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TIFFReadEncodedStrip - read and decode a strip
of data from an open TIFF
file
#include <tiffio.h>
tsize_t TIFFReadEncodedStrip(TIFF* tif, tstrip_t strip, tdata_t buf, tsize_t
size)
Read the specified strip of data and place up to size
bytes of decompressed information in the (user supplied) data buffer.
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(3)
.
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,
The
actual number of bytes of data that were placed in buf is returned; TIFFReadEncodedStrip
returns -1 if an error was encountered.
All error messages are
directed to the TIFFError(3)
routine.
libtiff(3)
, TIFFOpen(3)
, TIFFReadRawStrip(3)
,
TIFFReadScanline(3)
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