#include <cmath>
#include <cstddef>
#include <cstdio>
#include <cstdlib>
#include <cstring>
#include "MEM_guardedalloc.h"
#include "BLI_ghash.h"
#include "BLI_linklist.h"
#include "BLI_path_utils.hh"
#include "BLI_string.h"
#include "BLI_utildefines.h"
#include "DNA_genfile.h"
#include "DNA_sdna_types.h"
#include "BKE_asset.hh"
#include "BKE_idtype.hh"
#include "BKE_main.hh"
#include "BKE_preview_image.hh"
#include "BLO_blend_defs.hh"
#include "BLO_readfile.hh"
#include "readfile.hh"
#include "BLI_sys_types.h"

Functions
void	BLO_datablock_info_free (BLODataBlockInfo *datablock_info)

void	BLO_datablock_info_linklist_free (LinkNode *datablock_infos)

BlendHandle *	BLO_blendhandle_from_file (const char filepath, BlendFileReadReport reports)

BlendHandle *	BLO_blendhandle_from_memory (const void mem, int memsize, BlendFileReadReport reports)

LinkNode *	BLO_blendhandle_get_datablock_names (BlendHandle bh, int ofblocktype, const bool use_assets_only, int r_tot_names)

LinkNode *	BLO_blendhandle_get_datablock_info (BlendHandle bh, int ofblocktype, const bool use_assets_only, int r_tot_info_items)

static BHead *	blo_blendhandle_read_preview_rects (FileData fd, BHead bhead, PreviewImage result, const PreviewImage preview_from_file)

PreviewImage *	BLO_blendhandle_get_preview_for_id (BlendHandle bh, int ofblocktype, const char name)

LinkNode *	BLO_blendhandle_get_linkable_groups (BlendHandle *bh)

void	BLO_blendhandle_close (BlendHandle *bh)

void	BLO_read_invalidate_message (BlendHandle bh, Main bmain, const char *message)

BlendFileData *	BLO_read_from_file (const char filepath, eBLOReadSkip skip_flags, BlendFileReadReport reports)

BlendFileData *	BLO_read_from_memory (const void mem, int memsize, eBLOReadSkip skip_flags, ReportList reports)

BlendFileData *	BLO_read_from_memfile (Main oldmain, const char filepath, MemFile memfile, const BlendFileReadParams params, ReportList *reports)

void	BLO_blendfiledata_free (BlendFileData *bfd)

void	BLO_read_do_version_after_setup (Main new_bmain, BlendfileLinkAppendContext lapp_context, BlendFileReadReport *reports)

Detailed Description

.blend file reading entry point.

Definition in file readblenentry.cc.

Function Documentation

◆ BLO_blendfiledata_free()

void BLO_blendfiledata_free ( BlendFileData * bfd )

Frees a BlendFileData structure and all the data associated with it (the userdef data, and the main libblock data).

Parameters

bfd	The structure to free.

Definition at line 394 of file readblenentry.cc.

References BKE_main_free(), BlendFileData::main, MEM_freeN(), and BlendFileData::user.

Referenced by BKE_blendfile_read(), BKE_blendfile_read_from_memfile(), BKE_blendfile_read_from_memory(), BKE_blendfile_read_setup_readfile(), BlendfileLoadingBaseTest::blendfile_free(), and sequencer_clipboard_paste_exec().

◆ BLO_blendhandle_close()

void BLO_blendhandle_close ( BlendHandle * bh )

Close and free a blendhandle. The handle becomes invalid after this call.

Parameters

bh	The handle to close.

Definition at line 286 of file readblenentry.cc.

References blo_filedata_free().

Referenced by BKE_blendfile_is_readable(), BLO_library_temp_free(), BLO_main_validate_libraries(), filelist_freelib(), filelist_readjob_list_lib(), imb_thumb_load_from_blend_id(), and link_append_context_library_blohandle_release().

◆ BLO_blendhandle_from_file()

BlendHandle * BLO_blendhandle_from_file	(	const char *	filepath,
		BlendFileReadReport *	reports )

Open a blendhandle from a file path.

