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).
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AUTHOR
Spencer W. Thomas
University of Utah
BUGS
The naming confusion between rle_freeraw and
rle_raw_free is unfortunate.
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