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3 Distributed under the Boost Software License, Version 1.0.
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9 Copyright 2005-2007 Adobe Systems Incorporated
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22 <TITLE>Generic Image Library: planar_pixel_iterator.hpp Source File
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40 <div class=
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41 <h1>planar_pixel_iterator.hpp
</h1><a href=
"g_i_l_0247.html">Go to the documentation of this file.
</a><div class=
"fragment"><pre class=
"fragment"><a name=
"l00001"></a>00001 <span class=
"comment">/*
</span>
42 <a name=
"l00002"></a>00002 <span class=
"comment"> Copyright
2005-
2007 Adobe Systems Incorporated
</span>
43 <a name=
"l00003"></a>00003 <span class=
"comment"> </span>
44 <a name=
"l00004"></a>00004 <span class=
"comment"> Use, modification and distribution are subject to the Boost Software License,
</span>
45 <a name=
"l00005"></a>00005 <span class=
"comment"> Version
1.0. (See accompanying file LICENSE_1_0.txt or copy at
</span>
46 <a name=
"l00006"></a>00006 <span class=
"comment"> http://www.boost.org/LICENSE_1_0.txt).
</span>
47 <a name=
"l00007"></a>00007 <span class=
"comment"></span>
48 <a name=
"l00008"></a>00008 <span class=
"comment"> See http://opensource.adobe.com/gil for most recent version including documentation.
</span>
49 <a name=
"l00009"></a>00009 <span class=
"comment">*/
</span>
50 <a name=
"l00010"></a>00010
51 <a name=
"l00011"></a>00011 <span class=
"comment">/*************************************************************************************************/
</span>
52 <a name=
"l00012"></a>00012
53 <a name=
"l00013"></a>00013 <span class=
"preprocessor">#ifndef GIL_PLANAR_PTR_H
</span>
54 <a name=
"l00014"></a>00014 <span class=
"preprocessor"></span><span class=
"preprocessor">#define GIL_PLANAR_PTR_H
</span>
55 <a name=
"l00015"></a>00015 <span class=
"preprocessor"></span>
56 <a name=
"l00024"></a>00024
57 <a name=
"l00025"></a>00025 <span class=
"preprocessor">#include
<cassert
></span>
58 <a name=
"l00026"></a>00026 <span class=
"preprocessor">#include
<iterator
></span>
59 <a name=
"l00027"></a>00027 <span class=
"preprocessor">#include
<boost/iterator/iterator_facade.hpp
></span>
60 <a name=
"l00028"></a>00028 <span class=
"preprocessor">#include
"<a class="code
" href="g_i_l_0094.html
" title="GIL configuration file.
">gil_config.hpp</a>"</span>
61 <a name=
"l00029"></a>00029 <span class=
"preprocessor">#include
"<a class="code
" href="pixel_8hpp.html
" title="pixel class and related utilities
">pixel.hpp</a>"</span>
62 <a name=
"l00030"></a>00030 <span class=
"preprocessor">#include
"<a class="code
" href="g_i_l_0260.html
" title="pixel step iterator
">step_iterator.hpp</a>"</span>
63 <a name=
"l00031"></a>00031
64 <a name=
"l00032"></a>00032 <span class=
"keyword">namespace
</span>boost {
<span class=
"keyword">namespace
</span>gil {
65 <a name=
"l00033"></a>00033
66 <a name=
"l00034"></a>00034 <span class=
"comment">//forward declaration (as this file is included in planar_pixel_reference.hpp)
</span>
67 <a name=
"l00035"></a>00035 <span class=
"keyword">template
</span> <<span class=
"keyword">typename
</span> ChannelReference,
<span class=
"keyword">typename
</span> ColorSpace
>
68 <a name=
"l00036"></a>00036 <span class=
"keyword">struct
</span>planar_pixel_reference;
69 <a name=
"l00037"></a>00037
70 <a name=
"l00042"></a>00042
71 <a name=
"l00046"></a>00046
72 <a name=
"l00054"></a>00054 <span class=
