2016-09-25 16:05:44 -04:00
|
|
|
.\" $Id: TIFFReadEncodedTile.3tiff,v 1.4 2016-09-25 20:05:50 bfriesen Exp $
|
2004-11-11 09:39:16 -05:00
|
|
|
.\"
|
|
|
|
|
.\" Copyright (c) 1988-1997 Sam Leffler
|
|
|
|
|
.\" Copyright (c) 1991-1997 Silicon Graphics, Inc.
|
|
|
|
|
.\"
|
|
|
|
|
.\" Permission to use, copy, modify, distribute, and sell this software and
|
|
|
|
|
.\" its documentation for any purpose is hereby granted without fee, provided
|
|
|
|
|
.\" that (i) the above copyright notices and this permission notice appear in
|
|
|
|
|
.\" all copies of the software and related documentation, and (ii) the names of
|
|
|
|
|
.\" Sam Leffler and Silicon Graphics may not be used in any advertising or
|
|
|
|
|
.\" publicity relating to the software without the specific, prior written
|
|
|
|
|
.\" permission of Sam Leffler and Silicon Graphics.
|
|
|
|
|
.\"
|
|
|
|
|
.\" THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND,
|
|
|
|
|
.\" EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY
|
|
|
|
|
.\" WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
|
|
|
|
|
.\"
|
|
|
|
|
.\" IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR
|
|
|
|
|
.\" ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND,
|
|
|
|
|
.\" OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
|
|
|
|
|
.\" WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF
|
|
|
|
|
.\" LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
|
|
|
|
|
.\" OF THIS SOFTWARE.
|
|
|
|
|
.\"
|
|
|
|
|
.if n .po 0
|
2006-10-13 03:22:01 -04:00
|
|
|
.TH TIFFReadEncodedTile 3TIFF "October 13, 2006" "libtiff"
|
2004-11-11 09:39:16 -05:00
|
|
|
.SH NAME
|
|
|
|
|
TIFFReadEncodedTile \- read and decode a tile of data from an open
|
|
|
|
|
.SM TIFF
|
|
|
|
|
file
|
|
|
|
|
.SH SYNOPSIS
|
|
|
|
|
.B "#include <tiffio.h>"
|
|
|
|
|
.sp
|
2006-10-13 03:22:01 -04:00
|
|
|
.BI "int TIFFReadEncodedTile(TIFF *" tif ", ttile_t " tile ", tdata_t " buf ", tsize_t " size ")"
|
2004-11-11 09:39:16 -05:00
|
|
|
.SH DESCRIPTION
|
|
|
|
|
Read the specified tile of data and place up to
|
|
|
|
|
.I size
|
|
|
|
|
bytes of decompressed information in the (user supplied) data buffer.
|
|
|
|
|
.SH NOTES
|
|
|
|
|
The value of
|
|
|
|
|
.I tile
|
|
|
|
|
is a ``raw tile number.''
|
|
|
|
|
That is, the caller must take into account whether or not the data are
|
|
|
|
|
organized in separate planes (\c
|
|
|
|
|
.IR PlanarConfiguration =2).
|
|
|
|
|
.IR TIFFComputeTile
|
|
|
|
|
automatically does this when converting an (x,y,z,sample) coordinate quadruple
|
|
|
|
|
to a tile number. To read a full tile of data the data buffer should be at
|
|
|
|
|
least as large as the value returned by
|
|
|
|
|
.IR TIFFTileSize .
|
|
|
|
|
.PP
|
|
|
|
|
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
|
|
|
|
|
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,
|
|
|
|
|
.SH "RETURN VALUES"
|
|
|
|
|
The actual number of bytes of data that were placed in
|
|
|
|
|
.I buf
|
|
|
|
|
is returned;
|
|
|
|
|
.IR TIFFReadEncodedTile
|
|
|
|
|
returns \-1 if an error was encountered.
|
|
|
|
|
.SH DIAGNOSTICS
|
|
|
|
|
All error messages are directed to the
|
2005-11-02 06:07:18 -05:00
|
|
|
.BR TIFFError (3TIFF)
|
2004-11-11 09:39:16 -05:00
|
|
|
routine.
|
|
|
|
|
.SH "SEE ALSO"
|
2005-11-02 06:07:18 -05:00
|
|
|
.BR TIFFOpen (3TIFF),
|
|
|
|
|
.BR TIFFReadRawTile (3TIFF),
|
|
|
|
|
.BR TIFFReadTile (3TIFF),
|
|
|
|
|
.BR libtiff (3TIFF)
|
|
|
|
|
.PP
|
|
|
|
|
Libtiff library home page:
|
2016-09-25 16:05:44 -04:00
|
|
|
.BR http://www.simplesystems.org/libtiff/
|
