Particle merge: svn merge -r 12653:12664 https://svn.blender.org/svnroot/bf-blender...
[blender-staging.git] / source / blender / blenloader / intern / writefile.c
1 /* writefile.c
2  *
3  * .blend file writing
4  *
5  * $Id$
6  *
7  * ***** BEGIN GPL/BL DUAL LICENSE BLOCK *****
8  *
9  * This program is free software; you can redistribute it and/or
10  * modify it under the terms of the GNU General Public License
11  * as published by the Free Software Foundation; either version 2
12  * of the License, or (at your option) any later version. The Blender
13  * Foundation also sells licenses for use in proprietary software under
14  * the Blender License.  See http://www.blender.org/BL/ for information
15  * about this.
16  *
17  * This program is distributed in the hope that it will be useful,
18  * but WITHOUT ANY WARRANTY; without even the implied warranty of
19  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
20  * GNU General Public License for more details.
21  *
22  * You should have received a copy of the GNU General Public License
23  * along with this program; if not, write to the Free Software Foundation,
24  * Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
25  *
26  * The Original Code is Copyright (C) 2001-2002 by NaN Holding BV.
27  * All rights reserved.
28  *
29  * The Original Code is: all of this file.
30  *
31  * Contributor(s): none yet.
32  *
33  * ***** END GPL/BL DUAL LICENSE BLOCK *****
34  */
35
36 /*
37 FILEFORMAT: IFF-style structure  (but not IFF compatible!)
38
39 start file:
40         BLENDER_V100    12 bytes  (versie 1.00)
41                                         V = big endian, v = little endian
42                                         _ = 4 byte pointer, - = 8 byte pointer
43
44 datablocks:             also see struct BHead
45         <bh.code>                       4 chars
46         <bh.len>                        int,  len data after BHead
47         <bh.old>                        void,  old pointer
48         <bh.SDNAnr>                     int
49         <bh.nr>                         int, in case of array: amount of structs
50         data
51         ...
52         ...
53
54 Almost all data in Blender are structures. Each struct saved
55 gets a BHead header.  With BHead the struct can be linked again
56 and compared with StructDNA .
57
58 WRITE
59
60 Preferred writing order: (not really a must, but why would you do it random?)
61 Any case: direct data is ALWAYS after the lib block
62
63 (Local file data)
64 - for each LibBlock
65         - write LibBlock
66         - write associated direct data
67 (External file data)
68 - per library
69         - write library block
70         - per LibBlock
71                 - write the ID of LibBlock
72 - write FileGlobal (some global vars)
73 - write SDNA
74 - write USER if filename is ~/.B.blend
75 */
76
77 /* for version 2.2+
78 Important to know is that 'streaming' has been added to files, for Blender Publisher
79 */
80
81
82 #ifdef HAVE_CONFIG_H
83 #include <config.h>
84 #endif
85
86 #include "zlib.h"
87
88 #ifndef WIN32
89 #include <unistd.h>
90 #else
91 #include "winsock2.h"
92 #include "BLI_winstuff.h"
93 #include <io.h>
94 #include <process.h> // for getpid
95 #endif
96
97 #include <math.h>
98 #include <fcntl.h>
99 #include <stdio.h>
100 #include <string.h>
101 #include <stdlib.h>
102
103 #include "nla.h" //  __NLA is defined
104
105 #include "DNA_armature_types.h"
106 #include "DNA_action_types.h"
107 #include "DNA_actuator_types.h"
108 #include "DNA_brush_types.h"
109 #include "DNA_camera_types.h"
110 #include "DNA_cloth_types.h"
111 #include "DNA_color_types.h"
112 #include "DNA_constraint_types.h"
113 #include "DNA_controller_types.h"
114 #include "DNA_curve_types.h"
115 #include "DNA_customdata_types.h"
116 #include "DNA_effect_types.h"
117 #include "DNA_group_types.h"
118 #include "DNA_image_types.h"
119 #include "DNA_ipo_types.h"
120 #include "DNA_fileglobal_types.h"
121 #include "DNA_key_types.h"
122 #include "DNA_lattice_types.h"
123 #include "DNA_listBase.h" /* for Listbase, the type of samples, ...*/
124 #include "DNA_lamp_types.h"
125 #include "DNA_meta_types.h"
126 #include "DNA_mesh_types.h"
127 #include "DNA_meshdata_types.h"
128 #include "DNA_material_types.h"
129 #include "DNA_modifier_types.h"
130 #include "DNA_nla_types.h"
131 #include "DNA_node_types.h"
132 #include "DNA_object_types.h"
133 #include "DNA_object_force.h"
134 #include "DNA_oops_types.h"
135 #include "DNA_packedFile_types.h"
136 #include "DNA_particle_types.h"
137 #include "DNA_property_types.h"
138 #include "DNA_scene_types.h"
139 #include "DNA_sdna_types.h"
140 #include "DNA_sequence_types.h"
141 #include "DNA_sensor_types.h"
142 #include "DNA_space_types.h"
143 #include "DNA_screen_types.h"
144 #include "DNA_sound_types.h"
145 #include "DNA_texture_types.h"
146 #include "DNA_text_types.h"
147 #include "DNA_view3d_types.h"
148 #include "DNA_vfont_types.h"
149 #include "DNA_userdef_types.h"
150 #include "DNA_world_types.h"
151
152 #include "MEM_guardedalloc.h" // MEM_freeN
153 #include "BLI_blenlib.h"
154 #include "BLI_linklist.h"
155
156 #include "BKE_action.h"
157 #include "BKE_bad_level_calls.h" // build_seqar (from WHILE_SEQ) free_oops error
158 #include "BKE_blender.h"
159 #include "BKE_cloth.h"
160 #include "BKE_curve.h"
161 #include "BKE_customdata.h"
162 #include "BKE_constraint.h"
163 #include "BKE_global.h" // for G
164 #include "BKE_library.h" // for  set_listbasepointers
165 #include "BKE_main.h" // G.main
166 #include "BKE_node.h"
167 #include "BKE_packedFile.h" // for packAll
168 #include "BKE_screen.h" // for waitcursor
169 #include "BKE_scene.h" // for do_seq
170 #include "BKE_sound.h" /* ... and for samples */
171 #include "BKE_utildefines.h" // for defines
172 #include "BKE_modifier.h"
173 #include "BKE_idprop.h"
174 #ifdef WITH_VERSE
175 #include "BKE_verse.h"
176 #include "BIF_verse.h"
177 #endif
178
179 #include "GEN_messaging.h"
180
181 #include "BLO_writefile.h"
182 #include "BLO_readfile.h"
183 #include "BLO_undofile.h"
184
185 #include "readfile.h"
186 #include "genfile.h"
187
188 #include <errno.h>
189
190 /* ********* my write, buffered writing with minimum 50k chunks ************ */
191
192 typedef struct {
193         struct SDNA *sdna;
194
195         int file;
196         unsigned char *buf;
197         MemFile *compare, *current;
198         
199         int tot, count, error, memsize;
200 } WriteData;
201
202 static WriteData *writedata_new(int file)
203 {
204         extern unsigned char DNAstr[];  /* DNA.c */
205         extern int DNAlen;
206
207         WriteData *wd= MEM_callocN(sizeof(*wd), "writedata");
208
209                 /* XXX, see note about this in readfile.c, remove
210                  * once we have an xp lock - zr
211                  */
212
213         if (wd == NULL) return NULL;
214
215         wd->sdna= dna_sdna_from_data(DNAstr, DNAlen, 0);
216
217         wd->file= file;
218
219         wd->buf= MEM_mallocN(100000, "wd->buf");
220
221         return wd;
222 }
223
224 static void writedata_do_write(WriteData *wd, void *mem, int memlen)
225 {
226         if ((wd == NULL) || wd->error || (mem == NULL) || memlen < 1) return;
227         if (wd->error) return;
228
229         /* memory based save */
230         if(wd->current) {
231                 add_memfilechunk(NULL, wd->current, mem, memlen);
232         }
233         else {
234                 if (write(wd->file, mem, memlen) != memlen)
235                         wd->error= 1;
236                 
237         }
238 }
239
240 static void writedata_free(WriteData *wd)
241 {
242         dna_freestructDNA(wd->sdna);
243
244         MEM_freeN(wd->buf);
245         MEM_freeN(wd);
246 }
247
248 /***/
249
250 int mywfile;
251
252 /**
253  * Low level WRITE(2) wrapper that buffers data
254  * @param adr Pointer to new chunk of data
255  * @param len Length of new chunk of data
256  * @warning Talks to other functions with global parameters
257  */
258  
259 #define MYWRITE_FLUSH   NULL
260
261 static void mywrite( WriteData *wd, void *adr, int len)
262 {
263         if (wd->error) return;
264
265         if(adr==MYWRITE_FLUSH) {
266                 if(wd->count) {
267                         writedata_do_write(wd, wd->buf, wd->count);
268                         wd->count= 0;
269                 }
270                 return;
271         }
272
273         wd->tot+= len;
274         
275         if(len>50000) {
276                 if(wd->count) {
277                         writedata_do_write(wd, wd->buf, wd->count);
278                         wd->count= 0;
279                 }
280                 writedata_do_write(wd, adr, len);
281                 return;
282         }
283         if(len+wd->count>99999) {
284                 writedata_do_write(wd, wd->buf, wd->count);
285                 wd->count= 0;
286         }
287         memcpy(&wd->buf[wd->count], adr, len);
288         wd->count+= len;
289
290 }
291
292 /**
293  * BeGiN initializer for mywrite
294  * @param file File descriptor
295  * @param write_flags Write parameters
296  * @warning Talks to other functions with global parameters
297  */
298 static WriteData *bgnwrite(int file, MemFile *compare, MemFile *current, int write_flags)
299 {
300         WriteData *wd= writedata_new(file);
301
302         if (wd == NULL) return NULL;
303
304         wd->compare= compare;
305         wd->current= current;
306         /* this inits comparing */
307         add_memfilechunk(compare, NULL, NULL, 0);
308         
309         return wd;
310 }
311
312 /**
313  * END the mywrite wrapper
314  * @return 1 if write failed
315  * @return unknown global variable otherwise
316  * @warning Talks to other functions with global parameters
317  */
318 static int endwrite(WriteData *wd)
319 {
320         int err;
321
322         if (wd->count) {
323                 writedata_do_write(wd, wd->buf, wd->count);
324                 wd->count= 0;
325         }
326         
327         err= wd->error;
328         writedata_free(wd);
329
330         return err;
331 }
332
333 /* ********** WRITE FILE ****************** */
334
335 static void writestruct(WriteData *wd, int filecode, char *structname, int nr, void *adr)
336 {
337         BHead bh;
338         short *sp;
339
340         if(adr==NULL || nr==0) return;
341
342         /* init BHead */
343         bh.code= filecode;
344         bh.old= adr;
345         bh.nr= nr;
346
347         bh.SDNAnr= dna_findstruct_nr(wd->sdna, structname);
348         if(bh.SDNAnr== -1) {
349                 printf("error: can't find SDNA code <%s>\n", structname);
350                 return;
351         }
352         sp= wd->sdna->structs[bh.SDNAnr];
353
354         bh.len= nr*wd->sdna->typelens[sp[0]];
355
356         if(bh.len==0) return;
357
358         mywrite(wd, &bh, sizeof(BHead));
359         mywrite(wd, adr, bh.len);
360 }
361
362 static void writedata(WriteData *wd, int filecode, int len, void *adr)  /* do not use for structs */
363 {
364         BHead bh;
365
366         if(adr==0) return;
367         if(len==0) return;
368
369         len+= 3;
370         len-= ( len % 4);
371
372         /* init BHead */
373         bh.code= filecode;
374         bh.old= adr;
