From 59c8812099f33d56b43044f999ffe5df16adf5ff Mon Sep 17 00:00:00 2001
From: Adam Jackson <ajax@redhat.com>
Date: Mon, 8 Dec 2008 15:37:53 -0500
Subject: Add [GS]etOutputPrimary

---
 include/X11/extensions/Xrandr.h | 10 +++++++
 src/XrrOutput.c                 | 62 +++++++++++++++++++++++++++++++++++++++++
 2 files changed, 72 insertions(+)

diff --git a/include/X11/extensions/Xrandr.h b/include/X11/extensions/Xrandr.h
index 80d9d47..a411321 100644
--- a/include/X11/extensions/Xrandr.h
+++ b/include/X11/extensions/Xrandr.h
@@ -2,6 +2,7 @@
  * Copyright © 2000 Compaq Computer Corporation, Inc.
  * Copyright © 2002 Hewlett-Packard Company, Inc.
  * Copyright © 2006 Intel Corporation
+ * Copyright © 2008 Red Hat, Inc.
  *
  * Permission to use, copy, modify, distribute, and sell this software and its
  * documentation for any purpose is hereby granted without fee, provided that
@@ -440,6 +441,15 @@ XRRSetPanning (Display *dpy,
 	       RRCrtc crtc,
 	       XRRPanning *panning);
 
+void
+XRRSetOutputPrimary(Display *dpy,
+		    Window window,
+		    RROutput output);
+
+RROutput
+XRRGetOutputPrimary(Display *dpy,
+		    Window window);
+
 _XFUNCPROTOEND
 
 #endif /* _XRANDR_H_ */
diff --git a/src/XrrOutput.c b/src/XrrOutput.c
index 1fe03ae..bc35fd1 100644
--- a/src/XrrOutput.c
+++ b/src/XrrOutput.c
@@ -1,5 +1,6 @@
 /*
  * Copyright © 2006 Keith Packard
+ * Copyright © 2008 Red Hat, Inc.
  *
  * Permission to use, copy, modify, distribute, and sell this software and its
  * documentation for any purpose is hereby granted without fee, provided that
@@ -129,3 +130,64 @@ XRRFreeOutputInfo (XRROutputInfo *outputInfo)
 {
     Xfree (outputInfo);
 }
+
+static Bool
+_XRRHasOutputPrimary (int major, int minor)
+{
+    return major > 1 || (major == 1 && minor >= 3);
+}
+
+void
+XRRSetOutputPrimary(Display *dpy, Window window, RROutput output)
+{
+    XExtDisplayInfo	    *info = XRRFindDisplay(dpy);
+    xRRSetOutputPrimaryReq  *req;
+    int			    i;
+    int			    major_version, minor_version;
+
+    RRCheckExtension (dpy, info, 0);
+
+    if (!XRRQueryVersion (dpy, &major_version, &minor_version) || 
+	!_XRRHasOutputPrimary (major_version, minor_version))
+	return;
+
+    LockDisplay(dpy);
+    GetReq (RRSetOutputPrimary, req);
+    req->reqType       = info->codes->major_opcode;
+    req->randrReqType  = X_RRSetOutputPrimary;
+    req->window        = window;
+    req->output	       = output;
+
+    UnlockDisplay (dpy);
+    SyncHandle ();
+}
+
+RROutput
+XRRGetOutputPrimary(Display *dpy, Window window)
+{
+    XExtDisplayInfo	    *info = XRRFindDisplay(dpy);
+    xRRGetOutputPrimaryReq  *req;
+    xRRGetOutputPrimaryReply rep;
+    int			    i;
+    int			    major_version, minor_version;
+
+    RRCheckExtension (dpy, info, 0);
+
+    if (!XRRQueryVersion (dpy, &major_version, &minor_version) || 
+	!_XRRHasOutputPrimary (major_version, minor_version))
+	return None;
+
+    LockDisplay(dpy);
+    GetReq (RRSetOutputPrimary, req);
+    req->reqType	= info->codes->major_opcode;
+    req->randrReqType	= X_RRGetOutputProperty;
+    req->window		= window;
+
+    if (!_XReply (dpy, (xReply *) &rep, 0, xFalse))
+	rep.output = None;
+	
+    UnlockDisplay(dpy);
+    SyncHandle();
+
+    return rep.output;
+}
-- 
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