diff options
author | Ton Roosendaal <ton@blender.org> | 2004-09-05 17:43:51 +0400 |
---|---|---|
committer | Ton Roosendaal <ton@blender.org> | 2004-09-05 17:43:51 +0400 |
commit | bf83f6ddd87a76d30339057118f23c5651f9eff4 (patch) | |
tree | d28c5dbec49a60b2060dda9f17f48d08b404f806 /source/blender/blenloader/BLO_undofile.h | |
parent | 61e4707bdb6e9f64db0520c47f398d68e9322937 (diff) |
Second itteration of global undo system. Now based on:
- file-to-memory save
- incremental difference steps (compression)
everthing has been tightly coded to use minimum of memcpy or allocs. In
fact this system works with a single full buffer (=file) in memory, and undosteps as differences from it.
Speed gain is factor 4-8 faster. I've added it in CTRL+ALT+T timer menu for
a test. Please note the gain is especially in the undo-storing, not in
retrieving undo.
Also new: file read option to skip UI read (file menu). This now also is
default for the undo system.
Diffstat (limited to 'source/blender/blenloader/BLO_undofile.h')
-rw-r--r-- | source/blender/blenloader/BLO_undofile.h | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/source/blender/blenloader/BLO_undofile.h b/source/blender/blenloader/BLO_undofile.h new file mode 100644 index 00000000000..225b6bc15f5 --- /dev/null +++ b/source/blender/blenloader/BLO_undofile.h @@ -0,0 +1,58 @@ +/* + * $Id: + * + * ***** BEGIN GPL/BL DUAL 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. The Blender + * Foundation also sells licenses for use in proprietary software under + * the Blender License. See http://www.blender.org/BL/ for information + * about this. + * + * 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. + * + * The Original Code is Copyright (C) 2004 Blender Foundation. + * All rights reserved. + * + * The Original Code is: all of this file. + * + * Contributor(s): none yet. + * + * ***** END GPL/BL DUAL LICENSE BLOCK ***** + * external writefile function prototypes + */ + +#ifndef BLO_UNDOFILE_H +#define BLO_UNDOFILE_H + +typedef struct { + void *next, *prev; + + char *buf; + unsigned int ident, size; + +} MemFileChunk; + +typedef struct MemFile { + ListBase chunks; + unsigned int size; +} MemFile; + +/* actually only used writefile.c */ +extern void add_memfilechunk(MemFile *compare, MemFile *current, char *buf, unsigned int size); + +/* exports */ +extern void BLO_free_memfile(MemFile *memfile); +extern void BLO_merge_memfile(MemFile *first, MemFile *second); + +#endif + |