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Diffstat (limited to 'driver/test-xdpms.c')
| -rw-r--r-- | driver/test-xdpms.c | 179 |
1 files changed, 179 insertions, 0 deletions
diff --git a/driver/test-xdpms.c b/driver/test-xdpms.c new file mode 100644 index 0000000..b86aed3 --- /dev/null +++ b/driver/test-xdpms.c @@ -0,0 +1,179 @@ +/* test-xdpms.c --- playing with the XDPMS extension. + * xscreensaver, Copyright (c) 1998-2011 Jamie Zawinski <jwz@jwz.org> + * + * Permission to use, copy, modify, distribute, and sell this software and its + * documentation for any purpose is hereby granted without fee, provided that + * the above copyright notice appear in all copies and that both that + * copyright notice and this permission notice appear in supporting + * documentation. No representations are made about the suitability of this + * software for any purpose. It is provided "as is" without express or + * implied warranty. + */ + +#ifdef HAVE_CONFIG_H +# include "config.h" +#endif + +#include <stdlib.h> +#ifdef HAVE_UNISTD_H +# include <unistd.h> +#endif + +#include <stdio.h> +#include <time.h> +#include <sys/time.h> + +#include <X11/Xlib.h> +#include <X11/Xatom.h> +#include <X11/Intrinsic.h> + +#include <X11/Xproto.h> +#include <X11/extensions/dpms.h> +#include <X11/extensions/dpmsstr.h> + +extern Bool DPMSQueryExtension (Display *dpy, int *event_ret, int *error_ret); +extern Bool DPMSCapable (Display *dpy); +extern Status DPMSForceLevel (Display *dpy, CARD16 level); +extern Status DPMSInfo (Display *dpy, CARD16 *power_level, BOOL *state); + +extern Status DPMSGetVersion (Display *dpy, int *major_ret, int *minor_ret); +extern Status DPMSSetTimeouts (Display *dpy, + CARD16 standby, CARD16 suspend, CARD16 off); +extern Bool DPMSGetTimeouts (Display *dpy, + CARD16 *standby, CARD16 *suspend, CARD16 *off); +extern Status DPMSEnable (Display *dpy); +extern Status DPMSDisable (Display *dpy); + + +char *progname = 0; +char *progclass = "XScreenSaver"; + +static const char * +blurb (void) +{ + static char buf[255]; + time_t now = time ((time_t *) 0); + char *ct = (char *) ctime (&now); + int n = strlen(progname); + if (n > 100) n = 99; + strncpy(buf, progname, n); + buf[n++] = ':'; + buf[n++] = ' '; + strncpy(buf+n, ct+11, 8); + strcpy(buf+n+9, ": "); + return buf; +} + + +static Bool error_handler_hit_p = False; + +static int +ignore_all_errors_ehandler (Display *dpy, XErrorEvent *error) +{ + error_handler_hit_p = True; + return 0; +} + + +int +main (int argc, char **argv) +{ + int delay = 10; + + int event_number, error_number; + int major, minor; + CARD16 standby, suspend, off; + CARD16 state; + BOOL onoff; + + XtAppContext app; + Widget toplevel_shell = XtAppInitialize (&app, progclass, 0, 0, + &argc, argv, 0, 0, 0); + Display *dpy = XtDisplay (toplevel_shell); + XtGetApplicationNameAndClass (dpy, &progname, &progclass); + + if (!DPMSQueryExtension(dpy, &event_number, &error_number)) + { + fprintf(stderr, "%s: DPMSQueryExtension(dpy, ...) ==> False\n", + blurb()); + fprintf(stderr, "%s: server does not support the XDPMS extension.\n", + blurb()); + exit(1); + } + else + fprintf(stderr, "%s: DPMSQueryExtension(dpy, ...) ==> %d, %d\n", blurb(), + event_number, error_number); + + if (!DPMSCapable(dpy)) + { + fprintf(stderr, "%s: DPMSCapable(dpy) ==> False\n", blurb()); + fprintf(stderr, "%s: server says hardware doesn't support DPMS.\n", + blurb()); + exit(1); + } + else + fprintf(stderr, "%s: DPMSCapable(dpy) ==> True\n", blurb()); + + if (!DPMSGetVersion(dpy, &major, &minor)) + { + fprintf(stderr, "%s: DPMSGetVersion(dpy, ...) ==> False\n", blurb()); + fprintf(stderr, "%s: server didn't report XDPMS version numbers?\n", + blurb()); + } + else + fprintf(stderr, "%s: DPMSGetVersion(dpy, ...) ==> %d, %d\n", blurb(), + major, minor); + + if (!DPMSGetTimeouts(dpy, &standby, &suspend, &off)) + { + fprintf(stderr, "%s: DPMSGetTimeouts(dpy, ...) ==> False\n", blurb()); + fprintf(stderr, "%s: server didn't report DPMS timeouts?\n", blurb()); + } + else + fprintf(stderr, + "%s: DPMSGetTimeouts(dpy, ...)\n" + "\t ==> standby = %d, suspend = %d, off = %d\n", + blurb(), standby, suspend, off); + + while (1) + { + if (!DPMSInfo(dpy, &state, &onoff)) + { + fprintf(stderr, "%s: DPMSInfo(dpy, ...) ==> False\n", blurb()); + fprintf(stderr, "%s: couldn't read DPMS state?\n", blurb()); + onoff = 0; + state = -1; + } + else + { + fprintf(stderr, "%s: DPMSInfo(dpy, ...) ==> %s, %s\n", blurb(), + (state == DPMSModeOn ? "DPMSModeOn" : + state == DPMSModeStandby ? "DPMSModeStandby" : + state == DPMSModeSuspend ? "DPMSModeSuspend" : + state == DPMSModeOff ? "DPMSModeOff" : "???"), + (onoff == 1 ? "On" : onoff == 0 ? "Off" : "???")); + } + + if (state == DPMSModeStandby || + state == DPMSModeSuspend || + state == DPMSModeOff) + { + XErrorHandler old_handler; + int st; + fprintf(stderr, "%s: monitor is off; turning it on.\n", blurb()); + + XSync (dpy, False); + error_handler_hit_p = False; + old_handler = XSetErrorHandler (ignore_all_errors_ehandler); + XSync (dpy, False); + st = DPMSForceLevel (dpy, DPMSModeOn); + XSync (dpy, False); + if (error_handler_hit_p) st = -666; + + fprintf (stderr, "%s: DPMSForceLevel (dpy, DPMSModeOn) ==> %s\n", + blurb(), (st == -666 ? "X Error" : st ? "Ok" : "Error")); + } + + sleep (delay); + } +} |