write mesh selection history to the blend file. without this active edge/vert are...
[blender.git] / source / blender / blenloader / intern / writefile.c
1 /*
2  * ***** BEGIN GPL LICENSE BLOCK *****
3  *
4  * This program is free software; you can redistribute it and/or
5  * modify it under the terms of the GNU General Public License
6  * as published by the Free Software Foundation; either version 2
7  * of the License, or (at your option) any later version.
8  *
9  * This program is distributed in the hope that it will be useful,
10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
12  * GNU General Public License for more details.
13  *
14  * You should have received a copy of the GNU General Public License
15  * along with this program; if not, write to the Free Software Foundation,
16  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
17  *
18  * The Original Code is Copyright (C) 2001-2002 by NaN Holding BV.
19  * All rights reserved.
20  *
21  *
22  * Contributor(s): Blender Foundation
23  *
24  * ***** END GPL LICENSE BLOCK *****
25  */
26
27 /** \file blender/blenloader/intern/writefile.c
28  *  \ingroup blenloader
29  */
30
31
32 /*
33 FILEFORMAT: IFF-style structure  (but not IFF compatible!)
34
35 start file:
36         BLENDER_V100    12 bytes  (versie 1.00)
37                                         V = big endian, v = little endian
38                                         _ = 4 byte pointer, - = 8 byte pointer
39
40 datablocks:             also see struct BHead
41         <bh.code>                       4 chars
42         <bh.len>                        int,  len data after BHead
43         <bh.old>                        void,  old pointer
44         <bh.SDNAnr>                     int
45         <bh.nr>                         int, in case of array: amount of structs
46         data
47         ...
48         ...
49
50 Almost all data in Blender are structures. Each struct saved
51 gets a BHead header.  With BHead the struct can be linked again
52 and compared with StructDNA .
53
54 WRITE
55
56 Preferred writing order: (not really a must, but why would you do it random?)
57 Any case: direct data is ALWAYS after the lib block
58
59 (Local file data)
60 - for each LibBlock
61         - write LibBlock
62         - write associated direct data
63 (External file data)
64 - per library
65         - write library block
66         - per LibBlock
67                 - write the ID of LibBlock
68 - write TEST (128x128, blend file preview, optional)
69 - write FileGlobal (some global vars)
70 - write SDNA
71 - write USER if filename is ~/X.XX/config/startup.blend
72 */
73
74
75 #include <math.h>
76 #include <fcntl.h>
77 #include <stdio.h>
78 #include <string.h>
79 #include <stdlib.h>
80
81 #include "zlib.h"
82
83 #ifndef WIN32
84 #include <unistd.h>
85 #else
86 #include "winsock2.h"
87 #include <io.h>
88 #include <process.h> // for getpid
89 #include "BLI_winstuff.h"
90 #endif
91
92 /* allow writefile to use deprecated functionality (for forward compatibility code) */
93 #define DNA_DEPRECATED_ALLOW
94
95 #include "DNA_anim_types.h"
96 #include "DNA_armature_types.h"
97 #include "DNA_actuator_types.h"
98 #include "DNA_brush_types.h"
99 #include "DNA_camera_types.h"
100 #include "DNA_cloth_types.h"
101 #include "DNA_constraint_types.h"
102 #include "DNA_controller_types.h"
103 #include "DNA_dynamicpaint_types.h"
104 #include "DNA_genfile.h"
105 #include "DNA_group_types.h"
106 #include "DNA_gpencil_types.h"
107 #include "DNA_fileglobal_types.h"
108 #include "DNA_key_types.h"
109 #include "DNA_lattice_types.h"
110 #include "DNA_lamp_types.h"
111 #include "DNA_meta_types.h"
112 #include "DNA_mesh_types.h"
113 #include "DNA_meshdata_types.h"
114 #include "DNA_material_types.h"
115 #include "DNA_node_types.h"
116 #include "DNA_object_types.h"
117 #include "DNA_object_force.h"
118 #include "DNA_packedFile_types.h"
119 #include "DNA_particle_types.h"
120 #include "DNA_property_types.h"
121 #include "DNA_scene_types.h"
122 #include "DNA_sdna_types.h"
123 #include "DNA_sequence_types.h"
124 #include "DNA_sensor_types.h"
125 #include "DNA_smoke_types.h"
126 #include "DNA_space_types.h"
127 #include "DNA_screen_types.h"
128 #include "DNA_speaker_types.h"
129 #include "DNA_sound_types.h"
130 #include "DNA_text_types.h"
131 #include "DNA_view3d_types.h"
132 #include "DNA_vfont_types.h"
133 #include "DNA_world_types.h"
134 #include "DNA_windowmanager_types.h"
135 #include "DNA_movieclip_types.h"
136
137 #include "MEM_guardedalloc.h" // MEM_freeN
138 #include "BLI_bitmap.h"
139 #include "BLI_blenlib.h"
140 #include "BLI_linklist.h"
141 #include "BLI_bpath.h"
142 #include "BLI_math.h"
143 #include "BLI_utildefines.h"
144
145 #include "BKE_action.h"
146 #include "BKE_blender.h"
147 #include "BKE_curve.h"
148 #include "BKE_constraint.h"
149 #include "BKE_global.h" // for G
150 #include "BKE_library.h" // for  set_listbasepointers
151 #include "BKE_main.h"
152 #include "BKE_node.h"
153 #include "BKE_report.h"
154 #include "BKE_sequencer.h"
155 #include "BKE_utildefines.h"
156 #include "BKE_modifier.h"
157 #include "BKE_fcurve.h"
158 #include "BKE_pointcache.h"
159 #include "BKE_mesh.h"
160
161 #include "BLO_writefile.h"
162 #include "BLO_readfile.h"
163 #include "BLO_undofile.h"
164
165 #include "readfile.h"
166
167 #include <errno.h>
168
169 /* ********* my write, buffered writing with minimum size chunks ************ */
170
171 #define MYWRITE_BUFFER_SIZE     100000
172 #define MYWRITE_MAX_CHUNK       32768
173
174 typedef struct {
175         struct SDNA *sdna;
176
177         int file;
178         unsigned char *buf;
179         MemFile *compare, *current;
180         
181         int tot, count, error, memsize;
182
183 #ifdef USE_BMESH_SAVE_AS_COMPAT
184         char use_mesh_compat; /* option to save with older mesh format */
185 #endif
186 } WriteData;
187
188 static WriteData *writedata_new(int file)
189 {
190         WriteData *wd= MEM_callocN(sizeof(*wd), "writedata");
191
192                 /* XXX, see note about this in readfile.c, remove
193                  * once we have an xp lock - zr
194                  */
195
196         if (wd == NULL) return NULL;
197
198         wd->sdna= DNA_sdna_from_data(DNAstr, DNAlen, 0);
199
200         wd->file= file;
201
202         wd->buf= MEM_mallocN(MYWRITE_BUFFER_SIZE, "wd->buf");
203
204         return wd;
205 }
206
207 static void writedata_do_write(WriteData *wd, void *mem, int memlen)
208 {
209         if ((wd == NULL) || wd->error || (mem == NULL) || memlen < 1) return;
210         if (wd->error) return;
211
212         /* memory based save */
213         if (wd->current) {
214                 add_memfilechunk(NULL, wd->current, mem, memlen);
215         }
216         else {
217                 if (write(wd->file, mem, memlen) != memlen)
218                         wd->error= 1;
219                 
220         }
221 }
222
223 static void writedata_free(WriteData *wd)
224 {
225         DNA_sdna_free(wd->sdna);
226
227         MEM_freeN(wd->buf);
228         MEM_freeN(wd);
229 }
230
231 /***/
232
233 /**
234  * Low level WRITE(2) wrapper that buffers data
235  * \param adr Pointer to new chunk of data
236  * \param len Length of new chunk of data
237  * \warning Talks to other functions with global parameters
238  */
239  
240 #define MYWRITE_FLUSH           NULL
241
242 static void mywrite( WriteData *wd, void *adr, int len)
243 {
244         if (wd->error) return;
245
246         /* flush helps compression for undo-save */
247         if (adr==MYWRITE_FLUSH) {
248                 if (wd->count) {
249                         writedata_do_write(wd, wd->buf, wd->count);
250                         wd->count= 0;
251                 }
252                 return;
253         }
254
255         wd->tot+= len;
256         
257         /* if we have a single big chunk, write existing data in
258          * buffer and write out big chunk in smaller pieces */
259         if (len>MYWRITE_MAX_CHUNK) {
260                 if (wd->count) {
261                         writedata_do_write(wd, wd->buf, wd->count);
262                         wd->count= 0;
263                 }
264
265                 do {
266                         int writelen= MIN2(len, MYWRITE_MAX_CHUNK);
267                         writedata_do_write(wd, adr, writelen);
268                         adr = (char*)adr + writelen;
269                         len -= writelen;
270                 } while (len > 0);
271
272                 return;
273         }
274
275         /* if data would overflow buffer, write out the buffer */
276         if (len+wd->count>MYWRITE_BUFFER_SIZE-1) {
277                 writedata_do_write(wd, wd->buf, wd->count);
278                 wd->count= 0;
279         }
280
281         /* append data at end of buffer */
282         memcpy(&wd->buf[wd->count], adr, len);
283         wd->count+= len;
284 }
285
286 /**
287  * BeGiN initializer for mywrite
288  * \param file File descriptor
289  * \param compare Previous memory file (can be NULL).
290  * \param current The current memory file (can be NULL).
291  * \warning Talks to other functions with global parameters
292  */
293 static WriteData *bgnwrite(int file, MemFile *compare, MemFile *current)
294 {
295         WriteData *wd= writedata_new(file);
296
297         if (wd == NULL) return NULL;
298
299         wd->compare= compare;
300         wd->current= current;
301         /* this inits comparing */
302         add_memfilechunk(compare, NULL, NULL, 0);
303         
304         return wd;
305 }
306
307 /**
308  * END the mywrite wrapper
309  * \return 1 if write failed
310  * \return unknown global variable otherwise
311  * \warning Talks to other functions with global parameters
312  */
313 static int endwrite(WriteData *wd)
314 {
315         int err;
316
317         if (wd->count) {
318                 writedata_do_write(wd, wd->buf, wd->count);
319                 wd->count= 0;
320         }
321         
322         err= wd->error;
323         writedata_free(wd);
324
325         return err;
326 }
327
328 /* ********** WRITE FILE ****************** */
329
330 static void writestruct(WriteData *wd, int filecode, const char *structname, int nr, void *adr)
331 {
332         BHead bh;
333         short *sp;
334
335         if (adr==NULL || nr==0) return;
336
337         /* init BHead */
338         bh.code= filecode;
339         bh.old= adr;
340         bh.nr= nr;
341
342         bh.SDNAnr= DNA_struct_find_nr(wd->sdna, structname);
343         if (bh.SDNAnr== -1) {
344                 printf("error: can't find SDNA code <%s>\n", structname);
345                 return;
346         }
347         sp= wd->sdna->structs[bh.SDNAnr];
348
349         bh.len= nr*wd->sdna->typelens[sp[0]];
350
351         if (bh.len==0) return;
352
353         mywrite(wd, &bh, sizeof(BHead));
354         mywrite(wd, adr, bh.len);
355 }
356
357 static void writedata(WriteData *wd, int filecode, int len, void *adr)  /* do not use for structs */
358 {
359         BHead bh;
360
361         if (adr==NULL) return;
362         if (len==0) return;
363
364         len+= 3;
365         len-= ( len % 4);
366
367         /* init BHead */
368         bh.code= filecode;
369         bh.old= adr;
370         bh.nr= 1;
371         bh.SDNAnr= 0;
372         bh.len= len;
373
374         mywrite(wd, &bh, sizeof(BHead));
375         if (len) mywrite(wd, adr, len);
376 }
377
378 /* *************** writing some direct data structs used in more code parts **************** */
379 /*These functions are used by blender's .blend system for file saving/loading.*/
380 void IDP_WriteProperty_OnlyData(IDProperty *prop, void *wd);
381 void IDP_WriteProperty(IDProperty *prop, void *wd);
382
383 static void IDP_WriteArray(IDProperty *prop, void *wd)
384 {
385         /*REMEMBER to set totalen to len in the linking code!!*/
386         if (prop->data.pointer) {
387                 writedata(wd, DATA, MEM_allocN_len(prop->data.pointer), prop->data.pointer);
388
389                 if (prop->subtype == IDP_GROUP) {
390                         IDProperty **array= prop->data.pointer;
391                         int a;
392
393                         for (a=0; a<prop->len; a++)
394                                 IDP_WriteProperty(array[a], wd);
395                 }
396         }
397 }
398
399 static void IDP_WriteIDPArray(IDProperty *prop, void *wd)
400 {
401         /*REMEMBER to set totalen to len in the linking code!!*/
402         if (prop->data.pointer) {
403                 IDProperty *array = prop->data.pointer;
404                 int a;
405
406                 writestruct(wd, DATA, "IDProperty", prop->len, array);
407
408                 for (a=0; a<prop->len; a++)
409                         IDP_WriteProperty_OnlyData(&array[a], wd);
410         }
411 }
412
413 static void IDP_WriteString(IDProperty *prop, void *wd)
414 {
415         /*REMEMBER to set totalen to len in the linking code!!*/
416         writedata(wd, DATA, prop->len+1, prop->data.pointer);
417 }
418
419 static void IDP_WriteGroup(IDProperty *prop, void *wd)
420 {
421         IDProperty *loop;
422
423         for (loop=prop->data.group.first; loop; loop=loop->next) {
424                 IDP_WriteProperty(loop, wd);
425         }
426 }
427
428 /* Functions to read/write ID Properties */
429 void IDP_WriteProperty_OnlyData(IDProperty *prop, void *wd)
430 {
431         switch (prop->type) {
432                 case IDP_GROUP:
433                         IDP_WriteGroup(prop, wd);
434                         break;
435                 case IDP_STRING:
436                         IDP_WriteString(prop, wd);
437                         break;
438                 case IDP_ARRAY:
439                         IDP_WriteArray(prop, wd);
440                         break;
441                 case IDP_IDPARRAY:
442                         IDP_WriteIDPArray(prop, wd);
443                         break;
444         }
445 }
446
447 void IDP_WriteProperty(IDProperty *prop, void *wd)
448 {
449         writestruct(wd, DATA, "IDProperty", 1, prop);
450         IDP_WriteProperty_OnlyData(prop, wd);
451 }
452
453 static void write_fmodifiers(WriteData *wd, ListBase *fmodifiers)
454 {
455         FModifier *fcm;
456         
457         /* Modifiers */
458         for (fcm= fmodifiers->first; fcm; fcm= fcm->next) {
459                 FModifierTypeInfo *fmi= fmodifier_get_typeinfo(fcm);
460                 
461                 /* Write the specific data */
462                 if (fmi && fcm->data) {
463                         /* firstly, just write the plain fmi->data struct */
464                         writestruct(wd, DATA, fmi->structName, 1, fcm->data);
465                         
466                         /* do any modifier specific stuff */
467                         switch (fcm->type) {
468                                 case FMODIFIER_TYPE_GENERATOR:
469                                 {
470                                         FMod_Generator *data= (FMod_Generator *)fcm->data;
471                                         
472                                         /* write coefficients array */
473                                         if (data->coefficients)
474                                                 writedata(wd, DATA, sizeof(float)*(data->arraysize), data->coefficients);
475                                 }
476                                         break;
477                                 case FMODIFIER_TYPE_ENVELOPE:
478                                 {
479                                         FMod_Envelope *data= (FMod_Envelope *)fcm->data;
480                                         
481                                         /* write envelope data */
482                                         if (data->data)
483                                                 writestruct(wd, DATA, "FCM_EnvelopeData", data->totvert, data->data);
484                                 }
485                                         break;
486                                 case FMODIFIER_TYPE_PYTHON:
487                                 {
488                                         FMod_Python *data = (FMod_Python *)fcm->data;
489                                         
490                                         /* Write ID Properties -- and copy this comment EXACTLY for easy finding
491                                          of library blocks that implement this.*/
492                                         IDP_WriteProperty(data->prop, wd);
493                                 }
494                                         break;
495                         }
496                 }
497                 
498                 /* Write the modifier */
499                 writestruct(wd, DATA, "FModifier", 1, fcm);
