// license:BSD-3-Clause
// copyright-holders:Olivier Galibert
#ifndef MAME_VIDEO_K053250PS_H
#define MAME_VIDEO_K053250PS_H
#pragma once
//
// Konami 053250 road generator (Pirate Ship version)
//
#define MCFG_K053250PS_ADD(_tag, _palette_tag, _screen_tag, offx, offy) \
MCFG_DEVICE_ADD(_tag, K053250PS, 12000000) \
MCFG_GFX_PALETTE(_palette_tag) \
MCFG_VIDEO_SET_SCREEN(_screen_tag) \
downcast<k053250ps_device &>(*device).set_offsets(offx, offy);
#define MCFG_K053250PS_DMAIRQ_CB(_cb) \
downcast<k053250ps_device &>(*device).set_dmairq_cb(DEVCB_##_cb);
class k053250ps_device : public device_t,
public device_gfx_interface,
public device_video_interface
{
public:
k053250ps_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
void set_offsets(int offx, int offy)
{
m_offx = offx;
m_offy = offy;
}
template<class _cb> devcb_base &set_dmairq_cb(_cb cb) { return m_dmairq_cb.set_callback(cb); }
DECLARE_READ16_MEMBER(reg_r);
DECLARE_WRITE16_MEMBER(reg_w);
DECLARE_READ16_MEMBER(ram_r);
DECLARE_WRITE16_MEMBER(ram_w);
DECLARE_READ16_MEMBER(rom_r);
DECLARE_WRITE_LINE_MEMBER(vblank_w);
DECLARE_READ_LINE_MEMBER(dmairq_r);
void draw( bitmap_rgb32 &bitmap, const rectangle &cliprect, int colorbase, int flags, bitmap_ind8 &priority_bitmap, int priority );
protected:
// device-level overrides
virtual void device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr) override;
virtual void device_start() override;
virtual void device_reset() override;
private:
enum {
OD_IDLE,
OD_WAIT_START,
OD_WAIT_END
};
devcb_write_line m_dmairq_cb;
int m_timer_lvcdma_state;
bool m_dmairq_on;
// configuration
int m_offx, m_offy;
emu_timer *m_timer_lvcdma;
// internal state
required_region_ptr<uint8_t> m_rom;
std::vector<uint8_t> m_unpacked_rom;
std::vector<uint16_t> m_ram;
uint16_t *m_buffer[2];
uint8_t m_regs[8];
uint8_t m_page;
// internal helpers
void unpack_nibbles();
static void pdraw_scanline32(bitmap_rgb32 &bitmap, const pen_t *pal_base, uint8_t *source,
const rectangle &cliprect, int linepos, int scroll, int zoom,
uint32_t clipmask, uint32_t wrapmask, uint32_t orientation, bitmap_ind8 &priority, uint8_t pri);
};
DECLARE_DEVICE_TYPE(K053250PS, k053250ps_device)
#endif // MAME_VIDEO_K053250PS_H