Smoke:
[blender.git] / source / blender / blenloader / intern / readfile.c
1 /*
2  * $Id$
3  *
4  * ***** BEGIN GPL LICENSE BLOCK *****
5  *
6  * This program is free software; you can redistribute it and/or
7  * modify it under the terms of the GNU General Public License
8  * as published by the Free Software Foundation; either version 2
9  * of the License, or (at your option) any later version.
10  *
11  * This program is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14  * GNU General Public License for more details.
15  *
16  * You should have received a copy of the GNU General Public License
17  * along with this program; if not, write to the Free Software Foundation,
18  * Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
19  *
20  * The Original Code is Copyright (C) 2001-2002 by NaN Holding BV.
21  * All rights reserved.
22  *
23  *
24  * Contributor(s): Blender Foundation
25  *
26  * ***** END GPL LICENSE BLOCK *****
27  *
28  */
29
30 #include "zlib.h"
31
32 #ifdef WIN32
33 #include "winsock2.h"
34 #include "BLI_winstuff.h"
35 #endif
36
37 #include <limits.h>
38 #include <stdio.h> // for printf fopen fwrite fclose sprintf FILE
39 #include <stdlib.h> // for getenv atoi
40 #include <fcntl.h> // for open
41 #include <string.h> // for strrchr strncmp strstr
42 #include <math.h> // for fabs
43
44 #ifndef WIN32
45     #include <unistd.h> // for read close
46     #include <sys/param.h> // for MAXPATHLEN
47 #else
48     #include <io.h> // for open close read
49 #endif
50
51 #include "DNA_anim_types.h"
52 #include "DNA_action_types.h"
53 #include "DNA_armature_types.h"
54 #include "DNA_ID.h"
55 #include "DNA_actuator_types.h"
56 #include "DNA_boid_types.h"
57 #include "DNA_brush_types.h"
58 #include "DNA_camera_types.h"
59 #include "DNA_cloth_types.h"
60 #include "DNA_color_types.h"
61 #include "DNA_controller_types.h"
62 #include "DNA_constraint_types.h"
63 #include "DNA_curve_types.h"
64 #include "DNA_customdata_types.h"
65 #include "DNA_effect_types.h"
66 #include "DNA_fileglobal_types.h"
67 #include "DNA_genfile.h"
68 #include "DNA_group_types.h"
69 #include "DNA_gpencil_types.h"
70 #include "DNA_ipo_types.h"
71 #include "DNA_image_types.h"
72 #include "DNA_key_types.h"
73 #include "DNA_lattice_types.h"
74 #include "DNA_lamp_types.h"
75 #include "DNA_meta_types.h"
76 #include "DNA_material_types.h"
77 #include "DNA_mesh_types.h"
78 #include "DNA_meshdata_types.h"
79 #include "DNA_modifier_types.h"
80 #include "DNA_nla_types.h"
81 #include "DNA_node_types.h"
82 #include "DNA_object_types.h"
83 #include "DNA_object_force.h"
84 #include "DNA_object_fluidsim.h" // NT
85 #include "DNA_outliner_types.h"
86 #include "DNA_object_force.h"
87 #include "DNA_packedFile_types.h"
88 #include "DNA_particle_types.h"
89 #include "DNA_property_types.h"
90 #include "DNA_text_types.h"
91 #include "DNA_view3d_types.h"
92 #include "DNA_screen_types.h"
93 #include "DNA_sensor_types.h"
94 #include "DNA_sdna_types.h"
95 #include "DNA_scene_types.h"
96 #include "DNA_sequence_types.h"
97 #include "DNA_smoke_types.h"
98 #include "DNA_sound_types.h"
99 #include "DNA_space_types.h"
100 #include "DNA_texture_types.h"
101 #include "DNA_userdef_types.h"
102 #include "DNA_vfont_types.h"
103 #include "DNA_world_types.h"
104 #include "DNA_windowmanager_types.h"
105
106 #include "MEM_guardedalloc.h"
107 #include "BLI_blenlib.h"
108 #include "BLI_arithb.h"
109 #include "BLI_storage_types.h" // for relname flags
110
111 #include "BKE_animsys.h"
112 #include "BKE_action.h"
113 #include "BKE_armature.h"
114 #include "BKE_brush.h"
115 #include "BKE_cdderivedmesh.h"
116 #include "BKE_cloth.h"
117 #include "BKE_colortools.h"
118 #include "BKE_constraint.h"
119 #include "BKE_curve.h"
120 #include "BKE_customdata.h"
121 #include "BKE_deform.h"
122 #include "BKE_depsgraph.h"
123 #include "BKE_effect.h" /* give_parteff */
124 #include "BKE_fcurve.h"
125 #include "BKE_global.h" // for G
126 #include "BKE_group.h"
127 #include "BKE_image.h"
128 #include "BKE_ipo.h" 
129 #include "BKE_key.h" //void set_four_ipo
130 #include "BKE_lattice.h"
131 #include "BKE_library.h" // for wich_libbase
132 #include "BKE_main.h" // for Main
133 #include "BKE_mesh.h" // for ME_ defines (patching)
134 #include "BKE_modifier.h"
135 #include "BKE_multires.h"
136 #include "BKE_node.h" // for tree type defines
137 #include "BKE_object.h"
138 #include "BKE_particle.h"
139 #include "BKE_pointcache.h"
140 #include "BKE_property.h" // for get_ob_property
141 #include "BKE_report.h"
142 #include "BKE_sca.h" // for init_actuator
143 #include "BKE_scene.h"
144 #include "BKE_softbody.h"       // sbNew()
145 #include "BKE_bullet.h"         // bsbNew()
146 #include "BKE_sculpt.h"
147 #include "BKE_sequence.h"
148 #include "BKE_texture.h" // for open_plugin_tex
149 #include "BKE_utildefines.h" // SWITCH_INT DATA ENDB DNA1 O_BINARY GLOB USER TEST REND
150 #include "BKE_idprop.h"
151
152 #include "BKE_sound.h"
153
154 //XXX #include "BIF_butspace.h" // badlevel, for do_versions, patching event codes
155 //XXX #include "BIF_filelist.h" // badlevel too, where to move this? - elubie
156 //XXX #include "BIF_previewrender.h" // bedlelvel, for struct RenderInfo
157 #include "BLO_readfile.h"
158 #include "BLO_undofile.h"
159 #include "BLO_readblenfile.h" // streaming read pipe, for BLO_readblenfile BLO_readblenfilememory
160
161 #include "readfile.h"
162
163 #include "PIL_time.h"
164
165 #include <errno.h>
166
167 /*
168  Remark: still a weak point is the newadress() function, that doesnt solve reading from
169  multiple files at the same time
170
171  (added remark: oh, i thought that was solved? will look at that... (ton)
172
173 READ
174 - Existing Library (Main) push or free
175 - allocate new Main
176 - load file
177 - read SDNA
178 - for each LibBlock
179         - read LibBlock
180         - if a Library
181                 - make a new Main
182                 - attach ID's to it
183         - else
184                 - read associated 'direct data'
185                 - link direct data (internal and to LibBlock)
186 - read FileGlobal
187 - read USER data, only when indicated (file is ~/.B.blend or .B25.blend)
188 - free file
189 - per Library (per Main)
190         - read file
191         - read SDNA
192         - find LibBlocks and attach IDs to Main
193                 - if external LibBlock
194                         - search all Main's
195                                 - or it's already read,
196                                 - or not read yet
197                                 - or make new Main
198         - per LibBlock
199                 - read recursive
200                 - read associated direct data
201                 - link direct data (internal and to LibBlock)
202         - free file
203 - per Library with unread LibBlocks
204         - read file
205         - read SDNA
206         - per LibBlock
207                - read recursive
208                - read associated direct data
209                - link direct data (internal and to LibBlock)
210         - free file
211 - join all Mains
212 - link all LibBlocks and indirect pointers to libblocks
213 - initialize FileGlobal and copy pointers to Global
214 */
215
216 /* also occurs in library.c */
217 /* GS reads the memory pointed at in a specific ordering. There are,
218  * however two definitions for it. I have jotted them down here, both,
219  * but I think the first one is actually used. The thing is that
220  * big-endian systems might read this the wrong way round. OTOH, we
221  * constructed the IDs that are read out with this macro explicitly as
222  * well. I expect we'll sort it out soon... */
223
224 /* from blendef: */
225 #define GS(a)   (*((short *)(a)))
226
227 /* from misc_util: flip the bytes from x  */
228 /*  #define GS(x) (((unsigned char *)(x))[0] << 8 | ((unsigned char *)(x))[1]) */
229
230 // only used here in readfile.c
231 #define SWITCH_LONGINT(a) { \
232     char s_i, *p_i; \
233     p_i= (char *)&(a);  \
234     s_i=p_i[0]; p_i[0]=p_i[7]; p_i[7]=s_i; \
235     s_i=p_i[1]; p_i[1]=p_i[6]; p_i[6]=s_i; \
236     s_i=p_i[2]; p_i[2]=p_i[5]; p_i[5]=s_i; \
237     s_i=p_i[3]; p_i[3]=p_i[4]; p_i[4]=s_i; }
238
239 /***/
240
241 typedef struct OldNew {
242         void *old, *newp;
243         int nr;
244 } OldNew;
245
246 typedef struct OldNewMap {
247         OldNew *entries;
248         int nentries, entriessize;
249         int sorted;
250         int lasthit;
251 } OldNewMap;
252
253
254 /* local prototypes */
255 static void *read_struct(FileData *fd, BHead *bh, char *blockname);
256
257
258 static OldNewMap *oldnewmap_new(void) 
259 {
260         OldNewMap *onm= MEM_callocN(sizeof(*onm), "OldNewMap");
261         
262         onm->entriessize= 1024;
263         onm->entries= MEM_mallocN(sizeof(*onm->entries)*onm->entriessize, "OldNewMap.entries");
264         
265         return onm;
266 }
267
268 static int verg_oldnewmap(const void *v1, const void *v2)
269 {
270         const struct OldNew *x1=v1, *x2=v2;
271         
272         if( x1->old > x2->old) return 1;
273         else if( x1->old < x2->old) return -1;
274         return 0;
275 }
276
277
278 static void oldnewmap_sort(FileData *fd) 
279 {
280         qsort(fd->libmap->entries, fd->libmap->nentries, sizeof(OldNew), verg_oldnewmap);
281         fd->libmap->sorted= 1;
282 }
283
284 /* nr is zero for data, and ID code for libdata */
285 static void oldnewmap_insert(OldNewMap *onm, void *oldaddr, void *newaddr, int nr) 
286 {
287         OldNew *entry;
288
289         if(oldaddr==NULL || newaddr==NULL) return;
290         
291         if (onm->nentries==onm->entriessize) {
292                 int osize= onm->entriessize;
293                 OldNew *oentries= onm->entries;
294
295                 onm->entriessize*= 2;
296                 onm->entries= MEM_mallocN(sizeof(*onm->entries)*onm->entriessize, "OldNewMap.entries");
297
298                 memcpy(onm->entries, oentries, sizeof(*oentries)*osize);
299                 MEM_freeN(oentries);
300         }
301
302         entry= &onm->entries[onm->nentries++];
303         entry->old= oldaddr;
304         entry->newp= newaddr;
305         entry->nr= nr;
306 }
307
308 static void *oldnewmap_lookup_and_inc(OldNewMap *onm, void *addr) 
309 {
310         int i;
311
312         if (onm->lasthit<onm->nentries-1) {
313                 OldNew *entry= &onm->entries[++onm->lasthit];
314
315                 if (entry->old==addr) {
316                         entry->nr++;
317                         return entry->newp;
318                 }
319         }
320
321         for (i=0; i<onm->nentries; i++) {
322                 OldNew *entry= &onm->entries[i];
323
324                 if (entry->old==addr) {
325                         onm->lasthit= i;
326
327                         entry->nr++;
328                         return entry->newp;
329                 }
330         }
331
332         return NULL;
333 }
334
335 /* for libdata, nr has ID code, no increment */
336 static void *oldnewmap_liblookup(OldNewMap *onm, void *addr, void *lib) 
337 {
338         int i;
339         
340         if(addr==NULL) return NULL;
341         
342         /* lasthit works fine for non-libdata, linking there is done in same sequence as writing */
343         if(onm->sorted) {
344                 OldNew entry_s, *entry;
345                 
346                 entry_s.old= addr;
347                 
348                 entry= bsearch(&entry_s, onm->entries, onm->nentries, sizeof(OldNew), verg_oldnewmap);
349                 if(entry) {
350                         ID *id= entry->newp;
351                         
352                         if (id && (!lib || id->lib)) {
353                                 return entry->newp;
354                         }
355                 }
356         }
357         
358         for (i=0; i<onm->nentries; i++) {
359                 OldNew *entry= &onm->entries[i];
360
361                 if (entry->old==addr) {
362                         ID *id= entry->newp;
363
364                         if (id && (!lib || id->lib)) {
365                                 return entry->newp;
366                         }
367                 }
368         }
369
370         return NULL;
371 }
372
373 static void oldnewmap_free_unused(OldNewMap *onm) 
374 {
375         int i;
376
377         for (i=0; i<onm->nentries; i++) {
378                 OldNew *entry= &onm->entries[i];
379                 if (entry->nr==0) {
380                         MEM_freeN(entry->newp);
381                         entry->newp= NULL;
382                 }
383         }
384 }
385
386 static void oldnewmap_clear(OldNewMap *onm) 
387 {
388         onm->nentries= 0;
389         onm->lasthit= 0;
390 }
391
392 static void oldnewmap_free(OldNewMap *onm) 
393 {
394         MEM_freeN(onm->entries);
395         MEM_freeN(onm);
396 }
397
398 /***/
399
400 static void read_libraries(FileData *basefd, ListBase *mainlist);
401
402 /* ************ help functions ***************** */
403
404 static void add_main_to_main(Main *mainvar, Main *from)
405 {
406         ListBase *lbarray[MAX_LIBARRAY], *fromarray[MAX_LIBARRAY];
407         int a;
408
409         a= set_listbasepointers(mainvar, lbarray);
410         a= set_listbasepointers(from, fromarray);
411         while(a--) {
412                 addlisttolist(lbarray[a], fromarray[a]);
413         }
414 }
415
416 void blo_join_main(ListBase *mainlist)
417 {
418         Main *tojoin, *mainl;
419         
420         
421         mainl= mainlist->first;
422         while ((tojoin= mainl->next)) {
423                 add_main_to_main(mainl, tojoin);
424                 BLI_remlink(mainlist, tojoin);
425                 MEM_freeN(tojoin);
426         }
427 }
428
429 static void split_libdata(ListBase *lb, Main *first)
430 {
431         ListBase *lbn;
432         ID *id, *idnext;
433         Main *mainvar;
434
435         id= lb->first;
