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freebsd-dev/sys/dev/syscons/warp/warp_saver.c

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Finally give FreeBSD a graphical screensaver. It isn't much, but it works, and can serve as a template for further efforts. Consider this my (belated) Christmas present to the Project :) Requested by: jkh
1998-12-27 22:03:09 +00:00
/*-
* Copyright (c) 1998 Dag-Erling Co<EFBFBD>dan Sm<EFBFBD>rgrav
* 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.
*
The first stage of console driver reorganization: activate new keyboard and video card drivers. Because of the changes, you are required to update your kernel configuration file now! The files in sys/dev/syscons are still i386-specific (but less so than before), and won't compile for alpha and PC98 yet. syscons still directly accesses the video card registers here and there; this will be rectified in the later stages.
1999-01-11 03:18:56 +00:00
* $Id: warp_saver.c,v 1.3 1998/12/31 13:38:59 des Exp $
Finally give FreeBSD a graphical screensaver. It isn't much, but it works, and can serve as a template for further efforts. Consider this my (belated) Christmas present to the Project :) Requested by: jkh
1998-12-27 22:03:09 +00:00
*/
#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;
The first stage of console driver reorganization: activate new keyboard and video card drivers. Because of the changes, you are required to update your kernel configuration file now! The files in sys/dev/syscons are still i386-specific (but less so than before), and won't compile for alpha and PC98 yet. syscons still directly accesses the video card registers here and there; this will be rectified in the later stages.
1999-01-11 03:18:56 +00:00
static int blanked;
Finally give FreeBSD a graphical screensaver. It isn't much, but it works, and can serve as a template for further efforts. Consider this my (belated) Christmas present to the Project :) Requested by: jkh
1998-12-27 22:03:09 +00:00
#define SCRW 320
#define SCRH 200
#define SPP 15
#define STARS (SPP*(1+2+4+8))
static int star[STARS];
static u_char warp_pal[768] = {
0x00, 0x00, 0x00,
0x66, 0x66, 0x66,
0x99, 0x99, 0x99,
0xcc, 0xcc, 0xcc,
0xff, 0xff, 0xff
/* the rest is zero-filled by the compiler */
};
static void
warp_update(void)
{
int i, j, k, n;
Save the palette in case syscons doesn't restore it properly. Fix a minor overflow.
1998-12-28 14:20:13 +00:00
for (i = 1, k = 0, n = SPP*8; i < 5; i++, n /= 2)
Finally give FreeBSD a graphical screensaver. It isn't much, but it works, and can serve as a template for further efforts. Consider this my (belated) Christmas present to the Project :) Requested by: jkh
1998-12-27 22:03:09 +00:00
for (j = 0; j < n; j++, k++) {
vid[star[k]] = 0;
star[k] += i;
if (star[k] > SCRW*SCRH)
star[k] -= SCRW*SCRH;
vid[star[k]] = i;
}
}
The first stage of console driver reorganization: activate new keyboard and video card drivers. Because of the changes, you are required to update your kernel configuration file now! The files in sys/dev/syscons are still i386-specific (but less so than before), and won't compile for alpha and PC98 yet. syscons still directly accesses the video card registers here and there; this will be rectified in the later stages.
1999-01-11 03:18:56 +00:00
static int
warp_saver(video_adapter_t *adp, int blank)
Finally give FreeBSD a graphical screensaver. It isn't much, but it works, and can serve as a template for further efforts. Consider this my (belated) Christmas present to the Project :) Requested by: jkh
1998-12-27 22:03:09 +00:00
{
int pl;
if (blank) {
/* switch to graphics mode */
The first stage of console driver reorganization: activate new keyboard and video card drivers. Because of the changes, you are required to update your kernel configuration file now! The files in sys/dev/syscons are still i386-specific (but less so than before), and won't compile for alpha and PC98 yet. syscons still directly accesses the video card registers here and there; this will be rectified in the later stages.
1999-01-11 03:18:56 +00:00
if (blanked <= 0) {
Finally give FreeBSD a graphical screensaver. It isn't much, but it works, and can serve as a template for further efforts. Consider this my (belated) Christmas present to the Project :) Requested by: jkh
1998-12-27 22:03:09 +00:00
pl = splhigh();
The first stage of console driver reorganization: activate new keyboard and video card drivers. Because of the changes, you are required to update your kernel configuration file now! The files in sys/dev/syscons are still i386-specific (but less so than before), and won't compile for alpha and PC98 yet. syscons still directly accesses the video card registers here and there; this will be rectified in the later stages.
1999-01-11 03:18:56 +00:00
set_video_mode(adp, M_VGA_CG320, warp_pal, 0);
blanked++;
vid = (u_char *)adp->va_window;
Finally give FreeBSD a graphical screensaver. It isn't much, but it works, and can serve as a template for further efforts. Consider this my (belated) Christmas present to the Project :) Requested by: jkh
1998-12-27 22:03:09 +00:00
splx(pl);
bzero(vid, SCRW*SCRH);
}
/* update display */
warp_update();
} else {
The first stage of console driver reorganization: activate new keyboard and video card drivers. Because of the changes, you are required to update your kernel configuration file now! The files in sys/dev/syscons are still i386-specific (but less so than before), and won't compile for alpha and PC98 yet. syscons still directly accesses the video card registers here and there; this will be rectified in the later stages.
