Replace of (id->lib != NULL) check by meaningful macro.
[blender.git] / source / blender / blenkernel / intern / packedFile.c
1 /*
2  * ***** BEGIN GPL LICENSE BLOCK *****
3  *
4  * This program is free software; you can redistribute it and/or
5  * modify it under the terms of the GNU General Public License
6  * as published by the Free Software Foundation; either version 2
7  * of the License, or (at your option) any later version.
8  *
9  * This program is distributed in the hope that it will be useful,
10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
12  * GNU General Public License for more details.
13  *
14  * You should have received a copy of the GNU General Public License
15  * along with this program; if not, write to the Free Software Foundation,
16  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
17  *
18  * The Original Code is Copyright (C) 2001-2002 by NaN Holding BV.
19  * All rights reserved.
20  *
21  * The Original Code is: all of this file.
22  *
23  * Contributor(s): none yet.
24  *
25  * ***** END GPL LICENSE BLOCK *****
26  */
27
28 /** \file blender/blenkernel/intern/packedFile.c
29  *  \ingroup bke
30  */
31
32
33 #include <stdio.h>
34 #include <fcntl.h>
35 #include <sys/stat.h>
36
37 #ifndef WIN32 
38 #include <unistd.h>
39 #else
40 #include <io.h>
41 #endif
42 #include <string.h>
43 #include "MEM_guardedalloc.h"
44
45 #include "DNA_image_types.h"
46 #include "DNA_ID.h"
47 #include "DNA_packedFile_types.h"
48 #include "DNA_sound_types.h"
49 #include "DNA_vfont_types.h"
50
51 #include "BLI_blenlib.h"
52 #include "BLI_utildefines.h"
53
54 #include "BKE_font.h"
55 #include "BKE_global.h"
56 #include "BKE_image.h"
57 #include "BKE_main.h"
58 #include "BKE_packedFile.h"
59 #include "BKE_report.h"
60 #include "BKE_sound.h"
61
62 int seekPackedFile(PackedFile *pf, int offset, int whence)
63 {
64         int oldseek = -1, seek = 0;
65
66         if (pf) {
67                 oldseek = pf->seek;
68                 switch (whence) {
69                         case SEEK_CUR:
70                                 seek = oldseek + offset;
71                                 break;
72                         case SEEK_END:
73                                 seek = pf->size + offset;
74                                 break;
75                         case SEEK_SET:
76                                 seek = offset;
77                                 break;
78                         default:
79                                 oldseek = -1;
80                                 break;
81                 }
82                 if (seek < 0) {
83                         seek = 0;
84                 }
85                 else if (seek > pf->size) {
86                         seek = pf->size;
87                 }
88                 pf->seek = seek;
89         }
90
91         return(oldseek);
92 }
93         
94 void rewindPackedFile(PackedFile *pf)
95 {
96         seekPackedFile(pf, 0, SEEK_SET);
97 }
98
99 int readPackedFile(PackedFile *pf, void *data, int size)
100
101         if ((pf != NULL) && (size >= 0) && (data != NULL)) {
102                 if (size + pf->seek > pf->size) {
103                         size = pf->size - pf->seek;
104                 }
105
106                 if (size > 0) {
107                         memcpy(data, ((char *) pf->data) + pf->seek, size);
108                 }
109                 else {
110                         size = 0;
111                 }
112
113                 pf->seek += size;
114         }
115         else {
116                 size = -1;
117         }
118
119         return(size);
120 }
121
122 int countPackedFiles(Main *bmain)
123 {
124         Image *ima;
125         VFont *vf;
126         bSound *sound;
127         int count = 0;
128         
129         /* let's check if there are packed files... */
130         for (ima = bmain->image.first; ima; ima = ima->id.next)
131                 if (BKE_image_has_packedfile(ima))
132                         count ++;
133
134         for (vf = bmain->vfont.first; vf; vf = vf->id.next)
135                 if (vf->packedfile)
136                         count++;
137
138         for (sound = bmain->sound.first; sound; sound = sound->id.next)
139                 if (sound->packedfile)
140                         count++;
141
142         return count;
143 }
144
145 void freePackedFile(PackedFile *pf)
146 {
147         if (pf) {
148                 MEM_freeN(pf->data);
149                 MEM_freeN(pf);
150         }
