2 * Copyright (c) 1995-1998 Søren Schmidt
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 * without modification, immediately at the beginning of the file.
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/fade/fade_saver.c,v 1.18 1999/08/28 00:47:47 peter Exp $
31 #include <sys/param.h>
32 #include <sys/systm.h>
33 #include <sys/kernel.h>
34 #include <sys/module.h>
35 #include <sys/consio.h>
38 #include <dev/fb/fbreg.h>
39 #include <dev/fb/splashreg.h>
40 #include <dev/syscons/syscons.h>
42 static u_char palette[256*3];
46 fade_saver(video_adapter_t *adp, int blank)
54 if (ISPALAVAIL(adp->va_flags)) {
56 save_palette(adp, palette);
58 pal[0] = pal[1] = pal[2] = 0;
59 for (i = 3; i < 256*3; i++) {
60 if (palette[i] - count > 60)
61 pal[i] = palette[i] - count;
65 load_palette(adp, pal);
69 (*vidsw[adp->va_index]->blank_display)(adp,
73 if (ISPALAVAIL(adp->va_flags)) {
74 load_palette(adp, palette);
77 (*vidsw[adp->va_index]->blank_display)(adp,
86 fade_init(video_adapter_t *adp)
88 if (!ISPALAVAIL(adp->va_flags)
89 && (*vidsw[adp->va_index]->blank_display)(adp, V_DISPLAY_ON) != 0)
96 fade_term(video_adapter_t *adp)
101 static scrn_saver_t fade_module = {
102 "fade_saver", fade_init, fade_term, fade_saver, NULL,
105 SAVER_MODULE(fade_saver, fade_module);