libtiff/html/man/TIFFReadEncodedStrip.3t.html
2003-11-27 15:07:01 +00:00

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<h1 align=center>TIFFReadEncodedStrip</h1>
<a href="#NAME">NAME</a><br>
<a href="#SYNOPSIS">SYNOPSIS</a><br>
<a href="#DESCRIPTION">DESCRIPTION</a><br>
<a href="#NOTES">NOTES</a><br>
<a href="#RETURN VALUES">RETURN VALUES</a><br>
<a href="#DIAGNOSTICS">DIAGNOSTICS</a><br>
<a href="#SEE ALSO">SEE ALSO</a><br>
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<a name="NAME"></a>
<h2>NAME</h2>
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TIFFReadEncodedStrip - read and decode a strip of data from an open <small>TIFF</small> file</td></table>
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<h2>SYNOPSIS</h2>
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<b>#include &lt;tiffio.h&gt;<br>
tsize_t TIFFReadEncodedStrip(TIFF* tif, tstrip_t strip,
tdata_t buf, tsize_t size)</b></td></table>
<a name="DESCRIPTION"></a>
<h2>DESCRIPTION</h2>
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Read the specified strip of data and place up to <i>size</i>
bytes of decompressed information in the (user supplied)
data buffer.</td></table>
<a name="NOTES"></a>
<h2>NOTES</h2>
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The value of <i>strip</i> is a ``raw strip number.'' That
is, the caller must take into account whether or not the
data are organized in separate planes
(<i>PlanarConfiguration</i>=2). To read a full strip of data
the data buffer should typically be at least as large as the
number returned by <i>TIFFStripSize</i>(3T).</td></table>
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The library attempts to hide bit- and byte-ordering
differences between the image and the native machine by
converting data to the native machine order. Bit reversal is
done if the <i>FillOrder</i> tag is opposite to the native
machine bit order. 16- and 32-bit samples are automatically
byte-swapped if the file was written with a byte order
opposite to the native machine byte order,</td></table>
<a name="RETURN VALUES"></a>
<h2>RETURN VALUES</h2>
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The actual number of bytes of data that were placed in
<i>buf</i> is returned; <i>TIFFReadEncodedStrip</i> returns
-1 if an error was encountered.</td></table>
<a name="DIAGNOSTICS"></a>
<h2>DIAGNOSTICS</h2>
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All error messages are directed to the <i>TIFFError</i>(3T)
routine.</td></table>
<a name="SEE ALSO"></a>
<h2>SEE ALSO</h2>
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<i>libtiff</i>(3T), <i>TIFFOpen</i>(3T),
<i>TIFFReadRawStrip</i>(3T),
<i>TIFFReadScanline</i>(3T)</td></table>
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