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comparison src/joystick/dc/SDL_sysjoystick.c @ 1662:782fd950bd46 SDL-1.3

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Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. WARNING: None of the video drivers have been updated for the new API yet! The API is still under design and very fluid. The code is now run through a consistent indent format: indent -i4 -nut -nsc -br -ce The headers are being converted to automatically generate doxygen documentation.
author Sam Lantinga <slouken@libsdl.org>
date Sun, 28 May 2006 13:04:16 +0000
parents 92947e3a18db
children 4da1ee79c9af
comparison
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1661:281d3f4870e5 1662:782fd950bd46
29 #include "../SDL_joystick_c.h" 29 #include "../SDL_joystick_c.h"
30 30
31 #include <dc/maple.h> 31 #include <dc/maple.h>
32 #include <dc/maple/controller.h> 32 #include <dc/maple/controller.h>
33 33
34 #define MAX_JOYSTICKS 8 /* only 2 are supported in the multimedia API */ 34 #define MAX_JOYSTICKS 8 /* only 2 are supported in the multimedia API */
35 #define MAX_AXES 6 /* each joystick can have up to 6 axes */ 35 #define MAX_AXES 6 /* each joystick can have up to 6 axes */
36 #define MAX_BUTTONS 8 /* and 8 buttons */ 36 #define MAX_BUTTONS 8 /* and 8 buttons */
37 #define MAX_HATS 2 37 #define MAX_HATS 2
38 38
39 #define JOYNAMELEN 8 39 #define JOYNAMELEN 8
40 40
41 /* array to hold joystick ID values */ 41 /* array to hold joystick ID values */
42 static uint8 SYS_Joystick_addr[MAX_JOYSTICKS]; 42 static uint8 SYS_Joystick_addr[MAX_JOYSTICKS];
43 43
44 /* The private structure used to keep track of a joystick */ 44 /* The private structure used to keep track of a joystick */
45 struct joystick_hwdata 45 struct joystick_hwdata
46 { 46 {
47 cont_cond_t prev_cond; 47 cont_cond_t prev_cond;
48 int prev_buttons; 48 int prev_buttons;
49 }; 49 };
50 50
51 /* Function to scan the system for joysticks. 51 /* Function to scan the system for joysticks.
52 * This function should set SDL_numjoysticks to the number of available 52 * This function should set SDL_numjoysticks to the number of available
53 * joysticks. Joystick 0 should be the system default joystick. 53 * joysticks. Joystick 0 should be the system default joystick.
54 * It should return 0, or -1 on an unrecoverable fatal error. 54 * It should return 0, or -1 on an unrecoverable fatal error.
55 */ 55 */
56 int SDL_SYS_JoystickInit(void) 56 int
57 { 57 SDL_SYS_JoystickInit (void)
58 int numdevs; 58 {
59 59 int numdevs;
60 int p,u; 60
61 61 int p, u;
62 numdevs = 0; 62
63 for(p=0;p<MAPLE_PORT_COUNT;p++) { 63 numdevs = 0;
64 for(u=0;u<MAPLE_UNIT_COUNT;u++) { 64 for (p = 0; p < MAPLE_PORT_COUNT; p++) {
65 if (maple_device_func(p,u)&MAPLE_FUNC_CONTROLLER) { 65 for (u = 0; u < MAPLE_UNIT_COUNT; u++) {
66 SYS_Joystick_addr[numdevs] = maple_addr(p,u); 66 if (maple_device_func (p, u) & MAPLE_FUNC_CONTROLLER) {
67 numdevs++; 67 SYS_Joystick_addr[numdevs] = maple_addr (p, u);
68 } 68 numdevs++;
69 } 69 }
70 } 70 }
71 71 }
72 return(numdevs); 72
73 return (numdevs);
73 } 74 }
74 75
75 /* Function to get the device-dependent name of a joystick */ 76 /* Function to get the device-dependent name of a joystick */
76 const char *SDL_SYS_JoystickName(int index) 77 const char *
77 { 78 SDL_SYS_JoystickName (int index)
78 maple_device_t *dev; 79 {
79 if (maple_compat_resolve(SYS_Joystick_addr[index],&dev,MAPLE_FUNC_CONTROLLER)!=0) return NULL; 80 maple_device_t *dev;
80 return dev->info.product_name; 81 if (maple_compat_resolve
82 (SYS_Joystick_addr[index], &dev, MAPLE_FUNC_CONTROLLER) != 0)
83 return NULL;
84 return dev->info.product_name;
81 } 85 }
82 86
83 /* Function to open a joystick for use. 87 /* Function to open a joystick for use.
84 The joystick to open is specified by the index field of the joystick. 88 The joystick to open is specified by the index field of the joystick.
85 This should fill the nbuttons and naxes fields of the joystick structure. 89 This should fill the nbuttons and naxes fields of the joystick structure.
