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<!-- CreationDate: Mon Mar 13 18:03:08 2006 -->
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<meta name="generator" content="groff -Thtml, see www.gnu.org">
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<title>TIFFBUFFER</title>
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<h1 align=center>TIFFBUFFER</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="#DIAGNOSTICS">DIAGNOSTICS</a><br>
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<a href="#SEE ALSO">SEE ALSO</a><br>
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<hr>
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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>TIFFReadBufferSetup, TIFFWriteBufferSetup − I/O
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buffering control routines</p>
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</td>
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</table>
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<a name="SYNOPSIS"></a>
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<h2>SYNOPSIS</h2>
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<pre><b>#include <tiffio.h>
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int TIFFReadBufferSetup(TIFF *</b><i>tif</i><b>, tdata_t</b> <i>buffer</i><b>, tsize_t</b> <i>size</i><b>);
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int TIFFWriteBufferSetup(TIFF *</b><i>tif</i><b>, tdata_t</b> <i>buffer</i><b>, tsize_t</b> <i>size</i><b>);
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</b></pre>
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</td>
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</table>
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<a name="DESCRIPTION"></a>
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<h2>DESCRIPTION</h2>
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<p>The following routines are provided for client-control of
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the I/O buffers used by the library. Applications need never
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use these routines; they are provided only for
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‘‘intelligent clients’’ that wish to
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optimize memory usage and/or eliminate potential copy
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operations that can occur when working with images that have
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data stored without compression.</p>
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<p><i>TIFFReadBufferSetup</i> sets up the data buffer used
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to read raw (encoded) data from a file. If the specified
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pointer is <small>NULL</small> (zero), then a buffer of the
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appropriate size is allocated. Otherwise the caller must
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guarantee that the buffer is large enough to hold any
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individual strip of raw data. <i>TIFFReadBufferSetup</i>
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returns a non-zero value if the setup was successful and
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zero otherwise.</p>
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<p><i>TIFFWriteBufferSetup</i> sets up the data buffer used
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to write raw (encoded) data to a file. If the specified
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<i>size</i> is −1 then the buffer size is selected to
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hold a complete tile or strip, or at least 8 kilobytes,
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whichever is greater. If the specified <i>buffer</i> is
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<small>NULL</small> (zero), then a buffer of the appropriate
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size is dynamically allocated. <i>TIFFWriteBufferSetup</i>
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returns a non-zero value if the setup was successful and
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zero otherwise.</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><b>%s: No space for data buffer at scanline %ld</b>.
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<i>TIFFReadBufferSetup</i> was unable to dynamically
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allocate space for a data buffer.</p>
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<p><b>%s: No space for output buffer</b>.
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<i>TIFFWriteBufferSetup</i> was unable to dynamically
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allocate space for a data buffer.</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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<table width="100%" border=0 rules="none" frame="void"
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<td width="8%"></td>
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<td width="91%">
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<p><b>libtiff</b>(3TIFF)</p>
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<p>Libtiff library home page:
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<b>http://www.remotesensing.org/libtiff/</b></p>
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</td>
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</table>
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