ref: 761946b93cf45a3b9e47868a704fb165af760333
dir: /code/bspc/l_bsp_q3.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 "l_qfiles.h"
#include "l_bsp_q3.h"
#include "l_bsp_ent.h"
void Q3_ParseEntities (void);
void Q3_PrintBSPFileSizes(void);
void GetLeafNums (void);
//=============================================================================
#define WCONVEX_EPSILON 0.5
int q3_nummodels;
q3_dmodel_t *q3_dmodels;//[MAX_MAP_MODELS];
int q3_numShaders;
q3_dshader_t *q3_dshaders;//[Q3_MAX_MAP_SHADERS];
int q3_entdatasize;
char *q3_dentdata;//[Q3_MAX_MAP_ENTSTRING];
int q3_numleafs;
q3_dleaf_t *q3_dleafs;//[Q3_MAX_MAP_LEAFS];
int q3_numplanes;
q3_dplane_t *q3_dplanes;//[Q3_MAX_MAP_PLANES];
int q3_numnodes;
q3_dnode_t *q3_dnodes;//[Q3_MAX_MAP_NODES];
int q3_numleafsurfaces;
int *q3_dleafsurfaces;//[Q3_MAX_MAP_LEAFFACES];
int q3_numleafbrushes;
int *q3_dleafbrushes;//[Q3_MAX_MAP_LEAFBRUSHES];
int q3_numbrushes;
q3_dbrush_t *q3_dbrushes;//[Q3_MAX_MAP_BRUSHES];
int q3_numbrushsides;
q3_dbrushside_t *q3_dbrushsides;//[Q3_MAX_MAP_BRUSHSIDES];
int q3_numLightBytes;
byte *q3_lightBytes;//[Q3_MAX_MAP_LIGHTING];
int q3_numGridPoints;
byte *q3_gridData;//[Q3_MAX_MAP_LIGHTGRID];
int q3_numVisBytes;
byte *q3_visBytes;//[Q3_MAX_MAP_VISIBILITY];
int q3_numDrawVerts;
q3_drawVert_t *q3_drawVerts;//[Q3_MAX_MAP_DRAW_VERTS];
int q3_numDrawIndexes;
int *q3_drawIndexes;//[Q3_MAX_MAP_DRAW_INDEXES];
int q3_numDrawSurfaces;
q3_dsurface_t *q3_drawSurfaces;//[Q3_MAX_MAP_DRAW_SURFS];
int q3_numFogs;
q3_dfog_t *q3_dfogs;//[Q3_MAX_MAP_FOGS];
char q3_dbrushsidetextured[Q3_MAX_MAP_BRUSHSIDES];
extern qboolean forcesidesvisible;
//===========================================================================
//
// Parameter: -
// Returns: -
// Changes Globals: -
//===========================================================================
void Q3_FreeMaxBSP(void)
{
if (q3_dmodels) FreeMemory(q3_dmodels);
q3_dmodels = NULL;
q3_nummodels = 0;
if (q3_dshaders) FreeMemory(q3_dshaders);
q3_dshaders = NULL;
q3_numShaders = 0;
if (q3_dentdata) FreeMemory(q3_dentdata);
q3_dentdata = NULL;
q3_entdatasize = 0;
if (q3_dleafs) FreeMemory(q3_dleafs);
q3_dleafs = NULL;
q3_numleafs = 0;
if (q3_dplanes) FreeMemory(q3_dplanes);
q3_dplanes = NULL;
q3_numplanes = 0;
if (q3_dnodes) FreeMemory(q3_dnodes);
q3_dnodes = NULL;
q3_numnodes = 0;
if (q3_dleafsurfaces) FreeMemory(q3_dleafsurfaces);
q3_dleafsurfaces = NULL;
q3_numleafsurfaces = 0;
if (q3_dleafbrushes) FreeMemory(q3_dleafbrushes);
q3_dleafbrushes = NULL;
q3_numleafbrushes = 0;
if (q3_dbrushes) FreeMemory(q3_dbrushes);
q3_dbrushes = NULL;
q3_numbrushes = 0;
if (q3_dbrushsides) FreeMemory(q3_dbrushsides);
q3_dbrushsides = NULL;
q3_numbrushsides = 0;
if (q3_lightBytes) FreeMemory(q3_lightBytes);
q3_lightBytes = NULL;
q3_numLightBytes = 0;
if (q3_gridData) FreeMemory(q3_gridData);
q3_gridData = NULL;
q3_numGridPoints = 0;
if (q3_visBytes) FreeMemory(q3_visBytes);
q3_visBytes = NULL;
q3_numVisBytes = 0;
if (q3_drawVerts) FreeMemory(q3_drawVerts);
q3_drawVerts = NULL;
q3_numDrawVerts = 0;
