hello world

2026-03-20 08:59:56 +01:00 · 2011-11-22 15:28:15 -06:00
commit fb1609f554
2155 changed files with 1017022 additions and 0 deletions
--- a/neo/d3xp/Pvs.h
+++ b/neo/d3xp/Pvs.h
@@ -0,0 +1,133 @@
+/*
+===========================================================================
+
+Doom 3 GPL Source Code
+Copyright (C) 1999-2011 id Software LLC, a ZeniMax Media company. 
+
+This file is part of the Doom 3 GPL Source Code (?Doom 3 Source Code?).  
+
+Doom 3 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 3 of the License, or
+(at your option) any later version.
+
+Doom 3 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 Doom 3 Source Code.  If not, see <http://www.gnu.org/licenses/>.
+
+In addition, the Doom 3 Source Code is also subject to certain additional terms. You should have received a copy of these additional terms immediately following the terms and conditions of the GNU General Public License which accompanied the Doom 3 Source Code.  If not, please request a copy in writing from id Software at the address below.
+
+If you have questions concerning this license or the applicable additional terms, you may contact in writing id Software LLC, c/o ZeniMax Media Inc., Suite 120, Rockville, Maryland 20850 USA.
+
+===========================================================================
+*/
+
+#ifndef __GAME_PVS_H__
+#define __GAME_PVS_H__
+
+/*
+===================================================================================
+
+	PVS
+
+	Note: mirrors and other special view portals are not taken into account
+
+===================================================================================
+*/
+
+
+typedef struct pvsHandle_s {
+	int					i;			// index to current pvs
+	unsigned int		h;			// handle for current pvs
+} pvsHandle_t;
+
+
+typedef struct pvsCurrent_s {
+	pvsHandle_t			handle;		// current pvs handle
+	byte *				pvs;		// current pvs bit string
+} pvsCurrent_t;
+
+#define MAX_CURRENT_PVS		8		// must be a power of 2
+
+typedef enum {
+	PVS_NORMAL				= 0,	// PVS through portals taking portal states into account
+	PVS_ALL_PORTALS_OPEN	= 1,	// PVS through portals assuming all portals are open
+	PVS_CONNECTED_AREAS		= 2		// PVS considering all topologically connected areas visible
+} pvsType_t;
+
+
+class idPVS {
+public:
+						idPVS( void );
+						~idPVS( void );
+						// setup for the current map
+	void				Init( void );
+	void				Shutdown( void );
+						// get the area(s) the source is in
+	int					GetPVSArea( const idVec3 &point ) const;		// returns the area number
+	int					GetPVSAreas( const idBounds &bounds, int *areas, int maxAreas ) const;	// returns number of areas
+						// setup current PVS for the source
+	pvsHandle_t			SetupCurrentPVS( const idVec3 &source, const pvsType_t type = PVS_NORMAL ) const;
+	pvsHandle_t			SetupCurrentPVS( const idBounds &source, const pvsType_t type = PVS_NORMAL ) const;
+	pvsHandle_t			SetupCurrentPVS( const int sourceArea, const pvsType_t type = PVS_NORMAL ) const;
+	pvsHandle_t			SetupCurrentPVS( const int *sourceAreas, const int numSourceAreas, const pvsType_t type = PVS_NORMAL ) const;
+	pvsHandle_t			MergeCurrentPVS( pvsHandle_t pvs1, pvsHandle_t pvs2 ) const;
+	void				FreeCurrentPVS( pvsHandle_t handle ) const;
+						// returns true if the target is within the current PVS
+	bool				InCurrentPVS( const pvsHandle_t handle, const idVec3 &target ) const;
+	bool				InCurrentPVS( const pvsHandle_t handle, const idBounds &target ) const;
+	bool				InCurrentPVS( const pvsHandle_t handle, const int targetArea ) const;
+	bool				InCurrentPVS( const pvsHandle_t handle, const int *targetAreas, int numTargetAreas ) const;
+						// draw all portals that are within the PVS of the source
+	void				DrawPVS( const idVec3 &source, const pvsType_t type = PVS_NORMAL ) const;
+	void				DrawPVS( const idBounds &source, const pvsType_t type = PVS_NORMAL ) const;
+						// visualize the PVS the handle points to
+	void				DrawCurrentPVS( const pvsHandle_t handle, const idVec3 &source ) const;
+
+#if ASYNC_WRITE_PVS
+	void				WritePVS( const pvsHandle_t handle, idBitMsg &msg );
+	void				ReadPVS( const pvsHandle_t handle, const idBitMsg &msg );
+#endif
+
+#ifdef _D3XP
+	bool				CheckAreasForPortalSky( const pvsHandle_t handle, const idVec3 &origin );
+#endif
+
+private:
+	int					numAreas;
+	int					numPortals;
+	bool *				connectedAreas;
+	int *				areaQueue;
+	byte *				areaPVS;
+						// current PVS for a specific source possibly taking portal states (open/closed) into account
+	mutable pvsCurrent_t currentPVS[MAX_CURRENT_PVS];
+						// used to create PVS
+	int					portalVisBytes;
+	int					portalVisLongs;
+	int					areaVisBytes;
+	int					areaVisLongs;
+	struct pvsPortal_s *pvsPortals;
+	struct pvsArea_s *	pvsAreas;
+
+private:
+	int					GetPortalCount( void ) const;
+	void				CreatePVSData( void );
+	void				DestroyPVSData( void );
+	void				CopyPortalPVSToMightSee( void ) const;
+	void				FloodFrontPortalPVS_r( struct pvsPortal_s *portal, int areaNum ) const;
+	void				FrontPortalPVS( void ) const;
+	struct pvsStack_s *	FloodPassagePVS_r( struct pvsPortal_s *source, const struct pvsPortal_s *portal, struct pvsStack_s *prevStack ) const;
+	void				PassagePVS( void ) const;
+	void				AddPassageBoundaries( const idWinding &source, const idWinding &pass, bool flipClip, idPlane *bounds, int &numBounds, int maxBounds ) const;
+	void				CreatePassages( void ) const;
+	void				DestroyPassages( void ) const;
+	int					AreaPVSFromPortalPVS( void ) const;
+	void				GetConnectedAreas( int srcArea, bool *connectedAreas ) const;
+	pvsHandle_t			AllocCurrentPVS( unsigned int h ) const;
+};
+
+#endif /* !__GAME_PVS_H__ */