#include <fcntl.h>
#include <limits.h>
#include <math.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include "BLI_utildefines.h"
#include "DNA_collection_types.h"
#include "DNA_fileglobal_types.h"
#include "DNA_genfile.h"
#include "DNA_sdna_types.h"
#include "BLI_bitmap.h"
#include "BLI_blenlib.h"
#include "BLI_mempool.h"
#include "MEM_guardedalloc.h"
#include "BKE_blender_version.h"
#include "BKE_bpath.h"
#include "BKE_global.h"
#include "BKE_idprop.h"
#include "BKE_idtype.h"
#include "BKE_layer.h"
#include "BKE_lib_id.h"
#include "BKE_lib_override.h"
#include "BKE_main.h"
#include "BKE_node.h"
#include "BKE_packedFile.h"
#include "BKE_report.h"
#include "BKE_workspace.h"
#include "BLO_blend_defs.h"
#include "BLO_blend_validate.h"
#include "BLO_read_write.h"
#include "BLO_readfile.h"
#include "BLO_undofile.h"
#include "BLO_writefile.h"
#include "readfile.h"
#include <errno.h>

Classes
struct	WriteWrap

struct	WriteData

struct	BlendWriter

struct	RenderInfo

Macros
#define	DNA_DEPRECATED_ALLOW

#define	U (((const UserDef )&U))

#define	MYWRITE_BUFFER_SIZE (MEM_SIZE_OPTIMAL(1 << 17)) /* 128kb */

#define	MYWRITE_MAX_CHUNK (MEM_SIZE_OPTIMAL(1 << 15)) /* ~32kb */

#define	ID_BUFFER_STATIC_SIZE 8192

Functions
Local Writing API 'mywrite'
static void	mywrite_flush (WriteData *wd)

static void	mywrite (WriteData wd, const void adr, size_t len)

static WriteData *	mywrite_begin (WriteWrap ww, MemFile compare, MemFile *current)

static bool	mywrite_end (WriteData *wd)

static void	mywrite_id_begin (WriteData wd, ID id)

static void	mywrite_id_end (WriteData wd, ID UNUSED(id))

File Writing (Private)
static bool	write_file_handle (Main mainvar, WriteWrap ww, MemFile compare, MemFile current, int write_flags, bool use_userdef, const BlendThumbnail *thumb)

static bool	do_history (const char name, ReportList reports)

File Writing (Public)
bool	BLO_write_file (Main mainvar, const char filepath, const int write_flags, const struct BlendFileWriteParams params, ReportList reports)

bool	BLO_write_file_mem (Main mainvar, MemFile compare, MemFile *current, int write_flags)

void	BLO_write_raw (BlendWriter writer, size_t size_in_bytes, const void data_ptr)

void	BLO_write_struct_by_name (BlendWriter writer, const char struct_name, const void *data_ptr)

void	BLO_write_struct_array_by_name (BlendWriter writer, const char struct_name, int array_size, const void *data_ptr)

void	BLO_write_struct_by_id (BlendWriter writer, int struct_id, const void data_ptr)

void	BLO_write_struct_at_address_by_id (BlendWriter writer, int struct_id, const void address, const void *data_ptr)

void	BLO_write_struct_at_address_by_id_with_filecode (BlendWriter writer, int filecode, int struct_id, const void address, const void *data_ptr)

void	BLO_write_struct_array_by_id (BlendWriter writer, int struct_id, int array_size, const void data_ptr)

void	BLO_write_struct_array_at_address_by_id (BlendWriter writer, int struct_id, int array_size, const void address, const void *data_ptr)

void	BLO_write_struct_list_by_id (BlendWriter writer, int struct_id, ListBase list)

void	BLO_write_struct_list_by_name (BlendWriter writer, const char struct_name, ListBase *list)

void	blo_write_id_struct (BlendWriter writer, int struct_id, const void id_address, const ID *id)

int	BLO_get_struct_id_by_name (BlendWriter writer, const char struct_name)

void	BLO_write_int32_array (BlendWriter writer, uint num, const int32_t data_ptr)

void	BLO_write_uint32_array (BlendWriter writer, uint num, const uint32_t data_ptr)

void	BLO_write_float_array (BlendWriter writer, uint num, const float data_ptr)

void	BLO_write_double_array (BlendWriter writer, uint num, const double data_ptr)

void	BLO_write_pointer_array (BlendWriter writer, uint num, const void data_ptr)

void	BLO_write_float3_array (BlendWriter writer, uint num, const float data_ptr)

void	BLO_write_string (BlendWriter writer, const char data_ptr)

bool	BLO_write_is_undo (BlendWriter *writer)

