1 /*
2 * Copyright (c) 2012
3 * MIPS Technologies, Inc., California.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
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.
16 *
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
27 * SUCH DAMAGE.
28 *
29 * Author: Nedeljko Babic (nedeljko.babic imgtec com)
30 *
31 * This file is part of FFmpeg.
32 *
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.
37 *
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.
42 *
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
46 */
47
50
53 int64_t accu;
54
57 dst[
i] =
src2[
i] + (
int)((accu + 0x40000000) >> 31);
58 }
59 }
60
62 {
64 int64_t accu;
65
69 dst[
i] = (
int)((accu+0x40000000) >> 31);
70 }
71 }
72
76 {
78
83
91 }
92 }
93
97 {
99
103
109 dst[
i] = ((int64_t)
s0*wj - (int64_t)
s1*wi + 0x40000000) >> 31;
110 dst[j] = ((int64_t)
s0*wi + (int64_t)
s1*wj + 0x40000000) >> 31;
111 }
112 }
113
115 {
117 int64_t accu;
118
119 for (
i = 0;
i <
len;
i++){
121 dst[
i] = (
int)((accu+0x40000000) >> 31);
122 }
123 }
124
126 {
127 /** p is initialized with 0x40000000 so that the proper rounding will occur
128 * at the end */
129 int64_t p = 0x40000000;
131
133 p += (int64_t)v1[
i] * v2[
i];
134
135 return (int)(p >> 31);
136 }
137
139 {
141 unsigned int *v1 = v1s;
142
143 for (
i = 0;
i <
len;
i++){
144 int t = v1[
i] - v2[
i];
147 }
148 }
149
151 {
153
154 if (!fdsp)
156
164
165 #if ARCH_X86
167 #endif
168
169 return fdsp;
170 }