"keyword">template
</span> <<span class=
"keyword">typename
</span> ChannelPtr,
<span class=
"keyword">typename
</span> ColorSpace
>
73 <a name=
"l00055"></a><a class=
"code" href=
"g_i_l_0609.html">00055</a> <span class=
"keyword">struct
</span><a class=
"code" href=
"g_i_l_0609.html" title=
"An iterator over planar pixels. Models HomogeneousColorBaseConcept, PixelIteratorConcept...">planar_pixel_iterator
</a> :
<span class=
"keyword">public
</span> iterator_facade
<planar_pixel_iterator
<ChannelPtr,ColorSpace
>,
74 <a name=
"l00056"></a>00056 pixel
<typename std::iterator_traits
<ChannelPtr
>::value_type,layout
<ColorSpace
> >,
75 <a name=
"l00057"></a>00057 random_access_traversal_tag,
76 <a name=
"l00058"></a>00058 const planar_pixel_reference
<typename std::iterator_traits
<ChannelPtr
>::reference,ColorSpace
> >,
77 <a name=
"l00059"></a>00059 <span class=
"keyword">public
</span> detail::homogeneous_color_base
<ChannelPtr,layout
<ColorSpace
>,mpl::size
<ColorSpace
>::value
> {
78 <a name=
"l00060"></a>00060 <span class=
"keyword">private
</span>:
79 <a name=
"l00061"></a>00061 <span class=
"keyword">typedef
</span> iterator_facade
<planar_pixel_iterator
<ChannelPtr,ColorSpace
>,
80 <a name=
"l00062"></a>00062 <a class=
"code" href=
"g_i_l_0599.html" title=
"Represents a pixel value (a container of channels). Models: HomogeneousColorBaseValueConcept...">pixel
<typename std::iterator_traits
<ChannelPtr
>::value_type
</a>,
<a class=
"code" href=
"g_i_l_0567.html" title=
"Represents a color space and ordering of channels in memory.">layout
<ColorSpace
></a> >,
81 <a name=
"l00063"></a>00063 random_access_traversal_tag,
82 <a name=
"l00064"></a>00064 <span class=
"keyword">const
</span> <a class=
"code" href=
"g_i_l_0611.html" title=
"A reference proxy to a planar pixel. Models: HomogeneousColorBaseConcept, HomogeneousPixelConcept...">planar_pixel_reference
<typename std::iterator_traits
<ChannelPtr
>::reference
</a>,ColorSpace
> > parent_t;
83 <a name=
"l00065"></a>00065 <span class=
"keyword">typedef
</span> detail::homogeneous_color_base
<ChannelPtr,layout
<ColorSpace
>,mpl::size
<ColorSpace
>::value
> color_base_parent_t;
84 <a name=
"l00066"></a>00066 <span class=
"keyword">typedef
</span> <span class=
"keyword">typename
</span> std::iterator_traits
<ChannelPtr
>::value_type channel_t;
85 <a name=
"l00067"></a>00067 <span class=
"keyword">public
</span>:
86 <a name=
"l00068"></a>00068 <span class=
"keyword">typedef
</span> <span class=
"keyword">typename
</span> parent_t::value_type value_type;
87 <a name=
"l00069"></a>00069 <span class=
"keyword">typedef
</span> <span class=
"keyword">typename
</span> parent_t::reference reference;
88 <a name=
"l00070"></a>00070 <span class=
"keyword">typedef
</span> <span class=
"keyword">typename
</span> parent_t::difference_type difference_type;
89 <a name=
"l00071"></a>00071
90 <a name=
"l00072"></a>00072 <a class=
"code" href=
"g_i_l_0609.html" title=
"An iterator over planar pixels. Models HomogeneousColorBaseConcept, PixelIteratorConcept...">planar_pixel_iterator
</a>() : color_base_parent_t(
0) {}
91 <a name=
"l00073"></a>00073 <a class=
"code" href=
"g_i_l_0609.html" title=
"An iterator over planar pixels. Models HomogeneousColorBaseConcept, PixelIteratorConcept...">planar_pixel_iterator
</a>(
<span class=
"keywordtype">bool
</span>) {}
<span class=
"comment">// constructor that does not fill with zero (for performance)
</span>
92 <a name=
"l00074"></a>00074
93 <a name=
"l00075"></a>00075 <a class=
"code" href=
"g_i_l_0609.html" title=
