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/*-
* Copyright (c) 1998 Dag-Erling Coïdan Smørgrav
* 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
* in this position and unchanged.
* 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/syslog.h>
#include <sys/consio.h>
#include <sys/fbio.h>
#include <dev/fb/fbreg.h>
#include <dev/fb/splashreg.h>
#include <dev/syscons/syscons.h>
#define SAVER_NAME "logo_saver"
#define SET_ORIGIN(adp, o) do { \
int oo = o; \
if (oo != last_origin) \
vidd_set_win_org(adp, last_origin = oo); \
} while (0)
extern unsigned int logo_w;
extern unsigned int logo_h;
extern unsigned char logo_pal[];
extern unsigned char logo_img[];
extern unsigned int logo_img_size;
static u_char *vid;
static int banksize, scrmode, bpsl, scrw, scrh;
static int blanked;
static void
logo_blit(video_adapter_t *adp, int x, int y)
{
int d, l, o, p;
int last_origin = -1;
for (o = 0, p = y * bpsl + x; p > banksize; p -= banksize)
o += banksize;
SET_ORIGIN(adp, o);
for (d = 0; d < logo_img_size; d += logo_w) {
if (p + logo_w < banksize) {
bcopy(logo_img + d, vid + p, logo_w);
p += bpsl;
} else if (p < banksize) {
l = banksize - p;
bcopy(logo_img + d, vid + p, l);
SET_ORIGIN(adp, (o += banksize));
bcopy(logo_img + d + l, vid, logo_w - l);
p += bpsl - banksize;
} else {
p -= banksize;
SET_ORIGIN(adp, (o += banksize));
bcopy(logo_img + d, vid + p, logo_w);
p += bpsl;
}
}
}
static void
logo_update(video_adapter_t *adp)
{
static int xpos = 0, ypos = 0;
static int xinc = 1, yinc = 1;
/* Turn when you hit the edge */
if ((xpos + logo_w + xinc > scrw) || (xpos + xinc < 0))
xinc = -xinc;
if ((ypos + logo_h + yinc > scrh) || (ypos + yinc < 0))
yinc = -yinc;
xpos += xinc;
ypos += yinc;
/* XXX Relies on margin around logo to erase trail */
logo_blit(adp, xpos, ypos);
}
static int
logo_saver(video_adapter_t *adp, int blank)
{
int pl;
if (blank) {
/* switch to graphics mode */
if (blanked <= 0) {
pl = splhigh();
vidd_set_mode(adp, scrmode);
vidd_load_palette(adp, logo_pal);
vidd_set_border(adp, 0);
blanked++;
vid = (u_char *)adp->va_window;
banksize = adp->va_window_size;
bpsl = adp->va_line_width;
splx(pl);
vidd_clear(adp);
}
logo_update(adp);
} else {
blanked = 0;
}
return (0);
}
static int
logo_init(video_adapter_t *adp)
{
video_info_t info;
if (!vidd_get_info(adp, M_VESA_CG800x600, &info)) {
scrmode = M_VESA_CG800x600;
} else if (!vidd_get_info(adp, M_VGA_CG320, &info)) {
scrmode = M_VGA_CG320;
} else if (!vidd_get_info(adp, M_PC98_PEGC640x480, &info)) {
scrmode = M_PC98_PEGC640x480;
} else if (!vidd_get_info(adp, M_PC98_PEGC640x400, &info)) {
scrmode = M_PC98_PEGC640x400;
} else {
log(LOG_NOTICE,
"%s: the console does not support M_VGA_CG320\n",
SAVER_NAME);
return (ENODEV);
}
scrw = info.vi_width;
scrh = info.vi_height;
return (0);
}
static int
logo_term(video_adapter_t *adp)
{
return (0);
}
static scrn_saver_t logo_module = {
SAVER_NAME,
logo_init,
logo_term,
logo_saver,
NULL
};
#ifdef BEASTIE_LOGO
SAVER_MODULE(beastie_saver, logo_module);
#else
SAVER_MODULE(logo_saver, logo_module);
#endif
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