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// license:BSD-3-Clause
// copyright-holders:Wilbert Pol
/**********************************************************************
Hudson/NEC HuC6260 interface and definitions
**********************************************************************/
#ifndef __HUC6260_H_
#define __HUC6260_H_
#include "emu.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 */
#define MCFG_HUC6260_NEXT_PIXEL_DATA_CB(_devcb) \
devcb = &huc6260_device::set_next_pixel_data_callback(*device, DEVCB_##_devcb);
#define MCFG_HUC6260_TIME_TIL_NEXT_EVENT_CB(_devcb) \
devcb = &huc6260_device::set_time_til_next_event_callback(*device, DEVCB_##_devcb);
#define MCFG_HUC6260_VSYNC_CHANGED_CB(_devcb) \
devcb = &huc6260_device::set_vsync_changed_callback(*device, DEVCB_##_devcb);
#define MCFG_HUC6260_HSYNC_CHANGED_CB(_devcb) \
devcb = &huc6260_device::set_hsync_changed_callback(*device, DEVCB_##_devcb);
class huc6260_device : public device_t,
public device_video_interface
{
public:
// construction/destruction
huc6260_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
template<class _Object> static devcb_base &set_next_pixel_data_callback(device_t &device, _Object object) { return downcast<huc6260_device &>(device).m_next_pixel_data_cb.set_callback(object); }
template<class _Object> static devcb_base &set_time_til_next_event_callback(device_t &device, _Object object) { return downcast<huc6260_device &>(device).m_time_til_next_event_cb.set_callback(object); }
template<class _Object> static devcb_base &set_vsync_changed_callback(device_t &device, _Object object) { return downcast<huc6260_device &>(device).m_vsync_changed_cb.set_callback(object); }
template<class _Object> static devcb_base &set_hsync_changed_callback(device_t &device, _Object object) { return downcast<huc6260_device &>(device).m_hsync_changed_cb.set_callback(object); }
void video_update(bitmap_ind16 &bitmap, const rectangle &cliprect);
DECLARE_READ8_MEMBER( read );
DECLARE_WRITE8_MEMBER( write );
DECLARE_PALETTE_INIT(huc6260);
READ8_MEMBER(palette_direct_read);
WRITE8_MEMBER(palette_direct_write);
protected:
// device-level overrides
virtual void device_start() override;
virtual void device_reset() override;
virtual void device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr) override;
virtual machine_config_constructor device_mconfig_additions() const override;
private:
int m_last_h;
int m_last_v;
int m_height;
/* callbacks */
/* Callback function to retrieve pixel data */
devcb_read16 m_next_pixel_data_cb;
/* TODO: Choose proper types */
/* Callback function to get time until next event */
devcb_read16 m_time_til_next_event_cb;
/* Callback function which gets called when vsync changes */
devcb_write_line m_vsync_changed_cb;
/* Callback function which gets called when hsync changes */
devcb_write_line m_hsync_changed_cb;
uint16_t m_palette[512];
uint16_t m_address;
uint8_t m_greyscales; /* Should the HuC6260 output grey or color graphics */
uint8_t m_blur; /* Should the edges of graphics be blurred/Select screen height 0=262, 1=263 */
uint8_t m_pixels_per_clock; /* Number of pixels to output per colour clock */
uint16_t m_pixel_data;
uint8_t m_pixel_clock;
emu_timer *m_timer;
std::unique_ptr<bitmap_ind16> m_bmp;
};
extern const device_type HUC6260;
#endif
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