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
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
|
/*************************************************************************
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* Copyright 2000, 2010 Oracle and/or its affiliates.
*
* OpenOffice.org - a multi-platform office productivity suite
*
* This file is part of OpenOffice.org.
*
* OpenOffice.org is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License version 3
* only, as published by the Free Software Foundation.
*
* OpenOffice.org 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 version 3 for more details
* (a copy is included in the LICENSE file that accompanied this code).
*
* You should have received a copy of the GNU Lesser General Public License
* version 3 along with OpenOffice.org. If not, see
* <http://www.openoffice.org/license.html>
* for a copy of the LGPLv3 License.
*
************************************************************************/
#ifndef INCLUDED_BASEBMP_GREYLEVELFORMATS_HXX
#define INCLUDED_BASEBMP_GREYLEVELFORMATS_HXX
#include <basebmp/color.hxx>
#include <basebmp/colortraits.hxx>
#include <basebmp/accessor.hxx>
#include <basebmp/pixeliterator.hxx>
#include <basebmp/packedpixeliterator.hxx>
#include <basebmp/pixelformatadapters.hxx>
#include <basebmp/metafunctions.hxx>
#include <vigra/numerictraits.hxx>
#include <vigra/metaprogramming.hxx>
#include <functional>
namespace basebmp
{
template< typename PixelType,
typename ColorType,
int UsedRange > struct GreylevelGetter :
public std::unary_function<PixelType, ColorType>
{
ColorType operator()( PixelType const& c ) const
{
return ColorTraits<ColorType>::fromGreyscale(
vigra::NumericTraits<PixelType>::toPromote(c) *
vigra::NumericTraits<PixelType>::maxConst / UsedRange );
}
};
template< typename PixelType,
typename ColorType,
int UsedRange > struct GreylevelSetter :
public std::unary_function<ColorType, PixelType>
{
PixelType operator()( ColorType const& c ) const
{
return vigra::NumericTraits<PixelType>::toPromote(
ColorTraits<ColorType>::toGreyscale(c)) *
UsedRange /
vigra::NumericTraits<PixelType>::maxConst;
}
};
//-----------------------------------------------------------------------------
template< class Iterator,
class Accessor,
int UsedRange > struct PixelFormatTraitsTemplate_Greylevel
{
typedef typename Iterator::value_type pixel_type;
typedef GreylevelGetter<pixel_type,
Color,
UsedRange> getter_type;
typedef GreylevelSetter<pixel_type,
Color,
UsedRange> setter_type;
typedef Iterator iterator_type;
typedef Accessor raw_accessor_type;
typedef AccessorSelector<
getter_type,
setter_type > accessor_selector;
};
template< int BitsPerPixel,
bool MsbFirst > struct PixelFormatTraitsTemplate_PackedGreylevel :
public PixelFormatTraitsTemplate_Greylevel<
PackedPixelIterator< sal_uInt8,
BitsPerPixel,
true >,
NonStandardAccessor< sal_uInt8 >,
(1UL << BitsPerPixel)-1 >
{};
//-----------------------------------------------------------------------------
// 1bpp MSB
typedef PixelFormatTraitsTemplate_PackedGreylevel<1, true> PixelFormatTraits_GREY1_MSB;
// 1bpp LSB
typedef PixelFormatTraitsTemplate_PackedGreylevel<1, false> PixelFormatTraits_GREY1_LSB;
BASEBMP_SPECIALIZE_ACCESSORTRAITS(PixelFormatTraits_GREY1_MSB::getter_type,
PixelFormatTraits_GREY1_MSB::setter_type);
// 4bpp MSB
typedef PixelFormatTraitsTemplate_PackedGreylevel<4, true> PixelFormatTraits_GREY4_MSB;
// 4bpp LSB
typedef PixelFormatTraitsTemplate_PackedGreylevel<4, false> PixelFormatTraits_GREY4_LSB;
BASEBMP_SPECIALIZE_ACCESSORTRAITS(PixelFormatTraits_GREY4_MSB::getter_type,
PixelFormatTraits_GREY4_MSB::setter_type);
// 8bpp
typedef PixelFormatTraitsTemplate_Greylevel<
PixelIterator< sal_uInt8 >,
StandardAccessor< sal_uInt8 >,
255 > PixelFormatTraits_GREY8;
BASEBMP_SPECIALIZE_ACCESSORTRAITS(PixelFormatTraits_GREY8::getter_type,
PixelFormatTraits_GREY8::setter_type);
} // namespace basebmp
#endif /* INCLUDED_BASEBMP_GREYLEVELFORMATS_HXX */
|
