ref: 761946b93cf45a3b9e47868a704fb165af760333
dir: /code/bspc/l_bsp_q2.c/
/*
===========================================================================
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
===========================================================================
*/
#include "l_cmd.h"
#include "l_math.h"
#include "l_mem.h"
#include "l_log.h"
#include "l_poly.h"
#include "../botlib/l_script.h"
#include "q2files.h"
#include "l_bsp_q2.h"
#include "l_bsp_ent.h"
#define q2_dmodel_t dmodel_t
#define q2_lump_t lump_t
#define q2_dheader_t dheader_t
#define q2_dmodel_t dmodel_t
#define q2_dvertex_t dvertex_t
#define q2_dplane_t dplane_t
#define q2_dnode_t dnode_t
#define q2_texinfo_t texinfo_t
#define q2_dedge_t dedge_t
#define q2_dface_t dface_t
#define q2_dleaf_t dleaf_t
#define q2_dbrushside_t dbrushside_t
#define q2_dbrush_t dbrush_t
#define q2_dvis_t dvis_t
#define q2_dareaportal_t dareaportal_t
#define q2_darea_t darea_t
#define q2_nummodels nummodels
#define q2_dmodels dmodels
#define q2_numleafs numleafs
#define q2_dleafs dleafs
#define q2_numplanes numplanes
#define q2_dplanes dplanes
#define q2_numvertexes numvertexes
#define q2_dvertexes dvertexes
#define q2_numnodes numnodes
#define q2_dnodes dnodes
#define q2_numtexinfo numtexinfo
#define q2_texinfo texinfo
#define q2_numfaces numfaces
#define q2_dfaces dfaces
#define q2_numedges numedges
#define q2_dedges dedges
#define q2_numleaffaces numleaffaces
#define q2_dleaffaces dleaffaces
#define q2_numleafbrushes numleafbrushes
#define q2_dleafbrushes dleafbrushes
#define q2_dsurfedges dsurfedges
#define q2_numbrushes numbrushes
#define q2_dbrushes dbrushes
#define q2_numbrushsides numbrushsides
#define q2_dbrushsides dbrushsides
#define q2_numareas numareas
#define q2_dareas dareas
#define q2_numareaportals numareaportals
#define q2_dareaportals dareaportals
void GetLeafNums (void);
//=============================================================================
int nummodels;
dmodel_t *dmodels;//[MAX_MAP_MODELS];
int visdatasize;
byte *dvisdata;//[MAX_MAP_VISIBILITY];
dvis_t *dvis;// = (dvis_t *)dvisdata;
int lightdatasize;
byte *dlightdata;//[MAX_MAP_LIGHTING];
int entdatasize;
char *dentdata;//[MAX_MAP_ENTSTRING];
int numleafs;
dleaf_t *dleafs;//[MAX_MAP_LEAFS];
int numplanes;
dplane_t *dplanes;//[MAX_MAP_PLANES];
int numvertexes;
dvertex_t *dvertexes;//[MAX_MAP_VERTS];
int numnodes;
dnode_t *dnodes;//[MAX_MAP_NODES];
//NOTE: must be static for q2 .map to q2 .bsp
int numtexinfo;
texinfo_t texinfo[MAX_MAP_TEXINFO];
int numfaces;
dface_t *dfaces;//[MAX_MAP_FACES];
int numedges;
dedge_t *dedges;//[MAX_MAP_EDGES];
int numleaffaces;
unsigned short *dleaffaces;//[MAX_MAP_LEAFFACES];
int numleafbrushes;
unsigned short *dleafbrushes;//[MAX_MAP_LEAFBRUSHES];
int numsurfedges;
int *dsurfedges;//[MAX_MAP_SURFEDGES];
int numbrushes;
dbrush_t *dbrushes;//[MAX_MAP_BRUSHES];
int numbrushsides;
dbrushside_t *dbrushsides;//[MAX_MAP_BRUSHSIDES];
int numareas;
darea_t *dareas;//[MAX_MAP_AREAS];
int numareaportals;
dareaportal_t *dareaportals;//[MAX_MAP_AREAPORTALS];
#define MAX_MAP_DPOP 256
byte dpop[MAX_MAP_DPOP];
//
char brushsidetextured[MAX_MAP_BRUSHSIDES];
//#ifdef ME
int bspallocated = false;
int allocatedbspmem = 0;
void Q2_AllocMaxBSP(void)
{
//models
nummodels = 0;
dmodels = (dmodel_t *) GetClearedMemory(MAX_MAP_MODELS * sizeof(dmodel_t));
allocatedbspmem += MAX_MAP_MODELS * sizeof(dmodel_t);
//vis data
visdatasize = 0;
dvisdata = (byte *) GetClearedMemory(MAX_MAP_VISIBILITY * sizeof(byte));
dvis = (dvis_t *) dvisdata;
allocatedbspmem += MAX_MAP_VISIBILITY * sizeof(byte);
//light data
lightdatasize = 0;
dlightdata = (byte *) GetClearedMemory(MAX_MAP_LIGHTING * sizeof(byte));
allocatedbspmem += MAX_MAP_LIGHTING * sizeof(byte);
//entity data
entdatasize = 0;
