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// license:BSD-3-Clause
// copyright-holders:Luca Elia,Paul Priest

#include "machine/gen_latch.h"
#include "sound/okim6295.h"
#include "video/fuukifg.h"

class fuuki16_state : public driver_device
{
public:
	enum
	{
		TIMER_LEVEL_1_INTERRUPT,
		TIMER_VBLANK_INTERRUPT,
		TIMER_RASTER_INTERRUPT
	};

	fuuki16_state(const machine_config &mconfig, device_type type, const char *tag)
		: driver_device(mconfig, type, tag),
		m_maincpu(*this, "maincpu"),
		m_audiocpu(*this, "audiocpu"),
		m_oki(*this, "oki"),
		m_gfxdecode(*this, "gfxdecode"),
		m_screen(*this, "screen"),
		m_palette(*this, "palette"),
		m_fuukivid(*this, "fuukivid"),
		m_soundlatch(*this, "soundlatch"),
		m_vram(*this, "vram"),
		m_vregs(*this, "vregs"),
		m_unknown(*this, "unknown"),
		m_priority(*this, "priority")
		{ }

	/* devices */
	required_device<cpu_device> m_maincpu;
	required_device<cpu_device> m_audiocpu;
	required_device<okim6295_device> m_oki;
	required_device<gfxdecode_device> m_gfxdecode;
	required_device<screen_device> m_screen;
	required_device<palette_device> m_palette;
	required_device<fuukivid_device> m_fuukivid;
	required_device<generic_latch_8_device> m_soundlatch;

	/* memory pointers */
	required_shared_ptr_array<UINT16,4> m_vram;
	required_shared_ptr<UINT16> m_vregs;
	required_shared_ptr<UINT16> m_unknown;
	required_shared_ptr<UINT16> m_priority;

	/* video-related */
	tilemap_t     *m_tilemap[4];

	/* misc */
	emu_timer   *m_level_1_interrupt_timer;
	emu_timer   *m_vblank_interrupt_timer;
	emu_timer   *m_raster_interrupt_timer;

	DECLARE_WRITE16_MEMBER(vregs_w);
	DECLARE_WRITE16_MEMBER(sound_command_w);
	DECLARE_WRITE8_MEMBER(sound_rombank_w);
	DECLARE_WRITE16_MEMBER(vram_0_w);
	DECLARE_WRITE16_MEMBER(vram_1_w);
	DECLARE_WRITE16_MEMBER(vram_2_w);
	DECLARE_WRITE16_MEMBER(vram_3_w);
	DECLARE_WRITE8_MEMBER(oki_banking_w);

	TILE_GET_INFO_MEMBER(get_tile_info_0);
	TILE_GET_INFO_MEMBER(get_tile_info_1);
	TILE_GET_INFO_MEMBER(get_tile_info_2);
	TILE_GET_INFO_MEMBER(get_tile_info_3);

	virtual void machine_start() override;
	virtual void machine_reset() override;
	virtual void video_start() override;

	UINT32 screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
	inline void get_tile_info(tile_data &tileinfo, tilemap_memory_index tile_index, int _N_);
	inline void vram_w(offs_t offset, UINT16 data, UINT16 mem_mask, int _N_);
	void draw_layer( screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect, int i, int flag, int pri );

protected:
	virtual void device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr) override;
};