Warning fixes, one actual bug found in sequencer sound wave drawing. Also
[blender-staging.git] / source / blender / blenloader / intern / readfile.c
1 /*
2  * $Id$
3  *
4  * ***** BEGIN GPL LICENSE BLOCK *****
5  *
6  * This program is free software; you can redistribute it and/or
7  * modify it under the terms of the GNU General Public License
8  * as published by the Free Software Foundation; either version 2
9  * of the License, or (at your option) any later version.
10  *
11  * This program is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14  * GNU General Public License for more details.
15  *
16  * You should have received a copy of the GNU General Public License
17  * along with this program; if not, write to the Free Software Foundation,
18  * Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
19  *
20  * The Original Code is Copyright (C) 2001-2002 by NaN Holding BV.
21  * All rights reserved.
22  *
23  *
24  * Contributor(s): Blender Foundation
25  *
26  * ***** END GPL LICENSE BLOCK *****
27  *
28  */
29
30 #include "zlib.h"
31
32 #include <limits.h>
33 #include <stdio.h> // for printf fopen fwrite fclose sprintf FILE
34 #include <stdlib.h> // for getenv atoi
35 #include <fcntl.h> // for open
36 #include <string.h> // for strrchr strncmp strstr
37 #include <math.h> // for fabs
38
39 #ifndef WIN32
40     #include <unistd.h> // for read close
41     #include <sys/param.h> // for MAXPATHLEN
42 #else
43     #include <io.h> // for open close read
44 #include "winsock2.h"
45 #include "BLI_winstuff.h"
46 #endif
47
48 #include "DNA_anim_types.h"
49 #include "DNA_action_types.h"
50 #include "DNA_armature_types.h"
51 #include "DNA_ID.h"
52 #include "DNA_actuator_types.h"
53 #include "DNA_boid_types.h"
54 #include "DNA_brush_types.h"
55 #include "DNA_camera_types.h"
56 #include "DNA_cloth_types.h"
57 #include "DNA_color_types.h"
58 #include "DNA_controller_types.h"
59 #include "DNA_constraint_types.h"
60 #include "DNA_curve_types.h"
61 #include "DNA_customdata_types.h"
62 #include "DNA_effect_types.h"
63 #include "DNA_fileglobal_types.h"
64 #include "DNA_genfile.h"
65 #include "DNA_group_types.h"
66 #include "DNA_gpencil_types.h"
67 #include "DNA_ipo_types.h"
68 #include "DNA_image_types.h"
69 #include "DNA_key_types.h"
70 #include "DNA_lattice_types.h"
71 #include "DNA_lamp_types.h"
72 #include "DNA_meta_types.h"
73 #include "DNA_material_types.h"
74 #include "DNA_mesh_types.h"
75 #include "DNA_meshdata_types.h"
76 #include "DNA_modifier_types.h"
77 #include "DNA_nla_types.h"
78 #include "DNA_node_types.h"
79 #include "DNA_object_types.h"
80 #include "DNA_object_force.h"
81 #include "DNA_object_fluidsim.h" // NT
82 #include "DNA_outliner_types.h"
83 #include "DNA_object_force.h"
84 #include "DNA_packedFile_types.h"
85 #include "DNA_particle_types.h"
86 #include "DNA_property_types.h"
87 #include "DNA_text_types.h"
88 #include "DNA_view3d_types.h"
89 #include "DNA_screen_types.h"
90 #include "DNA_sensor_types.h"
91 #include "DNA_sdna_types.h"
92 #include "DNA_scene_types.h"
93 #include "DNA_sequence_types.h"
94 #include "DNA_smoke_types.h"
95 #include "DNA_sound_types.h"
96 #include "DNA_space_types.h"
97 #include "DNA_texture_types.h"
98 #include "DNA_userdef_types.h"
99 #include "DNA_vfont_types.h"
100 #include "DNA_world_types.h"
101 #include "DNA_windowmanager_types.h"
102
103 #include "MEM_guardedalloc.h"
104 #include "BLI_blenlib.h"
105 #include "BLI_math.h"
106 #include "BLI_storage_types.h" // for relname flags
107
108 #include "BKE_animsys.h"
109 #include "BKE_anim.h"
110 #include "BKE_action.h"
111 #include "BKE_armature.h"
112 #include "BKE_brush.h"
113 #include "BKE_cdderivedmesh.h"
114 #include "BKE_cloth.h"
115 #include "BKE_colortools.h"
116 #include "BKE_constraint.h"
117 #include "BKE_context.h"
118 #include "BKE_curve.h"
119 #include "BKE_customdata.h"
120 #include "BKE_deform.h"
121 #include "BKE_depsgraph.h"
122 #include "BKE_effect.h" /* give_parteff */
123 #include "BKE_fcurve.h"
124 #include "BKE_global.h" // for G
125 #include "BKE_group.h"
126 #include "BKE_image.h"
127 #include "BKE_ipo.h" 
128 #include "BKE_lattice.h"
129 #include "BKE_library.h" // for wich_libbase
130 #include "BKE_main.h" // for Main
131 #include "BKE_mesh.h" // for ME_ defines (patching)
132 #include "BKE_modifier.h"
133 #include "BKE_multires.h"
134 #include "BKE_node.h" // for tree type defines
135 #include "BKE_object.h"
136 #include "BKE_paint.h"
137 #include "BKE_particle.h"
138 #include "BKE_pointcache.h"
139 #include "BKE_property.h" // for get_ob_property
140 #include "BKE_report.h"
141 #include "BKE_sca.h" // for init_actuator
142 #include "BKE_scene.h"
143 #include "BKE_screen.h"
144 #include "BKE_softbody.h"       // sbNew()
145 #include "BKE_bullet.h"         // bsbNew()
146 #include "BKE_sequencer.h"
147 #include "BKE_texture.h" // for open_plugin_tex
148 #include "BKE_utildefines.h" // SWITCH_INT DATA ENDB DNA1 O_BINARY GLOB USER TEST REND
149 #include "BKE_idprop.h"
150
151 #include "BKE_sound.h"
152
153 //XXX #include "BIF_butspace.h" // badlevel, for do_versions, patching event codes
154 //XXX #include "BIF_filelist.h" // badlevel too, where to move this? - elubie
155 //XXX #include "BIF_previewrender.h" // bedlelvel, for struct RenderInfo
156 #include "BLO_readfile.h"
157 #include "BLO_undofile.h"
158 #include "BLO_readblenfile.h" // streaming read pipe, for BLO_readblenfile BLO_readblenfilememory
159
160 #include "readfile.h"
161
162 #include "PIL_time.h"
163
164 #include <errno.h>
165
166 /*
167  Remark: still a weak point is the newadress() function, that doesnt solve reading from
168  multiple files at the same time
169
170  (added remark: oh, i thought that was solved? will look at that... (ton)
171
172 READ
173 - Existing Library (Main) push or free
174 - allocate new Main
175 - load file
176 - read SDNA
177 - for each LibBlock
178         - read LibBlock
179         - if a Library
180                 - make a new Main
181                 - attach ID's to it
182         - else
183                 - read associated 'direct data'
184                 - link direct data (internal and to LibBlock)
185 - read FileGlobal
186 - read USER data, only when indicated (file is ~/.B.blend or .B25.blend)
187 - free file
188 - per Library (per Main)
189         - read file
190         - read SDNA
191         - find LibBlocks and attach IDs to Main
192                 - if external LibBlock
193                         - search all Main's
194                                 - or it's already read,
195                                 - or not read yet
196                                 - or make new Main
197         - per LibBlock
198                 - read recursive
199                 - read associated direct data
200                 - link direct data (internal and to LibBlock)
201         - free file
202 - per Library with unread LibBlocks
203         - read file
204         - read SDNA
205         - per LibBlock
206                - read recursive
207                - read associated direct data
208                - link direct data (internal and to LibBlock)
209         - free file
210 - join all Mains
211 - link all LibBlocks and indirect pointers to libblocks
212 - initialize FileGlobal and copy pointers to Global
213 */
214
215 /* also occurs in library.c */
216 /* GS reads the memory pointed at in a specific ordering. There are,
217  * however two definitions for it. I have jotted them down here, both,
218  * but I think the first one is actually used. The thing is that
219  * big-endian systems might read this the wrong way round. OTOH, we
220  * constructed the IDs that are read out with this macro explicitly as
221  * well. I expect we'll sort it out soon... */
222
223 /* from blendef: */
224 #define GS(a)   (*((short *)(a)))
225
226 /* from misc_util: flip the bytes from x  */
227 /*  #define GS(x) (((unsigned char *)(x))[0] << 8 | ((unsigned char *)(x))[1]) */
228
229 // only used here in readfile.c
230 #define SWITCH_LONGINT(a) { \
231     char s_i, *p_i; \
232     p_i= (char *)&(a);  \
233     s_i=p_i[0]; p_i[0]=p_i[7]; p_i[7]=s_i; \
234     s_i=p_i[1]; p_i[1]=p_i[6]; p_i[6]=s_i; \
235     s_i=p_i[2]; p_i[2]=p_i[5]; p_i[5]=s_i; \
236     s_i=p_i[3]; p_i[3]=p_i[4]; p_i[4]=s_i; }
237
238 /***/
239
240 typedef struct OldNew {
241         void *old, *newp;
242         int nr;
243 } OldNew;
244
245 typedef struct OldNewMap {
246         OldNew *entries;
247         int nentries, entriessize;
248         int sorted;
249         int lasthit;
250 } OldNewMap;
251
252
253 /* local prototypes */
254 static void *read_struct(FileData *fd, BHead *bh, char *blockname);
255
256
257 static OldNewMap *oldnewmap_new(void) 
258 {
259         OldNewMap *onm= MEM_callocN(sizeof(*onm), "OldNewMap");
260         
261         onm->entriessize= 1024;
262         onm->entries= MEM_mallocN(sizeof(*onm->entries)*onm->entriessize, "OldNewMap.entries");
263         
264         return onm;
265 }
266
267 static int verg_oldnewmap(const void *v1, const void *v2)
268 {
269         const struct OldNew *x1=v1, *x2=v2;
270         
271         if( x1->old > x2->old) return 1;
272         else if( x1->old < x2->old) return -1;
273         return 0;
274 }
275
276
277 static void oldnewmap_sort(FileData *fd) 
278 {
279         qsort(fd->libmap->entries, fd->libmap->nentries, sizeof(OldNew), verg_oldnewmap);
280         fd->libmap->sorted= 1;
281 }
282
283 /* nr is zero for data, and ID code for libdata */
284 static void oldnewmap_insert(OldNewMap *onm, void *oldaddr, void *newaddr, int nr) 
285 {
286         OldNew *entry;
287
288         if(oldaddr==NULL || newaddr==NULL) return;
289         
290         if (onm->nentries==onm->entriessize) {
291                 int osize= onm->entriessize;
292                 OldNew *oentries= onm->entries;
293
294                 onm->entriessize*= 2;
295                 onm->entries= MEM_mallocN(sizeof(*onm->entries)*onm->entriessize, "OldNewMap.entries");
296
297                 memcpy(onm->entries, oentries, sizeof(*oentries)*osize);
298                 MEM_freeN(oentries);
299         }
300
301         entry= &onm->entries[onm->nentries++];
302         entry->old= oldaddr;
303         entry->newp= newaddr;
304         entry->nr= nr;
305 }
306
307 static void *oldnewmap_lookup_and_inc(OldNewMap *onm, void *addr) 
308 {
309         int i;
310
311         if (onm->lasthit<onm->nentries-1) {
312                 OldNew *entry= &onm->entries[++onm->lasthit];
313
314                 if (entry->old==addr) {
315                         entry->nr++;
316                         return entry->newp;
317                 }
318         }
319
320         for (i=0; i<onm->nentries; i++) {
321                 OldNew *entry= &onm->entries[i];
322
323                 if (entry->old==addr) {
324                         onm->lasthit= i;
325
326                         entry->nr++;
327                         return entry->newp;
328                 }
329         }
330
331         return NULL;
332 }
333
334 /* for libdata, nr has ID code, no increment */
335 static void *oldnewmap_liblookup(OldNewMap *onm, void *addr, void *lib) 
336 {
337         int i;
338         
339         if(addr==NULL) return NULL;
340         
341         /* lasthit works fine for non-libdata, linking there is done in same sequence as writing */
342         if(onm->sorted) {
343                 OldNew entry_s, *entry;
344                 
345                 entry_s.old= addr;
346                 
347                 entry= bsearch(&entry_s, onm->entries, onm->nentries, sizeof(OldNew), verg_oldnewmap);
348                 if(entry) {
349                         ID *id= entry->newp;
350                         
351                         if (id && (!lib || id->lib)) {
352                                 return entry->newp;
353                         }
354                 }
355         }
356         
357         for (i=0; i<onm->nentries; i++) {
358                 OldNew *entry= &onm->entries[i];
359
360                 if (entry->old==addr) {
361                         ID *id= entry->newp;
362
363                         if (id && (!lib || id->lib)) {
364                                 return entry->newp;
365                         }
366                 }
367         }
368
369         return NULL;
370 }
371
372 static void oldnewmap_free_unused(OldNewMap *onm) 
373 {
374         int i;
375
376         for (i=0; i<onm->nentries; i++) {
377                 OldNew *entry= &onm->entries[i];
378                 if (entry->nr==0) {
379                         MEM_freeN(entry->newp);
380                         entry->newp= NULL;
381                 }
382         }
383 }
384
385 static void oldnewmap_clear(OldNewMap *onm) 
386 {
387         onm->nentries= 0;
388         onm->lasthit= 0;
389 }
390
391 static void oldnewmap_free(OldNewMap *onm) 
392 {
393         MEM_freeN(onm->entries);
394         MEM_freeN(onm);
395 }
396
397 /***/
398
399 static void read_libraries(FileData *basefd, ListBase *mainlist);
400
401 /* ************ help functions ***************** */
402
403 static void add_main_to_main(Main *mainvar, Main *from)
404 {
405         ListBase *lbarray[MAX_LIBARRAY], *fromarray[MAX_LIBARRAY];
406         int a;
407
408         a= set_listbasepointers(mainvar, lbarray);
409         a= set_listbasepointers(from, fromarray);
410         while(a--) {
411                 addlisttolist(lbarray[a], fromarray[a]);
412         }
413 }
414
415 void blo_join_main(ListBase *mainlist)
416 {
417         Main *tojoin, *mainl;
418         
419         
420         mainl= mainlist->first;
421         while ((tojoin= mainl->next)) {
422                 add_main_to_main(mainl, tojoin);
423                 BLI_remlink(mainlist, tojoin);
424                 MEM_freeN(tojoin);
425         }
426 }
427
428 static void split_libdata(ListBase *lb, Main *first)
429 {
430         ListBase *lbn;
431         ID *id, *idnext;
432         Main *mainvar;
