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<h1>pltiffdec.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: pltiffdec_8h-source.html,v 1.4 2004/09/15 15:26:32 uzadow Exp $</span>
00005 <span class="comment">|</span>
00006 <span class="comment">| Copyright (c) 1996-2002 Ulrich von Zadow</span>
00007 <span class="comment">|</span>
00008 <span class="comment">\--------------------------------------------------------------------</span>
00009 <span class="comment">*/</span>
00010
00011 <span class="preprocessor">#ifndef INCL_PLTIFFDEC</span>
00012 <span class="preprocessor"></span><span class="preprocessor">#define INCL_PLTIFFDEC</span>
00013 <span class="preprocessor"></span>
00014 <span class="preprocessor">#ifndef INCL_PLPICDEC</span>
00015 <span class="preprocessor"></span><span class="preprocessor">#include "plpicdec.h"</span>
00016 <span class="preprocessor">#endif</span>
00017 <span class="preprocessor"></span>
00018 <span class="preprocessor">#ifndef INCL_PLPOINT</span>
00019 <span class="preprocessor"></span><span class="preprocessor">#include "plpoint.h"</span>
00020 <span class="preprocessor">#endif</span>
00021 <span class="preprocessor"></span>
00022 <span class="keyword">extern</span> <span class="stringliteral">"C"</span>
00023 {
00024 <span class="preprocessor">#include "tiff.h"</span>
00025 <span class="preprocessor">#include "tiffio.h"</span>
00026 }
00027 <span class="comment"></span>
00028 <span class="comment">//! TIFF file decoder. Uses LIBTIFF to do the actual conversion.</span>
00029 <span class="comment">//! Supports 1, 8, 24 and 32 bits per pixel as output formats.</span>
<a name="l00030"></a><a class="code" href="classPLTIFFDecoder.html">00030</a> <span class="comment"></span><span class="keyword">class </span><a class="code" href="classPLTIFFDecoder.html">PLTIFFDecoder</a> : <span class="keyword">public</span> <a class="code" href="classPLPicDecoder.html">PLPicDecoder</a>
00031 {
00032
00033 <span class="keyword">friend</span> <span class="keyword">class </span>_tiff_helper;
00034 <span class="keyword">friend</span> <span class="keyword">class </span><a class="code" href="classPLTIFFEncoder.html">PLTIFFEncoder</a>;
00035
00036 <span class="keyword">public</span>:<span class="comment"></span>
00037 <span class="comment"> //! Creates a decoder</span>
00038 <span class="comment"></span> <a class="code" href="classPLTIFFDecoder.html">PLTIFFDecoder</a>
00039 ();
00040 <span class="comment"></span>
00041 <span class="comment"> //! Destroys a decoder</span>
00042 <span class="comment"></span> <span class="keyword">virtual</span> ~<a class="code" href="classPLTIFFDecoder.html">PLTIFFDecoder</a>
00043 ();
00044 <span class="comment"></span>
00045 <span class="comment"> //!</span>
00046 <span class="comment"></span> <span class="keyword">virtual</span> <span class="keywordtype">void</span> Open (<a class="code" href="classPLDataSource.html">PLDataSource</a> * pDataSrc);
00047 <span class="comment"></span>
00048 <span class="comment"> //! Fills the bitmap with the image. </span>
00049 <span class="comment"></span> <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="classPLTIFFDecoder.html#a3">GetImage</a> (<a class="code" href="classPLBmpBase.html">PLBmpBase</a> & Bmp);
00050 <span class="comment"></span>
00051 <span class="comment"> //!</span>
00052 <span class="comment"></span> <span class="keyword">virtual</span> <span class="keywordtype">void</span> Close ();
00053
00054 <span class="keywordtype">int</span> GetField( <span class="keywordtype">int</span> tag_id, ... );<span class="comment"></span>
00055 <span class="comment"> //! this is this first argument to most libtiff's routines</span>
00056 <span class="comment"> //! use at your own risk; you've been warned!</span>
<a name="l00057"></a><a class="code" href="classPLTIFFDecoder.html#a6">00057</a> <span class="comment"></span> TIFF* <a class="code" href="classPLTIFFDecoder.html#a6">GetTIFFHandle</a>() { <span class="keywordflow">return</span> m_pTif; }
00058
00059 <span class="keyword">private</span>:
00060 <span class="comment">// these 2 helpers dedicated to hi/low bit-depths respectively</span>
00061 <span class="keywordtype">void</span> doHiColor
00062 ( TIFF * tif,
00063 <a class="code" href="classPLBmpBase.html">PLBmpBase</a> * pBmp,
00064 uint16 SamplePerPixel
00065 );
00066
00067 <span class="keywordtype">void</span> doLoColor
00068 ( TIFF * tif,
