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| <h1>jpeg_io.hpp</h1><a href="jpeg__io_8hpp.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/*</span> |
| <a name="l00002"></a>00002 <span class="comment"> Copyright 2005-2007 Adobe Systems Incorporated</span> |
| <a name="l00003"></a>00003 <span class="comment"> </span> |
| <a name="l00004"></a>00004 <span class="comment"> Use, modification and distribution are subject to the Boost Software License,</span> |
| <a name="l00005"></a>00005 <span class="comment"> Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at</span> |
| <a name="l00006"></a>00006 <span class="comment"> http://www.boost.org/LICENSE_1_0.txt).</span> |
| <a name="l00007"></a>00007 <span class="comment"></span> |
| <a name="l00008"></a>00008 <span class="comment"> See http://opensource.adobe.com/gil for most recent version including documentation.</span> |
| <a name="l00009"></a>00009 <span class="comment">*/</span> |
| <a name="l00010"></a>00010 |
| <a name="l00011"></a>00011 <span class="comment">/*************************************************************************************************/</span> |
| <a name="l00012"></a>00012 |
| <a name="l00013"></a>00013 <span class="preprocessor">#ifndef GIL_JPEG_IO_H</span> |
| <a name="l00014"></a>00014 <span class="preprocessor"></span><span class="preprocessor">#define GIL_JPEG_IO_H</span> |
| <a name="l00015"></a>00015 <span class="preprocessor"></span> |
| <a name="l00022"></a>00022 |
| <a name="l00023"></a>00023 <span class="preprocessor">#include <cstdio></span> |
| <a name="l00024"></a>00024 <span class="preprocessor">#include <algorithm></span> |
| <a name="l00025"></a>00025 <span class="preprocessor">#include <string></span> |
| <a name="l00026"></a>00026 <span class="preprocessor">#include <boost/static_assert.hpp></span> |
| <a name="l00027"></a>00027 <span class="preprocessor">#include <boost/shared_ptr.hpp></span> |
| <a name="l00028"></a>00028 <span class="keyword">extern</span> <span class="stringliteral">"C"</span> { |
| <a name="l00029"></a>00029 <span class="preprocessor">#include <jpeglib.h></span> |
| <a name="l00030"></a>00030 } |
| <a name="l00031"></a>00031 <span class="preprocessor">#include "<a class="code" href="io__error_8hpp.html" title="Handle input-output errors.">io_error.hpp</a>"</span> |
| <a name="l00032"></a>00032 <span class="preprocessor">#include "<a class="code" href="g_i_l_0235.html" title="Internal support for reading and writing JPEG files.">jpeg_io_private.hpp</a>"</span> |
| <a name="l00033"></a>00033 |
| <a name="l00034"></a>00034 <span class="keyword">namespace </span>boost { <span class="keyword">namespace </span>gil { |
| <a name="l00035"></a>00035 |
| <a name="l00038"></a>00038 <span class="keyword">template</span> <<span class="keyword">typename</span> View> |
| <a name="l00039"></a><a class="code" href="g_i_l_0555.html">00039</a> <span class="keyword">struct </span><a class="code" href="g_i_l_0555.html" title="Determines whether the given view type is supported for reading.">jpeg_read_support</a> { |
| <a name="l00040"></a>00040 BOOST_STATIC_CONSTANT(<span class="keywordtype">bool</span>,is_supported= |
| <a name="l00041"></a>00041 (detail::jpeg_read_support_private<<span class="keyword">typename</span> channel_type<View>::type, |
| <a name="l00042"></a>00042 <span class="keyword">typename</span> color_space_type<View>::type>::is_supported)); |
| <a name="l00043"></a>00043 BOOST_STATIC_CONSTANT(J_COLOR_SPACE,color_type= |
| <a name="l00044"></a>00044 (detail::jpeg_read_support_private<<span class="keyword">typename</span> channel_type<View>::type, |
