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// license:BSD-3-Clause
// copyright-holders:Aaron Giles
/***************************************************************************
atarivad.h
Atari VAD video controller device.
***************************************************************************/
#ifndef MAME_VIDEO_ATARIVAD_H
#define MAME_VIDEO_ATARIVAD_H
#include "video/atarimo.h"
#include "tilemap.h"
//**************************************************************************
// TYPE DEFINITIONS
//**************************************************************************
// ======================> atari_vad_device
// device type definition
DECLARE_DEVICE_TYPE(ATARI_VAD, atari_vad_device)
class atari_vad_device : public device_t, public device_video_interface
{
public:
// construction/destruction
template <typename T>
atari_vad_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock, T &&screen_tag)
: atari_vad_device(mconfig, tag, owner, clock)
{
set_screen(std::forward<T>(screen_tag));
}
atari_vad_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
// configuration helpers
auto scanline_int_cb() { return m_scanline_int_cb.bind(); }
// getters
tilemap_device &alpha() const { return *m_alpha_tilemap; }
tilemap_device &playfield() const { return *m_playfield_tilemap; }
tilemap_device &playfield2() const { return *m_playfield2_tilemap; }
atari_motion_objects_device &mob() const { return *m_mob; }
// read/write handlers
DECLARE_READ16_MEMBER(control_read);
DECLARE_WRITE16_MEMBER(control_write);
// playfield/alpha tilemap helpers
DECLARE_WRITE16_MEMBER(alpha_w);
DECLARE_WRITE16_MEMBER(playfield_upper_w);
DECLARE_WRITE16_MEMBER(playfield_latched_lsb_w);
DECLARE_WRITE16_MEMBER(playfield_latched_msb_w);
DECLARE_WRITE16_MEMBER(playfield2_latched_msb_w);
protected:
// device-level overrides
virtual void device_start() override;
virtual void device_reset() override;
virtual void device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr) override;
private:
// timer IDs
enum
{
TID_SCANLINE_INT,
TID_TILEROW_UPDATE,
TID_EOF
};
// internal helpers
void internal_control_write(offs_t offset, uint16_t newword);
void update_pf_xscrolls();
void update_parameter(uint16_t newword);
void update_tilerow(emu_timer &timer, int scanline);
void eof_update(emu_timer &timer);
// configuration state
devcb_write_line m_scanline_int_cb;
// internal state
optional_device<tilemap_device> m_alpha_tilemap;
required_device<tilemap_device> m_playfield_tilemap;
optional_device<tilemap_device> m_playfield2_tilemap;
optional_device<atari_motion_objects_device> m_mob;
optional_shared_ptr<uint16_t> m_eof_data;
emu_timer * m_scanline_int_timer;
emu_timer * m_tilerow_update_timer;
emu_timer * m_eof_timer;
uint32_t m_palette_bank; // which palette bank is enabled
//uint32_t m_pf0_xscroll; // playfield 1 xscroll
uint32_t m_pf0_xscroll_raw; // playfield 1 xscroll raw value
uint32_t m_pf0_yscroll; // playfield 1 yscroll
uint32_t m_pf1_xscroll_raw; // playfield 2 xscroll raw value
uint32_t m_pf1_yscroll; // playfield 2 yscroll
uint32_t m_mo_xscroll; // sprite xscroll
uint32_t m_mo_yscroll; // sprite xscroll
uint16_t m_control[0x40/2]; // control data
};
#endif // MAME_VIDEO_ATARIVAD_H
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