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1.1.1.2 root 1: /*
1.1 root 2: * UAE - The Un*x Amiga Emulator
1.1.1.2 root 3: *
4: * SDL Joystick code
5: *
1.1 root 6: * Copyright 1997 Bernd Schmidt
7: * Copyright 1998 Krister Walfridsson
1.1.1.3 ! root 8: * Copyright 2003-2005 Richard Drummond
1.1 root 9: */
10:
11: #include "sysconfig.h"
12: #include "sysdeps.h"
13:
14: #include "options.h"
1.1.1.2 root 15: #include "inputdevice.h"
16: #include <SDL.h>
17:
1.1.1.3 ! root 18: static unsigned int nr_joysticks;
1.1.1.2 root 19: static int initialized;
20:
21: struct joyinfo {
22: SDL_Joystick *joy;
1.1.1.3 ! root 23: unsigned int axles;
! 24: unsigned int buttons;
1.1.1.2 root 25: };
26:
27: static struct joyinfo joys[MAX_INPUT_DEVICES];
28:
29:
1.1.1.3 ! root 30: static void read_joy (unsigned int nr)
1.1.1.2 root 31: {
1.1.1.3 ! root 32: unsigned int num, i, axes, axis;
1.1.1.2 root 33: SDL_Joystick *joy;
34:
35: if (currprefs.input_selected_setting == 0) {
1.1.1.3 ! root 36: if (jsem_isjoy (0, &currprefs) != (int)nr && jsem_isjoy (1, &currprefs) != (int)nr)
1.1.1.2 root 37: return;
38: }
39: joy = joys[nr].joy;
40: axes = SDL_JoystickNumAxes (joy);
41: for (i = 0; i < axes; i++) {
42: axis = SDL_JoystickGetAxis (joy, i);
43: setjoystickstate (nr, i, axis, 32767);
44: }
45:
1.1 root 46: num = SDL_JoystickNumButtons (joy);
1.1.1.2 root 47: for (i = 0; i < num; i++) {
48: int bs = SDL_JoystickGetButton (joy, i) ? 1 : 0;
49: setjoybuttonstate (nr, i, bs);
50: }
51: }
52:
1.1.1.3 ! root 53: static unsigned int get_joystick_num (void)
1.1.1.2 root 54: {
55: return nr_joysticks;
56: }
57:
1.1.1.3 ! root 58: static unsigned int get_joystick_widget_num (unsigned int joy)
1.1.1.2 root 59: {
60: return joys[joy].axles + joys[joy].buttons;
61: }
62:
1.1.1.3 ! root 63: static int get_joystick_widget_type (unsigned int joy, unsigned int num, char *name, uae_u32 *code)
1.1.1.2 root 64: {
65: if (num >= joys[joy].axles && num < joys[joy].axles + joys[joy].buttons) {
66: if (name)
67: sprintf (name, "Button %d", num + 1 - joys[joy].axles);
68: return IDEV_WIDGET_BUTTON;
69: } else if (num < joys[joy].axles) {
70: if (name)
71: sprintf (name, "Axis %d", num + 1);
72: return IDEV_WIDGET_AXIS;
73: }
74: return IDEV_WIDGET_NONE;
75: }
76:
1.1.1.3 ! root 77: static int get_joystick_widget_first (unsigned int joy, int type)
1.1.1.2 root 78: {
79: switch (type) {
80: case IDEV_WIDGET_BUTTON:
81: return joys[joy].axles;
82: case IDEV_WIDGET_AXIS:
83: return 0;
84: }
85: return -1;
1.1 root 86: }
87:
1.1.1.3 ! root 88: static const char *get_joystick_name (unsigned int joy)
1.1.1.2 root 89: {
1.1.1.3 ! root 90: return SDL_JoystickName (joy);
1.1.1.2 root 91: }
92:
93: static void read_joysticks (void)
94: {
95: if (get_joystick_num ()) {
1.1.1.3 ! root 96: unsigned int i;
1.1.1.2 root 97: SDL_JoystickUpdate ();
