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  *
  24  * Contributor(s): Blender Foundation
  25  *
  26  * ***** END GPL LICENSE BLOCK *****
  27  *
  28  */
  29
  30 #include "zlib.h"
  31
  32 #include <limits.h>
  33 #include <stdio.h> // for printf fopen fwrite fclose sprintf FILE
  34 #include <stdlib.h> // for getenv atoi
  35 #include <fcntl.h> // for open
  36 #include <string.h> // for strrchr strncmp strstr
  37 #include <math.h> // for fabs
  38
  39 #ifndef WIN32
  40     #include <unistd.h> // for read close
  41     #include <sys/param.h> // for MAXPATHLEN
  42 #else
  43     #include <io.h> // for open close read
  44 #include "winsock2.h"
  45 #include "BLI_winstuff.h"
  46 #endif
  47
  48 #include "DNA_anim_types.h"
  49 #include "DNA_action_types.h"
  50 #include "DNA_armature_types.h"
  51 #include "DNA_ID.h"
  52 #include "DNA_actuator_types.h"
  53 #include "DNA_boid_types.h"
  54 #include "DNA_brush_types.h"
  55 #include "DNA_camera_types.h"
  56 #include "DNA_cloth_types.h"
  57 #include "DNA_color_types.h"
  58 #include "DNA_controller_types.h"
  59 #include "DNA_constraint_types.h"
  60 #include "DNA_curve_types.h"
  61 #include "DNA_customdata_types.h"
  62 #include "DNA_effect_types.h"
  63 #include "DNA_fileglobal_types.h"
  64 #include "DNA_genfile.h"
  65 #include "DNA_group_types.h"
  66 #include "DNA_gpencil_types.h"
  67 #include "DNA_ipo_types.h"
  68 #include "DNA_image_types.h"
  69 #include "DNA_key_types.h"
  70 #include "DNA_lattice_types.h"
  71 #include "DNA_lamp_types.h"
  72 #include "DNA_meta_types.h"
  73 #include "DNA_material_types.h"
  74 #include "DNA_mesh_types.h"
  75 #include "DNA_meshdata_types.h"
  76 #include "DNA_modifier_types.h"
  77 #include "DNA_nla_types.h"
  78 #include "DNA_node_types.h"
  79 #include "DNA_object_types.h"
  80 #include "DNA_object_force.h"
  81 #include "DNA_object_fluidsim.h" // NT
  82 #include "DNA_outliner_types.h"
  83 #include "DNA_object_force.h"
  84 #include "DNA_packedFile_types.h"
  85 #include "DNA_particle_types.h"
  86 #include "DNA_property_types.h"
  87 #include "DNA_text_types.h"
  88 #include "DNA_view3d_types.h"
  89 #include "DNA_screen_types.h"
  90 #include "DNA_sensor_types.h"
  91 #include "DNA_sdna_types.h"
  92 #include "DNA_scene_types.h"
  93 #include "DNA_sequence_types.h"
  94 #include "DNA_smoke_types.h"
  95 #include "DNA_sound_types.h"
  96 #include "DNA_space_types.h"
  97 #include "DNA_texture_types.h"
  98 #include "DNA_userdef_types.h"
  99 #include "DNA_vfont_types.h"
 100 #include "DNA_world_types.h"
 101 #include "DNA_windowmanager_types.h"
 102
 103 #include "MEM_guardedalloc.h"
 104 #include "BLI_blenlib.h"
 105 #include "BLI_arithb.h"
 106 #include "BLI_storage_types.h" // for relname flags
 107
 108 #include "BKE_animsys.h"
 109 #include "BKE_action.h"
 110 #include "BKE_armature.h"
 111 #include "BKE_brush.h"
 112 #include "BKE_cdderivedmesh.h"
 113 #include "BKE_cloth.h"
 114 #include "BKE_colortools.h"
 115 #include "BKE_constraint.h"
 116 #include "BKE_context.h"
 117 #include "BKE_curve.h"
 118 #include "BKE_customdata.h"
 119 #include "BKE_deform.h"
 120 #include "BKE_depsgraph.h"
 121 #include "BKE_effect.h" /* give_parteff */
 122 #include "BKE_fcurve.h"
 123 #include "BKE_global.h" // for G
 124 #include "BKE_group.h"
 125 #include "BKE_image.h"
 126 #include "BKE_ipo.h"
 127 #include "BKE_lattice.h"
 128 #include "BKE_library.h" // for wich_libbase
 129 #include "BKE_main.h" // for Main
 130 #include "BKE_mesh.h" // for ME_ defines (patching)
 131 #include "BKE_modifier.h"
 132 #include "BKE_multires.h"
 133 #include "BKE_node.h" // for tree type defines
 134 #include "BKE_object.h"
 135 #include "BKE_paint.h"
 136 #include "BKE_particle.h"
 137 #include "BKE_pointcache.h"
 138 #include "BKE_property.h" // for get_ob_property
 139 #include "BKE_report.h"
 140 #include "BKE_sca.h" // for init_actuator
 141 #include "BKE_scene.h"
 142 #include "BKE_softbody.h"       // sbNew()
 143 #include "BKE_bullet.h"         // bsbNew()
 144 #include "BKE_sequence.h"
 145 #include "BKE_texture.h" // for open_plugin_tex
 146 #include "BKE_utildefines.h" // SWITCH_INT DATA ENDB DNA1 O_BINARY GLOB USER TEST REND
 147 #include "BKE_idprop.h"
 148
 149 #include "BKE_sound.h"
 150
 151 //XXX #include "BIF_butspace.h" // badlevel, for do_versions, patching event codes
 152 //XXX #include "BIF_filelist.h" // badlevel too, where to move this? - elubie
 153 //XXX #include "BIF_previewrender.h" // bedlelvel, for struct RenderInfo
 154 #include "BLO_readfile.h"
 155 #include "BLO_undofile.h"
 156 #include "BLO_readblenfile.h" // streaming read pipe, for BLO_readblenfile BLO_readblenfilememory
 157
 158 #include "readfile.h"
 159
 160 #include "PIL_time.h"
 161
 162 #include <errno.h>
 163
 164 /*
 165  Remark: still a weak point is the newadress() function, that doesnt solve reading from
 166  multiple files at the same time
 167
 168  (added remark: oh, i thought that was solved? will look at that... (ton)
 169
 170 READ
 171 - Existing Library (Main) push or free
 172 - allocate new Main
 173 - load file
 174 - read SDNA
 175 - for each LibBlock
 176         - read LibBlock
 177         - if a Library
 178                 - make a new Main
 179                 - attach ID's to it
 180         - else
 181                 - read associated 'direct data'
 182                 - link direct data (internal and to LibBlock)
 183 - read FileGlobal
 184 - read USER data, only when indicated (file is ~/.B.blend or .B25.blend)
 185 - free file
 186 - per Library (per Main)
 187         - read file
 188         - read SDNA
 189         - find LibBlocks and attach IDs to Main
 190                 - if external LibBlock
 191                         - search all Main's
 192                                 - or it's already read,
 193                                 - or not read yet
 194                                 - or make new Main
 195         - per LibBlock
 196                 - read recursive
 197                 - read associated direct data
 198                 - link direct data (internal and to LibBlock)
 199         - free file
 200 - per Library with unread LibBlocks
 201         - read file
 202         - read SDNA
 203         - per LibBlock
 204                - read recursive
 205                - read associated direct data
 206                - link direct data (internal and to LibBlock)
 207         - free file
 208 - join all Mains
 209 - link all LibBlocks and indirect pointers to libblocks
 210 - initialize FileGlobal and copy pointers to Global
 211 */
 212
 213 /* also occurs in library.c */
 214 /* GS reads the memory pointed at in a specific ordering. There are,
 215  * however two definitions for it. I have jotted them down here, both,
 216  * but I think the first one is actually used. The thing is that
 217  * big-endian systems might read this the wrong way round. OTOH, we
 218  * constructed the IDs that are read out with this macro explicitly as
 219  * well. I expect we'll sort it out soon... */
 220
 221 /* from blendef: */
 222 #define GS(a)   (*((short *)(a)))
 223
 224 /* from misc_util: flip the bytes from x  */
 225 /*  #define GS(x) (((unsigned char *)(x))[0] << 8 | ((unsigned char *)(x))[1]) */
 226
 227 // only used here in readfile.c
 228 #define SWITCH_LONGINT(a) { \
 229     char s_i, *p_i; \
 230     p_i= (char *)&(a);  \
 231     s_i=p_i[0]; p_i[0]=p_i[7]; p_i[7]=s_i; \
 232     s_i=p_i[1]; p_i[1]=p_i[6]; p_i[6]=s_i; \
 233     s_i=p_i[2]; p_i[2]=p_i[5]; p_i[5]=s_i; \
 234     s_i=p_i[3]; p_i[3]=p_i[4]; p_i[4]=s_i; }
 235
 236 /***/
 237
 238 typedef struct OldNew {
 239         void *old, *newp;
 240         int nr;
 241 } OldNew;
 242
 243 typedef struct OldNewMap {
 244         OldNew *entries;
 245         int nentries, entriessize;
 246         int sorted;
 247         int lasthit;
 248 } OldNewMap;
 249
 250
 251 /* local prototypes */
 252 static void *read_struct(FileData *fd, BHead *bh, char *blockname);
 253
 254
 255 static OldNewMap *oldnewmap_new(void)
 256 {
 257         OldNewMap *onm= MEM_callocN(sizeof(*onm), "OldNewMap");
 258
 259         onm->entriessize= 1024;
 260         onm->entries= MEM_mallocN(sizeof(*onm->entries)*onm->entriessize, "OldNewMap.entries");
 261
 262         return onm;
 263 }
 264
 265 static int verg_oldnewmap(const void *v1, const void *v2)
 266 {
 267         const struct OldNew *x1=v1, *x2=v2;
 268
 269         if( x1->old > x2->old) return 1;
 270         else if( x1->old < x2->old) return -1;
 271         return 0;
 272 }
 273
 274
 275 static void oldnewmap_sort(FileData *fd)
 276 {
 277         qsort(fd->libmap->entries, fd->libmap->nentries, sizeof(OldNew), verg_oldnewmap);
 278         fd->libmap->sorted= 1;
 279 }
 280
 281 /* nr is zero for data, and ID code for libdata */
 282 static void oldnewmap_insert(OldNewMap *onm, void *oldaddr, void *newaddr, int nr)
 283 {
 284         OldNew *entry;
 285
 286         if(oldaddr==NULL || newaddr==NULL) return;
 287
 288         if (onm->nentries==onm->entriessize) {
 289                 int osize= onm->entriessize;
 290                 OldNew *oentries= onm->entries;
 291
 292                 onm->entriessize*= 2;
 293                 onm->entries= MEM_mallocN(sizeof(*onm->entries)*onm->entriessize, "OldNewMap.entries");
 294
 295                 memcpy(onm->entries, oentries, sizeof(*oentries)*osize);
 296                 MEM_freeN(oentries);
 297         }
 298
 299         entry= &onm->entries[onm->nentries++];
 300         entry->old= oldaddr;
 301         entry->newp= newaddr;
 302         entry->nr= nr;
 303 }
 304
 305 static void *oldnewmap_lookup_and_inc(OldNewMap *onm, void *addr)
 306 {
 307         int i;
 308
 309         if (onm->lasthit<onm->nentries-1) {
 310                 OldNew *entry= &onm->entries[++onm->lasthit];
 311
 312                 if (entry->old==addr) {
 313                         entry->nr++;
 314                         return entry->newp;
 315                 }
 316         }
 317
 318         for (i=0; i<onm->nentries; i++) {
 319                 OldNew *entry= &onm->entries[i];
 320
 321                 if (entry->old==addr) {
 322                         onm->lasthit= i;
 323
 324                         entry->nr++;
 325                         return entry->newp;
 326                 }
 327         }
 328
 329         return NULL;
 330 }
 331
 332 /* for libdata, nr has ID code, no increment */
 333 static void *oldnewmap_liblookup(OldNewMap *onm, void *addr, void *lib)
 334 {
 335         int i;
 336
 337         if(addr==NULL) return NULL;
 338
 339         /* lasthit works fine for non-libdata, linking there is done in same sequence as writing */
 340         if(onm->sorted) {
 341                 OldNew entry_s, *entry;
 342
 343                 entry_s.old= addr;
 344
 345                 entry= bsearch(&entry_s, onm->entries, onm->nentries, sizeof(OldNew), verg_oldnewmap);
 346                 if(entry) {
 347                         ID *id= entry->newp;
 348
 349                         if (id && (!lib || id->lib)) {
 350                                 return entry->newp;
 351                         }
 352                 }
 353         }
 354
 355         for (i=0; i<onm->nentries; i++) {
 356                 OldNew *entry= &onm->entries[i];
 357
 358                 if (entry->old==addr) {
 359                         ID *id= entry->newp;
 360
 361                         if (id && (!lib || id->lib)) {
 362                                 return entry->newp;
 363                         }
 364                 }
 365         }
 366
 367         return NULL;
 368 }
 369
 370 static void oldnewmap_free_unused(OldNewMap *onm)
 371 {
 372         int i;
 373
 374         for (i=0; i<onm->nentries; i++) {
 375                 OldNew *entry= &onm->entries[i];
 376                 if (entry->nr==0) {
 377                         MEM_freeN(entry->newp);
 378                         entry->newp= NULL;
 379                 }
 380         }
 381 }
 382
 383 static void oldnewmap_clear(OldNewMap *onm)
 384 {
 385         onm->nentries= 0;
 386         onm->lasthit= 0;
 387 }
 388
 389 static void oldnewmap_free(OldNewMap *onm)
 390 {
 391         MEM_freeN(onm->entries);
 392         MEM_freeN(onm);
 393 }
 394
 395 /***/
 396
 397 static void read_libraries(FileData *basefd, ListBase *mainlist);
 398
 399 /* ************ help functions ***************** */
 400
 401 static void add_main_to_main(Main *mainvar, Main *from)
 402 {
 403         ListBase *lbarray[MAX_LIBARRAY], *fromarray[MAX_LIBARRAY];
 404         int a;
 405
 406         a= set_listbasepointers(mainvar, lbarray);
 407         a= set_listbasepointers(from, fromarray);
 408         while(a--) {
 409                 addlisttolist(lbarray[a], fromarray[a]);
 410         }
 411 }
 412
 413 void blo_join_main(ListBase *mainlist)
 414 {
 415         Main *tojoin, *mainl;
 416
 417
 418         mainl= mainlist->first;
 419         while ((tojoin= mainl->next)) {
 420                 add_main_to_main(mainl, tojoin);
 421                 BLI_remlink(mainlist, tojoin);
 422                 MEM_freeN(tojoin);
 423         }
 424 }
 425
 426 static void split_libdata(ListBase *lb, Main *first)
 427 {
 428         ListBase *lbn;
 429         ID *id, *idnext;
 430         Main *mainvar;
 431
 432         id= lb->first;
 433         while(id) {
 434                 idnext= id->next;
 435                 if(id->lib) {
 436                         mainvar= first;
 437                         while(mainvar) {
 438                                 if(mainvar->curlib==id->lib) {
 439                                         lbn= wich_libbase(mainvar, GS(id->name));
