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#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();
uint8_t 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);
/* in src w is sprite width, h is sprite height */
void blitrc(const uint8_t *sprite, const Rect *src, const Rect *dst);
void blit_erase(uint8_t c);
void blit_update();
#endif /* _VGA_H */
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