Cessen Rigging Request: "Copy Transforms" Constraint
[blender.git] / source / blender / blenloader / intern / readfile.c
1 /*
2  * $Id$
3  *
4  * ***** BEGIN GPL LICENSE BLOCK *****
5  *
6  * This program is free software; you can redistribute it and/or
7  * modify it under the terms of the GNU General Public License
8  * as published by the Free Software Foundation; either version 2
9  * of the License, or (at your option) any later version.
10  *
11  * This program is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14  * GNU General Public License for more details.
15  *
16  * You should have received a copy of the GNU General Public License
17  * along with this program; if not, write to the Free Software Foundation,
18  * Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
19  *
20  * The Original Code is Copyright (C) 2001-2002 by NaN Holding BV.
21  * All rights reserved.
22  *
23  *
24  * Contributor(s): Blender Foundation
25  *
26  * ***** END GPL LICENSE BLOCK *****
27  *
28  */
29
30 #include "zlib.h"
31
32 #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         MTex *mtex;
1536         int a;
1537         
1538         /* only link ID pointers */
1539         for(brush= main->brush.first; brush; brush= brush->id.next) {
1540                 if(brush->id.flag & LIB_NEEDLINK) {
1541                         brush->id.flag -= LIB_NEEDLINK;
1542
1543                         brush->clone.image= newlibadr_us(fd, brush->id.lib, brush->clone.image);
1544                         
1545                         for(a=0; a<MAX_MTEX; a++) {
1546                                 mtex= brush->mtex[a];
1547                                 if(mtex)
1548                                         mtex->tex= newlibadr_us(fd, brush->id.lib, mtex->tex);
1549                         }
1550
1551                         brush->clone.image= newlibadr_us(fd, brush->id.lib, brush->clone.image);
1552                 }
1553         }
1554 }
1555
1556 static void direct_link_brush(FileData *fd, Brush *brush)
1557 {
1558         /* brush itself has been read */
1559         int a;
1560
1561         for(a=0; a<MAX_MTEX; a++)
1562                 brush->mtex[a]= newdataadr(fd, brush->mtex[a]);
1563
1564         /* fallof curve */
1565         brush->curve= newdataadr(fd, brush->curve);
1566         if(brush->curve)
1567                 direct_link_curvemapping(fd, brush->curve);
1568         else
1569                 brush_curve_preset(brush, BRUSH_PRESET_SHARP);
1570 }
1571
1572 static void direct_link_script(FileData *fd, Script *script)
1573 {
1574         script->id.us = 1;
1575         SCRIPT_SET_NULL(script)
1576 }
1577
1578
1579 /* ************ READ PACKEDFILE *************** */
1580
1581 static PackedFile *direct_link_packedfile(FileData *fd, PackedFile *oldpf)
1582 {
1583         PackedFile *pf= newdataadr(fd, oldpf);
1584
1585         if (pf) {
1586                 pf->data= newdataadr(fd, pf->data);
1587         }
1588
1589         return pf;
1590 }
1591
1592 /* ************ READ IMAGE PREVIEW *************** */
1593
1594 static PreviewImage *direct_link_preview_image(FileData *fd, PreviewImage *old_prv)
1595 {
1596         PreviewImage *prv= newdataadr(fd, old_prv);
1597
1598         if (prv) {
1599                 int i;
1600                 for (i=0; i < PREVIEW_MIPMAPS; ++i) {
1601                         if (prv->rect[i]) {
1602                                 prv->rect[i] = newdataadr(fd, prv->rect[i]);
1603                         }
1604                 }
1605         }
1606
1607         return prv;
1608 }
1609
1610 /* ************ READ ANIMATION STUFF ***************** */
1611
1612 /* Legacy Data Support (for Version Patching) ----------------------------- */
1613
1614 // XXX depreceated - old animation system
1615 static void lib_link_ipo(FileData *fd, Main *main)
1616 {
1617         Ipo *ipo;
1618
1619         ipo= main->ipo.first;
1620         while(ipo) {
1621                 if(ipo->id.flag & LIB_NEEDLINK) {
1622                         IpoCurve *icu;
1623                         for(icu= ipo->curve.first; icu; icu= icu->next) {
1624                                 if(icu->driver)
1625                                         icu->driver->ob= newlibadr(fd, ipo->id.lib, icu->driver->ob);
1626                         }
1627                         ipo->id.flag -= LIB_NEEDLINK;
1628                 }
1629                 ipo= ipo->id.next;
1630         }
1631 }
1632
1633 // XXX depreceated - old animation system
1634 static void direct_link_ipo(FileData *fd, Ipo *ipo)
1635 {
1636         IpoCurve *icu;
1637
1638         link_list(fd, &(ipo->curve));
1639         icu= ipo->curve.first;
1640         while(icu) {
1641                 icu->bezt= newdataadr(fd, icu->bezt);
1642                 icu->bp= newdataadr(fd, icu->bp);
1643                 icu->driver= newdataadr(fd, icu->driver);
1644                 icu= icu->next;
1645         }
1646 }
1647
1648 // XXX depreceated - old animation system
1649 static void lib_link_nlastrips(FileData *fd, ID *id, ListBase *striplist)
1650 {
1651         bActionStrip *strip;
1652         bActionModifier *amod;
1653         
1654         for (strip=striplist->first; strip; strip=strip->next){
1655                 strip->object = newlibadr(fd, id->lib, strip->object);
1656                 strip->act = newlibadr_us(fd, id->lib, strip->act);
1657                 strip->ipo = newlibadr(fd, id->lib, strip->ipo);
1658                 for(amod= strip->modifiers.first; amod; amod= amod->next)
1659                         amod->ob= newlibadr(fd, id->lib, amod->ob);
1660         }
1661 }
1662
1663 // XXX depreceated - old animation system
1664 static void direct_link_nlastrips(FileData *fd, ListBase *strips)
1665 {
1666         bActionStrip *strip;
1667         
1668         link_list(fd, strips);
1669         
1670         for(strip= strips->first; strip; strip= strip->next)
1671                 link_list(fd, &strip->modifiers);
1672 }
1673
1674 // XXX depreceated - old animation system
1675 static void lib_link_constraint_channels(FileData *fd, ID *id, ListBase *chanbase)
1676 {
1677         bConstraintChannel *chan;
1678
1679         for (chan=chanbase->first; chan; chan=chan->next){
1680                 chan->ipo = newlibadr_us(fd, id->lib, chan->ipo);
1681         }
1682 }
1683
1684 /* Data Linking ----------------------------- */
1685
1686 static void lib_link_fmodifiers(FileData *fd, ID *id, ListBase *list)
1687 {
1688         FModifier *fcm;
1689         
1690         for (fcm= list->first; fcm; fcm= fcm->next) {
1691                 /* data for specific modifiers */
1692                 switch (fcm->type) {
1693                         case FMODIFIER_TYPE_PYTHON:
1694                         {
1695                                 FMod_Python *data= (FMod_Python *)fcm->data;
1696                                 data->script = newlibadr(fd, id->lib, data->script);
1697                         }
1698                                 break;
1699                 }
1700         }
1701 }
1702
1703 static void lib_link_fcurves(FileData *fd, ID *id, ListBase *list) 
1704 {
1705         FCurve *fcu;
1706         
1707         if (list == NULL)
1708                 return;
1709         
1710         /* relink ID-block references... */
1711         for (fcu= list->first; fcu; fcu= fcu->next) {
1712                 /* driver data */
1713                 if (fcu->driver) {
1714                         ChannelDriver *driver= fcu->driver;
1715                         DriverTarget *dtar;
1716                         
1717                         for (dtar= driver->targets.first; dtar; dtar= dtar->next)
1718                                 dtar->id= newlibadr(fd, id->lib, dtar->id); 
1719                 }
1720                 
1721                 /* modifiers */
1722                 lib_link_fmodifiers(fd, id, &fcu->modifiers);
1723         }
1724 }
1725
1726
1727 /* NOTE: this assumes that link_list has already been called on the list */
1728 static void direct_link_fmodifiers(FileData *fd, ListBase *list)
1729 {
1730         FModifier *fcm;
1731         
1732         for (fcm= list->first; fcm; fcm= fcm->next) {
1733                 /* relink general data */
1734                 fcm->data = newdataadr(fd, fcm->data);
1735                 fcm->edata= NULL;
1736                 
1737                 /* do relinking of data for specific types */
1738                 switch (fcm->type) {
1739                         case FMODIFIER_TYPE_GENERATOR:
1740                         {
1741                                 FMod_Generator *data= (FMod_Generator *)fcm->data;
1742                                 
1743                                 data->coefficients= newdataadr(fd, data->coefficients);
1744                         }
1745                                 break;
1746                         case FMODIFIER_TYPE_ENVELOPE:
1747                         {
1748                                 FMod_Envelope *data= (FMod_Envelope *)fcm->data;
