<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" lang="en_US" xml:lang="en_US"> <head> <title>kimgio: tiffr.cpp Source File (kimgio)</title> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <meta http-equiv="Content-Style-Type" content="text/css" /> <meta http-equiv="pics-label" content='(pics-1.1 "http://www.icra.org/ratingsv02.html" comment "ICRAonline DE v2.0" l gen true for "http://www.kde.org" r (nz 1 vz 1 lz 1 oz 1 cb 1) "http://www.rsac.org/ratingsv01.html" l gen true for "http://www.kde.org" r (n 0 s 0 v 0 l 0))' /> <meta name="trademark" content="KDE e.V." /> <meta name="description" content="K Desktop Environment Homepage, KDE.org" /> <meta name="MSSmartTagsPreventParsing" content="true" /> <meta name="robots" content="all" /> <link rel="shortcut icon" href="../../favicon.ico" /> <link rel="stylesheet" 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name="content"></a> <!-- Generated by Doxygen 1.7.4 --> <div class="header"> <div class="headertitle"> <div class="title">tiffr.cpp</div> </div> </div> <div class="contents"> <div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">// This library is distributed under the conditions of the GNU LGPL.</span> <a name="l00002"></a>00002 <a name="l00003"></a>00003 <span class="preprocessor">#include "config.h"</span> <a name="l00004"></a>00004 <a name="l00005"></a>00005 <span class="preprocessor">#ifdef HAVE_LIBTIFF</span> <a name="l00006"></a>00006 <span class="preprocessor"></span> <a name="l00007"></a>00007 <span class="preprocessor">#include <tiffio.h></span> <a name="l00008"></a>00008 <a name="l00009"></a>00009 <span class="preprocessor">#include <qimage.h></span> <a name="l00010"></a>00010 <span class="preprocessor">#include <qfile.h></span> <a name="l00011"></a>00011 <span class="preprocessor">#include <kdelibs_export.h></span> <a name="l00012"></a>00012 <a name="l00013"></a>00013 <span class="preprocessor">#include <assert.h></span> <a name="l00014"></a>00014 <a name="l00015"></a>00015 <span class="preprocessor">#include "tiffr.h"</span> <a name="l00016"></a>00016 <a name="l00017"></a>00017 <span class="keyword">static</span> tsize_t tiff_read( thandle_t handle, tdata_t buf, tsize_t size ) <a name="l00018"></a>00018 { <a name="l00019"></a>00019 <a class="codeRef" href="qiodevice.html">QIODevice</a> *dev = <span class="keyword">reinterpret_cast<</span><a class="codeRef" href="qiodevice.html">QIODevice</a> *<span class="keyword">></span>( handle ); <a name="l00020"></a>00020 <span class="keywordflow">return</span> dev-><a class="codeRef" href="qiodevice.html#readBlock">readBlock</a>( reinterpret_cast<char *>( buf ), size ); <a name="l00021"></a>00021 } <a name="l00022"></a>00022 <a name="l00023"></a>00023 <span class="keyword">static</span> tsize_t tiff_write( thandle_t, tdata_t, tsize_t ) <a name="l00024"></a>00024 { <a name="l00025"></a>00025 <span class="keywordflow">return</span> 0; <a name="l00026"></a>00026 } <a name="l00027"></a>00027 <a name="l00028"></a>00028 <span class="keyword">static</span> toff_t tiff_seek( thandle_t handle, toff_t off, <span class="keywordtype">int</span> whence ) <a name="l00029"></a>00029 { <a name="l00030"></a>00030 <a class="codeRef" href="qiodevice.html">QIODevice</a> *dev = <span class="keyword">reinterpret_cast<</span><a class="codeRef" href="qiodevice.html">QIODevice</a> *<span class="keyword">></span>( handle ); <a name="l00031"></a>00031 <a name="l00032"></a>00032 <span class="keywordflow">if</span> ( whence == SEEK_CUR ) <a name="l00033"></a>00033 off += dev-><a class="codeRef" href="qiodevice.html#at">at</a>(); <a name="l00034"></a>00034 <span class="keywordflow">else</span> <span class="keywordflow">if</span> ( whence == SEEK_END ) <a name="l00035"></a>00035 off += dev-><a class="codeRef" href="qiodevice.html#size">size</a>(); <a name="l00036"></a>00036 <a name="l00037"></a>00037 <span class="keywordflow">if</span> ( !dev-><a