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95 lines
2.6 KiB
C++
95 lines
2.6 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
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (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, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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*/
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#ifndef GLK_BLORB_H
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#define GLK_BLORB_H
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#include "glk/glk_types.h"
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#include "glk/streams.h"
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#include "common/archive.h"
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#include "common/array.h"
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namespace Glk {
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/**
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* Describes one chunk of the Blorb file.
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*/
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struct ChunkEntry {
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uint _type;
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uint _number;
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uint _id;
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size_t _offset;
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size_t _size;
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Common::String _filename;
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};
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/**
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* Blorb file manager
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*/
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class Blorb : public Common::Archive {
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private:
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Common::String _filename;
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InterpreterType _interpType;
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Common::Array<ChunkEntry> _chunks; ///< list of chunk descriptors
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private:
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/**
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* Parses the Blorb file index to load in a list of the chunks
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*/
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Common::ErrorCode load();
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public:
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/**
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* Constructor
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*/
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Blorb(const Common::String &filename, InterpreterType interpType);
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/**
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* Check if a member with the given name is present in the Archive.
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* Patterns are not allowed, as this is meant to be a quick File::exists()
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* replacement.
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*/
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virtual bool hasFile(const Common::String &name) const override;
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/**
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* Add all members of the Archive to list.
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* Must only append to list, and not remove elements from it.
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*
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* @return the number of names added to list
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*/
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virtual int listMembers(Common::ArchiveMemberList &list) const override;
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/**
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* Returns a ArchiveMember representation of the given file.
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*/
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virtual const Common::ArchiveMemberPtr getMember(const Common::String &name) const override;
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/**
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* Create a stream bound to a member with the specified name in the
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* archive. If no member with this name exists, 0 is returned.
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* @return the newly created input stream
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*/
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virtual Common::SeekableReadStream *createReadStreamForMember(const Common::String &name) const override;
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};
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} // End of namespace Glk
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#endif
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