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/*
* 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.
* blenloader readfile private function prototypes
*/
/** \file
* \ingroup blenloader
*/
#pragma once
#ifdef WIN32
# include "BLI_winstuff.h"
#endif
#include "DNA_sdna_types.h"
#include "DNA_space_types.h"
#include "DNA_windowmanager_types.h" /* for ReportType */
#include "zlib.h"
struct BLI_mmap_file;
struct BLOCacheStorage;
struct IDNameLib_Map;
struct Key;
struct MemFile;
struct Object;
struct OldNewMap;
struct ReportList;
struct UserDef;
typedef struct IDNameLib_Map IDNameLib_Map;
enum eFileDataFlag {
FD_FLAGS_SWITCH_ENDIAN = 1 << 0,
FD_FLAGS_FILE_POINTSIZE_IS_4 = 1 << 1,
FD_FLAGS_POINTSIZE_DIFFERS = 1 << 2,
FD_FLAGS_FILE_OK = 1 << 3,
FD_FLAGS_NOT_MY_BUFFER = 1 << 4,
/* XXX Unused in practice (checked once but never set). */
FD_FLAGS_NOT_MY_LIBMAP = 1 << 5,
};
/* Disallow since it's 32bit on ms-windows. */
#ifdef __GNUC__
# pragma GCC poison off_t
#endif
#if defined(_MSC_VER) || defined(__APPLE__) || defined(__HAIKU__) || defined(__NetBSD__)
typedef int64_t off64_t;
#endif
typedef ssize_t(FileDataReadFn)(struct FileData *filedata,
void *buffer,
size_t size,
bool *r_is_memchunk_identical);
typedef off64_t(FileDataSeekFn)(struct FileData *filedata, off64_t offset, int whence);
typedef struct FileData {
/** Linked list of BHeadN's. */
ListBase bhead_list;
enum eFileDataFlag flags;
bool is_eof;
size_t buffersize;
off64_t file_offset;
FileDataReadFn *read;
FileDataSeekFn *seek;
/** Regular file reading. */
int filedes;
/** Variables needed for reading from memory / stream / memory-mapped files. */
const char *buffer;
struct BLI_mmap_file *mmap_file;
/** Variables needed for reading from memfile (undo). */
struct MemFile *memfile;
/** Whether we are undoing (< 0) or redoing (> 0), used to choose which 'unchanged' flag to use
* to detect unchanged data from memfile. */
int undo_direction; /* eUndoStepDir */
/** Variables needed for reading from file. */
gzFile gzfiledes;
/** Gzip stream for memory decompression. */
z_stream strm;
/** Now only in use for library appending. */
char relabase[FILE_MAX];
/** General reading variables. */
struct SDNA *filesdna;
const struct SDNA *memsdna;
/** Array of #eSDNA_StructCompare. */
const char *compflags;
struct DNA_ReconstructInfo *reconstruct_info;
int fileversion;
/** Used to retrieve ID names from (bhead+1). */
int id_name_offset;
/** Used to retrieve asset data from (bhead+1). NOTE: This may not be available in old files,
* will be -1 then! */
int id_asset_data_offset;
/** For do_versions patching. */
int globalf, fileflags;
/** Optionally skip some data-blocks when they're not needed. */
eBLOReadSkip skip_flags;
/**
* Tag to apply to all loaded ID data-blocks.
*
* \note This is initialized from #LibraryLink_Params.id_tag_extra since passing it as an
* argument would need an additional argument to be passed around when expanding library data.
*/
int id_tag_extra;
struct OldNewMap *datamap;
struct OldNewMap *globmap;
struct OldNewMap *libmap;
struct OldNewMap *packedmap;
struct BLOCacheStorage *cache_storage;
struct BHeadSort *bheadmap;
int tot_bheadmap;
/** See: #USE_GHASH_BHEAD. */
struct GHash *bhead_idname_hash;
ListBase *mainlist;
/** Used for undo. */
ListBase *old_mainlist;
struct IDNameLib_Map *old_idmap;
struct ReportList *reports;
/* Counters for amount of missing libraries, and missing IDs in libraries.
