kc3-lang/libjpeg-turbo/doc/turbojpeg/structtjregion.html
Branch
-
Show log
Commit
-
Hash : 9b01f5a0
Author :
Date : 2024-09-14T11:56:14
TJ: Add func/method for computing xformed buf size
-
doc/turbojpeg/structtjregion.html
-
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "https://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" lang="en-US"> <head> <meta http-equiv="Content-Type" content="text/xhtml;charset=UTF-8"/> <meta http-equiv="X-UA-Compatible" content="IE=11"/> <meta name="generator" content="Doxygen 1.9.8"/> <meta name="viewport" content="width=device-width, initial-scale=1"/> <title>TurboJPEG: tjregion Struct Reference</title> <link href="tabs.css" rel="stylesheet" type="text/css"/> <script type="text/javascript" src="jquery.js"></script> <script type="text/javascript" src="dynsections.js"></script> <link href="search/search.css" rel="stylesheet" type="text/css"/> <script type="text/javascript" src="search/searchdata.js"></script> <script type="text/javascript" src="search/search.js"></script> <link href="doxygen.css" rel="stylesheet" type="text/css" /> <link href="doxygen-extra.css" rel="stylesheet" type="text/css"/> </head> <body> <div id="top"><!-- do not remove this div, it is closed by doxygen! --> <div id="titlearea"> <table cellspacing="0" cellpadding="0"> <tbody> <tr id="projectrow"> <td id="projectalign"> <div id="projectname">TurboJPEG<span id="projectnumber"> 3.1</span> </div> </td> </tr> </tbody> </table> </div> <!-- end header part --> <!-- Generated by Doxygen 1.9.8 --> <script type="text/javascript"> /* @license magnet:?xt=urn:btih:d3d9a9a6595521f9666a5e94cc830dab83b65699&dn=expat.txt MIT */ var searchBox = new SearchBox("searchBox", "search/",'.html'); /* @license-end */ </script> <script type="text/javascript" src="menudata.js"></script> <script type="text/javascript" src="menu.js"></script> <script type="text/javascript"> /* @license magnet:?xt=urn:btih:d3d9a9a6595521f9666a5e94cc830dab83b65699&dn=expat.txt MIT */ $(function() { initMenu('',true,false,'search.php','Search'); $(document).ready(function() { init_search(); }); }); /* @license-end */ </script> <div id="main-nav"></div> <!-- window showing the filter options --> <div id="MSearchSelectWindow" onmouseover="return searchBox.OnSearchSelectShow()" onmouseout="return searchBox.OnSearchSelectHide()" onkeydown="return searchBox.OnSearchSelectKey(event)"> </div> <!-- iframe showing the search results (closed by default) --> <div id="MSearchResultsWindow"> <div id="MSearchResults"> <div class="SRPage"> <div id="SRIndex"> <div id="SRResults"></div> <div class="SRStatus" id="Loading">Loading...</div> <div class="SRStatus" id="Searching">Searching...</div> <div class="SRStatus" id="NoMatches">No Matches</div> </div> </div> </div> </div> </div><!-- top --> <div class="header"> <div class="summary"> <a href="#pub-attribs">Data Fields</a> </div> <div class="headertitle"><div class="title">tjregion Struct Reference<div class="ingroups"><a class="el" href="group___turbo_j_p_e_g.html">TurboJPEG</a></div></div></div> </div><!--header--> <div class="contents"> <p>Cropping region. <a href="structtjregion.html#details">More...</a></p> <p><code>#include <turbojpeg.h></code></p> <table class="memberdecls"> <tr class="heading"><td colspan="2"><h2 class="groupheader"><a id="pub-attribs" name="pub-attribs"></a> Data Fields</h2></td></tr> <tr class="memitem:a4b6a37a93997091b26a75831fa291ad9" id="r_a4b6a37a93997091b26a75831fa291ad9"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="structtjregion.html#a4b6a37a93997091b26a75831fa291ad9">x</a></td></tr> <tr class="memdesc:a4b6a37a93997091b26a75831fa291ad9"><td class="mdescLeft"> </td><td class="mdescRight">The left boundary of the cropping region. <br /></td></tr> <tr class="separator:a4b6a37a93997091b26a75831fa291ad9"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:a7b3e0c24cfe87acc80e334cafdcf22c2" id="r_a7b3e0c24cfe87acc80e334cafdcf22c2"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="structtjregion.html#a7b3e0c24cfe87acc80e334cafdcf22c2">y</a></td></tr> <tr