forked from r-type/px68k-libretro
-
Notifications
You must be signed in to change notification settings - Fork 40
/
joystick.c
237 lines (206 loc) · 6.73 KB
/
joystick.c
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
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
/* JOYSTICK.C - joystick support for WinX68k */
#include "common.h"
#include "prop.h"
#include "joystick.h"
#include "winui.h"
#include "keyboard.h"
#include "libretro.h"
extern retro_input_state_t input_state_cb;
extern uint32_t libretro_supports_input_bitmasks;
uint8_t joy[2];
uint8_t JoyKeyState;
static uint8_t JoyKeyState0;
static uint8_t JoyKeyState1;
static uint8_t JoyState0[2];
static uint8_t JoyState1[2];
static uint8_t JoyPortData[2];
/* This stores whether the buttons were down. This avoids key repeats. */
static uint8_t JoyDownState0;
void Joystick_Init(void)
{
joy[0] = 1; /* activate JOY1 */
joy[1] = 1; /* activate JOY2 */
JoyKeyState = 0;
JoyKeyState0 = 0;
JoyKeyState1 = 0;
JoyState0[0] = 0xff;
JoyState0[1] = 0xff;
JoyState1[0] = 0xff;
JoyState1[1] = 0xff;
JoyPortData[0] = 0;
JoyPortData[1] = 0;
}
void Joystick_Cleanup(void)
{
}
uint8_t FASTCALL Joystick_Read(uint8_t num)
{
uint8_t ret0 = 0xff, ret1 = 0xff;
if (joy[num])
{
ret0 = JoyState0[num];
ret1 = JoyState1[num];
}
return ((~JoyPortData[num]) & ret0) | (JoyPortData[num] & ret1);
}
void FASTCALL Joystick_Write(uint8_t num, uint8_t data)
{
if ((num == 0)||(num == 1))
JoyPortData[num] = data;
}
/* Menu navigation related vars */
#define RATE 3 /* repeat rate */
#define JOYDELAY 30 /* delay before 1st repeat */
static uint32_t get_px68k_input_bitmasks(int port)
{
return input_state_cb(port, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_MASK);
}
static uint16_t get_px68k_input(int port)
{
uint32_t i = 0;
uint32_t res = 0;
for (i = 0; i < (RETRO_DEVICE_ID_JOYPAD_R + 1); i++)
res |= input_state_cb(port, RETRO_DEVICE_JOYPAD, 0, i) ? (1 << i) : 0;
return res;
}
#define PAD_2BUTTON 0
#define PAD_CPSF_MD 1
#define PAD_CPSF_SFC 2
void FASTCALL Joystick_Update(int is_menu, int key, int port)
{
uint8_t ret0 = 0xff, ret1 = 0xff;
uint8_t temp = 0;
static uint8_t pre_ret0 = 0xff;
uint32_t res = 0;
if (libretro_supports_input_bitmasks)
res = get_px68k_input_bitmasks(port);
else
res = get_px68k_input(port);
/* D-Pad */
if (res & (1 << RETRO_DEVICE_ID_JOYPAD_RIGHT))
temp |= JOY_RIGHT;
if (res & (1 << RETRO_DEVICE_ID_JOYPAD_LEFT))
temp |= JOY_LEFT;
if (res & (1 << RETRO_DEVICE_ID_JOYPAD_UP))
temp |= JOY_UP;
if (res & (1 << RETRO_DEVICE_ID_JOYPAD_DOWN))
temp |= JOY_DOWN;
if ((temp & (JOY_LEFT | JOY_RIGHT)) == (JOY_LEFT | JOY_RIGHT))
temp &= ~(JOY_LEFT | JOY_RIGHT);
if ((temp & (JOY_UP | JOY_DOWN)) == (JOY_UP | JOY_DOWN))
temp &= ~(JOY_UP | JOY_DOWN);
ret0 ^= temp;
/* Buttons */
switch (Config.JOY_TYPE[port])
{
case PAD_2BUTTON:
if (res & (1 << RETRO_DEVICE_ID_JOYPAD_A))
ret0 ^= (Config.VbtnSwap ? JOY_TRG1 : JOY_TRG2);
if (res & (1 << RETRO_DEVICE_ID_JOYPAD_B))
