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Diffstat (limited to 'OpenSim/Framework/OpenJpeg/int_.cs')
-rw-r--r--OpenSim/Framework/OpenJpeg/int_.cs142
1 files changed, 84 insertions, 58 deletions
diff --git a/OpenSim/Framework/OpenJpeg/int_.cs b/OpenSim/Framework/OpenJpeg/int_.cs
index dc71728..07321b5 100644
--- a/OpenSim/Framework/OpenJpeg/int_.cs
+++ b/OpenSim/Framework/OpenJpeg/int_.cs
@@ -1,58 +1,84 @@
1using System; 1/*
2using System.Collections.Generic; 2 * Copyright (c) Contributors, http://opensimulator.org/
3using System.Text; 3 * See CONTRIBUTORS.TXT for a full list of copyright holders.
4 4 *
5namespace OpenSim.Framework.OpenJpeg 5 * Redistribution and use in source and binary forms, with or without
6{ 6 * modification, are permitted provided that the following conditions are met:
7 public static class int_ 7 * * Redistributions of source code must retain the above copyright
8 { 8 * notice, this list of conditions and the following disclaimer.
9 public static int int_min(int a, int b) 9 * * Redistributions in binary form must reproduce the above copyright
10 { 10 * notice, this list of conditions and the following disclaimer in the
11 return a < b ? a : b; 11 * documentation and/or other materials provided with the distribution.
12 } 12 * * Neither the name of the OpenSimulator Project nor the
13 13 * names of its contributors may be used to endorse or promote products
14 public static int int_max(int a, int b) 14 * derived from this software without specific prior written permission.
15 { 15 *
16 return (a > b) ? a : b; 16 * THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY
17 } 17 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
18 18 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
19 public static int int_clamp(int a, int min, int max) 19 * DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
20 { 20 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
21 if (a < min) 21 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
22 return min; 22 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
23 if (a > max) 23 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 return max; 24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
25 25 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 return a; 26 */
27 } 27
28 28using System;
29 public static int int_abs(int a) 29using System.Collections.Generic;
30 { 30using System.Text;
31 return a < 0 ? -a : a; 31
32 } 32namespace OpenSim.Framework.OpenJpeg
33 33{
34 public static int int_ceildiv(int a, int b) 34 public static class int_
35 { 35 {
36 return (a + b - 1) / b; 36 public static int int_min(int a, int b)
37 } 37 {
38 38 return a < b ? a : b;
39 public static int int_ceildivpow2(int a, int b) 39 }
40 { 40
41 return (a + (1 << b) - 1) >> b; 41 public static int int_max(int a, int b)
42 } 42 {
43 43 return (a > b) ? a : b;
44 public static int int_floordivpow2(int a, int b) 44 }
45 { 45
46 return a >> b; 46 public static int int_clamp(int a, int min, int max)
47 } 47 {
48 48 if (a < min)
49 public static int int_floorlog2(int a) 49 return min;
50 { 50 if (a > max)
51 for (int l=0; a > 1; l++) 51 return max;
52 a >>= 1; 52
53 53 return a;
54 return 1; 54 }
55 } 55
56 56 public static int int_abs(int a)
57 } 57 {
58} 58 return a < 0 ? -a : a;
59 }
60
61 public static int int_ceildiv(int a, int b)
62 {
63 return (a + b - 1) / b;
64 }
65
66 public static int int_ceildivpow2(int a, int b)
67 {
68 return (a + (1 << b) - 1) >> b;
69 }
70
71 public static int int_floordivpow2(int a, int b)
72 {
73 return a >> b;
74 }
75
76 public static int int_floorlog2(int a)
77 {
78 for (int l=0; a > 1; l++)
79 a >>= 1;
80
81 return 1;
82 }
83 }
84}