Internal Write Wrapper's (Abstracts Compression)
Use if we want to store how many bytes have been written to the file.
#define	FILE_HANDLE(ww) (ww)->_user_data.file_handle

#define	FILE_HANDLE(ww) (ww)->_user_data.gz_handle

enum	eWriteWrapType { WW_WRAP_NONE = 1 , WW_WRAP_ZLIB }

typedef struct WriteWrap	WriteWrap

static bool	ww_open_none (WriteWrap ww, const char filepath)

static bool	ww_close_none (WriteWrap *ww)

static size_t	ww_write_none (WriteWrap ww, const char buf, size_t buf_len)

static bool	ww_open_zlib (WriteWrap ww, const char filepath)

static bool	ww_close_zlib (WriteWrap *ww)

static size_t	ww_write_zlib (WriteWrap ww, const char buf, size_t buf_len)

static void	ww_handle_init (eWriteWrapType ww_type, WriteWrap *r_ww)

Generic DNA File Writing
#define	writestruct_at_address(wd, filecode, struct_id, nr, adr, data) writestruct_at_address_nr(wd, filecode, SDNA_TYPE_FROM_STRUCT(struct_id), nr, adr, data)

#define	writestruct(wd, filecode, struct_id, nr, adr) writestruct_nr(wd, filecode, SDNA_TYPE_FROM_STRUCT(struct_id), nr, adr)

#define	writelist(wd, filecode, struct_id, lb) writelist_nr(wd, filecode, SDNA_TYPE_FROM_STRUCT(struct_id), lb)

static void	writestruct_at_address_nr (WriteData wd, int filecode, const int struct_nr, int nr, const void adr, const void *data)

static void	writestruct_nr (WriteData wd, int filecode, const int struct_nr, int nr, const void adr)

static void	writedata (WriteData wd, int filecode, size_t len, const void adr)

static void	writelist_nr (WriteData wd, int filecode, const int struct_nr, const ListBase lb)

Write Data Type & Functions
typedef struct BlendWriter	BlendWriter

static WriteData *	writedata_new (WriteWrap *ww)

static void	writedata_do_write (WriteData wd, const void mem, size_t memlen)

static void	writedata_free (WriteData *wd)

Typed DNA File Writing
These functions are used by blender's .blend system for file saving/loading.
typedef struct RenderInfo	RenderInfo

static void	current_screen_compat (Main mainvar, bool use_active_win, bScreen r_screen, Scene r_scene, ViewLayer *r_view_layer)

static void	write_renderinfo (WriteData wd, Main mainvar)

static void	write_keymapitem (BlendWriter writer, const wmKeyMapItem kmi)

static void	write_userdef (BlendWriter writer, const UserDef userdef)

static void	write_libraries (WriteData wd, Main main)

static void	write_global (WriteData wd, int fileflags, Main mainvar)

static void	write_thumb (WriteData wd, const BlendThumbnail thumb)

Macro Definition Documentation

◆ DNA_DEPRECATED_ALLOW

#define DNA_DEPRECATED_ALLOW

FILE FORMAT

IFF-style structure (but not IFF compatible!)

Start file:

`BLENDER_V100`  `12` bytes  (version 1.00 is just an example).
                `V` = big endian, `v` = little endian.
                `_` = 4 byte pointer, `-` = 8 byte pointer.

data-blocks: (also see struct BHead).

`bh.code`       `char[4]` see `BLO_blend_defs.h` for a list of known types.
`bh.len`        `int32` length data after BHead in bytes.
`bh.old`        `void *` old pointer (the address at the time of writing the file).
`bh.SDNAnr`     `int32` struct index of structs stored in DNA1 data.
`bh.nr`         `int32` in case of array: number of structs.
data
...
...

Almost all data in Blender are structures. Each struct saved gets a BHead header. With BHead the struct can be linked again and compared with #StructDNA.

WRITE

Preferred writing order: (not really a must, but why would you do it random?) Any case: direct data is ALWAYS after the lib block.

(Local file data)

for each LibBlock
- write LibBlock
- write associated direct data (External file data)
per library
- write library block
- per LibBlock
  - write the ID of LibBlock
write TEST (RenderInfo struct. 128x128 blend file preview is optional).
write GLOB (FileGlobal struct) (some global vars).
write DNA1 (SDNA struct)
write USER (UserDef struct) if filename is ~/.config/blender/X.XX/config/startup.blend.

