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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  19  *
  20  * The Original Code is Copyright (C) 2001-2002 by NaN Holding BV.
  21  * All rights reserved.
  22  *
  23  *
  24  * Contributor(s): Blender Foundation
  25  *
  26  * ***** END GPL LICENSE BLOCK *****
  27  *
  28  */
  29
  30 #include "zlib.h"
  31
  32 #include <limits.h>
  33 #include <stdio.h> // for printf fopen fwrite fclose sprintf FILE
  34 #include <stdlib.h> // for getenv atoi
  35 #include <stddef.h> // for offsetof
  36 #include <fcntl.h> // for open
  37 #include <string.h> // for strrchr strncmp strstr
  38 #include <math.h> // for fabs
  39
  40 #ifndef WIN32
  41         #include <unistd.h> // for read close
  42         #include <sys/param.h> // for MAXPATHLEN
  43 #else
  44         #include <io.h> // for open close read
  45 #include "winsock2.h"
  46 #include "BLI_winstuff.h"
  47 #endif
  48
  49 #include "DNA_anim_types.h"
  50 #include "DNA_armature_types.h"
  51 #include "DNA_actuator_types.h"
  52 #include "DNA_brush_types.h"
  53 #include "DNA_camera_types.h"
  54 #include "DNA_cloth_types.h"
  55 #include "DNA_controller_types.h"
  56 #include "DNA_constraint_types.h"
  57 #include "DNA_effect_types.h"
  58 #include "DNA_fileglobal_types.h"
  59 #include "DNA_genfile.h"
  60 #include "DNA_group_types.h"
  61 #include "DNA_gpencil_types.h"
  62 #include "DNA_ipo_types.h"
  63 #include "DNA_key_types.h"
  64 #include "DNA_lattice_types.h"
  65 #include "DNA_lamp_types.h"
  66 #include "DNA_linestyle_types.h"
  67 #include "DNA_meta_types.h"
  68 #include "DNA_material_types.h"
  69 #include "DNA_mesh_types.h"
  70 #include "DNA_meshdata_types.h"
  71 #include "DNA_nla_types.h"
  72 #include "DNA_node_types.h"
  73 #include "DNA_object_fluidsim.h" // NT
  74 #include "DNA_packedFile_types.h"
  75 #include "DNA_property_types.h"
  76 #include "DNA_text_types.h"
  77 #include "DNA_view3d_types.h"
  78 #include "DNA_screen_types.h"
  79 #include "DNA_sensor_types.h"
  80 #include "DNA_sdna_types.h"
  81 #include "DNA_scene_types.h"
  82 #include "DNA_sequence_types.h"
  83 #include "DNA_smoke_types.h"
  84 #include "DNA_sound_types.h"
  85 #include "DNA_space_types.h"
  86 #include "DNA_vfont_types.h"
  87 #include "DNA_world_types.h"
  88
  89 #include "MEM_guardedalloc.h"
  90
  91 #include "BLI_blenlib.h"
  92 #include "BLI_math.h"
  93
  94 #include "BKE_anim.h"
  95 #include "BKE_action.h"
  96 #include "BKE_armature.h"
  97 #include "BKE_brush.h"
  98 #include "BKE_colortools.h"
  99 #include "BKE_constraint.h"
 100 #include "BKE_context.h"
 101 #include "BKE_curve.h"
 102 #include "BKE_deform.h"
 103 #include "BKE_effect.h" /* give_parteff */
 104 #include "BKE_fcurve.h"
 105 #include "BKE_global.h" // for G
 106 #include "BKE_group.h"
 107 #include "BKE_image.h"
 108 #include "BKE_lattice.h"
 109 #include "BKE_library.h" // for which_libbase
 110 #include "BKE_idcode.h"
 111 #include "BKE_main.h" // for Main
 112 #include "BKE_mesh.h" // for ME_ defines (patching)
 113 #include "BKE_modifier.h"
 114 #include "BKE_multires.h"
 115 #include "BKE_node.h" // for tree type defines
 116 #include "BKE_object.h"
 117 #include "BKE_paint.h"
 118 #include "BKE_particle.h"
 119 #include "BKE_pointcache.h"
 120 #include "BKE_property.h" // for get_ob_property
 121 #include "BKE_report.h"
 122 #include "BKE_sca.h" // for init_actuator
 123 #include "BKE_scene.h"
 124 #include "BKE_screen.h"
 125 #include "BKE_sequencer.h"
 126 #include "BKE_texture.h" // for open_plugin_tex
 127 #include "BKE_utildefines.h" // SWITCH_INT DATA ENDB DNA1 O_BINARY GLOB USER TEST REND
 128 #include "BKE_sound.h"
 129
 130 //XXX #include "BIF_butspace.h" // badlevel, for do_versions, patching event codes
 131 //XXX #include "BIF_filelist.h" // badlevel too, where to move this? - elubie
 132 //XXX #include "BIF_previewrender.h" // bedlelvel, for struct RenderInfo
 133 #include "BLO_readfile.h"
 134 #include "BLO_undofile.h"
 135 #include "BLO_readblenfile.h" // streaming read pipe, for BLO_readblenfile BLO_readblenfilememory
 136
 137 #include "readfile.h"
 138
 139 #include "PIL_time.h"
 140
 141 #include <errno.h>
 142
 143 /*
 144  Remark: still a weak point is the newaddress() function, that doesnt solve reading from
 145  multiple files at the same time
 146
 147  (added remark: oh, i thought that was solved? will look at that... (ton)
 148
 149 READ
 150 - Existing Library (Main) push or free
 151 - allocate new Main
 152 - load file
 153 - read SDNA
 154 - for each LibBlock
 155         - read LibBlock
 156         - if a Library
 157                 - make a new Main
 158                 - attach ID's to it
 159         - else
 160                 - read associated 'direct data'
 161                 - link direct data (internal and to LibBlock)
 162 - read FileGlobal
 163 - read USER data, only when indicated (file is ~/X.XX/startup.blend)
 164 - free file
 165 - per Library (per Main)
 166         - read file
 167         - read SDNA
 168         - find LibBlocks and attach IDs to Main
 169                 - if external LibBlock
 170                         - search all Main's
 171                                 - or it's already read,
 172                                 - or not read yet
 173                                 - or make new Main
 174         - per LibBlock
 175                 - read recursive
 176                 - read associated direct data
 177                 - link direct data (internal and to LibBlock)
 178         - free file
 179 - per Library with unread LibBlocks
 180         - read file
 181         - read SDNA
 182         - per LibBlock
 183                            - read recursive
 184                            - read associated direct data
 185                            - link direct data (internal and to LibBlock)
 186                 - free file
 187 - join all Mains
 188 - link all LibBlocks and indirect pointers to libblocks
 189 - initialize FileGlobal and copy pointers to Global
 190 */
 191
 192 /* also occurs in library.c */
 193 /* GS reads the memory pointed at in a specific ordering. There are,
 194  * however two definitions for it. I have jotted them down here, both,
 195  * but I think the first one is actually used. The thing is that
 196  * big-endian systems might read this the wrong way round. OTOH, we
 197  * constructed the IDs that are read out with this macro explicitly as
 198  * well. I expect we'll sort it out soon... */
 199
 200 /* from blendef: */
 201 #define GS(a)   (*((short *)(a)))
 202
 203 /* from misc_util: flip the bytes from x  */
 204 /*  #define GS(x) (((unsigned char *)(x))[0] << 8 | ((unsigned char *)(x))[1]) */
 205
 206 // only used here in readfile.c
 207 #define SWITCH_LONGINT(a) { \
 208         char s_i, *p_i; \
 209         p_i= (char *)&(a);  \
 210         s_i=p_i[0]; p_i[0]=p_i[7]; p_i[7]=s_i; \
 211         s_i=p_i[1]; p_i[1]=p_i[6]; p_i[6]=s_i; \
 212         s_i=p_i[2]; p_i[2]=p_i[5]; p_i[5]=s_i; \
 213         s_i=p_i[3]; p_i[3]=p_i[4]; p_i[4]=s_i; }
 214
 215 /***/
 216
 217 typedef struct OldNew {
 218         void *old, *newp;
 219         int nr;
 220 } OldNew;
 221
 222 typedef struct OldNewMap {
 223         OldNew *entries;
 224         int nentries, entriessize;
 225         int sorted;
 226         int lasthit;
 227 } OldNewMap;
 228
 229
 230 /* local prototypes */
 231 static void *read_struct(FileData *fd, BHead *bh, char *blockname);
 232
 233
 234 static OldNewMap *oldnewmap_new(void)
 235 {
 236         OldNewMap *onm= MEM_callocN(sizeof(*onm), "OldNewMap");
 237
 238         onm->entriessize= 1024;
 239         onm->entries= MEM_mallocN(sizeof(*onm->entries)*onm->entriessize, "OldNewMap.entries");
 240
 241         return onm;
 242 }
 243
 244 static int verg_oldnewmap(const void *v1, const void *v2)
 245 {
 246         const struct OldNew *x1=v1, *x2=v2;
 247
 248         if( x1->old > x2->old) return 1;
 249         else if( x1->old < x2->old) return -1;
 250         return 0;
 251 }
 252
 253
 254 static void oldnewmap_sort(FileData *fd)
 255 {
 256         qsort(fd->libmap->entries, fd->libmap->nentries, sizeof(OldNew), verg_oldnewmap);
 257         fd->libmap->sorted= 1;
 258 }
 259
 260 /* nr is zero for data, and ID code for libdata */
 261 static void oldnewmap_insert(OldNewMap *onm, void *oldaddr, void *newaddr, int nr)
 262 {
 263         OldNew *entry;
 264
 265         if(oldaddr==NULL || newaddr==NULL) return;
 266
 267         if (onm->nentries==onm->entriessize) {
 268                 int osize= onm->entriessize;
 269                 OldNew *oentries= onm->entries;
 270
 271                 onm->entriessize*= 2;
 272                 onm->entries= MEM_mallocN(sizeof(*onm->entries)*onm->entriessize, "OldNewMap.entries");
 273
 274                 memcpy(onm->entries, oentries, sizeof(*oentries)*osize);
 275                 MEM_freeN(oentries);
 276         }
 277
 278         entry= &onm->entries[onm->nentries++];
 279         entry->old= oldaddr;
 280         entry->newp= newaddr;
 281         entry->nr= nr;
 282 }
 283
 284 static void *oldnewmap_lookup_and_inc(OldNewMap *onm, void *addr)
 285 {
 286         int i;
 287
 288         if (onm->lasthit<onm->nentries-1) {
 289                 OldNew *entry= &onm->entries[++onm->lasthit];
 290
 291                 if (entry->old==addr) {
 292                         entry->nr++;
 293                         return entry->newp;
 294                 }
 295         }
 296
 297         for (i=0; i<onm->nentries; i++) {
 298                 OldNew *entry= &onm->entries[i];
 299
 300                 if (entry->old==addr) {
 301                         onm->lasthit= i;
 302
 303                         entry->nr++;
 304                         return entry->newp;
 305                 }
 306         }
 307
 308         return NULL;
 309 }
 310
 311 /* for libdata, nr has ID code, no increment */
 312 static void *oldnewmap_liblookup(OldNewMap *onm, void *addr, void *lib)
 313 {
 314         int i;
 315
 316         if(addr==NULL) return NULL;
 317
 318         /* lasthit works fine for non-libdata, linking there is done in same sequence as writing */
 319         if(onm->sorted) {
 320                 OldNew entry_s, *entry;
 321
 322                 entry_s.old= addr;
 323
 324                 entry= bsearch(&entry_s, onm->entries, onm->nentries, sizeof(OldNew), verg_oldnewmap);
 325                 if(entry) {
 326                         ID *id= entry->newp;
 327
 328                         if (id && (!lib || id->lib)) {
 329                                 return entry->newp;
 330                         }
 331                 }
 332         }
 333
 334         for (i=0; i<onm->nentries; i++) {
 335                 OldNew *entry= &onm->entries[i];
 336
 337                 if (entry->old==addr) {
 338                         ID *id= entry->newp;
 339
 340                         if (id && (!lib || id->lib)) {
 341                                 return entry->newp;
 342                         }
 343                 }
 344         }
 345
 346         return NULL;
 347 }
 348
 349 static void oldnewmap_free_unused(OldNewMap *onm)
 350 {
 351         int i;
 352
 353         for (i=0; i<onm->nentries; i++) {
 354                 OldNew *entry= &onm->entries[i];
 355                 if (entry->nr==0) {
 356                         MEM_freeN(entry->newp);
 357                         entry->newp= NULL;
 358                 }
 359         }
 360 }
 361
 362 static void oldnewmap_clear(OldNewMap *onm)
 363 {
 364         onm->nentries= 0;
 365         onm->lasthit= 0;
 366 }
 367
 368 static void oldnewmap_free(OldNewMap *onm)
 369 {
 370         MEM_freeN(onm->entries);
 371         MEM_freeN(onm);
 372 }
 373
 374 /***/
 375
 376 static void read_libraries(FileData *basefd, ListBase *mainlist);
 377
 378 /* ************ help functions ***************** */
 379
 380 static void add_main_to_main(Main *mainvar, Main *from)
 381 {
 382         ListBase *lbarray[MAX_LIBARRAY], *fromarray[MAX_LIBARRAY];
 383         int a;
 384
 385         a= set_listbasepointers(mainvar, lbarray);
 386         a= set_listbasepointers(from, fromarray);
 387         while(a--) {
 388                 addlisttolist(lbarray[a], fromarray[a]);
 389         }
 390 }
 391
 392 void blo_join_main(ListBase *mainlist)
 393 {
 394         Main *tojoin, *mainl;
 395
 396
 397         mainl= mainlist->first;
 398         while ((tojoin= mainl->next)) {
 399                 add_main_to_main(mainl, tojoin);
 400                 BLI_remlink(mainlist, tojoin);
 401                 MEM_freeN(tojoin);
 402         }
 403 }
 404
 405 static void split_libdata(ListBase *lb, Main *first)
 406 {
 407         ListBase *lbn;
 408         ID *id, *idnext;
 409         Main *mainvar;
 410
 411         id= lb->first;
 412         while(id) {
 413                 idnext= id->next;
 414                 if(id->lib) {
 415                         mainvar= first;
 416                         while(mainvar) {
 417                                 if(mainvar->curlib==id->lib) {
 418                                         lbn= which_libbase(mainvar, GS(id->name));
 419                                         BLI_remlink(lb, id);
 420                                         BLI_addtail(lbn, id);
 421                                         break;
 422                                 }
 423                                 mainvar= mainvar->next;
 424                         }
 425                         if(mainvar==0) printf("error split_libdata\n");
