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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_VGA13H__
#define __CGE_VGA13H__
#include "common/serializer.h"
#include "graphics/surface.h"
#include "cge/general.h"
#include "cge/bitmap.h"
#include "cge/snail.h"
#include "cge/cge.h"
namespace CGE {
#define TMR_RATE1 16
#define TMR_RATE2 4
#define TMR_RATE (TMR_RATE1 * TMR_RATE2)
#define MAX_NAME 20
#define VIDEO 0x10
#define NO_CLEAR 0x80
#define TEXT_MODE 0x03
#define M13H 0x13
#ifndef SCR_WID
#define SCR_WID 320
#endif
#ifndef SCR_HIG
#define SCR_HIG 200
#endif
#if 0
#define LIGHT 0xFF
#define DARK 0x00
#define DGRAY 0xF6
#define GRAY 0xFC
#define LGRAY 0xFF
#else
#define LIGHT 0xFF
#define DARK 207
#define DGRAY 225 /*219*/
#define GRAY 231
#define LGRAY 237
#endif
#define NO_SEQ (-1)
#define NO_PTR ((uint8)-1)
#define SPR_EXT ".SPR"
#define IsFile(s) (access(s, 0) == 0)
#define IsWrit(s) (access(s, 2) == 0)
struct Rgb {
uint16 _r : 2;
uint16 _R : 6;
uint16 _g : 2;
uint16 _G : 6;
uint16 _b : 2;
uint16 _B : 6;
};
typedef union {
Dac _dac;
Rgb _rgb;
} Trgb;
struct VgaRegBlk {
uint8 _idx;
uint8 _adr;
uint8 _clr;
uint8 _set;
};
struct Seq {
uint8 _now;
uint8 _next;
int8 _dx;
int8 _dy;
int _dly;
};
extern Seq _seq1[];
extern Seq _seq2[];
//extern SEQ * Compass[];
//extern SEQ TurnToS[];
#define PAL_CNT 256
#define PAL_SIZ (PAL_CNT * 3)
#define VGAATR_ 0x3C0
#define VGAMIw_ 0x3C0
#define VGASEQ_ 0x3C4
#define VGAMIr_ 0x3CC
#define VGAGRA_ 0x3CE
#define VGACRT_ 0x3D4
#define VGAST1_ 0x3DA
#define VGAATR (VGAATR_ & 0xFF)
#define VGAMIw (VGAMIw_ & 0xFF)
#define VGASEQ (VGASEQ_ & 0xFF)
#define VGAMIr (VGAMIr_ & 0xFF)
#define VGAGRA (VGAGRA_ & 0xFF)
#define VGACRT (VGACRT_ & 0xFF)
#define VGAST1 (VGAST1_ & 0xFF)
class Heart : public Engine_ {
friend class Engine_;
public:
Heart();
bool _enable;
uint16 *_xTimer;
void setXTimer(uint16 *ptr);
void setXTimer(uint16 *ptr, uint16 time);
};
class SprExt {
public:
int _x0, _y0;
int _x1, _y1;
BMP_PTR _b0, _b1;
BMP_PTR *_shpList;
Seq *_seq;
char *_name;
Snail::Com *_near, *_take;
SprExt() :
_x0(0), _y0(0),
_x1(0), _y1(0),
_b0(NULL), _b1(NULL),
_shpList(NULL), _seq(NULL),
_name(NULL), _near(NULL), _take(NULL)
{}
};
class Sprite {
protected:
SprExt *_ext;
public:
int _ref;
signed char _cave;
struct Flags {
uint16 _hide : 1; // general visibility switch
uint16 _near : 1; // Near action lock
uint16 _drag : 1; // sprite is moveable
uint16 _hold : 1; // sprite is held with mouse
uint16 _____ : 1; // intrrupt driven animation
uint16 _slav : 1; // slave object
uint16 _syst : 1; // system object
uint16 _kill : 1; // dispose memory after remove
uint16 _xlat : 1; // 2nd way display: xlat table
uint16 _port : 1; // portable
uint16 _kept : 1; // kept in pocket
uint16 _east : 1; // talk to east (in opposite to west)
uint16 _shad : 1; // shadow
uint16 _back : 1; // 'send to background' request
uint16 _bDel : 1; // delete bitmaps in ~SPRITE
uint16 _tran : 1; // transparent (untouchable)
} _flags;
int _x;
int _y;
