2 * Copyright (c) 1998 Dag-Erling Coïdan Smørgrav
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer
10 * in this position and unchanged.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 * 3. The name of the author may not be used to endorse or promote products
15 * derived from this software without specific prior written permission
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28 * $FreeBSD: src/sys/modules/syscons/warp/warp_saver.c,v 1.7.2.1 2000/05/10 16:26:47 obrien Exp $
29 * $DragonFly: src/sys/dev/misc/syscons/warp/warp_saver.c,v 1.5 2006/09/03 18:52:28 dillon Exp $
32 #include <sys/param.h>
33 #include <sys/systm.h>
34 #include <sys/kernel.h>
35 #include <sys/module.h>
36 #include <sys/syslog.h>
37 #include <sys/consio.h>
39 #include <sys/random.h>
40 #include <sys/thread2.h>
42 #include <dev/video/fb/fbreg.h>
43 #include <dev/video/fb/splashreg.h>
44 #include "../syscons.h"
52 #define STARS (SPP*(1+2+4+8))
54 static int star[STARS];
55 static u_char warp_pal[768] = {
61 /* the rest is zero-filled by the compiler */
69 for (i = 1, k = 0, n = SPP*8; i < 5; i++, n /= 2)
70 for (j = 0; j < n; j++, k++) {
73 if (star[k] > SCRW*SCRH)
80 warp_saver(video_adapter_t *adp, int blank)
83 /* switch to graphics mode */
86 set_video_mode(adp, M_VGA_CG320);
87 load_palette(adp, warp_pal);
88 #if 0 /* XXX conflict */
92 vid = (u_char *)adp->va_window;
94 bzero(vid, SCRW*SCRH);
107 warp_init(video_adapter_t *adp)
112 /* check that the console is capable of running in 320x200x256 */
113 if (get_mode_info(adp, M_VGA_CG320, &info)) {
114 log(LOG_NOTICE, "warp_saver: the console does not support M_VGA_CG320\n");
118 /* randomize the star field */
119 for (i = 0; i < STARS; i++) {
120 star[i] = krandom() % (SCRW*SCRH);
129 warp_term(video_adapter_t *adp)
134 static scrn_saver_t warp_module = {
135 "warp_saver", warp_init, warp_term, warp_saver, NULL,
138 SAVER_MODULE(warp_saver, warp_module);