The original Quake 2 sources as originally released under the GPL license on December 21, 2001.

client/vid.h

@@ -0,0 +1,42 @@
+/*
+Copyright (C) 1997-2001 Id Software, Inc.
+
+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 the Free Software
+Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+
+*/
+// vid.h -- video driver defs
+
+typedef struct vrect_s
+{
+	int				x,y,width,height;
+} vrect_t;
+
+typedef struct
+{
+	int		width;		
+	int		height;
+} viddef_t;
+
+extern	viddef_t	viddef;				// global video state
+
+// Video module initialisation etc
+void	VID_Init (void);
+void	VID_Shutdown (void);
+void	VID_CheckChanges (void);
+
+void	VID_MenuInit( void );
+void	VID_MenuDraw( void );
+const char *VID_MenuKey( int );