source/blender/blenloader/intern/readfile.c

   1 /*
   2  * $Id$
   3  *
   4  * ***** BEGIN GPL LICENSE BLOCK *****
   5  *
   6  * This program is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU General Public License
   8  * as published by the Free Software Foundation; either version 2
   9  * of the License, or (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, write to the Free Software Foundation,
  18  * Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  19  *
  20  * The Original Code is Copyright (C) 2001-2002 by NaN Holding BV.
  21  * All rights reserved.
  22  *
  23  * The Original Code is: all of this file.
  24  *
  25  * Contributor(s): none yet.
  26  *
  27  * ***** END GPL LICENSE BLOCK *****
  28  *
  29  */
  30
  31 #ifdef HAVE_CONFIG_H
  32 #include <config.h>
  33 #endif
  34
  35 #include "zlib.h"
  36
  37 #ifdef WIN32
  38 #include "winsock2.h"
  39 #include "BLI_winstuff.h"
  40 #endif
  41
  42 #include <limits.h>
  43 #include <stdio.h> // for printf fopen fwrite fclose sprintf FILE
  44 #include <stdlib.h> // for getenv atoi
  45 #include <fcntl.h> // for open
  46 #include <string.h> // for strrchr strncmp strstr
  47 #include <math.h> // for fabs
  48
  49 #ifndef WIN32
  50     #include <unistd.h> // for read close
  51     #include <sys/param.h> // for MAXPATHLEN
  52 #else
  53     #include <io.h> // for open close read
  54 #endif
  55
  56 #include "nla.h"
  57
  58 #include "DNA_action_types.h"
  59 #include "DNA_armature_types.h"
  60 #include "DNA_ID.h"
  61 #include "DNA_actuator_types.h"
  62 #include "DNA_brush_types.h"
  63 #include "DNA_camera_types.h"
  64 #include "DNA_cloth_types.h"
  65 #include "DNA_color_types.h"
  66 #include "DNA_controller_types.h"
  67 #include "DNA_constraint_types.h"
  68 #include "DNA_curve_types.h"
  69 #include "DNA_customdata_types.h"
  70 #include "DNA_effect_types.h"
  71 #include "DNA_fileglobal_types.h"
  72 #include "DNA_group_types.h"
  73 #include "DNA_gpencil_types.h"
  74 #include "DNA_ipo_types.h"
  75 #include "DNA_image_types.h"
  76 #include "DNA_key_types.h"
  77 #include "DNA_lattice_types.h"
  78 #include "DNA_lamp_types.h"
  79 #include "DNA_meta_types.h"
  80 #include "DNA_material_types.h"
  81 #include "DNA_mesh_types.h"
  82 #include "DNA_meshdata_types.h"
  83 #include "DNA_modifier_types.h"
  84 #include "DNA_nla_types.h"
  85 #include "DNA_node_types.h"
  86 #include "DNA_object_types.h"
  87 #include "DNA_object_force.h"
  88 #include "DNA_object_fluidsim.h" // NT
  89 #include "DNA_oops_types.h"
  90 #include "DNA_object_force.h"
  91 #include "DNA_packedFile_types.h"
  92 #include "DNA_particle_types.h"
  93 #include "DNA_property_types.h"
  94 #include "DNA_text_types.h"
  95 #include "DNA_view3d_types.h"
  96 #include "DNA_screen_types.h"
  97 #include "DNA_sensor_types.h"
  98 #include "DNA_sdna_types.h"
  99 #include "DNA_scene_types.h"
 100 #include "DNA_sequence_types.h"
 101 #include "DNA_sound_types.h"
 102 #include "DNA_space_types.h"
 103 #include "DNA_texture_types.h"
 104 #include "DNA_userdef_types.h"
 105 #include "DNA_vfont_types.h"
 106 #include "DNA_world_types.h"
 107
 108 #include "MEM_guardedalloc.h"
 109 #include "BLI_blenlib.h"
 110 #include "BLI_arithb.h"
 111 #include "BLI_storage_types.h" // for relname flags
 112
 113 #include "BDR_sculptmode.h"
 114
 115 #include "BKE_bad_level_calls.h" // for reopen_text build_seqar (from WHILE_SEQ) set_rects_butspace check_imasel_copy
 116
 117 #include "BKE_action.h"
 118 #include "BKE_armature.h"
 119 #include "BKE_cloth.h"
 120 #include "BKE_colortools.h"
 121 #include "BKE_constraint.h"
 122 #include "BKE_curve.h"
 123 #include "BKE_customdata.h"
 124 #include "BKE_deform.h"
 125 #include "BKE_depsgraph.h"
 126 #include "BKE_effect.h" /* give_parteff */
 127 #include "BKE_global.h" // for G
 128 #include "BKE_group.h"
 129 #include "BKE_image.h"
 130 #include "BKE_key.h" //void set_four_ipo
 131 #include "BKE_lattice.h"
 132 #include "BKE_library.h" // for wich_libbase
 133 #include "BKE_main.h" // for Main
 134 #include "BKE_mesh.h" // for ME_ defines (patching)
 135 #include "BKE_modifier.h"
 136 #include "BKE_node.h" // for tree type defines
 137 #include "BKE_object.h"
 138 #include "BKE_particle.h"
 139 #include "BKE_pointcache.h"
 140 #include "BKE_property.h" // for get_ob_property
 141 #include "BKE_sca.h" // for init_actuator
 142 #include "BKE_scene.h"
 143 #include "BKE_softbody.h"       // sbNew()
 144 #include "BKE_bullet.h"         // bsbNew()
 145 #include "BKE_sculpt.h"
 146 #include "BKE_texture.h" // for open_plugin_tex
 147 #include "BKE_utildefines.h" // SWITCH_INT DATA ENDB DNA1 O_BINARY GLOB USER TEST REND
 148 #include "BKE_idprop.h"
 149
 150 #include "BIF_butspace.h" // badlevel, for do_versions, patching event codes
 151 #include "BIF_filelist.h" // badlevel too, where to move this? - elubie
 152 #include "BIF_previewrender.h" // bedlelvel, for struct RenderInfo
 153 #include "BLO_readfile.h"
 154 #include "BLO_undofile.h"
 155 #include "BLO_readblenfile.h" // streaming read pipe, for BLO_readblenfile BLO_readblenfilememory
 156
 157 #include "readfile.h"
 158
 159 #include "genfile.h"
 160
 161 #include "mydevice.h"
 162 #include "blendef.h"
 163
 164 #include <errno.h>
 165
 166 /*
 167  Remark: still a weak point is the newadress() function, that doesnt solve reading from
 168  multiple files at the same time
 169
 170  (added remark: oh, i thought that was solved? will look at that... (ton)
 171
 172 READ
 173 - Existing Library (Main) push or free
 174 - allocate new Main
 175 - load file
 176 - read SDNA
 177 - for each LibBlock
 178         - read LibBlock
 179         - if a Library
 180                 - make a new Main
 181                 - attach ID's to it
 182         - else
 183                 - read associated 'direct data'
 184                 - link direct data (internal and to LibBlock)
 185 - read FileGlobal
 186 - read USER data, only when indicated (file is ~/.B.blend)
 187 - free file
 188 - per Library (per Main)
 189         - read file
 190         - read SDNA
 191         - find LibBlocks and attach IDs to Main
 192                 - if external LibBlock
 193                         - search all Main's
 194                                 - or it's already read,
 195                                 - or not read yet
 196                                 - or make new Main
 197         - per LibBlock
 198                 - read recursive
 199                 - read associated direct data
 200                 - link direct data (internal and to LibBlock)
 201         - free file
 202 - per Library with unread LibBlocks
 203         - read file
 204         - read SDNA
 205         - per LibBlock
 206                - read recursive
 207                - read associated direct data
 208                - link direct data (internal and to LibBlock)
 209         - free file
 210 - join all Mains
 211 - link all LibBlocks and indirect pointers to libblocks
 212 - initialize FileGlobal and copy pointers to Global
 213 */
 214
 215 /* also occurs in library.c */
 216 /* GS reads the memory pointed at in a specific ordering. There are,
 217  * however two definitions for it. I have jotted them down here, both,
 218  * but I think the first one is actually used. The thing is that
 219  * big-endian systems might read this the wrong way round. OTOH, we
 220  * constructed the IDs that are read out with this macro explicitly as
 221  * well. I expect we'll sort it out soon... */
 222
 223 /* from blendef: */
 224 #define GS(a)   (*((short *)(a)))
 225
 226 /* from misc_util: flip the bytes from x  */
 227 /*  #define GS(x) (((unsigned char *)(x))[0] << 8 | ((unsigned char *)(x))[1]) */
 228
 229 // only used here in readfile.c
 230 #define SWITCH_LONGINT(a) { \
 231     char s_i, *p_i; \
 232     p_i= (char *)&(a);  \
 233     s_i=p_i[0]; p_i[0]=p_i[7]; p_i[7]=s_i; \
 234     s_i=p_i[1]; p_i[1]=p_i[6]; p_i[6]=s_i; \
 235     s_i=p_i[2]; p_i[2]=p_i[5]; p_i[5]=s_i; \
 236     s_i=p_i[3]; p_i[3]=p_i[4]; p_i[4]=s_i; }
 237
 238 /***/
 239
 240 typedef struct OldNew {
 241         void *old, *newp;
 242         int nr;
 243 } OldNew;
 244
 245 typedef struct OldNewMap {
 246         OldNew *entries;
 247         int nentries, entriessize;
 248         int sorted;
 249         int lasthit;
 250 } OldNewMap;
 251
 252
 253 /* local prototypes */
 254 static void *read_struct(FileData *fd, BHead *bh, char *blockname);
 255
 256
 257 static OldNewMap *oldnewmap_new(void)
 258 {
 259         OldNewMap *onm= MEM_callocN(sizeof(*onm), "OldNewMap");
 260
 261         onm->entriessize= 1024;
 262         onm->entries= MEM_mallocN(sizeof(*onm->entries)*onm->entriessize, "OldNewMap.entries");
 263
 264         return onm;
 265 }
 266
 267 static int verg_oldnewmap(const void *v1, const void *v2)
 268 {
 269         const struct OldNew *x1=v1, *x2=v2;
 270
 271         if( x1->old > x2->old) return 1;
 272         else if( x1->old < x2->old) return -1;
 273         return 0;
 274 }
 275
 276
 277 static void oldnewmap_sort(FileData *fd)
 278 {
 279         qsort(fd->libmap->entries, fd->libmap->nentries, sizeof(OldNew), verg_oldnewmap);
 280         fd->libmap->sorted= 1;
 281 }
 282
 283 /* nr is zero for data, and ID code for libdata */
 284 static void oldnewmap_insert(OldNewMap *onm, void *oldaddr, void *newaddr, int nr)
 285 {
 286         OldNew *entry;
 287
 288         if(oldaddr==NULL || newaddr==NULL) return;
 289
 290         if (onm->nentries==onm->entriessize) {
 291                 int osize= onm->entriessize;
 292                 OldNew *oentries= onm->entries;
 293
 294                 onm->entriessize*= 2;
 295                 onm->entries= MEM_mallocN(sizeof(*onm->entries)*onm->entriessize, "OldNewMap.entries");
 296
 297                 memcpy(onm->entries, oentries, sizeof(*oentries)*osize);
 298                 MEM_freeN(oentries);
 299         }
 300
 301         entry= &onm->entries[onm->nentries++];
 302         entry->old= oldaddr;
 303         entry->newp= newaddr;
 304         entry->nr= nr;
 305 }
 306
 307 static void *oldnewmap_lookup_and_inc(OldNewMap *onm, void *addr)
 308 {
 309         int i;
 310
 311         if (onm->lasthit<onm->nentries-1) {
 312                 OldNew *entry= &onm->entries[++onm->lasthit];
 313
 314                 if (entry->old==addr) {
 315                         entry->nr++;
 316                         return entry->newp;
 317                 }
 318         }
 319
 320         for (i=0; i<onm->nentries; i++) {
 321                 OldNew *entry= &onm->entries[i];
 322
 323                 if (entry->old==addr) {
 324                         onm->lasthit= i;
 325
 326                         entry->nr++;
 327                         return entry->newp;
 328                 }
 329         }
 330
 331         return NULL;
 332 }
 333
 334 /* for libdata, nr has ID code, no increment */
 335 static void *oldnewmap_liblookup(OldNewMap *onm, void *addr, void *lib)
 336 {
 337         int i;
 338
 339         if(addr==NULL) return NULL;
 340
 341         /* lasthit works fine for non-libdata, linking there is done in same sequence as writing */
 342         if(onm->sorted) {
 343                 OldNew entry_s, *entry;
 344
 345                 entry_s.old= addr;
 346
 347                 entry= bsearch(&entry_s, onm->entries, onm->nentries, sizeof(OldNew), verg_oldnewmap);
 348                 if(entry) {
 349                         ID *id= entry->newp;
 350
 351                         if (id && (!lib || id->lib)) {
 352                                 return entry->newp;
 353                         }
 354                 }
 355         }
 356
 357         for (i=0; i<onm->nentries; i++) {
 358                 OldNew *entry= &onm->entries[i];
 359
 360                 if (entry->old==addr) {
 361                         ID *id= entry->newp;
 362
 363                         if (id && (!lib || id->lib)) {
 364                                 return entry->newp;
 365                         }
 366                 }
 367         }
 368
 369         return NULL;
 370 }
 371
 372 static void oldnewmap_free_unused(OldNewMap *onm)
 373 {
 374         int i;
 375
 376         for (i=0; i<onm->nentries; i++) {
 377                 OldNew *entry= &onm->entries[i];
 378                 if (entry->nr==0) {
 379                         MEM_freeN(entry->newp);
 380                         entry->newp= NULL;
 381                 }
 382         }
 383 }
 384
 385 static void oldnewmap_clear(OldNewMap *onm)
 386 {
 387         onm->nentries= 0;
 388         onm->lasthit= 0;
 389 }
 390
 391 static void oldnewmap_free(OldNewMap *onm)
 392 {
 393         MEM_freeN(onm->entries);
 394         MEM_freeN(onm);
 395 }
 396
 397 /***/
 398
 399 static void read_libraries(FileData *basefd, ListBase *mainlist);
 400
 401 /* ************ help functions ***************** */
 402
 403 static void add_main_to_main(Main *mainvar, Main *from)
 404 {
 405         ListBase *lbarray[MAX_LIBARRAY], *fromarray[MAX_LIBARRAY];
 406         int a;
 407
 408         a= set_listbasepointers(mainvar, lbarray);
 409         a= set_listbasepointers(from, fromarray);
 410         while(a--) {
 411                 addlisttolist(lbarray[a], fromarray[a]);
 412         }
 413 }
 414
 415 void blo_join_main(ListBase *mainlist)
 416 {
 417         Main *tojoin, *mainl;
 418
 419
 420         mainl= mainlist->first;
 421         while ((tojoin= mainl->next)) {
 422                 add_main_to_main(mainl, tojoin);
 423                 BLI_remlink(mainlist, tojoin);
 424                 MEM_freeN(tojoin);
 425         }
 426 }
 427
 428 static void split_libdata(ListBase *lb, Main *first)
 429 {
 430         ListBase *lbn;
 431         ID *id, *idnext;
 432         Main *mainvar;
