ref: 13ca2581f9f18d441ce911e42c2bd93e387cee4d
dir: /common/bspfile.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 "cmdlib.h"
#include "mathlib.h"
#include "bspfile.h"
#include "scriplib.h"
void GetLeafNums (void);
//=============================================================================
int nummodels;
dmodel_t dmodels[MAX_MAP_MODELS];
int numShaders;
dshader_t dshaders[MAX_MAP_SHADERS];
int entdatasize;
char dentdata[MAX_MAP_ENTSTRING];
int numleafs;
dleaf_t dleafs[MAX_MAP_LEAFS];
int numplanes;
dplane_t dplanes[MAX_MAP_PLANES];
int numnodes;
dnode_t dnodes[MAX_MAP_NODES];
int numleafsurfaces;
int dleafsurfaces[MAX_MAP_LEAFFACES];
int numleafbrushes;
int dleafbrushes[MAX_MAP_LEAFBRUSHES];
int numbrushes;
dbrush_t dbrushes[MAX_MAP_BRUSHES];
int numbrushsides;
dbrushside_t dbrushsides[MAX_MAP_BRUSHSIDES];
int numLightBytes;
byte lightBytes[MAX_MAP_LIGHTING];
int numGridPoints;
byte gridData[MAX_MAP_LIGHTGRID];
int numVisBytes;
byte visBytes[MAX_MAP_VISIBILITY];
int numDrawVerts;
drawVert_t drawVerts[MAX_MAP_DRAW_VERTS];
int numDrawIndexes;
int drawIndexes[MAX_MAP_DRAW_INDEXES];
int numDrawSurfaces;
dsurface_t drawSurfaces[MAX_MAP_DRAW_SURFS];
int numFogs;
dfog_t dfogs[MAX_MAP_FOGS];
//=============================================================================
/*
=============
SwapBlock
If all values are 32 bits, this can be used to swap everything
=============
*/
void SwapBlock( int *block, int sizeOfBlock ) {
int i;
sizeOfBlock >>= 2;
for ( i = 0 ; i < sizeOfBlock ; i++ ) {
block[i] = LittleLong( block[i] );
}
}
/*
=============
SwapBSPFile
Byte swaps all data in a bsp file.
=============
*/
void SwapBSPFile( void ) {
int i;
// models
SwapBlock( (int *)dmodels, nummodels * sizeof( dmodels[0] ) );
// shaders (don't swap the name)
for ( i = 0 ; i < numShaders ; i++ ) {
dshaders[i].contentFlags = LittleLong( dshaders[i].contentFlags );
dshaders[i].surfaceFlags = LittleLong( dshaders[i].surfaceFlags );
}
// planes
SwapBlock( (int *)dplanes, numplanes * sizeof( dplanes[0] ) );
// nodes
SwapBlock( (int *)dnodes, numnodes * sizeof( dnodes[0] ) );
// leafs
SwapBlock( (int *)dleafs, numleafs * sizeof( dleafs[0] ) );
// leaffaces
SwapBlock( (int *)dleafsurfaces, numleafsurfaces * sizeof( dleafsurfaces[0] ) );
// leafbrushes
SwapBlock( (int *)dleafbrushes, numleafbrushes * sizeof( dleafbrushes[0] ) );
// brushes
SwapBlock( (int *)dbrushes, numbrushes * sizeof( dbrushes[0] ) );
// brushsides
SwapBlock( (int *)dbrushsides, numbrushsides * sizeof( dbrushsides[0] ) );
// vis
((int *)&visBytes)[0] = LittleLong( ((int *)&visBytes)[0] );
((int *)&visBytes)[1] = LittleLong( ((int *)&visBytes)[1] );
// drawverts (don't swap colors )
for ( i = 0 ; i < numDrawVerts ; i++ ) {
drawVerts[i].lightmap[0] = LittleFloat( drawVerts[i].lightmap[0] );
drawVerts[i].lightmap[1] = LittleFloat( drawVerts[i].lightmap[1] );
drawVerts[i].st[0] = LittleFloat( drawVerts[i].st[0] );
drawVerts[i].st[1] = LittleFloat( drawVerts[i].st[1] );
drawVerts[i].xyz[0] = LittleFloat( drawVerts[i].xyz[0] );
drawVerts[i].xyz[1] = LittleFloat( drawVerts[i].xyz[1] );
