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 #ifdef WIN32
  33 #include "winsock2.h"
  34 #include "BLI_winstuff.h"
  35 #endif
  36
  37 #include <limits.h>
  38 #include <stdio.h> // for printf fopen fwrite fclose sprintf FILE
  39 #include <stdlib.h> // for getenv atoi
  40 #include <fcntl.h> // for open
  41 #include <string.h> // for strrchr strncmp strstr
  42 #include <math.h> // for fabs
  43
  44 #ifndef WIN32
  45     #include <unistd.h> // for read close
  46     #include <sys/param.h> // for MAXPATHLEN
  47 #else
  48     #include <io.h> // for open close read
  49 #endif
  50
  51 #include "DNA_anim_types.h"
  52 #include "DNA_action_types.h"
  53 #include "DNA_armature_types.h"
  54 #include "DNA_ID.h"
  55 #include "DNA_actuator_types.h"
  56 #include "DNA_brush_types.h"
  57 #include "DNA_camera_types.h"
  58 #include "DNA_cloth_types.h"
  59 #include "DNA_color_types.h"
  60 #include "DNA_controller_types.h"
  61 #include "DNA_constraint_types.h"
  62 #include "DNA_curve_types.h"
  63 #include "DNA_customdata_types.h"
  64 #include "DNA_effect_types.h"
  65 #include "DNA_fileglobal_types.h"
  66 #include "DNA_genfile.h"
  67 #include "DNA_group_types.h"
  68 #include "DNA_gpencil_types.h"
  69 #include "DNA_ipo_types.h"
  70 #include "DNA_image_types.h"
  71 #include "DNA_key_types.h"
  72 #include "DNA_lattice_types.h"
  73 #include "DNA_lamp_types.h"
  74 #include "DNA_meta_types.h"
  75 #include "DNA_material_types.h"
  76 #include "DNA_mesh_types.h"
  77 #include "DNA_meshdata_types.h"
  78 #include "DNA_modifier_types.h"
  79 #include "DNA_nla_types.h"
  80 #include "DNA_node_types.h"
  81 #include "DNA_object_types.h"
  82 #include "DNA_object_force.h"
  83 #include "DNA_object_fluidsim.h" // NT
  84 #include "DNA_outliner_types.h"
  85 #include "DNA_object_force.h"
  86 #include "DNA_packedFile_types.h"
  87 #include "DNA_particle_types.h"
  88 #include "DNA_property_types.h"
  89 #include "DNA_text_types.h"
  90 #include "DNA_view3d_types.h"
  91 #include "DNA_screen_types.h"
  92 #include "DNA_sensor_types.h"
  93 #include "DNA_sdna_types.h"
  94 #include "DNA_scene_types.h"
  95 #include "DNA_sequence_types.h"
  96 #include "DNA_sound_types.h"
  97 #include "DNA_space_types.h"
  98 #include "DNA_texture_types.h"
  99 #include "DNA_userdef_types.h"
 100 #include "DNA_vfont_types.h"
 101 #include "DNA_world_types.h"
 102 #include "DNA_windowmanager_types.h"
 103
 104 #include "MEM_guardedalloc.h"
 105 #include "BLI_blenlib.h"
 106 #include "BLI_arithb.h"
 107 #include "BLI_storage_types.h" // for relname flags
 108
 109 #include "BKE_animsys.h"
 110 #include "BKE_action.h"
 111 #include "BKE_armature.h"
 112 #include "BKE_brush.h"
 113 #include "BKE_cdderivedmesh.h"
 114 #include "BKE_cloth.h"
 115 #include "BKE_colortools.h"
 116 #include "BKE_constraint.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_key.h" //void set_four_ipo
 128 #include "BKE_lattice.h"
 129 #include "BKE_library.h" // for wich_libbase
 130 #include "BKE_main.h" // for Main
 131 #include "BKE_mesh.h" // for ME_ defines (patching)
 132 #include "BKE_modifier.h"
 133 #include "BKE_multires.h"
 134 #include "BKE_node.h" // for tree type defines
 135 #include "BKE_object.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_sculpt.h"
 145 #include "BKE_sequence.h"
 146 #include "BKE_texture.h" // for open_plugin_tex
 147 #include "BKE_utildefines.h" // SWITCH_INT DATA ENDB DNA1 O_BINARY GLOB USER TEST REND
 148 #include "BKE_idprop.h"
 149
 150 //XXX #include "BIF_butspace.h" // badlevel, for do_versions, patching event codes
 151 //XXX #include "BIF_filelist.h" // badlevel too, where to move this? - elubie
 152 //XXX #include "BIF_previewrender.h" // bedlelvel, for struct RenderInfo
 153 #include "BLO_readfile.h"
 154 #include "BLO_undofile.h"
 155 #include "BLO_readblenfile.h" // streaming read pipe, for BLO_readblenfile BLO_readblenfilememory
 156
 157 #include "readfile.h"
 158
 159 #include <errno.h>
 160
 161 /*
 162  Remark: still a weak point is the newadress() function, that doesnt solve reading from
 163  multiple files at the same time
 164
 165  (added remark: oh, i thought that was solved? will look at that... (ton)
 166
 167 READ
 168 - Existing Library (Main) push or free
 169 - allocate new Main
 170 - load file
 171 - read SDNA
 172 - for each LibBlock
 173         - read LibBlock
 174         - if a Library
 175                 - make a new Main
 176                 - attach ID's to it
 177         - else
 178                 - read associated 'direct data'
 179                 - link direct data (internal and to LibBlock)
 180 - read FileGlobal
 181 - read USER data, only when indicated (file is ~/.B.blend)
 182 - free file
 183 - per Library (per Main)
 184         - read file
 185         - read SDNA
 186         - find LibBlocks and attach IDs to Main
 187                 - if external LibBlock
 188                         - search all Main's
 189                                 - or it's already read,
 190                                 - or not read yet
 191                                 - or make new Main
 192         - per LibBlock
 193                 - read recursive
 194                 - read associated direct data
 195                 - link direct data (internal and to LibBlock)
 196         - free file
 197 - per Library with unread LibBlocks
 198         - read file
 199         - read SDNA
 200         - per LibBlock
 201                - read recursive
 202                - read associated direct data
 203                - link direct data (internal and to LibBlock)
 204         - free file
 205 - join all Mains
 206 - link all LibBlocks and indirect pointers to libblocks
 207 - initialize FileGlobal and copy pointers to Global
 208 */
 209
 210 /* also occurs in library.c */
 211 /* GS reads the memory pointed at in a specific ordering. There are,
 212  * however two definitions for it. I have jotted them down here, both,
 213  * but I think the first one is actually used. The thing is that
 214  * big-endian systems might read this the wrong way round. OTOH, we
 215  * constructed the IDs that are read out with this macro explicitly as
 216  * well. I expect we'll sort it out soon... */
 217
 218 /* from blendef: */
 219 #define GS(a)   (*((short *)(a)))
 220
 221 /* from misc_util: flip the bytes from x  */
 222 /*  #define GS(x) (((unsigned char *)(x))[0] << 8 | ((unsigned char *)(x))[1]) */
 223
 224 // only used here in readfile.c
 225 #define SWITCH_LONGINT(a) { \
 226     char s_i, *p_i; \
 227     p_i= (char *)&(a);  \
 228     s_i=p_i[0]; p_i[0]=p_i[7]; p_i[7]=s_i; \
 229     s_i=p_i[1]; p_i[1]=p_i[6]; p_i[6]=s_i; \
 230     s_i=p_i[2]; p_i[2]=p_i[5]; p_i[5]=s_i; \
 231     s_i=p_i[3]; p_i[3]=p_i[4]; p_i[4]=s_i; }
 232
 233 /***/
 234
 235 typedef struct OldNew {
 236         void *old, *newp;
 237         int nr;
 238 } OldNew;
 239
 240 typedef struct OldNewMap {
 241         OldNew *entries;
 242         int nentries, entriessize;
 243         int sorted;
 244         int lasthit;
 245 } OldNewMap;
 246
 247
 248 /* local prototypes */
 249 static void *read_struct(FileData *fd, BHead *bh, char *blockname);
 250
 251
 252 static OldNewMap *oldnewmap_new(void)
 253 {
 254         OldNewMap *onm= MEM_callocN(sizeof(*onm), "OldNewMap");
 255
 256         onm->entriessize= 1024;
 257         onm->entries= MEM_mallocN(sizeof(*onm->entries)*onm->entriessize, "OldNewMap.entries");
 258
 259         return onm;
 260 }
 261
 262 static int verg_oldnewmap(const void *v1, const void *v2)
 263 {
 264         const struct OldNew *x1=v1, *x2=v2;
 265
 266         if( x1->old > x2->old) return 1;
 267         else if( x1->old < x2->old) return -1;
 268         return 0;
 269 }
 270
 271
 272 static void oldnewmap_sort(FileData *fd)
 273 {
 274         qsort(fd->libmap->entries, fd->libmap->nentries, sizeof(OldNew), verg_oldnewmap);
 275         fd->libmap->sorted= 1;
 276 }
 277
 278 /* nr is zero for data, and ID code for libdata */
 279 static void oldnewmap_insert(OldNewMap *onm, void *oldaddr, void *newaddr, int nr)
 280 {
 281         OldNew *entry;
 282
 283         if(oldaddr==NULL || newaddr==NULL) return;
 284
 285         if (onm->nentries==onm->entriessize) {
 286                 int osize= onm->entriessize;
 287                 OldNew *oentries= onm->entries;
 288
 289                 onm->entriessize*= 2;
 290                 onm->entries= MEM_mallocN(sizeof(*onm->entries)*onm->entriessize, "OldNewMap.entries");
 291
 292                 memcpy(onm->entries, oentries, sizeof(*oentries)*osize);
 293                 MEM_freeN(oentries);
 294         }
 295
 296         entry= &onm->entries[onm->nentries++];
 297         entry->old= oldaddr;
 298         entry->newp= newaddr;
 299         entry->nr= nr;
 300 }
 301
 302 static void *oldnewmap_lookup_and_inc(OldNewMap *onm, void *addr)
 303 {
 304         int i;
 305
 306         if (onm->lasthit<onm->nentries-1) {
 307                 OldNew *entry= &onm->entries[++onm->lasthit];
 308
 309                 if (entry->old==addr) {
 310                         entry->nr++;
 311                         return entry->newp;
 312                 }
 313         }
 314
 315         for (i=0; i<onm->nentries; i++) {
 316                 OldNew *entry= &onm->entries[i];
 317
 318                 if (entry->old==addr) {
 319                         onm->lasthit= i;
 320
 321                         entry->nr++;
 322                         return entry->newp;
 323                 }
 324         }
 325
 326         return NULL;
 327 }
 328
 329 /* for libdata, nr has ID code, no increment */
 330 static void *oldnewmap_liblookup(OldNewMap *onm, void *addr, void *lib)
 331 {
 332         int i;
 333
 334         if(addr==NULL) return NULL;
 335
 336         /* lasthit works fine for non-libdata, linking there is done in same sequence as writing */
 337         if(onm->sorted) {
 338                 OldNew entry_s, *entry;
 339
 340                 entry_s.old= addr;
 341
 342                 entry= bsearch(&entry_s, onm->entries, onm->nentries, sizeof(OldNew), verg_oldnewmap);
 343                 if(entry) {
 344                         ID *id= entry->newp;
 345
 346                         if (id && (!lib || id->lib)) {
 347                                 return entry->newp;
 348                         }
 349                 }
 350         }
 351
 352         for (i=0; i<onm->nentries; i++) {
 353                 OldNew *entry= &onm->entries[i];
 354
 355                 if (entry->old==addr) {
 356                         ID *id= entry->newp;
 357
 358                         if (id && (!lib || id->lib)) {
 359                                 return entry->newp;
 360                         }
 361                 }
 362         }
 363
 364         return NULL;
 365 }
 366
 367 static void oldnewmap_free_unused(OldNewMap *onm)
 368 {
 369         int i;
 370
 371         for (i=0; i<onm->nentries; i++) {
 372                 OldNew *entry= &onm->entries[i];
 373                 if (entry->nr==0) {
 374                         MEM_freeN(entry->newp);
 375                         entry->newp= NULL;
 376                 }
 377         }
 378 }
 379
 380 static void oldnewmap_clear(OldNewMap *onm)
 381 {
 382         onm->nentries= 0;
 383         onm->lasthit= 0;
 384 }
 385
 386 static void oldnewmap_free(OldNewMap *onm)
 387 {
 388         MEM_freeN(onm->entries);
 389         MEM_freeN(onm);
 390 }
 391
 392 /***/
 393
 394 static void read_libraries(FileData *basefd, ListBase *mainlist);
 395
 396 /* ************ help functions ***************** */
 397
 398 static void add_main_to_main(Main *mainvar, Main *from)
 399 {
 400         ListBase *lbarray[MAX_LIBARRAY], *fromarray[MAX_LIBARRAY];
 401         int a;
 402
 403         a= set_listbasepointers(mainvar, lbarray);
 404         a= set_listbasepointers(from, fromarray);
 405         while(a--) {
 406                 addlisttolist(lbarray[a], fromarray[a]);
 407         }
 408 }
 409
 410 void blo_join_main(ListBase *mainlist)
 411 {
 412         Main *tojoin, *mainl;
 413
 414
 415         mainl= mainlist->first;
 416         while ((tojoin= mainl->next)) {
 417                 add_main_to_main(mainl, tojoin);
 418                 BLI_remlink(mainlist, tojoin);
 419                 MEM_freeN(tojoin);
 420         }
 421 }
 422
 423 static void split_libdata(ListBase *lb, Main *first)
 424 {
 425         ListBase *lbn;
 426         ID *id, *idnext;
 427         Main *mainvar;
 428
 429         id= lb->first;
 430         while(id) {
 431                 idnext= id->next;
 432                 if(id->lib) {
 433                         mainvar= first;
 434                         while(mainvar) {
 435                                 if(mainvar->curlib==id->lib) {
 436                                         lbn= wich_libbase(mainvar, GS(id->name));
 437                                         BLI_remlink(lb, id);
 438                                         BLI_addtail(lbn, id);
 439                                         break;
 440                                 }
 441                                 mainvar= mainvar->next;
 442                         }
 443                         if(mainvar==0) printf("error split_libdata\n");
 444                 }
 445                 id= idnext;
 446         }
 447 }
 448
 449 void blo_split_main(ListBase *mainlist, Main *main)
 450 {
 451         ListBase *lbarray[MAX_LIBARRAY];
 452         Library *lib;
 453         int i;
 454
 455         mainlist->first= mainlist->last= main;
 456         main->next= NULL;
 457
 458         if(main->library.first==NULL)
 459                 return;
 460
 461         for (lib= main->library.first; lib; lib= lib->id.next) {
 462                 Main *libmain= MEM_callocN(sizeof(Main), "libmain");
 463                 libmain->curlib= lib;
 464                 BLI_addtail(mainlist, libmain);
 465         }
 466
 467         i= set_listbasepointers(main, lbarray);
 468         while(i--)
 469                 split_libdata(lbarray[i], main->next);
 470 }
 471
 472 /* removes things like /blah/blah/../../blah/ etc, then writes in *name the full path */
 473 static void cleanup_path(const char *relabase, char *name)
 474 {
 475         char filename[FILE_MAXFILE];
 476
 477         BLI_splitdirstring(name, filename);
 478         BLI_cleanup_dir(relabase, name);
 479         strcat(name, filename);
 480 }
 481
 482 static void read_file_version(FileData *fd, Main *main)
 483 {
 484         BHead *bhead;
 485
 486         for (bhead= blo_firstbhead(fd); bhead; bhead= blo_nextbhead(fd, bhead)) {
 487                 if (bhead->code==GLOB) {
 488                         FileGlobal *fg= read_struct(fd, bhead, "Global");
 489                         if(fg) {
 490                                 main->subversionfile= fg->subversion;
 491                                 main->minversionfile= fg->minversion;
 492                                 main->minsubversionfile= fg->minsubversion;
 493                                 MEM_freeN(fg);
 494                         }
 495                         else if (bhead->code==ENDB)
 496                                 break;
 497                 }
 498         }
 499 }
 500
 501
 502 static Main *blo_find_main(FileData *fd, ListBase *mainlist, const char *name, const char *relabase)
 503 {
 504         Main *m;
 505         Library *lib;
 506         char name1[FILE_MAXDIR+FILE_MAXFILE];
 507
 508         strncpy(name1, name, sizeof(name1)-1);
 509         cleanup_path(relabase, name1);
 510 //      printf("blo_find_main: original in  %s\n", name);
 511 //      printf("blo_find_main: converted to %s\n", name1);
 512
 513         for (m= mainlist->first; m; m= m->next) {
 514                 char *libname= (m->curlib)?m->curlib->filename:m->name;
 515
 516                 if (BLI_streq(name1, libname)) {
 517                         if(G.f & G_DEBUG) printf("blo_find_main: found library %s\n", libname);
 518                         return m;
 519                 }
 520         }
 521
 522         m= MEM_callocN(sizeof(Main), "find_main");
 523         BLI_addtail(mainlist, m);
 524
 525         lib= alloc_libblock(&m->library, ID_LI, "lib");
 526         strncpy(lib->name, name, sizeof(lib->name)-1);
 527         BLI_strncpy(lib->filename, name1, sizeof(lib->filename));
 528
 529         m->curlib= lib;
 530
 531         read_file_version(fd, m);
 532
 533         if(G.f & G_DEBUG) printf("blo_find_main: added new lib %s\n", name);
 534         return m;
 535 }
 536
 537
 538 /* ************ FILE PARSING ****************** */
 539
 540 static void switch_endian_bh4(BHead4 *bhead)
 541 {
 542         /* the ID_.. codes */
 543         if((bhead->code & 0xFFFF)==0) bhead->code >>=16;
 544
 545         if (bhead->code != ENDB) {
 546                 SWITCH_INT(bhead->len);
 547                 SWITCH_INT(bhead->SDNAnr);
 548                 SWITCH_INT(bhead->nr);
 549         }
 550 }
 551
 552 static void switch_endian_bh8(BHead8 *bhead)
 553 {
 554         /* the ID_.. codes */
 555         if((bhead->code & 0xFFFF)==0) bhead->code >>=16;
 556
 557         if (bhead->code != ENDB) {
 558                 SWITCH_INT(bhead->len);
 559                 SWITCH_INT(bhead->SDNAnr);
 560                 SWITCH_INT(bhead->nr);
 561         }
 562 }
 563
 564 static void bh4_from_bh8(BHead *bhead, BHead8 *bhead8, int do_endian_swap)
 565 {
 566         BHead4 *bhead4 = (BHead4 *) bhead;
 567 #if defined(WIN32) && !defined(FREE_WINDOWS)
 568         __int64 old;
 569 #else
 570         long long old;
 571 #endif
 572
 573         bhead4->code= bhead8->code;
 574         bhead4->len= bhead8->len;
 575
 576         if (bhead4->code != ENDB) {
 577
 578                 // why is this here ??
