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/*-
* SPDX-License-Identifier: BSD-3-Clause
*
* Copyright (c) 1995-1998 Søren Schmidt
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer,
* without modification, immediately at the beginning of the file.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* $FreeBSD$
*/
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/module.h>
#include <sys/consio.h>
#include <sys/fbio.h>
#include <dev/fb/fbreg.h>
#include <dev/fb/splashreg.h>
#include <dev/syscons/syscons.h>
static u_char palette[256*3];
static int
fade_saver(video_adapter_t *adp, int blank)
{
static int count = 0;
u_char pal[256*3];
int i;
if (blank) {
if (ISPALAVAIL(adp->va_flags)) {
if (count <= 0)
vidd_save_palette(adp, palette);
if (count < 256) {
pal[0] = pal[1] = pal[2] = 0;
for (i = 3; i < 256*3; i++) {
if (palette[i] - count > 60)
pal[i] = palette[i] - count;
else
pal[i] = 60;
}
vidd_load_palette(adp, pal);
count++;
}
} else {
vidd_blank_display(adp, V_DISPLAY_BLANK);
}
} else {
if (ISPALAVAIL(adp->va_flags)) {
vidd_load_palette(adp, palette);
count = 0;
} else {
vidd_blank_display(adp, V_DISPLAY_ON);
}
}
return 0;
}
static int
fade_init(video_adapter_t *adp)
{
if (!ISPALAVAIL(adp->va_flags) &&
vidd_blank_display(adp, V_DISPLAY_ON) != 0)
return ENODEV;
return 0;
}
static int
fade_term(video_adapter_t *adp)
{
return 0;
}
static scrn_saver_t fade_module = {
"fade_saver", fade_init, fade_term, fade_saver, NULL,
};
SAVER_MODULE(fade_saver, fade_module);
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