/**
 ** generic/pattern.c ---- generic (=slow) patterned scan line fill routine
 **
 ** Copyright (c) 1995 Csaba Biegl, 820 Stirrup Dr, Nashville, TN 37221
 ** [e-mail: csaba@vuse.vanderbilt.edu].
 **
 ** This file is part of the GRX graphics library.
 **
 ** The GRX graphics library is free software; you can redistribute it
 ** and/or modify it under some conditions; see the "copying.grx" file
 ** for details.
 **
 ** This library is distributed in the hope that it will be useful,
 ** but WITHOUT ANY WARRANTY; without even the implied warranty of
 ** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
 **
 **/

void drawpattern(int x,int y,int w,char patt,GrColor fg,GrColor bg)
{
	GR_int8u mask;
	GRX_ENTER();
	mask = 0x80;
	w += x;
	do {
	    drawpixel(x,y,(patt & mask) ? fg : bg);
	    if((mask >>= 1) == 0) mask = 0x80;
	} while(++x != w);
	GRX_LEAVE();
}