Mercurial > cgi-bin > hgwebdir.cgi > PR > Applications > VSs > VSs__H264__App
view libavcodec/cell/mathops_spu.h @ 3:0b056460c67d
changed code to use VSs
| author | Nina Engelhardt <nengel@mailbox.tu-berlin.de> |
|---|---|
| date | Mon, 29 Oct 2012 16:44:27 +0100 |
| parents | |
| children |
line source
1 /*
2 * simple math operations
3 * Copyright (c) 2001, 2002 Fabrice Bellard
4 * Copyright (c) 2006 Michael Niedermayer <michaelni@gmx.at> et al
5 *
6 * This file is part of FFmpeg.
7 *
8 * FFmpeg is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU Lesser General Public
10 * License as published by the Free Software Foundation; either
11 * version 2.1 of the License, or (at your option) any later version.
12 *
13 * FFmpeg is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * Lesser General Public License for more details.
17 *
18 * You should have received a copy of the GNU Lesser General Public
19 * License along with FFmpeg; if not, write to the Free Software
20 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
21 */
22 #ifndef AVCODEC_MATHOPS_H
23 #define AVCODEC_MATHOPS_H
25 // #include "libavutil/common.h"
26 // #include "libavutil/internal.h"
27 //
28 // /* generic implementation */
29 //
30 // #ifndef MULL
31 // # define MULL(a,b,s) (((int64_t)(a) * (int64_t)(b)) >> (s))
32 // #endif
33 //
34 // #ifndef MULH
35 // //gcc 3.4 creates an incredibly bloated mess out of this
36 // //# define MULH(a,b) (((int64_t)(a) * (int64_t)(b))>>32)
37 //
38 // static av_always_inline int MULH(int a, int b){
39 // return ((int64_t)(a) * (int64_t)(b))>>32;
40 // }
41 // #endif
42 //
43 // #ifndef UMULH
44 // static av_always_inline unsigned UMULH(unsigned a, unsigned b){
45 // return ((uint64_t)(a) * (uint64_t)(b))>>32;
46 // }
47 // #endif
48 //
49 // #ifndef MUL64
50 // # define MUL64(a,b) ((int64_t)(a) * (int64_t)(b))
51 // #endif
52 //
53 // #ifndef MAC64
54 // # define MAC64(d, a, b) ((d) += MUL64(a, b))
55 // #endif
56 //
57 // #ifndef MLS64
58 // # define MLS64(d, a, b) ((d) -= MUL64(a, b))
59 // #endif
60 //
61 // /* signed 16x16 -> 32 multiply add accumulate */
62 // #ifndef MAC16
63 // # define MAC16(rt, ra, rb) rt += (ra) * (rb)
64 // #endif
65 //
66 // /* signed 16x16 -> 32 multiply */
67 // #ifndef MUL16
68 // # define MUL16(ra, rb) ((ra) * (rb))
69 // #endif
70 //
71 // #ifndef MLS16
72 // # define MLS16(rt, ra, rb) ((rt) -= (ra) * (rb))
73 // #endif
75 /* median of 3 */
76 #ifndef mid_pred
77 #define mid_pred mid_pred
78 static inline av_const int mid_pred(int a, int b, int c)
79 {
80 #if 0
81 int t= (a-b)&((a-b)>>31);
82 a-=t;
83 b+=t;
84 b-= (b-c)&((b-c)>>31);
85 b+= (a-b)&((a-b)>>31);
87 return b;
88 #else
89 if(a>b){
90 if(c>b){
91 if(c>a) b=a;
92 else b=c;
93 }
94 }else{
95 if(b>c){
96 if(c>a) b=c;
97 else b=a;
98 }
99 }
100 return b;
101 #endif
102 }
103 #endif
105 // #ifndef sign_extend
106 // static inline av_const int sign_extend(int val, unsigned bits)
107 // {
108 // return (val << (INT_BIT - bits)) >> (INT_BIT - bits);
109 // }
110 // #endif
111 //
112 // #ifndef zero_extend
113 // static inline av_const unsigned zero_extend(unsigned val, unsigned bits)
114 // {
115 // return (val << (INT_BIT - bits)) >> (INT_BIT - bits);
116 // }
117 // #endif
118 //
119 // #ifndef COPY3_IF_LT
120 // #define COPY3_IF_LT(x, y, a, b, c, d)\
121 // if ((y) < (x)) {\
122 // (x) = (y);\
123 // (a) = (b);\
124 // (c) = (d);\
125 // }
126 // #endif
127 //
128 // #ifndef NEG_SSR32
129 // # define NEG_SSR32(a,s) ((( int32_t)(a))>>(32-(s)))
130 // #endif
131 //
132 // #ifndef NEG_USR32
133 // # define NEG_USR32(a,s) (((uint32_t)(a))>>(32-(s)))
134 // #endif
136 #endif /* AVCODEC_MATHOPS_H */