if (q3_drawIndexes) FreeMemory(q3_drawIndexes);
q3_drawIndexes = NULL;
q3_numDrawIndexes = 0;
if (q3_drawSurfaces) FreeMemory(q3_drawSurfaces);
q3_drawSurfaces = NULL;
q3_numDrawSurfaces = 0;
if (q3_dfogs) FreeMemory(q3_dfogs);
q3_dfogs = NULL;
q3_numFogs = 0;
} //end of the function Q3_FreeMaxBSP
//===========================================================================
//
// Parameter: -
// Returns: -
// Changes Globals: -
//===========================================================================
void Q3_PlaneFromPoints(vec3_t p0, vec3_t p1, vec3_t p2, vec3_t normal, float *dist)
{
vec3_t t1, t2;
VectorSubtract(p0, p1, t1);
VectorSubtract(p2, p1, t2);
CrossProduct(t1, t2, normal);
VectorNormalize(normal);
*dist = DotProduct(p0, normal);
} //end of the function PlaneFromPoints
//===========================================================================
//
// Parameter: -
// Returns: -
// Changes Globals: -
//===========================================================================
void Q3_SurfacePlane(q3_dsurface_t *surface, vec3_t normal, float *dist)
{
int i;
float *p0, *p1, *p2;
vec3_t t1, t2;
p0 = q3_drawVerts[surface->firstVert].xyz;
for (i = 1; i < surface->numVerts-1; i++)
{
p1 = q3_drawVerts[surface->firstVert + ((i) % surface->numVerts)].xyz;
p2 = q3_drawVerts[surface->firstVert + ((i+1) % surface->numVerts)].xyz;
VectorSubtract(p0, p1, t1);
VectorSubtract(p2, p1, t2);
CrossProduct(t1, t2, normal);
VectorNormalize(normal);
if (VectorLength(normal)) break;
} //end for*/
/*
float dot;
for (i = 0; i < surface->numVerts; i++)
{
p0 = q3_drawVerts[surface->firstVert + ((i) % surface->numVerts)].xyz;
p1 = q3_drawVerts[surface->firstVert + ((i+1) % surface->numVerts)].xyz;
p2 = q3_drawVerts[surface->firstVert + ((i+2) % surface->numVerts)].xyz;
VectorSubtract(p0, p1, t1);
VectorSubtract(p2, p1, t2);
VectorNormalize(t1);
VectorNormalize(t2);
dot = DotProduct(t1, t2);
if (dot > -0.9 && dot < 0.9 &&
VectorLength(t1) > 0.1 && VectorLength(t2) > 0.1) break;
} //end for
CrossProduct(t1, t2, normal);
VectorNormalize(normal);
*/
if (VectorLength(normal) < 0.9)
{
printf("surface %d bogus normal vector %f %f %f\n", surface - q3_drawSurfaces, normal[0], normal[1], normal[2]);
printf("t1 = %f %f %f, t2 = %f %f %f\n", t1[0], t1[1], t1[2], t2[0], t2[1], t2[2]);
for (i = 0; i < surface->numVerts; i++)
{
p1 = q3_drawVerts[surface->firstVert + ((i) % surface->numVerts)].xyz;
Log_Print("p%d = %f %f %f\n", i, p1[0], p1[1], p1[2]);
} //end for
} //end if
*dist = DotProduct(p0, normal);
} //end of the function Q3_SurfacePlane
//===========================================================================
//
// Parameter: -
// Returns: -
// Changes Globals: -
//===========================================================================
q3_dplane_t *q3_surfaceplanes;
void Q3_CreatePlanarSurfacePlanes(void)
{
int i;
q3_dsurface_t *surface;
Log_Print("creating planar surface planes...\n");
q3_surfaceplanes = (q3_dplane_t *) GetClearedMemory(q3_numDrawSurfaces * sizeof(q3_dplane_t));
for (i = 0; i < q3_numDrawSurfaces; i++)
{