 433
 434         id= lb->first;
 435         while(id) {
 436                 idnext= id->next;
 437                 if(id->lib) {
 438                         mainvar= first;
 439                         while(mainvar) {
 440                                 if(mainvar->curlib==id->lib) {
 441                                         lbn= wich_libbase(mainvar, GS(id->name));
 442                                         BLI_remlink(lb, id);
 443                                         BLI_addtail(lbn, id);
 444                                         break;
 445                                 }
 446                                 mainvar= mainvar->next;
 447                         }
 448                         if(mainvar==0) printf("error split_libdata\n");
 449                 }
 450                 id= idnext;
 451         }
 452 }
 453
 454 void blo_split_main(ListBase *mainlist, Main *main)
 455 {
 456         ListBase *lbarray[MAX_LIBARRAY];
 457         Library *lib;
 458         int i;
 459
 460         mainlist->first= mainlist->last= main;
 461         main->next= NULL;
 462
 463         if(main->library.first==NULL)
 464                 return;
 465
 466         for (lib= main->library.first; lib; lib= lib->id.next) {
 467                 Main *libmain= MEM_callocN(sizeof(Main), "libmain");
 468                 libmain->curlib= lib;
 469                 BLI_addtail(mainlist, libmain);
 470         }
 471
 472         i= set_listbasepointers(main, lbarray);
 473         while(i--)
 474                 split_libdata(lbarray[i], main->next);
 475 }
 476
 477 /* removes things like /blah/blah/../../blah/ etc, then writes in *name the full path */
 478 static void cleanup_path(const char *relabase, char *name)
 479 {
 480         char filename[FILE_MAXFILE];
 481
 482         BLI_splitdirstring(name, filename);
 483         BLI_cleanup_dir(relabase, name);
 484         strcat(name, filename);
 485 }
 486
 487 static void read_file_version(FileData *fd, Main *main)
 488 {
 489         BHead *bhead;
 490
 491         for (bhead= blo_firstbhead(fd); bhead; bhead= blo_nextbhead(fd, bhead)) {
 492                 if (bhead->code==GLOB) {
 493                         FileGlobal *fg= read_struct(fd, bhead, "Global");
 494                         if(fg) {
 495                                 main->subversionfile= fg->subversion;
 496                                 main->minversionfile= fg->minversion;
 497                                 main->minsubversionfile= fg->minsubversion;
 498                                 MEM_freeN(fg);
 499                         }
 500                         else if (bhead->code==ENDB)
 501                                 break;
 502                 }
 503         }
 504 }
 505
 506
 507 static Main *blo_find_main(FileData *fd, ListBase *mainlist, const char *name, const char *relabase)
 508 {
 509         Main *m;
 510         Library *lib;
 511         char name1[FILE_MAXDIR+FILE_MAXFILE];
 512
 513         strncpy(name1, name, sizeof(name1)-1);
 514         cleanup_path(relabase, name1);
 515 //      printf("blo_find_main: original in  %s\n", name);
 516 //      printf("blo_find_main: converted to %s\n", name1);
 517
 518         for (m= mainlist->first; m; m= m->next) {
 519                 char *libname= (m->curlib)?m->curlib->filename:m->name;
 520
 521                 if (BLI_streq(name1, libname)) {
 522                         if(G.f & G_DEBUG) printf("blo_find_main: found library %s\n", libname);
 523                         return m;
 524                 }
 525         }
 526
 527         m= MEM_callocN(sizeof(Main), "find_main");
 528         BLI_addtail(mainlist, m);
 529
 530         lib= alloc_libblock(&m->library, ID_LI, "lib");
 531         strncpy(lib->name, name, sizeof(lib->name)-1);
 532         BLI_strncpy(lib->filename, name1, sizeof(lib->filename));
 533
 534         m->curlib= lib;
 535
 536         read_file_version(fd, m);
 537
 538         if(G.f & G_DEBUG) printf("blo_find_main: added new lib %s\n", name);
 539         return m;
 540 }
 541
 542
 543 /* ************ FILE PARSING ****************** */
 544
 545 static void switch_endian_bh4(BHead4 *bhead)
 546 {
 547         /* the ID_.. codes */
 548         if((bhead->code & 0xFFFF)==0) bhead->code >>=16;
 549
 550         if (bhead->code != ENDB) {
 551                 SWITCH_INT(bhead->len);
 552                 SWITCH_INT(bhead->SDNAnr);
 553                 SWITCH_INT(bhead->nr);
 554         }
 555 }
 556
 557 static void switch_endian_bh8(BHead8 *bhead)
 558 {
 559         /* the ID_.. codes */
 560         if((bhead->code & 0xFFFF)==0) bhead->code >>=16;
 561
 562         if (bhead->code != ENDB) {
 563                 SWITCH_INT(bhead->len);
 564                 SWITCH_INT(bhead->SDNAnr);
 565                 SWITCH_INT(bhead->nr);
 566         }
 567 }
 568
 569 static void bh4_from_bh8(BHead *bhead, BHead8 *bhead8, int do_endian_swap)
 570 {
 571         BHead4 *bhead4 = (BHead4 *) bhead;
 572 #if defined(WIN32) && !defined(FREE_WINDOWS)
 573         __int64 old;
 574 #else
 575         long long old;
 576 #endif
 577
 578         bhead4->code= bhead8->code;
 579         bhead4->len= bhead8->len;
 580
 581         if (bhead4->code != ENDB) {
 582
 583                 // why is this here ??
 584                 if (do_endian_swap) {
 585                         SWITCH_LONGINT(bhead8->old);
 586                 }
 587
 588                 /* this patch is to avoid a long long being read from not-eight aligned positions
 589                    is necessary on any modern 64bit architecture) */
 590                 memcpy(&old, &bhead8->old, 8);
 591                 bhead4->old = (int) (old >> 3);
 592
 593                 bhead4->SDNAnr= bhead8->SDNAnr;
 594                 bhead4->nr= bhead8->nr;
 595         }
 596 }
 597
 598 static void bh8_from_bh4(BHead *bhead, BHead4 *bhead4)
 599 {
 600         BHead8 *bhead8 = (BHead8 *) bhead;
 601
 602         bhead8->code= bhead4->code;
 603         bhead8->len= bhead4->len;
 604
 605         if (bhead8->code != ENDB) {
 606                 bhead8->old= bhead4->old;
 607                 bhead8->SDNAnr= bhead4->SDNAnr;
 608                 bhead8->nr= bhead4->nr;
 609         }
 610 }
 611
 612 static BHeadN *get_bhead(FileData *fd)
 613 {
 614         BHead8 bhead8;
 615         BHead4 bhead4;
 616         BHead  bhead;
 617         BHeadN *new_bhead = 0;
 618         int readsize;
 619
 620         if (fd) {
 621                 if ( ! fd->eof) {
 622
 623                         // First read the bhead structure.
 624                         // Depending on the platform the file was written on this can
 625                         // be a big or little endian BHead4 or BHead8 structure.
 626
 627                         // As usual 'ENDB' (the last *partial* bhead of the file)
 628                         // needs some special handling. We don't want to EOF just yet.
 629
 630                         if (fd->flags & FD_FLAGS_FILE_POINTSIZE_IS_4) {
 631                                 bhead4.code = DATA;
 632                                 readsize = fd->read(fd, &bhead4, sizeof(bhead4));
 633
 634                                 if (readsize == sizeof(bhead4) || bhead4.code == ENDB) {
 635                                         if (fd->flags & FD_FLAGS_SWITCH_ENDIAN) {
 636                                                 switch_endian_bh4(&bhead4);
 637                                         }
 638
 639                                         if (fd->flags & FD_FLAGS_POINTSIZE_DIFFERS) {
 640                                                 bh8_from_bh4(&bhead, &bhead4);
 641                                         } else {
 642                                                 memcpy(&bhead, &bhead4, sizeof(bhead));
 643                                         }
 644                                 } else {
 645                                         fd->eof = 1;
 646                                         bhead.len= 0;
 647                                 }
 648                         } else {
 649                                 bhead8.code = DATA;
 650                                 readsize = fd->read(fd, &bhead8, sizeof(bhead8));
 651
 652                                 if (readsize == sizeof(bhead8) || bhead8.code == ENDB) {
 653                                         if (fd->flags & FD_FLAGS_SWITCH_ENDIAN) {
 654                                                 switch_endian_bh8(&bhead8);
 655                                         }
 656
 657                                         if (fd->flags & FD_FLAGS_POINTSIZE_DIFFERS) {
 658                                                 bh4_from_bh8(&bhead, &bhead8, (fd->flags & FD_FLAGS_SWITCH_ENDIAN));
 659                                         } else {
 660                                                 memcpy(&bhead, &bhead8, sizeof(bhead));
 661                                         }
 662                                 } else {
 663                                         fd->eof = 1;
 664                                         bhead.len= 0;
 665                                 }
 666                         }
 667
 668                         /* make sure people are not trying to pass bad blend files */
 669                         if (bhead.len < 0) fd->eof = 1;
 670
 671                         // bhead now contains the (converted) bhead structure. Now read
 672                         // the associated data and put everything in a BHeadN (creative naming !)
 673
 674                         if ( ! fd->eof) {
 675                                 new_bhead = MEM_mallocN(sizeof(BHeadN) + bhead.len, "new_bhead");
 676                                 if (new_bhead) {
 677                                         new_bhead->next = new_bhead->prev = 0;
 678                                         new_bhead->bhead = bhead;
 679
 680                                         readsize = fd->read(fd, new_bhead + 1, bhead.len);
 681
 682                                         if (readsize != bhead.len) {
 683                                                 fd->eof = 1;
 684                                                 MEM_freeN(new_bhead);
 685                                                 new_bhead = 0;
 686                                         }
 687                                 } else {
 688                                         fd->eof = 1;
 689                                 }
 690                         }
 691                 }
 692         }
 693
 694         // We've read a new block. Now add it to the list
 695         // of blocks.
 696
 697         if (new_bhead) {
 698                 BLI_addtail(&fd->listbase, new_bhead);
 699         }
 700
 701         return(new_bhead);
 702 }
 703
 704 BHead *blo_firstbhead(FileData *fd)
 705 {
 706         BHeadN *new_bhead;
 707         BHead *bhead = 0;
 708
 709         // Rewind the file
 710         // Read in a new block if necessary
 711
 712         new_bhead = fd->listbase.first;
 713         if (new_bhead == 0) {
 714                 new_bhead = get_bhead(fd);
 715         }
 716
 717         if (new_bhead) {
 718                 bhead = &new_bhead->bhead;
 719         }
 720
 721         return(bhead);
 722 }
 723
 724 BHead *blo_prevbhead(FileData *fd, BHead *thisblock)
 725 {
 726         BHeadN *bheadn= (BHeadN *) (((char *) thisblock) - GET_INT_FROM_POINTER( &((BHeadN*)0)->bhead) );
 727         BHeadN *prev= bheadn->prev;
 728
 729         return prev?&prev->bhead:NULL;
 730 }
 731
 732 BHead *blo_nextbhead(FileData *fd, BHead *thisblock)
 733 {
 734         BHeadN *new_bhead = NULL;
 735         BHead *bhead = NULL;
 736
 737         if (thisblock) {
 738                 // bhead is actually a sub part of BHeadN
 739                 // We calculate the BHeadN pointer from the BHead pointer below
 740                 new_bhead = (BHeadN *) (((char *) thisblock) - GET_INT_FROM_POINTER( &((BHeadN*)0)->bhead) );
 741
 742                 // get the next BHeadN. If it doesn't exist we read in the next one
 743                 new_bhead = new_bhead->next;
 744                 if (new_bhead == 0) {
 745                         new_bhead = get_bhead(fd);
 746                 }
 747         }
 748
 749         if (new_bhead) {
 750                 // here we do the reverse:
 751                 // go from the BHeadN pointer to the BHead pointer
 752                 bhead = &new_bhead->bhead;
 753         }
 754
 755         return(bhead);
 756 }
 757
 758 static void decode_blender_header(FileData *fd)
 759 {
 760         char header[SIZEOFBLENDERHEADER], num[4];
 761         int readsize;
 762
 763         // read in the header data
 764         readsize = fd->read(fd, header, sizeof(header));
 765
 766         if (readsize == sizeof(header)) {
 767                 if(strncmp(header, "BLENDER", 7) == 0) {
 768                         int remove_this_endian_test= 1;
 769
 770                         fd->flags |= FD_FLAGS_FILE_OK;
 771
 772                         // what size are pointers in the file ?
 773                         if(header[7]=='_') {
 774                                 fd->flags |= FD_FLAGS_FILE_POINTSIZE_IS_4;
 775                                 if (sizeof(void *) != 4) {
 776                                         fd->flags |= FD_FLAGS_POINTSIZE_DIFFERS;
 777                                 }
 778                         } else {
 779                                 if (sizeof(void *) != 8) {
 780                                         fd->flags |= FD_FLAGS_POINTSIZE_DIFFERS;
 781                                 }
 782                         }
 783
 784                         // is the file saved in a different endian
 785                         // than we need ?
