#include <graph.h>
#ifdef __cplusplus
extern "C" {
#endif

#ifndef qdraw
#define qdraw 1

#define	qc_min(a,b)	(((a) > (b)) ? (b) : (a))
#define	qc_max(a,b)	(((a) < (b)) ? (b) : (a))
#define	qc_abs(a)	(((a) >= 0) ? (a) : -(a))
#define	qc_sign(x)	((x) > 0 ? 1 : ((x) == 0 ? 0 : (-1)))

#ifndef MK_FP
#define MK_FP( seg,ofs ) (void far * ) (( seg << 16 ) +( ofs ))
#endif

#ifndef M_PI
#define M_PI	    3.14159265358979323846
#define M_PI_2      1.57079632679489661923
#define M_PI_4      0.785398163397448309616
#define M_1_PI      0.318309886183790671538
#define M_2_PI      0.636619772367581343076
#define M_1_SQRTPI  0.564189583547756286948
#define M_2_SQRTPI  1.12837916709551257390
#endif

#ifndef LEFT_TEXT
#define LEFT_TEXT 0
#define CENTER_TEXT 1
#define RIGHT_TEXT 2
#define BOTTOM_TEXT 0
#define TOP_TEXT 2
#define HORIZDIR    0
#define VERTDIR     1
#endif

typedef unsigned int usi;

#ifndef _FONTINFO_DEFINED
/* structure for _getfontinfo() */
struct _fontinfo {
	int	type;		/* b0 set = vector,clear = bit map	*/
	int	ascent;		/* pix dist from top to baseline	*/
	int	pixwidth;	/* character width in pixels, 0=prop	*/
	int	pixheight;	/* character height in pixels		*/
	int	avgwidth;	/* average character width in pixels	*/
	char	filename[81];	/* file name including path		*/
	char	facename[32];	/* font name				*/
};
#define _FONTINFO_DEFINED
#endif

#ifndef _GBORDER
#define _GBORDER	2	/* draw outline only */
#define _GFILLINTERIOR	3	/* fill using current fill mask */
#define _GCLEARSCREEN	0
#define _GVIEWPORT	1
#define _GWINDOW	2
#endif

/*      The following C structure defines a Device Status Block.        */
typedef struct {
  unsigned char   stat;                 /* Current device status.       */
  unsigned char   devtype;              /* Device Type Identifier.      */
  unsigned int    xres;                 /* Device Full Resolution in X  */
  unsigned int    yres;                 /* Device Full Resolution in Y  */
  unsigned int    xefres;               /* Device Effective X Resolution*/
  unsigned int    yefres;               /* Device Effective Y Resolution*/
  unsigned int    xinch;                /* Device X Size in inches*1000 */
  unsigned int    yinch;                /* Device Y Size in inches*1000 */
  unsigned int    aspec;                /* Aspect Ratio * 10000         */
  unsigned char   chsizx;               /* Standard char size X         */
  unsigned char   chsizy;               /* Standard char size Y         */
  unsigned char   fcolors;              /* Number of foreground colors  */
  unsigned char   bcolors;              /* Number of background colors  */
} STATUS;

typedef struct {
  unsigned  drivernumber;
  unsigned  drivermode;
  unsigned  storagemode;              /* storage mode for bitmap */
  unsigned  planes;                   /* planes per bit for bitmap */
  unsigned  intleave;                 /* interleave factor */
  unsigned  defaultbgc;               /* default background color, usually 0,
					except for HP PJ where it is white */
  unsigned  drcolormap;
} QC_STATUS;

typedef unsigned char far *VMBRPNTR;

typedef struct {
  VMBRPNTR far *vbitmap;                 /* pointer to virtual bitmap */
  unsigned int    pxres;                 /* Resolution in X  */
  unsigned int    pyres;                 /* Resolution in Y  */
  unsigned int    pstartx;               /* Starting index for X  */
  unsigned int    pstarty;               /* Starting index for Y  */
  unsigned int    vbmrows;               /* # row bytes  */
  unsigned int    vbmcols;               /* # row columns  */
  unsigned int    vbmmode;
  unsigned int    bitspercolor;          /* # bits per color  */
  unsigned int    pixperbyte;            /* # pixels per byte  */
  unsigned int    intrlev;               /* interleave factor */
  unsigned long   vbmsize;                /* virtual bitmap size */
  unsigned char   pmcolors;              /* Number of foreground colors  */
  unsigned char   bcolors;              /* Number of background colors  */
  unsigned char   pmode;                /* output printer mode */
  unsigned char   porient;              /* output orientation, 0 = portrait */
} VBMTYPE;

typedef struct {
  unsigned  a_prnport;   /* alternative output port */
  unsigned  a_orient;    /* orientation 0=portrait, 1 = landscape */
  unsigned  a_formfeed;  /* formfeed 0=no feed, 1 = feed */
  unsigned  a_quietmode; /* 0 = display messages, 1 no display */
  char a_filename[32]; /* filename for output file */
  unsigned a_usecolormap;  /* flag to use user colormap */
  unsigned  a_colormap[16]; /* color map */
  unsigned a_comport[5];   /* comport parameters */
  unsigned a_sizeoverrides[2];
} AUXSTATTYPE;


typedef struct {
  unsigned int   grcmd;               /* BGI command       */
  unsigned int	  p1,p2,p3,p4,p5;	     /* parameters */
  unsigned int    m_strlen;             /* length of string */
  unsigned char m_string[256];	    /* string for default text output	*/
} METATYPE;

