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1 | /* |
2 | Copyright 2005-2007 Adobe Systems Incorporated | |
3 | ||
4 | Use, modification and distribution are subject to the Boost Software License, | |
5 | Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at | |
6 | http://www.boost.org/LICENSE_1_0.txt). | |
7 | ||
8 | See http://opensource.adobe.com/gil for most recent version including documentation. | |
9 | */ | |
10 | ||
11 | /*************************************************************************************************/ | |
12 | ||
13 | #ifndef GIL_DYNAMICIMAGE_IMAGE_VIEWS_HPP | |
14 | #define GIL_DYNAMICIMAGE_IMAGE_VIEWS_HPP | |
15 | ||
16 | /*! | |
17 | /// \file | |
18 | /// \brief Methods for constructing any image views from other any image views | |
19 | /// \author Lubomir Bourdev and Hailin Jin \n | |
20 | /// Adobe Systems Incorporated | |
21 | /// \date 2005-2007 \n Last updated on January 31, 2007 | |
22 | /// Extends image view factory to runtime type-specified views (any_image_view) | |
23 | */ | |
24 | ||
25 | #include "any_image_view.hpp" | |
26 | #include "../../image_view_factory.hpp" | |
27 | ||
28 | namespace boost { namespace gil { | |
29 | ||
30 | namespace detail { | |
31 | template <typename Result> struct flipped_up_down_view_fn { | |
32 | typedef Result result_type; | |
33 | template <typename View> result_type operator()(const View& src) const { return result_type(flipped_up_down_view(src)); } | |
34 | }; | |
35 | template <typename Result> struct flipped_left_right_view_fn { | |
36 | typedef Result result_type; | |
37 | template <typename View> result_type operator()(const View& src) const { return result_type(flipped_left_right_view(src)); } | |
38 | }; | |
39 | template <typename Result> struct rotated90cw_view_fn { | |
40 | typedef Result result_type; | |
41 | template <typename View> result_type operator()(const View& src) const { return result_type(rotated90cw_view(src)); } | |
42 | }; | |
43 | template <typename Result> struct rotated90ccw_view_fn { | |
44 | typedef Result result_type; | |
45 | template <typename View> result_type operator()(const View& src) const { return result_type(rotated90ccw_view(src)); } | |
46 | }; | |
47 | template <typename Result> struct tranposed_view_fn { | |
48 | typedef Result result_type; | |
49 | template <typename View> result_type operator()(const View& src) const { return result_type(tranposed_view(src)); } | |
50 | }; | |
51 | template <typename Result> struct rotated180_view_fn { | |
52 | typedef Result result_type; | |
53 | template <typename View> result_type operator()(const View& src) const { return result_type(rotated180_view(src)); } | |
54 | }; | |
55 | template <typename Result> struct subimage_view_fn { | |
56 | typedef Result result_type; | |
57 | subimage_view_fn(const point2<std::ptrdiff_t>& topleft, const point2<std::ptrdiff_t>& dimensions) : _topleft(topleft), _size2(dimensions) {} | |
58 | point2<std::ptrdiff_t> _topleft,_size2; | |
59 | template <typename View> result_type operator()(const View& src) const { return result_type(subimage_view(src,_topleft,_size2)); } | |
60 | }; | |
61 | template <typename Result> struct subsampled_view_fn { | |
62 | typedef Result result_type; | |
63 | subsampled_view_fn(const point2<std::ptrdiff_t>& step) : _step(step) {} | |
64 | point2<std::ptrdiff_t> _step; | |
65 | template <typename View> result_type operator()(const View& src) const { return result_type(subsampled_view(src,_step)); } | |
66 | }; | |
67 | template <typename Result> struct nth_channel_view_fn { | |
68 | typedef Result result_type; | |
