Add the DragonFly cvs id and perform general cleanups on cvs/rcs/sccs ids. Most
[dragonfly.git] / sys / dev / misc / syscons / fade / fade_saver.c
1 /*-
2  * Copyright (c) 1995-1998 Søren Schmidt
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
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.
16  *
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.
27  *
28  * $FreeBSD: src/sys/modules/syscons/fade/fade_saver.c,v 1.18 1999/08/28 00:47:47 peter Exp $
29  * $DragonFly: src/sys/dev/misc/syscons/fade/fade_saver.c,v 1.2 2003/06/17 04:28:47 dillon Exp $
30  */
31
32 #include <sys/param.h>
33 #include <sys/systm.h>
34 #include <sys/kernel.h>
35 #include <sys/module.h>
36 #include <sys/consio.h>
37 #include <sys/fbio.h>
38
39 #include <dev/fb/fbreg.h>
40 #include <dev/fb/splashreg.h>
41 #include <dev/syscons/syscons.h>
42
43 static u_char palette[256*3];
44 static int blanked;
45
46 static int
47 fade_saver(video_adapter_t *adp, int blank)
48 {
49         static int count = 0;
50         u_char pal[256*3];
51         int i;
52
53         if (blank) {
54                 blanked = TRUE;
55                 if (ISPALAVAIL(adp->va_flags)) {
56                         if (count <= 0)
57                                 save_palette(adp, palette);
58                         if (count < 256) {
59                                 pal[0] = pal[1] = pal[2] = 0;
60                                 for (i = 3; i < 256*3; i++) {
61                                         if (palette[i] - count > 60)
62                                                 pal[i] = palette[i] - count;
63                                         else
64                                                 pal[i] = 60;
65                                 }
66                                 load_palette(adp, pal);
67                                 count++;
68                         }
69                 } else {
70                         (*vidsw[adp->va_index]->blank_display)(adp,
71                                                                V_DISPLAY_BLANK);
72                 }
73         } else {
74                 if (ISPALAVAIL(adp->va_flags)) {
75                         load_palette(adp, palette);
76                         count = 0;
77                 } else {
78                         (*vidsw[adp->va_index]->blank_display)(adp,
79                                                                V_DISPLAY_ON);
80                 }
81                 blanked = FALSE;
82         }
83         return 0;
84 }
85
86 static int
87 fade_init(video_adapter_t *adp)
88 {
89         if (!ISPALAVAIL(adp->va_flags)
90             && (*vidsw[adp->va_index]->blank_display)(adp, V_DISPLAY_ON) != 0)
91                 return ENODEV;
92         blanked = FALSE;
93         return 0;
94 }
95
96 static int
97 fade_term(video_adapter_t *adp)
98 {
99         return 0;
100 }
101
102 static scrn_saver_t fade_module = {
103         "fade_saver", fade_init, fade_term, fade_saver, NULL,
104 };
105
106 SAVER_MODULE(fade_saver, fade_module);