/*
 * games/_shared/ - shared routines for games
 *
 * my-graph.h - universal graphics library header file
 * ____________________________________________________________
 *
 * Developed by Ondrej Jombik <nepto@platon.sk>
 * Copyright (c) 2003-2004 Platon SDG, http://platon.sk/
 * All rights reserved.
 *
 * See README file for more information about this software.
 * See COPYING file for license information.
 *
 * Download the latest version from
 * http://platon.sk/projects/games/
 *
 * Changelog:
 * 2003-05-10 - created
 * 2003-08-12 - X11 adaptations
 */

/* $Platon: games/_shared/my-graph.h,v 1.7 2003/08/12 20:50:59 nepto Exp $ */

#ifndef _MY_GRAPH_H
#  define _MY_GRAPH_H

#include <system.h> /* target operating system type */

#if PLATON_SYSTEM_MSDOS
#  include <graphics.h>
#endif

#if PLATON_SYSTEM_WIN32
#  include <winbgim.h>
#endif

#if PLATON_SYSTEM_SVGALIB
#  include <vga.h>
#  include <vgagl.h>
#endif

#if PLATON_SYSTEM_X11
#  include <x11-bgi.h>
#endif

int my_graph_init(int pagging);
void my_graph_refresh(void);
void my_graph_close(void);

#if PLATON_SYSTEM_MSDOS
#  define putimage_BGI			putimage
#  define putimage_BGI_cached	putimage
#else /* old putimage() functionality for all platforms except MS-Dos */
#  define PUTIMAGE_BGI_CACHE_SIZE		(32)
void putimage_BGI_cached(const int x, const int y, void *image, const int op);
void putimage_BGI(const int x, const int y, void *image, const int op);
#endif

#if PLATON_SYSTEM_SVGALIB

struct BGIimage {
	short width;
	short height;
	int   reserved; /* let bits be aligned to DWORD boundary */
	char  bits[1];
};
struct textsettingstype {
    int font;
    int direction;
    int charsize;
    int horiz;
    int vert;
};
#define MAXCOLORS 15
struct palettetype {
    unsigned char size;
    signed char colors[MAXCOLORS+1];
};
enum text_just /* Horizontal and vertical justification for settextjustify */
{
    LEFT_TEXT   = 0,
    CENTER_TEXT = 1,
    RIGHT_TEXT  = 2,
    BOTTOM_TEXT = 0,
	/* CENTER_TEXT = 1,  already defined above */
    TOP_TEXT    = 2
};
enum fill_patterns {        /* Fill patterns for get/setfillstyle */
	EMPTY_FILL,     /* fills area in background color */
	SOLID_FILL,     /* fills area in solid fill color */
	LINE_FILL,      /* --- fill */
	LTSLASH_FILL,       /* /// fill */
	SLASH_FILL,     /* /// fill with thick lines */
	BKSLASH_FILL,       /* \\\ fill with thick lines */
	LTBKSLASH_FILL,     /* \\\ fill */
	HATCH_FILL,     /* light hatch fill */
	XHATCH_FILL,        /* heavy cross hatch fill */
	INTERLEAVE_FILL,    /* interleaving line fill */
	WIDE_DOT_FILL,      /* Widely spaced dot fill */
	CLOSE_DOT_FILL,     /* Closely spaced dot fill */
	USER_FILL       /* user defined fill */
};
enum putimage_ops {     /* BitBlt operators for putimage */
    COPY_PUT,       /* MOV */
    XOR_PUT,        /* XOR */
    OR_PUT,         /* OR  */
    AND_PUT,        /* AND */
    NOT_PUT         /* NOT */
};

#define		grOk						1
#define		graphresult()				1
#define		grapherrormsg(__code)		"grapherrormsg()"
#define		cleardevice()				gl_clearscreen(BLACK)
#define		getmaxx()					(vga_getxdim() - 1)
#define		getmaxy()					(vga_getydim() - 1)
#define		putpixel(__x, __y, __color)	gl_setpixel(__x, __y, __color)
#define		getpixel(__x, __y)			gl_getpixel(__x, __y)
void setcolor(const int color);
void setfillstyle(const int pattern, const int color);
void moveto(const int x, const int y);
void moverel(const int dx, const int dy);
void line(const int x1, const int y1, const int x2, const int y2);
void rectangle(const int x1, const int y1, const int x2, const int y2);
void bar(const int x1, const int y1, const int x2, const int y2);
void bar3d(const int x1, const int y1, const int x2, const int y2, const int depth, const int topflag);
void ellipse(const int x, const int y, const int stangle, const int endangle,
		const int xradius, const int yradius);
void fillellipse(const int x, const int y, const int xradius, const int yradius);
int textheight(char *str);
int textwidth(char *str);
void gettextsettings(struct textsettingstype *texttypeinfo);
void settextstyle(int font, int direction, int charsize);
void settextjustify(int horiz, int vert);
void outtext(char *str);
void outtextxy(const int x, const int y, char *str);
unsigned int imagesize(const int x1, const int y1, const int x2, const int y2);
void getimage(const int x1, const int y1, const int x2, const int y2, void *image);
void putimage(const int x, const int y, void *image, int bitblt);
struct palettetype *getdefaultpalette(void);
void getpalette(struct palettetype *palette);
void setpalette(int colornum, int color);
void setallpalette(const struct palettetype *palette);

#endif /* #if PLATON_SYSTEM_SVGALIB */

#endif /* ifndef _MY_GRAPH_H */