dentdata = (char *) GetClearedMemory(MAX_MAP_ENTSTRING * sizeof(char));
allocatedbspmem += MAX_MAP_ENTSTRING * sizeof(char);
//leafs
numleafs = 0;
dleafs = (dleaf_t *) GetClearedMemory(MAX_MAP_LEAFS * sizeof(dleaf_t));
allocatedbspmem += MAX_MAP_LEAFS * sizeof(dleaf_t);
//planes
numplanes = 0;
dplanes = (dplane_t *) GetClearedMemory(MAX_MAP_PLANES * sizeof(dplane_t));
allocatedbspmem += MAX_MAP_PLANES * sizeof(dplane_t);
//vertexes
numvertexes = 0;
dvertexes = (dvertex_t *) GetClearedMemory(MAX_MAP_VERTS * sizeof(dvertex_t));
allocatedbspmem += MAX_MAP_VERTS * sizeof(dvertex_t);
//nodes
numnodes = 0;
dnodes = (dnode_t *) GetClearedMemory(MAX_MAP_NODES * sizeof(dnode_t));
allocatedbspmem += MAX_MAP_NODES * sizeof(dnode_t);
/*
//texture info
numtexinfo = 0;
texinfo = (texinfo_t *) GetClearedMemory(MAX_MAP_TEXINFO * sizeof(texinfo_t));
allocatedbspmem += MAX_MAP_TEXINFO * sizeof(texinfo_t);
//*/
//faces
numfaces = 0;
dfaces = (dface_t *) GetClearedMemory(MAX_MAP_FACES * sizeof(dface_t));
allocatedbspmem += MAX_MAP_FACES * sizeof(dface_t);
//edges
numedges = 0;
dedges = (dedge_t *) GetClearedMemory(MAX_MAP_EDGES * sizeof(dedge_t));
allocatedbspmem += MAX_MAP_EDGES * sizeof(dedge_t);
//leaf faces
numleaffaces = 0;
dleaffaces = (unsigned short *) GetClearedMemory(MAX_MAP_LEAFFACES * sizeof(unsigned short));
allocatedbspmem += MAX_MAP_LEAFFACES * sizeof(unsigned short);
//leaf brushes
numleafbrushes = 0;
dleafbrushes = (unsigned short *) GetClearedMemory(MAX_MAP_LEAFBRUSHES * sizeof(unsigned short));
allocatedbspmem += MAX_MAP_LEAFBRUSHES * sizeof(unsigned short);
//surface edges
numsurfedges = 0;
dsurfedges = (int *) GetClearedMemory(MAX_MAP_SURFEDGES * sizeof(int));
allocatedbspmem += MAX_MAP_SURFEDGES * sizeof(int);
//brushes
numbrushes = 0;
dbrushes = (dbrush_t *) GetClearedMemory(MAX_MAP_BRUSHES * sizeof(dbrush_t));
allocatedbspmem += MAX_MAP_BRUSHES * sizeof(dbrush_t);
//brushsides
numbrushsides = 0;
dbrushsides = (dbrushside_t *) GetClearedMemory(MAX_MAP_BRUSHSIDES * sizeof(dbrushside_t));
allocatedbspmem += MAX_MAP_BRUSHSIDES * sizeof(dbrushside_t);
//areas
numareas = 0;
dareas = (darea_t *) GetClearedMemory(MAX_MAP_AREAS * sizeof(darea_t));
allocatedbspmem += MAX_MAP_AREAS * sizeof(darea_t);
//area portals
numareaportals = 0;
dareaportals = (dareaportal_t *) GetClearedMemory(MAX_MAP_AREAPORTALS * sizeof(dareaportal_t));
allocatedbspmem += MAX_MAP_AREAPORTALS * sizeof(dareaportal_t);
//print allocated memory
Log_Print("allocated ");
PrintMemorySize(allocatedbspmem);
Log_Print(" of BSP memory\n");
} //end of the function Q2_AllocMaxBSP
void Q2_FreeMaxBSP(void)
{
//models
nummodels = 0;
FreeMemory(dmodels);
dmodels = NULL;
//vis data
visdatasize = 0;
FreeMemory(dvisdata);
dvisdata = NULL;
dvis = NULL;
//light data
lightdatasize = 0;
FreeMemory(dlightdata);
dlightdata = NULL;
//entity data
entdatasize = 0;
FreeMemory(dentdata);
dentdata = NULL;
//leafs
numleafs = 0;
FreeMemory(dleafs);
dleafs = NULL;
//planes
numplanes = 0;
FreeMemory(dplanes);
dplanes = NULL;
//vertexes
numvertexes = 0;
FreeMemory(dvertexes);
dvertexes = NULL;
//nodes
numnodes = 0;
FreeMemory(dnodes);
dnodes = NULL;
/*
//texture info
numtexinfo = 0;
FreeMemory(texinfo);
texinfo = NULL;
//*/
//faces
numfaces = 0;
FreeMemory(dfaces);
dfaces = NULL;
//edges
numedges = 0;
FreeMemory(dedges);
dedges = NULL;
//leaf faces
numleaffaces = 0;
FreeMemory(dleaffaces);
dleaffaces = NULL;
//leaf brushes
numleafbrushes = 0;
FreeMemory(dleafbrushes);
dleafbrushes = NULL;
//surface edges
numsurfedges = 0;
FreeMemory(dsurfedges);
dsurfedges = NULL;
//brushes
numbrushes = 0;
FreeMemory(dbrushes);
dbrushes = NULL;
//brushsides
numbrushsides = 0;
FreeMemory(dbrushsides);
dbrushsides = NULL;
//areas
numareas = 0;
FreeMemory(dareas);
dareas = NULL;
//area portals
