conio.h

Go to the documentation of this file.

/*
** conio.h for lseos in lseos-lib/libc/machdep
** 
** Copyright (c)2004 Vianney Rancurel
** Login   <vianney@epita.fr>
** 
** Started on  Thu Jul  3 15:00:17 2003 Vianney Rancurel
** Last update Mon Dec  6 12:28:23 2004 Vianney Rancurel
*/
#ifndef __MACHDEP_CONIO_H__
#define __MACHDEP_CONIO_H__     1
#include <libc.h>

/*
 * conio context
 */
typedef struct          s_conio
{
  u_int                 width;
  u_int                 height;
#define CGA_WIDTH               80
#define CGA_HEIGHT              25
  u_int                 status;
#define CONIO_ESCAPE            (1<<0u)
#define CONIO_CSI               (1<<1u)
#define CONIO_PN                (1<<2u) 
#define CONIO_LASTCOL           (1<<3u)
  int                   pn1;
  int                   pn2;
  u_char                *buf;
  u_char                attrib;
}                       t_conio;

/* attributes */
enum 
{ 
  ATTRIB_BLACK = 0x0,
  ATTRIB_BLUE = 0x1,
  ATTRIB_GREEN = 0x2,
  ATTRIB_CYAN = 0x3,
  ATTRIB_RED = 0x4,
  ATTRIB_MAGENTA = 0x5,
  ATTRIB_YELLOW = 0x6,
  ATTRIB_WHITE = 0x7,
        
  ATTRIB_BRIGHT = 0x8,
        
  ATTRIB_BLACK_BG = 0x00,
  ATTRIB_BLUE_BG = 0x10,
  ATTRIB_GREEN_BG = 0x20,
  ATTRIB_CYAN_BG = 0x30,
  ATTRIB_RED_BG = 0x40,
  ATTRIB_MAGENTA_BG = 0x50,
  ATTRIB_YELLOW_BG = 0x60,
  ATTRIB_WHITE_BG = 0x70,
        
  ATTRIB_BLINK = 0x80
};

/* video card I/O ports */
#define IO_CGA_INDEX    0x03D4
#define IO_CGA_DATA     0x03D5

/* video card index registers */
#define CURSOR_LO       0x0F
#define CURSOR_HI       0x0E

#define CGA_BUF         0xb8000

/*
 * useful macros
 */
#define CONIO_PUTCHAR(Conio, PosX, PosY, Char, Attrib) \
  (Conio)->buf[((PosX) + (PosY) * (Conio)->width) * 2] = (Char);\
  (Conio)->buf[(((PosX) + (PosY) * (Conio)->width) * 2) + 1] = (Attrib);

#define CONIO_GETCHAR(Conio, PosX, PosY) \
((Conio)->buf[((PosX) + (PosY) * (Conio)->width) * 2])

#define CONIO_GETATTRIB(Conio, PosX, PosY) \
((Conio)->buf[(((PosX) + (PosY) * (Conio)->width) * 2) + 1])

#define CONIO_FG(Attrib)        ((Attrib) & 0xf)
#define CONIO_BG(Attrib)        ((Attrib & 0xf0) >> 4)

extern t_conio          gl_conio;       
/* PROTO conio.c */
/* conio.c */
void conio_gotoxy(t_conio *c, int x, int y);
void conio_getxy(t_conio *c, int *x, int *y);
void conio_clrscr(t_conio *c);
void conio_scrollup(t_conio *c);
void conio_process_buf(t_conio *c, char *buf, int len);
void conio_process_char(t_conio *c, char ch);
#endif

---