1749                                 
1750                                 data->data= newdataadr(fd, data->data);
1751                         }
1752                                 break;
1753                         case FMODIFIER_TYPE_PYTHON:
1754                         {
1755                                 FMod_Python *data= (FMod_Python *)fcm->data;
1756                                 
1757                                 data->prop = newdataadr(fd, data->prop);
1758                                 IDP_DirectLinkProperty(data->prop, (fd->flags & FD_FLAGS_SWITCH_ENDIAN), fd);
1759                         }
1760                                 break;
1761                 }
1762         }
1763 }
1764
1765 /* NOTE: this assumes that link_list has already been called on the list */
1766 static void direct_link_fcurves(FileData *fd, ListBase *list)
1767 {
1768         FCurve *fcu;
1769         
1770         /* link F-Curve data to F-Curve again (non ID-libs) */
1771         for (fcu= list->first; fcu; fcu= fcu->next) {
1772                 /* curve data */
1773                 fcu->bezt= newdataadr(fd, fcu->bezt);
1774                 fcu->fpt= newdataadr(fd, fcu->fpt);
1775                 
1776                 /* rna path */
1777                 fcu->rna_path= newdataadr(fd, fcu->rna_path);
1778                 
1779                 /* group */
1780                 fcu->grp= newdataadr(fd, fcu->grp);
1781                 
1782                 /* driver */
1783                 fcu->driver= newdataadr(fd, fcu->driver);
1784                 if (fcu->driver) {
1785                         ChannelDriver *driver= fcu->driver;
1786                         DriverTarget *dtar;
1787                         
1788                         /* relink targets and their paths */
1789                         link_list(fd, &driver->targets);
1790                         for (dtar= driver->targets.first; dtar; dtar= dtar->next)
1791                                 dtar->rna_path= newdataadr(fd, dtar->rna_path);
1792                 }
1793                 
1794                 /* modifiers */
1795                 link_list(fd, &fcu->modifiers);
1796                 direct_link_fmodifiers(fd, &fcu->modifiers);
1797         }
1798 }
1799
1800
1801 static void lib_link_action(FileData *fd, Main *main)
1802 {
1803         bAction *act;
1804         bActionChannel *chan;
1805
1806         for (act= main->action.first; act; act= act->id.next) {
1807                 if (act->id.flag & LIB_NEEDLINK) {
1808                         act->id.flag -= LIB_NEEDLINK;
1809                         
1810 // XXX depreceated - old animation system <<<
1811                         for (chan=act->chanbase.first; chan; chan=chan->next) {
1812                                 chan->ipo= newlibadr_us(fd, act->id.lib, chan->ipo);
1813                                 lib_link_constraint_channels(fd, &act->id, &chan->constraintChannels);
1814                         }
1815 // >>> XXX depreceated - old animation system
1816                         
1817                         lib_link_fcurves(fd, &act->id, &act->curves);
1818                 }
1819         }
1820 }
1821
1822 static void direct_link_action(FileData *fd, bAction *act)
1823 {
1824         bActionChannel *achan; // XXX depreceated - old animation system
1825         bActionGroup *agrp;
1826
1827         link_list(fd, &act->curves);
1828         link_list(fd, &act->chanbase); // XXX depreceated - old animation system
1829         link_list(fd, &act->groups);
1830         link_list(fd, &act->markers);
1831
1832 // XXX depreceated - old animation system <<<
1833         for (achan = act->chanbase.first; achan; achan=achan->next) {
1834                 achan->grp= newdataadr(fd, achan->grp);
1835                 
1836                 link_list(fd, &achan->constraintChannels);
1837         }
1838 // >>> XXX depreceated - old animation system
1839
1840         direct_link_fcurves(fd, &act->curves);
1841         
1842         for (agrp = act->groups.first; agrp; agrp= agrp->next) {
1843                 agrp->channels.first= newdataadr(fd, agrp->channels.first);
1844                 agrp->channels.last= newdataadr(fd, agrp->channels.last);
1845         }
1846 }
1847
1848 static void lib_link_nladata_strips(FileData *fd, ID *id, ListBase *list)
1849 {
1850         NlaStrip *strip;
1851         
1852         for (strip= list->first; strip; strip= strip->next) {
1853                 /* check strip's children */
1854                 lib_link_nladata_strips(fd, id, &strip->strips);
1855                 
1856                 /* check strip's F-Curves */
1857                 lib_link_fcurves(fd, id, &strip->fcurves);
1858                 
1859                 /* reassign the counted-reference to action */
1860                 strip->act = newlibadr_us(fd, id->lib, strip->act);
1861         }
1862 }
1863
1864 static void lib_link_nladata(FileData *fd, ID *id, ListBase *list)
1865 {
1866         NlaTrack *nlt;
1867         
1868         /* we only care about the NLA strips inside the tracks */
1869         for (nlt= list->first; nlt; nlt= nlt->next) {
1870                 lib_link_nladata_strips(fd, id, &nlt->strips);
1871         }
1872 }
1873
1874 /* This handles Animato NLA-Strips linking 
1875  * NOTE: this assumes that link_list has already been called on the list 
1876  */
1877 static void direct_link_nladata_strips(FileData *fd, ListBase *list)
1878 {
1879         NlaStrip *strip;
1880         
1881         for (strip= list->first; strip; strip= strip->next) {
1882                 /* strip's child strips */
1883                 link_list(fd, &strip->strips);
1884                 direct_link_nladata_strips(fd, &strip->strips);
1885                 
1886                 /* strip's F-Curves */
1887                 link_list(fd, &strip->fcurves);
1888                 direct_link_fcurves(fd, &strip->fcurves);
1889                 
1890                 /* strip's F-Modifiers */
1891                 link_list(fd, &strip->modifiers);
1892                 direct_link_fcurves(fd, &strip->modifiers);
1893         }
1894 }
1895
1896 /* NOTE: this assumes that link_list has already been called on the list */
1897 static void direct_link_nladata(FileData *fd, ListBase *list)
1898 {
1899         NlaTrack *nlt;
1900         
1901         for (nlt= list->first; nlt; nlt= nlt->next) {
1902                 /* relink list of strips */
1903                 link_list(fd, &nlt->strips);
1904                 
1905                 /* relink strip data */
1906                 direct_link_nladata_strips(fd, &nlt->strips);
1907         }
1908 }
1909
1910 /* ------- */
1911
1912 static void lib_link_keyingsets(FileData *fd, ID *id, ListBase *list)
1913 {
1914         KeyingSet *ks;
1915         KS_Path *ksp;
1916         
1917         /* here, we're only interested in the ID pointer stored in some of the paths */
1918         for (ks= list->first; ks; ks= ks->next) {
1919                 for (ksp= ks->paths.first; ksp; ksp= ksp->next) {
1920                         ksp->id= newlibadr(fd, id->lib, ksp->id); 
1921                 }
1922         }
1923 }
1924
1925 /* NOTE: this assumes that link_list has already been called on the list */
1926 static void direct_link_keyingsets(FileData *fd, ListBase *list)
1927 {
1928         KeyingSet *ks;
1929         KS_Path *ksp;
1930         
1931         /* link KeyingSet data to KeyingSet again (non ID-libs) */
1932         for (ks= list->first; ks; ks= ks->next) {
1933                 /* paths */
1934                 link_list(fd, &ks->paths);
1935                 
1936                 for (ksp= ks->paths.first; ksp; ksp= ksp->next) {
1937                         /* rna path */
1938                         ksp->rna_path= newdataadr(fd, ksp->rna_path);
1939                 }
1940         }
1941 }
1942
1943 /* ------- */
1944
1945 static void lib_link_animdata(FileData *fd, ID *id, AnimData *adt)
1946 {
1947         if (adt == NULL)
1948                 return;
1949         
1950         /* link action data */
1951         adt->action= newlibadr_us(fd, id->lib, adt->action);
1952         adt->tmpact= newlibadr_us(fd, id->lib, adt->tmpact);
1953         
1954         /* link drivers */
1955         lib_link_fcurves(fd, id, &adt->drivers);
1956         
1957         /* overrides don't have lib-link for now, so no need to do anything */
1958         
1959         /* link NLA-data */
1960         lib_link_nladata(fd, id, &adt->nla_tracks);
1961 }
1962
1963 static void direct_link_animdata(FileData *fd, AnimData *adt)
1964 {
1965         /* NOTE: must have called newdataadr already before doing this... */
1966         if (adt == NULL)
1967                 return;
1968         
1969         /* link drivers */
1970         link_list(fd, &adt->drivers);
1971         direct_link_fcurves(fd, &adt->drivers);
1972         
1973         /* link overrides */
1974         // TODO...