69 | nth_channel_view_fn(int n) : _n(n) {} | |
70 | int _n; | |
71 | template <typename View> result_type operator()(const View& src) const { return result_type(nth_channel_view(src,_n)); } | |
72 | }; | |
73 | template <typename DstP, typename Result, typename CC = default_color_converter> struct color_converted_view_fn { | |
74 | typedef Result result_type; | |
75 | color_converted_view_fn(CC cc = CC()): _cc(cc) {} | |
76 | ||
77 | template <typename View> result_type operator()(const View& src) const { return result_type(color_converted_view<DstP>(src, _cc)); } | |
78 | ||
79 | private: | |
80 | CC _cc; | |
81 | }; | |
82 | } // namespace detail | |
83 | ||
84 | ||
85 | /// \ingroup ImageViewTransformationsFlipUD | |
86 | template <typename ViewTypes> inline // Models MPL Random Access Container of models of ImageViewConcept | |
87 | typename dynamic_y_step_type<any_image_view<ViewTypes> >::type flipped_up_down_view(const any_image_view<ViewTypes>& src) { | |
88 | return apply_operation(src,detail::flipped_up_down_view_fn<typename dynamic_y_step_type<any_image_view<ViewTypes> >::type>()); | |
89 | } | |
90 | ||
91 | /// \ingroup ImageViewTransformationsFlipLR | |
92 | template <typename ViewTypes> inline // Models MPL Random Access Container of models of ImageViewConcept | |
93 | typename dynamic_x_step_type<any_image_view<ViewTypes> >::type flipped_left_right_view(const any_image_view<ViewTypes>& src) { | |
94 | return apply_operation(src,detail::flipped_left_right_view_fn<typename dynamic_x_step_type<any_image_view<ViewTypes> >::type>()); | |
95 | } | |
96 | ||
97 | /// \ingroup ImageViewTransformationsTransposed | |
98 | template <typename ViewTypes> inline // Models MPL Random Access Container of models of ImageViewConcept | |
99 | typename dynamic_xy_step_transposed_type<any_image_view<ViewTypes> >::type transposed_view(const any_image_view<ViewTypes>& src) { | |
100 | return apply_operation(src,detail::tranposed_view_fn<typename dynamic_xy_step_transposed_type<any_image_view<ViewTypes> >::type>()); | |
101 | } | |
102 | ||
103 | /// \ingroup ImageViewTransformations90CW | |
104 | template <typename ViewTypes> inline // Models MPL Random Access Container of models of ImageViewConcept | |
105 | typename dynamic_xy_step_transposed_type<any_image_view<ViewTypes> >::type rotated90cw_view(const any_image_view<ViewTypes>& src) { | |
106 | return apply_operation(src,detail::rotated90cw_view_fn<typename dynamic_xy_step_transposed_type<any_image_view<ViewTypes> >::type>()); | |
107 | } | |
108 | ||
109 | /// \ingroup ImageViewTransformations90CCW | |
110 | template <typename ViewTypes> inline // Models MPL Random Access Container of models of ImageViewConcept | |
111 | typename dynamic_xy_step_transposed_type<any_image_view<ViewTypes> >::type rotated90ccw_view(const any_image_view<ViewTypes>& src) { | |
112 | return apply_operation(src,detail::rotated90ccw_view_fn<typename dynamic_xy_step_transposed_type<any_image_view<ViewTypes> >::type>()); | |
113 | } | |
114 | ||
115 | /// \ingroup ImageViewTransformations180 | |
116 | template <typename ViewTypes> inline // Models MPL Random Access Container of models of ImageViewConcept | |
117 | typename dynamic_xy_step_type<any_image_view<ViewTypes> >::type rotated180_view(const any_image_view<ViewTypes>& src) { | |
118 | return apply_operation(src,detail::rotated180_view_fn<typename dynamic_xy_step_type<any_image_view<ViewTypes> >::type>()); | |
119 | } | |
120 | ||
121 | /// \ingroup ImageViewTransformationsSubimage | |
122 | template <typename ViewTypes> inline // Models MPL Random Access Container of models of ImageViewConcept | |
