#ifndef _VGA_H
#define _VGA_H

/* palette index to be used as transparent color */
#define TRANSPARENT 16

typedef struct {
    uint16_t x;
    uint16_t y;
    uint16_t w;
    uint16_t h;
} Rect;

uint8_t open_framebuffer();
void close_framebuffer();

void set_mode(uint8_t mode);
void wait_vsync();

/* the palette is expected to be 8 bit per color, and will be converted to VGA's 6 bit per color */
void set_palette(const uint8_t *palette);

void blit(const uint8_t *sprite, const Rect *dst);
void blit_erase(uint8_t c);
void blit_update();

#endif /* _VGA_H */