/* * 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)(unsigned int nblank, rle_hdr * the_hdr); void(*setColor)(int c, rle_hdr * the_hdr); void(*skipPixels)(unsigned int nskip, int last, int wasrun, rle_hdr * the_hdr); void(*newScanLine)(int flag, rle_hdr * the_hdr); void(*putdat)(rle_pixel * buf, unsigned int n, rle_hdr * the_hdr); /* put a set of differing pixels */ void(*putrn)(int color, unsigned 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