The revised patch from Leon for new particle effects.
[blender.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 #ifndef WIN32
87 #include <unistd.h>
88 #else
89 #include "winsock2.h"
90 #include "BLI_winstuff.h"
91 #include <io.h>
92 #include <process.h> // for getpid
93 #endif
94
95 #include <math.h>
96 #include <fcntl.h>
97 #include <stdio.h>
98 #include <string.h>
99 #include <stdlib.h>
100
101 #include "nla.h" //  __NLA is defined
102
103 #include "DNA_packedFile_types.h"
104 #include "DNA_sdna_types.h"
105 #include "DNA_property_types.h"
106 #include "DNA_sensor_types.h"
107 #include "DNA_controller_types.h"
108 #include "DNA_actuator_types.h"
109 #include "DNA_effect_types.h"
110 #include "DNA_object_types.h"
111 #include "DNA_userdef_types.h"
112 #include "DNA_vfont_types.h"
113 #include "DNA_ipo_types.h"
114 #include "DNA_curve_types.h"
115 #include "DNA_camera_types.h"
116 #include "DNA_meta_types.h"
117 #include "DNA_mesh_types.h"
118 #include "DNA_meshdata_types.h"
119 #include "DNA_material_types.h"
120 #include "DNA_lattice_types.h"
121 #include "DNA_armature_types.h"
122 #include "DNA_sequence_types.h"
123 #include "DNA_ika_types.h"
124 #include "DNA_group_types.h"
125 #include "DNA_oops_types.h"
126 #include "DNA_space_types.h"
127 #include "DNA_screen_types.h"
128 #include "DNA_view3d_types.h"
129 #include "DNA_lamp_types.h"
130 #include "DNA_fileglobal_types.h"
131 #include "DNA_sound_types.h"
132 #include "DNA_texture_types.h"
133 #include "DNA_text_types.h"
134 #include "DNA_image_types.h"
135 #include "DNA_key_types.h"
136 #include "DNA_scene_types.h"
137 #include "DNA_constraint_types.h"
138 #include "DNA_listBase.h" /* for Listbase, the type of samples, ...*/
139 #include "DNA_action_types.h"
140 #include "DNA_nla_types.h"
141
142 #include "MEM_guardedalloc.h" // MEM_freeN
143 #include "BLI_blenlib.h"
144 #include "BLI_linklist.h"
145
146 #include "BKE_action.h"
147 #include "BKE_utildefines.h" // for KNOTSU KNOTSV WHILE_SEQ END_SEQ defines
148 #include "BKE_bad_level_calls.h" // build_seqar (from WHILE_SEQ) free_oops error
149 #include "BKE_constraint.h"
150 #include "BKE_main.h" // G.main
151 #include "BKE_global.h" // for G
152 #include "BKE_screen.h" // for waitcursor
153 #include "BKE_packedFile.h" // for packAll
154 #include "BKE_library.h" // for  set_listbasepointers
155 #include "BKE_sound.h" /* ... and for samples */
156
157 #include "GEN_messaging.h"
158
159 #include "BLO_writefile.h"
160 #include "BLO_readfile.h"
161
162 #include "readfile.h"
163 #include "genfile.h"
164
165 typedef struct {
166         struct SDNA *sdna;
167
168         int file;
169         unsigned char *buf;
170
171         int tot, count, error;
172 } WriteData;
173
174 static WriteData *writedata_new(int file)
175 {
176         extern char DNAstr[];   /* DNA.c */
177         extern int DNAlen;
178
179         WriteData *wd= MEM_callocN(sizeof(*wd), "writedata");
180
181                 /* XXX, see note about this in readfile.c, remove
182                  * once we have an xp lock - zr
183                  */
184         wd->sdna= dna_sdna_from_data(DNAstr, DNAlen, 0);
185
186         wd->file= file;
187
188         wd->buf= MEM_mallocN(100000, "wd->buf");
189
190         return wd;
191 }
192
193 static void writedata_do_write(WriteData *wd, void *mem, int memlen)
194 {
195         if (wd->error) return;
196         if (write(wd->file, mem, memlen) != memlen)
197                 wd->error= 1;
198 }
199
200 static void writedata_free(WriteData *wd)
201 {
202         dna_freestructDNA(wd->sdna);
203
204         MEM_freeN(wd->buf);
205         MEM_freeN(wd);
206 }
207
208 /***/
209
210 int mywfile;
211
212 /**
213  * Low level WRITE(2) wrapper that buffers data
214  * @param adr Pointer to new chunk of data
215  * @param len Length of new chunk of data
216  * @warning Talks to other functions with global parameters
217  */
218         static void
219 mywrite(
220         WriteData *wd,
221         void *adr,
222         int len)
223 {
224         if (wd->error) return;
225
226         wd->tot+= len;
227
228         if(len>50000) {
229                 if(wd->count) {
230                         writedata_do_write(wd, wd->buf, wd->count);
231                         wd->count= 0;
232                 }
233                 writedata_do_write(wd, adr, len);
234                 return;
235         }
236         if(len+wd->count>99999) {
237                 writedata_do_write(wd, wd->buf, wd->count);
238                 wd->count= 0;
239         }
240         memcpy(&wd->buf[wd->count], adr, len);
241         wd->count+= len;
242 }
243
244 /**
245  * BeGiN initializer for mywrite
246  * @param file File descriptor
247  * @param write_flags Write parameters
248  * @warning Talks to other functions with global parameters
249  */
250         static WriteData *
251 bgnwrite(
252         int file,
253         int write_flags)
254 {
255         WriteData *wd= writedata_new(file);
256
257         return wd;
258 }
259
260 /**
261  * END the mywrite wrapper
262  * @return 1 if write failed
263  * @return unknown global variable otherwise
264  * @warning Talks to other functions with global parameters
265  */
266         static int
267 endwrite(
268         WriteData *wd)
269 {
270         int err;
271
272         if (wd->count) {
273                 writedata_do_write(wd, wd->buf, wd->count);
274                 wd->count= 0;
275         }
276
277         err= wd->error;
278         writedata_free(wd);
279
280         return err;
281 }
282
283 /* ********** WRITE FILE ****************** */
284
285 static void writestruct(WriteData *wd, int filecode, char *structname, int nr, void *adr)
286 {
287         BHead bh;
288         short *sp;
289
290         if(adr==0 || nr==0) return;
291
292         /* init BHead */
293         bh.code= filecode;
294         bh.old= adr;
295         bh.nr= nr;
296
297         bh.SDNAnr= dna_findstruct_nr(wd->sdna, structname);
298         if(bh.SDNAnr== -1) {
299                 printf("error: can't find SDNA code %s\n", structname);
300                 return;
301         }
302         sp= wd->sdna->structs[bh.SDNAnr];
303
304         bh.len= nr*wd->sdna->typelens[sp[0]];
305
306         if(bh.len==0) return;
307
308         mywrite(wd, &bh, sizeof(BHead));
309         mywrite(wd, adr, bh.len);
310 }
311
312 static void writedata(WriteData *wd, int filecode, int len, void *adr)  /* do not use for structs */
313 {
314         BHead bh;
315
316         if(adr==0) return;
317         if(len==0) return;
318
319         len+= 3;
320         len-= ( len % 4);
321
322         /* init BHead */
323         bh.code= filecode;
324         bh.old= adr;
325         bh.nr= 1;
326         bh.SDNAnr= 0;
327         bh.len= len;
328
329         mywrite(wd, &bh, sizeof(BHead));
330         if(len) mywrite(wd, adr, len);
331 }
332
333 static void write_scriptlink(WriteData *wd, ScriptLink *slink)
334 {
335         writedata(wd, DATA, sizeof(void *)*slink->totscript, slink->scripts);
336         writedata(wd, DATA, sizeof(short)*slink->totscript, slink->flag);
337 }
338
339 static void write_renderinfo(WriteData *wd)             /* for renderdaemon */
340 {
341         Scene *sce;
342         int data[8];
343
344         sce= G.main->scene.first;
345         while(sce) {
346                 if(sce->id.lib==0  && ( sce==G.scene || (sce->r.scemode & R_BG_RENDER)) ) {
347                         data[0]= sce->r.sfra;
348                         data[1]= sce->r.efra;
349
350                         strncpy((char *)(data+2), sce->id.name+2, 23);
351
352                         writedata(wd, REND, 32, data);
353                 }
354                 sce= sce->id.next;
355         }
356 }
357
358 static void write_userdef(WriteData *wd)
359 {
360         bTheme *btheme;
361
362         writestruct(wd, USER, "UserDef", 1, &U);