151         else
152                 printf("freePackedFile: Trying to free a NULL pointer\n");
153 }
154
155 PackedFile *dupPackedFile(const PackedFile *pf_src)
156 {
157         PackedFile *pf_dst;
158
159         pf_dst       = MEM_dupallocN(pf_src);
160         pf_dst->data = MEM_dupallocN(pf_src->data);
161
162         return pf_dst;
163 }
164
165 PackedFile *newPackedFileMemory(void *mem, int memlen)
166 {
167         PackedFile *pf = MEM_callocN(sizeof(*pf), "PackedFile");
168         pf->data = mem;
169         pf->size = memlen;
170         
171         return pf;
172 }
173
174 PackedFile *newPackedFile(ReportList *reports, const char *filename, const char *basepath)
175 {
176         PackedFile *pf = NULL;
177         int file, filelen;
178         char name[FILE_MAX];
179         void *data;
180         
181         /* render result has no filename and can be ignored
182          * any other files with no name can be ignored too */
183         if (filename[0] == '\0')
184                 return NULL;
185
186         //XXX waitcursor(1);
187         
188         /* convert relative filenames to absolute filenames */
189
190         BLI_strncpy(name, filename, sizeof(name));
191         BLI_path_abs(name, basepath);
192
193         /* open the file
194          * and create a PackedFile structure */
195
196         file = BLI_open(name, O_BINARY | O_RDONLY, 0);
197         if (file == -1) {
198                 BKE_reportf(reports, RPT_ERROR, "Unable to pack file, source path '%s' not found", name);
199         }
200         else {
201                 filelen = BLI_file_descriptor_size(file);
202
203                 if (filelen == 0) {
204                         /* MEM_mallocN complains about MEM_mallocN(0, "bla");
205                          * we don't care.... */
206                         data = MEM_mallocN(1, "packFile");
207                 }
208                 else {
209                         data = MEM_mallocN(filelen, "packFile");
210                 }
211                 if (read(file, data, filelen) == filelen) {
212                         pf = newPackedFileMemory(data, filelen);
213                 }
214                 else {
215                         MEM_freeN(data);
216                 }
217
218                 close(file);
219         }
220
221         //XXX waitcursor(0);
222                 
223         return (pf);
224 }
225
226 /* no libraries for now */
227 void packAll(Main *bmain, ReportList *reports, bool verbose)
228 {
229         Image *ima;
230         VFont *vfont;
231         bSound *sound;
232         int tot = 0;
233         
234         for (ima = bmain->image.first; ima; ima = ima->id.next) {
235                 if (BKE_image_has_packedfile(ima) == false && !ID_IS_LINKED_DATABLOCK(ima)) {
236                         if (ima->source == IMA_SRC_FILE) {
237                                 BKE_image_packfiles(reports, ima, ID_BLEND_PATH(bmain, &ima->id));
238                                 tot ++;
239                         }
240                         else if (BKE_image_is_animated(ima) && verbose) {
241                                 BKE_reportf(reports, RPT_WARNING, "Image '%s' skipped, movies and image sequences not supported",
242                                             ima->id.name + 2);
243                         }
244                 }
245         }
246
247         for (vfont = bmain->vfont.first; vfont; vfont = vfont->id.next) {
248                 if (vfont->packedfile == NULL && !ID_IS_LINKED_DATABLOCK(vfont) && BKE_vfont_is_builtin(vfont) == false) {
249                         vfont->packedfile = newPackedFile(reports, vfont->name, bmain->name);
250                         tot ++;
251                 }
252         }
253
254         for (sound = bmain->sound.first; sound; sound = sound->id.next) {
255                 if (sound->packedfile == NULL && !ID_IS_LINKED_DATABLOCK(sound)) {
256                         sound->packedfile = newPackedFile(reports, sound->name, bmain->name);
257                         tot++;
258                 }
259         }
260         
261         if (tot > 0)
262                 BKE_reportf(reports, RPT_INFO, "Packed %d files", tot);
263         else if (verbose)
264                 BKE_report(reports, RPT_INFO, "No new files have been packed");
265 }
266
267
268 #if 0
269
270 // attempt to create a function that generates an unique filename
271 // this will work when all funtions in fileops.c understand relative filenames...
