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// license:BSD-3-Clause
// copyright-holders:Chris Hardy
/***************************************************************************
Space Firebird hardware
****************************************************************************/
#ifndef MAME_INCLUDES_SPACEFB
#define MAME_INCLUDES_SPACEFB
#pragma once
#include "cpu/mcs48/mcs48.h"
#include "sound/samples.h"
#include "screen.h"
/*
* SPACEFB_PIXEL_CLOCK clocks the star generator circuit. The rest of
* the graphics use a clock half of SPACEFB_PIXEL_CLOCK, thus creating
* double width pixels.
*/
#define SPACEFB_MASTER_CLOCK (20160000)
#define SPACEFB_MAIN_CPU_CLOCK (6000000 / 2)
#define SPACEFB_AUDIO_CPU_CLOCK (6000000) /* this goes to X2, pixel clock goes to X1 */
#define SPACEFB_PIXEL_CLOCK (SPACEFB_MASTER_CLOCK / 2)
#define SPACEFB_HTOTAL (0x280)
#define SPACEFB_HBEND (0x000)
#define SPACEFB_HBSTART (0x200)
#define SPACEFB_VTOTAL (0x100)
#define SPACEFB_VBEND (0x010)
#define SPACEFB_VBSTART (0x0f0)
#define SPACEFB_INT_TRIGGER_COUNT_1 (0x080)
#define SPACEFB_INT_TRIGGER_COUNT_2 (0x0f0)
class spacefb_state : public driver_device
{
public:
spacefb_state(const machine_config &mconfig, device_type type, const char *tag)
: driver_device(mconfig, type, tag),
m_maincpu(*this, "maincpu"),
m_audiocpu(*this, "audiocpu"),
m_samples(*this, "samples"),
m_screen(*this, "screen"),
m_videoram(*this, "videoram") { }
void spacefb(machine_config &config);
void spacefb_audio(machine_config &config);
private:
virtual void machine_start() override;
virtual void machine_reset() override;
virtual void video_start() override;
void spacefb_main_map(address_map &map);
void spacefb_main_io_map(address_map &map);
void spacefb_audio_map(address_map &map);
required_device<cpu_device> m_maincpu;
required_device<i8035_device> m_audiocpu;
required_device<samples_device> m_samples;
required_device<screen_device> m_screen;
required_shared_ptr<uint8_t> m_videoram;
uint8_t m_sound_latch = 0;
emu_timer *m_interrupt_timer = nullptr;
std::unique_ptr<uint8_t[]> m_object_present_map;
uint8_t m_port_0 = 0;
uint8_t m_port_2 = 0;
uint32_t m_star_shift_reg = 0;
double m_color_weights_rg[3]{};
double m_color_weights_b[2]{};
void port_0_w(uint8_t data);
void port_1_w(uint8_t data);
void port_2_w(uint8_t data);
uint8_t audio_p2_r();
DECLARE_READ_LINE_MEMBER(audio_t0_r);
DECLARE_READ_LINE_MEMBER(audio_t1_r);
TIMER_CALLBACK_MEMBER(interrupt_callback);
void start_interrupt_timer();
uint32_t screen_update(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect);
inline void shift_star_generator();
void get_starfield_pens(pen_t *pens);
void draw_starfield(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect);
void get_sprite_pens(pen_t *pens);
void draw_bullet(offs_t offs, pen_t pen, bitmap_rgb32 &bitmap, const rectangle &cliprect, int flip);
void draw_sprite(offs_t offs, pen_t *pens, bitmap_rgb32 &bitmap, const rectangle &cliprect, int flip);
void draw_objects(bitmap_rgb32 &bitmap, const rectangle &cliprect);
};
#endif // MAME_INCLUDES_SPACEFB
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