"An iterator over planar pixels. Models HomogeneousColorBaseConcept, PixelIteratorConcept...">planar_pixel_iterator
</a>(
<span class=
"keyword">const
</span> ChannelPtr
& v0,
<span class=
"keyword">const
</span> ChannelPtr
& v1) : color_base_parent_t(v0,v1) {}
94 <a name=
"l00076"></a>00076 <a class=
"code" href=
"g_i_l_0609.html" title=
"An iterator over planar pixels. Models HomogeneousColorBaseConcept, PixelIteratorConcept...">planar_pixel_iterator
</a>(
<span class=
"keyword">const
</span> ChannelPtr
& v0,
<span class=
"keyword">const
</span> ChannelPtr
& v1,
<span class=
"keyword">const
</span> ChannelPtr
& v2) : color_base_parent_t(v0,v1,v2) {}
95 <a name=
"l00077"></a>00077 <a class=
"code" href=
"g_i_l_0609.html" title=
"An iterator over planar pixels. Models HomogeneousColorBaseConcept, PixelIteratorConcept...">planar_pixel_iterator
</a>(
<span class=
"keyword">const
</span> ChannelPtr
& v0,
<span class=
"keyword">const
</span> ChannelPtr
& v1,
<span class=
"keyword">const
</span> ChannelPtr
& v2,
<span class=
"keyword">const
</span> ChannelPtr
& v3) : color_base_parent_t(v0,v1,v2,v3) {}
96 <a name=
"l00078"></a>00078 <a class=
"code" href=
"g_i_l_0609.html" title=
"An iterator over planar pixels. Models HomogeneousColorBaseConcept, PixelIteratorConcept...">planar_pixel_iterator
</a>(
<span class=
"keyword">const
</span> ChannelPtr
& v0,
<span class=
"keyword">const
</span> ChannelPtr
& v1,
<span class=
"keyword">const
</span> ChannelPtr
& v2,
<span class=
"keyword">const
</span> ChannelPtr
& v3,
<span class=
"keyword">const
</span> ChannelPtr
& v4) : color_base_parent_t(v0,v1,v2,v3,v4) {}
97 <a name=
"l00079"></a>00079
98 <a name=
"l00080"></a>00080 <span class=
"keyword">template
</span> <<span class=
"keyword">typename
</span> IC1,
<span class=
"keyword">typename
</span> C1
>
99 <a name=
"l00081"></a>00081 <a class=
"code" href=
"g_i_l_0609.html" title=
"An iterator over planar pixels. Models HomogeneousColorBaseConcept, PixelIteratorConcept...">planar_pixel_iterator
</a>(
<span class=
"keyword">const
</span> <a class=
"code" href=
"g_i_l_0609.html" title=
"An iterator over planar pixels. Models HomogeneousColorBaseConcept, PixelIteratorConcept...">planar_pixel_iterator
<IC1,C1
></a>& ptr) : color_base_parent_t(ptr) {}
100 <a name=
"l00082"></a>00082
101 <a name=
"l00083"></a>00083
102 <a name=
"l00087"></a>00087 <span class=
"keyword">template
</span> <<span class=
"keyword">typename
</span> P
>
103 <a name=
"l00088"></a><a class=
"code" href=
"g_i_l_0609.html#340b95bc4afd461df05de5816763e8f8">00088</a> <a class=
"code" href=
"g_i_l_0609.html" title=
"An iterator over planar pixels. Models HomogeneousColorBaseConcept, PixelIteratorConcept...">planar_pixel_iterator
</a>(P* pix) : color_base_parent_t(pix, true) {
104 <a name=
"l00089"></a>00089 function_requires
<PixelsCompatibleConcept
<P,value_type
> >();
105 <a name=
"l00090"></a>00090 }
106 <a name=
"l00091"></a>00091
107 <a name=
"l00092"></a>00092 <span class=
"keyword">struct
</span>address_of {
<span class=
"keyword">template
</span> <<span class=
"keyword">typename
</span> T
> T* operator()(T
& t) {
<span class=
"keywordflow">return
</span> &t; } };
108 <a name=
"l00093"></a>00093 <span class=
"keyword">template
</span> <<span class=
"keyword">typename
</span> P
>
109 <a name=
"l00094"></a>00094 planar_pixel_iterator
& operator=(P* pix) {
110 <a name=
"l00095"></a>00095 function_requires
<PixelsCompatibleConcept
<P,value_type
> >();
111 <a name=
"l00096"></a>00096 static_transform(*pix,*
<span class=
"keyword">this
</span>, address_of());
112 <a name=
