1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
|
// license:BSD-3-Clause
// copyright-holders:Fabio Priuli,Acho A. Tang, R. Belmont
#ifndef MAME_VIDEO_K051960_H
#define MAME_VIDEO_K051960_H
#pragma once
#include "screen.h"
enum
{
K051960_PLANEORDER_BASE = 0,
K051960_PLANEORDER_MIA,
K051960_PLANEORDER_GRADIUS3
};
typedef device_delegate<void (int *code, int *color, int *priority, int *shadow)> k051960_cb_delegate;
#define K051960_CB_MEMBER(_name) void _name(int *code, int *color, int *priority, int *shadow)
#define MCFG_K051960_CB(_class, _method) \
downcast<k051960_device &>(*device).set_k051960_callback(k051960_cb_delegate(&_class::_method, #_class "::" #_method, this));
#define MCFG_K051960_PLANEORDER(_order) \
downcast<k051960_device &>(*device).set_plane_order(_order);
#define MCFG_K051960_SCREEN_TAG(_tag) \
downcast<k051960_device &>(*device).set_screen_tag(_tag);
#define MCFG_K051960_IRQ_HANDLER(_devcb) \
devcb = &downcast<k051960_device &>(*device).set_irq_handler(DEVCB_##_devcb);
#define MCFG_K051960_NMI_HANDLER(_devcb) \
devcb = &downcast<k051960_device &>(*device).set_nmi_handler(DEVCB_##_devcb);
#define MCFG_K051960_VREG_CONTRAST_HANDLER(_devcb) \
devcb = &downcast<k051960_device &>(*device).set_vreg_contrast_handler(DEVCB_##_devcb);
class k051960_device : public device_t, public device_gfx_interface
{
static const gfx_layout spritelayout;
static const gfx_layout spritelayout_reverse;
static const gfx_layout spritelayout_gradius3;
DECLARE_GFXDECODE_MEMBER(gfxinfo);
DECLARE_GFXDECODE_MEMBER(gfxinfo_reverse);
DECLARE_GFXDECODE_MEMBER(gfxinfo_gradius3);
public:
k051960_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
template <class Object> devcb_base &set_irq_handler(Object &&cb)
{ return m_irq_handler.set_callback(std::forward<Object>(cb)); }
template <class Object> devcb_base &set_nmi_handler(Object &&cb)
{ return m_nmi_handler.set_callback(std::forward<Object>(cb)); }
template <class Object> devcb_base &set_vreg_contrast_handler(Object &&cb)
{ return m_vreg_contrast_handler.set_callback(std::forward<Object>(cb)); }
// static configuration
void set_k051960_callback(k051960_cb_delegate callback) { m_k051960_cb = callback; }
void set_plane_order(int order);
void set_screen_tag(const char *tag) { m_screen.set_tag(tag); }
/*
The callback is passed:
- code (range 00-1FFF, output of the pins CA5-CA17)
- color (range 00-FF, output of the pins OC0-OC7). Note that most of the
time COL7 seems to be "shadow", but not always (e.g. Aliens).
The callback must put:
- in code the resulting sprite number
- in color the resulting color index
- if necessary, in priority the priority of the sprite wrt tilemaps
- if necessary, alter shadow to indicate whether the sprite has shadows enabled.
shadow is preloaded with color & 0x80 so it doesn't need to be changed unless
the game has special treatment (Aliens)
*/
DECLARE_READ8_MEMBER( k051960_r );
DECLARE_WRITE8_MEMBER( k051960_w );
DECLARE_READ8_MEMBER( k051937_r );
DECLARE_WRITE8_MEMBER( k051937_w );
void k051960_sprites_draw(bitmap_ind16 &bitmap, const rectangle &cliprect, bitmap_ind8 &priority_bitmap, int min_priority, int max_priority);
TIMER_CALLBACK_MEMBER(scanline_callback);
protected:
// device-level overrides
virtual void device_start() override;
virtual void device_reset() override;
private:
// internal state
std::unique_ptr<uint8_t[]> m_ram;
required_region_ptr<uint8_t> m_sprite_rom;
required_device<screen_device> m_screen;
emu_timer *m_scanline_timer;
k051960_cb_delegate m_k051960_cb;
devcb_write_line m_irq_handler;
// TODO: is this even used by anything?
devcb_write_line m_firq_handler;
devcb_write_line m_nmi_handler;
devcb_write_line m_vreg_contrast_handler;
uint8_t m_spriterombank[3];
int m_romoffset;
int m_spriteflip, m_readroms;
int m_nmi_enabled;
int k051960_fetchromdata( int byte );
};
DECLARE_DEVICE_TYPE(K051960, k051960_device)
#endif // MAME_VIDEO_K051960_H
|