blob: 543432b65d543d7c09b59b5ed384991c59aca9cf (
plain)
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
48
49
50
51
52
53
54
|
//----------------------------------------------------------------------------
// Anti-Grain Geometry - Version 2.3
// Copyright (C) 2002-2005 Maxim Shemanarev (http://www.antigrain.com)
//
// Permission to copy, use, modify, sell and distribute this software
// is granted provided this copyright notice appears in all copies.
// This software is provided "as is" without express or implied
// warranty, and with no claim as to its suitability for any purpose.
//
//----------------------------------------------------------------------------
// Contact: mcseem@antigrain.com
// mcseemagg@yahoo.com
// http://www.antigrain.com
//----------------------------------------------------------------------------
#ifndef AGG_BITSET_ITERATOR_INCLUDED
#define AGG_BITSET_ITERATOR_INCLUDED
#include "agg_basics.h"
namespace agg
{
class bitset_iterator
{
public:
bitset_iterator(const int8u* bits, unsigned offset = 0) :
m_bits(bits + (offset >> 3)),
m_mask(0x80 >> (offset & 7))
{}
void operator ++ ()
{
m_mask >>= 1;
if(m_mask == 0)
{
++m_bits;
m_mask = 0x80;
}
}
unsigned bit() const
{
return (*m_bits) & m_mask;
}
private:
const int8u* m_bits;
int8u m_mask;
};
}
#endif
|