Parameters

filepath	The file path to open.
reports	Report errors in opening the file (can be NULL).

Returns: A handle on success, or NULL on failure.

Definition at line 62 of file readblenentry.cc.

References blo_filedata_from_file().

Referenced by BKE_blendfile_is_readable(), BLO_library_temp_load_id(), BLO_main_validate_libraries(), bpy_lib_enter(), filelist_readjob_list_lib(), imb_thumb_load_from_blend_id(), and link_append_context_library_blohandle_ensure().

◆ BLO_blendhandle_from_memory()

BlendHandle * BLO_blendhandle_from_memory	(	const void *	mem,
		int	memsize,
		BlendFileReadReport *	reports )

Open a blendhandle from memory.

Parameters

mem	The data to load from.
memsize	The size of the data.

Returns: A handle on success, or NULL on failure.

Definition at line 71 of file readblenentry.cc.

References blo_filedata_from_memory().

Referenced by link_append_context_library_blohandle_ensure().

◆ BLO_blendhandle_get_datablock_info()

LinkNode * BLO_blendhandle_get_datablock_info	(	BlendHandle *	bh,
		int	ofblocktype,
		bool	use_assets_only,
		int *	r_tot_info_items )

Gets the names and asset-data (if ID is an asset) of data-blocks in a file of a certain type. The data-blocks can be limited to assets.

Parameters

bh	The blendhandle to access.
ofblocktype	The type of names to get.
use_assets_only	Limit the result to assets only.
r_tot_info_items	The length of the returned list.

Returns: A BLI_linklist of BLODataBlockInfo *.

Note: The links should be freed using BLO_datablock_info_free() or the entire list using BLO_datablock_info_linklist_free().

Definition at line 111 of file readblenentry.cc.

References BLODataBlockInfo::asset_data, BLI_linklist_prepend(), blo_bhead_first(), blo_bhead_id_asset_data_address(), blo_bhead_id_name(), blo_bhead_next(), blo_bhead_prev(), BLO_CODE_DATA, BLO_CODE_ENDB, blo_read_asset_data_block(), BHead::code, DNA_struct_find_with_alias(), FileData::filesdna, BLODataBlockInfo::free_asset_data, MEM_mallocN, BLODataBlockInfo::name, BLODataBlockInfo::no_preview_found, and STRNCPY.

Referenced by filelist_readjob_list_lib().

◆ BLO_blendhandle_get_datablock_names()

LinkNode * BLO_blendhandle_get_datablock_names	(	BlendHandle *	bh,
		int	ofblocktype,
		bool	use_assets_only,
		int *	r_tot_names )

Gets the names of all the data-blocks in a file of a certain type (e.g. all the scene names in a file).

Parameters

bh	The blendhandle to access.
ofblocktype	The type of names to get.
use_assets_only	Only list IDs marked as assets.
r_tot_names	The length of the returned list.

Returns: A BLI_linklist of strings. The string links should be freed with MEM_freeN().

Definition at line 82 of file readblenentry.cc.

References BLI_linklist_prepend(), BLI_strdup(), blo_bhead_first(), blo_bhead_id_asset_data_address(), blo_bhead_id_name(), blo_bhead_next(), BLO_CODE_ENDB, and BHead::code.

Referenced by _bpy_names(), BKE_blendfile_link_append_context_item_idtypes_from_library_add(), and BLO_main_validate_libraries().

◆ BLO_blendhandle_get_linkable_groups()

LinkNode * BLO_blendhandle_get_linkable_groups ( BlendHandle * bh )

Gets the names of all the linkable data-block types available in a file. (e.g. "Scene", "Mesh", "Light", etc.).

Parameters

bh	The blendhandle to access.

Returns: A BLI_linklist of strings. The string links should be freed with MEM_freeN().

Definition at line 259 of file readblenentry.cc.

