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https://github.com/libretro/scummvm.git
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117 lines
3.6 KiB
C++
117 lines
3.6 KiB
C++
/* ScummVM - Graphic Adventure Engine
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*
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* ScummVM is the legal property of its developers, whose names
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* are too numerous to list here. Please refer to the COPYRIGHT
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* file distributed with this source distribution.
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*
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* This program 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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*
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* This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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#ifndef MTROPOLIS_VFS_H
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#define MTROPOLIS_VFS_H
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#include "common/archive.h"
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#include "common/hash-str.h"
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namespace MTropolis {
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struct VirtualFileSystemLayout {
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VirtualFileSystemLayout();
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struct PathJunction {
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Common::String _srcPath;
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Common::String _destPath;
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};
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struct ArchiveJunction {
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Common::String _archiveName;
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Common::Archive *_archive;
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};
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char _pathSeparator;
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Common::Path _workspaceRoot;
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Common::Array<PathJunction> _pathJunctions;
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Common::Array<ArchiveJunction> _archiveJunctions;
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Common::Array<Common::String> _exclusions;
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};
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class VirtualFileSystem : public Common::Archive {
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public:
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explicit VirtualFileSystem(const VirtualFileSystemLayout &layout);
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bool hasFile(const Common::Path &path) const override;
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bool isPathDirectory(const Common::Path &path) const override;
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int listMembers(Common::ArchiveMemberList &list) const override;
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const Common::ArchiveMemberPtr getMember(const Common::Path &path) const override;
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Common::SeekableReadStream *createReadStreamForMember(const Common::Path &path) const override;
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Common::SeekableReadStream *createReadStreamForMemberAltStream(const Common::Path &path, Common::AltStreamType altStreamType) const override;
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int listMatchingMembers(Common::ArchiveMemberList &list, const Common::Path &pattern, bool matchPathComponents = false) const override;
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char getPathSeparator() const override;
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private:
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struct VirtualFile {
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Common::Path _virtualPath;
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Common::ArchiveMemberPtr _archiveMember;
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Common::ArchiveMemberPtr _vfsArchiveMember;
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};
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struct TempLayoutFile {
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Common::String _expandedPath;
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Common::String _expandedPathCanonical;
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Common::ArchiveMemberPtr _archiveMember;
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};
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class VFSArchiveMember : public Common::ArchiveMember {
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public:
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VFSArchiveMember(const VirtualFile *virtualFile, char pathSeparator);
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Common::SeekableReadStream *createReadStream() const override;
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Common::SeekableReadStream *createReadStreamForAltStream(Common::AltStreamType altStreamType) const override;
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Common::String getName() const override;
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Common::Path getPathInArchive() const override;
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Common::String getFileName() const override;
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bool isDirectory() const override;
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void listChildren(Common::ArchiveMemberList &childList, const char *pattern) const override;
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Common::U32String getDisplayName() const override;
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bool isInMacArchive() const override;
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private:
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const VirtualFile *_virtualFile;
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char _pathSeparator;
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};
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const VirtualFile *getVirtualFile(const Common::Path &path) const;
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static bool sortVirtualFiles(const VirtualFile &a, const VirtualFile &b);
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Common::String canonicalizePath(const Common::Path &path) const;
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char _pathSeparator;
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Common::Path _workspaceRoot;
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Common::Array<VirtualFile> _virtualFiles;
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Common::HashMap<Common::String, uint> _pathToVirtualFileIndex;
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};
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} // End of namespace MTropolis
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#endif
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