 579                 if (do_endian_swap) {
 580                         SWITCH_LONGINT(bhead8->old);
 581                 }
 582
 583                 /* this patch is to avoid a long long being read from not-eight aligned positions
 584                    is necessary on any modern 64bit architecture) */
 585                 memcpy(&old, &bhead8->old, 8);
 586                 bhead4->old = (int) (old >> 3);
 587
 588                 bhead4->SDNAnr= bhead8->SDNAnr;
 589                 bhead4->nr= bhead8->nr;
 590         }
 591 }
 592
 593 static void bh8_from_bh4(BHead *bhead, BHead4 *bhead4)
 594 {
 595         BHead8 *bhead8 = (BHead8 *) bhead;
 596
 597         bhead8->code= bhead4->code;
 598         bhead8->len= bhead4->len;
 599
 600         if (bhead8->code != ENDB) {
 601                 bhead8->old= bhead4->old;
 602                 bhead8->SDNAnr= bhead4->SDNAnr;
 603                 bhead8->nr= bhead4->nr;
 604         }
 605 }
 606
 607 static BHeadN *get_bhead(FileData *fd)
 608 {
 609         BHead8 bhead8;
 610         BHead4 bhead4;
 611         BHead  bhead;
 612         BHeadN *new_bhead = 0;
 613         int readsize;
 614
 615         if (fd) {
 616                 if ( ! fd->eof) {
 617
 618                         // First read the bhead structure.
 619                         // Depending on the platform the file was written on this can
 620                         // be a big or little endian BHead4 or BHead8 structure.
 621
 622                         // As usual 'ENDB' (the last *partial* bhead of the file)
 623                         // needs some special handling. We don't want to EOF just yet.
 624
 625                         if (fd->flags & FD_FLAGS_FILE_POINTSIZE_IS_4) {
 626                                 bhead4.code = DATA;
 627                                 readsize = fd->read(fd, &bhead4, sizeof(bhead4));
 628
 629                                 if (readsize == sizeof(bhead4) || bhead4.code == ENDB) {
 630                                         if (fd->flags & FD_FLAGS_SWITCH_ENDIAN) {
 631                                                 switch_endian_bh4(&bhead4);
 632                                         }
 633
 634                                         if (fd->flags & FD_FLAGS_POINTSIZE_DIFFERS) {
 635                                                 bh8_from_bh4(&bhead, &bhead4);
 636                                         } else {
 637                                                 memcpy(&bhead, &bhead4, sizeof(bhead));
 638                                         }
 639                                 } else {
 640                                         fd->eof = 1;
 641                                         bhead.len= 0;
 642                                 }
 643                         } else {
 644                                 bhead8.code = DATA;
 645                                 readsize = fd->read(fd, &bhead8, sizeof(bhead8));
 646
 647                                 if (readsize == sizeof(bhead8) || bhead8.code == ENDB) {
 648                                         if (fd->flags & FD_FLAGS_SWITCH_ENDIAN) {
 649                                                 switch_endian_bh8(&bhead8);
 650                                         }
 651
 652                                         if (fd->flags & FD_FLAGS_POINTSIZE_DIFFERS) {
 653                                                 bh4_from_bh8(&bhead, &bhead8, (fd->flags & FD_FLAGS_SWITCH_ENDIAN));
 654                                         } else {
 655                                                 memcpy(&bhead, &bhead8, sizeof(bhead));
 656                                         }
 657                                 } else {
 658                                         fd->eof = 1;
 659                                         bhead.len= 0;
 660                                 }
 661                         }
 662
 663                         /* make sure people are not trying to pass bad blend files */
 664                         if (bhead.len < 0) fd->eof = 1;
 665
 666                         // bhead now contains the (converted) bhead structure. Now read
 667                         // the associated data and put everything in a BHeadN (creative naming !)
 668
 669                         if ( ! fd->eof) {
 670                                 new_bhead = MEM_mallocN(sizeof(BHeadN) + bhead.len, "new_bhead");
 671                                 if (new_bhead) {
 672                                         new_bhead->next = new_bhead->prev = 0;
 673                                         new_bhead->bhead = bhead;
 674
 675                                         readsize = fd->read(fd, new_bhead + 1, bhead.len);
 676
 677                                         if (readsize != bhead.len) {
 678                                                 fd->eof = 1;
 679                                                 MEM_freeN(new_bhead);
 680                                                 new_bhead = 0;
 681                                         }
 682                                 } else {
 683                                         fd->eof = 1;
 684                                 }
 685                         }
 686                 }
 687         }
 688
 689         // We've read a new block. Now add it to the list
 690         // of blocks.
 691
 692         if (new_bhead) {
 693                 BLI_addtail(&fd->listbase, new_bhead);
 694         }
 695
 696         return(new_bhead);
 697 }
 698
 699 BHead *blo_firstbhead(FileData *fd)
 700 {
 701         BHeadN *new_bhead;
 702         BHead *bhead = 0;
 703
 704         // Rewind the file
 705         // Read in a new block if necessary
 706
 707         new_bhead = fd->listbase.first;
 708         if (new_bhead == 0) {
 709                 new_bhead = get_bhead(fd);
 710         }
 711
 712         if (new_bhead) {
 713                 bhead = &new_bhead->bhead;
 714         }
 715
 716         return(bhead);
 717 }
 718
 719 BHead *blo_prevbhead(FileData *fd, BHead *thisblock)
 720 {
 721         BHeadN *bheadn= (BHeadN *) (((char *) thisblock) - GET_INT_FROM_POINTER( &((BHeadN*)0)->bhead) );
 722         BHeadN *prev= bheadn->prev;
 723
 724         return prev?&prev->bhead:NULL;
 725 }
 726
 727 BHead *blo_nextbhead(FileData *fd, BHead *thisblock)
 728 {
 729         BHeadN *new_bhead = NULL;
 730         BHead *bhead = NULL;
 731
 732         if (thisblock) {
 733                 // bhead is actually a sub part of BHeadN
 734                 // We calculate the BHeadN pointer from the BHead pointer below
 735                 new_bhead = (BHeadN *) (((char *) thisblock) - GET_INT_FROM_POINTER( &((BHeadN*)0)->bhead) );
 736
 737                 // get the next BHeadN. If it doesn't exist we read in the next one
 738                 new_bhead = new_bhead->next;
 739                 if (new_bhead == 0) {
 740                         new_bhead = get_bhead(fd);
 741                 }
 742         }
 743
 744         if (new_bhead) {
 745                 // here we do the reverse:
 746                 // go from the BHeadN pointer to the BHead pointer
 747                 bhead = &new_bhead->bhead;
 748         }
 749
 750         return(bhead);
 751 }
 752
 753 static void decode_blender_header(FileData *fd)
 754 {
 755         char header[SIZEOFBLENDERHEADER], num[4];
 756         int readsize;
 757
 758         // read in the header data
 759         readsize = fd->read(fd, header, sizeof(header));
 760
 761         if (readsize == sizeof(header)) {
 762                 if(strncmp(header, "BLENDER", 7) == 0) {
 763                         int remove_this_endian_test= 1;
 764
 765                         fd->flags |= FD_FLAGS_FILE_OK;
 766
 767                         // what size are pointers in the file ?
 768                         if(header[7]=='_') {
 769                                 fd->flags |= FD_FLAGS_FILE_POINTSIZE_IS_4;
 770                                 if (sizeof(void *) != 4) {
 771                                         fd->flags |= FD_FLAGS_POINTSIZE_DIFFERS;
 772                                 }
 773                         } else {
 774                                 if (sizeof(void *) != 8) {
 775                                         fd->flags |= FD_FLAGS_POINTSIZE_DIFFERS;
 776                                 }
 777                         }
 778
 779                         // is the file saved in a different endian
 780                         // than we need ?
