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 41<h1>tiff_dynamic_io.hpp</h1><a href="g_i_l_0639.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_TIFF_DYNAMIC_IO_H</span>
 54<a name="l00014"></a>00014 <span class="preprocessor"></span><span class="preprocessor">#define GIL_TIFF_DYNAMIC_IO_H</span>
 55<a name="l00015"></a>00015 <span class="preprocessor"></span>
 56<a name="l00022"></a>00022 <span class="comment">//</span>
 57<a name="l00023"></a>00023 <span class="comment">// We are currently providing the following functions:</span>
 58<a name="l00024"></a>00024 <span class="comment">// template &lt;typename Images&gt; void tiff_read_image(const char*,any_image&lt;Images&gt;)</span>
 59<a name="l00025"></a>00025 <span class="comment">// template &lt;typename Views&gt; void tiff_write_view(const char*,any_image_view&lt;Views&gt;)</span>
 60<a name="l00026"></a>00026 <span class="comment">//</span>
 61<a name="l00027"></a>00027 
 62<a name="l00028"></a>00028 <span class="preprocessor">#include &lt;string&gt;</span>
 63<a name="l00029"></a>00029 <span class="preprocessor">#include &lt;boost/mpl/bool.hpp&gt;</span>
 64<a name="l00030"></a>00030 <span class="preprocessor">#include "../dynamic_image/dynamic_image_all.hpp"</span>
 65<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>
 66<a name="l00032"></a>00032 <span class="preprocessor">#include "<a class="code" href="tiff__io_8hpp.html" title="Support for reading and writing TIFF files Requires libtiff!">tiff_io.hpp</a>"</span>
 67<a name="l00033"></a>00033 <span class="preprocessor">#include "<a class="code" href="g_i_l_0085.html" title="Generic io functions for dealing with dynamic images.">dynamic_io.hpp</a>"</span>
 68<a name="l00034"></a>00034 
 69<a name="l00035"></a>00035 <span class="keyword">namespace </span>boost { <span class="keyword">namespace </span>gil {
 70<a name="l00036"></a>00036 
 71<a name="l00037"></a>00037 <span class="keyword">namespace </span>detail {
 72<a name="l00038"></a>00038 
 73<a name="l00039"></a>00039 <span class="keyword">struct </span>tiff_write_is_supported {
 74<a name="l00040"></a>00040     <span class="keyword">template</span>&lt;<span class="keyword">typename</span> View&gt; <span class="keyword">struct </span>apply
 75<a name="l00041"></a>00041         : <span class="keyword">public</span> mpl::bool_&lt;tiff_write_support&lt;View&gt;::is_supported&gt; {};
 76<a name="l00042"></a>00042 };
 77<a name="l00043"></a>00043 
 78<a name="l00044"></a>00044 <span class="keyword">class </span>tiff_writer_dynamic : <span class="keyword">public</span> tiff_writer {
 79<a name="l00045"></a>00045 <span class="keyword">public</span>:
 80<a name="l00046"></a>00046     <span class="keyword">typedef</span> <span class="keywordtype">void</span> result_type;
 81<a name="l00047"></a>00047     tiff_writer_dynamic(<span class="keyword">const</span> <span class="keywordtype">char</span>* filename) : tiff_writer(filename) {}
 82<a name="l00048"></a>00048 
 83<a name="l00049"></a>00049     <span class="keyword">template</span> &lt;<span class="keyword">typename</span> Views&gt;
 84<a name="l00050"></a>00050     <span class="keywordtype">void</span> write_view(<span class="keyword">const</span> any_image_view&lt;Views&gt;&amp; runtime_view) {
 85<a name="l00051"></a>00051         dynamic_io_fnobj&lt;tiff_write_is_supported, tiff_writer&gt; op(<span class="keyword">this</span>);
 86<a name="l00052"></a>00052         <a class="code" href="group___variant.html#g3dc0a90911c08815be11e1e49ec06037" title="Invokes a generic constant operation (represented as a binary function object) on...">apply_operation</a>(runtime_view,op);
 87<a name="l00053"></a>00053     }
 88<a name="l00054"></a>00054 };
 89<a name="l00055"></a>00055 
 90<a name="l00056"></a>00056 <span class="keyword">class </span>tiff_type_format_checker {
 91<a name="l00057"></a>00057     <span class="keywordtype">int</span> _bit_depth;
 92<a name="l00058"></a>00058     <span class="keywordtype">int</span> _color_type;
 93<a name="l00059"></a>00059 <span class="keyword">public</span>:
