HLLib/HLLib/VPKFile.h

113 lines
3.3 KiB
C++

/*
* HLLib
* Copyright (C) 2006-2010 Ryan Gregg
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later
* version.
*/
#ifndef VPKFILE_H
#define VPKFILE_H
#include "stdafx.h"
#include "Package.h"
namespace HLLib
{
class HLLIB_API CVPKFile : public CPackage
{
private:
#pragma pack(1)
struct VPKHeader
{
hlUInt uiSignature; // Always 0x55aa1234.
hlUInt uiVersion;
hlUInt uiDirectoryLength;
};
struct VPKDirectoryEntry
{
hlUInt uiCRC;
hlUShort uiPreloadBytes;
hlUShort uiArchiveIndex;
hlUInt uiEntryOffset;
hlUInt uiEntryLength;
hlUShort uiDummy0; // Always 0xffff.
};
#pragma pack()
struct VPKArchive
{
Streams::IStream *pStream;
Mapping::CMapping *pMapping;
};
struct VPKDirectoryItem
{
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)
{
}
const hlChar *lpExtention;
const hlChar *lpPath;
const hlChar *lpName;
const VPKDirectoryEntry *pDirectoryEntry;
const hlVoid *lpPreloadData;
};
typedef std::list<VPKDirectoryItem *> CDirectoryItemList;
private:
static const char *lpAttributeNames[];
static const char *lpItemAttributeNames[];
Mapping::CView *pView;
hlUInt uiArchiveCount;
VPKArchive *lpArchives;
const VPKHeader *pHeader;
CDirectoryItemList *pDirectoryItems;
public:
CVPKFile();
virtual ~CVPKFile();
virtual HLPackageType GetType() const;
virtual const hlChar *GetExtension() const;
virtual const hlChar *GetDescription() const;
protected:
virtual hlBool MapDataStructures();
virtual hlVoid UnmapDataStructures();
virtual CDirectoryFolder *CreateRoot();
virtual hlUInt GetAttributeCountInternal() const;
virtual const hlChar *GetAttributeNameInternal(HLPackageAttribute eAttribute) const;
virtual hlBool GetAttributeInternal(HLPackageAttribute eAttribute, HLAttribute &Attribute) const;
virtual hlUInt GetItemAttributeCountInternal() const;
virtual const hlChar *GetItemAttributeNameInternal(HLPackageAttribute eAttribute) const;
virtual hlBool GetItemAttributeInternal(const CDirectoryItem *pItem, HLPackageAttribute eAttribute, HLAttribute &Attribute) const;
virtual hlBool GetFileExtractableInternal(const CDirectoryFile *pFile, hlBool &bExtractable) const;
virtual hlBool GetFileValidationInternal(const CDirectoryFile *pFile, HLValidation &eValidation) const;
virtual hlBool GetFileSizeInternal(const CDirectoryFile *pFile, hlUInt &uiSize) const;
virtual hlBool GetFileSizeOnDiskInternal(const CDirectoryFile *pFile, hlUInt &uiSize) const;
virtual hlBool CreateStreamInternal(const CDirectoryFile *pFile, Streams::IStream *&pStream) const;
virtual hlVoid ReleaseStreamInternal(Streams::IStream &Stream) const;
private:
hlBool MapString(const hlChar *&lpViewData, const hlChar *lpViewDirectoryDataEnd, const hlChar *&lpString);
};
}
#endif