363
364         btheme= U.themes.first;
365         while(btheme) {
366                 writestruct(wd, DATA, "bTheme", 1, btheme);
367                 btheme= btheme->next;
368         }
369 }
370
371 static void write_effects(WriteData *wd, ListBase *lb)
372 {
373         Effect *eff;
374
375         eff= lb->first;
376         while(eff) {
377
378                 switch(eff->type) {
379                 case EFF_BUILD:
380                         writestruct(wd, DATA, "BuildEff", 1, eff);
381                         break;
382                 case EFF_PARTICLE:
383                         writestruct(wd, DATA, "PartEff", 1, eff);
384                         break;
385                 case EFF_WAVE:
386                         writestruct(wd, DATA, "WaveEff", 1, eff);
387                         break;
388                 default:
389                         writedata(wd, DATA, MEM_allocN_len(eff), eff);
390                 }
391
392                 eff= eff->next;
393         }
394 }
395
396 static void write_properties(WriteData *wd, ListBase *lb)
397 {
398         bProperty *prop;
399
400         prop= lb->first;
401         while(prop) {
402                 writestruct(wd, DATA, "bProperty", 1, prop);
403
404                 if(prop->poin && prop->poin != &prop->data)
405                         writedata(wd, DATA, MEM_allocN_len(prop->poin), prop->poin);
406
407                 prop= prop->next;
408         }
409 }
410
411 static void write_sensors(WriteData *wd, ListBase *lb)
412 {
413         bSensor *sens;
414
415         sens= lb->first;
416         while(sens) {
417                 writestruct(wd, DATA, "bSensor", 1, sens);
418
419                 writedata(wd, DATA, sizeof(void *)*sens->totlinks, sens->links);
420
421                 switch(sens->type) {
422                 case SENS_NEAR:
423                         writestruct(wd, DATA, "bNearSensor", 1, sens->data);
424                         break;
425                 case SENS_MOUSE:
426                         writestruct(wd, DATA, "bMouseSensor", 1, sens->data);
427                         break;
428                 case SENS_TOUCH:
429                         writestruct(wd, DATA, "bTouchSensor", 1, sens->data);
430                         break;
431                 case SENS_KEYBOARD:
432                         writestruct(wd, DATA, "bKeyboardSensor", 1, sens->data);
433                         break;
434                 case SENS_PROPERTY:
435                         writestruct(wd, DATA, "bPropertySensor", 1, sens->data);
436                         break;
437                 case SENS_COLLISION:
438                         writestruct(wd, DATA, "bCollisionSensor", 1, sens->data);
439                         break;
440                 case SENS_RADAR:
441                         writestruct(wd, DATA, "bRadarSensor", 1, sens->data);
442                         break;
443                 case SENS_RANDOM:
444                         writestruct(wd, DATA, "bRandomSensor", 1, sens->data);
445                         break;
446                 case SENS_RAY:
447                         writestruct(wd, DATA, "bRaySensor", 1, sens->data);
448                         break;
449                 case SENS_MESSAGE:
450                         writestruct(wd, DATA, "bMessageSensor", 1, sens->data);
451                         break;
452                 default:
453                         ; /* error: don't know how to write this file */
454                 }
455
456                 sens= sens->next;
457         }
458 }
459
460 static void write_controllers(WriteData *wd, ListBase *lb)
461 {
462         bController *cont;
463
464         cont= lb->first;
465         while(cont) {
466                 writestruct(wd, DATA, "bController", 1, cont);
467
468                 writedata(wd, DATA, sizeof(void *)*cont->totlinks, cont->links);
469
470                 switch(cont->type) {
471                 case CONT_EXPRESSION:
472                         writestruct(wd, DATA, "bExpressionCont", 1, cont->data);
473                         break;
474                 case CONT_PYTHON:
475                         writestruct(wd, DATA, "bPythonCont", 1, cont->data);
476                         break;
477                 default:
478                         ; /* error: don't know how to write this file */
479                 }
480
481                 cont= cont->next;
482         }
483 }
484
485 static void write_actuators(WriteData *wd, ListBase *lb)
486 {
487         bActuator *act;
488
489         act= lb->first;
490         while(act) {
491                 writestruct(wd, DATA, "bActuator", 1, act);
492
493                 switch(act->type) {
494                 case ACT_ACTION:
495                         writestruct(wd, DATA, "bActionActuator", 1, act->data);
496                         break;
497                 case ACT_SOUND:
498                         writestruct(wd, DATA, "bSoundActuator", 1, act->data);
499                         break;
500                 case ACT_CD:
501                         writestruct(wd, DATA, "bCDActuator", 1, act->data);
502                         break;
503                 case ACT_OBJECT:
504                         writestruct(wd, DATA, "bObjectActuator", 1, act->data);
505                         break;
506                 case ACT_IPO:
507                         writestruct(wd, DATA, "bIpoActuator", 1, act->data);
508                         break;
509                 case ACT_PROPERTY:
510                         writestruct(wd, DATA, "bPropertyActuator", 1, act->data);
511                         break;
512                 case ACT_CAMERA:
513                         writestruct(wd, DATA, "bCameraActuator", 1, act->data);
514                         break;
515                 case ACT_CONSTRAINT:
516                         writestruct(wd, DATA, "bConstraintActuator", 1, act->data);
517                         break;
518                 case ACT_EDIT_OBJECT:
519                         writestruct(wd, DATA, "bEditObjectActuator", 1, act->data);
520                         break;
521                 case ACT_SCENE:
522                         writestruct(wd, DATA, "bSceneActuator", 1, act->data);
523                         break;
524                 case ACT_GROUP:
525                         writestruct(wd, DATA, "bGroupActuator", 1, act->data);
526                         break;
527                 case ACT_RANDOM:
528                         writestruct(wd, DATA, "bRandomActuator", 1, act->data);
529                         break;
530                 case ACT_MESSAGE:
531                         writestruct(wd, DATA, "bMessageActuator", 1, act->data);
532                         break;
533                 case ACT_GAME:
534                         writestruct(wd, DATA, "bGameActuator", 1, act->data);
535                         break;
536                 case ACT_VISIBILITY:
537                         writestruct(wd, DATA, "bVisibilityActuator", 1, act->data);
538                         break;
539                 default:
540                         ; /* error: don't know how to write this file */
541                 }
542
543                 act= act->next;
544         }
545 }
546
547 static void write_nlastrips(WriteData *wd, ListBase *nlabase)
548 {
549         bActionStrip *strip;
550
551         for (strip=nlabase->first; strip; strip=strip->next)
552                 writestruct(wd, DATA, "bActionStrip", 1, strip);
553 }
554
555 static void write_constraints(WriteData *wd, ListBase *conlist)
556 {
557         bConstraint *con;
558
559         for (con=conlist->first; con; con=con->next) {
560                 /* Write the specific data */
561                 switch (con->type) {
562                 case CONSTRAINT_TYPE_NULL:
563                         break;
564                 case CONSTRAINT_TYPE_TRACKTO:
