1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
|
/**
* @file llpredicate.cpp
* @brief abstraction for filtering objects by predicates, with arbitrary boolean expressions
*
* $LicenseInfo:firstyear=2008&license=viewerlgpl$
* Second Life Viewer Source Code
* Copyright (C) 2010, Linden Research, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation;
* version 2.1 of the License only.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
* Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA
* $/LicenseInfo$
*/
#include "linden_common.h"
#include "llpredicate.h"
namespace LLPredicate
{
EmptyRule make_rule() { return EmptyRule(); }
int predicateFlagsFromValue(int value)
{
llassert(value < 5);
static const int predicates[5] =
{
0xAAAAaaaa, // 10101010101010101010101010101010
0xCCCCcccc, // 11001100110011001100110011001100
0xF0F0F0F0, // 11110000111100001111000011110000
0xFF00FF00, // 11111111000000001111111100000000
0xFFFF0000 // 11111111111111110000000000000000
};
return predicates[value];
}
}
|
