80 lines
2.8 KiB
C
80 lines
2.8 KiB
C
/* $NetBSD: wwredrawwin.c,v 1.6 2002/06/14 01:07:01 wiz Exp $ */
|
|
|
|
/*
|
|
* Copyright (c) 1983, 1993
|
|
* The Regents of the University of California. All rights reserved.
|
|
*
|
|
* This code is derived from software contributed to Berkeley by
|
|
* Edward Wang at The University of California, Berkeley.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 3. All advertising materials mentioning features or use of this software
|
|
* must display the following acknowledgement:
|
|
* This product includes software developed by the University of
|
|
* California, Berkeley and its contributors.
|
|
* 4. Neither the name of the University nor the names of its contributors
|
|
* may be used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*/
|
|
|
|
#include <sys/cdefs.h>
|
|
#ifndef lint
|
|
#if 0
|
|
static char sccsid[] = "@(#)wwredrawwin.c 8.1 (Berkeley) 6/6/93";
|
|
#else
|
|
__RCSID("$NetBSD: wwredrawwin.c,v 1.6 2002/06/14 01:07:01 wiz Exp $");
|
|
#endif
|
|
#endif /* not lint */
|
|
|
|
#include "ww.h"
|
|
|
|
void
|
|
wwredrawwin1(struct ww *w, int row1, int row2, int offset)
|
|
{
|
|
int row;
|
|
int col;
|
|
unsigned char *smap;
|
|
union ww_char *buf;
|
|
char *win;
|
|
union ww_char *ns;
|
|
int x;
|
|
int nchanged;
|
|
|
|
for (row = row1; row < row2; row++) {
|
|
col = w->ww_i.l;
|
|
ns = wwns[row];
|
|
smap = &wwsmap[row][col];
|
|
buf = w->ww_buf[row + offset];
|
|
win = w->ww_win[row];
|
|
nchanged = 0;
|
|
for (; col < w->ww_i.r; col++)
|
|
if (*smap++ == w->ww_index &&
|
|
ns[col].c_w !=
|
|
(x = buf[col].c_w ^ win[col] << WWC_MSHIFT)) {
|
|
nchanged++;
|
|
ns[col].c_w = x;
|
|
}
|
|
if (nchanged > 0)
|
|
wwtouched[row] |= WWU_TOUCHED;
|
|
}
|
|
}
|