2 * SPDX-License-Identifier: BSD-3-Clause
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.
33 #include <sys/param.h>
34 #include <sys/systm.h>
35 #include <sys/kernel.h>
36 #include <sys/module.h>
37 #include <sys/consio.h>
40 #include <dev/fb/fbreg.h>
41 #include <dev/fb/splashreg.h>
42 #include <dev/syscons/syscons.h>
44 static u_char palette[256*3];
47 fade_saver(video_adapter_t *adp, int blank)
54 if (ISPALAVAIL(adp->va_flags)) {
56 vidd_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 vidd_load_palette(adp, pal);
69 vidd_blank_display(adp, V_DISPLAY_BLANK);
72 if (ISPALAVAIL(adp->va_flags)) {
73 vidd_load_palette(adp, palette);
76 vidd_blank_display(adp, V_DISPLAY_ON);
83 fade_init(video_adapter_t *adp)
85 if (!ISPALAVAIL(adp->va_flags) &&
86 vidd_blank_display(adp, V_DISPLAY_ON) != 0)
92 fade_term(video_adapter_t *adp)
97 static scrn_saver_t fade_module = {
98 "fade_saver", fade_init, fade_term, fade_saver, NULL,
101 SAVER_MODULE(fade_saver, fade_module);