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I.iΠxM\49~vl`q0/*
Minetest
Copyright (C) 2013 celeron55, Perttu Ahola <celeron55@gmail.com>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2.1 of the License, or
(at your option) any later version.
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 Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#ifndef SERIALIZATION_HEADER
#define SERIALIZATION_HEADER
#include "irrlichttypes.h"
#include "exceptions.h"
#include <iostream>
#include "util/pointer.h"
/*
Map format serialization version
--------------------------------
For map data (blocks, nodes, sectors).
NOTE: The goal is to increment this so that saved maps will be
loadable by any version. Other compatibility is not
maintained.
0: original networked test with 1-byte nodes
1: update with 2-byte nodes
2: lighting is transmitted in param
3: optional fetching of far blocks
4: block compression
5: sector objects NOTE: block compression was left accidentally out
6: failed attempt at switching block compression on again
7: block compression switched on again
8: server-initiated block transfers and all kinds of stuff
9: block objects
10: water pressure
11: zlib'd blocks, block flags
12: UnlimitedHeightmap now uses interpolated areas
13: Mapgen v2
14: NodeMetadata
15: StaticObjects
16: larger maximum size of node metadata, and compression
17: MapBlocks contain timestamp
18: new generator (not really necessary, but it's there)
19: new content type handling
20: many existing content types translated to extended ones
21: dynamic content type allocation
22: minerals removed, facedir & wallmounted changed
23: new node metadata format
24: 16-bit node ids and node timers (never released as stable)
25: Improved node timer format
26: Never written; read the same as 25
*/
// This represents an uninitialized or invalid format
#define SER_FMT_VER_INVALID 255
// Highest supported serialization version
#define SER_FMT_VER_HIGHEST_READ 26
// Saved on disk version
#define SER_FMT_VER_HIGHEST_WRITE 25
// Lowest supported serialization version
#define SER_FMT_VER_LOWEST 0
#define ser_ver_supported(v) (v >= SER_FMT_VER_LOWEST && v <= SER_FMT_VER_HIGHEST_READ)
/*
Misc. serialization functions
*/
void compressZlib(SharedBuffer<u8> data, std::ostream &os, int level = -1);
void compressZlib(const std::string &data, std::ostream &os, int level = -1);
void decompressZlib(std::istream &is, std::ostream &os);
// These choose between zlib and a self-made one according to version
void compress(SharedBuffer<u8> data, std::ostream &os, u8 version);
//void compress(const std::string &data, std::ostream &os, u8 version);
void decompress(std::istream &is, std::ostream &os, u8 version);
#endif