 426                 }
 427                 id= idnext;
 428         }
 429 }
 430
 431 void blo_split_main(ListBase *mainlist, Main *main)
 432 {
 433         ListBase *lbarray[MAX_LIBARRAY];
 434         Library *lib;
 435         int i;
 436
 437         mainlist->first= mainlist->last= main;
 438         main->next= NULL;
 439
 440         if(main->library.first==NULL)
 441                 return;
 442
 443         for (lib= main->library.first; lib; lib= lib->id.next) {
 444                 Main *libmain= MEM_callocN(sizeof(Main), "libmain");
 445                 libmain->curlib= lib;
 446                 BLI_addtail(mainlist, libmain);
 447         }
 448
 449         i= set_listbasepointers(main, lbarray);
 450         while(i--)
 451                 split_libdata(lbarray[i], main->next);
 452 }
 453
 454 /* removes things like /blah/blah/../../blah/ etc, then writes in *name the full path */
 455 static void cleanup_path(const char *relabase, char *name)
 456 {
 457         char filename[FILE_MAXFILE];
 458
 459         BLI_splitdirstring(name, filename);
 460         BLI_cleanup_dir(relabase, name);
 461         strcat(name, filename);
 462 }
 463
 464 static void read_file_version(FileData *fd, Main *main)
 465 {
 466         BHead *bhead;
 467
 468         for (bhead= blo_firstbhead(fd); bhead; bhead= blo_nextbhead(fd, bhead)) {
 469                 if (bhead->code==GLOB) {
 470                         FileGlobal *fg= read_struct(fd, bhead, "Global");
 471                         if(fg) {
 472                                 main->subversionfile= fg->subversion;
 473                                 main->minversionfile= fg->minversion;
 474                                 main->minsubversionfile= fg->minsubversion;
 475                                 MEM_freeN(fg);
 476                         }
 477                         else if (bhead->code==ENDB)
 478                                 break;
 479                 }
 480         }
 481 }
 482
 483
 484 static Main *blo_find_main(FileData *fd, ListBase *mainlist, const char *name, const char *relabase)
 485 {
 486         Main *m;
 487         Library *lib;
 488         char name1[FILE_MAXDIR+FILE_MAXFILE];
 489
 490         strncpy(name1, name, sizeof(name1)-1);
 491         cleanup_path(relabase, name1);
 492 //      printf("blo_find_main: original in  %s\n", name);
 493 //      printf("blo_find_main: converted to %s\n", name1);
 494
 495         for (m= mainlist->first; m; m= m->next) {
 496                 char *libname= (m->curlib)?m->curlib->filepath:m->name;
 497
 498                 if (BLI_streq(name1, libname)) {
 499                         if(G.f & G_DEBUG) printf("blo_find_main: found library %s\n", libname);
 500                         return m;
 501                 }
 502         }
 503
 504         m= MEM_callocN(sizeof(Main), "find_main");
 505         BLI_addtail(mainlist, m);
 506
 507         lib= alloc_libblock(&m->library, ID_LI, "lib");
 508         strncpy(lib->name, name, sizeof(lib->name)-1);
 509         BLI_strncpy(lib->filepath, name1, sizeof(lib->filepath));
 510
 511         m->curlib= lib;
 512
 513         read_file_version(fd, m);
 514
 515         if(G.f & G_DEBUG) printf("blo_find_main: added new lib %s\n", name);
 516         return m;
 517 }
 518
 519
 520 /* ************ FILE PARSING ****************** */
 521
 522 static void switch_endian_bh4(BHead4 *bhead)
 523 {
 524         /* the ID_.. codes */
 525         if((bhead->code & 0xFFFF)==0) bhead->code >>=16;
 526
 527         if (bhead->code != ENDB) {
 528                 SWITCH_INT(bhead->len);
 529                 SWITCH_INT(bhead->SDNAnr);
 530                 SWITCH_INT(bhead->nr);
 531         }
 532 }
 533
 534 static void switch_endian_bh8(BHead8 *bhead)
 535 {
 536         /* the ID_.. codes */
 537         if((bhead->code & 0xFFFF)==0) bhead->code >>=16;
 538
 539         if (bhead->code != ENDB) {
 540                 SWITCH_INT(bhead->len);
 541                 SWITCH_INT(bhead->SDNAnr);
 542                 SWITCH_INT(bhead->nr);
 543         }
 544 }
 545
 546 static void bh4_from_bh8(BHead *bhead, BHead8 *bhead8, int do_endian_swap)
 547 {
 548         BHead4 *bhead4 = (BHead4 *) bhead;
 549 #if defined(WIN32) && !defined(FREE_WINDOWS)
 550         __int64 old;
 551 #else
 552         long long old;
 553 #endif
 554
 555         bhead4->code= bhead8->code;
 556         bhead4->len= bhead8->len;
 557
 558         if (bhead4->code != ENDB) {
 559
 560                 //perform a endian swap on 64bit pointers, otherwise the pointer might map to zero
 561                 //0x0000000000000000000012345678 would become 0x12345678000000000000000000000000
 562                 if (do_endian_swap) {
 563                         SWITCH_LONGINT(bhead8->old);
 564                 }
 565
 566                 /* this patch is to avoid a long long being read from not-eight aligned positions
 567                    is necessary on any modern 64bit architecture) */
 568                 memcpy(&old, &bhead8->old, 8);
 569                 bhead4->old = (int) (old >> 3);
 570
 571                 bhead4->SDNAnr= bhead8->SDNAnr;
 572                 bhead4->nr= bhead8->nr;
 573         }
 574 }
 575
 576 static void bh8_from_bh4(BHead *bhead, BHead4 *bhead4)
 577 {
 578         BHead8 *bhead8 = (BHead8 *) bhead;
 579
 580         bhead8->code= bhead4->code;
 581         bhead8->len= bhead4->len;
 582
 583         if (bhead8->code != ENDB) {
 584                 bhead8->old= bhead4->old;
 585                 bhead8->SDNAnr= bhead4->SDNAnr;
 586                 bhead8->nr= bhead4->nr;
 587         }
 588 }
 589
 590 static BHeadN *get_bhead(FileData *fd)
 591 {
 592         BHead8 bhead8;
 593         BHead4 bhead4;
 594         BHead  bhead;
 595         BHeadN *new_bhead = 0;
 596         int readsize;
 597
 598         if (fd) {
 599                 if ( ! fd->eof) {
 600
 601                         /* not strictly needed but shuts valgrind up
 602                          * since uninitialized memory gets compared */
 603                         memset(&bhead8, 0, sizeof(BHead8));
 604                         memset(&bhead4, 0, sizeof(BHead4));
 605                         memset(&bhead,  0, sizeof(BHead));
 606
 607                         // First read the bhead structure.
 608                         // Depending on the platform the file was written on this can
 609                         // be a big or little endian BHead4 or BHead8 structure.
 610
 611                         // As usual 'ENDB' (the last *partial* bhead of the file)
 612                         // needs some special handling. We don't want to EOF just yet.
 613
 614                         if (fd->flags & FD_FLAGS_FILE_POINTSIZE_IS_4) {
 615                                 bhead4.code = DATA;
 616                                 readsize = fd->read(fd, &bhead4, sizeof(bhead4));
 617
 618                                 if (readsize == sizeof(bhead4) || bhead4.code == ENDB) {
 619                                         if (fd->flags & FD_FLAGS_SWITCH_ENDIAN) {
 620                                                 switch_endian_bh4(&bhead4);
 621                                         }
 622
 623                                         if (fd->flags & FD_FLAGS_POINTSIZE_DIFFERS) {
 624                                                 bh8_from_bh4(&bhead, &bhead4);
 625                                         } else {
 626                                                 memcpy(&bhead, &bhead4, sizeof(bhead));
 627                                         }
 628                                 } else {
 629                                         fd->eof = 1;
 630                                         bhead.len= 0;
 631                                 }
 632                         } else {
 633                                 bhead8.code = DATA;
 634                                 readsize = fd->read(fd, &bhead8, sizeof(bhead8));
 635
 636                                 if (readsize == sizeof(bhead8) || bhead8.code == ENDB) {
 637                                         if (fd->flags & FD_FLAGS_SWITCH_ENDIAN) {
 638                                                 switch_endian_bh8(&bhead8);
 639                                         }
 640
 641                                         if (fd->flags & FD_FLAGS_POINTSIZE_DIFFERS) {
 642                                                 bh4_from_bh8(&bhead, &bhead8, (fd->flags & FD_FLAGS_SWITCH_ENDIAN));
 643                                         } else {
 644                                                 memcpy(&bhead, &bhead8, sizeof(bhead));
 645                                         }
 646                                 } else {
 647                                         fd->eof = 1;
 648                                         bhead.len= 0;
 649                                 }
 650                         }
 651
 652                         /* make sure people are not trying to pass bad blend files */
 653                         if (bhead.len < 0) fd->eof = 1;
 654
 655                         // bhead now contains the (converted) bhead structure. Now read
 656                         // the associated data and put everything in a BHeadN (creative naming !)
 657
 658                         if ( ! fd->eof) {
 659                                 new_bhead = MEM_mallocN(sizeof(BHeadN) + bhead.len, "new_bhead");
 660                                 if (new_bhead) {
 661                                         new_bhead->next = new_bhead->prev = 0;
 662                                         new_bhead->bhead = bhead;
 663
 664                                         readsize = fd->read(fd, new_bhead + 1, bhead.len);
 665
 666                                         if (readsize != bhead.len) {
 667                                                 fd->eof = 1;
 668                                                 MEM_freeN(new_bhead);
 669                                                 new_bhead = 0;
 670                                         }
 671                                 } else {
 672                                         fd->eof = 1;
 673                                 }
 674                         }
 675                 }
 676         }
 677
 678         // We've read a new block. Now add it to the list
 679         // of blocks.
 680
 681         if (new_bhead) {
 682                 BLI_addtail(&fd->listbase, new_bhead);
 683         }
 684
 685         return(new_bhead);
 686 }
 687
 688 BHead *blo_firstbhead(FileData *fd)
 689 {
 690         BHeadN *new_bhead;
 691         BHead *bhead = 0;
 692
 693         // Rewind the file
 694         // Read in a new block if necessary
 695
 696         new_bhead = fd->listbase.first;
 697         if (new_bhead == 0) {
 698                 new_bhead = get_bhead(fd);
 699         }
 700
 701         if (new_bhead) {
 702                 bhead = &new_bhead->bhead;
 703         }
 704
 705         return(bhead);
 706 }
 707
 708 BHead *blo_prevbhead(FileData *fd, BHead *thisblock)
 709 {
 710         BHeadN *bheadn= (BHeadN *) (((char *) thisblock) - GET_INT_FROM_POINTER( &((BHeadN*)0)->bhead) );
 711         BHeadN *prev= bheadn->prev;
 712
 713         return prev?&prev->bhead:NULL;
 714 }
 715
 716 BHead *blo_nextbhead(FileData *fd, BHead *thisblock)
 717 {
 718         BHeadN *new_bhead = NULL;
 719         BHead *bhead = NULL;
 720
 721         if (thisblock) {
 722                 // bhead is actually a sub part of BHeadN
 723                 // We calculate the BHeadN pointer from the BHead pointer below
 724                 new_bhead = (BHeadN *) (((char *) thisblock) - GET_INT_FROM_POINTER( &((BHeadN*)0)->bhead) );
 725
 726                 // get the next BHeadN. If it doesn't exist we read in the next one
 727                 new_bhead = new_bhead->next;
 728                 if (new_bhead == 0) {
 729                         new_bhead = get_bhead(fd);
 730                 }
 731         }
 732
 733         if (new_bhead) {
 734                 // here we do the reverse:
 735                 // go from the BHeadN pointer to the BHead pointer
 736                 bhead = &new_bhead->bhead;
 737         }
 738
 739         return(bhead);
 740 }
 741
 742 static void decode_blender_header(FileData *fd)
 743 {
 744         char header[SIZEOFBLENDERHEADER], num[4];
 745         int readsize;
 746
 747         // read in the header data
 748         readsize = fd->read(fd, header, sizeof(header));
 749
 750         if (readsize == sizeof(header)) {
 751                 if(strncmp(header, "BLENDER", 7) == 0) {
 752                         int remove_this_endian_test= 1;
 753
 754                         fd->flags |= FD_FLAGS_FILE_OK;
 755
 756                         // what size are pointers in the file ?
 757                         if(header[7]=='_') {
 758                                 fd->flags |= FD_FLAGS_FILE_POINTSIZE_IS_4;
 759                                 if (sizeof(void *) != 4) {
 760                                         fd->flags |= FD_FLAGS_POINTSIZE_DIFFERS;
 761                                 }
 762                         } else {
 763                                 if (sizeof(void *) != 8) {
 764                                         fd->flags |= FD_FLAGS_POINTSIZE_DIFFERS;
 765                                 }
 766                         }
 767
 768                         // is the file saved in a different endian
 769                         // than we need ?