 440                                         BLI_remlink(lb, id);
 441                                         BLI_addtail(lbn, id);
 442                                         break;
 443                                 }
 444                                 mainvar= mainvar->next;
 445                         }
 446                         if(mainvar==0) printf("error split_libdata\n");
 447                 }
 448                 id= idnext;
 449         }
 450 }
 451
 452 void blo_split_main(ListBase *mainlist, Main *main)
 453 {
 454         ListBase *lbarray[MAX_LIBARRAY];
 455         Library *lib;
 456         int i;
 457
 458         mainlist->first= mainlist->last= main;
 459         main->next= NULL;
 460
 461         if(main->library.first==NULL)
 462                 return;
 463
 464         for (lib= main->library.first; lib; lib= lib->id.next) {
 465                 Main *libmain= MEM_callocN(sizeof(Main), "libmain");
 466                 libmain->curlib= lib;
 467                 BLI_addtail(mainlist, libmain);
 468         }
 469
 470         i= set_listbasepointers(main, lbarray);
 471         while(i--)
 472                 split_libdata(lbarray[i], main->next);
 473 }
 474
 475 /* removes things like /blah/blah/../../blah/ etc, then writes in *name the full path */
 476 static void cleanup_path(const char *relabase, char *name)
 477 {
 478         char filename[FILE_MAXFILE];
 479
 480         BLI_splitdirstring(name, filename);
 481         BLI_cleanup_dir(relabase, name);
 482         strcat(name, filename);
 483 }
 484
 485 static void read_file_version(FileData *fd, Main *main)
 486 {
 487         BHead *bhead;
 488
 489         for (bhead= blo_firstbhead(fd); bhead; bhead= blo_nextbhead(fd, bhead)) {
 490                 if (bhead->code==GLOB) {
 491                         FileGlobal *fg= read_struct(fd, bhead, "Global");
 492                         if(fg) {
 493                                 main->subversionfile= fg->subversion;
 494                                 main->minversionfile= fg->minversion;
 495                                 main->minsubversionfile= fg->minsubversion;
 496                                 MEM_freeN(fg);
 497                         }
 498                         else if (bhead->code==ENDB)
 499                                 break;
 500                 }
 501         }
 502 }
 503
 504
 505 static Main *blo_find_main(FileData *fd, ListBase *mainlist, const char *name, const char *relabase)
 506 {
 507         Main *m;
 508         Library *lib;
 509         char name1[FILE_MAXDIR+FILE_MAXFILE];
 510
 511         strncpy(name1, name, sizeof(name1)-1);
 512         cleanup_path(relabase, name1);
 513 //      printf("blo_find_main: original in  %s\n", name);
 514 //      printf("blo_find_main: converted to %s\n", name1);
 515
 516         for (m= mainlist->first; m; m= m->next) {
 517                 char *libname= (m->curlib)?m->curlib->filename:m->name;
 518
 519                 if (BLI_streq(name1, libname)) {
 520                         if(G.f & G_DEBUG) printf("blo_find_main: found library %s\n", libname);
 521                         return m;
 522                 }
 523         }
 524
 525         m= MEM_callocN(sizeof(Main), "find_main");
 526         BLI_addtail(mainlist, m);
 527
 528         lib= alloc_libblock(&m->library, ID_LI, "lib");
 529         strncpy(lib->name, name, sizeof(lib->name)-1);
 530         BLI_strncpy(lib->filename, name1, sizeof(lib->filename));
 531
 532         m->curlib= lib;
 533
 534         read_file_version(fd, m);
 535
 536         if(G.f & G_DEBUG) printf("blo_find_main: added new lib %s\n", name);
 537         return m;
 538 }
 539
 540
 541 /* ************ FILE PARSING ****************** */
 542
 543 static void switch_endian_bh4(BHead4 *bhead)
 544 {
 545         /* the ID_.. codes */
 546         if((bhead->code & 0xFFFF)==0) bhead->code >>=16;
 547
 548         if (bhead->code != ENDB) {
 549                 SWITCH_INT(bhead->len);
 550                 SWITCH_INT(bhead->SDNAnr);
 551                 SWITCH_INT(bhead->nr);
 552         }
 553 }
 554
 555 static void switch_endian_bh8(BHead8 *bhead)
 556 {
 557         /* the ID_.. codes */
 558         if((bhead->code & 0xFFFF)==0) bhead->code >>=16;
 559
 560         if (bhead->code != ENDB) {
 561                 SWITCH_INT(bhead->len);
 562                 SWITCH_INT(bhead->SDNAnr);
 563                 SWITCH_INT(bhead->nr);
 564         }
 565 }
 566
 567 static void bh4_from_bh8(BHead *bhead, BHead8 *bhead8, int do_endian_swap)
 568 {
 569         BHead4 *bhead4 = (BHead4 *) bhead;
 570 #if defined(WIN32) && !defined(FREE_WINDOWS)
 571         __int64 old;
 572 #else
 573         long long old;
 574 #endif
 575
 576         bhead4->code= bhead8->code;
 577         bhead4->len= bhead8->len;
 578
 579         if (bhead4->code != ENDB) {
 580
 581                 // why is this here ??
 582                 if (do_endian_swap) {
 583                         SWITCH_LONGINT(bhead8->old);
 584                 }
 585
 586                 /* this patch is to avoid a long long being read from not-eight aligned positions
 587                    is necessary on any modern 64bit architecture) */
 588                 memcpy(&old, &bhead8->old, 8);
 589                 bhead4->old = (int) (old >> 3);
 590
 591                 bhead4->SDNAnr= bhead8->SDNAnr;
 592                 bhead4->nr= bhead8->nr;
 593         }
 594 }
 595
 596 static void bh8_from_bh4(BHead *bhead, BHead4 *bhead4)
 597 {
 598         BHead8 *bhead8 = (BHead8 *) bhead;
 599
 600         bhead8->code= bhead4->code;
 601         bhead8->len= bhead4->len;
 602
 603         if (bhead8->code != ENDB) {
 604                 bhead8->old= bhead4->old;
 605                 bhead8->SDNAnr= bhead4->SDNAnr;
 606                 bhead8->nr= bhead4->nr;
 607         }
 608 }
 609
 610 static BHeadN *get_bhead(FileData *fd)
 611 {
 612         BHead8 bhead8;
 613         BHead4 bhead4;
 614         BHead  bhead;
 615         BHeadN *new_bhead = 0;
 616         int readsize;
 617
 618         if (fd) {
 619                 if ( ! fd->eof) {
 620
 621                         /* not strictly needed but shuts valgrind up
 622                          * since uninitialized memory gets compared */
 623                         memset(&bhead8, 0, sizeof(BHead8));
 624                         memset(&bhead4, 0, sizeof(BHead4));
 625                         memset(&bhead,  0, sizeof(BHead));
 626
 627                         // First read the bhead structure.
 628                         // Depending on the platform the file was written on this can
 629                         // be a big or little endian BHead4 or BHead8 structure.
 630
 631                         // As usual 'ENDB' (the last *partial* bhead of the file)
 632                         // needs some special handling. We don't want to EOF just yet.
 633
 634                         if (fd->flags & FD_FLAGS_FILE_POINTSIZE_IS_4) {
 635                                 bhead4.code = DATA;
 636                                 readsize = fd->read(fd, &bhead4, sizeof(bhead4));
 637
 638                                 if (readsize == sizeof(bhead4) || bhead4.code == ENDB) {
 639                                         if (fd->flags & FD_FLAGS_SWITCH_ENDIAN) {
 640                                                 switch_endian_bh4(&bhead4);
 641                                         }
 642
 643                                         if (fd->flags & FD_FLAGS_POINTSIZE_DIFFERS) {
 644                                                 bh8_from_bh4(&bhead, &bhead4);
 645                                         } else {
 646                                                 memcpy(&bhead, &bhead4, sizeof(bhead));
 647                                         }
 648                                 } else {
 649                                         fd->eof = 1;
 650                                         bhead.len= 0;
 651                                 }
 652                         } else {
 653                                 bhead8.code = DATA;
 654                                 readsize = fd->read(fd, &bhead8, sizeof(bhead8));
 655
 656                                 if (readsize == sizeof(bhead8) || bhead8.code == ENDB) {
 657                                         if (fd->flags & FD_FLAGS_SWITCH_ENDIAN) {
 658                                                 switch_endian_bh8(&bhead8);
 659                                         }
 660
 661                                         if (fd->flags & FD_FLAGS_POINTSIZE_DIFFERS) {
 662                                                 bh4_from_bh8(&bhead, &bhead8, (fd->flags & FD_FLAGS_SWITCH_ENDIAN));
 663                                         } else {
 664                                                 memcpy(&bhead, &bhead8, sizeof(bhead));
 665                                         }
 666                                 } else {
 667                                         fd->eof = 1;
 668                                         bhead.len= 0;
 669                                 }
 670                         }
 671
 672                         /* make sure people are not trying to pass bad blend files */
 673                         if (bhead.len < 0) fd->eof = 1;
 674
 675                         // bhead now contains the (converted) bhead structure. Now read
 676                         // the associated data and put everything in a BHeadN (creative naming !)
 677
 678                         if ( ! fd->eof) {
 679                                 new_bhead = MEM_mallocN(sizeof(BHeadN) + bhead.len, "new_bhead");
 680                                 if (new_bhead) {
 681                                         new_bhead->next = new_bhead->prev = 0;
 682                                         new_bhead->bhead = bhead;
 683
 684                                         readsize = fd->read(fd, new_bhead + 1, bhead.len);
 685
 686                                         if (readsize != bhead.len) {
 687                                                 fd->eof = 1;
 688                                                 MEM_freeN(new_bhead);
 689                                                 new_bhead = 0;
 690                                         }
 691                                 } else {
 692                                         fd->eof = 1;
 693                                 }
 694                         }
 695                 }
 696         }
 697
 698         // We've read a new block. Now add it to the list
 699         // of blocks.
 700
 701         if (new_bhead) {
 702                 BLI_addtail(&fd->listbase, new_bhead);
 703         }
 704
 705         return(new_bhead);
 706 }
 707
 708 BHead *blo_firstbhead(FileData *fd)
 709 {
 710         BHeadN *new_bhead;
 711         BHead *bhead = 0;
 712
 713         // Rewind the file
 714         // Read in a new block if necessary
 715
 716         new_bhead = fd->listbase.first;
 717         if (new_bhead == 0) {
 718                 new_bhead = get_bhead(fd);
 719         }
 720
 721         if (new_bhead) {
 722                 bhead = &new_bhead->bhead;
 723         }
 724
 725         return(bhead);
 726 }
 727
 728 BHead *blo_prevbhead(FileData *fd, BHead *thisblock)
 729 {
 730         BHeadN *bheadn= (BHeadN *) (((char *) thisblock) - GET_INT_FROM_POINTER( &((BHeadN*)0)->bhead) );
 731         BHeadN *prev= bheadn->prev;
 732
 733         return prev?&prev->bhead:NULL;
 734 }
 735
 736 BHead *blo_nextbhead(FileData *fd, BHead *thisblock)
 737 {
 738         BHeadN *new_bhead = NULL;
 739         BHead *bhead = NULL;
 740
 741         if (thisblock) {
 742                 // bhead is actually a sub part of BHeadN
 743                 // We calculate the BHeadN pointer from the BHead pointer below
 744                 new_bhead = (BHeadN *) (((char *) thisblock) - GET_INT_FROM_POINTER( &((BHeadN*)0)->bhead) );
 745
 746                 // get the next BHeadN. If it doesn't exist we read in the next one
 747                 new_bhead = new_bhead->next;
 748                 if (new_bhead == 0) {
 749                         new_bhead = get_bhead(fd);
 750                 }
 751         }
 752
 753         if (new_bhead) {
 754                 // here we do the reverse:
 755                 // go from the BHeadN pointer to the BHead pointer
 756                 bhead = &new_bhead->bhead;
 757         }
 758
 759         return(bhead);
 760 }
 761
 762 static void decode_blender_header(FileData *fd)
 763 {
 764         char header[SIZEOFBLENDERHEADER], num[4];
 765         int readsize;
 766
 767         // read in the header data
 768         readsize = fd->read(fd, header, sizeof(header));
 769
 770         if (readsize == sizeof(header)) {
 771                 if(strncmp(header, "BLENDER", 7) == 0) {
 772                         int remove_this_endian_test= 1;
 773
 774                         fd->flags |= FD_FLAGS_FILE_OK;
 775
 776                         // what size are pointers in the file ?
 777                         if(header[7]=='_') {
 778                                 fd->flags |= FD_FLAGS_FILE_POINTSIZE_IS_4;
 779                                 if (sizeof(void *) != 4) {
 780                                         fd->flags |= FD_FLAGS_POINTSIZE_DIFFERS;
 781                                 }
 782                         } else {
 783                                 if (sizeof(void *) != 8) {
 784                                         fd->flags |= FD_FLAGS_POINTSIZE_DIFFERS;
 785                                 }
 786                         }
 787
 788                         // is the file saved in a different endian
 789                         // than we need ?