565                         writestruct(wd, DATA, "bTrackToConstraint", 1, con->data);
566                         break;
567                 case CONSTRAINT_TYPE_KINEMATIC:
568                         writestruct(wd, DATA, "bKinematicConstraint", 1, con->data);
569                         break;
570                 case CONSTRAINT_TYPE_ROTLIKE:
571                         writestruct(wd, DATA, "bRotateLikeConstraint", 1, con->data);
572                         break;
573                 case CONSTRAINT_TYPE_LOCLIKE:
574                         writestruct(wd, DATA, "bLocateLikeConstraint", 1, con->data);
575                         break;
576                 case CONSTRAINT_TYPE_ACTION:
577                         writestruct(wd, DATA, "bActionConstraint", 1, con->data);
578                         break;
579                 case CONSTRAINT_TYPE_LOCKTRACK:
580                         writestruct(wd, DATA, "bLockTrackConstraint", 1, con->data);
581                         break;
582                 case CONSTRAINT_TYPE_FOLLOWPATH:
583                         writestruct(wd, DATA, "bFollowPathConstraint", 1, con->data);
584                         break;
585                 default:
586                         break;
587                 }
588                 /* Write the constraint */
589                 writestruct(wd, DATA, "bConstraint", 1, con);
590         }
591 }
592
593 static void write_pose(WriteData *wd, bPose *pose)
594 {
595         bPoseChannel    *chan;
596
597         /* Write each channel */
598
599         if (!pose)
600                 return;
601
602         // Write channels
603         for (chan=pose->chanbase.first; chan; chan=chan->next) {
604                 write_constraints(wd, &chan->constraints);
605                 writestruct(wd, DATA, "bPoseChannel", 1, chan);
606         }
607
608         // Write this pose
609         writestruct(wd, DATA, "bPose", 1, pose);
610 }
611
612 static void write_defgroups(WriteData *wd, ListBase *defbase)
613 {
614         bDeformGroup    *defgroup;
615
616         for (defgroup=defbase->first; defgroup; defgroup=defgroup->next)
617                 writestruct(wd, DATA, "bDeformGroup", 1, defgroup);
618 }
619
620 static void write_constraint_channels(WriteData *wd, ListBase *chanbase)
621 {
622         bConstraintChannel *chan;
623
624         for (chan = chanbase->first; chan; chan=chan->next)
625                 writestruct(wd, DATA, "bConstraintChannel", 1, chan);
626
627 }
628
629 static void write_objects(WriteData *wd, ListBase *idbase)
630 {
631         Object *ob;
632
633         ob= idbase->first;
634         while(ob) {
635                 if(ob->id.us>0) {
636                         /* write LibData */
637                         writestruct(wd, ID_OB, "Object", 1, ob);
638
639                         /* direct data */
640                         writedata(wd, DATA, sizeof(void *)*ob->totcol, ob->mat);
641                         write_effects(wd, &ob->effect);
642                         write_properties(wd, &ob->prop);
643                         write_sensors(wd, &ob->sensors);
644                         write_controllers(wd, &ob->controllers);
645                         write_actuators(wd, &ob->actuators);
646                         write_scriptlink(wd, &ob->scriptlink);
647                         write_pose(wd, ob->pose);
648                         write_defgroups(wd, &ob->defbase);
649                         write_constraints(wd, &ob->constraints);
650                         write_constraint_channels(wd, &ob->constraintChannels);
651                         write_nlastrips(wd, &ob->nlastrips);
652                         
653                         writestruct(wd, DATA, "PartDeflect", 1, ob->pd);
654                 }
655                 ob= ob->id.next;
656         }
657 }
658
659
660 static void write_vfonts(WriteData *wd, ListBase *idbase)
661 {
662         VFont *vf;
663         PackedFile * pf;
664
665         vf= idbase->first;
666         while(vf) {
667                 if(vf->id.us>0) {
668                         /* write LibData */
669                         writestruct(wd, ID_VF, "VFont", 1, vf);
670
671                         /* direct data */
672
673                         if (vf->packedfile) {
674                                 pf = vf->packedfile;
675                                 writestruct(wd, DATA, "PackedFile", 1, pf);
676                                 writedata(wd, DATA, pf->size, pf->data);
677                         }
678                 }
679
680                 vf= vf->id.next;
681         }
682 }
683
684 static void write_ipos(WriteData *wd, ListBase *idbase)
685 {
686         Ipo *ipo;
687         IpoCurve *icu;
688
689         ipo= idbase->first;
690         while(ipo) {
691                 if(ipo->id.us>0) {
692                         /* write LibData */
693                         writestruct(wd, ID_IP, "Ipo", 1, ipo);
694
695                         /* direct data */
696                         icu= ipo->curve.first;
697                         while(icu) {
698                                 writestruct(wd, DATA, "IpoCurve", 1, icu);
699                                 icu= icu->next;
700                         }
701
702                         icu= ipo->curve.first;
703                         while(icu) {
704                                 if(icu->bezt)  writestruct(wd, DATA, "BezTriple", icu->totvert, icu->bezt);
705                                 if(icu->bp)  writestruct(wd, DATA, "BPoint", icu->totvert, icu->bp);
706                                 icu= icu->next;
707                         }
708                 }
709
710                 ipo= ipo->id.next;
711         }
712 }
713
714 static void write_keys(WriteData *wd, ListBase *idbase)
715 {
716         Key *key;
717         KeyBlock *kb;
718
719         key= idbase->first;
720         while(key) {
721                 if(key->id.us>0) {
722                         /* write LibData */
723                         writestruct(wd, ID_KE, "Key", 1, key);
724
725                         /* direct data */
726                         kb= key->block.first;
727                         while(kb) {
728                                 writestruct(wd, DATA, "KeyBlock", 1, kb);
729                                 if(kb->data) writedata(wd, DATA, kb->totelem*key->elemsize, kb->data);
730                                 kb= kb->next;
731                         }
732                 }
733
734                 key= key->id.next;
735         }
736 }
737
738 static void write_cameras(WriteData *wd, ListBase *idbase)
739 {
740         Camera *cam;
741
742         cam= idbase->first;
743         while(cam) {
744                 if(cam->id.us>0) {
745                         /* write LibData */
746                         writestruct(wd, ID_CA, "Camera", 1, cam);
747
748                         /* direct data */
749                         write_scriptlink(wd, &cam->scriptlink);
750                 }
751
752                 cam= cam->id.next;
753         }
754 }
755
756 static void write_mballs(WriteData *wd, ListBase *idbase)
757 {
758         MetaBall *mb;
759         MetaElem *ml;
760
761         mb= idbase->first;
762         while(mb) {
763                 if(mb->id.us>0) {
764                         /* write LibData */
765                         writestruct(wd, ID_MB, "MetaBall", 1, mb);
766
767                         /* direct data */
768                         writedata(wd, DATA, sizeof(void *)*mb->totcol, mb->mat);
769
770                         ml= mb->elems.first;
771                         while(ml) {
772                                 writestruct(wd, DATA, "MetaElem", 1, ml);
773                                 ml= ml->next;
774                         }
775                 }
776                 mb= mb->id.next;
777         }
778 }
779
