// license:BSD-3-Clause // copyright-holders:Phil Stroffolino class m57_state : public driver_device { public: m57_state(const machine_config &mconfig, device_type type, const char *tag) : driver_device(mconfig, type, tag), m_videoram(*this, "videoram"), m_scrollram(*this, "scrollram"), m_spriteram(*this, "spriteram"), m_maincpu(*this, "maincpu"), m_gfxdecode(*this, "gfxdecode"), m_palette(*this, "palette") { } /* memory pointers */ required_shared_ptr m_videoram; required_shared_ptr m_scrollram; required_shared_ptr m_spriteram; /* video-related */ tilemap_t* m_bg_tilemap; int m_flipscreen; DECLARE_WRITE8_MEMBER(m57_videoram_w); DECLARE_WRITE8_MEMBER(m57_flipscreen_w); TILE_GET_INFO_MEMBER(get_tile_info); virtual void video_start() override; DECLARE_PALETTE_INIT(m57); UINT32 screen_update_m57(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect); void draw_background(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect); void draw_sprites(bitmap_ind16 &bitmap, const rectangle &cliprect); required_device m_maincpu; required_device m_gfxdecode; required_device m_palette; };