 790                         if (((((char*)&remove_this_endian_test)[0]==1)?L_ENDIAN:B_ENDIAN) != ((header[8]=='v')?L_ENDIAN:B_ENDIAN)) {
 791                                 fd->flags |= FD_FLAGS_SWITCH_ENDIAN;
 792                         }
 793
 794                         // get the version number
 795
 796                         memcpy(num, header+9, 3);
 797                         num[3] = 0;
 798                         fd->fileversion = atoi(num);
 799                 }
 800         }
 801 }
 802
 803 static int read_file_dna(FileData *fd)
 804 {
 805         BHead *bhead;
 806
 807         for (bhead= blo_firstbhead(fd); bhead; bhead= blo_nextbhead(fd, bhead)) {
 808                 if (bhead->code==DNA1) {
 809                         int do_endian_swap= (fd->flags&FD_FLAGS_SWITCH_ENDIAN)?1:0;
 810
 811                         fd->filesdna= DNA_sdna_from_data(&bhead[1], bhead->len, do_endian_swap);
 812                         if (fd->filesdna) {
 813
 814                                 fd->compflags= DNA_struct_get_compareflags(fd->filesdna, fd->memsdna);
 815                                 /* used to retrieve ID names from (bhead+1) */
 816                                 fd->id_name_offs= DNA_elem_offset(fd->filesdna, "ID", "char", "name[]");
 817                         }
 818
 819                         return 1;
 820                 } else if (bhead->code==ENDB)
 821                         break;
 822         }
 823
 824         return 0;
 825 }
 826
 827 static int fd_read_from_file(FileData *filedata, void *buffer, unsigned int size)
 828 {
 829         int readsize = read(filedata->filedes, buffer, size);
 830
 831         if (readsize < 0) {
 832                 readsize = EOF;
 833         } else {
 834                 filedata->seek += readsize;
 835         }
 836
 837         return (readsize);
 838 }
 839
 840 static int fd_read_gzip_from_file(FileData *filedata, void *buffer, unsigned int size)
 841 {
 842         int readsize = gzread(filedata->gzfiledes, buffer, size);
 843
 844         if (readsize < 0) {
 845                 readsize = EOF;
 846         } else {
 847                 filedata->seek += readsize;
 848         }
 849
 850         return (readsize);
 851 }
 852
 853 static int fd_read_from_memory(FileData *filedata, void *buffer, unsigned int size)
 854 {
 855                 // don't read more bytes then there are available in the buffer
 856         int readsize = MIN2(size, filedata->buffersize - filedata->seek);
 857
 858         memcpy(buffer, filedata->buffer + filedata->seek, readsize);
 859         filedata->seek += readsize;
 860
 861         return (readsize);
 862 }
 863
 864 static int fd_read_from_memfile(FileData *filedata, void *buffer, unsigned int size)
 865 {
 866         static unsigned int seek= 1<<30;        /* the current position */
 867         static unsigned int offset= 0;          /* size of previous chunks */
 868         static MemFileChunk *chunk=NULL;
 869         unsigned int chunkoffset, readsize, totread;
 870
 871         if(size==0) return 0;
 872
 873         if(seek != (unsigned int)filedata->seek) {
 874                 chunk= filedata->memfile->chunks.first;
 875                 seek= 0;
 876
 877                 while(chunk) {
 878                         if(seek + chunk->size > (unsigned) filedata->seek) break;
 879                         seek+= chunk->size;
 880                         chunk= chunk->next;
 881                 }
 882                 offset= seek;
 883                 seek= filedata->seek;
 884         }
 885
 886         if(chunk) {
 887                 totread= 0;
 888
 889                 do {
 890                         /* first check if it's on the end if current chunk */
 891                         if(seek-offset == chunk->size) {
 892                                 offset+= chunk->size;
 893                                 chunk= chunk->next;
 894                         }
 895
 896                         /* debug, should never happen */
 897                         if(chunk==NULL) {
 898                                 printf("illegal read, chunk zero\n");
 899                                 return 0;
 900                         }
 901
 902                         chunkoffset= seek-offset;
 903                         readsize= size-totread;
 904
 905                         /* data can be spread over multiple chunks, so clamp size
 906                          * to within this chunk, and then it will read further in
 907                          * the next chunk */
 908                         if(chunkoffset+readsize > chunk->size)
 909                                 readsize= chunk->size-chunkoffset;
 910
 911                         memcpy((char*)buffer+totread, chunk->buf+chunkoffset, readsize);
 912                         totread += readsize;
 913                         filedata->seek += readsize;
 914                         seek += readsize;
 915                 } while(totread < size);
 916
 917                 return totread;
 918         }
 919
 920         return 0;
 921 }
 922
 923 static FileData *filedata_new(void)
 924 {
 925         FileData *fd = MEM_callocN(sizeof(FileData), "FileData");
 926
 927         fd->filedes = -1;
 928         fd->gzfiledes = NULL;
 929
 930                 /* XXX, this doesn't need to be done all the time,
 931                  * but it keeps us reentrant,  remove once we have
 932                  * a lib that provides a nice lock. - zr
 933                  */
 934         fd->memsdna = DNA_sdna_from_data(DNAstr,  DNAlen,  0);
 935
 936         fd->datamap = oldnewmap_new();
 937         fd->globmap = oldnewmap_new();
 938         fd->libmap = oldnewmap_new();
 939
 940         return fd;
 941 }
 942
 943 static FileData *blo_decode_and_check(FileData *fd, ReportList *reports)
 944 {
 945         decode_blender_header(fd);
 946
 947         if (fd->flags & FD_FLAGS_FILE_OK) {
 948                 if (!read_file_dna(fd)) {
 949                         BKE_report(reports, RPT_ERROR, "File incomplete");
 950                         blo_freefiledata(fd);
 951                         fd= NULL;
 952                 }
 953         }
 954         else {
 955                 BKE_report(reports, RPT_ERROR, "File is not a Blender file");
 956                 blo_freefiledata(fd);
 957                 fd= NULL;
 958         }
 959
 960         return fd;
 961 }
 962
 963 /* cannot be called with relative paths anymore! */
 964 /* on each new library added, it now checks for the current FileData and expands relativeness */
 965 FileData *blo_openblenderfile(char *name, ReportList *reports)
 966 {
 967         gzFile gzfile;
 968
 969         gzfile= gzopen(name, "rb");
 970
 971         if (NULL == gzfile) {
 972                 BKE_report(reports, RPT_ERROR, "Unable to open");
 973                 return NULL;
 974         } else {
 975                 FileData *fd = filedata_new();
 976                 fd->gzfiledes = gzfile;
 977                 fd->read = fd_read_gzip_from_file;
 978
 979                 /* needed for library_append and read_libraries */
 980                 BLI_strncpy(fd->filename, name, sizeof(fd->filename));
 981
 982                 return blo_decode_and_check(fd, reports);
 983         }
 984 }
 985
 986 FileData *blo_openblendermemory(void *mem, int memsize, ReportList *reports)
 987 {
 988         if (!mem || memsize<SIZEOFBLENDERHEADER) {
 989                 BKE_report(reports, RPT_ERROR, (mem)? "Unable to read": "Unable to open");
 990                 return NULL;
 991         } else {
 992                 FileData *fd= filedata_new();
 993                 fd->buffer= mem;
 994                 fd->buffersize= memsize;
 995                 fd->read= fd_read_from_memory;
 996                 fd->flags|= FD_FLAGS_NOT_MY_BUFFER;
 997
 998                 return blo_decode_and_check(fd, reports);
 999         }
1000 }
1001
1002 FileData *blo_openblendermemfile(MemFile *memfile, ReportList *reports)
1003 {
1004         if (!memfile) {
1005                 BKE_report(reports, RPT_ERROR, "Unable to open");
1006                 return NULL;
1007         } else {
1008                 FileData *fd= filedata_new();
1009                 fd->memfile= memfile;
1010
1011                 fd->read= fd_read_from_memfile;
1012                 fd->flags|= FD_FLAGS_NOT_MY_BUFFER;
1013
1014                 return blo_decode_and_check(fd, reports);
1015         }
1016 }
1017
1018
1019 void blo_freefiledata(FileData *fd)
1020 {
1021         if (fd) {
1022
1023                 if (fd->filedes != -1) {
1024                         close(fd->filedes);
1025                 }
1026
1027                 if (fd->gzfiledes != NULL)
1028                 {
1029                         gzclose(fd->gzfiledes);
1030                 }
1031
1032                 if (fd->buffer && !(fd->flags & FD_FLAGS_NOT_MY_BUFFER)) {
1033                         MEM_freeN(fd->buffer);
1034                         fd->buffer = 0;
1035                 }
1036
1037                 // Free all BHeadN data blocks
1038                 BLI_freelistN(&fd->listbase);
1039
1040                 if (fd->memsdna)
1041                         DNA_sdna_free(fd->memsdna);
1042                 if (fd->filesdna)
1043                         DNA_sdna_free(fd->filesdna);
1044                 if (fd->compflags)
1045                         MEM_freeN(fd->compflags);
1046
1047                 if (fd->datamap)
1048                         oldnewmap_free(fd->datamap);
1049                 if (fd->globmap)
1050                         oldnewmap_free(fd->globmap);
1051                 if (fd->imamap)
1052                         oldnewmap_free(fd->imamap);
1053                 if (fd->libmap && !(fd->flags & FD_FLAGS_NOT_MY_LIBMAP))
1054                         oldnewmap_free(fd->libmap);
1055                 if (fd->bheadmap)
1056                         MEM_freeN(fd->bheadmap);
1057
1058                 MEM_freeN(fd);
1059         }
1060 }
1061
1062 /* ************ DIV ****************** */
1063
1064 int BLO_has_bfile_extension(char *str)
1065 {
1066         return (BLI_testextensie(str, ".ble") || BLI_testextensie(str, ".blend")||BLI_testextensie(str, ".blend.gz"));
1067 }
1068
1069 int BLO_is_a_library(char *path, char *dir, char *group)
1070 {
1071         /* return ok when a blenderfile, in dir is the filename,
1072          * in group the type of libdata
1073          */
1074         int len;
1075         char *fd;
1076
1077         strcpy(dir, path);
1078         len= strlen(dir);
1079         if(len<7) return 0;
1080         if( dir[len-1] != '/' && dir[len-1] != '\\') return 0;
1081
1082         group[0]= 0;
1083         dir[len-1]= 0;
1084
1085         /* Find the last slash */
1086         fd= (strrchr(dir, '/')>strrchr(dir, '\\'))?strrchr(dir, '/'):strrchr(dir, '\\');
1087
1088         if(fd==0) return 0;
1089         *fd= 0;
1090         if(BLO_has_bfile_extension(fd+1)) {
1091                 /* the last part of the dir is a .blend file, no group follows */
1092                 *fd= '/'; /* put back the removed slash separating the dir and the .blend file name */
1093         }
1094         else {
1095                 char *gp = fd+1; // in case we have a .blend file, gp points to the group
1096
1097                 /* Find the last slash */
1098                 fd= (strrchr(dir, '/')>strrchr(dir, '\\'))?strrchr(dir, '/'):strrchr(dir, '\\');
1099                 if (!fd || !BLO_has_bfile_extension(fd+1)) return 0;
1100
1101                 /* now we know that we are in a blend file and it is safe to
1102                    assume that gp actually points to a group */
1103                 if (BLI_streq("Screen", gp)==0)
1104                         BLI_strncpy(group, gp, GROUP_MAX);
1105         }
1106         return 1;
1107 }
1108
1109 /* ************** OLD POINTERS ******************* */
1110
1111 static void *newdataadr(FileData *fd, void *adr)                /* only direct databocks */
1112 {
1113         return oldnewmap_lookup_and_inc(fd->datamap, adr);
1114 }
1115
1116 static void *newglobadr(FileData *fd, void *adr)                /* direct datablocks with global linking */
1117 {
1118         return oldnewmap_lookup_and_inc(fd->globmap, adr);
1119 }
1120
1121 static void *newimaadr(FileData *fd, void *adr)         /* used to restore image data after undo */
1122 {
1123         if(fd->imamap && adr)
1124                 return oldnewmap_lookup_and_inc(fd->imamap, adr);
1125         return NULL;
1126 }
1127
1128
1129 static void *newlibadr(FileData *fd, void *lib, void *adr)              /* only lib data */
1130 {
1131         return oldnewmap_liblookup(fd->libmap, adr, lib);
1132 }
1133
1134 static void *newlibadr_us(FileData *fd, void *lib, void *adr)   /* increases user number */
1135 {
1136         ID *id= newlibadr(fd, lib, adr);
1137
1138         if(id)
1139                 id->us++;
1140
1141         return id;
1142 }
1143
1144 static void change_idid_adr_fd(FileData *fd, void *old, void *new)
1145 {
1146         int i;
1147
1148         for (i=0; i<fd->libmap->nentries; i++) {
1149                 OldNew *entry= &fd->libmap->entries[i];
1150
1151                 if (old==entry->newp && entry->nr==ID_ID) {
1152                         entry->newp= new;
1153                         if(new) entry->nr= GS( ((ID *)new)->name );
1154                         break;
1155                 }
1156         }
1157 }
1158
1159 static void change_idid_adr(ListBase *mainlist, FileData *basefd, void *old, void *new)
1160 {
1161         Main *mainptr;
1162
1163         for(mainptr= mainlist->first; mainptr; mainptr= mainptr->next) {
1164                 FileData *fd;
1165
1166                 if(mainptr->curlib) fd= mainptr->curlib->filedata;
1167                 else fd= basefd;
1168
1169                 if(fd) {
1170                         change_idid_adr_fd(fd, old, new);
1171                 }
1172         }
1173 }
1174
1175 /* lib linked proxy objects point to our local data, we need
1176  * to clear that pointer before reading the undo memfile since
1177  * the object might be removed, it is set again in reading
1178  * if the local object still exists */
1179 void blo_clear_proxy_pointers_from_lib(FileData *fd, Main *oldmain)
1180 {
1181         Object *ob= oldmain->object.first;
1182
1183         for(;ob; ob= ob->id.next)
1184                 if(ob->id.lib)
1185                         ob->proxy_from= NULL;
1186 }
1187
1188 void blo_make_image_pointer_map(FileData *fd, Main *oldmain)
1189 {
1190         Image *ima= oldmain->image.first;
1191         Scene *sce= oldmain->scene.first;
1192
1193         fd->imamap= oldnewmap_new();
1194
1195         for(;ima; ima= ima->id.next) {
1196                 Link *ibuf= ima->ibufs.first;
1197                 for(; ibuf; ibuf= ibuf->next)
1198                         oldnewmap_insert(fd->imamap, ibuf, ibuf, 0);
1199                 if(ima->gputexture)
1200                         oldnewmap_insert(fd->imamap, ima->gputexture, ima->gputexture, 0);
1201         }
1202         for(; sce; sce= sce->id.next) {
1203                 if(sce->nodetree) {
1204                         bNode *node;
1205                         for(node= sce->nodetree->nodes.first; node; node= node->next)
1206                                 oldnewmap_insert(fd->imamap, node->preview, node->preview, 0);
1207                 }
1208         }
1209 }
1210
1211 /* set old main image ibufs to zero if it has been restored */
1212 /* this works because freeing old main only happens after this call */
1213 void blo_end_image_pointer_map(FileData *fd, Main *oldmain)
1214 {
1215         OldNew *entry= fd->imamap->entries;
1216         Image *ima= oldmain->image.first;
1217         Scene *sce= oldmain->scene.first;
1218         int i;
1219
1220         /* used entries were restored, so we put them to zero */
1221         for (i=0; i<fd->imamap->nentries; i++, entry++) {
1222                 if (entry->nr>0)
1223                         entry->newp= NULL;
1224         }
1225
1226         for(;ima; ima= ima->id.next) {
1227                 Link *ibuf, *next;
1228
1229                 /* this mirrors direct_link_image */
1230                 for(ibuf= ima->ibufs.first; ibuf; ibuf= next) {
1231                         next= ibuf->next;
1232                         if(NULL==newimaadr(fd, ibuf)) { /* so was restored */
1233                                 BLI_remlink(&ima->ibufs, ibuf);
1234                                 ima->bindcode= 0;
1235                                 ima->gputexture= NULL;
1236                         }
1237                 }
1238
1239                 ima->gputexture= newimaadr(fd, ima->gputexture);
1240         }
1241         for(; sce; sce= sce->id.next) {
1242                 if(sce->nodetree) {
1243                         bNode *node;
1244                         for(node= sce->nodetree->nodes.first; node; node= node->next)
1245                                 node->preview= newimaadr(fd, node->preview);
1246                 }
1247         }
1248 }
1249
1250 /* undo file support: add all library pointers in lookup */
1251 void blo_add_library_pointer_map(ListBase *mainlist, FileData *fd)
1252 {
1253         Main *ptr= mainlist->first;
1254         ListBase *lbarray[MAX_LIBARRAY];
1255
1256         for(ptr= ptr->next; ptr; ptr= ptr->next) {
1257                 int i= set_listbasepointers(ptr, lbarray);
1258                 while(i--) {
1259                         ID *id;
1260                         for(id= lbarray[i]->first; id; id= id->next)
1261                                 oldnewmap_insert(fd->libmap, id, id, GS(id->name));
1262                 }
1263         }
1264 }
1265
1266
1267 /* ********** END OLD POINTERS ****************** */
1268 /* ********** READ FILE ****************** */
1269
1270 static void switch_endian_structs(struct SDNA *filesdna, BHead *bhead)
1271 {
1272         int blocksize, nblocks;
1273         char *data;
1274
1275         data= (char *)(bhead+1);
1276         blocksize= filesdna->typelens[ filesdna->structs[bhead->SDNAnr][0] ];
1277
1278         nblocks= bhead->nr;
1279         while(nblocks--) {
1280                 DNA_struct_switch_endian(filesdna, bhead->SDNAnr, data);
1281
1282                 data+= blocksize;
1283         }
1284 }
1285
1286 static void *read_struct(FileData *fd, BHead *bh, char *blockname)
1287 {
1288         void *temp= NULL;
1289
1290         if (bh->len) {
1291                 /* switch is based on file dna */
1292                 if (bh->SDNAnr && (fd->flags & FD_FLAGS_SWITCH_ENDIAN))
1293                         switch_endian_structs(fd->filesdna, bh);
1294
1295                 if (fd->compflags[bh->SDNAnr]) {        /* flag==0: doesn't exist anymore */
1296                         if(fd->compflags[bh->SDNAnr]==2) {
1297                                 temp= DNA_struct_reconstruct(fd->memsdna, fd->filesdna, fd->compflags, bh->SDNAnr, bh->nr, (bh+1));
1298                         } else {
1299                                 temp= MEM_mallocN(bh->len, blockname);
1300                                 memcpy(temp, (bh+1), bh->len);
1301                         }
1302                 }
1303         }
1304
1305         return temp;
1306 }
1307
1308 static void link_list(FileData *fd, ListBase *lb)               /* only direct data */
1309 {
1310         Link *ln, *prev;
1311
1312         if(lb->first==NULL) return;
1313
1314         lb->first= newdataadr(fd, lb->first);
1315         ln= lb->first;
1316         prev= NULL;
1317         while(ln) {
1318                 ln->next= newdataadr(fd, ln->next);
1319                 ln->prev= prev;
1320                 prev= ln;
1321                 ln= ln->next;
1322         }
1323         lb->last= prev;
1324 }
1325
1326 static void link_glob_list(FileData *fd, ListBase *lb)          /* for glob data */
1327 {
1328         Link *ln, *prev;
1329         void *poin;
1330
1331         if(lb->first==0) return;
1332         poin= newdataadr(fd, lb->first);
1333         if(lb->first) {
1334                 oldnewmap_insert(fd->globmap, lb->first, poin, 0);
1335         }
1336         lb->first= poin;
1337
1338         ln= lb->first;
1339         prev= 0;
1340         while(ln) {
1341                 poin= newdataadr(fd, ln->next);
1342                 if(ln->next) {
1343                         oldnewmap_insert(fd->globmap, ln->next, poin, 0);
1344                 }
1345                 ln->next= poin;
1346                 ln->prev= prev;
1347                 prev= ln;
1348                 ln= ln->next;
1349         }
1350         lb->last= prev;
1351 }
1352
1353 static void test_pointer_array(FileData *fd, void **mat)
1354 {
1355 #if defined(WIN32) && !defined(FREE_WINDOWS)
1356         __int64 *lpoin, *lmat;
1357 #else
1358         long long *lpoin, *lmat;
1359 #endif
1360         int len, *ipoin, *imat;
1361
1362                 /* manually convert the pointer array in
1363                  * the old dna format to a pointer array in
1364                  * the new dna format.