1975         
1976         /* link NLA-data */
1977         link_list(fd, &adt->nla_tracks);
1978         direct_link_nladata(fd, &adt->nla_tracks);
1979         
1980         /* clear temp pointers that may have been set... */
1981         // TODO: it's probably only a small cost to reload this anyway...
1982         adt->actstrip= NULL;
1983 }       
1984
1985 /* ************ READ MOTION PATHS *************** */
1986
1987 /* direct data for cache */
1988 static void direct_link_motionpath(FileData *fd, bMotionPath *mpath)
1989 {
1990         /* sanity check */
1991         if (mpath == NULL)
1992                 return;
1993         
1994         /* relink points cache */
1995         mpath->points= newdataadr(fd, mpath->points);
1996 }
1997
1998 /* ************ READ NODE TREE *************** */
1999
2000 /* singe node tree (also used for material/scene trees), ntree is not NULL */
2001 static void lib_link_ntree(FileData *fd, ID *id, bNodeTree *ntree)
2002 {
2003         bNode *node;
2004         
2005         if(ntree->adt) lib_link_animdata(fd, &ntree->id, ntree->adt);
2006         
2007         ntree->gpd= newlibadr_us(fd, id->lib, ntree->gpd);
2008         
2009         for(node= ntree->nodes.first; node; node= node->next)
2010                 node->id= newlibadr_us(fd, id->lib, node->id);
2011 }
2012
2013 /* library ntree linking after fileread */
2014 static void lib_link_nodetree(FileData *fd, Main *main)
2015 {
2016         bNodeTree *ntree;
2017         
2018         /* only link ID pointers */
2019         for(ntree= main->nodetree.first; ntree; ntree= ntree->id.next) {
2020                 if(ntree->id.flag & LIB_NEEDLINK) {
2021                         ntree->id.flag -= LIB_NEEDLINK;
2022                         lib_link_ntree(fd, &ntree->id, ntree);
2023                 }
2024         }
2025 }
2026
2027 /* verify types for nodes and groups, all data has to be read */
2028 /* open = 0: appending/linking, open = 1: open new file (need to clean out dynamic
2029 * typedefs*/
2030 static void lib_verify_nodetree(Main *main, int open)
2031 {
2032         Scene *sce;
2033         Material *ma;
2034         Tex *tx;
2035         bNodeTree *ntree;
2036         
2037         /* this crashes blender on undo/redo
2038                 if(open==1) {
2039                         reinit_nodesystem();
2040                 }*/
2041         
2042         /* now create the own typeinfo structs an verify nodes */
2043         /* here we still assume no groups in groups */
2044         for(ntree= main->nodetree.first; ntree; ntree= ntree->id.next) {
2045                 ntreeVerifyTypes(ntree);        /* internal nodes, no groups! */
2046                 ntreeMakeOwnType(ntree);        /* for group usage */
2047         }
2048         
2049         /* now verify all types in material trees, groups are set OK now */
2050         for(ma= main->mat.first; ma; ma= ma->id.next) {
2051                 if(ma->nodetree)
2052                         ntreeVerifyTypes(ma->nodetree);
2053         }
2054         /* and scene trees */
2055         for(sce= main->scene.first; sce; sce= sce->id.next) {
2056                 if(sce->nodetree)
2057                         ntreeVerifyTypes(sce->nodetree);
2058         }
2059         /* and texture trees */
2060         for(tx= main->tex.first; tx; tx= tx->id.next) {
2061                 if(tx->nodetree)
2062                         ntreeVerifyTypes(tx->nodetree);
2063         }
2064 }
2065
2066
2067
2068 /* ntree itself has been read! */
2069 static void direct_link_nodetree(FileData *fd, bNodeTree *ntree)
2070 {
2071         /* note: writing and reading goes in sync, for speed */
2072         bNode *node;
2073         bNodeSocket *sock;
2074         bNodeLink *link;
2075         
2076         ntree->init= 0;         /* to set callbacks and force setting types */
2077         ntree->owntype= NULL;
2078         ntree->timecursor= NULL;
2079         
2080         ntree->adt= newdataadr(fd, ntree->adt);
2081         direct_link_animdata(fd, ntree->adt);
2082         
2083         link_list(fd, &ntree->nodes);
2084         for(node= ntree->nodes.first; node; node= node->next) {
2085                 if(node->type == NODE_DYNAMIC) {
2086                         node->custom1= 0;
2087                         node->custom1= BSET(node->custom1, NODE_DYNAMIC_LOADED);
2088                         node->typeinfo= NULL;
2089                 }
2090                 
2091                 node->storage= newdataadr(fd, node->storage);
2092                 if(node->storage) {
2093                         
2094                         /* could be handlerized at some point */
2095                         if(ntree->type==NTREE_SHADER && (node->type==SH_NODE_CURVE_VEC || node->type==SH_NODE_CURVE_RGB))
2096                                 direct_link_curvemapping(fd, node->storage);
2097                         else if(ntree->type==NTREE_COMPOSIT) {
2098                                 if( ELEM3(node->type, CMP_NODE_TIME, CMP_NODE_CURVE_VEC, CMP_NODE_CURVE_RGB))
2099                                         direct_link_curvemapping(fd, node->storage);
2100                                 else if(ELEM3(node->type, CMP_NODE_IMAGE, CMP_NODE_VIEWER, CMP_NODE_SPLITVIEWER))
2101                                         ((ImageUser *)node->storage)->ok= 1;
2102                         }
2103                         else if( ntree->type==NTREE_TEXTURE && (node->type==TEX_NODE_CURVE_RGB || node->type==TEX_NODE_CURVE_TIME) ) {
2104                                 direct_link_curvemapping(fd, node->storage);
2105                         }
2106                 }
2107                 link_list(fd, &node->inputs);
2108                 link_list(fd, &node->outputs);
2109         }
2110         link_list(fd, &ntree->links);
2111         
2112         /* and we connect the rest */
2113         for(node= ntree->nodes.first; node; node= node->next) {
2114                 node->preview= newimaadr(fd, node->preview);
2115                 node->lasty= 0;
2116                 for(sock= node->inputs.first; sock; sock= sock->next)
2117                         sock->link= newdataadr(fd, sock->link);
2118                 for(sock= node->outputs.first; sock; sock= sock->next)
2119                         sock->ns.data= NULL;
2120         }
2121         for(link= ntree->links.first; link; link= link->next) {
2122                 link->fromnode= newdataadr(fd, link->fromnode);
2123                 link->tonode= newdataadr(fd, link->tonode);
2124                 link->fromsock= newdataadr(fd, link->fromsock);
2125                 link->tosock= newdataadr(fd, link->tosock);
2126         }
2127         
2128         /* set selin and selout */
2129         for(node= ntree->nodes.first; node; node= node->next) {
2130                 for(sock= node->inputs.first; sock; sock= sock->next) {
2131                         if(sock->flag & SOCK_SEL) {
2132                                 ntree->selin= sock;
2133                                 break;
2134                         }
2135                 }
2136                 for(sock= node->outputs.first; sock; sock= sock->next) {
2137                         if(sock->flag & SOCK_SEL) {
2138                                 ntree->selout= sock;
2139                                 break;
2140                         }
2141                 }
2142         }
2143         
2144         /* type verification is in lib-link */
2145 }
2146
2147 /* ************ READ ARMATURE ***************** */
2148
2149 static void lib_link_constraints(FileData *fd, ID *id, ListBase *conlist)
2150 {
2151         bConstraint *con;
2152
2153         for (con = conlist->first; con; con=con->next) {
2154                 /* patch for error introduced by changing constraints (dunno how) */
2155                 /* if con->data type changes, dna cannot resolve the pointer! (ton) */
2156                 if(con->data==NULL) {
2157                         con->type= CONSTRAINT_TYPE_NULL;
2158                 }
2159                 /* own ipo, all constraints have it */
2160                 con->ipo= newlibadr_us(fd, id->lib, con->ipo); // XXX depreceated - old animation system
2161                 
2162                 switch (con->type) {
2163                 case CONSTRAINT_TYPE_PYTHON:
2164                         {
2165                                 bPythonConstraint *data= (bPythonConstraint*)con->data;
2166                                 bConstraintTarget *ct;
2167                                 
2168                                 for (ct= data->targets.first; ct; ct= ct->next)
2169                                         ct->tar = newlibadr(fd, id->lib, ct->tar);
2170                                         
2171                                 data->text = newlibadr(fd, id->lib, data->text);