surface = &q3_drawSurfaces[i];
if (surface->surfaceType != MST_PLANAR) continue;
Q3_SurfacePlane(surface, q3_surfaceplanes[i].normal, &q3_surfaceplanes[i].dist);
//Log_Print("normal = %f %f %f, dist = %f\n", q3_surfaceplanes[i].normal[0],
// q3_surfaceplanes[i].normal[1],
// q3_surfaceplanes[i].normal[2], q3_surfaceplanes[i].dist);
} //end for
} //end of the function Q3_CreatePlanarSurfacePlanes
//===========================================================================
//
// Parameter: -
// Returns: -
// Changes Globals: -
//===========================================================================
/*
void Q3_SurfacePlane(q3_dsurface_t *surface, vec3_t normal, float *dist)
{
//take the plane information from the lightmap vector
//VectorCopy(surface->lightmapVecs[2], normal);
//calculate plane dist with first surface vertex
//*dist = DotProduct(q3_drawVerts[surface->firstVert].xyz, normal);
Q3_PlaneFromPoints(q3_drawVerts[surface->firstVert].xyz,
q3_drawVerts[surface->firstVert+1].xyz,
q3_drawVerts[surface->firstVert+2].xyz, normal, dist);
} //end of the function Q3_SurfacePlane*/
//===========================================================================
// returns the amount the face and the winding overlap
//
// Parameter: -
// Returns: -
// Changes Globals: -
//===========================================================================
float Q3_FaceOnWinding(q3_dsurface_t *surface, winding_t *winding)
{
int i;
float dist, area;
q3_dplane_t plane;
vec_t *v1, *v2;
vec3_t normal, edgevec;
winding_t *w;
//copy the winding before chopping
w = CopyWinding(winding);
//retrieve the surface plane
Q3_SurfacePlane(surface, plane.normal, &plane.dist);
//chop the winding with the surface edge planes
for (i = 0; i < surface->numVerts && w; i++)
{
v1 = q3_drawVerts[surface->firstVert + ((i) % surface->numVerts)].xyz;
v2 = q3_drawVerts[surface->firstVert + ((i+1) % surface->numVerts)].xyz;
//create a plane through the edge from v1 to v2, orthogonal to the
//surface plane and with the normal vector pointing inward
VectorSubtract(v2, v1, 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 Q3_FaceOnWinding
//===========================================================================
// creates a winding for the given brush side on the given brush
//
// Parameter: -
// Returns: -
// Changes Globals: -
//===========================================================================
winding_t *Q3_BrushSideWinding(q3_dbrush_t *brush, q3_dbrushside_t *baseside)
{
int i;
q3_dplane_t *baseplane, *plane;
winding_t *w;
q3_dbrushside_t *side;
//create a winding for the brush side with the given planenumber
baseplane = &q3_dplanes[baseside->planeNum];
w = BaseWindingForPlane(baseplane->normal, baseplane->dist);
for (i = 0; i < brush->numSides && w; i++)
{
side = &q3_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 = &q3_dplanes[side->planeNum];
if (DotProduct(baseplane->normal, plane->normal) > 0.999
&& fabs(baseplane->dist - plane->dist) < 0.01) continue;
//
plane = &q3_dplanes[side->planeNum^1];
