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vcmi/hch/CLodHandler.h
Ivan Savenko 9771dd12ff - changes in LodHandler:
-- file type (text, image...) can be specified in getFile(), all hacks removed
-- replaced Nodrze with std::set
-  some gcc warnings fixed
2010-11-09 11:27:58 +00:00

112 lines
3.1 KiB
C++

#ifndef __CLODHANDLER_H__
#define __CLODHANDLER_H__
#include "../global.h"
#include <vector>
#include <string>
#include <fstream>
#include <set>
#include <map>
/*
* 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
*
*/
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);
enum LodFileType{
FILE_ANY,
FILE_TEXT,
FILE_ANIMATION,
FILE_MASK,
FILE_CAMPAIGN,
FILE_MAP,
FILE_FONT,
FILE_GRAPHICS,
FILE_OTHER
};
struct Entry
{
// Info extracted from LOD file
std::string name,
realName;//for external files - case\extension may not match
int offset, //from beginning
realSize, //size without compression
size; //and with
LodFileType type;// file type determined by extension
bool operator<(const Entry & comp) const
{
return type==comp.type ? name<comp.name
: type<comp.type;
}
bool operator == (const Entry & comp) const
{
return (type==comp.type || comp.type== FILE_ANY) && name==comp.name;
}
Entry(std::string con, LodFileType TYPE): name(con), type(TYPE){};
Entry(std::string con): name(con){};
Entry(){};
};
class DLL_EXPORT CLodHandler
{
std::map<std::string, LodFileType> extMap;// to convert extensions to file type
std::ifstream LOD;
unsigned int totalFiles;
boost::mutex *mutex;
std::string myDir; //load files from this dir instead of .lod file
void initEntry(Entry &e, const std::string name);
Entry getEntry(const std::string name, LodFileType);
int infs2(unsigned char * in, int size, int realSize, unsigned char*& out, int wBits=15); //zlib fast handler
public:
std::set<Entry> entries;
CLodHandler();
~CLodHandler();
void init(const std::string lodFile, const std::string dirName);
unsigned char * giveFile(const std::string defName, LodFileType type=FILE_ANY, int * length=NULL); //returns pointer to the decompressed data - it must be deleted when no longer needed!
bool haveFile(const std::string name, LodFileType type=FILE_ANY);//check if file is present in lod
std::string getTextFile(const std::string name, LodFileType type=FILE_TEXT); //extracts one file
void extractFile(const std::string FName, const std::string name); //extracts a specific file
static unsigned char * getUnpackedFile(const std::string & path, int * sizeOut); //loads given file, decompresses and returns
};
#endif // __CLODHANDLER_H__