| <a name="l00045"></a>00045 <span class="keyword">typename</span> color_space_type<View>::type>::color_type)); |
| <a name="l00046"></a>00046 BOOST_STATIC_CONSTANT(<span class="keywordtype">bool</span>, value=is_supported); |
| <a name="l00047"></a>00047 }; |
| <a name="l00048"></a>00048 |
| <a name="l00052"></a><a class="code" href="g_i_l_0169.html#g10d06211a2d4ba61145b50cf04f3ad85">00052</a> <span class="keyword">inline</span> <a class="code" href="g_i_l_0060.html" title="2D point both axes of which have the same dimension typeModels: Point2DConcept">point2<std::ptrdiff_t></a> <a class="code" href="g_i_l_0169.html#g21fa19b7e1fe494fcfc2ed43d8592f8c" title="Returns the width and height of the JPEG file at the specified location. Throws std::ios_base::failu...">jpeg_read_dimensions</a>(<span class="keyword">const</span> <span class="keywordtype">char</span>* filename) { |
| <a name="l00053"></a>00053 detail::jpeg_reader m(filename); |
| <a name="l00054"></a>00054 <span class="keywordflow">return</span> m.get_dimensions(); |
| <a name="l00055"></a>00055 } |
| <a name="l00056"></a>00056 |
| <a name="l00060"></a><a class="code" href="g_i_l_0169.html#g21fa19b7e1fe494fcfc2ed43d8592f8c">00060</a> <span class="keyword">inline</span> <a class="code" href="g_i_l_0060.html" title="2D point both axes of which have the same dimension typeModels: Point2DConcept">point2<std::ptrdiff_t></a> <a class="code" href="g_i_l_0169.html#g21fa19b7e1fe494fcfc2ed43d8592f8c" title="Returns the width and height of the JPEG file at the specified location. Throws std::ios_base::failu...">jpeg_read_dimensions</a>(<span class="keyword">const</span> std::string& filename) { |
| <a name="l00061"></a>00061 <span class="keywordflow">return</span> <a class="code" href="g_i_l_0169.html#g21fa19b7e1fe494fcfc2ed43d8592f8c" title="Returns the width and height of the JPEG file at the specified location. Throws std::ios_base::failu...">jpeg_read_dimensions</a>(filename.c_str()); |
| <a name="l00062"></a>00062 } |
| <a name="l00063"></a>00063 |
| <a name="l00069"></a>00069 <span class="keyword">template</span> <<span class="keyword">typename</span> View> |
| <a name="l00070"></a><a class="code" href="g_i_l_0169.html#g4e8ae7c617147cf99f7a2aa37e44f28c">00070</a> <span class="keyword">inline</span> <span class="keywordtype">void</span> <a class="code" href="g_i_l_0169.html#gb5a415b1f4ef559bf78affc4b9ce0358" title="Loads the image specified by the given jpeg image file name into the given view.">jpeg_read_view</a>(<span class="keyword">const</span> <span class="keywordtype">char</span>* filename,<span class="keyword">const</span> View& <a class="code" href="g_i_l_0135.html#g55e45a15dddfc0d870c2f7fb9739cb2e" title="Returns the non-constant-pixel view of any image. The returned view is any view.">view</a>) { |
| <a name="l00071"></a>00071 BOOST_STATIC_ASSERT(<a class="code" href="g_i_l_0555.html" title="Determines whether the given view type is supported for reading.">jpeg_read_support<View>::is_supported</a>); |
| <a name="l00072"></a>00072 |
| <a name="l00073"></a>00073 detail::jpeg_reader m(filename); |
| <a name="l00074"></a>00074 m.apply(view); |
| <a name="l00075"></a>00075 } |
| <a name="l00076"></a>00076 |
| <a name="l00079"></a>00079 <span class="keyword">template</span> <<span class="keyword">typename</span> View> |
