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/**********************************************************************
Hudson/NEC HuC6260 interface and definitions
**********************************************************************/
#ifndef __HUC6260_H_
#define __HUC6260_H_
#include "emu.h"
#include "machine/devhelpr.h"
#define HUC6260_PALETTE_SIZE 1024
/* Screen timing stuff */
#define HUC6260_WPF 1365 /* width of a line in frame including blanking areas */
#define HUC6260_LPF 263 /* max number of lines in a single frame */
PALETTE_INIT( huc6260 );
#define MCFG_HUC6260_ADD( _tag, clock, _intrf ) \
MCFG_DEVICE_ADD( _tag, HUC6260, clock ) \
MCFG_DEVICE_CONFIG( _intrf )
typedef struct _huc6260_interface huc6260_interface;
struct _huc6260_interface
{
/* Tag for the screen we will be drawing on */
const char *screen_tag;
/* Callback function to retrieve pixel data */
devcb_read16 get_next_pixel_data;
/* TODO: Choose proper types */
/* Callback function to get time until next event */
devcb_read16 get_time_til_next_event;
/* Callback function which gets called when vsync changes */
devcb_write_line vsync_changed;
/* Callback function which gets called when hsync changes */
devcb_write_line hsync_changed;
};
class huc6260_device : public device_t,
public huc6260_interface
{
public:
// construction/destruction
huc6260_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
void video_update(bitmap_ind16 &bitmap, const rectangle &cliprect);
DECLARE_READ8_MEMBER( read );
DECLARE_WRITE8_MEMBER( write );
protected:
// device-level overrides
virtual void device_config_complete();
virtual void device_start();
virtual void device_reset();
virtual void device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr);
private:
screen_device *m_screen;
int m_last_h;
int m_last_v;
int m_height;
/* callbacks */
devcb_resolved_read16 m_get_next_pixel_data;
devcb_resolved_read16 m_get_time_til_next_event;
devcb_resolved_write_line m_hsync_changed;
devcb_resolved_write_line m_vsync_changed;
UINT16 m_palette[512];
UINT16 m_address;
UINT8 m_greyscales; /* Should the HuC6260 output grey or color graphics */
UINT8 m_blur; /* Should the edges of graphics be blurred/Select screen height 0=262, 1=263 */
UINT8 m_pixels_per_clock; /* Number of pixels to output per colour clock */
UINT16 m_pixel_data;
UINT8 m_pixel_clock;
emu_timer *m_timer;
bitmap_ind16 *m_bmp;
};
extern const device_type HUC6260;
#endif
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