436         while(id) {
437                 idnext= id->next;
438                 if(id->lib) {
439                         mainvar= first;
440                         while(mainvar) {
441                                 if(mainvar->curlib==id->lib) {
442                                         lbn= wich_libbase(mainvar, GS(id->name));
443                                         BLI_remlink(lb, id);
444                                         BLI_addtail(lbn, id);
445                                         break;
446                                 }
447                                 mainvar= mainvar->next;
448                         }
449                         if(mainvar==0) printf("error split_libdata\n");
450                 }
451                 id= idnext;
452         }
453 }
454
455 void blo_split_main(ListBase *mainlist, Main *main)
456 {
457         ListBase *lbarray[MAX_LIBARRAY];
458         Library *lib;
459         int i;
460
461         mainlist->first= mainlist->last= main;
462         main->next= NULL;
463
464         if(main->library.first==NULL)
465                 return;
466         
467         for (lib= main->library.first; lib; lib= lib->id.next) {
468                 Main *libmain= MEM_callocN(sizeof(Main), "libmain");
469                 libmain->curlib= lib;
470                 BLI_addtail(mainlist, libmain);
471         }
472
473         i= set_listbasepointers(main, lbarray);
474         while(i--)
475                 split_libdata(lbarray[i], main->next);
476 }
477
478 /* removes things like /blah/blah/../../blah/ etc, then writes in *name the full path */
479 static void cleanup_path(const char *relabase, char *name)
480 {
481         char filename[FILE_MAXFILE];
482         
483         BLI_splitdirstring(name, filename);
484         BLI_cleanup_dir(relabase, name);
485         strcat(name, filename);
486 }
487
488 static void read_file_version(FileData *fd, Main *main)
489 {
490         BHead *bhead;
491         
492         for (bhead= blo_firstbhead(fd); bhead; bhead= blo_nextbhead(fd, bhead)) {
493                 if (bhead->code==GLOB) {
494                         FileGlobal *fg= read_struct(fd, bhead, "Global");
495                         if(fg) {
496                                 main->subversionfile= fg->subversion;
497                                 main->minversionfile= fg->minversion;
498                                 main->minsubversionfile= fg->minsubversion;
499                                 MEM_freeN(fg);
500                         }
501                         else if (bhead->code==ENDB)
502                                 break;
503                 }
504         }
505 }
506
507
508 static Main *blo_find_main(FileData *fd, ListBase *mainlist, const char *name, const char *relabase)
509 {
510         Main *m;
511         Library *lib;
512         char name1[FILE_MAXDIR+FILE_MAXFILE];
513         
514         strncpy(name1, name, sizeof(name1)-1);
515         cleanup_path(relabase, name1);
516 //      printf("blo_find_main: original in  %s\n", name);
517 //      printf("blo_find_main: converted to %s\n", name1);
518
519         for (m= mainlist->first; m; m= m->next) {
520                 char *libname= (m->curlib)?m->curlib->filename:m->name;
521                 
522                 if (BLI_streq(name1, libname)) {
523                         if(G.f & G_DEBUG) printf("blo_find_main: found library %s\n", libname);
524                         return m;
525                 }
526         }
527
528         m= MEM_callocN(sizeof(Main), "find_main");
529         BLI_addtail(mainlist, m);
530
531         lib= alloc_libblock(&m->library, ID_LI, "lib");
532         strncpy(lib->name, name, sizeof(lib->name)-1);
533         BLI_strncpy(lib->filename, name1, sizeof(lib->filename));
534         
535         m->curlib= lib;
536         
537         read_file_version(fd, m);
538         
539         if(G.f & G_DEBUG) printf("blo_find_main: added new lib %s\n", name);
540         return m;
541 }
542
543
544 /* ************ FILE PARSING ****************** */
545
546 static void switch_endian_bh4(BHead4 *bhead)
547 {
548         /* the ID_.. codes */
549         if((bhead->code & 0xFFFF)==0) bhead->code >>=16;
550
551         if (bhead->code != ENDB) {
552                 SWITCH_INT(bhead->len);
553                 SWITCH_INT(bhead->SDNAnr);
554                 SWITCH_INT(bhead->nr);
555         }
556 }
557
558 static void switch_endian_bh8(BHead8 *bhead)
559 {
560         /* the ID_.. codes */
561         if((bhead->code & 0xFFFF)==0) bhead->code >>=16;
562
563         if (bhead->code != ENDB) {
564                 SWITCH_INT(bhead->len);
565                 SWITCH_INT(bhead->SDNAnr);
566                 SWITCH_INT(bhead->nr);
567         }
568 }
569
570 static void bh4_from_bh8(BHead *bhead, BHead8 *bhead8, int do_endian_swap)
571 {
572         BHead4 *bhead4 = (BHead4 *) bhead;
573 #if defined(WIN32) && !defined(FREE_WINDOWS)
574         __int64 old;
575 #else
576         long long old;
577 #endif
578
579         bhead4->code= bhead8->code;
580         bhead4->len= bhead8->len;
581
582         if (bhead4->code != ENDB) {
583
584                 // why is this here ??
585                 if (do_endian_swap) {
586                         SWITCH_LONGINT(bhead8->old);
587                 }
588
589                 /* this patch is to avoid a long long being read from not-eight aligned positions
590                    is necessary on any modern 64bit architecture) */
591                 memcpy(&old, &bhead8->old, 8);
592                 bhead4->old = (int) (old >> 3);
593
594                 bhead4->SDNAnr= bhead8->SDNAnr;
595                 bhead4->nr= bhead8->nr;
596         }
597 }
598
599 static void bh8_from_bh4(BHead *bhead, BHead4 *bhead4)
600 {
601         BHead8 *bhead8 = (BHead8 *) bhead;
602
603         bhead8->code= bhead4->code;
604         bhead8->len= bhead4->len;
605
606         if (bhead8->code != ENDB) {
607                 bhead8->old= bhead4->old;
608                 bhead8->SDNAnr= bhead4->SDNAnr;
609                 bhead8->nr= bhead4->nr;
610         }
611 }
612
613 static BHeadN *get_bhead(FileData *fd)
614 {
615         BHead8 bhead8;
616         BHead4 bhead4;
617         BHead  bhead;
618         BHeadN *new_bhead = 0;
619         int readsize;
620         
621         if (fd) {
622                 if ( ! fd->eof) {
623
624                         /* not strictly needed but shuts valgrind up
625                          * since uninitialized memory gets compared */
626                         memset(&bhead8, 0, sizeof(BHead8));
627                         memset(&bhead4, 0, sizeof(BHead4));
628                         memset(&bhead,  0, sizeof(BHead));
629                         
630                         // First read the bhead structure.
631                         // Depending on the platform the file was written on this can
632                         // be a big or little endian BHead4 or BHead8 structure.
633
634                         // As usual 'ENDB' (the last *partial* bhead of the file)
635                         // needs some special handling. We don't want to EOF just yet.
636
637                         if (fd->flags & FD_FLAGS_FILE_POINTSIZE_IS_4) {
638                                 bhead4.code = DATA;
639                                 readsize = fd->read(fd, &bhead4, sizeof(bhead4));
640
641                                 if (readsize == sizeof(bhead4) || bhead4.code == ENDB) {
642                                         if (fd->flags & FD_FLAGS_SWITCH_ENDIAN) {
643                                                 switch_endian_bh4(&bhead4);
644                                         }
645
646                                         if (fd->flags & FD_FLAGS_POINTSIZE_DIFFERS) {
647                                                 bh8_from_bh4(&bhead, &bhead4);
648                                         } else {
649                                                 memcpy(&bhead, &bhead4, sizeof(bhead));
650                                         }
651                                 } else {
652                                         fd->eof = 1;
653                                         bhead.len= 0;
654                                 }
655                         } else {
656                                 bhead8.code = DATA;
657                                 readsize = fd->read(fd, &bhead8, sizeof(bhead8));
658
659                                 if (readsize == sizeof(bhead8) || bhead8.code == ENDB) {
660                                         if (fd->flags & FD_FLAGS_SWITCH_ENDIAN) {
661                                                 switch_endian_bh8(&bhead8);
662                                         }
663
664                                         if (fd->flags & FD_FLAGS_POINTSIZE_DIFFERS) {
665                                                 bh4_from_bh8(&bhead, &bhead8, (fd->flags & FD_FLAGS_SWITCH_ENDIAN));
666                                         } else {
667                                                 memcpy(&bhead, &bhead8, sizeof(bhead));
668                                         }
669                                 } else {
670                                         fd->eof = 1;
671                                         bhead.len= 0;
672                                 }
673                         }
674
675                         /* make sure people are not trying to pass bad blend files */
676                         if (bhead.len < 0) fd->eof = 1;
677
678                         // bhead now contains the (converted) bhead structure. Now read
679                         // the associated data and put everything in a BHeadN (creative naming !)
680
681                         if ( ! fd->eof) {
682                                 new_bhead = MEM_mallocN(sizeof(BHeadN) + bhead.len, "new_bhead");
683                                 if (new_bhead) {
684                                         new_bhead->next = new_bhead->prev = 0;
685                                         new_bhead->bhead = bhead;
686
687                                         readsize = fd->read(fd, new_bhead + 1, bhead.len);
688
689                                         if (readsize != bhead.len) {
690                                                 fd->eof = 1;
691                                                 MEM_freeN(new_bhead);
692                                                 new_bhead = 0;
693                                         }
694                                 } else {
695                                         fd->eof = 1;
696                                 }
697                         }
698                 }
699         }
700
701         // We've read a new block. Now add it to the list
702         // of blocks.
703
704         if (new_bhead) {
705                 BLI_addtail(&fd->listbase, new_bhead);
706         }
707
708         return(new_bhead);
709 }
710
711 BHead *blo_firstbhead(FileData *fd)
712 {
713         BHeadN *new_bhead;
714         BHead *bhead = 0;
715
716         // Rewind the file
717         // Read in a new block if necessary
718
719         new_bhead = fd->listbase.first;
720         if (new_bhead == 0) {
721                 new_bhead = get_bhead(fd);
722         }
723
724         if (new_bhead) {
725                 bhead = &new_bhead->bhead;
726         }
727
728         return(bhead);
729 }
730
731 BHead *blo_prevbhead(FileData *fd, BHead *thisblock)
732 {
733         BHeadN *bheadn= (BHeadN *) (((char *) thisblock) - GET_INT_FROM_POINTER( &((BHeadN*)0)->bhead) );
734         BHeadN *prev= bheadn->prev;
735
736         return prev?&prev->bhead:NULL;
737 }
738
739 BHead *blo_nextbhead(FileData *fd, BHead *thisblock)
740 {
741         BHeadN *new_bhead = NULL;
742         BHead *bhead = NULL;
743
744         if (thisblock) {
745                 // bhead is actually a sub part of BHeadN
746                 // We calculate the BHeadN pointer from the BHead pointer below
747                 new_bhead = (BHeadN *) (((char *) thisblock) - GET_INT_FROM_POINTER( &((BHeadN*)0)->bhead) );
748
749                 // get the next BHeadN. If it doesn't exist we read in the next one
750                 new_bhead = new_bhead->next;
751                 if (new_bhead == 0) {
752                         new_bhead = get_bhead(fd);
753                 }
754         }
755
756         if (new_bhead) {
757                 // here we do the reverse:
758                 // go from the BHeadN pointer to the BHead pointer
759                 bhead = &new_bhead->bhead;
760         }
761
762         return(bhead);
763 }
764
765 static void decode_blender_header(FileData *fd)
766 {
767         char header[SIZEOFBLENDERHEADER], num[4];
768         int readsize;
769
770         // read in the header data
771         readsize = fd->read(fd, header, sizeof(header));
772
773         if (readsize == sizeof(header)) {
774                 if(strncmp(header, "BLENDER", 7) == 0) {
775                         int remove_this_endian_test= 1;
776
777                         fd->flags |= FD_FLAGS_FILE_OK;
778
779                         // what size are pointers in the file ?
780                         if(header[7]=='_') {
781                                 fd->flags |= FD_FLAGS_FILE_POINTSIZE_IS_4;
782                                 if (sizeof(void *) != 4) {
783                                         fd->flags |= FD_FLAGS_POINTSIZE_DIFFERS;
784                                 }
785                         } else {
786                                 if (sizeof(void *) != 8) {
787                                         fd->flags |= FD_FLAGS_POINTSIZE_DIFFERS;
788                                 }
789                         }
790
791                         // is the file saved in a different endian
792                         // than we need ?
