3 * MIPS Technologies, Inc., California.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. Neither the name of the MIPS Technologies, Inc., nor the names of its
14 * contributors may be used to endorse or promote products derived from
15 * this software without specific prior written permission.
17 * THIS SOFTWARE IS PROVIDED BY THE MIPS TECHNOLOGIES, INC. ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE MIPS TECHNOLOGIES, INC. BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 * Author: Branimir Vasic (bvasic@mips.com)
31 * This file is part of FFmpeg.
33 * FFmpeg is free software; you can redistribute it and/or
34 * modify it under the terms of the GNU Lesser General Public
35 * License as published by the Free Software Foundation; either
36 * version 2.1 of the License, or (at your option) any later version.
38 * FFmpeg is distributed in the hope that it will be useful,
39 * but WITHOUT ANY WARRANTY; without even the implied warranty of
40 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
41 * Lesser General Public License for more details.
43 * You should have received a copy of the GNU Lesser General Public
44 * License along with FFmpeg; if not, write to the Free Software
45 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
50 * Reference: libavutil/float_dsp.c
54 #include "libavutil/float_dsp.h"
56 #if HAVE_INLINE_ASM && HAVE_MIPSFPU
57 static void vector_fmul_mips(float *dst, const float *src0, const float *src1,
63 for (i = 0; i < len; i++)
64 dst[i] = src0[i] * src1[i];
66 float *d = (float *)dst;
67 float *d_end = d + len;
68 float *s0 = (float *)src0;
69 float *s1 = (float *)src1;
71 float src0_0, src0_1, src0_2, src0_3;
72 float src1_0, src1_1, src1_2, src1_3;
76 "lwc1 %[src0_0], 0(%[s0]) \n\t"
77 "lwc1 %[src1_0], 0(%[s1]) \n\t"
78 "lwc1 %[src0_1], 4(%[s0]) \n\t"
79 "lwc1 %[src1_1], 4(%[s1]) \n\t"
80 "lwc1 %[src0_2], 8(%[s0]) \n\t"
81 "lwc1 %[src1_2], 8(%[s1]) \n\t"
82 "lwc1 %[src0_3], 12(%[s0]) \n\t"
83 "lwc1 %[src1_3], 12(%[s1]) \n\t"
84 "mul.s %[src0_0], %[src0_0], %[src1_0] \n\t"
85 "mul.s %[src0_1], %[src0_1], %[src1_1] \n\t"
86 "mul.s %[src0_2], %[src0_2], %[src1_2] \n\t"
87 "mul.s %[src0_3], %[src0_3], %[src1_3] \n\t"
88 "swc1 %[src0_0], 0(%[d]) \n\t"
89 "swc1 %[src0_1], 4(%[d]) \n\t"
90 "swc1 %[src0_2], 8(%[d]) \n\t"
91 "swc1 %[src0_3], 12(%[d]) \n\t"
92 "addiu %[s0], %[s0], 16 \n\t"
93 "addiu %[s1], %[s1], 16 \n\t"
94 "addiu %[d], %[d], 16 \n\t"
95 "bne %[d], %[d_end], 1b \n\t"
97 : [src0_0]"=&f"(src0_0), [src0_1]"=&f"(src0_1),
98 [src0_2]"=&f"(src0_2), [src0_3]"=&f"(src0_3),
99 [src1_0]"=&f"(src1_0), [src1_1]"=&f"(src1_1),
100 [src1_2]"=&f"(src1_2), [src1_3]"=&f"(src1_3),
101 [d]"+r"(d), [s0]"+r"(s0), [s1]"+r"(s1)
107 #endif /* HAVE_INLINE_ASM && HAVE_MIPSFPU */
109 void ff_float_dsp_init_mips(AVFloatDSPContext *fdsp) {
110 #if HAVE_INLINE_ASM && HAVE_MIPSFPU
111 fdsp->vector_fmul = vector_fmul_mips;
112 #endif /* HAVE_INLINE_ASM && HAVE_MIPSFPU */