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Diffstat (limited to 'source/blender/blenloader/intern/runtime.c')
-rw-r--r-- | source/blender/blenloader/intern/runtime.c | 145 |
1 files changed, 145 insertions, 0 deletions
diff --git a/source/blender/blenloader/intern/runtime.c b/source/blender/blenloader/intern/runtime.c new file mode 100644 index 00000000000..f5308b5ea5c --- /dev/null +++ b/source/blender/blenloader/intern/runtime.c @@ -0,0 +1,145 @@ +/* + * $Id$ + * + * ***** BEGIN GPL 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. + * + * 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + * + * The Original Code is Copyright (C) 2001-2002 by NaN Holding BV. + * All rights reserved. + * + * The Original Code is: all of this file. + * + * Contributor(s): none yet. + * + * ***** END GPL LICENSE BLOCK ***** + * + */ + +/** + * \file runtime.c + * \brief This file handles the loading of .blend files embedded in runtimes + * \ingroup blenloader + */ + +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <fcntl.h> +#include <errno.h> + +#ifdef WIN32 +#include <io.h> // read, open +#include "BLI_winstuff.h" +#else // ! WIN32 +#include <unistd.h> // read +#endif + +#include "BLO_readfile.h" +#include "BLO_runtime.h" + +#include "BKE_blender.h" +#include "BKE_report.h" +#include "BKE_utildefines.h" + +#include "BLI_blenlib.h" + +/* Runtime reading */ + +static int handle_read_msb_int(int handle) +{ + unsigned char buf[4]; + + if(read(handle, buf, 4) != 4) + return -1; + + return (buf[0]<<24) + (buf[1]<<16) + (buf[2]<<8) + (buf[3]<<0); +} + +int BLO_is_a_runtime(char *path) +{ + int res= 0, fd= open(path, O_BINARY|O_RDONLY, 0); + int datastart; + char buf[8]; + + if(fd==-1) + goto cleanup; + + lseek(fd, -12, SEEK_END); + + datastart= handle_read_msb_int(fd); + + if(datastart==-1) + goto cleanup; + else if(read(fd, buf, 8)!=8) + goto cleanup; + else if(memcmp(buf, "BRUNTIME", 8)!=0) + goto cleanup; + else + res= 1; + +cleanup: + if(fd!=-1) + close(fd); + + return res; +} + +BlendFileData *BLO_read_runtime(char *path, ReportList *reports) +{ + BlendFileData *bfd= NULL; + size_t actualsize; + int fd, datastart; + char buf[8]; + + fd= open(path, O_BINARY|O_RDONLY, 0); + + if(fd==-1) { + BKE_reportf(reports, RPT_ERROR, "Unable to open \"%s\": %s.", path, strerror(errno)); + goto cleanup; + } + + actualsize= BLI_filesize(fd); + + lseek(fd, -12, SEEK_END); + + datastart= handle_read_msb_int(fd); + + if(datastart==-1) { + BKE_reportf(reports, RPT_ERROR, "Unable to read \"%s\" (problem seeking)", path); + goto cleanup; + } + else if(read(fd, buf, 8)!=8) { + BKE_reportf(reports, RPT_ERROR, "Unable to read \"%s\" (truncated header)", path); + goto cleanup; + } + else if(memcmp(buf, "BRUNTIME", 8)!=0) { + BKE_reportf(reports, RPT_ERROR, "Unable to read \"%s\" (not a blend file)", path); + goto cleanup; + } + else { + //printf("starting to read runtime from %s at datastart %d\n", path, datastart); + lseek(fd, datastart, SEEK_SET); + bfd = blo_read_blendafterruntime(fd, path, actualsize-datastart, reports); + fd= -1; // file was closed in blo_read_blendafterruntime() + } + +cleanup: + if(fd!=-1) + close(fd); + + return bfd; +} + |