MassBuilderSaveTool/src/UESaveFile/BinaryReader.cpp

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2021-09-22 17:37:50 +02:00
// MassBuilderSaveTool
// Copyright (C) 2021 Guillaume Jacquemin
//
// 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 3 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 General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program. If not, see <https://www.gnu.org/licenses/>.
#include <cstring>
#include <string>
#include "BinaryReader.h"
BinaryReader::BinaryReader(const std::string& filename) {
_file = std::fopen(filename.c_str(), "rb");
if(!_file) {
Utility::Error{} << "Couldn't open" << filename.c_str() << "for reading:\n"
<< std::strerror(errno);
}
}
BinaryReader::~BinaryReader() {
closeFile();
}
auto BinaryReader::open() -> bool {
return _file;
}
auto BinaryReader::eof() -> bool {
return std::feof(_file) != 0;
}
auto BinaryReader::position() -> Long {
return _ftelli64(_file);
}
void BinaryReader::closeFile() {
std::fclose(_file);
_file = nullptr;
}
auto BinaryReader::readChar(char& value) -> bool {
return std::fread(&value, sizeof(char), 1, _file) == 1;
}
auto BinaryReader::readByte(Byte& value) -> bool {
return std::fread(&value, sizeof(Byte), 1, _file) == 1;
}
auto BinaryReader::readUnsignedByte(UnsignedByte& value) -> bool {
return std::fread(&value, sizeof(UnsignedByte), 1, _file) == 1;
}
auto BinaryReader::readShort(Short& value) -> bool {
return std::fread(&value, sizeof(Short), 1, _file) == 1;
}
auto BinaryReader::readUnsignedShort(UnsignedShort& value) -> bool {
return std::fread(&value, sizeof(UnsignedShort), 1, _file) == 1;
}
auto BinaryReader::readInt(Int& value) -> bool {
return std::fread(&value, sizeof(Int), 1, _file) == 1;
}
auto BinaryReader::readUnsignedInt(UnsignedInt& value) -> bool {
return std::fread(&value, sizeof(UnsignedInt), 1, _file) == 1;
}
auto BinaryReader::readLong(Long& value) -> bool {
return std::fread(&value, sizeof(Long), 1, _file) == 1;
}
auto BinaryReader::readUnsignedLong(UnsignedLong& value) -> bool {
return std::fread(&value, sizeof(UnsignedLong), 1, _file) == 1;
}
auto BinaryReader::readFloat(Float& value) -> bool {
return std::fread(&value, sizeof(Float), 1, _file) == 1;
}
auto BinaryReader::readDouble(Double& value) -> bool {
return std::fread(&value, sizeof(Double), 1, _file) == 1;
}
auto BinaryReader::readArray(Containers::Array<char>& array, std::size_t count) -> bool {
if(array.size() < count) {
array = Containers::Array<char>{ValueInit, count};
}
return std::fread(array.data(), sizeof(char), count, _file) == count;
}
auto BinaryReader::readUEString(std::string& str) -> bool {
UnsignedInt length = 0;
if(!readUnsignedInt(length) || length == 0) {
return false;
}
str = std::string{};
str.resize(length - 1);
return std::fread(&str[0], sizeof(char), length, _file) == length;
}
auto BinaryReader::peekChar() -> Int {
Int c;
c = std::fgetc(_file);
std::ungetc(c, _file);
return c;
}