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author | Sean Bartell <wingedtachikoma@gmail.com> | 2011-06-25 21:32:25 -0400 |
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committer | Nils Wallménius <nils@rockbox.org> | 2012-04-25 22:13:20 +0200 |
commit | f40bfc9267b13b54e6379dfe7539447662879d24 (patch) | |
tree | 9b20069d5e62809ff434061ad730096836f916f2 /lib/rbcodec/codecs/libwmavoice/mathops.h | |
parent | a0009907de7a0107d49040d8a180f140e2eff299 (diff) | |
download | rockbox-f40bfc9267b13b54e6379dfe7539447662879d24.tar.gz rockbox-f40bfc9267b13b54e6379dfe7539447662879d24.zip |
Add codecs to librbcodec.
Change-Id: Id7f4717d51ed02d67cb9f9cb3c0ada4a81843f97
Reviewed-on: http://gerrit.rockbox.org/137
Reviewed-by: Nils Wallménius <nils@rockbox.org>
Tested-by: Nils Wallménius <nils@rockbox.org>
Diffstat (limited to 'lib/rbcodec/codecs/libwmavoice/mathops.h')
-rw-r--r-- | lib/rbcodec/codecs/libwmavoice/mathops.h | 182 |
1 files changed, 182 insertions, 0 deletions
diff --git a/lib/rbcodec/codecs/libwmavoice/mathops.h b/lib/rbcodec/codecs/libwmavoice/mathops.h new file mode 100644 index 0000000000..4d88ed14c9 --- /dev/null +++ b/lib/rbcodec/codecs/libwmavoice/mathops.h | |||
@@ -0,0 +1,182 @@ | |||
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 | ||
24 | |||
25 | #include "libavutil/common.h" | ||
26 | |||
27 | #if ARCH_ARM | ||
28 | # include "arm/mathops.h" | ||
29 | #elif ARCH_AVR32 | ||
30 | # include "avr32/mathops.h" | ||
31 | #elif ARCH_BFIN | ||
32 | # include "bfin/mathops.h" | ||
33 | #elif ARCH_MIPS | ||
34 | # include "mips/mathops.h" | ||
35 | #elif ARCH_PPC | ||
36 | # include "ppc/mathops.h" | ||
37 | #elif ARCH_X86 | ||
38 | # include "x86/mathops.h" | ||
39 | #endif | ||
40 | |||
41 | /* generic implementation */ | ||
42 | |||
43 | #ifndef MULL | ||
44 | # define MULL(a,b,s) (((int64_t)(a) * (int64_t)(b)) >> (s)) | ||
45 | #endif | ||
46 | |||
47 | #ifndef MULH | ||
48 | //gcc 3.4 creates an incredibly bloated mess out of this | ||
49 | //# define MULH(a,b) (((int64_t)(a) * (int64_t)(b))>>32) | ||
50 | |||
51 | static av_always_inline int MULH(int a, int b){ | ||
52 | return ((int64_t)(a) * (int64_t)(b))>>32; | ||
53 | } | ||
54 | #endif | ||
55 | |||
56 | #ifndef UMULH | ||
57 | static av_always_inline unsigned UMULH(unsigned a, unsigned b){ | ||
58 | return ((uint64_t)(a) * (uint64_t)(b))>>32; | ||
59 | } | ||
60 | #endif | ||
61 | |||
62 | #ifndef MUL64 | ||
63 | # define MUL64(a,b) ((int64_t)(a) * (int64_t)(b)) | ||
64 | #endif | ||
65 | |||
66 | #ifndef MAC64 | ||
67 | # define MAC64(d, a, b) ((d) += MUL64(a, b)) | ||
68 | #endif | ||
69 | |||
70 | #ifndef MLS64 | ||
71 | # define MLS64(d, a, b) ((d) -= MUL64(a, b)) | ||
72 | #endif | ||
73 | |||
74 | /* signed 16x16 -> 32 multiply add accumulate */ | ||
75 | #ifndef MAC16 | ||
76 | # define MAC16(rt, ra, rb) rt += (ra) * (rb) | ||
77 | #endif | ||
78 | |||
79 | /* signed 16x16 -> 32 multiply */ | ||
80 | #ifndef MUL16 | ||