 786                         if (((((char*)&remove_this_endian_test)[0]==1)?L_ENDIAN:B_ENDIAN) != ((header[8]=='v')?L_ENDIAN:B_ENDIAN)) {
 787                                 fd->flags |= FD_FLAGS_SWITCH_ENDIAN;
 788                         }
 789
 790                         // get the version number
 791
 792                         memcpy(num, header+9, 3);
 793                         num[3] = 0;
 794                         fd->fileversion = atoi(num);
 795                 }
 796         }
 797 }
 798
 799 static int read_file_dna(FileData *fd)
 800 {
 801         BHead *bhead;
 802
 803         for (bhead= blo_firstbhead(fd); bhead; bhead= blo_nextbhead(fd, bhead)) {
 804                 if (bhead->code==DNA1) {
 805                         int do_endian_swap= (fd->flags&FD_FLAGS_SWITCH_ENDIAN)?1:0;
 806
 807                         fd->filesdna= dna_sdna_from_data(&bhead[1], bhead->len, do_endian_swap);
 808                         if (fd->filesdna) {
 809
 810                                 fd->compflags= dna_get_structDNA_compareflags(fd->filesdna, fd->memsdna);
 811                                 /* used to retrieve ID names from (bhead+1) */
 812                                 fd->id_name_offs= dna_elem_offset(fd->filesdna, "ID", "char", "name[]");
 813                         }
 814
 815                         return 1;
 816                 } else if (bhead->code==ENDB)
 817                         break;
 818         }
 819
 820         return 0;
 821 }
 822
 823 static int fd_read_from_file(FileData *filedata, void *buffer, int size)
 824 {
 825         int readsize = read(filedata->filedes, buffer, size);
 826
 827         if (readsize < 0) {
 828                 readsize = EOF;
 829         } else {
 830                 filedata->seek += readsize;
 831         }
 832
 833         return (readsize);
 834 }
 835
 836 static int fd_read_gzip_from_file(FileData *filedata, void *buffer, int size)
 837 {
 838         int readsize = gzread(filedata->gzfiledes, buffer, size);
 839
 840         if (readsize < 0) {
 841                 readsize = EOF;
 842         } else {
 843                 filedata->seek += readsize;
 844         }
 845
 846         return (readsize);
 847 }
 848
 849 static int fd_read_from_memory(FileData *filedata, void *buffer, int size)
 850 {
 851                 // don't read more bytes then there are available in the buffer
 852         int readsize = MIN2(size, filedata->buffersize - filedata->seek);
 853
 854         memcpy(buffer, filedata->buffer + filedata->seek, readsize);
 855         filedata->seek += readsize;
 856
 857         return (readsize);
 858 }
 859
 860 static int fd_read_from_memfile(FileData *filedata, void *buffer, int size)
 861 {
 862         static unsigned int seek= 1<<30;        /* the current position */
 863         static unsigned int offset= 0;          /* size of previous chunks */
 864         static MemFileChunk *chunk=NULL;
 865         unsigned int chunkoffset, readsize, totread;
 866
 867         if(size==0) return 0;
 868
 869         if(seek != (unsigned int)filedata->seek) {
 870                 chunk= filedata->memfile->chunks.first;
 871                 seek= 0;
 872
 873                 while(chunk) {
 874                         if(seek + chunk->size > (unsigned) filedata->seek) break;
 875                         seek+= chunk->size;
 876                         chunk= chunk->next;
 877                 }
 878                 offset= seek;
 879                 seek= filedata->seek;
 880         }
 881
 882         if(chunk) {
 883                 totread= 0;
 884
 885                 do {
 886                         /* first check if it's on the end if current chunk */
 887                         if(seek-offset == chunk->size) {
 888                                 offset+= chunk->size;
 889                                 chunk= chunk->next;
 890                         }
 891
 892                         /* debug, should never happen */
 893                         if(chunk==NULL) {
 894                                 printf("illegal read, chunk zero\n");
 895                                 return 0;
 896                         }
 897
 898                         chunkoffset= seek-offset;
 899                         readsize= size-totread;
 900
 901                         /* data can be spread over multiple chunks, so clamp size
 902                          * to within this chunk, and then it will read further in
 903                          * the next chunk */
 904                         if(chunkoffset+readsize > chunk->size)
 905                                 readsize= chunk->size-chunkoffset;
 906
 907                         memcpy((char*)buffer+totread, chunk->buf+chunkoffset, readsize);
 908                         totread += readsize;
 909                         filedata->seek += readsize;
 910                         seek += readsize;
 911                 } while(totread < size);
 912
 913                 return totread;
 914         }
 915
 916         return 0;
 917 }
 918
 919 static FileData *filedata_new(void)
 920 {
 921         extern unsigned char DNAstr[];  /* DNA.c */
 922         extern int DNAlen;
 923         FileData *fd = MEM_callocN(sizeof(FileData), "FileData");
 924
 925         fd->filedes = -1;
 926         fd->gzfiledes = NULL;
 927
 928                 /* XXX, this doesn't need to be done all the time,
 929                  * but it keeps us reentrant,  remove once we have
 930                  * a lib that provides a nice lock. - zr
 931                  */
 932         fd->memsdna = dna_sdna_from_data(DNAstr,  DNAlen,  0);
 933
 934         fd->datamap = oldnewmap_new();
 935         fd->globmap = oldnewmap_new();
 936         fd->libmap = oldnewmap_new();
 937
 938         return fd;
 939 }
 940
 941 static FileData *blo_decode_and_check(FileData *fd, BlendReadError *error_r)
 942 {
 943         decode_blender_header(fd);
 944
 945         if (fd->flags & FD_FLAGS_FILE_OK) {
 946                 if (!read_file_dna(fd)) {
 947                         *error_r = BRE_INCOMPLETE;
 948                         blo_freefiledata(fd);
 949                         fd= NULL;
 950                 }
 951         }
 952         else {
 953                 *error_r = BRE_NOT_A_BLEND;
 954                 blo_freefiledata(fd);
 955                 fd= NULL;
 956         }
 957
 958         return fd;
 959 }
 960
 961 /* cannot be called with relative paths anymore! */
 962 /* on each new library added, it now checks for the current FileData and expands relativeness */
 963 FileData *blo_openblenderfile(char *name, BlendReadError *error_r)
 964 {
 965         gzFile gzfile;
 966
 967         gzfile= gzopen(name, "rb");
 968
 969         if (NULL == gzfile) {
 970                 *error_r = BRE_UNABLE_TO_OPEN;
 971                 return NULL;
 972         } else {
 973                 FileData *fd = filedata_new();
 974                 fd->gzfiledes = gzfile;
 975                 fd->read = fd_read_gzip_from_file;
 976
 977                 /* needed for library_append and read_libraries */
 978                 BLI_strncpy(fd->filename, name, sizeof(fd->filename));
 979
 980                 return blo_decode_and_check(fd, error_r);
 981         }
 982 }
 983
 984 FileData *blo_openblendermemory(void *mem, int memsize, BlendReadError *error_r)
 985 {
 986         if (!mem || memsize<SIZEOFBLENDERHEADER) {
 987                 *error_r = mem?BRE_UNABLE_TO_READ:BRE_UNABLE_TO_OPEN;
 988                 return NULL;
 989         } else {
 990                 FileData *fd= filedata_new();
 991                 fd->buffer= mem;
 992                 fd->buffersize= memsize;
 993                 fd->read= fd_read_from_memory;
 994                 fd->flags|= FD_FLAGS_NOT_MY_BUFFER;
 995
 996                 return blo_decode_and_check(fd, error_r);
 997         }
 998 }
 999
1000 FileData *blo_openblendermemfile(MemFile *memfile, BlendReadError *error_r)
1001 {
1002         if (!memfile) {
1003                 *error_r = BRE_UNABLE_TO_OPEN;
1004                 return NULL;
1005         } else {
1006                 FileData *fd= filedata_new();
1007                 fd->memfile= memfile;
1008
1009                 fd->read= fd_read_from_memfile;
1010                 fd->flags|= FD_FLAGS_NOT_MY_BUFFER;
1011
1012                 return blo_decode_and_check(fd, error_r);
1013         }
1014 }
1015
1016
1017 void blo_freefiledata(FileData *fd)
1018 {
1019         if (fd) {
1020
1021                 if (fd->filedes != -1) {
1022                         close(fd->filedes);
1023                 }
1024
1025                 if (fd->gzfiledes != NULL)
1026                 {
1027                         gzclose(fd->gzfiledes);
1028                 }
1029
1030                 if (fd->buffer && !(fd->flags & FD_FLAGS_NOT_MY_BUFFER)) {
1031                         MEM_freeN(fd->buffer);
1032                         fd->buffer = 0;
1033                 }
1034
1035                 // Free all BHeadN data blocks
1036                 BLI_freelistN(&fd->listbase);
1037
1038                 if (fd->memsdna)
1039                         dna_freestructDNA(fd->memsdna);
1040                 if (fd->filesdna)
1041                         dna_freestructDNA(fd->filesdna);
1042                 if (fd->compflags)
1043                         MEM_freeN(fd->compflags);
1044
1045                 if (fd->datamap)
1046                         oldnewmap_free(fd->datamap);
1047                 if (fd->globmap)
1048                         oldnewmap_free(fd->globmap);
1049                 if (fd->imamap)
1050                         oldnewmap_free(fd->imamap);
1051                 if (fd->libmap && !(fd->flags & FD_FLAGS_NOT_MY_LIBMAP))
1052                         oldnewmap_free(fd->libmap);
1053                 if (fd->bheadmap)
1054                         MEM_freeN(fd->bheadmap);
1055
1056                 MEM_freeN(fd);
1057         }
1058 }
1059
1060 /* ************ DIV ****************** */
1061
1062 int BLO_has_bfile_extension(char *str)
1063 {
1064         return (BLI_testextensie(str, ".ble") || BLI_testextensie(str, ".blend")||BLI_testextensie(str, ".blend.gz"));
1065 }
1066
1067 /* ************** OLD POINTERS ******************* */
1068
1069 static void *newdataadr(FileData *fd, void *adr)                /* only direct databocks */
1070 {
1071         return oldnewmap_lookup_and_inc(fd->datamap, adr);
1072 }
1073
1074 static void *newglobadr(FileData *fd, void *adr)                /* direct datablocks with global linking */
1075 {
1076         return oldnewmap_lookup_and_inc(fd->globmap, adr);
1077 }
1078
1079 static void *newimaadr(FileData *fd, void *adr)         /* used to restore image data after undo */
1080 {
1081         if(fd->imamap && adr)
1082                 return oldnewmap_lookup_and_inc(fd->imamap, adr);
1083         return NULL;
1084 }
1085
1086
1087 static void *newlibadr(FileData *fd, void *lib, void *adr)              /* only lib data */
1088 {
1089         return oldnewmap_liblookup(fd->libmap, adr, lib);
1090 }
1091
1092 static void *newlibadr_us(FileData *fd, void *lib, void *adr)   /* increases user number */
1093 {
1094         ID *id= newlibadr(fd, lib, adr);
1095
1096         if(id)
1097                 id->us++;
1098
1099         return id;
1100 }
1101
1102 static void change_idid_adr_fd(FileData *fd, void *old, void *new)
1103 {
1104         int i;
1105
1106         for (i=0; i<fd->libmap->nentries; i++) {
1107                 OldNew *entry= &fd->libmap->entries[i];
1108
1109                 if (old==entry->newp && entry->nr==ID_ID) {
1110                         entry->newp= new;
1111                         if(new) entry->nr= GS( ((ID *)new)->name );
1112                         break;
1113                 }
1114         }
1115 }
1116
1117 static void change_idid_adr(ListBase *mainlist, FileData *basefd, void *old, void *new)
1118 {
1119         Main *mainptr;
1120
1121         for(mainptr= mainlist->first; mainptr; mainptr= mainptr->next) {
1122                 FileData *fd;
1123
1124                 if(mainptr->curlib) fd= mainptr->curlib->filedata;
1125                 else fd= basefd;
1126
1127                 if(fd) {
1128                         change_idid_adr_fd(fd, old, new);
1129                 }
1130         }
1131 }
1132
1133 /* lib linked proxy objects point to our local data, we need
1134  * to clear that pointer before reading the undo memfile since
1135  * the object might be removed, it is set again in reading
1136  * if the local object still exists */
1137 void blo_clear_proxy_pointers_from_lib(FileData *fd)
1138 {
1139         Object *ob= G.main->object.first;
1140
1141         for(;ob; ob= ob->id.next)
1142                 if(ob->id.lib)
1143                         ob->proxy_from= NULL;
1144 }
1145
1146 /* assumed; G.main still exists */
1147 void blo_make_image_pointer_map(FileData *fd)
1148 {
1149         Image *ima= G.main->image.first;
1150         Scene *sce= G.main->scene.first;
1151
1152         fd->imamap= oldnewmap_new();
1153
1154         for(;ima; ima= ima->id.next) {
1155                 Link *ibuf= ima->ibufs.first;
1156                 for(; ibuf; ibuf= ibuf->next)
1157                         oldnewmap_insert(fd->imamap, ibuf, ibuf, 0);
1158                 if(ima->gputexture)
1159                         oldnewmap_insert(fd->imamap, ima->gputexture, ima->gputexture, 0);
1160         }
1161         for(; sce; sce= sce->id.next) {
1162                 if(sce->nodetree) {
1163                         bNode *node;
1164                         for(node= sce->nodetree->nodes.first; node; node= node->next)
1165                                 oldnewmap_insert(fd->imamap, node->preview, node->preview, 0);
1166                 }
1167         }
1168 }
1169
1170 /* set G.main image ibufs to zero if it has been restored */
1171 /* this works because freeing G.main only happens after this call */
1172 void blo_end_image_pointer_map(FileData *fd)
1173 {
1174         OldNew *entry= fd->imamap->entries;
1175         Image *ima= G.main->image.first;
1176         Scene *sce= G.main->scene.first;
1177         int i;
1178
1179         /* used entries were restored, so we put them to zero */
1180         for (i=0; i<fd->imamap->nentries; i++, entry++) {
1181                 if (entry->nr>0)
1182                         entry->newp= NULL;
1183         }
1184
1185         for(;ima; ima= ima->id.next) {
1186                 Link *ibuf, *next;
1187
1188                 /* this mirrors direct_link_image */
1189                 for(ibuf= ima->ibufs.first; ibuf; ibuf= next) {
1190                         next= ibuf->next;
1191                         if(NULL==newimaadr(fd, ibuf)) { /* so was restored */
1192                                 BLI_remlink(&ima->ibufs, ibuf);
1193                                 ima->bindcode= 0;
1194                                 ima->gputexture= NULL;
1195                         }
1196                 }
1197
1198                 ima->gputexture= newimaadr(fd, ima->gputexture);
1199         }
1200         for(; sce; sce= sce->id.next) {
1201                 if(sce->nodetree) {
1202                         bNode *node;
1203                         for(node= sce->nodetree->nodes.first; node; node= node->next)
1204                                 node->preview= newimaadr(fd, node->preview);
1205                 }
1206         }
1207 }
1208
1209 /* undo file support: add all library pointers in lookup */
1210 void blo_add_library_pointer_map(ListBase *mainlist, FileData *fd)
1211 {
1212         Main *ptr= mainlist->first;
1213         ListBase *lbarray[MAX_LIBARRAY];
1214
1215         for(ptr= ptr->next; ptr; ptr= ptr->next) {
1216                 int i= set_listbasepointers(ptr, lbarray);
1217                 while(i--) {
1218                         ID *id;
1219                         for(id= lbarray[i]->first; id; id= id->next)
1220                                 oldnewmap_insert(fd->libmap, id, id, GS(id->name));
1221                 }
1222         }
1223 }
1224
1225
1226 /* ********** END OLD POINTERS ****************** */
1227 /* ********** READ FILE ****************** */
1228
1229 static void switch_endian_structs(struct SDNA *filesdna, BHead *bhead)
1230 {
1231         int blocksize, nblocks;
1232         char *data;
1233
1234         data= (char *)(bhead+1);
1235         blocksize= filesdna->typelens[ filesdna->structs[bhead->SDNAnr][0] ];
1236
1237         nblocks= bhead->nr;
1238         while(nblocks--) {
1239                 dna_switch_endian_struct(filesdna, bhead->SDNAnr, data);
1240
1241                 data+= blocksize;
1242         }
1243 }
1244
1245 static void *read_struct(FileData *fd, BHead *bh, char *blockname)
1246 {
1247         void *temp= NULL;
1248
1249         if (bh->len) {
1250                 /* switch is based on file dna */
1251                 if (bh->SDNAnr && (fd->flags & FD_FLAGS_SWITCH_ENDIAN))
1252                         switch_endian_structs(fd->filesdna, bh);
1253
1254                 if (fd->compflags[bh->SDNAnr]) {        /* flag==0: doesn't exist anymore */
1255                         if(fd->compflags[bh->SDNAnr]==2) {
1256                                 temp= dna_reconstruct(fd->memsdna, fd->filesdna, fd->compflags, bh->SDNAnr, bh->nr, (bh+1));
1257                         } else {
1258                                 temp= MEM_mallocN(bh->len, blockname);
1259                                 memcpy(temp, (bh+1), bh->len);
1260                         }
1261                 }
1262         }
1263
1264         return temp;
1265 }
1266
1267 static void link_list(FileData *fd, ListBase *lb)               /* only direct data */
1268 {
1269         Link *ln, *prev;
1270
1271         if(lb->first==NULL) return;
1272
1273         lb->first= newdataadr(fd, lb->first);
1274         ln= lb->first;
1275         prev= NULL;
1276         while(ln) {
1277                 ln->next= newdataadr(fd, ln->next);
1278                 ln->prev= prev;
1279                 prev= ln;
1280                 ln= ln->next;
1281         }
1282         lb->last= prev;
1283 }
1284
1285 static void link_glob_list(FileData *fd, ListBase *lb)          /* for glob data */
1286 {
1287         Link *ln, *prev;
1288         void *poin;
1289
1290         if(lb->first==0) return;
1291         poin= newdataadr(fd, lb->first);
1292         if(lb->first) {
1293                 oldnewmap_insert(fd->globmap, lb->first, poin, 0);
1294         }
1295         lb->first= poin;
1296
1297         ln= lb->first;
1298         prev= 0;
1299         while(ln) {
1300                 poin= newdataadr(fd, ln->next);
1301                 if(ln->next) {
1302                         oldnewmap_insert(fd->globmap, ln->next, poin, 0);
1303                 }
1304                 ln->next= poin;
1305                 ln->prev= prev;
1306                 prev= ln;
1307                 ln= ln->next;
1308         }
1309         lb->last= prev;
1310 }
1311
1312 static void test_pointer_array(FileData *fd, void **mat)
1313 {
1314 #if defined(WIN32) && !defined(FREE_WINDOWS)
1315         __int64 *lpoin, *lmat;
1316 #else
1317         long long *lpoin, *lmat;
1318 #endif
1319         int len, *ipoin, *imat;
1320
1321                 /* manually convert the pointer array in
1322                  * the old dna format to a pointer array in
1323                  * the new dna format.