500         }
501 }
502
503 static void write_fcurves(WriteData *wd, ListBase *fcurves)
504 {
505         FCurve *fcu;
506         
507         for (fcu=fcurves->first; fcu; fcu=fcu->next) {
508                 /* F-Curve */
509                 writestruct(wd, DATA, "FCurve", 1, fcu);
510                 
511                 /* curve data */
512                 if (fcu->bezt)          
513                         writestruct(wd, DATA, "BezTriple", fcu->totvert, fcu->bezt);
514                 if (fcu->fpt)
515                         writestruct(wd, DATA, "FPoint", fcu->totvert, fcu->fpt);
516                         
517                 if (fcu->rna_path)
518                         writedata(wd, DATA, strlen(fcu->rna_path)+1, fcu->rna_path);
519                 
520                 /* driver data */
521                 if (fcu->driver) {
522                         ChannelDriver *driver= fcu->driver;
523                         DriverVar *dvar;
524                         
525                         writestruct(wd, DATA, "ChannelDriver", 1, driver);
526                         
527                         /* variables */
528                         for (dvar= driver->variables.first; dvar; dvar= dvar->next) {
529                                 writestruct(wd, DATA, "DriverVar", 1, dvar);
530                                 
531                                 DRIVER_TARGETS_USED_LOOPER(dvar)
532                                 {
533                                         if (dtar->rna_path)
534                                                 writedata(wd, DATA, strlen(dtar->rna_path)+1, dtar->rna_path);
535                                 }
536                                 DRIVER_TARGETS_LOOPER_END
537                         }
538                 }
539                 
540                 /* write F-Modifiers */
541                 write_fmodifiers(wd, &fcu->modifiers);
542         }
543 }
544
545 static void write_actions(WriteData *wd, ListBase *idbase)
546 {
547         bAction *act;
548         bActionGroup *grp;
549         TimeMarker *marker;
550         
551         for (act=idbase->first; act; act= act->id.next) {
552                 if (act->id.us>0 || wd->current) {
553                         writestruct(wd, ID_AC, "bAction", 1, act);
554                         if (act->id.properties) IDP_WriteProperty(act->id.properties, wd);
555                         
556                         write_fcurves(wd, &act->curves);
557                         
558                         for (grp=act->groups.first; grp; grp=grp->next) {
559                                 writestruct(wd, DATA, "bActionGroup", 1, grp);
560                         }
561                         
562                         for (marker=act->markers.first; marker; marker=marker->next) {
563                                 writestruct(wd, DATA, "TimeMarker", 1, marker);
564                         }
565                 }
566         }
567         
568         /* flush helps the compression for undo-save */
569         mywrite(wd, MYWRITE_FLUSH, 0);
570 }
571
572 static void write_keyingsets(WriteData *wd, ListBase *list)
573 {
574         KeyingSet *ks;
575         KS_Path *ksp;
576         
577         for (ks= list->first; ks; ks= ks->next) {
578                 /* KeyingSet */
579                 writestruct(wd, DATA, "KeyingSet", 1, ks);
580                 
581                 /* Paths */
582                 for (ksp= ks->paths.first; ksp; ksp= ksp->next) {
583                         /* Path */
584                         writestruct(wd, DATA, "KS_Path", 1, ksp);
585                         
586                         if (ksp->rna_path)
587                                 writedata(wd, DATA, strlen(ksp->rna_path)+1, ksp->rna_path);
588                 }
589         }
590 }
591
592 static void write_nlastrips(WriteData *wd, ListBase *strips)
593 {
594         NlaStrip *strip;
595         
596         for (strip= strips->first; strip; strip= strip->next) {
597                 /* write the strip first */
598                 writestruct(wd, DATA, "NlaStrip", 1, strip);
599                 
600                 /* write the strip's F-Curves and modifiers */
601                 write_fcurves(wd, &strip->fcurves);
602                 write_fmodifiers(wd, &strip->modifiers);
603                 
604                 /* write the strip's children */
605                 write_nlastrips(wd, &strip->strips);
606         }
607 }
608
609 static void write_nladata(WriteData *wd, ListBase *nlabase)
610 {
611         NlaTrack *nlt;
612         
613         /* write all the tracks */
614         for (nlt= nlabase->first; nlt; nlt= nlt->next) {
615                 /* write the track first */
616                 writestruct(wd, DATA, "NlaTrack", 1, nlt);
617                 
618                 /* write the track's strips */
619                 write_nlastrips(wd, &nlt->strips);
620         }
621 }
622
623 static void write_animdata(WriteData *wd, AnimData *adt)
624 {
625         AnimOverride *aor;
626         
627         /* firstly, just write the AnimData block */
628         writestruct(wd, DATA, "AnimData", 1, adt);
629         
630         /* write drivers */
631         write_fcurves(wd, &adt->drivers);
632         
633         /* write overrides */
634         // FIXME: are these needed?
635         for (aor= adt->overrides.first; aor; aor= aor->next) {
636                 /* overrides consist of base data + rna_path */
637                 writestruct(wd, DATA, "AnimOverride", 1, aor);
638                 writedata(wd, DATA, strlen(aor->rna_path)+1, aor->rna_path);
639         }
640         
641         // TODO write the remaps (if they are needed)
642         
643         /* write NLA data */
644         write_nladata(wd, &adt->nla_tracks);
645 }
646
647 static void write_curvemapping(WriteData *wd, CurveMapping *cumap)
648 {
649         int a;
650         
651         writestruct(wd, DATA, "CurveMapping", 1, cumap);
652         for (a=0; a<CM_TOT; a++)
653                 writestruct(wd, DATA, "CurveMapPoint", cumap->cm[a].totpoint, cumap->cm[a].curve);
654 }
655
656 static void write_node_socket(WriteData *wd, bNodeSocket *sock)
657 {
658         bNodeSocketType *stype= ntreeGetSocketType(sock->type);
659
660         /* forward compatibility code, so older blenders still open */
661         sock->stack_type = 1;
662         
663         if (sock->default_value) {
664                 bNodeSocketValueFloat *valfloat;
665                 bNodeSocketValueVector *valvector;
666                 bNodeSocketValueRGBA *valrgba;
667                 
668                 switch (sock->type) {
669                 case SOCK_FLOAT:
670                         valfloat = sock->default_value;
671                         sock->ns.vec[0] = valfloat->value;
672                         sock->ns.min = valfloat->min;
673                         sock->ns.max = valfloat->max;
674                         break;
675                 case SOCK_VECTOR:
676                         valvector = sock->default_value;
677                         copy_v3_v3(sock->ns.vec, valvector->value);
678                         sock->ns.min = valvector->min;
679                         sock->ns.max = valvector->max;
680                         break;
681                 case SOCK_RGBA:
682                         valrgba = sock->default_value;
683                         copy_v4_v4(sock->ns.vec, valrgba->value);
684                         sock->ns.min = 0.0f;
685                         sock->ns.max = 1.0f;
686                         break;
687                 }
688         }
689
690         /* actual socket writing */
691         writestruct(wd, DATA, "bNodeSocket", 1, sock);
692         if (sock->default_value)
693                 writestruct(wd, DATA, stype->value_structname, 1, sock->default_value);
694 }
695
696 /* this is only direct data, tree itself should have been written */
697 static void write_nodetree(WriteData *wd, bNodeTree *ntree)
698 {
699         bNode *node;
700         bNodeSocket *sock;
701         bNodeLink *link;
702         
703         /* for link_list() speed, we write per list */
704         
705         if (ntree->adt) write_animdata(wd, ntree->adt);
706         
707         for (node= ntree->nodes.first; node; node= node->next)
708                 writestruct(wd, DATA, "bNode", 1, node);
709
710         for (node= ntree->nodes.first; node; node= node->next) {
711                 for (sock= node->inputs.first; sock; sock= sock->next)
712                         write_node_socket(wd, sock);
713                 for (sock= node->outputs.first; sock; sock= sock->next)
714                         write_node_socket(wd, sock);
715
716                 
717                 if (node->storage && node->type!=NODE_DYNAMIC) {
718                         /* could be handlerized at some point, now only 1 exception still */
719                         if (ntree->type==NTREE_SHADER && (node->type==SH_NODE_CURVE_VEC || node->type==SH_NODE_CURVE_RGB))
720                                 write_curvemapping(wd, node->storage);
721                         else if (ntree->type==NTREE_COMPOSIT && ELEM4(node->type, CMP_NODE_TIME, CMP_NODE_CURVE_VEC, CMP_NODE_CURVE_RGB, CMP_NODE_HUECORRECT))
722                                 write_curvemapping(wd, node->storage);
723                         else if (ntree->type==NTREE_TEXTURE && (node->type==TEX_NODE_CURVE_RGB || node->type==TEX_NODE_CURVE_TIME) )
724                                 write_curvemapping(wd, node->storage);
725                         else if (ntree->type==NTREE_COMPOSIT && node->type==CMP_NODE_MOVIEDISTORTION)
726                                 /* pass */;
727                         else
728                                 writestruct(wd, DATA, node->typeinfo->storagename, 1, node->storage);
729                 }
730                 
731                 if (node->type==CMP_NODE_OUTPUT_FILE) {
732                         /* inputs have own storage data */
733                         for (sock=node->inputs.first; sock; sock=sock->next)
734                                 writestruct(wd, DATA, "NodeImageMultiFileSocket", 1, sock->storage);
735                 }
736         }
737         
738         for (link= ntree->links.first; link; link= link->next)
739                 writestruct(wd, DATA, "bNodeLink", 1, link);
740         
741         /* external sockets */
742         for (sock= ntree->inputs.first; sock; sock= sock->next)
743                 write_node_socket(wd, sock);
744         for (sock= ntree->outputs.first; sock; sock= sock->next)
745                 write_node_socket(wd, sock);
746 }
747
748 static void current_screen_compat(Main *mainvar, bScreen **screen)
749 {
750         wmWindowManager *wm;
751         wmWindow *window;
752
753         /* find a global current screen in the first open window, to have
754          * a reasonable default for reading in older versions */
755         wm= mainvar->wm.first;
756         window= (wm)? wm->windows.first: NULL;
757         *screen= (window)? window->screen: NULL;
758 }
759
760 static void write_renderinfo(WriteData *wd, Main *mainvar)              /* for renderdeamon */
761 {
762         bScreen *curscreen;
763         Scene *sce;
764         int data[8];
765
766         /* XXX in future, handle multiple windows with multiple screnes? */
767         current_screen_compat(mainvar, &curscreen);
768
769         for (sce= mainvar->scene.first; sce; sce= sce->id.next) {
770                 if (sce->id.lib==NULL  && ( sce==curscreen->scene || (sce->r.scemode & R_BG_RENDER)) ) {
771                         data[0]= sce->r.sfra;
772                         data[1]= sce->r.efra;
773
774                         memset(data+2, 0, sizeof(int)*6);
775                         BLI_strncpy((char *)(data+2), sce->id.name+2, sizeof(sce->id.name)-2);
776
777                         writedata(wd, REND, 32, data);
778                 }
779         }
780 }
781
782 static void write_keymapitem(WriteData *wd, wmKeyMapItem *kmi)
783 {
784         writestruct(wd, DATA, "wmKeyMapItem", 1, kmi);
785         if (kmi->properties)
786                 IDP_WriteProperty(kmi->properties, wd);
787 }
788
789 static void write_userdef(WriteData *wd)
790 {
791         bTheme *btheme;
792         wmKeyMap *keymap;
793         wmKeyMapItem *kmi;
794         wmKeyMapDiffItem *kmdi;
795         bAddon *bext;
796         uiStyle *style;
797         
798         writestruct(wd, USER, "UserDef", 1, &U);
799
800         for (btheme= U.themes.first; btheme; btheme=btheme->next)
801                 writestruct(wd, DATA, "bTheme", 1, btheme);
802
803         for (keymap= U.user_keymaps.first; keymap; keymap=keymap->next) {
804                 writestruct(wd, DATA, "wmKeyMap", 1, keymap);
805
806                 for (kmdi=keymap->diff_items.first; kmdi; kmdi=kmdi->next) {
807                         writestruct(wd, DATA, "wmKeyMapDiffItem", 1, kmdi);
808                         if (kmdi->remove_item)
809                                 write_keymapitem(wd, kmdi->remove_item);
810                         if (kmdi->add_item)
811                                 write_keymapitem(wd, kmdi->add_item);
812                 }
813
814                 for (kmi=keymap->items.first; kmi; kmi=kmi->next)
815                         write_keymapitem(wd, kmi);
816         }
817
818         for (bext= U.addons.first; bext; bext=bext->next)
819                 writestruct(wd, DATA, "bAddon", 1, bext);
820         
821         for (style= U.uistyles.first; style; style= style->next) {
822                 writestruct(wd, DATA, "uiStyle", 1, style);
823         }
824 }
825
826 static void write_boid_state(WriteData *wd, BoidState *state)
827 {
828         BoidRule *rule = state->rules.first;
829         //BoidCondition *cond = state->conditions.first;
830
831         writestruct(wd, DATA, "BoidState", 1, state);
832
833         for (; rule; rule=rule->next) {
834                 switch(rule->type) {
835                         case eBoidRuleType_Goal:
836                         case eBoidRuleType_Avoid:
837                                 writestruct(wd, DATA, "BoidRuleGoalAvoid", 1, rule);
838                                 break;
839                         case eBoidRuleType_AvoidCollision:
840                                 writestruct(wd, DATA, "BoidRuleAvoidCollision", 1, rule);
841                                 break;
842                         case eBoidRuleType_FollowLeader:
843                                 writestruct(wd, DATA, "BoidRuleFollowLeader", 1, rule);
844                                 break;
845                         case eBoidRuleType_AverageSpeed:
846                                 writestruct(wd, DATA, "BoidRuleAverageSpeed", 1, rule);
847                                 break;
848                         case eBoidRuleType_Fight:
849                                 writestruct(wd, DATA, "BoidRuleFight", 1, rule);
850                                 break;
851                         default:
852                                 writestruct(wd, DATA, "BoidRule", 1, rule);
853                                 break;
854                 }
855         }
856         //for (; cond; cond=cond->next)
857         //      writestruct(wd, DATA, "BoidCondition", 1, cond);
858 }
859
860 /* update this also to readfile.c */
861 static const char *ptcache_data_struct[] = {
862         "", // BPHYS_DATA_INDEX
863         "", // BPHYS_DATA_LOCATION
864         "", // BPHYS_DATA_VELOCITY
865         "", // BPHYS_DATA_ROTATION
866         "", // BPHYS_DATA_AVELOCITY / BPHYS_DATA_XCONST */
867         "", // BPHYS_DATA_SIZE:
868         "", // BPHYS_DATA_TIMES:        
869         "BoidData" // case BPHYS_DATA_BOIDS:
870 };
871 static const char *ptcache_extra_struct[] = {
872         "",
873         "ParticleSpring"
874 };
875 static void write_pointcaches(WriteData *wd, ListBase *ptcaches)
876 {
877         PointCache *cache = ptcaches->first;
878         int i;
879
880         for (; cache; cache=cache->next) {
881                 writestruct(wd, DATA, "PointCache", 1, cache);
882
883                 if ((cache->flag & PTCACHE_DISK_CACHE)==0) {
884                         PTCacheMem *pm = cache->mem_cache.first;
885
886                         for (; pm; pm=pm->next) {
887                                 PTCacheExtra *extra = pm->extradata.first;
888
889                                 writestruct(wd, DATA, "PTCacheMem", 1, pm);
890                                 
891                                 for (i=0; i<BPHYS_TOT_DATA; i++) {
892                                         if (pm->data[i] && pm->data_types & (1<<i)) {
893                                                 if (ptcache_data_struct[i][0]=='\0')
