#ifndef _GRAPHICS_HEADER_
#define _GRAPHICS_HEADER_

#include <stdint.h>

#define SCREEN_WIDTH 280
#define SCREEN_HEIGHT 192

#define SCREEN_CHAR_WIDTH 40
#define SCREEN_CHAR_HEIGHT 24

void initialize_display_buffer(void);
void clear_display_buffer(void);
void draw_number(uint16_t n, uint8_t len, uint8_t x, uint8_t y);
void clear_box(uint8_t w, uint8_t h, uint8_t off_x, uint8_t off_y);
void draw_char(uint8_t x, uint8_t y, uint8_t invert,  uint8_t ch);
void draw_chars(uint8_t x, uint8_t y, uint8_t invert,  uint8_t *buf, uint8_t len);
uint8_t convert_string(uint8_t *buf, uint8_t buf_len, char *str);

#endif /* _GRAPHICS_HEADER_ */