// decrypt.h
//
#ifndef decrypt_h
#define decrypt_h
#include "common.h"
#include "list.h"
#include "savefile.h"
// decrypt types supported - add, sub, mul, xor
//enum dectype {decnull=0,decadd,decsub,decmul,decrot,decxor,decxadd};
typedef byte dectype;
enum dectype_e {decnull=0,decadd,decsub,decmul,decrot,decxor,decxadd};
// decrypt lengths - byte,word,dword,array
//enum ditemtype {decbyte=1,decword,decdword,decarray};
typedef byte ditemtype;
enum ditemtype_e {decbyte=1,decword,decdword,decarray};
// structure cannot be implemented internal to the class due to MSVC warning.
// struct declist;
// decrypters are held in an array - this array is saved when a database is saved
// and the list is reapplied on loading the file.
struct declist
{ lptr dec_start; // start address
lptr dec_end; // end address
dectype typ; // type of patch
ditemtype dlength; // size of patch value byte/word/dword/array
dword value; // patch value
lptr arrayaddr; // address of array if present
bool patch; // was the exe patched ?
dword uid; // unique id for ordering
};
class decrypt:public slist <declist *>
{ public:
dword nextitemnum;
bool loading_db;
public:
decrypt();
~decrypt();
dword add_decrypted(lptr dstart,lptr dend,dectype t,ditemtype ditem,dword val,lptr adr,bool patchedexe);
void process_dec(dword dec_id);
void process_reload(dword dec_id);
void exepatch(dword dec_id);
bool read_item(savefile *sf);
bool write_item(savefile *sf);
// virtual functions from slist
int compare(declist *i,declist *j);
};
extern decrypt decrypter;
#endif
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