class="memdesc:a7b3e0c24cfe87acc80e334cafdcf22c2"><td class="mdescLeft"> </td><td class="mdescRight">The upper boundary of the cropping region. <br /></td></tr> <tr class="separator:a7b3e0c24cfe87acc80e334cafdcf22c2"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:ab6eb73ceef584fc23c8c8097926dce42" id="r_ab6eb73ceef584fc23c8c8097926dce42"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="structtjregion.html#ab6eb73ceef584fc23c8c8097926dce42">w</a></td></tr> <tr class="memdesc:ab6eb73ceef584fc23c8c8097926dce42"><td class="mdescLeft"> </td><td class="mdescRight">The width of the cropping region. <br /></td></tr> <tr class="separator:ab6eb73ceef584fc23c8c8097926dce42"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:aecefc45a26f4d8b60dd4d825c1710115" id="r_aecefc45a26f4d8b60dd4d825c1710115"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="structtjregion.html#aecefc45a26f4d8b60dd4d825c1710115">h</a></td></tr> <tr class="memdesc:aecefc45a26f4d8b60dd4d825c1710115"><td class="mdescLeft"> </td><td class="mdescRight">The height of the cropping region. <br /></td></tr> <tr class="separator:aecefc45a26f4d8b60dd4d825c1710115"><td class="memSeparator" colspan="2"> </td></tr> </table> <a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2> <div class="textblock"><p>Cropping region. </p> </div><h2 class="groupheader">Field Documentation</h2> <a id="aecefc45a26f4d8b60dd4d825c1710115" name="aecefc45a26f4d8b60dd4d825c1710115"></a> <h2 class="memtitle"><span class="permalink"><a href="#aecefc45a26f4d8b60dd4d825c1710115">◆ </a></span>h</h2> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">int tjregion::h</td> </tr> </table> </div><div class="memdoc"> <p>The height of the cropping region. </p> <p>Setting this to 0 is the equivalent of setting it to the height of the source JPEG image - y. </p> </div> </div> <a id="ab6eb73ceef584fc23c8c8097926dce42" name="ab6eb73ceef584fc23c8c8097926dce42"></a> <h2 class="memtitle"><span class="permalink"><a href="#ab6eb73ceef584fc23c8c8097926dce42">◆ </a></span>w</h2> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">int tjregion::w</td> </tr> </table> </div><div class="memdoc"> <p>The width of the cropping region. </p> <p>Setting this to 0 is the equivalent of setting it to the width of the source JPEG image - x. </p> </div> </div> <a id="a4b6a37a93997091b26a75831fa291ad9" name="a4b6a37a93997091b26a75831fa291ad9"></a> <h2 class="memtitle"><span class="permalink"><a href="#a4b6a37a93997091b26a75831fa291ad9">◆ </a></span>x</h2> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">int tjregion::x</td> </tr> </table> </div><div class="memdoc"> <p>The left boundary of the cropping region. </p> <p>For lossless transformation, this must be evenly divisible by the iMCU width (see <a class="el" href="group___turbo_j_p_e_g.html#ga9e61e7cd47a15a173283ba94e781308c" title="iMCU width (in pixels) for a given level of chrominance subsampling">tjMCUWidth</a>) of the destination image. For decompression, this must be evenly divisible by the scaled iMCU width of the source image. </p> </div> </div> <a id="a7b3e0c24cfe87acc80e334cafdcf22c2" name="a7b3e0c24cfe87acc80e334cafdcf22c2"></a> <h2 class="memtitle"><span class="permalink"><a href="#a7b3e0c24cfe87acc80e334cafdcf22c2">◆ </a></span>y</h2> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">int tjregion::y</td> </tr> </table> </div><div class="memdoc"> <p>The upper boundary of the cropping region. </p> <p>For lossless transformation, this must be evenly divisible by the iMCU height (see <a class="el" href="group___turbo_j_p_e_g.html#gabd247bb9fecb393eca57366feb8327bf" title="iMCU height (in pixels) for a given level of chrominance subsampling">tjMCUHeight</a>) of the destination image. </p> </div> </div> <hr/>The documentation for this struct was generated from the following file:<ul> <li><b>turbojpeg.h</b></li> </ul> </div><!-- contents --> <!-- start footer part --> <hr class="footer"/><address class="footer"><small> Generated by <a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.8 </small></address> </body> </html>