98: for (i = 0; i < get_joystick_num (); i++)
99: read_joy (i);
100: }
101: }
102:
103: static int init_joysticks (void)
104: {
105: int success = 0;
106:
107: if (!initialized) {
108: if (SDL_InitSubSystem (SDL_INIT_JOYSTICK) == 0) {
1.1.1.3 ! root 109: unsigned int i;
1.1.1.2 root 110:
111: nr_joysticks = SDL_NumJoysticks ();
112: write_log ("Found %d joystick(s)\n", nr_joysticks);
113:
114: if (nr_joysticks > MAX_INPUT_DEVICES)
115: nr_joysticks = MAX_INPUT_DEVICES;
116:
117: for (i = 0; i < get_joystick_num (); i++) {
118: joys[i].joy = SDL_JoystickOpen (i);
119: joys[i].axles = SDL_JoystickNumAxes (joys[i].joy);
120: joys[i].buttons = SDL_JoystickNumButtons (joys[i].joy);
121: }
122: success = initialized = 1;
123: } else
124: write_log ("Failed to initialize joysticks\n");
125: }
126:
127: return success;
128: }
129:
130: static void close_joysticks (void)
1.1 root 131: {
1.1.1.3 ! root 132: unsigned int i;
! 133: for (i = 0; i < nr_joysticks; i++) {
1.1.1.2 root 134: SDL_JoystickClose (joys[i].joy);
135: joys[i].joy = 0;
136: }
1.1.1.3 ! root 137: nr_joysticks = 0;
1.1.1.2 root 138:
1.1.1.3 ! root 139: if (initialized) {
1.1.1.2 root 140: SDL_QuitSubSystem (SDL_INIT_JOYSTICK);
1.1.1.3 ! root 141: initialized = 0;
! 142: }
1.1.1.2 root 143: }
144:
1.1.1.3 ! root 145: static int acquire_joy (unsigned int num, int flags)
1.1.1.2 root 146: {
147: return num < get_joystick_num ();
148: }
149:
1.1.1.3 ! root 150: static void unacquire_joy (unsigned int num)
1.1.1.2 root 151: {
152: }
153:
154: struct inputdevice_functions inputdevicefunc_joystick = {
1.1.1.3 ! root 155: init_joysticks,
! 156: close_joysticks,
! 157: acquire_joy,
! 158: unacquire_joy,
! 159: read_joysticks,
! 160: get_joystick_num,
! 161: get_joystick_name,
! 162: get_joystick_widget_num,
! 163: get_joystick_widget_type,
1.1.1.2 root 164: get_joystick_widget_first
165: };
166:
167: /*
168: * Set default inputdevice config for SDL joysticks
169: */
170: void input_get_default_joystick (struct uae_input_device *uid)
171: {
1.1.1.3 ! root 172: unsigned int i, port;
1.1.1.2 root 173:
174: for (i = 0; i < nr_joysticks; i++) {
175: port = i & 1;
176: uid[i].eventid[ID_AXIS_OFFSET + 0][0] = port ? INPUTEVENT_JOY2_HORIZ : INPUTEVENT_JOY1_HORIZ;
177: uid[i].eventid[ID_AXIS_OFFSET + 1][0] = port ? INPUTEVENT_JOY2_VERT : INPUTEVENT_JOY1_VERT;
178: uid[i].eventid[ID_BUTTON_OFFSET + 0][0] = port ? INPUTEVENT_JOY2_FIRE_BUTTON : INPUTEVENT_JOY1_FIRE_BUTTON;
179: uid[i].eventid[ID_BUTTON_OFFSET + 1][0] = port ? INPUTEVENT_JOY2_2ND_BUTTON : INPUTEVENT_JOY1_2ND_BUTTON;
1.1.1.3 ! root 180: uid[i].eventid[ID_BUTTON_OFFSET + 2][0] = port ? INPUTEVENT_JOY2_FIRE_BUTTON_AF : INPUTEVENT_JOY1_FIRE_BUTTON_AF;
1.1.1.2 root 181: }
182: uid[0].enabled = 1;
1.1 root 183: }
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