c62d2810 |
1 | /* FCE Ultra - NES/Famicom Emulator |
2 | * |
3 | * Copyright notice for this file: |
4 | * Copyright (C) 2002 Ben Parnell |
5 | * Copyright (C) 2002 Paul Kuliniewicz |
6 | * |
7 | * This program is free software; you can redistribute it and/or modify |
8 | * it under the terms of the GNU General Public License as published by |
9 | * the Free Software Foundation; either version 2 of the License, or |
10 | * (at your option) any later version. |
11 | * |
12 | * This program is distributed in the hope that it will be useful, |
13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
15 | * GNU General Public License for more details. |
16 | * |
17 | * You should have received a copy of the GNU General Public License |
18 | * along with this program; if not, write to the Free Software |
19 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
20 | */ |
21 | |
22 | /* PK: SDL joystick input stuff */ |
23 | |
24 | #include <stdlib.h> |
25 | #include <unistd.h> |
26 | #include <fcntl.h> |
27 | #include <errno.h> |
28 | |
29 | #include "sdl.h" |
5232c20c |
30 | #ifndef GP2X |
c62d2810 |
31 | static SDL_Joystick *jo[4] = {NULL, NULL, NULL, NULL}; |
c62d2810 |
32 | static void ConfigJoystick (int z); |
33 | |
34 | #define JOY_A 0x01 |
35 | #define JOY_B 0x02 |
36 | #define JOY_SELECT 0x04 |
37 | #define JOY_START 0x08 |
38 | #define JOY_UP 0x10 |
39 | #define JOY_DOWN 0x20 |
40 | #define JOY_LEFT 0x40 |
41 | #define JOY_RIGHT 0x80 |
5232c20c |
42 | #endif |
c62d2810 |
43 | |
44 | /* Gets the current joystick position information. */ |
45 | uint32 GetJSOr (void) |
46 | { |
5232c20c |
47 | #ifndef GP2X |
c62d2810 |
48 | int n; /* joystick index */ |
49 | int b; /* button index */ |
50 | int *joym; /* pointer to a joystick's button map */ |
51 | Sint16 pos; /* axis position */ |
52 | uint32 ret = 0; /* return value */ |
53 | |
54 | for (n = 0; n < 4; n++) |
55 | { |
56 | if (joy[n] == 0) |
57 | continue; |
58 | joym = joyBMap[n]; |
59 | |
60 | /* Axis information. */ |
61 | pos = SDL_JoystickGetAxis(jo[n], joyAMap[n][0]); |
62 | if (pos <= -16383) |
63 | ret |= JOY_LEFT << (n << 3); |
64 | else if (pos >= 16363) |
65 | ret |= JOY_RIGHT << (n << 3); |
66 | pos = SDL_JoystickGetAxis(jo[n], joyAMap[n][1]); |
67 | if (pos <= -16383) |
68 | ret |= JOY_UP << (n << 3); |
69 | else if (pos >= 16383) |
70 | ret |= JOY_DOWN << (n << 3); |
71 | |
72 | /* Button information. */ |
73 | for (b = 0; b < 4; b++) |
74 | { |
75 | if (SDL_JoystickGetButton(jo[n], joym[b])) |
76 | ret |= (1 << b) << (n << 3); |
77 | } |
78 | } |
79 | |
80 | return ret; |
5232c20c |
81 | #else |
82 | return 0; |
83 | #endif |
c62d2810 |
84 | } |
85 | |
86 | /* Cleanup opened joysticks. */ |
87 | void KillJoysticks (void) |
88 | { |
5232c20c |
89 | #ifndef GP2X |
c62d2810 |
90 | int n; /* joystick index */ |
91 | |
92 | for (n = 0; n < 4; n++) |
93 | { |
94 | if (joy[n] != 0) |
95 | SDL_JoystickClose(jo[n]); |
96 | } |
97 | SDL_QuitSubSystem(SDL_INIT_JOYSTICK); |
98 | return; |
5232c20c |
99 | #endif |
c62d2810 |
100 | } |
101 | |
102 | /* Initialize joysticks. */ |
103 | int InitJoysticks (void) |
104 | { |
5232c20c |
105 | #ifndef GP2X |
c62d2810 |
106 | int n; /* joystick index */ |