81 | # define MUL16(ra, rb) ((ra) * (rb)) | ||
82 | #endif | ||
83 | |||
84 | #ifndef MLS16 | ||
85 | # define MLS16(rt, ra, rb) ((rt) -= (ra) * (rb)) | ||
86 | #endif | ||
87 | |||
88 | /* median of 3 */ | ||
89 | #ifndef mid_pred | ||
90 | #define mid_pred mid_pred | ||
91 | static inline av_const int mid_pred(int a, int b, int c) | ||
92 | { | ||
93 | #if 0 | ||
94 | int t= (a-b)&((a-b)>>31); | ||
95 | a-=t; | ||
96 | b+=t; | ||
97 | b-= (b-c)&((b-c)>>31); | ||
98 | b+= (a-b)&((a-b)>>31); | ||
99 | |||
100 | return b; | ||
101 | #else | ||
102 | if(a>b){ | ||
103 | if(c>b){ | ||
104 | if(c>a) b=a; | ||
105 | else b=c; | ||
106 | } | ||
107 | }else{ | ||
108 | if(b>c){ | ||
109 | if(c>a) b=c; | ||
110 | else b=a; | ||
111 | } | ||
112 | } | ||
113 | return b; | ||
114 | #endif | ||
115 | } | ||
116 | #endif | ||
117 | |||
118 | #ifndef sign_extend | ||
119 | static inline av_const int sign_extend(int val, unsigned bits) | ||
120 | { | ||
121 | return (val << ((8 * sizeof(int)) - bits)) >> ((8 * sizeof(int)) - bits); | ||
122 | } | ||
123 | #endif | ||
124 | |||
125 | #ifndef zero_extend | ||
126 | static inline av_const unsigned zero_extend(unsigned val, unsigned bits) | ||
127 | { | ||
128 | return (val << ((8 * sizeof(int)) - bits)) >> ((8 * sizeof(int)) - bits); | ||
129 | } | ||
130 | #endif | ||
131 | |||
132 | #ifndef COPY3_IF_LT | ||
133 | #define COPY3_IF_LT(x, y, a, b, c, d)\ | ||
134 | if ((y) < (x)) {\ | ||
135 | (x) = (y);\ | ||
136 | (a) = (b);\ | ||
137 | (c) = (d);\ | ||
138 | } | ||
139 | #endif | ||
140 | |||
141 | #ifndef NEG_SSR32 | ||
142 | # define NEG_SSR32(a,s) ((( int32_t)(a))>>(32-(s))) | ||
143 | #endif | ||
144 | |||
145 | #ifndef NEG_USR32 | ||
146 | # define NEG_USR32(a,s) (((uint32_t)(a))>>(32-(s))) | ||
147 | #endif | ||
148 | |||
149 | #if HAVE_BIGENDIAN | ||
150 | # ifndef PACK_2U8 | ||
151 | # define PACK_2U8(a,b) (((a) << 8) | (b)) | ||
152 | # endif | ||
153 | # ifndef PACK_4U8 | ||
154 | # define PACK_4U8(a,b,c,d) (((a) << 24) | ((b) << 16) | ((c) << 8) | (d)) | ||
155 | # endif | ||
156 | # ifndef PACK_2U16 | ||
157 | # define PACK_2U16(a,b) (((a) << 16) | (b)) | ||
158 | # endif | ||
159 | #else | ||
160 | # ifndef PACK_2U8 | ||
161 | # define PACK_2U8(a,b) (((b) << 8) | (a)) | ||
162 | # endif | ||
163 | # ifndef PACK_4U2 | ||
164 | # define PACK_4U8(a,b,c,d) (((d) << 24) | ((c) << 16) | ((b) << 8) | (a)) | ||
165 | # endif | ||
166 | # ifndef PACK_2U16 | ||
167 | # define PACK_2U16(a,b) (((b) << 16) | (a)) | ||
168 | # endif | ||
169 | #endif | ||
170 | |||
171 | #ifndef PACK_2S8 | ||
172 | # define PACK_2S8(a,b) PACK_2U8((a)&255, (b)&255) | ||
173 | #endif | ||
174 | #ifndef PACK_4S8 | ||
175 | # define PACK_4S8(a,b,c,d) PACK_4U8((a)&255, (b)&255, (c)&255, (d)&255) | ||
176 | #endif | ||
177 | #ifndef PACK_2S16 | ||
178 | # define PACK_2S16(a,b) PACK_2U16((a)&0xffff, (b)&0xffff) | ||
179 | #endif | ||
180 | |||
181 | #endif /* AVCODEC_MATHOPS_H */ | ||
182 | |||