ChopWindingInPlace(&w, plane->normal, plane->dist, -0.1); //CLIP_EPSILON);
} //end for
return w;
} //end of the function Q3_BrushSideWinding
//===========================================================================
// fix screwed brush texture references
//
// Parameter: -
// Returns: -
// Changes Globals: -
//===========================================================================
qboolean WindingIsTiny(winding_t *w);
void Q3_FindVisibleBrushSides(void)
{
int i, j, k, we, numtextured, numsides;
float dot;
q3_dplane_t *plane;
q3_dbrushside_t *brushside;
q3_dbrush_t *brush;
q3_dsurface_t *surface;
winding_t *w;
memset(q3_dbrushsidetextured, false, Q3_MAX_MAP_BRUSHSIDES);
//
numsides = 0;
//create planes for the planar surfaces
Q3_CreatePlanarSurfacePlanes();
Log_Print("searching visible brush sides...\n");
Log_Print("%6d brush sides", numsides);
//go over all the brushes
for (i = 0; i < q3_numbrushes; i++)
{
brush = &q3_dbrushes[i];
//go over all the sides of the brush
for (j = 0; j < brush->numSides; j++)
{
qprintf("\r%6d", numsides++);
brushside = &q3_dbrushsides[brush->firstSide + j];
//
w = Q3_BrushSideWinding(brush, brushside);
if (!w)
{
q3_dbrushsidetextured[brush->firstSide + j] = true;
continue;
} //end if
else
{
//RemoveEqualPoints(w, 0.2);
if (WindingIsTiny(w))
{
FreeWinding(w);
q3_dbrushsidetextured[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);
q3_dbrushsidetextured[brush->firstSide + j] = true;
continue;
} //end if
} //end else
} //end else
if (WindingArea(w) < 20)
{
q3_dbrushsidetextured[brush->firstSide + j] = true;
continue;
} //end if
//find a face for texturing this brush
for (k = 0; k < q3_numDrawSurfaces; k++)
{
surface = &q3_drawSurfaces[k];
if (surface->surfaceType != MST_PLANAR) continue;
//
//Q3_SurfacePlane(surface, plane.normal, &plane.dist);
plane = &q3_surfaceplanes[k];
//the surface plane and the brush side plane should be pretty much the same
if (fabs(fabs(plane->dist) - fabs(q3_dplanes[brushside->planeNum].dist)) > 5) continue;
dot = DotProduct(plane->normal, q3_dplanes[brushside->planeNum].normal);
if (dot > -0.9 && dot < 0.9) continue;
//if the face is partly or totally on the brush side
if (Q3_FaceOnWinding(surface, w))
{
q3_dbrushsidetextured[brush->firstSide + j] = true;
//Log_Write("Q3_FaceOnWinding");
break;
} //end if
} //end for
FreeWinding(w);
} //end for
} //end for
qprintf("\r%6d brush sides\n", numsides);
numtextured = 0;
for (i = 0; i < q3_numbrushsides; i++)
{
if (forcesidesvisible) q3_dbrushsidetextured[i] = true;
if (q3_dbrushsidetextured[i]) numtextured++;
} //end for
Log_Print("%d brush sides textured out of %d\n", numtextured, q3_numbrushsides);
} //end of the function Q3_FindVisibleBrushSides
/*
=============
Q3_SwapBlock
If all values are 32 bits, this can be used to swap everything
=============
*/
void Q3_SwapBlock( int *block, int sizeOfBlock ) {
int i;
sizeOfBlock >>= 2;
for ( i = 0 ; i < sizeOfBlock ; i++ ) {
block[i] = LittleLong( block[i] );
}
} //end of the function Q3_SwapBlock
/*
=============
Q3_SwapBSPFile
Byte swaps all data in a bsp file.