enum GRCMDS
{M_NULL, M_MOVE, M_DRAW, M_VECT, M_BAR, M_PATBAR, M_SETPIXEL,
 M_TEXT, M_COLOR, M_FILLSTYLE, M_LINESTYLE,  M_TEXTSTYLE,
 M_PALETTE, M_VIEWPORT, M_CLIP, M_CIRCLE, M_ARC, M_PIE, M_ARC2, M_PIE2};

unsigned v_defbitmap(VBMTYPE *vbm, int x, int y,
		      int startx, int starty,
		      unsigned colors, unsigned intrlev, unsigned bgcolor,
		      unsigned orient, unsigned storage);
void v_freebitmap(VBMTYPE * vbm);
void v_setpixel(VBMTYPE * vbm, int x, int y, unsigned color);
void v_drawline(int x1, int y1, int x2, int y2,
		unsigned color, unsigned patnum);
void sl_setpixel(int x, int y);
void v_moveto(int x, int y);
void sl_drawline(int x1, int y1, int x2, int y2);
void v_lineto(int x, int y);
void v_rectangle(int x1, int y1, int x2, int y2);
void v_bar(int x1, int y1, int x2, int y2,
	   int rectcolor, int fillcolor, unsigned char *fillpattern);
void v_outgraphstring(int x, int y, char far *s, int c,
		    int textdir, int tsiz);
void sl_lineto(int x, int y);
void v_line(int x1, int y1, int x2, int y2);
void _getaspectratio_(int *x, int *y);
double a2r(int a);
void tc_circle(int x, int y, int r);
void tc_arc(int x, int y, int start, int stop, int r, double a);
void tc_pie(int x, int y, int start, int stop, int r, double a);
void fillpolygon( struct xycoord far *points, int numpoints);
void outlinepolygon( struct xycoord far *points, int numpoints);
void tc_settextjustify(int x, int y);
void tc_settextstyle(int font, int orient, int size);
void v_justifystring(char *s);
void tc_outtext( char far *s);
void mc_tc_arc( int x1, int y1, int x2, int y2,
	    int x3, int y3, int x4, int y4,
	    int *xc, int *yc, int *astart, int *astop, int *r,
	    double *asp );
int mc_pie( int control,
	    int x1, int y1, int x2, int y2,
	    int x3, int y3, int x4, int y4 );
int  mc_arc(int x1, int y1, int x2, int y2,
	   int x3, int y3, int x4, int y4);
void qcsettextofs(int tofs);
struct xycoord _getcurrentposition_( void );
struct videoconfig far *_getvideoconfig_( struct videoconfig far *config );
void _setviewport_(int x1, int y1, int x2, int y2);	/* MSC */
void _clearscreen_(int p);
void _setcliprgn_(int x1, int y1, int x2, int y2);
struct xycoord _setgtextvector_(int x, int y);
void mc_justifystring(char *s);
void _outgtext_( char far *text );
void _outtext_(  char far *text );
void _setlinewidth_( unsigned int lw  );
void _setlinestyle_( unsigned int mask );
void _setfillmask_( unsigned char far *mask );
int _getcolor_( void );
int _rectangle_( int control, int x1, int y1, int x2, int y2 );
int _pie_( int control,
	     int x1, int y1, int x2, int y2,
	     int x3, int y3, int x4, int y4 );
void _pie2_(int x, int y, int start, int stop, int r );
void _arc2_(int x, int y, int start, int stop, int r );
int _registerfonts_( char far *pathname );
int _getfontinfo_( struct _fontinfo far *fontbuffer );
int _getfontpoints_(int fontnum, int sizenum);
int _getfontsizenum_(int fontnum, int fontpnts);
void _settextstyle_(int font, int orient, int size);
int _setfont_( char far *options);
int _getgtextextent_( char far *text );
void _gettextstyle_(int *font, int *orient, int *size,
		    int *hjust, int *vjust);
int _setvideomode_( int mode );
int _setcolor_( int c);
int _setpixel_(int x, int y);
struct xycoord _moveto_(int x, int y);
int _lineto_(int x, int y);
int _line_(int x1, int y1, int x2, int y2);
void _circle_(int x, int y, int r);
int  _arc_(int x1, int y1, int x2, int y2,
	   int x3, int y3, int x4, int y4);

unsigned sendto_metafile(unsigned h,
			 unsigned cmd,int v1, int v2,
			 int v3, int v4, int v5,
			 char far *s);
unsigned readfrom_metafile(unsigned h,
			 unsigned far *cmd,int far *v1, int far *v2,
			 int far *v3, int far *v4,int far *v5,
			 char far *s);
unsigned metacmd_dispatcher(unsigned h);
unsigned readauxstatfile(void);
void printcomparams(unsigned comport, unsigned baud,
		    unsigned parity, unsigned wordlen, unsigned stopbits,
		    unsigned handshake);
void logonscreen(void);
void install( int mode );
void init( void );
void clear( void );
void post( void );
void copystatblocks(void);
void makemodename(unsigned dn, unsigned dm);
unsigned printer_dispatcher(VBMTYPE *vbm, unsigned prnport, unsigned dn,
			    unsigned dm, unsigned ff);
int getprnmode(void);
#endif

#ifdef __cplusplus
}
#endif