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blender-archive/source/blender/blenloader/BLO_undofile.h

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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.
2004-09-05 13:43:51 +00:00
/*
Patch from GSR that a) fixes a whole bunch of GPL/BL license blocks that were previously missed; and b) greatly increase my ohloh stats!
2008-04-16 22:40:48 +00:00
* ***** BEGIN GPL LICENSE BLOCK *****
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.
2004-09-05 13:43:51 +00:00
*
* 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
Patch from GSR that a) fixes a whole bunch of GPL/BL license blocks that were previously missed; and b) greatly increase my ohloh stats!
2008-04-16 22:40:48 +00:00
* of the License, or (at your option) any later version.
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.
2004-09-05 13:43:51 +00:00
*
* 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,
correct fsf address
2010-02-12 13:34:04 +00:00
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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.
2004-09-05 13:43:51 +00:00
*
* The Original Code is Copyright (C) 2004 Blender Foundation.
* All rights reserved.
*
* The Original Code is: all of this file.
*
* Contributor(s): none yet.
*
Patch from GSR that a) fixes a whole bunch of GPL/BL license blocks that were previously missed; and b) greatly increase my ohloh stats!
2008-04-16 22:40:48 +00:00
* ***** END GPL LICENSE BLOCK *****
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.
2004-09-05 13:43:51 +00:00
* external writefile function prototypes
*/
unify include guard defines, __$FILENAME__ without the underscores these clogged up the namespace for autocompleation which was annoying.
2012-02-17 18:59:41 +00:00
#ifndef __BLO_UNDOFILE_H__
#define __BLO_UNDOFILE_H__
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.
2004-09-05 13:43:51 +00:00
Bring blenloader module under data group. Rename the group to look a bit more sensible in the output.
2011-02-17 23:34:07 +00:00
/** \file BLO_undofile.h
doxygen: blender/blenloader tagged.
2011-02-27 20:35:41 +00:00
* \ingroup blenloader
Bring blenloader module under data group. Rename the group to look a bit more sensible in the output.
2011-02-17 23:34:07 +00:00
*/
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.
2004-09-05 13:43:51 +00:00
typedef struct {
void *next, *prev;
Cleanup: global undo (minor changes to internals) - Get memory usage from MemFile instead of MEM API avoids possible invalid when threads alloc memory. - Use size_t instead of uint and uintptr_t to store size. - Rename UndoElem.str -> filename - Rename MemFileChunk.ident -> is_identical
2018-03-27 14:44:17 +02:00
const char *buf;
/** Size in bytes. */
unsigned int size;
/** When true, this chunk doesn't own the memory, it's shared with a previous #MemFileChunk */
bool is_identical;
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.
2004-09-05 13:43:51 +00:00
} MemFileChunk;
typedef struct MemFile {
ListBase chunks;
Cleanup: global undo (minor changes to internals) - Get memory usage from MemFile instead of MEM API avoids possible invalid when threads alloc memory. - Use size_t instead of uint and uintptr_t to store size. - Rename UndoElem.str -> filename - Rename MemFileChunk.ident -> is_identical
2018-03-27 14:44:17 +02:00
size_t size;
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.
2004-09-05 13:43:51 +00:00
} MemFile;
/* actually only used writefile.c */
Cleanup: use BLO_memfile prefix
2015-04-18 17:33:04 +02:00
extern void memfile_chunk_add(MemFile *compare, MemFile *current, const char *buf, unsigned int size);
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.
2004-09-05 13:43:51 +00:00
/* exports */
Cleanup: use BLO_memfile prefix
2015-04-18 17:33:04 +02:00
extern void BLO_memfile_free(MemFile *memfile);
extern void BLO_memfile_merge(MemFile *first, MemFile *second);
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.
2004-09-05 13:43:51 +00:00
#endif
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