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, const char *BSPFilePath, const char *surfaceFilePath ){
  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_malloc0( sizeof( mapDrawSurface_t ) * MAX_MAP_DRAW_SURFS );
  53         numMapDrawSurfs = 0;
  54
  55         BeginBSPFile();
  56         models = 1;
  57         for ( mapEntityNum = 0; mapEntityNum < numEntities; mapEntityNum++ )
  58         {
  59                 /* get entity */
  60                 entity = &entities[ mapEntityNum ];
  61                 if ( entity->brushes == NULL && entity->patches == NULL ) {
  62                         continue;
  63                 }
  64
  65                 if ( mapEntityNum != 0 ) {
  66                         sprintf( modelValue, "*%d", models++ );
  67                         SetKeyValue( entity, "model", modelValue );
  68                 }
  69
  70                 /* process the model */
  71                 Sys_FPrintf( SYS_VRB, "############### model %i ###############\n", numBSPModels );
  72                 BeginModel();
  73
  74                 entity->firstDrawSurf = numMapDrawSurfs;
  75
  76                 ClearMetaTriangles();
  77                 PatchMapDrawSurfs( entity );
  78
  79                 if ( mapEntityNum == 0 && need_tree ) {
  80                         faces = MakeStructuralBSPFaceList( entities[0].brushes );
  81                         tree = FaceBSP( faces );
  82                         node = tree->headnode;
  83                 }
  84                 else
  85                 {
  86                         node = AllocNode();
  87                         node->planenum = PLANENUM_LEAF;
  88                         tree = AllocTree();
  89                         tree->headnode = node;
  90                 }
  91
  92                 /* a minimized ClipSidesIntoTree */
  93                 for ( brush = entity->brushes; brush; brush = brush->next )
  94                 {
  95                         /* walk the brush sides */
  96                         for ( i = 0; i < brush->numsides; i++ )
  97                         {
  98                                 /* get side */
  99                                 side = &brush->sides[ i ];
 100                                 if ( side->winding == NULL ) {
 101                                         continue;
 102                                 }
 103                                 /* shader? */
 104                                 if ( side->shaderInfo == NULL ) {
 105                                         continue;
 106                                 }
 107                                 /* save this winding as a visible surface */
 108                                 DrawSurfaceForSide( entity, brush, side, side->winding );
 109                         }
 110                 }
 111
 112                 if ( meta ) {
 113                         ClassifyEntitySurfaces( entity );
 114                         MakeEntityDecals( entity );
 115                         MakeEntityMetaTriangles( entity );
 116                         SmoothMetaTriangles();
 117                         MergeMetaTriangles();
 118                 }
 119                 FilterDrawsurfsIntoTree( entity, tree );
 120
 121                 FilterStructuralBrushesIntoTree( entity, tree );
 122                 FilterDetailBrushesIntoTree( entity, tree );
 123
 124                 EmitBrushes( entity->brushes, &entity->firstBrush, &entity->numBrushes );
 125                 EndModel( entity, node );
 126         }
 127         EndBSPFile( qfalse, BSPFilePath, surfaceFilePath );
 128 }
 129
 130 /*
 131    ConvertBSPMain()
 132    main argument processing function for bsp conversion
 133  */
 134
 135 int ConvertBSPMain( int argc, char **argv ){
 136         int i;
 137         int ( *convertFunc )( char * );
 138         game_t  *convertGame;
 139         char ext[1024];
 140         char BSPFilePath [ 1024 ];
 141         char surfaceFilePath [ 1024 ];
 142         qboolean map_allowed, force_bsp, force_map;
 143
 144
 145         /* set default */
 146         convertFunc = ConvertBSPToASE;
 147         convertGame = NULL;
 148         map_allowed = qfalse;
 149         force_bsp = qfalse;
 150         force_map = qfalse;
 151
 152         /* arg checking */
 153         if ( argc < 2 ) {
 154                 Sys_Printf( "Usage: q3map -convert [-format <ase|obj|map_bp|map>] [-shadersasbitmap|-lightmapsastexcoord|-deluxemapsastexcoord] [-readbsp|-readmap [-meta|-patchmeta]] [-v] <mapname>\n" );
 155                 return 0;
 156         }
 157
 158         /* process arguments */
 159         for ( i = 1; i < ( argc - 1 ); i++ )
 160         {
 161                 /* -format map|ase|... */
 162                 if ( !strcmp( argv[ i ],  "-format" ) ) {
 163                         i++;
 164                         if ( !Q_stricmp( argv[ i ], "ase" ) ) {
 165                                 convertFunc = ConvertBSPToASE;
 166                                 map_allowed = qfalse;