894                                                         writedata(wd, DATA, MEM_allocN_len(pm->data[i]), pm->data[i]);
895                                                 else
896                                                         writestruct(wd, DATA, ptcache_data_struct[i], pm->totpoint, pm->data[i]);
897                                         }
898                                 }
899
900                                 for (; extra; extra=extra->next) {
901                                         if (ptcache_extra_struct[extra->type][0]=='\0')
902                                                 continue;
903                                         writestruct(wd, DATA, "PTCacheExtra", 1, extra);
904                                         writestruct(wd, DATA, ptcache_extra_struct[extra->type], extra->totdata, extra->data);
905                                 }
906                         }
907                 }
908         }
909 }
910 static void write_particlesettings(WriteData *wd, ListBase *idbase)
911 {
912         ParticleSettings *part;
913         ParticleDupliWeight *dw;
914         GroupObject *go;
915         int a;
916
917         part= idbase->first;
918         while (part) {
919                 if (part->id.us>0 || wd->current) {
920                         /* write LibData */
921                         writestruct(wd, ID_PA, "ParticleSettings", 1, part);
922                         if (part->id.properties) IDP_WriteProperty(part->id.properties, wd);
923                         if (part->adt) write_animdata(wd, part->adt);
924                         writestruct(wd, DATA, "PartDeflect", 1, part->pd);
925                         writestruct(wd, DATA, "PartDeflect", 1, part->pd2);
926                         writestruct(wd, DATA, "EffectorWeights", 1, part->effector_weights);
927
928                         dw = part->dupliweights.first;
929                         for (; dw; dw=dw->next) {
930                                 /* update indices */
931                                 dw->index = 0;
932                                 if (part->dup_group) { /* can be NULL if lining fails or set to None */
933                                         go = part->dup_group->gobject.first;
934                                         while (go && go->ob != dw->ob) {
935                                                 go=go->next;
936                                                 dw->index++;
937                                         }
938                                 }
939                                 writestruct(wd, DATA, "ParticleDupliWeight", 1, dw);
940                         }
941
942                         if (part->boids && part->phystype == PART_PHYS_BOIDS) {
943                                 BoidState *state = part->boids->states.first;
944
945                                 writestruct(wd, DATA, "BoidSettings", 1, part->boids);
946
947                                 for (; state; state=state->next)
948                                         write_boid_state(wd, state);
949                         }
950                         if (part->fluid && part->phystype == PART_PHYS_FLUID) {
951                                 writestruct(wd, DATA, "SPHFluidSettings", 1, part->fluid); 
952                         }
953
954                         for (a=0; a<MAX_MTEX; a++) {
955                                 if (part->mtex[a]) writestruct(wd, DATA, "MTex", 1, part->mtex[a]);
956                         }
957                 }
958                 part= part->id.next;
959         }
960 }
961 static void write_particlesystems(WriteData *wd, ListBase *particles)
962 {
963         ParticleSystem *psys= particles->first;
964         ParticleTarget *pt;
965         int a;
966
967         for (; psys; psys=psys->next) {
968                 writestruct(wd, DATA, "ParticleSystem", 1, psys);
969
970                 if (psys->particles) {
971                         writestruct(wd, DATA, "ParticleData", psys->totpart ,psys->particles);
972
973                         if (psys->particles->hair) {
974                                 ParticleData *pa = psys->particles;
975
976                                 for (a=0; a<psys->totpart; a++, pa++)
977                                         writestruct(wd, DATA, "HairKey", pa->totkey, pa->hair);
978                         }
979
980                         if (psys->particles->boid && psys->part->phystype == PART_PHYS_BOIDS)
981                                 writestruct(wd, DATA, "BoidParticle", psys->totpart, psys->particles->boid);
982
983                         if (psys->part->fluid && psys->part->phystype == PART_PHYS_FLUID && (psys->part->fluid->flag & SPH_VISCOELASTIC_SPRINGS))
984                                 writestruct(wd, DATA, "ParticleSpring", psys->tot_fluidsprings, psys->fluid_springs);
985                 }
986                 pt = psys->targets.first;
987                 for (; pt; pt=pt->next)
988                         writestruct(wd, DATA, "ParticleTarget", 1, pt);
989
990                 if (psys->child) writestruct(wd, DATA, "ChildParticle", psys->totchild ,psys->child);
991
992                 if (psys->clmd) {
993                         writestruct(wd, DATA, "ClothModifierData", 1, psys->clmd);
994                         writestruct(wd, DATA, "ClothSimSettings", 1, psys->clmd->sim_parms);
995                         writestruct(wd, DATA, "ClothCollSettings", 1, psys->clmd->coll_parms);
996                 }
997
998                 write_pointcaches(wd, &psys->ptcaches);
999         }
1000 }
1001
1002 static void write_properties(WriteData *wd, ListBase *lb)
1003 {
1004         bProperty *prop;
1005
1006         prop= lb->first;
1007         while (prop) {
1008                 writestruct(wd, DATA, "bProperty", 1, prop);
1009
1010                 if (prop->poin && prop->poin != &prop->data)
1011                         writedata(wd, DATA, MEM_allocN_len(prop->poin), prop->poin);
1012
1013                 prop= prop->next;
1014         }
1015 }
1016
1017 static void write_sensors(WriteData *wd, ListBase *lb)
1018 {
1019         bSensor *sens;
1020
1021         sens= lb->first;
1022         while (sens) {
1023                 writestruct(wd, DATA, "bSensor", 1, sens);
1024
1025                 writedata(wd, DATA, sizeof(void *)*sens->totlinks, sens->links);
1026
1027                 switch(sens->type) {
1028                 case SENS_NEAR:
1029                         writestruct(wd, DATA, "bNearSensor", 1, sens->data);
1030                         break;
1031                 case SENS_MOUSE:
1032                         writestruct(wd, DATA, "bMouseSensor", 1, sens->data);
1033                         break;
1034                 case SENS_TOUCH:
1035                         writestruct(wd, DATA, "bTouchSensor", 1, sens->data);
1036                         break;
1037                 case SENS_KEYBOARD:
1038                         writestruct(wd, DATA, "bKeyboardSensor", 1, sens->data);
1039                         break;
1040                 case SENS_PROPERTY:
1041                         writestruct(wd, DATA, "bPropertySensor", 1, sens->data);
1042                         break;
1043                 case SENS_ARMATURE:
1044                         writestruct(wd, DATA, "bArmatureSensor", 1, sens->data);
1045                         break;
1046                 case SENS_ACTUATOR:
1047                         writestruct(wd, DATA, "bActuatorSensor", 1, sens->data);
1048                         break;
1049                 case SENS_DELAY:
1050                         writestruct(wd, DATA, "bDelaySensor", 1, sens->data);
1051                         break;
1052                 case SENS_COLLISION:
1053                         writestruct(wd, DATA, "bCollisionSensor", 1, sens->data);
1054                         break;
1055                 case SENS_RADAR:
1056                         writestruct(wd, DATA, "bRadarSensor", 1, sens->data);
1057                         break;
1058                 case SENS_RANDOM:
1059                         writestruct(wd, DATA, "bRandomSensor", 1, sens->data);
1060                         break;
1061                 case SENS_RAY:
1062                         writestruct(wd, DATA, "bRaySensor", 1, sens->data);
1063                         break;
1064                 case SENS_MESSAGE:
1065                         writestruct(wd, DATA, "bMessageSensor", 1, sens->data);
1066                         break;
1067                 case SENS_JOYSTICK:
1068                         writestruct(wd, DATA, "bJoystickSensor", 1, sens->data);
1069                         break;
1070                 default:
1071                         ; /* error: don't know how to write this file */
1072                 }
1073
1074                 sens= sens->next;
1075         }
1076 }
1077
1078 static void write_controllers(WriteData *wd, ListBase *lb)
1079 {
1080         bController *cont;
1081
1082         cont= lb->first;
1083         while (cont) {
1084                 writestruct(wd, DATA, "bController", 1, cont);
1085
1086                 writedata(wd, DATA, sizeof(void *)*cont->totlinks, cont->links);
1087
1088                 switch(cont->type) {
1089                 case CONT_EXPRESSION:
1090                         writestruct(wd, DATA, "bExpressionCont", 1, cont->data);
1091                         break;
1092                 case CONT_PYTHON:
1093                         writestruct(wd, DATA, "bPythonCont", 1, cont->data);
1094                         break;
1095                 default:
1096                         ; /* error: don't know how to write this file */
1097                 }
1098
1099                 cont= cont->next;
1100         }
1101 }
1102
1103 static void write_actuators(WriteData *wd, ListBase *lb)
1104 {
1105         bActuator *act;
1106
1107         act= lb->first;
1108         while (act) {
1109                 writestruct(wd, DATA, "bActuator", 1, act);
1110
1111                 switch(act->type) {
1112                 case ACT_ACTION:
1113                 case ACT_SHAPEACTION:
1114                         writestruct(wd, DATA, "bActionActuator", 1, act->data);
1115                         break;
1116                 case ACT_SOUND:
1117                         writestruct(wd, DATA, "bSoundActuator", 1, act->data);
1118                         break;
1119                 case ACT_OBJECT:
1120                         writestruct(wd, DATA, "bObjectActuator", 1, act->data);
1121                         break;
1122                 case ACT_IPO:
1123                         writestruct(wd, DATA, "bIpoActuator", 1, act->data);
1124                         break;
1125                 case ACT_PROPERTY:
1126                         writestruct(wd, DATA, "bPropertyActuator", 1, act->data);
1127                         break;
1128                 case ACT_CAMERA:
1129                         writestruct(wd, DATA, "bCameraActuator", 1, act->data);
1130                         break;
1131                 case ACT_CONSTRAINT:
1132                         writestruct(wd, DATA, "bConstraintActuator", 1, act->data);
1133                         break;
1134                 case ACT_EDIT_OBJECT:
1135                         writestruct(wd, DATA, "bEditObjectActuator", 1, act->data);
1136                         break;
1137                 case ACT_SCENE:
1138                         writestruct(wd, DATA, "bSceneActuator", 1, act->data);
1139                         break;
1140                 case ACT_GROUP:
1141                         writestruct(wd, DATA, "bGroupActuator", 1, act->data);
1142                         break;
1143                 case ACT_RANDOM:
1144                         writestruct(wd, DATA, "bRandomActuator", 1, act->data);
1145                         break;
1146                 case ACT_MESSAGE:
1147                         writestruct(wd, DATA, "bMessageActuator", 1, act->data);
1148                         break;
1149                 case ACT_GAME:
1150                         writestruct(wd, DATA, "bGameActuator", 1, act->data);
1151                         break;
1152                 case ACT_VISIBILITY:
1153                         writestruct(wd, DATA, "bVisibilityActuator", 1, act->data);
1154                         break;
1155                 case ACT_2DFILTER:
1156                         writestruct(wd, DATA, "bTwoDFilterActuator", 1, act->data);
1157                         break;
1158                 case ACT_PARENT:
1159                         writestruct(wd, DATA, "bParentActuator", 1, act->data);
1160                         break;
1161                 case ACT_STATE:
1162                         writestruct(wd, DATA, "bStateActuator", 1, act->data);
1163                         break;
1164                 case ACT_ARMATURE:
1165                         writestruct(wd, DATA, "bArmatureActuator", 1, act->data);
1166                         break;
1167                 case ACT_STEERING:
1168                         writestruct(wd, DATA, "bSteeringActuator", 1, act->data);
1169                         break;
1170                 default:
1171                         ; /* error: don't know how to write this file */
1172                 }
1173
1174                 act= act->next;
1175         }
1176 }
1177
1178 static void write_motionpath(WriteData *wd, bMotionPath *mpath)
1179 {
1180         /* sanity checks */
1181         if (mpath == NULL)
1182                 return;
1183         
1184         /* firstly, just write the motionpath struct */
1185         writestruct(wd, DATA, "bMotionPath", 1, mpath);
1186         
1187         /* now write the array of data */
1188         writestruct(wd, DATA, "bMotionPathVert", mpath->length, mpath->points);
1189 }
1190
1191 static void write_constraints(WriteData *wd, ListBase *conlist)
1192 {
1193         bConstraint *con;
1194
1195         for (con=conlist->first; con; con=con->next) {
1196                 bConstraintTypeInfo *cti= constraint_get_typeinfo(con);
1197                 
1198                 /* Write the specific data */
1199                 if (cti && con->data) {
1200                         /* firstly, just write the plain con->data struct */
1201                         writestruct(wd, DATA, cti->structName, 1, con->data);
1202                         
1203                         /* do any constraint specific stuff */
1204                         switch (con->type) {
1205                                 case CONSTRAINT_TYPE_PYTHON:
1206                                 {
1207                                         bPythonConstraint *data = (bPythonConstraint *)con->data;
1208                                         bConstraintTarget *ct;
1209                                         
1210                                         /* write targets */
1211                                         for (ct= data->targets.first; ct; ct= ct->next)
1212                                                 writestruct(wd, DATA, "bConstraintTarget", 1, ct);
1213                                         
1214                                         /* Write ID Properties -- and copy this comment EXACTLY for easy finding
1215                                          of library blocks that implement this.*/
1216                                         IDP_WriteProperty(data->prop, wd);
1217                                 }
1218                                         break;
1219                                 case CONSTRAINT_TYPE_SPLINEIK: 
1220                                 {
1221                                         bSplineIKConstraint *data= (bSplineIKConstraint*)con->data;
1222                                         
1223                                         /* write points array */
1224                                         writedata(wd, DATA, sizeof(float)*(data->numpoints), data->points);
1225                                 }
1226                                         break;
1227                         }
1228                 }
1229                 
1230                 /* Write the constraint */
1231                 writestruct(wd, DATA, "bConstraint", 1, con);
1232         }
1233 }
1234
1235 static void write_pose(WriteData *wd, bPose *pose)
1236 {
1237         bPoseChannel *chan;
1238         bActionGroup *grp;
1239
1240         /* Write each channel */
1241         if (!pose)
1242                 return;
1243
1244         /* Write channels */
1245         for (chan=pose->chanbase.first; chan; chan=chan->next) {
1246                 /* Write ID Properties -- and copy this comment EXACTLY for easy finding
1247                  of library blocks that implement this.*/
1248                 if (chan->prop)