 770                         if (((((char*)&remove_this_endian_test)[0]==1)?L_ENDIAN:B_ENDIAN) != ((header[8]=='v')?L_ENDIAN:B_ENDIAN)) {
 771                                 fd->flags |= FD_FLAGS_SWITCH_ENDIAN;
 772                         }
 773
 774                         // get the version number
 775
 776                         memcpy(num, header+9, 3);
 777                         num[3] = 0;
 778                         fd->fileversion = atoi(num);
 779                 }
 780         }
 781 }
 782
 783 static int read_file_dna(FileData *fd)
 784 {
 785         BHead *bhead;
 786
 787         for (bhead= blo_firstbhead(fd); bhead; bhead= blo_nextbhead(fd, bhead)) {
 788                 if (bhead->code==DNA1) {
 789                         int do_endian_swap= (fd->flags&FD_FLAGS_SWITCH_ENDIAN)?1:0;
 790
 791                         fd->filesdna= DNA_sdna_from_data(&bhead[1], bhead->len, do_endian_swap);
 792                         if (fd->filesdna) {
 793
 794                                 fd->compflags= DNA_struct_get_compareflags(fd->filesdna, fd->memsdna);
 795                                 /* used to retrieve ID names from (bhead+1) */
 796                                 fd->id_name_offs= DNA_elem_offset(fd->filesdna, "ID", "char", "name[]");
 797                         }
 798
 799                         return 1;
 800                 } else if (bhead->code==ENDB)
 801                         break;
 802         }
 803
 804         return 0;
 805 }
 806
 807 static int fd_read_from_file(FileData *filedata, void *buffer, unsigned int size)
 808 {
 809         int readsize = read(filedata->filedes, buffer, size);
 810
 811         if (readsize < 0) {
 812                 readsize = EOF;
 813         } else {
 814                 filedata->seek += readsize;
 815         }
 816
 817         return (readsize);
 818 }
 819
 820 static int fd_read_gzip_from_file(FileData *filedata, void *buffer, unsigned int size)
 821 {
 822         int readsize = gzread(filedata->gzfiledes, buffer, size);
 823
 824         if (readsize < 0) {
 825                 readsize = EOF;
 826         } else {
 827                 filedata->seek += readsize;
 828         }
 829
 830         return (readsize);
 831 }
 832
 833 static int fd_read_from_memory(FileData *filedata, void *buffer, unsigned int size)
 834 {
 835                 // don't read more bytes then there are available in the buffer
 836         int readsize = MIN2(size, filedata->buffersize - filedata->seek);
 837
 838         memcpy(buffer, filedata->buffer + filedata->seek, readsize);
 839         filedata->seek += readsize;
 840
 841         return (readsize);
 842 }
 843
 844 static int fd_read_from_memfile(FileData *filedata, void *buffer, unsigned int size)
 845 {
 846         static unsigned int seek= 1<<30;        /* the current position */
 847         static unsigned int offset= 0;          /* size of previous chunks */
 848         static MemFileChunk *chunk=NULL;
 849         unsigned int chunkoffset, readsize, totread;
 850
 851         if(size==0) return 0;
 852
 853         if(seek != (unsigned int)filedata->seek) {
 854                 chunk= filedata->memfile->chunks.first;
 855                 seek= 0;
 856
 857                 while(chunk) {
 858                         if(seek + chunk->size > (unsigned) filedata->seek) break;
 859                         seek+= chunk->size;
 860                         chunk= chunk->next;
 861                 }
 862                 offset= seek;
 863                 seek= filedata->seek;
 864         }
 865
 866         if(chunk) {
 867                 totread= 0;
 868
 869                 do {
 870                         /* first check if it's on the end if current chunk */
 871                         if(seek-offset == chunk->size) {
 872                                 offset+= chunk->size;
 873                                 chunk= chunk->next;
 874                         }
 875
 876                         /* debug, should never happen */
 877                         if(chunk==NULL) {
 878                                 printf("illegal read, chunk zero\n");
 879                                 return 0;
 880                         }
 881
 882                         chunkoffset= seek-offset;
 883                         readsize= size-totread;
 884
 885                         /* data can be spread over multiple chunks, so clamp size
 886                          * to within this chunk, and then it will read further in
 887                          * the next chunk */
 888                         if(chunkoffset+readsize > chunk->size)
 889                                 readsize= chunk->size-chunkoffset;
 890
 891                         memcpy((char*)buffer+totread, chunk->buf+chunkoffset, readsize);
 892                         totread += readsize;
 893                         filedata->seek += readsize;
 894                         seek += readsize;
 895                 } while(totread < size);
 896
 897                 return totread;
 898         }
 899
 900         return 0;
 901 }
 902
 903 static FileData *filedata_new(void)
 904 {
 905         FileData *fd = MEM_callocN(sizeof(FileData), "FileData");
 906
 907         fd->filedes = -1;
 908         fd->gzfiledes = NULL;
 909
 910                 /* XXX, this doesn't need to be done all the time,
 911                  * but it keeps us reentrant,  remove once we have
 912                  * a lib that provides a nice lock. - zr
 913                  */
 914         fd->memsdna = DNA_sdna_from_data(DNAstr,  DNAlen,  0);
 915
 916         fd->datamap = oldnewmap_new();
 917         fd->globmap = oldnewmap_new();
 918         fd->libmap = oldnewmap_new();
 919
 920         return fd;
 921 }
 922
 923 static FileData *blo_decode_and_check(FileData *fd, ReportList *reports)
 924 {
 925         decode_blender_header(fd);
 926
 927         if (fd->flags & FD_FLAGS_FILE_OK) {
 928                 if (!read_file_dna(fd)) {
 929                         BKE_report(reports, RPT_ERROR, "File incomplete");
 930                         blo_freefiledata(fd);
 931                         fd= NULL;
 932                 }
 933         }
 934         else {
 935                 BKE_report(reports, RPT_ERROR, "File is not a Blender file");
 936                 blo_freefiledata(fd);
 937                 fd= NULL;
 938         }
 939
 940         return fd;
 941 }
 942
 943 /* cannot be called with relative paths anymore! */
 944 /* on each new library added, it now checks for the current FileData and expands relativeness */
 945 FileData *blo_openblenderfile(char *name, ReportList *reports)
 946 {
 947         gzFile gzfile;
 948         errno= 0;
 949         gzfile= gzopen(name, "rb");
 950
 951         if (gzfile == Z_NULL) {
 952                 BKE_reportf(reports, RPT_ERROR, "Unable to open \"%s\": %s.", name, errno ? strerror(errno) : "Unknown erro reading file");
 953                 return NULL;
 954         } else {
 955                 FileData *fd = filedata_new();
 956                 fd->gzfiledes = gzfile;
 957                 fd->read = fd_read_gzip_from_file;
 958
 959                 /* needed for library_append and read_libraries */
 960                 BLI_strncpy(fd->relabase, name, sizeof(fd->relabase));
 961
 962                 return blo_decode_and_check(fd, reports);
 963         }
 964 }
 965
 966 FileData *blo_openblendermemory(void *mem, int memsize, ReportList *reports)
 967 {
 968         if (!mem || memsize<SIZEOFBLENDERHEADER) {
 969                 BKE_report(reports, RPT_ERROR, (mem)? "Unable to read": "Unable to open");
 970                 return NULL;
 971         } else {
 972                 FileData *fd= filedata_new();
 973                 fd->buffer= mem;
 974                 fd->buffersize= memsize;
 975                 fd->read= fd_read_from_memory;
 976                 fd->flags|= FD_FLAGS_NOT_MY_BUFFER;
 977
 978                 return blo_decode_and_check(fd, reports);
 979         }
 980 }
 981
 982 FileData *blo_openblendermemfile(MemFile *memfile, ReportList *reports)
 983 {
 984         if (!memfile) {
 985                 BKE_report(reports, RPT_ERROR, "Unable to open blend <memory>");
 986                 return NULL;
 987         } else {
 988                 FileData *fd= filedata_new();
 989                 fd->memfile= memfile;
 990
 991                 fd->read= fd_read_from_memfile;
 992                 fd->flags|= FD_FLAGS_NOT_MY_BUFFER;
 993
 994                 return blo_decode_and_check(fd, reports);
 995         }
 996 }
 997
 998
 999 void blo_freefiledata(FileData *fd)
1000 {
1001         if (fd) {
1002
1003                 if (fd->filedes != -1) {
1004                         close(fd->filedes);
1005                 }
1006
1007                 if (fd->gzfiledes != NULL)
1008                 {
1009                         gzclose(fd->gzfiledes);
1010                 }
1011
1012                 if (fd->buffer && !(fd->flags & FD_FLAGS_NOT_MY_BUFFER)) {
1013                         MEM_freeN(fd->buffer);
1014                         fd->buffer = 0;
1015                 }
1016
1017                 // Free all BHeadN data blocks
1018                 BLI_freelistN(&fd->listbase);
1019
1020                 if (fd->memsdna)
1021                         DNA_sdna_free(fd->memsdna);
1022                 if (fd->filesdna)
1023                         DNA_sdna_free(fd->filesdna);
1024                 if (fd->compflags)
1025                         MEM_freeN(fd->compflags);
1026
1027                 if (fd->datamap)
1028                         oldnewmap_free(fd->datamap);
1029                 if (fd->globmap)
1030                         oldnewmap_free(fd->globmap);
1031                 if (fd->imamap)
1032                         oldnewmap_free(fd->imamap);
1033                 if (fd->libmap && !(fd->flags & FD_FLAGS_NOT_MY_LIBMAP))
1034                         oldnewmap_free(fd->libmap);
1035                 if (fd->bheadmap)
1036                         MEM_freeN(fd->bheadmap);
1037
1038                 MEM_freeN(fd);
1039         }
1040 }
1041
1042 /* ************ DIV ****************** */
1043
1044 int BLO_has_bfile_extension(char *str)
1045 {
1046         return (BLI_testextensie(str, ".ble") || BLI_testextensie(str, ".blend")||BLI_testextensie(str, ".blend.gz"));
1047 }
1048
1049 int BLO_is_a_library(const char *path, char *dir, char *group)
1050 {
1051         /* return ok when a blenderfile, in dir is the filename,
1052          * in group the type of libdata
1053          */
1054         int len;
1055         char *fd;
1056
1057         strcpy(dir, path);
1058         len= strlen(dir);
1059         if(len<7) return 0;
1060         if( dir[len-1] != '/' && dir[len-1] != '\\') return 0;
1061
1062         group[0]= 0;
1063         dir[len-1]= 0;
1064
1065         /* Find the last slash */
1066         fd= BLI_last_slash(dir);
1067
1068         if(fd==0) return 0;
1069         *fd= 0;
1070         if(BLO_has_bfile_extension(fd+1)) {
1071                 /* the last part of the dir is a .blend file, no group follows */
1072                 *fd= '/'; /* put back the removed slash separating the dir and the .blend file name */
1073         }
1074         else {
1075                 char *gp = fd+1; // in case we have a .blend file, gp points to the group
1076
1077                 /* Find the last slash */
1078                 fd= BLI_last_slash(dir);
1079                 if (!fd || !BLO_has_bfile_extension(fd+1)) return 0;
1080
1081                 /* now we know that we are in a blend file and it is safe to
1082                    assume that gp actually points to a group */
1083                 if (BLI_streq("Screen", gp)==0)
1084                         BLI_strncpy(group, gp, GROUP_MAX);
1085         }
1086         return 1;
1087 }
1088
1089 /* ************** OLD POINTERS ******************* */
1090
1091 static void *newdataadr(FileData *fd, void *adr)                /* only direct databocks */
1092 {
1093         return oldnewmap_lookup_and_inc(fd->datamap, adr);
1094 }
1095
1096 static void *newglobadr(FileData *fd, void *adr)                /* direct datablocks with global linking */
1097 {
1098         return oldnewmap_lookup_and_inc(fd->globmap, adr);
1099 }
1100
1101 static void *newimaadr(FileData *fd, void *adr)         /* used to restore image data after undo */
1102 {
1103         if(fd->imamap && adr)
1104                 return oldnewmap_lookup_and_inc(fd->imamap, adr);
1105         return NULL;
1106 }
1107
1108
1109 static void *newlibadr(FileData *fd, void *lib, void *adr)              /* only lib data */
1110 {
1111         return oldnewmap_liblookup(fd->libmap, adr, lib);
1112 }
1113
1114 static void *newlibadr_us(FileData *fd, void *lib, void *adr)   /* increases user number */
1115 {
1116         ID *id= newlibadr(fd, lib, adr);
1117
1118         if(id)
1119                 id->us++;
1120
1121         return id;
1122 }
1123
1124 static void change_idid_adr_fd(FileData *fd, void *old, void *new)
1125 {
1126         int i;
1127
1128         for (i=0; i<fd->libmap->nentries; i++) {
1129                 OldNew *entry= &fd->libmap->entries[i];
1130
1131                 if (old==entry->newp && entry->nr==ID_ID) {
1132                         entry->newp= new;
1133                         if(new) entry->nr= GS( ((ID *)new)->name );
1134                         break;
1135                 }
1136         }
1137 }
1138
1139 static void change_idid_adr(ListBase *mainlist, FileData *basefd, void *old, void *new)
1140 {
1141         Main *mainptr;
1142
1143         for(mainptr= mainlist->first; mainptr; mainptr= mainptr->next) {
1144                 FileData *fd;
1145
1146                 if(mainptr->curlib) fd= mainptr->curlib->filedata;
1147                 else fd= basefd;
1148
1149                 if(fd) {
1150                         change_idid_adr_fd(fd, old, new);
1151                 }
1152         }
1153 }
1154
1155 /* lib linked proxy objects point to our local data, we need
1156  * to clear that pointer before reading the undo memfile since
1157  * the object might be removed, it is set again in reading
1158  * if the local object still exists */
1159 void blo_clear_proxy_pointers_from_lib(FileData *fd, Main *oldmain)
1160 {
1161         Object *ob= oldmain->object.first;
1162
1163         for(;ob; ob= ob->id.next)
1164                 if(ob->id.lib)
1165                         ob->proxy_from= NULL;
1166 }
1167
1168 void blo_make_image_pointer_map(FileData *fd, Main *oldmain)
1169 {
1170         Image *ima= oldmain->image.first;
1171         Scene *sce= oldmain->scene.first;
1172         int a;
1173
1174         fd->imamap= oldnewmap_new();
1175
1176         for(;ima; ima= ima->id.next) {
1177                 Link *ibuf= ima->ibufs.first;
1178                 for(; ibuf; ibuf= ibuf->next)
1179                         oldnewmap_insert(fd->imamap, ibuf, ibuf, 0);
1180                 if(ima->gputexture)
1181                         oldnewmap_insert(fd->imamap, ima->gputexture, ima->gputexture, 0);
1182                 for(a=0; a<IMA_MAX_RENDER_SLOT; a++)
1183                         if(ima->renders[a])
1184                                 oldnewmap_insert(fd->imamap, ima->renders[a], ima->renders[a], 0);
1185         }
1186         for(; sce; sce= sce->id.next) {
1187                 if(sce->nodetree) {
1188                         bNode *node;
1189                         for(node= sce->nodetree->nodes.first; node; node= node->next)
1190                                 oldnewmap_insert(fd->imamap, node->preview, node->preview, 0);
1191                 }
1192         }
1193 }
1194
1195 /* set old main image ibufs to zero if it has been restored */
1196 /* this works because freeing old main only happens after this call */
1197 void blo_end_image_pointer_map(FileData *fd, Main *oldmain)
1198 {
1199         OldNew *entry= fd->imamap->entries;
1200         Image *ima= oldmain->image.first;
1201         Scene *sce= oldmain->scene.first;
1202         int i, a;
1203
1204         /* used entries were restored, so we put them to zero */
1205         for (i=0; i<fd->imamap->nentries; i++, entry++) {
1206                  if (entry->nr>0)
1207                         entry->newp= NULL;
1208         }
1209
1210         for(;ima; ima= ima->id.next) {
1211                 Link *ibuf, *next;
1212
1213                 /* this mirrors direct_link_image */
1214                 for(ibuf= ima->ibufs.first; ibuf; ibuf= next) {
1215                         next= ibuf->next;
1216                         if(NULL==newimaadr(fd, ibuf)) { /* so was restored */
1217                                 BLI_remlink(&ima->ibufs, ibuf);
1218                                 ima->bindcode= 0;
1219                                 ima->gputexture= NULL;
1220                         }
1221                 }
1222
1223                 ima->gputexture= newimaadr(fd, ima->gputexture);
1224                 for(a=0; a<IMA_MAX_RENDER_SLOT; a++)
1225                         ima->renders[a]= newimaadr(fd, ima->renders[a]);
1226         }
1227         for(; sce; sce= sce->id.next) {
1228                 if(sce->nodetree) {
1229                         bNode *node;
1230                         for(node= sce->nodetree->nodes.first; node; node= node->next)
1231                                 node->preview= newimaadr(fd, node->preview);
1232                 }
1233         }
1234 }
1235
1236 /* undo file support: add all library pointers in lookup */
1237 void blo_add_library_pointer_map(ListBase *mainlist, FileData *fd)
1238 {
1239         Main *ptr= mainlist->first;
1240         ListBase *lbarray[MAX_LIBARRAY];
1241
1242         for(ptr= ptr->next; ptr; ptr= ptr->next) {
1243                 int i= set_listbasepointers(ptr, lbarray);
1244                 while(i--) {
1245                         ID *id;
1246                         for(id= lbarray[i]->first; id; id= id->next)
1247                                 oldnewmap_insert(fd->libmap, id, id, GS(id->name));
1248                 }
1249         }
1250 }
1251
1252
1253 /* ********** END OLD POINTERS ****************** */
1254 /* ********** READ FILE ****************** */
1255
1256 static void switch_endian_structs(struct SDNA *filesdna, BHead *bhead)
1257 {
1258         int blocksize, nblocks;
1259         char *data;
1260
1261         data= (char *)(bhead+1);
1262         blocksize= filesdna->typelens[ filesdna->structs[bhead->SDNAnr][0] ];
1263
1264         nblocks= bhead->nr;
1265         while(nblocks--) {
1266                 DNA_struct_switch_endian(filesdna, bhead->SDNAnr, data);
1267
1268                 data+= blocksize;
1269         }
1270 }
1271
1272 static void *read_struct(FileData *fd, BHead *bh, char *blockname)
1273 {
1274         void *temp= NULL;
1275
1276         if (bh->len) {
1277                 /* switch is based on file dna */
1278                 if (bh->SDNAnr && (fd->flags & FD_FLAGS_SWITCH_ENDIAN))
1279                         switch_endian_structs(fd->filesdna, bh);
1280
1281                 if (fd->compflags[bh->SDNAnr]) {        /* flag==0: doesn't exist anymore */
1282                         if(fd->compflags[bh->SDNAnr]==2) {
1283                                 temp= DNA_struct_reconstruct(fd->memsdna, fd->filesdna, fd->compflags, bh->SDNAnr, bh->nr, (bh+1));
1284                         } else {
1285                                 temp= MEM_mallocN(bh->len, blockname);
1286                                 memcpy(temp, (bh+1), bh->len);
1287                         }
1288                 }
1289         }
1290
1291         return temp;
1292 }
1293
1294 static void link_list(FileData *fd, ListBase *lb)               /* only direct data */
1295 {
1296         Link *ln, *prev;
1297
1298         if(lb->first==NULL) return;
1299
1300         lb->first= newdataadr(fd, lb->first);
1301         ln= lb->first;
1302         prev= NULL;
1303         while(ln) {
1304                 ln->next= newdataadr(fd, ln->next);
1305                 ln->prev= prev;
1306                 prev= ln;
1307                 ln= ln->next;
1308         }
1309         lb->last= prev;
1310 }
1311
1312 static void link_glob_list(FileData *fd, ListBase *lb)          /* for glob data */
1313 {
1314         Link *ln, *prev;
1315         void *poin;
1316
1317         if(lb->first==0) return;
1318         poin= newdataadr(fd, lb->first);
1319         if(lb->first) {
1320                 oldnewmap_insert(fd->globmap, lb->first, poin, 0);
1321         }
1322         lb->first= poin;
1323
1324         ln= lb->first;
1325         prev= 0;
1326         while(ln) {
1327                 poin= newdataadr(fd, ln->next);
1328                 if(ln->next) {
1329                         oldnewmap_insert(fd->globmap, ln->next, poin, 0);
1330                 }
1331                 ln->next= poin;
1332                 ln->prev= prev;
1333                 prev= ln;
1334                 ln= ln->next;
1335         }
1336         lb->last= prev;
1337 }
1338
1339 static void test_pointer_array(FileData *fd, void **mat)
1340 {
1341 #if defined(WIN32) && !defined(FREE_WINDOWS)
1342         __int64 *lpoin, *lmat;
1343 #else
1344         long long *lpoin, *lmat;
1345 #endif
1346         int *ipoin, *imat;
1347         size_t len;
1348
1349                 /* manually convert the pointer array in
1350                  * the old dna format to a pointer array in
1351                  * the new dna format.