375         bh.nr= 1;
376         bh.SDNAnr= 0;
377         bh.len= len;
378
379         mywrite(wd, &bh, sizeof(BHead));
380         if(len) mywrite(wd, adr, len);
381 }
382
383 /* *************** writing some direct data structs used in more code parts **************** */
384 /*These functions are used by blender's .blend system for file saving/loading.*/
385 void IDP_WriteProperty_OnlyData(IDProperty *prop, void *wd);
386 void IDP_WriteProperty(IDProperty *prop, void *wd);
387
388 void IDP_WriteArray(IDProperty *prop, void *wd)
389 {
390         /*REMEMBER to set totalen to len in the linking code!!*/
391         if (prop->data.pointer) {
392                 writedata(wd, DATA, MEM_allocN_len(prop->data.pointer), prop->data.pointer);
393         }
394 }
395
396 void IDP_WriteString(IDProperty *prop, void *wd)
397 {
398         /*REMEMBER to set totalen to len in the linking code!!*/
399         writedata(wd, DATA, prop->len+1, prop->data.pointer);
400 }
401
402 void IDP_WriteGroup(IDProperty *prop, void *wd)
403 {
404         IDProperty *loop;
405
406         for (loop=prop->data.group.first; loop; loop=loop->next) {
407                 IDP_WriteProperty(loop, wd);
408         }
409 }
410
411 /* Functions to read/write ID Properties */
412 void IDP_WriteProperty_OnlyData(IDProperty *prop, void *wd)
413 {
414         switch (prop->type) {
415                 case IDP_GROUP:
416                         IDP_WriteGroup(prop, wd);
417                         break;
418                 case IDP_STRING:
419                         IDP_WriteString(prop, wd);
420                         break;
421                 case IDP_ARRAY:
422                         IDP_WriteArray(prop, wd);
423                         break;
424         }
425 }
426
427 void IDP_WriteProperty(IDProperty *prop, void *wd)
428 {
429         writestruct(wd, DATA, "IDProperty", 1, prop);
430         IDP_WriteProperty_OnlyData(prop, wd);
431 }
432
433 static void write_curvemapping(WriteData *wd, CurveMapping *cumap)
434 {
435         int a;
436         
437         writestruct(wd, DATA, "CurveMapping", 1, cumap);
438         for(a=0; a<CM_TOT; a++)
439                 writestruct(wd, DATA, "CurveMapPoint", cumap->cm[a].totpoint, cumap->cm[a].curve);
440 }
441
442 /* this is only direct data, tree itself should have been written */
443 static void write_nodetree(WriteData *wd, bNodeTree *ntree)
444 {
445         bNode *node;
446         bNodeSocket *sock;
447         bNodeLink *link;
448         
449         /* for link_list() speed, we write per list */
450         
451         for(node= ntree->nodes.first; node; node= node->next)
452                 writestruct(wd, DATA, "bNode", 1, node);
453
454         for(node= ntree->nodes.first; node; node= node->next) {
455                 if(node->storage) {
456                         /* could be handlerized at some point, now only 1 exception still */
457                         if(ntree->type==NTREE_SHADER && (node->type==SH_NODE_CURVE_VEC || node->type==SH_NODE_CURVE_RGB))
458                                 write_curvemapping(wd, node->storage);
459                         else if(ntree->type==NTREE_COMPOSIT && (node->type==CMP_NODE_TIME || node->type==CMP_NODE_CURVE_VEC || node->type==CMP_NODE_CURVE_RGB))
460                                 write_curvemapping(wd, node->storage);
461                         else 
462                                 writestruct(wd, DATA, node->typeinfo->storagename, 1, node->storage);
463                 }
464                 for(sock= node->inputs.first; sock; sock= sock->next)
465                         writestruct(wd, DATA, "bNodeSocket", 1, sock);
466                 for(sock= node->outputs.first; sock; sock= sock->next)
467                         writestruct(wd, DATA, "bNodeSocket", 1, sock);
468         }
469         
470         for(link= ntree->links.first; link; link= link->next)
471                 writestruct(wd, DATA, "bNodeLink", 1, link);
472 }
473
474 static void write_scriptlink(WriteData *wd, ScriptLink *slink)
475 {
476         writedata(wd, DATA, sizeof(void *)*slink->totscript, slink->scripts);
477         writedata(wd, DATA, sizeof(short)*slink->totscript, slink->flag);
478 }
479
480 static void write_renderinfo(WriteData *wd)             /* for renderdeamon */
481 {
482         Scene *sce;
483         int data[8];
484
485         sce= G.main->scene.first;
486         while(sce) {
487                 if(sce->id.lib==0  && ( sce==G.scene || (sce->r.scemode & R_BG_RENDER)) ) {
488                         data[0]= sce->r.sfra;
489                         data[1]= sce->r.efra;
490
491                         memset(data+2, 0, sizeof(int)*6);
492                         strncpy((char *)(data+2), sce->id.name+2, 21);
493
494                         writedata(wd, REND, 32, data);
495                 }
496                 sce= sce->id.next;
497         }
498 }
499
500 static void write_userdef(WriteData *wd)
501 {
502         bTheme *btheme;
503
504         writestruct(wd, USER, "UserDef", 1, &U);
505
506         btheme= U.themes.first;
507         while(btheme) {
508                 writestruct(wd, DATA, "bTheme", 1, btheme);
509                 btheme= btheme->next;
510         }
511 }
512
513 static void write_effects(WriteData *wd, ListBase *lb)
514 {
515         Effect *eff;
516
517         eff= lb->first;
518         while(eff) {
519
520                 switch(eff->type) {
521                 case EFF_PARTICLE:
522                         writestruct(wd, DATA, "PartEff", 1, eff);
523                         break;
524                 default:
525                         writedata(wd, DATA, MEM_allocN_len(eff), eff);
526                 }
527
528                 eff= eff->next;
529         }
530 }
531
532 static void write_particlesettings(WriteData *wd, ListBase *idbase)
533 {
534         ParticleSettings *part;
535
536         part= idbase->first;
537         while(part) {
538                 if(part->id.us>0 || wd->current) {
539                         /* write LibData */
540                         writestruct(wd, ID_PA, "ParticleSettings", 1, part);
541                         writestruct(wd, DATA, "PartDeflect", 1, part->pd);
542                 }
543                 part= part->id.next;
544         }
545 }
546 static void write_particlesystems(WriteData *wd, ListBase *particles)
547 {
548         ParticleSystem *psys= particles->first;
549         int a;
550
551         for(; psys; psys=psys->next) {
552                 writestruct(wd, DATA, "ParticleSystem", 1, psys);
553
554                 if(psys->particles) {
555                         writestruct(wd, DATA, "ParticleData", psys->totpart ,psys->particles);
556
557                         if(psys->particles->hair) {
558                                 ParticleData *pa = psys->particles;
559
560                                 for(a=0; a<psys->totpart; a++, pa++)
561                                         writedata(wd, DATA, MEM_allocN_len(pa->hair),pa->hair);
562                         }
563                 }
564                 if(psys->child) writestruct(wd, DATA, "ChildParticle", psys->totchild ,psys->child);
565                 writestruct(wd, DATA, "SoftBody", 1, psys->soft);
566         }
567 }
568
569 static void write_properties(WriteData *wd, ListBase *lb)
570 {
571         bProperty *prop;
572
573         prop= lb->first;
574         while(prop) {
575                 writestruct(wd, DATA, "bProperty", 1, prop);
576
577                 if(prop->poin && prop->poin != &prop->data)
578                         writedata(wd, DATA, MEM_allocN_len(prop->poin), prop->poin);
579
580                 prop= prop->next;
581         }
582 }
583
584 static void write_sensors(WriteData *wd, ListBase *lb)
585 {
586         bSensor *sens;
587
588         sens= lb->first;
589         while(sens) {
590                 writestruct(wd, DATA, "bSensor", 1, sens);
591
592                 writedata(wd, DATA, sizeof(void *)*sens->totlinks, sens->links);
593
594                 switch(sens->type) {
595                 case SENS_NEAR:
596                         writestruct(wd, DATA, "bNearSensor", 1, sens->data);
597                         break;
598                 case SENS_MOUSE:
599                         writestruct(wd, DATA, "bMouseSensor", 1, sens->data);
600                         break;
601                 case SENS_TOUCH:
602                         writestruct(wd, DATA, "bTouchSensor", 1, sens->data);
603                         break;
604                 case SENS_KEYBOARD:
605                         writestruct(wd, DATA, "bKeyboardSensor", 1, sens->data);
606                         break;
607                 case SENS_PROPERTY:
608                         writestruct(wd, DATA, "bPropertySensor", 1, sens->data);
609                         break;
610                 case SENS_COLLISION:
611                         writestruct(wd, DATA, "bCollisionSensor", 1, sens->data);
612                         break;
613                 case SENS_RADAR:
614                         writestruct(wd, DATA, "bRadarSensor", 1, sens->data);
615                         break;
616                 case SENS_RANDOM:
617                         writestruct(wd, DATA, "bRandomSensor", 1, sens->data);
618                         break;
619                 case SENS_RAY:
620                         writestruct(wd, DATA, "bRaySensor", 1, sens->data);
621                         break;
622                 case SENS_MESSAGE:
623                         writestruct(wd, DATA, "bMessageSensor", 1, sens->data);
624                         break;
625                 case SENS_JOYSTICK:
626                         writestruct(wd, DATA, "bJoystickSensor", 1, sens->data);
627                         break;
628                 default:
629                         ; /* error: don't know how to write this file */
630                 }
631
632                 sens= sens->next;
633         }
634 }
635
636 static void write_controllers(WriteData *wd, ListBase *lb)
637 {
638         bController *cont;
639
640         cont= lb->first;
641         while(cont) {
642                 writestruct(wd, DATA, "bController", 1, cont);
643
644                 writedata(wd, DATA, sizeof(void *)*cont->totlinks, cont->links);
645
646                 switch(cont->type) {
647                 case CONT_EXPRESSION:
648                         writestruct(wd, DATA, "bExpressionCont", 1, cont->data);
649                         break;
650                 case CONT_PYTHON:
651                         writestruct(wd, DATA, "bPythonCont", 1, cont->data);
652                         break;
653                 default:
654                         ; /* error: don't know how to write this file */
655                 }
656
657                 cont= cont->next;
658         }
659 }
660
661 static void write_actuators(WriteData *wd, ListBase *lb)
662 {
663         bActuator *act;
664
665         act= lb->first;
666         while(act) {
667                 writestruct(wd, DATA, "bActuator", 1, act);
668
669                 switch(act->type) {
670                 case ACT_ACTION:
671                         writestruct(wd, DATA, "bActionActuator", 1, act->data);
672                         break;