433
434         id= lb->first;
435         while(id) {
436                 idnext= id->next;
437                 if(id->lib) {
438                         mainvar= first;
439                         while(mainvar) {
440                                 if(mainvar->curlib==id->lib) {
441                                         lbn= wich_libbase(mainvar, GS(id->name));
442                                         BLI_remlink(lb, id);
443                                         BLI_addtail(lbn, id);
444                                         break;
445                                 }
446                                 mainvar= mainvar->next;
447                         }
448                         if(mainvar==0) printf("error split_libdata\n");
449                 }
450                 id= idnext;
451         }
452 }
453
454 void blo_split_main(ListBase *mainlist, Main *main)
455 {
456         ListBase *lbarray[MAX_LIBARRAY];
457         Library *lib;
458         int i;
459
460         mainlist->first= mainlist->last= main;
461         main->next= NULL;
462
463         if(main->library.first==NULL)
464                 return;
465         
466         for (lib= main->library.first; lib; lib= lib->id.next) {
467                 Main *libmain= MEM_callocN(sizeof(Main), "libmain");
468                 libmain->curlib= lib;
469                 BLI_addtail(mainlist, libmain);
470         }
471
472         i= set_listbasepointers(main, lbarray);
473         while(i--)
474                 split_libdata(lbarray[i], main->next);
475 }
476
477 /* removes things like /blah/blah/../../blah/ etc, then writes in *name the full path */
478 static void cleanup_path(const char *relabase, char *name)
479 {
480         char filename[FILE_MAXFILE];
481         
482         BLI_splitdirstring(name, filename);
483         BLI_cleanup_dir(relabase, name);
484         strcat(name, filename);
485 }
486
487 static void read_file_version(FileData *fd, Main *main)
488 {
489         BHead *bhead;
490         
491         for (bhead= blo_firstbhead(fd); bhead; bhead= blo_nextbhead(fd, bhead)) {
492                 if (bhead->code==GLOB) {
493                         FileGlobal *fg= read_struct(fd, bhead, "Global");
494                         if(fg) {
495                                 main->subversionfile= fg->subversion;
496                                 main->minversionfile= fg->minversion;
497                                 main->minsubversionfile= fg->minsubversion;
498                                 MEM_freeN(fg);
499                         }
500                         else if (bhead->code==ENDB)
501                                 break;
502                 }
503         }
504 }
505
506
507 static Main *blo_find_main(FileData *fd, ListBase *mainlist, const char *name, const char *relabase)
508 {
509         Main *m;
510         Library *lib;
511         char name1[FILE_MAXDIR+FILE_MAXFILE];
512         
513         strncpy(name1, name, sizeof(name1)-1);
514         cleanup_path(relabase, name1);
515 //      printf("blo_find_main: original in  %s\n", name);
516 //      printf("blo_find_main: converted to %s\n", name1);
517
518         for (m= mainlist->first; m; m= m->next) {
519                 char *libname= (m->curlib)?m->curlib->filename:m->name;
520                 
521                 if (BLI_streq(name1, libname)) {
522                         if(G.f & G_DEBUG) printf("blo_find_main: found library %s\n", libname);
523                         return m;
524                 }
525         }
526
527         m= MEM_callocN(sizeof(Main), "find_main");
528         BLI_addtail(mainlist, m);
529
530         lib= alloc_libblock(&m->library, ID_LI, "lib");
531         strncpy(lib->name, name, sizeof(lib->name)-1);
532         BLI_strncpy(lib->filename, name1, sizeof(lib->filename));
533         
534         m->curlib= lib;
535         
536         read_file_version(fd, m);
537         
538         if(G.f & G_DEBUG) printf("blo_find_main: added new lib %s\n", name);
539         return m;
540 }
541
542
543 /* ************ FILE PARSING ****************** */
544
545 static void switch_endian_bh4(BHead4 *bhead)
546 {
547         /* the ID_.. codes */
548         if((bhead->code & 0xFFFF)==0) bhead->code >>=16;
549
550         if (bhead->code != ENDB) {
551                 SWITCH_INT(bhead->len);
552                 SWITCH_INT(bhead->SDNAnr);
553                 SWITCH_INT(bhead->nr);
554         }
555 }
556
557 static void switch_endian_bh8(BHead8 *bhead)
558 {
559         /* the ID_.. codes */
560         if((bhead->code & 0xFFFF)==0) bhead->code >>=16;
561
562         if (bhead->code != ENDB) {
563                 SWITCH_INT(bhead->len);
564                 SWITCH_INT(bhead->SDNAnr);
565                 SWITCH_INT(bhead->nr);
566         }
567 }
568
569 static void bh4_from_bh8(BHead *bhead, BHead8 *bhead8, int do_endian_swap)
570 {
571         BHead4 *bhead4 = (BHead4 *) bhead;
572 #if defined(WIN32) && !defined(FREE_WINDOWS)
573         __int64 old;
574 #else
575         long long old;
576 #endif
577
578         bhead4->code= bhead8->code;
579         bhead4->len= bhead8->len;
580
581         if (bhead4->code != ENDB) {
582
583                 // why is this here ??
584                 if (do_endian_swap) {
585                         SWITCH_LONGINT(bhead8->old);
586                 }
587
588                 /* this patch is to avoid a long long being read from not-eight aligned positions
589                    is necessary on any modern 64bit architecture) */
590                 memcpy(&old, &bhead8->old, 8);
591                 bhead4->old = (int) (old >> 3);
592
593                 bhead4->SDNAnr= bhead8->SDNAnr;
594                 bhead4->nr= bhead8->nr;
595         }
596 }
597
598 static void bh8_from_bh4(BHead *bhead, BHead4 *bhead4)
599 {
600         BHead8 *bhead8 = (BHead8 *) bhead;
601
602         bhead8->code= bhead4->code;
603         bhead8->len= bhead4->len;
604
605         if (bhead8->code != ENDB) {
606                 bhead8->old= bhead4->old;
607                 bhead8->SDNAnr= bhead4->SDNAnr;
608                 bhead8->nr= bhead4->nr;
609         }
610 }
611
612 static BHeadN *get_bhead(FileData *fd)
613 {
614         BHead8 bhead8;
615         BHead4 bhead4;
616         BHead  bhead;
617         BHeadN *new_bhead = 0;
618         int readsize;
619         
620         if (fd) {
621                 if ( ! fd->eof) {
622
623                         /* not strictly needed but shuts valgrind up
624                          * since uninitialized memory gets compared */
625                         memset(&bhead8, 0, sizeof(BHead8));
626                         memset(&bhead4, 0, sizeof(BHead4));
627                         memset(&bhead,  0, sizeof(BHead));
628                         
629                         // First read the bhead structure.
630                         // Depending on the platform the file was written on this can
631                         // be a big or little endian BHead4 or BHead8 structure.
632
633                         // As usual 'ENDB' (the last *partial* bhead of the file)
634                         // needs some special handling. We don't want to EOF just yet.
635
636                         if (fd->flags & FD_FLAGS_FILE_POINTSIZE_IS_4) {
637                                 bhead4.code = DATA;
638                                 readsize = fd->read(fd, &bhead4, sizeof(bhead4));
639
640                                 if (readsize == sizeof(bhead4) || bhead4.code == ENDB) {
641                                         if (fd->flags & FD_FLAGS_SWITCH_ENDIAN) {
642                                                 switch_endian_bh4(&bhead4);
643                                         }
644
645                                         if (fd->flags & FD_FLAGS_POINTSIZE_DIFFERS) {
646                                                 bh8_from_bh4(&bhead, &bhead4);
647                                         } else {
648                                                 memcpy(&bhead, &bhead4, sizeof(bhead));
649                                         }
650                                 } else {
651                                         fd->eof = 1;
652                                         bhead.len= 0;
653                                 }
654                         } else {
655                                 bhead8.code = DATA;
656                                 readsize = fd->read(fd, &bhead8, sizeof(bhead8));
657
658                                 if (readsize == sizeof(bhead8) || bhead8.code == ENDB) {
659                                         if (fd->flags & FD_FLAGS_SWITCH_ENDIAN) {
660                                                 switch_endian_bh8(&bhead8);
661                                         }
662
663                                         if (fd->flags & FD_FLAGS_POINTSIZE_DIFFERS) {
664                                                 bh4_from_bh8(&bhead, &bhead8, (fd->flags & FD_FLAGS_SWITCH_ENDIAN));
665                                         } else {
666                                                 memcpy(&bhead, &bhead8, sizeof(bhead));
667                                         }
668                                 } else {
669                                         fd->eof = 1;
670                                         bhead.len= 0;
671                                 }
672                         }
673
674                         /* make sure people are not trying to pass bad blend files */
675                         if (bhead.len < 0) fd->eof = 1;
676
677                         // bhead now contains the (converted) bhead structure. Now read
678                         // the associated data and put everything in a BHeadN (creative naming !)
679
680                         if ( ! fd->eof) {
681                                 new_bhead = MEM_mallocN(sizeof(BHeadN) + bhead.len, "new_bhead");
682                                 if (new_bhead) {
683                                         new_bhead->next = new_bhead->prev = 0;
684                                         new_bhead->bhead = bhead;
685
686                                         readsize = fd->read(fd, new_bhead + 1, bhead.len);
687
688                                         if (readsize != bhead.len) {
689                                                 fd->eof = 1;
690                                                 MEM_freeN(new_bhead);
691                                                 new_bhead = 0;
692                                         }
693                                 } else {
694                                         fd->eof = 1;
695                                 }
696                         }
697                 }
698         }
699
700         // We've read a new block. Now add it to the list
701         // of blocks.
702
703         if (new_bhead) {
704                 BLI_addtail(&fd->listbase, new_bhead);
705         }
706
707         return(new_bhead);
708 }
709
710 BHead *blo_firstbhead(FileData *fd)
711 {
712         BHeadN *new_bhead;
713         BHead *bhead = 0;
714
715         // Rewind the file
716         // Read in a new block if necessary
717
718         new_bhead = fd->listbase.first;
719         if (new_bhead == 0) {
720                 new_bhead = get_bhead(fd);
721         }
722
723         if (new_bhead) {
724                 bhead = &new_bhead->bhead;
725         }
726
727         return(bhead);
728 }
729
730 BHead *blo_prevbhead(FileData *fd, BHead *thisblock)
731 {
732         BHeadN *bheadn= (BHeadN *) (((char *) thisblock) - GET_INT_FROM_POINTER( &((BHeadN*)0)->bhead) );
733         BHeadN *prev= bheadn->prev;
734
735         return prev?&prev->bhead:NULL;
736 }
737
738 BHead *blo_nextbhead(FileData *fd, BHead *thisblock)
739 {
740         BHeadN *new_bhead = NULL;
741         BHead *bhead = NULL;
742
743         if (thisblock) {
744                 // bhead is actually a sub part of BHeadN
745                 // We calculate the BHeadN pointer from the BHead pointer below
746                 new_bhead = (BHeadN *) (((char *) thisblock) - GET_INT_FROM_POINTER( &((BHeadN*)0)->bhead) );
747
748                 // get the next BHeadN. If it doesn't exist we read in the next one
749                 new_bhead = new_bhead->next;
750                 if (new_bhead == 0) {
751                         new_bhead = get_bhead(fd);
752                 }
753         }
754
755         if (new_bhead) {
756                 // here we do the reverse:
757                 // go from the BHeadN pointer to the BHead pointer
758                 bhead = &new_bhead->bhead;
759         }
760
761         return(bhead);
762 }
763
764 static void decode_blender_header(FileData *fd)
765 {
766         char header[SIZEOFBLENDERHEADER], num[4];
767         int readsize;
768
769         // read in the header data
770         readsize = fd->read(fd, header, sizeof(header));
771
772         if (readsize == sizeof(header)) {
773                 if(strncmp(header, "BLENDER", 7) == 0) {
774                         int remove_this_endian_test= 1;
775
776                         fd->flags |= FD_FLAGS_FILE_OK;
777
778                         // what size are pointers in the file ?
779                         if(header[7]=='_') {
780                                 fd->flags |= FD_FLAGS_FILE_POINTSIZE_IS_4;
781                                 if (sizeof(void *) != 4) {
782                                         fd->flags |= FD_FLAGS_POINTSIZE_DIFFERS;
783                                 }
784                         } else {
785                                 if (sizeof(void *) != 8) {
786                                         fd->flags |= FD_FLAGS_POINTSIZE_DIFFERS;
787                                 }
788                         }
789
790                         // is the file saved in a different endian
791                         // than we need ?
