TIFFReadEncodedStrip(3TIFF) TIFFReadEncodedStrip(3TIFF)
NAME
TIFFReadEncodedStrip - read and decode a strip of data from an open
TIFF file
SYNOPSIS
#include <tiffio.h>
tmsize_t TIFFReadEncodedStrip(TIFF *tif, uint32_t strip, void *buf, tm-
size_t size)
DESCRIPTION
Read the specified strip of data and place up to size bytes of decom-
pressed information in the (user supplied) data buffer.
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(3TIFF). If the -1 passed in size parameter, the whole
strip will be read. You should be sure you have enough space allocated
for the buffer.
The library attempts to hide bit- and byte-ordering differences between
the image and the native machine by converting data to the native ma-
chine 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
The actual number of bytes of data that were placed in buf is returned;
TIFFReadEncodedStrip returns -1 if an error was encountered.
DIAGNOSTICS
All error messages are directed to the TIFFError(3TIFF) routine.
SEE ALSO
TIFFOpen(3TIFF), TIFFReadRawStrip(3TIFF), TIFFReadScanline(3TIFF),
libtiff(3TIFF)
Libtiff library home page: http://www.simplesystems.org/libtiff/
libtiff October 15, 1995 TIFFReadEncodedStrip(3TIFF)
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