780 static void write_curves(WriteData *wd, ListBase *idbase)
781 {
782         Curve *cu;
783         Nurb *nu;
784
785         cu= idbase->first;
786         while(cu) {
787                 if(cu->id.us>0) {
788                         /* write LibData */
789                         writestruct(wd, ID_CU, "Curve", 1, cu);
790
791                         /* direct data */
792                         writedata(wd, DATA, sizeof(void *)*cu->totcol, cu->mat);
793
794                         if(cu->vfont) {
795                                 writedata(wd, DATA, cu->len+1, cu->str);
796                         }
797                         else {
798                                 /* is also the order of reading */
799                                 nu= cu->nurb.first;
800                                 while(nu) {
801                                         writestruct(wd, DATA, "Nurb", 1, nu);
802                                         nu= nu->next;
803                                 }
804                                 nu= cu->nurb.first;
805                                 while(nu) {
806                                         if( (nu->type & 7)==CU_BEZIER)
807                                                 writestruct(wd, DATA, "BezTriple", nu->pntsu, nu->bezt);
808                                         else {
809                                                 writestruct(wd, DATA, "BPoint", nu->pntsu*nu->pntsv, nu->bp);
810                                                 if(nu->knotsu) writedata(wd, DATA, KNOTSU(nu)*sizeof(float), nu->knotsu);
811                                                 if(nu->knotsv) writedata(wd, DATA, KNOTSV(nu)*sizeof(float), nu->knotsv);
812                                         }
813                                         nu= nu->next;
814                                 }
815                         }
816                 }
817                 cu= cu->id.next;
818         }
819 }
820
821 static void write_dverts(WriteData *wd, int count, MDeformVert *dvlist)
822 {
823         int     i;
824
825         /* Write the dvert list */
826         writestruct(wd, DATA, "MDeformVert", count, dvlist);
827
828         /* Write deformation data for each dvert */
829         if (dvlist) {
830                 for (i=0; i<count; i++) {
831                         if (dvlist[i].dw)
832                                 writestruct(wd, DATA, "MDeformWeight", dvlist[i].totweight, dvlist[i].dw);
833                 }
834         }
835 }
836
837 static void write_meshs(WriteData *wd, ListBase *idbase)
838 {
839         Mesh *mesh;
840
841         mesh= idbase->first;
842         while(mesh) {
843                 if(mesh->id.us>0) {
844                         /* write LibData */
845                         writestruct(wd, ID_ME, "Mesh", 1, mesh);
846
847                         /* direct data */
848                         writedata(wd, DATA, sizeof(void *)*mesh->totcol, mesh->mat);
849                         writestruct(wd, DATA, "MVert", mesh->totvert, mesh->mvert);
850                         write_dverts(wd, mesh->totvert, mesh->dvert);
851                         writestruct(wd, DATA, "MFace", mesh->totface, mesh->mface);
852                         writestruct(wd, DATA, "TFace", mesh->totface, mesh->tface);
853                         writestruct(wd, DATA, "MCol", 4*mesh->totface, mesh->mcol);
854                         writestruct(wd, DATA, "MSticky", mesh->totvert, mesh->msticky);
855
856                 }
857                 mesh= mesh->id.next;
858         }
859 }
860
861 static void write_images(WriteData *wd, ListBase *idbase)
862 {
863         Image *ima;
864         PackedFile * pf;
865
866         ima= idbase->first;
867         while(ima) {
868                 if(ima->id.us>0) {
869                         /* write LibData */
870                         writestruct(wd, ID_IM, "Image", 1, ima);
871
872                         if (ima->packedfile) {
873                                 pf = ima->packedfile;
874                                 writestruct(wd, DATA, "PackedFile", 1, pf);
875                                 writedata(wd, DATA, pf->size, pf->data);
876                         }
877                 }
878                 ima= ima->id.next;
879         }
880 }
881
882 static void write_textures(WriteData *wd, ListBase *idbase)
883 {
884         Tex *tex;
885
886         tex= idbase->first;
887         while(tex) {
888                 if(tex->id.us>0) {
889                         /* write LibData */
890                         writestruct(wd, ID_TE, "Tex", 1, tex);
891
892                         /* direct data */
893                         if(tex->plugin) writestruct(wd, DATA, "PluginTex", 1, tex->plugin);
894                         if(tex->coba) writestruct(wd, DATA, "ColorBand", 1, tex->coba);
895                         if(tex->env) writestruct(wd, DATA, "EnvMap", 1, tex->env);
896                 }
897                 tex= tex->id.next;
898         }
899 }
900
901 static void write_materials(WriteData *wd, ListBase *idbase)
902 {
903         Material *ma;
904         int a;
905
906         ma= idbase->first;
907         while(ma) {
908                 if(ma->id.us>0) {
909                         /* write LibData */
910                         writestruct(wd, ID_MA, "Material", 1, ma);
911
912                         for(a=0; a<8; a++) {
913                                 if(ma->mtex[a]) writestruct(wd, DATA, "MTex", 1, ma->mtex[a]);
914                         }
915
916                         write_scriptlink(wd, &ma->scriptlink);
917                 }
918                 ma= ma->id.next;
919         }
920 }
921
922 static void write_worlds(WriteData *wd, ListBase *idbase)
923 {
924         World *wrld;
925         int a;
926
927         wrld= idbase->first;
928         while(wrld) {
929                 if(wrld->id.us>0) {
930                         /* write LibData */
931                         writestruct(wd, ID_WO, "World", 1, wrld);
932
933                         for(a=0; a<8; a++) {
934                                 if(wrld->mtex[a]) writestruct(wd, DATA, "MTex", 1, wrld->mtex[a]);
935                         }
936
937                         write_scriptlink(wd, &wrld->scriptlink);
938                 }
939                 wrld= wrld->id.next;
940         }
941 }
942
943 static void write_lamps(WriteData *wd, ListBase *idbase)
944 {
945         Lamp *la;
946         int a;
947
948         la= idbase->first;
949         while(la) {
950                 if(la->id.us>0) {
951                         /* write LibData */
952                         writestruct(wd, ID_LA, "Lamp", 1, la);
953
954                         /* direct data */
955                         for(a=0; a<8; a++) {
956                                 if(la->mtex[a]) writestruct(wd, DATA, "MTex", 1, la->mtex[a]);
957                         }
958
959                         write_scriptlink(wd, &la->scriptlink);
960                 }
961                 la= la->id.next;
962         }
963 }
964
965 static void write_lattices(WriteData *wd, ListBase *idbase)
966 {
967         Lattice *lt;
968
969         lt= idbase->first;
970         while(lt) {
971                 if(lt->id.us>0) {
972                         /* write LibData */
973                         writestruct(wd, ID_LT, "Lattice", 1, lt);
974
975                         /* direct data */
976                         writestruct(wd, DATA, "BPoint", lt->pntsu*lt->pntsv*lt->pntsw, lt->def);
977                 }
978                 lt= lt->id.next;
979         }
980 }
981
982 static void write_ikas(WriteData *wd, ListBase *idbase)
983 {
984         Ika *ika;
985         Limb *li;
986
987         ika= idbase->first;
988         while(ika) {
989                 if(ika->id.us>0) {
990                         /* write LibData */
