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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 __CGE_GENERAL__
#define __CGE_GENERAL__
#include "common/system.h"
#include "common/file.h"
#include "common/random.h"
#include "common/textconsole.h"
#include "common/str.h"
#include "cge/jbw.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 };
struct Dac {
uint8 _r, _g, _b;
};
typedef uint16 CRYPT(void *buf, uint16 siz, uint16 seed);
class Couple {
protected:
signed char _a;
signed char _b;
public:
Couple() { }
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();
long _top;
long _lim;
Ems *_list;
int _han;
static void *_frame;
public:
Emm(long size = 0);
~Emm();
Ems *alloc(uint16 siz);
void release();
};
class Ems {
friend class Emm;
Emm *_emm;
long _ptr;
uint16 _size;
Ems *_next;
public:
Ems();
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() : _mode(REA), _error(0) { }
XFile(IOMODE mode) : _mode(mode), _error(0) { }
virtual ~XFile() { }
virtual uint16 read(void *buf, uint16 len) = 0;
virtual uint16 write(void *buf, uint16 len) = 0;
virtual long mark() = 0;
virtual long size() = 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:
Common::File *_file;
uint16 _seed;
CRYPT *_crypt;
public:
IoHand(const char *name, IOMODE mode = REA, CRYPT crypt = NULL);
IoHand(IOMODE mode = REA, CRYPT *crpt = NULL);
virtual ~IoHand();
static bool exist(const char *name);
uint16 read(void *buf, uint16 len);
uint16 write(void *buf, uint16 len);
long mark();
long size();
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();
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();
// MISSING FUNCTIONS
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);
long timer(void);
int new_random(int range);
} // End of namespace CGE
#endif
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