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#ifndef VGA_H
#define VGA_H
#include <stdint.h>
#include "port.h"
enum {
VGA_DEFAULT_RES_X = 80,
VGA_DEFAULT_RES_Y = 25
};
typedef enum {
VGA_COLOR_BLACK = 0,
VGA_COLOR_BLUE = 1,
VGA_COLOR_GREEN = 2,
VGA_COLOR_CYAN = 3,
VGA_COLOR_RED = 4,
VGA_COLOR_MAGENTA = 5,
VGA_COLOR_BROWN = 6,
VGA_COLOR_LIGHT_GREY = 7,
VGA_COLOR_DARK_GREY = 8,
VGA_COLOR_LIGHT_BLUE = 9,
VGA_COLOR_LIGHT_GREEN = 10,
VGA_COLOR_LIGHT_CYAN = 11,
VGA_COLOR_LIGHT_RED = 12,
VGA_COLOR_LIGHT_MAGENTA = 13,
VGA_COLOR_LIGHT_BROWN = 14,
VGA_COLOR_WHITE = 15
} vga_color_t;
typedef struct {
int res_x; // resolution, default 80
int res_y; // resolution, default 25
int cursor_x; // current cursor position X
int cursor_y; // current cursor position Y
vga_color_t color;
vga_color_t background_color;
port_t crtc_misc_port;
port_t crtc_index_port;
port_t crtc_data_port;
} vga_t;
void vga_init( vga_t *vga );
void vga_clear_screen( vga_t *vga );
void vga_set_cursor( vga_t *vga, const int x, const int y );
void vga_set_cursor_from_hardware( vga_t *vga );
void vga_set_cursor_on_hardware( vga_t *vga );
int vga_get_cursor_x( vga_t *vga );
int vga_get_cursor_y( vga_t *vga );
void vga_set_color( vga_t *vga, const vga_color_t color );
void vga_set_background_color( vga_t *vga, const vga_color_t color );
void vga_put_char_at( vga_t *vga, const int x, const int y, const char c );
void vga_put_string_at( vga_t *vga, const int x, const int y, const char *s );
void vga_put_char( vga_t *vga, const char c );
void vga_put_string( vga_t *vga, const char *s );
void vga_put_hex( vga_t *vga, const uint32_t v );
void vga_put_newline( vga_t *vga );
#endif /* VGA_H */
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