numareaportals = 0;
FreeMemory(dareaportals);
dareaportals = NULL;
//
Log_Print("freed ");
PrintMemorySize(allocatedbspmem);
Log_Print(" of BSP memory\n");
allocatedbspmem = 0;
} //end of the function Q2_FreeMaxBSP
#define WCONVEX_EPSILON 0.5
int InsideWinding(winding_t *w, vec3_t point, int planenum)
{
int i;
float dist;
vec_t *v1, *v2;
vec3_t normal, edgevec;
dplane_t *plane;
for (i = 1; i <= w->numpoints; i++)
{
v1 = w->p[i % w->numpoints];
v2 = w->p[(i + 1) % w->numpoints];
VectorSubtract(v2, v1, edgevec);
plane = &dplanes[planenum];
CrossProduct(plane->normal, edgevec, normal);
VectorNormalize(normal);
dist = DotProduct(normal, v1);
//
if (DotProduct(normal, point) - dist > WCONVEX_EPSILON) return false;
} //end for
return true;
} //end of the function InsideWinding
int InsideFace(dface_t *face, vec3_t point)
{
int i, edgenum, side;
float dist;
vec_t *v1, *v2;
vec3_t normal, edgevec;
dplane_t *plane;
for (i = 0; i < face->numedges; i++)
{
//get the first and second vertex of the edge
edgenum = dsurfedges[face->firstedge + i];
side = edgenum < 0;
v1 = dvertexes[dedges[abs(edgenum)].v[side]].point;
v2 = dvertexes[dedges[abs(edgenum)].v[!side]].point;
//create a plane through the edge vector, orthogonal to the face plane
//and with the normal vector pointing out of the face
VectorSubtract(v1, v2, edgevec);
plane = &dplanes[face->planenum];
CrossProduct(plane->normal, edgevec, normal);
VectorNormalize(normal);
dist = DotProduct(normal, v1);
//
if (DotProduct(normal, point) - dist > WCONVEX_EPSILON) return false;
} //end for
return true;
} //end of the function InsideFace
//===========================================================================
// returns the amount the face and the winding overlap
//
// Parameter: -
// Returns: -
// Changes Globals: -
//===========================================================================
float Q2_FaceOnWinding(q2_dface_t *face, winding_t *winding)
{
int i, edgenum, side;
float dist, area;
q2_dplane_t plane;
vec_t *v1, *v2;
vec3_t normal, edgevec;
winding_t *w;
//
w = CopyWinding(winding);
memcpy(&plane, &q2_dplanes[face->planenum], sizeof(q2_dplane_t));
//check on which side of the plane the face is
if (face->side)
{
VectorNegate(plane.normal, plane.normal);
plane.dist = -plane.dist;
} //end if
for (i = 0; i < face->numedges && w; i++)
{
//get the first and second vertex of the edge
edgenum = q2_dsurfedges[face->firstedge + i];
side = edgenum > 0;
//if the face plane is flipped
v1 = q2_dvertexes[q2_dedges[abs(edgenum)].v[side]].point;
v2 = q2_dvertexes[q2_dedges[abs(edgenum)].v[!side]].point;
//create a plane through the edge vector, orthogonal to the face plane
//and with the normal vector pointing inward
VectorSubtract(v1, v2, edgevec);
CrossProduct(edgevec, plane.normal, normal);
VectorNormalize(normal);
dist = DotProduct(normal, v1);
//
ChopWindingInPlace(&w, normal, dist, -0.1); //CLIP_EPSILON
} //end for
if (w)
{
area = WindingArea(w);
FreeWinding(w);
return area;
} //end if
return 0;
} //end of the function Q2_FaceOnWinding
//===========================================================================
// creates a winding for the given brush side on the given brush
//
// Parameter: -
// Returns: -
// Changes Globals: -
//===========================================================================
winding_t *Q2_BrushSideWinding(dbrush_t *brush, dbrushside_t *baseside)
{
int i;
dplane_t *baseplane, *plane;
winding_t *w;
dbrushside_t *side;
//create a winding for the brush side with the given planenumber
baseplane = &dplanes[baseside->planenum];
w = BaseWindingForPlane(baseplane->normal, baseplane->dist);
for (i = 0; i < brush->numsides && w; i++)
{
side = &dbrushsides[brush->firstside + i];
//don't chop with the base plane
if (side->planenum == baseside->planenum) continue;
