/*

 * 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_put.h - Definitions and a few global variables for rle_putrow/putraw.

 * 

 * Author:	Spencer W. Thomas

 * 		Computer Science Dept.

 * 		University of Utah

 * Date:	Mon Aug  9 1982

 * Copyright (c) 1982 Spencer W. Thomas

 * 

 * $Id: rle_put.h,v 3.0.1.2 1992/02/27 21:14:35 spencer Exp $

 */

#include "rle.h"

#include "rle_config.h"

/* ****************************************************************

 * Dispatch table for different output types.

 */

#ifdef __cplusplus        /* Cfront 2.0  or g++ */

#ifndef c_plusplus

#define c_plusplus        

#endif

extern "C" {

#endif

#ifdef c_plusplus

#define ARB_ARGS ...

#else

#define ARB_ARGS

#endif

typedef int rle_fn( ARB_ARGS );

struct rle_dispatch_tab {

    CONST_DECL char   *magic;   /* magic type flags */

    void (*setup)(rle_hdr * the_hdr);          /* startup function */

    void (*skipBlankLines)(int nblank, rle_hdr * the_hdr);

    void(*setColor)(int c, rle_hdr * the_hdr);

    void(*skipPixels)(int nskip, int last, int wasrun, rle_hdr * the_hdr);

    void(*newScanLine)(int flag, rle_hdr * the_hdr);

    void(*putdat)(rle_pixel * buf, int n, rle_hdr * the_hdr);

        /* put a set of differing pixels */

    void(*putrn)(int color, int n, int last, rle_hdr * the_hdr);

        /* put a run all the same */

    void (*blockHook)(rle_hdr * the_hdr);

        /* hook called at start of new output block */

    void(*putEof)(rle_hdr * the_hdr);     /* write EOF marker (if possible) */

};

extern struct rle_dispatch_tab rle_DTable[];

/* 

 * These definitions presume the existence of a variable called

 * "fileptr", declared "long * fileptr".  *fileptr should be

 * initialized to 0 before calling Setup().

 * A pointer "the_hdr" declared "rle_hdr * the_hdr" is also

 * presumed to exist.

 */

#define	    rle_magic		(rle_DTable[(int)the_hdr->dispatch].magic)

#define	    Setup()		(*rle_DTable[(int)the_hdr->dispatch].setup)(the_hdr)

#define	    SkipBlankLines(n)	(*rle_DTable[(int)the_hdr->dispatch].skipBlankLines)(n, the_hdr)

#define	    SetColor(c)		(*rle_DTable[(int)the_hdr->dispatch].setColor)(c, the_hdr)

#define	    SkipPixels(n, l, r)	(*rle_DTable[(int)the_hdr->dispatch].skipPixels)(n,l,r, the_hdr)

#define	    NewScanLine(flag)	(*rle_DTable[(int)the_hdr->dispatch].newScanLine)(flag, the_hdr)

#define	    putdata(buf, len)	(*rle_DTable[(int)the_hdr->dispatch].putdat)(buf, len, the_hdr)

#define	    putrun(val, len, f)	(*rle_DTable[(int)the_hdr->dispatch].putrn)(val,len,f, the_hdr)

#define	    BlockHook()		(*rle_DTable[(int)the_hdr->dispatch].blockHook)(the_hdr)

#define	    PutEof()		(*rle_DTable[(int)the_hdr->dispatch].putEof)(the_hdr)

void

DefaultBlockHook(rle_hdr * the_hdr);

/* 

 * States for run detection

 */

#define	DATA	0

#define	RUN1	1

#define RUN2	2

#define	RUN3	3

#define RUN4	4

#define RUN5	5

#define RUN6	6

#define RUN7	7

#define	INRUN	-1

#ifdef __cplusplus

}

#endif