1352                  */
1353         if(*mat) {
1354                 len= MEM_allocN_len(*mat)/fd->filesdna->pointerlen;
1355
1356                 if(fd->filesdna->pointerlen==8 && fd->memsdna->pointerlen==4) {
1357                         ipoin=imat= MEM_mallocN( len*4, "newmatar");
1358                         lpoin= *mat;
1359
1360                         while(len-- > 0) {
1361                                 if((fd->flags & FD_FLAGS_SWITCH_ENDIAN))
1362                                         SWITCH_LONGINT(*lpoin);
1363                                 *ipoin= (int) ((*lpoin) >> 3);
1364                                 ipoin++;
1365                                 lpoin++;
1366                         }
1367                         MEM_freeN(*mat);
1368                         *mat= imat;
1369                 }
1370
1371                 if(fd->filesdna->pointerlen==4 && fd->memsdna->pointerlen==8) {
1372                         lpoin=lmat= MEM_mallocN( len*8, "newmatar");
1373                         ipoin= *mat;
1374
1375                         while(len-- > 0) {
1376                                 *lpoin= *ipoin;
1377                                 ipoin++;
1378                                 lpoin++;
1379                         }
1380                         MEM_freeN(*mat);
1381                         *mat= lmat;
1382                 }
1383         }
1384 }
1385
1386 /* ************ READ ID Properties *************** */
1387
1388 void IDP_DirectLinkProperty(IDProperty *prop, int switch_endian, FileData *fd);
1389 void IDP_LibLinkProperty(IDProperty *prop, int switch_endian, FileData *fd);
1390
1391 static void IDP_DirectLinkIDPArray(IDProperty *prop, int switch_endian, FileData *fd)
1392 {
1393         IDProperty *array;
1394         int i;
1395
1396         /*since we didn't save the extra buffer, set totallen to len.*/
1397         prop->totallen = prop->len;
1398         prop->data.pointer = newdataadr(fd, prop->data.pointer);
1399
1400         array= (IDProperty*) prop->data.pointer;
1401
1402         /* note!, idp-arrays didn't exist in 2.4x, so the pointer will be cleared
1403          * theres not really anything we can do to correct this, at least dont crash */
1404         if(array==NULL) {
1405                 prop->len= 0;
1406                 prop->totallen= 0;
1407         }
1408
1409
1410         for(i=0; i<prop->len; i++)
1411                 IDP_DirectLinkProperty(&array[i], switch_endian, fd);
1412 }
1413
1414 static void IDP_DirectLinkArray(IDProperty *prop, int switch_endian, FileData *fd)
1415 {
1416         IDProperty **array;
1417         int i;
1418
1419         /*since we didn't save the extra buffer, set totallen to len.*/
1420         prop->totallen = prop->len;
1421         prop->data.pointer = newdataadr(fd, prop->data.pointer);
1422
1423         if(prop->subtype == IDP_GROUP) {
1424                 test_pointer_array(fd, prop->data.pointer);
1425                 array= prop->data.pointer;
1426
1427                 for(i=0; i<prop->len; i++)
1428                         IDP_DirectLinkProperty(array[i], switch_endian, fd);
1429         }
1430         else if(prop->subtype == IDP_DOUBLE) {
1431                 if (switch_endian) {
1432                         for (i=0; i<prop->len; i++) {
1433                                 SWITCH_LONGINT(((double*)prop->data.pointer)[i]);
1434                         }
1435                 }
1436         }
1437         else {
1438                 if (switch_endian) {
1439                         for (i=0; i<prop->len; i++) {
1440                                 SWITCH_INT(((int*)prop->data.pointer)[i]);
1441                         }
1442                 }
1443         }
1444 }
1445
1446 static void IDP_DirectLinkString(IDProperty *prop, int switch_endian, FileData *fd)
1447 {
1448         /*since we didn't save the extra string buffer, set totallen to len.*/
1449         prop->totallen = prop->len;
1450         prop->data.pointer = newdataadr(fd, prop->data.pointer);
1451 }
1452
1453 static void IDP_DirectLinkGroup(IDProperty *prop, int switch_endian, FileData *fd)
1454 {
1455         ListBase *lb = &prop->data.group;
1456         IDProperty *loop;
1457
1458         link_list(fd, lb);
1459
1460         /*Link child id properties now*/
1461         for (loop=prop->data.group.first; loop; loop=loop->next) {
1462                 IDP_DirectLinkProperty(loop, switch_endian, fd);
1463         }
1464 }
1465
1466 void IDP_DirectLinkProperty(IDProperty *prop, int switch_endian, FileData *fd)
1467 {
1468         switch (prop->type) {
1469                 case IDP_GROUP:
1470                         IDP_DirectLinkGroup(prop, switch_endian, fd);
1471                         break;
1472                 case IDP_STRING:
1473                         IDP_DirectLinkString(prop, switch_endian, fd);
1474                         break;
1475                 case IDP_ARRAY:
1476                         IDP_DirectLinkArray(prop, switch_endian, fd);
1477                         break;
1478                 case IDP_IDPARRAY:
1479                         IDP_DirectLinkIDPArray(prop, switch_endian, fd);
1480                         break;
1481                 case IDP_DOUBLE:
1482                         /*erg, stupid doubles.  since I'm storing them
1483                          in the same field as int val; val2 in the
1484                          IDPropertyData struct, they have to deal with
1485                          endianness specifically
1486
1487                          in theory, val and val2 would've already been swapped
1488                          if switch_endian is true, so we have to first unswap
1489                          them then reswap them as a single 64-bit entity.
1490                          */
1491
1492                         if (switch_endian) {
1493                                 SWITCH_INT(prop->data.val);
1494                                 SWITCH_INT(prop->data.val2);
1495                                 SWITCH_LONGINT(prop->data.val);
1496                         }
1497
1498                         break;
1499         }
1500 }
1501
1502 /*stub function*/
1503 void IDP_LibLinkProperty(IDProperty *prop, int switch_endian, FileData *fd)
1504 {
1505 }
1506
1507 /* ************ READ CurveMapping *************** */
1508
1509 /* cuma itself has been read! */
1510 static void direct_link_curvemapping(FileData *fd, CurveMapping *cumap)
1511 {
1512         int a;
1513
1514         /* flag seems to be able to hang? Maybe old files... not bad to clear anyway */
1515         cumap->flag &= ~CUMA_PREMULLED;
1516
1517         for(a=0; a<CM_TOT; a++) {
1518                 cumap->cm[a].curve= newdataadr(fd, cumap->cm[a].curve);
1519                 cumap->cm[a].table= NULL;
1520                 cumap->cm[a].premultable= NULL;
1521         }
1522 }
1523
1524 /* ************ READ Brush *************** */
1525 /* library brush linking after fileread */
1526 static void lib_link_brush(FileData *fd, Main *main)
1527 {
1528         Brush *brush;
1529
1530         /* only link ID pointers */
1531         for(brush= main->brush.first; brush; brush= brush->id.next) {
1532                 if(brush->id.flag & LIB_NEEDLINK) {
1533                         brush->id.flag -= LIB_NEEDLINK;
1534
1535                         brush->mtex.tex= newlibadr_us(fd, brush->id.lib, brush->mtex.tex);
1536                         brush->clone.image= newlibadr_us(fd, brush->id.lib, brush->clone.image);
1537                 }
1538         }
1539 }
1540
1541 static void direct_link_brush(FileData *fd, Brush *brush)
1542 {
1543         /* brush itself has been read */
1544
1545         /* fallof curve */
1546         brush->curve= newdataadr(fd, brush->curve);
1547         if(brush->curve)
1548                 direct_link_curvemapping(fd, brush->curve);
1549         else
1550                 brush_curve_preset(brush, CURVE_PRESET_SHARP);
1551
1552         brush->preview= NULL;
1553         brush->icon_imbuf= NULL;
1554 }
1555
1556 static void direct_link_script(FileData *fd, Script *script)
1557 {
1558         script->id.us = 1;
1559         SCRIPT_SET_NULL(script)
1560 }
1561
1562
1563 /* ************ READ PACKEDFILE *************** */
1564
1565 static PackedFile *direct_link_packedfile(FileData *fd, PackedFile *oldpf)
1566 {
1567         PackedFile *pf= newdataadr(fd, oldpf);
1568
1569         if (pf) {
1570                 pf->data= newdataadr(fd, pf->data);
1571         }
1572
1573         return pf;
1574 }
1575
1576 /* ************ READ IMAGE PREVIEW *************** */
1577
1578 static PreviewImage *direct_link_preview_image(FileData *fd, PreviewImage *old_prv)
1579 {
1580         PreviewImage *prv= newdataadr(fd, old_prv);
1581
1582         if (prv) {
1583                 int i;
1584                 for (i=0; i < PREVIEW_MIPMAPS; ++i) {
1585                         if (prv->rect[i]) {
1586                                 prv->rect[i] = newdataadr(fd, prv->rect[i]);
1587                         }
1588                 }
1589         }
1590
1591         return prv;
1592 }
1593
1594 /* ************ READ ANIMATION STUFF ***************** */
1595
1596 /* Legacy Data Support (for Version Patching) ----------------------------- */
1597
1598 // XXX depreceated - old animation system
1599 static void lib_link_ipo(FileData *fd, Main *main)
1600 {
1601         Ipo *ipo;
1602
1603         ipo= main->ipo.first;
1604         while(ipo) {
1605                 if(ipo->id.flag & LIB_NEEDLINK) {
1606                         IpoCurve *icu;
1607                         for(icu= ipo->curve.first; icu; icu= icu->next) {
1608                                 if(icu->driver)
1609                                         icu->driver->ob= newlibadr(fd, ipo->id.lib, icu->driver->ob);
1610                         }
1611                         ipo->id.flag -= LIB_NEEDLINK;
1612                 }
1613                 ipo= ipo->id.next;
1614         }
1615 }
1616
1617 // XXX depreceated - old animation system
1618 static void direct_link_ipo(FileData *fd, Ipo *ipo)
1619 {
1620         IpoCurve *icu;
1621
1622         link_list(fd, &(ipo->curve));
1623         icu= ipo->curve.first;
1624         while(icu) {
1625                 icu->bezt= newdataadr(fd, icu->bezt);
1626                 icu->bp= newdataadr(fd, icu->bp);
1627                 icu->driver= newdataadr(fd, icu->driver);
1628                 icu= icu->next;
1629         }
1630 }
1631
1632 // XXX depreceated - old animation system
1633 static void lib_link_nlastrips(FileData *fd, ID *id, ListBase *striplist)
1634 {
1635         bActionStrip *strip;
1636         bActionModifier *amod;
1637
1638         for (strip=striplist->first; strip; strip=strip->next){
1639                 strip->object = newlibadr(fd, id->lib, strip->object);
1640                 strip->act = newlibadr_us(fd, id->lib, strip->act);
1641                 strip->ipo = newlibadr(fd, id->lib, strip->ipo);
1642                 for(amod= strip->modifiers.first; amod; amod= amod->next)
1643                         amod->ob= newlibadr(fd, id->lib, amod->ob);
1644         }
1645 }
1646
1647 // XXX depreceated - old animation system
1648 static void direct_link_nlastrips(FileData *fd, ListBase *strips)
1649 {
1650         bActionStrip *strip;
1651
1652         link_list(fd, strips);
1653
1654         for(strip= strips->first; strip; strip= strip->next)
1655                 link_list(fd, &strip->modifiers);
1656 }
1657
1658 // XXX depreceated - old animation system
1659 static void lib_link_constraint_channels(FileData *fd, ID *id, ListBase *chanbase)
1660 {
1661         bConstraintChannel *chan;
1662
1663         for (chan=chanbase->first; chan; chan=chan->next){
1664                 chan->ipo = newlibadr_us(fd, id->lib, chan->ipo);
1665         }
1666 }
1667
1668 /* Data Linking ----------------------------- */
1669
1670 static void lib_link_fmodifiers(FileData *fd, ID *id, ListBase *list)
1671 {
1672         FModifier *fcm;
1673
1674         for (fcm= list->first; fcm; fcm= fcm->next) {
1675                 /* data for specific modifiers */
1676                 switch (fcm->type) {