 781                         if (((((char*)&remove_this_endian_test)[0]==1)?L_ENDIAN:B_ENDIAN) != ((header[8]=='v')?L_ENDIAN:B_ENDIAN)) {
 782                                 fd->flags |= FD_FLAGS_SWITCH_ENDIAN;
 783                         }
 784
 785                         // get the version number
 786
 787                         memcpy(num, header+9, 3);
 788                         num[3] = 0;
 789                         fd->fileversion = atoi(num);
 790                 }
 791         }
 792 }
 793
 794 static int read_file_dna(FileData *fd)
 795 {
 796         BHead *bhead;
 797
 798         for (bhead= blo_firstbhead(fd); bhead; bhead= blo_nextbhead(fd, bhead)) {
 799                 if (bhead->code==DNA1) {
 800                         int do_endian_swap= (fd->flags&FD_FLAGS_SWITCH_ENDIAN)?1:0;
 801
 802                         fd->filesdna= DNA_sdna_from_data(&bhead[1], bhead->len, do_endian_swap);
 803                         if (fd->filesdna) {
 804
 805                                 fd->compflags= DNA_struct_get_compareflags(fd->filesdna, fd->memsdna);
 806                                 /* used to retrieve ID names from (bhead+1) */
 807                                 fd->id_name_offs= DNA_elem_offset(fd->filesdna, "ID", "char", "name[]");
 808                         }
 809
 810                         return 1;
 811                 } else if (bhead->code==ENDB)
 812                         break;
 813         }
 814
 815         return 0;
 816 }
 817
 818 static int fd_read_from_file(FileData *filedata, void *buffer, unsigned int size)
 819 {
 820         int readsize = read(filedata->filedes, buffer, size);
 821
 822         if (readsize < 0) {
 823                 readsize = EOF;
 824         } else {
 825                 filedata->seek += readsize;
 826         }
 827
 828         return (readsize);
 829 }
 830
 831 static int fd_read_gzip_from_file(FileData *filedata, void *buffer, unsigned int size)
 832 {
 833         int readsize = gzread(filedata->gzfiledes, buffer, size);
 834
 835         if (readsize < 0) {
 836                 readsize = EOF;
 837         } else {
 838                 filedata->seek += readsize;
 839         }
 840
 841         return (readsize);
 842 }
 843
 844 static int fd_read_from_memory(FileData *filedata, void *buffer, unsigned int size)
 845 {
 846                 // don't read more bytes then there are available in the buffer
 847         int readsize = MIN2(size, filedata->buffersize - filedata->seek);
 848
 849         memcpy(buffer, filedata->buffer + filedata->seek, readsize);
 850         filedata->seek += readsize;
 851
 852         return (readsize);
 853 }
 854
 855 static int fd_read_from_memfile(FileData *filedata, void *buffer, unsigned int size)
 856 {
 857         static unsigned int seek= 1<<30;        /* the current position */
 858         static unsigned int offset= 0;          /* size of previous chunks */
 859         static MemFileChunk *chunk=NULL;
 860         unsigned int chunkoffset, readsize, totread;
 861
 862         if(size==0) return 0;
 863
 864         if(seek != (unsigned int)filedata->seek) {
 865                 chunk= filedata->memfile->chunks.first;
 866                 seek= 0;
 867
 868                 while(chunk) {
 869                         if(seek + chunk->size > (unsigned) filedata->seek) break;
 870                         seek+= chunk->size;
 871                         chunk= chunk->next;
 872                 }
 873                 offset= seek;
 874                 seek= filedata->seek;
 875         }
 876
 877         if(chunk) {
 878                 totread= 0;
 879
 880                 do {
 881                         /* first check if it's on the end if current chunk */
 882                         if(seek-offset == chunk->size) {
 883                                 offset+= chunk->size;
 884                                 chunk= chunk->next;
 885                         }
 886
 887                         /* debug, should never happen */
 888                         if(chunk==NULL) {
 889                                 printf("illegal read, chunk zero\n");
 890                                 return 0;
 891                         }
 892
 893                         chunkoffset= seek-offset;
 894                         readsize= size-totread;
 895
 896                         /* data can be spread over multiple chunks, so clamp size
 897                          * to within this chunk, and then it will read further in
 898                          * the next chunk */
 899                         if(chunkoffset+readsize > chunk->size)
 900                                 readsize= chunk->size-chunkoffset;
 901
 902                         memcpy((char*)buffer+totread, chunk->buf+chunkoffset, readsize);
 903                         totread += readsize;
 904                         filedata->seek += readsize;
 905                         seek += readsize;
 906                 } while(totread < size);
 907
 908                 return totread;
 909         }
 910
 911         return 0;
 912 }
 913
 914 static FileData *filedata_new(void)
 915 {
 916         FileData *fd = MEM_callocN(sizeof(FileData), "FileData");
 917
 918         fd->filedes = -1;
 919         fd->gzfiledes = NULL;
 920
 921                 /* XXX, this doesn't need to be done all the time,
 922                  * but it keeps us reentrant,  remove once we have
 923                  * a lib that provides a nice lock. - zr
 924                  */
 925         fd->memsdna = DNA_sdna_from_data(DNAstr,  DNAlen,  0);
 926
 927         fd->datamap = oldnewmap_new();
 928         fd->globmap = oldnewmap_new();
 929         fd->libmap = oldnewmap_new();
 930
 931         return fd;
 932 }
 933
 934 static FileData *blo_decode_and_check(FileData *fd, ReportList *reports)
 935 {
 936         decode_blender_header(fd);
 937
 938         if (fd->flags & FD_FLAGS_FILE_OK) {
 939                 if (!read_file_dna(fd)) {
 940                         BKE_report(reports, RPT_ERROR, "File incomplete");
 941                         blo_freefiledata(fd);
 942                         fd= NULL;
 943                 }
 944         }
 945         else {
 946                 BKE_report(reports, RPT_ERROR, "File is not a Blender file");
 947                 blo_freefiledata(fd);
 948                 fd= NULL;
 949         }
 950
 951         return fd;
 952 }
 953
 954 /* cannot be called with relative paths anymore! */
 955 /* on each new library added, it now checks for the current FileData and expands relativeness */
 956 FileData *blo_openblenderfile(char *name, ReportList *reports)
 957 {
 958         gzFile gzfile;
 959
 960         gzfile= gzopen(name, "rb");
 961
 962         if (NULL == gzfile) {
 963                 BKE_report(reports, RPT_ERROR, "Unable to open");
 964                 return NULL;
 965         } else {
 966                 FileData *fd = filedata_new();
 967                 fd->gzfiledes = gzfile;
 968                 fd->read = fd_read_gzip_from_file;
 969
 970                 /* needed for library_append and read_libraries */
 971                 BLI_strncpy(fd->filename, name, sizeof(fd->filename));
 972
 973                 return blo_decode_and_check(fd, reports);
 974         }
 975 }
 976
 977 FileData *blo_openblendermemory(void *mem, int memsize, ReportList *reports)
 978 {
 979         if (!mem || memsize<SIZEOFBLENDERHEADER) {
 980                 BKE_report(reports, RPT_ERROR, (mem)? "Unable to read": "Unable to open");
 981                 return NULL;
 982         } else {
 983                 FileData *fd= filedata_new();
 984                 fd->buffer= mem;
 985                 fd->buffersize= memsize;
 986                 fd->read= fd_read_from_memory;
 987                 fd->flags|= FD_FLAGS_NOT_MY_BUFFER;
 988
 989                 return blo_decode_and_check(fd, reports);
 990         }
 991 }
 992
 993 FileData *blo_openblendermemfile(MemFile *memfile, ReportList *reports)
 994 {
 995         if (!memfile) {
 996                 BKE_report(reports, RPT_ERROR, "Unable to open");
 997                 return NULL;
 998         } else {
 999                 FileData *fd= filedata_new();
1000                 fd->memfile= memfile;
1001
1002                 fd->read= fd_read_from_memfile;
1003                 fd->flags|= FD_FLAGS_NOT_MY_BUFFER;
1004
1005                 return blo_decode_and_check(fd, reports);
1006         }
1007 }
1008
1009
1010 void blo_freefiledata(FileData *fd)
1011 {
1012         if (fd) {
1013
1014                 if (fd->filedes != -1) {
1015                         close(fd->filedes);
1016                 }
1017
1018                 if (fd->gzfiledes != NULL)
1019                 {
1020                         gzclose(fd->gzfiledes);
1021                 }
1022
1023                 if (fd->buffer && !(fd->flags & FD_FLAGS_NOT_MY_BUFFER)) {
1024                         MEM_freeN(fd->buffer);
1025                         fd->buffer = 0;
1026                 }
1027
1028                 // Free all BHeadN data blocks
1029                 BLI_freelistN(&fd->listbase);
1030
1031                 if (fd->memsdna)
1032                         DNA_sdna_free(fd->memsdna);
1033                 if (fd->filesdna)
1034                         DNA_sdna_free(fd->filesdna);
1035                 if (fd->compflags)
1036                         MEM_freeN(fd->compflags);
1037
1038                 if (fd->datamap)
1039                         oldnewmap_free(fd->datamap);
1040                 if (fd->globmap)
1041                         oldnewmap_free(fd->globmap);
1042                 if (fd->imamap)
1043                         oldnewmap_free(fd->imamap);
1044                 if (fd->libmap && !(fd->flags & FD_FLAGS_NOT_MY_LIBMAP))
1045                         oldnewmap_free(fd->libmap);
1046                 if (fd->bheadmap)
1047                         MEM_freeN(fd->bheadmap);
1048
1049                 MEM_freeN(fd);
1050         }
1051 }
1052
1053 /* ************ DIV ****************** */
1054
1055 int BLO_has_bfile_extension(char *str)
1056 {
1057         return (BLI_testextensie(str, ".ble") || BLI_testextensie(str, ".blend")||BLI_testextensie(str, ".blend.gz"));
1058 }
1059
1060 /* ************** OLD POINTERS ******************* */
1061
1062 static void *newdataadr(FileData *fd, void *adr)                /* only direct databocks */
1063 {
1064         return oldnewmap_lookup_and_inc(fd->datamap, adr);
1065 }
1066
1067 static void *newglobadr(FileData *fd, void *adr)                /* direct datablocks with global linking */
1068 {
1069         return oldnewmap_lookup_and_inc(fd->globmap, adr);
1070 }
1071
1072 static void *newimaadr(FileData *fd, void *adr)         /* used to restore image data after undo */
1073 {
1074         if(fd->imamap && adr)
1075                 return oldnewmap_lookup_and_inc(fd->imamap, adr);
1076         return NULL;
1077 }
1078
1079
1080 static void *newlibadr(FileData *fd, void *lib, void *adr)              /* only lib data */
1081 {
1082         return oldnewmap_liblookup(fd->libmap, adr, lib);
1083 }
1084
1085 static void *newlibadr_us(FileData *fd, void *lib, void *adr)   /* increases user number */
1086 {
1087         ID *id= newlibadr(fd, lib, adr);
1088
1089         if(id)
1090                 id->us++;
1091
1092         return id;
1093 }
1094
1095 static void change_idid_adr_fd(FileData *fd, void *old, void *new)
1096 {
1097         int i;
1098
1099         for (i=0; i<fd->libmap->nentries; i++) {
1100                 OldNew *entry= &fd->libmap->entries[i];
1101
1102                 if (old==entry->newp && entry->nr==ID_ID) {
1103                         entry->newp= new;
1104                         if(new) entry->nr= GS( ((ID *)new)->name );
1105                         break;
1106                 }
1107         }
1108 }
1109
1110 static void change_idid_adr(ListBase *mainlist, FileData *basefd, void *old, void *new)
1111 {
1112         Main *mainptr;
1113
1114         for(mainptr= mainlist->first; mainptr; mainptr= mainptr->next) {
1115                 FileData *fd;
1116
1117                 if(mainptr->curlib) fd= mainptr->curlib->filedata;
1118                 else fd= basefd;
1119
1120                 if(fd) {
1121                         change_idid_adr_fd(fd, old, new);
1122                 }
1123         }
1124 }
1125
1126 /* lib linked proxy objects point to our local data, we need
1127  * to clear that pointer before reading the undo memfile since
1128  * the object might be removed, it is set again in reading
1129  * if the local object still exists */
1130 void blo_clear_proxy_pointers_from_lib(FileData *fd, Main *oldmain)
1131 {
1132         Object *ob= oldmain->object.first;
1133
1134         for(;ob; ob= ob->id.next)
1135                 if(ob->id.lib)
1136                         ob->proxy_from= NULL;
1137 }
1138
1139 void blo_make_image_pointer_map(FileData *fd, Main *oldmain)
1140 {
1141         Image *ima= oldmain->image.first;
1142         Scene *sce= oldmain->scene.first;
1143
1144         fd->imamap= oldnewmap_new();
1145
1146         for(;ima; ima= ima->id.next) {
1147                 Link *ibuf= ima->ibufs.first;
1148                 for(; ibuf; ibuf= ibuf->next)
1149                         oldnewmap_insert(fd->imamap, ibuf, ibuf, 0);
1150                 if(ima->gputexture)
1151                         oldnewmap_insert(fd->imamap, ima->gputexture, ima->gputexture, 0);
1152         }
1153         for(; sce; sce= sce->id.next) {
1154                 if(sce->nodetree) {
1155                         bNode *node;
1156                         for(node= sce->nodetree->nodes.first; node; node= node->next)
1157                                 oldnewmap_insert(fd->imamap, node->preview, node->preview, 0);
1158                 }
1159         }
1160 }
1161
1162 /* set old main image ibufs to zero if it has been restored */
1163 /* this works because freeing old main only happens after this call */
1164 void blo_end_image_pointer_map(FileData *fd, Main *oldmain)
1165 {
1166         OldNew *entry= fd->imamap->entries;
1167         Image *ima= oldmain->image.first;
1168         Scene *sce= oldmain->scene.first;
1169         int i;
1170
1171         /* used entries were restored, so we put them to zero */
1172         for (i=0; i<fd->imamap->nentries; i++, entry++) {
1173                 if (entry->nr>0)
1174                         entry->newp= NULL;
1175         }
1176
1177         for(;ima; ima= ima->id.next) {
1178                 Link *ibuf, *next;
1179
1180                 /* this mirrors direct_link_image */
1181                 for(ibuf= ima->ibufs.first; ibuf; ibuf= next) {
1182                         next= ibuf->next;
1183                         if(NULL==newimaadr(fd, ibuf)) { /* so was restored */
1184                                 BLI_remlink(&ima->ibufs, ibuf);
1185                                 ima->bindcode= 0;
1186                                 ima->gputexture= NULL;
1187                         }
1188                 }
1189
1190                 ima->gputexture= newimaadr(fd, ima->gputexture);
1191         }
1192         for(; sce; sce= sce->id.next) {
1193                 if(sce->nodetree) {
1194                         bNode *node;
1195                         for(node= sce->nodetree->nodes.first; node; node= node->next)
1196                                 node->preview= newimaadr(fd, node->preview);
1197                 }
1198         }
1199 }
1200
1201 /* undo file support: add all library pointers in lookup */
1202 void blo_add_library_pointer_map(ListBase *mainlist, FileData *fd)
1203 {
1204         Main *ptr= mainlist->first;
1205         ListBase *lbarray[MAX_LIBARRAY];
1206
1207         for(ptr= ptr->next; ptr; ptr= ptr->next) {
1208                 int i= set_listbasepointers(ptr, lbarray);
1209                 while(i--) {
1210                         ID *id;
1211                         for(id= lbarray[i]->first; id; id= id->next)
1212                                 oldnewmap_insert(fd->libmap, id, id, GS(id->name));
1213                 }
1214         }
1215 }
1216
1217
1218 /* ********** END OLD POINTERS ****************** */
1219 /* ********** READ FILE ****************** */
1220
1221 static void switch_endian_structs(struct SDNA *filesdna, BHead *bhead)
1222 {
1223         int blocksize, nblocks;
1224         char *data;
1225
1226         data= (char *)(bhead+1);
1227         blocksize= filesdna->typelens[ filesdna->structs[bhead->SDNAnr][0] ];
1228
1229         nblocks= bhead->nr;
1230         while(nblocks--) {
1231                 DNA_struct_switch_endian(filesdna, bhead->SDNAnr, data);
1232
1233                 data+= blocksize;
1234         }
1235 }
1236
1237 static void *read_struct(FileData *fd, BHead *bh, char *blockname)
1238 {
1239         void *temp= NULL;
1240
1241         if (bh->len) {
1242                 /* switch is based on file dna */
1243                 if (bh->SDNAnr && (fd->flags & FD_FLAGS_SWITCH_ENDIAN))
1244                         switch_endian_structs(fd->filesdna, bh);
1245
1246                 if (fd->compflags[bh->SDNAnr]) {        /* flag==0: doesn't exist anymore */
1247                         if(fd->compflags[bh->SDNAnr]==2) {
1248                                 temp= DNA_struct_reconstruct(fd->memsdna, fd->filesdna, fd->compflags, bh->SDNAnr, bh->nr, (bh+1));
1249                         } else {
1250                                 temp= MEM_mallocN(bh->len, blockname);
1251                                 memcpy(temp, (bh+1), bh->len);
1252                         }
1253                 }
1254         }
1255
1256         return temp;
1257 }
1258
1259 static void link_list(FileData *fd, ListBase *lb)               /* only direct data */
1260 {
1261         Link *ln, *prev;
1262
1263         if(lb->first==NULL) return;
1264
1265         lb->first= newdataadr(fd, lb->first);
1266         ln= lb->first;
1267         prev= NULL;
1268         while(ln) {
1269                 ln->next= newdataadr(fd, ln->next);
1270                 ln->prev= prev;
1271                 prev= ln;
1272                 ln= ln->next;
1273         }
1274         lb->last= prev;
1275 }
1276
1277 static void link_glob_list(FileData *fd, ListBase *lb)          /* for glob data */
1278 {
1279         Link *ln, *prev;
1280         void *poin;
1281
1282         if(lb->first==0) return;
1283         poin= newdataadr(fd, lb->first);
1284         if(lb->first) {
1285                 oldnewmap_insert(fd->globmap, lb->first, poin, 0);
1286         }
1287         lb->first= poin;
1288
1289         ln= lb->first;
1290         prev= 0;
1291         while(ln) {
1292                 poin= newdataadr(fd, ln->next);
1293                 if(ln->next) {
1294                         oldnewmap_insert(fd->globmap, ln->next, poin, 0);
1295                 }
1296                 ln->next= poin;
1297                 ln->prev= prev;
1298                 prev= ln;
1299                 ln= ln->next;
1300         }
1301         lb->last= prev;
1302 }
1303
1304 static void test_pointer_array(FileData *fd, void **mat)
1305 {
1306 #if defined(WIN32) && !defined(FREE_WINDOWS)
1307         __int64 *lpoin, *lmat;
1308 #else
1309         long long *lpoin, *lmat;
1310 #endif
1311         int len, *ipoin, *imat;
1312
1313                 /* manually convert the pointer array in
1314                  * the old dna format to a pointer array in
1315                  * the new dna format.
