mirror of https://github.com/bsnes-emu/bsnes.git
89 lines
2.3 KiB
C
89 lines
2.3 KiB
C
|
/*
|
||
|
|
Copyright (C) 2005-2007 NSRT Team ( http://nsrt.edgeemu.com )
|
||
|
|
|
||
|
|
This program is free software; you can redistribute it and/or
|
||
|
|
modify it under the terms of the GNU General Public License
|
||
|
|
version 2 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
|
||
|
|
along with this program; if not, write to the Free Software
|
||
|
|
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#ifndef JMA_H
|
||
|
|
#define JMA_H
|
||
|
|
|
||
|
|
#include <string>
|
||
|
|
#include <fstream>
|
||
|
|
#include <vector>
|
||
|
|
#include <time.h>
|
||
|
|
|
||
|
|
namespace JMA
|
||
|
|
{
|
||
|
|
enum jma_errors { JMA_NO_CREATE, JMA_NO_MEM_ALLOC, JMA_NO_OPEN, JMA_BAD_FILE,
|
||
|
|
JMA_UNSUPPORTED_VERSION, JMA_COMPRESS_FAILED, JMA_DECOMPRESS_FAILED,
|
||
|
|
JMA_FILE_NOT_FOUND };
|
||
|
|
|
||
|
|
struct jma_file_info_base
|
||
|
|
{
|
||
|
|
std::string name;
|
||
|
|
std::string comment;
|
||
|
|
size_t size;
|
||
|
|
unsigned int crc32;
|
||
|
|
};
|
||
|
|
|
||
|
|
struct jma_public_file_info : jma_file_info_base
|
||
|
|
{
|
||
|
|
time_t datetime;
|
||
|
|
};
|
||
|
|
|
||
|
|
struct jma_file_info : jma_file_info_base
|
||
|
|
{
|
||
|
|
unsigned short date;
|
||
|
|
unsigned short time;
|
||
|
|
const unsigned char *buffer;
|
||
|
|
};
|
||
|
|
|
||
|
|
template<class jma_file_type>
|
||
|
|
inline size_t get_total_size(std::vector<jma_file_type>& files)
|
||
|
|
{
|
||
|
|
size_t size = 0;
|
||
|
|
for (typename std::vector<jma_file_type>::iterator i = files.begin(); i != files.end(); i++)
|
||
|
|
{
|
||
|
|
size += i->size; //We do have a problem if this wraps around
|
||
|
|
}
|
||
|
|
|
||
|
|
return(size);
|
||
|
|
}
|
||
|
|
|
||
|
|
class jma_open
|
||
|
|
{
|
||
|
|
public:
|
||
|
|
jma_open(const char *) throw(jma_errors);
|
||
|
|
~jma_open();
|
||
|
|
|
||
|
|
std::vector<jma_public_file_info> get_files_info();
|
||
|
|
std::vector<unsigned char *> get_all_files(unsigned char *) throw(jma_errors);
|
||
|
|
void extract_file(std::string& name, unsigned char *) throw(jma_errors);
|
||
|
|
bool is_solid();
|
||
|
|
|
||
|
|
private:
|
||
|
|
std::ifstream stream;
|
||
|
|
std::vector<jma_file_info> files;
|
||
|
|
size_t chunk_size;
|
||
|
|
unsigned char *decompressed_buffer;
|
||
|
|
unsigned char *compressed_buffer;
|
||
|
|
|
||
|
|
void chunk_seek(unsigned int) throw(jma_errors);
|
||
|
|
void retrieve_file_block() throw(jma_errors);
|
||
|
|
};
|
||
|
|
|
||
|
|
const char *jma_error_text(jma_errors);
|
||
|
|
}
|
||
|
|
#endif
|