134 lines
4.2 KiB
HTML
134 lines
4.2 KiB
HTML
<!-- Creator : groff version 1.18.1 -->
|
|
<!-- CreationDate: Sat Feb 24 18:37:17 2007 -->
|
|
<html>
|
|
<head>
|
|
<meta name="generator" content="groff -Thtml, see www.gnu.org">
|
|
<meta name="Content-Style" content="text/css">
|
|
<title>TIFFReadTile</title>
|
|
</head>
|
|
<body>
|
|
|
|
<h1 align=center>TIFFReadTile</h1>
|
|
<a href="#NAME">NAME</a><br>
|
|
<a href="#SYNOPSIS">SYNOPSIS</a><br>
|
|
<a href="#DESCRIPTION">DESCRIPTION</a><br>
|
|
<a href="#NOTES">NOTES</a><br>
|
|
<a href="#RETURN VALUES">RETURN VALUES</a><br>
|
|
<a href="#DIAGNOSTICS">DIAGNOSTICS</a><br>
|
|
<a href="#SEE ALSO">SEE ALSO</a><br>
|
|
|
|
<hr>
|
|
<a name="NAME"></a>
|
|
<h2>NAME</h2>
|
|
<!-- INDENTATION -->
|
|
<table width="100%" border=0 rules="none" frame="void"
|
|
cols="2" cellspacing="0" cellpadding="0">
|
|
<tr valign="top" align="left">
|
|
<td width="8%"></td>
|
|
<td width="91%">
|
|
<p>TIFFReadTile − read and decode a tile of data from
|
|
an open <small>TIFF</small> file</p>
|
|
</td>
|
|
</table>
|
|
<a name="SYNOPSIS"></a>
|
|
<h2>SYNOPSIS</h2>
|
|
<!-- INDENTATION -->
|
|
<table width="100%" border=0 rules="none" frame="void"
|
|
cols="2" cellspacing="0" cellpadding="0">
|
|
<tr valign="top" align="left">
|
|
<td width="8%"></td>
|
|
<td width="91%">
|
|
<p><b>#include <tiffio.h></b></p>
|
|
<!-- INDENTATION -->
|
|
<p><b>tsize_t TIFFReadTile(TIFF *</b><i>tif</i><b>,
|
|
tdata_t</b> <i>buf</i><b>, uint32</b> <i>x</i><b>,
|
|
uint32</b> <i>y</i><b>, uint32</b> <i>z</i><b>,
|
|
tsample_t</b> <i>sample</i><b>)</b></p>
|
|
</td>
|
|
</table>
|
|
<a name="DESCRIPTION"></a>
|
|
<h2>DESCRIPTION</h2>
|
|
<!-- INDENTATION -->
|
|
<table width="100%" border=0 rules="none" frame="void"
|
|
cols="2" cellspacing="0" cellpadding="0">
|
|
<tr valign="top" align="left">
|
|
<td width="8%"></td>
|
|
<td width="91%">
|
|
<p>Return the data for the tile <i>containing</i> the
|
|
specified coordinates. The data placed in <i>buf</i> are
|
|
returned decompressed and, typically, in the native byte-
|
|
and bit-ordering, but are otherwise packed (see further
|
|
below). The buffer must be large enough to hold an entire
|
|
tile of data. Applications should call the routine
|
|
<i>TIFFTileSize</i> to find out the size (in bytes) of a
|
|
tile buffer. The <i>x</i> and <i>y</i> parameters are always
|
|
used by <i>TIFFReadTile</i>. The <i>z</i> parameter is used
|
|
if the image is deeper than 1 slice
|
|
(<i>ImageDepth</i>>1). The <i>sample</i> parameter is
|
|
used only if data are organized in separate planes
|
|
(<i>PlanarConfiguration</i>=2).</p>
|
|
</td>
|
|
</table>
|
|
<a name="NOTES"></a>
|
|
<h2>NOTES</h2>
|
|
<!-- INDENTATION -->
|
|
<table width="100%" border=0 rules="none" frame="void"
|
|
cols="2" cellspacing="0" cellpadding="0">
|
|
<tr valign="top" align="left">
|
|
<td width="8%"></td>
|
|
<td width="91%">
|
|
<p>The library attempts to hide bit- and byte-ordering
|
|
differences between the image and the native machine by
|
|
converting data to the native machine order. Bit reversal is
|
|
done if the <i>FillOrder</i> tag is opposite to the native
|
|
machine bit order. 16- and 32-bit samples are automatically
|
|
byte-swapped if the file was written with a byte order
|
|
opposite to the native machine byte order,</p>
|
|
</td>
|
|
</table>
|
|
<a name="RETURN VALUES"></a>
|
|
<h2>RETURN VALUES</h2>
|
|
<!-- INDENTATION -->
|
|
<table width="100%" border=0 rules="none" frame="void"
|
|
cols="2" cellspacing="0" cellpadding="0">
|
|
<tr valign="top" align="left">
|
|
<td width="8%"></td>
|
|
<td width="91%">
|
|
<p><i>TIFFReadTile</i> returns −1 if it detects an
|
|
error; otherwise the number of bytes in the decoded tile is
|
|
returned.</p>
|
|
</td>
|
|
</table>
|
|
<a name="DIAGNOSTICS"></a>
|
|
<h2>DIAGNOSTICS</h2>
|
|
<!-- INDENTATION -->
|
|
<table width="100%" border=0 rules="none" frame="void"
|
|
cols="2" cellspacing="0" cellpadding="0">
|
|
<tr valign="top" align="left">
|
|
<td width="8%"></td>
|
|
<td width="91%">
|
|
<p>All error messages are directed to the
|
|
<b>TIFFError</b>(3TIFF) routine.</p>
|
|
</td>
|
|
</table>
|
|
<a name="SEE ALSO"></a>
|
|
<h2>SEE ALSO</h2>
|
|
<!-- INDENTATION -->
|
|
<table width="100%" border=0 rules="none" frame="void"
|
|
cols="2" cellspacing="0" cellpadding="0">
|
|
<tr valign="top" align="left">
|
|
<td width="8%"></td>
|
|
<td width="91%">
|
|
<p><b>TIFFCheckTile</b>(3TIFF),
|
|
<b>TIFFComputeTile</b>(3TIFF), <b>TIFFOpen</b>(3TIFF),
|
|
<b>TIFFReadEncodedTile</b>(3TIFF),
|
|
<b>TIFFReadRawTile</b>(3TIFF), <b>libtiff</b>(3TIFF)</p>
|
|
<!-- INDENTATION -->
|
|
<p>Libtiff library home page:
|
|
<b>http://www.remotesensing.org/libtiff/</b></p>
|
|
</td>
|
|
</table>
|
|
<hr>
|
|
</body>
|
|
</html>
|