 94<a name="l00060"></a>00060     tiff_type_format_checker(<span class="keywordtype">int</span> bit_depth_in,<span class="keywordtype">int</span> color_type_in) :
 95<a name="l00061"></a>00061         _bit_depth(bit_depth_in),_color_type(color_type_in) {}
 96<a name="l00062"></a>00062     <span class="keyword">template</span> &lt;<span class="keyword">typename</span> Image&gt;
 97<a name="l00063"></a>00063     <span class="keywordtype">bool</span> apply() {
 98<a name="l00064"></a>00064         <span class="keywordflow">return</span> tiff_read_support&lt;typename Image::view_t&gt;::bit_depth==_bit_depth &amp;&amp;
 99<a name="l00065"></a>00065                tiff_read_support&lt;typename Image::view_t&gt;::color_type==_color_type;
100<a name="l00066"></a>00066     }
101<a name="l00067"></a>00067 };
102<a name="l00068"></a>00068 
103<a name="l00069"></a>00069 <span class="keyword">struct </span>tiff_read_is_supported {
104<a name="l00070"></a>00070     <span class="keyword">template</span>&lt;<span class="keyword">typename</span> View&gt; <span class="keyword">struct </span>apply
105<a name="l00071"></a>00071         : <span class="keyword">public</span> mpl::bool_&lt;tiff_read_support&lt;View&gt;::is_supported&gt; {};
106<a name="l00072"></a>00072 };
107<a name="l00073"></a>00073 
108<a name="l00074"></a>00074 <span class="keyword">class </span>tiff_reader_dynamic : <span class="keyword">public</span> tiff_reader {
109<a name="l00075"></a>00075 <span class="keyword">public</span>:
110<a name="l00076"></a>00076     tiff_reader_dynamic(<span class="keyword">const</span> <span class="keywordtype">char</span>* filename) : tiff_reader(filename) {}
111<a name="l00077"></a>00077 
112<a name="l00078"></a>00078     <span class="keyword">template</span> &lt;<span class="keyword">typename</span> Images&gt;
113<a name="l00079"></a>00079     <span class="keywordtype">void</span> read_image(any_image&lt;Images&gt;&amp; im) {
114<a name="l00080"></a>00080         <span class="keywordtype">int</span> width,height;
115<a name="l00081"></a>00081         <span class="keywordtype">unsigned</span> <span class="keywordtype">short</span> bps,photometric;
116<a name="l00082"></a>00082         TIFFGetField(_tp,TIFFTAG_IMAGEWIDTH,&amp;width);
117<a name="l00083"></a>00083         TIFFGetField(_tp,TIFFTAG_IMAGELENGTH,&amp;height);
118<a name="l00084"></a>00084         TIFFGetField(_tp,TIFFTAG_BITSPERSAMPLE,&amp;bps);
119<a name="l00085"></a>00085         TIFFGetField(_tp,TIFFTAG_PHOTOMETRIC,&amp;photometric);
120<a name="l00086"></a>00086         <span class="keywordflow">if</span> (!construct_matched(im,tiff_type_format_checker(bps,photometric))) {
121<a name="l00087"></a>00087             io_error(<span class="stringliteral">"tiff_reader_dynamic::read_image(): no matching image type between those of the given any_image and that of the file"</span>);
122<a name="l00088"></a>00088         } <span class="keywordflow">else</span> {
123<a name="l00089"></a>00089             im.recreate(width,height);
124<a name="l00090"></a>00090             dynamic_io_fnobj&lt;tiff_read_is_supported, tiff_reader&gt; op(<span class="keyword">this</span>);
125<a name="l00091"></a>00091             <a class="code" href="group___variant.html#g3dc0a90911c08815be11e1e49ec06037" title="Invokes a generic constant operation (represented as a binary function object) on...">apply_operation</a>(<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>(im),op);
126<a name="l00092"></a>00092         }
127<a name="l00093"></a>00093     }
128<a name="l00094"></a>00094 };
129<a name="l00095"></a>00095 
130<a name="l00096"></a>00096 } <span class="comment">// namespace detail</span>
131<a name="l00097"></a>00097 
132<a name="l00103"></a>00103 <span class="keyword">template</span> &lt;<span class="keyword">typename</span> Images&gt;
133<a name="l00104"></a><a class="code" href="g_i_l_0216.html#g6668f0775908d834ab5fdf0cb2e41e34">00104</a> <span class="keyword">inline</span> <span class="keywordtype">void</span> <a class="code" href="g_i_l_0216.html#g14ff6b4a743878cac2b32fdaedd5e705" title="Allocates a new image whose dimensions are determined by the given tiff image file...">tiff_read_image</a>(<span class="keyword">const</span> <span class="keywordtype">char</span>* filename,<a class="code" href="g_i_l_0018.html" title="Represents a run-time specified image. Note it does NOT model ImageConcept.">any_image&lt;Images&gt;</a>&amp; im) {
