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105 lines
2.3 KiB
C++
105 lines
2.3 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 CC_H
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#define CC_H
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#include "file.h"
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#include "str.h"
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#include "common/array.h"
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/**
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* Details of a single entry in a CC file index
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*/
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struct CCEntry {
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uint16 _id;
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int _offset;
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uint16 _size;
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byte _data[MAX_MEM_SIZE];
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CCEntry() : _id(0), _offset(0), _size(0) {
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memset(_data, 0, MAX_MEM_SIZE);
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}
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CCEntry(uint16 id, const byte *data, uint32 size) :
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_id(id), _offset(0), _size(size) {
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memcpy(_data, data, size);
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}
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};
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enum CCAccess { kRead = 0, kWrite = 1 };
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class CCArchive {
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private:
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Common::Array<CCEntry> _index;
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Common::File &_file;
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CCAccess _mode;
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private:
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/**
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* Convert a resource name to it's equivalent hash key
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*/
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uint16 convertNameToId(const Common::String &resourceName);
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/**
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* Loads an index from the file
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*/
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void loadIndex();
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/**
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* Saves the index to the file
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*/
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void saveIndex();
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/**
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* Saves the individual entries to the file
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*/
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void saveEntries();
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public:
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/**
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* Constructor
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*/
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CCArchive(Common::File &file, CCAccess mode) : _file(file), _mode(mode) {
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if (mode == kRead)
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loadIndex();
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}
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~CCArchive() {
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_file.close();
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}
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/**
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* In write mode, finishes the CC file, writing out the resulting content
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*/
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void close();
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/**
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* Adds an entry to the CC
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*/
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void add(const Common::String &name, Common::MemFile &f);
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/**
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* In read mode, gets a member
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*/
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Common::MemFile getMember(const Common::String &name);
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};
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#endif
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