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// license:BSD-3-Clause
// copyright-holders:Paul Leaman
/*************************************************************************
Gun.Smoke
*************************************************************************/
class gunsmoke_state : public driver_device
{
public:
gunsmoke_state(const machine_config &mconfig, device_type type, const char *tag)
: driver_device(mconfig, type, tag),
m_videoram(*this, "videoram"),
m_colorram(*this, "colorram"),
m_scrollx(*this, "scrollx"),
m_scrolly(*this, "scrolly"),
m_spriteram(*this, "spriteram"),
m_maincpu(*this, "maincpu"),
m_gfxdecode(*this, "gfxdecode"),
m_palette(*this, "palette") { }
/* memory pointers */
required_shared_ptr<UINT8> m_videoram;
required_shared_ptr<UINT8> m_colorram;
required_shared_ptr<UINT8> m_scrollx;
required_shared_ptr<UINT8> m_scrolly;
required_shared_ptr<UINT8> m_spriteram;
/* video-related */
tilemap_t *m_bg_tilemap;
tilemap_t *m_fg_tilemap;
UINT8 m_chon;
UINT8 m_objon;
UINT8 m_bgon;
UINT8 m_sprite3bank;
DECLARE_READ8_MEMBER(gunsmoke_protection_r);
DECLARE_WRITE8_MEMBER(gunsmoke_videoram_w);
DECLARE_WRITE8_MEMBER(gunsmoke_colorram_w);
DECLARE_WRITE8_MEMBER(gunsmoke_c804_w);
DECLARE_WRITE8_MEMBER(gunsmoke_d806_w);
TILE_GET_INFO_MEMBER(get_bg_tile_info);
TILE_GET_INFO_MEMBER(get_fg_tile_info);
virtual void machine_start() override;
virtual void machine_reset() override;
virtual void video_start() override;
DECLARE_PALETTE_INIT(gunsmoke);
UINT32 screen_update_gunsmoke(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
void draw_sprites( bitmap_ind16 &bitmap, const rectangle &cliprect );
required_device<cpu_device> m_maincpu;
required_device<gfxdecode_device> m_gfxdecode;
required_device<palette_device> m_palette;
};
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