1677                         case FMODIFIER_TYPE_PYTHON:
1678                         {
1679                                 FMod_Python *data= (FMod_Python *)fcm->data;
1680                                 data->script = newlibadr(fd, id->lib, data->script);
1681                         }
1682                                 break;
1683                 }
1684         }
1685 }
1686
1687 static void lib_link_fcurves(FileData *fd, ID *id, ListBase *list)
1688 {
1689         FCurve *fcu;
1690
1691         if (list == NULL)
1692                 return;
1693
1694         /* relink ID-block references... */
1695         for (fcu= list->first; fcu; fcu= fcu->next) {
1696                 /* driver data */
1697                 if (fcu->driver) {
1698                         ChannelDriver *driver= fcu->driver;
1699                         DriverVar *dvar;
1700
1701                         for (dvar= driver->variables.first; dvar; dvar= dvar->next) {
1702                                 DRIVER_TARGETS_LOOPER(dvar)
1703                                 {
1704                                         /* only relink if still used */
1705                                         if (tarIndex < dvar->num_targets)
1706                                                 dtar->id= newlibadr(fd, id->lib, dtar->id);
1707                                         else
1708                                                 dtar->id= NULL;
1709                                 }
1710                                 DRIVER_TARGETS_LOOPER_END
1711                         }
1712                 }
1713
1714                 /* modifiers */
1715                 lib_link_fmodifiers(fd, id, &fcu->modifiers);
1716         }
1717 }
1718
1719
1720 /* NOTE: this assumes that link_list has already been called on the list */
1721 static void direct_link_fmodifiers(FileData *fd, ListBase *list)
1722 {
1723         FModifier *fcm;
1724
1725         for (fcm= list->first; fcm; fcm= fcm->next) {
1726                 /* relink general data */
1727                 fcm->data = newdataadr(fd, fcm->data);
1728                 fcm->edata= NULL;
1729
1730                 /* do relinking of data for specific types */
1731                 switch (fcm->type) {
1732                         case FMODIFIER_TYPE_GENERATOR:
1733                         {
1734                                 FMod_Generator *data= (FMod_Generator *)fcm->data;
1735
1736                                 data->coefficients= newdataadr(fd, data->coefficients);
1737                         }
1738                                 break;
1739                         case FMODIFIER_TYPE_ENVELOPE:
1740                         {
1741                                 FMod_Envelope *data= (FMod_Envelope *)fcm->data;
1742
1743                                 data->data= newdataadr(fd, data->data);
1744                         }
1745                                 break;
1746                         case FMODIFIER_TYPE_PYTHON:
1747                         {
1748                                 FMod_Python *data= (FMod_Python *)fcm->data;
1749
1750                                 data->prop = newdataadr(fd, data->prop);
1751                                 IDP_DirectLinkProperty(data->prop, (fd->flags & FD_FLAGS_SWITCH_ENDIAN), fd);
1752                         }
1753                                 break;
1754                 }
1755         }
1756 }
1757
1758 /* NOTE: this assumes that link_list has already been called on the list */
1759 static void direct_link_fcurves(FileData *fd, ListBase *list)
1760 {
1761         FCurve *fcu;
1762
1763         /* link F-Curve data to F-Curve again (non ID-libs) */
1764         for (fcu= list->first; fcu; fcu= fcu->next) {
1765                 /* curve data */
1766                 fcu->bezt= newdataadr(fd, fcu->bezt);
1767                 fcu->fpt= newdataadr(fd, fcu->fpt);
1768
1769                 /* rna path */
1770                 fcu->rna_path= newdataadr(fd, fcu->rna_path);
1771
1772                 /* group */
1773                 fcu->grp= newdataadr(fd, fcu->grp);
1774
1775                 /* driver */
1776                 fcu->driver= newdataadr(fd, fcu->driver);
1777                 if (fcu->driver) {
1778                         ChannelDriver *driver= fcu->driver;
1779                         DriverVar *dvar;
1780
1781                         driver->expr_comp= NULL;
1782
1783                         /* relink variables, targets and their paths */
1784                         link_list(fd, &driver->variables);
1785                         for (dvar= driver->variables.first; dvar; dvar= dvar->next) {
1786                                 DRIVER_TARGETS_LOOPER(dvar)
1787                                 {
1788                                         /* only relink the targets being used */
1789                                         if (tarIndex < dvar->num_targets)
1790                                                 dtar->rna_path= newdataadr(fd, dtar->rna_path);
1791                                         else
1792                                                 dtar->rna_path= NULL;
1793                                 }
1794                                 DRIVER_TARGETS_LOOPER_END
1795                         }
1796                 }
1797
1798                 /* modifiers */
1799                 link_list(fd, &fcu->modifiers);
1800                 direct_link_fmodifiers(fd, &fcu->modifiers);
1801         }
1802 }
1803
1804
1805 static void lib_link_action(FileData *fd, Main *main)
1806 {
1807         bAction *act;
1808         bActionChannel *chan;
1809
1810         for (act= main->action.first; act; act= act->id.next) {
1811                 if (act->id.flag & LIB_NEEDLINK) {
1812                         act->id.flag -= LIB_NEEDLINK;
1813
1814 // XXX depreceated - old animation system <<<
1815                         for (chan=act->chanbase.first; chan; chan=chan->next) {
1816                                 chan->ipo= newlibadr_us(fd, act->id.lib, chan->ipo);
1817                                 lib_link_constraint_channels(fd, &act->id, &chan->constraintChannels);
1818                         }
1819 // >>> XXX depreceated - old animation system
1820
1821                         lib_link_fcurves(fd, &act->id, &act->curves);
1822                 }
1823         }
1824 }
1825
1826 static void direct_link_action(FileData *fd, bAction *act)
1827 {
1828         bActionChannel *achan; // XXX depreceated - old animation system
1829         bActionGroup *agrp;
1830
1831         link_list(fd, &act->curves);
1832         link_list(fd, &act->chanbase); // XXX depreceated - old animation system
1833         link_list(fd, &act->groups);
1834         link_list(fd, &act->markers);
1835
1836 // XXX depreceated - old animation system <<<
1837         for (achan = act->chanbase.first; achan; achan=achan->next) {
1838                 achan->grp= newdataadr(fd, achan->grp);
1839
1840                 link_list(fd, &achan->constraintChannels);
1841         }
1842 // >>> XXX depreceated - old animation system
1843
1844         direct_link_fcurves(fd, &act->curves);
1845
1846         for (agrp = act->groups.first; agrp; agrp= agrp->next) {
1847                 agrp->channels.first= newdataadr(fd, agrp->channels.first);
1848                 agrp->channels.last= newdataadr(fd, agrp->channels.last);
1849         }
1850 }
1851
1852 static void lib_link_nladata_strips(FileData *fd, ID *id, ListBase *list)
1853 {
1854         NlaStrip *strip;
1855
1856         for (strip= list->first; strip; strip= strip->next) {
1857                 /* check strip's children */
1858                 lib_link_nladata_strips(fd, id, &strip->strips);
1859
1860                 /* check strip's F-Curves */
1861                 lib_link_fcurves(fd, id, &strip->fcurves);
1862
1863                 /* reassign the counted-reference to action */
1864                 strip->act = newlibadr_us(fd, id->lib, strip->act);
1865         }
1866 }
1867
1868 static void lib_link_nladata(FileData *fd, ID *id, ListBase *list)
1869 {
1870         NlaTrack *nlt;
1871
1872         /* we only care about the NLA strips inside the tracks */
1873         for (nlt= list->first; nlt; nlt= nlt->next) {
1874                 lib_link_nladata_strips(fd, id, &nlt->strips);
1875         }
1876 }
1877
1878 /* This handles Animato NLA-Strips linking
1879  * NOTE: this assumes that link_list has already been called on the list
1880  */
1881 static void direct_link_nladata_strips(FileData *fd, ListBase *list)
1882 {
1883         NlaStrip *strip;
1884
1885         for (strip= list->first; strip; strip= strip->next) {
1886                 /* strip's child strips */
1887                 link_list(fd, &strip->strips);
1888                 direct_link_nladata_strips(fd, &strip->strips);
1889
1890                 /* strip's F-Curves */
1891                 link_list(fd, &strip->fcurves);
1892                 direct_link_fcurves(fd, &strip->fcurves);
1893
1894                 /* strip's F-Modifiers */
1895                 link_list(fd, &strip->modifiers);
1896                 direct_link_fcurves(fd, &strip->modifiers);
1897         }
1898 }
1899
1900 /* NOTE: this assumes that link_list has already been called on the list */
1901 static void direct_link_nladata(FileData *fd, ListBase *list)
1902 {
1903         NlaTrack *nlt;
1904
1905         for (nlt= list->first; nlt; nlt= nlt->next) {
1906                 /* relink list of strips */
1907                 link_list(fd, &nlt->strips);
1908
1909                 /* relink strip data */
1910                 direct_link_nladata_strips(fd, &nlt->strips);
1911         }
1912 }
1913
1914 /* ------- */
1915
1916 static void lib_link_keyingsets(FileData *fd, ID *id, ListBase *list)
1917 {
1918         KeyingSet *ks;
1919         KS_Path *ksp;
1920
1921         /* here, we're only interested in the ID pointer stored in some of the paths */
1922         for (ks= list->first; ks; ks= ks->next) {
1923                 for (ksp= ks->paths.first; ksp; ksp= ksp->next) {
1924                         ksp->id= newlibadr(fd, id->lib, ksp->id);
1925                 }
1926         }
1927 }
1928
1929 /* NOTE: this assumes that link_list has already been called on the list */
1930 static void direct_link_keyingsets(FileData *fd, ListBase *list)
1931 {
1932         KeyingSet *ks;
1933         KS_Path *ksp;
1934
1935         /* link KeyingSet data to KeyingSet again (non ID-libs) */
1936         for (ks= list->first; ks; ks= ks->next) {
1937                 /* paths */
1938                 link_list(fd, &ks->paths);
1939
1940                 for (ksp= ks->paths.first; ksp; ksp= ksp->next) {
1941                         /* rna path */
1942                         ksp->rna_path= newdataadr(fd, ksp->rna_path);
1943                 }
1944         }
1945 }
1946
1947 /* ------- */
1948
1949 static void lib_link_animdata(FileData *fd, ID *id, AnimData *adt)
1950 {
1951         if (adt == NULL)
1952                 return;
1953
1954         /* link action data */
1955         adt->action= newlibadr_us(fd, id->lib, adt->action);
1956         adt->tmpact= newlibadr_us(fd, id->lib, adt->tmpact);
1957
1958         /* link drivers */
1959         lib_link_fcurves(fd, id, &adt->drivers);
1960
1961         /* overrides don't have lib-link for now, so no need to do anything */
1962
1963         /* link NLA-data */
1964         lib_link_nladata(fd, id, &adt->nla_tracks);
1965 }
1966
1967 static void direct_link_animdata(FileData *fd, AnimData *adt)
1968 {
1969         /* NOTE: must have called newdataadr already before doing this... */
1970         if (adt == NULL)
1971                 return;
1972
1973         /* link drivers */
1974         link_list(fd, &adt->drivers);
1975         direct_link_fcurves(fd, &adt->drivers);
1976
1977         /* link overrides */
1978         // TODO...
1979
1980         /* link NLA-data */
1981         link_list(fd, &adt->nla_tracks);
1982         direct_link_nladata(fd, &adt->nla_tracks);
1983
1984         /* clear temp pointers that may have been set... */
1985         // TODO: it's probably only a small cost to reload this anyway...