2172                                 //IDP_LibLinkProperty(data->prop, (fd->flags & FD_FLAGS_SWITCH_ENDIAN), fd);
2173                         }
2174                         break;
2175                 case CONSTRAINT_TYPE_ACTION:
2176                         {
2177                                 bActionConstraint *data;
2178                                 data= ((bActionConstraint*)con->data);
2179                                 data->tar = newlibadr(fd, id->lib, data->tar);
2180                                 data->act = newlibadr(fd, id->lib, data->act);
2181                         }
2182                         break;
2183                 case CONSTRAINT_TYPE_LOCLIKE:
2184                         {
2185                                 bLocateLikeConstraint *data;
2186                                 data= ((bLocateLikeConstraint*)con->data);
2187                                 data->tar = newlibadr(fd, id->lib, data->tar);
2188                         }
2189                         break;
2190                 case CONSTRAINT_TYPE_ROTLIKE:
2191                         {
2192                                 bRotateLikeConstraint *data;
2193                                 data= ((bRotateLikeConstraint*)con->data);
2194                                 data->tar = newlibadr(fd, id->lib, data->tar);
2195                         }
2196                         break;
2197                 case CONSTRAINT_TYPE_SIZELIKE:
2198                         {
2199                                 bSizeLikeConstraint *data;
2200                                 data= ((bSizeLikeConstraint*)con->data);
2201                                 data->tar = newlibadr(fd, id->lib, data->tar);
2202                         }
2203                         break;
2204                 case CONSTRAINT_TYPE_KINEMATIC:
2205                         {
2206                                 bKinematicConstraint *data;
2207                                 data = ((bKinematicConstraint*)con->data);
2208                                 data->tar = newlibadr(fd, id->lib, data->tar);
2209                                 data->poletar = newlibadr(fd, id->lib, data->poletar);
2210                                 con->lin_error = 0.f;
2211                                 con->rot_error = 0.f;
2212                         }
2213                         break;
2214                 case CONSTRAINT_TYPE_TRACKTO:
2215                         {
2216                                 bTrackToConstraint *data;
2217                                 data = ((bTrackToConstraint*)con->data);
2218                                 data->tar = newlibadr(fd, id->lib, data->tar);
2219                         }
2220                         break;
2221                 case CONSTRAINT_TYPE_MINMAX:
2222                         {
2223                                 bMinMaxConstraint *data;
2224                                 data = ((bMinMaxConstraint*)con->data);
2225                                 data->tar = newlibadr(fd, id->lib, data->tar);
2226                         }
2227                         break;
2228                 case CONSTRAINT_TYPE_LOCKTRACK:
2229                         {
2230                                 bLockTrackConstraint *data;
2231                                 data= ((bLockTrackConstraint*)con->data);
2232                                 data->tar = newlibadr(fd, id->lib, data->tar);
2233                         }
2234                         break;
2235                 case CONSTRAINT_TYPE_FOLLOWPATH:
2236                         {
2237                                 bFollowPathConstraint *data;
2238                                 data= ((bFollowPathConstraint*)con->data);
2239                                 data->tar = newlibadr(fd, id->lib, data->tar);
2240                         }
2241                         break;
2242                 case CONSTRAINT_TYPE_STRETCHTO:
2243                         {
2244                                 bStretchToConstraint *data;
2245                                 data= ((bStretchToConstraint*)con->data);
2246                                 data->tar = newlibadr(fd, id->lib, data->tar);
2247                         }
2248                         break;
2249                 case CONSTRAINT_TYPE_RIGIDBODYJOINT:
2250                         {
2251                                 bRigidBodyJointConstraint *data;
2252                                 data= ((bRigidBodyJointConstraint*)con->data);
2253                                 data->tar = newlibadr(fd, id->lib, data->tar);
2254                         }
2255                         break;
2256                 case CONSTRAINT_TYPE_CLAMPTO:
2257                         {
2258                                 bClampToConstraint *data;
2259                                 data= ((bClampToConstraint*)con->data);
2260                                 data->tar = newlibadr(fd, id->lib, data->tar);
2261                         }
2262                         break;
2263                 case CONSTRAINT_TYPE_CHILDOF:
2264                         {
2265                                 bChildOfConstraint *data;
2266                                 data= ((bChildOfConstraint*)con->data);
2267                                 data->tar = newlibadr(fd, id->lib, data->tar);
2268                         }
2269                         break;
2270                 case CONSTRAINT_TYPE_TRANSFORM:
2271                         {
2272                                 bTransformConstraint *data;
2273                                 data= ((bTransformConstraint*)con->data);
2274                                 data->tar = newlibadr(fd, id->lib, data->tar);
2275                         }
2276                         break;
2277                 case CONSTRAINT_TYPE_DISTLIMIT:
2278                         {
2279                                 bDistLimitConstraint *data;
2280                                 data= ((bDistLimitConstraint*)con->data);
2281                                 data->tar = newlibadr(fd, id->lib, data->tar);
2282                         }
2283                         break;
2284                 case CONSTRAINT_TYPE_SHRINKWRAP:
2285                         {
2286                                 bShrinkwrapConstraint *data;
2287                                 data= ((bShrinkwrapConstraint*)con->data);
2288                                 data->target = newlibadr(fd, id->lib, data->target);
2289                         }
2290                         break;
2291                 case CONSTRAINT_TYPE_DAMPTRACK:
2292                         {
2293                                 bDampTrackConstraint *data;
2294                                 data= ((bDampTrackConstraint*)con->data);
2295                                 data->tar = newlibadr(fd, id->lib, data->tar);
2296                         }
2297                         break;
2298                 case CONSTRAINT_TYPE_SPLINEIK:
2299                         {
2300                                 bSplineIKConstraint *data;
2301                                 data= ((bSplineIKConstraint*)con->data);
2302                                 data->tar = newlibadr(fd, id->lib, data->tar);
2303                         }
2304                         break;
2305                 case CONSTRAINT_TYPE_TRANSLIKE:
2306                         {
2307                                 bTransLikeConstraint *data;
2308                                 data= ((bTransLikeConstraint*)con->data);
2309                                 data->tar = newlibadr(fd, id->lib, data->tar);
2310                         }
2311                         break;
2312                 case CONSTRAINT_TYPE_NULL:
2313                         break;
2314                 }
2315         }
2316 }
2317
2318 static void direct_link_constraints(FileData *fd, ListBase *lb)
2319 {
2320         bConstraint *cons;
2321
2322         link_list(fd, lb);
2323         for (cons=lb->first; cons; cons=cons->next) {
2324                 cons->data = newdataadr(fd, cons->data);
2325                 
2326                 if (cons->type == CONSTRAINT_TYPE_PYTHON) {
2327                         bPythonConstraint *data= cons->data;
2328                         
2329                         link_list(fd, &data->targets);
2330                         
2331                         data->prop = newdataadr(fd, data->prop);
2332                         if (data->prop)
2333                                 IDP_DirectLinkProperty(data->prop, (fd->flags & FD_FLAGS_SWITCH_ENDIAN), fd);
2334                 }
2335                 else if (cons->type == CONSTRAINT_TYPE_SPLINEIK) {
2336                         bSplineIKConstraint *data= cons->data;
2337                         
2338                         data->points= newdataadr(fd, data->points);