class="codeRef" href="qiodevice.html#at">at</a>( off ) ) <a name="l00038"></a>00038 <span class="keywordflow">return</span> ( toff_t )-1; <a name="l00039"></a>00039 <a name="l00040"></a>00040 <span class="keywordflow">return</span> dev-><a class="codeRef" href="qiodevice.html#at">at</a>(); <a name="l00041"></a>00041 } <a name="l00042"></a>00042 <a name="l00043"></a>00043 <span class="keyword">static</span> toff_t tiff_size( thandle_t handle ) <a name="l00044"></a>00044 { <a name="l00045"></a>00045 <a class="codeRef" href="qiodevice.html">QIODevice</a> *dev = <span class="keyword">reinterpret_cast<</span><a class="codeRef" href="qiodevice.html">QIODevice</a> *<span class="keyword">></span>( handle ); <a name="l00046"></a>00046 <span class="keywordflow">return</span> dev-><a class="codeRef" href="qiodevice.html#size">size</a>(); <a name="l00047"></a>00047 } <a name="l00048"></a>00048 <a name="l00049"></a>00049 <span class="keyword">static</span> <span class="keywordtype">int</span> tiff_close( thandle_t ) <a name="l00050"></a>00050 { <a name="l00051"></a>00051 <span class="keywordflow">return</span> 0; <a name="l00052"></a>00052 } <a name="l00053"></a>00053 <a name="l00054"></a>00054 <span class="keyword">static</span> <span class="keywordtype">int</span> tiff_map( thandle_t, tdata_t *, toff_t * ) <a name="l00055"></a>00055 { <a name="l00056"></a>00056 <span class="keywordflow">return</span> 0; <a name="l00057"></a>00057 } <a name="l00058"></a>00058 <a name="l00059"></a>00059 <span class="keyword">static</span> <span class="keywordtype">void</span> tiff_unmap( thandle_t, tdata_t, toff_t ) <a name="l00060"></a>00060 { <a name="l00061"></a>00061 } <a name="l00062"></a>00062 <a name="l00063"></a>00063 KDE_EXPORT <span class="keywordtype">void</span> kimgio_tiff_read( <a class="codeRef" href="qimageio.html">QImageIO</a> *io ) <a name="l00064"></a>00064 { <a name="l00065"></a>00065 TIFF *tiff; <a name="l00066"></a>00066 uint32 width, height; <a name="l00067"></a>00067 uint32 *data; <a name="l00068"></a>00068 <a name="l00069"></a>00069 <span class="comment">// FIXME: use qdatastream</span> <a name="l00070"></a>00070 <a name="l00071"></a>00071 <span class="comment">// open file</span> <a name="l00072"></a>00072 tiff = TIFFClientOpen( <a class="codeRef" href="qfile.html#encodeName">QFile::encodeName</a>( io-><a class="codeRef" href="qimageio.html#fileName">fileName</a>() ), <span class="stringliteral">"r"</span>, <a name="l00073"></a>00073 ( thandle_t )io-><a class="codeRef" href="qimageio.html#ioDevice">ioDevice</a>(), <a name="l00074"></a>00074 tiff_read, tiff_write, tiff_seek, tiff_close, <a name="l00075"></a>00075 tiff_size, tiff_map, tiff_unmap ); <a name="l00076"></a>00076 <a name="l00077"></a>00077 if( tiff == 0 ) { <a name="l00078"></a>00078 <span class="keywordflow">return</span>; <a name="l00079"></a>00079 } <a name="l00080"></a>00080 <a name="l00081"></a>00081 <span class="comment">// create image with loaded dimensions</span> <a name="l00082"></a>00082 <span class="keywordflow">if</span>( TIFFGetField( tiff, TIFFTAG_IMAGEWIDTH, &width ) != 1 <a name="l00083"></a>00083 || TIFFGetField( tiff, TIFFTAG_IMAGELENGTH, &height ) != 1 ) <a name="l00084"></a>00084 <span class="keywordflow">return</span>; <a name="l00085"></a>00085 <a name="l00086"></a>00086 <a class="codeRef" href="qimage.html">QImage</a> <a class="codeRef" href="qimageio.html#image">image</a>( width, height, 32 ); <a name="l00087"></a>00087 <span class="keywordflow">if</span>( <a class="codeRef" href="qimageio.html#image">image</a>.isNull()) { <a name="l00088"></a>00088 TIFFClose( tiff ); <a name="l00089"></a>00089 <span class="keywordflow">return</span>; <a name="l00090"></a>00090 } <a name="l00091"></a>00091 data = (uint32 *)<a class="codeRef" href="qimageio.html#image">image</a>.bits(); <a name="l00092"></a>00092 <a name="l00093"></a>00093 <span class="comment">//Sven: changed to %ld for 64bit machines</span> <a name="l00094"></a>00094 <span class="comment">//debug( "unsigned size: %ld, uint32 size: %ld",</span> <a name="l00095"></a>00095 <span class="comment">// (long)sizeof(unsigned), (long)sizeof(uint32) );</span> <a name="l00096"></a>00096 <a name="l00097"></a>00097 <span class="comment">// read data</span> <a name="l00098"></a>00098 <span class="keywordtype">bool</span> stat =TIFFReadRGBAImage( tiff, width, height, data ); <a name="l00099"></a>00099 <a name="l00100"></a>00100 <span class="keywordflow">if</span>( stat == 0 ) { <a name="l00101"></a>00101 TIFFClose( tiff ); <a name="l00102"></a>00102 <span class="keywordflow">return</span>; <a name="l00103"></a>00103 } <a name="l00104"></a>00104 <a name="l00105"></a>00105 <span class="comment">// reverse red and blue</span> <a name="l00106"></a>00106 <span class="keywordflow">for</span>( <span class="keywordtype">unsigned</span> i = 0; i < width * height; ++i ) <a name="l00107"></a>00107 { <a name="l00108"></a>00108 uint32 red = ( 0x00FF0000 & data[i] ) >> 16; <a name="l00109"></a>00109 uint32 blue = ( 0x000000FF & data[i] ) << 16; <a name="l00110"></a>00110 data[i] &= 0xFF00FF00; <a name="l00111"></a>00111 data[i] += red + blue; <a name="l00112"></a>00112 } <a name="l00113"></a>00113 <a name="l00114"></a>00114 <span class="comment">// reverse image (it's upside down)</span> <a name="l00115"></a>00115 <span class="keywordflow">for</span>( <span class="keywordtype">unsigned</span> ctr = 0; ctr < (height>>1); ) { <a name="l00116"></a>00116 <span class="keywordtype">unsigned</span> *line1 = (<span class="keywordtype">unsigned</span> *)<a class="codeRef" href="qimageio.html#image">image</a>.scanLine( ctr ); <a name="l00117"></a>00117 <span class="keywordtype">unsigned</span> *line2 = (<span class="keywordtype">unsigned</span> *)<a class="codeRef" href="qimageio.html#image">image</a>.scanLine( height <a name="l00118"></a>00118 - ( ++ctr ) ); <a name="l00119"></a>00119 <a name="l00120"></a>00120 <span class="keywordflow">for</span>( <span class="keywordtype">unsigned</span> x = 0; x < width; x++ ) { <a name="l00121"></a>00121 <span class="keywordtype">int</span> temp = *line1; <a name="l00122"></a>00122 *line1 = *line2; <a name="l00123"></a>00123 *line2 = temp; <a name="l00124"></a>00124 line1++; <a name="l00125"></a>00125 line2++; <a name="l00126"></a>00126 } <a name="l00127"></a>00127 <a name="l00128"></a>00128 <span class="comment">// swap rows</span> <a name="l00129"></a>00129 } <a name="l00130"></a>00130 <a name="l00131"></a>00131 <span class="comment">// set channel order to Qt order</span> <a name="l00132"></a>00132 <span class="comment">// FIXME: Right now they are the same, but will it change?</span> <a name="l00133"></a>00133 <a name="l00134"></a>00134 <span class="comment">// for( int ctr = (image.numBytes() / sizeof(uint32))+1; ctr ; ctr-- ) {</span> <a name="l00135"></a>00135 <span class="comment">// // TODO: manage alpha with TIFFGetA</span> <a name="l00136"></a>00136 <span class="comment">// *data = qRgb( TIFFGetR( *data ), </span> <a name="l00137"></a>00137 <span class="comment">// TIFFGetG( *data ), TIFFGetB( *data ) );</span> <a name="l00138"></a>00138 <span class="comment">// data++;</span> <a name="l00139"></a>00139 <span class="comment">// }</span> <a name="l00140"></a>00140 TIFFClose( tiff ); <a name="l00141"></a>00141 <a name="l00142"></a>00142 io-><a class="codeRef" href="qimageio.html#setImage">setImage</a>( <a class="codeRef" href="qimageio.html#image">image</a> ); <a name="l00143"></a>00143 io-><a class="codeRef" href="qimageio.html#setStatus">setStatus</a> ( 0 ); <a name="l00144"></a>00144 } <a name="l00145"></a>00145 <a name="l00146"></a>00146 KDE_EXPORT <span class="keywordtype">void</span> kimgio_tiff_write( <a class="codeRef" href="qimageio.html">QImageIO</a> * ) <a name="l00147"></a>00147 { <a name="l00148"></a>00148 <span class="comment">// TODO: stub</span> <a 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