//also don't use planes that are almost equal
plane = &dplanes[side->planenum];
if (DotProduct(baseplane->normal, plane->normal) > 0.999
&& fabs(baseplane->dist - plane->dist) < 0.01) continue;
//
plane = &dplanes[side->planenum^1];
ChopWindingInPlace(&w, plane->normal, plane->dist, -0.1); //CLIP_EPSILON);
} //end for
return w;
} //end of the function Q2_BrushSideWinding
//===========================================================================
//
// Parameter: -
// Returns: -
// Changes Globals: -
//===========================================================================
int Q2_HintSkipBrush(dbrush_t *brush)
{
int j;
dbrushside_t *brushside;
for (j = 0; j < brush->numsides; j++)
{
brushside = &dbrushsides[brush->firstside + j];
if (brushside->texinfo > 0)
{
if (texinfo[brushside->texinfo].flags & (SURF_SKIP|SURF_HINT))
{
return true;
} //end if
} //end if
} //end for
return false;
} //end of the function Q2_HintSkipBrush
//===========================================================================
// fix screwed brush texture references
//
// Parameter: -
// Returns: -
// Changes Globals: -
//===========================================================================
qboolean WindingIsTiny(winding_t *w);
void Q2_FixTextureReferences(void)
{
int i, j, k, we;
dbrushside_t *brushside;
dbrush_t *brush;
dface_t *face;
winding_t *w;
memset(brushsidetextured, false, MAX_MAP_BRUSHSIDES);
//go over all the brushes
for (i = 0; i < numbrushes; i++)
{
brush = &dbrushes[i];
//hint brushes are not textured
if (Q2_HintSkipBrush(brush)) continue;
//go over all the sides of the brush
for (j = 0; j < brush->numsides; j++)
{
brushside = &dbrushsides[brush->firstside + j];
//
w = Q2_BrushSideWinding(brush, brushside);
if (!w)
{
brushsidetextured[brush->firstside + j] = true;
continue;
} //end if
else
{
//RemoveEqualPoints(w, 0.2);
if (WindingIsTiny(w))
{
FreeWinding(w);
brushsidetextured[brush->firstside + j] = true;
continue;
} //end if
else
{
we = WindingError(w);
if (we == WE_NOTENOUGHPOINTS
|| we == WE_SMALLAREA
|| we == WE_POINTBOGUSRANGE
// || we == WE_NONCONVEX
)
{
FreeWinding(w);
brushsidetextured[brush->firstside + j] = true;
continue;
} //end if
} //end else
} //end else
if (WindingArea(w) < 20)
{
brushsidetextured[brush->firstside + j] = true;
} //end if
//find a face for texturing this brush
for (k = 0; k < numfaces; k++)
{
face = &dfaces[k];
//if the face is in the same plane as the brush side
if ((face->planenum&~1) != (brushside->planenum&~1)) continue;
//if the face is partly or totally on the brush side
if (Q2_FaceOnWinding(face, w))
{
brushside->texinfo = face->texinfo;
brushsidetextured[brush->firstside + j] = true;
break;
} //end if
} //end for
FreeWinding(w);
} //end for
} //end for
} //end of the function Q2_FixTextureReferences*/
//#endif //ME
/*
===============
CompressVis
===============
*/
int Q2_CompressVis (byte *vis, byte *dest)
{
int j;
int rep;
int visrow;
byte *dest_p;
dest_p = dest;
// visrow = (r_numvisleafs + 7)>>3;
visrow = (dvis->numclusters + 7)>>3;
for (j=0 ; j<visrow ; j++)
{
*dest_p++ = vis[j];
if (vis[j])
continue;
rep = 1;
for ( j++; j<visrow ; j++)
if (vis[j] || rep == 255)
break;
else
rep++;
*dest_p++ = rep;
j--;
}
return dest_p - dest;
}
/*
===================
DecompressVis
===================
*/
void Q2_DecompressVis (byte *in, byte *decompressed)
{
int c;
byte *out;
int row;
// row = (r_numvisleafs+7)>>3;
row = (dvis->numclusters+7)>>3;
out = decompressed;
do
{
if (*in)
{
*out++ = *in++;
continue;
}
c = in[1];
if (!c)
Error ("DecompressVis: 0 repeat");
in += 2;
while (c)
{
*out++ = 0;
c--;
}
} while (out - decompressed < row);
}
//=============================================================================
/*
=============
SwapBSPFile
Byte swaps all data in a bsp file.