2339                 }
2340         }
2341 }
2342
2343 static void lib_link_pose(FileData *fd, Object *ob, bPose *pose)
2344 {
2345         bPoseChannel *pchan;
2346         bArmature *arm= ob->data;
2347         int rebuild;
2348         
2349         if (!pose || !arm)
2350                 return;
2351         
2352         /* always rebuild to match proxy or lib changes */
2353         rebuild= ob->proxy || (ob->id.lib==NULL && arm->id.lib);
2354
2355         for (pchan = pose->chanbase.first; pchan; pchan=pchan->next) {
2356                 lib_link_constraints(fd, (ID *)ob, &pchan->constraints);
2357                 
2358                 /* hurms... loop in a loop, but yah... later... (ton) */
2359                 pchan->bone= get_named_bone(arm, pchan->name);
2360                 
2361                 pchan->custom= newlibadr(fd, arm->id.lib, pchan->custom);
2362                 if(pchan->bone==NULL)
2363                         rebuild= 1;
2364                 else if(ob->id.lib==NULL && arm->id.lib) {
2365                         /* local pose selection copied to armature, bit hackish */
2366                         pchan->bone->flag &= ~BONE_SELECTED;
2367                         pchan->bone->flag |= pchan->selectflag;
2368                 }
2369         }
2370         
2371         if(rebuild) {
2372                 ob->recalc= OB_RECALC;
2373                 pose->flag |= POSE_RECALC;
2374         }
2375 }
2376
2377 static void lib_link_armature(FileData *fd, Main *main)
2378 {
2379         bArmature *arm;
2380
2381         arm= main->armature.first;
2382
2383         while(arm) {
2384                 if(arm->id.flag & LIB_NEEDLINK) {
2385                         if (arm->adt) lib_link_animdata(fd, &arm->id, arm->adt);
2386                         arm->id.flag -= LIB_NEEDLINK;
2387                 }
2388                 arm= arm->id.next;
2389         }
2390 }
2391
2392 static void direct_link_bones(FileData *fd, Bone* bone)
2393 {
2394         Bone    *child;
2395
2396         bone->parent= newdataadr(fd, bone->parent);
2397         bone->prop= newdataadr(fd, bone->prop);
2398         if(bone->prop)
2399                 IDP_DirectLinkProperty(bone->prop, (fd->flags & FD_FLAGS_SWITCH_ENDIAN), fd);
2400                 
2401         bone->flag &= ~BONE_DRAW_ACTIVE;
2402
2403         link_list(fd, &bone->childbase);
2404
2405         for(child=bone->childbase.first; child; child=child->next)
2406                 direct_link_bones(fd, child);
2407 }
2408
2409 static void direct_link_armature(FileData *fd, bArmature *arm)
2410 {
2411         Bone    *bone;
2412
2413         link_list(fd, &arm->bonebase);
2414         arm->edbo= NULL;
2415         arm->sketch = NULL;
2416         
2417         arm->adt= newdataadr(fd, arm->adt);
2418         direct_link_animdata(fd, arm->adt);
2419         
2420         bone=arm->bonebase.first;
2421         while (bone) {
2422                 direct_link_bones(fd, bone);
2423                 bone=bone->next;
2424         }
2425
2426         arm->act_bone= newdataadr(fd, arm->act_bone);
2427         arm->act_edbone= NULL;
2428 }
2429
2430 /* ************ READ CAMERA ***************** */
2431
2432 static void lib_link_camera(FileData *fd, Main *main)
2433 {
2434         Camera *ca;
2435
2436         ca= main->camera.first;
2437         while(ca) {
2438                 if(ca->id.flag & LIB_NEEDLINK) {
2439                         if (ca->adt) lib_link_animdata(fd, &ca->id, ca->adt);
2440                         
2441                         ca->ipo= newlibadr_us(fd, ca->id.lib, ca->ipo); // XXX depreceated - old animation system
2442                         
2443                         ca->dof_ob= newlibadr_us(fd, ca->id.lib, ca->dof_ob);
2444                         
2445                         ca->id.flag -= LIB_NEEDLINK;
2446                 }
2447                 ca= ca->id.next;
2448         }
2449 }
2450
2451 static void direct_link_camera(FileData *fd, Camera *ca)
2452 {
2453         ca->adt= newdataadr(fd, ca->adt);
2454         direct_link_animdata(fd, ca->adt);
2455 }
2456
2457
2458 /* ************ READ LAMP ***************** */
2459
2460 static void lib_link_lamp(FileData *fd, Main *main)
2461 {
2462         Lamp *la;
2463         MTex *mtex;
2464         int a;
2465
2466         la= main->lamp.first;
2467         while(la) {
2468                 if(la->id.flag & LIB_NEEDLINK) {
2469                         if (la->adt) lib_link_animdata(fd, &la->id, la->adt);
2470                         
2471                         for(a=0; a<MAX_MTEX; a++) {
2472                                 mtex= la->mtex[a];
2473                                 if(mtex) {
2474                                         mtex->tex= newlibadr_us(fd, la->id.lib, mtex->tex);
2475                                         mtex->object= newlibadr(fd, la->id.lib, mtex->object);
2476                                 }
2477                         }
2478                         
2479                         la->ipo= newlibadr_us(fd, la->id.lib, la->ipo); // XXX depreceated - old animation system
2480                         
2481                         la->id.flag -= LIB_NEEDLINK;
2482                 }
2483                 la= la->id.next;
2484         }
2485 }
2486
2487 static void direct_link_lamp(FileData *fd, Lamp *la)
2488 {
2489         int a;
2490         
2491         la->adt= newdataadr(fd, la->adt);
2492         direct_link_animdata(fd, la->adt);
2493
2494         for(a=0; a<MAX_MTEX; a++) {
2495                 la->mtex[a]= newdataadr(fd, la->mtex[a]);
2496         }
2497         
2498         la->curfalloff= newdataadr(fd, la->curfalloff);
2499         if(la->curfalloff)
2500                 direct_link_curvemapping(fd, la->curfalloff);
2501         
2502         la->preview = direct_link_preview_image(fd, la->preview);
2503 }
2504
2505 /* ************ READ keys ***************** */
2506
2507 static void lib_link_key(FileData *fd, Main *main)
2508 {
2509         Key *key;
2510
2511         key= main->key.first;
2512         while(key) {
2513                 if(key->id.flag & LIB_NEEDLINK) {
2514                         if(key->adt) lib_link_animdata(fd, &key->id, key->adt);
2515                         
2516                         key->ipo= newlibadr_us(fd, key->id.lib, key->ipo); // XXX depreceated - old animation system
2517                         key->from= newlibadr(fd, key->id.lib, key->from);
2518
2519                         key->id.flag -= LIB_NEEDLINK;
2520                 }
2521                 key= key->id.next;
2522         }
2523 }
2524
2525 static void switch_endian_keyblock(Key *key, KeyBlock *kb)
2526 {
2527         int elemsize, a, b;
2528         char *data, *poin, *cp;
2529
2530         elemsize= key->elemsize;
2531         data= kb->data;
2532
2533         for(a=0; a<kb->totelem; a++) {
2534
2535                 cp= key->elemstr;
2536                 poin= data;
2537
2538                 while( cp[0] ) {        /* cp[0]==amount */
2539
2540                         switch(cp[1]) {         /* cp[1]= type */
2541                         case IPO_FLOAT:
2542                         case IPO_BPOINT:
2543                         case IPO_BEZTRIPLE:
2544                                 b= cp[0];
2545                                 while(b--) {
2546                                         SWITCH_INT((*poin));
2547                                         poin+= 4;
2548                                 }
2549                                 break;
2550                         }
2551
2552                         cp+= 2;
2553
2554                 }
2555                 data+= elemsize;
2556         }
2557 }
2558
2559 static void direct_link_key(FileData *fd, Key *key)
2560 {
2561         KeyBlock *kb;
2562
2563         link_list(fd, &(key->block));
2564
2565         key->adt= newdataadr(fd, key->adt);
2566         direct_link_animdata(fd, key->adt);
2567         
2568         key->refkey= newdataadr(fd, key->refkey);
2569
2570         kb= key->block.first;
2571         while(kb) {
2572
2573                 kb->data= newdataadr(fd, kb->data);
2574
2575                 if(fd->flags & FD_FLAGS_SWITCH_ENDIAN)
2576                         switch_endian_keyblock(key, kb);
2577
2578                 kb= kb->next;
2579         }
2580 }
2581
2582 /* ************ READ mball ***************** */
2583
2584 static void lib_link_mball(FileData *fd, Main *main)
2585 {
2586         MetaBall *mb;
2587         int a;
2588
2589         mb= main->mball.first;
2590         while(mb) {
2591                 if(mb->id.flag & LIB_NEEDLINK) {
2592                         if (mb->adt) lib_link_animdata(fd, &mb->id, mb->adt);
2593                         
2594                         for(a=0; a<mb->totcol; a++) mb->mat[a]= newlibadr_us(fd, mb->id.lib, mb->mat[a]);
