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// license:BSD-3-Clause
// copyright-holders:Pierpaolo Prazzoli
/*************************************************************************
Ghosts'n Goblins
*************************************************************************/
#include "video/bufsprite.h"
class gng_state : public driver_device
{
public:
gng_state(const machine_config &mconfig, device_type type, const char *tag)
: driver_device(mconfig, type, tag),
m_spriteram(*this, "spriteram") ,
m_fgvideoram(*this, "fgvideoram"),
m_bgvideoram(*this, "bgvideoram"),
m_maincpu(*this, "maincpu"),
m_gfxdecode(*this, "gfxdecode"),
m_palette(*this, "palette") { }
/* memory pointers */
required_device<buffered_spriteram8_device> m_spriteram;
required_shared_ptr<UINT8> m_fgvideoram;
required_shared_ptr<UINT8> m_bgvideoram;
/* video-related */
tilemap_t *m_bg_tilemap;
tilemap_t *m_fg_tilemap;
UINT8 m_scrollx[2];
UINT8 m_scrolly[2];
DECLARE_WRITE8_MEMBER(gng_bankswitch_w);
DECLARE_WRITE8_MEMBER(gng_coin_counter_w);
DECLARE_READ8_MEMBER(diamond_hack_r);
DECLARE_WRITE8_MEMBER(gng_fgvideoram_w);
DECLARE_WRITE8_MEMBER(gng_bgvideoram_w);
DECLARE_WRITE8_MEMBER(gng_bgscrollx_w);
DECLARE_WRITE8_MEMBER(gng_bgscrolly_w);
DECLARE_WRITE8_MEMBER(gng_flipscreen_w);
DECLARE_DRIVER_INIT(diamond);
TILE_GET_INFO_MEMBER(get_fg_tile_info);
TILE_GET_INFO_MEMBER(get_bg_tile_info);
virtual void machine_start() override;
virtual void machine_reset() override;
virtual void video_start() override;
UINT32 screen_update_gng(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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