source/blender/blenloader/intern/writefile.c

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