86 It returns 0, or -1 if there is an error. 90 It returns 0, or -1 if there is an error.
87 */ 91 */
88 int SDL_SYS_JoystickOpen(SDL_Joystick *joystick) 92 int
89 { 93 SDL_SYS_JoystickOpen (SDL_Joystick * joystick)
90 /* allocate memory for system specific hardware data */ 94 {
91 joystick->hwdata = (struct joystick_hwdata *) SDL_malloc(sizeof(*joystick->hwdata)); 95 /* allocate memory for system specific hardware data */
92 if (joystick->hwdata == NULL) 96 joystick->hwdata =
93 { 97 (struct joystick_hwdata *) SDL_malloc (sizeof (*joystick->hwdata));
94 SDL_OutOfMemory(); 98 if (joystick->hwdata == NULL) {
95 return(-1); 99 SDL_OutOfMemory ();
96 } 100 return (-1);
97 SDL_memset(joystick->hwdata, 0, sizeof(*joystick->hwdata)); 101 }
98 102 SDL_memset (joystick->hwdata, 0, sizeof (*joystick->hwdata));
99 /* fill nbuttons, naxes, and nhats fields */ 103
100 joystick->nbuttons = MAX_BUTTONS; 104 /* fill nbuttons, naxes, and nhats fields */
101 joystick->naxes = MAX_AXES; 105 joystick->nbuttons = MAX_BUTTONS;
102 joystick->nhats = MAX_HATS; 106 joystick->naxes = MAX_AXES;
103 return(0); 107 joystick->nhats = MAX_HATS;
108 return (0);
104 } 109 }
105 110
106 111
107 /* Function to update the state of a joystick - called as a device poll. 112 /* Function to update the state of a joystick - called as a device poll.
108 * This function shouldn't update the joystick structure directly, 113 * This function shouldn't update the joystick structure directly,
109 * but instead should call SDL_PrivateJoystick*() to deliver events 114 * but instead should call SDL_PrivateJoystick*() to deliver events
110 * and update joystick device state. 115 * and update joystick device state.
111 */ 116 */
112 117
113 void SDL_SYS_JoystickUpdate(SDL_Joystick *joystick) 118 void
114 { 119 SDL_SYS_JoystickUpdate (SDL_Joystick * joystick)
115 const int sdl_buttons[] = { 120 {
116 CONT_C, 121 const int sdl_buttons[] = {
117 CONT_B, 122 CONT_C,
118 CONT_A, 123 CONT_B,
119 CONT_START, 124 CONT_A,
120 CONT_Z, 125 CONT_START,
121 CONT_Y, 126 CONT_Z,
122 CONT_X, 127 CONT_Y,
123 CONT_D 128 CONT_X,
124 }; 129 CONT_D
125 130 };
126 uint8 addr; 131
127 cont_cond_t cond,*prev_cond; 132 uint8 addr;
128 int buttons,prev_buttons,i,changed; 133 cont_cond_t cond, *prev_cond;
129 134 int buttons, prev_buttons, i, changed;
130 addr = SYS_Joystick_addr[joystick->index]; 135
131 if (cont_get_cond(addr,&cond)<0) return; 136 addr = SYS_Joystick_addr[joystick->index];
132 137 if (cont_get_cond (addr, &cond) < 0)
133 buttons = cond.buttons; 138 return;
134 prev_buttons = joystick->hwdata->prev_buttons; 139
135 changed = buttons^prev_buttons; 140 buttons = cond.buttons;
136 141 prev_buttons = joystick->hwdata->prev_buttons;
137 if ((changed)&(CONT_DPAD_UP|CONT_DPAD_DOWN|CONT_DPAD_LEFT|CONT_DPAD_RIGHT)) { 142 changed = buttons ^ prev_buttons;
138 int hat = SDL_HAT_CENTERED; 143
139 if (buttons&CONT_DPAD_UP) hat|=SDL_HAT_UP; 144 if ((changed) &
140 if (buttons&CONT_DPAD_DOWN) hat|=SDL_HAT_DOWN; 145 (CONT_DPAD_UP | CONT_DPAD_DOWN | CONT_DPAD_LEFT | CONT_DPAD_RIGHT)) {
141 if (buttons&CONT_DPAD_LEFT) hat|=SDL_HAT_LEFT; 146 int hat = SDL_HAT_CENTERED;
142 if (buttons&CONT_DPAD_RIGHT) hat|=SDL_HAT_RIGHT; 147 if (buttons & CONT_DPAD_UP)
143 SDL_PrivateJoystickHat(joystick, 0, hat); 148 hat |= SDL_HAT_UP;
144 } 149 if (buttons & CONT_DPAD_DOWN)
145 if ((changed)&(CONT_DPAD2_UP|CONT_DPAD2_DOWN|CONT_DPAD2_LEFT|CONT_DPAD2_RIGHT)) { 150 hat |= SDL_HAT_DOWN;
146 int hat = SDL_HAT_CENTERED; 151 if (buttons & CONT_DPAD_LEFT)
147 if (buttons&CONT_DPAD2_UP) hat|=SDL_HAT_UP; 152 hat |= SDL_HAT_LEFT;