=============
*/
void Q2_SwapBSPFile (qboolean todisk)
{
int i, j;
dmodel_t *d;
// models
for (i=0 ; i<nummodels ; i++)
{
d = &dmodels[i];
d->firstface = LittleLong (d->firstface);
d->numfaces = LittleLong (d->numfaces);
d->headnode = LittleLong (d->headnode);
for (j=0 ; j<3 ; j++)
{
d->mins[j] = LittleFloat(d->mins[j]);
d->maxs[j] = LittleFloat(d->maxs[j]);
d->origin[j] = LittleFloat(d->origin[j]);
}
}
//
// vertexes
//
for (i=0 ; i<numvertexes ; i++)
{
for (j=0 ; j<3 ; j++)
dvertexes[i].point[j] = LittleFloat (dvertexes[i].point[j]);
}
//
// planes
//
for (i=0 ; i<numplanes ; i++)
{
for (j=0 ; j<3 ; j++)
dplanes[i].normal[j] = LittleFloat (dplanes[i].normal[j]);
dplanes[i].dist = LittleFloat (dplanes[i].dist);
dplanes[i].type = LittleLong (dplanes[i].type);
}
//
// texinfos
//
for (i=0 ; i<numtexinfo ; i++)
{
for (j=0 ; j<8 ; j++)
texinfo[i].vecs[0][j] = LittleFloat (texinfo[i].vecs[0][j]);
texinfo[i].flags = LittleLong (texinfo[i].flags);
texinfo[i].value = LittleLong (texinfo[i].value);
texinfo[i].nexttexinfo = LittleLong (texinfo[i].nexttexinfo);
}
//
// faces
//
for (i=0 ; i<numfaces ; i++)
{
dfaces[i].texinfo = LittleShort (dfaces[i].texinfo);
dfaces[i].planenum = LittleShort (dfaces[i].planenum);
dfaces[i].side = LittleShort (dfaces[i].side);
dfaces[i].lightofs = LittleLong (dfaces[i].lightofs);
dfaces[i].firstedge = LittleLong (dfaces[i].firstedge);
dfaces[i].numedges = LittleShort (dfaces[i].numedges);
}
//
// nodes
//
for (i=0 ; i<numnodes ; i++)
{
dnodes[i].planenum = LittleLong (dnodes[i].planenum);
for (j=0 ; j<3 ; j++)
{
dnodes[i].mins[j] = LittleShort (dnodes[i].mins[j]);
dnodes[i].maxs[j] = LittleShort (dnodes[i].maxs[j]);
}
dnodes[i].children[0] = LittleLong (dnodes[i].children[0]);
dnodes[i].children[1] = LittleLong (dnodes[i].children[1]);
dnodes[i].firstface = LittleShort (dnodes[i].firstface);
dnodes[i].numfaces = LittleShort (dnodes[i].numfaces);
}
//
// leafs
//
for (i=0 ; i<numleafs ; i++)
{
dleafs[i].contents = LittleLong (dleafs[i].contents);
dleafs[i].cluster = LittleShort (dleafs[i].cluster);
dleafs[i].area = LittleShort (dleafs[i].area);
for (j=0 ; j<3 ; j++)
{
dleafs[i].mins[j] = LittleShort (dleafs[i].mins[j]);
dleafs[i].maxs[j] = LittleShort (dleafs[i].maxs[j]);
}
dleafs[i].firstleafface = LittleShort (dleafs[i].firstleafface);
dleafs[i].numleaffaces = LittleShort (dleafs[i].numleaffaces);
dleafs[i].firstleafbrush = LittleShort (dleafs[i].firstleafbrush);
dleafs[i].numleafbrushes = LittleShort (dleafs[i].numleafbrushes);
}
//
// leaffaces
//
for (i=0 ; i<numleaffaces ; i++)
dleaffaces[i] = LittleShort (dleaffaces[i]);
//
// leafbrushes
//
for (i=0 ; i<numleafbrushes ; i++)
dleafbrushes[i] = LittleShort (dleafbrushes[i]);
//
// surfedges
//
for (i=0 ; i<numsurfedges ; i++)
dsurfedges[i] = LittleLong (dsurfedges[i]);
//
// edges
//
for (i=0 ; i<numedges ; i++)
{
dedges[i].v[0] = LittleShort (dedges[i].v[0]);
dedges[i].v[1] = LittleShort (dedges[i].v[1]);
}
//
// brushes
//
for (i=0 ; i<numbrushes ; i++)
{
dbrushes[i].firstside = LittleLong (dbrushes[i].firstside);
dbrushes[i].numsides = LittleLong (dbrushes[i].numsides);
dbrushes[i].contents = LittleLong (dbrushes[i].contents);
}
//
// areas
//
