Merging r39251 through r39311 from trunk into soc-2011-tomato
[blender-staging.git] / source / blender / windowmanager / intern / wm_files.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  * Contributor(s): Blender Foundation 2007
24  *
25  * ***** END GPL LICENSE BLOCK *****
26  */
27
28 /** \file blender/windowmanager/intern/wm_files.c
29  *  \ingroup wm
30  */
31
32
33         /* placed up here because of crappy
34          * winsock stuff.
35          */
36 #include <stddef.h>
37 #include <string.h>
38 #include <errno.h>
39
40 #include "zlib.h" /* wm_read_exotic() */
41
42 #ifdef WIN32
43 #include <windows.h> /* need to include windows.h so _WIN32_IE is defined  */
44 #ifndef _WIN32_IE
45 #define _WIN32_IE 0x0400 /* minimal requirements for SHGetSpecialFolderPath on MINGW MSVC has this defined already */
46 #endif
47 #include <shlobj.h> /* for SHGetSpecialFolderPath, has to be done before BLI_winstuff because 'near' is disabled through BLI_windstuff */
48 #include <process.h> /* getpid */
49 #include "BLI_winstuff.h"
50 #else
51 #include <unistd.h> /* getpid */
52 #endif
53
54 #include "MEM_guardedalloc.h"
55 #include "MEM_CacheLimiterC-Api.h"
56
57 #include "BLI_blenlib.h"
58 #include "BLI_linklist.h"
59 #include "BLI_utildefines.h"
60 #include "BLI_callbacks.h"
61
62 #include "DNA_anim_types.h"
63 #include "DNA_ipo_types.h" // XXX old animation system
64 #include "DNA_object_types.h"
65 #include "DNA_space_types.h"
66 #include "DNA_userdef_types.h"
67 #include "DNA_scene_types.h"
68 #include "DNA_screen_types.h"
69 #include "DNA_windowmanager_types.h"
70
71 #include "BKE_blender.h"
72 #include "BKE_context.h"
73 #include "BKE_depsgraph.h"
74 #include "BKE_DerivedMesh.h"
75 #include "BKE_font.h"
76 #include "BKE_global.h"
77 #include "BKE_library.h"
78 #include "BKE_main.h"
79 #include "BKE_packedFile.h"
80 #include "BKE_report.h"
81 #include "BKE_sound.h"
82 #include "BKE_texture.h"
83
84
85 #include "BLO_readfile.h"
86 #include "BLO_writefile.h"
87
88 #include "RNA_access.h"
89
90 #include "IMB_imbuf.h"
91 #include "IMB_imbuf_types.h"
92 #include "IMB_thumbs.h"
93
94 #include "ED_datafiles.h"
95 #include "ED_object.h"
96 #include "ED_screen.h"
97 #include "ED_sculpt.h"
98 #include "ED_view3d.h"
99 #include "ED_util.h"
100
101 #include "RE_pipeline.h" /* only to report missing engine */
102
103 #include "GHOST_C-api.h"
104 #include "GHOST_Path-api.h"
105
106 #include "UI_interface.h"
107
108 #include "GPU_draw.h"
109
110 #ifdef WITH_PYTHON
111 #include "BPY_extern.h"
112 #endif
113
114 #include "WM_api.h"
115 #include "WM_types.h"
116 #include "wm.h"
117 #include "wm_files.h"
118 #include "wm_window.h"
119 #include "wm_event_system.h"
120
121 static void write_history(void);
122
123 /* To be able to read files without windows closing, opening, moving 
124    we try to prepare for worst case:
125    - active window gets active screen from file 
126    - restoring the screens from non-active windows 
127    Best case is all screens match, in that case they get assigned to proper window  
128 */
129 static void wm_window_match_init(bContext *C, ListBase *wmlist)
130 {
131         wmWindowManager *wm;
132         wmWindow *win, *active_win;
133         
134         *wmlist= G.main->wm;
135         G.main->wm.first= G.main->wm.last= NULL;
136         
137         active_win = CTX_wm_window(C);
138
139         /* first wrap up running stuff */
140         /* code copied from wm_init_exit.c */
141         for(wm= wmlist->first; wm; wm= wm->id.next) {
142                 
143                 WM_jobs_stop_all(wm);
144                 
145                 for(win= wm->windows.first; win; win= win->next) {
146                 
147                         CTX_wm_window_set(C, win);      /* needed by operator close callbacks */
148                         WM_event_remove_handlers(C, &win->handlers);
149                         WM_event_remove_handlers(C, &win->modalhandlers);
150                         ED_screen_exit(C, win, win->screen);
151                 }
152         }
153         
154         /* reset active window */
155         CTX_wm_window_set(C, active_win);
156
157         ED_editors_exit(C);
158         
159 return; 
160         if(wm==NULL) return;
161         if(G.fileflags & G_FILE_NO_UI) return;
162         
163         /* we take apart the used screens from non-active window */
164         for(win= wm->windows.first; win; win= win->next) {
165                 BLI_strncpy(win->screenname, win->screen->id.name, MAX_ID_NAME);
166                 if(win!=wm->winactive) {
167                         BLI_remlink(&G.main->screen, win->screen);
168                         //BLI_addtail(screenbase, win->screen);
169                 }
170         }
171 }
172
173 /* match old WM with new, 4 cases:
174   1- no current wm, no read wm: make new default
175   2- no current wm, but read wm: that's OK, do nothing
