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// license:BSD-3-Clause
// copyright-holders:Pierpaolo Prazzoli, Luca Elia
#include "machine/i8255.h"
typedef device_delegate<UINT16 (UINT16)> igs017_igs031_palette_scramble_delegate;
#define MCFG_PALETTE_SCRAMBLE_CB( _class, _method) \
igs017_igs031_device::set_palette_scramble_cb(*device, igs017_igs031_palette_scramble_delegate(&_class::_method, #_class "::" #_method, NULL, (_class *)0));
#define MCFG_REVERSE_TEXT_BITS \
igs017_igs031_device::static_set_text_reverse_bits(*device);
class igs017_igs031_device : public device_t,
public device_gfx_interface,
public device_video_interface,
public device_memory_interface
{
//static const gfx_layout tilelayout, spritelayout;
DECLARE_GFXDECODE_MEMBER(gfxinfo);
public:
igs017_igs031_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
static void set_palette_scramble_cb(device_t &device,igs017_igs031_palette_scramble_delegate newtilecb);
static void static_set_text_reverse_bits(device_t &device)
{
igs017_igs031_device &dev = downcast<igs017_igs031_device &>(device);
dev.m_revbits = 1;
}
UINT16 palette_callback_straight(UINT16 bgr);
igs017_igs031_palette_scramble_delegate m_palette_scramble_cb;
DECLARE_ADDRESS_MAP(map, 8);
DECLARE_READ8_MEMBER(read);
DECLARE_WRITE8_MEMBER(write);
// the gfx roms were often hooked up with the bits backwards, allow us to handle it here to save doing it in every driver.
int m_revbits;
int m_toggle;
int m_debug_addr;
int m_debug_width;
UINT8 m_video_disable;
tilemap_t *m_fg_tilemap;
tilemap_t *m_bg_tilemap;
UINT8 *m_sprites_gfx;
int m_sprites_gfx_size;
int get_nmi_enable() { return m_nmi_enable; }
int get_irq_enable() { return m_irq_enable; }
int m_nmi_enable;
int m_irq_enable;
DECLARE_WRITE8_MEMBER(palram_w);
DECLARE_READ8_MEMBER(i8255_r);
DECLARE_WRITE8_MEMBER(video_disable_w);
TILE_GET_INFO_MEMBER(get_fg_tile_info);
TILE_GET_INFO_MEMBER(get_bg_tile_info);
DECLARE_WRITE8_MEMBER(fg_w);
DECLARE_WRITE8_MEMBER(bg_w);
void space_w(int offset, UINT8 data);
UINT8 space_r(int offset);
void expand_sprites();
void draw_sprite(bitmap_ind16 &bitmap, const rectangle &cliprect, int sx, int sy, int dimx, int dimy, int flipx, int flipy, int color, int addr);
void draw_sprites(bitmap_ind16 &bitmap, const rectangle &cliprect);
int debug_viewer(bitmap_ind16 &bitmap, const rectangle &cliprect);
UINT32 screen_update_igs017(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
DECLARE_WRITE8_MEMBER(nmi_enable_w);
DECLARE_WRITE8_MEMBER(irq_enable_w);
virtual void video_start();
protected:
virtual void device_start();
virtual void device_reset();
virtual const address_space_config *memory_space_config(address_spacenum spacenum = AS_0) const;
address_space_config m_space_config;
public:
required_shared_ptr<UINT8> m_spriteram;
required_shared_ptr<UINT8> m_fg_videoram;
required_shared_ptr<UINT8> m_bg_videoram;
required_shared_ptr<UINT8> m_palram;
optional_device<i8255_device> m_i8255;
required_device<palette_device> m_palette;
private:
};
extern const device_type IGS017_IGS031;
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