1986         adt->actstrip= NULL;
1987 }
1988
1989 /* ************ READ MOTION PATHS *************** */
1990
1991 /* direct data for cache */
1992 static void direct_link_motionpath(FileData *fd, bMotionPath *mpath)
1993 {
1994         /* sanity check */
1995         if (mpath == NULL)
1996                 return;
1997
1998         /* relink points cache */
1999         mpath->points= newdataadr(fd, mpath->points);
2000 }
2001
2002 /* ************ READ NODE TREE *************** */
2003
2004 /* singe node tree (also used for material/scene trees), ntree is not NULL */
2005 static void lib_link_ntree(FileData *fd, ID *id, bNodeTree *ntree)
2006 {
2007         bNode *node;
2008
2009         if(ntree->adt) lib_link_animdata(fd, &ntree->id, ntree->adt);
2010
2011         ntree->gpd= newlibadr_us(fd, id->lib, ntree->gpd);
2012
2013         for(node= ntree->nodes.first; node; node= node->next)
2014                 node->id= newlibadr_us(fd, id->lib, node->id);
2015 }
2016
2017 /* library ntree linking after fileread */
2018 static void lib_link_nodetree(FileData *fd, Main *main)
2019 {
2020         bNodeTree *ntree;
2021
2022         /* only link ID pointers */
2023         for(ntree= main->nodetree.first; ntree; ntree= ntree->id.next) {
2024                 if(ntree->id.flag & LIB_NEEDLINK) {
2025                         ntree->id.flag -= LIB_NEEDLINK;
2026                         lib_link_ntree(fd, &ntree->id, ntree);
2027                 }
2028         }
2029 }
2030
2031 /* verify types for nodes and groups, all data has to be read */
2032 /* open = 0: appending/linking, open = 1: open new file (need to clean out dynamic
2033 * typedefs*/
2034 static void lib_verify_nodetree(Main *main, int open)
2035 {
2036         Scene *sce;
2037         Material *ma;
2038         Tex *tx;
2039         bNodeTree *ntree;
2040
2041         /* this crashes blender on undo/redo
2042                 if(open==1) {
2043                         reinit_nodesystem();
2044                 }*/
2045
2046         /* now create the own typeinfo structs an verify nodes */
2047         /* here we still assume no groups in groups */
2048         for(ntree= main->nodetree.first; ntree; ntree= ntree->id.next) {
2049                 ntreeVerifyTypes(ntree);        /* internal nodes, no groups! */
2050                 ntreeMakeOwnType(ntree);        /* for group usage */
2051         }
2052
2053         /* now verify all types in material trees, groups are set OK now */
2054         for(ma= main->mat.first; ma; ma= ma->id.next) {
2055                 if(ma->nodetree)
2056                         ntreeVerifyTypes(ma->nodetree);
2057         }
2058         /* and scene trees */
2059         for(sce= main->scene.first; sce; sce= sce->id.next) {
2060                 if(sce->nodetree)
2061                         ntreeVerifyTypes(sce->nodetree);
2062         }
2063         /* and texture trees */
2064         for(tx= main->tex.first; tx; tx= tx->id.next) {
2065                 if(tx->nodetree)
2066                         ntreeVerifyTypes(tx->nodetree);
2067         }
2068 }
2069
2070
2071
2072 /* ntree itself has been read! */
2073 static void direct_link_nodetree(FileData *fd, bNodeTree *ntree)
2074 {
2075         /* note: writing and reading goes in sync, for speed */
2076         bNode *node;
2077         bNodeSocket *sock;
2078         bNodeLink *link;
2079
2080         ntree->init= 0;         /* to set callbacks and force setting types */
2081         ntree->owntype= NULL;
2082         ntree->progress= NULL;
2083
2084         ntree->adt= newdataadr(fd, ntree->adt);
2085         direct_link_animdata(fd, ntree->adt);
2086
2087         link_list(fd, &ntree->nodes);
2088         for(node= ntree->nodes.first; node; node= node->next) {
2089                 if(node->type == NODE_DYNAMIC) {
2090                         node->custom1= 0;
2091                         node->custom1= BSET(node->custom1, NODE_DYNAMIC_LOADED);
2092                         node->typeinfo= NULL;
2093                 }
2094
2095                 node->storage= newdataadr(fd, node->storage);
2096                 if(node->storage) {
2097
2098                         /* could be handlerized at some point */
2099                         if(ntree->type==NTREE_SHADER && (node->type==SH_NODE_CURVE_VEC || node->type==SH_NODE_CURVE_RGB))
2100                                 direct_link_curvemapping(fd, node->storage);
2101                         else if(ntree->type==NTREE_COMPOSIT) {
2102                                 if( ELEM4(node->type, CMP_NODE_TIME, CMP_NODE_CURVE_VEC, CMP_NODE_CURVE_RGB, CMP_NODE_HUECORRECT))
2103                                         direct_link_curvemapping(fd, node->storage);
2104                                 else if(ELEM3(node->type, CMP_NODE_IMAGE, CMP_NODE_VIEWER, CMP_NODE_SPLITVIEWER))
2105                                         ((ImageUser *)node->storage)->ok= 1;
2106                         }
2107                         else if( ntree->type==NTREE_TEXTURE && (node->type==TEX_NODE_CURVE_RGB || node->type==TEX_NODE_CURVE_TIME) ) {
2108                                 direct_link_curvemapping(fd, node->storage);
2109                         }
2110                 }
2111                 link_list(fd, &node->inputs);
2112                 link_list(fd, &node->outputs);
2113         }
2114         link_list(fd, &ntree->links);
2115
2116         /* and we connect the rest */
2117         for(node= ntree->nodes.first; node; node= node->next) {
2118                 node->preview= newimaadr(fd, node->preview);
2119                 node->lasty= 0;
2120                 for(sock= node->inputs.first; sock; sock= sock->next)
2121                         sock->link= newdataadr(fd, sock->link);
2122                 for(sock= node->outputs.first; sock; sock= sock->next)
2123                         sock->ns.data= NULL;
2124         }
2125         for(link= ntree->links.first; link; link= link->next) {
2126                 link->fromnode= newdataadr(fd, link->fromnode);
2127                 link->tonode= newdataadr(fd, link->tonode);
2128                 link->fromsock= newdataadr(fd, link->fromsock);
2129                 link->tosock= newdataadr(fd, link->tosock);
2130         }
2131
2132         /* type verification is in lib-link */
2133 }
2134
2135 /* ************ READ ARMATURE ***************** */
2136
2137 /* temp struct used to transport needed info to lib_link_constraint_cb() */
2138 typedef struct tConstraintLinkData {
2139         FileData *fd;
2140         ID *id;
2141 } tConstraintLinkData;
2142 /* callback function used to relink constraint ID-links */
2143 static void lib_link_constraint_cb(bConstraint *con, ID **idpoin, void *userdata)
2144 {
2145         tConstraintLinkData *cld= (tConstraintLinkData *)userdata;
2146         *idpoin = newlibadr(cld->fd, cld->id->lib, *idpoin);
2147 }
2148
2149 static void lib_link_constraints(FileData *fd, ID *id, ListBase *conlist)
2150 {
2151         tConstraintLinkData cld;
2152         bConstraint *con;
2153
2154         /* legacy fixes */
2155         for (con = conlist->first; con; con=con->next) {
2156                 /* patch for error introduced by changing constraints (dunno how) */
2157                 /* if con->data type changes, dna cannot resolve the pointer! (ton) */
2158                 if(con->data==NULL) {
2159                         con->type= CONSTRAINT_TYPE_NULL;
2160                 }
2161                 /* own ipo, all constraints have it */
2162                 con->ipo= newlibadr_us(fd, id->lib, con->ipo); // XXX depreceated - old animation system
2163         }
2164
2165         /* relink all ID-blocks used by the constraints */
2166         cld.fd= fd;
2167         cld.id= id;
2168
2169         id_loop_constraints(conlist, lib_link_constraint_cb, &cld);
2170 }
2171
2172 static void direct_link_constraints(FileData *fd, ListBase *lb)
2173 {
2174         bConstraint *con;
2175
2176         link_list(fd, lb);
2177         for (con=lb->first; con; con=con->next) {
2178                 con->data = newdataadr(fd, con->data);
2179
2180                 switch (con->type) {
2181                         case CONSTRAINT_TYPE_PYTHON:
2182                         {
2183                                 bPythonConstraint *data= con->data;
2184
2185                                 link_list(fd, &data->targets);
2186
2187                                 data->prop = newdataadr(fd, data->prop);
2188                                 if (data->prop)
2189                                         IDP_DirectLinkProperty(data->prop, (fd->flags & FD_FLAGS_SWITCH_ENDIAN), fd);
2190                         }
2191                                 break;
2192                         case CONSTRAINT_TYPE_SPLINEIK:
2193                         {
2194                                 bSplineIKConstraint *data= con->data;
2195
2196                                 data->points= newdataadr(fd, data->points);
2197                         }
2198                                 break;
2199                         case CONSTRAINT_TYPE_KINEMATIC:
2200                         {
2201                                 con->lin_error = 0.f;
2202                                 con->rot_error = 0.f;
2203                         }
2204                                 break;
2205                 }
2206         }
2207 }
2208
2209 static void lib_link_pose(FileData *fd, Object *ob, bPose *pose)
2210 {
2211         bPoseChannel *pchan;
2212         bArmature *arm= ob->data;
2213         int rebuild;
2214
2215         if (!pose || !arm)
2216                 return;
2217
2218         /* always rebuild to match proxy or lib changes */
2219         rebuild= ob->proxy || (ob->id.lib==NULL && arm->id.lib);
2220
2221         if (ob->proxy && pose->proxy_act_bone[0]) {
2222                 Bone *bone = get_named_bone(arm, pose->proxy_act_bone);
2223                 if (bone)
2224                         arm->act_bone = bone;
2225         }
2226
2227         for (pchan = pose->chanbase.first; pchan; pchan=pchan->next) {
2228                 lib_link_constraints(fd, (ID *)ob, &pchan->constraints);
2229
2230                 /* hurms... loop in a loop, but yah... later... (ton) */
2231                 pchan->bone= get_named_bone(arm, pchan->name);
2232
2233                 pchan->custom= newlibadr(fd, arm->id.lib, pchan->custom);
2234                 if(pchan->bone==NULL)
2235                         rebuild= 1;
2236                 else if(ob->id.lib==NULL && arm->id.lib) {
2237                         /* local pose selection copied to armature, bit hackish */
2238                         pchan->bone->flag &= ~BONE_SELECTED;
2239                         pchan->bone->flag |= pchan->selectflag;
2240                 }
2241         }
2242
2243         if(rebuild) {
2244                 ob->recalc= OB_RECALC_ALL;
2245                 pose->flag |= POSE_RECALC;
2246         }
2247 }
2248
2249 static void lib_link_armature(FileData *fd, Main *main)
2250 {
2251         bArmature *arm;
2252
2253         arm= main->armature.first;
2254
2255         while(arm) {
2256                 if(arm->id.flag & LIB_NEEDLINK) {
2257                         if (arm->adt) lib_link_animdata(fd, &arm->id, arm->adt);
2258                         arm->id.flag -= LIB_NEEDLINK;
2259                 }
2260                 arm= arm->id.next;
2261         }
2262 }
2263
2264 static void direct_link_bones(FileData *fd, Bone* bone)
2265 {
2266         Bone    *child;
2267
2268         bone->parent= newdataadr(fd, bone->parent);
2269         bone->prop= newdataadr(fd, bone->prop);
2270         if(bone->prop)
2271                 IDP_DirectLinkProperty(bone->prop, (fd->flags & FD_FLAGS_SWITCH_ENDIAN), fd);
2272
2273         bone->flag &= ~BONE_DRAW_ACTIVE;
2274
2275         link_list(fd, &bone->childbase);
2276
2277         for(child=bone->childbase.first; child; child=child->next)
2278                 direct_link_bones(fd, child);
2279 }
2280
2281 static void direct_link_armature(FileData *fd, bArmature *arm)
2282 {
2283         Bone    *bone;
2284
2285         link_list(fd, &arm->bonebase);
2286         arm->edbo= NULL;
2287         arm->sketch = NULL;
2288
2289         arm->adt= newdataadr(fd, arm->adt);
2290         direct_link_animdata(fd, arm->adt);
2291
2292         bone=arm->bonebase.first;
2293         while (bone) {
2294                 direct_link_bones(fd, bone);
2295                 bone=bone->next;
2296         }
2297
2298         arm->act_bone= newdataadr(fd, arm->act_bone);
2299         arm->act_edbone= NULL;
2300 }
2301
2302 /* ************ READ CAMERA ***************** */
2303
2304 static void lib_link_camera(FileData *fd, Main *main)
2305 {
2306         Camera *ca;
2307
2308         ca= main->camera.first;
2309         while(ca) {
2310                 if(ca->id.flag & LIB_NEEDLINK) {
2311                         if (ca->adt) lib_link_animdata(fd, &ca->id, ca->adt);
2312
2313                         ca->ipo= newlibadr_us(fd, ca->id.lib, ca->ipo); // XXX depreceated - old animation system
2314
2315                         ca->dof_ob= newlibadr_us(fd, ca->id.lib, ca->dof_ob);
2316
2317                         ca->id.flag -= LIB_NEEDLINK;
2318                 }
2319                 ca= ca->id.next;
2320         }
2321 }
2322
2323 static void direct_link_camera(FileData *fd, Camera *ca)
2324 {
2325         ca->adt= newdataadr(fd, ca->adt);
2326         direct_link_animdata(fd, ca->adt);
2327 }
2328
2329
2330 /* ************ READ LAMP ***************** */
2331
2332 static void lib_link_lamp(FileData *fd, Main *main)
2333 {
2334         Lamp *la;
2335         MTex *mtex;
2336         int a;
2337
2338         la= main->lamp.first;
2339         while(la) {
2340                 if(la->id.flag & LIB_NEEDLINK) {
2341                         if (la->adt) lib_link_animdata(fd, &la->id, la->adt);
2342
2343                         for(a=0; a<MAX_MTEX; a++) {
2344                                 mtex= la->mtex[a];
2345                                 if(mtex) {
2346                                         mtex->tex= newlibadr_us(fd, la->id.lib, mtex->tex);
2347                                         mtex->object= newlibadr(fd, la->id.lib, mtex->object);
2348                                 }
2349                         }
2350
2351                         la->ipo= newlibadr_us(fd, la->id.lib, la->ipo); // XXX depreceated - old animation system
2352
2353                         la->id.flag -= LIB_NEEDLINK;
2354                 }
2355                 la= la->id.next;
2356         }
2357 }
2358
2359 static void direct_link_lamp(FileData *fd, Lamp *la)
2360 {
2361         int a;
2362
2363         la->adt= newdataadr(fd, la->adt);
2364         direct_link_animdata(fd, la->adt);
2365
2366         for(a=0; a<MAX_MTEX; a++) {
2367                 la->mtex[a]= newdataadr(fd, la->mtex[a]);
2368         }
2369
2370         la->curfalloff= newdataadr(fd, la->curfalloff);
2371         if(la->curfalloff)
2372                 direct_link_curvemapping(fd, la->curfalloff);
2373
2374         la->preview = direct_link_preview_image(fd, la->preview);