792                         if (((((char*)&remove_this_endian_test)[0]==1)?L_ENDIAN:B_ENDIAN) != ((header[8]=='v')?L_ENDIAN:B_ENDIAN)) {
793                                 fd->flags |= FD_FLAGS_SWITCH_ENDIAN;
794                         }
795
796                         // get the version number
797
798                         memcpy(num, header+9, 3);
799                         num[3] = 0;
800                         fd->fileversion = atoi(num);
801                 }
802         }
803 }
804
805 static int read_file_dna(FileData *fd)
806 {
807         BHead *bhead;
808
809         for (bhead= blo_firstbhead(fd); bhead; bhead= blo_nextbhead(fd, bhead)) {
810                 if (bhead->code==DNA1) {
811                         int do_endian_swap= (fd->flags&FD_FLAGS_SWITCH_ENDIAN)?1:0;
812
813                         fd->filesdna= DNA_sdna_from_data(&bhead[1], bhead->len, do_endian_swap);
814                         if (fd->filesdna) {
815                                 
816                                 fd->compflags= DNA_struct_get_compareflags(fd->filesdna, fd->memsdna);
817                                 /* used to retrieve ID names from (bhead+1) */
818                                 fd->id_name_offs= DNA_elem_offset(fd->filesdna, "ID", "char", "name[]");
819                         }
820
821                         return 1;
822                 } else if (bhead->code==ENDB)
823                         break;
824         }
825
826         return 0;
827 }
828
829 static int fd_read_from_file(FileData *filedata, void *buffer, unsigned int size)
830 {
831         int readsize = read(filedata->filedes, buffer, size);
832
833         if (readsize < 0) {
834                 readsize = EOF;
835         } else {
836                 filedata->seek += readsize;
837         }
838
839         return (readsize);
840 }
841
842 static int fd_read_gzip_from_file(FileData *filedata, void *buffer, unsigned int size)
843 {
844         int readsize = gzread(filedata->gzfiledes, buffer, size);
845
846         if (readsize < 0) {
847                 readsize = EOF;
848         } else {
849                 filedata->seek += readsize;
850         }
851
852         return (readsize);
853 }
854
855 static int fd_read_from_memory(FileData *filedata, void *buffer, unsigned int size)
856 {
857                 // don't read more bytes then there are available in the buffer
858         int readsize = MIN2(size, filedata->buffersize - filedata->seek);
859
860         memcpy(buffer, filedata->buffer + filedata->seek, readsize);
861         filedata->seek += readsize;
862
863         return (readsize);
864 }
865
866 static int fd_read_from_memfile(FileData *filedata, void *buffer, unsigned int size)
867 {
868         static unsigned int seek= 1<<30;        /* the current position */
869         static unsigned int offset= 0;          /* size of previous chunks */
870         static MemFileChunk *chunk=NULL;
871         unsigned int chunkoffset, readsize, totread;
872         
873         if(size==0) return 0;
874         
875         if(seek != (unsigned int)filedata->seek) {
876                 chunk= filedata->memfile->chunks.first;
877                 seek= 0;
878                 
879                 while(chunk) {
880                         if(seek + chunk->size > (unsigned) filedata->seek) break;
881                         seek+= chunk->size;
882                         chunk= chunk->next;
883                 }
884                 offset= seek;
885                 seek= filedata->seek;
886         }
887         
888         if(chunk) {
889                 totread= 0;
890
891                 do {
892                         /* first check if it's on the end if current chunk */
893                         if(seek-offset == chunk->size) {
894                                 offset+= chunk->size;
895                                 chunk= chunk->next;
896                         }
897
898                         /* debug, should never happen */
899                         if(chunk==NULL) {
900                                 printf("illegal read, chunk zero\n");
901                                 return 0;
902                         }
903
904                         chunkoffset= seek-offset;
905                         readsize= size-totread;
906
907                         /* data can be spread over multiple chunks, so clamp size
908                          * to within this chunk, and then it will read further in
909                          * the next chunk */
910                         if(chunkoffset+readsize > chunk->size)
911                                 readsize= chunk->size-chunkoffset;
912
913                         memcpy((char*)buffer+totread, chunk->buf+chunkoffset, readsize);
914                         totread += readsize;
915                         filedata->seek += readsize;
916                         seek += readsize;
917                 } while(totread < size);
918                 
919                 return totread;
920         }
921
922         return 0;
923 }
924
925 static FileData *filedata_new(void)
926 {
927         FileData *fd = MEM_callocN(sizeof(FileData), "FileData");
928
929         fd->filedes = -1;
930         fd->gzfiledes = NULL;
931
932                 /* XXX, this doesn't need to be done all the time,
933                  * but it keeps us reentrant,  remove once we have
934                  * a lib that provides a nice lock. - zr
935                  */
936         fd->memsdna = DNA_sdna_from_data(DNAstr,  DNAlen,  0);
937
938         fd->datamap = oldnewmap_new();
939         fd->globmap = oldnewmap_new();
940         fd->libmap = oldnewmap_new();
941
942         return fd;
943 }
944
945 static FileData *blo_decode_and_check(FileData *fd, ReportList *reports)
946 {
947         decode_blender_header(fd);
948
949         if (fd->flags & FD_FLAGS_FILE_OK) {
950                 if (!read_file_dna(fd)) {
951                         BKE_report(reports, RPT_ERROR, "File incomplete");
952                         blo_freefiledata(fd);
953                         fd= NULL;
954                 }
955         } 
956         else {
957                 BKE_report(reports, RPT_ERROR, "File is not a Blender file");
958                 blo_freefiledata(fd);
959                 fd= NULL;
960         }
961
962         return fd;
963 }
964
965 /* cannot be called with relative paths anymore! */
966 /* on each new library added, it now checks for the current FileData and expands relativeness */
967 FileData *blo_openblenderfile(char *name, ReportList *reports)
968 {
969         gzFile gzfile;
970         
971         gzfile= gzopen(name, "rb");
972
973         if (NULL == gzfile) {
974                 BKE_report(reports, RPT_ERROR, "Unable to open");
975                 return NULL;
976         } else {
977                 FileData *fd = filedata_new();
978                 fd->gzfiledes = gzfile;
979                 fd->read = fd_read_gzip_from_file;
980
981                 /* needed for library_append and read_libraries */
982                 BLI_strncpy(fd->relabase, name, sizeof(fd->relabase));
983
984                 return blo_decode_and_check(fd, reports);
985         }
986 }
987
988 FileData *blo_openblendermemory(void *mem, int memsize, ReportList *reports)
989 {
990         if (!mem || memsize<SIZEOFBLENDERHEADER) {
991                 BKE_report(reports, RPT_ERROR, (mem)? "Unable to read": "Unable to open");
992                 return NULL;
993         } else {
994                 FileData *fd= filedata_new();
995                 fd->buffer= mem;
996                 fd->buffersize= memsize;
997                 fd->read= fd_read_from_memory;
998                 fd->flags|= FD_FLAGS_NOT_MY_BUFFER;
999
1000                 return blo_decode_and_check(fd, reports);
1001         }
1002 }
1003
1004 FileData *blo_openblendermemfile(MemFile *memfile, ReportList *reports)
1005 {
1006         if (!memfile) {
1007                 BKE_report(reports, RPT_ERROR, "Unable to open");
1008                 return NULL;
1009         } else {
1010                 FileData *fd= filedata_new();
1011                 fd->memfile= memfile;
1012
1013                 fd->read= fd_read_from_memfile;
1014                 fd->flags|= FD_FLAGS_NOT_MY_BUFFER;
1015
1016                 return blo_decode_and_check(fd, reports);
1017         }
1018 }
1019
1020
1021 void blo_freefiledata(FileData *fd)
1022 {
1023         if (fd) {
1024                 
1025                 if (fd->filedes != -1) {
1026                         close(fd->filedes);
1027                 }
1028
1029                 if (fd->gzfiledes != NULL)
1030                 {
1031                         gzclose(fd->gzfiledes);
1032                 }
1033
1034                 if (fd->buffer && !(fd->flags & FD_FLAGS_NOT_MY_BUFFER)) {
1035                         MEM_freeN(fd->buffer);
1036                         fd->buffer = 0;
1037                 }
1038
1039                 // Free all BHeadN data blocks
1040                 BLI_freelistN(&fd->listbase);
1041
1042                 if (fd->memsdna)
1043                         DNA_sdna_free(fd->memsdna);
1044                 if (fd->filesdna)
1045                         DNA_sdna_free(fd->filesdna);
1046                 if (fd->compflags)
1047                         MEM_freeN(fd->compflags);
1048
1049                 if (fd->datamap)
1050                         oldnewmap_free(fd->datamap);
1051                 if (fd->globmap)
1052                         oldnewmap_free(fd->globmap);
1053                 if (fd->imamap)
1054                         oldnewmap_free(fd->imamap);
1055                 if (fd->libmap && !(fd->flags & FD_FLAGS_NOT_MY_LIBMAP))
1056                         oldnewmap_free(fd->libmap);
1057                 if (fd->bheadmap)
1058                         MEM_freeN(fd->bheadmap);
1059                 
1060                 MEM_freeN(fd);
1061         }
1062 }
1063
1064 /* ************ DIV ****************** */
1065
1066 int BLO_has_bfile_extension(char *str)
1067 {
1068         return (BLI_testextensie(str, ".ble") || BLI_testextensie(str, ".blend")||BLI_testextensie(str, ".blend.gz"));
1069 }
1070
1071 int BLO_is_a_library(char *path, char *dir, char *group)
1072 {
1073         /* return ok when a blenderfile, in dir is the filename,
1074          * in group the type of libdata
1075          */
1076         int len;
1077         char *fd;
1078         
1079         strcpy(dir, path);
1080         len= strlen(dir);
1081         if(len<7) return 0;
1082         if( dir[len-1] != '/' && dir[len-1] != '\\') return 0;
1083         
1084         group[0]= 0;
1085         dir[len-1]= 0;
1086
1087         /* Find the last slash */
1088         fd= (strrchr(dir, '/')>strrchr(dir, '\\'))?strrchr(dir, '/'):strrchr(dir, '\\');
1089
1090         if(fd==0) return 0;
1091         *fd= 0;
1092         if(BLO_has_bfile_extension(fd+1)) {
1093                 /* the last part of the dir is a .blend file, no group follows */
1094                 *fd= '/'; /* put back the removed slash separating the dir and the .blend file name */
1095         }
1096         else {          
1097                 char *gp = fd+1; // in case we have a .blend file, gp points to the group
1098
1099                 /* Find the last slash */
1100                 fd= (strrchr(dir, '/')>strrchr(dir, '\\'))?strrchr(dir, '/'):strrchr(dir, '\\');
1101                 if (!fd || !BLO_has_bfile_extension(fd+1)) return 0;
1102
1103                 /* now we know that we are in a blend file and it is safe to 
1104                    assume that gp actually points to a group */
1105                 if (BLI_streq("Screen", gp)==0)
1106                         BLI_strncpy(group, gp, GROUP_MAX);
1107         }
1108         return 1;
1109 }
1110
1111 /* ************** OLD POINTERS ******************* */
1112
1113 static void *newdataadr(FileData *fd, void *adr)                /* only direct databocks */
1114 {
1115         return oldnewmap_lookup_and_inc(fd->datamap, adr);
1116 }
1117
1118 static void *newglobadr(FileData *fd, void *adr)                /* direct datablocks with global linking */
1119 {
1120         return oldnewmap_lookup_and_inc(fd->globmap, adr);
1121 }
1122
1123 static void *newimaadr(FileData *fd, void *adr)         /* used to restore image data after undo */
1124 {
1125         if(fd->imamap && adr)
1126                 return oldnewmap_lookup_and_inc(fd->imamap, adr);
1127         return NULL;
1128 }
1129
1130
1131 static void *newlibadr(FileData *fd, void *lib, void *adr)              /* only lib data */
1132 {
1133         return oldnewmap_liblookup(fd->libmap, adr, lib);
1134 }
1135
1136 static void *newlibadr_us(FileData *fd, void *lib, void *adr)   /* increases user number */
1137 {
1138         ID *id= newlibadr(fd, lib, adr);
1139
1140         if(id)
1141                 id->us++;
1142
1143         return id;
1144 }
1145
1146 static void change_idid_adr_fd(FileData *fd, void *old, void *new)
1147 {
1148         int i;
1149         
1150         for (i=0; i<fd->libmap->nentries; i++) {
1151                 OldNew *entry= &fd->libmap->entries[i];
1152                 
1153                 if (old==entry->newp && entry->nr==ID_ID) {
1154                         entry->newp= new;
1155                         if(new) entry->nr= GS( ((ID *)new)->name );
1156                         break;
1157                 }
1158         }
1159 }
1160
1161 static void change_idid_adr(ListBase *mainlist, FileData *basefd, void *old, void *new)
1162 {
1163         Main *mainptr;
1164         
1165         for(mainptr= mainlist->first; mainptr; mainptr= mainptr->next) {
1166                 FileData *fd;
1167                 
1168                 if(mainptr->curlib) fd= mainptr->curlib->filedata;
1169                 else fd= basefd;
1170                 
1171                 if(fd) {
1172                         change_idid_adr_fd(fd, old, new);
1173                 }
1174         }
1175 }
1176
1177 /* lib linked proxy objects point to our local data, we need
1178  * to clear that pointer before reading the undo memfile since
1179  * the object might be removed, it is set again in reading
1180  * if the local object still exists */
1181 void blo_clear_proxy_pointers_from_lib(FileData *fd, Main *oldmain)
1182 {
1183         Object *ob= oldmain->object.first;
1184         
1185         for(;ob; ob= ob->id.next)
1186                 if(ob->id.lib)
1187                         ob->proxy_from= NULL;
1188 }
1189
1190 void blo_make_image_pointer_map(FileData *fd, Main *oldmain)
1191 {
1192         Image *ima= oldmain->image.first;
1193         Scene *sce= oldmain->scene.first;
1194         
1195         fd->imamap= oldnewmap_new();
1196         
1197         for(;ima; ima= ima->id.next) {
1198                 Link *ibuf= ima->ibufs.first;
1199                 for(; ibuf; ibuf= ibuf->next) 
1200                         oldnewmap_insert(fd->imamap, ibuf, ibuf, 0);
1201                 if(ima->gputexture)
1202                         oldnewmap_insert(fd->imamap, ima->gputexture, ima->gputexture, 0);
1203         }
1204         for(; sce; sce= sce->id.next) {
1205                 if(sce->nodetree) {
1206                         bNode *node;
1207                         for(node= sce->nodetree->nodes.first; node; node= node->next)
1208                                 oldnewmap_insert(fd->imamap, node->preview, node->preview, 0);
1209                 }
1210         }
1211 }
1212
1213 /* set old main image ibufs to zero if it has been restored */
1214 /* this works because freeing old main only happens after this call */
1215 void blo_end_image_pointer_map(FileData *fd, Main *oldmain)
1216 {
1217         OldNew *entry= fd->imamap->entries;
1218         Image *ima= oldmain->image.first;
1219         Scene *sce= oldmain->scene.first;
1220         int i;
1221         
1222         /* used entries were restored, so we put them to zero */
1223         for (i=0; i<fd->imamap->nentries; i++, entry++) {
1224                 if (entry->nr>0)
1225                         entry->newp= NULL;
1226         }
1227         
1228         for(;ima; ima= ima->id.next) {
1229                 Link *ibuf, *next;
1230                 
1231                 /* this mirrors direct_link_image */
1232                 for(ibuf= ima->ibufs.first; ibuf; ibuf= next) {
1233                         next= ibuf->next;
1234                         if(NULL==newimaadr(fd, ibuf)) { /* so was restored */
1235                                 BLI_remlink(&ima->ibufs, ibuf);
1236                                 ima->bindcode= 0;
1237                                 ima->gputexture= NULL;
1238                         }
1239                 }
1240
1241                 ima->gputexture= newimaadr(fd, ima->gputexture);
1242         }
1243         for(; sce; sce= sce->id.next) {
1244                 if(sce->nodetree) {
1245                         bNode *node;
1246                         for(node= sce->nodetree->nodes.first; node; node= node->next)
1247                                 node->preview= newimaadr(fd, node->preview);
1248                 }
1249         }
1250 }
1251
1252 /* undo file support: add all library pointers in lookup */
1253 void blo_add_library_pointer_map(ListBase *mainlist, FileData *fd)
1254 {
1255         Main *ptr= mainlist->first;
1256         ListBase *lbarray[MAX_LIBARRAY];
1257         
1258         for(ptr= ptr->next; ptr; ptr= ptr->next) {
1259                 int i= set_listbasepointers(ptr, lbarray);
1260                 while(i--) {
1261                         ID *id;
1262                         for(id= lbarray[i]->first; id; id= id->next)
1263                                 oldnewmap_insert(fd->libmap, id, id, GS(id->name));
1264                 }
1265         }
1266 }
1267                 
1268
1269 /* ********** END OLD POINTERS ****************** */
1270 /* ********** READ FILE ****************** */
1271
1272 static void switch_endian_structs(struct SDNA *filesdna, BHead *bhead)
1273 {
1274         int blocksize, nblocks;
1275         char *data;
1276
1277         data= (char *)(bhead+1);
1278         blocksize= filesdna->typelens[ filesdna->structs[bhead->SDNAnr][0] ];
1279
1280         nblocks= bhead->nr;
1281         while(nblocks--) {
1282                 DNA_struct_switch_endian(filesdna, bhead->SDNAnr, data);
1283
1284                 data+= blocksize;
1285         }
1286 }
1287
1288 static void *read_struct(FileData *fd, BHead *bh, char *blockname)
1289 {
1290         void *temp= NULL;
1291
1292         if (bh->len) {
1293                 /* switch is based on file dna */
1294                 if (bh->SDNAnr && (fd->flags & FD_FLAGS_SWITCH_ENDIAN))
1295                         switch_endian_structs(fd->filesdna, bh);
1296
1297                 if (fd->compflags[bh->SDNAnr]) {        /* flag==0: doesn't exist anymore */
1298                         if(fd->compflags[bh->SDNAnr]==2) {
1299                                 temp= DNA_struct_reconstruct(fd->memsdna, fd->filesdna, fd->compflags, bh->SDNAnr, bh->nr, (bh+1));
1300                         } else {
1301                                 temp= MEM_mallocN(bh->len, blockname);
1302                                 memcpy(temp, (bh+1), bh->len);
1303                         }
1304                 }
1305         }
1306
1307         return temp;
1308 }
1309
1310 static void link_list(FileData *fd, ListBase *lb)               /* only direct data */
1311 {
1312         Link *ln, *prev;
1313
1314         if(lb->first==NULL) return;
1315
1316         lb->first= newdataadr(fd, lb->first);
1317         ln= lb->first;
1318         prev= NULL;
1319         while(ln) {
1320                 ln->next= newdataadr(fd, ln->next);
1321                 ln->prev= prev;
1322                 prev= ln;
1323                 ln= ln->next;
1324         }
1325         lb->last= prev;
1326 }
1327
1328 static void link_glob_list(FileData *fd, ListBase *lb)          /* for glob data */
1329 {
1330         Link *ln, *prev;
1331         void *poin;
1332
1333         if(lb->first==0) return;
1334         poin= newdataadr(fd, lb->first);
1335         if(lb->first) {
1336                 oldnewmap_insert(fd->globmap, lb->first, poin, 0);
1337         }
1338         lb->first= poin;
1339
1340         ln= lb->first;
1341         prev= 0;
1342         while(ln) {
1343                 poin= newdataadr(fd, ln->next);
1344                 if(ln->next) {
1345                         oldnewmap_insert(fd->globmap, ln->next, poin, 0);
1346                 }
1347                 ln->next= poin;
1348                 ln->prev= prev;
1349                 prev= ln;
1350                 ln= ln->next;
1351         }
1352         lb->last= prev;
1353 }
1354
1355 static void test_pointer_array(FileData *fd, void **mat)
1356 {
1357 #if defined(WIN32) && !defined(FREE_WINDOWS)
1358         __int64 *lpoin, *lmat;
1359 #else
1360         long long *lpoin, *lmat;
1361 #endif
1362         int len, *ipoin, *imat;
1363
1364                 /* manually convert the pointer array in
1365                  * the old dna format to a pointer array in
1366                  * the new dna format.
