| author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
| Tue, 06 Jul 2010 15:10:48 +0300 | |
| changeset 30 | 5dc02b23752f |
| parent 0 | 1918ee327afb |
| permissions | -rw-r--r-- |
| 0 | 1 |
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
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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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<a name="NAME"></a> |
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<h2>NAME</h2> |
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<p>TIFFReadBufferSetup, TIFFWriteBufferSetup − I/O |
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buffering control routines</p> |
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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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<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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<a name="DIAGNOSTICS"></a> |
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<h2>DIAGNOSTICS</h2> |
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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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<a name="SEE ALSO"></a> |
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<h2>SEE ALSO</h2> |
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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><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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<hr> |
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