for (i=0 ; i<numareas ; i++)
{
dareas[i].numareaportals = LittleLong (dareas[i].numareaportals);
dareas[i].firstareaportal = LittleLong (dareas[i].firstareaportal);
}
//
// areasportals
//
for (i=0 ; i<numareaportals ; i++)
{
dareaportals[i].portalnum = LittleLong (dareaportals[i].portalnum);
dareaportals[i].otherarea = LittleLong (dareaportals[i].otherarea);
}
//
// brushsides
//
for (i=0 ; i<numbrushsides ; i++)
{
dbrushsides[i].planenum = LittleShort (dbrushsides[i].planenum);
dbrushsides[i].texinfo = LittleShort (dbrushsides[i].texinfo);
}
//
// visibility
//
if (todisk)
j = dvis->numclusters;
else
j = LittleLong(dvis->numclusters);
dvis->numclusters = LittleLong (dvis->numclusters);
for (i=0 ; i<j ; i++)
{
dvis->bitofs[i][0] = LittleLong (dvis->bitofs[i][0]);
dvis->bitofs[i][1] = LittleLong (dvis->bitofs[i][1]);
}
} //end of the function Q2_SwapBSPFile
dheader_t *header;
int Q2_CopyLump (int lump, void *dest, int size, int maxsize)
{
int length, ofs;
length = header->lumps[lump].filelen;
ofs = header->lumps[lump].fileofs;
if (length % size)
Error ("LoadBSPFile: odd lump size");
if ((length/size) > maxsize)
Error ("Q2_LoadBSPFile: exceeded max size for lump %d size %d > maxsize %d\n", lump, (length/size), maxsize);
memcpy (dest, (byte *)header + ofs, length);
return length / size;
} //end of the function Q2_CopyLump
/*
=============
LoadBSPFile
=============
*/
void Q2_LoadBSPFile(char *filename, int offset, int length)
{
int i;
//
// load the file header
//
LoadFile (filename, (void **)&header, offset, length);
// swap the header
for (i=0 ; i< sizeof(dheader_t)/4 ; i++)
((int *)header)[i] = LittleLong ( ((int *)header)[i]);
if (header->ident != IDBSPHEADER)
Error ("%s is not a IBSP file", filename);
if (header->version != BSPVERSION)
Error ("%s is version %i, not %i", filename, header->version, BSPVERSION);
nummodels = Q2_CopyLump (LUMP_MODELS, dmodels, sizeof(dmodel_t), MAX_MAP_MODELS);
numvertexes = Q2_CopyLump (LUMP_VERTEXES, dvertexes, sizeof(dvertex_t), MAX_MAP_VERTS);
numplanes = Q2_CopyLump (LUMP_PLANES, dplanes, sizeof(dplane_t), MAX_MAP_PLANES);
numleafs = Q2_CopyLump (LUMP_LEAFS, dleafs, sizeof(dleaf_t), MAX_MAP_LEAFS);
numnodes = Q2_CopyLump (LUMP_NODES, dnodes, sizeof(dnode_t), MAX_MAP_NODES);
numtexinfo = Q2_CopyLump (LUMP_TEXINFO, texinfo, sizeof(texinfo_t), MAX_MAP_TEXINFO);
numfaces = Q2_CopyLump (LUMP_FACES, dfaces, sizeof(dface_t), MAX_MAP_FACES);
numleaffaces = Q2_CopyLump (LUMP_LEAFFACES, dleaffaces, sizeof(dleaffaces[0]), MAX_MAP_LEAFFACES);
numleafbrushes = Q2_CopyLump (LUMP_LEAFBRUSHES, dleafbrushes, sizeof(dleafbrushes[0]), MAX_MAP_LEAFBRUSHES);
numsurfedges = Q2_CopyLump (LUMP_SURFEDGES, dsurfedges, sizeof(dsurfedges[0]), MAX_MAP_SURFEDGES);
numedges = Q2_CopyLump (LUMP_EDGES, dedges, sizeof(dedge_t), MAX_MAP_EDGES);
numbrushes = Q2_CopyLump (LUMP_BRUSHES, dbrushes, sizeof(dbrush_t), MAX_MAP_BRUSHES);
numbrushsides = Q2_CopyLump (LUMP_BRUSHSIDES, dbrushsides, sizeof(dbrushside_t), MAX_MAP_BRUSHSIDES);
numareas = Q2_CopyLump (LUMP_AREAS, dareas, sizeof(darea_t), MAX_MAP_AREAS);
numareaportals = Q2_CopyLump (LUMP_AREAPORTALS, dareaportals, sizeof(dareaportal_t), MAX_MAP_AREAPORTALS);