1367                  */
1368         if(*mat) {
1369                 len= MEM_allocN_len(*mat)/fd->filesdna->pointerlen;
1370
1371                 if(fd->filesdna->pointerlen==8 && fd->memsdna->pointerlen==4) {
1372                         ipoin=imat= MEM_mallocN( len*4, "newmatar");
1373                         lpoin= *mat;
1374
1375                         while(len-- > 0) {
1376                                 if((fd->flags & FD_FLAGS_SWITCH_ENDIAN))
1377                                         SWITCH_LONGINT(*lpoin);
1378                                 *ipoin= (int) ((*lpoin) >> 3);
1379                                 ipoin++;
1380                                 lpoin++;
1381                         }
1382                         MEM_freeN(*mat);
1383                         *mat= imat;
1384                 }
1385
1386                 if(fd->filesdna->pointerlen==4 && fd->memsdna->pointerlen==8) {
1387                         lpoin=lmat= MEM_mallocN( len*8, "newmatar");
1388                         ipoin= *mat;
1389
1390                         while(len-- > 0) {
1391                                 *lpoin= *ipoin;
1392                                 ipoin++;
1393                                 lpoin++;
1394                         }
1395                         MEM_freeN(*mat);
1396                         *mat= lmat;
1397                 }
1398         }
1399 }
1400
1401 /* ************ READ ID Properties *************** */
1402
1403 void IDP_DirectLinkProperty(IDProperty *prop, int switch_endian, FileData *fd);
1404 void IDP_LibLinkProperty(IDProperty *prop, int switch_endian, FileData *fd);
1405
1406 static void IDP_DirectLinkIDPArray(IDProperty *prop, int switch_endian, FileData *fd)
1407 {
1408         IDProperty *array;
1409         int i;
1410
1411         /*since we didn't save the extra buffer, set totallen to len.*/
1412         prop->totallen = prop->len;
1413         prop->data.pointer = newdataadr(fd, prop->data.pointer);
1414
1415         array= (IDProperty*) prop->data.pointer;
1416
1417         for(i=0; i<prop->len; i++)
1418                 IDP_DirectLinkProperty(&array[i], switch_endian, fd);
1419 }
1420
1421 static void IDP_DirectLinkArray(IDProperty *prop, int switch_endian, FileData *fd)
1422 {
1423         IDProperty **array;
1424         int i;
1425
1426         /*since we didn't save the extra buffer, set totallen to len.*/
1427         prop->totallen = prop->len;
1428         prop->data.pointer = newdataadr(fd, prop->data.pointer);
1429
1430         if(prop->subtype == IDP_GROUP) {
1431                 test_pointer_array(fd, prop->data.pointer);
1432                 array= prop->data.pointer;
1433
1434                 for(i=0; i<prop->len; i++)
1435                         IDP_DirectLinkProperty(array[i], switch_endian, fd);
1436         }
1437         else if(prop->subtype == IDP_DOUBLE) {
1438                 if (switch_endian) {
1439                         for (i=0; i<prop->len; i++) {
1440                                 SWITCH_LONGINT(((double*)prop->data.pointer)[i]);
1441                         }
1442                 }
1443         }
1444         else {
1445                 if (switch_endian) {
1446                         for (i=0; i<prop->len; i++) {
1447                                 SWITCH_INT(((int*)prop->data.pointer)[i]);
1448                         }
1449                 }
1450         }
1451 }
1452
1453 static void IDP_DirectLinkString(IDProperty *prop, int switch_endian, FileData *fd)
1454 {
1455         /*since we didn't save the extra string buffer, set totallen to len.*/
1456         prop->totallen = prop->len;
1457         prop->data.pointer = newdataadr(fd, prop->data.pointer);
1458 }
1459
1460 static void IDP_DirectLinkGroup(IDProperty *prop, int switch_endian, FileData *fd)
1461 {
1462         ListBase *lb = &prop->data.group;
1463         IDProperty *loop;
1464
1465         link_list(fd, lb);
1466
1467         /*Link child id properties now*/
1468         for (loop=prop->data.group.first; loop; loop=loop->next) {
1469                 IDP_DirectLinkProperty(loop, switch_endian, fd);
1470         }
1471 }
1472
1473 void IDP_DirectLinkProperty(IDProperty *prop, int switch_endian, FileData *fd)
1474 {
1475         switch (prop->type) {
1476                 case IDP_GROUP:
1477                         IDP_DirectLinkGroup(prop, switch_endian, fd);
1478                         break;
1479                 case IDP_STRING:
1480                         IDP_DirectLinkString(prop, switch_endian, fd);
1481                         break;
1482                 case IDP_ARRAY:
1483                         IDP_DirectLinkArray(prop, switch_endian, fd);
1484                         break;
1485                 case IDP_IDPARRAY:
1486                         IDP_DirectLinkIDPArray(prop, switch_endian, fd);
1487                         break;
1488                 case IDP_DOUBLE:
1489                         /*erg, stupid doubles.  since I'm storing them
1490                          in the same field as int val; val2 in the
1491                          IDPropertyData struct, they have to deal with
1492                          endianness specifically
1493                          
1494                          in theory, val and val2 would've already been swapped
1495                          if switch_endian is true, so we have to first unswap
1496                          them then reswap them as a single 64-bit entity.
1497                          */
1498                         
1499                         if (switch_endian) {
1500                                 SWITCH_INT(prop->data.val);
1501                                 SWITCH_INT(prop->data.val2);
1502                                 SWITCH_LONGINT(prop->data.val);
1503                         }
1504                         
1505                         break;
1506         }
1507 }
1508
1509 /*stub function*/
1510 void IDP_LibLinkProperty(IDProperty *prop, int switch_endian, FileData *fd)
1511 {
1512 }
1513
1514 /* ************ READ CurveMapping *************** */
1515
1516 /* cuma itself has been read! */
1517 static void direct_link_curvemapping(FileData *fd, CurveMapping *cumap)
1518 {
1519         int a;
1520         
1521         /* flag seems to be able to hang? Maybe old files... not bad to clear anyway */
1522         cumap->flag &= ~CUMA_PREMULLED;
1523         
1524         for(a=0; a<CM_TOT; a++) {
1525                 cumap->cm[a].curve= newdataadr(fd, cumap->cm[a].curve);
1526                 cumap->cm[a].table= NULL;
1527         }
1528 }
1529
1530 /* ************ READ Brush *************** */
1531 /* library brush linking after fileread */
1532 static void lib_link_brush(FileData *fd, Main *main)
1533 {
1534         Brush *brush;
1535         
1536         /* only link ID pointers */
1537         for(brush= main->brush.first; brush; brush= brush->id.next) {
1538                 if(brush->id.flag & LIB_NEEDLINK) {
1539                         brush->id.flag -= LIB_NEEDLINK;
1540
1541                         brush->mtex.tex= newlibadr_us(fd, brush->id.lib, brush->mtex.tex);
1542                         brush->clone.image= newlibadr_us(fd, brush->id.lib, brush->clone.image);
1543                 }
1544         }
1545 }
1546
1547 static void direct_link_brush(FileData *fd, Brush *brush)
1548 {
1549         /* brush itself has been read */
1550
1551         /* fallof curve */
1552         brush->curve= newdataadr(fd, brush->curve);
1553         if(brush->curve)
1554                 direct_link_curvemapping(fd, brush->curve);
1555         else
1556                 brush_curve_preset(brush, CURVE_PRESET_SHARP);
1557 }
1558
1559 static void direct_link_script(FileData *fd, Script *script)
1560 {
1561         script->id.us = 1;
1562         SCRIPT_SET_NULL(script)
1563 }
1564
1565
1566 /* ************ READ PACKEDFILE *************** */
1567
1568 static PackedFile *direct_link_packedfile(FileData *fd, PackedFile *oldpf)
1569 {
1570         PackedFile *pf= newdataadr(fd, oldpf);
1571
1572         if (pf) {
1573                 pf->data= newdataadr(fd, pf->data);
1574         }
1575
1576         return pf;
1577 }
1578
1579 /* ************ READ IMAGE PREVIEW *************** */
1580
1581 static PreviewImage *direct_link_preview_image(FileData *fd, PreviewImage *old_prv)
1582 {
1583         PreviewImage *prv= newdataadr(fd, old_prv);
1584
1585         if (prv) {
1586                 int i;
1587                 for (i=0; i < PREVIEW_MIPMAPS; ++i) {
1588                         if (prv->rect[i]) {
1589                                 prv->rect[i] = newdataadr(fd, prv->rect[i]);
1590                         }
1591                 }
1592         }
1593
1594         return prv;
1595 }
1596
1597 /* ************ READ ANIMATION STUFF ***************** */
1598
1599 /* Legacy Data Support (for Version Patching) ----------------------------- */
1600
1601 // XXX depreceated - old animation system
1602 static void lib_link_ipo(FileData *fd, Main *main)
1603 {
1604         Ipo *ipo;
1605
1606         ipo= main->ipo.first;
1607         while(ipo) {
1608                 if(ipo->id.flag & LIB_NEEDLINK) {
1609                         IpoCurve *icu;
1610                         for(icu= ipo->curve.first; icu; icu= icu->next) {
1611                                 if(icu->driver)
1612                                         icu->driver->ob= newlibadr(fd, ipo->id.lib, icu->driver->ob);
1613                         }
1614                         ipo->id.flag -= LIB_NEEDLINK;
1615                 }
1616                 ipo= ipo->id.next;
1617         }
1618 }
1619
1620 // XXX depreceated - old animation system
1621 static void direct_link_ipo(FileData *fd, Ipo *ipo)
1622 {
1623         IpoCurve *icu;
1624
1625         link_list(fd, &(ipo->curve));
1626         icu= ipo->curve.first;
1627         while(icu) {
1628                 icu->bezt= newdataadr(fd, icu->bezt);
1629                 icu->bp= newdataadr(fd, icu->bp);
1630                 icu->driver= newdataadr(fd, icu->driver);
1631                 icu= icu->next;
1632         }
1633 }
1634
1635 // XXX depreceated - old animation system
1636 static void lib_link_nlastrips(FileData *fd, ID *id, ListBase *striplist)
1637 {
1638         bActionStrip *strip;
1639         bActionModifier *amod;
1640         
1641         for (strip=striplist->first; strip; strip=strip->next){
1642                 strip->object = newlibadr(fd, id->lib, strip->object);
1643                 strip->act = newlibadr_us(fd, id->lib, strip->act);
1644                 strip->ipo = newlibadr(fd, id->lib, strip->ipo);
1645                 for(amod= strip->modifiers.first; amod; amod= amod->next)
1646                         amod->ob= newlibadr(fd, id->lib, amod->ob);
1647         }
1648 }
1649
1650 // XXX depreceated - old animation system
1651 static void direct_link_nlastrips(FileData *fd, ListBase *strips)
1652 {
1653         bActionStrip *strip;
1654         
1655         link_list(fd, strips);
1656         
1657         for(strip= strips->first; strip; strip= strip->next)
1658                 link_list(fd, &strip->modifiers);
1659 }
1660
1661 // XXX depreceated - old animation system
1662 static void lib_link_constraint_channels(FileData *fd, ID *id, ListBase *chanbase)
1663 {
1664         bConstraintChannel *chan;
1665
1666         for (chan=chanbase->first; chan; chan=chan->next){
1667                 chan->ipo = newlibadr_us(fd, id->lib, chan->ipo);
1668         }
1669 }
1670
1671 /* Data Linking ----------------------------- */
1672
1673 static void lib_link_fmodifiers(FileData *fd, ID *id, ListBase *list)
1674 {
1675         FModifier *fcm;
1676         
1677         for (fcm= list->first; fcm; fcm= fcm->next) {
1678                 /* data for specific modifiers */
1679                 switch (fcm->type) {
1680                         case FMODIFIER_TYPE_PYTHON:
1681                         {
1682                                 FMod_Python *data= (FMod_Python *)fcm->data;
1683                                 data->script = newlibadr(fd, id->lib, data->script);
1684                         }
1685                                 break;
1686                 }
1687         }
1688 }
1689
1690 static void lib_link_fcurves(FileData *fd, ID *id, ListBase *list) 