1316                  */
1317         if(*mat) {
1318                 len= MEM_allocN_len(*mat)/fd->filesdna->pointerlen;
1319
1320                 if(fd->filesdna->pointerlen==8 && fd->memsdna->pointerlen==4) {
1321                         ipoin=imat= MEM_mallocN( len*4, "newmatar");
1322                         lpoin= *mat;
1323
1324                         while(len-- > 0) {
1325                                 if((fd->flags & FD_FLAGS_SWITCH_ENDIAN))
1326                                         SWITCH_LONGINT(*lpoin);
1327                                 *ipoin= (int) ((*lpoin) >> 3);
1328                                 ipoin++;
1329                                 lpoin++;
1330                         }
1331                         MEM_freeN(*mat);
1332                         *mat= imat;
1333                 }
1334
1335                 if(fd->filesdna->pointerlen==4 && fd->memsdna->pointerlen==8) {
1336                         lpoin=lmat= MEM_mallocN( len*8, "newmatar");
1337                         ipoin= *mat;
1338
1339                         while(len-- > 0) {
1340                                 *lpoin= *ipoin;
1341                                 ipoin++;
1342                                 lpoin++;
1343                         }
1344                         MEM_freeN(*mat);
1345                         *mat= lmat;
1346                 }
1347         }
1348 }
1349
1350 /* ************ READ ID Properties *************** */
1351
1352 void IDP_DirectLinkProperty(IDProperty *prop, int switch_endian, FileData *fd);
1353 void IDP_LibLinkProperty(IDProperty *prop, int switch_endian, FileData *fd);
1354
1355 static void IDP_DirectLinkIDPArray(IDProperty *prop, int switch_endian, FileData *fd)
1356 {
1357         IDProperty **array;
1358         int i;
1359
1360         /*since we didn't save the extra buffer, set totallen to len.*/
1361         prop->totallen = prop->len;
1362         prop->data.pointer = newdataadr(fd, prop->data.pointer);
1363
1364         if (switch_endian) {
1365                 test_pointer_array(fd, prop->data.pointer);
1366                 array= (IDProperty**) prop->data.pointer;
1367
1368                 for(i=0; i<prop->len; i++)
1369                         IDP_DirectLinkProperty(array[i], switch_endian, fd);
1370         }
1371 }
1372
1373 static void IDP_DirectLinkArray(IDProperty *prop, int switch_endian, FileData *fd)
1374 {
1375         IDProperty **array;
1376         int i;
1377
1378         /*since we didn't save the extra buffer, set totallen to len.*/
1379         prop->totallen = prop->len;
1380         prop->data.pointer = newdataadr(fd, prop->data.pointer);
1381
1382         if (switch_endian) {
1383                 if(prop->subtype == IDP_GROUP) {
1384                         test_pointer_array(fd, prop->data.pointer);
1385                         array= prop->data.pointer;
1386
1387                         for(i=0; i<prop->len; i++)
1388                                 IDP_DirectLinkProperty(array[i], switch_endian, fd);
1389                 }
1390                 else if(prop->subtype == IDP_DOUBLE) {
1391                         for (i=0; i<prop->len; i++) {
1392                                 SWITCH_LONGINT(((double*)prop->data.pointer)[i]);
1393                         }
1394                 } else {
1395                         for (i=0; i<prop->len; i++) {
1396                                 SWITCH_INT(((int*)prop->data.pointer)[i]);
1397                         }
1398                 }
1399         }
1400 }
1401
1402 static void IDP_DirectLinkString(IDProperty *prop, int switch_endian, FileData *fd)
1403 {
1404         /*since we didn't save the extra string buffer, set totallen to len.*/
1405         prop->totallen = prop->len;
1406         prop->data.pointer = newdataadr(fd, prop->data.pointer);
1407 }
1408
1409 static void IDP_DirectLinkGroup(IDProperty *prop, int switch_endian, FileData *fd)
1410 {
1411         ListBase *lb = &prop->data.group;
1412         IDProperty *loop;
1413
1414         link_list(fd, lb);
1415
1416         /*Link child id properties now*/
1417         for (loop=prop->data.group.first; loop; loop=loop->next) {
1418                 IDP_DirectLinkProperty(loop, switch_endian, fd);
1419         }
1420 }
1421
1422 void IDP_DirectLinkProperty(IDProperty *prop, int switch_endian, FileData *fd)
1423 {
1424         switch (prop->type) {
1425                 case IDP_GROUP:
1426                         IDP_DirectLinkGroup(prop, switch_endian, fd);
1427                         break;
1428                 case IDP_STRING:
1429                         IDP_DirectLinkString(prop, switch_endian, fd);
1430                         break;
1431                 case IDP_ARRAY:
1432                         IDP_DirectLinkArray(prop, switch_endian, fd);
1433                         break;
1434                 case IDP_IDPARRAY:
1435                         IDP_DirectLinkIDPArray(prop, switch_endian, fd);
1436                         break;
1437                 case IDP_DOUBLE:
1438                         /*erg, stupid doubles.  since I'm storing them
1439                          in the same field as int val; val2 in the
1440                          IDPropertyData struct, they have to deal with
1441                          endianness specifically
1442
1443                          in theory, val and val2 would've already been swapped
1444                          if switch_endian is true, so we have to first unswap
1445                          them then reswap them as a single 64-bit entity.
1446                          */
1447
1448                         if (switch_endian) {
1449                                 SWITCH_INT(prop->data.val);
1450                                 SWITCH_INT(prop->data.val2);
1451                                 SWITCH_LONGINT(prop->data.val);
1452                         }
1453
1454                         break;
1455         }
1456 }
1457
1458 /*stub function*/
1459 void IDP_LibLinkProperty(IDProperty *prop, int switch_endian, FileData *fd)
1460 {
1461 }
1462
1463 /* ************ READ CurveMapping *************** */
1464
1465 /* cuma itself has been read! */
1466 static void direct_link_curvemapping(FileData *fd, CurveMapping *cumap)
1467 {
1468         int a;
1469
1470         /* flag seems to be able to hang? Maybe old files... not bad to clear anyway */
1471         cumap->flag &= ~CUMA_PREMULLED;
1472
1473         for(a=0; a<CM_TOT; a++) {
1474                 cumap->cm[a].curve= newdataadr(fd, cumap->cm[a].curve);
1475                 cumap->cm[a].table= NULL;
1476         }
1477 }
1478
1479 /* ************ READ Brush *************** */
1480 /* library brush linking after fileread */
1481 static void lib_link_brush(FileData *fd, Main *main)
1482 {
1483         Brush *brush;
1484         MTex *mtex;
1485         int a;
1486
1487         /* only link ID pointers */
1488         for(brush= main->brush.first; brush; brush= brush->id.next) {
1489                 if(brush->id.flag & LIB_NEEDLINK) {
1490                         brush->id.flag -= LIB_NEEDLINK;
1491
1492                         for(a=0; a<MAX_MTEX; a++) {
1493                                 mtex= brush->mtex[a];
1494                                 if(mtex)
1495                                         mtex->tex= newlibadr_us(fd, brush->id.lib, mtex->tex);
1496                         }
1497
1498                         brush->clone.image= newlibadr_us(fd, brush->id.lib, brush->clone.image);
1499                 }
1500         }
1501 }
1502
1503 static void direct_link_brush(FileData *fd, Brush *brush)
1504 {
1505         /* brush itself has been read */
1506         int a;
1507
1508         for(a=0; a<MAX_MTEX; a++)
1509                 brush->mtex[a]= newdataadr(fd, brush->mtex[a]);
1510
1511         /* fallof curve */
1512         brush->curve= newdataadr(fd, brush->curve);
1513         if(brush->curve)
1514                 direct_link_curvemapping(fd, brush->curve);
1515         else
1516                 brush_curve_preset(brush, BRUSH_PRESET_SHARP);
1517 }
1518
1519 static void direct_link_script(FileData *fd, Script *script)
1520 {
1521         script->id.us = 1;
1522         SCRIPT_SET_NULL(script)
1523 }
1524
1525
1526 /* ************ READ PACKEDFILE *************** */
1527
1528 static PackedFile *direct_link_packedfile(FileData *fd, PackedFile *oldpf)
1529 {
1530         PackedFile *pf= newdataadr(fd, oldpf);
1531
1532         if (pf) {
1533                 pf->data= newdataadr(fd, pf->data);
1534         }
1535
1536         return pf;
1537 }
1538
1539 /* ************ READ IMAGE PREVIEW *************** */
1540
1541 static PreviewImage *direct_link_preview_image(FileData *fd, PreviewImage *old_prv)
1542 {
1543         PreviewImage *prv= newdataadr(fd, old_prv);
1544
1545         if (prv) {
1546                 int i;
1547                 for (i=0; i < PREVIEW_MIPMAPS; ++i) {
1548                         if (prv->rect[i]) {
1549                                 prv->rect[i] = newdataadr(fd, prv->rect[i]);
1550                         }
1551                 }
1552         }
1553
1554         return prv;
1555 }
1556
1557 /* ************ READ SCRIPTLINK *************** */
1558
1559 static void lib_link_scriptlink(FileData *fd, ID *id, ScriptLink *slink)
1560 {
1561         int i;
1562
1563         for(i=0; i<slink->totscript; i++) {
1564                 slink->scripts[i]= newlibadr(fd, id->lib, slink->scripts[i]);
1565         }
1566 }
1567
1568 static void direct_link_scriptlink(FileData *fd, ScriptLink *slink)
1569 {
1570         slink->scripts= newdataadr(fd, slink->scripts);
1571         test_pointer_array(fd, (void **)&slink->scripts);
1572
1573         slink->flag= newdataadr(fd, slink->flag);
1574
1575         if(fd->flags & FD_FLAGS_SWITCH_ENDIAN) {
1576                 int a;
1577
1578                 for(a=0; a<slink->totscript; a++) {
1579                         SWITCH_SHORT(slink->flag[a]);
1580                 }
1581         }
1582 }
1583
1584 /* ************ READ ANIMATION STUFF ***************** */
1585
1586 /* Legacy Data Support (for Version Patching) ----------------------------- */
1587
1588 // XXX depreceated - old animation system
1589 static void lib_link_ipo(FileData *fd, Main *main)
1590 {
1591         Ipo *ipo;
1592
1593         ipo= main->ipo.first;
1594         while(ipo) {
1595                 if(ipo->id.flag & LIB_NEEDLINK) {
1596                         IpoCurve *icu;
1597                         for(icu= ipo->curve.first; icu; icu= icu->next) {
1598                                 if(icu->driver)
1599                                         icu->driver->ob= newlibadr(fd, ipo->id.lib, icu->driver->ob);
1600                         }
1601                         ipo->id.flag -= LIB_NEEDLINK;
1602                 }
1603                 ipo= ipo->id.next;
1604         }
1605 }
1606
1607 // XXX depreceated - old animation system
1608 static void direct_link_ipo(FileData *fd, Ipo *ipo)
1609 {
1610         IpoCurve *icu;
1611
1612         link_list(fd, &(ipo->curve));
1613         icu= ipo->curve.first;
1614         while(icu) {
1615                 icu->bezt= newdataadr(fd, icu->bezt);
1616                 icu->bp= newdataadr(fd, icu->bp);
1617                 icu->driver= newdataadr(fd, icu->driver);
1618                 icu= icu->next;
1619         }
1620 }
1621
1622 // XXX depreceated - old animation system
1623 static void lib_link_nlastrips(FileData *fd, ID *id, ListBase *striplist)
1624 {
1625         bActionStrip *strip;
1626         bActionModifier *amod;
1627
1628         for (strip=striplist->first; strip; strip=strip->next){
1629                 strip->object = newlibadr(fd, id->lib, strip->object);
1630                 strip->act = newlibadr_us(fd, id->lib, strip->act);
1631                 strip->ipo = newlibadr(fd, id->lib, strip->ipo);
1632                 for(amod= strip->modifiers.first; amod; amod= amod->next)
1633                         amod->ob= newlibadr(fd, id->lib, amod->ob);
1634         }
1635 }
1636
1637 // XXX depreceated - old animation system
1638 static void direct_link_nlastrips(FileData *fd, ListBase *strips)
1639 {
1640         bActionStrip *strip;
1641
1642         link_list(fd, strips);
1643
1644         for(strip= strips->first; strip; strip= strip->next)
1645                 link_list(fd, &strip->modifiers);
1646 }
1647
1648 // XXX depreceated - old animation system
1649 static void lib_link_constraint_channels(FileData *fd, ID *id, ListBase *chanbase)
1650 {
1651         bConstraintChannel *chan;
1652
1653         for (chan=chanbase->first; chan; chan=chan->next){
1654                 chan->ipo = newlibadr_us(fd, id->lib, chan->ipo);
1655         }
1656 }
1657
1658 /* Data Linking ----------------------------- */
1659
1660 static void lib_link_fcurves(FileData *fd, ID *id, ListBase *list)
1661 {
1662         FCurve *fcu;
1663         FModifier *fcm;
1664
1665         /* relink ID-block references... */
1666         for (fcu= list->first; fcu; fcu= fcu->next) {
1667                 /* driver data */
1668                 if (fcu->driver) {
1669                         ChannelDriver *driver= fcu->driver;
1670                         driver->id= newlibadr(fd, id->lib, driver->id);
1671                         driver->id2= newlibadr(fd, id->lib, driver->id2);
1672                 }
1673
1674                 /* modifiers */
1675                 for (fcm= fcu->modifiers.first; fcm; fcm= fcm->next) {
1676                         /* data for specific modifiers */
1677                         switch (fcm->type) {
1678                                 case FMODIFIER_TYPE_PYTHON:
1679                                 {
1680                                         FMod_Python *data= (FMod_Python *)fcm->data;
1681                                         data->script = newlibadr(fd, id->lib, data->script);