673                 case ACT_SOUND:
674                         writestruct(wd, DATA, "bSoundActuator", 1, act->data);
675                         break;
676                 case ACT_CD:
677                         writestruct(wd, DATA, "bCDActuator", 1, act->data);
678                         break;
679                 case ACT_OBJECT:
680                         writestruct(wd, DATA, "bObjectActuator", 1, act->data);
681                         break;
682                 case ACT_IPO:
683                         writestruct(wd, DATA, "bIpoActuator", 1, act->data);
684                         break;
685                 case ACT_PROPERTY:
686                         writestruct(wd, DATA, "bPropertyActuator", 1, act->data);
687                         break;
688                 case ACT_CAMERA:
689                         writestruct(wd, DATA, "bCameraActuator", 1, act->data);
690                         break;
691                 case ACT_CONSTRAINT:
692                         writestruct(wd, DATA, "bConstraintActuator", 1, act->data);
693                         break;
694                 case ACT_EDIT_OBJECT:
695                         writestruct(wd, DATA, "bEditObjectActuator", 1, act->data);
696                         break;
697                 case ACT_SCENE:
698                         writestruct(wd, DATA, "bSceneActuator", 1, act->data);
699                         break;
700                 case ACT_GROUP:
701                         writestruct(wd, DATA, "bGroupActuator", 1, act->data);
702                         break;
703                 case ACT_RANDOM:
704                         writestruct(wd, DATA, "bRandomActuator", 1, act->data);
705                         break;
706                 case ACT_MESSAGE:
707                         writestruct(wd, DATA, "bMessageActuator", 1, act->data);
708                         break;
709                 case ACT_GAME:
710                         writestruct(wd, DATA, "bGameActuator", 1, act->data);
711                         break;
712                 case ACT_VISIBILITY:
713                         writestruct(wd, DATA, "bVisibilityActuator", 1, act->data);
714                         break;
715                 default:
716                         ; /* error: don't know how to write this file */
717                 }
718
719                 act= act->next;
720         }
721 }
722
723 static void write_nlastrips(WriteData *wd, ListBase *nlabase)
724 {
725         bActionStrip *strip;
726         bActionModifier *amod;
727         
728         for (strip=nlabase->first; strip; strip=strip->next)
729                 writestruct(wd, DATA, "bActionStrip", 1, strip);
730         for (strip=nlabase->first; strip; strip=strip->next) {
731                 for(amod= strip->modifiers.first; amod; amod= amod->next)
732                         writestruct(wd, DATA, "bActionModifier", 1, amod);
733         }
734 }
735
736 static void write_constraints(WriteData *wd, ListBase *conlist)
737 {
738         bConstraint *con;
739
740         for (con=conlist->first; con; con=con->next) {
741                 bConstraintTypeInfo *cti= constraint_get_typeinfo(con);
742                 
743                 /* Write the specific data */
744                 if (cti && con->data) {
745                         /* firstly, just write the plain con->data struct */
746                         writestruct(wd, DATA, cti->structName, 1, con->data);
747                         
748                         /* do any constraint specific stuff */
749                         switch (con->type) {
750                                 case CONSTRAINT_TYPE_PYTHON:
751                                 {
752                                         bPythonConstraint *data = (bPythonConstraint *)con->data;
753                                         bConstraintTarget *ct;
754                                         
755                                         /* write targets */
756                                         for (ct= data->targets.first; ct; ct= ct->next)
757                                                 writestruct(wd, DATA, "bConstraintTarget", 1, ct);
758                                         
759                                         /* Write ID Properties -- and copy this comment EXACTLY for easy finding
760                                          of library blocks that implement this.*/
761                                         IDP_WriteProperty(data->prop, wd);
762                                 }
763                                 break;
764                         }
765                 }
766                 
767                 /* Write the constraint */
768                 writestruct(wd, DATA, "bConstraint", 1, con);
769         }
770 }
771
772 static void write_pose(WriteData *wd, bPose *pose)
773 {
774         bPoseChannel *chan;
775
776         /* Write each channel */
777         if (!pose)
778                 return;
779
780         /* Write channels */
781         for (chan=pose->chanbase.first; chan; chan=chan->next) {
782                 write_constraints(wd, &chan->constraints);
783                 
784                 /* prevent crashes with autosave, when a bone duplicated in editmode has not yet been assigned to its posechannel */
785                 if (chan->bone) 
786                         chan->selectflag= chan->bone->flag & (BONE_SELECTED|BONE_ACTIVE); /* gets restored on read, for library armatures */
787                 
788                 writestruct(wd, DATA, "bPoseChannel", 1, chan);
789         }
790
791         /* Write this pose */
792         writestruct(wd, DATA, "bPose", 1, pose);
793 }
794
795 static void write_defgroups(WriteData *wd, ListBase *defbase)
796 {
797         bDeformGroup    *defgroup;
798
799         for (defgroup=defbase->first; defgroup; defgroup=defgroup->next)
800                 writestruct(wd, DATA, "bDeformGroup", 1, defgroup);
801 }
802
803 static void write_constraint_channels(WriteData *wd, ListBase *chanbase)
804 {
805         bConstraintChannel *chan;
806
807         for (chan = chanbase->first; chan; chan=chan->next)
808                 writestruct(wd, DATA, "bConstraintChannel", 1, chan);
809
810 }
811
812 static void write_modifiers(WriteData *wd, ListBase *modbase)
813 {
814         ModifierData *md;
815
816         if (modbase == NULL) return;
817         for (md=modbase->first; md; md= md->next) {
818                 ModifierTypeInfo *mti = modifierType_getInfo(md->type);
819                 if (mti == NULL) return;
820                 
821                 writestruct(wd, DATA, mti->structName, 1, md);
822                         
823                 if (md->type==eModifierType_Hook) {
824                         HookModifierData *hmd = (HookModifierData*) md;
825                         
826                         writedata(wd, DATA, sizeof(int)*hmd->totindex, hmd->indexar);
827                 }
828                 else if(md->type==eModifierType_Cloth) {
829                         ClothModifierData *clmd = (ClothModifierData*) md;
830                         writestruct(wd, DATA, "SimulationSettings", 1, clmd->sim_parms);
831                         writestruct(wd, DATA, "CollisionSettings", 1, clmd->coll_parms);
832                 } 
833                 else if (md->type==eModifierType_MeshDeform) {
834                         MeshDeformModifierData *mmd = (MeshDeformModifierData*) md;
835                         int size = mmd->dyngridsize;
836
837                         writedata(wd, DATA, sizeof(float)*mmd->totvert*mmd->totcagevert,
838                                 mmd->bindweights);
839                         writedata(wd, DATA, sizeof(float)*3*mmd->totcagevert,
840                                 mmd->bindcos);
841                         writestruct(wd, DATA, "MDefCell", size*size*size, mmd->dyngrid);
842                         writestruct(wd, DATA, "MDefInfluence", mmd->totinfluence, mmd->dyninfluences);
843                         writedata(wd, DATA, sizeof(int)*mmd->totvert, mmd->dynverts);
844                 }
845         }
846 }
847
848 static void write_objects(WriteData *wd, ListBase *idbase)
849 {
850         Object *ob;
851         
852         ob= idbase->first;
853         while(ob) {
854                 if(ob->id.us>0 || wd->current) {
855                         /* write LibData */
856 #ifdef WITH_VERSE
857                         /* pointer at vnode stored in file have to be NULL */
858                         struct VNode *vnode = (VNode*)ob->vnode;
859                         if(vnode) ob->vnode = NULL;
860 #endif
861                         writestruct(wd, ID_OB, "Object", 1, ob);
862 #ifdef WITH_VERSE
863                         if(vnode) ob->vnode = (void*)vnode;
864 #endif
865
866                         /*Write ID Properties -- and copy this comment EXACTLY for easy finding
867                           of library blocks that implement this.*/
868                         if (ob->id.properties) IDP_WriteProperty(ob->id.properties, wd);
869
870                         /* direct data */
871                         writedata(wd, DATA, sizeof(void *)*ob->totcol, ob->mat);
872                         write_effects(wd, &ob->effect);
873                         write_properties(wd, &ob->prop);
874                         write_sensors(wd, &ob->sensors);
875                         write_controllers(wd, &ob->controllers);
876                         write_actuators(wd, &ob->actuators);
877                         write_scriptlink(wd, &ob->scriptlink);
878                         write_pose(wd, ob->pose);
879                         write_defgroups(wd, &ob->defbase);
880                         write_constraints(wd, &ob->constraints);
881                         write_constraint_channels(wd, &ob->constraintChannels);
882                         write_nlastrips(wd, &ob->nlastrips);
883                         
884                         writestruct(wd, DATA, "PartDeflect", 1, ob->pd);
885                         writestruct(wd, DATA, "SoftBody", 1, ob->soft);
886                         writestruct(wd, DATA, "FluidsimSettings", 1, ob->fluidsimSettings); // NT
887                         
888                         write_particlesystems(wd, &ob->particlesystem);
889                         write_modifiers(wd, &ob->modifiers);
890                 }
891                 ob= ob->id.next;
892         }
893
894         /* flush helps the compression for undo-save */
895         mywrite(wd, MYWRITE_FLUSH, 0);
896 }
897
898
899 static void write_vfonts(WriteData *wd, ListBase *idbase)
900 {
901         VFont *vf;
902         PackedFile * pf;
903
904         vf= idbase->first;
905         while(vf) {
906                 if(vf->id.us>0 || wd->current) {
907                         /* write LibData */
908                         writestruct(wd, ID_VF, "VFont", 1, vf);
909                         if (vf->id.properties) IDP_WriteProperty(vf->id.properties, wd);
910
911                         /* direct data */
912
913                         if (vf->packedfile) {
914                                 pf = vf->packedfile;
915                                 writestruct(wd, DATA, "PackedFile", 1, pf);
