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/* -- pm.c -- */
#include "x11vnc.h"
#include "cleanup.h"
void check_pm(void);
static void check_fbpm(void);
#if LIBVNCSERVER_HAVE_FBPM
#include <X11/Xmd.h>
#include <X11/extensions/fbpm.h>
#endif
void check_pm(void) {
check_fbpm();
/* someday dpms activities? */
}
static void check_fbpm(void) {
static int init_fbpm = 0;
#if LIBVNCSERVER_HAVE_FBPM
static int fbpm_capable = 0;
static time_t last_fbpm = 0;
int db = 1;
CARD16 level;
BOOL enabled;
RAWFB_RET_VOID
if (! init_fbpm) {
if (FBPMCapable(dpy)) {
fbpm_capable = 1;
rfbLog("X display is capable of FBPM.\n");
if (watch_fbpm) {
rfbLog("Preventing low-power FBPM modes when"
" VNC clients are connected.\n");
}
} else {
rfbLog("X display is not capable of FBPM.\n");
fbpm_capable = 0;
}
init_fbpm = 1;
}
if (! watch_fbpm) {
return;
}
if (! fbpm_capable) {
return;
}
if (! client_count) {
return;
}
if (time(0) < last_fbpm + 5) {
return;
}
last_fbpm = time(0);
if (FBPMInfo(dpy, &level, &enabled)) {
if (db) fprintf(stderr, "FBPMInfo level: %d enabled: %d\n", level, enabled);
if (enabled && level != FBPMModeOn) {
char *from = "unknown-fbpm-state";
XErrorHandler old_handler = XSetErrorHandler(trap_xerror);
trapped_xerror = 0;
if (level == FBPMModeStandby) {
from = "FBPMModeStandby";
} else if (level == FBPMModeSuspend) {
from = "FBPMModeSuspend";
} else if (level == FBPMModeOff) {
from = "FBPMModeOff";
}
rfbLog("switching FBPM state from %s to FBPMModeOn\n", from);
FBPMForceLevel(dpy, FBPMModeOn);
XSetErrorHandler(old_handler);
trapped_xerror = 0;
}
} else {
if (db) fprintf(stderr, "FBPMInfo failed.\n");
}
#else
RAWFB_RET_VOID
if (! init_fbpm) {
rfbLog("X FBPM extension not supported.\n");
init_fbpm = 1;
}
#endif
}
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