1365                  */
1366         if(*mat) {
1367                 len= MEM_allocN_len(*mat)/fd->filesdna->pointerlen;
1368
1369                 if(fd->filesdna->pointerlen==8 && fd->memsdna->pointerlen==4) {
1370                         ipoin=imat= MEM_mallocN( len*4, "newmatar");
1371                         lpoin= *mat;
1372
1373                         while(len-- > 0) {
1374                                 if((fd->flags & FD_FLAGS_SWITCH_ENDIAN))
1375                                         SWITCH_LONGINT(*lpoin);
1376                                 *ipoin= (int) ((*lpoin) >> 3);
1377                                 ipoin++;
1378                                 lpoin++;
1379                         }
1380                         MEM_freeN(*mat);
1381                         *mat= imat;
1382                 }
1383
1384                 if(fd->filesdna->pointerlen==4 && fd->memsdna->pointerlen==8) {
1385                         lpoin=lmat= MEM_mallocN( len*8, "newmatar");
1386                         ipoin= *mat;
1387
1388                         while(len-- > 0) {
1389                                 *lpoin= *ipoin;
1390                                 ipoin++;
1391                                 lpoin++;
1392                         }
1393                         MEM_freeN(*mat);
1394                         *mat= lmat;
1395                 }
1396         }
1397 }
1398
1399 /* ************ READ ID Properties *************** */
1400
1401 void IDP_DirectLinkProperty(IDProperty *prop, int switch_endian, FileData *fd);
1402 void IDP_LibLinkProperty(IDProperty *prop, int switch_endian, FileData *fd);
1403
1404 static void IDP_DirectLinkIDPArray(IDProperty *prop, int switch_endian, FileData *fd)
1405 {
1406         IDProperty *array;
1407         int i;
1408
1409         /*since we didn't save the extra buffer, set totallen to len.*/
1410         prop->totallen = prop->len;
1411         prop->data.pointer = newdataadr(fd, prop->data.pointer);
1412
1413         array= (IDProperty*) prop->data.pointer;
1414
1415         for(i=0; i<prop->len; i++)
1416                 IDP_DirectLinkProperty(&array[i], switch_endian, fd);
1417 }
1418
1419 static void IDP_DirectLinkArray(IDProperty *prop, int switch_endian, FileData *fd)
1420 {
1421         IDProperty **array;
1422         int i;
1423
1424         /*since we didn't save the extra buffer, set totallen to len.*/
1425         prop->totallen = prop->len;
1426         prop->data.pointer = newdataadr(fd, prop->data.pointer);
1427
1428         if(prop->subtype == IDP_GROUP) {
1429                 test_pointer_array(fd, prop->data.pointer);
1430                 array= prop->data.pointer;
1431
1432                 for(i=0; i<prop->len; i++)
1433                         IDP_DirectLinkProperty(array[i], switch_endian, fd);
1434         }
1435         else if(prop->subtype == IDP_DOUBLE) {
1436                 if (switch_endian) {
1437                         for (i=0; i<prop->len; i++) {
1438                                 SWITCH_LONGINT(((double*)prop->data.pointer)[i]);
1439                         }
1440                 }
1441         }
1442         else {
1443                 if (switch_endian) {
1444                         for (i=0; i<prop->len; i++) {
1445                                 SWITCH_INT(((int*)prop->data.pointer)[i]);
1446                         }
1447                 }
1448         }
1449 }
1450
1451 static void IDP_DirectLinkString(IDProperty *prop, int switch_endian, FileData *fd)
1452 {
1453         /*since we didn't save the extra string buffer, set totallen to len.*/
1454         prop->totallen = prop->len;
1455         prop->data.pointer = newdataadr(fd, prop->data.pointer);
1456 }
1457
1458 static void IDP_DirectLinkGroup(IDProperty *prop, int switch_endian, FileData *fd)
1459 {
1460         ListBase *lb = &prop->data.group;
1461         IDProperty *loop;
1462
1463         link_list(fd, lb);
1464
1465         /*Link child id properties now*/
1466         for (loop=prop->data.group.first; loop; loop=loop->next) {
1467                 IDP_DirectLinkProperty(loop, switch_endian, fd);
1468         }
1469 }
1470
1471 void IDP_DirectLinkProperty(IDProperty *prop, int switch_endian, FileData *fd)
1472 {
1473         switch (prop->type) {
1474                 case IDP_GROUP:
1475                         IDP_DirectLinkGroup(prop, switch_endian, fd);
1476                         break;
1477                 case IDP_STRING:
1478                         IDP_DirectLinkString(prop, switch_endian, fd);
1479                         break;
1480                 case IDP_ARRAY:
1481                         IDP_DirectLinkArray(prop, switch_endian, fd);
1482                         break;
1483                 case IDP_IDPARRAY:
1484                         IDP_DirectLinkIDPArray(prop, switch_endian, fd);
1485                         break;
1486                 case IDP_DOUBLE:
1487                         /*erg, stupid doubles.  since I'm storing them
1488                          in the same field as int val; val2 in the
1489                          IDPropertyData struct, they have to deal with
1490                          endianness specifically
1491
1492                          in theory, val and val2 would've already been swapped
1493                          if switch_endian is true, so we have to first unswap
1494                          them then reswap them as a single 64-bit entity.
1495                          */
1496
1497                         if (switch_endian) {
1498                                 SWITCH_INT(prop->data.val);
1499                                 SWITCH_INT(prop->data.val2);
1500                                 SWITCH_LONGINT(prop->data.val);
1501                         }
1502
1503                         break;
1504         }
1505 }
1506
1507 /*stub function*/
1508 void IDP_LibLinkProperty(IDProperty *prop, int switch_endian, FileData *fd)
1509 {
1510 }
1511
1512 /* ************ READ CurveMapping *************** */
1513
1514 /* cuma itself has been read! */
1515 static void direct_link_curvemapping(FileData *fd, CurveMapping *cumap)
1516 {
1517         int a;
1518
1519         /* flag seems to be able to hang? Maybe old files... not bad to clear anyway */
1520         cumap->flag &= ~CUMA_PREMULLED;
1521
1522         for(a=0; a<CM_TOT; a++) {
1523                 cumap->cm[a].curve= newdataadr(fd, cumap->cm[a].curve);
1524                 cumap->cm[a].table= NULL;
1525         }
1526 }
1527
1528 /* ************ READ Brush *************** */
1529 /* library brush linking after fileread */
1530 static void lib_link_brush(FileData *fd, Main *main)
1531 {
1532         Brush *brush;
1533         MTex *mtex;
1534         int a;
1535
1536         /* only link ID pointers */
1537         for(brush= main->brush.first; brush; brush= brush->id.next) {
1538                 if(brush->id.flag & LIB_NEEDLINK) {
1539                         brush->id.flag -= LIB_NEEDLINK;
1540
1541                         brush->clone.image= newlibadr_us(fd, brush->id.lib, brush->clone.image);
1542
1543                         for(a=0; a<MAX_MTEX; a++) {
1544                                 mtex= brush->mtex[a];
1545                                 if(mtex)
1546                                         mtex->tex= newlibadr_us(fd, brush->id.lib, mtex->tex);
1547                         }
1548
1549                         brush->clone.image= newlibadr_us(fd, brush->id.lib, brush->clone.image);
1550                 }
1551         }
1552 }
1553
1554 static void direct_link_brush(FileData *fd, Brush *brush)
1555 {
1556         /* brush itself has been read */
1557         int a;
1558
1559         for(a=0; a<MAX_MTEX; a++)
1560                 brush->mtex[a]= newdataadr(fd, brush->mtex[a]);
1561
1562         /* fallof curve */
1563         brush->curve= newdataadr(fd, brush->curve);
1564         if(brush->curve)
1565                 direct_link_curvemapping(fd, brush->curve);
1566         else
1567                 brush_curve_preset(brush, BRUSH_PRESET_SHARP);
1568 }
1569
1570 static void direct_link_script(FileData *fd, Script *script)
1571 {
1572         script->id.us = 1;
1573         SCRIPT_SET_NULL(script)
1574 }
1575
1576
1577 /* ************ READ PACKEDFILE *************** */
1578
1579 static PackedFile *direct_link_packedfile(FileData *fd, PackedFile *oldpf)
1580 {
1581         PackedFile *pf= newdataadr(fd, oldpf);
1582
1583         if (pf) {
1584                 pf->data= newdataadr(fd, pf->data);
1585         }
1586
1587         return pf;
1588 }
1589
1590 /* ************ READ IMAGE PREVIEW *************** */
1591
1592 static PreviewImage *direct_link_preview_image(FileData *fd, PreviewImage *old_prv)
1593 {
1594         PreviewImage *prv= newdataadr(fd, old_prv);
1595
1596         if (prv) {
1597                 int i;
1598                 for (i=0; i < PREVIEW_MIPMAPS; ++i) {
1599                         if (prv->rect[i]) {
1600                                 prv->rect[i] = newdataadr(fd, prv->rect[i]);
1601                         }
1602                 }
1603         }
1604
1605         return prv;
1606 }
1607
1608 /* ************ READ ANIMATION STUFF ***************** */
1609
1610 /* Legacy Data Support (for Version Patching) ----------------------------- */
1611
1612 // XXX depreceated - old animation system
1613 static void lib_link_ipo(FileData *fd, Main *main)
1614 {
1615         Ipo *ipo;
1616
1617         ipo= main->ipo.first;
1618         while(ipo) {
1619                 if(ipo->id.flag & LIB_NEEDLINK) {
1620                         IpoCurve *icu;
1621                         for(icu= ipo->curve.first; icu; icu= icu->next) {
1622                                 if(icu->driver)
1623                                         icu->driver->ob= newlibadr(fd, ipo->id.lib, icu->driver->ob);
1624                         }
1625                         ipo->id.flag -= LIB_NEEDLINK;
1626                 }
1627                 ipo= ipo->id.next;
1628         }
1629 }
1630
1631 // XXX depreceated - old animation system
1632 static void direct_link_ipo(FileData *fd, Ipo *ipo)
1633 {
1634         IpoCurve *icu;
1635
1636         link_list(fd, &(ipo->curve));
1637         icu= ipo->curve.first;
1638         while(icu) {
1639                 icu->bezt= newdataadr(fd, icu->bezt);
1640                 icu->bp= newdataadr(fd, icu->bp);
1641                 icu->driver= newdataadr(fd, icu->driver);
1642                 icu= icu->next;
1643         }
1644 }
1645
1646 // XXX depreceated - old animation system
1647 static void lib_link_nlastrips(FileData *fd, ID *id, ListBase *striplist)
1648 {
1649         bActionStrip *strip;
1650         bActionModifier *amod;
1651
1652         for (strip=striplist->first; strip; strip=strip->next){
1653                 strip->object = newlibadr(fd, id->lib, strip->object);
1654                 strip->act = newlibadr_us(fd, id->lib, strip->act);
1655                 strip->ipo = newlibadr(fd, id->lib, strip->ipo);
1656                 for(amod= strip->modifiers.first; amod; amod= amod->next)
1657                         amod->ob= newlibadr(fd, id->lib, amod->ob);
1658         }
1659 }
1660
1661 // XXX depreceated - old animation system
1662 static void direct_link_nlastrips(FileData *fd, ListBase *strips)
1663 {
1664         bActionStrip *strip;
1665
1666         link_list(fd, strips);
1667
1668         for(strip= strips->first; strip; strip= strip->next)
1669                 link_list(fd, &strip->modifiers);
1670 }
1671