123 | any_image_view<ViewTypes> subimage_view(const any_image_view<ViewTypes>& src, const point2<std::ptrdiff_t>& topleft, const point2<std::ptrdiff_t>& dimensions) { | |
124 | return apply_operation(src,detail::subimage_view_fn<any_image_view<ViewTypes> >(topleft,dimensions)); | |
125 | } | |
126 | ||
127 | /// \ingroup ImageViewTransformationsSubimage | |
128 | template <typename ViewTypes> inline // Models MPL Random Access Container of models of ImageViewConcept | |
129 | any_image_view<ViewTypes> subimage_view(const any_image_view<ViewTypes>& src, int xMin, int yMin, int width, int height) { | |
130 | return apply_operation(src,detail::subimage_view_fn<any_image_view<ViewTypes> >(point2<std::ptrdiff_t>(xMin,yMin),point2<std::ptrdiff_t>(width,height))); | |
131 | } | |
132 | ||
133 | /// \ingroup ImageViewTransformationsSubsampled | |
134 | template <typename ViewTypes> inline // Models MPL Random Access Container of models of ImageViewConcept | |
135 | typename dynamic_xy_step_type<any_image_view<ViewTypes> >::type subsampled_view(const any_image_view<ViewTypes>& src, const point2<std::ptrdiff_t>& step) { | |
136 | return apply_operation(src,detail::subsampled_view_fn<typename dynamic_xy_step_type<any_image_view<ViewTypes> >::type>(step)); | |
137 | } | |
138 | ||
139 | /// \ingroup ImageViewTransformationsSubsampled | |
140 | template <typename ViewTypes> inline // Models MPL Random Access Container of models of ImageViewConcept | |
141 | typename dynamic_xy_step_type<any_image_view<ViewTypes> >::type subsampled_view(const any_image_view<ViewTypes>& src, int xStep, int yStep) { | |
142 | return apply_operation(src,detail::subsampled_view_fn<typename dynamic_xy_step_type<any_image_view<ViewTypes> >::type>(point2<std::ptrdiff_t>(xStep,yStep))); | |
143 | } | |
144 | ||
145 | namespace detail { | |
146 | template <typename View> struct get_nthchannel_type { typedef typename nth_channel_view_type<View>::type type; }; | |
147 | template <typename Views> struct views_get_nthchannel_type : public mpl::transform<Views, get_nthchannel_type<mpl::_1> > {}; | |
148 | } | |
149 | ||
150 | /// \ingroup ImageViewTransformationsNthChannel | |
151 | /// \brief Given a runtime source image view, returns the type of a runtime image view over a single channel of the source view | |
152 | template <typename ViewTypes> | |
153 | struct nth_channel_view_type<any_image_view<ViewTypes> > { | |
154 | typedef any_image_view<typename detail::views_get_nthchannel_type<ViewTypes>::type> type; | |
155 | }; | |
156 | ||
157 | /// \ingroup ImageViewTransformationsNthChannel | |
158 | template <typename ViewTypes> inline // Models MPL Random Access Container of models of ImageViewConcept | |
159 | typename nth_channel_view_type<any_image_view<ViewTypes> >::type nth_channel_view(const any_image_view<ViewTypes>& src, int n) { | |
160 | return apply_operation(src,detail::nth_channel_view_fn<typename nth_channel_view_type<any_image_view<ViewTypes> >::type>(n)); | |
161 | } | |
162 | ||
163 | namespace detail { | |
164 | template <typename View, typename DstP, typename CC> struct get_ccv_type : public color_converted_view_type<View, DstP, CC> {}; | |
165 | template <typename Views, typename DstP, typename CC> struct views_get_ccv_type : public mpl::transform<Views, get_ccv_type<mpl::_1,DstP,CC> > {}; | |
166 | } | |
167 | ||
168 | /// \ingroup ImageViewTransformationsColorConvert | |
169 | /// \brief Returns the type of a runtime-specified view, color-converted to a given pixel type with user specified color converter | |
170 | template <typename ViewTypes, typename DstP, typename CC> | |
