mirror of https://github.com/minetest/minetest.git
79 lines
2.6 KiB
C++
79 lines
2.6 KiB
C++
/*
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Minetest-c55
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Copyright (C) 2010 celeron55, Perttu Ahola <celeron55@gmail.com>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License along
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with this program; if not, write to the Free Software Foundation, Inc.,
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51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#ifndef SERIALIZATION_HEADER
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#define SERIALIZATION_HEADER
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#include "common_irrlicht.h"
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#include "exceptions.h"
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#include <iostream>
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#include "utility.h"
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/*
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NOTE: The goal is to increment this so that saved maps will be
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loadable by any version. Other compatibility is not
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maintained.
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Serialization format versions (for raw map data (blocks, nodes, sectors)):
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== Unsupported ==
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0: original networked test with 1-byte nodes
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1: update with 2-byte nodes
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== Supported ==
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2: lighting is transmitted in param
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3: optional fetching of far blocks
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4: block compression
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5: sector objects NOTE: block compression was left accidentally out
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6: failed attempt at switching block compression on again
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7: block compression switched on again
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8: (dev) server-initiated block transfers and all kinds of stuff
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9: (dev) block objects
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10: (dev) water pressure
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11: (dev) zlib'd blocks, block flags
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12: (dev) UnlimitedHeightmap now uses interpolated areas
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13: (dev) Mapgen v2
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14: (dev) NodeMetadata
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15: (dev) StaticObjects
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16: (dev) larger maximum size of node metadata, and compression
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*/
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// This represents an uninitialized or invalid format
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#define SER_FMT_VER_INVALID 255
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// Highest supported serialization version
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#define SER_FMT_VER_HIGHEST 16
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// Lowest supported serialization version
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#define SER_FMT_VER_LOWEST 0
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#define ser_ver_supported(v) (v >= SER_FMT_VER_LOWEST && v <= SER_FMT_VER_HIGHEST)
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void compressZlib(SharedBuffer<u8> data, std::ostream &os);
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void compressZlib(const std::string &data, std::ostream &os);
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void decompressZlib(std::istream &is, std::ostream &os);
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void compress(SharedBuffer<u8> data, std::ostream &os, u8 version);
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//void compress(const std::string &data, std::ostream &os, u8 version);
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void decompress(std::istream &is, std::ostream &os, u8 version);
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/*class Serializable
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{
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public:
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void serialize(std::ostream &os, u8 version) = 0;
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void deSerialize(std::istream &istr);
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};*/
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#endif
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