drawVerts[i].xyz[2] = LittleFloat( drawVerts[i].xyz[2] );
drawVerts[i].normal[0] = LittleFloat( drawVerts[i].normal[0] );
drawVerts[i].normal[1] = LittleFloat( drawVerts[i].normal[1] );
drawVerts[i].normal[2] = LittleFloat( drawVerts[i].normal[2] );
}
// drawindexes
SwapBlock( (int *)drawIndexes, numDrawIndexes * sizeof( drawIndexes[0] ) );
// drawsurfs
SwapBlock( (int *)drawSurfaces, numDrawSurfaces * sizeof( drawSurfaces[0] ) );
// fogs
for ( i = 0 ; i < numFogs ; i++ ) {
dfogs[i].brushNum = LittleLong( dfogs[i].brushNum );
dfogs[i].visibleSide = LittleLong( dfogs[i].visibleSide );
}
}
/*
=============
CopyLump
=============
*/
int CopyLump( 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 ("LoadBSPFile: odd lump size");
}
memcpy( dest, (byte *)header + ofs, length );
return length / size;
}
/*
=============
LoadBSPFile
=============
*/
void LoadBSPFile( const char *filename ) {
dheader_t *header;
// load the file header
LoadFile (filename, (void **)&header);
// swap the header
SwapBlock( (int *)header, sizeof(*header) );
if ( header->ident != BSP_IDENT ) {
Error( "%s is not a IBSP file", filename );
}
if ( header->version != BSP_VERSION ) {
Error( "%s is version %i, not %i", filename, header->version, BSP_VERSION );
}
numShaders = CopyLump( header, LUMP_SHADERS, dshaders, sizeof(dshader_t) );
nummodels = CopyLump( header, LUMP_MODELS, dmodels, sizeof(dmodel_t) );
numplanes = CopyLump( header, LUMP_PLANES, dplanes, sizeof(dplane_t) );
numleafs = CopyLump( header, LUMP_LEAFS, dleafs, sizeof(dleaf_t) );
numnodes = CopyLump( header, LUMP_NODES, dnodes, sizeof(dnode_t) );
numleafsurfaces = CopyLump( header, LUMP_LEAFSURFACES, dleafsurfaces, sizeof(dleafsurfaces[0]) );
numleafbrushes = CopyLump( header, LUMP_LEAFBRUSHES, dleafbrushes, sizeof(dleafbrushes[0]) );
numbrushes = CopyLump( header, LUMP_BRUSHES, dbrushes, sizeof(dbrush_t) );
numbrushsides = CopyLump( header, LUMP_BRUSHSIDES, dbrushsides, sizeof(dbrushside_t) );
numDrawVerts = CopyLump( header, LUMP_DRAWVERTS, drawVerts, sizeof(drawVert_t) );
numDrawSurfaces = CopyLump( header, LUMP_SURFACES, drawSurfaces, sizeof(dsurface_t) );
numFogs = CopyLump( header, LUMP_FOGS, dfogs, sizeof(dfog_t) );
numDrawIndexes = CopyLump( header, LUMP_DRAWINDEXES, drawIndexes, sizeof(drawIndexes[0]) );
numVisBytes = CopyLump( header, LUMP_VISIBILITY, visBytes, 1 );
numLightBytes = CopyLump( header, LUMP_LIGHTMAPS, lightBytes, 1 );
entdatasize = CopyLump( header, LUMP_ENTITIES, dentdata, 1);
numGridPoints = CopyLump( header, LUMP_LIGHTGRID, gridData, 8 );
free( header ); // everything has been copied out
// swap everything
SwapBSPFile();
}
//============================================================================
/*
=============
AddLump
=============
*/
void AddLump( FILE *bspfile, dheader_t *header, int lumpnum, const void *data, int len ) {
lump_t *lump;
lump = &header->lumps[lumpnum];
lump->fileofs = LittleLong( ftell(bspfile) );
lump->filelen = LittleLong( len );
SafeWrite( bspfile, data, (len+3)&~3 );
}
/*
=============
WriteBSPFile
Swaps the bsp file in place, so it should not be referenced again
=============
*/