1324                  */
1325         if(*mat) {
1326                 len= MEM_allocN_len(*mat)/fd->filesdna->pointerlen;
1327
1328                 if(fd->filesdna->pointerlen==8 && fd->memsdna->pointerlen==4) {
1329                         ipoin=imat= MEM_mallocN( len*4, "newmatar");
1330                         lpoin= *mat;
1331
1332                         while(len-- > 0) {
1333                                 if((fd->flags & FD_FLAGS_SWITCH_ENDIAN))
1334                                         SWITCH_LONGINT(*lpoin);
1335                                 *ipoin= (int) ((*lpoin) >> 3);
1336                                 ipoin++;
1337                                 lpoin++;
1338                         }
1339                         MEM_freeN(*mat);
1340                         *mat= imat;
1341                 }
1342
1343                 if(fd->filesdna->pointerlen==4 && fd->memsdna->pointerlen==8) {
1344                         lpoin=lmat= MEM_mallocN( len*8, "newmatar");
1345                         ipoin= *mat;
1346
1347                         while(len-- > 0) {
1348                                 *lpoin= *ipoin;
1349                                 ipoin++;
1350                                 lpoin++;
1351                         }
1352                         MEM_freeN(*mat);
1353                         *mat= lmat;
1354                 }
1355         }
1356 }
1357
1358 /* ************ READ ID Properties *************** */
1359
1360 void IDP_DirectLinkProperty(IDProperty *prop, int switch_endian, void *fd);
1361 void IDP_LibLinkProperty(IDProperty *prop, int switch_endian, void *fd);
1362
1363 static void IDP_DirectLinkArray(IDProperty *prop, int switch_endian, void *fd)
1364 {
1365         int i;
1366
1367         /*since we didn't save the extra buffer, set totallen to len.*/
1368         prop->totallen = prop->len;
1369         prop->data.pointer = newdataadr(fd, prop->data.pointer);
1370
1371         if (switch_endian) {
1372                 if (prop->subtype != IDP_DOUBLE) {
1373                         for (i=0; i<prop->len; i++) {
1374                                 SWITCH_INT(((int*)prop->data.pointer)[i]);
1375                         }
1376                 } else {
1377                         for (i=0; i<prop->len; i++) {
1378                                 SWITCH_LONGINT(((double*)prop->data.pointer)[i]);
1379                         }
1380                 }
1381         }
1382 }
1383
1384 static void IDP_DirectLinkString(IDProperty *prop, int switch_endian, void *fd)
1385 {
1386         /*since we didn't save the extra string buffer, set totallen to len.*/
1387         prop->totallen = prop->len;
1388         prop->data.pointer = newdataadr(fd, prop->data.pointer);
1389 }
1390
1391 static void IDP_DirectLinkGroup(IDProperty *prop, int switch_endian, void *fd)
1392 {
1393         ListBase *lb = &prop->data.group;
1394         IDProperty *loop;
1395
1396         link_list(fd, lb);
1397
1398         /*Link child id properties now*/
1399         for (loop=prop->data.group.first; loop; loop=loop->next) {
1400                 IDP_DirectLinkProperty(loop, switch_endian, fd);
1401         }
1402 }
1403
1404 void IDP_DirectLinkProperty(IDProperty *prop, int switch_endian, void *fd)
1405 {
1406         switch (prop->type) {
1407                 case IDP_GROUP:
1408                         IDP_DirectLinkGroup(prop, switch_endian, fd);
1409                         break;
1410                 case IDP_STRING:
1411                         IDP_DirectLinkString(prop, switch_endian, fd);
1412                         break;
1413                 case IDP_ARRAY:
1414                         IDP_DirectLinkArray(prop, switch_endian, fd);
1415                         break;
1416                 case IDP_DOUBLE:
1417                         /*erg, stupid doubles.  since I'm storing them
1418                          in the same field as int val; val2 in the
1419                          IDPropertyData struct, they have to deal with
1420                          endianness specifically
1421
1422                          in theory, val and val2 would've already been swapped
1423                          if switch_endian is true, so we have to first unswap
1424                          them then reswap them as a single 64-bit entity.
1425                          */
1426
1427                         if (switch_endian) {
1428                                 SWITCH_INT(prop->data.val);
1429                                 SWITCH_INT(prop->data.val2);
1430                                 SWITCH_LONGINT(prop->data.val);
1431                         }
1432
1433                         break;
1434         }
1435 }
1436
1437 /*stub function*/
1438 void IDP_LibLinkProperty(IDProperty *prop, int switch_endian, void *fd)
1439 {
1440 }
1441
1442 /* ************ READ Brush *************** */
1443 /* library brush linking after fileread */
1444 static void lib_link_brush(FileData *fd, Main *main)
1445 {
1446         Brush *brush;
1447         MTex *mtex;
1448         int a;
1449
1450         /* only link ID pointers */
1451         for(brush= main->brush.first; brush; brush= brush->id.next) {
1452                 if(brush->id.flag & LIB_NEEDLINK) {
1453                         brush->id.flag -= LIB_NEEDLINK;
1454
1455                         for(a=0; a<MAX_MTEX; a++) {
1456                                 mtex= brush->mtex[a];
1457                                 if(mtex)
1458                                         mtex->tex= newlibadr_us(fd, brush->id.lib, mtex->tex);
1459                         }
1460                 }
1461         }
1462 }
1463
1464 static void direct_link_brush(FileData *fd, Brush *brush)
1465 {
1466         /* brush itself has been read */
1467         int a;
1468
1469         for(a=0; a<MAX_MTEX; a++)
1470                 brush->mtex[a]= newdataadr(fd, brush->mtex[a]);
1471 }
1472
1473 static void direct_link_script(FileData *fd, Script *script)
1474 {
1475         script->id.us = 1;
1476         SCRIPT_SET_NULL(script)
1477 }
1478
1479 /* ************ READ CurveMapping *************** */
1480
1481 /* cuma itself has been read! */
1482 static void direct_link_curvemapping(FileData *fd, CurveMapping *cumap)
1483 {
1484         int a;
1485
1486         /* flag seems to be able to hang? Maybe old files... not bad to clear anyway */
1487         cumap->flag &= ~CUMA_PREMULLED;
1488
1489         for(a=0; a<CM_TOT; a++) {
1490                 cumap->cm[a].curve= newdataadr(fd, cumap->cm[a].curve);
1491                 cumap->cm[a].table= NULL;
1492         }
1493 }
1494
1495 /* ************ READ NODE TREE *************** */
1496
1497 /* singe node tree (also used for material/scene trees), ntree is not NULL */
1498 static void lib_link_ntree(FileData *fd, ID *id, bNodeTree *ntree)
1499 {
1500         bNode *node;
1501
1502         for(node= ntree->nodes.first; node; node= node->next)
1503                 node->id= newlibadr_us(fd, id->lib, node->id);
1504 }
1505
1506 /* library ntree linking after fileread */
1507 static void lib_link_nodetree(FileData *fd, Main *main)
1508 {
1509         bNodeTree *ntree;
1510
1511         /* only link ID pointers */
1512         for(ntree= main->nodetree.first; ntree; ntree= ntree->id.next) {
1513                 if(ntree->id.flag & LIB_NEEDLINK) {
1514                         ntree->id.flag -= LIB_NEEDLINK;
1515                         lib_link_ntree(fd, &ntree->id, ntree);
1516                 }
1517         }
1518 }
1519
1520 /* verify types for nodes and groups, all data has to be read */
1521 /* open = 0: appending/linking, open = 1: open new file (need to clean out dynamic
1522  * typedefs*/
1523 static void lib_verify_nodetree(Main *main, int open)
1524 {
1525         Scene *sce;
1526         Material *ma;
1527         Tex *tx;
1528         bNodeTree *ntree;
1529
1530         /* this crashes blender on undo/redo
1531         if(open==1) {
1532                 reinit_nodesystem();
1533         }*/
1534
1535         /* now create the own typeinfo structs an verify nodes */
1536         /* here we still assume no groups in groups */
1537         for(ntree= main->nodetree.first; ntree; ntree= ntree->id.next) {
1538                 ntreeVerifyTypes(ntree);        /* internal nodes, no groups! */
1539                 ntreeMakeOwnType(ntree);        /* for group usage */
1540         }
1541
1542         /* now verify all types in material trees, groups are set OK now */
1543         for(ma= main->mat.first; ma; ma= ma->id.next) {
1544                 if(ma->nodetree)
1545                         ntreeVerifyTypes(ma->nodetree);
1546         }
1547         /* and scene trees */
1548         for(sce= main->scene.first; sce; sce= sce->id.next) {
1549                 if(sce->nodetree)
1550                         ntreeVerifyTypes(sce->nodetree);
1551         }
1552         /* and texture trees */
1553         for(tx= main->tex.first; tx; tx= tx->id.next) {
1554                 if(tx->nodetree)
1555                         ntreeVerifyTypes(tx->nodetree);
1556         }
1557 }
1558
1559
1560
1561 /* ntree itself has been read! */
1562 static void direct_link_nodetree(FileData *fd, bNodeTree *ntree)
1563 {
1564         /* note: writing and reading goes in sync, for speed */
1565         bNode *node;
1566         bNodeSocket *sock;
1567         bNodeLink *link;
1568
1569         ntree->init= 0;         /* to set callbacks and force setting types */
1570         ntree->owntype= NULL;
1571         ntree->timecursor= NULL;
1572
1573         link_list(fd, &ntree->nodes);
1574         for(node= ntree->nodes.first; node; node= node->next) {
1575                 if(node->type == NODE_DYNAMIC) {
1576                         node->custom1= 0;
1577                         node->custom1= BSET(node->custom1, NODE_DYNAMIC_LOADED);
1578                         node->typeinfo= NULL;
1579                 }
1580
1581                 node->storage= newdataadr(fd, node->storage);
1582                 if(node->storage) {
1583
1584                         /* could be handlerized at some point */
1585                         if(ntree->type==NTREE_SHADER && (node->type==SH_NODE_CURVE_VEC || node->type==SH_NODE_CURVE_RGB))
1586                                 direct_link_curvemapping(fd, node->storage);
1587                         else if(ntree->type==NTREE_COMPOSIT) {
1588                                 if( ELEM3(node->type, CMP_NODE_TIME, CMP_NODE_CURVE_VEC, CMP_NODE_CURVE_RGB))
1589                                         direct_link_curvemapping(fd, node->storage);
1590                                 else if(ELEM3(node->type, CMP_NODE_IMAGE, CMP_NODE_VIEWER, CMP_NODE_SPLITVIEWER))
1591                                         ((ImageUser *)node->storage)->ok= 1;
1592                         }
1593                         else if( ntree->type==NTREE_TEXTURE && (node->type==TEX_NODE_CURVE_RGB || node->type==TEX_NODE_CURVE_TIME) ) {
1594                                 direct_link_curvemapping(fd, node->storage);
1595                         }
1596                 }
1597                 link_list(fd, &node->inputs);
1598                 link_list(fd, &node->outputs);
1599         }
1600         link_list(fd, &ntree->links);
1601
1602         /* and we connect the rest */
1603         for(node= ntree->nodes.first; node; node= node->next) {
1604                 node->preview= newimaadr(fd, node->preview);
1605                 node->lasty= 0;
1606                 for(sock= node->inputs.first; sock; sock= sock->next)
1607                         sock->link= newdataadr(fd, sock->link);
1608                 for(sock= node->outputs.first; sock; sock= sock->next)
1609                         sock->ns.data= NULL;
1610         }
1611         for(link= ntree->links.first; link; link= link->next) {
1612                 link->fromnode= newdataadr(fd, link->fromnode);
1613                 link->tonode= newdataadr(fd, link->tonode);
1614                 link->fromsock= newdataadr(fd, link->fromsock);
1615                 link->tosock= newdataadr(fd, link->tosock);
1616         }
1617
1618         /* set selin and selout */
1619         for(node= ntree->nodes.first; node; node= node->next) {
1620                 for(sock= node->inputs.first; sock; sock= sock->next) {
1621                         if(sock->flag & SOCK_SEL) {
1622                                 ntree->selin= sock;
1623                                 break;
1624                         }
1625                 }
1626                 for(sock= node->outputs.first; sock; sock= sock->next) {
1627                         if(sock->flag & SOCK_SEL) {
1628                                 ntree->selout= sock;
1629                                 break;
1630                         }
1631                 }
1632         }
1633
1634         /* type verification is in lib-link */
1635 }
1636
1637 /* ************ READ PACKEDFILE *************** */
1638
1639 static PackedFile *direct_link_packedfile(FileData *fd, PackedFile *oldpf)
1640 {
1641         PackedFile *pf= newdataadr(fd, oldpf);
1642
1643         if (pf) {
1644                 pf->data= newdataadr(fd, pf->data);
1645         }
1646
1647         return pf;
1648 }
1649
1650 /* ************ READ IMAGE PREVIEW *************** */
1651
1652 static PreviewImage *direct_link_preview_image(FileData *fd, PreviewImage *old_prv)
1653 {
1654         PreviewImage *prv= newdataadr(fd, old_prv);
1655
1656         if (prv) {
1657                 int i;
1658                 for (i=0; i < PREVIEW_MIPMAPS; ++i) {
1659                         if (prv->rect[i]) {
1660                                 prv->rect[i] = newdataadr(fd, prv->rect[i]);
1661                         }
1662                 }
1663         }
1664
1665         return prv;
1666 }
1667
1668 /* ************ READ SCRIPTLINK *************** */
1669
1670 static void lib_link_scriptlink(FileData *fd, ID *id, ScriptLink *slink)
1671 {
1672         int i;
1673
1674         for(i=0; i<slink->totscript; i++) {
1675                 slink->scripts[i]= newlibadr(fd, id->lib, slink->scripts[i]);
1676         }
1677 }
1678
1679 static void direct_link_scriptlink(FileData *fd, ScriptLink *slink)
1680 {
1681         slink->scripts= newdataadr(fd, slink->scripts);
1682         test_pointer_array(fd, (void **)&slink->scripts);
1683
1684         slink->flag= newdataadr(fd, slink->flag);
1685
1686         if(fd->flags & FD_FLAGS_SWITCH_ENDIAN) {
1687                 int a;
1688
1689                 for(a=0; a<slink->totscript; a++) {
1690                         SWITCH_SHORT(slink->flag[a]);
1691                 }
1692         }
1693 }
1694
1695 /* ************ READ ARMATURE ***************** */
1696
1697 static void lib_link_nlastrips(FileData *fd, ID *id, ListBase *striplist)
1698 {
1699         bActionStrip *strip;
1700         bActionModifier *amod;
1701
1702         for (strip=striplist->first; strip; strip=strip->next){
