ftp://ftp.swin.edu.au/slackware/slackware-9.1/source/xap/xscreensaver/xscreensaver...

[xscreensaver] / driver / test-xinerama.c

diff --git a/driver/test-xinerama.c b/driver/test-xinerama.c
new file mode 100644 (file)
index 0000000..8bafbb0
--- /dev/null
+++ b/driver/test-xinerama.c
@@ -0,0 +1,112 @@
+/* test-xinerama.c --- playing with the Xinerama extension.
+ * xscreensaver, Copyright (c) 2003 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/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;
+}
+
+
+int
+main (int argc, char **argv)
+{
+  int event_number, error_number;
+  int major, minor;
+  int nscreens = 0;
+  XineramaScreenInfo *xsi;
+  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 (!XineramaQueryExtension(dpy, &event_number, &error_number))
+    {
+      fprintf(stderr, "%s: XineramaQueryExtension(dpy, ...) ==> False\n",
+             blurb());
+      fprintf(stderr, "%s: server does not support the Xinerama extension.\n",
+             blurb());
+      exit(1);
+    }
+  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());
+      fprintf(stderr, "%s: server says Xinerama is turned off.\n", blurb());
+      exit(1);
+    }
+  else
+    fprintf(stderr, "%s: XineramaIsActive(dpy) ==> True\n", blurb());
+
+  if (!XineramaQueryVersion(dpy, &major, &minor))
+    {
+      fprintf(stderr, "%s: XineramaQueryVersion(dpy, ...) ==> False\n",
+              blurb());
+      fprintf(stderr, "%s: server didn't report Xinerama version numbers?\n",
+             blurb());
+    }
+  else
+    fprintf(stderr, "%s: XineramaQueryVersion(dpy, ...) ==> %d, %d\n", blurb(),
+           major, minor);
+
+  xsi = XineramaQueryScreens (dpy, &nscreens);
+  fprintf(stderr, "%s: %d Xinerama screens\n", blurb(), nscreens);
+  
+  for (i = 0; i < nscreens; i++)
+    fprintf (stderr, "%s:   screen %d: %dx%d+%d+%d\n",
+             blurb(),
+             xsi[i].screen_number,
+             xsi[i].width, xsi[i].height,
+             xsi[i].x_org, xsi[i].y_org);
+  XFree (xsi);
+  XSync (dpy, False);
+  exit (0);
+}