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<title>TIFFBUFFER</title>
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</head>
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<body>
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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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<p style="margin-left:11%; margin-top: 1em">TIFFReadBufferSetup,
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TIFFWriteBufferSetup − I/O buffering control
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routines</p>
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<a name="SYNOPSIS"></a>
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<h2>SYNOPSIS</h2>
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<p style="margin-left:11%; margin-top: 1em"><b>#include
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<tiffio.h></b></p>
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<p style="margin-left:11%; margin-top: 1em"><b>int
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TIFFReadBufferSetup(TIFF *</b><i>tif</i><b>, tdata_t</b>
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<i>buffer</i><b>, tsize_t</b> <i>size</i><b>); <br>
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int TIFFWriteBufferSetup(TIFF *</b><i>tif</i><b>,
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tdata_t</b> <i>buffer</i><b>, tsize_t</b>
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<i>size</i><b>);</b></p>
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<a name="DESCRIPTION"></a>
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<h2>DESCRIPTION</h2>
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<p style="margin-left:11%; margin-top: 1em">The following
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routines are provided for client-control of the I/O buffers
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used by the library. Applications need never use these
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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 style="margin-left:11%; margin-top: 1em"><i>TIFFReadBufferSetup</i>
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sets up the data buffer used to read raw (encoded) data from
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a file. If the specified pointer is <small>NULL</small>
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(zero), then a buffer of the appropriate size is allocated.
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Otherwise the caller must guarantee that the buffer is large
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enough to hold any individual strip of raw data.
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<i>TIFFReadBufferSetup</i> returns a non-zero value if the
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setup was successful and zero otherwise.</p>
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<p style="margin-left:11%; margin-top: 1em"><i>TIFFWriteBufferSetup</i>
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sets up the data buffer used to write raw (encoded) data to
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a file. If the specified <i>size</i> is −1 then the
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buffer size is selected to hold a complete tile or strip, or
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at least 8 kilobytes, whichever is greater. If the specified
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<i>buffer</i> is <small>NULL</small> (zero), then a buffer
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of the appropriate size is dynamically allocated.
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<i>TIFFWriteBufferSetup</i> returns a non-zero value if the
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setup was successful and zero otherwise.</p>
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<a name="DIAGNOSTICS"></a>
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<h2>DIAGNOSTICS</h2>
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<p style="margin-left:11%; margin-top: 1em"><b>%s: No space
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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 style="margin-left:11%; margin-top: 1em"><b>%s: No space
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for output buffer</b>. <i>TIFFWriteBufferSetup</i> was
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unable to dynamically allocate space for a data buffer.</p>
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2005-03-06 06:11:43 -05:00
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<a name="SEE ALSO"></a>
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<h2>SEE ALSO</h2>
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<p style="margin-left:11%; margin-top: 1em"><b>libtiff</b>(3TIFF)</p>
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<p style="margin-left:11%; margin-top: 1em">Libtiff library
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home page: <b>http://www.remotesensing.org/libtiff/</b></p>
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