Definition at line 94 of file writefile.c.

◆ FILE_HANDLE [1/2]

#define FILE_HANDLE ( ww ) (ww)->_user_data.file_handle

Definition at line 196 of file writefile.c.

◆ FILE_HANDLE [2/2]

#define FILE_HANDLE ( ww ) (ww)->_user_data.gz_handle

Definition at line 196 of file writefile.c.

◆ ID_BUFFER_STATIC_SIZE

#define ID_BUFFER_STATIC_SIZE 8192

◆ MYWRITE_BUFFER_SIZE

#define MYWRITE_BUFFER_SIZE (MEM_SIZE_OPTIMAL(1 << 17)) /* 128kb */

Definition at line 137 of file writefile.c.

◆ MYWRITE_MAX_CHUNK

#define MYWRITE_MAX_CHUNK (MEM_SIZE_OPTIMAL(1 << 15)) /* ~32kb */

Definition at line 138 of file writefile.c.

◆ U

#define U (*((const UserDef *)&U))

Definition at line 132 of file writefile.c.

◆ writelist

#define writelist	(	wd,
		filecode,
		struct_id,
		lb
	)	writelist_nr(wd, filecode, SDNA_TYPE_FROM_STRUCT(struct_id), lb)

Definition at line 598 of file writefile.c.

◆ writestruct

#define writestruct	(	wd,
		filecode,
		struct_id,
		nr,
		adr
	)	writestruct_nr(wd, filecode, SDNA_TYPE_FROM_STRUCT(struct_id), nr, adr)

Definition at line 595 of file writefile.c.

◆ writestruct_at_address

#define writestruct_at_address	(	wd,
		filecode,
		struct_id,
		nr,
		adr,
		data
	)	writestruct_at_address_nr(wd, filecode, SDNA_TYPE_FROM_STRUCT(struct_id), nr, adr, data)

Definition at line 592 of file writefile.c.

Typedef Documentation

◆ BlendWriter

typedef struct BlendWriter BlendWriter

◆ RenderInfo

typedef struct RenderInfo RenderInfo

◆ WriteWrap

typedef struct WriteWrap WriteWrap

Definition at line 1 of file writefile.c.

Enumeration Type Documentation

◆ eWriteWrapType

enum eWriteWrapType

Enumerator
WW_WRAP_NONE
WW_WRAP_ZLIB

Definition at line 147 of file writefile.c.

Function Documentation

◆ BLO_get_struct_id_by_name()

int BLO_get_struct_id_by_name	(	BlendWriter *	writer,
		const char *	struct_name
	)

Definition at line 1362 of file writefile.c.

References DNA_struct_find_nr(), WriteData::sdna, and BlendWriter::wd.

Referenced by BLO_write_struct_array_by_name(), and BLO_write_struct_list_by_name().

◆ BLO_write_double_array()

void BLO_write_double_array	(	BlendWriter *	writer,
		uint	num,
		const double *	data_ptr
	)

Definition at line 1383 of file writefile.c.

References BLO_write_raw().

◆ BLO_write_file()

bool BLO_write_file	(	Main *	mainvar,
		const char *	filepath,
		const int	write_flags,
		const struct BlendFileWriteParams *	params,
		ReportList *	reports
	)

Returns: Success.

Definition at line 1128 of file writefile.c.

References BKE_bpath_absolute_convert(), BKE_bpath_list_backup(), BKE_bpath_list_free(), BKE_bpath_list_restore(), BKE_bpath_relative_convert(), BKE_bpath_relative_rebase(), BKE_BPATH_TRAVERSE_SKIP_LIBRARY, BKE_BPATH_TRAVERSE_SKIP_MULTIFILE, BKE_report(), BKE_reportf(), BLI_assert, BLI_path_cmp, BLI_path_normalize(), BLI_rename(), BLI_snprintf(), BLI_split_dir_part(), BLO_main_validate_libraries(), BLO_main_validate_shapekeys(), BLO_WRITE_PATH_REMAP_ABSOLUTE, BLO_WRITE_PATH_REMAP_NONE, BLO_WRITE_PATH_REMAP_RELATIVE, BLO_WRITE_PATH_REMAP_RELATIVE_ALL, WriteWrap::close, do_history(), err, FILE_MAX, G, G_DEBUG_IO, G_FILE_COMPRESS, Main::lock, Main::name, NULL, WriteWrap::open, params, RPT_ERROR, RPT_INFO, UNLIKELY, write_file_handle(), ww_handle_init(), WW_WRAP_NONE, and WW_WRAP_ZLIB.

