112 lines
2.9 KiB
C++
112 lines
2.9 KiB
C++
/* SPDX-License-Identifier: GPL-2.0-or-later
|
|
* Copyright 2004 Blender Foundation. All rights reserved. */
|
|
|
|
#pragma once
|
|
|
|
/** \file
|
|
* \ingroup blenloader
|
|
* External write-file function prototypes.
|
|
*/
|
|
|
|
#include "BLI_filereader.h"
|
|
|
|
struct GHash;
|
|
struct Scene;
|
|
|
|
typedef struct {
|
|
void *next, *prev;
|
|
const char *buf;
|
|
/** Size in bytes. */
|
|
size_t size;
|
|
/** When true, this chunk doesn't own the memory, it's shared with a previous #MemFileChunk */
|
|
bool is_identical;
|
|
/** When true, this chunk is also identical to the one in the next step (used by undo code to
|
|
* detect unchanged IDs).
|
|
* Defined when writing the next step (i.e. last undo step has those always false). */
|
|
bool is_identical_future;
|
|
/** Session UUID of the ID being currently written (MAIN_ID_SESSION_UUID_UNSET when not writing
|
|
* ID-related data). Used to find matching chunks in previous memundo step. */
|
|
uint id_session_uuid;
|
|
} MemFileChunk;
|
|
|
|
typedef struct MemFile {
|
|
ListBase chunks;
|
|
size_t size;
|
|
} MemFile;
|
|
|
|
typedef struct MemFileWriteData {
|
|
MemFile *written_memfile;
|
|
MemFile *reference_memfile;
|
|
|
|
uint current_id_session_uuid;
|
|
MemFileChunk *reference_current_chunk;
|
|
|
|
/** Maps an ID session uuid to its first reference MemFileChunk, if existing. */
|
|
struct GHash *id_session_uuid_mapping;
|
|
} MemFileWriteData;
|
|
|
|
typedef struct MemFileUndoData {
|
|
char filepath[1024]; /* FILE_MAX */
|
|
MemFile memfile;
|
|
size_t undo_size;
|
|
} MemFileUndoData;
|
|
|
|
/* FileReader-compatible wrapper for reading MemFiles */
|
|
typedef struct {
|
|
FileReader reader;
|
|
|
|
MemFile *memfile;
|
|
int undo_direction;
|
|
|
|
bool memchunk_identical;
|
|
} UndoReader;
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
/* Actually only used `writefile.c`. */
|
|
|
|
void BLO_memfile_write_init(MemFileWriteData *mem_data,
|
|
MemFile *written_memfile,
|
|
MemFile *reference_memfile);
|
|
void BLO_memfile_write_finalize(MemFileWriteData *mem_data);
|
|
|
|
void BLO_memfile_chunk_add(MemFileWriteData *mem_data, const char *buf, size_t size);
|
|
|
|
/* exports */
|
|
|
|
/**
|
|
* Not memfile itself.
|
|
*/
|
|
/* **************** support for memory-write, for undo buffers *************** */
|
|
|
|
extern void BLO_memfile_free(MemFile *memfile);
|
|
/**
|
|
* Result is that 'first' is being freed.
|
|
* to keep list of memfiles consistent, 'first' is always first in list.
|
|
*/
|
|
extern void BLO_memfile_merge(MemFile *first, MemFile *second);
|
|
/**
|
|
* Clear is_identical_future before adding next memfile.
|
|
*/
|
|
extern void BLO_memfile_clear_future(MemFile *memfile);
|
|
|
|
/* Utilities. */
|
|
|
|
extern struct Main *BLO_memfile_main_get(struct MemFile *memfile,
|
|
struct Main *bmain,
|
|
struct Scene **r_scene);
|
|
/**
|
|
* Saves .blend using undo buffer.
|
|
*
|
|
* \return success.
|
|
*/
|
|
extern bool BLO_memfile_write_file(struct MemFile *memfile, const char *filepath);
|
|
|
|
FileReader *BLO_memfile_new_filereader(MemFile *memfile, int undo_direction);
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|