176   3- current wm, but not in file: try match screen names
177   4- current wm, and wm in file: try match ghostwin 
178 */
179
180 static void wm_window_match_do(bContext *C, ListBase *oldwmlist)
181 {
182         wmWindowManager *oldwm, *wm;
183         wmWindow *oldwin, *win;
184         
185         /* cases 1 and 2 */
186         if(oldwmlist->first==NULL) {
187                 if(G.main->wm.first); /* nothing todo */
188                 else
189                         wm_add_default(C);
190         }
191         else {
192                 /* cases 3 and 4 */
193                 
194                 /* we've read file without wm..., keep current one entirely alive */
195                 if(G.main->wm.first==NULL) {
196                         /* when loading without UI, no matching needed */
197                         if(!(G.fileflags & G_FILE_NO_UI)) {
198                                 bScreen *screen= CTX_wm_screen(C);
199
200                                 /* match oldwm to new dbase, only old files */
201                                 for(wm= oldwmlist->first; wm; wm= wm->id.next) {
202                                         
203                                         for(win= wm->windows.first; win; win= win->next) {
204                                                 /* all windows get active screen from file */
205                                                 if(screen->winid==0)
206                                                         win->screen= screen;
207                                                 else 
208                                                         win->screen= ED_screen_duplicate(win, screen);
209                                                 
210                                                 BLI_strncpy(win->screenname, win->screen->id.name+2, sizeof(win->screenname));
211                                                 win->screen->winid= win->winid;
212                                         }
213                                 }
214                         }
215                         
216                         G.main->wm= *oldwmlist;
217                         
218                         /* screens were read from file! */
219                         ED_screens_initialize(G.main->wm.first);
220                 }
221                 else {
222                         /* what if old was 3, and loaded 1? */
223                         /* this code could move to setup_appdata */
224                         oldwm= oldwmlist->first;
225                         wm= G.main->wm.first;
226
227                         /* move addon key configuration to new wm, to preserve their keymaps */
228                         if(oldwm->addonconf) {
229                                 wm->addonconf= oldwm->addonconf;
230                                 BLI_remlink(&oldwm->keyconfigs, oldwm->addonconf);
231                                 oldwm->addonconf= NULL;
232                                 BLI_addtail(&wm->keyconfigs, wm->addonconf);
233                         }
234
235                         /* ensure making new keymaps and set space types */
236                         wm->initialized= 0;
237                         wm->winactive= NULL;
238                         
239                         /* only first wm in list has ghostwins */
240                         for(win= wm->windows.first; win; win= win->next) {
241                                 for(oldwin= oldwm->windows.first; oldwin; oldwin= oldwin->next) {
242                                         
243                                         if(oldwin->winid == win->winid ) {
244                                                 win->ghostwin= oldwin->ghostwin;
245                                                 win->active= oldwin->active;
246                                                 if(win->active)
247                                                         wm->winactive= win;
248
249                                                 if(!G.background) /* file loading in background mode still calls this */
250                                                         GHOST_SetWindowUserData(win->ghostwin, win);    /* pointer back */
251
252                                                 oldwin->ghostwin= NULL;
253                                                 
254                                                 win->eventstate= oldwin->eventstate;
255                                                 oldwin->eventstate= NULL;
256                                                 
257                                                 /* ensure proper screen rescaling */
258                                                 win->sizex= oldwin->sizex;
259                                                 win->sizey= oldwin->sizey;
