forked from mirror/openmw-tes3mp
You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
138 lines
3.4 KiB
C++
138 lines
3.4 KiB
C++
/*
|
|
OpenMW - The completely unofficial reimplementation of Morrowind
|
|
Copyright (C) 2008-2010 Nicolay Korslund
|
|
Email: < korslund@gmail.com >
|
|
WWW: http://openmw.sourceforge.net/
|
|
|
|
This file (bsa_file.h) is part of the OpenMW package.
|
|
|
|
OpenMW is distributed as free software: you can redistribute it
|
|
and/or modify it under the terms of the GNU General Public License
|
|
version 3, as published by the Free Software Foundation.
|
|
|
|
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
|
|
version 3 along with this program. If not, see
|
|
http://www.gnu.org/licenses/ .
|
|
|
|
*/
|
|
|
|
#ifndef BSA_BSA_FILE_H
|
|
#define BSA_BSA_FILE_H
|
|
|
|
#include <stdint.h>
|
|
#include <string>
|
|
#include <vector>
|
|
#include <map>
|
|
|
|
#include <components/misc/stringops.hpp>
|
|
|
|
#include <components/files/constrainedfilestream.hpp>
|
|
|
|
|
|
namespace Bsa
|
|
{
|
|
|
|
/**
|
|
This class is used to read "Bethesda Archive Files", or BSAs.
|
|
*/
|
|
class BSAFile
|
|
{
|
|
public:
|
|
/// Represents one file entry in the archive
|
|
struct FileStruct
|
|
{
|
|
// File size and offset in file. We store the offset from the
|
|
// beginning of the file, not the offset into the data buffer
|
|
// (which is what is stored in the archive.)
|
|
uint32_t fileSize, offset;
|
|
|
|
// Zero-terminated file name
|
|
const char *name;
|
|
};
|
|
typedef std::vector<FileStruct> FileList;
|
|
|
|
private:
|
|
/// Table of files in this archive
|
|
FileList files;
|
|
|
|
/// Filename string buffer
|
|
std::vector<char> stringBuf;
|
|
|
|
/// True when an archive has been loaded
|
|
bool isLoaded;
|
|
|
|
/// Used for error messages
|
|
std::string filename;
|
|
|
|
/// Case insensitive string comparison
|
|
struct iltstr
|
|
{
|
|
bool operator()(const char *s1, const char *s2) const
|
|
{ return Misc::StringUtils::ciLess(s1, s2); }
|
|
};
|
|
|
|
/** A map used for fast file name lookup. The value is the index into
|
|
the files[] vector above. The iltstr ensures that file name
|
|
checks are case insensitive.
|
|
*/
|
|
typedef std::map<const char*, int, iltstr> Lookup;
|
|
Lookup lookup;
|
|
|
|
/// Error handling
|
|
void fail(const std::string &msg);
|
|
|
|
/// Read header information from the input source
|
|
void readHeader();
|
|
|
|
/// Get the index of a given file name, or -1 if not found
|
|
/// @note Thread safe.
|
|
int getIndex(const char *str) const;
|
|
|
|
public:
|
|
/* -----------------------------------
|
|
* BSA management methods
|
|
* -----------------------------------
|
|
*/
|
|
|
|
BSAFile()
|
|
: isLoaded(false)
|
|
{ }
|
|
|
|
/// Open an archive file.
|
|
void open(const std::string &file);
|
|
|
|
/* -----------------------------------
|
|
* Archive file routines
|
|
* -----------------------------------
|
|
*/
|
|
|
|
/// Check if a file exists
|
|
bool exists(const char *file) const
|
|
{ return getIndex(file) != -1; }
|
|
|
|
/** Open a file contained in the archive. Throws an exception if the
|
|
file doesn't exist.
|
|
* @note Thread safe.
|
|
*/
|
|
Files::IStreamPtr getFile(const char *file);
|
|
|
|
/** Open a file contained in the archive.
|
|
* @note Thread safe.
|
|
*/
|
|
Files::IStreamPtr getFile(const FileStruct* file);
|
|
|
|
/// Get a list of all files
|
|
/// @note Thread safe.
|
|
const FileList &getList() const
|
|
{ return files; }
|
|
};
|
|
|
|
}
|
|
|
|
#endif
|