d/freebsd-skq
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Upgrade the "snake" syscons screensaver to the new, multimedia version!

Browse Source 
Now, with color! And system load averages!

Amused by it:	gnn
This commit is contained in:
Ivan Voras 2010-02-23 15:12:41 +00:00
parent 34f19b54cd
commit c0414ca779
1 changed files with 49 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

55
sys/dev/syscons/snake/snake_saver.c
View File

@ -36,6 +36,8 @@
#include <sys/sysctl.h>
#include <sys/consio.h>
#include <sys/fbio.h>
#include <sys/resourcevar.h>
#include <sys/smp.h>
#include <machine/pc/display.h>
@ -48,11 +50,22 @@ static int *messagep;
static int messagelen;
static int blanked;
#define MSGBUF_LEN 70
static int nofancy = 0;
TUNABLE_INT("hw.syscons.saver_snake_nofancy", &nofancy);
#define FANCY_SNAKE (!nofancy)
#define LOAD_HIGH(ld) (((ld * 100 + FSCALE / 2) >> FSHIFT) / 100)
#define LOAD_LOW(ld) (((ld * 100 + FSCALE / 2) >> FSHIFT) % 100)
static inline void update_msg(void);
static int
snake_saver(video_adapter_t *adp, int blank)
{
static int dirx, diry;
int f;
int f, color, load;
sc_softc_t *sc;
scr_stat *scp;
@ -99,22 +112,52 @@ snake_saver(video_adapter_t *adp, int blank)
(random() % 20) == 0)
diry = -diry;
savs[0] += dirx + diry;
if (FANCY_SNAKE) {
update_msg();
load = LOAD_HIGH(averunnable.ldavg[0]) * 100;
if (load == 0)
color = FG_LIGHTGREY | BG_BLACK;
else if (load / mp_ncpus <= 50)
color = FG_LIGHTGREEN | BG_BLACK;
else if (load / mp_ncpus <= 75)
color = FG_YELLOW | BG_BLACK;
else if (load / mp_ncpus <= 99)
color = FG_LIGHTRED | BG_BLACK;
else
color = FG_RED | FG_BLINK | BG_BLACK;
} else
color = FG_LIGHTGREY | BG_BLACK;
for (f=messagelen-1; f>=0; f--)
sc_vtb_putc(&scp->scr, savs[f], sc->scr_map[save[f]],
(FG_LIGHTGREY | BG_BLACK) << 8);
color << 8);
} else
blanked = 0;
return 0;
}
static inline void
update_msg(void)
{
if (!FANCY_SNAKE) {
messagelen = sprintf(message, "%s %s", ostype, osrelease);
return;
}
messagelen = snprintf(message, MSGBUF_LEN,
"%s %s (%d.%02d %d.%02d, %d.%02d)",
ostype, osrelease,
LOAD_HIGH(averunnable.ldavg[0]), LOAD_LOW(averunnable.ldavg[0]),
LOAD_HIGH(averunnable.ldavg[1]), LOAD_LOW(averunnable.ldavg[1]),
LOAD_HIGH(averunnable.ldavg[2]), LOAD_LOW(averunnable.ldavg[2]));
}
static int
snake_init(video_adapter_t *adp)
{
messagelen = strlen(ostype) + 1 + strlen(osrelease);
message = malloc(messagelen + 1, M_DEVBUF, M_WAITOK);
sprintf(message, "%s %s", ostype, osrelease);
messagep = malloc(messagelen * sizeof *messagep, M_DEVBUF, M_WAITOK);
message = malloc(MSGBUF_LEN, M_DEVBUF, M_WAITOK);
messagep = malloc(MSGBUF_LEN * sizeof *messagep, M_DEVBUF, M_WAITOK);
update_msg();
return 0;
}