1249                         IDP_WriteProperty(chan->prop, wd);
1250                 
1251                 write_constraints(wd, &chan->constraints);
1252                 
1253                 write_motionpath(wd, chan->mpath);
1254                 
1255                 /* prevent crashes with autosave, when a bone duplicated in editmode has not yet been assigned to its posechannel */
1256                 if (chan->bone) 
1257                         chan->selectflag= chan->bone->flag & BONE_SELECTED; /* gets restored on read, for library armatures */
1258                 
1259                 writestruct(wd, DATA, "bPoseChannel", 1, chan);
1260         }
1261         
1262         /* Write groups */
1263         for (grp=pose->agroups.first; grp; grp=grp->next) 
1264                 writestruct(wd, DATA, "bActionGroup", 1, grp);
1265
1266         /* write IK param */
1267         if (pose->ikparam) {
1268                 char *structname = (char *)get_ikparam_name(pose);
1269                 if (structname)
1270                         writestruct(wd, DATA, structname, 1, pose->ikparam);
1271         }
1272
1273         /* Write this pose */
1274         writestruct(wd, DATA, "bPose", 1, pose);
1275
1276 }
1277
1278 static void write_defgroups(WriteData *wd, ListBase *defbase)
1279 {
1280         bDeformGroup    *defgroup;
1281
1282         for (defgroup=defbase->first; defgroup; defgroup=defgroup->next)
1283                 writestruct(wd, DATA, "bDeformGroup", 1, defgroup);
1284 }
1285
1286 static void write_modifiers(WriteData *wd, ListBase *modbase)
1287 {
1288         ModifierData *md;
1289
1290         if (modbase == NULL) return;
1291         for (md=modbase->first; md; md= md->next) {
1292                 ModifierTypeInfo *mti = modifierType_getInfo(md->type);
1293                 if (mti == NULL) return;
1294                 
1295                 writestruct(wd, DATA, mti->structName, 1, md);
1296                         
1297                 if (md->type==eModifierType_Hook) {
1298                         HookModifierData *hmd = (HookModifierData*) md;
1299                         
1300                         writedata(wd, DATA, sizeof(int)*hmd->totindex, hmd->indexar);
1301                 }
1302                 else if (md->type==eModifierType_Cloth) {
1303                         ClothModifierData *clmd = (ClothModifierData*) md;
1304                         
1305                         writestruct(wd, DATA, "ClothSimSettings", 1, clmd->sim_parms);
1306                         writestruct(wd, DATA, "ClothCollSettings", 1, clmd->coll_parms);
1307                         writestruct(wd, DATA, "EffectorWeights", 1, clmd->sim_parms->effector_weights);
1308                         write_pointcaches(wd, &clmd->ptcaches);
1309                 } 
1310                 else if (md->type==eModifierType_Smoke) {
1311                         SmokeModifierData *smd = (SmokeModifierData*) md;
1312                         
1313                         if (smd->type & MOD_SMOKE_TYPE_DOMAIN)
1314                         {
1315                                 if (smd->domain)
1316                                 {
1317                                         write_pointcaches(wd, &(smd->domain->ptcaches[0]));
1318
1319                                         /* create fake pointcache so that old blender versions can read it */
1320                                         smd->domain->point_cache[1] = BKE_ptcache_add(&smd->domain->ptcaches[1]);
1321                                         smd->domain->point_cache[1]->flag |= PTCACHE_DISK_CACHE|PTCACHE_FAKE_SMOKE;
1322                                         smd->domain->point_cache[1]->step = 1;
1323
1324                                         write_pointcaches(wd, &(smd->domain->ptcaches[1]));
1325                                 }
1326                                 
1327                                 writestruct(wd, DATA, "SmokeDomainSettings", 1, smd->domain);
1328
1329                                 if (smd->domain) {
1330                                         /* cleanup the fake pointcache */
1331                                         BKE_ptcache_free_list(&smd->domain->ptcaches[1]);
1332                                         smd->domain->point_cache[1] = NULL;
1333                                         
1334                                         writestruct(wd, DATA, "EffectorWeights", 1, smd->domain->effector_weights);
1335                                 }
1336                         }
1337                         else if (smd->type & MOD_SMOKE_TYPE_FLOW)
1338                                 writestruct(wd, DATA, "SmokeFlowSettings", 1, smd->flow);
1339                         else if (smd->type & MOD_SMOKE_TYPE_COLL)
1340                                 writestruct(wd, DATA, "SmokeCollSettings", 1, smd->coll);
1341                 } 
1342                 else if (md->type==eModifierType_Fluidsim) {
1343                         FluidsimModifierData *fluidmd = (FluidsimModifierData*) md;
1344                         
1345                         writestruct(wd, DATA, "FluidsimSettings", 1, fluidmd->fss);
1346                 }
1347                 else if (md->type==eModifierType_DynamicPaint) {
1348                         DynamicPaintModifierData *pmd = (DynamicPaintModifierData*) md;
1349                         
1350                         if (pmd->canvas)
1351                         {
1352                                 DynamicPaintSurface *surface;
1353                                 writestruct(wd, DATA, "DynamicPaintCanvasSettings", 1, pmd->canvas);
1354                                 
1355                                 /* write surfaces */
1356                                 for (surface=pmd->canvas->surfaces.first; surface; surface=surface->next)
1357                                         writestruct(wd, DATA, "DynamicPaintSurface", 1, surface);
1358                                 /* write caches and effector weights */
1359                                 for (surface=pmd->canvas->surfaces.first; surface; surface=surface->next) {
1360                                         write_pointcaches(wd, &(surface->ptcaches));
1361
1362                                         writestruct(wd, DATA, "EffectorWeights", 1, surface->effector_weights);
1363                                 }
1364                         }
1365                         if (pmd->brush)
1366                         {
1367                                 writestruct(wd, DATA, "DynamicPaintBrushSettings", 1, pmd->brush);
1368                                 writestruct(wd, DATA, "ColorBand", 1, pmd->brush->paint_ramp);
1369                                 writestruct(wd, DATA, "ColorBand", 1, pmd->brush->vel_ramp);
1370                         }
1371                 } 
1372                 else if (md->type==eModifierType_Collision) {
1373                         
1374                         /*
1375                         CollisionModifierData *collmd = (CollisionModifierData*) md;
1376                         // TODO: CollisionModifier should use pointcache 
1377                         // + have proper reset events before enabling this
1378                         writestruct(wd, DATA, "MVert", collmd->numverts, collmd->x);
1379                         writestruct(wd, DATA, "MVert", collmd->numverts, collmd->xnew);
1380                         writestruct(wd, DATA, "MFace", collmd->numfaces, collmd->mfaces);
1381                         */
1382                 }
1383                 else if (md->type==eModifierType_MeshDeform) {
1384                         MeshDeformModifierData *mmd = (MeshDeformModifierData*) md;
1385                         int size = mmd->dyngridsize;
1386
1387                         writestruct(wd, DATA, "MDefInfluence", mmd->totinfluence, mmd->bindinfluences);
1388                         writedata(wd, DATA, sizeof(int)*(mmd->totvert+1), mmd->bindoffsets);
1389                         writedata(wd, DATA, sizeof(float)*3*mmd->totcagevert,
1390                                 mmd->bindcagecos);
1391                         writestruct(wd, DATA, "MDefCell", size*size*size, mmd->dyngrid);
1392                         writestruct(wd, DATA, "MDefInfluence", mmd->totinfluence, mmd->dyninfluences);
1393                         writedata(wd, DATA, sizeof(int)*mmd->totvert, mmd->dynverts);
1394                 }
1395                 else if (md->type==eModifierType_Warp) {
1396                         WarpModifierData *tmd = (WarpModifierData*) md;
1397                         if (tmd->curfalloff) {
1398                                 write_curvemapping(wd, tmd->curfalloff);
1399                         }
1400                 }
1401                 else if (md->type==eModifierType_WeightVGEdit) {
1402                         WeightVGEditModifierData *wmd = (WeightVGEditModifierData*) md;
1403
1404                         if (wmd->cmap_curve)
1405                                 write_curvemapping(wd, wmd->cmap_curve);
1406                 }
1407         }
1408 }
1409
1410 static void write_objects(WriteData *wd, ListBase *idbase)
1411 {
1412         Object *ob;
1413         
1414         ob= idbase->first;
1415         while (ob) {
1416                 if (ob->id.us>0 || wd->current) {
1417                         /* write LibData */
1418                         writestruct(wd, ID_OB, "Object", 1, ob);
1419                         
1420                         /*Write ID Properties -- and copy this comment EXACTLY for easy finding
1421                           of library blocks that implement this.*/
1422                         if (ob->id.properties) IDP_WriteProperty(ob->id.properties, wd);
1423                         
1424                         if (ob->adt) write_animdata(wd, ob->adt);
1425                         
1426                         /* direct data */
1427                         writedata(wd, DATA, sizeof(void *)*ob->totcol, ob->mat);
1428                         writedata(wd, DATA, sizeof(char)*ob->totcol, ob->matbits);
1429                         /* write_effects(wd, &ob->effect); */ /* not used anymore */
1430                         write_properties(wd, &ob->prop);
1431                         write_sensors(wd, &ob->sensors);
1432                         write_controllers(wd, &ob->controllers);
1433                         write_actuators(wd, &ob->actuators);
1434
1435                         if (ob->type == OB_ARMATURE) {
1436                                 bArmature *arm = ob->data;
1437                                 if (arm && ob->pose && arm->act_bone) {
1438                                         BLI_strncpy(ob->pose->proxy_act_bone, arm->act_bone->name, sizeof(ob->pose->proxy_act_bone));
1439                                 }
1440                         }
1441
1442                         write_pose(wd, ob->pose);
1443                         write_defgroups(wd, &ob->defbase);
1444                         write_constraints(wd, &ob->constraints);
1445                         write_motionpath(wd, ob->mpath);
1446                         
1447                         writestruct(wd, DATA, "PartDeflect", 1, ob->pd);
1448                         writestruct(wd, DATA, "SoftBody", 1, ob->soft);
1449                         if (ob->soft) {
1450                                 write_pointcaches(wd, &ob->soft->ptcaches);
1451                                 writestruct(wd, DATA, "EffectorWeights", 1, ob->soft->effector_weights);
1452                         }
1453                         writestruct(wd, DATA, "BulletSoftBody", 1, ob->bsoft);
1454                         
1455                         write_particlesystems(wd, &ob->particlesystem);
1456                         write_modifiers(wd, &ob->modifiers);
1457                 }
1458                 ob= ob->id.next;
1459         }
1460
1461         /* flush helps the compression for undo-save */
1462         mywrite(wd, MYWRITE_FLUSH, 0);
1463 }
1464
1465
1466 static void write_vfonts(WriteData *wd, ListBase *idbase)
1467 {
1468         VFont *vf;
1469         PackedFile * pf;
1470
1471         vf= idbase->first;
1472         while (vf) {
1473                 if (vf->id.us>0 || wd->current) {
1474                         /* write LibData */
1475                         writestruct(wd, ID_VF, "VFont", 1, vf);
1476                         if (vf->id.properties) IDP_WriteProperty(vf->id.properties, wd);
1477
1478                         /* direct data */
1479
1480                         if (vf->packedfile) {
1481                                 pf = vf->packedfile;
1482                                 writestruct(wd, DATA, "PackedFile", 1, pf);
1483                                 writedata(wd, DATA, pf->size, pf->data);
1484                         }
1485                 }
1486
1487                 vf= vf->id.next;
1488         }
1489 }
1490
1491
1492 static void write_keys(WriteData *wd, ListBase *idbase)
1493 {
1494         Key *key;
1495         KeyBlock *kb;
1496
1497         key= idbase->first;
1498         while (key) {
1499                 if (key->id.us>0 || wd->current) {
1500                         /* write LibData */
1501                         writestruct(wd, ID_KE, "Key", 1, key);
1502                         if (key->id.properties) IDP_WriteProperty(key->id.properties, wd);
1503                         
1504                         if (key->adt) write_animdata(wd, key->adt);
1505                         
1506                         /* direct data */
1507                         kb= key->block.first;
1508                         while (kb) {
1509                                 writestruct(wd, DATA, "KeyBlock", 1, kb);
1510                                 if (kb->data) writedata(wd, DATA, kb->totelem*key->elemsize, kb->data);
1511                                 kb= kb->next;
1512                         }
1513                 }
1514
1515                 key= key->id.next;
1516         }
1517         /* flush helps the compression for undo-save */
1518         mywrite(wd, MYWRITE_FLUSH, 0);
1519 }
1520
1521 static void write_cameras(WriteData *wd, ListBase *idbase)
1522 {
1523         Camera *cam;
1524
1525         cam= idbase->first;
1526         while (cam) {
1527                 if (cam->id.us>0 || wd->current) {
1528                         /* write LibData */
1529                         writestruct(wd, ID_CA, "Camera", 1, cam);
1530                         if (cam->id.properties) IDP_WriteProperty(cam->id.properties, wd);
1531                         
1532                         if (cam->adt) write_animdata(wd, cam->adt);
1533                 }
1534
1535                 cam= cam->id.next;
1536         }
1537 }
1538
1539 static void write_mballs(WriteData *wd, ListBase *idbase)
1540 {
1541         MetaBall *mb;
1542         MetaElem *ml;
1543
1544         mb= idbase->first;
1545         while (mb) {
1546                 if (mb->id.us>0 || wd->current) {
1547                         /* write LibData */
1548                         writestruct(wd, ID_MB, "MetaBall", 1, mb);
1549                         if (mb->id.properties) IDP_WriteProperty(mb->id.properties, wd);
1550
1551                         /* direct data */
1552                         writedata(wd, DATA, sizeof(void *)*mb->totcol, mb->mat);
1553                         if (mb->adt) write_animdata(wd, mb->adt);
1554
1555                         ml= mb->elems.first;
1556                         while (ml) {
1557                                 writestruct(wd, DATA, "MetaElem", 1, ml);
1558                                 ml= ml->next;
1559                         }
1560                 }
1561                 mb= mb->id.next;
1562         }
1563 }
1564
1565 static int amount_of_chars(char *str)
1566 {
1567         // Since the data is saved as UTF-8 to the cu->str
1568         // The cu->len is not same as the strlen(cu->str)
1569         return strlen(str);
1570 }
1571
1572 static void write_curves(WriteData *wd, ListBase *idbase)
1573 {
1574         Curve *cu;
1575         Nurb *nu;
1576
1577         cu= idbase->first;
1578         while (cu) {
1579                 if (cu->id.us>0 || wd->current) {
1580                         /* write LibData */
1581                         writestruct(wd, ID_CU, "Curve", 1, cu);
1582                         
1583                         /* direct data */
1584                         writedata(wd, DATA, sizeof(void *)*cu->totcol, cu->mat);
1585                         if (cu->id.properties) IDP_WriteProperty(cu->id.properties, wd);
1586                         if (cu->adt) write_animdata(wd, cu->adt);
1587                         
1588                         if (cu->vfont) {
1589                                 writedata(wd, DATA, amount_of_chars(cu->str)+1, cu->str);