260                                                 win->posx= oldwin->posx;
261                                                 win->posy= oldwin->posy;
262                                         }
263                                 }
264                         }
265                         wm_close_and_free_all(C, oldwmlist);
266                 }
267         }
268 }
269
270 /* in case UserDef was read, we re-initialize all, and do versioning */
271 static void wm_init_userdef(bContext *C)
272 {
273         UI_init_userdef();
274         MEM_CacheLimiter_set_maximum(U.memcachelimit * 1024 * 1024);
275         sound_init(CTX_data_main(C));
276
277         /* needed so loading a file from the command line respects user-pref [#26156] */
278         if(U.flag & USER_FILENOUI)      G.fileflags |= G_FILE_NO_UI;
279         else                                            G.fileflags &= ~G_FILE_NO_UI;
280
281         /* set the python auto-execute setting from user prefs */
282         /* enabled by default, unless explicitly enabled in the command line which overrides */
283         if((G.f & G_SCRIPT_OVERRIDE_PREF) == 0) {
284                 if ((U.flag & USER_SCRIPT_AUTOEXEC_DISABLE) == 0) G.f |=  G_SCRIPT_AUTOEXEC;
285                 else                                                                                      G.f &= ~G_SCRIPT_AUTOEXEC;
286         }
287         if(U.tempdir[0]) BLI_where_is_temp(btempdir, FILE_MAX, 1);
288 }
289
290
291
292 /* return codes */
293 #define BKE_READ_EXOTIC_FAIL_PATH               -3 /* file format is not supported */
294 #define BKE_READ_EXOTIC_FAIL_FORMAT             -2 /* file format is not supported */
295 #define BKE_READ_EXOTIC_FAIL_OPEN               -1 /* Can't open the file */
296 #define BKE_READ_EXOTIC_OK_BLEND                 0 /* .blend file */
297 #define BKE_READ_EXOTIC_OK_OTHER                 1 /* other supported formats */
298
299 /* intended to check for non-blender formats but for now it only reads blends */
300 static int wm_read_exotic(Scene *UNUSED(scene), const char *name)
301 {
302         int len;
303         gzFile gzfile;
304         char header[7];
305         int retval;
306
307         // make sure we're not trying to read a directory....
308
309         len= strlen(name);
310         if (ELEM(name[len-1], '/', '\\')) {
311                 retval= BKE_READ_EXOTIC_FAIL_PATH;
312         }
313         else {
314                 gzfile = gzopen(name,"rb");
315
316                 if (gzfile == NULL) {
317                         retval= BKE_READ_EXOTIC_FAIL_OPEN;
318                 }
319                 else {
320                         len= gzread(gzfile, header, sizeof(header));
321                         gzclose(gzfile);
322                         if (len == sizeof(header) && strncmp(header, "BLENDER", 7) == 0) {
323                                 retval= BKE_READ_EXOTIC_OK_BLEND;
324                         }
325                         else {
326                                 //XXX waitcursor(1);
327                                 /*
328                                 if(is_foo_format(name)) {
329                                         read_foo(name);
330                                         retval= BKE_READ_EXOTIC_OK_OTHER;
331                                 }
332                                 else
333                                  */
334                                 {
335                                         retval= BKE_READ_EXOTIC_FAIL_FORMAT;
336                                 }
337                                 //XXX waitcursor(0);
338                         }
339                 }
340         }
341
342         return retval;
343 }
344
345 void WM_read_file(bContext *C, const char *filepath, ReportList *reports)
346 {
347         int retval;
348
349         /* so we can get the error message */
350         errno = 0;
351
352         WM_cursor_wait(1);
353
354         BLI_exec_cb(CTX_data_main(C), NULL, BLI_CB_EVT_LOAD_PRE);
355
356         /* first try to append data from exotic file formats... */
357         /* it throws error box when file doesnt exist and returns -1 */
358         /* note; it should set some error message somewhere... (ton) */
359         retval= wm_read_exotic(CTX_data_scene(C), filepath);
360         
361         /* we didn't succeed, now try to read Blender file */
362         if (retval == BKE_READ_EXOTIC_OK_BLEND) {
363                 int G_f= G.f;
364                 ListBase wmbase;
365
366                 /* put aside screens to match with persistant windows later */
367                 /* also exit screens and editors */
368                 wm_window_match_init(C, &wmbase); 
369                 
370                 retval= BKE_read_file(C, filepath, reports);
371                 G.save_over = 1;
372
373                 /* this flag is initialized by the operator but overwritten on read.