1703                 strip->object = newlibadr(fd, id->lib, strip->object);
1704                 strip->act = newlibadr_us(fd, id->lib, strip->act);
1705                 strip->ipo = newlibadr(fd, id->lib, strip->ipo);
1706                 for(amod= strip->modifiers.first; amod; amod= amod->next)
1707                         amod->ob= newlibadr(fd, id->lib, amod->ob);
1708         }
1709 }
1710
1711 static void lib_link_constraint_channels(FileData *fd, ID *id, ListBase *chanbase)
1712 {
1713         bConstraintChannel *chan;
1714
1715         for (chan=chanbase->first; chan; chan=chan->next){
1716                 chan->ipo = newlibadr_us(fd, id->lib, chan->ipo);
1717         }
1718 }
1719
1720 static void lib_link_constraints(FileData *fd, ID *id, ListBase *conlist)
1721 {
1722         bConstraint *con;
1723
1724         for (con = conlist->first; con; con=con->next) {
1725                 /* patch for error introduced by changing constraints (dunno how) */
1726                 /* if con->data type changes, dna cannot resolve the pointer! (ton) */
1727                 if(con->data==NULL) {
1728                         con->type= CONSTRAINT_TYPE_NULL;
1729                 }
1730                 /* own ipo, all constraints have it */
1731                 con->ipo= newlibadr_us(fd, id->lib, con->ipo);
1732
1733                 switch (con->type) {
1734                 case CONSTRAINT_TYPE_PYTHON:
1735                         {
1736                                 bPythonConstraint *data= (bPythonConstraint*)con->data;
1737                                 bConstraintTarget *ct;
1738
1739                                 for (ct= data->targets.first; ct; ct= ct->next)
1740                                         ct->tar = newlibadr(fd, id->lib, ct->tar);
1741
1742                                 data->text = newlibadr(fd, id->lib, data->text);
1743                                 //IDP_LibLinkProperty(data->prop, (fd->flags & FD_FLAGS_SWITCH_ENDIAN), fd);
1744                         }
1745                         break;
1746                 case CONSTRAINT_TYPE_ACTION:
1747                         {
1748                                 bActionConstraint *data;
1749                                 data= ((bActionConstraint*)con->data);
1750                                 data->tar = newlibadr(fd, id->lib, data->tar);
1751                                 data->act = newlibadr(fd, id->lib, data->act);
1752                         }
1753                         break;
1754                 case CONSTRAINT_TYPE_LOCLIKE:
1755                         {
1756                                 bLocateLikeConstraint *data;
1757                                 data= ((bLocateLikeConstraint*)con->data);
1758                                 data->tar = newlibadr(fd, id->lib, data->tar);
1759                         }
1760                         break;
1761                 case CONSTRAINT_TYPE_ROTLIKE:
1762                         {
1763                                 bRotateLikeConstraint *data;
1764                                 data= ((bRotateLikeConstraint*)con->data);
1765                                 data->tar = newlibadr(fd, id->lib, data->tar);
1766                         }
1767                         break;
1768                 case CONSTRAINT_TYPE_SIZELIKE:
1769                         {
1770                                 bSizeLikeConstraint *data;
1771                                 data= ((bSizeLikeConstraint*)con->data);
1772                                 data->tar = newlibadr(fd, id->lib, data->tar);
1773                         }
1774                         break;
1775                 case CONSTRAINT_TYPE_KINEMATIC:
1776                         {
1777                                 bKinematicConstraint *data;
1778                                 data = ((bKinematicConstraint*)con->data);
1779                                 data->tar = newlibadr(fd, id->lib, data->tar);
1780                                 data->poletar = newlibadr(fd, id->lib, data->poletar);
1781                         }
1782                         break;
1783                 case CONSTRAINT_TYPE_TRACKTO:
1784                         {
1785                                 bTrackToConstraint *data;
1786                                 data = ((bTrackToConstraint*)con->data);
1787                                 data->tar = newlibadr(fd, id->lib, data->tar);
1788                         }
1789                         break;
1790                 case CONSTRAINT_TYPE_MINMAX:
1791                         {
1792                                 bMinMaxConstraint *data;
1793                                 data = ((bMinMaxConstraint*)con->data);
1794                                 data->tar = newlibadr(fd, id->lib, data->tar);
1795                         }
1796                         break;
1797                 case CONSTRAINT_TYPE_LOCKTRACK:
1798                         {
1799                                 bLockTrackConstraint *data;
1800                                 data= ((bLockTrackConstraint*)con->data);
1801                                 data->tar = newlibadr(fd, id->lib, data->tar);
1802                         }
1803                         break;
1804                 case CONSTRAINT_TYPE_FOLLOWPATH:
1805                         {
1806                                 bFollowPathConstraint *data;
1807                                 data= ((bFollowPathConstraint*)con->data);
1808                                 data->tar = newlibadr(fd, id->lib, data->tar);
1809                         }
1810                         break;
1811                 case CONSTRAINT_TYPE_STRETCHTO:
1812                         {
1813                                 bStretchToConstraint *data;
1814                                 data= ((bStretchToConstraint*)con->data);
1815                                 data->tar = newlibadr(fd, id->lib, data->tar);
1816                         }
1817                         break;
1818                 case CONSTRAINT_TYPE_RIGIDBODYJOINT:
1819                         {
1820                                 bRigidBodyJointConstraint *data;
1821                                 data= ((bRigidBodyJointConstraint*)con->data);
1822                                 data->tar = newlibadr(fd, id->lib, data->tar);
1823                         }
1824                         break;
1825                 case CONSTRAINT_TYPE_CLAMPTO:
1826                         {
1827                                 bClampToConstraint *data;
1828                                 data= ((bClampToConstraint*)con->data);
1829                                 data->tar = newlibadr(fd, id->lib, data->tar);
1830                         }
1831                         break;
1832                 case CONSTRAINT_TYPE_CHILDOF:
1833                         {
1834                                 bChildOfConstraint *data;
1835                                 data= ((bChildOfConstraint*)con->data);
1836                                 data->tar = newlibadr(fd, id->lib, data->tar);
1837                         }
1838                         break;
1839                 case CONSTRAINT_TYPE_TRANSFORM:
1840                         {
1841                                 bTransformConstraint *data;
1842                                 data= ((bTransformConstraint*)con->data);
1843                                 data->tar = newlibadr(fd, id->lib, data->tar);
1844                         }
1845                         break;
1846                 case CONSTRAINT_TYPE_DISTLIMIT:
1847                         {
1848                                 bDistLimitConstraint *data;
1849                                 data= ((bDistLimitConstraint*)con->data);
1850                                 data->tar = newlibadr(fd, id->lib, data->tar);
1851                         }
1852                         break;
1853                 case CONSTRAINT_TYPE_NULL:
1854                         break;
1855                 }
1856         }
1857 }
1858
1859 static void direct_link_constraints(FileData *fd, ListBase *lb)
1860 {
1861         bConstraint *cons;
1862
1863         link_list(fd, lb);
1864         for (cons=lb->first; cons; cons=cons->next) {
1865                 cons->data = newdataadr(fd, cons->data);
1866
1867                 if (cons->type == CONSTRAINT_TYPE_PYTHON) {
1868                         bPythonConstraint *data= cons->data;
1869                         link_list(fd, &data->targets);
1870                         data->prop = newdataadr(fd, data->prop);
1871                         IDP_DirectLinkProperty(data->prop, (fd->flags & FD_FLAGS_SWITCH_ENDIAN), fd);
1872                 }
1873         }
1874 }
1875
1876 static void lib_link_pose(FileData *fd, Object *ob, bPose *pose)
1877 {
1878         bPoseChannel *pchan;
1879         bArmature *arm= ob->data;
1880         int rebuild;
1881
1882         if (!pose || !arm)
1883                 return;
1884
1885         /* always rebuild to match proxy or lib changes */
1886         rebuild= ob->proxy || (ob->id.lib==NULL && arm->id.lib);
1887
1888         for (pchan = pose->chanbase.first; pchan; pchan=pchan->next) {
1889                 lib_link_constraints(fd, (ID *)ob, &pchan->constraints);
1890
1891                 /* hurms... loop in a loop, but yah... later... (ton) */
1892                 pchan->bone= get_named_bone(arm, pchan->name);
1893
1894                 pchan->custom= newlibadr(fd, arm->id.lib, pchan->custom);
1895                 if(pchan->bone==NULL)
1896                         rebuild= 1;
1897                 else if(ob->id.lib==NULL && arm->id.lib) {
1898                         /* local pose selection copied to armature, bit hackish */
1899                         pchan->bone->flag &= ~(BONE_SELECTED|BONE_ACTIVE);
1900                         pchan->bone->flag |= pchan->selectflag;
1901                 }
1902         }
1903
1904         if(rebuild) {
1905                 ob->recalc= OB_RECALC;
1906                 pose->flag |= POSE_RECALC;
1907         }
1908 }
1909
1910 static void lib_link_armature(FileData *fd, Main *main)
1911 {
1912         bArmature *arm;
1913
1914         arm= main->armature.first;
1915
1916         while(arm) {
1917                 if(arm->id.flag & LIB_NEEDLINK) {
1918                         arm->id.flag -= LIB_NEEDLINK;
1919                 }
1920                 arm= arm->id.next;
1921         }
1922 }
1923
1924 static void lib_link_action(FileData *fd, Main *main)
1925 {
1926         bAction *act;
1927         bActionChannel *chan;
1928
1929         act= main->action.first;
1930         while(act) {
1931                 if(act->id.flag & LIB_NEEDLINK) {
1932                         act->id.flag -= LIB_NEEDLINK;
1933
1934                         for (chan=act->chanbase.first; chan; chan=chan->next) {
1935                                 chan->ipo= newlibadr_us(fd, act->id.lib, chan->ipo);
1936                                 lib_link_constraint_channels(fd, &act->id, &chan->constraintChannels);
1937                         }
1938
1939                 }
1940                 act= act->id.next;
1941         }
1942 }
1943
1944 static void direct_link_bones(FileData *fd, Bone* bone)
1945 {
1946         Bone    *child;
1947
1948         bone->parent= newdataadr(fd, bone->parent);
1949
1950         link_list(fd, &bone->childbase);
1951
1952         for (child=bone->childbase.first; child; child=child->next) {
1953                 direct_link_bones(fd, child);
1954         }
1955 }
1956
1957
1958 static void direct_link_action(FileData *fd, bAction *act)
1959 {
1960         bActionChannel *achan;
1961         bActionGroup *agrp;
1962
1963         link_list(fd, &act->chanbase);
1964         link_list(fd, &act->groups);
1965         link_list(fd, &act->markers);
1966
1967         for (achan = act->chanbase.first; achan; achan=achan->next) {
1968                 achan->grp= newdataadr(fd, achan->grp);
1969
1970                 link_list(fd, &achan->constraintChannels);
1971         }
1972
1973         for (agrp = act->groups.first; agrp; agrp= agrp->next) {
1974                 if (agrp->channels.first) {
1975                         agrp->channels.first= newdataadr(fd, agrp->channels.first);
1976                         agrp->channels.last= newdataadr(fd, agrp->channels.last);
1977                 }
1978         }
1979 }
1980
1981 static void direct_link_armature(FileData *fd, bArmature *arm)
1982 {
1983         Bone    *bone;
1984
1985         link_list(fd, &arm->bonebase);
1986
1987         bone=arm->bonebase.first;
1988         while (bone) {
1989                 direct_link_bones(fd, bone);
1990                 bone=bone->next;
1991         }
1992 }
1993
1994 /* ************ READ CAMERA ***************** */
1995
1996 static void lib_link_camera(FileData *fd, Main *main)
1997 {
1998         Camera *ca;
1999
2000         ca= main->camera.first;
2001         while(ca) {
2002                 if(ca->id.flag & LIB_NEEDLINK) {
2003
2004                         ca->ipo= newlibadr_us(fd, ca->id.lib, ca->ipo);
2005
2006                         ca->dof_ob= newlibadr_us(fd, ca->id.lib, ca->dof_ob);
2007
2008                         lib_link_scriptlink(fd, &ca->id, &ca->scriptlink);
2009
2010                         ca->id.flag -= LIB_NEEDLINK;
2011                 }
2012                 ca= ca->id.next;
2013         }
2014 }
2015
2016 static void direct_link_camera(FileData *fd, Camera *ca)
2017 {
2018         direct_link_scriptlink(fd, &ca->scriptlink);
2019 }
2020
2021
2022 /* ************ READ LAMP ***************** */
2023
2024 static void lib_link_lamp(FileData *fd, Main *main)
2025 {
2026         Lamp *la;
2027         MTex *mtex;
2028         int a;
2029
2030         la= main->lamp.first;
2031         while(la) {
2032                 if(la->id.flag & LIB_NEEDLINK) {
2033
2034                         for(a=0; a<MAX_MTEX; a++) {
2035                                 mtex= la->mtex[a];
2036                                 if(mtex) {
2037                                         mtex->tex= newlibadr_us(fd, la->id.lib, mtex->tex);
2038                                         mtex->object= newlibadr(fd, la->id.lib, mtex->object);
2039                                 }
2040                         }
2041
2042                         la->ipo= newlibadr_us(fd, la->id.lib, la->ipo);
2043
2044                         lib_link_scriptlink(fd, &la->id, &la->scriptlink);
2045
2046                         la->id.flag -= LIB_NEEDLINK;
2047                 }
2048                 la= la->id.next;
2049         }
2050 }
2051
2052 static void direct_link_lamp(FileData *fd, Lamp *la)
2053 {
2054         int a;
2055
2056         direct_link_scriptlink(fd, &la->scriptlink);
2057
2058         for(a=0; a<MAX_MTEX; a++) {
2059                 la->mtex[a]= newdataadr(fd, la->mtex[a]);
2060         }
2061
2062         la->curfalloff= newdataadr(fd, la->curfalloff);
