tools/quake3/q3map2/convert_bsp.c

   1 /* -------------------------------------------------------------------------------
   2
   3    Copyright (C) 1999-2007 id Software, Inc. and contributors.
   4    For a list of contributors, see the accompanying CONTRIBUTORS file.
   5
   6    This file is part of GtkRadiant.
   7
   8    GtkRadiant is free software; you can redistribute it and/or modify
   9    it under the terms of the GNU General Public License as published by
  10    the Free Software Foundation; either version 2 of the License, or
  11    (at your option) any later version.
  12
  13    GtkRadiant is distributed in the hope that it will be useful,
  14    but WITHOUT ANY WARRANTY; without even the implied warranty of
  15    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16    GNU General Public License for more details.
  17
  18    You should have received a copy of the GNU General Public License
  19    along with GtkRadiant; if not, write to the Free Software
  20    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  21
  22    -------------------------------------------------------------------------------
  23
  24    This code has been altered significantly from its original form, to support
  25    several games based on the Quake III Arena engine, in the form of "Q3Map2."
  26
  27    ------------------------------------------------------------------------------- */
  28
  29
  30
  31 /* dependencies */
  32 #include "q3map2.h"
  33
  34
  35
  36 /*
  37    PseudoCompileBSP()
  38    a stripped down ProcessModels
  39  */
  40 void PseudoCompileBSP( qboolean need_tree ){
  41         int models;
  42         char modelValue[10];
  43         entity_t *entity;
  44         face_t *faces;
  45         tree_t *tree;
  46         node_t *node;
  47         brush_t *brush;
  48         side_t *side;
  49         int i;
  50
  51         SetDrawSurfacesBuffer();
  52         mapDrawSurfs = safe_malloc( sizeof( mapDrawSurface_t ) * MAX_MAP_DRAW_SURFS );
  53         memset( mapDrawSurfs, 0, sizeof( mapDrawSurface_t ) * MAX_MAP_DRAW_SURFS );
  54         numMapDrawSurfs = 0;
  55
  56         BeginBSPFile();
  57         models = 1;
  58         for ( mapEntityNum = 0; mapEntityNum < numEntities; mapEntityNum++ )
  59         {
  60                 /* get entity */
  61                 entity = &entities[ mapEntityNum ];
  62                 if ( entity->brushes == NULL && entity->patches == NULL ) {
  63                         continue;
  64                 }
  65
  66                 if ( mapEntityNum != 0 ) {
  67                         sprintf( modelValue, "*%d", models++ );
  68                         SetKeyValue( entity, "model", modelValue );
  69                 }
  70
  71                 /* process the model */
  72                 Sys_FPrintf( SYS_VRB, "############### model %i ###############\n", numBSPModels );
  73                 BeginModel();
  74
  75                 entity->firstDrawSurf = numMapDrawSurfs;
  76
  77                 ClearMetaTriangles();
  78                 PatchMapDrawSurfs( entity );
  79
  80                 if ( mapEntityNum == 0 && need_tree ) {
  81                         faces = MakeStructuralBSPFaceList( entities[0].brushes );
  82                         tree = FaceBSP( faces );
  83                         node = tree->headnode;
  84                 }
  85                 else
  86                 {
  87                         node = AllocNode();
  88                         node->planenum = PLANENUM_LEAF;
  89                         tree = AllocTree();
  90                         tree->headnode = node;
  91                 }
  92
  93                 /* a minimized ClipSidesIntoTree */
  94                 for ( brush = entity->brushes; brush; brush = brush->next )
  95                 {
  96                         /* walk the brush sides */
  97                         for ( i = 0; i < brush->numsides; i++ )
  98                         {
  99                                 /* get side */
 100                                 side = &brush->sides[ i ];
 101                                 if ( side->winding == NULL ) {
 102                                         continue;
 103                                 }
 104                                 /* shader? */
 105                                 if ( side->shaderInfo == NULL ) {
 106                                         continue;
 107                                 }
 108                                 /* save this winding as a visible surface */
 109                                 DrawSurfaceForSide( entity, brush, side, side->winding );
 110                         }
 111                 }
 112
 113                 if ( meta ) {
 114                         ClassifyEntitySurfaces( entity );
 115                         MakeEntityDecals( entity );
 116                         MakeEntityMetaTriangles( entity );
 117                         SmoothMetaTriangles();
 118                         MergeMetaTriangles();
 119                 }
 120                 FilterDrawsurfsIntoTree( entity, tree );
 121
 122                 FilterStructuralBrushesIntoTree( entity, tree );
 123                 FilterDetailBrushesIntoTree( entity, tree );
 124
 125                 EmitBrushes( entity->brushes, &entity->firstBrush, &entity->numBrushes );
 126                 EndModel( entity, node );
 127         }
 128         EndBSPFile( qfalse );
 129 }
 130
 131 /*
 132    ConvertBSPMain()
 133    main argument processing function for bsp conversion
 134  */
 135
 136 int ConvertBSPMain( int argc, char **argv ){
 137         int i;
 138         int ( *convertFunc )( char * );
 139         game_t  *convertGame;
 140         char ext[1024];
 141         qboolean map_allowed, force_bsp, force_map;
 142
 143
