console.c File Reference

#include "console.h"
#include "font/font8x16.h"
#include "hal.h"
#include "color.h"
#include "string.h"
#include <ctype.h>

Data Structures
struct	cell
	A single cell in the console. More...

Macros
#define	SCREEN_X   255
	Screen X resolution.
#define	SCREEN_Y   255
	Screen Y resolution.

Functions
static void	cdrawchar (char c, int row, int col, color_t color)
	Draws a character at a position, using the font specified in font8x16.h.
static void	handle_cntrl_char (char c)
	Handles a control character.
void	credrawchar (uint32_t row, uint32_t col)
	Redraws a character.
void	crefresh (void)
	Refreshes the console's screen.
void	cclear (color_t color)
	Clears the console's screen.
void	cclearchar (uint32_t row, uint32_t col, color_t color)
	Clears a cell.
void	cclearcurchar (color_t color)
	Clears the cell at the cursor's position.
void	cprint (const char *str, color_t color)
	Prints a string to the console, without a newline.
void	cmovecursor (int32_t rows, int32_t cols)
	Moves the cursor by an offset.
void	cprintln (const char *str, color_t color)
	Prints a string to the console followed by a newline.
void	cputchar (char c, color_t color)
	Prints a character at the cursor's position in the given color.
void	cputint (int i, color_t color)
	Writes an integer in base 10 at the cursor's position in the given color.
void	crcursor (void)
	Resets the cursor's position.
void	csetcursor (uint32_t row, uint32_t col)
	Sets the cursor's position.
void	csetrow (int32_t r)
	Sets the cursor's row.
void	csetcol (int32_t c)
	Sets the cursor's column.
uint32_t	cgetcol (void)
	Gets the cursor's column.
uint32_t	cgetrow (void)
	Gets the cursor's row.

Variables
static struct cell	screen_buffer [SCREEN_Y][SCREEN_X] = { 0 }
	The console's screen buffer.
static uint8_t	row = 0
static uint8_t	col = 0

Macro Definition Documentation

SCREEN_X

#define SCREEN_X   255

Screen X resolution.

SCREEN_Y

#define SCREEN_Y   255

Screen Y resolution.

Function Documentation

cclear()

void cclear

(

color_t

color

)

Clears the console's screen.

Parameters

color

Background color.

cclearchar()

void cclearchar	(	uint32_t	row,
		uint32_t	col,
		color_t	color
	)

Clears a cell.

Parameters

row	The row.
col	The column.
color	Background color.

cclearcurchar()

void cclearcurchar

(

color_t

color

)

Clears the cell at the cursor's position.

Parameters

color

Background color.

cdrawchar()

static void cdrawchar ( char  c, int  row, int  col, color_t  color  )

static

Draws a character at a position, using the font specified in font8x16.h.

cgetcol()

uint32_t cgetcol

(

void

)

Gets the cursor's column.

Returns

Column.

cgetrow()

uint32_t cgetrow

(

void

)

Gets the cursor's row.

Returns

Row.

cmovecursor()

void cmovecursor	(	int32_t	rows,
		int32_t	cols
	)

Moves the cursor by an offset.

Parameters

rows	Number of rows.
cols	Number of columns.

cprint()

void cprint	(	const char *	str,
		color_t	color
	)

Prints a string to the console, without a newline.

Parameters

str	String to be printed. Must be null-terminated.
color	Foreground color.

cprintln()

void cprintln	(	const char *	str,
		color_t	color
	)

Prints a string to the console followed by a newline.

Parameters

str	String to be printed. Must be null-terminated.
color	Foreground color of the text.

cputchar()

void cputchar	(	char	c,
		color_t	color
	)

Prints a character at the cursor's position in the given color.

Parameters

c	Character to be written.
color	Foreground color of the text.

cputint()

void cputint	(	int	i,
		color_t	color
	)

Writes an integer in base 10 at the cursor's position in the given color.

Parameters

i	Integer to be written.
color	Foreground color of the text.

crcursor()

void crcursor

(

void

)

Resets the cursor's position.

credrawchar()

void credrawchar	(	uint32_t	row,
		uint32_t	col
	)

Redraws a character.

Parameters

row	The row.
col	The column.

crefresh()

void crefresh

(

void

)

Refreshes the console's screen.

csetcol()

void csetcol

(

int32_t

col

)

Sets the cursor's column.

Parameters

col

Column

csetcursor()

void csetcursor	(	uint32_t	row,
		uint32_t	col
	)

Sets the cursor's position.

Parameters

row	The row.
col	The column.

csetrow()

void csetrow

(

int32_t

row

)

Sets the cursor's row.

Parameters

row

Row.

handle_cntrl_char()

static void handle_cntrl_char ( char  c )

static

Handles a control character.

Variable Documentation

col

uint8_t col = 0

static

row

uint8_t row = 0

static

screen_buffer

struct cell screen_buffer[SCREEN_Y][SCREEN_X] = { 0 }

static

The console's screen buffer.

Note

When accessing, use screen_buffer[x][y].