2595
2596                         mb->ipo= newlibadr_us(fd, mb->id.lib, mb->ipo); // XXX depreceated - old animation system
2597
2598                         mb->id.flag -= LIB_NEEDLINK;
2599                 }
2600                 mb= mb->id.next;
2601         }
2602 }
2603
2604 static void direct_link_mball(FileData *fd, MetaBall *mb)
2605 {
2606         mb->adt= newdataadr(fd, mb->adt);
2607         direct_link_animdata(fd, mb->adt);
2608         
2609         mb->mat= newdataadr(fd, mb->mat);
2610         test_pointer_array(fd, (void **)&mb->mat);
2611
2612         link_list(fd, &(mb->elems));
2613
2614         mb->disp.first= mb->disp.last= NULL;
2615         mb->editelems= NULL;
2616         mb->bb= NULL;
2617 /*      mb->edit_elems.first= mb->edit_elems.last= NULL;*/
2618         mb->lastelem= NULL;
2619 }
2620
2621 /* ************ READ WORLD ***************** */
2622
2623 static void lib_link_world(FileData *fd, Main *main)
2624 {
2625         World *wrld;
2626         MTex *mtex;
2627         int a;
2628
2629         wrld= main->world.first;
2630         while(wrld) {
2631                 if(wrld->id.flag & LIB_NEEDLINK) {
2632                         if (wrld->adt) lib_link_animdata(fd, &wrld->id, wrld->adt);
2633                         
2634                         wrld->ipo= newlibadr_us(fd, wrld->id.lib, wrld->ipo); // XXX depreceated - old animation system
2635                         
2636                         for(a=0; a<MAX_MTEX; a++) {
2637                                 mtex= wrld->mtex[a];
2638                                 if(mtex) {
2639                                         mtex->tex= newlibadr_us(fd, wrld->id.lib, mtex->tex);
2640                                         mtex->object= newlibadr(fd, wrld->id.lib, mtex->object);
2641                                 }
2642                         }
2643                         
2644                         wrld->id.flag -= LIB_NEEDLINK;
2645                 }
2646                 wrld= wrld->id.next;
2647         }
2648 }
2649
2650 static void direct_link_world(FileData *fd, World *wrld)
2651 {
2652         int a;
2653
2654         wrld->adt= newdataadr(fd, wrld->adt);
2655         direct_link_animdata(fd, wrld->adt);
2656
2657         for(a=0; a<MAX_MTEX; a++) {
2658                 wrld->mtex[a]= newdataadr(fd, wrld->mtex[a]);
2659         }
2660         wrld->preview = direct_link_preview_image(fd, wrld->preview);
2661 }
2662
2663
2664 /* ************ READ VFONT ***************** */
2665
2666 static void lib_link_vfont(FileData *fd, Main *main)
2667 {
2668         VFont *vf;
2669
2670         vf= main->vfont.first;
2671         while(vf) {
2672                 if(vf->id.flag & LIB_NEEDLINK) {
2673                         vf->id.flag -= LIB_NEEDLINK;
2674                 }
2675                 vf= vf->id.next;
2676         }
2677 }
2678
2679 static void direct_link_vfont(FileData *fd, VFont *vf)
2680 {
2681         vf->data= NULL;
2682         vf->packedfile= direct_link_packedfile(fd, vf->packedfile);
2683 }
2684
2685 /* ************ READ TEXT ****************** */
2686
2687 static void lib_link_text(FileData *fd, Main *main)
2688 {
2689         Text *text;
2690
2691         text= main->text.first;
2692         while(text) {
2693                 if(text->id.flag & LIB_NEEDLINK) {
2694                         text->id.flag -= LIB_NEEDLINK;
2695                 }
2696                 text= text->id.next;
2697         }
2698 }
2699
2700 static void direct_link_text(FileData *fd, Text *text)
2701 {
2702         TextLine *ln;
2703
2704         text->name= newdataadr(fd, text->name);
2705
2706         text->undo_pos= -1;
2707         text->undo_len= TXT_INIT_UNDO;
2708         text->undo_buf= MEM_mallocN(text->undo_len, "undo buf");
2709
2710         text->compiled= NULL;
2711
2712 /*
2713         if(text->flags & TXT_ISEXT) {
2714                 reopen_text(text);
2715         } else {
2716 */
2717
2718         link_list(fd, &text->lines);
2719         link_list(fd, &text->markers);
2720
2721         text->curl= newdataadr(fd, text->curl);
2722         text->sell= newdataadr(fd, text->sell);
2723
2724         ln= text->lines.first;
2725         while(ln) {
2726                 ln->line= newdataadr(fd, ln->line);
2727                 ln->format= NULL;
2728                 
2729                 if (ln->len != (int) strlen(ln->line)) {
2730                         printf("Error loading text, line lengths differ\n");
2731                         ln->len = strlen(ln->line);
2732                 }
2733
2734                 ln= ln->next;
2735         }
2736
2737         text->flags = (text->flags) & ~TXT_ISEXT;
2738
2739         text->id.us= 1;
2740 }
2741
2742 /* ************ READ IMAGE ***************** */
2743
2744 static void lib_link_image(FileData *fd, Main *main)
2745 {
2746         Image *ima;
2747
2748         ima= main->image.first;
2749         while (ima) {
2750                 if(ima->id.flag & LIB_NEEDLINK) {
2751                         if (ima->id.properties) IDP_LibLinkProperty(ima->id.properties, (fd->flags & FD_FLAGS_SWITCH_ENDIAN), fd);
2752
2753                         ima->id.flag -= LIB_NEEDLINK;
2754                 }
2755                 ima= ima->id.next;
2756         }
2757 }
2758
2759 static void link_ibuf_list(FileData *fd, ListBase *lb)
2760 {
2761         Link *ln, *prev;
2762         
2763         if(lb->first==NULL) return;
2764         
2765         lb->first= newimaadr(fd, lb->first);
2766         ln= lb->first;
2767         prev= NULL;
2768         while(ln) {
2769                 ln->next= newimaadr(fd, ln->next);
2770                 ln->prev= prev;
2771                 prev= ln;
2772                 ln= ln->next;
2773         }
2774         lb->last= prev;
2775 }
2776
2777 static void direct_link_image(FileData *fd, Image *ima)
2778 {
2779         /* for undo system, pointers could be restored */
2780         if(fd->imamap)
2781                 link_ibuf_list(fd, &ima->ibufs);
2782         else
2783                 ima->ibufs.first= ima->ibufs.last= NULL;
2784         
2785         /* if not restored, we keep the binded opengl index */
2786         if(ima->ibufs.first==NULL) {
2787                 ima->bindcode= 0;
2788                 ima->gputexture= NULL;
2789         }
2790         
2791         ima->anim= NULL;
2792         ima->rr= NULL;
2793         ima->repbind= NULL;
2794         ima->render_text= newdataadr(fd, ima->render_text);
2795         
2796         ima->packedfile = direct_link_packedfile(fd, ima->packedfile);
2797         ima->preview = direct_link_preview_image(fd, ima->preview);
2798         ima->ok= 1;
2799 }
2800
2801
2802 /* ************ READ CURVE ***************** */
2803
2804 static void lib_link_curve(FileData *fd, Main *main)
2805 {
2806         Curve *cu;
2807         int a;
2808
2809         cu= main->curve.first;
2810         while(cu) {
2811                 if(cu->id.flag & LIB_NEEDLINK) {
2812                         if(cu->adt) lib_link_animdata(fd, &cu->id, cu->adt);
2813
2814                         for(a=0; a<cu->totcol; a++) cu->mat[a]= newlibadr_us(fd, cu->id.lib, cu->mat[a]);
2815
2816                         cu->bevobj= newlibadr(fd, cu->id.lib, cu->bevobj);
2817                         cu->taperobj= newlibadr(fd, cu->id.lib, cu->taperobj);
2818                         cu->textoncurve= newlibadr(fd, cu->id.lib, cu->textoncurve);
2819                         cu->vfont= newlibadr_us(fd, cu->id.lib, cu->vfont);
2820                         cu->vfontb= newlibadr_us(fd, cu->id.lib, cu->vfontb);                   
2821                         cu->vfonti= newlibadr_us(fd, cu->id.lib, cu->vfonti);
2822                         cu->vfontbi= newlibadr_us(fd, cu->id.lib, cu->vfontbi);
2823
2824                         cu->ipo= newlibadr_us(fd, cu->id.lib, cu->ipo); // XXX depreceated - old animation system
2825                         cu->key= newlibadr_us(fd, cu->id.lib, cu->key);
2826
2827                         cu->id.flag -= LIB_NEEDLINK;
2828                 }
2829                 cu= cu->id.next;
2830         }
2831 }
2832
2833
2834 static void switch_endian_knots(Nurb *nu)
2835 {
2836         int len;
2837
2838         if(nu->knotsu) {
2839                 len= KNOTSU(nu);
2840                 while(len--) {
2841                         SWITCH_INT(nu->knotsu[len]);
2842                 }
2843         }
2844         if(nu->knotsv) {
2845                 len= KNOTSV(nu);
2846                 while(len--) {
2847                         SWITCH_INT(nu->knotsv[len]);
2848                 }
2849         }
2850 }
2851
2852 static void direct_link_curve(FileData *fd, Curve *cu)
2853 {
2854         Nurb *nu;
2855         TextBox *tb;
2856         
2857         cu->adt= newdataadr(fd, cu->adt);
