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// license:BSD-3-Clause
// copyright-holders:Nicola Salmoria
/***************************************************************************

    Sega Zaxxon hardware

***************************************************************************/

#include "machine/74259.h"
#include "sound/samples.h"

class zaxxon_state : public driver_device
{
public:
	zaxxon_state(const machine_config &mconfig, device_type type, const char *tag)
		: driver_device(mconfig, type, tag),
		m_maincpu(*this, "maincpu"),
		m_mainlatch(*this, "mainlatch%u", 1),
		m_samples(*this, "samples"),
		m_gfxdecode(*this, "gfxdecode"),
		m_palette(*this, "palette"),
		m_dials(*this, "DIAL.%u", 0),
		m_videoram(*this, "videoram"),
		m_spriteram(*this, "spriteram"),
		m_colorram(*this, "colorram"),
		m_decrypted_opcodes(*this, "decrypted_opcodes") { }

	required_device<cpu_device> m_maincpu;
	required_device_array<ls259_device, 2> m_mainlatch;
	optional_device<samples_device> m_samples;
	required_device<gfxdecode_device> m_gfxdecode;
	required_device<palette_device> m_palette;

	optional_ioport_array<2> m_dials;

	required_shared_ptr<uint8_t> m_videoram;
	optional_shared_ptr<uint8_t> m_spriteram;
	optional_shared_ptr<uint8_t> m_colorram;
	optional_shared_ptr<uint8_t> m_decrypted_opcodes;

	uint8_t m_int_enabled;
	uint8_t m_coin_status[3];

	uint8_t m_razmataz_dial_pos[2];
	uint16_t m_razmataz_counter;

	uint8_t m_sound_state[3];
	uint8_t m_bg_enable;
	uint8_t m_bg_color;
	uint16_t m_bg_position;
	uint8_t m_fg_color;
	bool m_flip_screen;

	uint8_t m_congo_fg_bank;
	uint8_t m_congo_color_bank;
	uint8_t m_congo_custom[4];

	const uint8_t *m_color_codes;
	tilemap_t *m_fg_tilemap;
	tilemap_t *m_bg_tilemap;
	DECLARE_WRITE_LINE_MEMBER(int_enable_w);
	DECLARE_READ8_MEMBER(razmataz_counter_r);
	DECLARE_WRITE8_MEMBER(zaxxon_control_w);
	DECLARE_WRITE_LINE_MEMBER(coin_counter_a_w);
	DECLARE_WRITE_LINE_MEMBER(coin_counter_b_w);
	DECLARE_WRITE_LINE_MEMBER(coin_enable_w);
	DECLARE_WRITE_LINE_MEMBER(flipscreen_w);
	DECLARE_WRITE_LINE_MEMBER(fg_color_w);
	DECLARE_WRITE8_MEMBER(bg_position_w);
	DECLARE_WRITE_LINE_MEMBER(bg_color_w);
	DECLARE_WRITE_LINE_MEMBER(bg_enable_w);
	DECLARE_WRITE_LINE_MEMBER(congo_fg_bank_w);
	DECLARE_WRITE_LINE_MEMBER(congo_color_bank_w);
	DECLARE_WRITE8_MEMBER(zaxxon_videoram_w);
	DECLARE_WRITE8_MEMBER(congo_colorram_w);
	DECLARE_WRITE8_MEMBER(congo_sprite_custom_w);
	DECLARE_CUSTOM_INPUT_MEMBER(razmataz_dial_r);
	DECLARE_CUSTOM_INPUT_MEMBER(zaxxon_coin_r);
	DECLARE_INPUT_CHANGED_MEMBER(service_switch);
	DECLARE_INPUT_CHANGED_MEMBER(zaxxon_coin_inserted);
	void init_razmataz();
	void init_zaxxonj();
	TILE_GET_INFO_MEMBER(get_bg_tile_info);
	TILE_GET_INFO_MEMBER(zaxxon_get_fg_tile_info);
	TILE_GET_INFO_MEMBER(razmataz_get_fg_tile_info);
	TILE_GET_INFO_MEMBER(congo_get_fg_tile_info);
	virtual void machine_start() override;
	virtual void video_start() override;
	DECLARE_PALETTE_INIT(zaxxon);
	DECLARE_VIDEO_START(razmataz);
	DECLARE_VIDEO_START(congo);
	uint32_t screen_update_zaxxon(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
	uint32_t screen_update_futspy(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
	uint32_t screen_update_razmataz(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
	uint32_t screen_update_congo(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
	DECLARE_WRITE_LINE_MEMBER(vblank_int);
	DECLARE_WRITE8_MEMBER(zaxxon_sound_a_w);
	DECLARE_WRITE8_MEMBER(zaxxon_sound_b_w);
	DECLARE_WRITE8_MEMBER(zaxxon_sound_c_w);
	DECLARE_WRITE8_MEMBER(congo_sound_b_w);
	DECLARE_WRITE8_MEMBER(congo_sound_c_w);
	void video_start_common(tilemap_get_info_delegate fg_tile_info);
	void draw_background(bitmap_ind16 &bitmap, const rectangle &cliprect, int skew);
	inline int find_minimum_y(uint8_t value, int flip);
	inline int find_minimum_x(uint8_t value, int flip);
	void draw_sprites(bitmap_ind16 &bitmap, const rectangle &cliprect, uint16_t flipxmask, uint16_t flipymask);
	void root(machine_config &config);
	void ixion(machine_config &config);
	void futspye(machine_config &config);
	void congo(machine_config &config);
	void szaxxon(machine_config &config);
	void razmataze(machine_config &config);
	void szaxxone(machine_config &config);
	void zaxxon(machine_config &config);
	void zaxxon_samples(machine_config &config);
	void congo_samples(machine_config &config);
	void congo_map(address_map &map);
	void congo_sound_map(address_map &map);
	void decrypted_opcodes_map(address_map &map);
	void ixion_map(address_map &map);
	void zaxxon_map(address_map &map);
};