916                                 writedata(wd, DATA, pf->size, pf->data);
917                         }
918                 }
919
920                 vf= vf->id.next;
921         }
922 }
923
924 static void write_ipos(WriteData *wd, ListBase *idbase)
925 {
926         Ipo *ipo;
927         IpoCurve *icu;
928
929         ipo= idbase->first;
930         while(ipo) {
931                 if(ipo->id.us>0 || wd->current) {
932                         /* write LibData */
933                         writestruct(wd, ID_IP, "Ipo", 1, ipo);
934                         if (ipo->id.properties) IDP_WriteProperty(ipo->id.properties, wd);
935
936                         /* direct data */
937                         icu= ipo->curve.first;
938                         while(icu) {
939                                 writestruct(wd, DATA, "IpoCurve", 1, icu);
940                                 icu= icu->next;
941                         }
942
943                         icu= ipo->curve.first;
944                         while(icu) {
945                                 if(icu->bezt)  writestruct(wd, DATA, "BezTriple", icu->totvert, icu->bezt);
946                                 if(icu->bp)  writestruct(wd, DATA, "BPoint", icu->totvert, icu->bp);
947                                 if(icu->driver)  writestruct(wd, DATA, "IpoDriver", 1, icu->driver);
948                                 icu= icu->next;
949                         }
950                 }
951
952                 ipo= ipo->id.next;
953         }
954
955         /* flush helps the compression for undo-save */
956         mywrite(wd, MYWRITE_FLUSH, 0);
957 }
958
959 static void write_keys(WriteData *wd, ListBase *idbase)
960 {
961         Key *key;
962         KeyBlock *kb;
963
964         key= idbase->first;
965         while(key) {
966                 if(key->id.us>0 || wd->current) {
967                         /* write LibData */
968                         writestruct(wd, ID_KE, "Key", 1, key);
969                         if (key->id.properties) IDP_WriteProperty(key->id.properties, wd);
970
971                         /* direct data */
972                         kb= key->block.first;
973                         while(kb) {
974                                 writestruct(wd, DATA, "KeyBlock", 1, kb);
975                                 if(kb->data) writedata(wd, DATA, kb->totelem*key->elemsize, kb->data);
976                                 kb= kb->next;
977                         }
978                 }
979
980                 key= key->id.next;
981         }
982         /* flush helps the compression for undo-save */
983         mywrite(wd, MYWRITE_FLUSH, 0);
984 }
985
986 static void write_cameras(WriteData *wd, ListBase *idbase)
987 {
988         Camera *cam;
989
990         cam= idbase->first;
991         while(cam) {
992                 if(cam->id.us>0 || wd->current) {
993                         /* write LibData */
994                         writestruct(wd, ID_CA, "Camera", 1, cam);
995                         if (cam->id.properties) IDP_WriteProperty(cam->id.properties, wd);
996
997                         /* direct data */
998                         write_scriptlink(wd, &cam->scriptlink);
999                 }
1000
1001                 cam= cam->id.next;
1002         }
1003 }
1004
1005 static void write_mballs(WriteData *wd, ListBase *idbase)
1006 {
1007         MetaBall *mb;
1008         MetaElem *ml;
1009
1010         mb= idbase->first;
1011         while(mb) {
1012                 if(mb->id.us>0 || wd->current) {
1013                         /* write LibData */
1014                         writestruct(wd, ID_MB, "MetaBall", 1, mb);
1015                         if (mb->id.properties) IDP_WriteProperty(mb->id.properties, wd);
1016
1017                         /* direct data */
1018                         writedata(wd, DATA, sizeof(void *)*mb->totcol, mb->mat);
1019
1020                         ml= mb->elems.first;
1021                         while(ml) {
1022                                 writestruct(wd, DATA, "MetaElem", 1, ml);
1023                                 ml= ml->next;
1024                         }
1025                 }
1026                 mb= mb->id.next;
1027         }
1028 }
1029
1030 int amount_of_chars(char *str)
1031 {
1032         // Since the data is saved as UTF-8 to the cu->str
1033         // The cu->len is not same as the strlen(cu->str)
1034         return strlen(str);
1035 }
1036
1037 static void write_curves(WriteData *wd, ListBase *idbase)
1038 {
1039         Curve *cu;
1040         Nurb *nu;
1041
1042         cu= idbase->first;
1043         while(cu) {
1044                 if(cu->id.us>0 || wd->current) {
1045                         /* write LibData */
1046                         writestruct(wd, ID_CU, "Curve", 1, cu);
1047
1048                         /* direct data */
1049                         writedata(wd, DATA, sizeof(void *)*cu->totcol, cu->mat);
1050                         if (cu->id.properties) IDP_WriteProperty(cu->id.properties, wd);
1051
1052                         if(cu->vfont) {
1053                                 writedata(wd, DATA, amount_of_chars(cu->str)+1, cu->str);
1054                                 writestruct(wd, DATA, "CharInfo", cu->len, cu->strinfo);
1055                                 writestruct(wd, DATA, "TextBox", cu->totbox, cu->tb);                           
1056                         }
1057                         else {
1058                                 /* is also the order of reading */
1059                                 nu= cu->nurb.first;
1060                                 while(nu) {
1061                                         writestruct(wd, DATA, "Nurb", 1, nu);
1062                                         nu= nu->next;
1063                                 }
1064                                 nu= cu->nurb.first;
1065                                 while(nu) {
1066                                         if( (nu->type & 7)==CU_BEZIER)
1067                                                 writestruct(wd, DATA, "BezTriple", nu->pntsu, nu->bezt);
1068                                         else {
1069                                                 writestruct(wd, DATA, "BPoint", nu->pntsu*nu->pntsv, nu->bp);
1070                                                 if(nu->knotsu) writedata(wd, DATA, KNOTSU(nu)*sizeof(float), nu->knotsu);
1071                                                 if(nu->knotsv) writedata(wd, DATA, KNOTSV(nu)*sizeof(float), nu->knotsv);
1072                                         }
1073                                         nu= nu->next;
1074                                 }
1075                         }
1076                 }
1077                 cu= cu->id.next;
1078         }
1079
1080         /* flush helps the compression for undo-save */
1081         mywrite(wd, MYWRITE_FLUSH, 0);
1082 }
1083
1084 static void write_dverts(WriteData *wd, int count, MDeformVert *dvlist)
1085 {
1086         if (dvlist) {
1087                 int     i;
1088                 
1089                 /* Write the dvert list */
1090                 writestruct(wd, DATA, "MDeformVert", count, dvlist);
1091                 
1092                 /* Write deformation data for each dvert */
1093                 for (i=0; i<count; i++) {
1094                         if (dvlist[i].dw)
1095                                 writestruct(wd, DATA, "MDeformWeight", dvlist[i].totweight, dvlist[i].dw);
1096                 }
1097         }
1098 }
1099
1100 static void write_customdata(WriteData *wd, int count, CustomData *data, int partial_type, int partial_count)
1101 {
1102         int i;
1103
1104         writestruct(wd, DATA, "CustomDataLayer", data->maxlayer, data->layers);
1105
1106         for (i=0; i<data->totlayer; i++) {
1107                 CustomDataLayer *layer= &data->layers[i];
1108                 char *structname;
1109                 int structnum, datasize;
1110
1111                 if (layer->type == CD_MDEFORMVERT) {
1112                         /* layer types that allocate own memory need special handling */
1113                         write_dverts(wd, count, layer->data);
1114                 }
1115                 else {
1116                         CustomData_file_write_info(layer->type, &structname, &structnum);
1117                         if (structnum) {
1118                                 /* when using partial visibility, the MEdge and MFace layers
1119                                    are smaller than the original, so their type and count is
1120                                    passed to make this work */
1121                                 if (layer->type != partial_type) datasize= structnum*count;
1122                                 else datasize= structnum*partial_count;
1123
1124                                 writestruct(wd, DATA, structname, datasize, layer->data);
1125                         }
1126                         else
1127                                 printf("error: this CustomDataLayer must not be written to file\n");
1128                 }
1129         }
1130 }
1131
1132 static void write_meshs(WriteData *wd, ListBase *idbase)
1133 {
1134         Mesh *mesh;
1135         MultiresLevel *lvl;
1136
1137         mesh= idbase->first;
1138         while(mesh) {
1139                 if(mesh->id.us>0 || wd->current) {
1140                         /* write LibData */
1141 #ifdef WITH_VERSE
1142                         struct VNode *vnode = (VNode*)mesh->vnode;
1143                         if(vnode) {
1144                                 /* mesh has to be created from verse geometry node*/
1145                                 create_meshdata_from_geom_node(mesh, vnode);
1146                                 /* pointer at verse node can't be stored in file */
1147                                 mesh->vnode = NULL;
1148                         }
1149 #endif
1150
1151                         writestruct(wd, ID_ME, "Mesh", 1, mesh);
1152 #ifdef WITH_VERSE
1153                         if(vnode) mesh->vnode = (void*)vnode;
1154 #endif
1155
1156                         /* direct data */
1157                         if (mesh->id.properties) IDP_WriteProperty(mesh->id.properties, wd);
1158
1159                         writedata(wd, DATA, sizeof(void *)*mesh->totcol, mesh->mat);
1160
1161                         if(mesh->pv) {
1162                                 write_customdata(wd, mesh->pv->totvert, &mesh->vdata, -1, 0);
1163                                 write_customdata(wd, mesh->pv->totedge, &mesh->edata,
1164                                         CD_MEDGE, mesh->totedge);
1165                                 write_customdata(wd, mesh->pv->totface, &mesh->fdata,
1166                                         CD_MFACE, mesh->totface);
1167                         }
1168                         else {
1169                                 write_customdata(wd, mesh->totvert, &mesh->vdata, -1, 0);
1170                                 write_customdata(wd, mesh->totedge, &mesh->edata, -1, 0);
1171                                 write_customdata(wd, mesh->totface, &mesh->fdata, -1, 0);
1172                         }
1173
