118 lines
2.9 KiB
C
118 lines
2.9 KiB
C
//========= Copyright Valve Corporation, All rights reserved. ============//
|
|
//
|
|
// Purpose:
|
|
//
|
|
// $NoKeywords: $
|
|
//
|
|
//=============================================================================//
|
|
// vis.h
|
|
|
|
#include "bsplib.h"
|
|
#include "cmdlib.h"
|
|
#include "mathlib/mathlib.h"
|
|
|
|
#define MAX_PORTALS 65536
|
|
|
|
#define PORTALFILE "PRT1"
|
|
|
|
extern bool g_bUseRadius; // prototyping TF2, "radius vis" solution
|
|
extern double g_VisRadius; // the radius for the TF2 "radius vis"
|
|
|
|
struct plane_t {
|
|
Vector normal;
|
|
float dist;
|
|
};
|
|
|
|
#define MAX_POINTS_ON_WINDING 64
|
|
#define MAX_POINTS_ON_FIXED_WINDING 12
|
|
|
|
struct winding_t {
|
|
qboolean original; // don't free, it's part of the portal
|
|
int numpoints;
|
|
Vector points[MAX_POINTS_ON_FIXED_WINDING]; // variable sized
|
|
};
|
|
|
|
winding_t *NewWinding(int points);
|
|
void FreeWinding(winding_t *w);
|
|
winding_t *CopyWinding(winding_t *w);
|
|
|
|
typedef enum { stat_none, stat_working, stat_done } vstatus_t;
|
|
struct portal_t {
|
|
plane_t plane; // normal pointing into neighbor
|
|
int leaf; // neighbor
|
|
|
|
Vector 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
|
|
};
|
|
|
|
struct leaf_t {
|
|
CUtlVector<portal_t *> portals;
|
|
};
|
|
|
|
struct pstack_t {
|
|
byte mightsee[MAX_PORTALS / 8]; // bit string
|
|
pstack_t *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;
|
|
};
|
|
|
|
struct threaddata_t {
|
|
portal_t *base;
|
|
int c_chains;
|
|
pstack_t pstack_head;
|
|
};
|
|
|
|
extern int g_numportals;
|
|
extern int portalclusters;
|
|
|
|
extern portal_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 iThread, int portalnum);
|
|
void BetterPortalVis(int portalnum);
|
|
void PortalFlow(int iThread, int portalnum);
|
|
void WritePortalTrace(const char *source);
|
|
|
|
extern portal_t *sorted_portals[MAX_MAP_PORTALS * 2];
|
|
extern int g_TraceClusterStart, g_TraceClusterStop;
|
|
|
|
int CountBits(byte *bits, int numbits);
|
|
|
|
#define CheckBit(bitstring, bitNumber) \
|
|
((bitstring)[((bitNumber) >> 3)] & (1 << ((bitNumber)&7)))
|
|
#define SetBit(bitstring, bitNumber) \
|
|
((bitstring)[((bitNumber) >> 3)] |= (1 << ((bitNumber)&7)))
|
|
#define ClearBit(bitstring, bitNumber) \
|
|
((bitstring)[((bitNumber) >> 3)] &= ~(1 << ((bitNumber)&7)))
|