sb.h

/*
 * Copyright (C) 2019  Edward LEI <edward_lei72@hotmail.com>
 *
 * The code is licensed under the MIT license
 */

#ifndef _SB_H_
#define _SB_H_

#include "type.h"


/*
 * Initialize screenbuffer
 */
void sbInit();

/*
 * Return: the number of character columns of the visible screen
 */
int sbNCols();

/*
 * Return：the number of character rows of the visible screen
 */
int sbNRows();

/*
 * Return: the current character column number
 */
int sbCol();

/*
 * Return: the current character row number
 */
int sbRow();

/*
 * Emulates the putc function
 *   ch - character to be put in framebuffter
 *   dw - double width character?
 *   fg - font type(bold) | font foreground color
 *   bg - background color
 */
void sbPutc(u16_t ch, int dw, ft32_t fg, ft32_t bg);

/*
 * Emulates the puts function
 *   txt - text to be printed
 *   fg - font type(bold) | font foreground color
 *   bg - background color
 s*/
void sbPuts(u16_t *txt, ft32_t fg, ft32_t bg);


#endif