2002-10-07 09:47:36 -04:00
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<meta name="generator" content="groff -Thtml, see www.gnu.org">
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<title>TIFFReadRawTile</title>
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<h1 align=center>TIFFReadRawTile</h1>
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<a href="#NAME">NAME</a><br>
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<a href="#SYNOPSIS">SYNOPSIS</a><br>
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<a href="#DESCRIPTION">DESCRIPTION</a><br>
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<a href="#RETURN VALUES">RETURN VALUES</a><br>
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<a href="#DIAGNOSTICS">DIAGNOSTICS</a><br>
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<a href="#SEE ALSO">SEE ALSO</a><br>
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<!-- Creator : groff version 1.18 -->
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<!-- CreationDate: Mon Oct 7 17:36:18 2002 -->
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<a name="NAME"></a>
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<h2>NAME</h2>
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<td width="8%"></td>
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<td width="91%">
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<p>TIFFReadRawTile − return an undecoded tile of data
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from an open <small>TIFF</small> file</p>
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</td>
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</table></p>
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<a name="SYNOPSIS"></a>
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<h2>SYNOPSIS</h2>
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<td width="91%">
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<p><b>#include <tiffio.h><br>
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tsize_t TIFFReadRawTile(TIFF* tif, ttile_t tile, tdata_t
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buf, tsize_t size)</b></p>
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</td>
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</table></p>
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<a name="DESCRIPTION"></a>
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<h2>DESCRIPTION</h2>
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<p><table width="100%" border=0 rules="none" frame="void"
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cols="2" cellspacing="0" cellpadding="0">
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<td width="8%"></td>
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<td width="91%">
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<p>Read the contents of the specified tile into the (user
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supplied) data buffer. Note that the value of <i>tile</i> is
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a ‘‘raw tile number.’’ That is, the
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caller must take into account whether or not the data is
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organized in separate planes (<i>PlanarConfiguration</i>=2).
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<i>TIFFComputeTile</i> automatically does this when
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converting an (x,y,z,sample) coordinate quadruple to a tile
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number. To read a full tile of data the data buffer should
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typically be at least as large as the value returned by
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<i>TIFFTileSize</i>.</p>
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</td>
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</table></p>
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<a name="RETURN VALUES"></a>
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<h2>RETURN VALUES</h2>
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<p><table width="100%" border=0 rules="none" frame="void"
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cols="2" cellspacing="0" cellpadding="0">
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<td width="8%"></td>
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<td width="91%">
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<p>The actual number of bytes of data that were placed in
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<i>buf</i> is returned; <i>TIFFReadEncodedTile</i> returns
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−1 if an error was encountered.</p>
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</td>
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</table></p>
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<a name="DIAGNOSTICS"></a>
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<h2>DIAGNOSTICS</h2>
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<p><table width="100%" border=0 rules="none" frame="void"
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cols="2" cellspacing="0" cellpadding="0">
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<tr valign="top" align="left">
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<td width="8%"></td>
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<td width="91%">
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<p>All error messages are directed to the
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<i>TIFFError</i>(3T) routine.</p>
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</td>
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</table></p>
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<a name="SEE ALSO"></a>
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<h2>SEE ALSO</h2>
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<!-- INDENTATION -->
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<p><table width="100%" border=0 rules="none" frame="void"
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cols="2" cellspacing="0" cellpadding="0">
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<tr valign="top" align="left">
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<td width="8%"></td>
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<td width="91%">
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<p><i>libtiff</i>(3T), <i>TIFFOpen</i>(3T),
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<i>TIFFReadEncodedTile</i>(3T), <i>TIFFReadTile</i>(3T),
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<i>TIFFTileSize</i>(3T)</p>
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</td>
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</table></p>
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