272
273 static char *find_new_name(char *name)
274 {
275         char tempname[FILE_MAX];
276         char *newname;
277         size_t len;
278         
279         if (fop_exists(name)) {
280                 for (number = 1; number <= 999; number++) {
281                         BLI_snprintf(tempname, sizeof(tempname), "%s.%03d", name, number);
282                         if (!fop_exists(tempname)) {
283                                 break;
284                         }
285                 }
286         }
287         len = strlen(tempname) + 1;
288         newname = MEM_mallocN(len, "find_new_name");
289         memcpy(newname, tempname, len * sizeof(char));
290         return newname;
291 }
292 #endif
293
294 int writePackedFile(ReportList *reports, const char *filename, PackedFile *pf, int guimode)
295 {
296         int file, number;
297         int ret_value = RET_OK;
298         bool remove_tmp = false;
299         char name[FILE_MAX];
300         char tempname[FILE_MAX];
301 /*      void *data; */
302         
303         if (guimode) {} //XXX  waitcursor(1);
304         
305         BLI_strncpy(name, filename, sizeof(name));
306         BLI_path_abs(name, G.main->name);
307         
308         if (BLI_exists(name)) {
309                 for (number = 1; number <= 999; number++) {
310                         BLI_snprintf(tempname, sizeof(tempname), "%s.%03d_", name, number);
311                         if (!BLI_exists(tempname)) {
312                                 if (BLI_copy(name, tempname) == RET_OK) {
313                                         remove_tmp = true;
314                                 }
315                                 break;
316                         }
317                 }
318         }
319         
320         /* make sure the path to the file exists... */
321         BLI_make_existing_file(name);
322         
323         file = BLI_open(name, O_BINARY + O_WRONLY + O_CREAT + O_TRUNC, 0666);
324         if (file == -1) {
325                 BKE_reportf(reports, RPT_ERROR, "Error creating file '%s'", name);
326                 ret_value = RET_ERROR;
327         }
328         else {
329                 if (write(file, pf->data, pf->size) != pf->size) {
330                         BKE_reportf(reports, RPT_ERROR, "Error writing file '%s'", name);
331                         ret_value = RET_ERROR;
332                 }
333                 else {
334                         BKE_reportf(reports, RPT_INFO, "Saved packed file to: %s", name);
335                 }
336                 
337                 close(file);
338         }
339         
340         if (remove_tmp) {
341                 if (ret_value == RET_ERROR) {
342                         if (BLI_rename(tempname, name) != 0) {
343                                 BKE_reportf(reports, RPT_ERROR, "Error restoring temp file (check files '%s' '%s')", tempname, name);
344                         }
345                 }
346                 else {
347                         if (BLI_delete(tempname, false, false) != 0) {
348                                 BKE_reportf(reports, RPT_ERROR, "Error deleting '%s' (ignored)", tempname);
349                         }
350                 }
351         }
352         
353         if (guimode) {} //XXX waitcursor(0);
354
355         return (ret_value);
356 }
357         
358 /*
359  * This function compares a packed file to a 'real' file.
360  * It returns an integer indicating if:
361  *
362  * PF_EQUAL             - the packed file and original file are identical
363  * PF_DIFFERENT - the packed file and original file differ
364  * PF_NOFILE    - the original file doens't exist
365  */
366
367 int checkPackedFile(const char *filename, PackedFile *pf)
368 {
369         BLI_stat_t st;
370         int ret_val, i, len, file;
371         char buf[4096];
372         char name[FILE_MAX];
373         
374         BLI_strncpy(name, filename, sizeof(name));
375         BLI_path_abs(name, G.main->name);
376         
377         if (BLI_stat(name, &st) == -1) {
378                 ret_val = PF_NOFILE;
379         }
380         else if (st.st_size != pf->size) {
381                 ret_val = PF_DIFFERS;
382         }
383         else {
384                 /* we'll have to compare the two... */
385
386                 file = BLI_open(name, O_BINARY | O_RDONLY, 0);
387                 if (file == -1) {
388                         ret_val = PF_NOFILE;
389                 }
390                 else {
391                         ret_val = PF_EQUAL;
392
393                         for (i = 0; i < pf->size; i += sizeof(buf)) {
394                                 len = pf->size - i;
395                                 if (len > sizeof(buf)) {
396                                         len = sizeof(buf);
397                                 }
398
399                                 if (read(file, buf, len) != len) {
400                                         /* read error ... */
401                                         ret_val = PF_DIFFERS;
402                                         break;
403                                 }
404                                 else {
405                                         if (memcmp(buf, ((char *)pf->data) + i, len)) {
406                                                 ret_val = PF_DIFFERS;
407                                                 break;
408                                         }
409                                 }
410                         }
411                         
412                         close(file);
413                 }
414         }
415         
416         return(ret_val);
417 }
418
419 /**
420  * unpackFile() looks at the existing files (abs_name, local_name) and a packed file.