793                         if (((((char*)&remove_this_endian_test)[0]==1)?L_ENDIAN:B_ENDIAN) != ((header[8]=='v')?L_ENDIAN:B_ENDIAN)) {
794                                 fd->flags |= FD_FLAGS_SWITCH_ENDIAN;
795                         }
796
797                         // get the version number
798
799                         memcpy(num, header+9, 3);
800                         num[3] = 0;
801                         fd->fileversion = atoi(num);
802                 }
803         }
804 }
805
806 static int read_file_dna(FileData *fd)
807 {
808         BHead *bhead;
809
810         for (bhead= blo_firstbhead(fd); bhead; bhead= blo_nextbhead(fd, bhead)) {
811                 if (bhead->code==DNA1) {
812                         int do_endian_swap= (fd->flags&FD_FLAGS_SWITCH_ENDIAN)?1:0;
813
814                         fd->filesdna= DNA_sdna_from_data(&bhead[1], bhead->len, do_endian_swap);
815                         if (fd->filesdna) {
816                                 
817                                 fd->compflags= DNA_struct_get_compareflags(fd->filesdna, fd->memsdna);
818                                 /* used to retrieve ID names from (bhead+1) */
819                                 fd->id_name_offs= DNA_elem_offset(fd->filesdna, "ID", "char", "name[]");
820                         }
821
822                         return 1;
823                 } else if (bhead->code==ENDB)
824                         break;
825         }
826
827         return 0;
828 }
829
830 static int fd_read_from_file(FileData *filedata, void *buffer, unsigned int size)
831 {
832         int readsize = read(filedata->filedes, buffer, size);
833
834         if (readsize < 0) {
835                 readsize = EOF;
836         } else {
837                 filedata->seek += readsize;
838         }
839
840         return (readsize);
841 }
842
843 static int fd_read_gzip_from_file(FileData *filedata, void *buffer, unsigned int size)
844 {
845         int readsize = gzread(filedata->gzfiledes, buffer, size);
846
847         if (readsize < 0) {
848                 readsize = EOF;
849         } else {
850                 filedata->seek += readsize;
851         }
852
853         return (readsize);
854 }
855
856 static int fd_read_from_memory(FileData *filedata, void *buffer, unsigned int size)
857 {
858                 // don't read more bytes then there are available in the buffer
859         int readsize = MIN2(size, filedata->buffersize - filedata->seek);
860
861         memcpy(buffer, filedata->buffer + filedata->seek, readsize);
862         filedata->seek += readsize;
863
864         return (readsize);
865 }
866
867 static int fd_read_from_memfile(FileData *filedata, void *buffer, unsigned int size)
868 {
869         static unsigned int seek= 1<<30;        /* the current position */
870         static unsigned int offset= 0;          /* size of previous chunks */
871         static MemFileChunk *chunk=NULL;
872         unsigned int chunkoffset, readsize, totread;
873         
874         if(size==0) return 0;
875         
876         if(seek != (unsigned int)filedata->seek) {
877                 chunk= filedata->memfile->chunks.first;
878                 seek= 0;
879                 
880                 while(chunk) {
881                         if(seek + chunk->size > (unsigned) filedata->seek) break;
882                         seek+= chunk->size;
883                         chunk= chunk->next;
884                 }
885                 offset= seek;
886                 seek= filedata->seek;
887         }
888         
889         if(chunk) {
890                 totread= 0;
891
892                 do {
893                         /* first check if it's on the end if current chunk */
894                         if(seek-offset == chunk->size) {
895                                 offset+= chunk->size;
896                                 chunk= chunk->next;
897                         }
898
899                         /* debug, should never happen */
900                         if(chunk==NULL) {
901                                 printf("illegal read, chunk zero\n");
902                                 return 0;
903                         }
904
905                         chunkoffset= seek-offset;
906                         readsize= size-totread;
907
908                         /* data can be spread over multiple chunks, so clamp size
909                          * to within this chunk, and then it will read further in
910                          * the next chunk */
911                         if(chunkoffset+readsize > chunk->size)
912                                 readsize= chunk->size-chunkoffset;
913
914                         memcpy((char*)buffer+totread, chunk->buf+chunkoffset, readsize);
915                         totread += readsize;
916                         filedata->seek += readsize;
917                         seek += readsize;
918                 } while(totread < size);
919                 
920                 return totread;
921         }
922
923         return 0;
924 }
925
926 static FileData *filedata_new(void)
927 {
928         FileData *fd = MEM_callocN(sizeof(FileData), "FileData");
929
930         fd->filedes = -1;
931         fd->gzfiledes = NULL;
932
933                 /* XXX, this doesn't need to be done all the time,
934                  * but it keeps us reentrant,  remove once we have
935                  * a lib that provides a nice lock. - zr
936                  */
937         fd->memsdna = DNA_sdna_from_data(DNAstr,  DNAlen,  0);
938
939         fd->datamap = oldnewmap_new();
940         fd->globmap = oldnewmap_new();
941         fd->libmap = oldnewmap_new();
942
943         return fd;
944 }
945
946 static FileData *blo_decode_and_check(FileData *fd, ReportList *reports)
947 {
948         decode_blender_header(fd);
949
950         if (fd->flags & FD_FLAGS_FILE_OK) {
951                 if (!read_file_dna(fd)) {
952                         BKE_report(reports, RPT_ERROR, "File incomplete");
953                         blo_freefiledata(fd);
954                         fd= NULL;
955                 }
956         } 
957         else {
958                 BKE_report(reports, RPT_ERROR, "File is not a Blender file");
959                 blo_freefiledata(fd);
960                 fd= NULL;
961         }
962
963         return fd;
964 }
965
966 /* cannot be called with relative paths anymore! */
967 /* on each new library added, it now checks for the current FileData and expands relativeness */
968 FileData *blo_openblenderfile(char *name, ReportList *reports)
969 {
970         gzFile gzfile;
971         
972         gzfile= gzopen(name, "rb");
973
974         if (NULL == gzfile) {
975                 BKE_report(reports, RPT_ERROR, "Unable to open");
976                 return NULL;
977         } else {
978                 FileData *fd = filedata_new();
979                 fd->gzfiledes = gzfile;
980                 fd->read = fd_read_gzip_from_file;
981
982                 /* needed for library_append and read_libraries */
983                 BLI_strncpy(fd->filename, name, sizeof(fd->filename));
984
985                 return blo_decode_and_check(fd, reports);
986         }
987 }
988
989 FileData *blo_openblendermemory(void *mem, int memsize, ReportList *reports)
990 {
991         if (!mem || memsize<SIZEOFBLENDERHEADER) {
992                 BKE_report(reports, RPT_ERROR, (mem)? "Unable to read": "Unable to open");
993                 return NULL;
994         } else {
995                 FileData *fd= filedata_new();
996                 fd->buffer= mem;
997                 fd->buffersize= memsize;
998                 fd->read= fd_read_from_memory;
999                 fd->flags|= FD_FLAGS_NOT_MY_BUFFER;
1000
1001                 return blo_decode_and_check(fd, reports);
1002         }
1003 }
1004
1005 FileData *blo_openblendermemfile(MemFile *memfile, ReportList *reports)
1006 {
1007         if (!memfile) {
1008                 BKE_report(reports, RPT_ERROR, "Unable to open");
1009                 return NULL;
1010         } else {
1011                 FileData *fd= filedata_new();
1012                 fd->memfile= memfile;
1013
1014                 fd->read= fd_read_from_memfile;
1015                 fd->flags|= FD_FLAGS_NOT_MY_BUFFER;
1016
1017                 return blo_decode_and_check(fd, reports);
1018         }
1019 }
1020
1021
1022 void blo_freefiledata(FileData *fd)
1023 {
1024         if (fd) {
1025                 
1026                 if (fd->filedes != -1) {
1027                         close(fd->filedes);
1028                 }
1029
1030                 if (fd->gzfiledes != NULL)
1031                 {
1032                         gzclose(fd->gzfiledes);
1033                 }
1034
1035                 if (fd->buffer && !(fd->flags & FD_FLAGS_NOT_MY_BUFFER)) {
1036                         MEM_freeN(fd->buffer);
1037                         fd->buffer = 0;
1038                 }
1039
1040                 // Free all BHeadN data blocks
1041                 BLI_freelistN(&fd->listbase);
1042
1043                 if (fd->memsdna)
1044                         DNA_sdna_free(fd->memsdna);
1045                 if (fd->filesdna)
1046                         DNA_sdna_free(fd->filesdna);
1047                 if (fd->compflags)
1048                         MEM_freeN(fd->compflags);
1049
1050                 if (fd->datamap)
1051                         oldnewmap_free(fd->datamap);
1052                 if (fd->globmap)
1053                         oldnewmap_free(fd->globmap);
1054                 if (fd->imamap)
1055                         oldnewmap_free(fd->imamap);
1056                 if (fd->libmap && !(fd->flags & FD_FLAGS_NOT_MY_LIBMAP))
1057                         oldnewmap_free(fd->libmap);
1058                 if (fd->bheadmap)
1059                         MEM_freeN(fd->bheadmap);
1060                 
1061                 MEM_freeN(fd);
1062         }
1063 }
1064
1065 /* ************ DIV ****************** */
1066
1067 int BLO_has_bfile_extension(char *str)
1068 {
1069         return (BLI_testextensie(str, ".ble") || BLI_testextensie(str, ".blend")||BLI_testextensie(str, ".blend.gz"));
1070 }
1071
1072 /* ************** OLD POINTERS ******************* */
1073
1074 static void *newdataadr(FileData *fd, void *adr)                /* only direct databocks */
1075 {
1076         return oldnewmap_lookup_and_inc(fd->datamap, adr);
1077 }
1078
1079 static void *newglobadr(FileData *fd, void *adr)                /* direct datablocks with global linking */
1080 {
1081         return oldnewmap_lookup_and_inc(fd->globmap, adr);
1082 }
1083
1084 static void *newimaadr(FileData *fd, void *adr)         /* used to restore image data after undo */
1085 {
1086         if(fd->imamap && adr)
1087                 return oldnewmap_lookup_and_inc(fd->imamap, adr);
1088         return NULL;
1089 }
1090
1091
1092 static void *newlibadr(FileData *fd, void *lib, void *adr)              /* only lib data */
1093 {
1094         return oldnewmap_liblookup(fd->libmap, adr, lib);
1095 }
1096
1097 static void *newlibadr_us(FileData *fd, void *lib, void *adr)   /* increases user number */
1098 {
1099         ID *id= newlibadr(fd, lib, adr);
1100
1101         if(id)
1102                 id->us++;
1103
1104         return id;
1105 }
1106
1107 static void change_idid_adr_fd(FileData *fd, void *old, void *new)
1108 {
1109         int i;
1110         
1111         for (i=0; i<fd->libmap->nentries; i++) {
1112                 OldNew *entry= &fd->libmap->entries[i];
1113                 
1114                 if (old==entry->newp && entry->nr==ID_ID) {
1115                         entry->newp= new;
1116                         if(new) entry->nr= GS( ((ID *)new)->name );
1117                         break;
1118                 }
1119         }
1120 }
1121
1122 static void change_idid_adr(ListBase *mainlist, FileData *basefd, void *old, void *new)
1123 {
1124         Main *mainptr;
1125         
1126         for(mainptr= mainlist->first; mainptr; mainptr= mainptr->next) {
1127                 FileData *fd;
1128                 
1129                 if(mainptr->curlib) fd= mainptr->curlib->filedata;
1130                 else fd= basefd;
1131                 
1132                 if(fd) {
1133                         change_idid_adr_fd(fd, old, new);
1134                 }
1135         }
1136 }
1137
1138 /* lib linked proxy objects point to our local data, we need
1139  * to clear that pointer before reading the undo memfile since
1140  * the object might be removed, it is set again in reading
1141  * if the local object still exists */
1142 void blo_clear_proxy_pointers_from_lib(FileData *fd, Main *oldmain)
1143 {
1144         Object *ob= oldmain->object.first;
1145         
1146         for(;ob; ob= ob->id.next)
1147                 if(ob->id.lib)
1148                         ob->proxy_from= NULL;
1149 }
1150
1151 void blo_make_image_pointer_map(FileData *fd, Main *oldmain)
1152 {
1153         Image *ima= oldmain->image.first;
1154         Scene *sce= oldmain->scene.first;
1155         
1156         fd->imamap= oldnewmap_new();
1157         
1158         for(;ima; ima= ima->id.next) {
1159                 Link *ibuf= ima->ibufs.first;
1160                 for(; ibuf; ibuf= ibuf->next) 
1161                         oldnewmap_insert(fd->imamap, ibuf, ibuf, 0);
1162                 if(ima->gputexture)
1163                         oldnewmap_insert(fd->imamap, ima->gputexture, ima->gputexture, 0);
1164         }
1165         for(; sce; sce= sce->id.next) {
1166                 if(sce->nodetree) {
1167                         bNode *node;
1168                         for(node= sce->nodetree->nodes.first; node; node= node->next)
1169                                 oldnewmap_insert(fd->imamap, node->preview, node->preview, 0);
1170                 }
1171         }
1172 }
1173
1174 /* set old main image ibufs to zero if it has been restored */
1175 /* this works because freeing old main only happens after this call */
1176 void blo_end_image_pointer_map(FileData *fd, Main *oldmain)
1177 {
1178         OldNew *entry= fd->imamap->entries;
1179         Image *ima= oldmain->image.first;
1180         Scene *sce= oldmain->scene.first;
1181         int i;
1182         
1183         /* used entries were restored, so we put them to zero */
1184         for (i=0; i<fd->imamap->nentries; i++, entry++) {
1185                 if (entry->nr>0)
1186                         entry->newp= NULL;
1187         }
1188         
1189         for(;ima; ima= ima->id.next) {
1190                 Link *ibuf, *next;
1191                 
1192                 /* this mirrors direct_link_image */
1193                 for(ibuf= ima->ibufs.first; ibuf; ibuf= next) {
1194                         next= ibuf->next;
1195                         if(NULL==newimaadr(fd, ibuf)) { /* so was restored */
1196                                 BLI_remlink(&ima->ibufs, ibuf);
1197                                 ima->bindcode= 0;
1198                                 ima->gputexture= NULL;
1199                         }
1200                 }
1201
1202                 ima->gputexture= newimaadr(fd, ima->gputexture);
1203         }
1204         for(; sce; sce= sce->id.next) {
1205                 if(sce->nodetree) {
1206                         bNode *node;
1207                         for(node= sce->nodetree->nodes.first; node; node= node->next)
1208                                 node->preview= newimaadr(fd, node->preview);
1209                 }
1210         }
1211 }
1212
1213 /* undo file support: add all library pointers in lookup */
1214 void blo_add_library_pointer_map(ListBase *mainlist, FileData *fd)
1215 {
1216         Main *ptr= mainlist->first;
1217         ListBase *lbarray[MAX_LIBARRAY];
1218         
1219         for(ptr= ptr->next; ptr; ptr= ptr->next) {
1220                 int i= set_listbasepointers(ptr, lbarray);
1221                 while(i--) {
1222                         ID *id;
1223                         for(id= lbarray[i]->first; id; id= id->next)
1224                                 oldnewmap_insert(fd->libmap, id, id, GS(id->name));
1225                 }
1226         }
1227 }
1228                 
1229
1230 /* ********** END OLD POINTERS ****************** */
1231 /* ********** READ FILE ****************** */
1232
1233 static void switch_endian_structs(struct SDNA *filesdna, BHead *bhead)
1234 {
1235         int blocksize, nblocks;
1236         char *data;
1237
1238         data= (char *)(bhead+1);
1239         blocksize= filesdna->typelens[ filesdna->structs[bhead->SDNAnr][0] ];
1240
1241         nblocks= bhead->nr;
1242         while(nblocks--) {
1243                 DNA_struct_switch_endian(filesdna, bhead->SDNAnr, data);
1244
1245                 data+= blocksize;
1246         }
1247 }
1248
1249 static void *read_struct(FileData *fd, BHead *bh, char *blockname)
1250 {
1251         void *temp= NULL;
1252
1253         if (bh->len) {
1254                 /* switch is based on file dna */
1255                 if (bh->SDNAnr && (fd->flags & FD_FLAGS_SWITCH_ENDIAN))
1256                         switch_endian_structs(fd->filesdna, bh);
1257
1258                 if (fd->compflags[bh->SDNAnr]) {        /* flag==0: doesn't exist anymore */
1259                         if(fd->compflags[bh->SDNAnr]==2) {
1260                                 temp= DNA_struct_reconstruct(fd->memsdna, fd->filesdna, fd->compflags, bh->SDNAnr, bh->nr, (bh+1));
1261                         } else {
1262                                 temp= MEM_mallocN(bh->len, blockname);
1263                                 memcpy(temp, (bh+1), bh->len);
1264                         }
1265                 }
1266         }
1267
1268         return temp;
1269 }
1270
1271 static void link_list(FileData *fd, ListBase *lb)               /* only direct data */
1272 {
1273         Link *ln, *prev;
1274
1275         if(lb->first==NULL) return;
1276
1277         lb->first= newdataadr(fd, lb->first);
1278         ln= lb->first;
1279         prev= NULL;
1280         while(ln) {
1281                 ln->next= newdataadr(fd, ln->next);
1282                 ln->prev= prev;
1283                 prev= ln;
1284                 ln= ln->next;
1285         }
1286         lb->last= prev;
1287 }
1288
1289 static void link_glob_list(FileData *fd, ListBase *lb)          /* for glob data */
1290 {
1291         Link *ln, *prev;
1292         void *poin;
1293
1294         if(lb->first==0) return;
1295         poin= newdataadr(fd, lb->first);
1296         if(lb->first) {
1297                 oldnewmap_insert(fd->globmap, lb->first, poin, 0);
1298         }
1299         lb->first= poin;
1300
1301         ln= lb->first;
1302         prev= 0;
1303         while(ln) {
1304                 poin= newdataadr(fd, ln->next);
1305                 if(ln->next) {
1306                         oldnewmap_insert(fd->globmap, ln->next, poin, 0);
1307                 }
1308                 ln->next= poin;
1309                 ln->prev= prev;
1310                 prev= ln;
1311                 ln= ln->next;
1312         }
1313         lb->last= prev;
1314 }
1315
1316 static void test_pointer_array(FileData *fd, void **mat)
1317 {
1318 #if defined(WIN32) && !defined(FREE_WINDOWS)
1319         __int64 *lpoin, *lmat;
1320 #else
1321         long long *lpoin, *lmat;
1322 #endif
1323         int len, *ipoin, *imat;
1324
1325                 /* manually convert the pointer array in
1326                  * the old dna format to a pointer array in
1327                  * the new dna format.
