source/blender/blenkernel/intern/world.c

   1
   2 /*  world.c
   3  *
   4  *
   5  * $Id$
   6  *
   7  * ***** BEGIN GPL LICENSE BLOCK *****
   8  *
   9  * This program is free software; you can redistribute it and/or
  10  * modify it under the terms of the GNU General Public License
  11  * as published by the Free Software Foundation; either version 2
  12  * of the License, or (at your option) any later version.
  13  *
  14  * This program is distributed in the hope that it will be useful,
  15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17  * GNU General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU General Public License
  20  * along with this program; if not, write to the Free Software Foundation,
  21  * Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  22  *
  23  * The Original Code is Copyright (C) 2001-2002 by NaN Holding BV.
  24  * All rights reserved.
  25  *
  26  * The Original Code is: all of this file.
  27  *
  28  * Contributor(s): none yet.
  29  *
  30  * ***** END GPL LICENSE BLOCK *****
  31  */
  32
  33 #include <string.h>
  34 #include <math.h>
  35 #include "MEM_guardedalloc.h"
  36
  37 #include "DNA_world_types.h"
  38 #include "DNA_texture_types.h"
  39 #include "DNA_scriptlink_types.h"
  40 #include "DNA_scene_types.h"
  41 #include "DNA_object_types.h"
  42 #include "DNA_camera_types.h"
  43
  44
  45 #include "BLI_blenlib.h"
  46 #include "BLI_arithb.h"
  47
  48 #include "BKE_utildefines.h"
  49
  50 #include "BKE_library.h"
  51 #include "BKE_animsys.h"
  52 #include "BKE_world.h"
  53 #include "BKE_global.h"
  54 #include "BKE_main.h"
  55 #include "BKE_icons.h"
  56
  57 #ifndef DISABLE_PYTHON
  58 #include "BPY_extern.h"
  59 #endif
  60
  61 #ifdef HAVE_CONFIG_H
  62 #include <config.h>
  63 #endif
  64
  65 void free_world(World *wrld)
  66 {
  67         MTex *mtex;
  68         int a;
  69
  70 #ifndef DISABLE_PYTHON
  71         BPY_free_scriptlink(&wrld->scriptlink);
  72 #endif
  73         for(a=0; a<MAX_MTEX; a++) {
  74                 mtex= wrld->mtex[a];
  75                 if(mtex && mtex->tex) mtex->tex->id.us--;
  76                 if(mtex) MEM_freeN(mtex);
  77         }
  78         BKE_previewimg_free(&wrld->preview);
  79
  80         BKE_free_animdata((ID *)wrld);
  81
  82         BKE_icon_delete((struct ID*)wrld);
  83         wrld->id.icon_id = 0;
  84 }
  85
  86
  87 World *add_world(char *name)
  88 {
  89         World *wrld;
  90
  91         wrld= alloc_libblock(&G.main->world, ID_WO, name);
  92
  93         wrld->horb= 0.6f;
  94         wrld->skytype= WO_SKYBLEND;
  95         wrld->stardist= 15.0f;
  96         wrld->starsize= 2.0f;
  97
  98         wrld->exp= 0.0f;
  99         wrld->exposure=wrld->range= 1.0f;
 100
 101         wrld->aodist= 5.0f;
 102         wrld->aosamp= 5;
 103         wrld->aoenergy= 1.0f;
 104         wrld->aobias= 0.05f;
 105         wrld->ao_samp_method = WO_AOSAMP_HAMMERSLEY;
 106         wrld->ao_approx_error= 0.25f;
 107
 108         wrld->preview = NULL;
 109
 110         return wrld;
 111 }
 112
 113 World *copy_world(World *wrld)
 114 {
 115         World *wrldn;
 116         int a;
 117
 118         wrldn= copy_libblock(wrld);
 119
 120         for(a=0; a<MAX_MTEX; a++) {
 121                 if(wrld->mtex[a]) {
 122                         wrldn->mtex[a]= MEM_mallocN(sizeof(MTex), "copymaterial");
 123                         memcpy(wrldn->mtex[a], wrld->mtex[a], sizeof(MTex));
 124                         id_us_plus((ID *)wrldn->mtex[a]->tex);
 125                 }
 126         }
 127
 128         if (wrld->preview) wrldn->preview = BKE_previewimg_copy(wrld->preview);
 129 #ifndef DISABLE_PYTHON
 130         BPY_copy_scriptlink(&wrld->scriptlink);
 131 #endif
 132
 133 #if 0 // XXX old animation system
 134         id_us_plus((ID *)wrldn->ipo);
 135 #endif // XXX old animation system
 136
 137         return wrldn;
 138 }
 139
 140 void make_local_world(World *wrld)
 141 {
 142         Scene *sce;
 143         World *wrldn;
 144         int local=0, lib=0;
 145
 146         /* - only lib users: do nothing
 147             * - only local users: set flag
 148             * - mixed: make copy
 149             */
 150
 151         if(wrld->id.lib==0) return;
 152         if(wrld->id.us==1) {
 153                 wrld->id.lib= 0;
 154                 wrld->id.flag= LIB_LOCAL;
 155                 new_id(0, (ID *)wrld, 0);
 156                 return;
 157         }
 158
 159         sce= G.main->scene.first;
 160         while(sce) {
 161                 if(sce->world==wrld) {
 162                         if(sce->id.lib) lib= 1;
 163                         else local= 1;
 164                 }
 165                 sce= sce->id.next;
 166         }
 167
 168         if(local && lib==0) {
 169                 wrld->id.lib= 0;
 170                 wrld->id.flag= LIB_LOCAL;
 171                 new_id(0, (ID *)wrld, 0);
 172         }
 173         else if(local && lib) {
 174                 wrldn= copy_world(wrld);
 175                 wrldn->id.us= 0;
 176
 177                 sce= G.main->scene.first;
 178                 while(sce) {
 179                         if(sce->world==wrld) {
 180                                 if(sce->id.lib==0) {
 181                                         sce->world= wrldn;
 182                                         wrldn->id.us++;
 183                                         wrld->id.us--;
 184                                 }
 185                         }
 186                         sce= sce->id.next;
 187                 }
 188         }
 189 }