Referenced by BKE_blendfile_userdef_write(), BKE_blendfile_write_partial(), BKE_memfile_undo_encode(), wm_autosave_write(), WM_exit_ex(), wm_file_write(), wm_homefile_write_exec(), and write_crash_blend().

◆ BLO_write_file_mem()

bool BLO_write_file_mem	(	Main *	mainvar,
		MemFile *	compare,
		MemFile *	current,
		int	write_flags
	)

Returns: Success.

Definition at line 1276 of file writefile.c.

References err, NULL, and write_file_handle().

Referenced by BKE_memfile_undo_encode().

◆ BLO_write_float3_array()

void BLO_write_float3_array	(	BlendWriter *	writer,
		uint	num,
		const float *	data_ptr
	)

Definition at line 1393 of file writefile.c.

References BLO_write_raw().

Referenced by blendWrite(), and write_mdisps().

◆ BLO_write_float_array()

void BLO_write_float_array	(	BlendWriter *	writer,
		uint	num,
		const float *	data_ptr
	)

Definition at line 1378 of file writefile.c.

References BLO_write_raw().

Referenced by BKE_constraint_blend_write(), BKE_fmodifiers_blend_write(), blendWrite(), curve_blend_write(), and mask_blend_write().

◆ blo_write_id_struct()

void blo_write_id_struct	(	BlendWriter *	writer,
		int	struct_id,
		const void *	id_address,
		const ID *	id
	)

Definition at line 1357 of file writefile.c.

References GS, id, ID::name, BlendWriter::wd, and writestruct_at_address_nr().

◆ BLO_write_int32_array()

void BLO_write_int32_array	(	BlendWriter *	writer,
		uint	num,
		const int32_t *	data_ptr
	)

Definition at line 1368 of file writefile.c.

References BLO_write_raw().

Referenced by blendWrite().

◆ BLO_write_is_undo()

bool BLO_write_is_undo ( BlendWriter * writer )

Sometimes different data is written depending on whether the file is saved to disk or used for undo. This function returns true when the current file-writing is done for undo.

Definition at line 1412 of file writefile.c.

References WriteData::use_memfile, and BlendWriter::wd.

Referenced by action_blend_write(), armature_blend_write(), brush_blend_write(), cache_file_blend_write(), camera_blend_write(), collection_blend_write(), curve_blend_write(), CustomData_blend_write(), greasepencil_blend_write(), hair_blend_write(), image_blend_write(), lattice_blend_write(), light_blend_write(), lightprobe_blend_write(), linestyle_blend_write(), mask_blend_write(), material_blend_write(), mesh_blend_write(), metaball_blend_write(), movieclip_blend_write(), ntree_blend_write(), ntreeBlendWrite(), object_blend_write(), paint_curve_blend_write(), palette_blend_write(), particle_settings_blend_write(), pointcloud_blend_write(), scene_blend_write(), screen_blend_write(), shapekey_blend_write(), simulation_blend_write(), sound_blend_write(), speaker_blend_write(), text_blend_write(), texture_blend_write(), vfont_blend_write(), volume_blend_write(), and world_blend_write().

◆ BLO_write_pointer_array()

void BLO_write_pointer_array	(	BlendWriter *	writer,
		uint	num,
		const void *	data_ptr
	)

Definition at line 1388 of file writefile.c.

References BLO_write_raw().

Referenced by curve_blend_write(), greasepencil_blend_write(), hair_blend_write(), mesh_blend_write(), metaball_blend_write(), object_blend_write(), pointcloud_blend_write(), volume_blend_write(), and write_moviePlaneTracks().

◆ BLO_write_raw()

void BLO_write_raw	(	BlendWriter *	writer,
		size_t	size_in_bytes,
		const void *	data_ptr
	)

◆ BLO_write_string()

void BLO_write_string	(	BlendWriter *	writer,
		const char *	data_ptr
	)

Write a null terminated string.

Definition at line 1401 of file writefile.c.

References BLO_write_raw(), and NULL.

Referenced by BKE_animdata_blend_write(), BKE_asset_metadata_write(), BKE_fcurve_blend_write(), BKE_id_blend_write(), BKE_keyingsets_blend_write(), ntreeBlendWrite(), text_blend_write(), and write_area().