=============
*/
void Q3_SwapBSPFile( void ) {
int i;
// models
Q3_SwapBlock( (int *)q3_dmodels, q3_nummodels * sizeof( q3_dmodels[0] ) );
// shaders (don't swap the name)
for ( i = 0 ; i < q3_numShaders ; i++ ) {
q3_dshaders[i].contentFlags = LittleLong( q3_dshaders[i].contentFlags );
q3_dshaders[i].surfaceFlags = LittleLong( q3_dshaders[i].surfaceFlags );
}
// planes
Q3_SwapBlock( (int *)q3_dplanes, q3_numplanes * sizeof( q3_dplanes[0] ) );
// nodes
Q3_SwapBlock( (int *)q3_dnodes, q3_numnodes * sizeof( q3_dnodes[0] ) );
// leafs
Q3_SwapBlock( (int *)q3_dleafs, q3_numleafs * sizeof( q3_dleafs[0] ) );
// leaffaces
Q3_SwapBlock( (int *)q3_dleafsurfaces, q3_numleafsurfaces * sizeof( q3_dleafsurfaces[0] ) );
// leafbrushes
Q3_SwapBlock( (int *)q3_dleafbrushes, q3_numleafbrushes * sizeof( q3_dleafbrushes[0] ) );
// brushes
Q3_SwapBlock( (int *)q3_dbrushes, q3_numbrushes * sizeof( q3_dbrushes[0] ) );
// brushsides
Q3_SwapBlock( (int *)q3_dbrushsides, q3_numbrushsides * sizeof( q3_dbrushsides[0] ) );
// vis
((int *)&q3_visBytes)[0] = LittleLong( ((int *)&q3_visBytes)[0] );
((int *)&q3_visBytes)[1] = LittleLong( ((int *)&q3_visBytes)[1] );
// drawverts (don't swap colors )
for ( i = 0 ; i < q3_numDrawVerts ; i++ ) {
q3_drawVerts[i].lightmap[0] = LittleFloat( q3_drawVerts[i].lightmap[0] );
q3_drawVerts[i].lightmap[1] = LittleFloat( q3_drawVerts[i].lightmap[1] );
q3_drawVerts[i].st[0] = LittleFloat( q3_drawVerts[i].st[0] );
q3_drawVerts[i].st[1] = LittleFloat( q3_drawVerts[i].st[1] );
q3_drawVerts[i].xyz[0] = LittleFloat( q3_drawVerts[i].xyz[0] );
q3_drawVerts[i].xyz[1] = LittleFloat( q3_drawVerts[i].xyz[1] );
q3_drawVerts[i].xyz[2] = LittleFloat( q3_drawVerts[i].xyz[2] );
q3_drawVerts[i].normal[0] = LittleFloat( q3_drawVerts[i].normal[0] );
q3_drawVerts[i].normal[1] = LittleFloat( q3_drawVerts[i].normal[1] );
q3_drawVerts[i].normal[2] = LittleFloat( q3_drawVerts[i].normal[2] );
}
// drawindexes
Q3_SwapBlock( (int *)q3_drawIndexes, q3_numDrawIndexes * sizeof( q3_drawIndexes[0] ) );
// drawsurfs
Q3_SwapBlock( (int *)q3_drawSurfaces, q3_numDrawSurfaces * sizeof( q3_drawSurfaces[0] ) );
// fogs
for ( i = 0 ; i < q3_numFogs ; i++ ) {
q3_dfogs[i].brushNum = LittleLong( q3_dfogs[i].brushNum );
}
}
/*
=============
Q3_CopyLump
=============
*/
int Q3_CopyLump( q3_dheader_t *header, int lump, void **dest, int size ) {
int length, ofs;
length = header->lumps[lump].filelen;
ofs = header->lumps[lump].fileofs;
if ( length % size ) {
Error ("Q3_LoadBSPFile: odd lump size");
}
*dest = GetMemory(length);
memcpy( *dest, (byte *)header + ofs, length );
return length / size;
}
/*
=============
CountTriangles
=============
*/
void CountTriangles( void ) {
int i, numTris, numPatchTris;