421  *
422  * It returns a char *to the existing file name / new file name or NULL when
423  * there was an error or when the user decides to cancel the operation.
424  *
425  * \warning 'abs_name' may be relative still! (use a "//" prefix) be sure to run #BLI_path_abs on it first.
426  */
427 char *unpackFile(ReportList *reports, const char *abs_name, const char *local_name, PackedFile *pf, int how)
428 {
429         char *newname = NULL;
430         const char *temp = NULL;
431         
432         if (pf != NULL) {
433                 switch (how) {
434                         case -1:
435                         case PF_KEEP:
436                                 break;
437                         case PF_REMOVE:
438                                 temp = abs_name;
439                                 break;
440                         case PF_USE_LOCAL:
441                         {
442                                 char temp_abs[FILE_MAX];
443
444                                 BLI_strncpy(temp_abs, local_name, sizeof(temp_abs));
445                                 BLI_path_abs(temp_abs, G.main->name);
446
447                                 /* if file exists use it */
448                                 if (BLI_exists(temp_abs)) {
449                                         temp = local_name;
450                                         break;
451                                 }
452                                 /* else create it */
453                                 /* fall-through */
454                         }
455                         case PF_WRITE_LOCAL:
456                                 if (writePackedFile(reports, local_name, pf, 1) == RET_OK) {
457                                         temp = local_name;
458                                 }
459                                 break;
460                         case PF_USE_ORIGINAL:
461                         {
462                                 char temp_abs[FILE_MAX];
463
464                                 BLI_strncpy(temp_abs, abs_name, sizeof(temp_abs));
465                                 BLI_path_abs(temp_abs, G.main->name);
466
467                                 /* if file exists use it */
468                                 if (BLI_exists(temp_abs)) {
469                                         BKE_reportf(reports, RPT_INFO, "Use existing file (instead of packed): %s", abs_name);
470                                         temp = abs_name;
471                                         break;
472                                 }
473                                 /* else create it */
474                                 /* fall-through */
475                         }
476                         case PF_WRITE_ORIGINAL:
477                                 if (writePackedFile(reports, abs_name, pf, 1) == RET_OK) {
478                                         temp = abs_name;
479                                 }
480                                 break;
481                         default:
482                                 printf("unpackFile: unknown return_value %d\n", how);
483                                 break;
484                 }
485                 
486                 if (temp) {
487                         newname = BLI_strdup(temp);
488                 }
489         }
490         
491         return newname;
492 }
493
494 static void unpack_generate_paths(
495         const char *name, ID *id, char *r_abspath, char *r_relpath, size_t abspathlen, size_t relpathlen)
496 {
497         char tempname[FILE_MAX];
498         char tempdir[FILE_MAXDIR];
499
500         BLI_split_dirfile(name, tempdir, tempname, sizeof(tempdir), sizeof(tempname));
501
502         if (tempname[0] == '\0') {
503                 /* Note: we do not have any real way to re-create extension out of data... */
504                 BLI_strncpy(tempname, id->name + 2, sizeof(tempname));
505                 printf("%s\n", tempname);
506                 BLI_filename_make_safe(tempname);
507                 printf("%s\n", tempname);
508         }
509
510         if (tempdir[0] == '\0') {
511                 /* Fallback to relative dir. */
512                 BLI_strncpy(tempdir, "//", sizeof(tempdir));
513         }
514
515         switch (GS(id->name)) {
516                 case ID_VF:
517                         BLI_snprintf(r_relpath, relpathlen, "//fonts/%s", tempname);
518                         break;
519                 case ID_SO:
520                         BLI_snprintf(r_relpath, relpathlen, "//sounds/%s", tempname);
521                         break;
