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// license:LGPL-2.1+
// copyright-holders:Angelo Salese
#ifndef MAME_VIDEO_MB_VCU_H
#define MAME_VIDEO_MB_VCU_H
#pragma once
#include "emupal.h"
//**************************************************************************
// TYPE DEFINITIONS
//**************************************************************************
// ======================> mb_vcu_device
class mb_vcu_device : public device_t,
public device_memory_interface,
public device_video_interface
{
public:
// construction/destruction
mb_vcu_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
// configuration
void set_palette_tag(const char *tag) { m_palette.set_tag(tag); }
void set_cpu_tag(const char *tag) { m_cpu.set_tag(tag); }
// I/O operations
DECLARE_WRITE8_MEMBER( write_vregs );
DECLARE_READ8_MEMBER( read_ram );
DECLARE_WRITE8_MEMBER( write_ram );
DECLARE_READ8_MEMBER( load_params );
DECLARE_READ8_MEMBER( load_gfx );
DECLARE_READ8_MEMBER( load_set_clr );
DECLARE_WRITE8_MEMBER( background_color_w );
DECLARE_READ8_MEMBER( status_r );
DECLARE_WRITE8_MEMBER( vbank_w );
DECLARE_WRITE8_MEMBER( vbank_clear_w );
uint32_t screen_update(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect);
void screen_eof(void);
protected:
// device-level overrides
virtual void device_validity_check(validity_checker &valid) const override;
virtual void device_start() override;
virtual void device_reset() override;
virtual space_config_vector memory_space_config() const override;
private:
inline uint8_t read_byte(offs_t address);
inline void write_byte(offs_t address, uint8_t data);
inline uint8_t read_io(offs_t address);
inline void write_io(offs_t address, uint8_t data);
DECLARE_READ8_MEMBER( mb_vcu_paletteram_r );
DECLARE_WRITE8_MEMBER( mb_vcu_paletteram_w );
void mb_vcu_pal_ram(address_map &map);
void mb_vcu_vram(address_map &map);
const address_space_config m_videoram_space_config;
const address_space_config m_paletteram_space_config;
uint8_t m_status;
std::unique_ptr<uint8_t[]> m_ram;
std::unique_ptr<uint8_t[]> m_palram;
uint16_t m_param_offset_latch;
int16_t m_xpos, m_ypos;
uint8_t m_color1, m_color2;
uint8_t m_mode;
uint16_t m_pix_xsize, m_pix_ysize;
uint8_t m_vregs[4];
uint8_t m_bk_color;
uint8_t m_vbank;
double m_weights_r[2];
double m_weights_g[3];
double m_weights_b[3];
required_device<cpu_device> m_cpu;
required_device<palette_device> m_palette;
};
// device type definition
DECLARE_DEVICE_TYPE(MB_VCU, mb_vcu_device)
//**************************************************************************
// INTERFACE CONFIGURATION MACROS
//**************************************************************************
#define MCFG_MB_VCU_CPU(_tag) \
downcast<mb_vcu_device &>(*device).set_cpu_tag(_tag);
#define MCFG_MB_VCU_PALETTE(_palette_tag) \
downcast<mb_vcu_device &>(*device).set_palette_tag(_palette_tag);
#endif // MAME_VIDEO_MB_VCU_H
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