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https://github.com/isometimes/rpi4-osdev
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82 lines
2.5 KiB
C
82 lines
2.5 KiB
C
#include "include/mb.h"
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#define NULL 0
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#define rgb(r,g,b) (r<<16)|(g<<8)|b
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typedef struct {
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short xres;
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short yres;
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short videomode;
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long videobanksize;
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short (*bankswitch)(short);
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short screenwidth;
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short screenheight;
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} wgt_sys;
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extern wgt_sys WGT_SYS;
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/* A single palette register definition */
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typedef struct
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{
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unsigned char r,g,b;
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} color;
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extern unsigned int vgapal[256];
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/* A font definition */
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typedef unsigned char * wgtfont;
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extern unsigned char vgafont[224][8];
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/* Text grid settings */
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#define TEXTGRID_OFF 0
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#define TEXTGRID_ON 1
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/* Text transparency settings */
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#define TEXTFG 0
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#define TEXTBG 1
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#define TEXTFGBG 2
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/* Pointer to the active drawing page */
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typedef unsigned int *block;
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extern block abuf;
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/* Current drawing color */
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extern unsigned int currentcolor;
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/* Clipping boundaries */
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extern short bx,by,tx,ty;
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// ######## HELPER FUNCTIONS ########
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void *memset(void *dest, int val, unsigned len);
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int abs(int i);
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int strlen(const char *str);
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// ######## WGT FUNCTIONS ########
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void vga256(void);
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void wsetcolor (unsigned int col);
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void wline (short x, short y, short x2, short y2);
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void whline (short x1, short x2, short y);
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void wcls (unsigned int col);
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unsigned int wgetpixel (short x, short y);
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void wputpixel (short x, short y);
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void wfastputpixel (short x, short y);
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void wclip (short x, short y, short x2, short y2);
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void wcircle (short x_center, short y_center, short radius);
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void wfill_circle (short x_center, short y_center, short radius);
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void wrectangle (short x, short y, short x2, short y2);
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void wbar (short x, short y, short x2, short y2);
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void wbutt (short x, short y, short x2, short y2);
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void wsetrgb (unsigned char num, unsigned char red, unsigned char green, unsigned char blue, color *pal);
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void wsetpalette (unsigned char start, unsigned char finish, color *pal);
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void wreadpalette (unsigned char start, unsigned char finish, color *palc);
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void wfline (short x, short y, short x2, short y2);
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void wstyleline (short x, short y, short x2, short y2, unsigned short style);
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void wellipse (short x_center, short y_center, short x_radius, short y_radius);
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void wfill_ellipse (short x_center, short y_center, short x_radius, short y_radius);
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void wouttextxy (short x, short y, wgtfont font, char *string);
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short woutchar (short asc, short xc, short yc, wgtfont font);
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void wtextcolor (unsigned int col);
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void wtextbackground (unsigned int col);
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void wtexttransparent (short transparent);
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void wtextgrid (short onoff);
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void wregionfill (short x, short y);
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