src/tiff/html/man/TIFFReadRawTile.3tiff.html

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   7 <title>TIFFReadRawTile</title>
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  10
  11 <h1 align=center>TIFFReadRawTile</h1>
  12 <a href="#NAME">NAME</a><br>
  13 <a href="#SYNOPSIS">SYNOPSIS</a><br>
  14 <a href="#DESCRIPTION">DESCRIPTION</a><br>
  15 <a href="#RETURN VALUES">RETURN VALUES</a><br>
  16 <a href="#DIAGNOSTICS">DIAGNOSTICS</a><br>
  17 <a href="#SEE ALSO">SEE ALSO</a><br>
  18
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  20 <a name="NAME"></a>
  21 <h2>NAME</h2>
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  28 <p>TIFFReadRawTile &minus; return an undecoded tile of data
  29 from an open <small>TIFF</small> file</p>
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  32 <a name="SYNOPSIS"></a>
  33 <h2>SYNOPSIS</h2>
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  40 <p><b>#include &lt;tiffio.h&gt;</b></p>
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  42 <p><b>tsize_t TIFFReadRawTile(TIFF *</b><i>tif</i><b>,
  43 ttile_t</b> <i>tile</i><b>, tdata_t</b> <i>buf</i><b>,
  44 tsize_t</b> <i>size</i><b>)</b></p>
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  47 <a name="DESCRIPTION"></a>
  48 <h2>DESCRIPTION</h2>
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  55 <p>Read the contents of the specified tile into the (user
  56 supplied) data buffer. Note that the value of <i>tile</i> is
  57 a &lsquo;&lsquo;raw tile number.&rsquo;&rsquo; That is, the
  58 caller must take into account whether or not the data is
  59 organized in separate planes (<i>PlanarConfiguration</i>=2).
  60 <i>TIFFComputeTile</i> automatically does this when
  61 converting an (x,y,z,sample) coordinate quadruple to a tile
  62 number. To read a full tile of data the data buffer should
  63 typically be at least as large as the value returned by
  64 <i>TIFFTileSize</i>.</p>
  65 </td>
  66 </table>
  67 <a name="RETURN VALUES"></a>
  68 <h2>RETURN VALUES</h2>
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  75 <p>The actual number of bytes of data that were placed in
  76 <i>buf</i> is returned; <i>TIFFReadEncodedTile</i> returns
  77 &minus;1 if an error was encountered.</p>
  78 </td>
  79 </table>
  80 <a name="DIAGNOSTICS"></a>
  81 <h2>DIAGNOSTICS</h2>
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  88 <p>All error messages are directed to the
  89 <b>TIFFError</b>(3TIFF) routine.</p>
  90 </td>
  91 </table>
  92 <a name="SEE ALSO"></a>
  93 <h2>SEE ALSO</h2>
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 100 <p><b>TIFFOpen</b>(3TIFF),
 101 <b>TIFFReadEncodedTile</b>(3TIFF),
 102 <b>TIFFReadTile</b>(3TIFF), <b>TIFFTileSize</b>(3TIFF),
 103 <b>libtiff</b>(3TIFF)</p>
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 105 <p>Libtiff library home page:
 106 <b>http://www.remotesensing.org/libtiff/</b></p>
 107 </td>
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