References BKE_idtype_idcode_is_linkable(), BKE_idtype_idcode_is_valid(), BKE_idtype_idcode_to_name(), BLI_gset_add(), BLI_gset_free(), BLI_gset_ptr_new(), BLI_linklist_prepend(), BLI_strdup(), blo_bhead_first(), blo_bhead_next(), BLO_CODE_ENDB, BHead::code, and str.

Referenced by filelist_readjob_list_lib().

◆ BLO_blendhandle_get_preview_for_id()

PreviewImage * BLO_blendhandle_get_preview_for_id	(	BlendHandle *	bh,
		int	ofblocktype,
		const char *	name )

Get the PreviewImage of a single data block in a file. (e.g. all the scene previews in a file).

Parameters

bh	The blendhandle to access.
ofblocktype	The type of names to get.
name	Name of the block without the ID_ prefix, to read the preview image from.

Returns: PreviewImage or NULL when no preview Images have been found. Caller owns the returned

Definition at line 218 of file readblenentry.cc.

References blo_bhead_first(), blo_bhead_id_name(), blo_bhead_next(), blo_blendhandle_read_preview_rects(), BLO_CODE_DATA, BLO_CODE_ENDB, BLO_library_read_struct(), DNA_struct_find_with_alias(), FileData::filesdna, MEM_dupallocN, MEM_freeN(), result, PreviewImage::runtime, and STREQ.

Referenced by imb_thumb_load_from_blend_id().

◆ blo_blendhandle_read_preview_rects()

static BHead * blo_blendhandle_read_preview_rects	(	FileData *	fd,
		BHead *	bhead,
		PreviewImage *	result,
		const PreviewImage *	preview_from_file )

static

Read the preview rects and store in result.

bhead should point to the block that sourced the preview_from_file parameter. bhead parameter is consumed. The correct bhead pointing to the next bhead in the file after the preview rects is returned by this function.

Parameters

fd	The filedata to read the data from.
bhead	should point to the block that sourced the `preview_from_file parameter`. bhead is consumed. the new bhead is returned by this function.
result	the Preview Image where the preview rect will be stored.
preview_from_file	The read PreviewImage where the bhead points to. The rects of this

Returns: PreviewImage or nullptr when no preview Images have been found. Caller owns the returned

Definition at line 188 of file readblenentry.cc.

References BKE_previewimg_finish(), BLI_assert, blo_bhead_next(), BLO_library_read_struct(), PreviewImage::h, BHead::len, NUM_ICON_SIZES, PreviewImage::rect, and PreviewImage::w.

Referenced by BLO_blendhandle_get_preview_for_id().

◆ BLO_datablock_info_free()

void BLO_datablock_info_free ( BLODataBlockInfo * datablock_info )

Frees contained data, not datablock_info itself.

Definition at line 45 of file readblenentry.cc.

References BLODataBlockInfo::asset_data, BKE_asset_metadata_free(), and BLODataBlockInfo::free_asset_data.

Referenced by BLO_datablock_info_linklist_free().

◆ BLO_datablock_info_linklist_free()

void BLO_datablock_info_linklist_free ( LinkNode * datablock_infos )

Can be used to free the list returned by BLO_blendhandle_get_datablock_info().

Definition at line 53 of file readblenentry.cc.

References BLI_linklist_free(), BLO_datablock_info_free(), and MEM_freeN().

Referenced by filelist_readjob_list_lib().

◆ BLO_read_do_version_after_setup()

void BLO_read_do_version_after_setup	(	Main *	new_bmain,
		BlendfileLinkAppendContext *	lapp_context,
		BlendFileReadReport *	reports )

Does versioning code that requires the Main data-base to be fully loaded and valid.

readfile's do_versions does not allow to create (or delete) IDs, and only operates on a single library at a time.

Called at the end of #setup_add_data from BKE's blendfile.cc.

Parameters

new_bmain the newly read Main data-base.

Definition at line 407 of file readblenentry.cc.

References do_versions_after_setup().

Referenced by BKE_blendfile_append(), BKE_blendfile_link(), and setup_app_data().