| <a name="l00080"></a><a class="code" href="g_i_l_0169.html#gb5a415b1f4ef559bf78affc4b9ce0358">00080</a> <span class="keyword">inline</span> <span class="keywordtype">void</span> <a class="code" href="g_i_l_0169.html#gb5a415b1f4ef559bf78affc4b9ce0358" title="Loads the image specified by the given jpeg image file name into the given view.">jpeg_read_view</a>(<span class="keyword">const</span> std::string& filename,<span class="keyword">const</span> View& <a class="code" href="g_i_l_0135.html#g55e45a15dddfc0d870c2f7fb9739cb2e" title="Returns the non-constant-pixel view of any image. The returned view is any view.">view</a>) { |
| <a name="l00081"></a>00081 <a class="code" href="g_i_l_0169.html#gb5a415b1f4ef559bf78affc4b9ce0358" title="Loads the image specified by the given jpeg image file name into the given view.">jpeg_read_view</a>(filename.c_str(),view); |
| <a name="l00082"></a>00082 } |
| <a name="l00083"></a>00083 |
| <a name="l00089"></a>00089 <span class="keyword">template</span> <<span class="keyword">typename</span> Image> |
| <a name="l00090"></a><a class="code" href="g_i_l_0169.html#gfb203fbcc1d3e5ea247068b404b58e91">00090</a> <span class="keyword">inline</span> <span class="keywordtype">void</span> <a class="code" href="g_i_l_0169.html#g02171bdd359b1fb5fc89ad34a0732494" title="Allocates a new image whose dimensions are determined by the given jpeg image file...">jpeg_read_image</a>(<span class="keyword">const</span> <span class="keywordtype">char</span>* filename,Image& im) { |
| <a name="l00091"></a>00091 BOOST_STATIC_ASSERT(<a class="code" href="g_i_l_0555.html" title="Determines whether the given view type is supported for reading.">jpeg_read_support<typename Image::view_t>::is_supported</a>); |
| <a name="l00092"></a>00092 |
| <a name="l00093"></a>00093 detail::jpeg_reader m(filename); |
| <a name="l00094"></a>00094 m.read_image(im); |
| <a name="l00095"></a>00095 } |
| <a name="l00096"></a>00096 |
| <a name="l00099"></a>00099 <span class="keyword">template</span> <<span class="keyword">typename</span> Image> |
| <a name="l00100"></a><a class="code" href="g_i_l_0169.html#g02171bdd359b1fb5fc89ad34a0732494">00100</a> <span class="keyword">inline</span> <span class="keywordtype">void</span> <a class="code" href="g_i_l_0169.html#g02171bdd359b1fb5fc89ad34a0732494" title="Allocates a new image whose dimensions are determined by the given jpeg image file...">jpeg_read_image</a>(<span class="keyword">const</span> std::string& filename,Image& im) { |
| <a name="l00101"></a>00101 <a class="code" href="g_i_l_0169.html#g02171bdd359b1fb5fc89ad34a0732494" title="Allocates a new image whose dimensions are determined by the given jpeg image file...">jpeg_read_image</a>(filename.c_str(),im); |
| <a name="l00102"></a>00102 } |
| <a name="l00103"></a>00103 |
| <a name="l00107"></a>00107 <span class="keyword">template</span> <<span class="keyword">typename</span> View,<span class="keyword">typename</span> CC> |
| <a name="l00108"></a><a class="code" href="g_i_l_0169.html#ged18c0f8084bedab8804d2cd1b0b284d">00108</a> <span class="keyword">inline</span> <span class="keywordtype">void</span> <a class="code" href="g_i_l_0169.html#ga30345368e41c777d30351666ce7e93b" title="Loads and color-converts the image specified by the given jpeg image file name into...">jpeg_read_and_convert_view</a>(<span class="keyword">const</span> <span class="keywordtype">char</span>* filename,<span class="keyword">const</span> View& <a class="code" href="g_i_l_0135.html#g55e45a15dddfc0d870c2f7fb9739cb2e" title="Returns the non-constant-pixel view of any image. The returned view is any view.">view</a>,CC cc) { |
| <a name="l00109"></a>00109 detail::jpeg_reader_color_convert<CC> m(filename,cc); |
| <a name="l00110"></a>00110 m.apply(view); |
| <a name="l00111"></a>00111 } |
| <a name="l00112"></a>00112 |