q3_dsurface_t *surface;
numTris = numPatchTris = 0;
for ( i = 0; i < q3_numDrawSurfaces; i++ ) {
surface = &q3_drawSurfaces[i];
numTris += surface->numIndexes / 3;
if ( surface->patchWidth ) {
numPatchTris += surface->patchWidth * surface->patchHeight * 2;
}
}
Log_Print( "%6d triangles\n", numTris );
Log_Print( "%6d patch tris\n", numPatchTris );
}
/*
=============
Q3_LoadBSPFile
=============
*/
void Q3_LoadBSPFile(struct quakefile_s *qf)
{
q3_dheader_t *header;
// load the file header
//LoadFile(filename, (void **)&header, offset, length);
//
LoadQuakeFile(qf, (void **)&header);
// swap the header
Q3_SwapBlock( (int *)header, sizeof(*header) );
if ( header->ident != Q3_BSP_IDENT ) {
Error( "%s is not a IBSP file", qf->filename );
}
if ( header->version != Q3_BSP_VERSION ) {
Error( "%s is version %i, not %i", qf->filename, header->version, Q3_BSP_VERSION );
}
q3_numShaders = Q3_CopyLump( header, Q3_LUMP_SHADERS, (void *) &q3_dshaders, sizeof(q3_dshader_t) );
q3_nummodels = Q3_CopyLump( header, Q3_LUMP_MODELS, (void *) &q3_dmodels, sizeof(q3_dmodel_t) );
q3_numplanes = Q3_CopyLump( header, Q3_LUMP_PLANES, (void *) &q3_dplanes, sizeof(q3_dplane_t) );
q3_numleafs = Q3_CopyLump( header, Q3_LUMP_LEAFS, (void *) &q3_dleafs, sizeof(q3_dleaf_t) );
q3_numnodes = Q3_CopyLump( header, Q3_LUMP_NODES, (void *) &q3_dnodes, sizeof(q3_dnode_t) );
q3_numleafsurfaces = Q3_CopyLump( header, Q3_LUMP_LEAFSURFACES, (void *) &q3_dleafsurfaces, sizeof(q3_dleafsurfaces[0]) );
q3_numleafbrushes = Q3_CopyLump( header, Q3_LUMP_LEAFBRUSHES, (void *) &q3_dleafbrushes, sizeof(q3_dleafbrushes[0]) );
q3_numbrushes = Q3_CopyLump( header, Q3_LUMP_BRUSHES, (void *) &q3_dbrushes, sizeof(q3_dbrush_t) );
q3_numbrushsides = Q3_CopyLump( header, Q3_LUMP_BRUSHSIDES, (void *) &q3_dbrushsides, sizeof(q3_dbrushside_t) );
q3_numDrawVerts = Q3_CopyLump( header, Q3_LUMP_DRAWVERTS, (void *) &q3_drawVerts, sizeof(q3_drawVert_t) );
q3_numDrawSurfaces = Q3_CopyLump( header, Q3_LUMP_SURFACES, (void *) &q3_drawSurfaces, sizeof(q3_dsurface_t) );
q3_numFogs = Q3_CopyLump( header, Q3_LUMP_FOGS, (void *) &q3_dfogs, sizeof(q3_dfog_t) );
q3_numDrawIndexes = Q3_CopyLump( header, Q3_LUMP_DRAWINDEXES, (void *) &q3_drawIndexes, sizeof(q3_drawIndexes[0]) );
q3_numVisBytes = Q3_CopyLump( header, Q3_LUMP_VISIBILITY, (void *) &q3_visBytes, 1 );
q3_numLightBytes = Q3_CopyLump( header, Q3_LUMP_LIGHTMAPS, (void *) &q3_lightBytes, 1 );
q3_entdatasize = Q3_CopyLump( header, Q3_LUMP_ENTITIES, (void *) &q3_dentdata, 1);
q3_numGridPoints = Q3_CopyLump( header, Q3_LUMP_LIGHTGRID, (void *) &q3_gridData, 8 );
CountTriangles();
FreeMemory( header ); // everything has been copied out
// swap everything
