readfile.h

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/*
 * ***** 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 *****
 * blenloader readfile private function prototypes
 */

#ifndef READFILE_H
#define READFILE_H

#include "zlib.h"

struct OldNewMap;
struct MemFile;
struct bheadsort;
struct ReportList;

typedef struct FileData {
    // linked list of BHeadN's
    ListBase listbase;
    int flags;
    int eof;
    int buffersize;
    int seek;
    int (*read)(struct FileData *filedata, void *buffer, unsigned int size);

    // variables needed for reading from memory / stream
    char *buffer;
    // variables needed for reading from memfile (undo)
    struct MemFile *memfile;

    // variables needed for reading from file
    int filedes;
    gzFile gzfiledes;

    // now only in use for library appending
    char relabase[FILE_MAX];
    
    // variables needed for reading from stream
    char headerdone;
    int inbuffer;
    
    // general reading variables
    struct SDNA *filesdna;
    struct SDNA *memsdna;
    char *compflags;
    
    int fileversion;
    int id_name_offs;       /* used to retrieve ID names from (bhead+1) */
    int globalf, fileflags; /* for do_versions patching */
    
    struct OldNewMap *datamap;
    struct OldNewMap *globmap;
    struct OldNewMap *libmap;
    struct OldNewMap *imamap;
    struct OldNewMap *movieclipmap;
    
    struct bheadsort *bheadmap;
    int tot_bheadmap;
    
    ListBase mainlist;
    
        /* ick ick, used to return
         * data through streamglue.
         */
    BlendFileData **bfd_r;
    struct ReportList *reports;
} FileData;

typedef struct BHeadN {
    struct BHeadN *next, *prev;
    struct BHead bhead;
} BHeadN;


#define FD_FLAGS_SWITCH_ENDIAN             (1<<0)
#define FD_FLAGS_FILE_POINTSIZE_IS_4       (1<<1)
#define FD_FLAGS_POINTSIZE_DIFFERS         (1<<2)
#define FD_FLAGS_FILE_OK                   (1<<3)
#define FD_FLAGS_NOT_MY_BUFFER             (1<<4)
#define FD_FLAGS_NOT_MY_LIBMAP             (1<<5)

#define SIZEOFBLENDERHEADER 12

    /***/
struct Main;
void blo_join_main(ListBase *mainlist);
void blo_split_main(ListBase *mainlist, struct Main *main);

BlendFileData *blo_read_file_internal(FileData *fd, const char *filepath);

FileData *blo_openblenderfile(const char *filepath, struct ReportList *reports);
FileData *blo_openblendermemory(void *buffer, int buffersize, struct ReportList *reports);
FileData *blo_openblendermemfile(struct MemFile *memfile, struct ReportList *reports);

void blo_clear_proxy_pointers_from_lib(Main *oldmain);
void blo_make_image_pointer_map(FileData *fd, Main *oldmain);
void blo_end_image_pointer_map(FileData *fd, Main *oldmain);
void blo_make_movieclip_pointer_map(FileData *fd, Main *oldmain);
void blo_end_movieclip_pointer_map(FileData *fd, Main *oldmain);
void blo_add_library_pointer_map(ListBase *mainlist, FileData *fd);

void blo_freefiledata( FileData *fd);

BHead *blo_firstbhead(FileData *fd);
BHead *blo_nextbhead(FileData *fd, BHead *thisblock);
BHead *blo_prevbhead(FileData *fd, BHead *thisblock);

char *bhead_id_name(FileData *fd, BHead *bhead);

#endif