| <a name="l00116"></a>00116 <span class="keyword">template</span> <<span class="keyword">typename</span> View> |
| <a name="l00117"></a><a class="code" href="g_i_l_0169.html#g78a3eed977abde42c3402a88a5f11e10">00117</a> <span class="keyword">inline</span> <span class="keywordtype">void</span> <a class="code" href="g_i_l_0169.html#ga30345368e41c777d30351666ce7e93b" title="Loads and color-converts the image specified by the given jpeg image file name into...">jpeg_read_and_convert_view</a>(<span class="keyword">const</span> <span class="keywordtype">char</span>* filename,<span class="keyword">const</span> View& <a class="code" href="g_i_l_0135.html#g55e45a15dddfc0d870c2f7fb9739cb2e" title="Returns the non-constant-pixel view of any image. The returned view is any view.">view</a>) { |
| <a name="l00118"></a>00118 detail::jpeg_reader_color_convert<default_color_converter> m(filename,<a class="code" href="g_i_l_0452.html" title="class for color-converting one pixel to another">default_color_converter</a>()); |
| <a name="l00119"></a>00119 m.apply(view); |
| <a name="l00120"></a>00120 } |
| <a name="l00121"></a>00121 |
| <a name="l00124"></a>00124 <span class="keyword">template</span> <<span class="keyword">typename</span> View,<span class="keyword">typename</span> CC> |
| <a name="l00125"></a><a class="code" href="g_i_l_0169.html#gf162e38328791b405a57e079eecc6a54">00125</a> <span class="keyword">inline</span> <span class="keywordtype">void</span> <a class="code" href="g_i_l_0169.html#ga30345368e41c777d30351666ce7e93b" title="Loads and color-converts the image specified by the given jpeg image file name into...">jpeg_read_and_convert_view</a>(<span class="keyword">const</span> std::string& filename,<span class="keyword">const</span> View& <a class="code" href="g_i_l_0135.html#g55e45a15dddfc0d870c2f7fb9739cb2e" title="Returns the non-constant-pixel view of any image. The returned view is any view.">view</a>,CC cc) { |
| <a name="l00126"></a>00126 <a class="code" href="g_i_l_0169.html#ga30345368e41c777d30351666ce7e93b" title="Loads and color-converts the image specified by the given jpeg image file name into...">jpeg_read_and_convert_view</a>(filename.c_str(),view); |
| <a name="l00127"></a>00127 } |
| <a name="l00128"></a>00128 |
| <a name="l00131"></a>00131 <span class="keyword">template</span> <<span class="keyword">typename</span> View> |
| <a name="l00132"></a><a class="code" href="g_i_l_0169.html#ga30345368e41c777d30351666ce7e93b">00132</a> <span class="keyword">inline</span> <span class="keywordtype">void</span> <a class="code" href="g_i_l_0169.html#ga30345368e41c777d30351666ce7e93b" title="Loads and color-converts the image specified by the given jpeg image file name into...">jpeg_read_and_convert_view</a>(<span class="keyword">const</span> std::string& filename,<span class="keyword">const</span> View& <a class="code" href="g_i_l_0135.html#g55e45a15dddfc0d870c2f7fb9739cb2e" title="Returns the non-constant-pixel view of any image. The returned view is any view.">view</a>) { |
| <a name="l00133"></a>00133 <a class="code" href="g_i_l_0169.html#ga30345368e41c777d30351666ce7e93b" title="Loads and color-converts the image specified by the given jpeg image file name into...">jpeg_read_and_convert_view</a>(filename.c_str(),view); |
| <a name="l00134"></a>00134 } |
| <a name="l00135"></a>00135 |
| <a name="l00139"></a>00139 <span class="keyword">template</span> <<span class="keyword">typename</span> Image,<span class="keyword">typename</span> CC> |