1328                  */
1329         if(*mat) {
1330                 len= MEM_allocN_len(*mat)/fd->filesdna->pointerlen;
1331
1332                 if(fd->filesdna->pointerlen==8 && fd->memsdna->pointerlen==4) {
1333                         ipoin=imat= MEM_mallocN( len*4, "newmatar");
1334                         lpoin= *mat;
1335
1336                         while(len-- > 0) {
1337                                 if((fd->flags & FD_FLAGS_SWITCH_ENDIAN))
1338                                         SWITCH_LONGINT(*lpoin);
1339                                 *ipoin= (int) ((*lpoin) >> 3);
1340                                 ipoin++;
1341                                 lpoin++;
1342                         }
1343                         MEM_freeN(*mat);
1344                         *mat= imat;
1345                 }
1346
1347                 if(fd->filesdna->pointerlen==4 && fd->memsdna->pointerlen==8) {
1348                         lpoin=lmat= MEM_mallocN( len*8, "newmatar");
1349                         ipoin= *mat;
1350
1351                         while(len-- > 0) {
1352                                 *lpoin= *ipoin;
1353                                 ipoin++;
1354                                 lpoin++;
1355                         }
1356                         MEM_freeN(*mat);
1357                         *mat= lmat;
1358                 }
1359         }
1360 }
1361
1362 /* ************ READ ID Properties *************** */
1363
1364 void IDP_DirectLinkProperty(IDProperty *prop, int switch_endian, FileData *fd);
1365 void IDP_LibLinkProperty(IDProperty *prop, int switch_endian, FileData *fd);
1366
1367 static void IDP_DirectLinkIDPArray(IDProperty *prop, int switch_endian, FileData *fd)
1368 {
1369         IDProperty *array;
1370         int i;
1371
1372         /*since we didn't save the extra buffer, set totallen to len.*/
1373         prop->totallen = prop->len;
1374         prop->data.pointer = newdataadr(fd, prop->data.pointer);
1375
1376         if (switch_endian) {
1377                 array= (IDProperty*) prop->data.pointer;
1378
1379                 for(i=0; i<prop->len; i++)
1380                         IDP_DirectLinkProperty(&array[i], switch_endian, fd);
1381         }
1382 }
1383
1384 static void IDP_DirectLinkArray(IDProperty *prop, int switch_endian, FileData *fd)
1385 {
1386         IDProperty **array;
1387         int i;
1388
1389         /*since we didn't save the extra buffer, set totallen to len.*/
1390         prop->totallen = prop->len;
1391         prop->data.pointer = newdataadr(fd, prop->data.pointer);
1392
1393         if (switch_endian) {
1394                 if(prop->subtype == IDP_GROUP) {
1395                         test_pointer_array(fd, prop->data.pointer);
1396                         array= prop->data.pointer;
1397
1398                         for(i=0; i<prop->len; i++)
1399                                 IDP_DirectLinkProperty(array[i], switch_endian, fd);
1400                 }
1401                 else if(prop->subtype == IDP_DOUBLE) {
1402                         for (i=0; i<prop->len; i++) {
1403                                 SWITCH_LONGINT(((double*)prop->data.pointer)[i]);
1404                         }
1405                 } else {
1406                         for (i=0; i<prop->len; i++) {
1407                                 SWITCH_INT(((int*)prop->data.pointer)[i]);
1408                         }
1409                 }
1410         }
1411 }
1412
1413 static void IDP_DirectLinkString(IDProperty *prop, int switch_endian, FileData *fd)
1414 {
1415         /*since we didn't save the extra string buffer, set totallen to len.*/
1416         prop->totallen = prop->len;
1417         prop->data.pointer = newdataadr(fd, prop->data.pointer);
1418 }
1419
1420 static void IDP_DirectLinkGroup(IDProperty *prop, int switch_endian, FileData *fd)
1421 {
1422         ListBase *lb = &prop->data.group;
1423         IDProperty *loop;
1424
1425         link_list(fd, lb);
1426
1427         /*Link child id properties now*/
1428         for (loop=prop->data.group.first; loop; loop=loop->next) {
1429                 IDP_DirectLinkProperty(loop, switch_endian, fd);
1430         }
1431 }
1432
1433 void IDP_DirectLinkProperty(IDProperty *prop, int switch_endian, FileData *fd)
1434 {
1435         switch (prop->type) {
1436                 case IDP_GROUP:
1437                         IDP_DirectLinkGroup(prop, switch_endian, fd);
1438                         break;
1439                 case IDP_STRING:
1440                         IDP_DirectLinkString(prop, switch_endian, fd);
1441                         break;
1442                 case IDP_ARRAY:
1443                         IDP_DirectLinkArray(prop, switch_endian, fd);
1444                         break;
1445                 case IDP_IDPARRAY:
1446                         IDP_DirectLinkIDPArray(prop, switch_endian, fd);
1447                         break;
1448                 case IDP_DOUBLE:
1449                         /*erg, stupid doubles.  since I'm storing them
1450                          in the same field as int val; val2 in the
1451                          IDPropertyData struct, they have to deal with
1452                          endianness specifically
1453                          
1454                          in theory, val and val2 would've already been swapped
1455                          if switch_endian is true, so we have to first unswap
1456                          them then reswap them as a single 64-bit entity.
1457                          */
1458                         
1459                         if (switch_endian) {
1460                                 SWITCH_INT(prop->data.val);
1461                                 SWITCH_INT(prop->data.val2);
1462                                 SWITCH_LONGINT(prop->data.val);
1463                         }
1464                         
1465                         break;
1466         }
1467 }
1468
1469 /*stub function*/
1470 void IDP_LibLinkProperty(IDProperty *prop, int switch_endian, FileData *fd)
1471 {
1472 }
1473
1474 /* ************ READ CurveMapping *************** */
1475
1476 /* cuma itself has been read! */
1477 static void direct_link_curvemapping(FileData *fd, CurveMapping *cumap)
1478 {
1479         int a;
1480         
1481         /* flag seems to be able to hang? Maybe old files... not bad to clear anyway */
1482         cumap->flag &= ~CUMA_PREMULLED;
1483         
1484         for(a=0; a<CM_TOT; a++) {
1485                 cumap->cm[a].curve= newdataadr(fd, cumap->cm[a].curve);
1486                 cumap->cm[a].table= NULL;
1487         }
1488 }
1489
1490 /* ************ READ Brush *************** */
1491 /* library brush linking after fileread */
1492 static void lib_link_brush(FileData *fd, Main *main)
1493 {
1494         Brush *brush;
1495         MTex *mtex;
1496         int a;
1497         
1498         /* only link ID pointers */
1499         for(brush= main->brush.first; brush; brush= brush->id.next) {
1500                 if(brush->id.flag & LIB_NEEDLINK) {
1501                         brush->id.flag -= LIB_NEEDLINK;
1502
1503                         brush->clone.image= newlibadr_us(fd, brush->id.lib, brush->clone.image);
1504                         
1505                         for(a=0; a<MAX_MTEX; a++) {
1506                                 mtex= brush->mtex[a];
1507                                 if(mtex)
1508                                         mtex->tex= newlibadr_us(fd, brush->id.lib, mtex->tex);
1509                         }
1510
1511                         brush->clone.image= newlibadr_us(fd, brush->id.lib, brush->clone.image);
1512                 }
1513         }
1514 }
1515
1516 static void direct_link_brush(FileData *fd, Brush *brush)
1517 {
1518         /* brush itself has been read */
1519         int a;
1520
1521         for(a=0; a<MAX_MTEX; a++)
1522                 brush->mtex[a]= newdataadr(fd, brush->mtex[a]);
1523
1524         /* fallof curve */
1525         brush->curve= newdataadr(fd, brush->curve);
1526         if(brush->curve)
1527                 direct_link_curvemapping(fd, brush->curve);
1528         else
1529                 brush_curve_preset(brush, BRUSH_PRESET_SHARP);
1530 }
1531
1532 static void direct_link_script(FileData *fd, Script *script)
1533 {
1534         script->id.us = 1;
1535         SCRIPT_SET_NULL(script)
1536 }
1537
1538
1539 /* ************ READ PACKEDFILE *************** */
1540
1541 static PackedFile *direct_link_packedfile(FileData *fd, PackedFile *oldpf)
1542 {
1543         PackedFile *pf= newdataadr(fd, oldpf);
1544
1545         if (pf) {
1546                 pf->data= newdataadr(fd, pf->data);
1547         }
1548
1549         return pf;
1550 }
1551
1552 /* ************ READ IMAGE PREVIEW *************** */
1553
1554 static PreviewImage *direct_link_preview_image(FileData *fd, PreviewImage *old_prv)
1555 {
1556         PreviewImage *prv= newdataadr(fd, old_prv);
1557
1558         if (prv) {
1559                 int i;
1560                 for (i=0; i < PREVIEW_MIPMAPS; ++i) {
1561                         if (prv->rect[i]) {
1562                                 prv->rect[i] = newdataadr(fd, prv->rect[i]);
1563                         }
1564                 }
1565         }
1566
1567         return prv;
1568 }
1569
1570 /* ************ READ ANIMATION STUFF ***************** */
1571
1572 /* Legacy Data Support (for Version Patching) ----------------------------- */
1573
1574 // XXX depreceated - old animation system
1575 static void lib_link_ipo(FileData *fd, Main *main)
1576 {
1577         Ipo *ipo;
1578
1579         ipo= main->ipo.first;
1580         while(ipo) {
1581                 if(ipo->id.flag & LIB_NEEDLINK) {
1582                         IpoCurve *icu;
1583                         for(icu= ipo->curve.first; icu; icu= icu->next) {
1584                                 if(icu->driver)
1585                                         icu->driver->ob= newlibadr(fd, ipo->id.lib, icu->driver->ob);
1586                         }
1587                         ipo->id.flag -= LIB_NEEDLINK;
1588                 }
1589                 ipo= ipo->id.next;
1590         }
1591 }
1592
1593 // XXX depreceated - old animation system
1594 static void direct_link_ipo(FileData *fd, Ipo *ipo)
1595 {
1596         IpoCurve *icu;
1597
1598         link_list(fd, &(ipo->curve));
1599         icu= ipo->curve.first;
1600         while(icu) {
1601                 icu->bezt= newdataadr(fd, icu->bezt);
1602                 icu->bp= newdataadr(fd, icu->bp);
1603                 icu->driver= newdataadr(fd, icu->driver);
1604                 icu= icu->next;
1605         }
1606 }
1607
1608 // XXX depreceated - old animation system
1609 static void lib_link_nlastrips(FileData *fd, ID *id, ListBase *striplist)
1610 {
1611         bActionStrip *strip;
1612         bActionModifier *amod;
1613         
1614         for (strip=striplist->first; strip; strip=strip->next){
1615                 strip->object = newlibadr(fd, id->lib, strip->object);
1616                 strip->act = newlibadr_us(fd, id->lib, strip->act);
1617                 strip->ipo = newlibadr(fd, id->lib, strip->ipo);
1618                 for(amod= strip->modifiers.first; amod; amod= amod->next)
1619                         amod->ob= newlibadr(fd, id->lib, amod->ob);
1620         }
1621 }
1622
1623 // XXX depreceated - old animation system
1624 static void direct_link_nlastrips(FileData *fd, ListBase *strips)
1625 {
1626         bActionStrip *strip;
1627         
1628         link_list(fd, strips);
1629         
1630         for(strip= strips->first; strip; strip= strip->next)
1631                 link_list(fd, &strip->modifiers);
1632 }
1633
1634 // XXX depreceated - old animation system
1635 static void lib_link_constraint_channels(FileData *fd, ID *id, ListBase *chanbase)
1636 {
1637         bConstraintChannel *chan;
1638
1639         for (chan=chanbase->first; chan; chan=chan->next){
1640                 chan->ipo = newlibadr_us(fd, id->lib, chan->ipo);
1641         }
1642 }
1643
1644 /* Data Linking ----------------------------- */
1645
1646 static void lib_link_fmodifiers(FileData *fd, ID *id, ListBase *list)
1647 {
1648         FModifier *fcm;
1649         
1650         for (fcm= list->first; fcm; fcm= fcm->next) {
1651                 /* data for specific modifiers */
1652                 switch (fcm->type) {
1653                         case FMODIFIER_TYPE_PYTHON:
1654                         {
1655                                 FMod_Python *data= (FMod_Python *)fcm->data;
1656                                 data->script = newlibadr(fd, id->lib, data->script);
1657                         }
1658                                 break;
1659                 }
1660         }
1661 }
1662
1663 static void lib_link_fcurves(FileData *fd, ID *id, ListBase *list) 
1664 {
1665         FCurve *fcu;
1666         
1667         /* relink ID-block references... */
1668         for (fcu= list->first; fcu; fcu= fcu->next) {
1669                 /* driver data */
1670                 if (fcu->driver) {
1671                         ChannelDriver *driver= fcu->driver;
1672                         DriverTarget *dtar;
1673                         
1674                         for (dtar= driver->targets.first; dtar; dtar= dtar->next)
1675                                 dtar->id= newlibadr(fd, id->lib, dtar->id); 
1676                 }
1677                 
1678                 /* modifiers */
1679                 lib_link_fmodifiers(fd, id, &fcu->modifiers);
1680         }
1681 }
1682
1683
1684 /* NOTE: this assumes that link_list has already been called on the list */
1685 static void direct_link_fmodifiers(FileData *fd, ListBase *list)
1686 {
1687         FModifier *fcm;
1688         
1689         for (fcm= list->first; fcm; fcm= fcm->next) {
1690                 /* relink general data */
1691                 fcm->data = newdataadr(fd, fcm->data);
1692                 fcm->edata= NULL;
1693                 
1694                 /* do relinking of data for specific types */
1695                 switch (fcm->type) {
1696                         case FMODIFIER_TYPE_GENERATOR:
1697                         {
1698                                 FMod_Generator *data= (FMod_Generator *)fcm->data;
1699                                 
1700                                 data->coefficients= newdataadr(fd, data->coefficients);
1701                         }
1702                                 break;
1703                         case FMODIFIER_TYPE_ENVELOPE:
1704                         {
1705                                 FMod_Envelope *data= (FMod_Envelope *)fcm->data;
1706                                 
1707                                 data->data= newdataadr(fd, data->data);
1708                         }
1709                                 break;
1710                         case FMODIFIER_TYPE_PYTHON:
1711                         {