1174                         /* Multires data */
1175                         writestruct(wd, DATA, "Multires", 1, mesh->mr);
1176                         if(mesh->mr) {
1177                                 lvl= mesh->mr->levels.first;
1178                                 if(lvl) {
1179                                         write_customdata(wd, lvl->totvert, &mesh->mr->vdata, -1, 0);
1180                                         write_customdata(wd, lvl->totface, &mesh->mr->fdata, -1, 0);
1181                                         writedata(wd, DATA, sizeof(short)*lvl->totedge, mesh->mr->edge_flags);
1182                                         writedata(wd, DATA, sizeof(char)*lvl->totedge, mesh->mr->edge_creases);
1183                                 }
1184
1185                                 for(; lvl; lvl= lvl->next) {
1186                                         writestruct(wd, DATA, "MultiresLevel", 1, lvl);
1187                                         writestruct(wd, DATA, "MultiresFace", lvl->totface, lvl->faces);
1188                                         writestruct(wd, DATA, "MultiresEdge", lvl->totedge, lvl->edges);
1189                                         writestruct(wd, DATA, "MultiresColFace", lvl->totface, lvl->colfaces);
1190                                 }
1191
1192                                 lvl= mesh->mr->levels.last;
1193                                 if(lvl)
1194                                         writestruct(wd, DATA, "MVert", lvl->totvert, mesh->mr->verts);
1195                         }
1196
1197                         /* PMV data */
1198                         if(mesh->pv) {
1199                                 writestruct(wd, DATA, "PartialVisibility", 1, mesh->pv);
1200                                 writedata(wd, DATA, sizeof(unsigned int)*mesh->pv->totvert, mesh->pv->vert_map);
1201                                 writedata(wd, DATA, sizeof(int)*mesh->pv->totedge, mesh->pv->edge_map);
1202                                 writestruct(wd, DATA, "MFace", mesh->pv->totface, mesh->pv->old_faces);
1203                                 writestruct(wd, DATA, "MEdge", mesh->pv->totedge, mesh->pv->old_edges);
1204                         }
1205                 }
1206                 mesh= mesh->id.next;
1207         }
1208 }
1209
1210 static void write_lattices(WriteData *wd, ListBase *idbase)
1211 {
1212         Lattice *lt;
1213         
1214         lt= idbase->first;
1215         while(lt) {
1216                 if(lt->id.us>0 || wd->current) {
1217                         /* write LibData */
1218                         writestruct(wd, ID_LT, "Lattice", 1, lt);
1219                         if (lt->id.properties) IDP_WriteProperty(lt->id.properties, wd);
1220
1221                         /* direct data */
1222                         writestruct(wd, DATA, "BPoint", lt->pntsu*lt->pntsv*lt->pntsw, lt->def);
1223                         
1224                         write_dverts(wd, lt->pntsu*lt->pntsv*lt->pntsw, lt->dvert);
1225                         
1226                 }
1227                 lt= lt->id.next;
1228         }
1229 }
1230
1231 static void write_previews(WriteData *wd, PreviewImage *prv)
1232 {
1233         if (prv) {
1234                 short w = prv->w[1];
1235                 short h = prv->h[1];
1236                 unsigned int *rect = prv->rect[1];
1237                 /* don't write out large previews if not requested */
1238                 if (!(U.flag & USER_SAVE_PREVIEWS) ) {
1239                         prv->w[1] = 0;
1240                         prv->h[1] = 0;
1241                         prv->rect[1] = NULL;
1242                 }
1243                 writestruct(wd, DATA, "PreviewImage", 1, prv);
1244                 if (prv->rect[0]) writedata(wd, DATA, prv->w[0]*prv->h[0]*sizeof(unsigned int), prv->rect[0]);
1245                 if (prv->rect[1]) writedata(wd, DATA, prv->w[1]*prv->h[1]*sizeof(unsigned int), prv->rect[1]);
1246
1247                 /* restore preview, we still want to keep it in memory even if not saved to file */
1248                 if (!(U.flag & USER_SAVE_PREVIEWS) ) {
1249                         prv->w[1] = w;
1250                         prv->h[1] = h;
1251                         prv->rect[1] = rect;
1252                 }
1253         }
1254 }
1255
1256 static void write_images(WriteData *wd, ListBase *idbase)
1257 {
1258         Image *ima;
1259         PackedFile * pf;
1260
1261
1262         ima= idbase->first;
1263         while(ima) {
1264                 if(ima->id.us>0 || wd->current) {
1265                         /* write LibData */
1266                         writestruct(wd, ID_IM, "Image", 1, ima);
1267                         if (ima->id.properties) IDP_WriteProperty(ima->id.properties, wd);
1268
1269                         if (ima->packedfile) {
1270                                 pf = ima->packedfile;
1271                                 writestruct(wd, DATA, "PackedFile", 1, pf);
1272                                 writedata(wd, DATA, pf->size, pf->data);
1273                         }
1274
1275                         write_previews(wd, ima->preview);
1276
1277                         }
1278                 ima= ima->id.next;
1279         }
1280         /* flush helps the compression for undo-save */
1281         mywrite(wd, MYWRITE_FLUSH, 0);
1282 }
1283
1284 static void write_textures(WriteData *wd, ListBase *idbase)
1285 {
1286         Tex *tex;
1287
1288         tex= idbase->first;
1289         while(tex) {
1290                 if(tex->id.us>0 || wd->current) {
1291                         /* write LibData */
1292                         writestruct(wd, ID_TE, "Tex", 1, tex);
1293                         if (tex->id.properties) IDP_WriteProperty(tex->id.properties, wd);
1294
1295                         /* direct data */
1296                         if(tex->plugin) writestruct(wd, DATA, "PluginTex", 1, tex->plugin);
1297                         if(tex->coba) writestruct(wd, DATA, "ColorBand", 1, tex->coba);
1298                         if(tex->env) writestruct(wd, DATA, "EnvMap", 1, tex->env);
1299                         
1300                         write_previews(wd, tex->preview);
1301                 }
1302                 tex= tex->id.next;
1303         }
1304
1305         /* flush helps the compression for undo-save */
1306         mywrite(wd, MYWRITE_FLUSH, 0);
1307 }
1308
1309 static void write_materials(WriteData *wd, ListBase *idbase)
1310 {
1311         Material *ma;
1312         int a;
1313
1314         ma= idbase->first;
1315         while(ma) {
1316                 if(ma->id.us>0 || wd->current) {
1317                         /* write LibData */
1318                         writestruct(wd, ID_MA, "Material", 1, ma);
1319                         
1320                         /*Write ID Properties -- and copy this comment EXACTLY for easy finding
1321                           of library blocks that implement this.*/
1322                         /*manually set head group property to IDP_GROUP, just in case it hadn't been
1323                           set yet :) */
1324                         if (ma->id.properties) IDP_WriteProperty(ma->id.properties, wd);
1325
1326                         for(a=0; a<MAX_MTEX; a++) {
1327                                 if(ma->mtex[a]) writestruct(wd, DATA, "MTex", 1, ma->mtex[a]);
1328                         }
1329                         
1330                         if(ma->ramp_col) writestruct(wd, DATA, "ColorBand", 1, ma->ramp_col);
1331                         if(ma->ramp_spec) writestruct(wd, DATA, "ColorBand", 1, ma->ramp_spec);
1332                         
1333                         write_scriptlink(wd, &ma->scriptlink);
1334                         
1335                         /* nodetree is integral part of material, no libdata */
1336                         if(ma->nodetree) {
1337                                 writestruct(wd, DATA, "bNodeTree", 1, ma->nodetree);
1338                                 write_nodetree(wd, ma->nodetree);
1339                         }
1340
1341                         write_previews(wd, ma->preview);                        
1342                 }
1343                 ma= ma->id.next;
1344         }
1345 }
1346
1347 static void write_worlds(WriteData *wd, ListBase *idbase)
1348 {
1349         World *wrld;
1350         int a;
1351
1352         wrld= idbase->first;
1353         while(wrld) {
1354                 if(wrld->id.us>0 || wd->current) {
1355                         /* write LibData */
1356                         writestruct(wd, ID_WO, "World", 1, wrld);
1357                         if (wrld->id.properties) IDP_WriteProperty(wrld->id.properties, wd);
1358
1359                         for(a=0; a<MAX_MTEX; a++) {
1360                                 if(wrld->mtex[a]) writestruct(wd, DATA, "MTex", 1, wrld->mtex[a]);
1361                         }
1362
1363                         write_scriptlink(wd, &wrld->scriptlink);
1364
1365                         write_previews(wd, wrld->preview);
1366
1367                 }
1368                 wrld= wrld->id.next;
1369         }
1370 }
1371
1372 static void write_lamps(WriteData *wd, ListBase *idbase)
1373 {
1374         Lamp *la;
1375         int a;
1376
1377         la= idbase->first;
1378         while(la) {
1379                 if(la->id.us>0 || wd->current) {
1380                         /* write LibData */
1381                         writestruct(wd, ID_LA, "Lamp", 1, la);
1382                         if (la->id.properties) IDP_WriteProperty(la->id.properties, wd);
1383
1384                         /* direct data */
1385                         for(a=0; a<MAX_MTEX; a++) {
1386                                 if(la->mtex[a]) writestruct(wd, DATA, "MTex", 1, la->mtex[a]);
1387                         }
1388
1389                         if(la->curfalloff)
1390                                 write_curvemapping(wd, la->curfalloff); 
1391                         
1392                         write_scriptlink(wd, &la->scriptlink);
1393
1394                         write_previews(wd, la->preview);
1395
1396                 }
1397                 la= la->id.next;
1398         }
1399 }
1400
1401
1402 static void write_scenes(WriteData *wd, ListBase *scebase)
1403 {
1404         Scene *sce;
1405         Base *base;
1406         Editing *ed;
1407         Sequence *seq;
1408         MetaStack *ms;
1409         Strip *strip;
1410         TimeMarker *marker;
1411         SceneRenderLayer *srl;
1412         int a;
1413         
1414         sce= scebase->first;
1415         while(sce) {
1416                 /* write LibData */
1417                 writestruct(wd, ID_SCE, "Scene", 1, sce);
1418                 if (sce->id.properties) IDP_WriteProperty(sce->id.properties, wd);
1419
1420                 /* direct data */
1421                 base= sce->base.first;
1422                 while(base) {
1423                         writestruct(wd, DATA, "Base", 1, base);
1424                         base= base->next;
1425                 }
1426
1427                 writestruct(wd, DATA, "Radio", 1, sce->radio);
1428                 writestruct(wd, DATA, "ToolSettings", 1, sce->toolsettings);
