133 lines
3.7 KiB
C++
133 lines
3.7 KiB
C++
/*
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* HLLib
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* Copyright (C) 2006-2013 Ryan Gregg
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later
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* version.
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*/
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#ifndef VPKFILE_H
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#define VPKFILE_H
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#include "stdafx.h"
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#include "Package.h"
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namespace HLLib
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{
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class HLLIB_API CVPKFile : public CPackage
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{
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private:
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#pragma pack(1)
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struct VPKHeader
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{
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hlUInt uiSignature; // Always 0x55aa1234.
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hlUInt uiVersion;
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hlUInt uiDirectoryLength;
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};
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// Added in version 2.
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struct VPKExtendedHeader
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{
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hlUInt uiDummy0;
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hlUInt uiArchiveHashLength;
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hlUInt uiExtraLength; // Looks like some more MD5 hashes.
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hlUInt uiDummy1;
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};
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struct VPKDirectoryEntry
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{
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hlUInt uiCRC;
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hlUShort uiPreloadBytes;
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hlUShort uiArchiveIndex;
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hlUInt uiEntryOffset;
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hlUInt uiEntryLength;
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hlUShort uiDummy0; // Always 0xffff.
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};
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// Added in version 2.
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struct VPKArchiveHash
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{
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hlUInt uiArchiveIndex;
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hlUInt uiArchiveOffset;
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hlUInt uiLength;
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hlByte lpHash[16]; // MD5
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};
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#pragma pack()
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struct VPKArchive
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{
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Streams::IStream *pStream;
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Mapping::CMapping *pMapping;
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};
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struct VPKDirectoryItem
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{
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VPKDirectoryItem(const hlChar *lpExtention, const hlChar *lpPath, const hlChar *lpName, const VPKDirectoryEntry *pDirectoryEntry, const hlVoid *lpPreloadData) : lpExtention(lpExtention), lpPath(lpPath), lpName(lpName), pDirectoryEntry(pDirectoryEntry), lpPreloadData(lpPreloadData)
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{
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}
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const hlChar *lpExtention;
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const hlChar *lpPath;
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const hlChar *lpName;
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const VPKDirectoryEntry *pDirectoryEntry;
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const hlVoid *lpPreloadData;
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};
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typedef std::list<VPKDirectoryItem *> CDirectoryItemList;
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private:
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static const char *lpAttributeNames[];
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static const char *lpItemAttributeNames[];
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Mapping::CView *pView;
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hlUInt uiArchiveCount;
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VPKArchive *lpArchives;
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const VPKHeader *pHeader;
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const VPKExtendedHeader *pExtendedHeader;
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const VPKArchiveHash *lpArchiveHashes;
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CDirectoryItemList *pDirectoryItems;
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public:
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CVPKFile();
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virtual ~CVPKFile();
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virtual HLPackageType GetType() const;
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virtual const hlChar *GetExtension() const;
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virtual const hlChar *GetDescription() const;
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protected:
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virtual hlBool MapDataStructures();
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virtual hlVoid UnmapDataStructures();
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virtual CDirectoryFolder *CreateRoot();
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virtual hlUInt GetAttributeCountInternal() const;
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virtual const hlChar *GetAttributeNameInternal(HLPackageAttribute eAttribute) const;
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virtual hlBool GetAttributeInternal(HLPackageAttribute eAttribute, HLAttribute &Attribute) const;
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virtual hlUInt GetItemAttributeCountInternal() const;
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virtual const hlChar *GetItemAttributeNameInternal(HLPackageAttribute eAttribute) const;
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virtual hlBool GetItemAttributeInternal(const CDirectoryItem *pItem, HLPackageAttribute eAttribute, HLAttribute &Attribute) const;
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virtual hlBool GetFileExtractableInternal(const CDirectoryFile *pFile, hlBool &bExtractable) const;
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virtual hlBool GetFileValidationInternal(const CDirectoryFile *pFile, HLValidation &eValidation) const;
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virtual hlBool GetFileSizeInternal(const CDirectoryFile *pFile, hlUInt &uiSize) const;
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virtual hlBool GetFileSizeOnDiskInternal(const CDirectoryFile *pFile, hlUInt &uiSize) const;
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virtual hlBool CreateStreamInternal(const CDirectoryFile *pFile, Streams::IStream *&pStream) const;
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virtual hlVoid ReleaseStreamInternal(Streams::IStream &Stream) const;
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private:
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hlBool MapString(const hlChar *&lpViewData, const hlChar *lpViewDirectoryDataEnd, const hlChar *&lpString);
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};
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}
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#endif
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