signed char _z;
uint16 _w;
uint16 _h;
uint16 _time;
uint8 _nearPtr;
uint8 _takePtr;
int _seqPtr;
int _shpCnt;
char _file[MAXFILE];
Sprite *_prev;
Sprite *_next;
bool works(Sprite *spr);
bool seqTest(int n);
inline bool active() {
return _ext != NULL;
}
Sprite(CGEEngine *vm, BMP_PTR *shp);
virtual ~Sprite(void);
BMP_PTR shp();
BMP_PTR *setShapeList(BMP_PTR *shp);
void moveShapes(uint8 *buf);
Sprite *expand();
Sprite *contract();
Sprite *backShow(bool fast = false);
void setName(char *n);
inline char *name() {
return (_ext) ? _ext->_name : NULL;
}
void gotoxy(int x, int y);
void center();
void show();
void hide();
BMP_PTR ghost();
void show(uint16 pg);
void makeXlat(uint8 *x);
void killXlat();
void step(int nr = -1);
Seq *setSeq(Seq *seq);
Snail::Com *snList(SNLIST type);
virtual void touch(uint16 mask, int x, int y);
virtual void tick();
void sync(Common::Serializer &s);
private:
CGEEngine *_vm;
};
class Queue {
Sprite *_head;
Sprite *_tail;
public:
Queue(bool show);
~Queue();
bool _show;
void append(Sprite *spr);
void insert(Sprite *spr, Sprite *nxt);
void insert(Sprite *spr);
Sprite *remove(Sprite *spr);
void forAll(void (*fun)(Sprite *));
Sprite *first() {
return _head;
}
Sprite *last() {
return _tail;
}
Sprite *locate(int ref);
void clear();
};
class Vga {
uint16 _oldMode;
uint16 *_oldScreen;
uint16 _statAdr;
bool _setPal;
Dac *_oldColors;
Dac *_newColors;
const char *_msg;
const char *_nam;
int setMode(int mode);
void updateColors();
void setColors();
void setStatAdr();
void waitVR(bool on);
public:
uint32 _frmCnt;
Queue *_showQ;
Queue *_spareQ;
int _mono;
static Graphics::Surface *_page[4];
static Dac *_sysPal;
Vga(int mode);
~Vga(void);
static void init();
static void deinit();
void setup(VgaRegBlk *vrb);
void getColors(Dac *tab);
void setColors(Dac *tab, int lum);
void clear(uint8 color);
void copyPage(uint16 d, uint16 s);
void sunrise(Dac *tab);
void sunset();
void show();
void update();
static void palToDac(const byte *palData, Dac *tab);
static void dacToPal(const Dac *tab, byte *palData);
};
Dac mkDac(uint8 r, uint8 g, uint8 b);
Rgb mkRgb(uint8 r, uint8 g, uint8 b);
template <class CBLK>
uint8 closest(CBLK *pal, CBLK x) {
#define f(col, lum) ((((uint16)(col)) << 8) / lum)
uint16 i, dif = 0xFFFF, found = 0;
uint16 L = x._r + x._g + x._b;
if (!L)
++L;
uint16 R = f(x._r, L), G = f(x._g, L), B = f(x._b, L);
for (i = 0; i < 256; i++) {
uint16 l = pal[i]._r + pal[i]._g + pal[i]._b;
if (! l)
++l;
int r = f(pal[i]._r, l), g = f(pal[i]._g, l), b = f(pal[i]._b, l);
uint16 D = ((r > R) ? (r - R) : (R - r)) +
((g > G) ? (g - G) : (G - g)) +
((b > B) ? (b - B) : (B - b)) +
((l > L) ? (l - L) : (L - l)) * 10 ;
if (D < dif) {
found = i;
dif = D;
if (D == 0)
break; // exact!
}
}
return found;
#undef f
}
//static void Video (void);
uint16 *saveScreen();
void restoreScreen(uint16 * &sav);
Sprite *spriteAt(int x, int y);
Sprite *locate(int ref);
extern bool _speedTest;
} // End of namespace CGE
#endif
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