00069 <a class="code" href="classPLBmpBase.html">PLBmpBase</a> * pBmp
00070 );
00071
00072 <span class="keyword">const</span> <a class="code" href="classPLPoint.html">PLPoint</a> getResolution (TIFF* tif);
00073
00074 <span class="comment">// Callback from the TIFF library.</span>
00075 <span class="comment">// Should be accessed only by the TIFF decoder and libtiff.</span>
00076 <span class="keyword">static</span> <span class="keywordtype">void</span> Win32WarningHandler
00077 ( <span class="keyword">const</span> <span class="keywordtype">char</span>* module,
00078 <span class="keyword">const</span> <span class="keywordtype">char</span>* fmt,
00079 va_list ap
00080 );
00081
00082 <span class="comment">// Callback from the TIFF library.</span>
00083 <span class="comment">// Should be accessed only by the TIFF decoder and libtiff.</span>
00084 <span class="keyword">static</span> <span class="keywordtype">void</span> Win32ErrorHandler
00085 ( <span class="keyword">const</span> <span class="keywordtype">char</span>* module,
00086 <span class="keyword">const</span> <span class="keywordtype">char</span>* fmt,
00087 va_list ap
00088 );
00089
00090 <span class="keyword">private</span>:
00091 <span class="comment">// Temporary storage for an error message. </span>
00092 <span class="comment">// Used in the callbacks, so it's static.</span>
00093 <span class="keyword">static</span> <span class="keywordtype">char</span> m_szLastErr[256];
00094
00095 TIFF* m_pTif;
00096 };
00097
00098
00099 <span class="preprocessor">#endif</span>
00100 <span class="preprocessor"></span><span class="comment">/*</span>
00101 <span class="comment">/--------------------------------------------------------------------</span>
00102 <span class="comment">|</span>
00103 <span class="comment">| $Log: pltiffdec_8h-source.html,v $
00103 <span class="comment">| Revision 1.4 2004/09/15 15:26:32 uzadow
00103 <span class="comment">| Linux compatibility changes, doc update.
00103 <span class="comment">|</span>
00104 <span class="comment">| Revision 1.7 2004/06/19 16:49:07 uzadow</span>
00105 <span class="comment">| Changed GetImage so it works with PLBmpBase</span>
00106 <span class="comment">|</span>
00107 <span class="comment">| Revision 1.6 2004/06/06 12:56:38 uzadow</span>
00108 <span class="comment">| Doxygenified documentation.</span>
00109 <span class="comment">|</span>
00110 <span class="comment">| Revision 1.5 2002/08/04 20:08:01 uzadow</span>
00111 <span class="comment">| Added PLBmpInfo class, ability to extract metainformation from images without loading the whole image and proper greyscale support.</span>
00112 <span class="comment">|</span>
00113 <span class="comment">| Revision 1.4 2002/03/31 13:36:42 uzadow</span>
00114 <span class="comment">| Updated copyright.</span>
00115 <span class="comment">|</span>
00116 <span class="comment">| Revision 1.3 2001/10/21 17:12:40 uzadow</span>
00117 <span class="comment">| Added PSD decoder beta, removed BPPWanted from all decoders, added PLFilterPixel.</span>
00118 <span class="comment">|</span>
00119 <span class="comment">| Revision 1.2 2001/10/17 13:19:47 uzadow</span>
00120 <span class="comment">| Added support for photoshop tiff alpha channels.</span>
00121 <span class="comment">|</span>
00122 <span class="comment">| Revision 1.1 2001/09/16 19:03:22 uzadow</span>
00123 <span class="comment">| Added global name prefix PL, changed most filenames.</span>
00124 <span class="comment">|</span>
00125 <span class="comment">| Revision 1.7 2000/12/18 22:42:52 uzadow</span>
00126 <span class="comment">| Replaced RGBAPIXEL with PLPixel32.</span>
00127 <span class="comment">|</span>
00128 <span class="comment">| Revision 1.6 2000/01/16 20:43:15 anonymous</span>
00129 <span class="comment">| Removed MFC dependencies</span>
00130 <span class="comment">|</span>
00131 <span class="comment">| Revision 1.5 2000/01/08 15:56:12 Ulrich von Zadow</span>
00132 <span class="comment">| Made sure change logging works in every file.</span>
00133 <span class="comment">|</span>
00134 <span class="comment">| Revision 1.4 1999/10/03 18:50:52 Ulrich von Zadow</span>
00135 <span class="comment">| Added automatic logging of changes.</span>
00136 <span class="comment">|</span>
00137 <span class="comment">|</span>
00138 <span class="comment">--------------------------------------------------------------------</span>
00139 <span class="comment">*/</span>
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