◆ BLO_write_struct_array_at_address_by_id()

void BLO_write_struct_array_at_address_by_id	(	BlendWriter *	writer,
		int	struct_id,
		int	array_size,
		const void *	address,
		const void *	data_ptr
	)

Definition at line 1336 of file writefile.c.

References DATA, BlendWriter::wd, and writestruct_at_address_nr().

◆ BLO_write_struct_array_by_id()

void BLO_write_struct_array_by_id	(	BlendWriter *	writer,
		int	struct_id,
		int	array_size,
		const void *	data_ptr
	)

Definition at line 1328 of file writefile.c.

References DATA, BlendWriter::wd, and writestruct_nr().

Referenced by BLO_write_struct_array_by_name().

◆ BLO_write_struct_array_by_name()

void BLO_write_struct_array_by_name	(	BlendWriter *	writer,
		const char *	struct_name,
		int	array_size,
		const void *	data_ptr
	)

Definition at line 1296 of file writefile.c.

References BLO_get_struct_id_by_name(), BLO_write_struct_array_by_id(), and UNLIKELY.

Referenced by BKE_ptcache_blend_write(), BLO_write_struct_by_name(), and CustomData_blend_write().

◆ BLO_write_struct_at_address_by_id()

void BLO_write_struct_at_address_by_id	(	BlendWriter *	writer,
		int	struct_id,
		const void *	address,
		const void *	data_ptr
	)

Definition at line 1314 of file writefile.c.

References BLO_write_struct_at_address_by_id_with_filecode(), and DATA.

◆ BLO_write_struct_at_address_by_id_with_filecode()

void BLO_write_struct_at_address_by_id_with_filecode	(	BlendWriter *	writer,
		int	filecode,
		int	struct_id,
		const void *	address,
		const void *	data_ptr
	)

Definition at line 1322 of file writefile.c.

References BlendWriter::wd, and writestruct_at_address_nr().

Referenced by BLO_write_struct_at_address_by_id().

◆ BLO_write_struct_by_id()

void BLO_write_struct_by_id	(	BlendWriter *	writer,
		int	struct_id,
		const void *	data_ptr
	)

Definition at line 1309 of file writefile.c.

References DATA, BlendWriter::wd, and writestruct_nr().

Referenced by write_linestyle_alpha_modifiers(), write_linestyle_color_modifiers(), write_linestyle_geometry_modifiers(), and write_linestyle_thickness_modifiers().

◆ BLO_write_struct_by_name()

void BLO_write_struct_by_name	(	BlendWriter *	writer,
		const char *	struct_name,
		const void *	data_ptr
	)

Definition at line 1291 of file writefile.c.

References BLO_write_struct_array_by_name().

Referenced by BKE_constraint_blend_write(), BKE_fmodifiers_blend_write(), BKE_gpencil_modifier_blend_write(), BKE_modifier_blend_write(), BKE_pose_blend_write(), BKE_shaderfx_blend_write(), ntreeBlendWrite(), and SEQ_modifier_blend_write().

◆ BLO_write_struct_list_by_id()

void BLO_write_struct_list_by_id	(	BlendWriter *	writer,
		int	struct_id,
		ListBase *	list
	)

Definition at line 1342 of file writefile.c.

References DATA, BlendWriter::wd, and writelist_nr().

Referenced by BLO_write_struct_list_by_name().

◆ BLO_write_struct_list_by_name()

void BLO_write_struct_list_by_name	(	BlendWriter *	writer,
		const char *	struct_name,
		ListBase *	list
	)

Definition at line 1347 of file writefile.c.

References BLO_get_struct_id_by_name(), BLO_write_struct_list_by_id(), and UNLIKELY.

◆ BLO_write_uint32_array()

void BLO_write_uint32_array	(	BlendWriter *	writer,
		uint	num,
		const uint32_t *	data_ptr
	)

Definition at line 1373 of file writefile.c.

References BLO_write_raw().

Referenced by BKE_previewimg_blend_write(), and blendWrite().

◆ current_screen_compat()

static void current_screen_compat	(	Main *	mainvar,
		bool	use_active_win,
		bScreen **	r_screen,
		Scene **	r_scene,
		ViewLayer **	r_view_layer
	)

static

Take care using 'use_active_win', since we wont want the currently active window to change which scene renders (currently only used for undo).

Definition at line 613 of file writefile.c.