374                  * need to re-enable it here else drivers + registered scripts wont work. */
375                 if(G.f != G_f) {
376                         const int flags_keep= (G_SCRIPT_AUTOEXEC | G_SCRIPT_OVERRIDE_PREF);
377                         G.f= (G.f & ~flags_keep) | (G_f & flags_keep);
378                 }
379
380                 /* match the read WM with current WM */
381                 wm_window_match_do(C, &wmbase);
382                 WM_check(C); /* opens window(s), checks keymaps */
383                 
384 // XXX          mainwindow_set_filename_to_title(G.main->name);
385
386                 if(retval == BKE_READ_FILE_OK_USERPREFS) wm_init_userdef(C);    // in case a userdef is read from regular .blend
387                 
388                 if (retval != BKE_READ_FILE_FAIL) {
389                         G.relbase_valid = 1;
390                         if(!G.background) /* assume automated tasks with background, dont write recent file list */
391                                 write_history();
392                 }
393
394
395                 WM_event_add_notifier(C, NC_WM|ND_FILEREAD, NULL);
396 //              refresh_interface_font();
397
398                 CTX_wm_window_set(C, CTX_wm_manager(C)->windows.first);
399
400                 ED_editors_init(C);
401                 DAG_on_visible_update(CTX_data_main(C), TRUE);
402
403 #ifdef WITH_PYTHON
404                 /* run any texts that were loaded in and flagged as modules */
405                 BPY_driver_reset();
406                 BPY_app_handlers_reset();
407                 BPY_modules_load_user(C);
408 #endif
409                 CTX_wm_window_set(C, NULL); /* exits queues */
410
411 #if 0   /* gives popups on windows but not linux, bug in report API but disable for now to stop users getting annoyed  */
412                 /* TODO, make this show in header info window */
413                 {
414                         Scene *sce;
415                         for(sce= G.main->scene.first; sce; sce= sce->id.next) {
416                                 if(sce->r.engine[0] && BLI_findstring(&R_engines, sce->r.engine, offsetof(RenderEngineType, idname)) == NULL) {
417                                         BKE_reportf(reports, RPT_WARNING, "Engine not available: '%s' for scene: %s, an addon may need to be installed or enabled", sce->r.engine, sce->id.name+2);
418                                 }
419                         }
420                 }
421 #endif
422
423                 // XXX          undo_editmode_clear();
424                 BKE_reset_undo();
425                 BKE_write_undo(C, "original");  /* save current state */
426
427                 BLI_exec_cb(CTX_data_main(C), NULL, BLI_CB_EVT_LOAD_POST);
428         }
429         else if(retval == BKE_READ_EXOTIC_OK_OTHER)
430                 BKE_write_undo(C, "Import file");
431         else if(retval == BKE_READ_EXOTIC_FAIL_OPEN) {
432                 BKE_reportf(reports, RPT_ERROR, "Can't read file: \"%s\", %s.", filepath, errno ? strerror(errno) : "Unable to open the file");
433         }
434         else if(retval == BKE_READ_EXOTIC_FAIL_FORMAT) {
435                 BKE_reportf(reports, RPT_ERROR, "File format is not supported in file: \"%s\".", filepath);
436         }
437         else if(retval == BKE_READ_EXOTIC_FAIL_PATH) {
438                 BKE_reportf(reports, RPT_ERROR, "File path invalid: \"%s\".", filepath);
439         }
440         else {
441                 BKE_reportf(reports, RPT_ERROR, "Unknown error loading: \"%s\".", filepath);
442                 BLI_assert(!"invalid 'retval'");
443         }
444
445         WM_cursor_wait(0);
446
447 }
448
449
450 /* called on startup,  (context entirely filled with NULLs) */
451 /* or called for 'New File' */
452 /* op can be NULL */
453 int WM_read_homefile(bContext *C, ReportList *reports, short from_memory)
454 {
455         ListBase wmbase;
456         char tstr[FILE_MAXDIR+FILE_MAXFILE];
457         int success= 0;
458         
459         free_ttfont(); /* still weird... what does it here? */
460                 
461         G.relbase_valid = 0;
462         if (!from_memory) {
463                 char *cfgdir = BLI_get_folder(BLENDER_USER_CONFIG, NULL);
464                 if (cfgdir) {
465                         BLI_make_file_string(G.main->name, tstr, cfgdir, BLENDER_STARTUP_FILE);
466                 } else {
467                         tstr[0] = '\0';
468                         from_memory = 1;
469                         BKE_report(reports, RPT_INFO, "Config directory with "STRINGIFY(BLENDER_STARTUP_FILE)" file not found.");
470                 }
471         }
472         
473         /* prevent loading no UI */
474         G.fileflags &= ~G_FILE_NO_UI;
475         
476         /* put aside screens to match with persistant windows later */
477         wm_window_match_init(C, &wmbase); 
478         
479         if (!from_memory && BLI_exists(tstr)) {
