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<h1>plpgmdec.h</h1><div class="fragment"><pre>00001 <span class="comment">/*</span>
00002 <span class="comment">/--------------------------------------------------------------------</span>
00003 <span class="comment">|</span>
00004 <span class="comment">| $Id: plpgmdec_8h-source.html,v 1.4 2004/09/15 15:26:29 uzadow Exp $</span>
00005 <span class="comment">|</span>
00006 <span class="comment">| portable graymap Decoder Class</span>
00007 <span class="comment">|</span>
00008 <span class="comment">| Original author: Jose Miguel Buenaposada Biencinto.</span>
00009 <span class="comment">|</span>
00010 <span class="comment">| Copyright (c) 1996-2002 Ulrich von Zadow</span>
00011 <span class="comment">|</span>
00012 <span class="comment">\--------------------------------------------------------------------</span>
00013 <span class="comment">*/</span>
00014
00015 <span class="preprocessor">#ifndef INCL_PLPGMDEC</span>
00016 <span class="preprocessor"></span><span class="preprocessor">#define INCL_PLPGMDEC</span>
00017 <span class="preprocessor"></span>
00018 <span class="preprocessor">#ifndef INCL_PLPICDEC</span>
00019 <span class="preprocessor"></span><span class="preprocessor">#include "plpicdec.h"</span>
00020 <span class="preprocessor">#endif</span>
00021 <span class="preprocessor"></span>
00022 <span class="preprocessor">#include "<a class="code" href="plpgm_8h.html">plpgm.h</a>"</span>
00023 <span class="comment"></span>
00024 <span class="comment">//! Portable Graymap file decoder. Delivers an 8 bpp grayscale image.</span>
<a name="l00025"></a><a class="code" href="classPLPGMDecoder.html">00025</a> <span class="comment"></span><span class="keyword">class </span><a class="code" href="classPLPGMDecoder.html">PLPGMDecoder</a> : <span class="keyword">public</span> <a class="code" href="classPLPicDecoder.html">PLPicDecoder</a>
00026 {
00027
00028 <span class="keyword">public</span>:<span class="comment"></span>
00029 <span class="comment"> //! Creates a decoder</span>
00030 <span class="comment"></span> <a class="code" href="classPLPGMDecoder.html">PLPGMDecoder</a>
00031 ();
00032 <span class="comment"></span>
00033 <span class="comment"> //! Destroys a decoder</span>
00034 <span class="comment"></span> <span class="keyword">virtual</span> ~<a class="code" href="classPLPGMDecoder.html">PLPGMDecoder</a>
00035 ();
00036 <span class="comment"></span>
00037 <span class="comment"> //!</span>
00038 <span class="comment"></span> <span class="keyword">virtual</span> <span class="keywordtype">void</span> Open (<a class="code" href="classPLDataSource.html">PLDataSource</a> * pDataSrc);
00039 <span class="comment"></span>
00040 <span class="comment"> //!</span>
00041 <span class="comment"></span> <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="classPLPGMDecoder.html#a3">GetImage</a> (<a class="code" href="classPLBmpBase.html">PLBmpBase</a> & Bmp);
00042
00043 <span class="keyword">private</span>:
00044 <span class="keywordtype">void</span> readPgmHeader (PGMHEADER *pPgmHead,
00045 <a class="code" href="classPLDataSource.html">PLDataSource</a> * pDataSrc);
00046
00047 <span class="keywordtype">int</span> readASCIIDecimal(<a class="code" href="classPLDataSource.html">PLDataSource</a> * pDataSrc);
00048
00049 <span class="keywordtype">void</span> skipComment(<a class="code" href="classPLDataSource.html">PLDataSource</a> * pDataSrc);
00050
00051 <span class="keywordtype">void</span> skipPgmASCIISeparators(<a class="code" href="classPLDataSource.html">PLDataSource</a> * pDataSrc);
00052
00053 PLBYTE *readASCIILine(<a class="code" href="classPLDataSource.html">PLDataSource</a> *pDataSrc);
00054
00055 <span class="keywordtype">void</span> readImage (<a class="code" href="classPLBmpBase.html">PLBmpBase</a> * pBmp,
00056 <a class="code" href="classPLDataSource.html">PLDataSource</a> * pDataSrc);