1672 // XXX depreceated - old animation system
1673 static void lib_link_constraint_channels(FileData *fd, ID *id, ListBase *chanbase)
1674 {
1675         bConstraintChannel *chan;
1676
1677         for (chan=chanbase->first; chan; chan=chan->next){
1678                 chan->ipo = newlibadr_us(fd, id->lib, chan->ipo);
1679         }
1680 }
1681
1682 /* Data Linking ----------------------------- */
1683
1684 static void lib_link_fmodifiers(FileData *fd, ID *id, ListBase *list)
1685 {
1686         FModifier *fcm;
1687
1688         for (fcm= list->first; fcm; fcm= fcm->next) {
1689                 /* data for specific modifiers */
1690                 switch (fcm->type) {
1691                         case FMODIFIER_TYPE_PYTHON:
1692                         {
1693                                 FMod_Python *data= (FMod_Python *)fcm->data;
1694                                 data->script = newlibadr(fd, id->lib, data->script);
1695                         }
1696                                 break;
1697                 }
1698         }
1699 }
1700
1701 static void lib_link_fcurves(FileData *fd, ID *id, ListBase *list)
1702 {
1703         FCurve *fcu;
1704
1705         /* relink ID-block references... */
1706         for (fcu= list->first; fcu; fcu= fcu->next) {
1707                 /* driver data */
1708                 if (fcu->driver) {
1709                         ChannelDriver *driver= fcu->driver;
1710                         DriverTarget *dtar;
1711
1712                         for (dtar= driver->targets.first; dtar; dtar= dtar->next)
1713                                 dtar->id= newlibadr(fd, id->lib, dtar->id);
1714                 }
1715
1716                 /* modifiers */
1717                 lib_link_fmodifiers(fd, id, &fcu->modifiers);
1718         }
1719 }
1720
1721
1722 /* NOTE: this assumes that link_list has already been called on the list */
1723 static void direct_link_fmodifiers(FileData *fd, ListBase *list)
1724 {
1725         FModifier *fcm;
1726
1727         for (fcm= list->first; fcm; fcm= fcm->next) {
1728                 /* relink general data */
1729                 fcm->data = newdataadr(fd, fcm->data);
1730                 fcm->edata= NULL;
1731
1732                 /* do relinking of data for specific types */
1733                 switch (fcm->type) {
1734                         case FMODIFIER_TYPE_GENERATOR:
1735                         {
1736                                 FMod_Generator *data= (FMod_Generator *)fcm->data;
1737
1738                                 data->coefficients= newdataadr(fd, data->coefficients);
1739                         }
1740                                 break;
1741                         case FMODIFIER_TYPE_ENVELOPE:
1742                         {
1743                                 FMod_Envelope *data= (FMod_Envelope *)fcm->data;
1744
1745                                 data->data= newdataadr(fd, data->data);
1746                         }
1747                                 break;
1748                         case FMODIFIER_TYPE_PYTHON:
1749                         {
1750                                 FMod_Python *data= (FMod_Python *)fcm->data;
1751
1752                                 data->prop = newdataadr(fd, data->prop);
1753                                 IDP_DirectLinkProperty(data->prop, (fd->flags & FD_FLAGS_SWITCH_ENDIAN), fd);
1754                         }
1755                                 break;
1756                 }
1757         }
1758 }
1759
1760 /* NOTE: this assumes that link_list has already been called on the list */
1761 static void direct_link_fcurves(FileData *fd, ListBase *list)
1762 {
1763         FCurve *fcu;
1764
1765         /* link F-Curve data to F-Curve again (non ID-libs) */
1766         for (fcu= list->first; fcu; fcu= fcu->next) {
1767                 /* curve data */
1768                 fcu->bezt= newdataadr(fd, fcu->bezt);
1769                 fcu->fpt= newdataadr(fd, fcu->fpt);
1770
1771                 /* rna path */
1772                 fcu->rna_path= newdataadr(fd, fcu->rna_path);
1773
1774                 /* group */
1775                 fcu->grp= newdataadr(fd, fcu->grp);
1776
1777                 /* driver */
1778                 fcu->driver= newdataadr(fd, fcu->driver);
1779                 if (fcu->driver) {
1780                         ChannelDriver *driver= fcu->driver;
1781                         DriverTarget *dtar;
1782
1783                         /* relink targets and their paths */
1784                         link_list(fd, &driver->targets);
1785                         for (dtar= driver->targets.first; dtar; dtar= dtar->next)
1786                                 dtar->rna_path= newdataadr(fd, dtar->rna_path);
1787                 }
1788
1789                 /* modifiers */
1790                 link_list(fd, &fcu->modifiers);
1791                 direct_link_fmodifiers(fd, &fcu->modifiers);
1792         }
1793 }
1794
1795
1796 static void lib_link_action(FileData *fd, Main *main)
1797 {
1798         bAction *act;
1799         bActionChannel *chan;
1800
1801         for (act= main->action.first; act; act= act->id.next) {
1802                 if (act->id.flag & LIB_NEEDLINK) {
1803                         act->id.flag -= LIB_NEEDLINK;
1804
1805 // XXX depreceated - old animation system <<<
1806                         for (chan=act->chanbase.first; chan; chan=chan->next) {
1807                                 chan->ipo= newlibadr_us(fd, act->id.lib, chan->ipo);
1808                                 lib_link_constraint_channels(fd, &act->id, &chan->constraintChannels);
1809                         }
1810 // >>> XXX depreceated - old animation system
1811
1812                         lib_link_fcurves(fd, &act->id, &act->curves);
1813                 }
1814         }
1815 }
1816
1817 static void direct_link_action(FileData *fd, bAction *act)
1818 {
1819         bActionChannel *achan; // XXX depreceated - old animation system
1820         bActionGroup *agrp;
1821
1822         link_list(fd, &act->curves);
1823         link_list(fd, &act->chanbase); // XXX depreceated - old animation system
1824         link_list(fd, &act->groups);
1825         link_list(fd, &act->markers);
1826
1827 // XXX depreceated - old animation system <<<
1828         for (achan = act->chanbase.first; achan; achan=achan->next) {
1829                 achan->grp= newdataadr(fd, achan->grp);
1830
1831                 link_list(fd, &achan->constraintChannels);
1832         }
1833 // >>> XXX depreceated - old animation system
1834
1835         direct_link_fcurves(fd, &act->curves);
1836
1837         for (agrp = act->groups.first; agrp; agrp= agrp->next) {
1838                 agrp->channels.first= newdataadr(fd, agrp->channels.first);
1839                 agrp->channels.last= newdataadr(fd, agrp->channels.last);
1840         }
1841 }
1842
1843 static void lib_link_nladata_strips(FileData *fd, ID *id, ListBase *list)
1844 {
1845         NlaStrip *strip;
1846
1847         for (strip= list->first; strip; strip= strip->next) {
1848                 /* check strip's children */
1849                 lib_link_nladata_strips(fd, id, &strip->strips);
1850
1851                 /* reassign the counted-reference to action */
1852                 strip->act = newlibadr_us(fd, id->lib, strip->act);
1853         }
1854 }
1855
1856 static void lib_link_nladata(FileData *fd, ID *id, ListBase *list)
1857 {
1858         NlaTrack *nlt;
1859
1860         /* we only care about the NLA strips inside the tracks */
1861         for (nlt= list->first; nlt; nlt= nlt->next) {
1862                 lib_link_nladata_strips(fd, id, &nlt->strips);
1863         }
1864 }
1865
1866 /* This handles Animato NLA-Strips linking
1867  * NOTE: this assumes that link_list has already been called on the list
1868  */
1869 static void direct_link_nladata_strips(FileData *fd, ListBase *list)
1870 {
1871         NlaStrip *strip;
1872
1873         for (strip= list->first; strip; strip= strip->next) {
1874                 /* strip's child strips */
1875                 link_list(fd, &strip->strips);
1876                 direct_link_nladata_strips(fd, &strip->strips);
1877
1878                 /* strip's F-Curves */
1879                 link_list(fd, &strip->fcurves);
1880                 direct_link_fcurves(fd, &strip->fcurves);
1881
1882                 /* strip's F-Modifiers */
1883                 link_list(fd, &strip->modifiers);
1884                 direct_link_fcurves(fd, &strip->modifiers);
1885         }
1886 }
1887
1888 /* NOTE: this assumes that link_list has already been called on the list */
1889 static void direct_link_nladata(FileData *fd, ListBase *list)
1890 {
1891         NlaTrack *nlt;
1892
1893         for (nlt= list->first; nlt; nlt= nlt->next) {
1894                 /* relink list of strips */
1895                 link_list(fd, &nlt->strips);
1896
1897                 /* relink strip data */
1898                 direct_link_nladata_strips(fd, &nlt->strips);
1899         }
1900 }
1901
1902 /* ------- */
1903
1904 static void lib_link_keyingsets(FileData *fd, ID *id, ListBase *list)
1905 {
1906         KeyingSet *ks;
1907         KS_Path *ksp;
1908
1909         /* here, we're only interested in the ID pointer stored in some of the paths */
1910         for (ks= list->first; ks; ks= ks->next) {
1911                 for (ksp= ks->paths.first; ksp; ksp= ksp->next) {
1912                         ksp->id= newlibadr(fd, id->lib, ksp->id);
1913                 }
1914         }
1915 }
1916
1917 /* NOTE: this assumes that link_list has already been called on the list */
1918 static void direct_link_keyingsets(FileData *fd, ListBase *list)
1919 {
1920         KeyingSet *ks;
1921         KS_Path *ksp;
1922
1923         /* link KeyingSet data to KeyingSet again (non ID-libs) */
1924         for (ks= list->first; ks; ks= ks->next) {
1925                 /* paths */
1926                 link_list(fd, &ks->paths);
1927
1928                 for (ksp= ks->paths.first; ksp; ksp= ksp->next) {
1929                         /* rna path */
1930                         ksp->rna_path= newdataadr(fd, ksp->rna_path);
1931                 }
1932         }
1933 }
1934
1935 /* ------- */
1936
1937 static void lib_link_animdata(FileData *fd, ID *id, AnimData *adt)
1938 {
1939         if (adt == NULL)
1940                 return;
1941
1942         /* link action data */
1943         adt->action= newlibadr_us(fd, id->lib, adt->action);
1944         adt->tmpact= newlibadr_us(fd, id->lib, adt->tmpact);
1945
1946         /* link drivers */
1947         lib_link_fcurves(fd, id, &adt->drivers);
1948
1949         /* overrides don't have lib-link for now, so no need to do anything */
1950
1951         /* link NLA-data */
1952         lib_link_nladata(fd, id, &adt->nla_tracks);
1953 }
1954
1955 static void direct_link_animdata(FileData *fd, AnimData *adt)
1956 {
1957         /* NOTE: must have called newdataadr already before doing this... */
1958         if (adt == NULL)
1959                 return;
1960
1961         /* link drivers */
1962         link_list(fd, &adt->drivers);
1963         direct_link_fcurves(fd, &adt->drivers);
1964
1965         /* link overrides */
1966         // TODO...
1967
1968         /* link NLA-data */
1969         link_list(fd, &adt->nla_tracks);
1970         direct_link_nladata(fd, &adt->nla_tracks);
1971
1972         /* clear temp pointers that may have been set... */
1973         // TODO: it's probably only a small cost to reload this anyway...