2858         direct_link_animdata(fd, cu->adt);
2859         
2860         cu->mat= newdataadr(fd, cu->mat);
2861         test_pointer_array(fd, (void **)&cu->mat);
2862         cu->str= newdataadr(fd, cu->str);
2863         cu->strinfo= newdataadr(fd, cu->strinfo);       
2864         cu->tb= newdataadr(fd, cu->tb);
2865
2866         if(cu->vfont==0) link_list(fd, &(cu->nurb));
2867         else {
2868                 cu->nurb.first=cu->nurb.last= 0;
2869
2870                 tb= MEM_callocN(MAXTEXTBOX*sizeof(TextBox), "TextBoxread");
2871                 if (cu->tb) {
2872                         memcpy(tb, cu->tb, cu->totbox*sizeof(TextBox));
2873                         MEM_freeN(cu->tb);
2874                         cu->tb= tb;                     
2875                 } else {
2876                         cu->totbox = 1;
2877                         cu->actbox = 1;
2878                         cu->tb = tb;
2879                         cu->tb[0].w = cu->linewidth;
2880                 }               
2881                 if (cu->wordspace == 0.0) cu->wordspace = 1.0;
2882         }
2883
2884         cu->bev.first=cu->bev.last= NULL;
2885         cu->disp.first=cu->disp.last= NULL;
2886         cu->editnurb= NULL;
2887         cu->lastselbp= NULL;
2888         cu->path= NULL;
2889         cu->editfont= NULL;
2890         
2891         nu= cu->nurb.first;
2892         while(nu) {
2893                 nu->bezt= newdataadr(fd, nu->bezt);
2894                 nu->bp= newdataadr(fd, nu->bp);
2895                 nu->knotsu= newdataadr(fd, nu->knotsu);
2896                 nu->knotsv= newdataadr(fd, nu->knotsv);
2897                 if (cu->vfont==0) nu->charidx= nu->mat_nr;
2898
2899                 if(fd->flags & FD_FLAGS_SWITCH_ENDIAN) {
2900                         switch_endian_knots(nu);
2901                 }
2902
2903                 nu= nu->next;
2904         }
2905         cu->bb= NULL;
2906 }
2907
2908 /* ************ READ TEX ***************** */
2909
2910 static void lib_link_texture(FileData *fd, Main *main)
2911 {
2912         Tex *tex;
2913
2914         tex= main->tex.first;
2915         while(tex) {
2916                 if(tex->id.flag & LIB_NEEDLINK) {
2917                         if(tex->adt) lib_link_animdata(fd, &tex->id, tex->adt);
2918
2919                         tex->ima= newlibadr_us(fd, tex->id.lib, tex->ima);
2920                         tex->ipo= newlibadr_us(fd, tex->id.lib, tex->ipo);
2921                         if(tex->env) tex->env->object= newlibadr(fd, tex->id.lib, tex->env->object);
2922                         if(tex->pd)
2923                                 tex->pd->object= newlibadr(fd, tex->id.lib, tex->pd->object);
2924                         if(tex->vd) tex->vd->object= newlibadr(fd, tex->id.lib, tex->vd->object);
2925
2926                         if(tex->nodetree)
2927                                 lib_link_ntree(fd, &tex->id, tex->nodetree);
2928                         
2929                         tex->id.flag -= LIB_NEEDLINK;
2930                 }
2931                 tex= tex->id.next;
2932         }
2933 }
2934
2935 static void direct_link_texture(FileData *fd, Tex *tex)
2936 {
2937         tex->adt= newdataadr(fd, tex->adt);
2938         direct_link_animdata(fd, tex->adt);
2939         
2940         tex->plugin= newdataadr(fd, tex->plugin);
2941         if(tex->plugin) {
2942                 tex->plugin->handle= 0;
2943                 open_plugin_tex(tex->plugin);
2944                 /* initialize data for this instance, if an initialization
2945                  * function exists.
2946                  */
2947                 if (tex->plugin->instance_init)
2948                         tex->plugin->instance_init((void *) tex->plugin->data);
2949         }
2950         tex->coba= newdataadr(fd, tex->coba);
2951         tex->env= newdataadr(fd, tex->env);
2952         if(tex->env) {
2953                 tex->env->ima= NULL;
2954                 memset(tex->env->cube, 0, 6*sizeof(void *));
2955                 tex->env->ok= 0;
2956         }
2957         tex->pd= newdataadr(fd, tex->pd);
2958         if(tex->pd) {
2959                 tex->pd->point_tree = NULL;
2960                 tex->pd->coba= newdataadr(fd, tex->pd->coba);
2961         }
2962         
2963         tex->vd= newdataadr(fd, tex->vd);
2964         if(tex->vd) {
2965                 tex->vd->dataset = NULL;
2966         }
2967         
2968         tex->nodetree= newdataadr(fd, tex->nodetree);
2969         if(tex->nodetree)
2970                 direct_link_nodetree(fd, tex->nodetree);
2971         
2972         tex->preview = direct_link_preview_image(fd, tex->preview);
2973
2974         tex->iuser.ok= 1;
2975 }
2976
2977
2978
2979 /* ************ READ MATERIAL ***************** */
2980
2981 static void lib_link_material(FileData *fd, Main *main)
2982 {
2983         Material *ma;
2984         MTex *mtex;
2985         int a;
2986
2987         ma= main->mat.first;
2988         while(ma) {
2989                 if(ma->id.flag & LIB_NEEDLINK) {
2990                         if(ma->adt) lib_link_animdata(fd, &ma->id, ma->adt);
2991
2992                         /*Link ID Properties -- and copy this comment EXACTLY for easy finding
2993                         of library blocks that implement this.*/
2994                         if (ma->id.properties) IDP_LibLinkProperty(ma->id.properties, (fd->flags & FD_FLAGS_SWITCH_ENDIAN), fd);
2995
2996                         ma->ipo= newlibadr_us(fd, ma->id.lib, ma->ipo);
2997                         ma->group= newlibadr_us(fd, ma->id.lib, ma->group);
2998                         
2999                         for(a=0; a<MAX_MTEX; a++) {
3000                                 mtex= ma->mtex[a];
3001                                 if(mtex) {
3002                                         mtex->tex= newlibadr_us(fd, ma->id.lib, mtex->tex);
3003                                         mtex->object= newlibadr(fd, ma->id.lib, mtex->object);
3004                                 }
3005                         }
3006                         
3007                         if(ma->nodetree)
3008                                 lib_link_ntree(fd, &ma->id, ma->nodetree);
3009                         
3010                         ma->id.flag -= LIB_NEEDLINK;
3011                 }
3012                 ma= ma->id.next;
3013         }
3014 }
3015
3016 static void direct_link_material(FileData *fd, Material *ma)
3017 {
3018         int a;
3019
3020         ma->adt= newdataadr(fd, ma->adt);
3021         direct_link_animdata(fd, ma->adt);
3022         
3023         for(a=0; a<MAX_MTEX; a++) {
3024                 ma->mtex[a]= newdataadr(fd, ma->mtex[a]);
3025         }
3026
3027         ma->ramp_col= newdataadr(fd, ma->ramp_col);
3028         ma->ramp_spec= newdataadr(fd, ma->ramp_spec);
3029         
3030         ma->nodetree= newdataadr(fd, ma->nodetree);
3031         if(ma->nodetree)
3032                 direct_link_nodetree(fd, ma->nodetree);
3033
3034         ma->preview = direct_link_preview_image(fd, ma->preview);
3035         ma->gpumaterial.first = ma->gpumaterial.last = NULL;
3036 }
3037
3038 /* ************ READ PARTICLE SETTINGS ***************** */
3039
3040 static void direct_link_pointcache(FileData *fd, PointCache *cache)
3041 {
3042         if((cache->flag & PTCACHE_DISK_CACHE)==0) {
3043                 PTCacheMem *pm;
3044                 int i;
3045
3046                 link_list(fd, &cache->mem_cache);
3047
3048                 pm = cache->mem_cache.first;
3049
3050                 for(; pm; pm=pm->next) {
3051                         if(pm->index_array)
3052                                 pm->index_array = newdataadr(fd, pm->index_array);
3053                         
3054                         for(i=0; i<BPHYS_TOT_DATA; i++) {
3055                                 if(pm->data[i] && pm->data_types & (1<<i))
3056                                         pm->data[i] = newdataadr(fd, pm->data[i]);
3057                         }
3058                 }
3059         }
3060         else
3061                 cache->mem_cache.first = cache->mem_cache.last = NULL;
3062
3063         cache->flag &= ~PTCACHE_SIMULATION_VALID;
3064         cache->simframe= 0;
3065         cache->edit= NULL;
3066         cache->free_edit= NULL;
3067 }
3068
3069 static void direct_link_pointcache_list(FileData *fd, ListBase *ptcaches, PointCache **ocache)
3070 {
3071         PointCache *cache;
3072
3073         if(ptcaches->first) {
3074                 link_list(fd, ptcaches);
3075                 for(cache=ptcaches->first; cache; cache=cache->next)
3076                         direct_link_pointcache(fd, cache);
3077
3078                 *ocache = newdataadr(fd, *ocache);
3079         }
3080         else if(*ocache) {
