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