522                 case ID_IM:
523                         BLI_snprintf(r_relpath, relpathlen, "//textures/%s", tempname);
524                         break;
525         }
526
527         {
528                 size_t len = BLI_strncpy_rlen(r_abspath, tempdir, abspathlen);
529                 BLI_strncpy(r_abspath + len, tempname, abspathlen - len);
530         }
531 }
532
533 int unpackVFont(ReportList *reports, VFont *vfont, int how)
534 {
535         char localname[FILE_MAX], absname[FILE_MAX];
536         char *newname;
537         int ret_value = RET_ERROR;
538         
539         if (vfont != NULL) {
540                 unpack_generate_paths(vfont->name, (ID *)vfont, absname, localname, sizeof(absname), sizeof(localname));
541                 newname = unpackFile(reports, absname, localname, vfont->packedfile, how);
542                 if (newname != NULL) {
543                         ret_value = RET_OK;
544                         freePackedFile(vfont->packedfile);
545                         vfont->packedfile = NULL;
546                         BLI_strncpy(vfont->name, newname, sizeof(vfont->name));
547                         MEM_freeN(newname);
548                 }
549         }
550         
551         return (ret_value);
552 }
553
554 int unpackSound(Main *bmain, ReportList *reports, bSound *sound, int how)
555 {
556         char localname[FILE_MAX], absname[FILE_MAX];
557         char *newname;
558         int ret_value = RET_ERROR;
559
560         if (sound != NULL) {
561                 unpack_generate_paths(sound->name, (ID *)sound, absname, localname, sizeof(absname), sizeof(localname));
562                 newname = unpackFile(reports, absname, localname, sound->packedfile, how);
563                 if (newname != NULL) {
564                         BLI_strncpy(sound->name, newname, sizeof(sound->name));
565                         MEM_freeN(newname);
566
567                         freePackedFile(sound->packedfile);
568                         sound->packedfile = NULL;
569
570                         BKE_sound_load(bmain, sound);
571
572                         ret_value = RET_OK;
573                 }
574         }
575         
576         return(ret_value);
577 }
578
579 int unpackImage(ReportList *reports, Image *ima, int how)
580 {
581         int ret_value = RET_ERROR;
582
583         if (ima != NULL) {
584                 while (ima->packedfiles.last) {
585                         char localname[FILE_MAX], absname[FILE_MAX];
586                         char *newname;
587                         ImagePackedFile *imapf = ima->packedfiles.last;
588
589                         unpack_generate_paths(imapf->filepath, (ID *)ima, absname, localname, sizeof(absname), sizeof(localname));
590                         newname = unpackFile(reports, absname, localname, imapf->packedfile, how);
591
592                         if (newname != NULL) {
593                                 ImageView *iv;
594
595                                 ret_value = ret_value == RET_ERROR ? RET_ERROR : RET_OK;
596                                 freePackedFile(imapf->packedfile);
597                                 imapf->packedfile = NULL;
598
599                                 /* update the new corresponding view filepath */
600                                 iv = BLI_findstring(&ima->views, imapf->filepath, offsetof(ImageView, filepath));
601                                 if (iv) {
602                                         BLI_strncpy(iv->filepath, newname, sizeof(imapf->filepath));
603                                 }
604
605                                 /* keep the new name in the image for non-pack specific reasons */
606                                 if (how != PF_REMOVE) {
607                                         BLI_strncpy(ima->name, newname, sizeof(imapf->filepath));
608                                 }
609                                 MEM_freeN(newname);
610                         }
611                         else {
612                                 ret_value = RET_ERROR;
613                         }
614
615                         BLI_remlink(&ima->packedfiles, imapf);
616                         MEM_freeN(imapf);
617                 }
618         }
619
620         if (ret_value == RET_OK) {
621                 BKE_image_signal(ima, NULL, IMA_SIGNAL_RELOAD);
622         }
623
624         return(ret_value);
625 }
626
627 int unpackLibraries(Main *bmain, ReportList *reports)
628 {
629         Library *lib;
630         char *newname;
631         int ret_value = RET_ERROR;
632         
