mirror of
https://github.com/peterdell/wudsn-ide.git
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91 lines
2.8 KiB
Java
91 lines
2.8 KiB
Java
/**
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* Copyright (C) 2009 - 2021 <a href="https://www.wudsn.com" target="_top">Peter Dell</a>
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*
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* This file is part of WUDSN IDE.
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*
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* WUDSN IDE 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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*
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* WUDSN IDE 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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*
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* You should have received a copy of the GNU General Public License
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* along with WUDSN IDE. If not, see <http://www.gnu.org/licenses/>.
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*/
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package com.wudsn.ide.hex.parser;
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import org.eclipse.jface.viewers.StyledString;
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import com.wudsn.ide.hex.Texts;
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import com.wudsn.ide.hex.HexEditorContentOutlineTreeObject;
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public class AtariDiskImageParser extends AtariParser {
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@Override
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public boolean parse(StyledString contentBuilder) {
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if (contentBuilder == null) {
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throw new IllegalArgumentException("Parameter 'contentBuilder' must not be null.");
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}
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boolean error = false;
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int length = fileContent.getLength();
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long offset = 0;
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HexEditorContentOutlineTreeObject treeObject;
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treeObject = printBlockHeader(contentBuilder, Texts.HEX_EDITOR_ATARI_DISK_IMAGE_HEADER, -1, "", offset, offset,
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offset + 15);
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offset = printBytes(treeObject, contentBuilder, offset, offset + 15, true, 0);
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contentBuilder.append("\n");
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boolean blockMode;
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blockMode = true;
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int mainSectorSize = fileContent.getByte(4) + 256 * fileContent.getByte(5);
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int bootSectorSize = mainSectorSize;
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if (bootSectorSize == 256 && (length % 256) == 128 + 16) {
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bootSectorSize = 128;
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}
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int startAddress = 0;
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int sectorCount;
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int sectorSize;
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sectorCount = 1;
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sectorSize = bootSectorSize;
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try {
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while (blockMode && !error) {
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treeObject = printBlockHeader(contentBuilder, Texts.HEX_EDITOR_ATARI_SECTOR_HEADER, sectorCount,
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Texts.HEX_EDITOR_ATARI_SECTOR_HEADER_PARAMETERS, offset, startAddress,
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startAddress + sectorSize - 1);
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offset = printBytes(treeObject, contentBuilder, offset, offset + sectorSize - 1, true, startAddress);
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contentBuilder.append("\n");
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if (offset >= length) {
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blockMode = false;
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} else if (length - offset < sectorSize) {
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error = true;
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}
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sectorCount++;
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if (sectorCount > 3) {
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sectorSize = mainSectorSize;
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}
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}
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} catch (RuntimeException ex) {
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contentBuilder.append(ex.toString());
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}
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if (error) {
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printBlockWithError(contentBuilder, Texts.HEX_EDITOR_ATARI_SECTOR_ERROR, length, offset);
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}
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return error;
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}
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}
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