1682                                 }
1683                                         break;
1684                         }
1685                 }
1686         }
1687 }
1688
1689 /* NOTE: this assumes that link_list has already been called on the list */
1690 static void direct_link_fcurves(FileData *fd, ListBase *list)
1691 {
1692         FCurve *fcu;
1693         FModifier *fcm;
1694
1695         /* link F-Curve data to F-Curve again (non ID-libs) */
1696         for (fcu= list->first; fcu; fcu= fcu->next) {
1697                 /* curve data */
1698                 fcu->bezt= newdataadr(fd, fcu->bezt);
1699                 fcu->fpt= newdataadr(fd, fcu->fpt);
1700
1701                 /* rna path */
1702                 fcu->rna_path= newdataadr(fd, fcu->rna_path);
1703
1704                 /* group */
1705                 fcu->grp= newdataadr(fd, fcu->grp);
1706
1707                 /* driver */
1708                 fcu->driver= newdataadr(fd, fcu->driver);
1709                 if (fcu->driver) {
1710                         ChannelDriver *driver= fcu->driver;
1711
1712                         driver->rna_path= newdataadr(fd, driver->rna_path);
1713                         driver->rna_path2= newdataadr(fd, driver->rna_path2);
1714                 }
1715
1716                 /* modifiers */
1717                 link_list(fd, &fcu->modifiers);
1718                 for (fcm= fcu->modifiers.first; fcm; fcm= fcm->next) {
1719                         /* relink general data */
1720                         fcm->data = newdataadr(fd, fcm->data);
1721
1722                         /* do relinking of data for specific types */
1723                         switch (fcm->type) {
1724                                 case FMODIFIER_TYPE_GENERATOR:
1725                                 {
1726                                         FMod_Generator *data= (FMod_Generator *)fcm->data;
1727
1728                                         data->coefficients= newdataadr(fd, data->coefficients);
1729                                 }
1730                                         break;
1731                                 case FMODIFIER_TYPE_ENVELOPE:
1732                                 {
1733                                         FMod_Envelope *data= (FMod_Envelope *)fcm->data;
1734
1735                                         data->data= newdataadr(fd, data->data);
1736                                 }
1737                                         break;
1738                                 case FMODIFIER_TYPE_PYTHON:
1739                                 {
1740                                         FMod_Python *data= (FMod_Python *)fcm->data;
1741
1742                                         data->prop = newdataadr(fd, data->prop);
1743                                         IDP_DirectLinkProperty(data->prop, (fd->flags & FD_FLAGS_SWITCH_ENDIAN), fd);
1744                                 }
1745                                         break;
1746                         }
1747                 }
1748         }
1749 }
1750
1751
1752 static void lib_link_action(FileData *fd, Main *main)
1753 {
1754         bAction *act;
1755         bActionChannel *chan;
1756
1757         for (act= main->action.first; act; act= act->id.next) {
1758                 if (act->id.flag & LIB_NEEDLINK) {
1759                         act->id.flag -= LIB_NEEDLINK;
1760
1761 // XXX depreceated - old animation system <<<
1762                         for (chan=act->chanbase.first; chan; chan=chan->next) {
1763                                 chan->ipo= newlibadr_us(fd, act->id.lib, chan->ipo);
1764                                 lib_link_constraint_channels(fd, &act->id, &chan->constraintChannels);
1765                         }
1766 // >>> XXX depreceated - old animation system
1767
1768                         lib_link_fcurves(fd, &act->id, &act->curves);
1769                 }
1770         }
1771 }
1772
1773 static void direct_link_action(FileData *fd, bAction *act)
1774 {
1775         bActionChannel *achan; // XXX depreceated - old animation system
1776         bActionGroup *agrp;
1777
1778         link_list(fd, &act->curves);
1779         link_list(fd, &act->chanbase); // XXX depreceated - old animation system
1780         link_list(fd, &act->groups);
1781         link_list(fd, &act->markers);
1782
1783 // XXX depreceated - old animation system <<<
1784         for (achan = act->chanbase.first; achan; achan=achan->next) {
1785                 achan->grp= newdataadr(fd, achan->grp);
1786
1787                 link_list(fd, &achan->constraintChannels);
1788         }
1789 // >>> XXX depreceated - old animation system
1790
1791         direct_link_fcurves(fd, &act->curves);
1792
1793         for (agrp = act->groups.first; agrp; agrp= agrp->next) {
1794                 agrp->channels.first= newdataadr(fd, agrp->channels.first);
1795                 agrp->channels.last= newdataadr(fd, agrp->channels.last);
1796         }
1797 }
1798
1799 /* ------- */
1800
1801 static void lib_link_keyingsets(FileData *fd, ID *id, ListBase *list)
1802 {
1803         KeyingSet *ks;
1804         KS_Path *ksp;
1805
1806         /* here, we're only interested in the ID pointer stored in some of the paths */
1807         for (ks= list->first; ks; ks= ks->next) {
1808                 for (ksp= ks->paths.first; ksp; ksp= ksp->next) {
1809                         ksp->id= newlibadr(fd, id->lib, ksp->id);
1810                 }
1811         }
1812 }
1813
1814 /* NOTE: this assumes that link_list has already been called on the list */
1815 static void direct_link_keyingsets(FileData *fd, ListBase *list)
1816 {
1817         KeyingSet *ks;
1818         KS_Path *ksp;
1819
1820         /* link KeyingSet data to KeyingSet again (non ID-libs) */
1821         for (ks= list->first; ks; ks= ks->next) {
1822                 /* paths */
1823                 link_list(fd, &ks->paths);
1824
1825                 for (ksp= ks->paths.first; ksp; ksp= ksp->next) {
1826                         /* rna path */
1827                         ksp->rna_path= newdataadr(fd, ksp->rna_path);
1828                 }
1829         }
1830 }
1831
1832 /* ------- */
1833
1834 static void lib_link_animdata(FileData *fd, ID *id, AnimData *adt)
1835 {
1836         if (adt == NULL)
1837                 return;
1838
1839         /* link action data */
1840         adt->action= newlibadr_us(fd, id->lib, adt->action);
1841
1842         /* link drivers */
1843         lib_link_fcurves(fd, id, &adt->drivers);
1844
1845         /* overrides don't have lib-link for now, so no need to do anything */
1846
1847         /* link NLA-data */
1848         // TODO...
1849 }
1850
1851 static void direct_link_animdata(FileData *fd, AnimData *adt)
1852 {
1853         /* NOTE: must have called newdataadr already before doing this... */
1854         if (adt == NULL)
1855                 return;
1856
1857         /* link drivers */
1858         link_list(fd, &adt->drivers);
1859         direct_link_fcurves(fd, &adt->drivers);
1860
1861         /* link overrides */
1862         // TODO...
1863
1864         /* link NLA-data */
1865         // TODO...
1866 }
1867
1868 /* ************ READ NODE TREE *************** */
1869
1870 /* singe node tree (also used for material/scene trees), ntree is not NULL */
1871 static void lib_link_ntree(FileData *fd, ID *id, bNodeTree *ntree)
1872 {
1873         bNode *node;
1874
1875         if(ntree->adt) lib_link_animdata(fd, &ntree->id, ntree->adt);
1876
1877         for(node= ntree->nodes.first; node; node= node->next)
1878                 node->id= newlibadr_us(fd, id->lib, node->id);
1879 }
1880
1881 /* library ntree linking after fileread */
1882 static void lib_link_nodetree(FileData *fd, Main *main)
1883 {
1884         bNodeTree *ntree;
1885
1886         /* only link ID pointers */
1887         for(ntree= main->nodetree.first; ntree; ntree= ntree->id.next) {
1888                 if(ntree->id.flag & LIB_NEEDLINK) {
1889                         ntree->id.flag -= LIB_NEEDLINK;
1890                         lib_link_ntree(fd, &ntree->id, ntree);
1891                 }
1892         }
1893 }
1894
1895 /* verify types for nodes and groups, all data has to be read */
1896 /* open = 0: appending/linking, open = 1: open new file (need to clean out dynamic
1897 * typedefs*/
1898 static void lib_verify_nodetree(Main *main, int open)
1899 {
1900         Scene *sce;
1901         Material *ma;
1902         Tex *tx;
1903         bNodeTree *ntree;
1904
1905         /* this crashes blender on undo/redo
1906                 if(open==1) {
1907                         reinit_nodesystem();
1908                 }*/
1909
1910         /* now create the own typeinfo structs an verify nodes */
1911         /* here we still assume no groups in groups */
1912         for(ntree= main->nodetree.first; ntree; ntree= ntree->id.next) {
1913                 ntreeVerifyTypes(ntree);        /* internal nodes, no groups! */
1914                 ntreeMakeOwnType(ntree);        /* for group usage */
1915         }
1916
1917         /* now verify all types in material trees, groups are set OK now */
1918         for(ma= main->mat.first; ma; ma= ma->id.next) {
1919                 if(ma->nodetree)
1920                         ntreeVerifyTypes(ma->nodetree);
1921         }
1922         /* and scene trees */
1923         for(sce= main->scene.first; sce; sce= sce->id.next) {
1924                 if(sce->nodetree)
1925                         ntreeVerifyTypes(sce->nodetree);
1926         }
1927         /* and texture trees */
1928         for(tx= main->tex.first; tx; tx= tx->id.next) {
1929                 if(tx->nodetree)
1930                         ntreeVerifyTypes(tx->nodetree);
1931         }
1932 }
1933
1934
1935
1936 /* ntree itself has been read! */
1937 static void direct_link_nodetree(FileData *fd, bNodeTree *ntree)
1938 {
1939         /* note: writing and reading goes in sync, for speed */
1940         bNode *node;
1941         bNodeSocket *sock;
1942         bNodeLink *link;
1943
1944         ntree->init= 0;         /* to set callbacks and force setting types */
1945         ntree->owntype= NULL;
1946         ntree->timecursor= NULL;
1947
1948         ntree->adt= newdataadr(fd, ntree->adt);
1949         direct_link_animdata(fd, ntree->adt);
1950
1951         link_list(fd, &ntree->nodes);
1952         for(node= ntree->nodes.first; node; node= node->next) {
1953                 if(node->type == NODE_DYNAMIC) {
1954                         node->custom1= 0;
1955                         node->custom1= BSET(node->custom1, NODE_DYNAMIC_LOADED);
1956                         node->typeinfo= NULL;
1957                 }
1958
1959                 node->storage= newdataadr(fd, node->storage);
1960                 if(node->storage) {
1961
1962                         /* could be handlerized at some point */
1963                         if(ntree->type==NTREE_SHADER && (node->type==SH_NODE_CURVE_VEC || node->type==SH_NODE_CURVE_RGB))
1964                                 direct_link_curvemapping(fd, node->storage);
1965                         else if(ntree->type==NTREE_COMPOSIT) {
1966                                 if( ELEM3(node->type, CMP_NODE_TIME, CMP_NODE_CURVE_VEC, CMP_NODE_CURVE_RGB))
1967                                         direct_link_curvemapping(fd, node->storage);
1968                                 else if(ELEM3(node->type, CMP_NODE_IMAGE, CMP_NODE_VIEWER, CMP_NODE_SPLITVIEWER))
1969                                         ((ImageUser *)node->storage)->ok= 1;
1970                         }
1971                         else if( ntree->type==NTREE_TEXTURE && (node->type==TEX_NODE_CURVE_RGB || node->type==TEX_NODE_CURVE_TIME) ) {
1972                                 direct_link_curvemapping(fd, node->storage);
1973                         }
1974                 }
1975                 link_list(fd, &node->inputs);
1976                 link_list(fd, &node->outputs);
1977         }
1978         link_list(fd, &ntree->links);
1979
1980         /* and we connect the rest */
1981         for(node= ntree->nodes.first; node; node= node->next) {
1982                 node->preview= newimaadr(fd, node->preview);
1983                 node->lasty= 0;
1984                 for(sock= node->inputs.first; sock; sock= sock->next)
1985                         sock->link= newdataadr(fd, sock->link);
1986                 for(sock= node->outputs.first; sock; sock= sock->next)
1987                         sock->ns.data= NULL;
1988         }
1989         for(link= ntree->links.first; link; link= link->next) {
1990                 link->fromnode= newdataadr(fd, link->fromnode);
1991                 link->tonode= newdataadr(fd, link->tonode);
1992                 link->fromsock= newdataadr(fd, link->fromsock);
1993                 link->tosock= newdataadr(fd, link->tosock);
1994         }
1995
1996         /* set selin and selout */
1997         for(node= ntree->nodes.first; node; node= node->next) {
1998                 for(sock= node->inputs.first; sock; sock= sock->next) {
1999                         if(sock->flag & SOCK_SEL) {
2000                                 ntree->selin= sock;
2001                                 break;
2002                         }
2003                 }
2004                 for(sock= node->outputs.first; sock; sock= sock->next) {
2005                         if(sock->flag & SOCK_SEL) {
2006                                 ntree->selout= sock;
2007                                 break;
2008                         }
2009                 }
2010         }
2011
2012         /* type verification is in lib-link */
2013 }
2014
2015 /* ************ READ ARMATURE ***************** */
2016
2017 static void lib_link_constraints(FileData *fd, ID *id, ListBase *conlist)
2018 {
2019         bConstraint *con;
2020
2021         for (con = conlist->first; con; con=con->next) {
