diff options
Diffstat (limited to 'driver/test-vp.c')
| -rw-r--r-- | driver/test-vp.c | 213 |
1 files changed, 213 insertions, 0 deletions
diff --git a/driver/test-vp.c b/driver/test-vp.c new file mode 100644 index 0000000..bf1a0b1 --- /dev/null +++ b/driver/test-vp.c @@ -0,0 +1,213 @@ +/* test-xinerama.c --- playing with XF86VidModeGetViewPort + * xscreensaver, Copyright (c) 2004 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/xf86vmode.h> +#include <X11/extensions/Xinerama.h> + +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; +} + + +static int +screen_count (Display *dpy) +{ + int n = ScreenCount(dpy); + int xn = 0; + int event_number, error_number; + + if (!XineramaQueryExtension (dpy, &event_number, &error_number)) + { + fprintf(stderr, "%s: XineramaQueryExtension(dpy, ...) ==> False\n", + blurb()); + goto DONE; + } + else + fprintf(stderr, "%s: XineramaQueryExtension(dpy, ...) ==> %d, %d\n", + blurb(), event_number, error_number); + + if (!XineramaIsActive(dpy)) + { + fprintf(stderr, "%s: XineramaIsActive(dpy) ==> False\n", + blurb()); + goto DONE; + } + else + { + int major, minor; + XineramaScreenInfo *xsi; + fprintf(stderr, "%s: XineramaIsActive(dpy) ==> True\n", + blurb()); + if (!XineramaQueryVersion(dpy, &major, &minor)) + { + fprintf(stderr, + "%s: XineramaQueryVersion(dpy, ...) ==> False\n", + blurb()); + goto DONE; + } + else + fprintf(stderr, + "%s: XineramaQueryVersion(dpy, ...) ==> %d, %d\n", + blurb(), major, minor); + + xsi = XineramaQueryScreens (dpy, &xn); + if (xsi) XFree (xsi); + } + + DONE: + fprintf (stderr, "\n"); + fprintf (stderr, "%s: X client screens: %d\n", blurb(), n); + fprintf (stderr, "%s: Xinerama screens: %d\n", blurb(), xn); + fprintf (stderr, "\n"); + + if (xn > n) return xn; + else return n; +} + + +int +main (int argc, char **argv) +{ + int event_number, error_number; + int major, minor; + int nscreens = 0; + int i; + + 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 (!XF86VidModeQueryExtension(dpy, &event_number, &error_number)) + { + fprintf(stderr, "%s: XF86VidModeQueryExtension(dpy, ...) ==> False\n", + blurb()); + fprintf(stderr, + "%s: server does not support the XF86VidMode extension.\n", + blurb()); + exit(1); + } + else + fprintf(stderr, "%s: XF86VidModeQueryExtension(dpy, ...) ==> %d, %d\n", + blurb(), event_number, error_number); + + if (!XF86VidModeQueryVersion(dpy, &major, &minor)) + { + fprintf(stderr, "%s: XF86VidModeQueryVersion(dpy, ...) ==> False\n", + blurb()); + fprintf(stderr, + "%s: server didn't report XF86VidMode version numbers?\n", + blurb()); + } + else + fprintf(stderr, "%s: XF86VidModeQueryVersion(dpy, ...) ==> %d, %d\n", + blurb(), major, minor); + + nscreens = screen_count (dpy); + + for (i = 0; i < nscreens; i++) + { + int result = 0; + int x = 0, y = 0, dot = 0; + XF86VidModeModeLine ml = { 0, }; + XErrorHandler old_handler; + + XSync (dpy, False); + error_handler_hit_p = False; + old_handler = XSetErrorHandler (ignore_all_errors_ehandler); + + result = XF86VidModeGetViewPort (dpy, i, &x, &y); + + XSync (dpy, False); + XSetErrorHandler (old_handler); + XSync (dpy, False); + + if (error_handler_hit_p) + { + fprintf(stderr, + "%s: XF86VidModeGetViewPort(dpy, %d, ...) ==> X error\n", + blurb(), i); + continue; + } + + if (! result) + fprintf(stderr, "%s: XF86VidModeGetViewPort(dpy, %d, ...) ==> %d\n", + blurb(), i, result); + + result = XF86VidModeGetModeLine (dpy, i, &dot, &ml); + if (! result) + fprintf(stderr, "%s: XF86VidModeGetModeLine(dpy, %d, ...) ==> %d\n", + blurb(), i, result); + + fprintf (stderr, "%s: screen %d: %dx%d; viewport: %dx%d+%d+%d\n", + blurb(), i, + DisplayWidth (dpy, i), DisplayHeight (dpy, i), + ml.hdisplay, ml.vdisplay, x, y + ); + + fprintf (stderr, + "%s: hsync start %d; end %d; total %d; skew %d;\n", + blurb(), + ml.hsyncstart, ml.hsyncend, ml.htotal, ml.hskew); + fprintf (stderr, + "%s: vsync start %d; end %d; total %d; flags 0x%04x;\n", + blurb(), + ml.vsyncstart, ml.vsyncend, ml.vtotal, ml.flags); + fprintf (stderr, "\n"); + } + XSync (dpy, False); + exit (0); +} |