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#ifndef VGA_H
#define VGA_H
#include <stdbool.h>
#include "string.h"
#include "interrupts.h"
#include "port.h"
#include "driver.h"
#define NOF_MODE_REGS 66
typedef struct {
int x;
int y;
int color_depth;
uint8_t regs[NOF_MODE_REGS];
uint8_t *segment;
} vga_mode_t;
typedef struct {
driver_t base;
interrupt_t *interrupts;
port8_t misc_port;
port8_t crtc_index_port;
port8_t crtc_data_port;
port8_t sequencer_index_port;
port8_t sequencer_data_port;
port8_t graphics_controller_index_port;
port8_t graphics_controller_data_port;
port8_t attribute_controller_index_port;
port8_t attribute_controller_read_port;
port8_t attribute_controller_write_port;
port8_t attribute_controller_reset_port;
vga_mode_t mode;
void *context;
} vga_t;
typedef struct {
driver_vtable_t base;
} vga_vtable_t;
void vga_init( vga_t *vga, void *context );
void vga_activate( void *obj );
void vga_deactivate( void *obj );
void vga_deinit( void *obj );
void vga_print_info( void *obj );
vga_mode_t vga_make_mode( const int x, const int y, const int color_depth );
bool vga_set_mode( vga_t *vga, const vga_mode_t mode );
bool vga_supports_mode( const vga_mode_t mode );
typedef struct {
int R;
int G;
int B;
} vga_color_t;
vga_color_t vga_make_RGB( int R, int G, int B );
void vga_set_pixel( vga_t *vga, const int x, const int y, const vga_color_t color );
void vga_draw_rectangle( vga_t *vga, const int x, const int y, const int w, const int h, const vga_color_t color );
void vga_clear_screen( vga_t *vga, const vga_color_t color );
#endif // VGA_H
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