1429
1430                 for(a=0; a<MAX_MTEX; ++a)
1431                         writestruct(wd, DATA, "MTex", 1, sce->sculptdata.mtex[a]);
1432
1433                 ed= sce->ed;
1434                 if(ed) {
1435                         writestruct(wd, DATA, "Editing", 1, ed);
1436
1437                         /* reset write flags too */
1438                         WHILE_SEQ(&ed->seqbase) {
1439                                 if(seq->strip) seq->strip->done= 0;
1440                                 writestruct(wd, DATA, "Sequence", 1, seq);
1441                         }
1442                         END_SEQ
1443
1444                         WHILE_SEQ(&ed->seqbase) {
1445                                 if(seq->strip && seq->strip->done==0) {
1446                                         /* write strip with 'done' at 0 because readfile */
1447
1448                                         if(seq->plugin) writestruct(wd, DATA, "PluginSeq", 1, seq->plugin);
1449                                         if(seq->effectdata) {
1450                                                 switch(seq->type){
1451                                                 case SEQ_COLOR:
1452                                                         writestruct(wd, DATA, "SolidColorVars", 1, seq->effectdata);
1453                                                         break;
1454                                                 case SEQ_SPEED:
1455                                                         writestruct(wd, DATA, "SpeedControlVars", 1, seq->effectdata);
1456                                                         break;
1457                                                 case SEQ_WIPE:
1458                                                         writestruct(wd, DATA, "WipeVars", 1, seq->effectdata);
1459                                                         break;
1460                                                 case SEQ_GLOW:
1461                                                         writestruct(wd, DATA, "GlowVars", 1, seq->effectdata);
1462                                                         break;
1463                                                 case SEQ_TRANSFORM:
1464                                                         writestruct(wd, DATA, "TransformVars", 1, seq->effectdata);
1465                                                         break;
1466                                                 }
1467                                         }
1468
1469                                         strip= seq->strip;
1470                                         writestruct(wd, DATA, "Strip", 1, strip);
1471
1472                                         if(seq->type==SEQ_IMAGE)
1473                                                 writestruct(wd, DATA, "StripElem", strip->len, strip->stripdata);
1474                                         else if(seq->type==SEQ_MOVIE || seq->type==SEQ_RAM_SOUND || seq->type == SEQ_HD_SOUND)
1475                                                 writestruct(wd, DATA, "StripElem", 1, strip->stripdata);
1476
1477                                         strip->done= 1;
1478                                 }
1479                         }
1480                         END_SEQ
1481                                 
1482                         /* new; meta stack too, even when its nasty restore code */
1483                         for(ms= ed->metastack.first; ms; ms= ms->next) {
1484                                 writestruct(wd, DATA, "MetaStack", 1, ms);
1485                         }
1486                 }
1487
1488                 write_scriptlink(wd, &sce->scriptlink);
1489
1490                 if (sce->r.avicodecdata) {
1491                         writestruct(wd, DATA, "AviCodecData", 1, sce->r.avicodecdata);
1492                         if (sce->r.avicodecdata->lpFormat) writedata(wd, DATA, sce->r.avicodecdata->cbFormat, sce->r.avicodecdata->lpFormat);
1493                         if (sce->r.avicodecdata->lpParms) writedata(wd, DATA, sce->r.avicodecdata->cbParms, sce->r.avicodecdata->lpParms);
1494                 }
1495
1496                 if (sce->r.qtcodecdata) {
1497                         writestruct(wd, DATA, "QuicktimeCodecData", 1, sce->r.qtcodecdata);
1498                         if (sce->r.qtcodecdata->cdParms) writedata(wd, DATA, sce->r.qtcodecdata->cdSize, sce->r.qtcodecdata->cdParms);
1499                 }
1500
1501                 /* writing dynamic list of TimeMarkers to the blend file */
1502                 for(marker= sce->markers.first; marker; marker= marker->next)
1503                         writestruct(wd, DATA, "TimeMarker", 1, marker);
1504                 
1505                 for(srl= sce->r.layers.first; srl; srl= srl->next)
1506                         writestruct(wd, DATA, "SceneRenderLayer", 1, srl);
1507                 
1508                 if(sce->nodetree) {
1509                         writestruct(wd, DATA, "bNodeTree", 1, sce->nodetree);
1510                         write_nodetree(wd, sce->nodetree);
1511                 }
1512                 
1513                 sce= sce->id.next;
1514         }
1515         /* flush helps the compression for undo-save */
1516         mywrite(wd, MYWRITE_FLUSH, 0);
1517 }
1518
1519 static void write_screens(WriteData *wd, ListBase *scrbase)
1520 {
1521         bScreen *sc;
1522         ScrArea *sa;
1523         ScrVert *sv;
1524         ScrEdge *se;
1525
1526         sc= scrbase->first;
1527         while(sc) {
1528                 /* write LibData */
1529                 writestruct(wd, ID_SCR, "Screen", 1, sc);
1530                 if (sc->id.properties) IDP_WriteProperty(sc->id.properties, wd);
1531
1532                 /* direct data */
1533                 sv= sc->vertbase.first;
1534                 while(sv) {
1535                         writestruct(wd, DATA, "ScrVert", 1, sv);
1536                         sv= sv->next;
1537                 }
1538
1539                 se= sc->edgebase.first;
1540                 while(se) {
1541                         writestruct(wd, DATA, "ScrEdge", 1, se);
1542                         se= se->next;
1543                 }
1544
1545                 sa= sc->areabase.first;
1546                 while(sa) {
1547                         SpaceLink *sl;
1548                         Panel *pa;
1549
1550                         writestruct(wd, DATA, "ScrArea", 1, sa);
1551
1552                         pa= sa->panels.first;
1553                         while(pa) {
1554                                 writestruct(wd, DATA, "Panel", 1, pa);
1555                                 pa= pa->next;
1556                         }
1557
1558                         /* space handler scriptlinks */
1559                         write_scriptlink(wd, &sa->scriptlink);
1560
1561                         sl= sa->spacedata.first;
1562                         while(sl) {
1563                                 if(sl->spacetype==SPACE_VIEW3D) {
1564                                         View3D *v3d= (View3D*) sl;
1565                                         writestruct(wd, DATA, "View3D", 1, v3d);
1566                                         if(v3d->bgpic) writestruct(wd, DATA, "BGpic", 1, v3d->bgpic);
1567                                         if(v3d->localvd) writestruct(wd, DATA, "View3D", 1, v3d->localvd);
1568                                         if(v3d->clipbb) writestruct(wd, DATA, "BoundBox", 1, v3d->clipbb);
1569                                 }
1570                                 else if(sl->spacetype==SPACE_IPO) {
1571                                         writestruct(wd, DATA, "SpaceIpo", 1, sl);
1572                                 }
1573                                 else if(sl->spacetype==SPACE_BUTS) {
1574                                         writestruct(wd, DATA, "SpaceButs", 1, sl);
1575                                 }
1576                                 else if(sl->spacetype==SPACE_FILE) {
1577                                         writestruct(wd, DATA, "SpaceFile", 1, sl);
1578                                 }
1579                                 else if(sl->spacetype==SPACE_SEQ) {
1580                                         writestruct(wd, DATA, "SpaceSeq", 1, sl);
1581                                 }
1582                                 else if(sl->spacetype==SPACE_OOPS) {
1583                                         SpaceOops *so= (SpaceOops *)sl;
1584                                         Oops *oops;
1585
1586                                         /* cleanup */
1587                                         oops= so->oops.first;
1588                                         while(oops) {
1589                                                 Oops *oopsn= oops->next;
1590                                                 if(oops->id==0) {
1591                                                         BLI_remlink(&so->oops, oops);
1592                                                         free_oops(oops);
1593                                                 }
1594                                                 oops= oopsn;
1595                                         }
1596
1597                                         /* ater cleanup, because of listbase! */
1598                                         writestruct(wd, DATA, "SpaceOops", 1, so);
1599
1600                                         oops= so->oops.first;
1601                                         while(oops) {
1602                                                 writestruct(wd, DATA, "Oops", 1, oops);
1603                                                 oops= oops->next;
1604                                         }
1605                                         /* outliner */
1606                                         if(so->treestore) {
1607                                                 writestruct(wd, DATA, "TreeStore", 1, so->treestore);
1608                                                 if(so->treestore->data)
1609                                                         writestruct(wd, DATA, "TreeStoreElem", so->treestore->usedelem, so->treestore->data);
1610                                         }
1611                                 }
1612                                 else if(sl->spacetype==SPACE_IMAGE) {
1613                                         SpaceImage *sima= (SpaceImage *)sl;
1614                                         
1615                                         writestruct(wd, DATA, "SpaceImage", 1, sl);
1616                                         if(sima->cumap)
1617                                                 write_curvemapping(wd, sima->cumap);                                    
1618                                 }
1619                                 else if(sl->spacetype==SPACE_IMASEL) {
1620                                         writestruct(wd, DATA, "SpaceImaSel", 1, sl);
1621                                 }
1622                                 else if(sl->spacetype==SPACE_TEXT) {
1623                                         writestruct(wd, DATA, "SpaceText", 1, sl);
1624                                 }
1625                                 else if(sl->spacetype==SPACE_SCRIPT) {