2063         if(la->curfalloff)
2064                 direct_link_curvemapping(fd, la->curfalloff);
2065
2066         la->preview = direct_link_preview_image(fd, la->preview);
2067 }
2068
2069 /* ************ READ keys ***************** */
2070
2071 static void lib_link_key(FileData *fd, Main *main)
2072 {
2073         Key *key;
2074
2075         key= main->key.first;
2076         while(key) {
2077                 if(key->id.flag & LIB_NEEDLINK) {
2078
2079                         key->ipo= newlibadr_us(fd, key->id.lib, key->ipo);
2080                         key->from= newlibadr(fd, key->id.lib, key->from);
2081
2082                         key->id.flag -= LIB_NEEDLINK;
2083                 }
2084                 key= key->id.next;
2085         }
2086 }
2087
2088 static void switch_endian_keyblock(Key *key, KeyBlock *kb)
2089 {
2090         int elemsize, a, b;
2091         char *data, *poin, *cp;
2092
2093         elemsize= key->elemsize;
2094         data= kb->data;
2095
2096         for(a=0; a<kb->totelem; a++) {
2097
2098                 cp= key->elemstr;
2099                 poin= data;
2100
2101                 while( cp[0] ) {        /* cp[0]==amount */
2102
2103                         switch(cp[1]) {         /* cp[1]= type */
2104                         case IPO_FLOAT:
2105                         case IPO_BPOINT:
2106                         case IPO_BEZTRIPLE:
2107                                 b= cp[0];
2108                                 while(b--) {
2109                                         SWITCH_INT((*poin));
2110                                         poin+= 4;
2111                                 }
2112                                 break;
2113                         }
2114
2115                         cp+= 2;
2116
2117                 }
2118                 data+= elemsize;
2119         }
2120 }
2121
2122 static void direct_link_key(FileData *fd, Key *key)
2123 {
2124         KeyBlock *kb;
2125
2126         link_list(fd, &(key->block));
2127
2128         key->refkey= newdataadr(fd, key->refkey);
2129
2130         kb= key->block.first;
2131         while(kb) {
2132
2133                 kb->data= newdataadr(fd, kb->data);
2134
2135                 if(fd->flags & FD_FLAGS_SWITCH_ENDIAN)
2136                         switch_endian_keyblock(key, kb);
2137
2138                 kb= kb->next;
2139         }
2140 }
2141
2142 /* ************ READ mball ***************** */
2143
2144 static void lib_link_mball(FileData *fd, Main *main)
2145 {
2146         MetaBall *mb;
2147         int a;
2148
2149         mb= main->mball.first;
2150         while(mb) {
2151                 if(mb->id.flag & LIB_NEEDLINK) {
2152
2153                         for(a=0; a<mb->totcol; a++) mb->mat[a]= newlibadr_us(fd, mb->id.lib, mb->mat[a]);
2154
2155                         mb->ipo= newlibadr_us(fd, mb->id.lib, mb->ipo);
2156
2157                         mb->id.flag -= LIB_NEEDLINK;
2158                 }
2159                 mb= mb->id.next;
2160         }
2161 }
2162
2163 static void direct_link_mball(FileData *fd, MetaBall *mb)
2164 {
2165         mb->mat= newdataadr(fd, mb->mat);
2166         test_pointer_array(fd, (void **)&mb->mat);
2167
2168         link_list(fd, &(mb->elems));
2169
2170         mb->disp.first= mb->disp.last= 0;
2171
2172         mb->bb= 0;
2173 }
2174
2175 /* ************ READ WORLD ***************** */
2176
2177 static void lib_link_world(FileData *fd, Main *main)
2178 {
2179         World *wrld;
2180         MTex *mtex;
2181         int a;
2182
2183         wrld= main->world.first;
2184         while(wrld) {
2185                 if(wrld->id.flag & LIB_NEEDLINK) {
2186
2187                         wrld->ipo= newlibadr_us(fd, wrld->id.lib, wrld->ipo);
2188
2189                         for(a=0; a<MAX_MTEX; a++) {
2190                                 mtex= wrld->mtex[a];
2191                                 if(mtex) {
2192                                         mtex->tex= newlibadr_us(fd, wrld->id.lib, mtex->tex);
2193                                         mtex->object= newlibadr(fd, wrld->id.lib, mtex->object);
2194                                 }
2195                         }
2196
2197                         lib_link_scriptlink(fd, &wrld->id, &wrld->scriptlink);
2198
2199                         wrld->id.flag -= LIB_NEEDLINK;
2200                 }
2201                 wrld= wrld->id.next;
2202         }
2203 }
2204
2205 static void direct_link_world(FileData *fd, World *wrld)
2206 {
2207         int a;
2208
2209         direct_link_scriptlink(fd, &wrld->scriptlink);
2210
2211         for(a=0; a<MAX_MTEX; a++) {
2212                 wrld->mtex[a]= newdataadr(fd, wrld->mtex[a]);
2213         }
2214         wrld->preview = direct_link_preview_image(fd, wrld->preview);
2215 }
2216
2217
2218 /* ************ READ IPO ***************** */
2219
2220 static void lib_link_ipo(FileData *fd, Main *main)
2221 {
2222         Ipo *ipo;
2223
2224         ipo= main->ipo.first;
2225         while(ipo) {
2226                 if(ipo->id.flag & LIB_NEEDLINK) {
2227                         IpoCurve *icu;
2228                         for(icu= ipo->curve.first; icu; icu= icu->next) {
2229                                 if(icu->driver)
2230                                         icu->driver->ob= newlibadr(fd, ipo->id.lib, icu->driver->ob);
2231                         }
2232                         ipo->id.flag -= LIB_NEEDLINK;
2233                 }
2234                 ipo= ipo->id.next;
2235         }
2236 }
2237
2238 static void direct_link_ipo(FileData *fd, Ipo *ipo)
2239 {
2240         IpoCurve *icu;
2241
2242         link_list(fd, &(ipo->curve));
2243         icu= ipo->curve.first;
2244         while(icu) {
2245                 icu->bezt= newdataadr(fd, icu->bezt);
2246                 icu->bp= newdataadr(fd, icu->bp);
2247                 icu->driver= newdataadr(fd, icu->driver);
2248                 icu= icu->next;
2249         }
2250 }
2251
2252 /* ************ READ VFONT ***************** */
2253
2254 static void lib_link_vfont(FileData *fd, Main *main)
2255 {
2256         VFont *vf;
2257
2258         vf= main->vfont.first;
2259         while(vf) {
2260                 if(vf->id.flag & LIB_NEEDLINK) {
2261                         vf->id.flag -= LIB_NEEDLINK;
2262                 }
2263                 vf= vf->id.next;
2264         }
2265 }
2266
2267 static void direct_link_vfont(FileData *fd, VFont *vf)
2268 {
2269         vf->data= NULL;
2270         vf->packedfile= direct_link_packedfile(fd, vf->packedfile);
2271 }
2272
2273 /* ************ READ TEXT ****************** */
2274
2275 static void lib_link_text(FileData *fd, Main *main)
2276 {
2277         Text *text;
2278
2279         text= main->text.first;
2280         while(text) {
2281                 if(text->id.flag & LIB_NEEDLINK) {
2282                         text->id.flag -= LIB_NEEDLINK;
2283                 }
2284                 text= text->id.next;
2285         }
2286 }
2287
2288 static void direct_link_text(FileData *fd, Text *text)
2289 {
2290         TextLine *ln;
2291
2292         text->name= newdataadr(fd, text->name);
2293
2294         text->undo_pos= -1;
2295         text->undo_len= TXT_INIT_UNDO;
2296         text->undo_buf= MEM_mallocN(text->undo_len, "undo buf");
2297
2298         text->compiled= NULL;
2299
2300 /*
2301         if(text->flags & TXT_ISEXT) {
2302                 reopen_text(text);
2303         } else {
2304 */
2305
2306         link_list(fd, &text->lines);
2307         link_list(fd, &text->markers);
2308
2309         text->curl= newdataadr(fd, text->curl);
2310         text->sell= newdataadr(fd, text->sell);
2311
2312         ln= text->lines.first;
2313         while(ln) {
2314                 ln->line= newdataadr(fd, ln->line);
2315                 ln->format= NULL;
2316
2317                 if (ln->len != (int) strlen(ln->line)) {
2318                         printf("Error loading text, line lengths differ\n");
2319                         ln->len = strlen(ln->line);
2320                 }
2321
2322                 ln= ln->next;
2323         }
2324
2325         text->flags = (text->flags|TXT_ISTMP) & ~TXT_ISEXT;
2326
2327         text->id.us= 1;
2328 }
2329
2330 /* ************ READ IMAGE ***************** */
2331
2332 static void lib_link_image(FileData *fd, Main *main)
2333 {
2334         Image *ima;
2335
2336         ima= main->image.first;
2337         while (ima) {
2338                 if(ima->id.flag & LIB_NEEDLINK) {
2339                         if (ima->id.properties) IDP_LibLinkProperty(ima->id.properties, (fd->flags & FD_FLAGS_SWITCH_ENDIAN), fd);
2340
2341                         ima->id.flag -= LIB_NEEDLINK;
2342                 }
2343                 ima= ima->id.next;
2344         }
2345 }
2346
2347 static void link_ibuf_list(FileData *fd, ListBase *lb)
2348 {
2349         Link *ln, *prev;
2350
2351         if(lb->first==NULL) return;
2352
2353         lb->first= newimaadr(fd, lb->first);
2354         ln= lb->first;
2355         prev= NULL;
2356         while(ln) {
2357                 ln->next= newimaadr(fd, ln->next);
2358                 ln->prev= prev;
2359                 prev= ln;
2360                 ln= ln->next;
2361         }
2362         lb->last= prev;
2363 }
2364
2365 static void direct_link_image(FileData *fd, Image *ima)
2366 {
2367         /* for undo system, pointers could be restored */
2368         if(fd->imamap)
2369                 link_ibuf_list(fd, &ima->ibufs);
2370         else
2371                 ima->ibufs.first= ima->ibufs.last= NULL;
2372
2373         /* if not restored, we keep the binded opengl index */
2374         if(ima->ibufs.first==NULL) {
2375                 ima->bindcode= 0;
2376                 ima->gputexture= NULL;
2377         }
2378
2379         ima->anim= NULL;
2380         ima->rr= NULL;
2381         ima->repbind= NULL;
2382
2383         ima->packedfile = direct_link_packedfile(fd, ima->packedfile);
2384         ima->preview = direct_link_preview_image(fd, ima->preview);
2385         ima->ok= 1;
2386 }
2387
2388
2389 /* ************ READ CURVE ***************** */
2390
2391 static void lib_link_curve(FileData *fd, Main *main)
2392 {
2393         Curve *cu;
2394         int a;
2395
2396         cu= main->curve.first;
2397         while(cu) {
2398                 if(cu->id.flag & LIB_NEEDLINK) {
2399
2400                         for(a=0; a<cu->totcol; a++) cu->mat[a]= newlibadr_us(fd, cu->id.lib, cu->mat[a]);
2401
2402                         cu->bevobj= newlibadr(fd, cu->id.lib, cu->bevobj);
2403                         cu->taperobj= newlibadr(fd, cu->id.lib, cu->taperobj);
2404                         cu->textoncurve= newlibadr(fd, cu->id.lib, cu->textoncurve);
2405                         cu->vfont= newlibadr_us(fd, cu->id.lib, cu->vfont);
2406                         cu->vfontb= newlibadr_us(fd, cu->id.lib, cu->vfontb);
2407                         cu->vfonti= newlibadr_us(fd, cu->id.lib, cu->vfonti);
2408                         cu->vfontbi= newlibadr_us(fd, cu->id.lib, cu->vfontbi);
2409
2410                         cu->ipo= newlibadr_us(fd, cu->id.lib, cu->ipo);
2411                         cu->key= newlibadr_us(fd, cu->id.lib, cu->key);
2412
2413                         cu->id.flag -= LIB_NEEDLINK;
2414                 }
2415                 cu= cu->id.next;
2416         }
2417 }
2418
2419
2420 static void switch_endian_knots(Nurb *nu)
2421 {
2422         int len;
2423
2424         if(nu->knotsu) {
2425                 len= KNOTSU(nu);
2426                 while(len--) {
2427                         SWITCH_INT(nu->knotsu[len]);
2428                 }
2429         }
2430         if(nu->knotsv) {
2431                 len= KNOTSV(nu);
2432                 while(len--) {
2433                         SWITCH_INT(nu->knotsv[len]);
2434                 }
2435         }
2436 }
2437
2438 static void direct_link_curve(FileData *fd, Curve *cu)
2439 {
2440         Nurb *nu;
2441         TextBox *tb;
2442
2443         cu->mat= newdataadr(fd, cu->mat);
2444         test_pointer_array(fd, (void **)&cu->mat);
2445         cu->str= newdataadr(fd, cu->str);
2446         cu->strinfo= newdataadr(fd, cu->strinfo);
2447         cu->tb= newdataadr(fd, cu->tb);
2448
2449         if(cu->vfont==0) link_list(fd, &(cu->nurb));
2450         else {
2451                 cu->nurb.first=cu->nurb.last= 0;
2452
2453                 tb= MEM_callocN(MAXTEXTBOX*sizeof(TextBox), "TextBoxread");
2454                 if (cu->tb) {
2455                         memcpy(tb, cu->tb, cu->totbox*sizeof(TextBox));
2456                         MEM_freeN(cu->tb);
2457                         cu->tb= tb;
2458                 } else {
2459                         cu->totbox = 1;
2460                         cu->actbox = 1;
2461                         cu->tb = tb;
2462                         cu->tb[0].w = cu->linewidth;
2463                 }
2464                 if (cu->wordspace == 0.0) cu->wordspace = 1.0;
2465         }
2466
2467         cu->bev.first=cu->bev.last= 0;
2468         cu->disp.first=cu->disp.last= 0;
2469         cu->path= 0;
2470
2471         nu= cu->nurb.first;
2472         while(nu) {
2473                 nu->bezt= newdataadr(fd, nu->bezt);
2474                 nu->bp= newdataadr(fd, nu->bp);
2475                 nu->knotsu= newdataadr(fd, nu->knotsu);
2476                 nu->knotsv= newdataadr(fd, nu->knotsv);
2477                 if (cu->vfont==0) nu->charidx= nu->mat_nr;
2478
2479                 if(fd->flags & FD_FLAGS_SWITCH_ENDIAN) {
2480                         switch_endian_knots(nu);
2481                 }
2482
2483                 nu= nu->next;
2484         }
2485         cu->bb= NULL;
2486 }
2487
2488 /* ************ READ TEX ***************** */
2489
2490 static void lib_link_texture(FileData *fd, Main *main)
2491 {
2492         Tex *tex;
2493
2494         tex= main->tex.first;
2495         while(tex) {
2496                 if(tex->id.flag & LIB_NEEDLINK) {
2497
2498                         tex->ima= newlibadr_us(fd, tex->id.lib, tex->ima);
2499                         tex->ipo= newlibadr_us(fd, tex->id.lib, tex->ipo);
2500                         if(tex->env) tex->env->object= newlibadr(fd, tex->id.lib, tex->env->object);
2501
2502                         if(tex->nodetree)
2503                                 lib_link_ntree(fd, &tex->id, tex->nodetree);
2504
2505                         tex->id.flag -= LIB_NEEDLINK;
2506                 }
2507                 tex= tex->id.next;
2508         }
2509 }
2510
2511 static void direct_link_texture(FileData *fd, Tex *tex)
2512 {
2513         tex->plugin= newdataadr(fd, tex->plugin);
2514         if(tex->plugin) {
2515                 tex->plugin->handle= 0;
2516                 open_plugin_tex(tex->plugin);
2517                 /* initialize data for this instance, if an initialization
2518                  * function exists.