 167                         }
 168                         else if ( !Q_stricmp( argv[ i ], "obj" ) ) {
 169                                 convertFunc = ConvertBSPToOBJ;
 170                                 map_allowed = qfalse;
 171                         }
 172                         else if ( !Q_stricmp( argv[ i ], "map_bp" ) ) {
 173                                 convertFunc = ConvertBSPToMap_BP;
 174                                 map_allowed = qtrue;
 175                         }
 176                         else if ( !Q_stricmp( argv[ i ], "map" ) ) {
 177                                 convertFunc = ConvertBSPToMap;
 178                                 map_allowed = qtrue;
 179                         }
 180                         else
 181                         {
 182                                 convertGame = GetGame( argv[ i ] );
 183                                 map_allowed = qfalse;
 184                                 if ( convertGame == NULL ) {
 185                                         Sys_FPrintf( SYS_WRN, "Unknown conversion format \"%s\". Defaulting to ASE.\n", argv[ i ] );
 186                                 }
 187                         }
 188                 }
 189                 else if ( !strcmp( argv[ i ],  "-ne" ) ) {
 190                         normalEpsilon = atof( argv[ i + 1 ] );
 191                         i++;
 192                         Sys_Printf( "Normal epsilon set to %f\n", normalEpsilon );
 193                 }
 194                 else if ( !strcmp( argv[ i ],  "-de" ) ) {
 195                         distanceEpsilon = atof( argv[ i + 1 ] );
 196                         i++;
 197                         Sys_Printf( "Distance epsilon set to %f\n", distanceEpsilon );
 198                 }
 199                 else if ( !strcmp( argv[ i ],  "-shaderasbitmap" ) || !strcmp( argv[ i ],  "-shadersasbitmap" ) ) {
 200                         shadersAsBitmap = qtrue;
 201                 }
 202                 else if ( !strcmp( argv[ i ],  "-lightmapastexcoord" ) || !strcmp( argv[ i ],  "-lightmapsastexcoord" ) ) {
 203                         lightmapsAsTexcoord = qtrue;
 204                 }
 205                 else if ( !strcmp( argv[ i ],  "-deluxemapastexcoord" ) || !strcmp( argv[ i ],  "-deluxemapsastexcoord" ) ) {
 206                         lightmapsAsTexcoord = qtrue;
 207                         deluxemap = qtrue;
 208                 }
 209                 else if ( !strcmp( argv[ i ],  "-readbsp" ) ) {
 210                         force_bsp = qtrue;
 211                 }
 212                 else if ( !strcmp( argv[ i ],  "-readmap" ) ) {
 213                         force_map = qtrue;
 214                 }
 215                 else if ( !strcmp( argv[ i ],  "-meta" ) ) {
 216                         meta = qtrue;
 217                 }
 218                 else if ( !strcmp( argv[ i ],  "-patchmeta" ) ) {
 219                         meta = qtrue;
 220                         patchMeta = qtrue;
 221                 }
 222         }
 223
 224         LoadShaderInfo();
 225
 226         /* clean up map name */
 227         strcpy( source, ExpandArg( argv[i] ) );
 228         ExtractFileExtension( source, ext );
 229
 230         if ( !map_allowed && !force_map ) {
 231                 force_bsp = qtrue;
 232         }
 233
 234         if ( force_map || ( !force_bsp && !Q_stricmp( ext, "map" ) && map_allowed ) ) {
 235                 if ( !map_allowed ) {
 236                         Sys_FPrintf( SYS_WRN, "WARNING: the requested conversion should not be done from .map files. Compile a .bsp first.\n" );
 237                 }
 238                 StripExtension( source );
 239                 DefaultExtension( source, ".map" );
 240                 Sys_Printf( "Loading %s\n", source );
 241                 LoadMapFile( source, qfalse, convertGame == NULL );
 242                 sprintf( BSPFilePath, "%s.bsp", source );
 243                 sprintf( surfaceFilePath, "%s.srf", source );
 244                 PseudoCompileBSP( convertGame != NULL, BSPFilePath, surfaceFilePath );
 245         }
 246         else
 247         {
 248                 StripExtension( source );
 249                 DefaultExtension( source, ".bsp" );
 250                 Sys_Printf( "Loading %s\n", source );
 251                 LoadBSPFile( source );
 252                 ParseEntities();
 253         }
 254
 255         /* bsp format convert? */
 256         if ( convertGame != NULL ) {
 257                 /* set global game */
 258                 game = convertGame;
 259
 260                 /* write bsp */
 261                 StripExtension( source );
 262                 DefaultExtension( source, "_c.bsp" );
 263                 Sys_Printf( "Writing %s\n", source );
 264                 WriteBSPFile( source );
 265
 266                 /* return to sender */
 267                 return 0;
 268         }
 269
 270         /* normal convert */
 271         return convertFunc( source );
 272 }