ret0 ^= (Config.VbtnSwap ? JOY_TRG2 : JOY_TRG1);
if (res & (1 << RETRO_DEVICE_ID_JOYPAD_X))
ret0 ^= (Config.VbtnSwap ? JOY_TRG2 : JOY_TRG1);
if (res & (1 << RETRO_DEVICE_ID_JOYPAD_Y))
ret0 ^= (Config.VbtnSwap ? JOY_TRG1 : JOY_TRG2);
if (res & (1 << RETRO_DEVICE_ID_JOYPAD_START))
ret0 &= ~(JOY_UP | JOY_DOWN);
if (!Config.joy1_select_mapping)
if (res & (1 << RETRO_DEVICE_ID_JOYPAD_SELECT))
ret0 &= ~(JOY_LEFT | JOY_RIGHT);
break;
case PAD_CPSF_MD:
if (res & (1 << RETRO_DEVICE_ID_JOYPAD_A))
ret0 ^= JOY_TRG1; /* Low-Kick */
if (res & (1 << RETRO_DEVICE_ID_JOYPAD_B))
ret0 ^= JOY_TRG2; /* Mid-Kick */
if (res & (1 << RETRO_DEVICE_ID_JOYPAD_X))
ret1 ^= JOY_TRG4; /* Low-Punch */
if (res & (1 << RETRO_DEVICE_ID_JOYPAD_Y))
ret1 ^= JOY_TRG3; /* Mid-Punch */
if (res & (1 << RETRO_DEVICE_ID_JOYPAD_L))
ret1 ^= JOY_TRG5; /* High-Punch */
if (res & (1 << RETRO_DEVICE_ID_JOYPAD_R))
ret1 ^= JOY_TRG8; /* High-Kick */
if (res & (1 << RETRO_DEVICE_ID_JOYPAD_START))
ret1 ^= JOY_TRG6; /* Start */
if (!Config.joy1_select_mapping)
if (res & (1 << RETRO_DEVICE_ID_JOYPAD_SELECT))
ret1 ^= JOY_TRG7; /* Mode */
break;
case PAD_CPSF_SFC:
if (res & (1 << RETRO_DEVICE_ID_JOYPAD_A))
ret0 ^= JOY_TRG2;
if (res & (1 << RETRO_DEVICE_ID_JOYPAD_B))
ret0 ^= JOY_TRG1;
if (res & (1 << RETRO_DEVICE_ID_JOYPAD_X))
ret1 ^= JOY_TRG3;
if (res & (1 << RETRO_DEVICE_ID_JOYPAD_Y))
ret1 ^= JOY_TRG4;
if (res & (1 << RETRO_DEVICE_ID_JOYPAD_L))
ret1 ^= JOY_TRG8;
if (res & (1 << RETRO_DEVICE_ID_JOYPAD_R))
ret1 ^= JOY_TRG5;
if (res & (1 << RETRO_DEVICE_ID_JOYPAD_START))
ret1 ^= JOY_TRG6;
if (!Config.joy1_select_mapping)
if (res & (1 << RETRO_DEVICE_ID_JOYPAD_SELECT))
ret1 ^= JOY_TRG7;
break;
}
JoyDownState0 = ~(ret0 ^ pre_ret0) | ret0;
pre_ret0 = ret0;
/* input overrides section during Menu mode for faster menu browsing
* by pressing and holding key or button aka turbo mode */
if (is_menu)
{
int i;
static int repeat_rate, repeat_delay;
static uint8_t last_inbuf;
uint8_t joy_in = (ret0 ^ 0xff);
uint8_t inbuf = (joy_in | key);
if ((inbuf & (JOY_LEFT | JOY_RIGHT)) == (JOY_LEFT | JOY_RIGHT))
inbuf &= ~(JOY_LEFT | JOY_RIGHT);
if ((inbuf & (JOY_UP | JOY_DOWN)) == (JOY_UP | JOY_DOWN))
inbuf &= ~(JOY_UP | JOY_DOWN);
for (i = 0; i < 4; i++)
speedup_joy[1 << i] = 0;
if (last_inbuf != inbuf)
{
last_inbuf = inbuf;
repeat_delay = JOYDELAY;
repeat_rate = 0;
JoyDownState0 = (inbuf ^ 0xff);
}
else
{
if (repeat_delay)
repeat_delay--;
if (repeat_delay == 0)
{
if (repeat_rate)
repeat_rate--;
if (repeat_rate == 0)
{
repeat_rate = RATE;
for (i = 0; i < 4; i++)
{
uint8_t tmp = (1 << i); /* which direction? UP/DOWN/LEFT/RIGHT */
if ((inbuf & tmp) == tmp)
speedup_joy[tmp] = 1;
}
}
}
}
}
else
{
/* disable Joystick when software keyboard is active */
if (!Keyboard_IsSwKeyboard())
{
JoyState0[port] = ret0;
JoyState1[port] = ret1;
}
}
}
uint8_t get_joy_downstate(void) { return JoyDownState0; }
void reset_joy_downstate(void) { JoyDownState0 = 0xff; }