107 | if(!(joy[0]|joy[1]|joy[2]|joy[3])) |
108 | return(0); |
109 | SDL_InitSubSystem(SDL_INIT_JOYSTICK); |
110 | for (n = 0; n < 4; n++) |
111 | { |
112 | if (joy[n] == 0) |
113 | continue; |
114 | |
115 | /* Open the joystick under SDL. */ |
116 | jo[n] = SDL_JoystickOpen(joy[n] - 1); |
117 | if (jo[n] == NULL) |
118 | { |
119 | printf("Could not open joystick %d: %s.\n", |
120 | joy[n] - 1, SDL_GetError()); |
121 | joy[n] = 0; |
122 | continue; |
123 | } |
124 | |
125 | /* Check for a button map. */ |
126 | if (!(joyBMap[n][0] | joyBMap[n][1] | joyBMap[n][2] | |
127 | joyBMap[n][3])) |
128 | { |
129 | ConfigJoystick(n); |
130 | } |
131 | } |
132 | |
133 | return (1); |
5232c20c |
134 | #endif |
c62d2810 |
135 | } |
136 | |
137 | #define WNOINPUT(); for(;;){uint8 t; if(read(fileno(stdin),&t,1)==-1) \ |
138 | {break;}} |
139 | |
140 | /* Configure a joystick button. */ |
141 | static void BConfig (int n, int b) |
142 | { |
5232c20c |
143 | #ifndef GP2X |
c62d2810 |
144 | SDL_Event event; /* SDL event structure */ |
145 | WNOINPUT(); |
146 | while (1) |
147 | { |
148 | uint8 t; |
149 | if (read(fileno(stdin), &t, 1) == -1) |
150 | { |
151 | if (errno != EAGAIN) |
152 | break; |
153 | } |
154 | else |
155 | break; |
156 | |
157 | if (SDL_PollEvent(&event) && event.type == SDL_JOYBUTTONDOWN) |
158 | { |
159 | joyBMap[n][b] = event.jbutton.button; |
160 | goto endsa; |
161 | } |
162 | } |
163 | |
164 | endsa: |
165 | WNOINPUT(); |
166 | |
167 | return; |
5232c20c |
168 | #endif |
c62d2810 |
169 | } |
170 | |
171 | /* Joystick button and axis configuration. */ |
172 | void ConfigJoystick (int n) |
173 | { |
5232c20c |
174 | #ifndef GP2X |
c62d2810 |
175 | int sa; /* buffer value */ |
176 | char buf[128]; /* input buffer */ |
177 | |
178 | printf("\n\n Joystick button and axis configuration:\n\n"); |
179 | printf(" Select the joystick axes to use for the virtual d-pad.\n"); |
180 | printf(" If you do not wish to assign an axis, press Enter to skip\n"); |
181 | printf(" that axis.\n"); |
182 | printf(" Push the button to map to the virtual joystick.\n"); |
183 | printf(" If you do not wish to assign a button, press Enter to skip\n"); |
184 | printf(" that button.\n Press enter to continue...\n"); |
185 | getchar(); |
186 | printf("**** Configuring joystick %d ****\n\n", n + 1); |
187 | |
188 | printf("** Enter axis to use for the x-axis (default 0).\n"); |
189 | fgets(buf, sizeof(buf), stdin); |
190 | joyAMap[n][0] = ('0' <= buf[0] && buf[9] <= '9') ? atoi(buf) : 0; |
191 | |
192 | printf("** Enter axis to use for the y-axis (default 1).\n"); |
193 | fgets(buf, sizeof(buf), stdin); |
194 | joyAMap[n][1] = ('0' <= buf[0] && buf[9] <= '9') ? atoi(buf) : 1; |
195 | |
196 | sa = fcntl(fileno(stdin), F_GETFL); |
197 | fcntl(fileno(stdin), F_SETFL, O_NONBLOCK); |
198 | |
199 | printf("** Press button for \"Select\".\n"); |
200 | BConfig(n, 2); |
201 | |
202 | printf("** Press button for \"Start\".\n"); |
203 | BConfig(n, 3); |
204 | |
205 | printf("** Press button for \"B\".\n"); |
206 | BConfig(n, 1); |
207 | |
208 | printf("** Press button for \"A\".\n"); |
209 | BConfig(n, 0); |
210 | |
211 | fcntl(fileno(stdin), F_SETFL, sa); |
5232c20c |
212 | #endif |
c62d2810 |
213 | } |