2519                  */
2520                 if (tex->plugin->instance_init)
2521                         tex->plugin->instance_init((void *) tex->plugin->data);
2522         }
2523         tex->coba= newdataadr(fd, tex->coba);
2524         tex->env= newdataadr(fd, tex->env);
2525         if(tex->env) {
2526                 tex->env->ima= NULL;
2527                 memset(tex->env->cube, 0, 6*sizeof(void *));
2528                 tex->env->ok= 0;
2529         }
2530
2531         tex->nodetree= newdataadr(fd, tex->nodetree);
2532         if(tex->nodetree)
2533                 direct_link_nodetree(fd, tex->nodetree);
2534
2535         tex->preview = direct_link_preview_image(fd, tex->preview);
2536
2537         tex->iuser.ok= 1;
2538 }
2539
2540
2541
2542 /* ************ READ MATERIAL ***************** */
2543
2544 static void lib_link_material(FileData *fd, Main *main)
2545 {
2546         Material *ma;
2547         MTex *mtex;
2548         int a;
2549
2550         ma= main->mat.first;
2551         while(ma) {
2552                 if(ma->id.flag & LIB_NEEDLINK) {
2553                         /*Link ID Properties -- and copy this comment EXACTLY for easy finding
2554                         of library blocks that implement this.*/
2555                         if (ma->id.properties) IDP_LibLinkProperty(ma->id.properties, (fd->flags & FD_FLAGS_SWITCH_ENDIAN), fd);
2556
2557                         ma->ipo= newlibadr_us(fd, ma->id.lib, ma->ipo);
2558                         ma->group= newlibadr_us(fd, ma->id.lib, ma->group);
2559
2560                         for(a=0; a<MAX_MTEX; a++) {
2561                                 mtex= ma->mtex[a];
2562                                 if(mtex) {
2563                                         mtex->tex= newlibadr_us(fd, ma->id.lib, mtex->tex);
2564                                         mtex->object= newlibadr(fd, ma->id.lib, mtex->object);
2565                                 }
2566                         }
2567                         lib_link_scriptlink(fd, &ma->id, &ma->scriptlink);
2568
2569                         if(ma->nodetree)
2570                                 lib_link_ntree(fd, &ma->id, ma->nodetree);
2571
2572                         ma->id.flag -= LIB_NEEDLINK;
2573                 }
2574                 ma= ma->id.next;
2575         }
2576 }
2577
2578 static void direct_link_material(FileData *fd, Material *ma)
2579 {
2580         int a;
2581
2582         for(a=0; a<MAX_MTEX; a++) {
2583                 ma->mtex[a]= newdataadr(fd, ma->mtex[a]);
2584         }
2585
2586         ma->ramp_col= newdataadr(fd, ma->ramp_col);
2587         ma->ramp_spec= newdataadr(fd, ma->ramp_spec);
2588
2589         direct_link_scriptlink(fd, &ma->scriptlink);
2590
2591         ma->nodetree= newdataadr(fd, ma->nodetree);
2592         if(ma->nodetree)
2593                 direct_link_nodetree(fd, ma->nodetree);
2594
2595         ma->preview = direct_link_preview_image(fd, ma->preview);
2596         ma->gpumaterial.first = ma->gpumaterial.last = NULL;
2597 }
2598
2599 /* ************ READ PARTICLE SETTINGS ***************** */
2600
2601 static void direct_link_pointcache(FileData *fd, PointCache *cache)
2602 {
2603         cache->flag &= ~(PTCACHE_SIMULATION_VALID|PTCACHE_BAKE_EDIT_ACTIVE);
2604         cache->simframe= 0;
2605 }
2606
2607 static void lib_link_particlesettings(FileData *fd, Main *main)
2608 {
2609         ParticleSettings *part;
2610
2611         part= main->particle.first;
2612         while(part) {
2613                 if(part->id.flag & LIB_NEEDLINK) {
2614                         part->ipo= newlibadr_us(fd, part->id.lib, part->ipo);
2615                         part->dup_ob = newlibadr(fd, part->id.lib, part->dup_ob);
2616                         part->dup_group = newlibadr(fd, part->id.lib, part->dup_group);
2617                         part->eff_group = newlibadr(fd, part->id.lib, part->eff_group);
2618                         part->bb_ob = newlibadr(fd, part->id.lib, part->bb_ob);
2619                         part->id.flag -= LIB_NEEDLINK;
2620                 }
2621                 part= part->id.next;
2622         }
2623 }
2624
2625 static void direct_link_particlesettings(FileData *fd, ParticleSettings *part)
2626 {
2627         part->pd= newdataadr(fd, part->pd);
2628         part->pd2= newdataadr(fd, part->pd2);
2629 }
2630
2631 static void lib_link_particlesystems(FileData *fd, Object *ob, ID *id, ListBase *particles)
2632 {
2633         ParticleSystem *psys, *psysnext;
2634         int a;
2635
2636         for(psys=particles->first; psys; psys=psysnext){
2637                 ParticleData *pa;
2638
2639                 psysnext= psys->next;
2640
2641                 psys->part = newlibadr_us(fd, id->lib, psys->part);
2642                 if(psys->part) {
2643                         psys->target_ob = newlibadr(fd, id->lib, psys->target_ob);
2644                         psys->keyed_ob = newlibadr(fd, id->lib, psys->keyed_ob);
2645
2646                         for(a=0,pa=psys->particles; a<psys->totpart; a++,pa++){
2647                                 pa->stick_ob=newlibadr(fd, id->lib, pa->stick_ob);
2648                         }
2649                 }
2650                 else {
2651                         /* particle modifier must be removed before particle system */
2652                         ParticleSystemModifierData *psmd= psys_get_modifier(ob,psys);
2653                         BLI_remlink(&ob->modifiers, psmd);
2654                         modifier_free((ModifierData *)psmd);
2655
2656                         BLI_remlink(particles, psys);
2657                         MEM_freeN(psys);
2658                 }
2659         }
2660 }
2661 static void direct_link_particlesystems(FileData *fd, ListBase *particles)
2662 {
2663         ParticleSystem *psys;
2664         int a;
2665
2666         for(psys=particles->first; psys; psys=psys->next) {
2667                 psys->particles=newdataadr(fd,psys->particles);
2668                 if(psys->particles && psys->particles->hair){
2669                         ParticleData *pa = psys->particles;
2670                         for(a=0; a<psys->totpart; a++, pa++)
2671                                 pa->hair=newdataadr(fd,pa->hair);
2672                 }
2673                 if(psys->particles && psys->particles->keys){
2674                         ParticleData *pa = psys->particles;
2675                         for(a=0; a<psys->totpart; a++, pa++) {
2676                                 pa->keys= NULL;
2677                                 pa->totkey= 0;
2678                         }
2679
2680                         psys->flag &= ~PSYS_KEYED;
2681                 }
2682                 psys->child=newdataadr(fd,psys->child);
2683                 psys->effectors.first=psys->effectors.last=0;
2684
2685                 psys->soft= newdataadr(fd, psys->soft);
2686                 if(psys->soft) {
2687                         SoftBody *sb = psys->soft;
2688                         sb->particles = psys;
2689                         sb->bpoint= NULL;       // init pointers so it gets rebuilt nicely
2690                         sb->bspring= NULL;
2691                         sb->scratch= NULL;
2692
2693                         sb->pointcache= newdataadr(fd, sb->pointcache);
2694                         if(sb->pointcache)
2695                                 direct_link_pointcache(fd, sb->pointcache);
2696                 }
2697
2698                 psys->edit = 0;
2699                 psys->pathcache = 0;
2700                 psys->childcache = 0;
2701                 psys->pathcachebufs.first = psys->pathcachebufs.last = 0;
2702                 psys->childcachebufs.first = psys->childcachebufs.last = 0;
2703                 psys->reactevents.first = psys->reactevents.last = 0;
2704
2705                 psys->pointcache= newdataadr(fd, psys->pointcache);
2706                 if(psys->pointcache)
2707                         direct_link_pointcache(fd, psys->pointcache);
2708         }
2709         return;
2710 }
2711
2712 /* ************ READ MESH ***************** */
2713
2714 static void lib_link_mtface(FileData *fd, Mesh *me, MTFace *mtface, int totface)
2715 {
2716         MTFace *tf= mtface;
2717         int i;
2718
2719         for (i=0; i<totface; i++, tf++) {
2720                 tf->tpage= newlibadr(fd, me->id.lib, tf->tpage);
2721                 if(tf->tpage && tf->tpage->id.us==0)
2722                         tf->tpage->id.us= 1;
2723         }
2724 }
2725
2726 static void lib_link_customdata_mtface(FileData *fd, Mesh *me, CustomData *fdata, int totface)
2727 {
2728         int i;
2729         for(i=0; i<fdata->totlayer; i++) {
2730                 CustomDataLayer *layer = &fdata->layers[i];
2731
2732                 if(layer->type == CD_MTFACE)
2733                         lib_link_mtface(fd, me, layer->data, totface);
2734         }
2735
2736 }
2737
2738 static void lib_link_mesh(FileData *fd, Main *main)
2739 {
2740         Mesh *me;
2741
2742         me= main->mesh.first;
2743         while(me) {
2744                 if(me->id.flag & LIB_NEEDLINK) {
2745                         int i;
2746
2747                         /*Link ID Properties -- and copy this comment EXACTLY for easy finding
2748                         of library blocks that implement this.*/
2749                         if (me->id.properties) IDP_LibLinkProperty(me->id.properties, (fd->flags & FD_FLAGS_SWITCH_ENDIAN), fd);
2750
2751                         /* this check added for python created meshes */
2752                         if(me->mat) {
2753                                 for(i=0; i<me->totcol; i++) {
2754                                         me->mat[i]= newlibadr_us(fd, me->id.lib, me->mat[i]);
2755                                 }
2756                         }
2757                         else me->totcol= 0;
2758
2759                         me->ipo= newlibadr_us(fd, me->id.lib, me->ipo);
2760                         me->key= newlibadr_us(fd, me->id.lib, me->key);
2761                         me->texcomesh= newlibadr_us(fd, me->id.lib, me->texcomesh);
2762
2763                         lib_link_customdata_mtface(fd, me, &me->fdata, me->totface);
2764                         if(me->mr && me->mr->levels.first)
2765                                 lib_link_customdata_mtface(fd, me, &me->mr->fdata,
2766                                                            ((MultiresLevel*)me->mr->levels.first)->totface);
2767
2768                         me->id.flag -= LIB_NEEDLINK;
2769                 }
2770                 me= me->id.next;
2771         }
2772 }
2773
2774 static void direct_link_dverts(FileData *fd, int count, MDeformVert *mdverts)
2775 {
2776         int     i;
2777
2778         if (!mdverts)
2779                 return;
2780
2781         for (i=0; i<count; i++) {
2782                 mdverts[i].dw=newdataadr(fd, mdverts[i].dw);
2783                 if (!mdverts[i].dw)
2784                         mdverts[i].totweight=0;
2785         }
2786 }
2787
2788 static void direct_link_customdata(FileData *fd, CustomData *data, int count)
2789 {
2790         int i = 0;
2791
2792         data->layers= newdataadr(fd, data->layers);
2793
2794         while (i < data->totlayer) {
2795                 CustomDataLayer *layer = &data->layers[i];
2796
2797                 if (CustomData_verify_versions(data, i)) {
2798                         layer->data = newdataadr(fd, layer->data);
2799                         i++;
2800                 }
2801         }
2802 }
2803
2804 static void direct_link_mesh(FileData *fd, Mesh *mesh)
2805 {
2806         mesh->mat= newdataadr(fd, mesh->mat);
2807         test_pointer_array(fd, (void **)&mesh->mat);
2808
2809         mesh->mvert= newdataadr(fd, mesh->mvert);
2810         mesh->medge= newdataadr(fd, mesh->medge);
2811         mesh->mface= newdataadr(fd, mesh->mface);
2812         mesh->tface= newdataadr(fd, mesh->tface);
2813         mesh->mtface= newdataadr(fd, mesh->mtface);
2814         mesh->mcol= newdataadr(fd, mesh->mcol);
2815         mesh->msticky= newdataadr(fd, mesh->msticky);
2816         mesh->dvert= newdataadr(fd, mesh->dvert);
2817
2818         /* Partial-mesh visibility (do this before using totvert, totface, or totedge!) */
2819         mesh->pv= newdataadr(fd, mesh->pv);
2820         if(mesh->pv) {
2821                 mesh->pv->vert_map= newdataadr(fd, mesh->pv->vert_map);
2822                 mesh->pv->edge_map= newdataadr(fd, mesh->pv->edge_map);
2823                 mesh->pv->old_faces= newdataadr(fd, mesh->pv->old_faces);
2824                 mesh->pv->old_edges= newdataadr(fd, mesh->pv->old_edges);
2825         }
2826
2827         /* normally direct_link_dverts should be called in direct_link_customdata,
2828            but for backwards compat in do_versions to work we do it here */
2829         direct_link_dverts(fd, mesh->pv ? mesh->pv->totvert : mesh->totvert, mesh->dvert);
2830
2831         direct_link_customdata(fd, &mesh->vdata, mesh->pv ? mesh->pv->totvert : mesh->totvert);
2832         direct_link_customdata(fd, &mesh->edata, mesh->pv ? mesh->pv->totedge : mesh->totedge);
2833         direct_link_customdata(fd, &mesh->fdata, mesh->pv ? mesh->pv->totface : mesh->totface);
2834
2835         mesh->bb= NULL;
2836         mesh->mselect = NULL;
2837
2838         /* Multires data */
2839         mesh->mr= newdataadr(fd, mesh->mr);
2840         if(mesh->mr) {
2841                 MultiresLevel *lvl;
2842
2843                 link_list(fd, &mesh->mr->levels);
2844                 lvl= mesh->mr->levels.first;
2845
2846                 direct_link_customdata(fd, &mesh->mr->vdata, lvl->totvert);
2847                 direct_link_dverts(fd, lvl->totvert, CustomData_get(&mesh->mr->vdata, 0, CD_MDEFORMVERT));
2848                 direct_link_customdata(fd, &mesh->mr->fdata, lvl->totface);
2849
2850                 if(mesh->mr->edge_flags)
2851                         mesh->mr->edge_flags= newdataadr(fd, mesh->mr->edge_flags);
2852                 if(mesh->mr->edge_creases)
2853                         mesh->mr->edge_creases= newdataadr(fd, mesh->mr->edge_creases);
2854
2855                 if(!mesh->mr->edge_flags)
2856                         mesh->mr->edge_flags= MEM_callocN(sizeof(short)*lvl->totedge, "Multires Edge Flags");
2857                 if(!mesh->mr->edge_creases)
2858                         mesh->mr->edge_creases= MEM_callocN(sizeof(char)*lvl->totedge, "Multires Edge Creases");
2859
2860                 mesh->mr->verts = newdataadr(fd, mesh->mr->verts);
2861
2862                 for(; lvl; lvl= lvl->next) {
2863                         lvl->verts= newdataadr(fd, lvl->verts);
2864                         lvl->faces= newdataadr(fd, lvl->faces);
2865                         lvl->edges= newdataadr(fd, lvl->edges);
2866                         lvl->colfaces= newdataadr(fd, lvl->colfaces);
