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// license:BSD-3-Clause
// copyright-holders:Bryan McPhail
/*************************************************************************
deco_ace.h
Data East 99 "ACE" Chip Emulation
Original source (from deco32.cpp) by Bryan McPhail, Splited by cam900.
**************************************************************************/
#ifndef MAME_VIDEO_DECO_ACE_H
#define MAME_VIDEO_DECO_ACE_H
#pragma once
/***************************************************************************
TYPE DEFINITIONS
***************************************************************************/
class deco_ace_device : public device_t,
public device_video_interface
{
public:
deco_ace_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
// configuration
void set_palette_tag(const char *tag);
DECLARE_READ32_MEMBER( buffered_palette_r );
DECLARE_READ16_MEMBER( buffered_palette16_r );
DECLARE_READ16_MEMBER( ace_r );
DECLARE_WRITE32_MEMBER( buffered_palette_w );
DECLARE_WRITE16_MEMBER( buffered_palette16_w );
DECLARE_WRITE16_MEMBER( ace_w );
void palette_update();
void set_palette_effect_max(uint32_t val);
uint16_t get_aceram(uint8_t val);
uint8_t get_alpha(uint8_t val);
DECLARE_WRITE16_MEMBER( palette_dma_w );
protected:
// device-level overrides
virtual void device_start() override;
virtual void device_reset() override;
virtual void device_post_load() override;
private:
// internal state
uint32_t m_palette_effect_min;
uint32_t m_palette_effect_max;
required_device<palette_device> m_palette;
std::unique_ptr<uint32_t[]> m_paletteram;
std::unique_ptr<uint32_t[]> m_paletteram_buffered;
std::unique_ptr<uint16_t[]> m_ace_ram;
};
DECLARE_DEVICE_TYPE(DECO_ACE, deco_ace_device)
/***************************************************************************
DEVICE CONFIGURATION MACROS
***************************************************************************/
#define MCFG_DECO_ACE_ADD(_tag) \
MCFG_DEVICE_ADD(_tag, DECO_ACE, 0)
#define MCFG_DECO_ACE_PALETTE(_palette_tag) \
downcast<deco_ace_device &>(*device).set_palette_tag("^" _palette_tag);
#endif // MAME_VIDEO_DECO_ACE_H
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