2022                 /* patch for error introduced by changing constraints (dunno how) */
2023                 /* if con->data type changes, dna cannot resolve the pointer! (ton) */
2024                 if(con->data==NULL) {
2025                         con->type= CONSTRAINT_TYPE_NULL;
2026                 }
2027                 /* own ipo, all constraints have it */
2028                 con->ipo= newlibadr_us(fd, id->lib, con->ipo); // XXX depreceated - old animation system
2029
2030                 switch (con->type) {
2031                 case CONSTRAINT_TYPE_PYTHON:
2032                         {
2033                                 bPythonConstraint *data= (bPythonConstraint*)con->data;
2034                                 bConstraintTarget *ct;
2035
2036                                 for (ct= data->targets.first; ct; ct= ct->next)
2037                                         ct->tar = newlibadr(fd, id->lib, ct->tar);
2038
2039                                 data->text = newlibadr(fd, id->lib, data->text);
2040                                 //IDP_LibLinkProperty(data->prop, (fd->flags & FD_FLAGS_SWITCH_ENDIAN), fd);
2041                         }
2042                         break;
2043                 case CONSTRAINT_TYPE_ACTION:
2044                         {
2045                                 bActionConstraint *data;
2046                                 data= ((bActionConstraint*)con->data);
2047                                 data->tar = newlibadr(fd, id->lib, data->tar);
2048                                 data->act = newlibadr(fd, id->lib, data->act);
2049                         }
2050                         break;
2051                 case CONSTRAINT_TYPE_LOCLIKE:
2052                         {
2053                                 bLocateLikeConstraint *data;
2054                                 data= ((bLocateLikeConstraint*)con->data);
2055                                 data->tar = newlibadr(fd, id->lib, data->tar);
2056                         }
2057                         break;
2058                 case CONSTRAINT_TYPE_ROTLIKE:
2059                         {
2060                                 bRotateLikeConstraint *data;
2061                                 data= ((bRotateLikeConstraint*)con->data);
2062                                 data->tar = newlibadr(fd, id->lib, data->tar);
2063                         }
2064                         break;
2065                 case CONSTRAINT_TYPE_SIZELIKE:
2066                         {
2067                                 bSizeLikeConstraint *data;
2068                                 data= ((bSizeLikeConstraint*)con->data);
2069                                 data->tar = newlibadr(fd, id->lib, data->tar);
2070                         }
2071                         break;
2072                 case CONSTRAINT_TYPE_KINEMATIC:
2073                         {
2074                                 bKinematicConstraint *data;
2075                                 data = ((bKinematicConstraint*)con->data);
2076                                 data->tar = newlibadr(fd, id->lib, data->tar);
2077                                 data->poletar = newlibadr(fd, id->lib, data->poletar);
2078                         }
2079                         break;
2080                 case CONSTRAINT_TYPE_TRACKTO:
2081                         {
2082                                 bTrackToConstraint *data;
2083                                 data = ((bTrackToConstraint*)con->data);
2084                                 data->tar = newlibadr(fd, id->lib, data->tar);
2085                         }
2086                         break;
2087                 case CONSTRAINT_TYPE_MINMAX:
2088                         {
2089                                 bMinMaxConstraint *data;
2090                                 data = ((bMinMaxConstraint*)con->data);
2091                                 data->tar = newlibadr(fd, id->lib, data->tar);
2092                         }
2093                         break;
2094                 case CONSTRAINT_TYPE_LOCKTRACK:
2095                         {
2096                                 bLockTrackConstraint *data;
2097                                 data= ((bLockTrackConstraint*)con->data);
2098                                 data->tar = newlibadr(fd, id->lib, data->tar);
2099                         }
2100                         break;
2101                 case CONSTRAINT_TYPE_FOLLOWPATH:
2102                         {
2103                                 bFollowPathConstraint *data;
2104                                 data= ((bFollowPathConstraint*)con->data);
2105                                 data->tar = newlibadr(fd, id->lib, data->tar);
2106                         }
2107                         break;
2108                 case CONSTRAINT_TYPE_STRETCHTO:
2109                         {
2110                                 bStretchToConstraint *data;
2111                                 data= ((bStretchToConstraint*)con->data);
2112                                 data->tar = newlibadr(fd, id->lib, data->tar);
2113                         }
2114                         break;
2115                 case CONSTRAINT_TYPE_RIGIDBODYJOINT:
2116                         {
2117                                 bRigidBodyJointConstraint *data;
2118                                 data= ((bRigidBodyJointConstraint*)con->data);
2119                                 data->tar = newlibadr(fd, id->lib, data->tar);
2120                         }
2121                         break;
2122                 case CONSTRAINT_TYPE_CLAMPTO:
2123                         {
2124                                 bClampToConstraint *data;
2125                                 data= ((bClampToConstraint*)con->data);
2126                                 data->tar = newlibadr(fd, id->lib, data->tar);
2127                         }
2128                         break;
2129                 case CONSTRAINT_TYPE_CHILDOF:
2130                         {
2131                                 bChildOfConstraint *data;
2132                                 data= ((bChildOfConstraint*)con->data);
2133                                 data->tar = newlibadr(fd, id->lib, data->tar);
2134                         }
2135                         break;
2136                 case CONSTRAINT_TYPE_TRANSFORM:
2137                         {
2138                                 bTransformConstraint *data;
2139                                 data= ((bTransformConstraint*)con->data);
2140                                 data->tar = newlibadr(fd, id->lib, data->tar);
2141                         }
2142                         break;
2143                 case CONSTRAINT_TYPE_DISTLIMIT:
2144                         {
2145                                 bDistLimitConstraint *data;
2146                                 data= ((bDistLimitConstraint*)con->data);
2147                                 data->tar = newlibadr(fd, id->lib, data->tar);
2148                         }
2149                         break;
2150                 case CONSTRAINT_TYPE_NULL:
2151                         break;
2152                 }
2153         }
2154 }
2155
2156 static void direct_link_constraints(FileData *fd, ListBase *lb)
2157 {
2158         bConstraint *cons;
2159
2160         link_list(fd, lb);
2161         for (cons=lb->first; cons; cons=cons->next) {
2162                 cons->data = newdataadr(fd, cons->data);
2163
2164                 if (cons->type == CONSTRAINT_TYPE_PYTHON) {
2165                         bPythonConstraint *data= cons->data;
2166                         link_list(fd, &data->targets);
2167                         data->prop = newdataadr(fd, data->prop);
2168                         IDP_DirectLinkProperty(data->prop, (fd->flags & FD_FLAGS_SWITCH_ENDIAN), fd);
2169                 }
2170         }
2171 }
2172
2173 static void lib_link_pose(FileData *fd, Object *ob, bPose *pose)
2174 {
2175         bPoseChannel *pchan;
2176         bArmature *arm= ob->data;
2177         int rebuild;
2178
2179         if (!pose || !arm)
2180                 return;
2181
2182         /* always rebuild to match proxy or lib changes */
2183         rebuild= ob->proxy || (ob->id.lib==NULL && arm->id.lib);
2184
2185         for (pchan = pose->chanbase.first; pchan; pchan=pchan->next) {
2186                 lib_link_constraints(fd, (ID *)ob, &pchan->constraints);
2187
2188                 /* hurms... loop in a loop, but yah... later... (ton) */
2189                 pchan->bone= get_named_bone(arm, pchan->name);
2190
2191                 pchan->custom= newlibadr(fd, arm->id.lib, pchan->custom);
2192                 if(pchan->bone==NULL)
2193                         rebuild= 1;
2194                 else if(ob->id.lib==NULL && arm->id.lib) {
2195                         /* local pose selection copied to armature, bit hackish */
2196                         pchan->bone->flag &= ~(BONE_SELECTED|BONE_ACTIVE);
2197                         pchan->bone->flag |= pchan->selectflag;
2198                 }
2199         }
2200
2201         if(rebuild) {
2202                 ob->recalc= OB_RECALC;
2203                 pose->flag |= POSE_RECALC;
2204         }
2205 }
2206
2207 static void lib_link_armature(FileData *fd, Main *main)
2208 {
2209         bArmature *arm;
2210
2211         arm= main->armature.first;
2212
2213         while(arm) {
2214                 if(arm->id.flag & LIB_NEEDLINK) {
2215                         arm->id.flag -= LIB_NEEDLINK;
2216                 }
2217                 arm= arm->id.next;
2218         }
2219 }
2220
2221 static void direct_link_bones(FileData *fd, Bone* bone)
2222 {
2223         Bone    *child;
2224
2225         bone->parent= newdataadr(fd, bone->parent);
2226
2227         link_list(fd, &bone->childbase);
2228
2229         for (child=bone->childbase.first; child; child=child->next) {
2230                 direct_link_bones(fd, child);
2231         }
2232 }
2233
2234 static void direct_link_armature(FileData *fd, bArmature *arm)
2235 {
2236         Bone    *bone;
2237
2238         link_list(fd, &arm->bonebase);
2239         arm->edbo= NULL;
2240
2241         bone=arm->bonebase.first;
2242         while (bone) {
2243                 direct_link_bones(fd, bone);
2244                 bone=bone->next;
2245         }
2246 }
2247
2248 /* ************ READ CAMERA ***************** */
2249
2250 static void lib_link_camera(FileData *fd, Main *main)
2251 {
2252         Camera *ca;
2253
2254         ca= main->camera.first;
2255         while(ca) {
2256                 if(ca->id.flag & LIB_NEEDLINK) {
2257                         if (ca->adt) lib_link_animdata(fd, &ca->id, ca->adt);
2258
2259                         ca->ipo= newlibadr_us(fd, ca->id.lib, ca->ipo); // XXX depreceated - old animation system
2260
2261                         ca->dof_ob= newlibadr_us(fd, ca->id.lib, ca->dof_ob);
2262
2263                         lib_link_scriptlink(fd, &ca->id, &ca->scriptlink);
2264
2265                         ca->id.flag -= LIB_NEEDLINK;
2266                 }
2267                 ca= ca->id.next;
2268         }
2269 }
2270
2271 static void direct_link_camera(FileData *fd, Camera *ca)
2272 {
2273         ca->adt= newdataadr(fd, ca->adt);
2274         direct_link_animdata(fd, ca->adt);
2275
2276         direct_link_scriptlink(fd, &ca->scriptlink);
2277 }
2278
2279
2280 /* ************ READ LAMP ***************** */
2281
2282 static void lib_link_lamp(FileData *fd, Main *main)
2283 {
2284         Lamp *la;
2285         MTex *mtex;
2286         int a;
2287
2288         la= main->lamp.first;
2289         while(la) {
2290                 if(la->id.flag & LIB_NEEDLINK) {
2291                         if (la->adt) lib_link_animdata(fd, &la->id, la->adt);
2292
2293                         for(a=0; a<MAX_MTEX; a++) {
2294                                 mtex= la->mtex[a];
2295                                 if(mtex) {
2296                                         mtex->tex= newlibadr_us(fd, la->id.lib, mtex->tex);
2297                                         mtex->object= newlibadr(fd, la->id.lib, mtex->object);
2298                                 }
2299                         }
2300
2301                         la->ipo= newlibadr_us(fd, la->id.lib, la->ipo); // XXX depreceated - old animation system
2302
2303                         lib_link_scriptlink(fd, &la->id, &la->scriptlink);
2304
2305                         la->id.flag -= LIB_NEEDLINK;
2306                 }
2307                 la= la->id.next;
2308         }
2309 }
2310
2311 static void direct_link_lamp(FileData *fd, Lamp *la)
2312 {
2313         int a;
2314
2315         la->adt= newdataadr(fd, la->adt);
2316         direct_link_animdata(fd, la->adt);
2317
2318         direct_link_scriptlink(fd, &la->scriptlink);
2319
2320         for(a=0; a<MAX_MTEX; a++) {
2321                 la->mtex[a]= newdataadr(fd, la->mtex[a]);
2322         }
2323
2324         la->curfalloff= newdataadr(fd, la->curfalloff);
2325         if(la->curfalloff)
2326                 direct_link_curvemapping(fd, la->curfalloff);
2327
2328         la->preview = direct_link_preview_image(fd, la->preview);
2329 }
2330
2331 /* ************ READ keys ***************** */
2332
2333 static void lib_link_key(FileData *fd, Main *main)
2334 {
2335         Key *key;
2336
2337         key= main->key.first;
2338         while(key) {
2339                 if(key->id.flag & LIB_NEEDLINK) {
2340                         if(key->adt) lib_link_animdata(fd, &key->id, key->adt);
2341
2342                         key->ipo= newlibadr_us(fd, key->id.lib, key->ipo); // XXX depreceated - old animation system
2343                         key->from= newlibadr(fd, key->id.lib, key->from);
2344
2345                         key->id.flag -= LIB_NEEDLINK;
2346                 }
2347                 key= key->id.next;
2348         }
2349 }
2350