void WriteBSPFile( const char *filename ) {
dheader_t outheader, *header;
FILE *bspfile;
header = &outheader;
memset( header, 0, sizeof(dheader_t) );
SwapBSPFile();
header->ident = LittleLong( BSP_IDENT );
header->version = LittleLong( BSP_VERSION );
bspfile = SafeOpenWrite( filename );
SafeWrite( bspfile, header, sizeof(dheader_t) ); // overwritten later
AddLump( bspfile, header, LUMP_SHADERS, dshaders, numShaders*sizeof(dshader_t) );
AddLump( bspfile, header, LUMP_PLANES, dplanes, numplanes*sizeof(dplane_t) );
AddLump( bspfile, header, LUMP_LEAFS, dleafs, numleafs*sizeof(dleaf_t) );
AddLump( bspfile, header, LUMP_NODES, dnodes, numnodes*sizeof(dnode_t) );
AddLump( bspfile, header, LUMP_BRUSHES, dbrushes, numbrushes*sizeof(dbrush_t) );
AddLump( bspfile, header, LUMP_BRUSHSIDES, dbrushsides, numbrushsides*sizeof(dbrushside_t) );
AddLump( bspfile, header, LUMP_LEAFSURFACES, dleafsurfaces, numleafsurfaces*sizeof(dleafsurfaces[0]) );
AddLump( bspfile, header, LUMP_LEAFBRUSHES, dleafbrushes, numleafbrushes*sizeof(dleafbrushes[0]) );
AddLump( bspfile, header, LUMP_MODELS, dmodels, nummodels*sizeof(dmodel_t) );
AddLump( bspfile, header, LUMP_DRAWVERTS, drawVerts, numDrawVerts*sizeof(drawVert_t) );
AddLump( bspfile, header, LUMP_SURFACES, drawSurfaces, numDrawSurfaces*sizeof(dsurface_t) );
AddLump( bspfile, header, LUMP_VISIBILITY, visBytes, numVisBytes );
AddLump( bspfile, header, LUMP_LIGHTMAPS, lightBytes, numLightBytes );
AddLump( bspfile, header, LUMP_LIGHTGRID, gridData, 8 * numGridPoints );
AddLump( bspfile, header, LUMP_ENTITIES, dentdata, entdatasize );
AddLump( bspfile, header, LUMP_FOGS, dfogs, numFogs * sizeof(dfog_t) );
AddLump( bspfile, header, LUMP_DRAWINDEXES, drawIndexes, numDrawIndexes * sizeof(drawIndexes[0]) );
fseek (bspfile, 0, SEEK_SET);
SafeWrite (bspfile, header, sizeof(dheader_t));
fclose (bspfile);
}
//============================================================================
/*
=============
PrintBSPFileSizes
Dumps info about current file
=============
*/
void PrintBSPFileSizes( void ) {
if ( !num_entities ) {
ParseEntities();
}
printf ("%6i models %7i\n"
,nummodels, (int)(nummodels*sizeof(dmodel_t)));
printf ("%6i shaders %7i\n"
,numShaders, (int)(numShaders*sizeof(dshader_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 fogs %7i\n"
,numFogs, (int)(numFogs*sizeof(dfog_t)));
printf ("%6i planes %7i\n"
,numplanes, (int)(numplanes*sizeof(dplane_t)));
printf ("%6i entdata %7i\n", num_entities, entdatasize);
printf ("\n");
printf ("%6i nodes %7i\n"
,numnodes, (int)(numnodes*sizeof(dnode_t)));
printf ("%6i leafs %7i\n"
,numleafs, (int)(numleafs*sizeof(dleaf_t)));
printf ("%6i leafsurfaces %7i\n"
,numleafsurfaces, (int)(numleafsurfaces*sizeof(dleafsurfaces[0])));
printf ("%6i leafbrushes %7i\n"
,numleafbrushes, (int)(numleafbrushes*sizeof(dleafbrushes[0])));
printf ("%6i drawverts %7i\n"
,numDrawVerts, (int)(numDrawVerts*sizeof(drawVerts[0])));
printf ("%6i drawindexes %7i\n"
,numDrawIndexes, (int)(numDrawIndexes*sizeof(drawIndexes[0])));
printf ("%6i drawsurfaces %7i\n"
,numDrawSurfaces, (int)(numDrawSurfaces*sizeof(drawSurfaces[0])));
