diff options
Diffstat (limited to 'OpenSim/Framework/OpenJpeg/bio.cs')
-rw-r--r-- | OpenSim/Framework/OpenJpeg/bio.cs | 162 |
1 files changed, 0 insertions, 162 deletions
diff --git a/OpenSim/Framework/OpenJpeg/bio.cs b/OpenSim/Framework/OpenJpeg/bio.cs deleted file mode 100644 index 4a5b321..0000000 --- a/OpenSim/Framework/OpenJpeg/bio.cs +++ /dev/null | |||
@@ -1,162 +0,0 @@ | |||
1 | /* | ||
2 | * Copyright (c) Contributors, http://opensimulator.org/ | ||
3 | * See CONTRIBUTORS.TXT for a full list of copyright holders. | ||
4 | * | ||
5 | * Redistribution and use in source and binary forms, with or without | ||
6 | * modification, are permitted provided that the following conditions are met: | ||
7 | * * Redistributions of source code must retain the above copyright | ||
8 | * notice, this list of conditions and the following disclaimer. | ||
9 | * * Redistributions in binary form must reproduce the above copyright | ||
10 | * notice, this list of conditions and the following disclaimer in the | ||
11 | * documentation and/or other materials provided with the distribution. | ||
12 | * * Neither the name of the OpenSimulator Project nor the | ||
13 | * names of its contributors may be used to endorse or promote products | ||
14 | * derived from this software without specific prior written permission. | ||
15 | * | ||
16 | * THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY | ||
17 | * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED | ||
18 | * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE | ||
19 | * DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY | ||
20 | * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES | ||
21 | * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; | ||
22 | * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND | ||
23 | * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | ||
24 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS | ||
25 | * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | ||
26 | */ | ||
27 | |||
28 | using System; | ||
29 | using System.Collections.Generic; | ||
30 | using System.Text; | ||
31 | |||
32 | namespace OpenSim.Framework.OpenJpeg | ||
33 | { | ||
34 | public static class bio | ||
35 | { | ||
36 | public static opj_bio bio_create() | ||
37 | { | ||
38 | opj_bio bio = new opj_bio(); | ||
39 | return bio; | ||
40 | } | ||
41 | |||
42 | public static void bio_destroy(opj_bio bio) | ||
43 | { | ||
44 | // not needed on C# | ||
45 | } | ||
46 | |||
47 | public static int bio_numbytes(opj_bio bio) | ||
48 | { | ||
49 | return (bio.bp - bio.start); | ||
50 | } | ||
51 | |||
52 | public static void bio_init_enc(opj_bio bio, sbyte bp, int len) | ||
53 | { | ||
54 | bio.start = (byte)bp; | ||
55 | bio.end = (byte)(bp + (byte)len); | ||
56 | bio.bp = (byte)bp; | ||
57 | bio.buf = 0; | ||
58 | bio.ct = 8; | ||
59 | } | ||
60 | |||
61 | public static void bio_init_dec(opj_bio bio, sbyte bp, int len) | ||
62 | { | ||
63 | bio.start = (byte)bp; | ||
64 | bio.end = (byte)(bp + len); | ||
65 | bio.bp = (byte)bp; | ||
66 | bio.buf = 0; | ||
67 | bio.ct = 0; | ||
68 | } | ||
69 | |||
70 | public static void bio_write(opj_bio bio, int v, int n) | ||
71 | { | ||
72 | for (int i = n - 1; i >= 0; i--) | ||
73 | bio_putbit(bio, (v >> i) & 1); | ||
74 | } | ||
75 | |||
76 | public static int bio_read(opj_bio bio, int n) | ||
77 | { | ||
78 | int v = 0; | ||
79 | for (int i = n - 1; i >= 0; i--) | ||
80 | v += bio_getbit(bio) << i; | ||
81 | |||
82 | return v; | ||
83 | } | ||
84 | |||
85 | public static int bio_flush(opj_bio bio) | ||
86 | { | ||
87 | bio.ct = 0; | ||
88 | if (bio_byteout(bio) != 0) | ||
89 | return 1; | ||
90 | |||
91 | if (bio.ct == 7) | ||
92 | { | ||
93 | bio.ct = 0; | ||
94 | if (bio_byteout(bio) != 0) | ||
95 | return 1; | ||
96 | } | ||
97 | return 0; | ||
98 | } | ||
99 | |||
100 | public static int bio_inalign(opj_bio bio) | ||
101 | { | ||
102 | bio.ct = 0; | ||
103 | if ((bio.buf & 0xff) == 0xff) | ||
104 | { | ||
105 | if (bio_bytein(bio) != 0) | ||
106 | return 1; | ||
107 | bio.ct = 0; | ||
108 | } | ||
109 | return 0; | ||
110 | } | ||
111 | |||
112 | private static int bio_bytein(opj_bio bio) | ||
113 | { | ||
114 | bio.buf = (bio.buf << 8) & 0xffff; | ||
115 | bio.ct = bio.buf == 0xff00 ? 7 : 8; | ||
116 | if (bio.bp >= bio.end) | ||
117 | return 1; | ||
118 | bio.buf |= bio.bp++; | ||
119 | |||
120 | return 0; | ||
121 | } | ||
122 | |||
123 | private static int bio_byteout(opj_bio bio) | ||
124 | { | ||
125 | bio.buf = (bio.buf << 8) & 0xffff; | ||
126 | bio.ct = bio.buf == 0xff00 ? 7 : 8; | ||
127 | if (bio.bp >= bio.end) | ||
128 | return 1; | ||
129 | |||
130 | bio.bp = (byte)(bio.buf >> 8); | ||
131 | bio.bp++; | ||
132 | return 0; | ||
133 | } | ||
134 | |||
135 | private static void bio_putbit(opj_bio bio, int b) | ||
136 | { | ||
137 | if (bio.ct == 0) | ||
138 | bio_byteout(bio); | ||
139 | |||
140 | bio.ct--; | ||
141 | bio.buf |= (byte)(b << bio.ct); | ||
142 | } | ||
143 | |||
144 | private static int bio_getbit(opj_bio bio) | ||
145 | { | ||
146 | if (bio.ct == 0) | ||
147 | bio_bytein(bio); | ||
148 | bio.ct--; | ||
149 | |||
150 | return (int)((bio.buf >> bio.ct) & 1); | ||
151 | } | ||
152 | } | ||
153 | |||
154 | public struct opj_bio | ||
155 | { | ||
156 | public byte start; | ||
157 | public byte end; | ||
158 | public byte bp; | ||
159 | public uint buf; | ||
160 | public int ct; | ||
161 | } | ||
162 | } | ||