134 lines
4.2 KiB
HTML
134 lines
4.2 KiB
HTML
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<!-- CreationDate: Sat Feb 24 18:37:16 2007 -->
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<meta name="generator" content="groff -Thtml, see www.gnu.org">
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<title>TIFFReadEncodedStrip</title>
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<body>
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<h1 align=center>TIFFReadEncodedStrip</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="#NOTES">NOTES</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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<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><big>TIFFReadEncodedStrip − read and decode a strip
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of data from an open</big> TIFF <big>file</big></p>
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<a name="SYNOPSIS"></a>
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<h2>SYNOPSIS</h2>
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<p><big><b>#include <tiffio.h></b></big></p>
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<p><big><b>tsize_t TIFFReadEncodedStrip(TIFF
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*</b><i>tif</i><b>, tstrip_t</b> <i>strip</i><b>,
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tdata_t</b> <i>buf</i><b>, tsize_t</b>
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<i>size</i><b>)</b></big></p>
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</td>
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<a name="DESCRIPTION"></a>
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<h2>DESCRIPTION</h2>
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<td width="8%"></td>
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<td width="91%">
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<p><big>Read the specified strip of data and place up to
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<i>size</i> bytes of decompressed information in the (user
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supplied) data buffer.</big></p>
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</td>
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</table>
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<a name="NOTES"></a>
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<h2>NOTES</h2>
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<td width="8%"></td>
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<td width="91%">
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<p><big>The value of <i>strip</i> is a ‘‘raw
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strip number.’’ That is, the caller must take
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into account whether or not the data are organized in
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separate planes (<i>PlanarConfiguration</i>=2). To read a
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full strip of data the data buffer should typically be at
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least as large as the number returned by
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<b>TIFFStripSize</b>(3TIFF). If the -1 passed in <i>size</i>
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parameter, the whole strip will be read. You should be sure
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you have enough space allocated for the buffer.</big></p>
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<p><big>The library attempts to hide bit- and byte-ordering
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differences between the image and the native machine by
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converting data to the native machine order. Bit reversal is
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done if the <i>FillOrder</i> tag is opposite to the native
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machine bit order. 16- and 32-bit samples are automatically
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byte-swapped if the file was written with a byte order
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opposite to the native machine byte order,</big></p>
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</td>
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</table>
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<a name="RETURN VALUES"></a>
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<h2>RETURN VALUES</h2>
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<p><big>The actual number of bytes of data that were placed
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in <i>buf</i> is returned; <i>TIFFReadEncodedStrip</i>
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returns −1 if an error was encountered.</big></p>
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</td>
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</table>
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<a name="DIAGNOSTICS"></a>
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<h2>DIAGNOSTICS</h2>
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<td width="8%"></td>
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<td width="91%">
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<p><big>All error messages are directed to the
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<b>TIFFError</b>(3TIFF) routine.</big></p>
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</td>
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</table>
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<a name="SEE ALSO"></a>
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<h2>SEE ALSO</h2>
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<td width="8%"></td>
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<td width="91%">
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<p><big><b>TIFFOpen</b>(3TIFF),
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<b>TIFFReadRawStrip</b>(3TIFF),
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<b>TIFFReadScanline</b>(3TIFF),
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<b>libtiff</b>(3TIFF)</big></p>
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<p><big>Libtiff library home page:
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<b>http://www.simplesystems.org/libtiff/</b></big></p>
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</td>
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</table>
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<hr>
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</body>
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</html>
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