2867                         lvl->edge_boundary_states= NULL;
2868                         lvl->vert_face_map = lvl->vert_edge_map = NULL;
2869                         lvl->map_mem= NULL;
2870                 }
2871         }
2872
2873         if((fd->flags & FD_FLAGS_SWITCH_ENDIAN) && mesh->tface) {
2874                 TFace *tf= mesh->tface;
2875                 int i;
2876
2877                 for (i=0; i< (mesh->pv ? mesh->pv->totface : mesh->totface); i++, tf++) {
2878                         SWITCH_INT(tf->col[0]);
2879                         SWITCH_INT(tf->col[1]);
2880                         SWITCH_INT(tf->col[2]);
2881                         SWITCH_INT(tf->col[3]);
2882                 }
2883         }
2884 }
2885
2886 /* ************ READ LATTICE ***************** */
2887
2888 static void lib_link_latt(FileData *fd, Main *main)
2889 {
2890         Lattice *lt;
2891
2892         lt= main->latt.first;
2893         while(lt) {
2894                 if(lt->id.flag & LIB_NEEDLINK) {
2895
2896                         lt->ipo= newlibadr_us(fd, lt->id.lib, lt->ipo);
2897                         lt->key= newlibadr_us(fd, lt->id.lib, lt->key);
2898
2899                         lt->id.flag -= LIB_NEEDLINK;
2900                 }
2901                 lt= lt->id.next;
2902         }
2903 }
2904
2905 static void direct_link_latt(FileData *fd, Lattice *lt)
2906 {
2907         lt->def= newdataadr(fd, lt->def);
2908
2909         lt->dvert= newdataadr(fd, lt->dvert);
2910         direct_link_dverts(fd, lt->pntsu*lt->pntsv*lt->pntsw, lt->dvert);
2911 }
2912
2913
2914 /* ************ READ OBJECT ***************** */
2915
2916 static void lib_link_modifiers__linkModifiers(void *userData, Object *ob,
2917                                               ID **idpoin)
2918 {
2919         FileData *fd = userData;
2920
2921         *idpoin = newlibadr(fd, ob->id.lib, *idpoin);
2922         /* hardcoded bad exception; non-object modifier data gets user count (texture, displace) */
2923         if(*idpoin && GS((*idpoin)->name)!=ID_OB)
2924                 (*idpoin)->us++;
2925 }
2926 static void lib_link_modifiers(FileData *fd, Object *ob)
2927 {
2928         modifiers_foreachIDLink(ob, lib_link_modifiers__linkModifiers, fd);
2929 }
2930
2931 static void lib_link_object(FileData *fd, Main *main)
2932 {
2933         Object *ob;
2934         PartEff *paf;
2935         bSensor *sens;
2936         bController *cont;
2937         bActuator *act;
2938         void *poin;
2939         int warn=0, a;
2940
2941         ob= main->object.first;
2942         while(ob) {
2943                 if(ob->id.flag & LIB_NEEDLINK) {
2944                         if (ob->id.properties) IDP_LibLinkProperty(ob->id.properties, (fd->flags & FD_FLAGS_SWITCH_ENDIAN), fd);
2945
2946                         ob->parent= newlibadr(fd, ob->id.lib, ob->parent);
2947                         ob->track= newlibadr(fd, ob->id.lib, ob->track);
2948                         ob->ipo= newlibadr_us(fd, ob->id.lib, ob->ipo);
2949                         ob->action = newlibadr_us(fd, ob->id.lib, ob->action);
2950                         ob->poselib= newlibadr_us(fd, ob->id.lib, ob->poselib);
2951                         ob->dup_group= newlibadr_us(fd, ob->id.lib, ob->dup_group);
2952
2953                         ob->proxy= newlibadr_us(fd, ob->id.lib, ob->proxy);
2954                         if(ob->proxy) {
2955                                 /* paranoia check, actually a proxy_from pointer should never be written... */
2956                                 if(ob->proxy->id.lib==NULL) {
2957                                         ob->proxy->proxy_from= NULL;
2958                                         ob->proxy= NULL;
2959                                 }
2960                                 else {
2961                                         /* this triggers object_update to always use a copy */
2962                                         ob->proxy->proxy_from= ob;
2963                                         /* force proxy updates after load/undo, a bit weak */
2964                                         ob->recalc= ob->proxy->recalc= OB_RECALC;
2965                                 }
2966                         }
2967                         ob->proxy_group= newlibadr(fd, ob->id.lib, ob->proxy_group);
2968
2969                         poin= ob->data;
2970                         ob->data= newlibadr_us(fd, ob->id.lib, ob->data);
2971
2972                         if(ob->data==NULL && poin!=NULL) {
2973                                 ob->type= OB_EMPTY;
2974                                 warn= 1;
2975                                 if(ob->id.lib) printf("Can't find obdata of %s lib %s\n", ob->id.name+2, ob->id.lib->name);
2976                                 else printf("Object %s lost data.", ob->id.name+2);
2977
2978                                 if(ob->pose) {
2979                                         free_pose(ob->pose);
2980                                         ob->pose= NULL;
2981                                         ob->flag &= ~OB_POSEMODE;
2982                                 }
2983                         }
2984                         for(a=0; a<ob->totcol; a++) ob->mat[a]= newlibadr_us(fd, ob->id.lib, ob->mat[a]);
2985
2986                         ob->id.flag -= LIB_NEEDLINK;
2987                         /* if id.us==0 a new base will be created later on */
2988
2989                         /* WARNING! Also check expand_object(), should reflect the stuff below. */
2990                         lib_link_pose(fd, ob, ob->pose);
2991                         lib_link_constraints(fd, &ob->id, &ob->constraints);
2992                         lib_link_nlastrips(fd, &ob->id, &ob->nlastrips);
2993                         lib_link_constraint_channels(fd, &ob->id, &ob->constraintChannels);
2994
2995                         for(paf= ob->effect.first; paf; paf= paf->next) {
2996                                 if(paf->type==EFF_PARTICLE) {
2997                                         paf->group= newlibadr_us(fd, ob->id.lib, paf->group);
2998                                 }
2999                         }
3000
3001                         sens= ob->sensors.first;
3002                         while(sens) {
3003                                 for(a=0; a<sens->totlinks; a++)
3004                                         sens->links[a]= newglobadr(fd, sens->links[a]);
3005
3006                                 if(sens->type==SENS_TOUCH) {
3007                                         bTouchSensor *ts= sens->data;
3008                                         ts->ma= newlibadr(fd, ob->id.lib, ts->ma);
3009                                 }
3010                                 else if(sens->type==SENS_MESSAGE) {
3011                                         bMessageSensor *ms= sens->data;
3012                                         ms->fromObject=
3013                                             newlibadr(fd, ob->id.lib, ms->fromObject);
3014                                 }
3015                                 sens= sens->next;
3016                         }
3017
3018                         cont= ob->controllers.first;
3019                         while(cont) {
3020                                 for(a=0; a<cont->totlinks; a++)
3021                                         cont->links[a]= newglobadr(fd, cont->links[a]);
3022
3023                                 if(cont->type==CONT_PYTHON) {
3024                                         bPythonCont *pc= cont->data;
3025                                         pc->text= newlibadr(fd, ob->id.lib, pc->text);
3026                                 }
3027                                 cont->slinks= NULL;
3028                                 cont->totslinks= 0;
3029
3030                                 cont= cont->next;
3031                         }
3032
3033                         act= ob->actuators.first;
3034                         while(act) {
3035                                 if(act->type==ACT_SOUND) {
3036                                         bSoundActuator *sa= act->data;
3037                                         sa->sound= newlibadr_us(fd, ob->id.lib, sa->sound);
3038                                 }
3039                                 else if(act->type==ACT_CD) {
3040                                         /* bCDActuator *cda= act->data; */
3041                                 }
3042                                 else if(act->type==ACT_GAME) {
3043                                         /* bGameActuator *ga= act->data; */
3044                                 }
3045                                 else if(act->type==ACT_CAMERA) {
3046                                         bCameraActuator *ca= act->data;
3047                                         ca->ob= newlibadr(fd, ob->id.lib, ca->ob);
3048                                 }
3049                                         /* leave this one, it's obsolete but necessary to read for conversion */
3050                                 else if(act->type==ACT_ADD_OBJECT) {
3051                                         bAddObjectActuator *eoa= act->data;
3052                                         if(eoa) eoa->ob= newlibadr(fd, ob->id.lib, eoa->ob);
3053                                 }
3054                                 else if(act->type==ACT_EDIT_OBJECT) {
3055                                         bEditObjectActuator *eoa= act->data;
3056                                         if(eoa==NULL) {
3057                                                 init_actuator(act);
3058                                         }
3059                                         else {
3060                                                 eoa->ob= newlibadr(fd, ob->id.lib, eoa->ob);
3061                                                 eoa->me= newlibadr(fd, ob->id.lib, eoa->me);
3062                                         }
3063                                 }
3064                                 else if(act->type==ACT_SCENE) {
3065                                         bSceneActuator *sa= act->data;
3066                                         sa->camera= newlibadr(fd, ob->id.lib, sa->camera);
3067                                         sa->scene= newlibadr(fd, ob->id.lib, sa->scene);
3068                                 }
3069                                 else if(act->type==ACT_ACTION) {
3070                                         bActionActuator *aa= act->data;
3071                                         aa->act= newlibadr(fd, ob->id.lib, aa->act);
3072                                 }
3073                                 else if(act->type==ACT_SHAPEACTION) {
3074                                         bActionActuator *aa= act->data;
3075                                         aa->act= newlibadr(fd, ob->id.lib, aa->act);
3076                                 }
3077                                 else if(act->type==ACT_PROPERTY) {
3078                                         bPropertyActuator *pa= act->data;
3079                                         pa->ob= newlibadr(fd, ob->id.lib, pa->ob);
3080                                 }
3081                                 else if(act->type==ACT_MESSAGE) {
3082                                         bMessageActuator *ma= act->data;
3083                                         ma->toObject= newlibadr(fd, ob->id.lib, ma->toObject);
3084                                 }
3085                                 else if(act->type==ACT_2DFILTER){
3086                                         bTwoDFilterActuator *_2dfa = act->data;
3087                                         _2dfa->text= newlibadr(fd, ob->id.lib, _2dfa->text);
3088                                 }
3089                                 else if(act->type==ACT_PARENT) {
3090                                         bParentActuator *parenta = act->data;
3091                                         parenta->ob = newlibadr(fd, ob->id.lib, parenta->ob);
3092                                 }
3093                                 else if(act->type==ACT_STATE) {
3094                                         /* bStateActuator *statea = act->data; */
3095                                 }
3096                                 act= act->next;
3097                         }
3098
3099                         {
3100                                 FluidsimModifierData *fluidmd = (FluidsimModifierData *)modifiers_findByType(ob, eModifierType_Fluidsim);
3101
3102                                 if(fluidmd && fluidmd->fss)
3103                                         fluidmd->fss->ipo = newlibadr_us(fd, ob->id.lib, fluidmd->fss->ipo);
3104                         }
3105
3106                         /* texture field */
3107                         if(ob->pd)
3108                                 if(ob->pd->tex)
3109                                         ob->pd->tex=newlibadr_us(fd, ob->id.lib, ob->pd->tex);
3110
3111                         lib_link_scriptlink(fd, &ob->id, &ob->scriptlink);
3112                         lib_link_particlesystems(fd, ob, &ob->id, &ob->particlesystem);
3113                         lib_link_modifiers(fd, ob);
3114                 }
3115                 ob= ob->id.next;
3116         }
3117
3118         if(warn) error("WARNING IN CONSOLE");
3119 }
3120
3121
3122 static void direct_link_pose(FileData *fd, bPose *pose)
3123 {
3124         bPoseChannel *pchan;
3125
3126         if (!pose)
3127                 return;
3128
3129         link_list(fd, &pose->chanbase);
3130         link_list(fd, &pose->agroups);
3131
3132         for (pchan = pose->chanbase.first; pchan; pchan=pchan->next) {
3133                 pchan->bone= NULL;
3134                 pchan->parent= newdataadr(fd, pchan->parent);
3135                 pchan->child= newdataadr(fd, pchan->child);
3136                 direct_link_constraints(fd, &pchan->constraints);
3137                 pchan->iktree.first= pchan->iktree.last= NULL;
3138                 pchan->path= NULL;
3139         }
3140 }
3141
3142 static void direct_link_modifiers(FileData *fd, ListBase *lb)
3143 {
3144         ModifierData *md;
3145
3146         link_list(fd, lb);
3147
3148         for (md=lb->first; md; md=md->next) {
3149                 md->error = NULL;
3150
3151                 /* if modifiers disappear, or for upward compatibility */
3152                 if(NULL==modifierType_getInfo(md->type))
3153                         md->type= eModifierType_None;
3154
3155                 if (md->type==eModifierType_Subsurf) {
3156                         SubsurfModifierData *smd = (SubsurfModifierData*) md;
3157
3158                         smd->emCache = smd->mCache = 0;
3159                 }
3160                 else if (md->type==eModifierType_Cloth) {
3161                         ClothModifierData *clmd = (ClothModifierData*) md;
3162
3163                         clmd->c