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