82 lines
3.5 KiB
Java
82 lines
3.5 KiB
Java
/*
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Copyright 2019-2022 Dmitry Isaenko
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This file is part of libKonogonka.
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libKonogonka 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 3 of the License, or
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(at your option) any later version.
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libKonogonka 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
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along with libKonogonka. If not, see <https://www.gnu.org/licenses/>.
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*/
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package libKonogonka.Tools.RomFs.view;
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import libKonogonka.Converter;
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import org.apache.logging.log4j.LogManager;
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import org.apache.logging.log4j.Logger;
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import java.nio.charset.StandardCharsets;
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import java.util.Arrays;
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import static libKonogonka.RainbowDump.formatDecHexString;
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public class FileMetaTablePlainView {
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private final static Logger log = LogManager.getLogger(FileMetaTablePlainView.class);
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public FileMetaTablePlainView(long fileMetadataTableLength, byte[] fileMetadataTable) {
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int i = 0;
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while (i < fileMetadataTableLength) {
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FileMeta fileMeta = new FileMeta();
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fileMeta.containingDirectoryOffset = Converter.getLEint(fileMetadataTable, i);
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i += 4;
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fileMeta.nextSiblingFileOffset = Converter.getLEint(fileMetadataTable, i);
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i += 4;
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fileMeta.fileDataOffset = Converter.getLElong(fileMetadataTable, i);
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i += 8;
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fileMeta.fileDataLength = Converter.getLElong(fileMetadataTable, i);
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i += 8;
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fileMeta.nextFileOffset = Converter.getLEint(fileMetadataTable, i);
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i += 4;
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fileMeta.fileNameLength = Converter.getLEint(fileMetadataTable, i);
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i += 4;
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fileMeta.fileName = new String(Arrays.copyOfRange(fileMetadataTable, i, i + fileMeta.fileNameLength), StandardCharsets.UTF_8);
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i += getRealNameSize(fileMeta.fileNameLength);
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log.debug(
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"- FILE -\n" +
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"Offset of Containing Directory " + formatDecHexString(fileMeta.containingDirectoryOffset) + "\n" +
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"Offset of next Sibling File " + formatDecHexString(fileMeta.nextSiblingFileOffset) + "\n" +
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"Offset of File's Data " + formatDecHexString(fileMeta.fileDataOffset) + "\n" +
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"Length of File's Data " + formatDecHexString(fileMeta.fileDataLength) + "\n" +
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"Offset of next File in the same Hash Table bucket " + formatDecHexString(fileMeta.nextFileOffset) + "\n" +
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"Name Length " + formatDecHexString(fileMeta.fileNameLength) + "\n" +
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"Name Length (rounded up to multiple of 4) " + fileMeta.fileName + "\n"
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);
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}
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}
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private int getRealNameSize(int value){
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if (value % 4 == 0)
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return value;
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return value + 4 - value % 4;
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}
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private static class FileMeta{
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int containingDirectoryOffset;
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int nextSiblingFileOffset;
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long fileDataOffset;
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long fileDataLength;
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int nextFileOffset;
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int fileNameLength;
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String fileName;
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}
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}
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