1691 {
1692         FCurve *fcu;
1693         
1694         if (list == NULL)
1695                 return;
1696         
1697         /* relink ID-block references... */
1698         for (fcu= list->first; fcu; fcu= fcu->next) {
1699                 /* driver data */
1700                 if (fcu->driver) {
1701                         ChannelDriver *driver= fcu->driver;
1702                         DriverVar *dvar;
1703                         
1704                         for (dvar= driver->variables.first; dvar; dvar= dvar->next) {
1705                                 DRIVER_TARGETS_LOOPER(dvar)
1706                                 {       
1707                                         /* only relink if still used */
1708                                         if (tarIndex < dvar->num_targets)
1709                                                 dtar->id= newlibadr(fd, id->lib, dtar->id); 
1710                                         else
1711                                                 dtar->id= NULL;
1712                                 }
1713                                 DRIVER_TARGETS_LOOPER_END
1714                         }
1715                 }
1716                 
1717                 /* modifiers */
1718                 lib_link_fmodifiers(fd, id, &fcu->modifiers);
1719         }
1720 }
1721
1722
1723 /* NOTE: this assumes that link_list has already been called on the list */
1724 static void direct_link_fmodifiers(FileData *fd, ListBase *list)
1725 {
1726         FModifier *fcm;
1727         
1728         for (fcm= list->first; fcm; fcm= fcm->next) {
1729                 /* relink general data */
1730                 fcm->data = newdataadr(fd, fcm->data);
1731                 fcm->edata= NULL;
1732                 
1733                 /* do relinking of data for specific types */
1734                 switch (fcm->type) {
1735                         case FMODIFIER_TYPE_GENERATOR:
1736                         {
1737                                 FMod_Generator *data= (FMod_Generator *)fcm->data;
1738                                 
1739                                 data->coefficients= newdataadr(fd, data->coefficients);
1740                         }
1741                                 break;
1742                         case FMODIFIER_TYPE_ENVELOPE:
1743                         {
1744                                 FMod_Envelope *data= (FMod_Envelope *)fcm->data;
1745                                 
1746                                 data->data= newdataadr(fd, data->data);
1747                         }
1748                                 break;
1749                         case FMODIFIER_TYPE_PYTHON:
1750                         {
1751                                 FMod_Python *data= (FMod_Python *)fcm->data;
1752                                 
1753                                 data->prop = newdataadr(fd, data->prop);
1754                                 IDP_DirectLinkProperty(data->prop, (fd->flags & FD_FLAGS_SWITCH_ENDIAN), fd);
1755                         }
1756                                 break;
1757                 }
1758         }
1759 }
1760
1761 /* NOTE: this assumes that link_list has already been called on the list */
1762 static void direct_link_fcurves(FileData *fd, ListBase *list)
1763 {
1764         FCurve *fcu;
1765         
1766         /* link F-Curve data to F-Curve again (non ID-libs) */
1767         for (fcu= list->first; fcu; fcu= fcu->next) {
1768                 /* curve data */
1769                 fcu->bezt= newdataadr(fd, fcu->bezt);
1770                 fcu->fpt= newdataadr(fd, fcu->fpt);
1771                 
1772                 /* rna path */
1773                 fcu->rna_path= newdataadr(fd, fcu->rna_path);
1774                 
1775                 /* group */
1776                 fcu->grp= newdataadr(fd, fcu->grp);
1777                 
1778                 /* driver */
1779                 fcu->driver= newdataadr(fd, fcu->driver);
1780                 if (fcu->driver) {
1781                         ChannelDriver *driver= fcu->driver;
1782                         DriverVar *dvar;
1783
1784                         driver->expr_comp= NULL;
1785                         
1786                         /* relink variables, targets and their paths */
1787                         link_list(fd, &driver->variables);
1788                         for (dvar= driver->variables.first; dvar; dvar= dvar->next) {
1789                                 DRIVER_TARGETS_LOOPER(dvar)
1790                                 {
1791                                         /* only relink the targets being used */
1792                                         if (tarIndex < dvar->num_targets)
1793                                                 dtar->rna_path= newdataadr(fd, dtar->rna_path);
1794                                         else
1795                                                 dtar->rna_path= NULL;
1796                                 }
1797                                 DRIVER_TARGETS_LOOPER_END
1798                         }
1799                 }
1800                 
1801                 /* modifiers */
1802                 link_list(fd, &fcu->modifiers);
1803                 direct_link_fmodifiers(fd, &fcu->modifiers);
1804         }
1805 }
1806
1807
1808 static void lib_link_action(FileData *fd, Main *main)
1809 {
1810         bAction *act;
1811         bActionChannel *chan;
1812
1813         for (act= main->action.first; act; act= act->id.next) {
1814                 if (act->id.flag & LIB_NEEDLINK) {
1815                         act->id.flag -= LIB_NEEDLINK;
1816                         
1817 // XXX depreceated - old animation system <<<
1818                         for (chan=act->chanbase.first; chan; chan=chan->next) {
1819                                 chan->ipo= newlibadr_us(fd, act->id.lib, chan->ipo);
1820                                 lib_link_constraint_channels(fd, &act->id, &chan->constraintChannels);
1821                         }
1822 // >>> XXX depreceated - old animation system
1823                         
1824                         lib_link_fcurves(fd, &act->id, &act->curves);
1825                 }
1826         }
1827 }
1828
1829 static void direct_link_action(FileData *fd, bAction *act)
1830 {
1831         bActionChannel *achan; // XXX depreceated - old animation system
1832         bActionGroup *agrp;
1833
1834         link_list(fd, &act->curves);
1835         link_list(fd, &act->chanbase); // XXX depreceated - old animation system
1836         link_list(fd, &act->groups);
1837         link_list(fd, &act->markers);
1838
1839 // XXX depreceated - old animation system <<<
1840         for (achan = act->chanbase.first; achan; achan=achan->next) {
1841                 achan->grp= newdataadr(fd, achan->grp);
1842                 
1843                 link_list(fd, &achan->constraintChannels);
1844         }
1845 // >>> XXX depreceated - old animation system
1846
1847         direct_link_fcurves(fd, &act->curves);
1848         
1849         for (agrp = act->groups.first; agrp; agrp= agrp->next) {
1850                 agrp->channels.first= newdataadr(fd, agrp->channels.first);
1851                 agrp->channels.last= newdataadr(fd, agrp->channels.last);
1852         }
1853 }
1854
1855 static void lib_link_nladata_strips(FileData *fd, ID *id, ListBase *list)
1856 {
1857         NlaStrip *strip;
1858         
1859         for (strip= list->first; strip; strip= strip->next) {
1860                 /* check strip's children */
1861                 lib_link_nladata_strips(fd, id, &strip->strips);
1862                 
1863                 /* check strip's F-Curves */
1864                 lib_link_fcurves(fd, id, &strip->fcurves);
1865                 
1866                 /* reassign the counted-reference to action */
1867                 strip->act = newlibadr_us(fd, id->lib, strip->act);
1868         }
1869 }
1870
1871 static void lib_link_nladata(FileData *fd, ID *id, ListBase *list)
1872 {
1873         NlaTrack *nlt;
1874         
1875         /* we only care about the NLA strips inside the tracks */
1876         for (nlt= list->first; nlt; nlt= nlt->next) {
1877                 lib_link_nladata_strips(fd, id, &nlt->strips);
1878         }
1879 }
1880
1881 /* This handles Animato NLA-Strips linking 
1882  * NOTE: this assumes that link_list has already been called on the list 
1883  */
1884 static void direct_link_nladata_strips(FileData *fd, ListBase *list)
1885 {
1886         NlaStrip *strip;
1887         
1888         for (strip= list->first; strip; strip= strip->next) {
1889                 /* strip's child strips */
1890                 link_list(fd, &strip->strips);
1891                 direct_link_nladata_strips(fd, &strip->strips);
1892                 
1893                 /* strip's F-Curves */
1894                 link_list(fd, &strip->fcurves);
1895                 direct_link_fcurves(fd, &strip->fcurves);
1896                 
1897                 /* strip's F-Modifiers */
1898                 link_list(fd, &strip->modifiers);
1899                 direct_link_fcurves(fd, &strip->modifiers);
1900         }
1901 }
1902
1903 /* NOTE: this assumes that link_list has already been called on the list */
1904 static void direct_link_nladata(FileData *fd, ListBase *list)
1905 {
1906         NlaTrack *nlt;
1907         
1908         for (nlt= list->first; nlt; nlt= nlt->next) {
1909                 /* relink list of strips */
1910                 link_list(fd, &nlt->strips);
1911                 
1912                 /* relink strip data */
1913                 direct_link_nladata_strips(fd, &nlt->strips);
1914         }
1915 }
1916
1917 /* ------- */
1918
1919 static void lib_link_keyingsets(FileData *fd, ID *id, ListBase *list)
1920 {
1921         KeyingSet *ks;
1922         KS_Path *ksp;
1923         
1924         /* here, we're only interested in the ID pointer stored in some of the paths */
1925         for (ks= list->first; ks; ks= ks->next) {
1926                 for (ksp= ks->paths.first; ksp; ksp= ksp->next) {
1927                         ksp->id= newlibadr(fd, id->lib, ksp->id); 
1928                 }
1929         }
1930 }
1931
1932 /* NOTE: this assumes that link_list has already been called on the list */
1933 static void direct_link_keyingsets(FileData *fd, ListBase *list)
1934 {
1935         KeyingSet *ks;
1936         KS_Path *ksp;
1937         
1938         /* link KeyingSet data to KeyingSet again (non ID-libs) */
1939         for (ks= list->first; ks; ks= ks->next) {
1940                 /* paths */
1941                 link_list(fd, &ks->paths);
1942                 
1943                 for (ksp= ks->paths.first; ksp; ksp= ksp->next) {
1944                         /* rna path */
1945                         ksp->rna_path= newdataadr(fd, ksp->rna_path);
1946                 }
1947         }
1948 }
1949
1950 /* ------- */
1951
1952 static void lib_link_animdata(FileData *fd, ID *id, AnimData *adt)
1953 {
1954         if (adt == NULL)
1955                 return;
1956         
1957         /* link action data */
1958         adt->action= newlibadr_us(fd, id->lib, adt->action);
1959         adt->tmpact= newlibadr_us(fd, id->lib, adt->tmpact);
1960         
1961         /* link drivers */
1962         lib_link_fcurves(fd, id, &adt->drivers);
1963         
1964         /* overrides don't have lib-link for now, so no need to do anything */
1965         
1966         /* link NLA-data */
1967         lib_link_nladata(fd, id, &adt->nla_tracks);
1968 }
1969
1970 static void direct_link_animdata(FileData *fd, AnimData *adt)
1971 {
1972         /* NOTE: must have called newdataadr already before doing this... */
1973         if (adt == NULL)
1974                 return;
1975         
1976         /* link drivers */
1977         link_list(fd, &adt->drivers);
1978         direct_link_fcurves(fd, &adt->drivers);
1979         
1980         /* link overrides */
1981         // TODO...
1982         
1983         /* link NLA-data */
1984         link_list(fd, &adt->nla_tracks);
1985         direct_link_nladata(fd, &adt->nla_tracks);
1986         
1987         /* clear temp pointers that may have been set... */
1988         // TODO: it's probably only a small cost to reload this anyway...
