blob: e5bc962c3141dfda8b59b420d2372581655c703a (
plain) (
tree)
|
|
// 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
/***************************************************************************
INTERFACE CONFIGURATION MACROS
***************************************************************************/
#define MCFG_CESBLIT_ADD(_tag, _screen, _clock) \
MCFG_DEVICE_ADD(_tag, CESBLIT, _clock) \
MCFG_VIDEO_SET_SCREEN(_screen)
#define MCFG_CESBLIT_MAP MCFG_DEVICE_PROGRAM_MAP
#define MCFG_CESBLIT_COMPUTE_ADDR(_compute_addr) \
downcast<cesblit_device &>(*device).set_compute_addr(_compute_addr);
#define MCFG_CESBLIT_IRQ_CB(_devcb) \
devcb = &downcast<cesblit_device &>(*device).set_irq_callback(DEVCB_##_devcb);
/***************************************************************************
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
cesblit_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
// configuration
void set_compute_addr(compute_addr_t compute_addr) { m_compute_addr = compute_addr; }
template <class Object> devcb_base &set_irq_callback(Object &&cb) { return m_blit_irq_cb.set_callback(std::forward<Object>(cb)); }
DECLARE_WRITE16_MEMBER(color_w);
DECLARE_WRITE16_MEMBER(addr_hi_w);
DECLARE_WRITE16_MEMBER(regs_w);
DECLARE_READ16_MEMBER(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
|