1712                                 FMod_Python *data= (FMod_Python *)fcm->data;
1713                                 
1714                                 data->prop = newdataadr(fd, data->prop);
1715                                 IDP_DirectLinkProperty(data->prop, (fd->flags & FD_FLAGS_SWITCH_ENDIAN), fd);
1716                         }
1717                                 break;
1718                 }
1719         }
1720 }
1721
1722 /* NOTE: this assumes that link_list has already been called on the list */
1723 static void direct_link_fcurves(FileData *fd, ListBase *list)
1724 {
1725         FCurve *fcu;
1726         
1727         /* link F-Curve data to F-Curve again (non ID-libs) */
1728         for (fcu= list->first; fcu; fcu= fcu->next) {
1729                 /* curve data */
1730                 fcu->bezt= newdataadr(fd, fcu->bezt);
1731                 fcu->fpt= newdataadr(fd, fcu->fpt);
1732                 
1733                 /* rna path */
1734                 fcu->rna_path= newdataadr(fd, fcu->rna_path);
1735                 
1736                 /* group */
1737                 fcu->grp= newdataadr(fd, fcu->grp);
1738                 
1739                 /* driver */
1740                 fcu->driver= newdataadr(fd, fcu->driver);
1741                 if (fcu->driver) {
1742                         ChannelDriver *driver= fcu->driver;
1743                         DriverTarget *dtar;
1744                         
1745                         /* relink targets and their paths */
1746                         link_list(fd, &driver->targets);
1747                         for (dtar= driver->targets.first; dtar; dtar= dtar->next)
1748                                 dtar->rna_path= newdataadr(fd, dtar->rna_path);
1749                 }
1750                 
1751                 /* modifiers */
1752                 link_list(fd, &fcu->modifiers);
1753                 direct_link_fmodifiers(fd, &fcu->modifiers);
1754         }
1755 }
1756
1757
1758 static void lib_link_action(FileData *fd, Main *main)
1759 {
1760         bAction *act;
1761         bActionChannel *chan;
1762
1763         for (act= main->action.first; act; act= act->id.next) {
1764                 if (act->id.flag & LIB_NEEDLINK) {
1765                         act->id.flag -= LIB_NEEDLINK;
1766                         
1767 // XXX depreceated - old animation system <<<
1768                         for (chan=act->chanbase.first; chan; chan=chan->next) {
1769                                 chan->ipo= newlibadr_us(fd, act->id.lib, chan->ipo);
1770                                 lib_link_constraint_channels(fd, &act->id, &chan->constraintChannels);
1771                         }
1772 // >>> XXX depreceated - old animation system
1773                         
1774                         lib_link_fcurves(fd, &act->id, &act->curves);
1775                 }
1776         }
1777 }
1778
1779 static void direct_link_action(FileData *fd, bAction *act)
1780 {
1781         bActionChannel *achan; // XXX depreceated - old animation system
1782         bActionGroup *agrp;
1783
1784         link_list(fd, &act->curves);
1785         link_list(fd, &act->chanbase); // XXX depreceated - old animation system
1786         link_list(fd, &act->groups);
1787         link_list(fd, &act->markers);
1788
1789 // XXX depreceated - old animation system <<<
1790         for (achan = act->chanbase.first; achan; achan=achan->next) {
1791                 achan->grp= newdataadr(fd, achan->grp);
1792                 
1793                 link_list(fd, &achan->constraintChannels);
1794         }
1795 // >>> XXX depreceated - old animation system
1796
1797         direct_link_fcurves(fd, &act->curves);
1798         
1799         for (agrp = act->groups.first; agrp; agrp= agrp->next) {
1800                 agrp->channels.first= newdataadr(fd, agrp->channels.first);
1801                 agrp->channels.last= newdataadr(fd, agrp->channels.last);
1802         }
1803 }
1804
1805 static void lib_link_nladata_strips(FileData *fd, ID *id, ListBase *list)
1806 {
1807         NlaStrip *strip;
1808         
1809         for (strip= list->first; strip; strip= strip->next) {
1810                 /* check strip's children */
1811                 lib_link_nladata_strips(fd, id, &strip->strips);
1812                 
1813                 /* reassign the counted-reference to action */
1814                 strip->act = newlibadr_us(fd, id->lib, strip->act);
1815         }
1816 }
1817
1818 static void lib_link_nladata(FileData *fd, ID *id, ListBase *list)
1819 {
1820         NlaTrack *nlt;
1821         
1822         /* we only care about the NLA strips inside the tracks */
1823         for (nlt= list->first; nlt; nlt= nlt->next) {
1824                 lib_link_nladata_strips(fd, id, &nlt->strips);
1825         }
1826 }
1827
1828 /* This handles Animato NLA-Strips linking 
1829  * NOTE: this assumes that link_list has already been called on the list 
1830  */
1831 static void direct_link_nladata_strips(FileData *fd, ListBase *list)
1832 {
1833         NlaStrip *strip;
1834         
1835         for (strip= list->first; strip; strip= strip->next) {
1836                 /* strip's child strips */
1837                 link_list(fd, &strip->strips);
1838                 direct_link_nladata_strips(fd, &strip->strips);
1839                 
1840                 /* strip's F-Curves */
1841                 link_list(fd, &strip->fcurves);
1842                 direct_link_fcurves(fd, &strip->fcurves);
1843                 
1844                 /* strip's F-Modifiers */
1845                 link_list(fd, &strip->modifiers);
1846                 direct_link_fcurves(fd, &strip->modifiers);
1847         }
1848 }
1849
1850 /* NOTE: this assumes that link_list has already been called on the list */
1851 static void direct_link_nladata(FileData *fd, ListBase *list)
1852 {
1853         NlaTrack *nlt;
1854         
1855         for (nlt= list->first; nlt; nlt= nlt->next) {
1856                 /* relink list of strips */
1857                 link_list(fd, &nlt->strips);
1858                 
1859                 /* relink strip data */
1860                 direct_link_nladata_strips(fd, &nlt->strips);
1861         }
1862 }
1863
1864 /* ------- */
1865
1866 static void lib_link_keyingsets(FileData *fd, ID *id, ListBase *list)
1867 {
1868         KeyingSet *ks;
1869         KS_Path *ksp;
1870         
1871         /* here, we're only interested in the ID pointer stored in some of the paths */
1872         for (ks= list->first; ks; ks= ks->next) {
1873                 for (ksp= ks->paths.first; ksp; ksp= ksp->next) {
1874                         ksp->id= newlibadr(fd, id->lib, ksp->id); 
1875                 }
1876         }
1877 }
1878
1879 /* NOTE: this assumes that link_list has already been called on the list */
1880 static void direct_link_keyingsets(FileData *fd, ListBase *list)
1881 {
1882         KeyingSet *ks;
1883         KS_Path *ksp;
1884         
1885         /* link KeyingSet data to KeyingSet again (non ID-libs) */
1886         for (ks= list->first; ks; ks= ks->next) {
1887                 /* paths */
1888                 link_list(fd, &ks->paths);
1889                 
1890                 for (ksp= ks->paths.first; ksp; ksp= ksp->next) {
1891                         /* rna path */
1892                         ksp->rna_path= newdataadr(fd, ksp->rna_path);
1893                 }
1894         }
1895 }
1896
1897 /* ------- */
1898
1899 static void lib_link_animdata(FileData *fd, ID *id, AnimData *adt)
1900 {
1901         if (adt == NULL)
1902                 return;
1903         
1904         /* link action data */
1905         adt->action= newlibadr_us(fd, id->lib, adt->action);
1906         adt->tmpact= newlibadr_us(fd, id->lib, adt->tmpact);
1907         
1908         /* link drivers */
1909         lib_link_fcurves(fd, id, &adt->drivers);
1910         
1911         /* overrides don't have lib-link for now, so no need to do anything */
1912         
1913         /* link NLA-data */
1914         lib_link_nladata(fd, id, &adt->nla_tracks);
1915 }
1916
1917 static void direct_link_animdata(FileData *fd, AnimData *adt)
1918 {
1919         /* NOTE: must have called newdataadr already before doing this... */
1920         if (adt == NULL)
1921                 return;
1922         
1923         /* link drivers */
1924         link_list(fd, &adt->drivers);
1925         direct_link_fcurves(fd, &adt->drivers);
1926         
1927         /* link overrides */
1928         // TODO...
1929         
1930         /* link NLA-data */
1931         link_list(fd, &adt->nla_tracks);
1932         direct_link_nladata(fd, &adt->nla_tracks);
1933         
1934         /* clear temp pointers that may have been set... */
1935         // TODO: it's probably only a small cost to reload this anyway...
1936         adt->actstrip= NULL;
1937 }       
1938
1939 /* ************ READ NODE TREE *************** */
1940
1941 /* singe node tree (also used for material/scene trees), ntree is not NULL */
1942 static void lib_link_ntree(FileData *fd, ID *id, bNodeTree *ntree)
1943 {
1944         bNode *node;
1945         
1946         if(ntree->adt) lib_link_animdata(fd, &ntree->id, ntree->adt);
1947         
1948         for(node= ntree->nodes.first; node; node= node->next)
1949                 node->id= newlibadr_us(fd, id->lib, node->id);
1950 }
1951
1952 /* library ntree linking after fileread */
1953 static void lib_link_nodetree(FileData *fd, Main *main)
1954 {
1955         bNodeTree *ntree;
1956         
1957         /* only link ID pointers */
1958         for(ntree= main->nodetree.first; ntree; ntree= ntree->id.next) {
1959                 if(ntree->id.flag & LIB_NEEDLINK) {
1960                         ntree->id.flag -= LIB_NEEDLINK;
1961                         lib_link_ntree(fd, &ntree->id, ntree);
1962                 }
1963         }
1964 }
1965
1966 /* verify types for nodes and groups, all data has to be read */
1967 /* open = 0: appending/linking, open = 1: open new file (need to clean out dynamic
1968 * typedefs*/
1969 static void lib_verify_nodetree(Main *main, int open)
1970 {
1971         Scene *sce;
1972         Material *ma;
1973         Tex *tx;
1974         bNodeTree *ntree;
1975         
1976         /* this crashes blender on undo/redo
1977                 if(open==1) {
1978                         reinit_nodesystem();
1979                 }*/
1980         
1981         /* now create the own typeinfo structs an verify nodes */
1982         /* here we still assume no groups in groups */
1983         for(ntree= main->nodetree.first; ntree; ntree= ntree->id.next) {
1984                 ntreeVerifyTypes(ntree);        /* internal nodes, no groups! */
1985                 ntreeMakeOwnType(ntree);        /* for group usage */
1986         }
1987         
1988         /* now verify all types in material trees, groups are set OK now */
1989         for(ma= main->mat.first; ma; ma= ma->id.next) {
1990                 if(ma->nodetree)
1991                         ntreeVerifyTypes(ma->nodetree);
1992         }
1993         /* and scene trees */
1994         for(sce= main->scene.first; sce; sce= sce->id.next) {
1995                 if(sce->nodetree)
1996                         ntreeVerifyTypes(sce->nodetree);
1997         }
1998         /* and texture trees */
1999         for(tx= main->tex.first; tx; tx= tx->id.next) {
2000                 if(tx->nodetree)
2001                         ntreeVerifyTypes(tx->nodetree);
2002         }
2003 }
2004
2005
2006
2007 /* ntree itself has been read! */
2008 static void direct_link_nodetree(FileData *fd, bNodeTree *ntree)
2009 {
2010         /* note: writing and reading goes in sync, for speed */
2011         bNode *node;
2012         bNodeSocket *sock;
2013         bNodeLink *link;
2014         
2015         ntree->init= 0;         /* to set callbacks and force setting types */
2016         ntree->owntype= NULL;
2017         ntree->timecursor= NULL;
2018         
2019         ntree->adt= newdataadr(fd, ntree->adt);
2020         direct_link_animdata(fd, ntree->adt);
2021         
2022         link_list(fd, &ntree->nodes);
2023         for(node= ntree->nodes.first; node; node= node->next) {
2024                 if(node->type == NODE_DYNAMIC) {
2025                         node->custom1= 0;
2026                         node->custom1= BSET(node->custom1, NODE_DYNAMIC_LOADED);
2027                         node->typeinfo= NULL;
2028                 }
2029                 
2030                 node->storage= newdataadr(fd, node->storage);
2031                 if(node->storage) {
2032                         
2033                         /* could be handlerized at some point */
2034                         if(ntree->type==NTREE_SHADER && (node->type==SH_NODE_CURVE_VEC || node->type==SH_NODE_CURVE_RGB))
2035                                 direct_link_curvemapping(fd, node->storage);
2036                         else if(ntree->type==NTREE_COMPOSIT) {
2037                                 if( ELEM3(node->type, CMP_NODE_TIME, CMP_NODE_CURVE_VEC, CMP_NODE_CURVE_RGB))
2038                                         direct_link_curvemapping(fd, node->storage);
2039                                 else if(ELEM3(node->type, CMP_NODE_IMAGE, CMP_NODE_VIEWER, CMP_NODE_SPLITVIEWER))
2040                                         ((ImageUser *)node->storage)->ok= 1;
2041                         }
2042                         else if( ntree->type==NTREE_TEXTURE && (node->type==TEX_NODE_CURVE_RGB || node->type==TEX_NODE_CURVE_TIME) ) {
2043                                 direct_link_curvemapping(fd, node->storage);
2044                         }
2045                 }
2046                 link_list(fd, &node->inputs);
2047                 link_list(fd, &node->outputs);
2048         }
2049         link_list(fd, &ntree->links);
2050         
2051         /* and we connect the rest */
2052         for(node= ntree->nodes.first; node; node= node->next) {
2053                 node->preview= newimaadr(fd, node->preview);
2054                 node->lasty= 0;
2055                 for(sock= node->inputs.first; sock; sock= sock->next)
2056                         sock->link= newdataadr(fd, sock->link);
2057                 for(sock= node->outputs.first; sock; sock= sock->next)
2058                         sock->ns.data= NULL;
2059         }
2060         for(link= ntree->links.first; link; link= link->next) {
2061                 link->fromnode= newdataadr(fd, link->fromnode);
2062                 link->tonode= newdataadr(fd, link->tonode);
2063                 link->fromsock= newdataadr(fd, link->fromsock);
2064                 link->tosock= newdataadr(fd, link->tosock);
2065         }
2066         
2067         /* set selin and selout */
2068         for(node= ntree->nodes.first; node; node= node->next) {
2069                 for(sock= node->inputs.first; sock; sock= sock->next) {
2070                         if(sock->flag & SOCK_SEL) {
2071                                 ntree->selin= sock;