 144         /* set default */
 145         convertFunc = ConvertBSPToASE;
 146         convertGame = NULL;
 147         map_allowed = qfalse;
 148         force_bsp = qfalse;
 149         force_map = qfalse;
 150
 151         /* arg checking */
 152         if ( argc < 1 ) {
 153                 Sys_Printf( "Usage: q3map -convert [-format <ase|obj|map_bp|map>] [-shadersasbitmap|-lightmapsastexcoord|-deluxemapsastexcoord] [-readbsp|-readmap [-meta|-patchmeta]] [-v] <mapname>\n" );
 154                 return 0;
 155         }
 156
 157         /* process arguments */
 158         for ( i = 1; i < ( argc - 1 ); i++ )
 159         {
 160                 /* -format map|ase|... */
 161                 if ( !strcmp( argv[ i ],  "-format" ) ) {
 162                         i++;
 163                         if ( !Q_stricmp( argv[ i ], "ase" ) ) {
 164                                 convertFunc = ConvertBSPToASE;
 165                                 map_allowed = qfalse;
 166                         }
 167                         else if ( !Q_stricmp( argv[ i ], "obj" ) ) {
 168                                 convertFunc = ConvertBSPToOBJ;
 169                                 map_allowed = qfalse;
 170                         }
 171                         else if ( !Q_stricmp( argv[ i ], "map_bp" ) ) {
 172                                 convertFunc = ConvertBSPToMap_BP;
 173                                 map_allowed = qtrue;
 174                         }
 175                         else if ( !Q_stricmp( argv[ i ], "map" ) ) {
 176                                 convertFunc = ConvertBSPToMap;
 177                                 map_allowed = qtrue;
 178                         }
 179                         else
 180                         {
 181                                 convertGame = GetGame( argv[ i ] );
 182                                 map_allowed = qfalse;
 183                                 if ( convertGame == NULL ) {
 184                                         Sys_Printf( "Unknown conversion format \"%s\". Defaulting to ASE.\n", argv[ i ] );
 185                                 }
 186                         }
 187                 }
 188                 else if ( !strcmp( argv[ i ],  "-ne" ) ) {
 189                         normalEpsilon = atof( argv[ i + 1 ] );
 190                         i++;
 191                         Sys_Printf( "Normal epsilon set to %f\n", normalEpsilon );
 192                 }
 193                 else if ( !strcmp( argv[ i ],  "-de" ) ) {
 194                         distanceEpsilon = atof( argv[ i + 1 ] );
 195                         i++;
 196                         Sys_Printf( "Distance epsilon set to %f\n", distanceEpsilon );
 197                 }
 198                 else if ( !strcmp( argv[ i ],  "-shaderasbitmap" ) || !strcmp( argv[ i ],  "-shadersasbitmap" ) ) {
 199                         shadersAsBitmap = qtrue;
 200                 }
 201                 else if ( !strcmp( argv[ i ],  "-lightmapastexcoord" ) || !strcmp( argv[ i ],  "-lightmapsastexcoord" ) ) {
 202                         lightmapsAsTexcoord = qtrue;
 203                 }
 204                 else if ( !strcmp( argv[ i ],  "-deluxemapastexcoord" ) || !strcmp( argv[ i ],  "-deluxemapsastexcoord" ) ) {
 205                         lightmapsAsTexcoord = qtrue;
 206                         deluxemap = qtrue;
 207                 }
 208                 else if ( !strcmp( argv[ i ],  "-readbsp" ) ) {
 209                         force_bsp = qtrue;
 210                 }
 211                 else if ( !strcmp( argv[ i ],  "-readmap" ) ) {
 212                         force_map = qtrue;
 213                 }
 214                 else if ( !strcmp( argv[ i ],  "-meta" ) ) {
 215                         meta = qtrue;
 216                 }
 217                 else if ( !strcmp( argv[ i ],  "-patchmeta" ) ) {
 218                         meta = qtrue;
 219                         patchMeta = qtrue;
 220                 }
 221         }
 222
 223         LoadShaderInfo();
 224
 225         /* clean up map name */
 226         strcpy( source, ExpandArg( argv[i] ) );
 227         ExtractFileExtension( source, ext );
 228
 229         if ( !map_allowed && !force_map ) {
 230                 force_bsp = qtrue;
 231         }
 232
 233         if ( force_map || ( !force_bsp && !Q_stricmp( ext, "map" ) && map_allowed ) ) {
 234                 if ( !map_allowed ) {
 235                         Sys_Printf( "WARNING: the requested conversion should not be done from .map files. Compile a .bsp first.\n" );
 236                 }
 237                 StripExtension( source );
 238                 DefaultExtension( source, ".map" );
 239                 Sys_Printf( "Loading %s\n", source );
 240                 LoadMapFile( source, qfalse, convertGame == NULL );
 241                 PseudoCompileBSP( convertGame != NULL );
 242         }
 243         else
 244         {
 245                 StripExtension( source );
 246                 DefaultExtension( source, ".bsp" );
 247                 Sys_Printf( "Loading %s\n", source );
 248                 LoadBSPFile( source );
 249                 ParseEntities();
 250         }
 251
 252         /* bsp format convert? */
 253         if ( convertGame != NULL ) {
 254                 /* set global game */
 255                 game = convertGame;
 256
 257                 /* write bsp */
 258                 StripExtension( source );
 259                 DefaultExtension( source, "_c.bsp" );
 260                 Sys_Printf( "Writing %s\n", source );
 261                 WriteBSPFile( source );
 262
 263                 /* return to sender */
 264                 return 0;
 265         }
 266
 267         /* normal convert */
 268         return convertFunc( source );
 269 }