480                 success = (BKE_read_file(C, tstr, NULL) != BKE_READ_FILE_FAIL);
481                 
482                 if(U.themes.first==NULL) {
483                         printf("\nError: No valid "STRINGIFY(BLENDER_STARTUP_FILE)", fall back to built-in default.\n\n");
484                         success = 0;
485                 }
486         }
487         if(success==0) {
488                 success = BKE_read_file_from_memory(C, datatoc_startup_blend, datatoc_startup_blend_size, NULL);
489                 if (wmbase.first == NULL) wm_clear_default_size(C);
490
491 #ifdef WITH_PYTHON_SECURITY /* not default */
492                 /* use alternative setting for security nuts
493                  * otherwise we'd need to patch the binary blob - startup.blend.c */
494                 U.flag |= USER_SCRIPT_AUTOEXEC_DISABLE;
495 #endif
496         }
497         
498         /* prevent buggy files that had G_FILE_RELATIVE_REMAP written out by mistake. Screws up autosaves otherwise
499          * can remove this eventually, only in a 2.53 and older, now its not written */
500         G.fileflags &= ~G_FILE_RELATIVE_REMAP;
501         
502         /* check userdef before open window, keymaps etc */
503         wm_init_userdef(C);
504         
505         /* match the read WM with current WM */
506         wm_window_match_do(C, &wmbase); 
507         WM_check(C); /* opens window(s), checks keymaps */
508
509         G.main->name[0]= '\0';
510
511         /* When loading factory settings, the reset solid OpenGL lights need to be applied. */
512         if (!G.background) GPU_default_lights();
513         
514         /* XXX */
515         G.save_over = 0;        // start with save preference untitled.blend
516         G.fileflags &= ~G_FILE_AUTOPLAY;        /*  disable autoplay in startup.blend... */
517 //      mainwindow_set_filename_to_title("");   // empty string re-initializes title to "Blender"
518         
519 //      refresh_interface_font();
520         
521 //      undo_editmode_clear();
522         BKE_reset_undo();
523         BKE_write_undo(C, "original");  /* save current state */
524
525         ED_editors_init(C);
526         DAG_on_visible_update(CTX_data_main(C), TRUE);
527
528 #ifdef WITH_PYTHON
529         if(CTX_py_init_get(C)) {
530                 /* sync addons, these may have changed from the defaults */
531                 BPY_string_exec(C, "__import__('addon_utils').reset_all()");
532
533                 BPY_driver_reset();
534                 BPY_app_handlers_reset();
535                 BPY_modules_load_user(C);
536         }
537 #endif
538
539         WM_event_add_notifier(C, NC_WM|ND_FILEREAD, NULL);
540
541         /* in background mode the scene will stay NULL */
542         if(!G.background) {
543                 CTX_wm_window_set(C, NULL); /* exits queues */
544         }
545
546         return TRUE;
547 }
548
549 int WM_read_homefile_exec(bContext *C, wmOperator *op)
550 {
551         int from_memory= strcmp(op->type->idname, "WM_OT_read_factory_settings") == 0;
552         return WM_read_homefile(C, op->reports, from_memory) ? OPERATOR_FINISHED : OPERATOR_CANCELLED;
553 }
554
555 void WM_read_history(void)
556 {
557         char name[FILE_MAX];
558         LinkNode *l, *lines;
559         struct RecentFile *recent;
560         char *line;
561         int num;
562         char *cfgdir = BLI_get_folder(BLENDER_USER_CONFIG, NULL);
563
564         if (!cfgdir) return;
565
566         BLI_make_file_string("/", name, cfgdir, BLENDER_HISTORY_FILE);
567
568         lines= BLI_read_file_as_lines(name);
569
570         G.recent_files.first = G.recent_files.last = NULL;
571
572         /* read list of recent opend files from recent-files.txt to memory */
573         for (l= lines, num= 0; l && (num<U.recent_files); l= l->next) {
574                 line = l->link;
575                 if (line[0] && BLI_exists(line)) {
576                         recent = (RecentFile*)MEM_mallocN(sizeof(RecentFile),"RecentFile");
577                         BLI_addtail(&(G.recent_files), recent);
578                         recent->filepath = BLI_strdup(line);
579                         num++;
580                 }
581         }
582         
583         BLI_free_file_lines(lines);
584
585 }
586
587 static void write_history(void)
588 {
589         struct RecentFile *recent, *next_recent;
590         char name[FILE_MAXDIR+FILE_MAXFILE];
591         char *user_config_dir;
592         FILE *fp;
593         int i;
594
595         /* will be NULL in background mode */
596         user_config_dir = BLI_get_folder_create(BLENDER_USER_CONFIG, NULL);
597         if(!user_config_dir)
598                 return;
599
600         BLI_make_file_string("/", name, user_config_dir, BLENDER_HISTORY_FILE);
601
602         recent = G.recent_files.first;
603         /* refresh recent-files.txt of recent opened files, when current file was changed */
604         if(!(recent) || (BLI_path_cmp(recent->filepath, G.main->name)!=0)) {