Q3_SwapBSPFile();
Q3_FindVisibleBrushSides();
//Q3_PrintBSPFileSizes();
}
//============================================================================
/*
=============
Q3_AddLump
=============
*/
void Q3_AddLump( FILE *bspfile, q3_dheader_t *header, int lumpnum, void *data, int len ) {
q3_lump_t *lump;
lump = &header->lumps[lumpnum];
lump->fileofs = LittleLong( ftell(bspfile) );
lump->filelen = LittleLong( len );
SafeWrite( bspfile, data, (len+3)&~3 );
}
/*
=============
Q3_WriteBSPFile
Swaps the bsp file in place, so it should not be referenced again
=============
*/
void Q3_WriteBSPFile( char *filename )
{
q3_dheader_t outheader, *header;
FILE *bspfile;
header = &outheader;
memset( header, 0, sizeof(q3_dheader_t) );
Q3_SwapBSPFile();
header->ident = LittleLong( Q3_BSP_IDENT );
header->version = LittleLong( Q3_BSP_VERSION );
bspfile = SafeOpenWrite( filename );
SafeWrite( bspfile, header, sizeof(q3_dheader_t) ); // overwritten later
Q3_AddLump( bspfile, header, Q3_LUMP_SHADERS, q3_dshaders, q3_numShaders*sizeof(q3_dshader_t) );
Q3_AddLump( bspfile, header, Q3_LUMP_PLANES, q3_dplanes, q3_numplanes*sizeof(q3_dplane_t) );
Q3_AddLump( bspfile, header, Q3_LUMP_LEAFS, q3_dleafs, q3_numleafs*sizeof(q3_dleaf_t) );
Q3_AddLump( bspfile, header, Q3_LUMP_NODES, q3_dnodes, q3_numnodes*sizeof(q3_dnode_t) );
Q3_AddLump( bspfile, header, Q3_LUMP_BRUSHES, q3_dbrushes, q3_numbrushes*sizeof(q3_dbrush_t) );
Q3_AddLump( bspfile, header, Q3_LUMP_BRUSHSIDES, q3_dbrushsides, q3_numbrushsides*sizeof(q3_dbrushside_t) );
Q3_AddLump( bspfile, header, Q3_LUMP_LEAFSURFACES, q3_dleafsurfaces, q3_numleafsurfaces*sizeof(q3_dleafsurfaces[0]) );
Q3_AddLump( bspfile, header, Q3_LUMP_LEAFBRUSHES, q3_dleafbrushes, q3_numleafbrushes*sizeof(q3_dleafbrushes[0]) );
Q3_AddLump( bspfile, header, Q3_LUMP_MODELS, q3_dmodels, q3_nummodels*sizeof(q3_dmodel_t) );
Q3_AddLump( bspfile, header, Q3_LUMP_DRAWVERTS, q3_drawVerts, q3_numDrawVerts*sizeof(q3_drawVert_t) );
Q3_AddLump( bspfile, header, Q3_LUMP_SURFACES, q3_drawSurfaces, q3_numDrawSurfaces*sizeof(q3_dsurface_t) );
Q3_AddLump( bspfile, header, Q3_LUMP_VISIBILITY, q3_visBytes, q3_numVisBytes );
Q3_AddLump( bspfile, header, Q3_LUMP_LIGHTMAPS, q3_lightBytes, q3_numLightBytes );
Q3_AddLump( bspfile, header, Q3_LUMP_LIGHTGRID, q3_gridData, 8 * q3_numGridPoints );
Q3_AddLump( bspfile, header, Q3_LUMP_ENTITIES, q3_dentdata, q3_entdatasize );
Q3_AddLump( bspfile, header, Q3_LUMP_FOGS, q3_dfogs, q3_numFogs * sizeof(q3_dfog_t) );
Q3_AddLump( bspfile, header, Q3_LUMP_DRAWINDEXES, q3_drawIndexes, q3_numDrawIndexes * sizeof(q3_drawIndexes[0]) );
fseek (bspfile, 0, SEEK_SET);
SafeWrite (bspfile, header, sizeof(q3_dheader_t));
fclose (bspfile);
}