991                         writestruct(wd, ID_IK, "Ika", 1, ika);
992
993                         /* direct data */
994                         li= ika->limbbase.first;
995                         while(li) {
996                                 writestruct(wd, DATA, "Limb", 1, li);
997                                 li= li->next;
998                         }
999
1000                         writestruct(wd, DATA, "Deform", ika->totdef, ika->def);
1001                 }
1002                 ika= ika->id.next;
1003         }
1004 }
1005
1006 static void write_scenes(WriteData *wd, ListBase *scebase)
1007 {
1008         Scene *sce;
1009         Base *base;
1010         Editing *ed;
1011         Sequence *seq;
1012         Strip *strip;
1013
1014         sce= scebase->first;
1015         while(sce) {
1016                 /* write LibData */
1017                 writestruct(wd, ID_SCE, "Scene", 1, sce);
1018
1019                 /* direct data */
1020                 base= sce->base.first;
1021                 while(base) {
1022                         writestruct(wd, DATA, "Base", 1, base);
1023                         base= base->next;
1024                 }
1025
1026                 writestruct(wd, DATA, "Radio", 1, sce->radio);
1027                 writestruct(wd, DATA, "FreeCamera", 1, sce->fcam);
1028
1029                 ed= sce->ed;
1030                 if(ed) {
1031                         writestruct(wd, DATA, "Editing", 1, ed);
1032
1033                         /* reset write flags too */
1034                         WHILE_SEQ(&ed->seqbase) {
1035                                 if(seq->strip) seq->strip->done= 0;
1036                                 writestruct(wd, DATA, "Sequence", 1, seq);
1037                         }
1038                         END_SEQ
1039
1040                         WHILE_SEQ(&ed->seqbase) {
1041                                 if(seq->strip && seq->strip->done==0) {
1042                                         /* write strip with 'done' at 0 because readfile */
1043
1044                                         if(seq->plugin) writestruct(wd, DATA, "PluginSeq", 1, seq->plugin);
1045                                         if(seq->effectdata) {
1046                                                 switch(seq->type){
1047                                                         case SEQ_SWEEP:
1048                                                                 writestruct(wd, DATA, "SweepVars", 1, seq->effectdata);
1049                                                                 break;
1050                                                         case SEQ_GLOW:
1051                                                                 writestruct(wd, DATA, "GlowVars", 1, seq->effectdata);
1052                                                                 break;
1053                                                 }
1054                                         }
1055
1056                                         strip= seq->strip;
1057                                         writestruct(wd, DATA, "Strip", 1, strip);
1058
1059                                         if(seq->type==SEQ_IMAGE)
1060                                                 writestruct(wd, DATA, "StripElem", strip->len, strip->stripdata);
1061                                         else if(seq->type==SEQ_MOVIE || seq->type==SEQ_SOUND)
1062                                                 writestruct(wd, DATA, "StripElem", 1, strip->stripdata);
1063
1064                                         strip->done= 1;
1065                                 }
1066                         }
1067                         END_SEQ
1068                 }
1069
1070                 write_scriptlink(wd, &sce->scriptlink);
1071
1072                 if (sce->r.avicodecdata) {
1073                         writestruct(wd, DATA, "AviCodecData", 1, sce->r.avicodecdata);
1074                         if (sce->r.avicodecdata->lpFormat) writedata(wd, DATA, sce->r.avicodecdata->cbFormat, sce->r.avicodecdata->lpFormat);
1075                         if (sce->r.avicodecdata->lpParms) writedata(wd, DATA, sce->r.avicodecdata->cbParms, sce->r.avicodecdata->lpParms);
1076                 }
1077
1078                 if (sce->r.qtcodecdata) {
1079                         writestruct(wd, DATA, "QuicktimeCodecData", 1, sce->r.qtcodecdata);
1080                         if (sce->r.qtcodecdata->cdParms) writedata(wd, DATA, sce->r.qtcodecdata->cdSize, sce->r.qtcodecdata->cdParms);
1081                 }
1082
1083                 sce= sce->id.next;
1084         }
1085 }
1086
1087 static void write_screens(WriteData *wd, ListBase *scrbase)
1088 {
1089         bScreen *sc;
1090         ScrArea *sa;
1091         ScrVert *sv;
1092         ScrEdge *se;
1093
1094         sc= scrbase->first;
1095         while(sc) {
1096                 /* write LibData */
1097                 writestruct(wd, ID_SCR, "Screen", 1, sc);
1098
1099                 /* direct data */
1100                 sv= sc->vertbase.first;
1101                 while(sv) {
1102                         writestruct(wd, DATA, "ScrVert", 1, sv);
1103                         sv= sv->next;
1104                 }
1105
1106                 se= sc->edgebase.first;
1107                 while(se) {
1108                         writestruct(wd, DATA, "ScrEdge", 1, se);
1109                         se= se->next;
1110                 }
1111
1112                 sa= sc->areabase.first;
1113                 while(sa) {
1114                         SpaceLink *sl;
1115                         Panel *pa;
1116
1117                         writestruct(wd, DATA, "ScrArea", 1, sa);
1118
1119                         pa= sa->panels.first;
1120                         while(pa) {
1121                                 writestruct(wd, DATA, "Panel", 1, pa);
1122                                 pa= pa->next;
1123                         }
1124
1125                         sl= sa->spacedata.first;
1126                         while(sl) {
1127                                 if(sl->spacetype==SPACE_VIEW3D) {
1128                                         View3D *v3d= (View3D*) sl;
1129                                         writestruct(wd, DATA, "View3D", 1, v3d);
1130                                         if(v3d->bgpic) writestruct(wd, DATA, "BGpic", 1, v3d->bgpic);
1131                                         if(v3d->localvd) writestruct(wd, DATA, "View3D", 1, v3d->localvd);
1132                                 }
1133                                 else if(sl->spacetype==SPACE_IPO) {
1134                                         writestruct(wd, DATA, "SpaceIpo", 1, sl);
1135                                 }
1136                                 else if(sl->spacetype==SPACE_BUTS) {
1137                                         writestruct(wd, DATA, "SpaceButs", 1, sl);
1138                                 }
1139                                 else if(sl->spacetype==SPACE_FILE) {
1140                                         writestruct(wd, DATA, "SpaceFile", 1, sl);
1141                                 }
1142                                 else if(sl->spacetype==SPACE_SEQ) {
1143                                         writestruct(wd, DATA, "SpaceSeq", 1, sl);
1144                                 }
1145                                 else if(sl->spacetype==SPACE_OOPS) {
1146                                         SpaceOops *so= (SpaceOops *)sl;
1147                                         Oops *oops;
1148
1149                                         /* cleanup */
1150                                         oops= so->oops.first;
1151                                         while(oops) {
1152                                                 Oops *oopsn= oops->next;
1153                                                 if(oops->id==0) {