605                 fp= fopen(name, "w");
606                 if (fp) {
607                         /* add current file to the beginning of list */
608                         recent = (RecentFile*)MEM_mallocN(sizeof(RecentFile),"RecentFile");
609                         recent->filepath = BLI_strdup(G.main->name);
610                         BLI_addhead(&(G.recent_files), recent);
611                         /* write current file to recent-files.txt */
612                         fprintf(fp, "%s\n", recent->filepath);
613                         recent = recent->next;
614                         i=1;
615                         /* write rest of recent opened files to recent-files.txt */
616                         while((i<U.recent_files) && (recent)){
617                                 /* this prevents to have duplicities in list */
618                                 if (BLI_path_cmp(recent->filepath, G.main->name)!=0) {
619                                         fprintf(fp, "%s\n", recent->filepath);
620                                         recent = recent->next;
621                                 }
622                                 else {
623                                         next_recent = recent->next;
624                                         MEM_freeN(recent->filepath);
625                                         BLI_freelinkN(&(G.recent_files), recent);
626                                         recent = next_recent;
627                                 }
628                                 i++;
629                         }
630                         fclose(fp);
631                 }
632
633                 /* also update most recent files on System */
634                 GHOST_addToSystemRecentFiles(G.main->name);
635         }
636 }
637
638 static ImBuf *blend_file_thumb(Scene *scene, int **thumb_pt)
639 {
640         /* will be scaled down, but gives some nice oversampling */
641         ImBuf *ibuf;
642         int *thumb;
643         char err_out[256]= "unknown";
644
645         *thumb_pt= NULL;
646
647         /* scene can be NULL if running a script at startup and calling the save operator */
648         if(G.background || scene==NULL || scene->camera==NULL)
649                 return NULL;
650
651         /* gets scaled to BLEN_THUMB_SIZE */
652         ibuf= ED_view3d_draw_offscreen_imbuf_simple(scene, scene->camera, BLEN_THUMB_SIZE * 2, BLEN_THUMB_SIZE * 2, IB_rect, OB_SOLID, err_out);
653         
654         if(ibuf) {              
655                 float aspect= (scene->r.xsch*scene->r.xasp) / (scene->r.ysch*scene->r.yasp);
656
657                 /* dirty oversampling */
658                 IMB_scaleImBuf(ibuf, BLEN_THUMB_SIZE, BLEN_THUMB_SIZE);
659
660                 /* add pretty overlay */
661                 IMB_overlayblend_thumb(ibuf->rect, ibuf->x, ibuf->y, aspect);
662                 
663                 /* first write into thumb buffer */
664                 thumb= MEM_mallocN(((2 + (BLEN_THUMB_SIZE * BLEN_THUMB_SIZE))) * sizeof(int), "write_file thumb");
665
666                 thumb[0] = BLEN_THUMB_SIZE;
667                 thumb[1] = BLEN_THUMB_SIZE;
668
669                 memcpy(thumb + 2, ibuf->rect, BLEN_THUMB_SIZE * BLEN_THUMB_SIZE * sizeof(int));
670         }
671         else {
672                 /* '*thumb_pt' needs to stay NULL to prevent a bad thumbnail from being handled */
673                 fprintf(stderr, "blend_file_thumb failed to create thumbnail: %s\n", err_out);
674                 thumb= NULL;
675         }
676         
677         /* must be freed by caller */
678         *thumb_pt= thumb;
679         
680         return ibuf;
681 }
682
683 /* easy access from gdb */
684 int write_crash_blend(void)
685 {
686         char path[FILE_MAX];
687         int fileflags = G.fileflags & ~(G_FILE_HISTORY); /* don't do file history on crash file */
688
689         BLI_strncpy(path, G.main->name, sizeof(path));
690         BLI_replace_extension(path, sizeof(path), "_crash.blend");
691         if(BLO_write_file(G.main, path, fileflags, NULL, NULL)) {
692                 printf("written: %s\n", path);
693                 return 1;
694         }
695         else {
696                 printf("failed: %s\n", path);
697                 return 0;
698         }
699 }
700
701 int WM_write_file(bContext *C, const char *target, int fileflags, ReportList *reports, int copy)
702 {
703         Library *li;
704         int len;
705         char filepath[FILE_MAX];
706
707         int *thumb= NULL;
708         ImBuf *ibuf_thumb= NULL;
709
710         len = strlen(target);
711         
712         if (len == 0) {
713                 BKE_report(reports, RPT_ERROR, "Path is empty, cannot save");
714                 return -1;
715         }
716
717         if (len >= FILE_MAX) {
718                 BKE_report(reports, RPT_ERROR, "Path too long, cannot save");
719                 return -1;
720         }
721  