1974         adt->actstrip= NULL;
1975 }
1976
1977 /* ************ READ NODE TREE *************** */
1978
1979 /* singe node tree (also used for material/scene trees), ntree is not NULL */
1980 static void lib_link_ntree(FileData *fd, ID *id, bNodeTree *ntree)
1981 {
1982         bNode *node;
1983
1984         if(ntree->adt) lib_link_animdata(fd, &ntree->id, ntree->adt);
1985
1986         for(node= ntree->nodes.first; node; node= node->next)
1987                 node->id= newlibadr_us(fd, id->lib, node->id);
1988 }
1989
1990 /* library ntree linking after fileread */
1991 static void lib_link_nodetree(FileData *fd, Main *main)
1992 {
1993         bNodeTree *ntree;
1994
1995         /* only link ID pointers */
1996         for(ntree= main->nodetree.first; ntree; ntree= ntree->id.next) {
1997                 if(ntree->id.flag & LIB_NEEDLINK) {
1998                         ntree->id.flag -= LIB_NEEDLINK;
1999                         lib_link_ntree(fd, &ntree->id, ntree);
2000                 }
2001         }
2002 }
2003
2004 /* verify types for nodes and groups, all data has to be read */
2005 /* open = 0: appending/linking, open = 1: open new file (need to clean out dynamic
2006 * typedefs*/
2007 static void lib_verify_nodetree(Main *main, int open)
2008 {
2009         Scene *sce;
2010         Material *ma;
2011         Tex *tx;
2012         bNodeTree *ntree;
2013
2014         /* this crashes blender on undo/redo
2015                 if(open==1) {
2016                         reinit_nodesystem();
2017                 }*/
2018
2019         /* now create the own typeinfo structs an verify nodes */
2020         /* here we still assume no groups in groups */
2021         for(ntree= main->nodetree.first; ntree; ntree= ntree->id.next) {
2022                 ntreeVerifyTypes(ntree);        /* internal nodes, no groups! */
2023                 ntreeMakeOwnType(ntree);        /* for group usage */
2024         }
2025
2026         /* now verify all types in material trees, groups are set OK now */
2027         for(ma= main->mat.first; ma; ma= ma->id.next) {
2028                 if(ma->nodetree)
2029                         ntreeVerifyTypes(ma->nodetree);
2030         }
2031         /* and scene trees */
2032         for(sce= main->scene.first; sce; sce= sce->id.next) {
2033                 if(sce->nodetree)
2034                         ntreeVerifyTypes(sce->nodetree);
2035         }
2036         /* and texture trees */
2037         for(tx= main->tex.first; tx; tx= tx->id.next) {
2038                 if(tx->nodetree)
2039                         ntreeVerifyTypes(tx->nodetree);
2040         }
2041 }
2042
2043
2044
2045 /* ntree itself has been read! */
2046 static void direct_link_nodetree(FileData *fd, bNodeTree *ntree)
2047 {
2048         /* note: writing and reading goes in sync, for speed */
2049         bNode *node;
2050         bNodeSocket *sock;
2051         bNodeLink *link;
2052
2053         ntree->init= 0;         /* to set callbacks and force setting types */
2054         ntree->owntype= NULL;
2055         ntree->timecursor= NULL;
2056
2057         ntree->adt= newdataadr(fd, ntree->adt);
2058         direct_link_animdata(fd, ntree->adt);
2059
2060         link_list(fd, &ntree->nodes);
2061         for(node= ntree->nodes.first; node; node= node->next) {
2062                 if(node->type == NODE_DYNAMIC) {
2063                         node->custom1= 0;
2064                         node->custom1= BSET(node->custom1, NODE_DYNAMIC_LOADED);
2065                         node->typeinfo= NULL;
2066                 }
2067
2068                 node->storage= newdataadr(fd, node->storage);
2069                 if(node->storage) {
2070
2071                         /* could be handlerized at some point */
2072                         if(ntree->type==NTREE_SHADER && (node->type==SH_NODE_CURVE_VEC || node->type==SH_NODE_CURVE_RGB))
2073                                 direct_link_curvemapping(fd, node->storage);
2074                         else if(ntree->type==NTREE_COMPOSIT) {
2075                                 if( ELEM3(node->type, CMP_NODE_TIME, CMP_NODE_CURVE_VEC, CMP_NODE_CURVE_RGB))
2076                                         direct_link_curvemapping(fd, node->storage);
2077                                 else if(ELEM3(node->type, CMP_NODE_IMAGE, CMP_NODE_VIEWER, CMP_NODE_SPLITVIEWER))
2078                                         ((ImageUser *)node->storage)->ok= 1;
2079                         }
2080                         else if( ntree->type==NTREE_TEXTURE && (node->type==TEX_NODE_CURVE_RGB || node->type==TEX_NODE_CURVE_TIME) ) {
2081                                 direct_link_curvemapping(fd, node->storage);
2082                         }
2083                 }
2084                 link_list(fd, &node->inputs);
2085                 link_list(fd, &node->outputs);
2086         }
2087         link_list(fd, &ntree->links);
2088
2089         /* and we connect the rest */
2090         for(node= ntree->nodes.first; node; node= node->next) {
2091                 node->preview= newimaadr(fd, node->preview);
2092                 node->lasty= 0;
2093                 for(sock= node->inputs.first; sock; sock= sock->next)
2094                         sock->link= newdataadr(fd, sock->link);
2095                 for(sock= node->outputs.first; sock; sock= sock->next)
2096                         sock->ns.data= NULL;
2097         }
2098         for(link= ntree->links.first; link; link= link->next) {
2099                 link->fromnode= newdataadr(fd, link->fromnode);
2100                 link->tonode= newdataadr(fd, link->tonode);
2101                 link->fromsock= newdataadr(fd, link->fromsock);
2102                 link->tosock= newdataadr(fd, link->tosock);
2103         }
2104
2105         /* set selin and selout */
2106         for(node= ntree->nodes.first; node; node= node->next) {
2107                 for(sock= node->inputs.first; sock; sock= sock->next) {
2108                         if(sock->flag & SOCK_SEL) {
2109                                 ntree->selin= sock;
2110                                 break;
2111                         }
2112                 }
2113                 for(sock= node->outputs.first; sock; sock= sock->next) {
2114                         if(sock->flag & SOCK_SEL) {
2115                                 ntree->selout= sock;
2116                                 break;
2117                         }
2118                 }
2119         }
2120
2121         /* type verification is in lib-link */
2122 }
2123
2124 /* ************ READ ARMATURE ***************** */
2125
2126 static void lib_link_constraints(FileData *fd, ID *id, ListBase *conlist)
2127 {
2128         bConstraint *con;
2129
2130         for (con = conlist->first; con; con=con->next) {
2131                 /* patch for error introduced by changing constraints (dunno how) */
2132                 /* if con->data type changes, dna cannot resolve the pointer! (ton) */
2133                 if(con->data==NULL) {
2134                         con->type= CONSTRAINT_TYPE_NULL;
2135                 }
2136                 /* own ipo, all constraints have it */
2137                 con->ipo= newlibadr_us(fd, id->lib, con->ipo); // XXX depreceated - old animation system
2138
2139                 switch (con->type) {
2140                 case CONSTRAINT_TYPE_PYTHON:
2141                         {
2142                                 bPythonConstraint *data= (bPythonConstraint*)con->data;
2143                                 bConstraintTarget *ct;
2144
2145                                 for (ct= data->targets.first; ct; ct= ct->next)
2146                                         ct->tar = newlibadr(fd, id->lib, ct->tar);
2147
2148                                 data->text = newlibadr(fd, id->lib, data->text);
2149                                 //IDP_LibLinkProperty(data->prop, (fd->flags & FD_FLAGS_SWITCH_ENDIAN), fd);
2150                         }
2151                         break;
2152                 case CONSTRAINT_TYPE_ACTION:
2153                         {
2154                                 bActionConstraint *data;
2155                                 data= ((bActionConstraint*)con->data);
2156                                 data->tar = newlibadr(fd, id->lib, data->tar);
2157                                 data->act = newlibadr(fd, id->lib, data->act);
2158                         }
2159                         break;
2160                 case CONSTRAINT_TYPE_LOCLIKE:
2161                         {
2162                                 bLocateLikeConstraint *data;
2163                                 data= ((bLocateLikeConstraint*)con->data);
2164                                 data->tar = newlibadr(fd, id->lib, data->tar);
2165                         }
2166                         break;
2167                 case CONSTRAINT_TYPE_ROTLIKE:
2168                         {
2169                                 bRotateLikeConstraint *data;
2170                                 data= ((bRotateLikeConstraint*)con->data);
2171                                 data->tar = newlibadr(fd, id->lib, data->tar);
2172                         }
2173                         break;
2174                 case CONSTRAINT_TYPE_SIZELIKE:
2175                         {
2176                                 bSizeLikeConstraint *data;
2177                                 data= ((bSizeLikeConstraint*)con->data);
2178                                 data->tar = newlibadr(fd, id->lib, data->tar);
2179                         }
2180                         break;
2181                 case CONSTRAINT_TYPE_KINEMATIC:
2182                         {
2183                                 bKinematicConstraint *data;
2184                                 data = ((bKinematicConstraint*)con->data);
2185                                 data->tar = newlibadr(fd, id->lib, data->tar);
2186                                 data->poletar = newlibadr(fd, id->lib, data->poletar);
2187                         }
2188                         break;
2189                 case CONSTRAINT_TYPE_TRACKTO:
2190                         {
2191                                 bTrackToConstraint *data;
2192                                 data = ((bTrackToConstraint*)con->data);
2193                                 data->tar = newlibadr(fd, id->lib, data->tar);
2194                         }
2195                         break;
2196                 case CONSTRAINT_TYPE_MINMAX:
2197                         {
2198                                 bMinMaxConstraint *data;
2199                                 data = ((bMinMaxConstraint*)con->data);
2200                                 data->tar = newlibadr(fd, id->lib, data->tar);
2201                         }
2202                         break;
2203                 case CONSTRAINT_TYPE_LOCKTRACK:
2204                         {
2205                                 bLockTrackConstraint *data;
2206                                 data= ((bLockTrackConstraint*)con->data);
2207                                 data->tar = newlibadr(fd, id->lib, data->tar);
2208                         }
2209                         break;
2210                 case CONSTRAINT_TYPE_FOLLOWPATH:
2211                         {
2212                                 bFollowPathConstraint *data;
2213                                 data= ((bFollowPathConstraint*)con->data);
2214                                 data->tar = newlibadr(fd, id->lib, data->tar);
2215                         }
2216                         break;
2217                 case CONSTRAINT_TYPE_STRETCHTO:
2218                         {
2219                                 bStretchToConstraint *data;
2220                                 data= ((bStretchToConstraint*)con->data);
2221                                 data->tar = newlibadr(fd, id->lib, data->tar);
2222                         }
2223                         break;
2224                 case CONSTRAINT_TYPE_RIGIDBODYJOINT:
2225                         {
2226                                 bRigidBodyJointConstraint *data;
2227                                 data= ((bRigidBodyJointConstraint*)con->data);
2228                                 data->tar = newlibadr(fd, id->lib, data->tar);
2229                         }
2230                         break;
2231                 case CONSTRAINT_TYPE_CLAMPTO:
2232                         {
2233                                 bClampToConstraint *data;
2234                                 data= ((bClampToConstraint*)con->data);
2235                                 data->tar = newlibadr(fd, id->lib, data->tar);
2236                         }
2237                         break;
2238                 case CONSTRAINT_TYPE_CHILDOF:
2239                         {
2240                                 bChildOfConstraint *data;
2241                                 data= ((bChildOfConstraint*)con->data);
2242                                 data->tar = newlibadr(fd, id->lib, data->tar);
2243                         }
2244                         break;
2245                 case CONSTRAINT_TYPE_TRANSFORM:
2246                         {
2247                                 bTransformConstraint *data;
2248                                 data= ((bTransformConstraint*)con->data);
2249                                 data->tar = newlibadr(fd, id->lib, data->tar);
2250                         }
2251                         break;
2252                 case CONSTRAINT_TYPE_DISTLIMIT:
2253                         {
2254                                 bDistLimitConstraint *data;
2255                                 data= ((bDistLimitConstraint*)con->data);
2256                                 data->tar = newlibadr(fd, id->lib, data->tar);
2257                         }
2258                         break;
2259                 case CONSTRAINT_TYPE_SHRINKWRAP:
2260                         {
2261                                 bShrinkwrapConstraint *data;
2262                                 data= ((bShrinkwrapConstraint*)con->data);
2263                                 data->target = newlibadr(fd, id->lib, data->target);
2264                         }
2265                         break;
2266                 case CONSTRAINT_TYPE_NULL:
2267                         break;
2268                 }
2269         }
2270 }
2271
2272 static void direct_link_constraints(FileData *fd, ListBase *lb)
2273 {
2274         bConstraint *cons;
2275
2276         link_list(fd, lb);
2277         for (cons=lb->first; cons; cons=cons->next) {
2278                 cons->data = newdataadr(fd, cons->data);
2279
2280                 if (cons->type == CONSTRAINT_TYPE_PYTHON) {
2281                         bPythonConstraint *data= cons->data;
2282
2283                         link_list(fd, &data->targets);
2284
2285                         data->prop = newdataadr(fd, data->prop);
2286                         if (data->prop)
2287                                 IDP_DirectLinkProperty(data->prop, (fd->flags & FD_FLAGS_SWITCH_ENDIAN), fd);
2288                 }
2289         }
2290 }
2291
2292 static void lib_link_pose(FileData *fd, Object *ob, bPose *pose)
2293 {
2294         bPoseChannel *pchan;
2295         bArmature *arm= ob->data;
2296         int rebuild;
2297
2298         if (!pose || !arm)
2299                 return;
2300
2301         /* always rebuild to match proxy or lib changes */
2302         rebuild= ob->proxy || (ob->id.lib==NULL && arm->id.lib);
2303
2304         for (pchan = pose->chanbase.first; pchan; pchan=pchan->next) {
2305                 lib_link_constraints(fd, (ID *)ob, &pchan->constraints);
2306
2307                 /* hurms... loop in a loop, but yah... later... (ton) */
2308                 pchan->bone= get_named_bone(arm, pchan->name);
2309
2310                 pchan->custom= newlibadr(fd, arm->id.lib, pchan->custom);
2311                 if(pchan->bone==NULL)
2312                         rebuild= 1;
2313                 else if(ob->id.lib==NULL && arm->id.lib) {
2314                         /* local pose selection copied to armature, bit hackish */
2315                         pchan->bone->flag &= ~(BONE_SELECTED|BONE_ACTIVE);
2316                         pchan->bone->flag |= pchan->selectflag;
2317                 }
2318         }
2319
2320         if(rebuild) {
2321                 ob->recalc= OB_RECALC;
2322                 pose->flag |= POSE_RECALC;
2323         }
2324 }
2325
2326 static void lib_link_armature(FileData *fd, Main *main)
2327 {
2328         bArmature *arm;
2329
2330         arm= main->armature.first;
2331
2332         while(arm) {
2333                 if(arm->id.flag & LIB_NEEDLINK) {
2334                         arm->id.flag -= LIB_NEEDLINK;
2335                 }
2336                 arm= arm->id.next;
2337         }
2338 }
2339
2340 static void direct_link_bones(FileData *fd, Bone* bone)
2341 {
2342         Bone    *child;
2343
2344         bone->parent= newdataadr(fd, bone->parent);
2345
2346         link_list(fd, &bone->childbase);
2347
2348         for (child=bone->childbase.first; child; child=child->next) {
2349                 direct_link_bones(fd, child);
2350         }
2351 }
2352
2353 static void direct_link_armature(FileData *fd, bArmature *arm)
2354 {
2355         Bone    *bone;
2356
2357         link_list(fd, &arm->bonebase);
2358         arm->edbo= NULL;
2359         arm->sketch = NULL;
2360
2361         bone=arm->bonebase.first;
2362         while (bone) {
2363                 direct_link_bones(fd, bone);
2364                 bone=bone->next;
2365         }
2366 }
2367
2368 /* ************ READ CAMERA ***************** */
2369
