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gerrit-public.fairphone.software / platform / external / libjpeg-turbo / 16962c11327f24f272b1ecfcd8daf7374e547eca / . / doc / html / structtjregion.html
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DRCf610d612013-04-26 10:33:29 +0000[diff] [blame]22 <div id="projectname">TurboJPEG&#160;<span id="projectnumber">1.4</span></div>
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63<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>
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65<div class="contents">
66<!-- doxytag: class="tjregion" -->
67<p>Cropping region.
68 <a href="structtjregion.html#details">More...</a></p>
69
70<p><code>#include &lt;turbojpeg.h&gt;</code></p>
71<table class="memberdecls">
72<tr><td colspan="2"><h2><a name="pub-attribs"></a>
73Data Fields</h2></td></tr>
74<tr><td class="memItemLeft" align="right" valign="top">int&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structtjregion.html#a4b6a37a93997091b26a75831fa291ad9">x</a></td></tr>
75<tr><td class="mdescLeft">&#160;</td><td class="mdescRight">The left boundary of the cropping region. <a href="#a4b6a37a93997091b26a75831fa291ad9"></a><br/></td></tr>
76<tr><td class="memItemLeft" align="right" valign="top">int&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structtjregion.html#a7b3e0c24cfe87acc80e334cafdcf22c2">y</a></td></tr>
77<tr><td class="mdescLeft">&#160;</td><td class="mdescRight">The upper boundary of the cropping region. <a href="#a7b3e0c24cfe87acc80e334cafdcf22c2"></a><br/></td></tr>
78<tr><td class="memItemLeft" align="right" valign="top">int&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structtjregion.html#ab6eb73ceef584fc23c8c8097926dce42">w</a></td></tr>
79<tr><td class="mdescLeft">&#160;</td><td class="mdescRight">The width of the cropping region. <a href="#ab6eb73ceef584fc23c8c8097926dce42"></a><br/></td></tr>
80<tr><td class="memItemLeft" align="right" valign="top">int&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structtjregion.html#aecefc45a26f4d8b60dd4d825c1710115">h</a></td></tr>
81<tr><td class="mdescLeft">&#160;</td><td class="mdescRight">The height of the cropping region. <a href="#aecefc45a26f4d8b60dd4d825c1710115"></a><br/></td></tr>
82</table>
83<hr/><a name="details" id="details"></a><h2>Detailed Description</h2>
84<div class="textblock"><p>Cropping region. </p>
85</div><hr/><h2>Field Documentation</h2>
86<a class="anchor" id="aecefc45a26f4d8b60dd4d825c1710115"></a><!-- doxytag: member="tjregion::h" ref="aecefc45a26f4d8b60dd4d825c1710115" args="" -->
87<div class="memitem">
88<div class="memproto">
89 <table class="memname">
90 <tr>
91 <td class="memname">int <a class="el" href="structtjregion.html#aecefc45a26f4d8b60dd4d825c1710115">tjregion::h</a></td>
92 </tr>
93 </table>
94</div>
95<div class="memdoc">
96
97<p>The height of the cropping region. </p>
98<p>Setting this to 0 is the equivalent of setting it to the height of the source JPEG image - y. </p>
99
100</div>
101</div>
102<a class="anchor" id="ab6eb73ceef584fc23c8c8097926dce42"></a><!-- doxytag: member="tjregion::w" ref="ab6eb73ceef584fc23c8c8097926dce42" args="" -->
103<div class="memitem">
104<div class="memproto">
105 <table class="memname">
106 <tr>
107 <td class="memname">int <a class="el" href="structtjregion.html#ab6eb73ceef584fc23c8c8097926dce42">tjregion::w</a></td>
108 </tr>
109 </table>
110</div>
111<div class="memdoc">
112
113<p>The width of the cropping region. </p>
114<p>Setting this to 0 is the equivalent of setting it to the width of the source JPEG image - x. </p>
115
116</div>
117</div>
118<a class="anchor" id="a4b6a37a93997091b26a75831fa291ad9"></a><!-- doxytag: member="tjregion::x" ref="a4b6a37a93997091b26a75831fa291ad9" args="" -->
119<div class="memitem">
120<div class="memproto">
121 <table class="memname">
122 <tr>
123 <td class="memname">int <a class="el" href="structtjregion.html#a4b6a37a93997091b26a75831fa291ad9">tjregion::x</a></td>
124 </tr>
125 </table>
126</div>
127<div class="memdoc">
128
129<p>The left boundary of the cropping region. </p>
130<p>This must be evenly divisible by the MCU block width (see <a class="el" href="group___turbo_j_p_e_g.html#ga9e61e7cd47a15a173283ba94e781308c" title="MCU block width (in pixels) for a given level of chrominance subsampling.">tjMCUWidth</a>.) </p>
131
132</div>
133</div>
134<a class="anchor" id="a7b3e0c24cfe87acc80e334cafdcf22c2"></a><!-- doxytag: member="tjregion::y" ref="a7b3e0c24cfe87acc80e334cafdcf22c2" args="" -->
135<div class="memitem">
136<div class="memproto">
137 <table class="memname">
138 <tr>
139 <td class="memname">int <a class="el" href="structtjregion.html#a7b3e0c24cfe87acc80e334cafdcf22c2">tjregion::y</a></td>
140 </tr>
141 </table>
142</div>
143<div class="memdoc">
144
145<p>The upper boundary of the cropping region. </p>
146<p>This must be evenly divisible by the MCU block height (see <a class="el" href="group___turbo_j_p_e_g.html#gabd247bb9fecb393eca57366feb8327bf" title="MCU block height (in pixels) for a given level of chrominance subsampling.">tjMCUHeight</a>.) </p>
147
148</div>
149</div>
150<hr/>The documentation for this struct was generated from the following file:<ul>
151<li>turbojpeg.h</li>
152</ul>
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