TIFFReadEncodedStrip(3tiff)

TIFFReadEncodedStrip(3TIFFMISC. REFERENCE MANUAL PAGETIFFReadEncodedStrip(3TIFF)

NAME

     TIFFReadEncodedStrip - read and decode a strip of data  from
     an open TIFF file

SYNOPSIS

     #include <tiffio.h>

     tsize_t  TIFFReadEncodedStrip(TIFF  *tif,  tstrip_t   strip,
     tdata_t buf

DESCRIPTION

     Read the specified strip of data and place up to size  bytes
     of  decompressed  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  differ-
     ences 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

     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) rou-
     tine.

SEE ALSO

     libtiff(3TIFF),  TIFFOpen(3TIFF),   TIFFReadRawStrip(3TIFF),
     TIFFReadScanline(3TIFF)

libtiff           Last change: October 15, 1995                 1