1590                                 writestruct(wd, DATA, "CharInfo", cu->len+1, cu->strinfo);
1591                                 writestruct(wd, DATA, "TextBox", cu->totbox, cu->tb);                           
1592                         }
1593                         else {
1594                                 /* is also the order of reading */
1595                                 nu= cu->nurb.first;
1596                                 while (nu) {
1597                                         writestruct(wd, DATA, "Nurb", 1, nu);
1598                                         nu= nu->next;
1599                                 }
1600                                 nu= cu->nurb.first;
1601                                 while (nu) {
1602                                         if (nu->type == CU_BEZIER)
1603                                                 writestruct(wd, DATA, "BezTriple", nu->pntsu, nu->bezt);
1604                                         else {
1605                                                 writestruct(wd, DATA, "BPoint", nu->pntsu*nu->pntsv, nu->bp);
1606                                                 if (nu->knotsu) writedata(wd, DATA, KNOTSU(nu)*sizeof(float), nu->knotsu);
1607                                                 if (nu->knotsv) writedata(wd, DATA, KNOTSV(nu)*sizeof(float), nu->knotsv);
1608                                         }
1609                                         nu= nu->next;
1610                                 }
1611                         }
1612                 }
1613                 cu= cu->id.next;
1614         }
1615
1616         /* flush helps the compression for undo-save */
1617         mywrite(wd, MYWRITE_FLUSH, 0);
1618 }
1619
1620 static void write_dverts(WriteData *wd, int count, MDeformVert *dvlist)
1621 {
1622         if (dvlist) {
1623                 int i;
1624                 
1625                 /* Write the dvert list */
1626                 writestruct(wd, DATA, "MDeformVert", count, dvlist);
1627                 
1628                 /* Write deformation data for each dvert */
1629                 for (i=0; i<count; i++) {
1630                         if (dvlist[i].dw)
1631                                 writestruct(wd, DATA, "MDeformWeight", dvlist[i].totweight, dvlist[i].dw);
1632                 }
1633         }
1634 }
1635
1636 static void write_mdisps(WriteData *wd, int count, MDisps *mdlist, int external)
1637 {
1638         if (mdlist) {
1639                 int i;
1640                 
1641                 writestruct(wd, DATA, "MDisps", count, mdlist);
1642                 for (i = 0; i < count; ++i) {
1643                         MDisps *md = &mdlist[i];
1644                         if (md->disps) {
1645                                 if (!external)
1646                                         writedata(wd, DATA, sizeof(float)*3*md->totdisp, md->disps);
1647                         }
1648                         
1649                         if (md->hidden)
1650                                 writedata(wd, DATA, BLI_BITMAP_SIZE(md->totdisp), md->hidden);
1651                 }
1652         }
1653 }
1654
1655 static void write_customdata(WriteData *wd, ID *id, int count, CustomData *data, int partial_type, int partial_count)
1656 {
1657         int i;
1658
1659         /* write external customdata (not for undo) */
1660         if (data->external && !wd->current)
1661                 CustomData_external_write(data, id, CD_MASK_MESH, count, 0);
1662
1663         writestruct(wd, DATA, "CustomDataLayer", data->maxlayer, data->layers);
1664
1665         for (i=0; i<data->totlayer; i++) {
1666                 CustomDataLayer *layer= &data->layers[i];
1667                 const char *structname;
1668                 int structnum, datasize;
1669
1670                 if (layer->type == CD_MDEFORMVERT) {
1671                         /* layer types that allocate own memory need special handling */
1672                         write_dverts(wd, count, layer->data);
1673                 }
1674                 else if (layer->type == CD_MDISPS) {
1675                         write_mdisps(wd, count, layer->data, layer->flag & CD_FLAG_EXTERNAL);
1676                 }
1677                 else {
1678                         CustomData_file_write_info(layer->type, &structname, &structnum);
1679                         if (structnum) {
1680                                 /* when using partial visibility, the MEdge and MFace layers
1681                                    are smaller than the original, so their type and count is
1682                                    passed to make this work */
1683                                 if (layer->type != partial_type) datasize= structnum*count;
1684                                 else datasize= structnum*partial_count;
1685
1686                                 writestruct(wd, DATA, structname, datasize, layer->data);
1687                         }
1688                         else
1689                                 printf("%s error: layer '%s':%d - can't be written to file\n",
1690                                        __func__, structname, layer->type);
1691                 }
1692         }
1693
1694         if (data->external)
1695                 writestruct(wd, DATA, "CustomDataExternal", 1, data->external);
1696 }
1697
1698 static void write_meshs(WriteData *wd, ListBase *idbase)
1699 {
1700         Mesh *mesh;
1701         int save_for_old_blender= 0;
1702
1703 #ifdef USE_BMESH_SAVE_AS_COMPAT
1704         save_for_old_blender = wd->use_mesh_compat; /* option to save with older mesh format */
1705 #endif
1706
1707         mesh= idbase->first;
1708         while (mesh) {
1709                 if (mesh->id.us>0 || wd->current) {
1710                         /* write LibData */
1711                         if (!save_for_old_blender) {
1712
1713 #ifdef USE_BMESH_SAVE_WITHOUT_MFACE
1714                                 Mesh backup_mesh = {{0}};
1715                                 /* cache only - don't write */
1716                                 backup_mesh.mface = mesh->mface;
1717                                 mesh->mface = NULL;
1718                                 /* -- */
1719                                 backup_mesh.totface = mesh->totface;
1720                                 mesh->totface = 0;
1721                                 /* -- */
1722 #endif /* USE_BMESH_SAVE_WITHOUT_MFACE */
1723
1724                                 writestruct(wd, ID_ME, "Mesh", 1, mesh);
1725
1726                                 /* direct data */
1727                                 if (mesh->id.properties) IDP_WriteProperty(mesh->id.properties, wd);
1728                                 if (mesh->adt) write_animdata(wd, mesh->adt);
1729
1730                                 writedata(wd, DATA, sizeof(void *)*mesh->totcol, mesh->mat);
1731                                 writedata(wd, DATA, sizeof(MSelect) * mesh->totselect, mesh->mselect);
1732
1733                                 write_customdata(wd, &mesh->id, mesh->totvert, &mesh->vdata, -1, 0);
1734                                 write_customdata(wd, &mesh->id, mesh->totedge, &mesh->edata, -1, 0);
1735                                 /* fdata is really a dummy - written so slots align */
1736                                 write_customdata(wd, &mesh->id, mesh->totface, &mesh->fdata, -1, 0);
1737                                 write_customdata(wd, &mesh->id, mesh->totloop, &mesh->ldata, -1, 0);
1738                                 write_customdata(wd, &mesh->id, mesh->totpoly, &mesh->pdata, -1, 0);
1739
1740 #ifdef USE_BMESH_SAVE_WITHOUT_MFACE
1741                                 /* cache only - don't write */
1742                                 mesh->mface = backup_mesh.mface;
1743                                 /* -- */
1744                                 mesh->totface = backup_mesh.totface;
1745 #endif /* USE_BMESH_SAVE_WITHOUT_MFACE */
1746
1747                         }
1748                         else {
1749
1750 #ifdef USE_BMESH_SAVE_AS_COMPAT
1751
1752                                 Mesh backup_mesh = {{0}};
1753
1754                                 /* backup */
1755                                 backup_mesh.mpoly = mesh->mpoly;
1756                                 mesh->mpoly = NULL;
1757                                 /* -- */
1758                                 backup_mesh.mface = mesh->mface;
1759                                 mesh->mface = NULL;
1760                                 /* -- */
1761                                 backup_mesh.totface = mesh->totface;
1762                                 mesh->totface = 0;
1763                                 /* -- */
1764                                 backup_mesh.totpoly = mesh->totpoly;
1765                                 mesh->totpoly = 0;
1766                                 /* -- */
1767                                 backup_mesh.totloop = mesh->totloop;
1768                                 mesh->totloop = 0;
1769                                 /* -- */
1770                                 backup_mesh.fdata = mesh->fdata;
1771                                 memset(&mesh->fdata, 0, sizeof(CustomData));
1772                                 /* -- */
1773                                 backup_mesh.pdata = mesh->pdata;
1774                                 memset(&mesh->pdata, 0, sizeof(CustomData));
1775                                 /* -- */
1776                                 backup_mesh.ldata = mesh->ldata;
1777                                 memset(&mesh->ldata, 0, sizeof(CustomData));
1778                                 /* -- */
1779                                 backup_mesh.edit_btmesh = mesh->edit_btmesh;
1780                                 mesh->edit_btmesh = NULL;
1781                                 /* backup */
1782
1783
1784                                 /* now fill in polys to mfaces*/
1785                                 mesh->totface= mesh_mpoly_to_mface(&mesh->fdata, &backup_mesh.ldata, &backup_mesh.pdata,
1786                                                                    mesh->totface, backup_mesh.totloop, backup_mesh.totpoly);
1787
1788                                 mesh_update_customdata_pointers(mesh, FALSE);
1789
1790                                 writestruct(wd, ID_ME, "Mesh", 1, mesh);
1791
1792                                 /* direct data */
1793                                 if (mesh->id.properties) IDP_WriteProperty(mesh->id.properties, wd);
1794                                 if (mesh->adt) write_animdata(wd, mesh->adt);
1795
1796                                 writedata(wd, DATA, sizeof(void *)*mesh->totcol, mesh->mat);
1797                                 /* writedata(wd, DATA, sizeof(MSelect) * mesh->totselect, mesh->mselect); */ /* pre-bmesh NULL's */
1798
1799                                 write_customdata(wd, &mesh->id, mesh->totvert, &mesh->vdata, -1, 0);
1800                                 write_customdata(wd, &mesh->id, mesh->totedge, &mesh->edata, -1, 0);
1801                                 write_customdata(wd, &mesh->id, mesh->totface, &mesh->fdata, -1, 0);
1802                                 /* harmless for older blender versioins but _not_ writing these keeps file size down */
1803                                 /*
1804                                 write_customdata(wd, &mesh->id, mesh->totloop, &mesh->ldata, -1, 0);
1805                                 write_customdata(wd, &mesh->id, mesh->totpoly, &mesh->pdata, -1, 0);
1806                                 */
1807
1808                                 /* restore */
1809                                 mesh->mpoly = backup_mesh.mpoly;
1810                                 /* -- */
1811                                 mesh->mface = backup_mesh.mface;
1812                                 /* -- */
1813                                 CustomData_free(&mesh->fdata, mesh->totface);
1814                                 /* -- */
1815                                 mesh->fdata= backup_mesh.fdata;
1816                                 /* -- */
1817                                 mesh->pdata= backup_mesh.pdata;
1818                                 /* -- */
1819                                 mesh->ldata= backup_mesh.ldata;
1820                                 /* -- */
1821                                 mesh->totface = backup_mesh.totface;
1822                                 mesh->totpoly = backup_mesh.totpoly;
1823                                 mesh->totloop = backup_mesh.totloop;
1824                                 /* -- */
1825                                 mesh_update_customdata_pointers(mesh, FALSE);
1826                                 /* --*/
1827                                 mesh->edit_btmesh = backup_mesh.edit_btmesh; /* keep this after updating custom pointers */
1828                                 /* restore */
1829
1830 #endif /* USE_BMESH_SAVE_AS_COMPAT */
1831                         }
1832                 }
1833                 mesh= mesh->id.next;
1834         }
1835 }
1836
1837 static void write_lattices(WriteData *wd, ListBase *idbase)
1838 {
1839         Lattice *lt;
1840         
1841         lt= idbase->first;
1842         while (lt) {
1843                 if (lt->id.us>0 || wd->current) {
1844                         /* write LibData */
1845                         writestruct(wd, ID_LT, "Lattice", 1, lt);
1846                         if (lt->id.properties) IDP_WriteProperty(lt->id.properties, wd);
1847                         
1848                         /* write animdata */
1849                         if (lt->adt) write_animdata(wd, lt->adt);
1850                         
1851                         /* direct data */
1852                         writestruct(wd, DATA, "BPoint", lt->pntsu*lt->pntsv*lt->pntsw, lt->def);
1853                         
1854                         write_dverts(wd, lt->pntsu*lt->pntsv*lt->pntsw, lt->dvert);
1855                         
1856                 }
1857                 lt= lt->id.next;
1858         }
1859 }
1860
1861 static void write_previews(WriteData *wd, PreviewImage *prv)
1862 {
1863         if (prv) {
1864                 short w = prv->w[1];
1865                 short h = prv->h[1];
1866                 unsigned int *rect = prv->rect[1];
1867                 /* don't write out large previews if not requested */
1868                 if (!(U.flag & USER_SAVE_PREVIEWS)) {
1869                         prv->w[1] = 0;
1870                         prv->h[1] = 0;
1871                         prv->rect[1] = NULL;
1872                 }
1873                 writestruct(wd, DATA, "PreviewImage", 1, prv);
1874                 if (prv->rect[0]) writedata(wd, DATA, prv->w[0]*prv->h[0]*sizeof(unsigned int), prv->rect[0]);
1875                 if (prv->rect[1]) writedata(wd, DATA, prv->w[1]*prv->h[1]*sizeof(unsigned int), prv->rect[1]);
1876
1877                 /* restore preview, we still want to keep it in memory even if not saved to file */
1878                 if (!(U.flag & USER_SAVE_PREVIEWS) ) {
1879                         prv->w[1] = w;
1880                         prv->h[1] = h;
1881                         prv->rect[1] = rect;
1882                 }
1883         }
1884 }
1885
1886 static void write_images(WriteData *wd, ListBase *idbase)
1887 {
1888         Image *ima;
1889         PackedFile * pf;
1890
1891
1892         ima= idbase->first;
1893         while (ima) {
1894                 if (ima->id.us>0 || wd->current) {
1895                         /* write LibData */
1896                         writestruct(wd, ID_IM, "Image", 1, ima);
1897                         if (ima->id.properties) IDP_WriteProperty(ima->id.properties, wd);
1898
1899                         if (ima->packedfile) {
1900                                 pf = ima->packedfile;
1901                                 writestruct(wd, DATA, "PackedFile", 1, pf);
1902                                 writedata(wd, DATA, pf->size, pf->data);
1903                         }
1904
1905                         write_previews(wd, ima->preview);
1906                 }
1907                 ima= ima->id.next;
1908         }
1909         /* flush helps the compression for undo-save */
1910         mywrite(wd, MYWRITE_FLUSH, 0);
1911 }
1912
1913 static void write_textures(WriteData *wd, ListBase *idbase)
1914 {
1915         Tex *tex;
1916
1917         tex= idbase->first;
1918         while (tex) {
1919                 if (tex->id.us>0 || wd->current) {
1920                         /* write LibData */
1921                         writestruct(wd, ID_TE, "Tex", 1, tex);
1922                         if (tex->id.properties) IDP_WriteProperty(tex->id.properties, wd);
1923