722         BLI_strncpy(filepath, target, FILE_MAX);
723         BLI_replace_extension(filepath, FILE_MAX, ".blend");
724         /* dont use 'target' anymore */
725         
726         /* send the OnSave event */
727         for (li= G.main->library.first; li; li= li->id.next) {
728                 if (BLI_path_cmp(li->filepath, filepath) == 0) {
729                         BKE_reportf(reports, RPT_ERROR, "Can't overwrite used library '%.200s'", filepath);
730                         return -1;
731                 }
732         }
733
734         /* blend file thumbnail */
735         /* save before exit_editmode, otherwise derivedmeshes for shared data corrupt #27765) */
736         if(U.flag & USER_SAVE_PREVIEWS) {
737                 ibuf_thumb= blend_file_thumb(CTX_data_scene(C), &thumb);
738         }
739
740         BLI_exec_cb(G.main, NULL, BLI_CB_EVT_SAVE_PRE);
741
742         /* operator now handles overwrite checks */
743
744         if (G.fileflags & G_AUTOPACK) {
745                 packAll(G.main, reports);
746         }
747         
748         ED_object_exit_editmode(C, EM_DO_UNDO);
749         ED_sculpt_force_update(C);
750
751         /* don't forget not to return without! */
752         WM_cursor_wait(1);
753         
754         fileflags |= G_FILE_HISTORY; /* write file history */
755
756         if (BLO_write_file(CTX_data_main(C), filepath, fileflags, reports, thumb)) {
757                 if(!copy) {
758                         G.relbase_valid = 1;
759                         BLI_strncpy(G.main->name, filepath, sizeof(G.main->name));      /* is guaranteed current file */
760         
761                         G.save_over = 1; /* disable untitled.blend convention */
762                 }
763
764                 if(fileflags & G_FILE_COMPRESS) G.fileflags |= G_FILE_COMPRESS;
765                 else G.fileflags &= ~G_FILE_COMPRESS;
766                 
767                 if(fileflags & G_FILE_AUTOPLAY) G.fileflags |= G_FILE_AUTOPLAY;
768                 else G.fileflags &= ~G_FILE_AUTOPLAY;
769
770                 /* prevent background mode scripts from clobbering history */
771                 if(!G.background) {
772                         write_history();
773                 }
774
775                 BLI_exec_cb(G.main, NULL, BLI_CB_EVT_SAVE_POST);
776
777                 /* run this function after because the file cant be written before the blend is */
778                 if (ibuf_thumb) {
779                         ibuf_thumb= IMB_thumb_create(filepath, THB_NORMAL, THB_SOURCE_BLEND, ibuf_thumb);
780                         IMB_freeImBuf(ibuf_thumb);
781                 }
782
783                 if(thumb) MEM_freeN(thumb);
784         }
785         else {
786                 if(ibuf_thumb) IMB_freeImBuf(ibuf_thumb);
787                 if(thumb) MEM_freeN(thumb);
788                 
789                 WM_cursor_wait(0);
790                 return -1;
791         }
792
793         WM_cursor_wait(0);
794         
795         return 0;
796 }
797
798 /* operator entry */
799 int WM_write_homefile(bContext *C, wmOperator *op)
800 {
801         wmWindowManager *wm= CTX_wm_manager(C);
802         wmWindow *win= CTX_wm_window(C);
803         char filepath[FILE_MAXDIR+FILE_MAXFILE];
804         int fileflags;
805
806         /* check current window and close it if temp */
807         if(win->screen->temp)
808                 wm_window_close(C, wm, win);
809         
810         /* update keymaps in user preferences */
811         WM_keyconfig_update(wm);
812         
813         BLI_make_file_string("/", filepath, BLI_get_folder_create(BLENDER_USER_CONFIG, NULL), BLENDER_STARTUP_FILE);
814         printf("trying to save homefile at %s ", filepath);
815         
816         /*  force save as regular blend file */
817         fileflags = G.fileflags & ~(G_FILE_COMPRESS | G_FILE_AUTOPLAY | G_FILE_LOCK | G_FILE_SIGN | G_FILE_HISTORY);
818
819         if(BLO_write_file(CTX_data_main(C), filepath, fileflags, op->reports, NULL) == 0) {
820                 printf("fail\n");
821                 return OPERATOR_CANCELLED;
822         }
823         
824         printf("ok\n");
825
826         G.save_over= 0;
827
828         return OPERATOR_FINISHED;
829 }
830
831 /************************ autosave ****************************/
832
833 void wm_autosave_location(char *filepath)
834 {
835         char pidstr[32];
836 #ifdef WIN32
837         char *savedir;
838 #endif
839
840         BLI_snprintf(pidstr, sizeof(pidstr), "%d.blend", abs(getpid()));
841
842 #ifdef WIN32
843         /* XXX Need to investigate how to handle default location of '/tmp/'
844          * This is a relative directory on Windows, and it may be
845          * found. Example:
846          * Blender installed on D:\ drive, D:\ drive has D:\tmp\
847          * Now, BLI_exists() will find '/tmp/' exists, but
848          * BLI_make_file_string will create string that has it most likely on C:\
849          * through get_default_root().