| <a name="l00140"></a><a class="code" href="g_i_l_0169.html#gbe915826a254db40e74e783255b502e4">00140</a> <span class="keyword">inline</span> <span class="keywordtype">void</span> <a class="code" href="g_i_l_0169.html#g6de4bc4d35308da0326b98b0e52aa335" title="Allocates a new image whose dimensions are determined by the given jpeg image file...">jpeg_read_and_convert_image</a>(<span class="keyword">const</span> <span class="keywordtype">char</span>* filename,Image& im,CC cc) { |
| <a name="l00141"></a>00141 detail::jpeg_reader_color_convert<CC> m(filename,cc); |
| <a name="l00142"></a>00142 m.read_image(im); |
| <a name="l00143"></a>00143 } |
| <a name="l00144"></a>00144 |
| <a name="l00148"></a>00148 <span class="keyword">template</span> <<span class="keyword">typename</span> Image> |
| <a name="l00149"></a><a class="code" href="g_i_l_0169.html#g9aca5b2912f7e52f6c10d30be27b051d">00149</a> <span class="keyword">inline</span> <span class="keywordtype">void</span> <a class="code" href="g_i_l_0169.html#g6de4bc4d35308da0326b98b0e52aa335" title="Allocates a new image whose dimensions are determined by the given jpeg image file...">jpeg_read_and_convert_image</a>(<span class="keyword">const</span> <span class="keywordtype">char</span>* filename,Image& im) { |
| <a name="l00150"></a>00150 detail::jpeg_reader_color_convert<default_color_converter> m(filename,<a class="code" href="g_i_l_0452.html" title="class for color-converting one pixel to another">default_color_converter</a>()); |
| <a name="l00151"></a>00151 m.read_image(im); |
| <a name="l00152"></a>00152 } |
| <a name="l00153"></a>00153 |
| <a name="l00156"></a>00156 <span class="keyword">template</span> <<span class="keyword">typename</span> Image,<span class="keyword">typename</span> CC> |
| <a name="l00157"></a><a class="code" href="g_i_l_0169.html#g689d32dffbcddd731b7314362a85a7ee">00157</a> <span class="keyword">inline</span> <span class="keywordtype">void</span> <a class="code" href="g_i_l_0169.html#g6de4bc4d35308da0326b98b0e52aa335" title="Allocates a new image whose dimensions are determined by the given jpeg image file...">jpeg_read_and_convert_image</a>(<span class="keyword">const</span> std::string& filename,Image& im,CC cc) { |
| <a name="l00158"></a>00158 <a class="code" href="g_i_l_0169.html#g6de4bc4d35308da0326b98b0e52aa335" title="Allocates a new image whose dimensions are determined by the given jpeg image file...">jpeg_read_and_convert_image</a>(filename.c_str(),im); |
| <a name="l00159"></a>00159 } |
| <a name="l00160"></a>00160 |
| <a name="l00163"></a>00163 <span class="keyword">template</span> <<span class="keyword">typename</span> Image> |
| <a name="l00164"></a><a class="code" href="g_i_l_0169.html#g6de4bc4d35308da0326b98b0e52aa335">00164</a> <span class="keyword">inline</span> <span class="keywordtype">void</span> <a class="code" href="g_i_l_0169.html#g6de4bc4d35308da0326b98b0e52aa335" title="Allocates a new image whose dimensions are determined by the given jpeg image file...">jpeg_read_and_convert_image</a>(<span class="keyword">const</span> std::string& filename,Image& im) { |
| <a name="l00165"></a>00165 <a class="code" href="g_i_l_0169.html#g6de4bc4d35308da0326b98b0e52aa335" title="Allocates a new image whose dimensions are determined by the given jpeg image file...">jpeg_read_and_convert_image</a>(filename.c_str(),im); |
| <a name="l00166"></a>00166 } |
| <a name="l00167"></a>00167 |
| <a name="l00170"></a>00170 <span class="keyword">template</span> <<span class="keyword">typename</span> View> |
| <a name="l00171"></a><a class="code" href="g_i_l_0557.html">00171</a> <span class="keyword">struct </span><a class="code" href="g_i_l_0557.html" title="Determines whether the given view type is supported for writing.">jpeg_write_support</a> { |