2072                                 break;
2073                         }
2074                 }
2075                 for(sock= node->outputs.first; sock; sock= sock->next) {
2076                         if(sock->flag & SOCK_SEL) {
2077                                 ntree->selout= sock;
2078                                 break;
2079                         }
2080                 }
2081         }
2082         
2083         /* type verification is in lib-link */
2084 }
2085
2086 /* ************ READ ARMATURE ***************** */
2087
2088 static void lib_link_constraints(FileData *fd, ID *id, ListBase *conlist)
2089 {
2090         bConstraint *con;
2091
2092         for (con = conlist->first; con; con=con->next) {
2093                 /* patch for error introduced by changing constraints (dunno how) */
2094                 /* if con->data type changes, dna cannot resolve the pointer! (ton) */
2095                 if(con->data==NULL) {
2096                         con->type= CONSTRAINT_TYPE_NULL;
2097                 }
2098                 /* own ipo, all constraints have it */
2099                 con->ipo= newlibadr_us(fd, id->lib, con->ipo); // XXX depreceated - old animation system
2100                 
2101                 switch (con->type) {
2102                 case CONSTRAINT_TYPE_PYTHON:
2103                         {
2104                                 bPythonConstraint *data= (bPythonConstraint*)con->data;
2105                                 bConstraintTarget *ct;
2106                                 
2107                                 for (ct= data->targets.first; ct; ct= ct->next)
2108                                         ct->tar = newlibadr(fd, id->lib, ct->tar);
2109                                         
2110                                 data->text = newlibadr(fd, id->lib, data->text);
2111                                 //IDP_LibLinkProperty(data->prop, (fd->flags & FD_FLAGS_SWITCH_ENDIAN), fd);
2112                         }
2113                         break;
2114                 case CONSTRAINT_TYPE_ACTION:
2115                         {
2116                                 bActionConstraint *data;
2117                                 data= ((bActionConstraint*)con->data);
2118                                 data->tar = newlibadr(fd, id->lib, data->tar);
2119                                 data->act = newlibadr(fd, id->lib, data->act);
2120                         }
2121                         break;
2122                 case CONSTRAINT_TYPE_LOCLIKE:
2123                         {
2124                                 bLocateLikeConstraint *data;
2125                                 data= ((bLocateLikeConstraint*)con->data);
2126                                 data->tar = newlibadr(fd, id->lib, data->tar);
2127                         }
2128                         break;
2129                 case CONSTRAINT_TYPE_ROTLIKE:
2130                         {
2131                                 bRotateLikeConstraint *data;
2132                                 data= ((bRotateLikeConstraint*)con->data);
2133                                 data->tar = newlibadr(fd, id->lib, data->tar);
2134                         }
2135                         break;
2136                 case CONSTRAINT_TYPE_SIZELIKE:
2137                         {
2138                                 bSizeLikeConstraint *data;
2139                                 data= ((bSizeLikeConstraint*)con->data);
2140                                 data->tar = newlibadr(fd, id->lib, data->tar);
2141                         }
2142                         break;
2143                 case CONSTRAINT_TYPE_KINEMATIC:
2144                         {
2145                                 bKinematicConstraint *data;
2146                                 data = ((bKinematicConstraint*)con->data);
2147                                 data->tar = newlibadr(fd, id->lib, data->tar);
2148                                 data->poletar = newlibadr(fd, id->lib, data->poletar);
2149                         }
2150                         break;
2151                 case CONSTRAINT_TYPE_TRACKTO:
2152                         {
2153                                 bTrackToConstraint *data;
2154                                 data = ((bTrackToConstraint*)con->data);
2155                                 data->tar = newlibadr(fd, id->lib, data->tar);
2156                         }
2157                         break;
2158                 case CONSTRAINT_TYPE_MINMAX:
2159                         {
2160                                 bMinMaxConstraint *data;
2161                                 data = ((bMinMaxConstraint*)con->data);
2162                                 data->tar = newlibadr(fd, id->lib, data->tar);
2163                         }
2164                         break;
2165                 case CONSTRAINT_TYPE_LOCKTRACK:
2166                         {
2167                                 bLockTrackConstraint *data;
2168                                 data= ((bLockTrackConstraint*)con->data);
2169                                 data->tar = newlibadr(fd, id->lib, data->tar);
2170                         }
2171                         break;
2172                 case CONSTRAINT_TYPE_FOLLOWPATH:
2173                         {
2174                                 bFollowPathConstraint *data;
2175                                 data= ((bFollowPathConstraint*)con->data);
2176                                 data->tar = newlibadr(fd, id->lib, data->tar);
2177                         }
2178                         break;
2179                 case CONSTRAINT_TYPE_STRETCHTO:
2180                         {
2181                                 bStretchToConstraint *data;
2182                                 data= ((bStretchToConstraint*)con->data);
2183                                 data->tar = newlibadr(fd, id->lib, data->tar);
2184                         }
2185                         break;
2186                 case CONSTRAINT_TYPE_RIGIDBODYJOINT:
2187                         {
2188                                 bRigidBodyJointConstraint *data;
2189                                 data= ((bRigidBodyJointConstraint*)con->data);
2190                                 data->tar = newlibadr(fd, id->lib, data->tar);
2191                         }
2192                         break;
2193                 case CONSTRAINT_TYPE_CLAMPTO:
2194                         {
2195                                 bClampToConstraint *data;
2196                                 data= ((bClampToConstraint*)con->data);
2197                                 data->tar = newlibadr(fd, id->lib, data->tar);
2198                         }
2199                         break;
2200                 case CONSTRAINT_TYPE_CHILDOF:
2201                         {
2202                                 bChildOfConstraint *data;
2203                                 data= ((bChildOfConstraint*)con->data);
2204                                 data->tar = newlibadr(fd, id->lib, data->tar);
2205                         }
2206                         break;
2207                 case CONSTRAINT_TYPE_TRANSFORM:
2208                         {
2209                                 bTransformConstraint *data;
2210                                 data= ((bTransformConstraint*)con->data);
2211                                 data->tar = newlibadr(fd, id->lib, data->tar);
2212                         }
2213                         break;
2214                 case CONSTRAINT_TYPE_DISTLIMIT:
2215                         {
2216                                 bDistLimitConstraint *data;
2217                                 data= ((bDistLimitConstraint*)con->data);
2218                                 data->tar = newlibadr(fd, id->lib, data->tar);
2219                         }
2220                         break;
2221                 case CONSTRAINT_TYPE_SHRINKWRAP:
2222                         {
2223                                 bShrinkwrapConstraint *data;
2224                                 data= ((bShrinkwrapConstraint*)con->data);
2225                                 data->target = newlibadr(fd, id->lib, data->target);
2226                         }
2227                         break;
2228                 case CONSTRAINT_TYPE_NULL:
2229                         break;
2230                 }
2231         }
2232 }
2233
2234 static void direct_link_constraints(FileData *fd, ListBase *lb)
2235 {
2236         bConstraint *cons;
2237
2238         link_list(fd, lb);
2239         for (cons=lb->first; cons; cons=cons->next) {
2240                 cons->data = newdataadr(fd, cons->data);
2241                 
2242                 if (cons->type == CONSTRAINT_TYPE_PYTHON) {
2243                         bPythonConstraint *data= cons->data;
2244                         
2245                         link_list(fd, &data->targets);
2246                         
2247                         data->prop = newdataadr(fd, data->prop);
2248                         if (data->prop)
2249                                 IDP_DirectLinkProperty(data->prop, (fd->flags & FD_FLAGS_SWITCH_ENDIAN), fd);
2250                 }
2251         }
2252 }
2253
2254 static void lib_link_pose(FileData *fd, Object *ob, bPose *pose)
2255 {
2256         bPoseChannel *pchan;
2257         bArmature *arm= ob->data;
2258         int rebuild;
2259         
2260         if (!pose || !arm)
2261                 return;
2262         
2263         /* always rebuild to match proxy or lib changes */
2264         rebuild= ob->proxy || (ob->id.lib==NULL && arm->id.lib);
2265
2266         for (pchan = pose->chanbase.first; pchan; pchan=pchan->next) {
2267                 lib_link_constraints(fd, (ID *)ob, &pchan->constraints);
2268                 
2269                 /* hurms... loop in a loop, but yah... later... (ton) */
2270                 pchan->bone= get_named_bone(arm, pchan->name);
2271                 
2272                 pchan->custom= newlibadr(fd, arm->id.lib, pchan->custom);
2273                 if(pchan->bone==NULL)
2274                         rebuild= 1;
2275                 else if(ob->id.lib==NULL && arm->id.lib) {
2276                         /* local pose selection copied to armature, bit hackish */
2277                         pchan->bone->flag &= ~(BONE_SELECTED|BONE_ACTIVE);
2278                         pchan->bone->flag |= pchan->selectflag;
2279                 }
2280         }
2281         
2282         if(rebuild) {
2283                 ob->recalc= OB_RECALC;
2284                 pose->flag |= POSE_RECALC;
2285         }
2286 }
2287
2288 static void lib_link_armature(FileData *fd, Main *main)
2289 {
2290         bArmature *arm;
2291
2292         arm= main->armature.first;
2293
2294         while(arm) {
2295                 if(arm->id.flag & LIB_NEEDLINK) {
2296                         arm->id.flag -= LIB_NEEDLINK;
2297                 }
2298                 arm= arm->id.next;
2299         }
2300 }
2301
2302 static void direct_link_bones(FileData *fd, Bone* bone)
2303 {
2304         Bone    *child;
2305
2306         bone->parent= newdataadr(fd, bone->parent);
2307
2308         link_list(fd, &bone->childbase);
2309
2310         for (child=bone->childbase.first; child; child=child->next) {
2311                 direct_link_bones(fd, child);
2312         }
2313 }
2314
2315 static void direct_link_armature(FileData *fd, bArmature *arm)
2316 {
2317         Bone    *bone;
2318
2319         link_list(fd, &arm->bonebase);
2320         arm->edbo= NULL;
2321         arm->sketch = NULL;
2322         
2323         bone=arm->bonebase.first;
2324         while (bone) {
2325                 direct_link_bones(fd, bone);
2326                 bone=bone->next;
2327         }
2328 }
2329
2330 /* ************ READ CAMERA ***************** */
2331
2332 static void lib_link_camera(FileData *fd, Main *main)
2333 {
2334         Camera *ca;
2335
2336         ca= main->camera.first;
2337         while(ca) {
2338                 if(ca->id.flag & LIB_NEEDLINK) {
2339                         if (ca->adt) lib_link_animdata(fd, &ca->id, ca->adt);
2340                         
2341                         ca->ipo= newlibadr_us(fd, ca->id.lib, ca->ipo); // XXX depreceated - old animation system
2342                         
2343                         ca->dof_ob= newlibadr_us(fd, ca->id.lib, ca->dof_ob);
2344                         
2345                         ca->id.flag -= LIB_NEEDLINK;
2346                 }
2347                 ca= ca->id.next;
2348         }
2349 }
2350
2351 static void direct_link_camera(FileData *fd, Camera *ca)
2352 {
2353         ca->adt= newdataadr(fd, ca->adt);
2354         direct_link_animdata(fd, ca->adt);
2355 }
2356
2357
2358 /* ************ READ LAMP ***************** */
2359
2360 static void lib_link_lamp(FileData *fd, Main *main)
2361 {
2362         Lamp *la;
2363         MTex *mtex;
2364         int a;
2365
2366         la= main->lamp.first;
2367         while(la) {
2368                 if(la->id.flag & LIB_NEEDLINK) {
2369                         if (la->adt) lib_link_animdata(fd, &la->id, la->adt);
2370                         
2371                         for(a=0; a<MAX_MTEX; a++) {
2372                                 mtex= la->mtex[a];
2373                                 if(mtex) {
2374                                         mtex->tex= newlibadr_us(fd, la->id.lib, mtex->tex);
2375                                         mtex->object= newlibadr(fd, la->id.lib, mtex->object);
2376                                 }
2377                         }
2378                         
2379                         la->ipo= newlibadr_us(fd, la->id.lib, la->ipo); // XXX depreceated - old animation system
2380                         
2381                         la->id.flag -= LIB_NEEDLINK;
2382                 }
2383                 la= la->id.next;
2384         }
2385 }
2386
2387 static void direct_link_lamp(FileData *fd, Lamp *la)
2388 {
2389         int a;
2390         
2391         la->adt= newdataadr(fd, la->adt);
2392         direct_link_animdata(fd, la->adt);
2393
2394         for(a=0; a<MAX_MTEX; a++) {
2395                 la->mtex[a]= newdataadr(fd, la->mtex[a]);
2396         }
2397         
2398         la->curfalloff= newdataadr(fd, la->curfalloff);
2399         if(la->curfalloff)
2400                 direct_link_curvemapping(fd, la->curfalloff);
2401         
2402         la->preview = direct_link_preview_image(fd, la->preview);
2403 }
2404
2405 /* ************ READ keys ***************** */
2406
2407 static void lib_link_key(FileData *fd, Main *main)
2408 {
2409         Key *key;
2410
2411         key= main->key.first;
2412         while(key) {
2413                 if(key->id.flag & LIB_NEEDLINK) {
2414                         if(key->adt) lib_link_animdata(fd, &key->id, key->adt);
2415                         
2416                         key->ipo= newlibadr_us(fd, key->id.lib, key->ipo); // XXX depreceated - old animation system
