Here's one for the terminally melancholic amongst us.
This commit is contained in:
Dag-Erling Smørgrav
parent
9d852dd5a7
commit
52ff03bd8b
|
|
@ -0,0 +1,136 @@
|
|||
/*-
|
||||
* Copyright (c) 1998 Dag-Erling Coïdan Smørgrav
|
||||
* 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
|
||||
* in this position and unchanged.
|
||||
* 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.
|
||||
*
|
||||
* $Id$
|
||||
*/
|
||||
|
||||
#include <sys/param.h>
|
||||
#include <sys/systm.h>
|
||||
#include <sys/kernel.h>
|
||||
#include <sys/module.h>
|
||||
#include <sys/syslog.h>
|
||||
|
||||
#include <machine/md_var.h>
|
||||
#include <machine/random.h>
|
||||
|
||||
#include <saver.h>
|
||||
|
||||
static u_char *vid;
|
||||
|
||||
#define SCRW 320
|
||||
#define SCRH 200
|
||||
#define MAX 63
|
||||
|
||||
static u_char save_pal[768];
|
||||
static u_char rain_pal[768];
|
||||
|
||||
static void
|
||||
rain_update(void)
|
||||
{
|
||||
int i, t;
|
||||
|
||||
t = rain_pal[(MAX*3+2)];
|
||||
for (i = (MAX*3+2); i > 5; i -= 3)
|
||||
rain_pal[i] = rain_pal[i-3];
|
||||
rain_pal[5] = t;
|
||||
load_palette(cur_console, rain_pal);
|
||||
}
|
||||
|
||||
static void
|
||||
rain_saver(int blank)
|
||||
{
|
||||
scr_stat *scp = cur_console;
|
||||
static int saved_mode;
|
||||
int i, j, k, pl;
|
||||
|
||||
if (blank) {
|
||||
/* switch to graphics mode */
|
||||
if (scrn_blanked <= 0) {
|
||||
pl = splhigh();
|
||||
saved_mode = scp->mode;
|
||||
scp->mode = M_VGA_CG320;
|
||||
scp->status |= SAVER_RUNNING|GRAPHICS_MODE;
|
||||
save_palette(scp, save_pal);
|
||||
set_mode(scp);
|
||||
load_palette(scp, rain_pal);
|
||||
scrn_blanked++;
|
||||
vid = (u_char *)Crtat;
|
||||
splx(pl);
|
||||
bzero(vid, SCRW*SCRH);
|
||||
for (i = 0; i < SCRW; i += 2)
|
||||
vid[i] = 1 + (random() % MAX);
|
||||
for (j = 1, k = SCRW; j < SCRH; j++)
|
||||
for (i = 0; i < SCRW; i += 2, k += 2)
|
||||
vid[k] = (vid[k-SCRW] < MAX) ? 1 + vid[k-SCRW] : 1;
|
||||
}
|
||||
|
||||
/* update display */
|
||||
rain_update();
|
||||
|
||||
} else {
|
||||
/* return to previous video mode */
|
||||
if (scrn_blanked > 0) {
|
||||
if (saved_mode) {
|
||||
pl = splhigh();
|
||||
scrn_blanked = 0;
|
||||
scp->mode = saved_mode;
|
||||
scp->status &= ~(SAVER_RUNNING|GRAPHICS_MODE);
|
||||
set_mode(scp);
|
||||
load_palette(scp, save_pal);
|
||||
saved_mode = 0;
|
||||
splx(pl);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
static int
|
||||
rain_saver_load(void)
|
||||
{
|
||||
video_info_t info;
|
||||
int i;
|
||||
|
||||
/* check that the console is capable of running in 320x200x256 */
|
||||
if ((*biosvidsw.get_info)(cur_console->adp, M_VGA_CG320, &info)) {
|
||||
log(LOG_NOTICE, "rain_saver: the console does not support M_VGA_CG320\n");
|
||||
return ENODEV;
|
||||
}
|
||||
|
||||
/* intialize the palette */
|
||||
for (i = 3; i < (MAX+1)*3; i += 3)
|
||||
rain_pal[i+2] = rain_pal[i-1] + 4;
|
||||
|
||||
return add_scrn_saver(rain_saver);
|
||||
}
|
||||
|
||||
static int
|
||||
rain_saver_unload(void)
|
||||
{
|
||||
return remove_scrn_saver(rain_saver);
|
||||
}
|
||||
|
||||
SAVER_MODULE(rain_saver);
|
||||
|
|
@ -0,0 +1,10 @@
|
|||
# $Id: Makefile,v 1.1 1998/12/27 22:03:09 des Exp $
|
||||
|
||||
KMOD= rain_saver
|
||||
SRCS= rain_saver.c
|
||||
|
||||
NOMAN=
|
||||
CFLAGS+= -I${.CURDIR}/..