| <a name="l00172"></a>00172 BOOST_STATIC_CONSTANT(<span class="keywordtype">bool</span>,is_supported= |
| <a name="l00173"></a>00173 (detail::jpeg_write_support_private<<span class="keyword">typename</span> channel_type<View>::type, |
| <a name="l00174"></a>00174 <span class="keyword">typename</span> color_space_type<View>::type>::is_supported)); |
| <a name="l00175"></a>00175 BOOST_STATIC_CONSTANT(J_COLOR_SPACE,color_type= |
| <a name="l00176"></a>00176 (detail::jpeg_write_support_private<<span class="keyword">typename</span> channel_type<View>::type, |
| <a name="l00177"></a>00177 <span class="keyword">typename</span> color_space_type<View>::type>::color_type)); |
| <a name="l00178"></a>00178 BOOST_STATIC_CONSTANT(<span class="keywordtype">bool</span>, value=is_supported); |
| <a name="l00179"></a>00179 }; |
| <a name="l00180"></a>00180 |
| <a name="l00185"></a>00185 <span class="keyword">template</span> <<span class="keyword">typename</span> View> |
| <a name="l00186"></a><a class="code" href="g_i_l_0169.html#g565d99caa50193f98f49728c8b9d807e">00186</a> <span class="keyword">inline</span> <span class="keywordtype">void</span> <a class="code" href="g_i_l_0169.html#g63405962170c1f94d6318d46134db7f4" title="Saves the view to a jpeg file specified by the given jpeg image file name.">jpeg_write_view</a>(<span class="keyword">const</span> <span class="keywordtype">char</span>* filename,<span class="keyword">const</span> View& <a class="code" href="g_i_l_0135.html#g55e45a15dddfc0d870c2f7fb9739cb2e" title="Returns the non-constant-pixel view of any image. The returned view is any view.">view</a>,<span class="keywordtype">int</span> quality=100) { |
| <a name="l00187"></a>00187 BOOST_STATIC_ASSERT(<a class="code" href="g_i_l_0557.html" title="Determines whether the given view type is supported for writing.">jpeg_write_support<View>::is_supported</a>); |
| <a name="l00188"></a>00188 |
| <a name="l00189"></a>00189 detail::jpeg_writer m(filename); |
| <a name="l00190"></a>00190 m.apply(view,quality); |
| <a name="l00191"></a>00191 } |
| <a name="l00192"></a>00192 |
| <a name="l00195"></a>00195 <span class="keyword">template</span> <<span class="keyword">typename</span> View> |
| <a name="l00196"></a><a class="code" href="g_i_l_0169.html#g63405962170c1f94d6318d46134db7f4">00196</a> <span class="keyword">inline</span> <span class="keywordtype">void</span> <a class="code" href="g_i_l_0169.html#g63405962170c1f94d6318d46134db7f4" title="Saves the view to a jpeg file specified by the given jpeg image file name.">jpeg_write_view</a>(<span class="keyword">const</span> std::string& filename,<span class="keyword">const</span> View& <a class="code" href="g_i_l_0135.html#g55e45a15dddfc0d870c2f7fb9739cb2e" title="Returns the non-constant-pixel view of any image. The returned view is any view.">view</a>,<span class="keywordtype">int</span> quality=100) { |
| <a name="l00197"></a>00197 <a class="code" href="g_i_l_0169.html#g63405962170c1f94d6318d46134db7f4" title="Saves the view to a jpeg file specified by the given jpeg image file name.">jpeg_write_view</a>(filename.c_str(),view,quality); |
| <a name="l00198"></a>00198 } |
| <a name="l00199"></a>00199 |
| <a name="l00200"></a>00200 } } <span class="comment">// namespace boost::gil</span> |
| <a name="l00201"></a>00201 |
| <a name="l00202"></a>00202 <span class="preprocessor">#endif</span> |
| </pre></div></div> |
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| <img src="doxygen.png" alt="doxygen" align="middle" border="0"></a> 1.5.6 </small></address> |
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