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backup.h
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backup.h
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#pragma once
#include <jo/jo.h>
#include <STRING.H>
#include "util.h"
#include "bup_header.h"
#define MAX_SAVE_SIZE (256 * 1024) // according to Cafe-Alpha this is the maximum size supported by the BIOS
#define MAX_SAVE_FILENAME 12
#define MAX_SAVE_COMMENT 11
#define MAX_FILENAME 32
#define MAX_SAVES 255
// all devices should standardize on this directory
// for storing saves
#define SAVES_DIRECTORY "SATSAVES"
#define SatiatorBackup (JoExternalDeviceBackup + 1)
#define CdMemoryBackup (SatiatorBackup + 1)
#define MemoryBackup (CdMemoryBackup + 1)
#define MODEBackup (MemoryBackup + 1)
// meta data related to save files
typedef struct _SAVES {
char filename[MAX_FILENAME]; // filename on the medium. Will have .BUP extension on CD FS and ODEs.
char name[MAX_SAVE_FILENAME]; // selected save name
char comment[MAX_SAVE_COMMENT]; // selected save comment
unsigned char language;
unsigned int date;
unsigned int datasize;
unsigned short blocksize;
} SAVES, *PSAVES;
typedef int (*BACKUP_LIST_FN)(int backupDevice, PSAVES saves, unsigned int numSaves);
typedef int (*BACKUP_READ_FN)(int backupDevice, char* filename, unsigned char* outBuffer, unsigned int outSize);
typedef int (*BACKUP_WRITE_FN)(int backupDevice, char* filename, unsigned char* inBuffer, unsigned int inSize);
typedef int (*BACKUP_DELETE_FN)(int backupDevice, char* filename);
typedef int (*BACKUP_FORMAT_FN)(int backupDevice);
typedef struct _BACKUP_MEDIUM
{
int backupDevice;
char* deviceName;
BACKUP_LIST_FN listSaveFiles;
BACKUP_READ_FN readSaveFile;
BACKUP_WRITE_FN writeSaveFile;
BACKUP_DELETE_FN deleteSaveFile;
BACKUP_FORMAT_FN formatDevice;
} BACKUP_MEDIUM, *PBACKUP_MEDIUM;
// access the save data
bool isBackupDeviceAvailable(int backupDevice);
int listSaveFiles(int backupDevice, PSAVES saves, unsigned int numSaves);
int readSaveFile(int backupDevice, char* filename, unsigned char* outBuffer, unsigned int outSize);
int writeSaveFile(int backupDevice, char* filename, unsigned char* inBuffer, unsigned int inSize);
int deleteSaveFile(int backupDevice, char* filename);
int formatDevice(int backupDevice);
// helper functions
int getBackupDeviceName(unsigned int backupDevice, char** deviceName);
bool isFileBUPExt(char* filename);
int parseBupHeaderValues(PBUP_HEADER bupHeader, unsigned int totalBupSize, char* saveName, char* saveComment, unsigned char* saveLanguage, unsigned int* saveDate, unsigned int* saveSize, unsigned short* saveBlocks);
// prototypes to keep compiler happy
int snprintf(char *str, size_t size, const char *format, ...);