1626                                         SpaceScript *sc = (SpaceScript*)sl;
1627                                         sc->but_refs = NULL;
1628                                         writestruct(wd, DATA, "SpaceScript", 1, sl);
1629                                 }
1630                                 else if(sl->spacetype==SPACE_ACTION) {
1631                                         writestruct(wd, DATA, "SpaceAction", 1, sl);
1632                                 }
1633                                 else if(sl->spacetype==SPACE_SOUND) {
1634                                         writestruct(wd, DATA, "SpaceSound", 1, sl);
1635                                 }
1636                                 else if(sl->spacetype==SPACE_NLA){
1637                                         writestruct(wd, DATA, "SpaceNla", 1, sl);
1638                                 }
1639                                 else if(sl->spacetype==SPACE_TIME){
1640                                         writestruct(wd, DATA, "SpaceTime", 1, sl);
1641                                 }
1642                                 else if(sl->spacetype==SPACE_NODE){
1643                                         writestruct(wd, DATA, "SpaceNode", 1, sl);
1644                                 }
1645                                 sl= sl->next;
1646                         }
1647
1648                         sa= sa->next;
1649                 }
1650
1651                 sc= sc->id.next;
1652         }
1653 }
1654
1655 static void write_libraries(WriteData *wd, Main *main)
1656 {
1657         ListBase *lbarray[30];
1658         ID *id;
1659         int a, tot, foundone;
1660
1661         for(; main; main= main->next) {
1662
1663                 a=tot= set_listbasepointers(main, lbarray);
1664
1665                 /* test: is lib being used */
1666                 foundone= 0;
1667                 while(tot--) {
1668                         for(id= lbarray[tot]->first; id; id= id->next) {
1669                                 if(id->us>0 && (id->flag & LIB_EXTERN)) {
1670                                         foundone= 1;
1671                                         break;
1672                                 }
1673                         }
1674                         if(foundone) break;
1675                 }
1676
1677                 if(foundone) {
1678                         writestruct(wd, ID_LI, "Library", 1, main->curlib);
1679
1680                         while(a--) {
1681                                 for(id= lbarray[a]->first; id; id= id->next) {
1682                                         if(id->us>0 && (id->flag & LIB_EXTERN)) {
1683                                                 writestruct(wd, ID_ID, "ID", 1, id);
1684                                         }
1685                                 }
1686                         }
1687                 }
1688         }
1689 }
1690
1691 static void write_bone(WriteData *wd, Bone* bone)
1692 {
1693         Bone*   cbone;
1694
1695         // PATCH for upward compatibility after 2.37+ armature recode
1696         bone->size[0]= bone->size[1]= bone->size[2]= 1.0f;
1697                 
1698         // Write this bone
1699         writestruct(wd, DATA, "Bone", 1, bone);
1700         
1701         // Write Children
1702         cbone= bone->childbase.first;
1703         while(cbone) {
1704                 write_bone(wd, cbone);
1705                 cbone= cbone->next;
1706         }
1707 }
1708
1709 static void write_armatures(WriteData *wd, ListBase *idbase)
1710 {
1711         bArmature       *arm;
1712         Bone            *bone;
1713
1714         arm=idbase->first;
1715         while (arm) {
1716                 if (arm->id.us>0 || wd->current) {
1717                         writestruct(wd, ID_AR, "bArmature", 1, arm);
1718                         if (arm->id.properties) IDP_WriteProperty(arm->id.properties, wd);
1719
1720                         /* Direct data */
1721                         bone= arm->bonebase.first;
1722                         while(bone) {
1723                                 write_bone(wd, bone);
1724                                 bone=bone->next;
1725                         }
1726                 }
1727                 arm=arm->id.next;
1728         }
1729
1730         /* flush helps the compression for undo-save */
1731         mywrite(wd, MYWRITE_FLUSH, 0);
1732 }
1733
1734 static void write_actions(WriteData *wd, ListBase *idbase)
1735 {
1736         bAction                 *act;
1737         bActionChannel  *chan;
1738         
1739         for(act=idbase->first; act; act= act->id.next) {
1740                 if (act->id.us>0 || wd->current) {
1741                         writestruct(wd, ID_AC, "bAction", 1, act);
1742                         if (act->id.properties) IDP_WriteProperty(act->id.properties, wd);
1743
1744                         for (chan=act->chanbase.first; chan; chan=chan->next) {
1745                                 writestruct(wd, DATA, "bActionChannel", 1, chan);
1746                                 write_constraint_channels(wd, &chan->constraintChannels);
1747                         }
1748                 }
1749         }
1750 }
1751
1752 static void write_texts(WriteData *wd, ListBase *idbase)
1753 {
1754         Text *text;
1755         TextLine *tmp;
1756
1757         text= idbase->first;
1758         while(text) {
1759                 if ( (text->flags & TXT_ISMEM) && (text->flags & TXT_ISEXT)) text->flags &= ~TXT_ISEXT;
1760
1761                 /* write LibData */
1762                 writestruct(wd, ID_TXT, "Text", 1, text);
1763                 if(text->name) writedata(wd, DATA, strlen(text->name)+1, text->name);
1764                 if (text->id.properties) IDP_WriteProperty(text->id.properties, wd);
1765
1766                 if(!(text->flags & TXT_ISEXT)) {
1767                         /* now write the text data, in two steps for optimization in the readfunction */
1768                         tmp= text->lines.first;
1769                         while (tmp) {
1770                                 writestruct(wd, DATA, "TextLine", 1, tmp);
1771                                 tmp= tmp->next;
1772                         }
1773
1774                         tmp= text->lines.first;
1775                         while (tmp) {
1776                                 writedata(wd, DATA, tmp->len+1, tmp->line);
1777                                 tmp= tmp->next;
1778                         }
1779                 }
1780                 text= text->id.next;
1781         }
1782
1783         /* flush helps the compression for undo-save */
1784         mywrite(wd, MYWRITE_FLUSH, 0);
1785 }
1786
1787 static void write_sounds(WriteData *wd, ListBase *idbase)
1788 {
1789         bSound *sound;
1790         bSample *sample;
1791
1792         PackedFile * pf;
1793
1794         // set all samples to unsaved status
1795
1796         sample = samples->first; // samples is a global defined in sound.c
1797         while (sample) {
1798                 sample->flags |= SAMPLE_NEEDS_SAVE;
1799                 sample = sample->id.next;
1800         }
1801
1802         sound= idbase->first;
1803         while(sound) {
1804                 if(sound->id.us>0 || wd->current) {
1805                         // do we need to save the packedfile as well ?
1806                         sample = sound->sample;
1807                         if (sample) {
1808                                 if (sample->flags & SAMPLE_NEEDS_SAVE) {
1809                                         sound->newpackedfile = sample->packedfile;
1810                                         sample->flags &= ~SAMPLE_NEEDS_SAVE;
1811                                 } else {
1812                                         sound->newpackedfile = NULL;
1813                                 }
1814                         }
1815
1816                         /* write LibData */
1817                         writestruct(wd, ID_SO, "bSound", 1, sound);
1818                         if (sound->id.properties) IDP_WriteProperty(sound->id.properties, wd);
1819
1820                         if (sound->newpackedfile) {
1821                                 pf = sound->newpackedfile;
1822                                 writestruct(wd, DATA, "PackedFile", 1, pf);
1823                                 writedata(wd, DATA, pf->size, pf->data);
1824                         }
1825
1826                         if (sample) {
1827                                 sound->newpackedfile = sample->packedfile;
1828                         }
1829                 }
1830                 sound= sound->id.next;
1831         }
1832
1833         /* flush helps the compression for undo-save */
1834         mywrite(wd, MYWRITE_FLUSH, 0);
1835 }
1836
1837 static void write_groups(WriteData *wd, ListBase *idbase)
1838 {
1839         Group *group;
1840         GroupObject *go;
1841
1842         for(group= idbase->first; group; group= group->id.next) {
1843                 if(group->id.us>0 || wd->current) {
1844                         /* write LibData */
1845                         writestruct(wd, ID_GR, "Group", 1, group);
1846                         if (group->id.properties) IDP_WriteProperty(group->id.properties, wd);
1847
1848                         go= group->gobject.first;
1849                         while(go) {
1850                                 writestruct(wd, DATA, "GroupObject", 1, go);
1851                                 go= go->next;
1852                         }
1853                 }
1854         }
1855 }
1856
1857 static void write_nodetrees(WriteData *wd, ListBase *idbase)
1858 {
1859         bNodeTree *ntree;
1860         
1861         for(ntree=idbase->first; ntree; ntree= ntree->id.next) {
1862                 if (ntree->id.us>0 || wd->current) {
1863                         writestruct(wd, ID_NT, "bNodeTree", 1, ntree);
1864                         write_nodetree(wd, ntree);
1865                         if (ntree->id.properties) IDP_WriteProperty(ntree->id.properties, wd);
1866                 }
1867         }
1868 }
1869
1870 static void write_brushes(WriteData *wd, ListBase *idbase)
1871 {
1872         Brush *brush;
1873         int a;
1874         
1875         for(brush=idbase->first; brush; brush= brush->id.next) {
1876                 if(brush->id.us>0 || wd->current) {
1877                         writestruct(wd, ID_BR, "Brush", 1, brush);
1878                         if (brush->id.properties) IDP_WriteProperty(brush->id.properties, wd);
1879                         for(a=0; a<MAX_MTEX; a++)
1880                                 if(brush->mtex[a])
1881                                         writestruct(wd, DATA, "MTex", 1, brush->mtex[a]);
1882                 }
1883         }
1884 }
1885
1886 static void write_global(WriteData *wd)
1887 {
1888         FileGlobal fg;
1889         char subvstr[8];
1890         
1891         fg.curscreen= G.curscreen;
1892         fg.curscene= G.scene;
1893         fg.displaymode= G.displaymode;
1894         fg.winpos= G.winpos;
1895         fg.fileflags= (G.fileflags & ~G_FILE_NO_UI);    // prevent to save this, is not good convention, and feature with concerns...