148 if (buttons&CONT_DPAD2_DOWN) hat|=SDL_HAT_DOWN; 153 if (buttons & CONT_DPAD_RIGHT)
149 if (buttons&CONT_DPAD2_LEFT) hat|=SDL_HAT_LEFT; 154 hat |= SDL_HAT_RIGHT;
150 if (buttons&CONT_DPAD2_RIGHT) hat|=SDL_HAT_RIGHT; 155 SDL_PrivateJoystickHat (joystick, 0, hat);
151 SDL_PrivateJoystickHat(joystick, 1, hat); 156 }
152 } 157 if ((changed) &
153 158 (CONT_DPAD2_UP | CONT_DPAD2_DOWN | CONT_DPAD2_LEFT |
154 for(i=0;i<sizeof(sdl_buttons)/sizeof(sdl_buttons[0]);i++) { 159 CONT_DPAD2_RIGHT)) {
155 if (changed & sdl_buttons[i]) { 160 int hat = SDL_HAT_CENTERED;
156 SDL_PrivateJoystickButton(joystick, i, (buttons & sdl_buttons[i])?SDL_PRESSED:SDL_RELEASED); 161 if (buttons & CONT_DPAD2_UP)
157 } 162 hat |= SDL_HAT_UP;
158 } 163 if (buttons & CONT_DPAD2_DOWN)
159 164 hat |= SDL_HAT_DOWN;
160 prev_cond = &joystick->hwdata->prev_cond; 165 if (buttons & CONT_DPAD2_LEFT)
161 if (cond.joyx!=prev_cond->joyx) 166 hat |= SDL_HAT_LEFT;
162 SDL_PrivateJoystickAxis(joystick, 0, cond.joyx-128); 167 if (buttons & CONT_DPAD2_RIGHT)
163 if (cond.joyy!=prev_cond->joyy) 168 hat |= SDL_HAT_RIGHT;
164 SDL_PrivateJoystickAxis(joystick, 1, cond.joyy-128); 169 SDL_PrivateJoystickHat (joystick, 1, hat);
165 if (cond.rtrig!=prev_cond->rtrig) 170 }
166 SDL_PrivateJoystickAxis(joystick, 2, cond.rtrig); 171
167 if (cond.ltrig!=prev_cond->ltrig) 172 for (i = 0; i < sizeof (sdl_buttons) / sizeof (sdl_buttons[0]); i++) {
168 SDL_PrivateJoystickAxis(joystick, 3, cond.ltrig); 173 if (changed & sdl_buttons[i]) {
169 if (cond.joy2x!=prev_cond->joy2x) 174 SDL_PrivateJoystickButton (joystick, i,
170 SDL_PrivateJoystickAxis(joystick, 4, cond.joy2x-128); 175 (buttons & sdl_buttons[i]) ?
171 if (cond.joy2y!=prev_cond->joy2y) 176 SDL_PRESSED : SDL_RELEASED);
172 SDL_PrivateJoystickAxis(joystick, 5, cond.joy2y-128); 177 }
173 178 }
174 joystick->hwdata->prev_buttons = buttons; 179
175 joystick->hwdata->prev_cond = cond; 180 prev_cond = &joystick->hwdata->prev_cond;
181 if (cond.joyx != prev_cond->joyx)
182 SDL_PrivateJoystickAxis (joystick, 0, cond.joyx - 128);
183 if (cond.joyy != prev_cond->joyy)
184 SDL_PrivateJoystickAxis (joystick, 1, cond.joyy - 128);
185 if (cond.rtrig != prev_cond->rtrig)
186 SDL_PrivateJoystickAxis (joystick, 2, cond.rtrig);
187 if (cond.ltrig != prev_cond->ltrig)
188 SDL_PrivateJoystickAxis (joystick, 3, cond.ltrig);
189 if (cond.joy2x != prev_cond->joy2x)
190 SDL_PrivateJoystickAxis (joystick, 4, cond.joy2x - 128);
191 if (cond.joy2y != prev_cond->joy2y)
192 SDL_PrivateJoystickAxis (joystick, 5, cond.joy2y - 128);
193
194 joystick->hwdata->prev_buttons = buttons;
195 joystick->hwdata->prev_cond = cond;
176 } 196 }
177 197
178 /* Function to close a joystick after use */ 198 /* Function to close a joystick after use */
179 void SDL_SYS_JoystickClose(SDL_Joystick *joystick) 199 void
180 { 200 SDL_SYS_JoystickClose (SDL_Joystick * joystick)
181 if (joystick->hwdata != NULL) { 201 {
182 /* free system specific hardware data */ 202 if (joystick->hwdata != NULL) {
183 SDL_free(joystick->hwdata); 203 /* free system specific hardware data */
184 } 204 SDL_free (joystick->hwdata);
205 }
185 } 206 }
186 207
187 /* Function to perform any system-specific joystick related cleanup */ 208 /* Function to perform any system-specific joystick related cleanup */
188 void SDL_SYS_JoystickQuit(void) 209 void
189 { 210 SDL_SYS_JoystickQuit (void)
190 return; 211 {
212 return;
191 } 213 }
192 214
193 #endif /* SDL_JOYSTICK_DC */ 215 #endif /* SDL_JOYSTICK_DC */
216 /* vi: set ts=4 sw=4 expandtab: */