The Quake III Arena sources as originally released under the GPL license on August 20, 2005.

2012-01-31 13:41:34 -06:00 · 2012-01-31 13:41:34 -06:00 · dbe4ddb103
commit dbe4ddb103
1409 changed files with 806066 additions and 0 deletions
--- a/q3map/vis.h
+++ b/q3map/vis.h
@ -0,0 +1,162 @@
+/*
+===========================================================================
+Copyright (C) 1999-2005 Id Software, Inc.
+
+This file is part of Quake III Arena source code.
+
+Quake III Arena source code 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.
+
+Quake III Arena source code 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 Foobar; if not, write to the Free Software
+Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+===========================================================================
+*/
+// vis.h
+
+#include "cmdlib.h"
+#include "mathlib.h"
+#include "bspfile.h"
+
+#define	MAX_PORTALS	32768
+
+#define	PORTALFILE	"PRT1"
+
+#define	ON_EPSILON	0.1
+
+//#define MREDEBUG
+
+// seperator caching helps a bit
+#define SEPERATORCACHE
+
+// can't have more seperators than the max number of points on a winding
+#define MAX_SEPERATORS		64
+
+typedef struct
+{
+	vec3_t		normal;
+	float		dist;
+} plane_t;
+
+#define MAX_POINTS_ON_WINDING	64
+#define	MAX_POINTS_ON_FIXED_WINDING	12
+
+typedef struct
+{
+	int		numpoints;
+	vec3_t	points[MAX_POINTS_ON_FIXED_WINDING];			// variable sized
+} winding_t;
+
+winding_t	*NewWinding (int points);
+void		FreeWinding (winding_t *w);
+winding_t	*CopyWinding (winding_t *w);
+
+
+typedef struct passage_s
+{
+	struct passage_s	*next;
+	byte				cansee[1];	//all portals that can be seen through this passage
+} passage_t;
+
+typedef enum {stat_none, stat_working, stat_done} vstatus_t;
+typedef struct
+{
+	int			num;
+	qboolean	hint;	// true if this portal was created from a hint splitter
+	qboolean	removed;
+	plane_t		plane;	// normal pointing into neighbor
+	int			leaf;	// neighbor
+	
+	vec3_t		origin;	// for fast clip testing
+	float		radius;
+
+	winding_t	*winding;
+	vstatus_t	status;
+	byte		*portalfront;	// [portals], preliminary
+	byte		*portalflood;	// [portals], intermediate
+	byte		*portalvis;		// [portals], final
+
+	int			nummightsee;	// bit count on portalflood for sort
+	passage_t	*passages;		// there are just as many passages as there
+								// are portals in the leaf this portal leads to
+} vportal_t;
+
+#define	MAX_PORTALS_ON_LEAF		128
+typedef struct leaf_s
+{
+	int			numportals;
+	int			merged;
+	vportal_t	*portals[MAX_PORTALS_ON_LEAF];
+} leaf_t;
+
+	
+typedef struct pstack_s
+{
+	byte		mightsee[MAX_PORTALS/8];		// bit string
+	struct pstack_s	*next;
+	leaf_t		*leaf;
+	vportal_t	*portal;	// portal exiting
+	winding_t	*source;
+	winding_t	*pass;
+
+	winding_t	windings[3];	// source, pass, temp in any order
+	int			freewindings[3];
+
+	plane_t		portalplane;
+	int depth;
+#ifdef SEPERATORCACHE
+	plane_t seperators[2][MAX_SEPERATORS];
+	int numseperators[2];
+#endif
+} pstack_t;
+
+typedef struct
+{
+	vportal_t	*base;
+	int			c_chains;
+	pstack_t	pstack_head;
+} threaddata_t;
+
+
+
+extern	int			numportals;
+extern	int			portalclusters;
+
+extern	vportal_t	*portals;
+extern	leaf_t		*leafs;
+
+extern	int			c_portaltest, c_portalpass, c_portalcheck;
+extern	int			c_portalskip, c_leafskip;
+extern	int			c_vistest, c_mighttest;
+extern	int			c_chains;
+
+extern	byte	*vismap, *vismap_p, *vismap_end;	// past visfile
+
+extern	int			testlevel;
+
+extern	byte		*uncompressed;
+
+extern	int		leafbytes, leaflongs;
+extern	int		portalbytes, portallongs;
+
+
+void LeafFlow (int leafnum);
+
+
+void BasePortalVis(int portalnum);
+void BetterPortalVis(int portalnum);
+void PortalFlow(int portalnum);
+void PassagePortalFlow(int portalnum);
+void CreatePassages(int portalnum);
+void PassageFlow(int portalnum);
+
+extern	vportal_t	*sorted_portals[MAX_MAP_PORTALS*2];
+
+int CountBits (byte *bits, int numbits);