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/* ScummVM - Graphic Adventure Engine
*
* ScummVM is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
* 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
*/
/*
* This code is based on original Soltys source code
* Copyright (c) 1994-1995 Janus B. Wisniewski and L.K. Avalon
*/
#ifndef __GENERAL__
#define __GENERAL__
#include "common/system.h"
#include "common/random.h"
#include "common/textconsole.h"
#include "common/str.h"
#include "cge/jbw.h"
#include "cge/boot.h"
namespace CGE {
#define SEED 0xA5
#define SCR_WID_ 320
#define SCR_HIG_ 200
#define SCR_WID ((uint16)SCR_WID_)
#define SCR_HIG ((uint16)SCR_HIG_)
#define SCR_SEG 0xA000
#define SCR_ADR ((uint8 *) MK_FP(SCR_SEG, 0))
//enum CPU { _8086, _80186, _80286, _80386, _80486 };
enum MEM_TYPE { BAD_MEM, EMS_MEM, NEAR_MEM, FAR_MEM };
enum ALLOC_MODE { FIRST_FIT, BEST_FIT, LAST_FIT };
enum IOMODE { REA, WRI, UPD };
typedef struct {
uint8 R, G, B;
} DAC;
typedef uint16 CRYPT(void *buf, uint16 siz, uint16 seed);
class COUPLE {
protected:
signed char A;
signed char B;
public:
COUPLE(void) { }
COUPLE(const signed char a, const signed char b) : A(a), B(b) { }
COUPLE operator + (COUPLE c) {
return COUPLE(A + c.A, B + c.B);
}
void operator += (COUPLE c) {
A += c.A;
B += c.B;
}
COUPLE operator - (COUPLE c) {
return COUPLE(A - c.A, B - c.B);
}
void operator -= (COUPLE c) {
A -= c.A;
B -= c.B;
}
bool operator == (COUPLE c) {
return ((A - c.A) | (B - c.B)) == 0;
}
bool operator != (COUPLE c) {
return !(operator == (c));
}
void Split(signed char &a, signed char &b) {
a = A;
b = B;
}
};
class ENGINE {
protected:
static void (* OldTimer)(...);
static void NewTimer(...);
public:
ENGINE(uint16 tdiv);
~ENGINE(void);
};
class EMS;
class EMM {
friend class EMS;
bool Test(void);
long Top, Lim;
EMS *List;
int Han;
static void *Frame;
public:
EMM(long size = 0);
~EMM(void);
EMS *Alloc(uint16 siz);
void Release(void);
};
class EMS {
friend class EMM;
EMM *Emm;
long Ptr;
uint16 Siz;
EMS *Nxt;
public:
EMS(void);
void *operator & () const;
uint16 Size(void);
};
template <class T>
void Swap(T &A, T &B) {
T a = A;
A = B;
B = a;
}
#ifdef __cplusplus
template <class T>
T max(T A, T B) {
return (A > B) ? A : B;
}
template <class T>
T min(T A, T B) {
return (A < B) ? A : B;
}
#endif
class XFILE {
public:
IOMODE Mode;
uint16 Error;
XFILE(void) : Mode(REA), Error(0) { }
XFILE(IOMODE mode) : Mode(mode), Error(0) { }
virtual uint16 Read(void *buf, uint16 len) = 0;
virtual uint16 Write(void *buf, uint16 len) = 0;
virtual long Mark(void) = 0;
virtual long Size(void) = 0;
virtual long Seek(long pos) = 0;
};
template <class T>
inline uint16 XRead(XFILE *xf, T *t) {
return xf->Read((uint8 *) t, sizeof(*t));
}
class IOHAND : public XFILE {
protected:
int Handle;
uint16 Seed;
CRYPT *Crypt;
public:
IOHAND(const char *name, IOMODE mode = REA, CRYPT crypt = NULL);
IOHAND(IOMODE mode = REA, CRYPT *crpt = NULL);
virtual ~IOHAND(void);
static bool Exist(const char *name);
uint16 Read(void *buf, uint16 len);
uint16 Write(void *buf, uint16 len);
long Mark(void);
long Size(void);
long Seek(long pos);
//timeb Time (void);
// void SetTime (timeb t);
};
CRYPT XCrypt;
CRYPT RCrypt;
MEM_TYPE MemType(void *mem);
uint16 atow(const char *a);
uint16 xtow(const char *x);
char *wtom(uint16 val, char *str, int radix, int len);
char *dwtom(uint32 val, char *str, int radix, int len);
int TakeEnum(const char **tab, const char *txt);
uint16 ChkSum(void *m, uint16 n);
long Timer(void);
char *MergeExt(char *buf, const char *nam, const char *ext);
char *ForceExt(char *buf, const char *nam, const char *ext);
int DriveCD(unsigned drv);
bool IsVga(void);
// MISSING FUNCTIONS
EC void _fqsort(void *base, uint16 nelem, uint16 width, int (*fcmp)(const void *, const void *));
const char *ProgName(const char *ext = NULL);
char *MergeExt(char *buf, const char *nam, const char *ext);
char *ForceExt(char *buf, const char *nam, const char *ext);
unsigned FastRand(void);
unsigned FastRand(unsigned s);
uint16 RCrypt(void *buf, uint16 siz, uint16 seed);
uint16 atow(const char *a);
uint16 xtow(const char *x);
char *wtom(uint16 val, char *str, int radix, int len);
char *dwtom(uint32 val, char * str, int radix, int len);
int TakeEnum(const char **tab, const char *txt);
Boot *ReadBoot(int drive);
long Timer(void);
int new_random(int range);
} // End of namespace CGE
#endif
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