2417                         key->from= newlibadr(fd, key->id.lib, key->from);
2418
2419                         key->id.flag -= LIB_NEEDLINK;
2420                 }
2421                 key= key->id.next;
2422         }
2423 }
2424
2425 static void switch_endian_keyblock(Key *key, KeyBlock *kb)
2426 {
2427         int elemsize, a, b;
2428         char *data, *poin, *cp;
2429
2430         elemsize= key->elemsize;
2431         data= kb->data;
2432
2433         for(a=0; a<kb->totelem; a++) {
2434
2435                 cp= key->elemstr;
2436                 poin= data;
2437
2438                 while( cp[0] ) {        /* cp[0]==amount */
2439
2440                         switch(cp[1]) {         /* cp[1]= type */
2441                         case IPO_FLOAT:
2442                         case IPO_BPOINT:
2443                         case IPO_BEZTRIPLE:
2444                                 b= cp[0];
2445                                 while(b--) {
2446                                         SWITCH_INT((*poin));
2447                                         poin+= 4;
2448                                 }
2449                                 break;
2450                         }
2451
2452                         cp+= 2;
2453
2454                 }
2455                 data+= elemsize;
2456         }
2457 }
2458
2459 static void direct_link_key(FileData *fd, Key *key)
2460 {
2461         KeyBlock *kb;
2462
2463         link_list(fd, &(key->block));
2464
2465         key->adt= newdataadr(fd, key->adt);
2466         direct_link_animdata(fd, key->adt);
2467         
2468         key->refkey= newdataadr(fd, key->refkey);
2469
2470         kb= key->block.first;
2471         while(kb) {
2472
2473                 kb->data= newdataadr(fd, kb->data);
2474
2475                 if(fd->flags & FD_FLAGS_SWITCH_ENDIAN)
2476                         switch_endian_keyblock(key, kb);
2477
2478                 kb= kb->next;
2479         }
2480 }
2481
2482 /* ************ READ mball ***************** */
2483
2484 static void lib_link_mball(FileData *fd, Main *main)
2485 {
2486         MetaBall *mb;
2487         int a;
2488
2489         mb= main->mball.first;
2490         while(mb) {
2491                 if(mb->id.flag & LIB_NEEDLINK) {
2492                         if (mb->adt) lib_link_animdata(fd, &mb->id, mb->adt);
2493                         
2494                         for(a=0; a<mb->totcol; a++) mb->mat[a]= newlibadr_us(fd, mb->id.lib, mb->mat[a]);
2495
2496                         mb->ipo= newlibadr_us(fd, mb->id.lib, mb->ipo); // XXX depreceated - old animation system
2497
2498                         mb->id.flag -= LIB_NEEDLINK;
2499                 }
2500                 mb= mb->id.next;
2501         }
2502 }
2503
2504 static void direct_link_mball(FileData *fd, MetaBall *mb)
2505 {
2506         mb->adt= newdataadr(fd, mb->adt);
2507         direct_link_animdata(fd, mb->adt);
2508         
2509         mb->mat= newdataadr(fd, mb->mat);
2510         test_pointer_array(fd, (void **)&mb->mat);
2511
2512         link_list(fd, &(mb->elems));
2513
2514         mb->disp.first= mb->disp.last= NULL;
2515         mb->editelems= NULL;
2516         mb->bb= NULL;
2517 /*      mb->edit_elems.first= mb->edit_elems.last= NULL;*/
2518         mb->lastelem= NULL;
2519 }
2520
2521 /* ************ READ WORLD ***************** */
2522
2523 static void lib_link_world(FileData *fd, Main *main)
2524 {
2525         World *wrld;
2526         MTex *mtex;
2527         int a;
2528
2529         wrld= main->world.first;
2530         while(wrld) {
2531                 if(wrld->id.flag & LIB_NEEDLINK) {
2532                         if (wrld->adt) lib_link_animdata(fd, &wrld->id, wrld->adt);
2533                         
2534                         wrld->ipo= newlibadr_us(fd, wrld->id.lib, wrld->ipo); // XXX depreceated - old animation system
2535                         
2536                         for(a=0; a<MAX_MTEX; a++) {
2537                                 mtex= wrld->mtex[a];
2538                                 if(mtex) {
2539                                         mtex->tex= newlibadr_us(fd, wrld->id.lib, mtex->tex);
2540                                         mtex->object= newlibadr(fd, wrld->id.lib, mtex->object);
2541                                 }
2542                         }
2543                         
2544                         wrld->id.flag -= LIB_NEEDLINK;
2545                 }
2546                 wrld= wrld->id.next;
2547         }
2548 }
2549
2550 static void direct_link_world(FileData *fd, World *wrld)
2551 {
2552         int a;
2553
2554         wrld->adt= newdataadr(fd, wrld->adt);
2555         direct_link_animdata(fd, wrld->adt);
2556
2557         for(a=0; a<MAX_MTEX; a++) {
2558                 wrld->mtex[a]= newdataadr(fd, wrld->mtex[a]);
2559         }
2560         wrld->preview = direct_link_preview_image(fd, wrld->preview);
2561 }
2562
2563
2564 /* ************ READ VFONT ***************** */
2565
2566 static void lib_link_vfont(FileData *fd, Main *main)
2567 {
2568         VFont *vf;
2569
2570         vf= main->vfont.first;
2571         while(vf) {
2572                 if(vf->id.flag & LIB_NEEDLINK) {
2573                         vf->id.flag -= LIB_NEEDLINK;
2574                 }
2575                 vf= vf->id.next;
2576         }
2577 }
2578
2579 static void direct_link_vfont(FileData *fd, VFont *vf)
2580 {
2581         vf->data= NULL;
2582         vf->packedfile= direct_link_packedfile(fd, vf->packedfile);
2583 }
2584
2585 /* ************ READ TEXT ****************** */
2586
2587 static void lib_link_text(FileData *fd, Main *main)
2588 {
2589         Text *text;
2590
2591         text= main->text.first;
2592         while(text) {
2593                 if(text->id.flag & LIB_NEEDLINK) {
2594                         text->id.flag -= LIB_NEEDLINK;
2595                 }
2596                 text= text->id.next;
2597         }
2598 }
2599
2600 static void direct_link_text(FileData *fd, Text *text)
2601 {
2602         TextLine *ln;
2603
2604         text->name= newdataadr(fd, text->name);
2605
2606         text->undo_pos= -1;
2607         text->undo_len= TXT_INIT_UNDO;
2608         text->undo_buf= MEM_mallocN(text->undo_len, "undo buf");
2609
2610         text->compiled= NULL;
2611
2612 /*
2613         if(text->flags & TXT_ISEXT) {
2614                 reopen_text(text);
2615         } else {
2616 */
2617
2618         link_list(fd, &text->lines);
2619         link_list(fd, &text->markers);
2620
2621         text->curl= newdataadr(fd, text->curl);
2622         text->sell= newdataadr(fd, text->sell);
2623
2624         ln= text->lines.first;
2625         while(ln) {
2626                 ln->line= newdataadr(fd, ln->line);
2627                 ln->format= NULL;
2628                 
2629                 if (ln->len != (int) strlen(ln->line)) {
2630                         printf("Error loading text, line lengths differ\n");
2631                         ln->len = strlen(ln->line);
2632                 }
2633
2634                 ln= ln->next;
2635         }
2636
2637         text->flags = (text->flags) & ~TXT_ISEXT;
2638
2639         text->id.us= 1;
2640 }
2641
2642 /* ************ READ IMAGE ***************** */
2643
2644 static void lib_link_image(FileData *fd, Main *main)
2645 {
2646         Image *ima;
2647
2648         ima= main->image.first;
2649         while (ima) {
2650                 if(ima->id.flag & LIB_NEEDLINK) {
2651                         if (ima->id.properties) IDP_LibLinkProperty(ima->id.properties, (fd->flags & FD_FLAGS_SWITCH_ENDIAN), fd);
2652
2653                         ima->id.flag -= LIB_NEEDLINK;
2654                 }
2655                 ima= ima->id.next;
2656         }
2657 }
2658
2659 static void link_ibuf_list(FileData *fd, ListBase *lb)
2660 {
2661         Link *ln, *prev;
2662         
2663         if(lb->first==NULL) return;
2664         
2665         lb->first= newimaadr(fd, lb->first);
2666         ln= lb->first;
2667         prev= NULL;
2668         while(ln) {
2669                 ln->next= newimaadr(fd, ln->next);
2670                 ln->prev= prev;
2671                 prev= ln;
2672                 ln= ln->next;
2673         }
2674         lb->last= prev;
2675 }
2676
2677 static void direct_link_image(FileData *fd, Image *ima)
2678 {
2679         /* for undo system, pointers could be restored */
2680         if(fd->imamap)
2681                 link_ibuf_list(fd, &ima->ibufs);
2682         else
2683                 ima->ibufs.first= ima->ibufs.last= NULL;
2684         
2685         /* if not restored, we keep the binded opengl index */
2686         if(ima->ibufs.first==NULL) {
2687                 ima->bindcode= 0;
2688                 ima->gputexture= NULL;
2689         }
2690         
2691         ima->anim= NULL;
2692         ima->rr= NULL;
2693         ima->repbind= NULL;
2694         ima->render_text= newdataadr(fd, ima->render_text);
2695         
2696         ima->packedfile = direct_link_packedfile(fd, ima->packedfile);
2697         ima->preview = direct_link_preview_image(fd, ima->preview);
2698         ima->ok= 1;
2699 }
2700
2701
2702 /* ************ READ CURVE ***************** */
2703
2704 static void lib_link_curve(FileData *fd, Main *main)
2705 {
2706         Curve *cu;
2707         int a;
2708
2709         cu= main->curve.first;
2710         while(cu) {
2711                 if(cu->id.flag & LIB_NEEDLINK) {
2712                         if(cu->adt) lib_link_animdata(fd, &cu->id, cu->adt);
2713
2714                         for(a=0; a<cu->totcol; a++) cu->mat[a]= newlibadr_us(fd, cu->id.lib, cu->mat[a]);
2715
2716                         cu->bevobj= newlibadr(fd, cu->id.lib, cu->bevobj);
2717                         cu->taperobj= newlibadr(fd, cu->id.lib, cu->taperobj);
2718                         cu->textoncurve= newlibadr(fd, cu->id.lib, cu->textoncurve);
2719                         cu->vfont= newlibadr_us(fd, cu->id.lib, cu->vfont);
2720                         cu->vfontb= newlibadr_us(fd, cu->id.lib, cu->vfontb);                   
2721                         cu->vfonti= newlibadr_us(fd, cu->id.lib, cu->vfonti);
2722                         cu->vfontbi= newlibadr_us(fd, cu->id.lib, cu->vfontbi);
2723
2724                         cu->ipo= newlibadr_us(fd, cu->id.lib, cu->ipo); // XXX depreceated - old animation system
2725                         cu->key= newlibadr_us(fd, cu->id.lib, cu->key);
2726
2727                         cu->id.flag -= LIB_NEEDLINK;
2728                 }
2729                 cu= cu->id.next;
2730         }
2731 }
2732
2733
2734 static void switch_endian_knots(Nurb *nu)
2735 {
2736         int len;
2737
2738         if(nu->knotsu) {
2739                 len= KNOTSU(nu);
2740                 while(len--) {
2741                         SWITCH_INT(nu->knotsu[len]);
2742                 }
2743         }
2744         if(nu->knotsv) {
2745                 len= KNOTSV(nu);
2746                 while(len--) {
2747                         SWITCH_INT(nu->knotsv[len]);
2748                 }
2749         }
2750 }
2751
2752 static void direct_link_curve(FileData *fd, Curve *cu)
2753 {
2754         Nurb *nu;
2755         TextBox *tb;
2756         
2757         cu->adt= newdataadr(fd, cu->adt);
2758         direct_link_animdata(fd, cu->adt);
2759         
2760         cu->mat= newdataadr(fd, cu->mat);
2761         test_pointer_array(fd, (void **)&cu->mat);
2762         cu->str= newdataadr(fd, cu->str);
2763         cu->strinfo= newdataadr(fd, cu->strinfo);       
2764         cu->tb= newdataadr(fd, cu->tb);
2765
2766         if(cu->vfont==0) link_list(fd, &(cu->nurb));
2767         else {
2768                 cu->nurb.first=cu->nurb.last= 0;
2769
2770                 tb= MEM_callocN(MAXTEXTBOX*sizeof(TextBox), "TextBoxread");
2771                 if (cu->tb) {
2772                         memcpy(tb, cu->tb, cu->totbox*sizeof(TextBox));
2773                         MEM_freeN(cu->tb);
2774                         cu->tb= tb;                     
2775                 } else {
2776                         cu->totbox = 1;
2777                         cu->actbox = 1;
2778                         cu->tb = tb;
2779                         cu->tb[0].w = cu->linewidth;
2780                 }               
2781                 if (cu->wordspace == 0.0) cu->wordspace = 1.0;
2782         }
2783
2784         cu->bev.first=cu->bev.last= NULL;
2785         cu->disp.first=cu->disp.last= NULL;
2786         cu->editnurb= NULL;
2787         cu->lastselbp= NULL;
2788         cu->path= NULL;
2789         cu->editfont= NULL;
2790         
2791         nu= cu->nurb.first;
2792         while(nu) {
2793                 nu->bezt= newdataadr(fd, nu->bezt);
2794                 nu->bp= newdataadr(fd, nu->bp);
2795                 nu->knotsu= newdataadr(fd, nu->knotsu);
2796                 nu->knotsv= newdataadr(fd, nu->knotsv);
2797                 if (cu->vfont==0) nu->charidx= nu->mat_nr;
2798
2799                 if(fd->flags & FD_FLAGS_SWITCH_ENDIAN) {
2800                         switch_endian_knots(nu);
2801                 }
2802
2803                 nu= nu->next;
2804         }
2805         cu->bb= NULL;
2806 }
2807
2808 /* ************ READ TEX ***************** */
2809
2810 static void lib_link_texture(FileData *fd, Main *main)
2811 {
2812         Tex *tex;
2813
2814         tex= main->tex.first;
2815         while(tex) {
2816                 if(tex->id.flag & LIB_NEEDLINK) {
2817                         if(tex->adt) lib_link_animdata(fd, &tex->id, tex->adt);
2818
2819                         tex->ima= newlibadr_us(fd, tex->id.lib, tex->ima);
2820                         tex->ipo= newlibadr_us(fd, tex->id.lib, tex->ipo);
2821                         if(tex->env) tex->env->object= newlibadr(fd, tex->id.lib, tex->env->object);
2822                         if(tex->pd) {
2823                                 tex->pd->object= newlibadr(fd, tex->id.lib, tex->pd->object);
2824                                 tex->pd->psys= newlibadr(fd, tex->id.lib, tex->pd->psys);
2825                         }
2826                         if(tex->vd) tex->vd->object= newlibadr(fd, tex->id.lib, tex->vd->object);
2827
2828                         if(tex->nodetree)
2829                                 lib_link_ntree(fd, &tex->id, tex->nodetree);
2830                         
2831                         tex->id.flag -= LIB_NEEDLINK;
2832                 }
2833                 tex= tex->id.next;
2834         }
2835 }
2836
2837 static void direct_link_texture(FileData *fd, Tex *tex)
2838 {
2839         tex->adt= newdataadr(fd, tex->adt);
2840         direct_link_animdata(fd, tex->adt);
2841         
2842         tex->plugin= newdataadr(fd, tex->plugin);
2843         if(tex->plugin) {
2844                 tex->plugin->handle= 0;
2845                 open_plugin_tex(tex->plugin);
2846                 /* initialize data for this instance, if an initialization
2847                  * function exists.
