RLE_RAW_ALLOC(3) 3 (2/2/87) RLE_RAW_ALLOC(3)
NAME
rle_raw_alloc - Allocate memory for rle_getraw or
rle_putraw.
rle_raw_free - free memory allocated by rle_raw_alloc.
SYNOPSIS
#include <rle.h>
#include <rle_raw.h>
rle_raw_alloc( the_hdr, scanp, nrawp )
rle_hdr * the_hdr;
rle_op *** scanp;
int ** nrawp;
rle_raw_free( the_hdr, scanp, nrawp )
rle_hdr * the_hdr;
rle_op ** scanp;
int * nrawp;
DESCRIPTION
The function rle_raw_alloc is provided to make it easier to
allocate storage for use by the RLE "raw" functions. It
examines the the_hdr structure provided and return (via its
other arguments) newly allocated space suitable for reading
from or writing to an RLE file described by the the_hdr
structure. Rle_raw_alloc allocates (the_hdr->xmax -
the_hdr->xmin + 1) elements per channel, which is more than
should ever be needed for a valid RLE file.
Rle_raw_free should be used to free memory allocated by
rle_raw_alloc(3). The arguments are pointers to the
allocated storage. This is distinct from rle_freeraw(3),
which only frees pixel arrays referenced by individual
rle_op structures, while rle_raw_free frees the storage
consumed by the arrays of pointers and rle_op structures.
In fact, rle_freeraw should be called before calling
rle_raw_free.
SEE ALSO
rle_hdr(3), rle_op(3), rle_putraw(3), rle_getraw(3),
rle_freeraw(3), librle(3), RLE(5).
AUTHOR
Spencer W. Thomas
University of Utah
BUGS
The naming confusion between rle_freeraw and rle_raw_free is
unfortunate.
Page 1 (printed 12/1/98)