2351 static void switch_endian_keyblock(Key *key, KeyBlock *kb)
2352 {
2353         int elemsize, a, b;
2354         char *data, *poin, *cp;
2355
2356         elemsize= key->elemsize;
2357         data= kb->data;
2358
2359         for(a=0; a<kb->totelem; a++) {
2360
2361                 cp= key->elemstr;
2362                 poin= data;
2363
2364                 while( cp[0] ) {        /* cp[0]==amount */
2365
2366                         switch(cp[1]) {         /* cp[1]= type */
2367                         case IPO_FLOAT:
2368                         case IPO_BPOINT:
2369                         case IPO_BEZTRIPLE:
2370                                 b= cp[0];
2371                                 while(b--) {
2372                                         SWITCH_INT((*poin));
2373                                         poin+= 4;
2374                                 }
2375                                 break;
2376                         }
2377
2378                         cp+= 2;
2379
2380                 }
2381                 data+= elemsize;
2382         }
2383 }
2384
2385 static void direct_link_key(FileData *fd, Key *key)
2386 {
2387         KeyBlock *kb;
2388
2389         link_list(fd, &(key->block));
2390
2391         key->adt= newdataadr(fd, key->adt);
2392         direct_link_animdata(fd, key->adt);
2393
2394         key->refkey= newdataadr(fd, key->refkey);
2395
2396         kb= key->block.first;
2397         while(kb) {
2398
2399                 kb->data= newdataadr(fd, kb->data);
2400
2401                 if(fd->flags & FD_FLAGS_SWITCH_ENDIAN)
2402                         switch_endian_keyblock(key, kb);
2403
2404                 kb= kb->next;
2405         }
2406 }
2407
2408 /* ************ READ mball ***************** */
2409
2410 static void lib_link_mball(FileData *fd, Main *main)
2411 {
2412         MetaBall *mb;
2413         int a;
2414
2415         mb= main->mball.first;
2416         while(mb) {
2417                 if(mb->id.flag & LIB_NEEDLINK) {
2418
2419                         for(a=0; a<mb->totcol; a++) mb->mat[a]= newlibadr_us(fd, mb->id.lib, mb->mat[a]);
2420
2421                         mb->ipo= newlibadr_us(fd, mb->id.lib, mb->ipo); // XXX depreceated - old animation system
2422
2423                         mb->id.flag -= LIB_NEEDLINK;
2424                 }
2425                 mb= mb->id.next;
2426         }
2427 }
2428
2429 static void direct_link_mball(FileData *fd, MetaBall *mb)
2430 {
2431         mb->mat= newdataadr(fd, mb->mat);
2432         test_pointer_array(fd, (void **)&mb->mat);
2433
2434         link_list(fd, &(mb->elems));
2435
2436         mb->disp.first= mb->disp.last= NULL;
2437         mb->editelems= NULL;
2438         mb->bb= NULL;
2439 }
2440
2441 /* ************ READ WORLD ***************** */
2442
2443 static void lib_link_world(FileData *fd, Main *main)
2444 {
2445         World *wrld;
2446         MTex *mtex;
2447         int a;
2448
2449         wrld= main->world.first;
2450         while(wrld) {
2451                 if(wrld->id.flag & LIB_NEEDLINK) {
2452                         if (wrld->adt) lib_link_animdata(fd, &wrld->id, wrld->adt);
2453
2454                         wrld->ipo= newlibadr_us(fd, wrld->id.lib, wrld->ipo); // XXX depreceated - old animation system
2455
2456                         for(a=0; a<MAX_MTEX; a++) {
2457                                 mtex= wrld->mtex[a];
2458                                 if(mtex) {
2459                                         mtex->tex= newlibadr_us(fd, wrld->id.lib, mtex->tex);
2460                                         mtex->object= newlibadr(fd, wrld->id.lib, mtex->object);
2461                                 }
2462                         }
2463
2464                         lib_link_scriptlink(fd, &wrld->id, &wrld->scriptlink);
2465
2466                         wrld->id.flag -= LIB_NEEDLINK;
2467                 }
2468                 wrld= wrld->id.next;
2469         }
2470 }
2471
2472 static void direct_link_world(FileData *fd, World *wrld)
2473 {
2474         int a;
2475
2476         wrld->adt= newdataadr(fd, wrld->adt);
2477         direct_link_animdata(fd, wrld->adt);
2478
2479         direct_link_scriptlink(fd, &wrld->scriptlink);
2480
2481         for(a=0; a<MAX_MTEX; a++) {
2482                 wrld->mtex[a]= newdataadr(fd, wrld->mtex[a]);
2483         }
2484         wrld->preview = direct_link_preview_image(fd, wrld->preview);
2485 }
2486
2487
2488 /* ************ READ VFONT ***************** */
2489
2490 static void lib_link_vfont(FileData *fd, Main *main)
2491 {
2492         VFont *vf;
2493
2494         vf= main->vfont.first;
2495         while(vf) {
2496                 if(vf->id.flag & LIB_NEEDLINK) {
2497                         vf->id.flag -= LIB_NEEDLINK;
2498                 }
2499                 vf= vf->id.next;
2500         }
2501 }
2502
2503 static void direct_link_vfont(FileData *fd, VFont *vf)
2504 {
2505         vf->data= NULL;
2506         vf->packedfile= direct_link_packedfile(fd, vf->packedfile);
2507 }
2508
2509 /* ************ READ TEXT ****************** */
2510
2511 static void lib_link_text(FileData *fd, Main *main)
2512 {
2513         Text *text;
2514
2515         text= main->text.first;
2516         while(text) {
2517                 if(text->id.flag & LIB_NEEDLINK) {
2518                         text->id.flag -= LIB_NEEDLINK;
2519                 }
2520                 text= text->id.next;
2521         }
2522 }
2523
2524 static void direct_link_text(FileData *fd, Text *text)
2525 {
2526         TextLine *ln;
2527
2528         text->name= newdataadr(fd, text->name);
2529
2530         text->undo_pos= -1;
2531         text->undo_len= TXT_INIT_UNDO;
2532         text->undo_buf= MEM_mallocN(text->undo_len, "undo buf");
2533
2534         text->compiled= NULL;
2535
2536 /*
2537         if(text->flags & TXT_ISEXT) {
2538                 reopen_text(text);
2539         } else {
2540 */
2541
2542         link_list(fd, &text->lines);
2543         link_list(fd, &text->markers);
2544
2545         text->curl= newdataadr(fd, text->curl);
2546         text->sell= newdataadr(fd, text->sell);
2547
2548         ln= text->lines.first;
2549         while(ln) {
2550                 ln->line= newdataadr(fd, ln->line);
2551                 ln->format= NULL;
2552
2553                 if (ln->len != (int) strlen(ln->line)) {
2554                         printf("Error loading text, line lengths differ\n");
2555                         ln->len = strlen(ln->line);
2556                 }
2557
2558                 ln= ln->next;
2559         }
2560
2561         text->flags = (text->flags) & ~TXT_ISEXT;
2562
2563         text->id.us= 1;
2564 }
2565
2566 /* ************ READ IMAGE ***************** */
2567
2568 static void lib_link_image(FileData *fd, Main *main)
2569 {
2570         Image *ima;
2571
2572         ima= main->image.first;
2573         while (ima) {
2574                 if(ima->id.flag & LIB_NEEDLINK) {
2575                         if (ima->id.properties) IDP_LibLinkProperty(ima->id.properties, (fd->flags & FD_FLAGS_SWITCH_ENDIAN), fd);
2576
2577                         ima->id.flag -= LIB_NEEDLINK;
2578                 }
2579                 ima= ima->id.next;
2580         }
2581 }
2582
2583 static void link_ibuf_list(FileData *fd, ListBase *lb)
2584 {
2585         Link *ln, *prev;
2586
2587         if(lb->first==NULL) return;
2588
2589         lb->first= newimaadr(fd, lb->first);
2590         ln= lb->first;
2591         prev= NULL;
2592         while(ln) {
2593                 ln->next= newimaadr(fd, ln->next);
2594                 ln->prev= prev;
2595                 prev= ln;
2596                 ln= ln->next;
2597         }
2598         lb->last= prev;
2599 }
2600
2601 static void direct_link_image(FileData *fd, Image *ima)
2602 {
2603         /* for undo system, pointers could be restored */
2604         if(fd->imamap)
2605                 link_ibuf_list(fd, &ima->ibufs);
2606         else
2607                 ima->ibufs.first= ima->ibufs.last= NULL;
2608
2609         /* if not restored, we keep the binded opengl index */
2610         if(ima->ibufs.first==NULL) {
2611                 ima->bindcode= 0;
2612                 ima->gputexture= NULL;
2613         }
2614
2615         ima->anim= NULL;
2616         ima->rr= NULL;
2617         ima->repbind= NULL;
2618
2619         ima->packedfile = direct_link_packedfile(fd, ima->packedfile);
2620         ima->preview = direct_link_preview_image(fd, ima->preview);
2621         ima->ok= 1;
2622 }
2623
2624
2625 /* ************ READ CURVE ***************** */
2626
2627 static void lib_link_curve(FileData *fd, Main *main)
2628 {
2629         Curve *cu;
2630         int a;
2631
2632         cu= main->curve.first;
2633         while(cu) {
2634                 if(cu->id.flag & LIB_NEEDLINK) {
2635                         if(cu->adt) lib_link_animdata(fd, &cu->id, cu->adt);
2636
2637                         for(a=0; a<cu->totcol; a++) cu->mat[a]= newlibadr_us(fd, cu->id.lib, cu->mat[a]);
2638
2639                         cu->bevobj= newlibadr(fd, cu->id.lib, cu->bevobj);
2640                         cu->taperobj= newlibadr(fd, cu->id.lib, cu->taperobj);
2641                         cu->textoncurve= newlibadr(fd, cu->id.lib, cu->textoncurve);
2642                         cu->vfont= newlibadr_us(fd, cu->id.lib, cu->vfont);
2643                         cu->vfontb= newlibadr_us(fd, cu->id.lib, cu->vfontb);
2644                         cu->vfonti= newlibadr_us(fd, cu->id.lib, cu->vfonti);
2645                         cu->vfontbi= newlibadr_us(fd, cu->id.lib, cu->vfontbi);
2646
2647                         cu->ipo= newlibadr_us(fd, cu->id.lib, cu->ipo); // XXX depreceated - old animation system
2648                         cu->key= newlibadr_us(fd, cu->id.lib, cu->key);
2649
2650                         cu->id.flag -= LIB_NEEDLINK;
2651                 }
2652                 cu= cu->id.next;
2653         }
2654 }
2655
2656
2657 static void switch_endian_knots(Nurb *nu)
2658 {
2659         int len;
2660
2661         if(nu->knotsu) {
2662                 len= KNOTSU(nu);
2663                 while(len--) {
2664                         SWITCH_INT(nu->knotsu[len]);
2665                 }
2666         }
2667         if(nu->knotsv) {
2668                 len= KNOTSV(nu);
2669                 while(len--) {
2670                         SWITCH_INT(nu->knotsv[len]);
2671                 }
2672         }
2673 }
2674
2675 static void direct_link_curve(FileData *fd, Curve *cu)
2676 {
2677         Nurb *nu;
2678         TextBox *tb;
2679
2680         cu->adt= newdataadr(fd, cu->adt);
2681         direct_link_animdata(fd, cu->adt);
2682
2683         cu->mat= newdataadr(fd, cu->mat);
2684         test_pointer_array(fd, (void **)&cu->mat);
2685         cu->str= newdataadr(fd, cu->str);
2686         cu->strinfo= newdataadr(fd, cu->strinfo);
2687         cu->tb= newdataadr(fd, cu->tb);
2688
2689         if(cu->vfont==0) link_list(fd, &(cu->nurb));
2690         else {
2691                 cu->nurb.first=cu->nurb.last= 0;
2692
2693                 tb= MEM_callocN(MAXTEXTBOX*sizeof(TextBox), "TextBoxread");
2694                 if (cu->tb) {
2695                         memcpy(tb, cu->tb, cu->totbox*sizeof(TextBox));
2696                         MEM_freeN(cu->tb);
2697                         cu->tb= tb;
2698                 } else {
2699                         cu->totbox = 1;
2700                         cu->actbox = 1;
2701                         cu->tb = tb;
2702                         cu->tb[0].w = cu->linewidth;
2703                 }
2704                 if (cu->wordspace == 0.0) cu->wordspace = 1.0;
2705         }
2706
2707         cu->bev.first=cu->bev.last= NULL;
2708         cu->disp.first=cu->disp.last= NULL;
2709         cu->editnurb= NULL;
2710         cu->lastselbp= NULL;
2711         cu->path= NULL;
2712         cu->editfont= NULL;
2713
2714         nu= cu->nurb.first;
2715         while(nu) {
2716                 nu->bezt= newdataadr(fd, nu->bezt);
2717                 nu->bp= newdataadr(fd, nu->bp);
2718                 nu->knotsu= newdataadr(fd, nu->knotsu);
2719                 nu->knotsv= newdataadr(fd, nu->knotsv);
2720                 if (cu->vfont==0) nu->charidx= nu->mat_nr;
2721
2722                 if(fd->flags & FD_FLAGS_SWITCH_ENDIAN) {
2723                         switch_endian_knots(nu);
2724                 }
2725
2726                 nu= nu->next;
2727         }
2728         cu->bb= NULL;
2729 }
2730
2731 /* ************ READ TEX ***************** */
2732
2733 static void lib_link_texture(FileData *fd, Main *main)
2734 {
2735         Tex *tex;
2736
2737         tex= main->tex.first;
2738         while(tex) {
2739                 if(tex->id.flag & LIB_NEEDLINK) {
2740                         if(tex->adt) lib_link_animdata(fd, &tex->id, tex->adt);
2741
2742                         tex->ima= newlibadr_us(fd, tex->id.lib, tex->ima);
2743                         tex->ipo= newlibadr_us(fd, tex->id.lib, tex->ipo);
2744                         if(tex->env) tex->env->object= newlibadr(fd, tex->id.lib, tex->env->object);
2745
2746                         if(tex->nodetree)
2747                                 lib_link_ntree(fd, &tex->id, tex->nodetree);
2748
2749                         tex->id.flag -= LIB_NEEDLINK;
2750                 }
2751                 tex= tex->id.next;
2752         }
2753 }
2754
2755 static void direct_link_texture(FileData *fd, Tex *tex)
2756 {
2757         tex->adt= newdataadr(fd, tex->adt);
2758         direct_link_animdata(fd, tex->adt);
2759
2760         tex->plugin= newdataadr(fd, tex->plugin);
2761         if(tex->plugin) {
2762                 tex->plugin->handle= 0;
2763                 open_plugin_tex(tex->plugin);
2764                 /* initialize data for this instance, if an initialization
2765                  * function exists.
