3 Copyright (C) 2013 celeron55, Perttu Ahola <celeron55@gmail.com>
5 This program is free software; you can redistribute it and/or modify
6 it under the terms of the GNU Lesser General Public License as published by
7 the Free Software Foundation; either version 2.1 of the License, or
8 (at your option) any later version.
10 This program is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 GNU Lesser General Public License for more details.
15 You should have received a copy of the GNU Lesser General Public License along
16 with this program; if not, write to the Free Software Foundation, Inc.,
17 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
20 #ifndef SERIALIZATION_HEADER
21 #define SERIALIZATION_HEADER
23 #include "irrlichttypes.h"
24 #include "exceptions.h"
26 #include "util/pointer.h"
29 Map format serialization version
30 --------------------------------
32 For map data (blocks, nodes, sectors).
34 NOTE: The goal is to increment this so that saved maps will be
35 loadable by any version. Other compatibility is not
38 0: original networked test with 1-byte nodes
39 1: update with 2-byte nodes
40 2: lighting is transmitted in param
41 3: optional fetching of far blocks
43 5: sector objects NOTE: block compression was left accidentally out
44 6: failed attempt at switching block compression on again
45 7: block compression switched on again
46 8: server-initiated block transfers and all kinds of stuff
49 11: zlib'd blocks, block flags
50 12: UnlimitedHeightmap now uses interpolated areas
54 16: larger maximum size of node metadata, and compression
55 17: MapBlocks contain timestamp
56 18: new generator (not really necessary, but it's there)
57 19: new content type handling
58 20: many existing content types translated to extended ones
59 21: dynamic content type allocation
60 22: minerals removed, facedir & wallmounted changed
61 23: new node metadata format
62 24: 16-bit node ids and node timers (never released as stable)
63 25: Improved node timer format
65 // This represents an uninitialized or invalid format
66 #define SER_FMT_VER_INVALID 255
67 // Highest supported serialization version
68 #define SER_FMT_VER_HIGHEST 25
69 // Lowest supported serialization version
70 #define SER_FMT_VER_LOWEST 0
72 #define ser_ver_supported(v) (v >= SER_FMT_VER_LOWEST && v <= SER_FMT_VER_HIGHEST)
75 Misc. serialization functions
78 void compressZlib(SharedBuffer<u8> data, std::ostream &os);
79 void compressZlib(const std::string &data, std::ostream &os);
80 void decompressZlib(std::istream &is, std::ostream &os);
82 // These choose between zlib and a self-made one according to version
83 void compress(SharedBuffer<u8> data, std::ostream &os, u8 version);
84 //void compress(const std::string &data, std::ostream &os, u8 version);
85 void decompress(std::istream &is, std::ostream &os, u8 version);