2375 }
2376
2377 /* ************ READ keys ***************** */
2378
2379 static void lib_link_key(FileData *fd, Main *main)
2380 {
2381         Key *key;
2382
2383         key= main->key.first;
2384         while(key) {
2385                 if(key->id.flag & LIB_NEEDLINK) {
2386                         if(key->adt) lib_link_animdata(fd, &key->id, key->adt);
2387
2388                         key->ipo= newlibadr_us(fd, key->id.lib, key->ipo); // XXX depreceated - old animation system
2389                         key->from= newlibadr(fd, key->id.lib, key->from);
2390
2391                         key->id.flag -= LIB_NEEDLINK;
2392                 }
2393                 key= key->id.next;
2394         }
2395 }
2396
2397 static void switch_endian_keyblock(Key *key, KeyBlock *kb)
2398 {
2399         int elemsize, a, b;
2400         char *data, *poin, *cp;
2401
2402         elemsize= key->elemsize;
2403         data= kb->data;
2404
2405         for(a=0; a<kb->totelem; a++) {
2406
2407                 cp= key->elemstr;
2408                 poin= data;
2409
2410                 while( cp[0] ) {        /* cp[0]==amount */
2411
2412                         switch(cp[1]) {         /* cp[1]= type */
2413                         case IPO_FLOAT:
2414                         case IPO_BPOINT:
2415                         case IPO_BEZTRIPLE:
2416                                 b= cp[0];
2417                                 while(b--) {
2418                                         SWITCH_INT((*poin));
2419                                         poin+= 4;
2420                                 }
2421                                 break;
2422                         }
2423
2424                         cp+= 2;
2425
2426                 }
2427                 data+= elemsize;
2428         }
2429 }
2430
2431 static void direct_link_key(FileData *fd, Key *key)
2432 {
2433         KeyBlock *kb;
2434
2435         link_list(fd, &(key->block));
2436
2437         key->adt= newdataadr(fd, key->adt);
2438         direct_link_animdata(fd, key->adt);
2439
2440         key->refkey= newdataadr(fd, key->refkey);
2441
2442         kb= key->block.first;
2443         while(kb) {
2444
2445                 kb->data= newdataadr(fd, kb->data);
2446
2447                 if(fd->flags & FD_FLAGS_SWITCH_ENDIAN)
2448                         switch_endian_keyblock(key, kb);
2449
2450                 kb= kb->next;
2451         }
2452 }
2453
2454 /* ************ READ mball ***************** */
2455
2456 static void lib_link_mball(FileData *fd, Main *main)
2457 {
2458         MetaBall *mb;
2459         int a;
2460
2461         mb= main->mball.first;
2462         while(mb) {
2463                 if(mb->id.flag & LIB_NEEDLINK) {
2464                         if (mb->adt) lib_link_animdata(fd, &mb->id, mb->adt);
2465
2466                         for(a=0; a<mb->totcol; a++) mb->mat[a]= newlibadr_us(fd, mb->id.lib, mb->mat[a]);
2467
2468                         mb->ipo= newlibadr_us(fd, mb->id.lib, mb->ipo); // XXX depreceated - old animation system
2469
2470                         mb->id.flag -= LIB_NEEDLINK;
2471                 }
2472                 mb= mb->id.next;
2473         }
2474 }
2475
2476 static void direct_link_mball(FileData *fd, MetaBall *mb)
2477 {
2478         mb->adt= newdataadr(fd, mb->adt);
2479         direct_link_animdata(fd, mb->adt);
2480
2481         mb->mat= newdataadr(fd, mb->mat);
2482         test_pointer_array(fd, (void **)&mb->mat);
2483
2484         link_list(fd, &(mb->elems));
2485
2486         mb->disp.first= mb->disp.last= NULL;
2487         mb->editelems= NULL;
2488         mb->bb= NULL;
2489 /*      mb->edit_elems.first= mb->edit_elems.last= NULL;*/
2490         mb->lastelem= NULL;
2491 }
2492
2493 /* ************ READ WORLD ***************** */
2494
2495 static void lib_link_world(FileData *fd, Main *main)
2496 {
2497         World *wrld;
2498         MTex *mtex;
2499         int a;
2500
2501         wrld= main->world.first;
2502         while(wrld) {
2503                 if(wrld->id.flag & LIB_NEEDLINK) {
2504                         if (wrld->adt) lib_link_animdata(fd, &wrld->id, wrld->adt);
2505
2506                         wrld->ipo= newlibadr_us(fd, wrld->id.lib, wrld->ipo); // XXX depreceated - old animation system
2507
2508                         for(a=0; a<MAX_MTEX; a++) {
2509                                 mtex= wrld->mtex[a];
2510                                 if(mtex) {
2511                                         mtex->tex= newlibadr_us(fd, wrld->id.lib, mtex->tex);
2512                                         mtex->object= newlibadr(fd, wrld->id.lib, mtex->object);
2513                                 }
2514                         }
2515
2516                         wrld->id.flag -= LIB_NEEDLINK;
2517                 }
2518                 wrld= wrld->id.next;
2519         }
2520 }
2521
2522 static void direct_link_world(FileData *fd, World *wrld)
2523 {
2524         int a;
2525
2526         wrld->adt= newdataadr(fd, wrld->adt);
2527         direct_link_animdata(fd, wrld->adt);
2528
2529         for(a=0; a<MAX_MTEX; a++) {
2530                 wrld->mtex[a]= newdataadr(fd, wrld->mtex[a]);
2531         }
2532         wrld->preview = direct_link_preview_image(fd, wrld->preview);
2533 }
2534
2535
2536 /* ************ READ VFONT ***************** */
2537
2538 static void lib_link_vfont(FileData *fd, Main *main)
2539 {
2540         VFont *vf;
2541
2542         vf= main->vfont.first;
2543         while(vf) {
2544                 if(vf->id.flag & LIB_NEEDLINK) {
2545                         vf->id.flag -= LIB_NEEDLINK;
2546                 }
2547                 vf= vf->id.next;
2548         }
2549 }
2550
2551 static void direct_link_vfont(FileData *fd, VFont *vf)
2552 {
2553         vf->data= NULL;
2554         vf->packedfile= direct_link_packedfile(fd, vf->packedfile);
2555 }
2556
2557 /* ************ READ TEXT ****************** */
2558
2559 static void lib_link_text(FileData *fd, Main *main)
2560 {
2561         Text *text;
2562
2563         text= main->text.first;
2564         while(text) {
2565                 if(text->id.flag & LIB_NEEDLINK) {
2566                         text->id.flag -= LIB_NEEDLINK;
2567                 }
2568                 text= text->id.next;
2569         }
2570 }
2571
2572 static void direct_link_text(FileData *fd, Text *text)
2573 {
2574         TextLine *ln;
2575
2576         text->name= newdataadr(fd, text->name);
2577
2578         text->undo_pos= -1;
2579         text->undo_len= TXT_INIT_UNDO;
2580         text->undo_buf= MEM_mallocN(text->undo_len, "undo buf");
2581
2582         text->compiled= NULL;
2583
2584 /*
2585         if(text->flags & TXT_ISEXT) {
2586                 reopen_text(text);
2587         } else {
2588 */
2589
2590         link_list(fd, &text->lines);
2591         link_list(fd, &text->markers);
2592
2593         text->curl= newdataadr(fd, text->curl);
2594         text->sell= newdataadr(fd, text->sell);
2595
2596         ln= text->lines.first;
2597         while(ln) {
2598                 ln->line= newdataadr(fd, ln->line);
2599                 ln->format= NULL;
2600
2601                 if (ln->len != (int) strlen(ln->line)) {
2602                         printf("Error loading text, line lengths differ\n");
2603                         ln->len = strlen(ln->line);
2604                 }
2605
2606                 ln= ln->next;
2607         }
2608
2609         text->flags = (text->flags) & ~TXT_ISEXT;
2610
2611         text->id.us= 1;
2612 }
2613
2614 /* ************ READ IMAGE ***************** */
2615
2616 static void lib_link_image(FileData *fd, Main *main)
2617 {
2618         Image *ima;
2619
2620         ima= main->image.first;
2621         while (ima) {
2622                 if(ima->id.flag & LIB_NEEDLINK) {
2623                         if (ima->id.properties) IDP_LibLinkProperty(ima->id.properties, (fd->flags & FD_FLAGS_SWITCH_ENDIAN), fd);
2624
2625                         ima->id.flag -= LIB_NEEDLINK;
2626                 }
2627                 ima= ima->id.next;
2628         }
2629 }
2630
2631 static void link_ibuf_list(FileData *fd, ListBase *lb)
2632 {
2633         Link *ln, *prev;
2634
2635         if(lb->first==NULL) return;
2636
2637         lb->first= newimaadr(fd, lb->first);
2638         ln= lb->first;
2639         prev= NULL;
2640         while(ln) {
2641                 ln->next= newimaadr(fd, ln->next);
2642                 ln->prev= prev;
2643                 prev= ln;
2644                 ln= ln->next;
2645         }
2646         lb->last= prev;
2647 }
2648
2649 static void direct_link_image(FileData *fd, Image *ima)
2650 {
2651         /* for undo system, pointers could be restored */
2652         if(fd->imamap)
2653                 link_ibuf_list(fd, &ima->ibufs);
2654         else
2655                 ima->ibufs.first= ima->ibufs.last= NULL;
2656
2657         /* if not restored, we keep the binded opengl index */
2658         if(ima->ibufs.first==NULL) {
2659                 ima->bindcode= 0;
2660                 ima->gputexture= NULL;
2661         }
2662
2663         ima->anim= NULL;
2664         ima->rr= NULL;
2665         ima->repbind= NULL;
2666         memset(ima->renders, 0, sizeof(ima->renders));
2667         ima->last_render_slot= ima->render_slot;
2668
2669         ima->packedfile = direct_link_packedfile(fd, ima->packedfile);
2670         ima->preview = direct_link_preview_image(fd, ima->preview);
2671         ima->ok= 1;
2672 }
2673
2674
2675 /* ************ READ CURVE ***************** */
2676
2677 static void lib_link_curve(FileData *fd, Main *main)
2678 {
2679         Curve *cu;
2680         int a;
2681
2682         cu= main->curve.first;
2683         while(cu) {
2684                 if(cu->id.flag & LIB_NEEDLINK) {
2685                         if(cu->adt) lib_link_animdata(fd, &cu->id, cu->adt);
2686
2687                         for(a=0; a<cu->totcol; a++) cu->mat[a]= newlibadr_us(fd, cu->id.lib, cu->mat[a]);
2688
2689                         cu->bevobj= newlibadr(fd, cu->id.lib, cu->bevobj);
2690                         cu->taperobj= newlibadr(fd, cu->id.lib, cu->taperobj);
2691                         cu->textoncurve= newlibadr(fd, cu->id.lib, cu->textoncurve);
2692                         cu->vfont= newlibadr_us(fd, cu->id.lib, cu->vfont);
2693                         cu->vfontb= newlibadr_us(fd, cu->id.lib, cu->vfontb);
2694                         cu->vfonti= newlibadr_us(fd, cu->id.lib, cu->vfonti);
2695                         cu->vfontbi= newlibadr_us(fd, cu->id.lib, cu->vfontbi);
2696
2697                         cu->ipo= newlibadr_us(fd, cu->id.lib, cu->ipo); // XXX depreceated - old animation system
2698                         cu->key= newlibadr_us(fd, cu->id.lib, cu->key);
2699
2700                         cu->id.flag -= LIB_NEEDLINK;
2701                 }
2702                 cu= cu->id.next;
2703         }
2704 }
2705
2706
2707 static void switch_endian_knots(Nurb *nu)
2708 {
2709         int len;
2710
2711         if(nu->knotsu) {
2712                 len= KNOTSU(nu);
2713                 while(len--) {
2714                         SWITCH_INT(nu->knotsu[len]);
2715                 }
2716         }
2717         if(nu->knotsv) {
2718                 len= KNOTSV(nu);
2719                 while(len--) {
2720                         SWITCH_INT(nu->knotsv[len]);
2721                 }
2722         }
2723 }
2724
2725 static void direct_link_curve(FileData *fd, Curve *cu)
2726 {
2727         Nurb *nu;
2728         TextBox *tb;
2729
2730         cu->adt= newdataadr(fd, cu->adt);
2731         direct_link_animdata(fd, cu->adt);
2732
2733         cu->mat= newdataadr(fd, cu->mat);
2734         test_pointer_array(fd, (void **)&cu->mat);
2735         cu->str= newdataadr(fd, cu->str);
2736         cu->strinfo= newdataadr(fd, cu->strinfo);
2737         cu->tb= newdataadr(fd, cu->tb);
2738
2739         if(cu->vfont == NULL) link_list(fd, &(cu->nurb));
2740         else {
2741                 cu->nurb.first=cu->nurb.last= 0;
2742
2743                 tb= MEM_callocN(MAXTEXTBOX*sizeof(TextBox), "TextBoxread");
2744                 if (cu->tb) {
2745                         memcpy(tb, cu->tb, cu->totbox*sizeof(TextBox));
2746                         MEM_freeN(cu->tb);
2747                         cu->tb= tb;
2748                 } else {
2749                         cu->totbox = 1;
2750                         cu->actbox = 1;
2751                         cu->tb = tb;
2752                         cu->tb[0].w = cu->linewidth;
2753                 }
2754                 if (cu->wordspace == 0.0) cu->wordspace = 1.0;
2755         }
2756
2757         cu->bev.first=cu->bev.last= NULL;
2758         cu->disp.first=cu->disp.last= NULL;
2759         cu->editnurb= NULL;
2760         cu->lastsel= NULL;
2761         cu->path= NULL;
2762         cu->editfont= NULL;
2763
2764         nu= cu->nurb.first;
2765         while(nu) {
2766                 nu->bezt= newdataadr(fd, nu->bezt);
2767                 nu->bp= newdataadr(fd, nu->bp);
2768                 nu->knotsu= newdataadr(fd, nu->knotsu);
2769                 nu->knotsv= newdataadr(fd, nu->knotsv);
2770                 if (cu->vfont == NULL) nu->charidx= nu->mat_nr;
2771
2772                 if(fd->flags & FD_FLAGS_SWITCH_ENDIAN) {
2773                         switch_endian_knots(nu);
2774                 }
2775
2776                 nu= nu->next;
2777         }
2778         cu->bb= NULL;
2779 }
2780
2781 /* ************ READ TEX ***************** */
2782
2783 static void lib_link_texture(FileData *fd, Main *main)
2784 {
2785         Tex *tex;
2786
2787         tex= main->tex.first;
2788         while(tex) {
2789                 if(tex->id.flag & LIB_NEEDLINK) {
2790                         if(tex->adt) lib_link_animdata(fd, &tex->id, tex->adt);
2791
2792                         tex->ima= newlibadr_us(fd, tex->id.lib, tex->ima);
2793                         tex->ipo= newlibadr_us(fd, tex->id.lib, tex->ipo);
2794                         if(tex->env) tex->env->object= newlibadr(fd, tex->id.lib, tex->env->object);
2795                         if(tex->pd)
2796                                 tex->pd->object= newlibadr(fd, tex->id.lib, tex->pd->object);
2797                         if(tex->vd) tex->vd->object= newlibadr(fd, tex->id.lib, tex->vd->object);
2798
2799                         if(tex->nodetree)
2800                                 lib_link_ntree(fd, &tex->id, tex->nodetree);
2801
2802                         tex->id.flag -= LIB_NEEDLINK;
2803                 }
2804                 tex= tex->id.next;
2805         }
2806 }
2807
2808 static void direct_link_texture(FileData *fd, Tex *tex)
2809 {
2810         tex->adt= newdataadr(fd, tex->adt);
2811         direct_link_animdata(fd, tex->adt);
2812
2813         tex->plugin= newdataadr(fd, tex->plugin);
2814         if(tex->plugin) {
2815                 tex->plugin->handle= 0;
2816                 open_plugin_tex(tex->plugin);
2817                 /* initialize data for this instance, if an initialization
2818                  * function exists.
