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authorJörg Frings-Fürst <debian@jff-webhosting.net>2015-11-06 07:14:47 +0100
committerJörg Frings-Fürst <debian@jff-webhosting.net>2015-11-06 07:14:47 +0100
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-<!-- Creator : groff version 1.18.1 -->
-<!-- CreationDate: Sat Feb 24 18:37:18 2007 -->
-<html>
-<head>
-<meta name="generator" content="groff -Thtml, see www.gnu.org">
-<meta name="Content-Style" content="text/css">
-<title>TIFFWriteScanline</title>
-</head>
-<body>
-
-<h1 align=center>TIFFWriteScanline</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="#BUGS">BUGS</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>TIFFWriteScanline &minus; write a scanline to 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 &lt;tiffio.h&gt;</b></p>
-<!-- INDENTATION -->
-<p><b>int TIFFWriteScanline(TIFF *</b><i>tif</i><b>,
-tdata_t</b> <i>buf</i><b>, uint32</b> <i>row</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>Write data to a file at the specified row. The
-<i>sample</i> parameter is used only if data are organized
-in separate planes (<i>PlanarConfiguration</i>=2). The data
-are assumed to be uncompressed and in the native bit- and
-byte-order of the host machine. The data written to the file
-is compressed according to the compression scheme of the
-current <small>TIFF</small> directory (see further below).
-If the current scanline is past the end of the current
-subfile, the <i>ImageLength</i> field is automatically
-increased to include the scanline (except for
-<i>PlanarConfiguration</i>=2, where the <i>ImageLength</i>
-cannot be changed once the first data are written). If the
-<i>ImageLength</i> is increased, the <i>StripOffsets</i> and
-<i>StripByteCounts</i> fields are similarly enlarged to
-reflect data written past the previous end of image.</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 writes encoded data using the native machine
-byte order. Correctly implemented <small>TIFF</small>
-readers are expected to do any necessary byte-swapping to
-correctly process image data with BitsPerSample greater than
-8. The library attempts to hide bit-ordering differences
-between the image and the native machine by converting data
-from the native machine order.</p>
-<!-- INDENTATION -->
-<p>In C++ the <i>sample</i> parameter defaults to 0.</p>
-<!-- INDENTATION -->
-<p>Once data are written to a file for the current
-directory, the values of certain tags may not be altered;
-see <i>TIFFSetField</i>(3TIFF) for more information.</p>
-<!-- INDENTATION -->
-<p>It is not possible to write scanlines to a file that uses
-a tiled organization. The routine <i>TIFFIsTiled</i> can be
-used to determine if the file is organized as tiles or
-strips.</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>TIFFWriteScanline</i> returns &minus;1 if it
-immediately detects an error and 1 for a successful
-write.</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
-<i>TIFFError</i>(3TIFF) routine.</p>
-<!-- INDENTATION -->
-<p><b>%s: File not open for writing .</b> The file was
-opened for reading, not writing.</p>
-<!-- INDENTATION -->
-<p><b>Can not write scanlines to a tiled image</b>. An
-attempt was made to write a scanline to a tiled image. The
-image is assumed to be organized in tiles because the
-<i>TileWidth</i> and <i>TileLength</i> tags have been set
-with <i>TIFFSetField</i>(3TIFF).</p>
-<!-- INDENTATION -->
-<p><b>Compression algorithm does not support random
-access</b>. Data was written in a non-sequential order to a
-file that uses a compression algorithm and that has
-<i>RowsPerStrip</i> greater than one. That is, data in the
-image is to be stored in a compressed form, and with
-multiple rows packed into a strip. In this case, the library
-does not support random access to the data. The data should
-either be written as entire strips, sequentially by rows, or
-the value of <i>RowsPerStrip</i> should be set to one.</p>
-<!-- INDENTATION -->
-<p><b>%s: Must set &quot;ImageWidth&quot; before writing
-data</b>. The image&rsquo;s width has not be set before the
-first write. See <b>TIFFSetField</b>(3TIFF) for information
-on how to do this.</p>
-<!-- INDENTATION -->
-<p><b>%s: Must set &quot;PlanarConfiguration&quot; before
-writing data</b>. The organization of data has not be
-defined before the first write. See
-<b>TIFFSetField</b>(3TIFF) for information on how to do
-this.</p>
-<!-- INDENTATION -->
-<p><b>Can not change &quot;ImageLength&quot; when using
-separate planes</b>. Separate image planes are being used
-(<i>PlanarConfiguration</i>=2), but the number of rows has
-not been specified before the first write. The library
-supports the dynamic growth of an image only when data are
-organized in a contiguous manner
-(<i>PlanarConfiguration</i>=1).</p>
-<!-- INDENTATION -->
-<p><b>%d: Sample out of range, max %d</b>. The <i>sample</i>
-parameter was greater than the value of the SamplesPerPixel
-tag.</p>
-<!-- INDENTATION -->
-<p><b>%s: No space for strip arrays .</b> There was not
-enough space for the arrays that hold strip offsets and byte
-counts.</p>
-</td>
-</table>
-<a name="BUGS"></a>
-<h2>BUGS</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>Writing subsampled YCbCR data does not work correctly
-because, for <i>PlanarConfiguration</i>=2 the size of a
-scanline is not calculated on a per-sample basis, and for
-<i>PlanarConfiguration</i>=1 the library does not pack the
-block-interleaved samples.</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>TIFFOpen</b>(3TIFF),
-<b>TIFFWriteEncodedStrip</b>(3TIFF),
-<b>TIFFWriteRawStrip</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>