1989         adt->actstrip= NULL;
1990 }       
1991
1992 /* ************ READ MOTION PATHS *************** */
1993
1994 /* direct data for cache */
1995 static void direct_link_motionpath(FileData *fd, bMotionPath *mpath)
1996 {
1997         /* sanity check */
1998         if (mpath == NULL)
1999                 return;
2000         
2001         /* relink points cache */
2002         mpath->points= newdataadr(fd, mpath->points);
2003 }
2004
2005 /* ************ READ NODE TREE *************** */
2006
2007 /* singe node tree (also used for material/scene trees), ntree is not NULL */
2008 static void lib_link_ntree(FileData *fd, ID *id, bNodeTree *ntree)
2009 {
2010         bNode *node;
2011         
2012         if(ntree->adt) lib_link_animdata(fd, &ntree->id, ntree->adt);
2013         
2014         ntree->gpd= newlibadr_us(fd, id->lib, ntree->gpd);
2015         
2016         for(node= ntree->nodes.first; node; node= node->next)
2017                 node->id= newlibadr_us(fd, id->lib, node->id);
2018 }
2019
2020 /* library ntree linking after fileread */
2021 static void lib_link_nodetree(FileData *fd, Main *main)
2022 {
2023         bNodeTree *ntree;
2024         
2025         /* only link ID pointers */
2026         for(ntree= main->nodetree.first; ntree; ntree= ntree->id.next) {
2027                 if(ntree->id.flag & LIB_NEEDLINK) {
2028                         ntree->id.flag -= LIB_NEEDLINK;
2029                         lib_link_ntree(fd, &ntree->id, ntree);
2030                 }
2031         }
2032 }
2033
2034 /* verify types for nodes and groups, all data has to be read */
2035 /* open = 0: appending/linking, open = 1: open new file (need to clean out dynamic
2036 * typedefs*/
2037 static void lib_verify_nodetree(Main *main, int open)
2038 {
2039         Scene *sce;
2040         Material *ma;
2041         Tex *tx;
2042         bNodeTree *ntree;
2043         
2044         /* this crashes blender on undo/redo
2045                 if(open==1) {
2046                         reinit_nodesystem();
2047                 }*/
2048         
2049         /* now create the own typeinfo structs an verify nodes */
2050         /* here we still assume no groups in groups */
2051         for(ntree= main->nodetree.first; ntree; ntree= ntree->id.next) {
2052                 ntreeVerifyTypes(ntree);        /* internal nodes, no groups! */
2053                 ntreeMakeOwnType(ntree);        /* for group usage */
2054         }
2055         
2056         /* now verify all types in material trees, groups are set OK now */
2057         for(ma= main->mat.first; ma; ma= ma->id.next) {
2058                 if(ma->nodetree)
2059                         ntreeVerifyTypes(ma->nodetree);
2060         }
2061         /* and scene trees */
2062         for(sce= main->scene.first; sce; sce= sce->id.next) {
2063                 if(sce->nodetree)
2064                         ntreeVerifyTypes(sce->nodetree);
2065         }
2066         /* and texture trees */
2067         for(tx= main->tex.first; tx; tx= tx->id.next) {
2068                 if(tx->nodetree)
2069                         ntreeVerifyTypes(tx->nodetree);
2070         }
2071 }
2072
2073
2074
2075 /* ntree itself has been read! */
2076 static void direct_link_nodetree(FileData *fd, bNodeTree *ntree)
2077 {
2078         /* note: writing and reading goes in sync, for speed */
2079         bNode *node;
2080         bNodeSocket *sock;
2081         bNodeLink *link;
2082         
2083         ntree->init= 0;         /* to set callbacks and force setting types */
2084         ntree->owntype= NULL;
2085         ntree->timecursor= NULL;
2086         
2087         ntree->adt= newdataadr(fd, ntree->adt);
2088         direct_link_animdata(fd, ntree->adt);
2089         
2090         link_list(fd, &ntree->nodes);
2091         for(node= ntree->nodes.first; node; node= node->next) {
2092                 if(node->type == NODE_DYNAMIC) {
2093                         node->custom1= 0;
2094                         node->custom1= BSET(node->custom1, NODE_DYNAMIC_LOADED);
2095                         node->typeinfo= NULL;
2096                 }
2097                 
2098                 node->storage= newdataadr(fd, node->storage);
2099                 if(node->storage) {
2100                         
2101                         /* could be handlerized at some point */
2102                         if(ntree->type==NTREE_SHADER && (node->type==SH_NODE_CURVE_VEC || node->type==SH_NODE_CURVE_RGB))
2103                                 direct_link_curvemapping(fd, node->storage);
2104                         else if(ntree->type==NTREE_COMPOSIT) {
2105                                 if( ELEM4(node->type, CMP_NODE_TIME, CMP_NODE_CURVE_VEC, CMP_NODE_CURVE_RGB, CMP_NODE_HUECORRECT))
2106                                         direct_link_curvemapping(fd, node->storage);
2107                                 else if(ELEM3(node->type, CMP_NODE_IMAGE, CMP_NODE_VIEWER, CMP_NODE_SPLITVIEWER))
2108                                         ((ImageUser *)node->storage)->ok= 1;
2109                         }
2110                         else if( ntree->type==NTREE_TEXTURE && (node->type==TEX_NODE_CURVE_RGB || node->type==TEX_NODE_CURVE_TIME) ) {
2111                                 direct_link_curvemapping(fd, node->storage);
2112                         }
2113                 }
2114                 link_list(fd, &node->inputs);
2115                 link_list(fd, &node->outputs);
2116         }
2117         link_list(fd, &ntree->links);
2118         
2119         /* and we connect the rest */
2120         for(node= ntree->nodes.first; node; node= node->next) {
2121                 node->preview= newimaadr(fd, node->preview);
2122                 node->lasty= 0;
2123                 for(sock= node->inputs.first; sock; sock= sock->next)
2124                         sock->link= newdataadr(fd, sock->link);
2125                 for(sock= node->outputs.first; sock; sock= sock->next)
2126                         sock->ns.data= NULL;
2127         }
2128         for(link= ntree->links.first; link; link= link->next) {
2129                 link->fromnode= newdataadr(fd, link->fromnode);
2130                 link->tonode= newdataadr(fd, link->tonode);
2131                 link->fromsock= newdataadr(fd, link->fromsock);
2132                 link->tosock= newdataadr(fd, link->tosock);
2133         }
2134                 
2135         /* type verification is in lib-link */
2136 }
2137
2138 /* ************ READ ARMATURE ***************** */
2139
2140 /* temp struct used to transport needed info to lib_link_constraint_cb() */
2141 typedef struct tConstraintLinkData {
2142         FileData *fd;
2143         ID *id;
2144 } tConstraintLinkData;
2145 /* callback function used to relink constraint ID-links */
2146 static void lib_link_constraint_cb(bConstraint *con, ID **idpoin, void *userdata)
2147 {
2148         tConstraintLinkData *cld= (tConstraintLinkData *)userdata;
2149         *idpoin = newlibadr(cld->fd, cld->id->lib, *idpoin);
2150 }
2151
2152 static void lib_link_constraints(FileData *fd, ID *id, ListBase *conlist)
2153 {
2154         tConstraintLinkData cld;
2155         bConstraint *con;
2156         
2157         /* legacy fixes */
2158         for (con = conlist->first; con; con=con->next) {
2159                 /* patch for error introduced by changing constraints (dunno how) */
2160                 /* if con->data type changes, dna cannot resolve the pointer! (ton) */
2161                 if(con->data==NULL) {
2162                         con->type= CONSTRAINT_TYPE_NULL;
2163                 }
2164                 /* own ipo, all constraints have it */
2165                 con->ipo= newlibadr_us(fd, id->lib, con->ipo); // XXX depreceated - old animation system
2166         }
2167         
2168         /* relink all ID-blocks used by the constraints */
2169         cld.fd= fd;
2170         cld.id= id;
2171         
2172         id_loop_constraints(conlist, lib_link_constraint_cb, &cld);
2173 }
2174
2175 static void direct_link_constraints(FileData *fd, ListBase *lb)
2176 {
2177         bConstraint *con;
2178
2179         link_list(fd, lb);
2180         for (con=lb->first; con; con=con->next) {
2181                 con->data = newdataadr(fd, con->data);
2182                 
2183                 switch (con->type) {
2184                         case CONSTRAINT_TYPE_PYTHON:
2185                         {
2186                                 bPythonConstraint *data= con->data;
2187                                 
2188                                 link_list(fd, &data->targets);
2189                                 
2190                                 data->prop = newdataadr(fd, data->prop);
2191                                 if (data->prop)
2192                                         IDP_DirectLinkProperty(data->prop, (fd->flags & FD_FLAGS_SWITCH_ENDIAN), fd);
2193                         }
2194                                 break;
2195                         case CONSTRAINT_TYPE_SPLINEIK:
2196                         {
2197                                 bSplineIKConstraint *data= con->data;
2198                                 
2199                                 data->points= newdataadr(fd, data->points);
2200                         }
2201                                 break;
2202                         case CONSTRAINT_TYPE_KINEMATIC:
2203                         {
2204                                 con->lin_error = 0.f;
2205                                 con->rot_error = 0.f;
2206                         }
2207                                 break;
2208                 }
2209         }
2210 }
2211
2212 static void lib_link_pose(FileData *fd, Object *ob, bPose *pose)
2213 {
2214         bPoseChannel *pchan;
2215         bArmature *arm= ob->data;
2216         int rebuild;
2217         
2218         if (!pose || !arm)
2219                 return;
2220         
2221         /* always rebuild to match proxy or lib changes */
2222         rebuild= ob->proxy || (ob->id.lib==NULL && arm->id.lib);
2223
2224         for (pchan = pose->chanbase.first; pchan; pchan=pchan->next) {
2225                 lib_link_constraints(fd, (ID *)ob, &pchan->constraints);
2226                 
2227                 /* hurms... loop in a loop, but yah... later... (ton) */
2228                 pchan->bone= get_named_bone(arm, pchan->name);
2229                 
2230                 pchan->custom= newlibadr(fd, arm->id.lib, pchan->custom);
2231                 if(pchan->bone==NULL)
2232                         rebuild= 1;
2233                 else if(ob->id.lib==NULL && arm->id.lib) {
2234                         /* local pose selection copied to armature, bit hackish */
2235                         pchan->bone->flag &= ~BONE_SELECTED;
2236                         pchan->bone->flag |= pchan->selectflag;
2237                 }
2238         }
2239         
2240         if(rebuild) {
2241                 ob->recalc= OB_RECALC;
2242                 pose->flag |= POSE_RECALC;
2243         }
2244 }
2245
2246 static void lib_link_armature(FileData *fd, Main *main)
2247 {
2248         bArmature *arm;
2249
2250         arm= main->armature.first;
2251
2252         while(arm) {
2253                 if(arm->id.flag & LIB_NEEDLINK) {
2254                         if (arm->adt) lib_link_animdata(fd, &arm->id, arm->adt);
2255                         arm->id.flag -= LIB_NEEDLINK;
2256                 }
2257                 arm= arm->id.next;
2258         }
2259 }
2260
2261 static void direct_link_bones(FileData *fd, Bone* bone)
2262 {
2263         Bone    *child;
2264
2265         bone->parent= newdataadr(fd, bone->parent);
2266         bone->prop= newdataadr(fd, bone->prop);
2267         if(bone->prop)
2268                 IDP_DirectLinkProperty(bone->prop, (fd->flags & FD_FLAGS_SWITCH_ENDIAN), fd);
2269                 
2270         bone->flag &= ~BONE_DRAW_ACTIVE;
2271
2272         link_list(fd, &bone->childbase);
2273
2274         for(child=bone->childbase.first; child; child=child->next)
2275                 direct_link_bones(fd, child);
2276 }
2277
2278 static void direct_link_armature(FileData *fd, bArmature *arm)
2279 {
2280         Bone    *bone;
2281
2282         link_list(fd, &arm->bonebase);
2283         arm->edbo= NULL;
2284         arm->sketch = NULL;
2285         
2286         arm->adt= newdataadr(fd, arm->adt);
2287         direct_link_animdata(fd, arm->adt);
2288         
2289         bone=arm->bonebase.first;
2290         while (bone) {
2291                 direct_link_bones(fd, bone);
2292                 bone=bone->next;
2293         }
2294
2295         arm->act_bone= newdataadr(fd, arm->act_bone);
2296         arm->act_edbone= NULL;
2297 }
2298
2299 /* ************ READ CAMERA ***************** */
2300
2301 static void lib_link_camera(FileData *fd, Main *main)
2302 {
2303         Camera *ca;
2304
2305         ca= main->camera.first;
2306         while(ca) {
2307                 if(ca->id.flag & LIB_NEEDLINK) {
2308                         if (ca->adt) lib_link_animdata(fd, &ca->id, ca->adt);
2309                         
2310                         ca->ipo= newlibadr_us(fd, ca->id.lib, ca->ipo); // XXX depreceated - old animation system
2311                         
2312                         ca->dof_ob= newlibadr_us(fd, ca->id.lib, ca->dof_ob);
2313                         
2314                         ca->id.flag -= LIB_NEEDLINK;
2315                 }
2316                 ca= ca->id.next;
2317         }
2318 }
2319
2320 static void direct_link_camera(FileData *fd, Camera *ca)
2321 {
2322         ca->adt= newdataadr(fd, ca->adt);
2323         direct_link_animdata(fd, ca->adt);
2324 }
2325
2326
2327 /* ************ READ LAMP ***************** */
2328
2329 static void lib_link_lamp(FileData *fd, Main *main)
2330 {
2331         Lamp *la;
2332         MTex *mtex;
2333         int a;
2334
2335         la= main->lamp.first;
2336         while(la) {
2337                 if(la->id.flag & LIB_NEEDLINK) {
2338                         if (la->adt) lib_link_animdata(fd, &la->id, la->adt);
2339                         
2340                         for(a=0; a<MAX_MTEX; a++) {
2341                                 mtex= la->mtex[a];
2342                                 if(mtex) {
2343                                         mtex->tex= newlibadr_us(fd, la->id.lib, mtex->tex);
2344                                         mtex->object= newlibadr(fd, la->id.lib, mtex->object);
2345                                 }
2346                         }
2347                         
2348                         la->ipo= newlibadr_us(fd, la->id.lib, la->ipo); // XXX depreceated - old animation system
2349                         
2350                         la->id.flag -= LIB_NEEDLINK;
2351                 }
2352                 la= la->id.next;
2353         }
2354 }
2355
2356 static void direct_link_lamp(FileData *fd, Lamp *la)
2357 {
2358         int a;
2359         
2360         la->adt= newdataadr(fd, la->adt);
2361         direct_link_animdata(fd, la->adt);
2362
2363         for(a=0; a<MAX_MTEX; a++) {
2364                 la->mtex[a]= newdataadr(fd, la->mtex[a]);
2365         }
2366         
2367         la->curfalloff= newdataadr(fd, la->curfalloff);
2368         if(la->curfalloff)
2369                 direct_link_curvemapping(fd, la->curfalloff);
2370         