2819                  */
2820                 if (tex->plugin->instance_init)
2821                         tex->plugin->instance_init((void *) tex->plugin->data);
2822         }
2823         tex->coba= newdataadr(fd, tex->coba);
2824         tex->env= newdataadr(fd, tex->env);
2825         if(tex->env) {
2826                 tex->env->ima= NULL;
2827                 memset(tex->env->cube, 0, 6*sizeof(void *));
2828                 tex->env->ok= 0;
2829         }
2830         tex->pd= newdataadr(fd, tex->pd);
2831         if(tex->pd) {
2832                 tex->pd->point_tree = NULL;
2833                 tex->pd->coba= newdataadr(fd, tex->pd->coba);
2834         }
2835
2836         tex->vd= newdataadr(fd, tex->vd);
2837         if(tex->vd) {
2838                 tex->vd->dataset = NULL;
2839                 tex->vd->ok = 0;
2840         }
2841
2842         tex->nodetree= newdataadr(fd, tex->nodetree);
2843         if(tex->nodetree)
2844                 direct_link_nodetree(fd, tex->nodetree);
2845
2846         tex->preview = direct_link_preview_image(fd, tex->preview);
2847
2848         tex->iuser.ok= 1;
2849 }
2850
2851
2852
2853 /* ************ READ MATERIAL ***************** */
2854
2855 static void lib_link_material(FileData *fd, Main *main)
2856 {
2857         Material *ma;
2858         MTex *mtex;
2859         int a;
2860
2861         ma= main->mat.first;
2862         while(ma) {
2863                 if(ma->id.flag & LIB_NEEDLINK) {
2864                         if(ma->adt) lib_link_animdata(fd, &ma->id, ma->adt);
2865
2866                         /*Link ID Properties -- and copy this comment EXACTLY for easy finding
2867                         of library blocks that implement this.*/
2868                         if (ma->id.properties) IDP_LibLinkProperty(ma->id.properties, (fd->flags & FD_FLAGS_SWITCH_ENDIAN), fd);
2869
2870                         ma->ipo= newlibadr_us(fd, ma->id.lib, ma->ipo);
2871                         ma->group= newlibadr_us(fd, ma->id.lib, ma->group);
2872
2873                         for(a=0; a<MAX_MTEX; a++) {
2874                                 mtex= ma->mtex[a];
2875                                 if(mtex) {
2876                                         mtex->tex= newlibadr_us(fd, ma->id.lib, mtex->tex);
2877                                         mtex->object= newlibadr(fd, ma->id.lib, mtex->object);
2878                                 }
2879                         }
2880
2881                         if(ma->nodetree)
2882                                 lib_link_ntree(fd, &ma->id, ma->nodetree);
2883
2884                         ma->id.flag -= LIB_NEEDLINK;
2885                 }
2886                 ma= ma->id.next;
2887         }
2888 }
2889
2890 static void direct_link_material(FileData *fd, Material *ma)
2891 {
2892         int a;
2893
2894         ma->adt= newdataadr(fd, ma->adt);
2895         direct_link_animdata(fd, ma->adt);
2896
2897         for(a=0; a<MAX_MTEX; a++) {
2898                 ma->mtex[a]= newdataadr(fd, ma->mtex[a]);
2899         }
2900
2901         ma->ramp_col= newdataadr(fd, ma->ramp_col);
2902         ma->ramp_spec= newdataadr(fd, ma->ramp_spec);
2903
2904         ma->nodetree= newdataadr(fd, ma->nodetree);
2905         if(ma->nodetree)
2906                 direct_link_nodetree(fd, ma->nodetree);
2907
2908         ma->preview = direct_link_preview_image(fd, ma->preview);
2909         ma->gpumaterial.first = ma->gpumaterial.last = NULL;
2910 }
2911
2912 /* ************ READ PARTICLE SETTINGS ***************** */
2913
2914 static void direct_link_pointcache(FileData *fd, PointCache *cache)
2915 {
2916         if((cache->flag & PTCACHE_DISK_CACHE)==0) {
2917                 PTCacheMem *pm;
2918                 int i;
2919
2920                 link_list(fd, &cache->mem_cache);
2921
2922                 pm = cache->mem_cache.first;
2923
2924                 for(; pm; pm=pm->next) {
2925                         if(pm->index_array)
2926                                 pm->index_array = newdataadr(fd, pm->index_array);
2927
2928                         for(i=0; i<BPHYS_TOT_DATA; i++) {
2929                                 if(pm->data[i] && pm->data_types & (1<<i))
2930                                         pm->data[i] = newdataadr(fd, pm->data[i]);
2931                         }
2932                 }
2933         }
2934         else
2935                 cache->mem_cache.first = cache->mem_cache.last = NULL;
2936
2937         cache->flag &= ~PTCACHE_SIMULATION_VALID;
2938         cache->simframe= 0;
2939         cache->edit= NULL;
2940         cache->free_edit= NULL;
2941         cache->cached_frames= NULL;
2942 }
2943
2944 static void direct_link_pointcache_list(FileData *fd, ListBase *ptcaches, PointCache **ocache)
2945 {
2946         PointCache *cache;
2947
2948         if(ptcaches->first) {
2949                 link_list(fd, ptcaches);
2950                 for(cache=ptcaches->first; cache; cache=cache->next)
2951                         direct_link_pointcache(fd, cache);
2952
2953                 *ocache = newdataadr(fd, *ocache);
2954         }
2955         else if(*ocache) {
2956                 /* old "single" caches need to be linked too */
2957                 *ocache = newdataadr(fd, *ocache);
2958                 direct_link_pointcache(fd, *ocache);
2959
2960                 ptcaches->first = ptcaches->last = *ocache;
2961         }
2962 }
2963
2964 void lib_link_partdeflect(FileData *fd, ID *id, PartDeflect *pd)
2965 {
2966         if(pd && pd->tex)
2967                 pd->tex=newlibadr_us(fd, id->lib, pd->tex);
2968 }
2969
2970 static void lib_link_particlesettings(FileData *fd, Main *main)
2971 {
2972         ParticleSettings *part;
2973         ParticleDupliWeight *dw;
2974
2975         part= main->particle.first;
2976         while(part) {
2977                 if(part->id.flag & LIB_NEEDLINK) {
2978                         if (part->adt) lib_link_animdata(fd, &part->id, part->adt);
2979                         part->ipo= newlibadr_us(fd, part->id.lib, part->ipo); // XXX depreceated - old animation system
2980
2981                         part->dup_ob = newlibadr(fd, part->id.lib, part->dup_ob);
2982                         part->dup_group = newlibadr(fd, part->id.lib, part->dup_group);
2983                         part->eff_group = newlibadr(fd, part->id.lib, part->eff_group);
2984                         part->bb_ob = newlibadr(fd, part->id.lib, part->bb_ob);
2985
2986                         lib_link_partdeflect(fd, &part->id, part->pd);
2987                         lib_link_partdeflect(fd, &part->id, part->pd2);
2988
2989                         if(part->effector_weights)
2990                                 part->effector_weights->group = newlibadr(fd, part->id.lib, part->effector_weights->group);
2991
2992                         dw = part->dupliweights.first;
2993                         for(; dw; dw=dw->next)
2994                                 dw->ob = newlibadr(fd, part->id.lib, dw->ob);
2995
2996                         if(part->boids) {
2997                                 BoidState *state = part->boids->states.first;
2998                                 BoidRule *rule;
2999                                 for(; state; state=state->next) {
3000                                         rule = state->rules.first;
3001                                 for(; rule; rule=rule->next)
3002                                         switch(rule->type) {
3003                                                 case eBoidRuleType_Goal:
3004                                                 case eBoidRuleType_Avoid:
3005                                                 {
3006                                                         BoidRuleGoalAvoid *brga = (BoidRuleGoalAvoid*)rule;
3007                                                         brga->ob = newlibadr(fd, part->id.lib, brga->ob);
3008                                                         break;
3009                                                 }
3010                                                 case eBoidRuleType_FollowLeader:
3011                                                 {
3012                                                         BoidRuleFollowLeader *brfl = (BoidRuleFollowLeader*)rule;
3013                                                         brfl->ob = newlibadr(fd, part->id.lib, brfl->ob);
3014                                                         break;
3015                                                 }
3016                                         }
3017                                 }
3018                         }
3019                         part->id.flag -= LIB_NEEDLINK;
3020                 }
3021                 part= part->id.next;
3022         }
3023 }
3024
3025 static void direct_link_partdeflect(PartDeflect *pd)
3026 {
3027         if(pd) pd->rng=NULL;
3028 }
3029
3030 static void direct_link_particlesettings(FileData *fd, ParticleSettings *part)
3031 {
3032         part->adt= newdataadr(fd, part->adt);
3033         part->pd= newdataadr(fd, part->pd);
3034         part->pd2= newdataadr(fd, part->pd2);
3035
3036         direct_link_animdata(fd, part->adt);
3037         direct_link_partdeflect(part->pd);
3038         direct_link_partdeflect(part->pd2);
3039
3040         part->effector_weights = newdataadr(fd, part->effector_weights);
3041         if(!part->effector_weights)
3042                 part->effector_weights = BKE_add_effector_weights(part->eff_group);
3043
3044         link_list(fd, &part->dupliweights);
3045
3046         part->boids= newdataadr(fd, part->boids);
3047         part->fluid= newdataadr(fd, part->fluid);
3048
3049         if(part->boids) {
3050                 BoidState *state;
3051                 link_list(fd, &part->boids->states);
3052
3053                 for(state=part->boids->states.first; state; state=state->next) {
3054                         link_list(fd, &state->rules);
3055                         link_list(fd, &state->conditions);
3056                         link_list(fd, &state->actions);
3057                 }
3058         }
3059 }
3060
3061 static void lib_link_particlesystems(FileData *fd, Object *ob, ID *id, ListBase *particles)
3062 {
3063         ParticleSystem *psys, *psysnext;
3064
3065         for(psys=particles->first; psys; psys=psysnext){
3066                 psysnext= psys->next;
3067
3068                 psys->part = newlibadr_us(fd, id->lib, psys->part);
3069                 if(psys->part) {
3070                         ParticleTarget *pt = psys->targets.first;
3071
3072                         for(; pt; pt=pt->next)
3073                                 pt->ob=newlibadr(fd, id->lib, pt->ob);
3074
3075                         psys->parent= newlibadr_us(fd, id->lib, psys->parent);
3076                         psys->target_ob = newlibadr(fd, id->lib, psys->target_ob);
3077
3078                         if(psys->clmd) {
3079                                 /* XXX - from reading existing code this seems correct but intended usage of
3080                                  * pointcache should /w cloth should be added in 'ParticleSystem' - campbell */
3081                                 psys->clmd->point_cache= psys->pointcache;
3082                                 psys->clmd->ptcaches.first= psys->clmd->ptcaches.last= NULL;
3083                                 psys->clmd->coll_parms->group= newlibadr(fd, id->lib, psys->clmd->coll_parms->group);
3084                         }
3085                 }
3086                 else {
3087                         /* particle modifier must be removed before particle system */
3088                         ParticleSystemModifierData *psmd= psys_get_modifier(ob,psys);
3089                         BLI_remlink(&ob->modifiers, psmd);
3090                         modifier_free((ModifierData *)psmd);
3091
3092                         BLI_remlink(particles, psys);
3093                         MEM_freeN(psys);
3094                 }
3095         }
3096 }
3097 static void direct_link_particlesystems(FileData *fd, ListBase *particles)
3098 {
3099         ParticleSystem *psys;
3100         ParticleData *pa;
3101         int a;
3102
3103         for(psys=particles->first; psys; psys=psys->next) {
3104                 psys->particles=newdataadr(fd,psys->particles);
3105
3106                 if(psys->particles && psys->particles->hair){
3107                         for(a=0,pa=psys->particles; a<psys->totpart; a++, pa++)
3108                                 pa->hair=newdataadr(fd,pa->hair);
3109                 }
3110
3111                 if(psys->particles && psys->particles->keys){
3112                         for(a=0,pa=psys->particles; a<psys->totpart; a++, pa++) {
3113                                 pa->keys= NULL;
3114                                 pa->totkey= 0;
3115                         }
3116
3117                         psys->flag &= ~PSYS_KEYED;
3118                 }
3119
3120                 if(psys->particles && psys->particles->boid) {
3121                         pa = psys->particles;
3122                         pa->boid = newdataadr(fd, pa->boid);
3123                         for(a=1,pa++; a<psys->totpart; a++, pa++)
3124                                 pa->boid = (pa-1)->boid + 1;
3125                 }
3126                 else {
3127                         for(a=0,pa=psys->particles; a<psys->totpart; a++, pa++)
3128                                 pa->boid = NULL;
3129                 }
3130
3131
3132                 psys->child = newdataadr(fd,psys->child);
3133                 psys->effectors = NULL;
3134
3135                 link_list(fd, &psys->targets);
3136
3137                 psys->edit = NULL;
3138                 psys->free_edit = NULL;
3139                 psys->pathcache = NULL;
3140                 psys->childcache = NULL;
3141                 psys->pathcachebufs.first = psys->pathcachebufs.last = NULL;
3142                 psys->childcachebufs.first = psys->childcachebufs.last = NULL;
3143                 psys->frand = NULL;
3144                 psys->pdd = NULL;
3145
3146                 direct_link_pointcache_list(fd, &psys->ptcaches, &psys->pointcache);
3147
3148                 if(psys->clmd) {
3149                         psys->clmd = newdataadr(fd, psys->clmd);
3150                         psys->clmd->clothObject = NULL;
3151
3152                         psys->clmd->sim_parms= newdataadr(fd, psys->clmd->sim_parms);
3153                         psys->clmd->sim_parms->effector_weights = NULL;
3154                         psys->clmd->coll_parms= newdataadr(fd, psys->clmd->coll_parms);
3155
3156                         if(psys->clmd->sim_parms) {
3157                                 if(psys->clmd->sim_parms->presets > 10)
3158                                         psys->clmd->sim_parms->presets = 0;
3159                         }
3160
3161                         psys->hair_in_dm = psys->hair_out_dm = NULL;
3162
3163                         psys->clmd->point_cache = psys->pointcache;
3164                 }
3165
3166                 psys->tree = NULL;
3167         }
3168         return;
3169 }
3170
3171 /* ************ READ MESH ***************** */
3172
3173 static void lib_link_mtface(FileData *fd, Mesh *me, MTFace *mtface, int totface)
3174 {
3175         MTFace *tf= mtface;
3176         int i;
3177
3178         for (i=0; i<totface; i++, tf++) {
3179                 tf->tpage= newlibadr(fd, me->id.lib, tf->tpage);
3180                 if(tf->tpage && tf->tpage->id.us==0)
3181                         tf->tpage->id.us= 1;
3182         }
3183 }
3184
3185 static void lib_link_customdata_mtface(FileData *fd, Mesh *me, CustomData *fdata, int totface)
3186 {
3187         int i;
3188         for(i=0; i<fdata->totlayer; i++) {
3189                 CustomDataLayer *layer = &fdata->layers[i];
3190
3191                 if(layer->type == CD_MTFACE)
3192                         lib_link_mtface(fd, me, layer->data, totface);
3193         }
3194
3195 }
3196
3197 static void lib_link_mesh(FileData *fd, Main *main)
3198 {
3199         Mesh *me;
3200
3201         me= main->mesh.first;
3202         while(me) {
3203                 if(me->id.flag & LIB_NEEDLINK) {
3204                         int i;
3205
3206                         /*Link ID Properties -- and copy this comment EXACTLY for easy finding
3207                         of library blocks that implement this.*/
3208                         if (me->id.properties) IDP_LibLinkProperty(me->id.properties, (fd->flags & FD_FLAGS_SWITCH_ENDIAN), fd);
3209                         if (me->adt) lib_link_animdata(fd, &me->id, me->adt);
3210
3211                         /* this check added for python created meshes */
3212                         if(me->mat) {
3213                                 for(i=0; i<me->totcol; i++) {
3214                                         me->mat[i]= newlibadr_us(fd, me->id.lib, me->mat[i]);
3215                                 }
3216                         }
3217                         else me->totcol= 0;
3218
3219                         me->ipo= newlibadr_us(fd, me->id.lib, me->ipo);
3220                         me->key= newlibadr_us(fd, me->id.lib, me->key);
3221                         me->texcomesh= newlibadr_us(fd, me->id.lib, me->texcomesh);
3222
3223                         lib_link_customdata_mtface(fd, me, &me->fdata, me->totface);
3224                         if(me->mr && me->mr->levels.first)
3225                                 lib_link_customdata_mtface(fd, me, &me->mr->fdata,
3226                                                            ((MultiresLevel*)me->mr->levels.first)->totface);
3227
3228                         me->id.flag -= LIB_NEEDLINK;
3229                 }
3230                 me= me->id.next;
3231         }
3232 }
3233
3234 static void direct_link_dverts(FileData *fd, int count, MDeformVert *mdverts)
3235 {
3236         int     i;
3237
3238         if (!mdverts)
3239                 return;
3240
3241         for (i=0; i<count; i++) {
3242                 mdverts[i].dw=newdataadr(fd, mdverts[i].dw);
3243                 if (!mdverts[i].dw)
3244                         mdverts[i].totweight=0;
3245         }
3246 }
3247
3248 static void direct_link_mdisps(FileData *fd, int count, MDisps *mdisps, int external)
3249 {
3250         if(mdisps) {
3251                 int i;
3252
3253                 for(i = 0; i < count; ++i) {
3254                         mdisps[i].disps = newdataadr(fd, mdisps[i].disps);
3255                         if(!external && !mdisps[i].disps)
3256                                 mdisps[i].totdisp = 0;
3257                 }
3258         }
3259 }
3260
3261 static void direct_link_customdata(FileData *fd, CustomData *data, int count)
3262 {
3263         int i = 0;
3264
3265         data->layers= newdataadr(fd, data->layers);
3266         data->external= newdataadr(fd, data->external);
3267
3268         while (i < data->totlayer) {
3269                 CustomDataLayer *layer = &data->layers[i];
3270
3271                 if(layer->flag & CD_FLAG_EXTERNAL)
3272                         layer->flag &= ~CD_FLAG_IN_MEMORY;
3273
3274                 if (CustomData_verify_versions(data, i)) {
3275                         layer->data = newdataadr(fd, layer->data);
3276                         if(layer->type == CD_MDISPS)
3277                                 direct_link_mdisps(fd, count, layer->data, layer->flag & CD_FLAG_EXTERNAL);
3278                         i++;
3279                 }
3280         }
3281 }
3282
3283 static void direct_link_mesh(FileData *fd, Mesh *mesh)
3284 {
3285         mesh->mat= newdataadr(fd, mesh->mat);
3286         test_pointer_array(fd, (void **)&mesh->mat);
3287
3288         mesh->mvert= newdataadr(fd, mesh->mvert);
3289         mesh->medge= newdataadr(fd, mesh->medge);
3290         mesh->mface= newdataadr(fd, mesh->mface);
3291         mesh->tface= newdataadr(fd, mesh->tface);
3292