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