00057
00058 <span class="keywordtype">void</span> readData(<a class="code" href="classPLBmpBase.html">PLBmpBase</a> * pBmp,
00059 <a class="code" href="classPLDataSource.html">PLDataSource</a> * pDataSrc);
00060
00061 <span class="keywordtype">void</span> expandASCIILine
00062 ( PLBYTE * pDest,
00063 <span class="keywordtype">int</span> MaxGrayValue,
00064 <span class="keywordtype">int</span> Width,
00065 <a class="code" href="classPLDataSource.html">PLDataSource</a> * pDataSrc
00066 );
00067
00068 <span class="keywordtype">void</span> expandByteLine
00069 ( PLBYTE * pDest,
00070 <span class="keywordtype">int</span> MaxGrayValue,
00071 <span class="keywordtype">int</span> Width,
00072 <a class="code" href="classPLDataSource.html">PLDataSource</a> * pDataSrc
00073 );
00074
00075 PLBYTE PLPGMDecoder::readASCIIPixel8
00076 ( <span class="keywordtype">int</span> MaxGrayValue,
00077 <a class="code" href="classPLDataSource.html">PLDataSource</a> * pDataSrc
00078 );
00079
00080 PLBYTE m_LastByte;
00081 <span class="keywordtype">bool</span> m_UseLastByte;
00082 PGMHEADER m_PGMHeader;
00083 };
00084
00085 <span class="preprocessor">#endif</span>
00086 <span class="preprocessor"></span><span class="comment">/*</span>
00087 <span class="comment">/--------------------------------------------------------------------</span>
00088 <span class="comment">|</span>
00089 <span class="comment">| $Log: plpgmdec_8h-source.html,v $
00089 <span class="comment">| Revision 1.4 2004/09/15 15:26:29 uzadow
00089 <span class="comment">| Linux compatibility changes, doc update.
00089 <span class="comment">|</span>
00090 <span class="comment">| Revision 1.6 2004/06/19 16:49:07 uzadow</span>
00091 <span class="comment">| Changed GetImage so it works with PLBmpBase</span>
00092 <span class="comment">|</span>
00093 <span class="comment">| Revision 1.5 2002/08/04 20:08:01 uzadow</span>
00094 <span class="comment">| Added PLBmpInfo class, ability to extract metainformation from images without loading the whole image and proper greyscale support.</span>
00095 <span class="comment">|</span>
00096 <span class="comment">| Revision 1.4 2002/03/31 13:36:42 uzadow</span>
00097 <span class="comment">| Updated copyright.</span>
00098 <span class="comment">|</span>
00099 <span class="comment">| Revision 1.3 2001/10/21 17:12:40 uzadow</span>
00100 <span class="comment">| Added PSD decoder beta, removed BPPWanted from all decoders, added PLFilterPixel.</span>
00101 <span class="comment">|</span>
00102 <span class="comment">| Revision 1.2 2001/10/06 22:37:08 uzadow</span>
00103 <span class="comment">| Linux compatibility.</span>
00104 <span class="comment">|</span>
00105 <span class="comment">| Revision 1.1 2001/09/16 19:03:22 uzadow</span>
00106 <span class="comment">| Added global name prefix PL, changed most filenames.</span>
00107 <span class="comment">|</span>
00108 <span class="comment">| Revision 1.4 2000/12/18 22:42:52 uzadow</span>
00109 <span class="comment">| Replaced RGBAPIXEL with PLPixel32.</span>
00110 <span class="comment">|</span>
00111 <span class="comment">| Revision 1.3 2000/05/23 10:19:11 Ulrich von Zadow</span>
00112 <span class="comment">| Minor unix compatibility changes.</span>
00113 <span class="comment">|</span>
00114 <span class="comment">| Revision 1.2 2000/03/21 10:51:16 Ulrich von Zadow</span>
00115 <span class="comment">| Documentation update.</span>
00116 <span class="comment">|</span>
00117 <span class="comment">| Revision 1.1 2000/03/16 13:56:37 Ulrich von Zadow</span>
00118 <span class="comment">| Added pgm decoder by Jose Miguel Buenaposada Biencinto</span>
00119 <span class="comment">|</span>
00120 <span class="comment">|</span>
00121 <span class="comment">\--------------------------------------------------------------------</span>
00122 <span class="comment">*/</span>
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