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/*-
* Copyright (c) 1995-1998 Søren Schmidt
* All rights reserved.
*
* 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,
* without modification, immediately at the beginning of the file.
* 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. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
*
* $FreeBSD$
*/
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/module.h>
#include <sys/consio.h>
#include <sys/fbio.h>
#include <machine/pc/display.h>
#include <dev/fb/fbreg.h>
#include <dev/fb/splashreg.h>
#include <dev/syscons/syscons.h>
#define NUM_STARS 50
static int blanked;
/*
* Alternate saver that got its inspiration from a well known utility
* package for an inferior^H^H^H^H^H^Hfamous OS.
*/
static int
star_saver(video_adapter_t *adp, int blank)
{
sc_softc_t *sc;
scr_stat *scp;
int cell, i;
static u_char pattern[] = {"...........++++*** "};
static char color16[] = {FG_DARKGREY, FG_LIGHTGREY,
FG_WHITE, FG_LIGHTCYAN};
static char color8[] = {FG_BLUE, FG_BROWN,
FG_LIGHTGREY, FG_CYAN};
static char *colors;
static u_short stars[NUM_STARS][2];
sc = sc_find_softc(adp, NULL);
if (sc == NULL)
return EAGAIN;
scp = sc->cur_scp;
if (blank) {
if (adp->va_info.vi_flags & V_INFO_GRAPHICS)
return EAGAIN;
if (!blanked) {
switch (adp->va_mode) {
case M_PC98_80x25:
case M_PC98_80x30:
colors = color8;
break;
default:
colors = color16;
break;
}
/* clear the screen and set the border color */
sc_vtb_clear(&scp->scr, sc->scr_map[0x20],
(FG_LIGHTGREY | BG_BLACK) << 8);
vidd_set_hw_cursor(adp, -1, -1);
sc_set_border(scp, 0);
blanked = TRUE;
for(i=0; i<NUM_STARS; i++) {
stars[i][0] =
random() % (scp->xsize*scp->ysize);
stars[i][1] = 0;
}
}
cell = random() % NUM_STARS;
sc_vtb_putc(&scp->scr, stars[cell][0],
sc->scr_map[pattern[stars[cell][1]]],
colors[random()%sizeof(color16)] << 8);
if ((stars[cell][1]+=(random()%4)) >= sizeof(pattern)-1) {
stars[cell][0] = random() % (scp->xsize*scp->ysize);
stars[cell][1] = 0;
}
} else
blanked = FALSE;
return 0;
}
static int
star_init(video_adapter_t *adp)
{
blanked = FALSE;
return 0;
}
static int
star_term(video_adapter_t *adp)
{
return 0;
}
static scrn_saver_t star_module = {
"star_saver", star_init, star_term, star_saver, NULL,
};
SAVER_MODULE(star_saver, star_module);
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