1924                         if (tex->adt) write_animdata(wd, tex->adt);
1925
1926                         /* direct data */
1927                         if (tex->type == TEX_PLUGIN && tex->plugin) writestruct(wd, DATA, "PluginTex", 1, tex->plugin);
1928                         if (tex->coba) writestruct(wd, DATA, "ColorBand", 1, tex->coba);
1929                         if (tex->type == TEX_ENVMAP && tex->env) writestruct(wd, DATA, "EnvMap", 1, tex->env);
1930                         if (tex->type == TEX_POINTDENSITY && tex->pd) {
1931                                 writestruct(wd, DATA, "PointDensity", 1, tex->pd);
1932                                 if (tex->pd->coba) writestruct(wd, DATA, "ColorBand", 1, tex->pd->coba);
1933                                 if (tex->pd->falloff_curve) write_curvemapping(wd, tex->pd->falloff_curve);
1934                         }
1935                         if (tex->type == TEX_VOXELDATA) writestruct(wd, DATA, "VoxelData", 1, tex->vd);
1936                         if (tex->type == TEX_OCEAN && tex->ot) writestruct(wd, DATA, "OceanTex", 1, tex->ot);
1937                         
1938                         /* nodetree is integral part of texture, no libdata */
1939                         if (tex->nodetree) {
1940                                 writestruct(wd, DATA, "bNodeTree", 1, tex->nodetree);
1941                                 write_nodetree(wd, tex->nodetree);
1942                         }
1943                         
1944                         write_previews(wd, tex->preview);
1945                 }
1946                 tex= tex->id.next;
1947         }
1948
1949         /* flush helps the compression for undo-save */
1950         mywrite(wd, MYWRITE_FLUSH, 0);
1951 }
1952
1953 static void write_materials(WriteData *wd, ListBase *idbase)
1954 {
1955         Material *ma;
1956         int a;
1957
1958         ma= idbase->first;
1959         while (ma) {
1960                 if (ma->id.us>0 || wd->current) {
1961                         /* write LibData */
1962                         writestruct(wd, ID_MA, "Material", 1, ma);
1963                         
1964                         /*Write ID Properties -- and copy this comment EXACTLY for easy finding
1965                           of library blocks that implement this.*/
1966                         /*manually set head group property to IDP_GROUP, just in case it hadn't been
1967                           set yet :) */
1968                         if (ma->id.properties) IDP_WriteProperty(ma->id.properties, wd);
1969                         
1970                         if (ma->adt) write_animdata(wd, ma->adt);
1971
1972                         for (a=0; a<MAX_MTEX; a++) {
1973                                 if (ma->mtex[a]) writestruct(wd, DATA, "MTex", 1, ma->mtex[a]);
1974                         }
1975                         
1976                         if (ma->ramp_col) writestruct(wd, DATA, "ColorBand", 1, ma->ramp_col);
1977                         if (ma->ramp_spec) writestruct(wd, DATA, "ColorBand", 1, ma->ramp_spec);
1978                         
1979                         /* nodetree is integral part of material, no libdata */
1980                         if (ma->nodetree) {
1981                                 writestruct(wd, DATA, "bNodeTree", 1, ma->nodetree);
1982                                 write_nodetree(wd, ma->nodetree);
1983                         }
1984
1985                         write_previews(wd, ma->preview);                        
1986                 }
1987                 ma= ma->id.next;
1988         }
1989 }
1990
1991 static void write_worlds(WriteData *wd, ListBase *idbase)
1992 {
1993         World *wrld;
1994         int a;
1995
1996         wrld= idbase->first;
1997         while (wrld) {
1998                 if (wrld->id.us>0 || wd->current) {
1999                         /* write LibData */
2000                         writestruct(wd, ID_WO, "World", 1, wrld);
2001                         if (wrld->id.properties) IDP_WriteProperty(wrld->id.properties, wd);
2002                         
2003                         if (wrld->adt) write_animdata(wd, wrld->adt);
2004                         
2005                         for (a=0; a<MAX_MTEX; a++) {
2006                                 if (wrld->mtex[a]) writestruct(wd, DATA, "MTex", 1, wrld->mtex[a]);
2007                         }
2008
2009                         /* nodetree is integral part of lamps, no libdata */
2010                         if (wrld->nodetree) {
2011                                 writestruct(wd, DATA, "bNodeTree", 1, wrld->nodetree);
2012                                 write_nodetree(wd, wrld->nodetree);
2013                         }
2014                         
2015                         write_previews(wd, wrld->preview);
2016                 }
2017                 wrld= wrld->id.next;
2018         }
2019 }
2020
2021 static void write_lamps(WriteData *wd, ListBase *idbase)
2022 {
2023         Lamp *la;
2024         int a;
2025
2026         la= idbase->first;
2027         while (la) {
2028                 if (la->id.us>0 || wd->current) {
2029                         /* write LibData */
2030                         writestruct(wd, ID_LA, "Lamp", 1, la);
2031                         if (la->id.properties) IDP_WriteProperty(la->id.properties, wd);
2032                         
2033                         if (la->adt) write_animdata(wd, la->adt);
2034                         
2035                         /* direct data */
2036                         for (a=0; a<MAX_MTEX; a++) {
2037                                 if (la->mtex[a]) writestruct(wd, DATA, "MTex", 1, la->mtex[a]);
2038                         }
2039                         
2040                         if (la->curfalloff)
2041                                 write_curvemapping(wd, la->curfalloff); 
2042                         
2043                         /* nodetree is integral part of lamps, no libdata */
2044                         if (la->nodetree) {
2045                                 writestruct(wd, DATA, "bNodeTree", 1, la->nodetree);
2046                                 write_nodetree(wd, la->nodetree);
2047                         }
2048
2049                         write_previews(wd, la->preview);
2050                         
2051                 }
2052                 la= la->id.next;
2053         }
2054 }
2055
2056
2057 static void write_scenes(WriteData *wd, ListBase *scebase)
2058 {
2059         Scene *sce;
2060         Base *base;
2061         Editing *ed;
2062         Sequence *seq;
2063         MetaStack *ms;
2064         Strip *strip;
2065         TimeMarker *marker;
2066         TransformOrientation *ts;
2067         SceneRenderLayer *srl;
2068         ToolSettings *tos;
2069         
2070         sce= scebase->first;
2071         while (sce) {
2072                 /* write LibData */
2073                 writestruct(wd, ID_SCE, "Scene", 1, sce);
2074                 if (sce->id.properties) IDP_WriteProperty(sce->id.properties, wd);
2075                 
2076                 if (sce->adt) write_animdata(wd, sce->adt);
2077                 write_keyingsets(wd, &sce->keyingsets);
2078                 
2079                 /* direct data */
2080                 base= sce->base.first;
2081                 while (base) {
2082                         writestruct(wd, DATA, "Base", 1, base);
2083                         base= base->next;
2084                 }
2085                 
2086                 tos = sce->toolsettings;
2087                 writestruct(wd, DATA, "ToolSettings", 1, tos);
2088                 if (tos->vpaint) {
2089                         writestruct(wd, DATA, "VPaint", 1, tos->vpaint);
2090                 }
2091                 if (tos->wpaint) {
2092                         writestruct(wd, DATA, "VPaint", 1, tos->wpaint);
2093                 }
2094                 if (tos->sculpt) {
2095                         writestruct(wd, DATA, "Sculpt", 1, tos->sculpt);
2096                 }
2097                 if (tos->uvsculpt) {
2098                         writestruct(wd, DATA, "UvSculpt", 1, tos->uvsculpt);
2099                 }
2100
2101                 // write_paint(wd, &tos->imapaint.paint);
2102
2103                 ed= sce->ed;
2104                 if (ed) {
2105                         writestruct(wd, DATA, "Editing", 1, ed);
2106                         
2107                         /* reset write flags too */
2108                         
2109                         SEQ_BEGIN(ed, seq) {
2110                                 if (seq->strip) seq->strip->done= 0;
2111                                 writestruct(wd, DATA, "Sequence", 1, seq);
2112                         }
2113                         SEQ_END
2114                         
2115                         SEQ_BEGIN(ed, seq) {
2116                                 if (seq->strip && seq->strip->done==0) {
2117                                         /* write strip with 'done' at 0 because readfile */
2118                                         
2119                                         if (seq->plugin) writestruct(wd, DATA, "PluginSeq", 1, seq->plugin);
2120                                         if (seq->effectdata) {
2121                                                 switch(seq->type) {
2122                                                 case SEQ_COLOR:
2123                                                         writestruct(wd, DATA, "SolidColorVars", 1, seq->effectdata);
2124                                                         break;
2125                                                 case SEQ_SPEED:
2126                                                         writestruct(wd, DATA, "SpeedControlVars", 1, seq->effectdata);
2127                                                         break;
2128                                                 case SEQ_WIPE:
2129                                                         writestruct(wd, DATA, "WipeVars", 1, seq->effectdata);
2130                                                         break;
2131                                                 case SEQ_GLOW:
2132                                                         writestruct(wd, DATA, "GlowVars", 1, seq->effectdata);
2133                                                         break;
2134                                                 case SEQ_TRANSFORM:
2135                                                         writestruct(wd, DATA, "TransformVars", 1, seq->effectdata);
2136                                                         break;
2137                                                 }
2138                                         }
2139                                         
2140                                         strip= seq->strip;
2141                                         writestruct(wd, DATA, "Strip", 1, strip);
2142                                         if (seq->flag & SEQ_USE_CROP && strip->crop) {
2143                                                 writestruct(wd, DATA, "StripCrop", 1, strip->crop);
2144                                         }
2145                                         if (seq->flag & SEQ_USE_TRANSFORM && strip->transform) {
2146                                                 writestruct(wd, DATA, "StripTransform", 1, strip->transform);
2147                                         }
2148                                         if (seq->flag & SEQ_USE_PROXY && strip->proxy) {
2149                                                 writestruct(wd, DATA, "StripProxy", 1, strip->proxy);
2150                                         }
2151                                         if (seq->flag & SEQ_USE_COLOR_BALANCE && strip->color_balance) {
2152                                                 writestruct(wd, DATA, "StripColorBalance", 1, strip->color_balance);
2153                                         }
2154                                         if (seq->type==SEQ_IMAGE)
2155                                                 writestruct(wd, DATA, "StripElem", MEM_allocN_len(strip->stripdata) / sizeof(struct StripElem), strip->stripdata);
2156                                         else if (seq->type==SEQ_MOVIE || seq->type==SEQ_RAM_SOUND || seq->type == SEQ_HD_SOUND)
2157                                                 writestruct(wd, DATA, "StripElem", 1, strip->stripdata);
2158                                         
2159                                         strip->done= 1;
2160                                 }
2161                         }
2162                         SEQ_END
2163                                 
2164                         /* new; meta stack too, even when its nasty restore code */
2165                         for (ms= ed->metastack.first; ms; ms= ms->next) {
2166                                 writestruct(wd, DATA, "MetaStack", 1, ms);
2167                         }
2168                 }
2169                 
2170                 if (sce->r.avicodecdata) {
2171                         writestruct(wd, DATA, "AviCodecData", 1, sce->r.avicodecdata);
2172                         if (sce->r.avicodecdata->lpFormat) writedata(wd, DATA, sce->r.avicodecdata->cbFormat, sce->r.avicodecdata->lpFormat);
2173                         if (sce->r.avicodecdata->lpParms) writedata(wd, DATA, sce->r.avicodecdata->cbParms, sce->r.avicodecdata->lpParms);
2174                 }
2175
2176                 if (sce->r.qtcodecdata) {
2177                         writestruct(wd, DATA, "QuicktimeCodecData", 1, sce->r.qtcodecdata);
2178                         if (sce->r.qtcodecdata->cdParms) writedata(wd, DATA, sce->r.qtcodecdata->cdSize, sce->r.qtcodecdata->cdParms);
2179                 }
2180                 if (sce->r.ffcodecdata.properties) {
2181                         IDP_WriteProperty(sce->r.ffcodecdata.properties, wd);
2182                 }
2183
2184                 /* writing dynamic list of TimeMarkers to the blend file */
2185                 for (marker= sce->markers.first; marker; marker= marker->next)
2186                         writestruct(wd, DATA, "TimeMarker", 1, marker);
2187                 
2188                 /* writing dynamic list of TransformOrientations to the blend file */
2189                 for (ts = sce->transform_spaces.first; ts; ts = ts->next)
2190                         writestruct(wd, DATA, "TransformOrientation", 1, ts);
2191                 
2192                 for (srl= sce->r.layers.first; srl; srl= srl->next)
2193                         writestruct(wd, DATA, "SceneRenderLayer", 1, srl);
2194                 
2195                 if (sce->nodetree) {
2196                         writestruct(wd, DATA, "bNodeTree", 1, sce->nodetree);
2197                         write_nodetree(wd, sce->nodetree);
2198                 }
2199                 
2200                 sce= sce->id.next;
2201         }
2202         /* flush helps the compression for undo-save */
2203         mywrite(wd, MYWRITE_FLUSH, 0);
2204 }
2205
2206 static void write_gpencils(WriteData *wd, ListBase *lb)
2207 {
2208         bGPdata *gpd;
2209         bGPDlayer *gpl;
2210         bGPDframe *gpf;
2211         bGPDstroke *gps;
2212         
2213         for (gpd= lb->first; gpd; gpd= gpd->id.next) {
2214                 if (gpd->id.us>0 || wd->current) {
2215                         /* write gpd data block to file */
2216                         writestruct(wd, ID_GD, "bGPdata", 1, gpd);
2217                         
2218                         /* write grease-pencil layers to file */
2219                         for (gpl= gpd->layers.first; gpl; gpl= gpl->next) {
2220                                 writestruct(wd, DATA, "bGPDlayer", 1, gpl);
2221                                 
2222                                 /* write this layer's frames to file */
2223                                 for (gpf= gpl->frames.first; gpf; gpf= gpf->next) {
2224                                         writestruct(wd, DATA, "bGPDframe", 1, gpf);
2225                                         
2226                                         /* write strokes */
2227                                         for (gps= gpf->strokes.first; gps; gps= gps->next) {
2228                                                 writestruct(wd, DATA, "bGPDstroke", 1, gps);
2229                                                 writestruct(wd, DATA, "bGPDspoint", gps->totpoints, gps->points);                               
2230                                         }
2231                                 }
2232                         }
2233                 }
2234         }
2235 }
2236
2237 static void write_windowmanagers(WriteData *wd, ListBase *lb)
2238 {
2239         wmWindowManager *wm;
