mirror of
https://github.com/libretro/scummvm.git
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99 lines
2.7 KiB
C++
99 lines
2.7 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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* 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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* 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 TOON_RESOURCE_H
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#define TOON_RESOURCE_H
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#include "common/array.h"
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#include "common/str.h"
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#include "common/file.h"
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#include "common/stream.h"
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#define MAX_CACHE_SIZE (4 * 1024 * 1024)
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namespace Toon {
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class PakFile {
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public:
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PakFile();
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~PakFile();
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void open(Common::SeekableReadStream *rs, const Common::String &packName);
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uint8 *getFileData(const Common::String &fileName, uint32 *fileSize);
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Common::String getPackName() { return _packName; }
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Common::SeekableReadStream *createReadStream(const Common::String &fileName);
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void close();
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protected:
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struct File {
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char _name[13];
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int32 _offset;
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int32 _size;
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};
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Common::String _packName;
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uint32 _numFiles;
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Common::Array<File> _files;
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Common::File *_fileHandle;
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};
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class ToonEngine;
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class CacheEntry {
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public:
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CacheEntry() : _age(0), _size(0), _data(0) {}
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~CacheEntry() {
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free(_data);
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}
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Common::String _packName;
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Common::String _fileName;
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uint32 _age;
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uint32 _size;
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uint8 *_data;
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};
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class Resources {
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public:
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Resources(ToonEngine *vm);
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~Resources();
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void openPackage(const Common::String &file);
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void closePackage(const Common::String &fileName);
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Common::SeekableReadStream *openFile(const Common::String &file);
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uint8 *getFileData(const Common::String &fileName, uint32 *fileSize); // this memory must be copied to your own structures!
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void purgeFileData();
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protected:
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ToonEngine *_vm;
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Common::Array<uint8 *> _allocatedFileData;
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Common::Array<PakFile *> _pakFiles;
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uint32 _cacheSize;
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Common::Array<CacheEntry *> _resourceCache;
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void removePackageFromCache(const Common::String &packName);
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bool getFromCache(const Common::String &fileName, uint32 *fileSize, uint8 **fileData);
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void addToCache(const Common::String &packName, const Common::String &fileName, uint32 fileSize, uint8 *fileData);
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};
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} // End of namespace Toon
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#endif
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