"l00097"></a>00097
113 <a name=
"l00098"></a>00098 <span class=
"comment">// PERFORMANCE_CHECK: Compare to this:
</span>
114 <a name=
"l00099"></a>00099 <span class=
"comment">//this-
>template semantic_at_c
<0>()=
&pix-
>template semantic_at_c
<0>();
</span>
115 <a name=
"l00100"></a>00100 <span class=
"comment">//this-
>template semantic_at_c
<1>()=
&pix-
>template semantic_at_c
<1>();
</span>
116 <a name=
"l00101"></a>00101 <span class=
"comment">//this-
>template semantic_at_c
<2>()=
&pix-
>template semantic_at_c
<2>();
</span>
117 <a name=
"l00102"></a>00102 <span class=
"keywordflow">return
</span> *
<span class=
"keyword">this
</span>;
118 <a name=
"l00103"></a>00103 }
119 <a name=
"l00104"></a>00104
120 <a name=
"l00107"></a><a class=
"code" href=
"g_i_l_0609.html#de1279c4ed222b6efb0867c038765ea1">00107</a> reference
<a class=
"code" href=
"g_i_l_0609.html#de1279c4ed222b6efb0867c038765ea1">operator[]
</a>(difference_type d)
<span class=
"keyword"> const
</span>{
<span class=
"keywordflow">return
</span> memunit_advanced_ref(*
<span class=
"keyword">this
</span>,d*
<span class=
"keyword">sizeof
</span>(channel_t));}
121 <a name=
"l00108"></a>00108
122 <a name=
"l00109"></a>00109 reference operator-
>()
<span class=
"keyword"> const
</span>{
<span class=
"keywordflow">return
</span> **
<span class=
"keyword">this
</span>; }
123 <a name=
"l00110"></a>00110
124 <a name=
"l00111"></a>00111 <span class=
"comment">// PERFORMANCE_CHECK: Remove?
</span>
125 <a name=
"l00112"></a>00112 <span class=
"keywordtype">bool
</span> operator
< (
<span class=
"keyword">const
</span> planar_pixel_iterator
& ptr)
<span class=
"keyword"> const
</span>{
<span class=
"keywordflow">return
</span> at_c
<0>(*this)
< at_c
<0>(ptr); }
126 <a name=
"l00113"></a>00113 <span class=
"keywordtype">bool
</span> operator!=(
<span class=
"keyword">const
</span> planar_pixel_iterator
& ptr)
<span class=
"keyword"> const
</span>{
<span class=
"keywordflow">return
</span> at_c
<0>(*this)!=at_c
<0>(ptr); }
127 <a name=
"l00114"></a>00114 <span class=
"keyword">private
</span>:
128 <a name=
"l00115"></a>00115 <span class=
"keyword">friend
</span> <span class=
"keyword">class
</span>boost::iterator_core_access;
129 <a name=
"l00116"></a>00116
130 <a name=
"l00117"></a>00117 <span class=
"keywordtype">void
</span> increment() { static_transform(*
<span class=
"keyword">this
</span>,*
<span class=
"keyword">this
</span>,detail::inc
<ChannelPtr
>()); }
131 <a name=
"l00118"></a>00118 <span class=
"keywordtype">void
</span> decrement() { static_transform(*
<span class=
"keyword">this
</span>,*
<span class=
"keyword">this
</span>,detail::dec
<ChannelPtr
>()); }
132 <a name=
"l00119"></a>00119 <span class=
"keywordtype">void
</span> advance(ptrdiff_t d) { static_transform(*
<span class=
"keyword">this
</span>,*
<span class=
"keyword">this
</span>,std::bind2nd(detail::plus_asymmetric
<ChannelPtr,ptrdiff_t
>(),d)); }
133 <a name=
"l00120"></a>00120 reference dereference()
<span class=
"keyword"> const
</span>{
<span class=
"keywordflow">return
</span> this-
><span class=
"keyword">template
</span> deref
<reference
>(); }
134 <a name=
"l00121"></a>00121
135 <a name=
"l00122"></a>00122 ptrdiff_t distance_to(
<span class=
"keyword">const
</span> planar_pixel_iterator
& it)
<span class=
"keyword"> const
</span>{
<span class=
"keywordflow">return
</span> at_c
<0>(it)-at_c
<0>(*
<span class=
"keyword">this
</span>); }
136 <a name=
"l00123"></a>00123 <span class=
"keywordtype">bool
</span> <a class=
"code" href=
"g_i_l_0214.html#g4ed3cf71cb0fbf435d1389df8567a4e5" title=
