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// license:BSD-3-Clause
// copyright-holders:Wilbert Pol
/**********************************************************************
Hudson/NEC HuC6260 interface and definitions
**********************************************************************/
#ifndef MAME_VIDEO_HUC6260_H
#define MAME_VIDEO_HUC6260_H
#pragma once
class huc6260_device : public device_t,
public device_palette_interface,
public device_video_interface
{
public:
static constexpr unsigned PALETTE_SIZE = 1024;
/* Screen timing stuff */
static constexpr unsigned WPF = 1365; // width of a line in frame including blanking areas
static constexpr unsigned LPF = 263; // max number of lines in a single frame
// construction/destruction
huc6260_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
auto next_pixel_data() { return m_next_pixel_data_cb.bind(); }
auto time_til_next_event() { return m_time_til_next_event_cb.bind(); }
auto vsync_changed() { return m_vsync_changed_cb.bind(); }
auto hsync_changed() { return m_hsync_changed_cb.bind(); }
void video_update(bitmap_ind16 &bitmap, const rectangle &cliprect);
DECLARE_READ8_MEMBER( read );
DECLARE_WRITE8_MEMBER( write );
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 uint32_t palette_entries() const override { return PALETTE_SIZE; }
private:
void palette_init();
int m_last_h;
int m_last_v;
int m_height;
/* 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;
uint16_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;
};
DECLARE_DEVICE_TYPE(HUC6260, huc6260_device)
#endif // MAME_VIDEO_HUC6260_H
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