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
bmp_splash(video_adapter_t *adp, int on)
{
static u_char pal[256*3];
static long time_stamp;
u_char tpal[256*3];
static int fading = TRUE, brightness = FADE_LEVELS;
struct timeval tv;
int i;
if (on) {
if (!splash_on) {
/* set up the video mode and draw something */
if (vidd_set_mode(adp, splash_mode))
return 1;
if (bmp_Draw(adp))
return 1;
vidd_save_palette(adp, pal);
time_stamp = 0;
splash_on = TRUE;
}
/*
* This is a kludge to fade the image away. This section of the
* code takes effect only after the system is completely up.
* FADE_TIMEOUT should be configurable.
*/
if (!cold) {
getmicrotime(&tv);
if (time_stamp == 0)
time_stamp = tv.tv_sec;
if (tv.tv_sec > time_stamp + FADE_TIMEOUT) {
if (fading)
if (brightness == 0) {
fading = FALSE;
brightness++;
}
else brightness--;
else
if (brightness == FADE_LEVELS) {
fading = TRUE;
brightness--;
}
else brightness++;
for (i = 0; i < sizeof(pal); ++i) {
tpal[i] = pal[i] * brightness / FADE_LEVELS;
}
vidd_load_palette(adp, tpal);
time_stamp = tv.tv_sec;
}
}
return 0;
} else {
/* the video mode will be restored by the caller */
splash_on = FALSE;
return 0;
}
}
static void
vga_suspend(device_t dev)
{
vga_softc_t *sc;
int nbytes;
sc = device_get_softc(dev);
/* Save the video state across the suspend. */
if (sc->state_buf != NULL)
goto save_palette;
nbytes = vidd_save_state(sc->adp, NULL, 0);
if (nbytes <= 0)
goto save_palette;
sc->state_buf = malloc(nbytes, M_TEMP, M_NOWAIT);
if (sc->state_buf == NULL)
goto save_palette;
if (bootverbose)
device_printf(dev, "saving %d bytes of video state\n", nbytes);
if (vidd_save_state(sc->adp, sc->state_buf, nbytes) != 0) {
device_printf(dev, "failed to save state (nbytes=%d)\n",
nbytes);
free(sc->state_buf, M_TEMP);
sc->state_buf = NULL;
}
save_palette:
/* Save the color palette across the suspend. */
if (sc->pal_buf != NULL)
return;
sc->pal_buf = malloc(256 * 3, M_TEMP, M_NOWAIT);
if (sc->pal_buf == NULL)
return;
if (bootverbose)
device_printf(dev, "saving color palette\n");
if (vidd_save_palette(sc->adp, sc->pal_buf) != 0) {
device_printf(dev, "failed to save palette\n");
free(sc->pal_buf, M_TEMP);
sc->pal_buf = NULL;
}
}
