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* contributors may be used to endorse or promote products derived from |
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* this software without specific prior written permission. |
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* |
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* THIS SOFTWARE IS PROVIDED BY THE MIPS TECHNOLOGIES, INC. ``AS IS'' AND |
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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* ARE DISCLAIMED. IN NO EVENT SHALL THE MIPS TECHNOLOGIES, INC. BE LIABLE |
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
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* SUCH DAMAGE. |
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* |
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* Author: Branimir Vasic (bvasic@mips.com) |
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* |
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* This file is part of FFmpeg. |
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* |
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* FFmpeg is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU Lesser General Public |
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* License as published by the Free Software Foundation; either |
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* version 2.1 of the License, or (at your option) any later version. |
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* |
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* FFmpeg is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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* Lesser General Public License for more details. |
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* |
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* You should have received a copy of the GNU Lesser General Public |
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* License along with FFmpeg; if not, write to the Free Software |
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
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*/ |
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/** |
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* @file |
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* Reference: libavutil/float_dsp.c |
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*/ |
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#include "config.h" |
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#include "libavutil/float_dsp.h" |
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#if HAVE_INLINE_ASM && HAVE_MIPSFPU |
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static void vector_fmul_mips(float *dst, const float *src0, const float *src1, |
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int len) |
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{ |
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int i; |
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if (len & 3) { |
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for (i = 0; i < len; i++) |
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dst[i] = src0[i] * src1[i]; |
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} else { |
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float *d = (float *)dst; |
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float *d_end = d + len; |
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float *s0 = (float *)src0; |
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float *s1 = (float *)src1; |
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float src0_0, src0_1, src0_2, src0_3; |
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float src1_0, src1_1, src1_2, src1_3; |
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__asm__ volatile ( |
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"1: \n\t" |
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"lwc1 %[src0_0], 0(%[s0]) \n\t" |
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"lwc1 %[src1_0], 0(%[s1]) \n\t" |
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"lwc1 %[src0_1], 4(%[s0]) \n\t" |
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"lwc1 %[src1_1], 4(%[s1]) \n\t" |
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"lwc1 %[src0_2], 8(%[s0]) \n\t" |
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"lwc1 %[src1_2], 8(%[s1]) \n\t" |
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"lwc1 %[src0_3], 12(%[s0]) \n\t" |
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"lwc1 %[src1_3], 12(%[s1]) \n\t" |
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"mul.s %[src0_0], %[src0_0], %[src1_0] \n\t" |
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"mul.s %[src0_1], %[src0_1], %[src1_1] \n\t" |
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"mul.s %[src0_2], %[src0_2], %[src1_2] \n\t" |
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"mul.s %[src0_3], %[src0_3], %[src1_3] \n\t" |
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"swc1 %[src0_0], 0(%[d]) \n\t" |
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"swc1 %[src0_1], 4(%[d]) \n\t" |
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"swc1 %[src0_2], 8(%[d]) \n\t" |
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"swc1 %[src0_3], 12(%[d]) \n\t" |
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"addiu %[s0], %[s0], 16 \n\t" |
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"addiu %[s1], %[s1], 16 \n\t" |
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"addiu %[d], %[d], 16 \n\t" |
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"bne %[d], %[d_end], 1b \n\t" |
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: [src0_0]"=&f"(src0_0), [src0_1]"=&f"(src0_1), |
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[src0_2]"=&f"(src0_2), [src0_3]"=&f"(src0_3), |
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[src1_0]"=&f"(src1_0), [src1_1]"=&f"(src1_1), |
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[src1_2]"=&f"(src1_2), [src1_3]"=&f"(src1_3), |
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[d]"+r"(d), [s0]"+r"(s0), [s1]"+r"(s1) |
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: [d_end]"r"(d_end) |
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: "memory" |
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); |
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} |
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} |
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#endif /* HAVE_INLINE_ASM && HAVE_MIPSFPU */ |
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void ff_float_dsp_init_mips(AVFloatDSPContext *fdsp) { |
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#if HAVE_INLINE_ASM && HAVE_MIPSFPU |
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fdsp->vector_fmul = vector_fmul_mips; |
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#endif /* HAVE_INLINE_ASM && HAVE_MIPSFPU */ |
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}
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