134<a name="l00105"></a>00105     detail::tiff_reader_dynamic m(filename);
135<a name="l00106"></a>00106     m.read_image(im);
136<a name="l00107"></a>00107 }
137<a name="l00108"></a>00108 
138<a name="l00111"></a>00111 <span class="keyword">template</span> &lt;<span class="keyword">typename</span> Images&gt;
139<a name="l00112"></a><a class="code" href="g_i_l_0216.html#gd98fe891bca440cb0e68a08aaa9e4574">00112</a> <span class="keyword">inline</span> <span class="keywordtype">void</span> <a class="code" href="g_i_l_0216.html#g14ff6b4a743878cac2b32fdaedd5e705" title="Allocates a new image whose dimensions are determined by the given tiff image file...">tiff_read_image</a>(<span class="keyword">const</span> std::string&amp; filename,<a class="code" href="g_i_l_0018.html" title="Represents a run-time specified image. Note it does NOT model ImageConcept.">any_image&lt;Images&gt;</a>&amp; im) {
140<a name="l00113"></a>00113     <a class="code" href="g_i_l_0216.html#g14ff6b4a743878cac2b32fdaedd5e705" title="Allocates a new image whose dimensions are determined by the given tiff image file...">tiff_read_image</a>(filename.c_str(),im);
141<a name="l00114"></a>00114 }
142<a name="l00115"></a>00115 
143<a name="l00120"></a>00120 <span class="keyword">template</span> &lt;<span class="keyword">typename</span> Views&gt;
144<a name="l00121"></a><a class="code" href="g_i_l_0216.html#g512a713ae6fc8aa9da4415a1f554a67e">00121</a> <span class="keyword">inline</span> <span class="keywordtype">void</span> <a class="code" href="g_i_l_0216.html#g99ce921bc92a5bbcf2145d3387e5e323" title="Saves the view to a tiff file specified by the given tiff image file name.">tiff_write_view</a>(<span class="keyword">const</span> <span class="keywordtype">char</span>* filename,<span class="keyword">const</span> <a class="code" href="g_i_l_0020.html" title="Represents a run-time specified image view. Models HasDynamicXStepTypeConcept, HasDynamicYStepTypeCo...">any_image_view&lt;Views&gt;</a>&amp; runtime_view) {
145<a name="l00122"></a>00122     detail::tiff_writer_dynamic m(filename);
146<a name="l00123"></a>00123     m.write_view(runtime_view);
147<a name="l00124"></a>00124 }
148<a name="l00125"></a>00125 
149<a name="l00128"></a>00128 <span class="keyword">template</span> &lt;<span class="keyword">typename</span> Views&gt;
150<a name="l00129"></a><a class="code" href="g_i_l_0216.html#g718fc306c4dba31246989bb6255dd3fb">00129</a> <span class="keyword">inline</span> <span class="keywordtype">void</span> <a class="code" href="g_i_l_0216.html#g99ce921bc92a5bbcf2145d3387e5e323" title="Saves the view to a tiff file specified by the given tiff image file name.">tiff_write_view</a>(<span class="keyword">const</span> std::string&amp; filename,<span class="keyword">const</span> <a class="code" href="g_i_l_0020.html" title="Represents a run-time specified image view. Models HasDynamicXStepTypeConcept, HasDynamicYStepTypeCo...">any_image_view&lt;Views&gt;</a>&amp; runtime_view) {
151<a name="l00130"></a>00130     <a class="code" href="g_i_l_0216.html#g99ce921bc92a5bbcf2145d3387e5e323" title="Saves the view to a tiff file specified by the given tiff image file name.">tiff_write_view</a>(filename.c_str(),runtime_view);
152<a name="l00131"></a>00131 }
153<a name="l00132"></a>00132 
154<a name="l00133"></a>00133 } }  <span class="comment">// namespace boost::gil</span>
155<a name="l00134"></a>00134 
156<a name="l00135"></a>00135 <span class="preprocessor">#endif</span>
157</pre></div></div>
158<hr size="1"><address style="text-align: right;"><small>Generated on Sat May 2 13:50:15 2009 for Generic Image Library by&nbsp;
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160<img src="doxygen.png" alt="doxygen" align="middle" border="0"></a> 1.5.6 </small></address>
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