visdatasize = Q2_CopyLump (LUMP_VISIBILITY, dvisdata, 1, MAX_MAP_VISIBILITY);
lightdatasize = Q2_CopyLump (LUMP_LIGHTING, dlightdata, 1, MAX_MAP_LIGHTING);
entdatasize = Q2_CopyLump (LUMP_ENTITIES, dentdata, 1, MAX_MAP_ENTSTRING);
Q2_CopyLump (LUMP_POP, dpop, 1, MAX_MAP_DPOP);
FreeMemory(header); // everything has been copied out
//
// swap everything
//
Q2_SwapBSPFile (false);
Q2_FixTextureReferences();
} //end of the function Q2_LoadBSPFile
/*
=============
LoadBSPFileTexinfo
Only loads the texinfo lump, so qdata can scan for textures
=============
*/
void Q2_LoadBSPFileTexinfo (char *filename)
{
int i;
FILE *f;
int length, ofs;
header = GetMemory(sizeof(dheader_t));
f = fopen (filename, "rb");
fread (header, sizeof(dheader_t), 1, f);
// swap the header
for (i=0 ; i< sizeof(dheader_t)/4 ; i++)
((int *)header)[i] = LittleLong ( ((int *)header)[i]);
if (header->ident != IDBSPHEADER)
Error ("%s is not a IBSP file", filename);
if (header->version != BSPVERSION)
Error ("%s is version %i, not %i", filename, header->version, BSPVERSION);
length = header->lumps[LUMP_TEXINFO].filelen;
ofs = header->lumps[LUMP_TEXINFO].fileofs;
fseek (f, ofs, SEEK_SET);
fread (texinfo, length, 1, f);
fclose (f);
numtexinfo = length / sizeof(texinfo_t);
FreeMemory(header); // everything has been copied out
Q2_SwapBSPFile (false);
} //end of the function Q2_LoadBSPFileTexinfo
//============================================================================
FILE *wadfile;
dheader_t outheader;
void Q2_AddLump (int lumpnum, void *data, int len)
{
lump_t *lump;
lump = &header->lumps[lumpnum];
lump->fileofs = LittleLong( ftell(wadfile) );
lump->filelen = LittleLong(len);
SafeWrite (wadfile, data, (len+3)&~3);
} //end of the function Q2_AddLump
/*
=============
WriteBSPFile
Swaps the bsp file in place, so it should not be referenced again
=============
*/
void Q2_WriteBSPFile (char *filename)
{
header = &outheader;
memset (header, 0, sizeof(dheader_t));
Q2_SwapBSPFile (true);
header->ident = LittleLong (IDBSPHEADER);
header->version = LittleLong (BSPVERSION);
wadfile = SafeOpenWrite (filename);
SafeWrite (wadfile, header, sizeof(dheader_t)); // overwritten later
Q2_AddLump (LUMP_PLANES, dplanes, numplanes*sizeof(dplane_t));
Q2_AddLump (LUMP_LEAFS, dleafs, numleafs*sizeof(dleaf_t));
Q2_AddLump (LUMP_VERTEXES, dvertexes, numvertexes*sizeof(dvertex_t));
Q2_AddLump (LUMP_NODES, dnodes, numnodes*sizeof(dnode_t));
Q2_AddLump (LUMP_TEXINFO, texinfo, numtexinfo*sizeof(texinfo_t));
Q2_AddLump (LUMP_FACES, dfaces, numfaces*sizeof(dface_t));
Q2_AddLump (LUMP_BRUSHES, dbrushes, numbrushes*sizeof(dbrush_t));
Q2_AddLump (LUMP_BRUSHSIDES, dbrushsides, numbrushsides*sizeof(dbrushside_t));
Q2_AddLump (LUMP_LEAFFACES, dleaffaces, numleaffaces*sizeof(dleaffaces[0]));
Q2_AddLump (LUMP_LEAFBRUSHES, dleafbrushes, numleafbrushes*sizeof(dleafbrushes[0]));
Q2_AddLump (LUMP_SURFEDGES, dsurfedges, numsurfedges*sizeof(dsurfedges[0]));
Q2_AddLump (LUMP_EDGES, dedges, numedges*sizeof(dedge_t));
Q2_AddLump (LUMP_MODELS, dmodels, nummodels*sizeof(dmodel_t));
Q2_AddLump (LUMP_AREAS, dareas, numareas*sizeof(darea_t));
Q2_AddLump (LUMP_AREAPORTALS, dareaportals, numareaportals*sizeof(dareaportal_t));
