diff options
Diffstat (limited to 'sys/modules/syscons/fire')
| -rw-r--r-- | sys/modules/syscons/fire/Makefile | 9 | ||||
| -rw-r--r-- | sys/modules/syscons/fire/fire_saver.c | 136 |
2 files changed, 145 insertions, 0 deletions
diff --git a/sys/modules/syscons/fire/Makefile b/sys/modules/syscons/fire/Makefile new file mode 100644 index 0000000..e078f2c --- /dev/null +++ b/sys/modules/syscons/fire/Makefile @@ -0,0 +1,9 @@ + +KMOD= fire_saver +SRCS= fire_saver.c + +NOMAN= +CFLAGS+= -I${.CURDIR}/.. +CWARNFLAGS= -Wall -pedantic + +.include <bsd.kmod.mk> diff --git a/sys/modules/syscons/fire/fire_saver.c b/sys/modules/syscons/fire/fire_saver.c new file mode 100644 index 0000000..59c7079 --- /dev/null +++ b/sys/modules/syscons/fire/fire_saver.c @@ -0,0 +1,136 @@ +/*- + * Copyright (c) 1999 Brad Forschinger + * 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. + * + * 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. + * + * $FreeBSD$ + */ + +/* + * brad forschinger, 19990504 <retch@flag.blackened.net> + * + * written with much help from warp_saver.c + * + */ + +#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 <machine/random.h> + +#include <dev/fb/fbreg.h> +#include <dev/fb/splashreg.h> +#include <dev/syscons/syscons.h> + +#define X_SIZE 320 +#define Y_SIZE 200 + +static int blanked; +static u_char fire_pal[768]; +static u_char buf[X_SIZE * (Y_SIZE + 1)]; +static u_char *vid; + +static int +fire_saver(video_adapter_t *adp, int blank) +{ + int x, y; + + if (blank) { + if (blanked <= 0) { + int red, green, blue; + int palette_index; + + set_video_mode(adp, M_VGA_CG320); + + /* build and load palette */ + red = green = blue = 0; + for (palette_index = 0; palette_index < 256; palette_index++) { + red++; + if (red > 128) + green += 2; + + fire_pal[(palette_index * 3) + 0] = red; + fire_pal[(palette_index * 3) + 1] = green; + fire_pal[(palette_index * 3) + 2] = blue; + } + load_palette(adp, fire_pal); + + blanked++; + vid = (u_char *) adp->va_window; + } + /* make a new bottom line */ + for (x = 0, y = Y_SIZE; x < X_SIZE; x++) + buf[x + (y * X_SIZE)] = random() % 160 + 96; + + /* fade the flames out */ + for (y = 0; y < Y_SIZE; y++) { + for (x = 0; x < X_SIZE; x++) { + buf[x + (y * X_SIZE)] = (buf[(x + 0) + ((y + 0) * X_SIZE)] + + buf[(x - 1) + ((y + 1) * X_SIZE)] + + buf[(x + 0) + ((y + 1) * X_SIZE)] + + buf[(x + 1) + ((y + 1) * X_SIZE)]) / 4; + if (buf[x + (y * X_SIZE)] > 0) + buf[x + (y * X_SIZE)]--; + } + } + + /* blit our buffer into video ram */ + memcpy(vid, buf, X_SIZE * Y_SIZE); + } else { + blanked = 0; + } + + return 0; +} + +static int +fire_initialise(video_adapter_t *adp) +{ + video_info_t info; + + /* check that the console is capable of running in 320x200x256 */ + if (get_mode_info(adp, M_VGA_CG320, &info)) { + log(LOG_NOTICE, "fire_saver: the console does not support M_VGA_CG320\n"); + return (ENODEV); + } + blanked = 0; + + return 0; +} + +static int +fire_terminate(video_adapter_t *adp) +{ + return 0; +} + +static scrn_saver_t fire_module = { + "fire_saver", fire_initialise, fire_terminate, fire_saver, NULL +}; + +SAVER_MODULE(fire_saver, fire_module); |