printf ("%6i lightmaps %7i\n"
,numLightBytes / (LIGHTMAP_WIDTH*LIGHTMAP_HEIGHT*3), numLightBytes );
printf (" visibility %7i\n"
, numVisBytes );
}
//============================================
int num_entities;
entity_t entities[MAX_MAP_ENTITIES];
void StripTrailing( char *e ) {
char *s;
s = e + strlen(e)-1;
while (s >= e && *s <= 32)
{
*s = 0;
s--;
}
}
/*
=================
ParseEpair
=================
*/
epair_t *ParseEpair( void ) {
epair_t *e;
e = malloc( sizeof(epair_t) );
memset( e, 0, sizeof(epair_t) );
if ( strlen(token) >= MAX_KEY-1 ) {
Error ("ParseEpar: token too long");
}
e->key = copystring( token );
GetToken( qfalse );
if ( strlen(token) >= MAX_VALUE-1 ) {
Error ("ParseEpar: token too long");
}
e->value = copystring( token );
// strip trailing spaces that sometimes get accidentally
// added in the editor
StripTrailing( e->key );
StripTrailing( e->value );
return e;
}
/*
================
ParseEntity
================
*/
qboolean ParseEntity( void ) {
epair_t *e;
entity_t *mapent;
if ( !GetToken (qtrue) ) {
return qfalse;
}
if ( strcmp (token, "{") ) {
Error ("ParseEntity: { not found");
}
if ( num_entities == MAX_MAP_ENTITIES ) {
Error ("num_entities == MAX_MAP_ENTITIES");
}
mapent = &entities[num_entities];
num_entities++;
do {
if ( !GetToken (qtrue) ) {
Error ("ParseEntity: EOF without closing brace");
}
if ( !strcmp (token, "}") ) {
break;
}
e = ParseEpair ();
e->next = mapent->epairs;
mapent->epairs = e;
} while (1);
return qtrue;
}
/*
================
ParseEntities
Parses the dentdata string into entities
================
*/
void ParseEntities( void ) {
num_entities = 0;
ParseFromMemory( dentdata, entdatasize );
while ( ParseEntity () ) {
}
}
/*
================
UnparseEntities
Generates the dentdata string from all the entities
This allows the utilities to add or remove key/value pairs
to the data created by the map editor.
================
*/
void 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;
}
void PrintEntity( const entity_t *ent ) {
epair_t *ep;
printf ("------- entity %p -------\n", ent);
for (ep=ent->epairs ; ep ; ep=ep->next) {
printf( "%s = %s\n", ep->key, ep->value );
}
}
void SetKeyValue( entity_t *ent, const char *key, const char *value ) {
epair_t *ep;
for ( ep=ent->epairs ; ep ; ep=ep->next ) {
if ( !strcmp (ep->key, key) ) {
free (ep->value);
ep->value = copystring(value);
return;
}
}
ep = malloc (sizeof(*ep));
ep->next = ent->epairs;
ent->epairs = ep;
ep->key = copystring(key);
ep->value = copystring(value);
}
const char *ValueForKey( const entity_t *ent, const char *key ) {
epair_t *ep;
for (ep=ent->epairs ; ep ; ep=ep->next) {
if (!strcmp (ep->key, key) ) {
return ep->value;
}
}
return "";
}
vec_t FloatForKey( const entity_t *ent, const char *key ) {
const char *k;
k = ValueForKey( ent, key );
return atof(k);
}
void GetVectorForKey( const entity_t *ent, const char *key, vec3_t vec ) {
const char *k;
double v1, v2, v3;
k = ValueForKey (ent, key);
// scanf into doubles, then assign, so it is vec_t size independent
v1 = v2 = v3 = 0;
sscanf (k, "%lf %lf %lf", &v1, &v2, &v3);
vec[0] = v1;
vec[1] = v2;
vec[2] = v3;
}