1 // license:BSD-3-Clause
2 // copyright-holders:Mirko Buffoni
3 #ifndef MAME_INCLUDES_TUTANKHM_H
4 #define MAME_INCLUDES_TUTANKHM_H
5 
6 #pragma once
7 
8 #include "audio/timeplt.h"
9 #include "emupal.h"
10 #include "machine/timer.h"
11 #include "screen.h"
12 
13 static constexpr int GALAXIAN_XSCALE = 3;
14 static constexpr XTAL GALAXIAN_MASTER_CLOCK(18.432_MHz_XTAL);
15 static constexpr XTAL GALAXIAN_PIXEL_CLOCK(GALAXIAN_XSCALE*GALAXIAN_MASTER_CLOCK / 3);
16 static constexpr int GALAXIAN_HTOTAL  = (384 * GALAXIAN_XSCALE);
17 static constexpr int GALAXIAN_HBEND   = (0 * GALAXIAN_XSCALE);
18 //static constexpr int GALAXIAN_H0START = (6*GALAXIAN_XSCALE)
19 //static constexpr int GALAXIAN_HBSTART = (264*GALAXIAN_XSCALE)
20 static constexpr int GALAXIAN_H0START = (0 * GALAXIAN_XSCALE);
21 static constexpr int GALAXIAN_HBSTART = (256 * GALAXIAN_XSCALE);
22 
23 static constexpr int GALAXIAN_VTOTAL  = (264);
24 static constexpr int GALAXIAN_VBEND   = (16);
25 static constexpr int GALAXIAN_VBSTART = (224 + 16);
26 
27 class tutankhm_state : public driver_device
28 {
29 public:
tutankhm_state(const machine_config & mconfig,device_type type,const char * tag)30 	tutankhm_state(const machine_config &mconfig, device_type type, const char *tag) :
31 		driver_device(mconfig, type, tag),
32 		m_videoram(*this, "videoram"),
33 		m_scroll(*this, "scroll"),
34 		m_maincpu(*this, "maincpu"),
35 		m_palette(*this, "palette"),
36 		m_screen(*this, "screen"),
37 		m_timeplt_audio(*this, "timeplt_audio"),
38 		m_stars_config(*this, "STARS")
39 	{
40 	}
41 
42 	void tutankhm(machine_config &config);
43 
44 protected:
45 	DECLARE_WRITE_LINE_MEMBER(irq_enable_w);
46 	void tutankhm_bankselect_w(uint8_t data);
47 	DECLARE_WRITE_LINE_MEMBER(coin_counter_1_w);
48 	DECLARE_WRITE_LINE_MEMBER(coin_counter_2_w);
49 	void sound_on_w(uint8_t data);
50 	DECLARE_WRITE_LINE_MEMBER(flip_screen_x_w);
51 	DECLARE_WRITE_LINE_MEMBER(flip_screen_y_w);
52 	virtual void machine_start() override;
53 	virtual void machine_reset() override;
54 	uint32_t screen_update_tutankhm_bootleg(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect);
55 	uint32_t screen_update_tutankhm_scramble(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect);
56 	uint32_t screen_update_tutankhm(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect);
57 	DECLARE_WRITE_LINE_MEMBER(vblank_irq);
58 	void main_map(address_map &map);
59 	virtual void video_start() override;
60 	void galaxian_palette(palette_device &palette);
61 	static rgb_t raw_to_rgb_func(u32 raw);
62 
63 	/* memory pointers */
64 	required_shared_ptr<uint8_t> m_videoram;
65 	optional_shared_ptr<uint8_t> m_scroll;
66 
67 	/* video-related */
68 	tilemap_t  *m_bg_tilemap;
69 	uint8_t     m_flipscreen_x;
70 	uint8_t     m_flipscreen_y;
71 
72 	/* misc */
73 	uint8_t    m_irq_toggle;
74 	uint8_t    m_irq_enable;
75 
76 	/* devices */
77 	required_device<cpu_device> m_maincpu;
78 	required_device<palette_device> m_palette;
79 	required_device<screen_device> m_screen;
80 	optional_device<timeplt_audio_device> m_timeplt_audio;
81 	optional_ioport m_stars_config;
82 
83 	TIMER_DEVICE_CALLBACK_MEMBER(scramble_stars_blink_timer);
84 	void galaxian_stars_enable_w(uint8_t data);
85 	void stars_init();
86 	void stars_init_scramble();
87 	void stars_init_bootleg();
88 	void stars_draw_row(bitmap_rgb32 &bitmap, int maxx, int y, uint32_t star_offs);
89 	void scramble_draw_stars(bitmap_rgb32 &bitmap, const rectangle &cliprect, int maxx);
90 	void scramble_draw_background(bitmap_rgb32 &bitmap, const rectangle &cliprect);
91 
92 	uint8_t m_star_mode;
93 	rgb_t m_star_color[64];
94 	std::unique_ptr<uint8_t[]> m_stars;
95 	uint8_t m_stars_enabled;
96 	uint8_t m_stars_blink_state;
97 };
98 
99 #endif // MAME_INCLUDES_TUTANKHM_H
100