2370 static void lib_link_camera(FileData *fd, Main *main)
2371 {
2372         Camera *ca;
2373
2374         ca= main->camera.first;
2375         while(ca) {
2376                 if(ca->id.flag & LIB_NEEDLINK) {
2377                         if (ca->adt) lib_link_animdata(fd, &ca->id, ca->adt);
2378
2379                         ca->ipo= newlibadr_us(fd, ca->id.lib, ca->ipo); // XXX depreceated - old animation system
2380
2381                         ca->dof_ob= newlibadr_us(fd, ca->id.lib, ca->dof_ob);
2382
2383                         ca->id.flag -= LIB_NEEDLINK;
2384                 }
2385                 ca= ca->id.next;
2386         }
2387 }
2388
2389 static void direct_link_camera(FileData *fd, Camera *ca)
2390 {
2391         ca->adt= newdataadr(fd, ca->adt);
2392         direct_link_animdata(fd, ca->adt);
2393 }
2394
2395
2396 /* ************ READ LAMP ***************** */
2397
2398 static void lib_link_lamp(FileData *fd, Main *main)
2399 {
2400         Lamp *la;
2401         MTex *mtex;
2402         int a;
2403
2404         la= main->lamp.first;
2405         while(la) {
2406                 if(la->id.flag & LIB_NEEDLINK) {
2407                         if (la->adt) lib_link_animdata(fd, &la->id, la->adt);
2408
2409                         for(a=0; a<MAX_MTEX; a++) {
2410                                 mtex= la->mtex[a];
2411                                 if(mtex) {
2412                                         mtex->tex= newlibadr_us(fd, la->id.lib, mtex->tex);
2413                                         mtex->object= newlibadr(fd, la->id.lib, mtex->object);
2414                                 }
2415                         }
2416
2417                         la->ipo= newlibadr_us(fd, la->id.lib, la->ipo); // XXX depreceated - old animation system
2418
2419                         la->id.flag -= LIB_NEEDLINK;
2420                 }
2421                 la= la->id.next;
2422         }
2423 }
2424
2425 static void direct_link_lamp(FileData *fd, Lamp *la)
2426 {
2427         int a;
2428
2429         la->adt= newdataadr(fd, la->adt);
2430         direct_link_animdata(fd, la->adt);
2431
2432         for(a=0; a<MAX_MTEX; a++) {
2433                 la->mtex[a]= newdataadr(fd, la->mtex[a]);
2434         }
2435
2436         la->curfalloff= newdataadr(fd, la->curfalloff);
2437         if(la->curfalloff)
2438                 direct_link_curvemapping(fd, la->curfalloff);
2439
2440         la->preview = direct_link_preview_image(fd, la->preview);
2441 }
2442
2443 /* ************ READ keys ***************** */
2444
2445 static void lib_link_key(FileData *fd, Main *main)
2446 {
2447         Key *key;
2448
2449         key= main->key.first;
2450         while(key) {
2451                 if(key->id.flag & LIB_NEEDLINK) {
2452                         if(key->adt) lib_link_animdata(fd, &key->id, key->adt);
2453
2454                         key->ipo= newlibadr_us(fd, key->id.lib, key->ipo); // XXX depreceated - old animation system
2455                         key->from= newlibadr(fd, key->id.lib, key->from);
2456
2457                         key->id.flag -= LIB_NEEDLINK;
2458                 }
2459                 key= key->id.next;
2460         }
2461 }
2462
2463 static void switch_endian_keyblock(Key *key, KeyBlock *kb)
2464 {
2465         int elemsize, a, b;
2466         char *data, *poin, *cp;
2467
2468         elemsize= key->elemsize;
2469         data= kb->data;
2470
2471         for(a=0; a<kb->totelem; a++) {
2472
2473                 cp= key->elemstr;
2474                 poin= data;
2475
2476                 while( cp[0] ) {        /* cp[0]==amount */
2477
2478                         switch(cp[1]) {         /* cp[1]= type */
2479                         case IPO_FLOAT:
2480                         case IPO_BPOINT:
2481                         case IPO_BEZTRIPLE:
2482                                 b= cp[0];
2483                                 while(b--) {
2484                                         SWITCH_INT((*poin));
2485                                         poin+= 4;
2486                                 }
2487                                 break;
2488                         }
2489
2490                         cp+= 2;
2491
2492                 }
2493                 data+= elemsize;
2494         }
2495 }
2496
2497 static void direct_link_key(FileData *fd, Key *key)
2498 {
2499         KeyBlock *kb;
2500
2501         link_list(fd, &(key->block));
2502
2503         key->adt= newdataadr(fd, key->adt);
2504         direct_link_animdata(fd, key->adt);
2505
2506         key->refkey= newdataadr(fd, key->refkey);
2507
2508         kb= key->block.first;
2509         while(kb) {
2510
2511                 kb->data= newdataadr(fd, kb->data);
2512
2513                 if(fd->flags & FD_FLAGS_SWITCH_ENDIAN)
2514                         switch_endian_keyblock(key, kb);
2515
2516                 kb= kb->next;
2517         }
2518 }
2519
2520 /* ************ READ mball ***************** */
2521
2522 static void lib_link_mball(FileData *fd, Main *main)
2523 {
2524         MetaBall *mb;
2525         int a;
2526
2527         mb= main->mball.first;
2528         while(mb) {
2529                 if(mb->id.flag & LIB_NEEDLINK) {
2530                         if (mb->adt) lib_link_animdata(fd, &mb->id, mb->adt);
2531
2532                         for(a=0; a<mb->totcol; a++) mb->mat[a]= newlibadr_us(fd, mb->id.lib, mb->mat[a]);
2533
2534                         mb->ipo= newlibadr_us(fd, mb->id.lib, mb->ipo); // XXX depreceated - old animation system
2535
2536                         mb->id.flag -= LIB_NEEDLINK;
2537                 }
2538                 mb= mb->id.next;
2539         }
2540 }
2541
2542 static void direct_link_mball(FileData *fd, MetaBall *mb)
2543 {
2544         mb->adt= newdataadr(fd, mb->adt);
2545         direct_link_animdata(fd, mb->adt);
2546
2547         mb->mat= newdataadr(fd, mb->mat);
2548         test_pointer_array(fd, (void **)&mb->mat);
2549
2550         link_list(fd, &(mb->elems));
2551
2552         mb->disp.first= mb->disp.last= NULL;
2553         mb->editelems= NULL;
2554         mb->bb= NULL;
2555 /*      mb->edit_elems.first= mb->edit_elems.last= NULL;*/
2556         mb->lastelem= NULL;
2557 }
2558
2559 /* ************ READ WORLD ***************** */
2560
2561 static void lib_link_world(FileData *fd, Main *main)
2562 {
2563         World *wrld;
2564         MTex *mtex;
2565         int a;
2566
2567         wrld= main->world.first;
2568         while(wrld) {
2569                 if(wrld->id.flag & LIB_NEEDLINK) {
2570                         if (wrld->adt) lib_link_animdata(fd, &wrld->id, wrld->adt);
2571
2572                         wrld->ipo= newlibadr_us(fd, wrld->id.lib, wrld->ipo); // XXX depreceated - old animation system
2573
2574                         for(a=0; a<MAX_MTEX; a++) {
2575                                 mtex= wrld->mtex[a];
2576                                 if(mtex) {
2577                                         mtex->tex= newlibadr_us(fd, wrld->id.lib, mtex->tex);
2578                                         mtex->object= newlibadr(fd, wrld->id.lib, mtex->object);
2579                                 }
2580                         }
2581
2582                         wrld->id.flag -= LIB_NEEDLINK;
2583                 }
2584                 wrld= wrld->id.next;
2585         }
2586 }
2587
2588 static void direct_link_world(FileData *fd, World *wrld)
2589 {
2590         int a;
2591
2592         wrld->adt= newdataadr(fd, wrld->adt);
2593         direct_link_animdata(fd, wrld->adt);
2594
2595         for(a=0; a<MAX_MTEX; a++) {
2596                 wrld->mtex[a]= newdataadr(fd, wrld->mtex[a]);
2597         }
2598         wrld->preview = direct_link_preview_image(fd, wrld->preview);
2599 }
2600
2601
2602 /* ************ READ VFONT ***************** */
2603
2604 static void lib_link_vfont(FileData *fd, Main *main)
2605 {
2606         VFont *vf;
2607
2608         vf= main->vfont.first;
2609         while(vf) {
2610                 if(vf->id.flag & LIB_NEEDLINK) {
2611                         vf->id.flag -= LIB_NEEDLINK;
2612                 }
2613                 vf= vf->id.next;
2614         }
2615 }
2616
2617 static void direct_link_vfont(FileData *fd, VFont *vf)
2618 {
2619         vf->data= NULL;
2620         vf->packedfile= direct_link_packedfile(fd, vf->packedfile);
2621 }
2622
2623 /* ************ READ TEXT ****************** */
2624
2625 static void lib_link_text(FileData *fd, Main *main)
2626 {
2627         Text *text;
2628
2629         text= main->text.first;
2630         while(text) {
2631                 if(text->id.flag & LIB_NEEDLINK) {
2632                         text->id.flag -= LIB_NEEDLINK;
2633                 }
2634                 text= text->id.next;
2635         }
2636 }
2637
2638 static void direct_link_text(FileData *fd, Text *text)
2639 {
2640         TextLine *ln;
2641
2642         text->name= newdataadr(fd, text->name);
2643
2644         text->undo_pos= -1;
2645         text->undo_len= TXT_INIT_UNDO;
2646         text->undo_buf= MEM_mallocN(text->undo_len, "undo buf");
2647
2648         text->compiled= NULL;
2649
2650 /*
2651         if(text->flags & TXT_ISEXT) {
2652                 reopen_text(text);
2653         } else {
2654 */
2655
2656         link_list(fd, &text->lines);
2657         link_list(fd, &text->markers);
2658
2659         text->curl= newdataadr(fd, text->curl);
2660         text->sell= newdataadr(fd, text->sell);
2661
2662         ln= text->lines.first;
2663         while(ln) {
2664                 ln->line= newdataadr(fd, ln->line);
2665                 ln->format= NULL;
2666
2667                 if (ln->len != (int) strlen(ln->line)) {
2668                         printf("Error loading text, line lengths differ\n");
2669                         ln->len = strlen(ln->line);
2670                 }
2671
2672                 ln= ln->next;
2673         }
2674
2675         text->flags = (text->flags) & ~TXT_ISEXT;
2676
2677         text->id.us= 1;
2678 }
2679
2680 /* ************ READ IMAGE ***************** */
2681
2682 static void lib_link_image(FileData *fd, Main *main)
2683 {
2684         Image *ima;
2685
2686         ima= main->image.first;
2687         while (ima) {
2688                 if(ima->id.flag & LIB_NEEDLINK) {
2689                         if (ima->id.properties) IDP_LibLinkProperty(ima->id.properties, (fd->flags & FD_FLAGS_SWITCH_ENDIAN), fd);
2690
2691                         ima->id.flag -= LIB_NEEDLINK;
2692                 }
2693                 ima= ima->id.next;
2694         }
2695 }
2696
2697 static void link_ibuf_list(FileData *fd, ListBase *lb)
2698 {
2699         Link *ln, *prev;
2700
2701         if(lb->first==NULL) return;
2702
2703         lb->first= newimaadr(fd, lb->first);
2704         ln= lb->first;
2705         prev= NULL;
2706         while(ln) {
2707                 ln->next= newimaadr(fd, ln->next);
2708                 ln->prev= prev;
2709                 prev= ln;
2710                 ln= ln->next;
2711         }
2712         lb->last= prev;
2713 }
2714
2715 static void direct_link_image(FileData *fd, Image *ima)
2716 {
2717         /* for undo system, pointers could be restored */
2718         if(fd->imamap)
2719                 link_ibuf_list(fd, &ima->ibufs);
2720         else
2721                 ima->ibufs.first= ima->ibufs.last= NULL;
2722
2723         /* if not restored, we keep the binded opengl index */
2724         if(ima->ibufs.first==NULL) {
2725                 ima->bindcode= 0;
2726                 ima->gputexture= NULL;
2727         }
2728
2729         ima->anim= NULL;
2730         ima->rr= NULL;
2731         ima->repbind= NULL;
2732         ima->render_text= newdataadr(fd, ima->render_text);
2733
2734         ima->packedfile = direct_link_packedfile(fd, ima->packedfile);
2735         ima->preview = direct_link_preview_image(fd, ima->preview);
2736         ima->ok= 1;
2737 }
2738
2739
2740 /* ************ READ CURVE ***************** */
2741
2742 static void lib_link_curve(FileData *fd, Main *main)
2743 {
2744         Curve *cu;
2745         int a;
2746
2747         cu= main->curve.first;
2748         while(cu) {
2749                 if(cu->id.flag & LIB_NEEDLINK) {
2750                         if(cu->adt) lib_link_animdata(fd, &cu->id, cu->adt);
2751
2752                         for(a=0; a<cu->totcol; a++) cu->mat[a]= newlibadr_us(fd, cu->id.lib, cu->mat[a]);
2753
2754                         cu->bevobj= newlibadr(fd, cu->id.lib, cu->bevobj);
2755                         cu->taperobj= newlibadr(fd, cu->id.lib, cu->taperobj);
2756                         cu->textoncurve= newlibadr(fd, cu->id.lib, cu->textoncurve);
2757                         cu->vfont= newlibadr_us(fd, cu->id.lib, cu->vfont);
2758                         cu->vfontb= newlibadr_us(fd, cu->id.lib, cu->vfontb);
2759                         cu->vfonti= newlibadr_us(fd, cu->id.lib, cu->vfonti);
2760                         cu->vfontbi= newlibadr_us(fd, cu->id.lib, cu->vfontbi);
2761
2762                         cu->ipo= newlibadr_us(fd, cu->id.lib, cu->ipo); // XXX depreceated - old animation system
2763                         cu->key= newlibadr_us(fd, cu->id.lib, cu->key);
2764
2765                         cu->id.flag -= LIB_NEEDLINK;
2766                 }
2767                 cu= cu->id.next;
2768         }
2769 }
2770
2771
2772 static void switch_endian_knots(Nurb *nu)
2773 {
2774         int len;
2775
2776         if(nu->knotsu) {
2777                 len= KNOTSU(nu);
2778                 while(len--) {
2779                         SWITCH_INT(nu->knotsu[len]);
2780                 }
2781         }
2782         if(nu->knotsv) {
2783                 len= KNOTSV(nu);
2784                 while(len--) {
2785                         SWITCH_INT(nu->knotsv[len]);
2786                 }
2787         }
2788 }
2789
2790 static void direct_link_curve(FileData *fd, Curve *cu)
2791 {
2792         Nurb *nu;
2793         TextBox *tb;
2794
2795         cu->adt= newdataadr(fd, cu->adt);
2796         direct_link_animdata(fd, cu->adt);
2797
2798         cu->mat= newdataadr(fd, cu->mat);
2799         test_pointer_array(fd, (void **)&cu->mat);
2800         cu->str= newdataadr(fd, cu->str);
2801         cu->strinfo= newdataadr(fd, cu->strinfo);
2802         cu->tb= newdataadr(fd, cu->tb);
2803
2804         if(cu->vfont==0) link_list(fd, &(cu->nurb));
2805         else {
2806                 cu->nurb.first=cu->nurb.last= 0;
2807
2808                 tb= MEM_callocN(MAXTEXTBOX*sizeof(TextBox), "TextBoxread");
2809                 if (cu->tb) {
2810                         memcpy(tb, cu->tb, cu->totbox*sizeof(TextBox));
2811                         MEM_freeN(cu->tb);
2812                         cu->tb= tb;
2813                 } else {
2814                         cu->totbox = 1;
2815                         cu->actbox = 1;
2816                         cu->tb = tb;
2817                         cu->tb[0].w = cu->linewidth;
2818                 }
2819                 if (cu->wordspace == 0.0) cu->wordspace = 1.0;
2820         }
2821
2822         cu->bev.first=cu->bev.last= NULL;
2823         cu->disp.first=cu->disp.last= NULL;
2824         cu->editnurb= NULL;
2825         cu->lastselbp= NULL;
2826         cu->path= NULL;
2827         cu->editfont= NULL;
2828
2829         nu= cu->nurb.first;
2830         while(nu) {
2831                 nu->bezt= newdataadr(fd, nu->bezt);
2832                 nu->bp= newdataadr(fd, nu->bp);
2833                 nu->knotsu= newdataadr(fd, nu->knotsu);
2834                 nu->knotsv= newdataadr(fd, nu->knotsv);
2835                 if (cu->vfont==0) nu->charidx= nu->mat_nr;
2836
2837                 if(fd->flags & FD_FLAGS_SWITCH_ENDIAN) {
2838                         switch_endian_knots(nu);
2839                 }
2840
2841                 nu= nu->next;
2842         }
2843         cu->bb= NULL;
2844 }
2845
2846 /* ************ READ TEX ***************** */
2847
2848 static void lib_link_texture(FileData *fd, Main *main)
2849 {
2850         Tex *tex;
2851
2852         tex= main->tex.first;
2853         while(tex) {
2854                 if(tex->id.flag & LIB_NEEDLINK) {
2855                         if(tex->adt) lib_link_animdata(fd, &tex->id, tex->adt);
2856
2857                         tex->ima= newlibadr_us(fd, tex->id.lib, tex->ima);
2858                         tex->ipo= newlibadr_us(fd, tex->id.lib, tex->ipo);
2859                         if(tex->env) tex->env->object= newlibadr(fd, tex->id.lib, tex->env->object);
2860                         if(tex->pd) {
2861                                 tex->pd->object= newlibadr(fd, tex->id.lib, tex->pd->object);
2862                                 tex->pd->psys= newlibadr(fd, tex->id.lib, tex->pd->psys);
2863                         }
2864                         if(tex->vd) tex->vd->object= newlibadr(fd, tex->id.lib, tex->vd->object);
2865
2866                         if(tex->nodetree)
2867                                 lib_link_ntree(fd, &tex->id, tex->nodetree);
2868
2869                         tex->id.flag -= LIB_NEEDLINK;
2870                 }
2871                 tex= tex->id.next;
2872         }
2873 }
2874
2875 static void direct_link_texture(FileData *fd, Tex *tex)
2876 {
2877         tex->adt= newdataadr(fd, tex->adt);
2878         direct_link_animdata(fd, tex->adt);
2879
2880         tex->plugin= newdataadr(fd, tex->plugin);
2881         if(tex->plugin) {
2882                 tex->plugin->handle= 0;
2883                 open_plugin_tex(tex->plugin);
2884                 /* initialize data for this instance, if an initialization
2885                  * function exists.