633         for (lib = bmain->library.first; lib; lib = lib->id.next) {
634                 if (lib->packedfile && lib->name[0]) {
635                         
636                         newname = unpackFile(reports, lib->filepath, lib->filepath, lib->packedfile, PF_WRITE_ORIGINAL);
637                         if (newname != NULL) {
638                                 ret_value = RET_OK;
639                                 
640                                 printf("Unpacked .blend library: %s\n", newname);
641                                 
642                                 freePackedFile(lib->packedfile);
643                                 lib->packedfile = NULL;
644
645                                 MEM_freeN(newname);
646                         }
647                 }
648         }
649         
650         return(ret_value);
651 }
652
653 void packLibraries(Main *bmain, ReportList *reports)
654 {
655         Library *lib;
656         
657         /* test for relativenss */
658         for (lib = bmain->library.first; lib; lib = lib->id.next)
659                 if (!BLI_path_is_rel(lib->name))
660                         break;
661         
662         if (lib) {
663                 BKE_reportf(reports, RPT_ERROR, "Cannot pack absolute file: '%s'", lib->name);
664                 return;
665         }
666         
667         for (lib = bmain->library.first; lib; lib = lib->id.next)
668                 if (lib->packedfile == NULL)
669                         lib->packedfile = newPackedFile(reports, lib->name, bmain->name);
670 }
671
672 void unpackAll(Main *bmain, ReportList *reports, int how)
673 {
674         Image *ima;
675         VFont *vf;
676         bSound *sound;
677
678         for (ima = bmain->image.first; ima; ima = ima->id.next)
679                 if (BKE_image_has_packedfile(ima))
680                         unpackImage(reports, ima, how);
681
682         for (vf = bmain->vfont.first; vf; vf = vf->id.next)
683                 if (vf->packedfile)
684                         unpackVFont(reports, vf, how);
685
686         for (sound = bmain->sound.first; sound; sound = sound->id.next)
687                 if (sound->packedfile)
688                         unpackSound(bmain, reports, sound, how);
689 }
690
691 /* ID should be not NULL, return 1 if there's a packed file */
692 bool BKE_pack_check(ID *id)
693 {
694         switch (GS(id->name)) {
695                 case ID_IM:
696                 {
697                         Image *ima = (Image *)id;
698                         return BKE_image_has_packedfile(ima);
699                 }
700                 case ID_VF:
701                 {
702                         VFont *vf = (VFont *)id;
703                         return vf->packedfile != NULL;
704                 }
705                 case ID_SO:
706                 {
707                         bSound *snd = (bSound *)id;
708                         return snd->packedfile != NULL;
709                 }
710                 case ID_LI:
711                 {
712                         Library *li = (Library *)id;
713                         return li->packedfile != NULL;
714                 }
715         }
716         return false;
717 }
718
719 /* ID should be not NULL */
720 void BKE_unpack_id(Main *bmain, ID *id, ReportList *reports, int how)
721 {
722         switch (GS(id->name)) {
723                 case ID_IM:
724                 {
725                         Image *ima = (Image *)id;
726                         if (BKE_image_has_packedfile(ima)) {
727                                 unpackImage(reports, ima, how);
728                         }
729                         break;
730                 }
731                 case ID_VF:
732                 {
733                         VFont *vf = (VFont *)id;
734                         if (vf->packedfile) {
735                                 unpackVFont(reports, vf, how);
736                         }
737                         break;
738                 }
739                 case ID_SO:
740                 {
741                         bSound *snd = (bSound *)id;
742                         if (snd->packedfile) {
743                                 unpackSound(bmain, reports, snd, how);
744                         }
745                         break;
746                 }
747                 case ID_LI:
748                 {
749                         Library *li = (Library *)id;
750                         BKE_reportf(reports, RPT_ERROR, "Cannot unpack individual Library file, '%s'", li->name);
751                         break;
752                 }
753         }
754 }