2240         wmWindow *win;
2241         
2242         for (wm= lb->first; wm; wm= wm->id.next) {
2243                 writestruct(wd, ID_WM, "wmWindowManager", 1, wm);
2244                 
2245                 for (win= wm->windows.first; win; win= win->next)
2246                         writestruct(wd, DATA, "wmWindow", 1, win);
2247         }
2248 }
2249
2250 static void write_region(WriteData *wd, ARegion *ar, int spacetype)
2251 {       
2252         writestruct(wd, DATA, "ARegion", 1, ar);
2253         
2254         if (ar->regiondata) {
2255                 switch(spacetype) {
2256                         case SPACE_VIEW3D:
2257                                 if (ar->regiontype==RGN_TYPE_WINDOW) {
2258                                         RegionView3D *rv3d= ar->regiondata;
2259                                         writestruct(wd, DATA, "RegionView3D", 1, rv3d);
2260                                         
2261                                         if (rv3d->localvd)
2262                                                 writestruct(wd, DATA, "RegionView3D", 1, rv3d->localvd);
2263                                         if (rv3d->clipbb)
2264                                                 writestruct(wd, DATA, "BoundBox", 1, rv3d->clipbb);
2265
2266                                 }
2267                                 else
2268                                         printf("regiondata write missing!\n");
2269                                 break;
2270                         default:
2271                                 printf("regiondata write missing!\n");
2272                 }
2273         }
2274 }
2275
2276 static void write_screens(WriteData *wd, ListBase *scrbase)
2277 {
2278         bScreen *sc;
2279         ScrArea *sa;
2280         ScrVert *sv;
2281         ScrEdge *se;
2282
2283         sc= scrbase->first;
2284         while (sc) {
2285                 
2286                 /* write LibData */
2287                 /* in 2.50+ files, the file identifier for screens is patched, forward compatibility */
2288                 writestruct(wd, ID_SCRN, "Screen", 1, sc);
2289                 if (sc->id.properties) 
2290                         IDP_WriteProperty(sc->id.properties, wd);
2291                 
2292                 /* direct data */
2293                 for (sv= sc->vertbase.first; sv; sv= sv->next)
2294                         writestruct(wd, DATA, "ScrVert", 1, sv);
2295                 
2296                 for (se= sc->edgebase.first; se; se= se->next)
2297                         writestruct(wd, DATA, "ScrEdge", 1, se);
2298                 
2299                 for (sa= sc->areabase.first; sa; sa= sa->next) {
2300                         SpaceLink *sl;
2301                         Panel *pa;
2302                         ARegion *ar;
2303                         
2304                         writestruct(wd, DATA, "ScrArea", 1, sa);
2305                         
2306                         for (ar= sa->regionbase.first; ar; ar= ar->next) {
2307                                 write_region(wd, ar, sa->spacetype);
2308                                 
2309                                 for (pa= ar->panels.first; pa; pa= pa->next)
2310                                         writestruct(wd, DATA, "Panel", 1, pa);
2311                         }
2312                         
2313                         sl= sa->spacedata.first;
2314                         while (sl) {
2315                                 for (ar= sl->regionbase.first; ar; ar= ar->next)
2316                                         write_region(wd, ar, sl->spacetype);
2317                                 
2318                                 if (sl->spacetype==SPACE_VIEW3D) {
2319                                         View3D *v3d= (View3D *) sl;
2320                                         BGpic *bgpic;
2321                                         writestruct(wd, DATA, "View3D", 1, v3d);
2322                                         for (bgpic= v3d->bgpicbase.first; bgpic; bgpic= bgpic->next)
2323                                                 writestruct(wd, DATA, "BGpic", 1, bgpic);
2324                                         if (v3d->localvd) writestruct(wd, DATA, "View3D", 1, v3d->localvd);
2325                                 }
2326                                 else if (sl->spacetype==SPACE_IPO) {
2327                                         SpaceIpo *sipo= (SpaceIpo *)sl;
2328                                         ListBase tmpGhosts = sipo->ghostCurves;
2329                                         
2330                                         /* temporarily disable ghost curves when saving */
2331                                         sipo->ghostCurves.first= sipo->ghostCurves.last= NULL;
2332                                         
2333                                         writestruct(wd, DATA, "SpaceIpo", 1, sl);
2334                                         if (sipo->ads) writestruct(wd, DATA, "bDopeSheet", 1, sipo->ads);
2335                                         
2336                                         /* reenable ghost curves */
2337                                         sipo->ghostCurves= tmpGhosts;
2338                                 }
2339                                 else if (sl->spacetype==SPACE_BUTS) {
2340                                         writestruct(wd, DATA, "SpaceButs", 1, sl);
2341                                 }
2342                                 else if (sl->spacetype==SPACE_FILE) {
2343                                         SpaceFile *sfile= (SpaceFile *)sl;
2344
2345                                         writestruct(wd, DATA, "SpaceFile", 1, sl);
2346                                         if (sfile->params)
2347                                                 writestruct(wd, DATA, "FileSelectParams", 1, sfile->params);
2348                                 }
2349                                 else if (sl->spacetype==SPACE_SEQ) {
2350                                         writestruct(wd, DATA, "SpaceSeq", 1, sl);
2351                                 }
2352                                 else if (sl->spacetype==SPACE_OUTLINER) {
2353                                         SpaceOops *so= (SpaceOops *)sl;
2354                                         
2355                                         writestruct(wd, DATA, "SpaceOops", 1, so);
2356
2357                                         /* outliner */
2358                                         if (so->treestore) {
2359                                                 writestruct(wd, DATA, "TreeStore", 1, so->treestore);
2360                                                 if (so->treestore->data)
2361                                                         writestruct(wd, DATA, "TreeStoreElem", so->treestore->usedelem, so->treestore->data);
2362                                         }
2363                                 }
2364                                 else if (sl->spacetype==SPACE_IMAGE) {
2365                                         SpaceImage *sima= (SpaceImage *)sl;
2366                                         
2367                                         writestruct(wd, DATA, "SpaceImage", 1, sl);
2368                                         if (sima->cumap)
2369                                                 write_curvemapping(wd, sima->cumap);
2370                                 }
2371                                 else if (sl->spacetype==SPACE_TEXT) {
2372                                         writestruct(wd, DATA, "SpaceText", 1, sl);
2373                                 }
2374                                 else if (sl->spacetype==SPACE_SCRIPT) {
2375                                         SpaceScript *scr = (SpaceScript*)sl;
2376                                         scr->but_refs = NULL;
2377                                         writestruct(wd, DATA, "SpaceScript", 1, sl);
2378                                 }
2379                                 else if (sl->spacetype==SPACE_ACTION) {
2380                                         writestruct(wd, DATA, "SpaceAction", 1, sl);
2381                                 }
2382                                 else if (sl->spacetype==SPACE_NLA) {
2383                                         SpaceNla *snla= (SpaceNla *)sl;
2384                                         
2385                                         writestruct(wd, DATA, "SpaceNla", 1, snla);
2386                                         if (snla->ads) writestruct(wd, DATA, "bDopeSheet", 1, snla->ads);
2387                                 }
2388                                 else if (sl->spacetype==SPACE_TIME) {
2389                                         writestruct(wd, DATA, "SpaceTime", 1, sl);
2390                                 }
2391                                 else if (sl->spacetype==SPACE_NODE) {
2392                                         writestruct(wd, DATA, "SpaceNode", 1, sl);
2393                                 }
2394                                 else if (sl->spacetype==SPACE_LOGIC) {
2395                                         writestruct(wd, DATA, "SpaceLogic", 1, sl);
2396                                 }
2397                                 else if (sl->spacetype==SPACE_CONSOLE) {
2398                                         SpaceConsole *con = (SpaceConsole*)sl;
2399                                         ConsoleLine *cl;
2400
2401                                         for (cl=con->history.first; cl; cl=cl->next) {
2402                                                 /* 'len_alloc' is invalid on write, set from 'len' on read */
2403                                                 writestruct(wd, DATA, "ConsoleLine", 1, cl);
2404                                                 writedata(wd, DATA, cl->len+1, cl->line);
2405                                         }
2406                                         writestruct(wd, DATA, "SpaceConsole", 1, sl);
2407
2408                                 }
2409                                 else if (sl->spacetype==SPACE_USERPREF) {
2410                                         writestruct(wd, DATA, "SpaceUserPref", 1, sl);
2411                                 }
2412                                 else if (sl->spacetype==SPACE_CLIP) {
2413                                         writestruct(wd, DATA, "SpaceClip", 1, sl);
2414                                 }
2415
2416                                 sl= sl->next;
2417                         }
2418                 }
2419
2420                 sc= sc->id.next;
2421         }
2422 }
2423
2424 static void write_libraries(WriteData *wd, Main *main)
2425 {
2426         ListBase *lbarray[MAX_LIBARRAY];
2427         ID *id;
2428         int a, tot, foundone;
2429
2430         for (; main; main= main->next) {
2431
2432                 a=tot= set_listbasepointers(main, lbarray);
2433
2434                 /* test: is lib being used */
2435                 foundone= 0;
2436                 while (tot--) {
2437                         for (id= lbarray[tot]->first; id; id= id->next) {
2438                                 if (id->us>0 && (id->flag & LIB_EXTERN)) {
2439                                         foundone= 1;
2440                                         break;
2441                                 }
2442                         }
2443                         if (foundone) break;
2444                 }
2445
2446                 if (foundone) {
2447                         writestruct(wd, ID_LI, "Library", 1, main->curlib);
2448
2449                         while (a--) {
2450                                 for (id= lbarray[a]->first; id; id= id->next) {
2451                                         if (id->us>0 && (id->flag & LIB_EXTERN)) {
2452                                                 writestruct(wd, ID_ID, "ID", 1, id);
2453                                         }
2454                                 }
2455                         }
2456                 }
2457         }
2458 }
2459
2460 static void write_bone(WriteData *wd, Bone* bone)
2461 {
2462         Bone*   cbone;
2463
2464         // PATCH for upward compatibility after 2.37+ armature recode
2465         bone->size[0]= bone->size[1]= bone->size[2]= 1.0f;
2466                 
2467         // Write this bone
2468         writestruct(wd, DATA, "Bone", 1, bone);
2469
2470         /* Write ID Properties -- and copy this comment EXACTLY for easy finding
2471          of library blocks that implement this.*/
2472         if (bone->prop)
2473                 IDP_WriteProperty(bone->prop, wd);
2474         
2475         // Write Children
2476         cbone= bone->childbase.first;
2477         while (cbone) {
2478                 write_bone(wd, cbone);
2479                 cbone= cbone->next;
2480         }
2481 }
2482
2483 static void write_armatures(WriteData *wd, ListBase *idbase)
2484 {
2485         bArmature       *arm;
2486         Bone            *bone;
2487
2488         arm=idbase->first;
2489         while (arm) {
2490                 if (arm->id.us>0 || wd->current) {
2491                         writestruct(wd, ID_AR, "bArmature", 1, arm);
2492                         if (arm->id.properties) IDP_WriteProperty(arm->id.properties, wd);
2493
2494                         if (arm->adt) write_animdata(wd, arm->adt);
2495
2496                         /* Direct data */
2497                         bone= arm->bonebase.first;
2498                         while (bone) {
2499                                 write_bone(wd, bone);
2500                                 bone=bone->next;
2501                         }
2502                 }
2503                 arm=arm->id.next;
2504         }
2505
2506         /* flush helps the compression for undo-save */
2507         mywrite(wd, MYWRITE_FLUSH, 0);
2508 }
2509
2510 static void write_texts(WriteData *wd, ListBase *idbase)
2511 {
2512         Text *text;
2513         TextLine *tmp;
2514         TextMarker *mrk;
2515
2516         text= idbase->first;
2517         while (text) {
2518                 if ( (text->flags & TXT_ISMEM) && (text->flags & TXT_ISEXT)) text->flags &= ~TXT_ISEXT;
2519
2520                 /* write LibData */
2521                 writestruct(wd, ID_TXT, "Text", 1, text);
2522                 if (text->name) writedata(wd, DATA, strlen(text->name)+1, text->name);
2523                 if (text->id.properties) IDP_WriteProperty(text->id.properties, wd);
2524
2525                 if (!(text->flags & TXT_ISEXT)) {
2526                         /* now write the text data, in two steps for optimization in the readfunction */
2527                         tmp= text->lines.first;
2528                         while (tmp) {
2529                                 writestruct(wd, DATA, "TextLine", 1, tmp);
2530                                 tmp= tmp->next;
2531                         }
2532
2533                         tmp= text->lines.first;
2534                         while (tmp) {
2535                                 writedata(wd, DATA, tmp->len+1, tmp->line);
2536                                 tmp= tmp->next;
2537                         }
2538
2539                         /* write markers */
2540                         mrk= text->markers.first;
2541                         while (mrk) {
2542                                 writestruct(wd, DATA, "TextMarker", 1, mrk);
2543                                 mrk= mrk->next;
2544                         }
2545                 }
2546
2547
2548                 text= text->id.next;
2549         }
2550
2551         /* flush helps the compression for undo-save */
2552         mywrite(wd, MYWRITE_FLUSH, 0);
2553 }
2554
2555 static void write_speakers(WriteData *wd, ListBase *idbase)
2556 {
2557         Speaker *spk;
2558
2559         spk= idbase->first;
2560         while (spk) {
2561                 if (spk->id.us>0 || wd->current) {
2562                         /* write LibData */
2563                         writestruct(wd, ID_SPK, "Speaker", 1, spk);
2564                         if (spk->id.properties) IDP_WriteProperty(spk->id.properties, wd);
2565
2566                         if (spk->adt) write_animdata(wd, spk->adt);
2567                 }
2568                 spk= spk->id.next;
2569         }
2570 }
2571
2572 static void write_sounds(WriteData *wd, ListBase *idbase)
2573 {
2574         bSound *sound;
2575
2576         PackedFile * pf;
2577
2578         sound= idbase->first;
2579         while (sound) {
2580                 if (sound->id.us>0 || wd->current) {
2581                         /* write LibData */
2582                         writestruct(wd, ID_SO, "bSound", 1, sound);
2583                         if (sound->id.properties) IDP_WriteProperty(sound->id.properties, wd);