Q2_AddLump (LUMP_LIGHTING, dlightdata, lightdatasize);
Q2_AddLump (LUMP_VISIBILITY, dvisdata, visdatasize);
Q2_AddLump (LUMP_ENTITIES, dentdata, entdatasize);
Q2_AddLump (LUMP_POP, dpop, sizeof(dpop));
fseek (wadfile, 0, SEEK_SET);
SafeWrite (wadfile, header, sizeof(dheader_t));
fclose (wadfile);
} //end of the function Q2_WriteBSPFile
//============================================================================
/*
=============
PrintBSPFileSizes
Dumps info about current file
=============
*/
void Q2_PrintBSPFileSizes (void)
{
if (!num_entities)
Q2_ParseEntities();
printf ("%6i models %7i\n"
,nummodels, (int)(nummodels*sizeof(dmodel_t)));
printf ("%6i brushes %7i\n"
,numbrushes, (int)(numbrushes*sizeof(dbrush_t)));
printf ("%6i brushsides %7i\n"
,numbrushsides, (int)(numbrushsides*sizeof(dbrushside_t)));
printf ("%6i planes %7i\n"
,numplanes, (int)(numplanes*sizeof(dplane_t)));
printf ("%6i texinfo %7i\n"
,numtexinfo, (int)(numtexinfo*sizeof(texinfo_t)));
printf ("%6i entdata %7i\n", num_entities, entdatasize);
printf ("\n");
printf ("%6i vertexes %7i\n"
,numvertexes, (int)(numvertexes*sizeof(dvertex_t)));
printf ("%6i nodes %7i\n"
,numnodes, (int)(numnodes*sizeof(dnode_t)));
printf ("%6i faces %7i\n"
,numfaces, (int)(numfaces*sizeof(dface_t)));
printf ("%6i leafs %7i\n"
,numleafs, (int)(numleafs*sizeof(dleaf_t)));
printf ("%6i leaffaces %7i\n"
,numleaffaces, (int)(numleaffaces*sizeof(dleaffaces[0])));
printf ("%6i leafbrushes %7i\n"
,numleafbrushes, (int)(numleafbrushes*sizeof(dleafbrushes[0])));
printf ("%6i surfedges %7i\n"
,numsurfedges, (int)(numsurfedges*sizeof(dsurfedges[0])));
printf ("%6i edges %7i\n"
,numedges, (int)(numedges*sizeof(dedge_t)));
//NEW
printf ("%6i areas %7i\n"
,numareas, (int)(numareas*sizeof(darea_t)));
printf ("%6i areaportals %7i\n"
,numareaportals, (int)(numareaportals*sizeof(dareaportal_t)));
//ENDNEW
printf (" lightdata %7i\n", lightdatasize);
printf (" visdata %7i\n", visdatasize);
} //end of the function Q2_PrintBSPFileSizes
/*
================
ParseEntities
Parses the dentdata string into entities
================
*/
void Q2_ParseEntities (void)
{
script_t *script;
num_entities = 0;
script = LoadScriptMemory(dentdata, entdatasize, "*Quake2 bsp file");
SetScriptFlags(script, SCFL_NOSTRINGWHITESPACES |
SCFL_NOSTRINGESCAPECHARS);
while(ParseEntity(script))
{
} //end while
FreeScript(script);
} //end of the function Q2_ParseEntities
/*
================
UnparseEntities
Generates the dentdata string from all the entities
================
*/
void Q2_UnparseEntities (void)
{
char *buf, *end;
epair_t *ep;
char line[2048];
int i;
char key[1024], value[1024];
buf = dentdata;
end = buf;
*end = 0;
for (i=0 ; i<num_entities ; i++)
{
ep = entities[i].epairs;
if (!ep)
continue; // ent got removed
strcat (end,"{\n");
end += 2;
for (ep = entities[i].epairs ; ep ; ep=ep->next)
{
strcpy (key, ep->key);
StripTrailing (key);
strcpy (value, ep->value);
StripTrailing (value);
sprintf (line, "\"%s\" \"%s\"\n", key, value);
strcat (end, line);
end += strlen(line);
}
strcat (end,"}\n");
end += 2;
if (end > buf + MAX_MAP_ENTSTRING)
Error ("Entity text too long");
}
entdatasize = end - buf + 1;
} //end of the function Q2_UnparseEntities