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// license:BSD-3-Clause
// copyright-holders:Luca Elia, David Haywood
#ifndef MAME_VIDEO_X1_001_H
#define MAME_VIDEO_X1_001_H

#pragma once

typedef device_delegate<int (uint16_t code, uint8_t color)> gfxbank_cb_delegate;

#define X1_001_SPRITE_GFXBANK_CB_MEMBER(_name) int _name(uint16_t code, uint8_t color)

class x1_001_device : public device_t, public device_gfx_interface
{
public:
	x1_001_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
	template <typename T> x1_001_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock, T &&palette_tag, const gfx_decode_entry *gfxinfo)
		: x1_001_device(mconfig, tag, owner, clock)
	{
		set_info(gfxinfo);
		set_palette(std::forward<T>(palette_tag));
	}

	// configuration
	template <typename... T> void set_gfxbank_callback(T &&... args) { m_gfxbank_cb.set(std::forward<T>(args)...); }

	void spritebgflag_w8(uint8_t data);

	uint16_t spritectrl_r16(offs_t offset);
	void spritectrl_w16(offs_t offset, uint16_t data, uint16_t mem_mask = ~0);
	uint8_t spritectrl_r8(offs_t offset);
	void spritectrl_w8(offs_t offset, uint8_t data);

	uint16_t spriteylow_r16(offs_t offset);
	void spriteylow_w16(offs_t offset, uint16_t data, uint16_t mem_mask = ~0);
	uint8_t spriteylow_r8(offs_t offset);
	void spriteylow_w8(offs_t offset, uint8_t data);

	uint8_t spritecodelow_r8(offs_t offset);
	void spritecodelow_w8(offs_t offset, uint8_t data);
	uint8_t spritecodehigh_r8(offs_t offset);
	void spritecodehigh_w8(offs_t offset, uint8_t data);
	uint16_t spritecode_r16(offs_t offset);
	void spritecode_w16(offs_t offset, uint16_t data, uint16_t mem_mask = ~0);

	void draw_sprites(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect, int bank_size);

	void setac_eof();
	void tnzs_eof();

	// position kludges for seta.cpp & srmp2.cpp
	void set_fg_xoffsets(int flip, int noflip) { m_fg_flipxoffs = flip; m_fg_noflipxoffs = noflip; }
	void set_fg_yoffsets(int flip, int noflip) { m_fg_flipyoffs = flip; m_fg_noflipyoffs = noflip; }
	void set_bg_yoffsets(int flip, int noflip) { m_bg_flipyoffs = flip; m_bg_noflipyoffs = noflip; }
	void set_bg_xoffsets(int flip, int noflip) { m_bg_flipxoffs = flip; m_bg_noflipxoffs = noflip; }

	void set_colorbase(int base) { m_colorbase = base; }
	void set_spritelimit(int limit) { m_spritelimit = limit; }
	void set_transpen(int pen) { m_transpen = pen; }

	int is_flipped() { return ((m_spritectrl[ 0 ] & 0x40) >> 6); }

protected:
	virtual void device_start() override ATTR_COLD;
	virtual void device_reset() override ATTR_COLD;

private:
	void draw_background(bitmap_ind16 &bitmap, const rectangle &cliprect, int bank_size);
	void draw_foreground(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect, int bank_size);

	gfxbank_cb_delegate m_gfxbank_cb;

	// configuration
	int m_fg_flipxoffs, m_fg_noflipxoffs;
	int m_fg_flipyoffs, m_fg_noflipyoffs;
	int m_bg_flipyoffs, m_bg_noflipyoffs;
	int m_bg_flipxoffs, m_bg_noflipxoffs;
	int m_colorbase;
	int m_spritelimit;
	int m_transpen;

	// live state
	uint8_t m_bgflag = 0;
	uint8_t m_spritectrl[4];
	std::unique_ptr<uint8_t[]> m_spriteylow;
	std::unique_ptr<uint16_t[]> m_spritecode;
};

DECLARE_DEVICE_TYPE(X1_001, x1_001_device)

#endif // MAME_VIDEO_X1_001_H