1154                                                         BLI_remlink(&so->oops, oops);
1155                                                         free_oops(oops);
1156                                                 }
1157                                                 oops= oopsn;
1158                                         }
1159
1160                                         /* ater cleanup, because of listbase! */
1161                                         writestruct(wd, DATA, "SpaceOops", 1, so);
1162
1163                                         oops= so->oops.first;
1164                                         while(oops) {
1165                                                 writestruct(wd, DATA, "Oops", 1, oops);
1166                                                 oops= oops->next;
1167                                         }
1168                                 }
1169                                 else if(sl->spacetype==SPACE_IMAGE) {
1170                                         writestruct(wd, DATA, "SpaceImage", 1, sl);
1171                                 }
1172                                 else if(sl->spacetype==SPACE_IMASEL) {
1173                                         writestruct(wd, DATA, "SpaceImaSel", 1, sl);
1174                                 }
1175                                 else if(sl->spacetype==SPACE_TEXT) {
1176                                         writestruct(wd, DATA, "SpaceText", 1, sl);
1177                                 }
1178                                 else if(sl->spacetype==SPACE_SCRIPT) {
1179                                         writestruct(wd, DATA, "SpaceScript", 1, sl);
1180                                 }
1181                                 else if(sl->spacetype==SPACE_ACTION) {
1182                                         writestruct(wd, DATA, "SpaceAction", 1, sl);
1183                                 }
1184                                 else if(sl->spacetype==SPACE_SOUND) {
1185                                         writestruct(wd, DATA, "SpaceSound", 1, sl);
1186                                 }
1187                                 else if(sl->spacetype==SPACE_NLA){
1188                                         writestruct(wd, DATA, "SpaceNla", 1, sl);
1189                                 }
1190                                 sl= sl->next;
1191                         }
1192
1193                         sa= sa->next;
1194                 }
1195
1196                 sc= sc->id.next;
1197         }
1198 }
1199
1200 static void write_libraries(WriteData *wd, Main *main)
1201 {
1202         ListBase *lbarray[30];
1203         ID *id;
1204         int a, tot, foundone;
1205
1206         while(main) {
1207
1208                 a=tot= set_listbasepointers(main, lbarray);
1209
1210                 /* test: is lib being used */
1211                 foundone= 0;
1212                 while(tot--) {
1213                         id= lbarray[tot]->first;
1214                         while(id) {
1215                                 if(id->us>0 && (id->flag & LIB_EXTERN)) {
1216                                         foundone= 1;
1217                                         break;
1218                                 }
1219                                 id= id->next;
1220                         }
1221                         if(foundone) break;
1222                 }
1223
1224                 if(foundone) {
1225                         writestruct(wd, ID_LI, "Library", 1, main->curlib);
1226
1227                         while(a--) {
1228                                 id= lbarray[a]->first;
1229                                 while(id) {
1230                                         if(id->us>0 && (id->flag & LIB_EXTERN)) {
1231
1232                                                 writestruct(wd, ID_ID, "ID", 1, id);
1233                                         }
1234                                         id= id->next;
1235                                 }
1236                         }
1237                 }
1238
1239                 main= main->next;
1240         }
1241 }
1242
1243 static void write_bone(WriteData *wd, Bone* bone)
1244 {
1245         Bone*   cbone;
1246
1247 //      write_constraints(wd, &bone->constraints);
1248
1249         // Write this bone
1250         writestruct(wd, DATA, "Bone", 1, bone);
1251
1252         // Write Children
1253         cbone= bone->childbase.first;
1254         while(cbone) {
1255                 write_bone(wd, cbone);
1256                 cbone= cbone->next;
1257         }
1258 }
1259
1260 static void write_armatures(WriteData *wd, ListBase *idbase)
1261 {
1262         bArmature       *arm;
1263         Bone            *bone;
1264
1265         arm=idbase->first;
1266         while (arm) {
1267                 if (arm->id.us>0) {
1268                         writestruct(wd, ID_AR, "bArmature", 1, arm);
1269
1270                         /* Direct data */
1271                         bone= arm->bonebase.first;
1272                         while(bone) {
1273                                 write_bone(wd, bone);
1274                                 bone=bone->next;
1275                         }
1276                 }
1277                 arm=arm->id.next;
1278         }
1279 }
1280
1281 static void write_actions(WriteData *wd, ListBase *idbase)
1282 {
1283         bAction                 *act;
1284         bActionChannel  *chan;
1285         act=idbase->first;
1286         while (act) {
1287                 if (act->id.us>0) {
1288                         writestruct(wd, ID_AC, "bAction", 1, act);
1289
1290                         for (chan=act->chanbase.first; chan; chan=chan->next) {
1291                                 writestruct(wd, DATA, "bActionChannel", 1, chan);
1292                                 write_constraint_channels(wd, &chan->constraintChannels);
1293                         }
1294                 }
1295                 act=act->id.next;
1296         }
1297 }
1298
1299 static void write_texts(WriteData *wd, ListBase *idbase)
1300 {
1301         Text *text;
1302         TextLine *tmp;
1303
1304         text= idbase->first;
1305         while(text) {
1306                 if ( (text->flags & TXT_ISMEM) && (text->flags & TXT_ISEXT)) text->flags &= ~TXT_ISEXT;
1307
1308                 /* write LibData */
1309                 writestruct(wd, ID_TXT, "Text", 1, text);
1310                 if(text->name) writedata(wd, DATA, strlen(text->name)+1, text->name);
1311
1312                 if(!(text->flags & TXT_ISEXT)) {
1313                         /* now write the text data, in two steps for optimization in the readfunction */
1314                         tmp= text->lines.first;
1315                         while (tmp) {
1316                                 writestruct(wd, DATA, "TextLine", 1, tmp);
1317                                 tmp= tmp->next;
1318                         }
1319
1320                         tmp= text->lines.first;
1321                         while (tmp) {
1322                                 writedata(wd, DATA, tmp->len+1, tmp->line);
1323                                 tmp= tmp->next;
1324                         }
1325                 }
1326                 text= text->id.next;
1327         }
1328 }
1329
1330 static void write_sounds(WriteData *wd, ListBase *idbase)
1331 {
1332         bSound *sound;
1333         bSample *sample;
1334
1335         PackedFile * pf;
1336
1337         // set all samples to unsaved status
1338
1339         sample = samples->first;
1340         while (sample) {
1341                 sample->flags |= SAMPLE_NEEDS_SAVE;
1342                 sample = sample->id.next;
1343         }
1344
1345         sound= idbase->first;
1346         while(sound) {
1347                 if(sound->id.us>0) {
1348                         // do we need to save the packedfile as well ?
