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vcmi/hch/CLodHandler.h
2010-07-16 14:22:18 +00:00

89 lines
2.3 KiB
C++

#ifndef __CLODHANDLER_H__
#define __CLODHANDLER_H__
#include "../global.h"
#include <vector>
#include <string>
#include "../nodrze.h"
/*
* CLodhandler.h, part of VCMI engine
*
* Authors: listed in file AUTHORS in main folder
*
* License: GNU General Public License v2.0 or later
* Full text of license available in license.txt file, in main folder
*
*/
struct SDL_Surface;
class CDefHandler;
class CDefEssential;
namespace boost
{class mutex;}
namespace NLoadHandlerHelp
{
const int dmHelp=0, dmNoExtractingMask=1;
//std::string P1,P2,CurDir;
const int fCHUNK = 50000;
}
struct LodEntry {
char filename[16];
ui32 offset; /* little endian */
ui32 uncompressedSize; /* little endian */
ui32 unused; /* little endian */
ui32 size; /* little endian */
};
DLL_EXPORT int readNormalNr (const unsigned char * bufor, int pos, int bytCon = 4, bool cyclic = false);
DLL_EXPORT char readChar(const unsigned char * bufor, int &i);
DLL_EXPORT std::string readString(const unsigned char * bufor, int &i);
struct Entry
{
// Info extracted from LOD file
std::string nameStr,
realName;
int offset, //from beginning
realSize, //size without compression
size; //and with
bool operator<(const std::string & comp) const
{
return nameStr<comp;
}
bool operator<(const Entry & comp) const
{
return nameStr<comp.nameStr;
}
Entry(std::string con): nameStr(con){};
//Entry(unsigned char ): nameStr(con){};
Entry(){};
};
class DLL_EXPORT CLodHandler
{
std::ifstream LOD;
unsigned int totalFiles;
boost::mutex *mutex;
std::string myDir; //load files from this dir instead of .lod file
public:
nodrze<Entry> entries;
CLodHandler();
~CLodHandler();
int infs2(unsigned char * in, int size, int realSize, unsigned char*& out, int wBits=15); //zlib fast handler
unsigned char * giveFile(std::string defName, int * length=NULL); //returns pointer to the decompressed data - it must be deleted when no longer needed!
std::string getTextFile(std::string name); //extracts one file
void extractFile(std::string FName, std::string name); //extracts a specific file
void init(std::string lodFile, std::string dirName);
static unsigned char * getUnpackedFile(const std::string & path, int * sizeOut); //loads given file, decompresses and returns
};
#endif // __CLODHANDLER_H__