References wmWindow::active, BKE_view_layer_find(), BKE_workspace_active_screen_get(), ListBase::first, wmWindow::next, NULL, wmWindow::scene, wmWindow::view_layer_name, wmWindowManager::windows, Main::wm, and wmWindow::workspace_hook.

Referenced by write_global(), and write_renderinfo().

◆ do_history()

static bool do_history	(	const char *	name,
		ReportList *	reports
	)

static

Definition at line 1079 of file writefile.c.

References BKE_report(), BLI_exists(), BLI_rename(), BLI_snprintf(), FILE_MAX, and RPT_ERROR.

Referenced by BLO_write_file(), uvedit_edge_select_enable(), uvedit_edge_select_set(), uvedit_edge_select_set_with_sticky(), uvedit_face_select_enable(), uvedit_face_select_set(), uvedit_face_select_set_with_sticky(), uvedit_uv_select_enable(), uvedit_uv_select_set(), and uvedit_uv_select_set_with_sticky().

◆ mywrite()

static void mywrite	(	WriteData *	wd,
		const void *	adr,
		size_t	len
	)

static

Low level WRITE(2) wrapper that buffers data

Parameters

adr	Pointer to new chunk of data
len	Length of new chunk of data

Definition at line 356 of file writefile.c.

References BLI_assert, WriteData::buf, WriteData::buf_used_len, WriteData::error, len, MIN2, MYWRITE_BUFFER_SIZE, MYWRITE_MAX_CHUNK, NULL, UNLIKELY, and writedata_do_write().

Referenced by write_file_handle(), writedata(), and writestruct_at_address_nr().

◆ mywrite_begin()

static WriteData* mywrite_begin	(	WriteWrap *	ww,
		MemFile *	compare,
		MemFile *	current
	)

static

BeGiN initializer for mywrite

Parameters

ww	File write wrapper.
compare	Previous memory file (can be NULL).
current	The current memory file (can be NULL).

Warning: Talks to other functions with global parameters

Definition at line 412 of file writefile.c.

References BLO_memfile_write_init(), WriteData::mem, NULL, WriteData::use_memfile, and writedata_new().

Referenced by write_file_handle().

◆ mywrite_end()

static bool mywrite_end ( WriteData * wd )

static

END the mywrite wrapper

Returns: 1 if write failed; unknown global variable otherwise

Warning: Talks to other functions with global parameters

Definition at line 430 of file writefile.c.

References BLO_memfile_write_finalize(), WriteData::buf, WriteData::buf_used_len, err, WriteData::error, WriteData::mem, WriteData::use_memfile, writedata_do_write(), and writedata_free().

Referenced by write_file_handle().

◆ mywrite_flush()

static void mywrite_flush ( WriteData * wd )

static

Flush helps the de-duplicating memory for undo-save by logically segmenting data, so differences in one part of memory won't cause unrelated data to be duplicated.

Definition at line 343 of file writefile.c.

References WriteData::buf, WriteData::buf_used_len, and writedata_do_write().

Referenced by mywrite_id_end(), write_file_handle(), and write_libraries().

◆ mywrite_id_begin()

static void mywrite_id_begin	(	WriteData *	wd,
		ID *	id
	)

static

Start writing of data related to a single ID.

Only does something when storing an undo step.

Definition at line 452 of file writefile.c.

References BLI_ghash_lookup(), MemFileWriteData::current_id_session_uuid, id, MemFileChunk::id_session_uuid, MemFileWriteData::id_session_uuid_mapping, WriteData::mem, NULL, POINTER_FROM_UINT, MemFileChunk::prev, MemFileWriteData::reference_current_chunk, ID::session_uuid, and WriteData::use_memfile.

Referenced by write_file_handle().

◆ mywrite_id_end()

static void mywrite_id_end	(	WriteData *	wd,
		ID *	UNUSEDid
	)

static

Start writing of data related to a single ID.

Only does something when storing an undo step.

Definition at line 482 of file writefile.c.

References MemFileWriteData::current_id_session_uuid, MAIN_ID_SESSION_UUID_UNSET, WriteData::mem, mywrite_flush(), and WriteData::use_memfile.

Referenced by write_file_handle().

◆ write_file_handle()

static bool write_file_handle	(	Main *	mainvar,
		WriteWrap *	ww,
		MemFile *	compare,
		MemFile *	current,
		int	write_flags,
		bool	use_userdef,
		const BlendThumbnail *	thumb
	)