From e36fbe4d8878a897b0e90fd8f29ad3a421b8d3a9 Mon Sep 17 00:00:00 2001
From: Jeff Teunissen <deek@d2dc.net>
Date: Sun, 9 Jan 2000 07:50:39 +0000
Subject: [PATCH] Added support for checking whether DGA/Vmode support is
 available at runtime. These files are not used yet!

---
 common/dga_check.c | 68 ++++++++++++++++++++++++++++++++++++++++++++++
 common/dga_check.h | 56 ++++++++++++++++++++++++++++++++++++++
 2 files changed, 124 insertions(+)
 create mode 100644 common/dga_check.c
 create mode 100644 common/dga_check.h

diff --git a/common/dga_check.c b/common/dga_check.c
new file mode 100644
index 0000000..ad939c9
--- /dev/null
+++ b/common/dga_check.c
@@ -0,0 +1,68 @@
+/*
+	dga_check.h
+	
+	Definitions for DGA support for XFree86
+	
+	Copyright (C) 2000 contributors of the QuakeForge project
+	Please see the file "AUTHORS" for a list of contributors
+
+	Author: Jeff Teunissen
+	Date:	09 Jan 2000
+	
+	This program is free software; you can redistribute it and/or
+	modify it under the terms of the GNU General Public License
+	as published by the Free Software Foundation; either version 2
+	of the License, or (at your option) any later version.
+
+	This program is distributed in the hope that it will be useful,
+	but WITHOUT ANY WARRANTY; without even the implied warranty of
+	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  
+
+	See the GNU General Public License for more details.
+
+	You should have received a copy of the GNU General Public License
+	along with this program; if not, write to:
+	
+	Free Software Foundation, Inc.
+	59 Temple Place - Suite 330
+	Boston, MA  02111-1307, USA.
+*/
+#ifdef HAS_DGA
+#include "dga_check.h"
+
+#include <X11/extensions/xf86dga.h>
+#include <X11/extensions/xf86vmode.h>
+
+/*
+	VID_CheckDGA
+	
+	Check for the presence of the XFree86-DGA X server extension
+*/
+int
+VID_CheckDGA ( Display *dpy, Window *win )
+{
+	int event_base, error_base = 0;
+	
+	XF86DGAQueryExtension ( dpy, event_base, error_base );
+	if ( event_base )
+		return true;
+	return false;
+}
+
+/*
+	VID_CheckVMode
+	
+	Check for the presence of the XFree86-VMode X server extension
+*/
+int
+VID_CheckVMode ( Display *dpy );
+{
+	int event_base, error_base = 0;
+	
+	XF86VidModeQueryExtension ( dpy, event_base, error_base );
+	if ( event_base )
+		return true;
+	return false;
+}
+
+#endif // HAS_DGA
diff --git a/common/dga_check.h b/common/dga_check.h
new file mode 100644
index 0000000..ecbf429
--- /dev/null
+++ b/common/dga_check.h
@@ -0,0 +1,56 @@
+/*
+	dga_check.h
+	
+	Definitions for DGA support for XFree86
+	
+	Copyright (C) 2000 contributors of the QuakeForge project
+	Please see the file "AUTHORS" for a list of contributors
+
+	Author: Jeff Teunissen
+	Date:	09 Jan 2000
+	
+	This program is free software; you can redistribute it and/or
+	modify it under the terms of the GNU General Public License
+	as published by the Free Software Foundation; either version 2
+	of the License, or (at your option) any later version.
+
+	This program is distributed in the hope that it will be useful,
+	but WITHOUT ANY WARRANTY; without even the implied warranty of
+	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  
+
+	See the GNU General Public License for more details.
+
+	You should have received a copy of the GNU General Public License
+	along with this program; if not, write to:
+	
+	Free Software Foundation, Inc.
+	59 Temple Place - Suite 330
+	Boston, MA  02111-1307, USA.
+*/
+
+#ifndef DGA_CHECK_H
+#define DGA_CHECK_H
+
+#include <config.h>
+
+#ifdef HAS_DGA
+#include <X11/extensions/xf86dga.h>
+#include <X11/extensions/xf86vmode.h>
+
+/*
+	VID_CheckDGA
+	
+	Check for the presence of the XFree86-DGA support in the X server
+*/
+int VID_CheckDGA ( Display *dpy, Window *win );
+
+/*
+	VID_CheckVMode
+	
+	Check for the presence of the XFree86-VMode X server extension
+*/
+int VID_CheckVMode ( Display* );
+
+#endif	// HAS_DGA
+
+#endif	// DGA_CHECK_H