1896         fg.globalf= G.f;
1897
1898         sprintf(subvstr, "%4d", BLENDER_SUBVERSION);
1899         memcpy(fg.subvstr, subvstr, 4);
1900         
1901         fg.subversion= BLENDER_SUBVERSION;
1902         fg.minversion= BLENDER_MINVERSION;
1903         fg.minsubversion= BLENDER_MINSUBVERSION;
1904         
1905         writestruct(wd, GLOB, "FileGlobal", 1, &fg);
1906 }
1907
1908 /* if MemFile * there's filesave to memory */
1909 static int write_file_handle(int handle, MemFile *compare, MemFile *current, int write_user_block, int write_flags)
1910 {
1911         BHead bhead;
1912         ListBase mainlist;
1913         char buf[16];
1914         WriteData *wd;
1915
1916         blo_split_main(&mainlist, G.main);
1917
1918         wd= bgnwrite(handle, compare, current, write_flags);
1919         
1920         sprintf(buf, "BLENDER%c%c%.3d", (sizeof(void*)==8)?'-':'_', (G.order==B_ENDIAN)?'V':'v', G.version);
1921         mywrite(wd, buf, 12);
1922
1923         write_renderinfo(wd);
1924         write_global(wd);
1925
1926         if(current==NULL)
1927                 write_screens  (wd, &G.main->screen);   /* no UI save in undo */
1928         write_scenes   (wd, &G.main->scene);
1929         write_curves   (wd, &G.main->curve);
1930         write_mballs   (wd, &G.main->mball);
1931         write_images   (wd, &G.main->image);
1932         write_cameras  (wd, &G.main->camera);
1933         write_lamps    (wd, &G.main->lamp);
1934         write_lattices (wd, &G.main->latt);
1935         write_vfonts   (wd, &G.main->vfont);
1936         write_ipos     (wd, &G.main->ipo);
1937         write_keys     (wd, &G.main->key);
1938         write_worlds   (wd, &G.main->world);
1939         write_texts    (wd, &G.main->text);
1940         write_sounds   (wd, &G.main->sound);
1941         write_groups   (wd, &G.main->group);
1942         write_armatures(wd, &G.main->armature);
1943         write_actions  (wd, &G.main->action);
1944         write_objects  (wd, &G.main->object);
1945         write_materials(wd, &G.main->mat);
1946         write_textures (wd, &G.main->tex);
1947         write_meshs    (wd, &G.main->mesh);
1948         write_particlesettings(wd, &G.main->particle);
1949         write_nodetrees(wd, &G.main->nodetree);
1950         write_brushes  (wd, &G.main->brush);
1951         if(current==NULL)       
1952                 write_libraries(wd,  G.main->next); /* no library save in undo */
1953
1954         if (write_user_block) {
1955                 write_userdef(wd);
1956         }
1957
1958         /* dna as last, because (to be implemented) test for which structs are written */
1959         writedata(wd, DNA1, wd->sdna->datalen, wd->sdna->data);
1960
1961         /* end of file */
1962         memset(&bhead, 0, sizeof(BHead));
1963         bhead.code= ENDB;
1964         mywrite(wd, &bhead, sizeof(BHead));
1965
1966         blo_join_main(&mainlist);
1967         G.main= mainlist.first;
1968
1969         return endwrite(wd);
1970 }
1971
1972 /* return: success (1) */
1973 int BLO_write_file(char *dir, int write_flags, char **error_r)
1974 {
1975         char userfilename[FILE_MAXDIR+FILE_MAXFILE];
1976         char tempname[FILE_MAXDIR+FILE_MAXFILE];
1977         int file, err, write_user_block;
1978
1979         sprintf(tempname, "%s@", dir);
1980
1981         file = open(tempname,O_BINARY+O_WRONLY+O_CREAT+O_TRUNC, 0666);
1982         if(file == -1) {
1983                 *error_r= "Unable to open";
1984                 return 0;
1985         }
1986
1987         BLI_make_file_string(G.sce, userfilename, BLI_gethome(), ".B.blend");
1988
1989         write_user_block= BLI_streq(dir, userfilename);
1990
1991         err= write_file_handle(file, NULL,NULL, write_user_block, write_flags);
1992         close(file);
1993
1994         if(!err) {
1995                 if(write_flags & G_FILE_COMPRESS)
1996                 {       
1997                         // compressed files have the same ending as regular files... only from 2.4!!!
1998                         
1999                         int ret = BLI_gzip(tempname, dir);
2000                         
2001                         if(-1==ret) {
2002                                 *error_r= "Failed opening .gz file";
2003                                 return 0;
2004                         }
2005                         if(-2==ret) {
2006                                 *error_r= "Failed opening .blend file for compression";
2007                                 return 0;
2008                         }
2009                 }
2010                 else
2011                 if(BLI_rename(tempname, dir) < 0) {
2012                         *error_r= "Can't change old file. File saved with @";
2013                         return 0;
2014                 }
2015
2016                 
2017         } else {
2018                 *error_r= strerror(errno);
2019                 remove(tempname);
2020
2021                 return 0;
2022         }
2023
2024         return 1;
2025 }
2026
2027 /* return: success (1) */
2028 int BLO_write_file_mem(MemFile *compare, MemFile *current, int write_flags, char **error_r)
2029 {
2030         int err;
2031
2032         err= write_file_handle(0, compare, current, 0, write_flags);
2033         
2034         if(err==0) return 1;
2035         return 0;
2036 }
2037
2038
2039         /* Runtime writing */
2040
2041 #ifdef WIN32
2042 #define PATHSEPERATOR           "\\"
2043 #else
2044 #define PATHSEPERATOR           "/"
2045 #endif
2046
2047 static char *get_install_dir(void) {
2048         extern char bprogname[];
2049         char *tmpname = BLI_strdup(bprogname);
2050         char *cut;
2051
2052 #ifdef __APPLE__
2053         cut = strstr(tmpname, ".app");
2054         if (cut) cut[0] = 0;
2055 #endif
2056
2057         cut = BLI_last_slash(tmpname);
2058
2059         if (cut) {
2060                 cut[0] = 0;
2061                 return tmpname;
2062         } else {
2063                 MEM_freeN(tmpname);
2064                 return NULL;
2065         }
2066 }
2067
2068 static char *get_runtime_path(char *exename) {
2069         char *installpath= get_install_dir();
2070
2071         if (!installpath) {
2072                 return NULL;
2073         } else {
2074                 char *path= MEM_mallocN(strlen(installpath)+strlen(PATHSEPERATOR)+strlen(exename)+1, "runtimepath");
2075
2076                 if (path == NULL) {
2077                         MEM_freeN(installpath);
2078                         return NULL;
2079                 }
2080
2081                 strcpy(path, installpath);
2082                 strcat(path, PATHSEPERATOR);
2083                 strcat(path, exename);
2084
2085                 MEM_freeN(installpath);
2086
2087                 return path;
2088         }
2089 }
2090
2091 #ifdef __APPLE__
2092
2093 static int recursive_copy_runtime(char *outname, char *exename, char **cause_r) 
2094 {
2095         char *cause = NULL, *runtime = get_runtime_path(exename);
2096         char command[2 * (FILE_MAXDIR+FILE_MAXFILE) + 32];
2097         int progfd = -1;
2098
2099         if (!runtime) {
2100                 cause= "Unable to find runtime";
2101                 goto cleanup;
2102         }
2103         //printf("runtimepath %s\n", runtime);
2104                 
2105         progfd= open(runtime, O_BINARY|O_RDONLY, 0);
2106         if (progfd==-1) {
2107                 cause= "Unable to find runtime";
2108                 goto cleanup;
2109         }
2110
2111         sprintf(command, "/bin/cp -R \"%s\" \"%s\"", runtime, outname);
2112         //printf("command %s\n", command);
2113         if (system(command) == -1) {
2114                 cause = "Couldn't copy runtime";
2115         }
2116
2117 cleanup:
2118         if (progfd!=-1)
2119                 close(progfd);
2120         if (runtime)
2121                 MEM_freeN(runtime);
2122
2123         if (cause) {
2124                 *cause_r= cause;
2125                 return 0;
2126         } else
2127                 return 1;
2128 }
2129
2130 void BLO_write_runtime(char *file, char *exename) {
2131         char gamename[FILE_MAXDIR+FILE_MAXFILE];
2132         int outfd = -1;
2133         char *cause= NULL;
2134
2135         // remove existing file / bundle
2136         //printf("Delete file %s\n", file);
2137         BLI_delete(file, 0, TRUE);
2138
2139         if (!recursive_copy_runtime(file, exename, &cause))
2140                 goto cleanup;
2141
2142         strcpy(gamename, file);
2143         strcat(gamename, "/Contents/Resources/game.blend");
2144         //printf("gamename %s\n", gamename);
2145         outfd= open(gamename, O_BINARY|O_WRONLY|O_CREAT|O_TRUNC, 0777);
2146         if (outfd != -1) {
2147
2148                 write_file_handle(outfd, NULL,NULL, 0, G.fileflags);
2149
2150                 if (write(outfd, " ", 1) != 1) {
2151                         cause= "Unable to write to output file";
2152                         goto cleanup;
2153                 }
2154         } else {
2155                 cause = "Unable to open blenderfile";
2156         }
2157
2158 cleanup:
2159         if (outfd!=-1)
2160                 close(outfd);
2161
2162         if (cause)
2163                 error("Unable to make runtime: %s", cause);
2164 }
2165
2166 #else /* !__APPLE__ */
2167
2168 static int handle_append_runtime(int handle, char *exename, char **cause_r) {
2169         char *cause= NULL, *runtime= get_runtime_path(exename);
2170         unsigned char buf[1024];
2171         int count, progfd= -1;
2172
2173         if (!runtime) {
2174                 cause= "Unable to find runtime";
2175                 goto cleanup;
2176         }
2177
2178         progfd= open(runtime, O_BINARY|O_RDONLY, 0);
2179         if (progfd==-1) {
2180                 cause= "Unable to find runtime";
2181                 goto cleanup;
2182         }
2183
2184         while ((count= read(progfd, buf, sizeof(buf)))>0) {
2185                 if (write(handle, buf, count)!=count) {
2186                         cause= "Unable to write to output file";
2187                         goto cleanup;
2188                 }
2189         }
2190
2191 cleanup:
2192         if (progfd!=-1)
2193                 close(progfd);
2194         if (runtime)
2195                 MEM_freeN(runtime);
2196
2197         if (cause) {
2198                 *cause_r= cause;
2199                 return 0;
2200         } else
2201                 return 1;
2202 }
2203
2204 static int handle_write_msb_int(int handle, int i) {
2205         unsigned char buf[4];
2206         buf[0]= (i>>24)&0xFF;
2207         buf[1]= (i>>16)&0xFF;
2208         buf[2]= (i>>8)&0xFF;
2209         buf[3]= (i>>0)&0xFF;
2210
2211         return (write(handle, buf, 4)==4);
2212 }
2213
2214 void BLO_write_runtime(char *file, char *exename) {
2215         int outfd= open(file, O_BINARY|O_WRONLY|O_CREAT|O_TRUNC, 0777);
2216         char *cause= NULL;
2217         int datastart;
2218
2219         if (!outfd) {
2220                 cause= "Unable to open output file";
2221                 goto cleanup;
2222         }
2223         if (!handle_append_runtime(outfd, exename, &cause))
2224                 goto cleanup;
2225
2226         datastart= lseek(outfd, 0, SEEK_CUR);
2227
2228         write_file_handle(outfd, NULL,NULL, 0, G.fileflags);
2229
2230         if (!handle_write_msb_int(outfd, datastart) || (write(outfd, "BRUNTIME", 8)!=8)) {
2231                 cause= "Unable to write to output file";
2232                 goto cleanup;
2233         }
2234
2235 cleanup:
2236         if (outfd!=-1)
2237                 close(outfd);
2238
2239         if (cause)
2240                 error("Unable to make runtime: %s", cause);
2241 }
2242
2243 #endif /* !__APPLE__ */