◆ BLO_read_from_file()

BlendFileData * BLO_read_from_file	(	const char *	filepath,
		eBLOReadSkip	skip_flags,
		BlendFileReadReport *	reports )

Open a blender file from a filepath. The function returns NULL and sets a report in the list if it cannot open the file.

Parameters

filepath	The path of the file to open.
reports	If the return value is NULL, errors indicating the cause of the failure.

Returns: The data of the file.

Definition at line 302 of file readblenentry.cc.

References BLI_assert, BLI_path_is_abs_from_cwd(), BLI_path_is_rel(), blo_filedata_free(), blo_filedata_from_file(), blo_read_file_internal(), and FileData::skip_flags.

Referenced by BKE_blendfile_read(), BKE_blendfile_userdef_read(), BKE_blendfile_workspace_config_read(), and BlendfileLoadingBaseTest::blendfile_load().

◆ BLO_read_from_memfile()

BlendFileData * BLO_read_from_memfile	(	Main *	oldmain,
		const char *	filepath,
		MemFile *	memfile,
		const BlendFileReadParams *	params,
		ReportList *	reports )

Used for undo/redo, skips part of libraries reading (assuming their data are already loaded & valid).

Parameters

oldmain	old main, from which we will keep libraries and other data-blocks that should not have changed.
filepath	current file, only for retrieving library data. Typically `BKE_main_blendfile_path(oldmain)`.

Definition at line 342 of file readblenentry.cc.

References BLI_assert, blo_cache_storage_init(), blo_cache_storage_old_bmain_clear(), blo_filedata_free(), blo_filedata_from_memfile(), blo_join_main(), blo_make_old_idmap_from_main(), blo_read_file_internal(), blo_split_main(), ListBase::first, FileData::old_mainlist, params, FileData::relabase, BlendFileReadReport::reports, FileData::skip_flags, and STRNCPY.

Referenced by BKE_blendfile_read_from_memfile(), and BLO_memfile_main_get().

◆ BLO_read_from_memory()

BlendFileData * BLO_read_from_memory	(	const void *	mem,
		int	memsize,
		eBLOReadSkip	skip_flags,
		ReportList *	reports )

Open a blender file from memory. The function returns NULL and sets a report in the list if it cannot open the file.

Parameters

mem	The file data.
memsize	The length of mem.
reports	If the return value is NULL, errors indicating the cause of the failure.

Returns: The data of the file.

Definition at line 322 of file readblenentry.cc.

References blo_filedata_free(), blo_filedata_from_memory(), blo_read_file_internal(), BlendFileReadReport::reports, and FileData::skip_flags.

Referenced by BKE_blendfile_read_from_memory(), BKE_blendfile_userdef_read_from_memory(), BKE_blendfile_workspace_config_read(), and load_main_from_memory().

◆ BLO_read_invalidate_message()

void BLO_read_invalidate_message	(	BlendHandle *	bh,
		Main *	bmain,
		const char *	message )

Mark the given Main (and the 'root' local one in case of lib-split Mains) as invalid, and generate an error report containing given message.

Definition at line 293 of file readblenentry.cc.

References blo_readfile_invalidate().

Functions

Detailed Description

Function Documentation

◆ BLO_blendfiledata_free()

◆ BLO_blendhandle_close()

◆ BLO_blendhandle_from_file()

◆ BLO_blendhandle_from_memory()

◆ BLO_blendhandle_get_datablock_info()

◆ BLO_blendhandle_get_datablock_names()

◆ BLO_blendhandle_get_linkable_groups()

◆ BLO_blendhandle_get_preview_for_id()

◆ blo_blendhandle_read_preview_rects()

◆ BLO_datablock_info_free()

◆ BLO_datablock_info_linklist_free()

◆ BLO_read_do_version_after_setup()

◆ BLO_read_from_file()

◆ BLO_read_from_memfile()

◆ BLO_read_from_memory()

◆ BLO_read_invalidate_message()