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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 __VGA13H__
#define __VGA13H__
#include "cge/general.h"
#include <stddef.h>
#include "cge/bitmap.h"
#include "cge/snail.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)
typedef struct {
uint16 r : 2;
uint16 R : 6;
uint16 g : 2;
uint16 G : 6;
uint16 b : 2;
uint16 B : 6;
} RGB;
typedef union {
DAC dac;
RGB rgb;
} TRGB;
typedef struct {
uint8 idx, adr;
uint8 clr, set;
} VgaRegBlk;
typedef struct {
uint8 Now, Next;
signed char Dx, Dy;
int Dly;
} SEQ;
extern SEQ Seq1[];
extern SEQ Seq2[];
//extern SEQ * Compass[];
//extern SEQ TurnToS[];
#define PAL_CNT 256
#define PAL_SIZ (PAL_CNT * sizeof(DAC))
#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:
static bool Enable;
static uint16 *XTimer;
static void SetXTimer(uint16 *ptr);
static void SetXTimer(uint16 *ptr, uint16 time);
HEART(void);
};
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(void) :
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, Y;
signed char Z;
uint16 W, H;
uint16 Time;
uint8 NearPtr, TakePtr;
int SeqPtr;
int ShpCnt;
char File[MAXFILE];
SPRITE *Prev, * Next;
bool Works(SPRITE *spr);
bool SeqTest(int n);
inline bool Active(void) {
return Ext != NULL;
}
SPRITE(BMP_PTR *shp);
virtual ~SPRITE(void);
BMP_PTR Shp(void);
BMP_PTR *SetShapeList(BMP_PTR *shp);
void MoveShapes(uint8 *buf);
SPRITE *Expand(void);
SPRITE *Contract(void);
SPRITE *BackShow(bool fast = false);
void SetName(char *n);
inline char *Name(void) {
return (Ext) ? Ext->Name : NULL;
}
void Goto(int x, int y);
void Center(void);
void Show(void);
void Hide(void);
BMP_PTR Ghost(void);
void Show(uint16 pg);
void MakeXlat(uint8 *x);
void KillXlat(void);
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);
};
class QUEUE {
SPRITE *Head, * Tail;
public:
bool Show;
QUEUE(bool show = false);
~QUEUE(void);
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(void) {
return Head;
}
SPRITE *Last(void) {
return Tail;
}
SPRITE *Locate(int ref);
void Clear(void);
};
class VGA {
static uint16 OldMode;
static uint16 *OldScreen;
static uint16 StatAdr;
static bool SetPal;
static DAC *OldColors, * NewColors;
static int SetMode(int mode);
static void UpdateColors(void);
static void SetColors(void);
static const char *Msg;
static const char *Nam;
static void SetStatAdr(void);
static void WaitVR(bool on = true);
public:
uint32 FrmCnt;
static QUEUE ShowQ, SpareQ;
static int Mono;
static uint8 *Page[4];
VGA(int mode = M13H);
~VGA(void);
void Setup(VgaRegBlk *vrb);
static void GetColors(DAC *tab);
static void SetColors(DAC *tab, int lum);
static void Clear(uint8 color = 0);
static void CopyPage(uint16 d, uint16 s = 3);
static void Sunrise(DAC *tab);
static void Sunset(void);
void Show(void);
void Update(void);
};
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
}
char *NumStr(char *str, int num);
//static void Video (void);
uint16 *SaveScreen(void);
void RestoreScreen(uint16 * &sav);
SPRITE *SpriteAt(int x, int y);
SPRITE *Locate(int ref);
extern bool SpeedTest;
} // End if namespace CGE
#endif
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