171 | struct color_converted_view_type<any_image_view<ViewTypes>,DstP,CC> { | |
172 | typedef any_image_view<typename detail::views_get_ccv_type<ViewTypes, DstP, CC>::type> type; | |
173 | }; | |
174 | ||
175 | /// \ingroup ImageViewTransformationsColorConvert | |
176 | /// \brief overload of generic color_converted_view with user defined color-converter | |
177 | template <typename DstP, typename ViewTypes, typename CC> inline // Models MPL Random Access Container of models of ImageViewConcept | |
178 | typename color_converted_view_type<any_image_view<ViewTypes>, DstP, CC>::type color_converted_view(const any_image_view<ViewTypes>& src,CC cc) { | |
179 | return apply_operation(src,detail::color_converted_view_fn<DstP,typename color_converted_view_type<any_image_view<ViewTypes>, DstP, CC>::type >()); | |
180 | } | |
181 | ||
182 | /// \ingroup ImageViewTransformationsColorConvert | |
183 | /// \brief Returns the type of a runtime-specified view, color-converted to a given pixel type with the default coor converter | |
184 | template <typename ViewTypes, typename DstP> | |
185 | struct color_converted_view_type<any_image_view<ViewTypes>,DstP> { | |
186 | typedef any_image_view<typename detail::views_get_ccv_type<ViewTypes, DstP, default_color_converter>::type> type; | |
187 | }; | |
188 | ||
189 | /// \ingroup ImageViewTransformationsColorConvert | |
190 | /// \brief overload of generic color_converted_view with the default color-converter | |
191 | template <typename DstP, typename ViewTypes> inline // Models MPL Random Access Container of models of ImageViewConcept | |
192 | typename color_converted_view_type<any_image_view<ViewTypes>, DstP>::type color_converted_view(const any_image_view<ViewTypes>& src) { | |
193 | return apply_operation(src,detail::color_converted_view_fn<DstP,typename color_converted_view_type<any_image_view<ViewTypes>, DstP>::type >()); | |
194 | } | |
195 | ||
196 | ||
197 | /// \ingroup ImageViewTransformationsColorConvert | |
198 | /// \brief overload of generic color_converted_view with user defined color-converter | |
199 | /// These are workarounds for GCC 3.4, which thinks color_converted_view is ambiguous with the same method for templated views (in gil/image_view_factory.hpp) | |
200 | template <typename DstP, typename ViewTypes, typename CC> inline // Models MPL Random Access Container of models of ImageViewConcept | |
201 | typename color_converted_view_type<any_image_view<ViewTypes>, DstP, CC>::type any_color_converted_view(const any_image_view<ViewTypes>& src,CC cc) { | |
202 | return apply_operation(src,detail::color_converted_view_fn<DstP,typename color_converted_view_type<any_image_view<ViewTypes>, DstP, CC>::type >()); | |
203 | } | |
204 | ||
205 | /// \ingroup ImageViewTransformationsColorConvert | |
206 | /// \brief overload of generic color_converted_view with the default color-converter | |
207 | /// These are workarounds for GCC 3.4, which thinks color_converted_view is ambiguous with the same method for templated views (in gil/image_view_factory.hpp) | |
208 | template <typename DstP, typename ViewTypes> inline // Models MPL Random Access Container of models of ImageViewConcept | |
209 | typename color_converted_view_type<any_image_view<ViewTypes>, DstP>::type any_color_converted_view(const any_image_view<ViewTypes>& src) { | |
210 | return apply_operation(src,detail::color_converted_view_fn<DstP,typename color_converted_view_type<any_image_view<ViewTypes>, DstP>::type >()); | |
211 | } | |
212 | ||
213 | /// \} | |
214 | ||
215 | } } // namespace boost::gil | |
216 | ||
217 | #endif |