diff options
Diffstat (limited to 'source/blender/blenkernel/intern/pointcache.c')
| -rw-r--r-- | source/blender/blenkernel/intern/pointcache.c | 185 |
1 files changed, 185 insertions, 0 deletions
diff --git a/source/blender/blenkernel/intern/pointcache.c b/source/blender/blenkernel/intern/pointcache.c new file mode 100644 index 00000000000..9492754260c --- /dev/null +++ b/source/blender/blenkernel/intern/pointcache.c @@ -0,0 +1,185 @@ +/** + * + * ***** BEGIN GPL/BL DUAL LICENSE BLOCK ***** + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. The Blender + * Foundation also sells licenses for use in proprietary software under + * the Blender License. See http://www.blender.org/BL/ for information + * about this. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software Foundation, + * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. + * + * The Original Code is Copyright (C) 2001-2002 by NaN Holding BV. + * All rights reserved. + * +* Contributor(s): Campbell Barton <ideasman42@gmail.com> + * + * ***** END GPL/BL DUAL LICENSE BLOCK ***** + */ + + +#include <stdlib.h> +#include <stdio.h> +#include <string.h> +#include <sys/stat.h> +#include <sys/types.h> + +#include "BKE_pointcache.h" + +#include "BKE_utildefines.h" +#include "BKE_global.h" +#include "BKE_library.h" + +#include "BLI_blenlib.h" +#include "BKE_utildefines.h" +#include "blendef.h" + +/* needed for directory lookup */ +#ifndef WIN32 + #include <dirent.h> +#else + #include "BLI_winstuff.h" +#endif + +/* Takes an Object ID and returns a unique name + - id: object id + - cfra: frame for the cache, can be negative + - stack_index: index in the modifier stack. we can have cache for more then one stack_index +*/ + +static int ptcache_path(char *filename) +{ + sprintf(filename, PTCACHE_PATH); + BLI_convertstringcode(filename, G.sce, 0); + return strlen(filename); +} + +int BKE_ptcache_id_filename(struct ID *id, char *filename, int cfra, int stack_index, short do_path, short do_ext) +{ + int len=0; + char *idname; + char *newname; + filename[0] = '\0'; + newname = filename; + + /* start with temp dir */ + if (do_path) { + len = ptcache_path(filename); + newname += len; + } + idname = (id->name+2); + /* convert chars to hex so they are always a valid filename */ + while('\0' != *idname) { + sprintf(newname, "%02X", (char)(*idname++)); + newname+=2; + len += 2; + } + + if (do_ext) { + sprintf(newname, "_%06d_%02d"PTCACHE_EXT, cfra, stack_index); /* always 6 chars */ + len += 16; + } + + return len; /* make sure the above string is always 16 chars */ +} + +/* youll need to close yourself after! */ +FILE *BKE_ptcache_id_fopen(struct ID *id, char mode, int cfra, int stack_index) +{ + /* mode is same as fopen's modes */ + FILE *fp = NULL; + char filename[(FILE_MAXDIR+FILE_MAXFILE)*2]; + + BKE_ptcache_id_filename(id, filename, cfra, stack_index, 1, 1); + + if (mode=='r') { + if (!BLI_exists(filename)) { + return NULL; + } + fp = fopen(filename, "rb"); + } else if (mode=='w') { + BLI_make_existing_file(filename); /* will create the dir if needs be, same as //textures is created */ + fp = fopen(filename, "wb"); + } + + if (!fp) { + return NULL; + } + + return fp; +} + +/* youll need to close yourself after! + * mode, + +*/ + +void BKE_ptcache_id_clear(struct ID *id, char mode, int cfra, int stack_index) +{ + int len; /* store the length of the string */ + + /* mode is same as fopen's modes */ + DIR *dir; + struct dirent *de; + char path[FILE_MAX]; + char filename[(FILE_MAXDIR+FILE_MAXFILE)*2]; + char path_full[(FILE_MAXDIR+FILE_MAXFILE)*2]; + + /* clear all files in the temp dir with the prefix of the ID and the ".bphys" suffix */ + switch (mode) { + case PTCACHE_CLEAR_ALL: + case PTCACHE_CLEAR_BEFORE: + case PTCACHE_CLEAR_AFTER: + ptcache_path(path); + len = BKE_ptcache_id_filename(id, filename, cfra, stack_index, 0, 0); /* no path */ + + dir = opendir(path); + if (dir==NULL) + return; + + while ((de = readdir(dir)) != NULL) { + if (strstr(de->d_name, PTCACHE_EXT)) { /* do we have the right extension?*/ + if (strncmp(filename, de->d_name, len ) == 0) { /* do we have the right prefix */ + if (mode == PTCACHE_CLEAR_ALL) { + BLI_join_dirfile(path_full, path, de->d_name); + BLI_delete(path_full, 0, 0); + } else { + /* read the number of the file */ + int frame, len2 = strlen(de->d_name); + char num[7]; + if (len2 > 15) { /* could crash if trying to copy a string out of this range*/ + strncpy(num, de->d_name + (strlen(de->d_name) - 15), 6); + frame = atoi(num); + + if((mode==PTCACHE_CLEAR_BEFORE && frame < cfra) || + (mode==PTCACHE_CLEAR_AFTER && frame > cfra) ) { + + BLI_join_dirfile(path_full, path, de->d_name); + BLI_delete(path_full, 0, 0); + } + } + } + } + } + } + closedir(dir); + break; + + case PTCACHE_CLEAR_FRAME: + len = BKE_ptcache_id_filename(id, filename, cfra, stack_index, 1, 1); /* no path */ + BLI_delete(filename, 0, 0); + break; + } + return; +} + |