2766                  */
2767                 if (tex->plugin->instance_init)
2768                         tex->plugin->instance_init((void *) tex->plugin->data);
2769         }
2770         tex->coba= newdataadr(fd, tex->coba);
2771         tex->env= newdataadr(fd, tex->env);
2772         if(tex->env) {
2773                 tex->env->ima= NULL;
2774                 memset(tex->env->cube, 0, 6*sizeof(void *));
2775                 tex->env->ok= 0;
2776         }
2777
2778         tex->nodetree= newdataadr(fd, tex->nodetree);
2779         if(tex->nodetree)
2780                 direct_link_nodetree(fd, tex->nodetree);
2781
2782         tex->preview = direct_link_preview_image(fd, tex->preview);
2783
2784         tex->iuser.ok= 1;
2785 }
2786
2787
2788
2789 /* ************ READ MATERIAL ***************** */
2790
2791 static void lib_link_material(FileData *fd, Main *main)
2792 {
2793         Material *ma;
2794         MTex *mtex;
2795         int a;
2796
2797         ma= main->mat.first;
2798         while(ma) {
2799                 if(ma->id.flag & LIB_NEEDLINK) {
2800                         if(ma->adt) lib_link_animdata(fd, &ma->id, ma->adt);
2801
2802                         /*Link ID Properties -- and copy this comment EXACTLY for easy finding
2803                         of library blocks that implement this.*/
2804                         if (ma->id.properties) IDP_LibLinkProperty(ma->id.properties, (fd->flags & FD_FLAGS_SWITCH_ENDIAN), fd);
2805
2806                         ma->ipo= newlibadr_us(fd, ma->id.lib, ma->ipo);
2807                         ma->group= newlibadr_us(fd, ma->id.lib, ma->group);
2808
2809                         for(a=0; a<MAX_MTEX; a++) {
2810                                 mtex= ma->mtex[a];
2811                                 if(mtex) {
2812                                         mtex->tex= newlibadr_us(fd, ma->id.lib, mtex->tex);
2813                                         mtex->object= newlibadr(fd, ma->id.lib, mtex->object);
2814                                 }
2815                         }
2816                         lib_link_scriptlink(fd, &ma->id, &ma->scriptlink);
2817
2818                         if(ma->nodetree)
2819                                 lib_link_ntree(fd, &ma->id, ma->nodetree);
2820
2821                         ma->id.flag -= LIB_NEEDLINK;
2822                 }
2823                 ma= ma->id.next;
2824         }
2825 }
2826
2827 static void direct_link_material(FileData *fd, Material *ma)
2828 {
2829         int a;
2830
2831         ma->adt= newdataadr(fd, ma->adt);
2832         direct_link_animdata(fd, ma->adt);
2833
2834         for(a=0; a<MAX_MTEX; a++) {
2835                 ma->mtex[a]= newdataadr(fd, ma->mtex[a]);
2836         }
2837
2838         ma->ramp_col= newdataadr(fd, ma->ramp_col);
2839         ma->ramp_spec= newdataadr(fd, ma->ramp_spec);
2840
2841         direct_link_scriptlink(fd, &ma->scriptlink);
2842
2843         ma->nodetree= newdataadr(fd, ma->nodetree);
2844         if(ma->nodetree)
2845                 direct_link_nodetree(fd, ma->nodetree);
2846
2847         ma->preview = direct_link_preview_image(fd, ma->preview);
2848         ma->gpumaterial.first = ma->gpumaterial.last = NULL;
2849 }
2850
2851 /* ************ READ PARTICLE SETTINGS ***************** */
2852
2853 static void direct_link_pointcache(FileData *fd, PointCache *cache)
2854 {
2855         cache->flag &= ~(PTCACHE_SIMULATION_VALID|PTCACHE_BAKE_EDIT_ACTIVE);
2856         cache->simframe= 0;
2857 }
2858
2859 static void lib_link_particlesettings(FileData *fd, Main *main)
2860 {
2861         ParticleSettings *part;
2862
2863         part= main->particle.first;
2864         while(part) {
2865                 if(part->id.flag & LIB_NEEDLINK) {
2866                         part->ipo= newlibadr_us(fd, part->id.lib, part->ipo); // XXX depreceated - old animation system
2867                         part->dup_ob = newlibadr(fd, part->id.lib, part->dup_ob);
2868                         part->dup_group = newlibadr(fd, part->id.lib, part->dup_group);
2869                         part->eff_group = newlibadr(fd, part->id.lib, part->eff_group);
2870                         part->bb_ob = newlibadr(fd, part->id.lib, part->bb_ob);
2871                         part->id.flag -= LIB_NEEDLINK;
2872                 }
2873                 part= part->id.next;
2874         }
2875 }
2876
2877 static void direct_link_particlesettings(FileData *fd, ParticleSettings *part)
2878 {
2879         part->pd= newdataadr(fd, part->pd);
2880         part->pd2= newdataadr(fd, part->pd2);
2881 }
2882
2883 static void lib_link_particlesystems(FileData *fd, Object *ob, ID *id, ListBase *particles)
2884 {
2885         ParticleSystem *psys, *psysnext;
2886         int a;
2887
2888         for(psys=particles->first; psys; psys=psysnext){
2889                 ParticleData *pa;
2890
2891                 psysnext= psys->next;
2892
2893                 psys->part = newlibadr_us(fd, id->lib, psys->part);
2894                 if(psys->part) {
2895                         psys->target_ob = newlibadr(fd, id->lib, psys->target_ob);
2896                         psys->keyed_ob = newlibadr(fd, id->lib, psys->keyed_ob);
2897
2898                         for(a=0,pa=psys->particles; a<psys->totpart; a++,pa++){
2899                                 pa->stick_ob=newlibadr(fd, id->lib, pa->stick_ob);
2900                         }
2901                 }
2902                 else {
2903                         /* particle modifier must be removed before particle system */
2904                         ParticleSystemModifierData *psmd= psys_get_modifier(ob,psys);
2905                         BLI_remlink(&ob->modifiers, psmd);
2906                         modifier_free((ModifierData *)psmd);
2907
2908                         BLI_remlink(particles, psys);
2909                         MEM_freeN(psys);
2910                 }
2911         }
2912 }
2913 static void direct_link_particlesystems(FileData *fd, ListBase *particles)
2914 {
2915         ParticleSystem *psys;
2916         int a;
2917
2918         for(psys=particles->first; psys; psys=psys->next) {
2919                 psys->particles=newdataadr(fd,psys->particles);
2920                 if(psys->particles && psys->particles->hair){
2921                         ParticleData *pa = psys->particles;
2922                         for(a=0; a<psys->totpart; a++, pa++)
2923                                 pa->hair=newdataadr(fd,pa->hair);
2924                 }
2925                 if(psys->particles && psys->particles->keys){
2926                         ParticleData *pa = psys->particles;
2927                         for(a=0; a<psys->totpart; a++, pa++) {
2928                                 pa->keys= NULL;
2929                                 pa->totkey= 0;
2930                         }
2931
2932                         psys->flag &= ~PSYS_KEYED;
2933                 }
2934                 psys->child=newdataadr(fd,psys->child);
2935                 psys->effectors.first=psys->effectors.last=0;
2936
2937                 psys->soft= newdataadr(fd, psys->soft);
2938                 if(psys->soft) {
2939                         SoftBody *sb = psys->soft;
2940                         sb->particles = psys;
2941                         sb->bpoint= NULL;       // init pointers so it gets rebuilt nicely
2942                         sb->bspring= NULL;
2943                         sb->scratch= NULL;
2944
2945                         sb->pointcache= newdataadr(fd, sb->pointcache);
2946                         if(sb->pointcache)
2947                                 direct_link_pointcache(fd, sb->pointcache);
2948                 }
2949
2950                 psys->edit = 0;
2951                 psys->free_edit = NULL;
2952                 psys->pathcache = 0;
2953                 psys->childcache = 0;
2954                 psys->pathcachebufs.first = psys->pathcachebufs.last = 0;
2955                 psys->childcachebufs.first = psys->childcachebufs.last = 0;
2956                 psys->reactevents.first = psys->reactevents.last = 0;
2957
2958                 psys->pointcache= newdataadr(fd, psys->pointcache);
2959                 if(psys->pointcache)
2960                         direct_link_pointcache(fd, psys->pointcache);
2961         }
2962         return;
2963 }
2964
2965 /* ************ READ MESH ***************** */
2966
2967 static void lib_link_mtface(FileData *fd, Mesh *me, MTFace *mtface, int totface)
2968 {
2969         MTFace *tf= mtface;
2970         int i;
2971
2972         for (i=0; i<totface; i++, tf++) {
2973                 tf->tpage= newlibadr(fd, me->id.lib, tf->tpage);
2974                 if(tf->tpage && tf->tpage->id.us==0)
2975                         tf->tpage->id.us= 1;
2976         }
2977 }
2978
2979 static void lib_link_customdata_mtface(FileData *fd, Mesh *me, CustomData *fdata, int totface)
2980 {
2981         int i;
2982         for(i=0; i<fdata->totlayer; i++) {
2983                 CustomDataLayer *layer = &fdata->layers[i];
2984
2985                 if(layer->type == CD_MTFACE)
2986                         lib_link_mtface(fd, me, layer->data, totface);
2987         }
2988
2989 }
2990
2991 static void lib_link_mesh(FileData *fd, Main *main)
2992 {
2993         Mesh *me;
2994
2995         me= main->mesh.first;
2996         while(me) {
2997                 if(me->id.flag & LIB_NEEDLINK) {
2998                         int i;
2999
3000                         /*Link ID Properties -- and copy this comment EXACTLY for easy finding
3001                         of library blocks that implement this.*/
3002                         if (me->id.properties) IDP_LibLinkProperty(me->id.properties, (fd->flags & FD_FLAGS_SWITCH_ENDIAN), fd);
3003
3004                         /* this check added for python created meshes */
3005                         if(me->mat) {
3006                                 for(i=0; i<me->totcol; i++) {
3007                                         me->mat[i]= newlibadr_us(fd, me->id.lib, me->mat[i]);
3008                                 }
3009                         }
3010                         else me->totcol= 0;
3011
3012                         me->ipo= newlibadr_us(fd, me->id.lib, me->ipo);
3013                         me->key= newlibadr_us(fd, me->id.lib, me->key);
3014                         me->texcomesh= newlibadr_us(fd, me->id.lib, me->texcomesh);
3015
3016                         lib_link_customdata_mtface(fd, me, &me->fdata, me->totface);
3017                         if(me->mr && me->mr->levels.first)
3018                                 lib_link_customdata_mtface(fd, me, &me->mr->fdata,
3019                                                            ((MultiresLevel*)me->mr->levels.first)->totface);
3020
3021                         me->id.flag -= LIB_NEEDLINK;
3022                 }
3023                 me= me->id.next;
3024         }
3025 }
3026
3027 static void direct_link_dverts(FileData *fd, int count, MDeformVert *mdverts)
3028 {
3029         int     i;
3030
3031         if (!mdverts)
3032                 return;
3033
3034         for (i=0; i<count; i++) {
3035                 mdverts[i].dw=newdataadr(fd, mdverts[i].dw);
3036                 if (!mdverts[i].dw)
3037                         mdverts[i].totweight=0;
3038         }
3039 }
3040
3041 static void direct_link_mdisps(FileData *fd, int count, MDisps *mdisps)
3042 {
3043         if(mdisps) {
3044                 int i;
3045
3046                 for(i = 0; i < count; ++i) {
3047                         mdisps[i].disps = newdataadr(fd, mdisps[i].disps);
3048                         if(!mdisps[i].disps)
3049                                 mdisps[i].totdisp = 0;
3050                 }
3051         }
3052 }
3053
3054 static void direct_link_customdata(FileData *fd, CustomData *data, int count)
3055 {
3056         int i = 0;
3057
3058         data->layers= newdataadr(fd, data->layers);
3059
3060         while (i < data->totlayer) {
3061                 CustomDataLayer *layer = &data->layers[i];
3062
3063                 if (CustomData_verify_versions(data, i)) {
3064                         layer->data = newdataadr(fd, layer->data);
3065                         if(layer->type == CD_MDISPS)
3066                                 direct_link_mdisps(fd, count, layer->data);
3067                         i++;
3068                 }
3069         }
3070 }
3071
3072 static void direct_link_mesh(FileData *fd, Mesh *mesh)
3073 {
3074         mesh->mat= newdataadr(fd, mesh->mat);
3075         test_pointer_array(fd, (void **)&mesh->mat);
3076
3077         mesh->mvert= newdataadr(fd, mesh->mvert);
3078         mesh->medge= newdataadr(fd, mesh->medge);
3079         mesh->mface= newdataadr(fd, mesh->mface);
3080         mesh->tface= newdataadr(fd, mesh->tface);
3081         mesh->mtface= newdataadr(fd, mesh->mtface);
3082         mesh->mcol= newdataadr(fd, mesh->mcol);
3083         mesh->msticky= newdataadr(fd, mesh->msticky);
3084         mesh->dvert= newdataadr(fd, mesh->dvert);
3085
3086         /* Partial-mesh visibility (do this before using totvert, totface, or totedge!) */
3087         mesh->pv= newdataadr(fd, mesh->pv);
3088         if(mesh->pv) {
3089                 mesh->pv->vert_map= newdataadr(fd, mesh->pv->vert_map);
3090                 mesh->pv->edge_map= newdataadr(fd, mesh->pv->edge_map);
3091                 mesh->pv->old_faces= newdataadr(fd, mesh->pv->old_faces);
3092                 mesh->pv->old_edges= newdataadr(fd, mesh->pv->old_edges);
3093         }
3094
3095         /* normally direct_link_dverts should be called in direct_link_customdata,
3096            but for backwards compat in do_versions to work we do it here */
3097         direct_link_dverts(fd, mesh->pv ? mesh->pv->totvert : mesh->totvert, mesh->dvert);
3098
3099         direct_link_customdata(fd, &mesh->vdata, mesh->pv ? mesh->pv->totvert : mesh->totvert);
3100         direct_link_customdata(fd, &mesh->edata, mesh->pv ? mesh->pv->totedge : mesh->totedge);
3101         direct_link_customdata(fd, &mesh->fdata, mesh->pv ? mesh->pv->totface : mesh->totface);
3102
3103         mesh->bb= NULL;
3104         mesh->mselect = NULL;
3105         mesh->edit_mesh= NULL;
3106
3107         /* Multires data */
3108         mesh->mr= newdataadr(fd, mesh->mr);
3109         if(mesh->mr) {
3110                 MultiresLevel *lvl;
3111
3112                 link_list(fd, &mesh->mr->levels);
3113                 lvl= mesh->mr->levels.first;
3114
3115                 direct_link_customdata(fd, &mesh->mr->vdata, lvl->totvert);
3116                 direct_link_dverts(fd, lvl->totvert, CustomData_get(&mesh->mr->vdata, 0, CD_MDEFORMVERT));
3117                 direct_link_customdata(fd, &mesh->mr->fdata, lvl->totface);
3118
3119                 if(!mesh->mr->edge_flags)
3120                         mesh->mr->edge_flags= MEM_callocN(sizeof(short)*lvl->totedge, "Multires Edge Flags");
3121                 if(!mesh->mr->edge_creases)
3122                         mesh->mr->edge_creases= MEM_callocN(sizeof(char)*lvl->totedge, "Multires Edge Creases");
3123
3124                 mesh->mr->verts = newdataadr(fd, mesh->mr->verts);
3125
3126                 for(; lvl; lvl= lvl->next) {
3127                         lvl->verts= newdataadr(fd, lvl->verts);
3128                         lvl->faces= newdataadr(fd, lvl->faces);
3129                         lvl->edges= newdataadr(fd, lvl->edges);
3130                         lvl->colfaces= newdataadr(fd, lvl->colfaces);
3131                 }
3132         }
3133
3134         if((fd->flags & FD_FLAGS_SWITCH_ENDIAN) && mesh->tface) {
3135                 TFace *tf= mesh->tface;
3136                 unsigned int i;
3137
3138                 for (i=0; i< (mesh->pv ? mesh->pv->totface : mesh->totface); i++, tf++) {
3139                         SWITCH_INT(tf->col[0]);
3140                         SWITCH_INT(tf->col[1]);
3141                         SWITCH_INT(tf->col[2]);
3142                         SWITCH_INT(tf->col[3]);
3143                 }
3144         }
3145 }
3146
3147 /* ************ READ LATTICE ***************** */
3148
3149 static void lib_link_latt(FileData *fd, Main *main)
3150 {
3151         Lattice *lt;
3152
3153         lt= main->latt.first;
3154         while(lt) {
3155                 if(lt->id.flag & LIB_NEEDLINK) {
3156
3157                         lt->ipo= newlibadr_us(fd, lt->id.lib, lt->ipo); // XXX depreceated - old animation system
3158                         lt->key= newlibadr_us(fd, lt->id.lib, lt->key);
3159
3160                         lt->id.flag -= LIB_NEEDLINK;
3161                 }
3162                 lt= lt->id.next;
3163         }
3164 }
3165
3166 static void direct_link_latt(FileData *fd, Lattice *lt)
3167 {
3168         lt->def= newdataadr(fd, lt->def);
3169
3170         lt->dvert= newdataadr(fd, lt->dvert);
3171         direct_link_dverts(fd, lt->pntsu*lt->pntsv*lt->pntsw, lt->dvert);
3172
3173         lt->editlatt= NULL;
3174 }
3175
3176
3177 /* ************ READ OBJECT ***************** */
3178
3179 static void lib_link_modifiers__linkModifiers(void *userData, Object *ob,
3180                                               ID **idpoin)
3181 {
3182         FileData *fd = userData;
3183
3184         *idpoin = newlibadr(fd, ob->id.lib, *idpoin);
3185         /* hardcoded bad exception; non-object modifier data gets user count (texture, displace) */
3186         if(*idpoin && GS((*idpoin)->name)!=ID_OB)
3187                 (*idpoin)->us++;
3188 }
3189 static void lib_link_modifiers(FileData *fd, Object *ob)
3190 {
3191         modifiers_foreachIDLink(ob, lib_link_modifiers__linkModifiers, fd);
3192 }
3193
3194 static void lib_link_object(FileData *fd, Main *main)
3195 {
3196         Object *ob;
3197         PartEff *paf;
3198         bSensor *sens;
3199         bController *cont;
3200         bActuator *act;
3201         void *poin;
3202         int warn=0, a;
3203
3204         ob= main->object.first;
3205         while(ob) {