/*
* CM_LoadMap
* Loads in the map and all submodels
*
* for spawning a server with no map at all, call like this:
* CM_LoadMap( "", qfalse, &checksum ); // no real map
*/
cmodel_t *CM_LoadMap( cmodel_state_t *cms, const char *name, qboolean clientload, unsigned *checksum )
{
int length;
unsigned *buf;
char *header;
const modelFormatDescr_t *descr;
bspFormatDesc_t *bspFormat = NULL;
assert( cms );
assert( name && strlen( name ) < MAX_CONFIGSTRING_CHARS );
assert( checksum );
cms->map_clientload = clientload;
if( !strcmp( cms->map_name, name ) && ( clientload || !Cvar_Value( "flushmap" ) ) )
{
*checksum = cms->checksum;
if( !clientload )
{
memset( cms->map_areaportals, 0, cms->numareas * cms->numareas * sizeof( *cms->map_areaportals ) );
CM_FloodAreaConnections( cms );
}
return cms->map_cmodels; // still have the right version
}
CM_Clear( cms );
if( !name || !name[0] )
{
cms->numleafs = 1;
cms->numcmodels = 2;
*checksum = 0;
return cms->map_cmodels; // cinematic servers won't have anything at all
}
//
// load the file
//
length = FS_LoadFile( name, ( void ** )&buf, NULL, 0 );
if( !buf )
Com_Error( ERR_DROP, "Couldn't load %s", name );
cms->checksum = Com_MD5Digest32( ( const qbyte * )buf, length );
*checksum = cms->checksum;
// call the apropriate loader
descr = Q_FindFormatDescriptor( cm_supportedformats, ( const qbyte * )buf, (const bspFormatDesc_t **)&bspFormat );
if( !descr )
Com_Error( ERR_DROP, "CM_LoadMap: unknown fileid for %s", name );
if( !bspFormat )
Com_Error( ERR_DROP, "CM_LoadMap: %s: unknown bsp format" );
// copy header into temp variable to be saveed in a cvar
header = Mem_TempMalloc( descr->headerLen + 1 );
memcpy( header, buf, descr->headerLen );
header[descr->headerLen] = '\0';
// store map format description in cvars
Cvar_ForceSet( "cm_mapHeader", header );
Cvar_ForceSet( "cm_mapVersion", va( "%i", LittleLong( *((int *)((qbyte *)buf + descr->headerLen)) ) ) );
Mem_TempFree( header );
descr->loader( cms, NULL, buf, bspFormat );
CM_InitBoxHull( cms );
CM_InitOctagonHull( cms );
if( cms->numareas )
{
cms->map_areas = Mem_Alloc( cms->mempool, cms->numareas * sizeof( *cms->map_areas ) );
cms->map_areaportals = Mem_Alloc( cms->mempool, cms->numareas * cms->numareas * sizeof( *cms->map_areaportals ) );
memset( cms->map_areaportals, 0, cms->numareas * cms->numareas * sizeof( *cms->map_areaportals ) );
CM_FloodAreaConnections( cms );
}
memset( cms->nullrow, 255, MAX_CM_LEAFS / 8 );
Q_strncpyz( cms->map_name, name, sizeof( cms->map_name ) );
return cms->map_cmodels;
}
/*
* Loads in the map and all submodels
*/
cmodel_t *CM_LoadMap (char *name, qboolean clientload, unsigned *checksum)
{
unsigned *buf;
int i;
dheader_t header;
int length;
static unsigned last_checksum;
map_noareas = Cvar_Get ("map_noareas", "0", 0);
if ( !strcmp (map_name, name) && (clientload || !Cvar_VariableValue ("flushmap")) )
{
*checksum = last_checksum;
if (!clientload)
{
memset (portalopen, 0, sizeof(portalopen));
FloodAreaConnections ();
}
return &map_cmodels[0]; /* still have the right version */
}
/* free old stuff */
numplanes = 0;
numnodes = 0;
numleafs = 0;
numcmodels = 0;
numvisibility = 0;
numentitychars = 0;
map_entitystring[0] = 0;
map_name[0] = 0;
if (!name || !name[0])
{
numleafs = 1;
numclusters = 1;
numareas = 1;
*checksum = 0;
return &map_cmodels[0]; /* cinematic servers won't have anything at all */
}
length = FS_LoadFile (name, (void **)&buf);
if (!buf)
Com_Error (ERR_DROP, "Couldn't load %s", name);
last_checksum = LittleLong (Com_BlockChecksum (buf, length));
*checksum = last_checksum;
header = *(dheader_t *)buf;
for (i=0 ; i<sizeof(dheader_t)/4 ; i++)
((int *)&header)[i] = LittleLong ( ((int *)&header)[i]);
if (header.version != BSPVERSION)
Com_Error (ERR_DROP, "CMod_LoadBrushModel: %s has wrong version number (%i should be %i)"
, name, header.version, BSPVERSION);
cmod_base = (byte *)buf;
/* load into heap */
CMod_LoadSurfaces (&header.lumps[LUMP_TEXINFO]);
CMod_LoadLeafs (&header.lumps[LUMP_LEAFS]);
CMod_LoadLeafBrushes (&header.lumps[LUMP_LEAFBRUSHES]);
CMod_LoadPlanes (&header.lumps[LUMP_PLANES]);
CMod_LoadBrushes (&header.lumps[LUMP_BRUSHES]);
CMod_LoadBrushSides (&header.lumps[LUMP_BRUSHSIDES]);
CMod_LoadSubmodels (&header.lumps[LUMP_MODELS]);
CMod_LoadNodes (&header.lumps[LUMP_NODES]);
CMod_LoadAreas (&header.lumps[LUMP_AREAS]);
CMod_LoadAreaPortals (&header.lumps[LUMP_AREAPORTALS]);
CMod_LoadVisibility (&header.lumps[LUMP_VISIBILITY]);
CMod_LoadEntityString (&header.lumps[LUMP_ENTITIES]);
FS_FreeFile (buf);
CM_InitBoxHull ();
memset (portalopen, 0, sizeof(portalopen));
FloodAreaConnections ();
strcpy (map_name, name);
return &map_cmodels[0];
}