3081                 /* old "single" caches need to be linked too */
3082                 *ocache = newdataadr(fd, *ocache);
3083                 direct_link_pointcache(fd, *ocache);
3084
3085                 ptcaches->first = ptcaches->last = *ocache;
3086         }
3087 }
3088
3089 void lib_link_partdeflect(FileData *fd, ID *id, PartDeflect *pd)
3090 {
3091         if(pd && pd->tex)
3092                 pd->tex=newlibadr_us(fd, id->lib, pd->tex);
3093 }
3094
3095 static void lib_link_particlesettings(FileData *fd, Main *main)
3096 {
3097         ParticleSettings *part;
3098         ParticleDupliWeight *dw;
3099
3100         part= main->particle.first;
3101         while(part) {
3102                 if(part->id.flag & LIB_NEEDLINK) {
3103                         if (part->adt) lib_link_animdata(fd, &part->id, part->adt);
3104                         part->ipo= newlibadr_us(fd, part->id.lib, part->ipo); // XXX depreceated - old animation system
3105                         
3106                         part->dup_ob = newlibadr(fd, part->id.lib, part->dup_ob);
3107                         part->dup_group = newlibadr(fd, part->id.lib, part->dup_group);
3108                         part->eff_group = newlibadr(fd, part->id.lib, part->eff_group);
3109                         part->bb_ob = newlibadr(fd, part->id.lib, part->bb_ob);
3110
3111                         lib_link_partdeflect(fd, &part->id, part->pd);
3112                         lib_link_partdeflect(fd, &part->id, part->pd2);
3113
3114                         if(part->effector_weights)
3115                                 part->effector_weights->group = newlibadr(fd, part->id.lib, part->effector_weights->group);
3116
3117                         dw = part->dupliweights.first;
3118                         for(; dw; dw=dw->next)
3119                                 dw->ob = newlibadr(fd, part->id.lib, dw->ob);
3120
3121                         if(part->boids) {
3122                                 BoidState *state = part->boids->states.first;
3123                                 BoidRule *rule;
3124                                 for(; state; state=state->next) {
3125                                         rule = state->rules.first;
3126                                 for(; rule; rule=rule->next)
3127                                         switch(rule->type) {
3128                                                 case eBoidRuleType_Goal:
3129                                                 case eBoidRuleType_Avoid:
3130                                                 {
3131                                                         BoidRuleGoalAvoid *brga = (BoidRuleGoalAvoid*)rule;
3132                                                         brga->ob = newlibadr(fd, part->id.lib, brga->ob);
3133                                                         break;
3134                                                 }
3135                                                 case eBoidRuleType_FollowLeader:
3136                                                 {
3137                                                         BoidRuleFollowLeader *brfl = (BoidRuleFollowLeader*)rule;
3138                                                         brfl->ob = newlibadr(fd, part->id.lib, brfl->ob);
3139                                                         break;
3140                                                 }
3141                                         }
3142                                 }
3143                         }
3144                         part->id.flag -= LIB_NEEDLINK;
3145                 }
3146                 part= part->id.next;
3147         }
3148 }
3149
3150 static void direct_link_partdeflect(PartDeflect *pd)
3151 {
3152         if(pd) pd->rng=NULL;
3153 }
3154
3155 static void direct_link_particlesettings(FileData *fd, ParticleSettings *part)
3156 {
3157         part->adt= newdataadr(fd, part->adt);
3158         part->pd= newdataadr(fd, part->pd);
3159         part->pd2= newdataadr(fd, part->pd2);
3160
3161         direct_link_partdeflect(part->pd);
3162         direct_link_partdeflect(part->pd2);
3163
3164         part->effector_weights = newdataadr(fd, part->effector_weights);
3165         if(!part->effector_weights)
3166                 part->effector_weights = BKE_add_effector_weights(part->eff_group);
3167
3168         link_list(fd, &part->dupliweights);
3169
3170         part->boids= newdataadr(fd, part->boids);
3171
3172         if(part->boids) {
3173                 BoidState *state;
3174                 link_list(fd, &part->boids->states);
3175                 
3176                 for(state=part->boids->states.first; state; state=state->next) {
3177                         link_list(fd, &state->rules);
3178                         link_list(fd, &state->conditions);
3179                         link_list(fd, &state->actions);
3180                 }
3181         }
3182 }
3183
3184 static void lib_link_particlesystems(FileData *fd, Object *ob, ID *id, ListBase *particles)
3185 {
3186         ParticleSystem *psys, *psysnext;
3187
3188         for(psys=particles->first; psys; psys=psysnext){
3189                 psysnext= psys->next;
3190                 
3191                 psys->part = newlibadr_us(fd, id->lib, psys->part);
3192                 if(psys->part) {
3193                         ParticleTarget *pt = psys->targets.first;
3194
3195                         for(; pt; pt=pt->next)
3196                                 pt->ob=newlibadr(fd, id->lib, pt->ob);
3197
3198                         psys->target_ob = newlibadr(fd, id->lib, psys->target_ob);
3199                 }
3200                 else {
3201                         /* particle modifier must be removed before particle system */
3202                         ParticleSystemModifierData *psmd= psys_get_modifier(ob,psys);
3203                         BLI_remlink(&ob->modifiers, psmd);
3204                         modifier_free((ModifierData *)psmd);
3205
3206                         BLI_remlink(particles, psys);
3207                         MEM_freeN(psys);
3208                 }
3209         }
3210 }
3211 static void direct_link_particlesystems(FileData *fd, ListBase *particles)
3212 {
3213         ParticleSystem *psys;
3214         ParticleData *pa;
3215         int a;
3216
3217         for(psys=particles->first; psys; psys=psys->next) {
3218                 psys->particles=newdataadr(fd,psys->particles);
3219                 
3220                 if(psys->particles && psys->particles->hair){
3221                         for(a=0,pa=psys->particles; a<psys->totpart; a++, pa++)
3222                                 pa->hair=newdataadr(fd,pa->hair);
3223                 }
3224                 
3225                 if(psys->particles && psys->particles->keys){
3226                         for(a=0,pa=psys->particles; a<psys->totpart; a++, pa++) {
3227                                 pa->keys= NULL;
3228                                 pa->totkey= 0;
3229                         }
3230
3231                         psys->flag &= ~PSYS_KEYED;
3232                 }
3233
3234                 if(psys->particles && psys->particles->boid) {
3235                         pa = psys->particles;
3236                         pa->boid = newdataadr(fd, pa->boid);
3237                         for(a=1,pa++; a<psys->totpart; a++, pa++)
3238                                 pa->boid = (pa-1)->boid + 1;
3239                 }
3240                 else {
3241                         for(a=0,pa=psys->particles; a<psys->totpart; a++, pa++)
3242                                 pa->boid = NULL;
3243                 }
3244
3245
3246                 psys->child = newdataadr(fd,psys->child);
3247                 psys->effectors = NULL;
3248
3249                 link_list(fd, &psys->targets);
3250
3251                 psys->edit = NULL;
3252                 psys->free_edit = NULL;
3253                 psys->pathcache = NULL;
3254                 psys->childcache = NULL;
3255                 psys->pathcachebufs.first = psys->pathcachebufs.last = NULL;
3256                 psys->childcachebufs.first = psys->childcachebufs.last = NULL;
3257                 psys->frand = NULL;
3258                 psys->pdd = NULL;
3259
3260                 direct_link_pointcache_list(fd, &psys->ptcaches, &psys->pointcache);
3261
3262                 if(psys->clmd) {
3263                         psys->clmd = newdataadr(fd, psys->clmd);
3264                         psys->clmd->clothObject = NULL;
3265                         
3266                         psys->clmd->sim_parms= newdataadr(fd, psys->clmd->sim_parms);
3267                         psys->clmd->coll_parms= newdataadr(fd, psys->clmd->coll_parms);
3268                         
3269                         if(psys->clm