2886                  */
2887                 if (tex->plugin->instance_init)
2888                         tex->plugin->instance_init((void *) tex->plugin->data);
2889         }
2890         tex->coba= newdataadr(fd, tex->coba);
2891         tex->env= newdataadr(fd, tex->env);
2892         if(tex->env) {
2893                 tex->env->ima= NULL;
2894                 memset(tex->env->cube, 0, 6*sizeof(void *));
2895                 tex->env->ok= 0;
2896         }
2897         tex->pd= newdataadr(fd, tex->pd);
2898         if(tex->pd) {
2899                 tex->pd->point_tree = NULL;
2900                 tex->pd->coba= newdataadr(fd, tex->pd->coba);
2901         }
2902
2903         tex->vd= newdataadr(fd, tex->vd);
2904         if(tex->vd) {
2905                 tex->vd->dataset = NULL;
2906         }
2907
2908         tex->nodetree= newdataadr(fd, tex->nodetree);
2909         if(tex->nodetree)
2910                 direct_link_nodetree(fd, tex->nodetree);
2911
2912         tex->preview = direct_link_preview_image(fd, tex->preview);
2913
2914         tex->iuser.ok= 1;
2915 }
2916
2917
2918
2919 /* ************ READ MATERIAL ***************** */
2920
2921 static void lib_link_material(FileData *fd, Main *main)
2922 {
2923         Material *ma;
2924         MTex *mtex;
2925         int a;
2926
2927         ma= main->mat.first;
2928         while(ma) {
2929                 if(ma->id.flag & LIB_NEEDLINK) {
2930                         if(ma->adt) lib_link_animdata(fd, &ma->id, ma->adt);
2931
2932                         /*Link ID Properties -- and copy this comment EXACTLY for easy finding
2933                         of library blocks that implement this.*/
2934                         if (ma->id.properties) IDP_LibLinkProperty(ma->id.properties, (fd->flags & FD_FLAGS_SWITCH_ENDIAN), fd);
2935
2936                         ma->ipo= newlibadr_us(fd, ma->id.lib, ma->ipo);
2937                         ma->group= newlibadr_us(fd, ma->id.lib, ma->group);
2938
2939                         for(a=0; a<MAX_MTEX; a++) {
2940                                 mtex= ma->mtex[a];
2941                                 if(mtex) {
2942                                         mtex->tex= newlibadr_us(fd, ma->id.lib, mtex->tex);
2943                                         mtex->object= newlibadr(fd, ma->id.lib, mtex->object);
2944                                 }
2945                         }
2946
2947                         if(ma->nodetree)
2948                                 lib_link_ntree(fd, &ma->id, ma->nodetree);
2949
2950                         ma->id.flag -= LIB_NEEDLINK;
2951                 }
2952                 ma= ma->id.next;
2953         }
2954 }
2955
2956 static void direct_link_material(FileData *fd, Material *ma)
2957 {
2958         int a;
2959
2960         ma->adt= newdataadr(fd, ma->adt);
2961         direct_link_animdata(fd, ma->adt);
2962
2963         for(a=0; a<MAX_MTEX; a++) {
2964                 ma->mtex[a]= newdataadr(fd, ma->mtex[a]);
2965         }
2966
2967         ma->ramp_col= newdataadr(fd, ma->ramp_col);
2968         ma->ramp_spec= newdataadr(fd, ma->ramp_spec);
2969
2970         ma->nodetree= newdataadr(fd, ma->nodetree);
2971         if(ma->nodetree)
2972                 direct_link_nodetree(fd, ma->nodetree);
2973
2974         ma->preview = direct_link_preview_image(fd, ma->preview);
2975         ma->gpumaterial.first = ma->gpumaterial.last = NULL;
2976 }
2977
2978 /* ************ READ PARTICLE SETTINGS ***************** */
2979
2980 static void direct_link_pointcache(FileData *fd, PointCache *cache)
2981 {
2982         if((cache->flag & PTCACHE_DISK_CACHE)==0) {
2983                 PTCacheMem *pm;
2984                 int i;
2985
2986                 link_list(fd, &cache->mem_cache);
2987
2988                 pm = cache->mem_cache.first;
2989
2990                 for(; pm; pm=pm->next) {
2991                         if(pm->index_array)
2992                                 pm->index_array = newdataadr(fd, pm->index_array);
2993
2994                         for(i=0; i<BPHYS_TOT_DATA; i++) {
2995                                 if(pm->data[i] && pm->data_types & (1<<i))
2996                                         pm->data[i] = newdataadr(fd, pm->data[i]);
2997                         }
2998                 }
2999         }
3000         else
3001                 cache->mem_cache.first = cache->mem_cache.last = NULL;
3002
3003         cache->flag &= ~PTCACHE_SIMULATION_VALID;
3004         cache->simframe= 0;
3005         cache->edit= NULL;
3006         cache->free_edit= NULL;
3007 }
3008
3009 static void direct_link_pointcache_list(FileData *fd, ListBase *ptcaches, PointCache **ocache)
3010 {
3011         PointCache *cache;
3012
3013         if(ptcaches->first) {
3014                 link_list(fd, ptcaches);
3015                 for(cache=ptcaches->first; cache; cache=cache->next)
3016                         direct_link_pointcache(fd, cache);
3017
3018                 *ocache = newdataadr(fd, *ocache);
3019         }
3020         else if(*ocache) {
3021                 /* old "single" caches need to be linked too */
3022                 *ocache = newdataadr(fd, *ocache);
3023                 direct_link_pointcache(fd, *ocache);
3024
3025                 ptcaches->first = ptcaches->last = *ocache;
3026         }
3027 }
3028
3029 static void lib_link_particlesettings(FileData *fd, Main *main)
3030 {
3031         ParticleSettings *part;
3032
3033         part= main->particle.first;
3034         while(part) {
3035                 if(part->id.flag & LIB_NEEDLINK) {
3036                         if (part->adt) lib_link_animdata(fd, &part->id, part->adt);
3037                         part->ipo= newlibadr_us(fd, part->id.lib, part->ipo); // XXX depreceated - old animation system
3038
3039                         part->dup_ob = newlibadr(fd, part->id.lib, part->dup_ob);
3040                         part->dup_group = newlibadr(fd, part->id.lib, part->dup_group);
3041                         part->eff_group = newlibadr(fd, part->id.lib, part->eff_group);
3042                         part->bb_ob = newlibadr(fd, part->id.lib, part->bb_ob);
3043                         if(part->boids) {
3044                                 BoidState *state = part->boids->states.first;
3045                                 BoidRule *rule;
3046                                 for(; state; state=state->next) {
3047                                         rule = state->rules.first;
3048                                 for(; rule; rule=rule->next)
3049                                         switch(rule->type) {
3050                                                 case eBoidRuleType_Goal:
3051                                                 case eBoidRuleType_Avoid:
3052                                                 {
3053                                                         BoidRuleGoalAvoid *brga = (BoidRuleGoalAvoid*)rule;
3054                                                         brga->ob = newlibadr(fd, part->id.lib, brga->ob);
3055                                                         break;
3056                                                 }
3057                                                 case eBoidRuleType_FollowLeader:
3058                                                 {
3059                                                         BoidRuleFollowLeader *brfl = (BoidRuleFollowLeader*)rule;
3060                                                         brfl->ob = newlibadr(fd, part->id.lib, brfl->ob);
3061                                                         break;
3062                                                 }
3063                                         }
3064                                 }
3065                         }
3066                         part->id.flag -= LIB_NEEDLINK;
3067                 }
3068                 part= part->id.next;
3069         }
3070 }
3071
3072 static void direct_link_particlesettings(FileData *fd, ParticleSettings *part)
3073 {
3074         part->adt= newdataadr(fd, part->adt);
3075         part->pd= newdataadr(fd, part->pd);
3076         part->pd2= newdataadr(fd, part->pd2);
3077
3078         part->boids= newdataadr(fd, part->boids);
3079
3080         if(part->boids) {
3081                 BoidState *state;
3082                 link_list(fd, &part->boids->states);
3083
3084                 for(state=part->boids->states.first; state; state=state->next) {
3085                         link_list(fd, &state->rules);
3086                         link_list(fd, &state->conditions);
3087                         link_list(fd, &state->actions);
3088                 }
3089         }
3090 }
3091
3092 static void lib_link_particlesystems(FileData *fd, Object *ob, ID *id, ListBase *particles)
3093 {
3094         ParticleSystem *psys, *psysnext;
3095
3096         for(psys=particles->first; psys; psys=psysnext){
3097                 psysnext= psys->next;
3098
3099                 psys->part = newlibadr_us(fd, id->lib, psys->part);
3100                 if(psys->part) {
3101                         ParticleTarget *pt = psys->targets.first;
3102
3103                         for(; pt; pt=pt->next)
3104                                 pt->ob=newlibadr(fd, id->lib, pt->ob);
3105
3106                         psys->target_ob = newlibadr(fd, id->lib, psys->target_ob);
3107                 }
3108                 else {
3109                         /* particle modifier must be removed before particle system */
3110                         ParticleSystemModifierData *psmd= psys_get_modifier(ob,psys);
3111                         BLI_remlink(&ob->modifiers, psmd);
3112                         modifier_free((ModifierData *)psmd);
3113
3114                         BLI_remlink(particles, psys);
3115                         MEM_freeN(psys);
3116                 }
3117         }
3118 }
3119 static void direct_link_particlesystems(FileData *fd, ListBase *particles)
3120 {
3121         ParticleSystem *psys;
3122         ParticleData *pa;
3123         int a;
3124
3125         for(psys=particles->first; psys; psys=psys->next) {
3126                 psys->particles=newdataadr(fd,psys->particles);
3127
3128                 if(psys->particles && psys->particles->hair){
3129                         for(a=0,pa=psys->particles; a<psys->totpart; a++, pa++)
3130                                 pa->hair=newdataadr(fd,pa->hair);
3131                 }
3132
3133                 if(psys->particles && psys->particles->keys){
3134                         for(a=0,pa=psys->particles; a<psys->totpart; a++, pa++) {
3135                                 pa->keys= NULL;
3136                                 pa->totkey= 0;
3137                         }
3138
3139                         psys->flag &= ~PSYS_KEYED;
3140                 }
3141
3142                 if(psys->particles && psys->particles->boid) {
3143                         pa = psys->particles;
3144                         pa->boid = newdataadr(fd, pa->boid);
3145                         for(a=1,pa++; a<psys->totpart; a++, pa++)
3146                                 pa->boid = (pa-1)->boid + 1;
3147                 }
3148                 else {
3149                         for(a=0,pa=psys->particles; a<psys->totpart; a++, pa++)
3150                                 pa->boid = NULL;
3151                 }
3152
3153
3154                 psys->child=newdataadr(fd,psys->child);
3155                 psys->effectors.first=psys->effectors.last=0;
3156
3157                 link_list(fd, &psys->targets);
3158
3159                 psys->edit = NULL;
3160                 psys->free_edit = NULL;
3161                 psys->pathcache = 0;
3162                 psys->childcache = 0;
3163                 psys->pathcachebufs.first = psys->pathcachebufs.last = 0;
3164                 psys->childcachebufs.first = psys->childcachebufs.last = 0;
3165                 psys->reactevents.first = psys->reactevents.last = 0;
3166                 psys->frand = NULL;
3167                 psys->pdd = NULL;
3168
3169                 direct_link_pointcache_list(fd, &psys->ptcaches, &psys->pointcache);
3170
3171                 if(psys->clmd) {
3172                         psys->clmd = newdataadr(fd, psys->clmd);
3173                         psys->clmd->clothObject = NULL;
3174
3175                         psys->clmd->sim_parms= newdataadr(fd, psys->clmd->sim_parms);
3176                         psys->clmd->coll_parms= newdataadr(fd, psys->clmd->coll_parms);
3177
3178                         if(psys->clmd->sim_parms) {
3179                                 if(psys->clmd->sim_parms->presets > 10)
3180                                         psys->clmd->sim_parms->presets = 0;
3181                         }
3182
3183                         psys->hair_in_dm = psys->hair_out_dm = NULL;
3184
3185                         psys->clmd->point_cache = psys->pointcache;
3186                 }
3187
3188                 psys->tree = NULL;
3189         }
3190         return;
3191 }
3192
3193 /* ************ READ MESH ***************** */
3194
3195 static void lib_link_mtface(FileData *fd, Mesh *me, MTFace *mtface, int totface)
3196 {
3197         MTFace *tf= mtface;
3198         int i;
3199
3200         for (i=0; i<totface; i++, tf++) {
3201                 tf->tpage= newlibadr(fd, me->id.lib, tf->tpage);
3202                 if(tf->tpage && tf->tpage->id.us==0)
3203                         tf->tpage->id.us= 1;
3204         }
3205 }
3206
3207 static void lib_link_customdata_mtface(FileData *fd, Mesh *me, CustomData *fdata, int totface)
3208 {
3209         int i;
3210         for(i=0; i<fdata->totlayer; i++) {
3211                 CustomDataLayer *layer = &fdata->layers[i];
3212
3213                 if(layer->type == CD_MTFACE)
3214                         lib_link_mtface(fd, me, layer->data, totface);
3215         }
3216
3217 }
3218
3219 static void lib_link_mesh(FileData *fd, Main *main)
3220 {
3221         Mesh *me;
3222
3223         me= main->mesh.first;
3224         while(me) {
3225                 if(me->id.flag & LIB_NEEDLINK) {
3226                         int i;
3227
3228                         /*Link ID Properties -- and copy this comment EXACTLY for easy finding
3229                         of library blocks that implement this.*/
3230                         if (me->id.properties) IDP_LibLinkProperty(me->id.properties, (fd->flags & FD_FLAGS_SWITCH_ENDIAN), fd);
3231
3232                         /* this check added for python created meshes */
3233                         if(me->mat) {
3234                                 for(i=0; i<me->totcol; i++) {
3235                                         me->mat[i]= newlibadr_us(fd, me->id.lib, me->mat[i]);
3236                                 }
3237                         }
3238                         else me->totcol= 0;
3239
3240                         me->ipo= newlibadr_us(fd, me->id.lib, me->ipo);
3241                         me->key= newlibadr_us(fd, me->id.lib, me->key);
3242                         me->texcomesh= newlibadr_us(fd, me->id.lib, me->texcomesh);
3243
3244                         lib_link_customdata_mtface(fd, me, &me->fdata, me->totface);
3245                         if(me->mr && me->mr->levels.first)
3246                                 lib_link_customdata_mtface(fd, me, &me->mr->fdata,
3247                                                            ((MultiresLevel*)me->mr->levels.first)->totface);
3248
3249                         me->id.flag -= LIB_NEEDLINK;
3250                 }
3251                 me= me->id.next;
3252         }
3253 }
3254
3255 static void direct_link_dverts(FileData *fd, int count, MDeformVert *mdverts)
3256 {
3257         int     i;
3258
3259         if (!mdverts)
3260                 return;
3261
3262         for (i=0; i<count; i++) {
3263                 mdverts[i].dw=newdataadr(fd, mdverts[i].dw);
3264                 if (!mdverts[i].dw)
3265                         mdverts[i].totweight=0;
3266         }
3267 }
3268
3269 static void direct_link_mdisps(FileData *fd, int count, MDisps *mdisps)
3270 {
3271         if(mdisps) {