enum {
	SCRNUPD_FLASH		= (1 << 0),
	SCRNUPD_ALLFLASH	= (1 << 1),
	SCRNUPD_PALANDPLY	= (1 << 2)
};

enum {
	MAKESCRN_320x200S	= 0,
	MAKESCRN_640x200S	= 1,
	MAKESCRN_320x200H	= 2,
	MAKESCRN_640x200H	= 3,
	MAKESCRN_320x400	= 4,
	MAKESCRN_640x400	= 5,
	MAKESCRN_4096		= 6
};

typedef struct {
	UINT	x;
	UINT	y;
} SCRNPOS;

typedef struct {
	UINT8	*disp1;
	UINT8	*disp2;

	UINT8	dispflag;
	UINT8	dispmode;
	UINT8	drawmode;
	UINT8	blinktest;

	UINT	vramtop;
	UINT	fontycnt;
	UINT	fontcy;
	UINT	charcy;

	UINT	surfcx;
	UINT	surfrx;
	UINT	surfcy;
//	UINT	surfsy;
	UINT	surfstep;
	UINT	vramsize;

	UINT8	patx2[0x100];
} MAKESCRN;


#if MAKESCRN_VRAMFF
enum
{
	MAKESCRN_VIDEOWIDTH		= 256,
	MAKESCRN_VIDEOHEIGHT	= 192,
	MAKESCRN_VIDEOPAGE		= 256,
	MAKESCRN_VIDEOYALIGN	= 512,
};
#else	/* MAKESCRN_VRAMFF */
enum
{
	MAKESCRN_VIDEOWIDTH		= 256,
	MAKESCRN_VIDEOHEIGHT	= 192,
	MAKESCRN_VIDEOPAGE		= (256 * 192),
	MAKESCRN_VIDEOYALIGN	= 256,
};

#endif	/* MAKESCRN_VRAMFF */


#ifdef __cplusplus
extern "C" {
#endif

extern	SCRNPOS		scrnpos;
extern	MAKESCRN	makescrn;

void scrnupdate(void);
void makescrn_initialize(void);
void makescrn_reset(void);

#ifdef __cplusplus
}
#endif