"std::equal(I1,I1,I2) with I1 and I2 being a iterator_from_2d">equal
</a>(
<span class=
"keyword">const
</span> planar_pixel_iterator
& it)
<span class=
"keyword"> const
</span>{
<span class=
"keywordflow">return
</span> at_c
<0>(*this)==at_c
<0>(it); }
137 <a name=
"l00124"></a>00124 };
138 <a name=
"l00125"></a>00125
139 <a name=
"l00126"></a>00126 <span class=
"keyword">namespace
</span>detail {
140 <a name=
"l00127"></a>00127 <span class=
"keyword">template
</span> <<span class=
"keyword">typename
</span> IC
> <span class=
"keyword">struct
</span>channel_iterator_is_mutable :
<span class=
"keyword">public
</span> mpl::true_ {};
141 <a name=
"l00128"></a>00128 <span class=
"keyword">template
</span> <<span class=
"keyword">typename
</span> T
> <span class=
"keyword">struct
</span>channel_iterator_is_mutable
<const T*
> :
<span class=
"keyword">public
</span> mpl::false_ {};
142 <a name=
"l00129"></a>00129 }
143 <a name=
"l00130"></a>00130
144 <a name=
"l00131"></a>00131 <span class=
"keyword">template
</span> <<span class=
"keyword">typename
</span> IC,
<span class=
"keyword">typename
</span> C
>
145 <a name=
"l00132"></a>00132 <span class=
"keyword">struct
</span>const_iterator_type
<planar_pixel_iterator
<IC,C
> > {
146 <a name=
"l00133"></a>00133 <span class=
"keyword">private
</span>:
147 <a name=
"l00134"></a>00134 <span class=
"keyword">typedef
</span> <span class=
"keyword">typename
</span> std::iterator_traits
<IC
>::value_type channel_t;
148 <a name=
"l00135"></a>00135 <span class=
"keyword">public
</span>:
149 <a name=
"l00136"></a>00136 <span class=
"keyword">typedef
</span> planar_pixel_iterator
<typename channel_traits
<channel_t
>::const_pointer,C
> type;
150 <a name=
"l00137"></a>00137 };
151 <a name=
"l00138"></a>00138
152 <a name=
"l00139"></a>00139 <span class=
"comment">// The default implementation when the iterator is a C pointer is to use the standard constness semantics
</span>
153 <a name=
"l00140"></a>00140 <span class=
"keyword">template
</span> <<span class=
"keyword">typename
</span> IC,
<span class=
"keyword">typename
</span> C
>
154 <a name=
"l00141"></a>00141 <span class=
"keyword">struct
</span>iterator_is_mutable
<planar_pixel_iterator
<IC,C
> > :
<span class=
"keyword">public
</span> detail::channel_iterator_is_mutable
<IC
> {};
155 <a name=
"l00142"></a>00142
156 <a name=
"l00144"></a>00144 <span class=
"comment">// ColorBasedConcept
</span>
157 <a name=
"l00146"></a>00146 <span class=
"comment"></span>
158 <a name=
"l00147"></a>00147 <span class=
"keyword">template
</span> <<span class=
"keyword">typename
</span> IC,
<span class=
"keyword">typename
</span> C,
<span class=
"keywordtype">int
</span> K
>
159 <a name=
"l00148"></a>00148 <span class=
"keyword">struct
</span>kth_element_type
<planar_pixel_iterator
<IC,C
>, K
> {
160 <a name=
"l00149"></a>00149 <span class=
"keyword">typedef
</span> IC type;
161 <a name=
"l00150"></a>00150 };
162 <a name=
"l00151"></a>00151
163 <a name=
"l00152"></a>00152 <span class=
"keyword">template
</span> <<span class=
"keyword">typename
</span> IC,
<span class=
"keyword">typename
</span> C,
<span class=
"keywordtype">int
</span> K
>
164 <a name=
"l00153"></a>00153 <span class=
"keyword">struct
</span>kth_element_reference_type
<planar_pixel_iterator
<IC,C
>, K
> :
<span class=
"keyword">public
</span> add_reference
<IC
> {};
165 <a name=
"l00154"></a>00154
166 <a name=
"l00155"></a>00155 <span class=
"keyword">template
</span> <<span class=
"keyword">typename
</span> IC,
<span class=
"keyword">typename
</span> C,
