4 * Copyright (c) 1995-1998 Søren Schmidt
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer,
12 * without modification, immediately at the beginning of the file.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 * 3. The name of the author may not be used to endorse or promote products
17 * derived from this software without specific prior written permission.
19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
20 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
21 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
22 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
23 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
24 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
28 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30 * $FreeBSD: src/sys/modules/syscons/fade/fade_saver.c,v 1.18 1999/08/28 00:47:47 peter Exp $
31 * $DragonFly: src/sys/dev/misc/syscons/fade/fade_saver.c,v 1.4 2007/08/15 19:31:11 swildner Exp $
34 #include <sys/param.h>
35 #include <sys/systm.h>
36 #include <sys/kernel.h>
37 #include <sys/module.h>
38 #include <sys/consio.h>
40 #include <sys/thread.h>
42 #include <dev/video/fb/fbreg.h>
43 #include <dev/video/fb/splashreg.h>
44 #include "../syscons.h"
46 static u_char palette[256*3];
50 fade_saver(video_adapter_t *adp, int blank)
59 if (ISPALAVAIL(adp->va_flags)) {
61 save_palette(adp, palette);
63 pal[0] = pal[1] = pal[2] = 0;
64 for (i = 3; i < 256*3; i++) {
65 if (palette[i] - count > 60)
66 pal[i] = palette[i] - count;
70 load_palette(adp, pal);
74 (*vidsw[adp->va_index]->blank_display)(adp,
78 if (ISPALAVAIL(adp->va_flags)) {
79 load_palette(adp, palette);
82 (*vidsw[adp->va_index]->blank_display)(adp,
91 fade_init(video_adapter_t *adp)
93 if (!ISPALAVAIL(adp->va_flags)
94 && (*vidsw[adp->va_index]->blank_display)(adp, V_DISPLAY_ON) != 0) {
102 fade_term(video_adapter_t *adp)
107 static scrn_saver_t fade_module = {
108 "fade_saver", fade_init, fade_term, fade_saver, NULL,
111 SAVER_MODULE(fade_saver, fade_module);