2371         la->preview = direct_link_preview_image(fd, la->preview);
2372 }
2373
2374 /* ************ READ keys ***************** */
2375
2376 static void lib_link_key(FileData *fd, Main *main)
2377 {
2378         Key *key;
2379
2380         key= main->key.first;
2381         while(key) {
2382                 if(key->id.flag & LIB_NEEDLINK) {
2383                         if(key->adt) lib_link_animdata(fd, &key->id, key->adt);
2384                         
2385                         key->ipo= newlibadr_us(fd, key->id.lib, key->ipo); // XXX depreceated - old animation system
2386                         key->from= newlibadr(fd, key->id.lib, key->from);
2387
2388                         key->id.flag -= LIB_NEEDLINK;
2389                 }
2390                 key= key->id.next;
2391         }
2392 }
2393
2394 static void switch_endian_keyblock(Key *key, KeyBlock *kb)
2395 {
2396         int elemsize, a, b;
2397         char *data, *poin, *cp;
2398
2399         elemsize= key->elemsize;
2400         data= kb->data;
2401
2402         for(a=0; a<kb->totelem; a++) {
2403
2404                 cp= key->elemstr;
2405                 poin= data;
2406
2407                 while( cp[0] ) {        /* cp[0]==amount */
2408
2409                         switch(cp[1]) {         /* cp[1]= type */
2410                         case IPO_FLOAT:
2411                         case IPO_BPOINT:
2412                         case IPO_BEZTRIPLE:
2413                                 b= cp[0];
2414                                 while(b--) {
2415                                         SWITCH_INT((*poin));
2416                                         poin+= 4;
2417                                 }
2418                                 break;
2419                         }
2420
2421                         cp+= 2;
2422
2423                 }
2424                 data+= elemsize;
2425         }
2426 }
2427
2428 static void direct_link_key(FileData *fd, Key *key)
2429 {
2430         KeyBlock *kb;
2431
2432         link_list(fd, &(key->block));
2433
2434         key->adt= newdataadr(fd, key->adt);
2435         direct_link_animdata(fd, key->adt);
2436         
2437         key->refkey= newdataadr(fd, key->refkey);
2438
2439         kb= key->block.first;
2440         while(kb) {
2441
2442                 kb->data= newdataadr(fd, kb->data);
2443
2444                 if(fd->flags & FD_FLAGS_SWITCH_ENDIAN)
2445                         switch_endian_keyblock(key, kb);
2446
2447                 kb= kb->next;
2448         }
2449 }
2450
2451 /* ************ READ mball ***************** */
2452
2453 static void lib_link_mball(FileData *fd, Main *main)
2454 {
2455         MetaBall *mb;
2456         int a;
2457
2458         mb= main->mball.first;
2459         while(mb) {
2460                 if(mb->id.flag & LIB_NEEDLINK) {
2461                         if (mb->adt) lib_link_animdata(fd, &mb->id, mb->adt);
2462                         
2463                         for(a=0; a<mb->totcol; a++) mb->mat[a]= newlibadr_us(fd, mb->id.lib, mb->mat[a]);
2464
2465                         mb->ipo= newlibadr_us(fd, mb->id.lib, mb->ipo); // XXX depreceated - old animation system
2466
2467                         mb->id.flag -= LIB_NEEDLINK;
2468                 }
2469                 mb= mb->id.next;
2470         }
2471 }
2472
2473 static void direct_link_mball(FileData *fd, MetaBall *mb)
2474 {
2475         mb->adt= newdataadr(fd, mb->adt);
2476         direct_link_animdata(fd, mb->adt);
2477         
2478         mb->mat= newdataadr(fd, mb->mat);
2479         test_pointer_array(fd, (void **)&mb->mat);
2480
2481         link_list(fd, &(mb->elems));
2482
2483         mb->disp.first= mb->disp.last= NULL;
2484         mb->editelems= NULL;
2485         mb->bb= NULL;
2486 /*      mb->edit_elems.first= mb->edit_elems.last= NULL;*/
2487         mb->lastelem= NULL;
2488 }
2489
2490 /* ************ READ WORLD ***************** */
2491
2492 static void lib_link_world(FileData *fd, Main *main)
2493 {
2494         World *wrld;
2495         MTex *mtex;
2496         int a;
2497
2498         wrld= main->world.first;
2499         while(wrld) {
2500                 if(wrld->id.flag & LIB_NEEDLINK) {
2501                         if (wrld->adt) lib_link_animdata(fd, &wrld->id, wrld->adt);
2502                         
2503                         wrld->ipo= newlibadr_us(fd, wrld->id.lib, wrld->ipo); // XXX depreceated - old animation system
2504                         
2505                         for(a=0; a<MAX_MTEX; a++) {
2506                                 mtex= wrld->mtex[a];
2507                                 if(mtex) {
2508                                         mtex->tex= newlibadr_us(fd, wrld->id.lib, mtex->tex);
2509                                         mtex->object= newlibadr(fd, wrld->id.lib, mtex->object);
2510                                 }
2511                         }
2512                         
2513                         wrld->id.flag -= LIB_NEEDLINK;
2514                 }
2515                 wrld= wrld->id.next;
2516         }
2517 }
2518
2519 static void direct_link_world(FileData *fd, World *wrld)
2520 {
2521         int a;
2522
2523         wrld->adt= newdataadr(fd, wrld->adt);
2524         direct_link_animdata(fd, wrld->adt);
2525
2526         for(a=0; a<MAX_MTEX; a++) {
2527                 wrld->mtex[a]= newdataadr(fd, wrld->mtex[a]);
2528         }
2529         wrld->preview = direct_link_preview_image(fd, wrld->preview);
2530 }
2531
2532
2533 /* ************ READ VFONT ***************** */
2534
2535 static void lib_link_vfont(FileData *fd, Main *main)
2536 {
2537         VFont *vf;
2538
2539         vf= main->vfont.first;
2540         while(vf) {
2541                 if(vf->id.flag & LIB_NEEDLINK) {
2542                         vf->id.flag -= LIB_NEEDLINK;
2543                 }
2544                 vf= vf->id.next;
2545         }
2546 }
2547
2548 static void direct_link_vfont(FileData *fd, VFont *vf)
2549 {
2550         vf->data= NULL;
2551         vf->packedfile= direct_link_packedfile(fd, vf->packedfile);
2552 }
2553
2554 /* ************ READ TEXT ****************** */
2555
2556 static void lib_link_text(FileData *fd, Main *main)
2557 {
2558         Text *text;
2559
2560         text= main->text.first;
2561         while(text) {
2562                 if(text->id.flag & LIB_NEEDLINK) {
2563                         text->id.flag -= LIB_NEEDLINK;
2564                 }
2565                 text= text->id.next;
2566         }
2567 }
2568
2569 static void direct_link_text(FileData *fd, Text *text)
2570 {
2571         TextLine *ln;
2572
2573         text->name= newdataadr(fd, text->name);
2574
2575         text->undo_pos= -1;
2576         text->undo_len= TXT_INIT_UNDO;
2577         text->undo_buf= MEM_mallocN(text->undo_len, "undo buf");
2578
2579         text->compiled= NULL;
2580
2581 /*
2582         if(text->flags & TXT_ISEXT) {
2583                 reopen_text(text);
2584         } else {
2585 */
2586
2587         link_list(fd, &text->lines);
2588         link_list(fd, &text->markers);
2589
2590         text->curl= newdataadr(fd, text->curl);
2591         text->sell= newdataadr(fd, text->sell);
2592
2593         ln= text->lines.first;
2594         while(ln) {
2595                 ln->line= newdataadr(fd, ln->line);
2596                 ln->format= NULL;
2597                 
2598                 if (ln->len != (int) strlen(ln->line)) {
2599                         printf("Error loading text, line lengths differ\n");
2600                         ln->len = strlen(ln->line);
2601                 }
2602
2603                 ln= ln->next;
2604         }
2605
2606         text->flags = (text->flags) & ~TXT_ISEXT;
2607
2608         text->id.us= 1;
2609 }
2610
2611 /* ************ READ IMAGE ***************** */
2612
2613 static void lib_link_image(FileData *fd, Main *main)
2614 {
2615         Image *ima;
2616
2617         ima= main->image.first;
2618         while (ima) {
2619                 if(ima->id.flag & LIB_NEEDLINK) {
2620                         if (ima->id.properties) IDP_LibLinkProperty(ima->id.properties, (fd->flags & FD_FLAGS_SWITCH_ENDIAN), fd);
2621
2622                         ima->id.flag -= LIB_NEEDLINK;
2623                 }
2624                 ima= ima->id.next;
2625         }
2626 }
2627
2628 static void link_ibuf_list(FileData *fd, ListBase *lb)
2629 {
2630         Link *ln, *prev;
2631         
2632         if(lb->first==NULL) return;
2633         
2634         lb->first= newimaadr(fd, lb->first);
2635         ln= lb->first;
2636         prev= NULL;
2637         while(ln) {
2638                 ln->next= newimaadr(fd, ln->next);
2639                 ln->prev= prev;
2640                 prev= ln;
2641                 ln= ln->next;
2642         }
2643         lb->last= prev;
2644 }
2645
2646 static void direct_link_image(FileData *fd, Image *ima)
2647 {
2648         /* for undo system, pointers could be restored */
2649         if(fd->imamap)
2650                 link_ibuf_list(fd, &ima->ibufs);
2651         else
2652                 ima->ibufs.first= ima->ibufs.last= NULL;
2653         
2654         /* if not restored, we keep the binded opengl index */
2655         if(ima->ibufs.first==NULL) {
2656                 ima->bindcode= 0;
2657                 ima->gputexture= NULL;
2658         }
2659         
2660         ima->anim= NULL;
2661         ima->rr= NULL;
2662         ima->repbind= NULL;
2663         ima->render_text= newdataadr(fd, ima->render_text);
2664         
2665         ima->packedfile = direct_link_packedfile(fd, ima->packedfile);
2666         ima->preview = direct_link_preview_image(fd, ima->preview);
2667         ima->ok= 1;
2668 }
2669
2670
2671 /* ************ READ CURVE ***************** */
2672
2673 static void lib_link_curve(FileData *fd, Main *main)
2674 {
2675         Curve *cu;
2676         int a;
2677
2678         cu= main->curve.first;
2679         while(cu) {
2680                 if(cu->id.flag & LIB_NEEDLINK) {
2681                         if(cu->adt) lib_link_animdata(fd, &cu->id, cu->adt);
2682
2683                         for(a=0; a<cu->totcol; a++) cu->mat[a]= newlibadr_us(fd, cu->id.lib, cu->mat[a]);
2684
2685                         cu->bevobj= newlibadr(fd, cu->id.lib, cu->bevobj);
2686                         cu->taperobj= newlibadr(fd, cu->id.lib, cu->taperobj);
2687                         cu->textoncurve= newlibadr(fd, cu->id.lib, cu->textoncurve);
2688                         cu->vfont= newlibadr_us(fd, cu->id.lib, cu->vfont);
2689                         cu->vfontb= newlibadr_us(fd, cu->id.lib, cu->vfontb);                   
2690                         cu->vfonti= newlibadr_us(fd, cu->id.lib, cu->vfonti);
2691                         cu->vfontbi= newlibadr_us(fd, cu->id.lib, cu->vfontbi);
2692
2693                         cu->ipo= newlibadr_us(fd, cu->id.lib, cu->ipo); // XXX depreceated - old animation system
2694                         cu->key= newlibadr_us(fd, cu->id.lib, cu->key);
2695
2696                         cu->id.flag -= LIB_NEEDLINK;
2697                 }
2698                 cu= cu->id.next;
2699         }
2700 }
2701
2702
2703 static void switch_endian_knots(Nurb *nu)
2704 {
2705         int len;
2706
2707         if(nu->knotsu) {
2708                 len= KNOTSU(nu);
2709                 while(len--) {
2710                         SWITCH_INT(nu->knotsu[len]);
2711                 }
2712         }
2713         if(nu->knotsv) {
2714                 len= KNOTSV(nu);
2715                 while(len--) {
2716                         SWITCH_INT(nu->knotsv[len]);
2717                 }
2718         }
2719 }
2720
2721 static void direct_link_curve(FileData *fd, Curve *cu)
2722 {
2723         Nurb *nu;
2724         TextBox *tb;
2725         
2726         cu->adt= newdataadr(fd, cu->adt);
2727         direct_link_animdata(fd, cu->adt);
2728         
2729         cu->mat= newdataadr(fd, cu->mat);
2730         test_pointer_array(fd, (void **)&cu->mat);
2731         cu->str= newdataadr(fd, cu->str);
2732         cu->strinfo= newdataadr(fd, cu->strinfo);       
2733         cu->tb= newdataadr(fd, cu->tb);
2734
2735         if(cu->vfont==0) link_list(fd, &(cu->nurb));
2736         else {
2737                 cu->nurb.first=cu->nurb.last= 0;
2738
2739                 tb= MEM_callocN(MAXTEXTBOX*sizeof(TextBox), "TextBoxread");
2740                 if (cu->tb) {
2741                         memcpy(tb, cu->tb, cu->totbox*sizeof(TextBox));
2742                         MEM_freeN(cu->tb);
2743                         cu->tb= tb;                     
2744                 } else {
2745                         cu->totbox = 1;
2746                         cu->actbox = 1;
2747                         cu->tb = tb;
2748                         cu->tb[0].w = cu->linewidth;
2749                 }               
2750                 if (cu->wordspace == 0.0) cu->wordspace = 1.0;
2751         }
2752
2753         cu->bev.first=cu->bev.last= NULL;
2754         cu->disp.first=cu->disp.last= NULL;
2755         cu->editnurb= NULL;
2756         cu->lastselbp= NULL;
2757         cu->path= NULL;
2758         cu->editfont= NULL;
2759         
2760         nu= cu->nurb.first;
2761         while(nu) {
2762                 nu->bezt= newdataadr(fd, nu->bezt);
2763                 nu->bp= newdataadr(fd, nu->bp);
2764                 nu->knotsu= newdataadr(fd, nu->knotsu);
2765                 nu->knotsv= newdataadr(fd, nu->knotsv);
2766                 if (cu->vfont==0) nu->charidx= nu->mat_nr;
2767
2768                 if(fd->flags & FD_FLAGS_SWITCH_ENDIAN) {
2769                         switch_endian_knots(nu);
2770                 }
2771
2772                 nu= nu->next;
2773         }
2774         cu->bb= NULL;
2775 }
2776
2777 /* ************ READ TEX ***************** */
2778
2779 static void lib_link_texture(FileData *fd, Main *main)
2780 {
2781         Tex *tex;
2782
2783         tex= main->tex.first;
2784         while(tex) {
2785                 if(tex->id.flag & LIB_NEEDLINK) {
2786                         if(tex->adt) lib_link_animdata(fd, &tex->id, tex->adt);
2787
2788                         tex->ima= newlibadr_us(fd, tex->id.lib, tex->ima);
2789                         tex->ipo= newlibadr_us(fd, tex->id.lib, tex->ipo);
2790                         if(tex->env) tex->env->object= newlibadr(fd, tex->id.lib, tex->env->object);
2791                         if(tex->pd)
2792                                 tex->pd->object= newlibadr(fd, tex->id.lib, tex->pd->object);
2793                         if(tex->vd) tex->vd->object= newlibadr(fd, tex->id.lib, tex->vd->object);
2794
2795                         if(tex->nodetree)
2796                                 lib_link_ntree(fd, &tex->id, tex->nodetree);
2797                         
2798                         tex->id.flag -= LIB_NEEDLINK;
2799                 }
2800                 tex= tex->id.next;
2801         }
2802 }
2803
2804 static void direct_link_texture(FileData *fd, Tex *tex)
2805 {
2806         tex->adt= newdataadr(fd, tex->adt);
2807         direct_link_animdata(fd, tex->adt);
2808         
2809         tex->plugin= newdataadr(fd, tex->plugin);
2810         if(tex->plugin) {
2811                 tex->plugin->handle= 0;
2812                 open_plugin_tex(tex->plugin);
2813                 /* initialize data for this instance, if an initialization
2814                  * function exists.
