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<h1>dox/IO/vtkDataCompressor.h</h1><a href="a03107.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"></span>
<a name="l00003"></a>00003 <span class="comment"> Program: Visualization Toolkit</span>
<a name="l00004"></a>00004 <span class="comment"> Module: $RCSfile: vtkDataCompressor.h,v $</span>
<a name="l00005"></a>00005 <span class="comment"></span>
<a name="l00006"></a>00006 <span class="comment"> Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen</span>
<a name="l00007"></a>00007 <span class="comment"> All rights reserved.</span>
<a name="l00008"></a>00008 <span class="comment"> See Copyright.txt or http://www.kitware.com/Copyright.htm for details.</span>
<a name="l00009"></a>00009 <span class="comment"></span>
<a name="l00010"></a>00010 <span class="comment"> This software is distributed WITHOUT ANY WARRANTY; without even</span>
<a name="l00011"></a>00011 <span class="comment"> the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR</span>
<a name="l00012"></a>00012 <span class="comment"> PURPOSE. See the above copyright notice for more information.</span>
<a name="l00013"></a>00013 <span class="comment"></span>
<a name="l00014"></a>00014 <span class="comment">=========================================================================*/</span>
<a name="l00024"></a>00024 <span class="preprocessor">#ifndef __vtkDataCompressor_h</span>
<a name="l00025"></a>00025 <span class="preprocessor"></span><span class="preprocessor">#define __vtkDataCompressor_h</span>
<a name="l00026"></a>00026 <span class="preprocessor"></span>
<a name="l00027"></a>00027 <span class="preprocessor">#include "<a class="code" href="a02079.html">vtkObject.h</a>"</span>
<a name="l00028"></a>00028
<a name="l00029"></a>00029 <span class="keyword">class </span><a class="code" href="a01784.html" title="dynamic, self-adjusting array of unsigned char">vtkUnsignedCharArray</a>;
<a name="l00030"></a>00030
<a name="l00031"></a><a class="code" href="a00361.html">00031</a> <span class="keyword">class </span><a class="code" href="a02170.html#aab695c81fb47ab75c91e111e17cbe2c">VTK_IO_EXPORT</a> <a class="code" href="a00361.html" title="Abstract interface for data compression classes.">vtkDataCompressor</a> : <span class="keyword">public</span> <a class="code" href="a01084.html" title="abstract base class for most VTK objects">vtkObject</a>
<a name="l00032"></a>00032 {
<a name="l00033"></a>00033 <span class="keyword">public</span>:
<a name="l00034"></a><a class="code" href="a00361.html#ba65ea7adf1fd908798a73c56fcd97a7">00034</a> vtkTypeRevisionMacro(<a class="code" href="a00361.html" title="Abstract interface for data compression classes.">vtkDataCompressor</a>,<a class="code" href="a01084.html" title="abstract base class for most VTK objects">vtkObject</a>);
<a name="l00035"></a>00035 <span class="keywordtype">void</span> <a class="code" href="a01084.html#bf3dbb4154289b56a12483eee3866263">PrintSelf</a>(ostream& os, <a class="code" href="a00869.html" title="a simple class to control print indentation">vtkIndent</a> indent);
<a name="l00036"></a>00036
<a name="l00041"></a>00041 <span class="keyword">virtual</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> GetMaximumCompressionSpace(<span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> <a class="code" href="a03761.html#c6551f7bf833e8254b2b3ecdaea0d210e3d5e7c015dff08d8daf72a0102e1444">size</a>)=0;
<a name="l00042"></a>00042
<a name="l00044"></a>00044
<a name="l00047"></a>00047 <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> Compress(<span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span>* uncompressedData,
<a name="l00048"></a>00048 <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> uncompressedSize,
<a name="l00049"></a>00049 <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span>* compressedData,
<a name="l00050"></a>00050 <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> compressionSpace);
<a name="l00052"></a>00052
<a name="l00054"></a>00054
<a name="l00057"></a>00057 <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> Uncompress(<span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span>* compressedData,
<a name="l00058"></a>00058 <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> compressedSize,
<a name="l00059"></a>00059 <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span>* uncompressedData,
<a name="l00060"></a>00060 <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> uncompressedSize);
<a name="l00062"></a>00062
<a name="l00064"></a>00064
<a name="l00066"></a>00066 <a class="code" href="a01784.html" title="dynamic, self-adjusting array of unsigned char">vtkUnsignedCharArray</a>* Compress(<span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span>* uncompressedData,
<a name="l00067"></a>00067 <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> uncompressedSize);
<a name="l00069"></a>00069
<a name="l00071"></a>00071
<a name="l00075"></a>00075 <a class="code" href="a01784.html" title="dynamic, self-adjusting array of unsigned char">vtkUnsignedCharArray</a>* Uncompress(<span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span>* compressedData,
<a name="l00076"></a>00076 <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> compressedSize,
<a name="l00077"></a>00077 <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> uncompressedSize);
<a name="l00079"></a>00079 <span class="keyword">protected</span>:
<a name="l00080"></a>00080 <a class="code" href="a00361.html" title="Abstract interface for data compression classes.">vtkDataCompressor</a>();
<a name="l00081"></a>00081 ~<a class="code" href="a00361.html" title="Abstract interface for data compression classes.">vtkDataCompressor</a>();
<a name="l00082"></a>00082
<a name="l00083"></a>00083 <span class="comment">// Actual compression method. This must be provided by a subclass.</span>
<a name="l00084"></a>00084 <span class="comment">// Must return the size of the compressed data, or zero on error.</span>
<a name="l00085"></a>00085 <span class="keyword">virtual</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> CompressBuffer(<span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span>* uncompressedData,
<a name="l00086"></a>00086 <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> uncompressedSize,
<a name="l00087"></a>00087 <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span>* compressedData,
<a name="l00088"></a>00088 <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> compressionSpace)=0;
<a name="l00089"></a>00089 <span class="comment">// Actual decompression method. This must be provided by a subclass.</span>
<a name="l00090"></a>00090 <span class="comment">// Must return the size of the uncompressed data, or zero on error.</span>
<a name="l00091"></a>00091 <span class="keyword">virtual</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> UncompressBuffer(<span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span>* compressedData,
<a name="l00092"></a>00092 <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> compressedSize,
<a name="l00093"></a>00093 <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span>* uncompressedData,
<a name="l00094"></a>00094 <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> uncompressedSize)=0;
<a name="l00095"></a>00095 <span class="keyword">private</span>:
<a name="l00096"></a>00096 <a class="code" href="a00361.html" title="Abstract interface for data compression classes.">vtkDataCompressor</a>(<span class="keyword">const</span> <a class="code" href="a00361.html" title="Abstract interface for data compression classes.">vtkDataCompressor</a>&); <span class="comment">// Not implemented.</span>
<a name="l00097"></a>00097 <span class="keywordtype">void</span> operator=(<span class="keyword">const</span> <a class="code" href="a00361.html" title="Abstract interface for data compression classes.">vtkDataCompressor</a>&); <span class="comment">// Not implemented.</span>
<a name="l00098"></a>00098 };
<a name="l00099"></a>00099
<a name="l00100"></a>00100 <span class="preprocessor">#endif</span>
</pre></div></div>
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