TIFFReadEncodedStrip
Section: Misc. Reference Manual Pages (3T)
Updated: December 16, 1991
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NAME
TIFFReadEncodedStrip - read and decode a strip of data from an open
TIFF
file
SYNOPSIS
#include <tiffio.h>
int TIFFReadEncodedStrip(TIFF* tif, u_int strip, u_char* buf, u_int size)
DESCRIPTION
Read the specified strip of data and place
size
bytes of decompressed information in the (user supplied) data buffer.
The actual number of bytes of data that were placed in
buf
is returned;
TIFFReadEncodedStrip()
returns -1 if an error was encountered.
NOTES
The value of
strip
is a ``raw strip number.''
That is, the caller must take into account whether or not the
data are organized in separate planes (PlanarConfiguration=2).
To read a full strip of data the data buffer should typically be
at least as large as the number returned by
TIFFStripSize().
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 always done if the
FillOrder
tag is opposite to the native machine bit order.
Byte swapping of 16- and 32-bit samples is automatically
done when
Compression=1
(``no compression''), but otherwise is left to the
decompression algorithms (which should generate decompressed
data in the native byte ordering of the machine).
DIAGNOSTICS
All error messages are directed to the
TIFFError(3T)
routine.
SEE ALSO
intro(3T),
TIFFOpen(3T),
TIFFReadRawStrip(3T),
TIFFReadScanline(3T)
Index
- NAME
-
- SYNOPSIS
-
- DESCRIPTION
-
- NOTES
-
- DIAGNOSTICS
-
- SEE ALSO
-
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