2815                  */
2816                 if (tex->plugin->instance_init)
2817                         tex->plugin->instance_init((void *) tex->plugin->data);
2818         }
2819         tex->coba= newdataadr(fd, tex->coba);
2820         tex->env= newdataadr(fd, tex->env);
2821         if(tex->env) {
2822                 tex->env->ima= NULL;
2823                 memset(tex->env->cube, 0, 6*sizeof(void *));
2824                 tex->env->ok= 0;
2825         }
2826         tex->pd= newdataadr(fd, tex->pd);
2827         if(tex->pd) {
2828                 tex->pd->point_tree = NULL;
2829                 tex->pd->coba= newdataadr(fd, tex->pd->coba);
2830         }
2831         
2832         tex->vd= newdataadr(fd, tex->vd);
2833         if(tex->vd) {
2834                 tex->vd->dataset = NULL;
2835         }
2836         
2837         tex->nodetree= newdataadr(fd, tex->nodetree);
2838         if(tex->nodetree)
2839                 direct_link_nodetree(fd, tex->nodetree);
2840         
2841         tex->preview = direct_link_preview_image(fd, tex->preview);
2842
2843         tex->iuser.ok= 1;
2844 }
2845
2846
2847
2848 /* ************ READ MATERIAL ***************** */
2849
2850 static void lib_link_material(FileData *fd, Main *main)
2851 {
2852         Material *ma;
2853         MTex *mtex;
2854         int a;
2855
2856         ma= main->mat.first;
2857         while(ma) {
2858                 if(ma->id.flag & LIB_NEEDLINK) {
2859                         if(ma->adt) lib_link_animdata(fd, &ma->id, ma->adt);
2860
2861                         /*Link ID Properties -- and copy this comment EXACTLY for easy finding
2862                         of library blocks that implement this.*/
2863                         if (ma->id.properties) IDP_LibLinkProperty(ma->id.properties, (fd->flags & FD_FLAGS_SWITCH_ENDIAN), fd);
2864
2865                         ma->ipo= newlibadr_us(fd, ma->id.lib, ma->ipo);
2866                         ma->group= newlibadr_us(fd, ma->id.lib, ma->group);
2867                         
2868                         for(a=0; a<MAX_MTEX; a++) {
2869                                 mtex= ma->mtex[a];
2870                                 if(mtex) {
2871                                         mtex->tex= newlibadr_us(fd, ma->id.lib, mtex->tex);
2872                                         mtex->object= newlibadr(fd, ma->id.lib, mtex->object);
2873                                 }
2874                         }
2875                         
2876                         if(ma->nodetree)
2877                                 lib_link_ntree(fd, &ma->id, ma->nodetree);
2878                         
2879                         ma->id.flag -= LIB_NEEDLINK;
2880                 }
2881                 ma= ma->id.next;
2882         }
2883 }
2884
2885 static void direct_link_material(FileData *fd, Material *ma)
2886 {
2887         int a;
2888
2889         ma->adt= newdataadr(fd, ma->adt);
2890         direct_link_animdata(fd, ma->adt);
2891         
2892         for(a=0; a<MAX_MTEX; a++) {
2893                 ma->mtex[a]= newdataadr(fd, ma->mtex[a]);
2894         }
2895
2896         ma->ramp_col= newdataadr(fd, ma->ramp_col);
2897         ma->ramp_spec= newdataadr(fd, ma->ramp_spec);
2898         
2899         ma->nodetree= newdataadr(fd, ma->nodetree);
2900         if(ma->nodetree)
2901                 direct_link_nodetree(fd, ma->nodetree);
2902
2903         ma->preview = direct_link_preview_image(fd, ma->preview);
2904         ma->gpumaterial.first = ma->gpumaterial.last = NULL;
2905 }
2906
2907 /* ************ READ PARTICLE SETTINGS ***************** */
2908
2909 static void direct_link_pointcache(FileData *fd, PointCache *cache)
2910 {
2911         if((cache->flag & PTCACHE_DISK_CACHE)==0) {
2912                 PTCacheMem *pm;
2913                 int i;
2914
2915                 link_list(fd, &cache->mem_cache);
2916
2917                 pm = cache->mem_cache.first;
2918
2919                 for(; pm; pm=pm->next) {
2920                         if(pm->index_array)
2921                                 pm->index_array = newdataadr(fd, pm->index_array);
2922                         
2923                         for(i=0; i<BPHYS_TOT_DATA; i++) {
2924                                 if(pm->data[i] && pm->data_types & (1<<i))
2925                                         pm->data[i] = newdataadr(fd, pm->data[i]);
2926                         }
2927                 }
2928         }
2929         else
2930                 cache->mem_cache.first = cache->mem_cache.last = NULL;
2931
2932         cache->flag &= ~PTCACHE_SIMULATION_VALID;
2933         cache->simframe= 0;
2934         cache->edit= NULL;
2935         cache->free_edit= NULL;
2936 }
2937
2938 static void direct_link_pointcache_list(FileData *fd, ListBase *ptcaches, PointCache **ocache)
2939 {
2940         PointCache *cache;
2941
2942         if(ptcaches->first) {
2943                 link_list(fd, ptcaches);
2944                 for(cache=ptcaches->first; cache; cache=cache->next)
2945                         direct_link_pointcache(fd, cache);
2946
2947                 *ocache = newdataadr(fd, *ocache);
2948         }
2949         else if(*ocache) {
2950                 /* old "single" caches need to be linked too */
2951                 *ocache = newdataadr(fd, *ocache);
2952                 direct_link_pointcache(fd, *ocache);
2953
2954                 ptcaches->first = ptcaches->last = *ocache;
2955         }
2956 }
2957
2958 void lib_link_partdeflect(FileData *fd, ID *id, PartDeflect *pd)
2959 {
2960         if(pd && pd->tex)
2961                 pd->tex=newlibadr_us(fd, id->lib, pd->tex);
2962 }
2963
2964 static void lib_link_particlesettings(FileData *fd, Main *main)
2965 {
2966         ParticleSettings *part;
2967         ParticleDupliWeight *dw;
2968
2969         part= main->particle.first;
2970         while(part) {
2971                 if(part->id.flag & LIB_NEEDLINK) {
2972                         if (part->adt) lib_link_animdata(fd, &part->id, part->adt);
2973                         part->ipo= newlibadr_us(fd, part->id.lib, part->ipo); // XXX depreceated - old animation system
2974                         
2975                         part->dup_ob = newlibadr(fd, part->id.lib, part->dup_ob);
2976                         part->dup_group = newlibadr(fd, part->id.lib, part->dup_group);
2977                         part->eff_group = newlibadr(fd, part->id.lib, part->eff_group);
2978                         part->bb_ob = newlibadr(fd, part->id.lib, part->bb_ob);
2979
2980                         lib_link_partdeflect(fd, &part->id, part->pd);
2981                         lib_link_partdeflect(fd, &part->id, part->pd2);
2982
2983                         if(part->effector_weights)
2984                                 part->effector_weights->group = newlibadr(fd, part->id.lib, part->effector_weights->group);
2985
2986                         dw = part->dupliweights.first;
2987                         for(; dw; dw=dw->next)
2988                                 dw->ob = newlibadr(fd, part->id.lib, dw->ob);
2989
2990                         if(part->boids) {
2991                                 BoidState *state = part->boids->states.first;
2992                                 BoidRule *rule;
2993                                 for(; state; state=state->next) {
2994                                         rule = state->rules.first;
2995                                 for(; rule; rule=rule->next)
2996                                         switch(rule->type) {
2997                                                 case eBoidRuleType_Goal:
2998                                                 case eBoidRuleType_Avoid:
2999                                                 {
3000                                                         BoidRuleGoalAvoid *brga = (BoidRuleGoalAvoid*)rule;
3001                                                         brga->ob = newlibadr(fd, part->id.lib, brga->ob);
3002                                                         break;
3003                                                 }
3004                                                 case eBoidRuleType_FollowLeader:
3005                                                 {
3006                                                         BoidRuleFollowLeader *brfl = (BoidRuleFollowLeader*)rule;
3007                                                         brfl->ob = newlibadr(fd, part->id.lib, brfl->ob);
3008                                                         break;
3009                                                 }
3010                                         }
3011                                 }
3012                         }
3013                         part->id.flag -= LIB_NEEDLINK;
3014                 }
3015                 part= part->id.next;
3016         }
3017 }
3018
3019 static void direct_link_partdeflect(PartDeflect *pd)
3020 {
3021         if(pd) pd->rng=NULL;
3022 }
3023
3024 static void direct_link_particlesettings(FileData *fd, ParticleSettings *part)
3025 {
3026         part->adt= newdataadr(fd, part->adt);
3027         part->pd= newdataadr(fd, part->pd);
3028         part->pd2= newdataadr(fd, part->pd2);
3029
3030         direct_link_partdeflect(part->pd);
3031         direct_link_partdeflect(part->pd2);
3032
3033         part->effector_weights = newdataadr(fd, part->effector_weights);
3034         if(!part->effector_weights)
3035                 part->effector_weights = BKE_add_effector_weights(part->eff_group);
3036
3037         link_list(fd, &part->dupliweights);
3038
3039         part->boids= newdataadr(fd, part->boids);
3040
3041         if(part->boids) {
3042                 BoidState *state;
3043                 link_list(fd, &part->boids->states);
3044                 
3045                 for(state=part->boids->states.first; state; state=state->next) {
3046                         link_list(fd, &state->rules);
3047                         link_list(fd, &state->conditions);
3048                         link_list(fd, &state->actions);
3049                 }
3050         }
3051 }
3052
3053 static void lib_link_particlesystems(FileData *fd, Object *ob, ID *id, ListBase *particles)
3054 {
3055         ParticleSystem *psys, *psysnext;
3056
3057         for(psys=particles->first; psys; psys=psysnext){
3058                 psysnext= psys->next;
3059                 
3060                 psys->part = newlibadr_us(fd, id->lib, psys->part);
3061                 if(psys->part) {
3062                         ParticleTarget *pt = psys->targets.first;
3063
3064                         for(; pt; pt=pt->next)
3065                                 pt->ob=newlibadr(fd, id->lib, pt->ob);
3066
3067                         psys->target_ob = newlibadr(fd, id->lib, psys->target_ob);
3068
3069                         if(psys->clmd) {
3070                                 /* XXX - from reading existing code this seems correct but intended usage of
3071                                  * pointcache should /w cloth should be added in 'ParticleSystem' - campbell */
3072                                 psys->clmd->point_cache= psys->pointcache;
3073                                 psys->clmd->ptcaches.first= psys->clmd->ptcaches.last= NULL;
3074                         }
3075                 }
3076                 else {
3077                         /* particle modifier must be removed before particle system */
3078                         ParticleSystemModifierData *psmd= psys_get_modifier(ob,psys);
3079                         BLI_remlink(&ob->modifiers, psmd);
3080                         modifier_free((ModifierData *)psmd);
3081
3082                         BLI_remlink(particles, psys);
3083                         MEM_freeN(psys);
3084                 }
3085         }
3086 }
3087 static void direct_link_particlesystems(FileData *fd, ListBase *particles)
3088 {
3089         ParticleSystem *psys;
3090         ParticleData *pa;
3091         int a;
3092
3093         for(psys=particles->first; psys; psys=psys->next) {
3094                 psys->particles=newdataadr(fd,psys->particles);
3095                 
3096                 if(psys->particles && psys->particles->hair){
3097                         for(a=0,pa=psys->particles; a<psys->totpart; a++, pa++)
3098                                 pa->hair=newdataadr(fd,pa->hair);
3099                 }
3100                 
3101                 if(psys->particles && psys->particles->keys){
3102                         for(a=0,pa=psys->particles; a<psys->totpart; a++, pa++) {
3103                                 pa->keys= NULL;
3104                                 pa->totkey= 0;
3105                         }
3106
3107                         psys->flag &= ~PSYS_KEYED;
3108                 }
3109
3110                 if(psys->particles && psys->particles->boid) {
3111                         pa = psys->particles;
3112                         pa->boid = newdataadr(fd, pa->boid);
3113                         for(a=1,pa++; a<psys->totpart; a++, pa++)
3114                                 pa->boid = (pa-1)->boid + 1;
3115                 }
3116                 else {
3117                         for(a=0,pa=psys->particles; a<psys->totpart; a++, pa++)
3118                                 pa->boid = NULL;
3119                 }
3120
3121
3122                 psys->child = newdataadr(fd,psys->child);
3123                 psys->effectors = NULL;
3124
3125                 link_list(fd, &psys->targets);
3126
3127                 psys->edit = NULL;
3128                 psys->free_edit = NULL;
3129                 psys->pathcache = NULL;
3130                 psys->childcache = NULL;
3131                 psys->pathcachebufs.first = psys->pathcachebufs.last = NULL;
3132                 psys->childcachebufs.first = psys->childcachebufs.last = NULL;
3133                 psys->frand = NULL;
3134                 psys->pdd = NULL;
3135
3136                 direct_link_pointcache_list(fd, &psys->ptcaches, &psys->pointcache);
3137
3138                 if(psys->clmd) {
3139                         psys->clmd = newdataadr(fd, psys->clmd);
3140                         psys->clmd->clothObject = NULL;
3141                         
3142                         psys->clmd->sim_parms= newdataadr(fd, psys->clmd->sim_parms);
3143                         psys->clmd->coll_parms= newdataadr(fd, psys->clmd->coll_parms);
3144                         
3145                         if(psys->clmd->sim_parms) {
3146                                 if(psys->clmd->sim_parms->presets > 10)
3147                                         psys->clmd->sim_parms->presets = 0;
3148                         }
3149
3150                         psys->hair_in_dm = psys->hair_out_dm = NULL;
3151
3152                         psys->clmd->point_cache = psys->pointcache;
3153                 }
3154
3155                 psys->tree = NULL;
3156         }
3157         return;
3158 }
3159
3160 /* ************ READ MESH ***************** */
3161
3162 static void lib_link_mtface(FileData *fd, Mesh *me, MTFace *mtface, int totface)
3163 {
3164         MTFace *tf= mtface;
3165         int i;
3166
3167         for (i=0; i<totface; i++, tf++) {
3168                 tf->tpage= newlibadr(fd, me->id.lib, tf->tpage);
3169                 if(tf->tpage && tf->tpage->id.us==0)
3170                         tf->tpage->id.us= 1;
3171         }
3172 }
3173
3174 static void lib_link_customdata_mtface(FileData *fd, Mesh *me, CustomData *fdata, int totface)
3175 {
3176         int i;  
3177         for(i=0; i<fdata->totlayer; i++) {
3178                 CustomDataLayer *layer = &fdata->layers[i];
3179                 
3180                 if(layer->type == CD_MTFACE)
3181                         lib_link_mtface(fd, me, layer->data, totface);
3182         }
3183
3184 }
3185
3186 static void lib_link_mesh(FileData *fd, Main *main)
3187 {
3188         Mesh *me;
3189
3190         me= main->mesh.first;
3191         while(me) {
3192                 if(me->id.flag & LIB_NEEDLINK) {
3193                         int i;
3194
3195                         /*Link ID Properties -- and copy this comment EXACTLY for easy finding
3196                         of library blocks that implement this.*/
3197                         if (me->id.properties) IDP_LibLinkProperty(me->id.properties, (fd->flags & FD_FLAGS_SWITCH_ENDIAN), fd);
3198                         if (me->adt) lib_link_animdata(fd, &me->id, me->adt);
3199
3200                         /* this check added for python created meshes */
3201                         if(me->mat) {
3202                                 for(i=0; i<me->totcol; i++) {
3203                                         me->mat[i]= newlibadr_us(fd, me->id.lib, me->mat[i]);
3204                                 }
3205                         }
3206                         else me->totcol= 0;
3207
3208                         me->ipo= newlibadr_us(fd, me->id.lib, me->ipo);
3209                         me->key= newlibadr_us(fd, me->id.lib, me->key);
3210                         me->texcomesh= newlibadr_us(fd, me->id.lib, me->texcomesh);
3211
3212                         lib_link_customdata_mtface(fd, me, &me->fdata, me->totface);
3213                         if(me->mr && me->mr->levels.first)
3214                                 lib_link_customdata_mtface(fd, me, &me->mr->fdata,
3215                                                            ((MultiresLevel*)me->mr->levels.first)->totface);
3216