//============================================================================
/*
=============
Q3_PrintBSPFileSizes
Dumps info about current file
=============
*/
void Q3_PrintBSPFileSizes( void )
{
if ( !num_entities )
{
Q3_ParseEntities();
}
Log_Print ("%6i models %7i\n"
,q3_nummodels, (int)(q3_nummodels*sizeof(q3_dmodel_t)));
Log_Print ("%6i shaders %7i\n"
,q3_numShaders, (int)(q3_numShaders*sizeof(q3_dshader_t)));
Log_Print ("%6i brushes %7i\n"
,q3_numbrushes, (int)(q3_numbrushes*sizeof(q3_dbrush_t)));
Log_Print ("%6i brushsides %7i\n"
,q3_numbrushsides, (int)(q3_numbrushsides*sizeof(q3_dbrushside_t)));
Log_Print ("%6i fogs %7i\n"
,q3_numFogs, (int)(q3_numFogs*sizeof(q3_dfog_t)));
Log_Print ("%6i planes %7i\n"
,q3_numplanes, (int)(q3_numplanes*sizeof(q3_dplane_t)));
Log_Print ("%6i entdata %7i\n", num_entities, q3_entdatasize);
Log_Print ("\n");
Log_Print ("%6i nodes %7i\n"
,q3_numnodes, (int)(q3_numnodes*sizeof(q3_dnode_t)));
Log_Print ("%6i leafs %7i\n"
,q3_numleafs, (int)(q3_numleafs*sizeof(q3_dleaf_t)));
Log_Print ("%6i leafsurfaces %7i\n"
,q3_numleafsurfaces, (int)(q3_numleafsurfaces*sizeof(q3_dleafsurfaces[0])));
Log_Print ("%6i leafbrushes %7i\n"
,q3_numleafbrushes, (int)(q3_numleafbrushes*sizeof(q3_dleafbrushes[0])));
Log_Print ("%6i drawverts %7i\n"
,q3_numDrawVerts, (int)(q3_numDrawVerts*sizeof(q3_drawVerts[0])));
Log_Print ("%6i drawindexes %7i\n"
,q3_numDrawIndexes, (int)(q3_numDrawIndexes*sizeof(q3_drawIndexes[0])));
Log_Print ("%6i drawsurfaces %7i\n"
,q3_numDrawSurfaces, (int)(q3_numDrawSurfaces*sizeof(q3_drawSurfaces[0])));
Log_Print ("%6i lightmaps %7i\n"
,q3_numLightBytes / (LIGHTMAP_WIDTH*LIGHTMAP_HEIGHT*3), q3_numLightBytes );
Log_Print (" visibility %7i\n"
, q3_numVisBytes );
}
/*
================
Q3_ParseEntities
Parses the q3_dentdata string into entities
================
*/
void Q3_ParseEntities (void)
{
script_t *script;
num_entities = 0;
script = LoadScriptMemory(q3_dentdata, q3_entdatasize, "*Quake3 bsp file");
SetScriptFlags(script, SCFL_NOSTRINGWHITESPACES |
SCFL_NOSTRINGESCAPECHARS);
while(ParseEntity(script))
{
} //end while
FreeScript(script);
} //end of the function Q3_ParseEntities
/*
================
Q3_UnparseEntities
Generates the q3_dentdata string from all the entities
================
*/
void Q3_UnparseEntities (void)
{
char *buf, *end;
epair_t *ep;
char line[2048];
int i;
buf = q3_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)
{
sprintf (line, "\"%s\" \"%s\"\n", ep->key, ep->value);
strcat (end, line);
end += strlen(line);
}
strcat (end,"}\n");
end += 2;
if (end > buf + Q3_MAX_MAP_ENTSTRING)
Error ("Entity text too long");
}
q3_entdatasize = end - buf + 1;
} //end of the function Q3_UnparseEntities