<span class=
"keywordtype">int
</span> K
>
167 <a name=
"l00156"></a>00156 <span class=
"keyword">struct
</span>kth_element_const_reference_type
<planar_pixel_iterator
<IC,C
>, K
> :
<span class=
"keyword">public
</span> add_reference
<typename add_const
<IC
>::type
> {};
168 <a name=
"l00157"></a>00157
169 <a name=
"l00159"></a>00159 <span class=
"comment">// HomogeneousPixelBasedConcept
</span>
170 <a name=
"l00161"></a>00161 <span class=
"comment"></span>
171 <a name=
"l00162"></a>00162 <span class=
"keyword">template
</span> <<span class=
"keyword">typename
</span> IC,
<span class=
"keyword">typename
</span> C
>
172 <a name=
"l00163"></a>00163 <span class=
"keyword">struct
</span>color_space_type
<planar_pixel_iterator
<IC,C
> > {
173 <a name=
"l00164"></a>00164 <span class=
"keyword">typedef
</span> C type;
174 <a name=
"l00165"></a>00165 };
175 <a name=
"l00166"></a>00166
176 <a name=
"l00167"></a>00167 <span class=
"keyword">template
</span> <<span class=
"keyword">typename
</span> IC,
<span class=
"keyword">typename
</span> C
>
177 <a name=
"l00168"></a>00168 <span class=
"keyword">struct
</span>channel_mapping_type
<planar_pixel_iterator
<IC,C
> > :
<span class=
"keyword">public
</span> channel_mapping_type
<typename planar_pixel_iterator
<IC,C
>::value_type
> {};
178 <a name=
"l00169"></a>00169
179 <a name=
"l00170"></a>00170 <span class=
"keyword">template
</span> <<span class=
"keyword">typename
</span> IC,
<span class=
"keyword">typename
</span> C
>
180 <a name=
"l00171"></a>00171 <span class=
"keyword">struct
</span>is_planar
<planar_pixel_iterator
<IC,C
> > :
<span class=
"keyword">public
</span> mpl::true_ {};
181 <a name=
"l00172"></a>00172
182 <a name=
"l00173"></a>00173 <span class=
"keyword">template
</span> <<span class=
"keyword">typename
</span> IC,
<span class=
"keyword">typename
</span> C
>
183 <a name=
"l00174"></a>00174 <span class=
"keyword">struct
</span>channel_type
<planar_pixel_iterator
<IC,C
> > {
184 <a name=
"l00175"></a>00175 <span class=
"keyword">typedef
</span> <span class=
"keyword">typename
</span> std::iterator_traits
<IC
>::value_type type;
185 <a name=
"l00176"></a>00176 };
186 <a name=
"l00177"></a>00177
187 <a name=
"l00179"></a>00179 <span class=
"comment">// MemoryBasedIteratorConcept
</span>
188 <a name=
"l00181"></a>00181 <span class=
"comment"></span>
189 <a name=
"l00182"></a>00182 <span class=
"keyword">template
</span> <<span class=
"keyword">typename
</span> IC,
<span class=
"keyword">typename
</span> C
>
190 <a name=
"l00183"></a>00183 <span class=
"keyword">inline
</span> std::ptrdiff_t memunit_step(
<span class=
"keyword">const
</span> planar_pixel_iterator
<IC,C
>&) {
<span class=
"keywordflow">return
</span> <span class=
"keyword">sizeof
</span>(
<span class=
"keyword">typename
</span> std::iterator_traits
<IC
>::value_type); }
191 <a name=
"l00184"></a>00184
192 <a name=
"l00185"></a>00185 <span class=
"keyword">template
</span> <<span class=
"keyword">typename
</span> IC,
<span class=
"keyword">typename
</span> C
>
193 <a name=
"l00186"></a>00186 <span class=
"keyword">inline
</span> std::ptrdiff_t memunit_distance(
<span class=
"keyword">const
</span> planar_pixel_iterator
<IC,C
>& p1,
<span class=
"keyword">const
</span> planar_pixel_iterator
<IC,C
>& p2) {
194 <a name=
"l00187"></a>00187 <span class=
"keywordflow">return
</span> memunit_distance(at_c
<0>(p1),at_c
<0>(p2));
195 <a name=
"l00188"></a>00188 }
196 <a name=
"l00189"></a>00189
197 <a name=
"l00190"></a>00190 <span class=
"keyword">template
</span> <<span class=
"keyword">typename
