Paranoia2/utils/p2vis/qvis.h

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2020-08-31 18:50:41 +02:00
/***
*
* Copyright (c) 1996-2002, Valve LLC. All rights reserved.
*
* This product contains software technology licensed from Id
* Software, Inc. ("Id Technology"). Id Technology (c) 1996 Id Software, Inc.
* All Rights Reserved.
*
****/
// vis.h
#include "cmdlib.h"
#include "mathlib.h"
#include "bspfile.h"
#include "stringlib.h"
#include "filesystem.h"
#include <windows.h>
#define DEFAULT_FASTVIS false
#define DEFAULT_TESTLEVEL 2
#define DEFAULT_NOSORT false
#define DEFAULT_FARPLANE 0
#define MAX_PORTALS MAX_MAP_PORTALS
#define VIS_EPSILON ON_EPSILON
typedef struct
{
vec3_t normal;
float dist;
} plane_t;
#define MAX_POINTS_ON_WINDING 64
#define MAX_POINTS_ON_STACK_WINDING 24
#define MAX_PORTALS_ON_LEAF 256
#define MAX_SEPERATORS MAX_POINTS_ON_WINDING
typedef struct
{
int numpoints;
vec3_t p[MAX_POINTS_ON_STACK_WINDING]; // variable sized
} winding_t;
typedef enum
{
stat_none = 0,
stat_working,
stat_done
} vstatus_t;
typedef struct
{
plane_t plane; // normal pointing into neighbor
vec3_t origin;
vec_t radius;
int leaf; // neighbor
winding_t *winding;
vstatus_t status;
byte *visbits;
byte *mightsee;
int nummightsee;
int numcansee;
} portal_t;
typedef struct leaf_s
{
int numportals;
portal_t *portals[MAX_PORTALS_ON_LEAF];
} leaf_t;
typedef struct pstack_s
{
byte mightsee[MAX_MAP_LEAFS/8]; // bit string
struct pstack_s *head;
struct pstack_s *next;
leaf_t *leaf;
portal_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;
plane_t seperators[2][MAX_SEPERATORS];
int numseperators[2];
} pstack_t;
typedef struct
{
byte *leafvis; // bit string
portal_t *base;
pstack_t pstack_head;
} threaddata_t;
extern int g_numportals;
extern int g_portalleafs;
extern portal_t *g_sorted_portals[MAX_MAP_PORTALS*2];
extern portal_t *g_portals;
extern leaf_t *g_leafs;
extern int c_portaltest, c_portalpass, c_portalcheck;
extern int c_portalskip, c_leafskip;
extern int c_vistest, c_mighttest;
extern int c_mightseeupdate;
extern int c_chains;
extern byte *vismap, *vismap_p, *vismap_end; // past visfile
extern byte *g_uncompressed;
extern int g_bitbytes;
extern int g_bitlongs;
extern vec_t g_farplane;
void LeafFlow( int leafnum );
void BasePortalVis( int threadnum );
void PortalFlow( int portalnum, int threadnum = -1 );
void PortalFlow( portal_t *p );
void CalcAmbientSounds( void );
//
// winding.c
//
winding_t *AllocWinding( int points );
void FreeWinding( winding_t *w );
winding_t *ChopWindingEpsilon( winding_t *in, pstack_t *stack, plane_t *split, vec_t epsilon );
void WindingPlane( winding_t *w, vec3_t normal, vec_t *dist );