* Used to generate a synthetic report in the UI. */
int library_file_missing_count;
int library_id_missing_count;
} FileData;
#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_filedata_from_file(const char *filepath, struct ReportList *reports);
FileData *blo_filedata_from_memory(const void *mem, int memsize, struct ReportList *reports);
FileData *blo_filedata_from_memfile(struct MemFile *memfile,
const struct BlendFileReadParams *params,
struct ReportList *reports);
void blo_clear_proxy_pointers_from_lib(struct Main *oldmain);
void blo_make_packed_pointer_map(FileData *fd, struct Main *oldmain);
void blo_end_packed_pointer_map(FileData *fd, struct Main *oldmain);
void blo_add_library_pointer_map(ListBase *old_mainlist, FileData *fd);
void blo_make_old_idmap_from_main(FileData *fd, struct Main *bmain);
BHead *blo_read_asset_data_block(FileData *fd, BHead *bhead, struct AssetMetaData **r_asset_data);
void blo_cache_storage_init(FileData *fd, struct Main *bmain);
void blo_cache_storage_old_bmain_clear(FileData *fd, struct Main *bmain_old);
void blo_cache_storage_end(FileData *fd);
void blo_filedata_free(FileData *fd);
BHead *blo_bhead_first(FileData *fd);
BHead *blo_bhead_next(FileData *fd, BHead *thisblock);
BHead *blo_bhead_prev(FileData *fd, BHead *thisblock);
const char *blo_bhead_id_name(const FileData *fd, const BHead *bhead);
struct AssetMetaData *blo_bhead_id_asset_data_address(const FileData *fd, const BHead *bhead);
/* do versions stuff */
void blo_do_versions_dna(struct SDNA *sdna, const int versionfile, const int subversionfile);
void blo_do_versions_oldnewmap_insert(struct OldNewMap *onm,
const void *oldaddr,
void *newaddr,
int nr);
void *blo_do_versions_newlibadr(struct FileData *fd, const void *lib, const void *adr);
void *blo_do_versions_newlibadr_us(struct FileData *fd, const void *lib, const void *adr);
void blo_do_version_old_trackto_to_constraints(struct Object *ob);
void blo_do_versions_key_uidgen(struct Key *key);
void blo_do_versions_userdef(struct UserDef *userdef);
void blo_do_versions_pre250(struct FileData *fd, struct Library *lib, struct Main *bmain);
void blo_do_versions_250(struct FileData *fd, struct Library *lib, struct Main *bmain);
void blo_do_versions_260(struct FileData *fd, struct Library *lib, struct Main *bmain);
void blo_do_versions_270(struct FileData *fd, struct Library *lib, struct Main *bmain);
void blo_do_versions_280(struct FileData *fd, struct Library *lib, struct Main *bmain);
void blo_do_versions_290(struct FileData *fd, struct Library *lib, struct Main *bmain);
void blo_do_versions_300(struct FileData *fd, struct Library *lib, struct Main *bmain);
void blo_do_versions_cycles(struct FileData *fd, struct Library *lib, struct Main *bmain);
void do_versions_after_linking_250(struct Main *bmain);
void do_versions_after_linking_260(struct Main *bmain);
void do_versions_after_linking_270(struct Main *bmain);
void do_versions_after_linking_280(struct Main *bmain, struct ReportList *reports);
void do_versions_after_linking_290(struct Main *bmain, struct ReportList *reports);
void do_versions_after_linking_300(struct Main *bmain, struct ReportList *reports);
void do_versions_after_linking_cycles(struct Main *bmain);
/* This is rather unfortunate to have to expose this here, but better use that nasty hack in
* do_version than readfile itself. */
void *blo_read_get_new_globaldata_address(struct FileData *fd, const void *adr);
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