</span> IC
>
198 <a name=
"l00191"></a>00191 <span class=
"keyword">struct
</span>memunit_advance_fn {
199 <a name=
"l00192"></a>00192 memunit_advance_fn(std::ptrdiff_t diff) : _diff(diff) {}
200 <a name=
"l00193"></a>00193 IC operator()(
<span class=
"keyword">const
</span> IC
& p)
<span class=
"keyword"> const
</span>{
<span class=
"keywordflow">return
</span> memunit_advanced(p,_diff); }
201 <a name=
"l00194"></a>00194
202 <a name=
"l00195"></a>00195 std::ptrdiff_t _diff;
203 <a name=
"l00196"></a>00196 };
204 <a name=
"l00197"></a>00197
205 <a name=
"l00198"></a>00198 <span class=
"keyword">template
</span> <<span class=
"keyword">typename
</span> IC,
<span class=
"keyword">typename
</span> C
>
206 <a name=
"l00199"></a>00199 <span class=
"keyword">inline
</span> <span class=
"keywordtype">void
</span> memunit_advance(planar_pixel_iterator
<IC,C
>& p, std::ptrdiff_t diff) {
207 <a name=
"l00200"></a>00200 static_transform(p, p, memunit_advance_fn
<IC
>(diff));
208 <a name=
"l00201"></a>00201 }
209 <a name=
"l00202"></a>00202
210 <a name=
"l00203"></a>00203 <span class=
"keyword">template
</span> <<span class=
"keyword">typename
</span> IC,
<span class=
"keyword">typename
</span> C
>
211 <a name=
"l00204"></a>00204 <span class=
"keyword">inline
</span> planar_pixel_iterator
<IC,C
> memunit_advanced(
<span class=
"keyword">const
</span> planar_pixel_iterator
<IC,C
>& p, std::ptrdiff_t diff) {
212 <a name=
"l00205"></a>00205 planar_pixel_iterator
<IC,C
> ret=p;
213 <a name=
"l00206"></a>00206 memunit_advance(ret, diff);
214 <a name=
"l00207"></a>00207 <span class=
"keywordflow">return
</span> ret;
215 <a name=
"l00208"></a>00208 }
216 <a name=
"l00209"></a>00209
217 <a name=
"l00210"></a>00210 <span class=
"keyword">template
</span> <<span class=
"keyword">typename
</span> ChannelPtr,
<span class=
"keyword">typename
</span> ColorSpace
>
218 <a name=
"l00211"></a>00211 <span class=
"keyword">inline
</span> planar_pixel_reference
<typename std::iterator_traits
<ChannelPtr
>::reference,ColorSpace
>
219 <a name=
"l00212"></a>00212 memunit_advanced_ref(
<span class=
"keyword">const
</span> planar_pixel_iterator
<ChannelPtr,ColorSpace
>& ptr, std::ptrdiff_t diff) {
220 <a name=
"l00213"></a>00213 <span class=
"keywordflow">return
</span> planar_pixel_reference
<typename std::iterator_traits
<ChannelPtr
>::reference,ColorSpace
>(ptr, diff);
221 <a name=
"l00214"></a>00214 }
222 <a name=
"l00215"></a>00215
223 <a name=
"l00217"></a>00217 <span class=
"comment">// HasDynamicXStepTypeConcept
</span>
224 <a name=
"l00219"></a>00219 <span class=
"comment"></span>
225 <a name=
"l00220"></a>00220 <span class=
"keyword">template
</span> <<span class=
"keyword">typename
</span> IC,
<span class=
"keyword">typename
</span> C
>
226 <a name=
"l00221"></a>00221 <span class=
"keyword">struct
</span>dynamic_x_step_type
<planar_pixel_iterator
<IC,C
> > {
227 <a name=
"l00222"></a>00222 <span class=
"keyword">typedef
</span> memory_based_step_iterator
<planar_pixel_iterator
<IC,C
> > type;
228 <a name=
"l00223"></a>00223 };
229 <a name=
"l00224"></a>00224
230 <a name=
"l00225"></a>00225 } }
<span class=
"comment">// namespace boost::gil
</span>
231 <a name=
"l00226"></a>00226
232 <a name=
"l00227"></a>00227 <span class=
"preprocessor">#endif
</span>
234 <hr size=
"1"><address style=
"text-align: right;"><small>Generated on Sat May
2 13:
50:
14 2009 for Generic Image Library by
235 <a href=
"http://www.doxygen.org/index.html">
236 <img src=
"doxygen.png" alt=
"doxygen" align=
"middle" border=
"0"></a> 1.5.6 </small></address>