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//-------------------------------------------------------------------------
/*
Copyright (C) 2010 EDuke32 developers and contributors

This file is part of EDuke32.

EDuke32 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., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
*/

//-------------------------------------------------------------------------

#ifndef __savegame_h__
#define __savegame_h__

#define SV_MAJOR_VER 1
#define SV_MINOR_VER 2

#pragma pack(push,1)
typedef struct
{
    char headerstr[11];
    uint8_t majorver, minorver, ptrsize;
    uint16_t bytever;
    // 16 bytes

    uint8_t comprthres;
    uint8_t recdiffsp, diffcompress, synccompress;
    // 4 bytes

    int32_t reccnt, snapsiz;
    // 8 bytes

    char savename[22];  // should be of the same length as ud.savegame[i]
    uint8_t numplayers, volnum, levnum, skill;
    char boardfn[256];  // BMAX_PATH
    // 282 bytes
} savehead_t;  // 310 bytes
#pragma pack(pop)

int32_t sv_updatestate(int32_t frominit);
int32_t sv_readdiff(int32_t fil);
uint32_t sv_writediff(FILE *fil);
int32_t sv_loadheader(int32_t fil, int32_t spot, savehead_t *h);
int32_t sv_loadsnapshot(int32_t fil, int32_t spot, savehead_t *h);
int32_t sv_saveandmakesnapshot(FILE *fil, int8_t spot, int8_t recdiffsp, int8_t diffcompress, int8_t synccompress);
void sv_freemem();
int32_t G_SavePlayer(int32_t spot);
int32_t G_LoadPlayer(int32_t spot);
int32_t G_LoadSaveHeaderNew(int32_t spot, savehead_t *saveh);
//int32_t G_LoadSaveHeader(char spot,struct savehead_ *saveh);
void ReadSaveGameHeaders(void);

#ifdef YAX_ENABLE
extern void sv_postyaxload(void);
#endif

extern char *bitptr;

enum
{
    P2I_BACK_BIT = 1,
    P2I_ONLYNON0_BIT = 2,

    P2I_FWD = 0,
    P2I_BACK = 1,

    P2I_FWD_NON0 = 0+2,
    P2I_BACK_NON0 = 1+2,
};
void G_Util_PtrToIdx(void *ptr, uint32_t len, const void *base, int32_t mode);

#endif