mirror of
https://github.com/vcmi/vcmi.git
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a05ae78e67
Disabled the following (for MSVC only) that couldn't (or shouldn't) be fixed. 4003: not enough actual parameters for macro 'identifier' 4250: 'class1' : inherits 'class2::member' via dominance 4251: 'type' : class 'type1' needs to have dll-interface to be used by clients of class 'type2' 4275: non dll-interface class 'type1' used as base for dll-interface class 'type2'
104 lines
2.7 KiB
C++
104 lines
2.7 KiB
C++
/*
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* BinaryDeserializer.cpp, part of VCMI engine
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*
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* Authors: listed in file AUTHORS in main folder
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*
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* License: GNU General Public License v2.0 or later
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* Full text of license available in license.txt file, in main folder
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*
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*/
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#include "StdInc.h"
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#include "BinaryDeserializer.h"
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#include "../filesystem/FileStream.h"
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#include "../registerTypes/RegisterTypes.h"
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extern template void registerTypes<BinaryDeserializer>(BinaryDeserializer & s);
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CLoadFile::CLoadFile(const boost::filesystem::path & fname, int minimalVersion)
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: serializer(this)
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{
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registerTypes(serializer);
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openNextFile(fname, minimalVersion);
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}
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CLoadFile::~CLoadFile()
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{
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}
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int CLoadFile::read(void * data, unsigned size)
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{
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sfile->read((char*)data,size);
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return size;
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}
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void CLoadFile::openNextFile(const boost::filesystem::path & fname, int minimalVersion)
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{
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assert(!serializer.reverseEndianess);
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assert(minimalVersion <= SERIALIZATION_VERSION);
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try
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{
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fName = fname.string();
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sfile = make_unique<FileStream>(fname, std::ios::in | std::ios::binary);
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sfile->exceptions(std::ifstream::failbit | std::ifstream::badbit); //we throw a lot anyway
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if(!(*sfile))
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THROW_FORMAT("Error: cannot open to read %s!", fName);
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//we can read
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char buffer[4];
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sfile->read(buffer, 4);
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if(std::memcmp(buffer,"VCMI",4))
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THROW_FORMAT("Error: not a VCMI file(%s)!", fName);
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serializer & serializer.fileVersion;
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if(serializer.fileVersion < minimalVersion)
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THROW_FORMAT("Error: too old file format (%s)!", fName);
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if(serializer.fileVersion > SERIALIZATION_VERSION)
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{
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logGlobal->warn("Warning format version mismatch: found %d when current is %d! (file %s)\n", serializer.fileVersion, SERIALIZATION_VERSION , fName);
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auto versionptr = (char*)&serializer.fileVersion;
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std::reverse(versionptr, versionptr + 4);
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logGlobal->warn("Version number reversed is %x, checking...", serializer.fileVersion);
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if(serializer.fileVersion == SERIALIZATION_VERSION)
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{
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logGlobal->warn("%s seems to have different endianness! Entering reversing mode.", fname.string());
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serializer.reverseEndianess = true;
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}
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else
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THROW_FORMAT("Error: too new file format (%s)!", fName);
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}
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}
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catch(...)
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{
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clear(); //if anything went wrong, we delete file and rethrow
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throw;
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}
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}
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void CLoadFile::reportState(vstd::CLoggerBase * out)
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{
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out->debug("CLoadFile");
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if(!!sfile && *sfile)
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out->debug("\tOpened %s Position: %d", fName, sfile->tellg());
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}
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void CLoadFile::clear()
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{
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sfile = nullptr;
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fName.clear();
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serializer.fileVersion = 0;
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}
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void CLoadFile::checkMagicBytes(const std::string &text)
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{
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std::string loaded = text;
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read((void*)loaded.data(), (unsigned int)text.length());
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if(loaded != text)
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throw std::runtime_error("Magic bytes doesn't match!");
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}
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