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/*
* This software is copyrighted as noted below. It may be freely copied,
* modified, and redistributed, provided that the copyright notice is
* preserved on all copies.
*
* There is no warranty or other guarantee of fitness for this software,
* it is provided solely "as is". Bug reports or fixes may be sent
* to the author, who may or may not act on them as he desires.
*
* You may not include this software in a program or other software product
* without supplying the source, or without informing the end-user that the
* source is available for no extra charge.
*
* If you modify this software, you should include a notice giving the
* name of the person performing the modification, the date of modification,
* and the reason for such modification.
*/
/*
* rle_raw.h - Definitions for rle_getraw/rle_putraw.
*
* Author: Spencer W. Thomas
* Computer Science Dept.
* University of Utah
* Date: Mon Jul 7 1986
* Copyright (c) 1986, Spencer W. Thomas
*/
#ifndef RLE_RAW_H
#define RLE_RAW_H
#include <rle_code.h>
/*****************************************************************
* TAG( rle_op )
*
* Struct representing one rle opcode.
*/
#ifndef c_plusplus
typedef struct rle_op rle_op;
#endif
struct rle_op {
int opcode; /* one of RByteDataOp or RRunDataOp */
int xloc; /* X location this op starts at */
int length; /* length of run or data */
union {
rle_pixel * pixels; /* for ByteData */
int run_val; /* for RunData */
} u;
};
#ifdef USE_PROTOTYPES
/*****************************************************************
* TAG( rle_raw_alloc )
*
* Allocate buffer space for use by rle_getraw and rle_putraw.
*/
extern int
rle_raw_alloc( rle_hdr *the_hdr, rle_op ***scanp, int **nrawp );
/*****************************************************************
* TAG( rle_raw_free )
*
* Free buffer space allocated by rle_raw_alloc.
*/
extern void rle_raw_free( rle_hdr *the_hdr, rle_op **scanp, int *nrawp );
/*****************************************************************
* TAG( rle_getraw )
*
* Get a raw scanline from the input file.
*/
extern unsigned int
rle_getraw( rle_hdr *the_hdr, rle_op *scanraw[], int nraw[] );
/*****************************************************************
* TAG( rle_freeraw )
*
* Free all the pixel arrays in the raw scan struct.
*/
extern void
rle_freeraw( rle_hdr * the_hdr, rle_op *scanraw[], int nraw[] );
/*****************************************************************
* TAG( rle_putraw )
*
* Put raw scanline data to the output file.
*/
extern void
rle_putraw( rle_op **scanraw, int *nraw, rle_hdr *the_hdr );
/*****************************************************************
* TAG( rle_rawtorow )
*
* Convert raw data to "row" type scanline data.
*/
extern void
rle_rawtorow( rle_hdr *the_hdr, rle_op **scanraw, int *nraw,
rle_pixel **outrows );
#else
/* Return value decls only. See above for detailed declarations. */
/* From rle_getraw.c. */
extern unsigned int rle_getraw();
extern void rle_freeraw();
/* From rle_putraw.c. */
extern void rle_putraw();
/* From rle_raw_alc.c. */
extern int rle_raw_alloc();
extern void rle_raw_free();
/* From rle_rawrow.c. */
extern void rle_rawtorow();
#endif
#endif /* RLE_RAW_H */
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