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/* ScummVM - Graphic Adventure Engine
*
* ScummVM is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
*/
#ifndef GOB_DATAIO_H
#define GOB_DATAIO_H
#include "common/endian.h"
#include "common/str.h"
#include "common/hashmap.h"
#include "common/array.h"
#include "common/file.h"
namespace Common {
class SeekableReadStream;
}
namespace Gob {
struct ArchiveInfo {
Common::String name;
bool base;
uint32 fileCount;
};
class DataIO {
public:
DataIO();
~DataIO();
void getArchiveInfo(Common::Array<ArchiveInfo> &info) const;
bool openArchive(Common::String name, bool base);
bool closeArchive(bool base);
bool hasFile(const Common::String &name);
int32 fileSize(const Common::String &name);
Common::SeekableReadStream *getFile(const Common::String &name);
byte *getFile(const Common::String &name, int32 &size);
static byte *unpack(const byte *src, uint32 srcSize, int32 &size, uint8 compression = 1);
static Common::SeekableReadStream *unpack(Common::SeekableReadStream &src, uint8 compression = 1);
private:
static const int kMaxArchives = 8;
struct Archive;
struct File {
Common::String name;
uint32 size;
uint32 offset;
uint8 compression;
Archive *archive;
File();
File(const Common::String &n, uint32 s, uint32 o, uint8 c, Archive &a);
};
typedef Common::HashMap<Common::String, File, Common::IgnoreCase_Hash, Common::IgnoreCase_EqualTo> FileMap;
struct Archive {
Common::String name;
Common::File file;
FileMap files;
bool base;
};
Common::Array<Archive *> _archives;
Archive *openArchive(const Common::String &name);
bool closeArchive(Archive &archive);
File *findFile(const Common::String &name);
Common::SeekableReadStream *getFile(File &file);
byte *getFile(File &file, int32 &size);
static byte *unpack(Common::SeekableReadStream &src, int32 &size, uint8 compression, bool useMalloc);
static uint32 getSizeChunks(Common::SeekableReadStream &src);
static void unpackChunks(Common::SeekableReadStream &src, byte *dest, uint32 size);
static void unpackChunk (Common::SeekableReadStream &src, byte *dest, uint32 size);
};
} // End of namespace Gob
#endif // GOB_DATAIO_H
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