1349                         sample = sound->sample;
1350                         if (sample) {
1351                                 if (sample->flags & SAMPLE_NEEDS_SAVE) {
1352                                         sound->newpackedfile = sample->packedfile;
1353                                         sample->flags &= ~SAMPLE_NEEDS_SAVE;
1354                                 } else {
1355                                         sound->newpackedfile = NULL;
1356                                 }
1357                         }
1358
1359                         /* write LibData */
1360                         writestruct(wd, ID_SO, "bSound", 1, sound);
1361
1362                         if (sound->newpackedfile) {
1363                                 pf = sound->newpackedfile;
1364                                 writestruct(wd, DATA, "PackedFile", 1, pf);
1365                                 writedata(wd, DATA, pf->size, pf->data);
1366                         }
1367
1368                         if (sample) {
1369                                 sound->newpackedfile = sample->packedfile;
1370                         }
1371                 }
1372                 sound= sound->id.next;
1373         }
1374 }
1375
1376 static void write_groups(WriteData *wd, ListBase *idbase)
1377 {
1378         Group *group;
1379         GroupKey *gk;
1380         GroupObject *go;
1381         ObjectKey *ok;
1382
1383         group= idbase->first;
1384         while(group) {
1385                 if(group->id.us>0) {
1386                         /* write LibData */
1387                         writestruct(wd, ID_GR, "Group", 1, group);
1388
1389                         gk= group->gkey.first;
1390                         while(gk) {
1391                                 writestruct(wd, DATA, "GroupKey", 1, gk);
1392                                 gk= gk->next;
1393                         }
1394
1395                         go= group->gobject.first;
1396                         while(go) {
1397                                 writestruct(wd, DATA, "GroupObject", 1, go);
1398                                 go= go->next;
1399                         }
1400                         go= group->gobject.first;
1401                         while(go) {
1402                                 ok= go->okey.first;
1403                                 while(ok) {
1404                                         writestruct(wd, DATA, "ObjectKey", 1, ok);
1405                                         ok= ok->next;
1406                                 }
1407                                 go= go->next;
1408                         }
1409
1410                 }
1411                 group= group->id.next;
1412         }
1413 }
1414
1415 static void write_global(WriteData *wd)
1416 {
1417         FileGlobal fg;
1418
1419         fg.curscreen= G.curscreen;
1420         fg.displaymode= R.displaymode;
1421         fg.winpos= R.winpos;
1422         fg.fileflags= G.fileflags;
1423         fg.globalf= G.f;
1424
1425         writestruct(wd, GLOB, "FileGlobal", 1, &fg);
1426 }
1427
1428 static int write_file_handle(int handle, int write_user_block, int write_flags)
1429 {
1430         ListBase mainlist;
1431         char buf[13];
1432         WriteData *wd;
1433         int data;
1434
1435         mainlist.first= mainlist.last= G.main;
1436         G.main->next= NULL;
1437
1438         blo_split_main(&mainlist);
1439
1440         wd= bgnwrite(handle, write_flags);
1441
1442         sprintf(buf, "BLENDER%c%c%.3d", (sizeof(void*)==8)?'-':'_', (G.order==B_ENDIAN)?'V':'v', G.version);
1443         mywrite(wd, buf, 12);
1444
1445         write_renderinfo(wd);
1446
1447         write_screens  (wd, &G.main->screen);
1448         write_scenes   (wd, &G.main->scene);
1449         write_objects  (wd, &G.main->object);
1450         write_meshs    (wd, &G.main->mesh);
1451         write_curves   (wd, &G.main->curve);
1452         write_mballs   (wd, &G.main->mball);
1453         write_materials(wd, &G.main->mat);
1454         write_textures (wd, &G.main->tex);
1455         write_images   (wd, &G.main->image);
1456         write_cameras  (wd, &G.main->camera);
1457         write_lamps    (wd, &G.main->lamp);
1458         write_lattices (wd, &G.main->latt);
1459         write_ikas     (wd, &G.main->ika);
1460         write_vfonts   (wd, &G.main->vfont);
1461         write_ipos     (wd, &G.main->ipo);
1462         write_keys     (wd, &G.main->key);
1463         write_worlds   (wd, &G.main->world);
1464         write_texts    (wd, &G.main->text);
1465         write_sounds   (wd, &G.main->sound);
1466         write_groups   (wd, &G.main->group);
1467         write_armatures(wd, &G.main->armature);
1468         write_actions  (wd, &G.main->action);
1469         write_libraries(wd,  G.main->next);
1470
1471         write_global(wd);
1472         if (write_user_block) {
1473                 write_userdef(wd);
1474         }
1475
1476         /* dna as last, because (to be implemented) test for which structs are written */
1477         writedata(wd, DNA1, wd->sdna->datalen, wd->sdna->data);
1478
1479         data= ENDB;
1480         mywrite(wd, &data, 4);
1481
1482         data= 0;
1483         mywrite(wd, &data, 4);
1484
1485         blo_join_main(&mainlist);
1486         G.main= mainlist.first;
1487
1488         return endwrite(wd);
1489 }
1490
1491 int BLO_write_file(char *dir, int write_flags, char **error_r)
1492 {
1493         char userfilename[FILE_MAXDIR+FILE_MAXFILE];
1494         char tempname[FILE_MAXDIR+FILE_MAXFILE];
1495         int file, fout, write_user_block;
1496 #ifdef WIN32
1497         char tmpdir[FILE_MAXDIR+FILE_MAXFILE];
1498 #endif
1499
1500         sprintf(tempname, "%s@", dir);
1501
1502         file = open(tempname,O_BINARY+O_WRONLY+O_CREAT+O_TRUNC, 0666);
1503         if(file == -1) {
1504                 *error_r= "Unable to open";
1505                 return 0;
1506         }
1507
1508         BLI_make_file_string(G.sce, userfilename, BLI_gethome(), ".B.blend");
1509
1510         write_user_block= BLI_streq(dir, userfilename);
1511
1512         fout= write_file_handle(file, write_user_block, write_flags);
1513         close(file);
1514
1515         if(!fout) {
1516                 if(BLI_rename(tempname, dir) < 0) {