|
||||
CWARNFLAGS= -Wall -pedantic
|
||||
|
||||
.include <bsd.kmod.mk>
|
||||
|
|
@ -0,0 +1,136 @@
|
|||
/*-
|
||||
* Copyright (c) 1998 Dag-Erling Coïdan Smørgrav
|
||||
* 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
|
||||
* in this position and unchanged.
|
||||
* 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.
|
||||
*
|
||||
* $Id$
|
||||
*/
|
||||
|
||||
#include <sys/param.h>
|
||||
#include <sys/systm.h>
|
||||
#include <sys/kernel.h>
|
||||
#include <sys/module.h>
|
||||
#include <sys/syslog.h>
|
||||
|
||||
#include <machine/md_var.h>
|
||||
#include <machine/random.h>
|
||||
|
||||
#include <saver.h>
|
||||
|
||||
static u_char *vid;
|
||||
|
||||
#define SCRW 320
|
||||
#define SCRH 200
|
||||
#define MAX 63
|
||||
|
||||
static u_char save_pal[768];
|
||||
static u_char rain_pal[768];
|
||||
|
||||
static void
|
||||
rain_update(void)
|
||||
{
|
||||
int i, t;
|
||||
|
||||
t = rain_pal[(MAX*3+2)];
|
||||
for (i = (MAX*3+2); i > 5; i -= 3)
|
||||
rain_pal[i] = rain_pal[i-3];
|
||||
rain_pal[5] = t;
|
||||
load_palette(cur_console, rain_pal);
|
||||
}
|
||||
|
||||
static void
|
||||
rain_saver(int blank)
|
||||
{
|
||||
scr_stat *scp = cur_console;
|
||||
static int saved_mode;
|
||||
int i, j, k, pl;
|
||||
|
||||
if (blank) {
|
||||
/* switch to graphics mode */
|
||||
if (scrn_blanked <= 0) {
|
||||
pl = splhigh();
|
||||
saved_mode = scp->mode;
|
||||
scp->mode = M_VGA_CG320;
|
||||
scp->status |= SAVER_RUNNING|GRAPHICS_MODE;
|
||||
save_palette(scp, save_pal);
|
||||
set_mode(scp);
|
||||
load_palette(scp, rain_pal);
|
||||
scrn_blanked++;
|
||||
vid = (u_char *)Crtat;
|
||||
splx(pl);
|
||||
bzero(vid, SCRW*SCRH);
|
||||
for (i = 0; i < SCRW; i += 2)
|
||||
vid[i] = 1 + (random() % MAX);
|
||||
for (j = 1, k = SCRW; j < SCRH; j++)
|
||||
for (i = 0; i < SCRW; i += 2, k += 2)
|
||||
vid[k] = (vid[k-SCRW] < MAX) ? 1 + vid[k-SCRW] : 1;
|
||||
}
|
||||
|
||||
/* update display */
|
||||
rain_update();
|
||||
|
||||
} else {
|
||||
/* return to previous video mode */
|
||||
if (scrn_blanked > 0) {
|
||||
if (saved_mode) {
|
||||
pl = splhigh();
|
||||
scrn_blanked = 0;
|
||||
scp->mode = saved_mode;
|
||||
scp->status &= ~(SAVER_RUNNING|GRAPHICS_MODE);
|
||||
set_mode(scp);
|
||||
load_palette(scp, save_pal);
|
||||
saved_mode = 0;
|
||||
splx(pl);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
static int
|
||||
rain_saver_load(void)
|
||||
{
|
||||
video_info_t info;
|
||||
int i;
|
||||
|
||||
/* check that the console is capable of running in 320x200x256 */
|
||||
if ((*biosvidsw.get_info)(cur_console->adp, M_VGA_CG320, &info)) {
|
||||
log(LOG_NOTICE, "rain_saver: the console does not support M_VGA_CG320\n");
|
||||
return ENODEV;
|
||||
}
|
||||
|
||||
/* intialize the palette */
|
||||
for (i = 3; i < (MAX+1)*3; i += 3)
|
||||
rain_pal[i+2] = rain_pal[i-1] + 4;
|
||||
|
||||
return add_scrn_saver(rain_saver);
|
||||
}
|
||||
|
||||
static int
|
||||
rain_saver_unload(void)
|
||||
{
|
||||
return remove_scrn_saver(rain_saver);
|
||||
}
|
||||
|
||||
SAVER_MODULE(rain_saver);
|
||||
Loading…
Reference in New Issue