2584
2585                         if (sound->packedfile) {
2586                                 pf = sound->packedfile;
2587                                 writestruct(wd, DATA, "PackedFile", 1, pf);
2588                                 writedata(wd, DATA, pf->size, pf->data);
2589                         }
2590                 }
2591                 sound= sound->id.next;
2592         }
2593
2594         /* flush helps the compression for undo-save */
2595         mywrite(wd, MYWRITE_FLUSH, 0);
2596 }
2597
2598 static void write_groups(WriteData *wd, ListBase *idbase)
2599 {
2600         Group *group;
2601         GroupObject *go;
2602
2603         for (group= idbase->first; group; group= group->id.next) {
2604                 if (group->id.us>0 || wd->current) {
2605                         /* write LibData */
2606                         writestruct(wd, ID_GR, "Group", 1, group);
2607                         if (group->id.properties) IDP_WriteProperty(group->id.properties, wd);
2608
2609                         go= group->gobject.first;
2610                         while (go) {
2611                                 writestruct(wd, DATA, "GroupObject", 1, go);
2612                                 go= go->next;
2613                         }
2614                 }
2615         }
2616 }
2617
2618 static void write_nodetrees(WriteData *wd, ListBase *idbase)
2619 {
2620         bNodeTree *ntree;
2621         
2622         for (ntree=idbase->first; ntree; ntree= ntree->id.next) {
2623                 if (ntree->id.us>0 || wd->current) {
2624                         writestruct(wd, ID_NT, "bNodeTree", 1, ntree);
2625                         write_nodetree(wd, ntree);
2626                         
2627                         if (ntree->id.properties) IDP_WriteProperty(ntree->id.properties, wd);
2628                         
2629                         if (ntree->adt) write_animdata(wd, ntree->adt);
2630                 }
2631         }
2632 }
2633
2634 static void write_brushes(WriteData *wd, ListBase *idbase)
2635 {
2636         Brush *brush;
2637         
2638         for (brush=idbase->first; brush; brush= brush->id.next) {
2639                 if (brush->id.us>0 || wd->current) {
2640                         writestruct(wd, ID_BR, "Brush", 1, brush);
2641                         if (brush->id.properties) IDP_WriteProperty(brush->id.properties, wd);
2642                         
2643                         writestruct(wd, DATA, "MTex", 1, &brush->mtex);
2644                         
2645                         if (brush->curve)
2646                                 write_curvemapping(wd, brush->curve);
2647                 }
2648         }
2649 }
2650
2651 static void write_scripts(WriteData *wd, ListBase *idbase)
2652 {
2653         Script *script;
2654         
2655         for (script=idbase->first; script; script= script->id.next) {
2656                 if (script->id.us>0 || wd->current) {
2657                         writestruct(wd, ID_SCRIPT, "Script", 1, script);
2658                         if (script->id.properties) IDP_WriteProperty(script->id.properties, wd);
2659                 }
2660         }
2661 }
2662
2663 static void write_movieTracks(WriteData *wd, ListBase *tracks)
2664 {
2665         MovieTrackingTrack *track;
2666
2667         track= tracks->first;
2668         while (track) {
2669                 writestruct(wd, DATA, "MovieTrackingTrack", 1, track);
2670
2671                 if (track->markers)
2672                         writestruct(wd, DATA, "MovieTrackingMarker", track->markersnr, track->markers);
2673
2674                 track= track->next;
2675         }
2676 }
2677
2678 static void write_movieReconstruction(WriteData *wd, MovieTrackingReconstruction *reconstruction)
2679 {
2680         if (reconstruction->camnr)
2681                 writestruct(wd, DATA, "MovieReconstructedCamera", reconstruction->camnr, reconstruction->cameras);
2682 }
2683
2684 static void write_movieclips(WriteData *wd, ListBase *idbase)
2685 {
2686         MovieClip *clip;
2687
2688         clip= idbase->first;
2689         while (clip) {
2690                 if (clip->id.us>0 || wd->current) {
2691                         MovieTracking *tracking= &clip->tracking;
2692                         MovieTrackingObject *object;
2693                         writestruct(wd, ID_MC, "MovieClip", 1, clip);
2694
2695                         if (clip->adt)
2696                                 write_animdata(wd, clip->adt);
2697
2698                         write_movieTracks(wd, &tracking->tracks);
2699                         write_movieReconstruction(wd, &tracking->reconstruction);
2700
2701                         object= tracking->objects.first;
2702                         while (object) {
2703                                 writestruct(wd, DATA, "MovieTrackingObject", 1, object);
2704
2705                                 write_movieTracks(wd, &object->tracks);
2706                                 write_movieReconstruction(wd, &object->reconstruction);
2707
2708                                 object= object->next;
2709                         }
2710                 }
2711
2712                 clip= clip->id.next;
2713         }
2714
2715         /* flush helps the compression for undo-save */
2716         mywrite(wd, MYWRITE_FLUSH, 0);
2717 }
2718
2719 /* context is usually defined by WM, two cases where no WM is available:
2720  * - for forward compatibility, curscreen has to be saved
2721  * - for undofile, curscene needs to be saved */
2722 static void write_global(WriteData *wd, int fileflags, Main *mainvar)
2723 {
2724         FileGlobal fg;
2725         bScreen *screen;
2726         char subvstr[8];
2727         
2728         /* prevent mem checkers from complaining */
2729         fg.pads= fg.pad= 0;
2730         memset(fg.filename, 0, sizeof(fg.filename));
2731
2732         current_screen_compat(mainvar, &screen);
2733
2734         /* XXX still remap G */
2735         fg.curscreen= screen;
2736         fg.curscene= screen->scene;
2737         fg.displaymode= G.displaymode;
2738         fg.winpos= G.winpos;
2739
2740         /* prevent to save this, is not good convention, and feature with concerns... */
2741         fg.fileflags= (fileflags & ~(G_FILE_NO_UI|G_FILE_RELATIVE_REMAP|G_FILE_MESH_COMPAT));
2742
2743         fg.globalf= G.f;
2744         BLI_strncpy(fg.filename, mainvar->name, sizeof(fg.filename));
2745
2746         sprintf(subvstr, "%4d", BLENDER_SUBVERSION);
2747         memcpy(fg.subvstr, subvstr, 4);
2748         
2749         fg.subversion= BLENDER_SUBVERSION;
2750         fg.minversion= BLENDER_MINVERSION;
2751         fg.minsubversion= BLENDER_MINSUBVERSION;
2752 #ifdef WITH_BUILDINFO
2753         {
2754                 extern char build_rev[];
2755                 fg.revision= atoi(build_rev);
2756         }
2757 #else
2758         fg.revision= 0;
2759 #endif
2760         writestruct(wd, GLOB, "FileGlobal", 1, &fg);
2761 }
2762
2763 /* preview image, first 2 values are width and height
2764  * second are an RGBA image (unsigned char)
2765  * note, this uses 'TEST' since new types will segfault on file load for older blender versions.
2766  */
2767 static void write_thumb(WriteData *wd, int *img)
2768 {
2769         if (img)
2770                 writedata(wd, TEST, (2 + img[0] * img[1]) * sizeof(int), img);
2771 }
2772
2773 /* if MemFile * there's filesave to memory */
2774 static int write_file_handle(Main *mainvar, int handle, MemFile *compare, MemFile *current, 
2775                                                          int write_user_block, int write_flags, int *thumb)
2776 {
2777         BHead bhead;
2778         ListBase mainlist;
2779         char buf[16];
2780         WriteData *wd;
2781
2782         blo_split_main(&mainlist, mainvar);
2783
2784         wd= bgnwrite(handle, compare, current);
2785
2786 #ifdef USE_BMESH_SAVE_AS_COMPAT
2787         wd->use_mesh_compat = (write_flags & G_FILE_MESH_COMPAT) != 0;
2788 #endif
2789
2790         sprintf(buf, "BLENDER%c%c%.3d", (sizeof(void*)==8)?'-':'_', (ENDIAN_ORDER==B_ENDIAN)?'V':'v', BLENDER_VERSION);
2791         mywrite(wd, buf, 12);
2792
2793         write_renderinfo(wd, mainvar);
2794         write_thumb(wd, thumb);
2795         write_global(wd, write_flags, mainvar);
2796
2797         /* no UI save in undo */
2798         if (current==NULL) {
2799                 write_windowmanagers(wd, &mainvar->wm);
2800                 write_screens  (wd, &mainvar->screen);
2801         }
2802         write_movieclips (wd, &mainvar->movieclip);
2803         write_scenes   (wd, &mainvar->scene);
2804         write_curves   (wd, &mainvar->curve);
2805         write_mballs   (wd, &mainvar->mball);
2806         write_images   (wd, &mainvar->image);
2807         write_cameras  (wd, &mainvar->camera);
2808         write_lamps    (wd, &mainvar->lamp);
2809         write_lattices (wd, &mainvar->latt);
2810         write_vfonts   (wd, &mainvar->vfont);
2811         write_keys     (wd, &mainvar->key);
2812         write_worlds   (wd, &mainvar->world);
2813         write_texts    (wd, &mainvar->text);
2814         write_speakers (wd, &mainvar->speaker);
2815         write_sounds   (wd, &mainvar->sound);
2816         write_groups   (wd, &mainvar->group);
2817         write_armatures(wd, &mainvar->armature);
2818         write_actions  (wd, &mainvar->action);
2819         write_objects  (wd, &mainvar->object);
2820         write_materials(wd, &mainvar->mat);
2821         write_textures (wd, &mainvar->tex);
2822         write_meshs    (wd, &mainvar->mesh);
2823         write_particlesettings(wd, &mainvar->particle);
2824         write_nodetrees(wd, &mainvar->nodetree);
2825         write_brushes  (wd, &mainvar->brush);
2826         write_scripts  (wd, &mainvar->script);
2827         write_gpencils (wd, &mainvar->gpencil);
2828         write_libraries(wd,  mainvar->next);
2829
2830         if (write_user_block) {
2831                 write_userdef(wd);
2832         }
2833                                                         
2834         /* dna as last, because (to be implemented) test for which structs are written */
2835         writedata(wd, DNA1, wd->sdna->datalen, wd->sdna->data);
2836
2837         /* end of file */
2838         memset(&bhead, 0, sizeof(BHead));
2839         bhead.code= ENDB;
2840         mywrite(wd, &bhead, sizeof(BHead));
2841
2842         blo_join_main(&mainlist);
2843
2844         return endwrite(wd);
2845 }
2846
2847 /* do reverse file history: .blend1 -> .blend2, .blend -> .blend1 */
2848 /* return: success(0), failure(1) */
2849 static int do_history(const char *name, ReportList *reports)
2850 {
2851         char tempname1[FILE_MAX], tempname2[FILE_MAX];
2852         int hisnr= U.versions;
2853         
2854         if (U.versions==0) return 0;
2855         if (strlen(name)<2) {
2856                 BKE_report(reports, RPT_ERROR, "Unable to make version backup: filename too short");
2857                 return 1;
2858         }
2859                 
2860         while (hisnr > 1) {
2861                 BLI_snprintf(tempname1, sizeof(tempname1), "%s%d", name, hisnr-1);
2862                 BLI_snprintf(tempname2, sizeof(tempname2), "%s%d", name, hisnr);
2863         
2864                 if (BLI_rename(tempname1, tempname2)) {
2865                         BKE_report(reports, RPT_ERROR, "Unable to make version backup");
2866                         return 1;
2867                 }       
2868                 hisnr--;
2869         }
2870
2871         /* is needed when hisnr==1 */
2872         BLI_snprintf(tempname1, sizeof(tempname1), "%s%d", name, hisnr);
2873
2874         if (BLI_rename(name, tempname1)) {
2875                 BKE_report(reports, RPT_ERROR, "Unable to make version backup");
2876                 return 1;
2877         }
2878
2879         return 0;
2880 }
2881
2882 /* return: success (1) */
2883 int BLO_write_file(Main *mainvar, const char *filepath, int write_flags, ReportList *reports, int *thumb)
2884 {
2885         char userfilename[FILE_MAX];
2886         char tempname[FILE_MAX+1];
2887         int file, err, write_user_block;
2888
2889         /* open temporary file, so we preserve the original in case we crash */
2890         BLI_snprintf(tempname, sizeof(tempname), "%s@", filepath);
2891
2892         file = BLI_open(tempname,O_BINARY+O_WRONLY+O_CREAT+O_TRUNC, 0666);
2893         if (file == -1) {
2894                 BKE_reportf(reports, RPT_ERROR, "Can't open file %s for writing: %s.", tempname, strerror(errno));
2895                 return 0;
2896         }
2897
2898         /* remapping of relative paths to new file location */
2899         if (write_flags & G_FILE_RELATIVE_REMAP) {
2900                 char dir1[FILE_MAX];
2901                 char dir2[FILE_MAX];
2902                 BLI_split_dir_part(filepath, dir1, sizeof(dir1));
2903                 BLI_split_dir_part(mainvar->name, dir2, sizeof(dir2));
2904
2905                 /* just in case there is some subtle difference */
2906                 BLI_cleanup_dir(mainvar->name, dir1);
2907                 BLI_cleanup_dir(mainvar->name, dir2);
2908
2909                 if (BLI_path_cmp(dir1, dir2)==0) {
2910                         write_flags &= ~G_FILE_RELATIVE_REMAP;
2911                 }
2912                 else {
2913                         if (G.relbase_valid) {
2914                                 /* blend may not have been saved before. Tn this case
2915                                  * we should not have any relative paths, but if there
2916                                  * is somehow, an invalid or empty G.main->name it will
2917                                  * print an error, don't try make the absolute in this case. */
2918                                 makeFilesAbsolute(mainvar, G.main->name, NULL);
2919                         }
2920                 }
2921         }
2922
2923         BLI_make_file_string(G.main->name, userfilename, BLI_get_folder_create(BLENDER_USER_CONFIG, NULL), BLENDER_STARTUP_FILE);
2924         write_user_block= (BLI_path_cmp(filepath, userfilename) == 0);
2925
2926         if (write_flags & G_FILE_RELATIVE_REMAP)
2927                 makeFilesRelative(mainvar, filepath, NULL); /* note, making relative to something OTHER then G.main->name */
2928
2929         /* actual file writing */
2930         err= write_file_handle(mainvar, file, NULL,NULL, write_user_block, write_flags, thumb);
2931         close(file);
2932
2933         if (err) {
2934                 BKE_report(reports, RPT_ERROR, strerror(errno));
2935                 remove(tempname);
2936
2937                 return 0;
2938         }
2939
2940         /* file save to temporary file was successful */
2941         /* now do reverse file history (move .blend1 -> .blend2, .blend -> .blend1) */
2942         if (write_flags & G_FILE_HISTORY) { 
2943                 int err_hist = do_history(filepath, reports);
2944                 if (err_hist) {
2945                         BKE_report(reports, RPT_ERROR, "Version backup failed. File saved with @");
2946                         return 0;
2947                 }
2948         }
2949
2950         if (write_flags & G_FILE_COMPRESS) {
2951                 /* compressed files have the same ending as regular files... only from 2.4!!! */
2952                 char gzname[FILE_MAX+4];
2953                 int ret;
2954
2955                 /* first write compressed to separate @.gz */
2956                 BLI_snprintf(gzname, sizeof(gzname), "%s@.gz", filepath);
2957                 ret = BLI_file_gzip(tempname, gzname);
2958                 
2959                 if (0==ret) {
2960                         /* now rename to real file name, and delete temp @ file too */
2961                         if (BLI_rename(gzname, filepath) != 0) {
2962                                 BKE_report(reports, RPT_ERROR, "Can't change old file. File saved with @.");
2963                                 return 0;
2964                         }
2965
2966                         BLI_delete(tempname, 0, 0);
2967                 }
2968                 else if (-1==ret) {
2969                         BKE_report(reports, RPT_ERROR, "Failed opening .gz file.");
2970                         return 0;
2971                 }
2972                 else if (-2==ret) {
2973                         BKE_report(reports, RPT_ERROR, "Failed opening .blend file for compression.");
2974                         return 0;
2975                 }
2976         }
2977         else if (BLI_rename(tempname, filepath) != 0) {
2978                 BKE_report(reports, RPT_ERROR, "Can't change old file. File saved with @");
2979                 return 0;
2980         }
2981
2982         return 1;
2983 }
2984