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// license:BSD-3-Clause
// copyright-holders:Luca Elia
/***************************************************************************
CES Blitter, with two layers and double buffering (Xilinx FPGA)
***************************************************************************/
#ifndef MAME_VIDEO_CESBLIT_H
#define MAME_VIDEO_CESBLIT_H
#pragma once
/***************************************************************************
TYPE DEFINITIONS
***************************************************************************/
// ======================> cesblit_device
class cesblit_device : public device_t,
public device_video_interface,
public device_memory_interface
{
public:
typedef int (*compute_addr_t) (uint16_t reg_low, uint16_t reg_mid, uint16_t reg_high);
// construction/destruction
template <typename T>
cesblit_device(const machine_config &mconfig, const char *tag, device_t *owner, const XTAL &clock, T &&screen_tag)
: cesblit_device(mconfig, tag, owner, clock)
{
set_screen(std::forward<T>(screen_tag));
}
cesblit_device(const machine_config &mconfig, const char *tag, device_t *owner, const XTAL &clock);
// configuration
void set_compute_addr(compute_addr_t compute_addr) { m_compute_addr = compute_addr; }
auto irq_callback() { return m_blit_irq_cb.bind(); }
void color_w(offs_t offset, uint16_t data, uint16_t mem_mask = ~0);
void addr_hi_w(offs_t offset, uint16_t data, uint16_t mem_mask = ~0);
void regs_w(offs_t offset, uint16_t data, uint16_t mem_mask = ~0);
uint16_t status_r();
uint32_t screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
protected:
// device-level overrides
virtual void device_start() override;
virtual void device_stop() override;
virtual space_config_vector memory_space_config() const override;
void do_blit();
address_space_config m_space_config;
address_space *m_space;
devcb_write_line m_blit_irq_cb; // blit finished irq
bitmap_ind16 m_bitmap[2][2];
uint16_t m_regs[0x12/2];
uint16_t m_color;
uint16_t m_addr_hi;
compute_addr_t m_compute_addr;
};
/***************************************************************************
GLOBAL VARIABLES
***************************************************************************/
// device type definition
DECLARE_DEVICE_TYPE(CESBLIT, cesblit_device)
#endif // MAME_VIDEO_CESBLIT_H
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