1999-01-11 03:18:56 +00:00
blanked = 0;
Finally give FreeBSD a graphical screensaver. It isn't much, but it works, and can serve as a template for further efforts. Consider this my (belated) Christmas present to the Project :) Requested by: jkh
1998-12-27 22:03:09 +00:00
}
The first stage of console driver reorganization: activate new keyboard and video card drivers. Because of the changes, you are required to update your kernel configuration file now! The files in sys/dev/syscons are still i386-specific (but less so than before), and won't compile for alpha and PC98 yet. syscons still directly accesses the video card registers here and there; this will be rectified in the later stages.
1999-01-11 03:18:56 +00:00
return 0;
Finally give FreeBSD a graphical screensaver. It isn't much, but it works, and can serve as a template for further efforts. Consider this my (belated) Christmas present to the Project :) Requested by: jkh
1998-12-27 22:03:09 +00:00
}
static int
The first stage of console driver reorganization: activate new keyboard and video card drivers. Because of the changes, you are required to update your kernel configuration file now! The files in sys/dev/syscons are still i386-specific (but less so than before), and won't compile for alpha and PC98 yet. syscons still directly accesses the video card registers here and there; this will be rectified in the later stages.
1999-01-11 03:18:56 +00:00
warp_init(video_adapter_t *adp)
Finally give FreeBSD a graphical screensaver. It isn't much, but it works, and can serve as a template for further efforts. Consider this my (belated) Christmas present to the Project :) Requested by: jkh
1998-12-27 22:03:09 +00:00
{
video_info_t info;
int i;
/* check that the console is capable of running in 320x200x256 */
The first stage of console driver reorganization: activate new keyboard and video card drivers. Because of the changes, you are required to update your kernel configuration file now! The files in sys/dev/syscons are still i386-specific (but less so than before), and won't compile for alpha and PC98 yet. syscons still directly accesses the video card registers here and there; this will be rectified in the later stages.
1999-01-11 03:18:56 +00:00
if (get_mode_info(adp, M_VGA_CG320, &info)) {
Finally give FreeBSD a graphical screensaver. It isn't much, but it works, and can serve as a template for further efforts. Consider this my (belated) Christmas present to the Project :) Requested by: jkh
1998-12-27 22:03:09 +00:00
log(LOG_NOTICE, "warp_saver: the console does not support M_VGA_CG320\n");
return ENODEV;
}
/* randomize the star field */
for (i = 0; i < STARS; i++) {
star[i] = random() % (SCRW*SCRH);
}
The first stage of console driver reorganization: activate new keyboard and video card drivers. Because of the changes, you are required to update your kernel configuration file now! The files in sys/dev/syscons are still i386-specific (but less so than before), and won't compile for alpha and PC98 yet. syscons still directly accesses the video card registers here and there; this will be rectified in the later stages.
1999-01-11 03:18:56 +00:00
blanked = 0;
return 0;
Finally give FreeBSD a graphical screensaver. It isn't much, but it works, and can serve as a template for further efforts. Consider this my (belated) Christmas present to the Project :) Requested by: jkh
1998-12-27 22:03:09 +00:00
}
static int
The first stage of console driver reorganization: activate new keyboard and video card drivers. Because of the changes, you are required to update your kernel configuration file now! The files in sys/dev/syscons are still i386-specific (but less so than before), and won't compile for alpha and PC98 yet. syscons still directly accesses the video card registers here and there; this will be rectified in the later stages.
1999-01-11 03:18:56 +00:00
warp_term(video_adapter_t *adp)
Finally give FreeBSD a graphical screensaver. It isn't much, but it works, and can serve as a template for further efforts. Consider this my (belated) Christmas present to the Project :) Requested by: jkh
1998-12-27 22:03:09 +00:00
{
The first stage of console driver reorganization: activate new keyboard and video card drivers. Because of the changes, you are required to update your kernel configuration file now! The files in sys/dev/syscons are still i386-specific (but less so than before), and won't compile for alpha and PC98 yet. syscons still directly accesses the video card registers here and there; this will be rectified in the later stages.
1999-01-11 03:18:56 +00:00
return 0;
Finally give FreeBSD a graphical screensaver. It isn't much, but it works, and can serve as a template for further efforts. Consider this my (belated) Christmas present to the Project :) Requested by: jkh
1998-12-27 22:03:09 +00:00
}
The first stage of console driver reorganization: activate new keyboard and video card drivers. Because of the changes, you are required to update your kernel configuration file now! The files in sys/dev/syscons are still i386-specific (but less so than before), and won't compile for alpha and PC98 yet. syscons still directly accesses the video card registers here and there; this will be rectified in the later stages.
1999-01-11 03:18:56 +00:00
static scrn_saver_t warp_module = {
"warp_saver", warp_init, warp_term, warp_saver, NULL,
};
SAVER_MODULE(warp_saver, warp_module);
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