.\" $Id: TIFFReadRawTile.3tiff,v 1.2 2005-11-02 11:07:18 dron Exp $

.\"

.\" 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 

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.\" OF THIS SOFTWARE.

.\"

.if n .po 0

.TH TIFFReadRawTile 3TIFF "October 15, 1995" "libtiff"

.SH NAME

TIFFReadRawTile \- return an undecoded tile of data from an open

.SM TIFF

file

.SH SYNOPSIS

.B "#include <tiffio.h>"</tiffio.h>

.sp

.BI "tsize_t TIFFReadRawTile(TIFF *" tif ", ttile_t " tile ", tdata_t " buf ", tsize_t " size ")"

.SH DESCRIPTION

Read the contents of the specified tile into the (user supplied) data buffer.

Note that the value of

.I tile

is a ``raw tile number.'' That is, the caller must take into account whether

or not the data is organized in separate planes (\c

.IR PlanarConfiguration =2).

.I 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 typically

be at least as large as the value returned by

.IR TIFFTileSize .

.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

.BR TIFFError (3TIFF)

routine.

.SH "SEE ALSO"

.BR TIFFOpen (3TIFF),

.BR TIFFReadEncodedTile (3TIFF),

.BR TIFFReadTile (3TIFF),

.BR TIFFTileSize (3TIFF),

.BR libtiff (3TIFF)

.PP

Libtiff library home page:

.BR http://www.remotesensing.org/libtiff/