http://packetstormsecurity.org/UNIX/admin/xscreensaver-4.16.tar.gz

[xscreensaver] / driver / test-vp.c

diff --git a/driver/test-vp.c b/driver/test-vp.c
new file mode 100644 (file)
index 0000000..2f11bc0
--- /dev/null
+++ b/driver/test-vp.c
@@ -0,0 +1,185 @@
+/* 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 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;
+      int x = 0, y = 0, dot = 0;
+      XF86VidModeModeLine ml = { 0, };
+
+      result = XF86VidModeGetViewPort (dpy, i, &x, &y);
+      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);
+}