2b944ee2b9
- Split terminal emulation code from the main part of the driver so that we can have alternative terminal emulator modules if we like in the future. (We are not quite there yet, though.) - Put sysmouse related code in a separate file, thus, simplifying the main part of the driver. As some files are added to the source tree, you need to run config(8) before you compile a new kernel next time. You shouldn't see any functional change by this commit; this is only internal code reorganization.
149 lines
4.2 KiB
C
149 lines
4.2 KiB
C
/*-
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* Copyright (c) 1995-1998 Søren Schmidt
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer,
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* without modification, immediately at the beginning of the file.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/module.h>
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#include <sys/malloc.h>
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#include <sys/kernel.h>
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#include <sys/sysctl.h>
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#include <sys/consio.h>
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#include <sys/fbio.h>
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#include <machine/pc/display.h>
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#include <dev/fb/fbreg.h>
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#include <dev/fb/splashreg.h>
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#include <dev/syscons/syscons.h>
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static char *message;
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static int *messagep;
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static int messagelen;
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static int blanked;
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static int
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snake_saver(video_adapter_t *adp, int blank)
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{
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static int dirx, diry;
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int f;
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sc_softc_t *sc;
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scr_stat *scp;
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/* XXX hack for minimal changes. */
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#define save message
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#define savs messagep
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sc = sc_find_softc(adp, NULL);
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if (sc == NULL)
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return EAGAIN;
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scp = sc->cur_scp;
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if (blank) {
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if (adp->va_info.vi_flags & V_INFO_GRAPHICS)
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return EAGAIN;
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if (blanked <= 0) {
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#ifdef PC98
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if (epson_machine_id == 0x20) {
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outb(0x43f, 0x42);
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outb(0x0c17, inb(0xc17) & ~0x08);
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outb(0x43f, 0x40);
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}
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#endif /* PC98 */
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sc_vtb_clear(&scp->scr, sc->scr_map[0x20],
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(FG_LIGHTGREY | BG_BLACK) << 8);
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(*vidsw[adp->va_index]->set_hw_cursor)(adp, -1, -1);
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sc_set_border(scp, 0);
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dirx = (scp->xpos ? 1 : -1);
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diry = (scp->ypos ?
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scp->xsize : -scp->xsize);
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for (f=0; f< messagelen; f++)
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savs[f] = scp->xpos + scp->ypos*scp->xsize;
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sc_vtb_putc(&scp->scr, savs[0], sc->scr_map[*save],
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(FG_LIGHTGREY | BG_BLACK) << 8);
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blanked = 1;
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}
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if (blanked++ < 4)
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return 0;
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blanked = 1;
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sc_vtb_putc(&scp->scr, savs[messagelen - 1], sc->scr_map[0x20],
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(FG_LIGHTGREY | BG_BLACK) << 8);
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for (f=messagelen-1; f > 0; f--)
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savs[f] = savs[f-1];
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f = savs[0];
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if ((f % scp->xsize) == 0 ||
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(f % scp->xsize) == scp->xsize - 1 ||
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(random() % 50) == 0)
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dirx = -dirx;
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if ((f / scp->xsize) == 0 ||
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(f / scp->xsize) == scp->ysize - 1 ||
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(random() % 20) == 0)
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diry = -diry;
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savs[0] += dirx + diry;
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for (f=messagelen-1; f>=0; f--)
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sc_vtb_putc(&scp->scr, savs[f], sc->scr_map[save[f]],
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(FG_LIGHTGREY | BG_BLACK) << 8);
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}
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else {
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#ifdef PC98
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if (epson_machine_id == 0x20) {
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outb(0x43f, 0x42);
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outb(0x0c17, inb(0xc17) | 0x08);
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outb(0x43f, 0x40);
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}
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#endif /* PC98 */
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blanked = 0;
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}
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return 0;
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}
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static int
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snake_init(video_adapter_t *adp)
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{
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messagelen = strlen(ostype) + 1 + strlen(osrelease);
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message = malloc(messagelen + 1, M_DEVBUF, M_WAITOK);
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sprintf(message, "%s %s", ostype, osrelease);
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messagep = malloc(messagelen * sizeof *messagep, M_DEVBUF, M_WAITOK);
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return 0;
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}
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static int
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snake_term(video_adapter_t *adp)
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{
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free(message, M_DEVBUF);
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free(messagep, M_DEVBUF);
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return 0;
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}
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static scrn_saver_t snake_module = {
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"snake_saver", snake_init, snake_term, snake_saver, NULL,
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};
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SAVER_MODULE(snake_saver, snake_module);
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