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/usr/share/doc/libtiff-devel/html/man

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CMakeLists.txt	3435	0644	edit dl rm
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Edit: /usr/share/doc/libtiff-devel/html/man/TIFFReadTile.3tiff.html (3646B)

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"http://www.w3.org/TR/html4/loose.dtd">
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</style>
<title>TIFFReadTile</title>

</head>
<body>

<h1 align="center">TIFFReadTile</h1>

<a href="#NAME">NAME</a> 
<a href="#SYNOPSIS">SYNOPSIS</a> 
<a href="#DESCRIPTION">DESCRIPTION</a> 
<a href="#NOTES">NOTES</a> 
<a href="#RETURN VALUES">RETURN VALUES</a> 
<a href="#DIAGNOSTICS">DIAGNOSTICS</a> 
<a href="#SEE ALSO">SEE ALSO</a>

<hr>

TIFFReadTile
&minus; read and decode a tile of data from an open
TIFF file

<h2>SYNOPSIS
<a name="SYNOPSIS"></a>
</h2>

#include
&lt;tiffio.h&gt;

tsize_t
TIFFReadTile(TIFF *tif, tdata_t
buf, uint32_t x, uint32_t
y, uint32_t z, tsample_t
sample)

<h2>DESCRIPTION
<a name="DESCRIPTION"></a>
</h2>

Return the data
for the tile containing the specified coordinates.
The data placed in buf 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 TIFFTileSize to find out the
size (in bytes) of a tile buffer. The x and y
parameters are always used by TIFFReadTile. The
z parameter is used if the image is deeper than 1
slice (ImageDepth&gt;1). The sample parameter
is used only if data are organized in separate planes
(PlanarConfiguration=2).

<h2>NOTES
<a name="NOTES"></a>
</h2>

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
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,

<h2>RETURN VALUES
<a name="RETURN VALUES"></a>
</h2>

TIFFReadTile
returns &minus;1 if it detects an error; otherwise the
number of bytes in the decoded tile is returned.

<h2>DIAGNOSTICS
<a name="DIAGNOSTICS"></a>
</h2>

All error
messages are directed to the TIFFError(3TIFF)
routine.

TIFFCheckTile(3TIFF),
TIFFComputeTile(3TIFF), TIFFOpen(3TIFF),
TIFFReadEncodedTile(3TIFF),
TIFFReadRawTile(3TIFF), libtiff(3TIFF)

Libtiff library
home page: http://www.simplesystems.org/libtiff/
<hr>
</body>
</html>

TIFFReadTile

NAME
SYNOPSIS
DESCRIPTION
NOTES
RETURN VALUES
DIAGNOSTICS
SEE ALSO

NAME

TIFFReadTile − read and decode a tile of data from an open TIFF file

SYNOPSIS

#include <tiffio.h>

tsize_t TIFFReadTile(TIFF *tif, tdata_t buf, uint32_t x, uint32_t y, uint32_t z, tsample_t sample)

DESCRIPTION

Return the data for the tile containing the specified coordinates. The data placed in buf 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 TIFFTileSize to find out the size (in bytes) of a tile buffer. The x and y parameters are always used by TIFFReadTile. The z parameter is used if the image is deeper than 1 slice (ImageDepth>1). The sample parameter is used only if data are organized in separate planes (PlanarConfiguration=2).

NOTES

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 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,

RETURN VALUES

TIFFReadTile returns −1 if it detects an error; otherwise the number of bytes in the decoded tile is returned.

DIAGNOSTICS

All error messages are directed to the TIFFError(3TIFF) routine.