1517                         *error_r= "Can't change old file. File saved with @";
1518                         return 0;
1519                 }
1520         } else {
1521                 remove(tempname);
1522
1523                 *error_r= "Not enough diskspace";
1524                 return 0;
1525         }
1526
1527         return 1;
1528 }
1529
1530         /* Runtime writing */
1531
1532 #ifdef WIN32
1533 #define PATHSEPERATOR           "\\"
1534 #else
1535 #define PATHSEPERATOR           "/"
1536 #endif
1537
1538 static char *get_install_dir(void) {
1539         extern char bprogname[];
1540         char *tmpname = BLI_strdup(bprogname);
1541         char *cut;
1542
1543 #ifdef __APPLE__
1544         cut = strstr(tmpname, ".app");
1545         if (cut) cut[0] = 0;
1546 #endif
1547
1548         cut = BLI_last_slash(tmpname);
1549
1550         if (cut) {
1551                 cut[0] = 0;
1552                 return tmpname;
1553         } else {
1554                 MEM_freeN(tmpname);
1555                 return NULL;
1556         }
1557 }
1558
1559 static char *get_runtime_path(char *exename) {
1560         char *installpath= get_install_dir();
1561
1562         if (!installpath) {
1563                 return NULL;
1564         } else {
1565                 char *path= MEM_mallocN(strlen(installpath)+strlen(PATHSEPERATOR)+strlen(exename)+1, "runtimepath");
1566                 strcpy(path, installpath);
1567                 strcat(path, PATHSEPERATOR);
1568                 strcat(path, exename);
1569
1570                 MEM_freeN(installpath);
1571
1572                 return path;
1573         }
1574 }
1575
1576 #ifdef __APPLE__
1577
1578 static int recursive_copy_runtime(char *outname, char *exename, char **cause_r) {
1579         char *cause = NULL, *runtime = get_runtime_path(exename);
1580         char command[2 * (FILE_MAXDIR+FILE_MAXFILE) + 32];
1581         int progfd = -1;
1582
1583         if (!runtime) {
1584                 cause= "Unable to find runtime";
1585                 goto cleanup;
1586         }
1587
1588         progfd= open(runtime, O_BINARY|O_RDONLY, 0);
1589         if (progfd==-1) {
1590                 cause= "Unable to find runtime";
1591                 goto cleanup;
1592         }
1593
1594         sprintf(command, "/bin/cp -R %s %s", runtime, outname);
1595         if (system(command) == -1) {
1596                 cause = "Couldn't copy runtime";
1597         }
1598
1599 cleanup:
1600         if (progfd!=-1)
1601                 close(progfd);
1602         if (runtime)
1603                 MEM_freeN(runtime);
1604
1605         if (cause) {
1606                 *cause_r= cause;
1607                 return 0;
1608         } else
1609                 return 1;
1610 }
1611
1612 void BLO_write_runtime(char *file, char *exename) {
1613         char gamename[FILE_MAXDIR+FILE_MAXFILE];
1614         int outfd = -1;
1615         char *cause= NULL;
1616
1617         // remove existing file / bundle
1618         BLI_delete(file, NULL, TRUE);
1619
1620         if (!recursive_copy_runtime(file, exename, &cause))
1621                 goto cleanup;
1622
1623         strcpy(gamename, file);
1624         strcat(gamename, "/Contents/Resources/game.blend");
1625
1626         outfd= open(gamename, O_BINARY|O_WRONLY|O_CREAT|O_TRUNC, 0777);
1627         if (outfd != -1) {
1628
1629                 write_file_handle(outfd, 0, G.fileflags);
1630
1631                 if (write(outfd, " ", 1) != 1) {
1632                         cause= "Unable to write to output file";
1633                         goto cleanup;
1634                 }
1635         } else {
1636                 cause = "Unable to open blenderfile";
1637         }
1638
1639 cleanup:
1640         if (outfd!=-1)
1641                 close(outfd);
1642
1643         if (cause)
1644                 error("Unable to make runtime: %s", cause);
1645 }
1646
1647 #else /* !__APPLE__ */
1648
1649 static int handle_append_runtime(int handle, char *exename, char **cause_r) {
1650         char *cause= NULL, *runtime= get_runtime_path(exename);
1651         unsigned char buf[1024];
1652         int count, progfd= -1;
1653
1654         if (!runtime) {
1655                 cause= "Unable to find runtime";
1656                 goto cleanup;
1657         }
1658
1659         progfd= open(runtime, O_BINARY|O_RDONLY, 0);
1660         if (progfd==-1) {
1661                 cause= "Unable to find runtime";
1662                 goto cleanup;
1663         }
1664
1665         while ((count= read(progfd, buf, sizeof(buf)))>0) {
1666                 if (write(handle, buf, count)!=count) {
1667                         cause= "Unable to write to output file";
1668                         goto cleanup;
1669                 }
1670         }
1671
1672 cleanup:
1673         if (progfd!=-1)
1674                 close(progfd);
1675         if (runtime)
1676                 MEM_freeN(runtime);
1677
1678         if (cause) {
1679                 *cause_r= cause;
1680                 return 0;
1681         } else
1682                 return 1;
1683 }
1684
1685 static int handle_write_msb_int(int handle, int i) {
1686         unsigned char buf[4];
1687         buf[0]= (i>>24)&0xFF;
1688         buf[1]= (i>>16)&0xFF;
1689         buf[2]= (i>>8)&0xFF;
1690         buf[3]= (i>>0)&0xFF;
1691
1692         return (write(handle, buf, 4)==4);
1693 }
1694
1695 void BLO_write_runtime(char *file, char *exename) {
1696         int outfd= open(file, O_BINARY|O_WRONLY|O_CREAT|O_TRUNC, 0777);
1697         char *cause= NULL;
1698         int datastart;
1699
1700         if (!outfd) {
1701                 cause= "Unable to open output file";
1702                 goto cleanup;
1703         }
1704         if (!handle_append_runtime(outfd, exename, &cause))
1705                 goto cleanup;
1706
1707         datastart= lseek(outfd, 0, SEEK_CUR);
1708
1709         write_file_handle(outfd, 0, G.fileflags);
1710
1711         if (!handle_write_msb_int(outfd, datastart) || (write(outfd, "BRUNTIME", 8)!=8)) {
1712                 cause= "Unable to write to output file";
1713                 goto cleanup;
1714         }
1715
1716 cleanup:
1717         if (outfd!=-1)
1718                 close(outfd);
1719
1720         if (cause)
1721                 error("Unable to make runtime: %s", cause);
1722 }
1723
1724 #endif /* !__APPLE__ */