850          * If there is no C:\tmp autosave fails. */
851         if (!BLI_exists(U.tempdir)) {
852                 savedir = BLI_get_folder_create(BLENDER_USER_AUTOSAVE, NULL);
853                 BLI_make_file_string("/", filepath, savedir, pidstr);
854                 return;
855         }
856 #endif
857         
858         BLI_make_file_string("/", filepath, U.tempdir, pidstr);
859 }
860
861 void WM_autosave_init(wmWindowManager *wm)
862 {
863         wm_autosave_timer_ended(wm);
864
865         if(U.flag & USER_AUTOSAVE)
866                 wm->autosavetimer= WM_event_add_timer(wm, NULL, TIMERAUTOSAVE, U.savetime*60.0);
867 }
868
869 void wm_autosave_timer(const bContext *C, wmWindowManager *wm, wmTimer *UNUSED(wt))
870 {
871         wmWindow *win;
872         wmEventHandler *handler;
873         char filepath[FILE_MAX];
874         int fileflags;
875
876         WM_event_remove_timer(wm, NULL, wm->autosavetimer);
877
878         /* if a modal operator is running, don't autosave, but try again in 10 seconds */
879         for(win=wm->windows.first; win; win=win->next) {
880                 for(handler=win->modalhandlers.first; handler; handler=handler->next) {
881                         if(handler->op) {
882                                 wm->autosavetimer= WM_event_add_timer(wm, NULL, TIMERAUTOSAVE, 10.0);
883                                 return;
884                         }
885                 }
886         }
887         
888         wm_autosave_location(filepath);
889
890         /*  force save as regular blend file */
891         fileflags = G.fileflags & ~(G_FILE_COMPRESS|G_FILE_AUTOPLAY |G_FILE_LOCK|G_FILE_SIGN|G_FILE_HISTORY);
892
893         /* no error reporting to console */
894         BLO_write_file(CTX_data_main(C), filepath, fileflags, NULL, NULL);
895
896         /* do timer after file write, just in case file write takes a long time */
897         wm->autosavetimer= WM_event_add_timer(wm, NULL, TIMERAUTOSAVE, U.savetime*60.0);
898 }
899
900 void wm_autosave_timer_ended(wmWindowManager *wm)
901 {
902         if(wm->autosavetimer) {
903                 WM_event_remove_timer(wm, NULL, wm->autosavetimer);
904                 wm->autosavetimer= NULL;
905         }
906 }
907
908 void wm_autosave_delete(void)
909 {
910         char filename[FILE_MAX];
911         
912         wm_autosave_location(filename);
913
914         if(BLI_exists(filename)) {
915                 char str[FILE_MAXDIR+FILE_MAXFILE];
916                 BLI_make_file_string("/", str, U.tempdir, "quit.blend");
917
918                 /* if global undo; remove tempsave, otherwise rename */
919                 if(U.uiflag & USER_GLOBALUNDO) BLI_delete(filename, 0, 0);
920                 else BLI_rename(filename, str);
921         }
922 }
923
924 void wm_autosave_read(bContext *C, ReportList *reports)
925 {
926         char filename[FILE_MAX];
927
928         wm_autosave_location(filename);
929         WM_read_file(C, filename, reports);
930 }
931