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15<title>TIFFReadRawTile</title>
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19
20<h1 align=center>TIFFReadRawTile</h1>
21
22<a href="#NAME">NAME</a><br>
23<a href="#SYNOPSIS">SYNOPSIS</a><br>
24<a href="#DESCRIPTION">DESCRIPTION</a><br>
25<a href="#RETURN VALUES">RETURN VALUES</a><br>
26<a href="#DIAGNOSTICS">DIAGNOSTICS</a><br>
27<a href="#SEE ALSO">SEE ALSO</a><br>
28
29<hr>
30
31
32<a name="NAME"></a>
33<h2>NAME</h2>
34
35
36
37<p style="margin-left:11%; margin-top: 1em">TIFFReadRawTile
38&minus; return an undecoded tile of data from an open
39<small>TIFF</small> file</p>
40
41<a name="SYNOPSIS"></a>
42<h2>SYNOPSIS</h2>
43
44
45<p style="margin-left:11%; margin-top: 1em"><b>#include
46&lt;tiffio.h&gt;</b></p>
47
48<p style="margin-left:11%; margin-top: 1em"><b>tsize_t
49TIFFReadRawTile(TIFF *</b><i>tif</i><b>, ttile_t</b>
50<i>tile</i><b>, tdata_t</b> <i>buf</i><b>, tsize_t</b>
51<i>size</i><b>)</b></p>
52
53<a name="DESCRIPTION"></a>
54<h2>DESCRIPTION</h2>
55
56
57<p style="margin-left:11%; margin-top: 1em">Read the
58contents of the specified tile into the (user supplied) data
59buffer. Note that the value of <i>tile</i> is a
60&lsquo;&lsquo;raw tile number.&rsquo;&rsquo; That is, the
61caller must take into account whether or not the data is
62organized in separate planes (<i>PlanarConfiguration</i>=2).
63<i>TIFFComputeTile</i> automatically does this when
64converting an (x,y,z,sample) coordinate quadruple to a tile
65number. To read a full tile of data the data buffer should
66typically be at least as large as the value returned by
67<i>TIFFTileSize</i>.</p>
68
69<a name="RETURN VALUES"></a>
70<h2>RETURN VALUES</h2>
71
72
73<p style="margin-left:11%; margin-top: 1em">The actual
74number of bytes of data that were placed in <i>buf</i> is
75returned; <i>TIFFReadEncodedTile</i> returns &minus;1 if an
76error was encountered.</p>
77
78<a name="DIAGNOSTICS"></a>
79<h2>DIAGNOSTICS</h2>
80
81
82<p style="margin-left:11%; margin-top: 1em">All error
83messages are directed to the <b>TIFFError</b>(3TIFF)
84routine.</p>
85
86<a name="SEE ALSO"></a>
87<h2>SEE ALSO</h2>
88
89
90
91<p style="margin-left:11%; margin-top: 1em"><b>TIFFOpen</b>(3TIFF),
92<b>TIFFReadEncodedTile</b>(3TIFF),
93<b>TIFFReadTile</b>(3TIFF), <b>TIFFTileSize</b>(3TIFF),
94<b>libtiff</b>(3TIFF)</p>
95
96<p style="margin-left:11%; margin-top: 1em">Libtiff library
97home page: <b>http://www.remotesensing.org/libtiff/</b></p>
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