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#ifndef __GENERAL__
#define __GENERAL__
#include "cge\jbw.h"
#include <io.h>
#define SEED 0xA5
#define SCR_WID_ 320
#define SCR_HIG_ 200
#define SCR_WID ((word)SCR_WID_)
#define SCR_HIG ((word)SCR_HIG_)
#define SCR_SEG 0xA000
#define SCR_ADR ((byte far *) 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 {
byte R, G, B;
} DAC;
typedef word CRYPT (void far * buf, word siz, word 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; }
Boolean operator == (COUPLE c) { return ((A - c.A) | (B - c.B)) == 0; }
Boolean operator != (COUPLE c) { return ! (operator == (c)); }
void Split (signed char& a, signed char& b) { a = A; b = B; }
};
//-------------------------------------------------------------------------
class ENGINE
{
protected:
static void interrupt (far * OldTimer) (...);
static void interrupt NewTimer (...);
public:
ENGINE (word tdiv);
~ENGINE (void);
};
//-------------------------------------------------------------------------
class EMS;
class EMM
{
friend EMS;
Boolean Test (void);
long Top, Lim;
EMS * List;
int Han;
static void _seg * Frame;
public:
EMM::EMM (long size = 0);
EMM::~EMM (void);
EMS * Alloc (word siz);
void Release (void);
};
class EMS
{
friend EMM;
EMM * Emm;
long Ptr;
word Siz;
EMS * Nxt;
public:
EMS (void);
void far * operator & () const;
word 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;
word Error;
XFILE (void) : Mode(REA), Error(0) { }
XFILE (IOMODE mode) : Mode(mode), Error(0) { }
virtual word Read (void far * buf, word len) = 0;
virtual word Write (void far * buf, word len) = 0;
virtual long Mark (void) = 0;
virtual long Size (void) = 0;
virtual long Seek (long pos) = 0;
};
template <class T>
inline word XRead (XFILE * xf, T * t)
{
return xf->Read((byte far *) t, sizeof(*t));
};
class IOHAND : public XFILE
{
protected:
int Handle;
word Seed;
CRYPT * Crypt;
public:
IOHAND (const char near * name, IOMODE mode = REA, CRYPT crypt = NULL);
IOHAND (IOMODE mode = REA, CRYPT * crpt = NULL);
virtual ~IOHAND (void);
static Boolean Exist (const char * name);
word Read (void far * buf, word len);
word Write (void far * buf, word len);
long Mark (void);
long Size (void);
long Seek (long pos);
ftime Time (void);
void SetTime (ftime t);
};
CRYPT XCrypt;
CRYPT RXCrypt;
CRYPT RCrypt;
MEM_TYPE MemType (void far * mem);
unsigned FastRand (void);
unsigned FastRand (unsigned s);
CPU Cpu (void);
ALLOC_MODE SetAllocMode (ALLOC_MODE am);
word atow (const char * a);
word xtow (const char * x);
char * wtom (word val, char * str, int radix, int len);
char * dwtom (dword val, char * str, int radix, int len);
char * DateTimeString (void);
void StdLog (const char *msg, const char *nam = NULL);
void StdLog (const char *msg, word w);
void StdLog (const char *msg, dword d);
int TakeEnum (const char ** tab, const char * txt);
word ChkSum (void far * m, word n);
long Timer (void);
long TimerLimit (word t);
Boolean TimerLimitGone (long t);
char * MergeExt (char * buf, const char * nam, const char * ext);
char * ForceExt (char * buf, const char * nam, const char * ext);
inline const char * ProgPath (void);
const char * ProgName (const char * ext = NULL);
int DriveFixed (unsigned drv);
int DriveRemote (unsigned drv);
int DriveCD (unsigned drv);
Boolean IsVga (void);
EC void _fqsort (void far *base, word nelem, word width,
int (*fcmp)(const void far *, const void far *));
#endif
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