1 // license:BSD-3-Clause
2 // copyright-holders:Fabrice Frances, Nicola Salmoria, Aaron Giles
3 /***************************************************************************
4 
5     Gottlieb hardware
6 
7 ***************************************************************************/
8 
9 #include "audio/gottlieb.h"
10 #include "cpu/i86/i86.h"
11 #include "cpu/m6502/m6502.h"
12 #include "sound/samples.h"
13 #include "machine/ldpr8210.h"
14 #include "emupal.h"
15 #include "screen.h"
16 #include "tilemap.h"
17 
18 
19 #define GOTTLIEB_VIDEO_HCOUNT   318
20 #define GOTTLIEB_VIDEO_HBLANK   256
21 #define GOTTLIEB_VIDEO_VCOUNT   256
22 #define GOTTLIEB_VIDEO_VBLANK   240
23 
24 
25 
26 
27 // ======================> gottlieb_state
28 
29 // shared driver state
30 class gottlieb_state : public driver_device
31 {
32 public:
gottlieb_state(const machine_config & mconfig,device_type type,const char * tag)33 	gottlieb_state(const machine_config &mconfig, device_type type, const char *tag)
34 		: driver_device(mconfig, type, tag)
35 		, m_maincpu(*this, "maincpu")
36 		, m_laserdisc(*this, "laserdisc")
37 		, m_r1_sound(*this, "r1sound")
38 		, m_r2_sound(*this, "r2sound")
39 		, m_knocker_sample(*this, "knocker_sam")
40 		, m_videoram(*this, "videoram")
41 		, m_charram(*this, "charram")
42 		, m_spriteram(*this, "spriteram")
43 		, m_gfxdecode(*this, "gfxdecode")
44 		, m_screen(*this, "screen")
45 		, m_palette(*this, "palette")
46 		, m_paletteram(*this, "paletteram")
47 		, m_track_x(*this, "TRACKX")
48 		, m_track_y(*this, "TRACKY")
49 		, m_leds(*this, "led%u", 0U)
50 	{ }
51 
52 	void gottlieb_core(machine_config &config);
53 	void cobram3(machine_config &config);
54 	void screwloo(machine_config &config);
55 	void gottlieb2(machine_config &config);
56 	void reactor(machine_config &config);
57 	void tylz(machine_config &config);
58 	void g2laser(machine_config &config);
59 	void qbert(machine_config &config);
60 	void qbert_knocker(machine_config &config);
61 	void gottlieb1(machine_config &config);
62 	void gottlieb1_votrax(machine_config &config);
63 
64 	void init_romtiles();
65 	void init_screwloo();
66 	void init_vidvince();
67 	void init_ramtiles();
68 	void init_stooges();
69 	void init_qbert();
70 	void init_qbertqub();
71 
72 	template <int N> DECLARE_CUSTOM_INPUT_MEMBER(track_delta_r);
73 	DECLARE_CUSTOM_INPUT_MEMBER(stooges_joystick_r);
74 
75 private:
76 	enum
77 	{
78 		TIMER_LASERDISC_PHILIPS,
79 		TIMER_LASERDISC_BIT_OFF,
80 		TIMER_LASERDISC_BIT,
81 		TIMER_NMI_CLEAR
82 	};
83 
84 	void qbert_knocker(u8 knock);
85 
86 	void analog_reset_w(u8 data);
87 	void general_output_w(u8 data);
88 	void reactor_output_w(u8 data);
89 	void stooges_output_w(u8 data);
90 	void qbertqub_output_w(u8 data);
91 	void qbert_output_w(u8 data);
92 	u8 laserdisc_status_r(offs_t offset);
93 	void laserdisc_select_w(u8 data);
94 	void laserdisc_command_w(u8 data);
95 	void sound_w(u8 data);
96 	void palette_w(offs_t offset, u8 data);
97 	void video_control_w(u8 data);
98 	void laserdisc_video_control_w(u8 data);
99 	void videoram_w(offs_t offset, u8 data);
100 	void charram_w(offs_t offset, u8 data);
101 	TILE_GET_INFO_MEMBER(get_bg_tile_info);
102 	TILE_GET_INFO_MEMBER(get_screwloo_bg_tile_info);
103 	DECLARE_VIDEO_START(screwloo);
104 	uint32_t screen_update(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect);
105 	INTERRUPT_GEN_MEMBER(interrupt);
106 	TIMER_CALLBACK_MEMBER(laserdisc_philips_callback);
107 	TIMER_CALLBACK_MEMBER(laserdisc_bit_off_callback);
108 	TIMER_CALLBACK_MEMBER(laserdisc_bit_callback);
109 	TIMER_CALLBACK_MEMBER(nmi_clear);
110 	void draw_sprites(bitmap_rgb32 &bitmap, const rectangle &cliprect);
111 	inline void audio_end_state();
112 	void audio_process_clock(bool logit);
113 	void audio_handle_zero_crossing(const attotime &zerotime, bool logit);
114 	void laserdisc_audio_process(int samplerate, int samples, const int16_t *ch0, const int16_t *ch1);
115 
116 	void gottlieb_map(address_map &map);
117 	void reactor_map(address_map &map);
118 
119 	virtual void machine_start() override;
120 	virtual void machine_reset() override;
121 	virtual void video_start() override;
122 	virtual void device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr) override;
123 
124 	// devices
125 	required_device<cpu_device> m_maincpu;
126 	optional_device<pioneer_pr8210_device> m_laserdisc;
127 	optional_device<gottlieb_sound_r1_device> m_r1_sound;
128 	optional_device<gottlieb_sound_r2_device> m_r2_sound;
129 	optional_device<samples_device> m_knocker_sample;
130 
131 	required_shared_ptr<u8> m_videoram;
132 	required_shared_ptr<u8> m_charram;
133 	required_shared_ptr<u8> m_spriteram;
134 
135 	required_device<gfxdecode_device> m_gfxdecode;
136 	required_device<screen_device> m_screen;
137 	required_device<palette_device> m_palette;
138 	required_shared_ptr<u8> m_paletteram;
139 
140 	optional_ioport m_track_x;
141 	optional_ioport m_track_y;
142 	output_finder<3> m_leds;  // only used by reactor
143 
144 	u8 m_knocker_prev;
145 	u8 m_joystick_select;
146 	u8 m_track[2];
147 	emu_timer *m_laserdisc_bit_timer;
148 	emu_timer *m_laserdisc_philips_timer;
149 	u8 m_laserdisc_select;
150 	u8 m_laserdisc_status;
151 	uint16_t m_laserdisc_philips_code;
152 	std::unique_ptr<u8[]> m_laserdisc_audio_buffer;
153 	uint16_t m_laserdisc_audio_address;
154 	int16_t m_laserdisc_last_samples[2];
155 	attotime m_laserdisc_last_time;
156 	attotime m_laserdisc_last_clock;
157 	u8 m_laserdisc_zero_seen;
158 	u8 m_laserdisc_audio_bits;
159 	u8 m_laserdisc_audio_bit_count;
160 	u8 m_gfxcharlo;
161 	u8 m_gfxcharhi;
162 	u8 m_background_priority;
163 	u8 m_spritebank;
164 	u8 m_transparent0;
165 	tilemap_t *m_bg_tilemap;
166 	double m_weights[4];
167 };
168