2848                  */
2849                 if (tex->plugin->instance_init)
2850                         tex->plugin->instance_init((void *) tex->plugin->data);
2851         }
2852         tex->coba= newdataadr(fd, tex->coba);
2853         tex->env= newdataadr(fd, tex->env);
2854         if(tex->env) {
2855                 tex->env->ima= NULL;
2856                 memset(tex->env->cube, 0, 6*sizeof(void *));
2857                 tex->env->ok= 0;
2858         }
2859         tex->pd= newdataadr(fd, tex->pd);
2860         if(tex->pd) {
2861                 tex->pd->point_tree = NULL;
2862                 tex->pd->coba= newdataadr(fd, tex->pd->coba);
2863         }
2864         
2865         tex->vd= newdataadr(fd, tex->vd);
2866         if(tex->vd) {
2867                 tex->vd->dataset = NULL;
2868         }
2869         
2870         tex->nodetree= newdataadr(fd, tex->nodetree);
2871         if(tex->nodetree)
2872                 direct_link_nodetree(fd, tex->nodetree);
2873         
2874         tex->preview = direct_link_preview_image(fd, tex->preview);
2875
2876         tex->iuser.ok= 1;
2877 }
2878
2879
2880
2881 /* ************ READ MATERIAL ***************** */
2882
2883 static void lib_link_material(FileData *fd, Main *main)
2884 {
2885         Material *ma;
2886         MTex *mtex;
2887         int a;
2888
2889         ma= main->mat.first;
2890         while(ma) {
2891                 if(ma->id.flag & LIB_NEEDLINK) {
2892                         if(ma->adt) lib_link_animdata(fd, &ma->id, ma->adt);
2893
2894                         /*Link ID Properties -- and copy this comment EXACTLY for easy finding
2895                         of library blocks that implement this.*/
2896                         if (ma->id.properties) IDP_LibLinkProperty(ma->id.properties, (fd->flags & FD_FLAGS_SWITCH_ENDIAN), fd);
2897
2898                         ma->ipo= newlibadr_us(fd, ma->id.lib, ma->ipo);
2899                         ma->group= newlibadr_us(fd, ma->id.lib, ma->group);
2900                         
2901                         for(a=0; a<MAX_MTEX; a++) {
2902                                 mtex= ma->mtex[a];
2903                                 if(mtex) {
2904                                         mtex->tex= newlibadr_us(fd, ma->id.lib, mtex->tex);
2905                                         mtex->object= newlibadr(fd, ma->id.lib, mtex->object);
2906                                 }
2907                         }
2908                         
2909                         if(ma->nodetree)
2910                                 lib_link_ntree(fd, &ma->id, ma->nodetree);
2911                         
2912                         ma->id.flag -= LIB_NEEDLINK;
2913                 }
2914                 ma= ma->id.next;
2915         }
2916 }
2917
2918 static void direct_link_material(FileData *fd, Material *ma)
2919 {
2920         int a;
2921
2922         ma->adt= newdataadr(fd, ma->adt);
2923         direct_link_animdata(fd, ma->adt);
2924         
2925         for(a=0; a<MAX_MTEX; a++) {
2926                 ma->mtex[a]= newdataadr(fd, ma->mtex[a]);
2927         }
2928
2929         ma->ramp_col= newdataadr(fd, ma->ramp_col);
2930         ma->ramp_spec= newdataadr(fd, ma->ramp_spec);
2931         
2932         ma->nodetree= newdataadr(fd, ma->nodetree);
2933         if(ma->nodetree)
2934                 direct_link_nodetree(fd, ma->nodetree);
2935
2936         ma->preview = direct_link_preview_image(fd, ma->preview);
2937         ma->gpumaterial.first = ma->gpumaterial.last = NULL;
2938 }
2939
2940 /* ************ READ PARTICLE SETTINGS ***************** */
2941
2942 static void direct_link_pointcache(FileData *fd, PointCache *cache)
2943 {
2944         if((cache->flag & PTCACHE_DISK_CACHE)==0) {
2945                 PTCacheMem *pm;
2946                 int i;
2947
2948                 link_list(fd, &cache->mem_cache);
2949
2950                 pm = cache->mem_cache.first;
2951
2952                 for(; pm; pm=pm->next) {
2953                         if(pm->index_array)
2954                                 pm->index_array = newdataadr(fd, pm->index_array);
2955                         
2956                         for(i=0; i<BPHYS_TOT_DATA; i++) {
2957                                 if(pm->data[i] && pm->data_types & (1<<i))
2958                                         pm->data[i] = newdataadr(fd, pm->data[i]);
2959                         }
2960                 }
2961         }
2962         else
2963                 cache->mem_cache.first = cache->mem_cache.last = NULL;
2964
2965         cache->flag &= ~(PTCACHE_SIMULATION_VALID|PTCACHE_BAKE_EDIT_ACTIVE);
2966         cache->simframe= 0;
2967 }
2968
2969 static void direct_link_pointcache_list(FileData *fd, ListBase *ptcaches, PointCache **ocache)
2970 {
2971         PointCache *cache;
2972
2973         if(ptcaches->first) {
2974                 link_list(fd, ptcaches);
2975                 for(cache=ptcaches->first; cache; cache=cache->next)
2976                         direct_link_pointcache(fd, cache);
2977
2978                 *ocache = newdataadr(fd, *ocache);
2979         }
2980         else if(*ocache) {
2981                 /* old "single" caches need to be linked too */
2982                 *ocache = newdataadr(fd, *ocache);
2983                 direct_link_pointcache(fd, *ocache);
2984
2985                 ptcaches->first = ptcaches->last = *ocache;
2986         }
2987 }
2988
2989 static void lib_link_particlesettings(FileData *fd, Main *main)
2990 {
2991         ParticleSettings *part;
2992
2993         part= main->particle.first;
2994         while(part) {
2995                 if(part->id.flag & LIB_NEEDLINK) {
2996                         if (part->adt) lib_link_animdata(fd, &part->id, part->adt);
2997                         part->ipo= newlibadr_us(fd, part->id.lib, part->ipo); // XXX depreceated - old animation system
2998                         
2999                         part->dup_ob = newlibadr(fd, part->id.lib, part->dup_ob);
3000                         part->dup_group = newlibadr(fd, part->id.lib, part->dup_group);
3001                         part->eff_group = newlibadr(fd, part->id.lib, part->eff_group);
3002                         part->bb_ob = newlibadr(fd, part->id.lib, part->bb_ob);
3003                         if(part->boids) {
3004                                 BoidState *state = part->boids->states.first;
3005                                 BoidRule *rule;
3006                                 for(; state; state=state->next) {
3007                                         rule = state->rules.first;
3008                                 for(; rule; rule=rule->next)
3009                                         switch(rule->type) {
3010                                                 case eBoidRuleType_Goal:
3011                                                 case eBoidRuleType_Avoid:
3012                                                 {
3013                                                         BoidRuleGoalAvoid *brga = (BoidRuleGoalAvoid*)rule;
3014                                                         brga->ob = newlibadr(fd, part->id.lib, brga->ob);
3015                                                         break;
3016                                                 }
3017                                                 case eBoidRuleType_FollowLeader:
3018                                                 {
3019                                                         BoidRuleFollowLeader *brfl = (BoidRuleFollowLeader*)rule;
3020                                                         brfl->ob = newlibadr(fd, part->id.lib, brfl->ob);
3021                                                         break;
3022                                                 }
3023                                         }
3024                                 }
3025                         }
3026                         part->id.flag -= LIB_NEEDLINK;
3027                 }
3028                 part= part->id.next;
3029         }
3030 }
3031
3032 static void direct_link_particlesettings(FileData *fd, ParticleSettings *part)
3033 {
3034         part->adt= newdataadr(fd, part->adt);
3035         part->pd= newdataadr(fd, part->pd);
3036         part->pd2= newdataadr(fd, part->pd2);
3037
3038         part->boids= newdataadr(fd, part->boids);
3039
3040         if(part->boids) {
3041                 BoidState *state;
3042                 link_list(fd, &part->boids->states);
3043                 
3044                 for(state=part->boids->states.first; state; state=state->next) {
3045                         link_list(fd, &state->rules);
3046                         link_list(fd, &state->conditions);
3047                         link_list(fd, &state->actions);
3048                 }
3049         }
3050 }
3051
3052 static void lib_link_particlesystems(FileData *fd, Object *ob, ID *id, ListBase *particles)
3053 {
3054         ParticleSystem *psys, *psysnext;
3055         int a;
3056
3057         for(psys=particles->first; psys; psys=psysnext){
3058                 ParticleData *pa;
3059                 
3060                 psysnext= psys->next;
3061                 
3062                 psys->part = newlibadr_us(fd, id->lib, psys->part);
3063                 if(psys->part) {
3064                         ParticleTarget *pt = psys->targets.first;
3065
3066                         for(; pt; pt=pt->next)
3067                                 pt->ob=newlibadr(fd, id->lib, pt->ob);
3068
3069                         psys->target_ob = newlibadr(fd, id->lib, psys->target_ob);
3070
3071                         for(a=0,pa=psys->particles; a<psys->totpart; a++,pa++){
3072                                 pa->stick_ob=newlibadr(fd, id->lib, pa->stick_ob);
3073                         }
3074
3075
3076                 }
3077                 else {
3078                         /* particle modifier must be removed before particle system */
3079                         ParticleSystemModifierData *psmd= psys_get_modifier(ob,psys);
3080                         BLI_remlink(&ob->modifiers, psmd);
3081                         modifier_free((ModifierData *)psmd);
3082
3083                         BLI_remlink(particles, psys);
3084                         MEM_freeN(psys);
3085                 }
3086         }
3087 }
3088 static void direct_link_particlesystems(FileData *fd, ListBase *particles)
3089 {
3090         ParticleSystem *psys;
3091         ParticleData *pa;
3092         int a;
3093
3094         for(psys=particles->first; psys; psys=psys->next) {
3095                 psys->particles=newdataadr(fd,psys->particles);
3096                 
3097                 if(psys->particles && psys->particles->hair){
3098                         for(a=0,pa=psys->particles; a<psys->totpart; a++, pa++)
3099                                 pa->hair=newdataadr(fd,pa->hair);
3100                 }
3101                 
3102                 if(psys->particles && psys->particles->keys){
3103                         for(a=0,pa=psys->particles; a<psys->totpart; a++, pa++) {
3104                                 pa->keys= NULL;
3105                                 pa->totkey= 0;
3106                         }
3107
3108                         psys->flag &= ~PSYS_KEYED;
3109                 }
3110
3111                 if(psys->particles && psys->particles->boid) {
3112                         pa = psys->particles;
3113                         pa->boid = newdataadr(fd, pa->boid);
3114                         for(a=1,pa++; a<psys->totpart; a++, pa++)
3115                                 pa->boid = (pa-1)->boid + 1;
3116                 }
3117                 else {
3118                         for(a=0,pa=psys->particles; a<psys->totpart; a++, pa++)
3119                                 pa->boid = NULL;
3120                 }
3121
3122
3123                 psys->child=newdataadr(fd,psys->child);
3124                 psys->effectors.first=psys->effectors.last=0;
3125
3126                 psys->soft= newdataadr(fd, psys->soft);
3127                 if(psys->soft) {
3128                         SoftBody *sb = psys->soft;
3129                         sb->particles = psys;
3130                         sb->bpoint= NULL;       // init pointers so it gets rebuilt nicely
3131                         sb->bspring= NULL;
3132                         sb->scratch= NULL;
3133
3134                         direct_link_pointcache_list(fd, &sb->ptcaches, &sb->pointcache);
3135                 }
3136
3137                 link_list(fd, &psys->targets);
3138
3139                 psys->edit = 0;
3140                 psys->free_edit = NULL;
3141                 psys->pathcache = 0;
3142                 psys->childcache = 0;
3143                 psys->pathcachebufs.first = psys->pathcachebufs.last = 0;
3144                 psys->childcachebufs.first = psys->childcachebufs.last = 0;
3145                 psys->reactevents.first = psys->reactevents.last = 0;
3146
3147                 direct_link_pointcache_list(fd, &psys->ptcaches, &psys->pointcache);
3148
3149                 psys->tree = NULL;
3150         }
3151         return;
3152 }
3153
3154 /* ************ READ MESH ***************** */
3155
3156 static void lib_link_mtface(FileData *fd, Mesh *me, MTFace *mtface, int totface)
3157 {
3158         MTFace *tf= mtface;
3159         int i;
3160
3161         for (i=0; i<totface; i++, tf++) {
3162                 tf->tpage= newlibadr(fd, me->id.lib, tf->tpage);
3163                 if(tf->tpage && tf->tpage->id.us==0)
3164                         tf->tpage->id.us= 1;
3165         }
3166 }
3167
3168 static void lib_link_customdata_mtface(FileData *fd, Mesh *me, CustomData *fdata, int totface)
3169 {
3170         int i;  
3171         for(i=0; i<fdata->totlayer; i++) {
3172                 CustomDataLayer *layer = &fdata->layers[i];
3173                 
3174                 if(layer->type == CD_MTFACE)
3175                         lib_link_mtface(fd, me, layer->data, totface);
3176         }
3177
3178 }
3179
3180 static void lib_link_mesh(FileData *fd, Main *main)
3181 {
3182         Mesh *me;
3183
3184         me= main->mesh.first;
3185         while(me) {
3186                 if(me->id.flag & LIB_NEEDLINK) {
3187                         int i;
3188
3189                         /*Link ID Properties -- and copy this comment EXACTLY for easy finding
3190                         of library blocks that implement this.*/
3191                         if (me->id.properties) IDP_LibLinkProperty(me->id.properties, (fd->flags & FD_FLAGS_SWITCH_ENDIAN), fd);
3192
3193                         /* this check added for python created meshes */
3194                         if(me->mat) {
3195                                 for(i=0; i<me->totcol; i++) {
3196                                         me->mat[i]= newlibadr_us(fd, me->id.lib, me->mat[i]);
3197                                 }
3198                         }
3199                         else me->totcol= 0;
3200
3201                         me->ipo= newlibadr_us(fd, me->id.lib, me->ipo);
3202                         me->key= newlibadr_us(fd, me->id.lib, me->key);
3203                         me->texcomesh= newlibadr_us(fd, me->id.lib, me->texcomesh);
3204
3205                         lib_link_customdata_mtface(fd, me, &me->fdata, me->totface);
3206                         if(me->mr && me->mr->levels.first)
3207                                 lib_link_customdata_mtface(fd, me, &me->mr->fdata,
3208                                                            ((MultiresLevel*)me->mr->levels.first)->totface);
3209
3210                         me->id.flag -= LIB_NEEDLINK;
3211                 }
3212                 me= me->id.next;
3213         }
3214 }
3215
3216 static void direct_link_dverts(FileData *fd, int count, MDeformVert *mdverts)
3217 {
3218         int     i;
3219
3220         if (!mdverts)
3221                 return;
3222
3223         for (i=0; i<count; i++) {
3224                 mdverts[i].dw=newdataadr(fd, mdverts[i].dw);
3225                 if (!mdverts[i].dw)
3226                         mdverts[i].totweight=0;
3227         }
3228 }
3229
3230 static void direct_link_mdisps(FileData *fd, int count, MDisps *mdisps)
3231 {
3232         if(mdisps) {
3233                 int i;
3234
3235                 for(i = 0; i < count; ++i) {
3236                         mdisps[i].disps = newdataadr(fd, mdisps[i].disps);
3237                         if(!mdisps[i].disps)
3238                                 mdisps[i].totdisp = 0;
3239                 }
3240         }       
3241 }
3242
3243 static void direct_link_customdata(FileData *fd, CustomData *data, int count)
3244 {
3245         int i = 0;
3246
3247         data->layers= newdataadr(fd, data->layers);
3248
3249         while (i < data->totlayer) {
3250                 CustomDataLayer *layer = &data->layers[i];
3251
3252                 if (CustomData_verify_versions(data, i)) {
3253                         layer->data = newdataadr(fd, layer->data);
3254                         if(layer->type == CD_MDISPS)
3255                                 direct_link_mdisps(fd, count, layer->data);
3256                         i++;
3257                 }
3258         }
3259 }
3260
3261 static void direct_link_mesh(FileData *fd, Mesh *mesh)
3262 {
3263         mesh->mat= newdataadr(fd, mesh->mat);
3264         test_pointer_array(fd, (void **)&mesh->mat);
3265
3266         mesh->mvert= newdataadr(fd, mesh->mvert);
3267         mesh->medge= newdataadr(fd, mesh->medge);
3268         mesh->mface= newdataadr(fd, mesh->mface);
3269         mesh->tface= newdataadr(fd, mesh->tface);
3270         mesh->mtface= newdataadr(fd, mesh->mtface);
3271         mesh->mcol= newdataadr(fd, mesh->mcol);
3272         mesh->msticky= newdataadr(fd, mesh->msticky);
3273         mesh->dvert= newdataadr(fd, mesh->dvert);