/*

Based on the SG C Tools 1.7
(C) 1993 Steve Goldsmith

$Id: vdc.h,v 1.3 2016-06-16 21:13:06 dom Exp $

*/

#ifndef __C128VDC_H__
#define __C128VDC_H__

#include <sys/compiler.h>
#include <graphics.h>

#ifndef uchar
  #define uchar unsigned char
#endif

#ifndef ushort
  #define ushort unsigned int
#endif

#ifndef ulong
  #define ulong unsigned long
#endif


#define vdcStatusReg 0xD600    /* vdc status register */
#define vdcDataReg   0xD601    /* vdc data register */

#define vdcHzTotal          0  /* vdc internal registers */
#define vdcHzDisp           1
#define vdcHzSyncPos        2
#define vdcVtHzSyncWidth    3
#define vdcVtTotal          4
#define vdcVtTotalAdj       5
#define vdcVtDisp           6
#define vdcVtSyncPos        7
#define vdcIlaceMode        8
#define vdcChTotalVt        9
#define vdcCurStScanLine   10
#define vdcCurEndScanLine  11
#define vdcDspStAddrHi     12
#define vdcDspStAddrLo     13
#define vdcCurPosHi        14
#define vdcCurPosLo        15
#define vdcLightPenVt      16
#define vdcLightPenHz      17
#define vdcUpdAddrHi       18
#define vdcUpdAddrLo       19
#define vdcAttrStAddrHi    20
#define vdcAttrStAddrLo    21
#define vdcChDspHz         22
#define vdcChDspVt         23
#define vdcVtSmScroll      24
#define vdcHzSmScroll      25
#define vdcFgBgColor       26
#define vdcAddrIncPerRow   27
#define vdcChSetStAddr     28
#define vdcUlScanLineCnt   29
#define vdcWordCnt         30
#define vdcCPUData         31
#define vdcBlkCpySrcAddrHi 32
#define vdcBlkCpySrcAddrLo 33
#define vdcDispEnableSt    34
#define vdcDispEnableEnd   35
#define vdcRamRefresh      36

#define vdcBlack        0      /* vdc rgb colors */
#define vdcDarkGray     1
#define vdcDarkBlue     2
#define vdcLightBlue    3
#define vdcDarkGreen    4
#define vdcLightGreen   5
#define vdcDarkCyan     6
#define vdcLightCyan    7
#define vdcDarkRed      8
#define vdcLightRed     9
#define vdcDarkPurple  10
#define vdcLightPurple 11
#define vdcDarkYellow  12
#define vdcLightYellow 13
#define vdcMediumGray  14
#define vdcWhite       15

#define vdcAltChrSet 0x80      /* vdc text mode attribute bits */
#define vdcRvsVid    0x40
#define vdcUnderline 0x20
#define vdcBlink     0x10
#define vdcRed       0x08
#define vdcGreen     0x04
#define vdcBlue      0x02
#define vdcIntensity 0x01

#define vdcCurSolid  0         /* vdc cursor modes used by setcursorvdc() */
#define vdcCurNone   1
#define vdcCurRate16 2
#define vdcCurRate32 3

#define vdcMaxBlock      255   /* vdc character set stuff */
#define vdcCharsPerSet   256
#define vdcMaxCharBytes  32

#define vdcOddFldOfs     21360 /* 640 X 480 interlace odd field offset */

extern ushort vdcDispMem;

extern uchar __LIB__  invdc(ushort RegNum) __z88dk_fastcall;
extern void __LIB__               outvdc(ushort RegNum, ushort RegVal) __smallc;
extern void __LIB__     outvdc_callee(ushort RegNum, ushort RegVal) __smallc __z88dk_callee;
#define outvdc(a,b) outvdc_callee(a,b)

extern void __LIB__ mapvdc(void);
extern void __LIB__ savevdc(void);
extern void __LIB__ restorevdc(void);

extern void __LIB__ fillmemvdc(ushort FillMem, ushort FillLen, ushort Filler) __smallc;
extern void __LIB__ copymemvdc(ushort SMem, ushort DMem, ushort CopyLen) __smallc;

extern uchar __LIB__ *memtobufvdc(ushort VidMem, ushort CopyLen) __smallc;
extern void __LIB__ buftomemvdc(uchar *BufPtr, ushort VidMem, ushort CopyLen) __smallc;

extern uchar __LIB__ is64kvdc(void);
extern void __LIB__ set64kvdc(void);
extern void __LIB__ attrsoffvdc(void);
extern void __LIB__ attrsonvdc(void);
extern void __LIB__ setcursorvdc(ushort Top, ushort Bottom, ushort Mode) __smallc;
extern void __LIB__ setcharvdc(ushort CharMem);
extern void __LIB__ setdsppagevdc(ushort DPage, ushort APage) __smallc;

extern void __LIB__ clrscrvdc(ushort Ch);
extern void __LIB__ clrattrvdc(ushort Attr);
extern void __LIB__ filldspvdc(ushort X, ushort Y, ushort CLen, ushort Ch) __smallc;
extern void __LIB__ fillattrvdc(ushort X, ushort Y, ushort ALen, ushort Attr) __smallc;
extern void __LIB__ copydspvdc(ushort SDPage, ushort SAPage, ushort DDPage, ushort DAPage) __smallc;

extern void __LIB__ scrollupvdc(ushort X1, ushort Y1, ushort X2, ushort Y2) __smallc;
extern void __LIB__ scrolldownvdc(ushort X1, ushort Y1, ushort X2, ushort Y2) __smallc;
extern void __LIB__ clrwinvdc(ushort X1, ushort Y1, ushort X2, ushort Y2, ushort Ch) __smallc;
extern void __LIB__ clrwinattrvdc(ushort X1, ushort Y1, ushort X2, ushort Y2, ushort Ch) __smallc;
extern void __LIB__ winvdc(ushort X1, ushort Y1, ushort X2, ushort Y2, ushort Attr, char *Title) __smallc;

extern void __LIB__ printstrvdc(ushort X, ushort Y, ushort Attr, char *TextStr) __smallc;

extern void __LIB__ setbitmapvdc(ushort DispMem, ushort AttrMem, ushort F, ushort B) __smallc;
extern void __LIB__ clrbitmapvdc(ushort Filler);
extern void __LIB__ setpixvdc(int X, int Y) __smallc;
//#define setpixvdc(x,y) plot(x,y)
extern void __LIB__ linevdc(int X1, int Y1, int X2, int Y2) __smallc;
//#define linevdc(x1,y1,x2,y2) draw(x1,y1,x2,y2)

extern void __LIB__ ellipsevdc(int XC, int YC, int A, int B) __smallc;
extern void __LIB__ printbmvdc(ushort X, ushort Y, ushort Attr, char *TextStr) __smallc;

extern void __LIB__ set80x50textvdc(void);
extern void __LIB__ setbitmapintvdc(ushort DispMem, ushort AttrMem, ushort F, ushort B) __smallc;
extern void __LIB__ setpixivdc(int X, int Y) __smallc;
extern void __LIB__ lineivdc(int X1, int Y1, int X2, int Y2) __smallc;
extern void __LIB__ ellipseivdc(int XC, int YC, int A, int B) __smallc;
extern void __LIB__ printbmivdc(ushort X, ushort Y, char *TextStr) __smallc;

#endif